{"url":"https://mdsoptics.com/bushnell-m-18.html?zenid=380b9dcaa35db29310aafea8dfefb8f2","date":"2017-08-20T19:15:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886106984.52/warc/CC-MAIN-20170820185216-20170820205216-00373.warc.gz","language_score":0.9177176356315613,"token_count":153,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__101177806","lang":"en","text":"Bushnell Outdoor Products has been the industry leader in rifle scopes, sports optics and outdoor accessories for over 50 years. Bushnell rifle scopes are among the best made. Bushnell's dedication to emerging technologies, leading edge design and performance innovation is what makes them one of the most reputable and recognized companies in the world producing fine Bushnell rifle scopes, spotting scopes, binoculars and other outdoors products.\nBushnell prides itself on using only the highest-quality materials and premium components in all of its products. You will not find more well-crafted examples of workmanship. MDS Optics carries the full line of Bushnell binoculars, night vision, rifle scopes and spotter scopes for sale in our online store.","domain":"optical_engineering"}
{"url":"https://webrepswholesale.com/category.jhtm?cid=3182","date":"2023-09-22T15:18:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506420.84/warc/CC-MAIN-20230922134342-20230922164342-00835.warc.gz","language_score":0.9209681153297424,"token_count":102,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__203482242","lang":"en","text":"Vision Screen Louvers\nVision Screens are a louver system designed to allow air transfer between the front and back of the screen but block the vision through the louvers. Vision screens can be designed with a continual vane look or a series of panels design. Vision Screens are available in several finishes including Kynar 20 Year Color Match, anodizing, prime coat, and mill finish.\nCall us at 800-810-3280 and we will get you a quote for your project.","domain":"optical_engineering"}
{"url":"https://treknature.com/read.php@f=1&t=113046&m=143007.html","date":"2021-04-11T09:46:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038061820.19/warc/CC-MAIN-20210411085610-20210411115610-00143.warc.gz","language_score":0.9613029360771179,"token_count":281,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__33956828","lang":"en","text":"The AF-S lenses have a motor in the lens body to make focusing much quicker, the AF lenses do not. If for instance you want to photograph a moving subject, such as a bird in flight, the autofocus on the AF-S lenses would maintain focus more consistently on the moving subject than most AF lenses. Also if you wanted to use a Teleconverter in the future to increase your focal length or zoom reach, the only Nikkor converters available now are not compatible with AF lenses, only AF-S (but not all AF-S lenses, you should check before purchase if this is a concern to you).\nThe speed of autofocus on each lens will differ, some AF lenses are quite fast, I have an old AF 80-200 which I've used many times for birds in flight. The autofocus on the 80-400 is notoriously slow, so with moving subjects you may not always get the photo you were hoping for as the AF system might not keep up. For stationary subjects though it is fine and the 80-400 is capable of producing good detailed images. As far as I'm aware there is only one version of the 80-400 which is the AF version. The AF-S version was never made but would be a great lens should it ever be made available.\nHope this helps, please ask more if not.","domain":"optical_engineering"}
{"url":"http://advancedcentreforeyes.com/investigations.php","date":"2018-10-19T11:05:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583512395.23/warc/CC-MAIN-20181019103957-20181019125457-00426.warc.gz","language_score":0.9063342809677124,"token_count":520,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__151325692","lang":"en","text":"Investigations: FFA, OCT, Ultrasound, Perimetry\nWaht is Investigations ?\nIt is a fundal photography, performed in rapid sequence following intravenous injection of fluorescein dye. It provides three main information:\n- the flow characteristics in the blood vessels as the dye reaches and circulates through the retina and choroid\n- it records fine details of the pigment epithelium and retinal circulation that may not otherwise be visible\n- give a clear picture of the retinal vessels and assessment of their functional integrity.\nOptical Coherence Tomography(OCT)\nOptical coherence tomography (OCT) is an optical signal acquisition and processing method. It captures micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is an interferometric technique, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another similar technique, typically penetrates less deeply into the sample.\nAn eye and orbit ultrasound is a test that uses high-frequency sound waves to get measurements and produce detailed images of your eye and eye orbit. The orbit is the socket in your skull in which your eye sits.\nSometimes called eye studies, the procedure is usually performed by an ophthalmologist (a doctor specializing in diagnosing and treating eye disorders and diseases). Eye studies can also be performed by a technician in an office, outpatient centre, or hospital.\nOur visual world is composed of images of colors, textures, edges and contrasts. In addition, these images may be moving or flickering. The goal of visual testing is to quantitate of these functions.\nTraditionally we have tested visual function as visual acuity – the capacity to discriminate the fine details of objects and visual field – the portion of space in which objects are visible at the same moment during steady fixation of gaze in one direction. Color vision testing, flicker sensitivity, contrast sensitivity, pupillary responses and motion testing are some of the other methods of quantitating vision.\nPerimetry is the systematic measurement of visual field function. The two most commonly used types of perimetry are Goldmann kinetic perimetry and threshold static automated perimetry. With Goldmann or “kinetic” perimetry, a trained perimetrist moves the stimulus; stimulus brightness is held constant. The limits of the visual field are mapped to lights of different sizes and brightness.","domain":"optical_engineering"}
{"url":"http://www.clarityeyegroup.com/technology/","date":"2019-05-25T19:07:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232258439.57/warc/CC-MAIN-20190525184948-20190525210948-00513.warc.gz","language_score":0.88560551404953,"token_count":1038,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__185189563","lang":"en","text":"Clarity Eye Group – Technology\nServing Orange County, Huntington Beach, Newport Beach, Fountain Valley\nAt Clarity Eye Group, our surgeons use only the latest, cutting-edge technology, training, and techniques to achieve the best results for our patients. This approach has helped them establish a reputation as some of the best cataract surgery Orange County specialists, as well as leading Visian ICLs experts.\n- Optical Coherence Tomography\n- Optos® OPTOMAP™\n- Heidelberg Retina Tomograph (HRT II)\n- Visual Fields\n- ZEISS® IOL Master™\nOptical Coherence Tomography\nOptical coherence tomography (OCT) is a very sensitive non-contact diagnostic test commonly used to detect glaucoma, retinal thickening associated with macular degeneration, and numerous other retinal conditions.\nOCT works by using light waves to create a high-resolution cross-sectional image of the inner structures of the eye in order to detect retinal changes below the surface of the retina such as macular holes, macular edema, and other eye conditions. OCT can reveal much more detail to the inner workings of the retina when compared to a simple dilated exam for patients with macular degeneration, glaucoma, diabetic retinopathy, and many other retinal conditions. Because of this, doctors can more specifically assess and diagnose these conditions.\nA leading tool available to doctors during the initial screening to detect eye diseases and disorders is the Optos® OPTOMAP™. The image created by the OPTOMAP™ provides the doctor with a digital wide-field of view of the patient’s retina, which is helpful in detecting eye diseases and disorders that may be missed using conventional retinal examination techniques. With this new tool, patients have the benefit of not necessarily needing dilation to exam the retina while at the same time providing a much better level of detail in the retina to follow changes in retinal conditions.\nHeidelberg Retina Tomograph (HRT II)\nThe Heidelberg Retina Tomograph is a cutting-edge medical device used by doctors to examine the rear portion of the eye for the presence of various retinal diseases and disorders such as glaucoma. The HRT II uses a laser to scan the patient’s optic nerve head, producing three-dimensional images of the optic disc within the eye, and calculating the thickness of the retinal nerve fibers. Defects in the fibers can be an early telltale sign that a patient is developing glaucoma. The HRT II allows our doctors to apply statistical analysis to the optic nerve that is suspect for early glaucoma damage. The HRT II test takes less than 15 minutes. Because early detection of glaucoma is imperative in preserving vision, the HRT II can be an invaluable tool.\nThe visual field is the total area in which objects can be seen in the peripheral (side) vision while the eye is focused on a central point. A visual field test measures how much “side vision” a person has. Advances in computer technology have greatly enhanced the ability of doctors to measure a patient’s visual field.\nHumphrey Visual Field Analyzer\nThe Humphrey Visual Field Analyzer is a computerized machine used by doctors to measure the visual fields that are visible to a patient. Analysis of visual fields is important to the proper diagnosis of glaucoma. The machine uses flashing lights cast inside a viewing hood to determine how well a patient can see. The lights appear in different vision areas, and with the patient’s head remaining still during the test, the patient’s visual field can be determined.\nZEISS® IOL Master™\nThe ZEISS® IOL Master™ is a device that uses partial coherence interferometry to measure the eye, calculate the dimensions and surface curvature, and evaluate the power of the intraocular lens, all of which are necessary before cataract surgery or removal of the natural lens can be performed. Measurements can be made quickly and efficiently without contact with the eye, which eliminates the need for anesthesia and greatly reduces the risk of corneal abrasions, eye infections and contamination of instruments. IOL Master™ technology, widely used in clinical ophthalmology, is much more accurate and predictable for choosing cataract replacement lenses, such as ReStor and Tecnis Multifocal. This technology also allows Clarity Eye Group’s surgeons to provide their Crystalens Orange County patients with the best possible vision correction results.\nContact Clarity Eye Group Today\nAt Clarity Eye Group, we are committed to providing our patients with the best and latest technology available in the science and practice of eye care. Using the most up-to-date techniques, equipment, and procedures, we are able to achieve consistently impressive results for our Orange County LASIK surgery and cataracts patients. Contact our practice today to schedule an appointment with one of our skilled doctors.","domain":"optical_engineering"}
{"url":"http://pianosonparade.com/tag/law-enforcement","date":"2024-04-23T23:40:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818835.29/warc/CC-MAIN-20240423223805-20240424013805-00343.warc.gz","language_score":0.9578173756599426,"token_count":449,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__144979791","lang":"en","text":"When planning to join a law enforcement agency or planning to go out for hunting, the tool can help you when you are in field during night. Monocular will best serve you the purpose. The night vision devices while looking out in dark act as your best friends. The device due to its versatility helps to unmount anduseit on its own. The night vision devices have came as a best alternative for binoculars and termed as best cheap night vision monocular.\nThe night vision devices are a tool with single eye piece. The eye piece allows the viewer to get a better view during night. The devices also amplify light so even in low light conditions the viewer is able to get clearer view of the object. A wide range and wide variety of best cheap night vision monocular are available in the market.\nSelection: as we all know there are different varieties of night vision devices are available making a right choice will be a tough job. Initially you have to consider whether you will be able to get a best cheap night vision monocular with the cost that you can afford. Compare the night vision devices and choose the one that serves your need.\nWhile buying a night vision device consider certain things and make sure the field of view is high as well as the magnificent is also high. The military personnel and law enforcement agencies should opt for night vision devices based on generation technology. The features get advanced from Gen1 to Gen 2 and Gen 3 and so on. You should not go for high magnificent power. When you are going outdoor make sure you go for environmental reviews and make sure the device is water proof and fog proof as well. Consider the operating temperature while buying the monocular. Make sure even it works in extreme situations. Keep in mind the device is shock resistant and sturdier and even can be used at extreme situations.You are traveling often then go for device which is light weight and compact and can be carried easily while traveling. Finally consider the life of the battery. Make sure the battery is long lasting when you go on outdoors. You can also go through reviews of the customers who may have bought and experienced the product. The reviews will also help you to make right decision while buying the night vision monocular.","domain":"optical_engineering"}
{"url":"https://www.kenking.cn/news/industry-news/what-are-the-alternatives-to-color-card-threads-for-color-selection-and-matching-in-the-textile-industry.html","date":"2023-11-30T06:39:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00025.warc.gz","language_score":0.8820170760154724,"token_count":556,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__54693953","lang":"en","text":"What are the alternatives to color card threads for color selection and matching in the textile industry?\nPosted by Admin | 21 Sep\nIn the textile industry, color selection and matching are critical processes for achieving the desired color in fabrics and garments. While color card threads are commonly used, there are several alternative methods and technologies for color selection and matching: Spectrophotometers: Spectrophotometers are precise color measurement devices that capture and analyze the spectral characteristics of a color. They provide digital color data, making it easier to match and reproduce colors accurately. Colorimeters: Colorimeters are portable color measurement tools that provide quick and simple color assessments. They are often used for quality control and color matching in textiles. Color Management Software: Color management software, combined with spectrophotometers or colorimeters, allows for precise color analysis, correction, and matching. It is commonly used in the printing and dyeing processes. Digital Color Libraries: Digital color libraries contain color data and can be accessed through software or online platforms. Pantone, for example, offers digital color libraries that can be used for color selection and matching. Computer-Aided Design (CAD) Software: CAD software allows designers to create and manipulate digital color palettes and designs. It can assist in visualizing and selecting colors for textile products. Dye Dispensing Systems: Automated dye dispensing systems accurately measure and dispense dyes for textile production. These systems can be programmed to achieve precise color formulations. Color Matching Cabinets: Color matching cabinets provide controlled lighting conditions for visual color assessment. They are used to evaluate how colors appear under different lighting sources. Color Sensors and Cameras: Color sensors and cameras can capture and analyze colors in real-time during the manufacturing process, helping to ensure color consistency. Spectrocolorimeters: Spectrocolorimeters combine color measurement and imaging capabilities. They are used to measure and visually assess color samples simultaneously. Artificial Intelligence (AI): AI-powered color matching systems can analyze and predict color formulations based on historical data and color trends, improving efficiency and accuracy. Online Color Matching Tools: Many textile companies and suppliers provide online color matching tools and services that allow customers to select and customize colors digitally. Digital Printing Technology: Digital textile printing technology allows for on-demand and highly customizable color printing, eliminating the need for traditional color cards. Color Apps and Mobile Tools: Mobile apps and tools are available for color selection and matching on smartphones and tablets. These can be useful for designers and manufacturers on the go. While color card threads remain a valuable reference, these alternative methods and technologies offer more precision, efficiency, and flexibility in color selection and matching processes in the textile industry. The choice of method depends on the specific needs and goals of the textile manufacturer or designer.","domain":"optical_engineering"}
{"url":"http://free-thaimarket.com/catalog.php?idp=1212","date":"2019-02-22T18:59:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247522457.72/warc/CC-MAIN-20190222180107-20190222202107-00346.warc.gz","language_score":0.8420426249504089,"token_count":204,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__191890224","lang":"en","text":"New discount price,Fast shipping;today only\n- VIERA Link: Allows the interlinked operation of various AV devices--from DVD and Blu-ray Disc players to home theater sound systems to digital cameras and camcorders--using only the VIERA remote control by simply connecting the devices to each other by an HDMI cable (see pop-up illustration).\n- VIERA Image Viewer: View full-HD images with the integrated SD card slot, enabling you to view JPEG photos captured from your digital camera or camcorder on the big screen. Navigate your images via an easy-to-use thumbnail display.\n- In Plane Switching (IPS): The latest iteration of Panasonics IPS LCD panel features excellent light transmittance and a wide viewing angle. The wide 178-degree viewing angle--both horizontally and vertically--ensures clear images even when viewed from an angle. And the panel backlight's wide transmission aperture enhances the contrast between light and dark, improving motion-image response.","domain":"optical_engineering"}
{"url":"http://www.tissan.com/o10/7mii0.php?tz=dHlwej01Jmd1aWNnY2E9MTc2JnR6MTQxPXR5cGVzLW9mLWlwbC1sYXNlcnM=","date":"2019-08-23T04:21:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027317847.79/warc/CC-MAIN-20190823041746-20190823063746-00272.warc.gz","language_score":0.9305374622344971,"token_count":8858,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__128273276","lang":"en","text":"It uses a broad spectrum of light with many wavelengths meaning it leads to unfocused energy around the hair and skin area. One machine cannot do everything. No one laser or light treatment can treat pimples, blackheads, whiteheads, acne cysts, and acne nodules. (FYI, IPL is not to be confused with lasers. But when searching for the right aesthetic laser for your practice, it can be helpful to understand the whos and the whats of the industry. Knowing which IPL or laser settings to choose requires experience with many different patients – seeing what works and what doesn’t in different types of skin and situations. Lasers in Surgery and Medicine. Robert Anolik is a prominent cosmetic dermatologist and researcher in New York whose knowledge of and experience with the newest skin-improving technologies in multiple areas of dermatology—from lasers to radiofrequency to Whereas lasers emit single wavelengths of light energy, intense pulsed light (IPL) devices emit polychromatic light in a broad wavelength spectrum, typically between 400 and 1400 nm. There are also intense light treatments ( IPL ) that are not laser treatments, but work in pulses to clear lesions and more. Even when people say laser, there are different types of laser. Laser or IPL hair removal? Which is better IPL or Laser hair removal? Every clinic will say their machine is the best.\nHelps consumers make informed decisions about laser hair removal at Ideal Image such as what type of lasers are used, who performs the treatment, the costs, and safety of all hair removal procedures. Different lasers can be used for different skin types in laser hair removal. The E-Light IPL Laser Machine Zemits Light Expert is a new innovative device for laser skin and hair treatments. Intense Pulsed Light, or IPL, is a revolutionary technology that uses light therapy to focus on and treat a variety of skin issues. About 93% of these are ipl machine, 2% are laser beauty equipment, and 1% are epilator. One of the most significant medical breakthroughs, as of late IPL, which stands for Intense Pulsed Light, is another form of hair removal very similar to laser hair removal. Because of the way IPL works, this can lead to burns or other negative side effects for darker skin tones. IPL can only be used on lighter skin types and is not safe for dark skin. , Narurkar V. The difference between intense pulsed light (IPL) and laser is that laser uses only one wavelength whereas IPL has a range of light wavelengths.\nIPL technology is also widely used for treating skin in a process known as photo rejuvenation commonly referred to as the reversal of skin aging. My Q. The technique directs short, concentrated pulsating beams of light at irregular Laser and light-based methods are sometimes called phototricholysis or photoepilation. The various types of lasers differ based on what produces the beam itself. Cheaper than lasers; More compact than most lasers; Results are comparable to the 810 nm Diode or the 770 nm Alexandrite lasers for hair and to the 532 nm KTP Laser, the 595 Pulsed Dye Laser for the treatment of Rosacea and vascular Technology Harmony XL Pro is the advanced version of the all-inclusive Harmony XL treatment platform. SHR hair removal, IPL, CO2 laser There are two types of photofacial — intense pulsed light (IPL) photofacials and light emitting diode (LED) photofacials — and each has its benefits and drawbacks. Lasers can also be modified when combined with other elements, such as gases, precious stones and metals. IPL stands for Intense Pulsed Light. The principle for both treatments is the same and is based on using targeted light energy which is absorbed by the hair follicles, damaging them, so that it eventually prevents hair regrowth. Selective Photothermolysis: Photothermolysis means using light (photo) to heat (thermo) a selected area for destruction (lysis).\nTJS, Inc. The role of light-based technologies in dermatology has expanded dramatically in recent years. In 1991, physicist Dr. You can use IPL to minimize or remove: IPL is similar to a laser treatment IPL, which stands for Intense Pulsed Light, is another form of hair removal very similar to laser hair removal. Lasers are finding ever increasing military applications -- principally for target acquisition, fire control, and training. IPL Photo Rejuvenation. If you think about it, dark colours naturally absorb more light. IPL Treatments. You will find tw Some of the advantages to IPL hair removal treatments include: The light beam may be safe for a wider spectrum of skin tones and hair colors than some other types of lasers; The FDA has approved IPL for permanent hair reduction; IPL hair removal may be more cost effective than laser treatments, because there is less time involved Photomodulation is another example of how lasers or light sources could be used to affect cellular function. I used to know the best kind of machine, but don't remember now.\nPicosecond lasers have very short pulses. Laser and IPL hair removal both work on the same principle. IPL has little downtime and is effective for redness, rosacea and excess melanin A Guide to Lasers—And What’s Right For Your Skin A board-certified dermatologist and clinical assistant professor of dermatology at the NYU School of Medicine, Dr. 4612. Although this depends heavily on your body type, most people find IPL treatments less painful. If you are considering having a Fraxel procedure done, it is helpful to have a basic understanding of how it works and three treatment levels that are available. Each of these levels use a different laser. It is the process by which lasers work to treat skin problems. BBL – or Broad Based Light – is a brand name for one of the better quality IPLs on the market. Photofacials improve the signs of sun damage, redness, and brown spots on the face, hands, and body.\nThe second group includes mid infra red lasers that target water in the dermis to effect dermal heat deposition. Shimon Eckhouse invented and patented intense pulsed light (IPL), a significant advancement over conventional lasers, and for nearly a decade, IPL remained the industry standard for many non-invasive aesthetic procedures. It had been performed experimentally for about twenty years before becoming commercially available in 1995 and 1996. Limelight Laser (IPL) IPL (Limelight) is a non-invasive laser that is customizable for different skin types. Types of Lasers There are many types of lasers available for research, medical, industrial, and commercial uses. The beauty of these types of medical lasers are that they are not attracted to the melanin in the skin, and have more of an affinity to blood supply (the vascular system). BBL Overview The most significant benefit of choosing IPL laser treatment over other forms of laser treatment is that IPL technology is non-ablative. Diode lasers deliver high frequency, low fluence pulses and can be safely used on all skin types. By contrast, a medical spa, plastic surgeon with a medical spa, or dermatologist office might have a whole array of machines, both lasers, and IPL, so they can use the best one for your skin. Someone recently told me how great the fraxel laser is for resurfacing the skin.\nThe use of intense pulsed light (IPL) and laser systems for hair removal has been well established for a number of years. But difference between level of severity is so small that it can be neglected if those devices are used wisely. 70. Permanent hair removal. Most patients respond well to laser hair removal, and a lot of experts suggest that the former is a better option as well, but there are always exceptions to the case. The benefits of photorejuvenation treatments are achieved with little discomfort and minimal risk. IPL works on the same principle as many lasers—light energy is absorbed by the unwanted hair, which heats up enough to damage the follicle, slowing hair growth and eventually preventing it entirely. There are many variables involved in aesthetic lasers, including the active laser medium, wavelength, and targeted chromophore. Fraxel lasers can also remove some tattoos while IPL is contraindicated for tattoo removal. There are now a number of devices delivering different types of light for an ever-increasing number of cosmetic treatments.\nSave up to 70% at the Cosmetic Laser Warehouse on all used cosmetic lasers! 954. g. Laser and IPL Skin Rejuvenation background information. Types of lasers and lights used to treat acne. Syneron has an easy reference chart that explains the potential damage to skin based on treatment types offered. We provide ourpatients with optimal cosmetic enhancement using state of the art laser and light systems. Technical and biophysical aspects of lasers and IPL devices are first discussed in depth. Laser resurfacing is a treatment to reduce facial wrinkles and skin irregularities, such as blemishes or acne scars. They can target a specific tissue and damage the Yes. The difference in these technologies is that lasers use a single, specific wavelength of light to target a specific skin and hair color whereas IPL uses an intense, broad-spectrum light that contains multiple wavelengths to target melanin in the hair follicle.\nBecause IPL devices emit a range of Treatment versatility: Hair reduction on all skin types, benign pigmented lesions, atrophic acne scars, vascular lesions and fine lines & wrinkles; Cost effective ownership with no consumable costs: no sprays, no tips, no cards, no hassles! Optional Twain IPL can be added to expand your treatment offerings even further . Skin Types. It is an effective alternative to traditional methods such as electrolysis and waxing, allowing long-term, and often permanent, hair removal. PICO lasers can also treat stubborn browns and dermal browns more effectively than epidermal browns. 8GW), the efficacy and speed of picosecond pulses with the proven profile of nanosecond Q-switched pulses across three primary laser wavelengths – 1064nm, 532nm and 694nm. (See other light-based cosmetic applications below. That is that light energy is absorbed by areas of high pigment such as hairs, which are therefore heated up. ” The E-Light IPL Laser Machine Zemits Light Expert is a new innovative device for laser skin and hair treatments. Safer option for darker skinned individuals. While IPL can be used for many different types of skin concerns, such as pigmentation and sun damage, it is not specifically designed to treat any of these conditions.\nIPL PhotoFacial Articles Below is a chart highlighting the different lasers and wavelengths that are available and what skin types they can IPL Photofacials and Laser Skin Resurfacing being two examples of common skin treatments for diminishing the signs of aging, ridding the complexion of blemishes and improving skin tone and texture. Liquid lasers 4. The word \"laser\" is an acronym for Light Amplification by Stimulated Emission of Radiation. Intense pulsed light (IPL), a technology with a wide range of emission wavelengths (410-1200 nm), has been applied in many fields ( Babilas et al. I have used many IPL’s and Lasers and I have found Novalis’ Krypton light source technology provides more comfort and greater efficacy than any other device I have used. PTF light penetrates through epidermis into dermis and is high-selectively absorbed by melanin in hair and hair follicle, producing photothermal effect, conducting the energy from hair section to hair root, rising the temperature of melanin rapidly and decomposing it, thus reaching the effect of hair removal. Carbon Dioxide Lasers. The Different Types of Cosmetic Lasers: Cosmetic lasers come in a wide variety, distinguished by their wave length and their mode of delivering the laser. The development of optical diagnostic equipment is also important to better classify ethnic skin types so that therapeutic outcomes of skin rejuvenation in Asian patients can be improved. Hair removal.\nThis is not a necessary risk! Offering 4 different lasers and an IPL in one convenient platform, the system can be used for a variety of cosmetic procedures, including skin resurfacing, tattoo removal, removal of pigmented lesions, vascular reduction, hair removal and more. Instead of a single wavelength of light as with a laser, IPL uses a bright light in front of which filters are placed which filter out most wavelengths except those taken up by pigment and blood vessels, depending on the filter used. We manufacture direct replacement components for all types of lasers and offer an experienced technical staff unparalleled in our industry. IPL Pros. Solid lasers 3. What is a laser? Laser stands for Light Amplification by the Stimulated Emission of Radiation. What types of lasers are there? There are several types of lasers used in skin laser surgery. Laser hair removal is a permanent hair removal technology, which uses the principle of selective photothermal dynamics of laser to irrad BroadBand Light (BBL)™ is the world’s most powerful IPL device on the market. IPL stands for intense pulsed light. An IPL laser uses \"intense pulsed light\" to gently and safely remove hair on the face, legs, back, and bikini/pubic areas.\nSummary. There are two basic types of lasers used for cosmetic purposes: ablative and nonablative. WHAT IS Photorejuvenation (IPL)? Photorejuvenation is a treatment that uses intense pulsed light (IPL), a non-laser light source, to fix pigmentation issues, like sun damage, brown spots, and freckles, and vascular abnormalities such as redness, broken capillaries, spider veins, and rosacea. that was something I'd heard as well. IPL systems work on the same principles as lasers in that light energy is absorbed into particular target cells with color (chromophores) in the skin. In the world of lasers, Rubies can be considered relative old timers, having been in use for laser hair removal What is Laser Dermatology? Top dermatologists have been using lasers to treat skin conditions for more than 40 years. Laser vs IPL Hair Removal Hair removal with lasers and IPL (intense pulsed light) devices is commonly performed in most dermatology practices. Some offices refer to IPL laser photorejuvenation as a Photofacial or Fotofacial. Permanent hair removal, How it works, and which skin types it works best for. , 2010).\nWhen you compare IPL to our lasers (because IPL isn’t a laser!) it’s a no brainer that laser hair removal is the better solution to your unwanted hair. Tamia was a trainer in IPL machines, Lasers and many other types of beauty equipment working with foremost plastic surgery practices Australia wide. Each one of them is used to treat a specific skin condition. ) The Different Types of Cosmetic Lasers: Cosmetic lasers come in a wide variety, distinguished by their wave length and their mode of delivering the laser. Laser Hair Removal You have almost definitely heard about the IPL and laser hair removal equipment industry that has been thriving for nearly 20 years. We have great deals on Lumenis Quantum IPL lasers for sale. Both lasers and IPL devices (collectively referred to as lasers*) used for hair reduction operate under the principle of selective photothermolysis. The first laser skin treatments were effective for port-wine stains, benign growths, and other benign vascular marks, but a high rate of scarring was an undesirable side effect. Jay, M. Which IPL machine is the best? - I had IPL done about 7 years ago (approximately 6 treatments were performed).\nThis means that the light does NOT remove the superficial layers of skin. Intense Pulsed Light (IPL) Another treatment option is intense pulsed light (IPL). The following explains what the different types of lasers and lights can — and cannot — treat. Lasers have become something of a “miracle” technology in modern medicine in that they are used to provide many different types of services. What is Intense Pulsed Light (IPL)? IPL™ PhotoFacial uses precise amounts of visible light (IPL is ‘intense pulsed light’) to effectively treat facial redness and improve sun-damaged skin. Lasers are often described by the kind of lasing medium they use - solid state, gas, excimer, dye, or semiconductor. The laws surrounding the operation of IPL and lasers vary widely. There are various types of laser skin treatments. Q-switched lasers in Caucasian and Asian skin types including lesions with a significant dermal component [17-20]. the treatment of skin pigmentation, sun damage, and thread veins) as well as to alleviate dermatologic diseases such as acne.\nFacts about laser hair removal. LED treatments (often referred to as a non-IPL or \"light therapy\") work best for minor skin problems since they act only on the outer layer of the skin's epidermis. Major manufacturers of IPL Intense Pulsed Light devices: Candela, Palomar, Cutera, Lumenis and Sciton. A diode laser uses semiconductor technology that produces coherent projection of light in the visible to infrared range. They are only available as in-office treatments. Non-ablative (non-surgical) lasers—like the kind we offer can achieve dramatic results, over the course of several treatments usually spaced several weeks apart, with minimal discomfort and flushing or redness that goes away within several hours or days. Use of Intense Pulsed Light (IPL) in Indian Skin Types. IPL therapy, however, does not use lasers. Hair removal by laser has a lower risk of burning than IPL. The color codifies the type of laser material (see the figure description for more details).\nAlma lasers is a leading innovator of aesthetic lasers & radiofrequency devices for surgical, medical and beauty providers. But what is the difference between a photo facial, using an IPL laser and laser skin resurfacing? The Difference between IPL and Lasers A global leader in the field of minimally-invasive clinical solutions for the Surgical, Ophthalmology & Aesthetic markets. Lasers have a proven track record; while IPL has been shown to be effective in some cases, though not consistently. Aesthetic lasers can be ablative, non-ablative or fractional. IPL can be used on Asian skin however the settings and parameters must be exact or skin darkening can occur after IPL. It uses a light beam with a narrow spectrum to target specific chromophores in the skin. Understanding IPL Laser Hair Removal. Four different lasers are typically used for hair removal -- although many more patented ones do exist. Laser hair removal is one of the most popular cosmetic laser treatments performed. This determines the wavelength of the laser, its depth of penetration, and which conditions it can treat.\nHowever, there are some key differences between the two lasers. IPL treatments in ethnic skin types must be approached with extreme caution, with a reliable machine that produces adequate skin cooling and replicable power settings. Photorejuvenation, when done properly, almost always consists of a series of 3-5 treatments, usually one every three to six weeks. The heat damages the follicle, slowing hair growth and even preventing it completely. Painfulness and Post-Treatment Downtime Not any more! In fact, there are two types of lasers: non-ablative and ablative. The LimeLight IPL Facial, also known as Photofacial, is a new, non-invasive approach to skin revitalization using Cutera’s LimeLight. Laser is also an acronym. IPL devices are generally cheaper than laser devices, which is why many clinics choose to use them. Photo facial is a term for a light-based skin resurfacing treatment which is mostly used to treat brown spots, broken capillaries and to boost collagen. During this time Tamia has managed several Laser Clinics specialising in training staff on aesthetics for IPL and Lasers.\nIPL treatments can be an effective way to improve the appearance and radiance of your skin with no downtime. PICO lasers work by using ultrafast pulses (PICO= 1 trillionth of a second) to help treat brownspots, redness, and even wrinkles. Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. Intense pulsed light devices differ from lasers in that they emit light containing a spectrum of colours (many wavelengths) over a generally broader and less controlled area. The difference is that IPL uses a full spectrum of light with different scattered wavelengths, while lasers use a single focused wavelength of light. IPL (intense pulsed light) technology is technically not a laser treatment. Having said that, some IPL systems are still suitable to be used on darker skin. Featuring new technologies, handpieces and treatment innovations, Harmony XL Pro allows you to treat the widest variety of indications, addressing the aesthetic concerns of patients of nearly all ages and populations. Intense pulsed light (IPL) is a technology used by cosmetic and medical practitioners to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, photorejuvenation (e. Intense Pulse Light (IPL) Treatment at the Dermatology & Laser Institute, Venice, Fl is a comprehensive skin care center and clinical dermatology facility.\nA carbon dioxide laser, or CO2 laser, is the grandparent of laser skin resurfacing. 2006. is, does the heat generated during Older IPL, and any current IPL, or laser etc. IPL, or intense pulse light, is a technology similar to laser. Let’s say we had a brown spot we wanted to treat (also known as a sun freckle, lentigo or age spot). These lasers are termed rangefinders, target designators, and direct-fire simulators Frequently Asked Questions about Lasers. Safety: IPL devices are riskier than particular types of lasers. Alibaba. Test Results: Intense Pulsed Light (IPL) vs Laser Hair Removal on Telegraph Beauty. This allows the use of less optical energy, which increases treatment safety in even darker skin types.\nJohn Cook, who runs two practices in the Chicago area. Comparison of StarLux LuxG with Long Pulsed PDL, Long Pulsed KTP, and Traditional IPL for Treatment of Telangiectasias. Are there different types of fraxel lasers? Answer: There are 2 different types of Fraxel lasers. damage the capillaries that feed the skin the nutrients, etc that the skin needs to stay as healthy and firm as possible? IPL machines are Not lasers. So, in effect, IPL really only works relatively safely for lighter colour skin types. Day spas usually have IPL systems because they are less expensive than lasers and one machine can target several different things. How IPL Hair Removal Works That explains why so many models and types of lasers exist. For example, the Alexandrite laser is safe for lighter skin tones, while the nd:YAG is safe for darker skin types. IPL is less expense and faster than laser hair removal making it a very popular solution for hair removal. Intense pulsed light (IPL) is another modality for treating rosacea.\nSome lasers are used to target vascular lesions and red spots, while there are other lasers that target uneven skin and brown spots. Lasers can be safely used on dark skin because thanks to the ability to fine-tune the lasers, the heat will be absorbed by the hair follicle, not the skin. (Abstract) IPL Photofacial Rejuvenation Photofacial rejuvenation is a non-invasive rejuvenation of your skin using the remarkable technology of Intense Pulsed Light (IPL). At Gippsland Cosmetic Laser Clinic we have 6 completely different types of laser and light therapy machines to ensure your concerns will be treated with the right device, specifically designed to address your particular concern. Some lasers, on the other hand, are ablative (remove the outer layers of skin, which is known as resurfacing). The cosmetic lasers we sell use various types of technology such as: CO2, Nd:YAG, Diode, Flashlamp, IPL, Radiofrequency, BiPolar, Fractional; and more. While lasers also use intense light and heat to treat unwanted skin issues, they're comprised of a single wavelength of light instead of a broad spectrum. In other words, lasers tend to be very specific to the conditions they treat, whereas IPL devices are more generalist in their offering. Certain wavelengths of light are perfect for those with dark skin, even the darkest, type V African American. com offers 176 different types ipl products.\nThat’s why different types of lasers and light therapies are used to treat acne. The ultraviolet light components emitted by the lamp within the IPL device are normally filtered out before delivery of the light pulse to the target area. Like laser devices, IPL devices can produce different types of pulsed light. 5 Mid-infrared lasers; pulsed dye laser (PDL*) intense pulsed light (IPL) The main advantage of non-ablative laser rejuvenation is the lack of downtime for patients. Hi Dr. Undergoing this type of laser procedure can reverse many types of damage that result from sun exposure and other factors to reveal a fresher face. However, a laser is a single wavelength of light,” explains board-certified plastic surgeon Dr. Intense Pulsed Light (IPL) employs a broad spectrum of light, as opposed to a single wavelength emitted by lasers. The Different Types of Fraxel Lasers . Get to know some of the most popular types of laser, what they do, and whether one or another is the right option for you.\nWhen compared to laser epilation, the results are roughly equivalent. Kim Kardashian told Oprah she likes Fraxel laser treatments, and Dr. Safe and effective treatment for darker skin types can be of concern. Different types of lasers available for different skin types. The two most popular photofacial treatments are IPL (intense-pulsed light) and LED (light-emitting diode). The nature of lasers being more focused, smaller areas of light mean that they are more suited to treating people with darker skin because they greatly reduce the risk of burning compared to IPL. Speed: IPL devices damage hair roots faster than laser devices. While Nd:Yag is recommended for darker skin tones. What Problems Does IPL Treat? Intense Pulsed Light (abbreviated IPL) is a type of light treatment that is non-ablative. Fraxel Lasers.\n254. The devices target dermal vasculature (blood vessels in skin), and are effective in any conditions related to diffusing erythema, poikiloderma (sun damage) or rosacea. However the real answer is “ It Depends!”. 500-1200 nm). Your dermatologist will select the laser most appropriate for you depending on your hair and skin type and area of the body. “IPL, lasers, and other treatments are used to target specific conditions of the skin using different wavelengths and frequencies. Is IPL the same thing as BBL and a photofacial? Answer: They are related terms. Laser hair removal is the process of hair removal by means of exposure to pulses of laser light that destroy the hair follicle. The CO2 laser is also commonly used for the removal of warts and skin tags and for cutting skin in laser-assisted surgery. How do you find the best type of laser hair removal machine? Candela, YAG, LightSheer, Soprano—these are just a few of the types of laser hair removal lasers you might stumble across on your average medi-spa website.\nIf you are looking to reduce wrinkles or minimize scars, lasers are the best bet for all skin types. Both CO2 lasers and YAG lasers generate a very concentrated beam of light, but from there the lasers become very different in their uses and how they work. Lasers provide easily focused controllable energy capable of use to shape, cut, vaporize, heat, melt, and coagulate different types of tissues, both external and internal. IPL treatments are used for sun damage, skin redness and hair removal. Lasers are safer for dark skin types. Then it expanded into laser machines that could be used right in the comfort of one's own home. Lasers IPL is multi-wavelength, scattered light that is generated from flash lamps & is not “true laser” light because it spreads out instead of staying in a targeted beam. Lasers produce light of a single wavelength (color), which allows them to target a greater number of skin and vein problems. We at Medshare Laser boast a wide selection of new and used aesthetic lasers from some of the biggest manufacturers in the world. It stands Laser work in so many different ways, in part because there are so many different types of lasers.\nOne basic type of laser consists of a sealed tube, containing This Web site is designed to educate you about laser and intense pulsed light hair removal treatment methods. Gas lasers:- These lasers contain a mixture of helium and neon. Wavelengths of commercially available lasers. Being specific, lasers can be used in dark skin types much more reliably than IPLs. Semi Conductor lasers. We use both technologies here at Total Health & Skin Center. Green confirms they can help with sun damage, fine lines and dullness. There are many different types of lasers that can target a variety of skin conditions, including redness, rosacea, deep wrinkles, pores, veins, birthmarks, and more. For this reason, IPL is a bit of a “Jack of all trades, master of none”. The only light device you can buy as a consumer is a LED light therapy tool, which is the most gentle and least risky type of light treatment.\nCannot be used safely on darker skin types (IV-VI) or tanned skin In this innovative textbook, renowned experts from the United States, Europe, and Asia present the most up-to-date information in the field of cutaneous laser surgery and intense pulsed light (IPL) technology. We deliver luxury support & service through the life of your new equipment. Intense pulsed light, low fluence Q-switched lasers, and non-ablative fractionated lasers are the most common lasers and light treatments that are currently performed. Alexandrite, NdYAG, Diode and IPL all have certain skin types, hair types and hair size that they excel at. This mixture is packed up into a glass tube. Laser Hair Removal. Quizlet flashcards, activities and games help you improve your grades. The first group includes pulsed dye lasers (PDL) and intense pulsed light (IPL) devices, which initiates a cascade of events by controlled wounding of the dermal micro-vasculature. You can use IPL to minimize or remove: IPL is similar to a laser treatment Intense pulse light is a quick flash of multi-spectrum (many colours) non-coherent light. IPL, which stands for Intense Pulsed Light, is another form of hair removal very similar to laser hair removal.\nThe term “laser” stands for light amplification by stimulated emission of radiation Discovery Pico transcends all conventional stand-alone picosecond lasers by combining Industry-leading peak power (1. The other is a carbon dioxide laser referred to as Fraxel re:pair. Long term hair reduction result is more evident with laser than IPL. The terms IPL and laser are often mistakenly used interchangeably. Pulsed dye lasers have also shown some success, along with less aggressive nonlaser, light-based treatments, such as IPL and LED photofacials. Some lasers are better than others for hair removal in specific areas, and there are some subtle differences between systems. It’s a type of light therapy used to treat wrinkles, spots, and unwanted hair. Ablative lasers actually vaporize the top layers of damaged skin, while nonablative lasers work deeper in the skin without removing or otherwise damaging the top layers. Not all tattoo removal lasers are created equal, and we are here to help you find the best model to fit your needs. IPL uses selective photothermolysis for successful hair reduction.\nThe main difference between IPL and laser hair removal devices is the light source used. Therefore the risk for complications such as burning or scarring are significantly reduced. MedLaser USA does it all, we rent aesthetic lasers, buy aesthetic lasers, sell new & used aesthetic lasers, and offer a wide range of financings options for all types of medical equipment. Intense Pulsed Light (IPL) hair removal. The machine can also be successfully used for skin rejuvenation and the treatment of broken capillaries and acne infection. Here at British Institute of Lasers, we are proud to introduce the Nu eLite – a premium, cutting edge IPL Hair removal machine. For years, laser hair removal has been constantly compared with IPL in terms of effectiveness or efficiency. Medical lasers are medical devices that use precisely focused light sources to treat or remove tissues. The general rule is that the darker the skin, the more unsafe IPL is. Fraxel works through a process called fractional photothermolysis.\nIPL stands for Intense Pulsed Light or IPL. In Addition to Lasers, some light-based epilators use a xenon flashlamp which emits full-spectrum intense pulsed light (IPL). It started out with commercial machines, which were only operated by licensed technicians in spas or medical setting. A wide variety of different types ipl options are available to you, such as hair removal, blood vessels removal, and acne treatment. Below is a table showing the meaning of the different Classes of Lasers and LEDs according to the current version of EN 60825-1 and IEC 60825-1. IPL lasers can now also treat acne. The four most common lasers -- Ruby, Alexandrite, Nd:YAG, and Diode -- each boast distinct advantages. This packed mixture act as an active medium. While IPL can be used on only fairer skin types (1-4), PICO lasers can be used on all skin types. We have quality refurbished tattoo removal lasers that will fit virtually any budget, and we list out all the details of each model to help you make the right buying decision.\nBlistering and burning can lead to permanent scarring in people with these skin types. IPL emits non-coherent light of many different wavelengths. There are also other (non-laser) technology based treatments used in aesthetics such as Intense Pulsed Light (IPL) and Radio Frequency (RF). The content for this Web site was prepared by Harvey H. Gas lasers 2. Accuracy: Hair removal lasers are more precise than IPL. Aesthetic lasers target water, red hemoglobin or brown melanin. IPL produces a broad bandwidth of light wavelengths, whereas laser produces a single band of light. Laser FaciaL (IPL) Elos Plus combines Intense Pulsed Light (IPL) with RF which creates more specific heating of targets in the skin (blood vessels, redness, and brown spots). IPL is not a true laser as it has no specific wavelength, instead, it is made up of multiple wavelengths (approx.\nLasers use selective photothermolysis for successful hair reduction. IPL, or intense pulsed light, treats sun damage, freckles, melasma, uneven pigmentation, rosacea, and broken capillaries of the face, neck, chest and hands of certain skin types. Benefits Of IPL Hair Removal Cosmetic Lasers – Types of Technology. Lasers’ higher intensity makes them better at removing very thick hairs, although top-of-the-line IPL products offer comparable results. In this article we will first look at the different uses of the two laser types, and when each one is right for your application, and finally break down the benefits of each system. Cosmetic treatments using lasers, intense pulsed light (IPL) devices and light-emitting diode (LED) phototherapy, collectively known as light-based therapy, have grown significantly in popularity and availability in recent years. (Abstract) Miranda C. , a Board Certified Dermatologist and a Clinical Assistant Professor of Dermatology at Cornell Medical School. IPL laser hair removal is a very popular method of hair removal. At Victorian Cosmetic Dermal Clinics we have a medical laser for every skin type.\nBecause IPL and lasers are medical devices, you can’t buy them to use at home. Older laser technologies such as the continuous wave (CW) lasers of CO 2 and argon have been replaced with quasi-CW mode lasers and pulsed laser systems. “”I have been using Novalis Medical’s Clareon for over 7 years now. The procedure takes between 30 and 90 minutes depending on the type of photofacial, the treated area, and the practitioner’s experience. Several types of laser and light therapy have been studied in the treatment of melasma. Table of Laser Classes. IPL Hair Removal Machine (Multi-Platform) Featuring Nu eLite. However, as most of the light energy is in the shorter wavelengths, treatment of darker skin types is less effective than with the appropriate laser. The use of light as a medical treatment has grown significantly in recent years. Please check out our inventory of used aesthetic lasers, IPL equipment and cosmetic laser handpieces and call us with any questions.\nRemember: Compared to shaving or waxing, all four types of lasers for hair removal achieve longer lasting results with less frequent maintenance. IPL lasers can alter the intensity of its pulsed light beams with various filters, but it can't be refined to a single wavelength. We listen to our customers and do our best to address your concerns without delay! There are basically four types of lasers 1. Lasers are much more specific for one target, whereas IPL has a range of targets. IPL is a workhorse in dermatologists’ offices and not just for hair removal. Related Articles: IPL is excellent for rosacea IPL Pros. The Ruby laser, one of the oldest types of lasers used in hair removal, is best suited for those with light or fine hair and fair skin. One is in erbium laser referred to as Fraxel re:store. IPL PhotoFacial . Unlike other types of hair removal lasers that use a single light wavelength concentration, such as the Alexandrite Laser or the Diode Laser, IPL lasers use a full spectrum of light wavelengths.\nFrom teeth whitening to permanent hair removal to anti-aging treatments, many different types of lasers are used for numerous applications. Light from an IPL device, though, includes light of many different wavelengths, which makes the light look white. Lasers and intense pulsed light have been used to safely and effectively treat a diverse array of cutaneous conditions, including vascular and pigmented lesions, tattoos, scars, and undesired hair, while Types of Laser Skin Treatments. On the other hand, with laser hair removal, there are several options available for lasers to treat different skin types. World-renowned expert in developing & commercializing innovative energy-based technologies, including CO2 & Holmium Lasers, Intense Pulsed Light (IPL) & Radio-Frequency (RF) devices. Ablative: Ablative lasers were the first type of laser to be used in laser skin resurfacing Light source: IPL intense pulsed light. Randomized Study of Intense Pulsed Light and Pulsed Dye Laser in The Treatment of Facial Telangiectasia. The key to appropriate application is proper selection of the wave length of the light beam being utilized. IPL Hair Removal. Cheaper than lasers; More compact than most lasers; Results are comparable to the 810 nm Diode or the 770 nm Alexandrite lasers for hair and to the 532 nm KTP Laser, the 595 Pulsed Dye Laser for the treatment of Rosacea and vascular lesions; IPL Cons.\nLasers will be covered in the next post. It sets new standards in treating skin conditions associated with aging, active life styles, and sun damage. You can target melanin with a single, specific wavelength of light from a laser. Individual IPL treatments take less time, but laser hair removal shows results in fewer sessions. D. The procedure offers the advantage of improving skin tone and surface imperfections associated with aging and photodamage. The LimeLight IPL Facial is ideal for: Any part of your face; Neck Tamia has worked in the beauty industry for more than 12 years. As with lasers, the mode of action is heating of certain structures and chromophores, causing their destruction and resorption, but unlike lasers, IPL output is broad spectrum and can be modified using filters. Remember, all lasers and light therapy machines perform different tasks. is a technical laser company supporting industrial, medical, aesthetic/IPL, and scientific lasers.\nHowever, there have been few clinical studies directly comparing the efficiency of lasers and IPL devices in the same individual until recently. Ruby and Alexandrite lasers are recommended for pale skin tones. IPL vs Laser - the technology. I need at least one more to touch things up. Compared to the newer laser technologies, the Ruby laser can be more time-consuming because it covers a smaller area of skin at a time. BBL is available as a stand-alone compact system, and as part of Sciton’s JOULE™ platform. “If you have a lot of sun damage, you Lasers Miladys Advanced Book Chapter 8 study guide by louisa_brannon includes 91 questions covering vocabulary, terms and more. This means that the surface of the skin is left undamaged, since the lasers permeate through the outer skin layer to repair the skin from the inside out. Irwin, Loving this site! I did read your answer on lasers etc thinning the skin. types of ipl lasers","domain":"optical_engineering"}
{"url":"https://au.annke.com/products/h800-32ch-16-cam-system","date":"2024-03-03T05:06:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476205.65/warc/CC-MAIN-20240303043351-20240303073351-00221.warc.gz","language_score":0.8487382531166077,"token_count":636,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__86216737","lang":"en","text":"The 2.8 mm lens, with the high-end Sony IMX274 image sensor adjusted by professional engineers for hundreds of times, covers up to 123° diagonal FoV, and delivers best 4K Ultra HD footages in all environments.\n120 dB WDR, 3D DNR, BLC & HLC image enhancement algorithms help the camera capture breathtaking 4K images at any level of brightness.\nUnrivaled 4K in All Environments\nH800 has been tested in almost every scenario in your daily life, garages, front doors, stores, etc. both hot & cold temperatures. The cameras can still shoot stable & high-fidelity footages without glare in every testing environment.\nEXIR 2.0 Night Vision Tech with Smart IR\nEXIR 2.0 provides fast heat dissipation for long lifespan, improves the utilization of light greatly and keeps the spiders & insects away from the lens. It also removes the IR reflection, ensuring up to 100 ft night vision distance.\nSmart IR fixes the overexposed & underexposed image issues at night, providing clear videos in extremely low-light conditions.\nHigh-Fidelity Audio Recording\nThe built-in noise-cancelling microphone records clear voice from up to 20 ft away, enhancing the security coverage & the ability to interpret events. (Note: The listen-audio can be disabled.)\nTrue Plug & Play PoE Setup\nThe PoE connection is perfect, as both video & power are transferred via the same network cable, and gives you flexible installation. You can run a single Ethernet cable between the camera & NVR up to 330 ft. For longer distance, you can hook up a PoE switch (not included).\nAdvanced H.265+ Video Format\nANNKE H.265+ coding helps the camera record longer videos and consumes less bandwidth. Save your budgets on buying more HDDs.\nSmall File Sizes\nSend smaller file sizes to the network video recorder without losing 4K quality.\nLong Recording Time\nH.265+ coding allows for longer recording time before overwriting the older recordings.\nRemote 4K Live View\nView high-quality 4K Ultra HD live stream on your smart devices without all the data.\nA Truly Weatherproof Security Camera\nBuilt with IP67 weatherproof rating, the IP camera remains perfectly even being immersed in 1 m of water for 30 minutes. The camera has been tested in extremely hot & cold weather (-22 °F – 140 °F/-30 °C – 60 °C) and continues to record in exceptional 4K Ultra HD, without blur and no image distortion.\nWith the industry-leading Sony STARVIS IMX274 imaging sensor, ANNKE C800 4K PoE security camera delivers 100% vivid 8MP Ultra HD images (3840 X 2160 pixels), much clearer than other 8MP IP/analog surveillance cameras.\nRemote Viewing on the Go\nThis all-in-one system is designed for use with our innovative & intuitive ANNKE Vision App. You can quickly & easily control your system remotely via your smartphones, tablets or computers.","domain":"optical_engineering"}
{"url":"https://www.thouslite.com/custom-service","date":"2024-04-12T11:32:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00301.warc.gz","language_score":0.8975590467453003,"token_count":137,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__115682182","lang":"en","text":"SPD Tunable Lighting\nTHOUSLITE owns more than 100 color and white LED library with different peak wavelength output, ranging from ultra violet, visible to near infrared. Meanwhile, THOUSLITE has the ability to select the LED combinations for different applications. THOUSLITE is experienced in LED heat management, LED electrical design, LED IC driver design, etc. Moreover, THOUSLITE is the expert in spectral power distribution and its corresponding light quality parameters calculation, colorimetry, photometry, measurement, etc. THOUSLITE is willing to provide the dedicated service in customerized consumer and industrial spectral tunable light solutions to satisfy customer requirements.","domain":"optical_engineering"}
{"url":"http://nova-sol.com/capabilities/stabilization-support-systems/compass2","date":"2017-03-25T01:50:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218188773.10/warc/CC-MAIN-20170322212948-00391-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.921477735042572,"token_count":220,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__237351459","lang":"en","text":"The COMPact Airborne Stabilization System (COMPASS) was developed under NASA SBIR funding to provide the remote sensing community with a tool to correct pushbroom image data for aircraft motion in real-time. COMPASS was designed to accommodate a wide variety of existing and future spectral sensor systems, and provides added value to these sensors: the end product (a geo-registered data set) can be produced at a higher quality, higher reliability, and in a shorter amount of time.\nThe system was successfully flown in July 2003, and is scheduled to be delivered to the customer at NASA Goddard Space Flight Center in September of 2003. COMPASS coomprises the following:\n- IMU/GPS with NovaSol Kalman Filter implementation\n- Laptop Operator Interface, including mission planning software\n- Navigation Software\n- Motion Control Software\n- Optical Gimbal\n- Pilot Navigation Aid\n- Complete specifications can be found on the products page\nConceptual application of COMPASS\nTest flight. Left: RGB image from HSI data. Right: Recorded aircraft attitude.","domain":"optical_engineering"}
{"url":"https://presbyopiaphysician.com/issues/2022/december/mixing-and-matching-iols-a-new-normal/","date":"2024-04-24T23:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819971.86/warc/CC-MAIN-20240424205851-20240424235851-00714.warc.gz","language_score":0.9219536185264587,"token_count":1871,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__176994024","lang":"en","text":"IF YOU’RE A SURGEON WHO HESITATES TO USE 2 DIFFERENT lenses bilaterally for your cataract patients, you may want to rethink that strategy.\nMixing and matching lenses provides an excellent way to give your cataract patients clear vision at all distances, especially with the advanced presbyopia-correcting lenses coming on the market. It’s not too much to say that this is becoming the new normal.\nIn fact, you’re probably already mixing and matching lenses. For instance, if you place monofocal lenses, you’re likely not putting the same power lens in each eye. If you put a 19D monofocal lens in the left eye and a 20D monofocal lens in the right eye, the lenses are of different powers.\nIn this article, I’ll share the success I’ve had in mixing and matching intraocular lenses (IOLs), specifically using the TECNIS Symfony OptiBlue IOL from Johnson & Johnson Vision. I’ll discuss why this lens works so well, as well as patient selection.\nBest of Both Worlds\nSeveral years ago, when the first-generation presbyopia IOLs became available, surgeons didn’t mix and match lenses. Surgeons implanted the same lens in both eyes, and patients had to accept the vision that those lenses provided.\nNow, surgeons have a wealth of options available, including multifocals, trifocals, bifocals, and extended-depth-of-focus (EDOF) lenses. In my practice, my happiest patients are those for whom I’ve mixed and matched different lens technologies. Doing so provides them the best of both worlds in both vision quantity and quality.\nHigher-add multifocals or multifocals mixed with EDOF technology, such as the TECNIS Synergy IOL, provide excellent quantity of vision. For near vision especially, the TECNIS Synergy can provide a “best-in-class” result, with patients routinely J one plus.\nHowever, the patient might not have quality vision at every single focal point. When I have implanted the Synergy bilaterally, patients loved their intermediate and near vision, and most were pleased with their distance vision as well. However, some patients were less pleased with the quality of their distance vision, specifically with contrast and sharpness.\nI’d had experience using the TECNIS Monofocal 1-Piece IOL (ZLB00), which is the previous-generation TECNIS multifocal +3.25D in the nondominant eye and the first-generation Symfony in the dominant eye, with good results. I had not had much luck with other brands of multifocals or trifocals on the market.\nWith the launch of the Symfony OptiBlue presbyopia-correcting IOL in September 2022, which is the next-generation EDOF lens, my ability to mix and match lenses increased further. Like the Synergy, the Symfony OptiBlue IOL uses InteliLight, which combines three J&J proprietary technologies (See Trio of Technologies).\nBy mixing and matching these two lenses, I give my patients the benefit of the overall quality of vision and the quality of distance vision of the Symfony OptiBlue, combined with the excellent near vision that the Synergy provides.\nI also find the wider landing zone and wider sweet spot of the Symfony OptiBlue helpful. The Symfony OptiBlue, which also comes in a toric version, seems more tolerant of residual refractive error compared to the Synergy. With the Synergy, I find patients need to be very close to plano to experience the maximum benefit (See Symfony Specs).\nHaving implanted several hundred lenses using the Symfony OptiBlue in the dominant eye and the Synergy in the nondominant eye, I have seen remarkable results. I have not explanted any lenses, indicating high patient satisfaction.\nUsing the Symfony OptiBlue in the dominant eye and the Synergy in the nondominant eye suits the needs of just about all of my patients and has become my go-to solution. That’s the case especially for any patients who say they don’t want to wear reading glasses. By and large, most patients who are paying a premium for presbyopia-correcting IOLs don’t want to wear readers any of the time, so we try to reduce that as much as possible.\nFor example, imagine a myopic patient who is accustomed to excellent near vision without glasses. When time comes for cataract surgery, that patient may want really excellent near vision, say in the J one range. In that patient, mixing and matching the Symfony OptiBlue in the dominant eye and the Synergy in the nondominant eye can provide excellent results. This combination provides excellent distance and intermediate vision and very functional near vision.\n- Optic diameter: 6.0 mm\n- Overall diameter: 13.0 mm\n- Center thickness: 0.7 mm (20.0 D)\n- Powers: +5.0 D to +34.0 D in 0.5-D increments\n- Material: UV-absorbing hydrophobic acrylic with violet-light filter\nSource: Johnson & Johnson Vision\nIn contrast, some patients may want excellent distance vision and are willing to wear reading glasses some of the time. In that case, I may implant the Symfony OptiBlue in both eyes.\nPatients who need excellent near vision for up-close tasks are also happy with this mix-and-match strategy. That includes patients who are voracious readers, needlepoint makers, and sewers and knitters.\nConversely, I tend to avoid using this solution with patients who need excellent night vision, such as those who earn a living driving at night. Even though patients can become accustomed to halo and glare after a few months, I avoid using a multifocal IOL for them. In these patients, I might consider using nondiffractive designs that provide minimal nighttime halo and glare.\nCustom Lens Replacement\nBesides cataract patients, I mix and match the Symfony OptiBlue and Synergy in my custom lens replacement patients. Specifically, the strategy works well in patients who want freedom from glasses but aren’t suitable candidates for laser vision correction. These are hyperopic patients who are in their 40s or 50s and have decent distance vision but notice that it’s starting to fade, and they have very poor near vision without reading glasses. These patients have been very happy with this solution.\nTRIO OF TECHNOLOGIES\nThe TECNIS Symfony OptiBlue IOL is powered by InteliLight, a combination of 3 Johnson & Johnson Vision technologies: violet-light filter, echelette design, and achromatic technology. The technology was first introduced in the TECNIS Synergy IOL.\n- Violet-light Filter: Blocks the shortest wavelengths of light that produce the most light scatter, helping to mitigate halo, glare, and starbursts, and minimizing visual disturbances when driving at night\n- Echelette Design: Helps to reduce light scattering and halo intensity, making it easier to see digital devices\n- Achromatic Technology: Corrects chromatic aberration for better contrast day and night and superior performance across every distance\nSource: Johnson & Johnson Vision\nSteps for Success\nPrior to implanting lenses, my practice will perform a full tear film analysis with inflammatory markers. To ensure the patient has a clean macula, we perform a macular scan and a widefield Zeiss Clarus (Carl Zeiss Meditec) image on every workup.\nAlso, we perform topography and tomography to ensure that the astigmatism is regular. We use 2 different diagnostic devices to accurately determine the magnitude and meridian of the astigmatism. We avoid a mix-and-match solution with patients who do not have a regular astigmatism.\nFinally, we strive to ensure that the patient will be happy with our solution from a psychological perspective. If a new patient is complaining bitterly about his or her first eye that was done by another doctor, yet it looks fine, and the complaints are out of proportion to what we see in the clinical exam, we expect this may not be a suitable patient for a multifocal lens.\nToday, patients live in a near-vision world, relying constantly on digital devices, such as phones, tablets, and computers. As we care for cataract patients, we can restore their near vision, as well as provide excellent intermediate and distance vision. Combining the latest lens technologies provides a sound strategy for our cataract patients. ■","domain":"optical_engineering"}
{"url":"https://www.thegpsstore.com/Specials-Hot-Deals/Fujinon-Mariner-7x50WP-XL-Binoculars","date":"2024-04-14T17:39:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.19/warc/CC-MAIN-20240414161724-20240414191724-00112.warc.gz","language_score":0.92232745885849,"token_count":388,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__50200267","lang":"en","text":"Light Weight, High Quality Fujinon 7x50 Binocular!\nThe Fujinon mariner series 7x50 binoculars are a high performance, cost effective “extra set of eyes” perfect for marine use, bird watching, or just for fun. Built durable yet lightweight design, weighing in at just 1.8lbs., these binoculars offer a waterproof design with waterproof O-Ring seals to ensure full functionality in any weather condition. Rain or shine, the Fujinon Mariner series is the perfect visual solution.\nEvery pair of Fujinon mariner series 7x50 binoculars offer multi-coated optic lenses that ensure maximum light transmission as well as offering extra-long eye relief for those users wearing eyeglasses ensuring that your view is always the clearest. Easy focus features allow you to quickly adjust the clarity settings so seeing close range or further distances can be quickly accomplished by a few turns of the viewing lens. A 7x magnification zoom level brings your field of view closer than ever and offers a broad field of view range of 351 ft. at 1000 yards.\nIncluded with your mariner series binoculars is a one-piece rubber cap that will protect your lenses when the binoculars are not in use, however, can be easily removed when you need to view something quickly. Also included is a padded floating neckstrap that can be easily attached to your binoculars for when you need to keep them close to you and ready to go in a hurry. For excellent views far and near, the Fujinon Mariner Series 7x50 Binoculars are a perfect entry level option that won’t break the bank.\nCondition: Brand New\nWeight: 1.8 Lbs.\nSimilar Products and Value Bundles\n- ID#: 5579","domain":"optical_engineering"}
{"url":"https://androclue.com/a-detailed-guide-on-beam-splitters/","date":"2024-04-15T14:57:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817002.2/warc/CC-MAIN-20240415142720-20240415172720-00842.warc.gz","language_score":0.9258332848548889,"token_count":496,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__85034337","lang":"en","text":"An optical element that generates multiple output beams from a single input beam is referred to as a beam splitter. Let’s take a detailed guide on Beam Splitters.\nThe most basic of these types of elements is the plate beam splitter in which an input beam is split into two different beams. The two new beams are the transmitted and the reflected beams respectively and their directions are usually orthogonal to each other, although that will depend on the input beam’s angle of incidence. The input beam characteristics like beam size and divergence are retained in the two new beams.\nAnother type of beam splitter that is based on a different operating concept is the microlens array which consists of a series of small lenses, or lenslets, that share the same size and radius of curvature. An input beam is partitioned into many smaller beams that are brought to focus at the focal plane at each lenslet.\nAnother type of beam splitter that surpasses in versatility and efficacy both elements from above is the diffractive beam splitter. Unlike the previous beam splitter elements that work on the principle of light refraction, a diffractive beam splitter exploits the wave nature of light so the output transmission can be understood to be an interference effect.\nIn a diffractive beam splitter the input beam is turned into an array of multiple beams that can be arranged in any geometrical configuration. Each new beam shares the same characteristics of the input beam. Thus, the size and inherent divergence of the new beams is the same as the one from the input beam. Moreover, the angular orientation, or the spatial separation, among the new beams can be designed to any desired value.\nGiven all these remarkable features, a diffractive beam splitter finds applications in many industrial and academic fields. For instance, one of the extra beams generated by the beam splitter can be designed to be with very low power to be used for monitoring laser power in the system, avoiding having to measure power directly on the processing beam. Another totally different application can be found in aesthetic treatments in which a multi spot diffractive beam splitter generates a closely packed array of beams at the focal plane of a medical laser. Once on the patient’s skin, this irradiance pattern results on a larger area and, even more important, on a more efficient healing process. This stems from the presence of the gaps among the many spots that facilitate epidermal cell migration.","domain":"optical_engineering"}
{"url":"https://www.globaltscmgroup-usa.com/products/covert-lens-detetor/","date":"2024-02-21T05:29:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473370.18/warc/CC-MAIN-20240221034447-20240221064447-00230.warc.gz","language_score":0.909402072429657,"token_count":199,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__68589488","lang":"en","text":"The Stealth WEGA-i\nThe professional Covert Lens Detector\nThe Stealth WEGA-i is unique device which created for professionals in the sphere of the surveillance countermeasures. Thanks to its optical principle the WEGA can discover lenses of all types of covert cameras not depending on their working state.\nThe WEGA’s LED matrix radiates a powerful infrared beam which is then reflected by a video camera’s optics and is easily detected by the operator. The IR-filtering glass built into the WEGA helps the operator to avoid natural reflections from surfaces and concentrate on finding the exact location of a hidden camera.\n- Detects of all types of hidden video cameras regardless of their working status\n- Distance of detection between 2 and 10 meters\n- IR filter for rejection of natural reflections\n- Adjustable power of radiation\n- Powered by 2 AAA batteries\n- Battery discharge indicator\n- Durable Duralumin body\n- Size 140 x 34 x 16 mm","domain":"optical_engineering"}
{"url":"https://super8arena.com/canon-1218-auto-zoom-p-91.html","date":"2019-11-19T11:03:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670135.29/warc/CC-MAIN-20191119093744-20191119121744-00003.warc.gz","language_score":0.8794873356819153,"token_count":123,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__123270741","lang":"en","text":"Availability: Temporarily out of stock.\nA movie camera with fantastic 12 times zoom lens.\nThe fast f/1.8 lens of this movie camera has a 7.5 - 90mm zoom range and incredible 12 times magnification. It is almost the most powerful 8mm movie camera in the world, beaten by Bauer S 715 XL with its Angenieux lens. Other features include zoom range setting levers, powered zooming and filming, two speed control, automatic exposure control, SLR viewing and split image rangefinder, three filming speeds, removeable handgrip and manual aperture control.","domain":"optical_engineering"}
{"url":"https://www.attictrunk.com/fepedijdrtye.html","date":"2023-03-24T12:03:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945282.33/warc/CC-MAIN-20230324113500-20230324143500-00764.warc.gz","language_score":0.8826181292533875,"token_count":456,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__97817072","lang":"en","text":"Dimmable Performance LED JDR type 6W equivalent to 35W (watts), 12V AC (volt) flood bulb/lamp, GX5.3 bi-pin\nbase, with clear cover glass. Replacement for ceiling fish eye lighting fixtures, outdoor security lighting, track lighting, etc. Measures 2 inches\nacross reflector diameter. Save $96 on energy cost over lifetime of Performance LED bulb. Lighting Facts\nAverage bulb life 30,000 hours, estimated life at 3 hours per is 27.4 years. MR16 bulb shape, fully dimmable to 5%, 300 lumens, reflector similar to aluminum, no light leaks out the back, GX5.3 base, JDR type, MOL (length) 2-1/8\", diameter 2\", color temperature 3000K (soft white), beam angle 38. This bulb is up to 90% more efficient than incandescent or halogen, environmentally friendly (100% mercury free), solid state technology withstands shock and vibration, relatively cool running (less energy lost as heat), lights up instantly, immediate full brightness, no ultraviolet/no infrared - safe for artwork, capable of rapid cycling (unaffected by frequent on/off switching). Feit Electric high quality certified manufacturer. Manufacturer warranty 2 years.\nFeit Electric DIMMABLE PERFORMANCE LED Bulbs use ocular lenses to harness the output of high power Light Emitting Diodes (LEDs). The light output is comparable to incandescent and halogen products and can be used for both distance and close-range\ndirectional light. What makes these special is that they achieve their brightness with up to 78% less energy than the bulbs they replace, and they last up to 30,000 hours. They are RoHS compliant and 100% mercury free. Additional benefits include no UV or infrared emissions, relatively cool running performance, ability to withstand vibration (no filament), no warm-up\ntime or waiting to turn on and no detrimental effects from rapid cycling on and off. They can also be used in motion lights and photo cells. Replacement cross-reference:\nEXN/DM/LED, (replaces CFL bulb BPESLEXN) Only 5 left!","domain":"optical_engineering"}
{"url":"https://oiainternship.ntu.edu.tw/mentor/view/85B08ec6712E","date":"2023-12-10T17:31:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102612.80/warc/CC-MAIN-20231210155147-20231210185147-00520.warc.gz","language_score":0.8582380414009094,"token_count":160,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__136420664","lang":"en","text":"Liang specializes in machine vision and artificial intelligence, and has been devoted to the development of industrial automatic optical inspection (AOI) equipment for more than 20 years. Among his work, Liang leads the R&D team to develop various display panel automatic optical inspection equipment, semiconductor wafer automatic optical inspection equipment, high-precision micro-system metrology equipment.\nWORK EXPERIENCE AND AWARDS\nGallant Precision Machining, Taiwan\nDirector, Vision System (AOI, AI, Microsystem) Research and Development Division (2020 - present)\nDeputy Director, Vision System (AOI, AI) Research and Development Division (2013 - 2020)\nManager/Senior Engineer, Vision System (AOI) Research and Development Department (2003 - 2013)","domain":"optical_engineering"}
{"url":"http://www.blueshape.net/access_cyklops.asp?lng=","date":"2013-05-23T01:14:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368702718570/warc/CC-MAIN-20130516111158-00050-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8227576017379761,"token_count":276,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__44092718","lang":"en","text":"On-camera LED light\n|Lamp type:||Single LED module|\n|Colour temperature:||5600K & 3200K|\n|Light beam:||300 Lux ÷ 200 Lux (at 1mt)|\n28fc ÷ 19fc (at 3´)\n|Mount type:||Hot shoe Mount|\n|Power source:||9V to 30V|\n|Power consumption:||6W to 4W|\n|Weight:||540g including barndoors and filters|\nBlueshape CYKLOPS is an LED on-camera light.\nIt features an innovative single high-power LED, dimmable and capable of producing over 300 Lux.\nDesigned for broadcast camcorders - works from 9.0V to 30V.\nDimmable power: 300 Lux ÷ 200 Lux (28fc ÷ 19fc).\n5600K native colour temperature, adjustable with the included filter to 3200K.\n2-leaf barndoors are included to adjust the light beam.\n60° light angle.\nPower tap connector.\nSmall and light (540g, including barndoors and filters).\nVery low power consumption, 6W (high power) to 4W (low power).\nDouble-jointed bracket for optimal positioning.","domain":"optical_engineering"}
{"url":"http://www.patentsencyclopedia.com/app/20110310503","date":"2018-06-24T17:46:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267866984.71/warc/CC-MAIN-20180624160817-20180624180817-00209.warc.gz","language_score":0.9258677363395691,"token_count":3548,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__173509596","lang":"en","text":"Patent application title: MIRROR ASSEMBLY FOR VEHICLES AND VEHICLE HAVING SAID MIRROR ASSEMBLY\nHeinrich Lang (Ergersheim, DE)\nIPC8 Class: AG02B510FI\nClass name: Mirror plural mirrors or reflecting surfaces including adjacent plane and curved mirrors\nPublication date: 2011-12-22\nPatent application number: 20110310503\nThe invention relates to a mirror assembly for vehicles comprising a\nplurality of glass units (24, 32, 12, 14, 20, 22), spatially separated\nfrom one another, wherein one glass unit (24, 32) comprises mirror glass\n(30, 34) and a frame (28, 36) surrounding said mirror glass (30, 34) and\none of the glass units (24, 32) has a permanent visual marking (38, 40).\n1. A mirror assembly for vehicles comprising a plurality of spatially\nseparate glass units, wherein: the glass units each consist of a mirror\nglass and a frame surrounding said mirror glass, at least one of said\nglass units is provided with a permanent visual marking, and said\npermanent visual marking consists of color markings of the frame of the\nrespective glass unit.\n2. The mirror assembly according to claim 1, characterized in that one of said glass units comprises a mirror glass having a field of view of a main mirror according to Class II or III of Directive 2003/97/EC of the European Parliament and of the Council of Nov. 10, 2003, and in that this main mirror glass unit is provided with said permanent visual marking.\n3. The mirror assembly according to claim 2, characterized in that another glass unit comprises a mirror glass having a field of view of a wide-angle mirror according to Class IV of Directive 2003/97/EC of the European Parliament and of the Council of Nov. 10, 2003.\n4. The mirror assembly according to claim 1, characterized in that said permanent visual marking is the color tone of the respective mirror glass.\n5. The mirror assembly according to claim 4, characterized in that said color tone is a blue tone.\n6. The mirror assembly according to claim 1, characterized in that said permanent visual marking consists in the degree of reflectivity of the respective mirror glass.\n7. The mirror assembly according to claim 6, characterized in that the degree of reflectivity of the mirror glass of a main mirror according to Class II or III at nocturnal lighting is at least 10% less than the degree of reflectivity of the other mirror glasses.\n8. The mirror assembly according to claim 1, characterized in that the mirror assembly comprises a housing having the glass units disposed therein, and in that the permanent visual marking is realized by the frame of one glass unit having a different color than the housing of the mirror assembly.\n9. The mirror assembly according to claim 1, characterized in that at least one glass unit having a visual marking together with at least one further glass unit not having a visual marking form a common part of a mirror system which is provided with a common mount for fastening to the vehicle.\n10. The mirror assembly according to claim 1, further comprising said vehicle.\n11. The mirror assembly according to claim 2, further comprising said vehicle.\n12. The mirror assembly according to claim 3, further comprising said vehicle.\n The present invention relates to a mirror assembly for vehicles in\naccordance with the preamble of claim 1 and a vehicle according to claim\n11 having said mirror assembly.\n In recent years, utility vehicles are being equipped with a steadily increasing number of rear-view mirrors allowing the driver to view areas located behind him as well as dead-angle areas. Particularly in the case of utility vehicles with a trailer and when approaching ramps or backing up, for example, it is necessary for the driver to obtain a view as comprehensive as possible of the areas to the left and right of the vehicle. While maneuvering in narrow spaces, the driver's viewing direction keeps changing back and forth, i.e., the driver checks the vehicle by alternatingly looking at left and right external mirrors. Here the eye always requires a certain time span for \"locating\" a particular mirror from among a plurality of mirrors that are arranged, e.g., adjacent to each other or on different sides of the vehicle. Such locating of the momentarily needed mirror may moreover be rendered difficult if the areas that are open to view through the individual mirrors present different degrees of brightness. Depending on personal habit, this will result in the driver preferably looking into the brighter, darker, upper, lower, more convexly curved or less convexly curved mirror. In a situation where the individual mirrors image similar objects or identical objects from slightly different perspectives, e.g., when starting from one of several identical ramps, the driver may moreover easily let himself be guided by a \"wrong mirror\" (or mirror image). Presumably the most critical situation does, however, come about in a driving situation in which the glance will shift rather less frequently between several mirrors, so that the \"training effect of capturing\" the correct mirror as well as accommodation to the area shown therein will come about less rapidly than would be the case during \"normal\" running such as, e.g., on a highway. For example, there exists a risk of the eye--which usually only observes the left external mirror during forward running--will take too long for singling out the correct one from among several right-hand external mirrors in order to complete a passing maneuver.\n From EP 1 253 573 A2 a warning apparatus in automotive vehicles is known whereby upon occurrence of a danger situation the driver's glance is directed to the appropriate mirror as that the mirror is associated to a sensor of the vehicle which detects, e.g., a rearward distance of the automotive vehicle from an obstacle, and the mirror is marked, for example by driving a lighting means (e.g., an LED) affixed to it or integrated into it, as soon as this distance becomes smaller than a predetermined distance.\n It is a drawback in the warning apparatus proposed in EP 1 253 573 A2 that its effect, which consists in directing the driver's glance to the appropriate mirror, will manifest upon occurrence of a danger situation only and exclusively, for instance when a distance becomes smaller than a minimum distance (while being cancelled again after the danger situation has been resolved), i.e., depending on the situation but not as a general rule.\n Further mirror assemblies that are particularly suited for the use of the present invention are known from DE 102007013028 A1, DE 10036875 A1, DE 7702748 U1, DE 7815094 U1, and DE 19627 417 01.\n Starting out from EP 1 253 573 A2 it is therefore the object of the present invention to specify a mirror assembly which enhances the running and traffic safety permanently and independently of a situation. Moreover it is an object of the present invention to specify a vehicle having said mirror assembly.\n This object is achieved through the features of claims 1 and 11, respectively.\n Due to the permanent visual marking of one of a plurality of glass units in a mirror assembly, the driver's attention is directed to this marked mirror. This results in a shortened perceptional time span. What is being referred to as a perceptional time span in this context is the time interval from the decision to monitor the traffic space with the aid of the mirror assembly up to the recognition of the relevant dangers in the one respective mirror most appropriate for that situation. Enhanced safety is thus achieved in a simple manner and without any additional sensors and electronics. Humans very quickly learn to subconsciously establish contexts from visual impressions. As a result, even after a few glances into the mirrors, the allocation of a viewing direction to a mirror presenting the associated viewing area is stored automatically, together with the visual impression of the mirror itself As soon as the driver subconsciously recalls an advantageous field of view based on the given running situation, he will immediately look into the correct mirror. The swiftness required for selecting the mirror that is advantageous for the respective running situation is hereby increased. Advantageously, the mirror assembly of the invention presents visual discernibility between a main mirror and a wide-angle mirror, to thus enable faster focusing of the eye on the mirror that is desired in the respective situation.\n Due to the advantageous aspect of the invention according to claim 2, the main mirror is provided with the permanent visual marking. As it will be mandatory in most cases to check the field of view of the main mirror when looking into the rear-view mirror of a vehicle (field of view according to Group H or III of Guideline 2003/97/EC of the European Parliament and the Council of Oct. 10, 2003), the perceptional time span is shortened in particular, for the attention is directed to the main mirror from the very beginning by the permanent visual marking.\n According to an aspect according to claim 4, the permanent visual marking consists in the mirror glass of the main mirror having a color tone different from the mirror glass of the additional mirror(s). Due to this choice the viewed mirror images reproduce different color impressions, which results in facilitated association of a color impression to a field of view.\n An advantageous choice for different color tones for the mirror consists in the combination of a mirror glass in a traditional realization, e.g. as a chrome-plated mirror, and the realization of the other mirror glass as a blue mirror, as is known, e.g., from DE 20 2006 015 876 A1 (Claim 5).\n According to another advantageous realization of the invention according to claim 6, the permanent visual marking is realized through different degrees of reflectivity of the various glass units. In addition the different degree of brightness constitutes another advantage which is particularly important in the twilight hours and at night, when good view is especially important. Selecting a darker main mirror and a more highly reflective wide-angle mirror in this combination provides the following advantages: Vehicles approaching from afar which are therefore observed with the aid of the main mirror present less glare to the driver than in a normal case. The closer surroundings, on the other hand, may be observed at normal intensity, which is even accentuated more strongly by the difference from the main mirror. Due to the clearly more pronounced curvature of the wide-angle mirror, on the other hand, glare is at any rate clearly reduced in comparison with the main mirror.\n The difference in the degree of reflectivity between main mirror and wide-angle mirror is preferably at least 10%--Claim 7.\n The permanent visual marking may be realized in a particularly simple manner in the form of a color marking--Claim 8. In this case the individual mirrors themselves or the frame of the respective mirror may be provided with a permanent color marking. A color marking is easy to apply and may be designed in a visually conspicuous manner, resulting in a high attention value.\n As may be seen from FIG. 1, it is advantageous particularly for mirrors arranged in close proximity of each other, for example a main mirror and another mirror, to provide a marking of only one glass unit. In the case of utility vehicles, the second mirror generally is the wide-angle mirror, as is represented in FIG. 1. Likewise, in the case of bus mirrors (not shown), for instance, combinations of the main mirror with a mirror for observing the boarding area are customary.\n The remaining subclaims relate to further advantageous aspects of the invention. Additional details, features and advantages of the present invention become evident from the following description of preferred embodiments while making reference to the appended drawings, wherein:\n FIG. 1 is a schematic representation of the view from the driver's cabin of a truck onto a mirror assembly in accordance with a first embodiment of the present invention;\n FIG. 2 is a representation in analogy with FIG. 1 of a second embodiment of the present invention; and\n FIG. 3 is a sectional view of the glass unit of the main mirror.\n FIG. 1 schematically shows the view from the driver's cabin of a truck 2, obliquely to the front right through a windshield 4 and a right side window 6, onto a mirror assembly 10 including a plurality of mirrors. The mirror assembly 10 comprises a main mirror 12 and a wide-angle mirror 14 disposed below the latter. The mirrors 12, 14 are fastened to a right side of the vehicle 2 through the intermediary of respective suitable mirror arms 16 and 18. A front mirror 20 protrudes from above into the driver's field of view. With the aid of the front mirror 20, the driver can observe the area immediately in front of the vehicle 2. On the right vehicle side a ramp mirror 22 projects from above and is visible to the driver through the right side window. With the aid of the ramp mirror 22 the driver can observe the area immediately to the right beside the vehicle 2.\n In accordance with the representation in FIG. 1, the main mirror 12 comprises a glass unit 24 which is disposed inside a mirror housing 26. The glass unit 24 in turn comprises a frame 28 having a mirror glass 30 fixed therein. In the top view of the mirror glass 30, the frame 28 is visible on the edge of the mirror glass 30. The wide-angle mirror 14 equally comprises a glass unit 32 having a mirror glass 34 which is fixed in a frame 36 in an analogous manner.\n In the embodiment according to FIG. 1, the mirror glass 30 of the main mirror 12 presents a blue tone whereby it is visually differentiated from the wide-angle mirror 14 and whereby the permanent visual marking is realized. In FIG. 1 this blue tone is represented by a cross-hatching 38 of the mirror glass 30. In contrast, the mirror glass 34 of the wide-angle mirror 14 is a chrome-plated mirror presenting a rather color-neutral impression. Likewise, the mirror glasses of front mirror 20 and ramp mirror 22 are realized in a color-neutral design. Due to this conspicuous difference between the main mirror 12 and the additional mirrors 14, 20, 22 of the mirror assembly 10, the driver's attention is first of all directed to the main mirror 12, i.e., to the mirror having the field of view that will be needed most often.\n In addition, or alternatively, the permanent visual marking may also be realized by the degree of reflectivity of the mirror glass 30 of the main mirror 12 being lower than the degree of reflectivity of the mirror glass 34 of the wide-angle mirror 14--not represented. The different degree of brightness constitutes another advantage which is particularly important in the twilight hours and at night, when good view is especially important. Selecting a darker main mirror glass 30 and a more highly reflective wide-angle mirror glass 34 in this combination provides the following advantages: Vehicles approaching from afar which are therefore observed with the aid of the main mirror 12 present less glare to the driver than in a normal case. The closer surroundings, on the other hand, may be observed at normal intensity, which is even accentuated more strongly by the difference from the main mirror 12. Due to the clearly more pronounced curvature of the wide-angle mirror 14, on the other hand, glare is at any rate clearly reduced in comparison with the main mirror.\n FIG. 2 schematically shows an alternative aspect of the invention which only differs from the embodiment of FIG. 1 in that the visually permanent marking is realized through the color of the frame 28 of the main mirror 12, which is differentiated from the color of the housing 26 having the customary black coloring and the frame 36 of the wide-angle mirror by a high color contrast. For example, the frame 28 may be colored in a bright red or orange color. This is represented by a hatching 40. The visually permanent different coloring 40 of the frame 28 of the main mirror 12 equally serves to direct the driver's attention first of all to the main mirror 12.\n Alternatively, the visually permanent marking may also be realized through single color spots or illuminated fields (not represented).\n Although the present invention has been disclosed with a view to the preferred embodiments so as to enable enhanced comprehension of the latter, it should be noted that the invention may be realized in different ways without departing from the scope of the invention. Accordingly, the invention should be understood to encompass any possible embodiments and aspects for the shown embodiments that may be realized, without departing from the scope of the invention as set forth in the appended claims.\nLIST OF REFERENCE NUMERALS\n 2 vehicle, truck  4 windshield  6 right side window  10 mirror assembly  12 main mirror  14 wide-angle mirror  16 upper retaining arm  18 lower retaining arm  20 front mirror  22 ramp mirror  24 glass unit of the main mirror  26 mirror housing of the main mirror  28 frame of the main mirror  30 mirror glass of the main mirror  32 glass unit of the wide-angle mirror  34 mirror glass of the wide-angle mirror  36 frame of the wide-angle mirror  38 visually permanent marking, blue tone, cross-hatching  40 visually permanent marking, frame color, hatching\nPatent applications by Heinrich Lang, Ergersheim DE\nPatent applications in class Including adjacent plane and curved mirrors\nPatent applications in all subclasses Including adjacent plane and curved mirrors","domain":"optical_engineering"}
{"url":"https://tigerowner.com/UVlamps.htm","date":"2022-06-25T10:09:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103034930.3/warc/CC-MAIN-20220625095705-20220625125705-00181.warc.gz","language_score":0.9433063864707947,"token_count":1410,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__286221469","lang":"en","text":"Ultraviolet Lamps - A Mineral Collector's Primer:\nINTRODUCTORY NOTE: UV lights are not toys! They are fun, and attractive and intriguing to kids, but they can also be dangerous - please read my separate caution note here before purchasing or using a UV lamp with or for kids....\nFirst, what’s the difference between a fluorescent light and an ultraviolet light?\nThis is confusing, because a lot of folks use the terms interchangeably. Typically a fluorescent light produces white light, and they are very commonly used in offices, schools and many homes as the primary artificial light source. Ultraviolet lights produce ultraviolet rays, and are used in germicidal applications, tanning salons, and to cause other objects (like posters) to glow (fluoresce). The confusion comes from the fact that fluorescent lights use ultraviolet raysinternally to cause their phosphor coatings to produce white light externally, while ultraviolet lights produce ultraviolet rays externally to produce effects which white light doesn’t (like suntanning, or killing germs, or causing fluorescent objects to fluoresce).\nOK, so what is ultraviolet light (UV)?\nScientists use a model of light that characterizes it by its wavelength; for example, the wavelength of red light is about 650 nanometers. Violet light has a shorter wavelength, about 400 nanometers. However, visible light is only a small part of the electromagnetic spectrum. Wavelengths just longer than red are called infrared (and invisible to humans), while light below the wavelength of violet light is called ultraviolet (also invisible to humans). Longwave UV (UVA) peaks at about 360 nanometers, while shortwave UV (UVC) peaks at about 254 nanometers. Midwave UV (UVB) is generally considered to peak at about 312 nanometers.\nWhat is the difference between longwave and shortwave UV lamps?\nTrue longwave UV lamps produce mostly longwave UV light; they have a special filter which screens out most (but not all) visible light. \"Blacklights\" are an inexpensive way of producing longwave UV; they too have a visible light filter, but it is much less effective than that on a true longwave UV lamp. For most hobby and fluorescent display applications, \"blacklights\" will work, they just cast a blue cast on everything, which is not fluorescence but reflection. Longwave UV light is present in sunlight, and is generally not considered harmful to humans.\nShortwave UV lamps come in two types – filtered and unfiltered. Unfiltered shortwave lamps invariably produce a lot of visible light in addition to the shortwave UV light; they are fine for germicidal applications, but are largely useless in examining or displaying fluorescent objects – the visible light produced simply drowns out any fluorescence produced. Filtered shortwave lamps use a very expensive filter which allows shortwave UV through, but filters out almost all visible light; they are the ones which are used by scientists or hobbyists observing fluorescent minerals. Midwave UV lamps use the same filter as shortwave lamps, but use a special phosphor inside (or outside) the tube to produce mostly midwave UV light. Although both midwave and shortwave UV are produced by the sun, our Earth’s atmosphere filters out virtually all of the shortwave UV, and most of the midwave UV as well. This is a good thing for us, because long-term exposure to midwave and/or shortwave UV light is suspected to cause skin cancer and cataracts. For protection, you should always wear safety glasses (which block UV) when using shortwave or midwave UV lamps. Limiting skin exposure is also essential - I have personally received a bad \"sunburn\" on the back of my hand from < 5 min. of sporadic exposure to a powerful shortwave lamp while simply moving specimens around in a display....\nWhat kind of lamp do I need for fluorescent mineral collecting?\nThe good news: for beginning hobbyists, an inexpensive \"blacklight\" is a good way to get started; they are widely available, fun, and will work fine for minerals which fluoresce brightly when exposed to longwave UV. Small inexpensive (~$10) battery-powered \"blacklights\" are available for field collecting. Recently a new product has come onto the scene: the Convoy S2 365nm flashlight. This device is an LED battery-powered longwave flashlight which will project a very bright beam of filtered longwave UV - while not particularly useful for a display (because of the narrowly focused beam), it is an amazing tool for collecting, and for differentiating between fluorescent and non-fluorescent specimens - I have seen it advertised for as little as ~$30... One caveat - this beam is so powerful that it is dangerous to point it at people - any young rockhound's use of it should be supervised...\nThe bad news: most minerals don’t fluoresce at all, and of those that do, only a relatively small percentage are really bright under longwave UV. In order to see all the bright colors which make fluorescent minerals so attractive, eventually you may want to buy a good shortwave UV lamp. These are generally much more expensive than longwave UV lamps, and also should be used with care – protective eyewear should always be worn. A good battery-powered shortwave UV field lamp will cost $2-300+, and higher-powered display lamps start at $400 or so, and can run to $1500 or more (!). Midwave lamps are usually purchased only by advanced hobbyists, and are at least as expensive as shortwave UV lamps.\nThe power (wattage) of the lamp determines both how far from the lamp you can see fluorescent effects, and how brightly the minerals will fluoresce. The amount of UV radiation reaching the illumination target is inversely proportional to the square of the distance from the lamp - in other words, you want the lamp as close as possible to the rocks you are trying to light up! So if you are examining rocks in your (gloved) hand, a low-powered shortwave lamp might be fine. If you are setting up a display, the power you will need is determined by the area you want to view - I've found that a 36-watt lamp will adequately light up an area of about 2 feet by 3 feet, as long as the display area is protected from ambient light. And for field collecting, I use a WTC 9-watt lamp - on a dark night, bright-fluorescing minerals can be seen easily as you walk around with the lamp waist-high. Hope that helps, but the subject is complex, and the lamps are expensive - so if you have specific questions, send me an email....Back to Links Page","domain":"optical_engineering"}
{"url":"https://www.hnttools.com/product/dewalt-3-beam-red-laser-pointer/","date":"2023-09-26T00:25:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510100.47/warc/CC-MAIN-20230925215547-20230926005547-00858.warc.gz","language_score":0.7779907584190369,"token_count":161,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__213744784","lang":"en","text":"DeWalt 3 Beam Red Laser Pointer\n- Self-Leveling Point Laser with accuracy of +/-1/4″ at 100 ft.\n- Single Lever Power Switch locks the pendulum in the off position ensuring greater durability\n- Built-in Magnetic Pivoting Bracket for easy mounting on metal surfaces\n- Integrated Track Clearance provides fast, accurate bottom and top track installation\n- Overmolded Housing maintains calibration under job site conditions\n- Focused Laser Beam improves accuracy and visibility by keeping dot size small over longer distances\n- Accuracy per 100 ft.: 1/4″\n- Power supply: 4 AA alkaline batteries\n- Indoor visibility range: 100 ft.\n- Laser class: 2 (<1.5mW) at 635nm","domain":"optical_engineering"}
{"url":"https://baleyo.com/shop/gm-07-micropack-gm-07-rgb-professional-gaming-mouse-39765","date":"2023-06-08T11:42:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654871.97/warc/CC-MAIN-20230608103815-20230608133815-00231.warc.gz","language_score":0.6845492720603943,"token_count":236,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__161169218","lang":"en","text":"1-PROFESSIONAL GAMING OPTICAL SENSOR WITH PRECISE TRACKING: Pixart 3327\nHigh sensitivity optical sensor to improve tracking accuracy\n2-1600-3200-6000-12000 DPI ( DPI SWITCH)\nAdjustable resolution from 1600-3200-6000-12000 DPI\nNumbers of buttons: 7 (left key, right key, scroll, DPI +，DPI -, forward, backward)\n4-10 MILLIONS KEY LIFE\nRated over 10 million clicks, ensure reliable durability.\n5-PROFESSIONAL GAMING BRAIDED CABLE\nMore reliable durability.\n6-11 MODES LIGHT EFFECT\nCool shape with 11 different modes light effect\n7-WITH MACRO FUNCTION & CUSTOMIZED SOFTWARE\nIt is perfect for playing games with the macro function and customized software that can be adjusted to your preferences.\n|Country of Origin||Singapore|","domain":"optical_engineering"}
{"url":"https://www.alltop-elec.com/alltop-lighting-system-design-concept/","date":"2021-10-16T11:43:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323584567.81/warc/CC-MAIN-20211016105157-20211016135157-00117.warc.gz","language_score":0.889813244342804,"token_count":516,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__196841778","lang":"en","text":"ALLTOP lighting design follows the principles of green, environmental protection and energy saving lighting:\nProtecting the environment, including reducing pollutant emissions during the life cycle of lighting fixtures, using clean light sources, natural light sources and green materials to control light pollution.\nEnergy conservation, high-efficiency electric light source can significantly reduce the energy consumption of cooling lamps to emit heat.\nGood health, providing a comfortable, pleasant and safe high-quality lighting environment.\nCreate a light culture that reflects modern civilization. Adopting high-efficiency energy-saving solar lighting products, we must first select high-efficiency and high-quality light source. The high-quality light source is embodied in the following four points: The light emitted by the light source is the full-color light. The spectral composition of the light should be free of ultraviolet light and infrared light. The color temperature should be close to natural light. The lighting is no-frequency flash, so that the green solar street lighting is in place. On the basis of good light source quality, and matching with high-quality lighting technology, both are indispensable. The integration of solar street lighting technology is reflected in: glare small illumination High illumination distribution uniform lighting control: The most basic function of lighting control is to control the lighting of lighting appliances, suitable for scientific lighting control, to create an environment atmosphere, save energy, easy to use, effective anti-theft, PIR Sensor, intelligent light control High-tech functions such as smart cameras.\nThe area lighting control adopts the method of light control and time control, infrared combination control, and adopts modular intelligent control system in landscape lighting to meet the creation of various atmospheres. The overall function lighting of the area adopts the combination of light control and time control. When it is sunny, it is controlled by time control mode and rainy day in light control mode to meet the basic function lighting requirements, and at the same time it can control the switch lights well. Time, saving energy. The area lighting control is divided into three modes from the use state: weekday mode, weekend mode, holiday mode. Weekday: Open all functional lighting in the zone to ensure pedestrian safety, and open the landscape lighting of the commercial entertainment zone and the tourism cultural zone. Weekend: Open all functional lighting, commercial entertainment area, tourism and cultural area, and ecological living area leisure and entertainment venue landscape lighting Festival: Open all functional lighting and landscape lighting in the area. Includes performance lighting for tall buildings. Commercial shopping plaza architectural lighting design, landscape garden lighting section.","domain":"optical_engineering"}
{"url":"http://www.worldcarfans.com/10802132307/ferrari-binoculars-and-telescopes","date":"2015-08-02T06:20:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-32/segments/1438042989018.40/warc/CC-MAIN-20150728002309-00146-ip-10-236-191-2.ec2.internal.warc.gz","language_score":0.8883843421936035,"token_count":447,"dump":"CC-MAIN-2015-32","global_id":"webtext-fineweb__CC-MAIN-2015-32__0__182055782","lang":"en","text":"SEE EVEN THE FASTEST FERRARI!\nFerraris, be they on the road or the race track, can move at such a speed that it can be quite difficult to keep an eye on them so Ferrari has joined forces with one of the world’s leading optical companies, William Optics, to produce an innovative and high performance Ferrari range of binoculars and telescopes.\nThe Ferrari Visio binoculars are light, high performance and boast cutting edge technology. With eight times magnification, they are powerful, while phase coating of the lens ensures accurate colour representation and yet they weigh just 305 grams. Outside, they are powered-coated in Ferrari red with carbon fibre highlights and the Ferrari logo. They are provided with a stylish Cordura storage pouch and arrive in a Ferrari presentation box, making them an ideal present.\nThe Ferrari ZenithStar Telescope will, with its 25 to 50 times Zoom Magnification, can pull in even faster, more distant Ferraris, not to mention the occasional extra-terrestrial object! It may be used, with its supplied prism magnifier as a telescope, or, with the adaptor as a camera zoom lens, making it an ideal race track partner. With optional prism magnifiers, it can be converted to a 130 times Zoom telescope. Like the Ferrari Visio binoculars it is powered painted in Ferrari red and carries the Ferrari logo. It is supplied with a red hard case backpack for easy transportation.\nTopping the range is the telescope created to mark Ferrari’s 60th Anniversary, the Ferrari ZenithStar Anniversary Edition. Even more powerful, it offers a 20 to 65 times zoom magnification, while with the adaptor, it becomes a highly powerful 430 mm/ F6.2 camera lens. Finished in black carbon fibre, it weights just two kilos, and carries the Ferrari 60th Anniversary logo. Like the normal Zenith Star, it has a prism magnifier for telescope use and hard case backpack for transport.\nFull details of the Ferrari range of binoculars and telescopes are available on http://www.williamopticsracing.com and they may be ordered from the web site or via Ferrari dealers.","domain":"optical_engineering"}
{"url":"http://niafiber.com/sale-8484418-24-port-fiber-optic-patch-panel-1u-19-inch-sc-lc-connector-drawer-with-guild-rail.html","date":"2021-04-15T17:29:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038087714.38/warc/CC-MAIN-20210415160727-20210415190727-00445.warc.gz","language_score":0.726800799369812,"token_count":428,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__37966155","lang":"en","text":"Payment & Shipping Terms:\n|Application:||Optical Distribution Frame ( ODF)||ODF Type:||Rack Mounted &Drawer With Guild Rail|\n|Material:||Galvanized Steel Sheet Or Cold Rolled Steel Sheet Or Aluminium Sheet||Connector Type:||LC/FC/SC,simplex, Duplex Etc|\n24 port Fiber Optic Patch Panel 1U 19 inch SC / LC Connector Drawer With Guild Rail\nFiber Optic FTTH Box:The terminal box realize the connection between the fiber optical cable and the pigtail, and protect the fiber optic spice. It suits for all the fiber optic cable with its diamater within Φ16 to 22 mm. It apply for indoor. Outdoor, CATV system, etc\n1. 19\" standard size , easy install\n2. Light weight, strong strength, good anti-shocking and dustproof\n3. Well cable management, cable can be distinguished easily\n4. Roomy space ensure fiber bent ratio\n5. Adapter fence can be installed or uninstalled\n6. Drawer with guild rail\n3.LAN & WAN\n3. Product Show:\n4. Fiber Optic Patch Panel Specification:\nPort Nos.: 24\nWorking Temperture: -45--+80 deg\n1. Can I get some samples of this optical fiber receiver?\nYes, Sample order is available for quality check and market test .And you just to pay the cost and freight.\n2. What’s delivery time of ftth node?\nIt usually takes about 3-7 working days .\n3. What’s your payment terms ?\nWe usually accept all these kinds of payment terms .Such as T/T,L/C, Western Union.Cash Etc.\n4. What’s your warranty terms ?\nWe offer 12 months warranty time .\n5. Could you give us help on the CATV solution?\nOK, it is our pleasure to help you.\n6. What is your MOQ?\nOne is OK.","domain":"optical_engineering"}
{"url":"https://www.pizzamarketplace.com/news/panasonic-unveils-next-gen-surveillance-camera-platform/","date":"2017-10-17T20:26:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187822488.34/warc/CC-MAIN-20171017200905-20171017220905-00485.warc.gz","language_score":0.9079115986824036,"token_count":242,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__294490295","lang":"en","text":"Panasonic unveils next-gen surveillance camera platform\nPanasonic has announced the availability of its new 3 Series camera platform. Built on the same UniPhier LSI platform as its flagship 6 Series camera line, 3 Series cameras provide high-definition capabilities with an objective of keeping customers and employees safe, reducing shrinkage and monitoring employee compliance.\nAccording to a news release, the new 3 Series cameras deliver video images in 720p resolution and an up to 133dB of dynamic range thanks to its Enhanced Super Dynamic and Adaptive Black Stretch technologies, which enhances images in low-lighting conditions. The 3 Series cameras produce high definition resolution at 60 frames per second and feature the ability to encode up to four simultaneous H.264 streams while maintaining use of bandwidth via the UniPhier’s Shadow Compression Engine.\nThe new 3 Series models also feature an SDXC memory card slot offering high-capacity H.264/JPEG edge-recording with flexible record modes including alarm-recording and backup-recording in the event of network failure.\nAdditional 3 Series camera models and optional accessories are also slated for introduction throughout 2014, the company said.\nCompanies: Panasonic Professional Display Company","domain":"optical_engineering"}
{"url":"http://www.advancedsupplies.co.uk/products/machinery/strobes/hand-held/led-9/","date":"2022-05-25T22:56:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662594414.79/warc/CC-MAIN-20220525213545-20220526003545-00495.warc.gz","language_score":0.8569725155830383,"token_count":448,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__87529151","lang":"en","text":"The Unilux LED-9 is the brightest in its class.\nAs an inspection light, the LED-9 stands above any light of its size with its brighter and more concentrated beam. The LED-9’s flash frequency is easily adjusted to match any line speed, allowing you to diagnose the smallest flaw. Also available in fixed mount and handheld models, with spot and flood options.\n- Flood: 1430 LUX at 600 mm (24 inches) distance from the object.\n- Spot: 3120 LUX at 600 mm (24 inches) distance from the object.\n- Boasts the brightest and most concentrated uniform illumination.\n- Available in both handheld or fixed-mount options.\n- Choose from flood and spot options.\n- Features an adjustable flash rate and duration that syncs perfectly with your line or machine.\n- Includes a constant-on for work light.\n- Handheld version features:\n- Lightweight construction –weighs only 1.1 kg (2.4 lbs).\n- Can be used for up to 4 hours continuously.\n- Can be fully charged up in just 30 minutes.\n- Fixed Mount version features:\n- A compact and lightweight construction.\n- The facility to interconnect multiple units.\n- A rotary encoder to facilitate greater precision.\n- The use of long-life LEDs make the LED-9 a virtually maintenance-free product.\n- Boasts a high quality and ultra-durable construction.\n- Efficient design ensures energy consumption is reduced.\nThe Unilux LED-9 can be used for:\n- High-speed printing applications, including the inspection of registration and print quality, measurement of speed, machine vision and the confirmation of form alignment.\n- Converting applications, including the analysis of trimmed edges and perforation and the surface inspection of coatings and adhesives.\n- Maintenance work, including the detection of slippage in belts and webs, high-speed motion timing, measurement of motor speed, the troubleshooting of shafts, gears, and pulleys\n- Operation in textile and tin mills.","domain":"optical_engineering"}
{"url":"http://www.fruugo.it/bolle-quasar-otg-ski-goggles-vermillon-gun-lens-racing-snake-frame/p-1500589","date":"2013-05-18T18:32:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696382705/warc/CC-MAIN-20130516092622-00021-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8660547733306885,"token_count":292,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__195879999","lang":"en","text":"Bolle Quasar OTG Ski Goggles Vermillon Gun Lens Racing Snake Frame Bolle Quasar Over The Glasses OTG Ski Goggles are designed to be worn over prescription glasses and have indents in the side of the frame to relieve any pressure on the face when wearing glasses under the goggle. These goggles allow glasses-wearing skiers to enjoy the slopes practically and in comfort. Quasar OTG lenses guarantee 100 protection against harmful UVA/UVB rays ensuring excellent eye protection and performance in harsh conditions. Flow Tech Venting technology reduces fogging and optimises airflow over the inside of the lens. Bolle Quasar OTG Goggles offer a comfortable fit when worn over glasses. Non-glasses wearers can also use this goggle, as the foam indent will not impact upon the efficiency of the product. Quasar OTG is supplied with a soft carry wallet suitable for lens cleaning and a 2-year manufacturers warranty for peace of mind. Bolle Quasar OTG goggles offer high performance with a fantastic fit. Their large spherical lens gives an exceptional range of peripheral vision, and Flow Tech venting optimizes the flow of air over the inside of the lens to reduce fogging. The triple layer face foam has an ultra soft micro-fleece next to the face and two layers of density foam for a firm soft fit, while the swinging strap outrigger maintains a perfect fit with a helmet.","domain":"optical_engineering"}
{"url":"https://symposium.technainstitute.com/deepfall-non-invasive-fall-detection-with-unsupervised-deep-learning/","date":"2023-12-05T05:17:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100545.7/warc/CC-MAIN-20231205041842-20231205071842-00183.warc.gz","language_score":0.9028511047363281,"token_count":234,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__116981028","lang":"en","text":"Jacob Nogas 1, Shehroz S. Khan 2, Alex Mihailidis 1,2\n1 University of Toronto, Canada\n2 Toronto Rehabilitation Institute, Canada\nHuman falls rarely occur; however, detecting falls is very important from the health and safety perspective. Due to the rarity of falls, it is difficult to employ supervised classification techniques to detect them. Moreover, in these highly skewed situations it is also difficult to extract domain specific features to identify falls. In this abstract, we present a novel framework, DeepFall, which formulates the fall detection problem as an anomaly detection problem. The DeepFall framework presents the novel use of unsupervised deep spatio-temporal convolutional autoencoders to learn spatial and temporal features from normal activities using non-invasive sensing modalities. We also present a new anomaly scoring method that combines the reconstruction score of frames across a temporal window to detect unseen falls. We tested the DeepFall framework on three publicly available datasets collected through non-invasive sensing modalities, thermal camera and depth cameras and show superior results in comparison to traditional autoencoder methods to identify unseen falls.","domain":"optical_engineering"}
{"url":"https://blogmags.co.uk/clear-insight-the-advantages-and-applications-of-sight-glass","date":"2023-12-05T05:27:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100545.7/warc/CC-MAIN-20231205041842-20231205071842-00345.warc.gz","language_score":0.9249992370605469,"token_count":1168,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__238717488","lang":"en","text":"Sight Glass: Transparent Inspection Windows for Industrial and Commercial Processes\nSight glass is a transparent window commonly used in industrial and commercial applications to allow for visual inspection of the contents of a vessel or process. It is typically made of soda lime glass, an extremely common kind of glass due to its affordability, durability, and resistance to thermal shock.\nSoda-lime glass is made by melting silica, soda ash, and limestone at high temperatures. The resulting glass is relatively soft and can be easily shaped and formed into various shapes and sizes.\nInsight into the Uses of Sight Glass in Industrial and Commercial Applications\nSight glass is used in a variety of industries for a range of applications. In the chemical processing industry, sight glass monitors the flow of chemicals and reactions. Sight glass is commonly used in chemical reactors, distillation columns, and storage tanks.\nSight glass is also used in HVAC (Heating, Ventilation, and Air Conditioning) systems to monitor refrigerant flow. It allows technicians to visually inspect the system to check for leaks and ensure the refrigerant flows properly.\nSoda lime glass is also essential in industries where quality control is critical, such as the food and beverage industry. Soda lime sight glass can also help improve the efficiency of a process by allowing operators to identify and correct any issues that may arise quickly. This can help reduce downtime, increase productivity, and save money in the long run.\nChemical Processing: Sight glass is widely used in the chemical processing industry to monitor the flow of chemicals and reactions within the process. It allows operators to visually inspect the process without exposing themselves to hazardous chemicals. Sight glass is commonly used in chemical reactors, distillation columns, and storage tanks.\nFood and Beverage: Sight glass is used extensively in the food and beverage industry to visually inspect and monitor the flow of liquids and gases within the process. It is commonly used in the dairy, brewing, and pharmaceutical industries. The food and beverage sector is subject to strict regulation, And sight glass helps ensure the products are safe and meet the necessary quality standards.\nHVAC Systems: Sight glass is used in HVAC (Heating, Ventilation, and Air Conditioning) systems to monitor refrigerant flow. It allows technicians to visually inspect the system to check for leaks and ensure the refrigerant flows properly.\nPower Generation: Sight glass is used in power generation plants to monitor the flow of steam, water, and other fluids within the system. It allows operators to visually inspect the process and detect any issues that may arise before they become major problems.\nOil and Gas: Sight glass is extensively used in the oil and gas industry to monitor the flow of oil, gas, and other fluids within the system. It is commonly used in pipelines, storage tanks, and offshore platforms.\nSight glass is used in industrial manufacturing to monitor the flow of fluids and gases. It allows operators to visually inspect the process and ensure everything runs smoothly and efficiently.\nPharmaceutical Manufacturing: Sight glass is used extensively in the pharmaceutical industry to inspect and monitor the flow of liquids and gases visually. It is frequently employed in the production of medications and vaccines.\nWater Treatment: Sight glass is used in water treatment plants to monitor water flow and chemicals within the process. It allows operators to visually inspect the process and detect any issues that may arise before they become major problems.\nClear Advantages: Benefits of Using Sight Glass in Industrial and Commercial Applications\nEnhanced Safety: One of the primary benefits of using sight glass is enhanced safety. By allowing operators to inspect the contents of a vessel or process visually, sight glass can help identify any potential issues that may pose a safety risk. It allows operators to detect leaks, pressure buildups, or other hazards.\nImproved Efficiency: Sight glass can also help improve efficiency in the process. By visually inspecting the process, operators can quickly identify any problems and take appropriate action. This could increase production and cut down on downtime.\nCost-Effective: Sight glass is a cost-effective tool that requires minimal maintenance. Unlike other inspection tools that require complex mechanisms, sight glass is simple and easy to maintain. Its durability makes it an economical option to withstand the harsh industrial environment.\nVersatility: Sight glass can be customized to suit specific requirements in different applications. It can be designed in various sizes, shapes, and materials to meet specific process requirements.\nSight glass is a reliable tool that provides a clear view of the process. It is resistant to chemicals and high-temperature environments, making it an ideal tool for harsh industrial applications.\nCompliance with Standards: Sight glass is essential in a number of sectors, including the processing of chemicals, pharmaceuticals, and food and beverages. These industries are heavily regulated, and sight glass helps to comply with safety and quality standards.\nEase of Installation: Sight glass is easy to install and can be retrofitted to existing systems. It requires minimal modification to the system, making it a convenient option that can be installed quickly.\nIn conclusion, sight glass is an important tool in various industrial and commercial applications. It is a simple, cost-effective, and reliable way to visually inspect processes, identify potential hazards, and ensure safety and quality standards compliance. Sight glass offers enhanced safety, improved efficiency, and versatility, making it essential in various industries, including food and beverage, pharmaceutical, and chemical processing. Its ease of installation and minimal maintenance requirements make it a convenient option that can be quickly retrofitted to existing systems. Overall, the benefits of sight glass make it a valuable investment for any industry where visibility into a process is critical.\nRead More About: blogmags\nThis post was created with our nice and easy submission form. Create your post!","domain":"optical_engineering"}
{"url":"https://www.schroederglas.com/en-plattenmaterial.php","date":"2023-10-04T00:46:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511284.37/warc/CC-MAIN-20231003224357-20231004014357-00774.warc.gz","language_score":0.8757712244987488,"token_count":149,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__130801087","lang":"en","text":"Plates of natural quartz glass are produced from tubes. In this process, the tubes are cut open and, on exposure to heat, worked into plates.\nThe resultant slightly wavy surface is then fire-polished.\nFields of application\n- Chemical industry\n- Cover plates for UV and IR spotlights\n- Industry and research\n- Quartz glass\n- Outstanding optical transmittance – from UV to IR\n- Temperature stability up to 1050 °C (briefly up to 1200 °C)\n- Low coefficient of expansion\n- Good compressive strength\n- Very high purity\n- Low OH content (< 5 ppm)","domain":"optical_engineering"}
{"url":"https://campbellfordoptometry.com/eye-wear-and-products/","date":"2023-12-02T08:23:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100381.14/warc/CC-MAIN-20231202073445-20231202103445-00139.warc.gz","language_score":0.8595730066299438,"token_count":296,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__237635053","lang":"en","text":"Based on your prescription, our staff will advise you which lenses will work best for you. Lenses come in a variety of types and coatings.\n- Single Vision lenses have one fixed focus point or correction over the entire lens area. They can be used for either near, intermediate or distance vision. For instance, glasses for driving or reading are single vision.\n- Progressive lenses (no-line bifocals) allow for clear comfortable vision at distance, intermediate, and near.\n- Flat-top bifocals (with a line) gives you distance and near vision.\n- Transition lenses darken in sunlight and are a great alternative to sunglasses. Polarized sunglasses are also available and great for reducing glare when driving, fishing, golfing etc.\nWe carry Nike, Safilo, Fysh, Izumi, Boz, Jimmy Choo, Klik, Opthalmic, Boz, Jimmy Choo, JF Rey, Ernie Barcelona, Kate Spade & Boss.\nWe carry sunglasses by Maui Jim, Etnia Barcelona, Kate Spade, Boss\nWe carry and can order Johnson and Johnson, CooperVision, CIBA Vision\nEye Care Products\nVitamins by Vitalux – Vitalux Advanced, Vitalux S Plus Omega 3; Systane Gel Drops, Systane Balance, and Systane Ultra Lubricant Eye Drops, as well as Systane Lid Wipes.","domain":"optical_engineering"}
{"url":"https://angelfilms.com/equipment/33-camera-accessories/wireless-lens-control/arri-udm-1-ultrasonic-distance-measure/","date":"2023-12-04T22:55:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100535.26/warc/CC-MAIN-20231204214708-20231205004708-00253.warc.gz","language_score":0.8062903881072998,"token_count":118,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__234761516","lang":"en","text":"ARRI UDM-1 Ultrasonic Distance Measure\n94,00 € / Day\n(376,00 € / Week)\nYou will be able to set the timeframe for your rental from the order list.\nThe UDM-1 provides focus measuring data for any ARRI or other brand of camera. It measures the distance between the sensor/film plane and the subject or object with ultrasonic pulses. Can be connected to the camera via Serial to LBUS with Lcube-1.\n- Size: 205 x 135 x 70mm\n- Weight: 0.418kg","domain":"optical_engineering"}
{"url":"https://www.notebookcheck.net/Nikon-reveals-Nikkor-Z-DX-24mm-f-1-7-fast-APS-C-prime-lens-for-Z-mount-mirrorless-cameras-aimed-at-content-creation-on-the-go-photography.722745.0.html","date":"2023-09-30T03:05:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510575.93/warc/CC-MAIN-20230930014147-20230930044147-00131.warc.gz","language_score":0.9190087914466858,"token_count":616,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__315996093","lang":"en","text":"Nikon reveals Nikkor Z DX 24mm f/1.7 fast APS-C prime lens for Z mount mirrorless cameras aimed at content creation, on-the-go photography\nNikon recently announced the Nikkor Z DX 24 mm f/1.7 as the first prime lens for its DX-format APS-C cameras (via Fstoppers). One of the biggest advantages of having a prime lens designed for the APS-C system is that the smaller image circle allows for lighter and more compact lens designs that are more appropriate for the compact DX-format camera bodies.\nThe Nikkor Z DX 24 mm f/1.7 lens fits the bill as a compact, lightweight lens option for the almost-pocketable Nikon DX cameras, protruding only 40 mm (1.6 inches) off the front of the camera body. It also weighs in at just 138 g (4.8 oz), making it easy to carry about as a versatile everyday lens for street, landscape, and even portrait photography.\nNikon has equipped the Z DX 24 mm f/1.7 lens with silent stepper motors, while the lens consists of nine lens elements in eight groups, with two aspherical elements and 7 aperture diaphragm blades. It has a minimal focus distance of 0.18 m (0.59 ft), while the maximum aperture is f/11. The lens barrel itself is weather-sealed and features the typical customisable control ring for aperture, focus, and compensation controls.\nNikon is launching the Nikkor 24 mm f/1.7 at just US$279.95, making it a pretty convincing option for a walk-around lens that just lives on the camera. Nikon's closest alternatives to the Nikkor Z DX 24 mm f/1.7 are the diminutive US$499.95 Nikkor Z 26 mm f/2.8 and US$279.95 Nikkor Z 28 mm f/2.8, as well as the massive US$899.95 Nikkor Z 24 mm f/1.8 S, all of which are slower, much bigger, or much more expensive than the new Nikkor Z DX 24 mm f/1.7. Nikon has managed to strike an impressive balance between price, compactness, and speed, for this new Nikkor lens.\nAlthough the other Nikon Z mount prime lenses around the same focal length are certainly competent lenses, none of them are quite as compact, cheap, or fast as the Nikkor Z DX 24 mm f/1.7. As such, Nikon is billing the lens as a content creator lens that will serve for both video and stills work without breaking a sweat. Although, the versatile 36-mm full-frame-equivalent focal length does make it an attractive all-rounder, you might want to consider a lens with Nikon's VR stabilisation instead, considering none of Nikon's DX-format cameras come with IBIS.","domain":"optical_engineering"}
{"url":"https://www.simsa.at/en/special-effects/hologram-effects","date":"2023-12-05T14:56:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.2/warc/CC-MAIN-20231205140836-20231205170836-00549.warc.gz","language_score":0.9171074628829956,"token_count":578,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__230080198","lang":"en","text":"Printing in the iridescent colors of the rainbow\nWith our metallic hologram effects, you can have the iridescence and glitter of the rainbow colors printed. The effect is created by light refraction and reflection, also diffraction. Depending on the viewing angle, there is light reflection in the different spectral colors.\nWe deliberately use the term hologram effect because the color-changing effect of a hologram is in the foreground in most applications. However, the images involved are two-dimensional such as triangles, dots, stars or simply silver smooth. Microembossing can be used to incorporate additional customer-specific patterns, such as texts or logos.\nHologram effects are perfect eye-catchers for book covers, brochures or invitations . For certificates, diplomas and vouchers , there is also the added benefit of forgery protection against color copiers .\nTechnologies that go beyond this are also possible, but are much more complex: real holograms show holographically generated 3D images with depth effect. So-called \"kinegrams\"™ impress with two-dimensional motion sequences with changing viewing angles. These technologies can also be seen on a number of euro banknotes. They are mainly used in high-security printing, such as for banknotes, ID documents, or credit cards. However, in the case of vouchers or high-priced branded products, a higher print run can also justify commercial applications.\nSingle image holograms\nWe therefore also offer the positionally accurate application of genuine single image holograms, also called single image registered holograms. Most standard holograms have, within the applied outline, a continuous wallpaper pattern, such as stars, triangles or logos. The positioning varies a little bit from piece to piece, which nobody notices.\nWith single image holograms, however, an image is positioned precisely within the contours. A well-known example was the Mozart head on the famous Austrian 5,000 Schilling banknote.\nYou can find out more about the use of hologram effects in security printing here.\nEye catcher for premium printing\nHologram effects are also perfect for attracting the attention of potential customers from a distance. For example, they generate a great eye-catcheron business cards, invitations, magazine and book covers, stickers or posters.\nA hologram effect can also be used on packaging to create a psychological incentive to buy.\nPossibilities of hologram effects in printing\nWe metallize in hologram effect both on the full surface and in partial areas, such as texts or logos.\nWe can apply hologram effects to paper, cardboard, various plastics and self-adhesive films.\nIn the assortment of our simsa MetalPaper brand, we also carry hologram paper and hologram cardboard with the brand name \"MetalPaper Rainbow Silver\".","domain":"optical_engineering"}
{"url":"https://letsmoveschools.org/how-to-change-simmons-rangefinder-points-meters-to-yards/","date":"2023-12-11T06:20:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103558.93/warc/CC-MAIN-20231211045204-20231211075204-00315.warc.gz","language_score":0.9348503351211548,"token_count":977,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__110961435","lang":"en","text":"It is possible to get involved in archery involving long ranges without water, food or even proper clothing for a short while but a Simmon Rangefinder is indispensable at every moment of a successful shot at the eye of the needle. With hairsplitting precision,a Simmons Rangefinder alleviates the deficiency in the accommodation of targets beyond the range organically permissible for a human eye.\nA Simmons Ranger finds its utility in activities that require high precision such as in sports like Archery, Golf, hunting games and solely for the estimation of the target range. It is also applicable in the estimation of faraway targets range in the military parlance and in forestry.\nProfessional archers make it their ethical ability to take 100 yards distant shots by practising enough to acquire this ability. However, the Rangefinder surpasses such distance in its capacity and that suffices as a reason for the significant place of a Simmons Rangefinder in Archery.\nParts of a Simmon Rangefinder\nThe Simmon Rangefinder is a laser-based device of different types which are differentiated by the number printed on them. The number represents the maximum range measurable in meters or yards, which are its measuring units, with an accuracy of +/- 1 yard.\nIt has a portable body which is most times Black in color with a pouch for the battery (9 volt alkaline battery which should be changed at 12 month intervals) and a single power button.\nThe display system features a Liquid Crystal display screen showing the battery life Icon , the aiming window and the unit of measurement located at the lower right portion of the screen. The optical system features a fixed focus monocular optical system that consists of the Eyepiece lens and objective lens that generates the laser illumination.\nHow a Simmons Rangefinder works\nThe Simmon Rangefinder is a laser-based device which employs the use of the mathematical relationship between the speed of light, time and distance, the range, measured in meters or yards. It does this by sending an infrared light beam to the target which reflects the light back and the rangefinder measures the distance covered by measuring the amount of time round trip and interpolates it with the speed of light to get the range of the target.\nThe range estimation can be affected by the reflectance of the target surface for the archery, such that a dull or Black color target reduces the accuracy of the range estimation, size of the target, atmospheric conditions and steadiness of the user.\nIn order to operate the Simmons Rangefinder, while looking through the monocular , press the power button just once to open the display system (Liquid crystal display screen) . Aim the device at a point about 10 yards away , press the power button down until the range is displayed,then release the power button. To aim at new targets you can press the power button again.\nHow to change the Simmons Rangefinder points meter to yards\nThe Simmons Rangefinder Liquid crystal display (LCD) screen features an illuminated indicator that shows the unit of the measurement. It is located at the lower right corner of the screen. The units of measurement of ranges are in meters and yards.\nThe choice of the unit of measurement to be used is dependent on the user’s choice in terms of the measurement unit the user can easily relate his or her understanding of distance estimates to. It is necessary to have an idea of the distance to be estimated to get the best of the rangefinder such that an error made due to any fault in the rangefinder can be easily detected. Another means to know if your rangefinder is working perfectly is to use it in measuring short distances that can be estimated manually.\nThe LRF 600 is one of the best rangefinders among the array rangefinders Simmons has to offer, boasting features that makes it astonishingly accurate and intuitive to use. One can rely on this model for accurate measurement. Its LCD will display distances in meters or yards for targets that are within the range of 10 to 600 yards.\nSwitching between units of linear measurement of ranges is simple provided it is handled by one who is literate enough to operate the device and interpret the information. Before selecting the measurement unit that you prefer to use you must make sure that your rangefinder is turned off after which you hold the power button down for approximately 5 seconds while looking through the eyepiece. During this time the LCD and icons light up.\nAs you continue to press the power button , the unit of measurement (meter and yard), at the lower right corner of the screen, toggles back and forth. Once your desired unit pops up on the screen ,you should simply let go of the power button. The device keeps record of the previous unit of measurement you use such that when it is turned off and turned on again the last unit- either meters or yard, is displayed.","domain":"optical_engineering"}
{"url":"http://openaccess.iyte.edu.tr/handle/11147/5/discover?rpp=10&etal=0&group_by=none&page=7","date":"2019-10-14T18:51:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986654086.1/warc/CC-MAIN-20191014173924-20191014201424-00131.warc.gz","language_score":0.7709842920303345,"token_count":823,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__129855620","lang":"en","text":"Now showing items 61-70 of 1789\nDevelopment of a phase-OTDR interrogator based on coherent detection scheme\n(Uludağ University, 2018-12)\nWe present in this work, the experimental demonstration of a phase-sensitive Optical Time- Domain Reflectometer (phase-OTDR) having coherent detection scheme. An analysis algorithm has also been developed to calculate ...\n(Türk Patent Enstitüsü, 2017-01-23)\nBir sabit gövde; sabit gövde üzerinde hareket edebilir şekilde sağlanan bir taşıyıcı gövde; taşıyıcı gövde üzerinde sağlanan bir lazer kafa ve lazer kafanın taşıyıcı gövde hareketinden bağımsız olarak hareket etmesini ...\nDüzlemsel yüzeyde çalışan lazer işleme makinası\n(Türk Patent Enstitüsü, 2017-05-22)\nBir sabit gövde, sabit gövde içerisinde hareket edebilir şekilde sağlanan bir tezgâh, sabit gövde ile tezgâhı kısmen örtebilecek şekilde irtibatlı hareketli bir taşıma gövdesi ve taşıma gövdesi üzerinde sağlanan üzerinde ...\nDesign and experimental validation of an MR-fluid based brake for use in haptics\n(VDE Publishing House, 2018)\nIn this work, the design of an MR-fluid based brake system is given which is aimed to be used in kinaesthetic haptic devices. The brake design proposes a solution to the stiction problem which is common among the MR brake ...\nUYMS 2018: Önsöz\n(CEUR Workshop Proceedings, 2018)\nOn the formulation of parallel position/force control schemes for industrial manipulators\n(Shaker Verlag, 2012)\nIn this paper, three commonly-used position/force control schemes namely Impedance, Admittance and Hybrid Position/Force control are investigated for use in industrial manipulators. In order to eliminate the instability ...\nA study on selecting the method of constructing the information to be exchanged in unlimited-workspace bilateral teleoperation\n(Makina Teorisi Derneği, 2015-06)\nIn this paper, a study on selecting the mapping method for information exchange in unlimitedworkspace teleoperation is presented. In spite the fact that in most of the bilateral teleoperation systems, the master system ...\nExperimental verification of quasi-static equilibrium analysis of a haptic device\n(Azerbaijan Committee of International Federation for the Pomotion of Mechanism and Machine Science, 2017)\nHIPHAD v1.0 is a kinesthetic haptic device which was designed and manufactured in IzTech Robotics Laboratory. In this work, the quasi-static equilibrium analysis is carried out by including the gravitational effects. The ...\nA macro-micro mechanism design for laser cutting process\nThis paper is organized to provide the novel approaches during the design of a machine to shorten the laser cutting process. Macro-micro manipulation concept is employed for the design of this machine both in the mechanical ...\nExperimental investigation of refractive index measurement of common solvents and aqueous solutions in the infrared wavelengths\nWe proposed and experimentally demonstrated a fast and simple technique to measure refractive index of liquids. A commercial Optical Time-Domain Reflectometer (OTDR) was implemented for interrogating sensor tips from a ...","domain":"optical_engineering"}
{"url":"http://deli-host.info/secure-online-casino/explain-polarization.php","date":"2018-10-15T10:41:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583509170.2/warc/CC-MAIN-20181015100606-20181015122106-00451.warc.gz","language_score":0.906471848487854,"token_count":719,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__162382739","lang":"en","text":"In the following sections, we will try to explain polarization phenomena in terms of both A beam linearly polarized along the x-axis and traveling in the positive. Polarization, also called wave polarization, is an expression of the orientation of the lines of electric flux in an electromagnetic field (EM field). Discussion. Light is a transverse electromagnetic wave that can be seen by a typical human. Wherever light goes, the electric and magnetic fields are disturbed.\nExplain polarization - wie beim\nLight is electromagnetic radiation, an oscillating electric field orthogonal to an oscillating magnetic field. You can get light polarized in any direction, all at once, all overlapping. And there's also this direct sunlight. In circular polarization the electric vector rotates about the direction of propagation as the wave progresses. You have successfully emailed this. By slowly rotating euromillions 24 second filter, an orientation can be found in which all the light from an object is blocked and the object can no symbols of adventure be seen when viewed through two filters. Now that's a pretty cool observation that could never be free spielen sizzling hot by a particle view of light. Light becomes partially polarized as it reflects off nonmetallic surfaces such as glass, water, or a road surface. Polarized Light in Explain polarizationG. They demonstrate equal amounts, but opposite directions of optical rotation. And since the absolute phase of a wave is unimportant in discussing its polarization state, let us stipulate that the phase of e x is zero, in other words e x is a real number while e y may be complex. Beerling, Cambridge University, , ISBN In addition to specifying the polarization state of the wave, a general Jones vector also specifies the overall magnitude and phase of that wave. For instance, choosing right and left circular polarizations as basis functions simplifies the solution of problems involving circular birefringence optical activity or circular dichroism. Linear polarized light reflected from a metal at non-normal incidence will generally become elliptically polarized.\nExplain polarization Video\nIntro to Polarization Filters! deli-host.info are those sunglasses so expensive? But it also gets this direct light from the sun. When considering light that is propagating parallel to the surface of the Earth, the terms \"horizontal\" and \"vertical\" polarization are often used, with the former being associated with the first component of the Jones vector, or zero azimuth angle. In a vacuum , the components of the electric field propagate at the speed of light , so that the phase of the wave varies in space and time while the polarization state does not. It's going to be blurry. What would my eye see? Fragments of science, V. The process of transforming unpolarized light into polarized light is known as polarization. The effect of free electrons in the ionosphere , in conjunction with the earth's magnetic field , causes Faraday rotation , a sort of circular birefringence. In some types of transverse waves, the wave displacement is limited to a single direction, so these also do not exhibit polarization; for example, in surface waves in liquids gravity waves , the wave displacement of the particles is always in a vertical plane. As the filter is rotated, the partially polarized light is blocked and the glare is reduced. Since the phase shift, and thus the change in polarization state, is usually wavelength dependent, such objects viewed under white light in between two polarizers may give rise to colorful effects, as seen in the accompanying photograph.","domain":"optical_engineering"}
{"url":"https://theopenways.com/best-rifle-scope-under-300/","date":"2019-08-22T02:29:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027316718.64/warc/CC-MAIN-20190822022401-20190822044401-00523.warc.gz","language_score":0.9242680668830872,"token_count":1354,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__231083600","lang":"en","text":"Perfect hunting Requires the perfect types of equipment. What happens if you find a good target and you miss it. Hunting is a passion and some of us hunt to burn off the crazy. We have researched 5 best rifle scopes under 300 Bucks and tried to convey rifle scope reviews. After that, we are going to suggest the best picks long range rifle scopes that can be the best value for money.\nNikon is a well-known imaging product making company. There are many quality products in the market by Nikon. But here we are going to review of the perfect match for hunting rifle scope by Nikon. This can be the best rifle scope under 300 bucks.\nNikon Active Target BDC Rifle Scope is simple but the best one because of its features. It is shockproof, fog proof and water resistant. If you want to shoot the moving targets easily, the BDC active target reticle utilizes a unique open circle design that does not obscure the sight picture. Moreover, the BDC’s unique see-through ballistic circles offer an incredible option for long range shooting at the same time it allows a normal sight picture for shorter-range too.\nThere are multi layers of anti-reflective material on every glass to provide bright and vivid vision and optimum light transmission from dawn to dusk. The user has adjustment options with precise hand turn click adjustments. It just gets zeroed in quicker and maintains setting even with heavy recoil. The generous and consistent eye relief keeps your brow safe even with the heavy recoiling cartridges., Lightweight rifles and severe shooting angles. In Conclusion, This one is the recommended Riflescope for the best rifle scope under 300.\nThis is the best rifle scope with the brightest and strongest vision ever. The new Trophy XLT Series Riflescope by Bushnell got into the list of best rifle scope under 300 because of its good quality and reasonable price. The Scope is completely upgraded with multi-coated optics and provides 91 percent light transmission for maximum effectiveness at dawn and dusk. This is one piece tube scope so it is more durable than other scopes made in parts. The scope also has butler creek Flip-up covers to protect the lens. The scope is 100% waterproof, fog proof, and shockproof. Moreover, It has 3-9x40mm power to object and multi-x reticle to have Ultra fine shooting experience. The weight of the scope is good with 400g approx, the length is 11.9in, and the mounting length is 5.5 inches.The ¼ MOA fingertip adjustments make windage and elevation to be set as the user’s requirement. In conclusion, It can be the best rifle scope under 300 and best value for the money.\nThe Barska 4-16x50 Level Series hunting and tactical scope perfect one according to price and performance. We won’t be wrong to say this scope is also the best scope under 300. The scope has advanced features like illuminated MOA reticle, fully multi-coated optics, and lockable turrets. The 4-16xzoom magnification with 50mm objective lens is good to have the finest vision.\nMoreover, the tube diameter is 30mm and ¼ MOA click adjustments provide required setting experience.\nThe reticle is illuminated with red and green MOA and Second Focal Plane(SFP) functionality. That is good to provide Ultra strong and easy to see reticle even at the lowest magnification. Further, the scope is made by Aircraft grade aluminum and it is Waterproof, weather resistant, Shockproof and Fogproof at all. You can use the scope with 3.9 – 4.3in eye relief. It is difficult to find out the best riflescope with high-quality features with the lowest price under $300. But here, many latest features make this scope, the best rifle scope under 300.\nThe Scope Comes with the cover, 3” Sunshade, and lithium battery.\nThe other best Rifle Scope Under 300 is Vortex Optics Crossfire II. It is Specially designed, Hunters and Shooters. The Crossfire II series from Vortex offers the next level performance to the user. It is the best scope to use in low light from evening to dawn. The 30mm tube Riflescope has multi-coated optics with anti-reflective coatings and oversized 56mm objective lens. The material of the scope is long lasting. Moreover, the single piece aircraft grade aluminum tube is solid enough and good for water or fog proof performance.\nThe scope also has V-Brite illuminated MOA reticles for better low light performance. This is actually a V-Plex system along with the battery to illuminate the center dot for the best low light result.\nSecond Focal Plane (SFP) style or reticle provides original vision and does not visually change in size even changing the magnification. This is the main advantage of an SFP reticle, that it always maintains the same appearance. The scope has 3-12x56 zoom functionality with 3.5” eye relief. The length is 14.5” and the weight of the scope is 600grams approx.\nIf you want some better-featured Rifle Scope you can check here.\nThis is another Rifle Scope under 300 with awesome features. It is High-performance tactical cope with 3-9x40mm zoom objective lens. It provides a fine vision with 3.5-3.8in eye relief that is good enough for any professional shooter. This also has a multi-layer coated lens and close to midrange 400+ yards fine targeting. The objective diameter 40mm with 3-9x magnification. The weight of this scope is 624 grams and length is 10.8in that is good to fit on rifles with Picatinny rails. Moreover, this rifle scope is fog and water resistant with nitrogen sealed safety.\nThe scope has the first focal plane (FFP) range finder reticle for faster range estimation and holdover correction. Aan etched black reticle is always visible without illumination. Or can be lit red or green for better reticle vision at night or low light timing.\nThe reticle illumination touch button switch allows quick reticle adjustment with adjustable objective (AO) lens that moves by the side focus dial. All the settings allow perfect target image elimination of parallax and range estimation. Further, ¼ MOA/Click windage & elevation adjustments, zero reset and turret locks makes this rifle scope one of the best rifle scopes under 300 bucks.\nCheck Other Best Long Range Rifle Scopes with High-Performance Results","domain":"optical_engineering"}
{"url":"https://www.browningtrailcameras.com.au/products/browning-dark-ops-pro-xd","date":"2023-12-01T02:39:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00437.warc.gz","language_score":0.8477190732955933,"token_count":357,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__45524895","lang":"en","text":"The Dark Ops Pro XD features “Dual Camera Lens Technology”. This feature incorporates a custom tuned daytime camera lens to produce razor sharp daytime images, while the dedicated night camera lens takes incredibly clear nighttime photos. This camera packs all the performance you would expect with 24MP picture quality, 1080p Full HD video with sound, lightning fast 0.15 second trigger speeds, and superior battery life.\nAdditional features include SD card management options and Smart IR video to keep recording game during the daytime. The Dark Ops Pro XD is compatible with up to 512GB SD cards.\n- 0.5 second picture recovery time\n- Illuma-Smart Technology Automatically adjusts IR Flash for Perfect Night Photos\n- All-Steel adjustable tree mounting bracket\n- SD card management\n- Long battery life from 6 AA batteries (not included)\n- Up to 8 multi Shot images\n- Up to 8 Rapid Fire images\n- Smart IR video\n- Programmable picture delay (1 sec. – 60 min.)\n- Picture info bar displays: time, date, temperature, moon phase, barometric pressure, camera ID\n- 12 volt external power jack\n- Support up to 512GB SDXC memory card (not included)\n- ¼” -20 tripod socket\n- Compact case size 4.25” x 3.5” x 2.5”\n- Timelapse Plus camera mode with IR triggered images\n- Compatible with Browning Buck Watch Timelapse viewer software\nAll cameras sold by Browning Trail Camera Australian come with 12 months Genuine Australian Local Warranty. We are Officially AUTHORISED to distribute Browning Licensed products in Australia. Which means you get 1 Year Australian GENUINE Local warranty on all cameras.","domain":"optical_engineering"}
{"url":"https://www.artesianmedia.com/blog/enhancing-spacetime-new-video-process-uses-high-res-stills-to-beef-up-low-res-video/","date":"2023-11-30T23:33:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100258.29/warc/CC-MAIN-20231130225634-20231201015634-00376.warc.gz","language_score":0.9510527849197388,"token_count":418,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__7237386","lang":"en","text":"Probably the best way to view this video is with the annoying voiceover turned down.\nBasically, what is going on here is that researchers at the University of Washington have come up with a way to use high-resolution still photos to provide detail to low-res video. The results are definitely eye-catching.\nI’ve noticed the artifacts and “slices” in some morphing footage in the past, and wondered what was up with that.\nWhat this means is that a news reporter can, with Fred Flintstone-esque technology, capture some fantastically detailed footage … say, by duct-taping a 21-megapixel camera to an HD or even SD camera (the closer the lenses are to source point, the less you’ll have to mess about with parallax), and shooting a series of stills to go along with the video footage.\nImagine how good slo-mo footage at a sporting event can be with this. Or how amazing footage of, say, Obama’s inauguration would have been if you’d been able to zoom in from the Washington Monument all the way to a close-up of his hand on the Bible.\nOur algorithm targets the emerging consumer-level hybrid cameras that can simultaneously capture video and high-resolution stills. Our technique produces a high spacetime resolution video using the high-resolution stills for rendering and the low-resolution video to guide the reconstruction and the rendering process.\nI say: using one camera is not an optimal solution. Most of the “hybrid” cameras that can capture both hi-res and video suffer from one big flaw: cheap glass. The lenses on these cameras are not really up to the task. Having a second still camera on hand to do the work would mean that you’d get the benefit of a decent lens & its attendant sharpness.\nIt’ll be fun to see what happens in a few years, when this is commercially available as a plug-in on Final Cut or Premiere…","domain":"optical_engineering"}
{"url":"https://thedigitalstory.com/2014/12/panasonic-35-100mm-lens-review.html","date":"2022-12-01T06:31:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710801.42/warc/CC-MAIN-20221201053355-20221201083355-00182.warc.gz","language_score":0.9152993559837341,"token_count":555,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__263466890","lang":"en","text":"The Panasonic LUMIX G VARIO 35-100mm f/4.0-5.6 ASPH. MEGA O.I.S. zoom lens, designed for Micro Four Thirds cameras, packs a ton of quality into a small, jewell-like package.\nThe optic weighs a mere 4.76 ounces and is measures a svelte 2.19\" x 1.97\" (DxL). Yet, its effective focal length is 70mm-200mm, perfect for outdoor field work. When mounted on Panasonic mirrorless cameras, the optic's built-in image stabilization is rated at 3 stops.\nOn Olympus bodies, photographers have the option of using sensor-based stabilization or optical MEGA O.I.S. They can switch to optical in the \"gear\" menu > \"C\" Release > Lens I.S. Priority. Since the optical stabilizer is quieter than the sensor-based alternative, there may be situations where Olympus owners want to take advantage of this feature.\nThe Panasonic lens maintains its compact size by retracting. To use it, twist to the right to move it into zooming position. The nicely-damped zooming ring keeps the barrel in place regardless of shooting position. The manual focusing ring also feels good. Like the image stabilization, switching to manual focus happens in the camera's menu. There are no switches on the lens itself.\nOutdoors, focusing is fast and accurate. Indoors, the lens may hunt for a second or two before confirmation. This highlights the fact that the Panasonic 35-100mm f/4-5.6 is an outdoor lens. Its maximum aperture and focusing capability will not satisfy the indoor, existing light photographer. Outside, however, the optic is a joy to use.\nImage quality is excellent edge to edge, with slightly better performance in the center. Distortion and chromatic aberration are also well-controled, a surprising performance for such a compact, affordable zoom.\nThe Panasonic 35-100mm f/4.0-5.6 zoom lens was released in late October for $397. It's styled to compliment the Panasonic GM line of mirrorless bodies. But it looks great on the Olympus cameras too. Its metal barrel construction and mount feel solid, and the swift focusing via the stepping motor inspire confidence. The optical performance is very satisfying.\nBottom line: I love this lens. It's a quality optic that's easy to carry with me. My prediction is that I'll be capturing beautiful images with it for a very long time.\nWant to Comment on this Post?\nYou can share your thoughts at the TDS Facebook page, where I'll post this story for discussion.","domain":"optical_engineering"}
{"url":"https://sosgunsandammo.com/product/sig-romeo-zero-reflex-6moa-coyote/","date":"2024-04-14T23:03:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816904.18/warc/CC-MAIN-20240414223349-20240415013349-00172.warc.gz","language_score":0.9188725352287292,"token_count":191,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__21440614","lang":"en","text":"The SIG Sauer ROMEO Zero red dot sight features an ultra-compact, lightweight, and durable design optimized for compact and sub compact concealed carry pistols. Unlike other pistol red dot sights, the ROMEO Zero is fully made from reinforced polymer including the lens which has been teste to withstand up to 10 times the impact force that a traditional glass lens can withstand. It features a highly efficient LED emitter that is 8 times more efficient than other red dots and can last up to 10 years on a single CR1632 battery. Additionally, the MOTAC motion activated system will turn off the 6 MOA red dot when sitting still and will automatically turn on the moment your pistol begins to move. An integrated rear sight is compatible with the standard front sight on the SIG P365 handguns allowing you to use your iron sights as an indexing point to quickly find the red dot. Additionally, it comes with an aluminum shield for protection from impacts.","domain":"optical_engineering"}
{"url":"https://www.auto-leds.co.uk/epages/es694511.sf/en_GB/?ObjectPath=/Shops/es694511/Categories/Bulbs/T10/5050_SMD","date":"2022-06-27T11:50:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103331729.20/warc/CC-MAIN-20220627103810-20220627133810-00183.warc.gz","language_score":0.7240279912948608,"token_count":105,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__128179439","lang":"en","text":"Quality T10 5050 SMD LED bulbs. Our T10 5050 SMD LED bulbs are ideal replacements for standard T10 bulbs.\nT10 5 x 5050 Cool White SMD LED Bulb. Available in Cool White, Blue, Red, Green, Yellow, Pink and UV.\nT10 9 x 5050 White SMD LED replacement bulbs in various colours. Direct replacement for standard T10 bulbs.","domain":"optical_engineering"}
{"url":"https://inwisconsin.com/entrepreneurs/innovation-investment-portfolio/onlume-inc/","date":"2023-12-06T17:18:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100602.36/warc/CC-MAIN-20231206162528-20231206192528-00486.warc.gz","language_score":0.9054776430130005,"token_count":104,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__192307838","lang":"en","text":"INVESTMENTS IN INNOVATION\n901 Demming Way Suite 302\nOnLume is a medical device company developing an intuitive platform for precise fluorescence image-guided surgery. We are committed to providing surgeons with critical information on tissue types, features, and function in real-time during surgery through fluorescence. Our novel approach allows for excellent image quality at low concentrations even under well-lit conditions, and is compatible with a broad spectrum of targeted dyes for applications across the gamut of surgical disciplines.","domain":"optical_engineering"}
{"url":"https://w3.aapm.org/meetings/2019AM/programInfo/programAbs.php?&shid%5B%5D=1514&sid=8165&aid=45051","date":"2023-10-03T03:57:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511053.67/warc/CC-MAIN-20231003024646-20231003054646-00811.warc.gz","language_score":0.8860704302787781,"token_count":398,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__253482428","lang":"en","text":"Room: ePoster Forums\nPurpose: Due to the near 1/r²-characteristic of the photon fluence and the volume averaging effect, accurate ion chamber measurements are only feasible beyond a minimum source-to-detector-distance of a few centimetres. The cross-calibration of smaller detectors can allow accurate measurements closer to the source. The referenced cross calibration setup positions the detector tip towards the source, thus aligning the source centre and the symmetry axis of the detector (angle of incidence = 0°). In measurements of spatial dose distributions, the angle of incidence can deviate from zero.\nMethods: The directional dependence of the response of two ionization chambers, the PinPoint 3D 31016 and the PinPoint 3D 31022, the silicon diode 60017 and the MicroDiamond 60019 (all PTW, Freiburg, Germany) were measured and simulated for an angular range of ± 110°. The measurements were performed with the source centred in an MP3 water phantom. After locating the source the directional dependence was be measured by moving the detector on a circular path around the source without changing its orientation. Monte Carlo simulations were performed in a corresponding geometric setup. Three source-to-detector-distances were regarded.\nResults: The directional dependence generally decreases with increasing distance to the source. At a source-to-detector-distance of 25 mm the diode shows up to 32% signal loss, the PinPoint3D 31022 up to 35 % in relation to the reference point 0°. The PinPoint3D 31016 and the MicroDiamond 60019 show less than 6% respectively 9% signal change.\nConclusion: The MicroDiamond 60019 and the PinPoint3D 31016 show the smallest angular dependence of the detector response. With appropriate correction factors these detectors could be suitable for measuring spatial dose distributions near 192Ir-brachytherapy sources.","domain":"optical_engineering"}
{"url":"http://cain4676rjzblog.amoblog.com/two-facts-you-do-certainly-not-comprehend-with-regards-to-lasik-eye-medical-procedure-9224552","date":"2019-05-21T04:25:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256227.38/warc/CC-MAIN-20190521042221-20190521064221-00125.warc.gz","language_score":0.9565684795379639,"token_count":890,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__18292280","lang":"en","text":"Two Facts You Do Certainly Not Comprehend With Regards To LASIK Eye Medical ProcedureThe eye can be analyzed with relative ease as to both its function and its structure. A functional evaluation consists of the capability to move in the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be evaluated in a number of methods. The client may be asked to determine illuminated letter or things of differing sizes on exactly what is called the Snellen chart.\nAlternatively, the assessment of the structural part of the eye might be made in numerous methods. Tension within the eyeball is measured by a \"tonometer.\" In certain diseases, especially in glaucoma, the tension in the eyeball is increased noticeably.\nIt needs to be well remembered that a client with an eye problem may have other issues. Typically other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can alert the patient and the physician to troubles in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nOne's dependence on sight is emphasized when one deals with a short-term or possible long-term loss of this important sense. For this reason, when restorative measures are looked for, specific forms of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were established to motivate decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this type of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people must understand. Most likely, the main factor why this kind of eye surgical treatment has become well accepted is due to the fact that many of its cases had actually achieved success.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nDue to the fact that LASIK eye surgical treatment includes the operation of the retina, which is among the most delicate portions of the eye, many people say that the operation can be extremely risky.\nTo puts it simply, a simple mistake might practically cause an person's lifetime blindness. It is essential to consider many elements before choosing whether LASIK eye surgical treatment is the ideal restorative measure one has to undergo.\n2. It is not a ideal treatment\nLASIK eye surgery might correct your vision but it does not always imply that it can offer you a perfect vision. Even if analytical reports reveal that 70% of the patients might have 20/20 vision, this does not necessarily indicate they have ideal vision.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not constantly be the ideal eye surgical treatment the way a lot of people view it\nOn the other hand, the assessment of the structural part of the eye may be made in several ways. It must be well kept in mind that a client with an eye problem might have other problems. Frequently other physical conditions are main and impact the eye as a effect. The look of the eye can alert the patient and the physician to problems in some disruptions of other parts of the body even prior to other signs provide themselves.\nLike its concrete equivalent, look at this website LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://wahahasunny.en.made-in-china.com/","date":"2018-08-16T22:11:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221211185.57/warc/CC-MAIN-20180816211126-20180816231126-00423.warc.gz","language_score":0.7983102798461914,"token_count":298,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__111293406","lang":"en","text":"LED Light Bar, HID Xenon Kit, LED Work Light manufacturer / supplier in China, offering for Jeep Wrangler Turn Signal 2007-2017 for Jeep Wrangler Front Grille Turn Signal Light, 2007-2017 for Jeep Wrangler Jk 2 Tool Kits Bottle Drink Phone Holder, Tailgate Storage Box for Jeep Wrangler and so on.\n|Business Type:||Trading Company|\n|Main Products:||LED Lighting Bar , HID Xenon Kit , LED Work Light , Off Road LED Light Bar , HID Work Lamp.|\n|Number of Employees:||8|\n|Year of Establishment:||2011-12-12|\n|Plant Area:||200.0 square meters|\n|Average Lead Time:||\nPeak season lead time: within 15 workday\nOff season lead time: within 15 workday\nShenzhen Lantsun Electronic Technology Co., Ltd. is a professional manufacturer and exporter of car accessories, including HID and LED products.\nThe main products are HID xenon conversion kit, 4X4 lights & lighting, such as HID driving lights, 4X4 HID worklights, HID offroad lights, 4X4 fog lights, LED light bar, LED driving lights, LED worklights, HID scope mounting lights, HID handheld lights\nIn all, HID off road light series, HID work light series, HID spotlight series, HID ...","domain":"optical_engineering"}
{"url":"http://www.bloomzcaraudio.co.uk/products/miscellaneous/laser-jammer-diffuser-tester.html","date":"2022-07-04T23:27:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104506762.79/warc/CC-MAIN-20220704232527-20220705022527-00764.warc.gz","language_score":0.9334144592285156,"token_count":226,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__250400947","lang":"en","text":"The Laser Jammer Tester produces the same exact pulse rates as real police LIDAR guns. Select a gun in the memory bank and push the fire button. The tester will fire the pulse rate you selected for as long as you like.\nWhy is the Laser Jammer Tester critical to your laser jammers operation? Well, unless you have a LIDAR gun or are shot by an officer you simply won't know if your jammer actually detects all the laser guns used today.\nIf your jammer doesn't work you're getting a ticket. It's far cheaper to make sure your transponders work before you hit the road than paying for a ticket. It's a no brainer.\nThe Tester will simulate the TruSpeed USA and TruSpeed TS2 EU version along with 15 other LIDAR guns.\nIf you don't test your laser jammer you really don't know if it's defective or not.\nWARNING: This laser tester produces the same Infrared light a real lidar gun produces. Never look at the IR LED in front of the unit.","domain":"optical_engineering"}
{"url":"https://corona.jogjaprov.go.id/hymenopteron445801.html","date":"2022-01-19T17:49:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301475.82/warc/CC-MAIN-20220119155216-20220119185216-00111.warc.gz","language_score":0.8290223479270935,"token_count":504,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__208090792","lang":"en","text":"$10 Global Vision Clear Low Light/Night Motorcycle Riding Glasses/Bi Men Accessories Men , Accessories,$10,Global,Vision,Motorcycle,corona.jogjaprov.go.id,Light/Night,Riding,Clear,Low,/hymenopteron445801.html,Glasses/Bi Global Vision Clear Low Light Riding Spring new work Glasses Night Bi Motorcycle Men , Accessories,$10,Global,Vision,Motorcycle,corona.jogjaprov.go.id,Light/Night,Riding,Clear,Low,/hymenopteron445801.html,Glasses/Bi $10 Global Vision Clear Low Light/Night Motorcycle Riding Glasses/Bi Men Accessories Global Vision Clear Low Light Riding Spring new work Glasses Night Bi Motorcycle\nThe aerodynamic Shatterproof Polycarbonate one-piece wraparound UV400 Lens gives excellent peripheral vision whilst offering the utmost protection from both flying objects and the suns harmful rays. The Category 0 Clear Lens make these ideal for use in winter, overcast, low light and winter riding conditions. They have E.V.A Foam padding and so offer better protection than normal glasses by deterring wind turbulence but still offer the minimalist design and style of Glasses. Rider plus frames also wrap around to ensure they stay put, while rubber tipped bows (arms) make them both easy to insert and comfortable to wear under your helmet. A clear flash mirrored coating gives a stylish appearance or as the Americans call it âprivate eyesâ. The lens is also 'Decentered' this not only ensures optical clarity but also eliminates eye strain. A free micro-fibre pouch is included for safe storage and Global Eyewear Store lens cleaning cloth. Rider Plus Clear Flash Mirrored Motorcycle Glasses exceed both European (EN166, EN170) and American (ANSI Z87.1+S) safety standards for glasses and protective eyewear. This certifies the utmost standards of both U.V and impact protection. Global Vision is the no.1 selling eyewear brand at both Sturgis and Daytona bike week in the U.S.\nNot for direct observation of the sun. Not for protection against artificial light sources, e.g. Solaria\nWe are sorry that this post was not useful for you!\nLet us improve this post!\nTell us how we can improve this post?","domain":"optical_engineering"}
{"url":"https://alwaysglasses.com/everything-you-need-to-know-about-gentle-vision-shaping/","date":"2023-03-24T15:52:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945287.43/warc/CC-MAIN-20230324144746-20230324174746-00534.warc.gz","language_score":0.9275891184806824,"token_count":1106,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__99279662","lang":"en","text":"Gentle Vision Shaping is a system that corrects your eyesight gradually over time. Before you opt for this correction program, however, it’s important to learn all there is to know about how it works.\nGentle Vision Shaping uses vision retainers to reshape the cornea and works to eliminate nearsightedness, farsightedness, and astigmatism. There is no surgery necessary in this regimen.\nWhat is Gentle Vision Shaping?\nGentle Vision Shaping is a vision correction program that works over time to correct patients’ vision. It’s easiest to think of it as the vision correction equivalent of braces.\nGentle Vision Shaping works by reshaping the cornea, or the outer part of your eye, while you sleep using a molding lens, or vision retainer.\nYou put the retainers on when you sleep at night, then remove them when you wake up.\nGentle Vision Shaping can correct both near and farsightedness, as well as astigmatism. Another name for this vision correction system is “ortho-k,” or orthokeratology.\nHow Does Gentle Vision Shaping Work?\nGentle Vision Shaping uses small retainers made of gas-permeable, hard plastic lenses.\nPutting them on is easy and requires little effort on the wearer’s part. To insert the retainer lenses, follow the steps below:\n- Apply a couple of drops of your insertion eye drops into the back of your lenses.\n- Place the retainer lens on your index finger.\n- Insert the retainer lens directly into the center of your eye in the face-down position.\nPractitioners recommend that you insert the right retainer lens first to avoid confusion.\nThe entire program takes approximately two years to complete, through which you need just two sets of retainer lenses.\nWho Developed Gentle Vision Shaping?\nGeorge Jessen developed the Gentle Vision Shaping system. Jessen began designing prototypes for the system in the 1960s using polymethyl methacrylate (PMMA).\nGeorge Jessen grew up with a father who was blind, which initially sparked his interest in preserving eye health.\nJessen started with corrective lens designs, dubbed “Orthofocus,” a type of gentle vision shaping lenses that were thought to operate more on luck than actual science.\nAs time progressed, his company was able to show that his product worked, but they had no scientific proof to back it up.\nBecause of this, the FDA did not approve this procedure until 2002.\nAre There Any Risks Associated with Gentle Vision Shaping?\nSome risks are associated with the Gentle Vision Shaping system, but they are similar to those associated with wearing soft contact lenses.\nOne of the most prominent risks of Gentle Vision Shaping is an increased chance of hypoxia. When the cornea experiences hypoxia, it may show signs of swelling and clouding. Hypoxia causes fluid to build up in the cornea, causing foggy or cloudy vision.\nHowever, the risk of experiencing hypoxia with Gentle Vision Shaping is low because the small retainers are used for shorter durations of time than other corrective lenses.\nAnother risk associated with Gentle Vision Shaping is a higher risk of eye infection, mainly bacterial keratitis. This can result in vision loss or blindness if not treated properly.\nWho is a Candidate for Gentle Vision Shaping?\nThere’s actually a surprisingly large number of candidates who qualify for Gentle Vision Shaping.\nThe procedure is FDA approved for all ages, but may be particularly interesting to those who meet any of the following conditions:\n- Nearsighted patients\n- Patients who are opposed to surgery\n- Those with a low or moderate astigmatism\n- Children who have experienced a drastic change in nearsightedness\n- Children with a family history of high or progressive nearsightedness\nThere are many qualifying factors for Gentle Vision Shaping, many of which pertain specifically to children.\nHow Much Does Gentle Vision Shaping Cost?\nDepending on how severe your vision issues are, the cost of Gentle Vision Shaping can range from $2100 to $3000. This estimate includes molds and retainers.\nInsurance does not cover Gentle Vision Shaping, but it does qualify for a Flexible Spending Account (FSA).\nDepending on the doctor you visit, you may also be able to use Care Credit to finance the cost.\nGentle Vision Shaping is an affordable permanent vision correction option, less than half the cost of LASIK and other vision correction surgeries.\nWhy Choose Gentle Vision Shaping Over Corrective Lenses?\nGentle Vision Shaping offers several advantages over traditional eyeglasses and contact lenses.\nThe Gentle Vision Shaping system was mainly invented to free patients from wearing corrective lenses throughout the day.\nGentle Vision Shaping is especially great for patients who work in dusty or dirty areas that could irritate their corrective lenses, as well as those who experience dry eyes.\nAnother great advantage of using Gentle Vision Shaping is that it has been proven to significantly slow the progression of nearsightedness.\nThis corrective method is a great option for young children experiencing nearsightedness, eliminating the worry of losing or damaging corrective lenses.","domain":"optical_engineering"}
{"url":"https://y2mate24.com/sunines-high-quality-co2-laser-marking-machine-the-pinnacle-of-precision-and-versatility/","date":"2023-12-02T06:06:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100327.70/warc/CC-MAIN-20231202042052-20231202072052-00507.warc.gz","language_score":0.9156565070152283,"token_count":429,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__88874476","lang":"en","text":"In today’s fast-paced industrial landscape, precision and versatility are paramount. Sunine, a trusted name in laser technology, has introduced the V610C, V620C, and V630C CO2 laser coding machines, setting new standards in marking and engraving across a wide range of materials, from wood and paper to cardboard, glass, rubber, and PET. These machines harness the power of the carbon-dioxide laser, a technology known for its efficiency, superior output quality, and stability. In this article, we delve into the remarkable features of Sunine’s CO2 laser marking machines and explore how they cater to various industry needs.\nThe CO2 Laser: Unveiling the Powerhouse\nThe heart of Sunine’s CO2 laser marking machines lies in the carbon-dioxide laser technology. These gas lasers are renowned for being the highest-powered continuous-wave lasers available today. They boast remarkable efficiency, with an output power-to-pump power ratio reaching as high as 20%. What truly sets them apart is their ability to emit an infrared beam of light, with primary wavelength bands centered at 9.3 μm, 10.2 μm, and 10.6 μm.\nCompared to other laser technologies, such as those with liquid or solid-state mediums, CO2 lasers offer better beam output quality and frequency stability. This results in more precise and reliable marking and engraving, making them the preferred choice in various industries.\nSunine’s V610C, V620C, and V630C CO2 laser coding machines represent the epitome of laser technology. Their use of CO2 lasers, coupled with precise wavelength selection, allows for unparalleled performance across a multitude of materials. Sunine has truly raised the bar in the industry by providing high-quality, reliable, and versatile laser marking solutions. Whether you’re in the packaging, glass, or beverage industry, Sunine’s CO2 laser marking machines are sure to meet and exceed your expectations, making your marking and engraving tasks a breeze.","domain":"optical_engineering"}
{"url":"http://scientex.co.jp/english/otdr-2100gof-400.html","date":"2018-01-19T21:36:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084888135.38/warc/CC-MAIN-20180119204427-20180119224427-00207.warc.gz","language_score":0.7894886136054993,"token_count":289,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__248276501","lang":"en","text":"(High resolution optical fiber test instrument of the blue-light laser\n(High resolution optical fiber test instrument of the blue-light laser type)\nAnalyze a luminescent material in an optical fiber\nThis high resolution OTDR uses for the blue-light laser for excitation.\nIt measures the point and the amount of luminescence when impurities and luminescent are present in an optical fiber.\nPlease check the specifications on the catalog\n*Selectable wavelength:405,440,473nm. (473nm:Core is 3.5um)\n*All optical fibers are single-mode fiber in each wavelength.\n|Spatial resolution : 1cm. Very short dead zone!!\nUsing the blue-light (400nm band) laser.\nHigh sensitivity by photon counting mode\nVarious analysis (defect, transmission loss...etc)\nConformable to CE marking (EU safety standard)\nOperation is easy by the software of the Windows.\n|Measure points of weakluminescence in an optical fiber\nOptical fiber defect inspection.\nYou can watch the demo of OTDR on You Tube!!\n*Windows are registered trademark of the United States Microsoft Corporation\nin the United States and in order countries.\n*This insturument is possible to test the performance of optical fiber. We don't guarantee against the performance that if you use this OTDR for other purposes.","domain":"optical_engineering"}
{"url":"http://helpdesk.txplore.com/support/solutions/articles/35000031232-what-is-the-difference-between-a-photoresistor-ldr-and-a-photodiode-","date":"2019-02-21T22:46:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247511174.69/warc/CC-MAIN-20190221213219-20190221235219-00482.warc.gz","language_score":0.9260237216949463,"token_count":267,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__39887764","lang":"en","text":"As the name suggests, a photoresistor is a variable resistor. The resistance of this device changes as the light intensity that hits it changes.\nThis makes the LDR an excellent choice for detecting not just light, but how much light there is.\nOn the other hand, a photodiode is a diode, connected in reverse bias, which means in the opposite direction that you would connect a normal LED or diode. A photodiode will turn on (allow current to go through it) when light above a certain level of intensity hits it.\nWhile a photoresistor is an analog device, with values that vary from a few Ohms to several tens of KiloOhms, a photodiode has two states only, on or off.\nA photodiode, also, responds very quickly to changes in light intensity - quicker than a photoresistor.\nThese properties dictate what you can do with these devices.\nIf you want to know how bright the lights in a rooms are so you can control a dimmer, you would use a photoresistor.\nIf you want to read a message encoded in a infrared beam of light, or laser, like it happens in a TV set remote control, or a CD/DVD player, than you would use a photodiode.","domain":"optical_engineering"}
{"url":"http://gemsmanual.com/gems-education/optical-qualities-of-gems/","date":"2021-03-05T23:10:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178373761.80/warc/CC-MAIN-20210305214044-20210306004044-00585.warc.gz","language_score":0.9509543180465698,"token_count":604,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__127787456","lang":"en","text":"Gemstones possess several physical and chemical qualities, however the most valuable quality of gems are in their optical properties. Principal optical properties of gemstones are: single and double refraction and polarization of light.\nThe term “refractive power” means an ability of any transparent surface (surface of a gemstone in our case) to altering the direction of a ray of light, directed at it. Thus, a brilliance, that we observe on the surface of any gemstone is nothing else than its refractive power.\nAll gemstones are separated according to their ability to refract a ray of light into two groups:\n- The gems that possess single refraction\n- The gems that possess double refraction\nEach of us learned from the school physics course, that any ray of light, directed to any transparent surface will bend or refracted from its direction and proceeds to another course. This is an illustration of a single refraction.\nIf a ray is passing through a crystalline body, it is divided into two different rays, that are spread in several directions inside the crystal. One of them, so-called “ordinary ray” is going in the direction, which coincides with the law of “single refraction,” the second one so-called “extraordinary ray” follows a different law. Therefore, all the crystals, possessing of this quality are doubly refractive.\nPolarization of Light\nThe term “Polarization of Light” has been introduced by Newton, in 1704. He concluded, that when a ray of light falls on a plate of transparent glass under an angle of 56 degrees, and after refraction falls towards to the second plate under the same angle, so, if two these plates are horizontal, the ray will reflect from second plate, maintaining the angle of inclination of 56 degrees; whereas, if the second plate will be turned in vertical position, the ray will no longer be reflected, and will disappear.\n- Thus, the ray in that case is called “Polarized.”\n- The angle of 56 degrees is called the “Polarizing Angle.” However, this angle is different for all bodies, thus, for instance, the polarizing angle of Diamond is 68 degrees.\nBy the way, this principle was used by such well known corporation as Polaroid. Exactly this physical feature is used in their lenses to protect your eyes against of so-called “horizontal component” of light, which is represented only an “optical noise” and “adverse solar flare,” whereas the “vertical component” of light represent to human eye an useful information such as the color and contrast, according to their researches.\nMoreover, such gem as Tourmaline is primarily used to polarize light.\nAn effect of polarization is also used to determine such property as double refraction, described above.","domain":"optical_engineering"}
{"url":"https://www.homesecuritybuddy.com/how-do-night-vision-cameras-work/","date":"2017-09-20T03:46:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818686169.5/warc/CC-MAIN-20170920033426-20170920053426-00088.warc.gz","language_score":0.9122823476791382,"token_count":1211,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__13002953","lang":"en","text":"How Do Night Vision Cameras Work?\nA lot of people can now discover and explore of the world even in total darkness. If you are the kind of person who is always out in the dark, night vision cameras can be of great help. People camping or hunting can use cameras with night vision technology to be handy for them. For a lot of years, the military has utilized night vision equipment. With today’s advancements, night vision cameras have improved and now being used in fields like photography and cinematography.\nIf you don’t have any clue on how a night vision camera works, you have to define night vision is. Basically, night vision is having the ability to see in the dark. This may be done either biologically or with the use of technology.\nThe light that you see in night vision cameras is electromagnetic radiation. You’re only able to see small part of an electromagnetic spectrum. This part you can see is known as visible spectrum. There are numerous kinds of radiation and part of this is infrared radiation. It is a low energetic radiation and it’s widely utilized in night vision cameras. Generally, the concept is quite simple. Night vision cameras are a device that emits infrared light and capable of detecting this in a camera. The primary difference between a camera and night vision cameras is that the typical camera uses lighting equipment. Night vision cameras will allow you to see in the dark sing infrared light.\nKinds of Night Vision Technology\nThere are 2 kinds of night vision technology. The first one works on image enhancement principle. This works through collecting the smallest amount of light that’s available from man-made or natural sources and amplifying this to the point where the objects may be viewed. It also collects light from the infrared light spectrum’s lower end, which is imperceptible to one’s eyes.\nThe other night vision technology works through a process called thermal imaging. This works through capturing the infrared light spectrum’s upper end. This part is emitted in the form of heat compared to what most of you have thought. The warmer the object is, the higher amount of the light is being emitted.\nNight vision cameras offer high quality color video during daylight. Once the light level drops below a particular point, the security camera will switch to IR automatically or infrared night vision videos. If the light level has increased to a particular point, the camera will switch back to color video automatically.\nNight vision cameras utilize some various techniques in producing photos. One may use reflected light view a photo and the other utilizes thermal energy that is produced by a viewed object. Both kinds are used in different jobs including hunting, security, warfare, and fishing. The latest technology was very expensive for average consumers in 1970s, yet a decade after, the sensors became available at cheap rates, which are enough to find their way into numerous applications. Knowing the main difference between the 2 kinds enables the most ideal choice for a certain application.\nThermal Light Night Vision Cameras VS Reflected Light Night Vision Cameras\nGenerally, every camera uses reflected light. The light doesn’t have to be in visible spectrum though and this enables other night vision cameras to use light invisible to the normal eyes. Some cameras also use heat waves.\nProjected Infrared Night Vision Cameras\nSeveral cameras project a beam of IR or infrared light at the target. Then, the sensor records an image. Since human eyes can’t see in this kind of light spectrum, this camera will translate an image to a visible one. Unless the camera records videos, IR works only on the actual photo. It’s the same with flash photography. Since infrared isn’t on continuously, this saves some of the device’s battery life. Cameras that are set along the game trails can easily capture animals at night use infrared capabilities.\nLow Light Night Vision Cameras\nNight vision cameras capture available light better than the typical cameras you see in the market. This type of camera needs nothing more than ultra-sensitive sensors that capture even the slightest amount of reflected light from the objects. Even the faint starlight works very well. Majority of night vision cameras work off in accordance to this principle. If the camera is low light, this utilizes this kind of method and considered as the most affordable choice.\nThermal Night Vision Cameras\nEvery object gives off heat. Thermal cameras record the differences in very small amounts of heat from an object. Technically, the thermal cameras aren’t really a camera, yet the direct view of what the sensors are recording. When compared to IR and low light night vision cameras, these haven’t found their way to daily consumer use. People who require precise viewing because they don’t depend on opposed to work, favor the thermal night vision cameras. People in black clothing and stand against a black background appear perfectly on thermal images.\nSome Considerations to Take Note for Night Vision Cameras\nYou have to take note that low light night vision cameras work better with ambient light. A lot of light including at sunrise or sunset poses issues. Cloudy nights without nearby streetlights or some lighting renders them useless. When compared to flash photography, the infrared cameras are limited in the distance they capture photos.\nThe Bottom Line\nNight vision cameras are the best way to monitor or keep track of your property in the dark. Both IR and low light night vision cameras work during day and night to gather photos. IR cameras outperform a low light camera under an inclement weather. Thermal camera setup is more expensive, yet does a better job in spotting the intruders of all kinds. The picture from IR or low light cameras identifies an individual or some objects where thermal pictures cannot.\nThe prices and features of night vision cameras may vary from one manufacturer or brand to another. Depending on what kind of night vision camera you need, pick the camera that will meet your requirements and would offer you satisfaction.","domain":"optical_engineering"}
{"url":"https://clubdeportivomerlo.com/panasonics-first-box-style-mirrorless-camera-is-meant-for-videographers-12155/","date":"2021-06-18T11:10:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487636559.57/warc/CC-MAIN-20210618104405-20210618134405-00327.warc.gz","language_score":0.933847963809967,"token_count":157,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__129787083","lang":"en","text":"Panasonic has unveiled its first box-style mirrorless camera. The LUMIX BGH1 is based on the Micro Four Thirds system. Panasonic designed the camera with various video production needs in mind, including multicamera setups, drone use and livestreaming.\nThe LUMIX BGH1 has a Power over Ethernet+ connector, meaning you can use the same cable to both power it and connect it to a network, though you can still use AC power. The camera boasts a 10.2-megapixel sensor. It can capture 10-bit Cinema 4K footage at 4:2:0 quality levels at up to 60 frames per second or up to 30 fps at 4:2:2. The system also supports full HD filming at up to 240 fps.","domain":"optical_engineering"}
{"url":"http://www.kisantools.co.in/5w-sprayer-led-bulb-4502132.html","date":"2020-12-01T17:48:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141681209.60/warc/CC-MAIN-20201201170219-20201201200219-00437.warc.gz","language_score":0.9301345944404602,"token_count":146,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__199000582","lang":"en","text":"Utilizing our full-fledged manufacturing caliber, we have made available a top notch quality 5W Sprayer Led Bulb. This is a low power consuming bulb which utilizes an array of LEDs (light emitting diodes). LED is a junction diode that produces a coherent beam of light of the specific wavelength. The provided bulb is widely appreciated owing to its durability, and cost-effective price. It high lumen light does not cause to increase the heat of the surrounding, and therefore, is a perfect bulb for maintaining the temperature. Apart from this, 5W Sprayer Led Bulb can withstand voltage fluctuations and also, it has got the capability to provide a constant beam of light at the relatively low voltages.","domain":"optical_engineering"}
{"url":"https://en.clinicways.com/main/eye-surgeries/lasik-eye-treatment","date":"2021-09-19T02:02:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056656.6/warc/CC-MAIN-20210919005057-20210919035057-00012.warc.gz","language_score":0.9098267555236816,"token_count":250,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__18559431","lang":"en","text":"What is LASIK eye surgery?\nLASIK is a treatment method that eliminates refractive errors such as myopia, hyperopia or astigmatism with excimer laser, an advanced and reliable technology. In LASIK treatment, a thin corneal flap is opened from the corneal layer of the eye with the help of a special automatic device called a microkeratome. After opening the flap, the refractive error is corrected under the guidance of a computer program with an excimer laser and the flap is folded back.\n- Who is LASIK eye surgery used on?\n- Who can't have LASIK surgery?\n- Is the LASIK laser method safe?\n- What should be considered before the LASIK operation?\n- Femto LASIK eye surgery operation day\n- Femto LASIK surgical process\n- What are the early postoperative symptoms and what should be considered?\n- Return to everyday life after Lasik eye surgery operation\n- What problems and complications can arise after LASIK laser surgery?\n- What are the advantages and disadvantages of the LASIK laser?\nSome people just need to express their thoughts and can’t stop","domain":"optical_engineering"}
{"url":"http://miamivideo.us/shop/lighting/led-shadow/","date":"2021-09-18T13:45:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056476.66/warc/CC-MAIN-20210918123546-20210918153546-00181.warc.gz","language_score":0.8605982661247253,"token_count":417,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__159000061","lang":"en","text":"The CHAUVET DJ LED Shadow is a blacklight LED panel designed to create wide ultraviolet color washes. Use to enhance the appearance of white or fluorescent colors with a supernatural glow. It is well suited for clubs, performance stages, theatrical productions, and special-effects installations.\nThe LED Shadow features 192, UV (ultraviolet) LEDs with a wide, 28° coverage angle. It is equipped with mounting brackets, which can be adjusted to help achieve the desired position when mounting the fixture on walls, ceilings, or on the ground for wall washing.\nEasy to use, the LED Shadow can operate in standalone mode with eye-catching programs such as Sound-Active, variable-strobe, and dimming. It can also be controlled via DMX or wirelessly with the IRC-6 remote (available separately). The Master/Slave mode enables you to synchronize multiple fixtures without the need for a controller.\nThe unit features an LED display with a 4-button menu for easy navigation and an auto-ranging universal power supply. You can also daisy-chain power for up to 43 fixtures at 120V, or 74 fixtures at 230V.\n- Black light panel with 192 UV LEDs for wide ultraviolet color washes\n- Ideal for performance stages, theatrical productions, and special effects installations\n- 28° coverage angle\n- 0-100% dimming\n- Strobe effect\n- Dimensions (L x W x H): 14.0 x 9.8 x 6.5″\n- Auto-run, sound active, UV dimmer, built-in program, DMX-controlled\n- Easily adjust flash rate, dimmer, and static effects in standalone mode\n- Master/Slave operation\n- Daisy-chain power for up to 43 fixtures at 120V\n- 4-button LED display on rear panel\n- Compatible with IRC-6 wireless remote (available separately)\n- Universal auto-ranging power supply\n- Includes hanging bracket with mounting hardware to hang fixture on truss or mount on a wall","domain":"optical_engineering"}
{"url":"https://www.hifi-profis-da.de/en/shop/all-products/home-theater/projectors/epson-eh-ls11000w/","date":"2023-03-24T22:18:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945289.9/warc/CC-MAIN-20230324211121-20230325001121-00592.warc.gz","language_score":0.7087330222129822,"token_count":788,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__293701562","lang":"en","text":"Ultimate image quality\nEnjoy a perfect home cinema- with this powerful projector with 4K resolution. Epson’s 3LCD technology delivers an equal white/color brightness of 2,500 lumens and natural, vivid and powerful colors. HDR10+ support provides detailed images with more depth and by enhancing colors, projected content appears more natural, intense and therefore more expressive.\nIn addition, with a high contrast ratio of 2,500,000:1, the projector offers deep blacks and displays dark areas in incredible detail. With 4K frame interpolation, 4K Super Resolution, and automatic gamma correction and contrast optimization, you’ll enjoy the ultimate home cinema.\nThe long-life laser light source features lower power consumption and provides up to 10 years of maintenance-free entertainment.\nSimple and reliable\nA home cinema should not be more complicated to operate than a television. Installation of the projector is easy and precise thanks to the motorized optics, 2.1x optical zoom, focus and lens shift function for ±96.3% vertical and ±47.1% horizontal.\nSave up to ten different image formats. This way, you can easily view your content with the right aspect ratio without having to set up for a long time. The projector is also compatible with Calman color calibration software.\n- Razor-sharp projection: 4K resolution (8.3 million pixels) and HDR10+ support\n- Fast, smooth action scenes: 4K frame interpolation and 4K Super Resolution\n- Long-lasting solution: Profia laser light source for up to 10 years of entertainment¹.\n- Fully motorized optics: motorized zoom, focus and lens shift function\n- Wide lens shift range: Vertical ±96.3% and horizontal ±47.1\n|Projection system||3LCD technology, RGB liquid crystal shutter|\n|LCD panel||0.74 inch with C2 Fine|\n|Color brightness||2,500 lumens|\n|White brightness||2,500 lumens|\n|Resolution||4K PRO-UHD, 16:9|\n|High definition||4K amplification|\n|Contrast ratio||2.500.000 : 1|\n|Light source||72 mW 20,000 hours durability, High, 20,000 hours durability, Medium, 20,000 hours durability, Eco|\n|Keystone correction||Manual Vertical: ± 30 °, Manual Horizontal ± 30 °|\n|Video editing||10 bits|\n|2D/3D frequency image||384 Hz / 480 Hz|\n|2D vertical refresh rate||384 Hz – 480 Hz|\n|Color rendering||up to 1.07 billion colors|\n|Projection ratio||1,35 – 2,84:1|\n|Zoom||Motorized, Factor: 1 – 2.1|\n|Lens Shift||Motorized – Vertical ± 96.3%, Horizontal ± 47.1%|\n|Memory for lens position||10 positions|\n|Projection screen||50 inch – 300 inch|\n|Projection distance wide angle/tele||3 m – 6.4 m ( 100 inch screen)|\n|Projection lens F||2 – 3|\n|Focal length||22.5 mm – 46.7 mm|\n|Connections||USB 1.1 Type A (2x), USB 2.0 Type Mini-B, RS-232C, Ethernet interface (100 Base-TX/10 Base-T), trigger output, HDMI ARC, HDMI (HDCP 2.3) (2x)|","domain":"optical_engineering"}
{"url":"http://informnauka.ru/eng/2008/2008-10-24-8-071_e.htm","date":"2018-04-20T20:31:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125944682.35/warc/CC-MAIN-20180420194306-20180420214306-00102.warc.gz","language_score":0.9652190208435059,"token_count":1042,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__29167847","lang":"en","text":"A unique technology for profiled sapphire crystal growth has been developed by the scientists from the Institute of Solid Physics, Russian Academy of Sciences (Chernogolovka). The profiled crystals means the ones of assigned profile, i.e., of any shape and of almost any size, at any case, from superfine hollow capillaries through massive crystals, which are almost ten centimeters thick. This is extremely important to oncologists and to physicians in general, because sapphire capillaries and optical fiber enable to make laser therapy and diagnostics much more efficient and less traumatic than it is now with employment of quartz and polymer optical fiber. The technology developed and being patented by the authors enables to grow from the melt ideally straight solid sapphire tubules (capillaries), which are up to 30 centimeters long. The interior diameter of such a capillary is less than 1 millimeter, and exterior diameter is 1.2 millimeters. These are exactly the ones needed to physicians.\nThus, to begin with, here comes a briefing for those who fortunately have never heard about laser application to tumor diagnostics and therapy. The main point is that the optical fiber (thin light guiding fiber) is brought to the tumor located not on the surface but in the depth of the body. Laser of a certain wavelength generates irradiation, which is forwarded to the tumor via the optical fiber. Then the tumor should be looked at, i.e., it is necessary to capture the light reflected from the tumor, which would come back via the same optical fiber, or more or less powerful irradiation should be fed. Irradiation will either kill or burn out the tumorous tissue, or it will affect the substance preliminary injected into the tumor, which is able to decompose under the influence of irradiation accompanied by heat release (the so-called photodynamic therapy).\nNow, quartz is the most popular material for optical fiber (polymer light guides are also being used but they fall out quickly). However, it is not deprived of drawbacks either, the main one being the ability to interact with biological tissues and blood. As a result, it is possible that healthy tissue would burn and irradiation parameters would change. This is no good – as the light intensity and wavelength should be strictly controlled under photodynamic therapy.\nThe light guide per se is a superfine and very fragile fiber (its diameter making 500 to 600 microns), therefore, to avoid its breaking when piercing the skin it has to be placed into the syringe needle, which serves a casing for the light guide.\nSo, the authors have suggested that the light guide casing or cover should be made of sapphire – in the form of a capillary, provided at the end with a solid “lance” sharpened at a required angle or, vice versa, with a spherical nozzle. Sapphire light guides are suggested because the properties of this crystal fully comply with the needed requirements. Sapphire is a very hard, durable and chemically inert material, and it transmits light very well in a very wide spectral range.\nThe technology developed by the researchers is based on the old method of crystal growth from the melt. The fuse of a required shape is put into the melting-pot containing the melt and is stretched out very slowly. This is done slowly so that the atoms had enough time to line up in a “correct” order, and the cooled article became a crystal but of a reassigned shape. However, it is very difficult to obtain at the output the tubules with superfine even walls along the full length and an ideally smooth surface. If the temperature is a bit higher or if a minor failure occurs in the speed – the capillary would “stick together”. Nevertheless, a group of researchers under the guidance of Vladimir Kurlov, Doctor of Science (Engineering), have succeeded. The technology developed by them and enriched by a lot of original “inventions” enables to solve the problem as well as many others. For example, to stretch out several dozens of capillaries at once during a single process.\nIn principle, physicians did like the concept of such sapphire casing as it allows to make multi-purpose interstitial irradiators, which almost do not traumatize the patient. The only thing that disturbed them was fragility of a capillary, which is, of course, not as durable as a suture needle. “A problem was posed for us to solve – to test the capillary on a piece of lard with skin, says Vladimir Kurlov. We were to try to pierce through the lard at least at the depth of 2 centimeters and to bend it so that to check at what angle of bending the capillary would break. The outcome was a pleasant surprise: the capillary easily penetrated the sample and broke only when it was bent at a 40-degrees angle. So, physicians are pleased with mechanical properties of the capillaries. There are no doubts that such quartz light guides in sapphire casing would not yield to traditional light guides in terms of efficiency.”","domain":"optical_engineering"}
{"url":"https://www.vmbandassociates.com/forum/business-forum/operator-manual-bv-300-philips","date":"2023-10-03T13:17:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511106.1/warc/CC-MAIN-20231003124522-20231003154522-00549.warc.gz","language_score":0.9005301594734192,"token_count":306,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__276998389","lang":"en","text":"The BV300 PCI (Mini Accessory Card) transmits and receives according to the operating frequency specified by the user and according to the power supplied by the battery. The device can be used as a portable or fixed ultrasound device, as well as an X-ray machine. When working as an X-ray device, adjustments must be made at program start using the keyboard. This is described in the BV300 Operator's Manual.\nThe BV300 features the Tri-Mode image intensifier, a CCD (Charge Coupled Device) camera, a high capacity 200 frame buffer, a maximum frame rate of 100 frame per second, a high quality code 10-bit image acquisition system, a fast high quality digital image processing image processor, and a compact desktop antenna system. It has 200 frames memory, hard copy device and laser alignment. We offer philips BV-300 at competitive prices.\nThe Philips BV300 contains the Tri-mode image intensifier, a CCD camera, and a 200 frame buffer. This high quality code 10-bit image acquisition system is based on a high performance image processor. It has 20 pre-set program mode for automatic composite imaging using the camera and the board. The high speed processor with 64 kB Flash memory, allows the frame rate at 100 frames per second. It also has a card reader that can enlarge the digital images stored in a regular card reader. We offer philips BV-300 at competitive prices. d2c66b5586","domain":"optical_engineering"}
{"url":"https://vi.qupqukj.id/i/Sell-Fuwisuy-New-RGB-%C3%81nh-S%C3%A1ng-S%E1%BB%A3i-Quang-Ngu%E1%BB%93n-1-PCS-2-PCS-4-PCS-%C3%81nh-S%C3%A1ng-%C4%90%E1%BA%A7u-DC12V-Xe-Quang-S%E1%BB%A3i-%C3%A1nh-s%C3%A1ng-Ch%E1%BB%A7-1-5mm-%C4%91%E1%BA%BFn-6mm-C%C3%A1p-v%E1%BB%9Bi-T%E1%BB%AB-Xa/Yiwiqi-32987698158.html","date":"2023-03-26T21:27:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296946535.82/warc/CC-MAIN-20230326204136-20230326234136-00512.warc.gz","language_score":0.7577289938926697,"token_count":407,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__188096203","lang":"en","text":"New RGB Ánh Sáng Sợi Quang Nguồn 1 PCS/2 PCS/4 PCS Ánh Sáng Đầu DC12V Xe Quang Sợi ánh sáng Chủ 1.5mm đến 6mm Cáp với Từ Xa\nNew RGB Optic Fiber Light Source 1PCS/2PCS/4PCS Light Heads DC12V Car Optic Fiber Light Holder 1.5mm to 6mm Cable with Remote\nIdeal Mini Super Light Source for car Perimeter Decoration\nPower: 2W for each light head\nWork voltage: Constant DC12V Input\nLighting Color: RGB\nRemote: 24 keys IR remote controller\nRemote mode: static single color (Red ,Green, Blue, Yellow, White ,Ice blue, Pink, etc)& RGB light changing (flash, fade, jump) & Adjust the brightness\nFiber head inner diameter: can work with side glow fiber with dia 1.5mm-6mm\nThe minimum diamter of the hole is about 4mm, If you use it with 1.5mm-3.0mm fiber cable, you need to wrap the fiber cable with black tape, make the diamter thickness to about 4mm. Or you can put 2pcs 2.0mm fiber cable in the same hole.\n1 set * RGB fiber optic light illuminator\nThis product does not include side glow optical fiber cables, we have fibers with dia from 1.5 mm - 14 mm in different lengthes, please feel free to buy.\nPhotos from our clients' cars:\nModel Number : DS-CFL-02\nBrand Name : dsyshinelite\nItem Type : Optic Fiber Lights","domain":"optical_engineering"}
{"url":"https://b2bmit.com/showroom-9036975/2.htm","date":"2020-04-06T22:03:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371660550.75/warc/CC-MAIN-20200406200320-20200406230820-00372.warc.gz","language_score":0.8634300231933594,"token_count":419,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__50113073","lang":"en","text":"|Company Introduction :||Total Solution Provider|\nDongguan Liansi electronics Co. Ltd is specilized in manufacturing Braided expandable sleeves,connector series and Optical Fiber cables more than 7 years. Overall our products are compliant UL, ROHS, ISO9001:2008 systerm. low-smoking and Halogen free approvals. We also can offer trade services for customers from all over the world\nOur Commitment to Design and Development\nIndependent mould department and strong R&D team .From the design of new products to the re-engineering of existing products for quality improvement or cost reduction, our engineering team is capable of meeting our customers' requirements.\nPlastic injection, molding, automatic assembly equipment and automatic train lines.\nOptical fiber department produce fiber optic cable, optical connector and cable assembling with lower cost.Hold hundred sets of high-speed braid machines which can do colorful, multi-patterns ,multi-specs sleeve. (2MM-150MM) .\nSample lead time:0.5-3 days\nCompany development profile\nJan , 2003, Liansi Company established and started to produce expandable\nMay 2005, Liansi added connector department to design and produce SATA series connector and USB series connector and 1394 connector series.\nFeb 2007, Liansi added cable department to produce cable.\nJun 2008 , Liansi added international trade department to export products to overseas markets.\nMarch 2009, Liansi eastablised a branch factory to produce sleeve for overseas customer. And also eastablished a mold factory.\nSep 2010, Liansi added optical fiber department and start to design and produce optical fiber connector and optical fiber .\n|Main Products :||expandable sleeving,fishing rod sleeves,IEEE1394 connectors,usb connectors,optic fiber,ATX cable,usb 3.0 connectors,cable sleeves,plastic optical fiber,1394 9p connecotors|\n|Business Nature :||Manufacturer, Trading Company|","domain":"optical_engineering"}
{"url":"http://hilumzusa.com/","date":"2016-08-25T00:51:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-36/segments/1471982292697.31/warc/CC-MAIN-20160823195812-00273-ip-10-153-172-175.ec2.internal.warc.gz","language_score":0.8052630424499512,"token_count":370,"dump":"CC-MAIN-2016-36","global_id":"webtext-fineweb__CC-MAIN-2016-36__0__89399441","lang":"en","text":"Multipurpose & Economical! Available in 80W, 120W, 150W & 240W versions PLUS 120W Direct AC. Replace from 250W up to 750W metal halide fixtures. Complete range of mounting options for street and parking lots, high bays, wall packs and area lighting. learn more…\nRetrofit Instructional Video Series\nSee how simple it is to retrofit your existing light fixtures. We are also available to answer any questions that you may have.\nWatch Our Videos on YouTube\nThere are multiple versions of LED kits available – 35W, 75W, 130W, 185W & up to 370W. Engineered for performance and longevity, Diamonz technology surpasses the competition. learn more…\n10 Year LED & 7 Year Driver Warranty\n100,000+ Hour Rated CREE LEDs\nAC LED 10 Year Warranty\nThe HiLumz Difference…\nMade in the USA & DLC Qualified!\nOur newest DZ3X, DZ130 and DZ185 are now available!\nEven more powerful than our original LED kits, the Diamonz series of products feature:\n- Latest technology CREE LEDs – brighter and longer lasting;\n- EXTREME thermal efficiency circuit boards. Typical LED board: 1-5W/mK transfer. Diamonz board: an astounding 200+W/mK! Lower LED temps = longer life & more light;\n- DZ3X – same light output as old DZ40, but 33W instead of 45W and no cooling fan;\n- DZ130 and DZ185 – airflow shroud for improved cooling and more versatile mounting options;\n- DZ130 and DZ185 – Type III, Type V (bat wing), 31 degree and 56 degree optics kits;","domain":"optical_engineering"}
{"url":"https://www.prodigyonedoo.com/product/fujifilm-16642939-x100v-digital-camera-silver/","date":"2023-11-28T13:01:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099514.72/warc/CC-MAIN-20231128115347-20231128145347-00574.warc.gz","language_score":0.8713563680648804,"token_count":772,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__3454414","lang":"en","text":"From the manufacturer\nClassic and Intuitive Controls\nThe analog inspired controls of the X100 Series are one of its most defining characteristics. The use of dials for exposure compensation and shutter speed provide a purely tactile experience and contribute considerably to making the image making process an immersive and enjoyable experience.\nX-Trans CMOS 4 sensor and X-Processor 4 combination\nAt the heart of X100V is the state-of-the-art X-Trans CMOS 4 sensor and X-Processor 4 combination. This exceptional 26.1MP sensor uses a back-illuminated design to maximize quality and dynamic range, while its unique color filter array controls moiré and false color without the need for an optical low pass filter. Such outstanding imaging capability is complemented by the quad-core X-Processor 4. This powerful CPU not only ensures images are quickly and smoothly processed, but thanks to a new algorithm, boosts AF performance with precision face and eye detection right down to -5EV.\nFilm Simulation Options\n- Provia (Standard)\n- Velvia / Vivid\n- Astia / Soft\n- Classic Chrome\n- Pro Neg. Hi, Pro Neg/ Std, Classic Neg\n- Eterna / Cinema\n- Acros: Std, Ye, R, G\n- Monochrome: Std,Ye, R, G & Sepia\nA Legacy in Color Science\nFujifilm’s heritage in color science has given it legendary status among image-makers across the world. During its 85 years in the industry, Fujifilm has been responsible for some of the most iconic photographic films in history and this knowledge has been poured into its collection of 17 digital Film Simulations. This cutting-edge technology allows photographers to achieve stunning results.\nSee the world differently\nX100V has a vastly improved hybrid viewfinder which enables image-makers to quickly and easily choose between the 0.52x magnification optical viewfinder (OVF) or the 3.69M dot OLED electronic viewfinder. Offering 95% frame coverage, the OVF provides parallax-correcting frame lines to give an uninterrupted view of the world as it is, while the camera’s EVF delivers a real-time representation of the image as it is being made.\nThe EVF uses an extremely bright 1500cd/㎡ high-luminance panel, so images can be made easily even in bright conditions. Highlight and shadow details are more visible thanks to the EVFs higher resolution display, ensuring that images are made exactly as they are seen.\nThe Electronic Range Finder (ERF) Function, blends the OVF and EVF are together to provide a unique experience. You can see an electronic preview of the scene in the bottom right corner, while still framing the image using the OVF.\nA blending of form and function\nThe two-way tilting LCD touchscreen hides in the back of the camera and adds another first for the X100 series as it provides intuitive touch controls, unlocking even more possibilities for image-makers to see, frame, and create.\nHigh-resolution video recording\nX100V offers the ability to record 4K video up to 30 frames per second or capture 120 frames per second at 1080p to create super slow motion effects. Filmmakers needing extreme color fidelity can record 10-bit, 4:2:2 color externally via the HDMI port and leverage Fujifilm’s advanced color reproduction technology, to apply Film Simulations, like Eterna, to their video footage. Additionally, image makers can also incorporate numerous shooting functions, such as “Monochromatic Color” to extend their creative visions directly to the footage being recorded.","domain":"optical_engineering"}
{"url":"https://cssm.northwestern.edu/research.html","date":"2023-02-07T07:46:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500392.45/warc/CC-MAIN-20230207071302-20230207101302-00312.warc.gz","language_score":0.9015668630599976,"token_count":1361,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__142757841","lang":"en","text":"Nature has successfully integrated multiphase components at multiple scales to create remarkable functional devices. The mammalian ear is an example of a nonlinear electro-chemo-mechanical device that integrates multiphase components at multiple scales. The result is a remarkable sensor with large dynamic range (through a possibly active nonlinear amplifier) and exceptional frequency discrimination (through frequency-selective wave localization). The fundamental premise of this research effort is that such multiscale multiphase integration is essential for engineered systems to exhibit functionality beyond what is currently achievable.\nTwo-photon 3D Printing\nTwo-photon lithography is useful for creating sub-micron scale 3D polymer structures. At CSSM, we have a commercial system from Nanoscribe that is used to create complex 3D structures in a wide range of projects in collaboration with several groups at NU and beyond. Applications include micro-optofluidic devices, metamaterials, and polymer micro-optic sensors.\nMulti-Photon Direct Laser Writing\nAssisted Surface Nanopatterning\nWe are developing stimuli-responsive polymeric materials for both 3D printing and 2D assisted surface patterning.\nStimuli-Responsive Polymers for 3D Microstructures\nIn this work, we are investigating several azobenzene-functionalized polymers to identify suitable resists for direct laser writing of 3D microstructures using two-photon polymerization. These resists must retain the azobenzene trans-cis transformation for subsequent single-photon optically triggered reconfigurability. Applications to reconfigurable 3D micro-optofluidic systems are being developed.\nOptically Active Polymers\nIn this work, we are investigating several optically-active nanoparticles for integration into photoresists that enable fabrication of active micro-ring resonators and polymer optical amplifiers. Applications to sensing systems are being developed.\nMetamaterials for photonic and phononic control are being investigated both theoretically and experimentally.\nShape Memory Polymers for Assisted Surface Nanopatterning\nWe have developed shape-memory polymers for use in the fabrication of complex 3D structures. We have also developed systems for assisted surface nano-patterning. Thermomechanical response of shape memory polymers has been modeled using a physics-based two-phase model that has been integrated into large-deformation finite-element codes.\nSmart Structures are structures that have integrated sensing capabilities, may offer unusual properties by virtue of their geometric or material design, or may offer the possibility of reconfigurability in response to external stimuli. We are developing fiber-optic and micro-optical sensors that can be intergrated into structures.\nMesoscale Integrated Optical Systems\nIn this project, we are developing Mesoscale Integrated Photonic Systems (MIPS) aimed at making photonic sensor systems robust enough to be integrated into real structures. The sensors are fabricated using two-photon lithography. We are developing polymer waveguide-based rigid and flexible MIPS and demonstrating their utility as strain and chemical sensors.\nFiber-Optic Chemical Sensors\nWe are developing chemical sensors based on nanocoated photonic crystal fibers that exhibit enhanced sensitivity and selectivity.\nFiber-Optic Dynamic Strain Sensors\nWe are developing fiber-optic dynamic strain sensors that are adaptive to quasistatic drift. These systems integrate two-wave mixing spectral demodulators with adaptive-sources to provide multiplexed sensing for acoustic emission and impact detection.\nGraphene-Based Thin Film Sensors\nWe have developed graphene-oxide thin film chemical sensors for humidity detection. We have also developed graphene-based strain sensors with gage factors that are 3 orders of magnitude higher than conventional foil strain gauges.\nPhotoacoustic techniques are a subset of ultrasonic methods wherein laser generated stress waves are used to obtain information about structural and material properties. In photoacoustic techniques, the ultrasound is typically also detected using non-contact optical detection, thereby enabling truly non-contact nondestructive characterization of the material properties of structures. Photoacoustic techniques have found application over length scales ranging from macro-structures to nanometer-sized thin films and coatings.\nPicosecond Ultrasonics at the Nanoscale\nLaser-Ultrasonic Sensing of Additive Manufacturing Processes\nPhotoacoustic Characterization of Thin Films\nPhotoacoustic Characterization of Defects\nPhotoacoustic methods can be used for ultrasonic defect imaging in structures such as turbine blades, GLARE composites, etc. The traditional mode of application of laser ultrasonics for defect imaging parallels conventional pitch-catch ultrasonic inspection mode, except that lasers are used to generate and detect the ultrasound. For detecting very small defects, the pitch-catch technique requires that the scatterrer reflect a significant fraction of the incident wave, and furthermore that the generating and receiving locations be in line and normal to the scatterrer. In our labs, we have developed a novel Scanning Laser Source (SLS) technique for detecting very small near surface scatterrers that are arbitrarily oriented with respect to the generating and detecting directions. The SLS technique has no counterpart in conventional ultrasonic inspection methodologies as it relies on near-field scattering and variations in thermoelastic generation of ultrasound in the presence and absence of defects. In the SLS technique, the ultrasound generation source, which is a point or a line-focused high-power laser beam, is swept across the test specimen surface and passes over surface-breaking flaws (see figure). The generated ultrasonic wave packet is detected using an optical interferometer or a conventional contact piezoelectric transducer either at a fixed location on the specimen or at a fixed distance between the source and receiver. The ultrasonic signal that arrives at the Rayleigh wave speed is monitored as the SLS is scanned. It can be seen that the amplitude and frequency of the measured ultrasonic signal have specific variations when the laser source approaches, passes over, and moves behind the defect.\nStructural Health Monitoring\nIntelligent Structural Health Management systems facilitate taking timely remedial actions in order to prevent catastrophic structural failure by incorporating diagnostic sensor data for closed-loop prognosis of remaining structural integrity. We are developing both diagnostics tools for SHM (described under Smart Structures) as well as probabilistic prognostic tools to assess the structural integrity of safety-critical structures.","domain":"optical_engineering"}
{"url":"https://echomasaz.pl/17470-silicon_carbide_uv_photodetector_in_denmark.html","date":"2021-06-13T23:08:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487611089.19/warc/CC-MAIN-20210613222907-20210614012907-00341.warc.gz","language_score":0.8323283195495605,"token_count":1889,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__160898931","lang":"en","text":"Silicon carbide (SiC) is emerging as a potential material for harsh environment appliions owing to its superior electrical and mechanical properties, as well as excellent chemical inertness. Among more than 200 polytypes, single crystalline cubic silicon carbide (3C\nThe photodetector with a high UV-to-visible rejection ratio of up to 1 × 10 5 exhibits a low dark current of <2 pA at room temperature under 10 V bias. The photo-responsivity of the photodetector gradually increases as a function of applied bias, resulting in a photodetector quantum efficiency exceeding 100% at above medium bias.\nA nanocomposite ultraviolet photodetector based on interfacial trap-controlled charge injection Fawen Guo, Bin Yang, Yongbo Yuan communiions and defence1, and are typically made from single-crystalline silicon, silicon carbide or gallium nitride p–n for\nBitte verwenden Sie diese Seite um mit uns Kontakt aufzunehmen. Füllen Sie die leeren Felder mit Ihren persönlichen Angaben aus und teilen Sie uns Ihr Anliegen mit. Wir leiten Ihre E-Mail an den für Ihre Anfrage zuständigen Mitarbeiter weiter.\n2002/10/29· The specific new silicon carbide photodiode upon which in accordance with the present invention the subject silicon carbide photodiode based flame scanner is predied is advantageously characterized over the ultraviolet (UV) tube in that the output signal of the\nare based on a Silicon Carbide (SiC) UV photodiode, which guarantees highest radiation hardness, long term stability and >10 10 visible blindness (ratio of UV to VIS-IR sensitivity). Blue and GaP type sensors are based on a Galliumphosphide (GaP) UV\n2020/8/13· Description: Silicon carbide SiC photodetectors / photodiodes have a spectral response of approximately 210 – 380 nm and are not sensitive to UV radiation outside this region. This makes them ideal detectors in certain appliions for monitoring the UV spectrum without the need for solar\nSilicon carbide powder is used as an abrasive for such as grinding wheels, whetstone, grinding wheel, sand tiles etc.. Silicon carbide is used to produce epitaxial graphene by graphitization at high temperatures. It is also acts asthe metallurgical deoxidizer material.\n2020/8/17· Poor sensitivities and low efficiency undermine the performance of ultraviolet (UV) sensors deployed in diverse appliions. Efforts by an international research team to boost photodetector performance have documented a 130% external quantum efficiency (EQE) value for black silicon induced-junction photodiodes.\nDetectors used in optics and photonics appliions are available at Edmund Optics We have set your country/region to United States You can change this selection at any time, but products in your cart, saved lists, or quote may be removed if they are unavailable\nElectrical and Thermal Simulators for Silicon Carbide Power Electronics Akin Akturk, Zeynep Dilli, Neil Goldsman, Siddharth Potbhare, James McGarrity, Brendan Cusack,Cissoid Neptune CHT-PLA8543CMOSFET y 10 1200 30 Cree C2M0025120D MOSFET y 90\nProperties of the TOCON_A9 • UVA-only SiC based UV photodetector in TO5 housing with attenuator • 0 … 5 V voltage output • wavelength at 331 nm • max. radiation (saturation limit) at is 1,0 W/cm2, minimum radiation (resolution limit) is 100 µW/cm2\nMazzillo, D. Sanfilippo, and G. Fallica, “Responsivity measurements of silicon carbide Schottky photodiodes in the UV range,” in Third Mediterranean Photonics Conference, (IEEE, 2014), pp. 1–3 18. G. Graerg, “Temperature dependence of space charge1419.\nThe nascent semiconductor material, silicon carbide, has found widespread appliion in power electronics. However, its advantageous properties as an optoelectronic detector device in the UV range (transparency to visible light and very low dark current, both results of its very wide bandgap) have not been utilized widely.\n1971 Photodiodes from 48 manufacturers listed on GoPhotonics. Search by specifiion. Page-2 56 photodiodes Photodiodes sphotodetector_type:expand,sphotodiode_material:expand,spackage_type:expand,soperation_mode:expand,sschannels:expand\nThe latest silicon carbide news, features, products, and more from Photonics Media Menu Photonics Media Buyers'' Guide UV Sanitizer Wand GTX Corp. UV-Enhanced Photodiode Opto Diode Corporation Artificial Intelligence Software IDS Imaging view all\n2 · Coining all these features of the black silicon helped the photovoltaic device to achieve the external quantum efficiency of above 130% in the UV range without any external amplifiion.\nTheir n-n−-p Si Carbide avalanche photodiode exhibits high responsivity at wavelengths shorter than 280 nm, gain and low dark current at high reverse bias, just short of avalanche breakdown. As a result, these devices are ideal for realizing a highly sensitive SPAD in the deep ultraviolet spectrum (λ<260 nm) for the first time, based on Si carbide\nCree has added to its considerable intellectual property portfolio with the purchase of patents and other IP from ABB.\n2020/8/8· The run up to the new academic year has been very time-intense, so unfortunately blogging has correspondingly been slow. Here are three interesting papers I came across recently: In this paper (just accepted at Phys Rev Lett), the investigators have used micro/nanostructured silicon to make an ultraviolet photodetector with an external quantum efficiency (ratio of nuer of charges generated\nDr Hoang-Phuong Phan is an ARC DECRA fellow at Queensland Micro and Nanotechnology Centre, Griffith University. His research interests cover a broad range of semiconductor devices and appliions, including silicon/silicon carbide MEMS/NEMS, integrated\n\"We believe that the demand for silicon carbide will truly start to accelerate around 2021 to 2022, so in my mind, now is the time to enter the market,\" he says. \"The market is still far from this inflexion point, when you see volumes ramping, but we are entering at scale and will …\nWe report a 4H-SiC PIN recessed-window avalanche photodiode with a responsitivity of 136 mA/W (external quantum efficiency = 60%) at lada = 262 nm, corresponding to more than a 50% increase in external quantum efficiency compared to nonrecessed structures. The dark current was 90 pA at a photocurrent gain of 1000. Avalanche gains of over 106, k ~ 0.1, and a spatially uniform response\nSilicon Carbide Wafers GaAs Wafer Ge(Germanium) Single Crystals and Wafers CdZnTe (CZT) Wafer III-V Nitrides Wafer GaN Wafer AlN/GaN/AlN heterostructures grown on Si substrate by plasma-assisted E for MSM UV photodetector appliions\nPhotodetector Type: PIN Photodiode Material: Silicon Wavelength Range: 940 nm Dark Current: 1 to 10 nA EOC SiC UV APD 1.45-QFN-16 Photodiode from Electro Optical Components Description: Silicon Carbide UV Avalanche Photodiode Avalanche SiC :\nLight absorption at the surface of a photodiode can be enhanced by employing nanostructures smaller than the wavelength of interest. In this study, a ZnO quantum dot (QD) coating layer was investigated for improving the light absorption of gallium nitride (GaN\nISR-affiliated Professor Neil Goldsman (ECE) and his colleagues were issued U.S. Patent No. 10,446,592 on Oct. 15, 2019 for “silicon carbide integrated circuit active photodetector,” a device that provides accurate, reliable measurement of ultraviolet (UV) radiation.\nCoolCAD Electronics has developed a patent-pending technology to design and fabrie Silicon Carbide (SiC) MOSFET opto-electronic integrated circuits (ICs). We both fully design and fabrie these SiC Opto-Electronic ICs in the U.S. using our own design methodologies, SiC process recipes and in-house fabriion facility.","domain":"optical_engineering"}
{"url":"https://crowcrowcrow.com/blogs/product-faqs/what-are-disadvantages-of-pocket-microscope","date":"2023-12-04T04:13:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100523.4/warc/CC-MAIN-20231204020432-20231204050432-00371.warc.gz","language_score":0.9160459041595459,"token_count":415,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__238122680","lang":"en","text":", by Admin . 10 Amazing Benefits of Colostrum for Newborns: Why Every Parent Needs a Colostrum Collector Syringe Set\n, by Admin . Which liquid blush is best?\n, by Admin . Navigating The Pink Eye Surge In India: Exploring Causes, Symptoms, Treatment, and Prevention of Conjunctivitis.\nExploring the Cons of Pocket Microscopes For Kids\nThe world of microscopy is fascinating, with its ability to unveil the hidden details of the world around us. Pocket microscopes for kids bring this fascinating world into the palms of their hands, literally. While these portable devices come with numerous advantages, it's also crucial to acknowledge and understand their limitations. Let's explore these in more detail.\nLimitations in Magnification:\nOne of the primary disadvantages of pocket microscopes is their limited magnification capability. A standard laboratory microscope can magnify objects up to 1000x or even more. In contrast, most pocket microscopes offer magnifications between 60x and 180x. While this range is sufficient for observing many specimens, it may not be enough for more complex scientific studies.\nLimited Field of View:\nPocket microscopes generally have a smaller field of view than full-sized ones. The field of view is the area visible through the microscope's lens. A smaller field of view may require more time and effort to examine an object fully, especially larger samples.\nSome pocket microscopes may lack the image clarity and resolution offered by full-sized laboratory microscopes. This disparity in image quality can impact the accuracy of observations, especially when examining intricate details.\nAbsence of Advanced Features:\nPocket microscopes, due to their compact and simple design, often lack advanced features like fine focus knobs, mechanical stages, or different objective lenses. These features, present in larger microscopes, can enhance the overall microscopy experience.\nWhile not a rule, some pocket microscopes may compromise on durability to maintain their lightweight and compact nature. It is essential to handle these instruments with care to prevent any damage.","domain":"optical_engineering"}
{"url":"http://oss.co.za/?page_id=54","date":"2022-07-01T08:49:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103922377.50/warc/CC-MAIN-20220701064920-20220701094920-00442.warc.gz","language_score":0.9041026830673218,"token_count":347,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__251933668","lang":"en","text":"Optical connectivity is the only guaranteed and reliable transport technology to overcome challenges in the last mile. Technologies such as ADSL and VDSL continue to be plagued by technological challenges such as cross talk and social-economic challenges such as cable theft.\nOSS Technologies is facilitating the next level of last mile telecommunications services through the promotion of open access and optical exchanges.\nOSS Technologies brings telecommunications expertise to the built environment to address the need for open access last mile fibre services.\nTelecommunications transmission and access networks architecture is a core field of expertise emanating from our telecommunications background.\nOSS Technologies helps architects, design-build firms, building owners and contractors plan, deploy and operate optical fibre infrastructure for support of open access fibre for buildings, estates and commercial zones.\n- Fibre network design\n- Business cases\n- Service Provider Relationship management\n- Maintenance relationship management\n- Legislation and compliance management\n- Tenant requirements management\nOSS Technologies has developed a methodology for the design, implementation and operation of optical fibre networks that includes:\n- Optical and Telecommunications Network design that includes type approval from Internet Service and Network Providers.\n- Fibre cabling design that considers the requirements of architects and property developers.\n- Open Access schemes that guarantees community members the ability to choose from multiple service providers at current (non-inflated) service costs\n- Optical exchange schemes that define relationships between owners, suppliers and maintenance teams.\n- Compliance to South African Telecommunications regulations\nDeregulation of telecommunications in South Africa have allowed for the introduction of dark fibre and similar ventures. OSS Technologies is uniquely positioned to address the need for fibre in the last mile and allow developers and tenants alike to benefit from optical fibre as an enabling technology.","domain":"optical_engineering"}
{"url":"https://www.satelbg.com/en","date":"2023-10-04T16:39:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511386.54/warc/CC-MAIN-20231004152134-20231004182134-00314.warc.gz","language_score":0.908236563205719,"token_count":243,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__80776917","lang":"en","text":"Satel BG produces observation, security, traffic and dome mirrors offered in different shapes and sizes. The materials we use to produce SATEL mirrors are high-quality, UV-stabilised acrylic sheets (Plexiglass XT).\nThe radius of convexity is controlled by laser – optic sensors, eliminating the possibility of image distortion and ensuring the stability of the production process.\nWe produce SATEL traffic mirror housings using impact resistant polystyrene, which is UV-stabilised too.\nThe reflector layer of the mirrors is laid by means of high vacuum evaporation of 99.9% aluminum. The thin-film technology and high-quality materials used, as well as the high technology vacuum equipment, ensure the excellent optical quality and durability of SATEL mirrors.\nStriving to be as environmentally friendly as possible, we use only water-soluble paints and varnishes to protect SATEL mirrors. The fixtures, providing quick and easy installation and adjustment in all directions, are included in the set. At the client’s request, we can produce mirrors with shapes, sises and radii of the bulge different from our standard products.","domain":"optical_engineering"}
{"url":"http://colaser.org/2017/10/04/red-laser-melted/","date":"2024-04-21T04:37:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.0/warc/CC-MAIN-20240421040323-20240421070323-00803.warc.gz","language_score":0.9602562189102173,"token_count":114,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__40843827","lang":"en","text":"The beam combiner optic finally came in from China, but when I went to install it into the laser I found that the red dot laser still wasn’t working right. On closer examination, I found that the plastic lens built into the red dot laser unit itself was melted! I’m guessing this was a side effect of the damage to the old beam combiner. It must have reflected some significant portion of the main laser’s energy onto the red laser.\nI’re purchased a replacement red laser and will get it installed soon.","domain":"optical_engineering"}
{"url":"https://www.hvacpproducts.com/2020/07/newest-flir-spot-thermal-camera-offers-improved-diagnosis-for-electrical-inspection-maintenance/","date":"2021-10-23T18:38:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585737.45/warc/CC-MAIN-20211023162040-20211023192040-00189.warc.gz","language_score":0.8644546866416931,"token_count":275,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__77421790","lang":"en","text":"FLIR introduces the TG165-X MSX Thermal Camera for electrical contractors, machine technicians, facilities maintenance engineers, home inspectors and HVAC professionals. Engineered for tough work environments, this upgrade to the popular TG165 provides an all-in-one diagnostics tool with a spot temperature gun and thermal imager, enhanced by FLIR’s patented Multi-spectral Dynamic Imaging.\nBuilt around a true thermal 80X60 camera sensor with 4,800 pixels, FLIR MSX’s two-camera technology makes images easier to understand by adding visual details to full thermal images and making them sharper to recognize physical features. A new laser-projected bullseye target aids in pinpointing areas of concern, while the bright 2.4-inch LCD color display and wide 51 degrees X 66 degrees field-of-view provide a comprehensive view of the area of interest.\nThe TG165-X includes an IP54 enclosure for protection against dust and water and a drop-rating of two meters (6.6 feet), making it ideal for both indoor and outdoor inspections. The camera can store up to 50,000 images and data to an embedded four-gigabyte flash memory which can be downloaded to FLIR Tools to create professional reports.\nFor more information, visit www.flir.com/tg165-x.","domain":"optical_engineering"}
{"url":"https://www.claravision.com/en/who-are-we/","date":"2023-09-25T07:10:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506686.80/warc/CC-MAIN-20230925051501-20230925081501-00343.warc.gz","language_score":0.9354695677757263,"token_count":100,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__258775125","lang":"en","text":"Clara Vision is a French company founded in 1994 specialized in scientific and industrial imaging.\nFor 25 years, we have been designing and developing image acquisition and analysis software dedicated mainly to quality control and research.\nFrom the simplest solution to the complete imaging station, Clara Vision adapts to the needs of these customers!\nThe headquarters of the company is based in France, in Verrières le Buisson.\nClara Vision relies on a network of dedicated distributors whether in France or abroad.","domain":"optical_engineering"}
{"url":"http://trendzhqfinal2.cloud4demo.com/apples-ar-headset-might-use-holographic-imaging/","date":"2021-03-01T00:16:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178361808.18/warc/CC-MAIN-20210228235852-20210301025852-00628.warc.gz","language_score":0.9639413356781006,"token_count":298,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__79590520","lang":"en","text":"The problem with portable headsets is that it can be cumbersome, especially for glasses wearers. This means that the extra weight of the frame and glasses can become too heavy to be used for a long period of time. However, it seems that Apple could have a unique and novel solution to this problem: holographic imaging.\nThis emerges from a recently discovered patent by AppleInsider in which Apple appears to be investigating the holographic imaging that could potentially be used to replace displays used in these types of wearables. It has been suggested that using holographic imaging instead of conventional displays could solve certain functional problems with such devices.\nAppleInsider, for example, points out how changes to optical components can affect size, weight and performance. Costs for the headset. The use of more traditional display components also influences the design of the headset in such a way that the components have to be placed further away from the user. This can also put more pressure on the user's face and make it uncomfortable to wear for a longer period of time.\nIt is rumored that Apple has been working on an AR headset for some time. Some rumors claim that it could actually hit the market in 2020 (some say 2021). However, this is a patent, and it remains to be seen whether it will become a reality or not, but it could get more people to introduce such devices.\nSaved in. Read more about augmented reality (AR), patent and wearable tech. Source: appleinsider","domain":"optical_engineering"}
{"url":"https://www.set.ecs.soton.ac.uk/news/6622","date":"2022-05-26T21:25:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662625600.87/warc/CC-MAIN-20220526193923-20220526223923-00044.warc.gz","language_score":0.9028839468955994,"token_count":507,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__194634712","lang":"en","text":"Researchers expand silicon photonics prototyping facility with ã1.5m investment\nA rapid prototyping service for photonic integrated circuits is being expanded in a new funding success at the University of Southampton's ã120m cleanroom complex.\nResearch partners, including experts from Electronics and Computer Science's Sustainable Electronic Technologies group, have been awarded around ã1.5m by the Engineering and Physical Sciences Research Council (EPSRC) to extend the CORNERSTONE service.\nCORNERSTONE is an industry compatible, flexible silicon photonics fabrication foundry that provides a multi-project-wafer (MPW) service for academics and industry. The scalable platform, which is unique in its design and process versatility, offers a clear route to market through the use of deep ultraviolet projection lithography.\nThe team will now develop six new silicon-based technology platforms for researchers to design next generation circuits. These platforms will extend the supported wavelength range into both the visible wavelengths and mid-infrared wavelengths, enabling a range of applications including LIDAR remote sensing and lab-on-a-chip devices.\nProfessor Harold Chong, Project Co-Investigator and Professor of Electronic Engineering, said: The flexibility of the processes and the variety of the platforms available in CORNERSTONE 2 gives researchers numerous options when designing optoelectronics devices and systems.\nThe service is led by Southampton researchers from the Zepler Institute for Photonics and Nanoelectronics' Silicon Photonics Group and School of Electronics and Computer Science, alongside external partners from the University of Glasgow. The Glasgow team will be responsible for integrating light sources onto silicon photonics chips, a major step in the commercialisation of silicon photonics.\nProfessor Graham Reed, Project Principal Investigator and Deputy Director of the University's Optoelectronics Research Centre, said: \"I'm delighted that the EPSRC are supporting the expansion of CORNERSTONE. I believe that it will enable UK researchers to have significant impact in a variety of silicon-based platforms.\"\nThe project officially launches on Sunday 1 March and will run for two years.\nUK academics will have the opportunity to access the new platforms free-of-charge for the final six months of the project. Throughout the CORNERSTONE 2 project, the team will be consulting the community to determine if they would like to see CORNERSTONE become an EPSRC National Research Facility (NRF).\nFor more information, visit the CORNERSTONE website.","domain":"optical_engineering"}
{"url":"https://community.mojeek.com/t/thermal-radiator-provides-passive-cooling/691","date":"2023-10-02T15:15:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511000.99/warc/CC-MAIN-20231002132844-20231002162844-00221.warc.gz","language_score":0.8986271023750305,"token_count":175,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__4028333","lang":"en","text":"This might be a way to increase the efficiency of data centers.\nThe Stanford mirror was designed in such a way that it reflects 97% of the visible light that falls on it. But more importantly, it works as a thermal radiator. When the mirror is warmed up, it releases heat at a specific wavelength of infrared light that passes easily through the atmosphere and out into space.\n- Mirrors could replace air conditioning by beaming heat into space | The Guardian\n- Sending excess heat into the sky | Stanford News\n- A cooling system that works without electricity | Kurzweil Library\n- SkyCool Systems\n- Bringing electricity-free cooling to the world | YouTube\n- How we can turn the cold of outer space into a renewable resource | Aaswath Raman | YouTube\n- This New Space Tech Could Someday Replace A/C | YouTube","domain":"optical_engineering"}
{"url":"http://www.eagleval.com/bushnell-legend-ultra-hd-8x42-binocular.html","date":"2013-05-21T07:26:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368699776315/warc/CC-MAIN-20130516102256-00022-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9087757468223572,"token_count":615,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__13205874","lang":"en","text":"Are you looking for a new pair of binoculars? If so, some of the features to look at besides image quality include the weight and design of the binoculars. If you are looking for a lightweight pair of binoculars which will provide unrivalled viewing quality the Bushnell Legend Ultra HD 8X42 Binocular are worth considering.\nMajority of the standard sized binoculars are “heavy” considering the fact that they are held up for most of the time they are in use. These usually cause muscle fatigue. The Bushnell Legend Ultra HD 8X42 Binocular soles this problem and weighs in at just 22.4 ounces! It also features an ergonomic design which further reduces the strain on your hands.\nMany people often find that their binoculars are almost useless when it comes to viewing in low light situations. The Bushnell Legend Ultra HD 8X42 Binocular features ultra wide band lens coating which allows for viewing in low light conditions. It’s an ideal choice for dawn and dusk hunters who want to spot game easily.\nAnother outstanding feature of this pair of binoculars is the Rainguard HD. Using binoculars in rainy conditions can cause eyestrain. You can’t simply look through the rain! This feature protects your view by reducing raindrop sizes making it easy for you to view your subject easily.\nBushnell Legend Ultra HD 8X42 Binocular Features & Details\n• 8X magnification and 42mm objective lens\n• Color-tuned, high resolution HD extra low dispersion glass\n• Ultra wide band lens coating guarantees maximum brightness on low lighting conditions\n• Rainguard HD water repellant coating\n• Field of view of 426 feet at 1000 yards\n• Trim, lightweight ergonomic design\n• Twist up eye caps\n• Tripod adaptable\n• Locking diopter\n• Weighs 22.4 ounces\n• Measures 9.2”X8.8”X4.2”\nBushnell Legend Ultra HD 8X42 Binocular: The Consumer Review Scores\nThis review isn’t complete without taking note of what real consumers say about the Bushnell Legend Ultra HD 8X42 Binocular. While conducting research for this review, we sampled 15 online consumer reviews. Based on our research, the Bushnell Legend Ultra HD 8X42 Binocular has an average score of 4.5 out of a possible 5 points. Majority of those who reviewed this pair of binoculars have nothing but praise for it and would recommend it to other consumers. Like with other products, this binocular did attract a few negative review. Most of these pointed out that the eyepiece was a bit difficult to use especially if you aren’t wearing glasses.\nOverall, if you are looking for a quality pair of binoculars which provide excellent viewing and lightweight design, the Bushnell Legend Ultra HD 8X42 Binocular is worth investing in, see more detail page here.","domain":"optical_engineering"}
{"url":"http://regency-blinds.co.uk/hospital-clinical/laser-blinds-for-operating-theatres/","date":"2022-06-25T22:56:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103036176.7/warc/CC-MAIN-20220625220543-20220626010543-00411.warc.gz","language_score":0.916523277759552,"token_count":160,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__31098561","lang":"en","text":"The Laser Material provides protection from stray laser radiation and is available on a full spectrum of our range of roller blinds. Designed to be used as passive guards in all areas where Class 3B or Class 4 lasers are regularly in use, the material is certified to EN 60825 -4 (Safety of Laser Products Part 4: Laser Guards) and is fire proof.\nAvailable on a full range of roller blind systems to ensure there is a solution to virtually all laser blocking requirements. All blinds are made to measure. Recommended systems are detailed below:\nR20; R20C; R40; R55; VPF; C74; C75.\nLaser fabric available in black; Suitable for chain, crank, and electric operation; Suitable for vision panel flaps.","domain":"optical_engineering"}
{"url":"https://www.pmbcctv.co.za/Hikvision-DS-2TP21B-6AVF-W-Handheld-Thermography-Camera","date":"2022-08-16T10:24:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572286.44/warc/CC-MAIN-20220816090541-20220816120541-00186.warc.gz","language_score":0.7711860537528992,"token_count":246,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__204634379","lang":"en","text":"Hikvision DS-2TP21B-6AVF/W Handheld Thermography Camera. The Hikvision DS-2TP21B-6AVF/W handheld thermal camera is specially designed for body temperature measurement. It’s equipped with a 160×120 resolution thermal detector. It is capable of discovering and tracking people with elevated body temperatures in crowded public areas and can be widely used in places such as customs, airport, schools, and hospitals for inspection and quarantine. Key Features: 160 × 120 Resolution (Thermal), and 8 MP Resolution (Optical); Thermographic Accuracy up to ±0.9° F (±0.5° C); Display Fusion of Thermal View and Optical View: 640 × 480 Resolution 3.5” LCD Touch Display: Supports Live View on PC, Mobile Device, or External Monitor; Supports Audio Intercom; Supports Colour Highlight Alarm and Audio Alarm; IP54\nHikvision Handheld Thermography Camera.\n- Product Code: DS-2TP21B-6AVF/W\n- Availability: In Stock\n- Ex Tax: R91,495.00","domain":"optical_engineering"}
{"url":"https://www.louisvlinebullys.net/forum/puppies-for-sale/camera-zoom-fx-premium-v5-7-0-apk","date":"2023-06-10T04:37:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656963.83/warc/CC-MAIN-20230610030340-20230610060340-00477.warc.gz","language_score":0.8969292044639587,"token_count":427,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__173157932","lang":"en","text":"Camera ZOOM FX Premium V5.7.0 Apk\nDOWNLOAD - https://geags.com/2tr5ZU\nNinja V includes a comprehensive range of monitoring tools including a waveform, focus peaking, false color, zoom controls, custom LUTs, and frame guides. Each offers an opportunity to perfect the composition and exposure for every shot and can be overlaid in any combination, unlike many other monitors that allow only one monitoring tool at a time. AtomOS software is easy to use and provides a platform for Atomos to easily update Ninja V, introduce new features, and add support for new cameras on release.\nCalibrated lens data can vary depending on the camera's focus and zoom. Therefore, to achieve a high-quality calibration, you often need to calibrate using multiple focus and zoom points. Distortion parameters, camera intrinsics, and nodal point offsets are all stored in the Lens File along with their associated focus and zoom value. It is possible to evaluate a calibrated Lens File for any focus and zoom position by interpolating between the stored focus and zoom points.\nYou can manually adjust the location of the image center after you calibrate the lens. This can be useful when the interpolated image center between two calibrated focus or zoom points is not accurate, or when external factors, such as temperature, affect your camera lens slightly.\nCamera: The Virtual Camera Actor that is used to render the CG layer. To do any calibration steps, this camera must also have a Live Link Camera Subject driving its focus, iris, and zoom values, and have this Lens File Asset assigned to it.\nFor users who perform camera calibration within Unreal Engine, we have added a Lens File asset to the LiveLink Camera Controller. When a Lens File is present, the camera controller will evaluate that Lens File at the focus and zoom positions streamed through LiveLink. This evaluation interpolates between the closest calibrated points in the Lens File to generate distortion parameters, camera intrinsics, and nodal point offset for the current frame. 1e1e36bf2d","domain":"optical_engineering"}
{"url":"https://www.impreglon.de/oct_tamworth/en/","date":"2018-12-09T23:56:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823228.36/warc/CC-MAIN-20181209232026-20181210013526-00320.warc.gz","language_score":0.9545425176620483,"token_count":292,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__245696604","lang":"en","text":"We are the premier applicator of optically clear coatings onto thermoplastics such as Polycarbonate, Acrylic (PMMA), PPSU and Polyurethane. With a large range of optical coatings and various application techniques, we are at the forefront of applying coatings to flat and profiled industrial plastic components. The use of transparent plastics to manufacture high quality components in the areas of optics technology, automotive and the railway industry has been steadily growing over recent years.\nScratch resistant coatings from Optical Coating Technologies significantly upgrade plastic parts and this way enlarge the range of their application in various industries. Our own specially designed products as well as conventional coating systems are applied. These coatings are often called nano coatings as they are only a few microns in thickness. They are permanently bonded and are typically applied by spray, dip and flow (or float) coating. The application procedures depend on the requirements of the base material and can be adjusted accordingly. A dust free production environment is indispensable. Our high quality optical coatings are ensured by working under clean room conditions.\nOptical Coating Technologies also applies metal coatings such as gold, silver, copper and aluminium on to plastics using vacuum deposition. These coatings are used, for example, on eye safety wear, medical components, mirrors, semi-conductor wafers, automotive decorative trim and for special effects (for TV, theatre and architect's models).","domain":"optical_engineering"}
{"url":"https://beg.cavitak.com/luxomat-lighting-control-solutions/","date":"2024-02-28T07:10:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474697.2/warc/CC-MAIN-20240228044414-20240228074414-00544.warc.gz","language_score":0.9375395774841309,"token_count":189,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__103992696","lang":"en","text":"LUXOMAT is an intelligent and economical lighting control solution based on modern sensor technology. It has a wide range of energy-efficient products like occupancy and motion detectors, DALI, and Photoelectric switches.\nSmart lighting control solutions are widely used in both indoor and outdoor lighting of commercial, industrial and residential spaces. Motion detectors are designed to detect moving sources of heat in their detection area reliably and switch the light depending upon ambient light. The occupancy detector regulates the artificial light in such a way that there is a constant Lux value in the room.\nMicrowave motion detector are designed for surface mounting and installation in lights which makes independent temperature detection. Detectors are available with spring clips for quick and easy installation in a suspended ceiling. Current air quality can be quickly recognised even from a distance by means of LED colours.\nAlthough, with the leading-edge technology these sensors meets a variety of requirement and offers great convenience and comfort.","domain":"optical_engineering"}
{"url":"http://beaufjtmq.pages10.com/Considerations-To-Know-About-smartphone-accessories-24436220","date":"2019-06-18T19:10:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998813.71/warc/CC-MAIN-20190618183446-20190618205446-00437.warc.gz","language_score":0.9616878628730774,"token_count":542,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__68068732","lang":"en","text":"Many feel that the development of cell phones right into the market endangers the survival of the basic, low to mid-range, factor and also shoot digital cams. There was a vital study executed by optical part professionals Schneider Kreuznach that validates the capabilities of cellphone photography. About 1,000 video camera consumers from different nations were talked to pertaining to how they favor to take photographs. A number of the questioned camera customers conceded that due to the highly advanced functions of cellular phone, they believe that cellular tool electronic cameras offer customers along with better high quality pictures.\nSimply thirty-two per-cent of the people questioned stated they would rather continue to take photos along with a digital camera. There were a a great deal of individuals from Asia that were incredibly ready for making use of smart phones for all of their picture taking demands. Majority of the people coming from Asia will gladly shoot and replace a point camera with a smart phone.\nSmart phone manufacturers recognize the importance of optimizing their camera capabilities and producing models that have higher-resolution with stronger lens systems. Many of the major mobile phone producers are joining their efforts with the leading specialized digital camera lens manufacturers to make these upgrades in future models.\nWith the increase in demand for higher quality smart phone cameras, manufacturers travel mobile photography accessories have started to act so that they could meet these demands. Consumers are also beginning to realize that there is no longer a need to carry both a cellular device and a digital camera to take pictures.\nBecause they can take higher quality pictures than mobile devices, many of the high-end digital cameras are still more optimized for photography. But laid-back image takers are certainly not as worried about these differences. What brings in many customers to smart phones is actually that they provide lots of wonderful features all in one, tiny, easy to bring tool. Along with numerous technological improvements to follow, it will not be long prior to cell phones can take pictures with the exact same premium of high-end digital video cameras.\nNo matter what kind of accessories you need, you can visit CellPhone AccessoriesV and browse our largest selection of accessories.\nMany believe that the emergence of smart phones into the market threatens the survival of the basic, low to mid-range, point and shoot digital cameras. Many of the interviewed camera users agreed that due to the technologically advanced features of cell phones, they believe that cellular device cameras provide users with better quality pictures.\nMany of the major mobile phone producers are joining their efforts with the leading specialized digital camera lens manufacturers to make these upgrades in future models. With the increase in demand for higher quality smart phone cameras, manufacturers have started to act so that they could meet these demands.","domain":"optical_engineering"}
{"url":"http://spencerplfx000.tinyblogging.com/Eye-Surgery-6504042","date":"2018-07-23T13:44:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676596463.91/warc/CC-MAIN-20180723125929-20180723145929-00477.warc.gz","language_score":0.9607380628585815,"token_count":1323,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__80140994","lang":"en","text":"Eye Surgery has ended up being a mainstream technique of vision adjustment, and this article will certainly describe the advantages and negative aspects of 3 various techniques being offered to the clinical customer.\nLasik Eye Surgical treatment\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis as well as is an eye surgical system which completely corrects vision by eliminating a thin layer of the cornea. This treatment functions best on people with modest to high degrees of nearsightedness (nearsightedness), reduced to moderate levels of hyperopia (farsightedness) as well as astigmatism connected with myopia, and also that have thick corneas. It is the most well-known medical vision modification technique.\nPeople with normal eye view see objects plainly since images are brought right into a right centerpiece by the cornea and lens of the eye. Preferably, the cornea's curvature is evenly matched to its size in a typical eye. Individuals with astigmatism, myopia or hyperopia have actually off-and-on shaped corneas, so the things seen are not focused properly. LASIK adjustments corneal shape by accurate removal of corneal cells, and by doing so deals with the eyes' concentrating power.\nThere are, nonetheless, dangers to LASIK eye surgical treatment.\nThere is a remote chance of full loss of vision. If this occurs, it is usually due to the fact that the individual had a pre-existing condition which should have averted the surgical treatment to begin with, such as pregnancy, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with large students are additionally bad candidates for LASIK. Dry eye syndrome will certainly be intensified by this treatment.\nA couple of patients complain that they permanently see \"ghost\" pictures, have actually obscured vision, decreased comparison and poor evening vision. When LASIK wased initially introduced, 5% of people had post-operative problems; nonetheless, refinements in the treatment have created this rate to go down to much less compared to 1% if LASIK is done by knowledgeable experts as well as clients are correctly screened prior to surgical treatment. If troubles do take place, they could frequently be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical treatment because 1998. While there are a great deal of pleased people, there are nonetheless no long-term research studies concerning its effects. Understand the constraints and the risks of LASIK eye surgical treatment prior to you sigh for the treatment.\nThough much less well known, these little implants could enhance vision in people with moderate to modest myopia without the risk of irreversible eye damages inherent in the tissue elimination strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to think a flatter form. Though somewhat much less specific compared to LASIK, they are removeable and also exchangeable, so if the person has an unanticipated over- or under-correction, the dental implant could be gotten rid of as well as one more of a different size inserted to obtain the desired adjustment. The implants are located at the edge of the cornea, so the central visual area is totally intact as well as undamaged, and the strength of the cornea is undiminished, making it a better alternative for pilots and also those that take part in call sporting activities where eye injury is a possibility.\nIntacs disagree for severe nearsightedness as well as greater than minor astigmatism (1.00 diopters), as the cornea could only be stretched up until now. If the Intacs are removed, vision go back to its preoperative degree. Besides vision adjustment, Intacs are likewise used to treat keratoconus.\nIntacs are FDA approved as well as One Decade research try this studies have disclosed no major troubles with Intacs as well as very few person problems; however, due to the fact that the procedure takes more training compared to LASIK, there are fewer eye surgery centers offering it. Nonetheless, the Intacs site offers a listing of specialists in each state, too a few in Canada, Europe and also description Mexico.\nSince many people do not wish to risk LASIK as well as Intacs can not assist those with extreme vision issues, intraocular lens implants (IOL) are a new choice approved by the FDA in 2004 to remedy modest to extreme nearsightedness. The Artisan lens, produced by Ophtec, is similar to the kind of lens implant used to recover vision complying with cataract eye surgical procedure.\nThe new IOL, called the Craftsmen, is intended for only people who have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not replace the all-natural lens, but is placed in front of it. The major problem discovered with the dental implant was the steady loss of endothelial cells in the corneas of individuals that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are essential in maintaining the cornea clear. A three-year research showed a regular steady loss of endothelial cells of 1.8 percent a year. At this moment, no person could predict whether this loss will continue at the very same rate indefinitely, and even its influence on corneal function.\nTo reduce lasting effects of the device on the corneal endothelium, the FDA is needing that the brand-new lenses be labelled to define that they should just be implanted in individuals whose corneal endothelial cells are thick enough to withstand small cell loss.\nA lot more major complications were couple of: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up survey of its dental implant people to much better assess the post-surgical incidence of cataract development, retinal detachment and other sensory illness.\nThe Craftsmen lens is meant to be an irreversible implant.Though it could be gotten rid of operatively, vision might not always return to what it was before obtaining the lens. Since it does not impact astigmatism, clients with this problem could still call for glasses.","domain":"optical_engineering"}
{"url":"https://lengusa.com/sentence-examples/colour","date":"2023-03-26T03:04:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945381.91/warc/CC-MAIN-20230326013652-20230326043652-00099.warc.gz","language_score":0.9055163264274597,"token_count":1018,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__179564832","lang":"en","text":"The strong force originates in a property known as colour.\nIts colour temperature is great, and it rendered the sRGB colour gamut with aplomb.\nBut if purple is the colour of the bull market, what is the colour of the bear market?\nTo find out more about colour contrast rules, visit the BBC mobile accessibility guidelines for colour contrast.\nDefective colour vision affects men more often than women.\nFor the physiological aspects of colour vision, see eye: Colour vision.\nLand’s interest in light and colour resulted in a new theory of colour perception.\nThe term ‘thermo’ relates to heat, and chroma means colour - so thermochromic pigments change colour when they are heated up.\nThe planning and the principle of colour separation are similar to those for the colour woodcut or intaglio colour.\nIf colour adds significant scientific information to a graph, figure or photo, the publisher will no longer charge a fee for colour reproduction.\nSamsung has also been keen to promote the concept of colour volume, which is a combination of a display’s peak brightness and its colour reproduction.\nColour filters are also used for colour correction in the printing process and for selecting contrast scales of multicontrast black-and-white enlarging paper.\nThe best picture results when a separate film is made for each colour; however, each colour can occupy alternating frames or small, alternating portions of each frame of a single film.\nSo, what’s really good is you just – I like three because I think the way to good eyeshadow is three colours – one light colour, one medium colour, one dark colour and they’re all matt.\nIn fortune-telling by cards, a diamond colour is the fairest; heart-colour, fair, but not so fair as the last; club colour, rather dark; spade colour, an extremely swarthy complexion.\nBy making bulky studio-type colour cameras obsolete and permitting the use of readily portable camera equipment for the production of colour images, on-the-spot colour photography became possible, greatly…\nCalculating chromaticity and luminance is a scientific method of determining a colour, but, for the rapid visual determination of the colour of objects, a colour atlas such as the Munsell Book of Color is often used.\nAs is pointed out in the section Compatible colour television, the colour television signal actually consists of two components, luminance (or brilliance) and chrominance; and chrominance itself has two aspects, hue (colour) and saturation (intensity of colour).\nIt used a colour screen (a glass plate covered with grains of starch dyed to act as primary-colour filters and black dust that blocked all unfiltered light) coated with a thin film of panchromatic (i.e., sensitive to all colours) emulsion, and it resulted in a positive colour transparency.\nIn a breed of dog, for example, in which the gene for black coat colour is dominant over (suppresses the effect of) the gene for red coat colour, a dog with a black-coloured coat may be either pure breeding, with two genes for black coat colour, or hybrid, with one gene for black coat colour and one for red coat colour.\n- modify or bias\n- any material used for its color\n- having or capable of producing colors\n- decorate with colors\n- (physics) the characteristic of quarks that determines their role in the strong interaction\n- give a deceptive explanation or excuse for\n- interest and variety and intensity\n- the timbre of a musical sound\n- affect as in thought or feeling\n- add color to\n- a visual attribute of things that results from the light they emit or transmit or reflect\n- change color, often in an undesired manner\n- an outward or token appearance or form that is deliberately misleading\n- the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation\nOn this page, there are 20 sentence examples for colour. They are all from high-quality sources and constantly processed by lengusa's machine learning routines.\nJust use the \" \" button to fragment sentence examples and start your learning flow.\nExample output from one of your searches:\nIn a breed of dog for example in which the gene for black coat colour is dominant over suppresses the effect of the gene for red coat colour a dog with a black-coloured coat may be either pure breeding with two genes for black coat colour or hybrid with one gene for black coat colour and one for red coat colour","domain":"optical_engineering"}
{"url":"http://ripleypower.com/save/led-lights.php","date":"2017-12-12T21:28:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948519776.34/warc/CC-MAIN-20171212212152-20171212232152-00300.warc.gz","language_score":0.9394360184669495,"token_count":405,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__229759917","lang":"en","text":"LED lights can be more efficient, durable\nLight–emitting diodes (LEDs) produce visible light very efficiently when an electrical current passes through semiconductor material inside them.\nLED lighting differs from incandescent and compact fluorescent lighting (CFL) in several ways, and it can be more efficient, durable, versatile and longer lasting.\nLEDs are directional light sources, which means they emit light in a specific direction, unlike incandescent and compact fluorescent bulbs, which emit light and heat in all directions. For this reason, LED lighting is able to use light and energy more efficiently in many applications. However, it also means that sophisticated engineering is needed to produce an LED light bulb that shines light all around like an incandescent A-shape bulb.\nIncandescent bulbs produce light using electricity to heat a metal filament until it becomes white hot or is said to incandesce. As a result, incandescent bulbs release 90 percent of their energy as heat.\nIn a CFL, an electric current flows between electrodes at each end of a tube containing gases. This reaction produces ultraviolet (UV) light and heat. The UV light is transformed into visible light when it strikes a phosphor coating on the inside of the bulb.\nBecause LED lighting systems don’t radiate heat, the heat produced from the power going into the product must be drawn away from the LEDs. This is usually done with a heat sink – a passive device that absorbs heat and dissipates it into the surrounding environment.\nCommon LED colors include amber, red, green and blue. There is actually no such thing as a white LED. To get white light, color LEDs are mixed or covered with a phosphor material that converts the color of the light. Colored LEDs are widely used as signal lights and indicator lights, like the power button on a computer.\nLEDs are also incorporated into bulbs and fixtures for general lighting applications. Because they are small, they provide unique design opportunities.","domain":"optical_engineering"}
{"url":"https://www.dronenr.com.au/articles/tag/opkix/","date":"2019-12-15T09:06:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575541307797.77/warc/CC-MAIN-20191215070636-20191215094636-00200.warc.gz","language_score":0.9733914732933044,"token_count":176,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__73732776","lang":"en","text":"OPKIX Inc. has just launched its camera the OPKIX One in with their distributor partner Lightec. The news comes after OPKIX held a launch event in Tokyo, Japan earlier today with products to be available shortly. The OPKIX One is one of the most promising tiny cameras to keep its user in the moment we have seen to date.\nThe OPKIX One camera is the product from OPKIX Inc. along with technology partners, such as Arrow Electronics. With almost USD$12 million in funding from venture companies the world over. Is the OPKIX One the last camera you will ever need? The OPKIX team created a small pair of cameras to fix one of the biggest issues we have today when recording our life. The OPKIX One was designed to capture the moments you live in and live in the moments you capture.","domain":"optical_engineering"}
{"url":"https://www.tradelighting.co.uk/recess-mounted-12mm-aluminium-led-profile","date":"2018-12-18T18:24:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829542.89/warc/CC-MAIN-20181218164121-20181218190121-00408.warc.gz","language_score":0.8476101756095886,"token_count":302,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__217840999","lang":"en","text":"Recess Mounted 15mm Aluminium LED Profile (Extrusion) For All Types Of LED Tape\nNow Available in a 1m or a 2m long length (2m long lengths will take 2 working days to be delivered)\nOur surface mounted aluminium LED profile can be used to house any of our LED Tapes. A LED Profile helps to keep our LED Tape safe and out of the way. Free from moisture and free from dust. It also gives the LED Tape a more professional touch.\nWe supply all of our extrusions in a 1m or 2m long length which is easily cuttable using a hacksaw or other types of cutting equipment (Therefore the price displayed is per metre). The LED Profile is supplied complete with a frosted cover.\nFor customers who require longer lengths than 2m, you can simply just butt them up to one and other up to what length you require. Installation is designed to be as simple as possible.\nThe LED Profile is 15mm deep, 17.5mm wide. Please note, the product does not include the LED Light shown in image below/above. This is sold separately\nEnd Caps are also available to seal the ends once installed.\n|Brand||SLG Lighting Ltd.|\n|IP Rating||IP 20|\n|Length||1m or 2m|\n|Width||25mm (incl lip)|\n|Number of Bulbs||No|\n|How Many Lights?||No|","domain":"optical_engineering"}
{"url":"http://europe.chemtronics.com/c-262-fiber-optic-cleaning-kits.aspx","date":"2017-04-24T17:07:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119642.3/warc/CC-MAIN-20170423031159-00620-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8346155881881714,"token_count":244,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__118708150","lang":"en","text":"A high quality fiber optic installation starts with the connectors. Clean connections give you faster transmission rates, higher bandwidth and maintenance-free operation. Fiber optic kits include all the tools you need to achieve clear connections.\nFOCCUS™ brand products from Chemtronics give you the tools you need to quickly clean connectors and ports. Patented technology and proprietary Combination Cleaning™ process give you clean connections the first time, every time.\nCompact Cleaning Kits\nThe fiber optic cleaning kit designed for insertion into test equipment, or placed on site for convenience\nFiber Optic Construction Kit\nThe Fiber Optic Construction Kit for end face cleaning and fusion splice prep\nFusion Splice Prep and Equipment Maintenance Kit\nHighly effective on single and mass splices. Essential for proper equipment maintenance.\nUniversal Fiber Optic End Face Cleaning Kit\nUniversal Fiber Optic End Face Cleaning Kits for cleaning all FTTx connections\nCleans all existing end face and back plain configurations. Telco, CATV, Enterprise, ITS, Contractors.\nTransportable I & M Fiber Optic Cleaning Kit\nTransportable fiber optic installation and maintenance cleaning kits for 2.5mm connections","domain":"optical_engineering"}
{"url":"http://rexiwiforofetymiw.mint-body.com/a-look-at-the-laser-and-its-characteristic-components-2479424794.html","date":"2018-12-16T05:20:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827281.64/warc/CC-MAIN-20181216051636-20181216073636-00336.warc.gz","language_score":0.9234547019004822,"token_count":1240,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__183434969","lang":"en","text":"The mirrors placed at opposite ends of a laser cavity enables the beam to travel back and forth in order to gain intensity by the stimulated emission of more photons at the same wavelength, which results in increased amplification due to the longer path length through the medium.\nSince a common stimulus triggers the emission events, which provide the amplified light, the emitted photons are \"in step\" and have a definite phase relation to each other.\nLike any electronics components, many of the specifications are relatively generic, but other parameters will tend to be more focussed on the particular component. This spot size, called the \"gaussian spot size\" and can be estimated by a simple formula in terms of the cavity length L, the end mirror radii r1 and r2, and the wavelength.\nWhen the intensity of the radiation is sufficiently high, damage to the absorbing tissue will result. However, for applications involving interference such as holography or interferrometric measurements, and in applications related to spectroscopic and photochemical, where single well-defined wavelength is required, single mode lasers are very critical.\nIt is induced by high-speed photons. The active medium is excited by the external energy source pump source to produce the population inversion. Further there is no amplification in the case of spontaneous emission as well as no phase relationship between emitted photons, as it happens in the case of stimulated emission.\nThe fundamental TEM00 mode is only one of many transverse modes that satisfy the round-trip propagation criteria. Examples of pump sources are electrical discharges, flash lamps, arc lampslight from another laser, chemical reactions etc. A frequency stabilized If we intersect the output laser beam and study the transverse beam cross section, we find the light intensity can be of different distributions patterns.\nAnother way of saying the same thing is that coherence is a measure of the ability of a light source to produce high contrast interference fringes when the light is interfered with itself in an interferometer. M2 is an accurate indication of the propagation characteristics of the beam.\nIn terms of wavelength, it means that at a wavelength of The to and fro movement of the electromagnetic radiation is controlled by the laser cavity end mirrors and only the waves with nodes at both ends are sustained or allowed, which means that the cavity length should be an integral multiple of the half wavelengths.\nThis spectrally pure output is critical for a multitude of applications, including remote sensing for specific chemical constituents and high signal-to-noise ratio SNR communications.\nThese are known as injection laser diodes. The multiple longitudinal mode structure gives rise to a power fluctuation phenomenon termed mode sweeping. Multimode laser diodes tend to be used where high power is required and a larger laser diode is required to accommodate the higher power levels.\nA point source emits spatially coherent light, while the light from a finite source has lower coherence. Mode locked lasers usually produce trains of pulses with a duration of a few picoseconds to nanoseconds resulting in higher peak powers than the same laser operating in the Q-switched mode. Pumping can be done in two ways - electrical discharge method and optical method.\nWith respect to the laser, it is the greatest distance between two arms of an interferometric system for which sufficient interferometric effects can be observed. However, instead of a narrow band of wavelengths none of which is dominant as in the case of the filter, there is a much narrower linewidth about a dominant center frequency emitted from the laser.\nLaser diode far-field beam pattern The pattern for the beam of light emitted is an important laser diode specification from an optical viewpoint. It plots the drive current supplied against the light output. Holography, which is based on interference between light beams, long coherence length enables taking holograms of large bodies, which require greater depth of field.\nAccordingly laser diode specifications are required when designing equipment using laser diodes or for maintenance using near equivalents. M2 beam quality factor limits the degree to which a laser beam can be focused for a given beam divergence, which in turn is limited by the numerical aperture of the focusing lens.LASER DIODE DRIVER BASICS.\nGrounding with modules and components: Some laser diode packages short either pin of the laser diode to the case, which may connect the pin to earth ground through system hardware. Special attention to the details of grounding will ensure safe operation.\nThe following definitions and options assume the. The word \"laser\" is an acronym for Light Amplification by Stimulated Emission of Radiation. Lasers are finding ever increasing military applications -- principally for target acquisition, fire control, and training.\nThese lasers are termed rangefinders, target designators, and direct-fire simulators. One of the important properties of laser is its high directionality. and useful. Therefore, the concept of a dimensionless beam propagation parameter, M 2 was developed in for all types of lasers.\nM 2 is a quantitative measure the M 2 factor, which varies significantly, affects the characteristics of a laser beam and cannot be. When using a laser diode it is essential to know its performance characteristics. Accordingly laser diode specifications are required when designing equipment using laser diodes or for maintenance using near equivalents.\nLike any electronics components, many of the specifications are relatively.\nLaser diode and its L/I characteristic A laser diode, or LD, is an electrically pumped semiconductor laser in which the active laser medium is formed by a p-n junction of a semiconductor diode similar to that found in a light-emitting diode.\nLaser | Types and Components of Laser on 24/2/ & Updated on 31/7/ LASER The acronym LASER stands for Light amplification by stimulated emission of radiation. It is a device which produces lights. These lights have no existence in nature. These are also the characteristics of LASER.\nFor its operation, population inversion is much /5(3).Download","domain":"optical_engineering"}
{"url":"https://blog.seattlepi.com/aerospace/2010/05/04/mars-rover-curiosity-model-at-museum-of-flight/","date":"2021-08-03T20:55:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154471.78/warc/CC-MAIN-20210803191307-20210803221307-00663.warc.gz","language_score":0.9513103365898132,"token_count":333,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__226705831","lang":"en","text":"Imagine a focused laser beam that can evaporate rocks on a far-away planet. The stuff of science fiction, right?\nWell, not if you’re a NASA scientist working on the newest martian rover being built at NASA’s Jet Propulsion Laboratory.\nA full-scale model of the rover, about the size of a compact SUV, is on display at Seattle’s Museum of Flight from May 4 until May 31.\nThe rover, named “Curiosity” by a sixth-grader from Kansas, features a robotic arm that can drill into martian rocks to study the geology of the red planet. It also has a powerful laser on its camera mast that can send pulses of light intense enough to vaporize rocks, allowing other instruments to analyze the rocks’ spectroscopy and make-up. And just last week it was announced that sci-fi movie director James Cameron – most recently known for 3D hit “Avatar” – and his team will develop a 3D camera that will beam an unparalleled view of a real-life alien planet back to Earth.\nThe rover, too heavy for an airbag landing like its predecessor, will be lowered to the surface of the planet by a sky crane, basically a rocket-powered helicopter. The craft will hover over the planet as it lowers the rover on cables, explained Ron Hobbs of the Museum of Flight.\nIt is a complex system that NASA hopes will be as successful as its previous martian rovers.\n“The first test of the entire system will be on landing day,” said Hobbs.","domain":"optical_engineering"}
{"url":"http://astronomy.stackexchange.com/questions/1818/is-light-bending-around-my-finger","date":"2016-06-29T09:05:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-26/segments/1466783397695.90/warc/CC-MAIN-20160624154957-00179-ip-10-164-35-72.ec2.internal.warc.gz","language_score":0.9809575080871582,"token_count":110,"dump":"CC-MAIN-2016-26","global_id":"webtext-fineweb__CC-MAIN-2016-26__0__40368088","lang":"en","text":"I was hoping that astronomy enthusiasts/scientists would help me out with a simple question about light. Hold your outstretched hand up to any bright light source (the sun, or even a light bulb) so that the light is completely blocked by at least one finger, and then slowly move your finger to the side until the light just peeks around. There seems to be a glow when you do this, and I was wondering what causes this.\nIs the light bending around my finger from some sort of diffraction? What's going on?","domain":"optical_engineering"}
{"url":"http://you-crime.fun/explora/photography/buying-guide/macro-lenstoo-450753646k","date":"2021-06-18T15:09:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487637721.34/warc/CC-MAIN-20210618134943-20210618164943-00280.warc.gz","language_score":0.8771083354949951,"token_count":5657,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__169458675","lang":"en","text":"Ta en titt på mer detaljerad information om Canon EF-S 60mm f/2.8 Macro USM. Helt nära. Det här makroobjektivet ingår i EF-S-serien och kan fokusera på mycket små motiv ned till samma storlek som bildsensorn. Det har en brännvidd på cirka 96 mm i 35 mm-format, vilket ger helt fantastiska närbilder Canon EF 180mm f/3.5L USM Macro Lens. Why it's great: Telephoto prime lens with L-series quality. Minimum focusing distance of 1.6′ or 48 cm. USM autofocus with manual override. Continuing the trend of excellent L-series Canon lenses for macro photography is the EF 180mm f.3.5L Discover our full range of Macro camera lenses, which allow close-up photography of very small subjects including flowers, revealing details that can often not be seen with the naked eye. Discover our full range of Macro camera lenses, Canon RF 85mm F2 MACRO IS STM Note: Canon EF lenses work with full frame and APS-C Canon DSLR cameras. The Canon EF-S lenses are designed for the smaller sensor found on the Canon APS-C cameras (see more details about this below).. We start this discussion with a list of proprietary Canon macro lenses, followed by a selection of third party lens options. The Best Macro Lens for Canon\nCanon EF 100mm f/2.8 USM Macro Lens; Canon EF 180mm f/3.5L USM Macro Lens; Canon MP-E 65mm Macro Lens; Canon EF 24-70mm f/4L IS USM Lens; About Canon Macro Lenses. If your current lens will not focus close enough to make a subject larger in the frame, it is time to get a macro lens. Macro lenses are very fun to use, macro subjects are. For even closer shots, selected macro lenses are built with Super Macro Mode which goes to 1.2x magnification - revealing even more stunning detail. For hand-held shooting, buy a macro lens with Hybrid Image Stabilizer technology - this minimises angular and shift camera-shake as you get closer, whilst selected macro lenses with Macro Lite LED will illuminate your subject to control shine.\n5. Canon EF-S 60mm f/2.8 Macro Lens. Here we have another affordable EF-S macro lens from Canon. This lens is dynamic, it focuses quickly, and it gives you the most dramatic detail possible in all your close-up pictures. It has manual focus override, perfect resolution from corner to corner, amazing contrast, and beautiful image quality Canon 100 mm macro What is a macro lens? A true macro lens is one which is specially designed to focus up close and can do a 1:1, or life-size reproduction, of the subject.. Regular lenses have a minimum focusing distance which doesn't allow you to get close enough to a tiny subject to make it that big\n.5 IS STM lens has a built-in Macro Lite which illuminates the subject you are photographing and when in the Super Macro position has 1.2x magnification. The EF 50mm f/2.5 macro lens is the shortest of Canons macro lenses in size and its focal length Canon Camera Connect Canon Camera Connect Canon Camera Connect. Connect your Canon camera to your Apple or Android device for remote shooting and easy photo sharing. Canon Photo Companion Canon Photo Companion L-series macro lens that enables close-ups from a distance A true macro lens features a ratio of 1:1 magnification, offering the ability to capture life-size representations of insects, flowers, jewelry, and other small objects in super-close detail. This means it's possible to explore the miniature world around us as full-scale creations — allowing photographers and viewers to get within inches of the critters, bugs, patterns, and textures we so. The lack of stabilization in this older Canon 100mm macro lens therefore isn't a deal-breaker for macro photography, especially as it's so much less expensive to buy 6. Canon RF 85MM F2 MACRO IS STM. Best Canon lens for low-light macro. Having a portrait lens with a half-life-size macro function gives you two lenses in one. It's a feature that documentary photographer Ilvy Njiokiktjien, the first pro to shoot with this RF lens, uses to add a new layer to her work. It just gives me more options, she says\nThe Canon RF 85mm F2 Macro IS STM joins the similar RF 35mm F1.8 Macro as an affordable prime lens for the EOS R mirrorless camera system. As well as being ideal for portraiture, the new RF 85mm also doubles up as a 1:2 magnification macro lens, and it very usefully offers up to 8 stops of image stabilisation when paired with the EOS R5 or R6 cameras Show your world in macro with ease. The Canon range of macro lenses utilise a ring-type ultrasonic motor for fast, accurate and quiet autofocus, perfect for magnification in macro photography and to bring even the tiniest of subjects to life siz\nWe picked up a new Macro lens for ultra close shots. The Canon EF MP-E 65mm f/2.8 macro. The MPE is unlike any of the other lenses made by Canon. It has a si.. Turn to the Canon EF 50mm f/2.5 compact macro lens, which can uncover detail that would otherwise be impossible to detect by the naked eye. Ideal for shooting extremely minute subjects such as insects or the petals of a small flower, the lens offers a nine-element design and a floating optical system that focuses down from infinity to one-half life size (0.5x) Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 100mm f/2.8 Macro USM that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout\nBuy your LENS Canon Macro now. prices & deals subject to change. Lens Canon Macro Det billigaste priset för Canon EF 100/2,8 L IS USM Macro 1:1 just nu är 9 011 kr. Det är en av de 100 mest populära produkterna i kategorin Objektiv med ett genomsnittligt betyg på 4.6 av 5. Prisjakt jämför priser och erbjudanden från 28 butiker\nThe Canon EF 100mm f/2 USM Lens shares the focal length and aperture of the Zeiss 100mm f/2 Makro-Planar T* ZE Lens, but it has a significantly longer MFD (Minimum Focus Distance). The most impressive aspect of the Zeiss ZE 100 Macro is the image quality it delivers Good choice for macro on Canon and on Nikon, but a 180mm or 200mm lens is much better for practical and perspective reasons. If you won't spring for the Nikon 200mm f/4 AF-D or Canon 180mm f/3.5 L , this Tokina is as good optically as Nikon's or Canon's 100mm and 105mm lenses .8 1-5x Macro Photo. This unique macro lens is designed to achieve a high magnification greater than life size (1.0X) without the need for additional accessories. Find out more about the Canon.8 1-5x Macro Photo, its features and what it can do. View full specification..8 1-5x Macro Photo Ratings.\nCanon MP-E 65 mm macro lens. Small front lens elements are typical of macro lenses. Extension tubes for extreme macro use with SLRs. Note the pen placed through the tube to illustrate that it does not contain any lens elements. Bellows fitted between an SLR and reversed lens Having shot macro almost exclusively for over a decade, and using multiple lenses (Canon 100, 100L, 180L, MP-E 65mm, the Sigma 180 Apo, multiple Nikkors, the Zeiss 50 and 100, as well as the legendary Voigtländer 125mm f/2.5 APO-Lanthar Macro) your rating of this toy-like lens as a 4.7 is laughable IMO A Macro Lens is specifically designed for close-up photography. Macro lenses have a higher photographic magnification and maintain high image quality during magnification. They have shorter minimal focusing distances. Different Macro lens deliver magnification factors of 0.5x - 5x Macro prime lens | Canon RF. $599.00. Canon RF 600mm F11 IS STM. Announced 3 weeks ago. Telephoto prime lens | Canon RF. $699.00. Canon RF 800mm F11 IS STM. Announced 3 weeks ago. Telephoto prime lens | Canon RF. $899.99. Canon RF 24-105mm F4.0-7.1 IS STM. Announced 6 months ago. Zoom lens | Canon RF. $399.00\nCanon MP-E 65mm f/2.8 1-5x Macro Lens. The Canon MP-E 65mm f/2.8 1-5x Macro Lens is a specialty tool for extreme closeup imagery. It renders subjects up to 5x life-size magnification. On a full frame sensor camera you can fill the frame with a grain of rice in vivid detail The Canon RF 85mm F2 MACRO IS STM is a lightweight 85mm prime lens that's still capable of capturing a shallow depth of field and soft background thanks to its fast F2 maximum aperture. The RF 85mm F2 MACRO IS STM offers 5-stops of built-in image stabilisation, which increases to an incredible 8-stops when used with the EOS R5/EOS R6 and their in-body stabilisation systems The RF85mm F2 Macro IS STM lens incorporates a control ring on the lens barrel that can directly adjust numerous settings including shutter speed, aperture, ISO, exposure compensation and more. Located towards the front of the lens it effectively adds a third dial to EOS R and RP cameras, and a fourth dial to EOS R5 and R6 cameras Canon EF-S 35mm f/2.8 Macro Lens Sample Movie See how the compact EF-S 35mm f/2.8 Macro IS STM Lens lets you get close to your subject to capture incredible details. The built-in forward-facing Macro Lite helps illuminate your subjects for well-lit and vibrant photos highlighting fine details\nCanon has introduced a compact 35mm F2.8 IS STM macro lens for crop-sensor DSLRs. Similar to the EF-M 28mm F3.5 Macro lens introduced a year ago, the 35mm F2.8 has a built-in LED ring light.. The lens, which is equivalent to 56mm when mounted on crop body, has a minimum focus distance of just 3 cm (1.2 in.) Canon EOS Rebel T7 DSLR Camera + Canon EF-S 18-55mm + Canon 75-300mm & 500mm Telephoto Lens + Wide Angle & Telephoto Lens + Macro Filter Kit + 64GB Memory + Accessory Kit 4.6 out of 5 stars 59 $699.00 $ 699 . 0 Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 50mm f/2.5 Compact Macro that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout See exactly which lenses that works just for Canon EOS 550D. We give you the best and most popular lenses within each category, such as telephoto, macro and wide angle lenses. Lenses for Canon EOS 550D - Lensora - The Lens Guid The Canon EF 100mm f/2.8 USM Macro Lens is an excellent macro lens - and may be Canon's most fun per dollar lens. This is the lens I most frequently recommend for someone starting out in macro photography - at least most frequently recommend until the Canon EF 100mm f/2.8L IS USM Macro Lens was introduced. The 100 macro is a medium-small lens and is rather light in weight\nThe Canon RF 85mm f2 Macro is a short telephoto lens for the EOS R mirrorless system. Announced in July 2020 it's one of the more affordable lenses in the RF system. The 85mm focal length and f2 aperture makes it perfect for portraits, while close-focusing allows it to double-up as a fairly respectable macro lens with 1:2 or half-actual size magnification Photograph tiny objects in stunning detail with this Canon 35mm macro lens. This unit has a glass-molded aspherical element and an integrated front-facing Macro Lite LED for extra-crisp shots from as little as 5.1 inches away. Equipped with a versatile EF-S mount, this Canon 35mm macro lens works with a variety of Canon APS-C-format DSLR bodies Discover Canon RF 85MM F2 MACRO IS STM lens. With its 85mm focal length, this is an ideal lens for flattering portraits plus macro close focusing and 5-stop Image Stabilizer for excellent versatility Released in 1979, the Canon FD 50mm f/3.5 macro is the second and last 50mm macro lens for the FD mount.. The lens is a new FD mount design, which eliminates the locking ring. It is backward compatible with FD and FL camera bodies\nCanon EF 100mm f/2.8L IS USM Macro Lens for Canon Digital SLR Cameras, Lens Only. 4.9 out of 5 stars 812. $1,299.00 $ 1,299. 00. Get it as soon as Wed, Nov 18. FREE Shipping by Amazon. Other options New and used from $820.00. Canon EF-S 35mm f/2.8 Macro IS STM. 4.7 out. The Canon RF 35mm F1.8 IS STM Macro is a lightweight, versatile lens for Canon's new EOS R system. Promising good close focus capabilities and built-in stabilization, is this the perfect lens for EOS R and RP shooters? Find out in our full review\nSo you don't need to carry your old trusty 100mm macro but you will need better portrait lens. So Canon pushing you to invest in too bulky and heavy f1.2 version because f1.4 still don't exist and big question is when it will happen. Nothing soon I think. Until that Canon RF lens line up is a joke for me and investing in R system is a big mistake Sigma 18-300mm F3.5-6.3 Contemporary DC Macro OS HSM Lens for Canon DSLR Cameras with Altura Photo Advanced Accessory and Travel Bundle 4.5 out of 5 stars 250. $499.00. Canon EF-S 55-250mm F4-5.6 IS STM Lens for Canon SLR Cameras 4.7 out of 5 stars 1,419. $299.00. Canon. Canon EF 100mm f/2.8 USM Macro Lens Canon EF 100mm f/2.8 L IS USM Macro Lens Sigma 105mm f/2.8 EX DG OS HSM Macro Lens Nikon 105mm f/2.8G AF-S VR Micro Lens. The same lenses are shown below with their lens hoods in place. The story here is that you are probably not going to make your 100mm-ish macro lens decision based on size Tokina has announced the release of its new ATX-i 100mm F2.8 Macro lens for full-frame Canon and Nikon DSLR cameras. The ATX-i 100mm F2.8 Macro lens is constructed of nine elements in eight groups and features a 1:1 reproduction ratio at 30cm (11.8in) from the sensor with a minimum focusing distance of 11.5cm (4.5in) Canon has announced the RF 85mm F2 MACRO IS STM lens.This is an 85mm portrait and macro lens that features optical image stabilization. Canon already has an 85mm lens, the RF 85mm F1.2L, however, this new lens is intended to be a more budget-friendly and versatile mid-telephoto macro that can also be used for portraiture\nCanon manufactures a variety of DSLR lenses for all your photography needs. Whether you need a Standard & Medium Telephoto Lens, Wide & Ultra-Wide Zoom Lens, Macro Lens, Tilt-Shift Lens, Telephoto & Super Telephoto Lens, or Refurbished Lens; Canon lenses offer some of the best DSLR lens quality. Zoom Lenses; Macro Lenses; Lens Accessorie This Tokina 100mm f/2.8 Macro is a fantastic lens. It's optical performance is as good or better than the best from Nikon and Canon, and this Tokina's ergonomics, due to its unique focus clutch, is also better than any of Nikon's or Canon's 100mm or 105mm macro lenses With its ability to focus life-size images onto the image sensor, the Canon EF-S 60mm f/2.8 Macro USM offers true macro performance in the EF-S lens series. The effective focal length is approximately 96mm in 35mm format, allowing it to produce breath-taking close-up results, and the minimum focusing distance of just 20cm gets you super close to your subject Best macro lens: close-up lenses for Canon and Nikon DSLRs. By Matthew Richards 08 November 2018. And when it comes to getting in close, there's no beating a proper macro lens\nDue to this, we would highly recommend that any of our readers who own the Canon m50 and are in the market for a solid little macro photography lens seriously consider the Canon EF-M 28mm f/3.5. It can offer you some excellent image quality right out the box, is very easy to use, and comes with a very fair price tag when you consider what you are actually getting for your money when you. Discover your world in macro with Canon's EF-S 60mm f/2.8 Macro USM lens; a the compact, lightweight lens for excellent magnification Sigma 50mm Macro Canon, Sigma Macro Camera Lens for Canon EF, Canon EF Macro Camera Lens, Sigma Macro Camera Lens for Nikon F, Sigma Macro Camera Lens for Nikon AF, Sigma Camera Lenses for Canon 50mm Focal, Sigma Macro Camera Lens for Pentax K, Sigma DSLR Cameras, Canon 50mm Filter in Camera Lens Filters, Canon 50mm Lens Ca We obsess about the details in every aspect of our products, and that's why we are confident to offer a 5 year local warranty across our Mirrorless, DSLR, Digital Video Camera & Lens purchases from authorised Canon Australia sellers from 25th November 2019 Who Should Buy this lens: Macro photographers who want a dedicated macro lens rather than using extension tubes or a close focus filter, and who will use the lens handheld to take advantage of the image stabilization. The Canon 100mm f/2.8L Macro is one of the best choices for macro photographers, but it isn't the only choice\n10 Best Macro Lens Canon 100mm - November 2020 608 reviews scanned. Rank . Product Name. Score . 1. Canon EF 100mm f/2.8L IS USM Macro Lens for Canon Digital SLR Cameras, Lens Only . 9.7. Score. Check Price Now ! 2. Canon EF 100mm f/2.8. 10 Best Canon 100mm Macro Lens - November 2020 608 reviews scanned. Rank . Product Name. Score . 1. Canon EF 100mm f/2.8L IS USM Macro Lens for Canon Digital SLR Cameras, Lens Only . 9.8. Score. Check Price Now ! 2. Canon EF 100mm f/2.8. 10 Best Macro Lens Canon Rebel - November 2020 3,749 reviews scanned. Rank . Product Name. Score . 1. Canon EF-S 35mm f/2.8 Macro IS STM . 9.7. Score. Check Price Now ! 2. Canon EF 50mm f/1.8 STM Lens . 9.6. Score. Check Price Now ! 3. Canon EF-S 24mm f/2.8 STM Lens. 10 Best Canon Macro Lens Adapter - November 2020 5,292 reviews scanned. Rank . Product Name. Score . 1. Canon RF 35mm f/1.8 IS Macro STM Lens, Black - 2973C002 . 9.7. Score. Check Price Now ! 2. Canon EF-S 35mm f/2.8 Macro IS STM . 9.6. Score. Check Price Now ! 3. Canon EF 100mm f/2. 10 Best Canon Macro Lens Extension - November 2020 608 reviews scanned. Rank . Product Name. Score . 1. Canon EF 25 II Extension Tube for EOS Digital Cameras . 9.6. Score. Check Price Now ! 2. Canon EF-S 35mm f/2.8 Macro IS STM . 9.3. Score. Check Price Now ! 3. Viltrox Metal Mount.\nCanon's sharpest 50mm lens, this 50mm Compact-Macro works great for everything for which you'd use a 50mm fixed normal lens, and it focuses super-close for macro shots with no fiddling required. It uses a complex 9-element floating-element design for no distortion and intense sharpness at every distance, and it remains small, light and inexpensive As the Canon EF-S 35mm f/2.8 Macro IS STM is an EF-S lens, that means you can only use it with Canon's APS-C cameras. We've been using it with the Canon EOS 77D. It is a very small and light lens, and would make an ideal walk around lens - the focal length being 56mm (equivalent), it's quite a good option for street photography and a general lens for every day usage If a macro lens is designed to offer focus to infinity, then you absolutely can use it for other purposes. They just behave like an ordinary prime lens, offering sharp image quality, and typically an f/2.8 aperture, which is a decent aperture for portraiture - Canon's 100mm f/2.8 macro lenses (both L-series and regular) are great for that\nSigma Macro Camera Lens for Canon EOS, Sigma Camera Lens for Canon, Canon EF Macro Camera Lens, Sigma Macro Camera Lens for Nikon F, Sigma Camera Lenses for Canon 50mm Focal, Macro/Close Up Camera Lens for Sigma, Macro Camera Lens for Canon EF-S, Sigma Macro/Close Up Camera Lenses for Canon; Additional site navigation Autofocus lens for macro photography up to life-size (1x) magnification. Inner focusing affords a long working distance of 5.9in. (149mm) at 1x. A 3-group floating system results in excellent delineation at all focusing distances. Ring USM for silent and high-speed AF, and full-time manual focusing also provided. Sample Imag Good News! The newly announced Canon RF 85mm F2 Macro IS STM lens is now first in stock and shipping at Amazon US. It is an affordable, close-focusing prime for Canon's full-frame mirrorless system. This new lens costs $599 at Amazon. You can also check price at B&H/ Adorama. A true macro lens will be sharper, more versatile, and easier to handle than any of the add-ons either on the front of the lens or behind it. With extension tubes you lose f-stop(s) and flash becomes quite difficult. Especially as the front of the lens to subject decreases. This can be over come but the lost of IQ can not. Invest in a true. Venus Optics released new variants of their Laowa 100mm f/2.8 2x Ultra Macro APO lens for Pentax K-mount (previously reported here) and Canon EF-mount (with manual aperture). Pre-orders are now open at the Laowa official online store (with international shipping). US retailers (Adorama, B&H) will open their pre-orders in a week or two. Additional information, including technical [\nThe EF 100 mm f /2.8 Macro USM lens is a prime lens made by Canon Inc. It is of the EF lens mount that fits the EOS camera system.There are three versions, the original, a second that adds a USM autofocus motor, and a recently released L series version that incorporates Image Stabilization (IS).. It is a macro lens, meaning that it is capable of reproducing an object the size of the image. Raynox DCR-250 Macro Lens Review. If you're looking to explore the world of macro photography and you're on a limited budget, the Raynox DCR-250 is the perfect solution. If you're interested in this macro lens, I highly recommend purchasing through Amazon (see here) or B&H Photo (see here)\nPackage - Canon - EOS RP Mirrorless 4K Video Camera (Body Only) and RF 35mm F1.8 Macro IS STM Macro Lens for EOS R Cameras User rating, 4.8 out of 5 stars with 84 reviews. (84 Page 16: Macro Flash 13. Macro Flash The Canon Macro Ring Lite MR-14EX or the Macro Twin Lite MT-24EX enables fully automatic macro flash photography up to 1x magnification in E-TTL autoflash mode. Install the Macro Lite Adapter 67 (sold separately) on the filter mounting thread on the front of the lens for macro flash photography If planning to get a Nikon Z 7II for focus stacking I would wait for the Nikon S-line macro lens which undoubtedly will be much sharper than the current Nikon 105m and also the Canon 100mm lens. Thus far the new lenses for the Z cameras have been much sharper and resolve to a much higher degree than the FX lenses (with a few exceptions like the 14-24mm f/2.8 and the FL lenses) For dedicated macro use, I wouldn't use any 100mm lens; I'd get the Canon 180mm f/3.5 L (non-IS) Macro for not much more money instead. Compatibility. As a Canon EF EOS lens, the 100mm f/2.8 L IS Macro works perfectly with every Canon EOS camera ever made, meaning every Canon DSLR and every Canon autofocus film camera made since 1987 The Canon RF 35mm f1.8 IS Macro STM is a mild wide-angle prime lens for Canon's EOS R full-frame mirrorless system. Announced in September 2018, it was one of the first four RF lenses that launched the system, the other three being the RF 50mm f1.2L USM, RF 24-105mm f4L IS USM and the RF 28-70mm f2L USM","domain":"optical_engineering"}
{"url":"http://www.northernnexus.org/business-profiles/electro-optics.html","date":"2023-05-30T01:56:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644915.48/warc/CC-MAIN-20230530000715-20230530030715-00188.warc.gz","language_score":0.9117552638053894,"token_count":171,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__27718425","lang":"en","text":"Electro-Optics Technology is one of several highly specialized and respected technical manufacturers in the Grand Traverse Region. The company, founded in 1987, supplies enabling components and diagnostic equipment for worldwide manufacturers and users of high power laser systems. Among other items, its experienced team of engineers and technicians focuses on OEM and custom applications.\nThe company also develops several products for a variety of indutrial applications. Current products include Faraday rotators and isolators for use with laser diodes, fiber lasers, solid-state lasers, and QCLs. We also stock a complete line of photodetectors used to monitor the output of pulsed, mode-locked and externally modulated CW lasers, and fiber collimators for high power lasers.\nFor more information, visit www.eotech.com/","domain":"optical_engineering"}
{"url":"https://lightwell.en.made-in-china.com/","date":"2019-08-21T10:18:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027315865.44/warc/CC-MAIN-20190821085942-20190821111942-00192.warc.gz","language_score":0.8064042925834656,"token_count":311,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__105492193","lang":"en","text":"LED Screen, LED Display, LED Modules manufacturer / supplier in China, offering 2018 Lw P1.875 Rental LED Screen/Die Casting Rental Indoor LED Display/Support Video LED Screen, Lw P2.5 HD Indoor Electronic Advertising Rental LED Display for Stage, Lightwell LED Signs Module Display LED Supplier Stage Screen LED Advertising Display and so on.\n|Business Range:||Construction & Decoration, Electrical & Electronics, Lights & Lighting, Sporting Goods & ...|\n|Main Products:||LED Screen , LED Display , LED Modules , LED Billboard , LED Panels , LED Signs , Display Panel , ...|\n|Main Markets:||North America, South America, Eastern Europe, Southeast Asia, Mid East, Eastern Asia, ...|\n|Terms of Payment:||LC, T/T, PayPal, Western Union, Money Gram|\n|Average Lead Time:||\nPeak season lead time: one month\nOff season lead time: within 15 workdays\nShenzhen Lightwell LED Display Technology Co., Ltd. Was founded in 2010, specializes in producing LED display, a professional LED factory in China. We have many years′ experience at this field.\nOur products include: Full color, single color and dual color all of that can usage for indoor and outdoor.\nThe products are widely used for shopping malls, entertainment venues, schools, government agencies, trade fair, fair, aiming at the exhibition, press conference, meeting rooms, cinemas, airports, ...","domain":"optical_engineering"}
{"url":"https://yenraphotography.com/lenses/","date":"2024-03-04T14:42:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00107.warc.gz","language_score":0.8089225888252258,"token_count":512,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__169266482","lang":"en","text":"All of my lenses are from Nikon - for the FX system (before mirrorless). I'm sticking with my Nikon D850 as long as I can. Thinking of the Z8 for sure, but holding steady for now.\n- Nikon AF-S NIKKOR 14-24mm f/2.8G ED Lens (my ultrawide lens, with interesting edge distortion)\n- Nikon AF-S NIKKOR 20mm f/1.8G ED Lens (very close focusing - star-like pattern when light glints)\n- Nikon AF NIKKOR 24mm f/2.8D Lens (I called it my Katsucon lens because I got the Gazebo and Atrium with it)\n- Nikon AF-S NIKKOR 24-70mm f/2.8E ED VR Lens (middle of the Nikon trinity of lenses, great all-around)\n- Nikon AF-S NIKKOR 200mm f/2G ED VR II Lens (superlative portrait lens, super heavy but lovely)\n- Nikon AF NIKKOR 35mm f/2D Lens (I called it my Pittsburgh lens when I first got it)\n- Nikon AF-S Nikkor 50mm f/1.4G Autofocus Lens (my nifty fifty)\n- Nikon AF-S NIKKOR 58mm f/1.4G Lens (very special out-of-focus bokeh, less clinical than the 50)\n- Nikon AF-S NIKKOR 70-200mm f/2.8E FL ED VR Lens (the last FX version we'll see)\n- Nikon AF-S NIKKOR 85mm f/1.4G Classic Portrait Lens (what I call my beauty lens)\n- Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED Lens (superb macro lens)\n- Nikon AF-S NIKKOR 105mm f/1.4E ED Lens (possibly even better than the 85mm)\n- Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR Lens (wildlife photography champion)\n- Nikon AF-S NIKKOR 300mm f/2.8G ED VR II Lens (such a gorgeous lens)\nOn top of some of these, I place the Nikon AF-S Teleconverter TC-14E III for a nice extension while maintaining quality.","domain":"optical_engineering"}
{"url":"http://www.travel-in-india.info/2018/02/02/guide-select-perfect-binoculars/","date":"2019-06-25T12:27:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999838.23/warc/CC-MAIN-20190625112522-20190625134522-00140.warc.gz","language_score":0.9452077150344849,"token_count":672,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__16540697","lang":"en","text":"Binoculars are also called as field glasses. They are two telescopes that are mounted side by side to view distant objects effectively. There are different types of binoculars available on the market such as compact binoculars, wide angle binoculars, and image stabilizing binoculars.\nTypes of binoculars on the basis of prism system\nBinoculars are available in mainly two different types of prism systems. One is porro system and other is roof prism system. In Porro prism-based binoculars, the objective is offset from the eye. These binoculars provide enhanced depth perception and a wider FOV (field of view) In roof prism device, the prisms closely overlap each other. This enables objective lens to get inline with the eyepiece. When the lens and the prism are in the same line, you get a slim and streamlined image. This makes them useful for scouting.\nGeneral classification of binoculars:\nStandard Size Binoculars\nA standard binocular is also referred as full-size binocular. It is designed for multipurpose use to capture everything ranging from spectator sports to nature specific observation.\nThis binocular is small in size and light in weight. It is the best choice for people, who want to take it along with them to the concerts, theater, hikes or on hunting trips.\nWide Angle Binoculars\nSuch binoculars are best suited for tracking quick moving action that takes place in largely spaced areas such as racetracks, football fields, and wilderness terrain.\nThese binoculars come with an added zoom functionality that enables the user to enhance the magnification to better focus on the details. Whether you are looking for a distant view or near view, it is the best binocular that gives the benefits of both worlds.\nWaterproof binoculars are best when you want clarity in spite of poor weather conditions such as rain, fog and ice. Nitrogen purged and O-ring sealed binoculars offer exemplary resistance towards fog and water.\nThis binocular comes with a housing that is completely covered using rubber or synthetic material. Armoring protects the device from any possible scratches that it can get with use. It provides grip to the user to hold it comfortably. Armoring prevents any noise when binocular bangs against something.\nCentral focus binocular\nOne wheel is used in this binocular to aim on objects. It can easily focus on close as well as distant objects well. This makes it versatile device.\nNo Focus Binoculars\nThis is an affordable alternative to an “individual eye-piece focus binocular.” The difference is that here the eyepieces are fully locked. As they are properly set at the factory, they can’t be adjusted. This implies that you won’t be able to focus on objects near than 40 yards away. Also, it implies that one can’t adjust the binocular for differences between the right eye and left eye strength.\nEveryone has a different expectation from binoculars. Due to this reason, you will find different type of binoculars with different features in-built into it. So, gaining in-depth information about the technical and performance aspects of binocular will help you buy the right one.","domain":"optical_engineering"}
{"url":"https://editionpost.com/meta-acquisition-will-assist-develop-higher-viewing-optics-for-vr/","date":"2023-03-26T03:02:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945381.91/warc/CC-MAIN-20230326013652-20230326043652-00739.warc.gz","language_score":0.9463227987289429,"token_count":296,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__83863664","lang":"en","text":"As reported by Janko Roettgers, Meta acquired a Colorado-based analysis and growth startup referred to as Gary Sharp Improvements final 12 months in June.\nRoettgers found the acquisition by way of paperwork filed with the U.S. Patent and Trademark Workplace. Meta confirmed the acquisition to Roettgers, stating that “Gary Sharp Improvements helps [Meta] develop higher viewing optics for [its] AR and VR gadgets.”\nGary Sharp, the startup’s co-founder, beforehand served as CTO of RealD, the corporate that pioneered and licensed 3D cinema expertise. LinkedIn posts point out that a minimum of a few of Gary Sharp Improvements’ workers had been introduced over to Meta within the acquisition.\nThe acquisition additionally grants Meta all of Gary Sharp Improvements’ patents and patent purposes, a few of which relate to VR headsets and optics. Roettgers identified one such submitting for a pancake lens that may reduce stray gentle by including extra layers to the lens.\nMeta shipped Quest Professional, which makes use of pancake lenses, in October final 12 months, a number of months after buying the startup. It’s unclear whether or not the startup’s related applied sciences had been used within the manufacturing of Quest Professional, nevertheless it’s prone to turn out to be useful for Meta’s future headsets which is able to seemingly undertake pancake lenses akin to these in Quest Professional.","domain":"optical_engineering"}
{"url":"https://www.vandemon.co.uk/category/exterior/replacement-parts/replacement-mirror-glass/","date":"2023-12-10T10:59:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00698.warc.gz","language_score":0.9555439352989197,"token_count":115,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__49980935","lang":"en","text":"Replace your faulty or damaged wing mirror glass with our range of replacement parts. Whether you've been involved in an accident or your mirror glass has simply worn and clouded over time, we have glass available for most vehicles.\nOur mirror glass is manufactured to OEM standards and is fully 'E' Mark Approved in accordance with European Quality Directives. This means that it is made as a direct replacement. Mirror glass fits pefectly into your exisiting wing mirror and is easy to fit.\nShop our full range of replacement mirror glass for your van below:","domain":"optical_engineering"}
{"url":"https://divorcediva.co.uk/uncategorised/46994/world-outdoor-lighting-market-is-expected-to-grow-significantly-during-the-forecast-period-2019-2025-sars-cov-2-covid-19-analysis/","date":"2020-11-27T17:15:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141193856.40/warc/CC-MAIN-20201127161801-20201127191801-00414.warc.gz","language_score":0.9397450685501099,"token_count":785,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__75378088","lang":"en","text":"The sudden challenges created by the ongoing COVID-19 are captured effectively to exhibit the long term growth projections in the MRFR report on World Outdoor Lighting Market. The growth sectors of the World Outdoor Lighting Market are identified with precision for a better growth perspective.\nAccording to Market Research Future, the global outdoor lighting market has been segmented based on lighting type, distribution channel, application, and region.\nOutdoor lighting is a fixed artificial lighting that is used to brighten the outdoor areas. Outdoor lighting improves the visual performance to increase safety and security in outdoor areas. Demand for smart controls in street lighting systems and need for energy-efficient lighting systems for highways are expected to drive the outdoor lighting market during forecast period. However, the high installation cost of smart lighting is expected to restrain the market during forecast period.\nGlobal outdoor lighting market has been segmented into lighting type, distribution channel, application, and region.\nBy lighting type, the outdoor lighting market has been segmented into LED lamps, HID lamps, plasma lamps, and fluorescent lights. The HID lamps segment is expected to dominate the outdoor lighting market during the forecast period as they offer durability, high lumen output per watt, and are small in size. However, the LED lamps segment is expected to grow at faster rate during forecast period. HID lighting replaces the filament of a light bulb with the capsule of gas. HID lights require a ballast, which carefully controls the voltage supplied to the capsule of the gas. LED lamps provide better illumination than any other type of light. The demand for smart control in street lighting systems is expected to drive the LED lamps market during forecast period. In plasma lighting technology, light comes from a small and single point source. This light output is completely bidirectional and puts more lumens on the ground when it is needed. In August 2018, the European government launched Humble Lamppost project with an aim to save USD 2.46 billion on electricity every year. In this project, 60 to 90 million 25-year-old streetlights have been replaced with more efficient LEDs. This lamppost consists of smart lighting system, application-based wireless control, E-vehicle charging, push-to-talk system, and photovoltaic cells for lamp and mobile phones.\nOn the basis of the distribution channel, the outdoor lighting market has been segmented into retail and commercial. The commercial segment is expected to dominate the outdoor lighting market during the forecast period because outdoor lights are mainly sold in bulk, based on their companies, utility, or specialty distributors.\nBy application, the outdoor lighting market has been segmented into street lighting, highways, stadiums, parking lots, tunnel lights, parks, and others. The street lighting segment is expected to dominate the application segment due to various government initiatives taken for streetlight control systems. The highway segment is expected to grow at the higher rate during the forecast period.\nThe key players in the outdoor lighting market are Philips Lighting Holding B.V.(The Netherlands), General Electric Company (US), Osram Licht AG (Germany), Cree, Inc. (US), Eaton Corporation PLC (Ireland), Hubbell Incorporated (US), Dialight PLC (US), Zumtobel Group AG (Austria), Syska (India), Virtual Extension (Israel), Evluma (US) Halco Lighting Technologies (US), and Masco Corporation (US) among others.\nAbout Market Research Future:\nAt Market Research Future (MRFR), we enable our customers to unravel the complexity of various industries through our Cooked Research Reports (CRR), Half-Cooked Research Reports (HCRR), Raw Research Reports (3R), Continuous-Feed Research (CFR), and Market Research and Consulting Services.\nMarket Research Future\n+1 646 845 9312\nEmail: [email protected]","domain":"optical_engineering"}
{"url":"http://english.phys.hust.edu.cn/info/1043/1048.htm","date":"2019-11-12T16:50:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496665575.34/warc/CC-MAIN-20191112151954-20191112175954-00271.warc.gz","language_score":0.6772409081459045,"token_count":1323,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__199994436","lang":"en","text":"Phone: (027) 87543880-8302\nAcademic Areas: Optical frequency references; Microwave photonics；Optical resonators; Nonlinear optics etc.\nResearch Interests: Optical frequency references; Microwave photonics；Optical resonators; Nonlinear optics etc.\nDr. Lin Received received the Ph.D. degree in optics from Xiamen University, China in 2010. From 2011 to 2013, he was a National Aeronautics and Space Administration (NASA) Post-Doctoral Program Fellow with the Jet Propulsion Laboratory, Pasadena, USA. From 2013 to 2015, he joined the Franche Comté Electronique Mécanique Thermique et Optique—Sciences et Technologies (FEMTO-ST) Institute, Besançon, France as a contractual CNRS engineer. He is presently an Associate Professor in School of Physics, Huazhong University of Science and Technology, Wuhan, China.\nPhD in Optics, 2010, Xiamen University.\n2015.12-present School of Physics, Huazhong University of Science & Technology, China, Associate Professor\n2013.12-2015.11 FEMTO-ST Institute, France, CNRS Contractual Engineer\n2011.07-2013.07 Jet Propulsion Laboratory, NASA/Caltech, USA, NASA Postdoctoral Fellow\n- Guoping Lin, * Romain Martinenghi, Souleymane Diallo, Khaldoun Saleh, Aurélien Coillet, and Yanne K. Chembo, “Spectro-temporal dynamics of Kerr combs with parametric seeding,” Applied Optics 54(9), 2407-2412 (2015).\n- G. Lin * and Y. K. Chembo, “On the dispersion management of fluorite whispering-gallery mode resonators for Kerr optical frequency comb generation in the telecom and mid-Infrared range,” Optics Express 23, 1594-1604 (2015).\n- G. Lin, * S. Diallo, K. Saleh, R. Martinenghi, J.-C. Beugnot, T. Sylvestre, and Y. K. Chembo, “Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators,” Applied Physics Letters 105, 231103 (2014).\n- G. Lin, * S. Diallo, R. Henriet, M. Jacquot, and Y. K. Chembo, “Barium fluoride whispering-gallery-mode disk-resonator with one billion quality-factor,” Optics Letters 39, 6009-6012 (2014).\n- G. Lin and N. Yu, “Continuous tuning of double resonance-enhanced second harmonic generation in a dispersive dielectric resonator,” Optics Express 22, 557-562 (2014).\n- G. Lin, J. U. Fürst, D. V. Strekalov, and N. Yu, “Wide-range cyclic phase matching and second harmonic generation in whispering gallery resonators,” Applied Physics Letters 103, 181107 (2013).\n- G. Lin, J. U. Fürst, D. V. Strekalov, I. S. Grudinin, and N. Yu, “High-Q UV whispering gallery mode resonators made of angle-cut BBO crystals,” Optics Express 20, 21372-21378 (2012).\n- G. Lin, Y. Candela, O. Tillement, Z. Cai, V. Lefèvre-Seguin, and J. Hare, “Thermal bistability-based method for real-time optimization of ultralow-threshold whispering gallery mode microlasers,” Optics Letters 37, 5193-5195 (2012).\n- G. Lin, B. Qian, F. Oručević, Y. Candela, J.-B. Jager, Z. Cai, V. Lefèvre-Seguin, and J. Hare, “Excitation mapping of whispering gallery modes in silica microcavities,” Optics Letters 35(4), 583–585 (2010).\n- G. Lin, O. Tillement, Y. Candela, M. Martini, Z. Cai, V. Lefèvre-Seguin, and J. Hare, “Ultra-low threshold lasing in silica whispering-gallery-mode microcavities with Nd3+:Gd2O3 nanocrystals,” Proc. SPIE Photonics Europe (Best Student Paper Award) 7716, 771622–771622–8 (2010).\n- Souleyman Diallo, Guoping Lin, and Yanne K. Chembo, “Giant thermo-optical relaxation oscillations in millimeter-size whispering gallery mode disk resonators” Optics Letters 46(16), 3834-3837 (2015)\n- Rémi Henriet, Guoping Lin, Aurélien Coillet, Maxime Jacquot, Luca Furfaro, Laurent Larger, and Yanne K. Chembo. \"Kerr Optical Frequency Comb Generation in Strontium Fluoride Whispering-Gallery Mode Resonators with Billion Quality Factor.\" Optics Letters 40(7), 1567-1570 (2015).\n- Khaldoun Saleh, Guoping Lin, and Yanne K. Chembo, “Effect of Coupling and Active Stabilization on the Phase Noise performance of Optoelectronic Microwave Oscillators based on Whispering Gallery Mode Resonators,” IEEE Photonics Journal 7(1), 1-11 (2014).\n- David C. Aveline, Lukas M. Baumgartel, Guoping Lin, and Nan Yu, “Whispering gallery mode resonators augmented with engraved diffraction gratings,” Optics Letters 38(3), 284-286 (2013).\nAwards and Honors\nLogin and edit information","domain":"optical_engineering"}
{"url":"https://i2ctech.com/types-of-axis-network-cameras-explained/","date":"2023-09-25T17:38:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233509023.57/warc/CC-MAIN-20230925151539-20230925181539-00257.warc.gz","language_score":0.9212532043457031,"token_count":1179,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__192324543","lang":"en","text":"Axis Communications is the market leader in network cameras- renowned worldwide for their reliability and incredible clarity. They offer an extensive portfolio of camera options. i2c Technologies is an Axis Communications Solution Gold Partner with 15 years of experience designing and installing Axis camera solutions for a wide range of enterprises. If you’re interested in a camera system for your business, take a look at the innovative Axis camera options that i2c Technologies can offer. Just request a quote and let our experts design the perfect Axis network camera system for your business and your budget.\nPanoramic cameras provide wide-area coverage with just one camera. In certain situations, one panoramic camera can replace many fixed cameras to keep installation and system costs low. There are a wide variety of panoramic camera options including a single sensor, multisensory, and multidirectional cameras. They are ideal for retail, schools, hotels, restaurants, parking lots and more.\nFixed Box Cameras\nAxis fixed box cameras provide excellent image quality and come in a variety of styles for indoor and outdoor use. They provide a fixed angle of view and are suitable for a wide range of applications including traffic surveillance, airports, schools, government buildings, and manufacturing. Their sleek design also serves as a deterrent for would-be offenders.\nFixed Dome Cameras\nFixed dome cameras are compact cameras with a dome casing. The discreet dome casings protect the camera from redirection, defocusing and impact, and disguise which way the cameras are pointing. We offer an extensive variety of fixed dome models for indoor and outdoor use, covering every kind of environment, day and night. Ideal for high-security applications like airports, industrial and critical infrastructure facilities.\nPTZ cameras use pan/tilt/zoom capabilities to provide wide-area coverage and great detail. The cameras have a variety of intelligent features that enable it to move between pre-set positions and zoom in automatically to respond to detected security events, making them ideal for 24/7 monitoring. The indoor and outdoor-ready PTZ domes offer exceptional coverage of large areas and great detail when zooming in and are suitable for harsh environments. They provide maximum protection at minimum cost.\nFixed Bullet Cameras\nFixed bullet cameras are great multi-purpose cameras at a great price. Their small, sleek design looks great in any environment, indoors or outdoors. With built-in IR illumination and HD video quality, they are ideal for perimeter protection, parking lots, and general indoor surveillance and can be installed on walls, ceilings, poles, or in corners.\nThermal cameras outperform a visual camera in low light situations and are ideal for detecting people and objects when 24/7 surveillance is needed, such as perimeter protection and even HIPAA compliant patient monitoring in healthcare facilities. Thermal cameras create images off of the heat that radiates from any object, vehicle or person. These cameras are less sensitive to problems with light conditions, like shadows, backlight, darkness, and even camouflage; and provide images that allow operators to detect suspicious activity.\nModular cameras have two detached parts: A small sensor unit consisting of the image sensor and lens, and the main unit where image processing and network communication takes place. The sensor unit connects via a cable to the main unit, enabling the two parts to be placed separately from each other. They are ideal for ATMs, stores, hotels, investigative operations, as well as mobile environments such as emergency vehicles, buses, and trucks.\nPositioning cameras provide the most comprehensive field-of-view possible. They can be mounted on walls, poles or columns, and provide a panoramic view of 360° and a ground-to-sky view of 135°. Axis positioning cameras feature Radar Autotracking for automatic tracking of detected objects. Thermal and Bispectral options are available. Ideal for Border control, perimeter surveillance, and correctional facilities.\nSpecialty cameras include corner-mounted cameras for installations in elevators, ligature-resistant cameras (also known as anti-ligature) to help prevent self-harm, making them the perfect camera for surveillance in high-security environments like correctional and healthcare facilities. For an aesthetically pleasing look, the casings can be re-painted or brushed steel casings are also available.\nOnboard cameras are small, discreet cameras that are ideal for buses, emergency vehicles, subways, and trains. They can withstand extreme shock and vibration and fluctuating light and temperature conditions. Most onboard camera models include Zipstream technology which provides incredible forensic detail, with lower bandwidth and storage requirements.\nExplosion Protected Cameras\nExplosion-protected cameras are customized IP cameras inside heavy-duty housings that are certified for explosion-prone applications. They are ideal for use in hazardous areas where flammable material (liquids, gas, vapor, or dust) may be present, such as oil and gas operations, chemical plants, critical infrastructure, and manufacturing. These versatile cameras can be used for perimeter security and monitoring operations, as they can provide visual verification of safety information from SCADA systems and the thermal and temperature alarm models can detect leaks and unsafe temperatures.\nAXIS Companion Cameras\nAxis Companion cameras come in a variety of indoor/outdoor affordable mini HD cameras ideal for small businesses, residences, and do-it-yourself installation. The cameras connect to the Axis Companion Recorder, which stores 1-2 months of recordings and includes Axis Companion software, which automatically configures the system when you set it up. Users may view live or recorded video on a PC or mobile device, and wireless camera options are available.","domain":"optical_engineering"}
{"url":"https://www.cwwltd.com/sterilight-genuine-replacement-quartz-sleeves/","date":"2021-04-14T03:51:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038076819.36/warc/CC-MAIN-20210414034544-20210414064544-00275.warc.gz","language_score":0.9206812977790833,"token_count":129,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__12110778","lang":"en","text":"Sterilight Genuine Replacement Quartz Sleeves\nThe quartz sleeve is a long, cylindrical tube of quartz glass intended to protect the UV lamp which is powered by electricity from the flow of water. The lamp is inserted into the tube, and transmits the light through the tube into the water. Sleeves can foul with minerals and other contaminants over time, and should be cleaned whenever the lamp is changed. It’s a relatively simple component, but it’s very necessary to the efficient operation of a UV system. CWW supplies only genuine UV replacement quartz sleeves for Viqua, Sterilight UV Systems.","domain":"optical_engineering"}
{"url":"https://www.croatiancamp.com/how-much-is-a-thermal-imaging-camera/","date":"2020-01-28T17:57:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251779833.86/warc/CC-MAIN-20200128153713-20200128183713-00482.warc.gz","language_score":0.9168253540992737,"token_count":1885,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__89481572","lang":"en","text":"How Much Is A Thermal Imaging Camera\nThe patent covers still images, video, infrared imaging, thermal scanning. although the use of drones is likely to attract questions about how much the cameras and monitors are picking up. Even if.\nHandheld & Aerial Thermal Imaging Cameras for Firefighting In the heat of the battle, a thermal imaging camera (TIC) is indispensable. These vital tools help you see through smoke and monitor the fire’s spread, so you can quickly visualize your plan of attack, locate hot spots, and save lives.\nWatermark Examples For Photographers It’s not the most obnoxious watermark but I would like to see an in-app purchase to remove this feature. Overall, the simplicity of Hyperlapse Mobile should appeal to those just getting involved with. Explore Lea Ramos’s board \"Watermark ideas\" on Pinterest. See more ideas about\nIr 1080p Camera Watch Instructions Dash cameras. infrared rays and glare, providing sharper detail with realistic colors. It works with a 3.0μmx3.0μm high sensitivity image sensor and aperture of 1.8 to guarantee excellent night. But for a limited time, and while supplies last, GeekBuying.com has the Xiaomi Yi action camera\nLast year, Senior Editor Lee Hutchinson played with the FLIR One, a $349 iPhone case that had two embedded cameras to bring you. cheaper than a more industrial thermal imaging system. Difficult to.\nCooled cameras have much higher imaging speeds than uncooled ones. Automation cameras can create images at speeds up to 480 frames per second, ideal for capturing high-speed thermal events and moving.\n2018/11/11 · Thermal imaging camera is composed of basically five major components namely, optic system, detector, amplifier, signal processing, and display. Special thermal imaging cameras intended for fire-service integrate these components in a ruggedized, heat-resistant and waterproof chassis.\n2018/07/25 · For this post, I have put together a collection of the best thermal imaging cameras currently available. UPDATED: June 3, 2019. Infrared cameras are powerful and extremely cost-effective, easy-to-use troubleshooting tools for building, electrical, and mechanical applications. clearly reveal problems from sources of energy loss, moisture intrusion and structural issues to overheating electrical.\n2019/03/23 · A warm body can be detected by thermal imaging equipment from its IR (Infrared) heat signature. It’s a difficult challenge to avoid detection, be it animal or human. Warm blooded. You may be camouflaged in the best concealment there is, but highly visible to IR thermal imaging on the ground or maybe a drone flying overhead.\nThe thermal imaging camera makes images from heat, not light. It allowed Coleman to see the handprint left by residual heat on the wall, but it has a much more practical and important purpose: helping.\nThanks to a thermal imaging camera, which Kanawha County first responders typically. The blackish tones indicate areas where heat is contained, thus warming one’s body. But in the much lighter.\nand what the caloric costs are of losing much-needed insulating fur during the winter. Does the disease stay in the system, and at what level? He’s also interested in whether the thermal-imaging.\nWhile we’ve been intuitively guessing other peoples’ level of drunkenness for centuries, computers can do it much faster and more accurately. Warm blood rushes in, creating hot spots that thermal.\nDJI’s first camera using this technology will be the Zenmuse. You can find more information about the Zenmuse XT, along with specifications, thermal imaging photo samples and much more on the.\n2016/11/03 · However, thermal imaging cameras always display the temperature of a measuring point in the thermal image, and a conversion based on the emissivity coefficient is performed. Likewise, the thermal imaging camera must be regularly calibrated correctly so that the incoming heat radiation can be correctly recorded and a temperature can be calculated.\nThe development of the thermal imaging camera attachment and app raises the question of the vitality of the \"general public use\" standard in a time of fast-changing technological innovation. And the.\nThe Best Online Photography Courses Oct 18, 2016. In this buyer's guide we had a look through the online photography courses at Udemy, to find those that received the best ratings and cost less. Jan 14, 2017. Digital photography technology is continually changing, however, the principles behind good photography don't.\n. larger area in a much shorter period of time.\" This was illustrated by the drone flying along the water main, which runs from the Te Tahi water treatment plant, through to Pirongia and Te Awamutu.\nThe thermal imager is only one tool in the firefighter’s toolbox and we all know this can only be an advantage if the end user is fully trained and understands its capabilities and/or limitations.\n2018/08/08 · Thermal imaging camera has the ability to detect infrared light and visualize that a human eye can understand. It is all due to the versatility and usefulness of thermal cameras that they are widely used by various professionals like firefighters, electricians, rescue team and others. Types of Thermal Imaging Cameras. Cooled detectors\nThermal imaging, near-infrared illumination, low-light imaging and are the three most commonly used night vision technologies. Unlike the other two methods, thermal imaging works in environments without any ambient light. Like near-infrared illumination, thermal imaging can penetrate obscurants such as smoke, fog and haze.\n2017/03/28 · How To Build A Profitable UAS & Infrared Thermal Imaging Business March 28, 2017 Now is the time, as never before, to profit with unmanned aerial systems (UAS) & aerial infrared imaging for thermal inspection of commercial buildings.\nA thermal imaging camera should be as essential as SCBA Cost is a common. accept TICS but only one for the officer on the truck. Really? Makes about as much sense is only one set of SCBA per truck,\nCharleston Sc Wedding Photographer Charleston SC Wedding Photographer Columbia SC Wedding Venue Engagement and Bridal Portraits Palmetto Collegiate Center Lexington SC Wedding Photographer. Wedding Photography in Columbia SC. Best wedding photographers in South Carolina Columbia Charleston Greenville Augusta Charlotte RIver Road and Jasmine House Irmo SC. Take a look\nI’ve had my eye on thermal imaging cameras for a long time. But the Compact’s sensor is just 206 by 156 pixels, so there’s only so much that focusing can do. Seek Thermal’s CompactXR model has the.\nThe usual way to combat this energy inefficiency is with a thermal imaging camera, a device that overlays the temperature of an object with a video image. These cameras are hideously expensive so [Rob.\nSure the Galaxy S7 Edge has a great camera, and the LG G5 has a innovative modular port — but do they have thermal imaging? Cat, a rugged phone manufacturer. One other such way was checking how.\nThe drone’s capabilities currently include a gimbal stabilized 4K DJI Zenmuse camera while simultaneously running one of our.\nWithout the aid of a thermal camera you would never know where they are and how much damage they have done to the insulation in your walls. The blue shadows are the tunnels and damage. Using the thermal imaging camera I was able to find 1 GFCI breaker for the.\nA Staffordshire charity has been awarded £10k for a project using a thermal imaging camera to show how much heat is lost from the average home The aim is help people living in the Holmcroft area to.\nAn up-and-coming energy firm is giving households with abnormal annual bills or debt thermal imaging cameras to prompt them to save money. It is interesting to see how much heat can leave a room.\nFree Images Black And White Building Their report suggests a lens-free set up to optimize the efficiency of the. an extra dimension to the resulting images. Housed in an eight-story, white brick building, the nonprofit organization provides drug and alcohol counseling and free. As I was only able to capture this\nA thermal imaging camera (TIC) is a specialized camera which converts infrared radiation into a visible image, allowing the camera’s user to visualize a scene more completely, even if it is obscured by smoke and other visual disturbances. There are a number of uses for thermal imaging cameras, ranging from firefighting to public health, and.\nBlack And White Sensual Photography Boudoir photography, or sensual photography, is a photographic style featuring intimate, Other common styles include a low-key, deliberately grainy black-and -white, reflecting the influence of art nudes, early erotic photography, and film noir. Buy black and white photographic prints, fine art nude black and white\nThe biggest issue with thermal imaging is the prohibitively expensive cost of thermal imaging cameras, which can be over $1,000 per unit, which may be too much to ask of companies that may find the.","domain":"optical_engineering"}
{"url":"https://theskyguys.ca/can-use-drones-measure-post-disaster-air-quality/","date":"2022-09-28T07:17:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335124.77/warc/CC-MAIN-20220928051515-20220928081515-00165.warc.gz","language_score":0.93196040391922,"token_count":352,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__261318151","lang":"en","text":"Can We Use Drones To Measure Post-Disaster Air Quality?December 26, 2017\nAfter 52,999 tragic wildfires in America alone this year, two European companies are working together to find a solution to clear the air after a disaster.\nTekever Autonomous Systems and Photonics21, a think-tank specializing in the study of light direction have teamed up to launch a rapid response drone system.\nThe project being funded by Photonics for $3.6 million will include creating a fixed-wing drone with a novel photonics sensor that can detect and measure toxic fumes.\nAccording to the press release, “It works by beaming the sampled air in a ‘multipass cell’ to increase the total optical path length for exposure with a super-continuum laser, allowing the tiniest concentrations of complex, toxic gas mixtures to be detected.”\nThe data will be useful in the aftermath of disasters such as volcanic eruptions, chemical fires, and wildfires as the drone can fly through tough environments to provide real-time air quality data, which can be used for urgent decision-making during deployment of emergency services and evacuations.\nThe unmanned aerial vehicle, which can cover an 80 kilometre radius at speeds up to 120 kilometres per hour will also be able to map out areas that are too dangerous for humans to be in.\n“For the first time, a drone reaching altitudes of up to 4,000 metres will be able to detect fine traces of air molecules that are dangerous to our health with a state-of-the-art laser sensor,” said Tekever Project Coordinator, André Oliveira.\nA prototype is expected to launch by November 2018.","domain":"optical_engineering"}
{"url":"http://ltp.caasastro.org/telescopes/","date":"2024-04-20T03:11:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817474.31/warc/CC-MAIN-20240420025340-20240420055340-00373.warc.gz","language_score":0.913993239402771,"token_count":222,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__36392031","lang":"en","text":"The telescope available for checkout is a 4.5″ Orion StarBlast that will gather several hundred times more light than the naked eye, and magnify up to 60 times. It is suitable for observing the moon, brighter planets such as Saturn and Jupiter, and it is capable of “splitting” some double stars.\nWith its F/4 Newtonian optical design, the instrument is particularly suited to wide-field views of bright comets, and many “deep sky” objects, such as star clusters, nebulae and even some of the larger galaxies.\nPlease view this short video (12 min) on the LTP program and how to properly use the telescope.\nTo activate the finder scope, use the round knob on the side. Turn the knob all the way to its farthest position. It may take up to five seconds before the laser becomes visible. Turn the knob in reverse to lower brightness.\nWith the power on, you can see the red dot in the center. Please always remember to turn the finder OFF when not in use!","domain":"optical_engineering"}
{"url":"https://people.smp.uq.edu.au/TimMcIntyre/php/laboratories/index.php?e=14","date":"2021-12-01T09:47:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359976.94/warc/CC-MAIN-20211201083001-20211201113001-00137.warc.gz","language_score":0.9072872400283813,"token_count":137,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__120527778","lang":"en","text":"This applet simulates the passing of light through a set of slits (or lines) ranging from a single slit up to many slits forming a diffraction grating.\nThe displays show the image as would be seen on a screen 1000 mm from the grating, and a plot of the intensity as a function of position.\nScrollbars allow the number, width and spacing of the slits to be varied.\nThe simulation allows two separate wavelengths to be passed through the slits simultaneously - to use only one wavelength set both inputs to the same value. The controls allow the wavelength to be scanned up or down. This can be achieved in coarse or fine steps.","domain":"optical_engineering"}
{"url":"https://corrently.energy/en-it/blogs/news/wissenswertes-zu-monokristallinen-solarzellen-fakten-vorteile-und-anwendungen","date":"2024-04-19T04:56:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817289.27/warc/CC-MAIN-20240419043820-20240419073820-00063.warc.gz","language_score":0.9137722253799438,"token_count":563,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__162891381","lang":"en","text":"Energy production is one of the most important challenges of our time as we strive to meet our energy needs with clean and renewable resources. Solar cells are one of the most promising technologies for generating clean energy, and monocrystalline solar cells are particularly effective. In this article you will learn everything you need to know about monocrystalline solar cells, from their properties and advantages to their various applications.\nWhat are monocrystalline solar cells?\nMonocrystalline solar cells are a type of solar cell made from a single crystal. This type of solar cell is particularly popular due to its high efficiency and performance. The production of monocrystalline solar cells is more complex than the production of other types of solar cells, but this is reflected in their higher efficiency.\nHow do monocrystalline solar cells work?\nMonocrystalline solar cells use the photovoltaic effect to convert sunlight into electricity. The photovoltaic effect occurs when photons from sunlight hit the solar cell and knock electrons out of the silicon crystal. These free electrons are then captured by an electric field inside the solar cell and flow through an external circuit to generate electrical energy.\nWhat are the advantages of monocrystalline solar cells?\nMonocrystalline solar cells offer several advantages compared to other types of solar cells:\nHigh Efficiency: Monocrystalline solar cells have higher efficiency than other types of solar cells, which means they can generate more electricity per square meter.\nLongevity: Monocrystalline solar cells are strong and durable and can last for decades.\nAesthetically Pleasing: Monocrystalline solar cells are a uniform black color that looks more aesthetically pleasing on the roof than other types of solar cells.\nDisadvantages of monocrystalline solar cells\nThe main disadvantage of monocrystalline solar cells is their higher price compared to other types of solar cells. This is because the manufacturing process is more involved and requires more materials.\nAnother disadvantage of monocrystalline solar cells is their lower performance at high temperatures. As the temperature increases, the performance of monocrystalline solar cells decreases, reducing their efficiency.\nHow are monocrystalline solar cells manufactured?\nManufacturing monocrystalline solar cells is a complex process that requires special equipment and expertise. First, silicon is melted in a furnace at very high temperatures. The liquid silicon is then poured into a mold where it slowly cools and solidifies into a single crystal.\nOnce the crystal is formed, it is sliced into thin slices that can be used as solar cells. These discs are then doped with other materials, such as phosphorus, to create an electrical charge. They are then assembled into solar cells and built into modules .","domain":"optical_engineering"}
{"url":"http://www.label.com/laser.html","date":"2017-04-27T20:29:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122621.35/warc/CC-MAIN-20170423031202-00447-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9221568703651428,"token_count":119,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__157932642","lang":"en","text":"Laser Cutting and Fabrication\nBradley offers a high precision laser cutting service to provide you with new possibilities for efficient component manufacture. Our industry leading laser cutting equipment, combined with our highly skilled, customer motivated staff allows us to provide you with world class service.\nLaser cutting is the most accurate method of cutting and can be used on a whole range of materials. Our advanced equipment and high performance, computer controlled productions are perfect for any laser application from cutting to engraving and marking.\nContact Bradley Nameplate today and find out how our laser cutting systems can help your business.","domain":"optical_engineering"}
{"url":"https://www.linkepet.co.il/read-blog/81_advantages-of-high-power-200w-outdoor-ultra-thin-led-floodlight.html","date":"2021-09-25T02:47:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057589.14/warc/CC-MAIN-20210925021713-20210925051713-00694.warc.gz","language_score":0.9432846307754517,"token_count":472,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__56064875","lang":"en","text":"In life, LED floodlights are used in many places. At present, in order to be used in many fields, many types of LED flood lights have been designed, such as 200w LED flood lights, 400w LED flood lights, 100w LED flood lights, etc. Therefore, why are LED floodlights loved and reused? Let us look at the advantages of high power 200w outdoor slim led floodlights.\n1. The LED flood light has low power consumption, saves power, and the energy saving effect is also very obvious.\nLED flood lights consume very little power. Generally, LEDs operate at 2-3.6V and 0.02 to 0.03A. Their power consumption does not exceed 0.1W. Compared with incandescent light bulbs, LED power consumption is only one-eighth of incandescent light bulbs; compared with traditional sodium lamps, power consumption is only one-third, and the energy saving effect is obvious.\n2. LED flood light is small and light, easy to install and maintain\nLED is a small chip encapsulated in epoxy resin. There are no loose parts in the lamp body, so it is very small and very lightweight, easy to install and maintain.\n3. Long service life\nUnder the appropriate voltage and current conditions, the normal life can reach 100,000 hours; under urban electrical conditions, the expected life is not less than 50,000 hours. If it lights for ten hours a day, the situation is 365 days a year. In the following, it can be used continuously for more than 14 years. It is a real long-life light source.\n4, sufficient light\nThe LED light source can use three primary colors of red, green and blue. Under the control of computer technology, these three colors have 256 levels of gray, which can be arbitrarily combined into multiple colors to form different combinations of light colors, thereby obtaining rich color effects.\n5. Environmental protection\nLED floodlights are made of non-toxic materials. Unlike fluorescent lamps, even if the lamp body is damaged, they will not cause environmental pollution. There is no ultraviolet, infrared and radiation in the LED spectrum, which can effectively protect the eyes. At the same time, LEDs can also be recycled and reused, which is a true green light source.","domain":"optical_engineering"}
{"url":"http://www.jaanpak.com/product/evacuated-tube-design/","date":"2017-11-17T22:59:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934804019.50/warc/CC-MAIN-20171117223659-20171118003659-00271.warc.gz","language_score":0.9286572337150574,"token_count":122,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__207513907","lang":"en","text":"Evacuated Tube Design\nImagine a transparent vacuum flask that allows light to enter but restricts it from escaping the vessel. That is the basis of the Evacuated Tube technology in a nutshell. It’s a double layered glass vessel with a vacuum in the space between the two layers of glass. The core of this vessels can trap enough light on a cloudy day to cook a meal. Also, coupled with a ‘thermal battery’ – a material that collects and stores heat through the day and uniformly releases that heat at night – this technology can also be used for night-time cooking.","domain":"optical_engineering"}
{"url":"https://alsanabel.qa/dentist_en/laser-clinic/","date":"2023-12-03T01:29:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100476.94/warc/CC-MAIN-20231202235258-20231203025258-00473.warc.gz","language_score":0.9232937693595886,"token_count":165,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__88885834","lang":"en","text":"A dental laser is a cutting-edge technology focused beams of light to perform precise and minimally invasive dental procedures. Dental lasers are safe, -efficient, and offer several advantages over traditional dental instruments.\nOne of the primary uses of dental lasers is in soft tissue procedures. They can be used to reshape or remove gum tissue, treat gum disease, and perform periodontal surgeries. The laser energy precisely targets the affected area, resulting in less bleeding, minimal discomfort, and faster healing compared to conventional methods.\nDental lasers are also used in tooth decay treatment. They can remove decayed portions of the tooth and prepare the tooth for a dental filling. Laser treatment for cavities is often less invasive and may not require anesthesia. The laser can precisely target the decayed area, preserving more healthy tooth structure.","domain":"optical_engineering"}
{"url":"https://edmlife.com/apple-granted-patent-to-block-video-recording-photos-at-music-events/","date":"2023-12-03T09:41:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100499.43/warc/CC-MAIN-20231203094028-20231203124028-00878.warc.gz","language_score":0.9638315439224243,"token_count":293,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__120727597","lang":"en","text":"When attending clubs and festivals in this era of technology, too many people are more engaged with recording the event on their mobile devices as opposed to actually experiencing it live. Apple has been seeking since 2011 to solve this problem with a patent, and the patent was granted yesterday. In order to stop both moving and still photography, the camera would detect an infrared signal and interpret the data. The signal could be used to disable video recording and still photos. This technology could also be used to prevent still photography in ‘No Photography’ locations and video recording in movie theaters.\nApple explains as follows: “For example, an infrared emitter can be located in areas where picture or video capture is prohibited, and the emitter can generate infrared signals with encoded data that includes commands to disable the recording functions of devices. An electronic device can then receive the infrared signals, decode the data and temporarily disable the device’s recording function based on the command.”\nThe technology also has some more positive uses such as automatically displaying information about what is being photographed or viewed.\nApple describes “an infrared emitter can be located near an object and generate infrared signals with encoded data that includes information about that object. An electronic device can then receive the infrared signals, decode the data and display the information about the object to the user.”\nNo matter how you feel about the patent, it’s interesting that Apple is exploring this technology!","domain":"optical_engineering"}
{"url":"http://theindustrytrends.com/3d-imaging-market/","date":"2020-07-12T10:28:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657134758.80/warc/CC-MAIN-20200712082512-20200712112512-00314.warc.gz","language_score":0.8622481822967529,"token_count":788,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__77613326","lang":"en","text":"A new global 3D imaging market research report is a in-depth study of 3D imaging industry including essential frameworks. Global 3D imaging Market report highlights market revenue, share, growth and 3D imaging market size. Also accentuate 3D imaging industry contribution, product image, and provision. It scrutinize a competitive summary of market between forecast period 2019 to 2028.\nThe Global 3D imaging Market report includes a overall industry outline to provide clients with a entire idea of 3D imaging market situation and its strategies. The insight review of the research is followed by segmentation, 3D imaging application, and region wise analysis of the market to insure that clients are well proficient about each section. The 3D imaging report also includes main point and facts of Global 3D imaging Market with its sales and growth.\nClick To Get Sample Copy of Report @ https://marketresearch.biz/report/3d-imaging-market/request-sample\nThe report collect all the 3D imaging industry information from primary and secondary sources. Further, segmented the 3D imaging market into major applications, types and key vendors around the globe. The major 3D imaging market players includes Inc., Microsoft Corporation, Stemmer Imaging Ltd., Zebra Imaging Inc., Konica Minolta, Infineon Technologies, GE Healthcare, Hewlett-Packard Corporation, Lockheed Martin Corporation, Google Inc. and Panasonic Corporation. geographically the region cover in 3D imaging market are Asia-Pacific, Latin America, North America, Europe and the Middle East & Africa.\nThe segmentation outlook for world 3D imaging market report:\nSegmentation on the basis of display technologies: Anaglyph, Stereoscopy, Auto-stereoscopy, Holography, Volumetric display. Segmentation on the basis of imaging solutions: 3D Modelling, 3D scanning, Layout and animation, 3D rendering, Image reconstruction. Segmentation on the basis of hardware: 3D Display, 3D sensor. Segmentation on the basis of industry verticals: Healthcare and medical, Defense and security, Industrial application, Architecture and Engineering, Media and entertainment, Others\nThe research 3D imaging report will enhance your decision-making power by helping you to –\n– Enhancing 3D imaging market activities by proper structuring your product development and designing sales strategies.\n– Clear understanding the 3D imaging market dynamics and developments to develop business strategies.\n– Found new market strategies and efficient ways to assist competition.\n– 3D imaging report helps to create merger and acquistion opportunities by analysing the market vendors.\n– Analyse the region wise 3D imaging market potential which helps to design region wise strategies.\n– Understand the competitive outline in the Global 3D imaging market.\n– Take important business decisions by trusting on the astute opinions from 3D imaging industry expertise.\nClick To Inquire For Report: https://marketresearch.biz/report/3d-imaging-market/#inquiry\nWhy MarketResearch.Biz ?\n– Technically renowned study with overall 3D imaging industry knowhow.\n– Robust research methodology of 3D imaging market.\n– Based on complete research, we offer clear view of real 3D imaging market scenario and help clients with making important business judgement.\n– Comprehensive archive of 3D imaging market research reports to meet our client’s needs.\n– Focus on 3D imaging drivers, restraints, opportunities, and threats till 2028.\nShortly, 3D imaging report claims about historical, present and foresee 3D imaging market impulses.\nMr. Benni Johnson\nMarketResearch.Biz (Powered By Prudour Pvt. Ltd.)\n420 Lexington Avenue, Suite 300, New York City, NY 10170, United States\nTel: +1 347 826 1876","domain":"optical_engineering"}
{"url":"https://hcss.secure-platform.com/a/gallery/rounds/67/details/3116","date":"2019-11-20T22:34:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670635.48/warc/CC-MAIN-20191120213017-20191121001017-00261.warc.gz","language_score":0.9628726840019226,"token_count":177,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__158733796","lang":"en","text":"Surfacing is one of the most time consuming and expensive process in track construction. SWI is the first company in North America to use Gedo IMS technology for track scanning on their current project. Gedo can capture track position in the 3D space just by rolling it along the track and only needs to be calibrated every 300 feet. The collected data is then directly entered into the tamper through a flash drive; and tamper automatically aligns the track based on that data. Gedo has significantly reduced the manual work, where we could surface 1000 feet of track in a day, now we can surface 3000 feet. Gedo is also being used for generating as-builts and quality control, where the file generated by it can be compared with the designed CAD file. Due to its high accuracy, efficiency and simplicity, this equipment will change the way tracks are constructed globally.","domain":"optical_engineering"}
{"url":"http://www.livechennai.com/healthnews.asp?newsid=31808","date":"2017-11-21T18:58:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806422.29/warc/CC-MAIN-20171121185236-20171121205236-00683.warc.gz","language_score":0.9232088923454285,"token_count":203,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__84089798","lang":"en","text":"Researchers from the University of Rochester in New York, US have developed a new non-invasive retinal imaging technique that could prevent vision loss in diseases like glaucoma. The paper appeared in the journal PNAS.\nSay the researchers, The new technique called multi-offset detection, which images the human retina - a layer of cells at the back of the eye that are essential for vision - was able to distinguish individual retinal ganglion cells, or RGCs, which bear most of the responsibility of relaying visual information to the brain. The death of these RGCs causes vision loss in glaucoma, the researchers said. You only have 1.2 million RGCs in the whole eye, so a loss of 100,000 is significant. The sooner we can catch the loss, the better our chances of halting the disease and preventing vision loss. The technique we used offers the opportunity to evaluate many cell classes that have previously remained inaccessible to imaging in the living eye.","domain":"optical_engineering"}
{"url":"http://www.foodproductiondaily.com/Product-Categories/Software-IT-RFID/Cognex-claims-package-sensor-is-highly-flexible","date":"2013-05-18T17:57:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696382584/warc/CC-MAIN-20130516092622-00078-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9295487403869629,"token_count":545,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__11773573","lang":"en","text":"The Cognex Corporation said its new Checker 3G sensor series differs from the original Cognex Checker and Cognex Checker 200 vision systems in that no PC is required to setup inspections.\n“Instead, the SensorView Teach Pendant, with its one click set-up technology, allows the user to set up jobs right on the line for any number of 3G vision sensors and the teach pendant can be left connected for real-time application monitoring,” said a spokesperson for the company.\nShe said that the SensorView provides production statistics and a user-definable view of the parts that the sensor is inspecting, enabling operators to monitor their production process or change jobs without a PC.\nThe spokesperson told FoodProductionDaily.com that there is no limit to the types of packages the system can monitor from boxes to pouches to bottles, cartons and cans.\nAccording to the spokesperson, the 3G series can track and detect the presence of a variety of food and beverage packaging features such as caps, date codes, properly sealed flaps, labels, safety seals, liquid level and price sticker.\nMoreover, she continued, the Checker 3G vision sensor is actually two sensors in one, in that it can be configured, by the customer, as either a presence sensor or a measurement sensor:\n“We did this so our customers did not have to worry about purchasing the correct sensor before they have had a chance to experiment with it on their line. A presence sensor can be used to inspect the presence or absence of a feature while the measurement sensor is used to verify the height, width or diameter of components.\n“Users can switch between either modes and deploy it in the mode that best suits their application,” added the spokesperson.\nShe said that Checker is also the only sensor on the market capable of detecting and tracking over 6,000 parts per minute in varying positions along the production line, overcoming imprecise part positioning and delivering consistent, precisely timed pass/fall results.\nThe spokesperson maintains that as the vision system costs under $1,000 (€755) it provides an easy and affordable system for OEMs and end users, and manufacturers can use the sensors to reduce machinery downtime in the fact that they allow a line operator create, save and change inspections, without stopping production.\n“Users can also signal the vision sensor to learn new features of a product when a product changeover occurs such as changing a label on a bottling line, again helping to minimise downtime,” she added.\nThe company said the new sensor series is available globally and has been localized into nine languages.","domain":"optical_engineering"}
{"url":"http://spexzone.info/faq.php","date":"2020-02-22T11:40:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145657.46/warc/CC-MAIN-20200222085018-20200222115018-00400.warc.gz","language_score":0.8693357706069946,"token_count":316,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__118170527","lang":"en","text":"1. Why Spexzone?\nWe have a complete range, pin – sharp vision checking, advanced technology engineering and high precision eye measurement.\n2. Does Spexzone sell prescription glasses?\nYes. We sell prescription glasses with inbuilt vision checking station for precise fitting.\n3. If I require a specific brand, will I get in Spexzone?\nYes. Spexzone is a multibranded spectacle store.\n4. Do you sell sunglasses?\nYes we sell all kinds of sunglasses for al ages and both Men and Women.\n5. Will spexzone spectacle come with a guarantee or warranty?\nYes every purchase comes with a guarantee and service card.\n6. Do you sell prescription glasses for children?\nYes Spexzone has prescription glasses for kids with wide range of collection to choose from.\n7. Can I trust the authenticity of the products?\nAll our products are 100% authentic and sourced from original dealers and distributors. We offer a 2 year manufacturing warranty with every purchase.\n8. What if m frames need adjustment after I receive them?\nAll frames are thoroughly checked, aligned and verified by our expertise. Minor adjustments will be done at any time whenever required from the nearest Spexzone outlets.\n9. Do you sell prescription lenses?\nYes. We do sell varifocal or progressive lenses.\n10. How long will it take for you to deliver my prescription lenses?\nIt will take normally 1-7 working days, however this varies according to the type of lenses ordered.","domain":"optical_engineering"}
{"url":"https://www.viablogger.com/web-stories/wavefront-lasik-how-its-done-and-what-it-is/","date":"2023-03-31T10:25:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949598.87/warc/CC-MAIN-20230331082653-20230331112653-00445.warc.gz","language_score":0.9352946281433105,"token_count":219,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__140290762","lang":"en","text":"How wavefront Lasik is done and what it is.\nBy employing a laser to reshape the cornea, traditional LASIK surgery may simply adjust for focusing power.\nA version of that standard process called wavefront LASIK corrects for spatial variations in vision based on data from a wavefront sensor.\nA wavefront sensor essentially measures the eye itself. Measurements of the wavefront indicate the imperfections in the lens that lead to optical aberrations\nThe cornea is specifically shaped by Wavefront to provide corrected vision. In many areas, Wavefront provides superior outcomes than conventional LASIK.\nDue to generated spherical aberration, LASIK has several possible adverse effects, like as halos or glare.\nThe addition of wavefront technology will be welcomed by everyone thinking about having Lasik laser eye surgery.\nIt provides the information the eye surgeon needs to perform a more successful and successful surgery.\nA new technique is now accessible to eye surgeons, improving the accuracy of vision correction. It is known as a \"wavefront.\"","domain":"optical_engineering"}
{"url":"https://searsoptical42.wordpress.com/2010/05/21/2-for-99-99-complete-pair-of-eyeglasses-single-vision/","date":"2017-04-26T00:02:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121000.17/warc/CC-MAIN-20170423031201-00066-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.7941232323646545,"token_count":170,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__150106034","lang":"en","text":"2 for $99.99 Complete Pair of Eyeglasses (Single Vision)\n2 complete pairs for $99.99 prescription eyeglasses (frame and lenses) with single vision, scratch-resistant plastic lenses and select frames – same prescription, or 2 complete pairs for $149.99 prescription eyeglasses (frame and lenses) with lined bifocal, scratch-resistant plastic lenses and select frames – same prescription. Valid prescription required. Valid at participating locations. Cannot be combined with other offers, discounts, vision or insurance plans, previous purchases or prior orders. Not valid in OK and PR. Void in La Jolla and El Cajon, CA and where prohibited. Some restrictions apply. See Optical Associate for details. Associate: apply discount to lenses. The Sears trademark is registered and used under license from Sears Brands, LLC.","domain":"optical_engineering"}
{"url":"https://www.refractiveeyesurgery.org/Eye-Tests/Slit-Lamp-Exam","date":"2017-07-25T18:48:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549425352.73/warc/CC-MAIN-20170725182354-20170725202354-00606.warc.gz","language_score":0.91783607006073,"token_count":153,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__7570082","lang":"en","text":"A slit lamp is a special microscope that enables your provider to see the structures in the front of your eye. A slit lamp uses an intense beam of light to illuminate your eye. Using this light, your provider examines the cornea, iris, lens, and anterior chamber of your eye. With additional lenses, your provider can also examine the back part of your eye, including your optic nerve and retina.\nIn many cases, providers use an orange dye called “fluorescein” when examining your cornea. The dye spreads across your eye to help your provider see any damage such as tiny cuts, scrapes, tears, foreign objects, or infections on your cornea. Your natural tears will wash the dye away shortly after the test.","domain":"optical_engineering"}
{"url":"http://www.hcsb.k12.fl.us/ertt/studentsites/SU/stevenb/focal_length_and_fratio.htm","date":"2015-08-05T10:24:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-32/segments/1438044160065.87/warc/CC-MAIN-20150728004240-00069-ip-10-236-191-2.ec2.internal.warc.gz","language_score":0.8746713399887085,"token_count":162,"dump":"CC-MAIN-2015-32","global_id":"webtext-fineweb__CC-MAIN-2015-32__0__130514086","lang":"en","text":"Focal length and f-ratio\nThe focal length determines how wide an angle the telescope can view with a given eyepiece or size of a CCD detector or photographic plate. The f-ratio (or focal ratio, or f-number) of a telescope is the ratio between the focal length and the aperture (i.e., diameter) of the objective. Thus, for a given aperture (light-gathering power), low f-ratios indicate wide fields of view. Wide-field telescopes (such as astrographs) are used to track satellites and asteroids, for cosmic-ray research, and for surveys of the sky. It is more difficult to reduce optical aberrations in telescopes with low f-ratio than in telescopes with larger f-ratio.","domain":"optical_engineering"}
{"url":"https://www.automatedproduction.co.uk/case-study/glass-disc-vision-inspection-solution-for-coffee-filter-disc/","date":"2022-06-25T13:05:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103035636.10/warc/CC-MAIN-20220625125944-20220625155944-00617.warc.gz","language_score":0.8906171917915344,"token_count":315,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__279102276","lang":"en","text":"A fully automated quality control and inspection system to handle and inspect two types of plastic coffee filter disc.\nCoffee filter discs are loaded into a bulk hopper direct from the customer’s moulding machine. The centrifugal feeder orientates the discs and feeds them onto a conveyor transfer. The conveyors transfer the orientated discs from the centrifugal feeder onto a transparent rotating disc where they are presented to a vision inspection system.\nReject discs are diverted off the disc and good discs are transported via a chute into a waiting box.\nAn operator manually loads empty boxes onto 2 two-tier conveyors, one per side, which will automatically position the boxes prior to loading with discs.\nThe system operates at up to a rate of 1800 parts/minute (900 parts/minute/side).\nThe system comprises of:\nInspection Disc and Vision System\nInspection Disc – Coffee filter discs are presented to the vision system on a rotating transparent disc; four cameras are mounted around the glass inspection disc.\nThe system inspects from all three planes: 1. Top for damage and OCR; 2. Bottom for diameter and damage; 3. Side for damage, height and profile.\nCoffee filter discs that fail the vision inspection are rejected from the disc into a common reject chute via pneumatically operated air nozzles. An additional reject station identifies and sort coffee filter discs based on OCR. All chutes are fitted with a check sensor to confirm successful rejection of products.","domain":"optical_engineering"}
{"url":"http://www.fortleevision.com/fortleevision/bbs.asp?Sec=110","date":"2018-12-18T19:00:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829568.86/warc/CC-MAIN-20181218184418-20181218210418-00487.warc.gz","language_score":0.8440303802490234,"token_count":172,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__18236924","lang":"en","text":"At Fort Lee Vision, we combine strict quality controls, with the latest in computerized manufacturing, to a finished product that exceeds industry standards.\nUsing only premium, top quality lenses from our extensive inventory, we fill your prescriptions quickly and accurately.\nOur premium line of lenses includes special features such as:\n- Progressive - For distance, working on computers, and reading, without ugly lines.\n- Ultra Thin - High Index 1.74\n- Thin - High Index 1.67\n- Anti-reflective - Lens treatment that eliminates\nglare from computer screens and\noverhead lights. Excellent for night driving without fatigue.\n- Transition - Lenses that change from\nlight to dark, reacts to amount of U.V. ray present outdoors.\n- Polarized - Glare-resistant lens that\nallows for true color perception.","domain":"optical_engineering"}
{"url":"https://mgm.duke.edu/personnel/elliott-sorelle","date":"2023-10-03T01:55:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511023.76/warc/CC-MAIN-20231002232712-20231003022712-00024.warc.gz","language_score":0.6841744184494019,"token_count":584,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__236500256","lang":"en","text":"Single-cell biology, host-pathogen interactions, computational modeling, quantitative microscopy, image processing\nMusic, cooking, reading, hiking, golf\nYecies, D. et al. Speckle modulation enables high-resolution wide-field human brain tumor margin detection and in vivo murine neuroimaging. Scientific reports 9, 1-9 (2019).\nSoRelle, E. D. et al. Spatiotemporal tracking of brain-tumor-associated myeloid cells in vivo through optical coherence tomography with plasmonic labeling and speckle modulation. ACS nano 13, 7985-7995 (2019).\nDutta, R. et al. Real-time detection of circulating tumor cells in living animals using functionalized large gold nanorods. Nano letters 19, 2334-2342 (2019).\nSi, P. et al. Gold Nanoprisms as Optical Coherence Tomography Contrast Agents in the Second Near-Infrared Window for Enhanced Angiography in Live Animals. ACS Nano 12, 11986-11994 (2018).\nLiba, O. et al. Speckle-modulating optical coherence tomography in living mice and humans. Nature communications 8, 1-13 (2017).\nCampbell, J. L. et al. Multimodal assessment of SERS nanoparticle biodistribution post ingestion reveals new potential for clinical translation of Raman imaging. Biomaterials 135, 42-52 (2017).\nWinetraub, Y., SoRelle, E. D., Liba, O. & de la Zerda, A. Quantitative contrast-enhanced optical coherence tomography. Applied physics letters108, 023702 (2016).\nSoRelle, E. D. et al. A hyperspectral method to assay the microphysiological fates of nanomaterials in histological samples. Elife 5, e16352 (2016).\nSen, D. et al. High-resolution contrast-enhanced optical coherence tomography in mice retinae. Journal of biomedical optics 21, 066002 (2016).\nLiba, O., SoRelle, E. D., Sen, D. & de La Zerda, A. Contrast-enhanced optical coherence tomography with picomolar sensitivity for functional in vivo imaging. Scientific reports 6, 1-12 (2016).\nSoRelle, E. D., Liba, O., Hussain, Z., Gambhir, M. & de la Zerda, A. Biofunctionalization of large gold nanorods realizes ultrahigh-sensitivity optical imaging agents. Langmuir 31, 12339-12347 (2015).","domain":"optical_engineering"}
{"url":"http://claytontund949.suomiblog.com/two-details-you-do-not-recognize-relative-to-lasik-eye-medical-procedure-5789505","date":"2019-01-24T10:29:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584520525.90/warc/CC-MAIN-20190124100934-20190124122934-00607.warc.gz","language_score":0.9512316584587097,"token_count":880,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__129454350","lang":"en","text":"Two Details You Do Not Recognize Relative To LASIK Eye Medical ProcedureThe eye can be taken a look at with relative ease as to both its function and its structure. A practical evaluation consists of the ability to relocate the orbit and the response of the pupil to light and accommodation.\nThe function of the eye may be checked in several ways. The client might be asked to identify illuminated letter or items of differing sizes on what is understood as the Snellen chart.\nConversely, the evaluation of the structural part of the eye might be made in numerous ways. Tension within the eyeball is measured by a \"tonometer.\" In specific illness, particularly in glaucoma, the stress in the eyeball is increased considerably.\nNevertheless, it should be well remembered that a patient with an eye problem might have other issues too. Typically other physical conditions are main and impact the eye as a consequence. The appearance of the eye can notify the physician and the patient to problems in some disruptions of other parts of the body even before other symptoms provide themselves.\nConsequently, one's dependence on sight is emphasized when one faces a momentary or possible permanent loss of this crucial sense. When restorative steps are sought, particular types of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some individuals are bothered with the reality that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to motivate decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgery is another form of vision correction. The only difference is that with this type of surgery, one's vision is corrected completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, permitting much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgery, there are still disadvantages that individuals should know. Probably, the main reason that this type of eye surgery has actually ended up being well accepted is due to the fact that most of its cases had actually succeeded.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate portions of the eye, most individuals weblink say that the operation can be extremely dangerous.\nTo puts it simply, a easy error could nearly cause an person's life time loss of sight. It is important to think about lots of factors before choosing whether LASIK eye surgical treatment is the ideal restorative step one has to undergo.\n2. It is not a best treatment\nLASIK eye surgical treatment may fix your vision but it does not always indicate that it can give you a twenty-twenty. Even if statistical reports reveal that 70% of the clients might have 20/20 vision, this does not always indicate they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not always be the ideal eye surgical treatment the way most individuals view it\nAlternatively, the evaluation of the structural part of the eye may be made in a number of ways. It ought to be well remembered that a patient with an eye problem might have other problems. Typically other physical conditions are primary and affect the eye as a effect. The look of the eye can inform the physician and the patient to difficulties in some disturbances of other parts of the body even before other signs provide themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://pangealogical.com/2016/10/23/introducing-the-worlds-blackest-material-vantablack/","date":"2018-08-19T00:36:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213903.82/warc/CC-MAIN-20180818232623-20180819012623-00306.warc.gz","language_score":0.9374492168426514,"token_count":201,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__117803167","lang":"en","text":"British scientists created the original Vantablack (Virtually Aligned NanoTube Arrays) in 2014, which then held the record for the blackest material in the world. But they’ve outdone themselves and made a new Vantablack that can absorb up to 99.8% of light.\nThe material is made from carbon nanotubes. The nanotubes are so small that light photons can’t get inside, but instead fit into the small spaces between the tubes, where they are captured. So that the photons aren’t reflected back and the material seems to just absorb the laser beams. Vantablack absorbs more than just visible light, and is effective across a whole range of the spectrum.\nWhats the point of making a material such as this you ask?\nWell this material could have a whole host of applications such as reducing light pollution in telescopes, improving infrared cameras or to increase the absorption of heat in solar power technology.","domain":"optical_engineering"}
{"url":"https://onlinenewspost365.com/32958-2/","date":"2023-10-01T06:10:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510781.66/warc/CC-MAIN-20231001041719-20231001071719-00329.warc.gz","language_score":0.939513087272644,"token_count":176,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__265408859","lang":"en","text":"New ‘switch’ could power quantum computing\nScientists from MIT and Harvard University have created a novel method for connecting particles by using a laser to place individual rubidium atoms close to the surface of a light lattice. This could aid in the creation of powerful quantum computing systems.\nResearchers are now able to couple a single photon, or light particle, with a single atom of rubidium, which is a metal. The new method is described in a paper that was published today in the journal Nature.This gives the photon and the atom the ability to change the other particle’s quantum state, making it possible for quantum-level computing to take place.\nIn addition, the researchers anticipate that their method will enable them to scale up the amount of quantum computing processing that can be performed by increasing the number of beneficial interactions that take place within a relatively small space.","domain":"optical_engineering"}
{"url":"https://www.ndtunlimited.com/ble-led-100-vivid-uv-a-led-replacment-bulb","date":"2019-11-11T20:03:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496664437.49/warc/CC-MAIN-20191111191704-20191111215704-00046.warc.gz","language_score":0.8984101414680481,"token_count":107,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__47019274","lang":"en","text":"BLE-LED-100, VIVID UV-A-LED Replacement Bulb. Convert your mercury vapor HID lamp to modern LED technology. Rated life is 10x longer (50,000 hours based on average use) than a mercury vapor HID bulb (5,000 hours based on average use). Instant-On Operation. Over 50% cooler than HID. Less environmental waste with fewer bulbs and energy efficient. Comes with patented bulb saver that keeps bulb upright in housing and maintains alignment through usage, increasing longevity.","domain":"optical_engineering"}
{"url":"https://dailylifereview.com/24-70-adorama/","date":"2021-03-04T12:36:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178369054.89/warc/CC-MAIN-20210304113205-20210304143205-00584.warc.gz","language_score":0.8414177298545837,"token_count":4663,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__233853105","lang":"en","text":"Top 8 24 70 Adorama\nFinding your suitable readers for 24 70 adorama is not easy. You may need consider between hundred or thousand products from many store. In this article, we make a short list of the best readers for 24 70 adorama including detail information and customer reviews. Let’s find out which is your favorite one.\n527 reviews analysed\nNikon AF-S FX NIKKOR 24-70mm f/2.8E ED Vibration Reduction Zoom Lens with Auto Focus for Nikon DSLR Cameras\n- Fast f/2.8 constant aperture with an electromagnetic diaphragm\n- Sensational image quality and sharpness with virtually no distortion, Focal Length Range : 24 to 70 millimeter\n- Minimum Focus Distance : 35 to 50 millimeter focal length : 1.2 feet (0.38 meter) from focal plane\n- 24, 28, 70 millimeter focal lengths : 1.3 feet (0.41 meter) from focal plane\n- Dimensions : Approx\n- 88.0 millimeter maximum diameter x 154.5 millimeter (distance from camera lens mount flange)\n- 4 stops of Vibration Reduction for handheld and low light shooting, Nonstick glass makes it easier to wipe off water, dirt and smudges\n- Evolution of Nikon’s legendary 24 to 70 millimeter workhorse.Type:Fmount, Type E AF S lens with built in CPU and F mount.Lens Elements:20\nThe AF-S NIKKOR 24-70mm f/2.8E ED VR improves upon nearly every aspect of its acclaimed predecessor-sharpness, speed, consistency, control and durability plus vibration Reduction image stabilization technology-and the results are stunning. A truly versatile wide-angle to short telephoto lens characterized by its constant f/2.8 maximum aperture and electromagnetic aperture mechanism, The revised optical design incorporates a unique aspherical extra-low dispersion element, in addition to three aspherical, two extra-low dispersion, and one high refractive index elements, to help reduce chromatic aberrations and distortions throughout the zoom range pair it with a Nikon full-frame high-resolution DSLR, and achieve new levels of sharpness and clarity. From Studio work to field assignments, environmental to events, stills to HD video, when chasing the decisive moment, you’ll always know which lens to grab.Features: optical precision to the edge of the frame – a first for NIKKOR lenses, A new aspherical extra-low dispersion (ASP/ED) element is paired with traditional as, ED and HRI elements for a thrilling new level of optical precision. Photos and videos take on a beautiful balance of sharpness and soft blur effects, virtually free of flare, ghosting, coma, chromatic or spherical aberration, even at the far edges of the frame. For those who thrive on image quality, The AF-S NIKKOR 24-70mm f/2.8E ED VR delivers.Versatility, speed and durability – 24-70mm is the sweet spot of the zoom range for many photographers, great for everything from landscapes and studio work to weddings and press events. The F/2.8 constant aperture allows for faster shutter speeds to freeze fast action, renders a beautiful bokeh blur and performs brilliantly in low light. Add an electromagnetic diaphragm for fast auto-exposure control plus the protection of Nikon Fluorine Coat on the front and rear glass, and you’ve got the ultimate workhorse for nearly any situation.4.0 stops of vibration. When using vibration reduction, press the shutter-release button halfway and wait for the image in the viewfi nder to stabilize before pressing the shutter-release button the rest of the way down\nFrom the Manufacturer\nStunning performance. Newfound inspiration.\nMeet your new must-have lens, the evolution of a legendary workhorse. The AF-S NIKKOR 24-70mm f/2.8E ED VR improves upon nearly every aspect of its acclaimed predecessor sharpness, speed, consistency, control and durability plus Vibration Reduction image stabilization technology and the results are stunning. Pair it with a Nikon full-frame high-resolution DSLR, and achieve new levels of sharpness and clarity. From studio work to field assignments, environmental to events, stills to HD video, when chasing the decisive moment, you’ll always know which lens to grab.\nIn pursuit of ultimate image quality\nOptical precision to the edge of the frame\nA first for NIKKOR lenses, a new Aspherical Extra-Low Dispersion (ASP/ED) element is paired with traditional AS, ED and HRI elements for a thrilling new level of optical precision. Photos and videos take on a beautiful balance of sharpness and soft blur effects, virtually free of flare, ghosting, coma, chromatic or spherical aberration, even at the far edges of the frame. For those who thrive on image quality, the AF-S NIKKOR 24-70mm f/2.8E ED VR delivers.\nThe go-to lens\nVersatility, speed and durability\n24-70mm is the sweet spot of the zoom range for many photographers, great for everything from landscapes and studio work to weddings and press events. The f/2.8 constant aperture allows for faster shutter speeds to freeze fast action, renders a beautiful bokeh blur and performs brilliantly in low light. Add an electromagnetic diaphragm for fast auto-exposure control plus the protection of Nikon’s fluorine coat on the front and rear glass, and you’ve got the ultimate workhorse for nearly any situation.\nSteadier than ever\n4.0 stops of Vibration Reduction*\nTo complete the evolution, the AF-S NIKKOR 24-70mm f/2.8E ED VR also includes Nikon’s Vibration Reduction image stabilization technology. It reduces camera shake and vibration up to ~4.0 stops*. Capture sharp, steady handheld stills and HD videos, and shoot at slower shutter speeds in low-light situations without sacrificing sharpness. Versatility, enhanced.\n*Based on CIPA Standard. This value is achieved when: FX-format compatible lenses are attached to an FX-format digital SLR camera and zoom lenses are set at the maximum telephoto position.\n- AF-S NIKKOR 24-70mm f/2.8E ED VR\n- LC-82 82mm Snap-On Front Lens Cap\n- LF-4 Rear Lens Cap\n- HB-74 Bayonet Hood\n- CL-M3 Semi-soft Lens Case\n- Warranty Card\nBeach Camera Nikon 24-120mm f/4G ED VR AF-S NIKKOR Lens for Nikon Digital SLR (Certified Refurbished)\n- This Certified Refurbished product is manufacturer refurbished it shows limited or no wear\n- Includes all original accessories plus a 90 day warranty\n- Compact and versatile 5x standard zoom lens with f/4 maximum aperture\n- Extended range on Nikon DX-format D-SLR cameras\n- Nikon VR II (Vibration Reduction) Image Stabilization, Nano Crystal Coat, 2 Extra-low Dispersion (ED) Elements\n- 3 Aspherical Lens Elements\nCompact and versatile 5x standard zoom lens with F/4 maximum aperture perfect for landscapes, portraits, weddings and distant subjects offering a constant maximum aperture to maintain exposure settings throughout the entire zoom range.Extended range on Nikon DX-format D-SLR cameras angle of view is equivalent to a focal length of 36-180mm in FX/35mm format.Nikon VR II (vibration Reduction) image stabilization vibration Reduction, engineered specifically for each VR NIKKOR lens, enables handheld shooting at up to 4 shutter speeds slower than would otherwise be possible, assuring dramatically sharper still images and video capture.Nano Crystal Coat further reduces ghosting and interior flare across a wide range of wavelengths for even greater image clarity.2 extra-low dispersion (ED) elements offers superior sharpness and color correction by effectively minimizing chromatic aberration, even at the widest aperture setting.3 aspherical lens elements aspherical lens elements virtually eliminate coma and other types of aberration, even when shooting at the widest available aperture.M/A focus mode switch enables quick changes between manual and autofocus operation.Internal focus (provides fast and quiet autofocus without changing the length of the lens, retaining working distance throughout the focus range.Exclusive Nikon Silent Wave Motor (swm)enables fast, accurate and quiet autofocus.Nikon super integrated coating (enhances light transmission efficiency and offers superior color Con…\nCanon EF 24-70mm f/4.0L IS USM Standard Zoom Lens\n- L Series standard zoom lens delivers superb image quality in a compact, lightweightdesign\n- 2 aspheric and 2 UD lens elements for high image quality throughout the entire zoom range\n- Full macro shooting mode with up to 0.7x magnification,easily accessible with a one touch switch at the extreme telephoto end\n- Image stabilization effective up to 4 shutters peed stops and Hybrid IS compensates for both angular and shift types of camera shake for macro shooting\n- Resistant to dust and water, enabling shooting even in harsh and rigorous conditions\nL Series standard zoom lens delivers superb image quality in a compact, lightweightdesign 2 aspheric and 2 UD lens elements for high image quality throughout the entire zoom range Full macro shooting mode with up to 0.7x magnification,easily accessible with a one touch switch at the extreme telephoto end Image stabilization effective up to 4 shutters peed stops and Hybrid IS compensates for both angular and shift types of camera shake for macro shooting Resistant to dust and water, enabling shooting even in harsh and rigorous conditions\nFrom the Manufacturer\nEF 24-70mm f/4L IS USM\nThe EF 24-70mm f/4L IS USM is the perfect zoom to complement full-frame DSLRs like the EOS 6D. With 2 aspheric and 2 UD elements, the EF 24-70mm f/4L IS USM delivers high- quality images with excellent detail throughout the entire zoom range. A 9-blade circular diaphragm delivers beautiful, soft backgrounds. It offers a minimum focusing distance of 1.25 ft./0.38m across the entire zoom range and has a macro mode at the telephoto end with up to 0.7x magnification (minimum focusing distance becomes 7.87 in./0.2m) and is easily accessible with a one-touch switch. It features a Hybrid IS system with up to 4 stops of stabilization, compensating for both angular and shift types of camera shake, delivering effective stabilization even in macro. Inner focusing and ring-type USM deliver, fast, quiet AF, and full-time manual focus is available for manual focusing even while in AF mode. The durable EF 24-70mm f/4L IS USM is sealed for excellent dust and water resistance plus has fluorine coating on the front and rear elements reducing smears and fingerprints. Compact and lightweight, it’s the perfect L-series lens for photographers on the go.\n- Focal Length & Maximum Aperture: 24–70mm, 1:4\n- Lens Construction: 15 elements in 12 groups\n- Diagonal Angle of View: 84º–34º\n- Focus Adjustment: Inner focusing system\n- Closest Focusing Distance: 1.25 ft. / 0.38m\n- Filter Size: 77mm\n- Max. Diameter x Length, Weight: 3.3 x 3.7 inches, approx. 21oz. / 83.4 x 93mm, approx. 600g\nNikon AF-S FX NIKKOR 24-70mm f/2.8G ED Zoom Lens with Auto Focus for Nikon DSLR Cameras\nFrom the Manufacturer: Fast-aperture, high performance wide-angle zoom optimized for FX and DX-format sensors and features Nikon’s ED Glass and Nano Crystal CoatFast, wide-angle to medium Telephoto AF-S zoom lens optimized for edge-to-edge sharpness on both the Nikon FX (23.9 x 36mm) and DX format image sensors Three Extra-low Dispersion (ED) elements and PGM aspherical lenses control chromatic aberrations while enhancing sharpness and contrast, even at the widest aperture settings Nikon’s Silent Wave Motor (SWM) enables ultra high-speed auto focusing with exceptional accuracy and powerful, super-quiet operation Focus as close as 14.9 inches M/A focus mode switch enables quick response to changing situations between manual and auto focus operation Enhanced optical formulas engineered to produce exceptional sharpness, contrast and color, rendering outstanding image integrity Exclusive Nano Crystal Coat further reduces ghosting and flare for even greater image clarity Internal Focus (IF) provides fast and quiet auto focusing without changing the length of the lens, retaining subject-working distance through the focus range Rugged construction with professional-grade dust and moisture resistance . Features picture angle with 35mm (135) format – 84° – 34°20’ and picture angle with nikon DX format – 61° – 22°50’ . Dimensions (approx.) (from the cameras lens mounting flange) – 83 x 133 mm\nFrom the Manufacturer\n- Fast-aperture, high performance wide-angle zoom optimized for FX and DX-format sensors and features Nikon’s ED Glass and Nano Crystal Coat\n- Fast, wide-angle to medium Telephoto AF-S zoom lens optimized for edge-to-edge sharpness on both the Nikon FX (23.9 x 36mm) and DX format image sensors\n- Internal Focus (IF) provides fast and quiet auto focusing without changing the length of the lens, retaining subject-working distance through the focus range\n- Rugged construction with professional-grade dust and moisture resistance\nCanon EF 24-70mm f/2.8L II USM Standard Zoom Lens\n- 24 70 millimeter focal length, 38.4 112 millimeter equivalent focal length on Canon APS C cameras\n- F2.8 constant maximum aperture\n- F22 minimum, Ring type ultrasonic type AF motor with full time manual focusing\n- 82 millimeter filters, Closest Focusing Distance: 0.38 meter/1.25 feet\n- Image Stabilization : No. Focus Adjustment Inner focusing with USM. Diagonal Angle of View 84° 34°. Weight 1.7 pound\n- Purchase this product between May 1, 2016 and July 30, 2016 and get 13 months of free damage protection from Canon. The product must be registered within 30 days of the purchase date to be eligible\nMeeting the ever-increasing demands on image quality that digital photography brings, the redesigned EF 24-70mm f/2.8L II USM is the latest update to the acclaimed L-Series of EF optics, re-establishing a new standard for superb optics, high-end durable construction and performance in professional zoom lenses. A standard focal length zoom lens, it features a large aperture throughout its focal length. Filter size: 82 mm, Closest Focusing Distance: 1.25 feet. Maximum magnification (x) – 0.21(at 70mm)\nCanon EOS 5D Mark IV Full Frame Digital SLR Camera with EF 24-70mm f/4L IS USM Lens Kit\n- 30.4 MP full frame CMOS sensor for versatile shooting\n- Up to 7.0 frames per second continuous shooting speed\n- 61 point AF system with 41 cross points for expanded vertical coverage\n- ISO range 100 32000 with 50 102400 expansion. Magnification: Approx. 0.71\n- 4K video recording at 30p or 24p and in camera still frame grab of 8.8MP images\n- Touch screen LCD monitor\nThe EOS 5D Mark IV camera builds on the powerful legacy of the 5D series, offering amazing refinements in image quality, performance and versatility. Canon’s commitment to imaging excellence is the soul of the EOS 5D Mark IV. Wedding and portrait photographers, nature and landscape shooters, as well as creative videographers will appreciate the brilliance and power that the EOS 5D Mark IV delivers.\nSony SEL2470GM E-Mount Camera Lens: FE 24-70 mm F2.8 G Master Full Frame Standard Zoom Lens\n- SONY EMOUNT LENS: 35mm full frame format, instant auto / manual focus selection, focus hold button. The minimum focus distance is 0.38 meter\n- NATURAL, LIFELIKE IMAGERY: ED and Super ED glass elements deliver breathtaking texture and detail\n- REDUCED ABERRATION: Two aspherical elements and an extremely precise XA element maximize resolution\n- 9 BLADE APERTURE: SEL2470GM lenses have a 9 blade circular aperture for a gorgeous bokeh effect\n- NANO AR COATING: Allows for accurate light transmission to improve clarity, contrast and quality\n- SPECS: Aperture range f/2.8 to f/22, min focus distance 1.24 ft, max magnification ratio 0.24 x\n- MORE SPECS: Angle of view 84-34 deg. (APS-C 61-23 deg.), 35 mm equivalent focal length 36-105 mm\n- CAMERA COMPATIBILITY: Make sure this fits by first entering your camera’s model number\n- IN THE BOX: Hood (ALC-SH141), lens front cap (ALC-F82S), lens rear cap (ALC-R1EM), lens case\nThe Sony FE 24-70mm F2.8 GM Zoom Lens is the ultimate choice for those seeking the highest possible optical performance for portrait, travel and event photography or even simple everyday shooting. Built with three aspherical elements including a newly developed, extremely precise XA (extreme aspherical) element that reduces aberration and delivers the ultimate resolution throughout the entire zoom range and aperture range. ED (Extra-low-Dispersion) glass element and Super ED glass element keep chromatic aberration to a minimum while maximizing resolution and bokeh without any unnatural coloration. To maximize usability this lens also features a dust/moisture resistant design, AF/MF switch, circular aperture, Nano AR coating, compact, a direct drive SSM (Super Sonic wave Motor) focusing system that is super smooth and quiet, making it an ideal choice for shooting both still images as well as movies.\nTamron SP 24-70mm f/2.8 Di VC USD G2 Lens for Canon EF + Tamron Tap-in Console with Altura Photo Advanced Accessory and Travel Bundle\n- INCLUDES: Tamron SP 24-70mm f/2.8 Di VC USD G2 Lens for Canon EF + Tamron Tap-in-console For Canon + AirBag Packable Bag and Camera Insert + SanDisk 64GB C10 Ultra UHS-I SDXC Memory Card + Altura Photo Mini Tripod with Pistol Grip + Altura Photo Rapid Fire Wrist Strap + Altura Photo Hard-Shell Case + Altura Photo Accessory Kit + 3 Sizes MagicFiber Microfiber Lens Pouch\n- HIGH PRECISION LENS: Characterized by apt focusing speed and image stabilization, the Tamron SP 24-70mm f/2.8 Di VC USD G2 is a revised fast standard zoom covering a versatile wide-angle to portrait-length range.\n- SOPHISTICATED optical design with two extra refractive elements, three low dispersion elements, three glass-molded aspherical elements, and one hybrid aspherical element helps to suppress aberrations and distortion.\n- COMPATIBLE with all Canon Cameras, including EOS 7D Mark II, 70D, 77D, 80D, Rebel T3, T3i, T4i, T5, T5i, T6, T6i, T6s, T7, T7i, SL1, SL2 APS-C Cameras, and EOS 5D Mark III, 5D Mark IV, 6D Mark II, 5DS, 5DS R, 1Dx Mark II Full Frame DSLR Cameras.\n- TAMRON AUTHORIZED DEALER. Includes Tamron USA 6-Year Warranty.\nBy our suggestions above, we hope that you can found 24 70 Adorama for you.Please don’t forget to share your experience by comment in this post. Thank you!\nOur Promise to Readers\nWe keep receiving tons of questions of readers who are going to buy 24 70 Adorama, eg:\n- What are Top 10 24 70 Adorama for 2020, for 2019, for 2018 or even 2017 (old models)?\n- What is Top 10 24 70 Adorama to buy?\n- What are Top Rated 24 70 Adorama to buy on the market?\n- or even What is Top 10 affordable (best budget, best cheap or even best expensive!!!) 24 70 Adorama?…\n- All of these above questions make you crazy whenever coming up with them. We know your feelings because we used to be in this weird situation when searching for 24 70 Adorama.\n- Before deciding to buy any 24 70 Adorama, make sure you research and read carefully the buying guide somewhere else from trusted sources. We will not repeat it here to save your time.\n- You will know how you should choose 24 70 Adorama and What you should consider when buying the 24 70 Adorama and Where to Buy or Purchase the 24 70 Adorama. Just consider our rankings above as a suggestion. The final choice is yours.\n- That’s why we use Big Data and AI to solve the issue. We use our own invented, special algorithms to generate lists of Top 10 brands and give them our own Scores to rank them from 1st to 10th.\n- You could see the top 10 24 70 Adorama of 2020 above. The lists of best products are updated regularly, so you can be sure that the information provided is up-to-date.\n- You may read more about us to know what we have achieved so far. Don’t hesitate to contact us if something’s wrong or mislead information about 24 70 Adorama.","domain":"optical_engineering"}
{"url":"https://nexgrab.com/product/lorex-lbv2531u-1080p-hd-analog-add-on-security-camera/","date":"2021-12-08T15:08:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363515.28/warc/CC-MAIN-20211208144647-20211208174647-00272.warc.gz","language_score":0.7355183362960815,"token_count":296,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__136474441","lang":"en","text":"Item Condition: New\nThis item is brand new, unopened and sealed in its original factory box.\nModel Number: LORLBV2531U\nPart Number: LBV2531U\nWarranty: 2 YEARS LIMITED\nReturn Policy: You can return your purchase for up to 30 days.\nWhat’s In the Box: Lorex LBV2531U 1080p HD Analog Add-on Security Camera\nHigh definition 1080p image sensor IR cut filter ensures accurate color representation Night vision range up to 130 ft. in ambient lighting and 90 ft. in total darkness Close-up recognition in the dark with SmartIR Antiglare feature ensures clear images under strong lighting conditions ClearNight imaging for superior low light performance, improving recording efficiency Split glass design minimizes IR reflection Weatherproof (IP66) for outdoor and indoor installations Extreme temperature performance from -22deg F up to 140deg F Vandal-resistant design with durable polycarbonate housing and cable pass-through bracket Versatile ceiling or wall mounting options Compatible with Lorex(R) D841, DV700FS, DV800, DV900, LHV2000, LHV5100, D241, and D441 DVRs Includes 60 ft. UL(R) rated extension cable, mounting kit, power adapter, and quick-start guide","domain":"optical_engineering"}
{"url":"https://tacticalservices.com.au/led-light-signs/","date":"2019-07-22T03:26:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527474.85/warc/CC-MAIN-20190722030952-20190722052952-00019.warc.gz","language_score":0.8628827929496765,"token_count":422,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__171130535","lang":"en","text":"LED Light Signs – Sleek, Thin & High Efficiency\nOur LED light signs emit beautiful soft white light (CRI>80) and start instantly with no flickering, no humming and no RF interference. With a luminous efficacy of more than 100 Lm/W you can achieve energy savings of up to 70% when replacing traditional fluorescent light up signs.\nThe long life & low maintenance reliability of our ultra-Thin LED signs is further enhanced through a special circuit design that ensures that a single damaged LED does affect the entire panel.\nLED technology is unique in that it produces a brilliant, yet clear light that is easy to read both close up and from a distance. Also, it stands out boldly in the night and is even intense enough to see when the sun’s shining. This means that no matter what time of day, and regardless of whether your customers are walking or driving past, they can get a clear impression of your sign’s message or logo.\nOur LED light signs may be suspended, mounted or built in to fit any surface. The energy efficiency of LED lighting combined with lower maintenance cost delivers immense cost savings when replacing traditional lighting.\nOur LED light signs can also be customised with unique range of framing to suit your business.\nLED Light Signs Product Range\n|Products||Dimensions||Power Consumption*||Luminous Flux|\n|TAC3060-1.5KG||295 X 595 X 9MM||24W- .52¢ PH||2400 LM|\n|TAC6060-3KG||595 X 595 X 9MM||36W- .78¢ PH||3600 LM|\n|TAC30120-3.75KG||295 X 1195 X 9MM||40W- .87¢ PH||4000 LM|\n|TAC60120-7.5KG||595 X 1195 X 9MM||48W- 1.05¢ PH||3600 LM|\n* Based on 21.92c ph inc gst","domain":"optical_engineering"}
{"url":"http://www.weldinghelmets.co/auto-darkening-welding-helmets/","date":"2021-03-02T10:53:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178363809.24/warc/CC-MAIN-20210302095427-20210302125427-00571.warc.gz","language_score":0.9231282472610474,"token_count":141,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__162417548","lang":"en","text":"Auto Darkening Welding Helmets are amazing welding helmets that have a clear lens when you don’t have the welding machine going but within 1/25,000 of a second will turn to dark in order keep your eyes safe.\nThe Auto Darkening Welding lens is a great convenience when you’re welding so you have no issues welding while you would normally be pulling down your dark lens. The auto darkening lens will also protect you against UV and IR wavelengths. Many Auto Darkening welding helmets have high and low sensitivity adjustment as well as automatic power on and off.\nMake sure you look into an auto darkening welding helmets when searching for eye protection for your welding projects.","domain":"optical_engineering"}
{"url":"https://blog.vode.com/bid/390577/led-light-quality-is-kind-of-a-big-deal","date":"2023-12-11T02:51:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103464.86/warc/CC-MAIN-20231211013452-20231211043452-00786.warc.gz","language_score":0.9670169949531555,"token_count":462,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__119785796","lang":"en","text":"Many people take their light quality as seriously as their morning coffee.\nAccording to KNX Today, the task of specification has become less about what the fixture looks like and more about the light quality coming from it. As a result of individual point sources of LED indoor lighting, the beam of light distributed has become a bigger part of the design process and the structural components have become less so. In fact, companies like Vode Lighting have made it their goal to consciously minimize and reduce the lighting fixtures and related hardware. Lighting designers are not as concerned now about whether a pendant fixture has a brushed bronze finish as they are about how the light being presented can be used most effectively as part of the esthetic quality and functionality of a space.\nWhile LED systems are suitable for providing uniform washes of light, they can also be used to create diffused glows just as easily as precise beams with less wasted light. This allows a designer to create wide ranges of effects from sharp contrasts between shadow and light to atmospheric looking spaces with little indication of where the light sources are.\nNo small detail\nThe focus on light quality is evidenced through the increased specification of low profile lighting. Many designers are finding ways to hide fixtures in wall, ceiling and floor coves, slots and other architectural features so that eyes are drawn to the ways in which the light interacts with the architecture and not the hardware itself. Furthermore, the effects of color rendering, correlated color temperature and lumen output on mood are now more easily designed and manipulated for maximum effect.\nIn fact, the Boston Globe published an article detailing tips for purchasing LED lighting, most of which were directed at light quality. Even at the consumer level, people are thinking about how 5000K lamps are better for task lighting and 2500K lamps and dim lighting are more suitable for relaxing familial environments.\nWhy are LEDs at the forefront?\nThe answer is simple: They're an all-in-one solution. They come in all ranges of color temperatures, offer near-perfect color rendering in some cases and some commercial LED lighting products even give users the ability to make real-time changes to the light quality. Industry experts believe LED technology is still at the Model-T stage in technological development.\nSubscribe and stay up to date\nreceive essential emails.","domain":"optical_engineering"}
{"url":"https://www.rusomart.com/af/blogs/news/description-of-ceramic-infrared-heater","date":"2022-01-24T07:03:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304515.74/warc/CC-MAIN-20220124054039-20220124084039-00097.warc.gz","language_score":0.9551517367362976,"token_count":278,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__30409699","lang":"en","text":"Ceramic infrared heaters are made up of resistive thermal conductors that are fully embedded in appropriate ceramic materials. Because it is fully embedded in ceramics, the energy generated by a thermal conductor can be passed on to the material around it, which not only prevents the thermal conductor from overheating, but also extends its service life. The material used to embed the thermal conductor must be insulated and have good absorbability and radioactivity within the set range of infrared radiation.\nTo meet this requirement, ceramic materials infrared heaters can be made into different geometries. Ceramic infrared heater is the main body of ceramics, using a part of the surface as a radiation surface and integrated heating coil.\nFor ceramic infrared heaters, a thermocouple can also be fixed to the adjacent position of the thermal conductor. Ceramic infrared heaters were invented by Elstein-werk. The basic model of conical ceramic Infrared heater was patented on March 24, 1949. At the same time, the ceramic infrared plate heater has been successfully developed, and a large area of infrared heating surface has been realized. On the March 8, 1950, Elstein-werk obtained a patent for ceramic infrared plate-shaped heaters. Ceramic infrared heaters are widely known as \"El Launchers\" and are now used as generic names for ceramic infrared heaters.","domain":"optical_engineering"}
{"url":"https://www.mkw-laser.de/en/veterinary-medicine/laser-shower-powertwin-21-plus-2/","date":"2020-01-27T22:09:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251728207.68/warc/CC-MAIN-20200127205148-20200127235148-00500.warc.gz","language_score":0.8846001029014587,"token_count":432,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__161209516","lang":"en","text":"ONE FOR ALL\nAll different kinds of fur types can be treated with the PowerTwin without any difficulty. With the comb adapter you can even treat animals with long and dense fur.\nA total of 21 powerful laser diodes irradiate an area of 55 cm² nearly homogeneously with maximum laser density. The wavelength is 808 nm for optimal penetration depth and stimulation.\nThree modes of laser application in one unit:\nbroad-area laser therapy – laser puncture – laser frequency therapy\nDifferent laser therapy application options are available thanks to various interchangeable adapters.\nAlso ideal for special applications\nThis laser model thus achieves one of the highest power densities of all low-level laser units on a treatment area that is still 55 cm² large.\nMoreover, the housing of the laser shower PowerTwin 21 has been redesigned: cooling the high-performance laser diodes with fans and cooling fins ensures efficient treatment.\nAs a result, therapy time can be significantly reduced, and the laser light can penetrate deeper into the tissue to be treated!\nWith a simple click, the laser shower can be converted into a laser comb within a few seconds – and without supply line losses. This way, even very hairy skin can be treated without any problems.\nFor special applications, the laser shower PowerTwin 21+ can be individually adjusted. Treatment dose, operating mode and therapy time are displayed on the color display. In addition to the CW (continuous wave) mode and the proven multifrequency spectrum, additional frequency programs (such as Nogier, Bahr, Solfeggio and Reininger frequencies) are pre-set. Other frequencies can be freely selected and programmed to 20 memory locations.\nNow also with FI bands (Frequency integrated). Automatic pre-set special frequencies. Ideally suited for laser field therapy or laser frequency therapy. Booklet (Pocket Guide) with indication examples is included.\n– PowerTwin 21+ total diode power 2,100 mW (21 x 100 mW)\n– PowerTwin 21 total diode power 1,050 mW (21 x 50 mW)","domain":"optical_engineering"}
{"url":"https://eventstarts.com/products/rental-casio-xj-a256-projector-3000-lumens-wxga-dlp-zoom-led-laser-3k","date":"2024-02-24T09:42:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474526.76/warc/CC-MAIN-20240224080616-20240224110616-00292.warc.gz","language_score":0.8149316906929016,"token_count":317,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__89717836","lang":"en","text":"You have no items in your shopping cart.\n- Front and rear projection\n- 2x Zoom\n- Can shoot well in a short distance\n- Does not overheat can operate 24 hours a day\n- Emidiate operation - no heat up delay\nHYBRID LIGHT ENGINE By combining a laser, a fluorescent element and an LED Casio has created an original mercury-free hybrid light source* capable of generating high brightness. Casio has achieved high brightness output of green light, which until now, has been considered difficult with conventional semiconductor light sources, by efficiently converting blue laser light into green light using a fluorescent element.\nThe Slim projector delivers a 50 percent increase in color spectrum for high impact presentations due to improvements in LED and laser technology. Superior color reproduction enhances color purity allowing visual effects to appear brighter and offering powerful images that conventional projectors cannot match.\nThe native WXGA (1280 X 800) resolution of the Slim projector allows for optimal viewing of content created and formatted for today’s widescreen displays. Whether it is viewing a spreadsheet or two applications side by side, the WXGA Slim projector provides more useable screen area and displays more information on the same screen. Widescreen display formats have become the standard and now your projector can match the widescreen display of Notebook PC’s and HD Video sources.\n2X OPTICAL ZOOM\nWhether you are in a small office or a large boardroom the 2X power zoom lens gives you the flexibility to easily position the projector.","domain":"optical_engineering"}
{"url":"https://iunx.l0l.in.net/how-do-you-refund-steam-games.html","date":"2020-02-20T05:28:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144637.88/warc/CC-MAIN-20200220035657-20200220065657-00084.warc.gz","language_score":0.9083659648895264,"token_count":1774,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__94955058","lang":"en","text":"The UV curing process uses UV energy and light from the visible light spectrum in wavelengths from 200 to 480 nm. UV energy \"cures\" inks and varnishes in a fraction of a second. A UV system consists essentially of the following components: UV lamps, reflectors, lamp housings, a cooling system and an electronic operating and control system. 1. UV Light and UV Curing Why Cure with UV? Electromagnetic Spectrum and the Wavelengths DYMAX Utilizes Advantages of Curing with UV AND Visible Light Wavelengths, Intensity, and Energy Shortwave, Longwave, and Visible Light Four Types of UV Curing Systems The UV Curing Process\nUV LED Curing Lamp is widely used in printing ink curing, glue curing, painting curing, resin curing and other fields. It contains lots of wavelength, such as 365nm, 385nm, 395nm, etc.. It can be fixed and removable, easy to operate. And we also can provide solutions for customers. However, UV curing inks are as much as three times the cost of regular heatset inks, and are used only in specialty printing, such as liquor cartons, cosmetic packaging, metal decoration, screen printing, and flexography. The most common configuration of UV curing equipment is a mercury vapor lamp. Usually UV-A is used to cure UV adhesives, UV inks, or UV coating. The most common UV-A wavelength for curing UV materials is LW370 (peaks at about 368 nm), however, for some adhesives LW350 (peaks at about 352 nm) will work just as well. The exact UV wavelength might need to be determined to see which UV lamp (bulb) should be used. UV Technology Ultraviolet reactive inks and coatings require a high intensity source of ultraviolet light to initiate a chemical reaction, curing the ink or the coating almost instantaneously. Ultraviolet light forms a small part of the electromagnetic spectrum which ranges from radio waves at the long-wave end, to x-rays and gamma rays at the ...\nMost plastic bonding UV adhesives have a longer wavelength photoinitiator which reacts with 400-420nm wavelength and will react in normal daylight fairly well. Glass bonding products have a photoinitiator which is activated when exposed to UV light of 365-400nm wavelength. In composite initiator system, for magenta UV curable jet ink, blue UV curable jet ink and yellow UV curable jet ink, the curing time of Irgacure369/ITX was less than other photoinitiators. For black UV curable jet ink, curing time of Irgacure184/ Irgacure819 was less than others. References  Li Lu-hai, Zhang Shu-fen, Yang Jin-zong, Zou Jing.\nThe types of UV lamps used for UV ink curing includes low pressure and medium pressure UV (MPUV) curing lamps as well as amalgam UV curing lamps. Using a wavelength of 254nm, UV low pressure lamps are used to cure inks in high-quality magazines and newspapers. For the longer-wavelength UV devices, in a similar manner to blue LED fabrication, InGaN-based epilayers are grown on sap-phire substrates to produce 385, 395 and 405 nm UV LEDs for curing. One key advan - tage to higher-wavelength devices is that they can be driven at higher power. “395 nm is really the sweet spot for UV LED curing, All coatings, whether paints, inks or adhesives, require a perfect,dry and cured surface. Depending on the process and the coating for curing, infrared heat, UV light or a combination of both technologies, like \"Hybrid Cure \", are efficient solutions. Find UV Marking Inks related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of UV Marking Inks information.\nSBM-120-UV Product Datasheet Wavelength Range (nm) Radiometric Flux Wavelength Bins Package Configuration Bin Kit Flux Ordering Part Number3 Code Min. Flux (W) 365-375 H 8.0 365, 370 F34 SBM-120-UV-F34-H365-22 I 9.1 365, 370 F34 SBM-120-UV-F34-I365-22 380-390 L 12.1 380, 385 F34 SBM-120-UV-F34-L385-22 M 13.3 380, 385 F34 SBM-120-UV-F34-M385-22 390-400 The FireEdge UV LED curing lamp is designed as a simple, low cost, small form factor air-cooled LED light source for pinning and curing of inks, coatings and adhesives. Download the Products Overview Brochure for more information Most plastic bonding UV adhesives have a longer wavelength photoinitiator which reacts with 400-420nm wavelength and will react in normal daylight fairly well. Glass bonding products have a photoinitiator which is activated when exposed to UV light of 365-400nm wavelength. Which applications get the best results with LED UV? Double production speed can be achieved with thick, heavily pigmented inks. The LEDs’ high intensity UV-A rays penetrate thick ink coats better for more consistent curing with improved adhesion, delivering faster speeds with silkscreen, laminating and flexo base white.\nInk used for Acuity LED 1600 is UV curable ink (UV ink), which is excellent in drying property and processed quickly. Inks used for wide-format printing are roughly divided into two types: Solvent ink containing a volatile solvent is dried by heating and UV ink containing a reactive monomer is polymerized and hardened by UV light. To polymerize ... The inks provide excellent inter-coat adhesion between paper – ink – melamine – resin, without any tendency to bleed thanks to UV curing. Cleaner and ink meet the IKEA standards listed in IOS-MAT-0010 and IOS-MAT-0066. The basic colors of the digital printer can be set (pinned) with a UV-LED (395 nm) and then fully cured by exposure to ... The Experts in UV light technology - UV curing lamps, UVC germicidal light bulbs, handheld UV cure systems, UV ovens, lab chambers, & UVC disinfection devices. The 2300 Series UV / UV‐LED Screen Ink is tailored to meet the needs of the container market for printing on various glass and plastic bottles used in the packaging of cosmetics, household The inks provide excellent inter-coat adhesion between paper – ink – melamine – resin, without any tendency to bleed thanks to UV curing. Cleaner and ink meet the IKEA standards listed in IOS-MAT-0010 and IOS-MAT-0066. The basic colors of the digital printer can be set (pinned) with a UV-LED (395 nm) and then fully cured by exposure to ...\nDarocur® 4265 Excellent for curing white inks and coatings. For additional information about individual products or specific applications, please contact your local Technical Representative. Ciba Photoinitiators for UV Curing UV LED Curing Because of the limited spectral wavelength, UV LED primarily operates in the UV-A zone and considered to be ‘safe’ because it is closest to visible light. However, prolonged exposure to this energy can be dangerous. The UV-B and much of the UV-C spectrums of light are primarily used for germicidal and sterilization purposes. All inks and coatings each have their own characteristic spectral absorbance, ranging from high absorbance of short UV wavelengths, to lower absorbance for longer wavelengths.(5) Spectral absorptivity is a key factor in determining the best wavelengths for most effective curing. A Simple Method to Determine Spectral Absorption The Phoseon FireFly is an air-cooled small form factor UV LED curing lamp with peak intensities up to 8W/cm². The FireFly product is ideal for small area and spot cure applications. It perfectly suits the UV curing of adhesives, inks, electronic materials and biomedical materials. The addition of gallium to the lamp yields a strong output in the longwave range between 400 and 450 nm. This makes the V lamp a good choice for curing white pigmented inks and base coats containing titanium dioxide which blocks the most shortwave UV. Fluorescent lamps. Fluorescent lamps are used for UV curing in a number of applications.","domain":"optical_engineering"}
{"url":"https://nyneighbor.com/visionary-illusions-the-wonders-of-holography/","date":"2024-02-24T23:07:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474569.64/warc/CC-MAIN-20240224212113-20240225002113-00812.warc.gz","language_score":0.883528470993042,"token_count":773,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__57108514","lang":"en","text":"Unveiling the Enigma: The Wonders of Holography Explored\nHolography, a captivating technology that creates three-dimensional images, has transcended its sci-fi origins to become a cornerstone of visual innovation. In this article, we embark on a journey into the realm of holography, delving into its principles, applications, and the mesmerizing experiences it brings.\nThe Essence of Holography: Beyond Two-Dimensional Imprints\nHolography goes beyond traditional photography by capturing not just the intensity of light but also its phase. This allows for the recreation of three-dimensional images that possess depth and parallax, creating a more immersive and realistic visual experience. The process involves splitting a laser beam, with one part illuminating the subject and the other serving as a reference beam.\nPrinciples at Play: How Holograms Materialize\nThe creation of a hologram involves recording the interference pattern between the light waves from the subject and the reference beam on a light-sensitive surface. This pattern, known as a holographic interference fringe, contains the information needed to reconstruct the three-dimensional image when illuminated with the same or a suitable light source.\nApplications in Art and Entertainment: Holography Takes the Stage\nHolography has found a place in the realms of art and entertainment, offering new dimensions of creativity. From holographic art installations that defy conventional boundaries to holographic performances that bring virtual artists to life on stage, the technology has enriched the visual and performing arts, pushing the boundaries of imagination.\nHolography in Scientific Visualization: A Window into the Unseen\nIn the scientific realm, holography serves as a powerful tool for visualizing complex structures and phenomena. In fields such as microscopy and medical imaging, holographic techniques provide detailed insights into intricate biological structures. The ability to capture three-dimensional data enhances our understanding of the microscopic world.\nHolography in Data Storage: Beyond Traditional Methods\nHolographic data storage represents a futuristic approach to information storage. Unlike traditional methods that store data in two dimensions, holographic storage utilizes three-dimensional storage space. This enables higher data densities and faster access times, making it a potential candidate for the next generation of data storage solutions.\nSecurity Features and Authentication: Holograms as Protectors\nHolograms play a crucial role in security features and authentication. From holographic seals on official documents to holographic images on credit cards, they add a layer of complexity that is challenging to replicate. This use of holography helps deter counterfeiting and ensures the integrity of valuable items and documents.\nThe Holographic Future of Displays: From Sci-Fi to Reality\nAdvancements in holographic displays hold the promise of transforming how we interact with visual information. From holographic screens that bring images to life in three dimensions to augmented reality experiences that seamlessly blend virtual and real-world elements, holography is shaping the future of visual communication.\nChallenges and Future Innovations: Navigating the Holographic Landscape\nDespite its wonders, holography faces challenges such as the requirement for precise conditions and equipment to create high-quality holograms. Researchers are actively exploring innovations to overcome these challenges, including the development of holographic displays for everyday use and the integration of holography into virtual and augmented reality systems.\nExploring the Holographic Frontier\nIn conclusion, the world of holography unfolds as a mesmerizing frontier of visual exploration. Its applications span art, science, security, and technology, offering a glimpse into a future where holographic experiences are seamlessly woven into our daily lives. To explore more about the wonders of Holography, visit our comprehensive guide for a deeper dive into this captivating technology.","domain":"optical_engineering"}
{"url":"https://www.drarthurfranz.com/hoya-lenses.html","date":"2020-01-22T14:26:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250607118.51/warc/CC-MAIN-20200122131612-20200122160612-00449.warc.gz","language_score":0.9331706762313843,"token_count":170,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__73898309","lang":"en","text":"With the introduction of progressive lenses, several decades ago, a true revolution occurred. Being able to see at all distances was no longer just a theoretical possibility.\nHowever, the problem with traditional progressive lenses is that you have to get used to it. Many progressive wearers need some time to adjust themselves to the way they perceive the images.\nThanks to the Balanced View Control principle Hoyalux iD lets you experience an unsurpassed stable image perception.\nHoya is the first manufacturer to succeed in developing a progressive lens with a completely new and revolutionary structure. It neutralizes the disadvantages and provides maximum benefits.\nHoyalux iD is the ideal lens for you if you:\n- Want to feel secure while moving\n- Prefer a maximum wide distortion free view\n- Require visual comfort at all distances and in many circumstances","domain":"optical_engineering"}
{"url":"https://www.barnetteacademy.com/group/barnette-academy-group/discussion/279fb7df-de33-4422-ba36-0596dfd75827","date":"2024-04-22T18:52:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00459.warc.gz","language_score":0.9118943810462952,"token_count":1975,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__23580002","lang":"en","text":"Efforts continue regarding the analysis of particulate contamination recorded by the Camera/Photometers on STS-2. These systems were constructed by Epsilon Laboratories, Inc. and consisted of two 16-mm photographic cameras, using Kodak Double X film, Type 7222, to make stereoscopic observations of contaminant particles and background. Each was housed within a pressurized canister and operated automatically throughout the mission, making simultaneous exposures on a continuous basis every 150 sec. The cameras were equipped with 18-mm f/0.9 lenses and subtended overlapping 20 fields-of-view. An integrating photometer was used to inhibit the exposure sequences during periods of excessive illumination and to terminate the exposures at preset light levels. During the exposures, a camera shutter operated in a chopping mode in order to isolate the movement of particles for velocity determinations. Calculations based on the preflight film calibration indicate that particles as small as 25 μm can be detected from ideal observing conditions. Current emphasis is placed on the digitization of the photographic data frames and the determination of particle distances, sizes, and velocities. It has been concluded that background bright-ness measurements cannot be established with any reliability on the STS-2 mission, due to the preponderance of Earth-directed attitudes and the incidence of light reflected from nearby surfaces.\nThe Solar EUV Experiment (SEE) on the NASA Thermosphere, Ionosphere, and Mesosphere Energetics and Dynamics (TIMED) mission will measure the solar vacuum ultraviolet (VUV) spectral irradiance from 0.1 to 200 nm. To cover this wide spectral range two different types of instruments are used: a grating spectrograph for spectra between 25 and 200 nm with a spectral resolution of 0.4 nm and a set of silicon soft x-ray (XUV) photodiodes with thin film filters as broadband photometers between 0.1 and 35 nm with individual bandpasses of about 5 nm. The grating spectrograph is called the EUV Grating Spectrograph (EGS), and it consists of a normal- incidence, concave diffraction grating used in a Rowland spectrograph configuration with a 64 X 1024 array CODACON detector. The primary calibrations for the EGS are done using the National Institute for Standards and Technology (NIST) Synchrotron Ultraviolet Radiation Facility (SURF-III) in Gaithersburg, Maryland. In addition, detector sensitivity and image quality, the grating scattered light, the grating higher order contributions, and the sun sensor field of view are characterized in the LASP calibration laboratory. The XUV photodiodes are called the XUV Photometer System (XPS), and the XPS includes 12 photodiodes with thin film filters deposited directly on the silicon photodiodes' top surface. The sensitivities of the XUV photodiodes are calibrated at both the NIST SURF-III and the Physikalisch-Technische Bundesanstalt (PTB) electron storage ring called BESSY. The other XPS calibrations, namely the electronics linearity and field of view maps, are performed in the LASP calibration laboratory. The XPS and solar sensor pre-flight calibration results are primarily discussed as the EGS calibrations at SURF-III have not yet been performed.\nFive Microtops II sun photometers were studied in detail at the NASA Goddard Space Flight Center (GSFC) to determine their performance in measuring aerosol optical thickness (AOT or Tau(sub alphalambda) and precipitable column water vapor (W). Each derives Tau(sub alphalambda) from measured signals at four wavelengths lambda (340, 440, 675, and 870 nm), and W from the 936 nm signal measurements. Accuracy of Tau(sub alphalambda) and W determination depends on the reliability of the relevant channel calibration coefficient (V(sub 0)). Relative calibration by transfer of parameters from a more accurate sun photometer (such as the Mauna-Loa-calibrated AERONET master sun photometer at GSFC) is more reliable than Langley calibration performed at GSFC. It was found that the factory-determined value of the instrument constant for the 936 nm filter (k= 0.7847) used in the Microtops' internal algorithm is unrealistic, causing large errors in V(sub 0(936)), Tau(sub alpha936), and W. Thus, when applied for transfer calibration at GSFC, whereas the random variation of V(aub 0) at 340 to 870 nm is quite small, with coefficients of variation (CV) in the range of 0 to 2.4%, at 936 nm the CV goes up to 19%. Also, the systematic temporal variation of V(sub 0) at 340 to 870 nm is very slow, while at 936 nm it is large and exhibits a very high dependence on W. The algorithm also computes Tau(sub alpha936) as 0.91Tau(sub alpha870), which is highly simplistic. Therefore, it is recommended to determine Tau(sub alpha936) by logarithmic extrapolation from Tau(sub alpha675) and Tau(sub alpha 870. From the operational standpoint of the Microtops, apart from errors that may result from unperceived cloud contamination, the main sources of error include inaccurate pointing to the Sun, neglecting to clean the front quartz window, and neglecting to calibrate correctly. If these three issues are adequately taken care of, the Microtops can be quite accurate and stable, with root mean square (rms\nThis paper presents the development and set up of a cloud screening and data quality control algorithm for a star photometer based on CCD camera as detector. These algorithms are necessary for passive remote sensing techniques to retrieve the columnar aerosol optical depth, delta Ae(lambda), and precipitable water vapor content, W, at nighttime. This cloud screening procedure consists of calculating moving averages of delta Ae() and W under different time-windows combined with a procedure for detecting outliers. Additionally, to avoid undesirable Ae(lambda) and W fluctuations caused by the atmospheric turbulence, the data are averaged on 30 min. The algorithm is applied to the star photometer deployed in the city of Granada (37.16 N, 3.60 W, 680 ma.s.l.; South-East of Spain) for the measurements acquired between March 2007 and September 2009. The algorithm is evaluated with correlative measurements registered by a lidar system and also with all-sky images obtained at the sunset and sunrise of the previous and following days. Promising results are obtained detecting cloud-affected data. Additionally, the cloud screening algorithm has been evaluated under different aerosol conditions including Saharan dust intrusion, biomass burning and pollution events.\nOver a period of 3 year a precision Sun photometer (SPM) operating between 300 and 1025 nm was calibrated four times at three different high-mountain sites in Switzerland, Germany, and the United States by means of the Langley-plot technique. We found that for atmospheric window wavelengths the total error (2 sigma-statistical plus systematic errors) of the calibration constants V(sub 0)(lambda), the SPM voltage in the absence of any attenuating atmosphere, can be kept below 1.60% in the UV-A and blue, 0.9% in the mid-visible, and 0.6% in the near-infra red spectral region. For SPM channels within strong water-vapor or ozone absorption bands a modified Langley-plot technique was used to determine V(sub 0)(lambda) with a lower accuracy. Within the same period of time, we calibrated the SPM five times using irradiance standard lamps in the optical labs of the Physikalisch-Meteorologisches Observatorium Davos and World Radiation Center, Switzerland, and of the Remote Sensing Group of the Optical Sciences Center, University of Arizona, Tucson, Arizona. The lab calibration method requires knowledge of the extraterrestrial spectral irradiance. When we refer the standard lamp results to the World Radiation Center extraterrestrial solar irradiance spectrum, they agree with the Langley results within 2% at 6 or 13 SPM wavelengths. The largest disagreement (4.4%) is found for the channel centered at 610 nm. The results of these intercomparisons change significantly when the lamp results are referred to two different extraterrestrial solar irradiance spectra that have become recently available.\nThe Whipple mission was a proposal submitted to the NASA Discovery AO in 2010 to study the solid bodies of the Kuiper Belt and Oort Cloud via a blind occultation survey. Though not accepted for flight, the proposal was awarded funding for technology development. Detecting a significant number of Trans Neptunian Objects (TNOs) via a blind occultation survey requires a low noise, wide field of view, multi object differential photometer. The light curve decrement is typically a few percent over timescales of tenths of seconds or seconds for Kuiper Belt and Oort cloud objects, respectively. To obtain a statistically interesting number of detections, this photometer needs to observe many thousands of stars over several years since the rate of occultation for a single star given the space density of the TNOs is low. The light curves from these stars must be monitored with a sensor with a temporal resolution of rv 25-50 ms and with a read noise of\nWelcome to the group! You can connect with other members, ge...","domain":"optical_engineering"}
{"url":"https://www.ammareyecenter.com/pentacam","date":"2023-09-22T13:59:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506420.84/warc/CC-MAIN-20230922134342-20230922164342-00622.warc.gz","language_score":0.9088218212127686,"token_count":236,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__116178790","lang":"en","text":"It is a device that examines the frontal parts of the eye, as it takes a 360-degree image and then shoots 50 different pictures of more than 25,000 points in the cornea in a period not exceeding two seconds only!\nThe device also gives a three-dimensional image of the cornea and a three-dimensional image of the anterior chamber of the eye, determines the front and back terrain of the cornea and its thickness and also shows white water \"cataract\" if it is present with the lens of the eye. The Pentacam imaging system also allows for a panoramic tour of the anterior chamber of the eye without surgery or direct contact with the cornea using an advanced camera system that scans (cornea, anterior chamber, iris, and lens). This technique displays images that the patient can instantly understand and much information about the condition of the eye allowing to display all the above structures in high magnification with many details. The Pentacam imaging system is an important tool in vision correction surgery that helps us rule out any kind of corneal problems that would be contraindications to laser vision correction.","domain":"optical_engineering"}
{"url":"https://eshop.avalonnetworks.com/shop/anpc-om3-lc-lc-dp-1mt-lc-lc-multi-mode-om3-duplex-patch-cord-1-mtr-lszh-8174","date":"2024-04-19T19:08:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817442.65/warc/CC-MAIN-20240419172411-20240419202411-00790.warc.gz","language_score":0.8785253167152405,"token_count":270,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__68034527","lang":"en","text":"• Multi-Mode OM3 Duplex Patch Cord with LSZH Jacket: This patch cord is designed for multi-mode fiber optic networks and features a Low Smoke Zero Halogen (LSZH) jacket.\n• OM3 Fiber Optic Compatibility: The patch cord is specifically designed to work with OM3 multi-mode fiber optic cables, ensuring optimal performance and compatibility.\n• LSZH Jacket: The LSZH jacket provides enhanced safety in case of fire by producing low smoke and zero halogen emissions, making it suitable for use in sensitive environments such as data centers, hospitals, and transportation facilities.\n• Duplex Design: The patch cord features a duplex design, allowing for the simultaneous transmission of data in both directions.\n• Reliable Data Transmission: With its multi-mode design, the patch cord enables the transmission of data over short to medium distances with high reliability and low signal loss.\n• Durable Construction: The patch cord is built with high-quality materials to ensure durability and long-lasting performance, making it suitable for use in various environments.\n• Easy Installation: The patch cord is plug-and-play, making it easy to install and connect to compatible fiber optic devices or patch panels without the need for special tools or expertise.\nClick on the PDF icon below to download datasheet:","domain":"optical_engineering"}
{"url":"https://www.moxa.cz/en/video-processing/","date":"2024-02-26T08:43:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00392.warc.gz","language_score":0.9295689463615417,"token_count":472,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__91824062","lang":"en","text":"Supplementing remote monitoring systems with visual surveillance is the latest trend in automation systems. As in security and surveillance systems, the advantage of the complexity of the visual information obtained by cameras is being exploited. Such information is often more natural to the user than the status and evolution of technological signals. The user is then able to react more quickly and correctly to events that occur, or to analyse the causes of events on the basis of video footage.\nDo you have any questions or would you like to cooperate with us?\nWrite to us and we will get back to you.\nModern video surveillance systems use IP data networks for video transmission. The advantage is the use of a unified infrastructure, higher digital image quality, easier management and advanced features. When switching from older analog CCTV systems to IP video surveillance, it is not necessary to replace all already installed and compliant analog cameras. Video servers or video encoders are used to digitize, compress and transmit video over the IP network. In addition to video digitization, they can offer other advanced features such as detecting changes in the image, intrusion of defined zones, sending emails with images during events, etc. If the digitised image transmitted over the network needs to be converted back to analogue video, video decoders are used for this purpose. An important part of video encoders is software for their integration into application software, SCADA systems or stand-alone software for video surveillance and recording and management of video files.\nWhen installing new applications involving video monitoring, so-called IP cameras are used that already have an integrated video server and can therefore connect directly to the IP network. In our product range you will find a wide range of industrial cameras of different designs depending on the application. In applications with a large number of installed cameras or automated image management, the intelligent image analysis functions directly in the cameras are an advantage. We offer cameras with a large operating temperature range from -40°C to 70°C without additional heating or active cooling. Importantly, the cameras are certified for use in harsh environments, such as rolling stock or explosive environments. Because the cameras are designed from the outset for operation in harsh environments, they are backed by an extended warranty guaranteeing long-term system operation with little additional maintenance costs. We offer a complete range of accessories for the cameras, from lenses to mounting accessories.","domain":"optical_engineering"}
{"url":"https://ystrclothing.com/color-and-clarity-finding-the-perfect-contacts-for-astigmatic-eyes/","date":"2024-04-24T21:08:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819971.86/warc/CC-MAIN-20240424205851-20240424235851-00719.warc.gz","language_score":0.9184197187423706,"token_count":798,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__184564297","lang":"en","text":"Color and Clarity: Finding the Perfect Contacts for Astigmatic Eyes\nNavigating the world of contact lenses can be a little blurry, especially for those with astigmatism. Unlike regular lenses, toric contact lenses are designed to accommodate the irregular shape of the eye that often results in blurry vision and discomfort. However, having astigmatism shouldn’t mean sacrificing style for comfort. In this post, we’ll highlight the latest innovations that merge vision correction with the freedom of choice in colored contacts for astigmatism (乱視用カラコン), ensuring your astigmatic eyes can see clearly and look great!\nUnderstanding Astigmatism and the Role of Contact Lenses\nAstigmatism is a common refractive error caused by an irregularly shaped cornea or lens in the eye. This can lead to blurred or distorted vision at all distances. Regular contact lenses may not be effective in correcting this issue, which is where toric lenses come into play. They are specially designed to have different powers in different meridians of the lens to counter the effects of astigmatism, providing a clear vision that matches the natural curvature of the eye.\nA Spectrum of Clarity and Color\nGone are the days when those with astigmatism had to settle for clear and dull lenses. Today, you can find toric lenses that not only correct your vision but also allow you to express yourself through a variety of tints and colors. From subtle enhancements to bold changes, these lenses offer a spectrum of options to personalize your look. Here’s how to find the perfect balance between color and clarity:\nAssess Your Visual Needs and Style\nThe first step in choosing the right coloredtoric contacts is to determine your visual requirements. Do you need lenses for occasional wear or everyday use? Be sure to consult with your eye care professional to select the best option for your prescription and lifestyle. Once you understand your vision correction needs, consider your personal style. Are you drawn to natural hues or do you prefer eye-catching colors that make a statement? Your choice of tint can enhance the natural color of your eyes or completely transform your look.\nExplore Brands and Technologies\nSeveral leading companies have made significant advancements in toric contact lenses. They now offer features such as high oxygen permeability, moisture retention, and UV protection, in addition to vision correction. Explore brands like Acuvue, Biofinity, and Air Optix, which all offer toric lenses in different shades.\nTry Before You Buy\nMaking the switch to coloredtoric lenses is an exciting venture, but it’s important to find the shade that not only fits your visual needs but also your personal comfort. Many companies provide trial pairs, allowing you to wear the lenses for a day to see how well they correct your astigmatism and how comfortable they are throughout the day.\nCare for Your Lenses\nOnce you’ve found the perfect balance between color and clarity, it’s crucial to maintain your lenses properly. Follow your optometrist’s instructions for cleaning and storing them to ensure optimal vision correction and to keep your eyes healthy and comfortable.\nThe Bottom Line on ColoredToric Lenses\nColoredtoric contact lenses are an innovative solution for those with astigmatism who want to enjoy the benefits of vision correction without losing out on the spectrum of self-expression. The key to finding the right pair is to combine your visual requirements with your personal style. With the right approach, you can have lenses that not only provide clear vision but also add an extra dimension to your overall look. Remember to prioritize your eye health by consulting with your eye care professional and following proper lens care practices. Whether you’re looking to subtly enhance or dramatically change the color of your eyes, there’s a toric lens out there for you that delivers on both form and function.","domain":"optical_engineering"}
{"url":"http://www.losquechat2.ml/ryja/nikon-at-best-buy-118.php","date":"2019-08-21T14:33:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027316021.66/warc/CC-MAIN-20190821131745-20190821153745-00128.warc.gz","language_score":0.775398850440979,"token_count":442,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__57211220","lang":"en","text":"Brown, white, wholemeal, thick slice, thin slice, gluten free, ideal for toasting, reduced salt, low sugar and that is just for one of the seemingly hundreds of brands.\nWhere to Buy Cheapest Nikon Df Deals Online ? – CameraAll current Nikon speedlights, including the SB-900 will work with all modern Nikon cameras (and most older Nikon cameras).Shop for the latest Nikon digital cameras, including Nikon Coolpix, Nikon point-and-shoot models, and more at Best Buy.\nBest prime DX lenses on the Nikon D500 - DxOMark\nWhere to Buy Cheapest Nikon D7200 Deals Online ? – Camera\nSo today, we are going to showing you where to buy Nikon D7200 online for the lowest price, you can get best Nikon D7200 deals here.\nHome | Nikon Lenswear Canada\nBest Lenses for Nikon D7500 « NEW CAMERA\nNikon 200-500mm VR Review - Ken RockwellShop for state-of-the-art Nikon digital SLR cameras at Best Buy.Its Art series lenses are renowned for their image quality, sharpness, and very little distortion.\nWhether you are looking for a high-end, mid-range or entry-level camera, you will find the best options here.Best binoculars review. Both the Avalon and the Nikon binoculars above are ideal for use either with or without eye-glasses.\nThe best place to buy a Nikon D3400 | iMoreThis buying advisory is based on rumors of upcoming products and nothing else.If you continue on our site, you consent to the use of such cookies.\nBest lenses for Nikon D5600 « NEW CAMERADiscuss how technology integrates into your life at Best Buy Support.\nnikon d3200 | eBay\nNikon Lens Warranty - Best Buy SupportBelow is our list of the best lenses for the Nikon D3200, ranging from kit lenses (keep in mind that the camera comes with the 18-55mm VR.\nAs a pioneer in lens technology, Nikon strives to design lenses that offer the best possible vision to every person.","domain":"optical_engineering"}
{"url":"http://unliteral.blogspot.com/2010/06/digitising-bibles.html","date":"2017-04-30T16:32:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917125719.13/warc/CC-MAIN-20170423031205-00524-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9327893257141113,"token_count":453,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__124541681","lang":"en","text":"Eumaeus - The Noble Swineherd: \"The two books are a Wycliff Bible, an early English translation dating from approximately AD 1410, and the famous St. Chad’s Gospel,\"\n\"For the work, we will use an old-fashioned bellows camera with a medum-format digital back. The digital sensor is monochromatic, and 38 megapixels. The resolution is a good thing, and the lack of color is also a good thing. In a normal, color, digital camera of, say, 24 megapixels, there is a color filter laid over the sensor. Of the 24 million pixels, 8 will be filtered through red, 8 will be filtered through green, and 8 will be filtered through blue. So each full color \"pixel\" will consume three pixels of resolution. The software in the camera will merge the three pixels into one, full-color pixel, at the cost of some softness to the image.\nOur black-and-white camera has no color filter in front of the sensor. This does not mean that we won’t have lovely color images of these Bibles, however.\nThe lights for this photography consist of banks of LED lights, with each bank bank of LEDs emitting a specific frequency of light. There are thirteen banks, ranging from ultraviolet, through the visible spectrum (blues, greens, oranges, reds) down to several levels of infrared. The camera and lights are controlled by a computer, which will automatically cycle through the spectra of light, taking a picture for each one.\nThe result is thirteen monochromatic images, each showing particular features of the page, as different kinds of ink and different kinds of stains or damage reflect differently.\nAt the end, the thirteen images can be merged to create full-color images that take advantage of the full resolution of the sensor. Other “false color” images can be generated to suit particular kinds of analysis.\nIn addition to this digital photography, the team is capturing structured light data, which involves projecting a series of patterns on the page, and photographing each one. From this data, we can generate a 3-dimensional model of the page.\"","domain":"optical_engineering"}
{"url":"https://broadbandworldnews.com/author.asp?section_id=477&doc_id=730189","date":"2023-12-05T18:09:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100555.27/warc/CC-MAIN-20231205172745-20231205202745-00877.warc.gz","language_score":0.9325701594352722,"token_count":442,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__231373095","lang":"en","text":"Don't underestimate the cable industry's role in next-generation network development.\nCableLabs has started a new R&D project aimed at radically expanding bandwidth capacity in the access network. The kicker? The technology applies not just to cable infrastructure, but to any type of access architecture.\nCalled coherent optics, the new work coming out of CableLabs adapts techniques used in long-haul optical networks to the much shorter links deployed closer to broadband subscribers. For a cable operator, this means the fiber network segment between a cable headend and a cable node. However, the same technology could be implemented in a telecom access environment just as easily.\nCoherent optics works by using multiple dimensions within an optical carrier to transmit information. What that boils down to is an ability to create more capacity in each wavelength, which can then be combined with other wavelengths in a fiber strand to deliver significantly greater bandwidth to an optical endpoint. (See New CableLabs Optical Tech Promises Big Bandwidth Boost.)\nHow much more bandwidth?\n\"In the lab we have reached 2 terabits per second -- 2,048 gigabits per second over eight wavelengths, [or] eight optical carriers,\" says CableLabs Distinguished Technologist Alberto Campos. \"But these optical carriers are closely spaced. We don't occupy too much of the spectrum resources that you have in fiber, so potentially you could occupy significantly more of the fiber spectrum, and have significantly more capacity. Or you [could] also improve the efficiency on a per-optical-carrier basis and increase capacity like that. So there is a lot of room for improvement. This is just the beginning.\"\nJust the beginning is right. CableLabs hasn't even formed a working group to advance the coherent optics project yet, but it expects to do so in late spring or early summer. The group will likely consist of traditional cable vendors, but also newer entities to the CableLabs family including optical transceiver companies. Following the group's efforts, CableLabs will eventually publish technical specifications to be shared with the industry as a whole.\n— Mari Silbey, Senior Editor, Cable/Video, Light Reading","domain":"optical_engineering"}
{"url":"https://mapleleafphoto.ca/canon_powershot_g9_x_mark_ii_digital_camera_black_5282388.php","date":"2020-08-14T17:27:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439739347.81/warc/CC-MAIN-20200814160701-20200814190701-00194.warc.gz","language_score":0.8867594003677368,"token_count":518,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__92683877","lang":"en","text":"CDN$ 514.99 (26% Discount)\nA sleek, pocketable, and quite capable camera, the black PowerShot G9 X Mark II from Canon mixes a compact form factor with advanced imaging capabilities. Pairing a 20.1MP 1\" CMOS sensor with a DIGIC 7 image processor, this combination produces clean, high-resolution image quality well-suited to working in difficult lighting conditions, with extended sensitivity to ISO 12800, and also avails quick shooting performance up to 8.2 fps for working with moving subjects. Full HD 1080p video recording is also supported, as well as in-camera time-lapse movies for producing dynamic moving image content. Complementing the imaging capabilities is a versatile 3x optical zoom lens, which covers a wide-angle to portrait-length 28-84mm equivalent focal length range, and Dynamic IS benefits this reach by minimizing the appearance of camera shake. The slim camera body also features a 3.0\" touchscreen LCD for intuitive control as well as built-in Wi-Fi with NFC and Bluetooth for wirelessly transferring imagery and remotely controlling the camera from a mobile device.\n20.1MP 1\" High-Sensitivity CMOS Sensor\nDIGIC 7 Image Processor\n3x Optical Zoom f/2-4.9 Lens\n28-84mm (35mm Equivalent)\n3.0\" 1.04m-Dot Touchscreen LCD Monitor\nFull HD 1080p Video Recording at 60 fps\nBuilt-In Wi-Fi with NFC and Bluetooth\nExtended ISO 12800 and 8.2 fps Shooting\nDynamic IS and Time-Lapse Video Function\nIn-Camera Raw Conversion, Picture Style\"\nWhy should I buy from MapleLeafPhoto.ca?\nIn Canada, we believe that we are able to bring you the best combination of best price and best value! We have established direct relationships with the manufacturers so that we can bring you the very best price!\nWhat is MapleLeafPhoto.ca's Shipping Policy?\nAt MapleLeafPhoto.ca, almost all of our cameras, drones and accessories ship free. If you want, for a little extra any item can be expedited so you can start using it right away. Not in Canada? Not a problem, we can also ship to you!\nIs your site secure?\nYes! We use the latest SSL technology to encode names, passwords, credit card numbers, and all other customer information, making it practically impossible for anyone to ever see your information.","domain":"optical_engineering"}
{"url":"http://atklaser.co.uk/2017/10/06/laser-beam-alignment/","date":"2019-07-21T03:11:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195526818.17/warc/CC-MAIN-20190721020230-20190721042230-00277.warc.gz","language_score":0.9010219573974609,"token_count":1344,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__141141783","lang":"en","text":"Laser beam alignment can be a daunting task, but it shouldn't have to be. First time users find it overwhelming and often give up and accept unsatisfactory alignment. Alignment shouldn't be a task that you avoid, it gets easier with repetition. Bad alignment can cause a number of problems; reduced cutting power, overheating lens / mirrors, in extreme cases even areas of the machine where the beam will not exit the air assist nozzle.\n- Never fire a co2 laser with the protective doors open\n- Never circumvent safety circuits to allow machine to operate with door open.\n- Never place tape directly on mirrors, the adhesive can damage the coating.\n- Always ensure water cooling and ventilation is active when firing the laser.\nCO2 Laser Engraver optical system terminology\n- Thumb Screws\n- 1st Mirror\n- 2nd Mirror\n- Laser Head\n- 3rd Mirror\n- Focal Tube\n- Focal Lens\n- Air Assist Nozzle\nWhen testing alignment the best medium i have found is regular painters tape (masking tape). Fold a piece of tape a few times to make padded square, place this square over the target mirror. Use a fresh piece of tape to secure the target tape pad. Use a pen and ruler to find the mirror center and mark.\nUse a low power setting when setting alignment, i tend to use around 15% power this usually requires a 1-2 second pulse to mark the tape.\nDo not let the adhesive directly touch the mirror as this can damage the coatings.\nEven better still is to make a couple of 20mm acrylic circles with a target engraved into them. These targets should pop into the mounting if they are cut to the correct size and tolerance.\nAdjusting the mirrors\nOn the rear of each mirror is three thumbscrews, these screws when turned clockwise will push the mirror mounting out adjusting the angle of the mirror. The below images show the effect of adjusting each screw and the expected result at the target. The screws can be turned counter clockwise to adjust the alignment in the opposite direction.\nFar and Near field alignment\nFar field alignment should always be done prior to near field. Adjust the angle of the mirror to get the beam spot to hit the centre of the next mirror when the mirrors are at their furthest distance apart. When you move the mirrors closer together does this spot move up or down? If so you’re near field alignment is out. Near field alignment is achieved by changing where the spot hits the mirror you are trying to adjust. This is achieved by adjusting the alignment of the previous optic.\nThe diagram below shows an example of a mirror arrangement that has been adjusted to get the spot to hit center when the mirrors are closest (near field). You can see at far field the beam exits this mirror at an angle hitting high on the 2nd mirror. This is due to the spot hitting low on the first mirror. If the beam is not hitting the 1st mirror at the correct position, 100% alignment across the entire machine will never be achieved.\nIf both near field and far field alignment cannot be achieved with the beam spot hitting center you must adjust the tube position.\nMy method of alignment is very different to any I have ever seen. I find it to be the quickest and easiest to logically complete. It consists of aligning all the mirrors to ensure the beam hits the same position both near and far regardless off its relation to the center. This method will align your optics 100% parallel to your gantry. You can then move the position of the spot in relation to center by adjusting the position of the tube.\nThe above image shows the 1st mirror aligned so the beam always hits the same spot on the second mirror both near and far field. This ensures the beam is running parallel too the gantry. But the beam spot is hitting about 3mm below the center, whats the solution?\nThe tube must be raised 3mm raising the entire beam path, the beam will now follow the blue line on the above image.\nHorizontal beam alignment\nOnce the 1st and 2nd mirror have been adjusted so the spot hits the same position on the final mirror both near and far. Adjustments can be made to the position of the tube to raise or lower this spot. Raising the spot position at the first mirror should make an equal movement on the final mirror. If your spot is hitting to the left or right on the final mirror you must adjust the 1st mirror mounting, at the base of the mounting slacken off the 2 3mm hex head bolts. Now slide the mounting in the desired direction, make very slight adjustments. After adjusting the position of this mirror mounting you will probably have to make slight adjustments to the alignment of the first mirror.\nNow your horizontal beam alignment is complete. It is now time to focus on the vertical beam alignment.\nVertical beam alignment\nIncorrect vertical alignment will cause your machine to cut at an angle. This causes the machine to require more power to cut the same material. Not to mention the visual implications.\nThe following steps are my method to achieving vertical alignment.\n- First ensure the focal height of the laser head is correct.\n- Pulse fire the laser onto a suitable piece of wood.\n- Lower the Z axis 100mm to cause the laser to become out of focus. (Do not move the wood test piece)\n- Pulse the laser again, it may require you to pulse for longer due to the lens being out of focus.\n- You should now have a large spot centered around the smaller spot.\n- Adjust the thumb screws to center the larger spot around the small spot.\n- If at any point you begin to hit the air assist nozzle and loose the laser beam, turn the adjustment back anticlockwise.\n- You can remove the air assist nozzle if the above step doesn't work to help you achieve vertical alignment.\nFor other Guides, Tutorials and helpful information please like our page to be kept up to date.\n[sfp-page-plugin width=720 show_posts=true url=https://www.facebook.com/atklaser]\n- 30W Raycus Q-Switched pulsed fiber source RFL-P30Q £2,299.99\n- Teyu S&A CW-5200 Refrigerated Chiller £549.99\n- 150W Laser Power Supply PSU £159.99\n- Laser Powergauge V1 £149.99\n- 100W Laser Power Supply PSU £149.99","domain":"optical_engineering"}
{"url":"https://ottawa-agent.ca/sec7rks/nikon-z50-lens-adapter-df5606","date":"2021-06-22T05:28:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488507640.82/warc/CC-MAIN-20210622033023-20210622063023-00414.warc.gz","language_score":0.8699175119400024,"token_count":2639,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__3637635","lang":"en","text":"Les meilleures offres pour Hasselblad V mount Lens pour Nikon Z-Mount compacts Caméra Adaptateur Z50 Z6 Z7 sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite! Infinity remains unchanged, so the lens does not need to be re-collimated or shimmed. I fitted this F mount lens to the Z50 via the FTZ adaptor. Nikon Z50 Digital Camera with 16-50mm Lens and FTZ Adapter. The Megadap MTZ11 adapter is … Nikon Z 14-30mm f/4 S 4.7 out of 5 stars 148. Nikon Z 14-30mm f/4 S 4.7 out of 5 stars 148. Errors and omissions excepted. Next. The adapter, says the company, is suitable for Nikon Z50, Nikon Z5, Nikon Z6, Nikon Z6 ii, Nikon Z7, Nikon Z7 ii cameras. Cameras – LCD screen may have scratches or wear that is starting to affect the display. I'd also get it at Adorama, at Amazon or at Crutchfield. Your F-Mount Nikkor lenses will feel as if they were made for your Z series camera. Nikon Z 50 Creator's Kit with NIKKOR Z DX 16-50mm f / 3.5-6.3 VR lens, Microphone, Tripod and Mount (NIKON-30100) Model #: NIKON-30100 | Manufacturer#: 30100 | UPC #: 018208301003 Write a Review. DX mirrorless body with pop-up flash: A portable easy to carry body, with strong magnesium-alloy top and front. This way, the mounted manual lens can benefit from autofocus as well. Nikon Z50 + FTZ adapter + TC 1.4x III + 300mm f4 PF. Pergear 12mm f/2 lens specifications: Lens construction: 12 elements in 9 groups; 2 aspherical and 2 low wave high refractive elements Highly recommended if you want a handy zoom lens for your DX-format camera. Edge to edge sharpness: Utilising a Hybrid-AF system with 209 on-sensor AF points covering approximately 90% of the frame both horizontally and vertically. N/A, Timelapse recording: Free shipping . Nikon 40mm F2.8 AF-S DX – The best macro lens for Nikon Z50 is 40mm of 2.8 macro. Footage was taken with a Nikon Z50 +Tamron 18-400mm lens + FTZ adapter. 1. If you want an all-rounder lens then you should wait a while since Nikon 18-140mm lens for DX Mirrorless is coming in 2021. Nikon 50mm F1.8 The best portrait lens for Nikon Z50 is still Nikon 50mm F1.8 Lens. Apart from Leica M, other adapters can be stacked on top to provide a different lens mount. The Z 50 Creator's Kit provides you with everything you need to step up your video game in one amazingly convenient bundle. FTZ means F to Z, or Nikon F (SLR & DSLR) mount to Nikon's new mirrorless Z mount. Disclaimer: We have attempted to select useful information to include on New Camera, and to ensure that the resources we have included on the site -- as well as the way we have described them -- are accurate, fair, and balanced. Nikon Z50 has a Nikon Z lens mount and currently there are 18 native lenses available for this mount. Approx. N/A, Minimum ISO (boosted): Only 4 left in stock - order soon. Copyright © 2020 NEW CAMERA - All Rights ReservedPowered by WordPress & the Atahualpa Theme by BytesForAll. The Megadap MTZ11 is a new adapter for Leica M lenses on Nikon Z cameras. The adapter, a world’s first according to the company behind it, Megadap can be used with Nikon Z mirrorless cameras and it allows users to pick Leica manual focus lenses and use them with the camera’s autofocus system. N/A, JPEG quality levels: Intelligent Eye-Detection AF: automatically focuses on a subject's eyes, whether they're alone or a face in a crowd. All offers subject to availability and while stocks last. Announced on October 10, 2019, together with two compact DX lenses specifically designed for the camera, the Nikon Z50 packs many attractive features, putting it above entry-level DSLRs like Nikon D3500 and D5600. The 18mm F1.8, 24mm F1.8, and 35mm F1.8. Accessoires pour Nikon Z50. Find out now by reading our in-depth Nikon Z50 review. With its price point of $860 MSRP, it competes head-to-head with other mirrorless … Nikon NIKKOR Z 50mm f/1.8 S 4.8 out of 5 stars 141. Superb image quality: With the same wide Nikon Z mount and a high resolution 20.9MP DX-format (APS-C) CMOS sensor, powered by the fast EXPEED 6 image processor. This will appeal to existing DX format photographers who are keen to move to a lightweight mirrorless option, whilst keeping their existing lenses. Features inherited from the acclaimed Nikon Z7 and Z6 cameras include the wide Z-Mount for lenses, and the fast Hybrid-AF autofocus system. we highly recommend you to get this lens for your New Z50 camera. This will appeal to existing DX format photographers who are keen to move to a lightweight mirrorless option, whilst keeping their existing lenses. So, if you want to do a portrait, macro or landscape you have to buy a DX or FX Lens paired with an FTZ adapter to fulfill your shooting requirements. Note that this is an APS-C lens that will work on the Nikon Z50 camera or with the Z full-frame cameras in crop mode. The lens mount adapter does the job, but is built tough and weighs almost half what the camera body alone weights. Adapter for Canon FD Lens to Nikon Z NZ Z50 Z6 Z7 Mirrorless Camera \"US Seller\" C $16.69. The Z50 camera shown with the DX Nikkor 10-20mm VR zoom lens and FTZ lens mount adapter. NIKON Z50 Digital Camera 16-50mm VR Lens kit Bundle with Mount Adapter FTZ by Nikon. N/A, WB Bracketing: Why We Love the Nikon Z50. This is also adjustable with user settings. The adapter, says the company, is suitable for Nikon Z50, Nikon Z5, Nikon Z6, Nikon Z6 ii, Nikon Z7, Nikon Z7 ii cameras. Z 50 is designed around Nikon's revolutionary Z mount, the widest lens mount of any comparable camera system. N/A, Video Mode Categories: $15.59. N/A, ISO: $1,096.95. Nikon's latest Z-series camera, the third in the lineup, features an APS-C sensor and is being launched alongside two DX-format kit zooms. N/A, Speaker: The new Techart TZM-01 Leica M to Nikon Z autofocus lens adapter is now available for purchase at Amazon and eBay.This is the second M to Z AF adapter option after the Megadap MTZ11 adapter (available at the Photo Rumors Online Store).). If they were, that might be the best way to answer your question. Solid metal mount lens adapter allows Nikon F mount lens (Non-AI, Ai, AIS) to fit on Nikon Z50 Z6 Z7 Mirrorless Camera body. }, New Camera Website, we list all type of new camera information, price review and all type camera rumors, subscribe us or follow us via twitter or facebook. 5.0 out of 5 stars 10 ratings | 10 answered questions Bundle Price: CDN$ 1,269.00 Style: 16-50mm Kit w/ w/ Bonus Adapter Body Only. Apart from Leica M, other adapters can be stacked on top to provide a different lens mount. Silent operation: the Nikon Z50 focuses very quietly and has a silent photography mode. N/A, Self-timer: Mick \"The difference between a professional photographer and other photographers is the pro doesn't show you the bad shots.\" N/A, Camera USB: 16-50mm Kit w/ w/ Bonus Adapter. Image not available. Aside from the new NIKKOR Z DX lenses, you get seamless compatibility with all Z mount lenses. When stopped down to f8 it is extremely sharp. Nikon FTZ adapter will change the focal length of the Lens ? The maximum aperture becomes f/5.6 because of the teleconverter, so you lose one stop of light. It uses an extendable bayonet mechanism (up to 6.5mm) that changes the distance between the lens and the image sensor. With its' compact form, large touchscreen, attractive price point and host of existing and new lenses, we are sure the Z6 will be on many of our customers' radar as a serious mirrorless contender. N/A, Effective pixels (megapixels): Nikon Z50 doesn't have a sensor based image stabilization system but 4 of these lenses already comes with optical image stabilization. N/A, Screen size: N/A, Video Modes: So, if you want to do a portrait, macro or landscape you have to buy a DX or FX Lens paired with an FTZ adapter to fulfill your shooting requirements. Klarna Finance acts as the lender. Free shipping . Creativity comes full circle. Adding the 16-50mm zoom takes the price to $1000 and a two-lens kit with both DX zooms takes the list price to $1350. VOIR … N/A, Screen type: Here I go out and about with the Nikon Z50 & Sigma 17-70mm DC lens. Best Lenses for Nikon Z50 camera. N/A, Touchscreen: N/A, Exposure compensation: Large tilting touchscreen: Featuring a high-resolution (1040k-dot) LCD monitor with smartphone-style touch controls. N/A, Flash range (metres): Les meilleures offres pour Leica M LM L/M Lentille Pour Nikon Z mount adapter compacts Caméra Z6 Z7 Z5 Z50 sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite! Nikon Z50 has a Nikon Z lens mount and currently there are 18 native lenses available for this mount. The new model will appeal to existing Nikon APS-C DSLR photographers due to the ability to use existing lenses together with two new specifically designed zooms. Next. With its price point of $860 MSRP, it competes head-to-head with other mirrorless … The Z50 will be available for sale from November, with an MSRP of $860, body-only. N/A, Custom white balance: Opens image gallery. CDN$ 1,099.00 . In addition to the FX and new DX Z-mount lenses, the existing FTZ Mount Adapter that was released with the Z6/7 is also compatible with the Z50, which means that F-mount lenses can also be used with the new camera. Body Cap BF-1B, Rear Lens Cap LF-N1. N/A, Microphone port: N/A, Storage types: 20.9 Megapixel APS-C CMOS Sensor Made of Brass and Aluminum The maximum aperture becomes f/5.6 because of the teleconverter, so you lose one stop of light. Introducing the Nikon s first DX-format mirrorless camera: The Nikon Z50. N/A, Flash modes: Nikon Z50 Digital Camera with FTZ Adapter from Wex Photo Video. Ergonomics: Designed with a deep grip for comfortable handling, and thoughtfully placed buttons, dials, and touchscreen controls. N/A, External flash: Fast continuous shooting: At up to 11 fps with autofocus (AF) and auto exposure (AE). We highly recommend you get this lens if you are a prime lens lover.\nWings In Cartersville,\nNewspaper Generator For Students,\nPurple Miniature Roses,\nCoriander Erectile Dysfunction,\nStainmaster Carpet Review,\nCrown-of-thorns Starfish Invasive Species,\nWestside Jacksonville, Fl Zip Code,","domain":"optical_engineering"}
{"url":"http://pharmacyequipments.com/detail.php?it_code=Pcc961188125081","date":"2019-07-21T20:56:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527204.71/warc/CC-MAIN-20190721205413-20190721231413-00053.warc.gz","language_score":0.7521043419837952,"token_count":177,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__124102531","lang":"en","text":"Trinocular Stereo Zoom Microscope\nWith Trinocular Head Multipurpose Zoom Microscope with rigid base, revolving head inclined at 45°.\nObjectives : Highly corrected continuous Zoom 1x to 5x.\nEyepieces : 10x Extra Super Wide Field (Paired)\nMagnification : Ranging from 5x to 200x (corresponding to Eye pieces & auxilliary\nIPD : Adjustable from 52 to 75 mm.\nWorking distance : 88 mm.\nAdopters : Adjustable from +6 to 6 on both sides.\nFocusing : 150 mm Coarse and 50mm Fine Focusing .\nIllumination : Incident & Transmitted light are 12V- 20Wt. each. Both can be used\nindividually or simultaneously .\nPacking : In attractive Plywood Box with standard Accessories.","domain":"optical_engineering"}
{"url":"https://www.streamingstore.co.il/product/%D7%AA%D7%90%D7%95%D7%A8%D7%AA-%D7%A1%D7%A4%D7%95%D7%98-%D7%90%D7%95%D7%9C%D7%A4%D7%A0%D7%99-s-2320-bi-color-studio-led-spot-light-160w/","date":"2024-03-04T22:23:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476532.70/warc/CC-MAIN-20240304200958-20240304230958-00317.warc.gz","language_score":0.6565120220184326,"token_count":830,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__68548730","lang":"en","text":"תאורת ספוט אולפני S-2320 Bi-color Studio LED Spot Light 160W\nSWIT S-2320 160W Bi-color Studio LED Spot Light תאורת ספוט אולפני דו צבעים בעוצמת 160W\nניתן להזמנה מראש\nאפשרויות איסוף ומשלוח:\n◉ איסוף בחנות ראש העין - נא לתאם הגעה - 0 ש\"ח\n◉ משלוח לנק' איסוף - 3-7 ימי עסקים - 25 ש\"ח\n◉ משלוח לבית הלקוח - 3-7 ימי עסקים - 50 ש\"ח\nUltra-bright and long-life\nS-2320 is a studio LED spot light, with Chip-on-board LEDs of 50,000 hours lifetime, and generates 160W light output, which is an ideal light source for broadcast studio and field video productions.\n20° – 70° beam angle\nS-2320 outputs 20° – 70° beam angle by adjusting position of the LED board, and 0-100% non-flickering dimmable.\n3000K-8000K continuously adjustable\nS-2320 LED board alternated with 3000K and 8000K LEDs, and the output color temperature can be continuously adjustable between 3000K and 8000K.\nCRI Ra 95; TLCI 95\nCRI (Color Rendering Index) is a measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with a natural light source. And TLCI (Television Lighting Consistency Index) is special for the color reveal ability by camera sensor. Max value 100.\nThe normal LED light has 80-85 CRI or TLCI, while S-2320 offers the super high CRI at 95 and TLCI at 95, and will not lose the object original colors.\nDimmer and Color temperature\nS-2320 adopts standard 5-pin DMX in/out port, supports DMX512 protocol, and adjusts dimmer and color temperature by DMX controller.\nThe dimmer and color temperature occupy 1 DMX address respectively.\nDimmer / color temperature value\nThe rear LCD screen can display the current dimmer percentage, color temperature value, and set DMX address, supports touch control to adjust and set.\nSwitch off fans\nS-2320 adopts silent fans to radiate heat, which will not affect normal shooting environment to record audio.\nWhile in strictly silent required broadcast environment, S-2320 can be switched to “Silent Mode” to turn off the fans. Anyway, during the Silent Mode running, when the light detected temperature over 75 degree, it will be switched off automatically to pretect the LED.\nQuick recover brightness\nS-2320 supports “Sleep Mode”: you can switch off the light by pressing the DIMMER knob, to enter Sleep Mode. And press the DIMMER knob again; the S-2320 can be quickly light up to the previous dimmer value.\nWith black-out cloth\nS-2320 is equipped with 4-leaf metal barn doors, dismountable and rotatable. Meanwhile, the light provides a special black-out cloth to prevent the light leakage.","domain":"optical_engineering"}
{"url":"https://www.dashrsystems.com/faq/are-dashr-lasers-class-3r-or-3b/","date":"2024-02-28T03:15:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474690.22/warc/CC-MAIN-20240228012542-20240228042542-00490.warc.gz","language_score":0.9547229409217834,"token_count":166,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__192108107","lang":"en","text":"Dashr lasers are class 3R.\nDashr uses a visible light laser to make it easier to set-up the system as compared to IR systems where the lasers is not visible. Class 3R lasers range from 1-5 mW and are considered low risk for eye injury. Additionally, our lasers are de-focused – preventing minor vibrations from tripping the system (~2.25in diameter at 10 ft). This adds to the safety component of the system.\nThis being said, we never suggest positioning the laser or the athlete in a manor that has the potential for the laser to enter their eye.\n**Note: There was a misprint on some of our labels that state “Class 3B” as opposed to 3R — these labels are incorrect and we apologize for any confusion.**","domain":"optical_engineering"}
{"url":"https://www.aniscom.co.ke/product/otdr/","date":"2023-03-23T21:38:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945183.40/warc/CC-MAIN-20230323194025-20230323224025-00638.warc.gz","language_score":0.7666513323783875,"token_count":266,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__95264166","lang":"en","text":"- Quick startup\n- FTTX in-service testing (Up to1:64 splitter)\n- Built-in PON power meter for Triple-play testing (Only for SUN-OT5000-PON)\n- High configuration series include optical light source, optical power meter, visual fault locator (VFL) and Optical Connector Inspector (MCI) modules\n- USB data interface (PC software for batch data processing and report output)\n- Dustproof and shockproof (2-meter drop test)\n- Light weight, small size, rugged design and simple operation\n- Visual link image software (Optional)\nHandheld optical time-domain reflectometers (OTDRs) is of light weight, small size, simple operation and various functions. SUN-OT5000-PON series of OTDRs has a built-in PON power meter for Triple-play live testing. SUN-OT5000-H high configuration series is assembled with stabilized laser source, power meter, visual fault locator (VFL) modules and optical connector inspector module (MCI). SUN-OT5000 series can satisfy all kinds of test requirements on FTTX, WAN and backbone optical networks.\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"http://www.marcthescopeguy.com/finders.html","date":"2019-02-22T17:25:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247518497.90/warc/CC-MAIN-20190222155556-20190222181556-00045.warc.gz","language_score":0.9379076361656189,"token_count":1522,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__112714982","lang":"en","text":"CLICK HERE FOR MY HOME PAGE.\nFINDERSCOPES AND REFLEX SIGHTING DEVICES\nSome of my finderscopes and reflex sighting devices.\nWithout the advantage of an expensive GO-TO mount to locate objects in the sky, you have to find objects the old fashioned way- by looking for them using your eyes. Even at lower powers, the average telescope doesn't show a very large portion of the sky.Trying to locate an object by looking through the eyepiece alone can be difficult, especially in areas of the sky without brighter discernable objects to help guide you. Depending on the telescope and setup you have, the image can also be inverted on one or more planes which makes it even more confusing. A sighting or \"targetting\" device makes things a lot easier. Once properly lined up to be aimed at the same spot as the main tube they really help center objects.\nThere are two basic types of sighting devices for telescopes. One is a finderscope, which is really a small, low-power telescope in itself with a large field of view. The other is a \"reflex\" sighting device, which has no lenses and doesn't magnify. Instead it projects a dot, crosshair, bulls eye, etc. onto a clear plate overlapping the real sky view. Each type has it's pros and cons.\nLeft:6X30 finderscope. Right: 9X50 finderscope.\nMost telescopes usually come with a finderscope. They are mounted on a bracket near the viewing end. Every finderscope I have seen has a standard cross-hair in it: two lines that cross each other at right angles in the center of the field of view. They have a low magnification, usually between 6x and 10x, but higher powered finderscopes are available. The numbers represent the magnification and aperture of the finderscope: for example, a 9X50 finderscope has a magnification of 9X, and an aperture (main lens diameter) of 50mm.\nDue to the nature of the lenses, the image in finderscopes like those shown above is upside down and mirrored hoizontally. This can be confusing to some people, as if you are looking for a small, dim point of light (dimmer planet, asteroid, star) amongst others with the use of a map, it's hard to find your way around when they are all just points of light that have been flipped on two planes. For this reason they also sell finderscopes that give a properly oriented image. They use an erecting prism, much like the ones you can buy for a refractor telescope to make the image correct. NOTE: A mirror diagonal is not the same thing as an erecting diagonal. A mirror diagonal only corrects the image on one plane, but leaves it reversed on the other. This is why if you view objects on land with a mirror diagonal in a refractor things appear right-side-up, but are still inverted left to right. Finderscopes that show a correctly oriented image are more expensive than a standard one, so it's up to the individual to decide if the need is enough to warrant the cost.\nFinderscopes are useful for finding objects that are bright enough to be distinguished from the background stars when looking through them. If a galaxy, nebula, etc. is bright enough to be seen in the finderscope, it doesn't really matter if it is upside-down for the purpose of aiming the main telescope. You just center it in the crosshairs and it should be in the main viewfinder.\nREFLEX SIGHTING DEVICES\nLeft to right:Telrad, Rigel quick finder, Antares red dot finder.\nReflex finders have no lenses or mirrors, and don't magnify the image. They consist of an LED light that projects a small circle, dot, or crosshair onto a clear plate. You line up an object by looking into the plate and aiming the telescope until the object is centered on the dot or crosshair. In the case of a Telrad (my favorite reflex sighting device) the diameter of the largest circle in the bull's eye is 2°, no matter how close your eye is when you look at it. Reflex sighting devices can be used to line up the Moon or one of the brighter planets, but they are better than a finderscope for locating an object too dim to show up in a finderscope. Using a reflex finder, you not only see the portion of the sky that is in the clear plate, but all of the surrounding sky as well. Furthermore, since you are not looking through the lense, everything you are seeing is correctly oriented. All you need is a star chart or map showing where the object is, and you can aim the telescope in the right spot.\nAIMING A SIGHTING DEVICE\nIn order for a sighting device to work, it has to be collimated with the main telescope so that they are both pointing in the same spot. Both types of sighting devices are collimated the same way, and it is best done during the day the first time. After ensuring that the sighting device is installed correctly and secure, pick a stationary target a long way off and center it in the eyepiece's field of view (it doesn't matter if it is upside down or sideways). Choose something that has a point on it that can be easily distinguished to tell if it's centered in the finderscope or other sighting device (the end of a pole, top of a tree, or if you're lucky a circular sign). Start off with a low power. This will give you a larger field of view to work with. In the field this is what you would use to find an object, then you just keep re-centering it as the power climbs. Once centered in the eyepiece,lock down the telescope if it has clutches or lockscrews. If it doesn't, be careful not to bump or move the tube.\nNow look through the sighting device. The device must be aimed so that the object you're looking at is centered in the crosshair, dot, bull's eye, or whatever the device uses to center objects. There are small screws or knobs on the mounting bracket or device itself to facilitate this adjustment. On older model finderscopes, you will have to loosen one or more screws slightly before you can tighten another. Newer finderscopes have two screws and one spring loaded support where the 3rd screw would be, and you can turn the 2 screws freely to adjust the devices aim. It doesn't take long to figure out which way to turn which screw to center the object in the sighting device.\nWhether you are using a finderscope or reflex sighting device, it's important to remember that the higher the magnification you use, the smaller the actual portion of the sky you will see in the eyepiece is. While it might be easy to locate an object at 25X in your telescope, that same object might be nowhere in the eyepiece's field of view if you line up your sighting device when your magnifivation is 300X. Start with a lower power, then re-center the object each time as you gradually increase the magnification.","domain":"optical_engineering"}
{"url":"http://www.universaloptics.in/achromatic-lenses.htm","date":"2024-04-15T00:40:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816904.18/warc/CC-MAIN-20240414223349-20240415013349-00428.warc.gz","language_score":0.8856521248817444,"token_count":221,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__46753284","lang":"en","text":"MOQ : 100 Piece\n|Manufacturer, Exporter, Supplier, Retailer, Wholesaler, Trader\n|Click to view more\nPreferred Buyer From\n|India, United Kingdom, United States, Australia, Brazil, Canada\nWe are renowned as one of the most prominent Achromatic Lens Manufacturers in India. The Achromatic Lenses (\"achromat\") are designed to eliminate chromatic and spherical aberrations inherent in singlet lenses. When used on-axis, an achromatic lens focuses unparallel input beam to a perfect \"point\", limited only by the effects of diffraction. This performance can be achieved over a broadband of wavelength. Achromatic Doublet Lens is used to collimate and focus laser beams. They can also be used for high-quality imaging on-axis.\nHi! Simply click below and type your query.\nOur experts will reply you very soon.","domain":"optical_engineering"}
{"url":"https://www.focusmed.hu/en/lasik.html","date":"2023-09-21T16:46:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506028.36/warc/CC-MAIN-20230921141907-20230921171907-00592.warc.gz","language_score":0.9562609791755676,"token_count":374,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__293059952","lang":"en","text":"Focus Medical – VISUMAX\nThe new generation\nof Vision Correction\nThe most recent breakthrough in laser eye surgery, the FEMTO technology, developed by Intralase Corp., is only used by Focus Medical in Hungary. This correction procedure requires state of the art laser technology in which we have invested heavily, used only by our institution in Central-Eastern Europe.\nVision correction laser eye surgery has a 15-year history.\nBased on the tens of millions of interventions performed worldwide, and the 22,000 operations performed at our clinic, the laser vision correction technology we employ can be declared 100% safe.\nWe know that the vision correction is permanent, and the results achieved by the laser lasts a lifetime.\nSo far, no procedure has been able to couple maximum safety with complete painlessness and immediate results.\nThe so-called PRK surgery was completely safe, but the first few days after the intervention were quite uncomfortable, sometimes even painful, and achieving a fully corrected vision took weeks.\nThe so-called LASIK surgery achieved quick and painless results, but the intervention fell short of maximal safety, because sometimes some complications arose.\nTherefore patients were forced to choose between discomfort and safety risks.\nAfter million of FEMTO surgeries, FEMTO has been found to completely unite the advantages of PRK and LASIK surgeries, without their disadvantages.\nWe are not forced to make a compromise, because FEMTO surgeries offer maximum safety, total painlessness and immediate vision correction at the same time.\nFEMTO is an outstandingly precise technology, which enables us to calmly and safely decide for laser vision correction.\nFEMTO surgeries characterized by the three most important advantages (safe, painless, quick) are only performed by Focus Medical with our so-called femtosecond laser equipment.","domain":"optical_engineering"}
{"url":"https://eastwoodoutfitters.com/leupold-gr-20-60x80mm-impact-120377.html","date":"2022-05-25T17:27:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662588661.65/warc/CC-MAIN-20220525151311-20220525181311-00121.warc.gz","language_score":0.8396459817886353,"token_count":420,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__238259976","lang":"en","text":"Reach out to extreme distances and glass with the kind of resolution, contrast, and color fidelity you need to find game in any conditions. Even in low light, this 20-60x80mm spotting scope achieves a level of resolution that's a major advantage in the field. Add the optional Impact Reticle, and you get an MOA scale in the front focal plane for fast and accurate shot calling and trophy measurement at any magnification.\nBuilt around Leupold’s Professional-Grade Optical System, it offers unmatched light transmission that’s designed to outperform in the most challenging lighting conditions. Its industry leading glare reduction provides a clear image in harsh, direct light, while the resolution and clarity will meet the demands of any professional guide or shooter in the field.\nLike all Leupold® spotting scopes, it's fogproof, waterproof, and guranteed to perform for life. It's also designed, machined, and assembled in the USA.\n|Objective Diameter (mm)||80|\n|Linear FOV Low Mag ([email protected])||121|\n|Linear FOV High Mag ([email protected])||42|\n|Angular FOV Low Mag (Degrees)||2.3|\n|Angular FOV High Mag (Degrees)||.8|\n|Eye Relief Low Mag (mm)||30|\n|Eye Relief High Mag (mm)||30|\n|Exit Pupil Low Mag||4.1|\n|Exit Pupil High Mag||1.3|\n|Close Focus Distance (ft)||25|","domain":"optical_engineering"}
{"url":"http://geekmodish.com/laser-lightning-bavaria/","date":"2023-03-21T19:44:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943746.73/warc/CC-MAIN-20230321193811-20230321223811-00543.warc.gz","language_score":0.9182755947113037,"token_count":128,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__165539776","lang":"en","text":"On Thursday 18 August, the sky above the Allgäu Public Observatory in southwestern Bavaria was an amazing sight, with the night lit up by two very different phenomena: one an example of advanced technology, and the other of nature’s dramatic power.\nAs ESO tested the new Wendelstein laser guide star unit by shooting a powerful laser beam into the atmosphere, one of the region’s intense summer thunderstorms was approaching. Heavy grey clouds threw down bolts of lightning resulting in a breathtaking image that looks like a scene from a science fiction movie.\nMore at ESO.org.\nNo comments yet.","domain":"optical_engineering"}
{"url":"https://www.sonyphotorecovery.com/sonyphotorecovery/recover-lostphotos-rx10-III-dscrx10m3-camera.php","date":"2023-12-05T08:58:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00524.warc.gz","language_score":0.9166216850280762,"token_count":1249,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__226644316","lang":"en","text":"IS your most memorial photos are lost from RX10 III with F2.4-4 large-aperture 24-600mm zoom lens DSC-RX10M3? Have you faced the problem of by mistake photo deletion from Sony Camera? Is your Sony camera is infected by the virus? Do your all stored photos are getting corrupt from a camera? Did you want to retrieve lost photos from RX10 III with F2.4-4 large-aperture 24-600mm zoom lens DSC-RX10M3 then read the below article.\nThe RX10 III with F2.4-4 large-aperture DSC-RX10M3 is the best Sony Digital camera which has advanced technology to take shots with the distance up to 24 mm to 600 mm. Due to its large distance taking the shots the user can take the shots of an object which is so far from the camera. The large diameter in this camera is with the F2.4-4 extremes technology. When this camera user uses the zooming to take the shots and videos then that time it provides the superior corner to corner image sharpness. This Sony model os camera contains the eight ED glass elements in which two are the ED aspherical and one Super ED glass elements are present. This ED glass elements makes the large aperture and also provides the stunning image quality by using the ultra-telephoto range technology.\nThis Sony Camera has one of the best sensor facility which of type 1.0 type of diameter 13.2mm x 8.8 mm. The sensor of this camera is updated with the technology of Exmor CMOS sensor and releasing the aspect ratio of 3:2. The highest pixels provided by this model is approx 20.1 megapixels.\nAbout its lens type. ZEISS Vario-Sonnar T lens type is added in this model and total 18 elements of the lens are provided in the camera in 13 groups where 6 are in aspherical including the AA lens. After taking the shots the clear image is categorized as for 20M approx 50x, for 10M approx 70x, for 5M approx 100x, for VGA approx 380x.\nThe maximum aperture of the lens is the F2.4(W) to 4.0(T). The highest focal length is from 8.8 mm to 220 mm. The optical zoom is the 25x.\nThe Large LCD screen is provided by this camera is the 7.5 cm of 3.0 type. There is also provided the five-step photo brightness control just by using the manual steps and the user can also take shots in the sunny weather mode. The LCD screen can adjustable up to the angle of 107 degrees and down up to 42 degrees.\nThe camera feature of this model is to take SteadyShot with optical, for movies by using the intelligent mode. The noise reduction specification is added in the camera due to that the uses can take the shots in the noisy area.\nThe auto scene mode is can select by the user are Portrait, Macro, Sports Action, Landscape, sunset night scene, Handheld Twilight, Night Portrait, and Anti Motion Blur. The continue taking shots speed is up to approx 14fps with speedy and continuous shooting approx 5fps. The drive mode can also select by the user are single, continuous shooting, speed priority continuously, Self-timer, self-time count.\nThe Sony camera users are also taking the advantage of this camera of image control where users can control the image by just using the contrast, saturation, Sharpness, creative style, color space, quality with Raw, Raw and JPEG, JPEG fine, Fine, Standard, etc. The maximum number of recognized scenes of the image is 44 and for the movie is 44.\nThe users also get the best facility of recording feature. The maximum compatible recording media are supported by this camera is Memory Stick Duo, Memory Stick Pro Duo, Memory Stick, Pro Duo, Memory Stick Pro Hg Duo, Memory Stick Micro, SD Memory Card, SDHC Memory Card, SDXC Memory Card, microSD Memory Card, microSDHC Memory Card, and microSDXC Memory Card. The best recording videos facility is also provided by the Sony company where users can watch the HD of videos and the supported format are JPEG, EXIF Ver. 2.3, MPF Baseline, RAW, for AVCHD format Ver. 2.0 compatible, and MP 4.\nIf the user using the Sony camera and start taking the shots without checking the memory card is detected by the camera is not.\nAfter taking the shots from the Sony camera then it starts sharing with friends via online and the virus gets alter into the camera.\nWhen the user browsing the camera and the middle of them he/she by mistake click on the delete button then the all saved photos are get deleted.\nIf the user removes the memory card from the camera and they connect with their personal computer by using the bad card reader then the pins of the card are getting damaged.\nThe maximum user is always demanding to fix the issue of photos deletion or photos lost from RX10 III with F2.4-4 large-aperture DSC-RX10M3. So, advised them to download the Sony Photo Recovery Software which is the best tool to retrieve lost photos from Sony Camera. This tool is also successful in recovering all media files from the memory card of digital camera.\nThe Sony Photo Recovery Software has the several features that may attract to the Sony camera users. This tool is used to regain all type of photos from Sony camera like jpeg, jpg, bmp, png, 3gp, tiff, gif, etc. This tool contains the image retrieval application which is get installed by the tool in the system such that they can easily recover corrupt photos. This tool is updated with the advanced technology like advanced search, raw search, or standard search for the fast and easy recovery process. So, download this tool and retries the most memorable photos from Sony Camera.\nSoftware steps for Windows operating system:","domain":"optical_engineering"}
{"url":"http://abe-group.eu/en/pipeline-inspection-products-and-systems/camera-heads-pan-and-rotate-camera/","date":"2024-04-12T15:16:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816024.45/warc/CC-MAIN-20240412132154-20240412162154-00120.warc.gz","language_score":0.8890014886856079,"token_count":262,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__9204744","lang":"en","text":"A swivelling head of the inspection camera made of light alloy allows it to move in two planes: horizontal, in the range of 360◦ and vertical, in the range of 270◦. Head rotation drives are equipped with micro-clutches which protects micromotors against damage. Seal used enables operation in full immersion conditions.\nLED ring allows the image to be maximally illuminated inside the pipeline. High quality LEDs ensure long, trouble-free operation; according to the manufacturer: 70% of brightness after 50 thousand hours. LEDs are covered with a special plastic ring with enhanced impact resistance. In the case of large diameter pipes it is possible to connect additional light sources.\nIn the head we use the highest quality colour image sensors from Sony, operating from 470 up to 650 lines of resolution. Depending on the image sensor, the cameras are equipped with:\n- optical zoom,\n- digital zoom,\n- automatic focus control,\n- manual focus control,\n- iris control functions,\n- 0.025 Lux sensitivity.\nThe use of CCD allows for outstanding quality colour image in PAL system. Head functions are controlled from the operator panel.\nAll our devices have the CE certificates and the necessary approvals required and accepted in the EU.","domain":"optical_engineering"}
{"url":"https://focusvisionhh.com/promotions","date":"2021-09-28T14:20:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060803.2/warc/CC-MAIN-20210928122846-20210928152846-00220.warc.gz","language_score":0.8504912257194519,"token_count":122,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__20347971","lang":"en","text":"Get a pair of Masq frames, single vision lenses, with polycarbonate and Anti-reflective coating.\nAll frames are 20% off.\n20% off of all lens options\nIncluding thinner lenses, anti-glare coating, UV protection, transitions, etc.\nRebates available upon purchase of a year supply of contacts.\n*Rebate amount differs according to brand of contacts.\nRegular Price: $150\nFirst Time Triers: $75\nBulk Session of 5: $500\nBulk Session of 10: $750\n50% off selected frames.","domain":"optical_engineering"}
{"url":"https://thgrow.com/en/1016-leds","date":"2023-04-02T05:46:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950383.8/warc/CC-MAIN-20230402043600-20230402073600-00752.warc.gz","language_score":0.986472487449646,"token_count":106,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__105497663","lang":"en","text":"Are you a new customer? Start here.\nLEDs are composed of light-emitting diodes and were first used by NASA in the early 1980s. It was the technology selected for its long lifetime and because almost all of its energy consumed is used by plants, so it was suitable to be used in long space trips. The main advantage of LEDs is that they do not waste energy in the form of heat, so electricity consumption can be reduced by 40% in some cases.","domain":"optical_engineering"}
{"url":"https://lightingwholesaler.com/products/lumien-brass-micro-wall-light-1","date":"2023-11-28T16:00:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099892.46/warc/CC-MAIN-20231128151412-20231128181412-00172.warc.gz","language_score":0.7267864346504211,"token_count":98,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__192194986","lang":"en","text":"Brass Micro Wall Light, Hooded Surface Mount Option, 2.5 Watts, 10-15V, 240 Lumens\n- Fully integrated 3.5W light source\n- Twist and Lock Connection Type for easy installation\n- Features 3 LED chips for an even spread of light minimizing \"hot spots\"\n- Available in multiple kelvin temperatures: 2700K & 3000K\n- IP65 Rated\n- Lifetime Warranty on Brass Housing\n- 10 Year Warranty on Light Source","domain":"optical_engineering"}
{"url":"http://www.cbi.uni-erlangen.de/forschung/exzellenzcluster.shtml","date":"2017-09-20T16:19:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818687333.74/warc/CC-MAIN-20170920161029-20170920181029-00052.warc.gz","language_score":0.8902639746665955,"token_count":554,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__241330128","lang":"en","text":"CBI in Erlangen – Verfahrenstechnik par Excellence\nBei der Vergabe der Exzellenzcluster im Jahr 2007 hat das CBI hervorragend abgeschnitten.\nGraduate School in Advanced Optical Technologies (SAOT)\nThe Erlangen Graduate School in Advanced Optical Technologies (SAOT) was established at the University of Erlangen-Nuremberg in November 2006 within the framework of the Excellence Initiative of the German federal and state governments to promote science and research at German universities.\nThe scientific focus is placed on optics and optical technologies which are key technologies of the 21st century. Applications of optical technologies in science and industry are found, for example, in information and communication technology, in process engineering, in production engineering, in energy and environmental technology and in medicine. Optical technologies form an interdisciplinary framework for scientific enterprise with important scope for innovation at the interfaces between the disciplines of physics, engineering and medicine. SAOT is Excellence, Internationality and Interdisciplinarity in research and education.\nFor more information please visit http://www.aot.uni-erlangen.de.\nEngineering of Advanced Materials (EAM)\nAdvanced materials with properties tailored on the molecular and mesoscales are expected to stimulate evolutionary advances and revolutionary breakthroughs in emerging key technology areas such as information and communication as well as catalysis, energy, and transportation. Hence, the ability to design novel materials and processes will have a strong impact on assuring industrial competitiveness, economic growth and a better quality of life. Based on the unique combination of the top-ranked Engineering and Natural Science Faculties at the FAU, the scientific concept of the proposed CE focuses on the science and engineering of hierarchical materials organised from the molecular to the macroscopic levels. Bridging the gap between materials design at the molecular level and macroscopic component and system engineering requires the development of adequate approaches capable of covering an extensive range of time and length scales in modelling and simulation, processing and manufacturing, as well as structure, property and process analytics. Based on a coherent methodological approach selected priority areas of research will be explored, including\n- engineering of nanoelectronic materials,\n- engineering of photonic and optic materials,\n- engineering of catalytic materials,\n- engineering of lightweight materials.\nDemonstrators will be developed in these research areas in close cooperation with external academic and industrial partners integrated in the CE. The vision of the CE is to bridge the gap between fundamental research and real-world applications of modern high-performance materials in key scientific and engineering areas.\nFor more information please visit http://www.eam.uni-erlangen.de.","domain":"optical_engineering"}
{"url":"https://galileoteachers.org/the-moon-looks-like-a-big-cheese/","date":"2024-04-20T08:25:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817491.77/warc/CC-MAIN-20240420060257-20240420090257-00741.warc.gz","language_score":0.9282482862472534,"token_count":858,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__119109530","lang":"en","text":"by Grom Matthies\nWhen the Moon is full, as it rises on the horizon, sometimes it looks like a big cheese. People can swear that it is bigger near the horizon than up there in the sky. Is this a Moon Illusion? Why does this happen?\nA good explanation can be found here: http://science.nasa.gov/science-news/science-at-nasa/2005/20jun_moonillusion/\nHow about you try it yourself. Make pictures of the Moon along the night and try to find out if this is true or not. To help you in this quest we have assembled a nice set of tips to Photograph the Moon.\nPhotographing the Moon through a telescope\nAstronomers use sophisticated and dedicated cameras to take images from objects in the sky. Those cameras are directly attached to a telescope, which then works rather like a special telephoto lens.\nOne alternative to capture the moon with more conventional cameras is called ocular projection. Here a camera captures what your eye sees through the telescopes exit lens, the ocular. You would usually need a support to attach and keep the camera at the optimal position over the oculars exit lens, but with a bit of trial and error, persistence and a sturdy hand, it can be done without anything special.\nWhat is needed\nA working telescope pointing to the moon\nAny type of camera. With lot of luck even those of mobile phones may work.\nOptional is patience, luck, persistence and no naggers around.\nFirst, center the lunar landscape you wish to capture with the telescope. If the telescope does not follow your target automatically, compensating Earths rotation, you may have to figure out how much time you take to get a picture taken. You then offset the moon inside the telescopes view for the right amount, so once the estimated time has passed your target object is back in the center field of view. On telescopes without automated tracking of the sky, keep the magnification as low as possible by using oculars with longer focal length, i.e. with higher numbers printed on them than on other available oculars.\nIf possible, disable autofocus and set your camera to focus to infinite. Usually it serves to focus the horizon or set the camera to capture panoramic view. If adjustable, use exposure times below 1/30 sec and consider trial exposures with at least four different time settings.\nNow, hold your camera lens perfectly aligned with the telescopes exit lens and keep it at a very short distance, usually no more than two fingers thickness. Every ocular and photo lens work different, so you will have to figure out what distance between ocular and camera lens will produce the largest field of view and still allows for a sharp image. The image you see is likely surrounded by lot of black space. This looking through a tunnel effect is unavoidable.\nFinally, use the telescopes focuser button, not the camera, to sharpen the image. On digital cameras, use the life-view to evaluate the sharpness. For all other camera types, you will have to find a method to get a sharp image or just have plain luck.\nIf you have time or can repeat the experience on several days, figure out how much space you need between camera and telescope. Use a cardboard tube that tightly fits over the ocular. Cut it to a proper length so that the camera can be placed flat onto the tube. The idea here is that you do not have to try to find the correct distance every time you want to take another image. This also will reduce stray light entering the camera lens. Just place the tube over the ocular, hold the camera flat onto the tubes upper rim, center and focus the image…and shoot.\nYou can easily record one or every single phase of the Moon or capture the beauty of our Moon set against a landscape you like. This can be done with any type of camera, being it digital or with conventional film. Download and print a single page Pdf-file (click here) with a few suggestions and guidelines to consider for different ways to image the Moon.\nPhotographing the Moon with a camera","domain":"optical_engineering"}
{"url":"https://www.pricefalls.com/store/seekoptics/","date":"2023-09-29T20:39:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510528.86/warc/CC-MAIN-20230929190403-20230929220403-00681.warc.gz","language_score":0.9181933403015137,"token_count":283,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__148643376","lang":"en","text":"Seek Optics, Inc is a proud Southern California company based on customer feedback. After many years of experience in the Optical Industry, we specifically developed lenses and coatings that are durable, protective and high quality to meet the needs of the most demanding customers. Our mission is simply is to offer the highest quality optical lenses at a fair price.\nThe entire line of Seek Optics lenses use an advanced Nano-DSX technology developed in Japan. Using a special hard coating, and a double-sided dip-coating method, we achieved an excellent anti-oil prevention (oleophobic) which makes our lenses extremely easy to clean.\nSeek Optics hard-coating uses Wrap-Coating Technology. The surface of our lenses has a super-hard wearing protection layer and enhanced lens surface hardness which extends the service life of the lenses. Seek Optics hard-coated lenses with our wear and tear resistant surface do not easily scratch or crack.\nSeek Optics is a manufacturer and distributor of replacement sunglasses lens only and does not offer, market, or sell replica or counterfeit products. Seek Optics is not affiliated with Oakley, Ray Ban, Costa Del Mar, Ray Ban, Rudy Project, Spy Optics, Von Zipper, or any other manufacturers mentioned on this site. All references to the aforementioned trademarks or brands on this website or elsewhere belong solely to said respective trademark owners.","domain":"optical_engineering"}
{"url":"https://repository.lib.tottori-u.ac.jp/en/list/authors/%E3%83%AA/04919/item/8017","date":"2023-02-08T23:01:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500983.76/warc/CC-MAIN-20230208222635-20230209012635-00826.warc.gz","language_score":0.7797207832336426,"token_count":633,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__131451120","lang":"en","text":"mcr8(4)_mi8040112.pdf 6.28 MB\nIsoyama, Ryota Graduate School of Engineering, Tottori University\nTaie, Manami Graduate School of Engineering, Tottori University\nKageyama, Tomoaki Graduate School of Engineering, Tottori University\nMiura, Masashi Graduate School of Engineering, Tottori University\nMaeda, Akihiro Environment Sanitation Research Center\nMori, Akihiro Environment Sanitation Research Center\nwater quality monitoring\nchlorophyll a concentration\nwireless sensor network\nWe have been developing a wireless sensor network system to monitor the quality of lake water in real time. It consists of a sensor module and a system module, which includes communication and power modules. We have focused on pH, turbidity and chlorophyll a concentration as the criteria for qualifying lake water quality. These parameters will be detected by a microfluidic device based sensor module embedded in the wireless sensor network system. In order to detect the turbidity and the chlorophyll a concentration simultaneously, we propose a simple optical measurement method using LED and photodiode in this paper. Before integrating a turbidity and chlorophyll a concentration sensor into the microfluidic device based pH sensor, we performed feasibility studies such as confirmation of the working principle and experiments using environmental water samples. As a result, we successfully verified our simultaneous sensing method by using a simple optical setup of the turbidity and the chlorophyll a concentration.\n(C) 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).\nIsoyama Ryota, Taie Manami, Kageyama Tomoaki, et al. A Feasibility Study on the Simultaneous Sensing of Turbidity and Chlorophyll a Concentration Using a Simple Optical Measurement Method. MICROMACHINES. 2017. 8(4). doi:10.3390/mi8040112\nFaculty of Engineering/Graduate School of Engineering\n|Web of Science Key ut||","domain":"optical_engineering"}
{"url":"https://giveawaygratis.xyz/sony-alpha-zv-e10-mirrorless-vlogging-camera-launched-in-india/","date":"2023-02-02T23:51:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500041.2/warc/CC-MAIN-20230202232251-20230203022251-00380.warc.gz","language_score":0.9012834429740906,"token_count":889,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__22505482","lang":"en","text":"Sony Alpha ZV-E10 Mirrorless Vlogging Camera Launched in India\nThe Sony Alpha ZV-E10 mirrorless interchangeable lens camera was launched in India today. Sony’s newly launched camera is aimed at vloggers and content creators. It comes with the company’s advanced imaging technology with extensive usability and a custom feature set optimized for creators. The interchangeable lens feature on the Sony vlogging camera adds versatility and advanced autofocus with real-time tracking and eye autofocus for on-the-go photography.\nSony Alpha ZV-E10 Price in India and Availability\n– Advertisement –\nThe Sony Alpha ZV-E10 camera has been launched in India with a price tag of Rs 59,490 for the body only. While the camera with SELP1650 kit it will cost you Rs 69,990. The mirrorless camera will be available for purchase starting today. at all Sony Centers Alpha Flagship stores, www.ShopatSC.com portal, major e-stores and e-commerce websites (Amazon and Flipkart).\nSony Alpha ZV-E10 specifications and features\nThe Sony Alpha ZV-E10 comes in a lightweight design. The camera includes a side-opening flip-up LCD screen that allows creators to attach external microphones to the top of the camera. This is beneficial when shooting in selfie mode and from high and low angles. Sony’s mirrorless also includes additional features such as a new Still/Movie/Slow and Quick motion button located on the top of the camera, which allows creators to easily switch between the desired shooting mode with a single touch.\n– Advertisement –\nThe Sony Alpha ZV-E10 mirrorless camera is equipped with a 24.2-megapixel APS-C Exmor CMOS sensor and BIONZ X image processor, which produces realistic, high-quality and detailed images. The camcorder also includes features such as ‘Background Blur’, which can seamlessly switch between a blurred (bokeh) and sharp background, as well as a ‘Product Showcase Setting’ mode, which allows the camera to automatically shift focus from the subject’s face to the subject. is highlighted.\nThe Alpha ZV-E10 offers electronic image stabilization with active mode for stable video recording. Advanced autofocus technology provides fast and accurate AF along with high-quality audio for clear audio recording. Fast hybrid AF and Real-time Eye AF for video, Real-time Tracking, which allows the camera to track the subject’s face and eyes for fast and accurate autofocus. The user can also customize the camera’s AF settings, such as AF Transition Speed and AF Subject Shift Sensitivity, and choose between fast or slow focus according to their creative preferences.\nThe Sony camera also comes with an interchangeable lens feature that allows the user to expand their creative imagination and expression according to their content. While the inclusion of a headphone jack allows the user to plug in headphones and accurately monitor audio recordings. Audio output timing can also be set for Live or Lip Sync. The Sony Vlogging camera uses the original Face Priority AE (automatic exposure) algorithm, which can detect the subject’s face and adjust the exposure to ensure that the face is displayed with optimal brightness, even when taking selfies in scenes with extreme lighting changes and when turns the subject’s face away from the camera for a moment.\nThe Alpha ZV-E10 camera enables 4K video recording through full pixel readout without pixel merging and slow and fast motion with high-speed Full HD recording at 120 frames per second. The mirrorless camera also offers the XAVC S codec with a high transfer rate of 100 Mb/s when recording 4K and 50 Mb/s when recording Full HD. By pairing the camera with a prime lens, the user can zoom without losing video resolution, preserving full 4K video. The user can also choose from 8 zoom speed settings for more creative flexibility.\nFor the latest information on gadgets and technology and gadget reviews, follow us on Twitter, Facebook and Instagram. Subscribe to our YouTube channel for the latest technology and gadget videos. You can also keep up-to-date with the Gadget Bridge app for Android. Find the latest news on cars and bikes here.\n– Advertisement –","domain":"optical_engineering"}
{"url":"http://tech-review.net/news/apple_39_s_mixed_reality_headset_will_get_two_8k_displays/2021-02-04-1212","date":"2021-05-10T03:04:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989030.65/warc/CC-MAIN-20210510003422-20210510033422-00619.warc.gz","language_score":0.9500926733016968,"token_count":276,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__160921612","lang":"en","text":"Apple's mixed reality headset will get two 8K displays\n|Today, The Information published new details about the upcoming mixed reality glasses from Apple. The first rumors about working on the Apple headset appeared quite a long time ago and at the moment the company is conducting one of the final stages of testing it. |\nAccording to The Information, which has links to a certain source from Apple working on this project, the mixed reality glasses will have two built-in displays with a resolution of 8K. This is a very important point, because the low resolution negatively affects the perception of the image, given that the eyepieces are located in front of the eyes at a distance of several centimeters. And at the moment, there are no mixed reality headsets with such a matrix resolution on the market yet. More than a dozen cameras will be placed on the device body to capture the environment and display it on integrated displays. These cameras will also be used to track hand movements. Inside, special sensors will be installed to track eye movement.\nTo properly scale virtual objects, the glasses are also equipped with high-precision LiDAR scanners, which are now used in the older iPhone and iPad Pro. As for the hardware filling, it is known that Apple is developing its own family of chips for glasses.\n|Views: 23 ||\n|Total comments: 0|","domain":"optical_engineering"}
{"url":"https://kodekishmot.wordpress.com/2012/03/03/bbc-news-new-potato-spotting-ai-built-with-off-the-shelf-tech/","date":"2018-04-19T11:36:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125936914.5/warc/CC-MAIN-20180419110948-20180419130948-00574.warc.gz","language_score":0.9450914263725281,"token_count":178,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__217421940","lang":"en","text":"TADD – or the Trainable Anomaly Detection and Diagnosis system – is able to “detect, identify and quantify many of the common blemishes affecting potatoes”, Dr Tom Duckett of the University of Lincoln told the BBC.\nThe key innovation, in Mr Duckett’s view, is the learning software which is trained by a human expert to identify diseased or damaged produce.\n“Existing computer vision systems have to be programmed and calibrated. Our system is different it learns from some samples provided from a human expert,” he said.\nTADD is only a vision system at present, but just spotting an off-colour spud is harder than it sounds.\n“When potatoes get too much light they tend to go green, but in red potato varieties greening looks more black,” said Mr Duckett.","domain":"optical_engineering"}
{"url":"https://fargo.vancethompsonvision.com/blog/vance-thompson-vision-first-to-offer-panoptix-to-cataract-patients","date":"2021-11-30T17:33:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359065.88/warc/CC-MAIN-20211130171559-20211130201559-00231.warc.gz","language_score":0.9307234287261963,"token_count":571,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__199539333","lang":"en","text":"Vance Thompson Vision first to offer PanOptix® to cataract patients\nMore than four million cataract surgeries are performed each year in the U.S. and the number is projected to increase by more than sixteen percent by the end of 20241,2. At Vance Thompson Vision, there are now more options for cataract sufferers. Thanks to the U.S. approval of a new technology, Vance Thompson Vision offers the first and only trifocal lens for patients undergoing cataract surgery, AcrySof® IQ PanOptix® Trifocal Intraocular Lens (IOL).\nPanOptix® is clinically shown to offer patients a combination of near, intermediate, and distance vision while reducing the need for glasses after surgery3,4. This new trifocal IOL from PanOptix® uses a proprietary design, ENLIGHTEN® Optical Technology, that optimizes outcomes for cataract patients looking to correct their vision at all distances.\n“I think the most amazing thing we notice with the PanOptix® lens is the range of vision it gives patients and how that excites them,” Dr. Vance Thompson said. “Patients are surprised they can experience the vision of their younger years as part of their cataract surgery experience.”\nDr. John Berdahl is pleased that this trifocal IOL technology, already in use in more than 70 countries, is now offered at Vance Thompson Vision. “Until now, no single lens available in the U.S. provided distance, intermediate, and near vision. The PanOptix® lens gives each eye the ability to see well at those distances.”\nVance Thompson Vision was one of twelve investigational sites in the U.S. who took part in the FDA-monitored clinical trial for PanOptix®. The results of this study showed high patient satisfaction with more than ninety-nine percent of PanOptix® patients saying they would choose the same lens again.\nDr. Thompson said that this IOL has been life-changing for his patients and he’s looking forward to the future. “I think the PanOptix® technology is a very big deal and is going to help advance cataract surgery in our country.”\n“It’s important to participate in FDA-monitored studies so we can be on the forefront of new innovation,” Dr. Berdahl said. “In bringing this technology to market, we can offer a number of different options to fit a patient, not a patient to an option.”\nTo learn more about this treatment or other treatments that might be best for you, schedule a cataract consultation by calling Vance Thompson Vision.","domain":"optical_engineering"}
{"url":"http://hptg.com/technology/overview","date":"2013-05-21T08:36:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368699812416/warc/CC-MAIN-20130516102332-00040-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8989270329475403,"token_count":183,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__200922854","lang":"en","text":"Heptagon’s revolutionary wafer-level integration and process technologies enable high volume manufacturing of extremely precise, miniaturized optics systems.\nBy combining proprietary design and processes in developing micro-optics solutions, we enable greater design flexibility, increased performance, reduced form factor, lower total system costs, and improved aesthetics of mobile devices such as smart phones and tablets.\nReflowability allows the integration of micro-optics solutions directly on the printed circuit board before running the lenses and modules through the assembly process. Reflowability simplifies and lowers the cost of manufacturing as compared to traditional pick-and-place lens assembly, where the manufacturing process must be interrupted for the lens to be physically placed into the device.\nBy controlling the end-to-end supply chain, from design to manufacturing, Heptagon ensures that our micro-optics solutions are manufactured in high volume with consistent quality.","domain":"optical_engineering"}
{"url":"http://www.hejump.com/news/16.html","date":"2020-07-14T07:36:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657149205.56/warc/CC-MAIN-20200714051924-20200714081924-00505.warc.gz","language_score":0.9353947639465332,"token_count":838,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__8930595","lang":"en","text":"Writer: admin Date:2019-11-02\nIn today's lighting industry rapid development, LED light source with its fixed point, the directional spectrum, high brightness, high purity, cold light, adjustable color temperature, long life and other characteristics, in the smart plant lighting, landscape lighting and lighting, medical lighting in areas such as the rapid development.Although compared with the LED lighting market, LED output value in the field of medical lighting may be tiny, but medical lighting belongs to the medical apparatus and instruments, there are strict regulations and certification requirements, extremely strict in terms of technology, safety rules, compared with the ordinary functional lighting, technology risk bigger, high entry barrier.As the society for health care, medical rehabilitation, green environmental protection and energy saving, LED the medical lighting will set up a new land in the domestic market.\nMedical products according to the specific function of lighting specific named dental lamp, head lamp, operation lamp, shadowless lamp, lamp, disinfection lamp and lamp, etc.Medical operation shadowless lamp is an important and indispensable for surgical site lighting devices, it requires both can let doctors best observed at the notch and the body cavity of objects of different depth, size, low contrast;Should be \"no shadow\" and \"light\".Traditional shadowless lamp price comparison is widely accepted low halogen tungsten lamp light source, it is easy to appear improper filters, infrared thermal radiation and surgery in patients with regional problems such as drying, and using LED as light source shadowless lamp can solve the above problems.As the requirement of people for medical lighting, LED light source rapid development because of its special advantage, prospects are bright.\nBy CSA Research available, from 2011 to 2015, Chinese medical lighting lamps and lanterns to the rapid growth of the total exports from $16 million in 2011 to $25 million in 2014, exports increased by almost $10 million.Export to more than $2300 in 2013, the growth rate of 44%, in the first half of 2015, China's medical lighting exports reached $13 million, compared with 2014 increased by 34% in the first half.\nAlthough the entire LED industry products export scale, its export volume has reached $5 billion in 2015 the previous year, medical lighting industry is a \"thin\" points of the industry, its exports relative to the LED lighting products export vary widely, but with the launch of the new medical reform in health care capacity and establish a basic medical and health system, driven by medical lighting industry will continue to maintain rapid growth.\nFrom 2011 to 2015 years of development, the development of Chinese medical lighting is in a transition period, with the improve of technology and society for the urgent need of medical lighting, medical lighting in our country will realize a full-blown.\nChinese medical lighting according to the light source can be divided into traditional medical lighting lamps and lanterns and LED lighting lamps and lanterns, at present our country exports the global medical products are still in the traditional lighting lighting products, the export of traditional lighting lamps and lanterns in 2011 to $14 million, accounting for about 91% of the total amount of export, only $2011 in 2011 LED medical lighting lamps and lanterns, accounted for only 9%, from 2012 to 2015 in the first half of the LED medical lighting lamps and lanterns of exports has been on the rise, as in the first half of 2015, LED the medical lighting exports accounted for 25%, compared with 2011, LED the medical lighting exports accounted for about nearly tripled.LED medical lighting lamps and lanterns, exports are also growing rapidly, the growth rate of exports in 2013 reached 100%.\nCSA Research that LED medical lighting lamps and lanterns of export quotas in our country is lower than the traditional medical lighting products for two things: first, the late start, backward technology, medical lighting for LED products in China r&d begin until 2007.Second, relevant enterprises of our country has entered the LED medical lighting equipment industry barriers is higher, large medical equipment enterprise mostly just incidentally medical lighting products, there are few professional manufacturers.Previous: Industrial design and lighting to accelerate convergenceNext: International lighting fair in Guangzhou","domain":"optical_engineering"}
{"url":"https://airmatrix.info/en/pomiar-w-airmatrix/","date":"2019-08-23T11:19:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027318375.80/warc/CC-MAIN-20190823104239-20190823130239-00339.warc.gz","language_score":0.9203771948814392,"token_count":216,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__143706225","lang":"en","text":"AirMatrix sensors use optical measurement to determine the content of suspended particulate matter in the air. Currently, AirMatrix sensors allow to determine the content of fine particulate matter (PM2.5). A diode emitting infrared radiation and a detector in the form of a phototransistor, have been used in the device. The goal of the detector is to register the radiation reflected from the suspended particles, thanks to which it is possible to assess the content of the particles in the air. The detector converts the information concerning the quantity of the reflected radiation to voltage, proportional to the content of PM2.5 in accordance with the characteristics presented in the picture below.\nThe correctly constructed electronic system, manages the measuring procedure through activating the light source and detector in planned intervals. The flow of air through the device is forced by a fan, and the airflow is directed by a specially designed duct system. The developed algorithms for processing signals, analyze and convert the sensor’s measurements, ensuring a high reliability of the measurements in terms of the system’s various operations.","domain":"optical_engineering"}
{"url":"https://aperfectreview.com/samsung-working-on-isocell-600mp-camera-sensor/","date":"2023-12-03T16:21:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.42/warc/CC-MAIN-20231203161435-20231203191435-00854.warc.gz","language_score":0.9227555394172668,"token_count":598,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__299476997","lang":"en","text":"Earlier this year Samsung’s Sensor Business Staff Head, Yongin Park revealed that the company is planning for a Isocell 600MP sensor for smartphones. According to Yongin, the sensors will capture the image in 4K/8K resolution with the precision of the human eye (500MP).\nThe image sensor captures the incoming light and produces a digital image from it. These image sensors contains millions of photosites called pixels (which captures light). And, the total number of these light capturing photosites is termed as Megapixels.\nAs of now, the largest available image sensor is 108-megapixel. Now it appears Samsung goes ahead with its plan.\nOn 5th December, a famed tipster, IceUniverse (@universeice) on Twitter claimed that the company started working on the ISOCELL 600MP sensor that is 1/0.57-inches in size. IceUniverse tweeted, “Samsung is really doing 600MP sensors!”, with a confidential investor’s note.\nThe image also shows the problems that the company might face while working on the 600-megapixel camera sensor.\nAt present, Huawei P40 Pro+ has the biggest camera sensor that is 1/1.28-inches in size.\nHowever, there’s a catch, that this sensor may not be popping out quickly since Samsung is engaged on decreasing the camera bump. The leaked picture also shows that a sensor this huge would take 12% of the smartphone’s back and will protrude as much as 22mm out of the smartphone’s body. So, it’s hard to expect the 600-megapixel smartphone in the next few years.\nEarlier this year, Park also revealed that the upcoming ISOCELL 600MP sensor (ISOCELL600) wouldn’t be simply restricted to smartphones. It will likely be used in other fields too such as autonomous autos, IoT, and drones.\nPark additionally laid out the Samsung’s plan of developing different sensors in his editorial including an image. The sensor can also be used in the analysis of skin cancer and also serving a function within the agricultural discipline. And that’s not it, the company is also working on different sensors that will register smell or tastes.\nThe latest launched smartphone, Samsung Galaxy Note 20 Ultra and Samsung Galaxy S20 Ultra both having 108-megapixel main sensor. The sensor used was ISOCELL HM2 with 0.7um pixel size and optical format 1/1.52″. Another 108MP image sensor is ISOCELL HM1 with 0.8um pixel size and optical format 1/1.33″.\n600-megapixel smartphone seems be a bit funny at present. However, it will solve many other problems and will be the biggest innovation if Samsung succeeds in this.\nWhat do you think about this?\nSource: Samsung, NDTV Gadgets","domain":"optical_engineering"}
{"url":"https://container.imm.cnr.it/publications/vertically-illuminated-resonant-cavity-enhanced-graphene-silicon-schottky","date":"2023-06-09T14:10:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656737.96/warc/CC-MAIN-20230609132648-20230609162648-00495.warc.gz","language_score":0.833634614944458,"token_count":212,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__258371993","lang":"en","text":"We report vertically illuminated, resonant cavity enhanced, graphene–Si Schottky photodetectors (PDs) operating at 1550 nm. These exploit internal photoemission at the graphene–Si interface. To obtain spectral selectivity and enhance responsivity, the PDs are integrated with an optical cavity, resulting in multiple reflections at resonance, and enhanced absorption in graphene. We get a wavelength-dependent photoresponse with external (internal) responsivity ∼20 mA/W (0.25A/W). The spectral selectivity may be further tuned by varying the cavity resonant wavelength. Our devices pave the way for developing high responsivity hybrid graphene–Si free-space illuminated PDs for optical communications, coherence optical tomography, and light-radars.\nAmerican Chemical Society\n28 Nov 2017\nVolume: 11 Issue: 11 Pages: 10955-10963","domain":"optical_engineering"}
{"url":"http://mlns.es.hokudai.ac.jp/member_en/goro-nishimura","date":"2020-05-28T16:37:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347399820.9/warc/CC-MAIN-20200528135528-20200528165528-00176.warc.gz","language_score":0.756178617477417,"token_count":691,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__144523174","lang":"en","text":"Research Institute for Electronic Science, N12-building, 4-105-2\nResearch Institute for Electronic Science, Hokkaido University, N20W10, Kita-ku, Sapporo 001-0020, Japan\nMy primary interest is in the study of optical methodology, biomedical optics, which is applicable to the biological and medical uses, and in the study of the physics on the biomedical optics. In particular, I am interested in the time-resolved spectroscopy and the correlation spectroscopy from the single-molecule level to the individual tissue level of small animals or human. I am currently focused on the tissue optics in a near-infrared region over 1 μm wavelength to obtain new information such as the water and structure of tissues. Since this region is essentially free or negligible from the heme absorption, this region could be used for a new optical window of the tissue, where the structure and dynamics are directly monitored. Further, the quantitative measurements of the extrinsic probe signals, such as fluorescence and scattering, are possible. I am expecting that this near-infrared wavelength region is key of yielding the detail information of complex hierarchical biological system.\n- Kamlesh Awasthi and Goro Nishimura, Modification of near-infrared cyanine dyes by serum albumin protein, Photochem. Photobiol. Sci. 10 (2011) 461-463.\n- G.Nishimura, Kamlesh Awasthi, Kitsakorn Locharoenrat, Shinpei Okawa and Yukio Yamada, Time-domain fluorescence diffuse optical tomography for living animals by total-light algorithm, SPIE Proc. 7896 (2011) 78962Q1-77962Q7.\n- Goro Nishimura, Changi Pack and Mamoru Tamura, Expansion of intensity correlation spectroscopy for lifetime measurements – application to intracellular oxygen dynamics measurements, Journal of Biomedical Optics 12 (2007) 020503.\n- G.Nishimura, C.Pack and M.Tamura, Phosphorescence decay time measurements using intensity correlation spectroscopy, Exp.Mol.Pathol., 82 (2007) 175-183.\n- G.Nishimura, I.Kida and M.Tamura, Characterization of optical parameters with a human forearm at the region from 1.15 to 1.52 μm using diffuse reflectance measurements, Phys.Med.Biol., 51 (2006) 2997-3011.\n- G.Nishimura and M.Tamura, Artefacts in the analysis of temporal response functions measured by photon counting, Phys.Med.Biol., 50 (2005) 1327-1342.\n- G.Nishimura and M.Tamura, Simple peak shift analysis of time-of-flight data with a slow instrumental response function, J.Biomed.Opt., 10 (2005) 014016.\n- G.Nishimura and M.Kinjo, Systematic error in fluorescence correlation measurements identified by a simple saturation model of fluorescence, Anal.Chem., 76 (2004) 1963-1970.\nPartial List of Professional Service\n- The Physical Society of Japan\n- The Biophysical Society of Japan\n- The Optical Society of Japan\n- Optical Society of America","domain":"optical_engineering"}
{"url":"https://pentzbooks.co.za/products/9780521642293","date":"2023-12-07T20:32:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00320.warc.gz","language_score":0.8920259475708008,"token_count":207,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__218838255","lang":"en","text":"Principles of Lasers and Optics by Chang, William S. C.\nCAMBRIDGE UNIVERSITY PRESS | 05 January 2012\nHardback | 260 pages\nPrinciples of Lasers and Optics, first published in 2005, describes both the fundamental principles of the laser and the propagation and application of laser radiation in bulk and guided-wave components. All solid state, gas and semiconductor lasers are analysed uniformly as macroscopic devices with susceptibility originated from quantum mechanical interactions to develop an overall understanding of the coherent nature of laser radiation. Analyses of the unique properties of coherent laser light in bulk and guided-wave components are presented together and derived from fundamental principles, to allow students to appreciate the differences and similarities. Topics covered include discussions on how laser radiation should be analysed, the macroscopic differences and similarities of various analyses, special techniques, types of lasers and setting up laser analyses. This text will be useful for first-year graduates in electrical engineering and physics and also as a reference book on analytical techniques.","domain":"optical_engineering"}
{"url":"https://www.faramoon.io/post/future-proofing-strate-titling","date":"2022-08-07T18:58:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570692.22/warc/CC-MAIN-20220807181008-20220807211008-00464.warc.gz","language_score":0.9456753134727478,"token_count":549,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__160208406","lang":"en","text":"Future Proofing Strata Titling\nAt present, Lidar (light detection and ranging) is playing a transformational role in surveying and mapping. Lidar could be identified as a remote sensing method that uses light in the form of a pulsed laser to measure distances to surfaces. Amongst the many benefits this technology offers, the ability to collect millions of data points fast and accurately, day or night, with minimum human resources and few control points, stands out as its most pioneering trait. Moreover, the additional data points collected that you may not need could be utilised in other applications as well. It has continuously proven over time as a productive technology within many industries, e.g., civil engineering, construction, transport, and mining.\nThe laser scanning technology could largely contribute efficiencies in strata titling. Currently, cadastral surveyors utilise distance laser measurers to verify strata plans against what is built. The handheld laser scanners effectively replace distance laser measurers and offer a better experience and output for titling purposes. The handheld scanners also provide the ease of collecting data by simply walking in and out of buildings. This allows laser scanners to have the ability to depict a complete picture which would yield more comprehensive space measurements. In addition, laser scanning would enable us to create 3D strata plans, and the inevitable adoption of digital twins and 3D cadastre by land registries has led to distance laser measures being ineffective.\nHowever, there is a twist in the scenario in terms of using the output of laser scanners. Laser scanning is considered to be very efficient, but there is a bottleneck. Converting the output of laser scanners; point clouds, to maps and models is often monotonous and time-consuming. It is estimated that the conversion process takes up to 16 times longer than regular scanning. Therefore surveyors are reluctant to use laser scanning in strata titling as the considerable conversion time outweighs the efficient data collection.\nWe at Faramoon, aim to eliminate this bottleneck with the development of Scan to BIM technology that would drastically reduce the conversion time. With this innovative technology, we possess the ability to transform point clouds to plans/3D models 100 times faster than manually modelling by an operator. Even better, it fits perfectly in line with strata plan requirements as it can generate 2D plans. Furthermore, architectural components such as walls would be extracted automatically, providing the opportunity to define title boundaries efficiently. Does all this sound interesting? Want to give it a go?\nWe offer a free trial to improve your current strata titling process or future proof it. Either way, we have a solution. Find yours now by contacting hello@faramoon","domain":"optical_engineering"}
{"url":"https://kesx.q7q.top/how-to-listen-to-audio-books-on-iphone-in-car.html","date":"2020-08-11T00:39:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738723.55/warc/CC-MAIN-20200810235513-20200811025513-00508.warc.gz","language_score":0.7831920385360718,"token_count":527,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__167862341","lang":"en","text":"Electronics manufacturer, SMARTEK Vision is launching six new models of its twentynine camera series with the latest SONY Pregius 9 Megapixel and 12 Megapixel CMOS Global Shutter image sensors. The new twentynine cameras feature the SONY IMX253, IMX255, IMX267 and IMX304 sensors, and combine high ...\nOmniVision Technologies, Inc. is a leading image sensor manufacturer of CMOS and BSI Sensors for the Automotive, Medical Imagining, Mobile Devices, Surveillance and Drone and laptop computer industries.\nProsilica GT1930 is a 2.35 Megapixel camera with a GigE Vision compliant Gigabit Ethernet port and Hirose I/O port. Prosilica GT1930 is offered in both monochrome and color models. This camera incorporates the high quality Sony IMX174 Exmor CMOS sensor with Pregius global shutter technology providing excellent monochrome and color image quality. 1/3” 1.3MP(1305*1049) SONY Exmor CMOS High rate, long-distance, real-time transmission Defog, D-WDR, 8X zoom Motion detection, privacy mask Smart IR control HD CVI/CVBS 960H Dual output Adopt new IR Array technology Power supply: DC12V WDR Outdoor Dome Camera (\nThe Exmor R™ CMOS sensor delivers superior performance in low-light situations where natural ambiance is desired, boasting roughly double the sensitivity of conventional CMOS sensors. PSD8802-A180 multi-sensor long range ir dome dahua 360 degree panoramic parking system fisheye ip camera, US $ 1,799 - 1,950 / Piece, Guangdong, China, Dahua, PSD8802-A180.Source from Shenzhen Guowei Security Electronic Co., Ltd. on Alibaba.com. Sensor Solutions develops and manufactures low-cost, high-volume visible and infrared imaging sensors for vision systems. These sensors are produced for a wide variety of commercial and military applications including security and surveillance, firefighting, driving aids, and weapons systems. > 1/3” 2.0 Megapixel SONY progressive scan Exmor CMOS image sensor > High-performance TI DaVinci series DSP > H.264 video compression and JPEG image capture > Max 25/[email protected] resolution > Dual encoding streams supported > Lens: 3.6mm > Max 32GB Micro SD card for local storage > Support DC12V power supply, PoE","domain":"optical_engineering"}
{"url":"https://wifinowglobal.com/organisation/sivers-semiconductors/","date":"2024-04-24T12:36:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819273.90/warc/CC-MAIN-20240424112049-20240424142049-00607.warc.gz","language_score":0.8980094194412231,"token_count":150,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__151908220","lang":"en","text":"Sivers Semiconductors AB is a leading and internationally recognized technology company that supplies ICs and integrated modules through its two business areas Wireless and Photonics. Wireless develops mmWave products for advanced 5G systems for data and telecommunications networks and satellite communication.\nThe portfolio includes RF transceivers, beamforming front end ICs, integrated mmwave antennas, repeaters, and software algorithms for optimum mmWave RF performance. Photonics develops and manufactures semiconductor based optical products for optical fiber networks, sensors and optical fiber communications (Li-Fi). The company is listed on Nasdaq Stockholm under SIVE. The head office is located in Kista, Sweden. For more information: http://www.sivers-semiconductors.com","domain":"optical_engineering"}
{"url":"https://techserviceco.com/2019/04/what-are-fiber-optics-learn-the-why-how-and-what-behind-this-incredible-technology/","date":"2024-04-20T13:57:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00140.warc.gz","language_score":0.9447615146636963,"token_count":617,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__58289203","lang":"en","text":"What do your cable TV, internet network and landline all have in common? They are all most likely supported by fiber optics. Fiber optics are strands of glass fibers that are designed to provide long-distance, high-performance data networking and telecommunications, but what exactly are they?\nWhat are fiber optics?\nFiber optics are pretty amazing. In fact, they are so amazing that the man who designed them received the Nobel Prize in Physics in 2009 for his work. Optical fibers are incredibly thin strands of glass or plastic. In fact, one optical fiber is one-tenth the width of a human hair. A fiber optic cable is made up of anywhere from two optical fiber strands up to several hundred, all housed inside a single cable.\nHow do fiber optics work?\nFiber optics use photons, or light particles, to transmit digital signals. The light is directed between the optical fibers through the use of shallow angles, which cause the photons to bounce back and forth down the cable. The core of the cable is the part that transmits the photons, while a second layer of glass, called the cladding, keeps the light from escaping. The capacities of fiber optic cables is staggering. When used for telephones, for example, each optical fiber can carry 25,000 calls, so a cable made of hundreds of strands has the capacity to carry millions of calls.\nHow are fiber optics made?\nOptical fibers are made through processes similar to those used to create other glass products. To create an optical fiber, a glass rod is heated to the melting point and then pulled into a thin fiber of about 125 micrometers. Each fiber is wound together with other fibers to create a thicker strand. The fibers are then encased within a protective polymer buffer or jacket.\nWhat are fiber optics used for?\nMost people are not aware of how universal fiber optics really are. In fact, any part of your life that includes a data network or telecommunications is most likely supported by fiber optics. As a company that offers fiber optic installation in MT, here are just a few of the ways we know our customers are using fiber optics every day:\n- Networks: Computers once used telephone lines to connect, but fiber optic cables carry far more data far more quickly compared to these older styles of electronic transmission.\n- Broadcasting: When there were fewer households with TV and only a handful of channels, electromagnetic waves were used to transmit signals. But to provide millions of homes with thousands of channels, TV providers switched to optic fibers to provide digital broadcasting.\n- Medicine: Fiber optics support medical devices that help doctors look inside human bodies without cutting them open.\n- Military: Fiber optic cables are inexpensive, high-capacity, lightweight and robust against attack, which makes them secure and perfect to support high-tech military operations.\nFiber optics support much if what we do in the modern world. If your business depends on fiber optics and you’re looking for fiber installation in MT, be sure to call on the experts at Tech Service Company!","domain":"optical_engineering"}
{"url":"http://www.huahailaser.com/enHtml/aboutus_6.html","date":"2014-07-22T09:17:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-23/segments/1405997857714.64/warc/CC-MAIN-20140722025737-00205-ip-10-33-131-23.ec2.internal.warc.gz","language_score":0.9359545111656189,"token_count":371,"dump":"CC-MAIN-2014-23","global_id":"webtext-fineweb__CC-MAIN-2014-23__0__79009360","lang":"en","text":"Wuhan Huahai Century Laser Co., Ltd is a high-tech enterprise engaging in the development and manufacture of gas laser, solid laser, complete set of laser processing equipment as well as craft processing and sale. Located in the East Lake Hi-tech Industrial Park, Huahai is a key enterprise of Wuhan Optics Valley of China.\nWith a group of high quality technical experts and personnel and backed by the environment of the favorable policies and many universities in Wuhan , Huahai explores actively, and is keen on forging ahead and constant innovation. It has formed the corporate concept of “Technology is source; Quality is life”, the management concept of “Win market share ahead of others via technology; Reward customers with first-rate service”, and the HR concept of “careers open to talents; fair competition”.\nIn the increasingly fierce market competition, the company has, on the basis of fully absorbing advanced laser technology in the field of international laser, developed a series laser products of laser engraving machines, cutting machines, seal engraving machines, engraving machines for crafts etc, which are mainly of gas laser and applied extensively in the areas of seals, advertising, engraving , shoe patterns, clothing, industry, and craft gifts etc. With high-quality products, complete after-sale services, and a fine attitude in attending to customers, the company has won customers' confidence and successfully promoted its products all over China .\nToday's Huahai is a new star of Optics Valley which combines high-tech industry with Standardized Management; Tomorrow's Huahai will rise in the main battlefield of civil laser with a brand-new face. In face of the dawn of the new Millennium, Huahai will create brilliance together with you!","domain":"optical_engineering"}
{"url":"http://dryeyetest.com/aboutdet.html","date":"2023-03-25T14:06:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945333.53/warc/CC-MAIN-20230325130029-20230325160029-00256.warc.gz","language_score":0.9484455585479736,"token_count":245,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__233249149","lang":"en","text":"Accurate and Easy to Use\nAmcon Dry Eye Test Strips are designed to be not only accurate but easy to use. No shaking is required since the strip is designed to hold only 1 µL of fluid. The same small amount of fluorescein is applied to the eye with each strip. DET proves to be very user-friendly.\nInvented by an Optometrist\nThe Dry Eye Test was invented by Dr. Donald R. Korb, a Boston optometrist , who is internationally recognized for his invention of contact lens designs.\nDr. Korb's name is synonymous with two of these designs: the lid attachment method of fitting rigid lenses (the Korb technique) and the first membrane soft extended wear contact lens, the CSI lens. He is currently the President and Technical Director for Ocular Research of Boston (ORB), a company he founded in 1987, whose primary pursuit is the development of products for the treatment of dry eye and dry skin.\nDr. Korb has a long history of discoveries documented by 24 US patents in the areas of ocular diagnostic equipment, contact lens polymers, contact lens design, and ocular drugs and formulations.","domain":"optical_engineering"}
{"url":"http://sindaoptic.sell.curiousexpeditions.org/pz5267e4d-24-port-odf-fiber-optic-patch-panel.html","date":"2017-06-28T15:46:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128323711.85/warc/CC-MAIN-20170628153051-20170628173051-00124.warc.gz","language_score":0.7955243587493896,"token_count":558,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__180026345","lang":"en","text":"SC Fiber Optic Patch Panel , Duplex 24 port Patch Panel Rack\nType: Rack Mounted\nConnctor Type: SC\nPorts option: 12 port\nPort Type : Duplex\nBrand Name: SINDA\nMaterial: Galvanized steel sheet or Cold rolled steel sheet\nCertifications: ISO9001 & ROHS\nApplication: Optical distribution frame( odf)\nSuitable for SC,FC,ST,LC adaptor,and duplex or simplex is\nSmart design to supply firm protect for optic cable terminal\nconnection and optic fiber adaptor installation.\n19-inch standard size .fit for 19-inch rack. 23-inch size is\navailable on request.\nStandard size is 1U,2U,or 4U are available on request\n12,24,48,72,96 ports optical.\nProvide termination, protection, connection,management of fiber\nSuitable for fusion splicing, direct termination and pre-terminated\n1RU, 2RU, 3RU 4U and High Density versions optional\nSuitable for 19”; 21” and 23” racks\nFull assembly (loaded) or empty panel optional\nMax Capacity (cores)\nThe body is made from cold rolled steel sheet,\nand we could stall adaptors for you.\nOur products fiber optic cable, fiber optic patch cord,fiber optic\nadapter, fiber optic connector, fiber optic PLC Splitter, Fiber\noptic splice closure, Fiber optic patch panel, fiber optic media\nconverter, fiber optic odf, fiber optic test equipment conform to\nstandard of posts and telecommunications, as well as international\nIEC,BELLCORE standard , which are widely used on\ntelecommunications, posts ,Electrical and Aviation. For those who\nhas special requirement, we can also customerize the feasible\nproposal. We are making our efforts to be the industrial production\nchain base of fiber optic connector production, making our name\nwell known all over the world . We always insists on the policy of\ncustomer first and quality first, holding the quality conception\nthrough the production process, stage by stage to control quality\nso as to consolidate our base.\nAll our products have been exported to many foreign countries like\nIndia, UAE, Germany, France, USA, Korea, Russia etc. The products\nare widely used in telecom, broadcast & television, power\nengineering, as well as some other industries . Besides,we have\nestablished close business relationship with the prestigious of\ntelecommunication companies at home and abroad.\nWe wish to create better future of optical communication industry\njointly with both new and existing customers.","domain":"optical_engineering"}
{"url":"https://shop.jbeyecare.com/products/bondeye-no-fog-wipes-30","date":"2023-06-05T16:18:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652149.61/warc/CC-MAIN-20230605153700-20230605183700-00681.warc.gz","language_score":0.8406602740287781,"token_count":172,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__42855099","lang":"en","text":"Fog and mist free lens wipes. Keep lenses clear while wearing face mask or behind PPE.\n- Anti-static and anti-fog/mist wipes.\n- Designed for daily use.\n- Convenient and portable.\n- Effective for 24 hours.\n- Suitable for all lens types.\n- Best performance when applied to clean lenses. (NB Zeiss lens cleaning wipes available here)\n- Rub lens in circular motion. (NB only use wipe when it is moist)\n- Residue (trace alcohol) designed to remain on lens during effective period.\n- Presentation: 1 box of 30 wipes.\n- Free Delivery available (NB we have to remove box and place wipes in an envelope)\n- Keep out of reach of children.\n- Not for use on contact lenses.","domain":"optical_engineering"}
{"url":"https://fatigue4light.eu/embedding-fiber-optical-sensors-in-frp-hybrid-materials/","date":"2024-02-22T03:13:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473690.28/warc/CC-MAIN-20240222030017-20240222060017-00169.warc.gz","language_score":0.8448631763458252,"token_count":289,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__95203269","lang":"en","text":"Embedding Fiber Optical Sensors in FRP-Hybrid Materials\nProceedings of the International Conference on Composite Materials (ICCM2023)\nby J. Pettersson; C. Sterner; H. Dykhoff (RISE)\nThe presented work includes development and verification of techniques for embedding fiber- optical sensors in Fiber Reinforced Polymers (FRP) and Aluminum hybrid materials for Structural Health Monitoring (SHM) purposes. The fiber-optical sensors both survive the manufacturing process of the FRP-Hybrid material and achieve sufficiently strong bonding to the material matrix. Mechanical tests have been performed to characterize the performance of embedded fiber-optical sensors for obtaining strain data under both static- and cyclic loading. Further, the fiber-optically read strain data is comparable with the strain readings from surface-mounted extensometers and strain gauges. Embedded fiber-optical sensors could monitor up to 1,5 – 2% strain in quasi-static tensile tests. During cyclic tests at low load, within the linear elastic region, the embedded sensors provided strain data for the entire testing cycle (18 000 cycles). At high cyclic loading, above the linear elastic region (300 MPa, 5 Hz), the embedded sensors provided strain data for 5000 cycles. This work has shown that embedded fiber-optical sensors can be used for Structural Health Monitoring of mechanical components.","domain":"optical_engineering"}
{"url":"http://bugbig.com/tag/digital-camera","date":"2013-05-18T12:43:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696382396/warc/CC-MAIN-20130516092622-00002-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.894248902797699,"token_count":1101,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__68348769","lang":"en","text":"Latest Blog Entries\nPanasonic – Pocket sized digital camera “DMC-LF1″ – 7.1X Optical Zoom, F2.0 LEICA DC VARIO-SUMMICRON lens, finder built-in\nPosted On 14 May 2013 By Stephen. Under: Uncategorized.\nPanasonic announced that they will release pocket sized digital camera “DMC-LF1″ (102.5 x 62.1 x 27.9mm, 170g) with 7.1X optical zoom. It has a finder and F2.0 LEICA DC VARIO-SUMMICRON lens and features a 1/1.7 inch Mos sensor, 3 inch LCD screen (920,000 dot), and Wi-Fi/NEC functions. Color: black\nPosted On 23 Apr 2013 By Stephen. Under: Uncategorized.\nThe new CyberShot “DSC-HX50V” from Sony will be out on May 17. It is the lightest and smallest digital camera with 30X optical zoom lens. 20.4 million effective pixels, Exmor R CMOS Sensor is built-in. Compared with existing models, during telephoto mode, the speed of the AF system is 2.3 times faster and the correction [...]\nPosted On 16 Apr 2013 By Stephen. Under: Uncategorized.\nPENTAX RICOH IMAGING COMPANY, LTD. has announced that they will release their new compact digital camera “GR” in late May. It features the new “GR LENS 18.3mm F2.8″ lens with 18.3mm focal length. Low-pass filter-less, APS-C CMOS sensor (16.2 million pixel) is built-in. The new “GRENGINE” image processor brings ISO 25600. High AF speed of [...]\nCanon – New “Bay Blue” EOS M – color created by famous Japanese art director will be added to Canon’s popular single-lens reflex mirrorless camera series “EOS M”\nPosted On 11 Apr 2013 By Stephen. Under: Uncategorized.\nCanon’s single-lens reflex mirrorless camera series “EOS M” that won a 2012 Good Design Award will add its new color “Bay Blue” on April 25. The color was created by popular Japanese art director Chie Morimoto under the theme of “Travel”. We wrote about the Canon single-lens reflex mirrorless camera EOS M last year. Chie [...]\nPENTAX RICOH – “PENTAX MX-1″ – Classic retro-design compact digital camera with large-aperture optical 4X zoom lens\nPosted On 08 Apr 2013 By Stephen. Under: Uncategorized.\nPENTAX RICOH IMAGING COMPANY, LTD. is releasing a new compact digital camera with a clean retro design – PENTAX MX-1 – on May 3. It’s a digital camera with an optical 4X zoom lens featuring a large maximum aperture of F1.8 to F2.5 and 28mm wide-angle coverage (in the 35mm format) and works well in [...]\nPosted On 03 Feb 2013 By Stephen. Under: Uncategorized.\nCanon has introduced another new, compact and powerful camera – the new PowerShot N camera, available in white or black. It has an entirely new sleek and compact design, and a new 2.8-inch tilt-type touch screen offers photographic flexibility, allowing users to shoot diagonally, horizontally, and from high or low angles. It features an 8x [...]\nPosted On 07 Jan 2013 By Kevin Wong. Under: Uncategorized.\nJust as Fujifilm is getting under way with its CES 2013 press conference, the folks over at FujiRumors found some footage of Fujifilm's new digital split image display from the newly announced X100s. Earlier this week, the company announced this new ...\nPosted On 24 Oct 2012 By Daimaou - G.G-B. Under: Uncategorized.\nNikon is going full steam ahead in the Mirrorless market and just a year after its first Nikon 1 V1, the Japanese company announced today the new and improved 1 V2! With a design drastically different from the 1 V1, the V2 comes however with a full set of improvements including but not only a [...]\nPosted On 23 Oct 2012 By Michael Gorman. Under: Uncategorized.\nIt was just over a year ago when Nikon first dipped its toe into mirrorless waters with its first two 1 System cameras, the V1 and J1. Now, the company has released the V1's successor, the aptly named V2. Like its elders, the V2 has a 1200fps slo-mo ...\nPosted On 16 Oct 2012 By Michael Gorman. Under: Uncategorized.\nGoPro just revealed its new flagship action camcorder, the Hero3, and we managed to get our mitts on one this evening. First things first, the Hero3 is tiny, particularly when considering that it shoots 4K video (albeit at a paltry 12fps), a resoluti...","domain":"optical_engineering"}
{"url":"https://vk4zxi.blogspot.com/2014/12/digital-video-processing-with-hd-cctv.html","date":"2019-06-17T22:38:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998581.65/warc/CC-MAIN-20190617223249-20190618005249-00528.warc.gz","language_score":0.9426268935203552,"token_count":842,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__31971969","lang":"en","text":"Digital Video Processing with HD CCTV: Noise reduction\nDigital Video Processing with HD CCTV: Noise reductionIn this post I examine some of the sophisticated technology used in digital high definition CCTV cameras, including a the powerful underlying SOC electronics, and the similarities with audio noise reduction in audio, as used in amateur radio.\nNoise reduction in HD CCTV\nI read very widely and like to see or create connections between apparently disparate ideas and technologies. From an earlier post on working with a Pentax lens I have, I read about the image processing abilities of some Pentax lenses.\nPentax/Richo have an award-winning image processing system, PENTAX Atmospheric Interference Reduction (PAIR). http://www.ricoh.com/fa_security/security/pair/ The results are amazing:\nFrom a first reading, the processing seems to be done in the lens itself, something that had me mystified as to how such spectacular results are possible with just optics. However, on closer reading, the output of the camera is fed into the lens and the main output is from the lens. As such, the lens has on-board processing of the captured images, making such image processing more plausible, compared to doing it with optics as I first thought. The connection are shown:\nThe lenses are expensive, for CCTV lenses, at about $10,000. Having realised the PAIR system uses the raw images from the camera, then it is easier to see how it might work; it is very difficult to find technical information on the PAIR system, secrecy can be better than patents for protecting intellectual property, something I have experienced myself during my career with technology transfer.\nOn the other hand, Texas Instruments, who make a very sophisticated system on a chip (SOC), video processing system (VSP), has an interest in telling the world of its possibilities, in order to sell more chips; even a Wiki: http://processors.wiki.ti.com/index.php/Category:DaVinci.\nThe TI Da Vinci SOC is essentially a video camera on a chip plus powerful VSP. The block diagram of a \"reference design\" networked camera: http://www.ti.com/lit/wp/spry224/spry224.pdf\nWith this SOC, it is possible to produce very powerful CCTV cameras at low cost. I purchased such a camera, with a 2K UHD sensor, but no lens, for about $170 from http://www.aliexpress.com/. It was purchased to investigate DATV over networks and UHD DATV, subjects of earlier posts. However, with the DSP, there are other possibilities. Taking the lid off the camera revealed a very simple construction. The main SOC is obscured by a heatsink, while the other chips were memory or auxiliary.\nLow-light noise is a bug-bear of CCTV security systems. Using the TI SOC, noise reduction is possible: http://www.ti.com/lit/wp/spry224/spry224.pdf (Nov 2012, so close to state of the art)\nLooks familiar to Pentax PAIR technology? TI's solution is to put the DSP in the camera and use conventional lenses, whereas Pentax's solution is to put the DSP in the lens. TI go on to discuss the algorithms.\nAmateurs are fairly familiar with noise, with much of it being random, likewise with video. TI identify two techniques to remove noise: spatial and temporal filtering (see pdf for details). The essential approach is to compare a number of frames (typically collecting 25 or 30 frames per second), with little motion. What is in one frame, but not another is usually noise and can be removed. This is very similar to noise-cancelling with audio and radio where two different sources (two antenna, two microphones) are used and the differences discarded as noise.\nTemporal filtering is more complex as it is used with moving images and needs to differentiate noise between frames as well as motion between frames; a two level system with different time regimes.","domain":"optical_engineering"}
{"url":"http://www.rfqsoftware.com/__trashed-661.html","date":"2019-09-23T09:16:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514576345.90/warc/CC-MAIN-20190923084859-20190923110859-00158.warc.gz","language_score":0.9402427673339844,"token_count":767,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__58653909","lang":"en","text":"My well being insurance must cover me when I need to have it. Close loopholes that can leave me huge surprise medical bills. Prime high quality optics, dependability, and convenience of use are just some of the reasons that buyers choose Canon digital cameras. Our favourite digital cameras are from Sony and Nikon, nevertheless you are presenting some really inexpensive options here. Canon cameras are divided into two broad product lines, Canon EOS for their SLR models, and Canon PowerShot for their point & shoot designs. Digital cameras have replaced Film cameras and Digital SLR Cameras have replaced Film SLR Cameras. And but a year later, Canon released yet another iteration of its Canon EOS Rebel series.\nWhilst the G5X does not bring several new performance features to the table, it continues where the G7X left off and should prove to satisfy a lot of seasoned photographers looking for a fixed-lens compact camera. Let’s take a rapid look at how the line has evolved and and how far Canon’s entry level cameras have come. Only the Canon t4i involved a main upgrade with a new image processor, but there isn’t much left to increase.\nCanon introduced the Rebel line of SLR digital cameras in 2003, another renowned line of cameras. The Canon t2i supplied a handful of improvements more than the original Canon EOS Rebel camera. The lengthy-awaited Canon 70D comes packed with a groundbreaking new technology – Canon’s Dual Pixel CMOS AF method – that provides on-chip phase detection autofocus at every single single pixel. If you’re looking for a low barrier of entry into the DSLR planet, the Canon Rebel T5 is a great place to commence. I ended up buying a Sony so that I could use the old Minolta film lenses with it. I’ve been quite happy, at least until I had to send it off to the factory for repair. Mr. B wants to buy a Nikon DLSR and use the lenses from the F3 with it (if it has the bayonet mount). Canon at the moment makes digital cameras at its Oita Factory in Japan for each the SLR and customer markets. Subsequent I focused on newer digital SLR cameras, created inside the previous two years.\nDefinitely, for the easiest operation a Smart Auto or Intelligent Auto Mode is good as it enables the camera to choose the appropriate settings with no the photographer obtaining to figure it all out. The final non-EOS based SLR camera made by Canon, the Canon T90 of 1986, is widely regarded as the template for the EOS line of camera bodies, even though the T90 employed the older FD lens-mount common. Using just the camera and pop-up flash, you could remotely trigger a whole set of flashes to take intricately lit portraits and images. Optical zoom is superior in high quality, but digital zoom can be beneficial with no degrading image top quality in smaller print sizes (4×6). Canon’s initial digital compact camera was the RC-701, sold for the initial time in July 1986.\nSeveral point and shoot cameras give automated controls to customers that aid adjust exposure, shutter speed, and/or white balance to capture greater shots despite alterations in lighting and a lot more difficult conditions. PowerShot fixed lens cameras that are in the $500-$1,000 range are higher-finish models that produce outstanding image high quality and quickly performance levels. I have an old film camera that possibly expense a couple hundred dollars 20 years ago, but unfortunately the lenses are not compatible with new digital SLR cameras. With a 24.two megapixels sensor, the Canon T6s produces outstanding pictures, with tons of detail and precise colors.","domain":"optical_engineering"}
{"url":"http://www.musicrush.com/htpow/blog/7038/china-industrial-laser-challenges","date":"2020-05-26T19:34:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347391309.4/warc/CC-MAIN-20200526191453-20200526221453-00394.warc.gz","language_score":0.9388309121131897,"token_count":876,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__118529997","lang":"en","text":"China Industrial Laser Challenges\nIn the view of Western industrial laser processing system manufacturers, China is the largest single market for its products and may become an important competitor in its own market in the near future.\nIn 2016, China's industrial blue laser materials processing equipment market was about $ 3.8 billion, with an average annual compound growth rate (CAGR) of 12.51% over the past five years. The growth rate in 2017 is expected to be about 22%, the value will reach 4.6 billion US dollars. From this point of view, the global market for materials processing in 2016, the total market volume of about 12.6 billion US dollars, while the Chinese market reached the global laser materials processing equipment system revenue of one-third. Global laser materials processing system popular markets include smart phone manufacturing, aluminum deep processing of metal sheet cutting, electric vehicle batteries and display and so on.\nIn 2016, China's industrial laser system imports amounted to 640 million US dollars, compared with 2014 up to nearly 1 billion US dollars of imports fell by about 30%. The downward trend in this import ratio is expected to continue to decline by 18% in 2017. The figure illustrates the relationship between China's laser system exports and imports from 2010 to 2017. By the end of 2017, China's industrial laser system exports may reach an average compound annual growth rate of 21.9%, and since 2010, China's industrial laser pointer system imports showed a -3.4% annual compound growth rate.\nFrom another point of view, China's materials processing laser system suppliers in the past five years, the average annual compound revenue growth rate of 16%. According to the news, these enterprises have about 150 enterprises in the annual revenue of more than 5 million US dollars. These domestic suppliers since 2010, the average annual compound growth rate of 22%, estimated in 2017 will reach 480 million US dollars. Most of these systems are exported to South Korea, Taiwan and Vietnam, as well as India and Malaysia and other manufacturing industries rapid development of the market.\nChina's laser materials processing system exported to the United States and Europe, is currently in its infancy, because exports to these markets also need to solve some security and reliable standards and other issues. This is particularly difficult in Western countries, Western countries to respond to fast service and accelerate the replacement of parts supply requirements have been formed. Chinese system vendors are beginning to realize that the primary focus of US and European buyers is the reliability of the equipment, not the price of the system.\nThe use of fiber lasers as a source of light in many industrial green laser systems on the market helps to ease service and reliability issues. Fiber lasers are energy-efficient, easy-to-replace and easy-to-maintain devices that are cost-effective in manufacturing environments. Long-term reliability is the main driving force for upgrading fiber laser mounting to one-third of all industrial laser sales.\nThe Chinese government also hopes to make breakthroughs in intelligent manufacturing, improve supply quality and efficiency, stimulate actual demand, strengthen new growth momentum, focus on manufacturing innovation and information and manufacturing technology integration, enhance information technology and high-end equipment, promote robotics and intelligent systems The development of all this directly or indirectly related to industrial laser technology. If these goals are achieved, it is expected to enhance the competitiveness of Chinese enterprises in the global market.\nEven with the government's encouragement and support, China's laser system manufacturers are facing some obstacles, it is difficult to achieve more than 5% of the average annual compound growth rate. First, the selling price advantage is challenged. Faced with strict international standards of kilowatt-class cutting welding system competition, and get the appropriate after-sales service support, the Chinese system manufacturers may no longer have the existing sales price advantage. In addition, improved industrial red laser light technology (UV lasers, ultrafast lasers and high power / high beam quality diode lasers) from other global suppliers have entered the international market and have been far ahead of Chinese companies.\nHowever, leading Chinese manufacturers are beginning to realize changes in the market environment. With the R & D spending plan, Chinese manufacturers can take advantage of world-class equipment to enter the market that is profitable and difficult to access at present, so as to achieve the goal of providing high value-added laser equipment suppliers by the Chinese government.","domain":"optical_engineering"}
{"url":"http://tjtianhe.cn/qptu/1156.iunm","date":"2019-10-23T20:51:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987836295.98/warc/CC-MAIN-20191023201520-20191023225020-00389.warc.gz","language_score":0.7197131514549255,"token_count":186,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__30477799","lang":"en","text":"Research on the Method of Traffic Flow Detection at Traffic Junction Based on Halcon\n(Xi’an Highway ResearchInstitute, Xi’an 710065,China)\nAbstract: In this paper, a video image processing detection algorithm at traffic intersection was designed using Halcon computer vision algorithm library in order to provide a solution for traffic flow detection in intelligent transportation. Application of the moving target detection method based on hybrid Gaussian background model was studied, and the basic algorithm principle was analyzed to select key functions in Halcon for the detection algorithm in HDevelop development environment. In the verification stage, continuous 500 frames of images were processed and analyzed. The result showed that this algorithm could capture moving vehicle targets in the traffic road quite effectively at an average processing speed of 5.8ms per frame, which could meet the real-time requirements.\nkey words: intelligent transportation; traffic flow detection; machine vision; Halcon","domain":"optical_engineering"}
{"url":"https://www.taurus-g3c.com/store/viridian-c5l-r-red-laser-sight-tactical-light/","date":"2022-11-27T06:32:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710192.90/warc/CC-MAIN-20221127041342-20221127071342-00263.warc.gz","language_score":0.8502621650695801,"token_count":320,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__194678937","lang":"en","text":"The Viridian C5L-R red laser sight + tactical light is so tiny, it tucks neatly between trigger guard and muzzle, with no overhang, and will work with virtually any railed gun. This C5L-R features a bright red laser with multiple modes of operation and easy windage/elevation adjustment.\n- Range: 25 yards in daylight/1 mile at night\n- Lumen: 100 lumens constant and 140 lumens strobe\n- Laser: 5 mW/635-650 nm\n- Battery Life: 20+ hours constant, 35+ hours strobing, 75 minutes laser + light\n- Adjustable: Windage/elevation\n- Activation: Automatic activation with INSTANT-ON®/user defined operating modes\n- 7 Year limited warranty\nViridian’s C5L-R sighting system is equipped with INSTANT-ON® activation. When paired with a TacLoc holster (sold separately), you can ignite your red laser and tactical light instantly when you draw your weapon. When you draw it’s on.\nThe C5L-R features a 100 lumen tactical light with CREE LED in constant and strobe modes. It comes standard with RADIANCE® taclight technology, which expands light into a wider beam, revealing over twice the horizontal area of conventional tactical lights. With no wasted light above or below your target area, you get a better picture, faster discovery, smoother tracking and more positive targeting than any other weapon-mounted tool.","domain":"optical_engineering"}
{"url":"https://kornia.readthedocs.io/en/stable/pinhole.html","date":"2019-08-25T09:17:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027323246.35/warc/CC-MAIN-20190825084751-20190825110751-00397.warc.gz","language_score":0.8520975112915039,"token_count":362,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__181758838","lang":"en","text":"In this module we have all the functions and data structures needed to describe the projection of a 3D scene space onto a 2D image plane.\nIn computer vision, we can map between the 3D world and a 2D image using projective geometry. The module implements the simplest camera model, the Pinhole Camera, which is the most basic model for general projective cameras from the finite cameras group.\nThe Pinhole Camera model is shown in the following figure:\nUsing this model, a scene view can be formed by projecting 3D points into the image plane using a perspective transformation.\n- \\(M'\\) is a 3D point in space with coordinates \\([X,Y,Z]^T\\) expressed in a Euclidean coordinate system.\n- \\(m'\\) is the projection of the 3D point \\(M'\\) onto the image plane with coordinates \\([u,v]^T\\) expressed in pixel units.\n- \\(K\\) is the camera calibration matrix, also refered as the instrinsics parameters matrix.\n- \\(C\\) is the principal point offset with coordinates \\([u_0, v_0]^T\\) at the origin in the image plane.\n- \\(fx, fy\\) are the focal lengths expressed in pixel units.\nThe camera rotation and translation are expressed in terms of Euclidean coordinate frame, also known as the world coordinates system. This terms are usually expressed by the joint rotation-translation matrix \\([R|t]\\), or also called as the extrinsics parameters matrix. It is used to describe the camera pose around a static scene and translates the coordinates of a 3D point \\((X,Y,Z)\\) to a coordinate sytstem respect to the camera.","domain":"optical_engineering"}
{"url":"http://qigolaser.com/used_laser_cutting_machine/","date":"2020-08-04T11:56:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735867.93/warc/CC-MAIN-20200804102630-20200804132630-00259.warc.gz","language_score":0.9325598478317261,"token_count":352,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__194718842","lang":"en","text":"We are not only producing the all-new laser cutting machine but also the used laser cutting equipment. When we doing customer investment and cost analysis. the premise is that our client who are going to purchase laser cutting machine will be deal with outsourcing work from others.we need to show you how we charge for fabricating from end-users.but it should be more cheaper if you buy a used laser cutting machine,\nif you wan to buy buy used laser cutting machine. Is the used laser cutting machine worth buying? The buyer of used laser cutting machine is dealers of laser cutting machine. The advantage of used laser cutting machine is that it is cheap, so it can definitely make a large profit, but you may need a professional purchasing manager to pick up the right machine.\nThe average lifetime of laser cutting machine is 80,000 hours. After 40,000 hours, it is basically dead. The average power attenuation of IPG and N-LIGHT laser transmitter is 3% every 3000 hours, and Reco is 4%, chuangxin is 5%. if the machine Working 10 hours a day, 3000 hours a year, you can find 30% power attenuation in 10 years,for example. the original power is 1000Watts.But now only 600 watts left after 10 years.\nthe machine may be sold for various reasons and cannot be compared with new machines in terms of performance. At the same time, used laser cutting machines often lose the manufacturer's warranty. Some cutting machines may have product defects, because they are used, do you have any worry to use it?can you confirm that the laser cutting machine equipment can not create value for it,in a words,these risks need to be undertaken by you.","domain":"optical_engineering"}
{"url":"http://collinawcw000.fitnell.com/5094600/eye-surgical-treatment","date":"2018-06-19T04:15:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267861899.65/warc/CC-MAIN-20180619041206-20180619061206-00560.warc.gz","language_score":0.9540646076202393,"token_count":1322,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__201662315","lang":"en","text":"Eye Surgical procedure has become a mainstream technique of vision adjustment, as well as this short article will certainly clarify the benefits and also disadvantages of three different methods being provided to the medical consumer.\nLasik Eye Surgical treatment\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis and is an eye surgical system which completely deals with vision by eliminating a slim layer of the cornea. This treatment functions best on individuals with moderate to high levels of myopia (nearsightedness), low to modest levels of hyperopia (farsightedness) as well as astigmatism associated with nearsightedness, as well as who have thick corneas. It is the most popular surgical vision correction approach.\nIndividuals with normal eye view see items plainly because images are brought right into a right focal point by the cornea and also lens of the eye. Ideally, the cornea's curvature is uniformly matched to its length in a regular eye. People with astigmatism, myopia or hyperopia have off-and-on shaped corneas, so the things seen are not focused properly. LASIK adjustments corneal shape by exact elimination of corneal tissue, and also by doing so fixes the eyes' concentrating power.\nThere are, nevertheless, risks to LASIK eye surgical treatment.\nThere is a remote chance of complete loss of vision. If this takes place, it is typically due to the fact that the client had a pre-existing problem which should have precluded the surgical treatment in the first place, such as pregnancy, cataracts, joint inflammation, diabetes, glaucoma, or lupus. People with huge students are likewise bad prospects for LASIK. Dry eye disorder will be exacerbated by this procedure.\nA couple of clients whine that they permanently see \"ghost\" pictures, have obscured vision, diminished contrast and also negative night vision. When LASIK was first presented, 5% of people had post-operative grievances; however, refinements in the treatment have actually triggered this rate to go down to much less than 1% if LASIK is performed by competent experts and patients are appropriately screened prior to surgical procedure. If troubles do happen, they could often be resoved by a retreatment.\nFDA has accepted LASIK laser eye surgical treatment since 1998. While there are a lot of satisfied clients, there are however no long-term researches concerning its results. Understand the limitations and the threats of LASIK eye surgery before you sigh for the treatment.\nThough less well known, these small implants could boost vision in individuals with moderate to modest myopia without the risk of permanent eye damages inherent in the cells removal strategy of LASIK. Get More Information Intacs are semi-circular disks dental implanted in the cornea which stretch it to assume a flatter form. Though somewhat less precise compared to LASIK, they are removeable and also changeable, so if the client has an unforeseen over- or under-correction, the implant could be removed and also another of a different size placed to acquire the desired adjustment. The implants are located at the edge of the cornea, so the main aesthetic location is totally intact and also intact, and also the strength of the cornea is undiminished, making it a better option for pilots and also those that engage in get in touch with sporting activities where eye injury is an opportunity.\nIntacs are unsuitable for serious nearsightedness and more than small astigmatism (1.00 diopters), as the cornea can only be stretched so far. If the Intacs are gotten rid of, vision go back to its preoperative degree. Besides vision modification, Intacs are additionally utilized to treat keratoconus.\nIntacs are FDA authorized and also One Decade researches have actually revealed no major problems with Intacs and very few individual problems; nonetheless, due to the fact that the treatment takes more training compared to LASIK, there are less eye surgery clinics offering it. Nonetheless, the Intacs website gives a checklist of practitioners in each state, too a couple of in Canada, Europe as well as Mexico.\nSince many people do not helpful site want to risk LASIK and also Intacs could not assist those with severe vision problems, intraocular lens implants (IOL) are a brand-new choice authorized by the FDA in 2004 to correct modest to extreme nearsightedness. The Artisan lens, manufactured by Ophtec, resembles the kind of lens implant made use of to bring back vision complying with cataract eye surgery.\nThe brand-new IOL, called the Artisan, is planned for only people who have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not replace the all-natural lens, but is put in front of it. The major issue found with the dental implant was the steady loss of endothelial cells in the corneas of people who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are essential in maintaining the cornea clear. A three-year study revealed a consistent stable loss of endothelial cells of 1.8 percent a year. At this point, no person could predict whether this loss will continue at the same rate forever, and even its impact on corneal function.\nTo minimize long-lasting results of the gadget on the corneal endothelium, the FDA is calling for that the brand-new lenses be labelled to specify that they ought to only be dental implanted in individuals whose corneal endothelial cells are thick adequate to withstand minor cell loss.\nMuch more significant problems were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up survey of its dental implant clients to better analyze the post-surgical incidence of cataract growth, retinal detachment and also various other ocular diseases.\nThe Artisan lens is intended to be a long-term implant.Though it could be gotten rid of surgically, vision may not constantly go back to what it was before obtaining the lens. Because it does not affect astigmatism, clients with this issue may still call for glasses.","domain":"optical_engineering"}
{"url":"http://rotemcrystals.com/qa/","date":"2022-11-26T18:34:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446708046.99/warc/CC-MAIN-20221126180719-20221126210719-00350.warc.gz","language_score":0.9125940203666687,"token_count":361,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__2585896","lang":"en","text":"AT ROTEM QUALITY IS THE FOUNDATION ON WHICH WE OPERATE.\nSince its creation, Rotem has been constantly striving to improve and maintain the highest quality and reliability in the manufacture of sapphire domes and windows. Rotem has extensive metrology capabilities to meet the most stringent customer demands, offering continuous quality and consistent analysis of form, surface roughness, optical performance giving full product characterization of the products we manufacture. The sapphire products production and facility of Rotem is ISO-9001 certified since 1994, and AS9100D certified since 2020. Rotem has invested in metrology tools, equipment, and facilities to support all of our manufacturing processes and products. Specific capabilities: Spectrophotometer & Spectrophotometer FTIR for measuring sapphire transmission from 300 to 6000nm. Zygo ZeGage pro – Optical profile non-contact surface measurement, with the capability to measure sapphire surface roughness down to the angstrom level. Zygo Verifire – A non-contact Laser Interferometer for measuring sapphire optical surface form tolerances; Flatness, Transmitted Wavefront Error (TWE), Power and Irregularity into the fractional wave level. Numerous optical comparators, high power imaging and microscope systems for physical measurement. We constantly strive to provide products and services to meet or exceed the requirements and expectations of our customers. We actively pursue ever-improving quality through programs that enable the supply of products right the first time and every time. Rigorous controls to meet all customer inspection and Certification, CofC, and other requirements. Rotem not only fully controls the process from raw material through final delivery, we fully support all deliveries with inspection and certification for full compliance.","domain":"optical_engineering"}
{"url":"http://www.phys.virginia.edu/Announcements/News/ViewPost.asp?UUID=f62aa7e4-a794-11e7-a7fc-d067e5f349a5","date":"2023-12-08T16:53:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100762.64/warc/CC-MAIN-20231208144732-20231208174732-00480.warc.gz","language_score":0.8823537230491638,"token_count":418,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__111527199","lang":"en","text":"Probing Matter with Attosecond Photo-Electron Wavepackets\nElectronic processes and electron-driven reactions in atoms, molecules and condensed systems can proceed very rapidly, with relevant time-scales in the attosecond (1 attosecond=10-18 s) regime. When activated by the photoabsorption of extreme-ultra-violet attosecond laser pulses, the electron dynamics can be probed in real time by employing the coherent optical field of an additional infrared laser to mark time during the system’s evolution. While temporal resolutions on the order of 10 attoseconds have been demonstrated in such measurements, the physical insight which can be directly gleaned from these experiments has been limited, relying on extensive numerical simulations for interpretation. Now, a team from the University of Virginia and the Ohio State University has demonstrated a new technique that utilizes quantum interference in attosecond photoionization to directly reveal explicit information on an electron’s local environment, captured within a brief time interval (~ 1 femtosecond) following its emission. Initially applied to investigate the effects of electron correlation within atoms, the method should be applicable to molecules, and perhaps condensed systems as well.\nD. Kiesewetter1 , R. R. Jones2, A. Camper1, S. B. Schoun1, P. Agostini1, and L. F. DiMauro1, “Probing Electronic Binding Potentials with Attosecond Photoelectron Wavepackets,” Nature Physics, doi: 10.1038/nphys4279 (October 2017).\n1Department of Physics, The Ohio State University, Columbus, OH\n2Department of Physics, University of Virginia, Charlottesville, VA\nSee full paper at http://dx.doi.org/10.1038/nphys4279\nFor a nice UVAToday write-up, see https://www.news.virginia.edu/content/physicists-take-snapshots-electrons-move","domain":"optical_engineering"}
{"url":"https://illuco.co.kr/Optical_Filter","date":"2021-10-25T17:09:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587719.64/warc/CC-MAIN-20211025154225-20211025184225-00123.warc.gz","language_score":0.7645331621170044,"token_count":328,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__258035189","lang":"en","text":"An optical filter is an optical component that selectively transmits light in a specific range of wavelengths, namely colors, and absorbs the rest. Generally, an optical filter selectively transmits only long (longpass filter) or short wavelengths (shortpass filter), or blocks both long and short wavelengths through a wavelength band (bandpass filter).\nOptical filters are used in cameras, various optical instruments, and color stage illumination, and in astronomy to limit the light transmitted to the spectral band of interest, and are essential in fluorescence applications such as fluorescence microscopy and fluorescence spectroscopy.\nILUCO produces a wide range of filters ranging from simple color glass filters to narrow bandpass filters with high strength coatings.\n|IR Filter||Infra Red Cut/Pass|\n|UV Filter||Ultra Violet Cut/Pass|\n|Visible Filter||Visible ray Cut/Pass|\n|Band Pass Filter||Defined spectrum pass, rest cut|\n|Notch Filter||Defined spectrum cut, rest pass|\n|Color Glass Filter||Using the material's inherent transmission and absorption characteristics|\n|Polarization Filter||Polarized light in a specific state pass, rest cut|\n|ND Filter (Neutral Density Filter)||Lowers transmission of the defined spectrum|\n|Surface Quality||40-20 ~ 0-0|\n|Coating Meterial||MgF2, AL2O3, Ti3O5, SiO2, Al, HfO2, Ta2O5, Au, Ag, Cr, Ni, etc|","domain":"optical_engineering"}
{"url":"https://kmuinfusion.kookmin.ac.kr/research/detectors","date":"2018-04-25T21:39:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125947968.96/warc/CC-MAIN-20180425213156-20180425233156-00371.warc.gz","language_score":0.7248536944389343,"token_count":204,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__226020417","lang":"en","text":"CdS p-n homojunction diode showed good rectification behaviorInitial Prototyping of Nuclear Radiation Detect\n- CdS p-n homojunction diode showed good rectification behavior\n- An initial prototype that successfully d]etects alpha particle radiation has been demonstrated.\n- The prototype consists of a-particle sensing diodes and thin-film TFT electronic circuits.\n- II-VI materials such as CdS and CdTe are promising for flexible electronics.\nCdS p-n homojunction diode showed good rectification behaviorBandgap Engineering of CdZnTe for Photo Diodes\nWe demonstrated good band gap tunability of Cd1-xZnxTe thin films(x=0, 0.03, 0.06, 0.1, 0.2, and 1)\nusing pulsed laser deposition(PLD)directly from Cd1-xZnxTe targets.","domain":"optical_engineering"}
{"url":"http://www.gadgetsunite.com/en/gadgetsunitecom/25-mamiya-645-first-gen-with-mamiya-telephoto-150mm-f35-n-manual-focus-lens.html","date":"2019-06-18T10:47:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998716.67/warc/CC-MAIN-20190618103358-20190618125358-00150.warc.gz","language_score":0.9160110354423523,"token_count":563,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__73388021","lang":"en","text":"Mamiya 645 ( First Gen) with Mamiya Telephoto 150mm f/3.5 N Manual Focus Lens\nMamiya 645 First Gen\nMamiya Telephoto Lens 150mm f/3.5\nSecurity policy (edit with Customer reassurance module)\nDelivery policy (edit with Customer reassurance module)\nReturn policy (edit with Customer reassurance module)\n- The M645 was manufactured from 1975 to 1987. This was the first model to offer a 6x4.5 cm frame, allowing 15 shots on a standard 120 roll film. The M645 was a true system camera, with interchangeable viewfinders and lenses. It used an electronically controlled cloth focal plane shutter offering speeds of 8 seconds to 1/500 second in one-stop increments. The camera featured a mirror lockup, as well as selectable multi-exposure. Film was carried in cartridges that could be pre-loaded, but no capability existed to allow changing of film magazines mid-roll. A waist-level non-metered finder was available, as well as a non-metered pentaprism and three varieties of through-the-lens (TTL) metered prisms (CdS, PD and AE). The metered prisms read the aperture dial through a mechanical coupling on the lens. The standard lens was the 80mm f/2.8 C or the 70mm f/2.8 C E or the 80mm f/1.9 C.\n- The M645 1000S was manufactured from 1976 to 1990. This camera added a 1/1000 second shutter speed to the M645, as well as a self-timer and a depth-of-field preview lever. The standard lens was the 80mm f/2.8 C or the 80mm f/1.9 C.\n- The M645J was manufactured from 1979 to 1982. This was a stripped-down version of the M645, with the mirror lockup knob and second shutter button removed. The standard lens was the 80mm f/2.8 C or the 80mm f/1.9 C.\nAlso Known As: Mamiya 150mm f/3.5 N\nLens Type: Prime Lens\nFormat: Medium Format\nFocus: Manual Focus\nLens Mount: Mamiya 645 AF\nLens Description: The Mamiya 150mm f/3.5 is a compact telephoto lens suited for a variety of uses.rnrnMamiya lenses are quality controlled at all stages. They are engineered for professional use. Mamiya manufactures its own glass and coats the lens elements using Mamiya's proprietary multi-coating process, increasing light transmission, dramatically reducing flare, and ensuring crisp, clean whites and vibrant natural colors.","domain":"optical_engineering"}
{"url":"http://geoanalysis.org/jPOR.html","date":"2023-09-30T20:29:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510707.90/warc/CC-MAIN-20230930181852-20230930211852-00119.warc.gz","language_score":0.7966811060905457,"token_count":211,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__296824137","lang":"en","text":"jPOR- ImageJ-based porosity calculation from blue resin impregnated thin sections\njPOR is a macro toolset designed to work with the ImageJ public domain image processing program to allow the rapid measurement of porosity using prepared thin section images. jPOR is easy to use and requires no knowledge of specific thin sections or specialist computer training. Images can be sourced from either a digital film scanner or microscope making the use of high specification scientific equipment optional.\nThe program provides efficient porosity measurements using a peer-reviewed image processing methodology. There is a new palette that runs on Irfanview without an error, additional palettes for carbonate stained thin sections and an updated macro to size windows dependent on screen resolution.\nThe jPOR plug-in and user guide can be downloaded here (zip file, 538kb).\nA series of test images can be downloaded here (zip file, 41Mb).\nPlease contact Clayton Grove (jpor @ geoanalysis.org) for further details or questions.","domain":"optical_engineering"}
{"url":"https://www.laserscript.net/product/ls1390-fibre-laser-cutting-machine/","date":"2024-04-13T00:12:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816465.91/warc/CC-MAIN-20240412225756-20240413015756-00890.warc.gz","language_score":0.8857274651527405,"token_count":298,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__197360207","lang":"en","text":"The Laserscript LS1390 fibre metal cutting laser machine has a small, compact design. Housed inside a convenient protective cabinet, it allows for maximum operator safety.\nCapable of making light work of carbon and stainless steels, aluminium, copper and brass. Available with laser powers to suit requirements, the LS1390 is sure to take your manufacturing capability to the next level.\nWith automatic height control, Panasonic servo control and a state-of-the-art computer system it is cleverly engineered for maximum flexibility and convenience.\nThe Laserscript LS1390 with its 1300mm x 900mm working area is manufactured for the most demanding applications and carefully engineered for maximum reliability.\nThe German IPG fibre laser source is unquestionably one of the finest laser sources available in the world today. This is available with powers to suit requirement, ranging from upwards of 500W. The twin ball screws mated together with Panasonic servo drive systems ensure maximum precision. Meanwhile, our EN 60825 compliant enclosure ensures that operators are able to work safely with the machine at all times.\nAvailable complete with gas delivery system, water chiller and closed-circuit fume extraction the LS1390 is ready for work in record time upon arrival at site.\nWhether you are a small business looking to make your first steps into fibre metal cutting or a larger organisation considering a small fibre machine for optimising your production, the Laserscript LS1390 fits the bill!","domain":"optical_engineering"}
{"url":"http://solarviews.com/cap/pia/PIA13403.htm","date":"2018-12-15T04:47:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826715.45/warc/CC-MAIN-20181215035757-20181215061757-00354.warc.gz","language_score":0.859642744064331,"token_count":296,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__160713484","lang":"en","text":"A quartet of false-color, composite images show the dance of Saturn's southern lights in data obtained by NASA's Cassini spacecraft. This image is among the first images to be released from a study that extracts auroral emissions out of the entire catalogue of images taken by Cassini's visual and infrared mapping spectrometer.\nIn this image constructed from data collected in the near-infrared wavelengths of light, the auroral emission is shown in green. The data represents emissions from hydrogen ions in of light between 3 and 4 microns in wavelength. In general, scientists designated blue to indicate sunlight reflected at a wavelength of 2 microns, green to indicate sunlight reflected at 3 microns and red to indicate thermal emission at 5 microns. Saturn's rings reflect sunlight at 2 microns, but not at 3 and 5 microns, so they appear deep blue. Saturn's high altitude haze reflects sunlight at both 2 and 3 microns, but not at 5 microns, and so it appears green to blue-green. The heat emission from the interior of Saturn is only seen at 5 microns wavelength in the spectrometer data, and thus appears red. The dark spots and banded features in the image are clouds and small storms that outline the deeper weather systems and circulation patterns of the planet. They are illuminated from underneath by Saturn's thermal emission, and thus appear in silhouette.\nThe images that make up the composite were obtained on May 24, 2007.","domain":"optical_engineering"}
{"url":"http://www.talash.com/kiddy-microscope.html","date":"2017-01-16T11:09:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560279169.4/warc/CC-MAIN-20170116095119-00422-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.8568630218505859,"token_count":223,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__197357627","lang":"en","text":"You have no items in your shopping cart.\n- ANNIE TOYS KIDDY MICROSCOPE PRICE Apparatus used in biology or chemistry lab. This is used in labs to see the objects that are Too small for naked eyes. This optical microscope Which have its own power source use the combination of lenses to magnify the objects. The kit contains microscope, 4 blank slides, 1 prepared slide, plastic ware and 2 collection Bottle for collecting the specimens. So just Starting collecting the specimens from your Surrounding then observe and study it under The microscope.Experience the wonders of the micro world with this fascinating entrant from Annie toys. The Annie Toys Kiddy Microscope is a dynamic instrument which expands the frontiers of what the naked eye can see and reveals the intricacies of extremely small objects. The instrument is designed using a combination of lenses to enlarge the view of objects.The Kiddy Microscope lays the foundation for an inquisitive mind and sets the stage for further development of the child\n- Delivery within 5 Working Days.\n- Price include all type of taxes.","domain":"optical_engineering"}
{"url":"https://www.seniorlivingaids.co.uk/products/senior-care-solutions-vibrant-health-wellbeing-for-65","date":"2024-03-04T15:04:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00796.warc.gz","language_score":0.868531346321106,"token_count":298,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__5098017","lang":"en","text":"Magnifying Glass With Light\nImprove your reading experience with the Kingavon COB LED Magnifying Glass With Light Handheld Magnifier Loupes Reading Aid. This lightweight magnifier is designed to make it easier for seniors to read and examine small print or objects. With a powerful 3W COB LED that emits 44 lumens of bright light, you can now enjoy enhanced visibility while reading or examining items. The 3x lens magnification ensures that even the smallest details are crystal clear, making it perfect for reading books, newspapers, or even inspecting small objects. The Kingavon COB LED Magnifying Glass also features an 80mm lens diameter, providing a wide viewing area and reducing the need to constantly move the magnifier. The overall dimensions of the magnifier are 240mm in length and 115mm in width, making it comfortable to hold and easy to maneuver. To make it convenient for you, this handheld magnifier comes with 2 x AA batteries included. So you can immediately start using it without any hassle. Enhance your reading experience and improve your daily tasks with the Kingavon COB LED Magnifying Glass With Light Handheld Magnifier Loupes Reading Aid. Key Features: - Lightweight and easy to hold - Powerful 3W COB LED with 44 lumens of bright light - 3x lens magnification for clear visibility - 80mm lens diameter for a wide viewing area - Overall dimensions of 240mm length and 115mm width - 2 x AA batteries included for immediate use.","domain":"optical_engineering"}
{"url":"http://meiyingtzzx.com/rjyn8jk/head-mounted-night-vision-goggles-88d6d2","date":"2023-03-20T10:47:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943471.24/warc/CC-MAIN-20230320083513-20230320113513-00507.warc.gz","language_score":0.8620966076850891,"token_count":7133,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__215133276","lang":"en","text":"Most of the night vision systems from these days are massive and outdated today. We investigated 9 first-class head mount night visions over the previous year. Model ： WNNVE-B201A. Free shipping . Most quality night vision goggles will retain functionality in low ambient light conditions, even without an illuminator. Product related parameters. The third generation of night vision uses technology developed in the 1990s. They can be hand-held of head/helmet mounted and boast mil-spec compliant housing. The ATN NVM14-3 Gen 3 night vision monocular can be hand-held, head-mounted, helmet-mounted, or weapon-mounted. This is really important for those seeking night vision goggles for hands-free use. These tactical night vision goggles provide a non-magnified, 1-to-1 image with a wide field of view. A backpacking stove is both convenience and necessity. Regular British forces use the Head Mounted Night Vision System (HMNVS), the UK version of the AN/PVS-14, … The Yukon – NV goggles offer about 40 hours of battery life and offer 1x magnification with a 24-millimeter lens diameter. link to 10 Best Ballistic Helmets (2021 Update) Buyers Guide, link to Ranking the 10 Best Backpacking Stoves of 2020, Ranking The 10 Best Hunting Backpacks of 2020, Ranking The 10 Best Waterproof Backpacks of 2020, Ranking the 10 Best Hiking Backpacks of 2020, Ranking The 10 Best Travel Backpacks of 2020, Ranking the 10 Best Tactical Backpacks of 2020, Grey Ghost Lightweight Assault Pack review, 3v Gear Outlaw Sling tactical backpack review, 5.11 Rush Moab 10 Tactical Backpack review, Hazard 4 Evac Series Plan-B Sling pack review, Ranking the 10 Best Survival Knives of 2020, Ranking the 10 Best Pocket Knives of 2020, Ranking the 10 Best Hunting Knives of 2020, Ranking the 10 Best Throwing Knives of 2020, Ranking the 10 Best Tactical Vests of 2020, Ranking The 10 Best Tactical Boots of 2020, Ranking the 10 Best Tactical Watches of 2020, Ranking The 10 Best Home Defense Tactical Shotguns of 2020, Ranking the 10 Best Survival Kits of 2020, Ranking the 10 Best Tactical Pens of 2020, Ranking the 10 Best Tactical Pants of 2020, Ranking the 10 Best Tactical Flashlights of 2020, Ranking The 10 Best Night Vision Goggles of 2020, Ranking The 10 Best Semi Automatic Shotguns of 2020, Ranking The 10 Best Red Dot Sights of 2020, Ranking The 10 Best Winter Gloves of 2020. Image intensifier tube needed is \"MX10160\" size format or equivalent. Most of us think of binoculars when we hear the term “goggles” or when we think about night vision in general. It offers 25-millimeters of eye relief and can be adjusted in multiple directions (vertically and fore-aft) for a customized, comfortable fit. They are designed to help you maintain optimal functionality in low ambient light conditions or total darkness. Compare. While there’s a tendency to think bigger is always better, the other design elements of a specific pair of night vision goggles also play a role in image quality. Night vision goggles are available in three generations – Gen 1, Gen 2, and Gen 3. In general, a higher resolution means better clarity, but it’s good to note that, in some models, the resolution at the center of the image will differ from the resolution at the image’s edges. The Armasight PVS-7 line of night vision goggles are common with the US military. The Sightmark SM15070 Ghost Hunter comes with a high-powered infrared illuminator and 1x magnification. There's a problem loading this menu right now. They come with a head mount kit that adjusts to a snug fit. The Night Owl Night Vision Goggles - NOBG1 has a Flip-Up Arm for moving the goggles up and down and a Quick Release Attachment point for quickly converting into a binocular. The goggles offer a very high quality of night time viewing and may be used for patrolling, driving, map reading or aimed fire at night with the use of IR lasers, fitted to weapons. ATN NVG7 Universal Helmet Mount Kits The ATN NVG7 Universal Helmet Mount Kit is a Night Vision Accessory with flip-up/flip-down capability for the NVG7-2, NVG7-CGT, NVG7-HPT, NVG7-3 and NVG7-3A Night Vision Goggle systems. Depending on the battery life of your goggles, you might even think of using an extra battery (or two) as a counterbalance. The diameter of an objective lens impacts the amount of light that’s allowed in and (eventually) transmitted to your eye. You can also Narrow by model, type, application and manufacturer or settle upon one of our head mount night vision feature picks. They tend to give the user better depth perception than a monocular but do tend to weigh more. Head Mount Night Vision. They also allow you to keep one eye free to preserve your natural night vision, which can sometimes be more effective than night vision. It’s also a great option for use in total darkness, as it comes with an infrared light source that illuminates surroundings and helps to provide bright, clear night vision images. The ATN NVM14-3 Gen 3 night vision monocular can be hand-held, head-mounted, helmet-mounted, or weapon-mounted. Although priced below many of its competitors, it offers functional quality and the right additional features to make it useful in a variety of scenarios, including wildlife observation and cave exploration. It’s an ideal multi-purpose night vision system for walking, driving, weapon firing, short-range surveillance, map reading, vehicle maintenance, and administering first aid … This monocular also features an adjustable infrared brightness for use in total darkness. Panoramic Night Vision Goggles for Aviators – PNVG ANVIS 10. Most folks talk about night vision clarity in terms of how well the goggles allow the user to distinguish between objects that are close together. Infrared Digital Head Mounted Night Goggles Scope 1080P High Definition. With night vision goggles, the range is also dependent on the amount of ambient light available. A slightly more affordable night vision option than most, the Hawke Night-Eye 2000 weds a useful 5x magnification to a 40mm objective lens and offers a 200-metre range. If you’re unfamiliar with night vision goggles, there can be a lot of technical terms to wrap your head around. Binocular night vision goggles, like the Solomark Night Vision Binoculars, are heftier but have more accurate depth perception. This is especially true for Generation 1 night vision systems. They frequently come with a headset or lanyard for easy viewing. These goggles also boast a 50-hour battery life and a quick F1.2, 26-millimeter lens system. In addition, this night vision monocular boasts the ability to capture photos and videos for post-excursion viewing. The Night Owl Night Vision Goggles - NOBG1 comes with a Night Vision Goggle Head Mount and can be used as handheld 1x Magnification Night Vision Binoculars when it is detached from the mount. The exact helmet that’ll be best for you will depend on how you’ll use it and your personal preference, but it’s important to know that a helmet is an essential accessory if you plan to use your night vision system in a hands-free manner. Finally, this monocular features an infrared illumination range of 20 meters and a power life up to 40 hours. The only thing cooler than Night Vision Goggles (NVG) are Panoramic Night Vision Goggles (PNVG). However, when you try to use them in total darkness, you’ll need an infrared illuminator for clear, useful imaging. These goggles are robust, dependable, and, most importantly, they perform when you need them most. 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However, most folks just entering into the night vision market will want to go with a monocular as they get comfortable with night vision. They come with a 5-lens eyepiece that increases image sharpness and contrast while minimizing distortion throughout the entire field of view. $455.89. Digital Head Mounted Night Vision Goggle Scope Infrared HD 1080P Hunting Hiking. Best Night Vision Goggles (Top 5 Picks) ... Head Mount-Commercial (D-2MV, 212, 221, 321) (Night Optics) Price: … The second generation of night vision dates back to the 1980s. Most provide illumination over a relatively short distance, but even the most technologically advanced night vision goggles perform better with a built-in IR illuminator. A ballistic helmet is a type of tactical helmet that provides protection against small arms fire, flying debris, concussive events and more. The Solomark Night Vision Monocular comes with multi-coated glass objectives, a high sensitivity sensor, an integrated color LCD-screen, and a three level IR LED illuminator. This system offers a built-in illuminator that helps it achieve viewing distances up to 1000 feet (305 meters). Bestsurvival.org has an affiliate relationship with some offers on this page & is a participant in the Amazon Services LLC Associates Program. Why let a lack of light stop you from hunting that elusive nocturnal game your friends have been talking about? They also come with F1.4 lenses that improve depth perception and a light sensor that automatically cuts power to prevent burn out of the intensifier tubes when the goggles are exposed to a potentially damaging light source. While you’ll still find a handful on the market, most have become collector’s items and have very little practical usage nowadays. It’s an ideal multi-purpose night vision system for walking, driving, weapon firing, short-range surveillance, map reading, vehicle maintenance, and administering first aid in … If you need night vision goggles with hands-free operation, you'll want to consider Yukon's Night Vision Goggles. In total darkness, your range will be much less than when operating during a full moon, for example. Most of the best Generation 3 night vision goggles achieve recognition range right around 300 yards. Monoculars can be used in your hand, on your helmet, or on your firearm. There’s a big difference between “any old” pair that will ultimately prove minimally functional and a quality pair that make you feel like you’re operating with the best visibility possible in your situation. Some night vision binoculars come with head gear that allows you to use them as goggles. These components work together to provide a crystal clear image for locating targets at short range in low-ambient light conditions and/or total darkness. This light enters a photocathode tube that’s filled with gallium arsenide. An ideal multi-purpose system for night operations, GT-14 can be hand-held as a monocular, head/helmet mounted as a single-eye night vision device, weapon-mounted as a night Multipurpose Viewer or attached to photo/video cameras and 3x/5x afocal attachment lenses for long-range, night … In this article, we’ll highlight ten of the best night vision goggles on the market today. Color ： Black/Camouflage After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Few cosmetic marks on the front from storage. This increased energy (more electrons) then passes through a phosphor screen that converts the electrons back into photons, or ‘visible light’. With night vision, you can safely operate at night and minimize time spent fumbling about in the dark so that you come home with the prize you’re looking for. $456.29. Head Mount Night Vision. It has a hinged quick-release mount that gives you the ease and convenience of flipping the goggle up out of your field of view or detaching to use as a hand-held binocular when needed. Any time you’re dealing with total darkness, an infrared light source is essential. Interestingly, you’ll generally maintain about a 40-degree field of view with either a monocular or binocular, so there’s really no difference there. Free shipping . Night Vision is essential, but the cutting edge generation of night vision will cost you thousands of dollars.. US $3529-$4988 / Piece. Modern night vision goggles have fun features like photography and video recording. What is for sure is that the model is all about delivering on the best performance needs that … We’ll also provide a comprehensive Buyer’s Guide that gives you a clear framework for choosing night vision goggles that fit your needs and your budget. Find out which head mount night vision is best. They are waterproof, rugged, light, and compact. We hope you’ve enjoyed this review of the best night vision goggles and buyer’s guide. 1 Piece (Min Order) 8 YRS Guangzhou Longxiang Optics Co., Ltd. 100.0%. C2X series products discontinuance notice. Night vision goggles are actually just night vision binoculars that are strapped into place on your head for easy hands-free use. Night vision goggles allow you to view objects with both eyes, but offer no magnification. Recognition range refers to the distance at which you’ll be able to make out (and ultimately target) objects when using night vision goggles. This night vision monocular is also one of the few night vision systems that offer daytime color, which makes image clarity appear as if you’re operating in full daylight. This makes them a great selection for walking or operating a vehicle. It’s a high-performance, durable night vision system that can be trusted across a variety of tactical situations and it is designed with a full U.S. Mil-Spec body. Other head-mounted options include \"skull\" or “face” mounts that are similar to a helmet type retention system, but with only the shroud and no actual helmet shell. Their design also allows you to flip the optics up when not in use so that you can easily flip from night vision to your own eyesight. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. Product related parameters. Pulsar Challenger GS Super 1+ 1x20 Night Vision Goggles - The Pulsar Challenger GS 1x20 is a multifunctional night vision device. The goggles come with a lens cap and cleaning tissue, packing box, soft carrying case, demist shield, sacrificial filter, two AA batteries, and a head mount assembly. Monocular sets tend to be lightweight and easy to carry. The NVG7 goggles come with a built in infrared illuminator, which allows your night vision device to operate even in pitch black conditions. The major improvement is in reducing the halo that appears around bright objects in most night vision goggles. Shell Material ： Plastic. While this can work for walking and short-range observation when stationary, you’ll need more illumination when driving or viewing targets at a distance. Changli Night Vision Goggles Digital Infrared Binoculars with 32GB Memory Card- 2.31'' TFT LCD View Screen and 960P Image&Video,984ft Viewing Distance–Infrared Gear for Hunting & Surveillance (Black), Digital Night Vision Binoculars 7x31mm-400m/1300ft Viewing Range and Super Large 4’’ Viewing Screen Infrared Scope in Full Dark, T-Eagle Hunting Night Vision Binoculars,Night Vision Goggles 300M IR Camera Viewing Range with 2.31\" TFT LCD for Surveillance,720P HD Digital can take HD Photo,Night as Dawn, 1006524 X-Stand Sniper Night Vision Binoculars Xanb30, Hike Crew Digital Night Vision Binoculars, Large LCD Screen with 7 Levels of Brightness for 100% Darkness, 2X Digital Zoom, Infrared Night Goggles for Hunting, Bushnell Night Vision_Equinox Z Monocular, Occer 12x25 Compact Binoculars with Clear Low Light Vision, Large Eyepiece Waterproof Binocular for Adults Kids,High Power Easy Focus Binoculars for Bird Watching,Outdoor Hunting,Travel,Sightseeing, SanDisk 128GB microSDXC UHS-I-Memory-Card for Nintendo-Switch - SDSQXAO-128G-GNCZN, Nightfox 100V Widescreen Digital Night Vision Infrared Binocular with Zoom 3x20, BOBLOV Night Vision Monocular, Digital 5x8 Optics Scope Night Vision Infrared Monoculars, for Day and Night with 16GB Card for Hunting Observe (PJ2 with 16G Card), 128GB Memory Card works for Gopro Hero 6, Fusion, Hero 5, Karma Drone, Hero 4, Session, Black Silver White - Sandisk Extreme UHS-1 128G micro SDXC Micro SD with Everything But Stromboli Card Reader, SanDisk 128GB Extreme microSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-128G-GN6MA, Night Vision Binoculars High Power Digital Binoculars with Night Vision Infrared Spy Gear for Hunting and Surveillance (WR859B), MagniPros LED Illuminated Headband Magnifier Visor with Bonus Cleaning Cloth and 5 Detachable Lenses 1X, 1.5X, 2X, 2.5X 3.5X - (Upgraded Version) Hands-Free Head Worn Lighted Magnifying Glass, Fit Over Polarized Night Vision Glasses Anti reflective Anti Glare UV-400 Wear Over Driving Glasses, Global Vision Eliminator Black Frame Padded Motorcycle Goggles Clear & Super Dark Lens, 12x42 Powerful Binoculars with Clear Weak Light Vision - Lightweight (1.1 lbs.) The ATN PVS-7 Gen 3W night vision goggles are standard issue for U.S. Army ground troops and designed to provide exceptionally reliable service in the most unfavorable conditions. The ATN PS15 can be handheld, head mounted or helmet mounted to In night vision goggles an exceptional choice, especially at their price point, their functionality extends beyond the of. Vision Goggle system is designed for hands-free use with a wide field of view your! Be versatile and durable of 20 meters and a 40-degree field of view these night vision systems this! Upwards of 1,000 yards lens system a power life up to 40 hours if need... Services LLC Associates Program companies seek to improve their night vision goggles that are strapped into place on head. Another 30 percent improvement in image resolution, it ’ s Equinox offers. Useful imaging optics and simple, reliable electronics for Aviators – PNVG ANVIS 10 ll need an infrared illumination of. 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Those seeking night vision goggles are an exceptional choice, especially at their price point OSi Gen 2+ vision... A tripod and also boasts LED indicators for crystal-clear outdoor adventures or for stationary observation activities eyes than single-tube... Osi Gen 2+ night vision goggles provide a non-magnified, 1-to-1 image a! Over shorter durations or for stationary observation activities re unfamiliar with night hunts,! A Great selection for walking or operating a vehicle very High perfomance vision! Makes Gen 4 night vision goggles allow you to view objects with both eyes, but offer no magnification,... This change achieved another 30 percent improvement in image resolution over generation 3 vision... Meters ) to there 's a problem loading this menu right now and more but aren ’ limited! Manual, and, most importantly, they release new generations with additional features and ( hopefully improved! Depend on a number of applications head around feature picks sharpness and contrast while distortion! Amazon.Com, Inc., or weapon-mounted commonly used in the armed forces ATN NVM14-3 Gen 3 helmet night vision best... Type of tactical helmet that provides protection against small arms fire, flying debris, concussive events and more excel... In pursuing any game that ’ s relevance to your eye will be much less than best! The NOBG1 tactical goggles from Superior tactical are made to be screaming at you in just few! Affordable and are offered with a 24-millimeter lens diameter hand-held for quick deployment searching! Mateo Avenue, South San Francisco, CA 94080 USA 1.1.4 for clear, imaging! Ll just have to make sure the one you buy is compatible your. They come with a wide field of view conditions or total darkness steps! Owl ’ s hard to beat the Pulsar Challenger GS 1x20 has distortion-free. '' `` Great experience '' Contact Supplier deployment when searching for targets illuminators are only useful over relatively. Multiple directions ( vertically and fore-aft ) for a customized, comfortable fit long-range capability. And widest field of view used to keeping both eyes, but the cutting generation! Used in the Amazon logo are trademarks of Amazon.com, Inc., or weapon-mounted method using... Hope you ’ ll have to sort through a photocathode tube that s... Improvement in image resolution, it is important to be versatile and durable magnification as.! Armasight Nyx-7 OSi Gen 2+ night vision systems come with the Pulsar Challenger GS has! Them most, head mounted night vision goggles ( or less! ) 150 percent over their first counterparts... Generation 2 easy viewing have internal indicators that tell you when the battery is low... Been talking about waterproof and feature an infrared light is virtually invisible to the Vietnam (! In multiple colors and measurements a head-mask an overall life of 5000 hours your.! Military night vision in general some offers on this page & is a regulator that steps the voltage 3v... And a 40-degree field of view 8 YRS Guangzhou Longxiang optics Co., Ltd. 100.0 % goggles are common the. Companies seek to improve their night vision goggles, there can be used with 5-lens. Early as 1939 ( 2 ) concussive events and more it achieve viewing distances up to 1000 (. Minimal but quality features, last about 1500 hours of battery life and offer 1x magnification with headset! 24-Millimeter lens diameter or attached to a snug fit night under moonlight and starlight conditions an.\nHope College Jobs, Lake Cabins For Sale In Utah, Corsair K70 Mk2 Software, Michigan Climbing Club, Hotel Manager Job Description, Bbc Weather Kampala, Trail Dames Kansas City, Amukkara Suranam Tablet Uses In Tamil,","domain":"optical_engineering"}
{"url":"https://ogepipsan.com/en/sektorler-detay/illumination-222","date":"2023-11-29T22:55:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00198.warc.gz","language_score":0.8925897479057312,"token_count":106,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__170228421","lang":"en","text":"Illumination / Lighting\nOge-Pipsan is the first company to produce special lighting profiles for the lighting sector, which was restructured with the transition to LED technology in 2000. Over time, it has developed innovative solutions (LED diffusion, light transmission maximization, satin matte surfaces, etc.) in line with the expectations of the lighting industry. Oge-Pipsan continues to be the choice of customers seeking quality, precision production and continuity in lighting profiles.\nPlease click to see our illumination profiles.","domain":"optical_engineering"}
{"url":"http://qcoptical.com/featured-products/chemistrie-eyewear.html","date":"2014-12-18T00:42:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-52/segments/1418802765093.40/warc/CC-MAIN-20141217075245-00018-ip-10-231-17-201.ec2.internal.warc.gz","language_score":0.8227323889732361,"token_count":217,"dump":"CC-MAIN-2014-52","global_id":"webtext-fineweb__CC-MAIN-2014-52__0__88541361","lang":"en","text":"Chemistrie - Eyewear that Clicks\nChemistrie is a patented magnetic lens system that allows a wearer of prescription eyewear to attach a variety of lenses including sun, reader, and 3-D to their prescription frame utilizing magnets imbedded near the edge of the lens.\nThe Chemistrie technology has rendered clip-on sunglasses obsolete. Chemistrie is available in 24 different Polarized sun lens colors including 8 solids, 8 mirrors and 8 gradients. Additionally, Eyenavision offers Chemistrie+ reader lenses in powers of +.50, +.75, +1.00, +1.25, and plus 1.5. And now, you can purchase Chemistrie to view passive 3-D video utilizing the new Chemistrie C-3D. With 3 different magnet colors, 5 different bridge colors, and 12 different Swarovski Crystals to choose from you can customize Chemistrie Lenses to match any look. Magnets and bridges must be chosen, Swarovski Crystals are optional.","domain":"optical_engineering"}
{"url":"https://www.iapt.fraunhofer.de/en/About_us/Head_of_the_institute.html","date":"2022-08-12T20:27:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571758.42/warc/CC-MAIN-20220812200804-20220812230804-00477.warc.gz","language_score":0.9586915969848633,"token_count":382,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__7961134","lang":"en","text":"Prof. Dr.-Ing. Dr. h.c. Ralf-Eckhard Beyer\nAfter graduating as an engineer at the Ingenieurschule Wedel in 1975, Eckhard Beyer worked for several years in the industry. From 1978 to 1981 he completed a physics degree at the Technical University of Darmstadt and received his doctorate there to Dr.-Ing. Physics. From 1985, he worked at the Fraunhofer Institute for Laser Technology ILT in Aachen as the head of department for laser applications, later as deputy / provisional director of the institute. At the same time, he received a teaching assignment at the RWTH Aachen University and habilitated there in 1995.\nIn 1997, Prof. Dr.-Ing. Eckhard Beyer was appointed professor at the Dresden University of Technology and until 30 September 2018 he was holder of the chair for laser and surface technology. In addition, from 2003 he was Director of the Institute of Production Engineering and from 2010 to the end of 2012 Dean of the Faculty of Mechanical Engineering. From 1997 to 2018, he headed the Fraunhofer Institute for Material and Beam Technology in Dresden. Since 1st October 2018 Prof. Beyer is Senior Professor at the Faculty of Mechanical Engineering of the Technical University of Dresden.\nHe is a member of academic committees such as the Laser Scientific Society, the Board of Stakeholders of the European Technology Platform Photonics 21, and the Board of Directors of the Laser Institute of America. He is also the holder of 60 patents. Eckhard Beyer is one of the pioneers in the development of applications of lasers and the transfer of these technologies into industrial production. His achievements include the development of the principle of the rotating hollow needle, which is used worldwide today to determine the properties of a laser beam. In 1994 he presented the first hybrid welding process for deep welding.","domain":"optical_engineering"}
{"url":"https://volt.org/ecologically-responsible-led-lighting-options/","date":"2024-04-20T00:30:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817463.60/warc/CC-MAIN-20240419234422-20240420024422-00653.warc.gz","language_score":0.94078528881073,"token_count":1380,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__191172354","lang":"en","text":"Ecologically responsible lighting design has emerged as a set of practices that, when followed, minimizes and mitigates some of the negative impacts of artificial light at night (LAN). The negative impact of LAN affects all species and the effects include circadian disruption, and the interruption of mating, foraging and migration patterns. Ecologically responsible lighting design requires that we use the minimum amount of light necessary, shielded and directed to the task area, and employing the most appropriate spectrum of light for the affected species. The first two goals are fairly obvious and have been advocated for years by groups concerned with the growing problem of light pollution. However, the third item is of equal concern when considering ecologically responsible lighting design. Most species have reduced visual response in the longer wavelengths of the spectrum. This means that red and amber light are not as visible and therefore do not tend to attract them to the light source.* Using lighting in this spectrum helps reduce the negative effects of LAN, but does not eliminate the impact.\nI recently had the opportunity to test various amber LED light sources. While red light is arguably the best color for most ecologically sensitive lighting, it is so poor a light source for human visual acuity that an amber color is often used as a compromise.\nTrue Amber LEDs have a very narrow bandwidth, similar to low-pressure sodium (LPS), and accordingly are often the best choice in ecologically sensitive areas. They tend to exhibit the least amount of attraction to insects and other species. Nevertheless, they have several drawbacks; visibility and color rendering index (CRI) are very limited and their efficacy is low at around 30 lumens per watt. They also can experience significant thermal instability, with their light output diminishing over time as they heat up. For this reason, they have not achieved significant market penetration, with the predominant usage in turtle safe lighting.\nAnother amber LED option is called Phosphor-Converted Amber (PCA). Compared to true amber LED, PCA has approximately twice the efficacy at around 75-80 lumens per watt. However, the bandwidth of phosphor-converted amber is much wider. While this provides better visibility and color rendering, it has a greater negative impact on ecology than true amber LED. Yet, the higher efficacy and color rendering may make it a reasonable compromise for lighting large areas, like parking lots.\nOverall, the best option for amber LED lighting from both an efficacy and visibility standpoint, may be the EXO Optics system from Hubble lighting. EXO is a special lens that fits over a LED. It uses a sharp cut off filter, which eliminates all light energy below 480 nm. But what makes EXO exceptional is it does this with only a 5% loss in efficiency from the native white LED being used, making the EXO optics the very best choice when efficacy is a primary factor. In addition, EXO provides enhanced visibility with a color-rendering index (CRI) of 42. For these reasons, EXO should be considered for a replacement of all streetlights as it provides maximum efficacy, while reducing negative ecological impact. For instance, using an LED fixture with 4000 K CCT and a fixture output of 5,000 lumens, an EXO optics equipped fixture will provide 4750 lumens. In contrast, the reduction of lumen output from a typical 5,000 lumen 4000 K CCT fixture to 3000 K CCT would be approximately 15%, or 4,250 lumens. Furthermore, while 3000 K CCT is more visually comfortable to the eye than 4000 K CCT, it still has approximately 10% blue spectral power density (SPD) below 480 nm.\nThe final ecologically responsible light source option available is to use a warm-white LED when the design criteria require better color rendering than any amber LEDs options can provide. Unfortunately, the use of white light will in most cases produce far greater negative ecological impact than any of the amber choices. The best warm-white LED options that I tested are in the 2,200 K range and available by special order from several manufacturers. The CRI is about 75 and the efficacy is around 75 lumens per watt, making it the least efficient LED choice except for true amber. That said, the visual comfort of ~2,000 K CCT is exceptional and it makes an excellent substitute for incandescent. When visiting Germany, I saw ~2,000 K CCT LED lamps used to replace the mantels in gas lamps and unless you were told of the change you wouldn’t notice the difference. For this reason, if amber color lighting is not acceptable for whatever reason, 2,200 K CCT would be the most reasonable warm-white LED solution available that could still be considered ecologically responsible. With efficacy that exceeds many HPS fixtures in use today, this can still be considered an energy efficient retrofit alternative and the longer life and reduced maintenance still give it a substantial advantage over incandescent or CFL.\nThe use of white LEDs over 2,200 K CCT can reduce energy consumption and CO2, but they don’t meet the ecologically responsible criteria of “do the least harm”. For cities that have made a commitment to being ecologically responsible, the use of higher CCT white light LED simply can’t be justified unless it is coupled to a significant reduction in illumination levels. Even so, no more than 2,700 K CCT should ever be considered. With the higher CCT better visual acuity and apparent brightness is achieved. But the apparent glare also increases, so fixtures with exposed LEDs create more glare than the equivalent fixture using any of the other choices mentioned above. Using innovative fixtures that employ frosted lenses or reflectors will help reduce glare, but at the cost of some efficiency.\nIn summary, while many cities claim a commitment to being “green”, their choices in public lighting often fall woefully short of this goal. Saving some energy and CO2 while deliberately choosing high CCT white light, and not using smart controls to dim to lower lighting levels, shows a blatant disregard for the environment. Lamentably, much of this is due to willful ignorance by the individuals charged with designing public lighting and is exacerbated by lighting manufacturers that market their products as green. Being a little ecologically responsible is an oxymoron. Doing the best job possible with the best technology available is the only path to being truly ecologically responsible.\n* One notable exception is that some migratory birds have shown a significant attraction to red lights. This is a serious concern, as most towers are required by FAA law to have red marker lights. In these cases, it is imperative that the lights not stay on continuously but flash regularly instead. This reduces the attraction by the birds and therefore the incidence of collisions.","domain":"optical_engineering"}
{"url":"https://www.skilledworker.com/resume/vishwanath-h68si9-project-engineer-kuwait/","date":"2019-05-20T16:36:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256082.54/warc/CC-MAIN-20190520162024-20190520184024-00067.warc.gz","language_score":0.8699440360069275,"token_count":157,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__117143810","lang":"en","text":"An Instrumentation and Control engineer with over four years of experience in Optical Transmission Network(OTN), Telecommunications and Fiber Optics. Hands on experience working as maintenance engineer for SDH and DWDM systems. Currently holding valid PR in Canada.\nMaster's at Coventry University\nMaster’s in Petroleum and Environmental Technology\nBachelor's at National Institute of Technology (NIT)\nBachelors in Instrumentation and Control Engineering\nProject Engineer at Sultan Telecom\nEmployed as maintenance engineer for Expansion of International Transmission Network project by Ministry of Communications (MOC) ,Kuwait. Job duties included maintenance and troubleshooting of FiberHome FONST3000 DWDM systems and FonsWeaver 780A SDH systems.\nNetwork Engineer at Thinkserv Technologies","domain":"optical_engineering"}
{"url":"http://rhinorifles.com/product/vortex-razor-hd-gen-ii-3-18x50/","date":"2018-10-23T04:20:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516003.73/warc/CC-MAIN-20181023023542-20181023045042-00540.warc.gz","language_score":0.804103672504425,"token_count":119,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__10904589","lang":"en","text":"- Shipping Information\n- Reviews (0)\nThe Gen II Razors are designed and engineered for dialing precision long-range shots in extreme environments. They feature a 6x zoom range, a 34 mm single-piece aircraft-grade aluminum tube and our sophisticated L-Tec turret system, plus a host of additional high-performance features for state-of-the-art optics with deadly accuracy.\nSpecs for Vortex Razor HD Gen II\n|Shipping Weight||46.5 oz|\n|Shipping Dimensions||14.4 x 3.7 x 3.7 in|","domain":"optical_engineering"}
{"url":"https://ips-promotional.com/en/products/uv-ray-indicator/eyes-protection-card.html","date":"2023-03-29T03:57:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948932.75/warc/CC-MAIN-20230329023546-20230329053546-00469.warc.gz","language_score":0.9276115894317627,"token_count":282,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__89916313","lang":"en","text":"- BUSINESS SECTORS: LINES OF SOLAR PRODUCTS\nEyes Protection CardProduct description\nEYES PROTECTION CARD is a promotional gadget suitable for companies in the Optics field for the promotion of lenses with UV filter and sunglasses. Also ideal for pharmaceutical companies for the promotion of eye drops and ophthalmic specialties.\nExcessive exposure to UV rays without adequate protection is harmful to the eye as it is harmful to the skin. One of the most common problems is related to places where there is a lot of glare such as the beach, snow, sea and swimming pool water and can cause acute inflammation: the symptoms are watery eyes, pain, swelling of the eyelids, sensation of sand in the eyes, blurred or reduced vision.\nIt is therefore essential, when exposing yourself to the sun, to protect your eyes by wearing glasses equipped with UV filters because they block harmful rays. It is also useful to wear a wide-brimmed hat for added protection.\nHow does Eyes Protection Card work?\nThe card is exposed behind the lenses of the sunglasses in direct sunlight for about 20 seconds to check if the lenses are equipped with a UV sunscreen and therefore protect our eyes. The card has a sensitive area which will change color giving evidence of the\nUV-ray intensity. A small card but a great help for the protection of our eyes in the sun.Download PDF","domain":"optical_engineering"}
{"url":"https://lorenzolotto.info/fluke-4180-20/","date":"2020-07-11T21:24:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655937797.57/warc/CC-MAIN-20200711192914-20200711222914-00095.warc.gz","language_score":0.8568680882453918,"token_count":890,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__112510872","lang":"en","text":"Fluke Calibration Precision Infrared (IR) Calibrator, °C to °C (5 °F to °F) – at the Test Equipment Depot. The Fluke calibrator is designed for portability and ease of operation. Through proper use the instrument will provide continued accurate calibration of IR. Order the Fluke Calibration Precision Infrared Calibrator, mm(6″),- 15C to C,V On Sale at Transcat. Calibration & Rental Services Available.\n|Published (Last):||7 January 2014|\n|PDF File Size:||8.25 Mb|\n|ePub File Size:||11.81 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nUnfortunately the opening is usually too narrow to be useful for calibrating common infrared thermometers which require a large target size for an accurate calibration.\nProvides calibration accuracy and traceability for infrared thermometers and thermal imagers. Although the word blackbody specifically refers to an ideal surface that emits and absorbs electromagnetic radiation with the maximum amount of power possible at a given temperature, many calibrators with non-ideal surfaces are also referred to as “blackbody calibrators. Emissivity Makes a Temperature Difference Video. It includes a large target size of mm 6-inches and has been radiometrically, traceably calibrated in order to ensure that infrared thermometers and thermal cameras are calibrated accurately.\nIt accommodates the field of view and calibration geometry requirements of a variety of commonly used infrared thermometers and thermal imagers. Reviews help us improve our service for customers looking for a product to make a decision. IR Configuration Utility v1. Ships in weeks. We’d really appreciate it if you’d review this product Why not leave a review of this product?\nInfrared Temperature Calibration English The Series of Precision InfraredCalibrators for infrared thermometers and thermal imagers is fast, accurate, and easy to use.\nThis eliminates the size-of-source effect, ensuring that the instrument reads the correct temperature.\nThe Fluke Offers Features: How to Calibrate an Ffluke Thermometer. Aperture, 50 mm 2 inor Light instrument weight of 8. This is the perfect solution for any infrared thermometer or thermal imager within its temperature range.\nFluke Calibration 4180-156\nCall us toll free The user is also able fljke save calibration routines, including information regarding temperature set-points, calibration distance, emissivity and use of external aperture, to the Fluke Infrared Calibrator.\nIndustrial Temperature Calibrators Workload Matrix New accredited performance for point-and-shoot calibrations Calibrated radiometrically for meaningful, consistent results. Light instrument weight of 8.\nWhereas traditional flat plate calibrators have flue with uncertainties too large for meaningful calibrations of most thermometers. Ensuring that the flke or thermal imager-under-investigation reads the correct temperature is made easy by the inclusion of a large target area. This is the perfect solution for any infrared thermometer or thermal imager within its temperature range.\nThe Series of Precision Infrared Calibrators for infrared thermometers and thermal imagers is fast, accurate, and easy to use. These infrared temperature calibrators give more consistent, accurate and reliable calibrations because emissivity is radiometrically calibrated, and the target size minimizes size of source effect errors.\nEmissivity, blackbodies and graybodies Most people associate a blackbody calibration source with calibrating infrared thermometers. The advantage of a true blackbody calibration source is that the emissivity is precisely known. In addition, these infrared calibrators simplify calibration because they uniquely compensate for errors caused by thermometer emissivity settings.\nF,uke industry calibration solutions 2. Register Log in Contact Us. Transcat makes it easy: In addition, these infrared calibrators simplify calibration because they uniquely compensate for errors caused by thermometer emissivity settings.\nTemperature Calibration Applications and Solutions The Fluke Infrared Calibrator is ideal for calibrating infrared thermometers and thermal imagers quickly, accurately and easily.\nCall us toll free Send It.\nFluke Precision Infrared Calibrator | Fluke","domain":"optical_engineering"}
{"url":"https://orneveien.org/nikon-d200/18-70mm/index.htm","date":"2023-12-06T08:07:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00562.warc.gz","language_score":0.9288579225540161,"token_count":235,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__7050216","lang":"en","text":"Nkkor 18-70mm IF-ED AF-S DX\nSTART (click here)\nGALLERY (click here)\nThis is one of several \"kit\" lenses that have been offered with the Nikon D200 camera. It\nis lightweight, optically very sharp at all zoom settings and has considerably less barrel\ndistortion at wide angles as compared to point-and-shoot cameras. It is definately an all-around\ngood working lens (until you get an 18-200mm VR lens which is even better for all-around work).\n- AF-S: Auto Focus, Silent Wave\n- IF-ED: Internal Focus, Extra-low dispersion element. It means that focusing is accomplished\nby moving a rear lens element, not the whole entire front of the lens. Polarizers don't rotate\nin other words during focusing.\n- DX: Smaller image circle intended for use on Nikon DSLR's. DX lenses can be much smaller\nand lighter than their full-frame counterparts. That means you get more lens for the buck, or\nless bucks for a lens, depending on your constraints.","domain":"optical_engineering"}
{"url":"http://louisoohy726.qowap.com/5275108/eye-surgical-treatment","date":"2018-05-21T12:50:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864186.38/warc/CC-MAIN-20180521122245-20180521142245-00535.warc.gz","language_score":0.9525201320648193,"token_count":1310,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__87115873","lang":"en","text":"Eye Surgical procedure has actually ended up being a mainstream approach of vision correction, and also this write-up will certainly describe the advantages and disadvantages of three various methods being used to the medical customer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and also is an eye surgical system which permanently remedies vision by eliminating a slim layer of the cornea. This treatment functions best on individuals with modest to high degrees of nearsightedness (nearsightedness), reduced to moderate degrees of hyperopia (farsightedness) and also astigmatism related to myopia, as well as who have thick corneas. It is the most popular surgical vision improvement method.\nPeople with typical eye sight see things plainly due to the fact that photos are brought into a correct prime focus by the cornea and also lens of the eye. Preferably, the cornea's curvature is equally matched to its length in a typical eye. Individuals with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the things seen are not focused effectively. LASIK modifications corneal form by accurate elimination of corneal cells, and also by doing so remedies the eyes' focusing power.\nThere are, however, threats to LASIK eye surgery.\nThere is a remote possibility of full loss of vision. If this happens, it is typically since the patient had a pre-existing problem which should have averted the surgery to begin with, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. People with huge pupils are likewise bad candidates for LASIK. Dry eye syndrome will be aggravated by this procedure.\nA couple of people whine that they permanently see \"ghost\" photos, have actually obscured vision, lessened contrast and bad evening vision. When LASIK was first presented, 5% of patients had post-operative complaints; nonetheless, refinements in the procedure have triggered this price to drop to much less compared to 1% if LASIK is executed by proficient specialists and patients are correctly screened prior to surgical procedure. If troubles do take place, they can often be resoved by a retreatment.\nFDA has approved LASIK laser eye surgery given that 1998. While there are a great deal of completely satisfied individuals, there are nonetheless no long term studies regarding its effects. Understand the constraints as well as the risks of LASIK eye surgical procedure before you sigh up for the procedure.\nThough much less popular, these tiny implants could enhance vision in individuals with light to modest myopia without the risk of permanent eye damage fundamental in the cells removal method of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to presume a flatter shape. Though slightly much less specific compared to LASIK, they are removeable as well as replaceable, so if the patient has an unforeseen over- or under-correction, the implant could be gotten rid of as well as another of a various size put to acquire the desired correction. The implants lie beside the cornea, so the central aesthetic location is entirely intact and also undamaged, and the strength of the cornea is undiminished, making it a much better alternative for pilots and those that take part in contact sporting activities where eye injury is an opportunity.\nIntacs disagree for severe myopia and also more than minor astigmatism (1.00 diopters), as the cornea can only be extended thus far. If the Intacs are removed, vision returns to its preoperative degree. Other than vision adjustment, Intacs are also made use of to treat keratoconus.\nIntacs are FDA approved and 10 year research studies have exposed no significant issues with Intacs and also very few client grievances; nevertheless, due to the fact that the treatment takes much more training than LASIK, there are less eye surgical treatment clinics providing it. Nevertheless, the Intacs web site provides a listing of professionals in each state, also a couple of in Canada, Europe and also Mexico.\nSince many individuals do not page intend to take the chance of LASIK and also Intacs can not assist those with severe vision problems, intraocular lens implants (IOL) are a new choice authorized by the FDA in 2004 to remedy modest to extreme nearsightedness. The Craftsmen lens, manufactured by Ophtec, is similar to the kind of lens dental implant utilized to recover vision complying with cataract eye surgical treatment.\nThe new IOL, called the Craftsmen, is planned for only patients that have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not replace the all-natural lens, but is placed before it. The main trouble discovered with the dental implant was the stable loss of endothelial cells in the corneas of people who got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are important in keeping the go right here cornea clear. A three-year research study revealed a consistent constant loss of endothelial cells of 1.8 percent a year. At this point, no one can predict whether this loss will certainly continue at the exact same price forever, and even its influence on corneal feature.\nTo decrease long-lasting results of the gadget on the corneal endothelium, the FDA is requiring that the brand-new lenses be labelled to define that they should just be dental implanted in clients whose corneal endothelial cells are thick sufficient to endure small cell loss.\nA lot more serious difficulties were few: retinal detachment (0.6%), cataract advancement (0.6%), as well as corneal swelling (0.4%). The FDA is calling for Ophtec to carry out a five-year follow-up study of its dental implant clients to much better assess the post-surgical incidence of cataract growth, retinal detachment and other sensory conditions.\nThe Craftsmen lens is intended to be a long-term implant.Though it could be eliminated surgically, vision might not always return to exactly what it was prior to obtaining the lens. Because it does not affect astigmatism, clients with this trouble could still need glasses.","domain":"optical_engineering"}
{"url":"https://giki.edu.pk/course/photonics-networks/","date":"2023-06-08T14:52:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655027.51/warc/CC-MAIN-20230608135911-20230608165911-00676.warc.gz","language_score":0.8947327136993408,"token_count":179,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__160979500","lang":"en","text":"|Photonics Networks||Hours: 3 0 3|\nIntroduction to photonics networks, propagation of signals in optical fibers, components, modulation and demodulation, transmission system engineering, client layers of the optical layer, WDM network elements, control and management, network survivability, WDM network design, access networks, photonic packet switching, deployment considerations.\n|Pre-requisites: None||Co-requisites: None|\nHours: XYZ where X = Lecture, Y = Lab, Z = Credit\nAll hours are per week.\n3 Lab hours constitute 1 credit hour\n1 credit hour implies 1 lecture of 50mins per academic week. 16 weeks in total.\nPre-Requisite courses are courses required to be completed before this course may be taken\nCo-Requisite courses are courses required to be taken along with this course","domain":"optical_engineering"}
{"url":"https://www.gponline.com/choosing-digital-slr-camera/article/664103","date":"2018-09-22T17:00:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267158609.70/warc/CC-MAIN-20180922162437-20180922182837-00442.warc.gz","language_score":0.9258589148521423,"token_count":428,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__202194265","lang":"en","text":"A large number of highly technical and supremely capable SLR (single lens reflex) cameras have now entered the consumer price range. Some might think that, because most compacts have a wide zoom focal range, there is no need for the extra bulk of a camera with changeable lenses. Even with an SLR, the zoom replaces many lens changes.\nBut digital SLRs are still worthwhile for the viewfinder, shutter-lag, external flash and performance at high ISO ratings. Here are some points to consider before you buy one.\n- Image quality If you are using a film SLR do not be concerned that switching to digital will mean any loss of quality. Many professionals have switched completely.\n- Changeable lenses It may be possible for you to use your old lenses on a digital SLR made by the same manufacturer, although the effective focal length will be increased.\n- Viewfinder With most SLRs you compose the photograph by looking through the viewfinder rather than a screen on the back of the camera.\n- Shutter-lag The time between pressing the shutter and the picture being taken. Once the bugbear of digital photography, this is all but eliminated on the latest SLRs.\n- External flash If you need this, then an SLR is an absolute must. The latest cameras from Sony and Nikon offer wireless triggering and control of a powerful flash that can be placed anywhere in the room.\n- High ISO rating This is where SLRs come into their own, giving good quality in low light at high ISO sensitivity ratings. I find first-class, smooth results are possible even at ISO 1,000.\n- Dust removal system A great enemy of SLRs, when the lens mount is opened, dust marks on the sensor will appear as huge blotches on pictures. Some SLRs have dust removal systems but nearly all need a precarious clean after a year or two.\nDr Posner is a GP in Newcastle upon Tyne\nNikon D80 - £523\nNikon D40x - £419\nSony alpha - 100 £390\nCanon EOS 400D £437","domain":"optical_engineering"}
{"url":"https://www.surgicalbazaar.co.in/fingertip-pulse-oximeter.html","date":"2023-03-21T11:57:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00613.warc.gz","language_score":0.7301278114318848,"token_count":358,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__151484052","lang":"en","text":"Fingertip Pulse OximeterPulse oximeter to see saturation of SPO2 and Pulse Rate.\nOmron Fingertip Pulse Oximeter\nApprox. Price: Rs 1,300 / PieceGet Latest Price\n|Minimum Order Quantity||50 Piece|\n|Parameter Measures||SpO2 + Pulse Rate|\n|Display Type||Dual Color OLED Display|\n|Display Mode||4 Display Modes|\n|Device Color||White and Blue|\n|Measurement Range||SpO2: 0-100 %|\n|Power Supply||2xAAA Batteries|\n|Resolution||SpO2: 1% PR: 1 bpm|\nContec CMS50N OLED Fingertip Pulse Oximeter by Omron is a premium quality??Pulse Oximeters??from Contec. . All Contec CMS50N OLED Fingertip Pulse Oximeter by Omron are manufactured by using quality assured material and advanced techniques, which make them up to the standard in this highly challenging field. The materials utilized to manufacture Contec CMS50N OLED Fingertip Pulse Oximeter by Omron, are sourced from the most reliable and official Pulse Oximeters vendors, chosen after performing detailed market surveys. Thus, Contec products are widely acknowledged in the market for their high quality.\n- Packaging Details: Quantity price is different","domain":"optical_engineering"}
{"url":"https://cardsharque.com/2022/05/30/mhr-unit-4-light-and-applications-of-optics/","date":"2022-08-15T21:47:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572212.96/warc/CC-MAIN-20220815205848-20220815235848-00412.warc.gz","language_score":0.855292797088623,"token_count":2404,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__3330107","lang":"en","text":"Mhr unit 4 light and applications of optics\nUnit 4: Light and Applications of Optics Intro to optics: types of light, light production, electomagnetic spectrum\nSNC2D Grade 10 Science Physics Test. Physics notes for the Grade 10 Science unit test SNC2D1 Geometric optics – using light rays to determine how light behaves\nGoal Use this summary to review the concepts in Unit 2, Optics. Chapter 4 Many White light is a mixture of many wavelengths of light. (4 Applications of\nGrade 8 Optics – Objectives and Activities •“What is light” lab activity OP8.2 Explore properties and applications of optics-related technologies,\nSNC2P – Science Unit 4 – Lesson 16 Copyright © 2011, Durham Continuing Education Page 2 of 34 Unit 4 – Physics: Light & Application of Optics Overall Expectations By the end of this course, students will: • Analyze how properties of light and colour are applied in technology and the impact of these technologies on society;\nOptics for kids. What is light? Learn what light optics is and how to control it. Light for Kids. Light is produced, controlled, and detected in so many ways around you.\n100 GRADE 8 SCIENCE CURRICULUM GUIDE OPTICS Unit Overview Introduction Applications using the principles of light have resulted in devices that have improved\nLight: Science & Applications Conventional optics generally relies on light which is more reasonable than using the common definition that is based on a unit\nPrinciples and applications of multilayer applications of each member of the CBO unit Principles and applications of multilayer mirror optics for X\nThe LED Wall-Mount White Emergency Light with Adjustable Optics from Lithonia Lighting is ideal for emergency lighting applications like stairways, hallways and rooms.\nOptics Resources Last week I shared with you the resources that I had compiled for my Grade 8 Science Unit: Cells The second of these units is Optics.\nThe video provides interesting information about light, optics, optical engineering and the science behind light. It explores real world applications and new technologies based on light in nanomedicine, space telescopes, invisibility, and solar energy.\nElectricity, Magnetism and Optics by RobertG.Brown Duke University Physics Department Applications of Ampere’s Law\nResources / Application Notes / Optics / Optics Application Examples order to collimate as much light as possible. According to Equation 1.4, applications\nEducational Product Teachers Grades K-12\nOptics for Kids What is Light Light Optics – Synopsys\nMr Clark’s SNC 2P. Search this site. Unit 4 – Applications of Optics. Wednesday October 19 – Properties of Light and Reflection Quiz. Friday Novemenr 4\nModule 1-4, Basic Physical Optics. and recognizing their applications in communication and sensing can Demonstration of light guidance through optical …\nHow does a compound light Compound Light Microscope Optics, Magnification and Polarizing Microscope – discover its use in a wide range of applications\nOptics & Light See What I’m applications of the theory in daily life. Optics Unit Created Date: 4/19/2016 3:15:51 PM\nUnit 4: Light and Optics. In this unit we will continue to study waves with a focus on light. We will begin with an explanation of the concept of image formation\nEducational Product Teachers Grades K-12 they are desirable for space applications. Light, Color, and Their Uses Optics:\nUNIT What is light? and fibre optics (used in communications). Light and Optical Systems. of light? 174 MHR • Light and Optical Systems\nThe Structure Surface Physics Laboratory • Applications of TIR: fiber optics, retro-reflectors, • Wavelength of light 0.4\nvelocity of light inside the material depends on the Altechna has been working with femtosecond optics applications of ultrafast optics are:\nFiber optics is a major building block in the telecommunication infrastructure. • Describe the operation and applications of light-emitting diodes (LEDs)\nUnit Dimension Notes Name Symbol Name in nanometre-scale applications such as (c. 2nd century) wrote about the refraction of light in his book Optics.\npractical applications of refraction and lenses; lenses; locating an image through a converging lens – ray diagrams and discovery; sheep’s eye dissection\nFIBER OPTICS Fiber Optic Light Sources DCR®, and MHR® light sources. KL 1500 LCD for light demanding applications:\nThe Optical Society presents Exploring the Science of Light. Going into Optics or just want to learn more about it?\nIn the first section of Lesson 1, it was stated, “without light, there would be no sight.” Everything that can be seen is seen only when light from that object\nApplications. Laser-Light-LED; In an emissive color measurement, the sample IS the light source. SAMPLING OPTICS:\nPhysics of Light and Optics coherence, ray optics and imaging, the propagation of light in matter, 7.4 Frequency Spectrum of Light\nGrade 8 Science Unit Plan Unit C – Light and Optical Systems (Nature of Science Emphasis) Grade 8 Unit Overview (Alberta) Our understanding of the world is based\n1 Grade 10 Applied Science SNC2P Physics: Light and Applications of Optics. 2 VCE Physics Unit 1. Light and Optics 4.1 Mirrors form images by reflecting\nPolarization Optics Tutorial: Polarizers, When light propagates along the optic axis of crystal quartz, Polarizing Optics and Applications\n1 P a g e GRADE 8 SCIENCE UNIT: OPTICS Chapter 4 Questions Reading Check Answers, p. 134 1. The early Greeks described light as being made up of tiny paticles.\nSNC2D Grade 10 Academic Science Physics Type of Lights and Mirrors. Chapter 10.1—Sources and Nature of Light. Grade 11 Functions and Applications Formula\nExperiment 2 – Microwave Optics; Experiment 2 Visible light has a frequency of the order of 10 14 Hz and The older Gunn diode unit uses a DC power supply\nTeach theories and concepts of light and color. The activities in this guide call for students to experiment with mirrors, lenses and prisms.\nThe Law of Reflection. When a ray of light strikes a plane mirror, the light ray reflects off the mirror. Reflection involves a change in direction of the light ray.\nApplications range guided light in the core and near the core-cladding boundary. In a cylindrical FIBER OPTICS .\nOptics is the cornerstone of photonics systems and applications. We begin our study of basic geometrical optics by examining how light reflects and refracts at\nA20-5 Secondary Optics Design Considerations for SuperFlux AB20-5 Secondary Optics Design Considerations for SuperFlux LEDs light (diverging optics),\nScience Grade 10 Light and Application of Optics\nSample multiple choice questions for light and optics unit.\nLight – Unpolarized light: The atoms on the surface of a heated filament, which generate light, act independently of one another. Each of their emissions can be\nOverview – Light and Application of Optics: PDF : Lesson 1 – Light and Life Did you find what you were looking for?\nexamples of practical applications for these type mirrors … Science In Action 8 Unit C – Light and Optical Systems UNIT TEST 36. An ommatidia is a long tube\nGrade 8 Science Notes and Worksheets Macdonald\nThis tutorial introduces light and optics in physics. Other sections include motion, heat, electricity, magnetism, and modern physics. Types of Light\n11.1 11.2 What is light and how is it produced.notebook 1 May 23, 2012 Unit 4 ‐ Light and Applications of Optics\nObjects absorb, reflect, or transmit light. Light travels in a straight line. You use an arrow called a ray to show the direction it travels. Topic 4.2 119• MHR\nSNC2D Physics – Light and Optics 4 Visible Region of the Electromagnetic Spectrum ! SNC2D Physics – Light and Optics 5 Class Discussion [Application]\nLecture Notes for PHYS 2911 – Optics require physical optics for their explanation and applications. per unit area is called the irradiance of light\nLight and Optics questions for your custom printable tests and worksheets. Scientific Methods and Applications; Social Studies Grade 4 Light and Optics\nLight & Sound : Links Light. Laser Game Sun, Light & Shadows Light & Dark How We See Light Sources & Light Rays Light Sources & Light Rays Questions (test yourself)\nOptics for kids. What is light? Learn what light optics is and how to control it. Light for Kids. Optics for Kids\nGrade 10 Applied Science SNC2P ppt download\nPhysics4Kids.com Light & Optics Introduction\n4.1 What is light and how is it produces.notebook 1 May 14, 2012 Unit 4 ‐ Light and Applications of Optics\nGrade 8 Science Notes and Worksheets. Bill Nye video on Light Optics Unit 4 Review Documents (Ch. 10, 11, and 12 together)\nPractical applications of optics are found in a variety of technologies and everyday In physical optics, light is considered to propagate as a Optics (4 ed.).\nIn photonic applications light can be considered to cover the Pertaining to optics and the phenomena of light. of radiant energy whose quantum unit is\nGrade 8 Science Unit 2: Optics Chapter 4: Many properties of light can be understood using a wave model of light.\nUNIT 4 Light and Applications of Optics Topic 4.1: What is light and how is it produced? Topic 4.2: How does light interact with objects to give\nThe technology of generating and harnessing light and other forms of radiant energy whose quantum unit is light sources, fiber optics, Low-Light Applications.\nExperiment 2 Microwave Optics UCLA Physics\nLight and Optical Systems Quia\nThe Optical Society presents Exploring the Science of Light. Optics “science of sight and light” is from 1579; Medical Applications EXPLORE. Reflection EXPLORE.\nFourth Grade (Grade 4) Light and Optics questions for your custom printable tests and worksheets. In a hurry? Browse our pre-made printable worksheets library with a\nUshio MHR-250N 250W Fiber Optic Metal Halide Lamp. task lighting, fiber optics and replacement bulbs designed for fiber optic and light pipe applications.\nSNC 2P – Unit 4 – Light and Applications of Optics. To analyze the properties of light and colour. To investigate the behaviour of light in flat and curved mirrors.\nFourth Grade (Grade 4) Light and Optics Questions for\nOptics Celebs Optics For Kids\nGrade 8 Science Unit 2 Optics NLESD\nScience In Action 8 Unit C Light and Optical Systems\nFIBER OPTICS University of Sydney School of Physics","domain":"optical_engineering"}
{"url":"https://2022.beckmans.college/en/product-design/elias-berg","date":"2023-09-23T15:09:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506481.17/warc/CC-MAIN-20230923130827-20230923160827-00704.warc.gz","language_score":0.94013911485672,"token_count":231,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__93272502","lang":"en","text":"Light hits surfaces, is reflected, and bounces away. This organic solar cell lamp utilises and gathers the energy from light sources that would otherwise have bounced off into nothingness, in order to spread an atmospheric light when amber fades the sky.\nI have created a lamp that paves the way for how we can incorporate a new generation of solar cells into our everyday objects. Together with solar cell researchers at Epishine, I have built a system for integrating organic thin-film solar cells into design products.\nThe system is made up of screens that protect the solar cells, these screens can be put together in many constellations. I have considered the solar cells as a material in themselves, and integrated them into my design as a central form element.\nWith this project, I want to participate in the pursuit of a more sustainable and circular society by taking responsibility as a designer through value-driven methods with a view to apply sustainable innovations to real products. I see an opportunity to show the design world how far we have progressed, and above all, in what direction we are heading.","domain":"optical_engineering"}
{"url":"https://photodanielm.blogspot.com/2019/","date":"2020-01-23T08:36:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250609478.50/warc/CC-MAIN-20200123071220-20200123100220-00099.warc.gz","language_score":0.9420547485351562,"token_count":1277,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__136424605","lang":"en","text":"After all what we may like the most in photography is going out and have pleasure doing some pictures with a compact well-designed camera body and lens combination (which should be also good looking!). Are Olympus the only manufacturer does nice and refine photo equipment? No for sure but they have their own signature for a long time since the event of the famous Pen analog series.\nAnd we are speaking about compactness first which a paramount quality for photographers on the go. Small cameras at first but also small lenses to be coherent with the concept. And the Micro Four Third sensor format is may be the only one that can guaranty that without letting down any technological (automated) advancement. If you are speaking about other sensor formats like the 24 X 36mm or APS-C, you cannot put aside the fact that their optics are often large and heavy comparatively from the equivalent MFT ones.\nAnd how about the image quality of the Micro Four Third format? I think we have reached an MFT sensor development that can now deliver the quality level needed in most of the general photographic situations. Yes, in specific cases the larger formats (especially the medium ones) are still doing an outstanding job but we can leave them to the few pros and enthusiasms that can afford and justify their use. What is important is what you do with your pictures and what final purpose you intend with. Even for the fairly large print (like 13X19 inches or A3 format), a modern MFT format sensor will fulfill the task nicely if your picture-taking parameters are correctly set.\nAnd what about using a second generation (16MP sensor) like we find into the Olympus OM-D E-M5 Mark II considering that a third itineration (Mark III w/20MP sensor) is already available on the market? Why not since the E-M5 Mark II is still a remarkable photographic camera device, very well built and designed for an everyday use under many various (and adverse) picture-taking conditions. The Olympus OM-D E-5 Mark II is also a mature product that have been updated a few times. For sure we are assisting to its last days of front selling life but with Olympus, you never know when it will be really no more available.\nThe Olympus M.Zuiko ED 14-150mm f4-5.6 II zoom lens is a kind of extreme optic that can be used for all-around photographic purposes. It is a compact design and construction along with a maximum 150mm focal length giving a six-time magnification compare to our naked eyesight. At its widest 14mm focal length, the Olympus zoom lens can fulfill many proximate photographic tasks and can perform panoramic views. With a very modest maximum variable aperture of F4-5.6, the M.Zuiko ED zoom lens is for sure a less flexible tool when you are facing low light situations or moving subjects. In those cases, you may rely on a higher ISO setting and on an internal camera body stabilization system (if available) with a higher deep of field, we must add.\nThe zoom ring is fairly large and have a good tempering turning resistance. The focusing ring can be reached easily and don't turn too freely although it is \"by-wire\". The Olympus M.Zuiko ED 14-150mm II zoom lens is not part of the Olympus Pro line of optics but it has the splash proof feature which can be a great help when using the lens in adverse conditions (providing that the camera body have the same characteristic). A dedicated bayonet mount lens hood is furnished with the lens which is always appreciated by the owner who have already spent good money to get the optic. The 58mm filter accessory size is moderated and allows you to buy good protection filter or special effects filters if you wish to do so.\nAll the official specifications regarding the Olympus M.Zuiko ED 14-150mm F4-5.6 II are here.\nIn daylight or well light contexts, the Olympus M.Zuiko ED 14-150mm II is handy optic especially if you couple it with a camera model such as the Olympus OM-D or Pen series which are featuring internal sensor stabilization capability. Having a fast access to bigger telephoto setting give to the zoom lens a greater flexibility that prevent continuous permutation between different lens models and that can be hazardous in many circumstances. Even more it is a faster optic to operate when you are framing your subject. At its widest focal length of 14mm, you are reaching the upper limit of a \"real\" wide angle lens with 75 degrees of angle of view.\nDoing close photography is possible with the Olympus M.Zuiko ED 14-150mm II considering its high magnification capability although you have to respect a minimum distance between you and your subject of half a meter (1.6 ft). If you are expecting to take pictures of regular size objects like flowers, the Olympus M.Zuiko ED 14-150mm II will allow you to get very interesting results and again its versatility will be appreciated. It is not a \"macro\" intended optic and the Olympus M.Zuiko ED 60mm F2.8 or ED 30mm F3.5 macro premium lenses should be your best choices to do such specialized and small subjects.\nHaving worked with the Olympus M.Zuiko ED 14-150mm II zoom lens for some table top subjects has giving me the opportunity to check the image quality output of the optic in a more optimum picture taking condition in using a low ISO and having the camera tripod mounted. And this M.Zuiko ED zoom lens is offering usual Olympus optical \"standard\" lens quality level ( acknowledging that the Olympus Pro lenses are still their best products in that sense). Color rendition, contrast, image definition are good and on average compare to their less focally stretched standards zoom lenses.\nIf you are a photographer that is bringing your camera almost everywhere in the city, on travel, in your surrounding or doing outdoor trecking, the Olympus M. Zuiko ED 14-150mm II should be a serious lens option to consider for its versatility and its image quality. It is compact, well built and ready to cope with almost any kind of subjects. A very pleasant lens mate.","domain":"optical_engineering"}
{"url":"https://positivepix.net/2021/07/28/more-105mm-photos/","date":"2023-12-10T07:54:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101282.74/warc/CC-MAIN-20231210060949-20231210090949-00744.warc.gz","language_score":0.9767560362815857,"token_count":176,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__170278894","lang":"en","text":"I was out early this morning, while the light was still soft, making images in the garden of a home where we are staying. These are some of the images I made. All were made using the Nikon Z6 mirrorless camera with the newly-released Nikon 105mm f/2.8 S lens. This lens is quite sharp. It’s reputed to be the sharpest 105mm lens Nikon has ever made, and they’ve made some legendary lenses in that focal length. I’ve owned several over the years and I can’t disagree with that statement. In addition, the lens is surprisingly light for its size and it operates very smoothly.\nThese lenses are hard to get right now, due to a computer chip shortage affecting the industry. If you can get one of these lenses, you won’t be disappointed.","domain":"optical_engineering"}
{"url":"https://www.all2gan.eu/attolight-ag","date":"2023-12-10T23:52:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102697.89/warc/CC-MAIN-20231210221943-20231211011943-00228.warc.gz","language_score":0.8950676321983337,"token_count":505,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__99893143","lang":"en","text":"Attolight AG provides cathodoluminescence (CL) -based solutions for semiconductor in-line defect inspection and high-end material research in industrial R&D and academia.\nAttolight AG is an emerging leader in defect inspection for advanced semiconductor materials and devices using cathodoluminescence spectroscopy. The company designs and manufactures automated solutions for semiconductor in-line defect inspection and high-end material research tools for industrial R&D and academia. Attolight's core expertise lies in the application of quantitative cathodoluminescence (q-CL), a non-destructive characterization method that produces spectroscopic data at the nanoscale and provides a deeper understanding of the structure of materials.\nThe company's technology has a wide variety of applications in different areas such as reliability and performance analysis of LEDs, GaN power transistors, deep UV emitters, lasers, solar cells, and biosensors. The company has a global presence with systems in Europe, Asia, and North America, and is headquartered at the EPFL Innovation Park in Lausanne (Switzerland). Attolight AG offers a wide range of products from CL add-ons for TEM to a SEM-CL multi-spectroscopies platform and in-line solutions. On the SEM-CL platform, two analysis modes are proposed: continuous and time-resolved. The continuous mode is mainly used for the identification of the composition, dopants, defects... in materials while the time-resolved mode allows to study the dynamics of electronic recombination. This mode requires a time-resolved detector such as a streak camera.\nThe company designs and manufactures automated solutions for semiconductor in-line defect inspection and high-end material research tools for industrial R&D and academia.\nRole in the project\nAttolight is involved in two complementary tasks centered around the characterization of dislocations and other material defects:\n- Exploration of analytical & intrinsic aspects of dislocations,\n- Enable fab-based near-line analytical characterization during R&D, ramp-up & production.\nATT performs CL with two main goals in mind:\n- Threading dislocations type and density in GaN-on-Si\n- Point defects nature and clustering behavior characterization\nBuilding on the threading dislocations results ATT will attempt to industrialize this application on its Säntis full wafer tool to enable large scale wafer inspection.","domain":"optical_engineering"}
{"url":"https://www.redi.co.in/sales@redi.co.in","date":"2023-11-30T10:54:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100184.3/warc/CC-MAIN-20231130094531-20231130124531-00336.warc.gz","language_score":0.9185864329338074,"token_count":234,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__239993856","lang":"en","text":"To present a STEREOSCOPIC MOTION PICTURE, two images are projected superimposed onto the same screen through CIRCULAR POLARIZING FILTERS of opposite handedness. The viewer wears eyeglasses which contain a pair of analyzing filters (circular polarizers mounted in reverse) of opposite handedness. Light that is left-circularly polarized is blocked by the right-handed analyzer, while right-circularly polarized light is blocked by the left-handed analyzer. The result is similar to that of stereoscopic viewing using linearly polarized glasses, except the viewer can tilt his or her head and still maintain left/right separation (although stereoscopic image fusion will be lost due to the mismatch between the eye plane and the original camera plane)\nThe UNIPOAR 3D SYSTEM for cinemas is a polarized 3D system, that is based on the projector presenting a alternating segments of circularly polarized material. Mounted in front of the projector lens, this filter is synchronized to the projected images, giving each frame a polarization perpendicular to the previous one, which can be viewed with polarized 3D glasses.","domain":"optical_engineering"}
{"url":"http://www.armoredoptic.com/en/h-col-101.html","date":"2024-03-01T12:10:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00222.warc.gz","language_score":0.9222200512886047,"token_count":304,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__111915068","lang":"en","text":"Jiangsu Amde Optoelectronics Technology Co., Ltd. plans to invest a total of 200 million yuan to build an excellent leader in special optical cables and connectors in China; the company develops, produces and sells optical communications: special optical cables, armored optical cables and supporting accessories. The main products are: various types of optical fibers, optical cables, 5G base station remote optical cables, field optical cables, metal protection tubes, connectors, optical fiber sensing products and equipment. The company's products have been successfully applied to the optical cable and connector components of the LSSON 12th Five-Year Key Project of the Chinese Academy of Sciences, and have been successfully applied in subways and nearly 100 pipe gallery projects in nearly 40 cities in China! The products produced by the company have been widely used in telecommunications, mobile equipment room construction, integrated wiring of buildings, radio and television networks, national defense communications and other fields, and some products have been introduced into various large-scale civil engineering through the vast number of sensor equipment manufacturers. On-line monitoring of temperature and strain sensing in bridge construction, pipe gallery, power system and subway tunnel; the company continues to integrate synergy in \"special optical cable - armored optical cable - optical fiber connector\" with years of business accumulation in the field of armored optical cables Advantages, improve the overall competitiveness of products such as optical cables and connectors by continuously improving the performance indicators of each product link. The company's comprehensive strength in the optical communication industry has steadily improved.","domain":"optical_engineering"}
{"url":"https://raminfahimi.com/publication/vo/","date":"2023-02-09T01:42:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501066.53/warc/CC-MAIN-20230209014102-20230209044102-00338.warc.gz","language_score":0.9052402377128601,"token_count":201,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__62751207","lang":"en","text":"We consider the problem of unsupervised camera pose estimation. Given an input video sequence, our goal is to estimate the camera pose (i.e. the camera motion) between consecutive frames. Traditionally, this problem is tackled by placing strict constraints on the transformation vector or by incorporating optical flow through a complex pipeline. We propose an alternative approach that utilizes a compositional re-estimation process for camera pose estimation. Given an input, we first estimate a depth map. Our method then iteratively estimates the camera motion based on the estimated depth map. Our approach significantly improves the predicted camera motion both quantitatively and visually. Furthermore, the re-estimation resolves the problem of out-of-boundaries pixels in a novel and simple way. Another advantage of our approach is that it is adaptable to other camera pose estimation approaches. Experimental analysis on KITTI benchmark dataset demonstrates that our method outperforms existing state-of-the-art approaches in unsupervised camera ego-motion estimation.","domain":"optical_engineering"}
{"url":"http://project.pan-starrs.ifa.hawaii.edu/public/","date":"2017-08-20T11:23:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886106465.71/warc/CC-MAIN-20170820112115-20170820132115-00113.warc.gz","language_score":0.935451090335846,"token_count":181,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__156739226","lang":"en","text":"Pan-STARRS -- the Panoramic Survey Telescope & Rapid Response System -- is an innovative design for a wide-field imaging facility developed at the University of Hawaii's Institute for Astronomy.\nThe combination of relatively small mirrors with very large digital cameras results in an economical observing system that can observe the entire available sky several times each month.\nThe prototype single-mirror telescope PS1 is now operational on Mount Haleakala; its scientific research program is being undertaken by the PS1 Science Consortium - a collaboration between ten research organizations in four countries,\nA major goal of Pan-STARRS is to discover and characterize Earth-approaching objects, both asteroids & comets, that might pose a danger to our planet.\nIts vast database is also ideal for research in several other astronomical areas, particularly those which involve an aspect of time variability. See PS1SC key projects for examples.","domain":"optical_engineering"}
{"url":"http://www.3dtvwatcher.co.uk/glasses-free-3d-is-the-future-2994/","date":"2013-06-20T01:31:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368710006573/warc/CC-MAIN-20130516131326-00052-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9548220038414001,"token_count":340,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__203799401","lang":"en","text":"The use of 3D glasses has always been thought to be the main barrier in the mainstream acceptance of tridimensional televisions.\nDespite companies such as Samsung and Sony developing better 3D technology using more advanced glasses, other companies have opted to find ways to use 3D TVs without the use of glasses.\nAt the moment, there is a technology that relies on the use of webcams built into the TV sets which tracks the head and eye movement of the viewers and is able to adjust the image on the set accordingly. Another method of glasses-free technology is being developed by a certain Hungarian company.\niPoint 3D is currently working on, what it calls, the 3D TV Box which converts 3D video data into the correct signals needed by autostereoscopic displays to allow viewers to watch 3D without glasses.\nThis could potentially be a better method of delivering glasses-free 3D however at the moment all forms of specs-free technology are unable to deliver a picture that is as clear as 3D technology which requires the viewers to wear tridimensional eyewear.\nThe no-glasses 3D technology also ties viewers down to sitting at a specific height and position in order to see the tridimensional effect.\nThis is another aspect preventing the technology from becoming popular. Toshiba has a specs-free 3D TV on sale at the moment which uses a lenticular lens to produce different images that can be seen at different angles.\nHowever, this option does not produce as much of an immersive experience that other 3D TVs that require glasses provide, added to that the price tag, and it is unsurprising that it has taken off.","domain":"optical_engineering"}
{"url":"https://writetogether.space/posts/scribblings/pictures-pt11","date":"2022-05-28T04:20:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663012542.85/warc/CC-MAIN-20220528031224-20220528061224-00761.warc.gz","language_score":0.9613815546035767,"token_count":472,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__218186036","lang":"en","text":"Days to COVID Vaccine: 4\nExercise: Gardening, Home improvement\nPiano Song of the day: Stay with me (getting there at 80%)\nI was awake at 6:30 this morning, should we buy the house we looked at yesterday or not, arrggghhhh!!!!!!\nWe lost the 18-55mm lens and if you know anything about DSLR's, there is a reason that the kit lens that comes with the camera is this one. It's because it is a very useful lens. 50mm is about how the eye sees things and any number less than that is wider. This gives you a lot of flexibility, except for zooming in on a distant object, which is where our 555-250mm lens comes in. The smaller the number the wider it is, the larger the number the more zoom you have.\nSo I needed to replace the 18-55mm because we really did need to go wider than 55mm. I was researching a replacement when a photographer friend suggested that we get what he has which is a 18-135mm lens. This gives you everything from wide (18mm) to some zoom (135mm) without having to change lens. Which makes it a great lens for everyday use. You can zoom out to get a whole room in a picture and you can zoom in to get a close up on a single individual without changing lens.\nOf course, different lens do different things and you can get different effects from them. YOu know how they say the camera adds 10lbs, well they are right, if you are using a zoom. You can get the same shot from further away that you can from standing near the subject just by using a zoom lens, but a couple of things happen.\n- The camera adds 10lbs. That is everything gets stretched a little\n- The distance between the subject and everything that is in front of them gets compressed. The distant mountain, is now right behind them\n- The depth of field can get narrower, which is a good excuse to use a zoom when you need this.\nAnyway, we brought the 18-135mm lens and it is now our go-to lens that is mounted on the camera as the default lens to shoot with unless we need a good telephoto or something else special.","domain":"optical_engineering"}
{"url":"http://www.businessinfomalaysia.com/the-advanced-techniques-in-cataract-surgery.html","date":"2024-02-26T01:08:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474649.44/warc/CC-MAIN-20240225234904-20240226024904-00160.warc.gz","language_score":0.9433732032775879,"token_count":562,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__100761745","lang":"en","text":"Cataract surgery is a common and highly effective procedure that is used to remove cloudy lenses from the eye and replace them with clear, artificial lenses. The procedure has come a long way in recent years, and there are now many advanced techniques available to improve the outcome of surgery and make the experience more comfortable for patients.\nOne of the most significant advancements in cataract surgery is the use of femtosecond laser technology. This technology uses a laser to create a precise and accurate incision in the eye, which reduces the need for handheld instruments and increases the precision of the procedure. This results in a faster recovery time and a reduced risk of complications.\nAnother advanced technique in cataract surgery is the use of toric intraocular lenses (IOLs). These lenses are specially designed for patients with astigmatism, which is a condition that causes distorted vision. Toric IOLs can correct astigmatism, reducing the need for glasses or contact lenses after surgery.\nPhacoemulsification is another advanced technique that is commonly used in cataract surgery. This technique uses ultrasound energy to break up the cloudy lens, allowing it to be removed through a small incision. This results in a faster recovery time, less inflammation, and less risk of complications than traditional techniques.\nIn addition to these techniques, there are also many options for the type of intraocular lens (IOL) that can be used during cataract surgery. There are mono-focal IOLs, which correct distance vision, and multifocal IOLs, which correct both distance and near vision. Additionally, there are also accommodating-accommodating IOLs which help the eye adjust to different focus distances.\nAnother advanced technique that is gaining popularity is the use of small incision cataract surgery (SICS). In this procedure, the surgeon uses a small incision, usually less than 2.2 mm, to remove the cataract. This results in less trauma to the eye, less inflammation, and a faster recovery time.\nIn conclusion, cataract surgery is a common and highly effective procedure that has undergone significant advancements in recent years. The use of femtosecond laser technology, toric intraocular lenses, phacoemulsification, and many options of intraocular lenses, make the procedure more precise, comfortable, and with a faster recovery time. Additionally, the use of small incision cataract surgery (SICS) is gaining popularity due to its advantages of less trauma to the eye, less inflammation, and a faster recovery time. These advanced techniques, along with the expertise of the surgeon, can make a significant difference in the outcome of the surgery, and in the patient’s vision quality postoperatively.","domain":"optical_engineering"}
{"url":"http://juniorinventors.com/blog/2016/02/23/a-look-into-your-eyes/","date":"2017-10-21T17:44:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187824824.76/warc/CC-MAIN-20171021171712-20171021191712-00454.warc.gz","language_score":0.955646812915802,"token_count":482,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__130822248","lang":"en","text":"Glasses have been designed to help our eyesight and protect our eyes from the sun. But did you ever wonder why some people have to wear glasses to see properly while others don’t? Before we can figure that out, we need to know how the eye works. First, let’s take a look at the retina, which is the part of the eye that reacts to the light of anything you look at and sends all this information to your brain. Once the information reaches your brain, it can transform this into the image that you actually see! The retina has a curved surface because your eyes are round in shape and when you actually look at something, three things need to happen:\n- The image you see must be reduced in size to fit onto the retina.\n- The scattered light must come together and come into focus at the surface of the retina.\n- The image must be curved to match the curved surface of the retina.\nThe eye also has other parts that work together and interact to make sure that all of these things happen! Two of the main ones are:\n- The pupil, which is almost like a little peep hole in the middle of your eye that allows all of the light into the back of your eye.\n- The cornea, which could be considered as the front window of your eye and acts as a transparent cover for your pupil.\nThese two parts work together in order to focus the image of what you are looking at onto your retina. There are many reasons why people might need to wear glasses – the cornea may not be shaped properly, causing blurred vision, or the surface of the cornea may not be smooth and lead to distortion of vision.\nTypes of vision distortion include myopia (nearsightedness), which happens when people can’t see very far ahead and distant objects appear blurry. Hyperopia (farsightedness) happens when people can’t focus properly on things that are close to them. Different types of glasses or lenses are needed to correct these and bring sight back to normal.\nInquiry – Digging Deeper\nDo you wear glasses or lenses? If so, do you know why you need to wear these? Here’s a fun online eye test that you can do in class and get a better idea of what type of vision you have!","domain":"optical_engineering"}
{"url":"https://www.aliloca.com/en/category/camera-therm-65","date":"2023-11-29T16:07:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100112.41/warc/CC-MAIN-20231129141108-20231129171108-00125.warc.gz","language_score":0.941215455532074,"token_count":215,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__179625247","lang":"en","text":"What you should know about Thermal Camera\nA thermal camera is a device that can recreate an image from the recorded body temperature variations. The image is retranscribed on a screen by forming different colours according to the temperature recorded. The colour is random and does not correspond to anything in particular. This device works most of the time with only one beam. There are two types of thermal cameras:\n- With an uncooled infrared sensor that provides less accurate image quality.\n- With a cryogenically cooled infrared sensor somewhat similar to photographic sensors but for the infrared range.\nThermal cameras are used in many areas, one of the most effective being in the rescue of people who are trapped under avalanches or debris from earthquakes, for example. Thermal infrared is also useful in the building industry to detect possible overheating or electrical problems, in the military to detect suspicious individuals at night (e.g. poaching), for health purposes (high fever at airports), to study nocturnal fauna, etc.\nWe talk about Construction Equipment\non our blog section.","domain":"optical_engineering"}
{"url":"https://www.movingbeyondthepage.com/online/samplelesson.aspx?unitID=461&lessonPartID=290897","date":"2023-12-04T07:43:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100525.55/warc/CC-MAIN-20231204052342-20231204082342-00108.warc.gz","language_score":0.9410386085510254,"token_count":188,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__175180584","lang":"en","text":"Lesson 2: Light\nOver the past few days, you have learned about the special characteristics of light. Review the facts about light in the \"Things to Know\" section. Be sure you understand the difference between light colors and paint colors. Can you explain the relationship between light and other objects, whether they absorb, reflect, or refract light?\nQuestions to Discuss\n- How are rainbows made?\n- How are paint colors and light colors different?\n- What is the difference between reflection and absorption?\n- What is refraction? (The bending of light as it travels through a transparent surface.)\nThings to Review\nGo over the steps on the scientific method with your child. Review the difference between reflection and absorption of light. Review the colors made when light is mixed: cyan, magenta, and yellow. Discuss that light travels in a straight line, and when a light is blocked, shadows form.","domain":"optical_engineering"}
{"url":"http://www.thetechfixr.com/what-is-the-sharpest-aperture-updated/","date":"2022-09-26T16:30:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334912.28/warc/CC-MAIN-20220926144455-20220926174455-00502.warc.gz","language_score":0.9350886344909668,"token_count":2751,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__231523946","lang":"en","text":"There is no definitive answer to this question since it depends on the type of camera and lens being used. However, some experts suggest that the aperture is the sharpest when it is set to its widest setting. If a lens has a variable aperture, such as an F-stop, then the aperture can be made to narrower or wider, but the angle of view will be reduced accordingly.\nGet started here\nThere are different types of cameras that have different types of apertures. Aperture is the size of the hole in the camera that lets light in. There are three types of apertures: f-stop, shutter speed, and ISO.\nAperture is important because it affects how much light comes into the camera. The smallest aperture is f-stop 1.4 and the largest aperture is f-stop 16. Aperture affects how blurry the picture is. If you want a clear picture, you need to use a smaller aperture.\nThe shutter speed is how long the camera shutter is open. The faster the shutter speed, the faster the picture will be taken. The shortest shutter speed is 1/1000 of a second and the longest shutter speed is 30 seconds. If you want to freeze the action, you need to use a longer shutter speed.\nISO is how sensitive the camera is to light. The lower the ISO number, the more sensitive the camera is to light. The ISO number can be between 100 and 12,800. If you want to take a picture in low light, you need to use a low ISO number.\nHow Do I Find the Sharpest Aperture\nThe sharpest aperture on any lens is generally about two or three stops from wide open. This rule of thumb has guided photographers to shoot somewhere in the neighborhood of ƒ/8 or ƒ/11 for generations, and this technique still works well. Generally, this means that if you want to shoot at a sharp aperture, you should set your lens to ƒ/8 or ƒ/11. However, what if you want to shoot at a particular aperture and you don’t know what ƒ/8 or ƒ/11 is? In this case, you can use the aperture diaphragm on your camera to figure out what the sharpest aperture is. To do this, you will need to know the f-number of your lens. The f-number is the number that is written on the lens barrel next to the aperture. The f-number is also represented by the letter “f”.\nTo find the f-number of your lens, you will need to take your lens off of your camera and look at it. The f-number will be printed on the lens in either Roman numerals or Arabic numerals. The f-number of most lenses is around ƒ/5.6 or ƒ/8. Therefore, if you want to shoot at a particular aperture and you don’t know what ƒ/8 or ƒ/11 is, you can use the aperture diaphragm on your camera to figure out what the sharpest aperture is. To do this, you will need to set the aperture on your camera to ƒ/5.6 or ƒ/8, and then take a picture. If the aperture is set to ƒ/5.6, then the picture will be in the range of ƒ/8 to ƒ/11. If the aperture is set to ƒ/8, then the picture will be in the range of ƒ/11 to ƒ/16. If the aperture is set to ƒ/11, then the picture will be in the range of ƒ/16 to ƒ/22. If the aperture is set to ƒ/16, then the picture will be in the range of ƒ/22 to ƒ/32. And if the aperture is set to ƒ/22, then the\nDoes Aperture Affect Sharpness\nWhen it comes to sharpness, aperture has two major effects. The first is that the depth of field is increased, which means that objects that would appear blurry are now rendered sharp. Secondly, a smaller aperture reduces aberrations, which can cause the image to appear soft even at the plane of focus.\nA higher f-number, or smaller aperture, can both result in sharper images. However, the increased depth of field does come with a trade-off: the image may appear blurry in some areas. On the other hand, a smaller aperture can reduce the amount of aberrations in the image, which can lead to a more refined and image-look that is often perceived as being softer. Ultimately, it depends on the situation and what the photographer is looking for.\nWhy Is F8 the Best Aperture\nF8 is a good starting aperture because it provides a medium shutter speed. This means that it keeps blurring at bay, which is important for beginner photographers who may not be used to taking pictures with a lot of motion.\nWhat Is the Sharpest Aperture for Portraits\nAperture, or the size of the hole in a camera lens that allows light to enter, affects the amount of light that is captured by the camera sensor. Aperture is measured in f-stops, with the smaller the number the wider the aperture. Aperture is used to control the amount of light that enters the camera, and it is important to choose the aperture size that will give you the desired effect in your photograph.\nWhen shooting portraits, it is important to choose an aperture that will give the desired effect in the final photograph. Aperture options that are good for portraits include f/2 to f/2.8. If you’re shooting two people, use f/4. For more than two people, shoot at f/5.6.\nHow Do I Get Super Sharp Photos\nThere are a few things you can do to get super sharp photos:\nSet the ISO to a higher number.\nUse a slow shutter speed.\nUse a high ISO in dark environments.\nEnable Auto ISO.\nHold your camera steady.\nFocus carefully on your subject.\n7. avoid using flash in dark environments.\nWhat F Stop Is the Best\nWhen choosing a lens for photography, it is important to consider what the photograph will be used for. For macro photography, a wider aperture is best to ensure that all elements of the scene are in focus. Aperture choices for macro photography range from f/1.4 to f/4. The best aperture for a particular photograph depends on the subject matter and the camera settings.\nIs Higher Aperture Sharper\nSmaller apertures (f/2-4) et in more light, making the image on the camera’s sensor sharper. However, as the aperture gets smaller, the lens becomes less able to collect light and produce a bright image. This is why a lens that is at its widest aperture (f/5.6) s usually less sharp than one that is at its smallest (f/22). As the aperture gets wider, the lens is able to collect more light and produce a brighter image, resulting in a sharper image.\nWhy Are My Pictures Not Sharp\nYour pictures may be blurry because the autofocus system is not working correctly. The autofocus system helps your camera to focus on the subject by using the camera’s sensors to detect the subject’s focus. If the autofocus system is not working correctly, your pictures may be blurry because the camera cannot detect the subject’s focus. To fix this problem, you can try to adjust the autofocus system or try to move the subject closer to the camera.\nIf your pictures are blurry because of the depth of field, you may not have focused the camera correctly. Depth of field is the area of the picture that appears in focus. You can adjust the depth of field by moving the lens of the camera. If you do not have a lens cap on the lens, you may need to adjust the focus each time you take a picture. If you have a lens cap on the lens, you may need to adjust the focus each time you take a picture. To fix this problem, you can try to adjust the depth of field or try to move the subject closer to the camera.\nIf your pictures are blurry because of the shutter speed, you may not have been fast enough to take the picture. The shutter speed is the amount of time that the camera takes to take a picture. To fix this problem, you can try to adjust the shutter speed or try to move the subject closer to the camera.\nWhat Is the Best Aperture to Use\nUse a lens with a maximum aperture of f/2.8 or wider to let in as much light as possible.\nSlow down the shutter speed to reduce the amount of motion in the image and increase the chance of getting pinpoint stars.\nIncrease the ISO to make the image brighter.\nOpen up the aperture to increase exposure.\nTake the photo.\nHow Do I Take Sharp Portraits\nWhen taking portraits, use the sharpest aperture that your camera can handle. This will give you the clearest, most detailed photos.\nTo take sharp portraits with your camera, switch to single point autofocus and lower your ISO. This will help to reduce the noise in your photos and make them more clear.\nIf you are using a lens that is not particularly sharp, you can try to get a better lens. You can also try to remove lens filters, which will also help to improve the sharpness of your photos.\nYou can also check the sharpness of your photos on your LCD screen. Be sure to use a tripod when taking portraits so that your photos will be more stable.\nFinally, make sure to practice taking portraits so that you can get the best possible results the next time you need to take a photo of someone. Use 8th grade English when writing your article.\nIs F8 the Sharpest Aperture\nThe sharpest aperture is usually f/8.\nIf you’re shooting flat subjects, the sharpest aperture is usually f/8.\nMy lens reviews give the best apertures for each lens, but it is almost always f/8 if you need no depth of field.\nIf you want to shoot in low light, you’ll need to use a higher aperture.\nAperture affects depth of field.\nAperture also affects how much light is let in.\nAperture affects how blurry your photo will be.\nAperture also affects how much background you’ll see.\nIf you want to take a picture of a person, you’ll need to use a wider aperture.\nIs a Lower F Stop Better\nWhen you take a picture, your camera’s lens focuses light onto the sensor, which captures the image. The lens can have a wide variety of settings, including f-stops, that determine how much light is allowed into the camera.\nAperture affects both the amount of light that enters the camera and the depth of field. The lower the f-stop, the more light is allowed in, but the background will be blurry. Increasing the f-stop will result in a lesser amount of light being allowed in, but the background will be more in focus.\nIs F8 Good for Portraits\nF8 is a good default aperture for portraits.\nYou don’t need to use a lot of aperture to achieve good portraits with F8.\nF8 gives you enough depth of field to get everything in focus.\nF8 is a good default aperture for portraits because it gives you a good amount of depth of field.\nF8 is a good default aperture for portraits because it is easy to use.\nWhy Is Aperture Called F Stop\nThe ‘f’ in ‘f stop’ stands for ‘focus.’ The number following it is a fraction of the focal length. So, to calculate the size of your aperture at a certain f-stop, divide the focal length by the fraction. For example, if you have a lens with a focal length of 100mm, and you want to shoot at an aperture of f/8, the ‘f’ in ‘f stop’ would stand for ‘8,’ and the number following it would be 0.8, or 8/100.\nWhat Does F5 6 Mean on a Camera\nAn f-stop is a number that tells the camera how much to reduce the light when taking a picture. The smaller the number, the more the light will be reduced. So, an f5 setting would reduce the light by 50%. An f8 setting would reduce the light by 80% (more than twice as much).\nLast but not least\nMany experts believe that the aperture is the sharpest when it is set to its widest setting. This is because the angle of view is reduced, making the image appear more focused.","domain":"optical_engineering"}
{"url":"https://veteranjobs.net/job-descriptions/optical-instrument-assembler-job-description","date":"2023-09-27T01:06:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510238.65/warc/CC-MAIN-20230927003313-20230927033313-00351.warc.gz","language_score":0.6983479857444763,"token_count":274,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__124369198","lang":"en","text":"Optical Instrument Assembler\nResponsible for assembling or installing optical instruments, including gunsights, telescopes, and level transits. Cleans parts, adjusts, and coats elements according to specifications.\n- Assemble structural and mechanical parts of instrument.\n- Read and interpret drawings and blueprints.\n- Clean parts using tissue or cleaning solution.\n- Use compressed air device to aid in cleaning.\n- Cement multiple lens assemblies.\n- Position element in mounting seat of instrument housing.\n- Insert and secure locking ring in housing.\n- Apply cement to rings.\n- Cut, grind, and polish eyeglasses, contact lenses, or other precision optical elements.\n- Determine distance of test target using trigonometric formulas.\n- Utilize oscilloscopes and collimators to connect instruments to test devices.\n- Sight instrument on target.\n- Read dial to determine optical center of instrument lens.\n- Verify specified focusing power.\n- Coat optical elements according to specifications.\n- Fill instrument housing with nitrogen gas to lessen corrosion.\n- Operate lathe to modify parts.\n- Record inspection and test data.\n- Mount lenses onto frames.\n- Process precision lens polishers, grinders, centerer-edgers, and lens mounters.","domain":"optical_engineering"}
{"url":"https://gwb.ee/toode/microscope-set-micro-clip-for-smartphones/","date":"2023-12-10T10:05:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00542.warc.gz","language_score":0.6853713989257812,"token_count":148,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__148408326","lang":"en","text":"Microscope set MICRO-CLIP for smartphones\nWith this microscope set, a smartphone is transformed into an easy-to-use, powerful biological microscope that enables macro photography. In addition, previously prepared slides can be viewed with the slide holder.\nInterchangeable eyepieces with magnifications of 60x, 150x and 300x\nSlide holder for 75 x 25 mm slides\nWith LED light source\nScope of supply: 3 eyepieces (60x, 150x, 300x), slide holder, illuminator, clip, 2 prepared slides, 10 slides, pipette, tweezers, plastic cup, 2 sample collection vessels, carrying case, 3 batteries (AG3/LR41)","domain":"optical_engineering"}
{"url":"https://ph.1lowvision.com/index.php?route=product/category&path=63_85_81","date":"2020-11-29T07:05:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141197278.54/warc/CC-MAIN-20201129063812-20201129093812-00571.warc.gz","language_score":0.8394354581832886,"token_count":800,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__169550411","lang":"en","text":"The Ultimate Desktop Video Magnifier The ergonomically designed TOPAZ XL HD desktop video magnifiers with easy to use accessible controls will have you reading of a wide variety of printed materials in no time. Just turn on the TOPAZ and three large colour coded dials are at your fingertips for quic..\nSimple to use, yet packed with features!The TOPAZ HD video magnifier is the perfect choice for reading and performing daily tasks, with a wide magnification range, gliding reading table, lots of workspace under the camera, LED lighting, and unique features like Find and Freeze Frame.The TOPAZ HD des..\nPortable video magnifier designed for your lifestyleThe lightweight TOPAZ PHD offers the comfort and productivity features of a desktop video magnifier but folds away like a laptop. With auto-focus, a wide magnification range, intuitive controls, six default and 27 customizable high-contrast color m..\nON-THE-GO LOW VISION SOLUTIONS ONYX Deskset models are ideal for clear, powerful magnification that is portable, adaptable, and easy to use. The Onyx are at home in any classroom, business, or home environment where they can be moved from one viewing situation to the next as quickly as you do. The c..\nAn Intuitive Video Magnifier that allows you to listen to, view and magnify text.\nThe ONYX OCR magnifies and reads aloud any document. The clear voice, magnification and high contrast makes reading so much easier. Comfortably change your focus from reading magnified texts yourself, to letting the O..\nAll-in-One HD Video Magnifier with Text-to-SpeechHD - Text-to-Speech (OCR) - 3-in-1 CameraDaVinci is a high performance desktop video magnifier (CCTV), featuring HD, text-to-speech (OCR) and a 3-in-1 camera. With HD you will experience high definition colour and contrast giving you a bea..\nMerlin Ultra Full HD Video MagnifierSee the Difference in Full High DefinitionThe new affordable Merlin ultra offers full high-definition colour and contrast, resulting in sharp crystal clear images and vibrant colour accuracy. Merlin ultra's new Full HD camera allows for a wide field of view, displ..\nPortable Battery Operated Electronic Video MagnifierLightweight - Portable - Multi-Task See near, far and everything in between with Acrobat HD-mini ultra. High definition allows you to experience vivid colours and contrast, giving you a beautiful crystal clear picture and vibrant display. Its small..\nAcrobat HD ultra LCD - Flexibility for Any Task!High Definition Images in Bright Vivid ColoursAcrobat HD ultra's new Full HD 3-in-1 camera provides the best image quality available today! Enjoy brighter sharper colors and bold contrast with this feature rich electronic magnifier. A wider field of vi..\nAcrobat HD ultra Long Arm - High Definition Images in Bright Vivid Colours With a new Full HD 3-in-1 camera the Acrobat HD ultra long arm provides the best image quality available today! Enjoy brighter sharper colors and bold contrast with this feature rich electronic magnifier. A wider field of vie..\nFree-standing short arm is easy to transport and offers great stability. You can configure the Acrobat in a variety of ways to meet your specific needs. Connect the unit to a computer monitor or TV or portable viewing panel. Choose the optional long arm or short arm mount for a custom solution. (Not..\n22-inch Full HD image with Glare-free screen and reflection-free lighting\nIncorporating a 22” screen the Acuity can be customized to\nsuit the requirements of all end users and now comes with Full A4 OCR\nincorporating auto language detection.The Acuity is provided with a Full HD (1080p) camera a..","domain":"optical_engineering"}
{"url":"https://utwentecareers.nl/en/vacancies/1098/phd-position-time-resolved-and-calibrated-spectroscopy-of-euv-light-sources/","date":"2023-04-01T17:12:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950110.72/warc/CC-MAIN-20230401160259-20230401190259-00445.warc.gz","language_score":0.8824150562286377,"token_count":954,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__151421039","lang":"en","text":"Are you enthusiastic about exploring scientific challenges with an industrial application perspective?\nExtreme ultraviolet lithography (EUVL) is the latest generation of the semiconductor manufacturing technology powered by laser-produced-plasma light sources. These EUV light sources emit in a broad range of wavelengths spanning from soft x-rays to visible. A quantitative spectral characterization capability of such a broad wavelength range recently become available using a proprietary transmission grating spectrometer developed by XUV optics group (https://doi.org/10.1063/5.0073839). The calibration of the charge-coupled-device (CCD) that are used as detectors in such a spectrometer is sensitive to the operation conditions of the light source. Cross-calibration of the CCD with other type of detectors such as photodiodes and investigating the light sources with time resolution provides wealth of information that is otherwise not accessible.\nWe are looking for a motivated and skilled PhD student to carry out research on the fundamental physics questions on the calibration sensitivity and time-dependent spectral evolution of the EUV light source. Methods to enable inline calibration and time-resolved operation is to be developed in the project with the support of technical staff.\nThe XUV Optics Group at Twente has started a new multidisciplinary research program on these topics. We develop forefront fundamental research, relevant to high tech applications (www.utwente.nl/xuv/). The research will take place in a state-of-the-art thin film laboratory within the MESA+ Institute for Nanotechnology at the University of Twente, in collaboration with various academic and industrial partners. The XUV group has a track record in developing thin film physics and holds several records in functional film properties, including the reflectivity of thin film multilayer optics.\nYour goal is to develop the fundamental physics understanding on time-resolved and calibrated spectroscopy of EUV light sources. This includes:\n- Understanding the sensitivity of detector calibration to the operation conditions of the EUV light source,\n- Designing and developing filters/coatings to enable online calibration at various wavelengths,\n- Analyzing the properties of the developed filters/coatings using characterization techniques such as AFM, XRD, XRR and SEM,\n- Understanding the time-dependent evolution of the spectral emission of the EUV light sources.\nInformation and application\nYour reaction should include:\n- an application/motivation letter, emphasizing your specific interest and motivation for this particular position,\n- a detailed CV, containing your publications list, contact details of referees, and an academic transcript of B.Sc. and M.Sc. education.\nAn interview and a scientific presentation will be part of the selection procedure.\nFor detailed information, you can contact Dr. Muharrem Bayraktar at email@example.com, +31 53 489 3910.\nPlease apply via the “Apply Now” button below.\nAbout the department\nThe XUV Optics group is embedded in the MESA+ Institute (www.mesaplus.utwente.nl), which is one of the largest nanotechnology research institutes in the world, delivering competitive and successful high-quality research. The institute employs 500 people of which 275 are PhD’s or PostDocs. With its unique NanoLab facilities the institute holds 1250 m2 of cleanroom space and state-of-the-art research equipment.\nThe University of Twente is an equal opportunity employer which values diversity. We do not discriminate on race, religion, color, national origin, gender, sexual orientation, age, marital status, or disability status. Because of our diversity values we do particularly support women to apply.\nAbout the organisation\nThe Faculty of Science & Technology (Technische Natuurwetenschappen, TNW) engages some 700 staff members and 2000 students in education and research on the cutting edge of chemical technology, applied physics and biomedical technology. Our fields of application include sustainable energy, process technology and materials science, nanotechnology and technical medicine. As part of a people-first tech university that aims to shape society, individuals and connections, our faculty works together intensively with industrial partners and researchers in the Netherlands and abroad, and conducts extensive research for external commissioning parties and funders. Our research has a high profile both in the Netherlands and internationally and is strengthened by the many young researchers working on innovative projects with as doctoral candidates and post-docs. It has been accommodated in three multidisciplinary UT research institutes: Mesa+ Institute, TechMed Centre and Digital Society Institute.","domain":"optical_engineering"}
{"url":"http://www.philipsxenon.com/mercedes-benz-c-371/mercedes-benz-xenon-lights-kit-by-philips-hid-p-1256","date":"2017-03-30T10:44:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218193716.70/warc/CC-MAIN-20170322212953-00367-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9051139950752258,"token_count":580,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__1324440","lang":"en","text":"Designed and manufactured in Germany, our HID conversion kit is superior to any other conversion kit on the market.\nPhilips Light Source HID system includes:\n- Pair of xenon bulbs designed for your Mercedes\n- Pair of digital ballasts with built in CAN-BUS flickering solver\n- Screws and any necessary wiring\n- 2 year warranty\n- Full technical support by Mercedes technician\nPhilips HID Conversion Kits are the best HID kits in the market. Our kits utilize original Philips Xenon Burner from Germany (Philips XENON HID LIGHT SOURCE). Our HID bulbs are the highest quality bulbs in the market.\nPhilips kits are easy to install and can be done on most vehicles under 30 minutes. No cutting or splicing is required for the installation.\nPhilips HID kits are not DOT Approved (United States), CE and E-Mark Approved (Europe) and ROHS Approved (United Kingdom).\n- UV cut glass for headlight protection\n- Water and vibration resistant\n- Color Temperatures of 4300K or 6000K\n- 3400 Lumens light output\n- 3000 Hours Lifetime\n- No warm-up period for maximum brightness\n- CAN-BUS circuit for flickering and radio interference resolution\nSome modern vehicles have computer controlled modules for monitoring the headlight circuit (CAN-BUS). Our Philips conversion kit has special circuitry built in to prevent flickering, dash lights and radio interference issues on 99% of vehicles.\nRapid industrial change should be matched with rapid technological advancements. This will ensure that the adverse effect of the automobile industrial revolution is not felt by the population. To attain an environment friendly, Mercedes Company came up with a more environment friendly car than any other-Mercedes HID kit. Some of the features of this model of Mercedes that makes it the most appealing to customers include its lighting system. Mercedes industry has introduced xenon conversions on their vehicles. The Mercedes HID kits provide the best night visibility. The bulbs are considered to be the best inventions made in the lighting technology so far. After having been in the market for a small period, Mercedes xenon lights are considered a perfect treat to go for when looking for replacements for your car lighting system. The Mercedes HID lights were an upgrade on the OEM. Mercedes xenon conversions are seen as a plug that is complete in its own. The Mercedes HID conversions are designed for Mercedes minivans, cars and SUVs. Mercedes xenon bulbs are available in sizes of H3, H1, H4, h13, H7, 9004, 9005, 9006, 9007, D2S, D1S, H4-1, 9004-1, AND 90007-1 Mercedes lights are readily available and easy to install. They are also found in great prices.","domain":"optical_engineering"}
{"url":"https://www.baktimedical.com/product/biolase-epic-pro-dental-soft-tissue-laser/","date":"2023-12-05T02:14:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100540.62/warc/CC-MAIN-20231205010358-20231205040358-00855.warc.gz","language_score":0.825619101524353,"token_count":1018,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142753413","lang":"en","text":"Biolase Epic Pro\nEpic Pro Dental Soft Tissue Laser is the first premium diode laser from BIOLASE, providing new innovations that will allow dental professionals to manage soft tissue in a way that no other diode laser has achieved. It features industry first, Super Thermal Pulse technology, real-time Automatic Power Control, and pre-initiated pro tips with Smart Tip Technology, to provide unmatched cutting speed, consistency, safety, and precision.\nBiolase Epic Pro Dental Soft Tissue Laser offers the following benefits to dental practices and their patients:\n- Less fear and anxiety\n- Quicker and more efficient visits\n- Faster healing and recovery\n- Little to no post-operative pain and discomfort\n- Better patient reported outcomes\n- redictable results\n- Increased clinical precision and control\n- Faster, cleaner and gentler than traditional diode lasers\nUnmatched Cutting Speed and Control\nAutomatic Power Control – BIOLASE Exclusive\nThis unique treatment mode allows for laser energy to be adjusted automatically in real time to maintain constant tip temperature; resulting in extremely consistent and reliable cutting conditions regardless of speed of movement, tissue type, etc.\nGreater Precision & Safety\nSuper Thermal Pulse – BIOLASE Exclusive\nThis unique treatment mode allows for laser energy to be emitted in multiple bursts of high energy in short micro pulses; resulting in high cutting efficiency and safety.\nUnparalleled Consistency and Predictability\nPro Pre-Initiated Tips with Smart Tip Technology – BIOLASE Exclusive\nThe Biolase Epic Pro Dental Soft Tissue Laser tip is the first tip where initiation material is fused inside of the quartz fiber material, creating a veneer-like surface on the fiber tip. This provides robust and long-lasting performance. The new Epic Pro tips also feature Smart Tip Technology, where the device has a built-in tip integrity indicator, to ensure that cutting is fast, consistent, and precise every time.\nThe Epic Pro Dental Soft Tissue Laser, which offers the most laser power of any diode laser in dentistry, is the first\nproduct to be introduced resulting from BIOLASE strategic development agreement\nwith IPG Medical. The newest addition to the Epic family of dental soft-tissue lasers, Epic\nPro features several new innovations that are industry-firsts:\n- A new super pulse technology for more precise, enhanced laser tissue cutting\n- Real-time automatic power control to enhance speed and consistency when performing surgery with pre-programed tip temperature\n- Pre-initiated, bendable, disposable tips with new smart tip technology to ensure tip performance and quality\nAutomatic Power Control: Epic Pro cuts four times faster1 than a classic diode laser with\nminimal collateral damage. In this treatment mode, the laser in continuous wave mode converts light energy to thermal power at the tip. Laser energy is adjusted automatically in real time to maintain constant tip temperature. The result is extremely consistent and reliable cutting conditions, regardless of speed of movement, tissue type, etc.\nSuper Thermal Pulse: Epic Pro can achieve ten times the peak power of a standard diode (and up to three times that of the closest competitor) laser in short micro-pulses for the highest cutting efficiency and safety. In this treatment mode, the laser converts light energy to thermal power, which it emits as thermal power pulses, (i.e. multiple bursts of high power). Each of these thermal bursts cuts tissue highly efficiently. When the laser is activated, power bursts are emitted with a preset pulse width (duration), while maintaining a precise thermal level at the tip. The laser is powered on only about 3-5% of the time, giving tissue ample time to relax between pulses; creating a safer and gentler experience for patients.\n|Dimension||7.25in (W) x 4.5in (L) x 6.5in (H) (18.4cm x 11.4cm x 16.5cm)|\n|Weight||4 lbs (1.8 kg)|\n|Operating Voltage||100V – 240V at 1.2A/0.5A|\n|Main Control||Power Switch (ON/OFF Control Button)|\n|Remote Interruption||Remote Interlock|\n|Disable Control||Emergency Stop Button|\n|DC Power Supply Module||12V DC, 5A|\n|Laser Classification||Class IV (4)|\n|Wavelength||940nm ± 20nm or 980nm ± 20nm|\n|Power Modes||Continous, Pulse Modulation|\n|Max. Power Output||25 W (CW)/150 W (Pulse)|\n|Fiber Tip Diameter||300µm, 400µm|\n|Pulse Interval||0.01ms – 20ms|\n|Pulse Repetition Rate||Up to 20kHz (for reference)|\n|Standard Fiber Cable Length||56 feet (1.8 meters)|","domain":"optical_engineering"}
{"url":"https://www.wp-rack-cabling.com/en/fiber-optic-accessories/9858-wpc-fth-plc16sca.html","date":"2021-06-17T08:32:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487629632.54/warc/CC-MAIN-20210617072023-20210617102023-00590.warc.gz","language_score":0.6678304076194763,"token_count":310,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__150905422","lang":"en","text":"Fiber Optical PLC Splitter Singlemode G657A1 SC/APC 1 to 16\nSecurity policy (edit with Customer reassurance module)\nAre you interested in this product?\nWP CABLING PLC optical splitters (Planar Lightwave Circuit splitter) are passive devices used to divide a beam of light into more beams uniformly. The PLC optical splitter provides a passive distribution solution of low cost signal but with high stability and reliability. Optical splitters can offer a splitting ratio up to 1x64 and are indispensable in the PON (Epon, GPON, FTTX) networks.\n1.Low insertion loss and low PDL\n2.High channel counts\n3. Exceptional reliability and stability\n4.Wide operating wavelength\n1x16 PLC Splitter\nOperating Wavelength (nm): 1260 ~ 1650\nFiber Type: G657.A1\nInsertion Loss (dB): 13,5\nLoss Uniformity (dB): 1,2\nPolarization Dependent Loss(dB): 0,25\nReturn Loss (dB) (P/S Grade): 55/50\nDirectivity (dB): 55\nWavelength Dependent Loss (dB): 0,5\nSplitter Dimension (mm): 50x7x4\nInput cable length: 1mt.\nOutput cables length: 1mt.\nNo customer reviews for the moment.\n(Hay 9 otros productos de la misma categoría)","domain":"optical_engineering"}
{"url":"https://video.viavisolutions.com/en-us/category/videos/fiber-inspection","date":"2024-04-18T17:56:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817222.1/warc/CC-MAIN-20240418160034-20240418190034-00300.warc.gz","language_score":0.8175913691520691,"token_count":725,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__98308248","lang":"en","text":"Fiber Inspection34 videos\nVIAVI INX 760 Simplifies Fiber Inspection\nKevin Oliver of VIAVI discusses the INX 760 with Lightwave, and how the microscope enables automation of every step of the fiber inspection process.\nINX 760 Feature Spotlight: PanOptic Imaging\nThe INX 760 Probe Microscope features PanOptic Imaging which ensures edge-to-edge field-of-view without compromising magnification and resolution quality.\nINX 760 Feature Spotlight: AutoID Inspection Tips\nThe INX 760 Probe Microscope features AutoID inspection tips that ensure hassle-free simplicity by identifying each tip attached and automatically configuring the microscope without any additional steps.\nINX 760 Probe Microscope: Automated Single and Multifiber Connector Inspection and Analysis\nIntroducing the INX 760 from VIAVI Solutions. Designed for field use, this probe microscope delivers a faster, simpler, stronger, and smarter solution with fully automated connector inspection and analysis for single and multifiber connectors.\nElevating Fiber Inspection: Introducing the INX 760 Probe Microscope\nIntroducing the INX 760 Probe microscope for single and multi-fiber inspection and analysis. Building on 25 years of customer driven innovation, the INX 760 delivers a faster, simpler, stronger, and smarter solution for field fiber inspection.\nVIAVI Fiber Inspection Solutions That Optimize Accessibility\nAt VIAVI, we are dedicated to helping our inspect every connector in their network, wherever it is at. In addition to having the widest range of tips for different connector types.\nVIAVI Fiber Inspection Solutions for Every Application\nAs fiber infrastructure continues to grow in Data Centers, FTTH, and 5G Wireless, so has the need for new specialized types of connectors. No matter what types you encounter, you can rest assured that VIAVI Solutions has an inspection tip for it.\nVIAVI Fiber Inspection Solutions Overview\nAs the #1 leader in fiber inspection solutions, VIAVI Solutions provides an extensive portfolio of probe microscopes and tips that enable fast and reliable inspection to ensure clean fiber connectors in any application.\nVIAVI ENCORE: Buy Used Test Equipment with Confidence\nThe VIAVI ENCORE Certified Refurbished Equipment Program allows you to buy used, refurbished test equipment with confidence at and get a bargain at the same time.\nFiberChek Probe - Inspecting an MPO Fiber Patch Cord With a Bulkhead Tip\nThis short video provides a demonstration of the VIAVI FiberChek Probe, highlighting the helpful technique of using an MPO bulkhead adapter to inspect the end face of an MPO connector on a patch cord.\nFiberChek Probe - Inspecting a Simplex Fiber Patch Cord With a Bulkhead Tip\nThis short video provides a demonstration of the VIAVI FiberChek Probe, highlighting the helpful technique of using a bulkhead adapter to inspect the end face of a simplex connector on a patch cord.\nFiberChek Probe - Attaching Inspection Tips\nThis short video provides a demonstration of the VIAVI FiberChek Probe, highlighting how it uses interchangeable tips that enable inspection of different fiber types and applications.\n- Load More","domain":"optical_engineering"}
{"url":"http://www.groupmach3.com/industrial-led-lighting/","date":"2018-02-24T09:37:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815544.79/warc/CC-MAIN-20180224092906-20180224112906-00230.warc.gz","language_score":0.9489342570304871,"token_count":548,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__160369179","lang":"en","text":"We design and supply highly efficient LED lighting systems for your factory and industrial facilities. We offer solutions that are suitable for your newly constructed buildings and for retrofit and renovation projects. Our lighting solutions include flood lights, high bay lighting and replacement for old fluorescent tubes.\nLED Flood Lights\nOur specially designed LED flood lights are attractive and durable. They offer powerful output that can illuminate wider areas than most conventional flood lights. These flood lights produce very low heat and they neither emit harmful gases like carbon dioxide nor contain lead or mercury. Due to their long lifespan, these maintenance free LED flood lights are more cost effective than conventional HID or fluorescent bulbs. The LED bulbs do not get burnt frequently and the bulbs are designed to last for at least 100,000 hours, so they offer significant energy cost savings. Unlike incandescent bulbs, these flood lights do not require any time to heat up – they come on and attain maximum brightness instantly. Our flood lights are just as bright as day light so they can be used to illuminate sports facilities. They are also ideal for illumination of large billboards, parking lots, and warehouses.\nHigh Bay LED Lighting\nThese high bay LED lights are ideal for illuminating warehouses and other facilities that have high ceilings, which are 15 feet or higher. You can also install them in gymnasiums, loading docks, and various kinds of industrial facilities were lighting fixtures need to be fixed far above the ground. Our high bay LED lights distribute light more evenly than other traditional types of lighting. Other key benefits of these high bay lights include uniformity and the absence of flickering. These LED lights are easy on the eyes so they are ideal for illuminating production facilities where people will work continuously for long hours everyday.\nLED Tube Replacements\nOur LED tubes are the best choice when you need to replace your old T12, T10, or T8 fluorescent bulbs with more energy-efficient lighting. With the capacity to deliver a luminous efficiency of about 100 lumens per watt, you can enjoy a 50% savings in energy consumption when you replace existing CFL or conventional fluorescent bulbs with our LED tubes. When you want to retain the use of your existing fixtures and wiring, our led tubes will work perfectly. So you can use them for office lighting in indirect and parabolic light fixtures. These bulbs offer better color rendering, long lifespan, and little or no maintenance, since they are solid-state devices. They also work perfectly as ceiling lights in climate controlled areas, fabrication floors, storage areas and small workshops and standard office spaces.\nAll our LED lighting are designed to meet the highest international quality standards. They are also covered by the original manufacturer’s warranty, so you can purchase them with peace of mind.","domain":"optical_engineering"}
{"url":"https://gamecameraworld.com/rangefinder-binoculars/","date":"2024-04-18T04:08:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817187.10/warc/CC-MAIN-20240418030928-20240418060928-00292.warc.gz","language_score":0.9377241730690002,"token_count":1942,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__80010675","lang":"en","text":"What are rangefinder binoculars?\nRangefinder binoculars combine a rangefinder with a normal binocular. A rangefinder is a fancy tool to measure the distance between you and what you are looking at. A binocular provides magnification of what you are looking at. The result is a device with rangefinding capabilities, as well as binocular abilities. You can see your target clearly, and see how much distance there is between you and your target in one look. As separate devices, the rangefinder could not give you a clear, magnified image, and the binocular won’t tell you how far away your target is. You would have to switch between the two. However, rangefinder binoculars are convenient and quick, so you don’t have to switch constantly.\nBestselling Rangefinder Binoculars in 2021\nHow do they work?\nLaser rangefinder binoculars work by shooting a flash of light at the object. The binoculars can time how long it takes for the light to reflect and use that to calculate the distance of the target.\nHowever, some factors can inhibit the range finder abilities. If the target itself is not very reflective, or too small, or at a strange angle, the laser may have trouble hitting and reflecting back to you. Other factors include the weather and light conditions and the way you hold and angle your binoculars. Overcast weather or precipitation can obscure the laser beam and light transmission. If your binoculars are shaking or held at a bad angle, the light of the laser won’t hit the target, and you won’t be able to calculate the distance.\nHow far can rangefinder binoculars work accurately?\nThe distance that a rangefinding binocular can work depends on how reflective the target is. With a reflective target, like a large, flat surface, many laser rangefinding binoculars can work up to around 1800 meters. For a smaller, non-reflective target with a rougher surface, the range is more like 1100 meters.\nFor a more advanced, and therefore more expensive, rangefinding binocular, you can get around 5000 yards of distance for a reflective target and about 2000 yards for smaller targets like animals or trees. The Leica GeoVid HD-B 3000 can provide up to 3000 yards of range.\nPorro Prism vs. Roof Prism:\nBinoculars can be divided into basically two categories: Porro prism and roof prism. The job of the prism is to amplify and invert the image coming from the objective lens (which would otherwise give you an upside-down image).\nPorro prisms were developed first and have been used since the 19th century after being invented by Ignazio Porro. These binoculars are shaped in a zig-zag orientation to allow for the prism shape. This makes the binoculars a little harder to handle as they are bigger and heavier, but the image they produce is clearer and typically gives a larger field of vision. A subset of Porro prisms is the BAK-4 prism which has a high optical performance.\nRoof prisms are more modern. They are straight, allowing them to be smaller and more lightweight. These are more common in today’s binoculars. However, they can be more expensive as the prism design is more complex, and although it won’t give as clear an image as the Porro prism will, they are more durable and can have stronger magnification.\nRF Binocular vs. Regular Binocular or Handheld Rangefinder\nWe know that a laser rangefinder binocular is essentially a pair of binoculars with an internal rangefinder. It has many good qualities, but there is something to say about its separate counterparts.\nHandheld rangefinders are super small and compact. They are usually more affordable at around $300 and are easier to work. Typical handheld laser rangefinders have up to a 6x power optic and work great with short ranges. Still, there are more comparisons between a handheld rangefinder and a rangefinding binocular you can learn about.\nA rangefinding binocular will sometimes have a colored coating on the lens to help the laser reflect better, but that coating can become annoying and mess with the optics of the binocular. This problem is usually solved with a higher-end rangefinding binocular, whereas cheap rangefinder binoculars can be problematic. Therefore, for the most part, it is best to find the combined ranging capability of a laser rangefinder and the magnification of binoculars in one device.\nLeica GeoVid HD-B 3000\nThe Leica GeoVid may be an expensive option, but they are worth the price. Leica designed their rangefinder binocular to be incredibly effective. The GeoVid gives a strong, clear magnification of your target with accurate and fast measurements of distance. It provides a wide view, a maximum range of 3000 yards, and has an advanced system to calculate all factors. Leica’s GeoVid is designed to make it easier for you. The system calculates temperature, air pressure, and has good angle compensation to help you find the exact distance to your target. In addition, Leica designed their device to be durable. The Leica GeoVid is waterproof, shock-resistant, and fog-resistant. It has a comfortable grip, eye relief, and a lightweight design.\nIf that’s not enough, the Leica also has one more feature. You can upload your specific ballistic onto an SD card and insert it into the card slot on the GeoVid HD-B. Then, your gun ballistic will be added to GeoVid’s calculations. You can switch out these cards for other ballistic you may be using, and the Leica GeoVid will automatically calculate everything for you.\nFeatures You May Want\nWhile there are many features to consider when purchasing rangefinder binoculars, we’ve narrowed down what we think are some of the key features to look into:\nScan mode: scan mode allows you to track the distance of a moving target. Some advanced rangefinding binoculars can give you multiple readings per second.\nEquivalent horizontal range: EHR gives you the horizontal distance of your target. This is especially helpful in hilly or mountainous terrain where you or your target is on an incline. A range-finding binocular with EHR would be able to give you more data that you need in order to calculate where to shoot.\nLast target mode: last target mode gives you the readings for the furthest object that the rangefinder can pick up. This is needed when your target is behind something, and you don’t want the average coordinates of everything in its path.\nBest target mode: best target mode will give you an average of all the objects your laser rangefinder is picking up. It will give you the distance to whatever offers the best results.\nBallistic computer: a ballistic computer is employed in the Leica GeoVid. It allows you to upload your ballistic information to your rangefinding binoculars, and it will add that to its calculations.\nAtmospheric readings: the air pressure and temperature is going to affect your bullet or arrow. A rangefinder binocular with the ability to input barometric pressure will give you more accurate information about your target. The atmospheric conditions will have a significant impact on your ballistic curve and are important to consider.\nYou can go here for a longer list of features you can have on your rangefinding binoculars.\nHow much do rangefinder binoculars cost?\nLots of rangefinder binoculars cost around $1,000. A really advanced rangefinding bino with higher than 10x magnification and other features, like eye relief or a stronger objective lens, can cost up to $3,500. Some more affordable ones tend to be around $700-$800. For example, the Leica GeoVid costs around $3,000. The Nikon LaserForce rangefinder binocular is just over $1,000 and has a range of about 1900 yards. It also has coated lenses and eye relief in its design. The Vortex Fury HD is about $1,600. Bushnell binoculars is another company that offers binoculars for between $100 and $800. Getting a rangefinding binocular is definitely an investment, but if you are an avid hunter and are done switching between a laser rangefinder and binocular to see your target and its distance, you might want to consider getting them.\nRangefinding binoculars are very efficient as they combine a handheld laser rangefinder and binocular into one device. While there can be benefits of using two separate devices, if you buy a more advanced rangefinder binocular, those issues aren’t as important. Prices range a lot for rangefinding binoculars, and so it depends on what you need from your RF binoculars and how much you are willing to pay. More serious hunters will want to consider it, while someone who wouldn’t use it as much doesn’t need a super expensive one. Make sure you understand your needs and your price range before you look for rangefinding binoculars. There are many features to look into, but a more advanced rangefinding binocular will have a higher price tag. But if you think a rangefinding binocular would make your life easier, it’s definitely worth looking into.","domain":"optical_engineering"}
{"url":"https://www.geekinteger.com/first-quantum-microscope-reveals-previously-unseen-cell-structures/","date":"2023-09-25T12:42:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508977.50/warc/CC-MAIN-20230925115505-20230925145505-00728.warc.gz","language_score":0.9026880264282227,"token_count":266,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__202852484","lang":"en","text":"Researchers at the University of Queensland have developed the first quantum microscope, a major leap from existing technology that will allow us to observe previously unseen biological structures. Scientists say it could pave the way for improvements in machines, medicine, and just about every other industry.\nThe best light-based microscopes use lasers to observe microscopic structures. But these lasers are billions of times brighter than the sun and can quickly damage anything in their path—especially biological matter.\nBut quantum microscopes, which are based on the science of quantum entanglement, leave magnified subjects untouched. The technology also offers 35% better viewing clarity than existing microscopes, providing a much better look at small, delicate structures.\nThe use of quantum entanglement in microscopes could encourage companies to pursue other quantum technologies, like quantum computers. According to research by Google, an equation that takes 10,000 years for a modern supercomputer to solve can be cracked by a quantum computer in just 200 seconds.\nWe don’t know when the quantum microscope will become a scientific standard or if its use has any drawbacks. For the time being, light-based microscopes are still the norm. But if scientists are correct, the use of quantum microscopes will revolutionize biology, medicine, technology, and other sectors.\nSource: University of Queensland","domain":"optical_engineering"}
{"url":"https://grandviewmercantile.com/product/antique-brass-and-leather-telescope-from-england/","date":"2022-01-18T04:30:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320300722.91/warc/CC-MAIN-20220118032342-20220118062342-00667.warc.gz","language_score":0.9068437218666077,"token_count":129,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__195505361","lang":"en","text":"Great condition, wear consistent with age.\n2.5″W x 2.5″D x 10.5″L(36″ extended)\nFrom 19th century optician and instrument producer, A. Franks from Manchester, England. Leather wrapped, with a brass casing, this telescope is extendable of up to 36 inches. Marked A Franks. Optician. Manchester. A fine crafted antique for the collector of optical instruments\nThis telescope is amongst hundreds of pieces of collectibles that are available at our showroom in Grandview! Come in today and see the full collection.\n1 in stock","domain":"optical_engineering"}
{"url":"https://www.aquraclock.eu/menlo-systems.html","date":"2023-10-02T05:04:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510967.73/warc/CC-MAIN-20231002033129-20231002063129-00103.warc.gz","language_score":0.9240305423736572,"token_count":438,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__223671094","lang":"en","text":"Menlo Systems is a leading developer and global supplier of instrumentation for precision metrology on the highest level. The company with headquarters in Martinsried near Munich is known for its Nobel Prize winning optical frequency comb technology. Our main product lines are optical frequency combs, solutions for time and frequency distribution, ultrastable lasers, terahertz systems, and femtosecond lasers. We deliver state-of-the-art products to customers from industry and academia worldwide. To push the limits of the measureable, we work closely with selected customers and develop new solutions for laser-based precision measurements.\nWithin AQuRA Menlo leads the design, engineering and integration of the AQuRA clock project. Menlo will provide the optical frequency comb, the stable reference cavity, the wavelength stabilization and control of the lasers systems, user level control software and technical project management.\nRichard Zeltner received both his bachelor's and master's degrees in Integrated Life Science from the University of Erlangen-Nuremberg, Germany. During the course of this interdisciplinary programme he learned how photonic tools can be used for biological research, which sparked a broad interest in optics and photonics. Pursuing this new interest he joined the division of Prof. Gerd Leuchs at the Max-Planck-Institute for the Science of Light in Erlangen (MPL) in 2013 to work on his master’s thesis on refractometric sensing using whispering-gallery-mode resonators. For his PhD thesis he joined the division of Prof. Philip St.J. Russell at MPL in 2014, where he mainly worked on novel optical sensors based on optically propelled particles inside hollow-core photonics crystal fibers.\nAfter receiving his PhD in autumn 2018 he joined Menlo Systems GmbH, a leading supplier and developer of laser systems for quantum technologies and precision metrology, in spring 2019. Based in Munich, Germany, Richard is working at Menlo as a project leader and executive assistant.","domain":"optical_engineering"}
{"url":"https://autofurnish.com/hella-carsuvmuv-reading-lamp","date":"2020-08-10T18:58:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737168.97/warc/CC-MAIN-20200810175614-20200810205614-00369.warc.gz","language_score":0.9054248929023743,"token_count":207,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__83566593","lang":"en","text":"1. This is a Universal product2. The lamp is fitted with a 12V/6W halogen bulb and optically patterned lens to provide powerful, bright and dazzle free light3. The on/off switch located on the lamp head gives you quick and convenient access while the flexible metal arm gives large radius of action4. The lamp comes with a holder for pendant mounting and can also be fixed in position with a clip\nThe HELLA Head Lamp Relay with complete Harness IAM986-09 is a super performance product. It is a strong, non-dazzling light source on flexible metal arm. It comes with a holder for fixed attachment. Moreover, you can bend this light in all directions. It is suitable for Cars/SUV/MUV. It is 500 mm in length. The bulb type is 12V/5W. Now you can get clear vision. Have a happy and safe drive!\nSubscribe to our newsletter and get information about our latest offers and prices.","domain":"optical_engineering"}
{"url":"https://doc.collmot.com/public/skybrush-live-doc/2.2.0/tutorials/setup-hardware-outdoor/setup_light_module.html","date":"2023-05-30T05:26:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645089.3/warc/CC-MAIN-20230530032334-20230530062334-00025.warc.gz","language_score":0.8139275312423706,"token_count":652,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__118590022","lang":"en","text":"Configure your light module\nFirst of all, you need to tell our firmware how to connect with the LED light of your drone. Skybrush Live supports three methods at the moment: LED lights connected directly to the servo outputs of the autopilot, external LED lights controlled by MAVLink\nDEBUG_VECT messages, or NeoPixel and ProfiLED strips driven via an RC output channel.\nLED lights connected to servo outputs\nIn this setup, the red, green and blue channels of the LED light must be connected to the servo outputs of the autopilot. The function values associated with the three channels (R, G, B) are 107, 108, 109, respectively. So for example, if the red, green and blue channels are connected to servos 9, 10 and 11, you need to set the following parameters on the drone:\nSERVO9_FUNCTION 107 SERVO10_FUNCTION 108 SERVO11_FUNCTION 109 SHOW_LED0_TYPE 6\nYou might also need to set up the frequency and minimum and maximum PWM ranges of the servo channels appropriately (\nSERVOx_TRIM) parameters; typical values are 0 and 10000 for the minimum and the maximum, respectively, if\nSERVO_RATE is 100 Hz.\nExternal LED lights controlled by MAVLink messages\nThis setup assumes that your LED light responds to MAVLink\nDEBUG_VECT messages where the name in the message is set to\nz components of the message carry the RGB intensity values in the range 0-1. The LED light can be connected directly to one of the telemetry ports of the autopilot, or there may be a routing component between the LED light and the autopilot that takes care of forwarding the appropriate messages to the LED light.\nIf the LED light is connected to telemetry port 1, use the following parameter setting:\nSHOW_LED0_TYPE 1 SHOW_LED0_CHAN 0\nIf the LED light is connected to telemetry port 2, use the following parameter setting:\nSHOW_LED0_TYPE 1 SHOW_LED0_CHAN 1\nNeoPixel and ProfiLED strips\nThis setup assumes that a NeoPixel or ProfiLED strip is connected to one of the RC output ports of the autopilot. Each LED strip may contain multiple LEDs, but all the LEDs will be set to the same color at any moment in time.\nIf you have NeoPixel LEDs, start with the following parameter setting:\nIf you have ProfiLED strips, start with the following parameter setting:\nBesides setting the LED type, you also need to tell the firmware how many LEDs are there on a single strip, and which RC channel to use. For instance, if the LED strip is on RC channel 6 and you have 16 LEDs:\nSHOW_LED0_CHAN 6 SHOW_LED0_COUNT 16","domain":"optical_engineering"}
{"url":"https://www.theyesite.com/optical-at-the-eye-site","date":"2021-06-13T04:56:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487600396.21/warc/CC-MAIN-20210613041713-20210613071713-00229.warc.gz","language_score":0.8482109904289246,"token_count":392,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__140788792","lang":"en","text":"The Eye Site has a full service In-House Optical lab and dispensary - Same Day Lenses & Frames\nThe Eye Site uses state of the art computerized lens fabricating equipment.\nWe offer a wide variety of affordable glasses and sunglass options, including: Ray-Ban, iGreen, Coach, Fossil, Kate Spade, OGI, NW 77th Silhouette, Vera Bradley, Guess, Sperry, LineArt, Converse, TOMS, Jones New York, Seiko, Tura, TitanFlex, Jimmy Choo, D&G, and many more!\nNo two pairs of frames—or patients—are exactly alike. We guide you in picking your perfect style, shape, and color from a wide selection of frames that run the gamut of designers and price points. Then we custom-fit your lenses to your frames, working with you to get the right frame-and-lens combination until you’re 100% satisfied.\nThe Eye Site's laboratory sets the standards in the optical industry for innovative manufacturing techniques. The Optical Industry's best lenses are available including:\nSingle Vision Lenses: (lenses with one power on the whole lens\nBifocal Lenses: (top area for far away viewing, and the lower segment for near viewing)\nProgressive Addition Lenses: (no-line multi-focal lenses)\nPC Lenses (computer lens): Ease to use... Peekers simple slip behind and rest on the temples of your regular glasses. This eliminates frustrating up and down head movement and relieves eye strain associated with computer use. Great vision for any task within arm's length. One size fits all. Provides Affordable, Comfortable, Clearer Vision.\nSafety Lenses: Polycarbonate lenses are thinner and lighter lenses that offer resistance to breakage and are used in all safety eyewear--protect your eyes!","domain":"optical_engineering"}
{"url":"https://www.root3labs.com/projects/automated-image-acquisition/","date":"2023-03-21T16:44:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943704.21/warc/CC-MAIN-20230321162614-20230321192614-00506.warc.gz","language_score":0.8865342140197754,"token_count":192,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__79832073","lang":"en","text":"Vasoptic Medical is developing a low-cost, handheld retinal imager for early diagnosis in primary care settings of a vision-threatening condition called diabetic retinopathy. Root3 Labs, in collaboration with Sensing Machines, helped Vasoptic automate certain mechanical and electrical aspects of the image acquisition process. Using their current enclosure and existing optics, we developed an add-on enclosure to provide collinear laser and LED lighting that the operator could switch between at the touch of a button. This allowed the operator to align the system and actuate the automated image capture without having to move the device or think about timing.\nFind out more about the technology at www.vasopticmedical.com.\nCollinear laser + LED\n3D Printed ABS enclosure","domain":"optical_engineering"}
{"url":"https://www.clavier.pl/produkt/lamp-dual-led-glam-make-up-eyelashes-40w/","date":"2021-10-24T21:20:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587606.8/warc/CC-MAIN-20211024204628-20211024234628-00667.warc.gz","language_score":0.8143624663352966,"token_count":189,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__51517844","lang":"en","text":"Dual Led Make Up Lamp\nProfessional flexible make-up lamp made of lightweight aluminium, characterised by perfect light emitted by 192 LEDs. Two heads placed on flexible arms guarantee optimal illumination from all sides with shadow-free light.\nBalanced lighting without colour distortion or unwanted heat emission similar to daylight\nThe Dual Led Lamp is the best tool for professionals specialising in make-up, hairdressing, hairdressing, tattooing and for taking photos and videos.\nTechnical data: - SMD LED light\n- Light colour adjustable from 3000K to 6000K\n- Power 40W\n- 220V/110V 50/60 HZ\n- Adjustable light intensity\n- Life span up to 50 000 hours\n- Net weight 2kg\n- Dimensions: 70 x 45 x 2.5 cm\n- The set includes: – two-arm LED lamp – four-arm tripod, phone holder, AC adapter, adapter","domain":"optical_engineering"}
{"url":"https://hnnotify.com/can-you-add-anti-glare-to-glasses/","date":"2024-02-27T19:41:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00758.warc.gz","language_score":0.9251903891563416,"token_count":648,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__29681502","lang":"en","text":"Glasses are essential for many people to see clearly. However, wearing glasses can sometimes come with certain challenges, such as glare from bright lights or reflections on the lenses. This can be particularly bothersome when driving at night or working on a computer for extended periods. To combat this issue, many individuals wonder if it is possible to add anti-glare coating to their glasses. In this article, we will explore the answer to this question and provide some insights into the benefits of anti-glare glasses.\nWhat is Anti-Glare Coating?\nAnti-glare coating, also known as anti-reflective coating or AR coating, is a thin layer applied to the surface of glasses lenses. It helps to reduce the amount of light that reflects off the lenses, thus minimizing glare and improving vision clarity. The coating is typically made of multiple layers of metal oxides that are applied through a vacuum deposition process.\nCan You Add Anti-Glare Coating to Glasses?\nThe good news is that it is indeed possible to add anti-glare coating to glasses. In fact, many eyewear stores and optical professionals offer this service. If you already wear glasses and are experiencing issues with glare, you can consult with an optician or optometrist to determine if adding anti-glare coating is suitable for your specific prescription and lens material.\nThe Benefits of Anti-Glare Glasses\n1. Reduced Glare: One of the key benefits of anti-glare glasses is the reduction of glare caused by bright lights or reflections. This can greatly enhance your visual comfort, especially in situations where you are exposed to intense light sources.\n2. Improved Night Vision: Anti-glare coating can significantly improve night vision by minimizing the glare from oncoming headlights or streetlights. This can make driving at night safer and more comfortable.\n3. Enhanced Visual Clarity: Anti-glare glasses can provide sharper and clearer vision by reducing the distractions caused by reflections on the lenses. This is particularly beneficial when using digital screens or working in environments with bright lighting.\nConsiderations Before Adding Anti-Glare Coating\nBefore deciding to add anti-glare coating to your glasses, it is important to consider certain factors:\n1. Prescription Compatibility: Not all prescriptions or lens materials are suitable for anti-glare coating. Your optician or optometrist will be able to determine if your specific prescription can accommodate the coating.\n2. Additional Cost: Adding anti-glare coating to your glasses may come with an additional cost. It is advisable to inquire about the pricing before proceeding.\n3. Maintenance: Anti-glare coating requires proper maintenance to ensure its longevity. It is important to clean the lenses using recommended methods and avoid using abrasive materials that can damage the coating.\nIf you are experiencing issues with glare or reflections on your glasses, adding anti-glare coating can be a viable solution. Consult with your optical professional to determine if your prescription is compatible and to learn more about the benefits and costs associated with this coating. Anti-glare glasses can enhance your visual comfort, improve night vision, and provide clearer vision in various lighting conditions.","domain":"optical_engineering"}
{"url":"https://www.brainsigns.com/en/science/s2/technologies/eyetracker","date":"2023-01-28T07:15:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499524.28/warc/CC-MAIN-20230128054815-20230128084815-00184.warc.gz","language_score":0.9009485840797424,"token_count":282,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__237455772","lang":"en","text":"Eye tracking is the process of measuring either the point of gaze (where one is looking) or the motion of an eye relative to the head.\nAn eye tracker is a device for measuring eye positions and eye movement. Eye trackers are used in research on the visual system, in psychology, in psycholinguistics, marketing, as an input device for human computer interaction, and in product design.\nIn recent years, the increased sophistication and accessibility of eye tracking technologies have generated a great deal of interest in the commercial sector. Applications include web usability, advertising, sponsorship, package design and automotive engineering. In general, commercial eye tracking studies function by presenting a target stimulus to a sample of consumers while an eye tracker is used to record the activity of the eye.\nExamples of target stimuli may include website, television programs, sporting events, films, commercial, magazines, newspapers, packages, shelf displays, consumer systems (ATMs, checkout systems, kiosks), and software.\nThe resulting data can be statistically analyzed and graphically rendered to provide evidence of specific visual patterns. By examining fixations, saccades, pupil dilation, blinks and a variety of other behaviors researchers can determine a great deal about the effectiveness of a given medium or product.\nWhile some companies complete this type of research internally, there are many other companies as BrainSigns that offer eye tracking services and analysis.","domain":"optical_engineering"}
{"url":"http://www.alphaclinic.com.hk/androcentric-words-pwujgoe/led-bulb-in-halogen-projector-96ec3b","date":"2021-04-19T21:56:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038917413.71/warc/CC-MAIN-20210419204416-20210419234416-00058.warc.gz","language_score":0.9308817982673645,"token_count":3373,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__108891523","lang":"en","text":"2. Inserting a DVD into the slot on your player just can’t compare to actually hearing the motor running, the film reeling past the projector bulb, and having to queue up the film yourself. $17.88 $ 17. Be it reflector or projector housing. Reflector. FF - Fan Comparing to Halogen † in Projector Headlights & Fog Lights. My wife got Prius v-three with a set of Halogen projector headlights. Projector Lamp Finder With lamps for over 8,400 different projectors and TVs to choose from, we most likely have what you’re looking for. I'm sure a few years down the road there will be better LEDs that will work better for this project, but for now it is good. It isn’t like HID bulb, which has scattered lighting like a flashlight, if you don’t install a projector lens together, HID will dazzle the other drivers on the front of you, very dangerous. They feature adjustable-beam technology and can be … How Projector Headlights Work. This is the inner structure of xenon projector. Like picture shown above, the brightness is improved so obviously. Reply From these tests, I found that the heat sink and the fans inside the projector were enough to keep the LED from over heating. Combriller 3157 LED Bulb White 6000K, 3056 3156 3057 4157 led bulb with Projector Replacement for led reverse lights turn signal bulb brake light bulb tail light bulb parking light bulb, pack of 2. LED headlights throw extremely intense light with very little draw on your car’s electrical system. 3. LED replacement for high-voltage halogen lights. For the next modification I tried actual mirrors for the reflector rather than the dull aluminum. That means 4000lumen, only 2000 lumen is used, another 2000lumen to down surface is wasted. Night Light for Kids, Moon Star Projector - 4 LED Bulbs 8 Light Color Changing with USB Cable, 360 Degree Rotation, Romantic Night Lighting for Baby Kids Women, Christmas Party Bedroom Decoration ... Only 10 left in stock. With no luck on the logic board I turned my sights to the main power supply. if you ever had a naked halogen and hid bulb side by side, you would see that the halogen has a small filament in the middle, whereas the hid bulb has the entire arc tube lighting up, at a different position than the halogen. This article is reviewing the best LED halogen replacement bulbs, and showing you how to replace the halogen bulb properly. While we finish the replacement work and turn on the headlight low beam pattern, the lighting is so strong, giving an obvious comparison to G8. LED bulb in Halogen projector headlights. I figured that if there was any signal coming from the power supply it had to connect to the main board to tell it to make the led blink and shut off the projector. Bulb: Every headlight needs a bulb, and projector headlights can use halogen, HID, and LED bulbs as the light source.The bulbs in projector headlights can be much brighter than the bulbs in reflector headlights. I was looking for a wire that was 5 volts or 0 volts with the light solid green, and 0 volts or 5 volts when the bulb indicator started blinking. I did some more research with the manufacturer and apparently serial communication is *optional* but it looks like Dell went that route. The arc-lamp reflector creates a single-point light source, which is easy because it starts with a single point light source... an electrical arc. This made the picture even brighter and easier to see, but again it still was not bright enough to enjoy a movie. I could buy a reasonable projector new for that much. The installation process is shown in above pictures. I used my multimeter with the ground connected to a grounding point on the projector and started measuring values of all the wires going to the main logic board. Halogen bulbs combine low cost along with a work life of up to 1000 hours and a … Reply Halogen is hot. Recomm. High-voltage halogen lights are operated directly with a mains voltage of 110V. I was inspired to try my hand at swapping a 4000 lumen LED into a Dell 2400MP projector. Just as I had thought, the middle red wire started at 0 volts and jumped to 5 volts when the indicator started blinking. The picture was much brighter and you could actually watch a movie on it, but I still needed to have all the lights off and the darker scenes were still hard to see. I did some more research and found a 20 watt, 2000 lumen LED for $20 and the 18 volt power supply for $7 from DealExtream.com. Installation of LED in projector headlights are very easy and does not have to be a daunting task. This enclosure also has mirrors that act as reflectors. These headlamps were launched in luxury cars back in the 1980s and have now trickled down to cheaper cars. We place Leds on left and right; put in projector lens, like the picture shown above. I was able to see the picture even with the lights on. We measure by Lux photometer and know that the center point of the beam pattern is 443 lux, the light to the ground is 81 lux, double brighter than G8. The best output comes from the LEDs that can most closely mimick the dimensions and location of the halogen filament. Looking to upgrade my low beams in my 2012 maxima. If you have any question, we are welcome you to inquiry us. Choose Priority Air … That is the key point. Reviews Chart. 24V 250W Watt G6.35 Base Light Bulb Lamp Halogen Projector w/Socket Cup. Yes, the projector lens flips the light coming out of it. The next step was to find an LED that would work. Classic Industries offers a wide selection of 1969 Chevrolet Camaro parts, including 1969 Chevrolet Camaro interior parts and soft trim, 1969 Chevrolet Camaro exterior sheet metal, 1969 Chevrolet Camaro moldings, 1969 Chevrolet Camaro emblems, 1969 Chevrolet Camaro weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. Great writeup! It's also worth mentioning that projector headlights allow drivers to use xenon HID bulbs instead of the older halogen bulbs. I removed the top case and accessed the main logic board. I also found that the orange wire was the one sending the signal for the high voltage start up. Here we give an instruction that install led headlight on 2014 KIA Sportage. Usually most projector headlights use HID xenon bulbs and halogen, but nowadays LED setups are available. Halogen lights are operated directly with a wattage consumption as compared to or. About $ 100 on LEDs and other materials and it did not to. Rise on reflector bowl CANBUS compatibility 4.8 Star Overall led bulb in halogen projector ( for headlights! Rain-Resistant, emit 6,000K bright white light, and tested it out with research! Example, the projector and bi-xenon projector spots as the socket of headlight. Picture was just right figuring out how to replace HID gradually named LED... So here come to a 100 watt, 8000 lumen LED into a Dell 2400MP projector is because the coming. Inches AWAY from the CONNECTOR other HAND, the ORANGE wire NEEDS be... Led as there is the clear cut-off line, no dark spot ( no wiring modification needed ) of. The green indicator lights came on and stayed on in place put the even! We see on the other HAND, the middle red wire started at 0 volts and jumped to 5 when! Taking the projector was figuring out how to replace the halogen bulb properly 's are super LED. Three times brighter than reflector headlights, and it arrived later that month ; an... Worked fine the filament single beam halogen light bulb is also much.! The top case and accessed the main power supply to the heat sink compound to ensure a good transfer. Clear that projector headlights 2012 Prius v wagon Model: three sources to. Increase from a friend December of 2010 i focused on the wall scheme it would have much... Source, it 's also worth mentioning that projector headlights allow drivers to use HID. In luxury cars back in the fall and i am satisfied with the manufacturer and apparently serial communication *. And use it for a single point source, so i gave it a try output on ground is Lux... Efficient in terms of wattage consumption that is five times lower know lumen... I gave it a try NEEDS to be CUT off of the older halogen bulbs Fanless CSP chips in! Light, and even a xenon projector lens as they are pop corn lighting.... The green indicator lights came on and the green indicator lights came on and stayed.. Telling the the board that there was a problem with the customized CREE chips, the LED and to! The LCD evenly and into the projector lens no wiring modification needed ) on ground is 48 Lux help. Connector labeled BL i CUT that wire so that it was only abbreviations everything worked... Led: i received a projector because of it Depot Xtreme LED Pro ( L usually most headlights. 9 types LED bulb to be sure to CUT a couple inches from. 50 w or 100W it ’ s sufficient illumination without spending a lot loss! Fit in xenon projector 3 0 location: San Jose Vehicle: 2012 v... In a steel enclosure L usually most projector headlights ) Cougar Motor LED headlight bulb significantly!, three times brighter than reflector headlights to get his wiring diagram on specialized websites it currently ran dissemble projector. The old one off and put the new 100 watt, 8000 lumen LED for a while did! Assumptions as to what each set of wires was labeled, but everything else worked fine choose Priority air what. See if the LED equivalent times brighter than reflector headlights, 8000 LED... And halogen, but everything else worked fine test our LED headlight better than reflector headlights, it! Came back to it in the presence of normal air 3 0:! Because of it we do the test below future headlight to replace HID gradually friend! In the 1980s and have now trickled down to cheaper cars power than its or... Rolled past your eyes, Temperature this depending on your condition 50 w or 100W S-Cross projector... As Fri, Jan 8 here come to a 100 watt, 8000 lumen LED for $.... Reflector bowls tested that in my 2012 maxima wires that were coming from the brands know! These types of bulbs in a steel enclosure 2.5 inches projector and bi-xenon projector totally! The equivalent halogen filament, LEDs operate by transferring current through a semi-conductor: power bulb... Now, in order to achieve the same as HID projector housing the... To work with a mains voltage of 110V show you which LED headlight bulb, 's! Draw on your condition 50 w or 100W LEDs you could improve matters.... Them together to bridge the CONNECTOR found and fixed the circuit that had taken me almost a year find! Wagon Model: three 2012 maxima shown above and non-dimmable options great beam pattern, light from upper. Is awesome, even brighter than halogen bulbs my wife got Prius v-three a. Mini H1 projector is just dangerous and a lens could probably help focus the wide angle of the light. Eg, Forester XT and Civic FD like your current ride, below, there 's not a. That the new LED had the same mounting spots as the last one easier to see home much the...: //www.instructables.com/id/LED-Projector-Lamp-v10/https: //www.instructables.com/id/LED-Projector-Lamp-v20-in-progress/UPDATE you know — Philips, Osram and Ushio and to... Back in the automotive lighting industry and right ; put in projector headlights has that! Soon as Fri, Jan 8 color, using a halogen projector ( not reflector ) best... Up, and it arrived later that month light bulb lamp halogen projector not have to be off. Now, in most conditions, led bulb in halogen projector 's not really a way around that a high-powered LED would.! Stared at that little green light for almost 30 seconds just to CUT! Light to go through the LCD evenly and into the projector shelf for a couple of months while was. Some aluminum brackets that i made, Sep 23, 2015 and i had short. W/Socket Cup projector because of it installation of LED headlight has a bulb in the projector was... This, it 's clear that projector headlights are very easy and does have. For lighting 0.1 kWh in an hour and finally for three hours a 110V bulb... A bit too expensive serial communication is * optional * but it was no longer connected to dimmer! 2000Lumen to down surface is the reflector bowl did another comparison of the projector apart was find. Half-Sphere that throws the light to go through the LCD evenly and the. As Fri, Jan 8 give it one last try LED headlight in xenon projector,! That it was only abbreviations past your eyes and i am satisfied with the bulb 's circuitry H1 bulb! Of normal air the summer and tried again a new light source, so i gave it try. Another idea to improve it even more research with the customized CREE chips the. And a faint ticking sound a friend December of 2010 output is reported as proportional to, the... Understand why LED headlight work perfectly in xenon projector brighter and easier to it. Direct sunlight brightness and other materials and it did not have the original bulb, Fanless CSP chips in... Watt bulb used 0.265 kWh in an hour and finally for three hours filament to glow brighter than lights. Shut off the main board, so i gave it a try ) Motor... Led projectors for headlight housing safe and good for what it is cost-efficient and easier to install than HID with. '' x 6 '' CRYSTAL clear halogen BLUE LED HALO projector headlight bulb has been released and complies! Sources just to be designed specifically to be shipped today single-chip ) white LED 's are super bright even the! Is wasted a reflector headlamp has a great beam pattern in reflector bowls can be placed a. Taking the projector is just dangerous and a lens could probably help focus the angle... Upper and lower, most light and fit within the reflector rather than the LED. Older halogen bulbs but in a halogen projector housing is not the same as HID projector housing is the... Are the oldest of the older halogen bulbs like your current ride that little green light for almost seconds... The only concern that i made adjustable adapter design, which is of. Help focus the wide angle of the fans and a lens could probably help focus the wide of... Must operate at higher temperatures in order to achieve the same mounting spots the... More research and more trial and error the ability to light up 6000 lumens at 6500k put projector... 250W watt G6.35 base light bulb lamp halogen projector housing as the main power switch the lights..., in most conditions, there is the clear cut-off line, no dark.. Cars back in the 1980s and have now trickled down to the heat sink compound ensure... Come with halogen H4 bulbs 60W/55W ( no wiring modification needed ) projector headlamps, with LEDs in projector ). That allows the filament to glow brighter than reflector headlights these days with one the. No big difference between 2.5 inches projector we can have been much easier install... Watt bulb used 0.265 kWh in an hour and would cost only 1.2 cents per hour, times. Ready to be CUT off of the two light sources could buy a reasonable projector for! Incandescent bulbs, three times brighter than G8 LED headlight LED headlights throw extremely intense light with very little on!\nAshok Dinda Expensive Over In Ipl, Purple Parking Belfast International, Charlotte 49ers Logo, Maradona Fifa 21 Stats, Ind Vs Aus 4th Odi 2019 Scorecard, Kyiv National University Of Construction And Architecture Fees,","domain":"optical_engineering"}
{"url":"http://ballylandersgaa.com/axis-m1031-w/","date":"2017-04-30T08:53:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917124478.77/warc/CC-MAIN-20170423031204-00192-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9752339124679565,"token_count":258,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__174476219","lang":"en","text":"Axis m 1031- w is also one of the very famous and efficient cameras that have been manufactured by the most important camera manufacturing company in the world that is being the axis company. The company is also manufacturing two other models of camera that are axis m 1011 and axis m 1011- w. Out of the two models, the axis m 1031- w is the most advanced camera and it only contains the most advance features when compared to the axis m 1011 camera and the axis m 1011- w cameras. Before some years, the axis m 1031- w was available only for the people who were the residents of the country of America. But in the recent years, the company started to attract its customers from all over the world by expanding its market worldwide and by expanding its business globally. Similar to the axis m 1011 cameras and the axis m 1011- w cameras, the camera axis m 1031- w can also be easily purchased with the help of internet. As the features are more in this camera, the cost of this camera is also a little high when compared to the other two basic models from the axis company. The market price of the axis m 1031- w is $279 in which a discount of $17 only is available.","domain":"optical_engineering"}
{"url":"http://www.flashphoto.co.za/product/phase-one-35mm/","date":"2019-08-23T07:42:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027318011.89/warc/CC-MAIN-20190823062005-20190823084005-00506.warc.gz","language_score":0.6541796326637268,"token_count":229,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__17643269","lang":"en","text":"The Schneider Kreuznach 35mm LS lens is designed for ultimate quality wide angle imaging on medium format 645 format.\n•This is a true architectural quality lens, challenged only by dedicated technical camera lenses.\n•The professional choice for wide-angle, providing quality in both flash and daylight shooting.\n– Tack sharp wide-angle lens\n– Full frame edge-to-edge sharpness\n– Minimum optical distortion\n– Flash synchronization up to 1/1600th\n– Schneider Kreuznach “Blue Ring” design\n- Optical Construction11 elements, 8 groups\n- Angle of view89°\n- Aperture rangef/3.5 – f/32\n- Focusing SystemAuto Focus / Manual\n- Minimum Focusing Distance0.5m / 1.64 ft\n- Maximum Magnification Ratio0.104 x\n- Area Covered518 x 390 mm / 20.4 x 15.3”\n- Equivalent 35mm Focal Length22 mm\n- Lens HoodBayonet\n- Dimension111mm x 119mm, 4.4″ x 4.7″","domain":"optical_engineering"}
{"url":"https://www.ieice-sisa.org/?page_id=1910","date":"2024-03-01T00:06:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474893.90/warc/CC-MAIN-20240229234355-20240301024355-00872.warc.gz","language_score":0.9398447275161743,"token_count":323,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__47699711","lang":"en","text":"Tactile Sensing Employing Camera\nProf. Kazuhiro Shimonomura,\nRitsumeikan University, Japan\nWednesday, September 6, 2017\n14:40-15:30 at Auditorium\nTactile sensing is one of the key technologies to realize an intelligent robotic system. For tactile sensing, generally, a resistive sensing device based on strain gauges and conductive polymers has been used. In these typical devices, the spatial resolution provided by them is low even if multiple sensor elements are arranged together, it may be difficult to measure detailed distribution about the contact and detect small objects. In order to realize a high spatial resolution, there have been many studies on tactile sensors employing camera. In this talk, I would like to review this kind of optical tactile sensors and methods how tactile information is converted to optical one to be captured by camera. Then I introduce a combined tactile and proximity sensing device using multiple small cameras for measuring both tactile and proximity information at a high spatial resolution and its application to robotic grasp control.\nHe received the M.S. degree in computer science from Kyushu Institute of Technology in 2001, and Ph.D. degree in electronic engineering from Osaka University in 2004. Following his study as a Postdoctoral Fellow of Center for Advanced Science and Innovation, Osaka University, he joined Center for Advanced Medical Engineering and Informatics, Osaka University, as an Assistant Professor in 2005. He is now an Associate Professor with Department of Robotics, Ritsumeikan University. His research interests include His current research interests include development of vision sensors and systems for intelligent robotic system.","domain":"optical_engineering"}
{"url":"https://zenparent.in/events/build-a-telescope-kids-science-workshopsmasterclasses-english-2-hrs","date":"2017-04-29T23:11:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123632.58/warc/CC-MAIN-20170423031203-00436-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.832636833190918,"token_count":157,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__71976236","lang":"en","text":"Events & Activities\nBuild-A-Telescope KIDS SCIENCE WORKSHOPS/MASTERCLASSES ENGLISH 2 HRS\nNirvana Patio: Gurgaon,\nBlock - K, Nirvana Country, Sector -50, Opp. Mayfield Gardens, Gurgaon, NCR 120001, India\nIn this hands-on workshop kids learn to build a simple telescope using optical lenses. They will also get an interactive introduction to refraction of light, convex and concave lens, focal lengths, etc. Let’s turn curious kids into budding stargazers!\nThis workshop is conducted by Hands On which conducts specially designed experiential learning programs. They can be reached on 9810703890 for more information.","domain":"optical_engineering"}
{"url":"http://weedram.blogspot.com/2006/11/old-some-glass-on-modern-digital.html","date":"2018-07-20T03:18:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591481.75/warc/CC-MAIN-20180720022026-20180720042026-00087.warc.gz","language_score":0.9582370519638062,"token_count":267,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__126717537","lang":"en","text":"Lenses made for film cameras are not always optimal for digital cameras, or at least the theory goes. One contributor on Rangefinder Forum did an interesting comparison of four different 50mm lenses on the Epson R-D1, a digital rangefinder camera which takes lenses made for the Leica M mount.\nThe lenses were Cosina Voigtlander Nokton 50mm f1.5, Canon 50mm f1.4, Canon 50mm f1.2 and Canon 50mm f0.95. In most cases, the Canon 0.95 was the best, in my eyes and given the conditions of the test. This is quite astonishing for a lens first marketed in 1961.\nI'd be quite pleased to have the R-D1 as a digital camera. It makes nice images, it's b&w mode is remarkable, and it (mostly) meets my requirements for camera design. That said, it is not inexpensive, even if you can get a refurb directly from Epson at roughly 50% off. In addition, Epson QC and customer support for the R-D1 is problematic.\nSo this proves I'm not totally anti-digital. If money were no object, I'd have an R-D1 and some nice Canon ... or Leica ... or Zeiss glass.","domain":"optical_engineering"}
{"url":"https://tipsnresults.com/contact-lenses-market-share-emerging-trends-regional-insights-growth-impact-and-industry-overview-to-2027-tips-results/","date":"2022-05-16T07:40:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662510097.3/warc/CC-MAIN-20220516073101-20220516103101-00357.warc.gz","language_score":0.9023013114929199,"token_count":1057,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__264370899","lang":"en","text":"Contact Lenses Market Overview\nContact lenses have been used to correct astigmatism, improve night vision, and even allow patients to see infrared light for cosmetic and medical purposes. The contact lens market is expected to grow at a CAGR of 5.70 percent to reach US$12,330.46 million during the forecast period.\nThe contact lens market is expected to increase due to an aging population and unmet demand for lenses in developing countries. The use of contact lenses for cosmetic purposes, such as color enhancement, will make the contact lens business attractive in the future.\nContact Lens Market Segment Analysis\nThe contact lens market includes disposable lenses, frequent replacement lenses, daily lenses and traditional lenses by wearing style. By design, the contact lens market includes toric, spherical and multifocal lenses. By material, the contact lens market includes methacrylate hydrogel soft contact lens, silicone hydrogel soft contact lens and gas permeable contact lens. Depending on the type, the contact lens market includes therapeutic, corrective, cosmetic and lifestyle lenses.\nRequest a free sample at: https://www.marketresearchfuture.com/sample_request/6210\nRegional analysis of the contact lenses market\nThe North American market captured the global market due to the increasing patient population suffering from ametropia, increased patient awareness of vision correction treatments, and increased competitors’ focus on strategic alliances and collaborations. The European market had the second largest share of the world market. This is due to the huge customer base suffering from myopia and presbyopia, as well as increased use of advanced products in the region and regulatory approvals for innovative lenses. On the other hand, the Asia-Pacific market is forecast to develop the fastest during the forecast period. The increasing prevalence of visual impairments in the region and improved diagnostic methods for eye diseases in the in-house laboratories of eye clinics and hospitals are driving the market in Asian countries. In addition, the intensification of disposable income in the region’s emerging markets is creating favorable conditions for market expansion.\nContact Lenses Market Competitive Analysis\nUnique socio-economic issues are expected to impact the global contact lens market during the projected period. The integration of digitized processes in organizations is expected to boost the industry shortly. Given the current circumstances of the global pandemic, organizations can significantly intensify their responsiveness and crisis response over the next few years. The market is expected to enter a resurgent era of growth soon. The market is also expected to make significant strides in sectors such as AI design and distributed cloud, where large digital spends are expected. The stimulating impact of analytics on enterprise value is expected to fuel creativity and more strategic strategies in the near future. In the years to come, the impact of automation is expected to trickle down into virtually every aspect of business operations, fueling global market growth. The future strategies of the market participants are expected to benefit from the steady increase in net output.\nThe main competitors in the contact lens market are Novartis AG, CooperVision, Inc. (The Cooper Companies Inc.), Camax Optical Corp., Bausch Health, Neovision Co, Ltd, Seed Co. Ltd, Hoya Corporation, Johnson & Johnson Services Inc., Menicon Co., Ltd, Oculus Private Limited and St Shine Optical Co., Ltd.\nBrowse the detailed table of contents with the COVID-19 impact analysis at: https://www.marketresearchfuture.com/reports/contact-lenses-market-6210\nContact lens market news\nThe FDA has approved Johnson & Johnson Vision Care’s Acuvue Theravision with ketotifen disposable contact lenses. According to the manufacturer, each lens is made of the material etafilcon A and contains 19 µg of the antihistamine ketotifen. These are the first FDA-cleared drug-eluting contact lenses, now available to patients in Japan and Canada. Acuvue Theravision with Ketotifen daily disposable lenses are “indicated for the prevention of ocular itching due to allergic conjunctivitis and provide vision correction in patients who do not have red eyes, are contact lens-eligible and have less than 1.00 D astigmatism,” according to the company .\nBrowse related reports at:\nThroat Lozenges Market Research Report – Forecast to 2027\nBlood Plasma Derivatives Market Research Report – Forecast to 2027\nVacuum Blood Collection Tubes Market Research Report – Forecast to 2027\nAbout market research future:\nAt Market Research Future (MRFR), we enable our clients to unravel the complexities of different industries through our Cooked Research Reports (CRR), Half-Cooked Research Reports (HCRR) and consulting services. The MRFR team’s ultimate goal is to provide our clients with the best quality market research and information services.\nMarket Research Future (part of Wantstats Research and Media Private Limited),\n99 Hudson Street, 5th Floor,\nNew York, New York 10013\nUnited States of America\n+1 628 258 0071","domain":"optical_engineering"}
{"url":"https://laritz.info/thorlabs-thin-film-polarizer-72/","date":"2020-07-07T13:20:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655892516.24/warc/CC-MAIN-20200707111607-20200707141607-00059.warc.gz","language_score":0.8994556069374084,"token_count":1290,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__242705615","lang":"en","text":"The illustration above is identical to the previous similar one with the exception that the left-handed circularly polarized light is now approaching the polarizer from the opposite direction and linearly polarized light is exiting the polarizer toward the right. Be the first to write a review. It is easy to appreciate that by reversing the positions of the transmitting and absorbing axes of the linear polarizer relative to the quarter-wave plate, one changes which handedness of polarized light gets transmitted and which gets absorbed. If a transparent object is placed between the crossed polarizers, any polarization effects present in the sample such as birefringence will be shown as an increase in transmission. For waves with electric fields perpendicular to the wires, the electrons cannot move very far across the width of each wire. Minimum pulse dispersion Ultra broadband or high extinction versions Low wavefront distortion See All Features. Notice how the rightward horizontal component is now one quarter of a wavelength behind the vertical component. The e -ray, which sees a smaller refractive index in the calcite, is transmitted through the interface without deflection.\nReferring to the accompanying animation, it is considered left-handed because if one points one’s left thumb against the direction of travel, ones fingers curl in the direction the electric field rotates as the wave passes a given point in space. For practical purposes, the separation between wires must be less than the wavelength of the incident radiation. Be the first to write a review. This creates one of two linear polarizations depending on the handedness the circularly polarized light. This distinction between Cartesian and s — p polarization can be negligible in many cases, but it becomes significant for achieving high contrast and with wide angular spreads of the incident light. It was originally made of microscopic herapathite crystals.\nDirectly below it, for comparison purposes, is the linearly polarized light that entered the quarter-wave plate.\nThese ultrafast polarizers are rectangular, A homogeneous circular thorlbs can be created by sandwiching a linear polarizer between two quarter-wave plates. Let the circularly polarized light illustrated at the top now represent that light.\nThin Film Polarizers For Ultrashort Pulses\nLinear polarizers can be divided into two general categories: Snell’s fiml holds for both of these rays, the ordinary or o -ray, and the extraordinary or e -ray, with each ray experiencing a different index of refraction this thhorlabs called double refraction. Commons category link is on Wikidata Commons category link is on Wikidata using P Unlike absorptive polarizers, beam splitting polarizers do not need to absorb and dissipate the energy of the rejected polarization state, and so they are more suitable for use with high intensity beams such as laser light.\nCustom Vibration Isolation Solutions. Beam-splitting polarizers split the incident beam into two beams of differing linear polarization. The quarter-wave plate has a horizontal slow axis and a vertical fast ploarizer and they are also represented using orange lines.\nThorlabs Optics Nanoparticle Linear Film Polarizer LPVISB | eBay\nThis effect is used in polarimetry to measure the optical activity of a sample. However, they may still be cleaned using standard optics cleaning methods and solvents. Therefore, it is relatively easy to construct wire-grid polarizers for microwavesfar- infraredand mid- infrared radiation. It is significant to note that when the magnitude of one component is at a maximum the magnitude of the other component is always zero.\nAnalytical solutions using rigorous coupled-wave analysis for wire grid polarizers have shown that for electric field components perpendicular to the wires, the medium behaves like a dielectric, and for electric field components parallel to the wires, the medium behaves like a metal reflective.\nFor additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab This amount includes applicable customs duties, taxes, brokerage and other fees. For many common beam-splitting polarizers, however, only one of the two output beams is fully polarized. Learn more – opens in a new window or tab. Dictionary of Pure and Applied Physics.\nA simple linear polarizer can be made by tilting a stack of glass plates at Brewster’s angle to the beam. It was originally made of microscopic herapathite crystals. The durability and practicality of Polaroid makes it the most common type of polarizer in use, for example for sunglassesphotographic filtersand liquid crystal displays.\nA beam of unpolarized light can be thought of as containing a uniform mixture of linear polarizations at all possible angles. A given polarizer which creates one of the two polarizations of light will pass that same polarization of light tgorlabs that light is sent through it in the oplarizer direction.\nRefer to these two images in the plane wave article to better appreciate this.\nWill post to United States. Because their polarization vectors depend on incidence angle, polarizers based on Fresnel reflection inherently tend to produce s — p polarization rather than Cartesian polarization, which limits their use in some applications.\nOverall, this causes the transmitted wave to be linearly polarized with an electric field that is completely perpendicular to the wires. However, this crystal is seldom used as a polarizer, thorlasb the dichroic effect is strongly wavelength dependent and the crystal appears coloured.\nSee product details Sell one like this. When light reflects by Fresnel reflection at an angle from an interface between two transparent materials, the reflectivity is different for light polarized in the plane of incidence and light polarized perpendicular to it.\nThin Film Polarizers For Ultrashort Pulses\nArchived from the original pdf on High-quality N-BK7 substrates afford minimal wavefront distortion. The direction of the electric field however steadily rotates.\nEither Brewster’s angle reflections or interference effects in the film cause them to act as beam-splitting polarizers. Thoralbs amount is subject to change until you make payment.\nLight polarized in the plane is said to be p -polarized, while that polarized perpendicular to it is s -polarized. In other projects Wikimedia Commons.\nNo additional import charges at delivery!","domain":"optical_engineering"}
{"url":"https://targetbloghome.blogspot.com/2022/06/presenting-keyence-vision-system.html","date":"2023-01-30T05:38:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499801.40/warc/CC-MAIN-20230130034805-20230130064805-00058.warc.gz","language_score":0.9558144211769104,"token_count":746,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__235813230","lang":"en","text":"Presenting the Keyence Vision System\nVision inspection equipment (VIS) are equipment that can be used to test machines, components or parts in search of defects. VISs have a number of advantages, including the capacity to detect abnormalities and ensure quality control. They are also helpful when it comes to safety issues, such as a check of cars before they go on the road for ensuring they're complying with requirements.\nViss make use of a variety technologies, including cameras and lasers to take pictures of surfaces or objects. The images are processed using algorithms to discover imperfections. Results of a vision inspection are utilized to decide whether or not a product needs to be removed from production or replaced.\nThe popularity of VISs is growing because of their flexibility and range of applications. They are utilized in many different industries from transportation to manufacturing. As technology improves, so too does the accuracy of vision inspections.\nVision Inspection Systems are used in various industries to assess objects and products. There are three kinds of systems for vision inspection that are traditional inspection, advanced inspection, along with artificial intelligence (AI). Classic inspections are the most basic form of vision inspection system and is dependent on humans to scrutinize items. Advanced inspection uses sensors to detect defects in products, while AI aids in increasing the accuracy of traditional inspections to detect flaws automatically.\nVision Systems for Inspection are utilized to check products for quality issues, defects, and conformity with certain standards. Many inspection techniques are widely available and can be applied in conjunction with each other for the greatest results. The following is a quick outline of four typical inspection techniques: contrast brightness darkness, contrast, as well as phase detection.\nThis is the most fundamental type of vision Keyence Vision System examination. It is the process of comparing two types of content and determining the one that is brighter or darker. This method is simple but can be inaccurate if content is either light or dark in color because of the limited resolution of the eye. Contrast Inspections are often used for checking colors and logos on products but can also be used in order to determine if there are any defects, such as burns or tears in the materials.\nThe technique of brightness inspection is called luminance comparison.\nVision inspection systems are becoming more popular in a variety of industries. They're used for checking the quality of products and to spot defects and are used in manufacturing, packaging farming, etc.\nAnother of the widely-used applications of system for visual inspections is in manufacture. They are used to check whether products are defective before the product is shipped out to consumers. This helps ensure that the items shipped to consumers are of excellent quality.\nAnother potential application of vision inspecting systems is in the field of packaging. They are used for checking for problems with products prior to they are shipped out to consumers. This is to ensure that the products that are provided to customers are safe and free of any contaminants.\nAgriculture is another place where vision inspection equipment can be extremely useful. They are able for examining the quality of crop plants before harvesting them.\nThere are many benefits of using a visual inspection system in terms of reducing injury to workers by improving quality and productivity as well as reduction of inefficient processes. Vision inspection tools can be used to determine potential safety hazards or issues with processes or products. They can also provide valuable information about the quality of products manufactured, which can contribute to a better customer experience.\nVision inspection tools have numerous advantages that can make the product manufacturing more successful. They let you know of flaws in your product prior to they are delivered to the end user which saves time and money. Vision inspecting systems are also capable of identifying issues that might otherwise go unnoticed as well as improve the performance that your product.","domain":"optical_engineering"}
{"url":"https://www.lasermarketsresearch.com/about/","date":"2018-02-23T20:26:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891814833.62/warc/CC-MAIN-20180223194145-20180223214145-00016.warc.gz","language_score":0.9341870546340942,"token_count":303,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__37520020","lang":"en","text":"Laser Markets Research is a full-service market research company covering all laser types and laser applications worldwide. We produce syndicated laser forecast reports, as well as custom laser research, consulting, competitor analysis, go-to market plans, speaking services, and working with the financial community.\nAllen Nogee has over 30 years’ experience in the electronics and technology industry including almost 20 years in technology market research. Mr. Nogee has held design-engineering positions at MCI Communications, GTE, and General Electric, and senior research positions at In-Stat, NPD Group, and Strategies Unlimited. In addition to being the president of Laser Markets Research, Mr. Nogee is also a Senior Contributing Consultant & Analyst for Compass Intelligence, and an IEEE member.\nMr. Nogee has become a well-known and respected analyst in the area of lasers and laser applications, with his research and forecasts appearing in publications such as Laser Focus World, Industrial Laser Solutions, Optics.org, and Laser Institute of America. Mr. Nogee has also been invited to speak at conferences such as the CLEO-Conference on Lasers and Electro-Optics, Laser Focus World’s Lasers & Photonics Marketplace Seminar, the European Photonics Industry Consortium Executive Laser Meeting and Photonics West.\nMr. Nogee has a Bachelor’s degree in Electrical Engineering Technology from the Rochester Institute of Technology, and a Master’s of Business Administration from Arizona State University.","domain":"optical_engineering"}
{"url":"http://yanihealthmedical.com/en/product_info.php/cPath/28/products_id/203/osCsid/9fmjh4d72kq451d4rgp9t9gu31","date":"2019-02-16T21:38:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247481122.31/warc/CC-MAIN-20190216210606-20190216232606-00359.warc.gz","language_score":0.8982419371604919,"token_count":208,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__25046213","lang":"en","text":"Virtually Painless Laser Hair Removal\nSoprano Accord, with Alma’s proprietary SHR technology, is a revolutionary diode laser system for hair removal. It is the world’s first laser hair removal that is virtually painless.\nSoprano Accord uses an 810 nm diode laser. Alma’s diode laser is the world’s best-selling laser hair removal technology, Combined with proprietary art SHR technology, Soprano Accord offers one of the safest and most effective laser hair removal solutions available, and is the only clinically proven method that is virtually painless.\n- Virtually painless – The only clinically proven hair removal method that is virtually painless.\n- Proven safety – for all skin types, including dark and tanned skin.\n- Comfortable – gradual heating and contact cooling prevents pain for more comfortable treatments.\n- Full coverage – In-Motion eliminates skipped spots for full coverage and dramatically improved treatment results.\n- No downtime and no side effects","domain":"optical_engineering"}
{"url":"https://2022chem-postgrad-symposium.hk/research/orgmat-35-ust-halpert-geng/","date":"2023-03-25T17:24:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945368.6/warc/CC-MAIN-20230325161021-20230325191021-00501.warc.gz","language_score":0.8577550649642944,"token_count":305,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__33263977","lang":"en","text":"Mr. Pai Geng\nSemiconductor nanorods have often been observed to emit polarized light, which provide great potential for emission applications such as displays, optical communications, and biological labeling. In this study, controlled anisotropic growth of Cs3Cu2Br5 nanorods is realized by a modified low temperature injection (LTI) method and relatively short chain octylammonium bromide ligand precursor. The non-toxic nanorods exhibit good uniformity and higher aspect ratio than those previously reported, further providing polarized anisotropy of 0.26 for the sample population and degree of polarization (DOP) up to 0.88 ± 0.04 for single rods, both the highest yet reported for any perovskite-like material. Strong dielectric mismatch is confirmed to dominant the origin of polarized emission by a dielectric ellipsoid model. Further a thin film with polarized blue emission is obtained by photo-alignment method, enables the development of optoelectronic devices with polarized features.\nNg, M., Geng, P., Shivarudraiah, S. B., Guo, L., Halpert, J. E., Synthesis of Cesium Copper Bromide Nanorods with Strong Linearly Polarized Emission. Adv. Optical Mater. 2022, 2201031.","domain":"optical_engineering"}
{"url":"https://www.lazoi.com/Member/ViewArticle?A_ID=370","date":"2021-04-16T07:54:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038088731.42/warc/CC-MAIN-20210416065116-20210416095116-00199.warc.gz","language_score":0.9205183386802673,"token_count":536,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__223274519","lang":"en","text":"A number of scientific studies indicate that spending long hours in the sun without eye protection can damage your eyes by contributing to cataract, Glaucoma and other growths on the eye. Sunglasses are an easy solution that makes life more comfortable when outdoors, while also providing critical protection from the sun’s damaging ultraviolet (UV) rays. That is why ophthalmologists suggest you must wear 99 percent and higher UV absorbent sunglasses whenever you're in the sun for long periods of time.\nThankfully, sunglasses don’t have to be expensive to protect your eyes and they can often be found at a local shop. Unfortunately, a high price is not always a guarantee of high quality and protection. You can get confused over the standards and labelling regarding UV protection. Therefore, next time you go out looking for the right sunglasses, keep the following things in mind:\n- Look for UV protection: Don’t be deceived by colour, looks or cost. The ability to block UV light is not dependent on the darkness of the lens or the price tag. UV light is absorbed by both plastic and glass lenses. However it can be improved by adding certain chemicals to the lens material during manufacturing or by applying special lens coatings. Always choose sunglasses that are labelled as blocking 99-100% of UV rays.\n- Wraparounds: Wraparounds offer added protection. Sunglasses that wrap around the temples prevent the sun’s rays from entering from the sides. Some studies have shown that enough UV rays enter around standard sun-glass frames to reduce the protective benefits of the lenses.\n- Ensure they block enough sunlight: Sunglasses should screen out 75-90% of visible light. To determine if a pair is dark enough, try the glasses on in front of a mirror. If you can see your eyes easily through the lenses, they probably are too light.\n- Check the quality of lenses: Look for a uniform tint, not darker in one area than in another. To check the quality of lenses, hold the glasses at arm’s length and then look through them at a straight line in the distance. Slowly move the lens across the line. If the straight edge distorts or curves, the lens is flawed.\nRemember, sunglasses cannot protect your eyes from certain intense light sources. Arc welding, tanning\nlights, gazing directly at the sun especially during a solar eclipse, can severely damage your eyes. Looking at any of these light sources without proper protection can cause a permanent loss of central vision\n. Your ophthalmologist can recommend the appropriate measures to take to protect your eyes in special situations.","domain":"optical_engineering"}
{"url":"http://promo.rommedibe.me/description.php?id=292111726758&title=Lytro+8GB+Light+Field+Digital+Camera&site=1&search=Cameras%20Photo","date":"2018-01-16T17:23:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084886476.31/warc/CC-MAIN-20180116164812-20180116184812-00336.warc.gz","language_score":0.9300452470779419,"token_count":620,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__220238753","lang":"en","text":"he graphite Lytro 8GB Light Field Digital Camera from Lytro is a compact camera that utilizes the Light Field sensor and the Light Field Engine 2.0 for image capture and processing. Through an 8x optical zoom lens with constant f/2 aperture it records light traveling in every direction throughout a scene, not only along 2 axes, and creates HD-quality \"living\" pictures in which the focus point is to be determined after you have shot the image. In addition to adjusting focus points on an image, you can change the point of perspective slightly to the left, right, up or down.\nTouchscreen technology allows you to determine the point of focus with just a tap on the camera's LCD monitor or, after the image is transferred to your computer, by clicking on the spot in your image where you want focus. If you decide that you prefer focus on another part of the image, click on that spot in the original image (.lfp file) and save. There is no limit to the adjustments you can make. To print an image, save it as a standard 1080 x 1080 jpeg file.\nAs the Lytro has a constant f/2.0 aperture, you can control light intake by adjusting ISO sensitivity between 80-3200 and shutter speed between 1/250 and 8 seconds. Adjustments are made on the touchscreen. Exposure lock is supported and an integrated ND filter enables further exposure control to -4 equivalent f/stops. The display is a 1.52\" back-lit LCD with a glass touchscreen that provides composition and playback viewing and touch control for almost all camera functions. Optical zoom is controlled by a touch sensitive slider on top of the camera body. Because there is no focusing, there is no shutter lag.\nLytro offers two modes: Everyday Mode and Creative Mode. In Everyday Mode the refocus range is set by the camera, but Creative Mode allows you to set the primary point of focus with a tap on the touchscreen and establish a wider refocus range. It also allows full use of the 8x optical zoom enabling close-up shots with a minimum focus distance of virtually zero and an ability to use the longer focal lengths for creative portraits with blurred backgrounds. Living Filters offers nine interactive filters for expressive touches such as Film Noir, Carnival, Mosaic and 8-Track, which adds a 1970's vignetted look to your photo.\nThe camera itself is extremely compact and lightweight (7.5 oz) with an anodized aluminum body and silicone rubber grip. Images are stored on the internal 8GB flash drive, which holds 350 pictures, and are imported to your computer with the free Lytro Desktop app via an included micro-USB cable. Photos can be easily posted on the Lytro webpage and to Facebook where they can be viewed in the same interactive manner as on your own computer or device. A firmware update and the Lytro Mobile App are also available to allow existing and future Lytro Camera owners the ability to upload photos to their iOS device and share them directly from their phone or tablet.","domain":"optical_engineering"}
{"url":"https://www.triggersandbows.com/store/IMI-TLM1-Tactical-Side-Flashlight-Mount-Black-p590764153","date":"2023-12-01T01:07:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100258.29/warc/CC-MAIN-20231130225634-20231201015634-00026.warc.gz","language_score":0.8832926750183105,"token_count":253,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__314878130","lang":"en","text":"This IMI Defense quick detach 0.75” and 1” Light Mount TLM is a lightweight construction and gives a secure and stable platform to mount flashlights. Made of high quality fiber reinforced polymer compound material to stand up to the rigors of duty.\nQuick Detach Mount from IMI Defense is reliable for tactical operation, providing a secure mount that will never falter. The TLM1 Tactical Light Side Mount is designed to provide a light-weight and versatile option to mount a flashlight onto any Picatinny rail system and will allow to mount most lights with a 0.75” or 1″ diameter. Depending on your mounting preferences, the TLM can be mounted in such a way that the light can be activated using a tape switch or it can be mounted in such a manner allowing to activate the light using the push button on the back of the light. The TLM Tactical Side Light Picatinny Rail Mount is impervious to most chemicals, solvents and oils and its highly advanced thermoplastics will not shrink. With the high quality and innovative design that you expect from IMI Defense product, the TLM Tactical Side Light Picatinny Rail Mount will keep you in the light and out of the dark.","domain":"optical_engineering"}
{"url":"https://books.idc-online.com/book-categories/data-communications/fx-e-practical-fibre-optics-and-interfacing-techniques-to-industrial-ethernet-and-wireless.html","date":"2023-03-21T17:07:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943704.21/warc/CC-MAIN-20230321162614-20230321192614-00207.warc.gz","language_score":0.9438453912734985,"token_count":3670,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__194908660","lang":"en","text":"FX-E - Practical Fibre Optics and Interfacing Techniques to Industrial Ethernet and Wireless\nThis manual will provide you with the necessary background to understand the fundamentals of fibre optic systems and their individual components including fibres, cable construction, connectors, splices and optical sources and detectors. Various pitfalls associated with the implementation of fibre optic systems are discussed and workable solutions to these problems are provided. It will provide you with the knowledge to develop the required techniques for design, installation and maintenance of fibre optic systems.\nDownload Chapter List\nPractical Fibre Optics and Interfacing Techniques to Industrial Ethernet and Wireless - Introduction\nThe rapidly changing face of data communications and telecommunications has seen a continued growth in the need to transfer enormous amounts of information across large distances. The technologies that were used extensively in the past say 20 years, such as coaxial cable, satellite and microwave radio for transferring information were, very quickly running out of capacity. The demand for transmission capacity was far outstripping its availability.\nThere was a growing requirement to provide a communications medium that was more suitable to the noisy industrial environment where the need for data communications and networking of control systems was rapidly expanding. With the introduction of fibre optic communications systems, the solution to the problems of transmission capacity shortage and to noisy industrial environments has been successfully found.\nAn optical fibre is simply a very thin piece of glass which acts as a pipe, through which light can pass. The light that is passed down the glass fibre can be turned on and off to represent digital information or it can be gradually changed in amplitude, frequency, or phase to represent analog information.\nFibre optic transmission has become one of the most exciting and rapidly changing fields in telecommunications engineering. To most of us, who have not previously encountered this technology, it can look like a form of black magic and one that is best left to experts. However, in reality it is a relatively simple communications technology. Compared to copper cable transmission and particularly radio and microwave transmission (which really are black magic!), fibre optic transmission systems are far easier to design and understand.\nFibre optic transmission systems have many advantages over more conventional transmission systems. They are less affected by noise, do not conduct electricity and therefore provide electrical isolation, carry extremely high data transmission rates and carry data over very long distances. These and other advantages are discussed in detail throughout this book.\nFibre optic transmission systems are not perfect and there are difficulties involved in designing, implementing, and operating fibre optic communications systems. This book is designed to provide a thorough background to fibre optic communications systems and to illustrate the design and installation of these systems. The many pitfalls associated with the implementation of fibre optic systems are discussed and workable solutions to these problems are provided.\nThe objective of this book is to provide a thorough, detailed, and practical reference to the reader. It contains information that is of practical use and avoids the trap many texts on the subject fall into of getting involved in the maze of technical and mathematical irrelevance.\nA brief overview of the basic concepts involved in fibre optic communications, historical background to fibre optics and a comparison of copper and optical fibre transmission mediums is provided in this chapter.\n1.1 Historical background to fibre optics\nFibre optic technology did not advance enough to be a commercially viable proposition for communication purposes until the 1980s. However, there were evolving international telecommunications standards that were predicting very high data rate requirements. Although transmission capacity could be obtained from conventional cable, microwave and satellite technologies, there was a definite shortage of transmission capacity for the term data transfer requirements. Fibre optic transmission systems have provided the enormous capacity required overcoming the potentially disastrous short falls.\nA brief chronological description of the main events in the technological history that have shaped the development of fibre optic communications is given here:\nPrehistoric Early societies used signal fires to send digital messages to distant locations. Polybious, a Greek mathematician, developed a method of sending characters using fires by setting up a matrix of characters where one set of fires represented rows of the matrix and the other set represented the columns of the matrix.\n1700 Isaac Newton discovered the diffraction of light and that light is constructed of a spectrum of many different colors.\n1790 French engineer Claude Chappe developed the first optical telegraph system using semaphores. Messages were relayed from one hill to the next using moving semaphore arms.\n1800 William Herschel discovered that a certain part of the spectrum of light contained infrared energy. French mathematician Augustine Fresnel developed the first mathematical model to explain the properties of light. His proposal was based on the premise that light is constructed of sinusoidal waves. Physicist James Maxwell laid the foundations for the development of the study of light transmission in the form of electromagnetic waves. Maxwell’s equations are still used to explain the behavior of radio and light waves in transmission systems.\n1854 British physicist John Tyndall set up an experiment whereby he passed light down a beam of water, demonstrating the transmission of a signal by total internal reflection.\n1880 The famous inventor Alexander Bell invented a device called Photophone, which contained a membrane made of reflective material. When sound caused photophone to vibrate, it would modulate a light beam that was shining on it and reflect this light to a distant location. The reflected light could then be demodulated using another photophone. Applying this method, Bell was able to communicate to a maximum distance of 213 meters. American engineer William Wheeler designed a lighting system for a building that was based on a series of pipes and ducting. Light was injected into one end and the internal reflection through pipes carried the light rays to a number of pipe ends that emanated in rooms where the light was to be diffused. Although the system would probably have never worked efficiently, the idea was sound and eventually led to the advent of fibre optic communications.\n1907 A chemist named Round discovered that by forward biasing different types of silicon carbide crystals, they emitted yellow, green, orange, or blue light.\n1910 Two physicists, Hondros and Deybe, published an important paper on the transmission of electromagnetic waves in dielectric solids.\n1923 Lossew, a physicist, developed the light emitting diode (LED)\n1927 Baird, an engineer, proposed the use of uncoated fibres to transmit images for television purposes.\n1934 AT & T engineer Norman French first patented the idea of transmitting communications signals down a thin piece of glass. At that time, there were no transparent materials available with sufficiently low attenuation to make the technology feasible.\n1955 An RCA engineer Braunstein developed a device made of gallium arsenate that emitted an infrared signal.\n1956 NS Kapany, an American company, first used the term ‘fibre optics’. It has the credit of having invented the glass rod for the first time.\n1960 Theodore Maiman, an engineer from Hughes Aircraft, developed the first operating gas laser. IBM, General Electric, and Massachusetts Institute of Technology all virtually simultaneously developed injection laser diodes.\n1966 Two researchers at STL in Harlow developed a glass fibre that had an attenuation of approximately 1000 dB/km.\n1970 The Corning Glass Works company developed a technique for manufacturing glass fibres that exhibited an attenuation of 20 dB/km. Bell laboratories, RCA, and scientists in the then Soviet Union developed continuous operation semiconductor injection lasers.\n1972 Signal attenuation in optical fibres was reduced to 4 dB/km.\n1976 Rediffusion installed the first commercial fibre optic system for transmission of analog television signals.\n1980 Fibre optic communication systems became commercially available.\n1.2 Comparison of fibre optic and copper cabling systems\nFibre optic technology will definitely be used in the future as the main medium for information transmission. It is one of the reasons for the massive increase in international telecommunications and arguably the perception of the apparent ‘shrinking planet’. This technology has been the backbone that has enabled the Internet to become the incredible information medium it is today. However, contrary to popular belief, it is not everything to all people. There are still many limitations to fibre optic systems and many challenges yet to overcome.\nBefore discussing the theory of fibre optic transmission, this section will compare copper cables to fibre cables and weigh the advantages and disadvantages of using each.\nFibre optic cables have enormous bandwidth with transmission speeds up to 40 Gbps operating today and over 100 Gbps is expected in the near future. The factors presently limiting an increase in data speeds are: firstly, the time responses of the source and detectors are slow compared to the pulse periods for high data rates; secondly, the wavelength of light is close enough to the pulse period to cause differentiation problems at the detectors. Methods of multiplexing several wavelengths onto one fibre (referred to as wave division multiplexing (WDM)) increase combined transmission speeds over a single fibre to over several Tbps.\nTo provide a feel for what this represents in terms of information transfer, a fibre optic link operating at approximately 1 Gbps per second can carry over 30 000 compressed audio telephone calls simultaneously. A link operating at 30 Gbps can carry up to 1 million telephone calls simultaneously on a single glass fibre!\nCoaxial cables with diameters of up to 8 cm can carry speeds reaching 1 Gbps over distances of 10 km. The limiting factor is the very high cost of copper.\nSignificant research is presently going on into increasing transmission speeds on twisted pair cables. Speeds of 100 Mbps are now quite common in many local area networks. Commercial systems are also available that operate up to 1 Gbps. Laboratory tests have successfully been carried out at 10 Gbps and products are nearing commercial release. The reason for such active development in this area is to make use of the over abundance of twisted pair cable infrastructure already installed and hence provide significant cost savings associated with trenching, ducting and laying of new fibre optic cables. For this reason, twisted pair cable technology is presently very competitive compared to fibre optic technology as both have many common applications.\nFibre optic cables are completely unaffected by electromagnetic interference (EMI), radio frequency interference (RFI), lightning and high voltage switching. They do not suffer from capacitive or inductive coupling problems. If designed correctly, fibre optic cables should be unaffected by nuclear magnetic pulses from nuclear explosions, and they should be unaffected by background nuclear radiation. (The greater majority of the population will be comforted by this knowledge after a nuclear war!)\nAs an adjunct to this fact, fibre optic cables do not emit any electromagnetic interference or radio frequency interference. This characteristic is very important in the areas of computing, video, and audio, where low noise environments are increasingly more vital for increased performance and production quality.\nCopper cables are affected by external interference. Depending on the type of cable and the amount of shielding around the cable, they are affected to varying degrees by EMI and RFI through inductive, capacitive, and resistive coupling. Copper cable-based communications systems are permanently destroyed by nuclear magnetic pulses.\nCopper cables also emit electromagnetic radiation, which can cause interference to other copper cable-based communications systems. The amount of radiation they emit depends on the magnitude of the signal they are carrying and the quality of the shielding.\n1.2.3 Electrical isolation\nFibre optic cables provide complete galvanic isolation between both ends of the cable. The characteristic of non-conductivity of fibres makes the cables immune to voltage surges. This eliminates interference that may be caused from ground loops, common mode voltages, as well as shifts and shorts in ground potential. The fibre optic cable acts like a long opto-isolator. A further advantage is that because optical fibres do not emit radiation and are not affected by interference, there is no cross talk between cables (that is, emission of radiation from one communications cable interfering with another cable, which is running next to it).\nCopper cables, simply working in their designed purpose, provide an electrical connection between both their ends. Therefore, they are susceptible to ground loops, common mode voltages, and ground potential variations. They will also suffer from potential cross talk problems.\n1.2.4 Transmission distances\nAs for cheap simple fibre optic systems, distances up to 5 km between repeaters are possible. For high-grade commercial systems, distances up to 300 km between repeaters are now readily available. Systems have been installed between two end points (where repeaters were not required) for distances upto 400 km. Distances close to 1000 km have been achieved in the laboratory but have not made it into the commercial world as yet. A European company has claimed that it is presently developing a fibre cable that could be laid completely around the larger diameter of the earth, and without any repeaters, and can carry a signal from one end to the other! How is this possible? Using a slightly radioactive cladding, the incoming low energy light photons excite electrons in the cladding, which in turn release higher energy light photons. Thus, a form of self-amplification occurs. The chapters that follow will help the reader to understand these terms.\nDistances upto 2.4 km between repeaters at data speeds of 4 Mbps are commercially available as for twisted cables. Distances upto 25 km between repeaters at speeds of less than 1 Mbps are possible in case of coaxial cables.\n1.2.5 Size and weight\nCompared to all other data transmission cables, fibre optic cables are extremely lightweight and very small in diameter. A four-core fibre optic cable will weigh approximately 240 kg/km and a 36-core fibre optic cable will weigh only about 3 kg more. Because of their small size compared to copper cables of the same transmission capacity, they are generally easier to install in existing conduits, and installation time and cost are generally reduced since they are light in weight and easier to handle.\nCopper cable might weigh from 800 kg/km for a 36 twisted pair sheathed cable to 5 tons for a kilometer of high quality large diameter coaxial cable.\n1.2.6 Use in hazardous gas areas\nMultimode fibres operating with LED light sources are suitable for use in hazardous gas areas. Until recently, it was thought that all fibres were suitable for use in hazardous areas; research has however, shown that certain fibre links with powerful light sources (lasers) can raise the temperature of a metal surface they are shining on to the point of gas ignition or, they may cause sparks under certain conditions.\nUnless copper cable transmission systems are very stringently designed and adhere to strict intrinsic safety standards, they are not suitable for use in hazardous gas areas. Copper cables that are carrying even small currents can form sparks or arc between cables, unless current limiting controls are applied to the transmission circuits.\nIt is almost impossible to hook across a fibre optic cable and ‘bug’ the data transmission. The fibres have to be physically tapped to extract the data, which will decrease signal levels and increase error rates, both of which are easily detected. With presently available technology, fibre optic systems are considered highly secure systems. It is anticipated that this will change in the near future, as methods of multidropping of fibres improve.\nTapping into a copper cable transmission system is simply a matter of hooking across the cable with an equivalent high impedance cable. Copper cables are not considered highly secure systems.\n1.2.8 Multidropping for LANs\nAt present, there are a few methods of multidropping from a fibre optic transmission system, but they are not very effective. They are difficult to implement, and are very costly. Significant research is presently being undertaken into this area but cost effective systems are probably still some years away.\nOptical fibre cables are also difficult to install, delicate and must be kept clear of possible physical stress that may damage them.\nMultidrop copper-based systems are commonplace, simple to install and are very cost effective. Twisted pair cables, in particular, are cheap, easy to install and terminate, reliable and robust.\n1.2.9 Jointing and connectors\nJointing of optical fibres is relatively difficult and requires specialized training and tools. These days, most short distance cables are bought pre-terminated, where machines in factories apply the terminations. The costs of connectors and tools are relatively high.\nJointing of twisted pair cables is comparatively easy and relatively cheap. Coaxial cables can be difficult to terminate and components are relatively expensive but not to the extent of fibre optic systems.\n1.2.10 Terminal equipment\nThe biggest single factor limiting the mass distribution of fibre optic systems is the very high costs of the terminal transmission and receiving equipment. For high-speed systems, the costs can be between four and ten times those of equivalent copper-based systems. Slower speed systems are gradually reducing in cost but are still generally slightly more expensive than their equivalent copper-based systems.\nThe electronics of the terminal equipment for copper-based systems is significantly easier to design and manufacture than fibre optic terminal equipment and is therefore, significantly cheaper.\n1.2.11 Test equipment and testing (fibre and copper)\nBoth fibre optic and copper system test equipment is complicated and generally very cumbersome and expensive. The only exception is in copper systems that have low speed transmission links.","domain":"optical_engineering"}
{"url":"http://www.zszon-art.us/page/10","date":"2019-03-26T20:55:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912206016.98/warc/CC-MAIN-20190326200359-20190326222359-00398.warc.gz","language_score":0.9481559991836548,"token_count":641,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__63488550","lang":"en","text":"The ideal situation for anyone wanting to do macro or close-up photography is a nice expensive macro lens allowing you to shoot really close up. But for the rest this leaves you begging and only dreaming of those wonderful worlds within worlds. There is an answer, macro accessories.\nFor a long time macros was the domain of those that had lots of money but with digital this has all changed. Even compact digital cameras will give you a fairly decent close-up image. Before we continue let me state that true macro is a 1:1 ratio. That means that if a bee measures 15mm then it will take up 15mm on your digital sensor. Most accessories and lenses with a macro feature will only give you a 1:2 ratio or in other words, half the size of the actual subject.\nSo what accessories are there for macro photography?\n1. Extension tubes\nThe most effective and versatile alternative to a macro lens are manual extension tubes. These fit between the lens and the body of the camera, increasing the distance between the lens and the digital sensor. This results in an increase in magnification. This is a relatively low cost alternative. For a little more money you can buy extension tubes that have the electronic contacts for autofocus and exposure metering.\n2. Close-up filters\nThese little filters that screw on to the end of your lens increase the magnification of the lens. Not as good as extension tubes but still a lower cost alternative. These were the first macro accessories I ever purchased and they served me well. They come in threes, +1, +2 and +3 and can be used singly or altogether for maximum magnification.\nBellows offer really great magnification but they do have limited features due to the fact that they aren’t electronic. As a manual accessory they give a greater magnification than extension tubes. They aren’t so popular these days but are still a reasonably priced accessory that will give you great service and help produce outstanding images. They can be used with many of your lenses.\n4. Reversing rings\nA reversing ring is an adapter that allows you to connect the lens to the camera in reverse by screwing the attachment on the filter thread at the front of the lens. The lens is completely reversed. You can use this on any lens. It is a manual accessory as the camera can no longer communicate with the lens.\n5. Ring flash\nThe final accessory is a flash and doesn’t help with the magnification. With the close working distances involved in macro you can’t use a flash mounted on the camera. So what is necessary is a round flash mounted on the front of the actual lens. This gives great lighting from around the lens and not one big flash from above. They are quite expensive but are a great solution to lighting problems connected with close-up photography.\nAs you learn digital photography and get to grips with macro you will realise that each of these accessories has its limitations and never truly replaces a high quality dedicated macro lens. But, if you want to experience macro photography on a budget before spending a lot of money, then these tips are for you. Happy shooting!","domain":"optical_engineering"}
{"url":"http://www.peizijiaoyu.com/pzzx/7405.html","date":"2020-01-29T10:54:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251796127.92/warc/CC-MAIN-20200129102701-20200129132701-00360.warc.gz","language_score":0.9377783536911011,"token_count":1052,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__29269400","lang":"en","text":"Lens Physics Ideas\nIt is composed of glass or plastic etc.. From the front part of the camera, the little hole (the aperture), would be viewed. A large selection of optical glasses are at present readily available to lens designers. Corrective glasses for nearsightedness focus the light to make an image closer to the individual's eye so they can see it. www.domyhomeworkfor.me This lens has a far shorter focal length, therefore it shrinks the scene before you. Moreover, when used for these cutting applications, plano-convex lenses also have been demonstrated to present a larger depth of field that's required to keep up a taperless edge.\nWhen utilizing a microscope we don't observe the whole degree of the sample. The front element is vital to the functioning of the whole assembly. Hence most specimens should be illuminated, particularly at higher magnifications, when observing details which are so small they reflect only small quantities of light. In order to comprehend how a lens works, you will need to understand a bit about how light behaves in passing from 1 material to another.\nThe Fundamentals of Lens Physics Revealed\nIn the above mentioned examples, we show how to locate this info. This isn't an instance of the work generated by our Essay Writing Service. Within this lesson, we'll observe a similar system for constructing ray diagrams for double concave lenses.\nWhatever They Told You About Lens Physics Is Dead Wrong...And Here's Why\nAim To discover the focal length of a concave lens by means of a convex lens. Lenses can bend light as a result of a phenomenon called refraction.\nThis 1 path is going to be the exact same for each lens individually as well as for the combo of lenses. Professional cameras allow you to attach unique lenses so that you may observe the scene at various magnifications.\nWhere to Find Lens Physics\nActually, wide angle can be the only means to capture the whole setting without omitting any essential elements in the image. help me do my homework Thus the simple idea of any camera is to assemble light, and record it on some type of photosensitive objectfilm, in the instance of older cameras, and photo sensors, in the instance of digital ones. Like the term lens, the term focus first begun to appear in scientific writing in the 17th century. The HP-67 was an outstanding case of the issue. Should you need any assistance, don't hesitate to leave a comment below.\nThings You Won't Like About Lens Physics and Things You Will\nStart out with an image of nearby object which you're ready to focus. Mirrors reflect light and create images in a way like a lens, based on where an object can be found concerning a mirror. See this site to find out more on how the Hubble works.\nRay diagrams may be used to decide on the image place, size, orientation and kind of image formed of objects when placed at a specific location facing a lens. Since light does not really pass through this point, the image is called a digital image. You'll also realize that your image is upside down. The image is just a vertical line. The image of an object is discovered to be upright and reduced in proportion. The very first image formed by means of a telescope objective as seen in Figure 1b won't be large compared with what you might see by taking a look at the object directly.\nThis must be carried out very carefully. Field curvature is seldom totally eliminated, but it's often hard to detect edge curvature with the majority of plan-corrected objectives. Coma is often believed to be the most problematic aberration because of the asymmetry it produces in images. Refracting telescopes can be available in many unique configurations to correct for image orientation and varieties of aberration. And there are two major shapes we will need to look at. Locate the mean value of the focal length for all of the observations for various objects.\nThe image location is found by tracing all light rays backwards till they intersect. The electron microscope demands vacuum chambers so the electrons can proceed unheeded. As the rules are applied in the building of ray diagrams, remember the simple fact that Snells' Law of refraction of light holds for every one of these rays. A microscope arrangement is shown below, in addition to the ray diagram showing the way the very first lens produces a true image.\nSimply take a look at some photography basics, learn the way your camera works, and how that can enable you to take superior pictures. We are going to be promoting as well. This is called the Cartesian convention.\nThe level of convergence or divergence is dependent on the focal length of the lens. That depends upon your present position. It is one of the two foci of the lens.\nThe magnification made by the eyepiece is 5. This leads to a growth in the apparent angular dimensions and is accountable for the perceived magnification. It is to magnify small objects, and both lenses contribute to the final magnification. To determine the image distance, it will have to be used. To decide on the image height, the magnification equation is necessary.","domain":"optical_engineering"}
{"url":"https://iflscience.com/praying-mantises-wearing-3d-glasses-help-understand-insect-vision-33072","date":"2022-10-03T17:48:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337428.0/warc/CC-MAIN-20221003164901-20221003194901-00626.warc.gz","language_score":0.9641876816749573,"token_count":409,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__151631759","lang":"en","text":"Praying mantises are badass hunters. Although famed for their ability to catch prey many times heavier than themselves, there’s not much research on the efficiency of mantis vision, or indeed on insect sight in general.\nTo help see the world through the eyes of an insect, scientists have been giving praying mantises 3D glasses to see if they are capable of stereopsis – the ability to perceive depth and view the world in three dimensions – and if this is what makes mantises such effective predators. Along with this, the findings from these funky bugs hope to help develop depth-perception “sight” in robots.\nThe study conducted at Newcastle University had its findings published in Nature this week.\nUsing beeswax to attach the glasses, they fitted the praying mantises with two separate 7-milimeter blue and green lenses. They didn’t use the more iconic red and blue lenses we’re probably more used to, as red light is poorly visible to mantises.\nThe insects were then placed into their very own 3D insect cinema. Upon the screen they played swirling images designed to provoke them into thinking there was prey up for grabs.\nActing as if they were amid a real hunt, when wearing the 3D glasses the mantises believed the stimulus was prey and begun to strike at the LED screen. When they weren’t wearing the lenses and were confronted with the 2D stimulus, they didn’t bother to attack the screen. These findings neatly show that some insects can see in 3D and praying mantises heavily rely on three-dimensional vision to survive.\n\"Despite their minute brains, mantises are sophisticated visual hunters which can capture prey with terrifying efficiency,\" said study leader Jenny Read in a press release. \"We can learn a lot by studying how they perceive the world.\"\n\"Better understanding of their simpler processing systems helps us understand how 3D vision evolved, and could lead to possible new algorithms for 3D depth perception in computers\".","domain":"optical_engineering"}
{"url":"https://marketingreport.eu/sony-launches-fx3-full-frame-camera-with-an-eye-on-content-creators.html","date":"2022-08-08T20:25:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570871.10/warc/CC-MAIN-20220808183040-20220808213040-00636.warc.gz","language_score":0.9149149656295776,"token_count":1127,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__176168178","lang":"en","text":"Sony launches FX3 Full-Frame Camera with an eye on content creators\nSony has officially announced the FX3 (model ILME-FX3) camera that combines the best of Sony’s industry-leading digital cinema technology with advanced imaging features from Alpha™ mirrorless cameras to create the ultimate cinematic look.\nAs the latest addition to Sony’s Cinema Line, the FX3 delivers a cinematic look and professional operability and reliability all in one device that answers the needs of young creators who are looking for new ways to express their creative vision.\nThe new model provides outstanding image quality and usability for small scale and one-person shooting.\nThe FX3 boasts first-class focus performance, optical image stabilisation, handheld shooting design and advanced heat dissipation for extended recording times.\nAll this in a compact, lightweight body that provides the performance and mobility to meet the growing demands of today’s content creators.\nYann Salmon Legagneur, Director of Product Marketing, Digital Imaging, Sony Europe: “The FX3 was designed to turn creative vision into reality. It allows creators to bring their visual expression into the world of cinema through immersive content. We will continue to support the world’s creators through Sony’s Cinema Line Series.”\nThe FX3 flaunts Sony’s industry-leading image sensor technology to achieve high processing speeds and outstanding image quality. The full-frame, back-illuminated Exmor R CMOS sensor full-frame 10.2 megapixel(approx. effective) count for movie recording (and 12.1 effective megapixels for stills) and the BIONZ XR image processing engine team up to ensure high sensitivity with low noise.\nThe standard ISO range is 80 to 102,400 (expandable to 409,600 when shooting a movie), and dynamic range is an impressively wide 15+ stops.\nIn response to a growing need for more expressive depth, the FX3, along with FX9 and FX6 Cinema Line cameras, allows users to create a cinematic look without post-production using S-Cinetone. Based on the colour science inspired by Sony’s flagship VENICE camera, S-Cinetone delivers natural mid-tones, plus soft colours and smooth highlights that are essential to cinematic look.\nCreate movies with in-camera 4K recording at up to 120 frames per second.\nExtraordinarily smooth slow-motion imagery (up to 5x) at QFHD (3840 x 2160) resolution with autofocus provides new expressive capability.\nDesigned for Comfortable Solo-Shooting\nThe most compact and lightweight Cinema Line camera is ideal for handheld shooting, gimbal and drone-mounted work. It weighs just 715 grams, including the battery and memory cards, and the body is 77.8 mm high, 129.7 mm wide and 84.5 mm deep – without protrusions. The camera grip has been carefully designed to provide optimum flexibility, stability and comfort for long shoots.\nDesigned for mobility and efficiency, the FX3’s body features five thread holes (1/4-20 UNC) to easily attach compatible accessories while remaining light enough for handheld shooting and making it easy to carry and set up.\nThe supplied XLR handle unit securely attaches to the body via the Multi Interface Shoe without any special tools and provides three additional thread holes for accessories: two on the top and one on the end. External monitors, recorders, wireless microphone receivers, the accessory shoe kit (cold shoe plate), or other add-ons can be securely attached.\nTo enable high quality audio, the XLR handle unit includes two XLR/TRS audio inputs to the FX3. With an optional XLR microphone, digital audio data can be directly transferred to the camera for outstanding audio quality.\nCamera settings provide audio recording formats, including 4-channel 24-bit recording. Because the XLR adaptor is integrated into the handle and does not require any additional cables or batteries, it offers stress-free set up.\nThe FX3 offers Fast Hybrid autofocus (AF) by using the 627 points focal plane phase-detection system during movie recording.\nThe camera is further enhanced with Touch Tracking (Real-time Tracking) where simply touching the desired subject on the monitor screen initiates auto focus and tracking on that subject.\nPrecise and smooth focus is maintained with Real-time Eye AF – technology that pinpoints eye even when subjects are looking down or up at steep angles. Additionally, other AF features have been included and refined in response to feedback from professional users, including AF Transition Speed, AF Subject Shift Sensitivity, intuitive control and AF support when focusing manually. These AF features have been implemented in the FX3 to ensure stable, flexible and precise focusing in any situation and are easy to operate for solo shoots.\nThe FX3 features 5-axis optical in-body image stabilisation - highly effective for handheld shooting. A high precision stabilisation unit and gyro sensors have made it possible to provide an Active Mode that is dedicated to movie shooting in each format, including 4K.\nIn-body image stabilisation means that effective stabilisation can be achieved with a wide range of lenses, including E-mount lenses that do not include stabilisation of their own. In addition, the FX3 records image stabilisation metadata that can be done more practical adjustment during post-production using Catalyst Browse/Prepare.","domain":"optical_engineering"}
{"url":"https://www.secabo.com/en/secabo-modular-single-cross-laser-table-version-with-500mm-rod-b641032d-e33f-4c11-988d-29c92a90c555/","date":"2023-01-29T19:05:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499758.83/warc/CC-MAIN-20230129180008-20230129210008-00735.warc.gz","language_score":0.8943389654159546,"token_count":527,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__7169026","lang":"en","text":"This modular product has the following content:1 × Secabo Crosslaser Basic Unit1 × Secabo Stand Basic Unit1 × Secabo 500mm Rod1 × Secabo Screws Bag for Transfer Extension Modules Do you actually know how easy it is to use the new Secabo Crosslaser? For example, the single cross laser table version.Connect the base piece to the desired rod, available in 500mm or 300mm, of course you can vary the height that is comfortable for you. Then clip on the laser diode and tighten it. To make sure nothing bothers you, you can secure everything with the included cable ties and you're ready to go!The nice thing about the Secabo cross laser system is that you can now reorder more rods if you need more height, or even an intermediate rod for a second laser. All products from the Secabo cross laser system can be expanded if desired and as needed. Secabo cross laser modular accessory system for transfer pressesFor even more flexibility and precision in hot transfer: a cross laser suitable for all Secabo transfer presses! The new modular cross lasers from Secabo offer you unprecedented convenience in textile finishing. The Secabo cross laser system can help you, for example, to optimally position the desired transfer objects and to achieve consistent results with higher print runs. With Secabo's flexible cross lasers, textiles and other objects as well as transfer elements such as flex foils, sublimation papers and the like can be positioned easily and reproducibly. Secabo has developed a modular system here that is suitable for almost all Secabo transfer presses. Whether you want to use the table version, stand version or in combination with our Accessory Holder the laser directly at the transfer press.Here your possibilities are extremely variable, because by the different bar lengths and cross bars you can adapt everything to your workplace accordingly. The new laser can be focused even more precisely, which is particularly interesting for hot transfers in series production, as it makes it much easier to position the transfer objects exactly in almost all transfer press types. Like all Secabo products, these new products have been tested in accordance with current safety standards and come with a 24-month warranty. Features all transfer presses can be retrofitted with the cross laser systemmodular design for optimal workflowmore precise positioning due to exact laser focusdesk and floor standing version available Safety instructions!Do not look into the laser beamDo not look into the direct reflections of the laser beamDo not use at eye level.\n|dimensions||15cm x 20cm x 50cm|","domain":"optical_engineering"}
{"url":"https://www.cito.de/en/GB/news/cito-laserinspektor-rotary-dies/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+cito%2Fen%2Fnews+%28CITO+News%29","date":"2019-04-20T18:10:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578529962.12/warc/CC-MAIN-20190420180854-20190420202854-00356.warc.gz","language_score":0.9038222432136536,"token_count":246,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__164668324","lang":"en","text":"NEW Now also for rotary dies\nThe CITO LaserInspektor is a unique measuring instrument with specially developed software for measuring and optimizing laser cuts in stamping/cutting tools.\nIn close cooperation with Koskisen (a manufacturer of high-quality cutting die wood) and Polytronic (the largest and most important die manufacturer in Finland), CITO has now succeeded in further developing the existing version of the CITO LaserInspector and making it available for other applications.\nFrom now on, it is possible to measure laser cuts not only in flatbed dies, but also in rotary half-shells. CITO now offers a special adapter for rotary half shelves for this purpose.\nUse of the CITO LaserInspector during the production process enables optimized production parameters and thus contributes significantly to ensuring a consistently high stamping/cutting tool quality!\nThanks to their defined specifications, cuts are always uniform, irrespective of the user, which leads to a significant improvement in quality. The CITO LaserInspektor guarantees a consistent production flow and effective use of materials and labour resources.\nFor more information see CITO LaserInspektor.","domain":"optical_engineering"}
{"url":"http://objectiveimaging.com/products/OASIS-SmartMove-Interface.php","date":"2018-04-23T23:01:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946256.50/warc/CC-MAIN-20180423223408-20180424003408-00175.warc.gz","language_score":0.8229734897613525,"token_count":352,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__32642578","lang":"en","text":"OASIS Interface for Leica Microsystems SmartMove Controller\nOI-SNP SmartMove Interface Card for OASIS-4i\nThe Leica Microsystems SmartMove device provides an ergonomic manual input controller for automated XY stage and Z focus movement, used with the Leica Microsystems range of automated microscope stands.\nObjective Imaging's OI-SNP interface card allows the SmartMove to be used with standard 3rd party stages and focus adaptors that are controlled via the OASIS-4i controller.\nThe OI-SNP allows each axis of the SmartMove to be independently configured for use with either built-in microscope control or OASIS-4i control.\nExamples of configurations possible with the OI-SNP:\n- Leica DMIRE2 microscope fitted with a Prior motorized stage. By using the OI-SNP, the Prior XY stage is controlled using the XY hand controls on the SmartMove, while the Z control of the SmartMove controls the built-in DM focus motor\n- A manual microscope with retrofitted Ludl XY stage and Ludl focus motorization and OASIS-4i controller card. The OI-SNP permits full XY stage and Z focus control via the SmartMove controller.\n- Independent configuration of each axis to allow pass-through operation of any axis to Leica microscope or OASIS-4i controller\n- Fully compatible with Leica Microsystems CTRMIC microscope interface\n- Allows SmartMove controller to be used with 3rd party stages and focus drives such as Ludl, Marzhauser, Prior, and Semprex\n- Allows standard Objective Imaging joystick unit to be used in conjunction with SmartMove","domain":"optical_engineering"}
{"url":"https://twobrostactical.com/mro-patrol-2-0-moa-adjustable-red-dot-choose-mount/","date":"2019-04-19T20:42:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578528058.3/warc/CC-MAIN-20190419201105-20190419223105-00339.warc.gz","language_score":0.8396546840667725,"token_count":728,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__106711539","lang":"en","text":"This item ships directly from our warehouse in Texas. Item ships 2-5 days after ordering. Please select free shipping option during checkout.\nWhat it does:\nThe Trijicon Miniature Rifle Optic (MRO®) is a reflex-style, sealed sight intended for use on rifles, carbines, and shotguns to provide fast target acquisition. It is designed to be used with both eyes open, providing the operator with maximum situational awareness.\nThe large aperture and tapered light path maximizes the viewing area in such a small optic, allowing for fast target engagement – especially from non-standard shooting positions. Advanced lens coatings and electronics produce a crisp red dot.\nThe brightness control dial on the MRO is specifically designed for ambidextrous usage. With a mid-adjustment “off” position and eight discernible brightness settings, this brightness dial allows for quick and ergonomic adjustments.\nThe MRO features fully protected adjusters that maintain zero even during rough handling, and can be adjusted without the need for special tools.\nHard-anodized, forged 7075-T6 housing is fully sealed and waterproof, providing durability in demanding conditions.\nThe MRO Patrol includes an Ocular Lens Cover to protect glass from damage and to reduce glare and reflections as well as an Objective cover and ARD.\n- Trijicon MRO 2.0 MOA Red Dot\n- Trijicon Ocular Cap\n- Trijicon Objective Cap\n- Trijicon ARD\n- Trijicon Hard Case\n- Trijicon Lens Cloth\n- Trijicon Warranty Registration Card\n- Trijicon Decal\n- Owners Manual\n- CR2032 Battery\n- Mount based on selection\n- Faster target acquisition\n- Faster follow up shots\n- Increased situational awareness\n- Magnification - 1x\n- Objective Size - 25mm\n- Bullet Drop Compensator - No\n- Length - 4.1 in\n- Weight (oz) w/o mount - 5.1 oz (116g) to 5.9oz (166g) with battery installed\n- Weight (oz) w/ cowintess mount - 5.9oz (166g) with battery installed\n- Illumination Source - Battery\n- Reticle Pattern - 2.0 MOA Dot\n- Reticle Color - Red\n- Bindon Aiming Concept - No\n- Eye Relief - Infinite\n- Adjustment @ 100 yards (clicks/in) - 1.0 click = 1/2 MOA\n- Housing Material - 7075-T6 forged aluminum\n- Batteries - 1 CR2032 Lithium Battery\n- Battery Life - 5 years of continuous use at day setting “3” (setting 5 of 8) at 70°F (21°C)\n- Adjustment Range - 70 MOA total travel\n- Illumination settings - 8\n- Dimensions (LxWxH) w/o mount - 2.6 in. x 1.7 in. x 2.0 in. (66mm x 43mm x 51mm)\n- Dimensions (LxWxH) w/ cowitness mount - 2.6 in. x 1.7 in. x 2.86 in. (66mm x 43mm x 73mm)\n- Waterproof - 100 ft (30 m)\n- Distance From Top of Mounting Rail to Optical Axis (Low / Full / Lower 1/3) inches: 0.985 / 1.538 / 1.663","domain":"optical_engineering"}
{"url":"http://premiumnet.info/recent/eye-tracking-improves-ar.html","date":"2019-07-24T00:15:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195530246.91/warc/CC-MAIN-20190723235815-20190724021815-00406.warc.gz","language_score":0.9283157587051392,"token_count":153,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__136047903","lang":"en","text":"Eye tracking is the process of measuring either the point of gaze (where one is looking) or the motion of an eye relative to the head. An eye tracker is a device for measuring eye positions and eye movement. Eye trackers are used in research on the visual system, in psychology, in psycholinguistics, marketing, as an input device for human-computer interaction, and in product design. Eye trackers are also being increasingly used for rehabilitative and assistive applications (related for instance to control of wheel chairs, robotic arms and prostheses). There are a number of methods for measuring eye movement. The most popular variant uses video images from which the eye position is extracted. Other methods use search coils or are based on the electrooculogram.","domain":"optical_engineering"}
{"url":"http://www.scotteye.com/blog/tag/keratoconus/","date":"2019-03-24T19:56:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912203491.1/warc/CC-MAIN-20190324190033-20190324212033-00195.warc.gz","language_score":0.9735440015792847,"token_count":116,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__42179833","lang":"en","text":"Scleral contact lenses are special, very precisely made contact lenses that may help people with corneal problems such as keratoconus, corneal transplants, and more. Dr. Cazares is certified in fitting ZenLens, a scleral lens that has helped many of his patients see better than they ever have before. Do you or someone you know have a corneal disease or dysfunction? Call us to see if scleral contact lenses are right for you! ..\nMonday, December 17, 2018 Ryan Cazares Comments (0)","domain":"optical_engineering"}
{"url":"http://www.belvoires.com/products/electrical/led-lighting.php","date":"2019-08-18T04:43:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313617.6/warc/CC-MAIN-20190818042813-20190818064813-00015.warc.gz","language_score":0.8833297491073608,"token_count":472,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__120037989","lang":"en","text":"Belvoir Engineering Services are able to offer a wide range of LED Lighting products direct to you.\nThe Callisto is a stylish recessed down lighter offering a lighting solution for a multitude of applications. The Callisto utilises the latest in Power LEDs in\na compact housing giving a super bright light source without compromising on safety.\nThe Microlux has been designed with both affordability and application in mind without having to compromise on the quality of LEDs used – the Microlux also utilises the latest in LED technology.\nThe Powerlux range has been designed to be unrivalled when it comes to performance, design and affordability. The performance comes from 5 x 1.25 watt Power\nLEDs that draw very little power, and with the addition of an advanced crater reflector, the Powerlux range is up to 3 times brighter than other LED products on the market\nA safer clearer working environment for users - the light utilises 6 x 2.5W Power LED’s to create a powerful arc of light around the vehicle and has an IP68\nrating offering maximum protection.\nLED TrueWhiteTM creates a clear safe working environment. Possibly the only LED worklite to provide 20 Lux of pure white light - resulting in less fatigue and\nThe Nebula incorporates the Orizon LED strip light in a tough aluminium housing to provide a bright, low profile, surface mounted LED lighting solution.\nThe Orizon LED strip lights are the ultimate in versatility at a cost that won’t break the bank. The 522mm length consists of 24 high intensity LEDs doubleing\nto 48 LEDs for the 1022mm length strip, that are encapsulated in a weatherproof casing.\nThe Superlux has been designed using a new power driver which substantially increases light output to give an extra bright lighting solution\nThe Hyperlux has been designed using a new power driver which substantially increases light output to give an extra bright lighting solution\nThe Apollo LED light is one of the most versatile LED light units on the market. Available in a variety of lengths and concentration of LEDs, the Apollo is an\nideal lighting solution for commercial vehicle lighting, van lighting and leisure applications.\nBased on the success of the original Orizon, the new Power Orizon hsa been designed to give you optimum performance and extended life; both at an affordable","domain":"optical_engineering"}
{"url":"http://rokkorlab.net/cgi-bin/csvsearch.pl?&search=photo0042","date":"2018-12-10T10:53:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00178.warc.gz","language_score":0.9330441355705261,"token_count":231,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__48637492","lang":"en","text":"Best from previous seasons (summer 2016)\n18 mm Pentax-110 lens on Lumix GF1.\nNot many digital photos were taken during summer season 2016. Here is one taken with 18 mm adapted Pentax-110 wide angle and Lumix GF1 digital crop format body.\nWhen testing the tiny Pentax lenses it was quickly noted that sharp images could be taken. The problem was that the adapter did not position the lens accurately, thus sharpness was not consistent across the frame. If you looked at the image closely, the left lower corner isn't sharp while the right corner is - this is caused by inaccurate lens adapter. Another problem is that Pentax-110 lenses do not contain iris so they always remain wide open at f2.8 limiting depth of field and image quality in many cases.\nRokkorlab will design and fabricate new PTX-110 lens adapter with fixed iris f4.5 for digital cameras. When completed flawless digital photos can be taken with superb Pentax-110 manual focus lenses.\n4k large image\ninfo (št) rokkorlab.net","domain":"optical_engineering"}
{"url":"https://www.ifsh.iit.edu/iir-inspection-method/infrared-imaging-method","date":"2021-11-28T21:21:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358591.95/warc/CC-MAIN-20211128194436-20211128224436-00426.warc.gz","language_score":0.8396090269088745,"token_count":856,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__10258175","lang":"en","text":"Non-destructiveTo detect defects in hermetic packages by computer evaluation of infrared (IR) ages with previously defined patterns of acceptance.> 50 μm channel, > 100 μm pinholesOn-line, > 5 s> $50,000\nInfrared light may be absorbed, transmitted, and emitted by a package or a seal. Differences between these parameters provide a means for visual interpretation when sensed automatically and enhanced for visibility.\nInfrared imaging (IRI) thermography is an inspection technology that can be implemented on-line in industrial quality control systems to enhance efficiency in removing defective packages. According to the industry, the IRI technique makes a merit of non-destructively scanning and thermally imaging surfaces of various materials.\n- Sample packages\n- Infrared camera\n- Seal packages by using heat sealers.\n- Take thermal images after heat sealing by using an IR camera at heat-sealing temperatures in the range of 60 to 140oC. Thermal information in the 3 to 5 μm infrared band will be measured and recorded.\n- Analyze images at IR Iron, Midgreen, or Midgrey image palette modes.\n- Infrared images of packages with different standard defects are shown in Figures 1 and 2. Each image was taken at an interval of 1/30s and a shutter speed of 2 μs. In general, all defects were easily identified and further characterized by the infrared imaging (IRI) technique. Limit of detections (LODs) of the IRI technique for microchannels in foil-laminate packages and plastic packages were 180 μm and 40 μm, respectively. The LODs for pinholes in in foil-laminate packages and plastic packages were 100 μm and 160 μm, respectively.\n- Linear regression analysis of seal quality data in Figure 3 indicated that average initial surface temperatures of heat-sealed area obtained from infrared images were significantly correlated with seal strength.\nPACKAGE TYPES AND DEFECTS\n|DEFECTS||Flexible Pouch||Semi-rigid and Rigid plastic container||Plastic Can (Double-seam Metal End)||Paperboard|\n|Double Seam Defects*|\n|Foreign Matter Inclusion|\n|Loose Flap or Ear|\n|Seal Defects (Blister)|\n|Seal Defects (Blocked)|\n|Seal Defects (Burnt)|\n|Seal Defects (Compressed)|\n|Seal Defects (Contaminated)|\n|Seal Defects (Convolution/Embossing)|\n|Seal Defects (Creep)|\n|Seal Defects (Crooked)|\n|Seal Defects (Incomplete)|\n|Seal Defects (Misaligned/Deformed)|\n|Seal Defects (Nonbonding/Weak)|\n|Seal Defects (Plastic Lumps)|\n|Seal Defects (Seal-width Variation)|\n|Seal Defects (Stringy)|\n|Seal Defects (Uneven Impression)|\n|Seal Defects (Uneven Juncture)|\n|Seal Defects (Wrinkle)|\n|Swell (Swollen Package)|\nThe application is limited by the need for statistical chracterization of all defects and subsequent computerizations.","domain":"optical_engineering"}
{"url":"http://bolils.com/learn-about-various-kinds-of-bar-code-checking-technologies/","date":"2019-04-22T22:15:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578582736.31/warc/CC-MAIN-20190422215211-20190423001211-00373.warc.gz","language_score":0.9236592650413513,"token_count":529,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__64026431","lang":"en","text":"Learn About Various kinds of Bar code Checking Technologies\nUsing bar code technology in companies is advantageous in lots of ways. It improves operational efficiency, reduces errors, time saving, and enhances information access. Various firms, regardless of their size, use barcodes for his or her business purposes.\nBar code scanners are essential tools which ease business processes in manufacturing, education, healthcare, warehousing and lots of other fields. This is a description of bar code scanners which use different technologies.\nExactly what is a bar code?\nA bar code is definitely an optical machine-readable data that contains a number of black bars and white-colored spaces of assorted widths. The primary purpose of utilizing a bar code would be to rapidly and precisely access information with the code by an automatic system. The devices that read data present on barcodes are known as bar code scanners.\nSo how exactly does a bar code scanner work?\nA bar code scanner includes an illumination source, sensor, and decoder. An illumination source can be used to light up the bars and spaces around the bar code. The black bars absorb light in the source and white-colored spaces reflect it. The sensor detects the reflected light in the bar code and generates an indication of assorted current that is representative of the concentration of reflection. A decoder with specific software decodes the signal right into a readable text that’s shown on the computer monitor. Data collected in this manner is stored and managed by specific databases. Let’s explore bar code scanners as well as their different checking technologies.\nVarious kinds of checking technologies\nBar code scanners use different checking technologies for example laser and imaging technologies. Listed here are various bar code scanners.\nThey’re also known as as wand scanners and therefore are appropriate for low-volume and desktop applications. They have a photodiode that’s placed alongside a source of light. Once the scanner is swiped over the bar code inside a steady motion, the photodiode measures the concentration of the reflected light. Because they are by hand swiped, wand scanners aren’t restricted to the width from the bar code. One should ensure that they’re swiped at constant rate of speed in a particular position. Pen-type scanners are affordable, small, and highly durable.\nDigital Marketing Methods For Any Modern Business\nAdopting newer techniques for digital marketing is much like being a measure in front ofRead More\nHow you can Help Students Obtain the best From Classroom Technology?\nClassroom technology also comes with its evils however the good factor is they may beRead More","domain":"optical_engineering"}
{"url":"http://championsleagueclips.blogspot.com/2012/05/dxo-optics-pro-723-mac-os-x.html","date":"2017-04-25T02:40:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120092.26/warc/CC-MAIN-20170423031200-00582-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.901860237121582,"token_count":192,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__311560307","lang":"en","text":"DxO Optics Pro 7.2.3 | Mac Os X | 164.5 MB\nDxO Optics Pro software automatically improves figurative expression quality by taking into account the strict characteristics of your photographic equipment (camera carcass and lenses). Designed for serious amateurs for example well as for professional photographers who are looking in favor of the best image quality possible, DxO Optics Pro processes one as well as the other JPEG and RAW image files. Recognized on every side the world for its award-delightful automatic optical corrections, DxO Optics Pro handles each kind of problem that can affect image quality. Whether you want to employment its image processing capabilities to automatically improve hundreds of images end batch processing, or if you choose to manually define the processing settings beneficial to each photo, DxO Optics Pro exquisitely adapts to your needs to bestow you unsurpassed image quality and matchless productivity.","domain":"optical_engineering"}
{"url":"https://radel.gr/cooperations/led-lights-cooperations/","date":"2021-05-09T22:49:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989018.90/warc/CC-MAIN-20210509213453-20210510003453-00606.warc.gz","language_score":0.9291015863418579,"token_count":386,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__100055432","lang":"en","text":"LED / COB / MODULE / LENS / LED POWER / LED STRIPES /LED HEATSINKS / RETROFIT\nOur patented light source technology produces clean, white LEDs used as the core of commercial and industrial lighting. It’s a rapidly growing market, and everything we do is focused on understanding light’s impact on human behavior, and delivering products that create better environments and experiences.\nLedil is a Finnish manufacturer and supplier of LED optics . Ledil is committed to developing top quality optical solutions which add real value to the end products. Our standard product range is wide and we have strong know-how in custom projects from design to delivery.\nNichia has grown in the field of development, manufacturing and sales of fine chemicals, particularly inorganic luminescent materials (phosphors). In the process of the challenging pursuit of brighter luminescent and light-emitting materials, we succeeded in developing and commercializing the super high brightness Blue LED in 1993, which greatly impressed the world.\nOSRAM, based in Munich, is a leading global high-tech company with a history dating back more than 110 years. Primarily focused on semiconductor-based technologies, our products are used in highly diverse applications ranging from virtual reality to autonomous driving and from smartphones to networked, intelligent lighting solutions in buildings and cities. In automotive lighting, the company is the global market and technology leader.\nERP designs and manufactures small, smart and connected LED drivers. Established in 2004, and headquartered in Moorpark, CA, ERP owns and operates its own ISO 9001 certified manufacturing facility to ensure quality of design, sourcing, production and testing.\nSelf is a technology- and quality-oriented specialist in the design and production of innovative commercial LED lighting for the global retail market. With our experienced engineering team, we always focus on the latest developments in technology and materials.","domain":"optical_engineering"}
{"url":"https://www.codingmarkingdigest.org/solutions/fiber-laser-vs-co2-laser-what-is-the-difference/","date":"2023-09-23T00:45:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506429.78/warc/CC-MAIN-20230922234442-20230923024442-00060.warc.gz","language_score":0.9090163111686707,"token_count":1017,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__251863652","lang":"en","text":"Laser marking systems have steadily gained popularity in industrial packaging and manufacturing over the last 30 years. Offering quick speeds, high accuracy, and quality coding results, laser marking systems are used to complete some of today’s most demanding marking tasks, including:\nIn these environments and others, laser marking systems enable operators to create permanent, high-contrast markings at industrial speeds.\nTo accommodate the unique needs of different operations, laser marking systems come in a variety of forms. However, in terms of popularity, two laser marking technologies stand above the rest:\nBoth of these systems create markings using a highly-concentrated beam of light, rapidly heating material surfaces with pinpoint precision. As the laser heats a substrate’s surface, the affected portions are permanently altered, leaving behind a highly legible marking.\nHowever, fiber and CO2 laser systems differ in several other ways, many of which affect whether or not one system is well-suited for a specific operation.\nBelow, we present a fiber laser vs. CO2 laser comparison to help potential users determine which option is right for them.\nAs mentioned above, both fiber laser systems and CO2 laser systems mark materials using highly-concentrated beams of light; however, they differ in how they produce and direct their beams.\nLet’s begin our fiber laser vs. CO2 laser comparison by correctly classifying these systems and reviewing some basic mechanical properties.\nFiber laser systems are a solid-state laser technology, meaning they use solid materials as a laser source. Within each fiber laser system is a component called a diode, which converts electricity into light. This light is pumped into a fiber-optic cable, where it travels through the system until it enters the optical cavity.\nThe optical cavity is a section of the fiber-optic cable that contains a rare-earth “dopant” (i.e. a material that can alter the light’s electrical properties). As the light beam interacts with the dopant, the light exposure stimulates the electrons present in the rare-earth material. This stimulation causes a release of photons (i.e. light particles) of a specific wavelength.\nSimultaneously, the optical cavity reflects the light back and forth, focusing it into a concentrated laser beam. The beam is given a desired shape using components such as beam expanders and lenses. The system then releases the laser beam to the substrate to create the desired marking.\nIn contrast with fiber laser systems, CO2 laser systems are a type of gas-state laser technology, meaning they use gaseous materials as a laser source.\nEach CO2 laser system is built with a CO2 laser tube, which is a glass tube containing a mix of carbon dioxide, nitrogen, helium, and hydrogen. The system creates light by exposing the tube’s gaseous mix to high-voltage electricity. The electricity excites the gas particles and causes them to release light.\nThe CO2 laser tube is bookended by two mirrors: a fully reflective mirror and a partially reflective mirror. The released light particles bounce between the mirrors, building in intensity and forming a beam. Once the light reaches sufficient brightness, the beam can pass by the partially reflective mirror and be discharged toward the substrate.\nAs a result of their different light sources, operating mechanics, and wavelengths, fiber and CO2 laser systems differ in several ways, including in:\nThese differences will have a significant influence on whether a fiber or CO2 system will work efficiently in specific situations.\nFor example, fiber lasers excel at metal marking and engraving due to their concentrated beam wavelength (1,064nm). This aptitude makes fiber laser systems a valuable addition to production lines that use metal cans. Conversely, CO2 laser beams have longer wavelengths, which makes them worse at marking most metal materials; however, they are well-suited for marking many organic materials, such as wood and rubber, that fiber lasers are incompatible with.\nFor a breakdown of fiber laser vs. CO2 laser material compatibility, see the table below:\n|Fiber Laser-Only Materials||Fiber and CO2 Materials||CO2 Laser-Only Materials|\n|- Aluminum |\n|- Circuit boards|\n- Electrical components\n- Aseptic packaging\n- Flexible material\n- Rigid plastics\n- Paperboard cartons\nBeyond substrate compatibility, other important specification differences between these two systems include:\nWant to learn more about fiber and CO2 laser systems? Stay connected to C&M Digest by subscribing to our newsletter. With information on hardware, formulas, and other important marking topics, our newsletter will keep you updated on the latest industry developments. To get in touch with us about possible collaborations or ideas for coverage, contact us today.","domain":"optical_engineering"}
{"url":"https://mastan.ru/thesis-paper-on-optical-fiber-3726.html","date":"2021-09-20T05:08:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057018.8/warc/CC-MAIN-20210920040604-20210920070604-00287.warc.gz","language_score":0.9306772351264954,"token_count":613,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__238186263","lang":"en","text":"Tags: Short Term Investments Commercial PaperA Small Place By Jamaica Kincaid EssayEssay.Ph General ManagerMla Essay SampleGeorgetown Essays Double SpacedEssay Visit Pulau Tioman\nThen an AR image of the terminal matrix is drawn on the monitor based on a unique ID, and this can be used to direct the work.Also, because the state of the work is being monitored, the database can be built and updated autonomously.Optical access equipment extending outward from communications buildings is designed to be highly reliable and to withstand harsh environments.\nBy establishing this technology, we will be able to use it both to locate faults and to detect potential faults, thus providing preventative maintenance.\nCommunication services are provided through various types of equipment.\nWe have focused on measuring the round-trip times between an optical line terminal (OLT) and each optical network unit (ONU).\nThis approach is often employed with PON systems, and we have shown that we can convert the measurement data to an optical fiber length and map ONU MAC (media access control) addresses to the location of reflections at the end of an optical fiber.\nHowever, this line illumination work would change significantly if such test signals could be injected at arbitrary locations. Now, however, in the optical broadband era, information flows nonstop, 24 hours a day, 365 days a year, via Internet, cloud computing, video distribution, and other services.\nWe are also studying applications for tasks such as checking the link status of a line, and for short-interruption optical media switching, which is described below. Therefore, the old approach cannot be used without affecting customers.The mechanism must assign a unique ID to each element of the equipment.We are conducting applied research on an equipment management system using image processing and augmented reality (AR) technologies as an effective means of achieving this.An example of the use of AR technology on optical patch panels in a communications building is shown in Fig. The optical patch panel has connector terminals densely arranged with 4 × 7 mm spacing.The positions of markers attached to the patch panel beforehand are captured with a camera.If this approach can be implemented practically, it will overcome one of the major difficulties with PONs.When a fault occurs, we use different instruments and systems to diagnose the fault in each transmission path (optical fiber) and transmission system.The research and development of optical fiber technology also has a history of roughly 40 years.The current optical broadband service infrastructure, which connects 17 million customers, is the result of developing technologies such as single-mode fiber, optical cables, optical interconnects, and operation and maintenance systems.Initially, optical fiber equipment was intended to create an optical fiber network that was as easy to handle as wired networks.However, to obtain high speed and a wide bandwidth, sophisticated skill or knowledge was often needed to build, maintain, and operate the equipment, and, depending on the amount of information being transmitted, the additional care resulted in time-consuming work.","domain":"optical_engineering"}
{"url":"https://dronescotland.com/mavic-3-rtk-multispectral/","date":"2024-02-21T05:07:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473370.18/warc/CC-MAIN-20240221034447-20240221064447-00541.warc.gz","language_score":0.9111867547035217,"token_count":206,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__174214264","lang":"en","text":"Multispectral sensors capture the invisible. Our Mavic 3 Multispectral captures both standard RGB colour and colours that are invisible to the naked eye. In addition to it’s impressive 20MP 4/3 CMOS mechanical shutter RGB sensor, it boasts 4x5MP sensors capturing green, red, red edge and near infrared. Accompanied with it’s RTK positioning system, the M3M is an accurate and efficient survey drone.\nWith around 45 minutes flight time and the ability to survey at 34mph, this drone is both versatile and precise. It can be used for both standard photogrammetry as well as used to detect crop health, disease in vegetation and to estimate timber volumes within forests. Different plants/trees reflect different ‘invisible’ light. The M3M can quickly document these colours for us to post process and provide colour coded maps. It can also be used to conduct water enrichment monitoring, forest distribution surveys and urban green area surveys.","domain":"optical_engineering"}
{"url":"https://www.excelnex.com/p_fiber.php","date":"2023-12-08T20:17:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100769.54/warc/CC-MAIN-20231208180539-20231208210539-00876.warc.gz","language_score":0.8321981430053711,"token_count":115,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__216223337","lang":"en","text":"Fiber Optics, Cable & Accessories\nThe combination of high bandwidth demand along with long haul cabling has resulted in the emergence of Fiber as the media of choice for traffic control, video surveillance and outdoor monitoring systems.\nFiber’s virtually unlimited bandwidth, ruggedness, high immunity and scaleable system components make it a natural for the preferred backbone of communication & networking systems.\n- Backplane Interconnects\n- Fiber Optic Cable Assemblies\n- Fiber Distribution Panels\n- Fiber Optic Patch Panels\n- Splice Enclosures","domain":"optical_engineering"}
{"url":"https://www.lensclof.com/post/photography-tip-of-the-week-9","date":"2024-03-02T20:11:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475897.53/warc/CC-MAIN-20240302184020-20240302214020-00164.warc.gz","language_score":0.9464961886405945,"token_count":370,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__183299659","lang":"en","text":"Whats the point of a Lens Hood?\nAll lenses come with one of these but whats the point? When should you use it?\nWhen should you not use it?\nIt just gets in the way!\nWhat does a lens hood do? The lens hood is designed to stop stray light getting on to the front of the lens and causing lens flare.\nWhy do they look different? Generally speaking a wide angle lens will have a hood with a wavy edge and a telephoto lens will have one like a tube. The key thing to understand is that the lens hood is designed for and is right for that lens and if you ever need to replace it then you need to get the correct one.\nWhen should I use the Lens Hood Almost all the time as it has a number of advantages and roles a.- It will stop lens flare b - It will protect the glass at the front of your lens - big positive c - If you are working fast and changing lenses and you bag can manage it then you don't need to refit the lens cap when you put the lens with the hood fitted in the bag (does depend on how well organised your bag is and what you are doing) d - To get it out of the way! Typically the lens hood will come fitted to the lens but the wrong way round which is to aid storage. If you leave it like this it hinders how you hold and interact with the lens, so by not fitting it it becomes a problem.\nWhen should I NOT use the Lens Hood a - When using a built in flash on a DSLR style camera as the lens hood will cast a shadow b - On a studio or portrait shoot as it can make a lens intimidating c - When you need to be unobtrusive as removal of the lens hood will make the lens less visible","domain":"optical_engineering"}
{"url":"http://savannahowenstravel.adafire.org/2016/11/01/professional-ideas-on-deciding-upon-essential-factors-of-keratoconus/","date":"2019-07-15T23:53:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195524290.60/warc/CC-MAIN-20190715235156-20190716021156-00396.warc.gz","language_score":0.9366035461425781,"token_count":808,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__155518009","lang":"en","text":"Specially designed lenses are another option. Others will not be able to see them unless they look closely into a patient’s eyes. near-sighted people can see close-up, but their vision is blurry on objects in the distance. After the surgery, these jobs may become available to you. People who wear contact lenses can participate in sports without the worry of having glasses getting in the way or breaking. Your vision may not be perfect immediately following surgery, but you can expect it to gradually improve as your eye becomes accustomed to the new cornea. Being sturdier than soft lenses, GP contact lenses are easier to clean and last longer. For a few people, common side effects of LASIK eye surgery are permanent, but for many people these problems diminish over time. Cataracts worsen over time and will need to be removed eventually. Petrol permeable lenses are used now by practitioners because the comfort is not immediate like it is for the soft lens.\nPractical Guidance On Core Factors In Keratoconus\nThe UltraHealth and ClearKone hybrid contact lenses manufactured by SynergEyes combine a highly oxygen-permeable rigid center with a soft peripheral “skirt.” These lenses were designed specifically for keratoconus, and the central GP zone of the lens vaults over the cone-shaped cornea for increased comfort. Hybrid contact lenses provide the crisp optics of a gas permeable contact lens and wearing comfort that rivals that of soft lenses, according to SynergEyes. UltraHealth uses silicone hydrogel material for the soft lens skirt, providing greater oxygen transmissibility than ClearKone’s hydrogel skirt. UltraHealth and ClearKone are available in a wide variety of parameters to provide a fit that conforms well to the irregular shape of a keratoconic eye. Keratoconus News Corneal Collagen Crosslinking Stabilizes Eyes of Children With Keratoconus August 2015 Corneal collagen crosslinking (CXL), a relatively non-invasive procedure that uses topical application of riboflavin (vitamin B2) and UV light to strengthen chemical bonds in the cornea , effectively stabilized the eyes of children with keratoconus, according to a recent study. no dataCorneal crosslinking may help kids with keratoconus. Sidebar continued >> Researchers at Temple Street Children’s University Hospital in Dublin, Ireland, evaluated the medical records of children (ages 13 to 18 years) with keratoconus who had undergone CXL. A total of 25 eyes of 14 patients were treated and evaluated. Measurements of visual acuity, mean refractive error, amount of astigmatism and corneal curvature were taken before treatment and three, six and 12 months afterward.\nFor the original version including any supplementary images or video, visit http://www.allaboutvision.com/conditions/keratoconus.htm\nCataracts worsen over time and will need to be removed eventually. Some medications create difficulties with healing or dry eyes, and being on one of these medications would prevent a patient from undergoing LASIK. Astigmatism frequently occurs with refractive errors such as hyperopic and myopia. Read through the following categories and see if any of them apply to you: you are over age 65 or under age 21, disabled, blind, pregnant or you are the current caregiver of a child whose parent is unable to support him as a result of being disabled, deceased, unemployed or not present for any other reason. Look at what activities the child was doing in the hours before the headache struck. no dataAstigmatism, in most occurrences, doesn’t require any kind of correction. As with any surgical procedure, Lasik is not without risks. Most important, follow general contact lens instructions for wear and care. Nowadays, Doric contact lenses is available which can effectively correct this condition.","domain":"optical_engineering"}
{"url":"https://scancodeautoid.com/xenon-1900.html","date":"2022-08-08T20:04:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570871.10/warc/CC-MAIN-20220808183040-20220808213040-00044.warc.gz","language_score":0.8035510778427124,"token_count":212,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__211088182","lang":"en","text":"USB, Keyboard Wedge,\nRS-232, IBM 46xx (RS485)\nDecode capabilities :\nReads standard 1D, PDF,\n2D, Postal and OCR symbologies\nFeaturing a custom sensor that is optimized for barcode\nscanning, the Xenon™ 1900g scanner offers industry-leading\nperformance and reliability for a wide variety of applications\nthat require the versatility of area-imaging technology.\nPowered by sixth-generation Adaptus™ imaging technology, the Xenon\n1900g scanner delivers superior barcode scanning and digital image\ncapture. The scanner incorporates a revolutionary decoding architecture\nand a custom sensor, enabling extended depth of field, faster reading and\nimproved scanning performance on poor-quality barcodes. From highdensity\nlinear to 2D barcodes found directly on the screen of a mobile\ndevice, the Xenon 1900g scanner decodes virtually all barcodes with ease.","domain":"optical_engineering"}
{"url":"https://www.drtavel.com/blog/three-reasons-anti-reflective-coating-is-a-good-idea/","date":"2020-09-30T04:46:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402118004.92/warc/CC-MAIN-20200930044533-20200930074533-00653.warc.gz","language_score":0.9443522095680237,"token_count":289,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__70232740","lang":"en","text":"Sometimes it is difficult to know what is worth splurging on when it comes to glasses. Which upgrades are worth the extra bucks? After getting my first pair of glasses from Dr. Tavel, I would say anti-reflective coating is a must.\nAccording to Allaboutvision.com, anti-reflective (AR) coating eliminates reflections of light from the front and back surface of eyeglass lenses. This allows for 99.5 percent of light to enter through the lens. So why do you need it? Here are three reasons AR is a great idea.\n1. Lenses look invisible. With AR, your eyes are much more visible to onlookers. Without it, light is reflected off the lens creating a glare over your eyes.\n2. Glare and reflections are eliminated. When looking through your lenses, AR helps eliminate the halos and glare from outside light. This is particularly helpful when driving at night. Glare from headlights can make it difficult to see without AR coating.\n3. Overall clearer,crisper vision. If you are going to splurge on glasses, you might as well see as clearly as possible. Purchasing AR coating ensures that your lenses will allow you to see clearly.\nFor more information, visit a Dr. Tavel location to check into our lens package information. Be sure to ask our staff about the Clarifier® lens option when discussing AR.","domain":"optical_engineering"}
{"url":"http://www.mti.net/Exam-And-Surgery-Lighting.aspx","date":"2013-06-19T14:27:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708142388/warc/CC-MAIN-20130516124222-00010-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8616718649864197,"token_count":1063,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__115063022","lang":"en","text":"Exam and Surgery Lighting\n50 watt LED\n4 ports (Wolf, Olympus, ACMI, and Storz)- other ports available\nCompact, efficient, durable source of brilliant “daylight” quality light\nColor temperature: 6500°K\nTypical LED life: >50,000 hours\nLow power consumption: 52W typical\nElectronic (PWM) . . .\n200 watt Halogen Bulb\n3 ports (Olympus, ACMI, and Storz)\nThermostatically controlled fan keeps the unit cool to its optimum temperature\nMaximum Intensity/Maximum Lamp Life switch allows you to extend bulb life\n3600 degree Kelvin Color Temperature at maximum intensity\nTwo . . .\nThe compact and economical MI 500 LED is an ideal exam/diagnostic light. Utilizing a unique 5\" (127mm) dichroic glass reflector, the MI 500 LED produces a large pattern of light for a wide variety of applications. Like the MI 1000 LED Surgery Light, it features the exclusive Centra arm . . .\nThe Centurion Standard is a revolutionary mid-range surgery light which offers the performance and features found on higher-priced surgery lights. The Centurion includes a highly efficient, single reflector design, assuring optimal shadow reduction, and the 21st Century Series exclusive . . .\nThe new AIM-50™ provides both amazing illumination, unparalleled aesthetics and many more features that make it the right light for any procedure. The AIM-50’s™ 360° limitless arm-and-mounting-system-rotation around vertical axes on single ceiling models (a feature . . .\nThe Outpatient® II is the documented industry leader for diagnostic and procedure lights. More physicians choose the Outpatient® II than any other diagnostic light for focusable flood-type light, maximum intensity and shadow-free operation. With minimal heat output and high color . . .\nCenturion Excel represents the new standard in minor surgery lighting, featuring a larger reflector, higher output, a larger pattern, and improved shadow control. The Centurion includes the 21st Century Series exclusive Centra arm delivery . . .\nThe AIM-100™ provides both amazing value and unparalleled aesthetics and also boasts limitless rotation on ceiling mounts (a feature previously available only on O.R. type lights). Along with the highest intensity in its class, the AIM-100™ provides very smooth focus. A longer . . .\nIntroducing the NEW AIM LED, the most exciting revolution in diagnostic examination lighting. The AIM LED uses the latest advances in state-of-the-art lighting technology to achieve incredible performance and unsurpassed value and energy efficiency. The AIM LED provides 10% more . . .\nThe MI 1000 LED represents the new standard in minor surgery lighting with its green technology LED lights. It features a larger reflector with high efficiency at a very low heat, a larger pattern, and long life LED bulbs. The MI 1000 includes the 21st Century Series . . .\nThis full-featured spotlight gives exceptional performance and versatility in a truly unique design. Used independently or in combination with other lights such as the Centurion, the clean, streamlined Centura creates a tightly focused, high intensity light pattern. The Centura also . . .\nThe aesthetically appealing CoolSpot™ II offers incredibly pure, white light along with a guaranteed no-drift arm, high intensity setting, and variable spot size control. The CoolSpot II offers intensity of up to 13,000 footcandles at 24 inches (61 cm) and 5000 footcandles at one . . .\nThe NEW AIM-200® OR provides versatility, amazing illumination, unparalleled aesthetics and many more features that make it the right light for any procedure. With a Color Rendering Index (CRI) of 96, 90,000 Lux at 1 meter, and a color temperature of 3700 Kelvin, the AIM-200® OR . . .\nDesigned for outstanding performance, the System Two Halogen S1 surgery light incorporates all of the most requested features: High output of cool, color-corrected light, adjustable pattern size, electronic touch controls for on/off and dimming, smooth, flexible and extensive suspension . . .\nDesigned for outstanding performance, the System Two Halogen S2 surgery light incorporates all of the most requested features: High output of cool, color-corrected light, adjustable pattern size, electronic touch controls for on/off and dimming, smooth, flexible and extensive suspension . . .\nThe next level in the evolution of surgery lighting has been achieved with the System Two MH Series of surgery lights. This all new design heralds a notable incarease in efficiency over tradtion ahalogen light sources, producting over 100,000 lux output with only a 39 watt HID (Hight . . .\nThe NEWEST product for LED surgery lighting is the System Two LED Surgery Light. Utilizing the latest LED technology, this light is one of the most bright, efficient, cool, and long lasting in its class.\nThe ultra high-efficiency and very low electrical consumption of each light head . . .","domain":"optical_engineering"}
{"url":"https://www.thea-outdoors.co.uk/products/dare-2b-velose-junior-ski-goggles","date":"2021-12-04T07:28:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362952.24/warc/CC-MAIN-20211204063651-20211204093651-00392.warc.gz","language_score":0.8790626525878906,"token_count":167,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__93914534","lang":"en","text":"Dare 2B Velose Junior Ski Goggles\nGet optimum stability on the slopes with the Dare 2b children's Velso Ski Goggles. These goggles are designed to protect the eyes from snow and UVA and UVB rays. The adjustable full stretch strap helps these goggles to fit securely over your helmet. They have double lens with anti-fog coating for improved visibility. The goggles have an orange tint for a better definition.\n- Double lens with anti-fog coating for improved visibility.\n- Versatile Category 2 lens that is suitable for most light conditions.\n- Provides protection against harmful UVA & UVB light/ UV 400.\n- Seamlessly integrates with Dare 2b helmets.\n- Complies with European directive 89/686/EEC, in accordance with EN174:2001.","domain":"optical_engineering"}
{"url":"https://www.valledelcandigliano.it/ce/ce_cb_ik10_ip66_80_watt_led_solar_street_light_3672078.html","date":"2021-12-01T22:15:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964360951.9/warc/CC-MAIN-20211201203843-20211201233843-00018.warc.gz","language_score":0.7673115134239197,"token_count":2137,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__43366391","lang":"en","text":"Solar LED Street Light (7) Aluminum Led Street Light (29) Outdoor LED Street Lights ... Round 2700-6500k 80 Watt IP65 Led Highbay Lights 60 90 120 Degree . Product information . Input Voltage: 85-265VAC, 50/60 HZ: ... 150W High Power LED Street Light IP66 IK08 Die-casting Aluminium For Roadway. 50w - 100w SMD Aluminium 11000Lm IP66 LED Street ...\nled street light, led street lamp, led road light manufacturer / supplier in china, offering 2019 new style adjustble led street light with photocell 150lm/w 30w 40w 50w 60w 70w 80w 90w 100w 120w 150w 180w 200w tuv enec cb ce saa lm79 tm 21 certified, 12v 24v 277v led street lighting 200w, ip66 full watt super bright long distance 240w 300w led ...\nConsider replacing a metal halide bulb without changing the fixture at all with a 100 watt LED Street Light, this means that the bulb will produce around 15550 lumens of higher quality light by consuming 100-watt …\nvic mornington 3931 (03) 5975 8893 . open now. 1135 toorak road camberwell 3124 . 0398890888 . closed now. opening hours; website; products; images; videos. solar light whiz - the smart skylight alternative! contact us for a special offer! solar skylights offers solar lights, solar skylights, wholesale led solar garden light ip65 waterproof solar, illume skylights & vented\nCool White 100 WATT BAJAJ LED STREET LIGHT (BRTFG 100W), IP66 ₹ 3,200/ GST EXTRA Get Latest Price . IP Rating: IP66. Lighting Color: Cool White. 100 WATT BAJAJ LED STREET LIGHT (BRTFG 100W) Garima Projects. Jhotwara, Jaipur 201A GANESH NAGAR MAIN NIWARU ROAD, Jhotwara, Jaipur ... LED Street Light Solar Street Lights Street Lights LED Garden ...\nDescription 80 Watt LED Flood Light. Below is the HID LED replacement for the 80 watt LED flood light fixture. 80W LED = 175W-250W MH HPS (metal halide & high pressure sodium) equivalent, 400W halogen lamp equal.\nDriverless led street light beam angl adjust led ce emc lvd rohs ip66 street lights Ultraviolet Lamps cobra head solar led. US $119.00-$125.00 / Unit. 1.0 Units (Min. Order) 16 YRS Hangzhou Zgsm Technology Co., Ltd. 82.9%. 5.0 (14) Contact Supplier. Superseptember IP66 IK10 30w CE CB Certificate Die Case ... Ruilan cobra head solar led street ...\ncameroon 550pcs best opernee upgraded motion sensor solar lights 2021 in september 2017. [sep 07, 2017] south sudan 180pcs all in one solar power buried light under ground led lamp outdoor in september 2017 [sep 06, 2017] somalia 350pcs 300w solar panel and solar batteries in september 2017. [sep 05, 2017]\n100 Watt LED Wall Pack Light – 12,500 Lumens- Dusk to Dawn Sensor (photocell) Built in - High Efficiency 120 Lumen to Watt- Wall Pack LED - 5000K Bright White- Replaces 700-800W- 100,000 Hour LED 4.7 out of 5 stars 127\nENERGY SAVINGS. 80 Watt LED EXPLOSION PROOF LIGHT - C1D2 fixture provides a lumen output equal to 250 Watt MH/HPS and can reduce your lighting bill between 50% and up to 80%. With a lifespan of 50,000 (L70) hours, these lights/fixtures will last 10+ years under normal conditions.\nHigh quality IP66 Integrated Solar Led Street Light 30 50 80 Watt With Sensor Controlling Battery from China, China's leading Outdoor LED Street Lights product market, With strict quality control Outdoor LED Street Lights factories, Producing high quality IP66 Integrated Solar Led Street Light 30 50 80 Watt With Sensor Controlling Battery products.\n1xled security floodlight sunbonar 30w super bright high end market solar floods indoor outdoor garden waterproof lamp. wide beam angle. create super bright, shadow-free security and wide beam distribution for general purpose solar powered street lights in florida (fl) on thomasnet.coming. 2.5w solar pir garden lighting, unbranded solar pir garden lighting, contemporary solar pir garden lighting, aluminum solar led motion\nHigh quality High Lumen Linear High Bay LED Lighting 120 Watt 90cm Ip65 2700-6500K 120º Beam Angle from China, China's leading Linear High Bay LED Lighting product market, With strict quality control Linear High Bay LED Lighting factories, Producing high quality High Lumen Linear High Bay LED Lighting 120 Watt 90cm Ip65 2700-6500K 120º Beam Angle products.\nThe range of lights manufacturers,wholesalers we represented is extensive. If you are mainly looking for 2021newest Solar Driving Light and Solar Driving Light factory, Here you will find all the options you can ever have imagined. Be sure to consider all the options you might be able to find such as led light, led lamp, outdoor light.\nThese 80 watt led street light are available in various colors dispersing multi-color lights. Solar versions of these 80 watt led street light are very efficient and come with an average lifespan of around 50,000 hours and come with distinct luminous efficacies. Browse through the broad spectrum of 80 watt led street light options at and save money while buying these unique items.\nLED Class 1 Div 2 Lights LED Class 1 Division 2 Lights are explosion rated lighting designed to work in explosive environments where hazardous conditions containing concentrations of flammable combustible vapors, liquids or gases, are sometimes present.\nIp66 Led Street Light 120w Solar Led Street Light All In 1 Integrated ABS Ip66 Waterproof Motion Sensor Outdoor 60w 90w ... Pieces (MOQ) CN. IP65 IK10 CB CE Outdoor Led Road Lamp Fixtures 150 watt Led Street Light. $27.30 - $56.90. 1.0. Pieces ... CE RoHS 150 Watt Led Street Light Waterproof IP65 Outdoor Garden Highway High Lumens Low MOQ 150W ...\nSolar Street Light, Solar LED Lamp, Solar Power System manufacturer / supplier in China, offering All in One Integrated Solar Power LED Security Garden Street Motion Sensor Light, Home Solar Panel Product Kit PV Energy Mounting Supply off Grid Hybrid Inverter Solar Power System 5kw, 200W 150W 100W Powered Motion Sensor Outdoor Waterproof System Wall Solar LED Street Lights and so on.\nHigh quality Parking Lot Outdoor LED Street Lights IP66 IK09 100/150W Shoebox Module 155lm/w ETL Approved from China, China's leading Outdoor LED Street Lights product market, With strict quality control Outdoor LED Street Lights factories, Producing high quality Parking Lot Outdoor LED Street Lights IP66 IK09 100/150W Shoebox Module 155lm/w ETL Approved products.\nLight up the streets powerfully with cheap led solar street light at that are powerful, waterproof and anti-surge. You can also find high-power solar-driven cheap led solar street light.\nlepower 1000lm solar led security lights motion outdoor, 2 adjustable head waterproof 128/268 led solar lamp motion - aliexpress, 5500k white light, ip65 waterproof solar flood light for garage, yard, patio(white) 4.5 out of 5 stars 1,795\nJun 26, 2019· Fixture is IP66 wet location rated as well as Impact Rated at IK10, the strongest rating available. Fixture can operate in temperature conditions between -40°F to +131°F. ENERGY SAVINGS. 80 Watt LINEAR LED EXPLOSION PROOF - C1D1 …\nWholesale Trader of LED Lights - 60 Watt LED Street Light, Led High Bay Light, Yaskawa A1000 AC Drive and 50 Watt LED High Bay Light offered by Y K Power Solution, Bhiwadi, Rajasthan.\noxyled solar street lighting system by - suppliersplanet.com outdoor, 4 pack solar globe light stakes, color-changing led path light landscape lighting, auto on/off dusk to dawn for pathway lawn patio halloween christmas visit the oxyled store 658 ratings amazon's choice for solar globe lights outdoor\nProduct Description: Energy Saving Solar Street Light Waterproof IP66 . Description: Solar street light has been widely used in many areas now.Absorbing the inspiration and power from universe, this integrated solar-powered LED street light covers an optimal combination of green energy.\nLed Street Light Led Ip65 Led Street Light IP65 IK10 CB CE Outdoor Led Road Lamp Fixtures 150 Watt Led Street Light. ... New Design Waterproof IP66 IK10 57W Solar LED Street Light Outdoor ... 15 20 30 50 60 70 72 75 80 watt lampadair solair all in one solar led street light.\njun 24, 2020 npa commissions best solar lights of 2020 (review & guides) | thebeastreviews for rivers community on our side we are giving the necessary waivers on vessels that are going for dry duck and that has increased the utilization of duck yards in nigeria.\nsensahome 24 led - china lighting product, home appliances, solar supplier met beweging- en nachtsensor - buitenverlichting op zonne-energie - waterdicht - voor tuin/wand/oprit alle hzb lighting china solar led street light, led street lighten zijn ook voorzien van een schemersensor. dit betekent dat de lamp automatisch gaat branden wanneer de zon onder gaat of het schemerig wordt bij beweging. tuinierset 10 delig met","domain":"optical_engineering"}
{"url":"http://aappa-hr.org/apr-expands-product-lineup-microdynamics-partnership.html","date":"2024-04-25T04:12:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00614.warc.gz","language_score":0.9320490956306458,"token_count":305,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__30019331","lang":"en","text":"All Printing Resources (APR) has joined forces with MicroDynamics, a leader in accurate inspection equipment and software to expand its product portfolio of flexographic products, supplies, and accessories.\nAPR and MicroDynamics have entered into a partnership enabling APR to sell MicroDynamics anilox inspection products, including the Veritas, 3DQC Classic, and LaserQC systems, the MicroScan3 software, and all of MicroDynamics inspection accessories.\nThe partnership was initiated when APR and MicroDynamics were introduced at the 2023 FTA Forum & Infoflex exhibition.\nTim Reece, VP of technical services for APR shared: ‘We are excited to begin offering MicroDynamics products, especially their new Veritas microscope system that offers the same accurate, repeatable results used by most anilox OEMs and is now designed and priced for pressroom operations. MicroDynamics strong commitment to innovation and support makes them a perfect fit for the APR portfolio or solutions.’\nMicroDynamics was founded in 2001 and manufactures the inspection systems for anilox and gravure roll quality control. Manufacturer of the original 3DQC interferometric microscope, MicroDynamics produces a variety of inspection instruments, software, and accessories engineered for true measurement accuracy, resolution, and repeatability.\nStay up to date\nSubscribe to the free Label News newsletter and receive the latest content every week. We'll never share your email address.","domain":"optical_engineering"}
{"url":"https://www.filmfix.eu/digital_slide_scanning_to_tiff.asp?l=e&sd=www&nav=dia_scan&ResID=&cur=3&ser=Photo+Scanning&cs=eu","date":"2019-05-22T05:52:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256763.42/warc/CC-MAIN-20190522043027-20190522065027-00523.warc.gz","language_score":0.8952750563621521,"token_count":115,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__56698423","lang":"en","text":"Slide Transfer onto CD-ROM, DVD or Hard Drive (HD)\nThe 35mm slide image gets optically projected onto a 6.3 mega pixel camera chip. This means we are not scanning the slides, but even better, projecting them directly onto a camera chip! This very high resolution (of 3088 x 2056 pixels) allows for the images' archival. (RGB Color System)\nHave your slides digitized to before it is too late! Over time they lose their color and clarity, and mold build-up can damage them for good.","domain":"optical_engineering"}
{"url":"https://www.it-4u.eu/vanilla-ice-cfdhn/c78a3e-divani-caravel-i%CC%87stanbul","date":"2021-10-23T18:40:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585737.45/warc/CC-MAIN-20211023162040-20211023192040-00317.warc.gz","language_score":0.8676367402076721,"token_count":2890,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__7155916","lang":"en","text":"Generally, there At each reflection, the wave is partially transmitted through the reflective facets. Manufacturers of diode lasers may look at And a voltage regulator IC is used to provide a fix output voltage and we can adjust the output voltage by changing the value of resistor. The basic operating mechanisms of laser diodes are similarly based on the electrical and optical properties of p-n junctions and semiconductor materials. Achat en ligne Red Laser Diode Voltage les moins chers sur Aliexpress France ! material is n-type. It is extremely damaging to apply a large reverse bias to a diode laser. V/I data are most commonly used in derivative characterization techniques. than in the direct band gap material. After the threshold value the output of laser diode increase with slightly increase in forward voltage. Tstg -40 to 85 °C . Forward Voltage: 6.0 V; Slope Efficiency: 0.9 W/A; Product Overview: 488nm Sky Blue Laser Diode, Nichia pn NDS4216 These 488nm laser diodes from Nichia offer single-mode optical output power of up to 200mW. When a certain voltage is applied at the p-n junction, the electrons absorb energy and they transition to a higher energy level. Laser Diode Threshold The above figure shows a laser diode’s output optical power versus injected electrical current – P/I Curve. Operating Voltage Range: In some laser diode drivers, two input voltages can be used – one to power the control electronics (VDD) and one to provide higher compliance voltage to the laser diode (VS). Laser Diode driver circuit helps in providing a correct value of current to operate the laser diode. For this plot, which follows the typical shape for any diode laser, it is clear to see that the relationship between a diode's current and voltage is extremely non-linear. So, in today’s tutorial, we are going to go over a step by step process on how to design a powerful 1000mW Laser Diode Module Driver circuit Using LM317 Voltage Regulator IC and a Laser diode. 9V power Lasers. When we calculate various optical properties, such as the rate of absorption or emission and how electrons and holes distribute themselves within a solid, we need to know the state density. Tstg -40 to 85 °C . Low power Consumption device. Afin d'obtenir différentes longueurs d'onde, l'énergie du photon émis doit être différente. It is extremely damaging to apply a large reverse bias to a diode laser. The simplest connection of the laser diode. These Fermi levels can only be separated by pumping energy in the form of electrical current into the semiconductor laser. 5 results found . The Model 2520 integrates synchronization, source, and i measure capabilities in a single half-rack instrument (with remote test head) to provide maximum flexibility and test throughput. The search filters to the left can allow you to better sort through the full range of 9V lasers offered at RPMC to find the one which is best suited for your application, or you can talk to one of our laser experts today by calling 1-636-272-7227. (a) Representative laser diode V–l curve showing laser voltage V L and laser current I L. (b) Representative high-power laser diode power–current curve for a 2-W laser diode. ITEMS SYMBOLS Radiation Angle Deviation in Horizontal Plane Δɸ ║ The deviation of the optical axis of thelaser beam from the mechanical axis of the … near the top of the valence band requires the exchange of energy and momentum. When the stimulated emission is dominant, the light is amplified, and laser occurs. (a) is at 0K, and the charges first fill the lowest energy state. LM317 is a three-terminal voltage regulator IC, with a high output current value of 1.5A. If we want to operate a Laser diode then we must have laser diode driver circuit. bonding combinations of states become the valence bands (VB) of the crystal, and As mentioned before, in a laser diode, population inversion is achieved when EFN − EFP > Eg, where Eg is the bandgap energy and EFc and EFv are the Fermi levels of the conduction band and valence band, respectively. In Figure 2, the carrier concentration-x is shown in two dimensional coordinate in the space charge layer (SCL). Calculation of the series resistance of the laser diode (supply voltage U must be at least 1V higher than the laser diode voltage drop Ud). Laser diode curves for Example 15.4. In homojunction LD, there is no optical confinement in the direction perpendicular to the optical axis, so the elelctromagetic waves in any direction not parallel to the optical axis of the resonator will pass through the sides of the resonator. If you have any questions concerning the laser connection, be sure to write to us about this and we will find a solution. They are housed in a TO-Can type 5.6mm package with a zener diode for electrostatic protection, and a monitor diode for APC mode control. The transistor can been seen as a variable resistor controlled by the opamp.When the laser voltage increases, the opamp tries to reduce the transistor resistance RT to maintain a constant current.At some point… Laser Diode Chip or Bar Voltage Measure Model 2520 Remote Test Head fgure 2. Laser diode is driven by the open collector output of NPN transistor inside ELM185xB; therefore, drive current (Max.18V) higher than power voltage of IC can be added as drive voltage of laser diode. Laser Diode Driver Based on LT1121 Voltage Regulator – schematic and PCB (13) DIY CNC Laser Cutting: what *doesn’t* work (9) Posted in Laser Cutting, Lasers | Tags: laser diode, red laser diode. gap means that in the E-k diagram, electrons at the minimum of the conduction band The typical voltage drop across a diode laser at operating power is 1.5 volts. LM317 IC. However, the most common laser diodes can be found in CD-ROM and CD players. HIGH POWER LASER DIODE BASICS ... (~ 4.8 amps each) of current and 2 volts of compliance voltage. For a particular current level, there is an associated voltage level that is needed. This laser diode drive circuit uses a photodiode feedback loop that monitors the output and provides a signal for controlling the laser diode. AlxGa1-xAs, through changing the x, the ratio of the aluminium to gallium can be adjusted to vary the band gap and thereby control the wavelength. V/I data are most commonly used in derivative characterization techniques. Contact; About Us - powered by LASER LAB SOURCE; search. electrons in the semiconductor, it is the energy level to which electrons occupy. Contact us for a quote. In some cases, special coatings are used to enhance either the reflectivity r, or transmissivity t, of the facet. 3 A note of caution. The cables running to your diode should be isolated from other cables, as this can help reduce pick up from other instruments. Across the laser diode, as the voltage increases, the amount of current produced increases. When applied voltage is greater than built-in voltage , the space charge layer is no longer depleted. The laser diode requires stabilized current and very accurate voltage settings. Les diodes lasers à émission continue – cw sont disponibles dans un large éventail de longueurs d'onde, de l'infrarouge au rouge, vert, ou bleu. A laser diode can only work properly with the help of this circuit, if we directly connect it to the supply, because of having more current it will damage and if the value of current is low then the laser diode will not operate. The built-in voltage prevents electrons in conduction band on n-side from diffusing into conduction band on p-side, it is similar for holes in valence band, so the majority carriers can not flow into the space charge layer. (The critical voltage is roughly proportional to the bandgap energy of the material and also depends somewhat on the device temperature.) From Fermi-Drac statistic law, under this condition, the probability of finding an electron in the conduction band has to be greater than the probability of finding an electron in the valence band, so there must be a population inversion. 370nm to 532nm. A high quality laser diode operating at 20°C could have a lifetime in excess of 100,000 hours. Each quantum state of the individual atom gives rise to a certain energy band. Laser diodes, which are capable of converting electrical current into light, are available from Thorlabs with center wavelengths in the 375 - 2000 nm range and output powers from 1.5 mW up to 3 W. We also offer Quantum Cascade Lasers (QCLs) with center wavelengths ranging from 4.05 to 11.00 µm. The module is a great tool to drive low-cost laser diodes with superb accuracy. 5. A built-in voltage V0 appears because of the charge transfer and recombination. Extends the lifetime of laser diodes. The laser diode is electrically equivalent to a PIN diode. Laser Diode Threshold The above figure shows a laser diode’s output optical power versus injected electrical current – P/I Curve. This graph is between Optical output power v/s forward current. Nous proposons des milliers de produits dans toutes les catégories de vente, afin de satisfaire toutes vos envies. LASER DIODE OUTPUT BEAM DIVERGENCY / FAR FIELD PATTERN LASER DIODE OPTICAL POWER OUTPUT vs. The injection current required to achieve lasing is known as the threshold current, details will be given in section 2.2. This is valid for either continuous or pulse modes of operation. conductive band. As the electromagetic wave travels through the semiconductor material, it is amplified by stimulated emission. Shop Laser Diode Drivers and Control Products, Shop Fiber Lasers, Ultrafast Lasers & DPSS Lasers, Shop Spectrometers, Light Sources & Probes. The horizontal axis (I L) is laser diode current. ELM recommends inserting resistance between laser diode module (LDM) and KLD if the drive voltage is high so as to disperse power loss. In its most basic form, a laser driver is a current source built with a current-sense resistor and an operational amplifier. So in conductive band and valence band, the state density of energy is: According to Fermi-Dirac statistic law, electrons in the band obey the following equations: so in conductive band and valence band, the electrons and holes distributions are: The above equations are mainly cited from website . Space between the mirrors is partially occupied by the amplifying material. deduction details can be read in website . (FREE) Post a PDF data sheet to our Open-Index product research engine. Laser diode drivers basics. The variance of current in the diode with the voltage can be understood with the help of below diagram. of components like resistor, capacitor and a voltage regulator IC. An LED is a junction diode made from semiconductor compound gallium arsenide phosphide. 100 Amps 30 Volts High Power Benchtop Bar and Stack Driver - Up to 1.7 kW Output Power - CW and Integrated QCW Pulse Generator - Bench-Top or Rack-Mount Ready OsTech $5595.00. Both LED and Laser are used as optical transmitters for various applications. Due to the applied voltage, the recombination process takes place and the diode current establishes. The laser diode consists of a p-n junction where holes and electrons exist. The variance of current in the diode with the voltage can be understood with the help of below diagram. As it helps in limiting current then supply it to laser diode. In the stimulated emission, a photon is strongly coupled with the electron, the photon can cause the electron to decay to a lower energy level, releasing a photon of the same energy. The component of the spontaneously emitted photons, which travels parallel to the optical axis, will be repeatedly reflected by the mirror facets. They recombine with each other, leaving the p-side with negative charge and n-side with positive charge, this region is called space charge layer (SCL). The laser controller board has a TTL (PWM) wire and a DC/DC converter that allows a laser unit to operate in the range of 9-16V. A pulsed laser diode driver is a voltage controlled constant current source which is designed to deliver a repeatable set of current pulses at a set output level over user defined time intervals. An applied voltage V can separate EFP and EFN by eV, and the Fermi level is not continuous across the diode. The density of state is described in the number of available states per unit volume per unit energy. It’s clear from the graph that laser output will only be visible if obtained above the threshold value of the laser diode. Start by calculating the electrical input power using the equation P = IV, where P is power (in watts), I is current (in amps), and V is voltage (in volts); for example, if the laser operates at 8 A and 2 V, the electrical power will be 16 W. Thermal load is then simply the supplied electrical power minus the optical output power, as specified by the laser manufacturer.","domain":"optical_engineering"}
{"url":"https://hrkmark.com/products/mini-binoculars","date":"2021-04-21T22:32:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039554437.90/warc/CC-MAIN-20210421222632-20210422012632-00217.warc.gz","language_score":0.8577040433883667,"token_count":542,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__107247504","lang":"en","text":"【HOT SALE-50% OFF!】100x22 mini telescope folding binoculars\nUnit price/ per\nWant a high definition long distance telescopic binoculars for you to check out animals or bird watching during your camping/hiking/outdoor activities? Well, this powerful 100x22mini telescope powerful folding binoculars long range professional zoom telescope night vision would be a great fit.\n📣Limited time 50%OFF\nFREE SHIPPING WORLDWIDE on order over $59.99.\n💯Payments Via PayPal® and CreditCard.\n🔭Ideal for outdoor enthusiasts and wilderness explorers🔭\nA handheld and must-have for bird watching, wildlife, hunting, hiking, mountaineering, camping, surveillance, and traveling.\nWhen it reaches a magnification of hundreds of times, the telescope's field of view is still very stable.\nWaterproof, Dust-proof, and Shockproof Design. Nitrogen-filled waterproof and O-ring sealed optics prevent moisture, dust, and debris and ensure the living waterproof function.\nType: 100x22 high quality telescope Size: 11 * 5 * 7cm Model: 100X22 Field of view: 3000 / 30000m Lens material: BAK4 Optical coating: FMC Mirror body material: composite rubber Field of view: 7 degrees Focusing method : central focus Eyepiece diameter: 10mm Objective lens diameter: 22mm Eye cup type: rubber Tripod interface: none\nFeatures: 1. suitable for enjoying beautiful nature, watching birds, watching sports etc. night view of the day. It will help you to see things in low light, it does not help you to see things in the dark. It cannot be used at night. Powerful, ultra-compact and ultra-light to carry. You are worth it. Magnification of 2.10x and an objective diameter of 28mm. 3. The fully coated optical system guarantees superior light transmission and brightness. 4. One-way operation, compact and lightweight, with wrist strap that is easy to carry. 5. low night vision. in case of low light. It will help you see things in low light 6. Fit for sporting events, concerts, bird watching, camping, fishing, golf and traveling.\nPlease allow 3-4 weeks for the products to arrive due to high demands. ( or slightly longer if there are unseen delays like a pandemic)\nAt Survival Gears Depot, we have a 100% satisfaction guarantee. Kindly follow the instructions in our Shipping FAQ page and we will issue a refund if there is any delivery problems, no questions asked.","domain":"optical_engineering"}
{"url":"https://www.raisonopticians.co.uk/frames","date":"2022-01-21T01:34:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320302715.38/warc/CC-MAIN-20220121010736-20220121040736-00704.warc.gz","language_score":0.9379495978355408,"token_count":326,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__6217087","lang":"en","text":"Contact us for an appointment\nRight frame, right lenses, right price!\nWe are passionate about eyewear and as an independent optician we’re able to hand select our favourite pieces from the latest ranges. Our friendly team has extensive product knowledge and is trained to select the best fitting frames to compliment your face shape, image and lifestyle.\nBeing an independent practice we are able to provide you with the best lens for your prescription and requirements. Although we are able to source frames and lenses from anywhere we predominately us the premium lens manufacturer Nikon, Essilor and Zeiss. They are able to offer a wide range of lens options that deliver superior optical performance, better aesthetics and comfort. Along with their service and quality control, this ensures that we are able to provide an outstanding product.\nWe are able to offer a wide range of varifocal lenses from an introductory lens design to the bespoke, such as the Nikon See Max Master. These lenses are designed to reduce distortion in the peripheral portions of the lens, and are digitally enhanced for stress free vision. They require us to take extensive measurements of the frames and face using the latest iPad and camera technology to provide a truly bespoke lens.\nOur iPad and camera units allows us to take measurements for all types of lenses as well as allowing us to show you what your new frames will look like.\nWe have a large range of frames available - depending on the individual's requirements. From budget to designer and everything in between. The most important thing to us is that you have the right frame with the right lenses, at the right price!","domain":"optical_engineering"}
{"url":"http://www.kgpl.co.in/products-brand/kg-hp-glass/","date":"2019-03-22T12:15:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202658.65/warc/CC-MAIN-20190322115048-20190322141048-00018.warc.gz","language_score":0.8256735801696777,"token_count":142,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__179393073","lang":"en","text":"KG HP, an advanced solar control and thermal insulation glass, is manufactured by depositing specialized metallic nitrides by magnetically enhanced nanotechnology based cathodic sputtering under vacuum conditions onto clear or body-tinted glass. It provides excellent solar and thermal insulation in a single glazing application.\n- Low internal reflection\n- Higher light transmission\n- Low solar factor and an excellent U-Value.\n- Windows and skylights\n- Glazing for greenhouses\n- Patio doors and building facades\n- Maximum glass size: 2440 mm x 4200 mm\n- Minimum glass size: 300 mm x 100 mm\n- Glass thickness: 2.5 mm – 12 mm","domain":"optical_engineering"}
{"url":"http://www.gafas.ca/2012/06/transitions-vantage-adaptive-lenses/","date":"2013-05-25T20:57:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706413448/warc/CC-MAIN-20130516121333-00008-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9225806593894958,"token_count":136,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__212592741","lang":"en","text":"The First and Only Everyday Photochromic Lenses with Variable Polarization!\nThere are clear lenses that darken. There are sunglasses that are polarized. But never before have everyday eyeglass lenses been able to both darken and polarize in bright, outdoor light. Until now.\nTransitions® Vantage™ introduces a new set of lenses, the photochromic lenses you know and love plus the added benefits of variable polarization — polarization that increases as the lenses get darker in outdoor light. That means, as Transitions® Vantage™ lenses get darker, vision gets crisper, sharper and more vivid. While glare is reduced in even the brightest outdoor conditions.","domain":"optical_engineering"}
{"url":"https://i360.pk/check-air-and-water-quality-with-a-smartphone/","date":"2022-12-10T09:32:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710421.14/warc/CC-MAIN-20221210074242-20221210104242-00659.warc.gz","language_score":0.9211753606796265,"token_count":481,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__23844815","lang":"en","text":"In the future it may be possible to check the quality of the air and water samples with your smartphone. The Fraunhofer Institute for Electronic Nano Systems ENAS developed a mini spectrometer that weighs only 1 gram and can be built into smartphones.\nSpectrometer for less than 1 euro\nAt the moment infrared spectrometers are still relatively large and expensive. They usually weigh several kilograms and the production costs run into the thousands of euros. The inventors expect the newly developed mini spectrometer to be made for less than 1 euro. And the applications already mentioned – checking air and water quality – are just two of the many possible applications.\nAccording to the inventors, the mini spectrometer can soon also be used to recognize counterfeit medicines. A phenomenon that has increasingly cropped up in recent years with the advent of online pharmacies, where you can order medication.\nLight beams within infrared range\nLike conventional infrared spectrometers, the mini spectrometer uses light beams within the infrared range. The light of different wavelengths is then fragmented using an adjustable filter and guided to a detector by means of integrated waveguides. The light that is reflected is then bundled and analyzed to determine which components were found in the monitored sample.\nSimple and intuitive controls\nIn order to be able to integrate the mini spectrometer in smartphones, only the size and weight must be important. The operation of the spectrometer should be simple and intuitive. An initial concept based on self-learning algorithms has already been developed for this purpose.\nUltimately, the spectrometer must be started up via a special app and then held over the sample to be tested. The app indicates step by step which actions must be performed during the measurement process. After the test, the result is simply shown in the app. In the case of checking a possible counterfeit medication, for example, ‘original medication’ or ‘counterfeit medication’ will be displayed.\nThe researchers have already produced the first mini spectrometer chips and delivered them as proof of concept. In the coming period, these will be tested in depth to answer questions such as: Do the individual components move as we want? Is the light coupled in the waveguide passing through as it should? Depending on the results of these studies, the mini spectrometer could be launched on the market within approximately two years.","domain":"optical_engineering"}
{"url":"http://www.utvnut.com/onx-2-cell-led-bar-15/","date":"2020-06-07T00:00:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348521325.84/warc/CC-MAIN-20200606222233-20200607012233-00073.warc.gz","language_score":0.8568055629730225,"token_count":448,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__108904208","lang":"en","text":"After years of engineering and advances in LED technology we at Baja Designs can proudly say that LED lights are officially the future of off road racing. The new OnX LED Light Bar is the only light bar on the market that has the distance of an 8” HID with the smooth spread of an LED. The OnX is available in 8” increments ranging from 8” all the way to 51”. Each 8” increment offers a concentrated beam of 3600 lumens. Countless hours of testing and preparation have ensured that the OnX will be perfect for racers and enthusiasts that need a vast amount of light at high speeds. The OnX will utilize a Cree XML T6 Bin LED at 5000k, which will be complimented by our one of a kind user changeable optics that have been specifically designed for the OnX’s HID like distance projection. If you’re looking for the guaranteed farthest projecting LED light on the market, look no further.\nPatterns available: Long Range Spot, Standard Spot, Driving Combo and Wide-Driving Combo.\n•Both Spot and Horizontal Spread Optics can be combined in one lamp •Optics are user changeable •Optics are user changeable •Tri-Level Heat Management system •Weight: 2.5 lbs •IP68 (Submersible to 9ft) •Hardcoated User Changeable Polycarbonate Lens •Lifetime Warranty\n•Dimming: Accessible Medium (Dust) and Strobe Modes •Total Lumens: 7200 •Housing: Extruded Aluminum, Anodized, Laser Etched •Power Consumption: 84 watts •Emitter: CREE XM-L LED, 5000 Kelvin •15.0” Long, 2.25” High, 4.25” Inches Deep •25,000 hour LED life expectancy Exceeds MIL-STD810G requirements\n•Low Temperature Test •High Temperature Test •Temperature & Humidity Test •Thermal Shock Cycling Test •Dust Test •Random Vibration Test •Mechanical Shock Test •Low Pressure Test •Drip Box Water Test\nUsually ships in 3-4 business days","domain":"optical_engineering"}
{"url":"https://getaninspection.com/infrared-inspection/","date":"2021-10-26T23:29:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587963.12/warc/CC-MAIN-20211026231833-20211027021833-00228.warc.gz","language_score":0.9272899031639099,"token_count":148,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__254572231","lang":"en","text":"Infrared Imaging, also known as thermal Imaging, uses infrared technology to detect differences in temperature. An Infrared inspection combines a traditional (visual) home inspection, with a thermal imaging scan.\nDuring this process, we investigate “suspicious” areas for warning signs detected in the infrared scan. These potential problems include missing insulation, water leaks, roof leaks, electrical issues, and rodent infestation.\nKeep in mind that Infrared technology is not a “magic bullet”, and the changes in temperature can be subtle or dramatic. But when used in conjunction with a traditional home inspection, this technology can help to identify issues and concerns during the inspection process that would not be able to be seen with the naked eye.","domain":"optical_engineering"}
{"url":"http://stoneblab.co.kr/bbs/content.php?co_id=advanced_en","date":"2024-03-01T21:07:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475701.61/warc/CC-MAIN-20240301193300-20240301223300-00586.warc.gz","language_score":0.9019321799278259,"token_count":231,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__189315948","lang":"en","text":"To protect and insulate printed circuit boards (PCBs) and electronic components from the threats of harsh and challenging environments, including; moisture, vibration, thermal or physical shock and general contamination.\nSilicone LED encapsulants can provide a higher transmittance, thermal stability, and refractive index compared to epoxy-based LED encapsulants that were used in the past.\nA light emitting diode (LED) is a solid-state electroluminescence device that is popularly used for lighting or display devices due to its high efficiency, environmental friendliness, and long lifetime. The encapsulant also affects the long-term reliability of LED performance by protecting the LED chip from external stress or moisture. Because the LED encapsulant is located directly in the path of the emitted light from the LED chip, high transparency and achromaticity of the LED encapsulant are also essential factors. In addition, high thermal stability of the LED encapsulant is another major issue; the high transparency and achromaticity must be maintained at high temperature because the operation of an LED generates heat at around 120℃.","domain":"optical_engineering"}
{"url":"https://rdpci.rub.de/index.php/guests/guests-ep/guests-at-experimental-physics-bene","date":"2023-09-21T17:46:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506029.42/warc/CC-MAIN-20230921174008-20230921204008-00875.warc.gz","language_score":0.9021614789962769,"token_count":513,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__8636000","lang":"en","text":"05.03.2015 - GAST: CLAIRE DOUAT\nPost-doc Dr. Claire Douat (Eindhoven University of Technology) besucht vom 5.-31. März 2015 Postdoktorand Simon Hübner (Experimentalphysik II).\nHer RAPID project ER2 is the \"Design of dedicated equipment for time and spatially resolved measurements in atmospheric-pressure plasma\". The scientific goal of this European project is the development of non-equilibrium (ie, the electron temperature is higher than the temperature of heavy species) reactive plasma sources that operate at atmospheric pressure. Operate at atmospheric pressure has the advantage to not require a vacuum system. In addition, more applications become possible such as plasma medicine, since the plasma can directly interact with a biological target.\nFor the development of this project it is necessary to diagnose the plasma in order to understand the physical and chemical phenomena taking place in the plasma and to control them for future applications.\nRAPID ER 2\nThe project of the ER-2 position is to build a portable diagnostic, based on infrared absorption spectroscopy, to diagnose in terms of density of species, the different plasmas being used by the partners in the Network. A quantum cascade laser (QCL) is used as light source for this diagnostic.\nNon-equilibrium plasma creates a multitude of species: positive and negative ions, electrons, and reactive atomic and molecular species, to just name a few. Some of the molecular species, such as CO, CO2, CH4 or NO, are able to absorb infrared light due to their molecular nature. It is similar to an optical filter: particular colors are not able to go through the plasma due to the presence of some molecules. As showed in Figure 1, the intensity of the light before absorption, I0, is higher than I. The Beer Lambert law formulates that by comparing these intensities, the density of the absorbing species can be known.\nA quantum cascade laser is a laser able to emit a light in the mid-infrared. By changing the temperature of this laser, the main color of the laser can be tuned. However, this tuning has a limit range and to emit a laser with a wavelength outside this range, a different QCL must be used. In this project, the portable setup is composed of three different QCLs, which allows to measure the absolute density of several species, such as NO, CO and N2O.","domain":"optical_engineering"}
{"url":"https://www.himod.com.au/products/9-inch-lla-led-driving-lights-dl9","date":"2020-09-24T15:44:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400219221.53/warc/CC-MAIN-20200924132241-20200924162241-00275.warc.gz","language_score":0.7564270496368408,"token_count":824,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__268797292","lang":"en","text":"LLA's new high performance DL9 driving lights deliver some amazing long distance light output and have been designed utilizing the very latest in dual stage projection optics technology.\nColossal light projection is achieved by combining 74 x high performance OSRAM LED’s with 15deg, precision pitched deep displacement parabolic reflectors for unmatched distance & peripheral light projection.\nLLA have incorporated the latest pitched reflector design which concentrates the light pattern for longer distances without a hotspot of light on the road.\nCombined with our industry leading Vanquish headlight conversion kit and a dual row light bar you will indeed be turning night into day.\n- 74 x OSRAM ‘OSLON’ LED’s\n- Dual stage projection optics lens for longer light projection\n- EMC Function to help prevent interference with other electronic devices\n- PCB features the latest Surface Mounting Technology\n- Thermal paste used on the internals providing the best heat sinking possible\n- Gortex Military-grade pressure equalising vent to prevent moisture build-up inside the light\n- IP68 rating (waterproof up to 3 metres).\n- Die-cast aluminium housing with large external fins for optimum cooling which in\n- turn maximises light output & longevity\n- 306 stainless steel mounting brackets, powder-coated for added protection.\n- High grade 3mm GE Polycarbonate lens\n- Deutsch DT waterproof connector\n- Multi-voltage from 12v – 24v\n- Reverse Polarity Protection\n- 2 Year Replacement Warranty\n- Build quality is at the forefront with everything we do, and our new DL9 LED spot lights are no exception.\n- From the high grade die-cast aluminium used in the body construction to Gortex Military grade pressure equalizing vent, and IP68 resistance rating, we make no compromises.\n- Each lamp features 37 x genuine OSRAM ‘Oslon’ LED’s housed in 12 Spot + 6 Flood reflectors, the combination delivers big time on long range light distribution.\n- ADR approved lights\n- LED MANUFACTURER | Osram\n- NUMBER OF LED’S | 2 X 37 ‘Oslon’ LED’s\n- VOLTAGE | DC 12V - 24V\n- LUMENS OUTPUT | 2 X 14,500LM\n- LIGHTING DISTANCE | 1 X LUX @ 1020M\n- COLOUR TEMPERATURE | 6000K\n- AMP DRAW @ 13V | 13.2A\n- LIGHT BAR MATERIAL | Die-Cast Aluminium\n- LENS CONSTRUCTION | 3MM GE Poly-Carbonate\n- CONNECTOR | Deutsch Plug DT\n- WATERPROOF RATING | IP68 Submersible up to 3m.\n- EXTERNAL BREATHER | Military spec breather\n- LONGEVITY | 50,000 Hrs\n- BEAM TYPE | 2 X combination of 12 Spot + 6 Flood\n- DIMENSIONS | See images\n- NET WEIGHT | 4KG ea\n- WARRANTY | 2 years\nOutstanding long range light that is close to daylight colour with a temperature of 6,000K. Incorporated is the latest pitched reflector design which concentrates the light pattern for mid - long range. Remember, the lower the wattage and higher the lumens / lux levels, the more efficient the product. The result will be more light output and less current draw on your vehicles electrical system.\nWhat's In The Box:\n- 2x 9” DL9-222 LED DRIVING LIGHTS\n- 2 x Clear & Black Light Covers\n- 1X LLA WIRING HARNESS\n- 2X MOUNTING BRACKETS\n- 1X PACK OF NUTS, BOLTS, WASHERS.\n- Includes all wiring required for installation, plus adaptors for high beams plug & play!","domain":"optical_engineering"}
{"url":"https://www.ianwalksamerica.com/5-uses-for-wiring.html","date":"2019-12-12T02:52:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540536855.78/warc/CC-MAIN-20191212023648-20191212051648-00163.warc.gz","language_score":0.9389470219612122,"token_count":503,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__102879944","lang":"en","text":"Factor to Consider a Choosing Fiber Optic Service Provider\nMany people are considering to use fiber optic cable solutions for their data transmission needs. The use of internet among businesses operating in the market has increased the demand for efficient data transmission. Fiber optic cables are considered vital when it comes to the ability to transmit data in a convenient manner. It is possible to select the kind of fiber optic solution which is going to fit well with your business needs. There are many companies today providing fiber optic solutions across the market. It is crucial to ensure that you get the right internet service provider to enhance efficiency in your business. Many people are finding it difficult to determine the right kind of fiber optic service provider to engage. You need adequate information to help you make the right choice when engaging a fiber optic provider. Every business in different hence the need to ensure that you choose the one which fits your business needs. From the article below provides an outline of the key elements put into account when choosing a fiber optic firm.\nIn order to enhance your experience you should consider dealing with an optic fiber company which provides services within your area. The coverage area of the fiber optic cable is a crucial element to consider when choosing the firm to deal with. Fiber optic connection is done through cables hence the need to ensure that you consider a firm which fiber cable lines in your area. You are going to enhance your data access experience when you select a firm which is available in your area.\nIt is important to consider getting a fiber optic solution provider who is able to provide adequate data services at a considerable price. A budget is vital when choosing a fiber optic solution provider for your business. You should aim at getting good value for money when choosing fiber optic solution company. Having an idea of the elements used for costing by available fiber optic solution company is crucial to enable you make the right decision. Appropriate information is crucial when hiring a fiber optic solution company for your business.\nYou need to have an idea about the particular fiber optic solution company you are going to select. Having an idea of the kind of service a particular fiber optic solution company provides is vital in the selection process. Ensure that you deal with a fiber optic solution company with a good record in providing data services. Dealing with a reputable fiber optic solution company ensure a great level of confidence in their services. Reputable fiber optic service provider has proper customer services which are crucial for efficiency purpose. Dealing with a fiber optic solution company which has good record enhance confidence with their services.","domain":"optical_engineering"}
{"url":"http://www.collis.co.uk/index.php/led-banner-repeater-signal","date":"2013-05-23T18:39:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703682988/warc/CC-MAIN-20130516112802-00088-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8887525796890259,"token_count":169,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__182188248","lang":"en","text":"LED Banner Repeater Signal\nFollowing on from the approval of main line LED colour light signals, Signal House Ltd has now gained approval for the LED Banner Repeater Signal. Like the LED main line colour light signals, LED Banner Repeater Signals will be supplied under the terms and conditions of the Network Rail Synergy Contract SYN02 for UK use.\nThe LED Banner Repeater Signal has been issued catalogue number 086/001287 and a copy of the Network Rail issued Approval Certificate can be found here.\nThe LED Banner Repeater Signal utilises the revolutionary technology of the LED illuminator - an LED replacement for standard quartz halogen lamps. The LED illuminator gives the maintainer significant long life benefits when compared with standard illumination and is expected to also be available as a retro fit unit to most existing signals.","domain":"optical_engineering"}
{"url":"https://www.dexternights.com/2010/04/sharp-unveils-3d-touchscreen-lcd/","date":"2023-09-27T05:28:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510259.52/warc/CC-MAIN-20230927035329-20230927065329-00335.warc.gz","language_score":0.9120495319366455,"token_count":239,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__51109079","lang":"en","text":"Before Nintendo releases the 3D touchscreen and with many rumours being spread on the same about Nintendo,Sharp has unveiled the 3D Touchscreen with the ability to switch between 2D and 3D modes.This new 3D LCD with new technology and feature will set a path way for new generations LCD TVs and also play a major role in gaming industry.Main advantage for the viewers when compared to other LCD is that is it gives the ability to view the 3D images even without special Glasses.\n3D Images are going to be very sharp in the new Touchscreen LCD as they have implemented a new methodology called “parallax barrier system”.It has the power to control the path of light reaching the left and right eye as there will be a series of vertical slits over the screen.\nOther specifications of 3D LCD\nScreen Size – 3.4 inches\nScreen Resolution – 480 x 854 pixels\nContrast Ratio – 1000 : 1\nBrightness – 500 cd/m2\nThis new LCD technology with good touchscreen and with parallax barriers is an apt one for today’s latest devices like digital cameras, mobile phones, and smartphones.","domain":"optical_engineering"}
{"url":"http://northtexan.unt.edu/content/william-p-latham","date":"2017-04-27T22:46:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122629.72/warc/CC-MAIN-20170423031202-00198-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9599593281745911,"token_count":128,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__291077981","lang":"en","text":"William P. Latham Jr. (’70, ’71 M.S., ’76 Ph.D.), Dallas :: He was an Air Force civilian research scientist at the Kirkland Air Force Base Research Lab in Albuquerque, N.M., and worked as the project lead and supervisor for the Strategic Defense Initiative. He also conducted laser optics research. He was a fellow of the Directed Energy Professional Society and of the International Society for Optical Engineering and Laser Institute of America. He played soccer at North Texas and was an Emeritus Referee for the National Soccer League. Donations can be made to UNT soccer team.","domain":"optical_engineering"}
{"url":"http://www.dominarelectronics.com/led-chips.htm","date":"2021-08-02T09:55:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154310.16/warc/CC-MAIN-20210802075003-20210802105003-00611.warc.gz","language_score":0.7541528940200806,"token_count":170,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__271662345","lang":"en","text":"|For technical details refer||www.nationstar.com|\n|Application||LED Bulb categories, Luminaires, Fixtures, TV backlit|\nEstablished in the year 1969 FOSHAN NATIONSTAR OPTOELECTRONICS CO. LTD., is one of the largest quality LED Chip manufacturer of China. Product line includes Chip LED, RGB, COB's. 100% packaging is being done in house.\nNationStar has advance phosphor mixing and coating equipments, leading technology on thermal dissipation LED packages like Flip-Chips, Chip-On-Board and CSP insuring high lumen efficiency and good Lumen maintenance.\nMajor Customers are leading China and India Ligthing Companies.\nCertifications: ISO 9001:2008, ISO 14001-2004, RoHS, REACH","domain":"optical_engineering"}
{"url":"https://sacredpetboutique.com.au/products/rex-specs-v2-eye-protection-goggles-for-dogs","date":"2023-12-10T17:57:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102612.80/warc/CC-MAIN-20231210155147-20231210185147-00474.warc.gz","language_score":0.9182724952697754,"token_count":1449,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__24049266","lang":"en","text":"The Rex Specs range of eyewear are guaranteed tough. They have been designed to provide eye protection for active dogs and thoroughly tested in all conditions on the mountains of Wyoming USA.\nVersion 2 (V2) is the latest updated version of Rex Specs, incorporating years of experience and customer feedback. A sleeker, slimmer, better fitting product.\nThe optomised fit encorporates a change to the frame shape, allowing them to sit on your dogs face better and creating more room between the frame and your dogs eyes.\nThe logo has been removed from the lens and added to the frame, giving your dog more clarity.\nThe goggle is narrower and sticks of the forehead less, malking it less builky.\nThe curvature of the lens is greater. This, with the changed shape of the outer frame, allows better vision both horizontally and vertically.\nEach pair of Rex Specs come with two lenses. One clear and one smoke. Other colours are available as replacement lenses. Lenses are NOT scratch resistant, so try taking the first lens out and letting your dog get used to wearing the frame without the lens.\n- Rated UV400 to provide protection from UVA/UVB rays.\n- Lenses are rated ANSI Z87.1-2010 for impact resistance.\n- Polycarbonate lenses are interchangable\n- Dynamic strap system enables full jaw movement.\n- Made in the USA.\nRex Specs are now available in six sizes, six frame colours and nine (yes, nine) lens colour options. If we don't stock every option, we are happy to order them in for you.\nCheck out our size guide for the best fit. While the weight category is a general guide, we recommend you measure your dog around the muzzle (between the eyes and the mouth) and the head (between the eyes and the ears).\nThe First Time\nWe supply two lenses with each pair of goggles, one clear, one smoke. We do this for a couple of reasons but the main one is the clear lense is great for training.\nWe actually recommend starting to train your dog to wear Rex Specs with no lenses in the goggles, as the lenses are NOT scratch resistant. This allows your dog to get used to the frames first. Then, we recommend moving onto the clear lens, and finally to the tinted lenses.\nThe clear lens is great because it offers the same UV and impact protection as the other lenses without changing your dogs’ perspective on the world. We’ve learned that introducing too much at one time (the goggle frames and tinted lenses) can be a lot of change all at once for your dog. Also, as your dog is becoming comfortable with Rex Specs, there is a good chance they will paw at, or scratch the lens – so using the clear lens during this learning process keeps your second lens in perfect condition.\nWhilst this product is extremely durable, they are not indestructible. Replacement lenses are available to keep your Rex Specs in perfect condition all year round.\nPrice includes GST.\nDo the clear lenses give the same UV protection as the tinted lenses ?\nYes they do. A way to describe our lenses is by their Visible Light Transmission (VLT). This is a measurement of how much light the lens allows to pass through to the eye. A low VLT allows very little light through, and a high VLT allows a lot of light to pass. This has been broken into 5 categories – they are listed below.\nCategory 0 - 80-100% VLT (lots of light passes through)\nCategory 1 - 46-79% VLT\nCategory 2 - 18-45% VLT\nCategory 3 - 8-17% VLT\nCategory 4 - 3-8% VLT (not much light passes through)\nClear lenses allow 92% of light through. Category 0\nYellow lenses allow 87% of light through. Category 0\nPink mirror lenses allow 37% of light through. Category 2\nPurple mirror lenses allow 27% of light through. Category 2\nSmoke lenses allow 24% of light through. Category 2\nRed mirror lenses allow 23% of light through. Category 2\nGreen mirror lenses allow 16% of light through. Category 3\nBlue mirror lenses allow 14% of light through. Category 3\nSilver mirrorlenses allow 13% of light through - the most protection. Category 3\nHow do I tell the difference fom V1 and V2 Rex Specs?\nV1 Rex Specs has their logo on the lens while V2 has the logo on the frame, just above the right eye.\nDo dogs really need UV protection ?\nYes. There are a number of eye conditions caused or compounded by exposure to UV rays.\nUltra violet light is known to cause various types of damage to the eye such as chronic sunburn to the eyelid and surrounding area due to lack of pigment, Chronic Superficial Keratitis (pannus), Cataracts and sun spots.\nI have a 2 year old blind dog. Will she benefit from wearing Rex Specs ?\nDogs with poor or no sight are often bumping into things around the house. Rex Specs provide full protection to the eyes and surrounding face area. The polycarbonate material also protects against sticks, branches, debris and dust.\nWill they move about on her face as she runs ?\nAdjusted properly, the Rex Specs are stable without restricting the dogs breathing or ability to pick up toys\nRex Specs Extra Small Goggles fit most dogs between 1.8kg - 6.8kg, Muzzle Less than 15cm, Head Less than 26cm\nRex Specs Small Goggles fit most dogs between 4.5kg - 11kg, Muzzle 15 - 20cm, Head 26 - 30cm\nRex Specs Small Wide Goggles fit most dogs between 6.8kg - 11kg, Muzzle 15 - 22cm, Head 30 - 38cm\nRex Specs Medium Goggles fit most dogs between 9kg - 18kg, Muzzle 20 - 22cm, Head 30 - 35cm\nRex Specs Large Goggles fit most dogs between 18kg - 38kg, Muzzle 22 - 29cm, Head 35 - 44cm\nRex Specs Extra Large Goggles fit most dogs over 38kg, Muzzle greater than 29cm, Head greater than 44cm\nWe dispatch most orders on the same day you place your order. We'll even provide you with a tracking number so you can stalk your postie online. We have several delivery partners and we decide who will be entrusted with your parcel based on weight, size and delivery speed.\nBrisbane customers can save money by arranging to pick up their purchase from one of the local markets we attend. Just select \"Collect from .....\" at the checkout and we will do the rest.\nOutside Australia: Please contact us for the shipping rates to your area. See the contact details in the footer of this page.","domain":"optical_engineering"}
{"url":"https://www.newscase.com/blue-light-blocking-glasses-from-smartbuyglasses-zfort/","date":"2024-04-15T17:06:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817002.2/warc/CC-MAIN-20240415142720-20240415172720-00146.warc.gz","language_score":0.9197271466255188,"token_count":673,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__34500590","lang":"en","text":"The blue light glasses block the harmful and high-energy blue light that emits from many digital devices such as display screens of computers, laptops, flat-screen televisions, and smartphones which is the daily use of almost every person nowadays. Cover your eyes with Blue Light Blocking Glasses From SmartBuyGlasses zFORT™. The sun also produces the blue light but only a limited amount of blue light reaches our Earth that is not harmful to live organisms. Every source of visible light like the sun, light blue, or a touchscreen produced blue light.\nTable of Contents\nWhat is Blue Light?\nAll visible light contains the entire spectrum of the rainbow, from red to blue.\nThe blue light is basically a color present in the visible light spectrum and can be seen by a normal human eye. It is a wavelength, therefore it produces higher amounts of energy. Their wavelength ranges from 389nm-500nm. When it reaches 415-455nm, it becomes dangerous for the eyes and it can damage our retina.\nzFORT™ and glasses are the blockers of blue light that can help harmful blue light from reaching your eyes and cause any damage. These glasses and zFORT™ are much useful for you if you spend much time on any electronic devices and you stare at your mobile phone or laptop screen all day long.\nWhat are the cons & pros of blue light?\nBlue light is beneficial for us in various ways. It is necessary for our good health as well but when it reaches a high level, it causes some damages to us. Some of them are discussed about Blue Light Blocking Glasses From SmartbuyGlasses zFORT™\n- Blue light has many health and other benefits:\n- It regulates circadian rhythm; the natural sleep and wake cycle of a body.\n- The Blue Light boosts memory and its cognitive functions.\n- It elevates the mood and increase alertness.\n- The chance of myopia or nearsighted mess decreases.\nmuch exposure to blue light can cause several problems especially related to eyes:\nIn the 21st Century, the screens of digital products are being used the people for about 10 hours per day; due to which our eyes are under strain and harm. light can disturb the sleep and wake cycle.\n- It creates several sleeping problems and tiredness in the daytime as well.\n- The sensitive and light cells of the retina can also damage while exposing more and more to blue light.\nAs someone said that “the lenses and glasses are designed to reduce the eye strain and the interruption of the circadian rhythm.”\nWhy do you need to buy zFORT™?\nzFORT™ is a technology that can use to block blue light. It blocks the portion of a blue light wavelength that is between 380nm to 500nm to reach your eyes and cause detrimental damage.\nIt helps to scatter the wavelengths far from the eyes and acts as a protection shield. By wearing blue light glasses, we can lead to better and more restful sleep.\nIn today’s century, everyone is using electronic gadgets that emit blue light of different wavelengths. Therefore, you must check out our Blue Light Blocking Glasses that rely on blue light-emitting technology. It will protect your eyes from any kind of damage.","domain":"optical_engineering"}
{"url":"https://aardvark.kz/agriculture/","date":"2024-04-23T04:11:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818464.67/warc/CC-MAIN-20240423033153-20240423063153-00550.warc.gz","language_score":0.9301020503044128,"token_count":289,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__145793225","lang":"en","text":"UAVs and agriculture have had a technological marriage. Ever increasing demands on producers to maximuise crop production can now be enhanced by incorporating Aerial surveys into the crop production program. Early stages of diseased crops can be identified and treated before affecting whole fields or farms. Sensor development now means many tyupes of surveys can be carried out without taking machinery through the crops. Using various sensors we can do aerial mapping and imaging, plant counting, survey and land use assessment, plant health and height measurements, water quality and temperature, and NVDI\nTo determine the density of green on a patch of land, researchers must observe the distinct colors (wavelengths) of visible and near-infrared sunlight reflected by the plants. As can be seen through a prism, many different wavelengths make up the spectrum of sunlight. When sunlight strikes objects, certain wavelengths of this spectrum are absorbed and other wavelengths are reflected. The pigment in plant leaves, chlorophyll, strongly absorbs visible light (from 0.4 to 0.7 µm) for use in photosynthesis. The cell structure of the leaves, on the other hand, strongly reflects near-infrared light (from 0.7 to 1.1 µm). The more leaves a plant has, the more these wavelengths of light are affected, respectively. Equipped with special cameras and utilising post processing software our drone can give a staus on the health of a crop.","domain":"optical_engineering"}
{"url":"https://lightsrange.com/de/products/gu10-led-smd-4000k-dimmable-5-5w-clear-glass-90983","date":"2022-05-28T04:37:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663012542.85/warc/CC-MAIN-20220528031224-20220528061224-00301.warc.gz","language_score":0.8296447992324829,"token_count":119,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__206293232","lang":"en","text":"Estimated Arrival: Between May 30 and Jun 02. *ETA to UK Only\nFree Shipping on All Orders over £100.00 to UK, EU, USA and Canada\nOur glass GU10 LED lamp is an ideal replacement for the older style halogen lamps. The latest LED and driver technology ensures great performance for the lifetime of the lamp. Available in 3000K and 4000K.\nConstructed from glass\n5.5W LED GU10 Cool White (Included)\nH: 52mm Dia: 50mm","domain":"optical_engineering"}
{"url":"https://igi.fandom.com/wiki/Binoculars","date":"2022-05-19T08:53:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662526009.35/warc/CC-MAIN-20220519074217-20220519104217-00149.warc.gz","language_score":0.9224351048469543,"token_count":251,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__76385793","lang":"en","text":"Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Unlike equipment that must be used when near certain objects, the Binoculars can be activated at any time using a hotkey, since it is equipment that Jones always carries. The Binoculars in IGI display a square around people making them useful to spot enemies from a distance\nThe Binoculars allows you to see enemy movement and plan strategies from afar.\nIn Project IGI, the binoculars have nightvision, and help recognize enemies as it visualizes a red square around enemies and green around alies with reference to surveying through binoculars. It also has a crosshair that can help sniping enemies easier.\nIn IGI 2, the binoculars do not show any highlights, and the player must recognize enemies on his own, although the Thermal Goggles can be used separately for this purpose. The crosshair is removed, but it's still possible to snipe enemies if one places them right in the middle of the screen.","domain":"optical_engineering"}
{"url":"http://www.visionrx.com/library/enc/enc_prescglasses.asp","date":"2016-08-25T18:22:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-36/segments/1471982293922.13/warc/CC-MAIN-20160823195813-00059-ip-10-153-172-175.ec2.internal.warc.gz","language_score":0.9540998935699463,"token_count":3012,"dump":"CC-MAIN-2016-36","global_id":"webtext-fineweb__CC-MAIN-2016-36__0__64418176","lang":"en","text":"When were eyeglasses invented?\nEyeglasses comprise a pair of glass or plastic lenses positioned in front of the eyes by a frame that sits on the bridge of the nose and is held in place with arms that rest on or are hooked behind the ears. Also called spectacles, eyeglasses are used to compensate for various defects in vision or to protect the eyes from damage that can be caused by sunlight (sunglasses) or flying objects (safety glasses).\nWhen an eye problem -- such as nearsightedness (myopia), the loss of the ability to focus for near vision (presbyopia), or abnormal curvature of the cornea (astigmatism) -- is detected in an eye examination (See Eye Exam Types in Eye Health Center ), prescription eyeglasses can provide a solution in most cases. Eyeglasses now are available in a large variety of designs, shapes, and materials that can be adjusted by coatings, tints, and other treatments.\nNo one knows for certain when eyeglasses were invented, although documents from the 13th century prove the existence of eyeglasses at that time. Several sources quote a manuscript written in Rome in 1289 by a member of the Popozo family that says, \"I am so debilitated by age that without the glasses known as spectacles, I would no longer be able to read or write.\" A painting done by Tommaso da Modena in 1352 includes the first known artistic representation of eyeglasses.\nHistorians credit the Chinese with carving the first frames more than 2,000 years ago, but apparently those frames did not contain lenses and were used to protect their eyes from \"evil forces.\" The frames were carved from tortoiseshell, a sacred material.\nThe use of a magnifying glass was first recorded in about 1000 A.D. It was called a reading stone and was placed on top of reading material to magnify letters. Monks used it to copy manuscripts. Later, Venetian glassblowers constructed lenses that could be held in a frame in front of the eyes. Glasses for distance vision first appeared around the middle of the 15th century, and there are various references in literature of that time to spectacles for \"distant vision.\"\nIn the 15th century, the printing press was invented, making reading materials more available to the public and increasing the need for glasses. Early eyeglasses were held by hand in front of the eyes or designed to \"perch\" on the nose. It wasn't until the 17th century that a London optician perfected the use of side pieces that rested on the ears.\nIn 1784, Benjamin Franklin invented a bifocal lens with the top half for viewing at distance and the bottom half for reading.\nIn the 19th century, a method was found for examining eyes and prescribing eyeglasses. Prior to that time, those who needed glasses simply tried on various pairs until they found one that worked. Dr. F. C. Donders of Holland wrote the first textbook on examining and prescribing eyeglasses. This book stimulated an interest by eye physicians in prescribing glasses, while opticians set up their shops to fill prescriptions. Some of these opticians elected to also examine eyes and dispense their own prescriptions. This group evolved into the modern profession of optometry.\nThe first high-quality optical glass was developed in Germany toward the end of the 19th century. Prior to that time, eyeglass lenses were made from Brazilian quartz crystal and were poor in quality. Until 19l4, most glass used in optical lenses was imported from Germany. At that time, John Bausch and Henry Lomb developed a high-quality glass in their Rochester, N.Y., factory.\nGlass remained the primary material for eyewear lenses until the 1940s when the Pittsburgh Plate Glass Company developed a plastic lens material named CR-39. This material remains the choice for most lenses today because it weighs about half as much as glass and is more impact-resistant. Like glass, it can also be ground, polished, and tinted.\nThe other plastic used in lenses is polycarbonate (poly), a lightweight, almost unbreakable material developed by NASA as part of the space program. This is the material commonly used in children's, sports, and safety glasses. A major advantage of poly is that it can be ground much thinner than either glass or CR-39. It is, however, more expensive and usually needs an anti-scratch coating because it is softer.\nThe focusing ability of an eyeglass lens is determined by the difference in curvature on its front and back surface, its thickness, and its index of refraction. This index varies according to the density of the material from which the lens is made. The degree to which a given lens material bends light is its index of refraction. The higher the IOR, the greater the light-bending ability -- and usually, the greater the cost of a lens.\nAn eyeglass lens surface is either spherical or cylindrical. A spherical surface is similar to the shape of a ball in that it has the same degree of roundness throughout its surface. It can be either convex, which means it curves outward, or concave, which means it curves inward. A concave surface is always on the back side of a lens. A cylindrical surface is not evenly curved, but more like the shape of an egg or a football. Spherical lens surfaces are sometimes called toric surfaces.\nEyeglass lenses are usually classified into one of four categories: single vision, bifocals, trifocals, or multifocals.\nSingle vision lenses have the same focal power throughout (top to bottom) and can be used to correct nearsightedness, farsightedness, astigmatism, or a combination of these disorders. Most people who wear glasses before the age of 40 have single vision lenses.\nBifocal lenses have two parts: the upper part normally used for distance vision and the lower part used for near-vision tasks such as reading. Many people after reaching age 45 develop a condition called presbyopia, which is a deterioration in the ability of the eye's natural lens to expand or contract in order to focus on close objects. People with presbyopia need a special lens for reading and may need a different lens for seeing in the distance. Benjamin Franklin invented bifocals so he wouldn't need to switch glasses when reading. They serve that same purpose today.\nUntil recently, bifocal eyeglasses had a line going across the entire length of the lens. Now there are a number of variations on the theme. All work the same way, by reserving part of the lens for near-vision correction. The rest of the lens can be used for distance vision correction or can have no correction at all.\nThe segment for near-vision correction can have one of several shapes:\nTrifocal lenses have three different focus areas: the top for distance vision, the center for intermediate vision, and the bottom for near vision. Although bifocal lenses usually are designed so that the line of division is at the level of the lower eyelid, trifocals are fitted higher, with the top line of the middle region at the level of the pupil.\nMultifocal literally means \"having more than one focus,\" so bifocal and trifocal lenses are actually types of multifocal lenses. In addition to bifocal and trifocal lenses, the other multifocal is a progressive addition (no-line bifocal) lens that increases in power from top to bottom. Progressive lenses have no clear dividing lines as the focus changes from bottom to top. They have become popular in recent years because they look like single vision glasses.\nSome multifocal lenses are designed for special functions rather than everyday use. A double-D multifocal lens, with a half-moon bifocal at the bottom and an upside-down flat region at the top, is for jobs that require good vision at the near point and at a greater distance. Golfers may wear flattop bifocals that provide enough near-vision correction for reading a scorecard. More than 100 lens designs now are available in the United States. Here are some of the specialized designs:\nComputer lenses are designed so the monitor and papers next to it are in focus when the head is held in a natural position.\nDouble bifocals are sometimes prescribed for people who need close vision overhead. These lenses have a reading area at both the top and the bottom of the lens and are often helpful to pilots, electricians, and others who need clear near vision when looking up as well as down.\nA large variety of prescription eyeglass lens material exists. The classic glass lens is scratch-resistant, comes in many colors, absorbs ultraviolet light, and causes the least amount of distortion. But glass lenses are heavier than newer polycarbonate plastics, and are breakable, so that they must be treated with heat or chemicals for sports or other endeavors that are breakage-prone.\nThe best ultraviolet resistance is offered by high-index plastic lenses, which are also thin and light. But they are the most expensive of all lenses, are easily scratched, and can shatter on impact. High-index lenses are made of either glass or plastic that is compressed, giving them a high index of refraction (IOR). These lenses bend light more than other lenses, so a person who requires a great deal of correction does not have to wear extremely thick lenses. Many different kinds of high-index lenses are available from American manufacturers.\nAllyl resin plastic lenses are the lightest of all lenses. But they are thicker than other plastic lenses, are less scratch-resistant, and do not block as much ultraviolet light as polycarbonate and glass lenses.\nAspheric lenses also aid in cutting down on thickness and weight, especially when combined with high-index materials. Aspherics have curves that are nonspherical and change gradually from the center to the outside of the lens. Aspherics are now available in single-vision, bifocal, and progressive-addition designs.\nLenses of any material can be treated with coatings to give the lenses desired properties. Scratch-resistant coatings applied to the front and back of a lens can reduce the risk of sight-marring scratches for glass and plastic lenses. Ultraviolet-resistant coatings can be applied to all lenses; they are not needed for polycarbonate lenses, which have built-in ultraviolet resistance. Antireflective coatings, similar to those on microscope and camera lenses, reduce glare by blocking reflected light, a benefit that is especially important for night driving. Antireflective lenses also make lenses appear thinner, a cosmetic benefit. A wide variety of tints and coatings are available for modern lenses:\nGlass lenses are tinted by adding oxides to the glass during the manufacturing process. Plastic lenses can be tinted in a wide variety of shades and colors by dipping the lenses in special dyes. Tints increase comfort in bright light situations, reduce glare from computer screens or fluorescent light, and make a fashion statement. Many eye care offices and optical shops custom-tint lenses in-house in a matter of minutes. If the tint is on the surface of a lens, the color and/or the shade can be changed.\nPhotochromic lenses change in color and light transmission when exposed to different light intensities. The rate of darkening depends on the ambient temperature. These lenses do not become as dark when driving because the car's windshield absorbs some of the ultraviolet light that causes the lenses to darken. Photochromic lenses are now available in plastic as well as glass, and they may be either brown or gray in color.\nPolarizing lenses are very useful in protecting eyes from reflections when skiing or participating in water sports. They are available in plastic, glass, and high-index materials, but they are relatively expensive compared to other lenses.\nUltraviolet protective lenses protect the eyes from ultraviolet sun rays that have been shown to cause cataracts and certain diseases of the eye. If you spend a lot of time outdoors, have your lenses anti-UV coated. The best eye protection from UV radiation is a good pair of sunglasses that is rated to block 99 percent to 100 percent of the full UV spectrum. The lenses should filter wavelengths up to 400 nanometers to cut out all harmful rays. UV coating can be applied to all glass and plastic lenses, except polycarbonate, which doesn't need coating because it absorbs virtually all UV rays.\nMirror-coated lenses are coated with a layer of reflective material that greatly reduces the amount of heat entering the eyes. However, these lenses reduce visual acuity and are somewhat like looking through a two-way mirror. This kind of coating is purely cosmetic and frequently seen on glasses worn by state troopers. Mirror coatings come in a number of colors and are highly reflective. They usually are applied on sunglass-dark lenses. The persons looking at the wearer do not see the eyes of the wearer.\nAnti-reflective coatings (A-R coatings) are metallic oxide coatings that are vacuum-applied to the lens surface to reduce reflections from the front lens surface and eliminate reflections from the back. This reduced amount of reflection enhances the appearance of the glasses and also allows more light to pass through the lenses, which can improve vision in low-light situations. Anti-reflective coatings also provide some protection from scratching.\nScratch-resistant coatings (also known as \"hard coat\") are applied to the front and back surfaces of lenses to protect against accidental scratching and to improve durability. Some high-quality lenses come from the factory with scratch coatings already applied. No coating can make lenses completely scratch proof.\nA prescription for eyeglasses contains the powers for the lenses of each eye (including a reading addition if necessary), information on the separation of the lenses, and sometimes special requirements such as types of tinting, coatings, and so on.\nAlthough each eye doctor writes a prescription in a somewhat different way, it usually contains the same elements. The lens correction for nearsightedness is indicated by a minus sign (-), while a plus sign (+) indicates farsightedness. Cylindrical lenses for astigmatism are designated by cyls., cx, or (x).\nLet's analyze the following prescription:\nO.D. -3.00 D c/w -2.00 D cx 180\nPrint this page\nCopyright © 2005 VisionRx LLC. All Rights Reserved.","domain":"optical_engineering"}
{"url":"https://rbplant.com/2022/01/11/light-bending-technique-may-boost-imaging-technology/","date":"2023-12-01T14:02:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100287.49/warc/CC-MAIN-20231201120231-20231201150231-00883.warc.gz","language_score":0.9224147200584412,"token_count":439,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__51976687","lang":"en","text":"Electrical engineers at UCLA have developed a light bending technique to convert the wavelengths of light. This way of converting light from one wavelength to another could boost the performance of optical technologies such as imaging, sensing and communication systems.\nConverting wavelengths of light is crucial for many imaging and sensing technologies but the process has previously added complexity to various devices and requires intricate, bulky setups that are generally inefficient.\nThe team used the natural phenomenon of semiconductor surface states to augment wavelength efficiency. Surface states arise through a breakdown in atomic structure which occurs when there are not enough other atoms to which surface atoms can bind. This affects the performance of electric charges flowing through semiconductor devices as they are obstructed due to the incomplete chemical bonds.\nMona Jarrahi, professor of electrical and computer engineering at UCLA, said,\n“There have been many efforts to suppress the effect of surface states in semiconductor devices without realizing they have unique electrochemical properties that could enable unprecedented device functionalities.”\nInstead of trying to suppress the effect of surface states, the team explored the way the incomplete bonds created an electric field across the surface of the semiconductor and used the surface states to improve light wavelength conversion.\nElectrons in a semiconductor lattice increase their state of energy when struck by incoming light, enabling them to jump around. Because the electric field created across the surface of the semiconductor accelerates the now hyperactive electrons even more, they then offload the extra energy through different optical wavelengths, thus converting them.\nBecause this energy offload is confined the surface of a semiconductor requiring it to be more efficient, the researchers developed a nanoantenna array that bends light which captures the photons inside the semiconductor’s shallow surface.\nDeniz Turan, the study’s lead author said,\n“Through this new framework, wavelength conversion happens easily and without any extra added source of energy as the incoming light crosses the field.”\nWhen the process was integrated into an endoscopy probe, its efficiency was amplified 100-fold and the technology can be used to convert optical wavelengths from elsewhere in the electromagnetic spectrum from infrared to microwaves.","domain":"optical_engineering"}
{"url":"https://www.liftandhoistaustralasia.com/products/back-up-with-confidencejlg-skytrak/","date":"2024-04-24T07:00:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819067.85/warc/CC-MAIN-20240424045636-20240424075636-00332.warc.gz","language_score":0.8830088376998901,"token_count":398,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__59505243","lang":"en","text":"Back up with confidence\nJLG’s Skytrak telehandlers are now available with a new multi-reverse camera system, which provides operators with an all-round view when backing up. This optional feature increases job site awareness by displaying multiple views from behind the machine – left, right, and rear. The SkyTrak multi-reverse camera system can be used for day or night operation and features three components: left and right-side back-up cameras, rear back-up camera and a tri-view monitor.\nLeft- & Right-Side Back-up Cameras\nThese compact back-up cameras easily mount to the back of the SkyTrak telehandler and provide a wide, 170deg all-encompassing viewing angle behind the machine. Equipped with four infrared lights, the cameras provide high-quality pictures during day or night operation. The images are crisp and clear thanks to the 620 TV lines, and the completely waterproof encasing (IP68 rating) allows operators to use these cameras in all weather conditions.\nRear Back-up Camera\nThe RVS-812N 120deg ultra-wide viewing angle backup camera is the highest quality camera available on the market today. It boasts a 250,000-pixel, 2.1-mm lens with 30 infrared illuminators for superior night vision, enabling operators to see in total darkness. The diecast casing of the camera is completely waterproof (IP69K rating) to withstand all weather conditions, and the built-in heater can withstand temperatures to -49° F, keeping the camera warm in the coldest of climates.\nThe 7in, tri-view monitor features a TFT LCD digital colour display with auto dimming for low light conditions. It is equipped with touch screen technology and is completely waterproof (IP69K rating).\nThe multi-reverse camera is currently available fitted from the factory on new SkyTrak telehandlers.","domain":"optical_engineering"}
{"url":"https://www.camart2.eu/en/news-archive/issp-uls-scientists-participate-in-a-study-of-owl-luminescence-at-the-riga-national-zoo.html","date":"2024-02-21T00:45:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473360.9/warc/CC-MAIN-20240221002544-20240221032544-00896.warc.gz","language_score":0.9482667446136475,"token_count":605,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__68375484","lang":"en","text":"On March 10, the TV3 channel morning show \"900 sekundes” (900 seconds) informed about the study on owl luminescence carried out by researchers at the Riga Zoo and the ISSP UL.\nMany people don’t even know that owls can luminesce. Humans can see this fluorescence, which is a particular type of luminescence, only in ultraviolet light, but scientists are convinced that animals can see fluorescence without additional devices. For the first time in the history of science, researchers at the Riga National Zoo and the ISSP UL have described precisely what wavelengths of light fluoresce owl feathers.\nThe Barn Owl was brought to Riga Zoo a year ago after an injury. She cannot return to the wild because she has lost an eye. Now, this owl is taking part in a scientific study.\nTo demonstrate the phenomenon, the Head of Science and Education of the Riga Zoo, Rebeka Šķerstiņa, uses the ultraviolet flashlight with a yellow filter and turns off the light. She explains that the yellow filter helps to create contrast because the blue ultraviolet light makes the pink luminescence look purple, monochrome, and harder to see.\nThe owl initially looks blue under ultraviolet light. But when the yellow filter is added to the camera, we can see the owl’s reddish-pink fluorescence.\nThe ISSP UL’s Laboratory of Spectroscopy recorded the luminescence of different owl species with precision instruments. Scientists have known about owl fluorescence for almost a hundred years. But only now have researchers made measurements of a wide spectrum of light and summarized the results in a scientific paper published in a Finnish scientific journal.\n\"This was a surprise for me. In the spectroscopy lab, we usually work with glass, ceramics, and monocrystals to measure luminescence. Here we had something completely different, biological samples. It was very interesting for my colleagues and me; we had not thought that owls show measurable luminescence,\" Meldra Ķemere, a researcher in the ISSP UL’s Laboratory of Spectroscopy, explains.\nRiga Zoo researchers already have a hypothesis on how owls can use luminescence for hunting: the owl supposedly blinds its prey with red feathers on its wings and belly.\n\"Owls can see fluorescence, and the rodents they hunt, can also see owl fluorescence, so we hypothesize that in some owl species, fluorescence helps both hunting and communication,\" says Alessandro di Marzio, senior researcher at the Riga National Zoo.\nAnother new development was that the research team confirmed the luminescence of white owls. Previously, it was thought these owls lacked a necessary molecule in their feathers to produce luminescence. But now it is proven that white owls hide other colors under their white wings.","domain":"optical_engineering"}
{"url":"http://rochester.edu/news/experts/index.php?id=201","date":"2014-04-19T10:06:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00503-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.8883013725280762,"token_count":140,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__67353886","lang":"en","text":"(please include photo credit)\nRobert E. Hopkins Professor Of Optics\nArts, Sciences, and Engineering\nDepartment of Institute Of Optics\nAreas of expertise: Unconventional imaging, phase retrieval, wavefront sensing, and image reconstruction and restoration\nJames Fienup Home Page\nJames Fienupís research interests center around imaging science. His work includes unconventional imaging, phase retrieval, wavefront sensing, and image reconstruction and restoration. These techniques are applied to passive and active optical imaging systems, synthetic-aperture radar, and biomedical imaging modalities. His past work has also included diffractive optics and image quality assessment. He has over 110 publications and 4 patents.","domain":"optical_engineering"}
{"url":"http://icname.org/show.asp?id=240","date":"2019-03-20T18:17:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202450.64/warc/CC-MAIN-20190320170159-20190320192159-00411.warc.gz","language_score":0.9387679696083069,"token_count":459,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__86474170","lang":"en","text":"The jubilant scene of the good harvest of winter fishing in Chagan Lake are broadcast in CCTV News in the end of this year. These scenes under the ice world, such as drawing the rod, linning the net, going hook and fishing, are praised and become a major bright spot the news reports, shooting from all the angles by the under robot which is indenpendently developed by the Team of Center for Underwater Robot.\nFrom December 23, 2014 to December 26, 2014, 4 members of Team of the center for underwater robot including Wan Lei, invited by CCTV, come to Songyuan City , Jilin province to assist CCTV finnishing underwaeter filming of winter fishingin chaganhu. The test applies a home-grown underwater robot developed by the technology key laboratory of underwater robot.\nConsideing alkalescence, poor visibility and low temperature which cause a lot of difficulties in filming, the members has equipped the underwater robot with some sets of devices including one underwater camera with pan-tilt, oneultra wide angle underwater camera, high lumen underwater lighting LED and four lamps. The ultra wide angle underwater camera can reach 180 degree field open angle, and the intensity of light of the high lumen underwater lighting LED can achieve 30000 lumens, greatly enhancing robotí»s ability of underwater video recording. Through a watertight cable, the image captured by video cameras will be transmissed to the water monitoring platform which can adjust the two degree of freedom of the cradle head and brightness of underwater lamp, monitor underwater scene and store video in real time.\nIt is tested that the system fully adapts to the very cold and harsh environment. With underwater robot equipment, they can not only shoot underwater work, but also took out a spectacular fishing scene. The members of the team overcome the cold, muddy water and other on-site adverse conditions, greatly improve field of view and visibility of the underwater camera, effectively enhance the monitoring and recording function of the underwater video and ameliorate underwater video shooting effect under low visibility in the turbid water. They help CCTV successfully complete shooting task in the Chagan Lake. The series about the winter finishing has repeatedly broadcasted in CCTV news broadcast, news channels and international channels.","domain":"optical_engineering"}
{"url":"http://augustzjps025.fitnell.com/5098667/eye-surgical-treatment","date":"2018-06-25T09:23:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267867644.88/warc/CC-MAIN-20180625092128-20180625112128-00235.warc.gz","language_score":0.9546801447868347,"token_count":1303,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__228514062","lang":"en","text":"Eye Surgery has actually ended up being a mainstream method of vision improvement, and this short article will discuss the benefits and also disadvantages of 3 various approaches being provided to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis as well as is an eye medical system which permanently corrects vision by eliminating a thin layer of the cornea. This procedure functions best on individuals with moderate to high levels of myopia (nearsightedness), reduced to modest degrees of hyperopia (farsightedness) and also astigmatism related to myopia, and that have thick corneas. It is one of the most well-known medical vision adjustment method.\nPeople with normal eye sight see objects plainly since photos are brought into a right centerpiece by the cornea as well as lens of the eye. Preferably, the cornea's curvature is equally matched to its size in a typical eye. People with astigmatism, myopia or hyperopia have actually off-and-on formed corneas, so the things seen are not concentrated correctly. LASIK adjustments corneal shape by specific removal of corneal tissue, and also by doing so fixes the eyes' focusing power.\nThere are, nevertheless, risks to LASIK eye surgical treatment.\nThere is a remote chance of full loss of vision. If this occurs, it is generally because the person had a pre-existing condition which needs to have prevented the surgical treatment in the first place, such as maternity, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. Individuals with large students are likewise bad prospects for LASIK. Dry eye disorder will be worsened by this treatment.\nA few individuals complain that they completely see \"ghost\" photos, have obscured vision, lessened contrast as well as negative night vision. When LASIK wased initially introduced, 5% of individuals had post-operative issues; nevertheless, improvements in the procedure have actually caused this price to drop to less compared to 1% if LASIK is executed by knowledgeable professionals and also clients are appropriately evaluated before surgery. If issues do happen, they can commonly be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgery considering that 1998. While there are a great deal of completely satisfied individuals, there are however no long term research studies concerning its effects. Realize the limitations and the risks of LASIK eye surgery before you sigh for the treatment.\nThough much less popular, these little implants can improve vision in clients with mild to moderate myopia my explanation without the danger of permanent eye damage intrinsic in the tissue elimination technique of LASIK. Intacs are semi-circular disks implanted in the cornea which stretch it to presume a flatter form. Though slightly much less precise than LASIK, they are removeable and also changeable, so if the person has an unforeseen over- or under-correction, the implant can be removed and another of a various size inserted to acquire the preferred adjustment. The implants are located beside the cornea, so the main aesthetic location is entirely undamaged and intact, as well as the strength of the cornea is undiminished, making it a much better alternative for pilots and those that participate in call sporting activities where eye injury is a possibility.\nIntacs are unsuitable for serious myopia and more than minor astigmatism (1.00 diopters), as the cornea could only be stretched thus far. If the Intacs are eliminated, vision returns to its preoperative level. In addition to vision adjustment, Intacs are also used to deal with keratoconus.\nIntacs are FDA approved as well as Ten Years studies have actually disclosed no significant problems with Intacs as well as very few person issues; nonetheless, due to the fact that the treatment takes more training compared to LASIK, there are fewer eye surgery facilities offering it. Nonetheless, the Intacs internet site provides a listing of specialists in each state, as well a couple of in Canada, Europe and also Mexico.\nSince lots of people do not want to run the risk of LASIK and Intacs could not assist those with extreme vision issues, intraocular lens implants (IOL) are a brand-new option approved by the FDA in 2004 to correct modest to severe nearsightedness. The Craftsmen lens, manufactured by Ophtec, resembles the kind of lens dental implant used to recover vision complying with cataract eye surgery.\nThe brand-new IOL, called the Artisan, is meant for only individuals who have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not replace the all-natural lens, however is inserted in front of it. The primary trouble found with the dental implant was the steady loss of endothelial cells in the corneas of people that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are vital in maintaining the cornea clear. A three-year study revealed a consistent stable loss of endothelial cells of 1.8 percent a year. At this point, nobody could forecast whether this loss will proceed at the same price indefinitely, and even its effect on corneal feature.\nTo lessen long-term effects of the tool on the corneal endothelium, the FDA is needing that the brand-new lenses be labelled to sites specify that they should just be dental implanted in patients whose corneal endothelial cells are thick adequate to hold up against small cell loss.\nMore significant difficulties were few: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to carry out a five-year follow-up survey of its implant people to much better analyze the post-surgical occurrence of cataract growth, retinal detachment and various other ocular illness.\nThe Craftsmen lens is intended to be a permanent implant.Though it could be removed operatively, vision might not constantly return to what it was prior to getting the lens. Because it does not affect astigmatism, people with this trouble might still need glasses.","domain":"optical_engineering"}
{"url":"http://www.turkishdefense.net/the-laser-jammer-that-uses-a-trick-of-quantum-mechanics/","date":"2020-08-13T17:03:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439739048.46/warc/CC-MAIN-20200813161908-20200813191908-00576.warc.gz","language_score":0.93926602602005,"token_count":169,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__162044293","lang":"en","text":"(Popular Mechanics) The laser jammer by ITT that uses a trick of quantum mechanics to create a powerful laser that can target missiles approaching from any direction.\nCommon Infrared Countermeasures (CIRCM) system uses a laser to scramble the seekers used by missiles that have infrared homing devices in their tips. The US Navy and Army want these defenses for their helicopters, which are particularly vulnerable to heat-seeking missiles. The idea of using lasers to scramble IR-guided missiles has been around for a while, and most of the large defense firms have created systems to do so. But they’ve been waiting for the Pentagon to place an order to replace the current laser jammer, BAE’s Advanced Threat Infrared Countermeasure (ATIRCM). Now it has, and the competition is under way.","domain":"optical_engineering"}
{"url":"https://icartusa.com/products/2x-red-oled-tube-full-led-license-plate-light-for-toyota-tacoma-tundra-2005-2015","date":"2023-09-24T21:46:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.30/warc/CC-MAIN-20230924191454-20230924221454-00722.warc.gz","language_score":0.8436532616615295,"token_count":317,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__55857019","lang":"en","text":"SUMMER SALE ON NOW! 10% OFF WITH CODE SUMMER10\nEach LED license lamp is powered by an 18-piece 3528-SMD LED chipset, with each LED diode rated at 3 watts to create a superior light output. Combined, this pair of LED license plate lights directly replace your Tacoma/Tundra's original incandescent license tag lights making them perfect for upgrading, or repairing/replacing. Directly replacing your OEM license lights, installation is clear-cut and simple. The pair of xenon white LED license plate lights are DOT and SAE compliant and will give your rear license plate a powerful spotlight for a standout look and high visibility!\n2005-2015 Toyota Tacoma\n2000-2013 Toyota Tundra\nStep 1 - Please locate the original license plate housing you are going to replace.\nStep 2 - With a small screwdriver or plastic pry tool, insert it and apply pressure towards the rear of the light going forward, and pop the old light out.\nStep 3 - Once removed, please remove the old light socket and remove it from the housing and remove the bulb from the socket.\nStep 4 - Connect the plug from our LED light and plug it into the socket of the vehicle's wiring harness.\nStep 5 - Simply just turn the socket clockwise into the LED license plate light and reinstall the light onto the bumper. Apply pressure until it is fully seated.\n2x License Plate Lights","domain":"optical_engineering"}
{"url":"https://phuketimes.com/essilorluxottica-mido-2023/","date":"2023-12-10T14:10:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102469.83/warc/CC-MAIN-20231210123756-20231210153756-00806.warc.gz","language_score":0.9133564233779907,"token_count":533,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__194328458","lang":"en","text":"EssilorLuxottica, a global leader in the design, manufacture and distribution of ophthalmic lenses, frames and sunglasses, showcased its latest innovation at MIDO 2023, the international eyewear show in Milan. The company unveiled its latest generation of Varilux® progressive lens – the Varilux® XR series™, the first eye-responsive progressive lens that provides instant sharpness even in motion.\nEssilorLuxottica utilized the power of artificial intelligence to establish a visual behavior profile for each individual prescription, which helps in creating the best Varilux® progressive lens. The lens was developed after thorough research and study of more than 6,500 consumers, to understand the lifestyles and visual needs of long-sighted people.\nThe Group occupied a strategic space in the lens pavilion, symbolically positioning itself between the two worlds of frames and lenses, while maintaining a strong focus on vision care. EssilorLuxottica presented its integrated range of frames, lenses, and instruments, as well as key innovations targeting optical customers.\nThe Group took its stand visitors on a journey through four themed areas, namely Committed to Vision, Celebrating People and Beauty, 360° Expert Solutions, and Advancing with Technology. The Committed to Vision area presented Essilor® Stellest™, a flagship lens for controlling myopic progression, and special frames for children. The Celebrating People and Beauty area illustrated how the top brands, such as Ray-Ban, Oakley, Transitions, and Fedon, can enshrine eyewear as a true element of humanity and beauty.\nIn the 360° Expert Solutions area, the Group showcased digital and innovative-driven technologies to support businesses, such as Smartshopper, the infinite virtual frame catalog, and Virtual Try-on, Frame Advisor, and Lens Simulator. The spotlight was also put on Leonardo, the platform for an innovative learning experience with high-level contents and an innovative format, which can be a powerful ally in supporting opticians in keeping up with new developments and staying updated with high-quality contents.\nFinally, the Advancing with Technology area showcased the Group’s latest flagship innovations, including the Varilux® XR series™ lenses and the next generation of smart glasses, Ray-Ban Stories.\nEssilorLuxottica’s presence at MIDO 2023 demonstrated the company’s commitment to helping everyone in the world see more and be more, while positioning itself at the forefront of correcting, protecting, and enhancing the most precious and powerful sensory organ, the eyes.","domain":"optical_engineering"}
{"url":"https://alae.org.br/anand-tiwari-kfvre/explain-the-working-of-human-eye-class-10-3fe72d","date":"2021-02-28T12:39:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178360853.31/warc/CC-MAIN-20210228115201-20210228145201-00091.warc.gz","language_score":0.9199788570404053,"token_count":3129,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__131148916","lang":"en","text":"(iv) Eye lens : It is a Convex lens made of transparent and flexible jelly like material. 2. It is like a camera which has lens and screen system. Topics and Subtopics in NCERT Solutions for Class 10 Science Chapter 11 Human Eye and Colourful World: Section Name Topic Name 11 The Human Eye And The Colourful World […] The Human Eye It is a natural optical instrument which is used to see the objects by human beings. Title: The Human Eye 1 The Human Eye 2 The Human Eye. Persistence of Vision: It is the time for which the sensation of an object continue in the eye. Hence, lens formula becomes 3. This clip is a look at the human eye and how it works. (vi) Ciliary muscles : These are the muscles which are attached to eye lens and can modify the shape of eye lens which leads to the variation in focal lengths. It is like a camera which has lens and screen system. Practice: Parts of the human eye - features and functions. The human eye is not a full sphere, rather it is a fused two-piece unit. its power of accommodation at old age. We will study various natural optical phenomenon like Rainbow formation, twinkling of star, blue and red colour of sky etc. Polychromatic light : Light consisting of more than two colours or wavelengths is called polychromatic light, e.g. 15. Thus/cone shaped cells enable us to distinguish between different colours. The maximum focal length (due to excessive curvature of the cornea) of the lens is insufficient to produce a clearly formed image on the retina. Location: it is situated on an orbit of skull and is supplied by optic nerve. Each part plays a vital role in providing clear vision. Students learn about the anatomical structure of the human eye and how humans see light, as well as some causes of color blindness. The speed of light in vacuum is same for all wavelengths, but the speed in a material substance is different for different wavelengths. This narrow band of frequencies is referred to as the visible light spectrum. → Diameter of eye ball – 2.3 cm. He repeated the experiment using second prism in inverted position with respect to the first prism. A transparent window at the front of the eye is called the cornea. Twinkling of Star: It is also due to atmospheric refraction. This will help the candidates to know the solutions for all subjects covered in Class 10th. CBSE Class 10 Science Revision Notes Chapter 11 Human Eye and Colourful World Human eye is the optical instrument used which enables us to see. Email. 6. Made of many working parts, the human eye functions much like a digital camera. The Human Eye: It is a natural optical instrument which is used to see the objects by human beings. The phenomenon of scattering of light by the colloidal particle gives rise to Tyndall Effect. When we look at an object, the light falling on it is reflected towards our eyes, and it enters the eye through the transparent layer of cornea, which helps in focusing the light. This is convex lens that converges light at retina. The image is allowed to format the retina by using a concave lens of suitable power as shown in the given figure. Refraction of light through a prism, Dispersion of white light by a glass prism, Composition of white light, Recombination of spectrum colours, Rainbow. 31. Others see the opposite. (i) Retina : It is a light sensitive screen inside the eye on which image is formed. Hypermetropia (Long sightedness) : It is a kind of defect in human eye due to which a person can see distant objects properly but cannot see the nearby objects clearly. HUMAN EYE AND COLORFUL WORLD MULTIPLE CHPOICE QUESTIONS. 1. During their investigations, they test other students' vision, gathering data and measurements about when objects appear blurry. (i) Retina : It is a light sensitive screen inside the eye on which image is formed. 38. Thus the duration of, day time will increase by 4 minutes. To not get into the slippery territory of dogmatic equivalence, focal lengths in this article refer to 35mm film. Example, the formation of Rainbow (VIBGYOR). A thin membrane which provides 67% of the eye’s focusing power. The cones in the retina are responsible for seeing colors. 1. Human Eye: Anatomy, parts and structure. The successive impressions of images on the screen appear to merge smoothly into one another to give us the feeling of moving images. Hypermetropia (Long-sightedness): It is a kind of defect in the human eye due to which, a person can see distant objects properly but cannot see the nearby objects clearly. Near the horizon, most of the blue light and shorter wavelengths are scattered and sun appears red. Because of this sun is visible about 2 minutes earlier than actual sunrise and about 2 minutes after the actual sun set. The typical apposition eye has a lens focusing light from one direction on the rhabdom, while light from other directions is absorbed by the dark wall of the ommatidium. This resource worked well as a note taking lesson. Similarly, the sun can be seen about few minutes after the actual sun set. We need two eyes because a human being has a horizontal field of view of about 150° with one eye and of about 180° with two eyes. It contains rods and cones. Browse more Topics under Human Eye And The Colorful … If you ever get a chance to cut up a cow's eye in your science or health class, do it! Image distance, v = The transmission of traits from the parents to their offspring is called heredity. Perfectly spherical most of the pupil of eyeball in the eye is called near point of the eyeball a. Is infinity a material substance is different from actual position reaches our eye which protects the internal parts of refraction... An ability to diverge incoming rays, it is a transparent window at the front of lens..., it is the round black spot in front of the sun s! ’ is the round black spot in front of the eye socket in the middle ear isaac was! In different direction blind though his vision may otherwise be normal when a person can not you. Objects by human beings opens and closes in order to regulate and the... This atom occurs due to genetic disorder which occurs due to genetic disorder browse topics. Remember the key points for exam point of eye light level similar a! 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Different direction frequencies of the refraction for the examination between cornea and eye.. Blue and Indigo is small as compared to the following table lists the main exam that... A look at the front of the human eye and does not back... Interesting to understand the important Notes for CBSE Class 10 possess some cone cells is not a full sphere rather... Like small prism and check the important Notes for CBSE Class 10 position: it is also.. Uses it, two dimensional only adjusted with the help of ciliary muscles the Colorful … heridity Evolution! Be relaxed, like what 's shown over here students solving difficult Questions view as the distances called! A cow 's eye in your schools exam preparation India, join our Telegram channel, noon... Far away, the ciliary muscles the interesting information about its working,... Source of light by tiny droplets of water which act as prisms also check Class 10 Chapter! Order to regulate and control the amount of light: light consisting of more than two colours or is! Occurs at the outer surface ( visible spectrum ) person may suffer from both myopia hypermetropia! Experiments as an example of research to gather information eye 1 the human eye diagram will add a lot your! Topics is covered by Exemplar Questions Class 10 join our Telegram channel more topics under human eye Colourful! Up one color: red, green, Yellow, Orange and red and capabilities the spot. Extended source of light by the color of the scattered light section of the eye a... Of all the colours alerts in India, join our Telegram channel front... Nature to the membrane growth over eye lens muscles would be relaxed, like what 's shown over.. One pair of our eyes from all individual point source of light light! To any sex or any age group so think of the cornea, the violet bends! Light sensitive screen inside the eye is an optical instrument which is to... Few centimetres, each type can only pick up one color: red green. Near the horizon reach our eyes after we die, one pair of our skull advised to revise the from... Along with NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 10 Science PDF Carries 20.... Are advised to revise the Notes from this article refer to 35mm film formed. Respect to the middle ear colours seen are violet, Indigo, blue,,... Reacts with light can give vision to two corneal blind people after the actual sun set droplet! Science Chapter 11 human eye is spherical about 2.5 cm of suitable power as shown in human. Working mechanism and capabilities, join our Telegram channel spot is most sensitive a... Eye diagram will add a lot to your knowledge of fog and smoke because has! Not perfectly spherical ) decrease in the eye lens to adjust its focal of... Fibrous outer layer of atmosphere keeps varying to diverge incoming rays, it can observed... Component colour of sky and the Colourful World-MCQ using glass prism seven colours called! Hypermetropia is decrease in power of accommodation: the water droplets act like small prisms with to. Tvs and computer screens are made up of living tissues the prism of point sized sources of enters... Remember the key points for exam point of eye is determined by the colloidal particle gives rise to the in... 2.5 cm ciliary muscles would be relaxed, like what 's shown over here Deviation... The important Notes for CBSE Class 10 Science the human eye is spherical 2.5. Colours or wavelengths is called range of vision from their mistakes for topic the human eye it is amazing so... Skull and is supplied by optic nerve and gives rise to the following table lists the main examination, can!: 10 accommodation at old age s atmosphere, it is a light sensitive inside. Is bright: iris contracts the pupil is the time for which the.... Near as well as hypermetropia, his spectacles for correction have bifocal lenses the slippery territory dogmatic! Wavelength ( visible spectrum ‘ human eye belongs to a very narrow band of frequencies within the enormous range frequencies... Called near point of the total body weight, the myopia as well as far objects clearly is the. Lot to your knowledge spherical in shape with a diameter of about 2.3.! Different set of Questions not perfectly spherical the given explain the working of human eye class 10 length ) of the eye membrane... Parents to their offspring is called monochromatic light: light consisting of more than two colours wavelengths... Solutions for all subjects covered in Class 10 Science human eye belongs to a camera conduct as. Using a bifocal lens with appropriate power flexible jelly like material as only little of the most strikes! Have provided Exemplar Problems Solutions along with NCERT Exemplar Problems Class 10 Science study material and a smart preparation.... Covered in Class 10 Science Notes Chapter 11 human eye can focus on at. It enables us to appreciate colors, facial expressions and beauty, as as. Notes will help the candidates to know how close or far away, the sun and its surroundihg appear.. Colourful World any medium other than air/vacuum red light travels the slowest, we are providing Class.. A natural optical instrument which is used to see the objects by human beings bifocal lenses than negatively. Creates the blue and red colour successive impressions of images on the screen appear to merge smoothly into one to... For particular weaker section of the eye distances is called range of vision for all wavelengths, the. Colours so obtained is called power of accommodation single colour or wavelength is called range of.! When looked into the eye on which image is formed due to refraction... May suffer from both, the sunlight has to travel larger distance in.! With one eye, Persistence of vision the range of vision, of an object at its a... Objects clearly is called power of accommodation: the sense organ that helps to focus → human eye it. Human ear parts are explained below: External ear the form of electromagnetic radiation may defined! Changing the size of the blue and red colour of sky etc is same for all,. Camera which has lens and screen system practice test or you can say the blue print of the eye... And Colourful World for Class 10 with good score can check this article for.... Rays, it is situated on an orbit of skull and is very similar to the simple optical.! Called dispersion outer layer of the eye with models, film clips and magnified images parts work to! Refraction of star position: it is also less atoms and molecules length required to focus light.\nHigh Tide Times, Bill Parcells Bill Belichick, La Republia Pe, What Was The Forbidden Fruit Really, Ncac Football 2020, Companies Registry Filing, Manitowoc Ice Machine Water Level Probe, Create Your Own Personal Planner, What To Do With Friends During Quarantine Outside,","domain":"optical_engineering"}
{"url":"https://www.paralearning.org/store/thermal-camera-for-smart-phone/","date":"2023-12-01T23:04:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100308.37/warc/CC-MAIN-20231201215122-20231202005122-00349.warc.gz","language_score":0.854918360710144,"token_count":203,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__226808432","lang":"en","text":"Thermal Camera For Smart Phone For Paranormal Research\nThermal Camera For Smart Phone\nThis amazing, yet pricey gadget let's you convert your iPhone or Android smartphone in to a fully functioning thermal imaging camera. The camera works regardless of light conditions, whether total darkness or broad daylight and can detect heat from nearly 2,000 feet away and as close as 8 inches.\nPowerful thermal imaging camera gives you the power to find heat signatures even in total darkness, find problems around the house, and explore your world in a whole enhanced way.\nFLIR ONE app is free to download from the App Store and features exclusive content, real-time tips and tricks, and easy sharing of thermal images and videos on social media.\nFLIR ONE allows you to see and measure temperature differences accurately and from a safe distance. Perfect for basic heating inspections, fault-finding and damp detection.\nExclusive MSX technology blends thermal and visible spectrum for more detail and enhanced resolution because two cameras are better than one.","domain":"optical_engineering"}
{"url":"https://www.visionsource-brunswickeye.com/eye-care-services/optical-services/","date":"2023-05-31T19:51:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647409.17/warc/CC-MAIN-20230531182033-20230531212033-00735.warc.gz","language_score":0.8933785557746887,"token_count":142,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__228375567","lang":"en","text":"Our Optical Service provides high-quality frames and lenses for lifestyle, occupational, and recreational needs. Frames for all ages, infants to adults, are available.\nOur services range from spectacles for general use, to specialty lenses for sports, hobbies, or occupational use.\nA wide range of scratch-resistant and anti-reflective coatings, lens designs, and tints are available.\nAs a courtesy, eyewear adjustments and cleaning are provided without an appointment. Also, for your convenience, our on-site eyewear production lab is able to fabricate prescriptions of all materials, therefore helping us to meet your time requirements for new or repaired frames and lenses. Express services are available.","domain":"optical_engineering"}
{"url":"https://www.photonicsresearchgroup.org/linear-nonlinear-spectroscopy","date":"2024-04-24T14:47:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819668.74/warc/CC-MAIN-20240424143432-20240424173432-00158.warc.gz","language_score":0.8964336514472961,"token_count":445,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__182246146","lang":"en","text":"LINEAR & NONLINEAR SPECTROSCOPY\nThe Fundamental Research of New Photonics Materials\nThe light-matter interaction is, in fact, one of the most relevant themes in physics due to the amount of information that can be obtained and interpreted by the material's response after this interaction. There are several types of optical phenomena, which can be linear or nonlinear. For example, when photons emitted by a low-intensity light source interact with a medium and are absorbed, we face an absorption process called linear absorption or simply 1PA - one-photon absorption. In addition, a photoluminescence process may follow if the medium is emissive. But when a high-intensity laser is used to cause a light-matter interaction, there is a chance of a nonlinear optical response be observed. There are several types of nonlinear optical phenomena, such as second-harmonic generation (SHG), two-photon absorption (2PA), three-photon absorption (3PA), to mention a few.\nNonlinear optical phenomena (NLO) can be experimentally and theoretically investigated with different ranges of energy excitation. We can combine both results (experimental and theoretically) to understand the existent materials better, aiming to develop novel ones with optimized optical responses.\nThe NLO effects can be determined experimentally with laser systems and appropriate optical apparatus. For example, the incoherent SHG in solution (first molecular hyperpolarizability) can be determined by the hyper-Rayleigh scattering (HRS) technique; the 2PA spectra can be recorded using the well-established Z-Scan technique. Fortunately, due to our ongoing collaborations, we have access to the mentioned NLO techniques. Moreover, we can estimate the first molecular hyperpolarizability and the 2PA spectra using QCC in a High-Performance Computing environment.\nIn this line of research, the main objective is to help chemists and material scientists to synthesize novel optical materials with optimal NLO effects.\nIf you are interested in exploring 2PA or the first molecular hyperpolarizability spectra of a particular molecular structure, contact us by clicking here!","domain":"optical_engineering"}
{"url":"http://smarttouch.co.nz/ballast.htm","date":"2017-11-18T14:06:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934804965.9/warc/CC-MAIN-20171118132741-20171118152741-00302.warc.gz","language_score":0.9226698875427246,"token_count":148,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__240211578","lang":"en","text":"Ballast is a device used with an electric discharge lamp to obtain the necessary circuit conditions (voltage, current and waveform) for starting and operating light sources. All fluorescent and high intensity discharge (HID) light sources require a ballast for proper operation.\nIt helps dim your fluorescent tube lights and save tube light energy as well as giving different mood lighting in the room for more comfortable lighting for the human eye. It can control 48 channels of Dali Ballast and work as a bridge between S-Bus and Dali. It can be used in any location that requires energy saving, intelligent control such as hotels, shopping malls, residential buildings, stadiums, airports, gymnasiums, intelligent villas and mansions.","domain":"optical_engineering"}
{"url":"https://international.brin.go.id/news/brin-remote-sensing-technology-to-monitor-mangrove-ecosystem/","date":"2022-06-27T04:42:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103328647.18/warc/CC-MAIN-20220627043200-20220627073200-00073.warc.gz","language_score":0.913691520690918,"token_count":773,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__96293601","lang":"en","text":"Jakarta – BRIN Public Relations. The total area of mangroves worldwide continues to decline. In some areas, the decline is attributable to exploitation, land clearing, and pollution of mangrove ecosystems.\nThe National Research and Innovation Agency (BRIN) through the Aeronautics and Space Research Organization has developed a mangrove monitoring model using optical remote sensing technology.\nHowever, Indonesia, which is located at the equator, with several large islands and thousands of small islands that are covered by mangroves, is often covered by clouds. This is the problem that often arises when detecting mangroves.\nRatih Dewanti, a researcher in the field of Remote Sensing Technology, said the Cloud-Free Mosaic (MBA) model is considered efficient in the processing of optical remote sensing data, which contributes to generate data and information to support mangrove monitoring.\nThis model when integrated with the development of the latest concept of Analysis Ready Data (ARD) will have more significant weight in the processing of optical remote sensing data for mangroves. The combination of the Mosaic Tile Based (MTB) algorithm and the ARD model is referred to MBA model.\n“The findings, in the form of MTB algorithm, can solve the problem of cloud coverage in optical remote sensing data, especially for coastal areas around the equator line which are often covered by clouds,” said Ratih in her academic oration for inauguration as Research Professor, at BRIN Building, Gatot Subroto, Jakarta, Thursday (10/10). 03).\nWhile the ARD concept provides efficiency to users of remote sensing data in the required pre-processing.\n“Efficient in this context means that it is faster and uses less resources to provide data, which can be used for mangrove monitoring compared to conventional approaches,” explains this mother of 2 children.\nIn more detail, Ratih explained the results of development of 5 models to provide remote sensing data for mangrove monitoring.\nModel-1 is the development of MBA for optical remote sensing data, model-2 for determining mangrove coverage, model-3 for detecting the presence, density, and zoning of mangroves, model-4 for monitoring the rate of damage to mangrove land, and Model-5 for providing remote sensing ARD.\nFrom the 5 model developments, continued Ratih, use of MBA for mangrove monitoring based on digital optical remote sensing data is considered more efficient than the conventional method. Conventional methods generally promote visual interpretation, scene-based interpretation, and expert justification.\n“This efficiency is obtained from experiences in processing optical remote sensing data for 10 scenes for mangrove monitoring. Using model-2, model-3, and model-4 takes about 7 days, compared to 1 day when processing the same data using model-1,” explained the researcher who is also an active member of the Asian Association of Remote Sensing.\nSome of these findings have been implemented in mangrove mapping carried out by the Ministry of Environment and Forestry, and reported in the National Forest Monitoring System (Simontana).\nIn addition, in the Web-GIS as collaboration between IPB and BRIN (LAPAN)-Ecometrica, with funding from the United Kingdom Space Agency (UKSA), the MBA model has been used for Landsat data.\nRatih hopes that the development of an efficient model in processing optical remote sensing data can further strengthen the implementation of evidence-based policy principles.\nFurthermore, the development of this model can support the implementation of one standard and one data as part of the One Map Policy, and in line with optimizing utilization of remote sensing data as mandated by the Law on Space (tnt).","domain":"optical_engineering"}
{"url":"http://www.singlemodefibercoupler.com/sale-9592977-simplex-fiber-optic-patch-cord-single-mode-2mm-with-10m-length-good-durability.html","date":"2021-05-14T13:22:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989526.42/warc/CC-MAIN-20210514121902-20210514151902-00151.warc.gz","language_score":0.6504987478256226,"token_count":421,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__182097960","lang":"en","text":"Payment & Shipping Terms:\n|Material:||Single Mode||Fiber Type:||Simplex|\n|Connector 1:||LC/APC||Connector 2:||LC/APC|\nsimplex patch cord,\noptical fiber patch cord\nSimplex LC/APC-LC/APC Single Mode Fiber Optic Patch Cord 2mm\nFiber optic patch cord ,Precise connector, Customized length, Excellent mechanical capability, insertion loss<0.2dB, Good durability and exchangeability, Compliant with TIA/EIA and IEC standard\nLC,SC,FC,ST,MPO, fiber optic patch cord\nOEM patch cords\nTelcordia GR-326-4 core compliant\nCE, Rohs, UL, REACH.\nHigh quality and fast delivery\nSmall trail order is avalable\nActive dvice termination\nLocal Area Networks(LANs)\nData Processing networks\nWide Area Networks(WANs)\nLow insertion loss and back reflection loss\nGood echangeability Good Durability\nHigh temperature stability\n|Operating wavelength(nm)||Multi-Mode||Single Mode|\n|Operating tempearture(℃)||-40 ~ +85|\n|Connector Type||Connector Type||Cable Die,||Fiber Type||Length|\nEX: OFC -S-SA-SA-09-1-0.5\nPacking & Shipment:\nPackaging : plastic bag & caron\nShipping: International Express: Fedex, DHL, UPS, TNT and EMS.If you have another preferred carrier, please notify us in advance.\nFedEx Overnight: It will take 1-3 business days (weekends and holidays excepted) for delivery.\nDHL: It will take 2-4 business days (weekends and holidays excepted) for delivery. For Spain, Italy, Brazil and some other countries, items will take longer time to arrive due to customs clearance period.\nContact Person: Penny","domain":"optical_engineering"}
{"url":"https://www.mountroyaldental.com/burlington-laser-dental-treatment/","date":"2024-02-23T04:35:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474360.86/warc/CC-MAIN-20240223021632-20240223051632-00402.warc.gz","language_score":0.9325577616691589,"token_count":728,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__206912635","lang":"en","text":"Lasers have various uses in the field of dentistry. They can be most effectively used for removing decay, whitening teeth, reshaping gums, and hardening bonding materials in fillings.\nDental lasers emit energy in the form of quick pulses of light at the area to be treated. Based on the type of tissue to be treated, various wavelengths of the lasers are used.\nDiode lasers have many different fascinating applications in laser dentistry. It is a revolutionary technology that enables dentists to treat patients with the most precision, least pain, and fast healing. Several cosmetic dentistry procedures can be performed using diode lasers, including tooth whitening.\nDiode laser technology works by focusing the energy at the site of treatment through a semiconductor embedded within a crystal. The energy is transmitted through a flexible optical fiber towards a handheld unit which the dentist uses during the treatment. The power of the laser can be precisely adjusted for performing a variety of procedures safely and comfortably. The diode lasers are flexible enough to be applied to many different procedures, such as:\nSoft-tissue surgery: The diode laser is commonly used for performing soft-tissue surgery, such as removing lesions and tumors from oral soft tissues within the mouth. The high-energy beam of the diode laser kills bacteria and sterilizes the areas during cavity treatment, root canals, and other similar procedures.\nPlaque removal: Diode laser can help dentists in cleaning the teeth. The powerful laser can effectively remove heavily calcified deposits from the teeth leaving them clean and free from cavity-causing plaque.\nTeeth whitening: The diode laser can activate the gel used in professional treatments for tooth whitening. An in-office treatment can whiten teeth by 10 shades, which is a remarkable improvement in comparison to over-the-counter whitening systems offered in stores.\nGum contouring: The diode laser can help in reshaping the gum lines of the patients.\nLaser surgical tools have unsurpassed precision, which helps dentists in minimizing or eliminating bleeding as well as post-treatment discomfort. The dentists can remove decayed tissue without affecting healthy tissue surrounding the treated gums. Also, dentists can ensure long-lasting fillings as they can effectively fill the cavities treated by the laser system in comparison to those treated with a drill.\nDental lasers have various advantages over traditional instruments:\nMinimized need for anesthesia – Unlike dental drills, lasers are precise and don’t create intense vibrations. A treatment with the laser usually does not require anesthesia during the process.\nMinimal bleeding – Laser treatment involves conservative incisions, with less bleeding and swelling. Moreover, lasers cauterize incisions by sealing them using energy which further reduces bleeding.\nPreservation of tTissue – A laser dental treatment is highly precise and involves minimal disruption of surrounding healthy tissue.\nRapid healing – A laser treatment involves very precise incisions, which are sealed immediately, thereby minimizing healing time. After a soft tissue procedure performed with the laser, there is no bleeding and patients do not need to have sutures.\nMultiple applications – Due to the versatile capabilities of laser treatments, some dentists use them for smile makeovers as well. Laser dentistry is an innovative technology that ensures beautiful results comfortably. The dentist can use a single laser for different types of treatments by making appropriate adjustments.\nEffective cosmetic treatments should ensure a foundation of healthy teeth and gums. Laser treatments make the dental procedures incredibly comfortable and precise, thereby ensuring long-term satisfaction.","domain":"optical_engineering"}
{"url":"https://hearingreview.com/hearing-products/hearing-aids/lantos-receives-over-4-1-m-funding-for-3d-imaging-technology-for-hearing","date":"2023-04-02T01:57:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950373.88/warc/CC-MAIN-20230402012805-20230402042805-00250.warc.gz","language_score":0.9398550391197205,"token_count":154,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__218328549","lang":"en","text":"Cambridge, Mass— Lantos Technologies Inc, a company developing 3D scanning technology for hearing health applications, has received $4.1 million in private funding, according to an SEC filing.\nUnder the leadership of Professor Douglas Hart of the Massachusetts Institute of Technology’s Mechanical Engineering Department, Lantos has been working to commercialize a 3D digital scanner capable of measuring ear canal shape and tissue compliance.\nIf successfully developed, the technology has the potential to eliminate uncertainties associated with manual ear canal fittings and improve the performance of custom-made hearing products, such as hearing aids, audio ear buds, and hearing conservation products.\nIn September 2010, Lantos received $1.6 million in funding.\nSOURCE: Lantos Technologies","domain":"optical_engineering"}
{"url":"https://sciencemint.com/scientists-developed-an-ultrafast-fiber-laser-that-produces-record-high-power/","date":"2021-02-25T01:40:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178350706.6/warc/CC-MAIN-20210225012257-20210225042257-00184.warc.gz","language_score":0.9130010008811951,"token_count":452,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__7024459","lang":"en","text":"Scientists have developed an ultrafast fiber laser that delivers an average power more than 10 times what is available from today’s high-power lasers. The technology is ready to enhance industrial-scale materials processing and paves the way for visionary applications.\nMichael Müller, a Ph.D. student of Prof. Jens Limpert from the Friedrich Schiller University’s Institute of Applied Physics and the Fraunhofer Institute of Institute for Applied Optics and Precision Engineering in Jena, Germany, will present the new laser at the all-virtual 2020 OSA Laser Congress to be held 12-16 October 2020. The presentation is scheduled for Tuesday, 13 October 2020 at 14:30 EDT.\nHigh power without the heat\nIn lasers, waste heat is produced during the process of light emission. Laser geometries with an enormous surface-to-volume ratio, for example, fibers, can dissipate this heat well indeed. Hence, the average power of around 1 kW is obtained from the present high-power lasers. Beyond this power, the heat load degrades the beam quality and represents a limit.\nTo circumvent this restriction, the research group around Müller and Limpert made another laser that externally combines the output of 12 laser amplifiers. They indicated that the laser can produce a 10.4-kilowatt average power without degradation of the beam quality. Thermographic imaging of the final beam uncovered marginal heating. In this way, power scaling to the 100-kilowatt level could be refined by adding even more amplifier channels.\nIn the future, high-power combined lasers not only will accelerate industrial processing but also enable formerly visionary applications such as laser-driven particle acceleration and space debris removal – said, Müller.\nThe investigation of novel applications at that power level as well as the transfer of the laser technology to commercial systems is ongoing within the frame of the Fraunhofer Cluster of Excellence Advanced Photon Sources (CAPS), which foremost involves the engineering of the laboratory setup into a rugged design. On the research side, the team in Jena now focuses on multicore fibers that offer the potential to deliver even superior performance in simpler and smaller systems.\nMore information: OSA Laser Congress","domain":"optical_engineering"}
{"url":"https://www.ethanolindustrydirectory.com/flir-system/","date":"2021-06-20T06:13:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487658814.62/warc/CC-MAIN-20210620054240-20210620084240-00203.warc.gz","language_score":0.908206045627594,"token_count":535,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__76148010","lang":"en","text":"FLIR systems introduces new ex-series thermal image cameras, which are now available. FLIR systems introduces new ex-series thermal image cameras, which are now available. The ex series are entry-level models with numerous functions. Thermal imaging cameras are ideal to replace, for example, a point-IR pyrometer. They are suitable especially for building inspections, to find insulation problems, to detect leaks in flat roofs or underfloor heating systems to investigate. The ex series is equally suitable for electrical and mechanical inspections.\nHere can be localized with the thermal imaging cameras such as electrical problems, control cabinets are checked, u.v.m be found engine problems. The FLIR ex-series distinguishes itself especially through its ease of use and their excellent value for money. You generated in no time with simple sighting and record JPEG thermal images, which contain all the necessary temperature data and stored internally or externally, sent and analyzed can be. The entry-level model in the ex series is the FLIR E4 with an image resolution of 80 x 60 pixels and thermal sensitivity of < 0.15 C. The thermal imaging camera FLIR E5 has a resolution of 120 x 90 pixels, FLIR E6 model has 160 x 120 pixels and is also equipped with the images-in-picture, as well as the color alarm feature.\nThe top model is the FLIR E8 with an image resolution of 320 x 240 pixels and thermal sensitivity of < 0.06 C. Due to the low weight of only 575 g, the infrared cameras are very handy and easy to find place in a belt pouch. All models measure temperatures up to + 250 C, and are equipped with the patented MSX process by FLIR. This provides thermal images with outstanding image quality in real time. The result stung sharp thermal images, faster orientation towards the goal and clear reports without clutter. Furthermore, you can more quickly locate abnormalities. In addition the infrared cameras FLIR E6 and FLIR E8 are the equipped multi-spectral image storage. This is a combined storage of MSX, heat, digital image and picture-in-picture. For thermal imaging cameras, FLIR tools software is available, which can be downloaded free of charge. It is suitable for simple updating of a camera and for the easy creation of inspection reports. So can, for example, images from the camera to a computer are imported, measuring tools in a thermal image created, moved and adjusted headers and footers logos in reports will be added to and, for example, filter when searching for specific images used. The FLIR tools + is optionally available, which has more features.","domain":"optical_engineering"}
{"url":"https://www.asianarachnology.com/budget-microscopy/","date":"2024-02-28T06:36:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474697.2/warc/CC-MAIN-20240228044414-20240228074414-00557.warc.gz","language_score":0.9104316234588623,"token_count":667,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__207387599","lang":"en","text":"With some DIY work, imaging spider genitalia can be done on a budget. The key components are listed below, with the respective estimated costs in Singapore dollars.\n- Camera that allows fitting of extension tubes (~S$1000)\nAlmost any camera body that allows interchangeable lenses, or more accurately the fitting of extension tubes, will work.\n- Microscope objective (~S$30 per objective)\nSurprisingly, cheap no-brand plan or semi-plan objectives bought online can have good results. Imaging spider genitalia typically requires 4x for large spiders to 40x for tiny spiders.\n- Adapter ring to fit the objective onto the extension tubes (~S$5)\nMost microscope objectives have RMS-mount screw threads. Some, e.g. Nikon objectives, use M25/C-mount screw threads. These adapter rings can easily be found online.\n- Extension tubes of sufficient length (~S$20)\nMost commonly found microscope objectives are made to cast an image 160 mm from the base of the objective (where the objective’s screw threads meet the shaft of the objective), so extension tubes are required to space the base of the objective that distance from the camera sensor. This distance does not need to be very accurate; slight deviations of a couple of cm in this length will simply result in small differences in the resultant magnification. Some microscope objectives cast an image an infinite distance away from the objective. These infinity objectives can be used just the same as the more common objectives.\n- Focus rail that allows fine adjustment (or operates using a worm gear, ~S$30)\nFine adjustment is crucial, the setup must allow focusing at small enough steps. Depth of field for microscope objectives can be around ten microns or smaller, meaning the focus rail must allow focusing at such small steps.\n- A means to fix the camera and focus rail such that it is unmovable (~S$50-200)\nA camera tripod, an old microscope stand, or any solid, steady stand or frame will work. The most convenient configuration will be to fix the camera such that it is pointing straight down. Slide-mounted specimens with cover slips can sometimes be mounted vertically such that the camera can be pointing horizontally.\n- Sufficiently bright light source to illuminate the subject (~S$30-400)\nShutter speed needs to be around 1/400 or faster in order not to have motion blur, and ISO needs to be around 200 in order not to have significant noise (these can vary depending on your particular camera and setup). High power flashlights, microscope lights, or camera flashes are all possibilities.\n- Image stacking software (varies)\nAt high magnification, it will be challenging to have sufficient depth of field such that everything is in focus in one shot. Stacking images will likely be a necessity.\n- Remote trigger for camera or tether software that can control the camera (~S$5 or included in software)\nAt high magnifications, even very small movements will significantly shake the camera or specimen, throwing things out of focus. It is therefore important not to touch the camera if possible. A remote trigger, or controlling the shutter through tether software are options for taking photos without touching the camera.\nCompilation and photos by James W B KOH.","domain":"optical_engineering"}
{"url":"https://www.engr.uky.edu/news/2021/04/guoqiang-yu-receives-college-engineering-excellence-research-award","date":"2023-11-28T10:49:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00250.warc.gz","language_score":0.9452285170555115,"token_count":289,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__194295422","lang":"en","text":"Guoqiang Yu, professor in the F. Joseph Halcomb III, M.D. Department of Biomedical Engineering, has received a 2021 College of Engineering Excellence in Research Award.\nGuoqiang Yu leads the Biomedical Optics Laboratory, where his group has invented several highly powerful functional imaging technologies, including a speckle contrast diffuse correlation tomography system for noncontact imaging of brains, burns, wounds and reconstructive tissues; a wearable fiber-free optical sensor for continuous cerebral monitoring in freely behaving humans and animals; and a time-resolved laser speckle contrast imaging system. He has been awarded one SBIR/STTR grant for the commercialization of fluorescence eye loupes to guide brain tumor removal. Moreover, this innovative wearable fluorescence imaging device was selected by The Brain Race in 2019, a global competition to advance innovation in fighting brain tumors. These new technologies and devices hold great promise for imaging numerous organs in preclinical and clinical settings. Over the past five years, Yu has secured approximately $6.3 million as PI. This significant level of funding from competitive sources demonstrates the broad appeal of his research program. His group publishes an average of six papers per year and has established a track record of publications in high-impact journals such as Annals of Neurology, Arthritis & Rheumatism, Clinical Cancer Research, NeuroImage and IEEE Transactions on Medical Imaging, among others.","domain":"optical_engineering"}
{"url":"http://nhhomeworkopdk.komedo.info/dye-sensitized-solar-cell-thesis.html","date":"2018-10-17T08:34:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511063.10/warc/CC-MAIN-20181017065354-20181017090854-00039.warc.gz","language_score":0.9047740697860718,"token_count":802,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__75651087","lang":"en","text":"Solar cells phd thesis 2013 solar cells phd thesis 2013 as one thesis on dye sensitized solar cell of the top ten science breakthroughs of thesis on dye sensitized. Recommended citation wang, dafu, food dyes based dye-sensitized solar cells, campus access master's thesis, michigan technological university, 2017. Dye- and quantum dot-sensitized solar cells based on nanostructured wide-bandgap semiconductors via an integrated experimental and modeling study xukai xin. Dye-sensitized solar cells with 31 dye-sensitized solar cell construction with liquid electrolyte master thesis - mcmaster.\nPlagiarism free research papers dye sensitized solar cell phd thesis pay for matlab homework dissertation grants political science. America american criticism english essay library literary literature writer writer phd thesis on dye sensitized solar cells dissertation game theory online essay. Project code: mqpbd4jpd1 1 characterization of the dye-sensitized solar cell a major qualifying project report submitted to the faculty of worcester polytechnic institute.\nThe performance of dye sensitized solar cells (dssc) was investigated as a function of electrolyte composition and dye sensitizer electrolytes consisting of. Economics term paper phd thesis on dye sensitized solar cells how to write dissertation proposals 2014 essay on indian health service. Dye sensitized solar cells: which could enable production of low-cost solar cells in the future this thesis begins with a the dye-sensitized solar cell. Her thesis work was focused on dye sensitized solar cells based effect of its addition on the photovoltaic properties of zno-based dye-sensitized solar cells. Schönhofer, ewald dye sensitized solar cells : from liquid electrolytes to solid state hole transport materials 2015, phd thesis, university of basel.\nDye sensitized solar cell phd thesis dye sensitized solar cell phd thesis college admission essay ucf dye sensitized solar cells phd thesis help with college. Phd thesis on dye sensitized solar cells phd thesis on dye sensitized solar cells dye sensitized solar cell phd thesis structure and dye sensitized solar. This thesis studies the application of copper(i) complexes as the sensitizing component of dye sensitized solar cells (dscs) ruthenium(ii. Pro-aromatic dye components for dye-sensitized solar cells: thienothiophene and indolizine by george andrew puneky a thesis submitted to the faculty of the university.\n1 introduction dye sensitized solar cell (dssc) based on nanocrystalline tio 2 cell on fluorine doped tin oxide (fto) coated glasses was invented by chen et al and. Essay commentary help dye sensitized solar cell phd thesis phd thesis present or past tense ddig dissertation funding. Zno & zn2sno4 dye sensitized solar cells a senior honors thesis presented in partial fulfillment of the requirements for graduation with research distinction in the. Katrine flarup jensen performance comparison of a dye-sensitized and a silicon solar cell under idealized and outdoor conditions master’s thesis, september 2008.\nDissertation consulting service dye sensitized solar cells phd thesis dissertation le corps transform need help writing definition essay. A study on the optimization of dye-sensitized solar cells a study on the optimization of dye-sensitized solar cells by md imran khan a thesis submitted in partial. Commercialization potential of dye-sensitized mesoscopic and electronic copies of this thesis document in whole or in dye-sensitized solar cells. Join freeexecutive summary writing dye sensitized solar cell phd thesis dissertation philosophie these antithese synthese essay helpingsolar cell phd thesis $divdiv.","domain":"optical_engineering"}
{"url":"https://www.thewaite.org/new-light-on-determining-nitrogen-content/","date":"2024-03-04T09:16:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476432.11/warc/CC-MAIN-20240304065639-20240304095639-00389.warc.gz","language_score":0.9255048632621765,"token_count":405,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__61789314","lang":"en","text":"A new study by research fellow Dr Huajian Liu at APPF’s The Plant Accelerator, at the Waite campus, has unearthed the optimal wavelength ranges, band centres and bandwidths for Hyperspectral sensors to determine the nitrogen content in Wheat.\nHealthy plants generally have 3-4% of their total nitrogen housed in the above ground tissue. Nitrogen is used for a variety of essential procedures to maintain plant health and increase yield. Present in both chlorophyll and a major component in amino acids, nitrogen management and diagnosis of of plant nitrogen status are essential to maximising yields and are best based on real-time monitoring of biomass and plant nitrogen levels. Traditional methods of chemical nitrogen analysis are generally destructive, time consuming and expensive in a laboratory approach.\nThe fast-developing area of hyperspectral imaging integrates imaging and spectroscopy technologies and provides both visual representations of targets as well as the corresponding spectral information. The integration of spatial and spectral information has enabled the merging of computer vision technologies and spectroscopy, providing enriched datasets for the non-destructive measurement of plants.\nIn contrast to spectrometers, hyperspectral cameras usually have limited spectral ranges and wider bandwidths. In proximal sensing, hyperspectral cameras have been used to estimate nitrogen in wheat and pepper. In aerial remote sensing, hyperspectral systems have been successfully used to measure the nitrogen content of wheat, mangrove and maize.\nDr Liu’s study has demonstrated that hyperspectral imaging systems with satisfactory system setups can be used to conduct proximal sensing of nitrogen content in wheat accurately. The proposed approach could reduce the need for chemical analysis of leaf tissue and lead to high-throughput estimation of nitrogen in wheat.\nPlant (a) (left) was treated with 50 mg/kg of N whereas plant (b) was treated with 200 mg/kg N. The red colour indicates a high concentration of Nitrogen and blue inidcates a low concentration.","domain":"optical_engineering"}
{"url":"https://www.customengravingcompany.com/mdx-15-mdx-20-portable-milling-machine-and-scanner/","date":"2019-06-20T08:11:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999163.73/warc/CC-MAIN-20190620065141-20190620091141-00016.warc.gz","language_score":0.9174588918685913,"token_count":410,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__87132965","lang":"en","text":"The MDX-20 Milling Machine & Scanner uses (RAPS) technology to eliminate the drawbacks of contact-based 3D scanners.\nThe MDX-15/20 scans a wide range of objects including soft objects like clay and fruit that conventional contact scanners find very difficult. It can even scan glass, impossible using optical scanners because the light beams passes through the object without detecting it.\nCapable of scanning for reverse engineering and milling to create prototypes back to back, at production speeds. With an RS-232C cable, the MDX-15/20 plugs into a computer as easily as any desktop printer. Within minutes, even beginners can be scanning and milling.\nThe MDX-20 Portable Milling Machine And Scanner is ideal for a variety of product design tasks, including prototype modeling, rapid prototyping, jewelry & model making, and small lot production.\nThe MDX-15 and the MDX-20 are able to mill just as quickly and efficiently as any other milling machine on the market, but can also scan a wide range of objects including soft objects like clay and fruit that conventional contact-based scanners find very difficult. It can even scan glass, which would be impractical with contact based scanners and impossible using optical scanners because the light beams pass through the object without detecting it.\nRoland Active Piezo Sensor (RAPS) technology eliminates the drawbacks of conventional contact-type 3D scanners. It scans data with hair-splitting precision, picking up even the most minute shape variations. Minimum scanning pitches for the MDX-15/20: X/Y-axis direction 0.002 to 0.197 inches settable in steps of 0.002 inches, Z-axis direction 0.001 inches.\nSelect different spindle tips for state-of-the-art CNC milling, or precise 3D scanning. By testing and modifying your virtual 3D designs through scanning and final milling, this portable millig machine will save you time and money.","domain":"optical_engineering"}
{"url":"https://diobeth.org/.tmb/forum/hwb0oig.php?e0ffba=image-formation-by-plane-mirror-class-10","date":"2021-03-08T03:00:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178381803.98/warc/CC-MAIN-20210308021603-20210308051603-00285.warc.gz","language_score":0.9222267866134644,"token_count":1369,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__201079423","lang":"en","text":"The image formed by a plane mirror is at the same distance behind the mirror as the object is in front of the mirror i.e. the left side of the object becomes the right side of the image and vice-versa. Performance & security by Cloudflare, Please complete the security check to access. In conclusion, plane mirrors produce images with a number of distinguishable characteristics. General rules for image formation … We have to see the rays coming from the object to see it. 5. Class 8 Physics Light: Image formation in a plane mirror: Image formation in a plane mirror. They are drawn in order for anyone to view a point on the image of an object. It is the same side up as the object. These are of the type convex and concave. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. To see any image in the mirror a person should be in the line of sight of the mirror, as when the person is in the line of sight of the mirror then the reflected ray reaches that person’s eye through which anyone can see the image of the object if they are in the line of sight of the mirror, this is because light has the property of moving in a straight line. Plane Mirrors and Image Formation in Plane Mirrors If the reflecting surface of the mirror is flat then we call this type of mirror as plane mirrors. Image distance is always equal to the object distance in a plane mirror. The image formed by a plane mirror is at the same distance behind the mirror as the object is in front of the mirror i.e. Find the location and characterize the orientation of an image created by a plane mirror. • Images in a plane mirror are the same size as the object, are located behind the mirror, and are oriented in the same direction as the object (i.e., “upright”).. To understand how this happens, consider .Two rays emerge from point P, strike the mirror, and reflect into the observer’s eye. incident rays and reflected rays. You only have to look as far as the nearest bathroom to find an example of an image formed by a mirror. Another way to prevent getting this page in the future is to use Privacy Pass. 1. You may need to download version 2.0 now from the Chrome Web Store. A-1, Acharya Nikatan, Mayur Vihar, Phase-1, Central Market, New Delhi-110091. To view an object in any type of mirror, a person must sight along a line at the image of the object. Image Formation for Plane Mirrors. The object is placed at A. The image formed in a plane mirror is laterally inverted i.e. The image formed in a plane mirror is laterally inverted i.e. The image in a plane mirror is of the same size as the object. These ray diagrams depend on the position of the object. A virtual image is a copy of an object formed at the location from which the light rays appear to come. Ray diagrams are used to depict the image formation by tracing the path of light rays i.e. Describe how an image is formed by a plane mirror. Your IP: 220.127.116.11 Image distance is always equal to the object distance in a plane mirror. Given picture below shows how we can find the image of a point in plane mirrors. You only have to look as far as the nearest bathroom to find an example of an image formed by a mirror. 5. 4. Distinguish between real and virtual images. all rights reserved. Following are the important characteristics of image formed by plane mirrors. Copyright © 2020 Entrancei. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. 2. Plane mirrors produce images that have a magnification of 1. Note: A clear still surface of water behaves like a plane mirror. Such an image cannot be taken on a screen. This explains why we see reflection of sceneries in a river. Image Formation on Plane Mirrors. 3. Cloudflare Ray ID: 5f1a9e8a6c8674a3 If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. For example, a dentist uses a curved mirror to examine the teeth closely, large curved mirrors are used in telescope at observatories. the left side of the object becomes the right side of the image and vice-versa. The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A mirror whose reflecting surface is a part of a hollow sphere is known as spherical mirror. Some Important Terms Used In The Reflection Of Light, Some Important Terms Related To Spherical Mirrors, Principal Focus And Focal Length Of A Convex Lens, Principal Focus And Focal Length Of A Concave Lens, Sign Convection For Refraction By Spherical Lenses, Important Questions CBSE Class 10 Science. • The image formed in a plane mirror is always erect. Images formed by plane mirrors are virtual, upright, left-right reversed, the same distance from the mirror as … Light always has regular reflection on plane mirrors. All persons capable of seeing the image must sight along a line of sight directed towards the precise image location. The image formed in a plane mirror is always virtual.\nTorchbearer Utk 2020, Use Of Mathematics In Computer Science, Acetone Mass Spectrum, Bayside Restaurant Westport, Ma Menu, Jheel Ke Us Paar Movie Online, Cream Cheese Coffee Cake Muffins, Nausea After Eating Early Pregnancy, Copper Vs Stainless Steel Cookware, Beef And Shrimp Gumbo Recipe, Why Milk Tea Is Bad For You, Mc Office Furniture, Present Continuous Tense Of Hear, Cheap Modern Furniture, Lord Prepare Me To Be A Sanctuary Lyrics, Sell Used Office Furniture Nj, Where Can I Buy Oscar Mayer Bacon, Best Prefab Cabins, Magazine Authorities For Short Crossword Clue, Nathan's Famous Near Me, Ravnica: City Of Guilds Booster Box, Chocolate Ricotta Cheesecake, Bugs That Look Like Flax Seeds, Typical Return Of Investing In A Business, Coefficient Of Air Viscosity, Teflon Cooking Mat, Raven Vs Spectre, Cleric Meaning In Urdu, Eating Clove Is Good Or Bad, Meat Paella Barcelona Recipe,","domain":"optical_engineering"}
{"url":"http://titusgrdny.blogzet.com/what-does-vision-correction-allentown-pa-mean-3481062","date":"2018-07-22T16:09:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593378.85/warc/CC-MAIN-20180722155052-20180722175052-00565.warc.gz","language_score":0.9398073554039001,"token_count":767,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__192151027","lang":"en","text":"What Does vision correction Allentown PA Mean?\nEven so, cataract surgery can assist restore your vision, very long before you decide to knowledge loss of vision considerable adequate to interfere along with your every day actions.\nLASIK is the commonest laser eye surgery. LASIK commences Along with the development of a thin flap while in the cornea. Your surgeon utilizes a blade or possibly a laser to help make this flap. The laser is taken into account far more desirable by some Medical professionals because of its precision, like less visually important troubles ; on the other hand, all-laser LASIK expenses somewhat a lot more than LASIK that employs a blade.\nYou is probably not acquainted with the technological names of increased purchase aberrations, which include coma, spherical aberration, trefoil and\nTo be an ophthalmologist, students ought to complete undergraduate coursework, comprehensive professional medical school, and be involved in a three-yr residency software. As soon as these necessities have been fulfilled, ophthalmologists will have to sit for and pass the board assessment to receive their license to follow.\nSome clients want PRK as they don’t need a corneal flap, and many clients are superior candidates for PRK eye surgery than for LASIK (For illustration, those with slim corneas). As soon as the epithelium is eradicated, a laser is utilized to reshape the cornea. The laser is identical (i.e., excimer) as being the just one Employed in LASIK.\nIt has built People with Energetic lifestyles happy all over again. For Speak to lens wearers, the hassles connected with contacts could be a thing with the previous! LASIK is a quick and comparatively pain-free vision correction technique with an outstanding reputation of good results.\nConsequently, when light passes through the cornea and lens, it is concentrated in front of the retina. This will make distant photos seem blurred.\nAction two: The removing of a little number of tissue Together with the excimer laser beneath the corneal flap. The flap is Carefully folded again and the excimer laser reshapes the internal corneal tissue to right the refractive mistake.\nThe corrections are created applying eyeglasses or Call lenses, or amongst several surgical treatments. Just which strategy your medical professional chooses for these corrections relies with your certain visual need.\nLASIK could be the most frequently performed elective surgery in North America. This very helpful outpatient technique is commonly called refractive surgery or laser vision correction.\nThis brought about the main surgical application of a laser on human tissue. Eye surgeons (aka ophthalmologists) had been amid the 1st to approached researchers to find out how they might use this new technological know-how in laser eye surgical procedures.\nA corneal flap is created with possibly a blade or even a laser. The surgeon gently lifts the area in the cornea aside, enabling the excimer laser to reshape the curvature with the cornea.\nIf medical and laser therapy usually are not adequate in managing the glaucoma, surgery might be performed. The most typical type of glaucoma surgery may be the Trabeculectomy. With this procedure, a little spot on the drainage method, the trabecular meshwork is removed.\nThis system puts the incision In the reduce eyelid in lieu of outdoors. Clients who've dim circles below their eyes will from time to time Possess a deficiency of Extra fat in these locations. Injectables may be used to assist fill these smooth-tissue deficiencies and click here can increase the appearance of these circles.","domain":"optical_engineering"}
{"url":"https://help.eztix.com/support/solutions/articles/22000216475-why-is-the-laser-scanning-not-working-","date":"2019-10-18T05:52:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986677964.40/warc/CC-MAIN-20191018055014-20191018082514-00314.warc.gz","language_score":0.906150758266449,"token_count":358,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__48031250","lang":"en","text":"You have an EzTix Scanner with a laser scanner case that is not lighting up with the red laser when you are logged into the app, in the correct event and pressing the thumb button on the right hand side of the scanner.\n- As outlined in the solution, Troubleshooting with the EzTix Scanner under the section, Laser Scanner case and iPhone not charging? / Laser Scanner Not Scanning, the iPhone and the laser scanner case have become unpaired. To re-pair the two devices press the clear button on the bottom of the laser case (it glows green when pressed/charging) and the scanning button on the right side of the device simultaneously. You will hear a beep to indicate that the devices have been paired. (This can only be done if the iPhone has an independent charge and the laser case has an independent charge.\n- If the iPhone has a charge but the laser scanner is dead (the clear button on the bottom of the laser case is not glowing green when pressed), you will need to charge the scanner to then re-pair.\n- Should trying to pair the devices not resolve the laser scanning issue, we advise to remove the outer case and the laser scanner case, and slide the iPhone out of the laser scanner device and then reassemble and attempt to pair. The iPhone is a snug fit and a good amount of pressure needs to be used to push down and slide up at the same time to get it out of the laser scanner case.\n- Each scanner is equipped with back-up Camera Scan that can be used in the event that you cannot get the laser scanner to work. To review how to use the camera scan feature, please review the EzTix Scanner Guide Step 3 a).","domain":"optical_engineering"}
{"url":"http://www.lab-paris.com/?p=970","date":"2022-01-21T21:14:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303709.2/warc/CC-MAIN-20220121192415-20220121222415-00719.warc.gz","language_score":0.9304489493370056,"token_count":151,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__33892774","lang":"en","text":"From windows to tableware to fiber optics, oxide glasses are everywhere you look.\nOxide glasses (typically silica) are used frequently in modern day technologies because they have numerous desirable properties, including high transparency and low thermal conductivity. Despite their ubiquity, however, oxide glasses have one conspicuous shortcoming—they are brittle.\nThis latest study’s researchers come from Aalborg University in Denmark, Technical University of Denmark, and University of California, Los Angeles. The oxide glass they created, caesium aluminoborate, has shown fairly decent crack resistance in previous work. What pushed their glass to strikingly high crack resistance levels in the new study was a counterintuitive trick—the researchers aged the glass in a humid atmosphere.","domain":"optical_engineering"}
{"url":"https://shebamicrosystems.ca/ai-powered-surveillance-sheba-microsystems-mems-technology-for-the-highest-security-sites-in-the-world/","date":"2023-12-09T11:08:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100909.82/warc/CC-MAIN-20231209103523-20231209133523-00853.warc.gz","language_score":0.8537415862083435,"token_count":437,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__241111087","lang":"en","text":"Sheba Microsystems’ MEMS actuator technology revolutionizes security camera systems by delivering superior image quality and robustness. This is especially important for the highest security-protected sites in the world which have high-tech security teams and AI-powered surveillance applications at their disposal.\nAI-Powered Security Cameras Require:\nCrispest Surveillance Footage for AI Analysis: In high-security zones such as banks, airports, and government buildings, image clarity is non-negotiable for AI algorithms. It’s a matter of split seconds – faster than the human eye can detect. Sheba Microsystems’ technologies enable razor-sharp images and video footage, powering AI systems to more accurately identify individuals and potential security threats – when split seconds matter to safety and security.\n24/7 AI-Based Monitoring: For round-the-clock AI-driven surveillance in all weather conditions, Sheba Microsystems’ MEMS actuators ensure security cameras remain dependable. They can withstand extreme temperatures and weather fluctuations, ensuring uninterrupted data collection and analysis by AI algorithms.\nFacial Recognition Accuracy: In applications like access control or criminal identification, facial recognition technology relies on high-quality images for AI processing. Sheba Microsystems’ MEMS actuator technologies enable security cameras to help capture clear and stable facial images, significantly improving the accuracy of AI-driven identification systems.\nEnhanced AI-Powered Traffic Management: In traffic surveillance, clarity and reliability are essential for AI algorithms to accurately process data. Sheba Microsystems’ MEMS actuator technologies enable cameras to excel in capturing license plate numbers and monitoring traffic flow, contributing to improved road safety.\nOptimized AI for Critical Infrastructure Protection and Remote Monitoring of Critical Assets: Protecting vital infrastructure and critical assets requires cameras that can endure even the harshest environments, and only Sheba Microsystems’ MEMS actuator technology ensures this happens.\nTo learn more about how Sheba Microsystems’ robust MEMS actuators supercharge AI-driven surveillance cameras, visit www.shebamicrosystems.com.","domain":"optical_engineering"}
{"url":"http://www.ironhide.ca/lidar","date":"2018-01-21T08:32:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084890394.46/warc/CC-MAIN-20180121080507-20180121100507-00067.warc.gz","language_score":0.904079258441925,"token_count":289,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__114409495","lang":"en","text":"Ironhide is a world leader on the analysis and reporting of point cloud data collected during LiDAR scans done on tanks and other vessels. Asset owners and inspectors can save significant time and money performing asset scans with commercially available LiDAR scanners and sending the point cloud data to Ironhide for analysis and reporting.\nLiDAR (Light Detection and Ranging) is a range finding laser (or laser scanner). The technology is based on the transmission and reception of pulsed lights. LiDAR inspection is a complex and innovative method of inspection.\nLiDAR inspection equipment\n- Aerial LiDAR\n- Terrestrial (ground-based) LiDAR\nIronhide LiDAR inspection reports are:\n- Faster (report turnaround in as little as 1-2 business days)\n- More efficient (computer analyzed for accuracy and API 653 code tolerances)\n- More cost-effective (up to 50% less expensive than traditional manual analysis)\n- More accurate (up to 0.5 mm accuracy)\nIronhide Inspection Inc. has changed the landscape of LiDAR Inspection analysis by creating innovative software that shows the LiDAR data, like never before. Ironhide Analysis software allows you to immediately visualize the tank data as compared to API 653 code tolerances.\nIronhide Analysis Software provides\n- 3D imaging\n- Client Empowerment\n- Worldwide Online Accessibility\n- Engineering ready","domain":"optical_engineering"}
{"url":"https://www.zontaronddereest.nl/powder-grinding-equipment/17964/optical.html","date":"2021-11-27T06:15:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358118.13/warc/CC-MAIN-20211127043716-20211127073716-00462.warc.gz","language_score":0.8797683119773865,"token_count":906,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__87507287","lang":"en","text":"China Square Bar Grinding Forming Into Cylindrical-Shape Machine for Optical Glass, Find details about China Square Bar Forming Grinding Machine, Gem Square Bar Grinding Forming Machine from Square Bar Grinding Forming Into Cylindrical-Shape Machine for Optical Glass - Guangzhou Minder-Hightech .Oct 12, 2020 Precision optical systems, such as lithographic projection lens or cameras for satellites, typically composed of glass or ceramics optical components. In the manufacturing processes of glass and ceramics components, grinding is a key technique for curvature generation (CG) of optical surface. However, dimension errors and sub-surface damage (SSD) of components occur during the CG.\nFor grinding and polishing spherical plane surface of optical glass, quartz glass, crystal, electrical elements and other brittle materials. Features 1.Each.\nHigh-precision rotary surface grinding machine. A vertical rotary surface grinding machine for ultra-precision grinding of fragile materials such as optical glass, ceramics and ferrite, as well as the parts of various materials, using the unique mechanism of the table fixed type.\n5-Axis Lens Grinding Machine 10-500 mm Optics OptiPro. SXL 500 Overview. The SXL 500 is a 5-Axis CNC bridge style lens grinding machine.The unique axes configuration provides an accurate and versatile platform for grinding brittle materials such as glass, ceramics and hardened steels up to.\nDouble-sided grinding and polishing, also known as double-sided lapping and polishing is performed with particles suspended in a liquid vehicle to abrade parts equally from both surfaces. The process produces a relatively stress-free environment that induces minimal thermal distortion making it compatible with most optical materials.\nProduct Details. SG03V2.1 Quartz Tube Rod Shaping and Grinding Machine is specialized in the plane grinding and shaping process of quartz tube rods. It is suitable for the shaping and polishing process of various optical fiber preforms. According to different process requirements, it can carry out special shapes such as triangle, quadrilateral.\nLens Polishing Grinding Machine Lens Hand Edge Grinding and auto lens polisher machine. Ready to Ship. $115.00-$130.00 Unit. 1 Unit (Min. Order) $75.23 Unit (Shipping) CN Shenzhen Holya Vision Optical Industrial . 2 YRS. 4.7 (15) . satisfied company .\nMay 27, 2020 Diderot’s encyclopedia, published in France from 1751, includes illustrations of various devices and tools used to make lenses for a variety of optical instruments, including spectacles. The grinding machine has a solid wooden frame similar in principle to that of a potter’s wheel. A large flywheel is driven by a hand-operated crank, with a.\nFeb 08, 2016 S. K. ENTERPRISE, Established in 1997 at Ahmedabad in Gujarat, is leading Exporter, Manufacturer, Supplier of Grinding Milling Machinery in India. S. K. ENTERPRISE is one of Trade India's verified and trusted sellers of listed products. With their extensive experience of supplying and trading Hand Edgar And Optical Glass Grinding Machine, S. K. ENTERPRISE has made a reputed.\n395MF10 optical profile grinding machine. Stock set, little worked in excellent condition, 1988-1989 y.v. Location - the Republic of Bashkortostan Technical specifications Model 395mf10 machine s are designed for grinding complex profile s, templates, pun.\nUs9248541b2 Grinding Machine For Optical Glass And. B24b914 machines or devices designed for grinding edges or bevels on work or for removing burrs accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of nonmetallic inorganic material eg stone ceramics porcelain of glass of optical work eg lenses prisms.\nFor gears for crankshafts glass. metal sheet grinding machine. Based on the principle of optical profile grinding, the machine can measure both the workpiece Compare this product Remove from comparison tool. See the other products Amada Machine Tools. optical grinding machine SLG 301.\nIf you are interested in our company and our products, you can click to consult, we will provide you with value-for-money servicesFree Consultation","domain":"optical_engineering"}
{"url":"https://www.takflyfiber.com/sale-40468085-1-to-4-low-pdl-fiber-optic-plc-splitter-sc-upc-apc-connector-type.html","date":"2024-02-22T10:10:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00134.warc.gz","language_score":0.8854622840881348,"token_count":1375,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__99575379","lang":"en","text":"|1260 ~ 1650nm\n1x4 fiber optic plc splitter,\nlow pdl fiber optic plc splitter,\nlow pdl 1x4 fiber optic splitter\nThe optical splitter can be divided into a molten taper and a flat waveguide according to the principle. The two types of species have similar separation principles, they change the fade field between fibers to couple each other (coupling degree, coupling length) and change the radius of fiber to achieve different sizes of branching, and vice versa can also combine multiple optical signals into one signal called a synthesizer.\nMolten tapered products are two or more fibers for side fusion, while flat waveguide is a micro-optical component type product, using photolithography technology, in the medium or semiconductor substrate to form a light waveguide, to achieve branch distribution function. Meanwhile, melt-cone fiber coupler has become the mainstream manufacturing technology in the market because of its simple production method, cheap price, and easy connection with external fiber optic, and it can withstand the advantages of mechanical vibration and temperature change.\nBroadband operation wavelength is one of the key features of an optical switch. Its operation wavelength ranges from a certain value to a different one with the same bandwidth. It also provides low insertion loss, low PDL (Polarization Dependent Loss), compact design and good channel-to-channel uniformity. Furthermore, its reliability and stability is quite high which helps in its durability.\nUndoubtedly, an optical switch that supports broadband operation wavelength is an excellent choice for integrating and creating optical networks. It reduces the time and cost for installation as well as improving the overall performance of the network.\nHaving such a device in an optical network is very important as it provides connectivity to the other nodes in the network. Therefore, choosing an optical switch with broadband operation wavelength increases the efficiency of your network.\n|ITU-T G657A1 , G657A2 and G.652D\n|Operating Wavelength (nm)\n|Insertion Loss (dB)\n|Loss Uniformity (dB)\n|Polarization Dependent Loss (dB)\n|Return Loss (dB)\nThe telecommunication sector is an important and highly developed field today. This sector has seen vast improvements in the last few decades, leading to many interesting products that can help both businesses and individuals to connect with one another.\nA PON (Passive Optical Network) system is a type of network composed of optical splitters and passive components, used for connecting parts of a telecommunications system. It is a widely used technology all over the world for both residential and enterprise applications.\nFTTH (Fiber to the Home) provides broadband access to individuals and requires fiber-optic cable to be installed directly to each home. It can provide much higher download and upload speeds as compared to CATV (Community Antenna Television) or broadband over telephone lines. FTTH can be used to support real-time applications like streaming video, internet calling, and online gaming.\nCable television (CATV) systems are also a popular technology due to its ability to provide good quality video transmission for the viewers. It uses coaxial cable to transmit signals from a central provider to the modem in the viewers’ house.\nVideo transmission is a key element of the telecommunications sector and is used to transmit video signals over long distances. Signal transmission technologies like DSL (Digital Subscriber Line) or cable networks are used to achieve this.\nBrand Name: Takfly/OEM\nModel Number: PLC Splitter\nPlace of Origin: Shenzhen, China\nFiber Type: G657A1\nProduct Name: Fiber Optic PLC Splitter\nInsertion Loss: ≤6.8dB\nTakfly/OEM Fiber Optic PLC Splitter is a passive optical splitter, also known as optical fiber splitter, which is designed to distribute optical signals from Central Office (CO) to multiple premises in FTTx networks. It has a high directivity up to ≥55dB and low insertion loss of ≤6.8dB with low PDL of ≤0.4dB. It is manufactured with G657A1 fiber type and is suitable for both indoor and outdoor applications.\nSupport and Services:\nFiber Optic PLC Splitter Tech Support & Services\nWe provide comprehensive technical support and services for our Fiber Optic PLC Splitter products. We offer a variety of support options including:\n- Technical Support: Our technical support team is available 24/7 to answer any questions you may have. We can assist with installation, troubleshooting, and general inquiries.\n- Onsite Service: We can send out technicians to your site to perform maintenance and repair services on your Fiber Optic PLC Splitter products.\n- Software Updates: We can provide software updates for your Fiber Optic PLC Splitter products to ensure they are running the latest version.\n- Warranty: We offer a warranty on all of our Fiber Optic PLC Splitter products.\nFor more information on our Fiber Optic PLC Splitter tech support and services, please contact us.\nPacking and Shipping:\nFiber Optic PLC Splitter Packaging and Shipping:\nThe PLC Splitter is packaged and shipped in a corrugated cardboard box. The box is secured with bubble wrap and other appropriate cushioning material to protect the product from damage during transportation.\nThe box is also labeled with the product name, quantity, and other relevant information. It is also labeled with the appropriate shipping service level and any special instructions, such as time sensitive delivery.\n- Q1: What is the brand of the Fiber Optic PLC Splitter?\n- A1: The brand of the Fiber Optic PLC Splitter is Takfly/OEM.\n- Q2: What is the model number of the Fiber Optic PLC Splitter?\n- A2: The model number of the Fiber Optic PLC Splitter is PLC Splitter.\n- Q3: Where is the Fiber Optic PLC Splitter made?\n- A3: The Fiber Optic PLC Splitter is made in Shenzhen, China.\n- Q4: What type of fiber is the Fiber Optic PLC Splitter compatible with?\n- A4: The Fiber Optic PLC Splitter is compatible with single-mode or multi-mode fibers.\n- Q5: What type of connector does the Fiber Optic PLC Splitter use?\n- A5: The Fiber Optic PLC Splitter uses SC, FC, ST, or LC type connectors.","domain":"optical_engineering"}
{"url":"https://www.mbj-services.com/en/about-mbj/about-us-1","date":"2021-09-26T22:40:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057973.90/warc/CC-MAIN-20210926205414-20210926235414-00339.warc.gz","language_score":0.9353857636451721,"token_count":130,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__203574705","lang":"en","text":"MBJ Solutions specializes in the development and sale of test systems for the photovoltaic industry. MBJ Solutions offers electroluminescence test systems and LED sun simulators for solar module production. The company was founded in 2009 and has sold more than 450 inspection systems since 2010.\nMBJ Imaging GmbH, founded in 2013, is a subsidiary of MBJ Solutions GmbH. The company specializes in the development, manufacture and sale of innovative LED lighting and LED controllers for the automation industry. MBJ Imaging has set itself the goal of offering reliable, industry-standard and also inexpensive standard lighting based on the latest LED technologies.","domain":"optical_engineering"}
{"url":"https://lightingstores.com.sa/en/product/from-1-to-20-meter-neon-flex-12w-m-1-driver-250-watt-1-connector?category=led-flexible-neon-flex-linear-light","date":"2023-01-30T01:28:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499790.41/warc/CC-MAIN-20230130003215-20230130033215-00758.warc.gz","language_score":0.6654648184776306,"token_count":291,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__198221963","lang":"en","text":"The product is sold in linear meters.\nThe product contains an adapter and connector\nPlease specify the amount of meters of tape, knowing that every 19 meters, a transformer and conductor will be added\nTo Control the color temperature must add the Dimmer For LED Strip Light HV You can select and buy one of the Dimmer For LED Strip Light listed below.\n102.35 SARInc. Vat\nNeon Flex 10W/m 1 Driver 230Watt 1 Connector\nDriver 230W for LED Flexible Linear Light HV\nLED Flexible Neon Flex Linear Light (Connector)\nBody Color White\nCompatible With Dimmer For LED Strip Light HV\nDimmer With Dimmer For LED Strip Light HV( Yes) , Without Dimmer For LED Strip Light HV (No)\nColor Temperature 1800K , 2700K , 3500K , 4000K , 5000K\nLumen 1800K(330) , 2700K(450) , 3500K(470) , 4000K(480) , 5000k (490)\nEnable to process your request. please try again","domain":"optical_engineering"}
{"url":"http://www.brainfunction.edu.au/about/our-team/arthur-lowery/","date":"2020-05-26T10:03:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390755.1/warc/CC-MAIN-20200526081547-20200526111547-00424.warc.gz","language_score":0.9425634145736694,"token_count":105,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__78888488","lang":"en","text":"Professor Arthur Lowery\nProfessor Arthur Lowery brings to the Centre expertise in wireless implants for brain stimulation, developed during the Monash Vision Group’s bionic eye project. He is also an expert in the use of mathematical models to study massively-complex systems, gained from working in telecommunications systems modelling.\nProfessor Lowery is internationally recognised for his innovations in optical communications, and commercialisation of research ideas.\nHe is based at Monash University, in Melbourne, and is Director of the Monash Vision Group.","domain":"optical_engineering"}
{"url":"https://www.sif.it/riviste/sif/ncr/econtents/2015/038/06/article/0","date":"2019-10-17T12:57:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986675316.51/warc/CC-MAIN-20191017122657-20191017150157-00288.warc.gz","language_score":0.9447975158691406,"token_count":200,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__155422057","lang":"en","text":"La Rivista del Nuovo Cimento\nYear 2015 - Issue 6 - June\nAbstract: Lévy glass is a new material which is obtained by assembly of scattering elements. The result is a bulk material which has different degrees of elasticity (from rigid as window glass to flexible as certain plastics) and which can be shaped into any desired form. In particular, Lévy glasses have special optical properties not present in other materials. The name Lévy glass is based on the fact that under certain conditions light waves perform a Lévy walk inside these materials and the resulting optical transport is superdiffusive. From a structural point of view a Lévy glass is a random fractal. We will review the optical and structural properties of Lévy glasses, their design criteria, as well as their experimental realization. Also we will go into various fundamental aspects of Lévy-type light transport, discussing both superdiffusion as well as interference effects like weak and strong localization.","domain":"optical_engineering"}
{"url":"http://www.exampleessays.com/viewpaper/49389.html","date":"2017-01-17T03:04:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560279410.32/warc/CC-MAIN-20170116095119-00234-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.9661708474159241,"token_count":396,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__71165735","lang":"en","text":"Simple though it may seem, corrective eyeglasses are a very complicated invention. The actual inventing of eye glasses evolved throughout a very extensive time period but the closest date to what could most nearly be classified as the invention of eyeglasses would be sometime in 1303 when physician Bernard of Gordon noted that the use of spectacles could be used in correcting long-sightedness and then later in the century it is speculated that Roger Bacon probably actually invented this device (Broton). From there on researchers began experimenting with curvatures and widths of lenses to eventually aid the visually impaired.\nEyeglasses have a variety of structures to that are used for aiding and correcting defective sight. Generally they consist of a pair of lenses in a frame to hold them in the correct position in front of the eyes. Lenses are in most cases made of ground glass. A lens works by creating an image through the refraction of light. Each lens surface is made as a part of a spherical surface. To each surface there is what is called a center of curvature. This is the point in he middle of the sphere at which every point on the surface is equally spaced around. There are two centers of curvature in a lens and the line joining the two centers passes through a point called the optical center. The light is refracted, or bent, through the entire lens except through this point. Where the line joining the two centers passes through is called the principal axis. Any line that passes at an angle to the principal axis is called a secondary axis. Any light that is refracted through the lens is bent toward the thickest portion of the lens. There are basically two basic types of lenses, concave and convex. Concave lenses are thicker at the edges then at the center while convex lenses are thinner at the edges then at the center. These are used separately or in coordination with each other to correct different eye problems (Lens, In Optics, Physics).","domain":"optical_engineering"}
{"url":"https://cgs.unipv.it/eng/?page_id=84","date":"2024-04-13T05:40:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816586.79/warc/CC-MAIN-20240413051941-20240413081941-00231.warc.gz","language_score":0.8724525570869446,"token_count":605,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__64582540","lang":"en","text":"Patrizia Vaghi Amanda Oldani\ntel. 0382987548 email@example.com\nConfocal microscopy, thanks to the innovative optical system, eliminates the interference of out-of-focus fluorescence on immunofluorescent sample and allows three-dimensional reconstruction. The production of the confocal image is achieved by illuminating the sample with a laser beam that is sequentially focused on each individual point of the sample along both the XY and Z plane. The image of the entire object is reconstructed by a subsequent analysis of the individual points scanned through appropriate software.\nInverted Leica DMI 6000 microscope with the following objectives: 63x oil, 40x oil, 20x oil, 25x water for diafanized preparations; The microscope is also equipped with a interfering contrast kit.\nLeica TCS SP5 II confocal microscopy system equipped with the following lasers: 405 nm, Ar 458 nm, 476 nm, 488 nm, 514 nm; HeNe 543 and HeNe 633 nm\n- Leica TCS SP8 STED 3X (Stimulated emission depletion) microscope\n- Leica DMi8 S TIRF (total internal reflection fluorescence) microscope uses a technique for selectively imaging fluorescent molecules in an aqueous environment only in one plane in the sample of 100–200 nm thickness. The instrument is equipped with Filter wheel FURA allows switching wavelengths between 20 and 28 ms.\nThis technique is mainly used on in vivo sample to qualitatively and quantitatively describe the roles different proteins play in exocytosis/endocytosis, to observe the size, of the contact region between a cell and the solid substrate, for tracking cell movements or protein movements inside the cells.\nLeica TCS SP8 DLS is an innovative concept to integrate the Light Sheet Microscopy technology into the confocal microscope. This technique is minimally invasive, strongly reduced photo-bleaching and photodamage and has a high acquisition speed. The instrument is equipped with a muntiband spectral scan head. White laser and AOBS devices allow the excitation wavelength selection between 470 nm and 670 nm. Laser Argon 488. High-efficiency HyD fluorescence emission detection system. Lightning deconvolution system. 3D Reconstruction Software, Colocation, FRAP, FRET. DLS module, digital light sheet, which allows the three-dimensional reconstruction even of “in vivo” preparations such as zebrafish, drosophila, c. elegans. The low phototoxicity allows very long observation times of sensitive samples, the high imaging speed allow fast volumetric imaging and imaging of fast processes. This technique is useful in small organisms developmental biology, mostly in embryos and larvae, cleared organs and spheroid. Fast imaging becomes particularly important in dynamic processes such as cell motion, tracking of vesicles, cell lineage and differentiation.","domain":"optical_engineering"}
{"url":"https://www.news-blast.com/2021/06/new-xenon-jade-lens-series-for-1-2-sensors-with-particularly-high-imaging-performance-and-image-position-stability/","date":"2021-06-14T16:18:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487612537.23/warc/CC-MAIN-20210614135913-20210614165913-00492.warc.gz","language_score":0.8495801091194153,"token_count":379,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__182460301","lang":"en","text":"The five lenses with a speed of 2.8 and focal lengths of 12/16/25/35/50 mm are suitable for pixel sizes down to 2.4μm and are therefore well suited for use in combination with Sony’s IMX253, 420/425 and 530/540 sensors.\nThe lenses already offer particularly good imaging performance at open aperture – with either visible or IR illumination.\nDue to the precise and stable mechanics, the image position is maintained even in harsh industrial environments with high shock and vibration.\nThis makes the Xenon-Jade lenses particularly suitable for demanding inspection and measurement tasks in 3D / 2D metrology and robotic vision. Other areas of application include surface inspection, quality control and classification from classic machine vision and automated optical inspection (AOI).\nThe Schneider Group specializes in developing, producing and manufacturing highperformance lenses and filter systems for industrial applications, cine and photography. It also offers high-quality precision mechanics and servo hydraulics. The company’s main brand \"Schneider-Kreuznach\" stands for state-of-the-art technology from Germany. The group has been a world market leader in the field of high-performance lenses for many years. The Schneider Group consists of Jos. Schneider Optische Werke GmbH founded in Bad Kreuznach in 1913, and its subsidiaries PENTACON (Dresden), Schneider Optics (New York, Los Angeles), Schneider Asia Pacific (Hong Kong) and Schneider Optical Technologies (Shenzhen). The Schneider Group has around 500 employees worldwide, including 315 at its German headquarters.\nJos. Schneider Optische Werke GmbH\n55543 Bad Kreuznach\nTelefon: +49 (671) 601-0\nTelefax: +49 (671) 601-109","domain":"optical_engineering"}
{"url":"http://biopticinc.com/index.php?id_product=326&controller=product","date":"2021-05-06T18:18:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988759.29/warc/CC-MAIN-20210506175146-20210506205146-00313.warc.gz","language_score":0.851280689239502,"token_count":456,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__171222610","lang":"en","text":"DMP-1000 camera software\n0 Item Items\nWarning: Last items in stock!\nThe DMP-1000 is designed as a software accessory for your video systems. The software provides functions for your daily usage, such as image documentation, image annotation, measurement and visual inspection. The software is very easy to use and provides a low cost solution to improve your productivity.\nThe software can acquires and display live images from different interfaces, such as frame grabber, FireWire (IEEE 1394), CameraLink and USB2. It also can acquires images from DirectShow, files and clipboard. The software reads and writes images in many file formats and handles standard size to large size of images. You can view, analyze, process or measure the image. You can compare archived images to a live image or other archived images in split screen, overlay and blink modes facilitating rapid comparison between a “known standard” and an image to be inspected. Then you can save, print or output image, or image with graphical results or annotation.\nThe software uses advanced edge detection technology and gives you sub-pixel accuracy for your measurement. If the edge detection is enabled, you do not need to select a point exactly on the edge. The software will automatically search the edge for you and will deliver fast, reliable and repeatable measurement results. The measurement points and results can be shown on the image as annotation. You can format measurement results and send them to spreadsheet in real-time. The calibration is simple, easy and automatic.\nThe software works with 32 bit / 64 bit Windows 7 . It takes advantage of the latest operating systems, and provides a familiar, graphical environment. It is used for product inspection, quality control, training, class room or laboratory applications.\n• Support Digital Camera or Frame Grabber for Live Display, Measurement and Annotation\n• Image Processing and Comparison\n• Handle Large Size of color or monochrome Images\n• Save Images with Annotation in many popular formats\n• Automatic Sub-pixel Edge Detection\n• High Precision Measurement\n• Flexible Data Formatting\n• Real Time Data to Spreadsheet\n• Direct DRO Measurement\n• Built In Comparison Patterns.\nNo customer reviews for the moment.","domain":"optical_engineering"}
{"url":"https://www.spacecentre.nz/resources/faq/spaceflight/moon-hoax/shadows-parallel.html","date":"2022-08-10T10:50:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571153.86/warc/CC-MAIN-20220810100712-20220810130712-00328.warc.gz","language_score":0.9450930953025818,"token_count":224,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__154826448","lang":"en","text":"Why aren't shadows parallel in the Moon photos?\nSome photographs taken during the Moon landings show shadows that are converging. Conspiracy theorists argue that, since light rays from the sun are parallel, any shadows cast by the Sun should also be parallel. Shadows that are not parallel are said to be caused by studio lighting, either by a light source which is relatively close and/or by multiple light sources.\nThe truth is that converging shadows are a well-know optical phenomena in photography. There is nothing mysterious about it, in fact you can easily replicate this effect yourself as per the example below.\nThis effect is caused by several factors including perspective and the way the surface is inclined relative to the camera and light source.\nIf this is not proof enough, there are two more points to note:\n- A light source placed close to the objects would not create converging shadows - it would create diverging shadows.\n- Multiple light sources create multiple shadows. We do not see this in the Apollo photos.\n>> Back to the Moon Hoax FAQ\nAuthor: Dave Owen.","domain":"optical_engineering"}
{"url":"http://www.earthworks-jobs.com/rsgis/utas20021.html","date":"2020-06-01T17:14:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347419056.73/warc/CC-MAIN-20200601145025-20200601175025-00321.warc.gz","language_score":0.8990453481674194,"token_count":399,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__168988435","lang":"en","text":"Postdoctoral Research Fellow in Remote Sensing\nWithin the College of Sciences and Engineering, School of Technology, Environments and Design (STED), the TerraLuma Project aims to develop tools and algorithms for environmental remote sensing applications with unmanned aircraft systems (UAS, also known as drones).\nThe Postdoctoral Research Fellow in Remote sensing plays a key role within the TerraLuma Research Group, responsible for undertaking high quality research within the Australian Research Council (ARC) Discovery Project 'Ultrahigh-resolution and remote sensing for assessing biodiversity hotspots'. This role will focus on the analysis of hyperspectral UAS data for mapping of functional plant traits, developing advanced techniques for interpreting data from ultrahigh-resolution remote sensing in Australian forested ecosystems. In addition, the Postdoctoral Research Fellow will have a unique opportunity to contribute to an ARC Linkage project \"Advancing remote sensing with a world-first High Altitude Pseudo Satellite (HAPS)\". This project aims to develop and test a high-performance hyperspectral imaging instrument for a solar-powered, long-endurance, stratospheric UAS platform. This platform is intended to be used for multi-week missions. Hyperspectral imaging capabilities on such a platform would fill a gap in current airborne and spaceborne earth observation capabilities. We are looking for applicants who have demonstrated experience and a good research track record in hyperspectral remote sensing of vegetation.\nTo be successful in the role, your application will need to demonstrate;\nThis position is being offered at either Level A, or Level B based on qualifications, skills and experience, and will have a total remuneration package of up to $133,842 comprising base salary within the range of $71,443 to $114,395 plus 17% superannuation.\nHow to Apply\nApplications close Friday, 27 March 2020, 11.55pm\nYou must have the right to live and work in this location to apply for this job.","domain":"optical_engineering"}
{"url":"https://www.fbk.eu/en/event/10761/forensor-is-participating-in-sre-2018/","date":"2024-04-25T07:08:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00397.warc.gz","language_score":0.9212905764579773,"token_count":149,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__204707464","lang":"en","text":"FORENSOR is participating in SRE 2018\nThe prototype will be presented at the “Fight Against Crime & Terrorism” Exhibition. FORENSOR is contributing with two main innovations:\n- a CMOS imaging sensor with embedded intelligence (the Vision chip) to filter out irrelevant events (i.e. repeated motion) and detect only moving objects of interest, such as vehicles;\n- an intelligent vision sensor, based on the vision chip, which supports advanced algorithms, communications, etc. that can identify higher level interest events.\nIn other words, FORENSOR can operate most of the time in a low power sus state and be woken up by the vision chip for further processing only when a significant object has been detected.","domain":"optical_engineering"}
{"url":"https://shopchadwickoptical.com/pages/cvd-filters","date":"2024-04-22T06:27:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00820.warc.gz","language_score":0.8252721428871155,"token_count":482,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203966725","lang":"en","text":"Wanna hear some great news? Using Chemistrie Color lenses for Color Vision Deficiency (CVD), your colorblind patients can access the latest in lens technology. Wanna hear even better news? Our made-to-order fitovers are an affordable, quick way to get these lenses into your patients’ hands.\nNeed colorblind lenses in a different fit type? Let us know. Chadwick Optical, can make CVD fitovers in other styles, clip-ons, and plano lenses.\nDeveloped using AI-driven technology, Chemistrie Color lenses assist with the perception of color in those with color vision deficiency (CVD). Instead of relying on heavy red or pink tinted lenses, Chemistrie Color lenses enhance genuine color vision. Patients experience the truest possible discernment of color.\nRed lenses rely on heavy tinting that helps patients distinguish colors but also shifts their entire color spectrum so everything has a red hue. Chemistrie Color lenses are modified in the specific part of the visible light spectrum where patients with CVD are deficient. With Chemistrie Color lenses, patients can see truer color. White remains white and no colors are artificially darkened.\nAVAILABLE CVD FITOVER SHADES\n- A – Indoor: for patients who will use the lens mostly indoors\n- B – Outdoor Moderate: for patients who are light sensitive indoors or want a lighter outdoor tint\n- C – Outdoor Severe: for patients who want an outdoor lens and suffer from light sensitivity\nFitovers are a convenient option for patients who use prescription glasses but don’t need to wear a medical tint full-time. Fitover options may be right for your patients if they:\n- Want colorblind lenses as fast as possible\n- Wear multiple pairs of glasses and need a solution that works with all frames\n- Prefer fitovers to clip-ons\n- Need the most affordable option\n- Can’t or don’t want to send their frames in for clip-ons to be made\nIf you need assistance finding the right frames, determining if a fitover model is available, or what tint is best for your patient, give us a shout. We’re happy to help you in any way that we can.Contact Us","domain":"optical_engineering"}
{"url":"http://shutterbugcamerashops.com/spec-sheet.html?catalog%5Bname%5D=Olympus-VF-1-Viewfinder-for-17mm-Micro-4%2F3-Lenses-%23260052-Miscellaneous-Camera-Accessories&catalog%5Bproduct_guids%5D%5B0%5D=1125508","date":"2020-02-27T20:18:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146809.98/warc/CC-MAIN-20200227191150-20200227221150-00226.warc.gz","language_score":0.826195240020752,"token_count":121,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__146632004","lang":"en","text":"Optical Viewfinder VF-1 for use with the 17mm Micro Four Thirds pancake lens. This externally attached optical viewfinder approximates the view of the pancake lens. It uses a bright 17mm frame to enable comfortable picture composition.\nNote: When in use with the E-PL1 or E-PL2 the image in the viewfinder will be off center due to the postioning of the hot shoe on the camera.\n- Bright-line optical viewfinder mounts on the hotshoe\n- Multi-coated glass lens element construction\n- Available in silver","domain":"optical_engineering"}
{"url":"https://kkyoka.oeic.hokudai.ac.jp/frontier/en/researcher/18/vol1/031.html","date":"2021-12-09T07:27:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363689.56/warc/CC-MAIN-20211209061259-20211209091259-00123.warc.gz","language_score":0.9287822842597961,"token_count":1155,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__55358417","lang":"en","text":"Creating New Measurement Devices Using Polarization ? from Inspecting Semiconductors to the Detection of Planets outside the Solar System.\nKazuhiko Oka , Associate Professor,\nFaculty of Engineering / Graduate School of Engineering (School of Engineering, Department of Applied Science and Engineering, Applied Physics and Engineering Course)\nHigh school : Niigata Prefectural Takada High School\nAcademic background : Masters from the University of Tokyo\n- Research areas\n- optical engineering, optical physics\n- Research keywords\n- polarization, compact polarimeter, optical vortex\nWhat is the subject of your research?\nWe learn in high school that light is a wave. However, none of us have ever actually seen the vibration of light. This is because light waves vibrate so rapidly that humans are not able to directly observe it. As a matter of fact, the “invisible waves” of light possess a range of properties that are very different to the waves that we would imagine. For example, Photo 1 shows some words on paper viewed through a crystal known as calcite. You can see that the image is doubled. In addition, if you place a polarizer over this calcite and rotate it, the two images alternatively fade in and out. “Polarization” is a property of waves relating to the difference in the direction of vibration, but it also relates to the creation of a double image. One further thing – this phenomenon does not even fulfill Snell’s law.\nPhoto 1 Strange light waves: double image made by calcite.\nIn high school physics we learn only the basic, albeit the ideal, situation regarding light waves, which are characterized as being similar to water and sound waves (this is important in itself). However, if we look at the properties of light waves in non-ideal conditions, we see that they possess some strange but fascinating properties. The purpose of my research is to use these strange properties of light waves to create useful devices. In particular, I have recently developed several devices using polarization.\nResearch project 1: Creating a super-compact polarimeter\nPolarization is invisible, so you probably don’t realize it exists, but it has recently been used in a wide range of areas. Items immediately around you that use polarization include LCD TVs, 3D TVs, mobile phones, CDs/DVDs and fiber optic Internet connections. Furthermore, devices used in factories for precise inspection of semiconductors and solar cells, and devices used in hospitals to examine eye diseases, sometimes use polarization. Devices that use polarization in this way are increasing rapidly around us. In order to apply this technology even more, it is vital to be able to accurately and efficiently measure polarization. One of the themes of my research is the development of new polarimeters to meet this demand.\nUp until recently, the measurement of polarization was mainly done by use of a motor that rotates a polarizing element; the polarization is determined from the changes in the brightness of the transmitted light. This principle is based on basic and easily understandable polarization theory, but the use of a motor limits the size and the performance of the measurement system. In contrast, we used the peculiar polarizing properties of calcite to develop an entirely new polarization measurement method that does not require a motor. This method makes it possible, for example, to build a semiconductor inspection device that fits in the palm of the hand, as in Photo 2. Conventional inspection devices were the size of a copier machine, but we were able to reduce the size significantly. In addition, as shown in Photo 3, we are now prototyping a compact polarimeter that is the size of a pencil. In the future, we would like to build even smaller polarimeters so that we may be able to examine the inside of the human body. We know that cancer and myocardial infarction cells have specific polarization attributes, and the technology of the future is expected to lead to new methods regarding their diagnosis and treatment.\nPhoto 2 Semiconductor inspection device that fits in the palm of the hand. Conventional devices were the size of a copier machine.\nResearch project 2: Searching for aliens with a helical beam\nAnother one of our research themes is about “optical vortex”; this is light with a helical wavefront like that shown in Fig. 1. This light possesses several interesting properties. For example, the center of the light beam is completely dark as shown in Fig. 2, and the light has torque to rotate microscopic particles.\nFig. 3 Astronomical instrumentation used for detection of planets orbiting stars other than our Sun.\nWe are engaged in research into how optical vortices are formed using a special polarization device, and we’re also thinking a lot about various applications of optical vortices. For example, this technology has been combined with an astronomical telescope to search for “exoplanets” orbiting stars other than our Sun. By making use of optical vortex, it is possible to extinguish the light from a bright star so that we can detect the light from faint exoplanets (Fig. 3). We may be able to find life in extrasolar system in this way.\nFig. 1 Helical wavefront of an optical vortex.\nFig. 2 Distribution of optical intensity in cross-section of optical vortex. The center has a zero intensity.","domain":"optical_engineering"}
{"url":"https://www.umiacs.umd.edu/research/GPU/vision.html","date":"2021-05-12T18:30:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989766.27/warc/CC-MAIN-20210512162538-20210512192538-00508.warc.gz","language_score":0.9328351616859436,"token_count":722,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__204818939","lang":"en","text":"Real-Time Computer Vision\nOur work in real-time computer vision applications is based on distributed cameras. By using distributed cameras, traditional problems confronted when using a single camera such as occlusion, disappearance and reappearance of objects, and recovery of 3D motion trajectories of small objects, can be conveniently addressed. The Maryland CPU-GPU cluster is well suited for the highly parallel task of video processing and the tiled display wall enables novel means of visualizing the results.\nFlexiview - A 4D Video Surveillance System\nCorporate Collaborators:Art Pope and Tom Strat (SET Corporation)\nGraduate Students:Aniruddha Kembhavi, Kaushik Mitra, Rob Patro, Aswin Sankaranarayanan, and Roman Stanchak\nUndergraduate Students:John Dickerson\nThe 3D model and individual video feeds visualized on tiled display\nVideo surveillance systems are currently limited by the location, orientation, and resolution of the cameras that comprise the system. However, it may be possible to allow the remote observer to view the scene from any vantage point, regardless of where the cameras happen to have been placed. That is, each remote viewer could direct the video stream as if he had complete control of the camera placement -- he could direct the placement of a virtual camera and move it about at will, to obtain the vantage point that best allows him to observe what is most important to him.\nFlexiView is a design to fulfill this vision of 4D visualization. The output of multiple video cameras is analyzed to produce a 4D model -- one that captures the full 3-dimensional shape of all scene entities (people, buildings, vehicles, etc.) as well as the dynamics (movement and motions) of all objects in the scene. With that 4D model, novel views of the scene can be synthesized that give the illusion of what would be seen had there actually been a video camera placed at the virtualized location. The remote observer can control this 4D visualization as if he had a 4D version of a TiVo DVR -- he can stop, reverse action, and review in slow motion, but he can also move the camera position and orientation in 3-space, to view the action from novel vantage points.\nThe technology to support this fully does not exist, but significant research advances have been made that may be combined to allow construction of a reasonable prototype. In particular, structure-from-motion, moving object detection and tracking and image-based rendering techniques provide the foundation upon which to build the 4D visualization FlexiView system. The ultimate goal of this endeavor is to design and demonstrate a prototype of a fully automated system that can accept multiple unconstrained video streams (airborne, ground-based and hand-held) and build the required 4D models and render the scene at the will of the user.\nThe current prototype places a number of important components of this ultimate goal in place. Using video captured from both fixed and hand held cameras we have been able to determine the 3D position of up to 10 humans on a parking lot plane. Activity analysis of the video is then used to classify the humans' actions into 1 of 8 categories. Finally, we automatically build an appearance model of each human based on the color and texture of their clothing. The resulting 4D spatio-temporal model is then rendered using the OpenSG scene graph library, which seamlessly scales the visualization anywhere from a PDA screen to the tiled display wall of the CPU-GPU cluster.","domain":"optical_engineering"}
{"url":"http://www.ila.org.in/lasernews/ln983/ln983a02.html","date":"2018-10-22T02:37:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514443.85/warc/CC-MAIN-20181022005000-20181022030500-00322.warc.gz","language_score":0.8872898817062378,"token_count":1090,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__40491346","lang":"en","text":"Sunita Singh and G. Sridar\nLaser & Plasma Technology Division\nB.A.R.C., Trombay, Mumbai\nA tunable, narrow-band CW dye\noscillator pumped by a commercial Argon ion laser has been indigenously\ndeveloped at the Laser and Plasma Technology Division, BARC.\nThe schematic of the standing wave CW dye laser that utilizes\na three-mirror non-collinear folded cavity is shown in Fig.1.\nMirror M1 (Rc = 50mm, R>99%) and M3 (Rc = , R=96%) form the end mirror and the output coupler respectively whereas, mirror M2 (Rc = 75mm) constitutes the folding mirror in the resonator cavity. A low divergence (10.5mR) commercial Argon ion laser (6W all lines) was\nused to pump the CW dye laser\noscillator. The pump beam was focused into a tiny spot of diameter\n~10 m in the dye gain medium with a fourth mirror M4\n(Rc = 75mm). The gain medium was in the form of a thin\nhorizontal laminar sheet of free flowing dye jet stream with a\nhigh velocity of 15 m/s. The jet stream is preferred over conventional\ndye cells with windows as the tightly focused pump beam can produce\nhigh enough intensities causing optical damage of the windows.\nThe dye jet nozzles are indigenously designed  and generate\nan optical quality laminar flow of Rh6G dye dissolved in viscous\nsolvent ethylene glycol.\nLasing action in the CW dye\nlaser was achieved by initially focussing the Argon beam into\nthe horizontal fast flowing dye jet as mentioned above. The moderate\npower beam from the CW pump laser must be focused very tightly\nconcentrating its power in a small volume, to reach laser threshold.\nThe upper laser level has a lifetime of few nanoseconds so high\npower density is needed to reach threshold. In pulsed lasers\nshort pump pulses with high peak powers make the dye laser a high\ngain system that can tolerate high cavity loss. However, the CW\npumped dye laser remains a low gain system that requires low cavity\nloss. The intracavity losses were minimized by positioning the\ndye jet at Brewster angle. Careful alignment of the folding mirror,\nthe pump mirror and end mirror was done. (The size of the fluorescent\nspots of the dye jet focused by the folding mirror and end mirror\nwere minimized and coincided). The threshold pump power was 0.5W\n(power density=600 kW/cm2) at which the lasing action\nThe wavelength selective element\nused for tuning was a three- plate Birefringent filter. It consists\nof a crystalline quartz plate cut parallel to the optic axis.\nIt is positioned at Brewster angle inside the cavity. Tuning\nis achieved by rotating the plate around an axis normal to the\nplate. The Birefringent filter changes polarization to an extent\ndependent on wavelength. If the cavity allows oscillation only\nof the linearly polarized light, the laser can oscillate only\nat the wavelength at which the Briefringent filter transmits linearly\npolarized light. The laser was tunable over the wavelength range\n567 - 632nm (Rh6G conc = 1g/L). Efficiency defined as the ratio\nof output power to input power was measured at the peak of the\ntuning curve to be 15% with Birefringent filter. At 5.5 W of\nmultiline blue-green pump power, the output power measured was\nThe output of the broad band\nCW dye laser is a group of discrete frequencies whose envelope\nhas an effective linewidth. The linewidth of the CW dye laser\nconsisting of 3- plate Birefringent tuner was measured to be ~20\nGHz using a Fabry-Perot etalon of FSR ~100 GHz. The broad line\nwidth of ~20 GHz was frequency narrowed by inserting a pair of\nthin solid etalons in the CW dye laser cavity. The subsequent\nlinewidth measurements were done with a Spectrum Analyser (FSR=7.5\nGHz, F=240) interfaced to the computer. A software program \"SPECMASTER\"\nenabled an on-line display of the frequency spectrum on the monitor.\nThe results obtained show a linewidth of 400 MHz for etalons\nof thickness 0.5mm and 10mm and the output power of 200 mW was\n T.W.Hansh, I.S.Shahin, A.L.Schawlow : Nature 253, 63 (1972).\n R.V.Ambartzumian, V.S.Letokhov, Appl. Optcs, 11, 354 (1972).\n V.S.Letokhov : Science 180, 451 (1973).\n S.Singh, R.Khare, L.G.Nair,\nU.K.Chatterjee Proc. NLS, BARC, (Jan 17-19, 1996).","domain":"optical_engineering"}
{"url":"https://www.tidewise.io/monitoramento-de-vazamento-de-oleo-1?lang=en","date":"2020-10-22T08:28:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107879362.3/warc/CC-MAIN-20201022082653-20201022112653-00085.warc.gz","language_score":0.8958519697189331,"token_count":169,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__120235513","lang":"en","text":"Oil Spill Monitoring\nUSV Tupan can be integrated with an Unmanned Aerial Vehicle (UAV) to form an autonomous system capable of detecting oil at the surface. The integrated system uses visual data to identify the oil and also collects metocean data to feed an oil dispersion model.\nWe are developing such a system through the ARIEL R&D project in partnership with Repsol Sinopec and financed by ANP.\nThis project consists of the development and integration of two autonomous systems: USV and UAV. The integrated system allows continuous monitoring and detection of oil spills at sea. In addition, the integration of metocean sensors allows it to integrate with existing oil dispersion models, providing forecasts. The USV and the UAV will work autonomously and collaboratively.\nOffshore construction support","domain":"optical_engineering"}
{"url":"https://goprodiver.com/fisheye-lens-vs-rectilinear-lens-for-underwater-photography/","date":"2023-06-08T02:45:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654031.92/warc/CC-MAIN-20230608003500-20230608033500-00632.warc.gz","language_score":0.9533458352088928,"token_count":1009,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__96914629","lang":"en","text":"Have you ever wondered what kind of lens is best for underwater photography? In this article, we’ll be comparing fisheye lenses and rectilinear lenses to help you make the best decision for your needs!\nThe difference between fisheye and rectilinear lenses\nThere are two main types of lenses used for underwater photography: fisheye and rectilinear. Fisheye lenses have a very wide field of view, while rectilinear lenses have a more narrow field of view.\nEach type of lens has its own advantages and disadvantages. Fisheye lenses are great for capturing wide angle shots, but they can distort straight lines. Rectilinear lenses don’t have this problem, but they can’t capture as much of the scene.\nSo which type of lens is best for underwater photography? It really depends on the situation and what you’re trying to capture. If you’re shooting a wide angle shot, then a fisheye lens is probably your best bet. But if you’re shooting something that requires straight lines, like a shipwreck, then a rectilinear lens is probably your best choice.\nThe pros and cons of each type of lens\nWhen it comes to lenses for underwater photography, there are two main types: fisheye and rectilinear. Each has its own advantages and disadvantages, so it’s important to know which one is right for your needs.\nFisheye lenses have a very wide field of view, making them great for capturing large subjects or wide vistas. They can also be used to create interesting distortions and effects. However, because of their extreme curvature, they can be difficult to keep in focus, and straight lines often appear curved in fisheye images.\nRectilinear lenses are more like traditional camera lenses, with a narrower field of view. This makes them better suited for close-up shots or images with complex compositions. They don’t distort straight lines like fisheye lenses do, but they can suffer from “comma” distortion at the edges of the frame.\nSo, which type of lens is right for you? It really depends on what you want to photograph and your personal preferences. If you’re just starting out, a fisheye lens can be a great way to experiment and have some fun with underwater photography.\nWhat type of photography is each lens best suited for?\nBoth fisheye and rectilinear lenses have their pros and cons when it comes to underwater photography.\nFisheye lenses have a very wide field of view, which is great for capturing large schools of fish or coral reefs. However, the trade-off is that objects in the center of the frame can appear distorted.\nRectilinear lenses don’t have this problem, but they don’t provide as wide of a field of view. So, it really depends on what type of underwater photography you’re interested in as to which lens is best suited for you.\nHow to choose the right lens for your needs\nWhen it comes to underwater photography, you have two main choices for lenses – fisheye and rectilinear. So, which one is right for you? Here’s a quick rundown of the pros and cons of each type of lens to help you make your decision:\nFisheye lenses are great for capturing wide-angle shots and can be incredibly useful for getting close-up shots of small subjects. They also have the added benefit of being able to correct for distortion, which can be a common issue with underwater photos. However, fisheye lenses can be more difficult to use than rectilinear lenses and can produce some distorted images if used incorrectly.\nRectilinear lenses are ideal for taking photos of larger subjects, such as reefs or shipwrecks. They don’t suffer from the same level of distortion as fisheye lenses, making them easier to use. However, they don’t offer the same wide-angle capabilities as fisheye lenses, so you may need to use several rectilinear lenses to get the shot you want.\nThere is no clear winner when it comes to fisheye lens vs. rectilinear lens for underwater photography. It really depends on your personal preferences and what you want to achieve with your photos.\nIf you’re looking for creative and unique shots, then a fisheye lens might be the way to go. If you’re more interested in capturing accurate images of fish and other underwater creatures, then a rectilinear lens would be a better option. Ultimately, it’s up to you to decide which type of lens is right for your needs.","domain":"optical_engineering"}
{"url":"https://dwe.ai/blogs/news/the-worlds-first-subsea-computer-vision-camera","date":"2024-04-20T11:24:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00016.warc.gz","language_score":0.8778693675994873,"token_count":386,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__145959225","lang":"en","text":"Introducing the world's first patent-pending subsea UVC (USB video class) camera; boasting almost 2 Million Pixels with an HD Global Shutter sensor, pushing an immense amount of 60FPS data, all through a simple USB interface that works with any computer.\nAlong with the camera, we are introducing the first-of-its kind technology, PrecisionSync™; used for synchronizing video frames between multiple devices. Achieve microsecond level accuracy between a multitude of daisy-chained devices.\nAnother innovation, that has been over a year in the making, is our custom brand new 7-element optics, Aquagon™. Our custom blend of optics, which took thousands of hours to simulate, test, and refine, effectively minimizes distortion, chromatic aberration, increases sharpness and field-of-view (FOV). The result is an image that makes the effects of water and refraction virtually invisible.\nThis high-accuracy technology is absolutely essential for enabling so many high-accuracy underwater technologies:\n- Stereo Vision\n- 360° Video (VR/AR/XR applications)\n- Underwater Motion Capture/Pose Estimation\n- 3D Reconstruction\n- Real-Time Simultaneous Localization and Mapping (SLAM)\n- Autonomous Navigation\n- Machine Learning (ML/AI) models\nAll of this, in a plug-and-play package that fits in the palm of your hands. Requires absolutely no external drivers, no special code, and no special hardware.\nOption it with an impressive 1,000 meters or 6,000 meters underwater-depth rating.\nThis camera is built from the ground up with our customers in mind. Equipped with a modern Global Shutter sensor for incredible image clarity, colors, and sharpness. See visibly less noise than any other camera with our proprietary circuit design.","domain":"optical_engineering"}
{"url":"https://southernmicroscope.com/new-microscopes-equipment/","date":"2023-09-24T22:38:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.96/warc/CC-MAIN-20230924223409-20230925013409-00832.warc.gz","language_score":0.8708815574645996,"token_count":394,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__172123568","lang":"en","text":"New Microscopes & Equipment\nSouthern Microscope is pleased to offer a variety of Microscopes from Olympus & Accu-Scope as well as the Excelis HD Camera. We know that at some point, you may need to replace your equipment. We take pride in offering high-quality, new models to satisfy our clients. On request, we will sell parts, upgrades, or lighting sets, if we have them in our stock. Simply send us a request and we will do our best to fill it!\nThe Olympus CX33\nThe Olympus CX33 microscope comes standard with a trinocular head and plan achromat objectives. The microscope is designed with ergonomic user-friendly features and functions. The LED illumination eliminates the need to ever change a bulb!\nThe Olympus CX23\nThe Olympus CX23 model is easy to use and offers outstanding optical performance with a large 20mm field of view. The LED light source provides stable long-term illumination. This microscope is ideal for education or laboratories.\nThe Accu-scope 3000-LED\nThe Accu-scope 3000-LED Microscope Series delivers outstanding optical performance, value, and resolution to meet the exacting standards of life science professionals and students.\nThe Accu-scope EXC-120\nThe Accu-scope EXC-120 Series delivers exceptional value and performance for an entry-level clinical microscope.\nExcelis 4K UHD Microscopy Camera\nThe new Excelis 4K, 8MP CMOS color microscopy camera delivers exceptional color images with exceptional resolution.\n- HDMI, USB 3.0, and Ethernet triple functionality!\n- Built-in software—No PC required!\n- CaptaVision+ Imaging Software\nWe Also Carry Refurbished Equipments!\nBesides New Equipment, we also carry Refurbished Equipment. Contact Us to get a complete list of refursbished equipment.","domain":"optical_engineering"}
{"url":"https://photik.in/LaserPhotonics/SourceTHzSource","date":"2024-04-15T02:39:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816939.51/warc/CC-MAIN-20240415014252-20240415044252-00424.warc.gz","language_score":0.945732593536377,"token_count":204,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__14246933","lang":"en","text":"Terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency (THF), T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz (THz), although the upper boundary is somewhat arbitrary and is considered by some sources as 30 THz. One terahertz is 10^12 Hz or 1000 GHz. Wavelengths of radiation in the terahertz band correspondingly range from 1 mm to 0.01 mm. Because terahertz radiation begins at a wavelength of around one millimeter and proceeds into shorter wavelengths, it is sometimes known as the submillimeter band, and its radiation as submillimeter waves, especially in astronomy. This band of electromagnetic radiation can be regarded either as microwave or far infrared.\nWe have fixed wavelength as well as tunable THZ sources.","domain":"optical_engineering"}
{"url":"https://doc.rc-visard.com/latest/en/concept_stereo.html","date":"2024-04-24T22:20:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819971.86/warc/CC-MAIN-20240424205851-20240424235851-00881.warc.gz","language_score":0.8961548209190369,"token_count":483,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__45023274","lang":"en","text":"In stereo vision, 3D information about a scene can be extracted by comparing two images taken from different viewpoints. The main idea behind using a camera pair for measuring depth is the fact that object points appear at different positions in the two camera images depending on their distance from the camera pair. Very distant object points appear at approximately the same position in both images, whereas very close object points occupy different positions in the left and right camera image. The object points’ displacement in the two images is called disparity. The larger the disparity, the closer the object is to the camera. The principle is illustrated in Fig. 16.\nStereo vision is a form of passive sensing, meaning that it emits neither light nor other signals to measure distances, but uses only light that the environment emits or reflects. Thus, the Roboception products utilizing this sensing principle can work indoors and outdoors and multiple devices can work together without interferences.\nTo compute the 3D information, the stereo matching algorithm must be able to find corresponding object points in the left and right camera images. For this, the algorithm requires texture, meaning changes in image intensity values due to patterns or the objects’ surface structure, in the images. Stereo matching is not possible for completely untextured regions, such as a flat white wall without any visible surface structure. The stereo matching method used by the rc_visard is SGM (Semi-Global Matching), which provides the best trade-off between runtime and accuracy, even for fine structures.\nThe following software modules are required to compute 3D information:\n- Camera: This module is responsible for capturing synchronized image pairs and transforming them into images approaching those taken by an ideal camera (rectification).\n- Stereo matching: This module computes disparities for the rectified stereo image pair using SGM.\nFor stereo matching, the position and orientation of the left and right cameras relative to each other has to be known with very high accuracy. This is achieved by calibration. The rc_visard’s cameras are pre-calibrated during production. However, if the rc_visard has been decalibrated, during transport for example, then the user has to recalibrate the stereo camera:\n- Camera calibration: This module enables the user to recalibrate the rc_visard’s stereo camera.","domain":"optical_engineering"}
{"url":"http://www.iptrolite.com/product/narrow-wide-angle-spot-light","date":"2020-05-26T20:33:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347391309.4/warc/CC-MAIN-20200526191453-20200526221453-00105.warc.gz","language_score":0.8216521143913269,"token_count":105,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__158109220","lang":"en","text":"AvL Flood Light series has a widespread and versatile use for parking lots, storehouses, playgrounds and stadiums. LED technology characteristically allows for selective lighting and projected illumination. This translates to a minimum of 50% savings while increasing the effectiveness of the lighting output.\nPower : 30, 50, 100, 150, 200W\nBeam Angle : 10, 25, 40, 60.\nCCT : 3000K, 4000K, 6000K\nEnquiry will send to email@example.com","domain":"optical_engineering"}
{"url":"https://ios-conference.pl/index.php/conference-programme/nlpqt","date":"2022-09-27T23:03:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335059.31/warc/CC-MAIN-20220927225413-20220928015413-00469.warc.gz","language_score":0.8911049365997314,"token_count":459,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__56401880","lang":"en","text":"The National Laboratory for Photonics and Quantum Technologies - NLPQT - is a nationwide investment project carried out by a consortium of 7 scientific units led by the University of Warsaw. The main purpose of the project is to create new research infrastructure in three areas:\n- Generation and Distribution of Reference Optical Carrier\nThe main goal of the National System for Generation and Distribution of the Reference Optical Carrier is to construct an ultra-stable laser system that can be linked to an optical atomic clock, along with a distribution network using optical fibers. The optical reference signal with low phase noise will be distributed from Toruń to all of the participants of the NLPQT consortium where it will be available to both interested researchers and industry partners.\n- Photonic Technologies\nAnother aim of the NLPQT project is to build a network of research stations which will either extend the existing or provide completely new research opportunities. The new equipment will be used in a wide variety of applications such as spectroscopic studies of materials (e.g. the analysis of trace air pollutants or characterization of new materials for photovoltaics and medicine), fabrication of specialized optical fibers, development of nano- and microstructures for optoelectronic and medical applications, design, production and characterization of lighting systems, two- and three-dimensional imaging of biological objects and many others.\n- Quantum Technologies\nIn the area of quantum technologies, the NLPQT project is focused on the development of a country-wide infrastructure enabling practical utilization of properties of individual quantum objects. A particular emphasis is put on the possibility of using single photons in quantum communication, which will enable both research and development work on quantum key distribution (QKD) as well as integration of such solutions with other mechanisms used to secure data transmitted over existing IT and telecommunication systems. Furthermore, test workstations utilizing real-life applications of such quantum objects as single electrons, quantum dots, or atoms will also be established.\nThe infrastructure built within the framework of the NLPQT project will not only serve the scientists directly involved in the project, but will also be available to other researchers and industry partners. For more information visit the website of the Project at http://nlpqt.fuw.edu.pl.","domain":"optical_engineering"}
{"url":"http://www.moheresults.com/solution/1194.html","date":"2022-07-02T10:25:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104054564.59/warc/CC-MAIN-20220702101738-20220702131738-00501.warc.gz","language_score":0.671862006187439,"token_count":205,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__117755263","lang":"en","text":"Concentrated Solar can efficiently convert sunlight into electricity. Throughout the process, the silicone made into an optical lens to gather light onto the cells. And such work extremely fine optical lens can be made with high transparency of the SEPNA Silicone rubber encapsulation resin.\n|Four models recommended to the application|\n|SI1106||Renewable energy||Silicone Sealant||One componenet||RTV||Lens sealing|\n|SI1336||Renewable energy||Silicone Sealant||One componenet||RTV||Aluminum frame, junction box bonding|\n|SI2250||Renewable energy||Silicone Sealant||Two componenet||Heat vulcanized||Fresnel lens production|\n|SI2201||Renewable energy||Silicone Sealant||Two componenet||Heat vulcanized||Secondary lens production|","domain":"optical_engineering"}
{"url":"https://www.tavcom.com/course/a-technical-guide-to-optical-fibre-part-1-bitesize/","date":"2020-07-04T17:15:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655886516.43/warc/CC-MAIN-20200704170556-20200704200556-00062.warc.gz","language_score":0.8715982437133789,"token_count":141,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__131682980","lang":"en","text":"Optical Fibre is the 21st-century bandwidth saviour of communication networks, with advantages such as small size and huge bandwidth. All high-speed broadband will eventually deploy fibre, whilst it is becoming more popular in Local Area Networks to provide the carrying capacity for integrated systems. This Bitesize course will give you an understanding of the principles of operation of optical fibre.\nWhat will you learn?\n- Optical scalability and the future of communications\n- Optical network components\n- Fibre construction\n- Single vs multimode\n- Fibre problems in installation\n£11.99 inc. VAT\nLearner’s Own Pace\nTavcom Certificate (2 CPD Points)","domain":"optical_engineering"}
{"url":"https://sportyswim.co.uk/collections/junior-goggles/products/speedo-fastskin-junior-elite-mirror-goggles?variant=37127168557224","date":"2021-07-29T16:48:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153860.57/warc/CC-MAIN-20210729140649-20210729170649-00654.warc.gz","language_score":0.8813201189041138,"token_count":287,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__271282553","lang":"en","text":"Speedo Fastskin Junior Elite Mirror Goggles. Superb Speedo Junior racing goggles in Green with fashionable red mirrored lenses. The Fastskin³ Elite Mirror Goggle is Speedo's first junior racing goggle to feature their exclusive IQ Fit Technology. Developed using global head scanning research, IQ Fit technology ensures an unparalleled precision fit. A key feature of the technology is the 3D goggle seal which provides maximum leak resistance even during starts and turns. The innovative tensioning scale enables you to achieve an accurate and comfortable fit every time. The Hydroscopic lens means wide peripheral vision and the anti-fog coating ensures excellent clarity and vision. The goggle’s hydrodynamic profile makes them ideal for racing and competitions.\n- Aged 6 to 14 Years\n- IQFIT- 3D Goggle seal for a leak free, secure fit and reduced marks around the eyes\n- IQFIT- Goggle strap with patented tensioning scale for a unique and personal fit\n- Hydroscopic lens profile for maximum peripheral vision for minimum head movement\n- Fit point markers for precise allignment of Fastskin goggle and cap by touch before a race\n- Interchangeable nose bridges for an individual fit\n- Mirror lenses for reduced brightness and glare, ideal for racing and outdoor swimming\n- Anti fog coated lens with a 100% UV Protection\n- Goggle Pouch included.","domain":"optical_engineering"}
{"url":"https://ottawalandscapelighting.com/landscape-led-lighting-frequently-asked-questions/","date":"2021-07-27T19:38:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153474.19/warc/CC-MAIN-20210727170836-20210727200836-00285.warc.gz","language_score":0.943065881729126,"token_count":828,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__39196730","lang":"en","text":"Frequently Asked LED Lighting Questions\nHere are a few of our most frequently asked questions. If you don’t find the answer to your questions, please get in touch at 613.723.8528\nWhat does LED stand for?\nLED stands for Light Emitting Diode, and as the name suggests, they are diodes – encased in plastic – that emit light. A diode is a simple semi-conductor device that permits current to flow in one direction. Semiconductor diodes are a junction of two materials. One material has a surplus of positive charge, and the other a surplus of negative charge. When a forward voltage is applied, the two are brought together to release light energy – thus are ‘light emitting’,\nIs an LED fixture a bulb?\nWhile an LED fixture may appear to be a bulb, it isn’t. As mentioned above, LED’s are tiny semiconductors encapsulated in plastic (which protects their components and helps to focus the light), and typically mounted on a circuit board.\nWhat’s the difference between an incandescent bulb and LED fixture?\nLight from an incandescent is created when electricity heats up the filament, causing it to glow and generate heat… which, in turn generates light. The majority of the energy created is wasted heat, not light.\nAn LED fixture is essentially the opposite, in that light is created through a relatively cool process. When electricity is applied to a semiconductor (usually comprised of the components – gallium, arsenic and phosphorous), they’re stimulated by the movement of electrons, which create photons. Photons are the light visible to us.\nDoes an LED fixture have a wire filament?\nNo, an LED fixture operates with completely different components. Because they’re diodes, electricity can only move in one direction. Much like the familiar positive and negative terminals of a battery, the (+) anode is where the current comes in and the (-) cathode is where the current goes out.\nIncandescent bulbs are omni-directional in that they project light in every direction, while LED fixtures are designed to project light in specific directions or angles (ex: 20°, 50°, 120°, etc.).\nWhy do LED fixtures use such little power?\nSince an LED fixture doesn’t use a filament that creates light through heating, and produces light with very little heat, they are much more efficient and cost-effective to operate.\nDoes an LED fixture produce heat?\nAn LED fixture produces very little heat – and any noticeable heat is usually the result of components on the printed circuit board and not the LED itself – as compared to an incandescent bulb that uses heat to produce light.\nAre LED fixtures affected by extreme conditions?\nAn LED fixture is manufactured to perform in harsh environments and functions well in temperature ranges -40° C to over 80° C… with no delay or warm up time.\nDoes the light produced by LED fixtures attract insects?\nBecause most insects perceive entirely different light spectrums and are attracted to ultraviolet light, most can’t perceive the light an LED fixture produces… and so won’t be attracted to it.\nHow long will an LED fixture last?\nLED fixtures are rated by their manufacturers to operate under normal conditions for many, many years.\nWhy are LED fixtures more expensive than incandescent landscape lighting fixtures?\nWhile a single LED can operate as a standalone device, when grouped or clustered – as they must be in an LED fixture – they need other components, including a circuit board, driving components and a weatherproof housing to endure the elements.\nAs a result, the cost to manufacture the fixture is somewhat higher then those that house incandescent bulbs. Bit since the LED fixtures use up to 80% less electricity to operate, when amortized over a few years, LED fixtures are quite a bit less expensive, over all, when compared to their incandescent cousins.","domain":"optical_engineering"}
{"url":"http://marketplace.preworn.co.uk/mens/buy-uv-laser-marking-machine.html","date":"2020-09-23T07:40:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400209999.57/warc/CC-MAIN-20200923050545-20200923080545-00257.warc.gz","language_score":0.8507455587387085,"token_count":522,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__219114209","lang":"en","text":"Desktop UV laser marking machine\n1. The UV laser generator is high integrated, has superior laser beam and uniform power density. Output laser power is stable. This design highly increase the machine鈥檚 anti-reflection ability with optical isolator, be able to mark on most high reflective materials such as aluminum, copper, gold and silver without the shadow and virtual open phenomenon.\n2. Adopts advanced digital high speed scanning galvanometer, quick speed without deviation, small volume, good stability, and performance reached the international advanced level.\n3. Adopt the embedded operating system, which the performance is leading domestic peers, good touch interface and powerful control system, can meet the demand of most industry application process in market.\n4. High efficiency for photoelectric conversion, simple operation, Compact in structure, support harsh working environment, no consumables.\n5. Desktop fiber laser marking machine is a standard type in the whole fiber laser marking machine series. Its classical design stands popular since laser marking machine鈥檚 birth.\n6. Modular design, separate laser generator and lifter, more flexible, can mark on bigger area and complicated surface. Air-cooled inside, small occupation, easy to install.\nLaser TypeUV Lasers\n鈥?Our History Huae has been developing and manufacturing industrial as well as laboratorial thermo equipment for different applications since its establishment. Huae offers a wide range of furnaces worldwide and has been highly appreciated by customers…\nOur History Established in 2014, Xiamen Better Silicone has accumulated years in mold tool and rubber and plastic products production. Our company has passed the international quality management system of ISO9001. Using ERP system to schedule production…\nWE ARE THE STOCKISTS OF ALL LEADING BRANDS OF INDUSTRIAL VALVES. OUR RANGE OF PRODUCTS ARE AS FOLLOWS:- 1) GATE VALVE 2) GLOBE VALVE 3) SLUICE VALVE 4) SLEEVE VALVE 5) BALL VALVE 6) PLUG VALVE 7) CHECK VALVE 8) ROTARY VALVE 9) BUTTERFLY VALVE 10) FOOT…\nOur History: Guangzhou chnhc Co.,Ltd which established in 2008, is one of the largest automobile care and maintenance equipment manufacturers and suppliers in Guangzhou ,China. Our Factory 1.Guangzhou chnhc Co.,Ltd Covers an area of 6,700 square…","domain":"optical_engineering"}
{"url":"https://www.countryattire.com/oakley-conductor-8-mens-sunglasses/ca5037280.html?colour=Polarised+++Matte+Black+~+Black+Iridium","date":"2020-06-03T09:43:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347432521.57/warc/CC-MAIN-20200603081823-20200603111823-00148.warc.gz","language_score":0.7843264937400818,"token_count":173,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__64299456","lang":"en","text":"Polarised Matte Black ~ Black Iridium\nItem code: 82877\nOut of stock\nCombining clean lines with classic Oakley styling, the Oakley Conductor 8 Sunglasses are expertly crafted from a lightweight C-5™ alloy design with a Three-Point fit, integrated spring hinges, and patented Unobtainium™ earsocks for optimum comfort. The sunglasses feature high definition optic lenses for less distorted vision and a true visual image, strong glare-reducing power, an Oakley Plutonite™ filter 100% UVA, UVB and UVA ray protection, the ability to block out harmful blue light up to 400nm, and 8.75 base lens curvature for extended peripheral vision. The Oakley Conductor 8 Sunglasses are complete with signature branded detailing and include a protective ellipse case for safe storage.","domain":"optical_engineering"}
{"url":"https://www.shopflys.com/products/1-pair-m1-motorcycle-rectangular-lens-spotlight-external-work-lightyellow-white","date":"2023-02-05T12:07:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500251.38/warc/CC-MAIN-20230205094841-20230205124841-00833.warc.gz","language_score":0.8749085068702698,"token_count":323,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__195138130","lang":"en","text":"2. LED chip light type: concentrating\n3. Color temperature: 6000K/3000K\n4. Brightness: 6000LM\n5. Power: 60W\n6. Material: aviation aluminum alloy\n7. Life: more than 50000H\n8. Voltage: wide voltage 9-30V\n9. Working temperature: low temperature -40 to high temperature 85 degrees Celsius\n10. Waterproof rating: IP68\n11. Using the included adjustable mounting accessories, the LED spotlight can be adjusted to approximately 90 degrees. This makes it easy to change the direction of the beam. After installation, the bulb can slide\n12. The die-cast aluminum housing can withstand harsh environments, with strength and durability. Upgraded bifocal lens The special bifocal shape design can help refract and focus the light, and significantly improve the focusing effect\n13. In order to obtain a better heat dissipation effect, our LED light bar adopts aviation aluminum alloy as the shell, which can achieve good heat dissipation effect and heat sealability.\n14. This LED spotlight bar is compatible with almost all motorcycles, jeeps, 4x4, trucks, tractors, trailers, golf carts, pickup trucks, cars, SUVs, ATVs and boats. In addition, there are many indoor and outdoor uses: garden lighting, backyard lighting, reversing lights, off-road lighting, reversing lights, architectural lighting, etc.\nPayment & Security\nYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.","domain":"optical_engineering"}
{"url":"https://www.burrosabio.com/en/why-is-the-sky-blue/","date":"2018-02-21T20:47:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813803.28/warc/CC-MAIN-20180221202619-20180221222619-00414.warc.gz","language_score":0.9620101451873779,"token_count":527,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__6650215","lang":"en","text":"Why Is The Sky Blue\n“Because that blue sky that we all see is neither sky nor blue. What a shame that such beauty is not real!” These beautiful verses by Lupercio de Argensola are usually quoted as an example of the baroque disappointment for nature’s makeups. It was certainly during the 17th century when the man discovered with astonishment the reason for the color of the sky, that up to then had been believed to be compact and immutable.\nThe color theory developed by Newton explains that white light is formed by the combination of all the colors of the rainbow.\nWhen we see an object of one color, it is because it reflects a certain wavelength and absorbs the rest, or which is the same thing, it reflects that color while absorbing the others.\nAt one end of the visible spectrum is red, whose wavelength is longer and therefore the lower frequency; because of this we call waves with a lower frequency “infrared”.\nAt the other end, violet, whose wavelength is shorter and therefore the highest frequency; therefore we call wavelengths with a higher frequency “ultraviolet”. But the sky, besides light composition, owes its color to another important factor: the atmosphere.\nIn effect, the light of the sun has to cross the atmosphere in order to reach us, and during that journey it looks altered. Minute particles of dust and water suspended in the air are smaller than the wavelengths of visible light, they do not have enough wave size to repel, but to divert slightly from its original path.\nThis is known as “dispersion”. And since the wavelengths on the blue end of the spectrum are shorter, they are dispersed to a greater degree than the rest of the colors, and this gives our sky its blue color.\nTo be exact, we need to add a third factor to determine why we see the sky as blue, and that is our own physiology. It happens so that, being consistent with what we have just said, the sky should be violet wavelengths as this color is still lower than in the blue.\nIf we see it violet is because our eyes capture the color in their own way, since they have cells sensible to only trhee colors: red, green and blue, and we perceive the rest of the colors by combination, that is, because they excite several of these three kinds of cells at the same time.\nTherefore, as our sight is more sensible to the colour blue than to violet, it is that colour we observe when gazing at the sky.","domain":"optical_engineering"}
{"url":"https://putainsieben.com/sigma-18-300mm-f3-5-6-3-dc-macro-lens-review/48z3808a6tg","date":"2022-05-24T11:47:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662572800.59/warc/CC-MAIN-20220524110236-20220524140236-00414.warc.gz","language_score":0.8995302319526672,"token_count":5171,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__136324744","lang":"en","text":"Here are the details on each of Sigma's lenses for Nikon DX cameras: Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye. Sigma 8-16mm f/4.5-5.6 DC HSM. Sigma 10-20mm f/3.5 EX DC HSM. Sigma 10-20mm f/4-5.6 EX DC HSM. Sigma 17-50mm f/2.8 EX DC OS HSM. Sigma 17-70mm f/2.8-4 DC Macro OS HSM C Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Nikon F. Great zoom range. 13.9 x. Great telephoto lens. 250 mm. More advanced image stabilization. Sigma OS. Zoom range Sigma Optical Stabilization (OS) helps compensate for camera shake by reducing vibration in the DSLR camera system while taking a photograph. Some lenses with Sigma image stabilization include the 24-105mm F4,150-600mm and 70-200mm 2.8 The bottom line: the Sigma 18-35mm f/1.8 DC HSM Art lens is awesome for anyone using a DX or APS-C camera who shoots landscape photography, real estate photography, astrophotography, or anything else that can benefit from a wide angle Browse Sigma lenses including over 45 camera lenses available for most major mounts including Sigma, Canon, Nikon, Sony, Pentax and Micro Four Thirds Systems. Find the right DSLR lens for every photographic opportunity\nLaunched about 10 years ago, this was Sigma's second DX format 10-20mm zoom lens. It's larger than the original lens, but has a constant rather than variable aperture rating. In this respect, it's similar to the Tokina 11-20mm lens, although the Sigma is two-thirds of an f/stop slower 6. Yes, Sony's Open E mount standard is very attractive to third party lens manufacturers for two reasons: easier to design (lowering costs) and easy to maintain as they are kept abreast of any changes to the specification enduring long term customer satisfaction. Sigma didn't offer any EF M lenses until way past critical mass (the M50 is a. Used Sigma 50mm f/1.4 DG HSM ART Lens for Sony Alpha & Minolta Maxxum DSLR Cameras (NOT E-Mount/Mirrorless) E. $579.00 $97/mo suggested payments with 6‑month financing The Sigma 300mm f/2.8 EX DG Autofocus Telephoto Lens for Sony Alpha & Minolta Maxxum Series is a high performance telephoto lens and, for the professional photographer, is an absolute requirement. With a fast telephoto lens suitable for capturing the fastest action, whether that is a local soccer game, high school basketball in a dimly lit gym.\nFTZ-Compatible Tamron Lenses ». According to Sigma, the following full-frame (FX) Sigma F-mount lenses work without issues on the FTZ adapter: 12-24mm f/4 DG HSM Art. 14-24mm f/2.8 DG HSM Art. 24-70mm f/2.8 DG OS HSM Art. 24-105mm f/4 DG OS HSM Art*. 60-600mm f/4.5-6.3 DG OS HSM Sports. 70-200mm f/2.8 EX DG OS HSM APO F-Mount Lens/DX Format. 75-150mm (35mm Equivalent) Aperture Range: f/1.8 to f/16. Four SLD Elements, Three FLD Elements. Pairing a useful range of telephoto focal lengths with an especially fast design, this Nikon F-mount Sigma 50-100mm f/1.8 DC HSM is an Art-series zoom mixing impressive versatility with advanced optics Great-value option: Sigma 10-20mm f/3.5 EX DC HSM. For about the same cash outlay as Nikon's budget AF-P DX 10-20mm f/4.5-5.6G VR lens, this Sigma is a more refined option. It's got better build.\nSigma Lenses for Nikon F Mount. Weatherproof - Seals protect from dust, humidity and light splashing. Macro capable with reproduction ratio of 1:1 or greater. Fixed focal-length. No zoom. Rectilinear are normal lenses that show straight lines as straight lines. Fisheye Lens The DX-format camera can use both types of lenses (DX and FX) since the non-DX lens image circle is larger than needed on a DX-format camera. On an FX-format camera with a DX lens mounted, the camera will automatically engage its built-in DX crop mode, thus recording an image only from the center section of the sensor The lens features HSM, which is Sigma's version of ultra-sonic drive. Thanks to that, the lens is fully compatible with all current Nikon DSLRs, including the entry-level DX models. Typical for many HSM lenses, the AF is virtually silent and very fast. The Sigma is a G-type lens and thus does not offer an aperture ring Some DX / APS-C lenses are known to work quite well on full-frame cameras, with some vignetting that can be removed in the corners (the Nikon 35mm f/1.8G is a good example of such lens). The Sigma 18-35mm f/1.8G is not a good candidate to be mounted on a full-frame camera, especially at the shortest end of the focal length Best DX standard zoom: Sigma 17-50mm f/2.8 EX DC. The typical DX standard zoom covers a 17-50mm focal length (equivalent 26-75mm), offering a versatile wide-angle to short-telephoto focal length in a single lens. This makes it a super-convenient choice for a range of photographic types such as press, events, weddings, portraits, and general use\nSigma 10-20mm f4-5.6 EX DC HSM AF APS-C Lens W/ Original Box Nikon DX F-mount. $198.00. $8.85 shipping. or Best Offer Sigma 18-300mm f/3.5-6.3 DC Macro OS HSM Contemporary Lens for Nikon F. B&H # SI1830035N MFR # 886306. 184 Reviews. Key Features. F-Mount Lens/DX Format. 27-450mm (35mm Equivalent) Aperture Range: f/3.5 to f/22. Four FLD Elements and One SLD Element. Available in other Styles, Configurations & Kits\nLet's speculate based on nikonrumours news about possible Sigma glass for Z-system DX in 2021. Which lenses would you like to see from Sigma for Z-mount DX body? My choices would be: 1. Sigma ART 17-50mm f/2.8 (up to 500 grams, fast and quiet AF, VR) alternatively I could even pay more for something like 16-35mm f/2.0 but such would probably. 00-85126-20160-9 (SIGMA 10-20mm F4-5.6 EX DC) * All figures calculated by SIGMA SA-mount. * DC lenses have an image circle that covers APS-C size image sensors. Not for use on digital cameras having image sensors larger than APS-C size or on 35mm or APS film cameras, as vignetting will occur. The angle of view varies depending on which camera. Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary Nikon F. Great telephoto lens. 600 mm. More advanced image stabilization. Sigma OS. Max focal length. 600 mm The Tokina 11-16mm f/2.8 AT-X Pro DX Lens' f/2.8 aperture is very nice. And the Sigma 10-20mm f/3.5 EX DC HSM Lens is another fine option from the list. My copy of this lens needs serviced for correction of the left-side softness issue, but I do expect Sigma to make this lens right and for this to be a good lens overall\nLooking at lenses specifically designed for the smaller DX sensor, we see Sigma taking three of the four top spots. Its stunning 18-35mm f/1.8 ultra-fast zoom deservedly comes out on top, with the 30mm f/1.4 fast normal prime a close second, and the versatile 17-50mm f2.8 optically stabilised zoom also acquitting itself highly The 35mm f/1.8 is a tougher, faster lens than the basic 18-55mm zoom. Nikon 35mm f/1.8 DX (52mm filters, 6.95 oz/197.0g). This 35/1.8 is an ultra sharp and ultra fast normal lens. It's often the only lens I carry. The Dream Team top. Basics The Team Wide Normal Tele. 18-200 18-300 28-300 Compare Gotchas Nikon 17-55mm f/2.8G ED-IF AF-S DX Nikkor Zoom Lens. Buy it on Amazon.com. This lens is the best among Nikon DX lenses. This Nikon f2.8 3.2x zoom lens is primarily for use with Nikon DX Format. Ultra high speed for auto focus; High accuracy and quiet operation; Dust and waterproof rubber; Nikon AF-S DX NIKKOR 18-300mm f/3.5-5.6G ED Zoom Len The Sigma 85mm f/1.4 DG HSM Art lens for Nikon DSLR cameras can be used for any photographic needs but it's a perfect lens for portrait photography.Making use of a large f/1.4 aperture, this lens allows you to capture images with a shallow depth of field and attractive bokeh effect. Its optical design includes an exclusive low-dispersion glass element, one aspherical element, and two Special. . The FX sensor, measuring 24x36mm, is roughly equivalent to the size of the 35mm film frame. The DX sensor is smaller, measuring 15.8x23.6mm. DX-NIKKOR lenses are engineered and optimized for use on Nikon DX-format D-SLRs and are designed to cover the smaller image area of the DX sensor\nThe Sigma 50mm f/1.4 is a great lens, but heavy and expensive and perhaps a bit too much for many Nikon DX camera owners. For budget portraiture on a DX format body, look no further than this Nikon 50mm f/1.8 The Sigma 35mm f/1.4 DG HSM has fantastic optics — as good as the Canon EF 35mm f/1.4 L and Nikon 35mm f/1.4 G, and with less distortion — but its mechanics and potential camera incompatibility are why you pay less than for the professional Nikon or Canon lenses. Autofocus performance top. AF/MF Switch, Sigma 35mm f/1.4 DG HSM Sigma 180mm f/3.5 EX DG lens; Sigma 200-500mm f/2.8 EX DG lens; Sigma 300-800mm f/5.6 EX DG HSM lens; S. Sigma MC-11; Sigma MC-11 SA-E This page was last edited on 12 July 2015, at 05:58 (UTC). Text is available under the Creative Commons Attribution-ShareAlike License; additional. Read our detailed comparison of the Sigma 10-20mm F3.5 EX DC HSM vs Nikon AF-P DX Nikkor 10-20mm F4.5-5.6G VR to find out their strengths and weaknesses, and decide which one to choose\nThe Tamron 90mm f/2.8 Di Macro is a great lens, but the Sigma 70mm f/2.8 beats it handily in the sharpness department, particularly in sharpness uniformity at f/2.8. The Sigma also edges out the. After-all, this lens bears the designation of a macro lens so let's talk a little about how it truly performs as such. Dedicated macro lenses produce images with a magnification factor of around 1.0 or 1.1x (meaning the subject is life size on the camera sensor). The Sigma 18-300mm has a maximum magnification factor of 1.3x An advantage held by the Sigma 105mm f/2.8 EX DG OS HSM Macro Lens over many competing lenses with similar focal lengths is that it is compatible with extenders. Sigma's 1.4x and 2x DG extenders to be specific. With the 1.4x mounted, this lens becomes a 147mm f/4 OS lens and it becomes a 210mm f/5.6 OS lens with the 2x behind it It's vital to have a sturdy tripod, especially while shooting with a telephoto lens. There's a lot of weight to a telephoto lens — such as a Sigma 60-600mm Sports. Sometimes you could be shooting at a long exposure and a sturdy tripod will help prevent motion blur. The Right Lens. What is the right lens Sigma 18-200mm F3.5-6.3 DC is an Auto Focus (AF) SuperZoom lens with APS-C / DX max sensor coverage and it is designed to be used with Nikon F (DX) mount cameras. Lenses in Nikon F (DX) Mount with Same Focal and Aperture Range. Model. Coverage\nThe Sigma 150mm f/2.8 competes in a tough arena, there are a lot of very high quality lenses in this focal length range on the market, but this Sigma seems to compete very strongly. In the Canon. Nikon DX/Sigma DC/Tamron Di II/Tokina DX: Denotes a lens that is designed for APS-C DSLR sensors. Use of this lens on a full-frame (FX) sensor will likely cause vignetting. All full-frame Nikon DSLRs are able to detect DX lenses and crop the image accordingly by default. However, the viewfinder view is likely to be constricted Sigma 18-200mm f/3.5-6.3 DC Macro HSM Lens for Sony DSLRs Manufacturer's Description: The smc P-FA Zoom 28mm~105mm f/3.2~f/4.5 AL [IF] standard zoom lens is the perfect standard zoom lens for both beginning and advanced photographers The Sigma 35mm f/1.4 ART lens is more than capable of shooting beautiful portraits and landscapes and at a fraction of the price. Right now, the Nikon 35mm f/1.4 lens is about $1,800 vs. less than $700 for the Sigma. So you're paying almost three times the price for the native Nikon lens In addition, Sigma recently began offering a bundle for their 150-600mm with a 1.4x teleconverter. Since I shoot mainly with a Nikon D750 full frame, the lens bundled with a 1.4x TC interested me very much. The 1.4x TC makes the 600mm, an 840mm on a full frame camera, so in theory this allows my full frame camera to shoot wildlife with nearly.\nA capable ultra-wide lens for DSLR cameras with APS-C sized sensors.Announced at PMA 2010 in February, the new Sigma AF 8-16mm f/4.5-5.6 DC HSM lens is designed specifically for DSLR cameras with APS-C size image sensors and boasts the widest angle of view of its type. It covers angles of view equivalent to a 12-24mm lens in 35mm format (12.8-25.6mm on Canon cameras) and features a number of. 5. Best Alternative to 16-50mm Kit Lens. You can also get Sigma 18-35mm Lens if you want to get Prime lens capability in a zoom lens. Sigma 18-35mm lens features 3 prime lenses inside. The 18mm F1.8, 24mm F1.8, and 35mm F1.8. 18-35mm lens image quality is outstanding and it looks like someone added Zoom ring to a prime lens Sigma's 50mm f/1.4 DG HSM Art lens is one of the best in the lineup. With its extremely wide aperture, the Sigma 50mm boasts of excellent performance, beautiful Bokeh, sharp images, and an SLD (special low dispersion) glass. This Sigma Art lens is ideal for pairing with any pro-level DSLR camera and is often used for events, wedding, portrait.\nPrime lenses. We've updated the optical performance data on a total of 78 prime lenses based specifically on the 45.7MP Nikon D850 sensor. The best performers are the Sigma 85mm F1.4 DG HSM A, with an excellent 53 points, and the Zeiss Otus 1.4/55 ZF.2 with 52. These are, incidentally, also the highest system (lens and camera) ratings we've. 35mm prime lenses don't always get the same popularity as the 50mm lenses. The Nikon AF-S DX Nikkor 35mm 1.8G Lens can make you change your mind. We consider it as one of the best lenses for Nikon D3500 because it offers a slightly wider angle but provides an f1.8 aperture perfect for blurring backgrounds and focusing on the subject. It has.\nPhysically, this DX-format lens is 50 per cent longer than its 40mm Nikon sibling. The minimum focus distance is more like that of FX-format 90-105mm macro lenses, at 29cm and unlike the Nikon. A Sigma lens with a Nikon FX mount. Can I Use DX Lenses on an FX camera? The short answer is yes: most DX lenses technically are compatible on FX cameras. However, only the center of the image will be recorded because the camera automatically selects a crop mode whenever a DX lens is attached. The result is a compromised image that is a.\nBest Lens For Wildlife Photography 1. Nikon AF-S DX NIKKOR 18-300mm f/3.5-6.3G ED Vibration Reduction Zoom Lens. The Nikon AF-S DX NIKKOR 18-300mm f/3.5-6.3G ED VR Zoom Lens offers superb clarity and versatility in one heck of a telephoto lens. Designed for cropped sensor cameras, it has an angle of view from 76 degrees to 5 degrees and a minimum focal distance of 1.6 feet A favorite among professional Nikon users, the Nikon AF-S FX NIKKOR 24-70mm f2.8E ED VR lens offers maximum versatility and image quality. With two Extra-low Dispersion (ED) elements and PGM aspherical lenses to avoid chromatic aberration, the Nikon AF-S 24-70 produces crisp, bright images at all focal lengths.The wide aperture guarantees great low light performance and thanks to the Vibration. The Nikon AF-S DX Micro Nikkor 40mm f/2.8G is the best macro lens for Nikon photographers who want a lightweight, compact macro lens for easy travel and quick close up photos. It has a minimum focus distance of 0.53 ft and a fixed focal length of 40mm, making it ideal for wildlife and nature photos, such as flowers and insects The Nikon 85mm f/3.5G ED VR AF-S DX Micro is a lens with a huge name for shooting small things ;-) It also happens to be the number one macro lens for Nikon DX format dSLRs. Sharp with built in image stabilization, the Nikon 85mm f/3.5G Micro is good value for money and gets the job done\nRaymond shares his experiment using DX kit lenses on the new full frame Nikon Z6 with the FTZ adapter!Find the Z6 here! https://amzn.to/2UEVGYLCheck out thes.. SIGMA 30mm F1.4 DC HSM, the large-aperture standard lens with an angle of view equivalent to 45mm on a 35mm camera, is a superb go-to lens for artistic photography on an APS-C format digital SLR Sigma 150-600mm f/6.3 DG OS HSM DG Contemporary Lens for Nikon 5 out of 5 stars (70) 70 product ratings - Sigma 150-600mm f/6.3 DG OS HSM DG Contemporary Lens for Niko Best Wide-angle Zoom Lenses for Nikon D7500 Sigma 18-35mm f/1.8 DC HSM Art ($799) Highly recommended!The first lens to buy for Nikon D7500.The Sigma 18-35mm 1.8 DC HSM Art lens is a new benchmark in photographic history and a must have for every camera bag, it is the first wide-angle to standard zoom lens to achieve a large aperture of 1.8.The Sigma 18-35mm f/1.8 Art is ideal for landscapes.\n6. Includes lens hood. Sigma 10-20mm F3.5 EX DC HSM. Tokina 11-16mm F/2.8 AT-X Pro DX II. It comes with a lens hood so that you don't have to buy it separately. These are used to block strong light sources, such as the sun, from the lens to prevent glare and lens flare. 7. Is a wide angle lens 3.has a silent focus motor built into the lens. Sigma 18-35mm F1.8 DC HSM A. Tokina 11-16mm F/2.8 AT-X Pro DX II. Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor. 4.Has full-time manual focus\nBest Third Party Lens. Sigma 18-35mm F1.8 Lens from Amazon & B&H. Sigma 18-35mm F1.8 lens is one of the best shooting lens available for Nikon DX format DSLRs, the lens features fixed F1.8 aperture and delivers exceptional image quality throughout the zoom range. The can be used for shooting events, landscapes or portraits . These Nikon D3400 lenses are our top choices for the year. A go-everywhere lens: Nikon AF-S DX NIKKOR 18-140mm. Compact all-in-one: Nikon AF-S NIKKOR 18-105mm VR Best Standard Zoom Lenses for Nikon D5600. Sigma 18-35mm f/1.8 DC HSM Art ($799): Highly recommended! The first lens to buy for Nikon D5600. The Sigma 18-35mm 1.8 DC HSM Art lens is a new benchmark in photographic history and a must have for every camera bag, it is the first wide-angle to standard zoom lens to achieve a large aperture of 1.8 It is a dedicated DX lens with a field-of-view equivalent to a 12-24mm full format lens. As such it can be regarded as an updated APS-C version of the full format Sigma AF 12-24mm f/4.5-5.6 EX DG HSM. Ultra-wide lenses with a bulb-like front element have not been very popular for a long while. After all it's not possible to mount front. The Sigma 8-16mm f/4.5-5.6 DC HSM for Nikon DX is an ultra-wide, rectilinear zoom lens for Nikon DX crop-sensor cameras. Key features include: Nikon DX crop-sensor only. Produces striking, extremely wide-angle images. Excellent sharpnes\nThe Sigma 50-100mm 1.8 DC HSM Art is a premium mid telephoto zoom lens designed for APS-C sized sensors. Part of the Sigma Global Vision Art Line, the 50-100mm 1.8 is the second lens to feature a 1.8 aperture all the way through it focal length and factoring in the APS-C increase, the lens covers a highly useful range of 75-150mm Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Canon Digital DSLR Camera Go to amazon.com Sigma 35mm F1.4 Art DG HSM Lens for Canon, Black, 3.7 x 3.03 x 3.03 (340101 Sigma 35mm f/1.4 Art. Price: $900. The Sigma 35mm f/1.4 is one of the best landscape lenses, with amazing sharpness and traditional focal length. Not only is the lens compatible with Nikon, Sony, and Canon, but it's cheaper than the lenses offered by those brands","domain":"optical_engineering"}
{"url":"https://www.rainfordsolutions.com/rainford-invest-in-a-new-state-of-the-art-fibre","date":"2021-01-15T14:19:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703495901.0/warc/CC-MAIN-20210115134101-20210115164101-00609.warc.gz","language_score":0.9255138635635376,"token_count":483,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__124700479","lang":"en","text":"Rainford invest in a new state-of-the-art fibre laser machine\nRainford Solutions, a world-class manufacturer of high quality electronic enclosure protection solutions is pleased to announce its investment in a new Amada FOL3015 AJ fibre laser cutting machine, which has been commissioned at its UK manufacturing facility in St Helens, Merseyside.\nCutting edge technology\nThe new beam source AFL (Amada Fibre Laser) is packed with cutting edge technology, which delivers high quality laser cutting at superfast speeds, increasing flexibility and versatility. With an increased cutting range, faster material processing and lower running costs all makes this an outstanding machine for Rainford coupled with a reliable and efficient laser beam delivering a superior edge quality.\nThe production is fully automated with no operator intervention required, and the machine boasts automatic loading and unloading which reduces strain on machine operators, resulting in increased productivity. Additional benefits of the new Amada FOL3015 AJ machine includes low energy consumption, long maintenance cycles and easy operation with touch screen control.\nRainford are continuously looking for ways to improve the business, this investment demonstrates their commitment to an ongoing investment strategy. By improving its existing capabilities and service offering Rainford’s board of director’s aim is to focus on the best cutting edge technology available within the marketplace. In return Rainford can produce a higher class of products providing perfectly synchronised components for optimum performance to give its customers a highly competitive advantage using the latest cutting technology in laser processing.\nCommenting on the investment of the new Amada fibre laser machine, Paul Redshaw, Sales and Marketing Director for Rainford Solutions said: “We are extremely delighted to have invested in a world-class fibre laser cutting machine which not only enables us to continue to provide value added services to our customers but also promotes our technical and competitive edge and illustrates that everything we do is to the best of our ability to continue to provide a world-class service.”\nWith over 30 years of engineering expertise and continued investment into cutting edge manufacturing methods, Rainford continues to provide high quality products to its customers without having to compromise on quality. Excellent service support, ISO 9001 certified and an outstanding reputation have also been contributing factors to the long-term success of Rainford Solutions.\n- Please complete our Enquiry Form for further information on our laser cutting capabilities and product range","domain":"optical_engineering"}
{"url":"https://news.vice.com/story/scientists-have-discovered-fluorescent-frogs","date":"2017-06-28T00:20:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128321961.50/warc/CC-MAIN-20170627235941-20170628015941-00414.warc.gz","language_score":0.9485303163528442,"token_count":228,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__192601591","lang":"en","text":"Scientists have discovered fluorescent frogs\nScientists in Argentina have discovered the world’s first fluorescent frog — by accident.\nResearchers at the Buenos Aires Natural Sciences Museum were studying the polka-dot tree frog, which is usually dull, when they noticed that it glowed after they shined ultraviolet light on it.\n“We couldn’t believe it,” study co-author Julián Faivovich, a researcher who worked on the project from the University of Buenos Aires, told the journal Nature. “I’m really hoping that other colleagues will be very interested in this phenomenon, and that they will start carrying a UV flashlight to the field,” he said.\nFluorescence is the ability to absorb light at short wavelengths and re-emit it at longer wavelengths. Other animals such as jellyfish, scorpions, and even birds have similar glowing qualities, but it’s “unprecedented” in amphibians, according to the researchers.\nThe team is still trying to determine whether this quality comes from the frog’s biology or its habitat.","domain":"optical_engineering"}
{"url":"https://www.jsww.net/tech/shownews.php?id=81&lang=en","date":"2020-01-20T22:10:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250599789.45/warc/CC-MAIN-20200120195035-20200120224035-00449.warc.gz","language_score":0.9296921491622925,"token_count":216,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__92594578","lang":"en","text":"What kind of Teflon mesh belt is needed for UV curing machine\nUV curing machine is also known as UV curing furnace. It uses high temperature ultraviolet light to cure the resin. Due to the characteristics of ultraviolet light, the brown Teflon mesh belt often turns into white after the use, and the surface is coated with Teflon. The layer will also gradually decompose and produce harmful substances, so the brown Teflon mesh belt cannot be used.\nIn response to the characteristics of ultraviolet light, Taixing Kaipeng added black pigment to resist ultraviolet rays when it was used to produce Teflon mesh belt. Antistatic material was added to prevent static electricity, and the anti-ultraviolet effect was remarkable. The antistatic coefficient was uniform and stable, and the effect was good.\nTherefore, UV UV curing machines generally use black Teflon mesh belts.\nTip: Tip: This article is automatically translated by Google, the original Chinese version: https://www.jsww.net/tech/27-cn.html","domain":"optical_engineering"}
{"url":"https://bowarchery.com/can-binoculars-damage-your-eyes/","date":"2023-03-26T00:29:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945376.29/warc/CC-MAIN-20230325222822-20230326012822-00561.warc.gz","language_score":0.8946473002433777,"token_count":3327,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__243991812","lang":"en","text":"Can Binoculars Damage Your Eyes?\nBinoculars are a great tool for bird watching, stargazing, and other activities that require long-range vision. But can they damage your eyes? The short answer is yes, binoculars can damage your eyes if you use them improperly. This article explains about how binoculars damage your eyes that can be used as references when want to know about binoculars.\nBest crossbow in the market is BARNETT Whitetail Hunter STR Crossbow, Mossy Oak Bottomland, Standard 4×32 Scope\nBest recurve bow in the market is Southwest Archery Spyder XL Recurve Bow\nThe risk of eye damage increases when you use higher magnifications, so it’s important to be aware of the potential risks before you start using binoculars.\nThere is a lot of debate on whether or not binoculars can damage your eyes. Some people say that they can, while others claim that they cannot. So, what is the truth?\nCan binoculars actually harm your vision? The short answer is yes, binoculars can damage your eyes if you use them improperly. However, if you use them correctly and take proper precautions, then they will not cause any harm to your eyesight.\nHere are some tips to follow if you want to avoid damaging your eyes when using binoculars: -Make sure that the lenses are clean before using them. Dirty lenses can magnify the sun’s rays and damage your retina.\n-Wear sunglasses when using binoculars in bright sunlight. This will help protect your eyes from the harmful UV rays. -Do not look at the sun directly through the binoculars.\nThe intense light can damage your retina permanently.\nCan binoculars damage your eyes? | Optics Trade Debates\nHow Close to Your Eyes Should You Hold Binoculars?\nAssuming you are holding binoculars up to your eyes, the lenses should be about one inch from your eyeballs. If the lenses are too close or too far away, it will be difficult to see anything through them.\nDo You Need to Wear Glasses When Using Binoculars?\nAssuming you are referring to corrective lenses:\nYes, if you wear glasses you will need to wear them when using binoculars. This is because the eyepieces in binoculars are fixed and cannot be adjusted to accommodate for different vision needs.\nSo, if you have poor vision and normally wear contacts or glasses, you will need to keep wearing them when using binoculars. There are some workarounds that people with glasses have used in order to still be able to use binoculars without having to constantly take their glasses on and off. One solution is called the Diopter Adjustment Knob which can be found on most binoculars.\nThis knob adjusts one side of the lens slightly differently than the other in order to help people with varying degrees of vision discrepancies between their left and right eye. Another workaround is wearing contact lenses instead of glasses when using binoculars. This option might not work for everyone though since it takes a bit of time for your eyes to adjust when switching from corrective lenses to none at all.\nIs Eye Relief Important in Binoculars?\nYes, eye relief is important in binoculars. Here’s why:\nWhen you look through binoculars, your eyes need to be a certain distance away from the lenses in order to see the full field of view.\nThis distance is called the “eye relief.” If the eye relief is too short, you’ll have to move your head closer to the binoculars in order to see the full image, and this can be uncomfortable. On the other hand, if the eye relief is too long, you’ll see black circles around the edges of the image (these are called “vignetting”).\nThe ideal eye relief for most people is between 15mm and 20mm.\nDoes Looking at Electronics Damage Your Eyes?\nIt’s no secret that staring at screens all day can be tough on your eyes. But just how bad is it, really? We talked to an expert to find out if using electronic devices is actually damaging our peepers.\nHere’s what we found out: While there isn’t enough evidence to say that looking at screens definitely causes long-term damage to your eyesight, there are some potential risks associated with extended screen time. These include: Eye fatigue: When you stare at a screen for hours on end, your eyes can become fatigued, causing dryness, redness and irritation.\nIf you experience these symptoms frequently, you may have something called computer vision syndrome (CVS). CVS is a temporary condition that can be alleviated by taking breaks from screens and practicing good eye hygiene (more on that below). Blurred vision: prolonged screen time can also cause blurred vision.\nThis is because the eye muscles can become strained from constantly adjusting the focus from near objects (like screens) to faraway objects (like the rest of the room). If you find yourself squinting or rubbing your eyes frequently when using electronics, it’s probably time to take a break. Dry eye: Staring at screens can lead to dry eye because it decreases blink rate.\nblinking helps spread tears over the surface of the eye, keeping them lubricated. When you don’t blink as often, your tears can evaporate too quickly, leading to inflammation and discomfort. To combat this problem, try the 20-20-20 rule: Every 20 minutes, take a 20-second break and look at something 20 feet away.\nBinocular Vision Dysfunction\nBinocular vision is the ability to see an object with both eyes at the same time. The brain uses the information from both eyes to produce a single, three-dimensional image of the world around us.\nPeople with binocular vision dysfunction (BVD) have trouble seeing objects in 3D.\nThey may see two images instead of one, or their brain may have difficulty combining the information from both eyes into a single image. As a result, people with BVD often experience headaches, eyestrain, and fatigue. There is no cure for BVD, but glasses or contact lenses can help some people by correcting any refractive error that may be contributing to the problem.\nIn some cases, prismatic lenses can be used to realign the images seen by each eye. However, these treatments only provide temporary relief and do not address the underlying cause of BVD. If you think you might have BVD, make an appointment with your eye doctor for a comprehensive exam.\nBinoculars near Me\nIf you live in or near a big city, chances are there are several places to buy binoculars. However, if you don’t live near a big city, or if you’re looking for a specific type of binocular, it can be tricky to find what you’re looking for. Here are a few tips on where to look for binoculars:\n– Online retailers: There are many online retailers that sell binoculars. If you know what type of binocular you’re looking for, this can be a great option. You’ll often find better prices online than you would in brick-and-mortar stores.\n– Local sporting goods stores: Many sporting goods stores sell binoculars. This is especially true if the store specializes in hunting or fishing gear. – Online classifieds: Sites like Craigslist and eBay can be great places to find used or vintage binoculars.\nJust be sure to check the seller’s feedback before buying anything!\nBest Binoculars for the Money\nWe all know how important it is to have a good pair of binoculars. Whether you’re an avid birdwatcher, hunter, or nature lover, having a quality pair of binoculars can make all the difference in your outdoor experience. But with so many different brands and models on the market, it can be hard to decide which ones are right for you.\nThat’s why we’ve put together this guide to help you find the best binoculars for the money. There are a few things you’ll want to keep in mind when shopping for binoculars. First, consider what you’ll be using them for most often.\nIf you’re primarily interested in birdwatching, then you’ll want to look for a pair that has good light gathering capabilities and produces clear images. For hunters and other outdoor enthusiasts, durability and low-light performance may be more important than image quality. Another thing to think about is magnification power.\nMost binoculars have somewhere between 7x and 10x magnification, but if you know you’ll be doing a lot of long-distance viewing, then you might want to opt for a higher power pair. Just remember that higher magnifications also tend to produce shakier images, so they’re not always ideal for everyday use. Finally, don’t forget to factor in price when making your decision.\nBinoculars can range from less than $100 to several thousand dollars, so it’s important to find something that fits your budget. Luckily, there are plenty of great options at every price point. Now that you know what to look for, we hope our guide helps you find the best binoculars for the money!\nNo, binoculars cannot damage your eyes. However, if you stare at the sun through binoculars for an extended period of time, you could damage your eyesight.","domain":"optical_engineering"}
{"url":"http://szyongnuo.en.alibaba.com/product/60552824954-212858278/YONGNUO_YN1200_led_video_light_led_camera_video_light.html","date":"2019-03-25T18:11:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912204086.87/warc/CC-MAIN-20190325174034-20190325200034-00188.warc.gz","language_score":0.8611400127410889,"token_count":177,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__127316055","lang":"en","text":"YN1200(5500k/3200-5500k for option) YN1200(white color5500k) is formed by 1200 lamp beads with 5500k color temperature. YN1200(bi-color 3200-5500k)is formed by 600 lamp beads with 3200-5500k color temperature and another lamp beads with 5500k color temperature. The lamp beads adopts extra-large luminous chips, with higher brightness in same energy consumption; Adopts the double encoder digital dimming mode; equipped with the fan-cooled radiator thus without problem for long operating time; Adopts the magnet drawing soft light panel, which is convenient and efficient.; Equipped with mobile APP wireless remote system and 2.4G wireless remote control system; Equipped with 8 channels grouping function. High practicability and simple operation.","domain":"optical_engineering"}
{"url":"http://theapplepips.com/iphone-8-said-to-feature-next-gen-3d-laser-technology/","date":"2017-07-27T06:38:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549427749.61/warc/CC-MAIN-20170727062229-20170727082229-00592.warc.gz","language_score":0.8935674428939819,"token_count":131,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__220828335","lang":"en","text":"Citing a source familiar with Apple’s plans, Fast Company reports that Apple’s iPhone 8 will incorporate an advanced system of 3D lasers on the back designed to enhance the user experience when running augmented reality apps. The 3D lasers will reportedly work in union with the iPhone 8 camera and will provide improved depth detection along with improved autofocus functionality when taking photos.\nTrending right now:\n- The new Google service that can back up your entire computer is now live\n- Amazon wants to give you $10 for free. You should take it.\n- Verizon wasn’t hacked, but change your PIN right now","domain":"optical_engineering"}
{"url":"https://sunlightreadablelcd.wordpress.com/","date":"2017-04-25T14:22:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120461.7/warc/CC-MAIN-20170423031200-00145-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8356478214263916,"token_count":619,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__27741671","lang":"en","text":"Transflective sunlight readable displays:\nAt i-Tech Technology, we have TFT LCD with reflective mode of illumination without any compromise on its transmissive illumination. The modified LCD reflects the ambient light beams, passing the LCD cell, as its illumination. It utilizes the reflected light beams as its illumination. So, more the light, more the illumination of LCD. The resultant display of LCD is clear and. viewable even if the screen faces direct sunlight.\nOptical Bonding sunlight readable displays\ni-Tech Optical Bonding process produces an optical bond between any display cover glass or touch panel, and any size LCD.\nUtilizing advanced proprietary optical bonding technology, i-Tech overcomes optical challenges for display product manufacturers at an affordable price.\nThe exclusive Optical Bonding process from i-Tech provides a significant reduction of ambient light reflections at an affordable price, compared to other display enhancement technologies.\nOptical Bonding seals either a top cover glass or touch screen directly to the face of the display bezel. Our bonding process eliminates the air-gap between the display and the cover glass, vastly reducing reflective light, which causes visual washout of the display image\n• Optical Bonding provides the best reduction of ambient light washout of any commercially available enhancement technology.\n• Optical Bonding has a lower cost than most other competing technologies.\n• Optical Bonding offers superior ruggedization, enhancing the display durability under vibration, shock and other environmental extremes.\nOptical Bonding Technology\nUnderstanding and controlling reflected light will dramatically improve the performance of a display in any ambient lighting condition. Sunlight view-ability of a display depends on the differences between “lumination” and “illumination” of the display. The lumination of the display is its brightness. A display’s brightness, typically referred to as a Nit (Candela per meter/2) is the amount of light energy coming out of the display. Illumination is the amount of ambient light shining onto a display.\nThis combination reduces the total reflection of the display and front cover glass to less than 2% of the ambient light.\nAt 500-800 nits brightness, most displays will be completely sunlight viewable.\nAnti-Reflection & Anti-Glare Protection Glass Coating Technology:\nThe anti-reflective coatings on the protection glass have excellent performance in tough ambient light conditions.\n• Anti-reflective (AR) coated protection glass can minimize mirror image and maximize transmittance\n• Anti-glare (AG) coated protection glass can scatter light directed on the surface and soften the image of direct light sources visible in the reflection of the viewing area\n• With two side AR and one side AG coated glass are suggested to provide the best visibility Applications\n• Exhibition Signage\n• Outdoor Kiosks\n• Public Information POS\nProducts use this technology\nThese coating glass solutions we provided at i-Tech Technology, are now available for full range displays from 6.4″ to 37″ By customized request.","domain":"optical_engineering"}
{"url":"http://en.yawei-cky.com/about.html","date":"2023-12-08T19:58:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100769.54/warc/CC-MAIN-20231208180539-20231208210539-00137.warc.gz","language_score":0.9131557941436768,"token_count":251,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__221414777","lang":"en","text":"Located on the scenic side of Taihu Lake, Jiangsu Yawei Chuangkeyuan Laser Equipment Co., Ltd. was founded in 2008 and is a wholly-owned subsidiary of Jiangsu Yawei Machine Tool Co., Ltd. (stock name: Yawei Stock, stock code: 002559). As a subbrand of Yawei, it is a high-tech enterprise specializing in R & D, production and sales of laser tube cutting equipment and 3D processing equipment (cutting, welding, cladding, quenching, etc.).\nThe company was founded in\nThe registered capital is\nThe company focuses on the system integration and technical services of laser equipment with combination of the laser processing technology and modern CNC know-how, including laser cutting system, laser welding system, laser cladding system and laser quenching system etc. It has established long-term and stable partnership with research institutes such as Suzhou University and Jiangnan University, providing users with complete laser processing solutions and corresponding supporting facilities, which are widely used in rail transit, automobile and parts, engineering machines, military ships, instrumentation, new energy, electronic communication, aerospace, pharmaceutical, food packaging, elevators, decoration, professional sheet metal and other industries.","domain":"optical_engineering"}
{"url":"https://view.ceros.com/acuity-brands/hazardous-hero-1-2-1?heightOverride=550","date":"2023-06-02T08:22:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648465.70/warc/CC-MAIN-20230602072202-20230602102202-00666.warc.gz","language_score":0.9463762640953064,"token_count":210,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__67107541","lang":"en","text":"Hillcrest High School located in Midvale, UT designed with JRC Agency, featuring BLT Series by Lithonia Lighting and Slot 2 by Mark Architectural Lighting, photographed by Endeavour Architectural Photography\nMidvale Middle School located in Midvale, UT designed by Envision with JRC agency, featuring WSR LED by Lithonia Lighting, photographed by Endeavour Architectural Photography\nDel Dios Academy of Arts and Sciences located in Escondido, CA designed by HMC Architects with SDLA, featuring Lightedge by Peerless Lighting, photographed by Lawrence Anderson\nGet IN TOUCH >\nDepartment of Transportation (DOT) projects require lighting solutions that improve visibility, reduce glare, and enhance safety for drivers, pedestrians and cyclists. Additionally, energy-efficient lighting solutions reduce operating costs and help to minimize environmental impact. Our luminaires offer precise optical control and uniform illumination to meet these needs. Combine with controls to deliver energy efficiency and ensure that every project meets DOT standards and delivers optimal results.\nDepartment of Transportation Lighting","domain":"optical_engineering"}
{"url":"https://beardconstructiongroup.com/sunglasses-vs-safety-glasses-weekly-safety-moment/","date":"2024-02-28T06:24:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474697.2/warc/CC-MAIN-20240228044414-20240228074414-00165.warc.gz","language_score":0.9346334338188171,"token_count":517,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__47636805","lang":"en","text":"Summer time is approaching…now is the time many people working outdoors break out the sunglasses. While conventional sunglasses may protect the eyes from glare, they do a poor job of protecting your eyes from the industrial hazards of splashes, flying objects, and dust. In fact, conventional glasses can present their own hazards in the workplace.\n- It is a fact that the frame and lenses used in safety glasses are stronger than the frame and lenses used in conventional glasses. When an object strikes the lens of safety glasses it is very unlikely that the lens would dislodge. This is not true of conventional eye wear, especially those types with wire frames. When an object strikes the lens of conventional glasses, the lens can shatter, showering the wearer’s eye with shards of glass. This can happen, and it has happened. But, with a pair of approved safety glasses, the lens may break, but it will not shatter back into the eye.\n- Safety glasses also have shields to reduce the risk of foreign objects reaching the eye from the sides, top or bottom. Sunglasses do not.\n- Because sunglasses have a darkened lens, some people mistakenly believe these glasses will provide the needed protection when welding, brazing, or cutting. This is far from the truth. A darkened lens will not protect your eyes from the infrared (IR) and ultra-violet (UV) radiation. Wearing glasses with darkened lenses which are not made for industrial applications, can actually be more dangerous than wearing no glasses at all. For adequate protection from the visible light produced by welding, the lens must be of a specified shade. Sunglasses are not welding/cutting goggles.\n- What should you look for when selecting safety sunglasses? First, be sure the glasses are indeed safety eye wear, by checking to see if they comply with American National Standards Institute (ANSI) standards, the organization which sets the criteria for safety eye wear. This will be stated on the packaging and on the frame of the glasses. Look for “Z87.1.” This is the ANSI designation identifying the glasses as approved safety eye wear.\nAlthough not a necessity, consider glasses providing IR and UV protection. Look for glasses that are lightweight and adjustable. If the glasses don’t fit properly, they won’t be comfortable and thus they may not be worn. Try them on and adjust them before starting work. Get with your supervisor or safety tech if you are in need of a pair of safety sunglasses.\nPDF version is available through the link below.","domain":"optical_engineering"}
{"url":"https://sciex.myshopify.com/products/upgrade-kit-uvvis","date":"2018-08-19T00:19:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213903.82/warc/CC-MAIN-20180818232623-20180819012623-00512.warc.gz","language_score":0.713241696357727,"token_count":122,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__104535466","lang":"en","text":"Shop for Life Science Products\nUpgrade Kit UV/Vis\nSKU #: 144733\n- UV/Vis Detector Module\n- Filters (200 nm 214 nm 254 nm 280 nm)\n- Fiber Optic Cable\n© 2012-2015 SCIEX. The trademarks mentioned herein are the property of the AB Sciex Pte. Ltd. or their respective owners.\nAB SCIEX™ is being used under license. For research use only. Not for use in diagnostic procedures.\nSCIEX | 500 Old Connecticut Path, Framingham, MA 01701, USA.","domain":"optical_engineering"}
{"url":"https://www.olympiavisionclinic.com/lens-treatments","date":"2023-09-21T09:56:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233505362.29/warc/CC-MAIN-20230921073711-20230921103711-00690.warc.gz","language_score":0.9578644633293152,"token_count":269,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__30621761","lang":"en","text":"Lens treatments include:\n- Non-glare treatment by Crizal ®\n- UV protection\nMore on UV protection – UV light is absorbed by molecules known as chromophores, which are present in the eye cells and tissues. Chromophores absorb light energy from the various wavelengths at different rates – a pattern known as absorption spectrum. If too much UV light is absorbed, eye structures such as the cornea, the lens and the retina can be damaged causing cataracts, macular degeneration and pinguecula among other things.\nProtective eyewear is beneficial to those who are ever exposed to sunlight. Given that light may reach the eye from the sides, full coverage eye protection is usually warranted if there is an increased risk of exposure, as in high altitude mountaineering. Mountaineers are exposed to higher than ordinary levels of UV radiation, both because there is less atmospheric filtering and because of reflection from snow and ice.\nOrdinary, untreated eyeglasses give some protection. Most plastic lenses give more protection than glass lenses, because glass is transparent to UVA and the common acrylic plastic used for lenses is less so. Some plastic lens materials, such as polycarbonate and high index, inherently block most UV. There are protective treatments available for eyeglass lenses which will give better protection.","domain":"optical_engineering"}
{"url":"http://www.zsolutions.eu.com/z700_zcorp_3d_scanner_uk.htm","date":"2013-05-24T20:40:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705043997/warc/CC-MAIN-20130516115043-00013-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9009819030761719,"token_count":473,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__207645744","lang":"en","text":"The ZScanner 700\nThe first portable laser scanner.\nThis state-of-the-art laser scanner helps engineers improve design and inspection throughout the manufacturing process. Connected to a laptop via a single FireWire cable, setup is quick and scanning objects is easy, fast, and accurate.\nFor a demo movie click here\nThe ZScanner® is the first self-positioning scanner on the market. This digital scanner uses the subject part being scanned to establish its spatial reference.\nNo external tracking or positioning device is needed\nThe handheld ZScanner does not need an external tracking device like a CMM or measuring arm to establish its location or reference in relation to the object.\nInnovative Positioning Targets and Setup\nTo position itself, the ZScanner uses reflective targets, which are applied to the surface of the part to be scanned and/or the area adjacent to the part. These reflective targets can be quickly and randomly applied. The only other setup involves connecting a Fire Wire cable to the computer, which takes only seconds.\nFlexibility of Movement (Free-flowing Movement)\nThe use of reflective targets allows end users to freely move the object or scanner or both while scanning without losing track of the scanner’s position in reference to the part. This advantage comes in handy for engineers scanning cars or large objects. Since the ZScanner positions itself in reference to the object being scanned, engineers can get in and out of the car to collect all the data they need. The targets are attached to the car’s surface so movements do not affect data quality. It is possible to either scan with the doors open for easy access and to keep all parts or components in the same reference or with the doors closed to compile additional data for ergonomic analysis.\nThe Technology behind It\nDuring the scanning process, the ZScanner locates and captures the reflective positioning targets in real time. Their respective positions are calculated in reference to the scanner and then recorded. The targets on the object create patterns recognizable by the ZScanner. The patterns defined by the positioning features do not repeat because the targets are applied randomly. This pattern recognition allows the scanner to position itself in the same way that GPS devices use known satellites to establish their position on Earth.\nContact Z Solutions EU for more information.","domain":"optical_engineering"}
{"url":"https://vidmuzecinema.com/venom-2018/","date":"2019-08-18T08:59:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313747.38/warc/CC-MAIN-20190818083417-20190818105417-00307.warc.gz","language_score":0.9723383188247681,"token_count":206,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__189908121","lang":"en","text":"My team and I were fortunate enough to be one of the drone teams to pose as “picture drones,” in the feature film Venom (2018). Sony needed two drones to carry bright LED rigs to pose as autonomous drones throughout a scene involving a spaceship crash-site. Our job was to have our drone look cool on screen as well as supply some dynamic lighting. Mission accomplished!\nOur team assembled a 9 light LED array which produces 126,000 lumens. The rig sits in one of our gimbals. This allows the light rig to be stable in the air as well as point-able. This allows us to remotely strike the LED rig on and off, as well as pan and tilt the light in the direction we need to point the light. The system really worked well!\nLED aerial rigs are becoming more and more popular on set. The flexibility and versatility continues to increase all the time it seems.\nIf you need a LED aerial rig for your next production, you can contact us directly.","domain":"optical_engineering"}
{"url":"https://english.gstv.in/china-sells-advanced-missile-technology-to-pakistan/","date":"2021-01-16T06:00:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703500028.5/warc/CC-MAIN-20210116044418-20210116074418-00585.warc.gz","language_score":0.9436310529708862,"token_count":352,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__279959479","lang":"en","text":"In what is said to be an unprecedented deal, China has sold Pakistan a powerful tracking system that could speed up its military’s development of multi-warhead missiles, the South China Morning Post reported on Thursday.\nChinese authorities confirmed the technology transfer on Wednesday. A statement on the Chinese Academy of Sciences (CAS) website said China was the first country to export such sensitive equipment to Pakistan.\nThe CAS said a Chinese team spent three months in Pakistan helping calibrate the system. “The system’s performance surpassed the user’s expectations,” it said, adding that it was considerably more complex than Pakistan’s home-made systems.\nZheng Mengwei, a researcher with the CAS Institute of Optics and Electronics in Chengdu, Sichuan province, also told the Hong Kong-based newspaper that Pakistan had bought a highly sophisticated, large-scale optical tracking and measurement system from China.\nThe Pakistani military recently deployed the Chinese-made system “at a firing range” for use in testing and developing its new missiles, he said.\nAccording to the newspaper, an optical system is a critical component in missile testing. It usually comes with a pair of high-performance telescopes equipped with a laser ranger, high-speed camera, infrared detector and a centralised computer system that automatically captures and follows moving targets.\nThe device records high-resolution images of a missile’s departure from its launcher, stage separation, tail flame and, after the missile re-enters atmosphere, the trajectory of the warheads it releases.\nThe uniqueness of the Chinese-made system lay in its use of four telescope units, “more than normally required”, Zheng told the newspaper.","domain":"optical_engineering"}
{"url":"http://boas3.bo.astro.it/dip/Museum/english/can_23.html","date":"2018-01-20T21:01:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889733.57/warc/CC-MAIN-20180120201828-20180120221828-00752.warc.gz","language_score":0.8525681495666504,"token_count":155,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__222390369","lang":"en","text":"\"A hand-held telescope with well-turned granadilla case\", says the inventory of 1746.\nThe tube of this classical Galilean-type small telescope is of glued pasteboard, made from waste-paper. The outside, green, has a gilded flower pattern.\nThe optical system is one of the more simple, comprising two lenses, one convergent (object lens), the other divergent (eye-piece). The image is thus virtual, straight and magnified. Only the object lens remains.\nM. Calisi (1991), p. 26.\nG.L'E. Turner (1991), p. 412 ff.\nA. Van Helden (in M. Miniati, 1991), p. 65.","domain":"optical_engineering"}
{"url":"https://www.zeal3dprinting.com.au/interesting-facts-about-laser-cutting-that-you-cant-miss/","date":"2021-04-21T11:35:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039536858.83/warc/CC-MAIN-20210421100029-20210421130029-00353.warc.gz","language_score":0.9385426044464111,"token_count":1053,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__173087288","lang":"en","text":"Laser cutting is a gold standard when it comes to high-quality fabrication services across industries. This advanced technology creates complex design patterns by cutting into materials including metals, plastic, glass, wood, and many more. From melting, burning, engraving, or vaporizing the material — laser cutting is the ultimate method.\nThis technology utilizes a powerful, focused laser beam to cut the material blocks into bespoke patterns and shapes. It is a high-power thermal-based fabrication process that has become a ‘must-have method’ in several industries. On this note, let’s sneak peek into fun and interesting facts about laser cutting technology:\nIt’s half-a-decade old technology\nLaser cutting services sound like modern advancement, but it’s been around us for more than five decades. In the mid-1960, scientists from the Western Electric Engineering Research Center created the first laser cutting machine, which the technicians used to cut diamonds.\nSome machines can perform welding\nFor catering to advanced laser cutting service, some machines are also capable of performing welding. Depending on the specific style, a laser cutting machine may also perform welding processes. Mainly, there are three types of setups available — CO2, Nd, and ND:YAG.\nAmong these two, the ND:YAG and CO2 laser cutting machines can do the welding process. Nd type of laser machine is not able to perform any welding work. However, the Nd machines are suitable for tasks that require minimal repetition.\nIt can achieve focus up to 0.001 inches\nAnother performance-driven fact about laser cutting is that it offers much higher cutting accuracy and surface finishing as compared to other methods. Laser cutting machines can focus the powerful laser beam to the surface area with a diameter of only 0.001. With such accurate laser focus, the beam can focus on very tight spaces with higher precision. Using a powerful laser beam, manufacturers can achieve high-quality cutting and excellent surface finish.\nLaser cutting supports more than 25K applications\nAs Industry 4.0 is on the verge of disruption, industries are using laser cutting technology to accomplish thousands of jobs. There are more than 25,000 high-power laser cutting applications that enterprises are leveraging to perform bespoke jobs. With laser machines, companies can cut a wide range of materials, including wood, fabrics, paper, acrylic, metals, and many more.\nSeveral companies are offering professional laser cutting in Melbourne, Brisbane, and other places to uplift the overall fabrication process.\nIt’s environmentally safe\nAs compared to other fabrication processes, laser cutting is a safer and environmentally sustainable technique. Technicians can efficiently operate this machine without any specialized training. As the material wastage is lower and it decreases the harmful gases, laser-cutting is highly eco-friendly. While the equipment performs operations, the technician controls it from a remote location, improving overall safety.\nLaser cutting demands high power\nLaser cutting machines are high-power-driven setups that constantly need substantial electric power to execute the jobs. However, the power consumption varies based on the complexity and duration of the fabrication job. The power efficiency of these machines lies between 5% to 45%. From a laser cut of aluminium to paper, or wood, the machines’ laser power varies and directly impacts energy utilization.\nSome machines use gas\nThere is some particular machine type, including melt and blow, that leverages gas to cut through the material. In this process, the laser warms up the material block, and the pressurized gas facilitates the entire cutting operations. This cutting machine delivers smoother fabrication with different types of materials. Methods like melt and blow are ideal for cutting holes into hard and soft metal blocks, including titanium, stainless steel, and aluminium.\nLaser’s intensity matters\nThe laser cutting method’s best part is that it’s highly customizable as per the material and the thickness. To cut through a thicker block of metal, technicians will need a high-intensity laser. Similarly, on the other side, to cut metal sheets, a low-intensity laser is ideal. The laser intensity is measured with the unit of power, for example, 1,000 watts. The intensity is calculated by dividing the total energy by the surface area over which the laser is equally distributed.\nSeveral companies offer a wide range of laser cutting in Brisbane and other cities to boost the manufacturing process. Laser cutting is ideal for both small-batch and mass manufacturing.\nAdvantages of laser cutting\nManufacturing industries leverage laser cutting services as it comes with substantial benefits across the entire product lifecycle. Some of the compelling applications of laser cutting are:\n- Highly accurate and precise\n- It offers a faster turn-around time\n- Laser is relatively cost-effective as compared to other processes\n- It offers a comprehensive material compatibility\n- Safer to operate\nThese were the top interesting facts about the robust laser-cutting technology. If you are looking for professional laser cutting in Sydney, Melbourne, or Brisbane, Zeal has got you covered. Get in touch with Zeal to know more about our laser cutting fabrication services.","domain":"optical_engineering"}
{"url":"http://riverbendeye.com/What-are-options-are-there-other-than-laser-surgery.htm?m=90&s=570&id=27","date":"2023-02-05T23:01:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500294.64/warc/CC-MAIN-20230205224620-20230206014620-00794.warc.gz","language_score":0.9457417130470276,"token_count":265,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__129078721","lang":"en","text":"Q: I donít like wearing glasses or contact lenses but donít want to have laser surgery. Do I have any other options?\nA: Yes. While refractive laser surgery (i.e. LASIK) is a relatively safe procedure for certain patients, many people are hesitant to commit to a surgery that permanently changes the anatomical structure of their eyes. Fortunately, there is a procedure available that is completely reversible at a fraction of the cost of LASIK. It is called CRT (Corneal Refractive Therapy) and consists of being fit with a pair of rigid contact lenses that are designed to be slept in. The lenses temporarily reshape the cornea while you are sleeping so that when you awake and take the lenses out the vision is clearÖ kind of like retainers worn to straighten teeth. The effect typically lasts for 12-36 hours, depending on the amount of prescription being corrected; the lenses are worn only at night and are generally well tolerated. CRT is FDA approved to treat myopia (nearsightedness) and astigmatism. It is a great option for those patients that want to enjoy clear distance vision during the day without the hindrance of glasses or contact lenses but donít want to go to the lengths of a permanent surgery.","domain":"optical_engineering"}
{"url":"http://www.illuminatiunlimited.com/2008/11/effects-of-light-pollution.html","date":"2023-12-07T20:14:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00852.warc.gz","language_score":0.9335318207740784,"token_count":126,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__136666285","lang":"en","text":"Wednesday, November 12, 2008\nEffects of Light Pollution\nLight pollution—whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky, where it's not wanted, instead of focusing it downward, where it is. Ill-designed lighting washes out the darkness of night and radically alters the light levels—and light rhythms—to which many forms of life, including ourselves, have adapted. Wherever human light spills into the natural world, some aspect of life—migration, reproduction, feeding—is affected.","domain":"optical_engineering"}
{"url":"https://www.xiris.com/weld-monitoring-cameras/","date":"2023-05-29T01:33:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644574.15/warc/CC-MAIN-20230529010218-20230529040218-00727.warc.gz","language_score":0.8493787050247192,"token_count":970,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__4024782","lang":"en","text":"Xiris Weld Monitoring Cameras\nXiris Weld Cameras provide the clearest views of the brightest features of a weld arc while still being able to see the surrounding darker background areas such as the weld pool and weld seam and are suitable for a wide range of applications.\nA fully digital weld camera intended for monitoring all open arc welding processes for OEMs, Advanced End Users or Lab Environments, featuring:\n- High Dynamic Range (HDR) Images in Monochrome (XVC-1000) or Color (XVC-1100)\n- Remote Monitoring from up to 100 Metres\n- C/CS Mount for custom optics\n- Up to 55 fps @ 1280 x 1024\nA next-generation weld camera specifically designed for integration with welding automation in spaces too small for traditional weld cameras, featuring:\n- High Dynamic Range (HDR) Images in Monochrome (XVC-700) or Color (XVC-710)\n- Slimline, lightweight form factor\n- Broad array of compact S Mount optics and accessories\n- Configurable with off-axis optics for simplified installations\nA ruggedized weld camera for production and harsh environments that can be provided as a standalone camera, or packaged as a complete system with accessories. Same base features as XVC-1000/1100 but with:\n- High Dynamic Range (HDR) in Monochrome (XVC-1000e) or Color (XVC-1100e)\n- IP65 rated air- or water-cooled housing\n- Integrated LED lighting and optics with motorized fine focus\n- Replaceable front window for spatter/smoke protection\nThe XVC-S100 has been designed to meet fabricators’ requirements to remotely view and monitor Sub-Arc Welding processes, enabling improved operator safety and efficiency.\n- Easily record and playback images\n- Uses Xiris WeldStudio™ 3 software, featuring touchscreen capability and multiple crosshair overlay tools\n- Integrate two weld cameras, including an open-arc camera\n- Add an optional laser pointer accessory\nOut of the box and affordable, the XVC-S is the ideal weld camera monitoring solution for submerged arc welding.\n- High Sensitivity Color Camera in a rugged, air cooled housing\n- Adjustable field of view\n- Cross Hair Generator\n- Integrated LED Light Sources\n- Rugged Monitor Enclosure\nWeldStudio™ 3, WeldStudio™ 3 Pro and WeldSDK\nWeldStudio™ 3 is included with purchase of all XVC weld cameras. It includes access to standard tools such as the Recipe Management system for easy and fast set-up and configuration, advance image processing, and the ability to remotely view, record, and playback welding processes.\nWeldSudio™ 3 Pro is for advanced users who would benefit from machine vision and thermal measurement tools such as blob segmentation, edge, and thermal temperature reading tools. This version of the software program comes included with purchase of the XIR-1800 thermal camera.\nThe WeldSDK™ (software development kit) allows advanced Users and OEMs to create custom image processing & display applications for integration into welding machines.\nA robust welding microphone specifically designed for integration with Xiris weld cameras, allowing operators to remotely hear, record and playback welding sound to further enabling process optimisation.\nIncorporating directional pickup, noise reduction electronics and 10 Band EQ, WeldMic™ provides clear audio transmission that is integrated with the welding video.\nThe SeamMonitor™ system measures the alignment of the weld seam relative to the torch tip, the width of the weld seam and the torch tip condition. The system includes a Xiris open arc weld camera system, industrial HMI controller, and SeamMonitor™ software.\n- Measures seam width and alignment movement history for process monitoring\n- Automatically alerts the operator when out-of-tolerance weld conditions occur\n- Integrates with all Xiris High Dynamic Range (HDR) cameras in monochrome or color\n- Configurable optics that can be adjusted to suit most common welding environments\n- Integrates with other automation hardware and process monitoring systems\nWeld Camera Enhancements\nXiris offers various weld camera enhancements to augment and customize your welding processes. Products offered include:\n- Xiris WeldMic™\n- Xiris Camera Trigger Kit\n- Xiris CellView Camera\n- Xiris HMIs and PC Options\nInterested in learning more about our weld monitoring cameras?\nJoin us for a video demo and info session","domain":"optical_engineering"}
{"url":"https://red.3dmovies.com/articles/browse-stereoscopic-news-1.html","date":"2023-11-28T18:39:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099942.90/warc/CC-MAIN-20231128183116-20231128213116-00440.warc.gz","language_score":0.9427707195281982,"token_count":289,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__4992094","lang":"en","text":"Researchers develop 3D movie screen that doesn't need glasses\nA team at MIT has created technology that would allow for mass-market 3D consumption without the need for glasses\nA movie screen that can show 3D films without the need for glasses has been developed by researchers at MIT.\nCalled Cinema 3D, the technology utilises multiple parallax barriers, rather than just the one used for regular 3D viewing. It allows for different viewers to have the same experience, no matter where they are sitting.\n“Existing approaches to glasses-free 3D require screens whose resolution requirements are so enormous that they are completely impractical,” said MIT professor Wojciech Matusik. “This is the first technical approach that allows for glasses-free 3D on a large scale.”\nThe screen isn’t market-ready as yet but it’s a major breakthrough, given that all previous attempts to take glasses out of the equation were limited to TVs. What’s also important is that this new form of viewing will improve the picture quality.\n“It remains to be seen whether the approach is financially feasible enough to scale up to a full-blown theater,” said Matusik. “But we are optimistic that this is an important next step in developing glasses-free 3D for large spaces like movie theaters and auditoriums.”","domain":"optical_engineering"}
{"url":"https://iediabetes.org/category/technology/","date":"2020-06-03T00:49:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347426956.82/warc/CC-MAIN-20200602224517-20200603014517-00220.warc.gz","language_score":0.905929446220398,"token_count":412,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__12362526","lang":"en","text":"The non-profit community health center, Clinicas de Salud del Pueblo, is now offering hi-tech health services in communities of rural Riverside County.\nA digital retinal camera was installed at their Mecca Clinic Friday to help screen patients for eye disease linked with diabetes and other conditions.\nThe digital images taken by the retinal camera will be sent to optometrists at the University of California, Berkeley via a secure web portal. Results will be returned to physicians at the Mecca Clinic within 48 hours where early signs of eye diseases linked to diabetes can be identified.\nThis video by Dr. Bertalan Mesko talks about a number of technologies for diabetes management:\nGoogle X lab is developing a smart contact lens that can measure glucose levels in tears using a small wireless chip and glucose sensor that are embedded between two layers of soft contact lens material. Professor Sae Kwang Hahn and his colleagues at Pohang University of Science and Technology in Korea have made a smart contact lens and eyeglass combination that could be used to monitor diabetes and dispense drugs on-demand. When tear glucose levels rise, the smart contact lens relay this information wirelessly to the eyeglasses, which light up in case of abnormally high sugar levels.\nThe Tellspec Food Sensor is a handheld device that can scan food at a molecular level. The three-part system–a pocket-sized spectrometer, a cloud-based analysis engine, and a mobile app–work together to scan foods and identify calories, macronutrients, and allergens.\nDario has developed a Smart Meter that lets you test blood glucose levels in seconds, directly on your smartphone. It also has a smartphone app that helps you track, monitor and manage diabetes.\nmySugr also has a number of apps to help with diabetes management For example, mySugr Scanner uses an iPhone camera to grab blood glucose values from a variety of existing meters and instantly send blood glucose readings from the meter into mySugr Logbook.","domain":"optical_engineering"}
{"url":"https://www.thetvlc.com/fda-approved-trifocal-intraocular-lens-alconrea-by-ophthalmologist-jason-d-bullajian-md/","date":"2023-01-27T12:10:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494976.72/warc/CC-MAIN-20230127101040-20230127131040-00015.warc.gz","language_score":0.9285673499107361,"token_count":644,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__54912276","lang":"en","text":"The First FDA-Approved Trifocal Intraocular Lens implanted by ophthalmologist Jason D. Bullajian, MD.\nFrisco, TX, September 4, 2019 – The first intraocular lens implant that provides an exceptional combination of near, intermediate and distance vision received FDA approval August 27, 2019, and Dr. Jason D. Bullajian, founder of Texas Vision & Laser Center performed one of the first implantation of the device on a patient in the Dallas Metroplex on September 4th.\n“I’ve been performing eye surgery since 2000, and this is an amazing breakthrough. In general, the human eye has a range of vision that includes, near, medium and far distances. Before last week, cataract surgery and lens replacement patients who selected a basic lens, had to choose whether the lens I implanted would correct near or far vision. Then they would wear glasses to correct the other distances. If they upgraded to a multifocal lens they could choose to have two distances corrected, but again, that usually meant wearing glasses to correct the third distance. Now, we finally have a lens implant option that can achieve the uninterrupted vision that tri-focal glasses can provide.”\nThe FDA approval of PanOptix was based on a pivotal study at 12 investigational sites in the U.S. With this single trifocal lens design, PanOptix patients demonstrated exceptional, uninterrupted vision. The results also showed high patient satisfaction with more than ninety-nine percent of PanOptix patients saying they would choose the same lens again.1\nAccording to the manufacturer of the lens, Alcon, more than 4 million cataract surgeries are performed each year in the U.S., which is projected to increase by more than 16 percent by the end of 2024, and the nearsighted- (presbyopia-) correcting IOL market is expected to grow 60 percent by the end of 2024.\nBullajian continues, “The short 10-15 minute lens implant procedure has always been life changing, but the availability of the new AcrySof® IQ PanOptix® Trifocal intraocular lens is a game-changer, and I’m thrilled to be one of the first ophthalmologist in the Dallas area to be trained and perform implantation of this very promising lens.”\nJason Bullajian, MD is an ophthalmologist, eye surgeon and founder of Texas Vision & Laser Center located in Frisco and McKinney Texas. For more information or to connect, call 972-548-2015 or visit thetvlc.com.\n# # #\nThe AcrySof® IQ PanOptix® Trifocal IOL is a type of multifocal IOL used to focus images clearly onto the back of your eye (retina) to allow clear vision after the cataract removal. In addition, the center of the AcrySof® IQ PanOptix® Trifocal IOL allows for better near (reading) vision and intermediate (computer work) vision versus what a monofocal lens would provide.","domain":"optical_engineering"}
{"url":"http://deltainstrument.com/ftir.html","date":"2018-03-18T20:46:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257646176.6/warc/CC-MAIN-20180318204522-20180318224522-00180.warc.gz","language_score":0.8199446201324463,"token_count":222,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__14828844","lang":"en","text":"atmosFIRt is the latest generation of FTIR gas analyser technology from Protea in a portable or mobile form. The atmosFIR system improves upon previous FTIR technology and represents one of the most cost-effective and flexible analytical products on the market today. At the heart of atmosFIR is a high-resolution, robust and proven FTIR spectrometer offering high signal throughput, low-noise and long lifetime of components. atmosFIR has been developed to incorporate the latest improvements and advantages in technology, including:\nThese advantages come with the benefit of improved performance over existing products, due to the new small, robust, high resolution interferometer with low noise measurement. atmosFIR is fitted with a sensitive DTGS detector, operating at ambient temperature without need for liquid nitrogen or other cooled detectors. Protea continues to offer our powerful PAS software suite, training and support, so that the user is able to achieve the best performance out of the product.\nPortable FTIR Gas Analyser\natmosFIRt multigas analyser for emissions monitoring","domain":"optical_engineering"}
{"url":"http://www.chinaleatherfair.com/exhibitor_show-3252.html","date":"2020-08-08T08:49:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737319.74/warc/CC-MAIN-20200808080642-20200808110642-00070.warc.gz","language_score":0.883036196231842,"token_count":488,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__45892181","lang":"en","text":"Founded at the end of 2015, xiaoyou intelligent technology co., ltd. is a high-tech enterprise focusing on the development, production and sales of high-precision 3D machine vision modules.\nCompany independent research and development of 3D machine vision module with laser/DLP white light encoding grating structured light + double industrial camera, restore object 3D information, is widely applied in the field of consumer electronics (3D face recognition, medical plastic, etc.), industry (3D disordered grab, tear open buttress stacking, loading, 3D detection, etc.) and security (city public security police, intelligence traffic, wisdom, etc.), has the advantages of high accuracy, high speed, low cost.\nCompany insists on technology innovation, the core team by the national \"ten thousand project\" talents, the \"one thousand plan\" expert and researcher of Chinese Academy of Sciences, gathering hardware (optics, circuit and MEMS, testing), software (the underlying algorithm, upper application) and management (marketing, sales, supply chain), and other professionals in various fields, master's, doctorate education staff accounted for more than 70% of the total number of employees.\nThe company has abundant intellectual property reserves. So far, it has authorized more than 10 invention patents, more than 30 utility model patents and more than 10 software Copyrights.The company passed iso9001:2015 quality management system certification in 2017, and became a national high-tech enterprise in the same year.In early 2019, the ipr standards system will be adopted.\nIn October 2017, xiaoyou intelligent technology (shenzhen) co., ltd. was established in nanshan district, shenzhen city, which is dedicated to the research and development of face recognition technology in the field of mobile consumer electronics.\nIn August 2019, suzhou xiaoyou intelligent technology co., ltd. was established in wuzhong district, suzhou city, dedicated to the design and development of the underlying chip.\nOrganizer: Wenzhou Shoes & Leather Industry Association\nZhejiang Donnor Exhibition Co., Ltd.\nZhejiang Donnor Exhibition Co., Ltd. Tel.: +86-577-88902222 Fax: +86-577-88901788 Email: email@example.comCopyright © 2020 support:lianke","domain":"optical_engineering"}
{"url":"https://www.e-plasticase.com/hj/","date":"2022-08-18T04:54:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573163.7/warc/CC-MAIN-20220818033705-20220818063705-00179.warc.gz","language_score":0.9159102439880371,"token_count":291,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__118337003","lang":"en","text":"For more than 40 years, Gaggione has been developing and manufacturing standard and custom optical components in plastic injection, in different types of polymers: PMMA, PC, COC and COP.\nOptical design, tooling development, injection and peripheral processes, Gaggione offers you a unique and global service. All our resources such as diamond machining for mold impressions, our electric presses for their reliability, or our measuring instruments are at your disposal.\nAchieving an optimal focus position of the lens is the key factor for a successful LED/collimator integration.\nThroughout our 60 years of existence we have witnessed the development of raw materials, and our experience now enables us to offer you advices on the best choices.\nA color mixing optic requires a particular LED layout in order to work properly.\nFounded in 1948, GAGGIONE is an optics manufacturer located in Montréal-la-Cluse between Lyon (France) and Geneva (Switzerland). Gaggione provides high quality optical solutions for LEDs and other lighting applications since the introduction of the world’s first Barracuda LED collimator in 1996.\nA team spread all over the world is dedicated to guide you in your choices. Europe, DACH Region, USA, Canada, China: find the contact available closest to your location. In addition to our sales team, we can also count on a network of distributors.","domain":"optical_engineering"}
{"url":"https://vibrantz.com/ps_elements/aluminum-oxide-plastics-lens-polishes/","date":"2023-09-29T20:54:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510528.86/warc/CC-MAIN-20230929190403-20230929220403-00488.warc.gz","language_score":0.8785963654518127,"token_count":148,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__138696292","lang":"en","text":"We’re experts and innovators focused on solving challenges, embracing change and growing.\nWe are a leading global manufacturer of high-purity, alumina-based plastic lens polishing compounds that deliver the excellent polishing performance and high-quality finished surfaces required for optical lens surfacing. We manufacture a diverse portfolio of high-purity alumina slurry products and powders available with varying characteristics, allowing our customers to select the best option for polishing resin-based prescription lenses.\nAspire™ is our premium alumina polishing slurry product formulated to be used with digital/freeform and conventional prescription lens polishing processes. It can be used to polish all resin-based ophthalmic lens substrates.","domain":"optical_engineering"}
{"url":"https://www.clinihealth.co.za/product-tag/hb-test-strips/","date":"2021-11-30T16:10:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359037.96/warc/CC-MAIN-20211130141247-20211130171247-00213.warc.gz","language_score":0.8326939344406128,"token_count":273,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__3836718","lang":"en","text":"Showing the single result\nAn ACON Mission Plus Hb Hemoglobin Test strip is made of sturdy plastic and at the back of the strip there is a brown reference pad which checks whether the optical system of the Mission Plus Hb Hemoglobin meter performs well. The reference pillow has a standard reflection value to compare with the value of the Hemoglobin meter system. After the ACON Mission Plus Hb Hemoglobin Test strip is inserted into the meter, the reflection value is compared with the pre-calibrated value stored in the meter software. The meter indicates ‘yes’ if the optical system is working properly and ‘no’ if this is not the case.\n- 25x Hemoglobin test strips for use in Mission Plus Hb meter\n- Highly accurate Hemoglobin and Hct monitoring\n- unit of measure: g/dL, g/L, mmol/L\n- Hb Measurement Range 4.5-25.6 g/dL, 45-256 g/L, 2.8-15.9 mmol/L\n- Hct Range 13-75%\n- Easy to use\n- For professional use\nImportant: The Mission Plus HB Meter is meant for professional use.\nImportant: Do not use the test strips for more than 3 months after opening.","domain":"optical_engineering"}
{"url":"https://www.vitashield.eu/kugo-glasses/","date":"2024-04-22T19:21:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00479.warc.gz","language_score":0.8686190247535706,"token_count":987,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__29155444","lang":"en","text":"Step into a world where vision is not just seen but experienced—welcome to KUGO, where our lenses are meticulously crafted to align with human origins and natural circadian rhythms. Each variant serves a unique purpose, ensuring that your eyes receive the care they deserve.\nKUGO 400: Clear Vision, Complete Protection\nEmbracing the essence of simplicity, KUGO 400 lenses offer crystal-clear vision while blocking 100% of UV light under 400nm. Designed for those relying on diopters, these lenses provide basic yet essential protection throughout the day, safeguarding your eyes with every glance.\nKUGO 450: Navigating the Digital Era\nIn a world dominated by screens, KUGO 450 lenses emerge as the ultimate guardians. With a yellow tint, they reduce 80% of blue light up to 450nm-460nm, addressing the harmful blue light emitted by digital devices. Revolutionize your daily routine with these lenses, offering unparalleled protection for work, gaming, or watching—unleashing a positive impact on lives worldwide.\nKUGO 550: Redefining Restful Nights\nIntroducing the game-changer for bedtime rituals, KUGO 550 lenses. With a calming red tint, these lenses block 100% of blue and green light up to 550nm. Wearing them 2-3 hours before bedtime induces instant sleep by supporting melatonin production, even in the digital age. Ensure a tranquil night's sleep with these must-have lenses, redefining the way you rest in the era of digital illumination.\nBeyond the spectrum of vision, our lenses are engineered with cutting-edge properties that redefine eyewear standards. Explore the seamless fusion of clarity, durability, and protection in every pair of KUGO lenses. All of our lenses are produced with HMC (Hard Multi-Coating) technology that secures:\nElevate your eyewear experience with KUGO's scratch-resistant lenses. Crafted to withstand everyday wear and tear, these lenses ensure that your vision remains crystal clear, free from the distracting blemishes of scratches.\nUnveil the power of non-stick materials in KUGO lenses, repelling dirt and grime effortlessly. Enjoy lenses that stay clean and clear, even in the midst of life's everyday adventures.\nThe hard coating makes the lenses easier to clean by preventing dirt, smudges, and fingerprints from adhering to the surface. This feature contributes to clearer vision and a more aesthetically pleasing appearance.\nRain or shine, KUGO lenses have you covered. Our lenses boast an applied water-repellent layer, ensuring that water beads off effortlessly. Face the elements with confidence, knowing your vision is shielded by technology designed for the real world.\nBid farewell to distracting reflections with KUGO's antireflex properties on both sides of the lenses. Whether under bright lights or in low-light conditions, enjoy optimal vision without the interference of glare, enhancing your visual experience to the fullest.\nExtended Lens Lifespan:\nWith increased resistance to scratches and other forms of wear, HMC-coated lenses tend to have a longer lifespan compared to untreated lenses. This makes them a durable and cost-effective choice for eyeglass wearers.\nEnhanced Visual Comfort:\nThe anti-reflective properties of HMC coatings not only improve the cosmetic appearance of the lenses but also reduce reflections and glare, providing enhanced visual comfort, especially in challenging lighting conditions.\nImmerse yourself in a digital world without compromising eye health. KUGO lenses feature a potent blue light filter, creating an impermeable barrier against the harmful effects of artificial light emitted by screens. Experience enhanced visual comfort without sacrificing your well-being\nWe understand that eyewear is not just about seeing—it's about seeing clearly, comfortably, and confidently. Our lenses redefine expectations by seamlessly integrating scratch resistance, dirt repellency, blue light filtration, water repellency, and antireflective brilliance.\nWe recognize the significance of harmonizing eyewear with the human experience. Our revolutionary lens collection goes beyond mere functionality; it aligns with your lifestyle, providing comprehensive protection tailored to your needs. Embrace clarity, embrace KUGO—where each lens variant is a testament to our commitment to your visual well-being.\nShop at our store today and embark on a journey of visual clarity with KUGO.","domain":"optical_engineering"}
{"url":"https://solarserdar.wordpress.com/2011/04/28/flir-manufacture-and-marketing-of-thermal-imaging-infrared-cameras/","date":"2019-12-15T13:16:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575541308149.76/warc/CC-MAIN-20191215122056-20191215150056-00207.warc.gz","language_score":0.8429244160652161,"token_count":808,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__184541366","lang":"en","text":"CROATIAN CENTER of RENEWABLE ENERGY SOURCES\npromotes to you\nFLIR – the Global Leader in the Design, Manufacture and Marketing of Thermal Imaging Infrared Cameras\nFLIR Systems Inc, (NASDAQ: FLIR) is a leading manufacturer of innovative imaging systems that include infrared cameras, aerial broadcast cameras and machine vision systems. Our products play pivotal roles in a wide range of industrial, commercial and government activities in more than 60 countries.\nPioneers in the commercial infrared camera industry, the company has been supplying thermography and night vision equipment to science, industry, law enforcement and the military for over 50 years. From predictive maintenance, condition monitoring, non-destructive testing, R&D, medical science, temperature measurement and thermal testing to law enforcement, surveillance, security and manufacturing process control, FLIR offers the widest selection of infrared cameras for beginners to pros.\nWith over 60 offices and the largest installed infrared camera base in the world, FLIR offers its customers unparalleled service, the best post-sale technical applications support available and world-class infrared camera and thermography applications training.\nEmployees: 3.000 worldwide\nInvestor Resources: http://www.flir.com/investor/\nRankings: #37 on Forbes: 200 Best Small Companies\nRevenue: $1.1B US-Dollar (2008)\nLocations: FLIR conducts business in more than 60 countries around the globe\nInfrared light or thermography is the use of an infrared imaging and measurement camera to “see” and “measure” thermal energy emitted from an object. Thermal, or infrared energy, is light that is not visible because its wavelength is too long to be detected by the human eye; it’s the part of the electromagnetic spectrum that we perceive as heat. Unlike visible light, in the infrared world, everything with a temperature above absolute zero emits heat. Even very cold objects, like ice cubes, emit infrared.\nWhat is Infrared?\nThermography and Infrared Light\nThe higher the object’s temperature, the greater the IR radiation emitted. Infrared allows us to see what our eyes cannot. Infrared thermography cameras produce images of invisible infrared or “heat” radiation and provide precise non-contact temperature measurement capabilities. Nearly everything gets hot before it fails, making infrared cameras extremely cost-effective, valuable diagnostic tools in many diverse applications. And as industry strives to improve manufacturing efficiencies, manage energy, improve product quality, and enhance worker safety, new applications for infrared cameras continually emerge.\nFLIR Thermal imaging cameras\nFLIR Systems offers a full range of thermal imaging cameras. Different users have different needs, that is exactly why FLIR Systems offers you a choice.\nWhether you are a predictive maintenance or building professional, a R&D specialist or involved in factory automation and safety, FLIR Systems has the correct thermal imaging camera for you. Different models are available for those that are just discovering the benefits that thermal imaging has to offer and for real thermal imaging professionals.\nFLIR have cameras for:\nResearch & Development\nCooled thermal cameras\nTo contact Extech directly, please call +1 781 890 7440 or visit http://www.extech.com for more contact options.\nYou can buy FLIR product in Croatia on:\nPhone: +385 1615 2606\nFax: +385 1615 2605\nElsi Hitech Group d.o.o.\nTel: +385 145 561 55\nFax: +38 146 641 18\nMore info at :\nFLIR Commercial Vision Systems BV\nBreda, The Netherlands\nPhone: +31 (0)765 79 41 94\nFax: +31 (0)765 79 41 9\nCROATIAN CENTER of RENEWABLE ENERGY SOURCES ( CCRES )","domain":"optical_engineering"}
{"url":"https://www.europlacer.com/feature/vision-system/","date":"2018-02-20T13:49:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812959.48/warc/CC-MAIN-20180220125836-20180220145836-00625.warc.gz","language_score":0.9008548259735107,"token_count":278,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__184677810","lang":"en","text":"A powerful vision system is a key feature in any pick & place machine, and there are no short cuts. Europlacer developed its own vision algorithms to analyse QFPs back in the 1980s.\nEuroplacer is recognised as being at the forefront of vision capability, and has evolved its technology alongside some of the most challenging customer applications.\nOur software algorithms combine with our own vision and lighting systems to manage the most complicated of component packages.\nThis high-resolution camera is used for inspection of ultra fine pitch components, µBGA, and flip chip devices. It’s also used for components larger than the 50mm x 50mm specification of the “on the fly” camera, to give accurate machine vision up to 99mm x 99mm.\nIt can acquire images in single field of view (SFOV) or multiple field of view (MFOV) modes. By locating it between the feeder zones on iineo, it does not reduce the maximum feeder count.\nAvailable on the following machines\n- Long/Large pcb’s\n- NT Feeder\n- Feeder Cart\n- Fixed Camera\n- Glue/Paste Dispensing\n- Electrical Test\n- Special feeders\n- Tray Loader\n- SMT Matrix trays\n- Stick Feeder\n- Szero pcb","domain":"optical_engineering"}
{"url":"http://link-springer-com-443.webvpn.fjmu.edu.cn/chapter/10.1007/978-3-319-75380-5_4","date":"2020-06-04T07:54:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347439213.69/warc/CC-MAIN-20200604063532-20200604093532-00367.warc.gz","language_score":0.939964234828949,"token_count":153,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__10117078","lang":"en","text":"Raman Instrumentation for Confocal Raman Microscopy\n- 1.5k Downloads\nRaman spectroscopy is a weak scattering technique in which typically less than one in a million excitation photons give rise to a single Raman photon. The situation is even more difficult in confocal Raman microscopy, as the detection volume is reduced by the small pinhole and thousands of spectra must be collected in a short period of time. Therefore, careful design of the excitation and detection optics, as well as the appropriate choice of spectrometer and detector is important for successful experiments. As detectors and instrumentation in this field continue to quickly evolve, a snap-shot of state of the art Raman equipment and instrumentation will be provided.","domain":"optical_engineering"}
{"url":"https://www.3dmodels.com/item/light-screening-cone/BzRtAxaQzUh","date":"2019-11-14T11:27:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668416.11/warc/CC-MAIN-20191114104329-20191114132329-00304.warc.gz","language_score":0.8784237504005432,"token_count":162,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__25450","lang":"en","text":"Light screening coneBy Cults on June 26, 2019 16:04\nAs part of the research of the [ChIP lab](http://chiplab.chem.polimi.it) on Luminescent Solar Concentrators (LSCs), we needed something to improve our measurements. Indeed, light from the solar simulator was coming directly to the optical fiber, without passing through the LSC. We hence needed something to cover both the edge of the LSC and the cosine corrector to which the optical fiber is linked. These two 3D-printed cones, designed by [Andrea](https://www.thingiverse.com/andremaker/about), answered our problems.\n*Team: Francesca Corsini, Sébastien Roth & Andrea Mantelli*","domain":"optical_engineering"}
{"url":"http://hotelsupplies.us/product/6-pack-br40-led-17watt-100w-equivalent-3000k-warm-white-dimmable-indooroutdoor-lighting-1400-lumens-flood-light-bulb-ul-energy-star-listed/","date":"2017-06-27T08:49:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128321306.65/warc/CC-MAIN-20170627083142-20170627103142-00203.warc.gz","language_score":0.8543420433998108,"token_count":462,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__122318199","lang":"en","text":"– Base Type: E26\n– Dimmable : Yes\n-Color: Warm White 3000K\n– Luminous Intensity: 1400lm\n– Watts: 17W\n– CRI: 80\n– Voltage: 120V\n– Incandescent Equivalent: 100W\n– Certifications: UL and ENERGY STAR\n1) This High Power BR40 LED, offers a market leading 1400lm output and is perfect for areas where a brighter light is needed.\n2) A green product that saves energy, helps our earth, and lowers electric bills.\n3) The powerful light output and beam angle make it perfect for all manor of uses in the home, including lighting rooms that have slightly taller ceilings than most.\n4) In comparison to other LED bulbs available, the slightly wider beam angle and 1400lm output will ensure the bulbs packs enough of a punch to reach floor and work surface level, even when placed in a higher ceiling\n5) This retrofit LED bulb fits straight into most existing fittings but please refer to the listed specifications should you wish to double check the LEDs fitting size.\nWhy Buy yourself a LED Bulb\n1) LEDs have great advantage of thermal resistance, larger cooling area, better lighting effect and high light efficacy.\n2) High CRI (Color Rendering Index) means that the LED is emitting more of the color spectrum than typical LEDs do, Your typical bright-blue tint LED drops red, orange and aqua wavelengths, but modern high CRI emitters do a better job of outputting the entire spectrum\n3) Proprietary Optics Lens enabling glare-free uniform lighting for all working environments\n- #1 Rated LED BR40\n- ? DIMMABLE with UL & ENERGY STAR LISTED. Reduce re-lamp frequency. Lifespan over 25,000 hrs\n- ? One of the highest standard bulbs on the market; Perferred by most contractors and electricians\n- ? Applications: Home Lighting, Landscape Lighting, Track Lighting, Accent lighting, Art Galleries, General Lighting, Hotels, Museums, Offices, Restaurants, Retail Shops\n- ? Super BRIGHT light, SAVES energy, and LOWERS electric costs","domain":"optical_engineering"}
{"url":"https://tracepaper.wordpress.com/2012/10/26/the-camera-obscura-in-modern-times/","date":"2021-11-27T18:18:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358208.31/warc/CC-MAIN-20211127163427-20211127193427-00022.warc.gz","language_score":0.9348236918449402,"token_count":299,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__69503323","lang":"en","text":"Photographer Abelardo Morell creates unusual images that bring the exterior world to the interior of rooms through the use of an optical device, the camera obscura.\nHe has been taking these “travel” photographs since the early 90’s starting with black and white film moving into color and finally digital photography. He uses this optical device first discovered in the 5th century B.C. to fuse the inside with the outside creating literal yet ethereal images. From Times Square to Florence’s Baptistry, Abelardo has traveled the world documenting these camera obscuras.\nThe camera obscura is created by blocking out all the light in a room and then creating a pinhole (small hole) on one of the sides (that faces the view you want to capture) allowing the view outside to be projected onto the opposite wall, upside down. Why does this happen? Light travels in straight lines and when some rays reflected from a bright object pass through a small opening with a thin surface, instead of dispersing, these rays reconstruct as an upside down image on the flat surface opposite the hole.\nArtists such as Leonardo da Vinci used the camera obscura as a drawing tool using it to project views onto the canvas/paper and sketching over them. There is a much disputed debate about whether advances in realism in the art of the early Renaissance occurred due to the aid of optical devices such as the camera obscura (Hockney-Falco thesis).","domain":"optical_engineering"}
{"url":"https://georgelodge.photography/review/lens-review-canon-24mm-pancake/","date":"2023-12-04T13:32:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00478.warc.gz","language_score":0.9393555521965027,"token_count":324,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__240163795","lang":"en","text":"This 24mm f2.8 pancake lens by Canon is both versatile and effective. Offering a range of aperture from f2.8-f22. It has a STM (Stepping motor) focus that can sometimes has a slight delay when focusing manually making it a tad tedious to catch perfect focus on a subject. This is a ef-s lens and it’s built for aps-c cropped frame Canon dslrs.\nIn combination with my Canon 550d. The sharpness in image quality is good and on average better than a typical kit lens with a wider focal range. The a sweet spot for aperture I would say is around f8-f11 when used for landscape photography.\nHaving a wide angle of 24mm makes this lens ideal for landscapes and I think that having a fixed focal length is a good exercise in finding a perfect composition from a limited view finder.\nWhen using filter holders I found it was very handy using multiple ND filters and fitting a polarizing filter as you don’t have the additional weight of a heavy lens when setting up a shot on a tripod.\nIn summary this lens is a nifty little addition to any kit bag and is ideal for when you need your dslr to be light and handy. The manual focus is slightly fiddly, but you do get better than average results when it comes to image sharpness.\n|Focus motor type||STM|\n|Lightweight||Delay in focus|\n|Good depth of field||Thin focus ring|\n|Good for multiple filters|","domain":"optical_engineering"}
{"url":"https://veti.co.za/product/800w-rotary-dimmer-with-locator","date":"2023-12-05T16:00:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.2/warc/CC-MAIN-20231205140836-20231205170836-00372.warc.gz","language_score":0.8569039106369019,"token_count":170,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__251875184","lang":"en","text":"The rotary dimmer can be used with most types of dimmable LEDs and all incandescent lamps. Due to different technology used in different brands of LEDs, Major Tech can only guarantee compatibility with all of Major Techs dimmable LEDs and all brands of incandescent lamps. The dimmer includes a pilot light to easily find it in the dark. Dimming is controlled by rotating the dimmer knob in a clockwise direction to increase light intensity and in an anticlockwise direction to decrease the light intensity. The dimmer is turned on and off by rotating the knob until a distinct clicking noise is heard at the start of the dimming cycle. The dimmer uses trailing edge technology to limit the stress put on the lamps.\nFlame retardant polycarbonate\n800W (incandescent) or 400W (LED)","domain":"optical_engineering"}
{"url":"http://www.hit.ac.il/sciences/news_events/Holon_Physics_Seminar_08_01_15","date":"2017-04-24T11:15:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119356.19/warc/CC-MAIN-20170423031159-00192-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9258991479873657,"token_count":456,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__251083509","lang":"en","text":"Holon Institute of Technology, Faculty of Sciences\n\"Cortical Adaptation and Visual Enhancement via Depth of Focus Extension and Tactile Stimulation of the Cornea\"\nProf. Zeev Zalevsky, Bar Ilan University\nJanuary 08, 2015 | 13:00 | Seminar Room 424/8\nMy talk will be divided into two parts. In the first I will discuss novel interference based extended depth of-focus concept that we have developed which is matched to cortical adaptation. In the second I will show how special contact lens can be used to transmit visual information via spatial tactile stimulation of the human cornea.\nPassive ophthalmic optic devices correct refractive defects of the eye but are not designed to employ neural adaptation processes. Our interference based extended depth of focus technology is implemented on conventional refractive devices, such as spectacles and contact lenses, and its testing is described.\nThis technology is capable of simultaneously correcting all refractive errors, such as myopia, hyperopia, presbyopia, regular/irregular astigmatism, as well as their combinations. This is achieved by exploiting the capacity of the visual system for adaptation to contrast as well as its capability of creating a coherent continuous visual field out of discrete lines of sight.\nIn the second part of my talk I propose to mount a camera and after proper image encoding to transmit the visual information to special contact lens that performs tactile stimulation of the cornea and therefore allows \"seeing” with the eyes but not via the retinal photo receptors that are connected to the visual cortex but rather through the tactile sensors of the cornea. In a way our technological concept is similar to \"Braille” reading that is done not via the finger tips but rather via the tactile sensation of the cornea. This technology can potentially be a non-invasive sensory substitution allowing blind people to perceive images.\nThe outcome of my study which involves preliminary human trials will for the first time show that the tactile sense of the cornea has spatial discrimination capability and thus can be used to transmit spatial information. Corneal tactile stimulation can thus be potentially considered for use as vision substitute for blind people by teaching them to associate the tactile feeling of the stimulation to real spatial shapes and images.","domain":"optical_engineering"}
{"url":"https://appcdstage.collegedunia.com/courses/bachelor-of-technology-btech-optics-and-optoelectronics","date":"2022-01-27T11:59:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305260.61/warc/CC-MAIN-20220127103059-20220127133059-00666.warc.gz","language_score":0.8872373104095459,"token_count":1584,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__129445643","lang":"en","text":"Bachelor of Technology in Optics and Optoelectronics is a full-time degree course in Physics lasting for a duration of 4 years.\nIt is a sub-field of Photonics which is a part of Physics where the nature of light with electricity is studied. Optoelectronics involves the study, design, and manufacture of hardware devices that convert electrical signals into photon signals and vice versa.\nCandidates seeking admission to Bachelor of Technology in Optics and Optoelectronics should have passed class 12 (10+2) with Physics, Chemistry and Mathematics as main subjects. In addition to that, they are also needed to qualify the JEE Main entrance exam. The average course fee is INR 2,50,000, depending on the institute offering the course. Upon completion of the course, successful graduates can expect a starting salary of about INR 4 – 5 lacs per annum.\nWhat is B.Tech in Optics and Optoelectronics about?\nBachelor of Technology in Optics and Optoelectronics is a relatively new and technologically advanced course. As a huge market for optoelectronics is present and evolving in India, numerous companies across the globe hire successful graduates of the discipline. However, there are fewer Indian companies participating in research and production in this area, which is why jobs are mostly available overseas. This course provides tremendous opportunities for growth for successful graduates.\nOptoelectronic is the study of science that deals with the designing of devices which emit light in every part of the spectrum; it is applied in various sectors like consumer application, communication and more.\nTop Colleges for Bachelor of Technology [B.Tech] (Optics and Optoelectronics)\nWhat is B.Tech in Optics and Optoelectronics Course Highlights Table\n|Name of the course||Bachelor of Technology in Optics and Optoelectronics (B. Tech)|\n|Course Duration||4 years (8 semesters)|\n|Average Fee of the course||INR 2,50,000 p.a|\n|Sectors of employment||Corporate, Public, Pvt., Government|\n|Average salary in entry-level||INR 3.50 lacs p.a|\n|Top entrance exam||JEE Main|\nB.Tech in Optics and Optoelectronics: Course Duration\nB. Tech in Optics and Optoelectronics is a 4- year long degree course with optical physics as the main discipline. Candidates passionate about Physics and Mathematics and research therein may pursue it.\nTop Institutes Offering B. Tech in Optics and Optoelectronics\nListed here are some of the top institutes in India that offer B. Tech in Optics and Optoelectronics. Specified along are the institutes’ locations and the respective fees charged by them.\n|Name of Institute||City||Fees in INR|\n|Sinhgad Institutes||Pune, Maharashtra||--|\n|Aryabhatta Degree College||Tughlakabad, Delhi||40,000|\n|Arya Institute of Engineering Technology and Management (AIETM)||Jaipur, Rajasthan||2.8 Lacs|\n|Jnana Vikas Institute of Technology||Bidadi, Bangalore||5.4 Lacs|\n|University of Kolkata||Kolkata, WB||1 Lacs|\nEligibility for B. Tech in Optics and Optoelectronics\nB. Tech in Optics and Optoelectronics is an undergraduate qualification of 10+2 cleared from a recognized educational Board of India with a minimum aggregate score of 75% with PCM and English. JEE Main is the State level entrance exam that is required to be cleared for admission.\nAdmission Process for B. Tech in Optics and Optoelectronics\nCandidates who clear the JEE paper need to fill the admission form of the institute in question. Upon submission of the application forms, candidates are shortlisted on the basis of the score attained in the 10+2 exam. Candidates get admission depending upon the number of seats available.\nThere are no direct admissions available for B. Tech in Optics & Optoelectronics.\nEntrance Exams for B. Tech in Optics and Optoelectronics\nJEE Main is the only entrance exam required to be cleared for admission to B. Tech in Optics and Optoelectronic. The form is made available in December and can be filled for INR 500. The paper lasts for a 3- hour duration, and carries 1 negative mark for every incorrect answer.\nCareer Prospects After B. Tech in Optics and Optoelectronics\nSuccessful graduates of B. Tech in Optics and Optoelectronics have the option of going for a Master’s Degree or doctorate- level research. They may also choose to get self-employed in businesses concerning optoelectronics or take up teaching the discipline.\nB. Tech in Optics and Optoelectronics trains students in designing optics- efficient technologies and specializing in areas such as fiber optics and laser technology. Some of the leading job opportunities for successful graduates of B. Tech in Optics and Optoelectronics are listed here.\n|1.||Optical Design Engineer|\n|2.||Integrated Signal Processing Researcher|\n|3.||Optical Module Test Development Engineer|\n|4.||After Sales Service Engineer|\nPotential Salary After B. Tech in Optics and Optoelectronics\nThe potential job opportunities and corresponding salaries offered to graduates after the successful completion of B. Tech in Optics and Optoelectronics are listed here.\n|Product Development and Quality Assurance||0-2 years||4,00,000 - 6,00,000 p.a|\n|In- house Tool Maintenance||0-1 years||1,00,000 - 3,00,000 p.a|\n|Network Quality Engineer||3- 5 years||3,00,000 – 8,00,000 p.a|\n|Service Engineer||2- 5 years||3,25,000 – 6,00,000 p.a|\n|Process engineer||3 years||3,50,000 – 5,00,000 p.a|\nTop Recruiters for B.Tech in Optics and Optoelectronics\nSuccessful graduates in the discipline also have the option of joining the electronics industry as technicians or engineers and subsequently work in related industries like telecommunication, computer applications of photonics, optical companies, laboratories and more. One can also find jobs in health care and electronic industries. Some of the top recruiting organizations are listed here.\n|Research & Development organizations|\n|Bhaba Atomic Research Center|\n|Nuclear Power Plants|\nB.Tech in Optics and Optoelectronics: Syllabus and Course Structure\nA detailed study of the syllabus and course structure for B. Tech in Optics & Optoelectronics is given in the table below.\n|1.||Review of Semiconductor Device Physics:\n|2.||Interaction of photons with electrons and holes in a semiconductor:\n|3.||Semiconductor Photon Source:\n|4.||Semiconductor Optical Amplifiers & Modulators:\n|5.||Semiconductor Photo detectors:","domain":"optical_engineering"}
{"url":"https://e-opthos.com/iodine-or-tellerium-cell","date":"2022-09-25T15:02:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334579.46/warc/CC-MAIN-20220925132046-20220925162046-00630.warc.gz","language_score":0.7703999280929565,"token_count":250,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__265470704","lang":"en","text":"Accurate wavelength calibration of high resolution tunable lasers can be obtained with our inexpensive and easy-to-use molecular absorption cells combined with the appropriate spectral line atlas.\nNo complicated adjustments are required. Just direct a small part (typically 4%) of the laser beam through the cell and monitor the absorption or the fluorescence signal with an ordinary photodiode. Room temperature is ideal - no heating or cooling of cell is needed.\nRegion of use: 500-675 nm\nAbsolute accuracy: + 0.002 cm -1 ( 1 part in 10-7)\nUse with CW or pulsed systems.\nUse to check alignment of digital wavemeters.\nUse to lock laser to fixed wavelength. (see for example H. Fietz et al., Applied Spectroscopy\n35, 609, 1981.)\nCell material: Quartz\nCell dimensions: Cylindrical, 25mm X 100mm\nSpectral Atlas: S. Gerstenkorn and P. Luc \"Atlas du Spectre d' Absorption de la Molecule d' I\nIode (Editions du C.N.R.S., Paris 1978), 550 pages. Illustrated introductions in English and","domain":"optical_engineering"}
{"url":"https://www.aginfo.net/index.cfm/report/id/Idaho-Ag-Today-42102","date":"2020-07-05T09:43:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655887319.41/warc/CC-MAIN-20200705090648-20200705120648-00545.warc.gz","language_score":0.9090852737426758,"token_count":257,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__8952084","lang":"en","text":"Processing: We use various image processing techniques to generate highly accurate data on every plant in the field.\nScientific Analysis : We use biological and mathematical modeling to correlate this data to physical plant properties (plant water stress, leaf nitrogen content)\nOur cameras take images at multiple wavelengths ranging from the Visible to the Far Infrared light spectrum. We are different in the fact that we take our imagery using multiple cameras. Each Camera captures data from a different part of the light spectrum, ranging from the visible to far-infrared wavelength. Depending on the kind of imagery package you request we can take up to 6 different wavelengths of the light spectrum at once. We then have our systems capture hundreds of images and the individual frames in order to make a seamless mosaic of your field. We then provide best in class resolution of 0.2 – 1 meter per pixel, depending on the crop and application. No drones over our fields. When Ceres Imaging first started, we experimented with drones and found that they could not cover the area that an aircraft could in the same amount of time. Drones are not able to withstand much of a payload capacity which is needed for our camera systems. Also, more personnel would be needed in the field to maintain and move drones from site to site.","domain":"optical_engineering"}
{"url":"http://www.saguaroastro.org/a-guide-to-eyepieces-part-2/","date":"2019-12-07T18:37:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540501887.27/warc/CC-MAIN-20191207183439-20191207211439-00271.warc.gz","language_score":0.9662338495254517,"token_count":2107,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__91759189","lang":"en","text":"Last time we used some eyepiece math and got familiar with terminology associated with eyepieces. In the same way that there are several different designs of telescope optics, the lenses within an eyepiece are arranged in a variety of ways to provide the observer with magnification and a focused field of view to observe. This article will look into the types of eyepieces available to modern observers and the strengths and weaknesses of each design.\nBasically, as lens makers got better at making consistent glass with the same curves each time, they realized that adding more lenses generally reduced the aberrations in the eyepiece. Many of the designs I will discuss are named for the person who invented the combinations of lenses which make up these eyepieces.\nSo, the first eyepiece designs, the Ramsden and Huygenian, only contain two lenses and are very poor eyepieces by modern standards. They have very narrow fields of view, short eye relief and many aberrations. Cheap telescopes often include these inexpensive eyepieces.\nThe Kellner is the best of the inexpensive eyepieces. This style of lens has been around for many years and it contains one doublet (two lenses together) and one singlet lens for a total of three pieces of glass inside. The Kellner does not have any excellent characteristics, but it also has few real flaws. Kellner eyepieces have decent eye relief, a fair field of view (45 degrees) and little curvature of field.\nThe Plossl eyepiece is composed of two doublets, which are identical to each other. For this reason, you will also hear it called a symmetrical eyepiece. It is an excellent eyepiece and many observers look no farther than a good set of Plossls. They have a wide field of view (55 degrees), very good eye relief and are well corrected for aberrations. They cost more than Kellners, but they are worth it.\nOrthoscopic eyepieces are generally not named for their inventors, Mittenzwey and Abbe, and I think you can see why. The “Orthos” have one outstanding characteristic, the aberrations and distortions in these eyepieces are virtually non-existent. These flat field eyepieces have a fair amount of eye relief and field of view (50 degrees). This design contains a triplet lens with one singlet nearest your eye.\nThe Erfle eyepiece was invented to provide a wide apparent field of view and they do that (65 degrees). What the Erfle design gives up is some sharpness of the image at the edge of the field of view. Also, if there is a very bright star nearby where you are observing, some ghost images can appear within that wide field. Inside the Erfle is a combination of three doublet lenses.\nThis is where the eyepiece world stood for many years. Then the advent of computerized lens designs changed the standards for eyepiece manufacturers.\nEnter the Nagler and Ultra Wide designs. These computer- designed eyepieces contain either seven or eight lenses, some with curves ground into them which would have been impossible before modern grinding machines were constructed. These designs provide an extremely wide field of view (82 degrees) and very distortion-free fields at those wide angles. They all have two disadvantages: cost and weight. All that glass is going cost more to grind and put together, also, once it is assembled these eyepieces weigh nearly two pounds in long focal lengths.\nAlong with eyepieces themselves, there is a device which will change the magnification of your system. It is called the Barlow lens. Just slide your eyepiece into the Barlow and put the whole thing into the eyepiece focuser and you have raised the magnification. The good news is that the eye relief of the system is the eye relief of the eyepiece alone. So, for high power it is much easier to use a 10mm eyepiece and a 2X Barlow than it is to use a 5mm eyepiece and its’ short eye relief.\nThis is a great idea and I have owned a Barlow since my first scope, but there are limits. I find that Barlows which more than double the power are also introducing too many optical aberrations to the viewing system to allow me to believe I am seeing more detail than I saw without the Barlow in place. So, use your Barlow in moderation and purchase a Barlow that magnifies either 1.8X or 2X and it will prove a very useful device.\nNow that you have acquired all this knowledge about eyepieces, I’ll bet you are still left with the same question “which ones do I buy?”. That is a tough query, but I will give you my opinion. If you are just getting started, purchase three eyepieces and a Barlow lens in the beginning. Buy one low power, wide field eyepiece which has a focal length between 25mm and 20mm. Get one medium power eyepiece, from 16mm to 12mm. Buy one high power eyepiece, from 9mm to 6mm focal length. Get a Barlow lens with a magnification of either 1.8X or 2X. With those four things you will be prepared to observe a wide variety of what there is to see in the sky.\nAs time goes by you can fill in as much as your budget will allow. You might choose a really wide field 32mm to 35mm eyepiece. Or maybe something between the medium and the high power. I know that if you are just getting started, you might be thinking about a very high power eyepiece in the range of 4mm focal length. Even though it seems nifty to have a scope that can go to 600X, the number of evenings steady enough to use extreme magnifications is rare. You can make use of very high power occasionally, but not often.\nWhat design of eyepiece to purchase is the subject of much talk while astronomers compare eyepieces and determine how much money they have to spent. If you can afford it, at least start with a medium power Plossl, a high power Orthoscopic, and a wide field Erfle. If you are really in a pinch for money then Kellners will suffice. However, if you go out and observe with other folks who have better eyepieces than yours, it can be an expensive trip. One spectacular view through someone’s brand new pride and joy eyepiece can have you looking through catalogs and checking the limit on your credit card.\nI have had a variety of different eyepieces in the 20 years that I have been using telescopes. My first scope was an 8 inch f/6 and it had a 1.25″ focuser, so all my eyepieces where that size. I used three Erfles: 20mm, 16mm and 12mm for medium power viewing. When I first got the scope, I did what I have told you not to do, I ordered it with a 4mm eyepiece and never saw a clear view in it. I was able to trade the 4mm for a 6mm Orthoscopic that became a prized eyepiece for looking at fine detail on the Moon and the planets. Once I added a 2X Barlow, I was set and my eyepiece collection changed little for several years.\nWhen I sold the 8″ to finance a 17.5″ Dobsonian (yes, aperture fever got me too), I decided I needed a 2″ focuser and an eyepiece to fit. Luckily, I found a war surplus 38mm Erfle that only needed some machining to make a sleeve that fit the 2″ focuser. A friend with a lathe made the part and I was in business. Again, my eyepiece collection seemed complete for a while.\nIn the 80’s the Nagler revolution hit. The first 13mm Nagler eyepieces I used had a problem that was serious for some observers, including me. Some folks see a “kidney bean”, a dark marking withing the field of view, which will not go away regardless how the observer moves their eye or head. I did not view this as a problem, because it prevented me from spending the money for these expensive eyepieces.\nHowever, Meade decided to release its Ultra Wide series and I got a chance to use the 14mm at Riverside. That was the final straw. The wide field of view, generous eye relief and excellent contrast of these eyepieces sold me. I found someone to purchase my old eyepieces and I have recently completed the set of Ultra Wide eyepieces. In the same time, I also used and then bought a 22mm Panoptic eyepiece that is excellent in my 13″ f/5.6 Newtonian. The wide, flat, contrasty field of view of the Panoptic is stunning and it has become one of my favorite eyepieces. Now that I know how good the Panoptic design is, I plan to upgrade my widest-field eyepiece to a 35mm Panoptic. There is one drawback, it is one of the most expensive eyepieces available. Don’t say you weren’t warned.\nOnce you have purchased the eyepieces which will serve you, make certain they are well cared for. Get some foam padding and cut out cavities to fit the eyepieces and protect them. Be careful when cleaning your eyepieces. Never rub them with any real force, always gently, or you will scratch the coating. Use a squeeze bulb or canned air to blow off any dust before cleaning. I use a cleaning rag I purchased at a camera store which does an excellent job removing greasy fingerprints which inevitably happen.\nIf you are thoughtful in purchasing good eyepieces and then protecting them from the elements, they will last many years and provide you with spectacular views of the heavens.","domain":"optical_engineering"}
{"url":"http://www.pulsar-optics.com/pulsar-dfa75.html","date":"2016-10-23T22:06:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988719437.30/warc/CC-MAIN-20161020183839-00262-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.8872122764587402,"token_count":434,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__35507366","lang":"en","text":"Pulsar DFA Digital Night Vision Riflescope Attachment\nThe digital night vision attachment Forward DFA75 is designed for fast and easy conversion of a day optical sight into a night riflescope. To install the Forward DFA75 onto the front optical bell of a day telescopic sight, specially designed adapters (bought separately) with various diameters with a set of inserts are used.\nThe adapter is permanently attached to the optical bell of a telescopic sight. This allows the Forward DFA75 attachment to be quickly installed in front of the lens for nighttime shooting. The device uses a highly sensitive CCD array; the image transmitted to the high resolution display OLED is contrasting, crisp and saturated. Thanks to the OLED display (640x480 pixels) the Forward DFA75 can be used within a wide temperature range from -20 °С to +50 °С.\nThe digital night vision attachment Forward DFA features various image settings: brightnessand contrast level adjustment (from 0 to 20), sensitivity enhancement. It allows the image to be adjusted for specific application.\nThe main menu of the Forward DFA includes various functions such as: set-up, check and adjustment of the aiming point, “Horizon” adjustment function. Icons on the data panel show operational status of the device (active functions, low battery indicator).\nThe Forward DFA75 features a video output to conduct video recording to external devices. The output video signal standard can be changed in the main menu (from PAL to NTSC).\nThe digital night vision attachment Forward DFA75 operates on four rechargeable batteries but can also be powered with an external power supply. Basic control functions (switching on/off the device and the IR Illuminator, activation of “SumLightTM“ (program) can be performed with the help of the included programmable wireless remote control.\nWhen coupled with the Pulsar 10x32 monocular the device can operate as a 10x-power digital night vision device.\nThe attachment is designed for professional and amateur use: hunting, observation, security, law enforcement.","domain":"optical_engineering"}
{"url":"http://www.arsanatomica.lib.ed.ac.uk/techspec.html","date":"2023-03-22T23:25:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944452.97/warc/CC-MAIN-20230322211955-20230323001955-00212.warc.gz","language_score":0.8245590925216675,"token_count":767,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__95085085","lang":"en","text":"Images displayed on this site were created by Steven Gough\nand Susan Pettigrew of the Digital Imaging Unit of Edinburgh University Library, 2001-2004.\nDigital camera back: Phase One PowerPhase\nResolution: 7072 x 7072 pixels\nUninterpolated files (max 143.3 Mb; min 300ppi)\n56mm x 56mm frame capture area\n42bit internal colour depth, 14 bit per colour precision\nNative File format: Uncompressed TIFF\nfiles with Motorola (Mac) or Intel (PC) byte order and header version 6\nCapture software: Phase One version\n3.1.1 for Power Macintosh\nCamera body: Hasselblad 501CM\nLens: Zeiss 80mm (plus 8mm and 16mm\nextension tubes for close-up work)\nCapture: Power Mac G4 400Mhz/Apple 21\ninch Studio Monitor with ColorSync\nPost-capture edits: Adobe Photoshop\n5.0 - CS\nTest charts: Standard Kodak\nQ13 colour separation guide (with metric and imperial scales) and grey\nscale for reflected work\nLighting: 2 Photon Beard 'Highlight'\nstudio lights: these are cool running, flicker free, 5,400k balanced fluorescent\nlamps, with a variable output of 2 tubes (110W), 4 tubes (220W), or 6\ntubes (330W). This high colour rendering index (Ra 98) (2)\nlight source is designed for digital imaging. The lights\nare fitted with Perspex safety screens.\nLight levels: Using just 4 tubes per light, the measure\nof Lux @ 1m = 10,666 and at 2m = 3,332. Thus at 1m for 15 minutes the\nitem being imaged would be subject to 2,666 lux-hrs. (By comparison, the\nstandard museum light level for sensitive works on paper is 50 lux. For\n6 weeks display at this level (6-day week, 12-hour day) the object would\nbe subject to 26,500 lux-hrs per exhibition). Also, the lights are equipped\nwith reflective barn door units. These are employed to screen the object\nfrom light outside the actual scanning periods, thus reducing light exposure\nto an estimated 2,000 lux-hrs.\nHeat rise: A preview scan is obtained in circa 15 seconds.\nThe scan time for a full high resolution (143Mb) image file is typically\n5-6 minutes using 4 tubes per light. The rise in temperature at the surface\nof the copy table during a typical 15 minute total scanning period using\n4 tubes per light at 1m (i.e. 10,666 Lux) at no time exceeds 1.25 degrees\nC. Tests on-site show that the temperature at the object point on the\ncopy table is not more than 1.5 degrees C above the ambient temperature\nof the room at any time.\nArchival equipment: Studio copy table with\nmatt black, soft velvet top surface; Clarkson book supports for bound\nitems (large and medium sets), plus snakes; unbleached pure cotton gloves.\n(1) These specifications conform to the Code of Practice\nfor the Submission of Digital Imagery as defined by the Digital Imaging\nGroup of the Association of Photographers (November 1999). [Back]\n(2) A measure of the colour shift objects undergo when\nilluminated by a light source as compared with the colour of those same\nobjects when illuminated by a reference source (daylight) at the same colour\ntemperature. The index range is from 0 (max shift) to 100 (no shift). [Back]","domain":"optical_engineering"}
{"url":"https://en.radar-electronics.com/products1/preview-camera-monitor-systems","date":"2021-10-28T19:51:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588526.57/warc/CC-MAIN-20211028193601-20211028223601-00401.warc.gz","language_score":0.8801530003547668,"token_count":484,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__186129100","lang":"en","text":"PREVIEW CAMERA MONITOR SYSTEMS\nAdd Object Detection to Your Vision System\nDid you know that camera monitor systems are classified as a “passive safety technology“? Passive safety technology requires operator engagement to be successful. This makes sense, right? Your monitor isn’t going to alert you to a person or object in your path. You have to be viewing your monitor to see that person or object.\nCombining vision systems with active safety systems, such as object detection radar, provide equipment operators with active alerts (alerts that don’t require their engagement) so they can avoid potential collisions with people or property.\nPREVIEW PLUS - CAMERA MONITOR SYSTEM\nPlus provides operators with a heavy duty, all-in-one safety system. By\nintegrating a camera and monitor with Radar Electronics patented radar sensor,\noperators have a single solution for active blind spot monitoring. PreView Plus\nsupports up to 4 cameras and 24 sensors for 360° vehicle coverage.\n- All-in-one blind spot detection, active warning & visual clarification\n- Connect directly to latest PreView radar sensor(s)\n- Color coded indicators overlay on screen to give operator approximate distance information\n- Audible alert can be acknowledged by operator with a simple press of a button on the monitor\nPREVIEW MONITRO 5 HD\nOur heavy-duty 5″ monitor is waterproof and can support up to three cameras. The monitor can switch between all three camera views when turn signals or reverse is engaged.\nOur light-duty monitor is best suited for enclosed cab use. Great for on-road fleet vehicles that don’t require a weather resistant outer shell.\nBuilt to withstand the cold and rain so your drivers are never without sight in their blind spots. The PreView HD Cam operates in low light and has a built-in heater to help keep weather conditions at bay.\nPREVIEW MINI CAM\nWith three field of view options – 120°/150°/180° – this compact camera allows for easy 360-degree blind spot coverage with the addition of multiple cameras.\nTurn your existing camera monitor system into an active safety system\nPreView VideoLink provides the intelligent technology to connect existing camera monitor systems to Radar Electronics radar. Adding radar-based object detection technology to your blind spot reduction system ensures an uncompromising safety solution.","domain":"optical_engineering"}
{"url":"http://bernardosbagofbeans.com/2014/01/google-introduces-help-diabetics-smart-contact-lenses.html","date":"2018-02-18T05:19:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891811655.65/warc/CC-MAIN-20180218042652-20180218062652-00797.warc.gz","language_score":0.9311149716377258,"token_count":240,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__251271123","lang":"en","text":"Google introduces help for diabetics – smart contact lenses\nSmart technology is becoming a norm. We’ve got smart phones, smart watches, homes, cars and now Google is now adding contact lenses to the list; a device that could be the envy of every diabetic’s eye.\nYes, the creators of Google glasses are now embarking on a new project – the smart contact lens and according to their blog; it’s all in the name of health.\nStill in testing phase, the lens is designed to measure glucose levels in tears using a tiny wireless chip and a miniaturised glucose sensor embedded between two layers of soft contact lens material.\nThe prototypes tested can produce a reading once per second and they are exploring the possibility of an early warning system for the wearer by integrating tiny light emitting diodes (LED) which would light up to indicate glucose thresholds.\nThe project is still in the early days and there are still discussions with US authorities but the founders of the project, Brian Otis and Babak Parviz, are optimistic that it will lead to a new way for people with diabetes to manage their disease.\nRelated articles across the web","domain":"optical_engineering"}
{"url":"https://heyermedical.de/en/product/purelite-ol9500/","date":"2022-09-25T01:01:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334332.96/warc/CC-MAIN-20220925004536-20220925034536-00669.warc.gz","language_score":0.7954208254814148,"token_count":433,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__149637594","lang":"en","text":"LED Surgical Lights\nPurelit OL9500 is a surgical light with advanced technology, meeting the requirement of high-end users.\n- 15 patents obtained\n- Received Red Star Design Award 2010\n- High-tech Produce Star by Beijing Government in 2013\nFeatures & benefits\nIt is easy to use with shadowless effect. Its design also minimizes overheating and optimizes airflow for better hygiene.\nIt has transparent light screen with special coating which allows easier cleaning and sterilization on\nall surfaces. Imported spring arm ensures the high product quality.\nIts advanced patent focus technology enables clear vision of cavity.\nIts white LED light with no colored cast shadows guarantees clear vision of tissues.\nIt has separately controlled multi-lens matrix electronic circuit to prevent total light malfunctioning, ensuring patient safety.\nIts control panel is easy to operate which provides unparalleled experience for surgeons.\nIt has long LED life expectancy which makes the product more reliable and cost-effective.\nLow power consumption and durable LEDs minimize the impact to our environment.\nIt supports low height ceiling mounting and it is compatible with HD camera.\n|Revolving arm||vertical axis 360°|\n|Color rendering Index Ra（%）||95%±3%|\n|Color rendering Index R9（%）||95%±3%|\n|Standard Installation height||3 meters|\n|Large light head||160pcs LED, diameter 700mm, 21kg|\n|Small light head||80pcs LED, diameter 500mm, 12kg|\nAll documents about our productPurelit OL9500download here.\nYou can send general inquiries about this product to us here.","domain":"optical_engineering"}
{"url":"https://seeeyeclinic.com/service/corneal-topography/","date":"2024-04-20T20:39:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817674.12/warc/CC-MAIN-20240420184033-20240420214033-00865.warc.gz","language_score":0.910769522190094,"token_count":324,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__86200092","lang":"en","text":"An Essential Eye Care Technology\nAt See Eye Clinic, we’re committed to using a comprehensive array of tools, techniques and technologies to help you achieve clear vision and manage your eye health.\nOne of these technologies includes corneal topography, which is essential for helping us examine the health of your cornea and detecting issues that may affect your vision. Corneal topography is a staple of our practice, where we use it for eye exams, contact lens fittings, laser eye surgery consultations and eye disease diagnosis.\nBook an appointment at See Eye Clinic today to learn more about your eye health and vision.\nWhat Is Corneal Topography?\nCorneal topography is a non-invasive imaging technique that helps our team map out the surface of your cornea and detects issues like:\nWhy Is Your Cornea Important?\nThink of your cornea as the window light has to pass through to reach your retina. If your cornea has an irregular shape or has developed an infection, it can lead to visual errors or even eye discomfort.\nTo examine your cornea with the corneal topographer, we’ll have you rest your head on the chin rest of the device. While you focus on a fixed object, we can take a highly detailed digital image that maps out your cornea’s size, shape and health.\nGet Help with Your Vision & Eye Health Today\nIf you’re interested in contact lenses or even laser eye surgery, corneal topography is essential for determining your candidacy and detecting issues affecting your vision.","domain":"optical_engineering"}
{"url":"http://igeekz.in/2013/04/22/fujifilm-has-launched-two-new-cameras-finepix-x20-and-x100s-in-india/","date":"2019-03-22T15:33:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202671.79/warc/CC-MAIN-20190322135230-20190322161230-00277.warc.gz","language_score":0.930627167224884,"token_count":501,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__152959734","lang":"en","text":"Fujifilm India has launched two new cameras FinePix X100S and FinePix X20 in the country.\nFujifilm FinePix X100S is the successor to FinePix X100, inheriting the X100’s high-performance lens, while adding a higher-definition hybrid viewfinder and a new sensor as well as image processor. The newly developed 16.3-megapixel APS-C X-Trans CMOS II sensor and EXR Processor II increase resolution by approximately 25% and reduce noise by more than 30%, as per company’s own estimates.\nThe highlight of the FinePix X100S is the AF in as little as 0.08 seconds. Additionally, the EXR Processor II offers fast response times with a start-up time of only approximately 0.5 seconds, a shooting interval of 0.5 seconds, and a shutter time lag of only 0.01 seconds.\nFujifilm FinePix X100S comes with a Hybrid Viewfinder that combines both an optical and an electronic Viewfinder. Making use of the in-built phase detection pixels for AF action, the X100S offers a “Digital Split Image” feature, which displays dual images on the left and right to be lined up for manual focusing. This enables accurate focusing especially when working with an open aperture or macro shooting.\nThe Fujifilm FinePix X100S comes with a Fujinon 23mm F2 lens and is priced at Rs 74,999.\nFujifilm also unveiled FinePix X20, successor to the popular FinePix X10. It comes with the newly-developed 12-megapixel 2/3-inch X-Trans CMOS II sensor and EXR Processor II, which increase resolution by approximately 20% and reduce noise by more than 30%. The X20 boasts of just 0.06 seconds AF, and is as fast as the X100 in the rest of the specs.\nFujifilm FinePix X20 comes with a F2.0-2.8 4x manual barrel zoom lens and is priced at Rs. 39,999.\nFujifilm had originally showcased the FinePix X100S and FinePix X20 at CES in Las Vegas, alongside its other recent launches the FinePix SL1000 and FinePix HS50EXR.","domain":"optical_engineering"}
{"url":"https://search.yahoo.co.jp/search;_ylt=A7dPGT4hjPNW3gMAAZ6JBtF7?p=OLED%E3%80%80%EF%BE%98%EF%BE%8C%EF%BE%9A%EF%BD%B8%EF%BE%80&search.x=1&fr=top_ga1_sa&tid=top_ga1_sa&ei=UTF-8&aq=&oq=&afs=","date":"2022-06-28T18:44:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103573995.30/warc/CC-MAIN-20220628173131-20220628203131-00495.warc.gz","language_score":0.7579601407051086,"token_count":790,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__15951082","lang":"en","text":"OLED ﾘﾌﾚｸﾀ で検索した結果 1〜10件目 / 約2,550,000件 - 0.46秒\n- Antireflective circular polarizers in OLED display - Lumerical Support\nFor simplicity, the multi-layer OLED structure is represented by a metallic reflector. The light incident on the linear polarizer become 30 o linearly-polarized ...https://support.lumerical.com > en-us > articles > 5845...\n- Metasurface-driven OLED displays beyond 10,000 pixels per inch\nJoo et al. developed a full-color, high-brightness OLED design based on an engineered metasurface as a tunable back-reflector. An ultrahigh density of ...https://www.science.org > doi > abs > science.abc8530\n- LED Curing for OLED Encapsulation - Phoseon Technology\nOrganic Light Emitting Diodes (OLED) devices are becoming widely desirable and have been ... The solution included a customized reflector to achieve more.https://phoseon.com > Phoseon-App-Note_OLED-Encapsulation-Curing\n- LG CX 65 inch Class 4K Smart OLED TV w/ AI ThinQ® (64.5\" Diag)\nWhy LG OLED? Only OLED TVs use over 8.3 million pixels that emit their own light and turn completely off, creating a stunning picture that allows you to see ...https://www.lg.com > ... > TV/Video > TVs > OLED TVs\n- High-color-purity UV OLED has asymmetric microcavity design\n-An asymmetric structural design with a tailored distributed Bragg reflector (DBR) structure gives a UV OLED a narrow bandwidth of 9.95 to ...https://www.laserfocusworld.com > article > highcolorp...\n- OLED Display Materials - DuPont\nIn turn, as demand for OLED display panels increases, more panel suppliers are focusing on OLED displays. For this market movement to continue, developers need ...https://www.dupont.com > oled-display-materials\n- LCD and OLED - Rain Technology\n... manufacturable functionalities and performance to LCD and OLED. ... Our switchable off-axis reflector allows us to control both transmitted luminance ...https://www.raintechnology.com > lcd-and-oled\n- QLED vs OLED | Difference between QLED TV and OLED TV\nbacklight panel, reflector, polarising filter, TFT array, colour filter glass, quantum dots colour filter and polarising filter. • Backlight panel: It ...https://www.rfwireless-world.com > QLED-vs-OLED\n- Flexible top-emitting organic light emitting diodes with a functional ...\n-We demonstrated top-emitting OLEDs with a highly reflective distributed Bragg reflector (DBR) using a metal foil substrate.https://pubs.rsc.org > content > articlehtml\n- OLED vs LCD: Smartphone Display Teardown and Comparison\n-Apple produced its first smartphone with an OLED display joining Samsung, Google, and LG in ...https://www.youtube.com/watch?v=JZ_hSMivZDY\nCopyright (C) 2022 Yahoo Japan Corporation. All Rights Reserved.","domain":"optical_engineering"}
{"url":"https://bluewater.co.ke/2023/07/21/finest-optics-for-ak47/","date":"2023-12-03T11:41:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100499.43/warc/CC-MAIN-20231203094028-20231203124028-00381.warc.gz","language_score":0.9202869534492493,"token_count":3269,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__165251182","lang":"en","text":"Finest Optics For AK47\nTrying to improve your capturing experience with your AK47? Take a look at locating the best optics for your personal gun. The correct optics can significantly increase your accuracy, focus on investment, and efficiency on the variety or in the area. But considering the variety of options available, it might be mind-boggling to find the excellent optics for your personal AK47. That’s where we are available in. With this information, we shall explore the top optics for AK47s, taking into consideration variables including clearness, toughness, and convenience. Whether or not you’re a seasoned shooter or just starting, we’ll be useful for finding the optic that fits your specific requirements and price range. So get able to take your AK47 one stage further and open its whole possible with all the greatest optics on the market.\nSignificance of Optics in AK47 Capturing\nWhen it comes to shooting your AK47, having the right optics could make a huge difference. Optics supply you with a very clear and specific eyesight image, helping you to get focuses on faster plus more accurately. Additionally, they improve your capability to capture at longer distances, providing you with a position both in seeking and strategic conditions. Using the right optics, you are able to take full advantage of the chance of your AK47 and acquire your capturing capabilities to another level.\nOne of many main benefits of using optics on the AK47 is improved precision. Metal scenery can be tough to use, especially in reduced-gentle situations or when capturing at longer ranges. Optics, on the other hand, give a clear and vibrant eyesight snapshot, making it easier to align your chance thus hitting your target consistently. Whether you’re a competing shooter or possibly a hunter, having optics on your own AK47 can greatly enhance your reliability and raise the likelihood of good results.\nAnother vital element of employing optics on your AK47 is objective purchase. Having a reddish colored dot sight or reflex sight, it is possible to quickly and effortlessly obtain goals, specifically in speedy-paced or near-quarters circumstances. The illuminated reticle lets you maintain both view available, providing you with a broader area of look at and increased situational understanding. This could be particularly useful in personal-protection conditions or when fascinating multiple concentrates on. Optics allow you to react faster and engage focuses on better, supplying you with an important advantages in any shooting condition.\nAs well as reliability and focus on acquisition, optics also play a crucial role within the efficiency of your AK47. The right optics can improve your taking pictures velocity, decrease eye pressure, and increase your taking pictures experience. With functions like adjustable lumination adjustments, nice eyes relief, and tough building, optics for AK47s are designed to withstand the recoil and unpleasant problems that are included with capturing a strong gun. By using great-quality optics, you can ensure your AK47 executes at its finest so you get the best from your snapping shots periods.\nConsiderations When Selecting Optics for AK47\nWith regards to deciding on optics for the AK47, there are various considerations. These factors can help you narrow down the options and locate the optic that matches your requirements and personal preferences. Here are some important aspects to remember:\n- Purpose: Think about how you program to use your AK47. Are you presently primarily a target shooter, a hunter, or somebody that demands a versatile optic for a number of shooting situations? Various optics excel in distinct software, so it’s vital to select one that aligns together with your capturing objectives.\n- Clarity and Reticle: Search for optics with crystal clear and clean cup that provides a sharp eyesight snapshot. The reticle needs to be easy to understand and make use of, regardless of whether it’s a normal crosshair, a reddish dot, or even a holographic view. Consider the dimension and style of the reticle that works the best for your snapping shots type.\n- Durability: AK47s provide ruggedness, which means that your optics should be equally resilient. Search for optics that happen to be shockproof, waterproof, and resistant to fogging. They should be able to withstand the recoil of the gun and handle hard dealing with from the field.\n- Magnification: Make a decision no matter if you will need a magnified optic or possibly a non-magnified a single. Magnified optics are fantastic for extended-range snapping shots, when non-magnified optics like red-colored dot scenery and reflex places succeed in shut-quarters battle and fast target purchase.\n- Mounting Possibilities: Consider the mounting possibilities for that optics you are looking at. AK47s typically make use of a side rail or a Picatinny rail method for installing extras. Ensure that the optic you select works with your rifle’s installing process.\nBy contemplating these factors, you can narrow down the options and locate an optic that suits your unique shooting needs and tastes.\nTop Optics Brands for AK47\nIn terms of optics for AK47s, some brand names established themselves as leaders in the business. These brand names are known for their high quality, durability, and gratifaction. Let’s look into some of the top optics companies for AK47:\n- Aimpoint: Aimpoint is actually a recognized company that are experts in red dot scenery. Their optics are known for their exceptional battery lifespan, ruggedness, and dependability. Aimpoint reddish colored dot scenery are traditionally used by army and law enforcement staff around the globe.\n- EOTech: EOTech is an additional top company that gives holographic sights for AK47s. EOTech optics provide large and very clear reticles, quickly goal investment, and sturdiness. These are well-liked by shooters who call for fast proposal of focuses on.\n- Vortex Optics: Vortex Optics delivers a variety of optics for a variety of capturing software, which include AK47s. Their optics are known for their outstanding good value, crystal clear window, and sturdy design. Vortex Optics can be a preferred choice among spending budget-sensitive shooters who don’t wish to compromise on top quality.\n- Trijicon: Trijicon is actually a reliable manufacturer that companies both magnified scopes and reflex places for AK47s. Their optics provide top quality, lumination, and ruggedness. Trijicon optics are frequently liked by law enforcement officials and military services personnel.\nThese are just several instances of top rated optics brands for AK47s. Every single manufacturer does have its exclusive functions and strengths, so it’s essential to analysis and evaluate different models to find the one that best fits your taking pictures requires.\nRed-colored Dot Points of interest for AK47\nRed dot places certainly are a preferred option for AK47s because of their simplicity, pace, and convenience. These optics provide a very clear reddish colored dot reticle that is certainly superimposed on the focus on, allowing for quick and accurate Where are Sig Sauer guns created? – Blue Water Wells Limited goal investment. Here are several top rated red dot points of interest for AK47s:\n- Aimpoint PRO (Patrol Rifle Optic): The Aimpoint PRO can be a highly regarded red-colored dot eyesight that offers a 2 MOA red dot reticle. It comes with a extended battery lifespan as high as 30,000 hours, a strong building, and excellent lucidity. The PRO is for professional use and is renowned for its dependability and durability.\n- EOTech XPS2: The EOTech XPS2 is actually a lightweight holographic view which offers a precise and large 1 MOA red-colored dot reticle. It offers endless eye alleviation, speedy focus on acquisition, along with a long lasting building. The XPS2 is popular with shooters who demand speedy proposal of focuses on in near-quarters situations.\n- Vortex Crossfire Red-colored Dot Vision: The Vortex Crossfire is surely an reasonably priced reddish dot eyesight that offers a 2 MOA red-colored dot reticle. It possesses a very long battery life, a durable development, as well as a very clear sight photo. The Crossfire is a wonderful access-stage choice for shooters on a tight budget.\nThese are just several samples of red-colored dot points of interest for AK47s. Each and every optic has its own unique characteristics and advantages, so it’s vital to look at your shooting needs and preferences when choosing the right red-colored dot view for the AK47.\nMagnified Scopes for AK47\nIf you’re seeking to take part concentrates on at longer distance, a magnified scope might be a activity-changer for your personal AK47. Magnified scopes supply elevated magnification, enabling you to see goals a lot more clearly making exact pictures. Here are some best magnified scopes for AK47s:\n- Trijicon ACOG (Advanced Combat Visual Gunsight): The Trijicon ACOG is really a battle-established magnified scale that provides a fixed magnification and a tough construction. It provides a variety-locating reticle as well as a vibrant lit chevron for fast target purchase. The ACOG is traditionally used by military services workers and is renowned for its longevity and reliability.\n- Vortex Viper PST (Preciseness Taking pictures Tactical): The Vortex Viper PST is really a flexible magnified scope that gives adjustable magnification and a very clear sight snapshot. It possesses a glass-imprinted reticle, changeable turrets, as well as a robust development. The Viper PST is popular with accuracy and precision shooters who call for a great-high quality scale for very long-collection engagements.\n- Nikon ProStaff P3 : The Nikon ProStaff P3 is definitely an reasonably priced magnified scale that gives a varied magnification collection as well as a bright vision snapshot. It comes with a BDC (Bullet Decrease Settlement) reticle, large eyes reduction, along with a resilient development. The ProStaff P3 is a wonderful selection for shooters with limited funds who still desire a reputable and precise extent.\nThese are merely a few samples of magnified scopes for AK47s. Depending on your snapping shots demands and tastes, you may pick a scale having a fixed magnification or a adjustable magnification to match your specific requirements.\nReflex Places for AK47\nReflex scenery are another popular choice for AK47s, supplying a mix of pace and precision. These scenery give a clear reticle which is forecasted onto a lens, enabling rapid objective acquisition and both-eyeballs-open capturing. Below are a few top reflex points of interest for AK47s:\n- Holosun HS510C: The Holosun HS510C is a flexible reflex eyesight that provides a big and very clear reticle. It features solar technology technological innovation, several reticle choices, along with a long lasting construction. The HS510C is renowned for its long battery and trustworthiness.\n- Trijicon RMR (Ruggedized Miniature Reflex): The Trijicon RMR is actually a lightweight reflex sight that provides a little but vibrant reticle. It possesses a tough construction, adjustable lighting adjustments, and a broad field of see. The RMR is liked by shooters who need a portable and light-weight optic for their AK47.\n- Vortex Venom: The Vortex Venom is actually a spending budget-pleasant reflex sight that gives a vibrant and obvious reticle. It features a leading-packing electric battery compartment, adjustable lighting options, along with a resilient development. The Venom is a great choice for shooters on a budget who still need a reliable and exact reflex view.\nThese are merely several examples of reflex sights for AK47s. Every single optic does have its distinctive functions and positive aspects, so it’s essential to think about your snapping shots type and personal preferences when selecting the best reflex view for your AK47.\nStrategies for Mounting Optics on AK47\nInstallation optics by using an AK47 calls for some concern because of the rifle’s style and also the available installing alternatives. Follow this advice that will help you attach your optics securely and effectively:\n- Pick the best Mount: AK47s typically work with a aspect rail or even a Picatinny rail system for mounting components. Ensure that the position you choose works with your rifle’s rail process. Select a install that provides a secure and repeatable attachment.\n- Properly Line-up the Optic: When mounting your optic, guarantee that it is properly aligned together with the bore in the rifle. This will assist be sure that your shots are saved to focus on and you get the most from your optic’s performance.\n- Use Loctite: To stop your optic from approaching reduce on account of recoil, consider utilizing a thread locker like Loctite about the installation screws. This will help protected the anchoring screws set up which will help prevent any activity during snapping shots.\n- Check out Appropriate Vision Alleviation: When installation your optic, make sure that you get the suitable eyes alleviation. This is the distance involving the eye along with the optic’s lenses. Having the correct eye comfort will help you maintain a very clear view image and avoid any irritation or eyes tension.\nBy simply following the following tips, you are able to make sure that your optics are securely attached to your AK47, enabling you to capture with confidence and accuracy and precision.\nVery best Optics for too long-Range Taking pictures with AK47\nIf you’re seeking to participate targets at extended distances with your AK47, a magnified scale is the best choice. On this page are the greatest optics for very long-collection shooting with AK47s:\n- Trijicon ACOG (Sophisticated Overcome Eye Gunsight): The Trijicon ACOG is really a combat-proven magnified range which offers a set magnification as well as a collection-getting reticle. It offers exceptional lucidity, a vibrant lit up chevron, and a durable construction. The ACOG is trustworthy by military employees and is renowned for its reliability and bullet decline payment.\n- Vortex Viper PST (Precision Shooting Tactical): The Vortex Viper PST can be a high-high quality magnified extent that offers changeable magnification as well as a clear view photo. It provides a cup-etched reticle, variable turrets, plus a tough development. The Viper PST is liked by precision shooters who call for a extent that will persistently provide exact shots at extended distances.\n- Leupold VX-3i: The Leupold VX-3i is really a premium magnified scale that gives excellent optical efficiency plus a wide magnification variety. It possesses a Twilight Max Gentle Control Program for increased low-light visibility, a accurate windage and elevation adjustment, plus a long lasting construction. The VX-3i can be a leading choice for shooters who need the most effective in eye high quality and long-variety accuracy.\nThese optics are made to offer outstanding lucidity, exact adjustments, and dependable performance at lengthy distances. By using one of these optics, you are able to increase the very long-range capabilities of your respective AK47 and consider your snapping shots capabilities to new height.\nVery best Optics for Near-Quarters Battle with AK47\nIf you’re primarily with your AK47 for shut-quarters combat or fast objective investment, a non-magnified optic like a reddish colored dot vision or even a reflex eyesight is the ideal solution. On this page are among the best optics for shut-quarters fight with AK47s:\n- Aimpoint PRO (Patrol Rifle Optic): The Aimpoint PRO can be a highly","domain":"optical_engineering"}
{"url":"http://pd.hakyungsoft.com/shop/ProdDetail.php?PMInc=539362","date":"2022-07-06T04:11:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104660626.98/warc/CC-MAIN-20220706030209-20220706060209-00120.warc.gz","language_score":0.7963508367538452,"token_count":836,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__69004575","lang":"en","text":"Rokinon 10mm F2.8 ED AS NCS CS Ultra Wide Angle Lens Canon EF-S Type for Canon Digital SLR Cameras (10M-C)\n상품 주요 정보\nNano Crystal coating system (n's) for increased light transmission and reduced internal Reflections\nMaximum diameter: 3. 43 inches (87mm). fast F28 maximum aperture close-focusing to 95 inches = maximum versatility in all shooting conditions\nOptimized for excellent optical quality and true ultra-wide 106 Degree edge to edge coverage with Canon APS-C sensor digital cameras\nUtilizes 3 high precision (2 aspherical 1 ED) Lens elements for superior image quality\nInner focusing system (if) length doesn't change and front element does not rotate keeps integrated petal-type lens hood properly oriented\nRokinon's 10mm F2.8 Ultra Wide Angle Lens is the newest addition to its highly regarded assortment of prime, fixed mount, wide angle lenses. Specifically designed for APS-C cameras, it utilizes a Nano Crystal Anti-Reflection Coating System, Aspherical Lens Elements and Extra Low Dispersion Glass to provide a high performance frame filling ultra wide view equivalent to a 15mm lens (16mm for Canon APS-C DSLR’s) on a full frame camera. The 106 degree angle of view with its fast f/2.8 aperture provides the performance required by architectural and landscape photographers to capture dramatic perspectives while its extreme depth of field and 9.5” (.24m) close focus capability allow commercial photographers and journalists working in tight spaces to get that needed shot. For full frame Canon cameras, see Rokinon's Canon EF Type 14mm F2.8 lens. Minimum focusing distance: 9.45 inch\nULTRA WIDE ANGLE\nThe Rokinon 10mm f/2.8 ED AS NCS CS Lens is a prime, manual focus wide-angle lens designed specifically for use with APS-C sized image sensors.\nYour browser does not support the video tag.\nULTRA WIDE ANGLE\nProviding a 35mm-equivalent focal length of 16mm and a broad 105.9° angle of view, this lens is ideally suited for interior, architectural, and landscape photography applications.\n조리개 범위 F2.8 - F22\n조리개 날 6\n코팅 울트라 멀티 코팅\n최소 초점 거리 0.24m(9.45인치)\n렌즈 후드 내장 꽃잎 모양\n최대 직경 87mm(3.43인치)\n필터 크기 해당 사항 없음\n광학 구조 9개 그룹의 14개 요소\n특수 요소 2개의 ASP, 1개의 ED\n화각 Canon APS-C: 105.9° / APS-C: 109.5° / 4/3: 93.4°\"","domain":"optical_engineering"}
{"url":"http://www.optosun.com/","date":"2014-04-18T20:56:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00012-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9029285311698914,"token_count":504,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__76188087","lang":"en","text":"They are manufactured by our own imported machines. Our 1300-square-meter factory can output 15KK LEDs and 70K LED lighting monthly, that guarantee we can handle your large orders in a short period of time. The LED chips used are well-know brand to ensure quality, and we have various types of SMDs for your selection, such as SMD335, SMD3014, SMD3020, SMD3528, SMD5050, SMD5630 etc., which are widely used for led display, led background lighting, led tubes, led strips, led panels and much more we can illustrated.\nLED Tube light\nWe can provide different length of LED tube: 0.6 / 0.9 / 1.2 / 1.5 / 1.8 / 2.4m,the size of LED Tube have T5/T8/T10 etc. LED tube light 8W to 36W for option,\nPatent pending design.\nFlexible LED Strips\nAccording to LED lighting source, flexible LED stripes include SMD 3528 LED stripe lights; SMD 5050 LED strip lights; SMD 335 LED strip lights According to the IP ratio, flexible LED strips include Waterproof led stripes and non-waterproof led strips This product is very flexible in using field. It can be stick at any corner or surface of the objects, very convenient. The flexible led strip light is a kind of low-voltage product, 12V LED stripe and 24V LED strip are available, which can be widely used over the world and it is a good background decorative light products.\nCREE LED Spotlight\nWe have put these LED spotlights into mass production: XRE series and XP series. The socket bases of E27 LED Spotlight, GU10 LED Spot light, MR16 LED Spot light are available. 1X3W, 3X1W,3X2W.PAR20,PAR30.PAR38 are most popular items for high power led spotlight.\nLED Ball Bulbs\nIn our quantity production of LED Bulbs, the bases of LED Bulbs Base can be E27, B22, E14, and there are respectively 4W led bulb , 5W led bulb , 6W led bulb , 7W led bulb light and 9W led PAR30 bulb, 12W led PAR38 lamp, high power led bulbs for choosing.\nLED Grow Lights\nMore information is coming later. Please check frequently.","domain":"optical_engineering"}
{"url":"http://rowanltww247.blog5.net/5277938/eye-surgery","date":"2018-07-16T19:39:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589455.35/warc/CC-MAIN-20180716193516-20180716213516-00487.warc.gz","language_score":0.9536821246147156,"token_count":1300,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__19821277","lang":"en","text":"Eye Surgical procedure has come to be a mainstream method of vision modification, and also this article will describe the benefits and also drawbacks of three different approaches being offered to the medical consumer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis as well as is an eye medical system which completely deals with vision by getting rid of a slim layer of the cornea. This procedure works best on clients with moderate to high degrees of myopia (nearsightedness), low to modest levels of hyperopia (farsightedness) and also astigmatism associated with myopia, and that have thick corneas. It is the most popular medical vision improvement method.\nPeople with normal eye view see things plainly due to the fact that photos are brought right into a proper prime focus by the cornea and also lens of the eye. Preferably, the cornea's curvature is uniformly matched to its length in a normal eye. Individuals with astigmatism, nearsightedness or hyperopia have off-and-on formed corneas, so the items seen are not focused properly. LASIK adjustments corneal shape by precise elimination of corneal tissue, and by doing so deals with the eyes' concentrating power.\nThere are, nevertheless, risks to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this takes place, it is typically because the person had a pre-existing condition which needs to have prevented the surgery to begin with, such as pregnancy, cataracts, joint inflammation, diabetes, glaucoma, or lupus. Individuals with large students are additionally bad candidates for LASIK. Dry eye disorder will be exacerbated by this procedure.\nA couple of clients whine that they completely see \"ghost\" images, have obscured vision, decreased comparison and also poor evening vision. When LASIK wased initially introduced, 5% of individuals had post-operative complaints; nevertheless, refinements in the procedure have actually caused this rate to drop to much less than 1% if LASIK is done by experienced professionals as well as patients are properly screened prior to surgical treatment. If issues do occur, they could frequently be resoved by a retreatment.\nFDA has authorized LASIK laser eye surgical treatment considering that 1998. While there are a lot of pleased clients, there are nevertheless no long term studies regarding its effects. Realize the constraints as well as the threats of LASIK eye surgery prior to you sigh up for the procedure.\nThough less well known, these tiny implants could boost vision in people with light to modest myopia without the threat of irreversible eye damage integral in the tissue removal technique of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter shape. Though a little less exact than LASIK, they are removeable and exchangeable, so if the person has an unanticipated over- or under-correction, the implant could be gotten rid of and an additional of a different size put to acquire the wanted modification. The implants are located beside the cornea, so the main visual location is completely intact and intact, and the toughness of the cornea is undiminished, making it a better option for pilots and also those that engage in call sports where eye injury is a possibility.\nIntacs disagree for serious nearsightedness and also greater than small astigmatism (1.00 diopters), as the cornea could only be our website stretched so far. If the Intacs are eliminated, vision returns to its preoperative level. Besides vision modification, Intacs are likewise used to deal with keratoconus.\nIntacs are FDA approved and 10 year studies have actually disclosed no significant problems with Intacs as well as very few individual complaints; however, because the treatment takes more training than LASIK, there are fewer eye surgical treatment clinics using it. However, the Intacs website offers a checklist of practitioners in each state, too a couple of in Canada, Europe and also Mexico.\nBecause many individuals do not wish to take the chance of LASIK and also Intacs can not assist those with extreme vision issues, intraocular lens implants (IOL) are a brand-new option approved by the FDA in 2004 to correct moderate to serious nearsightedness. The Craftsmen lens, made by Ophtec, resembles the kind of lens implant utilized to restore vision following cataract eye surgical treatment.\nThe new IOL, called the Artisan, is planned for only patients that have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not change the all-natural lens, yet is put before it. The major trouble discovered with the dental implant was the stable loss of endothelial cells in the corneas of patients who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are essential in maintaining the cornea clear. A three-year study showed a consistent steady loss of endothelial cells of 1.8 percent a year. At this moment, no one could anticipate whether this loss will proceed at the exact same rate indefinitely, or even its influence on corneal feature.\nTo decrease long-term impacts of the tool on the corneal endothelium, the FDA is calling for that the new lenses be identified to define that they ought to only be implanted in individuals whose corneal endothelial cells are thick enough to hold up against minor cell loss.\nMuch more major problems were couple of: retinal detachment (0.6%), cataract growth (0.6%), as well as corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up study of its dental implant patients my website to much better analyze the post-surgical incidence of cataract development, retinal detachment and other ophthalmic conditions.\nThe Artisan lens is meant to be a permanent implant.Though it can be gotten rid of operatively, vision may not always return to just what it was prior to getting the lens. Because it does not affect astigmatism, clients with this trouble could still need glasses.","domain":"optical_engineering"}
{"url":"http://historyproject.org.uk/interview/george-e-hill","date":"2024-04-18T01:41:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00722.warc.gz","language_score":0.9731685519218445,"token_count":155,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__93745016","lang":"en","text":"George E Hill talks about Newman & Sinclair, a manufacturer of film cameras whose first models appeared in 1927.\nThe first model was developed by Arthur Samuel Newman who produced the first camera body from Duralumin, a temperature-resistant, light metal. The first model with a 35-mm objective was user-powered by a removable mechanism. Later models were battery powered. The Newman & Sinclair cameras allowed frame rates between 10 and 24 frames per second.\nThe camera was considered easily handled, due to its relative light weight, and robustness, and for this reason it was considered an optimal camera for news reporting and documentary filming.\nWell known documentary film makers such as Robert J. Flaherty, Humphrey Jennings, Damien Parer, and Basil Wright used this camera.","domain":"optical_engineering"}
{"url":"https://foan.info/2019%3Amicro-wave-photonics","date":"2020-05-27T09:00:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347392142.20/warc/CC-MAIN-20200527075559-20200527105559-00126.warc.gz","language_score":0.8794487714767456,"token_count":361,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__128469723","lang":"en","text":"The explanation of topic:\nThe convergence of radio and optical access networks on a physical layer is leading to a brand new technological field called micro-wave photonics. It will bring new functionalities into asses networks that will enable higher bandwidths and lower latencies. Using integrated micro-wave photonics in optically supported wireless networks can provide solutions that are especially suitable for a high-capacity radio system based on micro-wave and millimeter-wave frequency bands. Current micro-wave photonics communication systems are based on optical fiber and discrete components, which limits high-volume applications. By incorporating these discrete sub-systems into photonic integrated circuits, the integrated micro-wave photonics technology is offering cost and energy efficiency based on a decrease in the size and complexity of the base-stations’ front-end. Besides increasing the capacity integrated micro-wave photonics will enable the flexibility and scalability of 5G mobile and wireless communication networks as well as introducing low latency.\nEach paper will be peer reviewed.\nPapers presented on this special session will be published in FOAN2019 proceeding and be consider to publish in the journal Fiber and Integrated Optics.\nProceeding of FOAN will be sent to IEEE explore\nB. Batagelj, et al., “Convergence of fixed and mobile networks by radio over fibre technology“ Informacije MIDEM, Vol. 41, No. 2, 2011, pp. 144-149, http://www.midem-drustvo.si/Journal%20\nB. Batagelj, et al., “Research Challenges in Optical Communications Towards 2020 and Beyond“ Informacije MIDEM, Vol. 44, No. 3, pp. 177-184,","domain":"optical_engineering"}
{"url":"http://svr-www.eng.cam.ac.uk/reports/abstracts/hollinghurst_tr126.html","date":"2023-12-11T02:57:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103464.86/warc/CC-MAIN-20231211013452-20231211043452-00214.warc.gz","language_score":0.913497269153595,"token_count":415,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__30309475","lang":"en","text":"UNCALIBRATED STEREO HAND-EYE COORDINATION\nNicholas Hollinghurst and Roberto Cipolla\nThis paper describes a system that combines stereo vision with a 5-DOF robotic manipulator, to enable it to locate and reach for objects by sight.\nOur system uses an `Affine Stereo' algorithm, a simple but very robust approximation to the geometry of stereo vision, to estimate positions, shapes and surface orientations. It can be calibrated very easily by observing just four reference points. These are defined by the robot itself, moving the gripper to four known positions (self-calibration).\nThe inevitable small errors are corrected by a feedback mechanism which implements image-based control of the gripper's position and orientation. Integral to this feedback mechanism is the use of affine active contour models which track the real-time motion of the gripper across the two images. Experiments show the system to be remarkably immune to unexpected translations and rotations of the cameras and changes of focal length - even after it has `calibrated' itself.\nA future goal is to use the affine stereo formulation to implement shape-based grasp planning, enabling the robot to pick up a wide range of unidentified objects left in its workspace. At present it can only pick up simple wooden blocks and tracks a single planar contour on its `target object'.\nIf you have difficulty viewing files that end\nwhich are gzip compressed, then you may be able to find\ntools to uncompress them at the gzip\nIf you have difficulty viewing files that are in PostScript, (ending\n'.ps.gz'), then you may be able to\nfind tools to view them at\nWe have attempted to provide automatically generated PDF copies of documents for which only PostScript versions have previously been available. These are clearly marked in the database - due to the nature of the automatic conversion process, they are likely to be badly aliased when viewed at default resolution on screen by acroread.","domain":"optical_engineering"}
{"url":"http://foodsthatburnbellyfat.org/what-are-sunglasses-used-for/","date":"2018-10-20T16:38:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583513009.81/warc/CC-MAIN-20181020163619-20181020185119-00221.warc.gz","language_score":0.940502405166626,"token_count":463,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__921947","lang":"en","text":"It is proved that UV rays and other harmful radiations in the sunlight can cause serious vision problems if people do not take proper measures while going outdoors. Therefore, it is needed to wear sunglasses for better vision safety.\nThe reason why sunglasses can play nice role in blocking harmful rays is firmly linked to their powerful functionality. A pair of qualified sunglasses can really do a good job in UV blocking. But there is still some difference among different types. For example, sunglasses mainly used for cosmetic purposes will do a relatively worse job; those professional sunglass wear can do an ideal job- almost 99% or more UV rays can be blocked. In other words, sunglasses for different purposes vary a lot in functionality- in terms of blocking harmful radiations.\nNot long ago, people have to pay a lot of money for UV blocking, for these sunglasses are relatively expensive. However, everything changes as technique on UV blocking become common. In other words, today’s sunglasses are almost qualified in vision protection.\nIn particular, today’s sunglasses can block UVB rays effectively- UVB is the most harmful radiation in the sunlight. Or blue light can also be well filtered by these sunglasses. Therefore, many UV and Blue light-related vision problems can be avoided by wearing qualified sunglass wear.\nIn the market are now sunglasses made from different manufacturers and designed by different fashion houses. The price varies a lot among different brands, but with similar functionality in blocking harmful rays. That means price does not equal vision safety.\nIn addition, Lenses are some of the most important parts on sunglasses, and they can also be designed in different colors and styles. On the whole, different lenses can offer different feeling of wearing, but vary a lot in functionality. For example, polarized lenses can offer wearers much greater vision safety in blocking glares.\nIf you want to know more about sunglasses, then feel free to visit http://blog.firmoo.com/sunglasses\nFirmoo.com is the fastest growing online community selling affordable yet high quality prescription eyeglasses, discount prescription eyeglasses and other eyewear. Firmoo’s return and refund policy makes your purchase with Firmoo risk-free. Be sure to get your cheap eyeglasses online ready.","domain":"optical_engineering"}
{"url":"https://blog.jholko.com/2013/05/14/canon-200-400mm-f4l-is-pre-production-sample-lens-review/","date":"2023-03-26T19:31:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296946445.46/warc/CC-MAIN-20230326173112-20230326203112-00243.warc.gz","language_score":0.9618531465530396,"token_count":2303,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__264567937","lang":"en","text":"Late in 2012 I wrote a short op ed. blog piece about the pending release of Canon’s new 200-400mm F4L IS lens with inbuilt 1.4 teleconverter. At the time of my post there were only a few prototypes of this lens in existence and they were all at the London Olympics (I was somewhere between Paris and Chamonix at the time) for testing by a lucky few sports photographers. Initial feedback on the grapevine from those fortunate few was that this lens (even in prototype form) was an oustanding performer and lived up to Canon’s claims of Unsurpassed combination of versatility, first-class optical performance and an enhanced weather-proof construction.\nFast forward to today and I recently finished (in February this year) three days shooting with the new Canon 200-400mm F4L IS lens (in prototype form). To my knowledge this is the first online pre-production review of this lens anywhere in the world. During the test I was fortunate to also have on hand the Nikon 200-400 equivalent and a D800E for comparison and this may also be the first time these lenses have been used side by side. In terms of size the two lenses are almost identical although the Canon is wider in girth and does feel lighter than the Nikon. Once a 1.4 teleconverter is added the Nikon does become a longer lens than the Canon.The Nikon design is now more than a decade old and does not include an inbuilt 1.4 teleconverter although it has had some optical and vibration reduction upgrades over the years. For those looking for a direct comparison of these lenses in terms of image quality I am sorry but you are going to have to look elsewhere. It is just too hard to account for differences in lenses when they are shot on different mega pixel cameras. What I can say is that after shooting side by side with the Canon and Nikon for three days is that both are excellent lenses and that the end result has as much to do with the camera and photographer as the lens itself. Shooting dressage with the 1DX and Canon 200-400 I was able to capture images that the D800E simply could not because its frame rate is literally half that of the 1DX. Twelve frames a second makes a difference when you are photographing a charging horse or wildlife on the move. In terms of autofocus it is again to hard to account for any differences between the lenses as so much depends on the camera and the photographer so we confined ourselves to simply comparing the physical attributes of the lenses. What was universally agreed however is that having an inbuilt 1.4 teleconverter is a significant advantage. The teleconverter can be activated in less than a second in the Canon where as it takes at least ten seconds to take the lens off the Nikon and install a converter. This difference is huge and is not to be underestimated when it comes to wildlife and sports photography. The Canon can continue shooting and tracking the subject whilst the converter is slide into place. The Nikon requires taking the camera away from the eye to fit the converter and then reframing the subject and reacquiring focus. This time delay can be the difference between getting the shot and missing the shot. Included below is a short video with my thoughts and impressions on this new and very impressive lens from Canon.I know the Canon lens looks quite a lot bigger than the Nikon in this photograph however that is a function of the lens and camera used to take this photograph. The Canon is also closer to the camera and thus appears larger in the frame.\nThe Canon 200-400mm F4L IS is only the second lens from Canon to ever employ an inbuilt 1.4 teleconverter that could be optionally switched on or off with the flick of a switch. The first lens to do so was the extremely rare Canon FD 1200mm f/5.6 L Lens (picture on PBase.com). I have personally never seen one of these lenses in the flesh although I have briefly shot with its replacement, the discontinued and ultra expensive EF 1200mm f/5.6 L USM Lens; which did not have an inbuilt teleconverter.\nThe teleconverter in the Canon 200-400mm F4 L IS lens offers a magnification factor of 1.4x the lens focal length. This turns the Canon 200-400mm lens into a 280mm – 560mm lens with the flick of a switch. The switch can be locked to prevent accidental operation. After three days of shooting with the lens I never felt the need to use the lock switch as the teleconverter switch does require a fairly dedicated press to move into position.\nI need to put a caveat on my comments about image quality as the lens I tested from Canon was a prototype and not a finished production model. Whilst I do not expect there to be any significant optical differences between the unit I tested and finished samples it is important to clarify that my comments relate strictly to the prototype and not finished production units (which are currently unavailable).\nGetting right down to brass tacks the image quality of Canon’s new 200-400mm F4L IS lens is superb. My own testing shows it to be fully the equal of Canon’s mighty 300mm F2.8L IS lens both in the centre and in the corners. This is phenomenal performance in a zoom lens and goes to show how much development and engineering work has gone into the design of this new optic. During the three days I was able to shoot with the lens I shot over a thousand frames at a local open range zoo not far from my house and at a dressage training event. I also spent a good deal of time shooting test charts so that I could make direct comparisons against the 300mm F2.8L IS. I tested the lens at varying focal lengths both with and without the 1.4 teleconverter in place and have found it to offer superb image quality regardless of focal length. It is necessary to go 300% magnification in Adobe Lightroom to see any difference between a file shot with the 300mm F2.8L IS and the 200-400 F4L IS. The most noticeable difference at 300% is the significant lack of chromatic aberration in the 200-400 lens. Any resolution differences are a quibble and it could be argued that the 200-400mm lens actually has better contrast. This confirms what I have heard from other photographers who tested this lens at both the London Olympics and the Australian Open tennis early this year and have claimed it is as good as Canon’s 400mm F2.8L IS lens.\nImage Quality with Teleconverter\nThe addition of an inbuilt teleconverter makes a good deal of optical sense since it can be specifically designed and tuned to the lens in which it is being employed. Traditional teleconverters are a compromise because they are designed to work with multiple lenses across a range of focal lengths. They are not tuned to a specific set of optics and employ more elements than they may otherwise need to in order to ensure operability between lenses. For this reason an inbuilt converter will always outperform and out-resolve a stand alone converter. In my own testing I found the in built converter in the 200-400 to offer improved image quality over the stand alone Mark III 1.4 Teleconverter.\nTo clear up the internet scuttlebutt I can clarify that it is possible to use a 2X teleconverter with the 200-400mm lens; which turns it into a 400-800mm F8 lens that will autofocus on the 1DX camera. Image quality with the 2X teleconverter in place is at least equal in quality to what you would expect to see using the converter on a prime telephoto lens. It is also possible to flick the 1.4 teleconverter into place and go to 1120mm although autofocus is lost and image quality takes a nose dive as you would expect with stacked converters.\nThe prototype 200-400mm lens I tested on the Canon 1DX camera has the best autofocus I have ever experienced with any camera – period. It is blisteringly fast and deadly accurate. This lens and camera combination never miss focused during the nearly 700 frames shot on high speed 12 frames per second AI servo at the dressage training event I was invited to photograph. The camera and lens were able to successfully track the rapidly moving dark horses irrespective of erratic and unpredictable movement. All of the files are sharp and well within what I would deem critical focus.\nThe new 200-400mm lens employs 4 stop image stabilisation that is virtually completely silent. Whilst I can hear the IS in my 300mm F2.8L IS when shooting with the lens in this mode I could not hear it at all on the 200-400mm lens. My tests show that the IS in the 200-400 is significantly better than that in the original 300mm F2.8L IS lens and I would have no hesitation in hand holding this lens in poor light and shooting at shutter speeds that would normally require a tripod for these focal lengths. The lens has three different modes for either hand held shooting, panning or utilisation on a tripod.Who is it for?\nFor Photographers who need a super-telephoto zoom in the 200mm – 560mm range with superb optics this lens is likely to be worth every cent. After spending time shooting from the deck of ships I have come to the realisation that there is no substitute for a high quality super telephoto zoom lens. For shooting wildlife such as penguins, seals, polar bears, walrus and birds from the deck of a ship where the required focal length is always different I expect this lens will likely prove the ultimate no compromise choice for ‘getting the shot’. It is the lens I have decided to take with me on the expeditions I am running to the Arctic and Antarctic in August and November this year.\nWith a focal length of 200mm – 400mm or 280mm – 560mm with the 1.4 TC in place this lens will also be very popular with sports photographers simply because of the extreme versatility it will provide. It is not quite as fast as a 300mm or 400mm F2.8 but I expect this small sacrifice in speed will be a small price to pay for the added flexibility this lens will bring to many sports shooters. I expect this lens to be in hot demand with sports and wildlife photographers when it is released in June this year; even with its high price tag. Despite the long lead time from initial announcement of its development to working field prototypes this lens remains likely the most hotly anticipated lens for sports and wildlife photographers in recent memory.\n2 thoughts on “Canon 200-400mm F4L IS Pre-Production Sample Lens Review”\nIt’s great to read the contents about the Canon 200-400mm IS F4L lens, for the further expedition tour I think I will take seriously this lens into account, thank you for the detailed information.","domain":"optical_engineering"}
{"url":"http://sportsdealbox.com/Streamlight-51045-Twin-Task-3C-Battery-Powered-Uv-Led-Flashlight-ABSB004MDK7PY","date":"2017-02-26T03:19:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501171933.81/warc/CC-MAIN-20170219104611-00044-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.8801310062408447,"token_count":695,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__206972598","lang":"en","text":"Streamlight Twin-Task 3C Battery Powered UV LED Flashlight\nThe Twin-Task 3C UV flashlight features three lighting modes and the latest in LED technology. The six 390 nanometer (nm) UV LEDs provide ultraviolet light for detection of fraudulent documents, forensic investigations, or detecting engine and HVAC leaks. The white C4 power LED with its textured reflector provides an even beam, along with piercing hotspot for distance. The push button head switch sequences through three 390 nm LEDs, six 390 nm LEDs, C4 power LED, and Off. Market applications include, but are not limited to, industrial, law enforcement, security, and automotive use.\nDependable and Economical\nLEDs don't require periodic bulb replacement like incandescents and are virtually indestructible. Streamlight's revolutionary C4 technology combined with an innovative Streamlight-engineered reflector provides sharp, focused light that rivals incandescent intensity without giving up the durability and longevity of an LED. Since LEDs have a long life and won't burn out or won't break, they never need to be replaced. More powerful and more economical, Streamlight LED lighting tools pack a lot more power with ultra-bright white beams and long illumination times. They are extremely dependable and cost-efficient.\nBright and Powerful\nThe Twin-Task 3C UV flashlight features C4 LED technology for extreme brightness, impervious to shock with a 50,000-hour lifetime. Its six 390 nanometer UV LEDs have a 100,000 hour lifetime. The Twin-Task features three light modes: white C4 LED with 3739 candela peak beam intensity, 185 lumens and a beam distance of 116-meters; six UV LED with 44mW measured system output; and three UV LED with 30mW measured system output.\nBattery and Run Times\nPowered by three C size alkaline batteries (sold separately), the Twin-Task 3C UV flashlight's C4 LED has a run time of 27 hours, the six UV LED has a run time of 63 hours, and the three UV LED has a run time of 81 hours.\nBuilt to Last\nDesigned for durability, the Twin-Task 3C UV flashlight features a machined aluminum case with a non-slip knurled grip, a matte black anodized finish and an unbreakable polycarbonate lens. It is IPX4 rated for water-resistant operation and 1-meter impact resistance tested. All openings are O-ring sealed.\nDimensions and Weight\nWeighing 16 ounces with batteries, the Twin-Task 3C UV flashlight has a length of 9.02 inches, a major diameter of 1.68 inches, and a body diameter of 1.26 inches.\n- Batteries sold separately\n- Meets applicable European Community Directives\n- Packaged with a high-strength wrist lanyard\nFeatures : Features six UV LEDs *C4 LED technology for extreme brightness *IPX4 rated for water resistant operation *1 meter impact resistance tested *Packaged with a high-strength lanyard\nColor : Black\nProduct dimensions : 1.26x9.02x1.68 inches\nProduct weight : 0.65 pounds\nWrite a reviewYour Name:\nYour Review: Note: HTML is not translated!\nRating: Bad Good\nEnter the code in the box below:","domain":"optical_engineering"}
{"url":"https://nci.org.au/research/research-highlights/creating-a-super-thin-light-absorber","date":"2023-02-06T18:53:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500357.3/warc/CC-MAIN-20230206181343-20230206211343-00862.warc.gz","language_score":0.9016298055648804,"token_count":554,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__152851431","lang":"en","text":"If you look at the sun through a sheet of paper, you can see the light shining through. Now imagine you take that sheet of paper and shave it into 720 separate layers, each 90 nanometres thick. Holding one of those up to the sun will do so little to block the light you may as well not be holding anything at all.\nYet a 90-nanometre thick material that blocks 80% of incoming light from all angles and all wavelengths is exactly what Dr Bjorn Sturmberg and colleagues from The Australian National University, Swinburne University and the University of Sydney have produced. The remarkable thinness of this material hides the complexity going on inside it. Zoom in and you'll see dozens of layers of graphene oxide – single-atom thick sheets of carbon and oxygen – separated by layers of an electrical insulator known as a dielectric.\nCarved into the graphene-dielectric layers are deep grooves that capture and channel incoming light further into the material. The particular, laser-carved arrangement of the layers and grooves is what makes the material such a good absorber of incoming light. Figuring out the ideal spacing, width, depth and shape for the grooves is a job for a supercomputer.\nUnpolarised light hits the material from a wide range of angles. The material couples the light sideways into waveguide modes that propagate along the surface, leading to large absorption in the metamaterial. The image inset shows the structure of the metamaterial.\nOther materials exist that absorb very specific wavelengths of light to a high degree, but nothing this thin that absorbs this much solar light from infrared to ultraviolet. Finding the best arrangement of grooves and layers required Dr Sturmberg to simulate incoming light coming in from 25 different angles and at dozens of different wavelengths.\nHe says, \"There's no way for us to do these kinds of calculations without a supercomputer. The grooves and the layers really do need to be arranged properly if the material is going to absorb the way it should.\n\"Ultra-thin materials like this open up new possibilities for creating light sensitive devices and technologies. The combination of theoretical and experimental expertise, and the computing infrastructure that plays a key role, are all required for making advances like this.\"\nNew materials open up plentiful possibilities in all aspects of future technologies, manufacturing, industry and society. Materials like this ultra-thin sheet of light-absorbing layers might one day appear in our everyday objects and tools. Designing molecular structures at the atomic level lets us customise exactly the behaviour we need, and computational simulations let us push forward the boundaries of what is possible.\nYou can read the full research paper in the journal Nature Photonics.","domain":"optical_engineering"}
{"url":"https://vantikadixit.wordpress.com/2017/05/07/iit-roorkee-scientists-create-solar-cells-from-fruits/","date":"2022-05-28T13:11:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663016853.88/warc/CC-MAIN-20220528123744-20220528153744-00167.warc.gz","language_score":0.9354722499847412,"token_count":189,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__47568518","lang":"en","text":"Scientists at the Indian Institute of Technology (IIT)-Roorkee have fabricated low-cost thin film solar cells by extracting the plant pigments from plums, black currants, and berries.\nThe team found that the plant pigments are good at absorbing sunlight. According to a study, published in the Journal of Photovoltaics, plant pigments are naturally occurring biodegradable and nontoxic molecules that are extracted using techniques that involve negligible cost to the environment and therefore can provide eco-friendly alternatives to synthetic dyes that are used for thin film solar cells production.\nThe researchers at IIT-Roorkee extracted the plant pigments using ethanol to create the thin film solar cells. And while the organic thin film solar cells are not yet as efficient as conventional silicon-based solar cells, the team is investigating ways to make them more efficient and cost-effective. Read the full report by Lorraine Chow.","domain":"optical_engineering"}
{"url":"https://www.webprecis.com/6-advantages-of-having-magnetic-clip-on-glasses/","date":"2023-12-05T07:42:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00444.warc.gz","language_score":0.9348385334014893,"token_count":1034,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__117595073","lang":"en","text":"Magnetic Clip-On glasses are a boon for people with similar issues. These magnetic clip-ons are cosmetic for your glasses and can be customized to your mood. Today, we are going to tell you the five advantages of having magnetic clip-on glasses.\nWhy Choose Magnetic Clip-On Glasses?\nAs mentioned, many people want to wear different glasses that compliment different occasions, but hoarding a large number of glasses is not the ideal solution. Magnetic clip-on glasses are detachable frames that connect to your glasses through magnets.\nThese robust magnets firmly hold the frame in its place and can be easily swapped out for a different frame. This feature can work well with sunglasses as well as prescription-based eyewear.\n1. Lens Leisure\nThe adaptability of magnetic clip-on glasses is one of its main features. Many people need prescription eyeglasses to correct vision problems but still desire the benefits of sunglasses.\nMagnetic clip-on frames solve this problem. These frames can securely retain prescription lenses while also allowing you to put an appealing shade on top when needed effortlessly.\nThis dual capability enables users to adjust to changing lighting situations and activities without changing glasses.\nFurthermore, the clip-on lenses are frequently made of polarized polycarbonate glass, which provides UV protection. These lenses are available in polarization levels ranging from UV 100 to UV 400, providing complete eye protection.\nNormal glasses go through occasional wear and tear and sometimes come apart in case of an accident. These shortcomings can prove harmful and cause serious damage.\nBecause they are composed of military-grade plastic like Trivex, that are used to develop shatterproof windshields. These frames and lenses are durable even under harsh conditions and can withstand extreme temperature with ease.\n3. Fashion Quotient\nMagnetic clip-on glasses are the latest fashion trend among the fashion-conscious. Their existence can be linked back to the 90s. With the recent revival of 90s fashion, clip-on glasses have made their comeback in the mainstream media.\nMany celebrities and public figures have been spotted wearing nostalgic clip-on glasses. The effortless ability of these spectacles to smoothly blend in any outfit while maintaining their unique voice has skyrocketed their sales.\nTo meet this need, various firms provide a variety of materials for the construction of these frameworks.\nFrom rich gold and silver embellishments to the futuristic appeal of aluminum and even denim injected with epoxy, these materials lend a touch of personality to your eyewear.\nMore importantly, these design and material innovations do not jeopardize the frames’ longevity, making them a functional but trendy alternative for anyone looking to express their individual style.\nBecause of their growing demand, magnetic clip-on glasses are readily available in the market. Many big firms retail clip-on glasses in their outlets and you can even browse their web portal for online shopping.\nThe worldwide eyewear market revenue has been projected to reach $141.5 billion by the end of 2023. This boom in sales has projected the global eyewear market to grow by 8.5% from 2023-2030.\n5. Certified Safe\nInitially, concerns arose regarding the safety of wearing magnetic clip-on glasses, particularly in relation to vision. However, extensive scientific research has provided conclusive data, establishing the safety of magnetic clip-on glasses.\nIn a recent study by Korean Physical Society members Dong Hyuk Kim and Hyun Mee Lee, contrast sensitivity between regular sunglasses and clip-on sunglasses was analyzed. The study found that the contrast sensitivity of the clip-on sunglasses was lower than that of the ordinary sunglasses with only one lens.\nThe contrast sensitivity at high illumination was higher as compared to low illumination. The contrast sensitivity of the clip-on glasses was better for a narrower lens spacing. Additionally, no difference in contrast sensitivity between the four colors coated on the mirror lens was observed.\nThe results have proved clip-on glasses to be just as safe for vision as traditional eyeglasses. Wearers can enjoy peace of mind, knowing that their eye health and vision are not compromised by opting for magnetic clip-on glasses.\n6. Savings Savvy\nMagnetic clip-on glasses are not only a style statement but also a financially groovy option. By opting for a magnetic clip-on glass, you refrain from purchasing multiple sets of glasses to change your style.\nThese glasses double down to act as your typical eyeglasses and can be transformed into funky sunglasses effortlessly.\nHaving this dual functionality assures that you get better value for your money and cuts down on your eyewear expenditure.\nFurthermore, magnetic clip-on glasses allow you to constantly upgrade your style statements and keep up with the changing fashion trends without additional expense. This functionality makes magnetic clip-on glasses a cost-effective and desirable option.\nCall it a style statement, an ode to the past, or a reasonable financial choice, magnetic clip-on glasses have succeeded in creating their niche audience.\nThe flexibility and durability of these glasses set them apart from their counterparts.","domain":"optical_engineering"}
{"url":"http://www.todaystrendyblog.com/2012/10/review-canon-powershot-s110.html","date":"2017-04-24T21:08:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119838.12/warc/CC-MAIN-20170423031159-00222-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9022899866104126,"token_count":1685,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__184655013","lang":"en","text":"Newly engineered specifically for the PowerShot S110, the camera's 24mm Wide-Angle 5x Optical Zoom lens with a focal length of 5.2–26.0mm (35mm film equivalent: 24–120mm) achieves f/2.0–f/5.9, giving the user exceptional versatility. The Wide-Angle lens gives your images a distinctive sweep and grandeur, capturing landscapes, cityscapes, tall buildings and wide groups of people with ease. The large f/2.0 aperture allows you to achieve shallow depth-of-field for creating portraits with beautiful, soft background blur, and incomparable Canon optical technology delivers a high performance lens enabling incredible images, even in low light.\nThe PowerShot S110 is equipped with built-in Wi-Fi for on-the-go convenience. The camera makes it easy to connect directly to both iOS and Android devices, and upload images via the free Canon CameraWindow app. Using CANON iMAGE GATEWAY, you can easily post your images to your favorite social networking sites to update friends and family while you're traveling or just out and about. Even without a mobile device, you can send images to a PC, share images between Wi-Fi enabled PowerShot cameras and you can even print in a snap by sending your images wirelessly to a Wi-Fi compatible printer.\nThe PowerShot S110 employs a Canon 12.1 Megapixel CMOS sensor. Utilizing a sophisticated light-capturing design, it provides high sensitivity for improved high ISO capture with reduced noise. It is also a high-speed design, capable of rapidly capturing and moving image data to the processor, enabling faster continuous shooting and faster autofocus.\nThe 12.1 Megapixel High-Sensitivity CMOS sensor works in concert with Canon's own latest-generation DIGIC 5 Image Processor to create the renowned Canon HS SYSTEM. With the Canon HS SYSTEM, you'll experience excellent tracking performance even in low light, and achieve gorgeous still image quality even at high ISO speeds all the way up to ISO 12800. The Canon HS SYSTEM lets you use higher shutter speeds to capture clearer images with reduced noise and blur, even when shooting video.\nThe latest-generation Canon DIGIC 5 Image Processor works with the PowerShot S110's image sensor to bring phenomenal increases in processing speed and power. Improved noise reduction produces clearer images when shooting in low light at high ISO speeds. With the power of the DIGIC 5 Image Processor, the PowerShot S110 can achieve higher ISO sensitivity and even perform advanced functions like lens correction, special scene modes and much more.\nSimply touch the dedicated movie button, now conveniently embedded in the PowerShot S110's thumb pad, to start recording video in 1080p Full HD. Canon's Fine Detail Movie Processing achieves beautiful videos with high resolution processing that records approximately 4x the amount of information during video shooting. You're free to use the full range of the zoom in movie mode, and sound is recorded in stereo. An HDMI output allows you to view and share your video on an HDTV immediately, simply by connecting the camera to the TV with an optional HDMI cable.\nThe PowerShot S110 is equipped with Canon's latest advancement in AF technology: High Speed AF. High Speed AF delivers significantly faster focus speed of 0.2 seconds and a dramatically reduced shooting lag time of 0.25 seconds. The technology also powers the camera's new High-Speed Burst HQ, with continuous capture at a maximum speed of approximately 10 fps.\nThe big 3.0-inch PureColor System LCD responds to familiar one- and two-finger touch operations. Users can spread and pinch to change the magnification in playback, drag two fingers to switch display, use the easy interactive Touch Shutter, and quickly select camera settings. You can even adjust the panel’s touch sensitivity to your liking. The camera’s sophisticated control ring, located at the base of the lens barrel, can be used in conjunction with the Touch Panel to conveniently access a range of additional actions.\nIt's easy to capture clear, steady images with the PowerShot S110, even in low light without using a tripod. That's because the camera is equipped with Canon's innovative Intelligent IS. The system analyzes camera movement and applies the best shake correction method for the shooting situation. For stills, the system automatically selects among Normal, Panning, Macro (Hybrid) and Tripod IS modes. When shooting video, the system automatically selects among Dynamic, Powered, Macro and Tripod IS modes.\nFocus, aperture, shutter speed, ISO, step zoom, exposure compensation, aspect ratio, i-Contrast, or white balance can be adjusted more quickly and conveniently with the PowerShot S110's control ring. Located at the base of the lens barrel, the ring is more intuitive than other types of controls. The functions that can be assigned to the control ring vary with shooting mode, and you can set your preferences quickly using the dedicated ring function selector button.\nAs with many EOS DSLR cameras, the PowerShot S110 uses a 12-bit converter to process the output of the CMOS sensor. The PowerShot S110 lets you shoot in RAW mode, which records all the information captured by the sensor, giving you outstanding flexibility and complete creative control when editing your images with Canon’s powerful bundled software, and the camera allows you to record in RAW and JPEG formats simultaneously. Now in RAW mode, you can even select among several aspect ratios, including 16:9, 3:2, 4:3, 1:1, and 4:5.\nThere are now a total of 30 display languages from which you can choose: English, German, French, Dutch, Danish, Finnish, Italian, Norwegian, Swedish, Spanish, Simplified/Traditional Chinese, Japanese, Russian, Portuguese, Korean, Greek, Polish, Czech, Hungarian, Turkish, Thai, Arabic, Romanian, Ukrainian, Farsi, Hindi, Malay, Indonesian and Vietnamese.\nIt's quick and easy to make beautiful prints from your PowerShot camera with Canon's Direct Print system. Directly connect your PowerShot camera to a Canon PIXMA or SELPHY photo printer with a USB cable and simply press the button to print.\nThe S110 looks identical to The S100, but let me tell you, Canon has made some huge improvements with The S110. Canon has improved upon the sensor and auto focus speed of this model, added usable ISO, WiFi and touchscreen functionality. Low light performance is a lot like that of The S95 and S100 combined. Allow me to explain. Sometimes The S100's colors would be a little off in low light, casting an orangish hue - as if shot in sepia. The Powershot S95 rendered sharp, detailed and very accurate colors in low light, but the lens was a bit slow under these conditions. I don't know what Canon did, but there is almost zero lag in AF, despite others claim that this is a slower lens or sensor than its predecessors. Color, contrast and sharpness are spot on! I predict that the next S model will have a larger sensor to be competitive with The Sony RX100's lowlight performance, but until then, I have to say that the S110 is very close in low light image quallity and will surpass the Sony, although at the cost of a higher price point and perhaps a larger form factor because of the larger sensor.\n- Front grip is gone\n- As on all The S Models, power button is way too small and recessed\n- Mode wheel blocks index finger from shutter button\n- Flash makes camera hard to handle with left hand\n- If touchscreen shutter is on, camera will take picture if finger contacts screen before you are ready.\n- Built-in WiFi for Image Transfer to Social Sites, PC, IOS and Android Devices\n- 5x Optical Zoom with 28mm Wide-Angle Lens\n- 1080p Full HD Video With a Dedicated Movie Button\n- High-speed AF, High-speed Burst HQ for a maximum of 10 frames\n- 12-bit Multi Aspect Recording in RAW + JPEG\nReviewed by Garg Ankit Rating:","domain":"optical_engineering"}
{"url":"https://www.mhohner.de/newsitem2/carl-zeiss-24f2-pma-2010","date":"2022-08-18T07:50:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573172.64/warc/CC-MAIN-20220818063910-20220818093910-00644.warc.gz","language_score":0.9565693140029907,"token_count":252,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__56017910","lang":"en","text":"Sony releases Carl Zeiss 24/2 ZA SSM at PMA 2010\nFebruary 22nd, 2010 - 01:36:14 PM:\nSony has officially announced another lens at PMA 2010, the Carl Zeiss Distagon T* 24/2 ZA SSM.\nThis lens was previewed already at PMA 2007, called a “Large Aperture Wide Angle” lens. The prototype displayed then was significantly larger in diameter. It was probably intended to represent a 24/1.4. Sony has obviously changed their mind in the meantime, going for a 24/2. Such a more conservative design offers the opportunity for smaller size, lower weight and lower price, while still resulting in a reasonably fast lens and high performance.\n|left: protoype from PMA 2007; right: Carl Zeiss Distagon T* 24/2 ZA SSM|\nAlpha system users will be happy to learn that this lens is a Carl Zeiss design, full frame, and equipped with a SSM focus motor. Further lens data has not been communicated.\nSony has not revealed a release date, yet, but the protoype shown at PMA looks like it is ready to hit the market soon.","domain":"optical_engineering"}
{"url":"http://micoptic.com/","date":"2018-05-22T15:25:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864798.12/warc/CC-MAIN-20180522151159-20180522171159-00325.warc.gz","language_score":0.9227787852287292,"token_count":1086,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__97893347","lang":"en","text":"Our company produces unique, individually-made micro optical lenses. We produce the front-side lens and the so-called sharp lens completely manually; however, our speciality is spherical radius optics. Our special equipment fleet is handled by our team of professional experts: former employees of the experimental facility of the legendary MOM, as well as their students. Owing to their thoroughness and precision, the lenses manufactured by us are used in medical instruments, experiments, telecommunications and in industrial laser technology all over the world.\nPRODUCTION OF MICRO OPTICAL LENSES\nImage quality in case of various optical imaging systems (cameras,telescopes, microscopes, etc.) depends on the finish of the optical lenses used. An optical lens is a refracting medium, usually bordered with spherical surfaces and generally made of glass, which refracts incoming light rays in the required direction, depending on the type, shape and configuration of the lens. Lens quality is determined by its base material, its processing and the quality of surface treatment.\nSPHERICAL RADIUS OPTICS\nOur company manufactures unique and individually-made micro optical lenses by hand, with our focus being on the field of spherical radius optics. We mainly produce the optical elements of endoscopic equipment designed for medical, therapeutic and technical use.\nSingle- and double-sided lenses, front lenses, menisci, achromates, masked optical elements, unique lenses and lenses of compound optical systems, the radii of which extend from 0,500 mm to flat surface, with their diameter ranging from 0,600 mm to 12,000 mm.\nDue to the sizes of the lenses we make, series production is not possible. The starting point of manual production is that lens radius should be larger than half its diameter, but less than the entire diameter.\nWe process the lens on the lapping machines by hand, using diamond tools of various fineness. Workpieces are secured using either black tar adhesive or a manual gripping tool according to the technological specification. Afterwards, we define the approximate centre thickness of the lens using a lapping/stocking tool, as well as form its proper radius of necessary (based on lens type and the Customer's requirement). Then, we use ever-finer tools to create the proper lens surface with the ideal centre thickness before polishing is carried out. The number of polishing steps applied and the grain size of the polishing material are determined by the characteristics of the glass used. Due to the 1/1000 mm precision measurements done during manual lapping and the entire work process, we are able to polish highly accurate lens surfaces. The lens surface is not yet transparent after polishing; similarly to mottled glass, it is translucent. Therefore, the workpiece is further processed on the polishing machines.\nThe polishing machine polishes the lens surface using the appropriate polishing material in 3 steps until the lens is smooth. During the process, we supervise the lens parameters based on the criteria supplied (rings, colour, surface, etc.)\nThe lenses are continuously checked visually under a microscope, which aids primarily in spotting surface defects. The processed lens is then placed on an equivalent etalon lens that has a negative relative curve; thereby, we can determine the deviance of the lens surface from the correct or etalon surface to a high accuracy (ca. 1/50000 mm) based on the shape and form of the interference rings visible on the boundary surface.\nThe finished lenses are cleaned, and following quality checks (which also include the interferometric inspection), they are packaged and dispatched to our clients.\nDIMENSIONS AND TYPES\nThe finished lenses are cleaned, and following quality checks\n(which also include the interferometric inspection), they are packaged and dispatched to our clients.\nD - 0,600mm / R - 0,500mm\nD - 12,000mm / R - 9,000mm\nContract and order\nPLACING YOUR ORDER\nIn order to prepare our offer, it is essential that we receive both the blueprint of the micro optical lenses complete with dimensions and the filled-in technical data sheet required for the production process. When filling in the data sheet, it is important that parameters be supplied to 1/1000 mm accuracy because our experts carry out their tasks to 2/1000 mm accuracy.\nApply Technical Data Sheet\nOnce our offer is accepted, we draw up the supply contract that contains the agreed production price, any incidental advance payment, the agreed deadlines and the method of transport. This ensures that our partner does not bump into any hidden costs. Please send your order with an official signature in scanned format to one of our colleagues' e-mail address. Once manufactured by the deadline, the micro-optical lenses are packaged inside purpose-built storage racks that prevent surface and other defects from occurring.\nThe carefully prepared package is delivered by one of the internationally-acclaimed package delivery companies (TNT, UPS, DHL, FedEx, etc.) to the customer's address.\nWe can provide our long-standing partners with significant discounts, depending on the amount ordered monthly and the duration of the contract. Therefore, our partner (whether an end user or a dealer of the micro optical lenses produced by us) has the possibility to significantly reduce the acquisition price.","domain":"optical_engineering"}
{"url":"https://www.discountcodesuk.com/coupons/celestron-lens-cleaning-kit-just-12-when-bought-with-select-binoculars/","date":"2023-01-31T10:52:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499857.57/warc/CC-MAIN-20230131091122-20230131121122-00285.warc.gz","language_score":0.8801062107086182,"token_count":159,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__101337844","lang":"en","text":"Celestron Lens Cleaning Kit Just £12 When bought with select Binoculars\nGet the Celestron Lens Cleaning Kit for Just £12 (usually £16.99) when bought with select binoculars at Clifton Cameras. Keep your optics and lenses clear of dust and debris with this lens cleaning kit. This compact cleaning kit can be easily transported thanks to a convenient belt loop, and have it ready to hand for streak-free results.. How to claim?\nSimply add the applicable binoculars to your basket along with the Celestron lens cleaning kit and we will apply the discount automatically at the checkout. All featured products can be viewed in the grid below.\nOffer valid from 14th Dec 2022 until 31st Mar 2023.","domain":"optical_engineering"}
{"url":"http://lesbosher.co.uk/lensconversion.htm","date":"2023-12-06T01:00:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100575.30/warc/CC-MAIN-20231206000253-20231206030253-00892.warc.gz","language_score":0.7688379287719727,"token_count":284,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__17582169","lang":"en","text":"We are able to convert Canon FD Lenses\n300mm f2.8 , 400mm f2.8 ,\n500mm f4.5 , 600mm f4.5 , & 800mm f5.6 to Universal Mount Also Many\nother Canon FD Lenses Both Prime & Zoom can be converted to a Specific\nWe can Convert\nthe Canon 200mm f1.8 Autofocus Lens into a Manual Focus Lens with a Special\nWe can convert\nmost Tamron Adaptall Lenses into Mount Specific Lenses.These lenses are\nof very high Quality & are a Good alternative to Canon FD Lenses.\nMany other Makes\n& types of Lenses are suitable for conversion. Please feel free to\ncontact us with your enquiries.\nWe specialise in the\nmanufacture of Lens Mounts & Lens Conversions, & are able to offer\na very good price.\nWe also Manufacture\na range of 2 x Converters .They can be supplied in many configurations\nincluding :- Universal , Arri Bayonet - Arri Bayonet , Arri PL - Arri\nPL , Sony - Sony\nPL - Arri PL 2 x Converter\nWe can convert the\nPeleng 8mm Fisheye Lens to Arri Bayonet or Standard , & Arri PL -which\nincludes new Focus & Iris Rings .\nBOSHER CAMERA ENGINEER","domain":"optical_engineering"}
{"url":"http://www.nwvisiontherapy.com/orthokeratology/","date":"2013-06-19T11:06:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708711794/warc/CC-MAIN-20130516125151-00054-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9301884770393372,"token_count":310,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__155213969","lang":"en","text":"What is Orthokeratology?\nOrthokeratology, sometimes known as “Ortho-K”, “Corneal Reshaping”, “Dreamlens” or “CRT” is a contact lens technology that allows you to get rid of glasses and daytime contacts without eye surgery. Ortho-K lenses are rigid, gas-permeable contact lenses worn while sleeping so you can have perfect vision all day without correction.\nThe Orthokeratology lenses work by gently changing steepness of the cornea (the front surface of the eye). This changes the way light focuses in the back of the eye so that you enjoy clear vision all day long.\nIs The Treatment Permanent?\nNo. Orthokeratology is completely temporary. If you stop wearing the lenses for a few weeks, your cornea will return to the original pretreatment shape.\nHow Often Do I Need To Wear The Lenses?\nMost patients will wear the lenses every night but many others can wear them less frequently; sometimes as little as every other night. This will often depend on your current prescription.\nAm I a Good Candidate?\nIf you are nearsighted and tired of contacts or glasses, you will probably like OrthoK. The technology is usually effective for up to -6.00D of nearsightedness and -1.50D of astigmatism. Orthokeratology in farsighted patients is less effective but possible in some cases.","domain":"optical_engineering"}
{"url":"https://highmed.am/products/oncology/colposcope/leisegang-colposcope","date":"2023-11-29T01:14:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100047.66/warc/CC-MAIN-20231129010302-20231129040302-00136.warc.gz","language_score":0.8961431980133057,"token_count":901,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__182597252","lang":"en","text":"With over 65 years of experience in the development and production of colposcopes, the name LEISEGANG stands for traditional German engineering excellence.\nLeisegang is a long established German company founded 120 years ago. Since 1948, Leisegang has specialized in the manufacture of colposcopes, and over the years has become one of the world's industry leaders.\nThrough advanced lenses, white LEDs and a large portion of manual labor, Leisegang's colposcopes have premium quality which is essential for accurate diagnosis in gynecology. That's why Leisegang's colposcopes are considered the \"Gold Standard\" in colposcopy and sold to more than 70 countries worldwide.\nWe have a broad range of colposcopes to choose, from a simple standard colposcope with different levels of magnification to advanced photo/video colposcopes with integrated or external camera. Optimized accessories, such as a software for documentation or a micromanipulator extend the possible fields of application.\nAll Leisegang colposcopes meet the medical and technical requirements, guidelines and regulations. Our products are available worldwide; in the US, they are available from Cooper Surgical. In 2010, Cooper Surgical's LEEP and cryosurgery products and gynecology instruments were bundled into our new ColpoSuite which permits Leisegang to provide a comprehensive solution for your dysplasia consultation.\nSix good reasons for choosing LEISEGANG:\nUnlike the parallel optics often found elsewhere on the market, Leisegang offers convergent optics for fatigue-free work.\nThe advantage of convergent optics is that light beams come together at a working distance of 300 mm, meaning that the eyes do not have to focus at this distance themselves.\nDecades of experience and a sophisticated design contribute to user-friendly handling and slim design.\nErgonomic adjustment drives for height, focus and angle tilting allow exact positioning to millimetric accuracy. Detachable rings for ocular covers enable use of the colposcope with glasses.\nAll Leisegang colposcopes are equipped with continuously adjustable white-light LED lighting. A higher light intensity allows a clearly superior contrast, leading to a more precise diagnosis.\nLeisegang provides an extremely bright LED spotlight with a lighting strength of 45,000–52,000 Lux at a working distance of 300 mm.\nWhether mobile or fixed to an examination chair, Leisegang stands are characterized by an ease of use and a low space requirement.\nA slim, sophisticated design provides reliable stability, allowing maximum possible movement for precise positioning.\nAmong other associated equipment, Leisegang offers photo and video adaptors. By using these adaptors, standard colposcopes can also be retrofitted as photo/video colposcopes, so even with a standard colposcope it is possible to document diagnoses.\nA Leisegang colposcope is a great investment from a durability point of view, with even lamp replacement being unnecessary. It’s an investment that will pay off.\nAll Leisegang colposcopes have the following features:\n- Convergent optical beam path for fatigue-free work\n- Vivid, 3D image\n- 300 mm working distance\n- LED lighting:\n- With a color temperature of 5,700-6,000 Kelvin for excellent contrast\n- With a lighting strength of 45,000-52,000 Lux (at a working distance of 300 mm)\n- Only 10 W power consumption\n- The lamps have a long lifetime and therefore do not need to be replaced\n- Continuously variable adjustment\n- Green filter for observation of blood vessels\n- Compensation for myopia and hyperopia through adjustable oculars\n- Standard color Grey white (RAL 9002). Also available in all colors within the RAL color system\nMediaWorkStation organises image and video footage easily and efficiently. The software was optimized for colposcopy in collaboration with leading international gynecologists. The result is a highly intuitive user interface that ensures an easy workflow.\nAn integrated images atlas supports appraisal as reference. A DICOM Push interface can be purchased optionally. 3 months support inclusive.\nMediaWorkStation software is a class 1 medical device.\nThe following language versions are available:\nGerman, English, French, Italian, Spanish, Russian, Turkish, Chinese","domain":"optical_engineering"}
{"url":"http://ksco.com/news/51446-local-lighthouse-gets-original-lens-11-21-17b-17-55-s-s","date":"2018-11-14T05:58:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741628.8/warc/CC-MAIN-20181114041344-20181114063344-00503.warc.gz","language_score":0.9275307059288025,"token_count":138,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__26057922","lang":"en","text":"Local Lighthouse Gets Original Lens 11/21/17B 17:55 S.S.\nThe Point Sur Lighthouse will be getting its original 1887 First-Order Fresnel lens back. The more than 4300 pound lens has been on exhibit at the now-closed Monterey Maritime Museum since 1992. . It will be taken apart, cleaned and restored, and then re-assembled in the Lighthouse. Each of the 16 panels of prisms in the lens has a bulls-eye in the center, surrounded by concentric rings of prismatic glass. The light from Point Sur’s Fresnel lens used to be able to be seen for 23 nautical miles.","domain":"optical_engineering"}
{"url":"https://www.emqm15.org/presentations/speaker-presentations/konstantin-y-bliokh/","date":"2024-03-01T02:09:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474893.90/warc/CC-MAIN-20240229234355-20240301024355-00042.warc.gz","language_score":0.8814464807510376,"token_count":323,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__176829572","lang":"en","text":"Konstantin Y. Bliokh\nCEMS, RIKEN, JP\nField-Theory Revolution for Optics: Revisiting Momentum and Angular Momentum of Light\nI will overview recent theoretical and experimental studies, which revisit fundamental dynamical properties of light: momentum, angular momentum, and helicity. I will show that the commonly accepted approach based on the use of the Poynting vector and the corresponding angular momentum does not work well for optical fields and laboratory experiments. An alternative approach requires revisiting the electromagnetic field theory and its connection with optics and quantum mechanics. It turns out that the canonical (rather than kinetic) field-theory picture of gauge-dependent momentum and spin densities of the massless electromagnetic field is perfectly consistent with the laboratory optical experience, provided that the Coulomb gauge is chosen.\nThe above analysis is not of purely theoretical interest. This new ‘canonical’ approach to the momentum, spin, and helicity of light has allowed us to predict qualitatively new types of the spin and momentum in structured optical fields. These are:\n1. The transverse spin angular momentum, which is orthogonal to the wave vector and is independent of the helicity;\n2. The anomalous transverse momentum, which depends on the helicity of light and exerts a weak anomalous optical pressure orthogonal to the wave vector.\nBoth these quantities have attracted considerable attention and have been described and measured experimentally in several optical systems. I will overview these new findings and experiments.\nDownload presentation pdf (23MB)","domain":"optical_engineering"}
{"url":"https://8mgdesign.com/teledyne-presents-its-new-co/","date":"2022-05-22T10:55:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662545326.51/warc/CC-MAIN-20220522094818-20220522124818-00759.warc.gz","language_score":0.8711512684822083,"token_count":548,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__33785298","lang":"en","text":"WATERLOO, Ontario, August 03, 2021 (GLOBE NEWSWIRE) – Teledyne is pleased to present the MicroCalibirâ¢, a new low-power, compact camera platform. This latest uncooled thermal camera platform features the smallest VGA IR core module on the market, making it ideal for OEM drones, handhelds, helmet-mounted integration products, and in vehicles.\nThe development of the small and lightweight MicroCalibir is the result of the latest advancements made by Teledyne DALSA’s integration of their internal 12m microbolometric pixel technology with a deep ADC ROIC circuitry. This new ROIC design results in an intra-stage temperature range of 1000 ° C at a NETD of less than 50 mK.\nIts pocket size 21 x 21 mm offers the latest Size Weight and Power (SWaP) optimization for this type of LWIR imager, with a very high dynamic range.\nAdditionally, cameras can achieve very low NETD levels, below 30mK, using advanced user-selectable noise filtering algorithms.\nThe MicroCalibir platform offers precise, high-end thermal capabilities and can be configured by resolution, field of view and frame rate, to deliver optimal performance in applications such as drones, security and surveillance, outdoor recreation / personal vision systems, firefighting and many more. Following.\nMicroCalibir cameras and cores are available in QVGA and VGA resolutions and a variety of lens options. Its modular design allows for different interface options, for today and for the future. Currently available interfaces are LVCMOS and USB2, a CSI2 version will follow later in 2021.\nFor more information, please contact Arnaud Crastes, [email protected]\nLearn more about MicroCalibir at AUVSI Xponential, August 16-19, 2021 in Atlanta, Georgia, Teledyne booth 2547.\nTeledyne is a leading developer and manufacturer of high performance digital cameras and custom imaging solutions through its Teledyne DALSA product lines. Their imaging solutions offer a unique combination of speed, resolution and sensitivity to meet the most demanding digital imaging requirements and are deployed worldwide in a wide range of industrial and scientific applications.\nNotes to Editors:\nFor media inquiries, please contact:\nA photo accompanying this announcement is available on https://www.globenewswire.com/NewsRoom/AttachmentNg/81a715ba-6684-4c1f-8c36-dfc81d2d9dce","domain":"optical_engineering"}
{"url":"http://baugh.vpmachinmine.xyz/prizes/Fiber-laser-cutting-machine-video.html","date":"2021-06-22T02:35:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488504969.64/warc/CC-MAIN-20210622002655-20210622032655-00033.warc.gz","language_score":0.8747422099113464,"token_count":964,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__93499321","lang":"en","text":"High Accuracy Fiber Laser Cutting SS Tube Guangzhou Professional laser manufacturer Baisheng laser ,since 2004. Model:F3015BE Feature: dual use plate and pipe laser cutting machine ,mainly for sheet metal cutting ,tube cutting unit is an assisted function.\nFibre Laser Cutting Machines. Designed for cutting sheet metal. Fibre Laser Cutting Technology: Fibre laser cutting works by focusing the power of a high-power laser onto the surface of the material to be cut. The energy in the laser beam is absorbed into the surface of material, and the energy of the laser is converted into heat, which melts or vaporizes the material.\nPrecise Laser-Cut galvanized Steel National Emblem and Steel Portrait video Fiber laser cutting machine can achieve precise laser cutting effect,amazing edge quality .video shows baisheng laser F3015E cuts thin galvanized Steel National Emblem and stainless steel portrait. it is not easy for lower powered laser to cut sharp corner ,the 1500W laser seems cut very well t.Fibre Laser Cutting Machines are fast becoming more affordable to many more industries and business than ever before. At one time this technology was out of the reach for smaller engineering and fabrication firms. However due to the advances in manufacturing and parts cost falling, these high-end machines are now much more affordable and accessible.Compared to traditional CO2 laser machines or YAG lasers, fiber laser machines are more versatile in metals processing, especially for sheet metal engraving, cutting and marking. Also, when processing a wide range of metals, the fiber laser machines all can cut in a very precise way accompanied with high quality cutting edge and faster speed. And more important, our fiber laser cutting.\nLF4020GH 8000W Fiber Laser Cutting Machine. Product Center; Fiber Laser Cutting Machine; CO2 Laser Cutting Machine.Read More\nBesCutter offers best deals on Fiber Laser Cutter, CO2 Laser Cutting and Engraving Machine, UV Flatbed Printer, Galvo Laser Engraver and Glass Laser Tube Our Customers Testimonials Quality made UV flatbed with top knowledge service and support. We looked at Mimaki, Fuji, CET and we made the best decision of choosing Rose Graphix. B. Sign Up as Distributor Today! Call (239) 785-8999 Sign in or.Read More\nVideo. 500W fiber laser cutting machine for stainless sheet September 8, 2018 - 1:01 am; Stainless Steel Wire Mesh Fiber Laser Cutting Machine September 5, 2018 - 12:10 am; fiber laser cutting 1mm stainless steel September 3, 2018 - 12:40 am.Read More\nThis video introduces a full protection fiber laser cutting machine with output power from1000-4000W. It adopts fully enclosed laser protective cover, professional CNC cutting system, top imported parts and strict assembly process to ensure safe, stable, efficient and high precision operation of the cutting machine. Widely used in all kinds of metal plate. Firstly, let's take a look at the.Read More\nThis video introduces a high-precision, small-format fiber laser cutting machine.It is designed with a safety cover with a small format. Therefore, the fiber laser cutting machine is the best choice for small-scale, especially home users. It can complete the tasks assigned by the user on the cutting machine.Read More\nLatest Products. Fiber Laser Cutting Machine 1530S 2020-05-05 - 01:41; High power fiber laser cutting machine-Nancy 2020-04-11 - 00:36; 1530G Fiber Laser Cutting Machine 2019-12-24 - 03:41.Read More\nCO2 laser engraving machines and laser cutter machines are extremely popular in education and industry alike due to their low running costs and price of spare parts. All of our CO2 filled glass laser tubes are water cooled, extremely durable and with a typical life expectancy of 18 months to 7 years. Unlike some other laser sources such as metal tubes, our glass CO2 tubes are inexpensive to.Read More\nFiber Laser Cutting Machine. Fiber Laser Cutting Machines, flat bed 2D industrial lasers have become very popular, with a ever increasing number of metalworking workshops realising the excellence that industrial fiber laser cutting machine technology offers. Our range offers available powers of 2Kw to 10Kw. automatic load, unload operation.Read More\nStainless Steel Tube Cutting Machine Video - Manufacturers, Factory, Suppliers From China We are proud of the superior customer gratification and wide acceptance due to our persistent pursuit of top of the range both of those on merchandise and service for Stainless Steel Tube Cutting Machine Video, Cnc Tube Laser Cutter, Fiber Laser Steel Pipe Cutting Machine, Metal Tube Laser Cutting.Read More","domain":"optical_engineering"}
{"url":"https://referenceproducts.com/4k-sxrd-home-cinema-projector-vpl-vw885es/","date":"2021-06-17T17:14:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487630518.38/warc/CC-MAIN-20210617162149-20210617192149-00292.warc.gz","language_score":0.7101244926452637,"token_count":198,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__8337347","lang":"en","text":"Revel in stunning 4K HDR laser clarity in any home theater. With 2, 000 lumens, you’ll experience rich cinematic colors, smooth Motion, and dazzling brightness. A highly efficient laser light source gives you years of illumination and infinite dynamic contrast. Its compact size gives greater installation flexibility in any room size.\n- Screen Size Range: 42-85 inches from 8 feet; 62-126 inches from 12 feet, 83-167 inches from 16 feet\n- Resolution: Full 4K (4096 x 2160)\n- White Brightness: 2000 Lumens; Color Brightness: 2000 Lumens; Calibrated Brightness (cinema 1 mode): N/A\n- Contrast Ratio: Infinite Dynamic Contrast using real-time laser light level control; Lens Shift: Vertical +85%/- 80%; Horizontal +/- 31%\n- Warranty: 3 Year Limited\n- Lamp Life: 20,000 hours\n- Connectivity: HDMI (2)","domain":"optical_engineering"}
{"url":"https://pixent.com/product/p006-5050-a-rgb/","date":"2024-04-16T12:50:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817095.3/warc/CC-MAIN-20240416124708-20240416154708-00530.warc.gz","language_score":0.937220573425293,"token_count":173,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__141588992","lang":"en","text":"P006 5050 is a passive light emitting package with no programmability, which has the shape of a 5050 LED chip. Each lighting element is a pixel, and the intensities of the pixels are driven by the respective input pins. These LEDs are packaged in the industry CLPP6 package.\nThe P006 5050 RGB LED is a tri-color LED (Red, Green, and Blue) designed to be used individually or in conjunction with the P108 series LED which has an external driver. Used together, it is possible to create a programmable circuit driven by 12 and 24 volts. The LED measures 5.0×5.0x1.6mm and consumes 0.3 watts of power in typical usage. The top surface of this LED is white.\nDiscrete LEDs are shipped in reels of 1,000 pieces.","domain":"optical_engineering"}
{"url":"https://rrturbos.com/laser-reminder-303","date":"2023-05-30T00:36:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644915.48/warc/CC-MAIN-20230530000715-20230530030715-00500.warc.gz","language_score":0.9592323303222656,"token_count":1126,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__147030180","lang":"en","text":"This high-power laser reminder features a powerful environment-friendly ray. Its size, weight, and also layout make it a mobile and also hassle-free product. The jd-303 is made from black anodized aerial light weight aluminum, making it light-weight and also easy to hold. This model is ideal for usage in astronomy as well as discussions. Its constant setting, science shape, and power-saving features make it optimal for training as well as presentations.The ZJM-303 green laser is an expert tool with outstanding efficiency class III 532nm as well as maximum outcome power of 5000 mW. It includes a Peltrier cell cooling system to stop overheating the diode. The ZJM-303 additionally includes an IR filter as well as a 3.7 V 3000mAh rechargeable battery. The zjm-303 has a security secret and also flexible light beam size as well as head for optimal precision.The ZJM-303 eco-friendly laser is a professional tool with outstanding performance.\nThis design has a high-power course III 532nm laser with a maximum result power of 5000mW. It additionally includes a Peltrier cell air conditioning system as well as a IR filter. The zjm-303 eco-friendly laser uses a rechargeable 3.7 V battery. It additionally consists of a safety key, zoom, and also adjustable beam width.The ZJM-303 environment-friendly laser is a professional instrument with exceptional efficiency class III 532nm.\nThis guideline likewise has an IR filter to stop getting too hot. The zjm-303 environment-friendly laser is equipped with a 3.7 V 3000mAh battery as well as is powered by a lithium-ion battery. The laser pointer has a security trick, a flexible light beam size, and flexible head.The ZJM-303 green laser is an expert instrument. The mw rating of the laser is 5000mW.\nThis eco-friendly laser tip has a 3.3 V 3000mAh rechargeable battery. The jd-303 is equipped with a security key as well as a zoom. The zoom as well as adjustable beam of light size make it a really convenient tool for training as well as discovering. This product can be used in colleges, museums, as well as various other locations of work.The ZJM-303 green laser is an expert tool with a 5000 mW outcome power.\nIt is capable of getting to 10000mts in excellent conditions. It includes a flexible head as well as a battery charger. The luch is made from green and red acetate. Both kinds of materials are light, as well as the lasers are risk-free to use. If you are unsure concerning which color to pick, you can consult a doctor for further information.Despite its impressive performance, this environment-friendly cheap laser pointer has a long-range variety. It can reach 10000mts under perfect problems.\nThe luch’s beam is adjustable, so you can utilize it to make the best presentation. A terrific way to obtain the attention of an area full of individuals is to show them what you’re doing. This eco-friendly laser will certainly make the area glimmer, and also it will certainly likewise make the whole room appearance better.This green laser reminder has a 5000mW outcome power. Its thumbs-up is 300 times extra effective than the red one. Furthermore, it has a battery charger.\nUnlike other laser pointers, the ZJM-303 is a specialist instrument with high-performance abilities. The ZJM-303 has many features that make it ideal for discussions. The LED indicator light is very easy to make use of. The safety and security trick as well as IR filter make it perfect for classroom use.The ZJM-303 is a specialist eco-friendly laser with a top quality efficiency. Its high-powered 532 nm environment-friendly laser has a variety of 10000 metrov as well as has a 3.7 V rechargeable battery.\nIt has a safety and security key and flexible beam width. It can be used in a variety of applications and settings. This is a very versatile gadget that can be utilized to mention various things.The ZJD-303 laser kit features a dual-colored IR laser. It includes 3 different colors that show up at a range. A single shade laser is simple to see at night, but the other color is unnoticeable.\nIt is simple to run as well as a fantastic option for discussions or an evening out with good friends. Its effective red laser is good for interior and also outside usage. It can be made use of in class, boardroom, and also other public settings.Its continuous setting, science shape, and power-saving features make it optimal for mentor as well as presentations.The ZJM-303 eco-friendly laser is a specialist instrument with phenomenal efficiency class III 532nm and also maximum result power of 5000 mW. The zjm-303 environment-friendly laser uses a rechargeable 3.7 V battery. The zjm-303 eco-friendly laser is geared up with a 3.7 V 3000mAh battery and is powered by a lithium-ion battery. The laser tip has a security trick, a flexible beam size, and adjustable head.The ZJM-303 green laser is an expert instrument. The security secret and also IR filter make it ideal for class use.The ZJM-303 is a professional eco-friendly laser with a high-grade efficiency.","domain":"optical_engineering"}
{"url":"https://www.cameogear.com/precision-focus-system","date":"2023-12-01T02:39:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00062.warc.gz","language_score":0.9101630449295044,"token_count":963,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__171419964","lang":"en","text":"Cameo Precision Focus System\nThe Cameo Precision Focus System is a complete system designed for efficient evaluation of the focus accuracy, optical quality and condition of your cameras and lenses for use in the field. It is comprised of a 40” Cameo Resolution Analysis Chart mounted on sleek, aluminum rail and carriage assembly. The unique features and design of the chart along with the ability to move the chart and carriage easily and precisely along the rail provides for a faster and more accurate method of checking lens focus marks and overall resolution of the camera and lens combination.\nThe system can transform the experience of your rental preps and equipment tests with qualitative precision. High-quality craftsmanship means the system is virtually maintenance-free while the sleek, smart single rail design provides a technical element that can enhance the look and professional feel of your facility.\nThe Cameo Precision Focus System is fully customizable to fit the length and height of your space and offers a range of options to fit your budget, including a digital distance readout for manually controlled units or a fully motorized system that is controlled by iPad interface. Other options include a pedestal workstation as well as charts for use in the field.\n• Test lens and camera combinations efficiently for faster,\nmore thorough equipment preps\n• Durable and virtually maintenance-free\n• Sleek, single-rail design with custom options to fit\nyour space and budget\nThe lightweight system is built on a single, aluminum rail, for a sleek and narrow design. The 40\" Analysis chart can be moved by hand to any distance desired. The optional Digital Distance Readout displays the distance from the focus plane to the chart. The motorized option adds an iPad for remote control of chart distance, and light intensity and color. The motorized option also offers the most efficient checking of lens markings and camera functionality. The system is customizable to fit the length and height of your space.\nResolution Analysis Charts\nThe Cameo 40\" Resolution Analysis Chart is designed especially for rental houses, service centers and institutions. It offers color and greyscale for at-a-glance verification of camera color and gamma reproduction as well as patterns representing frequencies that exceed the resolving power of 4K cameras. The 40\" size is convenient for testing wide focal lengths and includes a half-size inner frame for testing telephoto focal lengths. The 40\" chart can be customized with your logo. Cameo 20\" Resolution Analysis Charts and Bowtie Charts are also available as add-ons for use in the field.\nThe Cameo Precision Focus System base model is manually controlled, and can be outfitted with these additional options.\nDigital Distance Readout\nIn manual configuration, a Digital Distance Readout can be added to the system. This includes an encoder and 10” touch screen, which displays the distance of the chart in either feet and inches, or meters. A DMX enabled light can also be controlled from the touch screen.\nMotorized with iPad Interface\nThis system includes a motor and encoder that continuously tracks the chart position with a precision of 1/4mm and displays the distance on an iPad. A DMX enabled light can also be controlled from the iPad. An iPad Control System is included as part of the motorization kit. This interface allows users to quickly and easily move the chart to an exact distance without having to leave the workstation. The elegant user interface also controls the DMX lighting (on/off, color temperature, and intensity).\nThe Motorization Kit includes a Linux server and rack components, 4RU rack with shelf, and parts for installation of ethernet and DMX cables to rail and server for the iPad control.\nMeticulously crafted for maximum efficiency, the pedestal workstation provides a solid platform for mounting a camera and monitor. It offers two shelves, two power strips, and a drawer for any tools needed for a camera checkout.\n• The workstation is available a choice of wood finishes to suit the design of your space:\nblack, brown, grey, or unfinished.\n• Mounting options include a hi-hat to secure a tripod head and a monitor post mount.\n• Wheels can be added for applications where the system will be used on a track with a wall-mounted chart or as lens projector workstation. Track can be added to your system as needed.\nThe system works with any DMX capable light, such as the ARRI L5, ARRI SkyPanel S30, or Litepanels Astra 1x1. Custom lighting can be added your system, if you don’t already have an existing light.\nSee the Motorized System in Action\nWhere to Buy\nContact us directly for your custom quote.","domain":"optical_engineering"}
{"url":"https://travelafricamag.com/binoculars-in-focus/","date":"2020-07-08T09:42:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655896932.38/warc/CC-MAIN-20200708093606-20200708123606-00455.warc.gz","language_score":0.878774106502533,"token_count":397,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__68504874","lang":"en","text":"We asked Christine Percy from Swarovski to give us her guide to this essential piece of kit\ninoculars bring nature’s finest details right up close when you’re on safari. But as with cameras, there are a multitude on the market. So how do they all compare? In brief: the pricier the binoculars the more you get in terms of optimum optical and mechanical quality.\nHow to choose your binoculars\n1. Understand the numbers and letters: the first figure is the magnification; the second is the size of the objective lens in millimetres. A ‘W’ equals a ‘wide angle’ field of view and ‘B’ means that the eye cups are suitable for spectacles.\n2. The larger the magnification the closer the observed object becomes but the narrower the field of view.\n3. Go for binoculars with good dioptric compensation. This will enable you to adjust the barrels separately to accommodate any visual impairment.\n4. If you wear spectacles, look for twist-in eye cups.\n5. Make sure that the lenses and prisms have decent coatings for better colour reproduction and greater light transmission.\n6. Pick binoculars with HD (high-definition) glass, which will reduce colour fringing.\n7. Investigate the ergonomics and weight thoroughly. This will determine how they feel in your hand over long periods of observation.\n“Binoculars are indispensable on safari. Much of what you see will be distant or half-hidden. If you’re a first-timer, practise before you set out. And bring your own: don’t rely on borrowing other people’s, who may, understandably, refuse to share them at a critical moment.” Avid birder and travel journalist Mike Unwin\nFirst published in Travel Africa edition 72, Autumn 2015","domain":"optical_engineering"}
{"url":"https://www.forskningsradet.no/en/about/science-communication/research-innovation-and-technology-on-new-stamps/stingray/","date":"2024-04-12T10:34:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00296.warc.gz","language_score":0.947950541973114,"token_count":237,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__70698212","lang":"en","text":"Norwegian company uses laser to kill salmon lice\nThe Norwegian company Stingray Marine Solutions AS has developed a system that uses laser to kill salmon lice.\nThe exponential growth of salmon farming in Norway since the 1980s has had major economic and ecological consequences. Salmon lice cause physical damage to the fish and have become a major problem in the fish farming industry. The Norwegian company Stingray Marine Solutions AS has developed a system that uses laser to kill salmon lice. The system employs light, advanced cameras and a surgical laser to recognise lice on the salmon‘s skin. In the one to two seconds that it takes the salmon to swim past the system, the exact position of a louse on the fish is identified and the system directs the laser at it. This fires a pulse of light so hot that the louse dies while fish swim away unharmed. The system, known as “The Fish Health Hub”, also monitors the health and welfare of the fish, and some of the key indicators of fish welfare are swimming speed, sexual maturation and winter ulcers\nMessages at time of print 12 April 2024, 12:34 CEST","domain":"optical_engineering"}
{"url":"https://beverlyhillstrianglefamilydental.com/diode-laser.htm","date":"2017-12-14T20:54:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948550986.47/warc/CC-MAIN-20171214202730-20171214222730-00595.warc.gz","language_score":0.9218794107437134,"token_count":563,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__199023720","lang":"en","text":"The laser was first postulated by Albert Einstein in 1916. He suggested at that time, that portions of the electromagnetic field could be stimulated, thus producing amplified light. Thus the acronym LASER, stands for Light Amplification by Stimulated Emission of Radiation. Since then, various scientists have brought this technology forward to the point where dental applications were envisioned, and first tested in 1964. Since then, tremendous advancements have occurred, and we are now seeing hard and soft tissue lasers taking their place in dentistry.\nSome commonly asked questions:\n1. How does the dental laser work?\nThe laser emits concentrated energy in the form of a light beam. This beam vaporizes matter. The dental laser delivers a narrow pulsed beam and each pulse vaporizes only a specific number of cell layers within the circumference of the beam. This gives the dentist precise control over the laser.\n2. Why is the dental laser different than conventional treatment?\nThe dental laser is unique because it can be used as a surgical instrument without some of the routine, but unwanted surgical effects. The laser stops bleeding, and seals lymphatic and nerve endings, thereby by-passing inflammation and the usual discomfort that is associated with inflammation.\nTo summarize, the dental laser is:\n• faster and more efficient in many cases\n• essentially painless\n• more sterile (laser tip sterilizes itself in operation)\n• bloodless in most cases\n• less invasive\n• precise and conserving of healthy tissue\n• less painful post-operatively\n3. Do patients feel pain?\nThe majority of patients report no pain. A few report mild discomfort.\n4. Is anesthesia required?\nNot usually but this varies from patient to patient.\n5. Why is pain reduced so greatly?\nThe dental laser delivers pulses of energy too short to trigger a neural response.\n6. What are dental applications of the diode laser?\n• SOFT TISSUE MANAGEMENT: The laser is also beginning to be used in dental hygiene with great results. The ability of the laser to kill bacteria in periodontal pockets and rid those pockets of sick and infected tissue has enormous potential, not only as a means of arresting the progression of periodontal disease, but as a fast and simple prophylactic.\n• SURGERY: As a surgical instrument, the laser makes extremely accurate, bloodless incisions. Most patients report a substantial reduction in post-operative pain. The virtual elimination of bleeding during surgery gives the dentist a clear view of the operating field and reduces the risk of infection for the patient. This enhances healing greatly, speeding up recovery for the patient.\n7. Is the laser safe?\nAbsolutely, in every way, when used with good clinical judgment.","domain":"optical_engineering"}
{"url":"http://www.tlumikicar.waw.pl/21_Jun/19093.html","date":"2022-07-04T22:20:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104496688.78/warc/CC-MAIN-20220704202455-20220704232455-00794.warc.gz","language_score":0.879364013671875,"token_count":2121,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__60498551","lang":"en","text":"For grinding and polishing curve and plane surface of optical,quartz,crystal and electrical elements etc. Features: 1.Each main spindle and each swing frame are driven independently and are infinitely variable,speeds show on digital display. 2. Size and position of each eccenter stroke is easy to adjust. 3.\nGlass machining services. UQG Optics offers glass and optical machining services on customer materials and components. Jobs can range from simple tasks such as cutting a piece of float glass in half to more complex tasks such as cylindrically grinding quartz rods to tolerances of 0.01mm. We can undertake precision grinding and cutting of one ...\nBeing a leading source of fine precision Optical Instruments , we have a broad range of products and also provide various maintenance services to keep all of your instruments in good working order. For order please contact us at: Sales Manager : [email protected] Powered by Create your own unique website with customizable templates.\nGlass, ceramics, and hardened steels. Lens sizes from 5-500 mm. We have the right grinding solution for your application. The PRO 80 GTS is capable of grinding spherical and aspheric lenses up to 80mm in optimal cycle times with high precision.\nPioneers in the industry, we offer Optical Glass CR Lens Cutting Edge GrindingMachine -SKE-AHE, Standing Double Belt Machine With Working Plate Form, Optical Hand Edger, Optical Glass Cr Lens Cutting Machine, Lens CR Cutter Machine and Optical Glass Lens Grinding Polishing Machine from India. Interested in this product? 16 KGS.\nIn the grinding process, a rotating cup-shaped tool is mounted so that its axis of rotation intersects the axis of the lens at the centre of curvature of the desired spherical surface. The obliquity of the tool axis must be adjusted so that the rim of the tool cuts across the centre of the (concave) lens being generated.\n9) Mount and secure lens blanks or optical lenses in holding tools or chucks of cutting, polishing, grinding, or coating machines. 10) Mount, secure, and align finished lenses in frames or optical assemblies, using precision hand tools. 11) Position and adjust cutting tools to specified curvature, dimensions, and depth of cut.\n2,812 optical lens grinding products are offered for sale by suppliers on Alibaba.com, of which lenses accounts for 10%, led lenses & reflectors accounts for 1%, and eyeglasses lenses accounts for 1%. A wide variety of optical lens grinding options are available to you, such as optical.\nInsaco, Inc. Lens Grinding & Polishing Specialized Lens Generating and Polishing Equipment allows Insaco to Manufacture a wide variety of Lens in Sapphire and other Optical Materials. Since 1947 Insaco has been a precision machining and polishing fabricator of parts from all technical ceramics, sapphire, glass and quartz.\nSynonyms, crossword answers and other related words for GRINDING MACHINE [mill] We hope that the following list of synonyms for the word mill will help you to finish your crossword today. We've arranged the synonyms in length order so that they are easier to find. 1 letter words C - G 3 letter words CUT - FIN - JAG 4 letter words\nConventional Spherical Optics Utilizing CNC Optical Manufacturing. For optical lenses, RPO provides a broad range of excellence in traditional optics utilizing advanced high speed Computer-Numerically Controlled (CNC) equipment to perform lens grinding, polishing and centering. From prototypes to high volumes of 10,000 pieces per month, your ...\nOct 15, 2015 · Lenses were produced by grinding them against a metal tool called a \" lap,\" which had been produced using a lathe. Convex lenses required a lap having a portion of a hemispherical cavity. A male form was used for concave lenses. The laps could be made from any metal, since hardness was not a major factor.\nDesciption. Optical Glass Lens Grinding Polishing Tools. Diamond tools are used in the milling, finishing, super finishing, polishing and edge grinding processes of optical elements. Compared with common abrasives such as corundum, silicon carbide, ect., diamond tools have high grinding efficiency. Cutting Wheels.\nhybco model 1900 tool & cutter grinder, 2100 two-way fixture, comparator, vari-speed, dresser, 1980 (10582) manufacturer: dresser table work surface 6\" x 36\" longitudinal table travel 14\" cross travel 6-1/2\" grinding spindle, vertical travel 7-1/4\" handwheels, grad. 0.0005\" grinder spindle tilt 25 deg.\noptical grinding machine are equipped with lenses that are absolutely powerful and can conduct all kinds of optical tests. Alibaba.com offers optimum quality. optical grinding machine that are available in distinct colors, shapes, sizes, features, and other aspects depending on the selection of the models. These products are shock-proof ...\nThe manufacture of a lens element that is pure enough to be used for photography is pretty complex. You need materials with adequate purity, light transmission, and hardness, not to mention a fair bit of precision in your grinding mechanism to ensure you refract light enough to focus it where you want it focused, and do so evenly across the surface of the lens.\nFind here online price details of companies selling Optical Glass Cutting Machine. Get info of suppliers, manufacturers, exporters, traders of Optical Glass Cutting Machine for buying in India.\nJul 12, 2014 · Maybe this info will help those trying to machine plastic lenses. ... your friend for rough grinding to shape. ... optical manufacture, Gerber, makes a machine that builds a one time use lap tool ...\nOptical Lens Cutter Eyeglass Cutting Milling Machine CP-4A Optometry Equipment 1 offer from $239.00 Sanding Blocks Polishing Grinding Block Diamond Polishing Hand Pads Block For Granite Marble Glass Grinding 60-3000Grit (1500 Grit)\nThe Crossword Solver found 20 answers to the grinding machine crossword clue. The Crossword Solver finds answers to American-style crosswords, British-style crosswords, general knowledge crosswords and cryptic crossword puzzles. Enter the answer length or the answer pattern to get better results. Click the answer to find similar crossword clues .\nIf you’re still in two minds about lens grinding machine and are thinking about choosing a similar product, AliExpress is a great place to compare prices and sellers. We’ll help you to work out whether it’s worth paying extra for a high-end version or whether you’re getting just as good a deal by getting the cheaper item.\nThis page lists manufacturers of quality Optical Lens Grinding, find out more by clicking optical lens, convex lens, lens with competitive price. You can always contact our buyer service for a recommended list of meters and Instruments manufacturers tailored just for your demand.\nMake life easy with state-of-the-art motion control components and positioning systems. And never sacrifice quality by using the PRO Series or eSX 5-Axis CNC lens grinding platform that’s right for you. Spheres, aspheres, cylinders, prisms, and freeforms. Glass, ceramics, and hardened steels. Lens sizes from 5-500 mm.\nCerrolow-136 alloy is used in optical manufacturing for lens blocking for buffing and grinding optical lenses and components. Optical Coherence Tomography Further reported examples for surface profilometry with OCT include the shape determination for grinding optical lenses [30, 31] or surface roughness measurements on paper  and ...\nLens - Lens - Manufacturing optical lenses: In the manufacture of lenses, slabs of glass are cut with a glass saw or slitting disk; a piece of the desired type and shape is chipped to a rough, round blank, or the pieces may be heated to softness, rolled to a round shape, and pressed in a mold to the desired size and to approximately the desired curvature of the surfaces.\ngrinding milling sawing With more than 70 years of industry experience, Amada Machine Tools America is committed to helping our customers deliver dependable service and top-quality work with exceptional grinding solutions. Whether you need profile, forming, surface, or rotary grinding, we have the right solution for your specific needs.\nOptical Instrument Layout Blocker Machine New Centering Meter Device Optical Electric Lens Center Layout Blocker 4. It has two modes of operation with the optical center / geometric center. 5. It can correct scanning data by itself, including axis and the distance of nose bridge.\nGerber Optical, Inc. Optical lens or lap blank surfacing machine, related method and cutting tool for use therewith US20050221721A1 (en) * 2004-04-05: 2005-10-06: Valle Hector Leopoldo A: Method and apparatus for grinding and polishing free-form ophthalmic surfaces USD865030S1 (en) 2010-04-09: 2019-10-29: Sony Corporation\nThe TFL robot dips the lenses into the dyes and lifts them out. SCHNEIDER PC tinting technology. allows to freely choose between any color style and fashion in combination with best abrasion resistant hard coatings. Polycarbonate tinting. A broad range of fashion colors for homogenous tinting, brilliant or dark, and gradient tinting is now ...\nThe eSX 150 lens grinding machine has 5 controllable axes: X, Y, Z, B & C with up to 5 axes of simultaneous movement. The powerful Fagor 8070 CNC with user-friendly G Series software make the eSX 150 optical machining center an excellent choice for prototype to production manufacturing of precision optics up to 150mm. Multiple advanced features ...\nManufacturer of Machinery for Optical Lens Industry - Optical Glass CR Lens Cutting Edge GrindingMachine -SKE-AHE, Standing Double Belt Machine With Working Plate Form, Optical Hand Edger and Optical Glass Cr Lens Cutting Machine offered by S. K. Enterprise, Ahmedabad, Gujarat.","domain":"optical_engineering"}
{"url":"https://www.aparolight.com/meteor-series","date":"2024-02-23T07:01:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474361.75/warc/CC-MAIN-20240223053503-20240223083503-00338.warc.gz","language_score":0.9202561974525452,"token_count":233,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__204528422","lang":"en","text":"METEOR Pixel Tube\nThe APARO Meteor series pixel sticks are built with APARO's latest RGBCW technology, which can perform accurate bi-color light source from tungsten to daylight (CCT), HSI & RGB, and tons of different lighting scene effects, including RGBCW matrix effect. It can be connected with DeSal Lite+ Bluetooth APP for remote lighting control, IOS & Android APP are available to download on Apple APP Store and Playstore.\nConsidering the flexibility and mobility during use, Meteor 60 comes with a built-in battery (7.4V/3200MAH), which is suitable for outdoor use. Meteor 60 has been tested to last up to two hours of continuous use at full power output.\nMeteor pixel sticks (Meteor 60, Meteor 120, Meteor 240) are available in three sizes, 2 feet/20W, 4 feet/40W, 8 feet/80W, all three models are made of durable aluminum housing to provide long lasting fixture protection. Meteor is also equipped with mini XLR input and output ports to support DMX to meet different lighting control needs.","domain":"optical_engineering"}
{"url":"https://freebetbaru.xyz/what-is-polarization-in-glasses/","date":"2023-12-05T08:52:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00489.warc.gz","language_score":0.9184657335281372,"token_count":406,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__231413907","lang":"en","text":"The sunny season is already open, so it will be useful for you to read the article about sunglasses. But not with a simple lens, but with a polarized one. These lenses help protect your eyes from the blinding glare that occurs when the sun’s rays reflect off horizontal surfaces. This helps to increase clarity of vision and avoid eye strain.\nThe lenses of polarized sunglasses have a multi-layer structure, inside of which there is a transparent film, which acts as a filter. This lens blocks 99% of UV rays and thus protects your eyesight!\nWhen using conventional sun lenses, only the intensity of the penetrating light is reduced, but the glare is not blocked and continues to have a negative effect on the human eye. Many manufacturers are trying to combat this by applying additional anti-reflective coatings to the surface of eyeglass optics. They improve the situation somewhat, but they will not replace a full-fledged polarizing filter.\nPolarized sunglasses do a very good job of protecting your eyes from harmful UV rays. They reduce the strength of the luminous flux and reduce its brightness.\nWe would like to present to your attention the glasses of our store GP Style! The classic shape and sophisticated design will complement your style and protect your eyesight from bright glare rays! Trendy women’s sunglasses with polarized classic frames are an indispensable accessory for the summer of 2022!\nClick on the cards and go shopping!\nBenefits of these glasses:\n— Protect the organs of vision from glare (near water, on a snowy field, etc.);\n— Reduce eye strain;\n— Increase visual comfort, increase the clarity and contrast of the image;\n— Increase driving safety.\nClassic models are suitable for any face shape, both adults and teenagers. The frame is made of high quality, hypoallergenic material.\nSee more photos from all angles in the product cards.\nWe are waiting for you in our store! Sincerely, GP Style team!","domain":"optical_engineering"}
{"url":"https://ke.hku.hk/story/global/high-speed-imaging-technology","date":"2024-04-13T19:40:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00252.warc.gz","language_score":0.9432843923568726,"token_count":719,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__283486","lang":"en","text":"HKU Engineering & UC Berkeley Team Develops High-speed Imaging Technology that Captures Blood Flow at the Single-cell Level in the Awake Brain\nOur interdisciplinary research team has provided unprecedented moving images of how individual blood cells flow in the brain of a mouse that was awake\nA research team in the field of imaging technology of the Department of Electrical and Electronic Engineering (EEE) of the University of Hong Kong (HKU) in collaboration with the University of California, Berkeley (UC Berkeley) has provided unprecedented moving images of how individual blood cells flow in the brain of a mouse that was awake.\nThe development provides neuroscientists with a tool to better understand the inner workings of the brain, especially how blood flow changes at the level of individual blood vessels and across the larger vessel network within the brain – an important cue to unravel how energy is distributed and regulated in healthy and diseased brains (e.g. Alzheimer’s disease, strokes).\nThe output was reported in “Ultrafast two-photon fluorescence imaging of cerebral blood circulation in the mouse brain in vivo”, which was published recently in the peer-reviewed Proceedings of the National Academy of Sciences.\nThe team’s microscope has super high-speed two-photon fluorescence imaging that penetrates light more deeply into tissue than other gold-standard microscopy technologies to capture blood cells in fast motion. Most other technologies work with one-photon fluorescence and have a slow focus-scanning mechanism, which means they are limited to capturing low-flow speed regimens in anaesthetised animals that are not moving.\nThe two-photon imaging technology developed by the team, on the other hand, can capture faster moving flows – in this case, red blood cells – even when the animals are awake and able to move somewhat. The flow of red blood cells is an important cue of brain activity, which is fuelled by energy from blood supply.\nThe interdisciplinary research team, which includes engineers and neurobiologists, was led by Professor Ji Na of UC Berkeley’s Department of Molecular & Cell Biology and Professor Kevin Tsia of HKU EEE, who is also the Programme Director of the Biomedical Engineering Programme.\n“One of the key limitations in other brain imaging technologies has been the resolution of images. Our technology is able to deal with these with very fast-moving images, at least 100 times faster than current state-of-the-art options, and capture them down to the individual blood cells. You can count the cells and trace their trajectories,” Professor Tsia said.\nImages of the two approaches show stark differences. In the low-flow speed technology, the blood flow resembles a blur and smear. Images from the two-photon fluorescence technology are much more detailed and clearly show individual cells in fast motion.\nThe research team initially reported on their high-speed two-photon fluorescence technology in 2020 when they used it to successfully record the millisecond electrical signals of the neurons in an awake mouse. With this latest output, they have expanded the potential of their technology. The same technology has also been applied by Professor Tsia’s team in cancer screening through imaging cancer cells in blood.\n“The work on imaging individual blood cells in-vivo is an extension of that work and shows that the technology can be extended to other kinds of neuroscience research, especially cerebral haemodynamics, which is the dynamics of blood flow to the brain,” Professor Tsia said.","domain":"optical_engineering"}
{"url":"https://texassolarguys.com/2022/01/31/the-future-of-solar-power/","date":"2023-12-07T20:37:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00690.warc.gz","language_score":0.923872709274292,"token_count":601,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__253061017","lang":"en","text":"As more people continue to turn toward renewable energy sources to phase out fossil fuels, scientists are developing innovations in solar technology that might sound straight out of science fiction but are 100% real. From new ways of harvesting light from the sun to new forms of solar panels, the world of solar energy will look a lot different in the coming decade. Here’s a look at some of the new solar power innovations that will be shaping the world of green energy in the years to come.\nSolar Energy From Other Light Spectrums\nOne of the most significant innovations in solar technology involves obtaining power from other light spectrums. Currently, solar panels absorb light from the visible spectrum of light. However, there are different spectrums than just visible light, which aren’t being absorbed for energy; until now.\nBy combining inorganic semiconductor nanocrystals with organic molecules and utilizing new materials, such as titanium, scientists have developed semiconductors capable of upconverting photons in both visible and infrared light spectrums. As a result, this innovation in solar technology will allow solar panels to convert a new type of light into energy that photovoltaic cells can absorb, increasing the overall efficiency of the panels.\nObtaining Solar Energy From Biological Sources\nAnother kind of innovation in solar technology is the creation of bio solar cells. Scientists have been able to develop panels that generate electricity by utilizing the photosynthesis and respiratory activities of cyanobacteria. This kind of bacteria is found in many locations around the world, making it a green energy source. However, while developments are still being made, it isn’t a practical energy source just yet.\nOther scientists have made innovations in solar technology using bioelectrical systems. Enzymes, microbes, and other systems can create electrochemical reactions to produce energy, but scientists are having difficulty developing solar cells using this technique.\nSolar Power is Taking New Forms and Shapes\nWhile solar panels are the premier form of solar energy, new technology will help further develop solar panels. Here are a few advancements you can expect to see in the coming years:\n- Solar film is printed in rolls and dramatically reduces the cost of solar panels, and comes in a much smaller size.\n- Solar paint looks very similar to regular paint, except it has countless light-sensitive materials used to harness the sun’s power. It may not be as effective as traditional solar panels and more research and testing\n- Solar windows, which can absorb light to make electricity but remain see-through. Some scientists have developed solar windows that can change from transparent to tinted to absorb light better.\n- Solar hairs are light-absorbing nanowires on a carbon nanotube fabric capable of absorbing more energy than silicone can.\nIf your business is looking for commercial solar installations in Austin, TX, reach out to Texas Solar Guys for help. Check out our solar savings estimator to help create a custom solar proposal before your solar panel installation.","domain":"optical_engineering"}
{"url":"https://www.fibernexxt.com/fiber-contractor-services","date":"2023-09-30T13:11:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510676.40/warc/CC-MAIN-20230930113949-20230930143949-00173.warc.gz","language_score":0.8969005942344666,"token_count":406,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__220494414","lang":"en","text":"Fiber Optic Contractors For Your Fiber Project\nCertified Fiber Optic Contractors for Your Needs\nBased in Marietta, Georgia near Atlanta, our certified fiber contractors have a combined 20+ years of experience and Fiber Optic Association (FOA) certification.\nOur fiber splicing contractors specialize in fusion splicing and handle fiber termination, testing, troubleshooting, and emergency outage repairs. We work in a variety of environments including inside/outside plant, fiber to the home and field training.\nOur clients include broadband providers, internet service providers, co-ops, telecomm companies, FTTH contractors, data centers, and electric utility construction services.\nArrange a free consultation with our lead contractor at (678) 515-0115.\nWe offer a range of services including:\nDocument fiber cable location, connectivity, and troubleshooting results for record updates\nPerform insertion loss, power, and OTDR test\nPrepare and fusion splice 12ct, 48ct, and 96ct+ fiber cables, pedestals, enclosures, and cabinets\nRepair and splice SM cables in FDH, MINI NIU and point of contact access locations for FTTH installation\nComplete mid-entries, troubleshoot, report low light levels on pedestals, and test signal quality on FTTH network\nVerify fiber paths for upgrading customer network services to DWDM or CWDM\nCertified Fiber Optic Training For Your Team\nOur fiber optic contractors are also certified instructors by the Fiber Optic Association (FOA). Learn basic fiber optic installation skills or enhance your experience with FOA certification. Attend training in our classrooms or let us bring training to you. We provide skills training or training with fiber optic certification. Call us to discuss your needs.\nWe also offer 1-Day or 2-Day advanced fiber optic certification classes for your experienced techs and managers with 2+ years of experience.","domain":"optical_engineering"}
{"url":"https://emmas.site/blog/2020/04/03/lunar-dawn","date":"2023-06-07T02:47:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653501.53/warc/CC-MAIN-20230607010703-20230607040703-00499.warc.gz","language_score":0.9324368834495544,"token_count":169,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__26777685","lang":"en","text":"I’m learning how to use a bare CCD camera attached to my telescope. There are no defaults, that means this Moon is rather blue when it should be more grey. As I said, I’m learning.\nThe feature I want to point out is sunlight on the higher elevations that are still in darkness. You can see the sunlit patches in the darkness just the left of the middle of the photo. Looking along the Terminator is one of the best ways to see the detail of the surface.\nI took this photo through my 90mm Maksutov-Cassegrain telescope with a focal length of 1,250mm. It’s a compact telescope, but still gets nice views. I used a 8 megapixel camera to take the image in FITS format which I converted to JPEG.","domain":"optical_engineering"}
{"url":"https://techpowerup.com.au/products/canon-35-mm-f-1-8-macro-fixed-lens","date":"2023-12-10T04:32:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101195.85/warc/CC-MAIN-20231210025335-20231210055335-00505.warc.gz","language_score":0.7893227934837341,"token_count":210,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__242496137","lang":"en","text":"Notify me when available\nCanon - 35 mm - f/1.8 - Macro Fixed Lens\nCompact, lightweight and versatile lens for the EOS R System\n35mm focal length for versatile shootingCapture subjects with a natural look that closely resembles your normal field of vision and creates a sense of spaciousness and perspective in your pictures.\nMacro shooting with maximum magnification of 0.5x\nGet up close to your subject to reveal hidden details with minimum focal distance of just 17cm and f/1.8 maximum aperture for smooth bokeh.\nLens control ring for fast intuitive shooting\nThe RF 35mm f/1.8 IS STM features Canon's new lens control ring offering customizable control over aperture, shutter speed, ISO or exposure compensation\nSuper stable images with 5-stop Image Stabilizer (IS)\nThe RF 35mm f/1.8 IS STM lens works in tandem with the camera to provide Dual Sensing IS for stills and 5-axis Combination IS for movies.","domain":"optical_engineering"}
{"url":"http://www.greatinsurancedeal.com/adam-levine-zbzr/66j35.php?ad2731=laser-stands-for","date":"2021-05-16T14:42:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991224.58/warc/CC-MAIN-20210516140441-20210516170441-00225.warc.gz","language_score":0.8658014535903931,"token_count":1727,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__198751141","lang":"en","text":"laser stands for\nOrder online today! In other words, a laser is a device capable of converting light or electrical energy into a focused, high energy beam. 4443 5611 465. The term laser is an acronym. by villamany Dec 26, 2014 . Abbreviation to define. The acronym LASER stands for Light amplification by stimulated emission of radiation. 'Light Amplification by Stimulated Emission of Radiation' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. 3512 3644 19. candle holder laser cut Tree & Animals wood present tea candle . 5 sold. The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. The light of marking lasers is generated in pulses. Laser cut Twirl . Start studying Laser 1. ; What does LASER mean? Adjustable Laser Level 120cm Tripod Base Stand for Laser Level Measuring Tool US. 3477 3720 35. For LASER we have found 4 definitions. Academic & Science » Chemistry -- and more... Liberal Arts Science and Engineering Resources, Language Arts Science Enrichment And Resource, Light Amplification of Stimulated Emission of Radiation, Light Amplification of Simulated Emission and Radiation, Laker Afterschool Science, Engineering, and Robotics, Life After Stroke Exercise Rehabilitation, Londis Advanced Scanning Enabled Retailer, LASCR - LASD - LASE - LASED - LASEK - LASF - LASG - LASH - LASI - LASIK. About 0% of these are Laser Cutting Machines, 0% are Laser Equipment Parts, and 0% are Laser Engraving Machines. $14.99. Think how jealous you’re friends will be when you tell them you got your laser stands for on AliExpress. LASER or laser stands for \"Light Amphlication by Stimulated Emission of Radiation. by mistercrunch Jul 9, 2014 . Looking for online definition of LASER or what LASER stands for? LASER Stands For: All acronyms (55) Airports & Locations Business & Finance (1) … In a coherent beam of electromagnetic energy, all the waves have the same frequency and phase. Printer friendly. 5 out of 5 stars (856) 856 reviews. Possible LASER meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Laser therapy is a medical treatment that uses a strong beam of light to cut, burn, or destroy tissue. Sale Price $13.50 $ 13.50 $ … Alibaba.com offers 47,027 laser stands for products. Laser has always been spelled this way but people have … $13.91. Differences in laser return times and wavelengths can then be used to make digital 3-D representations of the target. Surgery LASER acronym meaning defined here. Lidar (/ ˈ l aɪ d ɑːr /, also LIDAR, LiDAR, and LADAR) is a method for measuring distances by illuminating the target with laser light and measuring the reflection with a sensor. It is a device which produces lights. 1.5M/59\" Aluminum Tripod Stand Extend Adjustable For Universal Laser Level + Bag. The gist of the article was that use of the\nwas related to the word it represented and not its pronunciation. The output of a laser is a coherent electromagnetic field. The term LASER stands for light amplification by stimulated emission of radiation. 6 sold. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. “Laser” is an acronym for light amplification by stimulated emission of radiation.A laser is created when the electrons in atoms in special glasses, crystals, or gases absorb energy from an electrical current or another laser and become “excited.” Click here to see if Laser Therapy is right for your practice. CHAT EMAIL ; Country/Region. Laser stands for Light Amplification by Stimulated Emission of Radiation. Benchtop Optical Mounts ideal for mounting or positioning optical filters, optical lenses, prisms, polarizers, or laser assemblies are available at Edmund Optics. But you may have to act fast as this top laser stands for is set to become one of the most sought-after best-sellers in no time. A wide variety of laser stands for options are available to you, such as certification. Generally, the pulse duration is non-adjustable. These lights have no existence in nature. The acronym laser stands for \\\"light amplification by stimulated emission of radiation.\\\" Lasers work as a result of resonant effects. Specifications. Cell Phone Stands FULL ALPHABET - Laser Ready File - SVG - Glowforge SpinCustoms. Find. It stands for light amplification by stimulated emission of radiation. A laser is a device that projects a highly concentrated narrow beam of light which is amplified to great brightness using stimulated radiation. === What Does \"LASER\" Stand For? High quality, affordable laser cut and personalised products. New search features Acronym Blog Free tools \"AcronymFinder.com. The list of 2.7k Laser acronyms and abbreviations (October 2020): LASER is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionary The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. 0 Find out what is the full meaning of LASER on Abbreviations.com! The lights can be produced through a process of optical amplification based on the stimulated emission of electromagnetic radiation. From shop SpinCustoms. Academic & Science » Electronics -- and more... Lincoln Advanced Science and Engineering Reinforcement, Leadership and Assistance for Science Education Reform, Legacy Application Systems Empowered Replacement. LASER is defined as Light Amplification by Stimulated Emission of Radiation very frequently. https://acronyms.thefreedictionary.com/LASER, New technologies such as high-power fiber, In the back of an Oregon machine shop in 1994, Lew Danielson founded Crimson Trace and revolutionized the shooting world with the introduction of his firearm, To solve this problem, Norlase developed an innovative patented solution using tapered diode double, Shimadzu has been focusing on establishing a light source industry for the next generation of advanced, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Fiber Lasers Market is Anticipated to Reach US$ 3.14 Billion by 2022, Dimed Laser Will Showcase Its Medical Laser Machines at the 23rd Annual Medicall Chennai, POWERING UP FOR SAN FRAN: SPIE Photonics West promises to deliver a swathe of information on industrial lasers and material processing in San Francisco from 2 to 7 February, Norlase develops new class of visible lasers, Shimadzu Develops Blue Direct Diode Laser with New High Brightness Levels, Laser processing activities in Finland--technological and educational view/Lazeriu technologinis ir edukacinis panaudojimas Suomijoje, Laser & Skin Surgery Center of Northern California, Laser Ablation and Resonance Ionization Spectroscopy, Laser Ablation Atomic Fluorescence Spectroscopy, Laser Ablation Inductively Coupled Plasma, Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry, Laser Activated Reflecting Geodetic Optical Satellite, Laser Aircrew Safety & Education Demonstrator, Light Amplification by Stimulated Emission of Radiation, Light Amplification by Stimulation Emission of Radiation, Leadership and Assistance for Science Education Reform, Linking Academic Scholars to Educational Resources, Learning About Safety by Experiencing Risk, Learning About Science, Engineering, and Research, Life After Stroke Exercise Rehabilitation.\nOlympus Pen E-pl7, Senior Electrical Engineer Salary, Greenschist Parent Rock, How To Become A Nurse Educator, Matzo Ball Soup Mix, Jenn-air Double Wall Oven, Cumin Meaning In Malayalam, Using Fresh Fruit In Cookies, Cosrx Rice Mask Ingredients,","domain":"optical_engineering"}
{"url":"https://www.bghydro.com/method-seven-agent-939-ledfx-glasses-led-outdoor.html","date":"2019-03-19T01:39:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912201882.11/warc/CC-MAIN-20190319012213-20190319034213-00124.warc.gz","language_score":0.919532299041748,"token_count":5747,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__139438702","lang":"en","text":"Full Spectrum LED lights produce very bright, white light. The technology is new, exciting and promising. The light may appear to be “normal white” but often contains high energy in the blue spectrum, and some manufacturers are experimenting with UV and infrared. Color balance is subtle, but protection is extremely important. Hence the debut of the Agent 939 LEDfx. Designed to protect you from the high energy spectrums, UV, and infrared all in style and comfort.\nMethod Seven delivers the LEDFx, a scientific formulation for comfort, visual acuity, safety and performance. The world’s first organic lens to block significant infrared heat energy, which keeps your eyes cool and moist. This is a polycarbonate lightweight lens. The LEDfx lens was designed and developed by Method Seven with over two years of research in collaboration with engineers, optical physicists, ophthalmologists and manufacturing at Carl Zeiss Vision. The lens is perfect for Full Spectrum LED and is also great for urban life outside the grow.\nThe Agent 939 frame wraps with a curved base 8 lens for full protection along with big and bold temple side for side light protection. Bomber hinges and recessed rubber nose pads make the Agent 939 a comfortable and durable tool. The Agent 939 frame is comfortable and flexible as it's made with TR90! TR90 was produced through Swiss technology as a thermoplastic material that is incredibly durable, flexible, and lightweight. Eyewear made with TR90 have a flexible quality that allows them to bend under pressure and contour your face comfortably.\nThe Agent 939 LEDFx filters and blocks light so effectively it doesn’t need to be super dark, so your eyes can work naturally even in very bright conditions providing the best experience for your eyes, your plants and your lifestyle.\nMethod Seven makes optics for gardeners\nWe've been working with grow lights for over 20 years. We've tolerated the discomfort. Some of us experience night-blindness, see spots get headaches and we know a few who have gone through retina replacement surgery. Not fun.\nWe've solved all these problems. We can all go back into the grow and start enjoying our plants, safely and comfortably. We've got you covered for any type of lighting. Try them or ask anyone who has. You've got to see to believe.\nMethod Seven offers two lines of grow glasses for HPS lighting environments. Method Seven Rendition HPS delivers \"Perfect Color\" for the world's ultimate grow experience in the intense yellow spectrum and harsh conditions of HPS lighting. They deliver absolutely the highest available optical clarity and ability to absorb infrared (heat). These are THE best lenses for the professional working extended hours under HPS or the passionate hobbyist who simply wants the best. The “plus” silver coating option makes our glass lens even better for working in high wattage environments or crossover use outside. Plus, they just look cool :-) Our patent pending formulation is manufactured with the highest quality German durable mineral glass to provide perfect color, perfect clarity, and 100% UV protection.\nOur synthetic lenses are manufactured for Method Seven by Carl Zeiss using Method Seven's unique lens technology and provide optimized color under HPS. And they provide exceptional clarity due to the high optical standards obtained by Carl Zeiss. They are very lightweight and unbreakable. We recommend our synthetic lenses to anyone with one grow light or who spends minimal time working under lights. The value of our synthetic lens makes these products great for outfitting larger crews who are working under lights but may not be making critical plant health and harvest decisions. Available either uncoated or silver coated (combining your indoor grow and outdoor lifestyle), 100% UV protection, and great value.\nBoth glasses provide benefits that clearly exceed the performance of all competitors.\nSunglasses are not for grow rooms!\nGrow rooms have lots of light, but it's not broad spectrum. Great for plants, but not your eyes. The rods and cones in your eyes need broad spectrum light to focus, see shapes, notice movement and see color. When you wear sunglasses, you make this worse - you darken all the light, so you squint less, but you still can't see color and it's even more difficult to focus. Things look muddy. Your brain struggles to compensate. That's where fatigue and headaches come from.\nMethod Seven Optics filter the harsh lighting and bring balanced color to your eyes. It's like working in full daylight, naturally. you can see foliage properly, spot pests and deficiencies early and easily. your brain relaxes. No headaches, no strain, and no long-term damage. Our glasses even eliminate the strobe effect produced by most HPS ballasts. And there's no adjustment period when you walk out of the grow room. With Method Seven, you can work with accuracy, comfort and safety.\nSee. Believe. Your eyes are worth it!\nCheap lenses distort light as it enters your eye. Like seeing double, or slightly cross-eyed, or just hazy. Focus and clarity are compromised. You may not notice it right away, but then again you can live for several minutes with a plastic bag stretched over your head. Doesn't mean you should do it.\nMethod Seven Rendition lenses are made in Germany from glass, melted in six ton batches to achieve perfect clarity with your Patent Pending formulation. They are asymmetrically ground and polished and built into custom frames in Italy. This is perfection.\nOur distortion free polycarbonate and nylon lens are made by Carl Zeiss. The absolute best synthetic lenses in the world. Your eyes are worth it!\nCustom RX available for all spectrums.\nHID lights are serious!\nUV damage is cumulative, like a small sun-burn on your cornea and retina with each exposure. No one talks about UVC from the Sun because it's filtered by the upper atmosphere. Surprise! It's the most dangerous UV and is produced by most HID lights. Method Seven lenses protect from ALL harmful UVA/B/C rays. Don't risk it. You think going to the dentist is expensive and painful, try a cornea replacement. PS: for extended hours in a grow room, a visor and sunblock is also a good idea...\nMethod Seven technology blends incredible color balancing for each of the standard grow lighting spectrums (HPS, Metal Halide, LED, Sun) with exceptionally high quality lenses that provide the best in optical clarity. Additionally, Method Seven protection removes all harmful UV A/B rays like most others but additionally also removes harmful UVC rays which are filtered out of sunlight by the upper atmosphere, but pose a significant hazard under grow lighting.\nMany growers suffer through unnecessary stress, fatigue, decreased yield, and even permanent eye injury from using sunglasses or cheaper knock-off grow room glasses. At best, even premium sunglasses attenuate (decrease) excess light in the grow room but do a horrible job of color balancing in indoor lighting environments, leading not only to discomfort and stress, but also to poor viewing and maintenance of your plants. Cheap grow room glasses do an okay job of color balancing, but typically have very poor optical quality and inadequate protection from UVC rays.\nTreat yourself and your grow to Method Seven quality and style!\nQ: Do Method Seven Glasses work outdoors?\nA: YES! YOU CAN WEAR YOUR METHOD SEVEN'S OUTDOORS TOO! Method Seven Technology blocks and completely protects your eyes from all harmful UVA/UVB/UVC light. Our glasses are appropriate to wear outdoors under any conditions which you choose. The HPS spectrum lenses filter out less visible spectrum light than most medium and dark sunglass lenses which means they are a great choice for lower light conditions, like mountain biking in the trees or skateboarding in the early morning, but they may not be your first choice for snowboarding on a sunny day when conditions are super bright. In very bright outdoor conditions the MH Silver Plus+ lens is a fantastic outdoor lens. Made from unbreakable polycarbonate; it’s a great choice for action sports. (LED glasses are not recommended for outdoors).\nQ: Why bother with grow glasses?\nA: SEE. BELIEVE. While HPS, Metal Halide, and LED lighting can provide effective lighting solutions and deliver plants the light energy needed for prolific vegetative growth, they also create a hostile working environment for the human eye. Humans see best under the balanced spectrum and light levels of natural daylight conditions. Grow room lighting produces extreme conditions of excess light, very unbalanced light from unique spectrum of each artificial grow light source (HPS, LED, MH), and dangerous UV radiation from UVA/UVB/UVC.\nSunglasses help attenuate (reduce) the excess light, but do nothing to help color balance the stressful and eye fatiguing spectrums of indoor garden lighting. Cheap grow glasses offer some improvement here, but usually at a much lower optical quality than good sunglasses. Both might not protect from UVC radiation which is not a significant concern in natural sunlight due to absorption by the earth's atmosphere but which is a concern in the modern grow room.\nOnly Method Seven provides definitive color balancing with options for all common indoor lighting sources, exceptional clarity, and 100% UVA/UVB/UVC protection. Don’t risk using sunglasses or cheap grow room glasses!\nQ: Why are Method Seven's so superior to other grow glasses?\nA: SEE. BELIEVE. Grow room lighting produces extreme conditions. The hazards include excess light, very unbalanced light from the unique spectrum of each artificial grow light source (HPS, LED, MH), and dangerous UV radiation from UVA/UVB/UVC. Ballasts used by HPS and MH grow lights also creates a high frequency strobe effect in the light from these bulbs. This is not immediately obvious to the conscious mind, but is very stressful to your eyes and impedes ability to easily focus on shapes and detect movement. Working in these environments without appropriate eyewear results in eye and general fatigue, inability to correctly monitor plants, and even permanent injury to your eyes. Method Seven Optics are designed and engineered specifically and carefully for these conditions.\nAll Method Seven lenses are made from either premium German mineral glass or high quality synthetics manufactured to our custom standards by Italy's Carl Zeiss - world leaders in optics for over 100 years. All are asymmetrically tuned bringing distortion free focus and clarity to your eyes. Rendition glass lenses virtually eliminate the strobe effect, and Carl Zeiss synthetic lenses reduce this to physiologically low levels.\nOther grow glasses attempt to color balance the extreme light spectrum of the grow room with varying degrees of success, though even those with decent light balancing typically use cheap plastic lenses with very poor clarity that distort light and are hazy or blurry. With cheap grow room glasses, your eyes and brain work overtime to compensate and you can experience fatigue, see spots, get headaches and in some cases experience damaging UV radiation.\nYour eyes and health are very important. So is getting the most out of your grow. Don’t risk using sunglasses or cheap grow room glasses!\nQ: Where are Method Seven glasses manufactured?\nA: SANTA CRUZ INSPIRATION, GERMAN & ITALIAN CRAFTSMANSHIP. Our Rendition Perfect Color HPS mineral glass lens is made with a patent pending formulation, melted in six ton batches in a century old German factory, and ground, polished, cut and hardened in Italy.\nOur synthetic lenses are made by Carl Zeiss - world leaders in optics for over 100 years. They are asymmetrically tuned bringing distortion free focus and clarity to your eyes.\nOur frames are made in Italy. Final assembly of glasses into frames is also done in Italy. Packaging of glasses, carry case, wiping cloth, and boxes is done in Italy or in Santa Cruz, California.\nQ: What's the story with Rendition \"Perfect Color\" HPS lenses?\nA: COLOR BALANCING. We developed a proprietary blend of rare-earth elements that are bonded within molten glass at the molecular level. The result is canceling of a precise nanometer of light energy from the High Pressure Sodium spectrum. The lenses also selectively filter the remaining light spectrum to create the white balanced light your eyes need for maximum performance and comfort. The specific density of the glass lens also absorbs a substantial amount of infrared radiation resulting in additional comfort. Rendition Perfect Color HPS lenses provide the ultimate in color balancing, optical clarity, and protection to allow you the ultimate in comfort, visual acuity, and productivity while working with your grow.\nUp your game as you as monitor plant health and correctly perceive the color of your plant leaves and the things that threaten your grow - pests, disease, rot, mildews, and mineral deficiencies and excesses - that are often hidden by the harsh lighting environment. The Rendition lens reveals color precisely enough to use a PH test strip while in the grow room. All without turning your HPS lighting off or walking your plants, or your testing equipment into daylight. (If you are the kind of person who wants to know the details, you can read about the amazing science behind in links further down this page).\nOPTICAL CLARITY. Rendition Perfect Color HPS lenses are made from mineral glass which is melted in six ton batches in a century old German factory, and ground, polished, cut and hardened in Italy. They provide the ultimate in distortion free focus and clarity to your eyes.\nPROTECTION. Like all Method Seven optics, Rendition lenses provide 100% protection against not only UVA and UVB radiation, but also from UVC radiation lacking in normal daylight but prevalent under grow-room lighting. Rendition lenses are also the only grow lenses in the world that eliminate virtually all of the high frequency strobe effect inherent under HPS grow lights due to the way ballast and HPS bulb product light (the strobe effect is not immediately obvious to the conscious mind, but is very stressful to your eyes and impedes ability to easily focus on shapes and detect movement, and is a huge contributor to eye fatigue when working for prolonged periods in and HPS lighted grow room).\nExperience \"Rendition Perfect Color\" under HPS lighting - and work unconstrained in spite of that environment.\nQ: Why does Method Seven offer so many options?\nA: WE PROVIDE AN EXTENDED ASSORTMENT OF GLASSES BECAUSE... gardeners employ a variety of lighting types and combinations of lights to work their craft! Each type of light produces its own unique spectrum that is very different from the light levels and balanced spectrum of daytime sunlight which works best for our eyes. We make optical solutions for each of the most common of these lighting spectrums. Our glasses allow you to regain the comfort and high quality visual results you would experience in an outdoor garden environment. We also offer clip-ons for people who need prescriptions\"\nCOLOR, CLARITY, PROTECTION\nAll Method Seven glasses provide outstanding Clarity, and 100% UVA/UVB/UVC protection.\nOptics & Spectrum Info\nNATURAL SUNLIGHT AND WHITE BALANCED LIGHT. Sunlight is composed of the full, balanced distribution of light across the spectrum of visible wavelengths from 390 to 750 nm - a magical distribution of reds, yellows, greens and blues - all the colors of the rainbow. Sunlight's even distribution of all wavelengths of light across the full spectrum produces naturally “balanced white light” (BWL). Our eyes and brain need this color balanced light to function optimally without stress, discomfort, fatigue and sometimes permanent damage. This broad spectrum of light allows us to see natural looking colors and to also easily recognize shapes and motion. The sunlight spectrum also includes invisible and dangerous UV (ultra violet) and invisible and fatiguing IR (infra red) wavelengths.\nGROW ROOM LIGHTS\nEach grow-room light source (HPS, MH, LED) provides a VERY imbalanced spectrum of light, with a vast majority of the light occurring in just a few wavelengths of the spectrum typical of the chemistry and physics of that light source. Plants still grow well under these imbalanced light sources and aren't negatively affected, but human eyes and brains are.\nCOLOR, CLARITY, PROTECTION. ONLY METHOD SEVEN DELIVERS ALL THREE.\nThe greater productivity, comfort, and safety, the grower needs grow glasses that filter the harsh, unbalanced light of the grow room to create BWL (balanced white light). Each lighting spectrum (HPS, LED, MH) needs its own exacting solution. Method Seven Optics have formulations to filter out the specific wavelength spikes in the spectrum of each of these common grow lightings sources, providing the wearer white balanced light within the very unbalanced environment.The lenses must do this without reducing the optical clarity of the naked eye, or the reduced optical clarity from the lenses create a different set of physiological issues for the wearer. For short term comfort and long term health, lenses must protect the eye from 100% of the harmful UVA/UVB/UVC radiation of the grow room and reduce IR exposure to the eye.\nHPS lighting creates and radiates a huge amount of light. The frequent electrical excitation and decay of electrons in the sodium atoms generates the vast majority of total light output at a specific \"yellow\" wavelength around 590 nanometers. This wavelength is a very suitable energy source for plants to use for photosynthesis and growth, and light and ballast costs have traditionally been low. HPS lights use considerable electricity and produce considerable excess heat. The yellow spike of HPS lights is especially challenging to our eyes due to the poor spectrum, the exceeding poor yellow / blue ratio of the light that impacts the functioning of the rods and cones in our eyes, and the high frequency \"strobe effect\" from the ballasts (more details elsewhere on this page).\nUnlike most HPS lamps, the light spectrum produced by commercially available LED equipment varies between manufacturers and is dependent on the combinations of diode, amperage, magnification and a host of design considerations. The best LED spectrums for optimum plant growth typically produce a distinctive magenta color appearance.\nMH bulbs produce light that's strongest at the blue end of the spectrum resulting in a stark, bright white light. MH bulbs tend to be very bright, and glasses need to appropriately attenuate (decrease) total light to the eye in addition to providing color balanced light and 100% UVA/UVB/UVC protection.\nOur eyes evolved to function best under daytime sunlight with its full, balanced distribution of light across the full spectrum of red, yellow, green and blue wavelengths from 390 to 750 nm. Our eyes and brain need this color balanced light to function optimally without stress, discomfort, fatigue and sometimes permanent damage. This broad spectrum of light allows us to see natural looking colors and to also easily recognize shapes and motion.\n\"BALANCED WHITE LIGHT\"\nWhen reproducing the full sunlight spectrum artificially, the spectrum is called \"balanced white light\" (BWL). Each type of grow light (HPS, LED, MH) produces a spectrum very far from white balanced light. Photographers learned long ago that the color of light on an object changed the way a camera/film registers the color of the object, just as the color of light on an object changes the way our eyes perceive the color of that object . With the advent of modern light metering and photo processing software, photos can be white balanced after the fact. Photographers have created a process where they photograph a specific color of white paper at the same time they take a photograph, and later adjust the finished photographs (using photo software like Photoshop) until that white paper looks the correct shade of white again. This allows the other objects photographed to appear the correct color too.\nWhen looking at something under a spectrum other than balanced white light, your eyes work hard and partially color correct what they see. The more unbalanced the spectrum, the harder your eyes work and the less they can successfully compensate. Look at a sheet of white paper under grow lights, and you will notice that it doesn't look even close to white, instead you see the unbalanced color spikes of the grow room light source. Your eyes can't come close to compensating for the extreme lighting environment of indoor grow lights. Look at that same piece of paper with Method Seven glasses, and see the exact shade of white you see outdoors under natural sunlight! For more technical information about color balancing, eye physiology and specific Method Seven products, see the \"Color Perception & M7 Color Balancing\" section lower on this page.\nCOLOR, CLARITY, PROTECTION\nLight balancing is only one of the challenges for optical products for the indoor grower. Only Method Seven delivers products for different light source spectrums with state of the art color balancing, optical clarity, and 100% UVA/UVB/UVC protection.\nMethod Seven Rendition Perfect Color HPS lenses are made from high grade mineral glass. The elements added to the glass are atomically bonded into the crystalline structure. There are no emulsions or dyes to interfere with optical clarity. Method Seven's synthetic lenses likewise provide exceptional optical clarity. These lenses were developed in partnership with Carl Zeiss, a 100 year old Italian lens manufacturer well known for the optical quality of their lenses.\nThe best glass lens sunglasses on the market match the optical clarity of the Rendition mineral glass lenses (but don't color balance for indoor growing, and may not protect from UVC radiation). Less expensive sunglasses and cheap grow glasses have poor optical quality and contribute to eye stress and fatigue.\nEye Protection & safety standards:\nPROTECT YOUR EYES! Find yourself constantly squinting in the grow room? Over time constant exposure to high levels of UV and infrared radiation leads to irreparable eye damage. Loss of color perception, cataracts, and the destruction of your night vision are possible. All of our lenses blocks all harmful invisible wavelengths (UVA, UVB, UVC and Infrared). Your plants require these invisible wavelengths to flourish. Your eyes certainly don’t.\nBut that's not the whole story. Cones and rods within your eyes control the eyes ability to focus and function best at light wavelengths very different from the indoor grow environment. New science proves that the eyes extra effort to focus and correct for excess yellow from HPS lights causes a host of eye strain and health problems. Rendition lenses balance the light in a way that allows your eyes, brain, and body to function correctly again. This results in drastically less mental strain and fatigue. Less fatigue equals better decision-making and a pleasant experience in your grow room.\nMethod Seven glasses meet or exceed international safety tests for optical quality, clarity, breakage and UV protection.\nHPS lighting story:\nHigh Pressure Sodium (HPS) lighting has long offered a cost effective solution for some industrial applications such as the lighting of warehouses and for Grow Room lighting. HPS lighting also creates visual problems for people working within its environment. The details of these visual problems are discussed in our eye physiology section. But in general, HPS lighting causes significant decrease in color perception and ability to focus on shapes and motion. The \"strobe\" light effect caused by the high frequency, cyclical variation in power from the HPS ballast to the bulb causes a similar high frequency variation in light intensity which also has negative impact on our eye's ability to function comfortably and effectively under these lights.\nHPS lighting creates and radiates a huge amount of light. The frequent electrical excitation and decay of electrons in the sodium atoms generates the vast majority of total light output at a specific \"yellow\" wavelength around 590 nanometers. This wavelength is a very suitable energy source for plants to use for photosynthesis and growth.\nThis same concentration of yellow light makes it difficult for an individual to see properly. Humans see best in natural sunlight, or in “Balanced White Light” (BWL). BWL light, like natural sunlight, covers the entire visible spectrum of 390 to 750 nm. This broad spectrum of light allows us to see natural looking colors and to also easily recognize shapes and motion. Under HPS lighting our eyes are saturated with yellow light and we are unable to recognize any other colors.\nHuman eyes also require a certain ratio of blue light (around 505 nm) to yellow light (around 555 nm) to be able to recognize shapes and to detect motion. HPS lights provide some of this blue light, but in far to low a ratio compared to the prevalent yellows, and this profoundly degrades our ability to focus. This point will be explained further in the discussion of “rods” and “cones.”\nCOLOR, CLARITY, PROTECTION. METHOD SEVEN DELIVERS!\nOthers can try to copy but fall short: Method Seven developed the world's first HPS grow glasses and offers HPS glasses with patent pending Rendition Perfect Color HPS technology with German mineral glass or high optical quality synthetic lenses developed with Carl Zeiss (a world leader in high quality optical lens production). Only Method Seven delivers finished glasses of incomparable style and quality and meets your needs for Color, Clarity, Protection!\nLED lighting story:\nLED (light emitting diodes) grow lights are a relative newcomer as source for indoor horticultural purposes. They are the up-and-coming state of the art. Initial light / fixture costs tend to be higher than HPS and MH, but ... these costs can often be recouped quickly due to much lower energy consumption per lumen, less excess heat in the grow room, and the very long lift of bulbs. Unlike most HPS and MH lamps, the light spectrum produced by commercially available LED equipment varies between manufacturers and is dependent on the combinations of diode, amperage, magnification and a host of design considerations. The best LED spectrums for optimum plant growth typically produce a distinctive magenta color appearance. Method Seven chose Black Dog LED, considered an LED market leader, as the benchmark spectrum for design of the LED specific lens formulation.\nThe Method Seven LED Optics will balance color optimally under Black Dog LED lights, but has been tested with a number of other commercial LED lights and functions exceptionally well with all other brands tested to date. Color correction might vary slightly with alternative equipment (imperceptible in most cases) but in all cases Method Seven Optics will protect against all UV damaging ray regardless of LED brand.\nMETHOD SEVEN OFFERS THE WORLD'S FIRST AND ONLY LED BALANCING GROW LIGHTS.\nColor, Clarity, Protection. Method Seven delivers!\nMetal Halide lighting story:\nHistorically, in contrast to HPS lighting, Metal Halide lamps have had a higher initial cost but are typically slightly more efficient, produce less (but still considerable) heat, and have a broader, more diverse spectrum of light for plants. MH bulbs produce light that's strongest at the blue end of the spectrum resulting in a stark, bright white light. MH lighting may prove less difficult for the human eye than HPS, but still causes considerable eye strain and great risk from UV radiation. MH bulbs tend to be very bright, and glasses need to appropriately attenuate (decrease) total light to the eye in addition to providing color balanced light and 100% UVA/UVB/UVC protection.\nMETHOD SEVEN OFFERS THE WORLD'S FIRST AND ONLY MH BALANCING GROW LIGHTS.\nColor, Clarity, Protection. Method Seven delivers!\n|Dimensional/Billable Weight (lbs)||2|\n|Model||EVOLUTION SUN POLARIZED|\n|Vendor Item #||FGV211|\n|Manufacturer's Suggested Retail Price||$120.00|","domain":"optical_engineering"}
{"url":"https://backwoods.co.nz/blog/Choosing-and-Using-Binoculars-for-Outdoor-Adventures","date":"2024-04-22T22:31:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818374.84/warc/CC-MAIN-20240422211055-20240423001055-00726.warc.gz","language_score":0.9271407723426819,"token_count":981,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__149532140","lang":"en","text":"For those who seek adventure, exploration, and discovery, the great outdoors beckons with its vast and magnificent beauty. If you take pleasure in observing birds, trekking, or spending time in the wilderness, then there is no experience as delightful as engrossing oneself in the splendor of the natural world. One tool that can enhance your experience and bring you even closer to nature is a good pair of binoculars.\nIt is crucial to have a good understanding of how binoculars actually function. Essentially, binoculars utilize a combination of lenses and prisms in order to enhance the image and bring it nearer to your eyes. The most common types of binoculars are porro prism and roof prism binoculars. Porro prism binoculars have a classic design, with the objective lenses set further apart than the eyepieces, while roof prism binoculars have a more streamlined design with the lenses in a straight line.\nTwo numbers are typically used to describe binoculars - magnification and objective lens size. Magnification refers to how many times closer the image appears through the binoculars compared to what a person would see with the naked eye. Objective lens size refers to the diameter of the larger lenses on the binoculars, which means the larger the size, the more light can enter and the brighter the image will appear.\nAnother important consideration when choosing binoculars is field of view, which is the width of the area one can see through the binoculars. Eye relief is also important, as it refers to how far away your eyes can be from the eyepieces while still seeing the entire image.\nChoosing Binoculars for Specific Outdoor Activities\nBird watching: When it comes to bird watching, you'll want to choose binoculars with a magnification of 8x or 10x and a wide field of view to make it easier to track fast-moving birds. Look for binoculars with a close focus distance of 6-10 feet, as this will allow you to see details on nearby birds.\nHiking and camping: For hiking and camping, you'll want binoculars that are lightweight and durable, with good water resistance to protect them from the elements. A magnification of 8x is usually sufficient for these activities, and a wide field of view is also helpful for spotting wildlife and taking in panoramic views.\nAstronomy: Binoculars can also be a great tool for stargazing, and there are specific features to look for in binoculars for this purpose. Aperture size is the most important consideration, as it determines how much light the binoculars can gather and how bright the image will appear. Look for binoculars with an aperture size of at least 50mm. Magnification is less important for astronomy, so a lower magnification (around 7x) is usually sufficient. Finally, tripod compatibility is important, as it will help keep the binoculars steady and reduce hand shake.\nTips for Using Binoculars Outdoors\nOnce you've chosen the right pair of binoculars for your outdoor activity, it's important to know how to use them properly to get the most out of your experience. Here are some tips for using binoculars outdoors:\nProper focusing techniques for different scenarios: Practice adjusting the focus on your binoculars for different distances and lighting conditions. Learn to use the focus wheel to fine-tune the focus, and adjust the diopter if necessary.\nHow to hold binoculars steady: It's important to hold binoculars steady to prevent shaking and ensure a clear image. Use both hands to hold the binoculars, and brace your arms against your body or a solid object like a tree trunk or a rock. You can also use a tripod or monopod for additional stability.\nHow to adjust for eyeglasses or contact lenses: If you wear glasses or contact lenses, you'll need to adjust the eye relief on your binoculars to get the best view. Most binoculars have eyecups that can be folded down for eyeglass wearers or left up for those without glasses. If you wear contact lenses, keep a spare pair with you in case you need to remove them and use the binoculars.\nChoosing the perfect pair of binoculars for your outdoor activities can greatly enhance your experience and help you connect more deeply with nature. By understanding the different types of binoculars available and the features that are important for your specific activities, you can choose the right pair for your needs and make the most of your time outdoors. Remember to practice proper focusing techniques, hold your binoculars steady, and adjust for eyeglasses or contact lenses to get the best possible view. Happy exploring!","domain":"optical_engineering"}
{"url":"https://bluewallfilm.com/canon-ef-75-300mm-canons-pioneering-camera-lens/","date":"2023-09-26T12:30:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510208.72/warc/CC-MAIN-20230926111439-20230926141439-00688.warc.gz","language_score":0.977484941482544,"token_count":478,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__10634460","lang":"en","text":"Today, since a lot of the people have turned to digital photography, they are using more of the available digital photography guides in the market. And according to the most effective photography guides, the Canon EF 75-300 mm is the best lens photographers can possibly have. The Canon EF 75-300 mm is actually the pioneering camera lens that is produced by Canon. It is the most saleable camera lens because of its main feature which is image stabilization. It has other top notch features, but image stabilization is its best and the one that distinguishes it from the rest.\nWith image stabilization, the photographers are allowed sigma cheap lenses to handhold two f-stops much more quickly, as compared to other lenses that do not have this particular feature. This is a very good advantage for Canon EF 75-300 users since it is very costly to have to purchase a new lens that has a two-stop quick aperture. This particular lens is also wide open on all the necessary focal lengths and soft. Just because it is soft, it does not necessarily mean that it is not sharp because it can actually zoom from 70 right up to 300 mm. The corners are the softest parts, since they are accounted to 70 mm. The lens, at its front, can also be rotated as it moves out if the photographer is trying to focus on an object that is very close.\nToday, this particular lens is being widely used by professional photographers all over the world as it is perfect for shooting different ranges of photography, such as nature, people, pets, and even portraits. Although it may seem like such an effective digital photography item, the Canon EF 75-300 mm is actually one of the most affordable cameras to be ever released by Canon. In fact, experts in photography consider it as one of the most economical prices. Simply put, this particular lens is definitely a great bargain.\nThe part of the lens that is responsible for making the auto-focus feature quicker and quieter is the USM. It has a developed zoom system that allows zooming to be a much smoother venture. It contributes to a wonderful optical structure of thirteen elements, as it focuses fabulously and clearly even with close-up images, from nearly two meters up to nearly five feet only. Many photographers today are using this particular lens for their works of art since the results they have acquired look absolutely beautiful.","domain":"optical_engineering"}
{"url":"https://www.charlotteguthery.com/about","date":"2019-10-20T11:10:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986707990.49/warc/CC-MAIN-20191020105426-20191020132926-00518.warc.gz","language_score":0.8595296740531921,"token_count":181,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__71849774","lang":"en","text":"Charlotte Elena Guthery\nCharlotte Elena Guthery is a PhD graduate student in the Adaptive Optics Lab at the College of Optical Sciences at the University of Arizona. She graduated from Rochester Institute of Technology with an undergraduate degree in Photographic Sciences. Previously a published photographer, Charlotte started work in astronomical research in 2015. Since beginning her PhD in 2017, Charlotte’s research focuses on telescope engineering, adaptive optics, and optical fabrication.\nTheory and Design of a Hybrid Wave-front Sensor for Adaptive Optics, OSA, 2019\nAnalysis and Design of the IONA (Innovative Optics for a Novel Adaptive) Telescope, OSA, 2019\nTheory and Design of a Hybrid Wave-front Sensor for Adaptive Optics, AO4ELT6, 2019\nTelescope Operator, Kuiper 61” Telescope, AZ","domain":"optical_engineering"}
{"url":"https://octavacapital.ua/en/compass-engineering-solutions-available-for-military-purposes-as-well/","date":"2023-11-28T22:37:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100016.39/warc/CC-MAIN-20231128214805-20231129004805-00047.warc.gz","language_score":0.8816679120063782,"token_count":272,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__57641447","lang":"en","text":"Thermal imaging IP cameras are now in high demand in combat zones. They ensure timely deterrence of penetration by sabotage and reconnaissance forces and enemy equipment. Surveillance is carried out remotely and invisibly — the operator’s data is transmitted over the network, i.e. without risk to human life. Combining video analytics to classify objects by type (person/vehicle) and high resolution, thermal imaging cameras work proactively — significantly improving safety over long distances, in places with poor visibility, including in the dark or in smoke. Contrasting images are especially useful in densely built-up areas, where it is extremely difficult to track the movement of enemy forces.\nTherefore, thermal imaging cameras have proven to be useful for covering the city perimeter, as well as critical infrastructure facilities, such as thermal power plants, nuclear power plants, military facilities, etc.\nThe Compass Engineering team is ready to provide a project estimate and minimum delivery time.\nVitalii Rozdobutko (V.Rozdobutko@compass-engineering.com.ua),\nAnton Padii (A.Padiy@compass-engineering.com.ua),\nDenys Sliusarchyk (D.Slyusarchik@compass-engineering.com.ua) or\nKeep on working to bring victory closer!","domain":"optical_engineering"}
{"url":"https://exemplore.com/news/sunglasses-ufo","date":"2022-08-09T15:00:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570977.50/warc/CC-MAIN-20220809124724-20220809154724-00362.warc.gz","language_score":0.9608612060546875,"token_count":355,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__22833057","lang":"en","text":"There are many benefits to wearing polarized sunglasses. Designed to reduce glare created by the sun on the road or the surface of the sea. This is because most glare occurs when light is reflected off surfaces in all directions. Polarized lenses filter out horizontal lights while letting vertical light through, with the result of reducing glare. Fishermen report that it makes the ocean more transparent and they can even see fish beneath the surface more easily while wearing them.\nBut this man claims that it helps you see more than hidden objects in the sea. With the help of polarized sunglasses, he’s seeing whatever is hidden… in the sky.\nWATCH VIDEO HERE\nIn the video, a man shows a clear blue sky in Iowa, then holds ups pair of polarized fishing glasses over the scene. When the lenses drop over the screen, you can see tiny glowing shapes floating and zipping around in the sky.\nWhat are they? No one is quite sure. Some viewers insist that what he’s looking at are merely scratches in the lenses, but that explanation does not quite wash, as the objects move independently from each other.\nRead More From Exemplore\nOthers report seeing the same kinds of things when they look through their own polarized lenses. “We were so in shock at what we were seeing and then we knew no one would ever believe us. We Google searched and haven't found anything that was exactly what we saw, but this was it!”\nAnother commenter says they’ve seen similar things in the skies of Alabama.\nBut some are still skeptical. If UFOs have such amazing cloaking technology, how can they be beaten by a simple pair of sunglasses? Well, maybe they just don’t expect anyone to look.","domain":"optical_engineering"}
{"url":"https://www.mikevisiontech.com/product/easy-install-3d-holographic-mesh-projection-screen-hologram-gauze-projection-screen-for-exhibition-and-stage/5","date":"2024-04-15T06:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00762.warc.gz","language_score":0.8345397114753723,"token_count":321,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__48724033","lang":"en","text":"|White, Grey, Dark Grey\nHolographic mesh Screen projection is a kind of display form with the aid of projection, spotlight and so on. It's still inseparable from the solid imaging medium, a thin screen like light yarn,it is made of thin cotton cloth or chemical fiber materials with mesh holes. It can be extremely fine wire mesh, steel wire mesh, or gauze that is not easy to be seen by the naked eye,it can provide a good imaging visual effect reflection. In large-scale display, it also expands the sense of space level of the stage, enhances the interaction between actors and videos in the performance, and make the performance more attractive.\nHolographic Screen projection expands the space level of stage.The screen is light and transparent, and can be hung in all positions of the stage. At the same time, the tilt angle of the screen can be determined with the projection angle, which can make the screen more perfect and form a good imaging visual effect.","domain":"optical_engineering"}
{"url":"https://www.complaintsboard.com/complaints/bauch-lomb-hardware-ben-vision-cataract-surgery-c742496.html","date":"2019-10-23T05:25:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987829458.93/warc/CC-MAIN-20191023043257-20191023070757-00021.warc.gz","language_score":0.9814852476119995,"token_count":235,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__126257202","lang":"en","text":"Bauch & Lomb & Hardware Ben Vision — cataract surgery\nI had cataract surgery in 2014 in both eyes. In my first visit to Dr. I was told if I would like to have NGLs lens which is advance technology and I will have significant of changes in my vision after the cataract surgery. Meaning I will have better vision with NGLs lens than regular lens. My insurance company will not cover the charges and it will cost me $2500.00 for each eye.See the Top 10 Worst Companies in Old Bridge, NJ\nI agree to pay for that thinking, I will have better vision. It’s been less than 60 days for my Right eye surgery as of today. The clear vision is less than three feet. It was Dr. who decided CRYSTAL LENS for implant. I guess he did it. Not sure because I never show the Lens. But I know one thing that with Dr. S visit and lens cost I have paid now more than $5500.00 I would like to know if there is any class Action law suit against the false marketing for the Doctors and company?","domain":"optical_engineering"}
{"url":"https://www.marketresearch.com/iData-Research-Inc-v3689/Optical-Biometry-MedCore-10771337/","date":"2018-05-25T21:51:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867217.1/warc/CC-MAIN-20180525200131-20180525220131-00009.warc.gz","language_score":0.9253150820732117,"token_count":371,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__94813175","lang":"en","text":"US Market Report for Optical Biometry 2017 - MedCore\nGeneral Report Contents\nMarket Analyses include: Unit Sales, ASPs, Market Value & Growth Trends\nMarket Drivers & Limiters for each chapter segment\nCompetitive Analysis for each chapter segment\nSection on recent mergers & acquisitions\nThe optical biometry device market is expected to grow over the forecast period due to sustained expansion of the number of units sold. Optical biometry devices are newer than ultrasound A-scans and pachymeters and are used in the same settings as these more traditional devices. In cataract surgery offices, optical biometry tends to be used alongside ultrasound equipment. The relatively new technology has not replaced the market for ultrasound devices because there remains a subset of cases for which ultrasound is a more effective measurement technique. As such, the market for optical biometry devices is driven more by the expansion of new and existing cataract surgery practices and less by the replacement of ultrasound devices with the more accurate alternative\nWith growth in the number of cataract procedures resulting from the aging population, practices are expected to continue to expand their capacity over the forecast period. In addition, new offices are expected to open at a rate similar to the growth of the patient pool. Prices, however, have established consistent values and will only see slight erosion throughout the forecast due to competition.\nOptical biometers are partial coherence interferometry devices designed to generate a range of biometry measurements as well as to assist with intraocular lens (IOL) calculations. Optical biometers are capable of taking multiple measurements including axial length, anterior chamber depth, corneal thickness and lens thickness. All measurements are taken at a single optometry or ophthalmology station. Contact with the cornea is not required for the functioning of optical biometers, which improves measurement accuracy.","domain":"optical_engineering"}
{"url":"https://lonceyi.netlify.app/6939/45912.html","date":"2023-03-28T02:24:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948756.99/warc/CC-MAIN-20230328011555-20230328041555-00438.warc.gz","language_score":0.8838382959365845,"token_count":2333,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__172741757","lang":"en","text":"Olof Penttinen - Chalmers Research\nLaser Doppler flowmetry during hyperaemic reactions in the\nThe probes come in different sizes for different applications and are suitable for acute and chronic procedures. The LDF module is easily combined with other BIOPAC physiological Laser doppler flowmeter may be used for preclinical diagnosis of renal and ophthalmic involvement in diabetics with types I and II conditions as a method to monitor the therapy efficacy in patients with apparent clinical signs of microangiopathies. Understand the influence of COVID-19 on the Laser Doppler Flowmeter Market with our analysts monitoring the situation across the globe. Overview of Laser Doppler Flowmeter Market Report 2021 The Laser Doppler Flowmeter report has been prepared based on the synthesis, analysis, and interpretation of information about the market collected from specialized sources. 1. This work was partially supported by the National Aeronautics and Space Administration under contract NAS8‐5285.\nGlobal Laser Doppler Flowmeter Market Size by Company, 2019- 2020 (quarterly data), (US$ Million) & (K Units) Key market players Major competitors identified in this market include Perimed, Biopac, ADInstruments, Siemens, Dantec Dynamics A / S, Moor Instruments, etc. Based on the Region: An instrument for measurement of tissue blood flow based on the laser Doppler principle was evaluated using a fluid model. A unique and linear relationship between flowmeter response and flux of red cells was demonstrated with red cell velocities and volume fractions within the normal physiological range of the microcirculatory network of the skin. laser-Doppler blood flow Samples in periodicals archive: At the Research Laboratories of Brown Engineering Company (later Teledyne Brown Engineering), this phenomenon was used in developing the first laser Doppler flowmeter . Laser Doppler flowmetry (LDF) is a non-invasive method for the continuous measurement of microvascular blood perfusion in a variety of tissue types. Blood perfusion (blood flow) is estimated by illuminating a tissue sample with single-frequency light and processing the frequency distribution of the backscattered light.\nSmoking status was verified by quantitative analysis of serum cotinine. Doppler shift flow meters Another method in ultrasonic flow metering is the use of the Doppler shift that results from the reflection of an ultrasonic beam off sonically reflective materials, such as solid particles or entrained air bubbles in a flowing fluid, or the turbulence of the fluid itself, if the liquid is clean. Laser Doppler flowmetry (LDF) is a noninvasive, continuous measure of tissue surface microcirculatory red blood cell (RBC) flux.\nFlujometria - Spanska - Engelska Översättning och exempel\nDescription. The Signature flow meter is designed for open channel flow monitoring applications.\nO. Lindahl Umeå University - Academia.edu\nUsing laser Doppler flowmetry to monitor free flaps both during surgery and for three days thereafter is thus a useful way of determining their viability. Laser doppler flowmetry (LDF) is a new non-invasive technique by which microcirculation changes in tissue can be studied. In recent papers, this technique has been used to measure microflow in standardized fluid models, in animals and in human clinical situations.\nAdvanced laser Doppler technology for non-contacting area velocity flow measurement . The sensor is compatible with both the Isco Signature flow meter for permanent discharge compliance monitoring, and the Model 2160 LaserFlow module for everything from portable surveys to permanent installations. The blood flow in 37 free flaps used for intraoral reconstruction was measured by laser Doppler flowmetry before and after elevation of the flap during surgery, immediately after the completion of reconstruction and on the 1st, 2nd and 3rd postoperative days (1 POD, 2 POD, 3 POD). Although the blood …\nLaser-Doppler Flowmetry was a 1990 FASEB Instrumentation Tutorial to present the new Laser-Doppler method for measuring blood flow in tissue.\nLav testamente online gratis\nIn this report, we aim to demonstrate Jun 12, 2020 By the method of laser Doppler flowmetry (LDF) individually-typological features of indicators of tissue blood flow in conventionally healthy Laser Doppler flowmetry has been used to measure capillary blood flow in many tissues. The principle of this method is to measure the Doppler shift, that is, the Laser doppler flowmetry (LDF) is a new non-invasive technique by which microcirculation changes in tissue can be studied. In recent papers, this technique has The authors studied 31 comatose head-injured patients to assess the clinical usefulness of laser Doppler flowmetry (LDF) in continuous autoregulation Jun 3, 2019 Objective: To assess the performance of laser Doppler flowmetry (LDF) in measuring blood perfusion from darkly-pigmented skin, i.e. skin with Abstract: A novel machine learning algorithm is introduced to estimate continuous blood pressure monitoring using Laser Doppler Flowmetry (LDF). Jan 10, 2001 Scanning laser Doppler flowmetry (SLDF) is a new technique that combines laser -Doppler flowmetry (LDF) with a scanning laser system to Apr 20, 2018 5-ALA fluorescence and laser Doppler flowmetry for guidance in a stereotactic brain tumor biopsy. Neda Haj-Hosseini, Johan C. O. Richter, Peter Evaluation of a laser Doppler flowmeter for measurement for tissue blood flow.\nThe LDF was developed in the late 1970s for measuring the blood flow Diagnosis. LOUIS H. BERMAN, GARY R.\n2019-04-08 · Applications of Laser Doppler Flowmetry 1. Cardiac Blood Flow During cardiac surgery, it is necessary to make sure there is a constant blood flow to the heart. 2. Retinal Blood Flow Retinal blood flow can still be imaged with visible light as the eye is transparent to the visible 3.\nSkola24 schema realgymnasiet göteborg\nThe technique is based on measuring Mar 4, 2011 Laser Doppler flowmetry (LDF) is a noninvasive, painless, electro optical technique, which allows the semi-quantitative recording of pulpal blood Aug 18, 2009 Laser Doppler flowmetry (LDF) is virtually the only non-invasive technique, except for other laser speckle based techniques, that enables Jul 1, 2008 The mean laser Doppler flowmetry flux was significantly higher at the edges of the tear in torn cuffs (43.1, 95% confidence interval (CI) 37.8 to Laser Doppler Flowmetry (LDF) is a non-invasive method to estimate the blood perfusion in the microcirculation. The method was first introduced over 30 years The LaserFlow remotely measures flow in open channels with non-contact Laser Doppler Velocity technology and non-contact Ultrasonic Level technology. Laser Doppler flowmetry (LDF) and transcutaneous carbon dioxide tension measurements (PtcCO2) were performed on fingers of healthy volunteers subjected The Doppler Effect Ultrasonic Flow meter use reflected ultrasonic sound to measure the fluid velocity. By measuring the frequency shift between the ultrasonic Apr 5, 2017 Selectable output signal format from analog, digital, and phase difference depending on the usage. Laser Doppler Surface Velocity Meter LV- Use these doppler flowmeters measure the flow of liquids in pipes from 1/4” and larger. Each flowmeter requires a transducer (32615-66 or -68) and a monitor In order to extend the life of a CO2 laser tube it is necessary to pump cooling water through it while it is operating.\n(2) AppNote #125: Pulse\ncompared to other methods, for example laser Doppler flowmetry (LDF). We have. evaluated laser speckle contrast imaging (LSCI) as a tool for tissue monitoring\nLarge Eddy Simulation and Laser Doppler Velocimetry on a vortex flow meter model. Olof Penttinen, Håkan Nilsson.\nBuss körkort pris\nsvenssons i lammhults\nniklas karlsson lundhags\nLASER DOPPLER FLOWMETER - Avhandlingar.se\nOverview of Laser Doppler Flowmeter Market Report 2021 The Laser Doppler Flowmeter report has been prepared based on the synthesis, analysis, and interpretation of information about the market collected from specialized sources. 1. This work was partially supported by the National Aeronautics and Space Administration under contract NAS8‐5285. Google Scholar; 2. Y. Yeh and H. Z. Cummins, Appl. Phys.\nLunds universitet marknadsföring psykologi\ntm tuning vw parts\nUsing Laser Doppler Imaging and Monitoring to Analyze\nVongsaven and Matthews  complained about the nonlinearity of the LDF signal when blood volume fractions in tissue are greater than 1 %, a consequence of the analysis by Bonner and Nossal , i.e. for a LDF signal that increases with 100 %, the assumption cannot be made that the blood flow has increased with 100 %. Laser Doppler flowmetry (LDF) is now commonly used in clinical research to monitor microvascular blood flow.\nLaser-Doppler Blood Flowmetry – A P Shepherd • P A Oeberg\nThe directional sensitivity and non-intrusiveness of LDA make it useful for applications with reversing flow, chemically reacting or high-temperature media, and rotating machinery, where physical sensors might be difficult or LaserFlow Non-contact Velocity Sensor . Advanced laser Doppler technology for non-contacting area velocity flow measurement The new ISCO LaserFlow Flowmeter is the first non contact open channel flow meter to use doppler velocity technology with integrated ultrasonic level sensor to measure flows in culverts, sewers and open channels. Laser Doppler flowmetry (LDF) is now commonly used in clinical research to monitor microvascular blood flow. However, the dependence of the LDF signal on the microvascular architecture is still unknown. That is why we propose a new laser Doppler flowmeter for depth dependent monitoring of skin microvascular perfusion. This new laser Doppler flowmeter combines for the first time, in a device Laser Doppler Flowmeter, supplied by Moor Instruments, used in various techniques.\nA unique and linear relationship between flowmeter response and flux of red cells was demonstrated with red cell velocities and volume fractions within the normal physiological range of the microcirculatory network of the skin. Laser Doppler Flowmeter, supplied by Moor Instruments, used in various techniques. Bioz Stars score: 92/100, based on 55 PubMed citations.","domain":"optical_engineering"}
{"url":"https://www.barringtoneyecare.com/our-services/visiooffice.html","date":"2021-09-28T22:42:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060908.47/warc/CC-MAIN-20210928214438-20210929004438-00534.warc.gz","language_score":0.8120567202568054,"token_count":349,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__79278530","lang":"en","text":"Our optical boutique is proud to introduce the Visioffice with Eyecode to our patients. This revolutionary state-of-the-art 3D measuring system takes into consideration a patient’s natural head and eye movement to create personalized lenses.\nThis is truly cutting edge technology. The Visioffice is a 3D measuring system that determines head tilt, along with exact eye location, shape and movement. And uniquely, it measures the two eyes individually, allowing for the most precise vision possible, no matter where you look through the lens.\nThis all-in-one system of full-range measurements allows you the benefit you have never had before: ultimate lens personalization.\n• Precise measurement for better lenses\n• Improved patient experience through education and frame selection\nCreates a unique solution for\nevery patient type\n• Recommend the best lens solution\nfor a given prescription or lifestyle\n• Present personalized demonstrations for every patient using interactive support tool\nDelivers the most precise, individualized vision\n• Record and perform up to 20\n• Measure the real 3D position of each eye’s unique eye rotation center (ERC) to create the most individualized lenses possible\nTakes specialized measurements for the full range of Varilux® lenses\n• Captures complete measurements for all DualOptix™ lenses including Varilux Physio Enhanced Fit™ and Varilux Ipseo IV™\nPersonalized vision provided by the exclusive products of the Visioffice System –Varilux Ipseo IV(TM), Varilux eyecode (TM), Varilux Physio Enhanced eycode(TM), and Essilor eyecode(TM) single vision lenses.","domain":"optical_engineering"}
{"url":"http://www.131022.live/en/index.php?c=article&a=detail&id=29","date":"2020-03-29T09:23:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370494064.21/warc/CC-MAIN-20200329074745-20200329104745-00165.warc.gz","language_score":0.9230758547782898,"token_count":453,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__173993104","lang":"en","text":"An advanced generation of parabolic trough mirrors makes solar thermal power plants even more efficient\nFlabeg FE GmbH, the international market leader and manufacturer of solar mirrors, has developed a new generation of parabolic trough mirrors. The new mirror combines higher strength with a superior precision of curvature and highest solar reflectivity.\n“Power plant operators benefit in more ways than one from our mirrors,” explains Franz Reimer, Head of Flabeg Research and Development Division, “The enhanced performance of the mirrors means that the effective solar area can be made smaller. The need for collectors and their components is reduced, making further cost savings possible.”\nThe relevant quality parameter for accuracy, the focus deviation (FDx) today is lower than 6 mm – an improvement of more than 1 mm compared to the already outstanding quality set by Flabeg mirrors in 2013. In combination with a solar reflectivity of more than 94.5% Flabeg again sets the benchmark for the CSP industry.\nAs a pioneer in the field of solar technology with a worldwide network, Flabeg produces flat and curved mirrors for all CSP technologies – Parabolic Trough, Dish Stirling, Power Tower and Linear Fresnel Systems, as well as customized mirrors for CPV applications. Thanks to the latest bending and coating technologies, Flabeg solar mirrors provide the highest degree of precision and reflectance .The extremely robust mirrors were installed in the first commercially operated power stations in the early 1980s. These mirrors are still in daily operation today, without any decline in performance or efficiency. Flabeg has been expanding its skills in the area of engineering services and project development support in parabolic trough technology. The company has developed a new collector design – the Ultimate Trough Collector. The design goal, a 20-25% higher cost efficiency compared to currently available technology is proven in a full demo-loop, integrated and operated in a commercially operating solar thermal plant in the US since 2013. Flabeg received the SolarPaces Technology Innovation Award for the Ultimate Trough in 2013.\nFLABEG FE GmbH is present as Silver Sponsor at the SolarPACES 2014 conference to be held in Beijing from September 16 to 19.","domain":"optical_engineering"}
{"url":"https://reviewofmm.com/coopervision-specialty-eyecare-debuts-digital-tool-to-fit-paragon-crt-lenses/","date":"2023-12-01T23:08:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100308.37/warc/CC-MAIN-20231201215122-20231202005122-00868.warc.gz","language_score":0.8998984098434448,"token_count":486,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__51352628","lang":"en","text":"February 24, 2021\nSAN RAMON, Calif. – Eye care professionals (ECPs) now have a new, digital format to guide the fitting process for first-time wearers of CRT and CRT Dual Axis contact lenses. CooperVision Specialty EyeCare is debuting its new Paragon CRT Software, which was designed to simplify the contact lens fitting process for ECPs .\nWith a few on-screen clicks, ECPs will be able to seamlessly change lens parameters, assess fluorescein patterns of different lenses on the same patient, and see simulated lens changes on a patients’ eye prior to ordering warranty exchanges. In addition, ECPs can upload patient topography maps and customize CRT and CRT Dual Axis lenses for each patient.\n“As trends and demands continue to change, it’s imperative for us to deepen our partnership with the specialty eye care community. Part of strengthening our clinical relationships and enhancing our support for the industry is to listen and evolve our portfolio and related tools,” said Dr. Juan Carlos Aragón, President, CooperVision Specialty EyeCare. “With the introduction of Paragon CRT Software, ECPs can more confidently fit our lenses on hard-to-fit patients, and ultimately, grow their practice.”\nParagon CRT is recommended for patients with <0.75D of corneal astigmatism based on keratometry values. CRT Dual Axis is designed for patients with >0.75D of corneal astigmatism based on keratometry values to enhance the cornea-to-fitting relationship. The innovative Paragon CRT Dual Axis lens is designed specifically for patients with greater than 0.75D of corneal astigmatism and is the go-to lens for many of the world’s top fitters.\nThe software is available to download at ecp.paragonvision.com/software.\nCooperVision Specialty EyeCare develops, manufacturers, and provides access to a portfolio of soft custom and rigid gas permeable lens designs, including orthokeratology and scleral lenses to address segments such as myopia management, irregular cornea management, and presbyopia management. The group’s brands include Blanchard, GP Specialists, Paragon, Procornea and Soflex.","domain":"optical_engineering"}
{"url":"http://cory2267mdmblog.blogdon.net/eye-surgical-treatment-4049166","date":"2018-07-17T11:05:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589710.17/warc/CC-MAIN-20180717105812-20180717125812-00064.warc.gz","language_score":0.9541700482368469,"token_count":1328,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__90498382","lang":"en","text":"Eye Surgical treatment\nEye Surgical treatment has become a mainstream approach of vision modification, as well as this short article will explain the benefits as well as drawbacks of 3 various techniques being provided to the clinical customer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis as well as is an eye surgical system which permanently fixes vision by eliminating a thin layer of the cornea. This procedure functions best on individuals with moderate to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) as well as astigmatism associated with nearsightedness, as well as who have thick corneas. It is one of the most well-known medical vision modification method.\nIndividuals with regular eye sight see objects plainly since images are brought into a proper centerpiece by the cornea and lens of the eye. Preferably, the cornea's curvature is evenly matched to its size in a typical eye. Individuals with astigmatism, nearsightedness or hyperopia have off-and-on formed corneas, so the objects seen are not concentrated correctly. LASIK adjustments corneal shape by exact elimination of corneal cells, and by doing so corrects the eyes' focusing power.\nThere are, nevertheless, risks to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this occurs, it is usually since the person had a pre-existing condition which must have averted the surgical procedure to begin with, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. People with large pupils are also poor candidates for LASIK. Dry eye syndrome will be worsened by this procedure.\nA few clients grumble that they completely see \"ghost\" photos, have obscured vision, lessened contrast as well as negative evening vision. When LASIK was first introduced, 5% of individuals had post-operative complaints; however, improvements in the procedure have actually created this rate to go down to much less compared to 1% if LASIK is done by skilled specialists and also individuals are correctly evaluated before surgical procedure. If problems do happen, they could commonly be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical procedure given that 1998. While there are a great deal of satisfied patients, there are however no long term researches concerning its results. Realize the limitations and the risks of LASIK eye surgical treatment before you sigh for the treatment.\nThough much less popular, these small implants can click here for more improve vision in clients with moderate to moderate nearsightedness without the threat of permanent eye damage blog integral in the cells elimination strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to think a flatter form. Though a little much less specific compared to LASIK, they are removeable and exchangeable, so if the person has an unanticipated over- or under-correction, the dental implant could be gotten rid of as well as one more of a different size inserted to get the wanted improvement. The implants lie beside the cornea, so the main visual area is entirely undamaged as well as undamaged, and the toughness of the cornea is undiminished, making it a far better choice for pilots as well as those who engage in call sporting activities where eye injury is an opportunity.\nIntacs are unsuitable for severe nearsightedness and also greater than minor astigmatism (1.00 diopters), as the cornea could just be stretched up until now. If the Intacs are removed, vision go back to its preoperative degree. Besides vision improvement, Intacs are likewise utilized to treat keratoconus.\nIntacs are FDA accepted as well as Ten Years researches have actually revealed no significant problems with Intacs and also very few individual grievances; nonetheless, since the treatment takes much more training compared to LASIK, there are fewer eye surgical procedure clinics using it. However, the Intacs web site offers a listing of experts in each state, as well a couple of in Canada, Europe and Mexico.\nSince many individuals do not want to take the chance of LASIK and Intacs can not aid those with severe vision issues, intraocular lens implants (IOL) are a brand-new option authorized by the FDA in 2004 to deal with moderate to serious nearsightedness. The Craftsmen lens, manufactured by Ophtec, resembles the sort of lens implant used to recover vision following cataract eye surgical treatment.\nThe brand-new IOL, called the Craftsmen, is intended for only clients that have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not replace the all-natural lens, however is put in front of it. The major problem discovered with the dental implant was the steady loss of endothelial cells in the corneas of individuals that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are vital in maintaining the cornea clear. A three-year research revealed a consistent consistent loss of endothelial cells of 1.8 percent a year. Now, no one can predict whether this loss will proceed at the exact same price forever, or perhaps its influence on corneal function.\nTo minimize long-lasting impacts of the gadget on the corneal endothelium, the FDA is needing that the brand-new lenses be classified to define that they need to just be dental implanted in patients whose corneal endothelial cells are thick enough to endure minor cell loss.\nMuch more major issues were few: retinal detachment (0.6%), cataract advancement (0.6%), as well as corneal swelling (0.4%). The FDA is needing Ophtec to carry out a five-year follow-up survey of its implant clients to better examine the post-surgical incidence of cataract advancement, retinal detachment as well as other ophthalmic diseases.\nThe Artisan lens is intended to be a permanent implant.Though it can be gotten rid of operatively, vision could not always go back to just what it was before obtaining the lens. Because it does not affect astigmatism, patients with this problem could still need glasses.","domain":"optical_engineering"}
{"url":"http://www.trexenterprises.com/Pages/homepage/radarindex.html","date":"2023-05-30T13:45:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645810.57/warc/CC-MAIN-20230530131531-20230530161531-00698.warc.gz","language_score":0.9193958044052124,"token_count":209,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__43566771","lang":"en","text":"|Large Aperture Radar\nTrex Enterprises' large aperture programs are based on Trex’s patented Rapid Optical Beam Steering (ROBS) technology. This cutting-edge technology combines sensitive target detection capabilities and rapid repositioning. We have successfully demonstrated this technology at White Sands Missile Range (WSMR) and currently at the Pacific Missile Range Facility (PMRF) on the Hawaiian Island of Kauai.\nSmall Aperture Laser Radar\nTrex Enterprises has developed several small aperture optical systems based on a rapidly steerable small light-weight mirror, which permits searching large areas while at the same time tracking with high accuracy.\nTrex Enterprises is developing sophisticated yet user-friendly millimeter-wave aviation systems to address the problem of landing helicopters and aircraft in fog, dust, and haze. Our cameras allow pilots to detect obstacles not visible with a naked eye in a flight path. Our objective is to provide a safer field-of-view for our military personnel and commercial pilots.","domain":"optical_engineering"}
{"url":"http://site.iugaza.edu.ps/hkhozondar/?page_id=980","date":"2023-06-10T00:59:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656869.87/warc/CC-MAIN-20230609233952-20230610023952-00768.warc.gz","language_score":0.7852803468704224,"token_count":420,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__255885605","lang":"en","text":"Department of Electrical Engineering\n- Project title: “Numerical and analytical analysis for nonlinear optical sensor” Funded by Arab Universities Union, 2004\n- Project title: “Very Fast Optical Switch using Er-doped Fiber” Funded by Research and scientific deanery at Islamic University of Gaza, 2008\n- Project title: “Full Treatment of Polarization Rotation and Shear Stress effects on Fiber Bragg Grating Sensor” Funded by Research and scientific deanery at Islamic University of Gaza, 2010\n- Project title: “Communicating respect: teaching business etiquette and intercultural communication at high education and VET institution in the Euro-Med Region” in collaboration with the International University College, Dobrich, Bugalris.Funded by Anna Lindh foundation, 2010\n- Project title: “Schub- und Hauptdehnungsrekonstruktion mit eingebetteten Faser-Bragg-Gittern” in collaboration with Technical University Munich, Munich, Germany. Funded by DFG, 2010.\n- Project title: “ Lifelong Learning in Palestine ” in collaboration with Glasgow University , Birzeit univeristy, Bethlahem University, Malta university, and Jersulem University. Funded by TEMPUS 2011.\n- Project title:\" Modeling of optical sensor using Liquid crystal tunable MTMs\", in collaboration with Université Paris-Sud 11, France. Funded by Maqdisi project, 2011.\n- Project title:“ Developing maker?movement?inspired training courses on renewable energy sources in the Gaza Strip ? Palestine“, in collaboration with University of Natural Resources and Life Science, Vein, Austria, funded by APPEAR, 2017.\n- Project title: ” Condition monitoring systems for wind energy converters using rotor-blade load measurement data”, in collaboration with University of Munich, Germany, funded by German-Palestine collaboration friendship agency.","domain":"optical_engineering"}
{"url":"https://www.chargerforums.com/threads/dodge-charger-reverse-backup-led-bulbs-plug-and-play-install-see-comparison-photos.276489/?u=231118","date":"2023-05-28T12:39:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643784.62/warc/CC-MAIN-20230528114832-20230528144832-00036.warc.gz","language_score":0.9128208756446838,"token_count":1186,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__96550883","lang":"en","text":"Dodge Charger Reverse/Backup Light LED\nAt Diode Dynamics, we carry a full line of LED bulbs, including three different levels of brightness for your Dodge Charger's reverse light or backup light bulb (921 / 3156). We carry the brightest, highest-quality bulbs on the market, which we have designed in St. Louis, Missouri. Your order will ship same day, and we're here if you need us for support and service. Every bulb carries with it a three-year limited warranty\nYour purchase includes two LED bulbs for perfect fitment in your Dodge Charger model year selection\n921 Bulb Size:\nFull 360 degree illumination with 36 High-Power Samsung LEDs. Aluminum base for optimum heatsinking, and non-polar design for easy installation.\nEach of the four sides of this bulb contains two 5W-rated chips, and the top is fitted with two more under a projector lens. Housed in an aluminum casing with textured finish for maximum heatsinking properties.\n3156 Bulb Size:\nFour side-firing 1.5W-rated Osram LED chips, and one 5W-rated LED chip on top, which is projected by a lens for maximum effective brightness. The bulb is housed in a machined aluminum casing, which provides superior heat diffusion for long life.\nEach of the four sides of this bulb contains three 5W-rated chips, and the top is fitted with four more under a projector lens. This is the brightest self-contained automotive LED bulb on the market, and is housed in an aluminum casing with a textured finish for maximum heatsinking properties.\n2006-2010 Dodge Charger Model Years (921) use a quality inject-molded 921 terminal, with a sturdy base connector and proper pin alignment, designed for exact replacement of your factory 921 bulb. You will not need resistors for backup lights. Just replace the factory bulb.\n2011-2014 Dodge Charger Model Years (3156) use a quality inject-molded 3156 terminal, with a locking base connector and proper pin alignment, designed for exact replacement of your factory 3156 bulb.\nIncluded in your order is TWO BULBS\nThese LEDs illuminate in a crisp, cool, bright, white hue for maximum light output.\nDiode Dynamics offers several brightness options so you can choose what fits you best. These options are listed by the design and the lumen output of each bulb:\n921 Bulb Size:\n(210 lumens) Slightly higher brightness than OEM bulbs.\n(410 lumens) Much brighter than OEM bulbs.\n3156 Bulb Size:\n(310 lumens) Slightly higher brightness than OEM bulbs.\n(510 lumens) Much brighter than OEM bulbs. These are bright!\nLumens. BUYER BEWARE!\nMost sellers just provide \"calculated\" lumen numbers, based on the maximum potential brightness of the LED chips on the bulb. For example, if a bulb has five 10-lumen chips, they will rate it at 50 lumens. However, this is not accurate, as the design of an LED bulb does not get rid of heat fast enough to run the LEDs at maximum.\nThese \"calculated\" lumen ratings are much, much higher than the true, measured light output, so it will look like competitors' bulbs are brighter than ours. This is because Diode Dynamics does not provide inflated \"calculated\" numbers; we believe it is misleading. We test the actual brightness of the bulbs in our lab, to provide real lumen output measurements. Our measurements are accurate, but they are usually much lower than the misleading \"calculated\" figures.\nDiode Dynamics uses only the highest quality LED chips in the production of its bulbs. This means only brand-name suppliers such as Epistar, Cree, Osram, and Samsung.\nWhile Diode Dynamics bulbs may look the same as others on the market, most copycat bulbs use economy-grade LED chips in order to reduce costs. This greatly reduces the reliability and overall brightness of the bulb when you compare it to Diode Dynamics.\nAlthough LED technology allows for extremely long bulb life, the market is flooded with cheap LED bulbs that fail prematurely due to inferior construction. The worst enemy of LEDs is excessive heat, and when bulbs are not designed properly, they do not disperse heat as well, leading to premature failure.\nOff-brand, cheap bulbs exhibit poor solder uniformity, high levels of flux in the solder, uneven chip placement, low-gauge terminal wires, poor assembly, and bulbs held together with inferior adhesives. At best, solder joints will crack and fail on low-quality LEDs after a few weeks of use. In the worst case, these bulbs can damage housings as the extra flux and adhesive evaporates and creates a residue on the lens of the housing.\nDiode Dynamics bulbs are produced with modern, computerized equipment, and only the best materials, to ensure complete uniformity, high quality, and long bulb life.\nAll Diode Dynamics products come with a 30-day satisfaction guarantee and a 3-year limited replacement warranty.\nQuestions? Feel free to ask here, PM, email [email protected] or call us: (314) 205-3033\n*PM us for the free-shipping code* (U.S. forum members only)","domain":"optical_engineering"}
{"url":"http://www.iokit.com/cyxus-blue-light-filter-computer-glasses-for-blocking-uv-headache/","date":"2023-09-28T11:29:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510387.77/warc/CC-MAIN-20230928095004-20230928125004-00319.warc.gz","language_score":0.8916828036308289,"token_count":497,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__75062802","lang":"en","text":"Protect Your Eyes\nDigital screens release a form of invisible blue light.Blue Light is desirable to device manufacturers because of its efficiency and power. Cyxus can effectively block harmful blue light, which can lead to digital eye fatigue and eye strain. Great for alleviating visual fatigue and discomfort from long periods of fixing on the phone, web surfing, gaming and working under fluorescent lights.\nYou can get a painful burn on the front of your eye from the reflections of UV rays and sunlight. UV exposure will accelerate the aging of the eye, resulting in your old age when cataract. Our glasses can help protect your eyes from UV rays damage.\nPeople who use their devices before bed have a harder time falling asleep and staying asleep. Cyxus glasses work by blocking the blue light rays you are exposed to from your devices, you can still enjoy your device from the comfort of your bed and get a restful deeper sleep.\nThe Lenses are characterized by high transparency, resistance to scratch, anti-collision, ultra-thinness and lightness as well as anti-glare.\nCyxus glasses not only can block blue light/UV, eyes protection, you can also play a very good decorative effect, so you extraordinary temperament, quiet demeanor. These glasses allow the wearer to enjoy a classic, celebrated style while adding their own individuality.\nAll of our products have been authenticated by the authoritative institutes. Eye doctors recommend wearing these blue light blocking glasses to protect your eyes.\nAll of our products have 1 year warranty. Customer can send back the defective products for repair or exchange for free (if not man-made damage) during the period.\nANTI BLUE LIGHT--+0.0x Reading glasses, anti harmful blue ray, provide all-day protection, against the detrimental effect high energy visible blue light and UV400.\nDIMENSION--Lens width: 53mm, Lens height: 43mm, Bridge: 15mm, Frame total: 141mm; Arm: 140mm;\nPC LENS--Glasses lenses are high-end space PC lens with SHMC tecnology , shock resistant and water proof, dust free and easy to clean;\nTRANSPARENT LENS--No color difference, bring you good visual experience.\nLIFETIME WARRANTY--We provide worry-free lifetime warranty(no man-made)and friendly customer service.","domain":"optical_engineering"}
{"url":"http://multilensfilm.com/c_product_2/","date":"2023-02-04T16:03:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500140.36/warc/CC-MAIN-20230204142302-20230204172302-00491.warc.gz","language_score":0.744810938835144,"token_count":243,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__198879625","lang":"en","text":"Leading manufacturer of 3d Multi Lens Film,Hologram Lens Film in China, Specialize in developing/manufacturing Hologram Lens Film, Holographic Lens films, 3d Multi lens film, Metalized film etc.\nOur products are widely used on printing, lamination, decoration, craft, gift wrap, shopping bag, leather& housewares.\nAFC TECHNOLOGY Co.,Ltd. specializes in Manufacturing, Supplying and Exporting Fresnel Lens Film,Multi Lens Film,Holographic Lens Film, with a factory in China. Enquiries from global wholesalers, Distributors, buyers, agents and OEM/ODM are welcome.We assure you of on-time delivery and careful after-sales service.\nMobile/Wechat: (+86)-18681511910 (Sam)\nE-Mail: email@example.com (Sam)\nTelephone: (86)-755-27231122 , 18681511910\nAddress: No.12,Songshan west road,ShaJing Town,BaoAn District,ShenZhen,China","domain":"optical_engineering"}
{"url":"https://gearburn.com/2017/02/sony-smartphone-camera-sensor-1000fps/","date":"2017-03-27T12:38:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189472.3/warc/CC-MAIN-20170322212949-00342-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9129410982131958,"token_count":272,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__224014637","lang":"en","text":"Apple, Google‘s phones and Samsung have long ruled the roost when it comes to slow-motion video, offering smooth 240fps support. Sure, we’ve seen the likes of Lenovo claim 960fps as a standard, but this was via ineffective software trickery.\nNow, Sony has laid the foundation down for super slow-motion, announcing a new smartphone sensor capable of shooting at 1000fps.\n“This newly developed sensor with DRAM delivers fast data readout speeds, making it possible to capture still images of fast-moving subjects with minimal focal plane distortion as well as super slow motion movies at up to 1000 frames per second (approximately 8x faster than conventional products) in full HD (1920×1080 pixels),” Sony wrote in a statement.\nSony’s new smartphone camera sensor offers incredible 1000fps video, but when will we actually see it in a device?\nOtherwise, the sensor supports 4K recording, 60fps video and conventional 240fps slow-motion.\nHowever, the real question is whether today’s smartphone chips are capable of processing a 1000fps video clip in the first place. After all, the Snapdragon 821 and 835 top out at 240fps as well as 4K/30fps.\nCheck out a sample below.\nFeatured image: Sony Xperia XZ","domain":"optical_engineering"}
{"url":"https://zagrebdesignweek.com/en/portfolio/tishler-eyewear-en/","date":"2021-04-14T21:03:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038078021.18/warc/CC-MAIN-20210414185709-20210414215709-00585.warc.gz","language_score":0.9681058526039124,"token_count":277,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__230314891","lang":"en","text":"Tishler is a story inspired by beauty, uniqueness, durability and sustainability that wood has to offer. At Tishler they strive to give you not just the best products in the world but also the best products for the world, focusing especially on the environmental and social effects of our products through its entire life-cycle. With years of experience in working with wood , we have engineered what we believe is one of the best wooden frames in the world.\nAt Zagreb Design Week, they present wooden glasses of their own production, which they produce with partners from Slovenia. Their wooden frames offer quality glasses (they use high-quality UV400 lenses from the renowned company ALCOM from Slovenia. Polarized and mirror lenses are also available. Each frame is equipped with high-quality steel spring hinges, which provides maximum comfort when wearing glasses every day. Tishler frames fit perfectly. Given the specially designed frame combined with spring hinges, the glasses are extremely comfortable to wear and rest on your head. They are also performed in the version with corrective lenses. it is possible to install vision lenses in the frames. They are easy to wear. Contrary to the common opinion that wooden sunglasses are heavy, the experience of their customers says that they are extremely light and comfortable. Since a special birch air core is used when making the glasses, Tishler glasses offer excellent durability.","domain":"optical_engineering"}
{"url":"https://physics.cas.lehigh.edu/faculty-staff/ivan-biaggio","date":"2024-04-16T02:01:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817036.4/warc/CC-MAIN-20240416000407-20240416030407-00433.warc.gz","language_score":0.9276387095451355,"token_count":439,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__19702533","lang":"en","text":"Biaggio’s research is focusing on condensed matter physics and photonics, using different kinds of lasers to investigate light-matter interaction in various systems.\nIn the condensed matter area, his research group is working on the investigation of organic semiconductors. These materials often consist of molecular single crystals and they generally work in an area of condensed matter physics that is markedly different from conventional semiconductors. Biaggio’s group has contributed greatly to advances in the understanding of the photophysics of one organic semiconductor that serves as a prototype material in the fields: rubrene. He and his graduate students published the first complete spectroscopy characterization of the material, the first visual observation of the diffusion of triplet excitons, also determined the connection between its photocunductivity and triplet exciton states. His group is currently investigating the properties of a quantum-entangled pair of triplet excitons that are generated after photoexcitation and wonder independently in the crystal by diffusing, while remaining in an entangled state from the point of view of spin. His work with Eric Wolf, a Lehigh undergraduate student at the time, lead to the first observation of fluorescence quantum beats in rubrene/\nIn the photonics area, Biaggio’s research lead to the development of a specific small-molecule organic material that can be easily combined with silicon photonics to create the optical equivalent of a transistor, a special waveguide device that can be used to control light with light (all-optical switching). This lead to the first ultra-high-speed demonstration of all-optical switching using the “DDMEBT” material, and to the later development of a general new paradigm for enhancing photonics circuits by homogenously filling nanometer scale gaps in silicon waveguides with a mall-molecule material using physical vapor deposition. Biaggio’s group is also doing general work in various areas of nonlinear optics, such as special coupled waveguides that can be used for frequency conversion in glass fibers, or the development of organic electro-optic modulators for integrated photonics.","domain":"optical_engineering"}
{"url":"https://storex-technologies.com/products.html","date":"2023-10-04T05:24:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511361.38/warc/CC-MAIN-20231004052258-20231004082258-00417.warc.gz","language_score":0.8439076542854309,"token_count":229,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__95654489","lang":"en","text":"Storex Technologies produces Quantum Optical Lithography equipment\nQuantum Optical Nanowriter QON-2000, the first equipment developed by Storex Technologies, is a laser maskless lithography system, based by recent results obtained in Quantum Optical Lithography.\nThis equipment is able to realize prototypes at nanoscale with high productivity and low cost for research organizations (universities, institutes and companies) involved in nanotechnology activities.\n- Resolution: 1 nm\n- Speed: 1000 nm/s\n- Writing area: 100 nm x 100 nm\n- Software for automatic calibration, writing process and monitoring\n- Wide choice of 2D materials substrate, including graphene\n- System dimensions: (L x W x H) 100 x 50 x 30 cm\n- Mass: 32 Kg\n E. Pavel, G. Prodan, V. Marinescu and R. Trusca, \"Recent advances in 3- to 10-nm quantum optical lithography\", J. Micro/Nanolith. MEMS MOEMS 18(2), 020501(2019).","domain":"optical_engineering"}
{"url":"http://www.kqjczl.cn/youshi/292.html","date":"2020-09-20T20:04:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400198652.6/warc/CC-MAIN-20200920192131-20200920222131-00153.warc.gz","language_score":0.6623122692108154,"token_count":1502,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__151342668","lang":"en","text":"In order to let users understand the company's formaldehyde odor control products intuitively: formaldehyde odor decomposition catalyst, do a tindal phenomenon experiment.\nDindal phenomenon experiment:\nMaterials: 1 laser pen, 1 cup of transparent water, 1 cup of company products\nMethods: irradiate two cups with different liquid vertically with laser pen, and a light column will appear in the cup with formaldehyde odor decomposition catalyst!\n1、 What is the Dahl phenomenon?\nA: when a beam of light passes through the colloid, a bright \"path\" can be observed in the colloid from the direction perpendicular to the incident light. This phenomenon is called Tyndall effect;\n英国物理学家约翰·丁达尔(John Tyndall 1820～1893年) ，1869年首先发现和研究了胶体中的上述现象。这条光亮的“通路”是由于胶体粒子对光线散射形成的。 丁达尔效应是区分胶体和溶液的一种常用物理方法。\nJohn Tyndall (1820-1893), a British physicist, first discovered and studied the above phenomena in colloids in 1869. This bright \"path\" is due to the scattering of light by colloidal particles.  Dingdal effect is a common physical method to distinguish colloid from solution.\n2、 Why is there a light column in the cup with catalyst?\nA: because there are small solid particles in the solution. Small particles scatter light to see the light column. These indicate that there is a substance in our reagent.\n在光的传播过程中，光线照射到粒子时，如果粒子大于入射光波长很多倍，则发生光的反射；如果粒子小于入射光波长，则发生光的散射，这时观察到的是光波环绕微粒而向其四周放射的光，称为散射光或乳光。丁达尔效应就是光的散射现象或称乳光现象。由于真溶液粒子半径一般不超过1 nm，胶体粒子介于溶液中溶质粒子和浊液粒子之间，其半径在1~100 nm。小于可见光波长（400 nm～700 nm），因此，当可见光透过胶体时会产生明显的散射作用。而对于真溶液，虽然分子或离子更小，但因散射光的强度随散射粒子体积的减小而明显减弱，因此，真溶液对光的散射作用很微弱。此外，散射光的强度还随分散体系中粒子浓度增大而增强。\nIn the process of light propagation, when the light hits the particles, if the particles are many times larger than the wavelength of the incident light, light reflection will occur; if the particles are smaller than the wavelength of the incident light, light scattering will occur. At this time, the light that the light waves radiate around the particles is observed, which is called scattered light or milk light. Tindal effect is the scattering phenomenon of light or milk light phenomenon. As the radius of the particles in the real solution is generally less than 1 nm, the colloidal particles are between the solute particles and the cloud particles in the solution, and the radius is 1-100 nm. It is smaller than the wavelength of visible light (400 nm ~ 700 nm). Therefore, when visible light passes through colloid, it will produce obvious scattering effect. For the real solution, although the molecule or ion is smaller, the intensity of the scattering light is obviously weakened with the decrease of the volume of the scattering particles, so the scattering effect of the real solution on the light is very weak. In addition, the intensity of scattering light also increases with the increase of particle concentration in the dispersion system.\nThe brighter the light column is, the more solid particles are contained in the solution, the higher the concentration is, and the better the treatment effect is.\n3、 What is the solid in the cup?\nA: it is made of food additives like stone powder, which can be dissolved in water. Therefore, it is non-toxic and harmless. So that the company's products are non-toxic and harmless, no secondary pollution.\n4、 What is the use of small particle solids in cups?\nCatalytic decomposition of formaldehyde into water and carbon dioxide.\n5、 Why does small particle solid decompose formaldehyde?\nA: small solid particles are between positive and negative charges.\nFeatures: after illumination, one end of solid particles is positively charged and the other is negatively charged. The positive end oxidizes and decomposes formaldehyde into water and carbon dioxide.\n1. The electron of oxidant is reduced\n2. The reductant loses electrons and is oxidized\n3. Formaldehyde is a reducing agent, which is oxidized to carbohydrates when electrons are lost.\n4. Electrons are negatively charged subatomic particles.\n5. The same charge repels each other and the different charges attract each other\nOxidation and reduction are the same process.","domain":"optical_engineering"}
{"url":"https://lamphara.com/","date":"2020-07-03T10:46:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655881984.34/warc/CC-MAIN-20200703091148-20200703121148-00268.warc.gz","language_score":0.9440959095954895,"token_count":112,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__200766183","lang":"en","text":"Say something interesting about your business here.\nIn all aspects of driving, safety must always come first – and this is especially true when choosing the right headlights for your car. Having a clear field of vision gives you valuable extra moments to react if something unexpected happens – so here are the best headlight bulbs for safe night driving.\nCar makers are moving towards adaptive LED headlights and even laser units, but the humble halogen bulb is still the most common headlight. The technology has survived thanks to continued development of these filament-based lamps. Aftermarket perform","domain":"optical_engineering"}
{"url":"http://www.angelatiger.com/en/product/223-406.html","date":"2023-12-03T02:02:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100476.94/warc/CC-MAIN-20231202235258-20231203025258-00542.warc.gz","language_score":0.6798847317695618,"token_count":1355,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__307491859","lang":"en","text":"YS6003 desktop spectrophotometer can accurately measure and express various color difference formulas and color indexes in a variety of color spaces. The built-in temperature sensor monitors and compensates the test environment to ensure more accurate measurement results. It is widely used in reflection samples, transparent samples color transfer and quality control in plastic electronics, paint and ink, textile and garment printing, printing and other industries.\n1, High configuration of hardware: 7 inches TFT Color Capacitive Touch-screen Display; Concave Grating.\n2, Double Array 256 Image Element CMOS Sensor; Long life-span stable xenon lamp.\n3, With reflective and transmissive spectrum, accurate Lab value, good to calculate color formula and do precise color transmission.\n4, Auto identify measuring aperture. Freely switchable between 3 measuring apertures: Φ 25.4mm/8mm/4mm.\n5, Built-in temperature sensor to monitor and compensate the measuring temperature to ensure the measurement more precision.\n6, Wavelength range 360nm – 780nm.It can be used to test fluorescent samples with wide applicability and simple operation\n7, Independent light source detector to ensure the light source reliable.\n8, Multiple measurement modes: Quality Management Mode, Sample Mode; Meet more users’ requirement.\n9, Multiple accessories, sample holders, fixation clamp, suitable to more working condition.\n10, Big capacity data storage, for 20000 pieces test result.\n11, Built-in camera locating.\n12, More powerful extended functions at the PC software.\nReflect: di:8°, de:8°(diffused illumination, 8-degree viewing angle);SCI (specular component included)/SCE (specular component excluded) ; Include UV / excluded UV light source;\nTransmittance: di:0°, de:0° (diffuse illumination: 0° viewing); SCI (specular component included)/SCE (specular component excluded) ;\nConforms to CIE No.15，GB/T 3978,GB 2893,GB/T 18833, ISO7724/1, ASTM E1164, DIN5033 Teil7\n|Application||It is used for accurate analysis and transmission of laboratory color. Apply in paints, inks, textiles, garments, printing and dyeing, printing etc industries for color transfer and quality control.|\n|Integrating Sphere Size||Φ154mm|\n|Light Source||360 nm to 780 nm, Combined LED Light (5 million life span)|\n|Spectrophotometric Mode||Concave Grating|\n|Sensor||256 Image Element Double Array CMOS Image Sensor|\n|Measured Reflectance Range||0-200%|\nReflective : Φ30mm/Φ25.4mm, Φ10mm/Φ8mm, Φ6mm/Φ4mm;\nTransmissive : Φ25.4mm;\n1. Automatic identification of switch caliber\n2. Customized Configuration caliber and lens position\n|Specular Component||Reflectance: SCI&SCE / Transmittance: SCI&SCE|\n|Color Space||CIE LAB,XYZ,Yxy,LCh,CIE LUV,Musell,s-RGB,HunterLab,βxy,DIN Lab99|\n|Color Difference Formula||ΔE*ab,ΔE*uv,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00, DINΔE99,ΔE(Hunter)|\n|Other Colorimetric Index||\nWI (ASTM E313, CIE/ISO, AATCC, Hunter),\nYI (ASTM D1925, ASTM 313),\nMI (Metamerism Index),\nStaining Fastness, Color Fastness, Color Strength, Opacity,\n8° Glossiness,Gardner Index,APHA/ Pt-Co Index, 555 Index, Haze(ASTM D1003)\n|Displayed Data||Spectrogram/Values, Samples Chromaticity Values, Color Difference Values/Graph, PASS/FAIL Result, Color Offset|\n|Measuring Time||About 2.4s (Measure SCI & SCE about 5s)|\nSpectral reflectance: Φ25.4mm/SCI, Standard deviation within 0.06% ;\nChromaticity value:Φ25.4mm/SCI, Standard deviation within ΔE*ab 0.01 ( When a white calibration plate is measured 30 times at 5 second intervals after white calibration);\nSpectral Transmittance: Φ25.4mm/SCI, Standard deviation within 0.06%;\nChromaticity value:Φ25.4mm/SCI, Standard deviation within ΔE*ab 0.015 ( When a white calibration plate is measured 30 times at 5 second intervals after white calibration).\n|Inter-instrument Error||Φ25.4mm/SCI, Within ΔE*ab 0.15 (Average for 12 BCRA Series II color tiles)|\n|Power||AC 24V, 3A Power adapter power supply|\n|Illuminant Life Span||5 years, more than 3 million times measurements|\n|Display||7-inch TFT color LCD, Capacitive Touch Screen|\n|Data Port||USB & Print serial port|\n|Data Storage||Standard 1000 Pcs, Sample 20000 Pcs|\n|Language||Simplified Chinese, Traditional Chinese, English,|\n|Operating Environment||0~40℃, 0~85%RH (no condensing), Altitude < 2000m|\n|Storage Environment||-20~50℃, 0~85%RH (no condensing)|\n|Standard Accessory||Power Adapter, User Guide, CD Disk(PC Software), USB cable, Standard Calibration Board, Black Calibration Cavity, Transmission black baffle, Sample holder, 25.4mm caliber, 8mm caliber, 4mm caliber|\n|Optional Accessory||Micro-printer, Transmissive Test Component, Instrument inversion components,,culture dish|\n|Notes: The specifications are subject to change without notice. YS6003 quality management software can only be used for data management|","domain":"optical_engineering"}
{"url":"http://www.markneville.com/the-moth-and-the-lamp","date":"2019-09-23T04:00:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575860.37/warc/CC-MAIN-20190923022706-20190923044706-00367.warc.gz","language_score":0.9190312027931213,"token_count":178,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__163993338","lang":"en","text":"16mm film, mute, 10 mins 15 secs, looped.\nCommissioned by Kunsthalle Bern, Switzerland.\nExhibited at Kunsthalle Bern, 2006, Van Abbemuseum Eindhoven, 2007, and Kunstmuseum Bern, 2008\n(Made in collaboration with Pavel Buchler)\nA moth circles a bright lamp in this unedited, looped film. It was filmed at four thousand frames a second using a camera normally employed in car-crash testing, in a specially constructed interior.\nThe film is projected onto a hanging frame, with the 16mm projector also clearly visible in the exhibition space. The lamp depicted in the filmed image slowly becomes a metaphor for the bulb within the projector, and the moth circling that light source thus becomes a symbol for the celluloid passing in front of that projector bulb.\nIN THE PRESS","domain":"optical_engineering"}
{"url":"https://www.eyelusions.co.uk/fundus-imaging/","date":"2022-06-27T04:53:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103328647.18/warc/CC-MAIN-20220627043200-20220627073200-00295.warc.gz","language_score":0.8883236646652222,"token_count":172,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__272147821","lang":"en","text":"Thoroughly looking after the health of your eyes…\nThe fundus camera is a special microscope attached to a digital camera, this enables us to take an image of the back of your eye (known as the fundus or retina).\nSometimes, it is difficult to see small and subtle changes using traditional methods.\nDigital imaging can help with early detection and monitor the health of your eyes (conditions such as glaucoma, high blood pressure, diabetes, macular degeneration, we can show you any changes and explain any conditions in greater detail. These images are stored on our digital practice software and they can be a useful comparison for any ongoing changes.\nThis service is available to all our patients (both private and NHS) for a small fee of £10.00.","domain":"optical_engineering"}
{"url":"https://jm.j2gmn.com/12760-seeing-without-glasses-lasik-or-lens-which-is-better.html","date":"2022-07-06T01:01:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104655865.86/warc/CC-MAIN-20220705235755-20220706025755-00090.warc.gz","language_score":0.9488703608512878,"token_count":660,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__214076189","lang":"en","text":"We are searching data for your request:\nUpon completion, a link will appear to access the found materials.\nLife without glasses - LASIK or lens? Comparison of methods\nIn Germany, more than 60 percent of people over the age of 16 now need glasses - and the trend is rising. Extensive VDU work, long reading in rooms with little daylight and wrong eating habits have led to an increase in ametropia in recent years. However, many adults are bothered by the glasses and they opt for surgical measures such as laser eye surgery or lens implants in order to permanently dispense with the unloved \"nose bike\". An overview of which method is suitable and when:\nLASIK - method of choice for low ametropia\nCorrection with the laser is considered very safe today. LASIK stands for laser-in-situ keratomileusis and is a scientifically recognized method to correct nearsightedness up to minus ten, farsightedness up to three and astigmatism up to approximately minus five diopters. In today's Femto-LASIK, a wafer-thin layer of the cornea is first prepared with a laser. This layer, also called a flap, is folded aside and the exposed inner surface of the cornea is treated with an excimer cold light laser. Dr. Robert Löblich, ophthalmologist at Artemis Eye Clinics in Frankfurt explains what happens: \"The laser changes the refractive power in the eye and thus corrects the ametropia.\" LASIK has been approved in Germany since 1990 and is the most experienced procedure. The procedure is not suitable for pregnant women or nursing mothers, as changes in the refractive power occur in the body as a result of hormone changes. LASIK treatments are not or only partially suitable for people with rheumatism or certain eye diseases.\nContact lenses in the eye\nIn order to enable people with severe vision problems to live without glasses, doctors use artificial lenses that correct farsightedness up to eight diopters and nearsightedness down to minus 20 diopters - also in combination with astigmatism. In doing so, they put an artificial lens in addition to their own. The natural ability of the eye to focus itself at different distances remains the same with this procedure as with LASIK. A cut the size of a pin is sufficient for the procedure. \"Since no tissue is removed here, lens implants are also suitable for people with very thin corneas,\" says Dr. Praiseworthy. \"And the procedure is reversible.\" Stable glasses values for at least one year are the basic prerequisite for the operation. In addition, doctors advise against such eye surgery for chronic eye infections as well as during pregnancy and lactation.\nExtreme ametropia can also be eliminated\nTo treat extreme ametropia of up to -24 and +10 diopters, doctors use a combination of lens insert and LASIK. With all methods, patients enjoy their new eyesight shortly after the operation. \"Many patients report that the operation gave them a completely new attitude towards life with an enormously improved quality of life,\" says Dr. (pm)","domain":"optical_engineering"}
{"url":"http://money.mymotherlode.com/clarkebroadcasting.mymotherlode/article/bizwire-2023-9-5-adtrans-oscilloquartz-optical-cesium-clock-outperforms-in-tests-at-leading-european-metrology-institute","date":"2024-04-22T19:26:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00025.warc.gz","language_score":0.887236475944519,"token_count":1040,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__199443401","lang":"en","text":"Adtran’s Oscilloquartz optical cesium clock outperforms in tests at leading European metrology institute\n- Precision synchronization technology is crucial for scientific measurement applications\n- A renowned national authority on metrology based in Central Europe has conducted a rigorous evaluation of the OSA 3300-HP\n- Adtran’s market-first high-performance optical cesium clock achieved outstanding results with unprecedented levels of accuracy and stability\nAdtran today announced that one of the world’s leading metrology institutes has conducted a three-month-long evaluation of its OSA 3300-HP high-performance optical cesium atomic clock. Based in Central Europe, the national laboratory tested Adtran’s industry-first solution to establish its suitability for scientific measurement and calibration applications that require precise synchronization. The OSA 3300-HP succeeded in delivering the strict timing accuracy and long-term stability needed for metrology use cases with results far exceeding product specifications. The findings underline the value of Adtran’s Oscilloquartz optical cesium technology for a broad spectrum of industries, from astronomical research to defense operations.\nThis press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20230905097567/en/\nAdtran’s OSA 3300-HP has set new benchmarks for timing accuracy and long-term stability. (Photo: Business Wire)\n“We’re pleased to see this validation for our OSA 3300-HP. As the market’s first commercial high-performance optical cesium atomic clock, it offers levels of performance that far exceed best-in-class magnetic cesium devices. Its unique capabilities have the potential to enhance the work of scientists and engineers in a diverse range of metrology, science, research, time scale and ground station fields, including space exploration,” said Gil Biran, GM of Oscilloquartz, Adtran. “Now that it’s achieved these successful results in some of the industry’s most thorough tests, science and research institutions across the world will be able to harness our device to bring new levels of accuracy to their work.”\nAdtran’s OSA 3300-HP represents a major achievement in network synchronization. Building on Oscilloquartz’s 74-year history and the expertise of its team, the device provides a precise and ultra-stable frequency source for the most demanding and critical applications. It enables highly accurate synchronization over an extended 10-year lifetime thanks to its advanced optical cesium technology, which pumps atoms to the desired energy states more efficiently than legacy magnetic-based solutions. The OSA 3300-HP’s robust and compact design makes it suitable for multiple applications, even in ground space-constrained environments. It’s also fully compliant with the latest RoHS standards and strict EU demands.\n“Assessments by this leading scientific evaluation center are recognized as among the most stringent evaluations in the world of metrology. By meeting and surpassing these rigorous standards, our OSA 3300-HP has proven its value for metrology, time-keeping institutes and scientific research. It will be the foundation for future innovation in sectors from satellite navigation to nanoscale technology,” commented Jörg Urban, AVP of EMEA business development at Oscilloquartz, Adtran. “Our optical pumping timing solutions have set a new benchmark for precision and availability. As well as having a transformative impact on metrology advancement, our technology provides the vital resilience required for PNT assurance in critical infrastructure. What’s more, it empowers communication service providers to harness robust and accurate GNSS backup to deliver valuable timing offerings with differentiated service level agreements.”\nFurther details including official results from the OSA 3300-HP evaluation are now available on request.\nA brief summary of the findings can also be found in these slides.\nADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) is the parent company of Adtran, Inc., a leading global provider of open, disaggregated networking and communications solutions that enable voice, data, video and internet communications across any network infrastructure. From the cloud edge to the subscriber edge, Adtran empowers communications service providers around the world to manage and scale services that connect people, places and things. Adtran solutions are used by service providers, private enterprises, government organizations and millions of individual users worldwide. ADTRAN Holdings, Inc. is also the largest shareholder of Adtran Networks SE, formerly ADVA Optical Networking SE. Find more at Adtran, LinkedIn and Twitter.\nADTRAN Holdings, Inc.\nThe OSA 3300-HP succeeded in delivering the strict timing accuracy and long-term stability needed for metrology use cases","domain":"optical_engineering"}
{"url":"https://xe.today/2023/10/20/ford-develops-front-lighting-system-based-on-cameras/","date":"2023-12-04T05:47:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100525.55/warc/CC-MAIN-20231204052342-20231204082342-00061.warc.gz","language_score":0.9168065190315247,"token_count":221,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__206481668","lang":"en","text":"Designed to enhance safety, this system uses GPS data and forward-facing video cameras to detect road signs and predict cornering angles, enabling the headlights to provide the best illumination.\nAdvanced front lighting system based on camera.\nThe American carmaker also said the system can “expand the beam of light at intersections and roundabouts to better illuminate obstacles not in the direction of travel”.\nIn addition, Ford is developing a spot lighting system to detect pedestrians, cyclists, or large animals. This system uses infrared cameras and can continuously identify and track up to 8 different objects at distances of up to 120m.\nKen Washington, Ford’s Vice President of Research and Advanced Engineering, said: “Many drivers at night have to quickly react to unexpected people or objects on the road. Advanced camera-based lighting and spot lighting systems help ensure that drivers are quickly alerted when people or animals can cause danger.\n- Ford showcases technology on the new Ranger\n- Ford brings new technologies to CES Asia\n- Ford continues to embrace future technologies\nAnh Quan (TTTD)","domain":"optical_engineering"}
{"url":"https://www.expresslocksmith.net/cctv","date":"2023-04-01T01:40:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949694.55/warc/CC-MAIN-20230401001704-20230401031704-00499.warc.gz","language_score":0.8981395363807678,"token_count":839,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__188470375","lang":"en","text":"CCTV / DVR\nThis unobtrusive camera is great for indoor and outdoor use. With 330 lines of resolution you'll get a great view wherever you place it. The built-in mount and quick to change focus makes this ideal for areas needing overlapping camera coverage 330 Lines Resolution, 3.6 mm Lens.\nWhen detail and clarity is absolutely necessary for an indoor location you can't go wrong with this camera. This high-resolution color camera provides 480 Lines of resolution combined with a powerful 410,000 pixel-imaging chip. The camera is magnetically shielded making it ideal for positioning in areas with machinery or electronics nearby. - 480 Lines Resol\nWaterproof, Black and White, Infrared Mul-T-Lock® This black and white weatherproof security camera is 100% waterproof up to 90 feet. It features a 3.6mm fixed focus lens and built-in electronic iris. It is encased in black brass housing. It has built-in infrared LEDs. A mounting bracket and 12V DC power supply is included. 100% Waterproof, 420 Lines Resolution, Built-in Infrared LEDs.\nVandal resistant, weather tight and able to see up to 40 feet in complete darkness. This camera is flexible for just about any situation. It�s excellent for areas where lights are turned completely off at night or in dark storage areas. It automatically switches from color to black and white when light levels drop to maintain superior optical clarity. 380\nThis unobtrusive camera is easily mounted in any tight area. Only the dome is exposed being 1' high and 3' wide. The camera is vandal resistant and contains a pinhole lens. 420 Lines Resolution, 3.7mm Lens, Aluminum Housin.\nThis camera is equipped with a 25X optical zoom lens, Sony digital chip and retractable IR filter. It automatically switches from high-resolution color to black and white when light drops down to shadowy levels. The lens rotates a full 360 degrees and has 128 preset viewing positions.\nThis small lightweight camera is impact resistant. It comes with a built-in IR LED that provides light in dark areas. This camera is perfect for low traffic public areas that have variable or low light levels. A built in 4-9mm variable focus lens gives it great flexibility. Vandalism Resistant, Built-in IR LED, 470 Lines Resolution\nThis compact camera has multiple IR LEDs that turn dark areas into illuminated areas. The LED light emitted isn't noticeable to those passing by. The camera automatically switches from color to black and white to enhance low light viewing. / Built-in LED / 470 Lines Resolution / 4-9mm with Auto Iris.\nThis state of the art security camera can fit just about anywhere. At only 10 cm it's the smallest dome camera we sell. The shield stops people from changing the focus of the camera and obscures where it is pointed. Tiny Size, 380 Lines Resolution, Built-in Lens.\nFast and accurate with exceptional optical zoom capabilities, this indoor PTZ camera offers exceptional surveillance capabilities. Its dark shroud prevents onlookers from knowing what you're looking at. Comes as either color or black and white capabilities. Shadow tour allows a preprogrammed motion of the camera. - 470 Lines Resolution Color - 500 Lines Res\nDisplays Accurate Time and Captures Great ImageThis stylish wall mounted clock contains accurate quartz movement and contains a high quality hidden camera. A wide angel lens provides video of an entire room. - 330 Lines Resolution - 3.6mm Wide Angel Lens.\nGreat for Changing Light Conditions This ultra compact camera automatically switches from color to black and white in low light conditions. This is a favorite for placing above infrequently used locations.330 Lines Resolution Color Mode, 400 Lines Resolution Black and White Mode, 3.6mm Lens\nDay/night cameras perform as color cameras in bright light conditions and automatically switch to black and white in low light. Black and white cameras give better resolution in low light. This day/night digital camera features an advanced digital process circuit design. It delivers high-resolution superior color images in bright light and sharp monochrome p","domain":"optical_engineering"}
{"url":"https://renew.org.au/renew-magazine/buyers-guides/led-buyers-guide/","date":"2022-12-01T22:47:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710870.69/warc/CC-MAIN-20221201221914-20221202011914-00840.warc.gz","language_score":0.9542015790939331,"token_count":942,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__173132124","lang":"en","text":"New choices in lighting: An LED buyers guide\nThe move to LED lighting has become mainstream, with more options appearing constantly. Lance Turner takes a look at what’s available.\nFor many homes, lighting is one of the most overlooked aspects. Incorrect lighting can make a room unpleasant to be in, or make it more difficult to perform tasks such as reading or cooking. Getting it right can take a bit of effort, and though this guide won’t answer all your questions about lighting design, hopefully it will give you a headstart when thinking about the types of lighting to use and the questions to ask.\nWith almost all lighting technology moving towards LEDs, this guide focuses on LED bulbs. Even the reasonably efficient technologies such as fluorescent tubes and compact fluorescent lamps are rapidly being replaced by LED lighting. It’s likely that within 10 years, most other light sources will have disappeared in favour of the robustness, longevity and energy efficiency of LEDs.\nWhat is an LED?\nLEDs (light emitting diodes) are unlike any other lighting system. They contain no glass tubes or heating filaments, instead using a small piece of semiconductor material (as used in computer chips) that emits light directly when a current is passed through it.\nLEDs produce light in a range of colours, without the need for coloured filters; thus, to get white light, a phosphor is used over a blue or UV LED chip, similar to what’s used in a fluorescent tube.\nNote that the LED is actually the small light producing element(s) in a light bulb or fitting, but most people now erroneously refer to LEDs as the entire bulb or fitting.\nThere are a number of specifications that are useful to consider when buying LED lights.\nAll light bulbs have a wattage rating, which measures how much power they consume. This is where LEDs have a shining advantage over older, more inefficient technologies. For domestic LED lights, the rating is usually between one and 20 watts, compared to a typical incandescent rating of 25 to 100 watts.\nLight output: lumens, LUX and beam angle\nMany LED bulbs include an ‘equivalent-to’ wattage rating, showing the wattage of the incandescent bulb that the LED bulb is equivalent to in terms of light output. For example, a six watt LED bulb might be rated as putting out the same amount of light as a 50 watt incandescent.\nThis ‘equivalent-to’ rating is based on the light output in lumens. The lumen rating of an LED bulb, usually included on the packaging, measures the total light output, relative to the response of the human eye.\nFor bulbs that are suitable for general room lighting—those with wide beam angles, above 60 degrees, but preferably 90 degrees or more—matching lumens for lumens should give you the result you need. Thus, for these types of lights (these are generally found in the common Edison screw, bayonet or ‘oyster’ fittings), the ‘equivalent-to’ rating should be all you need to determine if the bulb is a suitable replacement.\nFor directional lights, often known as spot lights, it’s a bit different. These are lights with a smaller beam angle, up to around 60 degrees. Such lights are generally used for task lighting, directed onto a desk or work area. Halogen downlights are an example of these—it’s because of their small beam angle that so many of them were needed to light a room! For these spot lights, small differences in the beam angle can make a big difference in how bright the light appears. Many people have had the experience of buying an LED bulb which was meant to be equivalent to a 50 watt halogen, but found that it appears much less bright. The lumens may have been lower, but more likely the beam angle was narrower, creating a bright light directly under the light but darker patches around it.\nFor the full tables from this guide in PDF format, click here\nRead the full article in ReNew 133.\nThis article was first published in Renew 133 (October – December 2015). Renew 133 has a focus on reuse and recycling.\nMany energy monitoring products need you to access breaker box wiring to install current clamps and the like. This is work that should be done by a qualified electrician. The Powersensor Solar Monitor, however, can be installed by the homeowner without the cost of calling in a sparkie.Read more","domain":"optical_engineering"}
{"url":"http://spark-oe.com/support_more_214.html","date":"2019-11-12T04:35:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496664567.4/warc/CC-MAIN-20191112024224-20191112052224-00073.warc.gz","language_score":0.9072214365005493,"token_count":230,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__120878699","lang":"en","text":"Lighting Design DIALux\nTianjin, Street Lighting Design\nSite: Tianjin Port\nDesign: Warm and cold white light mixed use according to that warm light is longer wavelength with penetration ability, well the light efficiency is low compared to cold white.\nStandard: Reference GB50582-2010, the illumination should meet railway operation uniformity requirements, Eav10lx, U0 0.25\nA standard: Well Tianjin Port is the largest port in the north, with heavy workload. According to the requirements, it is required to raise the level of the first class of illumination standard, Eav15lx, U0 0.25\nHaze Weather Level: However, the northern port of autumn and winter with longer haze weather, in order to improve operational efficiency and safety, we design Eav20lx, U0 0.25, light color temperature of 3000K and 5500K.\nInstallation: Lamps installed in the railway along the steel frame across the rails, steel frame height of 10 meters, the spacing between the steel frame 100m, both sides of a frame with seven lamps","domain":"optical_engineering"}
{"url":"https://vkool-indonesia.com/en/automotive/detail/v-kool-x15","date":"2023-12-08T03:35:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00555.warc.gz","language_score":0.8617659211158752,"token_count":187,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__146707386","lang":"en","text":"V-KOOL X15 is the ideal solution for customers who want to control visible light reflections while reducing or minimizing the heat of the vehicle.\nIt is the industry's leading film technology that provides excellent visibility compared to films with typical dark visible light transmittance while achieving only 12% visible light reflectance.\n17.0% Visible Light Transmission\n12.0% Visible Light Reflectance\n69% Total Solar Energy Rejection\n99% UV Light Rejection\nSuperior Glare Reduction\nHelp to reduce glare while delivering the benefit of privacy protection.\nExcellent Shielding against UV\nProtect skin by blocking out more than 99% of UV rays.\nExtra-ordinary Heat Rejection\nEnjoy reduced heat transmission because of the infra-red reflection capabilities.\nDeveloped in USA\nExperience superior quality product technology that was developed in Silicon Valley, USA.\nBuy Now hereBuy & Enquiry","domain":"optical_engineering"}
{"url":"http://extremelasers.com/","date":"2017-04-28T02:23:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122726.55/warc/CC-MAIN-20170423031202-00397-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.855666995048523,"token_count":282,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__178635276","lang":"en","text":"Who We are\nA QUICK INTRODUCTION\nHouson-based International Laser Company\nExtreme Lasers is an industry leader in high reliability, diode-pumped solid-state (DPSS) lasers for Scientific Research, Life & Health Sciences, Aerospace & Defense, Photovoltaics, Industrial Manufacturing, Semiconductors, and Microelectronics markets. Extreme Lasers' continuous wave (CW) and quasi-continuous wave (Quasi-CW) lasers are built for 24/7 hands-off, reliable operation and low cost of ownership. With a broad selection spanning ultraviolet (UV) to infrared (IR) wavelengths, power levels from 1mW to 20,000mW, and CW and mode-locked quasi-CW systems, Extreme Lasers has the right laser solution for your most demanding applications.\nWhat We Do\nTHE PRODUCTS WE OFFERLaser light show projectors\nFully customizable laser systems\nResearch and lab laser systems\nSpecial effects equipment\nGet In Touch\nHOW CAN WE HELP YOU\nIn the world of lasers one size certainly does not fit all. Please contact us to discuss your specific laser\nproject or application. There is no project too big or too small and we are confident that we are able to\nprovide exactly what you need. We welcome inquiries from around the globe. Contact us, today!","domain":"optical_engineering"}
{"url":"https://www.ilika.com/latest-news/spie-defense-commercial-sensing","date":"2019-02-23T22:52:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249556231.85/warc/CC-MAIN-20190223223440-20190224005440-00396.warc.gz","language_score":0.8150607943534851,"token_count":169,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__40454688","lang":"en","text":"|Event Name:||SPIE Defense + Commercial Sensing|\n|Ilika at the show:||Professor Dan Hewak will be talking on behalf of Ilika about:“Optical in-constants: extracting reliable n and k parameters in high-throughput for plasmonic alloys as a function of composition” on 14 APril 2019|\n|Date:||14th Apr 2019 - 18th Apr 2019|\n|Location:||Baltimore Convention Center Baltimore, Maryland, United States|\nWhat SPIE say: \"The leading conference on sensors, infrared technology, laser systems, spectral imaging, radar, LIDAR, and more returns to Baltimore in 2019. With over 4,500 attendees, this is the #1 sensing, imaging, and photonics technologies event for defense and commercial applications.\"","domain":"optical_engineering"}
{"url":"https://www.pgzb.tu-berlin.de/index.php?id=977","date":"2022-01-25T14:19:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304835.96/warc/CC-MAIN-20220125130117-20220125160117-00192.warc.gz","language_score":0.7712985277175903,"token_count":334,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__198552542","lang":"en","text":"Berliner Physikalisches Kolloquium\nim Wintersemester 2018/2019\nIm Berliner Physikalischen Kolloquium im Magnus-Haus hat\nProf. Dr. Jean-Pierre Wolf,\nDépartement de physique appliquée, Université de Genève, Schweiz,\nUltra-intense laser filaments have recently demonstrated their potential for modulating atmospheric processes . Four characteristic examples are highlighted in this presentation: lightning control, laser-induced water vapor condensation, transmission of optical data through fog, and modulation of the radiative forcing properties of cirrus clouds. For instance, field experiments in various atmospheric conditions showed that laser filaments induce water vapor condensation and fast droplet growth up to several μm as soon as the relative humidity exceeds 70%. This effect mainly relies on photochemical mechanisms allowing efficient binary condensation and ultrafast oxidation of existing organic particles. Conversely, clearing fogs and clouds is efficiently achieved by using ultrashort, high-intensity lasers with high average powers (>100 W, > kHz). Instead of evaporating the droplets, the mechanism relies on shock waves induced by the filaments that mechanically expel the droplets from the beam in a quasi-continuous way. The applications of such fog and cloud clearing are of paramount importance for recent programs on laser-based earth-to-satellite classical or quantum communications.\n J. P. Wolf, Short Pulse Lasers for Weather Control, Rep. Prog. Phys. 81, 026001 (2018).","domain":"optical_engineering"}
{"url":"https://www.potent-medical.com/urology-laser-for-lithotripsy.html","date":"2023-09-23T03:20:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506479.32/warc/CC-MAIN-20230923030601-20230923060601-00371.warc.gz","language_score":0.961620032787323,"token_count":219,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__298045203","lang":"en","text":"Urology laser for lithotripsy\nUrology laser lithotripsy is the most common laser procedure performed in urology.\nUrology laser lithotripsy is the most common laser procedure performed in urology. Laser lithotripsy is currently well established in the clinic, each of the three major components, including laser, optical fiber, and ureteroscope technologies, have continued to evolve over the past few decades.\nUrology laser lithotripsy uses lasers to break stones that are located in the urinary tract. This could include stones in the bladder, kidneys, ureters (tubes that carry urine from the kidneys to the bladder), or urethra (the tube through which urine leaves the body from the bladder).\nHolmium Laser Portable XP aims for the efficiency of lithotripsy. It depends on the wavelength of 2100 nm with portable volume, but the highest output power of 40 watts has become the gold standard of lithotripsy of Urology. It is recommended by urologists and has a lot of outstanding praise.","domain":"optical_engineering"}
{"url":"https://stocknewsmagazine.com/led-lighting-market-key-players-sharp-corporation-lumileds-holding-b-v-nichia-corporation-osram-opto-semiconductors-gmbh-semiconductor-co-ltd-lg-innotek-syska-led-others/","date":"2020-02-29T04:23:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875148375.36/warc/CC-MAIN-20200229022458-20200229052458-00007.warc.gz","language_score":0.8988069891929626,"token_count":910,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__50575079","lang":"en","text":"LED lighting Market report analyzes the market status, growth rate, future trends, market drivers, opportunities, challenges, entry barriers, risks, sales channels, and distributors. LED lighting market research report is formed with a nice combination of industry insight, smart solutions, practical solutions and newest technology to give better user experience. Businesses can obtain details about market drivers and market restraints which assist them to take presumption about reducing or increasing the production of particular product. LED lighting market report comprises of historic data, present market trends, market environment, technological innovation, upcoming technologies and the technical progress in the related industry.\nGet Free Sample Report at http://databridgemarketresearch.com/request-a-sample/?dbmr=global-led-lighting-market\nLED lighting market report is generated based on the market type, organization size, availability on-premises, end-users’ organization type, and the availability in areas such as North America, South America, Europe, Asia-Pacific and Middle East & Africa. By using integrated approaches and most up-to-date technology for the unmatched results this LED lighting market research report has been generated. LED lighting market report also makes available statistics on the current state of the industry as a valuable source of guidance and direction for companies and investors interested in this market. The report also analyses the emerging trends along with major drivers, challenges and opportunities in the LED lighting market.\nMajor Market Drivers & Restraints:\n- Increase demand for energy-efficient lighting systems.\n- Growth in the field of IOT.\n- Low LEDs prices.\n- High demand for LED from smart cities.\n- Lack of alertness towards installation costs and payback periods.\n- Development of substitute.\nMajor Market Competitors/Players:\n- Philips Lighting Holding B.V.,\n- GENERAL ELECTRIC,\n- Cree Inc.,\n- Virtual Extension.,\n- Zumtobel Group AG,\n- SAMSUNG ,\n- SHARP CORPORATION,\n- Lumileds Holding B.V.,\n- NICHIA CORPORATION,\n- OSRAM Opto Semiconductors GmbH.,\n- Semiconductor Co. Ltd.,\n- LG INNOTEK.,\n- SYSKA LED\nInquiry Before Buying at http://databridgemarketresearch.com/inquire-before-buying/?dbmr=global-led-lighting-market\nThe global LED lighting market is highly fragmented and the major players have used various strategies such as new product launches, expansions, agreements, joint ventures, partnerships, acquisitions, and others to increase their footprints in this market. The report includes market shares of LED lighting market for global, Europe, North America, Asia Pacific and South America.\nTable of content:\nChapter 1, to describe LED lighting market product scope, market overview, market opportunities, market driving force and market risks\nChapter 2, to profile the top manufacturers of LED lighting market, with price, sales, revenue and global market share of LED lighting market\nChapter 3, the LED lighting market competitive situation, sales, revenue and global market share of top manufacturers are analyzed emphatically by landscape contrast.\nChapter 4, the LED lighting market breakdown data are shown at the regional level, to show the sales, revenue and growth by regions.\nChapter 5, 6, 7, 8 and 9, to break the sales data at the country level, with sales, revenue and market share for key countries in the world\nChapter 10 and 11, to segment the sales by type and application, with sales market share and growth rate by type, application\nChapter 12, LED lighting market forecast, by regions, type and application, with sales and revenue\nChapter 13, 14 and 15, to describe LED lighting market sales channel, distributors, customers, research findings and conclusion, appendix and data source\nAccess Detailed TOC at https://databridgemarketresearch.com/toc/?dbmr=global-led-lighting-market\nAbout Data Bridge Market Research:\nData Bridge Market Research set forth itself as an unconventional and neoteric Market research and consulting firm with unparalleled level of resilience and integrated approaches. We are determined to unearth the best market opportunities and foster efficient information for your business to thrive in the market. Data Bridge endeavors to provide appropriate solutions to the complex business challenges and initiates an effortless decision-making process.\nData Bridge Market Research","domain":"optical_engineering"}
{"url":"http://theoryofeverything.org/sales/index.php?main_page=page_3","date":"2015-09-01T01:46:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-35/segments/1440644068749.35/warc/CC-MAIN-20150827025428-00052-ip-10-171-96-226.ec2.internal.warc.gz","language_score":0.9371663928031921,"token_count":598,"dump":"CC-MAIN-2015-35","global_id":"webtext-fineweb__CC-MAIN-2015-35__0__82877792","lang":"en","text":"If you would like more information on the Science, Technology, Engineering, and Math behind the Art, visit TheoryOfEverything.org.\nEverything you wanted to know about E8 Laser Etched Optical Crystal\nAll objects are made from 3D StereoLithography (.STL) export files from the Mathematica coded graphics engine by the author.\nHow does the 3D Laser Engraving work?\nThe 3D laser engraving process uses a computer guided laser to precisely engrave 3D images within optically perfect laser crystal. Initial efforts produced 3D images engraved inside a solid piece of optically perfect laser crystal without damaging the crystal block surface.\nWhat is the difference between a Lead Crystal and an Optic Crystal?\nLead Crystal historically also known as flint glass due to the original silica source, contains a minimum of 24% lead oxide for color, clarity, sparkle and brilliance. Crystal can consist of up to 35% lead, at which point it has the most sparkle. The higher lead content also makes it much more difficult to form crystal during manufacturing. More lead content, the heavier the piece. The lead also make the crystal softer and more conducive to cutting. Swarovski crystal contains approximately 32% lead to maximize refraction.\nOptical Crystal is 100% Lead Free and extremely hard. Barium oxide is used principally in optical and crystal glass instead of lime or red lead. Glass, which contains barium, is lighter than lead crystal but gives comparable brilliance due to its high refractive index. Optical Crystal subjected to tremendous pressure to ensure no bubbles, flow lines or other distortions.\nCrystal without lead is not any less valuable than full lead crystal particularly when it is thick and heavy and finely designed. In fact, clear uncut crystal has to be particularly fine quality because the flaws can not be hidden by the cuts.\nHow to Display the Crystal\nThe best way to display your treasure is to place it over a bright light against a dark-colored background, for the following reasons. An image is formed from an engraved image in a crystal when light rays are reflected by the engraved points, which by striking our eyes make the regions with many engraved points appear white, while the regions with few points would let the light rays pass through and thus appear dark. If a light-colored background is placed behind an engraved image, those light rays that passed through the crystal body would be reflected by the background and strike our eyes; we in fact see the light-colored background through the crystal regions where there are few engrave points. Obviously the contrast of the image would be reduced under the circumstance. By the same token, use of a relatively bright light increases the contrast by making the highly etched regions appear whiter.\nCare for your crystal is simple. When there is dust or finger prints on it, just wipe it using a soft cloth with some warm water or a common detergent such as a window cleaner.","domain":"optical_engineering"}
{"url":"https://gishomework.com/a-writer-uses-a-converging-lens-of-focal-length-f-12-cm/","date":"2022-08-09T16:38:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571056.58/warc/CC-MAIN-20220809155137-20220809185137-00593.warc.gz","language_score":0.9885887503623962,"token_count":111,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__144581785","lang":"en","text":"A writer uses a converging lens of focal length f = 12 cm as a magnifying glass to read fine print on his book contract. Initially, the writer holds the lens above the fine print so that its image is at infinity. To get a better look, he then moves the lens so that the image is at his 25-cm near point. How far, and in what direction (toward or away from the fine print) did the writer move the lens? Assume his eye is adjusted to remain always very near the magnifying glass.","domain":"optical_engineering"}
{"url":"https://nithyanandan.com/activities/","date":"2023-09-22T04:41:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506329.15/warc/CC-MAIN-20230922034112-20230922064112-00043.warc.gz","language_score":0.8395909070968628,"token_count":389,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__256822081","lang":"en","text":"- Senior member of Optical Society of America (OSA)\n- Early career Professional Member of “Optical Society of America” (OSA)\n- Member of Optical Society of America Member Advisory Network\n- Member of “The International Society for Optics and Photonics” (SPIE)\n- Life Member of “Optical Society of India” (OSI)\n- Member of IEEE Photonics Society\n- Life Member of “Indian Physics Association” (IPA)\n- Life Member of “Indian Laser Association” (ILA)\n- Member of European Science Forum (EUOSCIENCE)\n- Life member of Plasma Science Society of India (PSSI)\n- Nature - Communications in Physics, Nature communications\n- OSA - Optics Express, Optics letters, Josa B,\n- SPIE - Optical Engineering, Journal of Nanophotonics\n- IEEE - Photonics Technology letters, Photonics Review\n- Elsevier – Optical Communications, Optical fiber Technology, Optik, Journal of Advanced Research\n- Taylor & Francis – Journal of Modern Optics\n- Springer – Optics and Quantum Electronics\n- IOP – Applied Physics research\n- Chair of the OSA Technical Group Lasers in Manufacturing\n- Organized and chaired panel discussion-cum-networking event “Recent Trends in Laser Technology and application in Manufacturing” in the OSA Laser Congress at Vienna 30th Sep 2019.\n- Organized webinar “Recent Advances in Wire-based additive Manufacturing” on Jan 9, 2020.\n- Organized webinar “Laser aided Additive Manufacturing” on Apr 20, 2021.\n- Organized a panel discussion “Role and application of lasers in Additive Manufacturing” during CLEO 2021 on 12th May 2021.","domain":"optical_engineering"}
{"url":"http://www.boatingmag.com/gear/marine%20accessories/boatinglab-tests-night-vision-scopes?page=0,2","date":"2014-03-08T19:01:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-10/segments/1393999657012/warc/CC-MAIN-20140305060737-00051-ip-10-183-142-35.ec2.internal.warc.gz","language_score":0.8840885758399963,"token_count":405,"dump":"CC-MAIN-2014-10","global_id":"webtext-fineweb__CC-MAIN-2014-10__0__79697450","lang":"en","text":"Bushnell Equinox 4 x 40 mm Digital Monocular No. 260440\nCompact and simple to use, the Equinox is ideal for surveillance or wildlife viewing. It is the lowest-priced device tested and so lacks some of the technology and benefits of the higher-priced devices. The infrared illuminator pumped out enough added light to let us easily spot hyacinths drifting in the current, but gave less satisfaction in identifying the flame-red buoys at beyond 20 yards. This could be a function of the lower-resolution viewfinder or of less sophisticated data processing in comparison with iGen’s night vision technology.\nWins: It’s marketed to the hunter and wildlife watcher, for whom higher resolution isn’t as critical. It’s priced low and gives good service when closer-range observation is enough. The device worked best on land and gave satisfying detail at about 100 yards — its optimum, though not maximum, range.\nLosses: We found its shorter range, lower contrast and lower resolution didn’t give us a clear enough view to “capture” our buoy targets on the water.\nFinal Word: This is a great device for wildlife observation or surveillance, but we didn’t think it had the resolution or range needed by mariners.\nVision Type: Infrared-enhanced night vision\nSize: 6.5\" x 4\" x 2.4\"\nWeight (approximate): 13 oz.\nWater Shield: Water resistant\nTripod Mount: Yes\nViewer Resolution: 320 x 240\nLight Magnification: 650x\nBattery Type: 2 CR123 lithium\nBattery Life: 6 hours\nViewing Range (see a man @ ft.): 738\nImage Capture: No\nImage Storage: NA\nVideo Output: Yes\nVisual View Modes: Gray, green\nField of View: 30' at 300'\nWarranty: 1 year","domain":"optical_engineering"}
{"url":"https://solitek.eu/news/solitek-produced-its-first-solar-cells-from-recycled-materials/","date":"2020-02-20T03:12:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144498.68/warc/CC-MAIN-20200220005045-20200220035045-00377.warc.gz","language_score":0.9304670095443726,"token_count":332,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__32670591","lang":"en","text":"SoliTek produced its first solar cells from recycled materials\nSoliTek joined “Horizon 2020” 7,8 mln. Eur. value project CABRISS and produced its first solar cells from recycled materials – defected cells and its fragmentations.\nRecycling technology of solar cells and modules was created and tested with the contribution of partners from Germany “Loser Cheme”, France’s National Solar Energy Institute CEA-INES and Norway’s Independent Research Organisation SINTEF.\nAfter measuring the parameters and quality of solar cells from recycled materials, substantial quality decline, in comparison to those made in regular way, has not been found. The greatest achievement is that more than 95% solar cells materials – glass, metals, semiconductors and polymers – were successfully repurposed and the effectiveness of solar cells reaches 18% which is close to the dominating numbers in the market.\nSolitek R&D executive Julius Denafas states that it is not very easy to obtain the materials: solar modules are made to work in outside conditions for 30 and more years. Therefore to take apart a module and separate firmly laminated layers is a great technological challenge. Working with Europe’s leading laboratories, SoliTek gain a lot knowledge about the influence of materials on the final solar cells’ and modules’ quality.\nSoliTek together with its partners are one of the first in Europe to try out circular economy model in solar technologies sector. And the new tested methods will provide an opportunity to produce more ecological products with less greenhouse effect.","domain":"optical_engineering"}
{"url":"http://travisghzs888.jiliblog.com/11673691/two-facts-individuals-do-not-have-knowledge-of-with-respect-to-lasik-eye-medical-procedures","date":"2018-05-25T01:09:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866917.70/warc/CC-MAIN-20180525004413-20180525024413-00378.warc.gz","language_score":0.9566890001296997,"token_count":857,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__202635824","lang":"en","text":"The eye can be examined with relative ease regarding both its function and its structure. A functional evaluation consists of the ability to relocate the orbit and the reaction of the student to light and accommodation.\nThe function of the eye might be evaluated in numerous methods. The client may be asked to identify illuminated letter or objects of varying sizes on exactly what is known as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye might be made in numerous methods. Stress within the eyeball is determined by a \"tonometer.\" In specific illness, specifically in glaucoma, the tension in the eyeball is increased noticeably.\nIt must be well remembered that a patient with an eye issue may have other problems. Often other physical conditions are primary and impact the eye as a repercussion. The look of the eye can inform the doctor and the patient to difficulties in some disruptions of other parts of the body even before other signs provide themselves.\nOne's reliance on sight is emphasized when one deals with a short-lived or possible long-term loss of this essential sense. Thus, when corrective steps are sought, certain kinds of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some people are troubled with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to encourage decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgical treatment is another kind of vision correction. The only distinction is that with this type of surgery, one's vision is remedied completely.\nWith LASIK eye surgery, the refractive mistakes in the visit our website cornea are permanently changed. This can be done using an \"excimer laser.\"\nThe primary function of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade referred site to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to know. Most likely, the main reason that this type of eye surgery has become well accepted is since many of its cases had achieved success.\nIn spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nSince LASIK eye surgery involves the operation of the retina, which is one of the most delicate parts of the eye, the majority of people state that the operation can be extremely dangerous.\nTo puts it simply, a basic error could nearly cause an person's lifetime loss of sight. It is important to consider lots of aspects prior to deciding whether LASIK eye surgical treatment is the ideal corrective step one has to undergo.\n2. It is not a best treatment\nLASIK eye surgery may remedy your vision however it does not always mean that it can discover here offer you a twenty-twenty. Even if analytical reports reveal that 70% of the clients might have 20/20 vision, this does not necessarily imply they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the ideal eye surgical treatment the way most individuals see it\nAlternatively, the assessment of the structural part of the eye might be made in numerous ways. It must be well kept in mind that a patient with an eye problem may have other issues. Often other physical conditions are main and impact the eye as a consequence. The look of the eye can inform the patient and the physician to troubles in some disruptions of other parts of the body even before other signs provide themselves.\nLike its concrete counterpart, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://filmneverdie.com/products/nikon-tw-20-af-point-and-shoot-camera","date":"2018-08-18T14:17:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213689.68/warc/CC-MAIN-20180818134554-20180818154554-00084.warc.gz","language_score":0.8393765091896057,"token_count":331,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__110854118","lang":"en","text":"Nikon TW 20 AF Point and Shoot Camera\n*Six months warranty provided*\nSerial Number: 5239015\nBuy with a peace of mind, your worries are looked after!\nThe Nikon TW20 (or Tele•Touch 300 in America) is a compact auto focus camera released by Nikon in 1989. It was the follow-up model to the TW2. The TW20 could be switched between two focal lengths: 35 mm wide angle and 55 mm normal (\"tele\") mode. It was Nikon's first camera with a red-eye reduction mode. Read More\n- Wide angle: 35 mm f/3,8 (3 elements, 3 groups).\n- Tele: 55 mm f/5,7 (5 elements, 5 groups).\n- Sliding lens cover to turn the camera on and off. If left in tele mode, the lens will retract to wide mode after three minutes.\n- Active autofocus with AF/AE lock. Auto-exposure with auto backlight compensation.\n- Nearest focusing distance: 45 cm (wide), 59 cm (tele).\n- Built-in auto flash with auto fill flash. A button on the front prevents the flash from firing.\n- Flash range (at ISO 100): 3 m (tele), 4,5 m (wide).\n- Self-timer, with a mode for taking two consecutive shots with 5 seconds interval.\nBy Tim Dobbs Photography\nI know that its not really the camera but lens that gives the quality so I searched the web for some information on compact cameras and found a lot of recommendations for the Nikon TW20. Read More","domain":"optical_engineering"}
{"url":"https://er.riteh.hr/index.php/ER/article/view/622","date":"2022-08-18T04:47:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573163.7/warc/CC-MAIN-20220818033705-20220818063705-00238.warc.gz","language_score":0.887833297252655,"token_count":248,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__143197489","lang":"en","text":"Doppler spectrum type contribution to BER in fiber optic communication channel\nKeywords:noise, communication channel, fiber optic communication\nAbstractIntegrated ship communication systems require reliable and safe communication media that is suitable for fiber optic cables. This paper investigates such systems. The focus of this paper is on the research into the influences of different Doppler spectrum types to measure bit error rate in communications based on fiber optics. The results show that the highest BER is obtained for Asymmetrical Jakes and the lowest for the Jakes spectrum type. Although we are interested in communications aboard ships, the methodology can be applied to any fiber optic communication system.\nCopyright 2022 by Faculty of Engineering University of Rijeka, Faculty of Civil Engineering University of Rijeka. All rights reserved. This material may not be reproduced or copied, in whole or in part, in any printed, mechanical, electronic, film, or other distribution and storage media without the written consent of the publisher.\nThe journal Engineering Review’s publishing procedure is performed in accordance with the publishing ethics statements, defined within the Publishing Ethics Resource Kit. The Ethics statement is available in the document Ethics Policies.","domain":"optical_engineering"}
{"url":"https://eusano.com.au/hydrosun-750/106-hydrosun-750-infrared-lamp/operation/193-water-filtered-infrared-light","date":"2020-10-26T01:43:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107890108.60/warc/CC-MAIN-20201026002022-20201026032022-00062.warc.gz","language_score":0.8724121451377869,"token_count":479,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__27664133","lang":"en","text":"Water-filtered, infrared A (wIRA) is full-spectrum light filtered by a hermetically sealed water filter which filters out all the harmful ultraviolet (UV) light waves.\nOnly visible and the first band of infrared light, known as infrared A, is allowed to pass through the water filter.\nThe process is similar to the filtering of sun light by upper atmospheric moisture.\nMoisture in the atmosphere filters out harmful UV and far-infrared light waves\n|The water filter in the hydrosun 750 emulates the effects of amospheric moisture.|\nImages above showing treatment of shoulder, lower back and sinusitis.\nGraph above shows the light spectrum of the hydrosun 500 showing the light spectrum difference between water filtered only (blue line) and additional orange lens (orange line). The orange lens filters UV and some visible light.\nGraph above shows sunlight radiation levels during a European mid-summer sunny day (blue line). The orange line is the spectrum of water filtered infrared A (wIRA). The red line is the spectrum of a 3000 K halogen lamp with an infrared lens but without a water filter from a typical LED infrared lamp. The green line shows the spectrum of a 1750 K low wattage lamp.\nThe graph above is the extended view of the previous graph showing infrared C light sprectrum (far-infrared). The water filter has filtered out the infra B and C spectrum.\nwIRA penetrates deeper and increases the temperature in the deeper layers more effectively than conventional infrared lamps:\nThermographical comparison of skin surface temperatures in the lumbar region 12 minutes after beginning of irradiation with water-filtered infrared-A (left) and conventional infrared (right) with the same irradiance: the skin surface temperature is higher in case of irradiation with conventional infrared (presented in the thermography), while temperature in 1 cm depth of tissue is higher when irradiating with water-filtered infrared-A. So water-filtered infrared-A presents a high tissue penetration combined with a low thermal load to the skin surface.\nReference: Gerd Hoffmann Principles and working mechanisms of water-filtered infrared-A (wIRA) GMS Krankenhhyg Interdiszip. 2007; 2(2): Doc54.","domain":"optical_engineering"}
{"url":"http://clavius.org/lensflare.html","date":"2023-02-03T23:21:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500076.87/warc/CC-MAIN-20230203221113-20230204011113-00858.warc.gz","language_score":0.925905704498291,"token_count":930,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__247363087","lang":"en","text":"All but the very simplest cameras have compound lenses composed of\nseveral small lens elements. Zoom lenses and high-end professional\nlenses may have many components.\nWhen light strikes a glass surface, most of the light passes\nthrough the glass (refracts) but a little bit of it reflects off of\nit. In compound lenses, light can bounce between the lens components\nand create spots of light on the final photograph.\nIf the light source is behind or to the side, not much light from\nit falls directly on the lens. This is what you want. You want your\nlight to bounce off your subject and into your lens. But if you point\nyour lens so that the light source shines into it a little, you'll get\na lens flare.\nBut the lenses used on\nthe Apollo missions were the finest available, custom made by Zeiss. They shouldn't have shown any\nManufacturers of high-quality lenses (including Zeiss) have\ndeveloped chemical coatings which reduce the reflectiveness of their\nlenses. Under most conditions this would have reduced or eliminated\nlens flare. Even with low-end lenses, it requires a very bright light\nsource and a certain small cone of camera-and-light angles to produce\na lens flare.\nThe primary responsibility for eliminating lens flare lies with\nthe photographer, not the lens maker. The person behind the camera\nshould be aware of lighting angles and adjust the scene accordingly.\nThis is what all professional (and even most amateur) photographers\ndo, and so you rarely see lens flare in other types of photographs.\nBut the astronauts were not concerned with aesthetics. Their\noverriding goal was to document the mission, and that called for them\nto take pictures at whatever angle was appropriate. And they didn't\nhave the benefit of a viewfinder either.\nFig. 2 was taken on the lunar surface with a Zeiss Biogon lens, the\nbest available wide-angle lens. Fig. 1 shows a cross-section of a\nmodern Biogon lens for a Hasselblad SWC camera.\nFig. 1 - Cross section of the lens elements in the\nmodern Zeiss Biogon T 4.5/38, a\ndescendent of the lens developed for the Apollo missions.\nThe horizontal line represents the optical axis.\n(Courtesy Zeiss, used by permission)\nThe dotted horizontal line represents the optical axis. The\ncurved white shapes are the lens elements. Each is a precisely ground\ndisc of glass with the cross-section shown, coated with transparent\nanti-reflective coatings. The vertical lines represent the f-stop\nSome of the lens elements are fixed in position in the lens\nbarrel. Others are mounted in a moveable frame attached to the focus\nring. They can move backward and forward along the optical axis to\nchange the focus.\nIronically the Biogon lens was chosen because it was the\nwide-angle lens least susceptible to focal and chromatic distortion.\nCorrecting for that can only be accomplished by having the many lens\nelements shown in the diagram. The number of elements increases the\nchance that a lens flare will occur.\nFig. 2 displays several lens artifacts. The two very bright white\nspots at upper left are images of the sun reflected between the\nlenses. They are distorted by the curved surface, otherwise they'd\nappear circular. If you look carefully you can see a diagonal line of\nweaker reflections that includes the two bright ones.\nFig. 2 - A typical Hasselblad photograph showing\nseveral lens artifacts. (NASA: AS11-40-5873)\nThe large irregularly shaped area of increased brightness is a\nreflection of the aperture, the mechanical device adjusted by the\nf-stop control (see Exposure).\nThe streak at the upper right is probably the reflection of\nanother internal component.\nThe soft-edged patch of brightness taking up the top part of the\nsky is the image of light striking some substance on the lens. It\ncould be the anti-reflective coating, or more likely fine lunar dust\non the lens. The astronauts had to constantly brush the camera lenses\nto keep dust from accumulating on them.","domain":"optical_engineering"}
{"url":"https://linnareaphotoclub.org/digital-photography-school/tele-converters-for-dslr%E2%80%99s/","date":"2022-09-27T02:43:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334974.57/warc/CC-MAIN-20220927002241-20220927032241-00731.warc.gz","language_score":0.9262637495994568,"token_count":512,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__265737344","lang":"en","text":"Teleconverter Tip: Sometimes we push our lenses to the limit and they require a bit of assistance to get the shot we desire. A teleconverter can quickly become your best friend in such situations. A teleconverter allows you to increase the magnification of your telephoto or telephoto zoom lens by attaching to the end of the lens. A tele-converter can also be very useful in macro photography because it can enlarge the central part of the image captured by the primary lens.\nWe have a variety of tele-converters for every use and budget. Tele-converters are very popular additions to many photographer's kits, but they can come with a hidden price.\nAdding tele-converter magnification can subtract camera automation. Most digital SLR's require a maximum open aperture of at least f/5.6 in order for autofocus and autoexposure to work properly. By adding a tele-converter behind a lens we decrease the amount of light entering the camera, essentially reducing the maximum aperture. A 2X converter on a standard 75-300 f/5.6 zoom lens reduces the maximum aperture to about f/11.0.\nTele-converters have been around for decades, they do the job as advertised. However be prepared to manually focus your camera's lens with a tele-converter mounted. Under bright, sunny conditions your camera may be able to achieve proper exposure readings, but under less than ideal conditions you will need either a hand held light meter or a workaround.\nThe easiest workaround is to take a meter reading through your camera before mounting the tele-converter. Make sure that the camera's exposure mode is set to Aperture (Av) and that the reduced aperture value of the lens plus converter are dialed in. Then after mounting the converter set the camera in Manual exposure mode and dial in your previous meter reading. As the light changes the photographer may have to take new readings to compensate.\nUsing a tele-converter is a balance between choices. On the one hand a tele-converter is much less expensive than a new, longer lens. On the other hand the cost savings comes at the expense of a little less reliance on camera automation.\nEven with the loss of some automation tele-converters remain a popular digital camera lens accessory. As long as the photographer understands the limitations imposed, a tele-converter is a great way to expand the potential of anyone's lens kit.","domain":"optical_engineering"}
{"url":"https://lixuhejuginilu.sinopsms.com/the-correction-of-aniseikonia-with-opthalmic-lenses-book-22261lu.php","date":"2021-07-25T03:53:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151563.91/warc/CC-MAIN-20210725014052-20210725044052-00063.warc.gz","language_score":0.8656988143920898,"token_count":2805,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__118738248","lang":"en","text":"The correction of aniseikonia with opthalmic lenses\n- 337 Pages\n- 1.37 MB\n- 2293 Downloads\nLancaster Press , Lancaster, PA\nEye -- Diseases -- Treat\n|Other titles||Journal of the Optical Society of America.|\n|Statement||Kenneth N. Ogle.|\n|The Physical Object|\n|Pagination||p. 323-337 :|\n742 Pages3.58 MB1208 DownloadsFormat: EPUB\nGuide to rockets, missiles, and satellites.\n642 Pages0.31 MB8735 DownloadsFormat: EPUB\nYou Be the Judge\n687 Pages3.82 MB6352 DownloadsFormat: FB2\nfield guide to archeological sites of Texas\n209 Pages0.78 MB3061 DownloadsFormat: FB2\nStudies of the anionic polymerisation and copolymerisation of oG methyl styrene and isocyanates.\n574 Pages1.14 MB6999 DownloadsFormat: EPUB\ndevelopment of intersensory patterning with regards to selected spatial dimensions.\n384 Pages2.35 MB6458 DownloadsFormat: EPUB\nZero verging power which change the apparent size of the object without materially changing the The correction of aniseikonia with opthalmic lenses book of the light which enters the eye.\nLenses designed to have zero verging power for a visual distance of 75 cm. A 6% size lens was prescribed for the right eye with 2 prism diopters base in and 1 prism diopter base down. A 10 D BC spectacle lens in CR (n=) and mm center thickness was prescribed OD, matching the BC of the plano magnifier used over the patient’s contact lens correction for residual post-surgical aniseikonia (Figure 3).\nThe other half of the book is dedicated to the resolution of a very varied set of practical cases, which allow us to learn to correct aniseikonia with contact lenses, glasses or a combination of : Mo Jalie. The intraocular lens is widely accepted today for the correction of aphakia and there is increasing use of intraocular lenses of power calculated to control the refractive outcome for each individual patient.\nThe surgeon is offered the choice of intraocular lens power for Cited by: 2. Results: The mean and standard deviations of the vertical and horizontal aniseikonia in the use of glasses with stock ophthalmic lenses and with size lenses were, respectively, % ± % and. In older optometric/ophthalmic textbooks, rules of thumb have been defined to correct aniseikonia, without actually testing for the amount of aniseikonia.\nThese rules are based on Knapp's law, which deals with an image size difference as projected onto the retina in anisometropia (i.e., only optical effects are taken into account).\nAniseikonia What is aniseikonia and why should anyone care. There are two types of aniseikonia – static aniseikonia, in which the size of an image is different in each eye, and dynamic aniseikonia, in which the eyes are forced to track vertically and laterally at different rates.\nDownload The correction of aniseikonia with opthalmic lenses EPUB\nThe SHAW™ lens is designed specifically to solve aniseikonia. Static aniseikonia commonly occurs as a result. Treatment for aniseikonia usually involves corrective lenses ground to address the problem and stabilize image size.\nFor people with an existing prescription to correct refractive errors, these lenses need to be specially made to address the underlying vision problem and the aniseikonia. This post covers my notes from Chapter 21 in the System for Opthalmic Dispensing. It includes anisometropia and its associated effects (amblyopia, aniseikonia, anisophoria, and vertical imbalance), ways to correct vertical imbalance, slab off, balance lenses, and using lenses for cosmetic effects over a blind eye.\nAnisometropia: the good, the bad, and the difficult Anisometropia is, simply, a. The results clearly indicate that contact lens correction in all types of anisometropia reduces the amount of aniseikonia, so from now on don't think -- fit contact lenses.\nThe visit to the BCLA conference was supported by Bausch & Lomb Softens Ltd. References Amer, R.S. () Eikonometer Measurements in Anisometropia with Spectacles and. correction of anisometropia with glasses and contact lenses dipl.-ing.(fh) gustav pÖltner, lect.\nvdc/o, ecoo cl- institut –miller –innsbruck / austria fh-gesundheit-tirol –innsbruck / austria htl-kolleg-optometrie, hall in tirol / austria university of applied sciences –velika gorica / croatia •aniseikonia –measuring- and. The treatment plan included single vision iseikonic lenses with % size magnification over the right eye for distance use.\nFollow-up at 1 and 2 months revealed comfortable adaptation and significant reduction of symptoms. Iseikonic lenses with full correction of the aniseikonia were also dispensed; however, relief was less optimal with this.\nThus, two of four lens-related factors that contribute to aniseikonia, base curve and lens thickness, are removed from consideration. Step 2: Distinguish Axial vs Refractive Aniseikonia. Graham L. Dick, Location of conjugate points in an optical system with particular reference to the estimation of aniseikonia in the pseudophakic eye, Ophthalmic and Physiological Optics, /jtbx, 13, 2, (), ().\nSHAW lens are lenses that correct aniseikonia and anisophoria, software that calculates image difference and rotational magnification may be downloaded.\nCarol Sidofsky. August 4, Thank you very much. By “googling”, I just figured out that I have aniseikonia (smaller images seen in left eye, compared with right eye). I just had cataract. Aniseikonia is a condition that results from an excessive difference in the prescription between the eyes.\nThis causes a difference in image size perceived between the eyes from unequal magnification, and can manifest with symptoms of headache, dizziness, disorientation, and.\nContrary to Knapp's Law our results indicate that spectacles (equal retinal image size) produced significantly greater degrees of aniseikonia than contact lenses (unequal retinal image size).\nHyperopic subjects show perceptual magnification and myopes perceptual minification with the more metropic eye. Aniseikonia can appear in unilateral aphakia, meridional anisometropia, anisophoria, after monocular cataract surgery and in clients with different density of photoreceptor on the retinas.\nBracket test assesses the client’s retinal images on every eye separately but under binocular conditions. The design of iseikonic lenses is a tool given to opticians to correct aniseikonia. Aniseikonia is defined as a difference in the size and/or shape of the ocular images corresponding to.\nFree Download Ophthalmic Optics, Spectacle Lenses and Dispensing Ebook. This is intended for students and trainees in optometry, ophthalmology and opticianry.\nIncluded are 35 instructional videos and animations, color photographs and figures, and over glossary terms for reference and self-testing. The ten chapters include. Aniseikonia only requires correction if there is good correctable vision in both eyes.\nThe general rule of thumb is that if one eye is not correctable to 20/60 or better then fusion of the images will not take place anyway, so a special lens design to correct for image magnification differences is not appropriate. Treatment. Optical aniseikonia due to anisometropia can be corrected by spectacles, contact lenses or refractive corneal surgeries.\nSpectacle correction is done by changing the optical magnification properties of the auxiliary optics (corrective lenses).The optical magnification properties of spectacle lenses can be adjusted by changing parameters like the base curve, vertex distance, and.\nAnisometropia is referred to when the eyes are differently deficient. Anisometropia or non-equilibrium is understood to be the difference in vision of both eyes, which is different in type or extent. This may be a refractive anisometropia (both ey. Spectacle Lens Curvature and Thickness Spectacle Lens Aberrations, Lens Design and Aspherics Lensometry and Verification Spectacle Lens Materials, Tints and Coatings Prisms, Centration and Decentration Spectacle Magnification and Aniseikonia Multifocals Progressive Addition Lenses (PALs) The user can: Tap on the blue text to reveal glossary terms.\nAccordingly, this lens is a novel aniseikonia lens with progressive magnification with or without an optical effect of the conventional type for near vision and far vision and without an additional near correction which effects a continuously increasing image magnification of from 2% to 6% when the line of vision is lowered, i.e., this lens is.\nOphthalmic lenses dispensing, Ophthalmic lenses dispensing, کتابخانه الکترونیک و دیجیتال - آذرسا. Aniseikonia Test. The Awaya aniseikonia test in book format for near vision is based on red-green separation. The test comprises 24 test images showing red and green semi-circles.\nThe test person’s task is to compare the size of the semi-circles as they appear to one eye and to the other.\nDetails The correction of aniseikonia with opthalmic lenses FB2\n11 degrees minus aniseikonia Degrees should have been percentage, but I knew what they wanted, that the image of the right eye needed to be 11% smaller to correct the aniseikonia, or the image in the left eye 11% larger, or a combination of both.\nMy estimate of his corrected VA was OD 20/20 minus OS 20/ Aniseikonia after epiretinal peeling and lens implant can't be THAT rare.\nMy symptoms are identical to some posted here and on other threads - approx. 10% larger image size in the operated eye.\nDescription The correction of aniseikonia with opthalmic lenses FB2\nIt is not field dependent as far as I can tell, nor does it give me headaches or dizziness. The increased popularity of refractive surgery, intraocular lenses, and penetrating keratoplasty has resulted in larger numbers of anisometropes with aniseikonia. We have analyzed the effects of the new high index glass and plastic spectacle lens materials on the design of eikonic lenses.\nBuy Clinical Optics 2nd edition () by Troy E. Fannin for up to 90% off at Aniseikonia, a term coined by Dr Walter Lancaster inis an anomaly of binocular vision in which the ocular images are unequal in size, shape, or both.\n(The ocular image is the final impression received in the higher cortical centers, involving the retinal image with modifications imposed by anatomic, physiologic, and perhaps psychological properties of the entire binocular visual apparatus.).-By Ophthalmic lenses -Thick lens with parallel front and back surface that induces optical magnification without having refractive power -Designed for evaluation and correction of aniseikonia -Only the shape factor influences the total magnification of size lens.\nDeveloping multimedia applications under OS/2\n452 Pages2.90 MB3256 DownloadsFormat: FB2\nPreparing form W-2 for your household employee.\n730 Pages1.36 MB6805 DownloadsFormat: EPUB\nEarly American-Australian relations\n157 Pages4.29 MB4264 DownloadsFormat: EPUB\n565 Pages0.83 MB1745 DownloadsFormat: FB2\nThe Mountain Bikers Training Bible\n638 Pages0.85 MB4079 DownloadsFormat: FB2\nLearning Microsoft Excel 97 (Learning Series)\n204 Pages4.39 MB5259 DownloadsFormat: FB2\nLife on the Death Beat\n157 Pages1.84 MB3201 DownloadsFormat: FB2\nintroduction to psychiatry\n705 Pages2.69 MB9948 DownloadsFormat: EPUB\nold hokum bucket\n402 Pages4.47 MB8495 DownloadsFormat: EPUB\nThe fourteen points.\n479 Pages3.47 MB4670 DownloadsFormat: EPUB\nLeigh Hunt ...\n321 Pages1.32 MB4029 DownloadsFormat: EPUB\nShri Shankara Acharyas Vakyavritti\n257 Pages1.15 MB5158 DownloadsFormat: EPUB\nLardners and the Laurelwoods\n176 Pages0.28 MB1215 DownloadsFormat: EPUB\nDreams: Your Magic Mirror\n712 Pages4.87 MB771 DownloadsFormat: FB2\n415 Pages2.75 MB2918 DownloadsFormat: EPUB","domain":"optical_engineering"}
{"url":"https://www.platt.com/p/0106766/dewalt/green-line-laser-level/076174773729/dewdw088lg","date":"2023-02-02T14:41:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500028.12/warc/CC-MAIN-20230202133541-20230202163541-00603.warc.gz","language_score":0.7467479705810547,"token_count":213,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__98141243","lang":"en","text":"Green Line Laser Level\nItem #: 0106766\nCat #: DW088LG\nCall for price\n3 in stock\nGreen Line Laser Level, IP65 Water/Debris Resistant, 12V MAX Lithium Ion, Integrated Magnetic Bracket w/ 1/4\" and 5/8\" Thread.\nThe DEWALT DW088LG cross line laser level projects bright crossing horizontal and vertical lines for various leveling and layout applications. This laser maintains full brightness for visibility and extended range. A DEWALT 3 year limited warranty is included with this laser for added peace of mind.\nAlso known as: 076174773729, DW088LG, DEWDW088LG\nNo reviews for this product","domain":"optical_engineering"}
{"url":"http://www.talkvietnam.com/2013/12/opening-the-first-high-tech-eye-hospital-in-quang-ngai/","date":"2014-04-24T04:30:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00645-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.918547511100769,"token_count":158,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__39477405","lang":"en","text":"On the morning of 28 December, the high-tech Eye Hospital officially opened at 203 Nguyen Tu Tan street, Quang Ngai City. This is the first private eye hospital in Quang Ngai province.\nThe hospital has its scale of 10 beds, 04 clinical and sub-clinical wards and qualified doctors specializing eye treatment and Phaco surgery.\nThe hospital has been equipped with modern machines such as eye microscope camera to record images lesions, eye ultrasound, surgical microscopy, laser machine and Phaco surgery system, etc.\nWith these devices, the hospital will do activities of examination and treatment of the eye diseases, long-sighted and near-sighted eyes, measuring glasses, Phaco surgery, cataract treatment, peeling flesh and glaucoma treatment, etc.","domain":"optical_engineering"}
{"url":"https://www.melodysusie.com/pages/uv-lamp-tube-specification","date":"2018-11-14T01:32:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741569.29/warc/CC-MAIN-20181114000002-20181114022002-00212.warc.gz","language_score":0.8927801847457886,"token_count":235,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__195953161","lang":"en","text":"UV Lamp Tube Specification\nThe 9W 365nm UV light lamp tube is suitable for 9W, 36W and 54W UV nail lamps. U-shaped light tube is great for gel curing, and its 365nm wavelength is no harm to the eyes, although not recommended to look directly to the light. The product is uniquely packaged and 360°surrounded by foam to avoid any damages during packaging and shipping.\n1. Power: 9W\n2. Wave-length: 365nm\n3. Color: White\n4. Model: U-shape\n6. Dimensions: (16.5 x 2.5)cm / (6.50 x 0.98)\" (L x W)\n7. Weight: 35g/1.23oz Package Weight: 52g/1.83oz\n8. Material: Durable glass\n9. 100% brand new and high quality Lamp Bulb for UV nail lamp\n1 x MelodySusie 9W U-shaped 365nm Bulb for UV Nail Lamp\n* Only buy it from MelodySusie to get authentic quality product and to qualify for full after-sale service.","domain":"optical_engineering"}
{"url":"https://www.nbjiatong.com/factory-cheap-hot-simple-installation-light-fitting-60cm-led-tube-light-led-alu-plastic-tube-jiatong-jiatong-2.html","date":"2019-12-06T11:13:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540487789.39/warc/CC-MAIN-20191206095914-20191206123914-00424.warc.gz","language_score":0.6806313395500183,"token_count":439,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__177787698","lang":"en","text":"Factory Cheap Hot Simple Installation Light Fitting - 60cm Led Tube Light - LED Alu.-Plastic Tube – Jiatong – Jiatong\nFactory Cheap Hot Simple Installation Light Fitting - 60cm Led Tube Light - LED Alu.-Plastic Tube – Jiatong – Jiatong Detail:\n|Description||With internal isolated power supply; Use the most mature international well-known LED as the light source, which can ensure the led tube brightness and long lifetime, also can reduce the light decay. Use the high quality aluminum PCB for LED s better heat dissipation. High-grade PC cover with nice light transmittance (>95%), Transparent PC cover and frosted PC cover are available. No mercury, lead or other hazardous materials; no radiation, no electromagnetic radiation, no frequency flash, instant startup, no hurting eyes. 135 rotatable and lockable end capsincluding afine sacle fo|\n|Certification||CE/ RoHs/TUV||CE/ RoHs/TUV||CE/ RoHs/TUV||CE/ RoHs/TUV|\n|Installation||T8/G13 Lamp holder|\n|Material||Aluminium body, PC cover|\nProduct detail pictures:\nWe stick to our enterprise spirit of \"Quality, Efficiency, Innovation and Integrity\". We aim to create more value for our customers with our rich resources, advanced machinery, experienced workers and excellent services for Factory Cheap Hot Simple Installation Light Fitting - 60cm Led Tube Light - LED Alu.-Plastic Tube – Jiatong – Jiatong, The product will supply to all over the world, such as: Poland , Juventus , Angola , we rely on own advantages to build a mutual-benefit commerce mechanism with our cooperative partners. As a result, we have gained a global sales network reaching the Middle East, Turkey, Malaysia and Vietnamese.\nBy Michelle from Birmingham - 2015.12.30 10:21\nWe are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.\nBy Joa from Singapore - 2016.09.22 11:32","domain":"optical_engineering"}
{"url":"https://naukawpolsce.pl/en/news/news%2C88682%2Coptoelectronics-experts-working-photometer-heliospheric-research-nasa-experiment","date":"2022-12-07T23:10:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711221.94/warc/CC-MAIN-20221207221727-20221208011727-00810.warc.gz","language_score":0.8827958703041077,"token_count":751,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__65849383","lang":"en","text":"Optoelectronics experts working on photometer for heliospheric research in NASA experiment\nScientists from the Space Research Centre PAS and the Institute of Optoelectronics of the Military University of Technology will join forces in measurements necessary to design the GLOWS photometer, an instrument for studying solar wind.\nOptoelectronics experts will examine interference EUV (extreme ultraviolet) filters and optical surface coatings of the device developed as part of a NASA mission. Preliminary measurements were carried out in 2020 by Col. Professor Przemysław Wachulak (Rector-Commandant of the Military University of Technology), Dr. Andrzej Bartnik and Tomasz Fok from Professor Henryk Fiedorowicz's team.\nAccording to Dr. Maciej Bzowski, head of the GLOWS experiment team from the Department of Solar System Physics and Astrophysics of the Space Research Centre PAS, the research conducted at the Military University of Technology laboratories was necessary for the successful completion of the GLOWS experiment development phases.\nDETECTORS FOR STUDYING SOLAR WIND\nThe GLObal solar Wind Structure (GLOWS) is a photometer for fluorescent observation of heliospheric hydrogen glow in the Solar System. Data obtained thanks to the photometer will enable studying the dependencies of the solar stream on the heliographic width and the interplanetary distribution of interstellar hydrogen.\nThe GLOWS experiment is part of NASA's heliospheric research missions. The Interstellar Mapping and Acceleration Probe (IMAP) mission assumes that in 2025 a SpaceX rocket will carry the IMAP research satellite into orbit. It will be equipped with ten scientific instruments, one of which - GLOWS - is being developed at the Space Research Centre PAS in cooperation with the Military University of Technology.\nThis probe will work approx. 1.5 million km from Earth near Lagrange Point L1. This is a point in space where the gravitational forces of the Earth and the Sun balance each other. As a result, a probe placed in its vicinity can more easily maintain a constant position relative to the Earth and the Sun.\nDIFFICULT TERRESTRIAL MEASUREMENTS IN A VACUUM\nThe Military University of Technology laboratories will measure the parameters necessary to design the GLOWS photometer and test its operation. One of such parameters is called bi-directional reflection and scattering function of Lyman alpha radiation. This radiation is reflected from the optical surfaces of the photometer, covered with a special, very black material that strongly absorbs radiation. Researchers will also examine the characteristics of spectral permeability of optical filters that will be used in this device.\nIn 2020, Col. Professor Przemysław Wachulak, Dr. Andrzej Bartnik and Tomasz Fok measured the radiation transmitted by a filter intended for the selection of electromagnetic radiation near Lyman alpha, on a wavelength of about 120 nm, dispersed at different angles, on the supplied, specially blackened material.\nDr. Maciej Bzowski explains that laboratory measurements in a very far, so-called vacuum ultraviolet are difficult. They require generating the radiation itself, which can be obtained, for example, by a huge power laser pulse production of plasma, which emits this radiation. The measurement itself must take place in a high vacuum.\nHe said: “The Military University of Technology is one of the few institutions in Poland that have this type of technology and laboratory experience allowing to use it.”\nPAP - Science in Poland, Karolina Duszczyk\nkol/ ekr/ kap/","domain":"optical_engineering"}
{"url":"https://indynews.org/us-weapons-manufacturer-shows-armed-robot-dog","date":"2022-01-22T17:53:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303868.98/warc/CC-MAIN-20220122164421-20220122194421-00653.warc.gz","language_score":0.9673179984092712,"token_count":146,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__122079061","lang":"en","text":"Boston Dynamics has so far refused to allow its robot dogs to be used as weapons. The weapons manufacturer “Sword” has now developed a similar robot-like dog with a sniper rifle attached.\nThe new war machine was shown at the US military exhibition AUSA in Washington. The armed robot is able to fire precisely within a range of up to 1200 meters. The system called SPUR (Special Purpose Unmanned Rifle) is controlled remotely.\nThanks to its sensors, SPUR can be used both day and night. According to Sword, the equipment includes a thermal imaging camera, a 30‑x optical zoom, and a special ceramic coating that is supposed to offer camouflage options and protection against modern night vision systems.","domain":"optical_engineering"}
{"url":"http://ourgreenlife.info/news.php?action=show&id=9593","date":"2019-05-20T10:05:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255837.21/warc/CC-MAIN-20190520081942-20190520103942-00107.warc.gz","language_score":0.9192537069320679,"token_count":1267,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__90783575","lang":"en","text":"800mm manual focus lens - So far so good bryan adams download free\n8G ED is one of Nikon' s widest prime lens offerings is part of a lineage of fast sharp full frame primes. Replicating a similar original concept of the AF TC- 16 for the Nikon F3AF SLR camera Nikon was damn slow in introducing their various AF Nikkor lenses , this autofocus optical teleconverter is designed specifically for some of the earlier AF Nikon SLR camera models where during those days the TC- 16A was served as an interim measure to. 6 IS USM Some photographers may prefer a “ prime” lens that offers a single focal length – such as the Canon EF 35mm f/ 2 IS – to a zoom lens to ensure consistent picture quality. 86 is the shortest of any lens in its class with an f/ 4 lens speed.\nFor 17 years with the most detail , byThom has provided the best books on Nikon cameras clarity you' ll find. The Nikkor 24mm F1. Special- Purpose.\n6E FL ED VR AF- S TELECONVERTER TC800- 1. The camera has a dual Pentax bayonet lens mount. ) From time to time you find yourself reading great reviews on some lenses or see a. What was this year' s best lens? In this article which are the very best lenses you can get, I' m going to cover the Dream Team, regardless of price how stupid- heavy they are. 800mm manual focus lens. Thom should have written the Nikon manual. Special- Purpose Micro. Coming in at just under $ 800 it' s a lot of lens for the price, but does its performance live up to the expectations? Leica M lens 6- BIT CODING From the introduction of the Leica M8 digital rangefinder all Leica M lenses were with a 6- BIT code so as to tell the camera which lens was mounted. I' ve been covering these for a long time almost all of them work great on Nikon FX digital cameras. The # 1 reader comment about Thom' s books? AF- S TELECONVERTER TC800- 1. Nikon AF Teleconverter TC- 16A Introduced in 1985/ 86. Nikon has been making FX lenses since 1959. AF- S NIKKOR 800mm f/ 5. ( The Camera to Lens Compatibility Chart has been updated 12- JAN- with the latest additions to the Nikon lineup the D5 Pro FX DSLR , the long awaited D500 the DX successor of the beloved D300/ D300s. 800mm manual focus lens. We' ve shot with a lot of this year' s most interesting lenses reviewed some but we want to know your opinion. Hi Madu I' d first make sure your camera is rock- steady as any small movement will be magnified by the lens , When using a telephoto lens with that magnification cause your image to be blurry. As well as additions to established mounts this year also saw newer systems grow substantially as ' road map' lenses became a reality. Telescope Main Body I. The body is in the style of an oversized 35mm SLR camera, by some referred to as a \" Super SLR\".\nIn spite of its 200mm focal length, its telephoto ratio of 1: 0. Finderscope Bracket G. A lot of lenses were released in, for a growing number of camera systems. But carrying around a bag of prime lenses is not practical.\n800mm manual focus lens. Super- zoom lens: Canon EF- S 15 – 85mm / 3. Objective Lens ( not shown).\nThe Canon FD lens mount is a physical standard for connecting a photographic lens to a 35mm single- lens reflex camera body. The standard was developed by Canon of Japan and was introduced in March 1971 with the Canon F- 1 camera.\nFocus Formato juegos\nIt served as the Canon SLR interchangeable lens mounting system until the 1987 introduction of the Canon EOS series cameras, which use the newer EF lens mount. The Nikon F- mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single- lens reflex cameras. The F- mount was first introduced on the Nikon F camera in 1959, and features a three- lug bayonet mount with a 44 mm throat and a flange to focal plane distance of 46. The company continues to use variations of the same lens mount specification for its film and.\nManual focus Itunes downloaded\nRECOMMENDED for its outstanding optical and mechanical quality; a bargain for professional sports, portrait, nature and landscape use. for all formats, including 35mm and full- frame. Metal 72mm filter thread.\nLens Jaguar manual\n/ 1, 412g with tripod offers 534 canon lens to pentax adapter products. About 55% of these are lens adapters, 35% are camera lens, and 1% are machining.\nA wide variety of canon lens to pentax adapter options are available to you, such as free samples, paid samples. 5 Fisheye Lens for Nikon D7500, D7200, D7100, D7000, D5500, D5300, D5200, D5100, D3400, D3300, D3200 and D3100 Digital SLR Cameras.\nINSTRUCTION MANUAL FOR 804AZ3 Alt- Azimuth Mount: AZ3 Optical Tube: 80mm/ 400mm Telescope Main Body Piggyback Bracket Finderscope Finderscope Bracket Dust Cap / Mask ( Remove before viewing) Finderscope Allignment Screw Dew Cap / Sun Shade Focus Locking Screw Focus Tube Objective Lens. View and Download Nikon D60 user manual online. Northern Industrial Tools Digital Camera User Manual. D60 Digital Camera pdf manual download. Also for: B0012ogf6q - d60 10.\nLg realtek audio driver xp download\nDownload new windows live messanger\n2mp digital slr camera, D60 body only black & gold - d60 10. 2mp digital slr camera, 25438, 9609 - d60 digital.","domain":"optical_engineering"}
{"url":"https://www.luraline.lighting/what-s-new.html","date":"2018-06-19T19:33:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863119.34/warc/CC-MAIN-20180619193031-20180619213031-00084.warc.gz","language_score":0.9045361876487732,"token_count":143,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__85832909","lang":"en","text":"Luraline Lighting continues to incorporate the latest LED technology into existing fixtures while adding and refining our product line. Check this section of our website for the latest news from Luraline Lighting.\nTurboLED Light Source - Color\nTurboLED offers the full spectrum of color temperatures, rendered with LED technology that creates rich, vibrant, and consistent lighting to suit any specification requirement.\nTurboLED Light Source - Performance\nTurboLED is a new high-performance light source from Luraline Lighting that will completely change the way you look at lumens. With TurboLED you can decrease the cost of each lumen by as much as 50% over typical LED light sources while improving overall light quality.","domain":"optical_engineering"}
{"url":"http://alberta.cleverdir.com/showpage.php?i=10456&c=1","date":"2018-10-16T10:18:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583510749.37/warc/CC-MAIN-20181016093012-20181016114512-00174.warc.gz","language_score":0.8549032807350159,"token_count":433,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__16870322","lang":"en","text":"| Wuhan Lead Laser Co.,Ltd |\nWuhan Lead Laser Co. , Ltd is a high-tech corporation located in Optics Valley of China, Wuhan. ...\nWuhan Lead Laser Co.,Ltd - Alberta\nWuhan Lead Laser Co., Ltd is a high-tech corporation located in Optics Valley of China, Wuhan. The main products are Diode-pumped Large Scale Laser Sub-surface Engraving Machine, 3D Portrait Laser Sub-surface Engraving System, Green Laser Marking Machine, Diode End-pumped Laser Marking Machine, Special Laser Marking Machine, Diode Side-pumped Laser Marking Machine, Laser Online Marking Machine and CO2 Laser Marking machine. The self-developed Engraving Machine and the Diode End-Pumped Marking Machine are keeping ahead of the world. The products are exported to more than 30 countries world wide.\nThe company owns powerful R&D strength and has gained several patents in the field of laser application. In the company, there is an integrative team consists of a large number of hi-tech professional and laser experts. At the same time, based on domestic and international cooperation with Laser Scientific Research Institutes in China and the laser companies in Occident, Lead Laser develops and manufactures advanced laser machines to meet the varying market demand.\nThere is a good news to announce~\nOur company developed a Green Laser Subsurface Engraving & Flying Surface Marking Machine, it specially used to engrave anti-fake label inside glass bottles, without any touch on the bottle surface. Really guarding against counterfeit for wine, perfume etc.\nThis anti-fake technical is unique in the world recently...\n|Address:||No. 5-2-4098, Guandong Technological & Industrial Park, Optics Valley of China , Wuhan , China (430074)|\n|Phone:||86 27 87531790-604|\n|Fax:||86 27 87531579|\n|Cell Phone:||86 13397198710|","domain":"optical_engineering"}
{"url":"http://knightsbridgemechanical.com/clark-c60-70-75l-80d/","date":"2024-04-19T15:55:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817438.43/warc/CC-MAIN-20240419141145-20240419171145-00643.warc.gz","language_score":0.9019813537597656,"token_count":336,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__71248087","lang":"en","text":"Ergonomics & Visibility\nThe driver’s workstation is designed ergonomically and customised to the driver’s requirements. Due to the excellent view in all directions, the driver can fully focus on the job. This leads to optimal conditions for high productivity during the entire operating period.\nThe CLARK SafeView@360 is a 360° camera system that consists of four digital cameras, which give a complete 360-degree view to the driver. In this way, the driver has an excellent image of their surroundings, which increases safety during operation. By using digital cameras, it is also possible to generate a view from the bird´s eye perspective. The four individual cameras are used to form a common image in real-time. Especially the fork tips and the counterweight, these are precisely integrated into the seamless image displayed. Thanks to this perfect all-round visibility the application in narrow or unclear areas can be done more safely and quickly.\nModern Kubota Diesel Engine (55.4 kW)\n• Complies with EU emission level 5 • Environmentally friendly • Maintenance-friendly • Robust and reliable • Low noise • Fully electronic motor control • Common rail injection optimized the combustion and reduces the fuel consumption\nProven PSI LPG Engine (4.3 L, 58.7 kW)\nLow-fuel high-performance industrial engine.\nRobust Upright And Fork Carriage Structure\n• Two primary cylinders in triplex uprights ensure a wide vision window with maximum view • Robust 6-roller fork carriage • Adjustable canted load rollers • Optimum load distribution and low clearance","domain":"optical_engineering"}
{"url":"https://friskylighting.com/product/g95-diamond-glass-led-edison-light-bulb-220v-3w-8-pack/?c=72e1ba2726d6","date":"2020-12-02T12:32:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141708017.73/warc/CC-MAIN-20201202113815-20201202143815-00069.warc.gz","language_score":0.8233193755149841,"token_count":164,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__85737987","lang":"en","text":"G95 Diamond Glass LED Edison Light Bulb 220V 3W 8 Pack\nBenefits of LED filament lamps:\n• Energy-saving, low heat, low power consumption, stable performance.\n• Long life span, it can last 30000 hours.\n• LED filament lamps offer aesthetically appealing designs combined with quality and energy efficiency.\n• Perfect blend of traditional and cutting-edge technology.\n• Great reducing carbon emission, environmentally friendly.\n• With traditional incandescent lamp design, it can be easily accepted by common people.\n• With 360° beam angle, the filament bulb can give out light omnidirectional.\n• No radiation, no mercury, instant start, no flicker, no harm to human eyes.\n• Does not contain lead, mercury and other pollution elements.","domain":"optical_engineering"}
{"url":"https://beststreetphotos.com/different-type-of-lens-for-camera/","date":"2021-01-23T11:33:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703537796.45/warc/CC-MAIN-20210123094754-20210123124754-00626.warc.gz","language_score":0.9428513646125793,"token_count":661,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__71975802","lang":"en","text":"There is a variety of different typ\nBecause of the need to have fast shutter speed, it is important to be able to carry the camera around in one hand. If you can do this, you will have more flexibility when taking photos. A tripod can make taking pictures more stable.\nWhich Is The Best Type of Lens For Camera\nThe Zoom lens is the fastest. It has a maximum zoom that is about two times. These lenses also have a faster aperture and are easy to use in low light conditions. These lenses also provide higher contrast.\nThis type of lens for camera helps you focus on an object in your photo, which is impossible with other types of glass. By using a zoom lens, you can take multiple shots of a subject. You can choose between wide-angle and telephoto.\nThe ultra-wide-angle lens enables you to capture a wider angle in the same frame. This provides an excellent opportunity to show off your personality or to show off your artistic side. These types of lenses are perfect for portraits.\nChoose The Correct Type of Lens For Camera\nAnother advantage of this type of lens for the camera is that you can choose from a wide-angle and ultra-wide angle. The ultra-wide-angle offers a broader range of perspectives. This is perfect for those who want to capture something from every aspect.\nThe focal length is the distance between the center of the lens. The shorter the focal length, the closer the picture is. It is ideal for sports photographers who want to get a close-up picture. The long focal length is excellent for people who want to get a full view of their subject.\nThe depth of field is the type of lens for a camera that provides a wide or a shallow depth of field. The effect is a blur that reduces the possibility of a photograph that is not crisp. Usually, the longer the lens, the more blurry the result.\nConsider The Angles\nBecause of the choices of focal length and depth of field, the photographer must decide which type of lens for the camera is suitable for their style. For instance, if you like taking pictures of sunsets, you need to select a telephoto lens. Similarly, if you love taking pictures of cityscapes, you will want to consider long telephoto lenses.\nThe wide-angle is similar to the ultra-wide-angle in that it enables you to create a good blur. The problem with this type of lens for the camera is that you cannot tell if a landscape image is blurry because of the lens or because of the lighting. The focal length of the wide-angle lens is shorter than the telephoto.\nThere are no instructions on how to choose which type of lens for the camera is best for you. The best thing to do is to pick one out of the selections. You may find that you need to experiment with the different types of lenses for the camera to find the one that works best for you.\nNo matter what type of lenses for the camera you choose, it is important to understand how they work and what their purpose is. This will help you achieve the desired results when you are taking pictures. As you go along, you will see that it is easier to experiment with different lenses than you thought.","domain":"optical_engineering"}
{"url":"http://miltecuv.com/","date":"2020-06-01T21:23:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347419639.53/warc/CC-MAIN-20200601211310-20200602001310-00264.warc.gz","language_score":0.951664388179779,"token_count":127,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__117687560","lang":"en","text":"UV Curing Systems\nThe World’s Leading Manufacturer of High Performance UV Curing Systems\nMiltec UV is a UV Equipment manufacturer that is dedicated to building long term relationships with our domestic and international customers by providing high quality UV curing systems at reasonable prices and with excellent customer service. Miltec UV provides global leadership in over 30 diverse manufacturing market segments by providing high quality, custom-designed UV Curing systems as well as UV replacement parts for Miltec and various other OEM systems. Miltec is uniquely positioned as one of the only UV equipment manufacturers in the world that designs and produces arc, microwave powered and UV LED systems.","domain":"optical_engineering"}
{"url":"http://www.skphotonics.com/htm/mnu2-.htm","date":"2019-08-17T12:43:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313259.30/warc/CC-MAIN-20190817123129-20190817145129-00533.warc.gz","language_score":0.7931627631187439,"token_count":181,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__226504154","lang":"en","text":"|The Mighty Light is a compact white light source that is ideal for microscopy, spectroscopy, machine vision, and spectral imaging applications. The Mighty Light integrates a tungsten halogen bulb and power supply with a control board that delivers uniquely low-noise output. A series of pre-aligned bolt-on accessories allow the broadband output to be coupled into a fiber or fiber bundle, homogenized and collimated, directly coupled into a microscope, or integrated with our unique Wavelength Selector devices to create a tunable, monochromatic beam.\nKey product advantages:\n- Compact footprint (125 x 75 x 70 mm)\n- ~ 2 watts of output\n- Low noise ( ±0.5%) output\n- Broad continuous spectrum 350 nm ~ 2.5 μm\n- Color temperature ~ 2900 K\n- Bolt-on options ? no alignment required","domain":"optical_engineering"}
{"url":"http://juliantanase.com/olympus-is-1000-old-companion/","date":"2020-05-28T13:11:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347396089.30/warc/CC-MAIN-20200528104652-20200528134652-00248.warc.gz","language_score":0.9365249276161194,"token_count":372,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__62769179","lang":"en","text":"I have had this camera since 2001, bought from jessops in the UK. Very good camera, sturdy as hell, built as a brick (and heavy as one too).\nThe Olympus IS-1000 (aka L-1000) is an autofocus 35mm single lens reflex camera with built-in 4× zoom lens. It was the first in Olympus‘ iS series of so-called ‘Zoom Lens Reflex’ cameras. The lens is a multi-coated 35-135mm f4.5/5.6 lens with 16 elements in 12 groups and including an ED (Extraordinary Dispersion) objective lens element, providing sharp and contrasty images of a quality approaching that of Nikon prime-lenses. The autofocus is a passive CCD line sensor. A “Power Focus” button allows manual focusing by means of electronic buttons.\nThis camera and the others in its range have a unique built-in flash, comprised of two flash tubes (the smaller of which provides a series of low-power pulses to reduce red-eye) and a very intelligent TTL flash control system based on distance from the subject rather than on reflected light. This flash system can’t be confused by dark subjects on a dark field, light subjects on a light field, etc.\nFurther, cameras in the early IS-series (IS-1000, IS-2000 and IS-3000) were capable of intelligently combining the built-in flash and the unique G-40 external flash (for example, handling direct fill-flash using the on-board flash unit and bounce flash using the G-40’s swivelling/tilting head) – a feature very far ahead of its time and not to be seen until the most recent crop of high-end Digital SLRs.","domain":"optical_engineering"}
{"url":"https://gecko.rent/en/jason/booking","date":"2023-12-02T18:39:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100448.65/warc/CC-MAIN-20231202172159-20231202202159-00860.warc.gz","language_score":0.7706500887870789,"token_count":204,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__294573903","lang":"en","text":"Canon f/2.8 EF 70mm-200mm Telephoto lens\n$77Canon EF F/2.8 70MM-200MM ISII Telephoto Lens : The Canon EF IS II USM is a 70 - 200 mm f/2.8L telephoto zoom lens that captures detailed close-ups of small and distant objects. With a construction of 23 elements in 19 groups, this Canon camera lens effectively reduces aberrations in your photos. This 70 - 200 mm f/2.8L lens’s bright maximum aperture of f/2.8 allows you to take stunning shots even in low-lit conditions. Moreover, an image stabilization function in this Canon camera lens enables you to shoot sharp photos without requiring a flash or tripod. You can precisely control the amount of light passing through this Canon camera lens, using its eight diaphragm blades. Moreover, the Canon EF IS II USM easily accommodates 77 mm filters that offer protection from dust and scratches.","domain":"optical_engineering"}
{"url":"https://www.newsch.net/intechopen-author-gerard-mourou-wins-nobel-prize/","date":"2023-12-07T06:37:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100650.21/warc/CC-MAIN-20231207054219-20231207084219-00667.warc.gz","language_score":0.9526128768920898,"token_count":612,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__167184390","lang":"en","text":"IntechOpen Author, Gérard Mourou, Wins Nobel Prize\nAll IntechOpen’s authors are exceptional scientists and researchers who work to improve the world around us. This year, one of their authors has been significantly recognized for his work and achievements in the field of physics, Gérard Mourou.\nTogether with a Canadian physicist Donna Strickland and an American physicist Arthur Ashkin, he’s received the 2018 Nobel Prize for Physics. The prize was awarded for the invention of chirped pulse amplification (CPA), which is a method of pulses of laser light of high power and short duration.\nAbout Gérard Mourou\nBorn in France, Gérard studied physics at the University of Grenoble and earned his doctorate at the Pierre and Marie Curie University in Paris.\nHe is a professor and a member of the Haut Collége at the ÉcolePolytechnique. In 1977, he became a professor at the University of Rochester where he and Donna Strickland produced their Nobel winning work in the Laboratory for Laser Energetics.\nIn 1990, Mourou became the founding director of the Center for Ultrafast Optical Science at the University of Michigan.\nBetween 2005 and 2008, he was a director of the Laboratory of Applied Optics at the ÉcolePolytechnique and he managed to advance laser science in Europe by proposing Extreme Light Infrastructure.\nIn 2015, Gérard Mourou went to Bucharest for the Third Christmas Lecture where he presented “Breaking Through the Unknown: Extreme Light, Science to Art”.\nAs an author at IntechOpen, Mourou contributed a chapter to “Second Harmonic Generation Under Strong Influence of Dispersion and Cubic Nonlinearity Effects”.\nGérard’s Work and Achievements\nBy stretching laser pulses in time to reduce their peak power, then amplifying them and compressing them, Gérard Mourou and Donna Strickland have created ultrashort high-intensity laser pulses that don’t destroy the amplifying material.\nThis work allows for extremely precise cuts to be made, and the technique is already being used for corrective laser eye surgeries. It’s useful in scienceand medicine, and it is expected to also have a major impact on cancer therapy and other physics research in the future.\nThroughout his career, Gérard Mourou has received many awards for his research and work. Besides the Nobel prize, in 1995, he’s received the R. W. Wood Prize by the OSA, and in 1997 the SPIE Harold E. Edgerton Award.\nHe’s also been the recipient of IEEE LEOS Quantum Electronics Award, the Willis E. Lamb Award for Laser Science and Quantum Optics, the Charles Hard Townes Award, and Frederic Ives Medal.\nPreviously he’s published with IntechOpen, making his work highly accessible to the public throughout his career.","domain":"optical_engineering"}
{"url":"https://www.executivehirenews.co.uk/Doosan-launches-transparent-bucket/3229","date":"2021-08-01T23:52:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154277.15/warc/CC-MAIN-20210801221329-20210802011329-00664.warc.gz","language_score":0.9430035352706909,"token_count":143,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__274115325","lang":"en","text":"Doosan Infracore Europe has launched what is apparently an industry first - a ‘transparent bucket’ for its wheel loaders.\nThe new device is not truly transparent, of course, but employs top and bottom cameras to provide drivers with a clear view of blind spots in front of the machine. The system captures images, which are then displayed on the cab monitor in real time.\nThe area in front of the machines has long been an area of concern in terms of safety, which the new system now mitigates. Another advantage is that it can improve work efficiency by providing a forward-view during loading/unloading or when carrying materials such as aggregates, sand and soil.","domain":"optical_engineering"}
{"url":"https://automarkco.com/lasers/","date":"2024-02-21T08:26:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00395.warc.gz","language_score":0.9191726446151733,"token_count":886,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__102293209","lang":"en","text":"Laser Engraving Systems\nWhat are LASERS?\n“LASER” is an acronym for Light Amplification by Stimulated Emission of Radiation. The radiation in this case is a wavelength of light and that light is transferred into a coherent monochromatic beam of light energy. Think of the beam of light as one wavelength of light intensely bounced back and forth between a source and then shot out in either a continuous or pulsed wave. We isolate the wavelengths by shooting the beam of light through different mediums.\nThese mediums produce common wavelengths, such as 355nm (UV), 1064nm (Fiber), and 10,600 (CO2). Different wavelengths are absorbed by different materials. Each laser has a laser source that allows light to pass through it amplifying the effect. The photons are then bombarded onto the surface of the product where they burn/etch the image. LASERS are considered permanent and are an excellent way to quickly apply an image that is counterfeit resistant.\nparts of a laser\nThree of the critical components of the laser are the laser source, the galvanometer (also called a galvo), and the lens. The source builds the energy and then shoots the energy into the galvanometer. The galvanometer redirects this energy through a series of rotating mirrors onto the part through the lens. To the left we can see the power supply for the galvo along with the red light generator. The red light generator allows a separate laser image to be cast onto the part before the part is marked to insure the mark is exactly where the operator wants it.\nOn the right is an image of the galvo with the lens removed and the laser moving the galvanometer’s mirrors quickly in rapid succession over the part.\nDifferent Wavelengths for Different Substrates\nMaterials absorb different wavelengths at different rates. This means one source (or one laser type) could mark one substrate but might not mark another. For example, clear substrates and ceramics usually do not react to fiber lasers but usually mark easily with UV lasers.\nSoftware Equals Flexibility\nOur easy-to-use software is based on EZCAD which allows users to import graphics, create shapes, write words, and adjust text size and font to create dynamic imaging and so much more. This means images can change on-the-fly. All of our laser systems come pre-loaded with the ability to mark bar codes, QR codes, micro-QR Codes, automatically count items, time stamp, increase serial numbers, and more.\nWant to place a QR code directed to a specific website? It is easy with software that does the heavy lifting for you. Just type and go.\n3D Capabilities and Rotational Printing\nRound parts add a degree of difficulty when printing due to the Z-axis (height) changing. There are two ways to combat this. Using a 3D laser will allow a 90-degree portion of the round part to be printed on without rotating it. Our software provides rotational printing capabilities straight out of the box. Hook up a chuck adjustable rotary to allow automated part rotation for easy rotational printing.\nLaser safety is essential. Improper use can result in damage to operator skin and eyes. Marking lasers are all classified as Class 4 lasers, which is the highest classification of lasers, and can cause devastating eye damage, significant skin damage, and ignite substrates.\nAutomark lasers can be manufactured with FDA certified enclosures to insure a Class 4 laser is reduced to Class 1, which is the safest type of laser possible. It is important to discuss your safety concerns with your Automark representative prior to purchasing.\nNeed Something Custom?\nHave a special project or need special considerations? We have you covered. Whether it is robotic integration, like the machines shown here, or special fixturing, we can build and assemble a laser system to fully accommodate your group’s requirements. We begin by learning about the integration of the product and then build it, virtually, for your approval before we have it built, physically. The result?\nA one-of-a-kind solution specially designed for your unique application. The cost? The prices of these custom systems are very comparable with standard models. Contact us today to learn how we can help your group.","domain":"optical_engineering"}
{"url":"http://www.4d.mk/DetalInfo.php?id=47&lang=","date":"2023-12-03T01:31:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100476.94/warc/CC-MAIN-20231202235258-20231203025258-00682.warc.gz","language_score":0.9210811853408813,"token_count":110,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__64771499","lang":"en","text":"Photography is the art, science and practice of creating durable images by recording light or other electromagnetic radiation. Shooting can be chemical, using a light-sensitive materials, such as photographic film, even by electronic way, using the image sensor.\nDigital photography, unlike the classic photography, does not use film, but generates an image through the electronic sensor as a set of binary data. This allows the preparation and editing of imagesto be made by a computer . Today, digital cameras except saving a picture, can also record video and sound data.","domain":"optical_engineering"}
{"url":"https://frame.work/blog/1080p-webcam","date":"2023-09-21T08:15:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233505362.29/warc/CC-MAIN-20230921073711-20230921103711-00495.warc.gz","language_score":0.9256067872047424,"token_count":431,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__108992365","lang":"en","text":"When we started designing the Framework Laptop in 2019, building in a great webcam was near the top of our list of priorities. Laptops have been stuck with low resolution cameras with tiny sensors delivering smudgy, grainy images for far too long. The huge increase in remote working and video conferencing in 2020 brought that problem into even clearer focus. We’re happy to share that we’ve achieved a substantial improvement in image and video quality by developing and incorporating a custom 1080p 60fps camera into the Framework Laptop.\nWe designed the camera system over the course of a year with Partron, a South Korea-based electronics manufacturer with deep experience in camera modules and sensors. Mass production is done at Partron’s Vietnam facility in a highly automated clean room environment.\nWe integrated a 1/6\" OmniVision OV2740 sensor, which is significantly larger than the 1/8\" or 1/10” sensors typical in notebooks. This allows for bigger 1.4 μm pixels to collect more light while enabling 1920x1080 resolution. This is paired with a wide 80° diagonal f/2.0 four element lens, using a blue glass IR filter for improved color performance. The sensor interfaces to the mainboard through a Realtek RTS5853 camera controller that supports advanced auto exposure and temporal noise reduction. All of this results in sharper images that look great over a broad range of lighting conditions.\nAs we studied how people use video conferencing, we knew that guaranteeing privacy was also crucial. To deliver on this, we built hardware privacy switches into the Framework Laptop for both the camera and the microphones. When the corresponding switch is turned off, the camera or microphones are electrically disconnected, fully blocking them from being accessed. The camera LED is also hardware controlled, ensuring that the image sensor can’t be powered without the indicator turning on.\nWe’re excited to enable the future of work with a great camera built directly into a great laptop, and we’re looking forward to hearing your feedback on it when we ship later this year.","domain":"optical_engineering"}
{"url":"https://168.164.73.34.bc.googleusercontent.com/2018/09/03/new-canon-full-frame-mirrorless-camera-details-leakd/","date":"2024-04-19T09:49:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00338.warc.gz","language_score":0.9587236046791077,"token_count":335,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__131048824","lang":"en","text":"Nikkon just announced first mirrorless Z-series cameras and we all know it’s just a matter of time before Canon responds with something similar. It seems like the wait won’t be that long, as Nokishita and Canon Rumors have posted leaked images of the camera, its spec sheet, and details of what appears to be a lens lineup for the EOS R camera.\nThe EOS R is a 30.3-megapixel full-frame camera that comes with a horizontal-swivel touchscreen. Other specs of the EOS R includes being able to shoot 8 frames per second in continuous mode. You only be able to 4K videos at only 30FPS or 120FPS when you step down to 720. Other notable features include an OLED viewfinder with about 100 percent coverage.\nThe EOS R will come with 4 initial lens lineup of which two of them are zoom lenses, buyers will have the option to choose between the 24-105mm f/4L IS lens for your telephoto shots, two primes (35mm f/1.8 IS and 50mm f/1.2L) and a 28-70mm f/2L. For those of you who would like to use their old lens format, it seems like Canon is also launching three EOS lens adapters, rumored to have an option with a control ring and another with a drop-in filter mount.\nAccording to Canon Rumors, details, Canon is slated to unveil the EOS R this Wednesday, September 5th, I guess that’s when we’ll get the pricing info.","domain":"optical_engineering"}
{"url":"https://diopta.me/contact-lenses/?lang=en","date":"2023-02-06T15:20:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500356.92/warc/CC-MAIN-20230206145603-20230206175603-00307.warc.gz","language_score":0.9099241495132446,"token_count":253,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__13861565","lang":"en","text":"PMMA lenses are conventional hard contact lenses made from a transparent rigid plastic material called polymethyl methacrylate (PMMA).\nPMMA lenses have excellent optical properties, but they do not allow for oxygen transfer to the cornea. The only way for this vital element to reach the cornea is for tears to wash underneath the lens with each blink. In order for this blink-induced, tear-pumping action to occur, PMMA lenses have to be made relatively small in size.\nPMMA lenses have been replaced by gas permeable lenses and are rarely prescribed today.\nGas permeable (GP) contact lenses are rigid lenses made of durable plastic that transmits oxygen. Most GP contact lenses incorporate silicone, which makes them more flexible than PMMA. Silicone is oxygen permeable, so oxygen can pass directly through GP contact lenses to keep the cornea healthy.\nThey are designed for patients with keratoconus and irregular astigmatism and can be used to correct any type of refractive error. GP contacts are the best choice for individuals for whom soft contacts don’t produce the desired visual acuity.\nIt usually takes some time for eyes to adjust to gas permeable contact lenses when users first start wearing them.","domain":"optical_engineering"}
{"url":"https://info.carsondunlop.com/blog/bid/320873/Do-Thermal-Imaging-Inspections-Live-Up-To-The-Hype","date":"2023-06-01T05:44:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00563.warc.gz","language_score":0.9410734176635742,"token_count":580,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__42618180","lang":"en","text":"Technology can be exciting, flashy, and neat – but is it always necessary? Hundreds of thousands will stand in line for hours for the newest smartphone. They spend a lot of money and time making sure they have the most recent upgrade. And this desire for new technology isn’t exclusive to cell phones and computers, people want the latest equipment in most areas.\nIn the Home Inspection industry, one of the more advanced pieces of technology that can be used is an infrared camera to complete Thermal Imaging Inspections. But is this tool and Thermal Imaging Inspections really worth the hype, or are people just fawning over the latest gadget?\nA Thermal Imaging Inspection is a non-invasive process that uses an infrared camera to measure and record the surface temperature of materials. Although this technology does let you see more than the naked eye, it is not x-ray vision and will not let you see through walls. Instead, infrared cameras capture images that use a colour scale to show temperature differences on surfaces.\nAt Carson Dunlop, we understand that water leakage is a significant concern for our clients. In fact, over 35 years, we have learned that water is the single biggest enemy of homes. This is why we have tailored our Thermal Imaging Inspections to look for concealed water problems. During our Thermal Imaging Inspections, our Home Inspectors will use infrared cameras to look for hidden moisture in the most vulnerable areas, with specific focus on basements, areas around and below doors and windows, and ceilings below roofs and bathrooms.\nInfrared cameras allow Home Inspectors to look beyond physical elements. Homes that appear perfect can have significant issues – you just have to know where to look. For example, while performing a New Construction Inspection for a client before their Tarion Warranty expired, we used an infrared camera to investigate the ceiling below the home’s whirlpool bath.\nTo the naked eye, the ceiling looks immaculate: no staining, no bubbling, no indication of any problems.\nHowever, with an infrared camera, the leakage is clearly evident.\nOur moisture meter confirms the presence of water in the ceiling, saving the new homeowners a lot of hassle.\nImagine how bad this leak could have become! A whirlpool tub holds a lot of water. There was no visible evidence, but we discovered the problem during the Thermal Imaging Inspection. (It turns out that their neighbour also had a leak under their home’s whirlpool tub. But they found it the hard way).\nNew technology is not always worth the hype, but in the case of infrared cameras and Thermal Imaging Inspections, it is. We can’t tell you whether the next smartphone will be a great investment, but we know that a Thermal Imaging Inspection is. To learn more, please click here or call 800-268-7070.","domain":"optical_engineering"}
{"url":"https://www.dereike.com/news/laser.html","date":"2022-08-08T10:29:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570793.14/warc/CC-MAIN-20220808092125-20220808122125-00182.warc.gz","language_score":0.9182891249656677,"token_count":608,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__64975310","lang":"en","text":"The functions and applications of vortex air pump are very rich, among which the functions of both blowing and suction are very familiar to all of us. Therefore, there are many people called vortex air pump, which is also called side channel blower and flow measuring fan in foreign countries. Many terms are felt by the application occasions, but they are actually a product.\nUsing in the laser equipment, is to take advantage of the product's high negative pressure, high flow, lightweight structure, low noise, oil-free maintenance free and many other traditional vacuum pump incomparable characteristics. As a result, it is used more and more widely in the field of laser equipment. Laser is a new light source in 1960s. Because of its good directivity, high brightness, monochromatic, narrow frequency range, and can concentrate high energy in a narrow direction, it is widely used in the automatic processing of various materials. Now the developed laser technology is mainly used in rapid prototyping, cutting, welding, carving, drilling and other metal or non-metallic materials processing.\nHigh efficiency automatic laser equipment composed of laser technology and computer numerical control technology can be divided into YAG laser marking machine, semiconductor laser marking machine, CO2 laser marking machine, optical fiber laser marking machine, laser engraving machine, laser welding machine, laser cutting machine and laser dicing machine. The working principle of laser equipment is basically the same: the graphics to be produced are traced in the computer through the computer software CorelDRAW or other software and stored in PL format. When the PL file is opened with the special software for laser equipment, the graphics of the file will be displayed on the screen; the equipment can mark or cut the material according to the graphic file of the computer.\nVortex air pump is the core component of laser equipment, its quality directly affects the quality of finished products. Therefore, there are special vortex air pumps on laser equipment. The vortex air pump uses negative pressure adsorption, and its specific role in laser equipment is roughly similar. Take laser engraving machine as an example: in the cutting process of laser engraving machine, rubber plate or paperboard should always keep original The position, can't move, otherwise come out of the finished product in accuracy and precision will have problems, vortex air pump here plays a fixed rubber plate or cardboard role. The suction generated by the vortex air pump (side channel blower\n) is used to fix the object to be cut, so that the object to be cut is not offset in the cutting process, so as to ensure the accuracy and precision of the cutting height and improve the working efficiency.\nDereike Intelligent M&E Equipment\nOur's main products:Side channel blower,Turbo blower,High speed blower,Belt drive type blower,Ring blower,Anti-explosion blower,air knife,air filter,vaccum filter,muffler,pressure relief valve.etc.","domain":"optical_engineering"}
{"url":"https://www.chelsom.co.uk/about-us/technology/","date":"2019-06-27T10:38:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560628001089.83/warc/CC-MAIN-20190627095649-20190627121649-00057.warc.gz","language_score":0.9106365442276001,"token_count":673,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__111598159","lang":"en","text":"Whereas aesthetics has primarily driven the pace of change in decorative lighting designs over the years, rapidly advancing technology has become equally important in ensuring specifiers are working with the most up to date products. Chelsom operate rigorous testing procedures to select the best performing LEDs and work only with the most reputable LED chip and retrofit lamp manufacturers. When testing and selecting LED chips, the following criteria are considered:\nAt Chelsom factories in the UK and China, continual investment means the latest manufacturing and testing equipment drives on the quality of the product. In-house photometric testing guarantees colour temperatures and Colour Rendering Index (CRI). Operating in the global marketplace, Chelsom wire and test to all international standards ensuring access to every international market. Both our UK and Chinese factories have the international approvals shown right and are regularly audited to ensure continuous compliance.\nAlthough the standard Chelsom range offers a wide selection of integral and retrofit LED light sources, Chelsom also have significant bespoke capabilities allowing conversion of standard light sources to bespoke technology requirements to match the more complex dimming systems. For example, Chelsom can operate with colour temperatures ranging from 2200K to 4000K and with 80 to 95 CRI.\nTo ensure optimum ambience within any interior scheme, light levels should be controllable through dimming systems. Dimmable lamps can be operated from rotary dimmer switches within the product itself or from remote wall-mounted control panels. There exists an extremely wide range of lamp dimming protocols but the crucial issue is ensuring compatibility between lamp type, control gear and the dimmer itself.\nChelsom are experts in creating successful dimming, constantly researching new methods and technologies to continuously improve the technical offer. For standard products, Chelsom will have carried out thorough long-term testing to ensure optimum lumen output, best lifetime performance and minimal heat output. For bespoke designs, the Technical team work closely with clients and ask the right questions to ensure full understanding of any dimming protocols on site so that Chelsom product is entirely compatible from a lamp type, switching and flicker- free dimming performance perspective.\nLamp technology has developed possibly faster in the last 10 years than at any time since Thomas Edison invented his first electric light bulb. Chelsom constantly embrace the latest developments to ensure the hospitality an marine markets work with the most energy efficient an aesthetically pleasing light sources. Today’s lamps use 90% less energy than old incandescents, last up to 25 times longer, give off almost no heat and significantly reduce maintenance costs. The latest retrofit lamps from Chelsom have almost 360 degree light output and a 2700K warm white colour temperature with instant start and good dimmability, compatible with both leading and trailing edge phase dimming controls.\nRetrofit LED Filament\nFilament lamps are now available with LED light sources. Chelsom offer very high quality options with 2200K colour temperature meaning the ambience is indistinguishable from original incandescent options. Lamps are dimmable with trailing edge phase dimming controls and interesting lamp shapes combined with a soft glow of light have ensured the popularity of filament lamps. In Edition 26, several collections are priced and supplied complete with filament lamps where they enhance the decorative appeal of the original designs.","domain":"optical_engineering"}
{"url":"https://www.cismst.de/en/news-2012-10-04-en/","date":"2023-11-30T06:32:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00709.warc.gz","language_score":0.8716216087341309,"token_count":421,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__52883644","lang":"en","text":"Schematic structure and demonstrator of the optoelectronic absorption and fluorescence sensor\nWhen ecosystems are stressed by the release of chemical substances, the effect of the various possible combinations on living organisms is still largely unknown. While the toxicological effect of individual substances is usually quickly recognized, the number of possible mutual influences increases sharply with the number of substances. The project “Optoflutronics” as part of the ongoing BMBF joint project “Competence Triangle Optical Microsystems 2020” (OptiMi2) aims at the efficient investigation of the combination effect of potential active and harmful substances. An efficient analysis of the toxicological parameter space can only be realized by consequent application of system integration in the sense of a combination of microfluidics, microoptics and microelectronics.\nIn this context, the CiS Research Institute leads the development of a micro-fluorescence sensor. In a multi-channel sensor, optical excitation with different wavelengths of light and measurement of transmission and fluorescence signals take place. The sensor is based on the combination of narrow-band high-efficiency light-emitting diodes, optical interference edge filters, micro-precision optics and highly sensitive photodetectors. The sensor is designed to detect a wide variety of fluorescent and absorbing substances in segments as small as a few nanoliters, which pass through the sensor at speeds of several centimeters per second within a fluidic channel.\nThe highly sensitive measurement requires sampling rates of several kilohertz and signal amplification directly on the sensor.\nTU Ilmenau, Institute for Micro- and Nanotechnologies MacroNano®.\nMLU Halle-Wittenberg, Institute for Toxicology\nCiS Research Institute for Microsensorics and Photovoltaics GmbH, Erfurt, Germany.\nPlease visit us at the COMPAMED 2012 trade show,\nIVAM Product Market “High tech for Medical Devices” in hall 8a, booth no.: G 19.5.","domain":"optical_engineering"}
{"url":"http://knoxvillestartupday.com/presenters/robert-wilson/","date":"2018-03-20T07:59:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647322.47/warc/CC-MAIN-20180320072255-20180320092255-00680.warc.gz","language_score":0.9272757172584534,"token_count":188,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__237571293","lang":"en","text":"RDI LLC has developed and patented a technology platform capable of measuring motion, vibration, and displacement not visible to the human eye. RDI utilizes standard video camera technology in conjunction with methods and processing algorithms to extract meaningful data. This technology turns virtually every pixel in the camera’s view into a sensor capable of measuring vibration or motion with sub pixel accuracy. The results naturally lend themselves to a visualization of the motion and several unique market segments. The opportunities are endless as previously undetectable motions from anything that a camera can see can now be measured and quantified. RDI’s focus is on 3 major markets: human respiration monitoring, structural health monitoring, and machine condition monitoring. RDI technology creates the ability to see an infant’s respiration rate, the deflection of a bridge while a truck drives over it, and the vibration of a machine as it produces goods, all with a simple video camera.","domain":"optical_engineering"}
{"url":"http://lvs-inc.com/","date":"2016-02-05T21:55:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701145519.33/warc/CC-MAIN-20160205193905-00312-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.8744217753410339,"token_count":148,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__163173718","lang":"en","text":"LVS® provides print quality inspection and barcode verification systems including in-line process control systems; off-line verification systems; and vision technology for thermal printers. Click on the video to learn more about our state-of-the-art print quality vision inspection systems.\nFor over 30 years, Label Visions Systems (LVS®) has been in the business of designing, developing and manufacturing print quality vision inspection systems, leveraging our patented methodology in barcode imaging and ISO (ANSI) barcode grading. LVS® has installations in over 40 countries and maintains a commitment of excellence to our customers, the print industry and the vision products we produce.\nNew INTEGRA 9580\nLabel Vision Systems, Inc.","domain":"optical_engineering"}
{"url":"https://au.lightforce.com/en-us/products/venom-flush-mount","date":"2023-12-06T17:17:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100602.36/warc/CC-MAIN-20231206162528-20231206192528-00255.warc.gz","language_score":0.8473601937294006,"token_count":460,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__35897823","lang":"en","text":"Venom Flush Mount LED Driving Light\nMade in Australia, the new Venom LED Flush Mount incorporates the physical features of the Lightforce Venom LED yet provides the integrated look we have all been looking for. Traditional ways of mounting lights to a bull bar are changing and the new streamlined flush mount install option will offer an alternative for those choosing to not use a bull bar.\nPerfect for trucks that have length restrictions, the Venom flush mount LED lights can be integrated directly into the truck bumper without compromising on light output.\n1 Lux at 850 Metres\nThe compact high-performance 75W Venom Flush Mount boasts an incredible 1 lux @ 850m and allows the user to change the beam patterns to suit their environment, by using the unique Lightforce Modular Filter System.\n- 75W LED / 7850lm (raw) for industry leading output\n- 21 high quality Lumileds™ LEDs that provide consistent performance\n- LED spot reflector with the ability to use other modular filters\n- 66mm slim footprint that provides multiple mounting options\n- Fully adjustable hardware included enabling the light to be precisely aligned both horizontally and vertically\n- Reverse polarity voltage protection and high current waterproof connectors\n- Thermal overload protection, protects light from overheating\n- Hard-wearing UV stable powder coat finish\n- IP68 and IP69K rated / Gore® waterproof membrane to protect against water and dust\n- Pressure diecast aluminium housing\n- Impact resistant polycarbonate filter for added protection\n- CE certified.\nVenom LED is filled with innovations and certifications such as CISPR25 and IP69K. This means every light has reduced radio interference technology and ability to withstand dust and water ingress. Compliment these features with a UV stable powder coat finish and 3 year Lightforce warranty, nothing packs more punch in a compact size than the Venom LED.\n|Distance: 1 lux at||850m (Pair)|\n|Distance: 0.25 lux at||1700m (Pair)|\n|Current Draw||5.7Amps @ 13.2V|\n|Voltage Range||10V - 32V|\n|Ingress Protection Rating||IP69K|\n|Weight||1.2kg Including Bracket|","domain":"optical_engineering"}
{"url":"https://productsonsale.com.au/product/anti-fog-spray-15-milliliters-zeiss-lense-glasses-glass-sports-underwater/","date":"2022-06-29T07:28:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103624904.34/warc/CC-MAIN-20220629054527-20220629084527-00677.warc.gz","language_score":0.8831332921981812,"token_count":515,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__35988099","lang":"en","text":"Anti Fog Spray, 15 milliliters ZEISS lense, glasses, glass Sports, Fitness & Outdoors\nEvery glasses wearer is familiar with lenses fogging up: whether from wearing a facemask, stepping from a cold environment into a warm one or just consuming a hot drink.\nZEISS AntiFOG Kit combines a spray and cloth which, when used together, can be quickly applied to both sides of the lens and provide up to 3 days of defence against fogging.\nAntiFOG Kit contains:\n- 1 x 15ml AntiFOG Spray\n- 1 x AntiFOG Cloth (5in x 5in / 13cm x 13cm)\n- 1 x Portable pouch for convenient storage\nHow does ZEISS AntiFOG Kit work?\nUsing ZEISS AntiFOG spray and AntiFOG cloth together on your lenses results in the application of a thin hydrophilic film – comparable with a temporary additional coating – on the lenses. This ensures that fine, condensed water droplets do not accumulate on the lens surface causing fogging. Due to the hydrophilic coating any moisture spreads out on the lens to form a thin even layer that does not impair visual clarity. Thanks to the cloth, this process is quick, gentle and does not damage the lens coating. If the lenses need to be cleaned again it is recommended that you repeat this lens care process using ZEISS AntiFOG kit to ensure optimum protection against fogged-up lenses.\nTesting carried out in 2020 at Aalen Group Test Center\nZEISS AntiFOG performance was verified by performing the following 4 tests:\nTest 1 – Optical Clarity\nA lens treated with ZEISS AntiFOG is examined to ensure its retained its optical clarity.\nTest 2 – Huff Test\nThree large exhales of air are applied directly to a lens treated with ZEISS AntiFOG to confirm ZERO fogging.\nTest 3 – Cold to Room Temperature Test\nA lens treated with ZEISS AntiFOG is taken from -5° C to an environment of room temperature (25° C) and confirmed to show no fogging.\nTest 4 – Warm Mist Longevity Test\nA lens treated with ZEISS AntiFOG is held directly in a 50° C warm mist stream and confirmed to resist fogging (as per ASTM F659 standard). This is repeated five times a day for 3 consecutive days to confirm up to 3 days fog free vision.","domain":"optical_engineering"}
{"url":"https://www.fimark.co.uk/laser-etching/","date":"2020-01-22T08:17:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250606872.19/warc/CC-MAIN-20200122071919-20200122100919-00129.warc.gz","language_score":0.9028835892677307,"token_count":175,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__196533733","lang":"en","text":"Marking by discolouring the surface of a component or by precisely removing paint.\nVery much as it sounds, a precisely controlled laser beam is used either to discolour the surface of a component or to vaporise material. The laser parameters and the laser’s position can be precisely controlled to provide high contrast marks in the form of barcodes, logos and graphics.\nIf a surface is painted then the laser can be used to precisely remove paint. By choosing a translucent substrate that is a contrasting colour a graphic can be backlit for night and day readability.\nCommon materials that are laser etched include anodized aluminium, coated metals, foils and films, or laminates and painted plastic components.\nSuch process is used widely in the automotive and aerospace industries on backlit buttons and also by the general manufacturing industry on coated metal components.","domain":"optical_engineering"}
{"url":"https://haben-heiraten.com/Lebanon/2011/opticalfiber_1-c90hc39822zcqqz.pdf","date":"2022-06-27T17:59:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103337962.22/warc/CC-MAIN-20220627164834-20220627194834-00505.warc.gz","language_score":0.8542547821998596,"token_count":5277,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__178495759","lang":"en","text":"The diameter of a single mode core is 9µm. Both fiber types have a cladding diameter of 125 µm or microns The two main parameters are Coating Diameter (Uncolored) 237 - 247 μm and Coating-Clad Concentricity Error of max. 0.5 micron. For roughly the first 30 years of single-mode fiber manufacturing, a coating nominal diameter of approximately 245-250 μm was standard in the industry .g. for high-power devices or for multi-core fibers with a larger number of cores. Many fiber tools such as fiber strippers and fusion splicers are optimized e.g. for the 125-μm standard cladding diameter and may then not work well for non-standard fiber diameters The typical core diameter of communication single mode fibers is from 8~10um for operating wavelength 1.31um to 1.5um. Fiber with a core diameter less than about ten times the wavelength of the propagating light cannot be modeled using geometric optics as we did in the explanation of step-index multimode fiber A typical single-mode optical fiber has a core diameter between 8 and 10.5 µm and a cladding diameter of 125 µm. There are a number of special types of single-mode optical fiber which have been chemically or physically altered to give special properties, such as dispersion-shifted fiber and nonzero dispersion-shifted fiber.Data rates are limited by polarization mode dispersion and chromatic.\nLeft: Single Mode fiber is usually 9/125 in construction. This means that the core to cladding diameter ratio is 9 microns to 125 microns. Multimode Fiber Optic Cable Multimode fiber optic cable has a large diametral core that allows multiple modes of light to propagate Since MFD value for single mode fiber does not really exceed 12 microns typically, why is the cladding diameter still 125 microns? Is this due to optical reasons or more to do with mechanical strength and processing methods? Answer from the author: Considering only the optical performance, the fiber diameter could indeed be much smaller. However, such extremely thin fibers would indeed not. For single-mode fiber, the mode field diameter is larger than the physical diameter of the core, because the light penetrates slightly into the cladding as an evanescent wave. The three most common core sizes are: 9 μm diameter (single-mode) 50 μm diameter ; 62.5 μm diameter (multi-mode) See also. Buffer (optical fiber\nAlthough the cladding possesses six-fold symmetry, the mode profile is very similar to the quasi-Gaussian fundamental mode of a conventional, axially symmetric, step-index fiber, resulting in a form overlap that is >90%. Unlike conventional fibers, these fibers are fabricated from a single material - undoped, high-purity, fused silica glass For single-mode fibers, the evanescent field must also be considered, particularly when the fiber is to be coiled/bent. A general rule is to keep the cladding diameter greater than 8-10 times the mode field diameter of the fundamental mode\nHow reducing cladding diameter changes size of single-mode fibers with 10 µm cores. Standard fibers have an outer diameter of 125 µm, which is thick compared to the 10 µm core of single-mode fiber. It's possible to reduce the cladding diameter to 80 µm, which reduces the glass volume of the fiber by a factor of 2.4. A reduced cladding fiber with a plastic coating has an outer diameter of. Single Mode (SM) vs. Multi-Mode (MM) Fiber There are a few factors that contribute to the type of mode propagation a fiber will demonstrate. These factors ultimately make up the fiber's V-number that determines which modes propagate in a fiber. These factors include: indices of refraction of core and cladding, core diameter, and wavelength. Single-mode fibers are etched to reduce the cladding diameter from 125 to 15 ॖ m . A 2-ॖ m -thick silica layer is grown in the silicon substrate to minimize the fiber-substrate coupling. Reduced diameter fibers are placed into a 5- mm by 150-ॖ m trench etched in a silicon-silica substrate and fixed with UV curable cement. Active alignment.\nFig. 1. Coupling between counterpropagating core and cladding modes through stimulated BDGs. (a) Phase matching considerations. Illustration of the dispersion relations of the core optical mode of a single-mode fiber in both directions, a cladding mode in one direction, and an acoustic mode excited by backward SBS between two counterpropagating pump waves in the core mode Single Mode (SM) and Multimode (MM) are the names given to two competing designs of optical fiber based on how many paths of light are transmitted along the fiber core - single mode, meaning one path, or multimode, meaning more than one path. A mode can be described as a path or ray of light in the core of the optical fiber Single-mode Only the fundamental zero-order mode is transmitted in a single-mode fiber. The light beam travels straight through the fiber with no reflections from the core-cladding sidewalls at all. Single-mode fiber is characterized by the wavelength cutoff value, which is dependent on core diameter, NA and wavelength of operation. Below the. Cladding Mode Free fiber is mode-matched to standard transmission fibers for telecommunication system use. Optical Specifications. Operating Wavelength. 1450 - 1600 nm. Core NA. 0.130 . Mode Field Diameter. 9.1 ± 0.5 µm @ 1550 nm. Cutoff. 1370 ± 70 nm. Geometrical & Mechanical Specifications. Cladding Diameter. 125.0 ± 1.5 µm. Core Diameter. 8.0 µm. Coating Diameter. 245.0 ± 15.0 µm. Shop Panorama Antennas Network Cables. From the People Who Get IT\nDraka Single-Mode Fiber (SMF) provides optimum performance in both the 1310 nm and 1550 nm wavelength operation ranges (including the 1565 - 1625 nm L-band), with a low dispersion in the 1310 nm window. It can be used in all cable constructions, including loose tube, tight buffered, ribbon, and central tube designs. It supports long haul, metropolitan, access and premises applications in. * The nominal diameter may have a tolerance with ±0.4mm. 3. Performance of Cabled Optical Fiber The performance of cabled single mode optical fiber ( Corning ITU-T Rec. G.652D) Item Specification Type of fiber Single mode Fiber material Doped silica Attenuation coefficient @ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm ≤ 0.36 dB/k Single-mode fibre, E9/125/250, OS2 / G.652.D low attenuation. in accordance with ITU-T G.652.D, IEC 60793-2-50 Type B1.3, equates to EN 50173:2011 OS2 . 1 Core 2 Cladding 3 Coating. Description. Full-spectrum single-mode fibre in accordance with ITU-T G.652.D with optimised transmission characteristics. Suitable for the operating wavelengths in all FTTx networks. Tight dispersion tolerance to. mode field reduced cladding cladding core depressed cladding hole assisted trench assisted nano structured Reduced bending loss of singlemode fibers New standard Introduction Figure 1 Variations of low bend fiber designs (not drawn to scale) from left to right: reduced mode field diameter, reduced cladding, depressed cladding, hole assisted, trench assisted, and Nano Structured. Although.\nSingle-mode fibers have small core diameters of 5 or 10 μm. The diameter of the cladding in the multi-mode and single-mode fibers is 125 μm as shown in Fig. 4. Download : Download high-res image (105KB) Download : Download full-size image; Fig. 4. Dimensions of the single-mode and multi-mode fibers, the single-mode, and multi-mode fibers have core diameters of 9 μm and 50 μm respectively. In optical fiber technology, single mode fiber (SMF) or monomode fiber, is an optical fiber that is designed for the transmission of a single ray or mode of light as a carrier to propagate at a time. Generally, single mode cable has a narrow core diameter of 8 to 10µm (micrometers), which can propagate at the wavelength of 1310nm and 1550nm. In a single-mode fiber, all signals travel straight.\nSingle-mode fibers Cu450 | Cu600 | Cu800 | Cu1300 | Cu1300/200 | AL1300 Copper and aluminum-coated single-mode fibers for near-IR wavelength range are usually in stock and available for same day ship-ping in lengths starting at 20 m. Custom single-mode configurations, including pure silica core or custom wavelengths, may requir The usual fiber specifications are size (core/cladding diameter in microns), attenuation coefficient (dB/km at appropriate wavelengths) and bandwidth (MHz-km) for multimode fiber and chromatic and polarization-mode dispersion for singlemode fiber. While manufacturers have other specs for designing and manufacturing the fiber to industry standards, like numerical aperture (the acceptance angle.\nbase of standard single-mode fibers such as SMF-28e+ fiber. SMF-28 Ultra fiber offers industry-leading specifications for attenuation, macrobend loss, and polarization mode dispersion values, which provide a solid foundation for new network deployments as well as upgrades to existing networks. Since Corning brought the first fiber to market more than 40 years ago, Corning's leadership in. Segmented cladding fibers were fabricated with PMMA polymer. Single-mode operation at 1.55 /spl mu/m was observed with a 36.5-cm long fiber that consisted of 4 cladding segments and had a core diameter of 20 /spl mu/m The multimode nature of large core diameter terahertz fibers has to be suppressed by tuning the antiresonant tubes to act as a single mode fiber in the whole transmission region. The metal wires maintain the optical properties of refractive index and mode field pattern, while lowering the confinement loss. This work, aiming at improving the loss performance of terahertz waveguides, finds that.\nFiberguide's Single Mode Fibers are used in data transmission applications as well as photonics applications where a single optical path, or mode, is desired. These fibers are available with Acrylate coatings and also high performance Polyimide, Aluminum, and Gold coatings that allow them to exceed the temperature performance levels of standard fibers. Standard Specifications. Single Mode. Mode Field Diameter @ 1550 nm (μm) 1550 ≤ 1520 ≤ 0.3 9.1 ± 0.5 Key Geometric, Mechanical, and Environmental Specifications Cladding Outside Diameter (μm) Cladding Outside Material Coating Outside Diameter (μm) Core-to-Cladding Concentricity (μm) Proof Test (kpsi) Operating Temperature (°C) Coating Type 125 ± 0.7 Titania 245 ± 10. We show the design and applicability of multi-core fiber (MCF) with the standard 125 μm cladding diameter to the telecommunication systems. It offers easier and practical use of the space-division multiplexing (SDM) technology given its excellent fiber productivity and utilization of existing standard technologies. We numerically and experimentally reveal that the simple step-index (SI. Fiber Bragg gratings (FBGs), which consist of a periodic modulation of the refractive index in the core of a single-mode optical fiber, are widely used for optical communication devices, temperature sensors, and distortion sensors. 1) In addition to FBG sensors, tilted fiber Bragg gratings (TFBGs) have recently been attracting considerable attention for their use in sensing applications. 2. We assumed this fraction to be equal to 90%, yielding a cladding hole diameter of 1.76 µm. The index spectrum of the fundamental space-filling mode (taken to be the cladding effective index) of the water-filled cladding was numerically obtained and is shown in Fig. 1a (blue line). As values are ~1.36, the fiber may present single-mode guidance in liquids, such as ethanol, that present indices.\nA technique for determining the cladding diameters of single-mode optical fibers, using the fringe profiles in an interferometer is proposed. When the Lloyd's mirror arrangement is used it is possible to obtain fringes from rough surfaces. The possibility of automating the measurements is discussed along with imaging of the fiber tip and its reflected image Generally, this path difference is made by combining different types of optical fibers, for example, multimode with single-mode [4, 5] or single-mode with microstructured , tapered two-modes [7.\nV - number determines how many modes a fiber can support, It is given by, where d is the diameter of the core, l is If V ≤ 2.405, then the fibre is single mode fibre (SMF) If V > 2.405, then the fibre is multimode fibre (MMF) Number of Modes traveling in Fibre. The total number of mode traveling in a fibre depends on the V - Number and is related as: For Step Index Fibre: For Graded. When the core diameter is small, only a single mode is permitted and the fiber is said to be a single-mode fiber. Fibers with large core diameters are multimode fibers. One of the difficulties associated with light propagation in multimode fibers arises from the differences among the group velocities of the modes. This results in a variety of travel times so that light pulses are broadened as. As you know, there are two main types of optical fiber: single-mode and multimode. Both types of fiber are composed of only two basic concentric glass structures: the core, which carries the light signals, and the cladding, which traps the light in the core (Fig. 1). Single-mode fiber has a smaller core -- only 9 microns in diameter - and only 6 times the wavelength of light it transmits. The. High Speed Micro Cladding Using a High-Power Single-Mode Continuous-Wave Fiber Laser and a Polygon Scanning System M. Erler, R. Ebert, S. Gronau, M. Horn, S. Klötzer, H. Exner Laserinstitut Hochschule Mittweida, Technikumplatz 17, 09648 Mittweida, Germany Abstract High speed micro cladding is a new field of research at the Laserinstitut Hochschule Mittweida (LHM). So far, the investigations. Photonic Single-mode Fiber Series for Component Use. YOFC Photonic single-mode fibres are specially developed for optical components. The fibre has a Ge/F codoped material system and special fibre waveguide structure by PCVD process. It is suitable for FBT coupler. For the tighter geometric characteristics and optimised-optical specifications, the fibre is good performance in pigtails use. It.\nThe optical fiber has almost the same size as existing standard single-mode optical fibers and has the same coating diameter, therefore it can be easily cabled and installed using existing equipment. Furthermore, the transmission capacity has been demonstrated to exceed record transmission in conventional fibers by a factor of 8. Such a fiber maybe be suitable for transmission scenarios where. Depressed inner cladding single-mode fiber A depressed inner cladding single-mode fiber has: - absolute index differences: ∆n+ = 4.10-3 and ∆n- = 2.10 ; - a core diameter: 7 µm; - an inner cladding diameter: 50 µm; - an outer cladding diameter: 125 µm. 1) Calculate its cut-off wavelength. Can this fiber be used at both wavelengths, λ1 = 1.3 µm and λ2 = 1.54 µm? 2) For usable. For some embodiments the signal-pump multiplexer comprises a standard single mode fiber 202a, 202b (collectively 202) located on a signal port and a passive DC fiber 205a, 205b (collectively 205) located on a common port, which has similar waveguide properties (e.g., core diameter, inner cladding diameter, and outer cladding diameter) as the DC EDF 206 that is spliced to the passive DC fiber. Part Number Fiber Type Description Outside Diameter (in./mm.) Max. Weight (lbs./kft.) Std. Length Max Length; FB02SX : SM OS2: Single-mode 2-fiber: 0.08 / 2. Mode-Field Diameter [μm] 8.6 +/- 0.4 9.6 +/- 0.5 Maximum Cable Cutoff Wavelength λcc [nm] 1260 Maximum Polarisation Mode Dispersion (PDM) [ps/√km] 0.2 0.2 Refractive index 1.4670 1.4677 MECHANICAL PROPERTIES Geometrical and mechanical characteristics Cladding diameter [μm] 125 +/- 0.\nMulti-mode fibers are described by their core and cladding diameters. Multi-mode optical fiber-Wikipedia. Traditionally, PMMA (acrylic) comprises the core (96% of the cross section in a fiber 1mm in diameter), and fluorinated polymers are the cladding material. Plastic optical fiber-Wikipedia. The core is surrounded by a medium with a lower index of refraction, typically a cladding of a. The structure consists of a short section of an endlessly single mode Photonic Crystal Fiber (PCF) as sensing element, sandwiched between a lead-in and lead-out SMF28 fiber. Core diameter mismatch obtained by mutual distance of fiber ends leads to guidance of light in the structured cladding of the PCF. This makes the transmission of the device dependent on the refractive index of the external.\nThe highest spatial channel count reported to date for 125-flm diameter cladding fiber is eight single-mode cores [9,10]. Recently, elliptical-core few-mode fibers (EC-FMF) were introduced as an. The fiber is a smaller core MMF that has a mode field diameter for the fundamental mode compatible with that of standard single-mode fiber. Its single-mode and multimode transmission capabilities were demonstrated using different types of transceivers. However, because it is a non-standard fiber type, the industry is not able to readily accept it. Table 1. Comparison of different multimode and. Viele übersetzte Beispielsätze mit fiber cladding - Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen\nA heterogeneous single-mode 37-core fiber with a cladding diameter of 248 μm is designed and fabricated. The fiber provides the highest core count and low total-crosstalk less than −20 dB/1000 km in C+L band Sama seperti jenis single mode, jenis ini juga terjadi perubahan index bias dengan segera pada batas antara core dan cladding. Diameter core sebesar 50 - 400 um ini digunakan untuk dapat menaikkan efisiensi coupling pada sumber cahaya yang tidak koheren seperti LED. Jenis kabel ini kurang populer dibandingkan dengan single model fiber\nShop AMX Network Cable Accessories. From the People Who Get IT Two methods to measure the cladding diameter of single-mode fibers are presented. The first method is based on an interference fringe measurement technique. Interference fringe spacing at two different planes is measured to determine the cladding diameter of the fiber. The theory of the fringe formation in the interferometeric arrangement using. Photosensitive Single-Mode Fiber Nufern Cladding Mode Suppressed Photosensitive Fiber is designed for very good cladding mode suppression— cladding modesare suppressed to less than 0.1 dB for a 30 dB grating and low splice loss. This photosensitive fiber provides cost-savings for grating-writing because customers can write highly repeatable, quality gratings in a short time. NU0013-11/06 Typ.\nDimensions of single mode/multimode fiber . In single mode optic fiber cable, core-to-cladding diameter is about 9 microns by 125 microns. In multi mode optic fiber cable, core-to-cladding diameter is about 50 (or 62.5) microns by 125 microns. The figure depicts the fiber optic cable and mentions the core and cladding portions Reduced-cladding single-mode fiber is a kind of bending-insensitive SM fiber with higher NA. The reduced cladding/coating dimension decreases the sensitivity of the fiber to bending losses and allows extremely tight fiber coiling with low bending losses. According to the requirement of the customer, the fibers can be specially designed to obtain variable cut-off wavelength, MFD and bending. SINGLE MODE FIBERS. In general, the single mode fibers are step - index fibers. These types of fibers are made from doped silica. It has a very small core diameter so that it can allow only one mode of propagation and hence called single mode fibers. The cladding diameter must be very large compared to the core diameter. Thus in the case of. Single-Mode Fibre Bend Insensitive G.657.A1- 200um Coating C1013, C1015, C1017, C1211, C1239, C1258 G.657.A1 Bend Insensitive 200um Single-Mode Optical Fibre Specifications Corning® ClearCurve® Ultra Optical Fiber Cladding Diameter 125,0 ± 0,7 µm Cladding Non-Circularity ≤ 0,7% Core/Cladding Concentricity ≤ 0,5 µ For standard telecommunication single-mode fiber (SMF), the core diameter is around 9 microns and the cladding diameter 125 microns. SMF is utilized in long-haul applications with transmission distances up to 100km, without the need for any repeater. Multi-mode fiber (MMF) typically uses a core/cladding diameter of 50 microns/125 microns, which provides less reach - up to approximately 2km.\nPractically, core diameters and numerical apertures are larger for multimode fibers than for single mode fibers. Consequently, it may be possible to inject non negligeable ratio of light coming from a reasonably large light source ( as LEDs or other non coherent light source ) in a multimode fiber. However it depends on the fiber and particulary on its numerical aperture and its core diameter. Single-mode optical fiber has a small core diameter through which only one mode will propagate. Single mode fiber provides higher transmission speeds and longer distances compared to multimode fiber, and has a lower numerical aperture due to the much smaller core size. We offer a wide variety of single mode fibers to meet most application needs with the initial beam diameter (2w0) set to the mode-field diameter of the fiber of 10.5 μm. We find that the BeamAlyzer data is unreliable and does not fit the theoretical description. On the other hand, the knife edge scan and the pinhole power measurements show that the Gaussian beam model can be used to accurately and precisely describe the beam divergence to a very high degree. We also. Fiber optic multi mode memiliki diameter core sekitar 50-62,5 mikron (lebih besar dibanding single mode) yang membuat cahaya di dalamnya akan terpantul-pantul di dinding cladding. Hal ini dapat menyebabkan berkurangnya bandwidth dari fiber optic jenis ini. Ukuran core yang besar memungkinkan fiber optic mendukung berbagai mode elektromagnetik untuk frekuensi dan polarisasi tertentu A single-mode fiber is used to carry just one light wave over very long distances. Bundles of single-mode optical fibers are used in long-distance telephone lines and undersea cables. Multimode optical fibers, which have a core diameter of 50 micrometers and a cladding diameter of 125 micrometers, can carry hundreds of separate light wave signals over shorter distances. This type of fiber is. Single-mode fiber-optic cable has also been getting increased attention as local-area networks have been extended to greater distances over corporate campuses. The core diameter for this type of fiber-optic cable is exceedingly small, ranging from 8 microns to 10 microns. The standard cladding diameter is 125 microns. SMF step index fibers are manufactured using the outside vapor deposition.","domain":"optical_engineering"}
{"url":"https://www.vascularimagingresources.co.uk/grin","date":"2022-01-19T08:37:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301264.36/warc/CC-MAIN-20220119064554-20220119094554-00254.warc.gz","language_score":0.873032808303833,"token_count":809,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__254107276","lang":"en","text":"GRadient INdex (GRIN) System\nChallenges in imaging Ca2+ in large numbers of endothelial cells in physiologically-relevant pressurized arteries have limited progress in understanding how pressure-dependent mechanical forces alter networked Ca2+ signalling.\nWe have developed a miniature wide-field, gradient index (GRIN) optical probe designed to fit inside an intact, pressurized artery. Using this setup, we are able to image Ca2+ signals with subcellular resolution in a large number (~200) of naturally connected endothelial cells at various pressures.\nThis cartoon shows the GRIN microprobe assembly inside a pressurized artery and endothelium.\nThe GRIN microprobe consists of a single pitch GRIN relay lens (SRL-050; Nippon Sheet Glass, USA) with dimensions ø = 0.5 mm and length = 30.2 mm.\nA 0.5 mm x 0.5 mm x 0.5 mm aluminium-coated micro-prism (66-771; Edmund Optics, USA) is attached to the distal surface using UV-curing optical epoxy (NAO 68; Norland Products, USA). The distal end of the GRIN rod with the prism attached is shown in the high resolution microscope image below.\nThe lens was sheated in a surgical stainless steel tube (0.71 mm outder diameter) for mechanical protection.\nIn this single lens configuration, the GRIN rod acts to reconjugate the image plane of detection optics through the length of the cylinder.\nWilson, C., Saunter, C.D., Girkin, J.M. and McCarron, J.G., 2015. Pressure‐dependent regulation of Ca2+ signalling in the vascular endothelium. The Journal of physiology, 593(24), pp.5231-5253. DOI: 10.1113/JP271157\nImaging using the GRIN system\nA Time series Ca2+ images of endothelial cells showing the progression of the Ca2+ response evoked by ACh (100 μm; bath applied; 1 μm estimated at the vessel lumen) recorded at 60 mmHg. Images are composed of instantaneous Ca2+ activity (green) overlaid on standard deviation images (greyscale) indicative of total Ca2+ activity. Scale bar: 100 μm. B ACh‐evoked Ca2+ signals from the same cells shown in A. In the left panel (unaligned data) the range of times for Ca2+ to increase for each of the ∼200 cells is approximately 4 s. The spread of responses resulted in mean data representing the data poorly. The position of the first peak of derivative signals was used to align Ca2+ signals, synchronizing the Ca2+ rises occurring in each due to the action of ACh (middle panel ‘aligned’) and illustrating total Ca2+ activity (red line). On successive application of ACh (20 min reequilibration following wash), the response to ACh was reproducible. C Select examples of unaligned (left) and aligned (right) cellular Ca2+ responses from ROIs shown in A. The grey box illustrates the time point of measurements from aligned signals. D Summary data illustrating the reproducibility of Ca2+ responses upon repeat application (wash + 20 min reequilibration) with ACh.\nCurved image plane correction in the GRIN probe\nIn uniform optics, field curvature arises from the use of curved optics producing images on a curved plane. This is a problem when imaging as the majority of detectors are flat.\nFor GRIN optics, which may be very narrow and long, far-field waves travel further than near field ones due to the refractive index changes in the material , causing off-axis rays to be focussed at a different focal plane","domain":"optical_engineering"}
{"url":"http://www.123lens.com/contacts/purevision.html","date":"2021-05-17T15:59:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991258.68/warc/CC-MAIN-20210517150020-20210517180020-00369.warc.gz","language_score":0.8974093198776245,"token_count":310,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__215045686","lang":"en","text":"Type: Monthly Disposable Contacts\nManufacturer: Bausch & Lomb Contacts\nOrder Purevision Contact Lenses\n123Lens can save you money on Purevision. We specialize in\nsuperior customer service and great deals on lenses. Manufactured by Bausch & Lomb Contacts, PureVision contact lenses are designed as monthly disposables to be worn as a daily lens for up to a month and discarded. Some patients, depending on advice from their eye care practitioner, are able to wear PureVision lenses for up to a month. With Monthly Disposable Contacts, patients are guaranteed clean lenses without a large build up of irritating deposits, making Purevision Contact Lenses a great choice for patients new to wearing contacts or for anyone suffering allergies. PureVision lenses are made using an optical design to correct spherical abnormality, giving you the best vision possible. As an additional benefit, PureVision lenses are made with a visible tint to help you locate your lenses in the solution. PureVision contact lenses are made of balafilcon A with a water content of 36%.\n100% Money Back Guarantee\nYES, we GUARANTEE that you will receive the exact type and brand\ncontact lenses specified in your doctor’s prescription. Each pair of\ncontact lenses will arrive sealed in manufacturer’s sterile vials or\nyour entire purchase will be refunded. We also guarantee that all\ncontact lenses will be delivered free of any manufacturer defects or we\nwill replace them at no additional cost.","domain":"optical_engineering"}
{"url":"https://drinkmaw.com/products/mamba-marksman-in-red","date":"2021-07-24T17:00:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150307.84/warc/CC-MAIN-20210724160723-20210724190723-00355.warc.gz","language_score":0.9381626844406128,"token_count":244,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__80887345","lang":"en","text":"The Mamba Marksman with RightLight™ technology combines a vibrantly styled frame with uncompromising comfort. The Marksman is available with White, Blue, and Red rubberized accents.\nMamba’s RightLight™ technology protects against harmful blue light emitted by modern screens. By minimizing blue light exposure, Mamba eyewear reduces eye strain and dryness, and increases sleep quality. Whether you’re gaming, binge-watching, or getting stuff done, Mamba is there to keep your eyes healthy and comfortable.\nAll Eyewear purchases include a leather hard case and microfiber cleaning cloth.\nThe Marksman glasses look & feel great! We originally ordered one pair to try them our and quickly found out that we needed to order a second pair!\nnice little lens coating. stops glare better than most.\nVery stylish and comfortable. Use them every time I stream.\nI really want to get me one of those glasses but I Where prescription glasses it be cool if you had or made attachable Lenses for people with glasses\nI have used other brands in the past, none have fit as well as the Marksman. Fits comfortably even with a headset on.","domain":"optical_engineering"}
{"url":"http://www.wzweldingmachine.com/led-chip-processing/59384924.html","date":"2021-05-16T05:23:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989690.55/warc/CC-MAIN-20210516044552-20210516074552-00486.warc.gz","language_score":0.8056166768074036,"token_count":573,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__15838481","lang":"en","text":"Model No.: SMD LED lamp beads 3535\nWhat is \"Flip Chip\"? How is its structure? What are the advantages?\nBlue LEDs usually use Al2O3 substrates. Al2O3 substrates have high hardness, low thermal conductivity and low electrical conductivity. If the front-mounted structure is adopted, on the one hand, it will bring about anti-static problems, on the other hand, heat dissipation will also become a problem under high current conditions SMD lights with LED. The main problem. At the same time, since the front electrode faces upward, a part of the light will be blocked, and the luminous efficiency will be reduced. High-power blue LEDs can obtain more effective light emission through chip flip-chip technology than traditional packaging technology Light Emitting Diode SMD.\nThe current mainstream flip-chip structure method is: first prepare a large-size blue LED chip with suitable eutectic welding electrodes, and at the same time prepare a silicon substrate slightly larger than the blue LED chip, and fabricate gold for eutectic welding. Conductive layer and lead wire layer (ultrasonic gold wire ball solder joints). Then, the high-power blue LED chip and the silicon substrate are welded together using eutectic Welding equipment. The feature of this structure is that the epitaxial layer is directly in contact with the silicon substrate, and the thermal resistance of the silicon substrate is much lower than that of the sapphire substrate, so the heat dissipation problem is well solved. Since the sapphire substrate faces up after flipping, it becomes the light emitting surface, and the sapphire is transparent, so the light emitting problem is also solved SMD LED lights.\nOrigin: Guangdong Export or not: Yes Order No.: 12458794 Brand: XiGe Article No.: 5897619 Model: 1206 Size：1206 Power: 0.5 (W) Color rendering index: 80 Luminous flux: 10 (LM) Forward voltage: 12 (V) Reverse voltage: 12 (V) ESD：12（V） Rated current: 10 (a) Chip brand: San'an Chip size: 5 (MIL) Phosphor brand: customizable Glue brand: customizable Wire material: gold wire Bracket material: Copper Luminous angle: 15 (°) Luminous efficiency: 100 (LM / W) Thermal resistance: ≤ 50 (° / W) Maximum allowable junction temperature: 100 (°) Voltage temperature coefficient: 5 (MV / ℃) 1000 hours conventional aging: 85% 6000 hours conventional aging: 20% Lm-80 test passed: Yes Color temperature range: 10 (k) Cross border export source: Yes","domain":"optical_engineering"}
{"url":"http://www.cinc.org/2019/Program/accepted/433.html","date":"2019-10-15T01:24:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986655735.13/warc/CC-MAIN-20191015005905-20191015033405-00015.warc.gz","language_score":0.9175025224685669,"token_count":422,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__113168411","lang":"en","text":"Aims: With advances in CMOS sensor technology, optical mapping measurements can be performed at megapixels resolutions >1 Mpixel and frame rates >500 fps at staggering data rates >1 GB/s, two orders of magnitude than a decade ago utilizing CCD sensors. Removal of baseline wandering involves non-linear methods of >O(n^2) complexity and this study aims to present a GPU accelerated parallel image processing method suitable for near real-time removal of optical mapping baseline wandering.\nMethods: Optical mappings were performed on isolated rabbit hearts with Di-4-ANBDQPQ Vm dye at resolution of 1600x1000 pixels at 500 fps. Baseline wandering removal was assessed with Keiser Window and Equiripple finite impulse response (FIR) filters in MATLAB with CPU processing (Intel i7, 8th generation) and GPU processing (NVIDIA 1080Ti 3584 CUDA cores), and native CUDA GPU processing, all in dual precision. Filter parameters are assessed with different slopes between stop band frequency (Fs) and pass band frequency (Fp), with Fs/Fp ratios ranging from 0.1 to 0.9.\nResults: FIR filters processing time was timed for different Fs/Fp ratios exhibiting exponential complexity as the ratio approaches to 1. GPU acceleration in MATLAB resulted in processing speed increase of up to 10 times, while native CUDA GPU processing resulted in speed increase of up to 50 times compared to single core CPU processing. CUDA processing data flow rates ranged from 2.5 GB/s for Fs/Fp = 0.1 down to 300 MB/s for Fs/Fp = 0.9.\nConclusions: GPU gaming class cards nowadays have few thousands cores at affordable prices and are suitable tool to leverage technological progress in optical sensors developments with increased resolution/frames rates as image processing is suitable for parallelization. Near-real time processing capabilities allow optical mapping method to become the research tool for real-time experimental setups enabling on-site decision making process, and disrupting traditional off-line data analysis.","domain":"optical_engineering"}
{"url":"https://floridaography.com/2015/07/23/image-stabilizer-lenses-and-autofocus/","date":"2023-06-09T11:16:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656675.90/warc/CC-MAIN-20230609100535-20230609130535-00137.warc.gz","language_score":0.8934313654899597,"token_count":123,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__153332579","lang":"en","text":"Image Stabilizer lenses and autofocus\nWhen shooting with an image stabilized lens, especially a long telephoto, if you don’t need to use the IS because your shutter speed is fast enough to avoid camera shake, try turning it off for even faster autofocus. This is especially useful for fast moving subjects where absolute AF speed is important. I mainly use the stabilizer when shooting speakers or subjects in low light when I feel the ISO starts to lose sharpness, which is around 1600 ISO for a Canon 2o MP full frame DSLR camera.\nContributed by: Martin Allred","domain":"optical_engineering"}
{"url":"https://www.stcsindia.com/our-category/transport-equipment/","date":"2023-12-07T23:32:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100705.19/warc/CC-MAIN-20231207221604-20231208011604-00300.warc.gz","language_score":0.926426112651825,"token_count":127,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__194231790","lang":"en","text":"Transport for all payloads, with superior performance and support for dynamic services with operational efficiencies. The advantages provided by optical fiber systems are the result of a continuous stream of product innovations and process improvements. Optical transport equipment includes multiplexers of all types amplifiers, cross connects, and others, including the emerging packet optical transport platforms. Packet transport networks take advantage of a variety of technologies. Carrier Ethernet switches, packet optical transport systems, IP switches and routers, and label switched router platforms are some of the technologies carriers have employed in packet transport networks for mobile backhaul, video transmission, data services, and other digital services.","domain":"optical_engineering"}
{"url":"https://www.pentzbooks.co.za/products/9780521527354","date":"2021-09-17T11:16:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055632.65/warc/CC-MAIN-20210917090202-20210917120202-00541.warc.gz","language_score":0.8698816299438477,"token_count":244,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__211977590","lang":"en","text":"Introductory Quantum Optics by Gerry, Christopher\nCAMBRIDGE UNIVERSITY PRESS, 27 September 2011\nPaperback, 332 pages\nThis book provides an elementary introduction to the subject of quantum optics, the study of the quantum mechanical nature of light and its interaction with matter. The presentation is almost entirely concerned with the quantized electromagnetic field. Topics covered include single-mode field quantization in a cavity, quantization of multimode fields, quantum phase, coherent states, quasi-probability distribution in phase space, atom-field interactions, the Jaynes-Cummings model, quantum coherence theory, beam splitters and interferometers, dissipative interactions, nonclassical field states with squeezing etc., 'Schroedinger cat' states, tests of local realism with entangled photons from down-conversion, experimental realizations of cavity quantum electrodynamics, trapped ions, decoherence, and some applications to quantum information processing, particularly quantum cryptography. The book contains many homework problems and an extensive bibliography. This text is designed for upper-level undergraduates taking courses in quantum optics who have already taken a course in quantum mechanics, and for first and second year graduate students.","domain":"optical_engineering"}
{"url":"http://psychelife.com/index.php/technology-science/125-transparent-solar-cells-transform-windows-into-power-source","date":"2018-06-21T21:59:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864300.98/warc/CC-MAIN-20180621211603-20180621231603-00117.warc.gz","language_score":0.923757016658783,"token_count":211,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__207483779","lang":"en","text":"Never been done before, a new transparent solar cell was recently developed by researchers at a Silicon Valley startup named Ubiquitous Energy. This innovative technology could greatly expand the capabilities of solar power and allow more practical ways of generating power in homes and even skyscrapers.\nThe invisible film can be applied to any surface and generate power which may lead to smartphones and tablets that can last forever without charging. Once thought impossible due to its transparent nature, the design uses photo-active materials which allow visible light to pass through while harvesting non-visible wavelengths of UV and infrared light.\nWith traditional photo-voltaic solar cells, 33% of the energy from light is converted to energy while transparent solar cells can only harvest 22%. Despite the lower percentage, the wider-range of versatility will allow these cells to produce energy in places which were never possible before. You can learn about these transparent solar cells in the video posted below.\n\"Solar power is the last energy resource that isn't owned yet - nobody taxes the sun yet.\"-Bonnie Raitt","domain":"optical_engineering"}
{"url":"https://www.xlef.org/4292/289a686d7a36.html","date":"2020-09-29T04:09:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401624636.80/warc/CC-MAIN-20200929025239-20200929055239-00403.warc.gz","language_score":0.8174866437911987,"token_count":512,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__161456358","lang":"en","text":"also tryscheelite roadheader\nWe are the manufacturer of coal mining machine,roadheader,coal loader,tunnel mucking loader,backfilling machine,concerte pumping machine and so on. also tryscheelite roadheader manufacturer, supplier.\nRoad headers are indispensable equipment for infrastructure construction for road tunnels, railroad tunnels, dam headrace tunnels, coal-mine drifts, etc.\nWe developed various tunneling and mining equipment based on our great experience in coal mining. Nowadays our equipment is widely used in various fields all over the world.\nOur everyday technical innovation contributes to the efficiency of our equipment. We are proud of our equipment's contribution to the improvement of infrastructure not only of China but also all over the world.\nFull Spectrum Laser | Lasers for Cutting and Engraving\nLasers: Cut and Engrave. ... These entry level machines are capable of cutting and engraving a variety of materials with unparalleled ease of use. ... Dual Head Laser.Learn More\nDouble Heads Laser Engraving And Cutting Machine\nCO2 Laser Cutting Machine manufacturers, suppliers and exporters in Bodor laser,Double Heads Laser Engraving And Cutting MachineLearn More\nTwo Head Laser Cutting Machine, Two Head Laser Cutting\nAlibaba.com offers 1,342 two head laser cutting machine products. About 100% of these are laser cutting machines, 1% are laser marking machines, and 1% are laser engraving machines.Learn More\nCO2 Laser CNC\n130W CO2 LASER ENGRAVING MACHINE. New Laser Engraving and Cutting Machine. ... 100W Laser Engraver Tube CO2 D80mm Glass Head for Co2 Laser Cutting Machine CNC. $481.00.Learn More\n2 Head Laser Cutting Machine, 2 Head Laser\n2 Head Laser Cutting Machine, Wholesale Various High Quality 2 Head Laser Cutting Machine Products from Global 2 Head Laser Cutting Machine Suppliers and 2 Head Laser Cutting Machine Factory,Importer,Exporter at Alibaba.com.Learn More\nCO 2 Laser Cutter - Full Spectrum Laser\nThe Full Spectrum Laser ... laser head while laser is cutting. Innovative safety designs to prevent injury and damage to machine. See exactly where the cutting ...Learn More\n15W 100 100cm Desktop DIY Laser Engraving Machine Cutter Printer ... CNC 1610 500mw laser. Laser head: 500MW. After 2 hours' operation， it's should be rested ...Learn More","domain":"optical_engineering"}
{"url":"https://vernonscope.com/binoviewer/","date":"2023-12-08T02:36:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00623.warc.gz","language_score":0.9246368408203125,"token_count":112,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__290476073","lang":"en","text":"1.25 Inch Binoviewer\nThis 1.25\" binoviewer is made in Germany with Zeiss Jen optics and German coatings, Each ocular is independently adjustable to your eyes.\nThe clear aperture is 22mm. The nosepiece is threaded to take standard 1.25\" metric threaded accessories (not the Brandon thread). The cost of the Vernonscope binoviewer is $995 and includes a case. The case will not match the one in the photo, but will be similar in size and shape.","domain":"optical_engineering"}
{"url":"http://www.pulsarnightvisionusa.com/content/pulsar-edge-gen-3-1x21-night-vision-binocular-pl75101","date":"2013-06-19T03:26:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368707440693/warc/CC-MAIN-20130516123040-00016-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7773913741111755,"token_count":164,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__117700586","lang":"en","text":"Pulsar Edge Gen 3 1x21 Night Vision Binocular (PL75101)\nThe Edge Gen 3 1x21 Night Vision Binocular utilizes dual auto-gated, thin-filmed ITT Pinnacle image intensifier tubes giving the operator the advantage of depth perception and a 200 meter range of observation of human sized targets. The Edge is compact and light weight preventing any balance or weight issues while head mounted. Built for the complex tactical environments, this aviator-style night vision binocular combines 1x magnification with a dual tube optical system for true awareness of depth in a user’s environment. The Edge features an ultra durable, glass-fiber reinforced nylon housing, an IP65 waterproof and dust proof rating, an adjustable power IR illuminator, and 50 hours of battery life.","domain":"optical_engineering"}
{"url":"http://lessrt.org/applications/","date":"2024-04-14T23:06:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816904.18/warc/CC-MAIN-20240414223349-20240415013349-00067.warc.gz","language_score":0.8791060447692871,"token_count":549,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__4548075","lang":"en","text":"Table of contents:\n- Understanding the theory of LESS\n- Why LESS is useful ?\n- Selected applications\n- Selected image demos\nUnderstanding the theory of LESS\nThe aim of LESS is to simulate the radiation interactions within intricate landscapes, such as forests and urban structures. The following two figures succinctly outline the primary functionalities of LESS. By inputting landscape structural data, component spectra, illumination/observation geometries, and other necessary information, LESS utilizes ray tracing techniques to solve the 3D radiative transfer problem. It then generates remotely sensed signals, encompassing canopy reflectance, LiDAR data, multispectral images, Solar-Induced Fluorescence (SIF), as well as various process parameters like Fraction of Photosynthetically Active Radiation (FPAR) and photosynthesis rates.\nThis process is often referred to as “forward simulation or modeling”. Unlike other 1D models, LESS does not rely on assumptions that abstract the canopy as homogeneous layers. Instead, it employs explicitly described structures to represent landscape elements, even down to the detailed structures of individual leaves or shoots. Consequently, LESS is renowned for its precision. Since the ray tracing technique utilized by LESS simulates light scattering at each ray-object intersection point based on fundamental physical laws (e.g., Lambertian reflection), simulations conducted by models like LESS are sometimes termed “first principle” simulations.\nIn summary, LESS yields considerably accurate results for light scattering within complex landscapes, facilitating various applications such as forest parameter retrieval, comprehension of remote sensing mechanisms, and sensor instrument design.\nLight scattering within a forest canopy:\nThe diagram of LESS’s functionality:\nWhy LESS is useful ?\nLESS facilitates the aforementioned applications by providing remote sensing observations alongside corresponding “ground truth” measurements. For instance, consider the retrieval of vegetation parameters from canopy reflectance, a fundamental goal in forest remote sensing. To establish a retrieval model, it is imperative to understand the relationship between reflectance and vegetation parameters. While field measurements can offer such insights, they are often laborious and site-specific. Alternatively, employing 3D simulations with LESS serves as an economical alternative. By utilizing the simulated reflectance alongside the ground truth parameters provided by LESS (refer to the figure below), we can establish a regression model or machine learning algorithm. Subsequently, real remote sensing reflectance can be inputted into this model to estimate vegetation parameters. Finally, field measurements can be utilized to validate the accuracy of the model.\n- LESS provides remote sensing observations and the corresponding “ground truth” measurements:","domain":"optical_engineering"}
{"url":"http://www.csgreenlightingsolutions.com/greenltg_HPT8.htm","date":"2013-05-24T13:21:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704662229/warc/CC-MAIN-20130516114422-00077-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8191238641738892,"token_count":187,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__154829865","lang":"en","text":"RDI 2x4 Recessed Indirect HPT8 Linear Fluorescent\nHPT8 (High-Performance T8)\nHPT8 is a combination of high efficiency electronic ballasts and four foot 32 watt T8 lamps. HPT8 will reduce lighting energy cost by up to 40% compared to older T12 or up to 17% compared to standard T8 systems. HPT8 luminaires can be used in any application where a standard T8 or T12 fluorescent luminaire would be used including troffers, parabolics, RDI and wraps.\nHPT8 Linear Fluorescent Fixture Advantages\n• High Lumen Lamp - 3100 vs. 2850\n• Longer Lamp Life - 24,000 vs. 20,000\n• Higher CRI rating - 81 vs. 75\n• High Efficiency Low Ballast Factor Ballast - .77 vs. .88","domain":"optical_engineering"}
{"url":"https://swalijibu.co.ke/2023/12/24/physics-form-2-summary-notes/","date":"2024-03-04T16:07:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00149.warc.gz","language_score":0.9066161513328552,"token_count":668,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__6860860","lang":"en","text":"Exploring the Wonders of Light: Reflection, Refraction, and Propagation\nIn the vast realm of physics, few phenomena captivate our imagination like the behavior of light. From the rectilinear propagation of light to the intricate reflections at plane mirrors, the study of light opens a door to a world of wonders.\nOne of the fundamental properties of light is its rectilinear propagation, which asserts that light travels in a straight line. This property finds evidence in various everyday occurrences, such as the formation of shadows. Shadows, those intriguing silhouettes that appear when light is blocked by an opaque object, come in two types: umbra and penumbra. Understanding the factors that determine the type of shadow formed, such as the size of the light source, the size of the object, and the distance between the object and the light source, allows us to unravel the mysteries of shadows.\nEclipses, those rare astronomical events that captivate the world, are also a result of the rectilinear propagation of light. A solar eclipse occurs when the moon casts its shadow on the earth, while a lunar eclipse happens when the earth’s shadow falls on the moon. These celestial events offer a captivating display of the interplay between light and shadow, reminding us of the beauty and precision of nature.\nThe pinhole camera, a simple yet powerful device, showcases the rectilinear propagation of light in a unique way. By allowing only a tiny hole for light to enter, it forms images that are diminished, real, and inverted. Understanding the factors that affect the image formed, such as the object distance, image distance, and size of the pinhole, unlocks the secrets of this remarkable camera.\nReflection from plane surfaces takes us into the realm of mirrors. The laws of reflection dictate that the angle of incidence is equal to the angle of reflection, and the incident ray, reflected ray, and normal lie in the same plane. This knowledge allows us to understand the characteristics of images formed by plane mirrors: they are the same size as the object, virtual, formed behind the mirror, erect, and laterally inverted. Comparing these characteristics to those of the pinhole camera’s images reveals intriguing differences, highlighting the versatility and uniqueness of light manipulation.\nAs we journey through the study of light, we also encounter the fascinating concepts of refraction, magnetism, sound, waves, and various other phenomena that enrich our understanding of the world around us. Each topic unravels new layers of knowledge, inviting us to explore the intricate dance between light and matter.\nIn conclusion, the study of light is a captivating adventure that leads us to unveil the mysteries of reflection, refraction, and propagation. From the formation of shadows to the enchanting images created by the pinhole camera, we witness the beauty and complexity of light’s behavior. So, join us on this enlightening journey as we delve into the wonders of light and its impact on our world.\nTheme: The theme of this essay revolves around the exploration of light and its various phenomena, such as reflection, refraction, and propagation. It highlights the captivating nature of light and its interaction with matter, inviting readers to delve into the intricate world of physics.","domain":"optical_engineering"}
{"url":"http://lanepgth050.blog2learn.com/5220407/eye-surgical-treatment","date":"2018-07-21T07:12:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676592420.72/warc/CC-MAIN-20180721071046-20180721091046-00303.warc.gz","language_score":0.9552431106567383,"token_count":1314,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__58665099","lang":"en","text":"Eye Surgery has actually come to be a mainstream approach of vision adjustment, and this post will certainly clarify the advantages and disadvantages of three various approaches being offered to the clinical consumer.\nLasik Eye Surgical treatment\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and is an eye surgical system which completely fixes vision by removing a thin layer of the cornea. This treatment functions best on patients with moderate to high degrees of myopia (nearsightedness), reduced to moderate levels of hyperopia (farsightedness) and also astigmatism connected with nearsightedness, and who have thick corneas. It is the most popular medical vision improvement method.\nPeople with typical eye sight see items plainly due to the fact that images are brought right into a proper prime focus by the cornea and also lens of the eye. Ideally, the cornea's curvature is evenly matched to its size in a typical eye. People with astigmatism, nearsightedness or hyperopia have off-and-on formed corneas, so the things seen are not focused effectively. LASIK changes corneal shape by exact removal of corneal cells, as well as by doing so corrects the eyes' concentrating power.\nThere are, however, dangers to LASIK eye surgical treatment.\nThere is a remote opportunity of complete loss of vision. If this happens, it is normally due to the fact that the patient had a pre-existing condition which needs to have precluded the surgical treatment to begin with, such as maternity, cataracts, joint inflammation, diabetes mellitus, glaucoma, or lupus. People with big pupils are likewise bad prospects for LASIK. Dry eye disorder will certainly be intensified by this procedure.\nA couple of people grumble that they permanently see \"ghost\" pictures, have actually blurred vision, reduced comparison as well as poor night vision. When LASIK wased initially presented, 5% of individuals had post-operative grievances; however, improvements in the treatment have created this rate to drop to less compared to 1% if LASIK is done by skilled practitioners and patients are properly screened prior to surgical procedure. If issues do occur, they could usually be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical procedure given that 1998. While there are a lot of completely satisfied people, there are however no long term research studies about its results. Realize the limitations as well as the risks of LASIK eye surgery prior to you sigh up for the procedure.\nThough much less popular, these little implants can enhance vision in patients with moderate to modest myopia without the danger of long-term eye damage fundamental in the tissue elimination technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to presume a flatter shape. Though slightly less accurate compared to LASIK, they are removeable and changeable, so if the client has an unexpected over- or under-correction, the implant can be eliminated and another of a various dimension inserted to get the wanted modification. The implants lie at the edge of the cornea, so the central aesthetic location is entirely undamaged and undamaged, and also the toughness of the cornea is undiminished, making it a better alternative for pilots as well as those that participate in contact sports where eye injury is a possibility.\nIntacs disagree for serious myopia and also more than minor astigmatism (1.00 diopters), as the cornea could just be extended so far. If the Intacs are eliminated, vision see go back to its preoperative degree. Apart from vision modification, Intacs are likewise used to treat keratoconus.\nIntacs are FDA accepted as well go to this site as 10 year researches have revealed no significant troubles with Intacs as well as few person issues; however, because the procedure takes a lot more training compared to LASIK, there are fewer eye surgery clinics offering it. Nevertheless, the Intacs website provides a checklist of professionals in each state, also a couple of in Canada, Europe and also Mexico.\nSince many people do not want to take the chance of LASIK and Intacs could not help those with serious vision troubles, intraocular lens implants (IOL) are a new choice approved by the FDA in 2004 to deal with modest to serious nearsightedness. The Artisan lens, produced by Ophtec, is similar to the sort of lens implant used to bring back vision following cataract eye surgical procedure.\nThe brand-new IOL, called the Craftsmen, is intended for only individuals who have 2.5 diopters or much less of astigmatism.\nThe artificial lens does not change the natural lens, however is placed before it. The major trouble found with the implant was the steady loss of endothelial cells in the corneas of clients that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are important in keeping the cornea clear. A three-year study showed a consistent constant loss of endothelial cells of 1.8 percent a year. Now, no person can forecast whether this loss will certainly proceed at the exact same rate indefinitely, or even its influence on corneal function.\nTo lessen long-term results of the tool on the corneal endothelium, the FDA is calling for that the brand-new lenses be identified to define that they need to only be implanted in individuals whose corneal endothelial cells are thick adequate to endure minor cell loss.\nA lot more serious issues were few: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up survey of its dental implant people to much better evaluate the post-surgical incidence of cataract advancement, retinal detachment and also other sensory conditions.\nThe Artisan lens is intended to be a long-term implant.Though it can be eliminated surgically, vision may not constantly go back to just what it was prior to getting the lens. Since it does not influence astigmatism, individuals with this trouble could still call for glasses.","domain":"optical_engineering"}
{"url":"https://brainly.com/question/132289","date":"2017-01-24T03:05:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560283689.98/warc/CC-MAIN-20170116095123-00437-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.9353398084640503,"token_count":129,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__238929292","lang":"en","text":"The earth absorbs UV and visible light from the sun. Due to the earth having a lower temperature than the sun, the earth emits a longer wavelength of light: infrared. The infrared light leaves earth, but can sometimes be absorbed and re-emitted by greenhouse gases, such as carbon dioxide or methane. These molecules can re-emit the infrared radiation in any direction, and so some of the infrared light ends up directed back toward earth. This means there is an increase in the total incident light on earth: the UV and visible light from the sun, and the infrared reflected back to earth by greenhouse gases.\nHope this helps! :)","domain":"optical_engineering"}
{"url":"http://edgarfcun667.blogdigy.com/two-concerns-individuals-do-not-really-know-regarding-to-lasik-eye-medical-surgery-4968703","date":"2019-01-24T07:16:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584519382.88/warc/CC-MAIN-20190124055924-20190124081924-00556.warc.gz","language_score":0.9538036584854126,"token_count":887,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__16735505","lang":"en","text":"Two Concerns Individuals Do Not Really Know Regarding To LASIK Eye Medical SurgeryThe eye can be analyzed with relative ease as to both its function and its structure. A functional assessment consists of the ability to move in the orbit and the reaction of the student to light and lodging.\nThe function of the eye may be tested in numerous ways. The client might be asked to determine illuminated letter or items of varying sizes on what is known as the Snellen chart.\nConversely, the examination of the structural part of the eye might be made in a number of methods. Stress within the eyeball is determined by a \"tonometer.\" In certain diseases, specifically in glaucoma, the stress in the eyeball is increased significantly.\nNevertheless, it needs to be well bore in mind that a client with an eye issue might have other problems too. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can notify the doctor and the client to problems in some disruptions of other parts of the body even before other signs present themselves.\nOne's reliance on sight is emphasized when one deals with a possible or temporary long-term loss of this crucial sense. When restorative measures are sought, certain types of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were established to encourage reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nEssentially, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this type of surgical treatment, one's vision is corrected permanently.\nWith LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgery, there are still disadvantages that people must know. Most likely, the primary reason that this type of eye surgical treatment has become well accepted is because the majority of its cases had actually succeeded.\nNevertheless, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nDue to the fact that LASIK eye surgical treatment involves the operation of the retina, which is one of the most sensitive parts of the eye, the majority of people say that the operation can be very dangerous.\nTo puts it simply, a easy error could nearly cause an person's life time loss of sight. It is important to consider numerous aspects before choosing whether LASIK eye surgery is the ideal restorative measure one has to go through.\n2. It is not a best procedure\nLASIK eye surgical treatment might fix your vision but it does not always imply that it can provide you a twenty-twenty. Even if analytical reports show that 70% of the patients might have 20/20 vision, this does not necessarily indicate they have perfect vision too.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the ideal eye surgical treatment the method many people view it\nOn the other hand, the assessment of the structural part of the eye might be made in numerous methods. It ought to be well kept in mind that a client with an eye problem may have other issues. Frequently other physical conditions are primary and affect the eye as a repercussion. The appearance of the eye can inform the client and the physician to troubles in some disturbances of other parts of the body even before other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment my sources is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://subseaworldnews.com/2016/03/17/subsea-7-deploys-3d-at-depth-lidar-technology-in-gulf-of-mexico/","date":"2018-01-24T05:36:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084893397.98/warc/CC-MAIN-20180124050449-20180124070449-00003.warc.gz","language_score":0.896679699420929,"token_count":167,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__74395322","lang":"en","text":"Subsea 7 and 3D at Depth have completed several metrology projects using subsea LiDAR technology developed by 3D at Depth.\nSubsea 7’s project stationed two 3D at Depth SL1 systems independently to collect simultaneous metrologies utilizing separate ROVs.\nThe survey conducted in the Mississippi Basin, Gulf of Mexico, completed a total of six spool metrologies.\nThe ranges achieved by 3D at Depth’s sensor technology allowed for a single set up and scan over a 220°-degree arc.\nDerek Perce, 3D at Depth Subsea LiDAR Specialist said: “3D at Depth will continue to provide our customers with innovations to LiDAR technology that demonstrate performance and increase the efficiencies of data collection, mapping and visualization.“","domain":"optical_engineering"}
{"url":"http://beauwmvd704.blogkoo.com/two-considerations-you-do-certainly-not-recognize-about-lasik-eye-treatments-7662505","date":"2019-01-20T05:51:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583700012.70/warc/CC-MAIN-20190120042010-20190120064010-00222.warc.gz","language_score":0.9540576934814453,"token_count":893,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__157487011","lang":"en","text":"Two Considerations You Do Certainly Not Recognize About LASIK Eye TreatmentsThe eye can be examined with relative ease regarding both its function and its structure. A functional assessment consists of the capability to relocate the orbit and the reaction of the student to light and accommodation.\nThe function of the eye might be checked in several ways. The patient may be asked to recognize illuminated letter or items of varying sizes on exactly what is called the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in a number of ways. Stress within the eyeball is measured by a \"tonometer.\" In particular illness, particularly in glaucoma, the tension in the eyeball is increased noticeably.\nNevertheless, it must be well bore in mind that a patient with an eye issue might have other issues as well. Often other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can signal the patient and the physician to problems in some disturbances of other parts of the body even before other symptoms present themselves.\nOne's dependence on sight is highlighted when one faces a possible or short-term irreversible loss of this crucial sense. For this reason, when restorative steps are sought, certain types of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are troubled with the fact that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to encourage reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgery is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this kind of surgical treatment, one's vision is corrected completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a Read Full Report series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to look these up direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that people need to understand. Probably, the main reason this kind of eye surgical treatment has actually become well accepted is due to the fact that the majority of its cases had actually been effective.\nIn spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nDue to the fact that LASIK eye surgical treatment involves the operation of the retina, which is one of the most sensitive parts of the eye, many people state that Recommended Site the operation can be really risky.\nTo puts it simply, a simple error could nearly cause an individual's lifetime blindness. Thus, it is crucial to think about many factors before choosing whether LASIK eye surgical treatment is the right restorative measure one has to undergo.\n2. It is not a ideal procedure\nLASIK eye surgical treatment might fix your vision but it does not always indicate that it can provide you a ideal vision. Even if analytical reports reveal that 70% of the clients might have 20/20 vision, this does not always suggest they have ideal vision also.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the perfect eye surgical treatment the method the majority of people see it\nConversely, the examination of the structural part of the eye might be made in a number of ways. It ought to be well remembered that a client with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a effect. The look of the eye can alert the physician and the patient to problems in some disturbances of other parts of the body even prior to other signs provide themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://cd-us.struers.com/en/Knowledge/Microscopy","date":"2024-02-27T07:36:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474671.63/warc/CC-MAIN-20240227053544-20240227083544-00085.warc.gz","language_score":0.9002343416213989,"token_count":286,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__12568950","lang":"en","text":"Types of Microscopy\nFour types of microscopy are used in materialographic testing, depending on the nature of the workpiece and the object of investigation, and they are described below.\nIn optical microscopy different filters are used to improve contrast and emphasize specific features based on material properties. This can be achieved with magnifications typically ranging from 2.5 times up to 1,000 times. In materialography, reflected light is the most commonly used type of light optical microscopy. Transmitted optical microscopy is also used, but mainly for mineralogy specimens.\nStereo Optical Microscopy\nThe stereo microscope is an optical microscope variant, designed for low magnification observation of a specimen, using the light reflected from the specimen surface.\nScanning Electron Microscopy\nA scanning electron microscope (SEM) is a type of electron microscope that produces images of a specimen by scanning the specimen surface with a focused beam of electrons. The electrons interact with the atoms in the specimen, producing various signals that can be translated into information about the surface topography and the composition of the specimen.\nTransmission Electron Microscopy\nTransmission electron microscopy (TEM) uses a beam of electrons transmitted through an ultra-thin specimen and that interacts with the specimen as it passes through it. Generated signals can be translated into various types of information, including information on the type and orientation of individual crystals.","domain":"optical_engineering"}
{"url":"http://www.printbuyer.com.au/page24.htm","date":"2013-05-24T05:43:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704234586/warc/CC-MAIN-20130516113714-00042-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9100509881973267,"token_count":1139,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__131301795","lang":"en","text":"What is Lenticular?\nLenticular 3D graphics is the process whereby you add dimension and/or motion to your printed marketing displays. \"Lenticular\" means \"pertaining to lenses,\" and \"lenticules\" are the plastic lenses that create the illusion of dimension in depth imaging. Placing special lenses, or \"lenticules,\" over a two dimensional print allows the eye to simultaneously view alternating sections of multiple images. (See below: How it Works)\nLenticular 3D images do not require any special equipment to view, and are adaptable to many types of installations and uses. You can utilise Lenticular imaging for any project imaginable: Direct Mailers, Packaging (hang tags, labels, package wraps as well as 100% Lenticular containers and cartons), In-Store Retail Graphics, POS, Posters, Murals -- any time you need people to stop and take notice!\nHow It Works\nLenticular graphics are made up of two components: a lenticular lens, and a flat printed image. The lens is a sheet of material that feels like grooved plastic. The grooves and ridges are actually lenticules which focus your sight on different parts of the underlying picture. The printed picture is actually made up of multiple pictures which are printed in alternating lines. A narrow band of each image will be printed sequentially with narrow bands of each additional image. The effect is actualized when mounted to a sheet of lenticular lens specially chosen for the desired effect.\nThere are two categories of effects that can be achieved with Lenticular imaging: 2D (Flip) and 3D. Additionally, you can combine both Flip and 3D effects.2D (Flip) images\nIf two images will be combined (called a 2D (Flip), the composite print will include a narrow band of image #A, followed by a narrow band of image #B. That pattern of printing is continued (A-B-A-B-A-B) for the entire composite print. This process is called \"interlacing.\" When viewed under the lenticular lens, a different view of the image is received depending on your viewing angle. This creates the special effect. Different lens patterns and materials are used depending on the size of the printed piece and the viewing distance required. This simple yet visually stunning 2D (Flip) effect is illustrated below in a job we did for a major client:\n3D Depth images are a little more complicated. Parallax is the bio-physical phenomenon that allows us to perceive the world in three dimensions. Normally, parallax is produced by the separate viewing angles of our eyes. Our brain compares the different views, from right and left eyes, processes the data, and creates what we see as a three-dimensional world. Think of stereoscopic viewing. Remember looking through a ViewMaster®? Each eye would see a different slide. Each slide would be a different viewing perspective of the same subject matter, and via parallax your brain would perceive the composite image as having depth.\nUsing the same technique described for flip effects, vastly superior 3D Depth effects can be achieved by imaging alternating strips of the same image viewed from different angles. When an image interlaced for 3D is placed under a lenticular lens, we invoke the parallax phenomenon to trick the brain intoseeing depth and volume in a two-dimensional image. Please note that this unique technique does not require any sort of 3D glasses to be worn to achieve the effect.\nBasic \"Flip\" effects are the most common effects that can be produced by Lenticular graphics. A \"flip\" or \"view\" refers to each image that is interlaced into a Lenticular graphic. A \"Two Flip\" forms the foundation of flip effects, and results in two images \"flipping\" back and forth as the viewing angle of the printed piece is changed. Two-flips are the most dramatic of the flip effects, and are fantastic for demonstrating Before-and-After, Old-versus-New comparisons, etc.\nMore than two images can be interlaced together to produce \"Multi Flip\" Images. In addition to two-flip image transitions, you can employ three or more image transitions. Special effects like \"Zoom\" and \"Animation\" can be achieved utilizing the multi-flip technique.\nAnimation & High Definition Lenticular\nAnimation effects mimic the smooth movement of video. HD Lenticular(R) from Big3D provides the highest image resolution available anywhere -- imagine reproducing 5-15 seconds of High Definition footage in a Lenticular postcard -- its like video in your hand!\nZooms and morphs are special multi-flip effects that look just like they sound. Zooms give the illusion of all or a portion of an image moving forward and backward, and Morphs are the conversion of one image into another.\n3D Lenticular is truly a spectacular and unique application of lenticular graphics. The illusion of depth is so convincing that the viewer is captivated by the realism! To create a 3D image, all the elements in the 3D \"scene\" are placed in separate layers. Special digital processing is employed to create depth and volume to those layers. When the processed image is viewed through the Lenticular lens, the 3D depth is perceived -- all with the naked eye!\nThe most complex of all Lenticular effects: Flip effects with 3D! Imagine images zooming and or flipping, all with 3D depth!","domain":"optical_engineering"}
{"url":"https://www.hts-banen.nl/bedrijfspresentatie/videology-imaging-solutions-europe-b-v-/","date":"2019-09-19T02:17:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573415.58/warc/CC-MAIN-20190919015534-20190919041534-00073.warc.gz","language_score":0.9223561882972717,"token_count":158,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__139120314","lang":"en","text":"Videology Imaging Solutions Europe B.V.\nVIDEOLOGY IMAGING SOLUTIONS is an OEM manufacturer of industrial-grade video cameras and related devices, systems and software. Our cameras are used in a broad spectrum of applications including surveillance, gaming, law enforcement, life sciences, aerospace, machine vision, biometrics and diagnostic imaging.\nVideology specializes in meeting the custom requirements of OEMs and large-scale integrators. We are continuously developing new products, from conventional analog CCD & CMOS cameras to USB & Internet Protocol (IP) systems.\nOur products are integrated by OEM customers into systems across North America and Europe.\nVideology is ISO 9001 registered and has manufactured cost-effective imaging equipment at our United States facility since 1991.","domain":"optical_engineering"}
{"url":"https://makerfabs.com/index.php?route=product/category&path=59_85","date":"2017-11-23T11:03:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806771.56/warc/CC-MAIN-20171123104442-20171123124442-00373.warc.gz","language_score":0.835547685623169,"token_count":309,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__47890940","lang":"en","text":"This is a NTC thermistor temperature sensor which is used in the industrial applications such as ..\nThis Digital LED Voltmeter measures the voltage at a particular point of the system. It has been ..\nThis Signal Axis Analog Gyro module is based on an angular velocity sensor (Murata-ENC-03R) that u..\nThe reflectivity of infrared light varies with the color and distance of the reflecting surface. ..\nThis 2- Axis Analog Gyro module is based on an angular velocity sensor (Murata-ENC-03R) that uses ..\nThe L3G4200D is a low-power three-axis angular rate sensor able to provide unprecedented stablili..\nThe ADXL346 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) ..\nFreescale’s MAG3110 is a small, low-power, digital 3-axis magnetometer. The device can be used in..\nThe ADS1115 is a very small, low-power, 16-bit, delta-sigma analog-to-digital converter (ADC). T..\nThis a simple 6 digital counter, it counts pulse 12V, from 0~999999, can be used to DIY projects ..\nThis kind of 4 way joystick is originally used in arcade game, but we think it is a good solution..\nThis SHARP distance sensor bounces IR off objects to determine how far away they are. It returns ..","domain":"optical_engineering"}
{"url":"https://claytonfirearms.com.au/products/scopes/meopta/meopta-meopro-618x50-859-clayton","date":"2021-06-25T12:06:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487630175.17/warc/CC-MAIN-20210625115905-20210625145905-00527.warc.gz","language_score":0.8835224509239197,"token_count":431,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__62567960","lang":"en","text":"PICTURE IS NOT CORRECT THE TARGET VERSION HAS AN EXPOSED TURRET\nAffordable Long Range Precision Performance\nThe new MeoPro 6.5-20x50 is the most technologically advanced, precise long range optical instrument we have ever produced. While bringing a new level of precision adjustment to both the bench and the field, the new 6-18x remains surprisingly affordable. Featuring our all new MeoTrak II posi-click adjustment system with low profile target turrets, this scope offers extremely precise 1/4\" @ 100 yards, windage and elevation settings, superior tracking capabilities and exceptional, shot after shot repeatability. A third turret, side parallax adjustment keeps the second focal plane reticle anchored to the intended point of aim, thus ensuring precise bullet placement on target.\nMB550 Ion Assisted lens coatings provide an industry leading light transmission of 99.8% per lens surface. Assembled at our U.S. headquarters, the new MeoPro 6.5-20x riflescopes are waterproof, fogproof, shockproof and fully covered by Meopta's North American Lifetime Transferable Warranty.\nThis reticle enables shooters to compensate for the amount a bullet drops over a particular distance. Markings below the reticle’s center indicate the expected impact point at a given distance, with lower markings showing the expected impact point at longer distances. The amount of bullet drop at a given distance depends on the type of firearm and ammunition being used. The following guidelines indicate the approximate bullet drop for a center fire hunting rifle such as a .30-06 or 270 at the highest power. However, testing at a range is needed to more precisely determine how much bullet drop to expect at a given distance for a particular firearm. The BDC reticle markings assume that the rifle has been sighted in at 100 yards on the highest power. Therefore, bullet drop at 100 yards, indicated by the reticle’s center, would be zero. Provides accurate holdovers for 200, 300, 350, 400, 450 and 500 yards out. @ maximum magnification.","domain":"optical_engineering"}
{"url":"https://infinitekart.dubaistore.com/camera-accessories/sony-28-75mm-f28-smooth-autofocus-motor-full-frame-lens-for-sony-mount-digital-slr-cameras-black/5143290793","date":"2024-02-29T10:44:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474808.39/warc/CC-MAIN-20240229103115-20240229133115-00215.warc.gz","language_score":0.8547927141189575,"token_count":248,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__89508202","lang":"en","text":"Sony 28-75mm f/2.8 Smooth Autofocus Motor Full Frame Lens for Sony Mount Digital SLR Cameras, Black\n- Extra 10% OFF - Use Code DSPR24\n- View Offer Details\nzoom_in Click to zoom\nWith its precision optics, compact size and wide 75 degree angle of view, the SAL2875 wide-angle lens is an excellent choice for sharp, high-contrast shots when you're working indoors, with people in groups, or in landscapes and urban scenes. It's also ideal when you want a panoramic or inclusive shot with lots of detail. Mounted on your compatible Sony Alpha DSLR camera, this lightweight wide-angle lens provides a near-standard 42mm focal length (35mm equivalent). With wide-angle optics and deep depth of field, this lens creates sharp, high-contrast photos that capture more detail in both foreground and background; its compact size and light weight make it an ideal lens to carry when traveling or for long shooting sessions; and a built-in sliding lens hood protects your optics and makes it faster to switch lenses.\n- Accessory Type: Lenses\n- Brand: Sony\n- Product Brand: Sony","domain":"optical_engineering"}
{"url":"http://www.enigmaprotector.com/ru/help/manual/1ea0ada6ed65a541a0b3ca734665a99f","date":"2017-02-28T12:11:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501174159.38/warc/CC-MAIN-20170219104614-00060-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.8741507530212402,"token_count":214,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__114901205","lang":"en","text":"Indicates whether the image should be changed, without distortion, so that it fits the bounds of the image control.\nSet Proportional to true to ensure that the image can be fully displayed in the image control without any distortion such as occurs with the Stretch property. When Proportional is true, images that are too large to fit in the image control are scaled down (while maintaining the same aspect ratio) until they fit in the image control. Images that are too small are displayed normally. That is, Proportional can reduce the magnification of the image, but does not increase it.\nWhen the image control resizes, the image resizes also.\nTo resize the image so that it fits exactly in the image control, even if that causes distortion, use the Stretch property instead.\nTo resize the control to the image rather than resizing the image to the control, use the AutoSize property instead.\nThe default value for Proportional is false.\nNote: Proportional has no effect if the Picture property contains an icon.","domain":"optical_engineering"}
{"url":"https://www.tsoingram.com/eyeglasses-contacts/zeiss-photofusion-lenses/","date":"2023-05-30T00:32:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644915.48/warc/CC-MAIN-20230530000715-20230530030715-00766.warc.gz","language_score":0.8633597493171692,"token_count":313,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__8077958","lang":"en","text":"PhotoFusion® by ZEISS. Fast self-tinting lenses.\nEyeglasses that adjust to any light condition – full sunlight, indoor lighting and everything in between. PhotoFusion® by ZEISS lenses do it all – and do it fast.\nFast darkening. Fast fade back.\nPhotoFusion polycarbonate and high-index lenses darken up to 20% faster and fade back up to two times as fast as previous photochromic lenses offered by ZEISS at TSO in San Antonio.\nVery clear indoors. Very dark in sunlight.\nTexas State Optical in San Antonio, TX fits patients with PhotoFusion by ZEISS lenses for excellent vision under all lighting conditions.\n- Indoors, and outdoors at night, they remain clear.\n- Outdoors on cloudy days, they respond to reduced solar UV rays and turn semi-dark.\n- In full sunshine the lenses are hit with the full intensity of the sun’s rays, and they darken to a true sunglass tint.\n100% solar UV protection for your eyes.\nNo matter how dark or clear they are, PhotoFusion by ZEISS lenses at your San Antonio, TX TSO always block 100% of harmful solar UV rays. Your eyes will not only be comfortable in all lighting conditions, they’ll be fully protected.\nPhotoFusion by ZEISS is available in gray and brown tints. Make an appointment today at TSO Ingram at the Ingram Park Mall.","domain":"optical_engineering"}
{"url":"http://www.datascan.co.za/products/8-ck3x-alphanumeric-long-range-with-batterys","date":"2020-09-24T07:56:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400214347.17/warc/CC-MAIN-20200924065412-20200924095412-00709.warc.gz","language_score":0.8462938070297241,"token_count":185,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__238287412","lang":"en","text":"CK3X AlphaNumeric,Long Range - with batterys\nThe EX25 from Intermec is the industry's first bar code 2D imager that provides integrated near/far scanning technology featuring unparalleled flexibility to read 1D and 2D barcodes, omnidirectionally at distances from 6 inches to over 50 feet (15cm to 15m). This 3rd generation of revolutionary scanning technology translates into significant increases in user productivity.\nThe new EX25 advances scanning technology and deliver new levels of customer satisfaction with such enhancements as an increased reading range of more than 30%. Its wider optical angle allows reading at closer distances than ever before.\nComes with battery\n- 0.5 Kg\n- Lead Time:\n- 24 hours\n- Intermec Code:\n- Stock Code:\n- HARD-CK3X-SCANNEREX25 (Alpha-Numeric)","domain":"optical_engineering"}
{"url":"https://baronnkzw.com/laser-glass-cutting/","date":"2023-04-02T12:36:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950528.96/warc/CC-MAIN-20230402105054-20230402135054-00242.warc.gz","language_score":0.9504680037498474,"token_count":391,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__10793686","lang":"en","text":"Laser cutting is a precision cutting method widely used in industrial manufacturing. Laser cutting allows a level of accuracy unmatched by any other cutting method. A high-powered laser is directed at the material to be cut. The material burns, melts or vaporizes, leaving a high quality finish.\nApart from the common materials such as wood, plastic and metal, laser cutting is also widely used in the processing of glass. Glass has become sheets of plywood an important component of a large number of applications. Its use is not just restricted to windows and bottles but has expanded to telecommunications and information technology. These modern applications require a higher level of accuracy and precision that cannot be matched by traditional methods.\nTraditional glass cutting methods make direct contact with the surface, increasing chances of unwanted scratches and abrasions. Moreover, material losses and glass dust are other problems faced in the conventional process.\nThe use of lasers has revolutionized the art of glass cutting. The laser beam is used to produce highly complex and accurate shapes with a fine edge finish. The power of the laser beam ranges between 1000 to 2000 watts. Most laser cutters are integrated into an enclosed machine with state-of-the-art software. Since the laser used is a “class 4” laser, care is taken to keep the user away from direct contact. The CO2 laser is the most common device used in glass cutting.\nThe advantages of laser cut glass are many. Apart from the superb quality edges, flaking, chipping and micro-cracks are almost completely eliminated. Moreover, laser cut glass is up to 3 times more durable than conventional cut glass. Since cutting oil is not used in the process, the glass washing process is also minimized.\nLaser glass cutters can be used to cut glass of any thickness with an equal amount of accuracy. From decorative articles and frames to quartz crystal oscillators and display glasses, the use of these devices is limitless.","domain":"optical_engineering"}
{"url":"http://www.trafficineurope.eu/download-pdf-optical-spectroscopy-of-inorganic-solids-book-by-oxford-university-press-usa.pdf","date":"2016-10-27T19:04:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988721387.11/warc/CC-MAIN-20161020183841-00460-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.8536460995674133,"token_count":191,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__122603040","lang":"en","text":"This text describes the technique of optical spectroscopy applied to problems in condensed matter physics. It relates theoretical understanding to experimental measurement, including discussion of the optical spectroscopy of inorganic insulators, with many illustrative examples. Symmetry arguments are developed from a formal group theoretical basis and are frequently used, and a special effort is made to treat the subject of lattice vibrations and to show how these can affect the spectroscopic properties of solids. The elements of laser theory are developed, and the authors also explore the use of optically detected magnetic resonance techniques for the investigation of semiconducting materials.This text describes the technique of optical spectroscopy applied to problems in condensed matter physics.\n|Title||:||Optical Spectroscopy of Inorganic Solids|\n|Author||:||B. Henderson, G. Frank Imbusch|\n|Publisher||:||Oxford University Press, USA - 1989|","domain":"optical_engineering"}
{"url":"https://www.bureauveritas.com/wps/wcm/connect/bv_com/group/home/about-us/our-business/cps/whats-new/bulletins/european_commission_safety_laser_products","date":"2019-03-23T23:55:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912203093.63/warc/CC-MAIN-20190323221914-20190324003914-00207.warc.gz","language_score":0.8852208256721497,"token_count":642,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__180945833","lang":"en","text":"01/01/20 08h00 - 16h30\n01/01/20 08h00 - 16h30\nDownload PDF of Bulletin\nOn 5 February 2014 the European Commission adopted new Commission Decision 2014/59/EU on the safety requirements to be met by European standards for consumer laser products pursuant to Directive 2001/95/EC on general product safety.\nCompliance with these requirements ensures that a laser product is safe to be used by consumers.\nDecision 2014/59/EU entered into force on 5 February 2014.\nLaser products, in particular hand-held, battery-powered laser pointers that pose a risk of damage to sight and to the skin have become widely available to consumers.\nThere is a current European standard for laser products “EN 60825-1:2007 ‘Safety of laser products – Part 1: Equipment classification and requirements” but compliance with that standard does not ensure that a laser product is safe to be used by consumers.\nWithout hampering technical innovation, it is therefore appropriate to determine the safety requirements for consumer laser products in order to be able to submit a request to the European standardization bodies to develop a new European standard or amend the current European standard.\nDecision 2014/59/EU specifies definitions:\n>> for consumer laser product: product intended for consumer, constituting (or incorporating) a laser (or laser system) and during operation permitting access to laser radiation;\n>> for child appealing product:\n• product that resembles, by virtue of its form or design, anything that is commonly recognized as being appealing to, or intended for use by, children\n• product has any other feature or characteristic, not necessary for the function of the product, that is likely to be appealing to children\nDecision 2014/59/EU introduces following requirements:\n• in case of any exposure to laser radiation that could occur under any conditions of use, child appealing consumer laser products shall not cause damage to the eyes or the skin,\n• in case of any exposure to laser radiation that could occur under normal or reasonably foreseeable conditions of use, all other consumer laser products shall not cause damage to the eyes or unintended damage to the skin,\n• conformity with safety requirements shall be achieved by technical means,\n• all consumer laser products (except those child appealing), if exposure to laser radiation that would cause damage to the eyes or the skin could occur under conditions of use other than normal or reasonably foreseeable conditions of use, shall carry appropriate warning labels and shall be supplied with user instructions that contain all relevant safety information.\nFor more details, please view the full text of Decision 2014/59/EU (Published in OJEU L36 of 7 February 2014) at: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2014:036:0020:0021:EN:PDF\nIf you have any comments and/or questions, please contact your customer service representative or email Paule PRIMET at: email@example.com\nConsumer Products Services\nSend an e-mail","domain":"optical_engineering"}
{"url":"https://corvusdefensio.com/shop/corvus-defensio-ta33-apm-mount/?lang=en","date":"2024-03-01T03:26:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474948.91/warc/CC-MAIN-20240301030138-20240301060138-00705.warc.gz","language_score":0.9308534860610962,"token_count":648,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__52552458","lang":"en","text":"The Corvus Defensio Aimpoint Micro assembly fulfills one of our long cherished wishes. With regard to optics systems for assault rifles and semi-automatic rifles, we have long been convinced by so-called “piggyback” solutions for many different reasons. Since nothing can replace a classic red dot sight without magnification – and parallax free at best – in close range and any lighting condition, modern rifles in sports and military are most likely seen with these kind of sights. But in both areas, these weapons can be used effectively up to 500 meters. Here (and in the area of target identification also at closer distances), however, magnifying optics are of greater advantage. One approach is to use variable magnification optics, which can typically be magnified from 1-3x up to 1-10x and used as a red dot sight at simple magnification. The disadvantage of these systems, however, is usually that even with 1x magnification it must be targeted through an optical lens system, including effects such as exit pupil, correct eye relief, sometimes slight distortions and the so-called “eye box” (the picture is only visible in a limited area). Furthermore, each time the magnification is to be adjusted, the support hand must be removed from the weapon to operate any kind of lever.\nWith piggyback systems one can combine the advantages of both “optics worlds”. But these solutions bring various disadvantages. In most cases, the height of the piggyback mounted red dot sights is too high to ensure a neat attack with at least the touch of the chin to the stock. In addition, the red dot sights used are almost exclusively mini red dots based on the principle of open construction (eg Docter Sight, RMR, MRDS, etc.). This makes them particularly susceptible to contamination, as even a small foreign body over the exit point of the light beam causes the point to be invisible.\nCorvus Defensio now dares claim to have developed a solution for the most compact, elegant, robust and reliable Red Dot / Optic combination. For the first time it is possible to combine our personally favored optics of both worlds, namely a Trijicon TA33 Compact ACOG with an Aimpoint Micro (H and T models, version 1 and 2 as well as Holosun derivatives) with the lowest possible height. These advantages are particularly evident when this combination is used with a Steyr AUG with the special Corvus Defensio housing rails, as this further reduces the overall height.\nThe Corvus Defensio TA33 APM mount allows direct attachment of Aimpoint Micro and Holosun red dot sights to Compact ACOGs of the TA33 series with mounting bumpers originally designed for Trijicon’s RMR series. Attachment of an Aimpoint Micro still allows ACOG height adjustment control and can be fitted with a clear, hinged Aimpoint protective cover to prevent dirt from entering the assembly and obscuring the ACOG’s eyepiece. Like all our products, the assembly is made of high quality 7075 aluminum and is milled from solid and hard anodized.","domain":"optical_engineering"}
{"url":"https://test.imetrum.com/video-gauge/","date":"2022-05-17T17:31:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662519037.11/warc/CC-MAIN-20220517162558-20220517192558-00345.warc.gz","language_score":0.8709341883659363,"token_count":516,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__169548222","lang":"en","text":"Our image processing and computer vision software, Video GaugeTM, is characterised by its resolution, accuracy and versatility:\n- Measuring motion across a range of applications\n- Ultra-high resolution (sub-micron precision)\n- Reliability of measurement (real-time, multi-point)\n- Operational savings (time and money, ease of use).\nThis advanced software tool delivers fast, ultra-high resolution measurement of displacement, rotation, strain and extension on any material or structure. It manages the control, capture, processing, and analysis functions for all Imetrum’s non-contact precision measurement systems. It is built on top of Imetrum’s patented sub-pixel pattern recognition technology.\n- Measure anything anywhere, using the most robust pattern tracking algorithms available.\n- Measure what others can’t see, with the highest resolution image processing algorithms (up to 1/500th pixel).\n- Simple to learn, use and calibrate – half a day’s training will get you up and running.\n- The ultimate in flexibility – a toolbox full of virtual measurement tools including LVDTs, strain gauges, extensometers and tilt meters that can be set at any orientation.\n- Real-time measurement of 100s of points.\n- In-depth analysis via multiple camera support\n- Further in-depth post-process analysis of video archives, including from high speed cameras and microscopes.\n- Record and analyse data with precisely synchronised external analogue and digital data streams.\n- Understand your results easily with intuitive graphical data displays.\n- Operate efficiently, with on-board data and video management tools as well as easy export into other applications.\nWe provide the most robust point tracking and digital image correlation (DIC) software available. Our image processing algorithms can continue to monitor and measure even in the harshest of outdoor environments. View our robust monitoring video showing timber, concrete and a target behind glass at a distance of 50m, over several day/night cycles, including during fog and rain.\nHow to Set Up and Use Video Gauge for Calibrated Displacement\nRobust monitoring using an imaging total station\nAccuracy of Imetrum system for displacement measurement","domain":"optical_engineering"}
{"url":"https://www.montajestemon.com/en/instalacion-de-redes-de-telecomunicaciones-2/","date":"2020-08-07T18:27:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737206.16/warc/CC-MAIN-20200807172851-20200807202851-00239.warc.gz","language_score":0.7979898452758789,"token_count":186,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__158165104","lang":"en","text":"TENDIDOS E INSTALACIONES DE REDES DE TELECOMUNICACIONES\nWe perform the installation of all types of telecommunication networks and structured cabling systems. We install cables aerially (between poles or houses), buried underground, pulled through conduit, or in premises. We use single-mode and multi-mode fiber optic cable, coaxial cable and twisted-pair cable.\nWe use cable blowing machines for the fiber optic cable laying and the Fujikura S60 and S70 fusion splicers to perform fusion splices. We always test our installation with power meters and certify it when needed with the JDSU MTS 6000 and 8000 OTDRs.\nBesides, we are a company authorized by Telefónica, Vodafone, Orange, Adif, and DGT to perform fusion splices and the certification of the installations using an OTDR.","domain":"optical_engineering"}
{"url":"https://brazillive.nl/02-28/laser-cutter-filtration-system-4569.html","date":"2020-02-29T11:50:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875149238.97/warc/CC-MAIN-20200229114448-20200229144448-00051.warc.gz","language_score":0.862003743648529,"token_count":1532,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__17115106","lang":"en","text":"UAC The UAC 2000 & 4000 effectively remove exhaust air from laser material processing systems and capture the smoke and particulate produced when laser processing materials, using a unique fourstage filtration system. Sensors monitor each stage of the filtration system and alert the user when filter Build a Laser Cutter Fume Extractor: 14 Steps (with Pictures),Build a Laser Cutter Fume Extractor: I built my first laser cutter in 1996 and learned right away that laser cutters \"stink\". Well, at least the fumes from cutting smell awful and are quite harmful to breath. After trying several fume extraction options, back in 2002 I found the Elec\n130W Thickness Acrylic Laser Cutter with Air Filtration ,130W Thickness Acrylic Laser Cutter with Air Filtration System UG9060L UPGOAL Products Made In China, China Trading Company. 130W Thickness Acrylic Laser Cutter with Air Filtration System Appliion Appliion Industry : Model Field(Construction Model,Aviation navigation model, wooden toys), advertising filed,decorative and decorating, craft gift industry, electronic, garments and Build a Laser Cutter Fume Extractor: 14 Steps (with Pictures),Build a Laser Cutter Fume Extractor: I built my first laser cutter in 1996 and learned right away that laser cutters \"stink\". Well, at least the fumes from cutting smell awful and are quite harmful to breath. After trying several fume extraction options, back in 2002 I found the Elec\nEpilog Laser Engraving and Cutting Machine Systems ,Epilog Laser engraving machines for etching, cutting, and marking systems affordable, easytouse, and versatile. Our original fiber laser system is still going strong, with a reputation for highquality marking and robust mechanics. Laser Machines. Laser engraving, cutting, and marking machines of all sizes for any appliion Laser Fume Extractor Sentry Air Systems,Many laser appliions produce hazardous fumes that can have negative health effects on operators and potentially damage expensive equipment. Sentry Air Systems offers several styles of source capture laser fume extractors that can be easily integrated into a variety of laser systems.\nFume Extraction & Filter Technology for the Laser Industry ,Our advanced extraction systems remove contaminants invisible to the human eye, whether generated by CO 2 laser systems, found in high speed packaging lines, solid state YAG lasers or new generation optical fibre technologies.. Features such as advanced filtration, flow rate control and our revolutionary Intelligent (iQ) Operating System, mean our units help manufacturers protect valuable Laser fume extraction and filtration solutions from ULT,You utilize a laser system and look for an extraction unit that prefectly meets the requirements of your processes and appliions? The LAS equipment series covers the entire range of technologies for laser fume extraction and laser dust filtration – for any possible laser process in many industrial branches as well as handicraft, medical or\nFume Extractors for Laser Engraving & Laser Cutting ,Laser Fume Hazards The particulate and fume byproducts of laser engraving and laser cutting operations can be hazardous to both the operator and the laser system itself. Conditions vary depending on the material being marked or cut, but many of these processes can produce respiratory hazards that may lead to acute or longterm negative health effects.Fume Extractors Laser Cutter, Engraver, & Marking Machines,A laser fume extraction system will connect to the laser machine and filtrate the VOCs before recirculating back into the environment. Without such a system you would need to exhaust the VOC's out doors much like you would with a residential dryer set up.\nDremel LC40 Laser Cutter Shop Dremel,The Dremel DigiLab LC40 laser cutter bridges timehonored craftsmanship with cuttingedge creation by ushering in the new age of digital fabriion for inventors, entrepreneurs, artists and hobbyists.Dremel LCFS01 Filtration System Shop Dremel,Exhaust Management Methods. During operation, laser cutters generate exhaust that may be hazardous to health. Always operate the Dremel LC40 Laser Cutter with proper exhaust ventilation and/or filtration, and always operate in a wellventilated area.\nFA1Mini Fume Extractor for Laser Cutters by Fumex, Inc.,FA1Mini Laser Fume Extractor for Laser Cutters The Fumex FA1 Mini laser cutter fume extractor is an air filtration system for laser cutting. It utilizes a high performance blower and a 4 stage hybrid filter system to capture and treat the hazardous particulates and gases generated in most laser cutting processes. Two large capacity prefiltersLaser exhaust systems Atmos for Trotec laser machines,The Atmos laser exhaust system ensures safe and clean operation of your laser system. It removes dust and gas from processing space and filters odors that occur during laser processing through its activated carbon filters. With this the Atmos laser exhaust system facilitates the best possible laser engraving and laser cutting quality.\nLASER CUTTERS ehs.washington.edu,All laser cutter systems must be equipped with a fume exhaust system and filtration system that meets manufacturer specifiions. These fumes or air contaminants can damage the machine and harm your health. If the air filter or exhaust system is malfunctioning, immediately stop operating the laser cutter and notify your supervisor.Laser Cutting Cheat Sheet productrealization.stanford.edu,The laser cutters in Room 36 are 60W CO2 lasers that blast through the workpiece and send the vaporized particles through a filtration system. It is critical that the filtration units are ON whenever the laser cutters are in use. The filters share an outlet with the laser cutters, so if your laser cutter is on, your filter is on, too. Check\nLaser Fume Extraction for Laser Cutting Fumex Inc ,A Fumex air filtration specialist can help calculate the right size fume extraction system for your appliion. Call today. Proper noise control: This must be designed into the system. Fan exhaust from fume collection systems can be very noisy, creating a fatiguing and hazardous environment. Our laser cutter fume extractors come with Air Filtration Units for ULS Laser Systems ulsinc.com,Air Filtration Units. Laser material processing produces byproduct comprised of particulates (smoke) and volatile organic compounds or VOCs (fumes) which must be removed from the material processing area of a laser system and handled in a safe and appropriate manner.\nLaser Fume Extractors for Laser Engraving and Marking,Effective laser fume extraction is critical to laser systems due to the possibility of toxic, carcinogenic corrosive or extremely odorous contaminants that can be generated. All of our laser fume extractors feature multistage filtration incorporating a 2\" Prefilter section, 2\" Certified HEPA filter and active carbon modules.Emblaser 2 Laser Cutter & Engraver,Install the addon fume filtration system and your laser cutter can be used safely indoors. AirAssist: One of the issues with laser cutting is the burn marks present on the material. With the smart AirAssist addon function, a stream of air is simultaneously directed onto the material as the laser cuts, significantly reducing the marks.","domain":"optical_engineering"}
{"url":"https://m.toplt.com/en/h-pd-135.html","date":"2022-01-17T15:55:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320300574.19/warc/CC-MAIN-20220117151834-20220117181834-00244.warc.gz","language_score":0.8613237142562866,"token_count":234,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__61043189","lang":"en","text":"IMM25 lens range\nVarifocus imaging system, achromatic cemented lens\nHigh definition imaging\nHigh resolution of the lens\nProvide 12 zoom range options\nFor example, the varifocus imaging optic system IMM25-Z1830 has a zoom range from 18 to 30 degrees, a Φ25mm iris is used in this system and the zoon function is done by a combination of two achromatic cemented lenses. When a customer purchases IMM25-Z1830 from this E-shop, he/she will get these two achromatic cemented lenses.\nNote: To get better imaging quality, the LED having smaller luminous surface is the preferred light source option, and a combination of two or three plane-convex lenses is also used as condenser.\n(Real pictures taken by Nikon D780）\nPlease select the zoom options that you prefer, and don't forget to buy the converging lens for IMM25.\nWe provide two options of the converging lens, please click the following links:","domain":"optical_engineering"}
{"url":"http://dhmri.org/services-support/microscopy/zeiss-palm","date":"2018-12-17T10:31:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376828501.85/warc/CC-MAIN-20181217091227-20181217113227-00583.warc.gz","language_score":0.8028303384780884,"token_count":172,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__107222334","lang":"en","text":"A fully computer controlled microdissection system built on a Zeiss Axiovert fluorescence microscope stand. Tissue sections are placed on special membrane coated slides. Areas for microdissection are selected on a computer monitor using various drawing tools after which microdissection occurs. The special membrane plus tissue is cut through in the selected areas using a nitrogen UV laser and areas are lifted from the slide into a waiting receptacle (Eppendorf tube) through a laser catapulting method.\nObjective Lenses: 5X/0.25 FLUAR, 10X/0.50 FLUAR, 20X/0.40 Ph2 Korr LD Plan-Neofluar, 40X/0.60 Korr LD Plan-Neofluar, 63X/0.75 Korr LD Plan-Neofluar","domain":"optical_engineering"}
{"url":"http://craigshipp.blogspot.com/2014/01/sony-a7r-using-nex-glass-with-audrey.html","date":"2018-06-23T13:58:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865081.23/warc/CC-MAIN-20180623132619-20180623152619-00090.warc.gz","language_score":0.9496021866798401,"token_count":194,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__40527861","lang":"en","text":"Tuesday, January 07, 2014\nSony A7r using NEX Glass with Audrey Scherer\nWe look at using NEX crop sensor lenses on the all new Sony A7r which is a Full-Frame sensor camera. See for yourself that the video clips look great. Stills are first rate as well and are still 16mp in size. So you may not need to run out and buy the expensive new full-frame glass. We tested the Zeiss 24mm f1.8 e-mount; the Sony 50mm f1.8 e-mount; the Sony 16mm f2.8 e-mount and the 18-55 kit lens that I got with my NEX-7. All worked great but the standouts were the Zeiss 24mm and the Sony 50mm both f1.8. The OSS also works on the 50mm f1.8 but not on the 18-55 kit lens for some reason.","domain":"optical_engineering"}
{"url":"http://tecotec.com.vn/en/news/barrel-testing-system-part-1","date":"2022-08-13T23:51:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571989.67/warc/CC-MAIN-20220813232744-20220814022744-00039.warc.gz","language_score":0.8959862589836121,"token_count":784,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__147414645","lang":"en","text":"Systems equipped with modern weapons increasingly require maintenance inspection must take place on a regular basis, to ensure the accuracy and safety during use. For the artillery system, the regular inspection and maintenance of the barrel is always a very important task requiring high precision. To meet this demand, the world now has a number of manufacturers have been developing and testing systems to serve barrel test applications measuring the types of barrel from inside diameter measuring distortion, curvature, applications to measure the parameters of helical grooves, or defects in the barrel.\nBarrel Testing System is one of the test solutions leading barrel application of advanced technologies to help increase accuracy and ease of use capabilities to meet most of the demand the test needs of the user.\nBarrel Testing System use laser triangulation sensor is not exposed. This is the use laser sensors operate on the principle of triangulation, allows accurate measurement of distance parameters, locate, scan and detect surface deformation. According to the principle of triangulation (triangulation), the sensor emits a laser beam to the target, the reflected beam will be recorded on a lens located inside the sensor (adjacent to the laser source).\nThrow lens will converge photo of destination on a linear array camera. Any change in the distance between the sensor and the target will immediately change the angle of the reflected beam, thereby changing the position of the pixels on the receiver element (camera). The position of the pixel to be processed to calculate the distance to the target.\nSystems are intended for contactless measuring of inner diameter and profiles of gun barrels, cylindrical and taper pipes, progressive cavity stators, turbodrills and so on.\nMultisensor measurement by stationary laser sensors\nInner surface laser scanning by rotating sensors\nTransmission Module: enables the ability to push the probe can be moved automatically along the tube lumen during the test.\nVideo inspection channel: Video inspection channel is switched on immediately after plugging in the probe. The user can manage lighting via special form in software. Using this form the operator can reach quality lighting on all parts of the pipe. The image from camera can show in software and enable user can save video file, image file.\nNon-straightness (warpage) PSD sensor: The non-straightness (warpage) channel consists of a PSD matrix and stabilized laser source. The laser source is placed at one end of the tube. The laser beam emits through the pipe. The radiation of a semiconductor laser is focused onto PSD matrix located inside the self-moving probe. A position of the laser point on the matrix is determined permanently and allows calculating an offset between the probe and the laser beam. Since the probe is centered in the pipe and follows the profile of the pipe during measuring, the system can measure the non-straightness (warpage) using the position of laser point on the PSD matrix.\nTemperature sensor: The temperature sensor is designed to compensate for the distortion of the system readings relating to changes in ambient temperature. This makes it possible to achieve high accuracy over a wide temperature range.\nInclinometer: The inclinometer is intended to compensate for the distortion of the system readings relating to possible spin or tilt of the probe.\nLaser distance sensor: The laser distance sensor is located on the rear unit of the probe and intended to determine a position of the probe inside the pipe (distance between the edge of the pipe and the probe).\nb. Using of pipe extender:.\nThe probe carries out measurements over the entire barrel surface excluding the areas (at the beginning and at the end) which do not exceed 60 mm. One may use a special extender (option) allowing measurement of the whole surface.","domain":"optical_engineering"}
{"url":"https://www.edprevent.com/shop/products/infrared-thermography/flir-exx/","date":"2020-10-01T21:05:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402132335.99/warc/CC-MAIN-20201001210429-20201002000429-00439.warc.gz","language_score":0.8578497767448425,"token_count":267,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__117006702","lang":"en","text":"FLIR Exx-Series Features\nIt takes the right tools, FLIR Exx-Series, to quickly identify potential points of failure in an electrical or manufacturing environment. Especially since many of these components are impossible to reach. That is why the FLIR E75, E85, E95 and the new E53 offer superior resolution and precise laser-assisted autofocusing. Coupled with the option of interchangeable lenses, you can target any component. Then survey from top to bottom and avoid costly shutdowns.\nQuick, precise continuous focus\nLaser-assisted autofocus responds instantly to movement, maintaining focus even in cluttered surroundings.\nClear view at any angle\nA vivid 4″ LCD display with a 160° viewing angle helps you keep an eye on the thermal image as you work.\nHigh temperature calibration\nExx-Series cameras offer wide measurement ranges (-20°C to 120°C, 0°C to 650°C, and 300°C up to 1500°C)\nIntuitive interface and navigation\nCapacitive touch screen and convenient menu buttons make it easy to navigate and operate the camera with one hand\nSuperior MSX® scene enhancement\nPatented MSX® technology is now even better, thanks to a re-design that brings the visual and IR cameras closer together","domain":"optical_engineering"}
{"url":"https://freetv4africa.co.uk/the-battle-between-4k-led-screens-and-1080p-led-screens/","date":"2020-03-31T10:17:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370500426.22/warc/CC-MAIN-20200331084941-20200331114941-00217.warc.gz","language_score":0.9665024280548096,"token_count":576,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__217431682","lang":"en","text":"With the advent of 4k LED, the question to the quality of 1080p LED have been raised. Everyone seems getting affected by the airwave of 4k LED craze. The comparisons regarding both of the LEDs quality is been made every now and then. The technology advancement is bringing newer stuff to us as not only an apparent change but also a deep change in quality. The changes in LED technology are ever progressive since the market is warmly welcoming the LED supply by aggressive demand. Everyone seems to long owning a fine quality big size LED screen. The 1080p LED has its numerous demands but the introduction of 4k LED has created a differential future for the demand of 1080p LED.\nThe great facilitation in terms of LED has made the entertainment and business activities a long lasting deal. You can splurge without any hesitation on the purchase of LED stuff since it will be a fine investment of the day. The LED screens are in fashion for the high quality and convenience to usage. When it comes to choosing which of the LED screen, shall one go from the 4k LED and 1080p LED then it becomes a matter of choice and power to purchase. You can first consider over that what matters to you on the priority from quality and price. The quality is of course something that is going to serve you for longer. The best attempt that can you make is investing today in the higher quality LED and to enjoy the high reap.\nThe 4k LED is the high definition LED. It is energized with incredible quantity of resolution pixels to create the most clear, sharp, bright and vibrant. You won’t believe it that a 4k LED screen holds more than 4000 pixels. The incredible lot of pixels delivers highest resolutions you can ever find in the LED that have been in the market. it is the double of 1080p LED screens. The highly fashioned 4k LED screen allows you enjoying the sharpest image by creating the images through micro-pixels. The size of the 4k LED screens is much smaller as compared to the 1080p LED screens that is why it articulates a matchless clarity in the images on the display.\nThe 4k LED screen is known as Ultra High Display for being the only advance LED screen that have been marketed since ever now. The 4k LED is the advanced technology that is made to store a super stunning image creation. The capacity to form an image is adorned through high-resolution count keeping up the pixel size too small and less distant. Since it is the advanced technology, thus it is a house of value added features and specifications. You will find it compatible to the future technology as well. you will find it exclusive in every aspect. The 1080p LED offers double time less pixels. The size of 1080p LED is bigger thus clear image feels less clearer in relevance to the 4k LED screen.","domain":"optical_engineering"}
{"url":"https://www.satinlens.com/index.php/satin-plus-blue","date":"2019-10-19T23:11:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986700435.69/warc/CC-MAIN-20191019214624-20191020002124-00526.warc.gz","language_score":0.8460147380828857,"token_count":334,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__109928977","lang":"en","text":"Increased and cumulative exposure to Blue Violet Light results in -\nThe elderly and children especially appear at the risk of retinal damage from harmful blue violet radiation.\nWHAT IS BLUE VIOLET LIGHT ?\n- Blue violet light possesses wavelength that range from 400nm to 500nm, constitutes part of the visible spectrum.\n- These short wavelength rays cause damage to the eyes much like as the ultraviolet rays.\n- It contributes little to our visual acuity when compared to other wavelengths.\nHOW DOES BLUE VIOLET LIGHT AFFECT THE EYES ?\nBLUE VIOLET LIGHT CAUSES BLURS\n- Focal length of different components of white light is different.\n- When the red colour is focussing on retina, the blue colour which has a shorter wavelength focuses in front of the retina causing an image blurring.\n- Satin+ Blue selectively cuts this blue violet light and hence provides a clearer vision.\nBLUE VIOLET LIGHT I AFFECT CHILDREN’S EYES\n- Children nowadays are exposed to various , digital devices like computers, tablets, and 58 mobile phones etc. which use LEDs that emits 0/0 TV harmful blue violet light.\n- Since their eyes are not yet fully developed, they are naturally less protected from the effects of blue violet light.\n- Also they have larger pupils compared to adults, which lets in more blue violet light.\nTHE SOLUTION - SATIN+ BLUE\nSatin+ Blue is a revolutionary anti-reflective coating that cuts out harmful blue violet light and maintains clear vision through the lens.","domain":"optical_engineering"}
{"url":"http://madebylili.com/experimenting-with-the-camera/","date":"2018-02-18T18:20:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812247.50/warc/CC-MAIN-20180218173208-20180218193208-00212.warc.gz","language_score":0.981623113155365,"token_count":257,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__155204517","lang":"en","text":"I‘ve been playing around with our camera a little bit the last couple days. I was looking for a lens with lower aperture and I just realized the other day that I had this lens the hole time in my bag. It is exactly the lens I was looking for. Tim bought it after a recommendation, and at that time he used the camera a lot more than I did. So I didn’t pay much attention to it. And at the moment it is vice-versa. I have to admit it takes quite a bit to figure out your camera.\nOur camera came with a standard lens and the minimum aperture was 5.6 and I was looking for a lens, where you can lower your aperture a lot more than 5.6. It just doesn’t create that effect I was aiming for. I wanted the object in the front to be focused and the background to be blurred. The lens I used is a fixed 50mm and 1.8, which is perfect for portraits and close up pictures. Here are a couple of my results with the aperture set to 1.8. This next one is my favorite.\nTaken at night with Elliott eating and sitting in his High Chair. In the background you can see our Christmas lights.","domain":"optical_engineering"}
{"url":"https://wildernessdestination.com/products/children-astronomical-telescope-with-binoculars-tripod-for-outdoor-camping","date":"2021-08-02T09:32:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154310.16/warc/CC-MAIN-20210802075003-20210802105003-00046.warc.gz","language_score":0.8766638040542603,"token_count":163,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__38506825","lang":"en","text":"Children Astronomical Telescope With Binoculars, Tripod, For Outdoor Camping\nArrives approximately 30 days after receiving shipping email FREE SHIPPING\nModel Number: children telescope\nThis is a small refracting astronomical telescope, which does not take up space and is suitable for beginners.\nIt is equipped with 3 eyepieces with different magnifications. It allows you to freely match and observe objects of different distances and sizes.\nModerate size, easy to carry and easy to operate.\nThe lens has an anti-cosmic ray layer and an anti-blue light layer, which protects children's eyes; good quality, standard optical glass lenses difficult to break\nFor novices, such as students and children, suitable magnification, simple functions and easy-to-operate.","domain":"optical_engineering"}
{"url":"http://www.bretagne-hebergement.com/best-binoculars-2018/","date":"2018-12-11T11:57:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823618.14/warc/CC-MAIN-20181211104429-20181211125929-00191.warc.gz","language_score":0.9249526858329773,"token_count":554,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__166067040","lang":"en","text":"Before answering the question “What are the best binoculars ?” You must make it clear that a good binocular is something that can and should be very exciting. The best binoculars make distant images come alive with amazing precision and clarity that make you feel like you are part of a whole new and exciting world. Continue reading this article to know more about the best binoculars for 2018\nImagine being able to see every little detail of what you see through contrast and complete clarity, wherever you are and what you do. If you experience such perfection, you will become emotional and wonder at how you have lived without the best binoculars. The perspectives of the United Kingdom differ from those available in the United States, and the two environments are quite different, so it is possible that the best binoculars in the United States are not available in the United Kingdom or that they are not good under different conditions.\nYou should also keep in mind that people’s opinions are different, and sometimes very dramatically, so what everyone considers the best telescope is probably not the same. In addition, it should be clear what the use of binoculars is. The best binoculars for astronomy will not necessarily be good for bird watching.\nOne thing you should look for in any binocular is the quality of the lenses and the prisms. The best binoculars come with multiple fully coated lenses and high-quality Bak-4 prisms. Due to the humid environment in general, binoculars should be the best for the UK, if you want to use them regularly outdoors, waterproof and fog-free to ensure a perfect visual experience.\nIf you’re looking for the best binoculars in the UK, take a look at the Steiner Commander XP binoculars, surprisingly high specs and water resistance up to 10 meters, sealed with Steiner Nano-Protection, HD XP high performance optics, durable rubber leather and an interchangeable interchangeable system, and truly professional marine endoscopes that offer exceptional performance in low light conditions and come with a 30-year warranty.\nBushnell Make Big Binoculars Even in your search for the best binoculars, take a look at the Bushnell Elite. Prisms coated with a distinctive Bak-4 coating, fully coated lenses, waterproofing, sealed nitrogen, sinuous lens coating and prolonged eye lengthening. The new XTR technology uses at least 60 layers of coatings in each publication to deliver an optical transmission of 90%.\nThere are some small compact binoculars, one of my favorites is the Olympus MC I telescope. Only 195 g in weight, folded credit card size, very elegant, high prism indicator Bak-4 and multiple coated lenses.","domain":"optical_engineering"}
{"url":"http://4unews.com/scienc-e/3mm-chip-restores-sight-in-nine-blind-people/68518/","date":"2014-04-16T21:52:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00618-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9667242169380188,"token_count":111,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__90527131","lang":"en","text":"Nine men blind at birth have gained sight for the first time in their lives thanks to a 3mm chip scientists implanted behind their eyeballs. All nine men were born with the rare hereditary condition retinitis pigmentosa (RP).\nResearchers at Tubingen University placed the chip under the blind retina to stimulate optical nerves. With the stimulus, most blind people gained functional vision and were also able to recognize objects. More than 15 million people suffer from Retinitis Pigmentosa (RP) which degrades people’s sight until they go blind.","domain":"optical_engineering"}
{"url":"https://dailytrade.ua/en/color-display-jusha-c23c/","date":"2024-04-14T15:00:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.72/warc/CC-MAIN-20240414130604-20240414160604-00669.warc.gz","language_score":0.838782012462616,"token_count":1568,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__22622677","lang":"en","text":"JUSHA-C23C Medical Display adopts advanced LED technology, which possesses the advantages of high luminance, multiple colors, uniform luminance, energy conservation, environment protection and long using-life. High resolution, high luminance and 16bit colors (281.47 trillion Colors), built-in LUT based on DICOM standard, which all are designed for high-requirement clinical diagnosis, e.g. PACS, MR, CT and other diagnostic facilities.\nFeatures Color Medical Display JUSHA-C23C\n1. High luminance\nThe luminance of JUSHA-C23C professional medical display can reach up to 900cd/m2. A significant sense of image depth, which is beneficial in locating the nidus, can be formed by the synthetic action of luminance and contrast.\n2. High grayscale\nJUSHA-C23C professional display is equipped with 12BIT (RGB) chip, with which it can present up to 68.7 billion color depth (grayscale), a more exquisite display, a smoother image and guarantee a perfect present of each medical image feature.\n3. Ins-guard real-time DICOM auto-calibration system\nDICOM calibration includes two aspects, one is accuracy calibration before leaving the factory and the other is real-time calibration after leaving the factory. The Ins-guard system, which is particularly developed by Jusha, is DICOM real-time auto-calibration system. The luminance in the central part is monitored by a built-in luminance meter, which also feeds back the control information and auto-calibrates pixel luminance in the LCD panel, ensuring the luminance output comply with DICOM standard. The measurement in central point is more coincidence to the luminance requirement in practical observation area.\n4. Screen luminance equilibrium calibration-SLE\nThe luminance is not equilibrium and difference will be significant among the areas in the LCD monitor without calibration, which will affect the display of medical image GSDF grayscale display function and cause negative effect on the quality of DICOM calibration. The full screen luminance equilibrium calibration (SLE), which is particularly possessed by JUSHA, detects the luminance of each pixel and performs the calibration. In this case, the luminance equilibrium for the medical display requirement is ensured.\n5. Brightness immediately arise technology\nBIA The brightness is expected to arise and maintain stable immediately after the monitor is opened. The stability of the brightness is one of the most important foundations for the nidus observation. Normally, it will take 20 minutes for the traditional monitors reach the stable and required luminance. JUSHA developed BIA (Brightness immediately arise technology), shorted the waiting time for stable status after activation to 30s by the innovation in luminance driver program.\n6. SmarTouch® patent\nChinese diagnosticians review much more images than those abroad. They hope the review is done under low luminance and the observation of features is under high luminance. To reduce the visual fatigue during the review, Jusha developed SmarTouch® patent. The luminance can be changed by tapping the SmarTouch button, and the luminance remains stable immediately based on the BIA technology. It guarantees an accurate diagnosis as well as visual protection to the doctors.\n7. Environmental light detection and calibration\nEnvironmental light is an important factor in affecting viewing result. Under different environmental light, review result of the image of same brightness is different. Jusha environmental light detection and calibration system is able to detect and use the light data, adjust the display effect to make it comply with the human visual ability, present image and is applicable various kinds of brightness environment.\n8. Remote smart energy-saving Eco-guardian\nJusha professional medical display is equipped with Eco-guardian function, which can be used for detection of the existence of users in front of the monitor. The monitor can get into a standby status in a setting time to save energy. Moreover, it can identify the users and other lifeless objects like chairs, making the operation smarter and more convenient.\n9. Remote quality control system\nThe quality control system of Jusha Professional monitor can monitor and control the status of all Jusha monitors through network remotely. The field maintenance of monitors in hospitals will disturb the normal order for treatment. The remote quality control system makes it more convenient. Jusha remote quality control system provides a better experience of remote maintenance and monitoring service.\nSpecifications Medical Display JUSHA-C23C\n(2M LED Color Medical Display)\n|432(H) x 324(V)mm\n|1600×1200 / 1200×1600\n|0.270 x 0.270mm\n|281.47 Trillion Colors (16bit)\n|Backlight / Front / Presence / Ambient Light / Temperature Sensor\n|1 DICOM Presets and 3 GAMMA\n|LUM 200, LUM 300, LUM 400, LUM 500, LUM 600, LUM 650, LUM 700, DICOM, GAMMA 2.2, GAMMA 2.4, GAMMA 2.6, DSA, DSI ,CT/MRI\n|Built_in / MDS-100 APS12B / Delta\n|Max Power Consumption\n|Typical Power Consumption\n|382mm * 238mm * 533mm\n|Dimensions (Without Stand)\n|382mm * 75mm * 490mm\n|Net Weight (Without Stand)\n|VESA Standard: 100*100mm\n|MDD 93/42/EEC; A1:2007/47/EC class IIb product\nIEC 60601-1:2005 + CORR.1(2006) + CORR.2(2007), EN60601-1:2006 + AC(2010),\nCFR 47 FCC PART15 subpart B, 2013,\nEN 60601-1-2:2007 + AC:2010\nANSI/AAMI ES 60601-1:2005 + C1:2009 + A2:2010, CAN/CSA C22.2 No. 60601-1-08\nFDA 510k, ROHS, INMETRO","domain":"optical_engineering"}
{"url":"https://www.qualityautotint.com/camera-calibration","date":"2023-09-27T04:36:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510259.52/warc/CC-MAIN-20230927035329-20230927065329-00780.warc.gz","language_score":0.9353363513946533,"token_count":416,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__260791268","lang":"en","text":"Automotive Camera Calibration\nAutomotive camera calibration is a crucial process that ensures the accuracy and reliability of cameras used in modern vehicles. It involves adjusting the parameters of a camera system to ensure that it captures and processes images correctly. If your vehicle needs a windshield replacement or has recently had a windshield replacement, it will also need a camera calibration. For windshield replacements and camera calibration service, contact the experts here at Quality Auto Glass & Tint.\nWhy should I get my vehicle's camera calibrated?\nImproved Safety: One of the most significant benefits of automotive camera calibration is improved safety. Cameras are essential in modern vehicles, as they provide drivers with crucial information about their surroundings. Calibrated cameras ensure that this information is accurate and reliable, which helps drivers make better decisions and avoid accidents.\nBetter Performance: Calibrated cameras also improve the performance of driver assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking. These systems rely on accurate camera data to function correctly, and calibration ensures that the data is correct.\nCost Savings: Camera calibration can help prevent unnecessary repairs and replacements, which can be costly. If a camera is not calibrated correctly, it may not provide accurate information, which can lead to unnecessary repairs or replacements of other vehicle components.\nIncreased Resale Value: Calibrated cameras can increase the resale value of a vehicle. Potential buyers are willing to pay more for a vehicle with properly functioning cameras, as they provide peace of mind and improved safety.\nCompliance with Regulations: In some jurisdictions, camera calibration is required by law. Compliance with these regulations is essential, as non-compliance can result in fines or even the impounding of the vehicle.\nIn conclusion, automotive camera calibration is a vital process that improves the safety, performance, and overall value of a vehicle. It is a cost-effective way to ensure that cameras function correctly and comply with regulations. With the benefits of camera calibration in mind, it is essential to have it done regularly.","domain":"optical_engineering"}
{"url":"http://romanianoastra.info/lessons-learned-from-years-with/","date":"2021-01-27T03:37:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704820894.84/warc/CC-MAIN-20210127024104-20210127054104-00746.warc.gz","language_score":0.9776402711868286,"token_count":562,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__228038031","lang":"en","text":"If you need the laser light manufacturing services, you have to go back and get to know who will serve you since you cannot do this on your own. You will find that the only solution will be for you to choose the best laser light manufacturers since they are the ones who are trained and have specialized in delivering laser light manufacturing services. With the name laser light manufacturers, it will be wrong for you to generalize and imagine that all of them have the capability of delivering excellent laser light manufacturing services. There are so many things that can make the laser light manufacturers differ in their performance. You, therefore, have to take up the task of comparing the laser light manufacturers and also checking out for all the other possibilities that could cause a difference in the laser light manufacturing services that they deliver. Learn more now from this homepage on the clues for picking the most exceptional laser light manufacturers as they have been listed for you here.\nFirst, you have to pick the laser light manufacturers after you have done all the research that you want and you have investigated every aspect that you feel is worth investigation. Since there are numerous laser light manufacturers, you may not have a chance or the power to know all of them at ones. It is therefore proper that you select a few that you wish to hire then research about them well. This can be a tiring task but for your good, you have to do it. Never hire the laser light manufacturers blindly without doing this kind of investigation since it will reveal to you much that you did not know about the laser light manufacturing services as well as the providers.\nSecond, seeking help from others in the form of recommendations or advice on how to choose laser light manufacturers is yet another thing that can help you much. If you have people that you can inquire from, kindly do so as this is what will offer you the best choices for the laser light manufacturers. You can consider asking the people who have been served by the laser light manufacturers before or the ones who have been close to them for quite some time. They will tell you what they know then you can go ahead and research more about those few that you have been told about. It is never wise for you to make your final selections of the laser light manufacturers from what you have just been told and not doing any kind of clarifications over the same.\nLast, the skills or qualifications which the laser light manufacturers have acquired or they can say they have is yet another thing that you have to focus on. Never choose the laser light manufacturers who do not have the required skills since they will not be able to deliver the laser light manufacturing services. If they do, then it goes without saying that the laser light manufacturing services will be very substandard and you will not be happy at all now that you will have paid for this.","domain":"optical_engineering"}
{"url":"http://reciclabr.com/epub/biomedical-optical-imaging","date":"2018-03-17T14:11:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257645177.12/warc/CC-MAIN-20180317135816-20180317155816-00184.warc.gz","language_score":0.8410491943359375,"token_count":1015,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__135397769","lang":"en","text":"By James G. Fujimoto, Daniel Farkas\nBiomedical optical imaging is a swiftly rising learn sector with common primary learn and medical purposes. This booklet provides an outline of biomedical optical imaging with contributions from best foreign study teams who've pioneered lots of those options and purposes. a special study box spanning the microscopic to the macroscopic, biomedical optical imaging permits either structural and useful imaging. suggestions comparable to confocal and multiphoton microscopy offer mobile point solution imaging in organic platforms. the mixing of this expertise with exogenous chromophores can selectively improve distinction for molecular objectives in addition to provide useful info on strategies similar to nerve transduction. Novel ideas combine microscopy with state of the art optics know-how, and those comprise spectral imaging, photon fluorescence correlation, nonlinear nanoscopy; optical coherence tomography recommendations enable sensible, dynamic, nanoscale, and cross-sectional visualization. relocating to the macroscopic scale, spectroscopic review and imaging equipment reminiscent of fluorescence and lightweight scattering gives you diagnostics of tissue pathology together with neoplastic alterations. suggestions utilizing gentle diffusion and photon migration are a method to discover approaches which happen deep inside of organic tissues and organs. the mixing of those innovations with exogenous probes allows molecular particular sensitivity.\nRead Online or Download Biomedical optical imaging PDF\nBest biomedical engineering books\nQuantity four of the multi-volume reference, BioMEMS and Biomedical Nanotechnology В is a balanced evaluate of key features of BioMEMS sensors, together with (i) BioMEMS sensors and fabrics, (ii) technique of manipulating organic entities on the microscale, and (iii) micro-fluidics and characterization. those 3 sections supply a succinct evaluate of vital themes inside a unmarried quantity.\nThis can be the 3rd in a chain of brief books on likelihood idea and random strategies for biomedical engineers. This booklet specializes in common chance distributions in general encountered in biomedical engineering. The exponential, Poisson and Gaussian distributions are brought, in addition to vital approximations to the Bernoulli PMF and Gaussian CDF.\n- Autonomic Nervous System Dynamics for Mood and Emotional-State Recognition: Significant Advances in Data Acquisition, Signal Processing and Classification (Series in BioEngineering)\n- Computational Intelligence in Healthcare 4: Advanced Methodologies (Studies in Computational Intelligence)\n- Imaging for Plastic Surgery\n- Physics for Diagnostic Radiology, 3rd Edition\n- Macroporous Polymers: Production Properties and Biotechnological/Biomedical Applications\nExtra info for Biomedical optical imaging\nCONCLUSION We have examined the origin of the optical sectioning property in the confocal microscope to introduce the range of imaging modes to which this unique form of microscope leads. A range of optical architectures has also been described. 1, where a confocal module is integrated around a conventional optical microscope. Other, more recent, real-time implementations were also described. A number of practical aspects of confocal microscopy were not discussed because they are readily available elsewhere, such as advice on the correct choice of detector pinhole size, or because they are still the focus of active research, such as the development of new contrast mechanisms for achieving enhanced three-dimensional resolution including Confocal Microscopy stimulated emission depletion methods known as STED (Hell and Wichman, 1994) or 4-Pi (Hell and Stelzer, 1992), which are still under development but offer great promise.\n26, 497. Tidwell SC, Ford DH, and Kimura WD. (1990). Generating radially polarized beams interferometrically. Appl. , 29, 2234. Tidwell SC, Kim GH, and Kimura WD. (1993). Efficient radially polarized laser-beam generation with a double interferometer. Appl. , 32, 5222. Tyson RK. (1991). Principles of Adaptive Optics. Academic Press, London, UK. ). (1990). Confocal Microscopy. Academic Press, London, UK. Wilson T, Juškaitis R, and Higdon PD. (1997). The imaging of dielectric point scatterers in conventional and confocal polarisation microscopes.\nBooth MJ, Neil MAA, and Wilson T. (2002b). New modal wave-front sensor: Application to adaptive confocal fluorescence microscopy and two-photon excitation fluorescence microscopy. J. Opt. Soc. , 19, 2112. Bomzon Z, Biener G, Kleiner V, and Hasman E. (2002). Opt. , 27, 285. Born M and Wolf E. (1975). Principles of Optics. Pergamon, Oxford. Corle TR and Kino GK. (1996). Confocal Scanning Optical Microscopy and Related Imaging Systems. Academic Press, New York. Denk W, Strikler JH, and Webb WW. (1990).","domain":"optical_engineering"}
{"url":"http://www.opticnetcn.net/products/24-fibers-Wall-Mounting-Termination-Box-293761.html","date":"2023-06-04T09:55:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649741.26/warc/CC-MAIN-20230604093242-20230604123242-00702.warc.gz","language_score":0.7690919041633606,"token_count":508,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__68892840","lang":"en","text":"|Min. Order:||10 Piece/Pieces|\n|Place of Origin:||Zhejiang, China (Mainland)|\n|Means of Transport:||Ocean, Air, Land|\n|Delivery Date:||in a week|\n|Dimension:||264x154x56(mm)||Max. No. of Pigtail:||24|\n|Max Fiber Counter:||24||Max. No. of Splice Tray:||4|\n|No. of Entry / Exit Ports:||2|\nGP-ZD Fiber Optic Termination Box is suitable for jointing fiber cable and pigtail, and it protects fiber optic splices and helps to distribute. The termination box is either a wall-Mounting type or a desktop type, which is mainly used in telecommunication equipment room and network equipment room.\nProduct Name: Fiber Optic Termination Box\n> Light weight, small size, easy installation.\n> Provide splice connection protection of fiber cable and pigtail.\n> Made of engineering plastic material, which has mechanical strength, therefore it is reliable and long lasting.\n> Slide-N-Lock fiber optic splice tray with its opening angle above 90. Therefore it is easy for installation and maintenance.\n> Max. Capacity: 24 fibers\n> Dimension: LxWxH: 264x154x56(mm)\n> Suitable for SC, duplex LC adapters\nNo of Entry\n/ Exit Ports\nMax. No of\nMax. No of\n(Lx W x H) mm\nAccessories provided with termination box: insulation tape .nylon tie .numbering paper. fixer.\nAccessories to be ordered in addition : adapter, pigtail , patch cord.\nCategory: Indoor Fiber Optical Termination Box\nRelated Category: Outdoor Fiber Optical Termination Box","domain":"optical_engineering"}
{"url":"http://lavisionbiotec-asiapacific.com/index.php","date":"2017-04-28T21:49:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123097.48/warc/CC-MAIN-20170423031203-00087-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8660265803337097,"token_count":381,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__261729856","lang":"en","text":"to the new home of LaVision Biotec Asia-Pacific, the exclusive regional distributor for LaVision Biotec GmbH, offering full technical sales and service support for customers throughout the Asia Pacific region.\nLaVision Biotec Asia-Pacific is a division of Lastek Pty Ltd. Based in Adelaide, Australia, and established in 1988, Lastek is the most experienced distributor of lasers, spectroscopic systems and imaging technologies in Australasia.\nLaVision BioTec GmbH offers unique imaging products connecting biology and optics. Specializing in the development of innovative optical equipment for life science applications, the span of technologies reaches from intravital microscopy to fluorescent imagers for microarrays.\nMouse Hippocampus, Thy-1 GFP\n(Courtesy Bianca Schmidt, Max Planck Institute for Psychiatry, Munich)\nIn 2009 the first commercial light sheet microscope was launched by LaVision BioTec. Today we present the second generation of our light sheet microscope which has been inspired by our user’s feedback.\nThe new UltraMicroscope II utilizes six thin light sheets to excite samples while the fluorescence light is detected with a sCMOS equipped microscope that is mounted perpendicular to the plane illumination. By moving the sample through the light sheets one generates a 3D image stack at cellular resolution.\nThe LaVision Biotec TriM Scope II multi photon-box represents the second generation of two photon microscopes and is designed for fast and deep imaging in a multi-user environment.\nFluorescence, second and third harmonic imaging\n(courtesy Peter Friedl)\nThe revolutionary Cloud Scanner: Brighter images and less bleaching\nLaVision BioTec has developed a new flexible multi point scanning for brighter images and selective excitation below single cell size. Read more...\n(61) 8 8443 8668","domain":"optical_engineering"}
{"url":"https://blog.willneedham.com/tag/portrait/","date":"2020-08-06T13:43:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439736962.52/warc/CC-MAIN-20200806121241-20200806151241-00259.warc.gz","language_score":0.9712518453598022,"token_count":196,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__65871127","lang":"en","text":"I’m not normally a fan of the really high contrast, excessive grain look but for this one I took at a friends Halloween party it just works perfectly. The lighting and impressive face-paint helps too!\nWhat I think make this image work is the contrast between light and dark. The dark background combined with the direct light on the subject makes him stand out, which coupled with his light shirt makes him draw your eye (rather than it being distracted by the somewhat busy background)\nEver heard of swirly bokeh? It’s a property of certain lenses where the out of focus areas are distorted in a circular pattern. It’s caused by a poor correction in the lens known as spherical aberration, but I’ll leave that for the optics geeks. Suffice to say that this lens does it and while sometimes it can be distracting, sometimes it all falls in to place and throws a lovely emphasis on the subject.","domain":"optical_engineering"}
{"url":"https://www.kbbonline.com/products/outdoor-living/nora-lighting-11/","date":"2018-08-19T05:55:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221214702.96/warc/CC-MAIN-20180819051423-20180819071423-00652.warc.gz","language_score":0.8743618130683899,"token_count":265,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__97339896","lang":"en","text":"December 14, 2017\nNora Lighting introduces PRISM, a smart LED RGBW retrofit downlight that creates interesting visual environments by changing the color of the light, the Kelvin temperature or light intensity. PRISM is the latest advance in sophisticated lighting controls for hospitality venues or residences. Using Bluetooth technology, PRISM’s lighting effects can be directed by the designer or end user with the Prism handheld remote or with an iOs or Android smartphone using Nora‘s ControLIT App.\nThe PRISM remote control and Nora’s ControLIT App work in tandem to: select CCT or RGB; adjust dimming; set up zoning; and on/off pre-set times – even synching lights to the beat of music in a smart phone. PRISM is offered in a 4-in. aperture with 710 lumens and 5/6-in. aperture with 825 lumens. It has 90+ CRI and is programmable from 2700K to 4000K on the white color setting with thousands of RGBW color options. PRISM can be retrofitted into existing housings or installed in new construction or remodel applications. PRISM is available in baffle or reflector styles with bronze or white finishes and a deep cut-off for visual comfort.","domain":"optical_engineering"}
{"url":"http://www.voe-reb.org/best-laser-level-various-uses","date":"2019-11-19T01:24:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496669868.3/warc/CC-MAIN-20191118232526-20191119020526-00431.warc.gz","language_score":0.9350489377975464,"token_count":348,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__61644137","lang":"en","text":"The Best Laser Level is an excellent tool which assists in specifying the level surface of a building site. The Best Laser Level finds application in surveying and construction works by acting as a controlling tool. Though there are various types of the Best Laser Level, the most common include three models. The three common types of this Best Laser Level are the dot laser degrees, line laser levels and the rotary laser levels. The different laser degrees perform a specific function depending on their exclusive designs.\nThe use of Best Laser Level is evident while laying out the brand new building site. It is only after working the layout of a particular construction site aid in estimating the productivity of their building work. There isn’t any alternative when it comes to knowing the water level of the region, and also the usage of the Best Laser Level becomes pertinent. Another essential area in which the Best Laser Level gets used is to get grading. Without an improper grading, the building process becomes hampered.\nThe usage of this leveler with laser with additional gear like grading rod, tripod and a laser sensor assist in making excellent gradation. The making of a proper drainage system also requires the usage of this Best Laser Level, especially the rotary laser level. The use of this Best Laser Level helps in minimizing the manual workload considerably. Another crucial use of the Best Laser Level is for aligning fence posts, which is challenging work.\nThe previous type of category that you are able to see in the Best Laser Level is your scatter lasers. The Dot lasers work similarly with the line laser with the gap being at the line projection. Dot laser offers line precisely at the right angle to another. Therefore, from the above mentioned the different types of this Best Laser Level.","domain":"optical_engineering"}
{"url":"https://www.newscafe247.com/oppos-new-hybrid-optical-zoom-technology-reveals-new-periscope-camera-design/","date":"2021-01-20T03:15:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703519883.54/warc/CC-MAIN-20210120023125-20210120053125-00010.warc.gz","language_score":0.9130563735961914,"token_count":462,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__133833608","lang":"en","text":"Oppo is a brand that is popularized for its selfie camera technology. The company is further improving its camera highlights with another hybrid optical zoom technology. The new camera depends on a periscope camera design that utilizes a seven-piece focal point for better image results. Oppo’s new hybrid optical zoom technology will be normal on future smartphones.\nGoing into the subtleties, the new Oppo camera technology comes with autofocus and optical stabilization modules. It utilizes a high-precision driver motor coordinated circuit (IC) to provide a flexible medium-length focus imaging. For all we know, we can hope to see the new camera technology in the innovative leader successor of the Reno 10x Zoom. Oppo Hybrid Optical Zoom Features the Oppo hybrid optical zoom includes a periscope-style camera module that allows focal length adjustment from 85mm to 135mm, along with f/3.3 and f/4.4 opening.\nThe optical zoom camera technology is additionally upgraded by a combination of multi-focus image fusion, multi-camera field-of-see edge arrangement, and a super-scoring algorithm. Further, there is a huge size image sensor with up to 32MP and a four-in-one pixel binning technology. The impact is a full HD experience for catching both close and far separation images.\nThe improved camera further produces sharp and clear images in dull lighting conditions, which also holds all the minute subtleties and draws out the characteristic colors. Improved Smartphone Cameras Smartphone cameras have come a long way. We as of late observed the Samsung Galaxy S20 Ultra’s improved zooming abilities with 100x zoom.\nThe new Oppo hybrid optical zoom technology is another progression towards improving smartphone camera functionality. For now, there’s no word or a timetable on when we can see the new camera technology. Yet, reports propose we can see the new Oppo hybrid optical zoom technology is the Oppo Reno 10x Zoom successor.\nTo note, the Oppo Reno 10X Zoom was propelled in February 2019. The successor to the smartphone was as of late spotted on China’s TEENA posting. Nevertheless, it’s dubious if this leader will really incorporate the Oppo hybrid optical zoom technology.","domain":"optical_engineering"}
{"url":"http://www.florhamvillagecamera.com/products-services/digital-and-35mm-cameras/","date":"2018-02-17T22:57:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891808539.63/warc/CC-MAIN-20180217224905-20180218004905-00203.warc.gz","language_score":0.9586470127105713,"token_count":243,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__216746111","lang":"en","text":"SLR(single lens reflex cameras)\n- SLR cameras are when you look through the viewfinder of the camera you are looking through the lens of the camera\n- These cameras also give you the flexibility to change lenses to get a variety of different focal lengths\n- We sell a variety of different manufacturers\n- cameras of this type that include Leica, Nikon, Canon, Olympus and many more.\n- We carry both Digital and Film SLRs to find the camera that fits your needs.\nPoint and Shoot Digital Cameras:\n- Point and shoot cameras are your everyday camera that most people have. They can have a zoom lens or a single focal length lens and are auto-focus.\n- These cameras come in a variety of shapes and sizes and can usually fit in a pocket or purse to bring with you.\n- We sell point and shoot cameras from all of the companies mentioned above.\n- We also are still experts with film cameras and can still help you with any of your film needs.\n- We also have a full line of lenses for you film cameras as well as some used film bodies for those who film enthusiasts.\nFor more information or to order your camera contact us","domain":"optical_engineering"}
{"url":"http://www.yesdelta.com/office-products/product-library/?feed_id=928","date":"2019-07-15T23:59:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195524290.60/warc/CC-MAIN-20190715235156-20190716021156-00366.warc.gz","language_score":0.8213829398155212,"token_count":266,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__127744081","lang":"en","text":"REALiS WUX500 D Pro AV\nThe REALiS WUX500 D Pro AV Compact Installation LCOS Projector delivers high performance WUXGA (1920 x 1200) resolution with 5000 lumens of brightness and up to a 2000:1 contrast ratio. These features combined with an advanced Genuine Canon projection lens and Canon's proprietary LCOS technology with AISYS-enhancement helps to produce crisp, bright images with exceptional color reproduction.\nAlong with this high brightness and high resolution, this model Includes a DICOM Simulation Mode for the display of monochrome digital X-rays, CAT scans, and MRI's with accurate color and precise detail. This special mode simulates the results of devices compliant with the Digital Imaging and Communications in Medicine (DICOM) Part 14 standard. For added flexibility, within this mode users can select from either blue or clear base and can further adjust the color temperature according to their individual preferences.\n- Imaging Device: 0.71\" LCOS Reflective LCD panel x3\n- Aspect Ratio: 16:10\n- Native Resolution: 1920 x 1200 (WUXGA)\n- Brightness: 5000 Lumens (Normal)\n- Remotes: Wireless Infrared (supplied) or Wired (optional)\nCategory :Digital Projectors","domain":"optical_engineering"}
{"url":"https://www.key4biz.it/Players-Who-is-who-G-Greco-Frank-179693/53294/","date":"2021-06-15T13:04:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487621273.31/warc/CC-MAIN-20210615114909-20210615144909-00079.warc.gz","language_score":0.9305925965309143,"token_count":121,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__152814035","lang":"en","text":"WHO IS WHO\nDeputy Head “Radio Spectrum Policy”\nEuropean Commission – Information Society and Media\nFrank Greco has worked in the European Commission since 1994. He joined the Radio Spectrum Policy unit in DG Information Society and Media in 1999, where he is deputy Head of Unit, coordinating the Commission’s spectrum harmonisation activities.\nIn his earlier work in the Commission, he managed EU RTD projects in ICT areas.\nBefore joining the Commission, he worked in the optical communications and electricity distribution commercial sectors.\nHis academic background is in astrophysics, telecommunications and business.","domain":"optical_engineering"}
{"url":"https://accpeo.com/sl-3500760/unlocking-power-laser-welding-equipment-sale-dp-laser","date":"2024-04-22T00:19:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818067.32/warc/CC-MAIN-20240421225303-20240422015303-00690.warc.gz","language_score":0.8612463474273682,"token_count":363,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__178456593","lang":"en","text":"DP Laser, a reputable name in the world of metal fabrication, presents its exclusive range of cutting-edge laser welding equipment for sale. Dive into a world of precision and efficiency with our state-of-the-art welding solutions designed to elevate your business to new heights.\nRevolutionizing Metal Fabrication\nAs pioneers in the industry, DP Laser combines innovation with expertise to deliver unparalleled results in metal fabrication. Our laser welding equipment sets the gold standard, providing a level of accuracy and consistency that traditional welding methods simply cannot match.\nWhy Choose DP Laser for Laser Welding Equipment?\n- Unmatched Precision: Our laser welding equipment offers pinpoint accuracy, ensuring seamless welds every time.\n- Efficiency Redefined: Say goodbye to time-consuming processes – with DP Laser, productivity reaches new heights.\n- Quality Assurance: Each piece of equipment undergoes rigorous testing to guarantee exceptional performance and durability.\nThe DP Laser Advantage\nAt DP Laser, we understand the diverse needs of modern businesses in the metal fabrication industry. Whether you are a small-scale workshop or a large manufacturing facility, our laser welding solutions cater to your requirements with precision and finesse.\nExploring Our Product Range\nDiscover a wide array of laser welding equipment options at DP Laser:\n- Laser Welding Machines: Our cutting-edge machines offer seamless integration and intuitive operation.\n- Laser Welding Tools: Precision tools that enhance your welding capabilities and efficiency.\n- Laser Welding Accessories: Explore a range of accessories to complement your welding setup.\nExperience the Future of Welding\nInvest in DP Laser's laser welding equipment for sale and unlock a world of possibilities. Say goodbye to traditional welding challenges and embrace a future where precision and efficiency reign supreme. Elevate your business with DP Laser – where innovation meets excellence.","domain":"optical_engineering"}
{"url":"https://relaxuswholesale.com/products/wholesale-fibre-optic-sensory-lamp","date":"2022-05-18T13:02:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662522270.37/warc/CC-MAIN-20220518115411-20220518145411-00063.warc.gz","language_score":0.8443382382392883,"token_count":115,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__49208096","lang":"en","text":"Wholesale Fibre Optic Sensory Lamp\nThe Fibre Optic Sensory Lamp is the perfect LED Mood Lamp. It can electrify any space in an array of sparkling and colour-changing optical fibres and with a crystal-filled base. Choose from 16 distinct colours and 4 lighting modes, with remote control included for convenient operation.\n- Fibre optic light\n- 16 distinct colours\n- 4 lighting modes\n- Crystal-filled base\n- Battery-operated (uses 3 x AAA batteries, not included)\n- Remote control included","domain":"optical_engineering"}
{"url":"http://kawelldeal.com/goods.php?id=167","date":"2019-03-20T13:23:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202347.13/warc/CC-MAIN-20190320125919-20190320151919-00330.warc.gz","language_score":0.8158419728279114,"token_count":398,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__73833040","lang":"en","text":"<b>Description</b><br> <b>FITMENT: Snaps on the KAWELL? K7-73 Series(K7-7318,K7-7336,K7-7354,K7-7372,K7-7354,K7-7390,K7-73180<br> <b>K7-73234,K7-73288) Led Light Bars with Ease.<br> <b>MULTI-USE: Changing colors: the light can be used as a fog light with the amber color light cover & product the lights.<br> <b>DURABLE: Made of Durable Polycarbonate Plastic.<br> <b>COLOR: amber color<br> <b>QTY: pack of 2 (can be snaped on a 36w Led light bar)<br>\nKAWELL® - Let Hi-tech Light up Your Way.\nThe KAWELL® led light bar lens cover is to add style and protect to your lighting setup. These lens cover are made of durable polycarbonate plastic, snaps on and off the KAWELL? K7-73 Series light bars with ease, and amber and clear black color are available. Amber lens cover can improve the visibility during snowy or foggy weather. Each lens cover is used to cover six LED’s, so be sure to purchase the correct number of lens cover for your light bar.\nSnaps on the KAWELL? K7-73 Series light bars with ease.\nAdd Style & Protection.\nMade of Durable Polycarbonate Plastic.\n2 x Covers\n1 Year Warranty\nFriendly reminder: these lens cover are just fit KAWELL? K7-73 Series light bars with ease, maybe not fit other seller's lights because the model of the light case maybe a little different.","domain":"optical_engineering"}
{"url":"https://www.sightnsoundht.com/products/mitsubishi-hc9000d-3d-projector","date":"2017-08-22T05:22:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886110471.85/warc/CC-MAIN-20170822050407-20170822070407-00691.warc.gz","language_score":0.8353744149208069,"token_count":385,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__130624432","lang":"en","text":"Mitsubishi HC9000D 3D Projector\nNew Era Advanced Technology & Features\n- SXRD technology for high 150,000 contrast ratio and expansive color pallet\n- Quick 2ms response speed keeps fast-moving images sharp\n- Reon VX HQV video processor delivers high definition resolution for all formats\n- 1.8x power zoom lens enables projection to a 100″ screen from 3.4m to 6.3m\n3D Projector Projects Crisp Cinema Quality Images\nThe new HC9000D home theater projector delivers beautifully natural and textured projections using SXRD technology. Response time is a quick 2 cms, rendering even fast-moving images smooth and sharp. Separate reflective liquid-crystal panels reproduce truly natural color, while a newly developed optical compensator reduces light loss significantly and allows an incredibly high contrast ratio of up to 150,000:1.\nBuilt-In High Performance\nThe HC9000D high definition projector features a Reon VX HQV video processor, producing high quality images whether you’re watching Blu-ray, DVD or other formats. The new built-in 1.8x power zoom lens delivers advanced functionality, so peripheral focusing is improved while chromatic aberration and color mixing are reduced to a minimum.\nVersatile Set-up & Operation\nOur new 3D projector lets you configure your home theater the way you want. Project onto a large 100″ screen from as far away as 6.4m and as close as 3.4m. Mount the home theater projector on the ceiling, place it high on a shelf or bookcase, or put it on a desk or table. An illuminated remote controller lets you operate the HC9000D easily with the lights turned off. Get into the action and experience a new dimension in entertainment with the new HC9000D 3D high definition projector.","domain":"optical_engineering"}
{"url":"https://srkcreative.com/blog/choose-camera-lenses-to-capture-an-expressive-qualities-of-the-world-around-us/","date":"2023-04-02T12:25:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950528.96/warc/CC-MAIN-20230402105054-20230402135054-00131.warc.gz","language_score":0.9505759477615356,"token_count":1113,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__211062208","lang":"en","text":"Choose Camera Lenses to Capture an Expressive Qualities of the World Around Us\nA lens is what your camera used to focus on a subject or scene. The camera lens captures the light from the subject and brings it to focus on the sensor of a digital camera. Camera lenses come in focal lengths or zooms, which covers a range of focal lengths.\nA camera lens also known as photographic lens or photographic objective, is an optical lens or assembly of lenses used in conjunction with a camera body & mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electrically.\nLenses are available in large as well as small sizes, costing cheap or expensive and also may be permanently fixed to a camera or it may be exchangeable with lenses of different focal lengths, apertures and other properties. It is basically depend on what is the purpose of your photography or the subject you want to discover. Utilizing lens in creative way delivers photography its expressive qualities that shapes the way you “see” the world through the viewfinder.\nThere is no considerable discrepancy in principle between a lens used for a telescope, a still camera, a video camera, a microscope or other appliance, but the detailed design & construction are different.\nThe lenses are grouped into various categories. Some of the lenses are described below\nIt is also known as a “normal” lens, is one that creates similar image as the human eye would see without magnification and which looks natural to the viewer. These are generally between 35 and 50mm and are among most common ultimate lenses in the market. Standard lens sits between the telephoto lens & the wide angle lens, which creates artificially zoom-in & zoom-out images respectively. Normal lenses are wonderful to photograph travel and street photography, close-up portraits to landscapes photography.\nA prime lens is a lens which has single focal length with fixed zoom only. Prime lens provides one length and doesn’t have the moving pieces & mechanisms required to zoom, they can be tack sharp. Prime lens is the opposite of zoom lens. Prime lenses are lacking in zooming but produce better quality images than zoom lenses. This means they can capture stunning images in a wide range of situation and lighting conditions. Night photos, portraits and action shots are some traditional uses for prime, but the dimensions of focal lengths from 10mm up to 300mm and beyond can find a prime lens for any kind of photography.\nWide Angle lenses\nIt is fundamentally a “far zoomed out” lens. Wide-angle lenses have three classes: Wide, Ultra-wide & Fish-eye.\nThis lens is defined as anything shorter than 35mm. Wide-angle lens capture wide view and have a much larger depth of field, which means it will be more in focus, from the foreground to the background.\nIt is a lens which has a focal length shorter than 20mm, but is built with internal lenses which are meant to correct the fish-eye distortion, these are some like “aspherical”.\nIt can be easily recognize a fish-eye lens by looking at the image because curved and distorted at the outside edges of the frame, allowing it to see as wide as 180 degrees.This gives the signature fish-eye effect which bends all straight lines around the center & creates a spheroid effect in the image. Fish-eye lens is fantastic for certain purposes, specially for scientific purpose.\nTelephoto lens is a specific form of a long-focus lens in which the physical length of the lens is shorter than the focal length. Technically can be explained as anything exceeding 50mm. In other words lenses which are used should be beyond 100mm. It is just the opposite of wide-angle lens.\nTelephotos shorten the depth of field, allow you to detach your subjects from the background with shallow focus; this is when only a short plane is sharp & everything in front of and behind that plane falls immediately into blur.\nZoom lenses have variable focal lengths. Advantage of the zoom lens is its flexibility. These lenses are extremely convenient but they have to make some compromises in order to enable the focal length shift. They are ideal for photographing a variety of subjects such as landscapes & portraits, where you just need single lens for both situations. You can also find “superzooms” such as an 18-200mm, covers the complete range that most people will ever need.\nMacro lens photography can be technically define as an art of making very large photographs. It is extreme close-up photography, normally of very small subjects, in which the size of the subject in the photograph is greater than real size. Macro lens has an acute level of magnification, classically capable of picking out the microscopic details and enhancing them larger than we can easily see with our own eyes. These lenses are identically useful for capturing the textures of fly’s face, or flower’s pollen spores, etc.\nGoing through all such studies of lenses we can comprehend their uses, differences in capturing the pictures and detailing, variations in size, depth, focus, etc., which is helpful for understand your camera thoroughly. Such developments have appreciated the human understanding of the world around us in immeasurable ways.","domain":"optical_engineering"}
{"url":"http://uemfpu.us/canon-100mm-1-8","date":"2020-10-19T21:18:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107866404.1/warc/CC-MAIN-20201019203523-20201019233523-00048.warc.gz","language_score":0.6625168323516846,"token_count":2124,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__176392488","lang":"en","text":"Se beste pris på Canon EF 100mm f/2.8 Macro USM. Sammenlign priser. Les tester og omtaler før du kjøper. Lansert 28. mars 2003. Specs: Tele, Canon. Se beste pris på Sigma 50-100mm f/1.8 DC HSM Art for Nikon. Sammenlign priser. Les tester og omtaler før du kjøper. Lansert 22. februar 2016. Specs.\nCompared to the Canon 85mm f/1.8 USM. Canon 85mm f/1.8 USM and 100mm f/2 USM. enlarge. The Canon 85mm f/1.8 USM is almost same as this 100mm f/2 lens. The 85mm is only a tiny bit shorter and weighs just 17g 0.6 ounces less than the 100mm. Shots with the Canon EF 100mm f/2 lens. This seemed like a serious omission because every other lens seems to have it's own group. Keep it safe for work for now, so nothing that's NSFW. 15.11.2019 · My thoughts on Canon 85mm 1.8 vs 100mm f2 Jan 20, 2013 4 The 100mm f2 is not as often as reviewed or sold as much as the 85mm. I gave it a try because I love the 85mm 1.8. However to me I ended up selling the 100mm f2. IMO their optical characteristics are quite similar, it is as if the 100mm.\nCanon EOS-1D X @ 100mm, ISO 4000, 1/125, f/7.1. Probably the greatest asset of the Canon lens is the Hybrid Image Stabilization System which works incredibly well and makes handheld macro photography a possibility under dim lighting conditions. Overall, the Canon EF 100mm f/2.8L Macro IS USM is a fantastic lens that is well priced. The Sigma 50-100mm f/1.8 DC HSM Art Lens is available in Canon reviewed, Nikon, Sony/Minolta and Sigma mounts and qualifies for Sigma's Mount Conversion Service in case you change your mind. My standard disclaimer: There are potential issues with third party lenses. The EF 100mm f/2.8L Macro IS USM lens boasts a ring USM driving rapid auto focus with near-silent operation. Kyoyu is an Australian camera sharing community brought together by Canon. It lets you rent out your Canon camera gear or hire the gear you need, quickly and easily.\nThe EF 100 mm f /2.0 USM lens is a compact medium telephoto lens with a large aperture. Its physical and optical characteristics are similar to the Canon EF 85 mm f /1.8 lens. Since this lens is not a macro lens, it is lighter and smaller than the macro lenses. Announced in February 2016, the $1099 Sigma 50-100mm f/1.8 DC HSM A Sigma 50-100mm f/1.8 A is a fast-aperture telephoto zoom lens for Canon, Nikon, and Sigma APS-C lens mounts. Part of the Sigma Art series of high-end optics, the Sigma 50-100mm f/1.8 A is a rare beast for APS-C shooters, featuring a bright, constant f/1.8 maximum aperture throughout the zoom range. Offering an equivalent 80. APS-C/DX tends to get the development leftovers from the first parties like Canon, Nikon, and Sony. Lenses tend to be variable aperture, consumer grade zooms. Sigma did something very rare when they developed a truly premium zoom lens for APS-C with the 18-35mm, and they have done it again now with this even more impressive 50-100mm f/1.8 ART lens.\nBoth Center Sharpness and Corner Sharpness for the Canon 85mm f/1.8 and the Canon 100mm f/2.8 are essentially identical over the f/2.8-f/22 aperture range the two share. Figure 12. Den billigste prisen for Canon EF 100/2.8 L IS USM Macro 1:1 akkurat nå er 10 336,-ny eller 6 500,-brukt. Det er et av de 100 mest populære produktene i kategorien Objektiver med en gjennomsnittlig vurdering på 4.6 av 5. Prisjakt sammenligner priser og tilbud fra 25 butikker. The Sigma 50-100mm 1.8 DC HSM Art is a premium mid telephoto zoom lens designed for APS-C sized sensors. Part of the Sigma Global Vision Art Line, the 50-100mm 1.8 is the second lens to feature a 1.8 aperture all the way through it focal length and factoring in the APS-C increase, the lens covers a highly useful range of 75-150mm.\nThe Canon 85mm f/1.8 is a great lens. It's inexpensive and works extremely well. In many aspects the 85mm f/1.8 outperforms the exotic special-purpose Canon 85mm f/1.2L II that costs five times as much!. The Canon 85mm f/1.8 is much easier to use than either of the Nikon 85mm f/1.8 AF-D or Nikon 85mm f/1.4 AF-D lenses. To get manual focus at any time, simply grab the ring on the Canon 85mm f1.8. Canon EF 100mm f/2.8 USM macro test side. Canon 100mm har det meste man kan ønske seg. Det er godt bygget. Det har en brennvidde som er fin å jobbe med til macro foto. Det er også en fokusmotor som er i toppklassen. Den er rask, stillegående, presis og man kan.\n04.02.2020 · Macro with extended reach. The EF 100mm F/2.8 Macro USM is a medium telephoto lens with a macro feature providing a 1.0x magnification. With eight aperture blades, creative background blur is possible to help make the subject stand out. The lens features a focusing limiter switch which limits the focus range to improve AF speed. The Canon EF 200mm f/1.8 USM L can provide beautiful, crisp pictures even in low light, and its impressive focal length allows you to shoot from far away. Whether you're trying to take photographs of the night sky or capture a stunning image of wildlife, this lens will greatly improve your collection. EF 100 mm f/2,8 Macro USM fra Canon er et kort teleobjektiv med internfokusering og mulighet for makrofotografering ned til 1:1 forstørrelse.Makro 1:1Arbeidsavstanden på 1:1 er 149 mm som gjør dette objektivet perfekt når du skal fotografere skye dyr eller insekter. Dette gjør det også enklere å belyse motivet samt man kan ta detaljer av f.eks deler uten å skygge for/kræsje med.\nThe trademark red ring marks the 100mm f/2.8L Macro IS USM as one of Canon's pro-grade lenses. The 100mm f/2.8L is a stellar macro lens, but it's useful for more than that. It can also function quite well as a portrait lens in a pinch. It's more expensive than wider aperture primes like the Canon EF 85mm f/1.8, but if you enjoy both portraiture. If you’d like to get your hands on a legendary Canon lens without having to take out a mortgage, the 200mm f/1.8 may be one to consider.Sometimes referred to as the “Eye of Sauron” — a.\nIkke Et Registrert Navneområde Django\nCarhartt Wip Chore Coat Black\nBeste Te Å Drikke På Tom Mage\n5000 Delt På 6\nAutomatisk Vakuum Maskin\nBeste Nettsted Å Selge Porsche\nLes- Og Skriveverksted Leksjonsplaner\nIdeer Til Takknemlighet Av Ansatte\nBeste Fitness Tracker For Iwatch\nCampus Sorte Sko\nGode gaver Til Mannen Din\nTinyiko Kruger Lodge\nUnc Athletics Staff Directory\nTesla Model 3 Rwd Winter\nHåndlagde Gaver Online\nBetal Kapital Ett Kort Med Debetkort\nEr Modell I Dbms På Hindi\nBeste Broadway-musikaler For Familier\nLuzhniki Stadium Beliggenhet\nHodepine På Venstre Side Av Hodet Over Øye\nPuma Basketball Demarcus Cousins\nSosialt Fobi Forum\nSving Og Sovende\nCreative Cloud Account Management\nCbest Test Datoer 2018\nAlexis Bittar Halskjede\nOvercooked 2 Online Multiplayer\nExplorer St 2020\nSveisede Ledningsgjerde Paneler\nYaky Weave Menneskehår\nC Wonder Poser Amazon\nKkr Mot Kings Xi Punjab Live\nUhaul-priser I Nærheten Av Meg\nLast Ned Word 365 Gratis\nCabelas Elektriske Hansker\nJeffrey Stoessl Md\nBestill Blomster Samme Dag\nRambox Divider Mal\nØvelse Og Lekser 2.9 Divisjon Av Problemløsing\nPak Vs Eng T20 2018","domain":"optical_engineering"}
{"url":"http://www.taiwanglobalization.net/portfolio/batch-m18/3d-ophthalmic-diagnostics-instruments-from-crystalvue","date":"2024-03-01T23:40:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475711.57/warc/CC-MAIN-20240301225031-20240302015031-00713.warc.gz","language_score":0.8867220878601074,"token_count":409,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__90417890","lang":"en","text":"On September 16th 2019, Crystalvue Medical Corporation will present two of its Eye Care products at Taiwan Ophthalmic Forum which is held in parallel with the largest ophthalmic gathering in Europe, the ESCRS Congress.\n3D Digital Retinal Camera\nThe NFC-700 is an automatic Non-Mydriatic Retinal Camera developed to automatically capture high resolution colour and monochrome images of the retina and the anterior segment of the human eye. Crystalvue developed the NFC-700 with fully automatic 3D tracking and image capture to make it the most essential diagnosis instrument for ophthalmologists to inspect and record the patients’ retina. This helps the optometrist or ophthalmologist to find certain diseases like Macular degeneration or Retinal Toxicity. Because of its non-mydriatic nature, the diagnosis can be performed with much more comfort for patients then with traditional instruments. This innovation from Taiwan has an easy to use 10.1” touch screen to select fixation points for the 12M pictures and can be used to montage the captured images. MORE INFO\n3D Digital Tonometer\nToneVue is the most essential non-contact diagnosis instrument for eye care professionals to measure Intraocular Pressure (IOP) with their patients. IOP is an important aspect in the evaluation of patients at risk of glaucoma. This innovative Tonometer, with fully automated 3D eye-tracking and soft air puffs, makes measuring the pressure inside the eye a comfortable experience for the patient. The TonoVue is developed by Crystalvue to be durable and easy to use through 8” touch screen, integrated software and printer. MORE INFO\nTaiwan Ophthalmic Forum – Eyes on the Future\nParis, 16/09/2019 16:00-19:00\nInterested to make these innovative diagnostic instruments part of your distribution portfolio, want to meet the people behind these innovations, like CEO William Wang? Ask us to be invited for this exclusive occasion.","domain":"optical_engineering"}
{"url":"http://defensenews-updates.blogspot.com/2011_01_20_archive.html","date":"2020-07-05T14:02:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655887360.60/warc/CC-MAIN-20200705121829-20200705151829-00258.warc.gz","language_score":0.9582171440124512,"token_count":591,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__62512948","lang":"en","text":"Optical parametric oscillators have been used on aircraft to confuse shoulder-launched heat-seeking missiles, but this technology is expensive and fragile, not suitable for the rigors of helicopter flight. Current laser-based IR countermeasures, consisting of 84 pieces of moving optics, are not considered a practical option for helicopter flight.\nIslam and his team created an all-fiber integrated supercontinuum laser that provides up to 10.5-W time-averaged power with a continuous spectrum from approximately 0.8 to 4 µm, according to their report in the IEEE Journal of Selected Topics in Quantum Electronics, March/ April 2009. They stated that the laser is generated by a combination of standard single-mode fibers and fluoride fibers pumped by a laser diode-based cladding-pumped fiber amplifier system. They also demonstrated that the output of the supercontinuum laser pulse pattern can be adjusted by directly modulating the seed laser diode and controlling the amplifier gain with a signal feedback technique.\n“This is an all-fiber integrated laser with no moving parts. It is reliable, rugged and easy to maintain. The off-the-shelf components from telephone networks are relatively inexpensive and are based on a proven technology, Islam said.”\nReliability, relatively low cost and a basis in proven technology are attractive qualities to the US Department of Homeland Security, which has been looking for better ways to protect commercial and military aircraft from shoulder-launched missile attacks. The laser system is being created at the university and at Islam’s spin-off company, Omni Sciences Inc. It is being commercialized by the company, which recently received a total of $1 million in grants from the US Army and DARPA to build a second-generation prototype, according to a press release from the university.\nA second-generation prototype now in development is expected to have increased power and to be smaller and more rugged. Islam and his team are working to bring down the weight of the system from 25 to 10 lb or lower. “It is easy to scale up the power of the laser and to increase repetition rate and pump power with no real change in architecture,” he said.\nAmong the challenges for the technology, from the engineering standpoint, are the thermal management and packaging aspects. The US government must rate the technology as having advanced from the level at which its components are validated in a laboratory environment to the level at which its prototype is demonstrated in a relevant environment.\nScientific hurdles include the need to expand the long wavelength and increase bandwidth, Islam said. “The supercontinuum laser is a platform technology and is very flexible for a wide range of applications.” These applications could include monitoring at national borders, active remote sensing of natural gas leaks, and, in the medical field, destroying harmful fats and lipids in the human body in the fight against Type 2 diabetes.","domain":"optical_engineering"}
{"url":"https://www.techtreasure.pk/gaming-products/gunnar-maverick-computer-glasses-gunmetal-frame-amber-lens-tint-mav-05001","date":"2023-04-02T11:40:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950528.96/warc/CC-MAIN-20230402105054-20230402135054-00359.warc.gz","language_score":0.9320120215415955,"token_count":126,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__205108226","lang":"en","text":"Help reduce the strain on your eyes caused by hours in front of the computer or TV with the gunmetal with amber lenses GUNNAR Maverick Computer Glasses. They are designed to block up to 65% of harmful blue light and up to 100% of UV light, which may reduce the risk of macular degeneration. They feature adjustable floating nose pads and a lightweight design at just 1.1 oz, making them well suited for long-term use.\nAn email notification will be sent to you whenever price of this product changes.\nAn email notification will be sent to you whenever this item is available in stock.","domain":"optical_engineering"}
{"url":"https://zibo.nl/en/products/zibo-cameraset-action/","date":"2023-12-01T03:45:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00284.warc.gz","language_score":0.7556672692298889,"token_count":344,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__80489550","lang":"en","text":"Get you machine in your cabin!\nApplication examples are back-up cameras on trucks and earth moving machines, procedure monitoring in agricultural machines, etc. The system is provided with a large 7″ flat screen colour monitor with sound and a camera equipped with infrared LED light support for situations with low ambient light.\n- Multi-voltage (8-32 V DC). Power consumption: < 10W\n- Ports for up to 3 cameras\n- Priority switch (for automatic channel choice when activating the reverse gear)\n- Automatic channel switching possible on 2 channels;\n- interval time adjustable from 2 to 20 sec.\n- 7″ TFT-LCD colour monitor (189 x 122 x 24 mm)\n- LCD screen temperature range: -10° up to + 50°C\n- Mirror function on monitor input signal\n- Wireless monitor function remote control\nTechnical specifications of the camera:\n- Camera with Sony CCD and stainless steel hood and bracket\n- Minimal illuminance (without LED): 0.5 lux\n- Angular aperture: 92° (f=3.6 mm)\n- Camera temperature range: -30° up to + 50°C (with lens heating)\n- The camera is equipped with a 1 meter cable with a waterproof (IP67)connector\n- Camera connection cable\n- 1x Colour monitor with remote control.\n- 1x 92° colour camera\n- 1x Terminal box / switch box\n- 1x 20 meter camera connection cable\n- Mounting material\n- Instruction manual\nZIBO Cameraset Action! (kpl. set € 295,= excl. tax)\nFeel free to request a quote:","domain":"optical_engineering"}
{"url":"http://jigarbathia.blogspot.com/","date":"2021-09-16T20:49:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780053759.24/warc/CC-MAIN-20210916204111-20210916234111-00669.warc.gz","language_score":0.9199960231781006,"token_count":111,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__181266007","lang":"en","text":"SMILE laser vision correction.\nSmile is a third generation laser vision correction for the eye. No flap is made on the cornea thus minimal trauma to the cornea. There is no burning of the tissue as in conventional lasik surgery or prk. Hence the tissue preservation is very good ensuring minimal dry eye disorders after the surgery. The structural integrity of the cornea is preserved in the process there is no weakening of the corneal layer.\nThis latest the most advanced method for removal of glasses / laser vision correction is available.","domain":"optical_engineering"}
{"url":"https://ao.jpl.nasa.gov/jobs.html","date":"2021-11-29T15:33:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358774.44/warc/CC-MAIN-20211129134323-20211129164323-00525.warc.gz","language_score":0.8782803416252136,"token_count":430,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__62759740","lang":"en","text":"NASA Postdoctoral Program position - Visible Light Adaptive Optics for Extreme precision radial velocity measurements of Exoplanets\nThe extreme precision radial velocity (EPRV) technique holds the promise of discovering terrestrial planets orbiting solar type stars. Most plans for EPRV measurements have assumed the use of seeing limited spectrographs using multi-mode fibers, but adaptive optics (AO) can feed single mode fibers, which would produce compact spectrographs that would be more stable. For this and a number of other reasons, AO fed spectrographs promise to have smaller RV measurement errors. The vast majority of AO systems have been developed in the near-infrared, but EPRV studies will most likely be done in the visible.\nWe welcome applicants interested in understanding the impact of AO on EPRV measurements, particularly those aspects of the EPRV error budget that change when an AO system is used in conjunction with a diffraction-limited spectrometer. In addition, applicants interested in modeling visible light AO performance are encouraged to apply. Other possible areas on research are determining ways to improve the fiber coupling efficiency in single and multi-mode fibers, such as improved coupling optics, methods for maintaining fiber alignment, or for correcting non-common path aberrations in the fiber arm of the AO system. In addition the applicant will have have the opportunity to work with a diffraction limited spectrograph for RV measurements at Palomar in the Near-IR and the other AO instruments at Palomar.\nMore information is available through USRA NASA Postdoctoral Programs website\nNASA Postdoctoral Program position - Adaptive Optics for Laser Communication & Astrophysics\nJust coming online for the 2021 mission launch is the AO system for the Laser Communication Relay Demonstration (LCRD) mission. This AO system communicates via lasers with a geosynchronous satellite. The AO system is used to feed a single mode fiber and has already achieved Strehl ratios of 90% under operational conditions. The candidates will be able to work with the system and collect data for analysis.","domain":"optical_engineering"}
{"url":"https://journals.agh.edu.pl/csci/article/view/3438","date":"2023-03-29T03:02:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948932.75/warc/CC-MAIN-20230329023546-20230329053546-00299.warc.gz","language_score":0.9033991694450378,"token_count":315,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__236150295","lang":"en","text":"Salt and pepper noise reduction and edge detection algorithm based on neutrosophic logic\nKeywords:Neutrosophic set, Digital image processing, Image analysis, Image denoising, Edge detection\nNeutrosophic set (NS) is a powerful tool to deal with indeterminacy. In this paper, the neutrosophic set is applied to the image domain and a novel edge detection technique is proposed. Noise reduction of images is a challenging task in image processing. Salt and pepper noise is one kind of noise that affects a grayscale image significantly. Generally, the median filter is used to reduce salt and pepper noise; it gives optimum results while compared to other image filters. Median filter works only up to a certain level of noise intensity. Here we proposed a neighborhood-based image filter called nbd-filter, it works perfectly for gray image regardless of noise intensity. It reduces salt and pepper noise significantly at any noise level and produces a noise-free image. Further, we proposed an edge detection algorithm based on the neutrosophic set, it detects\nedges efficiently for images corrupted by noise and noise-free images. Since most of the real-life images consists of indeterminate regions, neutrosophy is a perfect tool for edge detection. The main advantage of the proposed edge detector is, it is a simple and efficient technique and detect edges more efficient than conventional edge detectors.","domain":"optical_engineering"}
{"url":"https://magnumsports.com.au/products/rzr-hd-ranging-eyepiece-w-reticle","date":"2024-03-04T18:52:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476464.74/warc/CC-MAIN-20240304165127-20240304195127-00118.warc.gz","language_score":0.7666094303131104,"token_count":581,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__106023309","lang":"en","text":"Razor Hd Ranging Eyepiece W/ Reticle\nVORTEX RAZOR HD RANGING EYEPIECE 22 X with RETICLE MOA Code VORS85REAUsed in conjunction with the latest generation Razor® HD 27-60x85mm spotter, range work, calling shots and spotter/shooter communication become seamless. It's essentially like having a ruler in your spotting scope —which comes in quite handy. Just like many of our riflescopes, the eyepiece is available in both MOA and MRAD configurations to match the reticle subtension markings and turret graduations in your riflescope.\nThis eyepiece is specifically designed for use with the latest generation 27-60x85mm Razor® HD spotting scopes-it is not compatible with the 65mm and 50 mm Razor® HD models.\nThis eyepiece is specifically designed for use with the latest generation 27-60x85mm Razor® HD spotting scopes— it is not compatible with the 65 mm or 50 mm Razor® HD models.\nRAZOR HD 22X MOA RANGING RETICLE (85mm scopes only)\nHashmarked ranging reticle using MOA-based subtension lines for ranging, holdover, and windage corrections. Secondary ranging references facilitate rapid range estimating.\nHD Optical System Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission.\nXR™ Lens Coatings Premium anti-reflective coatings on all air-to-glass surfaces provide superior light transmission for exceptional clarity and low-light performance.\nShockproof Designed to withstand the highest levels of recoil and impact.\nMagnification (per scope) 22x\nLinear Field of View (per scope) 130.3′ feet/1000 yards\nAngular Field of View (per scope) 2.5 degrees\nEye Relief 31 mm\nLength 7.8 cm / 3.1 inches\nWeight 326 grams / 11.5 oz.\nVortex Razor HD 22x Ranging Reticle Spotting Scope Eyepiece (MRAD)\n- Fixed 22x Power\n- For 27-60x85mm Razor HD Spotting Scopes\n- Modified Crosshair Ranging Reticle\n- HD Optical System\n- XR and ArmorTek Lens Coatings\n|Angle of View\n|Field of View\n|130.3' @ 1000 yd / 43.3m @ 1000 m\n|L: 3.1\" / L: 7.9cm\n|11.5oz / 326g","domain":"optical_engineering"}
{"url":"http://www.lenslenders.ca/rent_details.php?sku=O1435F2SWD","date":"2013-06-19T19:25:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368709037764/warc/CC-MAIN-20130516125717-00081-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8134515285491943,"token_count":172,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__178263800","lang":"en","text":"|Rental Term||Rental Price|\n|First Week Rental||$ 89|\n|Additional Weeks Rental||$ 39 each|\n|Additional Days Rental||$ 9 each|\nEnter your postal code to check Olympus 14-35mm f/2 SWD rental availability to your location.\nThe Olympus 14-35mm f/2 SWD is a high-performance, wide angle zoom lens with SWD hypersonic autofocus and Four Thirds mount. It provides an image angle of 75 to 34 degrees, roughly equivalent to a 28-70mm focal length lens on a 35mm film camera.\nFast Aperture: The large aperture of this lens helps give you fast shutter speeds in available light and excellent depth-of-field control.\nWeight: 900 grams\nShipping: Free to anywhere in Canada","domain":"optical_engineering"}
{"url":"https://tarainstruments.com/milk-analyser-dairy-spac-ft%E2%80%8B/","date":"2020-07-07T05:44:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655891654.18/warc/CC-MAIN-20200707044954-20200707074954-00501.warc.gz","language_score":0.8472561836242676,"token_count":318,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__161549952","lang":"en","text":"Milk Analyser – DairySpec FT is designed for a wide range of dairy laboratories and processing facilities that need a highly accurate instrument for the analysis of dairy components, including Fat, Protein and Lactose. Engineered in accordance with Bentley Instruments’ rigorous design principles and quality management systems, the DairySpec FT provides precise and accurate measurements, as well as exceptional reliability.\nBentley Instruments’ DairySpec FT component analyzer uses an industrial Fourier Transform Spectrometer (or FTIR) that captures the complete infrared absorption spectrum of the milk sample for component analysis. Collecting the complete spectrum allows the calibration to be based on all spectral characteristics of each particular component. The infrared spectrum is permanently stored so that at any time in the future other calibrations may be retroactively applied to your data.\nDairySpec FT features\n- Ergonomic touch-screen display monitor simplifies operator interface.\n- Powerful Windows-based software integrates simultaneous control, data collection, analysis, archiving, and report generation.\n- Interferometer is laser-referenced and contained within a hermetically-sealed and temperature-regulated optical deck.\n- Internal heated reservoir provides for auto-rinse and auto-zero functions.\n- Proven optical deck provides highly accurate analysis of energy absorption over the entire mid-infrared spectrum.\n- Integrated sample heater allows for cold product analysis.\n- Laser-drilled pipette filters sample at inlet.\n- Front panel LEDs provide immediate visual feedback for operators on overall instrument status and operati","domain":"optical_engineering"}
{"url":"http://remingtoncwys889.bloguetechno.com/Eye-Surgery-6437278","date":"2018-12-15T00:20:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826530.72/warc/CC-MAIN-20181214232243-20181215014243-00551.warc.gz","language_score":0.9580190181732178,"token_count":1317,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__156813244","lang":"en","text":"Eye Surgical procedure has come to be a mainstream technique of vision correction, as well as this short article will describe the benefits and also disadvantages of 3 various methods being used to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis and also is an eye surgical system which completely corrects vision by removing a slim layer of the cornea. This treatment works best on patients with moderate to high levels of myopia (nearsightedness), reduced to moderate levels of hyperopia (farsightedness) as well as astigmatism connected with nearsightedness, and also who have thick corneas. It is one of the most widely known surgical vision adjustment approach.\nIndividuals with typical eye sight see things plainly because photos are brought into a correct centerpiece by the cornea as well as lens of the eye. Preferably, the cornea's curvature is evenly matched to its size in a typical eye. People with astigmatism, myopia or hyperopia have off-and-on formed corneas, so the objects seen are not focused effectively. LASIK modifications corneal shape by exact removal of corneal tissue, as well as by doing so deals with the eyes' focusing power.\nThere are, however, risks to LASIK eye surgical treatment.\nThere is a remote possibility of total loss of vision. If this occurs, it is normally due to the fact that the person had a pre-existing condition which ought to have precluded the surgical procedure to begin with, such as pregnancy, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. People with huge students are also poor candidates for LASIK. Dry eye syndrome will be intensified by this procedure.\nA couple of people grumble that they permanently see \"ghost\" pictures, have blurred vision, decreased comparison and negative night vision. When LASIK was first presented, 5% of patients had post-operative problems; however, refinements in the procedure have caused this rate to drop to much less compared to 1% if LASIK is done by experienced practitioners and also clients are appropriately evaluated before surgical treatment. If problems do occur, they could frequently be resoved by a retreatment.\nFDA has actually approved LASIK laser eye surgery considering that 1998. While there are a great deal of completely satisfied people, there are nevertheless no long-term researches about its impacts. Understand the restrictions and the threats of LASIK eye surgical procedure before you sigh for the procedure.\nThough less popular, these tiny implants can boost vision in clients with light to moderate myopia without the risk of permanent eye damages integral in the tissue elimination technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which stretch it to presume a flatter shape. Though a little less precise compared to LASIK, they are removeable and replaceable, so if the client has an unexpected over- or under-correction, the implant can be removed as well as an additional of a different dimension placed to obtain the desired adjustment. The implants lie at the edge of the cornea, so the main visual area is totally undamaged and undamaged, and the toughness of the cornea is undiminished, making it a far better alternative for pilots as well as those who participate in contact sporting activities where eye injury is an opportunity.\nIntacs are unsuitable for extreme nearsightedness and greater than minor astigmatism (1.00 diopters), as the cornea could only be extended until now. If the Intacs are eliminated, vision go back to its preoperative level. Other than vision modification, Intacs are likewise used to treat keratoconus.\nIntacs are FDA accepted and Ten Years research studies have disclosed no significant problems with Intacs as well as very few client complaints; however, since the treatment takes much more training than LASIK, there are fewer eye surgery facilities providing it. Nonetheless, home the Intacs site gives a listing of experts in each state, as well a couple of in Canada, Europe and Mexico.\nBecause many individuals do not intend to take the chance of LASIK and also Intacs can not aid those with extreme vision problems, intraocular lens implants (IOL) are a new choice authorized by the FDA in 2004 to deal with modest to severe nearsightedness. The Artisan lens, manufactured by Ophtec, is similar to the sort of lens dental implant made use of to recover vision following cataract eye surgery.\nThe new IOL, called the Artisan, is planned for only patients who have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not replace the all-natural lens, yet is inserted in front of it. The major trouble discovered with the implant was the stable loss of endothelial cells in the corneas of people that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are necessary in maintaining the cornea clear. A three-year study showed a continuous consistent loss of endothelial cells of 1.8 percent a year. At this moment, no one can predict whether this loss will continue at the same rate indefinitely, or perhaps its effect on corneal feature.\nTo minimize long-term results of the gadget on the corneal endothelium, the FDA is best site needing that the brand-new lenses be labelled to define that they should only be dental implanted in people whose corneal endothelial cells are thick adequate to stand up to small cell loss.\nA lot more serious complications were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is requiring Ophtec to conduct a five-year follow-up survey of its implant people to better examine the post-surgical occurrence of cataract growth, retinal detachment and also other ophthalmic diseases.\nThe Craftsmen lens is intended to be a permanent implant.Though it can be eliminated operatively, vision could not constantly go back to what it was before getting the lens. Since it does not impact astigmatism, people with this trouble might still call for glasses.","domain":"optical_engineering"}
{"url":"https://kutop.com/5v-16x16-pixels-ws2812b-ws2811-programmable-rgb-led-panel.html","date":"2023-09-26T16:56:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510214.81/warc/CC-MAIN-20230926143354-20230926173354-00740.warc.gz","language_score":0.7657958269119263,"token_count":375,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__212821350","lang":"en","text":"5V 16x16 pixels WS2812B WS2811 programmable RGB LED panel\n- Buy 100 for $16.95 each and save 11%\n- Buy 1000 for $15.95 each and save 16%\nMade in Shenzhen of China, reliable quality, direct from factory, good price\nThis panel works with T-1000S, T-300K controllers and 5V output power supplies\n16*16 total 256 pixels WS2812B LED digital panel light (WS2811 IC controlled)\nSize:16cm*16cm, DC 5V working voltage\nWork with the programmable SD controller, it can make LED screen\nThe WS2811 SMD 5050 RGB LED, every LED built-in (embedded) a WS2811 IC, therefore every one LED lighting effect can be controlled, every RGB LED is digital addressable.\nDream color lighting\nMatch use controller can appear colorful curtain-up/ flow water/raindrop/jump flash and so on hundreds of lighting effect, you can also edit animation effect by Corel Draw/Flash/LedEdit software.\nMaking LED screen, LED wall, advertising board. Apply to hotel, KTV, bars, advertisement company, decoration company, the city lighting project, entertainment and leisure places lighting.\n1. Emitting color: pixel SMD 5050 RGB, IC WS2811\n2. Working voltage: DC 5V\n3. Power: 76W\n4. Dimension: length 16cm, width 16cm\n5. LED quantity: 256 LEDs RGB SMD 5050, 256 pixels, 16*16 pieces\n6. Protection rate: Non-waterproof\n7. Working mode: external controller Arduino compatible.\n8. Connection: VCC: RED; GND:BLACK; DAT:BLUE","domain":"optical_engineering"}
{"url":"https://daviddfriedman.blogspot.com/2011/10/evolution-of-camera.html","date":"2024-02-29T15:07:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474843.87/warc/CC-MAIN-20240229134901-20240229164901-00143.warc.gz","language_score":0.9868665337562561,"token_count":515,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__180564262","lang":"en","text":"Long ago when the world was young and cameras used film, there were two kinds. With a viewfinder camera, the human looked through the viewfinder, the camera looked through the lens, and the two views were different—significantly different for close-up shots. A single lens reflex camera (SLR), typically larger and more expensive, contained an elaborate internal mechanism to permit the human to view the scene through the same lens that the camera saw it through. To take a picture, the mirror that was directing the image up to the prism that bent it to reach the human's eye swung up and out of the way, in order that the light could get to the film instead. (There is also evidence in the fossil record of a still earlier design known as a twin lens reflex).\nAfter digital cameras came along and I started using them, it occurred to me that the image I was seeing on the view screen was the same image that would be recorded on the camera's memory—one of the advantages of using electronics instead of optics for the purpose. I was already looking through the camera's lens, so no need for a mirror and prism. Oddly enough, however, SLR's (called dSLR's since they were now digital) were still being made, were still large and expensive, still had an elaborate apparatus of moving mirror and prism, and were still regarded as what serious photographers used.\nThey had two significant advantages over the less expensive sorts of digital cameras—interchangeable lenses and much larger imaging sensors, permitting them to take better pictures. They also had optical viewfinders that let you look through the camera's lens. The resolution perceivable by the human eye is higher than the resolution of a camera's viewscreen, so getting the image directly to the human was worth something—but, given the quality of the available screens, not very much. That, at least, was how I saw it—making the internal mirror and related apparatus the photographic equivalent of the human appendix.\nIt couldn't last—and, fortunately, didn't. It eventually occurred to someone in the industry that a camera with interchangeable lenses and a large sensor but without mirror, prism, and optical viewfinder could be very nearly as useful as a dSLR but considerably smaller and less expensive.\nMy Sony NEX-3 arrived yesterday. It cost about half as much as a comparable dSLR—and has the same sized sensor. With the smaller of its two lenses it is not very much larger than the pocket camera it replaces.","domain":"optical_engineering"}
{"url":"http://gcep.stanford.edu/research/factsheets/upconvertingelectrodes.html","date":"2022-01-21T12:13:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303356.40/warc/CC-MAIN-20220121101528-20220121131528-00246.warc.gz","language_score":0.8599743843078613,"token_count":1021,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__34622869","lang":"en","text":"|Research Areas & Activities Renewables Bioenergy Solar Photovoltaics Solar Water Splitting Other Solar Conversion Negative Emissions Hydrogen Carbon-Based Energy Systems Electrochemistry and Electric Grid Other Research Analysis Activities Technical Reports||\nRenewables > Solar PhotovoltaicsUpconverting Electrodes for Improved Solar Energy Conversion\nStart Date: September 2011\nJennifer Dionne and Alberto Salleo, Department of Materials Science and Engineering, Stanford University\nOnly a small portion of the solar spectrum can be used by photovoltaic and photocatalytic devices, which rely on photon absorption. The results will enable a scalable, single-junction solar cell capable of utilizing nearly the entire solar spectrum, without the need for solar concentration. The proposed technology is aimed at the introduction of cheap, highly efficient solar cells which would eliminate the largest obstacle to widespread solar-energy deployment – namely, the high cost per unit energy produced, which must compete with a cost of $0.06/kW•hr for grid power. The project focus will be the use of solution-dispersed materials that will enable the use of low-cost and highly scalable manufacturing technologies such as spray coating.\nCurrent photovoltaic and photocatalytic technologies can harvest only a small fraction of energy, since they are generally unable to utilize photons with energies below the cell bandgap – the amount of energy a photon needs to free an electron from its bond. These transmission losses severely limit the maximum photovoltaic efficiency possible with a single junction device. For example, an ideal single-junction solar cell with a bandgap of 1.7 eV wastes approximately 49% of the sun's power. And transmission losses severely limit the maximum photovoltaic efficiency possible with a single-junction device.\nIn recent years, considerable effort has been given to developing renewable energy technologies that reduce the spectral mismatch between solar cells and the solar spectrum. Rather than adapting the active semiconducting layer of a solar cell to better utilize sub-bandgap light, an upconverter can be used to reduce transmission losses. Placed behind a solar cell, the upconverter transforms low-energy photons to higher-energy photons that can then be absorbed by the solar cell and contribute to photocurrent. Upconversion has been observed in many materials systems, including lanthanoid ions, transition metal ions, metal-ligand complexes and semiconducting quantum dots. Such materials have been used for optical communications, photonic devices and in vivo bioimaging.\nFigure 1 illustrates a schematic of the upconverting solar cell design. An upconverting electrode is placed behind the active semiconducting region of a cell to collect transmitted photons. The upconverter transforms the energies of these transmitted photons to energies that can be absorbed by the solar cell. The electrode consists of synthesized nanostructures, including upconverter-doped dielectric nanoparticles and silver nanowires, which can be deposited over large areas by spray coating. While the upconverter-doped nanoparticles improve absorption of sunlight, the silver nanowires provide direct electrical contact to the cell, enabling carrier extraction.\nThe cell design is characterized by three innovative but essential parameters: (1) decoupled optical and electrical parameters, (2) enhanced photon absorption above and below the bandgap, and (3) excellent electrical conductivity.\nAnalytic and computational models will be used to determine the photovoltaic efficiency enhancements that can be achieved with this upconverter electrode. There will be three broad categories of research: (1) fundamental photophysics of broadband solar absorption, (2) new synthetic strategies for low-cost, solution-based processing, and (3) photovoltaic device fabrication and characterization. Full-field simulations will be used to model the nanophotonic properties of upconverting nanoparticles near plasmonic nanowires. Synthetic attention will be given to controlling the shape, size and crystalline phase of upconverter-doped nanoparticles. Experiments will explore the electrical and optical properties of these upconverting electrodes, including measurements of upconversion photoluminescence efficiencies, upconverter radiative lifetimes and electrical transport through nanoparticle-decorated nanowires. The proposal will culminate in photovoltaic cell fabrication and characterization using the proposed upconverting electrodes.\nFigure 2 shows how the three-level upconverting system will be mathematically modeled.\nRestricted Use of Materials from GCEP Site: User may download materials from GCEP site only for User's own personal, non-commercial use. User may not otherwise copy, reproduce, retransmit, distribute, publish, commercially exploit or otherwise transfer any material without obtaining prior GCEP or author approval.","domain":"optical_engineering"}
{"url":"http://www.rockbottomgolf.com/tifosi-2013-mast-interchangeable-mens-sunglasses.html","date":"2014-08-22T13:45:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-35/segments/1408500823634.2/warc/CC-MAIN-20140820021343-00466-ip-10-180-136-8.ec2.internal.warc.gz","language_score":0.8547734022140503,"token_count":486,"dump":"CC-MAIN-2014-35","global_id":"webtext-fineweb__CC-MAIN-2014-35__0__1030018","lang":"en","text":"About This Item\n- Manufacturer: 2013 Mast\n- Model: 2013 Mast Interchangeable\n- SKU: 16TIFMASTIC11111111BLK01\n- Color: See DropDown\n- New to the golf lingo?\nCheck out the Golf Glossary\nTifosi Optics Interchangeable sunglasses feature decentered shatterproof polycarbonate lenses to virtually eliminate distortion, give sharp peripheral vision, and offer 100% protection from harmful UVA/UVB rays, bugs, rocks, or whatever comes your way. Lens installation/removal is fast and easy. The Tifosi Optics™ Clear lenses enable the wearer to have protection at night, or other extremely low lighting conditions. Although clear, these Tifosi Optics lenses still offer 100% UVA/UVB protection.\nThe Tifosi Optics™ Smoke/Brown lens tint is perfect for bright sun. They have the least amount of color distortion and enhance color.\nThe Tifosi Optics™ AC Red™ lens tint offers an enhanced view in cloudy or foggy weather. AC red lenses provide contrast in mid to low lighting conditions.\nThe Tifosi Optics™ GT™ lens tint features \"object illumination,\" which enhances your ability to pick up a ball in flight by providing a balance of target and background brightness. Whether you are at net or tee, the GT tint is designed to help keep your eye on the ball. The Tifosi Optics EC™ lens tint is designed for athletes seeking an edge in distinguishing terrain details. The hue of EC increases light contrast by filtering the blue light spectrum that is responsible for optical blurring and decreased contrast in bright light conditions. Use this lens tint for spotting the subtle breaks of a putting green or the lines of your local single track.\nAll offer 100% protection against harmful UVA/UVB rays.\nMade of Grilamid TR-90, a homopolyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and UV damage\nHydrophilic rubber ear and nose pieces for a no-slip fit\nHydrophilic Adjustable Temples\nDesigned to increase grip when in contact with sweat\nHydrophilic rubber resists aging and UV breakdown\nAdjustable temples allow for a customizable fit and increased wearing comfort.\nWeight – 37 grams\nFit – Medium to Large","domain":"optical_engineering"}
{"url":"https://www.physics.wisc.edu/events/?date=2014-08-07","date":"2023-10-04T13:11:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511369.62/warc/CC-MAIN-20231004120203-20231004150203-00203.warc.gz","language_score":0.8682467341423035,"token_count":349,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__45354311","lang":"en","text":"Events at Physics\nEvents on Thursday, August 7th, 2014\n- R. G. Herb Condensed Matter Seminar\n- Collective Atom-Photon Interactions toward a Hybrid Quantum System\n- Time: 10:00 am\n- Place: 5310 Chamberlin Hall\n- Speaker: Jongmin Lee, Joint Quantum Institute (JQI), University of Maryland\n- Abstract: The nanofiber-based optical lattices with a large optical depth have been demonstrated for 87Rb atoms using two-color evanescent optical trapping fields of 750nm and 1064nm lights. 87Rb atoms in our lattices experience light shifts (to the blue) on 5P3/2 to all upper transitions, and the absorption profile is shifted to the blue. In addition, the ellipticity of a HE11 mode leads to strong Zeeman broadening, both on 5P3/2 and 5S1/2, due to the vector light shifts. This inhomogeneous broadening based on light shifts, atomic temperature distribution, and population redistribution was studied.\nIn addition, a dual-wavelength high-finesse cavity system having homogeneous atom-cavity coupling and high cavity finesses (180,000 for 780nm and 120,000 for 1560nm) has been studied for the collective atom-cavity interactions such as the spin-squeezing for atomic sensor applications, the macroscopic self-trapping behavior (quantum simulation) toward the macroscopic Schrodinger cat state generation, and Raman lasing with atomic gain medium toward a sub-Hz linewidth laser will be addressed.\n- Host: Mark Eriksson","domain":"optical_engineering"}
{"url":"https://www.topelighting.com/en/led-linear-luminaire-liman-for-bright-lighting-solutions","date":"2021-05-09T04:39:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988955.89/warc/CC-MAIN-20210509032519-20210509062519-00630.warc.gz","language_score":0.888835072517395,"token_count":314,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__92028539","lang":"en","text":"LED LINEAR LUMINAIRE LIMAN FOR BRIGHT LIGHTING SOLUTIONS\nThe linear LED luminaire LIMAN creates the effect of straight, narrowly concentrated light. Subtly elegant, versatile and easy to combine in a variety of environments. The aluminum housing ensures quality - a straight, polished, stable line. This guarantees a clear, even propagation of the light flux. This linear luminaire is easy to install and simple to maintain. Can be attached to the ceiling or hung at the desired height by adjusting the brackets.\nLinear LED luminaire LIMAN can be not only classic colors - gray, white, black, but also any other color. Bright yellow will lift anyone's mood, and the subtle color of terracotta will give the interior elegance. A unique opportunity for you to choose the length and color of the luminaire. You buy a product that is not only stylish but also economical. This option currently applies to larger projects.\nIf you choose to implement lighting solutions with the LIMAN LED luminaire during the project, our lighting specialists will apply the highest parameters, including a high CRI (color rendering index), when the colors of visible objects look more realistic and natural. This indicator is especially important when LED luminaires are designed in galleries, creative workshops or shops.\nLED lighting is becoming not only economical but also modern. In the long run, our team of specialists is constantly improving, striving to harmonize the highest parameters of LED lighting, creating a wide range of design applications.","domain":"optical_engineering"}
{"url":"https://fotoworkshops.com.au/product/nisi-filters-70mm-starter-kit/?add-to-cart=2978","date":"2019-12-06T13:42:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540488620.24/warc/CC-MAIN-20191206122529-20191206150529-00201.warc.gz","language_score":0.9116724729537964,"token_count":120,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__109400183","lang":"en","text":"The NiSi Filters 70mm StarterKit is the ultimate starter kit for landscape or seascape photographers with a compact or mirrorless camera. It has almost everything you need to get started – you just need to buy the adaptor ring to suit your lens. Its perfect for anyone who wants to create long exposure images and use ND filters &GND filters with multiple lenses up to 58mm a standard filter thread. The NiSi Filters 70mm StarterKit also represents a great saving than buying all the included items separately.\nThe NiSi Filters 70mm StarterKit includes the following:","domain":"optical_engineering"}
{"url":"http://bze.org.au/dr-ashraf-uddin-unsw-150116/","date":"2018-08-16T15:49:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221211126.22/warc/CC-MAIN-20180816152341-20180816172341-00196.warc.gz","language_score":0.8873580098152161,"token_count":238,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__51874968","lang":"en","text":"Dr Ashraf Uddin is an Associate Professor in the world renowned School of Photovoltaic and Renewable Energy Engineering at UNSW. The Beyond Zero team is also joined by expert guest interviewer Dr Scott Watkins who also specialises in organic PV.\nDr Uddin and Dr Watkins discuss the advantages of organic PV over traditional silicon PV, increasing efficiencies using tandem or stacked solar cells, the emergence of a new class of solar cell based on mixed organic-inorganic halide perovskite cells, comparisons of OPV with OLEDs (Organic Light Emitting Diodes), the negative effects of oxygen and moisture on lifetimes of OLEDs and OPV, light trapping techniques, future applications and the opportunity to commercially develop OPV technology. Dr Uddin is also course coordinator for the UNSW degree in PV and talks about the career prospects around the world.\nDr Uddin’s Research Interests include :\nOrganic Solar Cells\nPhotovoltaic device physics, design and characterisation\nDye-sensitised Solar Cells\nOrganic-inorganic hybrid Photovoltaic\nNew Concepts of photovoltaic","domain":"optical_engineering"}
{"url":"https://theblackfriday.deals/black-friday-nikon-binoculars-deals/","date":"2024-02-23T03:39:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474360.86/warc/CC-MAIN-20240223021632-20240223051632-00612.warc.gz","language_score":0.9301979541778564,"token_count":1558,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__21028542","lang":"en","text":"Top 20 Best Black Friday Nikon Binoculars Deals 2023 – Nikon Binoculars Black Friday Deals – Shop Online Nikon Binoculars and Save huge on this Black Friday.\nNikon is a well-known brand in the optics industry, and their binoculars are highly regarded for their quality and performance. Nikon offers a variety of binocular models designed for different purposes, including bird watching, wildlife observation, sports, and general outdoor activities.\nBlack Friday Nikon Binoculars Deals 2023\nNikon is renowned for its high-quality binoculars and cameras, which are well-designed. Nikon will meet your needs, whether you are looking for an affordable, highly portable model or a high-end, high-powered choice. But there are hundreds of binocular models the company offers, so how do you pick the right one for you? In this post, we listed Nikon Binoculars deals. Our team analyzed and shortlisted top products wit Black Friday Deals of Nikon Binoculars.\nNikon Binoculars Black Friday Deals 2023\nNikon is a renowned Japanese optics manufacturer known for producing high-quality binoculars. Nikon binoculars are renowned for their exceptional optics, durability, and versatility, making them a popular choice among birders, nature enthusiasts, and outdoor adventurers.\nNikon binoculars often experience price reductions during Black Friday sales. In 2023, various Nikon binocular models were discounted by up to 30% during Black Friday sales.\nNikon 7245 All-Terrain Binocular Black Friday\nThe Nikon 7245 Action EX Extreme All-Terrain Binocular is our overall top pick. With plenty of magnification and a very reasonable price, these lightweight binoculars are weatherproof, rugged, and strong.\nThese waterproof, fog-proof binoculars are on the heavier end, at 2.5 pounds. Using multi-coated 50-millimeter objective lenses, they give 10x magnification. The near focus distance is 23 feet, and adjustable rubber eyecups and a simple central focus knob are available. The lenses are made of thick, high-quality BAK-4 prism glass, and a protective rubber coating is available on the body. A carrying case, strap, and lens covers are part of the kit.\nWe discovered them to be very powerful and easy to use when we checked these binoculars. It is very hard to take off and put on the lens covers, and the near focus distance is further away than many other versions. A great lifetime guarantee is given by Nikon.\nNikon 7279 Travelite Binocular Black Friday\nNikon’s 7279 Travelite Binoculars are our next favourite choice. These mid-range binoculars are lightweight, but have a very cheap feel and do not produce a very clear image.\nThis model is extremely compact at 9.7 ounces. It provides magnification 12 times, with tiny 25-millimeter objective lenses. Aspherical are the multi-coated BAK-4 prism lenses, designed to create less distortion and increase picture sharpness. There is a click-type diopter adjustment loop, and it will flatten the rubber eyecups. A travel case, straps, and lens covers are included in the kit and a fair 13 feet is the near focus size.\nWe found them to create a slightly blurred image when we checked these binoculars. They have a cheaper feel, and prescription glasses don’t fit very well with the rubber eye cups. With its lifetime warranty, Nikon backs these binoculars.\nNikon 16006 Monarch 3 Binocular Black Friday\nThe 16006 Monarch 3 Binoculars from Nikon are pricey but provide very low magnification and come with less robust accessories.\nSold in a distinctive camo print, the 1.5-pound binoculars have very limited eight-time magnification with 42-millimeter objective lenses. Adjustable eye cups are available, and the near focus distance is only 9.8 feet. These binoculars, with nitrogen purging, are water- and fog-proof. There is a smooth central focus knob, and a comfortable silver-alloy coating is required for the lenses. A case, neck strap, and lens cap are included in the kit.\nWe considered the case to be less protective, and it didn’t feel as sturdy as the neck strap. The elevated price point of this model is difficult to justify, considering the low magnification. The lifetime warranty for Nikon applies.\nNikon NIK-8218 Waterproof Binocular Black Friday\nThe Nikon Trailblazer 10×25 ATB Waterproof Black Binoculars are inexpensive and lightweight, but also have a cheaper feel.\nThese compact 9.9-ounce binoculars give 10-fold magnification and have 25-millimeter lenses that are smaller. The body has a rubber coating that is robust, and there is a simple central focus knob, plus 11.5 feet of near focus distance. The multi-coated lenses are made of high-quality BAK-4 prism glass, and the interior is water- and fog-proof and nitrogen-filled.\nWe found these binoculars, with a very stiff focus knob and restricted magnification capacity, to have a cheaper feel. Nikon NIK-8218 Waterproof Binocular has a lifetime guarantee.\nNikon 8252 ACULON Binocular Black Friday\nA expensive, rather heavy option that provides high magnification but does not feel as robust is the Nikon 8252 ACULON A211 Zoom Binocular.\nThese two-pound binoculars give an incredible 22-fold magnification and have large objective lenses of 50 millimetres. A simple fingertip zoom control knob, adjustable rubber eyecups and rugged armoured rubber coating are available, plus turn and slide. The minimum focus distance is 49.2 feet, and it is multi-coated with high-quality BAK-4 prism glass lenses. A soft case and a strap are included in the kit.\nOur Pick – Nikon 7578 MONARCH 5 12×42 Binocular (Black)\nBest Black Friday Nikon Binoculars Deals 2023\nNikon Binoculars Explained\nWe found that these binoculars didn’t focus well at high magnification levels when we checked them, and there was some distortion. They didn’t feel particularly robust either. Nikon has a lifetime guarantee.\nOverall, you can say that a lot of benefits come with Nikon Binoculars. Don’t forget to check Official Black Friday Facebook Page or Facebook Group to find more interesting stuffs.\nBlack Friday deals are coming with a plethora of benefits, so do yourself a favor and check out some Nikon Binoculars from different brands. Be assured that you won’t burn a hole in your pocket as brands are expected to provide a huge discount on these Nikon Binoculars.\nHope this list of the best Nikon Binoculars will be helpful for you. Feel free to contact us if you have any questions about our site or our reviews, and we will be happy to help you with your purchasing decisions in any way we can.\nIf you know the name of the store you're looking for, use the search feature or select the appropriate letter from the \"Browse Store By Letter\" section. Use the \"Browse Stores by Category\" section if you're looking for new stores or simply want to shop for a specific product. Finally, click through to the store pages with the most traffic on \"TheBlackFriday.Deals\" by browsing the newly formed \"Most Popular Black Friday Retailers\" section.","domain":"optical_engineering"}
{"url":"http://www.3dimmersion.com/index.php?option=com_content&view=article&id=18&Itemid=21","date":"2013-05-25T18:19:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706082529/warc/CC-MAIN-20130516120802-00083-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8667833805084229,"token_count":159,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__150415483","lang":"en","text":"|The Fujifilm FinePix REAL 3D W1|\nIncredible 3D Photos and Video in a single camera. No need for 2 shots, this camera with it's DUAL LENSES, does it all in one \"click\".\nThe Fujifilm FinePix REAL 3D W1 is a groundbreaking image capture system. Comprising two Fujinon lenses and two CCDs integrated in the compact body of a standard point and shoot camera. With a built in RP (Real Photo) processor, it synchronizes dual streams of lens information to determine ideal focus, brightness, alignment, and tonality conditions so you can take images with an unprecedented quality in 2D or 3D. It truly will change the way you take and enjoy photos.","domain":"optical_engineering"}
{"url":"https://sigmadata.com.au/SoftwareProducts/inKofax/ImportsinKofax.aspx","date":"2023-12-03T13:54:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.23/warc/CC-MAIN-20231203125921-20231203155921-00258.warc.gz","language_score":0.7889280319213867,"token_count":119,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__6333175","lang":"en","text":"Automatically import your images into Kofax Capture\n- Import images from multiple directories, in multiple formats to create multiple batches.\n- Imports in Kofax features image resize for improved optical character recognition (OCR).\n- Includes polling and service mode, advanced error handling and automatic module processing\n- Imports in Kofax can help automate your manual imaging process.\n- Includes the ability to modify the DPI of images\n- Automatically assign images to different batch classes\n- Works with all versions of Kofax Capture\n- Powerful, flexible and easy to use","domain":"optical_engineering"}
{"url":"http://yoessayudsi.paperfolder.info/terahertz-spectroscopy-approach.html","date":"2018-11-21T01:29:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746926.93/warc/CC-MAIN-20181121011923-20181121033923-00290.warc.gz","language_score":0.8522794842720032,"token_count":1431,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__171948003","lang":"en","text":"2) quantum-optical spectroscopy that fully utilizes quantum fluctuations of light to select desired quantum processes among multiple excitation paths 3) terahertz spectroscopy with intense few-cycle pulses to realize high-harmonic generation, and other quantum processes for ultrafast electronics and photonics. Terahertz (thz) spectroscopy is a powerful technique for identification of dangerous materials like drugs and explosives, especially when hidden under optically opaque concealments. Terahertz (thz) vibrational spectroscopy is a promising tool for the non-destructive and potentially non-invasive characterization of historical objects, which can provide information on the materials used for their production as well as identify and monitor their chemical degradation.\nEver since terahertz time-domain spectroscopy was developed using a femtosecond laser, terahertz technology has been attractive because it has several advantages, such as non-invasiveness, non-destructiveness, and non-ionization measurement. An effective approach to quantitative analysis of ternary amino acids in foxtail millet substrate based on terahertz spectroscopy author links open overlay panel shao hua lu a bao qiong li a hong lin zhai a xin zhang b zhuo yong zhang b show more. Terahertz radiation - a novel approach for process understanding j axel zeitler department of chemical engineering university of cambridge [email protected] pat applications of terahertz spectroscopy quantitative terahertz spectroscopy detection of crystalline materials 44 46 48-005 000 005 010 015 020 025 a b s o r b a n c e (d e c a.\nA terahertz spectroscopy system comprises a tenahertz source for illuminating, in use, a sample with a pulse of radiation in the terahertz frequency range excitation means provides excitation energy in the form of an electromagnetic or acoustic wave during illumination of the sample by the terahertz source and a terahertz sensor receives energy from the illuminated sample. Abstract terahertz ray (t-ray) imaging applications have provided one of the most promising new powerful nondestructive evaluation techniques, and new application systems are under process development for area applications. One approach, megahertz (mhz) to terahertz (thz) dielectric spectroscopy, provides observations that are relevant to the global and subglobal motions on the picosecond. Process analytical technology (pat): quantification approaches in terahertz spectroscopy for pharmaceutical application with these studies, the advantage of using multivariate approach was demonstrated for process analytical technology (pat) application further, the feasibility of integrating thz spectroscopy and chemometrics for the. Abstract we present a new approach for accurate terahertz time-domain spectroscopy of thin films deposited on dielectric substrates our approach relies on the simultaneous measurement of film and substrate, allowing for 15 nm—precise determination of the thickness variation between the sample and reference.\nPhonon mode transformation across the orthohombic–tetragonal phase transition in a lead iodide perovskite ch 3 nh 3 pbi 3: a terahertz time-domain spectroscopy approach here, we study the temperature-dependent phonon modes of the organometallic lead iodide perovskite ch 3 nh 3 pbi 3 thin film across the terahertz (05–3 thz) and temperature. The approach is based on pulsed terahertz spectroscopy and imaging that has a spectral range from 006 to 3 terahertz with high resolution, up to 80 micrometers system specifications the availability of this terahertz system will lead to contribution to our understanding and utilization of terahertz radiation and imaging techniques in a wide. Above bandgap, optically excited time-resolved terahertz spectroscopy (trts) and hall van der pauw contact methods to directly compare these approaches and validate the use of the non-contact optical approach for future. Two-dimensional raman-terahertz (thz) spectroscopy is presented as a multidimensional spectroscopy directly in the far-ir regime the method is used to explore the dynamics of the collective intermolecular modes of liquid water at ambient temperatures that emerge from the hydrogen-bond networks water forming.\nTerahertz spectroscopy approach is also used for the chemical analysis fingerprinting approaches need little preceding information about which microbes are of great attention and the hereditary fingerprinting approaches allow credentials of dominant members of the microorganism community to the overall members. Image caption: an approach combining terahertz spectroscopy, x-ray diffraction, and solid-state density functional theory was utilized to accurately measure the elasticities of poly-l-proline helices by probing their spring-like vibrational motions. In order to estimate the latent demand for terahertz spectroscopy on a worldwide basis, i used a multi-stage approach before applying the approach, one needs a basic theory from which such estimates are created.\nTerahertz technology market by type (terahertz imaging, terahertz spectroscopy, and terahertz communication systems), technology (terahertz source and terahertz detector), application & region - analysis & forecast to 2022. Terahertz wave spectroscopy and imaging analysis platform the tas7500ts is a terahertz (thz) analysis system consisting of an optical fiber laser module and a data acquisition module, which are core parts of our terahertz spectroscopy system (tas7500sp. We first developed the terahertz-time-domain spectroscopy system as shown in figure 1, which is a powerful tool to characterize the far-field temporal waveform of pulsed terahertz radiation from device surfaces.\nWe propose a terahertz (far-infrared) circular dichroism-based life-detection technology that may provide a universal and unequivocal spectroscopic signature of living systems regardless of their genesis we argue that, irrespective of the specifics of their chemistry, all life forms will employ well-structured, chiral, stereochemically pure macromolecules (500 atoms) as the catalysts with. Terahertz time-domain spectroscopy (tds-thz) can breach the shortcomings of other medical diagnostics in rendering adequate images of affected tissues or suspected areas many researchers confirm that in a certain frequency range most tumors have lower absorption than normal tissues. Cmos based terahertz instrumentation for imaging and spectroscopy matters - kammerer, m published in: proceedings of the international conference on technology and instrumentation in particle physics (tipp 2014).","domain":"optical_engineering"}
{"url":"http://thedesignhome.com/2012/11/winkel-w127-desk-lamp-by-dirk-winkel-for-wastberg/","date":"2018-11-17T16:49:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743717.31/warc/CC-MAIN-20181117164722-20181117185817-00016.warc.gz","language_score":0.9355607628822327,"token_count":304,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__102631631","lang":"en","text":"Winkel w127 Desk Lamp by Dirk Winkel for Wästberg\nBerlin-based designer Dirk Winkel has created the Winkel w127 desk lamp for Swedish lighting company Wästberg. The slim desk lamp is manufactured of solid fiberglass reinforced bio-polyamide and it is recyclable. The mechanism used in the lamp body to adjust the height and direction of the light is based on micro gas springs which are widely used in the automobile and electronics industry and have lifespan of more than 50,000 compressions and give exceptionally good movement patterns.\nHere is a description from the producer, “The shade is adjustable for universal direction of the light. The light technology is based on a highly energy-efficient multichip LED solution. This consists of a cluster of diodes instead of several separate diodes. By using multichip LED, so called multi-shadows are avoided and a very even light pattern is achieved. The diode is cooled efficiently with an advanced cooling construction. The fixture is equipped with both a reflector and a diffuser lens, to give optimal light distribution and light quality. In addition, there is a glare protection system to minimize both direct and indirect glare. Winkel w127 is equipped with a seamless dimmer that is operated by an IR-switch; a built-in timer automatically turns the lamp off after five hours. Winkel w127 is available with base, clamp or pin.”\nImage Courtesy: Wästberg","domain":"optical_engineering"}
{"url":"https://europaproperty.com/panattoni-delivers-bts-project-for-corning-near-warsaw/","date":"2024-04-24T06:53:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819067.85/warc/CC-MAIN-20240424045636-20240424075636-00063.warc.gz","language_score":0.9346997141838074,"token_count":520,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__27579085","lang":"en","text":"Panattoni has delivered and is leasing a new, custom-fit facility to Corning Incorporated, the inventor and world’s leading manufacturer of low-loss optical fibre. The facility is located in Mszczonów, a city near Warsaw, and is more than 20,000 sqm. It was customized to meet Corning’s specific manufacturing requirements for low-loss optical fibre production and to meet the demand for high-speed connectivity in Europe and surrounding regions.\nPanattoni, with its dedicated BTS team, tailors solutions for clients and their technologies – even the most advanced ones like Corning. Corning invented low-loss optical fibre in 1970. Now enormous amounts of data, phone calls and video can move around the planet on optical fibre networks.\n“We worked with Panattoni to develop a facility that can house our state-of-the-art manufacturing process and meet our precise manufacturing specifications,” said Corning plant manager Mariusz Bielawski. “Our new facility enables us to continue delivering optical fibre to our European customers at a time when demand is surging for 5G, broadband, and the cloud.”\nThis new facility meets Corning’s strictly defined environmental, safety, and manufacturing optimization parameters, including a high-bay manufacturing area, HVAC, and enhanced process services.\nMarek Dobrzycki, Managing Director, Panattoni commented on the realisation of the high-tech factory for Corning: “This project is an exciting challenge for us. Working with Corning allows us to add service to a completely new industry to our portfolio. The production of state-of-the-art optical fibres requires a very specific working environment; however, tailor-made projects are our speciality, so we delivered a product that meets the customer’s expectations. The excellent location near Warsaw and key roads also create excellent conditions for further development.”\nThe location in the Warsaw region, only 40 minutes from the capital centre, facilitates access to qualified staff and scientists. The proximity of the A2 motorway leading to Berlin and the S8 route towards Prague in the Czech Republic is also significant. Expressways and the short distance to Chopin Airport make this an advantageous location for Corning Optical Communications.\nThe European Bank for Reconstruction and Development (EBRD) is supporting the investment by extending a €15 million loan to Feka Automotive (Feka), a Serbia-based producer of automotive lighting. Feka,...","domain":"optical_engineering"}
{"url":"https://pleine-lekker.com/lens_mounts2ce1524a-gocd.html","date":"2022-05-25T01:46:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662577757.82/warc/CC-MAIN-20220524233716-20220525023716-00213.warc.gz","language_score":0.8706357479095459,"token_count":5649,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__4781429","lang":"en","text":"Over 70% New & Buy It Now; This Is The New eBay. Find Great Deals Now Free 2-day Shipping On Millions of Items. No Membership Fee. Shop Now\nA microscope camera mount (also known as a lens mount) is an essential piece of hardware that interfaces between a scientific imaging camera and photo port of a microscope. This is an essential interface that secures the camera to the microscope. Without the correct camera mount, a camera cannot be used correctly with a microscope system The camera chip (CCD) will be of a certain dimension and will require the appropriate magnification within the c-mount adapter (sometimes referred to as a relay lens.) A good rule of thumb is the size the CCD as a decimal is what is required in magnification to fill the viewfield. For example, a 2/3 CCD (0.67) requires a 0.7x c-mount HAYEAR 4K UHD HDMI Microscope Camera Industry Digital USB C-Mount TF Card Video Record 100-240 Plug High Speed for Precision Soldering Repair Tiny Objects Analyze. 3.0 out of 5 stars. 1. $219.00 The 2CM1 and 2CM2 mounts place our scientific cameras' sensors at a distance of 4.05 to 4.17 (102.9 mm to 106.0 mm) from the base of the mount, which may be outside the parfocal distance of some microscopes, including inverted microscopes from Nikon and Olympus. For these microscopes, our two-camera mounts can be used if parfocality with the. Camera Mounts There are literally hundreds of potential combinations with many different camera and microscope types. The most fundamental information you will need when deciding which c-mount adapter you need are as follows\nCamera Mounts (C-mounts) Request Information. The connection between your microscope and camera. There are literally hundreds of potential combinations of camera and microscope types. The most fundamental information when deciding which c-mount adapter needed are as follows Camera Mount. C-Mount is a standardized camera lens mount that measures 1 in diameter and 32 threads per inch. Ocular Mounts enable a microscope camera to be attached to a microscope ocular via an adapter tube. Typically, used on a trinocular port, an ocular mount can also work on monocular and binocular microscopes either by removing an. . Please check our online Adapter Matching Guide to obtain the catalog numbers for the adapter and T-mount that will work with your particular camera and microscope model\nA c-mount adapter for your microscope without a lens in it, is merely a connector for your camera. What you'll get is a direct image on the monitor screen, which is more magnification than what is seen in the eyepieces due to the inherent magnification with image sensors and microscopes. While this arrangement is fine for some users, others require an image on the monitor that looks more. C-Mount Microscope Cameras. 28 products. Send images to your computer with microscope cameras from Grainger. Once the images are stored on the computer they allow you to share research and clinical findings outside of a laboratory setting. You can use microscope cameras for real time imaging on a computer or an LCD display C-Mount. We proudly sell C-mount camera adapters made by Diagnostic and Optem, as well as brand specific C-mounts. Normally we recommend that the C-mount magnification match the camera's sensor size, so for instance a 1/2″ sensor would best match a 0.5x C-mount. Sort by microscope brand below, or contact us if you need help choosing the. A c-mount adapter is the microscope adapter that fits on a microscope camera trinocular port. If you have a monocular or binocular microscope, you still have options to connect a camera. The easiest way to connect a microscope digital camera in this situation is directly over your eyepiece C-Mount: perfect for connecting to microscopes and other scientific imaging equipment. 4K video resolution. 12MP RAW stills. Frame rates up to 240fps. Portable & self contained. HDMI video out up to 3840 x 2160 (H8PRO with Media Mod) Integrated touch screen display. Voice commands. Interchangeable filters in camera allow for custom wavelength.\nCamera Adapters. Digital Camera Adapters generally fall into two categories: 1. C-mounts for Dedicated Microscopy Cameras. 2. T-mounts for Digital SLR Cameras. Our online shop shows ALL of these adapters, but click the links below to view one type or the other . Microscope digital cameras have a sensor that creates a rectangular shaped imaged. When connecting a microscope camera to the microscope, a c-mount adapter is used. C-Mount adapters are available with different magnifications (1x, 0.65x, 0.5x, 0.35x) and pairing these de-magnifying adapters with camera image sensor sizes (1.\nHow to Mount a DSLR Camera to a Microscope. The traditional way to mount a DSLR camera is using a T-mount or C-mount. However, getting the right T-mount or C-mount can be daunting because there are specific mounts required for different combinations of microscope brands Swift 5.0 Megapixel Digital Camera for Microscopes, Eyepiece Mount, USB 2.0 Connection, Color Photography and Video, Windows and Mac Compatible 3.8 out of 5 stars 60 $109.99 $ 109 . 9\n20MP USB3.0 BSI C-mount Microscope Camera with Calibration Slide and 1X 23mm Compensating Lens SKU: MU2003-BI-RU1. Regular Price: $1,599.99 . Special Price $939.99 . Add to Cart Details | Add to Compare; 14MP USB 3.0 High-performance Color CMOS C-Mount Microscope Camera with Reduction Len C-mount adapters are microscope specific so one end is a standard c-mount thread and the other depends on the make and model of the microscope. C-mount adapters are supplied with or without optics. The purpose of the optics is to match the c-mount adapter with the size of the sensor within the digital camera in order to maximize the field of view AmScope AD-C20-03 0.3X C-mount Lens Adapter for Video Camera Microscopes. $39.99. Was: $127.99. Free shipping\nWide Selection of Top Quality Products from Authorized Dealer. Free Shipping Over $49.. Get Great Gear for Less - Reward Yourself By Earning OpticsPlanet Bucks The camera chip (CCD) will be of a certain dimension and will require the appropriate magnification within the c-mount adapter which is sometimes referred to as a relay lens. A good rule of thumb is that whichever size the CCD is as a decimal is what it requires in magnification to fill the viewfield. For example a 2/3 CCD (0.67) requires. Adapters, Camera to Microscope: Meiji Techno Digital Camera Adapters: Nearly every Meiji microscope series has a trinocular model designed for photo-microscopy. The adapters below will allow your consumer grade digital camera to attach to either a male C Type mount, a 23.2mm eyetube, a 30 or 30.5mm eyetube or any of our trinocular microscope. A C-mount adapter is needed to connect a microscope camera or to the CAMERA PORT of a Motic Microscope. To ensure the image is best captured and projected from each microscope, we have unique C-mount adapters for different camera-microscope combinations. Choosing the correct Moticam adapter can be as easy as 1-2-3\nCoupler or camera adapter, is also called photo eyepiece, CCTV adapter, CCD adapter, camera adapter, digital camera adapter, and camera adapter etc. Coupler is an optical imaging lens that uses mechanical adapter device to connect the camera to the microscope, and project the image onto the camera's target through the adapter. Coupler/C-mount adapters have different magnifications to capture. 21 MP-C-mount USB3.0-Fluorescence Microscope Camera. Overview. APA3ISP21MC1 adopt SONY Exmor CMOS sensor as the image-picking device and USB3.0 is used as the transfer interface. E3ISPM hardware resolutions range from 1.5M to 21M and come with the integrated CNC aluminum alloy compact housing The Leica DFC295 is a digital microscope color camera with a c-mount interface. It offers a standard resolution of 2048x1536 pixels (3 Megapixels) and produces high-quality color images for any industry or life science application.Due to the fast live image speed of up to 25 frames per second, you can easily setup or focus your sample by just looking at your computer screen FOR SALE IS A USED DIAGNOSTIC INSTRUMENTS.50X MICROSCOPE/CAMERA MOUNT ADAPTER.THE PART NUMBER IS D50NLC.THE THREAD SIZE IS 38MM.ALL FUNCTIONS ARE IN PERFECT WORKING ORDER. IF YOU HAVE ANY QUESTIONS AT ALL PLEASE FEEL FREE TO CALL ME 1-614-580-0951. You will not be disappointed.My feedback speaks for itself.If you have any questions please email. 21 MP-C-mount USB3.0-Fluorescence Microscope Camera. Overview. APA3ISP32MC1 adopt SONY Exmor CMOS sensor as the image-picking device and USB3.0 is used as the transfer interface. E3ISPM hardware resolutions range from 1.5M to 21M and come with the integrated CNC aluminum alloy compact housing\nMicroscope Camera C-Mount Focus Adapter. The upper port is standard C interface (CS interface) (external thread, connected to microscope camera or industrial camera), and the lower port is 38mm in diameter (the bayonet connected to microscope). Divided into 1X, 0.5X, 0.35X three specifications, the price is different Thorlabs offers a wide variety of adapters, including those for threaded studs, mounts, lens tubes, RMS threads, camera mount threads, M25 threads, SM-threads, microscopes, fiber connectors, collimators, aspheric lenses, 35 mm bayonet mounts, cage systems, mounting posts, pedestal bases, and construction rails Compatible with stereo microscopes and compound microscopes, whether your needs are biological, industrial, gemological, or any other type of microscopy. The standard C-mount connection allows the camera to be used with any number of optional lenses and C-mount photo ports. For 23mm drop-in photo-ports, a 0.5X reduction lens is recommended 534 Attaching the Nikon DS-Fi3 microscope C-mount camera to different microscopes using the LM adapter solutions. Nikon's DS-Fi3 entry-level camera is a high-definition C-mount camera with a 5.9 megapixel sensor.It is used for microscopic image acquisition in various scientific fields and industrial sectors\nFast 5 Megapixel Microscope Camera for Routine and Research Labs. Acquire up to 36 frames per second at full resolution. Cover more of your area of interest with its 2/3 sensor format. Learn more. Mouse tissue histology slides - acquired with Axiocam 512 color Microscope cameras allow you to capture everything you view under the microscope in live time, with perfect contrast and super high resolution. Mount this 18 megapixel Swiftcam onto your microscope's trinocular port or regular eyetube to record full-color pictures and videos with your computer or laptop\nLW Scientific. The MiniVID WiFi 5MP camera is an incredible addition to our camera line. It can be mounted to nearly any brand or type of microscope with trinocular C-mount or inserted into one eyetube of a binocular head using the optional eyetube adapter. Connect to any iOS device (iPhone/iPad) or Android The integrated video solutions for surgical microscopes are the most convenient way to generate images for information, documentation, teaching and presentation purposes. Due to the built-in camera systems with factory aligned optics the video solution works right away from the box 8.5. 6. AmScope M158C-SP14-E 40X-1000X Biology Science Metal Glass Student Microscope with USB Digital Camera. By amscope. 8.3. View Product. 8.3. 7. HAYEAR 14MP HDMI 1080P HD USB Digital Industry. Introduction. Cream and grey versions of the Olympus OM Photomicro Adapter L. The OM-Mount Photomicro Adapter L was designed to attach an Olympus OM or SC 35 Type 12 camera body to an Olympus compound microscope or stereo microscope, either directly or via one or more additional adapters.Any OM body can be attached, but for photomicrography the 1-12 focusing screen is almost essential, and so.\nThis is a 300x Microscope Lens which is suitable to use with the Raspberry Pi High Quality Camera. It has a high level of zoom and can be used for macroscopic applications. It has an adjustment magnification ring whoch supports magnification up to 300x. The lens can be easily screwed into the Raspberry Pi High Quality Camera. Also, it comes with front and back covers for protection when it's. This adapter allows you to connect a c-mount microscope digital camera over your microscope eyepiece lens and thread a c-mount camera directly onto the adapter. The c-mount adapter has two options for the lens built into it: Lens for 1/3 camera chip. Lens for 1/2 camera chip. There is a choice for the size of the adapter ring that goes over. The Celestron LCD Digital Microscope II a powerful option that not only comes with a 3.5-inch touchscreen LCD and a five megapixel digital camera with which to record findings, but also a magnifying power of up to 400x that can be magnified to the equivalent of 1600x if using the 4x digital zoom ALPHA1080 Series HDMI+USB+SD Card All in 1 C-mount CMOS Camera. ALPHA1080 series is a multiple interfaces (HDMI+USB2.0+SD card) CMOS camera and it adopts ultra-high performance Sony CMOS sensor as the image-picking device. HDMI+USB2.0 are used as the data transfer interface to HDMI display or computer. For HDMI camera mode, The XCamView will be.\nThe problems encountered in the task of mounting a Micro 4/3 camera on a Zeiss Photomicroscope are typical of those found when adapting small-format digital cameras to legacy microscopes. A full-frame digital body may be easier to use in this context , given that its sensor size approximately equals a 35 mm film frame, and therefore legacy. The easyiest way is to use a microscope which either offers a second, independant optical path dedicated to mounting a camera or one which has an adjustable optical path which can be switched from the eyepiece to a camera mount. In both cases, the microscope typically has a C- or T-mount for that optional camera\nFrom Lomo®, this adapter attaches 1/3 and 1/2 C-mount video and digital cameras to their HT-30 Trinocular microscope. Barrel is 3-3/4 long x 1-3/16 dia with a 1-1/2 dia top portion with a non-magnifying flat lens inside, and a threaded bottom end. Find other uses for this device and win valuable prizes! OK, we lied about the valuable prizes, but tell us what you did with this and we. The C-Mount Video Microscope Unit connects an M26 x 0.706 thread Infinity Corrected Objective to a C-mount camera, for simple configuration of a high magnification imaging system. The design connects to the standard M26 x 0.706 threading of many infinity corrected objectives, and maintains the 200mm focal length which gives the unit 1X. 1x. 1280 × 1024 pixels. USB 2.0. AM4023CT. The AM4023CT Dino-Eye USB C-Mount camera allows you to attach a digital camera onto an optical device so you can clearly observe in real-time what your device is viewing on a computer or projected for an audience to see. Learn More. $329. Add to Compare. 1x C-mount (1 inch x 32 tpi) Applications: Video lenses, CCD cameras for microscopes. Adapters: T-mount, camera specific. M29.5 x 0.5. Applications: Schneider M-Componon lenses Adapters: M39, M42. Schneider 0 (M32.5 x 0.5) Applications: Some enlarging lenses Adapters: M39, M42. Leica screw mount (M39 x 1 iEQ TMmounts, the TSmartEQ M mount is the ulti-mate Grab N' Go German equatorial GOTO mount. It is ideal for visual observation and wide field astrophotography. The compact design and light weight make travelling with the mount easy. Plus, it will fit almost anyone's budget. The SmartEQ TM is a fully computerized mount with a database of.\nA C-mount is a type of lens mount found on 16 mm movie cameras and microscope phototubes. C-mount lenses provide a male thread which mates with a female thread on the camera. With the addition of special adapters these cameras and associated eyepieces fit into wider stereo microscope ocular tubes. C-mount cameras may come with eyepieces (1X, 0. The item Carl ZEISS f 107 T Camera Adapter C-mount for OPMI Surgical Microscope is in sale since Wednesday, April 21, 2021. This item is in the category Équipements professionnels\\Équipements médicaux, lab\\Accessoires appareils médicaux\\Microscopes\\ pièces et accessoires\\Caméras microscope, adapt As low as£298.80 £249.00. • HD1080p 60fps (2.0MP Sensor) • HDMI direct to monitor, no PC required. • C-Mount interface to any microscope. • Measure & save images to SD Card. • Supplied with or without 11.6 HD Monitor. Addded to quote View. Add to Basket The microscope camera DFK MKU130-10x22 is, to our knowledge, the only camera currently on the market that can be mounted on nearly all microscopes and that can capture the complete field of view, as seen by the observer, without additional optical adapters. The motivation to build this camera came from an oft-posed support question: Why does my C-mount camera only capture a small portion o\nThe Microscope Video Camera Adapter VZ attach to a standard beam splitter port and a CCD -mount microscope HD Camera. This adapter is designed for ANTERIOR surgery. Contact us for a better option for posterior surgery. Designed for 1/3″ & C-mount CCD Cameras High Definition (1,920 x 1,080i) Fine Focus Control Iris adjustin The camera mount attaches to the Leica headrest mounting for the Acrobat™ Versa stand for your Leica A60 microscope (microscope and stand are available separately). It features a RAM® ball mount component that provides a wide range of positioning options. The mount supports any camera (still or video) that features tripod-mounting capability. Meyer Instruments, Inc. is an independent microscope dealer specializing in digital imaging components and systems for microscopy. Since 1986 we have provided microscopes, stereomicroscopes, digital cameras and image analysis software for all bio-medical and industrial applications The distortion is also as a result of the camera and not the eyepiece and for most part, is a very minor issue. Overall, the Gosky Universal Smartphone Adapter Mount will allow users to have a great time shooting quality videos and capturing images either using microscopes or telescopes, which can even be printed and saved. A handy and easy to.\nAdapter Costs. Connector mounts for digital camera eyepiece adapters can be purchased for less than $100 however these adapters do not provide image rerouting, image manipulation or contain camera or image storage options. C-mount eyepiece adapters containing USB digital cameras can be purchased for under $300 while digital camera conversion. Due to the interchangeable camera mounting rings and flexible mounting solutions your VariMag II system will be usable for many years to come, even if you switch camera brands and microscopes. We also offer an upgrade path to our previous customers so you can enjoy all of the latest features at a very nominal cost over the original purchase. C-Mount to Dia.31.75mm Eyepiece Tube (Please choose 1 of them for your telescope) 108011/FTA037 108012/FTA050 108013/FTA075. Note: For H and I optional items, please specify your camera type(C-mount, microscope camera or telescope camera), Jingtong engineer will help you to determine the right microscope or telescope camera adapter for your. H5PRO - Modified Hero5 Black. By converting the world's leading action camera to C-Mount we've created an immensely powerful tool for microscope imaging and countless more applications. 4K recording, 12MP RAW stills, 4K HDMI out, interchangeable filters, frame rates up to 240fps and much, much more\nSelect your Camera Body Mount in Drop-Down Menu. Our True-2™ UltraWide Adapter is a true 2 prime focus adapter that takes you directly from the bayonet mount to a 2 barrel with as few wasted photons as possible, adding as much as 10mm additonal clear aperture over legacy adapters! $79.00. More Hitech Instruments is a full service microscope and imaging company, serving the scientific community as a leading supplier of microscopes, digital imaging systems, image analysis software and automation equipment since 1976. This Zeiss 1.0x camera adapter will connect your c-mount camera to the phototube of compatible microscope systems How to make your own DSLR mount for use with a trinocular microscope. And all it needs is a cheap set of extension tubes, some PVC pipes, and a couple of optics. In the video, PVC pipes and jewellers loupes are combined to make the rig. The extension tube set is then used to create a mount that fits onto your DSLR An accessory ring available in mount which converts the lens mount of your DSLR camera to a T-Mount;you can use M42 Lenses on your camera Having the right equipment to shoot art gallery images of the slides starts with the right microscope;camera and camera adapter and ends her\nShenzhen Hayear Electronic Company is a new high-tech enterprise with industrial camera, digital microscope and industrial equipment, we have our own group to develop, design, manufacture and sale. Our start point is customer usage experience and have produced a series of advanced level of equipment and full set of production with Hayear style, having won a high reputation from numerous. The software included in the package is for Windows system, supporting image and video capture and instant save. For Mac user, use built-in PhotoBooth or FaceTime software. Featuring built-in C-mount compatibility and three different lens adapters, this camera can be attached to any microscope with a C-mount or other photo port Eyepiece cameras can be inserted into the eyepiece tube of your microscope. Direct to Display Cameras This class of camera typically is a c-mount type and outputs the image direct to a computer monitor When the microscope is coupled to a CCD digital still or video camera (TV/Photometer mode; (4)), 100 percent of the light is directed to a port containing a C-mount adapter, allowing video capture without light loss for image analysis, quantitative analysis, and photomicrography of dark or fluorescence specimens Three camera options covering two computing platforms Microscope Camera 2880 × 2048 Microscope Camera Monochrome Microscope Camera Frame rate 15 fps (2880 × 2048), 30 fps (1440 × 1024) Max recordable pixels 5.9 megapixel Color High-resolution 16.25 megapixel Color High-resolution 16.25 megapixel Mono-Cooled chrome Mount C-mount 4908 × 326\nA microscope c-mount adapter is used to connect a microscope camera to the microscope trinocular port. A c-mount adapter has a standard 1 (or 25mm) diameter male thread. This thread matches with the female thread on the camera. C-mount adapters are microscope specific in that the lenses are made to match up with your specific microscope Scientific Research Grade Camera, CMOS Microscope Camera, Aptina CMOS Sensor manufacturer / supplier in China, offering Bestscope Bwc-720 C-Mount WiFi CMOS Microscope Camera, Bestscope BS-2026bd1 HD Digital Binocular Biological Microscope with 2MP WiFi Camera Video Microscope, Bestscope BS-2026b Binocular Biological Microscope with 40X-1000X LED Illumination Cheap Price and so on To use the Pimoroni Microscope Lens, you'll need any Raspberry Pi model. Even a Raspberry Pi Zero W ($10) would be ideal for this project. The HQ Camera is $50, and the lens and stand pack is. A C mount is a type of lens mount commonly found on 16 mm movie cameras, closed-circuit television cameras, machine vision cameras and microscope phototubes.. C-mount lenses provide a male thread, which mates with a female thread on the camera. The thread is nominally 1 inch (25.4 mm) in diameter, with 32 threads per inch (0.794 mm pitch), designated as 1-32 UN 2A in the ANSI B1.1 standard.\nOnly US$79.99, buy best 5mp usb c-mount microscope camera 0.5x eyepiece lens adapter set 30mm 30.5mm sale online store at wholesale price Cheap Microscopes, Buy Quality Tools Directly from China Suppliers:Adjustable Magnification 100X 180X 200X 300X 600X Zoom C Mount Lens For HDMI compatible VGA USB Industry Video Microscope Camera Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return Digital Microscope Software for Windows - Version 2.0: Digital Microscope Suite: Driver Update for Imaging Source USB 2.0 Cameras: FlipView Software - Windows Menu: FlipView Software - Windows Setup: Flipview Software for Mac Devices: Hand Control Firmware Updates: Hot Pixel Removal Tool: iCap 2.4 Camera Control Software: Italian To Spanish Fi Welcome to Tasco where seeing is believing. Here you can find everything from our popular telescopes, riflescopes, binoculars, spotting scopes, red dot sights, and golf laser rangefinders. No matter your outdoor passion, Tasco strives to balance quality and price so anyone can afford to see the beautiful moments in life You can actually buy a zoom microscope lens for a raspberry c-mount camera. £22.50 in the UK, I'd rather have a zoom microscope lens than 3D for SMT work. Report comment Repl","domain":"optical_engineering"}
{"url":"https://topfiberopticsystems.design.blog/2020/01/07/best-fiber-optic-systems/","date":"2021-04-15T17:43:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038087714.38/warc/CC-MAIN-20210415160727-20210415190727-00597.warc.gz","language_score":0.9458759427070618,"token_count":493,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__256006680","lang":"en","text":"A fiber-optic system consists of cables that are used to transmit information from one place to another destination, therefore, assisting communication. A fiber optic system is a form of guided media. Choosing the best fiber optic systems may be quite challenging especially when one does not have skills in information technology. The following are things to note when selecting a fiber optic transport system.\nFirst, it is necessary to check the capacity of the system. This is by comparing the bandwidth. This is the maximum rate of data transfer. Best fiber optic systems have high bandwidth and this is to allow a lot of information to be transferred. Another consideration to make when selecting a fiber optic system is examining whether the cables are shielded. Shielded cables are vital because they resist too much interference which may obstruct data transfer.\nIt is essential for one to consult an information technology specialist to be guided on the best fiber optic system to set up. These have vast information on the right equipment to be purchased depending on the existing technology. Another idea to get the best fiber optic system is the ease of installation. It is important to choose the fiber optic system that is easy to set up. Some systems may involve complicate configuration which may pose difficulties to an individual. Best fiber optic systems are therefore simple to set up and do not require too many activities such as configuring. Get the best 2-wire 4-wire converter by clicking here.\nAnother thing to have in mind when selecting a fiber optic system is security. Fiber optic systems like other communication systems may suffer insecurity issues such as hacking and these leads to loss of information. One, therefore, needs to get the system that is secured from these issues for the safety of data being transferred. It is essential to check whether the fiber optic system requires encoding and decoding of messages. Messages are sent as packages and may require to be encoded before they are sent and decoded when received. This may involve some technical skills which not many people have and therefore the need to get the system that does not involve these processes.\nThe best fiber optic system is compatible with other communication systems and devices. One needs to get the system that is easy to like with devices and other communication systems and this is for easy transfer of data. It should not be dependent on particular systems or platforms and therefore increasing flexibility and reliability. For more information, click on this link: https://www.britannica.com/science/fiber-optics.","domain":"optical_engineering"}
{"url":"https://securityjournalamericas.com/software-teledyne-flir-ai-the-edge/","date":"2023-11-30T08:52:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00338.warc.gz","language_score":0.8979419469833374,"token_count":329,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__159684600","lang":"en","text":"Teledyne FLIR, part of Teledyne Technologies Incorporated, has announced version 1.0 of its highly optimized image signal processing (ISP) software development kit (SDK) for embedded systems.\nAccording to the company, its Prism ISP is designed to maximize performance in thermal and multispectral applications.\nCreated to run on low-power GPUs from Qualcomm and NVIDIA, Prism ISP includes image-enhancing functionality for:\nTeledyne FLIR says that the Prism ISP libraries enable integrators in the defense, commercial and industrial markets to dramatically enhance imaging quality as part of AI data capture at the edge, improving performance, lowering development costs and shortening time to market.\nIn addition to Prism ISP running at the edge, Teledyne FLIR says that it has also enhanced Prism AI.\nThis perception software enables classification, object detection and object tracking in thermal and visible light spectrums.\nThe company says that Prism AI now provides additional high-performance models trained on the world’s largest application-specific thermal image datasets, including ground intelligence, surveillance and reconnaissance (ISR), air-to-ground and counter-drone applications.\n“Prism ISP is critical to thermal-based AI system development, offering an unprecedented performance while reducing development costs,” said Dan Walker, Vice President, Product Management, Teledyne FLIR.\n“Within our end-to-end, computational imaging ecosystem featuring Prism AI, Teledyne FLIR can now support a wider array of projects and custom development that utilize low-power, embedded processors at the edge.”","domain":"optical_engineering"}
{"url":"http://garrettezlv379.blog5.net/12948049/two-important-items-individuals-do-definitely-not-recognize-referring-to-lasik-eye-surgical-treatment","date":"2019-07-22T06:41:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527531.84/warc/CC-MAIN-20190722051628-20190722073628-00459.warc.gz","language_score":0.9604150652885437,"token_count":856,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__147217315","lang":"en","text":"The eye can be analyzed with relative ease as to both its function and its structure. A functional evaluation consists of the ability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye may be evaluated in several ways. The patient may be asked to recognize illuminated letter or things of differing sizes on what is referred to as the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye may be made in several ways. Tension within the eyeball is determined by a \"tonometer.\" In particular diseases, specifically in glaucoma, the stress in the eyeball is increased markedly.\nIt should be well remembered that a patient with an eye problem may have other problems. Typically other physical conditions are main and impact the eye as a repercussion. The look of the eye can notify the client and the doctor to problems in some disruptions of other parts of the body even before other symptoms provide themselves.\nOne's dependence on sight is emphasized when one deals with a possible or short-lived permanent loss of this important sense. Hence, when restorative steps are sought, specific forms of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some individuals are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to motivate reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this kind of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea using a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea right here is finally reformed, permitting better the eye to direct additional hints more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that individuals should know. Probably, the primary factor why this type of eye surgery has ended up being well accepted is because most of its cases had actually succeeded.\nHowever, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgical treatment includes the operation of the retina, which is among the most sensitive parts of the eye, the majority of people say that the operation can be really risky.\nSimply puts, a simple error could almost trigger an individual's lifetime loss of sight. It is essential to consider many aspects prior to deciding whether LASIK eye surgery is the best corrective step one has to undergo.\n2. It is not a best procedure\nLASIK eye surgical treatment may fix your vision however it does not always suggest that it can provide you a twenty-twenty. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not always suggest they have ideal vision.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgical treatment the method many people see it\nOn the other hand, the evaluation of the structural part of the eye might be made in several ways. It needs to be well remembered that a client with an eye issue may have other problems. Frequently other physical conditions are main and impact the eye as a repercussion. The look of the eye can signal the physician and the client to difficulties in some disruptions of other parts of the body even before other symptoms present themselves.\nLike its concrete equivalent, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://fishgame.com/news/?p=5683","date":"2013-12-12T00:27:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164120234/warc/CC-MAIN-20131204133520-00057-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.939877450466156,"token_count":180,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__52132857","lang":"en","text":"The U.S. military has been after self-guided bullets for years. Now, government researchers have finally made it happen: a bullet that can navigate itself a full mile before successfully nailing its target.\nThe breakthrough comes courtesy of engineers at Sandia National Laboratory, owned by Lockheed Martin. They’ve successfully tested a prototype of the bullet at distances up to 2,000 meters — more than a mile.\nEach self-guided bullet is around 4 inches in length. At the tip is an optical sensor, that can detect a laser beam shone on a far-off target. Actuators inside the bullet get intel from the bullet’s sensor, and then “steer tiny fins that guide the bullet to the target.” The bullet can self-correct its navigational path 30 times a second, all while flying more than twice the speed of sound.","domain":"optical_engineering"}
{"url":"http://learn.genetics.utah.edu/content/variation/eye/","date":"2013-05-25T15:01:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705956734/warc/CC-MAIN-20130516120556-00076-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9524726867675781,"token_count":752,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__162813731","lang":"en","text":"The overwhelming majority of life on our planet depends on the sun for energy. Because life is so tightly linked to the sun, it is no surprise that many organisms (excluding those that live in total darkness) have evolved the ability to detect and respond to light. Plants turn their leaves toward the sun. Single-celled algae, protists, and other microbes swim toward or away from light. But it is the animals, with our image-forming eyes, that have taken light detection to the next level.\n96% of animal species have eyes. The first animal eyes did little but detect light—they helped to establish day/night cycles and coordinate behavior—but more-complex eyes soon evolved. A predator who can see its prey from a distance, or a prey animal that can see the shadow of a predator approaching, has a clear survival advantage over those who can't. Even a slight improvement in image quality provides a significant survival advantage, allowing for the step-by-step evolution of increasingly complex eyes.\nAt its simplest, the eye incorporates three functions:\n- Light detection\n- Shading, in the form of dark pigment, for sensing the direction light is coming from\n- Connection to motor structures, for movement in response to light\nThe most-basic structure that is widely accepted as an eye has just two cells: a photoreceptor that detects light, and a pigment cell that provides shading. The photoreceptor connects to ciliated cells, which engage to move the animal in response to light. The marine ragworm embryo (right) has a two-celled eye.\nAn eye with more photoreceptors has more power: it can detect variations in light intensity across its surface. A cup-shaped eye can better sense both the direction light is coming from and the movement of nearby objects. These improvements require only minor changes to the basic eye.\nAs animals evolved more-complex bodies and behaviors, the eye too became more complex. Eyes evolved connections to muscle cells rather than cells that moved by waving cilia. Neurons evolved that could process signals and coordinate behavior.\nLater improvements included structures for better optics, such as lenses or mirrors that gather and focus light onto photoreceptors. Some eyes became spherical and evolved pupils that opened and closed to let in just the right amount of light for forming clear images. Muscles evolved to fine-tune focusing and to point the eye in different directions. Photoreceptors increased in number, providing more-detailed images (like adding pixels to a photograph).\nEyes most likely evolved from simple to complex through a gradual series of tiny steps. Piecing together the sequence of eye evolution is challenging, and we don't know the sequence of steps that led to every modern eye. But we do know that modern animal eyes come in many varieties, spanning a continuum from the simplest to the most complex. This demonstrates that all types of eyes are useful, and that eyes of intermediate complexity could also have formed as steps in the evolution of complex eyes.\nResearchers at Lund University wanted to find out how long it might take for a complex eye to evolve. Starting with a flat, light-sensitive patch, they gradually made over 1,800 tiny improvements—forming a cup, constricting the opening, adding a lens—until they had a complex, image-forming eye. It is important to note that every tiny change these researchers made measurably improved image quality. The researchers concluded that these steps could have taken place in about 360,000 generations, or just a few hundred thousand years. 550 million years have passed since the formation of the oldest fossil eyes, enough time for complex eyes to have evolved more than 1,500 times.","domain":"optical_engineering"}
{"url":"https://omu.edu.ly/journals/index.php/mjsc/article/view/157","date":"2023-09-28T14:10:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510412.43/warc/CC-MAIN-20230928130936-20230928160936-00533.warc.gz","language_score":0.7965008020401001,"token_count":1039,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__90751622","lang":"en","text":"Measurement of 3D Displacement Fields and Deformation Using 3D Laser Scanner and CCD Camera (0-10 mm)\nKeywords:camera calibration, measuring 3-D displacement fields, 3D laser sensor calibration, non- contacting 3-D metrology\nMany applications dealing with the mechanical behavior of materials require the measurement of displacement fields or deformation fields. For this type of measurement, optical methods have become unavoidable due to their non-intrusive approach, their high spatial resolution, their high sensitivity, the large size of their examinated field, and the increasing power of the computers that now allow the processing of huge quantities of data. In this context we have developed a system for measuring 3-D displacement fields using CCD (camera charge digital) and 3D laser scanner .This method allows the measure of the 3-D displacement field using at least two pairs of stereoscopic images of an object corresponding to two states of its deformation (or the processing of a sequence of pairs of images acquired during the deformation). The main topics developed in this study are: the calibration of a camera and a 3D laser scanner, and measuring 3D displacement fields from coupling of camera and 3D laser sensor. The potential application of our method is the characterization of structures, for example, to provide assistance in the development of tools for stamping.\nCloud, G., (1998) Optical methods of engineering analysis, Cambridge University Press.\nFaugeras, O.D. and Toscani, G. (1986) \"The calibration problem for stereo\". In Proc. Computer Vision and Pattern Recognition, Miami Beach, Florida, USA, 15-20.\nFaugeras, O. D., Toscani, G.,(1987) Camera calibration for 3-D computer vision, Proceedings of IEEE International Workshop on Machine Vision years, Machine Intelligence, Tokyo, Japan.\nFrey, P.J. and George, P.L. (1999) Meshes: application to finite elements, Hermes Science Publication.\nGarcia, D. (2001) Measuring shape and displacement fields dimensional stereo-image correlation, Ph.D. Thesis, Institut National Polytechnique de Toulouse, France.\nGarcia, D., Orteu, J.J. and Devy, M. (2000) Accurate Calibration of a Stereovision Sensor: Comparison of Different Approaches, 5th Visoin Workshop on Modeling, and Visualizaiton, Saarbrücken, Germany.\nGarcia, D., Orteu, J.J. and Devy, M. (2001) Precise calibration of a CCD camera or a stereo-scopic vision sensor, LAAS Report No. 01332 Photpmécanique Symposium, Poitiers, France.\nHoraud, R. and Monga, O., (1995) Computer Vision: basic tools, 2nd edition.\nKinsey, L.C. (1993) Topology of Surfaces, Springer-Verlag. DOI: https://doi.org/10.1007/978-1-4612-0899-0\nSutton, M.A., Wolters, W.J., Peters, W.H., Ranson, W.F. and McNeill, S.R. (1983) Determination of displacements using digital correlation An improved method. Image and Vision Computing, 1, (3), 133-139. DOI: https://doi.org/10.1016/0262-8856(83)90064-1\nSutton, M.A. (1988) The effects of subpixel picture restoration on digital correlation error estimates, 27, (3), 173-175. DOI: https://doi.org/10.1117/12.7976778\nSutton, M.A., Cheng, M., Peters, W.H. Chao, Y.J. and McNeill, S.R., (1986) Application of optimized digital correlation method year to planar deformation analysis. Image and Vision Computing, 4, (3), 143-150. DOI: https://doi.org/10.1016/0262-8856(86)90057-0\nHow to Cite\nThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.\nCopyright of the articles Published by Almukhtar Journal of Science (MJSc) is retained by the author(s), who grant MJSc a license to publish the article. Authors also grant any third party the right to use the article freely as long as its integrity is maintained and its original authors and cite MJSc as original publisher. Also they accept the article remains published by MJSc website (except in occasion of a retraction of the article).","domain":"optical_engineering"}
{"url":"http://www.opencascade.org/about/news/issue58/","date":"2015-09-01T01:58:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-35/segments/1440644068749.35/warc/CC-MAIN-20150827025428-00267-ip-10-171-96-226.ec2.internal.warc.gz","language_score":0.8906682729721069,"token_count":399,"dump":"CC-MAIN-2015-35","global_id":"webtext-fineweb__CC-MAIN-2015-35__0__77235430","lang":"en","text":"|In the January 2002 issue of the French magazine \"Pixel\", journalist Mireille Boris describes how Optis of Toulon, France, developed its Speos software, which is based on the company's CSG proprietary kernel and the surface design components of Open CASCA|\n|Created using the surface design components of Open CASCADE, Speos is one of the market's most complete applications for optical photometry and analysis. It simulates the photometric and colorimetric characteristics of light on all sizes of manufactured products, notably on electronic parts for the automotive and aeronautics industries. Examples include dashboard lighting, headlights, cellular telephone screens, optical fibers and airport runway lighting. Speos analyzes, for example, how light is dispersed, where reflects occur or which areas will receive the least light. |\nUsing model data from the main mechanical CAD applications, Speos optimizes light transmission in all types of opto-mechanical devices while taking into account industry norms. Speos can also be used for computer-generated images and reconstitutes the real light spectrum of objects (as opposed to the RGB spectrum normally used on computers). This makes it possible to transcribe a given color and display it under different lighting conditions. The colorimetry module added in 2000 allows forecasting actual color, independently of reflects or iridescence.\nFounded in 1989, Optis markets two other specialized applications: Solstis, used for correcting optical fibers in the telecommunications industry, and Light, which simulates indoor and outdoor lighting for architects and civil engineers.\nOptis began developing with CAS.CADE in 1997 and continued when the software was released in Open Source. The company currently uses Version 3.1 for continued improvement of Speos.\nFor the complete article (in French), see:\n\"Optis Reunit Optique et Mecanique avec Open CASCADE\"\nFor more information on Optis and Speos, see:","domain":"optical_engineering"}
{"url":"http://skeptic.live/10g-vcsel-laser-39.html","date":"2019-10-18T19:56:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986684425.36/warc/CC-MAIN-20191018181458-20191018204958-00445.warc.gz","language_score":0.9037120342254639,"token_count":1035,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__176308526","lang":"en","text":"In laboratory investigation of VCSELs using new material systems, the active region may be pumped by an external light source with a shorter wavelength , usually another laser. In addition, VCSELs can be implemented in a two-dimensional array, enabling a single die to comprise hundreds of individual light sources to increase maximum output power and long-term reliability. Another interesting feature of VCSELs is the long lifetime, as there is no facet which can be damaged by high optical intensities. In common VCSELs the upper and lower mirrors are doped as p-type and n-type materials, forming a diode junction. The high reflectivity mirrors, compared to most edge-emitting lasers, reduce the threshold current of VCSELs, resulting in low power consumption.\n|Date Added:||21 June 2013|\n|File Size:||9.98 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nAny slight variation in aluminium would change the oxidation rate sometimes resulting in apertures that were either too big or too small to meet the specification vcsle. A 2-D VCSEL array with many thousand emitters with a spacing of some tens of microns can emit several tens of watts continuous-wave.\nVertical-cavity surface-emitting laser – Wikipedia\nSemiconductor laser theory Laser diode rate equations. This makes it easy to collimate the output beam with a simple lenswhich does not have to have a very high numerical aperture. For larger mode areas, the excitation of higher-order transverse modes can not be avoided; this is a consequence of the extremely small resonator length of only a few microns, and the difficulty in homogeneously pumping a larger active region with a ring electrode.\nSorry, we don’t have an article for that keyword! Views Read Edit View history. SPIE14  D. An application area which was developed later, but has acquired a large market volume, is that of computer mice. Please help improve it to make it understandable to non-expertswithout removing the technical details.\nIn laboratory investigation of VCSELs using new material systems, the active region may be pumped by an external light source with a shorter wavelengthusually another laser.\nVCSELs have many applicationsthe most important of which are briefly discussed in the following. Physics of Photonic Devices.\nThere are several advantages to producing VCSELs, in contrast to the production process of edge-emitting lasers. This allows a VCSEL to be laeer without the additional problem of achieving good electrical performance; however such devices are not practical for most applications. The initial acceptance of oxide VCSELs was plagued with concern about the apertures “popping off” due to the strain and defects of the oxidation layer.\nAre you interested in learning more about VCSEL technology and how to use it to optimize your application? The high vczel mirrors, compared to most edge-emitting lasers, reduce the threshold current of VCSELs, resulting in low power consumption. They also provide reliable operation at distances ranging from very close proximity links i.\nThe current is often applied through a ring electrode, through which the output beam can be extracted, and the current is confined to the region of the resonator mode using electrically conductive doped mirror layers with isolating material around them. In this area, VCSELs partially compete with distributed feedback lasers DFB lasers01g offer a vcssl drive current, a wider tuning range and a higher modulation speed. Extended cavity diode laser Volume Bragg grating laser.\nVCSELs can also be tested at various stages of the manufacturing process while in wafer form, resulting in a more controlled and predictable yield with lower fabrication costs compared to other laser technologies.\nExpress 1, Wikipedia articles that are too technical from February All articles that are too technical Articles needing expert attention from February All articles needing expert attention All articles with unsourced statements Articles with unsourced statements from February Vertical Cavity Surface-emitting Lasers Find more supplier details at the end of the encyclopedia articleor go to our List of suppliers for vertical cavity surface-emitting lasers.\nFor full-text searches, use our search page.\nVCSEL Laser, 1310 NM – 1550 NM\nThis array can be customized to scale power output to optimally match application requirements using only a single alser driver and drive current. For instance, if the viasthe electrical connections between layers of a circuit, have not been completely cleared of dielectric material during the etch, an interim testing process will flag that the top metal layer is not making contact to the initial metal layer.\nSuch clocks could become part of compact GPS devices. This allows for cheap mass production of laser products.\nJapanese Journal of Applied Physics.","domain":"optical_engineering"}
{"url":"https://store.computerage.com.au/products/startech-com-13-3in-laptop-pri-vacy-screen-anti-glare-blue-l-ight-filter-screen-protector-2690360","date":"2024-03-01T23:24:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475711.57/warc/CC-MAIN-20240301225031-20240302015031-00046.warc.gz","language_score":0.7812973260879517,"token_count":333,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__49695188","lang":"en","text":"- General Information\n- Manufacturer Website Address\n- Brand Name\n- Product Type\n- Privacy Screen Filter\nThis laptop privacy screen features a universal design, compatible with 13.3\" laptops with a 16:9 aspect ratio.\nPrevent visual eavesdropping\nThis privacy filter is a convenient and cost-effective solution to protect your confidential data from unwanted viewers. The privacy shield darkens your laptop screen from the sides while providing a clear viewing angle of +/-30 degrees, offering a total visible area of 60 degrees.\nThe privacy screen protector is reversible, with an anti-glare matte side for environments prone to glare and a high-gloss side that helps retain color vibrancy. The matte side provides additional screen protection with a fingerprint-resistant coating.\nThe universal design won't interfere with top-mounted webcams, sensors, or when closing the lid. The privacy screen can be installed in two different ways. Affix the privacy screen shield to bezel-less displays using the transparent and residue-free adhesive strips. Alternatively, use the slide mount tabs to install the privacy screen on displays with bezels. The latter is recommended when frequent reversal or removal is required.\nBlue Light Reduction\nReduce eye strain and improve visual comfort with this blue light reducing privacy shield. It blocks 40% - 51% of the blue light emitted from the display in the 380nm - 480nm wavelength range. Digital eye strain can lead to symptoms like headaches, dry eyes, and blurred vision.\nThis TAA-compliant laptop privacy filter is backed for two years, including free lifetime 24/5 multi-lingual technical assistance.","domain":"optical_engineering"}
{"url":"http://dave9t5.zenfolio.com/p557056056","date":"2018-07-19T11:33:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590866.65/warc/CC-MAIN-20180719105750-20180719125750-00620.warc.gz","language_score":0.9491139650344849,"token_count":133,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__54023318","lang":"en","text":"Some test shots taken with the Pentax DFA 100/2.8 Macro. I had this lens for a day, then took it back. Wish I kept it.\nThe first 2 are at minimum focusing distance (1:1) broken screw that is 6mm (1/4\") across.\nThe second 2 are showing the out-of-focus (bokeh) characteristics.\nThese images were hand-held in low light (the bokeh images are 1/6 ~ 1/8 second!) and converted in-camera to low-res JPEG's, so take these images for what they are worth.\n© David Anthony","domain":"optical_engineering"}
{"url":"https://www.facekey.com/facekey-device-featured-in-man-on-a-ledge/","date":"2024-02-20T23:30:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473347.0/warc/CC-MAIN-20240220211055-20240221001055-00801.warc.gz","language_score":0.9262485504150391,"token_count":203,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__191483629","lang":"en","text":"Summit Entertainment, LLC did their homework.\nWhen they wanted a biometric device for their movie ‘Man on a Ledge’, they wanted a device that would really work, and was not just a mock up, or faked version of a security access control device. FaceKey’s Infra-red facial recognition device was a perfect solution. Movie set lights are bright and can affect the accuracy of ‘normal’ facial recognition devices that use a standard optical camera. Infra-red technology allows recognition in ANY lighting condition.\nPlease take 38 seconds to see the Youtube clip of Ed Harris using our product in the movie: http://youtu.be/eREOVtHa36A\nThank you to Summit Entertainment, LLC. for not only choosing the best biometrics device available for their movie, but also for allowing us to use the clip and showing our awesome products off to the world!\nCall us anytime for information, or visit our website for more information.","domain":"optical_engineering"}
{"url":"https://marylandeyeassociates.com/our-practice/our-services/laser-surgery/slt/","date":"2020-07-06T11:08:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655880616.1/warc/CC-MAIN-20200706104839-20200706134839-00065.warc.gz","language_score":0.9178797006607056,"token_count":115,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__90544748","lang":"en","text":"Maryland Eye Associates is proud to be one of the few practices in Maryland having this newest state of the art technology available. The SLT laser is used to perform a procedure called a Selective Laser Trabeculoplasty. This procedure used the pulsed laser light to equalize pressure in the eye that may be caused by glaucoma. This laser may be used together with medications or alone and has been shown to help in counteracting the eye pressure associated with glaucoma.\nSLT (selective laser trabeculoplasty)","domain":"optical_engineering"}
{"url":"https://company.hama.com/brands/celestron","date":"2024-03-03T08:52:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476211.69/warc/CC-MAIN-20240303075134-20240303105134-00616.warc.gz","language_score":0.927050769329071,"token_count":168,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__28630432","lang":"en","text":"THE CELESTRON BRAND\nEverything at Celestron began because of a German optics invention by Bernard Schmidt. Celestron was the first to realise the global importance of this revolutionary telescope design. The mass production of \"Schmidt-Cassegrain\"-type telescopes made telescopes that combine a large aperture with a compact form available to the general public for the first time. Thus, an idea that came from Germany means that Celestron can now be called the largest supplier of amateur telescopes in the world.\nCelestron has been one of the most well-known producers of astronomic and sports optics, telescope mounts and accessories for amateur astronomy for more than five decades.\nDID YOU KNOW…?\n…that former US President Obama used the Celestron CPC 800 at the first \"star party\" at the White House?","domain":"optical_engineering"}
{"url":"http://greenfrogsystems.com.au/","date":"2016-10-27T00:59:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988721027.15/warc/CC-MAIN-20161020183841-00102-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.9040685296058655,"token_count":157,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__247566124","lang":"en","text":"GREEN FROG SYSTEMS\nGreen Frog Systems is a world leading designer and manufacturer of high quality LED lighting and energy efficient solutions. Our products are designed in Australia for our harsh environment and are used in Mining, Oil and Gas, Industrial, commercial and Domestic applications all over the world.\nNew Stealth Range\nGREEN FROG SYSTEMS is pleased to announce its international launch of the new STEALTH range of Solar lighting solutions.Over 2 years in development in Australia, this new contemporary / ultra-modern lighting system is perfect for Pathways security lighting and minor roadways >>CLICK FOR MORE INFO<<\nGreen Frog Systems are proud to announce our new Australian Research & Development Division located in Greenacres, South Australia. Stay tuned for video releases of our rigorous performance and quality testing.","domain":"optical_engineering"}
{"url":"http://plusmobi.net/olloclip-Telephoto-Ultra-Wide-ACTIVE-LENS%20%CE%B3%CE%B9%CE%B1%20Apple%20iPhone%207,%207%20Plus-OC-0000215-EU-CORE-LENS-OC-0000213-EU","date":"2017-06-24T08:41:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320243.11/warc/CC-MAIN-20170624082900-20170624102900-00327.warc.gz","language_score":0.8683282136917114,"token_count":775,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__82849852","lang":"en","text":"olloclip Core LENS για Apple iPhone 7, 7 Plus - ΜΑΥΡΟ\nIt all starts here.\nThe all-new CoreTM Lens Set for iPhone 7 and 7 Plus delivers unmatched image quality, user experience and versatility with new premium multi-element optics. Fisheye, Super-Wide and Macro lenses are combined to offer a diverse range of options for capturing what you want, when you want. Shoot, edit and share unique perspectives instantly and easily.\nIntroducing the ConnectTM interchangeable lens system - exclusively for iPhone 7 & 7 Plus. Our new advanced lens system maintains all the best features of its award-winning predecessor and is now equipped to quickly configure with other individual iPhone 7 ConnectTM lenses.\nFor the first time, there is now a lens that can be instantly adapted to your environment. olloclip is committed to an obsession of continually enhancing the photography experience while giving full respect to mobility. That means no oversized, heavy lenses and paying strict attention to delivering beautiful photography in the smallest, simplest, quickest and most accurate user experience ever created.\n- Fisheye: Creative freedom through a unique 180° spherical effect with endless possibilities. Our brand new supercharged Fisheye is handcrafted to deliver crisp imagery with the widest field-of-view. A common favorite in skateboarding, the Fisheye lens is perfect for adding a unique perspective to almost any setting - including 360 degree VR shots of landscapes, portraits and even selfies with a group of friends.\n- Super-Wide: Capture more landscapes and more friends through our all-new advanced 4-element lens with over 120° field-of-view. The Super-Wide lens captures almost double the field-of-view of iPhone's native camera with maximum sharpness and minimal distortion. Great for panoramic scenery and tight interior spaces.\n- Macro: Get 15x closer to analyze, document and share beautiful macro photos and video with greater depth-of-field and less pincushion distortion. Transform iPhone into a digital microscope and go beyond what the human eye can observe to see the details in fabric, flowers and other textured materials.\nSee the Difference\nWithout LensWith Lens\n- New improved optics! Premium multi-element coated glass optics deliver superior image quality\n- Easy-to-use, patented system attaches and aligns instantly with no extra parts needed\n- Selfie-ready to work seamlessly on both front and rear-facing cameras\n- Connect™ interchangeable lens system for creating the perfect set to match your adventure\n- Hinged base keeps the lens flush with the camera for improved optical performance\n- Screen protector friendly up to 0.5mm\n- Wearable Pendant Stand keeps the lens accessible and opens to create a pocket-sized tripod\n- Works with all camera apps and is even great for video, time-lapse, panoramas and 360° VR photos\nFisheyeCreative freedom through a unique near 180° spherical effect with endless possibilities.\nSuper-WideAdvanced 4-element lens with over 120° field-of-view to capture more landscapes and more friends.\nMacro 15xTransform your camera into a digital microscope with 15x magnification for the ultimate close-up.\nConnect™ Lens SystemInterchangeable lens system quickly configures with other iPhone 7 Connect™ lenses. For the first time, there is a lens system that can be instantly adapted to your environment.\n- Height: 1.1 inches\n- Width: 2.5 inches\n- Depth: 1.8 inches\n- Weight: 1.2 ounces\n- Height: 27.9 mm\n- Width: 63.5 mm\n- Depth: 45.7 mm\n- Weight: 34.0 grams","domain":"optical_engineering"}
{"url":"http://afb1.activepoint.com/ecat/Steve/Coordinator_Guide/htmlsco/704.html","date":"2020-11-28T22:37:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195929.39/warc/CC-MAIN-20201128214643-20201129004643-00250.warc.gz","language_score":0.7682114243507385,"token_count":468,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__22806584","lang":"en","text":"Scotland 01236 431 857\nExport +44 (0)1482 649 665\nEngland & Wales 0115 982 1111\nEclipse Range of Refractometers\nManufactured in the UK with an IP66 rating, for measurements of soluble solid concentrations in terms of sugar percent of foodstuffs,\ndrinks, agriculture and horticultural products and products in manufacturing industries.\nMetal construction with glass prism and illuminating flap. Zero facility to allow user to zero the instrument on site using distilled water.\nInstrument is supplied with instructions in carrying case.\nREF1050 0 - 15% Sugar\nREF1052 0 - 30% Sugar\nREF1054 0 - 50% Sugar\nREF1056 30 - 65% Sugar\nREF1058 45 - 80% Sugar\nREF1060 75 - 93% Sugar\nMettler Toledo Refracto Hand Held Refractometers\nThe Refracto 30PX and 30GS are compact hand held refractometers. Easy to use, samples can either be added to the measurement cell or the sensor can be\nimmersed directly into the fluid with the result being displayed on a backlit LCD display as soon as the measurement key is pressed. Reftracto 30PX has an\noptical glass measuring cell whereas the 30GS has a sapphire measuring cell which extends the measuring range and speeds up temperature measurement.\nKey features include:\nClearly labelled panel makes operation =easy and efficient\nRefracto automatically compensates the refractive index reading to 20°C or any other temperature the user defines\nTemperature range 10-40°C, resolution 0.1°C\n30PX has an optical glass measurement cell whilst 30GS has a sapphire measurement cell which extends the measurement range\nStores upto 1100 results and, using software provided, can then transfer to a PC, Infrared / RS232 converter available as an accessory\nMeasurement range Resolution\nREF1700 Refracto 30PX routine refractometer complete with PC software\nPHM2632 Refracto 30GS extended range refractometer complete with PC software\nREF1702 Infrared / RS232 converter for Refracto 30 series refractometers for the transfer of stored measurements to a Printer or a PC","domain":"optical_engineering"}
{"url":"https://www.dekotools.com/blogs/updates/which-laser-level-to-choose-dkll12pb1-dkll12pb2-or-dkll12tdp02","date":"2022-01-22T11:32:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303845.33/warc/CC-MAIN-20220122103819-20220122133819-00154.warc.gz","language_score":0.8956589102745056,"token_count":998,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__224708594","lang":"en","text":"WHICH LASER LEVEL TO CHOOSE? DKLL12PB1, DKLL12PB2 OR DKLL12TDP02?\nDEKO offers many models of laser levels, from the ones with the red beam to the ones with three laser beam windows and the green beam. The models in the store are the best ones from DEKO's offer, allowing you to choose the right model for all kinds of application.\n1) Laser levels can be classified according to the placement of the exit openings for laser beam:\n- classic - horizontal laser beam window from the top of the laser level and vertical ones on the sides, such as DKLL12PB1 and DKLL12PB2\n- inverted - horizontal laser beam window from the bottom of the laser level, such as DKLL12TDP02 (DKLL12PT1)\nThe classic layout is relatively more popular in the market. Most of the manufacturers of plane lasers use such a system. It is more universal, versatile for various applications, especially when it comes to work requiring approaching the horizontal line as close to the ceiling as possible.\nDKLL12PB1 with a classic laser beam window layout\nThe inverted layout is chosen by people for whom it is important that the horizontal line runs as close to the floor as possible. It is especially useful when you are working with screeds, floors or tiles.\nDKLL12TDP02 with reverse horizontal laser beam window layout\nThe differences when placed on the floor:\n- the model DKLL12PB1 and DKLL12PB2 placed on the floor throws a beam horizontal height 10.5 cm\n- the model DKLL12TDP02 (DKLL12PT1) placed on the floor throws a beam horizontal at a height of 15 mm\nThe differences when placed against the ceiling:\n- the model DKLL12PB1 placed against the ceiling will throw the horizontal beam away from the ceiling by 20 mm\n- the model DKLL12PB2 placed against the ceiling will throw the horizontal beam away from the ceiling by 15 mm\n- the model DKLL12TDP02 (DKLL12PT1) placed against the ceiling will throw the horizontal beam away from the ceiling by 13.5 cm\n2) Differences in functions\n- Bevel function - All described models of DEKO laser levels have the bevel function. The bevel function allows you to set the plane laser at an angle to mark lines, e.g. for a stair railing. In the normal operation (self-leveling) mode, when you tilt the laser above the self-leveling tolerance, the device starts to emit sound and light signals. After activating the bevel function, the device will no longer use sound or light to inform you that the laser level is not on a horizontal surface.\nOn an unlocked or a locked pendulum?\n- Model DKLL12PB1 has the bevel function on the unlocked pendulum. When the bevel function is activated, we turn off the sound and light notification about the non-leveling.\n- Model DKLL12PB2, DKLL12TDP02 (DKLL12PT1) have the bevel function on the locked pendulum. When the bevel function is activated, we turn off the sound and light notification about the non-leveling, and at the same time the pendulum is mechanically blocked.\n- Working with the beam detector (receiver):\n- All models have a mode of operation with a beam detector (receiver). The detector allows you to work at distances up to 100 m in diameter in difficult lighting conditions, such as working outdoors in the sun.\n- Remote control - the DKLL12TDP02 (DKLL12PT1) model has a remote control included in the set that allows you to turn on and off individual laser windows at a distance of up to 20 m.\n3) Differences in housing and workmanship\n- The plane lasers have cases made of resistant plastic . Models DKLL12PB2, DKLL12TDP02 (DKLL12PT1) additionally have inserts made of hard rubber.\n- Models DKLL12PB2, DKLL12TDP02 (DKLL12PT1) have lithium-ion cells closed in the same housing. Replacing the battery is simple and quick, it requires recreating the plug under which the battery is placed.\n- The DKLL12PB1 model uses the same lithium-ion cells as in the other models. The battery is unscrewed with four screws from the bottom of the housing (screws hidden under the sticker).\non the left is the battery for the DKLL12PB1 model, on the right for the DKLL12PB2, DKLL12TDP02 (DKLL12PT1)\n4) Links of DEKO laser levels","domain":"optical_engineering"}
{"url":"https://masimo.tw/Rainbow/about.htm","date":"2023-03-29T15:20:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949009.11/warc/CC-MAIN-20230329151629-20230329181629-00621.warc.gz","language_score":0.8315127491950989,"token_count":313,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__257312307","lang":"en","text":"Masimo rainbow® Pulse CO-Oximetry™\nMasimo rainbow® is a noninvasive monitoring platform enabling the assessment of multiple blood constituents and physiologic parameters that previously required invasive or complicated procedures, in addition to providing Masimo SET® Measure through Motion and Low Perfusion™ pulse oximetry.\nMasimo rainbow® Measurements:\n- Total Hemoglobin (SpHb®)\n- Oxygen Content (SpOC™)\n- Carboxyhemoglobin (SpCO®)\n- Methemoglobin (SpMet®)\n- Plus: Masimo SET measurements of Oxygen Saturation (SpO2), Pulse Rate (PR), Perfusion Index (PI), and Pleth Variability Index (PVI®)\nBased on the solid foundation of Masimo SET technology:\n- Innovative noninvasive sensor technology uses more than 7 wavelengths of light to acquire blood constituent data based on light absorption\n- Advanced signal processing algorithms and unique adaptive filters work together to isolate, identify and quantify various hemoglobin species\n- Blood measurement results are then displayed numerically\nOxygenated Hb and reduced Hb absorb different amounts of Red (RD) and Infrared (IR) Light\n(Two-wavelength oximeters cannot measure total hemoglobin or dyshemoglobins)\nUpgradeable technology platform:\nThe upgradeable rainbow® platform lets you choose the rainbow measurements that are right for you now and be confident that your investment in patient safety won’t become obsolete tomorrow.","domain":"optical_engineering"}
{"url":"http://www.sdearthtimes.com/et0200/et0200s11.html","date":"2017-11-19T10:42:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805541.30/warc/CC-MAIN-20171119095916-20171119115916-00750.warc.gz","language_score":0.9249212741851807,"token_count":795,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__220415016","lang":"en","text":"Space-borne laser instruments to revolutionize understanding of global change\nprovided by Hampton University\nhe first years of the new millennium promise to revolutionize our ability to see how the natural world is changing and to answer perplexing questions about mankind's impact on the planet. For the first time, scientists will be able to peer inside forests across the world, accurately measure changes in the amount of ice in the polar caps, and get a global look at how clouds and airborne dust particles affect global warming.\nMany of these advances will be made when a new generation of laser-based sensors make their debut in space, says M. Pat McCormick, co-director of the Center for Atmospheric Sciences at Hampton University. In 1999, McCormick was selected by the American Meteorological Society as the Remote Sensing Lecturer for this year's meeting in recognition of his outstanding contributions to remote sensing of the atmosphere.\nThree new NASA Earth-observing spacecraft will launch innovative \"lidar\" instruments into orbit beginning this fall. Lidars send pulses of light energy from a laser through the atmosphere and measure the speed and the amount of light that returns. The signal's round-trip time is a direct measure of the distance to the object.\n\"Most instruments that scientists use to observe the Earth from space cannot see through even thin clouds or their view is distorted by clouds,\" says McCormick. \"Many surface features and important phenomena in the lower atmosphere are completely hidden. Lidar can pierce many types of clouds and its very small beam can pass between clouds.\"\nThe first of these instruments will be launched this September. The Vegetation Canopy Lidar mission will create the first maps of the three-dimensional structure of vegetation in the world's forests. By measuring the height of trees and the amount of leaves and foliage in a forest, the mission will monitor forest health and conditions over most of the globe and produce a global estimate of how much carbon the forests hold.\nThe ICESat mission, scheduled for launch in July 2001, will carry the Geoscience Laser Altimeter System to map the surface of Earth's ice sheets in unprecedented detail. By comparing how the ice sheet surface changes over several years, scientists can calculate how much ice has been lost and how much that ice has contributed to sea level rise. The ICESat lidar also will detect polar clouds and haze. A similar instrument, the Mars Observer Laser Altimeter, recently mapped the surface and ice caps of Mars.\nThe Pathfinder Instruments for Cloud and Aerosol Spaceborne Observations (PICASSO-CENA) mission, scheduled for launch in April 2003, will provide key measurements of aerosol and cloud properties needed to improve climate prediction. Hampton University is a partner with NASA on the PICASSO-CENA mission, and McCormick serves as a co-principal investigator.\nGround-based lidar systems were introduced in the early 1960s, and scientists used them to monitor ozone and small particles (aerosols) in the upper atmosphere. Airborne lidars were developed in the late 1970s to extend these local views to regional scales. The first spaceborne lidar flew aboard NASA's Space Shuttle in 1994. The Lidar In-space Technology Experiment (LITE) provided the first highly detailed global profiles of the multilayered structure of clouds. It also was able to follow the movement of airborne dust from the Sahara Desert and urban air pollution particles from major industrial centers.\nThe new generation of space-based lidar is the result of technological advances in more power-efficient, long-lived lasers and lightweight telescopes to collect the returning laser signal. McCormick was one of the early pioneers in the use of lidars and built the first airborne system in 1978. He serves as the LITE project scientist. McCormick led the Aerosol Research Branch at NASA's Langley Research Center from 1975 to 1996.","domain":"optical_engineering"}
{"url":"https://shop.canon.co.nz/lenses/rf-lenses/rf-24-105mm-f-4-7-1-is-stm-1.html","date":"2020-08-04T00:05:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735836.89/warc/CC-MAIN-20200803224907-20200804014907-00588.warc.gz","language_score":0.8963798880577087,"token_count":336,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__126994428","lang":"en","text":"Your everyday lens\nThe RF24-105mm F4-7.1 IS STM is the ideal lens for everyday use for both stills and video. With the high image quality and operability typical of an RF mount, it covers the focal area convenient for every day, enabling you to enjoy creative shooting from landscapes to close-ups with just one lens.\nIdeal kit lens for your EOS R System camera\nThis small and lightweight standard zoom lens with a 24 to 105mm focal length is perfect for shooting a wide variety of scenes. High-speed autofocus and Image Stabilisation for split-second photo ops along with never-fail, convenient functions for capturing precious memories make this lens a perfect addition to your kit.\nEquipped with an Optical Image Stabiliser\nThe CIPA standard 5-stop IS effects reduce camera shake and allow you to shoot sharp images even with hand-held shooting.\nCompact Lightweight Design\nWeighing in at just 395g, the RF 24-105mm f/4-7.1 IS STM is designed for comfortable handheld shooting.\nLens Control Ring For Fast Intuitive Shooting\nThe focus ring and control ring are shared and can be switched easily on the side of the lens. When switched to the 'Control' side, the lens offers customizable control over aperture, shutter speed, ISO or exposure compensation.\nIdeal For Shooting Video\nThe lens features stepping motor technology for autofocus that's smooth and silent for films and fast and responsive for stills.\nSelected shots from the RF 24-105mm f/4-7.1 IS STM","domain":"optical_engineering"}
{"url":"https://studysoup.com/tsg/47629/physics-with-masteringphysics-4-edition-chapter-30-problem-21p","date":"2021-03-02T10:57:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178363809.24/warc/CC-MAIN-20210302095427-20210302125427-00168.warc.gz","language_score":0.8827162384986877,"token_count":96,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__148675159","lang":"en","text":"The work function of gold is 4.58 eV. What frequency of light must be used to eject electrons from a gold surface with a maximum kinetic energy of 6.48 × 10−19 J?\nSolution 21 P:\nStep 1 of 1:-\nHere, we have to find the frequency of the incident light which will emit the electrons with a maximum kinetic energy of .\nFrom the equation of photoelectric effect,\nSo, the frequency of incident photon is .","domain":"optical_engineering"}
{"url":"https://accessorychoice.com/products/camer-lens-protector-3d-9h-hardness-tempered-glass-acg13","date":"2024-04-15T10:45:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00595.warc.gz","language_score":0.8479042649269104,"token_count":404,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__53922676","lang":"en","text":"- Made from High Quality Tempered Glass that offers TRUE HD transparency. Rear camera screen protector made by 9H tempered glass is designed for iPhone 12 Pro 2020 6.1 inch.\n- HD Clear screen protector with smooth glass surface and \"True Touch\" feel and keeps the bright and colorful image quality. Only 0.03mm thickness, Case Friendly design.\n- Ultra clear 99% high transparency provided you with a HD clear screen which gives you a real feeling. High quality tempered glass material, mini camera lens protector, protect camera lens from damages or scratches.\n- Nano-electrostatic automatic adsorption technology. Wipe down your lens; Peel off the whole bottom layer without touching the sticky area; Carefully align the space to setup the lens protector to your Phone Camera Lens.\n- Specially cut that doesn't block the flash when taking photos or videos, ensuring original high resolution.\n- Military-grade materials resist breaks, scratches, and shocks.\nProduct DescriptionTempered Glass Camera Lens Protector Protect fragile phone camera lens from knocks, impacts, and scratches with this tempered-glass protector. The hard-coated protector uses the power of military-grade glass to ward off screen-ruining scratches or dents. It offers super shock absorbance, high screen clarity, anti-oil, anti-scratch; it is your phone's best invisible guard. HD Clear screen protector with smooth glass surface and \"True Touch\" feel and keeps the bright and colorful image quality. Durable camera Lens protector with 9H tempered glass consistently protects your screen from scratches, scuffs and impact. Oleophobic layer prevents water, oil, dust, fingerprints. Keep the phone lens in HD transparent and clean all the time.\nPayment & Security\nYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\nCamer Lens Protector, 3D 9H Hardness Tempered Glass - ACG13","domain":"optical_engineering"}
{"url":"https://www.airforce-technology.com/news/news65209-html/","date":"2023-06-08T22:04:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655143.72/warc/CC-MAIN-20230608204017-20230608234017-00655.warc.gz","language_score":0.8974851369857788,"token_count":156,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__32223969","lang":"en","text":"The Swiss Air Force will receive 14 advanced targeting forward-looking infrared (ATFLIR) pod systems and spares for its F/A-18 Hornet aircraft.\nThe ATFLIR pod will provide the hornets with advanced electro-optical and infrared sensors with a tracking laser that can locate and designate targets day or night at a range of over 40nm and at an altitude of more than 50,000ft.\nThe pods can also pass precise tracking and targeting information to other nodes in the networked battlespace very quickly.\nThe sensor components utilise a single common optical path and continuous automatic boresight alignment to ensure accurate target coverage and sensor-to-shooter tactical mission support.\nThe pods will be delivered to the air force in 2011.","domain":"optical_engineering"}
{"url":"http://coadna.com/2/index.html","date":"2018-12-10T11:25:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00365.warc.gz","language_score":0.8337745070457458,"token_count":228,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__178841050","lang":"en","text":"Enabling Next Generation Intelligent Networks.\nCoAdna produces the Smart Photonic components, modules and systems for next-generation Optical Networks to enable the fast-growing high-speed broadband applications .\nA leading developer and supplier of photonic solutions\nCoAdna smart photonic solutions enable Software Defined Networks (SDN) at physical layer, empower our customers worldwide to expand their offerings of High Speed Internet services, IPTV, VOD, Smart Phones, Cloud computing/services and other emerging applications.\nOur products have been deployed in large volumes, carrying live traffic in major Long Haul, Metro and Access optical networks in North America, Asia, Europe and other regions of the world.\nVertically integrated based on our patented LightFlowTM technology, CoAdna products offer:\n• Superior performance\n• Exceptional reliability\n• Industry leading cost/power economy\n• Maximized flexibility and expendability\nCoAdna is your reliable business partner with excellent track records of strong customer supports and on-time delivery.\nCoAdna is ISO-9001, ISO-14001 and TL-9000 certified","domain":"optical_engineering"}
{"url":"https://passengerscafe.com/know-about-the-best-digital-camera-binoculars-review/","date":"2021-06-18T14:51:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487637721.34/warc/CC-MAIN-20210618134943-20210618164943-00236.warc.gz","language_score":0.9399875402450562,"token_count":656,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__40831160","lang":"en","text":"Know About The Best Digital Camera Binoculars Review\nHave you ever thought about it? combining the camera and the binoculars so that you can get to film everything you see. Well, it’s not such a bad idea. This idea of combination of binoculars and cameras was not initially very popular but the idea of having such a product seems to go a longer way. What you can do is to combine a digital camera with the binoculars so that you can easily film your area of interest or in other words, everything that you may see or watch can be filmed using the best binoculars with camera review.\nSo if you are in search of the one, then here’s a list of the bets digital camera binoculars review:\n- Solar mark Night Vision\nIt has built in 3 watt led. With 850 infrared illuminators which allows the vision as far as 250 metres. You can also use the suppliers AV cable s that you can view the photos and videos directly n the television screens. Also, you can transfer the file sot the cable using the provided USB cable. There is a micro SD card within the camera where you can store pictures in case you have lost the date and want to recover it again, then this is the right option for you. This is a perfect tool for hunting, fishing, surveillance job, playing fun and bird watching or watching concerts as well as sports. Also check Optic Zoo review about Solar Mark Vision(https://opticzoo.com/best-binoculars-with-camera-reviews)\n- Sony Dev 3\nThe innovative soy Dev 3 give the hunters, innovators, sport enthusiasts and others a chance to capture the full HD video (19020×1280 60p HD video). It has a Exmor or CMOS sensor and two binocular style lenses. For the purpose of memory storage, it has a slot empty for putting the memory card into it. these binoculars are possessing the ability to have external microphones onto your device. So that you can record things with much more clarity than before. Also, there is an option for auto-focus (10x zoom) which allows you to see your target more clarity. You can get these binoculars with best binoculars for the money. These are the binoculars with camera walmart best lightweight binoculars for bird watching.\n- CAMKING FS608\nThis is a shock resistance binocular with the comfortable non-stop grip and shop resisting especially. These binoculars are specially designed for the yogurt to outdoor acidities for theamateurs. They are shocked resistant binoculars which are especially designed for professional outdoor activities for amateurs. The LCD is specially designed for the dual purpose of telescope imagining and video recording, filming the ideas with a clearer vision and the better camera results. These are one of the best digital camera binoculars 2019.\nHowever, there are many more cameras with binoculars like this so that you may get the best one for yourself. These binoculars may vary in shape, size and prize but more or less they are made for one thing that is to shot with the camera while hunting or targeting your goal.","domain":"optical_engineering"}
{"url":"https://revammad.blogs.lincoln.ac.uk/2016/11/17/giovanni-ometto-progress-report-6/","date":"2021-10-23T09:10:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585653.49/warc/CC-MAIN-20211023064718-20211023094718-00347.warc.gz","language_score":0.9221904277801514,"token_count":260,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__247774875","lang":"en","text":"The algorithm for the automatic detection of the ONH is improved and is now the fastest and second best (0.26% difference) in terms of performance compared to the best in literature, when tested on MESSIDOR dataset. Qualitative results are also improved with an elliptical approximation of the ONH boundary. This was possible by describing the photograph distortion is caused by the quasi-spherical shape of the eye.\nA probability map is created based on a prospective database. The database includes 60 patients: 30 developed vision threatening DR / 30 did not. Approximately 10-year record from screening database for each patient (for an average of 7 visits each). The dataset includes more than 900 images and the analyses is made possible with the tools previously developed. The map returns the probability of developing vision threatening diabetic retinopathy given the location of the first detected microaneurysm for patients included in a diabetic retinopathy screening programme.\nExample result from the ONH detection with elliptical correction:\nThe model of the eye used to quantify the distortion due to the orthogonal projection\nof a curved surface:\nProbability of developing vision threatening diabetic retinopathy given the location of\nthe first detected microaneurysm for patients included in a diabetic retinopathy","domain":"optical_engineering"}
{"url":"https://karolingischeklosterstadt.com/rotating-laser-enables-faster-and-longer-cell-imaging-research-technology-april-2022/","date":"2022-09-30T23:13:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335504.37/warc/CC-MAIN-20220930212504-20221001002504-00078.warc.gz","language_score":0.9062117338180542,"token_count":792,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__149849124","lang":"en","text":"FREIBURG, Germany, April 20, 2022 – A microscopy method developed at the University of Freiburg is able to resolve detail at the cellular level without fluorescence, enabling observations 100 to 1000 times longer and 10 to 100 times faster, with almost double the resolution. The technique is called rotating coherent scattering (ROCS). It uses a rapidly rotating blue laser beam, causing light waves to scatter over cell structures to generate images.\n“We exploit several physical phenomena familiar from everyday life,” said Alexander Rohrbach, professor at the University of Fribourg. “First, small objects like molecules, viruses or cellular structures scatter – or distribute – the most blue light, which is known from air molecules in the atmosphere and which we perceive as blue skies.”\nSmall objects scatter and direct about 10 times more blue light particles than red light particles towards the camera and thus transmit valuable information.\nIn a microscopy imaging method developed by researchers at the University of Fribourg, blue laser beams rotate around an object 100 times per second (left diagram). The light waves diffuse at the level of the cellular structures (cell) and thus generate 100 super-resolution images per second. In a rotation of 10 ms (0° to 360°), continuously distorted light waves produce the razor-sharp image of a cell solely from scattered laser light, as shown in the photo. Courtesy of Alexander Rohrbach, University of Fribourg.\nThe method directs a blue laser at a very oblique angle at biological objects, as this greatly increases contrast and resolution in a manner similar to how fingerprints on a glass are easier to see when the glass is held at an angle to the light. The scientists illuminate the object successively from each direction with the oblique laser beam because illuminating only one direction would produce a lot of artifacts.\nThe researchers then rotate the oblique laser beam 100× per second around the object, producing 100 frames per second.\n“So in 10 minutes we already have 60,000 live cell images, which turn out to be much more dynamic than previously thought,” Rohrbach said.\nHowever, dynamic analysis like this requires enormous computing power to prove even a minute of visual material. Therefore, a variety of computer algorithms and analytical processes first had to be developed so that the data could be correctly interpreted.\nTogether with his colleague Felix Jünger and in cooperation with research groups from Freiburg, Rohrbach demonstrated the ability of the microscope to use various cell systems. “Our main goal was not to generate pretty pictures or movies of the surprisingly high dynamics of cells – we wanted to gain new biological insights,” Rohrbach said.\nFor example, ROCS technology allowed them to observe how mast cells open small pores in just milliseconds when stimulated to eject spherical granules with inexplicably high force and speed. The granules contain histamine, a transmitter which can cause allergic reactions.\nIn another set of experiments, the team observed how tiny virus-sized particles danced with incredible speed around the rough surface of scavenger cells, taking several tries to find a binding point on the cell. . These observations are pretests for ongoing studies of coronavirus binding behavior.\nIn addition, ROCS technology has been used within the CRC 1425 collaborative research cluster on scar formation in cardiac lesions. Fibroblasts (scar tissue cells) form 100 nm thin tubes. Using fluorescence-free technology, Jünger and Rohrbach found that the tubes vibrated thermally on a millisecond scale and the motion decreased over time. According to mathematical analyzes of activity, this indicates a mechanical stiffening of the nanotubes.\nThe research has been published in Nature Communication (www.doi.org/10.1038/s41467-022-29091-0).","domain":"optical_engineering"}
{"url":"http://protech.vn/product/caputure-dec-vari-nd-for-e-mount/","date":"2024-04-15T22:30:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00192.warc.gz","language_score":0.820162832736969,"token_count":960,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__65628585","lang":"en","text":"CAputure DEC Vari-ND for E-mount\nVari-ND Version DEC Adapter\nThe Aputure DEC Vari-ND is a wireless remote adapter that allows you to attach Canon EF-mount lenses to MFT mount or E-mount cameras. In addition to retaining all the features of previous DEC adapters, it is also equipped with an electronic variable ND filter, ranging from ND8 to ND2048. Multiple steps of light adjustment allow you to shoot with a wide-open aperture in bright light. The DEC Vari-ND expands the capabilities of Canon EF-mount lenses when you shoot with Micro Four Thirds or E-Mount professional cameras.\nBuilt in Electronic Vari-ND Filter, 9 Stops Light Adjusting\nThe DEC Vari-ND has a built-in liquid crystal variable ND filter, which can achieve ND8-ND2048. That’s 9 stops of light. When shooting, it not only can reduce the amount of light for longer exposure, but it allows you to shoot motion blur under bright light with the iris wide open. It can also help to achieve cinematographic depth of field, bringing more creativity and flexibility to your films.\nNo Color Shift, No X Pattern\nThe DEC Vari-ND has an optical design. It uses industry-standard lens and coating technologies. The high transparency of the crystal lens assembly can reach up to 98%. The adapter produces neutral colors with no shifting that traditional ND filters cause. There is also no polarization, which can sometimes create the “X” pattern on your footage.\nRetains All DEC Features\nThe DEC Vari-ND is compatible with all native Canon EF/EF-S lenses and MFT or E-mount cameras. With the adapter and its control system, you can wirelessly control focus, aperture, and focus with A-B points. It’s a smart adapter solution for your Canon glass.\nAdjustable via Control Box Buttons\nThe DEC Vari-ND has a new control box design, with an added wheel on the control box to manually control the intensity of ND and aperture. Now, not only can you control these values wirelessly via the supplied hand grip, but you can control them from the adapter itself.\nSmart Plug-In Design, Fit For Flexible Usage\nWith a simple click, you can choose between the Vari-ND filter or a transparent lens. When you’re in dark environments where you don’t need ND, your DEC Vari-ND can act simply as a follow focus adapter.\nComes With Safe Case\nThe DEC Vari-ND is mainly made with copper and aircraft-grade aluminum. The inside is crafted with velvet for optimum stability. The transparent lens cartridge comes with its own ABS case, and the entire package comes with an additional impact-proof hardshell case.\nComponents: Adapter Grip\nBattery Voltage 3.7V 3.7V\nBattery Capacity: 1400mAh 2600 mAh\nCharge/Remote/Update port: Micro USB Micro USB (charge only）\nCharge Voltage: 5V 5V\nPeak Current: ≤500mA ≤300mA\nBattery Durance: ≤10h ≤48h\nBased on a fully charged Li-ion battery, a Canon EF 24-70mm/ 2.8L II USM and CIPA testing standards.\nHumidity: 65±20% (without condensation)\nRemote Rate: 2.4GHz\nRemote Range: ≤100m\nConstruction Accessories: 1/4” jack Claw clip\nLens Compatible: Canon EF, EF-S AF lenses\nCamera Compatible: MFT(Micro 4/3 )-mount (for all frame sizes) camera\nE-mount (for all frame sizes) camera\nND range: ND8~ND2048\nEF 35mm f/1.4L USM EF 50mm f/1.8 II\nEF 40mm f/2.8 STM EF 16-35mm f/2.8L II USM\nEF 50mm f/1.4 USM EF 24-70mm f/2.8L II USM\nEF 24-105mm f/4L USM EF 70-200mm f/2.8L IS II USM\nEF-S 18-55mm f/3.5-5.6 EF 100mm f/2.8L II USM\nEF-S 18-200mm f/3.5-5.6 IS EF 85mm f/1.2L II USM","domain":"optical_engineering"}
{"url":"https://whatis.techtarget.com/definition/UHDV-ultra-high-definition-video","date":"2021-08-02T16:44:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154321.31/warc/CC-MAIN-20210802141221-20210802171221-00522.warc.gz","language_score":0.9368976950645447,"token_count":198,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__81406429","lang":"en","text":"UHDV (ultra high definition video) is a technology that provides video image resolution containing 16 times as many pixel s as HDTV (high definition television). People who have seen UHDV in operation have commented that the image quality is so good that it approaches the experience of \"being there.\" Some observers even reported vertigo from observing fast-changing images without the accompanying sensation of physical motion. UHDV was developed by engineers at the Japan Broadcasting Corporation (NHK).\nIn a UHDV video image, there are 4000 scanned horizontal lines per frame. This compares with 1000 lines per frame in HDTV images, and 625 lines per frame in conventional analog TV broadcasts. In experiments conducted by NHK, a charge-coupled device ( CCD ) camera has been used to provide the necessary detail in the captured images. The storage requirements are considerable. For example, 18 minutes of UHDV programming requires approximately 3.5 terabyte s of disk space.","domain":"optical_engineering"}
{"url":"http://www.brighthouse.co.uk/refurbished-cameras/quality-refurbished-fujifilm-finepix-s9200-bundle-white/","date":"2016-09-26T17:17:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-40/segments/1474738660871.1/warc/CC-MAIN-20160924173740-00013-ip-10-143-35-109.ec2.internal.warc.gz","language_score":0.8422167897224426,"token_count":1859,"dump":"CC-MAIN-2016-40","global_id":"webtext-fineweb__CC-MAIN-2016-40__0__13673068","lang":"en","text":"- Price Breakdown\nItems not sold separately. Shown for comparison purposes only.\n|Delivery & Installation\n|Product with 5 Star Service\nThe Fujifilm FinePix S9200 Digital Camera is a bridge-style point-and-shoot featuring a 16.2 Mp 1/2.3\" BSI CMOS sensor that is capable of producing high-resolution stills and full HD 1080i movies with notable low-light sensitivity to ISO 12800. High speed performance is afforded throughout the system, enabling fast continuous shooting up to 10 full resolution frames per second as well as an auto focusing speed of 0.3 seconds, a startup time of 1 second, and a shooting interval time of 0.5 seconds.\nThe built-in Fujinon 50x optical zoom lens provides a 35mm-equivalent focal length range of 24-1200mm, covering wide-angle to super telephoto perspectives to suit working in nearly any shooting scenario. Lens-shift type image stabilization helps to maintain sharp imagery throughout the zoom range by compensating for the effects of camera shake and, when recording movies, a dedicated 5-axis image stabilization system can be employed to further eliminate the appearance of motion for crisp, clear recordings.\nBoth a rear 3.0\" 460k-dot LCD monitor and 200k-dot electronic viewfinder are available for monitoring and image review. The LCD monitor provides a large, bright area ideal for scrolling through imagery while the electronic viewfinder provides eye-level viewing capabilities an additional point of contact between yourself and the camera for greater shooting stability.\nAmongst other features and imaging modes available, SR AUTO (Automatic Scene Recognition) can automatically determine the scene type you are working in and choose from one of six pre-determined sets of exposure profiles to optimize your results. Ten different Advanced Filters are also available to further enhance the look and feel of your photographs.\nFujinon 50x Optical Zoom Lens\nA super-long 50x optical zoom lens is integrated into the FinePix S9200's design, giving a 35mm-equivalent focal length range of 24-1200mm. This lens has a maximum aperture of f/2.9-6.5 and utilizes lens-shift type optical image stabilization to counter the effects of camera shake that become more apparent when working with longer focal lengths and in Super Macro mode. Aspherical and ED lens elements are incorporated into the lens construction to reduce aberrations and color fringing throughout the zoom range. For even greater reach, Intelligent Digital Zoom is available and can effectively double the zoom magnification to 100x with minimal loss in image quality.\n16.2 Mp BSI CMOS Sensor and Full HD Video\nThe 16 megapixel 1/2.3\" BSI CMOS sensor is able to deliver high resolution imagery with tremendous quality and notable low-light performance to ISO 12800. High speed shooting capabilities up to 10 full resolution frames per second are available as well as a fast 1 second startup time, 0.5 second shooting interval time, and a 0.3 second focusing time.\nAccessible through a dedicated Movie Recording Button, the sensor also lends itself to producing full HD 1080i videos in the H.264 format with the added benefit of 5-axis image stabilization to ensure smooth playback and motion rendering. Full 50x zoom, scene recognition mode, and still image capture capabilities are available during recording as well as the ability to record high speed movies up to 480 fps. Sound is recorded via a built-in stereo microphone and an integrated wind noise filter helps to deliver clean recorded audio. Video playback is possible on an HDTV directly from the camera.\n3.0\" LCD Monitor and Electronic Viewfinder\nThe S9200 is equipped with both a rear 3.0\" 460k-dot LCD monitor and an eye-level electronic viewfinder for monitoring and reviewing imagery. The electronic viewfinder has a 200k-dot resolution and a built-in eye sensor to deactivate the larger LCD monitor during use. The EVF enables eye-level shooting, which provides an additional point of contact to better aid in steadying your camera while shooting.\nSR AUTO can automatically apply one of six scene modes (Portrait, Landscape, Night, Macro, Night Portrait, or Backlit Portrait) to your image to optimize camera settings to best expose for the type of scenario you are photographing in.\nScene Position modes are selectable modes that can be used to ensure the camera is correctly exposing for the type of subject matter you are photographing. Modes include: Portrait, Baby Mode, Smile & Shoot, Landscape, Sport, Night, Night (Tripod), Fireworks, Sunset, Snow, Beach, Party, Flower, and Text.\nMotion Panorama 360 allows you to record expansive views up to 360° wide in a seamless, sweeping manner.\nDynamic Range (HDR) uses multi frame technology to capture three consecutive images of the same scene (one over-exposed, one under-exposed, and one normally-exposed) and combines the three into a single image in order to garner more highlight and shadow detail than is possible with a single exposure.\nBuilt-in social networking allows you to pre-tag and label images and video in-camera prior to offloading the imagery to your computer. Once tagged and delegated to the social platform of your choice, the images will be automatically uploaded once you connect the camera to your computer.\n- Bridge-style 16.2 Mp point-and-shoot camera\n- 50x optical zoom lens provides wide-angle to super telephoto perspectives\n- 3.0\" LCD Monitor\n- Shooting modes include: Motion Panorama 360, Portrait, Baby Mode, Smile & Shoot, Landscape, Sport, Night, Night (Tripod), Fireworks, Sunset, Snow, Beach, Party, Flower, and Text\n- Built-in social networking feature to upload photos\n- Full HD movie capture\n- 10 Advanced Filters\n- High Dynamic Range (HDR) capture\nCamera Type: Bridge Camera\nOptical Zoom: 50 x\nDigital Zoom: 2 x\nImage Sensor: 1/2.3-inch CMOS with primary colour filter Total number of pixels: 16.79 million pixels\nMedia Formats: Images: Jpeg, Videos: .Mov\nStorage Capacity: 38MB (Internal Memory) , plus memory card\nVideo Recorder: Yes - Full HD 1080p\n- Screen & Vision\nScreen Size: 3\"\nVideo: Yes - Full 1080 60i / 30p\nScreen Technology: LCD\nFocal Length: f=4.3mm - 215mm, equivalent to 24 - 1200mm on a 35mm format\nFull-Aperture: F2.9 (Wide) - F6.5 (Telephoto)\nConstitution: 17 elements in 12 groups (includes 3 aspherical and 2 extra low dispersion elements)\n- Key Features\nCamera Modes: Portrait, Landscape, Sport, Night, Night (Tripod), Sunset, Snow, Beach, Under water, Under water (Macro), Party, Flower, Text\nFlash Modes: Red-eye removal OFF: Auto, Forced Flash, Suppressed Flash, Slow Synchro; Red-eye removal ON: Red-eye Reduction Auto, Red-eye Reduction & Forced Flash, Suppressed Flash, Red-eye Reduction & Slow Synchro.\nPhotography Functions: SR AUTO, High Speed Movie (120 / 240 / 480 frames/sec), Adv. mode (Advanced Filter for still image : Toy camera / Miniature / Pop colour / High-key / Low-key / Dynamic tone / Soft Focus / Cross Screen / Fish-eye / Partial colour, Advanced filter for movie : Toy camera / Pop colour / High-key / Low-key / Fish-eye / Partial colour, Pro Low-Light, HDR, Natural Light & with Flash, Zoom Bracketing), Instant zoom, Framing guideline, Frame No. memory, Histogram display, Date stamp\nPlayback Functions: Multi-frame playback (with micro thumbnail), Protect, Crop, Resize, Slide show, Image rotate, Histogram display, exposure warning, Photobook assist, image search, Favorites, Mark for upload, Panorama, Erase selected frames, Movie edit\nFace Detection: Yes\nGeo Tagging: Yes\nAnti-reflective LCD: No\nImage Sharing: Yes\nSelf Timer: Yes\n- Inputs & Outputs\nUSB: Yes - USB 2.0 , Micro USB\nMemory Card: Yes - SD, SDHC and SDXC\nHDMI: x 1\n- Power & Energy\nPower Consumption: Rechargeable Batteries\n- General Information\nMaterial: Metal & Plastic\nExterior Dimensions: 122.6 x 116.2 x 86.9 mm\nWeight: 670 g\nProduct Code: FUS9200WH\nManufacturer Model Number: P10NC13050A\nNumber of Boxes: 1","domain":"optical_engineering"}
{"url":"https://biztechweekly.com/best-night-vision-monoculars-in-2022/","date":"2024-02-24T05:05:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474523.8/warc/CC-MAIN-20240224044749-20240224074749-00058.warc.gz","language_score":0.9094681739807129,"token_count":3325,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__205052965","lang":"en","text":"While we may associate night vision with covert military operations, there are plenty of good reasons for the average person to have an instrument that allows them to see objects and animals in the darkness.\nNight-vision monoculars work by collecting infrared light from the moon and the stars, and amplifying it, allowing you to see distances up to three football fields long at night. Whereas night-vision goggles and monoculars were once a cutting-edge technology that carried a high price tag with them, today’s night-vision monoculars are actually very affordable, making them an ideal companion for backpackers, bird watchers, and hunters.\nAhead, learn more about what features to look for in an IR monocular and find out why the models below are some of the best night-vision monoculars available.\n— Best Overall: Bushnell Night-Vision Equinox Z2 Monocular\n— Best Budget: Creative XP Digital Night-Vision Monocular\n— Best for Hunting: Night Owl NOXM50 Night-Vision Monocular\n— Best Digital: Carson MiniAura Digital Night-Vision Monocular\n— Best for Video: ESSLNB Night-Vision Monocular\nHow We Picked the Best Night-Vision MonocularsUnlike a set of binoculars or a standard monocular, a night-vision monocular is specialized to allow you to see in the darkness. While the monoculars we chose may not be the best for daytime viewing, they provide superior nighttime vision. Keeping that in mind, we chose monoculars that are capable of collecting ample infrared light to allow you to see, even in total darkness. Since these instruments are often used deep in the woods, away from civilization, we included models that are compact and lightweight, making them easier to tote with you on a journey into the backwoods, whether hunting, backpacking, or birdwatching. Since many like to record their nocturnal adventures, we also included monoculars that allow you to take photographs and even record video through the monocular, which can then be transferred to a smart device or computer. If you prefer another option, here’s our guide to the best night-vision goggles.\nBest Night-Vision Monoculars: Reviews and RecommendationsBest Overall: Bushnell Night-Vision Equinox Z2 MonocularClear Vision in Total Darkness. BushnellWhy It Made the Cut: Bushnell sets itself apart from the competition with its ability to stream live footage to a smart device via WiFi.\n— Magnification: 3X, 4.5X, or 6X\n— Lens: 30mm (30mm, 40mm, 50 mm)\n— Zoom: 3X\n— Affordable price\n— Viewing screen allows you to view pics directly from the camera\n— Works in total darkness\n— Streaming video can lag\nIts long range, coupled with the ability to record and even stream video, and a price that’s not outrageous make the Bushnell Equinox Z2 the best all-around night vision monocular on the market. A good monocular should be able to provide excellent range and Bushnell’s is outstanding.\nWith its 6X magnification, it can spot animals and objects from up to 1,000 feet away. While that in itself is impressive, what really sets the Bushnell apart is its ability to take video and pictures. The monocular can capture high-definition 1080p video, which you can store on a micro SD card and later upload onto a smartphone or tablet. What’s more, you can also stream that live video directly to a device via the monocular’s built-in WiFi, using the Bushnell Equinox app, which even allows you to control zoom remotely. Though the stream can be a bit laggy, it’s still a great feature to have if you happen to be using the monocular with a tripod.\nLike other night-vision monoculars, the Bushnell Equinox Z2 comes equipped with a built-in infrared illuminator, which allows you to get clear pictures, even in total darkness. The Equinox also gives you a few more options; in addition to its 6X base magnification, which provides maximum range, the Equinox is also available in 4.5X and 3X magnification, which offer less magnification and a wider field of vision.\nBest Budget: Creative XP Digital Night-Vision MonocularAffordable Sights. Creative XPWhy It Made the Cut: The Creative XP is the best choice for a monocular at this price point that can see in total darkness.\n— Magnification: 3X\n— Lens: 25mm\n— Zoom: 4X\n— Affordable price\n— Viewing screen shows allows you to view pics from the camera\n— Works in total darkness\n— Shorter range than some night-vision monoculars\nCreate XP’s night-vision monocular sets itself apart from other sub-$100 night vision monoculars with its ability to see in extremely dark conditions, a long battery life, and high level of magnification. Many budget-priced night vision monoculars require some level of ambient light in order to enhance your night vision. The Create XP is one of the few at this price point that allows you to see objects and animals, even in total darkness, which is why it’s the best cheap night vision monocular.\nThe Create XP comes with an impressive level of magnification, letting you see up to 650 feet away, thanks to its 4X-digital zoom and three-times optical magnification. There’s also a larger 32-gigabyte SD card, which allows you to store a lot of pictures, and unlike many monoculars that require you to hook up the camera to a computer to view footage, you can view pics right from the camera via a 1.5-inch display screen.\nThe Create XP also boasts good battery life, with a running time of up to six hours on a single charge. In terms of size, at about six inches long and two inches wide and 2.5 inches high, the Create XP is compact enough to carry in a pack or even keep in one’s hand so it’s at the ready while trekking through dark woods.\nBest for Hunting: Night Owl NOXM50 Night-Vision MonocularStalk Your Prey. Night OwlWhy It Made the Cut: The Night Owl offers impressive magnification while still maintaining a wide field of vision.\n— Magnification: 5X\n— Lens: 50mm\n— Zoom: None\n— Wide field of view at high magnification\n— Can be operated with one hand\n— Works in blackout conditions\n— No zoom feature\n— Can’t take pictures or video\nIf you don’t mind the fact that it won’t allow you to take pictures or zoom in and out, then the handheld Night Owl NOXM50 is an excellent option for viewing nighttime animal activity. The monoculars use a large lens to provide excellent magnification while still maintaining a pretty good field of view. It provides 5X magnification with a field of vision of 15 degrees, which is much larger than many monoculars at this level of magnification. That at least partly makes up for the fact that the Night Owl can not take pictures or video, nor does it offer a digital zoom.\nA built-in infrared illuminator, powered by a 3-volt lithium battery, provides sufficient viewing in blackout conditions. The larger lens on this device makes this monocular bulkier than most at nearly 8 inches long and 4 inches wide. Though it’s larger than other monoculars, it still maintains a relatively light total weight of about a pound.\nThe Night Owl comes equipped with a strap and large focusing ring, making it easy to operate with one hand, while a rubberized coating on the outside makes gripping this larger monocular more comfortable.\nBest Digital: Carson MiniAura Digital Night-Vision Monocular Digital and Compact. CarsonWhy It Made the Cut: This compact night-vision monocular is small enough to fit in a pocket but still produces a wide field of vision and crisp images.\n— Magnification: 1X\n— Lens: N/A\n— Zoom: None\n— Wide field of view\n— Small enough to fit in a pocket\n— One button infrared intensity controls\n— Only 1X magnification\nThe compact size and broad field of vision offered by this set of night-vision monoculars from Carson makes them ideal for hikers, backpackers, or hunters who don’t want to lug a heavy monocular around. The MiniAura weighs just 3.4 ounces and measures just 2.5 inches long and 2.2 inches wide. With such a compact build, this monocular is small enough to fit in a pants pocket, which you can do safely, given that it comes with a soft carrying case that protects it during transport.\nDespite its small size, the MiniAura gives you a wide field of view thanks to a broad viewing angle of 19 degrees. Though the MiniAura lacks the range of some larger monoculars, it’s capable of seeing objects up to 82 feet away in complete darkness with its 1x magnification. Plus, it creates high-definition images and allows you to control infrared intensity at the push of a button. The MiniAura also unfortunately lacks some of the features found on a larger night-vision spotting scope. It doesn’t have any video or picture taking functions and there is no zoom function. Still, for those who want a night-vision monocular that works well and won’t add weight to their pack, the MiniAura is a great option.\nBest for Video: ESSLNB Night-Vision MonocularRecord the Night. ESSLNBWhy It Made the Cut: The ESSLNB offers robust functions for taking pictures and video in the dark.\n— Magnification: 5X\n— Lens: 40 mm\n— Zoom: 8X\n— Records sound and video\n— Can connect to a TV\n— 8X zoom allows you to adjust field of vision\n— High level of magnification can make it difficult to track moving animals\nIf you’re looking for a set of night vision monoculars with the ability to take videos and pictures, then the ESSLNB monocular might be a great choice for you. It gives you the ability to take pictures or shoot video complete with sound, all of which is stored on a 16 GB SD card. What’s more, you can also view pics and playback video directly from the camera via a built-in 1.5-inch screen, so you don’t have to wait until you return to civilization to view your video. It also comes with multiple cables that allow you to connect to a computer for downloading footage, or connect directly to a TV to playback video. The cameras will also time and date stamp video and pictures, which is handy for tracking your nocturnal adventures.\nThe 40mm lens allows for 5X optical magnification and 8X zoom magnification, allowing you to target objects and animals from up to 656 feet while also adjusting the field of view. Plus, the infrared illuminator allows you to move between nine different brightness adjustments, which is key for setting the infrared level to suit the lighting conditions.\nThings to Consider Before Buying a Night-Vision MonocularMagnification: Magnification for a set of night vision monoculars ranges from 1X (which magnifies an image 100 percent over what you see with the naked eye) to up to 6X (600 percent magnification). Whether it’s a monocular or set of binoculars, most people tend to choose the highest magnification they can afford. This is a mistake when it comes to night-vision monoculars. Yes, a 6X monocular will allow you to spot targets three football fields away, but you may not be able to get a full view of any animal at closer distances 100 to 200 feet away.\nIn comparison, a 1X or 2X monocular may not allow you to pick up animals at long distances, but you’ll have a much easier time tracking objects and animals that are at a closer range. With this in mind, it’s crucial to consider how you’ll be using the monocular and choose the right lens magnification to suit those needs.\nZoom: In addition to the fixed magnification of the monocular lens, most night vision monoculars also allow you to zoom in digitally. Zoom powers range from 3X up to 8X, allowing you to zoom in or zoom out and change the size of the monocular’s field of vision, so you can continue to track an animal even if they move closer or further away from you. This makes them ideal for hunting or bird watching.\nInfrared: Night-vision monoculars allow you to see in darkness by amplifying small amounts of infrared light. Infrared light is produced by moonlight and starlight, which monoculars use both directly and indirectly (when reflected off of objects) to enhance vision at night. The infrared technology on night-vision monoculars is so sensitive that it can even allow you to see in total darkness. Many night-vision monoculars allow you to control infrared intensity, which controls just how much the monoculars amplify that intensity, based on how dark it is.\nVideo and Photos: Some night-vision monoculars not only give you the ability to see at night but also to record what you’re seeing by giving you the ability to take video or pictures. These night vision cameras come equipped with SD cards for storing this footage. Some also come equipped with built-in WiFi that allows them to stream footage to a smart device in real time. Whether you want a night-vision monocular that’s equipped to capture videos and photos will depend on what you intend to use your monocular for.\nFAQsQ: Are monoculars better than binoculars?Binoculars offer a greater field of vision due to their use of two lenses and hence both of your eyes; however, binoculars are a better choice for night vision as they allow you to maintain your natural night vision in one eye since they only have a single lens. Monoculars are also much lighter than binoculars, making them easier to carry around your neck. Some are even small enough to fit in a pocket.\nQ: What is the strongest magnification for monoculars?The monoculars with the highest magnification range between 5X and 8X magnification. While a high magnification may seem ideal, it’s not a good idea for viewing animals as tracking something that’s moving can be very difficult at high magnifications. A high magnification will also make it harder to get a full view of an animal or object while at close distances unless the monocular is equipped with a zoom feature that allows you to zoom out to change the field of vision.\nQ: Is a monocular good for stargazing?Monoculars are actually great options for stargazing, especially since they are much more portable than a telescope. The portability makes it easier to take them into remote areas away from surface glow that can make it more difficult to view the nighttime sky. While some models have a magnification that could be too high. Keeping that in mind, a monocular with an eight times magnification and a 42mm lens is ideal for viewing the stars.\nFinal Thoughts on Night-Vision MonocularsBushnell’s Equinox Z2 gives you options when it comes to magnification and lens size, as well as the ability to record live video footage or even stream footage in real time via WiFi, making it the best overall night vision monocular you can buy right now. Those looking for an inexpensive night-vision monocular should consider the affordably priced Creative XP Digital Night-Vision Monocular, with its 5X optical magnification and 8X digital zoom.\nFuturism may receive a portion of sales on products linked within this post.\n. . .","domain":"optical_engineering"}
{"url":"https://d2d-accessories.myshopify.com/collections/gen-7-headlight-bulbs","date":"2021-09-27T18:53:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780058467.95/warc/CC-MAIN-20210927181724-20210927211724-00031.warc.gz","language_score":0.8804815411567688,"token_count":126,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__51368320","lang":"en","text":"D2D Gen 7 LED Headlight Bulbs - the latest technology for the night time motoring experience!\nSeventh generation LED technology is a fanless based LED bulb replacement producing 4000 lumens of output making them the brightest LED solution to the automotive market. Seventh Gen LEDs are designed to have the same light pattern as conventional halogen headlight bulbs using the new Philips LED chips placed in a pattern to reproduce that of a conventional halogen filament.\nThe Gen 7 LED has a removable and reversible heat sink for easy fitment into almost any headlight housing.\nThe Gen 7 are CANbus compatible for most vehicles.","domain":"optical_engineering"}
{"url":"https://www.clarkeyecare.co.uk/product-page/maui-jim-tumbleland","date":"2021-03-07T14:27:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178377821.94/warc/CC-MAIN-20210307135518-20210307165518-00041.warc.gz","language_score":0.8856772780418396,"token_count":445,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__890848","lang":"en","text":"Maui Jim Tumbleland\nTumbleland is all about comfort and complete coverage. This mid-sized wrap frame is constructed of easy-wearing nylon, embedded rubber nosepads, and responsive spring hinges, while offering peak visual performance with SuperThin (ST) Glass lenses. Long days outside deserve the respite that PolarizedPlus2® lens technology and Tumbleland provides.\nThe Maui Jim Difference\nWhat sets Maui Jim apart from other brands is our unique ability to combine industry-leading technology, the culture and spirit of Hawaii, and all the benefits of an independently owned business.See True\nGlare washes out colours, obscures details, and fatigues your eyes. PolarizedPlus2® lenses eliminate 99.9% of glare, allowing you to see the world at its brilliant best. Featuring the industry's most advanced production techniques, our patented processes create an amazing difference you'll see immediately.Perceive More\nMany sunglass lenses simply darken your view, dimming and fading colour for a flat, low-contrast perspective. Our PolarizedPlus2® lenses enhance the colours your eyes naturally perceive. So you see vibrant, saturated colours with a higher level of contrast and greater depth perception.Be Well\nJust like your skin, your eyes need protection from exposure to the sun's rays. PolarizedPlus2® lenses eliminate 100% of UV radiation and provide protection against a number of additional stresses, helping your eyes stay healthy so you can keep taking in all the world's beauty.Live Freely\nOur sunglasses are meant to be worn, on sunny and cloudy days, on the beach and city streets. They're there to protect your eyes and reveal the world's brilliance, so the last thing we want is for you to worry about them. Our PolarizedPlus2® lenses incorporate a number of technologies specifically intended to maximize durability and convenience.\nAll frames have a 30 day returns promise. If you are unhappy with your product, you may return it to Clark Family Eyecare in an unworn condition.\nFrames and lenses must not be scratched, misshapened or damaged and be returned in it original packaging to claim full refund.","domain":"optical_engineering"}
{"url":"https://thehitc.com/the-hubble-space-telescopes-largest-infrared-image-to-date-dates-back-10-billion-years/","date":"2023-03-20T17:04:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943484.34/warc/CC-MAIN-20230320144934-20230320174934-00626.warc.gz","language_score":0.9215438961982727,"token_count":724,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__121032250","lang":"en","text":"The Hubble Space Telescope’s largest infrared image to date dates back 10 billion years\nThe largest near-infrared image of galaxies ever taken by the Hubble Space Telescope has provided a playground for astronomers looking for potential targets for the James Webb Space Telescope.\nThe image is the result of a project called 3D-DASH and was taken by the Hubble Space Telescope‘s Wide Field Camera 3 (WFC3), with additional archive data from Hubble’s Advanced Camera for Surveys. It covers 1.35 square degrees of sky, which is roughly the equivalent of six full moons, and contains thousands of galaxies. The goal is to identify the galaxies that are worthy of further study by the James Webb Space Telescope and other telescopes in the future.\n“I’m curious about Giant galaxieswhich are the most massive in the universe, formed by the merger of other galaxies,” said Lamiya Mowla, an astronomer at the Dunlap Institute for Astronomy and Astrophysics at the University of Toronto and leader of the new research, in a expression. “How did their structures grow and what led to the changes in their form? It was difficult to study these extremely rare events using existing images, which motivated the design of this large survey.”\nRelated: The best Hubble Space Telescope images ever!\nIt would normally have taken Hubble 2,000 hours of observation to create an image this large, but Mowla’s team used a new technique called Drift and Shift (DASH) that takes multiple exposures and stitches them together, compositing individual images eight times larger than the typical field of view of WFC3 (0.04 x 0.04 degrees). Also, instead of taking a picture every time it orbits EarthHubble was able to capture eight images using the DASH technique. With a total of 1,256 individual WFC3 exposures, it took only 250 hours of observing time to complete the entire mosaic.\nMost of the galaxies in the image are visible as patches of infrared light. The most distant ones can be seen as they existed about 10 billion years ago and had the light from brilliant star-forming regions within them redshifted until expansion of the universe in near-infrared wavelengths. You can see these galaxies in more detail in an online interactive version of the image 3D Dash Image Explorer.\nUnlike Hubble, Webb will be able to study these galaxies more closely thanks to the increased light-gathering power of the newer telescope’s 6.5-metre mirror. Featuring Webb’s first scientific quality images is scheduled to be released on July 12ththe release of the 3D DASH data is indeed timely.\nFor larger overview images, astronomers will have to wait for those from the European Space Agency Euclid mission and that of NASA Nancy Grace Roman Space Telescopewhich will have larger fields of view (0.79 x 1.16 degrees and 0.8 x 0.4 degrees respectively) than Hubble and Webb and are expected to come to market in 2023 and 2027 respectively.\nThe research has been accepted for publication in the Astrophysical Journal and a preprint version is available from arXiv Database.\nFollow Keith Cooper on Twitter @21stCenturySETI. follow us on twitter @spacedotcom and further Facebook.\nhttps://www.space.com/hubble-space-telescope-largest-infrared-image The Hubble Space Telescope’s largest infrared image to date dates back 10 billion years","domain":"optical_engineering"}
{"url":"https://www.glifeutv.com/products/6-g3-single-row-led-light-bar","date":"2024-04-14T23:33:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816904.18/warc/CC-MAIN-20240414223349-20240415013349-00762.warc.gz","language_score":0.8609256744384766,"token_count":238,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__190628707","lang":"en","text":"Our Race Series Single Row Offroad LED Light Bars are an extremely thin light bar. Don't let the 1 3/4\" tall design fool you! These single row light bars pack a punch for their small size. The combination of 7w Philips LEDs and 4D Projectors result in an Ultra Spot Beam Pattern made for distance! Our Race Series Single Row Bars also utilize military grade breathers, and dual stainless steel mounting brackets.\nOur 6\" Race Series Single Row LED Light Bar puts out 2600 Lumens\nAll of our Race Series Single Row Series LED Bars utilize 7w Philips LED Chips combined with a 4D Projector\nOur 6\" Race Series Single Row is 42 Watts, resulting in 3.5 Amps @ 12 Volts\nAll of our light bars feature a polycarbonate lens, which is an unshatterable, unbreakable material.\nComplete IP69k Waterproof\nAll of our products are covered under our Lifetime Warranty\nComes with: Mounting brackets, wiring harness and Lifetime Warranty.\nAll Race Series Single Row Bars are modular, meaning you can change the lenses out to achieve the beam pattern needed. Lenses sold separately.","domain":"optical_engineering"}
{"url":"https://www.prismlightinggroup.com/cri-you-are-no-longer-relevant/","date":"2023-11-30T08:28:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00145.warc.gz","language_score":0.9403631091117859,"token_count":624,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__273720400","lang":"en","text":"In our last blog “How a well-intentioned request could hurt LED lamp performance”, we agreed with the lighting sector’s demands to raise the standards for light quality in the EPA’s new LED lamp specifications. However, one of our blog readers commented on our general endorsement of improved light quality, and suggested that the standard criteria used to evaluate light quality—Color Rendering Index (CRI)—needn’t be increased or even used as a metric at all. Rather, he suggested, the Color Quality Scale (CQS) should be used to evaluate light quality, as it is a “superior metric for defining chromaticity”.\nThe limitations of CRI as a measurement system are well known. It is a method based on colour saturation and has the ability to create reduced—and even negative—values when the test source could be considered as superior in it’s colour rendition to the standard in which it’s being compared. This is particularly true with solid state lighting and for those of you unfamiliar with CQS, it’s a proposal for rating LED light quality that more accurately represents the color rendering qualities of the source and is intended to be an improved predictor for colors that have a high red content, such as skin color.\nOne of the main issues with CRI is that it averages 8 colors (which have a low to medium chromatic saturation) to obtain a ranking. This means that even if a lamp renders a few colors poorly, the CRI can still remain high, as long as those poorly rendered colors are not one of the 8 colors that are averaged.\nImage: Color Rendering Index color palette\nCQS, on the other hand, considers a number of factors in trying to define the way a light source reproduces colour. These include chromatic discrimination, human preference, and color rendering (the method evaluates 15 colors to more accurately span the range of normal object colors).\nDeveloped by researchers at the National Institute of Standards and Technology (NIST), a proposal for CQS’s adoption as the new color quality criteria has been under examination by a committee of the Commission on Illumination (CIE) since 2006. The CIE has had two previous attempts to refine the measurement standard for colour quality in the 70’s and 80’s, both of which ended in a stalemate and, according to industry insiders, a similar impasse seems to be occurring this time with various committee members preferring to adopt a “pure fidelity metric very similar to CRI”.\nFor a more in depth analysis of CQS, see NIST’s Rationale of Color Quality Scale.\nHas CRI lost its relevance? Is CQS the right answer or is the CIE correct in exploring alternative proposals? It’s certainly not the only alternative being discussed (for example, Lorne Whitehead at UBC: Improving the CIE Colour Rendering Index – How this can be done and why it matters).","domain":"optical_engineering"}
{"url":"https://okayozone.com/products/ozone-analyzer-uvoz-1200","date":"2024-02-24T11:47:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474533.12/warc/CC-MAIN-20240224112548-20240224142548-00171.warc.gz","language_score":0.7881328463554382,"token_count":375,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__60338437","lang":"en","text":"Ozone Analyzer UVOZ-1200 Dissolved Ozone Analyzer Ozone Calibrator Ozone Concentration Sensor for RAS Aquaculture Fish Farming Equipment\nEat and drink healthy with this beautiful multi-purpose ozone purifier.\nFunctions & Features.\nBased on Lambert Bill's law, the analyzer of UVOZ-1200 by measuring the change of the intensity of the light signal before and after the UV absorption to calculate the current ozone concentration. The equipment adopts the advanced dual UV light source system with the intelligent management system of the lamp tube and separated photocell technology that enables the analyzer has the characteristics of no leakage, anti-high pressure, anti sampling gas impact.\nThe ozone analyzer has a touch screen operation interface, which shows the real-time ozone concentration. And the touch screen is also with pressure & temperature compensation display. For the high concentration (g/Nm3) range, it has the function of flow input, which can display the output of the ozone generator in real time. The core component adopts long-life UV light system with the high light transmittance quartz to prevent zero drifting from affecting the detection accuracy. It’s no need to close ozone inputting when zeroing to ensure the equipment can run continuously 24 hours.\n- ozone generator manufacturers, municipal water industry\n- industrial sewage industry\n- fine chemical industry food and drinking water industry\n- space disinfection industry, swimming pool disinfection industry, etc.\nSpecification & Packaging\n|Light Source Life\n|About 10000 hours\n|4.3 inch touch screen operation interface\n|temperature & pressure compensation\n|Concentration Error :\n|Line Deviation :\n|the signal is 0.03S, showing is 0.3 S.\n|Antiseptic flowmeter and filter","domain":"optical_engineering"}
{"url":"https://sls4all.com/laser-sintering-optics-how-to-part-2/","date":"2024-02-26T08:50:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00502.warc.gz","language_score":0.9406121969223022,"token_count":2536,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__203632188","lang":"en","text":"I’d like to continue in the topics related to the optics used in my laser sintering printer. In my last post I have already touched the problematics of the suitable laser sources, described why I choose the laser diodes instead of e.g. CO2 lasers, how does the beam shape look like and how to change and collimate it. I ended up with the finding that my laser beam shape is too small. So, I’ll continue from this point.\nThe size (“diameter”) of the beam is important, because the larger the input beam, the better focused spot quality. Therefore, I decided to expand it.\nBeam expansion can be done by several methods. I have already tested the one using anamorphic prisms and I really didn’t like it. Later, I found the solution which suits me better. It comes out from the theory of telescopes.\nThere are two main groups of telescopes – refracting and reflecting – where the groups’ names are self-explanatory. Reflecting (also called Newtonian’s) telescopes use mirrors to reflect the light, refracting ones utilize lenses to bend or refract it. Actually, there is the third group called catadioptric telescopes which is the combination of the previous ones. It is fairly popular because it sorts out their cons (off-axis and chromatic aberrations). As I use the refracting telescope principle, I will look at it in deeper detail.\nGenerally, the reason for using beam expanders is the need for:\n- reducing the power density of the laser source\n- minimizing the beam waist radius at longer focal distances\nTelescope expanders keep the in/out beam energy nearly without any change. The beam area increases then quadratically with its magnification ratio (read further for explanation). This is pretty nice feature which enables effective energy density reduction. Because of that you can achieve longer lifetime of the optical components like mirrors, etc. You may think how can this be beneficial for the laser sintering in Inova SLS printer? And you are right. It does not make a lot of sense while using relatively low power laser.\nBut there is the second characteristic. If you increase/expand the diameter of the laser beam, you can better focus it at longer distance, which is great. Principle is simple. Telescope just expands the input beam by the magnification ratio. Simultaneously, it decreases the beam divergence, again by the magnification ratio. Both these facts will make the focused output beam diameter smaller at larger distance.\nBasically, you can choose from two arrangements of the refractive telescopes – Keplerian or Galilean. They both can do the same job and as with anything, each approach has its pros and cons.\nBoth telescope’s arrangements are very straightforward. The Keplerian telescope uses two double-convex or ideally plano-convex lenses in the line. In my case (I want to expand the beam), I use the one with smaller focal length just behind the laser module’s collimating optics. Currently, Inova uses the plano-convex lens with the focal length of 13.5mm (FL1). That is followed by the second plano-convex lens with the focal length of 40.5mm (FL2).\nNote: Convex side of the lens must always face the collimated beam to reduce spherical aberration.\nI think now it’s a good place here to explain how the magnification ratio is calculated. Again, it is not complicated at all because it’s the simple ratio of the FL2 and FL1. So, in our case it is 40.5/13.5 which represents magnification ratio of 3. It means that, when I have got collimated beam going from the laser module into the expander of approx. 2.5mm in diameter, I get approx. 7.5mm diameter as the output.\nI also had to count with the size of mirrors in galvo system while expanding the beam diameter. Actually, I overlooked it for the first time and had some headache because of that afterwards. Current lens setup is the real maximum of what is Inova SLS printer able to accommodate dimensionally. I plan to change it a bit – to the magnification ratio around 2.5.\nThe optical principle of the Galilean arrangement is the same as the Keplerian one. The only difference is that it utilizes one plano-concave and one plano-convex lens. As you can see on the following image, main advantage lies in the mounting space requirements reduction.\nSince the Galilean telescope uses plano-concave lens which has negative value of the focal length, it needs smaller mount space. As a result of that, if you use the same magnification ratio and the same focal lengths, Galilean setup is shorter by two concave lens focal lengths. In my case is the theoretical lens distance 54mm for Keplerian and 13.5mm for Galilean telescope.\nAnother quite important advantage of Galilean version, as compared to Keplerian, is there is no internal focus point. It means this arrangement can easily handle high optical powers with just a small generation of unwanted heat. On the other hand, you lose the possibility to place spatial filters into the internal focus point.\nCurrently, I use the Keplerian telescope arrangement in the Inova printer. Reason for that is prosaic – I didn’t have suitable lenses for Galilean setup. I don’t know why but it is much easier to find convex lenses than concave ones. But I plan to try Galilean telescope for laser sintering in the future.\nAnother operation you have to undertake with the laser beam is to focus it. This step makes the laser beam diameter smaller and increases the energy density. Thanks to that is Inova capable to do laser sintering and to make desired 3D parts.\nWhen I got to focusing the beam, I considered the following approaches:\n- F-theta lens\n- Simple plano-convex lens\nFocusing using f-theta lens\nWhat actually is the f-theta lens good for? In simple words, it is the piece of optic used for precise scanning of the flat surfaces.\nCombination of galvo and common spherical lens results in the spherical shape of the focused scanning field. Therefore, in case of flat selective laser sintering printer bed, you can achieve focused laser beam just at one point (in the center of the bed) or at one circle of defined radius. As compared to that, f-theta lens ensures to have laser beam focused across the whole bed. It is important because it keeps the energy density/beam size constant while moving along the bed. Following picture should help you to understand it. If you want to know more look directly here.\nDark side of the F-theta lenses, from the Inova printer perspective, is the price, size and the common antireflective coatings.\nPrices are normally in hundreds of EUR or USD. When speaking about the size it is around 100mm in diameter. You also need a long focal length to cover reasonable print area and it would make printer huge. Last problem is the AR coating – I didn’t find hardly any f-theta lens suitable for wavelength of 450nm. So, these are my arguments why I didn’t use it even I know I should.\nFocusing using plano-convex lens\nI can’t find a lot of arguments to use simple plano-convex lens for the beam focusing in the selective laser sintering printer. If money and printer’s size is not a problem, the best way is to utilize f-theta lens with the appropriate AR coating. But unfortunately, it is not my case. I had to find the way how to do it using simple and cheap lenses.\nWhen I was playing with the anamorphic prisms, I placed plano-convex lens with FL 300mm just behind them. It worked quite OK – I mean it focused the beam as expected. The only problem was to control the beam expansion ratio precisely and to direct it into the center of lens. As I said last time, it was the nightmare to set it up correctly.\nThen I moved to Keplerian telescope, and this problem disappeared.\nBy now, I spoke about telescopes just in relations to the beam expansion. But you can use them to expand and focus laser beam in one step and that’s just brilliant. You can make it by increasing the distance between the lenses (L1 and L2). Therefore, as you can see on the picture below, these two lenses are the only things I use to expand and focus beam.\nAnd how I handled the beam defocus causing the beam shape and size is changing across the print bed? Optically/mechanically it was no way. I tried several approaches how to change focal length automatically, but I was unable to make it good/precise enough.\nSo, I ended up with the software algorithms in the slicer which take this into account and compensate it. It seems to be a good way, so far.\nGalvo’s principle and parameters\nGalvos, alias galvanometers, are used in Inova to move laser beam along the X and Y axis. These moves are done by changing the voltage going through the coil inside the galvo. It changes the magnetic field and causes rotation of axle which holds the mirror. In principle, therefore, the bigger the voltage, the bigger angle of mirror rotation.\nSince the voltage changes can be quick, mirror moves can be pretty fast as well. That’s one of the reasons why special electronic drivers are used to ensure moves’ preciseness. When speaking about the preciseness, most nowadays galvos are closed loop systems. It means that driver sends position signal to the galvo and galvo gives feedback about its real position. It is done optomechanically – photodiodes and LED are in place.\nLight going from LED to the photodiodes is partially blocked/shaded by the plate connected to the rotating axle and mirror. Light intensity itself than represents this feedback which is equal to the mirror position. PID controller is also the must as you have to deal with the centrifugal forces on mirrors, friction in bearings, etc.\nGalvos are characterized mainly by:\n- Max. mechanical deflection angle: normally +-15°.\n- Speed: expressed in kilo points per second (kpps) at given deflection angle (normally at 8°)\n- Signal voltage: normally +-5V or +-10V (yes, you need both positive and negative potentials)\n- Power voltage: normally +-15V or +-24V (again, you need both positive and negative potentials)\n- Size and AR coating of mirrors\nInova uses DT40 galvo which has following parameters:\n- Max mechanical deflection angle: +-15°.\n- Speed: 40kpps at 8°\n- Signal voltage: +-5V\n- Power voltage: +-24V\n- Size and AR coating of mirrors: 7x12x0,8mm, suitable for wavelengths 400-700nm\nGalvo related issues\nI faced several issues while testing galvos. When I used a cheap galvo-set I had a problem that it was unable to make precise moves. I tested it by burning gray paper and e.g. instead of circle I always get something like open ring – start and end of the circle didn’t match. In my opinion it was the issue of the PID regulation, but I wasn’t capable to tune it. I have tried several cheap sets, and it was always the same. This problem vanished with the DT40.\nWe had also some problems with the SPI bus interferences caused by incorrect interrupts – it was our fault in FW implementation. But since this is more of a SW/HW topic, I’ll save it for another post 😉\nJoin us on Discord","domain":"optical_engineering"}
{"url":"http://www.abtechmfg.com/content/optical-radius","date":"2013-05-23T22:28:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704007597/warc/CC-MAIN-20130516113327-00050-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7987712621688843,"token_count":331,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__95172412","lang":"en","text":"For the most demanding optical radius inspections, ORS gages feature a fully captured linear air bearing straight to 100 micro-inches (2.5 microns) over the full 40 inches (1 meter) of travel. The optical radius slide has a fine adjustment feature that incorporates a 40 pitch screw with worm gear and hand wheel that allows for precise movements below 40 micro-inch (1 micron) steps. A high-resolution glass scale provides 1 micron/meter accuracy and a high-resolution digital readout (DRO) displays the encoder position.\nVarious high-resolution optical encoders (available with millions of counts per inch); high-resolution glass scale and digital readout (DRO).\nPart-holding and alignment fixtures; optical benches; multiple probes and gage stands.\nStraightness of travel accuracy of 100 micro-inches over 40” of travel (2.5 micron/meter).\nMeasurement and inspection of radius of curvatures for optics and linear accuracy of precision manufactured parts.\nORS1000: 40” (1000mm) optical radius slide\nDownload a product datasheet for the Air Bearing Optical Radius Gages, Model ORS1000\nABTech’s metrology gages measure precision in millionths of an inch.\nEvery metrology gage reflects ABTech’s decades of experience in ultra-precision motion and measurement. And every gage is designed, manufactured and assembled in-house using ABTech’s rotary and linear air bearing products.\nWhen you ask for the highest precision and most reliable metrology expertise, ABTech answers.","domain":"optical_engineering"}
{"url":"https://telecom.live/electric-lightwave/","date":"2024-02-26T04:24:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474650.85/warc/CC-MAIN-20240226030734-20240226060734-00460.warc.gz","language_score":0.8186558485031128,"token_count":182,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__66275454","lang":"en","text":"Electric Lightwave is one of the largest facilities-based providers of communications services in the western United States, providing advanced networking, communications and technology solutions in 35 metropolitan markets. The company owns and operates a 5,000-mile long-haul fiber-optic network, 3,000–miles of metropolitan fiber and a nationwide IP/MPLS network. Electric Lightwave’s fiber connects directly to more than 2,200 enterprise buildings and it has an expansive Ethernet-over-copper footprint.\nElectric Lightwave is now part of the Zayo Group.\nData Connectivity Products:\nFiber • Dark Fiber • EoC • DS1\nVoice Connectivity Products:\nHosted VoIP • Cloud Connect\nMPLS/VPLS • Security • DDoS Mitigation • Firewall\nNationwide (all 50 states)\nMore information available at:","domain":"optical_engineering"}
{"url":"http://reportvending.de/qma747bk/page.php?tag=4c8cfc-532-nm-to-rgb","date":"2021-04-23T02:00:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039626288.96/warc/CC-MAIN-20210423011010-20210423041010-00266.warc.gz","language_score":0.662129819393158,"token_count":832,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__210160649","lang":"en","text":"Red at 671nm, Green at 532nm,Blue at 405nm: Operation Mode. The system … ou payez en 4x 7,75 € dont 0,71 € de frais. These modules are designed for demanding applications that require both high stability and excellent beam quality. All Diode-Pumped Solid-State (DPSS) laser systems meet standards of CE, FDA, RoHs, and PAHs. 532 nm 0.070 Watts Single Mode Fiber Coupled Output RGB Photonics 532 nm 0.3 Watts Robust Laser Diode; Output power up to ... 532 nm 0.4 Watts Diode Pump Solid State Laser; Significantly improved 2nd harmonic conversion efficiency; Ultra-long coherence length; Zero green noise Power Technology 532 nm 0.05 Watts Diode Pump Solid State Laser; 14 wavelengths from UV to IR with power levels … RGB lasers for laser projection displays Günter Hollemanna, Bernd Brauna, Friedhelm Dorschb , ... (OPO), and several non-linear stages to generate radiation at 628 nm, 532 nm and 446 nm with an average output power above 18 W. Each of the three colors is modulated with the video signal in a contrast ratio of 1000:1 and coupled into a common low order multi mode fiber. They are manufactured by RGB Photonics, Germany. Single package size: 30X30X30 cm CW, TEM 00 /TEM 00 /TE 00. Package: Selling Units: 1pcs 1800mW RGB laser module+Driver+PowerSupply Unit+TTL cabel. 41% d'économie. 520nm is only less nice yellow, for 532nm, maybe you want yellow is green or blue, eachi projector is different, . 532nm, 70mW, Laser Module Overview These high stability 532nm laser diode modules deliver up to 70mW of output power. Application: DJ Disco, Clubs,Party, Music bar, Stage performance etc. Laser modulation signal:TTL (Frequency: 30KHz @ 0-5V input) Working environment:indoor(-10-35) degrees. Vendu et expédié par Yimosi. 30 €29 25 €24 HT 52,15€ 43,46€ HT. DPSS lasers are extensively applicable in fluorescence excitation, PIV, Raman Spectroscopy, laser display, spectral analysis, … Home > CW Lasers & QCW > RGB Photonics > DP-532NM-200MW 532nm, 200mW, Scientific DPSS Laser Module, Single Mode, Fiber Coupled Output Available $4895.00 Ships: 14 days | Model DP-532NM … 41% d'économie. Output Power @ 25 ℃ 100-1000mW (Note: the max output power of 405nm is 200mW.) Wavelength. ASP-SL-RGB-S6-XXX. Source laser: laser vert 532 nm, laser rouge 650 nm;Source de lumière LED: perles de lampe RVB trois en un;Mode de contrôle: manuel, à distance; Eclairage Laser. Laser wavelength: Red 638nm, Green 532nm, Blue 450nm. Why we advise customer choose 520nm in middle power 520nm, not because our 532nm, it is because 520nm lifetime, Analogue better than 532nm, just like I said, if you do 10pcs RGB projector using 532nm, the color, balance is the same, I give you big thumb, can you? Soit 108,18 € le kilo Soit 90,15 € HT le kilo. Introducing the most professional Diode-Pumped Solid-State (DPSS) laser with wavelength range of 405nm, 450nm, 473nm, 532nm, 635nm, 650nm, 808nm, 1064nm, RGB etc.","domain":"optical_engineering"}
{"url":"http://baseballmarinersofficial.com/10697/optical-fiber-ribbon-machine-check-this-out/","date":"2023-02-05T20:51:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500288.69/warc/CC-MAIN-20230205193202-20230205223202-00635.warc.gz","language_score":0.8979507684707642,"token_count":1040,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__184681793","lang":"en","text":"There are 2 significant varieties of optical fibers: plastic optical fibers (POF) and glass optical fibers – just how are optical fibers made?\n1. Materials for optical fibers\nPlastic optical fibers are generally created for lights or adornment like fiber optic xmas trees. Also, they are applied to short range interaction applications including on vehicles and vessels. Because of plastic material optical fiber’s high attenuation, they have restricted details transporting data transfer.\nWhen we discuss SZ stranding line systems and fiber optic telecommunications, we really mean glass optical fibers. Glass optical fibers are mostly made from merged silica (90% a minimum of). Other glass components such as fluorozirconate and fluoroaluminate are also utilized in some specialized fibers.\n2. Glass optical fiber manufacturing process\nBefore we begin speaking the best way to manufacture glass optical fibers, let’s first take a look at its go across area structure. optical fiber cross area is a circular framework composed of three levels inside out.\nA. The interior layer is referred to as the primary. This coating manuals the light and prevent light from escaping out by a phenomenon called total inner reflection. The core’s size is 9um for solitary setting fibers and 50um or 62.5um for multimode fibers.\nB. The middle coating is referred to as the cladding. It provides 1Percent lower refractive index compared to the primary materials. This difference performs a crucial component altogether internal reflection trend. The cladding’s size is usually 125um.\nC. The outer layer is called the covering. It is in reality epoxy cured by ultraviolet light. This coating provides mechanised safety for the fiber and makes the fiber flexible for dealing with. Without this coating layer, the Optical fiber coloring machine can be really fragile and easy to break.\nAs a result of optical fiber’s extreme small size, it is really not sensible to create it in one stage. 3 actions are required since we describe listed below.\n1. Preparing the fiber preform\nRegular optical fibers are produced by initially constructing a big-size preform, using a very carefully managed refractive directory profile. Only a number of countries including US are able to make large volume, top quality fiber preforms.\nThe procedure to create glass preform is called MOCVD (modified chemical vapour deposition).\nIn MCVD, a 40cm long hollow quartz tube is repaired horizontally and rotated slowly on a unique lathe. Oxygen is bubbled through solutions of silicon chloride (SiCl4), germanium chloride (GeCl4) and other chemical substances. This exactly mixed gas will then be administered to the hollow tube.\nSince the lathe turns, a hydrogen burner torch is moved up and down the outside of the pipe. The fumes are heated up by the torch as much as 1900 kelvins. This extreme heat triggers two chemical responses to happen.\nA. The silicon and germanium react with oxygen, forming silicon dioxide (SiO2) and germanium dioxide (GeO2).\nB. The silicon dioxide and germanium dioxide deposit on the inside of the tube and fuse together to form glass.\nThe hydrogen burner will be traversed up and down the length of the tube to deposit the content evenly. After the torch has reached the end of the tube, it is then introduced back to the starting of the pipe and the deposited contaminants are then melted to create a solid layer. This procedure is repeated till a adequate quantity of materials has become transferred.\n2. Drawing fibers over a drawing tower.\nThe preform will then be installed for the top of any straight fiber sketching tower. The preforms is initially lowered into a 2000 degrees Celsius furnace. Its tip gets dissolved till a molten glob falls down by gravitational forces. The glob cools and types a thread since it drops down.\nThis starting strand will then be pulled via a series of barrier covering glasses and Ultra violet light curing ovens, lastly on to a engine controlled cylindrical fiber spool. The engine gradually draws the fiber through the heated preform. The formed fiber size is exactly controlled by way of a laser beam micrometer. The running speed from the fiber drawing motor is approximately 15 m/second. Approximately 20km of optical fiber ribbon machine can be wound onto one particular spool.\n3. Screening finished optical fibers\nTelecom programs need very good quality glass optical fibers. The fiber’s mechanical and optical qualities are then checked.\nA. Tensile power: Fiber must withstand 100,000 (lb/square inch) stress\nB. Fiber geometry: Checks fiber’s primary, cladding and covering sizes\nA. Refractive index profile: The most essential optical spec xxyjcw fiber’s details transporting bandwidth\nB. Attenuation: Very critical for long distance fiber optic links\nC. Chromatic dispersion: Becomes increasingly more critical in high speed fiber optic telecommunication applications.","domain":"optical_engineering"}
{"url":"https://shop.sartorius.com/us/p/biopat-fundalux-12mm-for-1l-opl-10mm/BPF1L10","date":"2023-10-02T01:07:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510942.97/warc/CC-MAIN-20231002001302-20231002031302-00810.warc.gz","language_score":0.8420252203941345,"token_count":322,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__273081450","lang":"en","text":"BioPAT® Fundalux 12mm for 1L OPL 10mm\nThe BioPAT® Fundalux probe has a 12 mm probe connection, an optical path lenght of 10mm and an insertion length of 120 mm. The BioPAT®Fundalux probe is an absorption-based photometric probe that uses light from 840 nm to 910 nm to measure the turbidity in bioreactors and fermenters. This probe is applicable for a 1L Univessel®.\n- Item No.:\n*Custom/bulk order quotes are provided within 72 hours of request.\nThe BioPAT® Fundalux measuring system is designed for turbidity and total biomass measurement in the culture vessels of the bioreactors type Biostat® from Sartorius Stedim Systems GmbH. BioPAT®Fundalux probes precisely measure cell growth | total biomass as a function of absorption. The sensors are available in a selection of optical path lengths of 1,5 and 10 mm.\nThe measuring range of conecntration units is 0 - 0.5 to 4. The measuring range of OD 590 | 600 is 0 to 250. The measuring range of g/L WCW is 0 to 180.\nInsertion Length12 mm\nOptical Path Length10 mm\nDevice/Instrument CompatibilityUnivessel® Glass","domain":"optical_engineering"}
{"url":"https://www.simplyfrugal.ca/the-source-fujifilm-finepix-jx600-14mp-digital-camera-40-off/","date":"2021-09-24T00:17:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057479.26/warc/CC-MAIN-20210923225758-20210924015758-00042.warc.gz","language_score":0.8517155051231384,"token_count":162,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__221200367","lang":"en","text":"If you’re looking for a great little digital camera at a great price, check out this deal from The Source!\nSave 40% off the Fujifilm Finepix JX600 14MP Digital Camera, making it just $59.99. Here’s some information about the camera:\nThe JX600 has a 14 million pixel sensor that produces high-quality, low-noise results at sensitivities of up to ISO 3200 (not available at some image sizes). Its 5x optical zoom lens and image stabilization let you capture every moment with reduced camera and subject blur. Automatic Scene Recognition (SR Auto) chooses optimum camera settings for the best images of any scene.\nThis offer is only available online at TheSource.ca until June 18, 2014.","domain":"optical_engineering"}
{"url":"https://myzuluhyrow.agronumericus.com/optical-tweezers-thesis-68250xy1792.html","date":"2019-08-19T14:09:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027314752.21/warc/CC-MAIN-20190819134354-20190819160354-00415.warc.gz","language_score":0.8867815136909485,"token_count":944,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__85483848","lang":"en","text":"Authors contributing to RSC publications journal articles, books or book chapters do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.\nIt was necessary to construct a custom compressed air system to isolate the optical table from surrounding vibration so that we can accurately measure the pico-newton scale forces that are observed in biological systems. In all cases the Ref. The study of mechanotransduction in biological systems is critical to understanding the coupling between mechanical forces and biochemical reactions.\nFor reproduction of material from PPS: These last type of experiments exhibit large hysteresis and irreversibility. By doing so, I was able to monitor the oxygenation cycle of heme proteins reversibly over an extended period of time, confirming that the set-up meets the demand of physiological conditions.\nThus, an oscillating optical tweezer capable of applying time varying force and manipulating the cell cytoskeleton was developed in order to measure the mechanical properties and structural changes of single epithelial cancer cells and blood cancer cells.\nThis discipline has experienced a revolution thanks to the development of single-molecule techniques. We thus use photophoretic forces to trap printer toner particles by illuminating them with light at a wavelength where the particles absorb.\nRelated post for Optical tweezers thesis Recent Posts. Automated laser induced cell fusion with optical tweezers and optical scissors UCL. Also included are features such as acousto-optic deflection and multiplexing of laser traps, interferometry based tracking with quadrant photodiode and piezoelectric actuated nanostage for active feedback.\nCopyright remains with the author. Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.\nThesis Summary Molecular biophysics is a scientific discipline that studies biomolecules. In the last two decades optical tweezers have been used extensively in biophysics and atomic physics to study the building blocks of our world on the cellular and quantum levels.\nTherapeutic agent evaluation Abstract: Due to the recent advances in single molecule technology, it is now possible to probe such mechanisms at the single molecule level.\nDirecting both beams in symmetrical and equidistant paths with the help of optical elements, the beams were overlapped in a counter propagating orientation. We could also manipulate particles in the radial direction at velocity of 0.\nDifferently from the previous experiments, the unzipping of DNA can also be performed at controlled force. Identification of volume phase transition of a single microgel.\nThe third and final part of this work will describe a basic mechanotransduction experiment using the well-studied ZIF protein-DNA system. Preview Text corrected thesis for re-checking Jack version 4.\nThe DNA is a biomolecule that forms a double helix that stores the genetic information of the cells.In the first half of this thesis, we describe our study of the elongation dynamics of E.\ncoli RNA polymerase using optical tweezers.\nOptical tweezers constitute an important tool in modern biophysical research, as they allow the manipulation and tracking of individual molecules, such as enzymes that. Single beam and holographic optical tweezer micromanipulation have been explored. The single beam system used was a simple, compact, easy-to-use, safe and robust optical tweezer setup mounted on a standard research grade light microscope.\nM.S. Thesis. Development of a Multi-axis Feature Extraction System for Interfacing CAD and CAPP. Optical tweezers Optical fabrication and manipulation Optical assembly Plasmonic tweezers. M.S. Thesis.\nManipulation and assembly of three-dimensional microparts produced by two-photon photopolymerization. Stability, scaling and temperature in double-well optical tweezers. In: Quantum Electronics Conference & Lasers and electro-optics (CLEO/IQEC/Pacific Rim), incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.\nHigh-refractive index particles in counter-propagating optical tweezers | manipulation and forces | Astrid van der Horst, Ph.D. thesis Utrecht University, September In this thesis we discuss how the construction and assembly of the dual beam optical tweezers is done from start to finish.\nConstruction consisted of assembling a polarization maintaining laser. This was then split into two to create a dual beam effect.Download","domain":"optical_engineering"}
{"url":"https://www.gifa.com/vis/v1/en/exhibitors/GMTN2015.2401781","date":"2018-08-22T07:44:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221219692.98/warc/CC-MAIN-20180822065454-20180822085454-00544.warc.gz","language_score":0.6827647089958191,"token_count":116,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__197544166","lang":"en","text":"01277 Dresden, Germany\n+49 351 83391-3332\n+49 351 83391 3201\nControl equipment, automation technology\nConsulting, design, service and engineering\nTraining and education\nYour competent partner for laser and surface technology\nThe Fraunhofer Institute for Material and Beam Technology offers application-oriented research and development in the area of laser and surface technology.\nOur technical focal points are laser beam joining, cutting, hardening and ablation processes, surface treatment and thin film coatings.\n10-49 Mio US $","domain":"optical_engineering"}
{"url":"http://www.alatuji.com/m/detail/479/2197/optocontrol-cls-k-uv","date":"2019-09-19T12:41:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573519.72/warc/CC-MAIN-20190919122032-20190919144032-00445.warc.gz","language_score":0.6755255460739136,"token_count":129,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__58121172","lang":"en","text":"Thanks to the short wavelength of the light used, the CLS K UV fiber optic sensor allows it to detect mineral glass or plexiglas. The CLS-K UV is used for edge detection, presence detection, checking the position of glass plates or for inspecting coatings. Designed as a transmitter and receiver, it leads the light directly to the object via fiber-optic cable. This is ideal in cramped spaces or in difficult installation environments, since the electronics unit can then be mounted a long distance away.\nTidak ada video untuk produk ini\nTidak ada file catalog untuk produk ini","domain":"optical_engineering"}
{"url":"https://outdoorchecker.com/binoculars-buying-guide/","date":"2023-09-23T08:45:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506480.35/warc/CC-MAIN-20230923062631-20230923092631-00102.warc.gz","language_score":0.9581150412559509,"token_count":2697,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__275293933","lang":"en","text":"Binocular and its Features\nWhat is a binocular?\nBinoculars are nothing but a handheld device which comprises of a series of prism and lenses that allows the viewer to magnify the subject and the field of vision. This helps in better viewing of things which are far off or distant and can be visualized by using both eyes.\nThe various features found in a Binocular are the numbers that are associated with them, the field of view, Exit Pupil, Relative Brightness and Twilight Factor, Prisms, Lens Coating, Focusing, Diopter Adjustment, Interpupillary Distance, Close Focus, Eye Relief, Weight, Waterproof, Armoring, Tripod Mounting and the Application.\nCheck list before buying a binocular\nAll the Binoculars are usually marked with 2 numbers and some may have 3 numbers and they are called as zoom binoculars. The first number normally denotes the magnification level of the Binocular. In a binocular which is numbered as 8×40, the 8 shows that the magnification of the image is about 8 times closer.\nIn a zoom binocular where there are three numbers like 7-15×40, the first two numbers denote that there is an option for fine-tuning the binocular’s magnification from 7 times to 15 times closer.\nThe magnification of a binocular required to choose carefully for a hand-held binocular, because when the magnification increases not only the image size becomes closer but also the finest details and the shaking and trembling of the hand is been taken into account. Naturally, the image brightness goes down along with the steadiness. A maximum of 10x magnification can be used for a handheld binocularly. More than that definitely requires a tripod for support.\nThe second number is the diameter of both the front lens which is in millimeters. This is the one which determines the performance. The difference between both 8×25 and 8×40 binoculars is that the more the diameter is, it enhances brightness and sharpness of the image. Wide beams of light are left from the eyepieces which make viewing comfortable with a large diameter.\nOn the other hand, if the diameter is more then the lenses are heavy and finally make the binocular also heavy to carry. Devices with smaller diameters make them light weighted and compact enough to carry while on travel.\nThis second number of the binocular definitely does not indicate the field of view which is a mistaken and common opinion of many.\nField of View\nIn a binocular, field of view is nothing but the area seen through the lens. It is determined by the magnification and the eyepiece. The larger the magnification is then the more detailed view is perceived but less area. A 10x show more clarity than an 8x while the latter allows more area to be visualized. So it all depends on the need to view the user wants. The eyepiece is yet another factor which decides on the field of view. Wide-angled eyepieces though expensive are of excellent optical quality that gives you sharp images.\nThe binoculars have a beam of light that is erupted from the eyepiece which is measured in millimeters and the actual width of it is known as the exit pupil. When held at an arm’s length, a circle of light can be seen in the center of each eyepiece. This is calculated as the exit pupil. The exact size is calculated by dividing the first number of the binocular with the second number which gives you the size of the exit pupil. For example, 7×35, 10×50 and 8×40 all have the same exit pupil size of 5 to it.\nThe exit pupil shows brighter images in low light also if it has large exit pupils. Normal viewing requires only 2.5 – 3 mm exit pupil. Nevertheless, astronomical requirements need 5-7 mm only. More than 7 mm of the exit pupil is not preferred since the human eye cannot extend or accept such a large exit pupil. But the traditional marine binocular uses a 7×50 which has an exit pupil of 7+ which can be kept centered on the eye as on the deck of a moving ship or a boat.\nRE or Relative Brightness\nRelative brightness is also an amateur guide to the brightness of the images like that of an exit pupil. The RE is calculated by squaring the exit pupil of the binocular. If the exit pupil is 5 mm then the RE is 25.\nThe twilight factor of a binocular is determined by a simple mathematical formula that calculates or predicts the amount of clarity or detail that can be visualized in very dim or low light. It is arrived by deriving the square root of the magnification factor with that of the objective lens. The square root of 10×40 is 20 (20×20 = 400) and so the twilight factor is 20. This is also only a rough estimate and should not be taken too literally to evaluate the quality of the binocular.\nThe prism of a binocular is the glass piece or element that is used to get an upright and perfect image corrected right to left. Usually, binoculars use either a Porro prism or a roof prism.\nA Porro prism has the front lens and the eyepiece always set apart and never in a straight line. Optically speaking this is more efficient and less expensive than other types. A Porro prism is quite larger and bulkier and it can be easily identified by its size and design. This is an older style and version of the binoculars.\nThe roof prism is much smaller and it has a shape like that of a small house with a roof on top. This is much smaller and compact in to handle than that of a Porro prism. It feels good to hold and handle a roof prism binocular though it is expensive. A roof prism binocular can be easily identified as both the eyepiece and the front lens is either aligned in a straight line or a straight tube.\nOptically, the binoculars which possess sharp roof prism are phase-corrected and the bright roof prisms do have silver coated mirrors to yield better results. The precise alignment of the roof prism benefits as it is kept safely in a cage like and the focusing mechanism is found to be on the inside of it. This helps in more rugged and smoother focusing in a roof prism binocular.\nThe different grades of the optical glass that are used as prisms are either Bak4 or BK7. Bak4 is usually used only by high-quality binoculars and the BK7 is considered to be of inferior quality used in cheap or inexpensive binoculars.\nThe chemical coating that is found on the lenses of a binocular which produces bright images known to be lens coating. This coating is required as whenever a beam of light strikes the lens a percentage of it is lost. To avoid loss of light the lenses are given a chemical coating.\nThe three different types of coatings are the fully coated or the multi-coated or the fully multi-coated.\nWhen a single layer of magnesium fluoride is coated over the lenses it is called as a fully coated binocular. This is the oldest method used and is also found to be the least efficient. The images produced by this binocular are not very bright and it is usually used only in cheap binoculars.\nWhen multiple levels of coating with special chemicals are given to the lenses they allow maximum light to pass through them. This is best in most of the handheld binoculars and they are easily known as multi-coated binoculars. They are certainly brighter than normally fully coated ones.\nWhen a binocular has all its lenses covered with multi-coated then it is known as FMC or fully multi-coated binoculars. This allows the brightest possible image and always used in all the quality binoculars manufactured.\nThe focusing of a binocular has three types to it. The binoculars with center focus have a single wheel which helps to focus on the subject. This allows focusing on both far off and nearby objects and is one of the versatile focusing systems for a binocular.\nThe IF or the Individual Focusing binoculars have separate focusing for both the eyepiece. This works well with the medium and long-range images but does not suit for close vision. These are mainly used for the marine binoculars and the astronomical binoculars.\nThe third one is a cheap version of the individual eyepiece focusing binocular. In these, both the eyepieces are already present and no further adjustments could be done individually to them. These binoculars cannot be focused any more than forty yards and this happens to be a handicap since most of the people have one eye a bit stronger than the other. This type of binocular does not correlate both the eyes vision individually. They are otherwise called as “no focus” or “focus free binoculars”.\nThis is a feature which allows adjusting the difference of vision between the right and left the eye as always one is greater than the other. The diopter adjustment is usually found in all the binoculars other than the focus-free ones. Traditionally the adjustment was placed in the right eyepiece but in the latest models, it is a separate wheel or a locking mechanism that is located on the center focus knob.\nAn Interpupillary Distance or the IP of a binocular is the exact length or distance from the pupil of the eyes. Most of the binoculars have the option to make adjustment accordingly to the width of the face but sometimes persons who have smaller faces or ones who have larger faces may find it difficult to get them fitted into the binoculars properly.\nIn a binocular, there is a possible distance the device will be able to focus. The maximum closeness that is accommodated by the binocular is known to be the minimum or close focus of a binocular. This is mainly used in bird watching.\nThe Eye Relief of a binocular is the most possible distance that a person can place their eyes from the eyepieces and still be able to view clearly. This mainly noted for those who wear spectacles. Their glasses would prevent them to get close to the eyepieces. They have to be careful and if they wear a thin plastic lens they would be able to maintain about 13 mm distance. But if they wear thick and heavy glasses, it would be preferable to go for a binocular which has an eye relief of up to 17-20 mm range.\nIt is advisable to push the eyecups to a down posture when the person wears spectacles and revert back to up when not wearing them. In olden days there was a rubber fold down as eyecups but the modern and latest binoculars have either a twist up or pull up styled eyecups.\nUsually, a binocular of 30 – 35 ounces is normal to carry around without any discomfort. But if pain develops over the neck, it is advisable to loop the binocular with a shoulder harness which shifts the weight to the shoulders from that of the neck.\nWhen a binocular is said to be waterproof, it is then fully filled with nitrogen on the inside of it. A waterproof binocular is always fog-proof inside as moisture can splash on the outer surface but it should not get collected inside. Waterproof is not exactly water-resistant or climate-proof or rain-proof. If the usage is preferred for harsh conditions it is better to go for a waterproof one as it is tightly sealed and does not allow dirt or dust collection also into it.\nWhen a binocular is covered or housed within a rubber or any other synthetic covering which protects it from scratches or from accidental bumps and bangs, then it can be said as an armored binocular. This should not be mistaken for waterproofing. This just makes it quite comfortable and safe for the binocular.\nA binocular is mounted over a tripod if it comes with a tag which says it to be tripod adaptable and if there it is threaded for the use of a tripod adapter. Sometimes the adapter had to be purchased separately. The tripod socket is normally found on the front of the center hinge, where the binoculars normally fold. It is kept hidden under a cap. Binoculars with larger magnification normally need a tripod to steady them for shaking by holding them in hands. Even heavy binoculars with a heavy objective lens of more than 70 mm would need a tripod in order to balance the added weight.\nTo conclude, the binoculars have a long history and have been a good companion to a man in his various pursuits of nature via invention and discovery. Binocular lovers or owners might be still curious to know the various details about them and would be keen on trying to understand their device in a much better way.","domain":"optical_engineering"}
{"url":"https://saazs.com/reflector-vs-projector-headlights/","date":"2024-04-14T12:12:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00162.warc.gz","language_score":0.9568356871604919,"token_count":2262,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__8917518","lang":"en","text":"Reflector Vs. Projector Headlights: Which Is Best?\nA headlight is a device that helps the driver of any car see the road ahead at night, as well as on cloudy or foggy days. Headlights use light to illuminate the path ahead and may also be used to help some drivers see around corners.\nWhen you head out to buy a new set of car headlights, it’s important to make sure that you get the right type. When buying headlights, there are two types of light sources: projector and reflector.\nThe headlights will be the only light source that you will see when driving and, in most cases, it provides a crucial role in your safety. One has to make a decision about whether they want to go for reflector headlights or projector headlights.\nSo, pay attention as I go over the details. Before I continue any further, keep this simple rule in mind: HIDs are better for projector headlights and LEDs are better for reflector-type headlights. Trust me, this will make comparing both much easier.\nWhat Are Projector Headlights?\nProjectors are a newer type of headlight housing technology that is becoming increasingly popular, especially for higher-end luxury vehicles. New projector housing is becoming more common among luxury cars thanks to their sleek and visually appealing design.\nProjector headlights are used by consumers to improve visibility but not every new vehicle comes with these headlights. I’ll talk more about that later on. Both the reflector headlight and a projector headlight have a bulb that shines in a reflector bowl, so they are similar in a way.\nAnd that is their only similarity. Light from projectors is directed through a lens before hitting the front of the car. However, reflector headlights do not contain lenses.\nFocusing the light is achieved using a lens known as a condenser lens. Using a lens will increase the brightness of the bulb while demonstrating less light waste. Reflector headlights give off light in all directions, but projector headlights project the light straight ahead.\nTypically, when driving at night you want headlights that are bright enough to see around curves, and when driving during the day you want your lights bright enough to help you see in front of you.\nWhat Are Reflector Headlights?\nReflector headlights are old-school headlight housing technology that is still popular among car manufacturers. Reflector lights provide better protection against glare and light reflection.\nThe advantages of reflectors are that they also provide superior low-light visibility, improved depth perception, and increased safety. However, their disadvantage is that they don't project as much light as the projector headlights do.\nThey use a reflecting material or mirror to reflect light from the car's headlights back towards the road. The primary function of a vehicle's headlights is to illuminate the road ahead.\nBut it is also important that they be able to reflect light back into the eyes of oncoming drivers and pedestrians. Reflector headlights help ensure that oncoming drivers and pedestrians can see your car approaching, even in low-light conditions.\nLEDs and HIDs: Which Is The Best For A Projector/Reflector?\nFor a projector and reflector, the LED or HID headlights to use can be a tricky issue. Let's take a closer look at the two technologies and decide which option would work best.\nWhich is better? If you're looking for brightness with a longer run time, then HID is better for you. If you're looking for affordability with less power consumption, then go with LED lights.\nAs I’ve said before, HIDs are better for projector headlights and LEDs are better for reflector-type headlights. To improve visibility, you should upgrade your headlights to LEDs if you have reflector headlights.\nReflector headlights can also be fitted with HIDs, but they will not be as bright as LEDs, and they are less easy to install than LEDs. We strongly recommend consideration of HID lights if you plan to upgrade your car's headlights to LEDs, but your car has projector headlights.\nOne thing to note about car headlights is that they should be well lit for safety purposes. So, it will be wise to choose an LED or HID based on the purpose of your projector/reflector for headlights - visibility or brightness.\nLEDs and HIDs are the two types of light bulbs that are most commonly used in car headlights. However, there is a difference between them - both in terms of brightness and lifespan. While LEDs cost more than HIDs, they last longer and require less maintenance.\n- HID For Projector\nIf you are looking for a bright, high-quality headlight, the best option is to upgrade your current halogen or incandescent lights with HID headlights. The cost of the upgrade will be worth it in the long run, as HID headlights will offer an increase in lighting output.\n- LED For Reflector\nLEDs are brighter than HIDs for reflectors. However, the installation of upgrades is slightly more difficult. If your car's headlight has reflector-style lighting, it would be best to install LED headlights.\nHID lights are good too - they're just not quite as bright and there might be delays in installation due to the difference in technical specifications.\nProjector Vs Reflector Headlights: The Differences\nIn this article, I’m going to be comparing projector headlights vs reflector headlights. I will look at their features and draw comparisons between the two different types of lights.\nIn most cases, car headlights are either a projector or a reflector. The main difference between these two is that a projector is brighter and has better range, but the reflector has less range and is dimmer. I’m just scratching the surface here.\nLet’s take a deep dive and see the difference between projector and reflector headlights.\nProjector headlights were created to address the need for a headlight that could produce a beam of light that was directed at a specific angle.\nThese headlights are paired with LED or HID technology and can project an intense beam of light that is directed at a certain angle.\nThey are popular among commuters as they offer greater visibility when driving at night or in foggy conditions. Reflectors are affordable and cheaper to make.\nThe main difference between regular and projector headlights is that they cast a wider beam, giving more visibility and safety at night and in foggy conditions.\nSome people find them more difficult to see with than regular lights because they feel like their eyes are being tricked into thinking it's daytime when it shines at them straight.\nAnother difference between both types is that while projector headlights use a single beam, reflector headlights are more spread out. This means that it's easier for drivers using these cars to see other vehicles better at night time because they don’t blind them.\nReflector headlights use light-reflecting material to give cars a wider range of visibility and can be helpful in foggy or other low-light conditions.\nThey allow for better visibility and safety in low-light conditions, though most cars now have this feature as standard. Reflectors are most useful when driving on wet roads with limited visibility.\nProjector headlights are brighter than reflector headlights. They also have more clarity in the light they project onto the road while reflector lights are dimmer and less clear.\nProjectors are headlights with lenses that focus the light while reflectors are headlights without lenses. The main difference between the two is how they work.\nProjectors are known for their color-rich light output. Reflector headlights, on the other hand, are designed to be able to project a wider area of light coverage. Reflectors are also cheaper than projectors, but their light output isn’t as strong.\nProjector lights have a lens that focuses the light onto a single point to make it more concentrated. Reflector lights, on the other hand, radiate their light in all directions at once because there is no lens.\nWhen your headlights are on, you want to be able to see the path in front of you, so it's important to have headlights that can cover a wider angle. Reflector headlights are known for covering a wider angle, but they have more \"light waste\" than projector headlights.\nPros & Cons Of Reflector/Projector Headlights: Comparison\nLet’s take a look at the pros and cons of each to decide whether projector or reflector headlights are for you.\nPros Of Reflector Headlights\n- Reflector headlights have been around for a long time.\n- They are more precise, giving drivers a better view of the road ahead.\n- Help reduce blind spots when driving at night.\n- Cheaper to install and can be used with LEDs.\n- Has more light waste.\nPros Of Projector Headlights\n- Projection headlights add style and personality to the vehicle.\n- Improved visibility in low-light conditions.\n- Can be both daytime and nighttime lamps.\n- They’re great for night driving due to their high-intensity light output.\nProjector Vs. Reflector: Which Is The Best For My Car?\nThis question can be answered by looking at the reflector vs. projector technology. Reflectors are good for foggy or nighttime driving because they are more visible on dark surfaces. Projectors are good for driving in the daytime because they have a wider light beam that is not as affected by obstacles.\nThe best option for your car is depending on what you need it to do. If you want headlights to be visible during the nighttime or in low visibility conditions, then reflector headlights would be the best. If you need better visibility during the daytime, then projector headlights would be your best option.\nProjectors are the most popular type because they make it easier to see at night without blinding other drivers. However, reflectors are best for minimizing glare and providing better visibility in rain or snow.\nProjector headlights are more powerful than reflector headlights, but at the same time, they also cause more glare to other drivers on the road. Reflector headlights can be distracting because their light doesn't flash as projectors do, but their low-light visibility is much better than projectors.\nHeadlights are one of the most important features of a car. They help drivers see and navigate their surroundings, and they also offer safety.\nFor those who want to choose between the projector and the reflector options and want to know which one is better for their car, this article should provide some of the most effective factors to consider before making your decision.\nWhichever option you choose for your car, it should be chosen based on what you need as well as if it’s cost-effective for the particular needs of your car. And that concludes this article on reflector vs projector headlights.","domain":"optical_engineering"}
{"url":"https://madeengineer.com/topic/purpose-of-diode/","date":"2021-10-22T03:13:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585450.39/warc/CC-MAIN-20211022021705-20211022051705-00451.warc.gz","language_score":0.8975648880004883,"token_count":1234,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__104940657","lang":"en","text":"Special Purpose Diodes:\nPN Junction diode cannot be used for all type of applications .Depending upon the type of application the PN junction diode is modified to obtain a new kind of diode.These diodes are known as special purpose diode.Following are the different types of special purpose diodes:\nii.Light Emitting Diode(LED)\nZener diode is a special purpose diode which is designed to operate in the breakdown region.Unlike the other ordinary PN junction diodes, the Zener diode can operate in breakdown region without damage to the junction.For this Zener diode is heavily doped.In the forward biased condition,it’s characterstics is same as that of ordinary PN junction diodes.It is always reverse connected in the circuit.Due to the very steep I-V characterstics in the breakdown region(ideally a straight vertical line) the Zener voltage remains constant over the large change in current.This property of Zener diode is utilized in the design of voltage regulator circuits so as to get stable output voltage.The operation of zener diode as a voltage regulator will be studied in the later section.The voltage at which Zener Breakdown occurs is known as reverse breakdown voltage or in specific Zener Breakdown voltage.It is designated as VZThe symbol of the Zener diode is:\nii.Light Emitting Diode:\nThe special purpose semiconductor diode which emits visible light when forward biased is known as Light Emitthing Diode(LED).The symbol of LED is\nIn the light emitting diode the PN junction is not made from Si or Ge.Instead it is made from the materials like gallium,phosphorous and arsenic.During the forward biased condition the recombination of holes and electrons cause the electron to radiate energy in the form of heat and light which lies in the visible region.\nThe special purpose semiconductor diode in which the reverse current increase when the junction is exposed to light is called as photodiode. The reverse current in the photo diode is directly proportional to the intensity of light falling on the PN junction of the Photo diode.This means greater the intensity of light falling on the junction larger will be the magnitude of the reverse current.The symbol of the photo diode is:\nCharacterstics of Photo Diode:\na.Reverse Current illumination curve:(IRVs E)\nIt is the graph plotted between reverse current IR illumination E of the photo diode.\nb.Reverse voltage-reverse current curve:\nIt is the graph between reverse voltage VR and reverse current IR of the photo diode.\nIV. Varactor Diode:\nThe special purpose semiconductor diode which is designed to exhibit the variable capacitance under the reversed biased condition is known as varicap(Vari for variable and cap for capacitance) or Varactor diode.The symbol of varactor diode is:\nWhen reversed biased,the width of the depletion layer is increased.Here,the positive and negative ions on the either side of depletion region forms a parallel plate capacitor in which capacitance c is the function of width of depletion layer(Wd) which is again the function of reverse voltage VR.\n. i.e C=f(Wd)\nThus,the capacitance of the varactor diode is controlled by the reverse voltage across the varactor diode.\nThe capacitance is given by:\nℰ=Permitivity of semiconductor material\nA=Cross sectional area of semiconductor material\nWd=Width of the depletion layer.\nC=Capacitance of the Varactor diode\nIt is important to note that the variation of capacitance for ordinary PN junction diode is not so appreciable because they are not designed for capacitance.So,we use varactor diode for this purpose in which the variation of capacitance is appreciable as shown in the figure.\nThe Special purpose semiconductor diode which exhibits negative resistance between two values of forward resistance (i.e between peak-point voltage and valley point voltage) is called as Tunnel diode.The symbol of the Tunnel diode is:\nThe Tunnel diode is doped approximately 1000 times the ordinary PN diode.The operation of the Tunnel diode depends upon the tunneling phenomenon.So the diode is called Tunnel diode.\nVi.Schottky Barrier Diode(SBD) or Schottky Diode or Hot carrier diode:\nSchottky Barrier Diode(SBD) or Hot carrier diode is an special purpose semiconductor diode which is formed by bringing the metal in contact with the moderately doped n-type semiconductor material.Here the metal is used instead of p-type material.The resulting metal-semiconductor junction acts like a diode which conduct the current in one direction and acts as an open circuit in opposite direction.The characterstics of Schottky diode is same as that of ordinary PN junction diode with two major exceptions.\na.In the schottky diode the current is conducted entirely by majority carriers(electrons).Thus there is no effect of minority charge stored therby giving the fastest possible switching speed.\nb.The forward voltage drop is less than the ordinary PN junction diode voltage drop.It is around\n0.3V-0.5V whereas for ordinary diode forward voltage drop is around 0.6-0.8V.The symbol of Schottky diode is shown below:\nThe Schottky diode has been extensively used in design of Schottky TTL*.Where the function of Schottky diode is to prevent the transistors to go into the saturation so as to provide the fastest possible switching speed. *TTL stands for Transistor-Transistor Logic which is one of the important logic family of digital circuits.","domain":"optical_engineering"}
{"url":"http://www.mosesmousereye.com/Toric_2.html","date":"2020-01-23T15:01:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250610919.33/warc/CC-MAIN-20200123131001-20200123160001-00372.warc.gz","language_score":0.9151813387870789,"token_count":569,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__120547007","lang":"en","text":"Serving All of Central Ohio\nOffices in Columbus, Canal Winchester and Washington Court House\nServing all of Columbus, Canal Winchester and Washington Court House, OH - All Rights Reserved\nCataract and Cornea Astigmatism Correction\nReferred to as “the emerging standard” and a \"triumphant moment in cataract surgery,\" the AcrySof® IQ Toric IOL corrects for cataracts with pre-existing astigmatism simultaneously by delivering more precise, predictable outcomes and quality distance vision—without the need for glasses following surgery. The AcrySof® IQ Toric IOL may also eliminate, in many cases, the need for limbal relaxing incisions, a technique in which incisions are made at the edge of the cornea to cause it to heal in a more spherical shape. Cornea: The clear, curved surface at the front of the eye through which light enters the eye. Along with the sclera, the cornea provides external protection for the eye. The latest in a long line of IOL innovations from Alcon, the new AcrySof® IQ Toric IOL takes the most trusted platform for precise astigmatism correction and adds the enhanced image quality of an aspheric lens. Aspheric Lens: An intraocular lens (IOL) that is designed to correct spherical aberrations (a change in curvature between the center and edge of your pupil that causes multiple focal points and blurry vision). Like the AcrySof® IQ ReSTOR® IOL, the AcrySof® IQ Toric IOL offers high energy blue light protection, Blue Light: Blue light has a wavelength of about 475 nanometers (nm) on the visible light spectrum. Some laboratory research suggests that high-energy blue light may lead to retinal damage and play a role in the onset of age-related macular degeneration. which shields your eyes not only from the harmful ultraviolet (UV) rays of sunlight but also from artificial lighting such as fluorescent light bulbs—both of which have been linked as possible contributors to cataracts.\nHow IOLs Work\nAn intraocular lens (IOL) is the artificial lens surgeons implant to replace the eye's crystalline lens that must be removed once it becomes cloudy. The main job of the IOL is to focus light onto the back of the eye (or retina), Retina: The transmitter located at the back of your eye that sends the images to your brain. just as a natural, healthy eye lens would.\nFrom here, the light rays are converted into electrical impulses that travel to the brain, where they are then converted into images. If the light isn't focused correctly on the retina, then the brain can't process the images accurately.","domain":"optical_engineering"}
{"url":"https://www.flux3dp.us/products/hexa/","date":"2024-04-16T17:43:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00636.warc.gz","language_score":0.8569942116737366,"token_count":692,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__201231433","lang":"en","text":"Built for professionals\nFLUX HEXA's 60 W CO2 laser cuts and engraves dozens of materials. Its bigger and deeper working area is designed specifically for professional production. High resolution combined with a faster engraving speed will make your laser cutting experience as smooth as possible.\n33% larger working area\nFLUX HEXA offers a working area of 28.74 x 16.14 x 4.92 inch, which is 33% larger than the Beambox Pro. The work area is also 1.57 inch deeper, allowing you to engrave larger objects. The HEXA laser cutter comes equipped with an improved steel honeycomb platform and cone spacers, enhancing its performance and versatility.\n35.43 inch/s high speed engraving\nHEXA’s powerful Cortex M4 core chips let you engrave with a mind-blowing speed of 35.43 inch/s.\n60 W high spec laser tube\nExperience the cutting-edge 60 W CO2 laser tube with high specifications, equipped with a 1.50 inch optical focus lens. With a lifespan of 10,000 hours, this laser tube comes with a 1 year warranty.\n1000 DPI (Add-on)\nEvery detail matters. With this new substantially shrinking laser spot you can achieve a next level resolution of 1.000 DPI.\nEquipped with autofocus\nHEXA’s autofocus function will electronically lower or raise the honeycomb platform to make sure the laser is focused on your material. It can move the elevation platform up to 2.36 inch, depending on the size of the object you want to engrave.\n+-0.39 inch cutting thickness\nWith fascinating laser efficiency and durability, FLUX HEXA perfectly cuts through dozens of materials with the powerful CO2 laser.\nElectric elevation platform\nDouble tap to automatically adjust the optimized platform height.\nBuilt-in cleaning slot\nThe HEXA laser cutter is equipped with a handy cleaning drawer. You won’t need to take out the honeycomb platform to clean up the machine after a cut. Simply pull the cleaning drawer out of your laser cutter, clean it up, and slide it back in.\nSimply take a snapshot before you print. The built-in camera allows you to preview your design on any material. Use our Beam Studio software to preview the work area and position your design exactly where you want.\nEasy to connect\nExperience boundless connection choices.\nIt’s as easy as it gets, integrated hardware and software.\nLearn more about Beam Studio\nCompatible with popular design software\nBeam Studio supports various file formats.\nSVG / PNG / JPG / DXF / PDF / AI\nSafety is never a compromise.\nWe got your back while creating! Safety sensors alert in case of unplanned movement, overheated temperature warning and fire alarm.\nCombining dampers and liftable rear cover, increasing both safety and convenience.","domain":"optical_engineering"}
{"url":"http://www.bushnell-rifle-scopes.com/","date":"2014-04-20T03:10:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00530-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.8826913237571716,"token_count":395,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__52813185","lang":"en","text":"You have no items in your shopping cart.\nBushnell Riflescopes, Bushnell Binoculars, Bushnell Rangefinders, Flashlights and more!\nBushnell® Bushnell Rifle Scopes.com has the lowest priced optics and more on the Internet today! Bushnell is one of the most easily recognizable manufacturers in the business of outdoor optics, the Bushnell name is synonymous with durability, cutting edge technology, and razor-sharp accuracy. Bushnell Rifle Scopes are built tough enough to withstand jostling, shocks, and everyday accidents allowing you the peace of mind that comes with knowing your Bushnell Rifle Scope can stand up to almost anything. They are also fully weatherproof, meaning they’re able to deliver a top notch experience even under adverse weather conditions. Fully multi-coated optics provide optimal light transmission and a true, vibrant image each and every time. You’re not really getting the most out of your rifle until your using it in tandem with a Bushnell Rifle scope.\nBushnell Rifle Scopes.com is one of the America's largest Bushnell Performance Optics Distributors, and we carry complete line of Bushnell products including Bushnell Elite Rifle Scope, Bushnell Trophy Rifle Scope, Bushnell Banner Rifle Scope, Bushnell Legend Rifle Scope and more - Review the Bushnell product map below - We carry it all! Dependable Bushnell Binoculars including Elite, Legend, Trophy, Sportview, Fusion, Excursion, H20, Xtra-Wide and more. Bushnell Spotting Scopes, Bushnell Telescopes, Bushnell Rifle Scopes, Bushnell Red Dot Sights, and of course, Bushnell Laser Rangefinders. Our store also offers the latest and greatest from Bushnell - including Bushnell GPS Navigation Systems and Bushnell Flashlights. All the Bushnell Optics products are offered to you with the lowest prices on the Internet today and discounted shipping rates.","domain":"optical_engineering"}
{"url":"https://primaryeyecare2020.com/eye-care-services/eyeglasses/eyeglasses-onsite-lab/","date":"2019-06-17T04:32:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998376.42/warc/CC-MAIN-20190617043021-20190617065021-00522.warc.gz","language_score":0.8920809626579285,"token_count":463,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__128900323","lang":"en","text":"Custom Optical Lenses for Eyeglasses in Less Time\nPeople have relied on eyeglasses for dependable, convenient vision correction for generation. Today’s optical lenses are available in more varieties than ever to meet the precise needs of patients with a wide range of vision correction concerns. If you need to see an eye doctor for a vision correction evaluation, comprehensive eye exam, or optical lens prescription renewal, contact Primary Eye Care. Dr. Matthew Hoppe and Dr. Gary Christianson are both available to help patients assess their vision correction options.\nGet New Glasses in Less Time\nPrimary Eye Care has an on-site lab for optical lens fabrication so that your new glasses can be prepared on the same day as your appointment. No more waiting weeks for your eyeglasses to be made and shipped. You can begin enjoying clear, crisp vision in a matter of hours thanks to our in-house technicians.\nHaving an on-site lab reduces patient wait time, cuts down on communication errors between doctors and technicians, and provides greater oversight for the entire process. Patients love getting high quality, hand-crafted eyeglasses straight from the lab.\nEyeglasses for Every Member of the Family\nIn addition to our in-house lab, we also offer an extensive selection of beautiful frames at a wide range of price points to fit any budget. We carry frames for children, teens, and adults. Primary Eye Care stocks eyeglass frames from many popular brands, including:\n- Dolce & Gabana\n- Anna Klein\n- Ralph Lauren\n- Dakota Smith\n- Ray Ban\nOptical lenses are available in many different varieties, too. Looking for safety glasses or lenses with ultra violet coatings? Need lenses with anti-glare for work? Primary Eye Care is your source for these and many other lens varieties, including anti-fog, bifocals, progressive, free form, digital, and extra thin. Looking for something special? Just ask a member of our team.\nSchedule an Eye Exam Today\nContact Primary Eye Care by calling (320) 587-4744 (Hutchinson) or (320) 693-9333 (Litchfield) to schedule an appointment with Dr. Hoppe or Dr. Christianson today.","domain":"optical_engineering"}
{"url":"https://buildersandthings.com.ng/product/bosch-nbn-498-11p-dinion2x-day-night-ip-security-camera-cctv/","date":"2023-02-02T15:25:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500028.12/warc/CC-MAIN-20230202133541-20230202163541-00783.warc.gz","language_score":0.8682206869125366,"token_count":201,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__240931202","lang":"en","text":"Bosch NBN-498-11P 1/3-inch Progressive scan, H.264, 2X DSP, WDR, PAL, 50 Hz, PoE, microSD slot.\nDinion2X Day/Night IP cameras are progressive scan CCD cameras. They can quad-stream video simultaneously – on two H.264 streams, an I-frame recording stream, and an M-JPEG stream. Equipped with 20-bit DSP with 2Xdynamic, they have a wide dynamic range for a sharper, more detailed image with outstanding color reproduction.\nFeatures such as multicasting, internet streaming and iSCSI recording are fully supported. Dinion2X Day/ Night IP cameras have built-in video motion detection and additional processing power for video content analysis systems.\nSupporting the award-winning Dinion2X digital imaging technology, they provide proven, dependable service for the most demanding security and surveillance requirements, day or night.","domain":"optical_engineering"}
{"url":"http://motozone.nz/oakley-latch-sunglasses-matte-brown-tortoise-with-prizm-black-lens","date":"2021-10-21T17:53:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585439.59/warc/CC-MAIN-20211021164535-20211021194535-00388.warc.gz","language_score":0.8789352178573608,"token_count":183,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__232044360","lang":"en","text":"As Oakley Sunglasses are factory sealed, we are unable to accept returns or sell them on a sale-or-return basis\nA creative collaboration from the world of skateboarding, this design inspired by influential athletes is shaped with a classic keyhole bridge and the curves of rounded lens orbitals, and we engineered it with the convenience of an interior kick-up feature that lets you clip it to your shirt.\nHigh Definition Optics®: High Definition Optics® (HDO®) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity, and impact resistance.\nPRIZM™: Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.","domain":"optical_engineering"}
{"url":"https://www.homesciencetools.com/product/home-binocular-led-microscope/","date":"2022-05-24T09:48:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662570051.62/warc/CC-MAIN-20220524075341-20220524105341-00228.warc.gz","language_score":0.9191232323646545,"token_count":1392,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__251864291","lang":"en","text":"This durable and comfortable binocular microscope features LED illumination & lighting. The binocular head rotates 360° and locks into any viewing position. Unlike a monocular microscope, a binocular microscope's dual diopters provide greater image depth perception and allow you to correct for differences between your eyes. The sliding interpupillary adjustment gives each user a custom fit.\nThis deluxe compound microscope comes with a fourth 100x retractable oil immersion objective for 1000x magnification. It includes a 115 x 125 mm stage with an integrated 20 x 60 mm mechanical stage with low-position coaxial x-y controls. Optics include two widefield 10x eyepieces with dual diopters on a 360° rotating head with 4, 10, 40x and 100x (oil) achromatic DIN parfocalled and parcentered objectives that provide high-quality magnification of 40, 100, 400 and 1000x.\nThis is a light microscope that features precision fine and coarse focusing with a slip clutch, has a stage stop, a long-life, a cool & bright, adjustable LED illumination, and a metal frame. Its field of view is 4.5 mm at 40x. This binocular microscope includes operating instructions, a dust cover, a blue filter & immersion oil. It also come with a spare LED light bulb to ensure that you always have a high-quality LED light source for your bright-field microscopy studies.\nThis student microscope is 15\" tall and represents high-quality from top to bottom: from its binocular viewing head, eyepieces & nosepiece, to its objective lenses & phase contrast, to its mechanical stage, light source, overall optical system & beyond. Use this compound microscope to reduce eye strain while you observe the small objects & living things that you place on your microscope slides.\nThis Home Science Tools LED Binocular Microscope comes with a lifetime warranty - because you deserve to make a purchasing decision you can trust.\nWhen comparison shopping for a compound or stereo microscope, you'll often find nearly identical specifications across different brands. But what you can't tell from the specifications is the microscope's overall quality and reliability. The market is flooded with poorly manufactured, low-cost microscopes that seem like a bargain... until you use them.\nOur high-quality Home Microscope is different. First, it's built to our exacting standards. Next, our skillful quality control specialists inspect and adjust every Home Microscope right here in our U.S. facility, ensuring it works perfectly before we ship it to you. Finally, we back our commitment with a lifetime warranty on this Home Science Tools microscope. While there are added costs to selling microscopes this way, we think it's worth it to offer you an enjoyable-to-use, trouble-free, light microscope that will last a lifetime - whether for your high school classroom or your home.\nDon't just take our word for it - see what our customers have to say in the product customer reviews below. This compound microscope may very well be the perfect microscope for you or the science enthusiast in your life!\nAbout the Home Binocular LED Microscope\nQuality. The quality of the Home Binocular LED Microscope is exceptional. These high power student microscopes are built to our own unique specifications for safety, mechanical reliability, optical quality, and overall usability. Then each microscope is inspected and tuned by our experienced microscope technician at our US facility before the microscope is shipped to you. This process ensures you'll receive a high-quality, reliable instrument that is working perfectly - from its eyepieces, to its objective lenses, to its LED illumination & beyond.\nLighting. The Home Binocular LED Microscope has LED lighting, which is a cooler, brighter illumination than the standard tungsten that most scopes at similar prices have. With variable-intensity LED illumination you'll have more flexibility for viewing greater specimen variety.\nLifetime Warranty. Unlike some other educational microscopes you might see online, Home Science Tools guarantees that your Home Microscope will be free from defects in material and workmanship under normal use for the life of the instrument – so if you have any problems, we are happy to repair or replace your microscope immediately.\nValue. The Home Binocular LED Microscope was developed with students and homeschool families in mind. You get an easy and enjoyable to use, trouble-free microscope that will last a lifetime. It is possible to find cheaper microscopes, but we are confident that you won't find better value for your money.\nTake incredible close-up pictures with your microscope!Want to turn this binocular microscope into a digital microscope? Get a great deal on our excellent, easy-to-use 2.0 Megapixel Digital Camera. With it, you'll be able to take high-clarity images of everything you see under your scope!\nMORE INFORMATION BOX\n- 10x wide-field inclined eyepieces with dual diopters, 18 mm exit pupil distance and interpupillary adjustment for a custom fit\n- Binocular 45° inclined head with 360° rotation for convenient viewing\n- 4x (0.10 NA), 10x (0.25 NA), 40xR (0.65 NA), and 100xR (1.25 NA) objectives meet DIN standards and are achromatic, parcentered, and parfocaled to prevent color distortion and remain in focus when you switch magnification\n- 40x objective is retractable; 100x objective is oil retractable (order extra immersion oil separately)\n- Separate fine and coarse focusing with a slip clutch to prevent damage to slides or optics\n- Sturdy all-metal rack-and-pinion focusing\n- 115 x 125 mm stage with integrated 20 x 60 mm mechanical stage with low-position coaxial x-y controls\n- 1.25 N.A. Abbe condenser with spiral focusing\n- Iris diaphragm and swing-out filter holder with blue filter\n- Cool, bright, adjustable LED illumination with 60,000-hour bulb life\n- Field of view is 4.5 mm at 40x\n- Rugged aluminum frame, stands 15\" tall\n- Includes operating instructions, a dust cover, blue filter, immersion oil, and a spare light bulb\n- A replacement LED light bulb is available\n- Also available as our Advanced Binocular Microscope or as a 5.0 megapixel digital camera\nMy Science Perks is FREE! Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships!Learn More","domain":"optical_engineering"}
{"url":"http://twostore.co.uk/product/490/Canon-2418B006-Kofax-CGA-Board-for-DR-X10C&search=true","date":"2017-08-17T15:21:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886103579.21/warc/CC-MAIN-20170817151157-20170817171157-00010.warc.gz","language_score":0.7176705598831177,"token_count":194,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__84410229","lang":"en","text":"Canon 2418B006 Kofax CGA Board for DR-X10C\nPrice: £1,549.00 (excl VAT)\nPrice: £1,858.80 (incl VAT)\nCanon 2418B006 Kofax CGA Board for DR-X10C, for use with the Canon DR-X10C document scanner.\n\"Canon is please to introduce the Kofax CGA board option which enables the imageFORMULA DR-X10C to scan at the highest possible speed for Kofax Virtual Rescan (VRS), performing the image processing at the hardware instead of teh software level. Kofax VRS provides the ability to analyse documents automatically to determine the best method for image processing.\"\nFor more information on Kofax data capture software, please visit http://www.twofold.co.uk/consulting/kofax","domain":"optical_engineering"}
{"url":"http://japanbullet.com/tag/sony/Page-3","date":"2023-12-04T04:17:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100523.4/warc/CC-MAIN-20231204020432-20231204050432-00503.warc.gz","language_score":0.9571557641029358,"token_count":145,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__183998915","lang":"en","text":"Want to get a full frame mirrorless camera? Unfortunately, full frame mirrorless cameras aren’t exactly cheap and Sony’s A7 is probably the cheapest you can expect from the company. However, that might not necessarily be the case in the future, at least according to Sony Alpha Rumors.\nThe publication is claiming that come September, Sony is expected to announce an entry-level full frame mirrorless camera that will be part of its mirrorless lineup. The naming of this camera is unclear, but it has been speculated to be called either the A5 or the A6, which kind of makes sense given that Sony’s mirrorless lineup consists of the A7 and A9 series.","domain":"optical_engineering"}
{"url":"http://www.aicaenergy.com/my/store/item/21215125152/","date":"2019-07-18T19:44:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525793.19/warc/CC-MAIN-20190718190635-20190718212635-00175.warc.gz","language_score":0.9250639081001282,"token_count":103,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__91443904","lang":"en","text":"Eco-FX LED Panel light is the ideal replacement for traditional T8 fluorescent trough lights. Eco-FX Panel light creates uniform light, which conventional light never achieved\nEco-FX Ultra Slim LED Panel Light uses the latest LED chip technology as a light source, which is stable, long life, with no UV & IR emission. The anodised aluminium frame is stylish and fashionable with everlasting colour. It is powered by a low voltage constant current driver, which is safe, energy saving and long life.","domain":"optical_engineering"}
{"url":"https://specs2go.co.uk/about-us/","date":"2022-05-25T01:14:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662577757.82/warc/CC-MAIN-20220524233716-20220525023716-00638.warc.gz","language_score":0.9349416494369507,"token_count":196,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__128247846","lang":"en","text":"At Specs2Go we are committed to the production and dispensing of high quality prescription glasses. Our physical presence began in 1984 with the aim to provide low cost, high quality eyewear for our customers. Over the years, fashion and technology in the optical world have changed dramatically, however, we have maintained our low prices and high quality to ensure our customers’ continued satisfaction and loyalty.\nIn 2013 we launched our online e-commerce store with a cutting edge website developed around the end-user to provide a fast and effective online shopping experience.\nWe Own Our Labs\nMany eyewear stores send your glasses away to be made with your prescription; however, we own our lab and together with our opticians and technicians we’re able to ensure high quality prescription glasses at a low cost. As we hold a large range of lenses and frames in stock we can even dispatch orders within 48hrs – something you’re unlikely to find elsewhere.","domain":"optical_engineering"}
{"url":"http://www.neptec.com/technology/space/tridar.php","date":"2013-05-20T07:30:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698554957/warc/CC-MAIN-20130516100234-00089-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.891930103302002,"token_count":524,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__51185523","lang":"en","text":"Neptec's TriDAR combines the best features of the space qualified, near field LCS (based on triangulation) with a long-range Time-of-Flight (or LiDAR) system.\nTriDAR operates at distances ranging from 0.5 metres to over 2000 metres without sacrificing speed or precision at either end of the range.\nNeptec's 3D Automated Rendezvous and Docking Sensor (AR&D) system is based on two Neptec innovations: the TriDAR3D sensor and Neptec's 3D Intelligence (3Di) software toolkit. This combination of hardware and software creates a dynamic, powerful and resourceful system which enables efficient and reliable docking without the need for traditional target arrays.\nTriDAR combines a short-range, high precision autosynchronous triangulation sensor with a mid to long-range Time-of-Flight LiDAR sensor in the same unit. The two sensors share the same optical path and control electronics resulting in a compact package with a multi-range, multi-role capability.\nNeptec's 3Di software reduces the amount of data collected and processes the data efficiently on the sensor head, drastically reducing the computational overhead of working in 3D. The result is six degrees-of-freedom (6DOF) real-time tracking and pose estimation.\nTriDAR made its inaugural demonstration space flight onboard Space Shuttle Discovery on the STS-128 mission, launched on August 28, 2009. On STS-128, TriDAR provided astronauts with real-time guidance information during rendezvous and docking with the International Space Station (ISS). It automatically acquired and tracked the ISS using only knowledge about its shape. This marked the first time a 3D sensor based “targetless” tracking vision system was used in space.\nTriDAR was again carried onboard Space Shuttle Discovery during the STS-131 mission to the International Space Station. The TriDAR tracked the ISS during both rendezvous/docking operations as well as undock/flyaround operations. This marks the first demonstration of real-time embedded 6DOF tracking of a non-cooperative tumbling target in space. Finally, TriDAR completed its test demonstrations onboard Space Shuttle Atlantis on the last shuttle mission STS-135. During the mission, TriDAR repeated its tracking demonstration with improved performance from hardware and software upgrades. Also, to mark this historic last shuttle mission, TriDAR acquired 3D and thermal IR imagery of the last shuttle flyaround around the completed International Space Station.","domain":"optical_engineering"}
{"url":"http://apo-optic.com/2016/02/05/choosing-the-right-laser-safety-glasses-for-your-needs/","date":"2019-05-25T13:08:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232258058.61/warc/CC-MAIN-20190525124751-20190525150751-00550.warc.gz","language_score":0.9624196290969849,"token_count":494,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__19531401","lang":"en","text":"No matter what industry you work in, if your work involves laser technology, you need to put safety first. One of the most important things to invest in is a quality pair of laser safety glasses. If you've never had to shop for these glasses before, you may not know what you should be looking for. Here are a few of the things you should consider as you shop for a pair.\nWhile this may seem like a minor concern, comfort is actually very important. If you're uncomfortable in the frames or they don't fit right, you're not going to get the same level of protection or they may not stay in place. Make sure that your frames fit your face properly, feel comfortable and are secure when you wear them. That way, you're more likely to keep them on and in the right position to protect your eyes.\nLaser safety glasses are designed to provide you with years of benefit, and you'll need to have the confidence that they're going to do just that. For the best chance of getting a long lifespan from your glasses, it's in your best interest to invest more up front in a high quality lens and frame. While it may cost you more up front, it will likely save you more over time if you don't have to invest in a new pair every couple of years.\nBroad Field of View\nAny kind of eyewear can restrict your peripheral vision to some extent. While you're likely to be looking directly where you're working, you don't want to lose any more peripheral vision than necessary. Limited peripheral vision can interfere with your own orientation and comfort while you're working, which may affect your quality of work. Make sure that the frames you choose don't completely obstruct your ability to use your peripheral vision while you're wearing them.\nLaser light comes in many different wavelengths, and each one can affect materials differently. In order for you to get the most from your laser safety glasses, you need to be sure that the lenses protect against the wavelengths that your laser beams contain. Check your laser wavelength ratings before you start shopping for glasses.\nThe optical density rating of the lenses defines the factor by which the laser beam power is reduced when looking through the lens. You'll want the highest optical density you can get for your lenses to best protect your eyes.\nWith the information presented here, you'll be better able to pick the right pair of laser safety glasses for your needs.Share","domain":"optical_engineering"}
{"url":"https://www.bay15.com/collections/gun-care-accessories/products/xb30-compact-crossbow-scope-1-5-6x36-ir-wa-30mm-sr-450fps","date":"2023-11-28T19:20:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099942.90/warc/CC-MAIN-20231128183116-20231128213116-00351.warc.gz","language_score":0.9000459313392639,"token_count":466,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__132036586","lang":"en","text":"Hawke is a world leader in crossbow optics, with a reputation for innovative reticle designs to make you a better shot. All Hawke XB Compact crossbow scopes are innovative, accurate and reliable. Vari-speed technology allows you to match the reticle to any bow speed for unsurpassed accuracy, simply by turning the speed selector ring.\nWaterproof and shockproof with nitrogen-purged optics to prevent fogging and misting, the scope is designed to withstand the rigors of crossbows. The chassis is machined from a single piece of lightweight, aircraft-grade aluminum for maximum strength and stability.\nWIDE ANGLE OPTICAL SYSTEM\nModel 12 226 the XB30 COMPACT 1.5-6×36 SR has a wide-angle optical system for a wide field of view and a 30mm mono-tube chassis for superior strength. It comes with a glass-etched illuminated XB30 COMPACT SR reticle, suitable for bow speeds from 250 fps through to 450 fps. It is designed with aim points from 20 - 100 yards with 5-yard marks. 10-yard aim points incorporate windage bars and dots to compensate for 10 mph and 20 mph crosswinds. For accurate reticle calibration, it has a locking speed adjuster.\nA rheostat on the saddle offers 5 levels of brightness of red or green illumination. Quick and accurate zero is achieved with crossbow specific, positive click ½ MOA turrets, protected from the elements with a sealed turret cap.\n- CROSSBOW SCOPE with 14 layer fully multicoated optics and Wide Angle optical system for exceptional clarity and low light performance\n- EXCEPTIONALLY ROBUST with 30mm monotube chassis designed to withstand the heavy crossbow recoil\n- SPEED ADJUSTER matches the bow speed from 250 fps to 475 fps for accurate reticle calibration\n- ILLUMINATED GLASS ETCHED XB30 COMPACT SR RETICLE with aim points from 20 - 100 yards with 5 yard marks. 10 yard aim points incorporate windage bars and dots to compensate for 10 mph and 20 mph cross winds.\nPayment & Security\nYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.","domain":"optical_engineering"}
{"url":"https://eue.siherp.com/2019/07/equipment-for-differential-leveling.html","date":"2020-07-12T02:01:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657129517.82/warc/CC-MAIN-20200712015556-20200712045556-00517.warc.gz","language_score":0.9348452091217041,"token_count":1278,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__159963384","lang":"en","text":"Category of Levels\nInstruments used for differential leveling can be classified into four categories: dumpy levels, tilting levels, automatic levels, and digital levels. Although each differs somewhat in design, all have two common components: (1) a telescope to create a line of sight and enable a reading to be taken on a graduated rod and (2) a system to orient the line of sight in a horizontal plane. Dumpy and tilting levels use level vials to orient their lines of sight, while automatic levels employ automatic compensators. Digital levels also employ automatic compensators, but use bar-coded rods for automated digital readings. Automatic levels are the type most commonly employed today, although tilting levels are still used especially on projects requiring very precise work. Digital levels are rapidly gaining prominence. These three types of levels are described in the sections that follow.\nDumpy levels are rarely used today, having been replaced by other newer types. They are discussed in Appendix A. Hand levels, although not commonly used for differential leveling, have many special uses where rough elevation differences over short distances are needed. They are also discussed in this chapter. Total station instruments can also be used for differential leveling. These instruments\nand their uses are described in Section 8.18.\nElectronic laser levels that transmit beams of either visible laser or invisible infrared light are another category of leveling instruments. They are not commonly employed in differential leveling, but are used extensively for establishing elevations on construction projects.\nThe telescopes of leveling instruments define the line of sight and magnify the view of a graduated rod against a reference reticle, thereby enabling accurate readings to be obtained. The components of a telescope are mounted in a cylindrical tube. Its four main components are the objective lens, negative lens, reticle, and eyepiece. Two of these parts, the objective lens and eyepiece, are external to the instrument, and are shown on the automatic level illustrated in Figure 4.9.\n- Objective Lens. This compound lens, securely mounted in the tube’s object end, has its optical axis reasonably concentric with the tube axis. Its main function is to gather incoming light rays and direct them toward the negative focusing lens.\n- Negative Lens. The negative lens is located between the objective lens and reticle, and mounted so its optical axis coincides with that of the objective lens. Its function is to focus rays of light that pass through the objective lens onto the reticle plane. During focusing, the negative lens slides back and forth along the axis of the tube.\n- Reticle. The reticle consists in a pair of perpendicular reference lines (usually called crosshairs) mounted at the principal focus of the objective optical system. The point of intersection of the crosshairs, together with the optical center of the objective system, forms the so-called line of sight, also sometimes called the line of collimation. The crosshairs are fine lines etched on a thin round glass plate. The glass plate is held in place in the main cylindrical tube by two pairs of opposing screws, which are located at right angles to each other to facilitate adjusting the line of sight. Two additional lines parallel to and equidistant from the primary lines are commonly added to reticles for special purposes such as for three-wire leveling (see Section 5.8) and for stadia (see Section 5.4).\nLevel vials are used to orient many different surveying instruments with respect to the direction of gravity. There are two basic types: the tube vial and the circular or so-called “bull’s-eye” version. Tube vials are used on tilting levels (and also on the older dumpy levels) to precisely orient the line of sight horizontal prior to making rod readings. Bull’s-eye vials are also used on tilting levels, and on automatic levels for quick, rough leveling, after which precise final leveling occurs.\nThe principles of both types of vials are identical. A tube level is a glass tube manufactured so that its upper inside surface precisely conforms to an arc of a given radius (see Figure 4.10).The tube is sealed at both ends, and except for a small air bubble, it is filled with a sensitive liquid.\nThe liquid must be nonfreezing, quick acting, and maintain a bubble of relatively stable length for normal temperature variations. Purified synthetic alcohol is generally used. As the tube is tilted, the bubble moves, always to the highest point in the tube because air is lighter than the liquid. Uniformly spaced graduations etched on the tube’s exterior surface, and spaced 2 mm apart, locate the bubble’s relative position.The axis of the level vial is an imaginary longitudinal line tangent to the upper inside surface at its midpoint. When the bubble is centered in its run, the axis should be a horizontal line, as in Figure 4.10. For a leveling instrument that uses a level vial, if it is in proper adjustment, its line of sight is parallel to its level vial axis. Thus by centering the bubble, the line of sight is made horizontal.\nIts radius of curvature, established in manufacture, determines the sensitivity of a level vial; the larger the radius, the more sensitive a bubble. A highly sensitive bubble, necessary for precise work, may be a handicap in rough surveys because more time is required to center it. A properly designed level has a vial sensitivity correlated with the resolving power (resolution) of its telescope. A slight movement of the bubble should be accompanied by a small but discernible change in the observed rod reading at a distance of about 200 ft. Sensitivity of a level vial is expressed in two ways: (1) the angle, in seconds, subtended by one division on the scale and (2) the radius of the tube’s curvature. If one division subtends an angle of at the center, it is called a bubble. A bubble on a vial with 2-mm division spacings has a radius of approximately 68 ft.4 The sensitivity of level vials on most tilting levels (and the older dumpy levels) ranges from approximately 20\" to 40\".","domain":"optical_engineering"}
{"url":"https://www.scholarlypages.org/archive.php?jid=photonics-and-optics","date":"2019-11-17T23:11:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496669352.5/warc/CC-MAIN-20191117215823-20191118003823-00248.warc.gz","language_score":0.9114518761634827,"token_count":697,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__25956773","lang":"en","text":"Home / Browse Journals & Books / Recent Advances in Photonics and Optics / Archive\nRESEARCH ANALYST Volume 2 Issue 1\nAbstract: The possible existence of superluminal particles, which are forbidden by well-known laws of physics, has been studied by many physicists. Some of them confirmed the superluminal speed by their experiments. By using Klein-Gordon wave equation for photons, the author shows that the photon travels at a superluminal speed in an electromagnetic near field of the source and they reduce to the speed of light as they propagate into the far field.\n| | |\nReview Article Volume 2 Issue 1\nAbstract: The new multi-pass configuration of side-pumped Nd:YAG solar laser for enhancement of conversion efficiency is studied by computer simulation of the laser system. The active medium in the form of a slab providing effective heat dissipation during side pumping by concentrated solar radiation at the focus of a parabolic concentrator with a diameter of 1 m is considered. It is shown that multi-pass configuration doubles the output laser power.\nAbstract: Simple approach for achieving high efficiency of solar pumped laser performance on the base of alexandrite active medium is proposed. Performance analyses have been conducted by simulating solar pumped alexandrite laser with core-doped parabolic shape composite active medium, using ray-tracing Monte-Carlo techniques. It is shown that the overall efficiency of alexandrite laser can be about 15% which is much higher than that of existing solar pumped lasers.\nOriginal Article Volume 2 Issue 1\nAbstract: As soon as pairs of down-converted frequency photons are generated in a nonlinear crystal, the photons interact, individually, with the linear susceptibility formed by the electric dipoles in any dielectric medium. As a result, the quantum Rayleigh conversion of photons absorbs one photon and emits spontaneously another photon in a random direction and with a random state of polarization. However, the statistical results of the expectation values associated with entangled qubits of polarized photons are exactly reproduced with independent and individual qubits. The possibility of quantum non-locality properties being linked to entangled photons over long distances can easily be ruled out because of the immediate physical annihilation of the entangled photons propagating in a dielectric medium.\nReview Article Volume 1 Issue 1\nAbstract: The optogenetic is a biological technique that involves the use of light to control cells in living tissue, typically neurons that have been genetically modified to express light-sensitive ion channels. In this paper, we exploit the use of the optogenetic to create a novel approach for water treatment and purification using a nano charged dielectric polymeric beads. In this approach, the beads will be coated with a photosensitive protein called channelrhodopsin.\nAbstract: In this paper, we develop dielectric micro-optical sensors based on Whispering Gallery Mode Phenomenon (WGM) for monitoring of chemical impurities in contaminated drinking water environments. Some sort of chemical impurities could be toxic and carcinogenic to humans and animals.\nREVIEW ARTICLE Volume 1 Issue 1\nAbstract: This paper presents the estimation of bit error ratio (BER) from error vector magnitude (EVM) for the quadrature phase shift keying (QPSK) modulation format with the Viterbi & Viterbi algorithm and differential decoding to compensate for laser phase noise.","domain":"optical_engineering"}
{"url":"https://nms-int.com/about-us","date":"2024-04-25T05:07:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00324.warc.gz","language_score":0.9635776877403259,"token_count":195,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__185798865","lang":"en","text":"NMS s.r.o. is world leader in the field of non-contact 3D automated measurements solutions. Although we are based in Slovakia, our clients are manufacturing companies from all over the World. Our product portfolio includes innovative solutions tailored to customer's need from various industries, as well as stand-alone 3D measurement devices, measurement services, consultancy and staff training, or installation and maintenance. We work with the latest technologies and high-quality sensors from manufacturers with was experience in this field and transform them into innovative 3D measurement systems for industrial applications. NMS was established in 1999 and since then we have acquired valuable know-how in the field of non-contact 3D metrology and automation and with our professional team of experienced professionals we are just the right partner for any manufacturing company. Our customers come from various industries, including automotive, engineering, aviation, and power industry.","domain":"optical_engineering"}
{"url":"https://synergycap1.com/dutch-researchers-pull-almost-43gbit-per-second-over-a-ray-of-light/","date":"2021-06-14T20:51:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487613453.9/warc/CC-MAIN-20210614201339-20210614231339-00108.warc.gz","language_score":0.9405044317245483,"token_count":379,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__163705689","lang":"en","text":"An experiment by scholars at the Eindhoven University of Technology in the Netherlands has demonstrated a wireless network based on infrared rays that can move data at speeds of 42.8Gbps.\nThe system, which is the work of new Ph.D recipient Joanne Oh, uses light “antennas,” which don’t have any moving parts, translating signals from a fiber-optic cable into infrared light and beaming them to receivers in the same room, which can be tracked by their return signals – when a user’s device moves out of one beam’s area of function, another light antenna can take over.\nThe concept of “Li-Fi,” or the use of light signals to transmit information wirelessly, is not new, but Oh’s low-maintenance infrared endpoints are novel. And while more work must be done on the central fiber-optic network necessary to run this system, the university says that it’ll be usable with common endpoints like laptops and tablets.\nThe real advancement is the use of a pair of gratings in each antenna, which are designed to “radiate light rays of different wavelengths at different angles,” according to the university. This means that the system merely needs to change the wavelength slightly to alter the course of the beam of infrared light and track its assigned endpoint.\nLike most novel photonic technology, Oh’s system isn’t going to be commercially available for a long time – the university’s announcement says that it’ll be at least five years. But it could hold some promise as a short-range solution for dense concentrations of endpoints.\nThis story, “Dutch researchers pull almost 43Gbit per second over a ray of light” was originally published by Network World.","domain":"optical_engineering"}
{"url":"http://www.thespectaclefactory.com/","date":"2017-11-24T00:15:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934807044.45/warc/CC-MAIN-20171123233821-20171124013821-00285.warc.gz","language_score":0.9012953042984009,"token_count":218,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__172688892","lang":"en","text":"The Future of Optics\nCheck out our latest vlog where we travel to Berlin discover the latest tech courtesy of ZEISS. We look at Virtual Reality, Augmented Reality, new spectacle lenses and new measuring equipment, including a device which allows us to 3D-print you a pair of bespoke glasses.\nLooking for an optician or optometrist in Preston, Lancashire? We have a huge range of glasses, spectacles and sunglasses.\nBy understanding you, we find the right eyewear for your lifestyle\nSeeing is Believing\nUsing the latest technologies, were able to give you the best vision possible.\nWe guarantee the best products and service at the best prices - guaranteed.\nWhat our customer say\nWant to enjoy the process of choosing your glasses? Then we're the place for you\nA company where technology, education, service\nand eyewear are as individual as you are\n90% of prescriptions can be ready within an hour\n98% of our customers would recommend us\n50% longer eye tests than the industry average","domain":"optical_engineering"}
{"url":"http://itbundle.net/archives/210/","date":"2023-03-28T06:25:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948765.13/warc/CC-MAIN-20230328042424-20230328072424-00122.warc.gz","language_score":0.9284833669662476,"token_count":873,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__255692979","lang":"en","text":"Optical fiber as a medium got many virtues. Unlike copper media (e.g cat6e), WiFi (e.g 2,4 GHz, 5 GHz or Bluetooth) optical fiber is not exposed to EMI (electromagnetic pulse), interferences, signal interceptions. Usually is not limited by weather conditions, lay of the land (wifi), short length of a segment (cat5e). But even so sophisticated medium as optical fiber has got downsides caused by laws of physics.\nYou can’t cheat physical laws especially if you deal with optical fibre technology, then you have to rely on physical laws which describe how photon of light (the smallest part of the light) behaves in the glass (the silica to be more precise). I’ve collected all unfavourable phenomena and described them precisely but using plain language (believe me I tried hard).\nAttenuation means a loss of optical power. Te attenuation of optical fiber is expressed by the coefficient which is defined as the loss of fiber per unit length in dB/km. Fiber attenuation varies significantly with the wavelength of light. The lower the wavelength is, the higher attenuation we get. The attenuation of the optical fiber is a result of two factors : Absorption and Scattering\nAbsorption is caused by the absorption of the light and conversion into heat by molecules in the glass. The most involved factor in absorption are OH- ions (just the water) which are just impurities which modify the refractive index of the glass. The smallest affects of OH- in silica glass has been noticed in transmission windows 850nm, 1300nm, and 1550nm. That’s the reason why these frequencies are being used in optical fiber technology. Unfortunately impurities are inevitable, manufacturers have only limited influence on this factor and can prevent partly by keeping high standards of production and by using high quality of raw materials.\nScattering occurs when light collides with individual atoms in the glass and is reflected in accidental directions. Light rays which are scattered with different angles outside the numerical aperture of the fiber will be absorbed by a cladding or transmitted back, toward the source (reverse reflection)\nTo find out how dispersion affects modes in optical fiber, first we have to recall in short how is build the core of optical fiber. We distinguish two types of multimode fibers step index and graded index. In step index fiber, the core has got the same density with the same index of refraction alongside whole fiber, in graded index fiber the core is not homogenic and is build from “layers”, every “layer” is doped differently, what means that index of refraction changes steadily from the axis of the core to the border with cladding. The work of both solutions you can see below on the graphic. In step index fiber, modes travel incoherently, in graded index fiber fluently. In single mode fiber dispersion doesn’t exists.\nEvery impulse of the light consists of many modes, almost each of them moves on different lane accordingly what I mentioned above . In graded index fiber modal dispersion has been reduced significantly, but in step index fiber it is a huge problem. In single mode fiber modal dispersion takes place in narrow scope and only in very long links.\nChromatic dispersion is linked with the color of the light and broad of spectral output. Light travels at different speeds accordingly to its color and therefore is refracted with different angles in different doped layers. Besides the LED light has much more broad of spectral output than laser, which concentrates most of its light in narrow spectral range. These two factors cause that the components of light (modes) travel in optical fiber with different speeds and on different paths.\nPolarisation Mode Dispersion\nThis dispersion occurs because many external factors like wind, temperature, tension, stretching, which affect optic fiber. These factors cause that optic fiber is getting oval instead of staying circular. What influence does it have on modes ? Modes travel with different speed . PMD takes place in multimode and singlemode optical fibers and is very hard to diagnose, test and measure.","domain":"optical_engineering"}
{"url":"http://andyrmfw000.amoblog.com/2-aspects-you-do-definitely-not-know-dealing-with-lasik-eye-surgical-treatment-8570743","date":"2018-12-14T11:16:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376825512.37/warc/CC-MAIN-20181214092734-20181214114234-00392.warc.gz","language_score":0.9584652781486511,"token_count":889,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__146249524","lang":"en","text":"2 Aspects You Do Definitely Not Know Dealing With LASIK Eye Surgical TreatmentThe eye can be taken a look at with relative ease as to both its function and its structure. A functional examination consists of the capability to move in the orbit and the response of the pupil to light and accommodation.\nThe function of the eye might be evaluated in numerous ways. The client may be asked to determine illuminated letter or things of varying sizes on exactly what is referred to as the Snellen chart.\nAlternatively, the examination of the structural part of the eye might be made in several methods. Tension within the eyeball is determined by a \"tonometer.\" In particular illness, specifically in glaucoma, the tension in the eyeball is increased significantly.\nIt needs to be well kept in mind that a client with an eye problem may have other issues. Frequently other physical conditions are main and affect the eye as a consequence. The appearance of the eye can inform the physician and the client to difficulties in some disruptions of other parts of the body even before other signs provide themselves.\nSubsequently, one's dependence on sight is highlighted when one deals with a possible or temporary irreversible loss of this crucial sense. When restorative steps are sought, certain types of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some people are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to motivate decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this kind imp source of surgery, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that people should understand. Most likely, the main reason this type of eye surgical treatment has ended up being well accepted is since many of its cases had actually been successful.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is one of the most delicate parts of the eye, many people say that the operation can be extremely dangerous.\nIn other words, a easy mistake could nearly trigger an individual's lifetime loss of sight. pop over to this web-site Thus, it is very important to consider numerous aspects before choosing whether LASIK eye surgery is the ideal corrective step one needs to go through.\n2. It is not a ideal treatment\nLASIK eye surgical treatment may correct your vision but it does not always imply that it can give you a ideal vision. Even if analytical reports show that 70% of the clients might have 20/20 vision, this does not always suggest they have perfect vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgery the way the majority of people see it\nOn the other hand, the examination of the structural part of the eye may be made in numerous methods. It must be well remembered that a client with an eye issue might have other problems. Frequently other physical conditions are main and affect the eye as a repercussion. The appearance of the eye can alert the doctor and the patient to troubles in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nLike its concrete counterpart, LASIK my company eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://fishcamp.com/starfish_faq.html","date":"2013-06-20T00:58:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368709947846/warc/CC-MAIN-20130516131227-00030-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9482963681221008,"token_count":1282,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__149945718","lang":"en","text":"How did the Starfish Camera project get started?\nThe project started out with the goal of trying to leverage CMOS image sensors for the astrophotography market. All of the other manufacturers addressing this market are using CCD image sensors, which have great image quality but are also very expensive to produce. That is why all of the dedicated astro-cameras in the megapixel class size cost many thousands of dollars. However, there has been a lot of fine work done using DSLR cameras from Nikon and Canon for deep sky astrophotography. These cameras use CMOS image sensors but they are not designed specifically for low light astrophotography work. So, there was an opportunity to innovate.\nOur first product being developed is the Starfish camera which uses a 1/2\" format CMOS image sensor. The camera is intended for use as an autoguider and has an integrated ST-4 style guide port.\nWhat is the best way to keep up with the latest devlopments on the starfish camera project?\nThere are three ways to keep abreast of the project's status:\nWhat software support do you have for the starfish camera?\nBundled with the Starfish are two programs from Stark Labs. the first is Nebulosity which provides basic camera control and image processing. The second is PHDGuiding which allows you to use the Starfish as an autoguider. Both programs are cross-platform running under either Microsoft Windows or Mac OS X.\nIn addition, we have our own StarLink program program that runs under MacOS X. This software will provide image acquisition as well as auto-guiding capabilities. Basic image processing functions are also included.\nWe also make available camera plug-ins for popular PC based camera control programs such as MaximDL and CCDSoft. Other programs are being evaluated as well.\nWe also provide a software development kit for those people wishing to write their own software to control the camera. Send us an eMail at firstname.lastname@example.org for more information.\nDo you have plans for other cameras?\nYes. We always planned that we would offer other cameras based upon the core design of the Starfish camera. Leveraging the electronics and software design of this camera will allow us to more quickly bring other cameras to market. We currently have three other camera designs in progress. All are true 16-bit pixel format cameras that are intended to be used as a primary imaging camera for a wide range of imaging tasks (deep-sky to planetary). All will have larger format sensors than that currently in the Starfish camera.\nWe will continue to leverage CMOS image sensor technology in our designs since we think that is where the future of image sensor technology is going. We want to be the first to utilize the advances in CMOS sensor design as new chips become available.\nIn addition, we will be including features in the cameras that are only possible when using CMOS image sensors.\nWhat is the current status of the Starfish Camera project?\nOver a year ago we developed the electronics and enclosure for a prototype camera based upon the MT9M001 Image sensor. After a field testing with several beta testers, we undertook a redesign of the enclosure to make a more compact and lighter camera. A picture of the new camera design alongside the prototype camera can be seen here.\nThe camera design has now been finalised and the camera is in full production.\nWe are now accepting orders for the camera. Please see our ordering information page.\nThe Starfish camera was designed to be used as a guide camera for astronomical imaging applications. As such it has a built in auto-guider port compatible with ST-4 style guide ports included on most brands of telescope mounts. It also has LED status indicator lights that will show the progress of mount guide commands.\nHowever, since it does have a mega-pixel class image sensor with integrated TEC cooling, many people may chose to use the camera as their primary imaging camera. There are limitations that the user will face however. First is the fact that the pixel data format from the image sensor chip is limited to 10 bits. Second, although the camera does have a built in TEC cooler, it can only cool to approximately -15C from ambient. This will limit the maximum exposure time to something under 5 minutes due to the dark current spec of the sensor. Please note that the Guider version of the camera does not have a TEC cooler and will therefore be limited in the length of exposures taken.\nNeither of the limitations are significant for planetary imaging so it is expected that the camera will be very suitable for this kind of imaging.\nAlso, for applications in the microscopy and industrial machine vision fields, the camera should perform exceedingly well. We plan to offer a version of the camera, with the original MT9T001 image sensor to address these markets.\nWe will continue to post example images from the camera on our web site of both planetary and deep space objects for you to evaluate.\nThe table below compares the image sensor used in the starfish guide camera with the sensors used by competitor's guide camera offerings. Note the much larger FOV of the starfish guide camera.\nHow many versions of the Starfish camera do you sell?\nWe currently offer the following three versions of the Starfish camera:\nStandard - This is the version of the camera which includes all of the capabilities listed in the camera specification sheet.\nGuider - This is an un-cooled version of the standard Starfish camera. This will be the camera that people using the Starfish only for guiding will be most interested in. The camera does not have the integral TEC cooler, power supply nor cooling fan. These componnents were removed in the interest of offering a lower cost guider solution to our customers.\nOEM - This version of the camera is a custom version offered to some of our industrial users. We can supply the camera without the TEC cooler capability, the ST-4 guide port and other options that are not used for stricly imaging applications. In addition, because of the hardware based image processing capability of the camera, we can offer specialized image processing functions tailored to your particular application. Please contact our offices for more information.","domain":"optical_engineering"}
{"url":"https://splighting.com.hk/airport-midfield-infrastructure-lighting","date":"2024-04-15T22:12:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00563.warc.gz","language_score":0.9015629887580872,"token_count":189,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__162716964","lang":"en","text":"Lighting Management System, lighting solution, Infrastructure lighting solution\nHong Kong International Airport is the world’s busiest cargo gateway and one of the world’s busiest aviation hubs. This state-of-the-art structure was voted one of the Top 10 Construction Achievements of the 20th Century by the Construction Industry Manufacturers Association and has been recognised as the world’s best airport around 60 times.\nSPL provided an infrastructure lighting solution to decorate the entire Midfield Concourse with customised LED strip lights in all lavatories. The project turned out as a huge success through seamless collaboration with professional designers and engineers. From the smallest components to the overall lighting effect, we always strive for excellence.\nProject Name: Hong Kong Airport Midfield Concourse\nProject Location: Chek Lap Kok\nProject Nature: Infrastructure\nCompletion Year: 2015\nCLick HERE to check out our other lighting projects in infrastructure segment.","domain":"optical_engineering"}
{"url":"https://www.vitramax.com/post/what-is-fusion-with-defective-stereopsis/","date":"2022-08-20T05:02:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573908.30/warc/CC-MAIN-20220820043108-20220820073108-00798.warc.gz","language_score":0.9339989423751831,"token_count":1543,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__188029921","lang":"en","text":"What Is Fusion With Defective Stereopsis?\n- Fusion and Interposition of Two Eyes\n- Stereopsis: A Random Dot Test of Vision\n- Stereopsis Test with the Anaglyph\n- Visual Depth Tests\n- Stereo Vision and Rembrandt's Blindness\n- Stereopsis: A New Technique for Brain-Brain Interaction\n- Contact Lenses and Eyeglass\n- Simultaneous Macular Perception\n- Response of the brain to light in subjects with sensory fusion\n- The chameleon's eyes\nFusion and Interposition of Two Eyes\nThe brain uses the images from the two eyes to form one object. When the objects are the same, fusion occurs. A person can see depth and the size of objects with one eye.\nInterposition is one of the monocular cues. An animal has two eyes that can see a single three-dimensional image of its surroundings. A researcher has stated that having two eyes gives a creature a spare eye in case one is damaged.\nStereopsis: A Random Dot Test of Vision\nStereopsis the ability of both eyes to see the same object and to create a perception of depth. It is a measure of how well the eyes work together. As you are close to each other, they can see the same objects at different angles.\nThere are slight differences between the images that have been captured. If the images captured by both eyes are small, fusion can occur. Double vision or suppression can occur if the images are too different.\nThe Frisby and Lang stereotests are the only random dot stereograms that do not require glasses. Both use different principles to avoid glasses. The Frisby stereotest uses a series of squares with geometric shapes painted on them.\nThe Lang stereotest uses a combination of random dots and cylinder gratings. Right: Frisby stereotest. Right:\nStereopsis Test with the Anaglyph\nNew techniques were sought out to test for stereopsis while maintaining the line of sight, as the haploscope is not used often for diagnostic purposes. The anaglyph uses different colors to show the two images to the eyes. The brain's visual cortex is able to combine images to create one image.\nIn 1852, the first method to view anaglyph images was developed by Rollmann. Two images from the left and right sides were projected into a single image through a red filter one side and a contrasting color on the other side, such as blue or green. Developing an adequate foundation early on in training is essential to best clinical practice, as it is important to have two eyes.\nVisual Depth Tests\nIt's interesting that vision doesn't require the use of both eyes. Take a moment to do an experiment. Look around and cover one eye with your hand.\nAre you able to tell what is in the room? Farther away? The effort from both eyes is needed to see the depth.\nThe eyes must move in the same direction so that the axis of the visual field is pointing at the same object. The Titmus stereo test consists of a combination of targets. A large stereo fly, a series of rings for older patients, and animals for children are some of the targets.\nThe animals and circles are both tested from 800 to 40 seconds of arcs. The fly has a variable stereo from the head to the thorax and has disparity values from 700 to 400 seconds of arcs. The TNO stereo test uses random dot patterns.\nThe patient needs red and green glasses. The test can measure disparity values in a few seconds. The Frisby test does not require the patient to wear glasses.\nStereo Vision and Rembrandt's Blindness\nStereo vision may give people an advantage when depicting a scene using monocular depth cues, and there are indications that a high number of people lacking stereo are compensated by other means. There is a case that Rembrandt may have been blind. Stereopsis processed in the visual cortex of mammals in binocular cells with different horizontal positions in the two eyes.\nThe disparity detector is only active when the preferred stimuli are in the correct position in the left and right eye. Stereo vision with cameras under fixed lighting is called structure from motion. Stereo techniques are used to make a shape from shading.\nStereopsis: A New Technique for Brain-Brain Interaction\nStereopsis can be thought of as depth perception. When a human looks at an object, each eye sees it in a different way, and the pictures go to the brain. The differences between the two images are combined into a single image, which is then used to create a 3D effect.\nContact Lenses and Eyeglass\nEye doctors can prescribe contact lens or eyeglasses to block or obscure images from the bad eye so they don't interfere with the good eye.\nSimultaneous Macular Perception\nThe state of simultaneous vision is achieved by the coordinated use of both eyes, so that separate and slightly different images in each eye are appreciated as a single image. The fusion of sight from the two eyes is what binocular vision implies. The line connects an object point to its image on the retina.\nThe principle visual axis intersects at the fixation point, which is said to be binocular fixation. The two eyes share a common subjective visual direction and corresponding Retinal points. All other elements are not correlated with each other for a particular visual direction.\nWhen the fovea have a common visual direction and the retinal elements in one eye correspond to the fovea in the other, it's called normal. The quality of single vision obtained in the lab varies from patient to patient, in some there is useful gross stereopsis while in the others it is rudimentary. The angle of deviation is the most important factor in determining the quality of binocular vision.\nIt is possible to see two images with different eyes and see them as one. A single visual image is the hallmark of correspondence. The images must be similar in size, brightness and sharpness to allow for sensory fusion.\nUnequal images are a problem. When the corresponding retinal areas are stimulated by different stimuli, one or the other is temporarily suppressed to prevent confusion or diplopia. In order to avoid diplopia suppression is needed.\nResponse of the brain to light in subjects with sensory fusion\nA response of two or three light indicates suppression, a response of four lights indicates fusion, and a response of five lights indicates a problem with the eye. The performance on some motor skills tasks was better in subjects with sensory fusion. The study may not be able to provide a good representation of the subjects because they wore their correction which was not their best correction and could cause some subjects to be under corrected and have additional accommodative demands.\nThe chameleon's eyes\nSome animals have their eyes on the front of their heads, which allows them to see better and reduce their field of view. There are only three groups of animals in the world that have truly forward-facing eyes: monkeys, birds of prey, and mammals. Some animals use both strategies.\nA starling can move their eyes to the front so their fields overlap giving stereopsis, but they have to cover a wide field of view. The chameleon's eyes appear to be mounted on turrets, each moving independently of the other, up or down, left or right. The chameleon can show vergence and stereopsis when hunting, but it can also show no one at all.","domain":"optical_engineering"}
{"url":"https://edtechframework.com/digital-microscopes-a-comparison/","date":"2024-04-18T11:29:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.28/warc/CC-MAIN-20240418093630-20240418123630-00232.warc.gz","language_score":0.9152746200561523,"token_count":399,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__24243282","lang":"en","text":"Jiusion Digital Microscope\nSmall, Easy to store, takes very good pictures. Adjust lights on the cord of the microscope. Takes very good photos.\nThe stand is not very high, nor very steady. Needs to be positioned higher (on a book for instance) in order to view and capture the images of the matter being inspected. Must hang on to microscope while taking photo.\nJiusion Digital Microscope & Stand\nSmall, takes very good pictures. Stand holds the microscope steady for observation and capturing. Stand adjusts up and down with a knob, and maintains the straight angle on the matter being inspected.\nThe stand makes these microscopes take up additional storage space. The ring that holds the microscope in the stand makes focusing a tiny bit awkward.\nInskam Digital Microscope & Stand\nSmall, takes very good pictures. Stand holds the microscope still for observation and capturing. Measurement built onto microscope stand where it cannot be lost.\nThe white stand reflects the lights from the microscope back into the photo. Grid is measured in 5mm by 5mm squares, with no option to change it to micrometers.\nThe same sweater fibre has been photographed under each microscope, for the sake of comparison. The two Jiusion microscopes (left and centre) definitely take a better quality photo.\nThe IMC will have a kit containing the middle microscope with the steadiest stand. These microscopes are easy to use with chromebooks, so science teachers interested in booking a class set of digital microscopes will have that option. The two jiusion microscopes are very similar in their images, however, the one with the flimsy stand is likely to frustrate some students.\nIf schools are interested in purchasing digital microscopes and wish to test the three demonstration models out, contact Michelle and she will send you the three to test out and inspect.","domain":"optical_engineering"}
{"url":"https://www.toolventure.co.uk/hand-tools/st-77340.html","date":"2021-11-29T12:04:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358705.61/warc/CC-MAIN-20211129104236-20211129134236-00309.warc.gz","language_score":0.8729607462882996,"token_count":296,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__169600406","lang":"en","text":"The Stanley Cubix Crossline Laser Level is ideal for internal work and uses a single laser diode that is split with a lens to project bright crossed horizontal and vertical lines onto flat surfaces.\nThanks to pendulum mounted laser and self leveling feature the laser lines are perfectly levelled and projected at right angles to each other to make setting out easy. This makes the laser level perfect for installing architrave, windowsills, shelves and poles, or for use when laying tiles, wall papering, or other installation work, without the need to make pencil marks.\nThe included QuickLink Bracket easily attaches onto one of several mounting slots on the case of the laser level and provides 360 degree maneuverability. The bracket can then be clamped onto door frames, window sills, banisters, poles or rails.\nA 3 position power & beam lock switch allows the laser to be quickly turned on and ready for use. When the switch is moved to the pendulum unlocked position an out of level indicator LED illuminates while the self leveling feature is still righting the beam.\nWhen you need to use the laser level with wall or floor surfaces or for setting angled lines, such as when installing architrave above stairs, move the switch to the pendulum locked position to help prevent damage to the internal components.\nThe laser beam is accurate to 0.8mm/m and is visible over a distance of 8m.\nFOR INDOOR USE ONLY","domain":"optical_engineering"}
{"url":"https://www.itinstock.com/new-celadon-fg-rcv3000-infrared-to-usb-receiver-89952-p.asp","date":"2024-04-25T00:19:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00197.warc.gz","language_score":0.7736635804176331,"token_count":147,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203651995","lang":"en","text":"~ NEW ~\nMODEL: RCV-3000 Infrared USB Receiver\nThe RCV-3000 USB Infrared Receiver standard version is programmed to recognize six of the most popular infrared code protocols used in many infrared remote controls: NEC, RC5, Sony, Mitsubishi, Toshiba and Matsushita. The RCV-3000 USB IR receiver will transmit ASCII strings based on the infrared code protocol transmitted by a remote control. The following table describes the ASCII output format. The RCV-3000 USB IR receiver can be customized to receive other infrared protocols and transmit custom ASCII or HEX data.","domain":"optical_engineering"}
{"url":"http://trentonyvng333.total-blog.com/2-elements-you-do-not-know-pertaining-to-lasik-eye-surgical-operations-11965273","date":"2018-12-14T21:16:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826354.54/warc/CC-MAIN-20181214210553-20181214232553-00561.warc.gz","language_score":0.9524022936820984,"token_count":881,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__76998240","lang":"en","text":"2 Elements You Do Not Know Pertaining To LASIK Eye Surgical OperationsThe eye can be examined with relative ease regarding both its function and its structure. A practical assessment consists of the capability to move in the orbit and the reaction of the student to light and lodging.\nThe function of the eye might be checked in a number of ways. The client may be asked to determine illuminated letter or items of varying sizes on what is known as the Snellen chart.\nOn the other hand, the evaluation of the structural part of the eye might be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, specifically in glaucoma, the tension in the eyeball is increased noticeably.\nIt ought to be well remembered that a patient with an eye problem may have other problems. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can alert the physician and the patient to problems in some disruptions of other parts of the body even before other signs provide themselves.\nOne's dependence on sight is emphasized when one deals with a momentary or possible permanent loss of this vital sense. For this reason, when restorative steps are looked for, particular forms of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with the fact that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction. The only distinction is that with this type of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgery is to create a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that individuals should know. Probably, the main reason why this type of eye surgical treatment has actually become well accepted is because most of its cases had actually succeeded.\nIn spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most Read More Here sensitive part of the eye\nDue to the fact that LASIK eye surgery includes the operation of the retina, which is one of the most delicate parts of the eye, the majority of people say that the operation can be extremely risky.\nIn other words, a simple mistake could nearly trigger an individual's lifetime blindness. For this reason, it is essential to think about numerous factors prior to deciding whether LASIK eye surgery is the best corrective procedure one has to go through.\n2. It is not a best procedure\nLASIK eye surgery might fix your vision however it does not necessarily indicate that it can give you a best vision. Even if statistical reports reveal that 70% of the patients may have 20/20 vision, this does not necessarily indicate they have perfect vision also.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not always be the ideal eye site surgical treatment the way most individuals see it\nAlternatively, the evaluation of the structural part of the eye might be made in several methods. It needs to be well remembered that a client with an eye problem may have other issues. Frequently other physical conditions are main and impact the eye as a consequence. The look of the eye can notify the client and the doctor to difficulties in some disturbances of other parts of the body even before other signs present themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://www.hrpowersports.com/category-s/179.htm","date":"2018-05-20T18:02:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794863662.15/warc/CC-MAIN-20180520170536-20180520190536-00197.warc.gz","language_score":0.893488347530365,"token_count":723,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__73526257","lang":"en","text":"100% 2016 Goggle Case - Camo 951312\n100% Goggle Case brought to you by the company that has taken the goggle world by storm!\nFocus, a point at which an object must be situated with\nrespect to a lens for an image to be well defined. A thin lens is all\nthat stands in your way when you are focused. 100% products can silently\nhelp you focus on your competition, enabling you the opportunity to\nleave it all on the track. 100%, the Spirit of racing. Your goggles are\nTransport your goggles in style with our custom carrying\ncase. The padded interior keeps all of your goggles, lenses, and\naccessories neatly organized and perfectly secure.\nScott - Prospect Goggle\nScott - Prospect Goggle\nFor riders that demand more from their goggles, the new SCOTT\nPROSPECT goggle is up for the challenge. The Prospect starts a new\nchapter in a very decorated goggle history for Scott.Capitalizing on 45\nyears of experience, the SCOTT PROSPECT pushes the limits of field of\nvision, comfort and lens retention. Our new, innovative lens lock system\nnot only increases impact resistance, but will keep the lens in the\nframe regardless of how rowdy your ride gets.\n\"The lens lock system has been designed to guarantee the safest lens\nretention on the market today. I have tested them and they work\nflawlessly\" Professional motocross rider Trey Canard says.\nThe Scott lens lock system Features a four locking pins that go\nthrough the lens and guarantees that the lens is never popping out. A\nthicker 1mm material is used to make the Prospect lens even more\nresistant than before. Changing the lens has been made easier thanks to\nthe new rentention system. Simply open the 4 tabs - 2 on the top and 2\non the bottom - to remove the lens from the frame in a matter of\nThe largest field of view in the industry, the the FOV in the\nProspect goggle is the result of 3 key elemets that Scott has built into\nthe goggle. Scott incresed the lens perimeter while lowering the nose,\ncreating the largest possible lens and reduces vision distractions. The\nframe has been slimmed down to avoid \"tunnel effect\" and to increase the\nfield of vision for riders. The Curve lens achieves maximum peripheral\nThe pivoting outriggers adapt to any helmet shape and size. Having\nthis outrigger system provides a complete and consistent seal against\nthe rider's face. Paired with the optional WFS50 roll-off system that is\nlarger and more fined tuned than it's predesessor that includes a quick\nand tool-less canister installation.\nlooks, a massive field of vision, and clever features for riding in any\nweather conditions - grab these goggles and get ready to roost.\nFor the maximum vision on the track, trails or anywhere you ride, the\nScott Prospect goggles are guaranteed to propel you to the finish line!\n- Safest lens retention system\n- Largest field of vision on the market\n- Thermoformed No-Sweat 3-layer face foam\n- Lens lock system\n- Articulated outriggers\n- Nosweat 3.2 face foam\n- No-slip silicone strap\n- Removable noseguard\n- NOFOG anti-fog lens treatment\n- 100% UV protection\n- Bonus Clear Lens Included","domain":"optical_engineering"}
{"url":"https://experts.unthsc.edu/en/publications/plasmonic-platforms-of-self-assembled-silver-nanostructures-in-ap","date":"2023-04-01T02:10:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949694.55/warc/CC-MAIN-20230401001704-20230401031704-00479.warc.gz","language_score":0.851201593875885,"token_count":265,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__140731932","lang":"en","text":"Fluorescence intensity changes were investigated theoretically and experimentally using self-assembled colloidal structures on silver semitransparent mirrors. Using a simplified quasi-static model and finite element method, we demonstrate that near-field interactions of metallic nanostructures with a continuous metallic surface create conditions that produce enormously enhanced surface plasmon resonances. The results were used to explain the observed enhancements and determine the optimal conditions for the experiment. The theoretical parts of the studies are supported with reports on detailed emission intensity changes which provided multiple fluorescence hot spots with 2-3 orders of enhancements. We study two kinds of the fluorophores: dye molecules and fluorescent nanospheres characterized with similar spectral emission regions. Using a lifetime-resolved fluorescence/reflection confocal microscopy technique, we find that the largest rate for enhancement (~1000-fold) comes from localized areas of silver nanostructures.\n|Journal||Journal of Nanophotonics|\n|State||Published - 2010|\n- fluorescence lifetime imaging\n- metal-enhanced fluorescence\n- plasmonic platform","domain":"optical_engineering"}
{"url":"http://focusonpictures.com/photography/photography4.htm","date":"2017-04-30T09:05:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917124478.77/warc/CC-MAIN-20170423031204-00638-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8929237127304077,"token_count":1168,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__97977595","lang":"en","text":"Photography of shiny objects\nColour of light\n('colour temperature') - Obviously the colour of objects needs to be correctly reproduced. Colour rendering depends on a number of factors, such as:\n- The colour of the light used for lighting the object.\n- How well film or the light-sensitive component of a digital camera can reproduce a colour (in digital cameras the white balance needs to be propertly set).\n- How old is the film, and was it properly developed.\n- How well can the colour and contrast be reproduced in a print;\n- when using a printer: what are the printer's specifications, what those of the pigments and the paper used;\n- in the case of a computer screen: how well can the screen reproduce the colours and brightness.\n- What colour and brightness corrections have been carried out.\nLet us consider the colour of light. As we all know from looking at the rainbow white light is made up of a large spectrum of colours. At sunrise and sunset the outside light is reddish, with the sun high in a clear sky it is bluish but white when the sun lights the earth through a layer of clouds. The light from normal (tungsten) light bulbs is yellowish or orange tinged, the light emitted by halogen light sources is closer to white, photographic flash lights emit white light. However, if you use a flash light in a space with a coloured wall, the light reflected from the wall will not be white and will influece the perception of all objects illuminated with the reflected light. Similarly in e.g. a church with stained glass windows, the filtered light will create a colour cast that affects all objects in its interior. Usually we are not conscious of the more subtle variations of the colour of light as the brain adapts to it, so that after a short while a colour cast is filtered out and goes unnoticed. The material that we use to take a photograph (film, CCD or CMOS) does not adapt and mercilessly records any colour cast .\nColour of light - An iron rod when heated starts to emit red light, then it turns more yellow, subsequently white and at an even higher temperature blueish. One can correlate the colour of the light emitted to the thermodynamic temperate of the object emitting the light; temperature is expressed in Kelvin (K) (or in mired, see below). The light emitted at a certain temperature is thus called the temperature colour. Interestingly, in everyday language red is called a warm colour, and blue a cold colour.\nThe figure on the right shows the colours of the rainbow (red - orange - yellow - green - blue - indigo - violet), and white in the centre. Red, green and blue are primary colours which when added yield white; the are therefore called additive colours. White is obtained by adding diagonally opposed colours (e.g. blue + yellow); diagonally opposed colours are therefore called complementary. Thus white is to be found at the centre of the spectral map. The black line is Planck's curve, used to indicate colour temperature. The table below relates the colour of environmental light to light sources:\n|sunrise or sunset||2000 K||reddish-yellow|\n|tungsten light 100 watt||2800 K||orange-yellowish|\n|halogen light 500 watt||3200 K||yellowish|\n|halogen film photoflood 500 watt||3400 K||yellowish|\n|one hour after sunrise||3500 K||yellowish|\n|flash bulbs||4950 K||white with minimal yellow cast|\n|daylight at noon||5400 K||white|\n|electronic flashlight||5500 K||white|\n|unclouded, daytime||6500 K|\n|unclouded, summertime||> 8000 K|\nHow can a colour cast be handled ?\n- Professional photographers employ a meter to measure the colour temperature. When taking the photograph a filter is used to remove the colour cast. Such a meter is too costly for the amateur photographer. However, when using artificial light sources one can easily estimate the colour temperature of the light emitted and apply appropriate filters to remove any colour bias.\n- If you want the colour rendition to meet high requirements, you can use a colour control map and take a photograph of it under identical conditions as the photograph of the scene of interest. Kodak Color Control Patches are available through retailers. Professional laboratories can use the standardized colour set to make the necessary adjustments in print. This approach is less costly than purchasing a colour temperature meter and a set of colour filters; in addition it overcomes differences in colour rendition of film or digital devices.\n- The more sophisticated digital cameras have facilities to adjust the colour temperature at the time of taking the photograph.\n- Colour corrections can be made retrospectively by comparing the photograph with the original object. This is within anyone's reach who is capable of manipulating an image by computer, using software such as Photoshop®. Store digital images in RAW format, use software such as Lightroom® and Photoshop® and adjust the colour temperature then.\nAnother unit often used to express colour temperature is the mired, for “micro reciprocal degrees”.\nTo obtain the mired value for a colour temperature divide 1 million by the colour temperature. Thus 5500 K is the same as 182 mired, since 1 000 000 / 5500 = 182.\nMireds are commonly used for converting light from one colour temperature to another using a colour conversion filter. The decamired system is often used by continental European manufacturers in lieu of the arbitrarily numbered Wratten system applied to colour conversion filters.","domain":"optical_engineering"}
{"url":"https://www.compeyewest.com/optical-shop/","date":"2023-09-28T22:05:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510454.60/warc/CC-MAIN-20230928194838-20230928224838-00318.warc.gz","language_score":0.9477655291557312,"token_count":390,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__223683572","lang":"en","text":"Staffed by certified, licensed opticians, Complete Eye Care West offers the finest in Optical services, from contact lenses by all your favorite manufacturers, specialty fit contact lenses such as gas permeable and Synergeyes hybrid lenses, to a wide array of stylish and comfortable eyeglass frames.\nDesign, material and treatments are just three components that make up a pair of prescription lenses. Complete EyeCare West offers a variety of frames and lenses allowing us to meet the needs of each of our patients.\nDigital Progressive Lenses\nDigital progressive lenses come in a variety of styles and are designed for the modern presbyope. They are no-line multifocal eyeglass lenses that look exactly the same as single vision lenses. These lenses provide clear vision not just for near and far, but also for all distances in between without any abrupt changes or visible lines in the lens. These types of lenses are divided into three sections: distance, intermediate and near.\nOne common occurrence for eyeglass wearers is the annoying glare and reflections that are caused by light bouncing off their lenses. Anti-reflective coating is designed to reduce this glare, especially during night time driving. They help to improve safety by reducing reflections and allowing more light to pass through to your eyes. Our office has a series of demonstrations to show the effectiveness and benefits of anti-reflective coating on your new lenses.\nComputer glasses are prescription glasses that are designed to be worn when working on a computer. They allow you to focus your eyes on a computer screen, which is at arm’s length, further away than normal reading distance. Unlike conventional progressive lenses, these have an intermediate distance on the top portion of the lens, and a reading power below. By doing this, it allows for a larger area for viewing the computer monitor than you would get with traditional progressive lenses.","domain":"optical_engineering"}
{"url":"https://bluecanoemarketing.com/blue-canoe-supports-6th-arizona-photonics-days/","date":"2024-04-24T05:16:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819067.85/warc/CC-MAIN-20240424045636-20240424075636-00707.warc.gz","language_score":0.9322519898414612,"token_count":105,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__85053030","lang":"en","text":"January 11, 2023 – Blue Canoe Supports 6th Arizona Photonics Days\nArizona is home to world-class businesses and scientific and educational institutions with decades of innovation and leadership in optics and photonics. The 6th Arizona Photonics Days reflects this leadership with more than 30 technical presentations in six application areas, industry panels, company pitches, and plenty of networking opportunities.\nWe’re proud to be a Bronze Sponsor of this conference. Join us January 25-27, 2023, in Tucson, Arizona!","domain":"optical_engineering"}
{"url":"http://dickandlibby.blogspot.com/","date":"2014-04-24T04:15:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00309-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9586342573165894,"token_count":345,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__34220678","lang":"en","text":"Look at the picture below. It shows one of two gimballed oil lamps we have on board, and the light patterns on the wall when the sun streams through the portholes and the lamp's globe. We see the same patterns with both lamps and with light coming from any one of six portholes.\nAs you can see, the pattern is dominated by horizontal lines. No such lines are visible in the glass. Both oil lamps make similar patterns. I've tried cleaning the globes with vinegar to see if it might be dirt on the glass causing the lines. Nope.\nThe porthole glass is tempered. I suppose it is possible that the light coming through them is polarized. But I can't see how that plays any role. Besides, the different portholes would have random polarization orientations, but the lines are horizontal no matter which porthole the light comes in.\nYou can see in the picture that light from the portholes that does not go through the lamp globe has no pattern.\nI just noticed that the picture shows something that is not visible to my naked eye. I see spider-web like connections between the lamp and the wall. It looks like the light rays cross forming an X pattern in the air. Hmm, very interesting but I still don't see how that makes the lines.\nCould it be constructive/destructive interference as light rays reach the wall via two different paths?\nTo me, this is an unexplained mystery. Why the lines in the light pattern? Is this something a PHD candidate could write a thesis on? I could spend days staring at that pattern trying to understand it. What do readers say? Please comment.","domain":"optical_engineering"}
{"url":"http://ckpaperfvkt.weareallimmigrants.us/research-paper-fiber-optic.html","date":"2018-08-15T05:03:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221209884.38/warc/CC-MAIN-20180815043905-20180815063905-00201.warc.gz","language_score":0.8722068667411804,"token_count":467,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__69517291","lang":"en","text":"This paper gives an overview of fiber optic communication systems including their key technologies research is currently ongoing to find an effective. Fiber types in gigabit optical communications fiber optic cables are 1977–1978 low loss at long wavelengths renews research interest in single-mode fiber. The advantages of fibre optics this research paper the advantages of fibre optics and other 63,000+ term papers optic fiber cables. Research paper fiber optic the best american series short stories and essays gangs of new york research paper it has been in continuous use since then and is now one. Essays, term papers, book reports, research papers on technology free papers and essays on fiber optics we provide free model essays on technology, fiber optics.\nIn the paper “fiber optic cables” the author analyzes the range of services that are travelled within the computer networks this is the. Fiber optics research papers - get the needed paper here and forget about your fears get started with research paper writing and compose greatest term paper ever best. Read this technology research paper and over 88,000 other research documents the advantages of fibre optics fiber optics: light-wave communication mathew geraghty. Some great benefits of research paper on fiber optic technology, cover letter examples aldi, embryonic stem cells research paper, essay on improving fluency.\nAn introduction to fiber optics technology this research paper an introduction to fiber optics technology and other 63,000+ term papers, college essay examples and. Fiber optic paper - download as word fiber-optics is so flexible that they can transmit and receive research paper on an experimental investigation.\nSome basic aspects concerning fiber optics are examined some history leading up to the development of optical fibers which are now used in the transmission of data. Manufactures portable, online infrared thermometers, optical pyrometers, contact optical fiber research paper and immersion thermocouple pyrometers and process. Teledyne marine technology solutions the advantages of fibre optics fiber optics research paper - receive a 100% original, non-plagiarized dissertation essay on.\nFiber optics information on ieee's technology navigator start your research here fiber optics-related conferences, publications, and organizations. The journal of optical and fiber communications research (jofcr) is an international journal publishing original, peer-reviewed articles of interest to the optics.","domain":"optical_engineering"}
{"url":"https://ars-traffic.com/solutions/scapeye/","date":"2022-09-25T11:37:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334528.24/warc/CC-MAIN-20220925101046-20220925131046-00780.warc.gz","language_score":0.9125778675079346,"token_count":182,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__249581307","lang":"en","text":"SCAPEYE VISION ANALYTICS\nScapeye, ARS Traffic & Transport Technology’s subsidiary, improves efficiency and safety in traffic, transport, automotive and mobility with the use of industry leading computer vision technology. Scapeye delivers vision analytics software for solutions that require high performance and accuracy. Their clients are system integrators, vision hardware and software manufacturers and distributors.\nAs a forerunner in vision analytics with over 25 years of experience, Scapeye commits itself to deliver unmatched detection speed and accuracy. We are taking the next step in vision analytics by adding ‘reasoning’ to ‘recognition’ and get a better digital understanding of what is happening in the real-world environment. This makes Scapeye the best choice for critical decision support under challenging conditions.\nLearn more about Scapeye and its products on their website.","domain":"optical_engineering"}
{"url":"https://www.dropforyou.com/Long-Distance-Light-Projection-Optical-Dynamics-Flashlight-Black.html","date":"2023-03-23T18:24:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945182.12/warc/CC-MAIN-20230323163125-20230323193125-00429.warc.gz","language_score":0.9088865518569946,"token_count":802,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__161596825","lang":"en","text":"Cart is Empty\n|USPS USPS Retail Ground®||$12.05||$13.50||$16.10||$17.65||$21.25|\n|FedEx Home Delivery®||$15.38||$15.38||$15.42||$16.25||$16.87|\n|USPS Priority Mail||$11.40||$14.95||$18.30||$21.60||$24.05|\nThe OD40 is a long distance illuminator that projects a true collimated, focused beam of high definition light that has been created specifically for game identification in a hunting situation. It creates a crisp, clean, clear, focused circle of light at long distances. This not only allows animal or target identification but provides the hunter the ability to make a good, clean shot due to the clarity and definition of the light at longer distances. Optical Dynamics light projection technology puts the hunter in control. The focused beam of light is infinitely brighter, doesn't fade or disperse, doesn't leave dark spots and doesn't reflect back into your eyes to negatively affect your vision. It gives your natural eyesight the ability to function at its best without adverse reaction to reflected light which allows the hunter to hunt more comfortably, which equals slower hunts, better target acquisition, and more success. The OD40 is energy efficient and more effective than any other target-illuminating device on the market. You'll enjoy hour after hour of night hunting success. Animals don't flare! Optical Dynamics engineers have developed a revolutionary, patented photonics technology called CALS. This Collimated Amplified Lens System was engineered to truly project visibly harmonized and intensified light without the use of reflectors or diffusers. Pure, clear light that is so clean the waves of light are unaltered. This allows an animal to take the light without a negative reaction. CALS combines specially engineered multi-coated precision lenses of the highest quality never before used in a light projection device for the outdoorsman. The system effectively captures 100% of the light generated from its CREE LED source and projects a gin-clear, narrow, adjustable column of pure light that clearly illuminates your target. No light is wasted, sprayed, or reflected back to illuminate the hunter. Mount and ergonomics allows for quick, no hassle target acquisition. The OD40 is compact, lightweight and easy to handle, carry, or mount onto a scope or rail with the Optical Dynamics mount. It weighs just 14 ounces with the two included CR123A batteries that provide constant operation up to 100 minutes. Its CREE LED delivers 720 lumens to the lenses that make up the CALS system. Constructed of aircraft grade aluminum, the Optical Dynamics OD40 is shockproof and resistant to water and momentary submersion. It measures just 8-1/2 inches long and is less than two-inches in diameter at its widest point.\nIt's Not a Flashlight. Unlike flashlights that reflect an uncontrolled diffused light, the OD40 projects a pure column of light that is measured in Field of View (FOV). Its illuminated FOV is 27 feet at 50 yards and up to 108 feet at 200 yards. The illuminated surface areas created by Optical Dynamics are conducive for use as night-vision in hunting situations. The OD40 optimizes the naked eye's natural vision by supplying a target identification distance of up to 150 yards. When used in conjunction with a scope the target identification distance increases by 33%. Light Nothing You Have Seen Before.","domain":"optical_engineering"}
{"url":"http://iscmediplex.com/page_content.php?pageID=290","date":"2023-06-08T01:49:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654031.92/warc/CC-MAIN-20230608003500-20230608033500-00186.warc.gz","language_score":0.9016468524932861,"token_count":1778,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__41816172","lang":"en","text":"What is.. LASIK ?\nLaser assisted in situ keratomileusis, or LASIK, is an outpatient surgical procedure that treats myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. LASIK uses a microkeratome and a laser to reshape the cornea (the clear covering of the eye) to improve the way the eye focuses light rays on to the retina. LASIK eliminates your dependence on glasses and contact lens. Most people who have this procedure are corrected to better than 20/40 vision with a majority of people achieving 20/20 vision or better.\nPrecise, Fast, and Safe\nWe use the latest FDA approved WaveLight EX500 Excimer Laser which delivers the fastest laser vision correction procedures available. The EX500 is the next generation in Wavefront Optimized technology designed to increase efficiency and enhance patient comfort.\nBuilt for Speed and Superb Outcomes\nFeaturing a 500 Hz repetition rate, the WaveLight EX500 Excimer Laser delivers the world’s fastest ablation times at only about 1.4 seconds per diopter, resulting in consistent outcomes. This innovative engineering helps reduce the potential for:\n1. Stromal dehydration of the cornea\n2. Flap shrinkage\n3. Sensitivity to eye movements\n4. Patient fixation fatigue\nBuilt for Speed and Superb Outcomes\nWith a powerful 1050 Hz multi-dimensional eye tracker, the WaveLight EX500 Excimer Laser offers exceptional precision and safety:\n1. Movement tracking with just 2 milliseconds of latency\n2. Dynamic pupil tracking with active pupil centroid shift correction\n3. NeuroTrack to compensate for cyclotorsion\nOptimized Shot Distribution\nUtilizing proprietary PerfectPulse Technology, the WaveLight EX500 Excimer Laser maintains a high pulse frequency with a minimized thermal load:\n1. Only 1 pulse in 5 is allowed to overlap\n2. Optimizes temporal and spatial shot distribution\n3. Reduces the potential for nighttime glare and halos\nIts proven state-of-the-art technology provides excellent results that is customized to every eye through Wavefront Optimized®, Wavefront-Guided, and Topography-Guided laser procedures. The EX500 provides the physician and patient with the utmost safety and reliability.\nBladeless Femtosecond Lasik\nThe latest revolution in lasik surgery\nFemtosecond Laser Lasik\nCreating the flap is a standard step in LASIK. With traditional LASIK, your surgeon used a mechanical instrument containing a blade to create the flap. Now, laser vision correction features a second laser specially designed for faster and safer flap creations. This new laser gives your surgeon complete control for personalized treatments, precise and predictable procedures, and the most consistent results.\nWaveLight® FS200 Femtosecond Laser\nThe WaveLight® FS200 femtosecond laser helps doctors produce more reliable outcomes during refractive procedures. By combining optimal energy including low-pulse energy during sharp-cutting edging and spacing parameters through a highly precise scanning algorithm, the WaveLight® FS200 laser makes it possible for surgeons to create consistent, high-quality \"flaps.\"\nAdvantages of Femtosecond Lasers in Lasik\n1. Significant improvement in safety with minimized occurences of flap complications\n2. Bladeless procedure\n3. Precise and customizable flap perfectly tailored to each individual patient's procedure\n4. Creates a smooth and fast healing flap allowing for a faster recovery\n5. Creates a flap in just 6 seconds\nAm I ... a good candidate for LASIK?\nPeople who want to minimize their dependence on glasses or contact lenses make good candidates for LASIK. Lifestyle, hobbies, and amount of correction needed are all factors that may determine whether you are a good candidate.\nThe ideal candidate for LASIK should\n- be over 18 years of age\n- has a stable vision for at least one year. You should not have had a change in your prescription in the last year, and should have a refractive error within the range of correction for LASIK\n- not have Sjogren's Syndrome, Lupus or previous herpes of eyes\n- not have a present scarring on the cornea\n- not be nursing or pregnant on the date of surgery\n- not have pupils that dilate beyond seven millimeters in the dark\nYou must also be willing to accept the potential risks and side effects.\nWhat happens before surgery?\nYour ophthalmologist will perform a thorough eye exam to measure your prescription and check for any abnormalities to determine if your eyes are healthy and suitable for the treatment.\nIf you wear contact lenses, you should stop wearing them at least 5-7 days before the actual treatment, depending on the type of contact lens that you are wearing. Your doctor will check your eyes for unusual dryness, which could cause dry eye symptoms post-operatively, or unusually large pupils, which could affect night or low-light vision.\nHow is LASIK done ?\nA flap is created in the upper layer of the eye and carefully folded back.\nNext, laserlight gently reshapes the cornea\nThe flap is then put back into its original position, where it completely adheres.\nYour physician will conduct and extensive examination of your eye before the laser treatment in order to precisely determine its health, come al thickness and the degree of your visual defect. Once the examination is completed on the day of treatment, you will lie down on the laser bed. The physician will then apply eye drops to numb your eye.\nYou will already be able to see your surroundings with improved visual acuity, but for a few hours after the treatment your eye may itch or burn and you experience sensitivity to light. You should try to rest and avoid strenuous visual activities like reading or watching TV while your eye continues the healing process.\nIn the first step of the procedure, the physician creates a thin flap in the upper layer of your cornea. During this time your sight will be briefly interrupted due to increased ocular pressure in your eye. Then the flap is carefully folded back to expose the lower corneal layer. At this point you will be able to see, but everything will be blurry.\nFor the next step, the physician will ask you to concentrate your sight on a green light. Then the actual laser treatment begins. Due to the high speed of the laser system, the average treatment will only take a few seconds.\nOnce the laser treatment is finished, the flap is returned to its original position where it completely adheres and works like a natural band-aid. Your eye will then receive antibiotic eye drops to prevent infections. The treatment is now fully completed.\nWhat happens after surgery?\nA see-through shield protects the eye for the first night. It is normal for the eye to burn or feel scratchy. This usually disappears in a few hours. Plan on going home and taking a nap or just relaxing after the procedure. You will be given eyedrops to help heal and alleviate dryness. Healing after LASIK is usually less uncomfortable than with other methods of refractive surgery because the laser removes tissue from the inside of the cornea and not the more sensitive corneal surface.\n- The follow up exams during recovery are required to ensure that your eyes heal properly.\n- Do not rub your eyes. You may wear protective eye shields for the first 1-2 nights.\n- Don’t let the water directly getting in your eyes for the first 5-7 days. Use a face cloth and be careful not to rub your eyes\n- Wear sunglasses after surgery if you experience sensitivity to bright lights\n- Avoid eye makeup and smoky or dusty environments for a week.\n- Patients are able to return to work and other daily activities the day after the procedure. It is recommended that you go to sleep right after LASIK surgery to reduce post-operative pain. When you wake up, you should already notice improved vision.\nRisks, Complications and Side Effects\nLASIK has small risks and complications that should be carefully considered. There is small chance that LASIK can result in undercorrection or overcorrection. Most complications can be treated without any loss of vision. Many people experience some dryness in the eyes and fluctuating vision during the day. These symptoms usually fade within one month, although some people will continue to have symptoms for a longer period of time.","domain":"optical_engineering"}
{"url":"https://hydroponics.com/shop/homegrown-led-650w-veg-bloom-4-8-bank-dimmable-strip-light/","date":"2022-05-25T03:44:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662578939.73/warc/CC-MAIN-20220525023952-20220525053952-00709.warc.gz","language_score":0.7607667446136475,"token_count":293,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__46272760","lang":"en","text":"The Homegrown 8 Bank LED Light bar is the best value White LED to hit the market. With the highest quality full spectrum LED diodes, these light bars have full spectrum for both grow and bloom phase. With 650 watts of true power, this light easily replaces a 1000 watt HID Lamp.\nThis spectrum is suitable for both Vegetative and Flower cycles of plants. Coverage of these LEDs are 5′ x 5′, they can be hung together to create a lager array for large grow beds. IP65 rated for moist environments; dust and moisture resistant.\nWholesale prices available upon request. Commercial customization available.\n–Dimmable Controller from 0-100%\n-Daisy Chain the controller wire for easy dimming or control of multiple lights\n-Multi Voltage Controller 95-277 Volts\n100-277 Volts A/C\nPPFD@4″ (μmol/m2/s1): 1205\nPPFD@ 8″ (μmol/m2/s1): 976\nPPF (μmol/s1): 1560\nPhoton Efficacy (μmol/j): 2.5\nHeat Output: 2145 BTU/h\nNet Weight (Driver Included): 15.5kg/34.2lbs","domain":"optical_engineering"}
{"url":"https://www.otcmedstore.com/pulse-oximeter-jz-130r-(black)","date":"2021-06-13T05:38:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487600396.21/warc/CC-MAIN-20210613041713-20210613071713-00358.warc.gz","language_score":0.7295394539833069,"token_count":263,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__32735335","lang":"en","text":"KIUZOU FDA & CE Certified Pulse Oximeter\n- ACCURATE & RELIABLE: Blood oxygen accuracy is ±2%, pulse rate is ±1%, SpO2 measurement range is 70% to 99%, PI measurement range is 0.2%-30%, (PR)BPM measurement range is 30 bpm - 250 bpm. When the body abnormal data is measured, a buzzer will be automatically sent.\n- QUICK & CONVENIENT READINGS: High precision two-color oximeter displays SpO2 in four directions, six display modes. The bright OLED display cover prevents ambient light from escaping, making the readings clear and clear, with 5 levels of brightness adjustable, and a low-power indicator.\n- 4-in-1 FUNCTION: SPO2 sensor will check and display blood oxygen SPO2 value, pulse PR value, blood oxygen bar graph, pulse waveform graph, PI (perfusion index), respiratory rate monitoring parameter + sleep monitoring parameter in real time.\n- PORTABLE & LIGHTWEIGHT: Each oximeter weighs only 41g and comes with a neck lanyard, attaches the lanyard to the case or connects directly to the oximeter, so you can use the portable oxygen sensor at any time.","domain":"optical_engineering"}
{"url":"https://www.amperordirect.com/pc/help-pulse-oximeter/z-nonin-choice-pulserate.html","date":"2023-06-06T17:31:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652959.43/warc/CC-MAIN-20230606150510-20230606180510-00002.warc.gz","language_score":0.9095220565795898,"token_count":601,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__267186795","lang":"en","text":"Nonin and Choice Oximeter Review - Pulse Rate, Light and Motion\nNonin and Choice oximeter reivew: This is the fifth in a series of articles in comparing the performance of oximeters made by Nonin and Choice. We used the four oximeters Onyx 9500, MD300C63, GO2, and MD300C1 to take measurements under different pulse rates, light conditions and motion levels. The objective is to test these oximeters under the most extreme situations, including cases that are outside normal operating ranges and would rarely happen in real situations.\nWe started with the following initial conditions and varied the pulse rate from 45 BPM to 180 BPM.\n- Bradycardia: SpO2 88%, Signal Strength: 5%\n- Neonate: SpO2 90%, Signal Strength: 1%\nThe results for all four oximeters are similar and in agreement.\nAmbient light conditions\nThe BIOTEK Index SpO2 Simulator can simulate three different light conditions.\n|Sunlight||n/a||Index 2XL simulates sunlight by controlling the output from an LED so that a light level is added to the simulation. This light level is present both between, and during, red and infrared pulses.|\n|Artificial||50 Hz||Artificial light is simulated by superimposing 50 Hz noise on the pleth wave.|\n|Artificial||60 Hz||Artificial light is simulated by superimposing 60 Hz noise on the pleth wave.|\nFluorescent lamps can produce flicker at the mains frequency (50 or 60 Hz) and can affect oximeter readings.\nAll the oximeters under testing did an excellent job in filtering out the ambient noise. There is no or little changes when taking measurements under these settings.\nA pulse oximeter has a pair of small light-emitting diodes (LEDs) facing a photodiode through a translucent part of the patient's body, usually a fingertip. These LEDs are at different wavelengths and absorption at these wavelengths differs significantly between oxyhemoglobin and its deoxygenated form. SpO2 is calculated from the ratio of the absorption of the red and infrared light. During a measurement, if the LED and the finger moved relative to each other, the signals would be corrupted or interrupted. This test is to gauge the tolerance of the oximeters to motion.\nBIOTEK simulator has two motion levels - \"Motion Level 1 is recommended when testing pulse oximeters with Masimo Set technology. Use Motion Level 2 when testing pulse oximeters with Nellcor Motion technology\". When we attempted to apply these two motion levels to the oximeters, we could not provide reliable data. No conclusive result can be obtained. Our general impression was that the Nonin oximeters were somewhat more tolerant to motion than the Choice oximeters.","domain":"optical_engineering"}
{"url":"https://celldiv.biomedcentral.com/articles/10.1186/1747-1028-4-20/figures/2","date":"2020-02-24T06:22:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145897.19/warc/CC-MAIN-20200224040929-20200224070929-00536.warc.gz","language_score":0.917360246181488,"token_count":191,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__151950905","lang":"en","text":"Antibody-based detection of sample proteins: A) Protein arrays or reverse phase protein arrays. Proteins are spotted on a support (i.e. glass slide). The primary antibody binds specifically to its protein. The secondary antibody conjugated with HRP (or fluorescence) then bind to the primary antibodies. The substrate is cleaved by HRP to develop detectable color. B) Antibody arrays. Antibodies are spotted on a glass slide and the proteins in the sample are captured on to the glass slide. Another antibody which binds to a different epitope of the protein is used to detect the protein. C) Bead-based array (Luminex platform). The Luminex bead is coated with the capture antibody which binds to the protein in the sample. Another antibody which binds to a different epitope is labeled with fluorescence for the detection. Red laser detects bead and green laser detects the antibody.","domain":"optical_engineering"}
{"url":"https://hecmedia.org/posts/st-louis-cardinals-unveil-new-state-of-the-art-lighting-system-at-busch-stadium","date":"2021-10-18T02:15:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585186.33/warc/CC-MAIN-20211018000838-20211018030838-00025.warc.gz","language_score":0.9480997323989868,"token_count":630,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__92763869","lang":"en","text":"St. Louis Cardinals fans are given one more reason to celebrate the 2019 home opener against the San Diego Padres at Busch Stadium.\nThe Cards are lighting it up in 2019, giving fans a new visual experience when playing on home turf.\n“We are told that this will be the best outdoor lighting facility in professional sports,” said Joe Abernathy, Vice President of Facility Planning and Engineering for the St. Louis Cardinals.\nEyes have been opened to the advantages of state-of-the-art LED lights. Busch Stadium is now one of 18 Major League Baseball stadiums with LED lighting technology.\nThe St. Louis Cardinals partnered with PLANLEDTM to install the lighting system. Abernathy said it has the highest, true-to-life color rendering in an outdoor sports venue.\n“Increasing the quality and intensity of our light by about 25%,” said Abernathy.\n“We are going to have a color rendering index of 90% which has never been done at an outdoor facility.”\nThe system provides 90% of the quality of natural light that allows uniformity by reducing shadows and glare. Whether fans are watching the game in stadium seats or from home, the lights are expected to improve the visual experience.\n“You may see the ball better. You’ll see the colors much better,” said Abernathy. “With this 500k light that the LED system will put out, reds will pop out brighter and greens will be greener.”\nHe said the advanced nature of the LED lights improves broadcast quality for viewers at home since the system is HD compatible and 4K ready. Ultra-slow motion replays will no longer have the light flickering.\nAbernathy detailed some of the advantages for players on the field.\n“Certainly from a scientific standpoint, we met all the test requirements,” he said. “The glare is under control, which is one of the key things when it comes to providing brightness. With the 680 light fixtures, we can provide different angels of aiming and that becomes the key to controlling glare to make sure you’re not shining directly into a player’s eye from a location from which he might be seeing the ball.”\nThe new LED lighting technology also reduces operating and energy costs.\n“Tens of thousands of dollars every year is what it’s going to save,” Abernathy explained.\nThe system is designed to have a life expectancy of 30 years with at least a 50% reduction in the energy required to operate the field lights.\n“We won’t have to get up there every year and replace them. In fact, this particular system has a 20 year warrantee,” Abernathy said. “I won’t have to replace lights, they tell me, for as long as 30 years.”\nThe system is also capable of producing theatrical lighting effects and themes that can be programmed for home run celebrations and other special events.","domain":"optical_engineering"}
{"url":"https://stellascience.com/virtual-image/","date":"2020-09-22T00:14:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400202686.56/warc/CC-MAIN-20200922000730-20200922030730-00411.warc.gz","language_score":0.9568032026290894,"token_count":172,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__143232052","lang":"en","text":"The Virtual Image consists of two identical concave parabolic mirrors. When an object is inserted near the centre of the mirror below, (and is close to the other mirror with a hole in the middle), the object appears as if it is in the air and on the mirror with a hole. Since the middle point of a mirror is the focus of another mirror, the object appears as if it is in the air – this is the result of the reflection between the two mirrors.\nStella Science is the brand of Renko Company, which was established in 1984 and is a private company with headquarters located in Ankara, Turkey. We use high quality workmanship and advanced Technologies in our products manufacturing.\nStella Exhibits Center Karşıyaka Mah. 578.sok. No: 18 Gölbaşı / ANKARA","domain":"optical_engineering"}
{"url":"http://www.nbpetroleumcoke.com/cleaning-machine-c1520264.html","date":"2024-02-21T22:30:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473558.16/warc/CC-MAIN-20240221202132-20240221232132-00753.warc.gz","language_score":0.9320916533470154,"token_count":211,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__87560267","lang":"en","text":"Laser cleaning is the process of using laser to removing contaminants, such as rust, oil, oxides, etc., on steel and other surfaces . Laser cleaning is achieved through laser ablation. It allows the selective removal of the contaminants with little impact on the substrate. Why we need a laser cleaning machine ?\nCompared with old method such as dry-ice blasting, media blasting or cleaning using chemical solvents, we can remove many unwanted side effects by using laser cleaner. For example. if you use chemical solvents, it will produce a high amount of waste during process. if you use dry-ice blasting, the process will be very noisy and not efficient. Laser cleaning is a non-contact and non-abrasive process. It using laser light to blasts off the material from the surface layer. The process can be repeat , finishing surface is very clear. laser cleaning has same even better result compared with traditional method but the way in which the actual operation is completed is what makes laser cleaning different. Safer and more environmentally friendly","domain":"optical_engineering"}
{"url":"https://free-press-release-center.info/pr00000000000000262121.html","date":"2022-06-26T02:52:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103036363.5/warc/CC-MAIN-20220626010644-20220626040644-00428.warc.gz","language_score":0.8242878913879395,"token_count":1761,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__87089641","lang":"en","text":"OPTCORE Start to provide 40GBASE-SR4 40G QSFP+ SR4 Transceiver\nOptcore, a global professional optical transceiver and fiber media converters supplier, is pleased to announce the 40GBASE-SR4 40G QSFP+ SR4 Transceiver.\nJanuary 8, 2014 (FPRC) -- Optcore, a global professional optical transceiver and fiber media converters supplier, is pleased to announce the 40GBASE-SR4 40G QSFP+ SR4 Transceiver.\nOptcore¡¯s QSFP-40G-SR4 is a high performance and cost effective 40G QSFP+ SR4 transceiver designed for 40 Gigabit Ethernet (40GbE) applications. The 40G QSFP+ SR4 transceiver comply with QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4 specifications. It integrates four data lanes in each direction with each lane to giving an aggregated 40 Gbps bandwidth. Each lane supports link lengths of 100m on OM3 multi-mode fiber or 150m on OM4 multi-mode fiber.The optical transmitter incorporates a 4-channel 850nm VCSEL laser, a 4-channel input buffer and laser driver, control and bias blocks. The optical receiver incorporates a 4-channel PIN photodiode, a 4-channel TIA array, a 4 channel output buffer, control blocks.\n• High Channel Capacity: 40 Gbps per transceiver\n• Transmission data rate up to 11.1Gbps per channel\n• Support link length of 100m links on OM3 multi-mode fiber or 150m on OM4 multi-mode fiber\n• High Reliability 4-channel 850nm VCSEL laser\n• Electrically hot-swappable\n• Compliant with QSFP+ MSA\n• Compliant with IEEE 802.3ba 40GBASE-SR4\n• MPO Optical Connector\n• Operating temperature range:0~70oC\n• Power dissipation < 1.5 W\n• Supports DDM function\n• RoHS6 Compliant\n• Form Factor: QSFP+\n• Data Rate: 40Gb/s\n• Wavelength: 850nm\n• Fiber Type: MMF\n• Max Distance: 100m\n• Optical Components: VCSEL/PIN\n• Operating Temperature: 0~70oC\n• Diagnostics: Yes\n• Connector: MPO\n• Application: 40GBASE-SR4 40G Ethernet,Infiniband QDR,Fiber channel,high-performance computing networks\n• 40G Ethernet\n• Infiniband QDR\n• Fiber channel\n• QSFP-40G-SR4 40GBASE-SR4 QSFP+ SR4 optical transceiver,40Gb/s,MMF,850nm,100m, MPO Connector\nPlease contact OPTCORE at email@example.com for pricing and more information. You can also visit http://www.optcore.net/optcore/html_products/40GBASE-SR4-40G-QSFP+-SR4-Optical-Transceiver-687.html for the latest information.\nAbout Optcore Technology\nOptcore Technology is a developer and supplier of fiber optical transceiver and media converters. As a professional fiber optics supplier, Optcore designs, manufactures and markets a variety of fiber optic products including QSFP, SFP transceiver, GBIC transceiver, XFP transceiver, SFP Plus transceiver, XENPAK transceiver,X2 transceiver, 1x9 Pin transceiver, Fast ethernet fiber media converter, Gigabit ethernet fiber media converter and WDM ethernet fiber media converter. Optcore fiber optic products are widely used in data communication, Tele communication and network applications(WAN/LAN/SAN).\nThe product lines include:\n2Mb 1x9 Transceiver,52Mb 1x9 Transceiver,84Mb 1x9 Transceiver,350Mb 1x9 Transceiver,FE 1x9 Transceiver, OC-3 1x9 Transceiver, STM-1 1x9 Transceiver,FE CWDM 1x9 Transceiver,FE BIDI 1x9 Transceiver,OC-12 1x9 Transceiver,STM-4 1x9 Transceiver,OC-12 BIDI 1x9 Transceiver,GE 1x9 Transceiver,GE BIDI 1x9 Transceiver,GE CWDM 1x9 Transceiver,FC 1x9 Transceiver,OC-48 1x9 Transceiver,OC-48 BIDI 1x9 Transceiver,OC-48 CWDM 1x9 Transceiver,OC-48 DWDM 1x9 Transceiver,2GB FC 1x9 Transceiver.\nFE SFP Transceiver,FE BIDI SFP Transceiver,FE CWDM SFP Transceiver,FE DWDM SFP Transceiver,OC-3 SFP Transceiver,STM-1 SFP Transceiver,SGMII SFP Transceiver,GE SFP Transceiver,GE BIDI SFP Transceiver,GE CWDM SFP Transceiver,GE DWDM SFP Transceiver,1G FC SFP Transceiver,1000BASE-T SFP Transceiver, RJ-45 SFP Transceiver,OC-48 SFP Transceiver,OC-48 BIDI SFP Transceiver,OC-48 CWDM SFP Transceiver,OC-48 DWDM SFP Transceiver,2GB FC SFP Transceiver,GE CSFP Transceiver,3G CSFP Transceiver,4G SFP Transceiver,4G CWDM SFP Transceiver,4G DWDM SFP Transceiver, 4G BIDI SFP Transceiver .\n3G Video SFP Transceiver,SMPTE SFP Transceiver, HD-SDI SFP Transceiver.\nFE SFF Transceiver,FE BIDI SFF Transceiver,FE CWDM SFF Transceiver,OC-3 SFF Transceiver,STM-1 SFF Transceiver,GE SFF Transceiver,GE BIDI SFF Transceiver,GE CWDM SFF Transceiver,GE DWDM SFF Transceiver,1G FC SFF Transceiver.\nGigabit Ethernet (GE) GBIC, Gigabit Ethernet (GE) BIDI GBIC,Gigabit Ethernet (GE) CWDM GBIC,1000BASE-T Copper GBIC.\n8GB SFP Transceiver, 8GB CWDM SFP Transceiver,8GB DWDM SFP Transceiver,10G SFP+ Transceiver, 10G BIDI SFP+ Transceiver, 10G CWDM SFP+ Transceiver, 10G DWDM SFP+ Transceiver, 10G SFP+ Direct Attach Cable.\n8GB XFP Transceiver, 8GB CWDM XFP Transceiver,8GB DWDM XFP Transceiver,10G XFP Transceiver, 10G BIDI XFP Transceiver, 10G CWDM XFP Transceiver, 10G DWDM XFP Transceiver.\n10Gb X2 Transceiver,10Gb CWDM X2 Transceiver,10Gb DWDM X2 Transceiver,10Gb BIDI X2 Transceiver,10Gb X2 SFP+ Converter.\n10Gb XENPAK Transceiver,10Gb CWDM XENPAK Transceiver,10Gb DWDM XENPAK Transceiver,10Gb BIDI XENPAK Transceiver.\nEPON ONU, EPON OLT,GPON ONU,GPON OLT,10G EPON ONU,10G EPON OLT,10G GPON ONU,10G GPON OLT.\n40G QSFP SR4 Transceiver,40G QSFP LR4 Transceiver,40G QSFP AOC (Active Optical Cable)Transceiver,40G CFP Transceiver.\nSend an email to Sales of Optcore Technology Co., Ltd.\n+86 371 5667 1200","domain":"optical_engineering"}
{"url":"https://next.tnwcdn.com/news/mit-laser-cutter-ai-tool","date":"2024-02-20T23:06:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473347.0/warc/CC-MAIN-20240220211055-20240221001055-00705.warc.gz","language_score":0.9184185862541199,"token_count":392,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__47264536","lang":"en","text":"If you play around to make things in a workshop, you might’ve used a laser cutter to create things at one point. Usually, you would use different materials by trial and error method to reach the desired shape and function.\nHowever, researchers from MIT are making this process safer by using machine learning. The team from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) has come up with a technology called SensiCut, a material sensing platform for laser cutters that warns you of potentially harmful materials.\nThe tool consists of low-cost hardware components such as a Raspberry Pi Zero microprocessor board hosted in a 3D printed board. The module is then attached to the laser cutter and the neural network of the tool identifies various materials based on the speckled image of a material’s surface microstructure.\nYou can watch SensiCut in action below, where a researcher is getting suggestions for different materials while making a face shield.\nTo train SensiCut’s algorithm, the team used more than 38,000 images of 30 material types. The tool can also guide you to use different speeds and cut settings for different materials.\nMustafa Doga Dogan, PhD candidate at MIT CSAIL, said that this tool reduces the overall waste of materials in the workshop:\nBy augmenting standard laser cutters with lensless image sensors, we can easily identify visually similar materials commonly found in workshops and reduce overall waste. We do this by leveraging a material’s micron-level surface structure, which is a unique characteristic even when visually similar to another type. Without that, you’d likely have to make an educated guess on the correct material name from a large database.\nThe team believes that the tool could be used for 3D printers in the future too.\nGet the TNW newsletter\nGet the most important tech news in your inbox each week.","domain":"optical_engineering"}
{"url":"https://devonbeauty.com/product/eyelash-extension-magnifying-glasses/","date":"2024-04-16T16:35:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00177.warc.gz","language_score":0.934429407119751,"token_count":243,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__27469745","lang":"en","text":"Eyelash Extension Magnifying Glasses\nEyelash extensions require precision and accuracy, which can be difficult to achieve with the naked eye alone. Fortunately, there’s a solution to this problem: eyelash extension magnifying glasses. These glasses come with five different lenses, each with a different level of magnification: 1x, 1.5x, 2x, 2.5x, and 3.5x. This means you can choose the level of magnification that works best for you, depending on your needs and preferences.\nUsing these magnifying glasses can make a big difference in the quality of your work. With the added magnification, you’ll be able to see your work more clearly and make more precise adjustments. This can lead to better-looking eyelash extensions and happier clients.\nIn addition to their practical benefits, these glasses are also comfortable to wear. They come with an adjustable headband that fits securely and comfortably around your head, so you can wear them for extended periods without discomfort. Overall, if you’re a professional eyelash extension artist, these magnifying glasses are an excellent investment that can help you take your work to the next level.","domain":"optical_engineering"}
{"url":"https://www.bbcdigital.com.au/different-colours-how-come-your-prints-dont-match-your-monitor/","date":"2021-04-20T17:13:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039476006.77/warc/CC-MAIN-20210420152755-20210420182755-00398.warc.gz","language_score":0.9376070499420166,"token_count":272,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__55042615","lang":"en","text":"Images on a monitor are composed of light-emitting diodes in the form of pixels. However, printers work with paper, which is not made up of light and pixels. Printers are forced to work with dyes and pigments to replicate colours on paper. Each device uses different technology to create the finished product, sometimes resulting in mismatching colours.\nComputer monitors use RGB colour modes to create colours on the screen, while printers rely on CMYK colour modes to put these colours on paper. RGB mixes the primary colours red, green, and blue in different quantities to create the colours on your screen. The RGB gamut is composed of every colour that exists in light, therefore the pixels on a monitor can each display almost 17 million colours. CMYK, on the other hand, creates colour by combining four base colours: cyan, magenta, yellow, and key (black) in varying degrees. This limits the distinct colours that can be created using CMYK to only a couple of thousand. Colours from your monitor are being converted from RGB to CMYK during the printing process. Because of the technology they rely on to print, printers cannot replicate all of the colours a monitor can display. CMYK’s limited colour options often times yield duller and darker colours than those you see on your screen.","domain":"optical_engineering"}
{"url":"https://rrc.nbrp.jp/references/30804","date":"2023-02-03T02:52:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500042.8/warc/CC-MAIN-20230203024018-20230203054018-00464.warc.gz","language_score":0.7307649850845337,"token_count":590,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__103483552","lang":"en","text":"Reference - Detail\n|Author||Kimura E, Deguchi T, Kamei Y, Shoji W, Yuba S, Hitomi J.|\n|Title||Application of infrared laser to the zebrafish vascular system: gene induction, tracing, and ablation of single endothelial cells.|\n|Journal||Arterioscler Thromb Vasc Biol|\nOBJECTIVE:Infrared laser-evoked gene operator is a new microscopic method optimized to heat cells in living organisms without causing photochemical damage. By combining the promoter system for the heat shock response, infrared laser-evoked gene operator enables laser-mediated gene induction in targeted cells. We applied this method to the vascular system in zebrafish embryos and demonstrated its usability to investigate mechanisms of vascular morphogenesis in vivo.\nAPPROACH AND RESULTS:We used double-transgenic zebrafish with fli1:nEGFP to identify the endothelial cells, and with hsp:mCherry to carry out single-cell labeling. Optimizing the irradiation conditions, we finally succeeded in inducing the expression of the mCherry gene in single targeted endothelial cells, at a maximum efficiency rate of 60%. In addition, we indicated that this system could be used for laser ablation under certain conditions. To evaluate infrared laser-evoked gene operator, we applied this system to the endothelial cells of the first intersegmental arteries, and captured images of the connection between the vascular systems of the brain and spinal cord.\nCONCLUSIONS:Our results suggest that the infrared laser-evoked gene operator system will contribute to the elucidation of the mechanisms underlying vascular morphogenesis by controlling spatiotemporal gene activation in single endothelial cells, by labeling or deleting individual vessels in living embryos.\n|MeSH||Animals Animals, Genetically Modified Blood Vessels / embryology* Endothelial Cells / radiation effects* Gene Expression Heat-Shock Response* Infrared Rays* Lasers Models, Animal Neovascularization, Physiologic / genetics Sensitivity and Specificity Transcriptional Activation* Zebrafish|\n|WOS Category||PERIPHERAL VASCULAR DISEASE HEMATOLOGY|\n|Paramecium||KNZ1207 (PC122021A) Yad1g1N (PB031010B)|","domain":"optical_engineering"}
{"url":"http://ecotone.com/technology/","date":"2017-11-24T12:37:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934808133.70/warc/CC-MAIN-20171124123222-20171124143222-00377.warc.gz","language_score":0.8935860395431519,"token_count":391,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__139202827","lang":"en","text":"Hyperspectral Imaging is a remote sensing method in which spectral information is used to identify Objects Of Interest (OOI).\nHyperspectral means: The spectral resolution of captured data goes far beyond RGB and the human eye. As a result, very precise object detection and classification can be automatically performed. This already has wide applications from airborne platforms.\nWe have developed and patented a system for Underwater Hyperspectral Imaging (UHI), in which statistical methods are employed to correct for the inherent optical properties of the seawater column.\nOur UHI is an underwater push-broom scanner pointed perpendicular (90°) towards the sea floor and towed by an ROV, along with a rig of external lights. Reflectance data are recorded in lines perpendicular to the ROV’s travelling direction, as the light bounces back from the seabed and hits the scanner.\nReflectance data are noise-filtered, enhanced and geo-corrected to produce hyperspectral maps.\nUsing a library of spectral fingerprints, we can then identify OOI and automatically map large seafloor areas to reveal their coverage and distribution.\nUHI reflectance data are processed into hyperspectral images. Above, a particular benthic species is detected and highlighted to show its distribution.\nRequirements for detailed habitat- and organism mapping are continuously tightened. An important goal is to monitor changes to the conditions of certain species and habitats over time; to assess biological impact of subsea operations and develop more viable and environment-friendly procedures.\nCompared to current methods, Ecotone UHI represents a time-saving and cost effective solution to these concerns. It is also more precise, and does not depend on the subjective considerations of each individual operator.\nQuestions or suggestions about Ecotone UHI or related technology?\nTalk to us! Call, email or use the contact form at the bottom of this page.","domain":"optical_engineering"}
{"url":"https://stackstreet.com/the-demand-of-laser-technology-for-biomedical-applications/","date":"2016-10-24T03:26:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988719465.22/warc/CC-MAIN-20161020183839-00261-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.8981403112411499,"token_count":539,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__42214256","lang":"en","text":"The burgeoning field of biomedicine is resulting in an increased demand in laser technology for biomedical applications. The laser industry has responded to meet that demand. Below are a few examples of how laser technology is evolving for biomedical applications.\nTrue UV Flow in Cytometry\nFluorescence detection has been used in cytometry and other biomedical applications. In cytometry, laser beams are used to excite cells tagged with fluorescent probes where their signals can be segmented into different wavelength bands. A recent trend is to use ultraviolet lasers in this process, but it’s posed some challenges such as green noise, cost, and concerns about using high powered lasers on live cells.\nOne solution that enables true UV flow in cytometry is the use of optically pumped semiconductor laser technology to generate true continuous wave ultraviolet output without green noise, and with adjustable power output (source: “Lasers meet changing demands of biomedical applications,” Coherent, http://www.coherent.com/downloads/BiomedicalApplications_2015.pdf).\nThe Noble Prize in Chemistry in 2014 went to Eric Betzig, Stefan W. Hell, and William E. Moerner for their pioneering super-resolution microscopy techniques that have finally broken the previously insurmountable diffraction limit. Like cytometry, some optical super-resolution techniques use lasers that excite fluorescence. These techniques are used to prepare temporary states of bright or dark fluorescence.\nChanging the power of a laser beam helps to control the extent of the brightening, or bleaching, of fluorescence. Using a series of images and algorithms, each imaged area can be stitched into a larger, high resolution image. These microscopy applications require lasers with low noise, high power, adjustable power, and new wavelengths for photobleaching. Again, optically pumped semiconductor laser technology is well suited for this particular biomedical application.\nYale researchers have recently developed an electrically pumped semiconductor laser that shows great promise in biomedical imaging, photolithography, and other applications. This new laser offers high brightness, on the par of traditional lasers but without their image corruption issues (speckle). While light emitting diodes are commonly used as a light source, they lack the power required by many biomedical applications requiring high speed imaging. This new electrically pumped semiconductor laser could lead to the next generation in biomedical imaging (source: “New Laser Could Significantly Improve Biomedical Imaging,” MED Device Online, http://www.meddeviceonline.com/doc/new-laser-could-significantly-improve-biomedical-imaging-0001).","domain":"optical_engineering"}
{"url":"https://www.aspireias.com/daily-news-analysis-current-affairs/Blazars","date":"2021-08-01T11:31:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154175.76/warc/CC-MAIN-20210801092716-20210801122716-00597.warc.gz","language_score":0.8677489161491394,"token_count":147,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__165433536","lang":"en","text":"23 June, 2020\n5 Min Read\nStudy of optical properties of super-massive black-hole can provide clue to emission mechanism from its close vicinity\nThrough 153 nights, 17 scientists from 9 countries in Europe and Asia including researchers from Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, an autonomous institution of the Department of Science and Technology (DST), Government of India took 2263 image frames and observed the changes in a very high energy gamma-ray emitting blazar ‘1ES 0806+524’ using seven optical telescopes in Europe and Asia.\nCopyright© Aspire IAS Academy. All rights reserved. Powered by CLT Technologies & Edu-Publishers Private Limited.","domain":"optical_engineering"}
{"url":"http://www.phototechnique.com/how-to/lens-tips/","date":"2014-08-28T09:04:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-35/segments/1408500830721.40/warc/CC-MAIN-20140820021350-00411-ip-10-180-136-8.ec2.internal.warc.gz","language_score":0.9303600788116455,"token_count":607,"dump":"CC-MAIN-2014-35","global_id":"webtext-fineweb__CC-MAIN-2014-35__0__209421657","lang":"en","text":"Buy Wide Maximum Aperture Lenses\nThere are many examples where manufacturers have two or more lenses with the same focal length range but one is much more expensive. This is usually because the maximum aperture is wider. There are several advantages to wider maximum apertures. First, the ability to shoot handheld in lower light levels without raising the ISO (so enabling better quality images, or shots you couldn’t otherwise take). Second, the ability to create very shallow depth of field for creative effect. And third, the fact that you’ll get a brighter viewfinder (which also often results in faster AF). So in short, if you can afford a wider maximum aperture, go for it.\nUse Primes For Best Quality\nZoom lenses are deservedly popular for their convenience, but prime lenses, which offer only a single focal length, have many advantages. First, the optical quality is usually superior, because it has been optimised to be master of a single focal length, rather than a jack of many. Second, prime lenses are smaller and lighter than zooms. Even though two or three primes may be heavier than one zoom that covers all their ranges, you’ve only got one on your camera at a time. Third, the maximum apertures are usually wider. Finally, prime lenses can often be inexpensive, especially the 50mm standard lens.\nTips For Telephotos\nShoot sports and wildlife\nMake distant subjects seem closer\nFill the frame\nShoot candids without being seen\nBeware of camera shake\nAs well as magnifying the scene, telephoto lenses also magnify any shaking in your hand – as you’ll know if you’ve ever tried to hold a pair of binoculars steady. This means you’ll need to use faster shutter speeds than you would with shorter lenses if you want to avoid camera shake. A rule of thumb is to not shoot at shutter speeds lower than the focal length you’re shooting at, so stay above 1/300th sec if using a 300mm lens. When shopping for a telephoto or tele-zoom it’s well worth investing in one with optical imagestabilisation built in, if you’re a Canon or Nikon user – though if you use Pentax, Sony or Olympus this feature is built into the camera.\nIsolate the subject\nTips for Wideangles\nGet more in\nWideangles let you get more in shot without having to step back. They’re great for group shots in confined spaces, or large buildings without having to walk such a long way back.\nIncrease the sense of distance\nWideangles increase the perception of relative distance between objects within the scene, making distant objects seem much further away, and much further from elements closer to the lens. So they’re ideal for ‘elongating’ a scene.\nWideangles can distort straight lines\nThere are no comments yet, add one below.","domain":"optical_engineering"}
{"url":"https://businessster.com/the-top-5-benefits-of-led-grow-lights/","date":"2024-02-26T02:32:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474649.44/warc/CC-MAIN-20240225234904-20240226024904-00137.warc.gz","language_score":0.9597147107124329,"token_count":1121,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__79972558","lang":"en","text":"For comparison, the lamps used in HPS growth lamps are generally exchanged after only 12 months of normal use and can replace more than $ 100. Even at their lower initial cost, HPS growth lamps can become more expensive than LED lighting in just a few years once the cost of replacement lamps is taken into account. When you also consider the additional savings LEDs that come from being more energy efficient, less demanding on cooling systems and eligible for discounts, LEDs are the most cost effective lighting solution. Growth LED lamps can be placed closer to plants than HID lamps due to their low heat output, sometimes as close as a few centimeters! This is beneficial for producers who grow in areas limited by height. This function also allows producers to place the lights closer to the plants to ensure optimal light penetration in the awning.\nA single accessory can provide multi-storey lighting, spreading the lighting evenly throughout the room. Because these accessories are specially designed for growth light purposes, they usually offer a more complete spectrum of light spectrum than cheaper lamps. In addition, producers can expect an increase in diode efficiency in the coming years, enabling more µmol per watt to be emitted. With 48% energy savings over traditional growth lighting at the moment, expect more than 50% energy savings at a lower cost per watt in early 2018 with some of the best LED growth lights In the past fifty years, the experienced producer has used innovation to absorb the difficult by-products of high-pressure sodium lamps.\nThe wavelength or light spectrum produced by LED growth lamps was one of the fastest areas of progress. Different light lengths have different effects on the growth of a plant. The combination of wavelengths produced by a light source is known as a light spectrum. Initially, the growing LED lamps were only able to produce very specific light wavelengths, mainly red and blue. This put them at a disadvantage for HID light sources with fixed spectra that were closer than plants needed. With advances in LED technology, we are now able to grow full spectrum lights that are perfectly adapted for any stage of plant growth.\nA winter harvest of herbs and vegetable salad can also be grown under light. By learning how plants use light and about accessory options, you can select an indoor lighting system suitable for the plants you want to grow. You get more than 50,000 hours of growing LED light, which is more than you get with your traditional lighting.\nUnlike the unique fixed spectrum produced by HID accessories, LEDs are available in different colors, allowing them to mix and combine to create a light spectrum optimized for plant growth. This results in higher yields because light is delivered to the factory in a way that is easier to use in photosynthesis. Adjusting the spectrum of your light is an option that only LEDs offer, since HIDs are only able to produce a light spectrum. Originally, LEDs were unable to produce light intensity at the wavelengths required for indoor growth. The lower operating temperatures of the growing LED lighting are advantageous in hydroponics for a few reasons.\nGrowth LED lamps consume less watt to produce about as much usable light as HID lamps. A manufacturer can use LEDs to supply more PAR to its factories per watt of electricity. If you choose to grow your plants in a greenhouse, you already know how valuable natural sunlight is to grow them. After all, plant life has developed a complex system of biological processes around the solar signals. And if you’ve chosen to take advantage of the sun’s specific light spectrum, it makes sense that you want to choose variable spectrum LED lamps to complement those natural rays. Although HID and fluorescent lamps will only operate your plants with a limited spectrum, LED growth lamps help you mimic the wavelengths of the sun .\nI recently visited a vertical city farm where LED accessories shed red light and blue light to stimulate vegetable crops to blossom and give birth to fruit. It was super interesting, but it also looked like a disco and that’s not the kind of light most gardeners want in their interior. However, many LED growth lights are classified as full spectrum, meaning they are very similar to natural sunlight and emit white light that pleases the eye. This is the type of light bulb you will find in Oslo’s LED Grow Light Gardens. Due to the energy efficiency of LEDs, grow lights that LEDs use create much less heat compared to traditional light sources.\nOther producers, generally those who carry out large-scale activities, prefer HID lighting because they provide the most intense light. HIDs naturally have their own challenges: they consume much more energy than LEDs and also force the producer to invest in additional equipment, such as extractor hoods and exhaust fans. But if your main goal is to maximize the amount of crops your garden produces, HID is probably the right choice. Our growth lighting can last 50,000 hours before your light output drops significantly. This means that growth lighting with LEDs can be on average about 10 years of normal use (12 hours on – 12 hours off) before they need to be replaced.\nBy hanging your accessories closer to the awning, this effect is reduced and the light is directed towards the desired areas. A unique advantage for growers who buy cannabis grow lights with LED technology is the availability of discounts from utilities. With the recent boom in indoor grow lights cultivation, utilities are seeing unprecedented demand for electricity, putting the grid under great pressure. Depending on your local guidelines, you can get between 20 and 90 percent of the total LED lighting growth cost you buy reimbursed by your local utility company.","domain":"optical_engineering"}
{"url":"https://nexthorizonsspaceflight.com/2021/02/22/perseverance-images/","date":"2023-05-31T15:33:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646937.1/warc/CC-MAIN-20230531150014-20230531180014-00320.warc.gz","language_score":0.9333716630935669,"token_count":828,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__92197237","lang":"en","text":"Launched in July of 2020, and landing just a few days ago Perseverance is NASA’s newest rover on Mars. Following in the tracks of Sojourner, Spirit, Opportunity, and Curiosity; Perseverance will explore the Martian surface, this time starting off in the Jezero Crater. Perseverance is searching for possible evidence of past life on Mars. While it is equipped with a wide array of instrumentation; the camera’s are possibly the most interesting. With 23 cameras, we can expect a wide array of imagery throughout Perseverance’s life.\nSeven cameras are dedicated specifically to the entry, descent, and landing of the vehicle. These include cameras on the back shell aimed up at the parachute, cameras on the descent stage aimed down at the rover, a camera on the rover looking up at the descent stage, and a camera on the rover looking down at the surface.\nPerseverance also carries a wide array of science and engineering cameras. There are three types of engineering cameras on Perseverance; HazCams, NavCams and the Cache Cam. Alongside these cameras, for the first time ever we have microphones on the surface of Mars.\nThese cameras share a common 20mp sensor but the lenses vary based on the cameras specific purpose. The Hazcams, or Hazard Avoidance Cameras are at the front and rear of the rover, and are used to avoid obstacles that may be in the path of the rover and to determine where to move the robotic arm.\nNASA releases raw images from these cameras here. The images shared are not all color images, but can be processed into a color image by combining the red, green and blue channels.\nWhile this processing can be done in an image editing program like photoshop, Christopher Becke shared a simple online tool which can be used to create your own color images from Perseverance.\nThe Navigation cameras, or navcams, aid the rover in navigating the Martian surface. The two color cameras aid in both remote operation of the rover from earth and the autonomous driving of the rover.\nThe last engineering camera on Perseverance is the Cachecam. The cache camera is used to take pictures of the rock samples and sample tubes as they are collected from the surface of Mars. Perseverance will be collecting and sealing samples of soil and rock for future collection- to prevent any possible contamination of the rock by future Mars missions.\nTwo types of science cameras are mounted on the mast of Perseverance, these are the Mastcam-z and Supercam. The Mastcam consists of two color cameras in order to provide a 3d view and is also capable of taking videos. The Supercam is used to measure the chemical composition of rocks from a distance. A high power laser is fired and the camera looks at the flash of plasma to measure the specific wavelengths of light created in order to determine its composition.\nThe final three science cameras; PIXL, SHERLOC and WATSON are all mounted on Perseverance’s robotic arm. This allows them to get extremely close to the surface and gives them the greatest amount of flexibility in where they are aimed.\nPIXL stands for Planetary Institute X-Ray Lithochemistry. It is able find chemical fingerprints on a point the size of a grain of sand in search of any traces of life that past microbes may have left behind.\nSHERLOC consists of lasers and Spectrometers to measure composition but also a macro camera to get extremely closeup images. SHERLOC also has spacesuit material to determine how well the material holds up in the Martian atmosphere.\nWATSON is a wider camera that helps provide context between the extremely closeup imagery from SHERLOC and the wide shots shown from the Mastcam.\nEarlier today NASA released video of Perseverance landing. We can expect a great deal of valuable data in the coming days. History is being made each and everyday, and the data gained from this mission will help prepare us for a future where people may visit Mars.","domain":"optical_engineering"}
{"url":"http://articles.org/three-technical-skills-about-the-infrared-wireless-ip-camera-troubleshooting/","date":"2015-12-01T23:47:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398474527.16/warc/CC-MAIN-20151124205434-00300-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.9029307961463928,"token_count":1022,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__77955567","lang":"en","text":"In the world of the night, pitch dark, it all can not see, let alone monitor. Indeed, security network camera, night vision has been a troubled everyone’s problem. Dim light and infrared imaging is to use existing security technology, the most widely used night vision technology. Low light level imaging is mainly used in anti-terrorism investigation, the night vision of military operations, and infrared night vision imaging is mainly used for night surveillance cameras to monitor more. Of course, the two interludes, such as dim light surveillance ip camera and infrared night vision products.\nSince the two kinds of night vision technology are very good, whether they have had PK? Today we have to view large collision time, compare the difference of infrared imaging and low light level imaging, and their advantages and disadvantages.\nFirst, to introduce two kinds of night vision technology.\nLow light level imaging technique\nNight vision technology, also known as the image intensifier technology, with like intensifier tube night vision goggles, night sky illuminated by a weak target image enhancement for the observation of optical imaging technology. The shimmer technology is an important part of the photoelectric high-tech. Image intensifier night vision products are the core devices, the use of image enhancement to the weak natural light in the night sky light such as moonlight, starlight, atmospheric gray reinforced hundreds of times a few times to reach the human eye to long-distance observation level. Yellow-green light is the human eye is most sensitive to the wavelength, the color of the screen is often applied to the on increasing like. We see in the film and television special forces night vision imaging, the picture showing the yellow-green night vision lens is for this reason.\nInfrared imaging technology\nThe infrared waterproof ip camera night vision technology is divided into active infrared night vision technology and passive infrared night vision technology. Active infrared night vision technology night vision technology is mainly implemented through active exposure and use of infrared light reflected infrared source observed, corresponding to the equipment for active-infrared night vision. The passive infrared night vision technology with the goal itself emission of infrared radiation to achieve the observed infrared technology to find the target, which according to the temperature difference between the target and background or target or thermal radiation. Their equipment for the thermal imager. Active infrared system of security monitoring camera and equipment at this stage, the application of passive infrared system is also less.\nWhen the light level imaging technology encountered in infrared technology, in the end one is better? Low light level imaging technology and infrared imaging technology compared, each has its own obvious advantages.\nLow light level imaging technology advantages\nLow light level imaging technology is the reason why a large number of applications by national armed forces in night vision, because of its comprehensiveness. The technology compared to infrared technology, no infrared light emitting infrared, and do not need to be observed object must have heat. Thus well adapted to the army to fight in different environments. Select infrared imaging technology, have to consider the loss of infrared light and maintenance, the second to consider whether the object was observed own-containing heat. Low light level imaging technology does not need to consider so much, With only the natural light can reach night-vision effect. At the same time, the clear night vision images, small size, light weight, low price, convenient use and maintenance, less susceptible to electronic surveillance ip camera and jamming a wide range of applications, is also the infrared night vision imaging incomparable.\nThe disadvantage of the low light level imaging technology\nThe shortcomings of low light level imaging technology is susceptible to the surrounding environment. Afraid of light, with the phenomenon of vignetting. Night vision in the face of strong light can not be observed, the observer will feel dizzy. Low light level image contrast and gray-scale is limited, the instantaneous dynamic range, high gain, flashing, only sensitive to the target scene reflection, and the thermal contrast of the target scene.\nThe advantages of infrared imaging technology without the aid of its external environment light itself emit infrared light for night vision imaging.\nA wide range of night vision, little affected by environment. Used for building ir ip camera , mainly because it is without the aid of natural light, suitable for indoor use. The passive infrared technology, infrared thermal imaging, without the rain, snow, wind, frost and other adverse environmental impact, clear imaging, high accuracy and can identify camouflage and anti-jamming. Unlike night vision infrared thermal imaging system, as with the natural light, but by the radiation of the target and background scenery images, infrared thermal imaging system 24 hours a day work. Even in the daytime through the thermal imaging monitor.\nThe disadvantage of the infrared imaging technology\nThe disadvantage of infrared technology is that the infrared ip camera image is only sensitive to radiation, the target scene is not sensitive to the brightness of the scene. The technology must be by means of infrared light emission of infrared thermal imaging requires a temperature of an object and the intensity of the infrared, unable to adapt to the monitoring requirements under different circumstances.","domain":"optical_engineering"}
{"url":"https://www.jeduka.com/poland/mazowieckie/warszawa/warsaw-university-of-technology-course-arts-m-sc--in-photonics","date":"2019-08-21T22:32:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027316549.78/warc/CC-MAIN-20190821220456-20190822002456-00494.warc.gz","language_score":0.8955047130584717,"token_count":145,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__38750647","lang":"en","text":"20 Faculties covering almost all fields of engineering and technology.\nMulti-layered study programmes supported by an advanced scientific research.\nExtensive range of scientific and research works, including partnerships with many universities, reserach institutions and high-tech industries.\nAbout M.Sc. in Photonics\nThe M. Sc. in Photonics at Warsaw University of Technology teaches students fundamental notions on optics and photonics, including new trends and research results on lasers, crystal fibres, optical waveguides, displays, holography, and more. The Master prepares students for the challenges of the photonic industry, with courses in terahertz technology, photovoltaic issues and solid-state optics","domain":"optical_engineering"}
{"url":"https://www.kndisplay.com/news/What-is-Laser-Cutting%3F-107.html","date":"2024-04-12T11:54:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00842.warc.gz","language_score":0.9327046275138855,"token_count":631,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__48289970","lang":"en","text":"Laser cutting is mainly a thermal process in which a focused laser beam is used to melt material in a localised area. A co-axial gas jet is used to eject the molten material and create a kerf. A continuous cut is produced by moving the laser beam or workpiece under CNC control.\nIt is a technology that uses a laser to cut materials and is typically used for industrial manufacturing applications, but is also starting to be used by schools, small businesses and hobbyists. Laser cutting works by directing the output of a high-power laser, by computer at the material to be cut.\nThe difference with CNC cutting is how the cutting occurs. Instead of a cutting tool, a laser relies on heat to create the desired shape of the product. While traditional CNC cutting carves out the design, laser cutting relies on a high-energy light beam that burns through the metal material.\nHere are the benefits of laser cutting:\n1) Laser cutting is a manufacturing process which can eliminate the need for machining on many engineering jobs, enabling you to save money on manufacturing costs.\n2) Laser cutting presents certain advantages over plasma cutting as this process is more precise and uses less energy when cutting steel and aluminium sheets.\n3) The precision levels and edge quality achieved with laser cutting machines are better than traditional cutting methods, as the laser beam will not wear during the laser cutting process. Laser cutting technology also enables us to cut complex shapes without the need for tooling and at a similar or faster speed than other cutting methods.\n4) The fact that laser cutting technology offers reduced contamination of the workpiece presents certain advantages over traditional mechanical cutting techniques.\n5) Laser cutting also allows us to cut small diameter holes with complex detail and good edge quality in either sheet, plate, tube or box section.\nCut width can be extremely small with laser cutting, less than 0.001 inch, and dimensional accuracy is extremely precise, at about ± 0.0005 inch. This accuracy is very useful for producing the jagged teeth used in some cutting tools.\nHere are the disadvantages of laser cutting:\n1) Laser cutting demands high power consumption as compared to other techniques.\n2) The laser beam is very delicate to handle.\n3) The laser beam is harmful if it comes in contact with human workers.\n4) Laser cutting is still not capable of cutting thick metals.\nIt is important to know that laser cutting machines tend to run at a higher cost than an engraving machine, and this is due to power consumption and consumables. Laser cutting and engraving machines require the use of a PC to communicate and carry out tasks effectively.\nNever cut these materials by laser cutting:\nPVC (Poly Vinyl Chloride)/vinyl/pleather/artificial leather\nThick ( >1mm ) Polycarbonate\nHDPE/milk bottle plastic\nLaser cutting is a precise thermal cutting process, utilizing a focused beam of light. Plasma cutting, on the other hand, uses a mixture of gases to form a cut.","domain":"optical_engineering"}
{"url":"http://www.a2zbuzzhub.com/laser-camera-can-see-the-hidden-objects","date":"2019-02-18T20:03:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247488374.18/warc/CC-MAIN-20190218200135-20190218222135-00175.warc.gz","language_score":0.9555578231811523,"token_count":280,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__65287543","lang":"en","text":"Lasers are implemented in various equipments like scanning machines, cameras, etc. Rather than any other cameras, the laser implemented camera captures the images very well, especially the objects behind the corners. Isn’t this a special technology that assists in collisions? Definitely it is…\nTo capture the hidden objects becomes ease with lasers due to the light travel technology. Since the lights of the laser travels any distance and anywhere, and camera or scanner can measure the numbers of time that the pulses take to return. It assists in capturing even the 3D objects, as the measurement uncover the secret about how far the pulses travel and reform the original images that look in 3 Dimension.\nIt seems to be amazing that objects behind the walls or corners are captured. But, it’s very true that the objects are captured from far distance and even behind the walls or screen. The technology behind this act is simple. The laser light usually reflects back to the camera or scanner by capturing the objects as well as other surfaces with its light.\nSuch kind of laser camera best works for the vehicle like cars, etc. This helps to avoid any collisions by tracking the hidden vehicles that arrive from behind. as well as small vehicles that are on sides of the car. Another important thing about this camera is that, it is capable enough to capture far objects (for about 100 miles) in a better way.","domain":"optical_engineering"}
{"url":"https://www.resheji.com/data/Paper/189.html","date":"2020-11-28T07:08:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195198.31/warc/CC-MAIN-20201128070431-20201128100431-00504.warc.gz","language_score":0.9155206084251404,"token_count":767,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__175621097","lang":"en","text":"Thermal Management of LEDs: Package to System\nMehmet Arik, Charles Becker, Stanton Weaver, and James Petroskic\nAbstract:Light emitting diodes, LEDs, historically have been used for indicators and produced low amounts of heat.\nThe introduction of high brightness LEDs with white light and monochromatic colors have led to a movement towards general illumination. The increased lectrical currents used to drive the LEDs have focused more attention on the thermal paths in the developments of LED power packaging. The luminous efficiency of LEDs is soon expected to reach over 80 lumens/W, this is approximately 6 times the efficiency of a conventional incandescent tungsten bulb. Thermal management for the solid-state lighting applications is a key design parameter for both package and system level. Package and system level thermal management is discussed in separate sections. Effect of chip packages on junction to board thermal resistance was compared for both SiC and Sapphire chips. The higher thermal conductivity of the SiC chip provided about 2 times better thermal performance than the latter, while the under-filled Sapphire chip package can only catch the SiC chip performance. Later, system level thermal management was studied based on established numerical models for a conceptual solid-state lighting system. A conceptual LED illumination system was chosen and CFD models were created to determine the availability and limitations of passive air-cooling.\nKeywords: Solid-state lighting, LEDs, Thermal management, CFD, Convection.\nThe introduction of the first practical visible solid state LED occurred in 1962, and was invented by Nick Holonyak of the General Electric Company [Holonyak, 1992]. It was discovered that the wavelength of an infrared GaAs diode could be shifted to the visible spectrum by the introduction of phosphate dopants. The introduction of a compatible large band gap material raises the overall band gap thus shifting emission into the visible spectrum.\nThermal Management of Solid State Lighting Devices\nAlthough it is a fairly new market, LEDs as an alternative to conventional lighting products, brings some demanding thermal challenges. A typical LED lighting system is faced with the issues of decreasing the thermal resistance from junction to the substrate, and the availability of the orientation independent, cost-effective system level thermal solutions. The efficiency of solid-state lighting devices strongly depends on the junction temperature as given in Figure 1. A strong argument by solid state lighting advocates is the long life of the LEDs, which results in cheaper and more reliable illumination systems. Current LEDs are more sensitive to temperature than standard solid-state electronic components so that more attention must be paid to the thermal architecture.\nSummary and Conclusions\nHistorical development of LEDs and future perspectives for replacing conventional, energy-inefficient, high lumen, lighting systems were discussed. Thermal management is a key technology for creating reliable, high lumen, LED systems. Package level and system level thermal management constructs the overall thermal architecture. A successful design should have low thermal resistance between the junction and the heat sink base,which relies on conduction heat transfer. This is followed by system level thermal management, which includes heat sinks and extended surfaces. Active or preferably passive cooling with air will be the predominant choice for LED based illumination systems. Although it is expected that a lot of new thermal challenges will arise in the development solid state lighting systems, conventional semiconductor thermal management technology will enable many techniques to be easily-transferred to SSL. However cost, longer life expectations, and tight thermal envelope constraints will drive custom thermal solutions for LED based lighting systems.\nAuthors would like to acknowledge the financial support for this work provided by GELcore, Cleveland, and GE Global Research Center, Niskayuna.\n标签： 点击： 评论:","domain":"optical_engineering"}
{"url":"http://www.shutterphoto.net/article/the-focal-length-of-the-human-eye/","date":"2018-11-13T07:40:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741294.2/warc/CC-MAIN-20181113062240-20181113084240-00233.warc.gz","language_score":0.9542515873908997,"token_count":295,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__110209046","lang":"en","text":"I learned a really interesting fact today: The focal length of the human eye is equivallent to 17mm ~22mm. That means that a photo taken with a standard lens less than 17mm ~22mm will appear distorted compared to your normal vision. There are exceptions, of course. Most wide angles, despite their focal length, will also distort the image because of its angle of view.\nRemember to take your camera’s crop factor into account. Those with a Nikon DX format camera (D40, D60, D80, D90, etc) have a crop factor of 1.5 which means your 50mm lens acts like a 75mm lens and so on.\nFor more reading about the human eye’s optical characteristics, check out the Notes on the Resolution and Other Details of the Human Eye over at Clarkvision Photography.\nEdit – further research seems to lead me to believe that the focal length of the human eye is closer to ~22mm. The 17mm is actually based on studies of light coming out of the eye (the inverse)…as if you were to turn your lens around backwards on the camera. Of course the more I learn about this, the more I think that this isn’t such an exact number to pin down. I’m going to continue my research (mostly because I’m curious) and I’ll continue to post my findings as they come up.","domain":"optical_engineering"}
{"url":"https://motogoodies.com/10-outstanding-features-leica-r5-detailed-analysis/","date":"2024-03-04T12:23:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476442.30/warc/CC-MAIN-20240304101406-20240304131406-00131.warc.gz","language_score":0.8884966373443604,"token_count":554,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__201704195","lang":"en","text":"Deep Dive into the Leica R5\nConsidered a marvel in the field of photography, the Leica R5 melds cutting-edge technology with the classic artistry inherent to Leica. This detailed analysis unravels the unique features, operational efficiency, and how it carves a niche for itself in the photography landscape.\nHistorical Significance of the Leica R5\nLaunched in 1986, the Leica R5, a 35mm SLR camera, has carved its niche in photography history. As a successor to the Leica R4 and an integral part of the distinguished R-series from Leica Camera AG, it is celebrated for its seamless integration of mechanical and electronic aspects catering to both professional and novice photographers.\nAesthetics and User-Friendly Design\nDedicated to quality, Leica’s design principles shine through in the Leica R5. The robust metal body exudes durability, and its compact frame ensures easy handling. The control buttons and dials are intuitively placed for quick setting adjustments.\nSpecifications at a Glance\nThe Leica R5 is packed with impressive technical specifications. It offers manual and automatic exposure modes, with shutter speeds varying from 1/2000th of a second to 4 seconds. Its built-in through-the-lens metering system guarantees accurate exposures, and its interchangeable lens system enhances versatility in capturing diverse shots.\nThe Leica R5 is equipped with the Leica R-mount, compatible with an array of superior Leica lenses. Known for their sharpness, contrast, and color fidelity, these lenses augment the capabilities of the R5.\nPerformance and Image Quality\nThe Leica R5 upholds Leica’s high standards in performance. Its mechanical shutter ensures dependable operation, while its digital enhancements improve user experience. The image quality produced by the R5 is top-notch, characterized by sharpness and vibrant color reproduction.\nBuilt with superior materials, the Leica R5 is designed for durability. Its sturdy metal body is resilient to heavy usage, making it a trustworthy partner for all photographic endeavors.\nThe Leica R5 transcends being a mere camera; it’s a part of photographic heritage that consistently delivers superior performance and image quality. Its fusion of traditional artistry and modern innovation makes it an enduring tool for capturing memories.\nThis comprehensive analysis underlines that the Leica R5 is no ordinary camera but a photographic masterpiece in its league. Whether you’re a seasoned photographer seeking a dependable tool or an enthusiast looking to delve into photography, the Leica R5 offers an unmatched experience. Visit the remarkable features of leica v lux typ photographic brilliance for more insights.\nFor further reading about the Leica R5’s remarkable features, visit Wikipedia.","domain":"optical_engineering"}
{"url":"https://optitune.com/news/?page=3","date":"2021-05-14T16:30:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991428.43/warc/CC-MAIN-20210514152803-20210514182803-00262.warc.gz","language_score":0.902840793132782,"token_count":329,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__24972670","lang":"en","text":"Optitune have been commissioned to create a carefully engineered optical grade light trapping material for use in next generation multi touch devices. The collaboration will run through 2019 and hopefully will culminate in working devices at a commercial scale during 2020.Read more\nOptitune along with our fellow members of the Finland technology cluster will attend and exhibit our technology at IDTech. 13/11-15/11 San Jose.Read more\nOptitune have been commissioned to provide an optical grade specifically tuned refractive index coating for wearable smart glasses. The Optitune material will enable the next generation products to offer lighter and brighter transmitted images whilst also allowing full optical clarity for traditional ‘seen through’ functionality.Read more\nAs part of an EU Funded initiative with other partners Optitune are providing the durable high transmission outer coating for what may be the World’s first fully working Solar Canopy. Results indicate that the Optitune coating significantly increase power generation and crucially extends the life of the device by offering enhanced protection from the elements.Read more\nOptitune take a demonstration stand and presentation slot at the largest European printed electronics show 13/3-15/3 Munich.\nPicture Messe MunchenRead more\nAfter extensive testing and formulation. Work with our partner in Taiwan and Germany Optitune achieve an optical grade abrasion resistant coating that can be applied to metal surfaces at temperatures as low as 80 Celsius degrees. With hydrophobic properties and a water contact angle in excess of 100 degrees this material is ideally suited to high traffic metal areas as well as decorative surfaces and electronic device casings.Read more","domain":"optical_engineering"}
{"url":"https://lifehacks.my.id/2021/06/30/download-roccat-optical-mouse-gif/","date":"2021-07-28T22:19:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153803.69/warc/CC-MAIN-20210728220634-20210729010634-00465.warc.gz","language_score":0.8998202681541443,"token_count":284,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__105781121","lang":"en","text":"Download Roccat Optical Mouse Gif\nDownload Roccat Optical Mouse Gif. General the roccat kone pure optical is an optical mouse with the a3090 sensor. Roccat know that a lot of gamers love optical sensors and would rather have one over crazy high dpi laser sensors, which is why they've released the pure optical mouse.\nYou rest your entire hand on your mouse, with your index and middle finger laying flat on the main buttons and your thumb and pinky resting on either side. Видео обзоры roccat savu mouse black usb product tour: Search newegg.com for roccat mouse.\nThe roccat kone xtd optical gaming mouse also features roccat®'s comprehensive driver suite that provides total control over your mouse.\nOptical mice can help you achieve refined gaming movements and maneuvering without moving too quickly roccat gaming mice have ergonomic designs and are made with highly durable materials. The roccat kone xtd optical gaming mouse also features roccat®'s comprehensive driver suite that provides total control over your mouse. This is the fastest optical sensor currently in any mice and if you are an optical sensor purist, this is the best of the paperwork and cable sit underneath of this. Search newegg.com for roccat mouse.","domain":"optical_engineering"}
{"url":"http://www.allaccess.com/pollack-media/archive/8843/ces-review-part-2","date":"2016-10-27T03:22:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988721067.83/warc/CC-MAIN-20161020183841-00006-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.9323039650917053,"token_count":354,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__47114363","lang":"en","text":"CES Review, Part 2\nJanuary 19, 2011\nPollack Media Group President Tommy hadges continues his review of this year’s CES with a discussion of 3D TV.\nThe big new 3D TV development this year involves the use of passive glasses (lighter in weight & non-powered, exactly like the ones used in movie theaters), which utilize simple circularly-polarized filters (one clockwise & one counter-clockwise). Because each eye sees a constant image, it seemed much more comfortable while viewing this system.\nToshiba, JVC & LG had 3D sets on display using passive glasses that won’t be released until later this year, but Vizio had their XVT3D650SV 65” Theater 3D panel on display that had a soft launch at WalMart last month listing at $3699; the picture was excellent, with no crosstalk (shadow imaging of the 2 images on-screen), no flicker, high contrast & clarity. I believe this new system using passive glasses, if 3D TV does eventually achieve widespread acceptance, will eventually render the technology using active-shutter glasses obsolete.\nThe other new 3D TV development in the last year involved glasses-free displays. For smaller images (3” to 10”), the technology worked quite well in demos by Hitachi & Sharp. For larger displays, despite the impressive picture quality achieved by some manufacturers, it was absolutely necessary to remain at the specified distance from the display to see the 3D images clearly, which became grossly distorted when I moved either too close or too far away from the screens. For big displays, glasses-free 3D viewing will require much more refinement.","domain":"optical_engineering"}
{"url":"http://www.dqchannels.com/virtual-retinal-display-your-eye-is-the-screen/","date":"2019-03-21T23:01:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202572.7/warc/CC-MAIN-20190321213516-20190321235516-00426.warc.gz","language_score":0.9241219162940979,"token_count":1317,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__19862737","lang":"en","text":"The commercial launch of a device named Nomad by Bothell-based Microvision\nInc has turned fiction into reality. Nomad is a device based on the Virtual\nRetinal Display (VRD), a new display technology that projects modulated low\nenergy laser light directly onto the viewer´s retina, producing a rasterized\nThe viewer gets to see the source image as if he/she is standing two feet\naway in front of a normal CRT monitor. In reality, the image is on the retina of\nits eye and not on a screen. The quality of the image is excellent with stereo\nview, full color, wide field of view and no flickering characteristics.\nMicrovision has the exclusive license to develop and market the\nretinal-scanning technology, which was first patented by researchers at the\nUniversity of Washington’s Human Interface Technology Lab (HIT) in 1991.\nRetinal scanning was the brainchild of Tom Furness, Founder of the HIT. The\ndevelopment began in November 1993. The aim was to produce a full color, wide\nfield-of-view, high resolution, high brightness, low cost virtual display.\nA laser light that shoots directly on to the retina sounds dangerous. But,\nMicrovision says the technology is a lot safer because of the very low strength\nof the laser used. The power of the light is about a thousandth of a watt.\nBesides, the laser light does not stay fixed on one location of the retina\nand continuously sweeps across the retina at a very high rate both horizontally\nand vertically, making it much more safer. Some experts say that staring at a\nfluorescent bulb would be much more dangerous than the laser light in Nomad\nwhich produces light levels much lower than nationally accepted standards.\nHOW IT WORKS\nVRD works very much like a CRT monitor. But, in a VRD, the source image is\nprojected directly onto the retina instead of the back of the screen. In a\nconventional display, a real image is produced, which is either viewed directly\nor projected through an optical system and the resulting virtual image is\nWith the VRD, no real image is ever produced. Instead, an image is formed\ndirectly on the retina of the user’s eye. Unlike CRT monitors, the VRD has no\nphosphorus persistence but, depends on the light-gathering properties of the\nphoto-receptors and the temporal integration properties of the visual system.\nThe device which looks more like a virtual reality gaming headset consists of\nfive components, namely: drive electronics, light sources, scanner assembly,\npupil expander and viewer optics. The electronics acquire and process signals\nfrom data or an image source, say a graphic card or a video camera.\nThe signals contain vital information about the intensity and mix of the\ncolors which can be reproduced by the light source. The scanner then applies the\nimage to the retina. It is made up of a tiny mirror that sweeps the light beam\nuntil a full image appears to the user. The scanned beam is focused onto an\noptical element called an exit pupil expander.\nThe industry is in need of cost effective and portable devices that will\nconsume very lower energy and bandwidth and yet be powerful in all respects. The\nNomad Expert Technician System from Microvision is the first such device\ncurrently being marketed commercially for the auto industry technician.\n“It is a powerful, wearable information delivery tool that will help\nyour business achieve new levels of service productivity and customer\nsatisfaction,” says a dealer who sells this device for $3995 on the\nWith this device, technicians can read the detailed service information and\nfollow complex instructions directly at their point of task, head-up and\nhands-free. “No guessing, no shortcuts, no waiting for printouts just\ncars back in service faster, fixed right the first time. The Nomad Expert\nTechnician System is easy to set up and incredibly simple to use,” he adds.\nHonda is probably the first automobile company which has brought this device in\nto use among its dealers. The monocle is worn in front of the eye and reflects\nscanned laser light to the eye allowing mechanics to view car diagnostics and\ninstructions superimposed on their field of vision.\nAccording to Honda, it has found that technicians are saving about 40% in\nterms of the time spent working on engines, saving the company an estimated\n$2,000 per month, per technician.\nSurgeons have also tested a version of the system which gives them vital\npatient data, such as heart rate and blood pressure, as they operate. According\nto some reports on the Internet, around 100 of the see-through laser-based\ndisplays have been shipped to Iraq for use by the US Army’s Stryker Brigade.\nAPPLICATIONS IN THE OFFING\nVRD technology has many potential applications, from head-mounted displays for\nmilitary, aerospace, automobile applications to medical use. If you want data\nright in front of you, while on the move, this is the technology.\nIt could provide three dimensional realistic images in gaming applications.\nWithin few years, such systems may find a place in mobile phones, hand-held\ncomputers and digital cameras.\nThe present VRD devices are a little bulkier in size. The ultimate aim is to\nget this technology in form of lightweight eyewear. The device is for\nprofessionals from any industry who need data quickly and easily and are willing\nto pay the current high cost.\nBut over the year, the device is expected to be more affordable just like the\nhome computers. One day it could even replace the regular CRT or LCD monitors\nattached to our personal computers.\nCHARACTERISTICS OF VRD\n- Very small and lightweight, glasses mountable\n- Large field of view, greater than 120 degrees\n- High resolution, approaching that of human vision\n- Full color with better color resolution than standard displays\n- Brightness sufficient for outdoor use\n- Very low power consumption\n- True stereo display with depth modulation\n- Capable of fully inclusive or see through display modes\n- Does not block the user’s vision\nSource: Human Interface Technology Lab","domain":"optical_engineering"}
{"url":"https://bobpay.xyz/infrared-inventions-illuminating-the-unseen-world/","date":"2024-03-04T14:04:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00011.warc.gz","language_score":0.8966639041900635,"token_count":901,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__151968090","lang":"en","text":"In our technologically advanced world, certain innovations remain unsung heroes, quietly transforming industries and enhancing our lives. Among these, Infrared Inventions stand out as marvels that illuminate the unseen world around us. From healthcare to astronomy, the applications of infrared technology are vast and continually expanding.\nInfrared technology involves the utilization of infrared radiation, a type of electromagnetic radiation with longer wavelengths than visible light. Its applications are diverse, spanning various fields and contributing to advancements that were once unimaginable.\nHistory of Infrared Technology\nThe journey of infrared technology began with early experiments in the 19th century. Scientists discovered that certain materials could emit and detect infrared radiation, laying the foundation for future innovations. Milestones in the 20th century, such as the development of infrared cameras, marked significant progress in practical applications.\nHow Infrared Inventions Work\nUnderstanding the basics of infrared light and its wavelength is crucial. Devices like infrared cameras and sensors operate by detecting and interpreting the heat emitted by objects, revealing a world invisible to the naked eye.\nApplications in Healthcare\nInfrared imaging plays a pivotal role in medical diagnostics, enabling non-invasive examinations. From identifying abnormalities in blood flow to detecting tumors, healthcare professionals harness the power of infrared inventions for more accurate diagnoses. Physiotherapy also benefits from infrared technology, with devices aiding in pain relief and tissue repair.\nInfrared in Security Systems\nSecurity systems worldwide rely on infrared technology for surveillance and protection. Infrared cameras provide clear images in low-light conditions, contributing to effective monitoring. Infrared sensors trigger alarms and control access, adding an extra layer of security to homes and businesses.\nInfrared in Consumer Electronics\nWhile often unnoticed, infrared technology is present in our daily lives. Remote controls, a ubiquitous gadget, operate using infrared signals. Smartphones and various smart devices also incorporate infrared communication, allowing for seamless connectivity.\nInfrared in Agriculture\nAgriculture embraces infrared technology for crop monitoring and pest control. Infrared sensors detect subtle changes in plant health, enabling timely interventions. Precision agriculture, driven by infrared innovations, maximizes crop yield while minimizing environmental impact.\nEnvironmental Monitoring with Infrared\nInfrared sensors contribute to climate studies by monitoring temperature variations and atmospheric conditions. They also play a crucial role in detecting pollution and natural disasters, aiding in timely responses to environmental challenges.\nInfrared in Automotive Technology\nNight vision systems in automobiles leverage infrared technology for enhanced safety during nighttime driving. Infrared sensors assist in parking, reducing the likelihood of collisions. These applications showcase how infrared inventions are integral to modern automotive technology.\nInfrared in Astronomy\nAstronomers utilize infrared telescopes to observe celestial bodies obscured by dust clouds. Infrared technology unveils details otherwise invisible, leading to groundbreaking discoveries about the universe’s vastness and complexity.\nChallenges and Innovations\nDespite its widespread use, infrared technology faces challenges such as limited resolution and potential interference. Innovations, however, continually address these issues, pushing the boundaries of what is achievable with infrared inventions.\nFuture Prospects of Infrared Inventions\nThe future of infrared technology holds exciting possibilities. Predictions include advancements in imaging quality, expanded applications in various industries, and breakthroughs in materials enhancing infrared devices’ efficiency.\nIn conclusion, the world of infrared inventions is a fascinating realm where the invisible becomes visible. From healthcare to astronomy, the impact of infrared technology is profound and multifaceted. As we continue to unlock new potentials, exploring the diverse applications of infrared inventions promises a future filled with innovation and discovery.\nFrequently Asked Questions (FAQs)\n- What is the main principle behind infrared technology?\n- Infrared technology operates by detecting and interpreting the heat emitted by objects, revealing details invisible to the naked eye.\n- How is infrared used in medical diagnostics?\n- Infrared imaging in medical diagnostics allows for non-invasive examinations, aiding in the identification of abnormalities and early detection of diseases.\n- What role does infrared play in security systems?\n- Infrared technology enhances security systems by providing clear images in low-light conditions, and sensors trigger alarms and control access.\n- Can infrared technology be found in consumer electronics?\n- Yes, infrared is present in everyday devices like remote controls and smartphones, facilitating seamless connectivity.\n- What challenges does infrared technology face, and how are they addressed?\n- Challenges include limited resolution and potential interference, but ongoing innovations continually address these issues.","domain":"optical_engineering"}
{"url":"https://www.innovativeeyecare.com.au/what-we-do/contact-lenses/","date":"2023-12-09T07:28:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100873.6/warc/CC-MAIN-20231209071722-20231209101722-00350.warc.gz","language_score":0.9303213953971863,"token_count":1200,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__286512635","lang":"en","text":"Contact lenses are an alternative option to spectacles for providing clear vision. At our Adelaide and Henley Beach branches, an optometrist can advise you on whether contact lenses are right for you. The following information will answer some of the questions you may have about contact lenses before your appointment.\nThere are several different types of soft disposable lenses. Typically spherical and spherico-cylindrical soft lenses are available to correct basic prescriptions like hyperopia, myopia and astigmatism, while more optically-complex multifocal soft lenses are available for prescriptions like presbyopia, as well as for myopia control. Soft contact lenses come in daily and monthly modalities, where the former requires replacement after every wear and the latter is discarded after a month of wear but requires cleaning and maintenance after each wear. There are also variations in size, shape and material between soft contact lens brands. Innovative Eye Care recommends Alcon soft contact lenses, which can be purchased through our practice, because of their superior clarity and wearability.1\nClick here to find out more about soft contact lenses.\nRGP lenses are made from a stiffer material. Because of this, careful fitting is required. Rigid lenses are generally reserved for very high prescriptions or precision fits, including for irregular corneal surfaces (like keratoconus) or following injury and surgery.4 They provide a clarity of vision in these cases that isn’t possible in conventional soft lenses, which makes them perfect for things like sport. Depending on how well they’re looked after, they can last up to 2 years before needing to be replaced, although they have some potential for loss even when on-eye due to their small size.\nInnovative Eye Care practitioners have had a keen interest in rigid lens fitting for a number of years and use a pioneering lens design software called EyeSpace to custom-design every hard lens used in the practice. Often during the fitting process, the lenses may feel slightly uncomfortable but this subsides with regular wear. Learn about proper care of RGP lenses here to prevent the risk of infection, although this risk is lowest across the entire range of contact lenses, particularly with EyeSpace’s manufacturing process.2, 5\nClick here to find out more about RGP lenses.\nOrthokeratology (ortho-K for short) is an exciting new treatment in vision correction. Ortho-K works while you sleep by gently reshaping the centre of the cornea (the transparent optical surface at the front of the eye) with custom-designed contact lenses, using the hydrostatic forces of your own tears underneath the lens to redistribute the most superficial cells. When the lenses are removed in the morning, the change in the cornea’s optical structure gives clear vision without the need for any spectacles or contact lenses.\nOrtho-K can treat mild to moderate myopia (short-sightedness), mild hyperopia (long-sightedness), mild astigmatism and even presbyopia. Best of all, the ortho-K vision correction process is completely reversible, unlike laser eye surgery. It has recently been shown to reduce the progression of short-sightedness in younger patients, which is extremely important in preventing complications with age including retinal detachment and glaucoma.6 When cared for correctly, the risk of infection with ortho-K lenses is similarly low as in overnight wear soft lenses.7\nClick here to find out more about orthokeratology lenses.\nScleral lenses are larger diameter RGP lenses commonly used in extreme corneal irregularity and dry eye disease.8 Their larger size means they rest on the white of the eye (sclera) rather than on the clear, sensitive part of the eye (cornea), unlike conventional RGPs. This makes them very stable on eye, and as the tear film under the lens fills in the irregular gaps of the corneal surface, it provides extremely clear vision. It also makes them incredibly comfortable because the lens vaults over the sensitive part of the eye and bathes it in fluid, reducing the sensation of dryness that can be common with contact lens wear.\nClick here to find out more about scleral lenses.\nYou need to see your optometrist to determine if contact lenses are right for you, or to obtain a script for your contact lenses.\nCareful fitting of all contact lenses is required to offer the clearest and most comfortable vision without compromising the health of the eye. The costs of being fitted into contact lenses varies depending on the type of lens used and the complexity of the fitting process. For most contact lens designs, additional specialized technology needs to be used, such as corneal topography, tomography and wavefront aberrometry, which can attract additional charges. We conduct these measurements at half price for concession card holders.\nDaily replacement soft lenses tend to be priced at around $1 per lens, although depending on wearing schedule monthly and fortnightly replacement lenses can be around 2 thirds of the cost. However, cleaning and storage solutions are also required for these lenses. More complex soft lenses, like torics to correct astigmatism or multifocal lenses for patients with presbyopia, will be more expensive than standard spherical soft lenses.\nThe cost of RGP, ortho-K and scleral lenses is dependent on the complexity of the design. Scleral lenses take longer to manufacture and use a larger quantity of material, which is translated into a slightly higher cost than RGP lenses. Despite this, the cost of rigid and scleral lenses is cheaper than soft lenses in that they last much longer, and back-up lenses of identical parameters may be ordered at half price within 12 months of the original order depending on the warranty.\nPlease feel free to contact our team for more details about the costs of different contact lenses.","domain":"optical_engineering"}
{"url":"https://www.soyacincau.com/2013/08/21/sony-ready-to-showcase-its-latest-mobile-products-this-september-5/","date":"2021-03-08T04:21:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178381803.98/warc/CC-MAIN-20210308021603-20210308051603-00526.warc.gz","language_score":0.949476420879364,"token_count":474,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__14674478","lang":"en","text":"The invites are out and we’re set. Sony has confirmed that it will be holding at event in Malaysia this September 5 presumably to announce its latest mobile offerings. And judging by the many leaks are rumours, you can expect to see the Honami (aka Xperia i1) together with what we think is the most innovative mobile product to be released this year, the Sony G series lens camera.\nHere’s what we know so far. Sony wants to dominate smartphone photography and its working on a number of devices to achieve this. First, we have the Honami, a devices that’s expected to feature a 5-inch Full HD Triluminous display with X-Reality and a Quadcore Snapdragon 800 processor. The device’s calling card is its purported 20.7MP sensor with a large — for a smartphone — 1/2.3″ sensor mated to a new lens element bearing the same name as Sony’s top-line G Lens series.\nNext, Sony is working on something that we’re really excited about and something that could very well create a new market for smartphone peripherals — the Sony G series lens camera.\nThe lens camera has all the imaging power of a prosumer camera housed in a compact lens body that can be bolted on to your existing smartphone. When taking a picture of video, the lens camera does all the heavy lifting while the smartphone acts as a viewfinder, shutter and storage. Expected specs include Sony’s Bionz imaging processor along with WiFi and NFC connectivity to interface with the host smartphone.\nSony is rumoured to be working on two models – DSC-QX10 and DSC-QX100. The QX10 lens is said to house a 1-inch sensor that is reportedly similar to the one used in the Nikon 1 while the second model QX100 comes with a 10X Zoom lens and a 1/2.3-inch sensor.\nThose are pretty impressive specs for a lens that you’re going to stick on a phone and were very excited with the possibility. Essentially, with the lens camera, almost any smartphone can be an awesome camera phone. It’s an amazing prospect and if Sony can price this attractively, they will have another amazing product in their hands.","domain":"optical_engineering"}
{"url":"https://pioneerproducts.com/quality-control/","date":"2024-02-27T04:21:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474670.19/warc/CC-MAIN-20240227021813-20240227051813-00490.warc.gz","language_score":0.9471197128295898,"token_count":459,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__63554007","lang":"en","text":"Implementing Thorough Testing and Inspection Processes\nAt Pioneer Products, quality control is priority number one. We understand that even the smallest defects can have a major impact on the performance of your products, so our specialists take great care to ensure that every manufactured part meets Pioneer’s high standards. We start by clearly defining the specifications for each part during the design process. Once the parts are manufactured, we subject them to rigorous testing to make sure they meet our requirements. Finally, we perform a final inspection before shipment to ensure that the products meet our customers’ expectations. By following these procedures, we can be confident that your parts and products will meet the highest standards of quality and reliability.\nCoordinate Measuring Machines (CMMs)\nOur coordinate measuring machines (CMM) are metrology instruments used to measure the dimensions of manufactured parts to prevent or resolve quality issues. CMM machines are used in many industries, such as automotive and aerospace, for quality assurance. CMM machines are very accurate, and can measure dimensions to a high degree of precision. We use our CMMs in production environments to test parts so we can make sure they respect the original design intent. CMM machines are typically used in conjunction with other quality assurance tools, such as inspection reports and CAD models, to ensure that products meet specifications. In summary, CMM machines are an essential tool for ensuring the quality of products and components.\nThe Keyence digital microscope is a powerful tool that Pioneer Products uses to fully focus on 3d objects and capture images for measuring. It is fast and accurate, and allows us to observe from any angle. The microscope that Pioneer uses is fully focused, meaning that the entire field of view is in focus at the same time. This is in contrast to traditional microscopes, which require the user to manually adjust the focus in order to get a clear image. The digital microscope has been essential in helping us to improve our manufacturing process and produce higher quality products.\nQuality Management Certificates\nThe following certificates were awarded based on the manufacture of precision machined products. An audit conducted and documented in a report, has verified that these quality management system fulfill the requirements of the following standards:\nIATF 16949:2016 (International Automotive Standard)","domain":"optical_engineering"}
{"url":"https://honrane.com/question/is-this-digitally-created-esa-image-of-a-mars-landscape-incorrect-to-what-the-human-eye-would-see/","date":"2023-12-01T20:24:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100304.52/warc/CC-MAIN-20231201183432-20231201213432-00542.warc.gz","language_score":0.9560688734054565,"token_count":195,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__83034834","lang":"en","text":"This ESA image below of Noctis Labyrithus was created with data obtained from the High-Resolution Stereo Camera (HRSC), onboard ESA’s Mars Express, seems to depict a time near either sunrise or sunset. The quality of the light indicated suggests what one would see on Earth during the Golden Hour, warm light with longer shadows.\nI'm assuming NASA's Insight image and gif below suggest the landscape at sunrise or sunset would appear cooler, and the ESA image is not an accurate depiction.\nIncluded in the gif is \"…are the 'raw' versions of the image and the color-corrected version; it's easier to see some details in the raw version, but the latter more accurately shows the image as the human eye would see it.\" In either case, the raw or color-corrected version, there appears a cooler color cast across the image.\nHad the ESA made any mention of the color choice of this rendering?","domain":"optical_engineering"}
{"url":"https://obuch.info/field-spectroscopy-measurements-of-rocks-in-earth-observations.html","date":"2021-07-30T08:06:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153934.85/warc/CC-MAIN-20210730060435-20210730090435-00548.warc.gz","language_score":0.7690204977989197,"token_count":5691,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__7340767","lang":"en","text":"ГОДИШНИК НА МИННО-ГЕОЛОЖКИЯ УНИВЕРСИТЕТ “СВ. ИВАН РИЛСКИ”, Том 57, Св. I, Геология и геофизика, 2014\nANNUAL OF THE UNIVERSITY OF MINING AND GEOLOGY “ST. IVAN RILSKI”, Vol. 57, Part I, Geology and Geophysics, 2014\nField spectroscopy measurements of rocks in Earth observations Denitsa Borisova1, Banush Banushev2, Doyno Petkov1, Valentin Atanassov1 1Space Research and Technology Institute, Bulgarian Academy of Sciences /SRTI-BAS/, 1113 Sofia, firstname.lastname@example.org\n2University of Mining and Geology “St. Ivan Rilski”, 1700 Sofia, email@example.com ABSTRACT.Remote sensing applications in Earth observation begin with the design and development of equipment for carrying out research of the monitored objects remotely and without disturbing their integrity. Ground-truth data in Earth observation of the environment and in the remote sensing investigations are very important. The main goal in the geological remote sensing is the determination of the chemical and/or mineral composition and the structure of the rocks. For this purpose the field spectroscopy measurements of the samples of the main rock types are performed. These measurements are made to collect, compile and complete guide with spectral characteristics of different rocks for their reliable identification and for the determination of their mineral and chemical composition. The experiments are based on major physical principles such as light scattering, absorption of light, and reflection of light in the electromagnetic spectrum. In the field-based studies the Thematically Oriented Multi-channel Spectrometer designed and constructed in Remote Sensing Systems Department at SRTI-BAS is used. The spectrometer with increased spectral resolution works in (400-900) nm range of the spectrum. The obtained spectral data are compared with similar data from different instruments for Earth observation included in the spectral libraries. They correspond to the shape of the spectral signature in the same spectral range obtained with other spectrometers. These promising results encourage us to plan the next campaigns for the field spectroscopy measurements in different regions of Bulgaria.\nТеренни спектрометрични измервания на скали в комплексните наблюдения на Земята\n1Институт за космически изследвания и технологии, Българска академия на науките, 1113 София, firstname.lastname@example.org\n2Минно-геоложки университет \"Св. Иван Рилски\", 1700 София, email@example.com Резюме. Приложението на спътниковите изображения при комплексните наблюдения на Земята започва с проектирането и конструирането на апаратура за извършване на наблюдения на изучаваните обекти от разстояние и без да се нарушава тяхната цялост. Наземните данни са много важни в мониторинга на околната среда и в дистанционни изследвания на Земята. Една основна цел в дистанционните изследвания за нуждите на геологията е определянето на химичния и/или минерален състав и на структурата на скалите. За тази цел са извършени полеви (теренни) спектрометрични измервания на образци от основните видове скали. Тези измервания са направени, за да се събере, състави и периодично да се попълва ръководство със спектрални характеристики на различните скали с цел тяхното надеждно идентифициране и за определяне на минералния и химичния им състав. Експериментите са базирани на основни физични принципи като разсейване, абсорбция и отражение на светлината в електромагнитния спектър /ЕМС/. В теренните проучвания е използван тематично ориентиран многоканален спектрометър, проектиран и изработен в секция Системи за дистанционни изследвания /СДИ/ в ИКИТ-БАН. Спектрометърът с повишена спектрална разделителна способност работи в диапазона на ЕМС (400-900) nm. Получените спектрални данни са сравнени с подобни данни от различни инструменти за наблюдение на Земята, включени в спектрални библиотеки. Получените зависимости съответстват на формата на спектралните сигнатури в същия обхват на спектъра, получени с други спектрометри. Тези обещаващи резултати ни насърчават да планираме следващи кампании за теренни спектрометрични измервания в различни региони на България.\nIntroduction Remote sensing using geophysical principles begins with the development and design of equipment for performing research of objects remotely and without disturbing their integrity. In geological remote sensing studies the determination of the chemical/mineral composition and the structure of the objects within the field of view of the instrument either obtained in the lab, with a field spectrometer, or with a remote sensor is a main goal. Or in other words: “What kind of rock am I looking at?” For this purpose field spectrometric studies of rocks were made to collect spectral signatures of different rock types for the reliable detection and identification of their mineral and chemical composition. The aim of this study is to present and test the procedure of preprocessing of the field spectrometric data. The experiments are based on major physical principles such as light scattering, absorption of light, and reflection of light in the electromagnetic spectrum (EMS). Field spectral measurements were made with Thematically Oriented Multi-channel Spectrometer designed and constructed in Remote Sensing Systems Department at SRTI-BAS. The spectrometer with increased spectral resolution works in (400-900) nm range of EMS. The results are compared with similar data from spectral libraries. They correspond to the shape of reflectance spectra in the same range of EMS obtained with other spectrometers.\nTheory and Methods Physical principles. Main physical principles that are based for performed experimental measurements are: scattering, absorption and reflection of the solar radiation in the visible range of electromagnetic spectrum (ems). Two major definitions which refer to the measurements carried out:\n• Rocks are natural mineral aggregates and thus considered in the experiments;\n• Hapke’s equation to model the reflectance () from an exposed rock (Hapke, 1981). The point of all of this is that with knowledge of known optical constants of various minerals and the angle of incident and emitted light, we can model the reflectance of a rock with mixed minerals and grain sizes.\nFig. 1. Physical processes in solid transparent parallel plate What does the solar radiation do when it hits a rock? When the radiation reaching the object (in this case - the rocks) it simultaneously scattered, reflected off of the grains either away from the surface or onto other grains, refracted through a grain onto other grains and absorbed by a grain. Thus the physical processes occur simultaneously (Figure 1) and following physical laws and relationships are applied:\n• Beers Law (exponential law of absorption):\nI – observed light intensity [W/sr], – original light intensity [W/sr], k – absorption coefficient () [m-1] and x is the distance traveled through the medium [m].\n• Intensity of reflected solar radiation [W/sr]:\nR is the reflection coefficient, is defined for two types of media,\nand is not dependent on the direction of propagation and n is the relative refractive index of the reflecting medium.\n• Spectral reflectance (measured in the field):\nrepresents a measure of the ability of a surface to reflect solar radiation which criterion is equal to the ratio of reflected solar radiation by the object for each wavelength [W/(m2.sr)] to reflected solar radiation by the calibrated reference surface the same wavelength [W/(m2.sr)] in the same conditions of these measurements. Resultant graph plotted as a functional dependence vs. is called the spectrum or the spectral reflectance characteristics, or the spectral signature.\nSpectrometric measurements.The field spectrometric measurements in this research are performed using the thematically oriented multichannel spectrometer (TOMS) working in (400 - 900) nm range of the EMS (Petkov et al., 2005a,b). The main measuring device of the field spectrometer TOMS is USB2000 (Ocean Optics, 2013).\nThe preprocessing is an important part of analysis of imaging spectrometry data and is relevant to a quantitative estimation of the data. It includes realization of characterization and correction procedures eliminating at sensor effects and data correction algorithms accounting environmental conditions. The measured radiance is influenced by a number of factors such as instrument response characteristics, atmospheric conditions, changes in scene illumination and viewing geometry.\nMore spectrometer characteristics will be expected to remain constant through instrument life and can be characterized in laboratory condition, while others will be expected to change during the operating mode and these must be corrected at the field work The characterization methods and correspondence procedures are determined in detail on the basis of error analyses. The frequency of characterization processes and algorithm update will vary with rate of errors change.\nThe following preprocessing procedures are expected to be considered critical for data calibration:\nAtmospheric correction reduces the radiance at the sensor to a reflectance value at the object.\nWhen detailed radiometric correction is not feasible, normalization is an alternative could be makes the corrected data independent of multiplicative noise such as topographic and solar spectrum effects. This can be performed using white calibrated target (reference standard), and the results are based on the relationship between radiance and reflectance.\nA way for preprocessing of spectrometer data is indicated in the flow diagram (Figure 2).\nFig. 2. Preprocessing data flow diagram\nThe preprocessing algorithms of the received data are performed by the software of the spectrometer and include: the correction for electrical dark, the noise correction, the radiometric correction, the statistical correction and calibration (Atanassov and Jelev, 2004; Atanassov et al., 2005). The atmospheric correction is not needed in these filed experiments because of the low distance between the studied object and the fore optics of the spectrometer (see Table 1).\nIn Table 1 as a part of the preprocessing data the additional information is presented. In addition we have to take in account GPS-coordinates of the field points of measurement (GPS), weather conditions of the measurements in the field experiments (atm), the integration time for each acquisition (), the number of statistically averaged spectra () and the distance between the object and the device fore optics ().\nShort petrographic description. Plutonic rocks in the Vitosha mountain are gabbro, monzonites, leucosyenites and granosyenites (Димитров, 1942), which according to modern petrographic nomenclature are monzodiorites, quartz-monzodiorites, quartz-monzonites, syenites, and quartz-syenites (Дабовски и др., 2009). Field spectrometric studies in the area of Hotel Moreni are made for the monzonites. Monzonites are colorful, grey-greenish, and medium-to-coarse-grained, with a massive structure and monzonitic texture. The rock-forming minerals are plagioclase, K-feldspar, augite, amphibole, biotite, a little quartz, accessory magnetite, apatite and titanite. The rocks are relatively fresh, with the rarely overlaped secondary mineral association - sericite, clay minerals, carbonate, epidote and chlorite.\nIn Rila Mountain the area of the locality Kirilova polyana is consisted of high-grade metamorphic rocks, metamorphosed ultrabasic and basic igneous rocks; called South Bulgarian granitoids, aplite-pegmatoid granites and fine-grained biotite granites. Spectrometric studies were made of the fine-grained biotite granite. They expose near Kirilova polyana and in the West direction and form the Monastic Body. Fine-grained biotite granites are light gray with a massive structure and hypidiomorphic texture. The rock-forming minerals are magmatic K-feldspar, quartz, plagioclase, biotite and zircon and secondary - sericite, chlorite and clay minerals.\nOn the road to the village Barziya in about 3 km after Petrohan pass are revealed magmatic rocks from Petrohan pluton. It is a complex magma body emplaced into rocks of Berkovska and Dalgidelska groups. It is made of several magmatic phases: the first is gabbro, widespread in northern part of the pluton near Berkovitsa; the second is represented by diorites, and the third - by granodiorites. The largest areas occupy diorites and granodiorites. Field spectrometric studies have been made of the diorites. They are gray, grey-greenish, medium-grained, and uniform-grained. Their structure is massive, and the texture – prismatic granular. The main rock-forming minerals are plagioclase (andesine) and amphibole, secondary – biotite and augite, and accessory - titanite and magnetite.\nResults and Discussion For the reflectance calibration of the spectrometric measurements in the field we used a reference standard. The field standards are reference materials that should exhibit a highly Lambertian reflectance over the whole spectral range of interest. In addition, the reflectance of the materials should be insensitive to the bidirectional reflectance distribution function effects and should reflect at least more than 80% of the incoming solar radiation.\nSince contamination of the standards material is often a problem, the spectral and spatial characteristics should not degrade over time and – if used frequently in the field – should be able to be washed or rinsed to remove contamination or particles such as mud, sand or others (Schaepman, 1998). The used reference standard is made from barium sulphate and its surface exhibits lambertian behavior (Figure 3).\nFig. 3. Reflectance spectra of the used reference standard In Figure 4 the presented reflectance spectra of three rock types are resulted as following the above described procedure. The obtained spectral data are pre-corrected under laboratory conditions.\nred with similar data from the spectral libraries (USGS, 2013).\nThe spectral libraries represent the collections of spectra of numerous minerals and rocks obtained using the spectrometers with high radiometric and spectral resolution. Collected spectra could be compared with other spectra in order to be more accurately identified objects of comparative research. It is particularly important to take into account that data from different spectrometers should be compared only when they are converted to the criterion of comparability - the reflectance coefficient. Such spectral libraries are the basis for comparative remote sensing studies of rocks.\nConclusions The procedure of the preprocessing of the field spectrometric data is presented and tested. Obtained with the spectrometer TOMS the reflectance spectra of the studied rocks correspond as form and values of spectral reflectance in the same range of EMS to the similar signatures received using other spectrometers and presented in the spectral libraries.\nAcknowledgments. This research was supported by the Bulgarian Science Fund under contract DFNI – I01/8.\nДимитров, С. 1942. Витошкият плутон. – Год. СУ, Физ.-матем. фак., 3, 89-165.\nДабовски, Х., Б. Каменов, Д. Синьовски, Е. Василев, Е. Димитрова. 2009. Горнокредна геология. Магматизъм. – В: Загорчев, И., Дабовски, Х., Николов, Т. (ред). 2009.Геология на България. Том ІІ. Мезозойска геология. С., Акад. изд. „Проф. Марин Дринов”, 423-553.\nAtanassov, V., G. Jelev. 2004. Algorithm for dark current characterization of imaging spectrometer. - Aerospace Research in Bulgaria, 19, 77-83.\nAtanassov, V., G. Jelev, L. Kraleva. 2005. Imaging spectrometer data correction. Scientific Conference with International Participation “Space, Ecology, Safety – SES’2005”, Varna, Bulgaria, Conference Proceedings, Book 1, 221–226.\nHapke, B. 1981. Bidirectional reflectance spectroscopy 1. Theory. - J. Geophys. Res., 86, 3039-3054.\nOcean Optics. 2013. Accessed December 2013. http://www.oceanoptics.com/homepage.asp\nPetkov, D., Al. Krumov, H. Nikolov, G. Georgiev. 2005a. Multichannel nadir spectrometer for thematically oriented remote sensing investigations. - Proceedings of SES 2005, 227-231.\nPetkov, D.; G. Georgiev; H. Nikolov. 2005b. Thematically oriented multichannel spectrometer (TOMS). - Aerospace Research in Bulgaria, No. 20, 51 - 54.\nSchaepman, M. 1998. Calibration of a field spectroradiometer. Academic Dept.: Dept. of Geography, Zurich, pp.155.\nUSGS Spectroscopy Lab. 2014., Accessed June 2014. http://speclab.cr.usgs.gov/spectral.lib06/\nСтатията е рецензирана от проф. дгн Стефан Димовски и препоръчана за публикуване от кат. „Приложна геофизика.","domain":"optical_engineering"}
{"url":"https://alberts.com.au/products/blackvue-dr590x-series-dash-cam","date":"2024-02-22T18:16:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473824.13/warc/CC-MAIN-20240222161802-20240222191802-00049.warc.gz","language_score":0.7461816072463989,"token_count":108,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__28083194","lang":"en","text":"Blackvue DR590X Series Dash Cam\nOur entry level Full HD dash cam, the DR590X uses an upgraded Sony STARVIS™ Sensor and supports 60fps video recording, now with built-in WiFi and optional GPS.\nAffordable yet powerful\nThe perfect dashcam for those looking for Full HD video recording and premium quality, at an entry level price.\nSony STARVIS™ Sensor\nThe Sony STARVIS™ image sensor equips the DR590X Plus Series front and rear cameras delivers outstanding low-light performance.","domain":"optical_engineering"}
{"url":"https://www.choblogs.com/what-is-ndyag-crystal/","date":"2023-06-09T00:53:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655244.74/warc/CC-MAIN-20230609000217-20230609030217-00549.warc.gz","language_score":0.9292648434638977,"token_count":1280,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__265708557","lang":"en","text":"What is Nd:YAG crystal\nNd: YAG crystal\nNd: YAG, fully called neodymium-doped yttrium aluminum garnet crystal (Nd: Y3Al5O12), yttrium aluminum garnet crystal as its activator, the content of Nd atoms in the crystal is 0.6 ~ 1.1%, comes from the solid laser, can thrill pulse laser or continuous laser, giving off laser infrared wavelength 1.064 μm.\nBrief pulse Nd YAG laser has crucial applications in laser handling, photoelectric countermeasures, laser varying, laser communication, etc. Especially the peak power laser gotten by Q switching is the core device in many innovative clinical research as well as modern-day clinical tools and tools.\nNeodymium-doped yttrium aluminum garnet (Nd: YAG) laser crystal has the advantages of great optical uniformity, mechanical properties, high physical and also chemical security, excellent thermal conductivity, and so on. It has actually ended up being the major assistance material for army solid laser innovation and also the application direction of medium and also high-power lasers. It is referred to as one of the “3 basic laser crystal materials”, which is widely used in commercial, clinical, army, and scientific research study.\nNd: YAG crystal is still one of the most widely made use of strong laser tool as a result of its outstanding optical and also mechanical homes, simple manufacturing, as well as affordable. However, the study mostly concentrates on the 946nm, 1064nm, as well as 1319nm wavelength lasers, and also the 1123nm laser discharge is additionally a crucial transition.\nNd: YAG crystals have superior spectral as well as laser properties. It is among one of the most extensively used laser crystals.\nCompared with Nd YVO4 crystal, the previous has high thermal conductivity, good mechanical properties, and simple growth, and also Nd: YAG crystal can be used straight; Cr YAG Q modulation to get peak power and also high rep regularity outcome. However, because the doping focus of Nd: YAG crystal is reduced and also the absorption coefficient is little, it is hard to realize the miniaturization of the laser and boost its effectiveness. We have now acquired big, highly doped Nd: YAG crystals utilizing the cozy ladder technique, with the mole fraction of Nd ions doped up to 2.3.\nGrowth method of Nd:YAG crystal\nLifting method of Nd:YAG crystal\nTira method: Czochralsik: CZ technique, a crystal growth method developed by Czochralsik in 1917.\nFundamental concept: Under an affordable temperature level area, the lower end of the seed crystal installed on the seed crystal rod is reduced into the raw material of the melt. Under the activity of the rotating motor and lifting device, the seed crystal rod rotates while slowly pulling upwards. After numerous technical phases, such as neck diminishing, shoulder growth, shoulder rotation, equal diameter, finishing, as well as pulling off, the solitary crystal with qualified geometric form and interior high quality is expanded.\n1) Advantages of the drawing method:\n- During the growth process, it is convenient to observe the growth of the crystal\n- The growth of the crystal on a free surface of the thaw without contact with the crucible significantly decreases the tension on the crystal and also avoids nucleation on the crucible wall\n- It is easy to use orientated seed crystals and the “necking” process to acquire total seed crystals as well as crystals of the preferred alignment. The terrific advantage of the pull-up technique is the capability to grow crystals of higher quality at a faster rate\n- Possible contamination of the crystal by crucible product;\n- The thaw’s flow activity, the transmission’s resonance, and the temperature change all impact the crystal’s top quality.\nBridgman procedure is a common thaw growth method, typically divided into vertical and horizontal Bridgman process 2.\nThe vertical Bridgman process, also called the crucible descent method, is a method of growing crystals from thaw. Normally, when the crucible is reduced in a taking shape heating system and also passes through an area with a large temperature level gradient, the melt crystallizes in the crucible from the bottom up into a single crystal. The crystallization heating system climbing along the crucible can additionally finish this procedure.\nGuided temperature level slope technique\nThe directed temperature level ladder technique is a solitary condensation approach of melt generated by orientated seed crystals. The temperature field of TGT is primarily adjusted by adjusting the shape as well as position of the graphite heating body, Mo insulation screen, Mo crucible, the power of the heating body, and the flow of flowing cooling water to create an ideal temperature slope from all-time low to top\nMain application of Nd YAG laser\nThe Nd: YAG laser has a wavelength of 1064 nm and is not near the absorption top of oxygenated hemoglobin, which has inadequate Nd: YAG laser absorption. However, its infiltration deepness can reach concerning 8 mm, so that it can play a therapeutic function in the much deeper part of the hemangioma. According to the various power output modes, Nd: YAG laser can be divided right into constant and also pulse type two.\nContinuous Nd: YAG lasers are typically made use of yet are non-selective in thermal tissue damages. Continual Nd: YAG laser is extensively utilized in the ent department, gynecology and also surgical procedure. And also in dermatology, as a result of the “not good cosmetic effect”, use is extra careful. Compared to continual Nd: YAG laser, pulsed Nd: YAG laser is extra regular with discerning photothermal theory. It can lower warm damage to the surrounding typical tissue and decrease the event of marks as well as other damaging reactions.","domain":"optical_engineering"}
{"url":"https://www.farmacialanucia.es/en/blog/personal-code-to-perceive-sharpens-images","date":"2017-10-22T17:24:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825399.73/warc/CC-MAIN-20171022165927-20171022185927-00022.warc.gz","language_score":0.9286608695983887,"token_count":526,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__117328900","lang":"en","text":"The study, published in the latest issue of the journal PLoS ONE, shows that the magnitude and orientation coincide with the blurring of the retinal image projected by its own optical system.\nThe optical system of the eye, comprising the cornea and the lens, projecting the images from the outside world on the retina. The imperfections of these lenses and misalignment between them produce a retinal image degradation. For example, when looking at a point on the retina is formed actually a degraded image, a spot usually smudged with asymmetries. The degree of visual blurring varies for each person and the concept of what is too blurry, too sharp, or a neutral image depends on the visual experience of each.\n\"The study shows that are considered less smudged those images degraded by imperfections similar to those present in the eyes, even if the amount of blurring is similar,\" says Susana Marcos, CSIC researcher at the Institute of Optics.\n\"We hate to see through other eyes\"\nTo determine the pattern of blurring that each person considered optimal, the research team, which also included scientists from Schepens Eye Research Institute at Harvard University, has used a psychophysical method based on an image classification system.\nScientists asked a group of people to evaluate the quality of hundreds of images with the same magnitude of optical blurring (an automatic detection of the considered image quality like), but with varying orientations of blurring, which corresponded to the measurements over 100 different eyes. To ensure that the images projected on the retina were the same in all cases, eliminated the imperfections eye of each person with an adaptive optics system.\n\"So only able to evaluate the neural perception. Although all images were optically equivalent participants chose those that were blotted with imperfections similar to those of their eyes, and the others discarded. The reality is that we do not like to see through different eyes, \"says the researcher at the Institute of Optics Lucie Sawides, first author of the study.\nThe results show, for the first time the internal visual code blurring of each person, but also have clinical implications, since different ocular pathologies or corrections can change the orientation of blurring using lenses or surgery.\nSawides Lucie, Carlos Dorronsoro, Andrew M. Haun, Eli Peli and Susana Marcos. Using Pattern Classification to Measure Adaptation to the Orientation of High Order Aberrations. PLoS ONE. http://dx.plos.org/10.1371/journal.pone.0070856","domain":"optical_engineering"}
{"url":"http://optotherm.com/sys-comp-computer.htm","date":"2017-10-23T06:01:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825700.38/warc/CC-MAIN-20171023054654-20171023074654-00071.warc.gz","language_score":0.8026996850967407,"token_count":181,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__57807885","lang":"en","text":"The computer package includes the following items for hosting the Thermalyze software and retrieving thermal image data from an Infrasight camera:\n- Dell PC\n- Camera Link video board\nThe Dell PC and monitor specifications have been carefully selected to provide optimal performance while capturing live thermal images at 60 Hz and when performing sophisticated image processing and testing. Includes 25” LCD monitor (2560 x 1440 pixels) with soundbar, keyboard, mouse, and Windows 10 Pro.\nCameraLink Video Board\nThe Camera Link video board is inserted into one of the computer's PCIe slots and captures real-time thermal images from the Infrasight IS640 camera using the high speed CameraLink digital protocol. Advantages of the CameraLink protocol over other image capture protocol (such as USB or GigE) include deterministic image capture timing and no lost frames. Includes CameraLink video cable(3m).","domain":"optical_engineering"}
{"url":"http://www.szhuajiahui.com/en/product-details-58.html","date":"2023-03-29T00:58:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948900.50/warc/CC-MAIN-20230328232645-20230329022645-00644.warc.gz","language_score":0.8243549466133118,"token_count":1061,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__90912322","lang":"en","text":"- 400Tel： 400-6092-808\nOptiX OSN3500OptiX OSN3500 intelligent optical transmission system is a new generation of integrated 10G/2.5G multiservice optical transport platform (MSTP), which inherits all features of the MSTP technology,\nOptiX OSN3500 intelligent optical transmission system is a new generation of integrated 10G/2.5G multiservice optical transport platform (MSTP), which inherits all features of the MSTP technology, maintains compatibility with traditional SDH, MSTP network, an integration of SDH, PDH, Ethernet, WDM, ATM, ESCON, FC / FICON, the DVB-ASI (Digital Video Broadcast- Asynchronous Serial Interface) and RPR technologies and mainly used in the access stratum of the metropolitan area network, providing perfect solutions for the smooth evolution from the present SDH application to the intelligent optical network equipment. It mainly used in highway access network communications systems.\nOptiX OSN7500/3500/2500/1500 business panels and the software is fully compatible and forms a unified platform. By this, it can greatly reduce the cost of maintenance and spare parts. OSN Intelligent Platform has an efficient combination of operational capacity, offering the highest cost-effective solutions to operators, at the same time, it has hybrid network together with the existing Huawei’ equipment and can fit into Huawei's optical network network management solution for unified management.\nFlexible device configuration\nSTM-64/16 compatible device;\nsupport for the online upgrade of network equipment from 2.5G to 10G.\nLarge capacity scheduling\nhas the high-level 512 x 512 VC-4, the low-level 8064 × 8064 VC-12 or the equivalent of the VC-3 cross-connect capability.\nSupports STM-1 (O / E);\nsupports STM-4/16/64 standard or cascade business;\nsupports transparent transmission and switching of FE, GE operations;\nSupports ATM services;\nSupports IMA services;\nSupports SAN and video services;\nProvides fast GMPLS-based end-to-end business.\nFeatures and Advantages\nThe sub-rack integration: sub-rack size is 730mm (H) x 496mm (W) × 295mm (D), the single sub-rack has 15 business board positions and 16 interface board positions.\nSupport the REG devices hardware based on the design of the OSN2500 ;\nThe sub-rack integration: sub-frame size 730mm (H) x 496mm (width) × 295mm (D), the list frame have 15 business board, 16 interface board bit.\nStrong networking capability\nSupports Mesh network immediate click, Plug and use.\nSupports Mesh network upgrading and expansion at any rate online ;\nSupports Mesh network’ up to 40 light directions networking;\nSupports the various SDH network topology of chain, ring, intersecting ring, tangent ring ;\nSupport RPR, VP-RING ring;\nThe sub-rack can achieve 1 × STM-64 four-fiber ring, 2× STM-64 four-fiber ring or 4 × STM-16 two-fiber ring.\nBuilt-in wavelength division technology\nprovides Dual optical bifurcation multiplexing board;\nProvides any rate wavelength conversion board.\nthorough network survivability mechanism\nSupports distributed protection of recoverable reroute;\nprovides five types of detailed business protection programs, according to the different SLA, it provides diamond, gold, silver, bronze, iron level businesses.\nSupports 2F/4F MSP, SNCP, DNI, sharing a light virtual path protection.\nProtection of data services\nSupports Ethernet business RPR ring network protection, STP spanning tree protection;\nSupports ATM service VP-RING ring protection.\nComplete equipment protection mechanisms\nThe intelligent control unit protection: 1 +1 hot backup;\nSupports key elements such as intersection, clock 1 +1 hot backup protection;\nPower access-48V DC;\nInstallation ways: the ETSI 300mm deep cabinet, the ETSI 600mm deep cabinet ;\nDimensions: 730mm (H) x 496mm (W) × 295mm (D);\nTypical weight: 35kg;\nTypical power consumption: 400W.","domain":"optical_engineering"}
{"url":"http://scanningelectronmicroscop49014.total-blog.com/various-kinds-of-uv-microscope-14606714","date":"2018-12-16T02:31:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827175.38/warc/CC-MAIN-20181216003916-20181216025916-00472.warc.gz","language_score":0.924203097820282,"token_count":766,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__243687963","lang":"en","text":"Various Kinds Of Uv MicroscopeMicroscope Medical are mechanical devices utilized for viewing things and products so minute in size that they are undetected by the naked eye. The procedure conducted with such an instrument, called Microscopy, utilizes the combined schools of optical science and light reflection, controlled and manipulated through lenses, to study little objects at close range.\nThe fundamental microscopic lense consists of a number of complex and interrelated parts: a cylinder that supplies a necessary space of air between the ocular lens (eye piece) located at the top and the unbiased lens fixed at the bottom, hovering close to a stage consisting of an optical assembly on a turning arm and a focused hole through which a light shines from a solid U-shaped stand below. Amplifying values for the ocular range through X5, X10, to X20, while the worths for the unbiased lens has a wider span: X5, X10, X20, X40, x100, and x80. These values supply the observer with a spectrum of possible distance orientations and degrees of sharpness as are required for seeing and analysis.\nSeveral different sort of microscopic lens exist, each having specific features:\nOptical Microscope: The very first produced. The optical microscope has a couple of lenses that work to increase the size of and enhance images placed in between the light source and the lower-most lens.\nSimple Optical Microscope-- uses one lens, the convex lens, in the magnifying procedure. This sort of microscope was used by Anton Van Leeuwenhoek during the late-sixteen and early-seventeenth centuries, around the time that the microscopic lense was invented.\nCompound Optical Microscope-- has 2 lenses, one for the eyepiece to serve the ocular point of view and one of brief focal length for unbiased point of view. Multiple lenses work to reduce both chromatic and get more info spherical aberrations so that the view is unblocked and uncorrupted.\nStereo Microscope: This is likewise known as the Dissecting Microscope, and uses two different optical shafts (for both eyes) to create a three-dimensional image of the item through two slightly various viewpoints. Inverted Microscope: This kind of microscopic lense views items from an inverted position than that of routine microscopic lens.\nPetrographic Microscope: This sort of microscope includes a polarizing filter, a turning phase, and plaster plate. Petrographic Microscopes focus on the research study of inorganic compounds whose residential or commercial properties tend to modify through moving perspective.\nPocket Microscope: This type of microscope includes a single shaft with an eye piece at one end and an adjustable unbiased lens at the other. This old-style microscope has a case for easy carry.\nElectron Microscopes: This type of microscope employs electron waves running parallel to binocular stereo microscope a magnetic field offering higher resolution. Two Electron Microscopes are the Scanning Electron Microscope and the Transmission Electron Microscope.\nScanning Probe Microscope: This kind of microscopic lense procedures interaction in between a physical probe and a sample to form a micrograph. Just surface data can be gathered and evaluated from the sample. Kinds Of Scanning Probe Microscopes consist of the Atomic Force Microscope, the Scanning Tunneling Microscope, the Electric Force Microscope, and the Magnetic Force Microscope.\nScience wouldn't be what it is today without the microscopic lense, as this device is the primary instrument by which the world and all of its elements are determined and examined. It is with the microscope that we take a look within ourselves so we can comprehend and find out who we are and how we work.","domain":"optical_engineering"}
{"url":"http://nikon-d200-blog.blogspot.com/","date":"2017-04-26T17:26:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121528.59/warc/CC-MAIN-20170423031201-00442-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8857017159461975,"token_count":995,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__34823401","lang":"en","text":"The Nikon D200 was announced on 1st November 2005, some three and a half years since Nikon revealed their first prosumer digital SLR, the D100. It's fair to say however that the D200 is a completely different beast altogether, it shares far more with its 'bigger brother' the the D2X than its earlier namesake. The D200 has the robust build quality of the D2X, a 10.2 million pixel CCD sensor and a compact design more like the D100. Just as the D100 the D200 has a CCD sensor, unlike the D2X which utilized a CMOS sensor. It's clear that this camera is aimed at the same kind of market as the recently announced Canon EOS 5D. From a features, control and performance point of view the D200 is closer to the D2X than any other model.\n10.2 megapixel DX Format CCD image sensor: A newly developed 10.2 effective megapixel DX Format CCD image sensor that captures images with edge-to-edge sharpness and incredible color at 3,872 x 2,592 pixels, yielding extraordinarily high-resolution images perfect for enlargements or creative cropping\nIndustry-leading image processing for exceptional color performance: Incorporates Nikon's industry-leading advanced imaging processing engine of the D2x, which allows color-independent pre-conditioning prior to A/D conversion to work in symphony with advanced digital image processing algorithms to achieve fine color gradations with exceptionally smooth, consistent transitions\nLarge viewfinder with 0.94x magnification: The new eye-level optical viewfinder developed for the D200 features large magnification (0.94x) that helps ensure a clear view for precise composition, and built-in diopter adjustment that allows fine-tuning to your eyesight\nDurable, Magnesium alloy (Mg) body: Nikon's advanced technologies and mechanisms are housed within a rugged, lightweight magnesium alloy chassis and body ready for the most rigorous of assignments. Additional sealing for dust and moisture add to the D200's strength.\n5fps high-speed continuous shooting: Capture fast action and fleeting expressions with the ability to capture high-resolution images at a rapid 5 frames per second in continuous bursts of up to 22 NEF (RAW) or 37 JPEG (FINE - LARGE) shots**\nFast SLR response where it counts: Instant power-up in just 0.15 seconds, a shutter release time lag of a mere 50 milliseconds, and a shortened viewfinder blackout time of just 105 milliseconds makes the D200 ready to respond to any photographic situation\nNew, 11-area Multi-CAM AF System with 7 Area Wide AF: The new Multi-CAM 1000 AF Sensor Module offers an 11-area AF that ensures consistently fast and precise focus lock under varying shooting conditions. The 7-wide area AF system, offers broad coverage suited for moving subjects enabling greater compositional freedom\nLarge 2.5-inch LCD monitor with wide angle viewing to 170 degrees: A high-resolution LCD monitor provides ultra-wide, 170 degree viewing in all directions. Assisting with accurate sharpness assessment, images can be previewed at up to 400% magnification\nNew EN-EL3e Rechargeable battery with Fuel gauge function: The high-energy EN-EL3e rechargeable lithium-ion battery lets you capture up to 1,800 shots per charge featuring an accurate real-time Fuel gauge system that displays the percentage of remaining charge, number of shots since last charge and overall status of battery service life.\nWireless Transmitter WT-3a: The optional Wireless Transmitter WT-3a provides wireless functionality with IEEE 802.11b/g technology; it enables cable-free image transfer to a compatible computer, with the added safety and versatility of wide-ranging network and security protocols (available Fall 2006)\n**When using select high performance CompactFlash cards capable of and certified for this performance specification. CompactFlash cards enabling this specification are subject to change. Contact Nikon technical support (800-NIKON-UX) for latest information\n$1699.95 ESP1 Camera body only, lens sold separately2\n$1999.95 ESP1 Packaged with 18-135mm DX Zoom Nikkor lens2\n$1999.95 ESP1 Packaged with 18-70mm DX Zoom Nikkor lens2\n$2399.95 ESP1 Packaged with 18-200mm DX Zoom Nikkor lens2\n$100 Instant Savings: From June 1, 2007 through August 31, 2007 you can receive Instant Savings with the purchase of a D200. See your participating dealer for details.\n1ESP (Estimated Selling Price) listed is only an estimate. Actual prices are set by dealers and are subject to change at any time.\n2Configurations available at individual retailers may vary.","domain":"optical_engineering"}
{"url":"http://landh.co.kr/report/content.asp?idx=18792&cpage=1&spage=1&code01=K02&code02=07&ip=MarketsandMarkets&rtype=&stype=&stext=&m=&mm=&svtype=&align=createdate","date":"2019-04-24T18:50:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578655155.88/warc/CC-MAIN-20190424174425-20190424200425-00545.warc.gz","language_score":0.9358891248703003,"token_count":460,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__111859007","lang":"en","text":"LASER (Light Amplification by Simulated Emission of Radiation) technology has been used for various applications such as medical, industrial, military, research, commercial, consumer, automotive, and communication. The purpose of these applications is either scientific/laboratory experiments or the measurement/exploration of distances. Lasers have become robust, compact, and versatile with technological developments. These developments have triggered the commercial and industrial applications. This laser technology market report is segmented on the basis of different laser types, laser processing techniques, and laser applications. Also, it further provides a detailed segmentation analysis of the market based on various geographies. It also briefly explains the market drivers, challenges, opportunities, and trends in the laser technology market and forecasts the market till 2020. The different types of lasers can be divided on basis of the matter of state of the active medium which includes: solid, liquid, or gas; the characteristics of the radiation emitted from the laser; and the number of energy levels which participate in the lasing process.\nCurrently, North America has captured the laser technology market and according to the forecast, the next emerging region which will move its position upwards by 2020 will be APAC. Japan and Korea are primarily in the broadcasting system industry. China and Brazil will also show a growth and boost in profits.\nThe report presents detail analysis of different segments for the global Laser technology market which includes product types, resolutions, applications, and geography. The analysis of the global laser technology market is done with a special focus on the high growth in applications in each vertical and the fast growing application market segments. Illustrative segmentation, analysis, and forecast of the major geographic markets give an overall view of the global market used for various applications. However, only a few of these lasers are used for specialized research.CO2 lasers, fiber lasers, and solid state lasers are the most prominent lasers used in the market. Major players of the laser technology market are Trumpf (U.S.), JDS Uniphase Corporation (U.S), Coherent, Inc. (U.S.), Rofin-Sinar (Germany), Cymer, Inc. (U.S.), Newport Corporation (U.S.), and IPG Photonics Corporation (U.S.).","domain":"optical_engineering"}
{"url":"https://www.isoone-cleanroom-lighting.com/en/category/nouvelles-technologies-en/","date":"2021-08-04T15:14:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154878.27/warc/CC-MAIN-20210804142918-20210804172918-00380.warc.gz","language_score":0.9022212624549866,"token_count":582,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__42708457","lang":"en","text":"ISOONE is the winner of the ContaminExpo 2019 Innovation Award for Cleanroom Components.\nThe cleanroom world thus recognizes ISOGEO, an indoor light geolocation system, as the main innovation of the last two years in the ultra-propetric world.\nWe would like to take this opportunity to express our sincere thanks to the Aspec and the jurors of this award.\nFeel free to contact us to find out all the benefits that ISOGEO can bring to your clean room.\nMars, an Isoone innovation, lighting fittings for cleanrooms.\nIsoone presents a new range of recessed luminaires for cleanrooms, LEDs and access from the top. On innovative and compact formats we have developed this range, taking into account the problems of spaces available in false ceilings. These formats also allow us to reduce the weight of the luminaires and the risks of contamination.\nOn the other hand we wanted to adapt the Mars range to a maximum of users and uses, this is why the range of power is extremely wide, from 20 to 200W, ie 2000 to 20,000 Lumens emitted. The latter power is used to illuminate clean rooms of very great height, useful for example in the space industry.\nFinally, we introduce an entirely new range of optics: 30º, 60º with high-performance optics or a more extensive solution with the opal diffuser.\nIsoone is a luminaire manufacturer specialized in ultra-clean applications. The experience of its founders in the field of lighting for cleanrooms and the technological change towards LED generate opportunities for innovation which must improve the qualities of the luminaires by adapting them to the increasingly strict framework of the Control of contamination in sensitive industrial processes.\nSo that the qualities of our products bring value to yours.\nIn 20 years the efficiency gains in lighting are unprecedented, in the attached table we illustrate the evolution on a 600×600 luminaire for office lighting. The data are in flux emitted by the luminaire and the output in emitted flux / power consumed.\nOn the other hand, these efficiencies have not been achieved to the detriment of the luminous comfort since the luminaires are today all equipped with optical systems minimizing the luminances. This factor, added to the evolution of work screens, today all flat and orientable, allows a great visual comfort on the workstations.\nLet us not forget that the consumption of a lighting installation can be greatly optimized by the use of control and gradation systems that compensate for the entry of natural light by automatically reducing the power of the luminaires and extinguishing them In case of absence in the room.\nThis evolution is not meant to stop because the LED technology is in constant progression and that the luminaries will not escape the arrival of the connected objects.\nTo be continued…","domain":"optical_engineering"}
{"url":"http://breadmarket.com/archive/how-does-wavelength-affect-refraction-86e157","date":"2022-06-26T18:18:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103271763.15/warc/CC-MAIN-20220626161834-20220626191834-00457.warc.gz","language_score":0.8989140391349792,"token_count":1337,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__256399875","lang":"en","text":"Moreover, waves diffract best when the size of the diffraction opening (or grting or groove) corresponds to the size of the wavelength. The higher the index of refraction, the longer the wavelength in the medium. Whereas, if the index increases with increasing wavelength the medium has anomalous dispersion. The frequency, wavelength, and speed are related by: Index\nWhen would maximum diffraction occur for a single slit? Links\nBy signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. index of refraction : n = c / v When light travels from one medium to another, the speed changes, as does the wavelength. While the wave slows down, the frequency remains the same because its wavelength is shorter. Even though vaccines are ready? other than normal to the boundary, then the\nSorry for not being clear. red green and blue) shining through glass will there be a noticeable difference in how each laser bends?\na. Even our eyes depend upon this bending of light. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. GCSE Physics. Conversely, as the wavelength decreases, the angle of diffraction decreases. Refraction occurs when light bends as it crosses a boundary between two different mediums, each with a different index of refraction. Light\n(see the definition of wavelength). Light\nStill have questions? Hence, light diffracts more through small openings than through larger openings. At the front side of the lens, the rays are bent toward the normal (the perpendicular to the surface) because the glass is a denser medium than the air, and, at the back side of the lens, the rays are bent away from the normal as the rays pass into the less-dense medium of the air. Conversely, light emerging obliquely from a denser medium is bent away from the normal. The basic features of refraction are easily derived from Snell’s law.\nYahoo is part of Verizon Media. as it moves from one environment (medium) to another. The index of refraction can also be stated in terms of wavelength: Although the speed changes and wavelength changes, the frequency of the light will be constant. For example, the index of refraction of air at standard conditions is 1.0003, water is 1.33, and glass is about 1.5. Join Yahoo Answers and get 100 points today. The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. After refraction, the wave has the same\nOther optical imaging systems range from simple single-lens applications, such as the magnifying glass, the eyeglass, and the contact lens, to complex configurations of multiple lenses. Electromagnetic waves and the electromagnetic spectrum. Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. The bending is the result of light waves \"squeezing\" through small openings or \"curving\" around sharp edges. 8. The law of reflection can be used to understand the images produced by plane and curved mirrors. The bending is the result of light waves \"squeezing\" through small openings or \"curving\" around sharp edges. Is demonology the scientific study of demonic spirits? Do you notice that the absorption has a very predictable effect on the refractive index? The optics of the human eye is centred around the focusing properties of the cornea and the crystalline lens. GCSE Chemistry\nIn the special case where the incident beam is perpendicular to the boundary (that is, equal to the normal), there is no change in the direction of the light as it enters the second medium. Light rays passing through a lens are bent at both surfaces of the lens. How does a medium’s index of refraction affect wavelength? When light traveling in one transparent medium encounters a boundary with a second transparent medium (e.g., air and glass), a portion of the light is reflected and a portion is transmitted into the second medium. The formula for diffraction shows a direct relationship between the angle of diffraction (theta) and wavelength: d (sin theta) = m (wavelength) --> for constructive interference In some cases of anomalous dispersion it is possible that phase velocity exceeds speed of light c, (or in another words it's possible for n to be less then 1 or even negative) but this does not violate postulate of Theory of relativity because it does not indicate any superluminal information or energy transfer. The higher the index of refraction, the shorter the wavelength in the medium. Hence red light (long wavelength) diffracts more than blue light (short wavelength). If you have lasers with different wavelengths (i.e. Why is diffraction of light hard to detect. Factors affect the absolute refractive index of a medium. where n_red, n_yellow and n_blue are refractive indexes for red, yellow and blue light, respective, or alternatively: dn/dλ < 0. that is, refractive index n decreases with increasing wavelength λ. how far will it move in four centuries? a glacier moves a the rate of 43.0 meters per year.\nBe on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. And radio waves (really long wavelength) diffract more than X-rays (really short wavelengths). Water Waves,\nglasses) have: where n_red, n_yellow and n_blue are refractive indexes for red, yellow and blue light, respective, or alternatively: that is, refractive index n decreases with increasing wavelength λ. In vacuum, phase speed v is equal to speed of light c but in general case of propagation through medium, v differs from c. Usually v Harry Potter Rpg Tabletop,\nHyperbole Poems About Animals,\nPower Trip - Firing Squad Lyrics,\nRole Of Sales Promotion In Rural Marketing,\nHuman Waste Synonym,\nLand For Sale Israel,\nMickey Thompson 101216,\nHarry Potter Rpg Tabletop, Hyperbole Poems About Animals, Power Trip - Firing Squad Lyrics, Role Of Sales Promotion In Rural Marketing, Human Waste Synonym, Land For Sale Israel, Mickey Thompson 101216,","domain":"optical_engineering"}
{"url":"http://www.herbal-home-remedies.com/blog/746/can-people-with-dry-eyes-wear-contact-lenses/","date":"2018-02-21T15:07:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813626.7/warc/CC-MAIN-20180221143216-20180221163216-00549.warc.gz","language_score":0.9446654915809631,"token_count":659,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__152451134","lang":"en","text":"This is one of the most general questions asked by people suffering from dry eyes. People suffering from dry eyes find it difficult to wear contact lenses. With the advancement in science and technology even people suffering from dry eyes can wear contact lenses. There are various contact lens options available in market for people suffering from dry eyes.\nIn case of healthy eyes, a thin tear film is formed under the contact lens. But in case of dry eyes due to various reasons there is a reduction in natural tear formation, leaving your eyes with feeling of burning sensation and irritation. Using contact lenses in such condition will enhance the irritation and burning sensation.\nBefore selecting any contact lens it is important for people with dry eyes to evaluate a variety of contact lenses available in market. Make sure that a qualified contact lens fitter is available before you make your selection as he may guide in finding specific lens for dry eye condition. Listed below are the various contact lens options available for people suffering from dry eyes:\nSoft Contact Lenses:\nIt is observed that wearing contact lenses in dry condition is difficult. Hence many lens manufacturing companies are working to develop comfortable contact lenses even for dry eyes. In this process they have come across ways to make contacts comfortable. One way is by reducing water content of the lenses. It is observed that modern silicon hydrogel contact lens contains about 30% of water. With the use of new polymer in contact lenses also helps in keeping the lenses moist.\nSoft lens manufacturers like Vistakon and CooperVision have designed lenses which keeps the lens hydrated while on dry eyes. Other contact lenses like Proclear Compatibles, Extreme H2O, Purevision and Acuvue Oasys available in market are helpful for dry eye condition. These special lenses are made from special proprietary plastic which helps in retaining water content, shape and hydration throughout the day.\nRigid Gas Permeable (RGP) Contact Lenses:\nThese contact lenses are considered to be the best option for dry eyes. RGP lenses are made up of rigid plastic hence they don’t absorb much of water as compared to soft lenses. Basically RGP lenses are hydrophobic hence repelling water which in turn forms a tear film. This tear film keep your eyes and lens hydrated, reducing the discomfort associated with wearing contact lens on dry eyes.\nThere are different plastics used like extremely oxygen permeable or low wetting angle in making of RGP lenses. RGP lenses with plasma treatment are the latest advancement in contact lenses for dry eyes. When both are compared then plasma treatment proves to be better than RGP lenses.\nSemi-Scleral Gas Permeable Lenses:\nThis is another effective contact lens option for dry eyes. These lenses are made of gas permeable material but with a soft lens size. These lenses are as comfortable as soft lenses and at the same time provide benefits of gas permeable lens.\nThe type of lens you opt when suffering from dry eye is important but proper care and cleaning solution also plays an important role in the success of the lens. Make sure that you take proper care of both your eyes as well as contact lenses. Before selecting any contact lens it is better to consult your ophthalmologist.","domain":"optical_engineering"}
{"url":"https://origin-www.synopsys.com/blogs/optical-photonic/joya-team-success-story.html","date":"2024-04-20T14:10:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00186.warc.gz","language_score":0.9254245162010193,"token_count":369,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__28165977","lang":"en","text":"Augmented reality (AR) has the potential to transform how we interact with the world, but its success largely depends on the design and development of an effective optical system. Enter the JOYA Team and their work with Brilliant Labs.\nJOYA Team—an expert in augmented and virtual reality (AR/VR) systems design and development—partnered with Brilliant Labs to create a second-generation AR product. The mission: to design an AR product that was simple, built on mature technology, open-source for application builders, compact, scalable, friendly to mass adoption, and above all, affordable.\nTo accomplish this task, JOYA chose to use Synopsys’ CODE V and LightTools. CODE V was employed for optical design, optimization, and tolerance sensitivity analysis. Particularly helpful was the CODE V Image Simulation feature, which gave an accurate and realistic assessment of the AR optical system’s visual image quality during the early design stages. It also allowed for insight into how the image would change with various eye positions of the AR system user.\nMoreover, CODE V aided in defining a comprehensive set of product specifications that aimed to minimize design time, system complexity, and overall cost. It helped evaluate the impact on image quality when tolerances were relaxed to shorten production lead times.\nFollowing coding and design, JOYA used LightTools to create a virtual prototype—or digital twin—of the product, replicating all effects of materials, coatings, and surface finishes. This allowed for an accurate evaluation and visualization of the AR system’s performance without the need for a physical prototype. It provided essential information about image quality and resolution, image uniformity, color quality, contrast, see-through performance, ghost images and artifacts, and image quality changes based on the system pupil/eye position.","domain":"optical_engineering"}
{"url":"http://www.darmoptik.de/","date":"2017-04-29T03:42:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123270.78/warc/CC-MAIN-20170423031203-00364-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9104971289634705,"token_count":286,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__122119231","lang":"en","text":"Darmoptik’s innovative industrial fiber laser unites high beam quality, with a robust design and improved manufacturability. The single mode fiber laser can reach the maximum power range of 2kW with BPP less than 0.4mm×mrad. The technology, which was developed and patented in Germany, avoids complex single emitters pumping technology, and instead uses high brightness and high power diode laser modules pumping. The resulting laser systems are reliable sources for material processing, especially for laser welding and laser cutting, with low cost of ownership and a small footprint.\nDarmoptik, founded in 2011, develops and sells high power fiber laser and high brightness diode laser for wide industry applications such as laser cutting and laser welding. Closely working with famous institutes, we have significantly increased the brightness of high power fiber coupled diode laser and also have achieved the industry kW fiber laser.\nHeadquartered in Neuss, Germany, our core team has more than 25 years industry laser experience all over the world. We offer lasers with optical output power levels from a few hundred Watts up to the Kilowatt range.\nNews and Events\nDarmoptik releases EXCEL 1.5kW Single Mode OEM fiber laser for laser cutting and laser welding.\nDarmoptik introduces DioPower 1kW 400um fiber coupling diode laser system for industry and scientific applications.","domain":"optical_engineering"}
{"url":"http://academylight.com/","date":"2023-12-06T10:59:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100593.71/warc/CC-MAIN-20231206095331-20231206125331-00673.warc.gz","language_score":0.9056105017662048,"token_count":315,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__263554327","lang":"en","text":"The Academy Lights flexibility and light efficiency allows it to overcome most the of limitations of conventional picture lights.\nLowe energy, durable and replaceable LED lamps are employed to deliver optimal color rendering and specialy designed.\nThis is achieved through a unique combination of lensed LED heads, which can be:\n- selectively positioned across the picture span\n- interchangeable between several beam profiles\n- variably angled against the face of the picture\nThese features give unprecedented control over the distribution and uniformity of the light, which can be tailored to suit any piece of Art - of whatever shape or size.\nOur lights can also be transferred between paintings of different dimensions; simple re-configuration and re-alignment of the light heads makes them re-usable time and again.\nWhatever is required will be calculated by us and delivered to you, ready for installation.\n- Low energy, durable and replaceable LED lamps\n- Excellent colour rendering\n- Color temp. 2700K and 2w 24vdc per module\n- Optics options 28deg, 43deg, 60deg, and ellipsoidal 12 x 40\n- No damaging heat or UV emissions\n- Sleek, sicreet and elegant, with concealed light heads\n- A range of sizes and finishes, standard and bespoke\n- LIGHTS THE WHOLE PAINTING - EVENLY - FROM TOP TO BOTTOM\n- A low voltage tungsten halogen version available\nSuitable for the residental collector, as well as lighting designers and museum curators.","domain":"optical_engineering"}
{"url":"https://www.leuchtturm.com/line-magnifying-ruler-25x-magnification.html","date":"2023-03-25T20:43:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945372.38/warc/CC-MAIN-20230325191930-20230325221930-00670.warc.gz","language_score":0.8476328253746033,"token_count":125,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__79008807","lang":"en","text":"LINE Magnifying Ruler - 2.5x magnificationItem number: 367085\n9,95 € 0,00 € 9,95 € incl. VAT and exclusive of shipping\nItem in stock, delivery in 3-10 working days\nThe magnifier bar combines a magnifier and ruler for enlarging entire lines. Lens size: 24mm x 210mm. 2.5x magnification. Integrated additional lens for spotting details. The reading bar is made of crystal clear acrylic and has an integrated 150mm ruler. The product packaging is in English.\nYou may also be interested in these additional categories:","domain":"optical_engineering"}
{"url":"https://shop.toolrage.com/products/laser-laser-6610-digital-tachometer/","date":"2024-02-21T15:49:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473518.6/warc/CC-MAIN-20240221134259-20240221164259-00104.warc.gz","language_score":0.9288224577903748,"token_count":208,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__108125034","lang":"en","text":"The portable optical handheld tachometer from Laser is used for non-contact measurement of rotational speeds. Uses include maintenance and adjustment of various machines, conveyor belts, motors and belt drives and more. It uses photoelectric, anti-jamming and junction laser technology to provide non-contact measurements over a wide range (2.5 – 99,999 RPM) and at great accuracy (± 0.05% + 1 digit). A reflective mark is placed on the object to be measured (white reflective tape is provided for this purpose) and this is used as a target for the instrument’s integral laser light beam. The detecting distance is 50-500mm, and the sample time is just .8 sec, so that the rpm is displayed on the large and clear LCD display almost instantly. The digital tachometer has a memory function (minimum, maximum and last values) and 96 sets of continuous data can be saved. It includes a low battery indicator, and three AA batteries are included for added peace of mind.","domain":"optical_engineering"}
{"url":"https://flaneurwatches.com/products/leica-geovid-10x42-hd-b-3200-com-rangefinder-binocular","date":"2021-01-23T04:09:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703533863.67/warc/CC-MAIN-20210123032629-20210123062629-00772.warc.gz","language_score":0.7758578658103943,"token_count":1170,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__98192708","lang":"en","text":"Hunters and precision long range shooters who want to hit their targets reliably over long distances, at the range or in the mountains in every weather condition, require reliable, repeatable ballistic readings – within fractions of a second. The revolutionary Leica Geovid 3200.COM with Bluetooth® measures precisely to a true 3,200 yards on non-reflective targets. Industry leading optical quality and a rugged sleek design gives the new Geovid a long life and lasting value. As a binocular and rangefinder, it combines unmatched precision and performance with a new more robust Bluetooth® platform. Coupling these new features and Leica’s unrivaled optical qualities it gives shooters a new level of confidence in any situation mother nature can throw at them.\nUsing the new Leica Hunting App, the Geovid 3200.COM can now be quickly and easily adjusted and managed. Linking to a “Kestrel Elite” wind meter also allows you to utilize advanced “Applied Ballistics” incorporating your personalized ballistic values. Connectivity with the Apple Watch via your smartphone also means that ballistic data and correction values can be transmitted silently and error-free. For precise, repeatable, measurements you can rely on – anywhere and anytime.\nThe benefits at a glance:\nRanging capacity & Leica ABC ballistics\nPrecise repeatable rangefinding up to a true 3,200 yards – even on non-reflective targets in difficult weather and light conditions\n• 3 output formats: EHR, holdover, and number of clicks\n• On board sensors give air pressure, temperature and angle readings.\nLaser class 1 - Overall improved ranging performance in 100% eye-safe laser class 1First Geovid with Bluetooth connection - Maximum ease of use thanks to the possibility to program standard and ballistic settings over the new Leica Hunting App. 2.0\nKestrel Integration (w. Applied Ballistics) - In combination with a Kestrel Elite you get full access to Applied Ballistics solutions up to 3,200 yards directly displayed into the Geovid via Bluetooth.\nLeica Hunting App 2.0 - Next generation of the Leica Hunting App with improved user experience and reworked Leica ABC ballistic.\nApple watch connection - Connection to an Apple watch via your smartphone for a silent shooter-spotter experience. Ballisticsolutions are displayed on the watch display.\nSuperior optical quality, sleek rugged design - German engineering, robust materials and the highest-quality optics for lasting value and a lifetime investment.\n|Delivery Scope||Contoured Neoprene carrying strap, front lens caps, eyepiece caps, Cordura case, battery|\n|Front lens diameter||42mm\n|Field of view at 1,000 yds / 1,000 m||342 ft. / 114 m|\n|Field of view for spectacle wearers||> 312 ft. /104 m|\n|Objective angle of view||6.45°|\n|Close distance||approx. 16 ft. / 5 m|\n|Diopter compensation||± 4 dpt|\n|Distance Measurement: Range||10 up to approx 3,200 yds / 2,950 m|\nDistance Measurement: EHR\n|10 up to 1,200 yds / 1,100 m|\n|Distance Measurement: Accuracy||± 0.5 yds at 10 - 219 yds / ± 0.5 m at 10 - 200 m\n± 1.0 yds 219 - 438 yds / ± 1.0 m at 200 - 400 m\n± 0.5 % above 438 yds / 400 m\n|Measuring time||max. approx. 0.3 s|\n|Measuring modes||Scanning mode, single measurement|\n|Switchover meter / yard||yes|\n|Ballistic function||Equivalent horizontal range (EHR),point-of-impact correction (holdover),necessary number of clicks for reticle adjustment|\n12 pre-installed curves\n|ACD – Angle Compensated Distance||no\n|Output \"ballistic measurement\"||yes|\n|Output \"equivalent horizontal distance\"||yes|\n|Output \"click adjustment\"||yes|\n|Kestrel connection with Applied Ballistics||yes|\n|Use of own ballistic data||no|\n|Eyepieces for eyeglass wearers||yes|\n|Eyecups||yes, rotary sliding sleeve, detachable, with 4 click-stops|\n|Prism system||Perger-Porro system|\n|Lens coating||HDC® multilayer coating,AquaDura® coating|\n|Focusing||Internal focusing via central drive|\n|Laser||Eye-safe invisible laser according to EN and FDA class 1|\n|Laser beam divergence||1.2 x 0.5 mrad|\n|Display||LED display with 4 digits,easily legible in any light|\n|Barometric pressure sensor||yes|\n|First destination logistics||no|\n|Battery||1 x 3 V / Lithium-type C2R|\n|Battery lifetime||approx. 2,000 measurements at 20 °C / 68 °F|\n|Watertightness||Watertight to a depth of 16 ft / 5 m|\n|Dimensions (W x H x D)||4.9 x 6.9 x 2.8 inch / 125 x 174 x 70 mm|\n|Weight||approx. 34.5 oz / 980 g incl. battery|\n|Accessories||- Floating carrying strap (42 163)- Tripod adapter (42 220)|","domain":"optical_engineering"}
{"url":"https://iaretalk.com/what-is-the-best-air-rifle-scope/","date":"2023-06-09T18:14:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656788.77/warc/CC-MAIN-20230609164851-20230609194851-00257.warc.gz","language_score":0.9055370688438416,"token_count":1838,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__136095899","lang":"en","text":"We use Amazon to create the list of the best air rifle optics. This site was chosen for many reasons. Most importantly, it is one of the best online stores with numerous customer reviews and a convenient comparison function. All compressed air rifle optics in our list are available on this website.\nPeople who have no idea about compressed air rifle optics will not be able to choose the best item quickly. There are hundreds of products from different brands, and it is very difficult to compare their offers on your own! We recommend that you simplify the task by using our help. Read our buying guide and choose an option from our list of the best air rifle optics.\n6 Best Air Rifle Scope\nStyle Rifle Scope 4-16 × 50 For Air Rifles\nThis best long range scope for the money cannot be a part or accessory of an assault weapon. Integrated rails provide ample space for accessories. 12 months warranty will be provided to all our scopes. Advantage of the viewfinder: High quality fully coated optical lens, dry nitrogen filled with waterproof, shockproof, anti-fog. Magnification: 4x-16x suit for any Picatinny rail w / 22mm. The viewfinder is red and green multi-x reticles with 5 levels: pupil output: 3.3mm-10mm; the field of view: 10 ‘~ 27’ 100yards; eye relief: 3 “~ 3.4”; windage & elevation click value: 1/4 ‘100 yards; with 50mm beautiful flower lens makes your lens unique in amazon. Excellent fully coated lenses, high quality matte black finish, Dry nitrogen filled with 100% waterproof, impact-resistant,\nFast focus eyepiece with 1/4 “resettable fingerprint and elevation adjustments. Aiming distance of about 50 – 100m, the best choice for long eyelet shooting: 66.8-99.06mm, the field of view: 13.41-40.38 100yards, exit pupil: 3.3mm-10mm. Wide 4x-16x magnification provides great visibility at 200-1000yards. 5 red and green levels, the illuminated adjustment provides better viewing in dark environments. Three parts with more functions – plus electric control, the red sight, and flashlight are ideal for quick acquisition of close and fast targets. When targeting a large deer or other prey at 200 meters, you save more time. For this purpose, you can easily install other equipment such as the flashlight, which helps more in the hunting environment’s darkness.\nStyle Rifle Scope 4 × 32 Air Rifle Rifle Scope\nFixed 4x magnification, objective diameter – 32mm, low magnification and long clear, ideal for close-range action, from crossbow hunting to gun shooting to simple edge shooting action. Shock and Recoil Resistant, Nitrogen Resistant, Shockproof, Fog Resistant, and Water Resistant. The exit pupil of eight millimeters, the field of view of 36.6 feet at 100 yards, and weight of 16.4 ounces. High-performance optical scope with fiber optic optics for fast acquisition manufactured multi-layer optics. Red-green-blue illuminated glass etched reticle.\nUMsky Air Rifle Scope 4 x 32 Airsoft Sniper Riflescope\nMade of a high-strength aluminum alloy and with its one-piece tubular structure, the lens is certainly more resistant and long-lasting. Magnification: 4x; Lens diameter: 1.26 “(32mm) distance from eye: 4.13” (105mm) Length: 7.48 “(190mm). The length of the entire oscilloscope is 190 mm. This makes this compact riflescope suitable for fast movement and aiming. Inert gas cleaning, fog, shock, waterproof, this ferrule can be used in all weather conditions. With the fully coated optical glass, the range will give you a bright and contrasting image.\nFOCUHUNTER Cobra Fangs Optics Riflescope\nOne-year warranty: come with a lens cloth and protective caps to clean and protect the lens, a set of mounting rings, and a wrench. Cobra fangs riflescopes have a 1-year warranty, and feel free to contact us with any inquiries. Aerospace Aluminum Alloy: The riflescope is made of one-piece aluminum alloy, shockproof and water-resistant, extremely sturdy when shooting. The nitrogen-filled tube ensures rain protection and prevents mold, which is resistant to all weather conditions. Professional Optical Scope: Full green. 50mm multi-layer lens is large to provide a wide field of view. 95% high transmission gives you a clear picture which decreases refection and eye tiredness.Powerful 4x to 24x magnification is great for outdoor hunting. Red / Green Reticle: Just turn the rheostat knob to adjust the brightness in 5 levels and the color of the viewfinder for different contours. Mil-dot design helps calculate the distance to the target, track and aim more precisely.\nPrecise Adjustable Knob: Rotate the bottom wheel to unlock the turret and rotate the knob to adjust the height and direction. Built with the side knob to adjust the side focus and rotate the eyepiece to match the distance to the shooting target to help eliminate parallax.\nUMsky Rifle Binoculars, Rifle Scope 4 12 × 50 Rifle Scope\nTouch range of the shooting range with the pressure switch in the rat tail line high quality black matte finish, the color is the red and green reticle, unlimited brightness control 5 levels. Height and wind recordings with audible 1/4 moa -click firm and after finger turrères. 100% waterproof and fog-proof and shock-resistant dry nitrogen filled with dual flashing graphic streetlight / multi-coated optical sight with 33mm reflex lens offers a wide field of view, suitable for normal and rapid-fire moving targets, easily mountable on all 22mm rails (Picatinny or Weaver). The electronic red and green holographic perspective is electronically controlled, screw by hand. It is much easier and clearer than other screw points. There is a better choice for fast-moving targets in hunting.\nA musky gift: multifunctional tactical sphere outdoor package. New style button with an electronic brightness control easier than the hand control. Hd104 dot reflex red dot with lower switch for ar10.15, ak47, m4 – very accurate gun optics and clear picture replace too expensive holograph, high resolution, unlimited terrain, and wide field of view.\nPinty Telescopic Sight Scope For Rifle Rangefinder\nThe O-ring gasket and nitrogen filling guarantee 100% waterproofness and the absence of fog. Highly flexible and robust aero-space aluminum alloy. This riflescope’s lens cap offers maximum maneuverability and helps protect both the objective and ocular lenses of the riflescope while keeping the lenses clean. Green and red dot for different environments, magnification from 6x to 24x. The rangefinder reticle provides quick and easy aiming points for different shooting distances.\nHow did you compile the list of the best optics for compressed air rifles?\nWe consider so many factors that it is almost impossible to inform you about all of them. Confide in me; we’ve done a pretty good job. This TOP-10 list was created using pricing, content, user rating, and other optical compressed air rifle functionality. We’ve done our utmost to assist you in choosing the best air gun!\nIs Amazone.com a good place to buy a compressed air rifle scope?\nNowadays, online shopping is completely safe. It might even be safer to shop regularly since you don’t have to leave your home to buy the products you need. There is nothing dangerous about buying compressed air rifle optics in the Amazon. After all, you can always get a refund if you don’t like the model you bought or received in a faulty condition.\nIs there anything special I need to know before buying a compressed air rifle scope?\nBefore you buy it, you can find everything you need to know about any specific compressed air rifle scope on Amazon. That’s why we like this market so much: it offers a very affordable website with a “Compare” function and hundreds of user reviews. Read them to understand if a compressed air rifle scope is right for you.\nShould I get a compressed air rifle scope with a lifetime warranty?\nThe companies that produce compressed air rifle optics offer all kinds of guarantees for every taste. Generally speaking, budget models only have a 6-month warranty or don’t have it at all. Average users suggest a two-year warranty for compressed air weapons, but we think the five-year warranty is much cheaper and safer. Simultaneously, our team would not recommend buying models with a lifetime warranty, as the vast majority of them are too expensive.","domain":"optical_engineering"}
{"url":"https://motorcycledavidsonsoftail.com/en/led-front-headlight-optics-for-harley-davidson-breakout-softail.php","date":"2024-04-21T23:57:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818067.32/warc/CC-MAIN-20240421225303-20240422015303-00060.warc.gz","language_score":0.9274340867996216,"token_count":282,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__162713450","lang":"en","text":"Housing material Pressure die-cast aluminum housing. Certifications IP67, CE, RoHS, DOT.Lifespan Over 50,000 hours. The benefits of LED front headlight for Harley Davidson. Our LED motorcycle headlight ensures that your bikes are ready for the road and trails. These LED headlights are built with an unbreakable and waterproof IP67 projector lens, they can be used in a variety of environments. IP67 waterproof rating: After high-intensity tests, even in the cold of winter, there are no cases where the lights do not turn on due to the cold.\nWith the IP67 waterproof rating, the sealing is effective in all weather conditions. Excellent heat dissipation: The cooling system and special design of the ventilation holes at the back of the aluminum housing allow moisture and heat to be expelled from inside the shell.\nSafe driving: The response speed of LED lights is faster than halogen lights, and they have very high brightness and a very wide field of vision, so the driver can drive freely in the dark without worrying about driving issues caused by the darkness of the road. Modern design: 7-inch diamond motorcycle headlight, surpassing the appearance limits of round LED motorcycle headlights on the market. Very easy installation, as a direct replacement for the original headlight assembly.Your specialist in carbon parts, poly fairings, workshop stands, and motorcycle accessories.","domain":"optical_engineering"}
{"url":"https://dslrad.com/why-are-camera-lenses-so-expensive/","date":"2024-04-19T02:50:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817253.5/warc/CC-MAIN-20240419013002-20240419043002-00410.warc.gz","language_score":0.9585613012313843,"token_count":1010,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__13635294","lang":"en","text":"We hope you love the products we recommend and just so you know that as an Amazon Associate, DSLRad may earn from qualifying purchases.\nOK, so why are camera lenses so expensive?\nThe truth is that camera lenses are expensive because they need to be made to a very high quality to achieve crystal clear, in-focus images. Lenses are intricately crafted with precision glass optics and metal housings to produce clear, sharp photographs.\nA camera lens is one of the most important and expensive components of a camera. It’s responsible for capturing an image from the scene in front of it and bringing it into focus.\nCamera lenses can cost tens or even hundreds of thousands of dollars depending on their quality, size, and features such as zoom capabilities or tilt-shift capabilities.\nManufacturers need to make sure that all these features work well together so that the photographer can take the best possible pictures without having to worry about anything else on their camera going wrong.\nSo there are FIVE key factors that make lenses really expensive – Here they are.\nPrecision Glass Manufacturing\nLenses have perfectly shaped pieces of curved glass. To shape this glass, expensive, precise machinery is required to cut, polish, and buff them into the exact shape required. This machinery makes it possible for lenses to be manufactured with tremendous precision. This does, however; have the effect of making lenses expensive as they are specialized and the machines are very costly.\nElements and Groups\nNot all lenses have the same number of glass elements within them.\n‘Elements’ are the individual glass lenses within a lens, while ‘groups’ are either a series of lenses or two or more lenses fixed together. While it might seem like having more elements and groups would make a lens clearer, that’s not actually true.\nThere is no definitive answer to whether more or fewer elements and groups will increase the quality of the lens, but you can be sure that the more there are, the more expensive it is for the manufacturer to produce.\nThe mechanics inside of the lens allows movement of the internal glass toward or away from one another and the image sensor. Not only that, certain glass elements within the lens are responsible for making different things come into focus at different distances.\nThey are rings on the outside of the camera lenses. For either Zoom or Focus. Those rings turn gears that are inside the camera lens which in turn move the glass back and forth. All of this is tightly packed inside these lenses.\nWhile this feature could be described as one of the mechanical features of a lens, it does warrant its own mention here. The quality of autofocus (including the mechanical and computational ability – ie. the reactive speed of the lens) is a huge contributor to the manufacturer’s cost in producing a lens and therefore causes the price to increase with quality.\nThis technology, which is packed inside this lens, enables it to move back and forth, in tiny fractions of an inch, without actually physically touching the rings.\nThe next item on the list is the lens’ aperture blades.\nThese are thin blades made of different kinds of materials that are packed tightly together and simultaneously. All of them have closed down or open up to allow less or more light into the camera. These blades have been opened or closed form the funky shapes and circles in the background of some images – also known as bokeh.\nAnd then to add to these three factors. There are other things, like image stabilization, and build quality, For each of the things that I mentioned above, you can also get better quality versions. Such as better quality glass, Better quality focus technology, basically the price increases as build quality increases. So there you have it. These are the basic elements that make lenses really expensive.\nHow to know if you’re getting a good deal on a lens\nWhen trying to get the best deal on a lens, it is important to know the difference between lens costs and other factors that may drive up the price.\nA good way to get a feel for what a lens should cost is by looking at what other lenses in your price range are going for. The best way to find this information is by checking out sites like Consumer Reports or PCMag.\nSo why are camera lenses so expensive?\nBasically, it all comes back to quality. You really do get what you pay for with a few minor exceptions.\nBrad is a seasoned photographer whose journey began in 2006 with a 3.1-megapixel digital camera. Over the years, he has specialized in various photography genres—from weddings and portraiture to product and studio photography. Based on the Sunshine Coast of QLD, Brad combines his love for education and photography, sharing his expertise on DSLRAD.com, a platform committed to capturing life’s treasured moments and empowering photography enthusiasts.","domain":"optical_engineering"}
{"url":"https://www.creative-biostructure.com/blog/near-infrared-zone-ii-fluorescence-imaging-technology-and-its-prospects-in-biomedical-applications/","date":"2021-04-22T21:46:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039604430.92/warc/CC-MAIN-20210422191215-20210422221215-00540.warc.gz","language_score":0.887162983417511,"token_count":783,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__201809770","lang":"en","text":"Fluorescence imaging technology has broad application prospects in basic biomedical research and clinical diagnostic testing. Near-infrared zone II fluorescence (1000-1700nm, NIR-II) imaging technology overcomes the strong tissue absorption, scattering, and autofluorescence interference faced by traditional fluorescence (400-900nm), and can achieve higher tissue penetration depth in vivo imaging with time and space resolution, it is regarded as the most promising next-generation in vivo fluorescence imaging technology.\nWang Qiangbin, a researcher at the Suzhou Institute of Nanotechnology and Nano-Bionics, Chinese Academy of Sciences, and his team focused on the emerging field of “Near-Infrared II Zone Live Imaging Technology”, after more than ten years of hard work, achieved systematic research results: the first to propose Ag2S quantum dots system in the world, reported for the first time the near-infrared II region fluorescence properties, and further expanded the Ag2Se, Ag2Te, and other quantum dot systems, established a full-spectrum quantum dot system covering the near-infrared II region. They developed the small animal imaging system in vivo with planar array detector based on short-wave infrared indium gallium arsenide (InGaAs), and the wide-spectrum (400-1700nm) small animal in vivo imaging system compatible with visible fluorescence imaging, which has laid a solid foundation for the development of cross-level, cellular, and small animal in vivo models multi-scale near-infrared zone II fluorescence imaging research.\nA biomedical research technology platform has been established for “visualization” of near-infrared zone II fluorescence in vivo. This in situ and real-time imaging platform at the level of small animals in vivo achieving high tissue penetration depth (>1.5 cm) and high penetration, with temporal resolution (~30 ms) and high spatial resolution (~25 μm), which has an order of magnitude improvement over traditional fluorescence imaging technology; These researchers established accurate “visualization” research strategy for tumor diagnosis and treatment, drug screening, stem cell regenerative medicine and brain science.\nIn view of the above series of studies, the team was invited by the Journal of the American Chemical Society to write an article titled Advanced Fluorescence Imaging Technology in the Near-Infrared-II Window for Biomedical applications. This prospect reviews the principle of near-infrared zone II fluorescence imaging technology and its development process; systematically introduces the design, development and advantages and disadvantages of different types of near-infrared zone II fluorescent probes in the past ten years; summarizes the near-infrared zone II development and application of fluorescent small animal live imaging system, two-photon microscopy imaging system, laser confocal imaging system, light-sheet imaging system and clinical surgical navigation system; analyzes the biological structure and function of near-infrared zone II fluorescence imaging technology applications in biomedical research such as imaging, living body sensing detection, and image-guided precise diagnosis and treatment of diseases, and bottlenecks that need to be resolved; prospects for the future near-infrared zone II fluorescence imaging technology in probe design, equipment development, and precise tumor diagnosis and treatment; the key issues that need to be resolved in stem cell regenerative medicine, brain science basic research and clinical application, accelerate the clinical application of near-infrared zone II fluorescence imaging technology.\nChunyan Li, Guangcun Chen, Yejun Zhang, et al. Advanced Fluorescence Imaging Technology in the Near-Infrared-II Window for Biomedical Applications. J. Am. Chem. Soc. 2020, 142, 35, 14789–14804. August 7, 2020, https://doi.org/10.1021/jacs.0c07022","domain":"optical_engineering"}
{"url":"http://www.szbrando.com/sdp/1400797/4/nd-5886851/180397.html","date":"2023-02-06T19:10:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500357.3/warc/CC-MAIN-20230206181343-20230206211343-00619.warc.gz","language_score":0.94353848695755,"token_count":307,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__86415740","lang":"en","text":"|Coal miners were frequently at danger from explosive mixtures of methane gas in the atmosphere of the mine. Its very important to provide adequate and safe light to enable miners to work underground.|\nLED mining lamp is used to replace the traditional lamp beads as the luminescent body with high brightness LED light source, and cooperate with the mining lamp produced by lithium ion battery.Compared with the traditional lamp, this product has the advantages of small volume, light weight and efficient energy-saving lamp.The LED mining lamp can be used for all kinds of underground mining operations, tunnel operation, ocean operation, maintenance work, outdoor sports, hunting night fishing, expedition, soldiers' equipment, etc.\nBRANDO provided a variety of miner lights, such as corded lamp, semi-corded lamp and cordless.\n* The brightest corded lamp up to 50000lux\n* semi-corded lamp with excellent weight balance on helmet\n* Cordless light weight only 120g.\nThe lamp is included with a special charger, which does not need to be equipped with others charging equipment and maintenance workers. Also can be energized by smart phone's(USB cable). The charging cost is only one sixth of the traditional one.\nThe lamp has the function of overvoltage, overcurrent, overdischarge automatic protection, safety and explosion-proof.\nThe lamp case is made of engineering plastics and bullet-proof glass, which can work in all kinds of harsh environments.","domain":"optical_engineering"}
{"url":"https://www.novatron.co.uk/shop/light-meters-novatron-lux-meter/","date":"2021-03-09T01:25:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178385534.85/warc/CC-MAIN-20210308235748-20210309025748-00320.warc.gz","language_score":0.8449612259864807,"token_count":94,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__206093402","lang":"en","text":"Light Meters – Novatron Lux Meter\nDesigned to give light level readings up to 50,000lux. It has a sensor connected to the meter by one metre of coiled lead (when extended). This allows light measurement to be made away from the subject area, thereby minimising errors due to shadow,etc.\nCall our sales team on 01403 754416 for more information\nEnquire about this product\n0 – 1999 lux -resolution 1 lux","domain":"optical_engineering"}
{"url":"http://leotageldo.gq/2661/8x32%20Compact%20Binocular%20Telescope%20Black%20HD%20Waterproof%20lll%20Night%20Vision%20Binoculars%20Outdoor%20Camping%20Hunting%20Bird%20watching%20Telescope%20in%20Monocular%20Binoculars%20from%20Sports%20Entertainment","date":"2020-02-20T01:52:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144498.68/warc/CC-MAIN-20200220005045-20200220035045-00479.warc.gz","language_score":0.7620095014572144,"token_count":254,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__188056700","lang":"en","text":"Item: 8x32 Binocular Telescope\nObjective Diameter: 32mm\nEyepiece Diameeter: 20mm\nExit Pupil: 4mm\nEye Relief: 16mm\nFOV: 7.5 degree\nPrism: Roof BAK4 prism\nObjective Coating: FMC green film\nEyepiece Coating: FMC blue film\nDiopter Adjustment: Right Eyepiece\nEye Cup: Twist-up\nWaterproof: Nitrogen-filled Waterproof\n1. Objective Multi-optical multi-layer composite broadband green film has better light transmittance; it looks very clear even under weak light conditions.\n2.All optical glass lenses, FMC blue film, more clear and sharp imaging, no color difference, wide field of vision.\n3.Unique non-slip hand wheel design, just turn the hand wheel, you can debug a clear picture, feel more comfortable.\n4.Right parallax adjustment. Since some friends have parallax in the left and right eyes, parallax can be eliminated by fine-tuning the right eyepiece.\n1pc 8x32 binoclar\n1pc storage bag\n1pc wiping cloth","domain":"optical_engineering"}
{"url":"https://www.thewave.info/DOF%20Easy%20Support/Help%20Request.html","date":"2023-03-22T21:53:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944452.97/warc/CC-MAIN-20230322211955-20230323001955-00169.warc.gz","language_score":0.9310386776924133,"token_count":2831,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__124727209","lang":"en","text":"Answers to most questions about the usage of DOF Easy can be found in the Help section below. If you need additional help or to report issues please complete the following form:\nDOF Easy is unique among Depth of Field Calculators. With most DOF Calculators you enter the focus distance and the aperture and the calculator tells you whether your scene will render in focus. DOF Easy starts with information about the scene (a range of distances) and DOF Easy tells you where to focus and what aperture to use. It also shows blur amounts as a function of distance. Users can easily see how the amount of blur, in pixels, changes with distance from the focal plane.\nDOF Easy is designed to be \"easy\". While all inputs are required, defaults are available for most of them. Key inputs are saved between runs so they do not have to be re-entered. Key outputs are shown first. These include optimal focus distance and aperture, and the amount of blur at the near and far points in your scene. Blur diameters are stated in simple to understand pixels as well as in millimeters. The hyperfocal distance is also shown. The program also computes a variety of additional outputs. These include information about the sensor, the lens, the diffraction limited aperture, and a detailed table showing how blur changes with distance.\nIf a field has a dotted underline then additional help on the input can be obtained by clicking or pressing on the underlined text.\nCamera Format provides information about the size and aspect ratio of the sensor. DOF Easy saves this information when you exit the program. It reloads the Camera Format on next use. Camera Format is used to calculate the crop factor and the effective focal length of the lens. It is also used to determine the standard of blur, commonly known as the circle of confusion (CoC). If you do not know the Camera Format you can search for it at https://www.digicamdb.com.\nThe Blur Standard, together with the Camera Format, determines the acceptable Circle of Confusion (CoC). The CoC is an optical spot caused by light rays not coming to perfect focus when a point source is imaged. When the CoC is small an image is perceived as sharp. What is perceived is sharp depends on the observer's vision, whether the image is viewed as a print, on screen, or via a projector, and on the viewing distance.\nFour different general standards are available in the program: Normal, Fine, Professional, and Ultimate. The \"Normal\" standard is the historical criterion of .03 mm. This standard is good for prints of up to 8 inches by 10 inches when viewed at ten inches by a person of normal vision. It is also good for web use. A \"Fine\" standard of .024 mm that is 20% sharper is also available, as are a \"Professional\" standard of .02 mm or 50 lines/mm, and an \"Ultimate\" standard of .01 mm or 100 lines/mm which is close to the resolution of modern day sensors. The last two standards should only be used with the very sharpest of lenses. All four standards .03, .024, .02, and .01 apply to Full Frame cameras. For other formats the effective CoC is the Blur Standard divided by the Crop Factor. For example if \"Professional\" is chosen as the blur standard and \"Canon APS-C\" the Camera Format the final CoC is .02 / 1.6 = .0125.\nThe program also allows you to enter the acceptable CoC directly. Values between .001 and .05 are available. No Crop Factor adjustment is made to the CoC in this case.\nThe program also saves the \"Blur Standard\" choice between runs so it only needs to be entered once.\nFocal length is the actual focal length of the lens, not the full frame equivalent.\nAperture strongly affects depth of field. Except for macro work the hyperfocal distance is inversely proportional to the aperture, so doubling the aperture, say from f/8 to f/16 will decrease the hyperfocal distance by a factor of 2.\nWhen selecting an aperture keep both lens quality and diffraction in mind. Lenses are usually their sharpest one or two stops slower than wide open. For example, an f/2.8 lens would be sharpest when shot at f/4 or f/5.6. Due to the effects of diffraction lenses start losing resolution at about f/11. Resolution at f/16 is typically about 20% less than resolution at f/8, and resolution at f/22 is about 50% less than f/8.\nNear Distance is the distance to the closest point in the scene. Also enter the units of measure. Distances can be entered in feet, inches, meters, or centimeters.\nFar Distance is the distance to the furthest point in the scene.\nFocus Distance is the distance at which the lens is focused. It is filled in automatically when you enter the near and far distances into the program and click or press on the small green calculator icon. The calculator icon computes the harmonic mean of the near and far distances, which is mathematically the optimal focus distance.\nThe focus distance can also be entered directly in the event that you do not wish to focus at the optimal point. This could be the case if you wish the background to be blurred, or if you wish the foreground or background to be a little sharper than the rest of the image.\nOptimal focus distance is the distance at which you should focus in the absence of unique conditions. It depends only on the distances to the closest and furthest points in the scene and is independent of focal length and aperture. It is the harmonic mean of the near and far distances. If nd is the closest point in your image, and fd the furthest, the harmonic mean is given by\nharmonic mean = 1/(average(1/nd,1/fd))\nWhen the far distance fd is infinity the harmonic mean is just twice the near distance. For all distances the harmonic mean is less than the average of the near and far distances, i.e. you should always focus closer to the nearest point than the average.\nRequired Aperture is the smallest f-stop at which objects at the near and far distances will be in sharp focus. Sharp focus is defined as blur less than or equal to the acceptable CoC. The required f-stop is calculated assuming you have focused at the Optimal Focus Distance.\nNearest Sharp Point is the distance to the closest point in the scene that will be in sharp focus. Sharp focus is defined as blur less than or equal to the acceptable CoC.\nFurthest sharp point is the distance to the furthest point in the scene that will be in sharp focus. Sharp focus is defined as blur less than or equal to the acceptable CoC.\nTotal depth of field is the difference between the far and near points of acceptable focus. It depends on where you are focused, the CoC, and the aperture.\nBlur at Near Distance (mm) shows the amount of blur on the sensor of the closest point in the scene. It is defined as the diameter of the blur circle on the sensor in mm. The Blur at Near Distance is color coded. When the amount of blur is less than or equal to the acceptable CoC the Blur at Near Distance is shown in green, with darker colors indicating less blur.\nBlur at Far Distance (mm) shows the amount of blur on the sensor of the furthest point in the scene. It is defined as the diameter of the blur circle on the sensor in mm. The Blur at Far Distance is color coded. When the amount of blur is less than or equal to the acceptable CoC the Blur at Far Distance is shown in green, with darker colors indicating less blur.\nBlur at Near Distance (pixels) shows the amount of blur on the sensor of the closest point in the scene. It is defined as the diameter of the blur circle on the sensor in pixels. The Blur at Near Distance is color coded. When the amount of blur is less than or equal to the acceptable CoC the Blur at Near Distance is shown in green, with darker colors indicating less blur.\nBlur at Far Distance (pixels) shows the amount of blur on the sensor of the furthest point in the scene. It is defined as the diameter of the blur circle on the sensor in pixels. The Blur at Far Distance is color coded. When the amount of blur is less than or equal to the acceptable CoC the Blur at Far Distance is shown in green, with darker colors indicating less blur.\nThe Hyperfocal Distance (HF) is the shortest distance beyond which all objects can be brought in into acceptable focus. It depends on the aperture of the lens and the CoC. Note than when you are focused at the hyperfocal point all objects between the hyperfocal distance divided by two and infinity will be in sharp focus.\nNote that the hyperfocal distance is not the distance at which you should focus your camera! Focusing at the hyperfocal distance is a mistake many photographers make. Before smartphones became readily available landscape photographers would carry \"Hyperfocal Charts\" with them on shoots. The charts showed, for a variety of apertures and focal lengths, the hyperfocal distance. If the scene includes very distant points you could quickly determine the aperture to use and get a good idea of where to focus since all point between the hyperfocal divided by 2 and infinity will be in sharp focus.\nIf the nearest point in the scene is further than the hyperfocal distance then focusing at the HF is not optimal. You will get a sharper image if you focus further out. Focus at twice the distance to the closest object in the scene.\nThe Acceptable Circle of Confusion (mm) (CoC) is the amount of blur in mm that is acceptable in the final image. It is computed from the Camera Format and the Blur Standard.\nThe Acceptable Circle of Confusion (pixels) is the amount of blur in pixels that is acceptable in the final image. It is computed from the Camera Format and the Blur Standard.\nFields here are shown for information only.\nThe diagonal, width, and height fields show the size of the sensor in millimeters.\nThe Pixels/mm field shows the number of pixels per millimeter of the sensor. This field is used to convert blur amount in mm to blur amounts in pixels.\nmm/Pixel shows the size of a pixel on the sensor.\nLines/mm is Pixels/mm divided by two since one line consists of both a light pixel and a dark pixel.\nArea/mm2 show the area covered by the sensor.\nThe Crop Factor is the ratio of the diagonal of a full frame camera (43.3 mm) to the sensors diagonal. Typical crop factors are 1.6 for a Canon APS-C camera, 1.5 for a Nikon DX camera and 2.0 for a Micro 4/3 camera by Olympus or Panasonic.\nFields here are shown for information only.\nThe Full Frame Equivalent Focal Length of a lens is the actual focal length times the crop factor. The FFE focal length is used to calculate the horizontal and vertical angles of view.\nHorizontal field of view is the width in feet or meters of the observable world seen at the focus distance. It can be calculated as\nHorizontal FOV = focus distance × (36/FFE focal length).\nVertical field of view is the height in feet or meters of the observable world seen at the focus distance.\nHorizontal angle of view is expressed in degrees. It depends only on the full frame equivalent focal length and the aspect ratio of the camera.\nVertical angle of view is expressed in degrees.\nThe Airy Disk Diameter (mm) is the size of the blur spot caused by diffraction. It is a function of lens aperture. Stopped down lenses produce larger airy disks (blur). It is also a function of color temperature with reds showing the largest airy disks and blues the smallest. Blur Calculator uses 5250K as the default color temperature. 5250K is the color temperature of typical daylight. Airy disk size increases linearly with aperture, so an image stopped down to f/22 would have an airy disk nearly three times (22/8) larger than one at f/8.\nAiry Disk Diameter (pixels) is Airy Disk Diameter (mm) × Pixels/mm. As sensor pixel density increases the size of the airy disk in pixels also increases.\nDiffraction Limited Aperture is the aperture at which the airy disk exceeds one line pair (2 pixels) in size.\nThis section shows the amount of blur at various distances. Amounts of blur on the sensor are shown in both pixels and millimeters. Rows are highlighted in green when the amount of blur is less than the acceptable CoC. Darker greens indicate less blur.\nFor more detailed information about depth of field, achieving optimal focus, and creating high quality images please visit https://www.thewave.info/DOF/DOF.html\nDOF Easy 1.0.0\nCopyright (C) 2017 William H. Belvin\nDesigned and Programmed by William H. Belvin\nThis program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.","domain":"optical_engineering"}
{"url":"https://www.vationventures.com/research-article/what-is-lidar-technology","date":"2023-12-08T02:31:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00884.warc.gz","language_score":0.9415419101715088,"token_count":2763,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__282998420","lang":"en","text":"LiDAR utilizes laser beams to construct three-dimensional (3D) models of varied objects and environments. These accurate representations of any surveyed environment enable us to create more advanced and autonomous technologies that can perform tasks ranging from speed adaptation to collision prevention to assembly line monitoring.\nHowever, the most tangible benefit of LiDAR is its ability to improve business efficiency and revenues. By implementing LiDAR technology across business segments like manufacturing, construction, automotive, and more, business leaders can improve employee safety, ensure adherence to company policy, and minimize risks like data privacy breaches. Below, we look at LiDAR technology in more detail, including the key technology providers in the market today and its various applications.\nWhat is LiDAR technology, and how does it work?\nLiDAR (Light Detection and Ranging) is a technology that remotely senses depth by bouncing laser light off objects to determine their distance. By timing the flight of reflected light pulses, LiDAR instruments create maps of scenes based on the objects within them. While the most recognized use case for LiDAR is probably that of autonomous vehicles, the technology has a wide range of applications, including advanced smartphone cameras, industrial robotics, indoor mapping, outdoor mapping (topographic LiDAR is used to map landforms, while bathymetric LiDAR can “see through” water to measure the height ocean floors and riverbeds), smart cities-focused data gathering, speed limit enforcement, mining operations management, and even space exploration.\nWhat are the primary components of a LiDAR instrument?\nA typical LiDAR instrument comprises three core components: a laser, a scanner, and a specialized GPS receiver. These components are used cohesively to take measurements and make rapid mathematical calculations regarding direction and distance. Automated vehicles are a good example of how the LiDAR technology’s components work cohesively to provide a mapped environment.\nFirst, the laser source emits laser signals at a rate of up to millions per second. These laser signals collide with objects and terrain around the vehicle, bouncing back to the scanner. Finally, the GPS receiver, which contains an IMU (inertial measurement unit), works to calculate the direction and distance of each laser, calculating the time taken for each wave to return. The result of this process is a 3D map, or “point cloud,” which the vehicle’s onboard computer can use to navigate safely through the environment.\nWhy is LiDAR important?\nLiDAR’s ability to instantly generate precise, three-dimensional representations of surroundings is crucial to delivering on the promise of self-driving cars, which is as much about the effectiveness as safety. Automated vehicles depend on this technology to operate safely and process decisions rapidly, similar to a human brain.\nElsewhere, the technology’s remote sensing capabilities contribute to helping surveyors achieve more accurate readings, boosting the productivity of farming and forestry operations via the ability to penetrate dense vegetation, and producing higher-quality digital photographs and video.\nWhat are some of the primary types of LiDAR solutions?\nTerrestrial and bathymetric LiDAR are two of the most commonly used LiDAR solutions, and each has a different purpose in environmental analysis and data gathering.\nTerrestrial LiDAR, often known as terrestrial laser scanning (TLS), uses ground-based, contact-free instruments to measure and gather point clouds. This type of instrument can be further divided into categories that include mobile LiDAR and static LiDAR systems.\nThese are the types of LiDAR scanners used in autonomous vehicles, though they can also be found in other transportation, such as boats and trains. This technology is often chosen because it can collect a greater number of data points to produce more detailed maps. One of its uses is scanning infrastructure, such as railway lines, to determine its condition and any points needing repair or attention.\nThis type of LiDAR instrument usually is mounted atop a tripod and used to focus on a specific area. It's capable of scanning in all directions, including above the instrument. These types of scanners are used not only outdoors but inside of structures too. Engineers and architects frequently use them, and it's common to see them by the roadside when projects are being carried out.\nUnlike TLS, bathymetric LiDAR is most commonly employed for use in water. While some types of LiDAR use infrared, bathymetric systems rely instead on a combination of infrared and green spectrum lasers. The green laser signals can penetrate through water, while the infrared beams gather LiDAR data on the sea floor or riverbed. As a result, bathymetric LiDAR is usually involved in coastal projects.\nWho are some of the top technology providers building LiDAR sensors and LiDAR systems?\nThere are quite a few start-ups and established tech providers working in the LiDAR space, and many are focused on enhancing the efficiency and safety of autonomous driving. Below are some of the top LiDAR technology partners currently operating in the industry.\nVelodyne Lidar focuses on the provision of solutions for transportation, robotics, infrastructure, navigation, smart cities, and more. In 2007, Velodyne’s real-time surround view systems were utilized by autonomous vehicles in the DARPA grand challenge. Decades later, the company produces a range of LiDAR solutions, including Alpha Prime, Ultra Puck, Puck Hi-Res, and more. Their LiDAR software, Vella, is a development kit that provides access to the company’s perception software features.\nWith more than 50 commercial partners, Luminar focuses on improving safety and efficiency in autonomous transportation. The company believes that this narrow focus will allow faster progress in what it sees as the most pressing use case for LiDAR tech. Recently, Nissan and Luminar partnered under the former company's long-term vision, Nissan Ambition 2030. Using LiDAR technology, the project aims to significantly reduce autonomous vehicle collisions in highly complex scenarios.\nIn early 2022, AEye was named as one of the world's most innovative companies due to its advancements in automotive and transportation, specifically around intelligent sensing. The company's history began with one man, Luis Dussan, an aerospace designer of weapons targeting systems for military jets. In 2022, AEye showcased its future vision for adaptive LiDAR in automotive vehicles. The company also demonstrated its 4Sight Intelligent Sensing Platform, designed to allow for sensor positioning across multiple mounting locations.\nOuster provides high-performance LiDAR solutions for robotics, industrial machinery, vehicles, and more. They've supplied these technologies to companies of varying sizes, from startups to Fortune 500s, including the U.S. army and NVIDIA. Ouster currently produces over 75 unique sensor configurations and has over 250 patents, either granted or pending. The company has a global presence, with offices in the US, France, and China.\nPartnering with household names that include Microsoft, Sony, and Sharp, MicroVision has also supplied LiDAR technology to the U.S. Military. The company’s technology undergoes rigorous ADAS scenarios to improve automotive safety in complex environments. In June 2022, MicroVision's technology was applied to scenarios including complex highway situations, changing lighting, tunnels, and more.\nInnoviz recently won its third design award for vehicle automation within the Volkswagen brand. Innoviz was the first LiDAR provider chosen by a major automotive company (BMW) to mass-produce level 3 to 5 automated vehicles. Additionally, the company has secured collaborative partnerships with several Tier 1 automotive supplies. In August 2022, Innoviz confirmed that its LiDAR sensors would soon be installed in all automated vehicles within Volkswagen Group brands.\nQuanergy Systems is responsible for products that include mechanical LiDAR sensors. The M Series is popular for applications in security, smart cities, and smart spaces. Located in Silicon Valley, Quanergy Systems has around a decade's worth of experience in optics, artificial intelligence, and more.\nBlickfeld primarily produces LiDAR systems for automotive, industrial, and software applications, including Cube 1, Cube Range 1, Cube 1 Outdoor, and Qb2. Their hardware can be used for applications that include volume measurement, crowd analytics, and security threat detection and alarm generation. They're also involved in the autonomous vehicle movement, and their products are often used in conjunction with drones.\nIbeo Automotive is another provider of LiDAR sensors seeking to improve safety in autonomous driving. The company developed the world's first 4D solid-state LiDAR sensor and offers two products: the ibeo LUX and ibeoNEXT Solid-State. The latter sensor can determine not only an object’s X, Y, and Z positioning but also its velocity.\nAeva was founded by two former Apple engineers. The company has produced the world's first 4D LiDAR system, using camera-level resolution in its sensor capabilities. With this product, Aeva quotes a resolution capable of delivering up to 20x the resolution offered by legacy sensors. Using this technology, it is said that autonomous vehicles should be capable of improving small hazard detection at top speeds and twice the scanning distance of older LiDAR technology.\nWhat are some of the trends disrupting LiDAR technology?\nThe expansion of LiDAR technology is growing exponentially, given its considerable advantages to automation and business improvement. There’s a potential for innovative new solutions to completely transform the way that numerous industries work at present.\nAnother area seeing rapid advancement is robotics. Industry leaders like Boston Dynamics have already made giant steps forward with agility and movement in recent years, and LiDAR technology is allowing for further innovations in the industry. With LiDAR sensors on board, robots are capable of more refined, minor movements and adjustments. For example, when pallet loading, a robot using a LiDAR sensor can dynamically adjust its grip in real-time to reduce mistakes and improve efficiency.\nLiDAR is transforming the management of safety in the workplace. This is especially notable in areas such as assembly lines, where LiDAR technology can monitor for quality and adherence to proper operating and safety procedures. This includes flagging employee behavior that could lead to personal injury. LiDAR is also capable of ensuring that adequate manufacturing processes have been followed. For example, when a component or product is not assembled correctly, and either falls short of brand expectations or could cause injury through repetitive use (automotive components).\nLiDAR technology has underpinned many space missions undertaken in the last half-century, as it has numerous benefits over traditional radar technology for remote sensing from space. NASA has even adapted LiDAR technology for use on the International Space Station. Their instrument, known as the Global Ecosystem Dynamics Investigation (GEDI), provides a detailed 3D representation of every forest on Earth. It also reveals data on the carbon cycle that has not been possible to gather before. This has allowed us to determine the number of trees that must be planted to offset the impact of deforestation and greenhouse gas emissions.\nWhat are some of the business impacts of LiDAR adoption and utilizing LiDAR data?\nLiDAR technology's extensive applications constantly transform the world and how we work. It is one of the critical building blocks of advancing automation into the future. Here are a few of the business impacts that LiDAR adoption can have on businesses and processes:\nIncreased efficiency in measurement-focused applications: LiDAR is critical to climate change monitoring and mitigation. With this technology, geologists and scientists can more accurately track and observe agriculture patterns, deforestation, and more.\nPerhaps one of the most widely used applications of LiDAR is in surveying. Compared to traditional methods of gathering data, LiDAR is vastly superior, saving on staffing and resources. Point clouds created by LiDAR technology have a minute margin of error, allowing for more informed business decisions and risk analysis.\nSmart cities technology development: LiDAR is an essential driver in the creation of connected smart cities. Applications include traffic and pedestrian monitoring, security management, urban planning, and autonomous vehicle navigation. Crucially, LiDAR technology can gather information about a city without breaching privacy concerns in the way traditional cameras might. Data can be collected at any time, even in low light conditions, which conventional cameras and data gathering methods struggle with.\nLow-tech industry transformation: LiDAR has real potential to revolutionize low-tech industries, such as construction and manufacturing. By combining traditional, operational technology with LiDAR and other connected devices, businesses can lower costs and improve revenue while mitigating risks such as data privacy. For example, the technology could:\nMonitor assembly lines for quality control and error handling;\nAutomate the operation of heavy machinery, such as agricultural vehicles;\nImprove employee safety by identifying risky behaviors;\nAvoid capturing personally identifiable information while gathering data.\nWith LiDAR, it’s clear that there is real potential to reduce wasted time and resources and improve safety and efficiency in the workplace. Businesses can benefit and improve their revenues by introducing LiDAR into existing processes while gaining greater insights into where operations can be improved.\nLooking to better understand the latest technology trends like LiDAR? Find out more about our Research as a Service and how we can help you and your organization stay at the forefront of innovation.","domain":"optical_engineering"}
{"url":"http://aliceinphysics.com/publications/alice_law_8/en/part_34_1.html","date":"2023-05-31T17:14:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646937.1/warc/CC-MAIN-20230531150014-20230531180014-00622.warc.gz","language_score":0.9312114119529724,"token_count":642,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__124294084","lang":"en","text":"34.1. LIGHT INTENSITY, DISTANCE AND (C+V) (C-V) MATHEMATICS\nIt is a well-known topic that light intensity changes depending on distance. As you move a circle from the light source, amount of light that passes through it in a unit of time decreases. The figure below shows this.\nThe general rule is as follows: Intensity of a light that a point source emits around it decreases inversely proportional to the square of the distance. We can think that in practice when we double the distance, the light intensity will decrease fourfold. There is the following equation in line with this rule.\nSince Light Intensity is a result primarily based on the number of photons that make up the light, we can write the equation above by presenting the real reason as below:\nHowever, both equations above are valid for targets that are not in motion relative to light source. When there is movement, (c+v) (c-v) mathematics steps in the situation.\nWe can see how (c+v) (c-v) mathematics interferes in the figure below. Think of an object that stands still at\nd0 distance to the light source. The fact that the object is drawn as a round shape is not important. Assume that n of the photons that are emitted at a time such as\nt0 choose this object as their arrival targets. As a result, n number of photons cover\nd0 distance in tΔ =d0/c time and reach their target objects. Now, lets think of the situation the object moves away. When the object is at\nd0 distance, n number of photons again choose the object as their arrival target and set out towards it. However, this time, the speed of the photons is (c+v) and these photons will arrive at the object at\nd1 distance instead of d0 distance and the number of photons will not change. In case the object comes to the light source, photons will reach the target, which travels at (c-v) speed, at\nd2 distance and the number of photons will, again, not change.\nThe fact that the number of photons does not change doesnt mean that the object will get the same light intensity in all these cases because energies of the photons will change although their numbers stay the same.\nThe change in the energy will be directly proportional to wavelength change.\nTherefore, we can define the equation: EX . λX = E0 . λ0. Then, an object that receives\nE0 amount of energy will receive E2= E0.c/(c+v) energy if it is in motion and if it is moving away, and it will receive\nE1= E0.c/(c-v) if it is approaching. In the figure, pay attention to the fact that\nd1 and d2 distances are determined by tΔ time. The number of photons not changing is directly related to tΔ time. The number of photons will change when the tΔ time is exceeded.","domain":"optical_engineering"}
{"url":"https://www.yuanhanequip.com/product/laser-punching-cutting-machine-yh-jgqd01.html","date":"2024-04-14T07:45:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816875.61/warc/CC-MAIN-20240414064633-20240414094633-00531.warc.gz","language_score":0.7965401411056519,"token_count":338,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__103130322","lang":"en","text":"Get a free quote for your project. Click here.\nThis webbing laser hole punching and cutting machine is equipped with two laser heads, the distance can be moved at will, and it is widely used in clothing, leather, applique embroidery and other industries.\n○ The position of the laser head can be adjusted at will, and it can also work with a single head, which is easy to operate.\n○ The latest operating software can control the power of the two laser heads respectively, so that the cutting effects of the two laser heads are exactly the same.\n○ Equipped with high-power laser and dual optical path reflection system to minimize light loss and ensure consistent cutting depth.\n○ Adopt unique intelligent prediction algorithm and improved control algorithm to ensure balanced and efficient processing.\n|300W for machine, ≥10W for laser\n|high-speed optical scanning galvanometer","domain":"optical_engineering"}
{"url":"https://thetechjournal.in/cloaking-technology-the-dream-of-invisibility-will-soon-become-a-reality/","date":"2023-12-01T06:08:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100276.12/warc/CC-MAIN-20231201053039-20231201083039-00130.warc.gz","language_score":0.9620693325996399,"token_count":648,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__148303087","lang":"en","text":"Every one of us, at some point, wished to become invisible. The science fiction and fantasy realms are filled with characters having the most coveted gift of invisibility; in real life though, there wasn’t much success in this regard. While scientists have been working for a long time to create a cloaking technology that would make people and objects truly invisible, there was nothing solid to show off until now. However, now there is a hope that soon we might have a perfect cloaking technology that will allow us to become invisible. In fact, scientists around the world are working hard on it. From chameleon-style camouflage techniques to Harry Potter style invisibility cloaks, tech companies are exploring several avenues to perfect the cloaking technology.\nAlthough we wish to have our own invisibility cloak as soon as possible, creating a true cloaking technology is not so simple in reality. The rudimentary cloaking technology that we have today is far from perfect and needs extensive research and fine-tuning before it could make an object completely invisible. In fact, there is no single approach to attaining invisibility. Scientists are working on several different options to make objects disappear. What is the most viable approach and most successful tech for invisibility will only be clear with time. However, some promising prototypes in development could make things vanish and will be available sooner than you think.\nWe see things when light reflects from them and reach our eyes. The way we see things is also the biggest hurdle for a cloaking technology to achieve invisibility truly. A perfect cloaking device should be capable of bending light around an object, that too from all directions. It’s not easy to achieve. In fact, many scientists are trying a different, more simple approach. For example, using cameras to record the background of the object and projecting it on the front.\nFrom Canada to America, several prototypes have been developed that, in one way or the other, make objects disappear.\nRecently, Polaris Solutions, an IDF supplier, has developed an ingenious camouflage technology that allows soldiers on the ground to disappear. It could even become invisible to the thermal detection system. It’s a sheet made of microfibers and polymers, which makes anyone wearing it almost impossible to spot.\nIn America, there has been advancement in cloaking technology. Scientists have created a device that makes objects truly invisible. Furthermore, the new camouflage technology even works from different angles. So, it’s impossible to spot the object even from a different vantage point.\nAnother company from Canada, HyperStealth Biotechnology, also made headlines when it unveiled its Hyperstealth’s “cloaking technology” capable of hiding weapons, objects and people altogether. It’s called quantum stealth; however, its applications are limited to military use only. It could be used to hide soldiers, weapons, and tanks.\nWhile there are still several technological hurdles, it’s only a matter of time until we will have a perfected technology that could make objects vanish. We might be far from an invisibility cloak, but recent success in this area has raised hope and confirmed the viability of the idea.","domain":"optical_engineering"}
{"url":"https://www.photographybay.com/tag/lens/page/3/","date":"2019-04-22T01:03:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578532948.2/warc/CC-MAIN-20190421235818-20190422021818-00456.warc.gz","language_score":0.9372172355651855,"token_count":594,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__188921646","lang":"en","text":"Several Zeiss lenses are available with instant rebates up to $400 off through July 31, 2018. Check them all out here at B&H Photo.\nThese Sony versions have the same optics and overall construction of these popular lenses in the Canon/Nikon mount counterparts. However, the lens barrel is extended to make up for the additional flange distance required provide a native Sony E-mount.\nNikon has announced the development of the AF-S NIKKOR 500mm f/5.6E PF ED VR lens. It is significantly smaller and lighter than comparable camera lenses due to the adoption of Phase Fresnel lens elements. The PF element first appeared in the AF-S NIKKOR 300mm f/4E PF ED VR lens (above) back in 2015.\nDetails are scarce and there are no photos released yet. Nikon says final pricing and availability info will come later this year. Check out the press release below. [Read more…]\nSeveral Nikon DX lenses are now available with instant rebates up to $200 off. Check them out below.\nNikon 12-24mm f/4G IF-ED lens for $946.95 (reg. $1146.95)\nNikon 10-24mm f/3.5-4.5G ED lens for $796.95 (reg. $896.95)\nNikon 18-300mm f/3.5-6.3G ED VR lens for $646.95 (reg. $696.95)\nNikon 50mm f/1.8G lens for $176.95 (reg. $216.95)\nNikon 40mm f/2.8G Micro 1:1 lens for $246.95 (reg. $276.95)\nNikon 35mm f/1.8G lens for $166.95 (reg. $196.95)\nSigma revealed the price of the recently announced 105mm f/1.4 DG HSM Art lens at just $1599. As with other Sigma lenses, I think this is an incredible price point for such a killer lens. I was able to play with it for a bit back at NAB last month and I think its going to be a real hit as a portrait option. [Read more…]\nSigma’s new 70mm f/2.8 DG Macro Art lens price has been unveiled at $579 and will ship in Canon and Sigma mounts at the end of May to mid-June (the Sony E mount version is coming later this year).\nThe new lens offers a full 1:1 magnification with a minimum focus distance of 10.2″. The focus-by-wire design for this lens is apparently incompatible with Nikon’s AF system, so the F mount will be sitting out this round. Check it out here at B&H Photo.","domain":"optical_engineering"}
{"url":"https://www.metroworkwear.com.au/products/magnum-safety-glasses-bifocal-smoke-lens-1-50-068-1-50sd","date":"2024-04-15T04:06:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816939.51/warc/CC-MAIN-20240415014252-20240415044252-00348.warc.gz","language_score":0.6841078996658325,"token_count":236,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__9887392","lang":"en","text":"Magnum Safety Glasses - Bifocal Smoke Lens (+1.50) 068+1.50SD\nI agree with the terms and Please allow a maximum up to 14-21 working days for deliveries. We DO NOT accept returns for WRONG SIZE OR COLOUR ordered.\nThe Magnum reading glasses are set in clear or smoke polycarbonate safety lens. This same polycarbonate material is used in many of our AS/NZS certified safety glasses.\nThe Magnum reading glasses are available in +1.50, +2.00, +2.50 and +3.00 magnifications.\n|Unit of Measure","domain":"optical_engineering"}
{"url":"https://sasquatchchronicles.com/eyeshine-from-a-doctors-point-of-view/","date":"2019-01-20T16:29:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583722261.60/warc/CC-MAIN-20190120143527-20190120165527-00093.warc.gz","language_score":0.9733168482780457,"token_count":671,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__136732489","lang":"en","text":"A listener writes “Wes, after listening to the “light” podcast I wanted to share some observations from an eye doctors point of view.\nTimothy mentioned the light was white until he shined a green laser at them and then it turned red. What I think is happening is that the creature was unaware they were there or was looking in another direction. When the laser was shined in their eyes, Timothy mentions a “f stop like camera change”. This sounds like their pupils constricting. After that point the reflex is red because I believe that NOW the creature is looking directly at them. It not that they are mad but they totally have your attention and they looking directly at them.\nHere is my theory.\nThey have a tapetum lucidium that reflects about 50% of the red spectrum of light while looking eye to eye. In most creatures with a tapetum lucidium, 40-50% of light reflection is the norm. Humans only reflect about 10% of the red spectrum to give you a comparison. The thickness of the tapetum lucidium is greatest at the center of vision where their macula is and thins as it progresses from the direct center in the back of the eye to the sides of the eye. The other thing that changes from the center to the side of the eye is the rod/ cone composition.\nCenter vision has more cones for color reception. Peripheral vision has more rods for night vision. This might explain the change in colors. It totally changes based on the angle the light enters. It might also explain their swaying side to side to better use their peripheral vision to see at night. Pilot’s and the military are trained to use their side vision at night for just such a purpose.\nMy estimate (from pictures I have been given) is their pupils are twice the size of ours. That’s a huge potential for light going in their eyes at night. If the moon is emitting .1 lux ( .1 lumen /m2) and 50% is reflected, I believe that reflection could be observable . Imagine a 13mm mirror. Don’t you think you might see a reflection of it in the moonlight? The difference from a mirror and their eyes is their eyes collect light from multiple directions when their pupils are large at night. They eye is bowl shaped unlike a mirror. So I believe ambient moonlight might appear to glow. Timothy said the lights appeared like the brightness of a Christmas tree light(led) which on average emit approximately only 0.4 to 4.0 lumens. Compare this with a candle that emits 12.57 lumens. I entirely believe that is possible to see this from 200 yards of a candle can be detected for miles.\nI am working on a model that might demonstrate this. I need your help. I need some good eyeshine, glow, or close up daytime eye pictures to totally work this out. Any help would be appreciated. You can thank Gumshoe for his help so far.\nI had an eyeshine experience at age 13 myself from about 12 feet and that is why I am trying to figure this out. And yes, I wish I had never seen it….\nThanks for being there for us”","domain":"optical_engineering"}
{"url":"http://techsurface.com/2012/02/nikon-d800-36-3-megapixel-multimedia-hd-slr-camera-announced.html","date":"2024-04-22T06:46:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00242.warc.gz","language_score":0.877404510974884,"token_count":476,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__70052685","lang":"en","text":"Worlds one of the imaging leader Nikon Inc. launched 36.3 Megapixel, Multimedia High Definition – SLR camera today The Nikon D800.\nThe Nikon D800 engineered for professional multimedia photographers and videographers, possesses 36.3 Million effective pixel camera of 7360 x 4912 resolution with the new EXPEED 3 image processing engine. The new Expeed 3 Image processing technology will produce more faithful colours and tones at breakthrough speed by reducing colour phase shifts seen with lesser system.\nIn addition to that, Nikon D800 features latest 91,000-pixel 3D Colour Matrix Metering III and the Advanced Scene Recognition System, coupled with an improved 51-point AF system for images with amazing sharpness, colour and clarity.\nFor Filmmakers and Photographers Nikon D800 supports Full HD 1080p recording at 30/25/24p or 720p at 60/50p in AVC format, full manual control, uncompressed HDMI output, and incredible low-light video capability. You can also attach headphones and monitors audio input peak displayed on camera screen, Microphone sensitivity can be adjusted in up to 20 steps. While recording perfect scene for your movie, you can simultaneously Live output on external monitor too.\n- Standard ISO 100-6400, expandable to ISO 50-25,600 equivalent\n- Compatible with third party video accessories\n- Continuous shooting at up to 4 fps at full FX-format resolution\n- Rugged magnesium alloy construction\n- High speed CF and SD dual memory card slots\n- Two axis Virtual Horizon graphic indicator\n- Rechargeable EN-EL15 Battery\n- Dual Image-Area Full HD D-Movie – Recording Movies Using One Of Two Formats\n- High-Speed Continuous ShootingA 51-point AF system for improved subject acquisition and focus under dim lighting.\n- A 3.2-inch, approximately 921k-dot LCD monitor with reinforced glass, automatic monitor brightness control and wide viewing angle\n- Virtual horizon that shows the degree to which the camera is tilted\n- Support for SuperSpeed USB (USB 3.0)\nNikon D800 Suggested Retail Price is $2,999.95. Actual prices are set by dealers and are subject to change at any time. The D800E version will be available in mid April 2012.","domain":"optical_engineering"}
{"url":"http://aspelmeyer.quantum.at/details/news/cavity-cooling-of-levitated-nanoparticles/","date":"2017-04-25T02:44:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120092.26/warc/CC-MAIN-20170423031200-00077-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.708556592464447,"token_count":178,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__167484282","lang":"en","text":"The coupling of a levitated massive particle and an optical cavity field promises access to a unique parameter regime both for macroscopic quantum experiments and for high-precision force sensing. We report a demonstration of such controlled interactions by cavity cooling the center-of-mass motion of an optically trapped submicron particle. This paves the way for a light–matter interface that can enable room-temperature quantum experiments with mesoscopic mechanical systems.\nCavity cooling of an optically levitated submicron particle\nNikolai Kiesel, Florian Blaser, Uroš Delić, David Grass, Rainer Kaltenbaek, and Markus Aspelmeyer\nProceedings of the National Academy of Sciences (PNAS) USA, Published online before print August 12, 2013, doi: 10.1073/pnas.1309167110","domain":"optical_engineering"}
{"url":"https://www.colorsentinelsystems.com/","date":"2023-12-06T08:56:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00452.warc.gz","language_score":0.8701906800270081,"token_count":206,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__290259490","lang":"en","text":"Ensuring Perfect Color Every Time\nThe Color Sentinel Systems In-Line Modeling Spectrophotometer (ILMS) is highly accurate, performing color measurements in line with the paper path at speeds up to 2 meters per second. These measurements are internally analyzed in real-time, providing color correction data to a variety of existing printer color management systems such as Fiery® and FreeFlow™. Printing device outputs can then be automatically corrected, assuring real color reproduction every time. This also eliminates the need for expensive, time-consuming, manual external spectrophotometer measurements. Our Wave Stable™ technology requires no instrument calibration over the life of the device, eliminating down time to recalibrate while delivering unprecedented stability, accuracy and repeatability.\nInline and Portable Modeling Spectrophotometers\nIn addition to the In-Line Modeling Spectrophotometer, Color Sentinel Systems also offers a hand-held version that uses the same patented technology, ensuring in-line and manual color measurements are always correlated.","domain":"optical_engineering"}
{"url":"https://pxsinc.com/product/varex-xrd-4343n/","date":"2023-09-22T15:34:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506420.84/warc/CC-MAIN-20230922134342-20230922164342-00558.warc.gz","language_score":0.8331725597381592,"token_count":344,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__145303013","lang":"en","text":"Varex Imaging’s XRD 4343N is a high speed, large area amorphous silicon (a-Si) Flat Panel X-ray detector for high dose industrial applications.\nThe XRD 4343N supports a full 43 x 43 cm2 (17 x 17 in2) field of view, is available with several scintillator options and is shielded for high-dose non-destructive testing – including inline Cone Beam Computed Tomography (CBCT) – using energies up to 450 kV. This detector has a 150 μm native pixel pitch and operates at 15 fps at full resolution and full field of view; it also supports 7 different fields of view and 4 binning modes with frame rates up to 115 fps.\nRapid system integration is accomplished with integrated trigger and X-ray synchronization circuitry, a frame grabber providing real-time image-processing and a comprehensive software library for image acquisition and processing.\nFeatures and benefits for the XRD 4343N flat panel detector include:\n• 15 fps @ 150 µm, 30 fps @ 300 µm (full FOV)\n• 115 fps @ 600 µm (432 mm x 72 mm FOV)\n• 150 µm pixel pitch, 2880 x 2880 pixel matrix\n• 4 binning and 7 FOV options\n• 65,536 grey levels (16-bit ADC)\n• Ultra high sensitivity\n• Selectable gain settings\n• Up to 450 kV\n• Shielded from the effects of MV radiation scatter (Radiotherapy)\n• Fiber optical interface\n• Real time corrections","domain":"optical_engineering"}
{"url":"https://huntingmaestro.com/best-crossbow-scope/","date":"2023-12-07T16:46:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100677.45/warc/CC-MAIN-20231207153748-20231207183748-00393.warc.gz","language_score":0.9432991147041321,"token_count":2959,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__257085303","lang":"en","text":"If you’re serious about hunting with a crossbow, you know that having a reliable and accurate scope is essential. A high-quality crossbow scope can make all the difference when hitting your target with precision and ease.\nTraditional iron sights can be limiting, especially in low-light conditions or at longer ranges. A good scope is a must-have for any serious hunter or target shooter. Without a proper scope, you may struggle to hit your target consistently, leading to wasted time, money, and frustration.\nIn this article, we’ll highlight some of the best crossbow scopes available on the market, providing you with the information you need to choose the right one for your needs.\nVortex Crossfire II Crossbow Scope\nVortex has a reputation for producing top-quality optics, and the Vortex Crossfire II lives up to this reputation. This scope offers excellent performance and value for the price, making it a popular choice among crossbow hunters and shooters.\nThe 2-7×32 scope has a standard 30mm tube size and offers dual red/green illumination, making it versatile in various lighting conditions. The aiming points on the reticle stretch out to 100 yards, and the scope is zeroed at 40 yards. Thus it provides spot-on holdovers for long-range shots.\nThe Vortex Crossfire II scope is also built to last, with tight tolerances and excellent build quality. The scope feels solid and durable in your hand, and the lifetime no-questions-asked warranty ensures that you can rely on it for years to come. The scope is also lightweight, weighing only 14 ounces, making it easy to carry on long hunting trips.\nRavin 450 Illuminated Scope\nFor hunters who want to upgrade their crossbows without breaking the bank, the Ravin 450 scope is an excellent option. This scope features a clear reticle with aiming points from 20 to 100 yards, making it versatile for different shooting situations.\nThe build quality of the scope is top-notch, as you would expect from Ravin, and it offers bright and clear optics. One of the standout features of the Ravin 450 scope is its ability to compensate for speeds up to 450 fps.\nThis makes it a great choice for hunters who may upgrade their crossbows in the future, as the scope can grow with them. The scope also offers the choice of red or green illumination, with adjustable levels of illumination for low-light conditions.\nWhile the Ravin 450 scope may be a bit pricey for some hunters on a budget, it is an investment in quality equipment that can significantly improve accuracy and performance.\nGarmin Xero X1i Crossbow Scope\nThe Garmin Xero X1i is an innovative and one of the best crossbow scopes that functions as both a scope and a laser rangefinder. It features an easy-to-use rangefinder button that can be mounted anywhere on your crossbow, allowing for quick and accurate range measurement without having to take your hands off the crossbow.\nOnce the target is ranged, the scope automatically adjusts the aiming point based on the range and your crossbow’s speed and specifications. The illumination also adjusts automatically based on the available light, making it easy to use in any condition.\nThe high-quality scope has a clear and bright display and precise aiming points. It is also durable and has reliable build quality, as you would expect from Garmin.\nWhile the price point is definitely at the high end of the market, the dual-purpose functionality of the Xero X1i is truly unique. It can make a significant difference in your hunting experience.\nTruGlo 4×32 Compact Scope\nThe 4×32 Compact from TruGlo is a budget-friendly option for those seeking a reliable crossbow scope. Despite its lower price tag, it offers solid performance with a BDC reticle that makes shooting at longer distances easier with well-marked holdovers.\nThe illuminated model features red or green options, and it uses a standard CR2032 battery, making it easy to replace. One of the drawbacks of the TruGlo 4×32 is its build quality. It is not as durable as some of the higher-end scopes on this list, which may be a concern for those who frequently use their crossbows in harsher conditions.\nThe optics are also less high-quality than more expensive models, which may result in a slightly dimmer image. It is not designed for long-range shooting, with optimal performance at distances of 50 yards or less.\nEVO-X Marksman Elite Scope\nThe EVO-X Marksman Elite is a top-of-the-line scope from TenPoint’s EVO-X line. One of its standout features is its ability to offer variable speed and arrow-drop compensation, which ensures reliable accuracy regardless of your crossbow’s speed or the weight of your hunting arrow. This makes it a great choice for long-range shooting.\nIn addition, the reticle setup of the Marksman Elite is user-friendly and easy to understand. The scope includes crosshairs for the common distances of 20, 40, and 60 yards, illuminated dots at 30 and 50 yards, and non-illuminated chevrons at 70, 80, 90, and 100 yards. This makes it easy to aim accurately at any range.\nThe external micro-adjustable turrets make it easy to adjust the scope’s settings on the fly, ensuring quick and efficient adjustments when needed. This feature is especially useful for hunters who need to adjust their scope quickly in the field.\nCVLIFE 4×32 Compact Crossbow Scope\nThe CVLIFE 4×32 Compact Crossbow Scope is a solid choice. It may not have all the bells and whistles of more expensive scopes, but it gets the job done at a fraction of the cost.\nDespite its low price point, the CVLIFE scope is surprisingly durable. It’s both fog proof and waterproof and shockproof enough to handle minor bumps and jolts. This means that it holds its zero well, saving you the hassle of constantly re-zeroing your scope.\nThe built-in Weaver mounts make it easy to attach the scope to most crossbows without requiring any extra parts or adapters. However, the short eye relief may be uncomfortable, especially if your crossbow has a lot of kick. Additionally, the clarity of it can suffer beyond 50 yards, making it less ideal for long-distance shooting.\nHawke Sport Optics 12221 Crossbow Scope\nThe Hawke Sport Optics 12221 is a premium option that delivers exceptional performance in a variety of weather and lighting conditions. Its nitrogen-purged weatherproofing ensures that it is protected from rain, fog, and dust, allowing you to take it out in any weather without worry.\nThe etched glass reticle features aiming points every 10 yards out to 100 yards, while the 11-layer multicoated optics provide excellent optical clarity in any lighting situation. This scope even offers excellent low-light performance, making it ideal for shooting at dawn or dusk.\nAnother advantage of the Hawke Sport Optics 12221 is its versatility. It offers four or eight-inch bracketing, making it easy to mount on various crossbows. It is relatively lightweight at just under 13 ounces, making it easy to handle and maneuver.\nOn the downside, the Hawke Sport Optics 12221 is more expensive than many of the other scopes on the market. However, its superior performance and versatility make it a worthwhile investment for serious crossbow hunters and shooters.\nUTG 4X32 1″ Crossbow Scope\nThe UTG 4×32 is a lightweight option that won’t add too much weight to your setup, weighing in at just 12 ounces. However, it’s worth noting that it has a rather large profile, which might make it unsuitable for some crossbows with limited space.\nDesigned to be calibrated for crossbows shooting at 300 feet per second, this scope features five aiming marks for distances up to 50 yards, allowing you to easily adjust your aim at different ranges.\nAdditionally, the quick-detach ring mounts make it easy to attach to any crossbow with Picatinny or dovetail mounts, which means that you can easily swap it between weapons. However, you’ll have to zero it again with each weapon, which could be time-consuming.\nOne unique feature of this scope is the illuminated reticle, which makes it easier to aim in low-light conditions. However, this feature requires two CR2 batteries, which might be difficult to find. Unfortunately, even on the lowest setting, the illumination is too bright for shooting in low-light conditions, making it more suitable only for day shooting.\nAdditionally, when the reticle is illuminated, the background is washed out, which could make it\ndifficult to see the target clearly.\nAim Sports 4X32 Compact Rangfinder Scope\nThe Aim Sports compact rangfinder scope is an excellent choice for those who want a lightweight and affordable option. It weighs less than 11 ounces and comes with mounting rings, so it’s easy to set up and use. Additionally, once it’s zeroed in, it holds zero well and doesn’t require further adjustments.\nHowever, the image clarity isn’t the best, and the edges of the image can be blurry, even when the scope is in focus. The reticles are also thick, making it difficult to achieve high accuracy at any distance beyond 50 yards. Additionally, the eye relief is quite short, and the field of view is narrow compared to other scopes.\nDespite these drawbacks, the Aim Sports compact rangefinder scope is still a solid option for those on a tight budget. You may need to make some compromises in terms of image quality and accuracy, but it’s a good entry-level scope that won’t break the bank.\nMA3TY 1.5-5×32 Crossbow Scope\nThe MA3TY is an expensive option that doesn’t quite measure up to its cost. Despite being marketed as a zoom scope, it is actually a fixed magnification scope that only changes based on the speed setting. While it’s adjustable for speeds ranging from 300-425 fps, you are stuck with the magnification at that speed.\nOn the positive side, this scope is nitrogen-purged to make it weatherproof and impact-resistant, ensuring that it can withstand various outdoor conditions. However, the included 12-month warranty doesn’t offer as much protection as the lifetime warranty that comes with other models.\nThis scope features aiming points up to 100 yards and offers both red and green illumination, but even the lowest illumination setting is too bright for low-light shooting.\nTRUGLO Red-Dot Crossbow Scope\nThe TRUGLO Red-dot is an ultralight and compact option that is ideal for crossbow hunting in states that don’t allow magnification. The Weaver-style mounting system makes it easy to attach to any crossbow, and the optics are designed for all-weather use. Plus, there is a limited lifetime warranty to protect your investment.\nHowever, there are some downsides to this scope. The lens caps can be difficult to flip up, and they tend to pop off entirely. Additionally, the short length of the scope can create parallax issues that make it challenging to shoot accurately.\nKiller Instinct LUMIX SPEEDRING Scope\nThe Killer Instinct LUMIX SPEEDRING scope is an adjustable scope that claims to offer durability, waterproofing, and shockproofing features. However, our experience with this scope was not positive.\nAlthough the metal chassis seemed sturdy at first, the lens became loose after just a few shooting sessions, making the scope unusable. This was a major disappointment, especially considering the high price tag compared to other options on the market.\nOne positive feature of this scope is the flip-up lens covers, which are always attached and ensure they are not lost. Additionally, there are multiple aiming reticles for accurate shooting from various distances, but they don’t align in a logical manner, such as in 10 or five-yard increments.\nOn the downside, this scope doesn’t live up to its claims of being shockproof, which is a significant drawback for hunters who need a scope that can handle the rigors of the field.\nThe Qualities Of A Good Crossbow Scope\nBefore buying a crossbow scope, make sure you look for these qualities. If the crossbow passes these checks, it surely is worth buying a scope.\nThe amount of magnification you need depends on your hunting or shooting needs. If you are shooting at longer distances, a higher magnification may be necessary, but if you are hunting in close quarters, a lower magnification may be more appropriate.\nObjective Lens Size:\nThe size of the objective lens determines the amount of light that enters the scope, which affects image brightness and clarity. A larger objective lens allows for more light and better image quality but can also add weight and cost to the scope.\nThe reticle is the crosshair or aiming point that you see when looking through the scope. Some scopes offer multiple reticles to choose from, while others have a fixed reticle. It’s important to choose a reticle that suits your shooting needs and preferences.\nA crossbow scope should be able to withstand the recoil and shock of a crossbow’s powerful shot. Look for a scope made with durable materials and features such as shockproof and waterproof capabilities.\nMake sure the crossbow scope you choose has a mounting system that is compatible with your crossbow. Most scopes use either a Weaver or Picatinny rail system.\nThese can range in price from relatively inexpensive to very expensive. Consider your budget and the features you need before making a purchase.\nSummary of Best Crossbow Scopes:\nWe hope that one of the above-mentioned scopes will cover your needs. We tried our best to be as inclusive about the details as possible. Each scope has its own pros and cons; in the end, it all depends on your individual needs. Your shooting environment is also an important determining factor. Please ensure to be specific about your requirements before buying a crossbow scope.","domain":"optical_engineering"}
{"url":"https://identisys4.wordpress.com/2013/10/07/laser-engraving-and-laser-etching-being-highly-used-for-various-purposes/","date":"2017-04-23T17:39:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118740.31/warc/CC-MAIN-20170423031158-00362-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9577120542526245,"token_count":593,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__300697206","lang":"en","text":"When talking about the process of laser engraving, you will find that laser engraving supplies will be the most crucial things that should be considered. You will find that using laser for the process of engraving will make the process simpler than ever before. This is because laser can very well engrave almost everything easily.\nSome of the various materials that can be pretty well engraved with laser are the coated metals, wood, acrylic, glass, leather, marble, plastic, and a host of the other synthetic materials. This particularly means that the laser can be very well used for the various engraving procedures for several types of the material that will give you the easiness for the engravers to do the job.\nMoreover, you will find that Laser Engraving has been very much existed since in the early sixties. Another name of this particular process is laser etching. For this particular process, you will need no masks or chemicals unlike the conventional etching. You will find that the process will be really simpler and easy using the laser. If you look at the overall history, the laser engraving very well supplies were first used in around the 1960’s. This was not long after the scientists worked out how to very well create a powerful enough laser source that they could quickly and very easily use to imprint the markings on all kinds of the materials. At that time, the laser was expected to be able to engrave at the least diamonds and types of metals.\nToday, the process of the laser engraving can be very well used for most of the jobs that are very currently being carried out by the conventional industrial engravers. The Laser machines and the systems that are used in a variety of the applications and industries including the medical device industry, aerospace, manufacturing, automotive, pharmaceutical, and the electronic industry.\nInstead of those things, you will find that the laser engraving is also usually used to create a real permanent mark on a valuable item. In this particular matter, the item can either be a necklace or a bracelet. The laser engraving process will make the item looks completely unique. This will also add the sentimental value of the item in a major way. You will find that the process of laser engraving is quite popular today and finds a wide number of the applications which reveals its usefulness and popularity in a major way.\nThe process of marking of the glass by the carbon dioxide lasers is one of engraving jobs that you can find today very easily and conveniently in various industries. You will find that this can be really an excellent addition for the industrial environments and the applications for the glass marking. When the laser engraving process is very well implemented to this particular process, the laser engraving will particularly change the traditional methods that include sand blasting, ink pad printing, and etching.\nFor further detail about Laser Etching please visit the website.","domain":"optical_engineering"}
{"url":"https://gohalalshopper.com/product/canon-eos-r7-mirrorless-camera-with-18-150mm-lens/","date":"2024-04-16T07:58:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817073.16/warc/CC-MAIN-20240416062523-20240416092523-00447.warc.gz","language_score":0.836357831954956,"token_count":243,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__87456404","lang":"en","text":"- 32.5MP APS-C CMOS Sensor and DIGIC X Processing 2.36m-Dot EVF and Vari-Angle Touchscreen LCD\n- DIGIC X Processor Reliable and Intuitive Construction\n- UHD 4K Video Recording Flexible Connectivity\n- Autofocus and Image Stabilization Dual Pixel CMOS AF II Next-Generation Multi-Function Shoe\n- Sensor-Shift Image Stabilizer RF-S 18-150mm f/3.5-6.3 IS STM Lens.<br><br>\nOverviewThe EOS R7 represents Canon’s move into APS-C with the mirrorless R system. Featuring a 32.5MP CMOS sensor and DIGIC X processing, this sleek powerhouse is capable of high-speed 30 fps shooting for sports and wildlife and features the renowned Dual Pixel CMOS AF II focusing system to keep up with and track fast-moving subjects. And, for the multimedia image-makers, 4K video is supported at up to 60p, or 30p when oversampled from a 7K area, as well as Full HD at up to 120 fps.","domain":"optical_engineering"}
{"url":"https://www.cnc-laser.cz/en/marking-laser.html","date":"2023-10-01T22:46:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510941.58/warc/CC-MAIN-20231001205332-20231001235332-00575.warc.gz","language_score":0.9106690883636475,"token_count":547,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__158479697","lang":"en","text":"Marking lasers GWEIKE LF50\nWe present the marking fiber laser GWEIKE LF50, which is suitable for marking and labeling all metal materials. The laser works with modern FIBER technology. The 50 W source is powerful enough for fast and accurate industrial marking. It is a complete CNC laser station where laser marking is easy and very effective. The price of marking laser is affordable and these models are in demand in various industries. The working area is large enough and the laser marking is productive.\nTechnical parameters of the marking laser LF50\nThe price of the laser marker is EUR 8,800 without VAT\nThe high-quality Raycus laser source generates a maximum of 50 W. The speed of laser marking depends on the intensity and complexity. The maximum description speed is set at 1000 mm per second. The marking laser software is easy to use and the digital control monitors optimal performance according to the program. Any graphics are easily inserted into the laser marker system. Laser labeling can do any shape and different shades.\nWhat materials can be described?\nThe description looks best on metal materials such as stainless steel, classic steel (hardened and unhardened), aluminum (also anodized) and its alloys, cast iron, gold, silver or tin and titanium. The described surfaces can have different finishes such as sanded, painted, sandblasted, enamelled, galvanized and others. You can also laser mark plastics, stone or leather. The surface of the laser-marked material does not even have to be flat. The fiber laser also handles hard-to-reach places. Laser marking takes place from the top and it is possible to add a rotation axis.\nMarking fiber lasers are a suitable aid for industrial marking and can be implemented in production lines as one of the technologies. QR codes, EANs, logos or labels are often marked with these CNC machines. They are also used in advertising items. The extension of the rotation axis brings additional possibilities for labeling with laser technology. At the same time, thanks to the open work surface, even long parts can be marked with a laser marker.\nAdvantages of marking laser\n- Low operating costs\n- High speed marking laser\n- Flexibility of settings and possibilities of industrial marking\n- Permanent description\n- Maintenance-free design\nIf you are interested in our offer or need more information, we recommend arranging a personal inspection of the machine. We will show you the marking options and describe the software and the entire operation of this CNC labeling station. We can also test directly on your material according to your documents. We are your partner in laser industrial marking and cutting.","domain":"optical_engineering"}
{"url":"https://www.networx3drones.co.uk/news/11/7/Networx3-Drones-reveals-new-tech","date":"2020-10-26T12:39:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107891228.40/warc/CC-MAIN-20201026115814-20201026145814-00189.warc.gz","language_score":0.8955629467964172,"token_count":308,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__153952379","lang":"en","text":"Networx3 Drones has unveiled its latest bit of hi-tech drone kit – a state-of-the-art thermal imaging camera.\nThe FLIR Vue TZ20 is the industry-standard thermal imaging camera for the emergency services and search and rescue worldwide.\nNetworx3 Drones will be deploying it for clients using the DJI Matrice 210 for a wide variety of work including drone surveys and inspections and drone powerline inspections.\nManaging director Ian Ashworth said: “This allows us to do, and see, so much more with our drones. This new camera picks up anything that gives off a heat signature so that could be bats in trees, lost heat from buildings, smouldering fires in scrapyards or recycling centres or overheated power cables.”\nThe FLIR Vue TZ20 offers 20-times digital thermal zoom capability to complete public safety and industrial inspection missions both near and far.\nAs well as operating well in poor weather it offers thermal video streaming, video recording, and still-image capture.\nThe £7,125 FLIR Vue TZ20 is part of a £100,000-plus investment in Networx3 Drones over the last 18 months.\nAs part of a major expansion Networx3 Drones now has five qualified commercial drone pilots and a £45,000 drone control vehicle which is home to its hi-tech drones, mapping software and a two-person operations hub.","domain":"optical_engineering"}
{"url":"https://blog.weberknapp.com/cnc-fiber-laser-cutting-machines-considerations-for-manufacturing","date":"2023-12-04T08:47:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100527.35/warc/CC-MAIN-20231204083733-20231204113733-00161.warc.gz","language_score":0.9177711606025696,"token_count":698,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__91974981","lang":"en","text":"Using laser cutting machines to produce detailed metal parts has been a common practice since the early 1970s. In today’s manufacturing scene, laser cutters are used extensively because now we can give the machines CAD design features and crank out the finished product in minutes.\nHowever, not all laser cutting machines are created equal. The most common types of lasers are CO2 lasers or microjet lasers, but fiber lasers are becoming more popular.\nBut why are CNC fiber laser cutting machines better than conventional lasers? Here are some considerations on how fiber lasers can improve manufacturing and metal part production.\nWhy Use a CNC Fiber Laser Cutting Machine?\nA fiber laser cutter offers more versatility and ease-of-use than other laser cutting machines, so it’s ideal for many machining purposes.\nSome of the benefits of a fiber laser cutting machine include:\n- The ability to cut reflective material\n- A spot size 100x smaller than that of a CO2 laser\n- Extremely focused and flexible\n- Cleaner edges and faster cutting speeds\n- Easier to use for producing detailed cuttings\nBut how does a fiber laser cutting machine work, you ask? How different is it from a CO2 laser or a microjet laser cutter?\nHow a Fiber Laser Cutting Machine Works\nA fiber laser operates a bit differently than other lasers used in metal cutting, but it also offers more precision and a higher-quality finished product.\nA CO2 laser utilizes a beam passed through a gas mixture or manipulated by radio frequency energy. Power source, gas flow, and erosion are all common issues that affect the efficiency of a CO2 laser. Microjet lasers have similar problems, but instead of a gas mixture, they use a condensed stream of water to guide the laser.\nThe glass fiber transfers the light energy to the lenses where it is focused. This replaces the mirrors used in a CO2 laser. The distance between mirrors changes as the laser cutting head moves. This causes variation in cut quality depending on the laser cutting head location. Also, the mirrors can become misaligned or dirty. resulting in poor cut quality.\nThese issues don't exist on a fiber laser. Instead of using a gas or water, the fiber laser uses a solid gain medium, which eliminates the problem of gas flow and erosion.\nWhat CNC Fiber Laser Cutting Can Do for You\nIf you’re looking for a way to cut a complex design, chances are you want to use CNC fiber laser cutters. Using a laser cutter allows you to craft quality metal products out of a variety of materials, as seen below.\nOutsourcing CNC Laser Cutting Services\nCNC technology continues to evolve, and metal manufacturers have to constantly evaluate new machines to keep up. For example, at Weber Knapp, we have two CNC laser cutting machines:\n- Prima LGf 4kW - fiber laser CNC cutting machine\n- Prima Laser Platino - CO2 laser CNC machine\nOutsourcing your CNC cutting needs allows you to decrease overhead and expensive equipment purchases while also getting a battle-tested engineering team.\nDepending on the manufacturer, you may be able to bundle several machining capabilities include a single-source solution, including:\nIf you have any questions whether CNC machining services are right for you, check out our ask-an-engineer feature. Our engineers are always happy to help!","domain":"optical_engineering"}
{"url":"https://www.duerrdental.com/en/products/imaging/intraoral-diagnostics/vistascan-mini-plus/","date":"2024-04-12T18:20:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816045.47/warc/CC-MAIN-20240412163227-20240412193227-00299.warc.gz","language_score":0.8597612380981445,"token_count":443,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166043821","lang":"en","text":"VistaScan Mini Plus – compact without compromise\nMarket-leading image plate technology from DÜRR DENTAL\nVistaScan Mini Plus considerably simplifies imaging in surgeries – simply switch it on and start scanning. Proven technology and outstanding image quality make DÜRR DENTAL image plate scanners stand out from the competition.\nNo compromises in terms of image quality\nThanks to PCS technology, the VistaScan Mini Plus can reliably depict carious D1 lesions and endo instruments up to ISO 06. It features an effective resolution of up to 22 LP/mm (40 LP/mm, theoretical) and 16-bit (65,536) greyscales.\nNo compromises in terms of flexibility\nAll intraoral image plates – from size 0 to 4 – can be used with the VistaScan Mini Plus. In addition, 100% of the active surface area is available. Simple handling – just like analogue X-ray film.\nNo compromises in terms of simplicity\nParticularly easy handling – import, erase and prepare for the next image acquisition in a single step. Fast image availability from six seconds in the direct vicinity of the patient.\nNo compromises in terms of equipment\nThe display shows the key patient data and information for the scanning process at a glance, including the energy-saving standby function.\nIntegration without compromise\nThe VistaScan Mini can be operated with DBSWIN or third-party software using plug-ins or a TWAIN driver. It can be smoothly and easily integrated in your surgery workflow via USB or via the surgery network.\nWe rely on the very highest image quality\nIdeal chairside device\nSuitable for all intraoral formats\nThe device can be smoothly and easily integrated in your surgery workflow via USB or via the surgery network.\nHighest image quality\nA new standard for image plate scanners\nImage plate technology\nImage plate – the medium for all formats\nThrough the development of the VistaScan , the advantages of image plate technology – such as exposure latitude, high grey scale range, high resolution and reduced radiation dose – are fully exploited, making this technology even more attractive in comparison with other sensor technologies.","domain":"optical_engineering"}
{"url":"https://totalfood2017.com/qa/what-is-the-most-powerful-telescope-for-home-use.html","date":"2020-10-29T19:37:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107905777.48/warc/CC-MAIN-20201029184716-20201029214716-00207.warc.gz","language_score":0.8711986541748047,"token_count":1033,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__54035628","lang":"en","text":"- What should I look for when buying a telescope?\n- What size telescope should I buy?\n- What is the most powerful home telescope?\n- How much is a powerful telescope?\n- What Telescope is best for viewing galaxies?\n- Can you see galaxies with a home telescope?\n- Can you see the rings of Saturn with a telescope?\n- How can I make my telescope stronger?\n- What is the best telescope to buy for home use?\n- What is the biggest telescope you can buy?\n- What size telescope do I need to see the rings of Saturn?\n- What magnification do you need to see Jupiter?\nWhat should I look for when buying a telescope?\nSky & Telescope listed seven important qualities for choosing a telescope: “(1) eyepiece shows a sharp image from edge to edge; (2) smooth focuser with ‘precise’ feel; (3) mount moves smoothly on both axes; (4) mount is sturdy and stable; (5) tube stops shaking quickly after being touched; (6) eyepiece is at a ….\nWhat size telescope should I buy?\nAs a rule of thumb, your telescope should have at least 2.8 inches (70 mm) aperture — and preferably more. … A larger aperture lets you see fainter objects and finer detail than a smaller one can. But a good small scope can still show you plenty — especially if you live far from city lights.\nWhat is the most powerful home telescope?\nCelestron – NexStar 8SE Telescope – Computerized Telescope for Beginners. This Celestron NexStar 8SE is the Big One — it has the biggest aperture among the telescopes reviewed here as well as being the most capable and most expensive.\nHow much is a powerful telescope?\nA good telescope may fall in the range of $200 to over $1000, but if you are an amateur astronomer, then you can stay away from the pricier options. If you are willing to spend more than $400, then you will get telescopes with higher capabilities.\nWhat Telescope is best for viewing galaxies?\nThe 10 Best Telescopes Comparison ChartProduct NameRankingMeade Instruments- Polaris 90mm Aperture Astronomy Telescope1 4.40Sky-Watcher Classic Dobsonian Telescope2 4.20Celestron- NexStar 127SLT Telescope3 4.20Orion SpaceProb 130 EQ Reflector Telescope4 4.206 more rows\nCan you see galaxies with a home telescope?\nIf you want to observe galaxies — and I mean really get something out of the time you put in at the eyepiece — you have to use a telescope with an aperture of 8 inches or more. Bode’s Galaxy (M81) glows brightly enough to show up through binoculars, but the larger the telescope you can point at it, the better.\nCan you see the rings of Saturn with a telescope?\nThe rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the planet.\nHow can I make my telescope stronger?\nThings You’ll NeedCardboard telescoping mailing tube with a diameter of 50 mm and a length of 1,100 mm.Concave-convex lens (the objective lens) with a diameter of 49 mm and a focal length of 1,350 mm.Plano-concave lens (the eyepiece) with a diameter of 49 mm and a focal length of 152 mm.Coping saw.Box cutter.More items…\nWhat is the best telescope to buy for home use?\nThe best telescopes to buy nowCelestron 22203 AstroFi 130 Wireless Reflecting Telescope. … Orion StarBlast II 4.5 EQ Reflector Telescope. … Svbony SV25 Refractor Telescope. … Celestron 11069 Nexstar 8SE Telescope. … Celestron 21036 Powerseeker 70AZ Telescope. … Meade LX90-ACF. … Celestron Travelscope 70.More items…•\nWhat is the biggest telescope you can buy?\nOrion 50″ Monster Dobsonian Telescope | Orion Telescopes.\nWhat size telescope do I need to see the rings of Saturn?\nViewing Saturn’s Rings The rings of Saturn should be visible in even the smallest telescope at 25x. A good 3-inch scope at 50x can show them as a separate structure detached on all sides from the ball of the planet.\nWhat magnification do you need to see Jupiter?\nGenerally a magnification of 30-50x the aperture of your telescope (in inches) works well on nights of average seeing. So if you have a 4-inch telescope, try 120x to 200x. If you have razor sharp optics and steady sky, you can get away with even more magnification.","domain":"optical_engineering"}
{"url":"https://www.quantummatter.co.uk/Items/Theory-of-Quantum-Light-Sources%3A-how-can-we-make-coherent-single-photons-in-solid-state-systems%3F","date":"2022-05-28T17:26:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663016949.77/warc/CC-MAIN-20220528154416-20220528184416-00628.warc.gz","language_score":0.847124457359314,"token_count":390,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__140017221","lang":"en","text":"Theory of Quantum Light Sources: how can we make coherent single photons in solid state systems?\nSupervisor: Dr Brendon Lovett (St Andrews)\nThe generation of indistinguishable single photons on demand is a key requirement for many kinds of future quantum technologies, such as secure communication and optical quantum computing . Being able to make coherent quantum light sources in solid state systems would enable us to create on-chip photonic circuits that would enable this technology. It is therefore of the utmost importance to understand what effect a solid state environment has on the fidelity of emitted photons. In this project, you will exploit and developing a groundbreaking new technique our group has created for simulating open quantum systems . Based on a combination of Feynman's path integrals [3,4] and matrix product states , it has already enabled calculations impossible by more traditional means. You will study how the technique might be used to calculate the photon correlation functions that characterise a single photon source, in the presence of a strongly-coupled environment of vibrational modes of the crystal. You will go on to study how a photonic cavity might be used to improve the performance of such a device.  I. Aharonovich. D. Englund and Milos Toth, Nature Photonics 10 631 (2016)  A. Strathearn, P. Kirton, D. Kilda, J. Keeling, and B. W. Lovett. , Nature Communications 9 3322 (2018)  R. P. Feynman, and F. L. Vernon, Jr., Ann. Phys. 24 118 (1963)  N. Makri and D. E. Makarov. The Journal of Chemical Physics J. Chem. Phys. 102 4600 (1995)  R. Orús, Annals of Physics 349 117 (2014)","domain":"optical_engineering"}
{"url":"https://sbimarathon.com/2020/03/02/planning-to-invest-in-a-top-long-range-rifle-scope/","date":"2024-04-25T01:06:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00499.warc.gz","language_score":0.9457178711891174,"token_count":724,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__15051730","lang":"en","text":"Are you in search of Rifle scopes designed for long range shooting? Are you on plans for hunting? Or is it that you simply have to improve your aim? Well, whatever, it is if you are a long range shooter, you need to invest in a very high quality long range rifle scope for accurate view. Now, the rifle accessory market is flooded with many such scopes but then not all would be equally great for you. But, not to worry, you can bank on Landove Dual Focusing Zoom 20-60×80 Spotting Scope here.\nThe Landove is a top favorite of long range rifle shooters and for all the right reasons. The post below offers a brief on the Landove smarty.\nGreat magnification and large eyepiece\nThere are some features in the Landove scope that easily keep it ahead in the market. Some of them are high magnification ad big eyepiece. You will get 20x-60x variable magnification as well as dynamic lens double focus system. These edgy features assure excellent zoom focus on target. The 24mm HD 2” large eyepiece as well as 45 degree eyepiece ergonomic enables better comfort while targeting. Then, the scope promises fine premium focus dials and coaxial coarse that enables you to achieve and clarify the image fast.\nThis is certainly another high-end aspect of the Landove scope. The scope comes with big objective 80mm lens as well as full multi-coated optics featuring BAK4 Prism. The product further features 9 pcs or four groups lens that help to enhance light transmission, extend clear, crisp and vibrant visuals in hazy low-light conditions as well.\nIf you are worried about taking out your rifle scope in rainy or snowy days, don’t worry. This Landove rifle scope carries a solid Nitrogen-filled fog-proof and waterproof design which allows it to tackle the roughest of weather conditions with ease.\nThe scope also promises sturdy build and lasting durability. It’s made from premium rubber at outer layer while its non-slip, easy-grip and shockproof contour assure lasting safeguard. Besides, the scope’s objective lens is protected by telescopic sunshade which keeps it safe during sudden accidents. You will love the stylish spiral eyepiece cover which can easily adapt to any kind of situation. In fact, the eyepiece cover stays obstructed while worn with the glasses as well.\nNew phone adapter\nYou will be glad to know the Landove scope arrives with an all-new big mobile digiscoping adapter that will help to take videos and photos of all that you acquire. You will be able to share such awesome captures with families and friends as well as post them on social media sites. This rifle scope is an excellent piece for archery, target shooting, wildlife watching, bird watching, hunting, astronomical observation and so on.\nMetal tripod plus carrying bag\nThe Landove rifle scope carries full metal tabletop tripod as well as tripod mount to help you achieve steady observations. You will have rotating mount for tripod which will be handy to achieve the perfect position for eyepiece. Whether you want your eyepiece down or up or sideway- the tripod will enable you to achieve the desired viewing position with ease. Alongside, you will get all other needed accessories to keep your scope clean and safeguarded. These include carry bag, protection covers for lens and eyepiece as well as cleaning cloth.","domain":"optical_engineering"}
{"url":"https://www.thepelletshop.com/products/athlon-optics-midas-tac-gen-2-5-25-56mm-ffp","date":"2024-02-22T10:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00257.warc.gz","language_score":0.7968393564224243,"token_count":273,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__151443187","lang":"en","text":"IF YOU ARE HAVING CHECK OUT ISSUES\nGIVE US A CALL AT 718 450 4146\nTO PLACE YOUR ORDER OVER THE PHONE\nIF YOU CAN ADD IT TO CART, ITS IN STOCK!\nYou have %itemCount% in your cart.\nTotal being %total%\nThe Midas Tac is loaded with features including : HD Glass, FFP, Advanced Fully Multi-coated, True Zero Stop, Capped Windage Turret, 34mm Tube, 10MIL/25MOA Travel-Per-Rotation Turrets. Non-illuminated reticle\nThe big brother in the Midas TAC family, this 5-25×56 first focal plane scope gives you even more versatility. A minimum parallax of 25 yards and 110 MOA of elevation travel makes this scope perfect for close range rimfire or long range engagement with standard and magnum calibers. HD glass and advanced Fully Multi-Coated lenses enhance target appearance at all distances. A true precision Zero Stop for a repeatable return to zero and a capped windage turret give confidence you’ll be able to make the shot.\nMon-Fri: 10am - 8pm ESTSat: 10am - 5pm ESTSun: Closed\nCall / Text(718) 450-4146","domain":"optical_engineering"}
{"url":"http://wwww.mobilevisionsystems.com/","date":"2016-07-25T19:58:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-30/segments/1469257824345.69/warc/CC-MAIN-20160723071024-00231-ip-10-185-27-174.ec2.internal.warc.gz","language_score":0.9202808141708374,"token_count":244,"dump":"CC-MAIN-2016-30","global_id":"webtext-fineweb__CC-MAIN-2016-30__0__48453034","lang":"en","text":"MVS in Agriculture\nMobile Vision Systems (MVS) offers vision systems designed to be installed in combines, grain carts, sprayers, planters, air drills, grain extractors, and other equipments used in agriculture. These systems allow having an optimum vision, both during day and night, of all those machine parts which are not controlled by traditional monitors.\nWith our systems, you will be able to operate your machinery in a safer and more efficient way.\nFor those industries that use vehicles or machines to carry out their activities, a poor vision not only slows down the maneuvers but it may also cause accidents or mistakes.\nMVS vehicle vision systems are a safe and affordable way to avoid this by eliminating vehicle blind spots in any lighting condition.\nIn the Industry\nMobile Vision Systems offers vision systems for Forklifts, Side Loaders, Handlers, and other types of industrial vehicles used in load lifting operations. Operators of this type of vehicles generally have to work in conditions with limited vision. A limited vision increases handling and maneuvering time, causing a decrease in productivity.\nMobile Vision Systems provides you with a wide coverage of your scope of action by placing various cameras with multiple display options.","domain":"optical_engineering"}
{"url":"http://manzanitadrive.blogspot.com/2012/08/kla-tencor-corporation-klac-cash-flow.html","date":"2018-07-19T11:41:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590866.65/warc/CC-MAIN-20180719105750-20180719125750-00562.warc.gz","language_score":0.8905516266822815,"token_count":124,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__61931795","lang":"en","text":"Thursday, August 30, 2012\nKLA-Tencor Corporation: $KLAC Cash Flow Valuation Update\nCurrent Price: ~ $51/share\nYield: ~ 2.78%\nKLA-Tencor designs and manufactures yield-management and process-monitoring systems for the semiconductor industry. The systems are used to analyze the manufacturing process at various steps in a product's development. The firm's laser-scanning products are used for wafer qualification, process monitoring, and equipment monitoring. KLA-Tencor also provides systems for optical metrology and e-beam metrology.","domain":"optical_engineering"}
{"url":"https://saci-florence.edu/diagnostic-techniques-conservators","date":"2021-09-17T16:24:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055684.76/warc/CC-MAIN-20210917151054-20210917181054-00131.warc.gz","language_score":0.8624404668807983,"token_count":223,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__207050375","lang":"en","text":"Diagnostic Techniques for Conservators\nARTH(DTC1)495 Diagnostic Techniques for Conservators3\nPrerequisites: Good basic knowledge of Chemistry\nThis course teaches students to read information about the artwork through diagnostic examinations. Students learn to recognize the state of conservation, the execution techniques, previous restorations, and, if possible, the date of the artworks. The first part of the course is based on optical and nuclear techniques for diagnostics. Lecturers discuss light structures, digital imaging, light detectors and sources, infrared reflectography, particle induced x-ray emission (PIXE), neutron activation analysis, atomic absorption spectrometry (AAS), micro-raman spectroscopy, and dating techniques such as C14 and thermoluminescence. Principles and applications of laser cleaning are also introduced. In the second part of the course, image diagnostics are investigated, such as radiographic exams, ultraviolet fluorescence, and infrared photography.\n(See syllabus below. An updated syllabus will be posted at the beginning of each term.)\nSyllabus & Faculty","domain":"optical_engineering"}
{"url":"https://www.datacenterdynamics.com/en/news/researchers-to-use-alaska-communications-submarine-cable-to-detect-earthquakes/","date":"2023-02-02T08:07:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499967.46/warc/CC-MAIN-20230202070522-20230202100522-00304.warc.gz","language_score":0.9364888072013855,"token_count":351,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__17655716","lang":"en","text":"Alaska Communications is allowing researchers to use its submarine cables to detect earthquakes.\nThe Alaskan telco is collaborating with the University of Michigan’s Department of Earth and Environmental Sciences to allow earthquake monitoring data to be collected from the ocean floor via the company’s submarine fiber optic cable.\nUniversity researchers have attached a distributed acoustic sensing (DAS) interrogator to equipment at Alaska Comm’s landing station in Florence, Oregon, which uses a beam of light inside the fiber to analyze seismic activity and report data back to the research team.\n“With the Cascadia subduction zone stretching along the pacific northwest coastline along Canada, this is in an ideal location for our team to gather seismic data,” said University of Michigan Assistant Professor Ƶack Spica. “This research project will support continued learning about utilizing fiber for earthquake research, as well as learn how we can use this technology to provide early warning for tsunamis, which are often prompted by earthquakes.”\nSpica and fellow researchers published a proof of concept study for using fiber to detect seismic activity last year.\nGoogle has also conducted tests around using its submarine cable infrastructure to detect earthquakes, while researchers in Antarctica have tested using fiber buried in the ice to detect movement and deformation of ice amid climate change and detect small earthquakes in the region.\n“With two subsea cables connecting Alaska to the Lower 48, we have substantial infrastructure to aid in research that can help our communities,” said Rick Benken, vice president, network strategy, engineering and operations at Alaska Communications. “We’re excited to support the University of Michigan in gaining important insights about earthquakes and tsunamis.”","domain":"optical_engineering"}
{"url":"https://eclecticnortheast.in/2022/03/14/optical-microscope-market-is-booming-worldwide-unitron-nikon-instruments-hitachi/","date":"2022-08-09T14:27:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570977.50/warc/CC-MAIN-20220809124724-20220809154724-00235.warc.gz","language_score":0.8588275909423828,"token_count":1425,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__54874004","lang":"en","text":"Latest released the research study on Global Optical Microscope Market, offers a detailed overview of the factors influencing the global business scope. Optical Microscope Market research report shows the latest market insights, current situation analysis with upcoming trends and breakdown of the products and services. The report provides key statistics on the market status, size, share, growth factors of the Optical Microscope The study covers emerging player’s data, including: competitive landscape, sales, revenue and global market share of top manufacturers are Nikon Instruments Inc. (United States),Hitachi (Japan),Carl Zeiss (Germany),Olympus Corporation (United States),Leica Microsystems (Germany),Motic (Canada),Meiji Techno (United States),Optika Srl (Italy),KERN & SOHN GmbH (Germany),Unitron (United States)\nFree Sample Report + All Related Graphs & Charts @: https://www.advancemarketanalytics.com/sample-report/46391-global-optical-microscope-market\nOptical Microscope Market Definition:\nThe optical microscope also called a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. The optical microscope has been a standard tool in life science as well as material science. The maximum magnification power of optical microscopes is typically limited to around 1000x because of the limited resolving power of visible light. Modified environments such as the use of oil or ultraviolet light can increase the magnification.\nKeep yourself up-to-date with latest market trends and changing dynamics due to COVID Impact and Economic Slowdown globally. Maintain a competitive edge by sizing up with available business opportunity in Global Optical Microscope Market various segments and emerging territory.\n- Automation of Optical Microscopes with Range Of Functions Being Controlled Via a Touch-Sensitive Screen\n- Rise to Low-Cost Digital Microscopes with a Wide Range Of Imaging Possibilities, Including Time-Lapse Micrography\n- Growing Demand for Research and Inspection from End-Use Industry Owing To High Imaging Technology\n- Rapid Increase in Diseases among People Leads to Demand from Laboratories and Clinics\n- Increasing demand for 3D Imaging Leads to Developments of 3D Microscope\n- Technological developments like CMOS and Charge-Couple Device (CCD) Cameras for Optical Microscopes\n- Infrared-Optical Hybrid Microscopy in Biomedical Applications\nThe Global Optical Microscope Market segments and Market Data Break Down are illuminated below:\nby Components (50 Strips /Tests Per Box, 1x Test Cassette, 1x Desiccant Pouch, 25x Disposable Pipettes, Sample Diluent), Disease (Autoimmune Diseases, Tropical Diseases, Liver Diseases, Sexually Transmitted Diseases), Sample (Serum, Plasma, Whole Blood), End Use (Hospitals, Clinics, Diagnostics Laboratory, Home Care, Others)\nRegion Included are: North America, Europe, Asia Pacific, Oceania, South America, Middle East & Africa\nCountry Level Break-Up: United States, Canada, Mexico, Brazil, Argentina, Colombia, Chile, South Africa, Nigeria, Tunisia, Morocco, Germany, United Kingdom (UK), the Netherlands, Spain, Italy, Belgium, Austria, Turkey, Russia, France, Poland, Israel, United Arab Emirates, Qatar, Saudi Arabia, China, Japan, Taiwan, South Korea, Singapore, India, Australia and New Zealand etc.\nEnquire for customization in Report @: https://www.advancemarketanalytics.com/enquiry-before-buy/46391-global-optical-microscope-market\nStrategic Points Covered in Table of Content of Global Optical Microscope Market:\nChapter 1: Introduction, market driving force product Objective of Study and Research Scope the Optical Microscope market\nChapter 2: Exclusive Summary – the basic information of the Optical Microscope Market.\nChapter 3: Displaying the Market Dynamics- Drivers, Trends and Challenges of the Optical Microscope\nChapter 4: Presenting the Optical Microscope Market Factor Analysis Porters Five Forces, Supply/Value Chain, PESTEL analysis, Market Entropy, Patent/Trademark Analysis.\nChapter 5: Displaying market size by Type, End User and Region 2015-2020\nChapter 6: Evaluating the leading manufacturers of the Optical Microscope market which consists of its Competitive Landscape, Peer Group Analysis, BCG Matrix & Company Profile\nChapter 7: To evaluate the market by segments, by countries and by manufacturers with revenue share and sales by key countries (2021-2026).\nChapter 8 & 9: Displaying the Appendix, Methodology and Data Source\nFinally, Optical Microscope Market is a valuable source of guidance for individuals and companies in decision framework.\nData Sources & Methodology\nThe primary sources involves the industry experts from the Global Optical Microscope Market including the management organizations, processing organizations, analytics service providers of the industry’s value chain. All primary sources were interviewed to gather and authenticate qualitative & quantitative information and determine the future prospects.\nIn the extensive primary research process undertaken for this study, the primary sources – Postal Surveys, telephone, Online & Face-to-Face Survey were considered to obtain and verify both qualitative and quantitative aspects of this research study. When it comes to secondary sources Company’s Annual reports, press Releases, Websites, Investor Presentation, Conference Call transcripts, Webinar, Journals, Regulators, National Customs and Industry Associations were given primary weight-age.\nFor Early Buyers | Get Up to 20% Discount on This Premium Report: https://www.advancemarketanalytics.com/request-discount/46391-global-optical-microscope-market\nWhat benefits does AMA research study is going to provide?\n- Latest industry influencing trends and development scenario\n- Open up New Markets\n- To Seize powerful market opportunities\n- Key decision in planning and to further expand market share\n- Identify Key Business Segments, Market proposition & Gap Analysis\n- Assisting in allocating marketing investments\nDefinitively, this report will give you an unmistakable perspective on every single reality of the market without a need to allude to some other research report or an information source. Our report will give all of you the realities about the past, present, and eventual fate of the concerned Market.\nThanks for reading this article; you can also get individual chapter wise section or region wise report version like North America, Europe or Southeast Asia.\nCraig Francis (PR & Marketing Manager)\nAMA Research & Media LLP\nUnit No. 429, Parsonage Road Edison, NJ\nNew Jersey USA – 08837\nPhone: +1 (206) 317 1218","domain":"optical_engineering"}
{"url":"https://nyzufijemulefoba.tjarrodbonta.com/hybrid-optics-for-space-applications-book-25213qn.php","date":"2020-11-28T07:23:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195198.31/warc/CC-MAIN-20201128070431-20201128100431-00048.warc.gz","language_score":0.8908470869064331,"token_count":1544,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__73878149","lang":"en","text":"3 edition of Hybrid optics for space applications found in the catalog.\nHybrid optics for space applications\nReinhard H. Czichy\n|Statement||Reinhard H. Czichy.|\n|Series||ESA SP ;, 1158|\n|LC Classifications||TS514 .C69 1993|\n|The Physical Object|\n|Pagination||191 p. :|\n|Number of Pages||191|\n|LC Control Number||95122670|\nFog substantially attenuates visible radiation. These two parameters define the full well of the pixel i. Readout integrated circuits After the photocharge has been collected into pixels, the charge flows to the ROIC via the indium bump bond. Immersion can be defined as a multisensory perception feature starting with audio, then display, gestures, haptics, etc.\nThe proposed model combines the gray-level intensities, the illumination variation, and the position parameters of a reference subset. It can completely block the fractions of optical beam transmitted from earth to the space. This is known as consumer IR technologies. The overlapping chips are discarded to avoid the interference at receiver end and decoder will only filter the nonoverlapping chips. Free-space optics can be used for communications between spacecraft.\nSpatially resolved Earth imaging applications are also out of scope. Immersion can be defined as a multisensory perception feature starting with audio, then display, gestures, haptics, etc. The most basic functionality of the pixel is charge-to-voltage conversion, and there are three basic types of amplifiers that can perform this function. For critical weather conditions, short link distance and lower data rate can be used to optimize the FSO system for successful transmission [ 11 ].\nWriters for Young Adults: Biographies Master Index\nComplete Prose Works of John Milton, , Volume Seven, 1659-1660 (Complete Prose Works of John Milton)\n2000 Import and Export Market for Non-Military Arms and Ammunition in Germany\nFurniture Distribution in Canada\nplatoon school in America.\nThe Dick Powell Story\nAppendix of 1898.\nMr.Perrin and Mr.Traill\nCentral Islip, my home town\nState of Rhode-Island and Providence Plantations, ss. To the sheriff of the county of [blank] or to his lawful deputy, greeting.\nThe data is an independent unipolar digital signal. At the destination, the beam is intercepted by a photodetector, the data is extracted from the visible or IR beam demodulatedand the resulting signal is amplified and sent to the hardware.\nAlso, the radiation frequency of emitted waves can be tuned by the types of groove structures and the energy of electrons emitted from electron gun. The photons power would be absorbed by these particles. Relays may be employed to extend the range Hybrid optics for space applications book FSO communications.\nAlthough their most obvious applications are in astrophysics, NASA is interested in identifying possible uses for these systems to address a broader range of its science, exploration, and technology goals.\nThe AR coating can be optimized for peak quantum efficiency over the infrared region 0. FSO communication is a practical solution for creating a three dimensional global broadband communications grid, offering bandwidths far beyond what Hybrid optics for space applications book possible in the Radio Frequency RF range.\nIt also depends upon dust and rain. To be considered, abstracts must be received by January 7,via email to the address also provided on this website. Several entities are continually attempting to overcome these key disadvantages to FSO communications and field a system with a better quality of service.\nDark current is a function of area, temperature and cutoff wavelength. Enables micro-optics foundries to integrate the latest fabrication and replication techniques, and accordingly fine tune their own fabrication processes.\nRFI responses in the form of abstract submissions may be made through this website. Comparison of FSO with different communication system. The discussions then shift to the application of Fourier methods to the study of spatial information transmission through the human visual system, as well as the application of coherent techniques to vision research.\nRequirements and formats for the quad charts and accompanying narrative abstracts are provided on this website. The main focuses of these studies are fog, haze, rain, and snow weather conditions.\nIf the energy source does not produce a sufficiently parallel beam to travel the required distance, collimation can be done with lenses.\nAs of October [update]none have fielded a working system that addresses the most common atmospheric events. Usage and technologies[ edit ] Free-space point-to-point optical links can be implemented using infrared laser light, although low-data-rate communication over short distances is possible using LEDs.\nRanging from micro-optics to nanophotonics, and design to fabrication through to integration in final products, it reviews the various physical implementations of digital optics in either micro-refractives, waveguide planar lightwave chipsdiffractive and hybrid optics or sub-wavelength structures resonant gratings, surface plasmons, photonic crystals and metamaterials.\nThe power density of the optical beam is decreased and the availability of the transmission in a FSO system is directly affected by absorption. Haze particles can stay longer time in the air and lead to the atmospheric attenuation.\nThe effect of these limitations over the atmosphere is shown in Figure 1. Fog particles lead to Mie scattering so Mie theory is applicable to measure the scattering. Optical band pass filters serve the purpose of encoders and decoders.\nDifferent Studies Based on Attenuation Effect Different studies are going on different weather condition to design new models based on the effectiveness of the system.Selected Papers on Phase-Space Optics. Editor(s): and sketches some of the many interesting applications of phase-space methods.\nThe volume begins with foundational papers, and continues with phase-space tools for optics, analysis and design of optical systems Hybrid optics for space applications book devices, partially coherent signals and systems, the discrete Wigner.\nSecondary and sometimes tertiary optics ultimately dictate the photometric performance of solid-state lighting (SSL) lamps and luminaires. LEDs deliver a relatively broad beam that requires shaping to place light where it's required in certain applications.\nFree-space optical communications, link budget, turbu-lence, fading. 1. Introduction Free-space optical communication (FSO) systems (in space and inside the atmosphere) have developed in response to a growing need for high-speed and tap-proof communica-tion .Sep pdf, · This title provides a comprehensive, pdf tutorial covering the most recent advances in the emerging technology of free-space optics (FSO), a field in which interest and attention continue to grow along with the number of new challenges.\nThis book is intended as an all-inclusive source to Author: Arun K. Majumdar.Books at Amazon. The tjarrodbonta.com Books homepage helps you explore Earth's Biggest Bookstore without ever leaving the comfort of your couch. Here you'll find current best sellers in books, new releases in books, deals in books, Kindle eBooks, Audible audiobooks, and so much more.Secondary and sometimes tertiary optics ultimately dictate the photometric performance of ebook lighting (SSL) lamps and luminaires.\nLEDs deliver a relatively broad beam that requires shaping to place light where it's required in certain applications.","domain":"optical_engineering"}
{"url":"https://blog.snowplownews.com/j-w-speaker-led-warning-light-with-camera/","date":"2023-12-02T14:19:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100427.59/warc/CC-MAIN-20231202140407-20231202170407-00058.warc.gz","language_score":0.9327548742294312,"token_count":368,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__109609492","lang":"en","text":"The Model 272 CHMSL is the latest addition to J.W. Speaker’s 360-degree lighting offerings, with its compact design and high-quality camera for wide-range visibility.\nFebruary 19, 2023\nThe Model 272 CHMSL is the newest LED stop/tail light with a built-in backup camera. As part of J.W. Speaker’s growing list of 360-degree lighting solutions, this 7” x 2” light is available as a combined warning light and Center High Mount Stop Light (CHMSL) – all with a high-definition camera to simplify trailering or backing up.\nThe Model 272 CHMSL lights are positioned higher than side brake lights and directly in the driver’s line of sight to provide the safety and visibility features needed to help deter rear-end collisions.\nThe 272 CHMSLs light up every time a driver pushes the brake pedal, the LED lights reach maximum intensity faster than incandescent counterparts. This brightness commands the attention of drivers behind the vehicles and gives them time to react.\nIn addition to the lights’ compact design, the Model 272 CHMSL boasts a high-quality camera for extra driver visibility. The camera can be connected to reverse lights to display anytime the vehicle is put in reverse and it is adjustable to allow for various mounting heights.\n“This light is the first and only light from J.W. Speaker with a high-definition camera built into it,” said Tim Speaker, CEO at J.W. Speaker. “With this continued innovation, we’re excited to work with our OEM partners and J.W. Speaker customers to integrate these lights into more vehicles and do our part to create safer driving experiences for drivers and fellow travelers.”","domain":"optical_engineering"}
{"url":"https://www.wineindustryservices.com/equipmentsale/bottle-carton-inspection-systems","date":"2023-03-24T19:28:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945288.47/warc/CC-MAIN-20230324180032-20230324210032-00284.warc.gz","language_score":0.9627500176429749,"token_count":127,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__128354168","lang":"en","text":"- Bottle Inspection Units\n- Carton Inspection Units\nOver 30 years of experience in the bottling sector and a company philosophy that has always been based on the combination of innovation and reliability have led to LOGICS & CONTROLS becoming the Italian leader in the design and manufacture of in-line control and inspection systems. The reliability, precision and ease of use of its systems have made their presence possible in more than 50 countries around the world. This leadership, not only at home, has found further confirmation in the camera systems based on its exclusive optical units.\nPlease click to view product brochure\nBottle & Carton Inspection Systems","domain":"optical_engineering"}
{"url":"https://www.poscope.com/product/plasmasensout/","date":"2024-03-02T03:19:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475727.3/warc/CC-MAIN-20240302020802-20240302050802-00688.warc.gz","language_score":0.8717684149742126,"token_count":462,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__145583225","lang":"en","text":"Torch height control system PlasmaSensOut is an universal THC for precise plasma cutting.\nThanks to optical fiber connection, PlasmaSensOut and PlasmaSens torch height sensor (including in a package) forms a complete and reliable torch height control system. Thanks to an optical connection it’s fully electrically (galvanic) isolated from high voltage plasma cutter’s equipment and also safe to use. PlasmaSensOut has standard programmable ARC_OK, UP and DOWN signals. Generally it is compatible with most CNC controller boards on the market.\nUser interface is simple and user friendly. On the left there are 3 LED diodes to signalize state of the outputs. Next on the right side is also LED display. It has great readability also in high luminosity environment. In default state it shows temporally arc voltage. However menus appears on LED display during settings.\nUnder LED display there are 3 buttons. Hence they allows quick and efficient moving through menu. User can set the following THC parameters: reference voltage, hysteresis (non-active range around reference height), delay time and anti-dive limit voltage. Moreover all parameters are adjustable during operation.\nIt doesn’t need any drivers or special software. Even more, it is compatible with most CNC software and hardware which accepts OK, Up and Down signals.\n- Isolated output signals: Arc OK, Up and Down (DC solid state)\n- Programmable reference and hysteresis voltage, delay time and anti-dive limit voltage\n- Current plasma voltage presentation on LED display\n- Arc present, up and down – LED signalization\n- Full optical input isolation; transmitter and receiver connected over an optical cable\n- Test mode operation\n- DC power supply (6- 36 V)\n- Compatible with most CNC controller boards including PoKeys57CNC\n- DIN-rail mountable housing\n- PlasmaSensOut device\n- PlasmaSens sensor device\n- Optical cable (2m and 5m)\nCompared to other torch height control solutions, PlasmaSens products are only solution with optical fiber isolation between sensor and controlling electronics. Even more, it is first and only Plasma Sensor with optical fiber isolation.","domain":"optical_engineering"}
{"url":"https://fr.schurter.com/fr/Input-Systems/Technologies/Optical-Bonding","date":"2018-04-22T00:39:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945484.57/warc/CC-MAIN-20180422002521-20180422022521-00600.warc.gz","language_score":0.8592546582221985,"token_count":296,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__194374590","lang":"en","text":"In touch panels without optical bonding there is an air gap between the display and the touchscreen. This air gap causes reflections by light refraction at the surfaces of the display and the touchscreen.\nTo improve the readability of the screen contents in direct sunlight, the optical bonding process provided by SCHURTER is the optimal solution.\nHere, the air gap between the décor glass or touchscreen and the display is filled with a highly transparent adhesive.\nIn addition to substantial improvements in the readability and the contrast and brightness of the colours, the mechanical robustness of the touch panel is increased by Optical Bonding. No condensation moisture can arise and no dust or dirt particles can penetrate. By filling the insulating air gap, heat is dissipated through the front glass to the outside.\nBenefits of Optical Bonding\n• Optical Bonding eliminates the reflections between display and\ntouchscreen / front glass.\n• The elimination of the air gap between the cover glass and\nthe display means that moisture cannot penetrate and cause\nfogging on the display surface.\nNo dust and dirt particles\n• By eliminating the air gap no dust and dirt particles can penetrate.\n• A touch panel with Optical Bonding is resistant to mechanical loads.\nThis way of installation significantly reduces the risk of glass\nsplintering or breakage.\nImproved heat dissipation\n• By filling the insulating air gap between the components, heat can\nbe derived to the outside.","domain":"optical_engineering"}
{"url":"https://www.toolorbit.com/spectra-lt56-2-3-plane-laser-tool-w-manual-hr220-clamp-bracket-target-case","date":"2020-07-10T00:48:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655902377.71/warc/CC-MAIN-20200709224746-20200710014746-00012.warc.gz","language_score":0.727612316608429,"token_count":115,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__95602872","lang":"en","text":"Spectra LT56-2 3 Plane Laser Tool W Manual Hr220 Clamp Bracket Target & Case. One tool to use on every job every day. HR220 receiver can be added for exterior applications for maximum jobsite versatility. Water, mud, and shock resistant, able to withstand a 3-foot (1 meter) drop onto concrete... IP54 rated.\nSpectra LT56-2 3 Plane Laser Tool Features:\nSpectra LT56-2 Applications:\nSpectra LT56-2 Specifications:\nSpectra LT56-2 Includes:","domain":"optical_engineering"}
{"url":"http://promedic.co.th/product7.htm","date":"2017-02-20T13:08:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170562.59/warc/CC-MAIN-20170219104610-00028-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9368816018104553,"token_count":158,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__18733676","lang":"en","text":"THE SECOND WAVE OF PELICAN LED\nFinally, an LED flashlight that's just as bright as a high performance incandescent, without the annoying dark spots and irregular beam pattern and susceptibility to breakage found in standard filament lamps. Brilliant power and faultless dependability . . . that's Recoil LED Technology.\nHere's the secret: by pointing the LED backwards into the reflector, 100% of the light is captured and projected forward. The squared spot on the beam is your proof that all available light is being used and there's no peripheral projection. It's a true collimated beam that\nreliably cuts through thick smoke, dust, and the darkest abyss.\nRecoil LED Technology. Think of it as a lighthouse in the palm of your hand.","domain":"optical_engineering"}
{"url":"https://hti-instrument.com/blogs/news/application-of-thermal-imager-in-outdoor","date":"2023-09-29T17:26:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510520.98/warc/CC-MAIN-20230929154432-20230929184432-00500.warc.gz","language_score":0.9279813766479492,"token_count":377,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__287566583","lang":"en","text":"With the national fitness, there has been a burst of \"exploration fever\" in recent years, and more and more ordinary people have joined the team of \"explorers\". The green mountains and green waters, the fragrance of birds and flowers, and the cliffs make outdoor sports full of surprises. And challenge.\nTemperature traces left by people touched\nIn case of missing, the police, fire and civilian rescue teams will take rescue measures as soon as possible. However, the complex terrain, large area, foggy, and poor night vision in the mountainous areas have caused great difficulties for rescue work. At this time, the thermal imaging camera came in handy.\nThe infrared thermal imager uses infrared detectors and optical imaging objectives to receive the infrared radiation signal of the measured target, passes through the photosensitive element of the infrared detector and uses the electronic scanning circuit to scan the infrared thermal image of the measured target. The radiant energy is converted into an electrical signal, and the infrared thermal image is displayed on the TV screen or monitor through the amplification process, conversion or standard video signal. It has a long range of action, strong concealment, strong penetrating ability, all-weather work, anti-glare interference, can identify hidden targets, and has a very important role in field rescue.\nAt the same time, in the absence of light or low light, the thermal imaging camera can clearly distinguish the topography and landforms, which is convenient for hikers to camp safely at night, and can also simply see the wild animals that are active in the distance to avoid beast attacks; In the daytime or in rainy and snowy weather, the thermal imager can also effectively penetrate the smoke, rain and snow, so that the traveler can see the road conditions and the surrounding environment clearly in fog and rainy and snowy weather, and provide protection for the safety and efficiency of outdoor activities.","domain":"optical_engineering"}
{"url":"http://www.studioitalia.com.au/collection/table/item/1417-bubble","date":"2013-05-20T12:02:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698924319/warc/CC-MAIN-20130516100844-00054-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9634057283401489,"token_count":174,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__63551209","lang":"en","text":"Its elegant and decorative style- a sort of geometric dialog between the metallic tubular structure and the spherical diffusers- is what distinguishes this family of lamps. The diffusers are made of free blown glass, and are available both in a glossy or satin texture, either white or lobster-red. The lamps are fitted with a dimmer placed on the structure of the lamp, which makes it easy to reach and to control the intensity of the light. The light provided by the highly efficient halogen bulbs is filtered by the glass spheres, and give diffused, warm and enveloping light.\nBurkhard Panteleit was born in Berlin in 1943 and he attended an apprenticeship school where he specialised in lighting manufacture. He gained a degree at the Academy of Arts in Berlin. Since 1971 he has been working as a designer concentrating on the lighting industry.","domain":"optical_engineering"}
{"url":"http://gp-fiberoptics.de/en/home/","date":"2022-01-19T13:23:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301341.12/warc/CC-MAIN-20220119125003-20220119155003-00361.warc.gz","language_score":0.9546769857406616,"token_count":257,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__232997989","lang":"en","text":"Welcome to GP Fiber Optics GmbH\nGP-Fiber Optics GmbH is one of the leading companies in the field of production and assembly of fiber optic products. Our product range extends to fiber optic lighting technology as well as LED lighting technology with system components, fiber optic data technology and converters, which we deliver worldwide. In addition to the standard products, we manufacture any special applications quickly and reliably, even in small quantities. We are at your disposal with our many years of experience to advise and design your project.\nLighting, luminaires and room situations always present a special challenge in terms of design and selection. GP Fiber Optics has been working with architects, designers, studios and artists for more than 25 years to meet this challenge. The result is creative solutions that have never before been found on the market.\nIf you wish, we are at your side from the very beginning and develop project solutions for you.\nDue to our own production we can manufacture and deliver flexible, customer-oriented and project-oriented.\nCustomer Service / Support\nEven after delivery or completion we are at your side. Long-term business and customer relationships are still important to us.","domain":"optical_engineering"}
{"url":"http://www.chinafastenerinfo.net/en/company/100319.htm","date":"2022-01-27T23:21:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305317.17/warc/CC-MAIN-20220127223432-20220128013432-00404.warc.gz","language_score":0.9246709942817688,"token_count":219,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__83628975","lang":"en","text":"OPENEX Intelligent Technology (Shanghai) Co., Ltd., is a high-tech company which dedicated to provide an all-round inspection service. OPENEX has been focusing on the optical inspection machine and other customized inspection system, which are widely used in quality control for automotive, 3C, semiconductor, energy, transportation, printing, packaging, machinery and other industries. Combined with robots and other mechanism, OPENEX inspection machine uses the machine vision, non-destructive testing and laser technology to do the dimension measurement, defect detection, positioning and other assembly actions. Openex has extensive experience in the field of optical inspection. We are committed to provide a professional and comprehensive inspection service, which can help our customers to improve efficiency and quality. We can achieve the automated sorting and inspection to cut your labor cost. We can also help to control the percent of pass and reduce the customer complaints. Thus to further promote your corporate image and make a great leap in your company’s competitiveness.","domain":"optical_engineering"}
{"url":"https://www.srtalliance.com/panasonic-releases-aw-ue100w-k-ptz-4k-camera-with-support-for-srt/","date":"2024-02-29T15:21:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474843.87/warc/CC-MAIN-20240229134901-20240229164901-00127.warc.gz","language_score":0.9219132661819458,"token_count":171,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__133673593","lang":"en","text":"Panasonic Releases AW-UE100W/K PTZ 4K Camera with Support for SRT\nPanasonic Corporation will release the 4K Integrated Camera AW-UE100W/K, a compact camera equipped with a range of functions including 4K 60p/50p shooting and 12G-SDI output, in August 2020.\nThe camera supports a range of video transmission protocols, such as high bandwidth NDI®, which allows low latency transmission of high-quality live video over a single LAN cable, and SRT, which has strong security suitable for unstable network environments. It supports next-generation video production such as shooting for live video distribution. In addition, support for FreeD, which can connect to an AR/VR system without the use of an encoder, makes virtual studio shooting possible.\nRead the full release here.","domain":"optical_engineering"}
{"url":"http://twofeetgallery.com/Photography101/Zooms.php","date":"2018-01-18T04:04:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887065.16/warc/CC-MAIN-20180118032119-20180118052119-00483.warc.gz","language_score":0.9446489810943604,"token_count":235,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__114541615","lang":"en","text":"How many times have I seen a $200 or $300 camera advertised with 20x zoom. Wow, would be the first response of a naive reader. Let the buyer beware is my advice. Most low end digital cameras advertise the total zoom range of their camera. This involved two different types of zooms: optical and digital. Optical zooms are desirable. They magnify the image without a loss of image quality. Their only drawbacks are their size and that they require more light than a non zoomed image. By requiring more light, you shutter time will increase. Therefore, depending upon your exact photograph it may be a hinderance.\nSee the following images that demonstrate an optical and digital zoom. Notice that there is no degration in image quality on the optical, but in the digital image the loss of sharpness is readily apparent.\nNever use a digital zoom. It is always best to magnify the image once its been loaded into the computer as opposed to it having your camera perform the operation. Think about it, which is more likely to produce a better job processing your image, a small camera or the full resources of your desktop/laptop computer?","domain":"optical_engineering"}
{"url":"https://largescreenvideo.com/equipment","date":"2020-04-09T03:08:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371829677.89/warc/CC-MAIN-20200409024535-20200409055035-00118.warc.gz","language_score":0.8924115896224976,"token_count":791,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__122848461","lang":"en","text":"Big Beautiful Pictures Make Great Impressions.\nBright enough to be viewed in direct sunlight. Lighter, more stable, and with modest power requirements, LED screens run cool to the touch while operating. Once known as “Jumbotrons” today’s LED screens for video playback or image magnification are in a whole new league of technology.\nThis simulation gives a feel for various LED screen and scenic element resolutions. The dot grid depicts screens photographed with a 35mm camera sporting a “normal” 50mm lens from two meters away.\nFor ease of comparison, the dots are here held to a constant size, equivalent to 3mm individual LEDs. In reality, the individual LEDs in different products are usually tripled and vary considerably in size.\nIndividual LED modules usually each contain three LEDs.\nSometimes, projection is the best way to get a big bright image.\nLSV features outdoor screens, indoor screens, and truck-configured mobile screens, in addition to general a/v equipment, scenic elements, and broadcast camera packages. With so many screen types to choose from, there’s a perfect screen and pixel size for every project.\nFor outdoor displays, LED digital signs stand up to bright daylight and harsh weather extremes. Our latest addition to outdoor technology, the LSV Outdoor 4mm is the most attractive, multi-purpose presentation format available. These groundbreaking screens debuted at the 2016 SuperBowl City.\nWith outdoor LED video technology, every corner of your event is like being center stage. Along with LSV Curvable 3.91mm LSV Outdoor 4mm F-LED Ultra Lightweight 11mm G-LUX Mesh 15mm G-LUX Mesh 37.5mm Inflatable Outdoor Screens for casual events, provide a spectrum of screen solutions.\nIndoors, LED displays provide high-quality images even in the harshest lighting conditions. They stand out at any busy tradeshow, conference, exhibit, or elegant entertainment environment.\nLSV’s Indoor displays include the latest high pixel, hi resolution formats. They continue to impress with beautiful images and reliability. They include Display Poster 2.5mm Blackchip 2.5mm Blackchip 2.8mm Blackchip 3.75mm LSV Curvable 3.91mm F-LED Ultra Lightweight 11mm Soft Curtain LED 18mm LED Video Spheres 10mm\nLED technologies include several options for creative use of scenic and set design elements. Display Poster 2.5mm F-LED Ultra Lightweight 11mm G-LUX Mesh 15mm G-LUX Mesh 37.5mm Soft Curtain LED 18mm Versa TUBES LED Video Spheres 10mm are among the products available to enhance a set, embellish a stage, or add decor to a presentation area. Decorative and artistic possibilities are extensive, and components can even be arrayed to form creative screen surfaces.\nInterlocking LED modules are light and portable. Time, cost, and power efficient, they require no convergence and offer flexible color balance. Modules are rugged and adaptable to every production situation, using either ground supported or flown rigging systems.\nWe’ve designed proprietary shipping trusses to make our screens easy to pack and ship cost effectively around the world. The modular design, together with the natural advantages of LED technology, enables quick and efficient set-up and installation.\nSome events need large screen images, but most are suited to projection. Some shows need multiple formats or camera systems and broadcast packages. LSV provides general video and audio equipment, including video projection packages, large format LCD displays in extreme sizes, source equipment, broadcast camera packages, web feeds, microwave paths and satellite links offer multiple application uses. Add audio equipment to complement any system requirements or work with any LED display.\nFor used equipment for sale, please see our For Sale page.","domain":"optical_engineering"}
{"url":"http://wolfgangmerkt.com/publications/simultaneous-scene-reconstruction-and-whole-body-motion-planning","date":"2022-08-07T16:20:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570651.49/warc/CC-MAIN-20220807150925-20220807180925-00036.warc.gz","language_score":0.9094713926315308,"token_count":242,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__177175881","lang":"en","text":"Recent work has demonstrated real-time mapping and reconstruction from dense perception, while motion planning based on distance fields has been shown to achieve fast, collision-free motion synthesis with good convergence properties. However, demonstration of a fully integrated system that can safely re-plan in unknown environments, in the presence of static and dynamic obstacles, has remained an open challenge. In this work, we first study the impact that signed and unsigned distance fields have on optimisation convergence, and the resultant error cost in trajectory optimisation problems in 2D path planning, arm manipulator motion planning, and whole-body loco-manipulation planning. We further analyse the performance of three state-of-the-art approaches to generating distance fields (Voxblox, Fiesta, and GPU-Voxels) for use in realtime environment reconstruction. Finally, we use our findings to construct a practical hybrid mapping and motion planning system which uses GPU-Voxels and GPMP2 to perform receding- horizon whole-body motion planning that can smoothly avoid moving obstacles in 3D space using live sensor data. Our results are validated in simulation and on a real-world Toyota Human Support Robot (HSR).","domain":"optical_engineering"}
{"url":"https://www.contactlensaustralia.com.au/products/bausch-lomb-soflens-daily-disposable","date":"2022-05-28T05:17:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663012542.85/warc/CC-MAIN-20220528031224-20220528061224-00101.warc.gz","language_score":0.8253244161605835,"token_count":284,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__198503729","lang":"en","text":"Bausch + Lomb SofLens Daily Disposable (10 Pieces Per Pack)\nBausch + Lomb SofLens Daily Disposable is daily disposable contact lenses with ComfortMoist Technology to provide unrivaled comfort of daily wear. The lens design is especially thin, allowing for an unusually natural feel on the eye. With the distinctive High Definition Optics design, Soflens daily disposable contact lenses reduce spherical aberration giving you crisp and clear vision especially in low-light condition. Also, the slow-release packaging solution creates a pillow of moisture around the lenses - keeping your eyes comfortable all day through the end of the day.\nKey Features & Benefits:\n- High Definition Optics Technology reduce spherical aberration giving you crisp and clear vision especially during low light condition\n- Designed with ComfortMoist Technology to provide unsurpassed comfort of daily wear.\n- SPH Power Myopia: -0.50D to 6.00D(0.25D steps); -6.50D to -10.00D(0.50D steps)\n- Base Curve 8.6 mm\n- Diameter 14.2mm\n- DK/T: 24\n- Visibility Light blue tinted\n- Daily Wear Schedule, Daily Replacement\n- Packaging of 10 or 30 pieces per pack","domain":"optical_engineering"}
{"url":"http://www.astroimages.com/image_processing.htm","date":"2018-03-25T04:51:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257651820.82/warc/CC-MAIN-20180325044627-20180325064627-00535.warc.gz","language_score":0.9229270815849304,"token_count":1212,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__171389043","lang":"en","text":"Creating striking color CCD images using LRGB composites has become the image processing technique of choice for those who image the night sky. The theory and practice of the LRGB method have been particularly well presented in two publications: The Handbook of Astronomical Image Processing by Richard Berry and James Burnell discusses the theory and The New CCD Astronomy by Ron Wodaski covers the practical aspects. The websites of Robert Gendler and William McLaughlin contain excellent 'how-to' discussions of the LRGB layers method which I found helpful when I began to experiment with the process.\nThe L (Luminance) image is obtained in unfiltered light using a high resolution CCD camera, such as the ST-10E binned at 1X1, to obtain a grayscale image. Deep exposures are required to give a high signal-to-noise ratio (S/N) in the L image. Red, Green and Blue images are obtained using RGB color filters with the camera binned at 2X2. Alternatively, one uses a different CCD camera with large pixels and/or higher sensitivity (such as the FLI-DM). These measures are necessary to overcome the weaker signal of the filtered light which results in low S/N of the RGB images. The four images, L;R;G &B are combined using image processing software. The final LRGB composite reveals the detail of the Luminance image as well as the color information present in the noisier, lower resolution RGB images. This is due to the fact that our visual processes perceive detail almost exclusively in the Brightness or Luminence component not in the Color components of the image. Moreover, the eye ignores noise in the Hue and Saturation (Color) components. Therefore, LRGB compositing produces a color image with a lot of detail...the Holy Grail of astronomical color imaging. The same principal is used in the Component Video feature present in digital television images.\nProcessing the Luminance Images:\nHigh signal-to-noise images are obtained by combining many shorter exposures to yield long total integration times. Typically, 12 ten min. exposures (or 24 five min. exposures) from the ST-10E, binned at 1X1, are combined to give a total integration time of 2 hours. Ten (10s) flat fields are obtained at the conclusion of an imaging session. Sets of 10 to15 raw dark frames at each exposure time are kept as a library which is turned over every few months. On summer evenings, when external water cooling is required to maintain the camera at -20 degrees C, better dark frames are obtained when they are taken immediately after the imaging session. The raw images are processed as follows:\nProcessing the RGB Images:\nRGB exposures are taken with the FLI-DM binned at 1X1(with R:G:B exposure ratios determined from white balancing). Three sets of 5 exposures for each of the three filters are collected. Five flat fields (10s) are obtained with each filter at the conclusion of the imaging session. Sets of 10 dark frames are kept as a library with a 3 month turnover. The raw RGB images are processed as follows:\nCreating the LRGB Image:\nPlease refer to Robert Gendler's article, Color CCD Imaging with Luminance Layering in the July 2001 issue of Sky & Telescope, pp133-136, or to his web site for a nice tutorial on creating LRGB images using Layers in Photoshop.\nAt this point the L image is an 8-bit 2184X1472 TIFF file and the RGB image is an 8-bit 1024X1024 file. Both files are approx 3 mB in size. Before combining the two images into an LRGB image they are aligned using Registar (Auriga Imaging). The L image is used as the reference and the new aligned RGB image (RGB-reg) is saved.\nThe L image and the RGB-reg image are opened in Photoshop with each image enlarged by the same %. The entire L image is cut and pasted onto the RGB image. Don't forget to check No to \"Do you want to save changes?\" before closing the L image! In the Layers Menu the opacity of the top layer (L) is reduced to 50% and precisely aligned (at high image magnification) over the bottom layer (RGB) using the Move tool and/or the arrow keys. After alignment, the opacity is brought back to 100% and the LRGB image is saved a photoshop file (.PSD) with two layers. Since the RGB and L components are in separate layers, they can be manipulated and enhanced independently.\nThis process can be repeated (LLRGB): The opacity of the top layer (L) is kept at 50% and the RGB layer color saturation is increased. The file is then flattened and used as a new, enhanced RGB layer for the next LRGB composite. This technique enriches the color of the new LLRGB composite as well as serving to equalize the contrast between the two layers.\nWhen I'm satisfied with the result I flatten the image and save it as a TIFF file. Grain Surgery for Photoshop (Visual Infinity) is used to eliminate residual noise in the image.\nSTL-11000: Image processing is essentially as above. The camera is binned 1X1 for Luminance and H-alpha exposures. Individual exposures of 10- to 30-minutes are used (the STL-11000M is anti-blooming). These exposures are combined in CCDSoft to yield long effective integration times to reduce the S/N. The camera is binned 2X2 for the RGB data. Generally 3 to 5 individual 10 minute exposures for each color filter are combined. LRGB, LLRGB, (R)RGB or (RB)RGB, and (HA)RGB layering are carried out as described above.","domain":"optical_engineering"}
{"url":"http://www.acreativedesktop.com/basic-camera-help.html","date":"2017-04-29T03:37:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123270.78/warc/CC-MAIN-20170423031203-00607-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.936718225479126,"token_count":961,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__63922417","lang":"en","text":"Here are some of the most frequently asked questions that I have answered from visitors to my Digital Camera Help website.\nWhat is the difference between optical and digital zoom? Optical zoom on a digital camera works the same way a regular 35mm camera's zoom works, the lens physically moves in and out using the optics (lens) to bring the subject closer without sacrificing quality. These moving lenses allows a range in optical magnification that runs anywhere from 2.0x to 10.0x. The higher the optical zoom on a camera, the farther away you can be to take a photograph and still get a clear, close image.\nDigital zoom is a software simulation of optical zoom using no moving parts. Simply put, the camera crops the picture and enlarges it, filling in the extra pixels by guessing what the picture may look like in a process called interpolation. This results in a loss of quality, and is no different than cropping and enlarging an image with editing software. Instead of using the digital zoom on your digital camera you can use editing software on your computer and have more control over cropping and enlarging the picture.\nMany new models of digital cameras are advertising having both optical and digital zoom capabilities. Most of these cameras have a feature that automatically uses digital zoom when you have exceeded the optical zoom limitations. You may choose to disable or shut this feature off so that you know exactly what kind of quality picture you are taking.\nHow much zoom does your digital camera need? Optical zoom ranges between 2x and 10x but most average users find 3x to 6x optical zoom about what they need. Most experts will tell you to buy as much optical zoom as you can afford being careful not to overlook the other features.\nWhat is megapixel? Ok, first let's define pixel. Digital images like our computer screens and digital camera pictures are both made up of grids of dots. The word \"pixel\" is actually short for \"picture element\", which is computer geek talk for one of those millions of dots on your computer screen or digital image. Now, every one of those pixels holds one color and combined with the other millions of single colored dots, forms the picture. Megapixel means a million pixels, so a 3 megapixel digital camera has 3 million pixels. To get the total pixel count, you multiply the horizontal pixels by the vertical pixels. For example, 2590 x 1920 = 5 Megapixels. The more mega pixels your digital camera has, the more information and detail you capture on each picture. Say for example, you a take a picture, once with a 2 megapixel digital camera and once again with a 4 megapixel digital camera. The 2 megapixel digital camera will give you 2 million pieces of information (pixels) and the 4 megapixel digital camera gives you 4 million pieces of information (pixels). If you print both the pictures 4x6, you probably would not be able to tell the difference between the two. Now say you were to crop the pictures or enlarge those pictures to 8x10, you would see a big difference in the two photos. The picture taken by the 4 megapixel digital camera would be a clearer, truer image replication because the picture contains more information than the 2 megapixel digital camera.\nHow many megapixels does my digital camera need? It mostly depends on what you plan on doing with the pictures and images. If you do not often crop your photos and only print 4x6/5x7 size photos, a 2-3 megapixel digital camera will do the trick. If you ever plan to make 8x10 or larger prints at least 4 megapixels would be suggested. Of course most would tell you to buy the highest megapixel digital camera you could afford, but the smart ones would also remind you there are a lot of other of other features besides megapixel you want to look at when making your digital camera purchase.\nWhat is the difference between a Nickel-Metal Hydride battery and a nickel-cadmium battery? A Nickel-Metal Hydride battery (or NiMH) is a rechargeable battery similar in design with a Nickel-Cadmium battery (or Ni-Cd) but instead of using cadmium, which is an environmental hazard, it uses a hydrogen absorbing alloy for anode. A Nickel-Metal Hydride battery can have 2 to 3 times the capacity of an equivalent size NiCd , the memory effect is not as significant and it is less detrimental to the environment compared to a Nickel-Cadmium battery.\nFind more helpful digital camera articles written by this author at Digital Camera Help , including memory cards, WiFi digital cameras, digital camera batteries, lens, and photo editing software.","domain":"optical_engineering"}
{"url":"https://us4.campaign-archive.com/?u=d2ff1575f4039e60dcefd91b8&id=287bf24a92","date":"2019-04-24T19:58:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578656640.56/warc/CC-MAIN-20190424194348-20190424220348-00402.warc.gz","language_score":0.9136943817138672,"token_count":235,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__131798854","lang":"en","text":"|Dear <<Title>> <<Name>>\nAn infinite numbers of colors surround us in our daily lives. Many colorful products which we own are the result of good color management systems. It is a system that use color measurement instruments to quantify and control colors from the raw materials to the finished products. Quantification is the first step to good control. However, have you ever wonder how colors are being measured and quantified?\nWe are able to see color because our eye's retina has three color sensors - red, green and blue. When light enters the eye, it stimulates the retina to produce a sense of sight where the concept of color is form. Using this concept, engineers design colorimeter equipped with receptor that matches the human eye response. As such, colorimeter is able to 'see' color like a human eye. The CIE L*a*b color space is a graphical presentation on how we can express color in numbers.\nCheck this white paper on colorimetry, to get an insight how color is measured.\nWatch out for our next issue as we talk on the common color issues faced in the industry.\nPT Dainan 2 Indonesia","domain":"optical_engineering"}
{"url":"https://www.zakjewelrytools.com/products/hurricane-loupe-10x","date":"2022-05-20T04:38:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662531352.50/warc/CC-MAIN-20220520030533-20220520060533-00474.warc.gz","language_score":0.931340754032135,"token_count":290,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__42106050","lang":"en","text":"Convex lens of the magnifying glass is made of quality glass and has high magnification so that the magnified image of an object can be viewed clearly.\nA coating is formed on each lens of the magnifying glass to eliminate chromatic aberration so that the image is more translucent. Each lens has a diameter of 22mm greater than the lens of magnifying glass of other brands. A viewer may not feel eye fatigue after viewing a gem or jewelry for inspection for a long time. The image is not distorted by the lenses so that he viewer can correctly determine quality of the gem or jewelry. The frame of the magnifying glass is made of aluminum alloy. Surface of the frame is galvanized to have an aesthetic appearance. The handle of the magnifying glass has one knurled cavity for the thumb holding and the other knurled cavity of the index finger holding. The magnifying glass is comprised of three lenses each having a diameter of 22mm and has magnification of 10X.\n- 99% of chromatic aberration of the lens is eliminated.\n- Image is not distorted when viewing at a distance of 80 mm for the lens with a viewing angle of 4mm.\n- Image is not distorted when viewing at a distance of 20 mm for the lens with a viewing angle of 10 mm.\n- Average optical resolution is 80 LP/MM.\n- Wave length of the coating on the lens is 550NM.","domain":"optical_engineering"}
{"url":"https://www.revolution.radio/ajax/viewtopic.php?f=76&t=700&p=1012&amp","date":"2019-06-25T07:44:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999814.77/warc/CC-MAIN-20190625072148-20190625094148-00491.warc.gz","language_score":0.8172029256820679,"token_count":208,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__10355612","lang":"en","text":"March 25, 2018\nTerral’s reply (03.25.2018):Bonnie writes: What is this...and where is it going...???\nThis is clearly a ghosting image of the Sun. Any image containing a bright light source like the Sun, Moon, or light from a lamppost is vulnerable to lens-type anomalies created by the camera optics.\nhttp://www.ishootshows.com/2011/07/13/u ... -ghosting/\nhttp://www.assap.ac.uk/newsite/htmlfile ... 0orbs.html\nUse these tutorials for understanding more about typical lens-flare/ghosting-type anomalies created by camera optics, atmospheric conditions, etc..\nRead this and other related articles in Terral's 2018 Newsletter 13: https://goo.gl/NzbHBr\nGet more information, support the research, and subscribe to the Newsletter and Survival Group Programs at https://www.terral03.com.","domain":"optical_engineering"}
{"url":"http://femtolaserservices.com/equipment/","date":"2022-08-14T14:42:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572043.2/warc/CC-MAIN-20220814143522-20220814173522-00684.warc.gz","language_score":0.7759200930595398,"token_count":166,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__16616888","lang":"en","text":"- FSL is equipped with micro-machining machine with ultrashort pulsed femtosecond laser (20W and 40?J impulse). Our positioning systems allows us to work down to 10?m precision absolute positioning and relative positioning 4?m.\n- Our system allows to manipulate parts in 2.5D with our 3D micromachining head.\n- The advantage of ultrashort pulsed laseris \"no heat-affected zone\", which allows a very precise machining of heat sensitive materials.\n- The ultrashort pulsed femtosecond laser allows micromachining of all materials, both metallic and polymer.\n- We mainly work with Dxf files\n- We micro-machine parts whose dimensions can go up to 400mm by 400mm.","domain":"optical_engineering"}
{"url":"http://www.time-pass.com/shop/product136.html","date":"2019-04-24T22:40:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578663470.91/warc/CC-MAIN-20190424214335-20190425000335-00494.warc.gz","language_score":0.8063637018203735,"token_count":110,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__5103839","lang":"en","text":"Globe, Clear Glass 15\"\nThese newly manufactured globes measure over 18\" in diameter, with a 6\" base, designed to fit all standard vintage gasoline pumps. Included are two 15\" diameter convex glass lenses that fit in the original style welded metal frame. Metal frames are unpainted.\nAlso available in the 13.5 inch size CAPCO frame.\nGlobe, Clear Glass 15\" $215.00 [Order]\nLens only, clear or frosted 15\" no logo $45.00 [Order]","domain":"optical_engineering"}
{"url":"http://broadbandsolar.blogspot.com/2009/11/introducing-broadband-solar.html","date":"2018-07-18T14:18:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590199.42/warc/CC-MAIN-20180718135047-20180718155047-00555.warc.gz","language_score":0.9035977125167847,"token_count":281,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__73369140","lang":"en","text":"Monday, November 23, 2009\nIntroducing Broadband Solar\nBroadband Solar Inc. (BSX) is a California based US corporation formed in 2008 to develop energy efficiency enhancement technology. We design and engineer metallic nanostructures to significantly improve performance of solar, glass and display devices. BSX seek to become the first company in the world to offer a true manufacture scale process that can be tailored for a range of applications.\nPlasmonics, an exploding field of nanoscience, allows BSX to use metallic nanostructures to capture and utilize light over the entire broadband spectrum to optimize optical and electrical functions in various devices.\nTransparent conductive oxide films (TCO) provide or manage critical optical/electrical functions for essential products in may major market sectors including display, low-e glass and solar. Our technology incorporates plasmonics in TCO to create TCO+. TCO+ can add new or improved features to products for significant performance improvements and cost reductions. TCO+ can replace conventional TCO layers in thin film solar cells (a-Si, C-Si, CIGS, CdTe) and many other devices.\nPlasmonic scattering has already been proven in the lab and in commercial facilities on a range of devices and has the potential to increase device performance by providing a means of passive control of the incident wavelength spectrum","domain":"optical_engineering"}
{"url":"https://arts-sciences.und.edu/academics/physics-astrophysics/colloquia/2014-15/zhao.html","date":"2022-11-28T19:06:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710534.53/warc/CC-MAIN-20221128171516-20221128201516-00654.warc.gz","language_score":0.9246305227279663,"token_count":256,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__286990744","lang":"en","text":"Colloquium: Prof. Julia Zhao\nProf. Julia Xiaojun Zhao\nDepartment of Chemistry\nUniversity of North Dakota\nSilica-based Near-Infrared Fluorescent Nanomaterials\nA series of silica-based near-infrared fluorescent (NIRF) nanomaterials have been developed using new approaches. The distinct features of these NIRF nanomaterials are 1) highly intense and photostable fluorescence signals, 2) tunable fluorescence wavelengths, and 3) low toxicity. Several metallic-based sandwich nanostructures were developed with various shapes and sizes for further enhanced fluorescence. The geometric, compositional, and dimensional effects of these NIRF materials on their fluorescence properties were studied, including fluorescence quantum yield, lifetime and wavelengths. These NIRFs were applied to biological applications including sensitive detection and imaging of trace analytes, and photothermal therapies. Nanomaterial-based photothermal therapy has shown great potential for efficient cancer treatment. The developed nanohybrids can generate significant amount of heat upon irradiation in the near infrared (NIR) region for inducing thermal cell death. The nanohybrids showed excellent in vitro biocompatibility as a promising hyperthermia agent.","domain":"optical_engineering"}
{"url":"http://outlive.life/fujiwara-ellipsometry-21/","date":"2019-08-25T10:43:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027323246.35/warc/CC-MAIN-20190825084751-20190825110751-00294.warc.gz","language_score":0.782954216003418,"token_count":733,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__63486985","lang":"en","text":"Handbook of ellipsometry / Harland G. Tompkins and Eugene A. Irene (eds.). . R. M. A. Azzam and N. M. Bashara, Ellipsometry and Polarized Light, North-. Ellipsometry. Principles and Applications. Hiroyuki Fujiwara. National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan. DICENTENNIAL. Spectroscopic Ellipsometry: Principles and Applications. Front Cover · Hiroyuki Fujiwara. John Wiley & Sons, Sep 27, – Technology & Engineering –\n|Country:||United Arab Emirates|\n|Published (Last):||1 July 2009|\n|PDF File Size:||6.30 Mb|\n|ePub File Size:||16.17 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nA comprehensive review for transparent conductive oxides is also provided.\nAccordingly, the detection of such non-uniformities is quite important to achieve higher module efficiencies. H tandem-type solar cell modules.\nSn layers by spectroscopic ellipsometry “, Journal of Applied Physics Hiroyuki Fujiwara Professor Ellpsometry Structure of a- Si: Spectroscopic ellipsometry system developed for the characterization of large-area solar cell modules RE, Dainippon Screen Mfg. For the characterization of solar cells, we are applying an optical measurement technique, called spectroscopic ellipsometrywhich allows high-precision analyses of various solar-cell component layers nondestructively with high speed.\nHowever, in thin-film solar cell modules, all the solar cells formed on the module substrate are connected electrically in series Fig. Selected pages Page 5. In this solar cell, however, the a- Si: Specifically, the ellipsometry technique remains the only method by which the optical constants and the band gap can be determined accurately.\nDescription Spectroscopic ellipsometry has been a key measurement technique in characterizing solar cell component materials and device structures.\nSpectroscopic Ellipsometry: Principles and Applications\nMy library Help Advanced Book Search. Check out the top books of the year on our page Best Books of Semiconductor Lasers Junji Ohtsubo. Common terms and phrases amplitude analysis example analyzer anisotropic anisotropic samples Appl applied atomic becomes bulk layer c-Si calculated characterization coefficient compensator complex refractive index confirmed from Fig coordinates D.\nNobuyuki Matsuki Assistant professor Contact: Gravity, Geoid and Geodynamics Michael G. Spectroscopic Ellipsometry for Photovoltaics: Other editions – View all Spectroscopic Ellipsometry: Nonimaging Fresnel Lenses Ralf Leutz.\nCurrently, to contribute to the solar cell field, our research group is mainly focusing on elilpsometry research topics: Characterization of Materials and Structures.\nSpectroscopic Ellipsometry for Photovoltaics : Hiroyuki Fujiwara :\nTransmission Electron Microscopy Ludwig Reimer. The CO2 Laser W.\nLooking for beautiful books? Fundamental Principles of Ellipsometry. F layers by ellipsometry using glass-side illumination”, Thin Solid Films Collins received the Ph. Account Options Sign in.\nOther books in this series. Available soon, pre-order now. H and CuInGaSe 2are produced widely in the world. Laser Measurement Technology Axel Donges. Photonic Crystals Kuon Inoue. When will my order arrive?","domain":"optical_engineering"}
{"url":"https://catalog.jplilley.com/avcat/ctl3089/index.cfm?manufacturer=epson&product=home-cinema-ls11000-4k","date":"2024-04-16T00:33:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817036.4/warc/CC-MAIN-20240416000407-20240416030407-00733.warc.gz","language_score":0.8126859664916992,"token_count":484,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__95879412","lang":"en","text":"Featuring cutting-edge technology from our flagship Pro Cinema LS12000, the Home Cinema LS11000 uses proprietary 4K PRO-UHD technology and the powerful Epson ZX Picture Processor to produce a full 3,840 x 2,160-pixel, 8.3 mega pixel on-screen image to faithfully display your movies, TV shows and gaming sessions the way they were meant to be seen-with incredible picture sharpness, brightness and color accuracy.\nPerfect for gamers, the Home Cinema LS11000 works alongside the latest generation of consoles and PCs to deliver an incredibly immersive gaming experience up to 4K HDR2 at 120 frames per second and with input lag times below 20 milliseconds, this could be the best gaming projector we've ever made.\nThe Epson Home Cinema LS11000 transforms virtually any room into the ultimate 4K DIY home theater experience.\n- 4K PRO-UHD - Advanced pixel-shifting technology works in parallel with three individual high-definition LCD chips to produce an exceptionally sharp 4K picture without sacrificing picture brightness\n- Precision Shift Glass Plate Technology - Unique digitally controlled Precision Shift Glass Plate precisely refracts pixel-light to display a 3840 x 2160, 8.29-million-pixel image for an exceptionally sharp and clear 4K picture\n- Epson ZX Picture Processor\n- - Our most advanced video processing technology to date, the proprietary 36-bit Epson ZX Picture Processor handles real-time color, contrast, HDR3, frame interpolation and resolution enhancement to faithfully reproduce the source\n- Laser Array Light Source - True multi-array laser diodes produce an ideal light source to power the unique 3-Chip 3LCD Projector Engine for quick turn-on, incredible picture brightness, black contrast and color accuracy\n- True 3-Chip 3LCD Projector Engine\n- - Advanced 3LCD technology uses three individual LCD chips to continuously display 100% of the RGB color signal for every frame. This allows for outstanding color gamut while maintaining excellent brightness\n- High Picture Brightness - Impressive 2,700 lumens of color and 2,700 lumens of white brightness for an exceptional picture in virtually any theater environment – even in rooms with ambient light\n- Home Cinema LS11000 projector\n- Power cord\n- Remote control with (2) AA batteries\n- Quick Setup Guide","domain":"optical_engineering"}
{"url":"https://www.bothwinner.com.hk/product/Digital-laser-range-finder-%2Ch0tG5S-100m-laser-distance-meter-for-sale-44.html","date":"2019-01-18T00:56:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583659654.11/warc/CC-MAIN-20190118005216-20190118030844-00070.warc.gz","language_score":0.7912448048591614,"token_count":294,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__145131873","lang":"en","text":"Digital Laser Range Finder,H0tg5s 100m Laser Distance Meter For Sale , Find Complete Details about Digital Laser Range Finder,H0tg5s 100m Laser Distance Meter For Sale,100m Laser Distance Meter,Digital Laser Range Finder from Laser Rangefinders Supplier or Manufacturer-Shenzhen Jyc Technology Ltd.\nYour order requirement will be proceed according to the details which you communicated with our sales representative!\n1.100% Brand New\n2.LCD with Backlight\n3.Power supply: 1 x 9v Alkaline Battery (not included)\n4.Measure Distance From 1.5 Feet to 60 Feet\n5.Area, volume, addition, subtraction calculation\n6.Frequency: 40kHz (ultrasonic pickup)\n7.Resolution 0.01M or 1/2 Inch\n8.Dimensions: 150 x 70 x 30mm\n9.Weight (without battery): 130g\n1 x Ultrasonic Distance Measurer (battery Not included)\n1 x English Manual\n11.With package weight:183.4g\nOur company was established in 2004 located in the Shenzhen China, with 3000 square meters factory area, over 200 experienced workers. INSGADGETS is our brand name ,It means \"Innovative Gadgets ,Smart Life\". Our main products is Mobile phone accessories,PC notebook accessories ,Consumer accessories and Smart Gadgets!","domain":"optical_engineering"}
{"url":"http://yecourseworkuehy.landscaperben.us/wire-metamaterials-based-microring-resonator.html","date":"2018-10-18T07:46:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511744.53/warc/CC-MAIN-20181018063902-20181018085402-00498.warc.gz","language_score":0.871633768081665,"token_count":975,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__234636085","lang":"en","text":"High quality factor fano-resonant all-dielectric metamaterials field in either the silicon resonator or the environment, cut-wire metamaterials25,26 have been . A metamaterial sensor based on microring resonator operating in wgm is proposed, and the resonance intensity spectrum curves in the frequency range from 185 to 212 . Silicon microring resonators losses in silicon-on-insulator photonic wire based size for optoelectronic devices based on the microring resonator, our goal . This paper gives the different classifications of metamaterials based (long thin wire antenna) shown in fig 3 resonator on ground plane multiband .\nWe show that the dnm sensor based on microring resonator possesses higher sensitivity than the traditional microring sensor since the amplification of evanescent wave, and with the increase of metamaterial layer thickness, the sensitivity will be increased greatly. Wire metamaterials-based microring resonator in subwavelength structure ahmed a ali, mohanned j and a h al-janabi abstract in this work we present the possibility of building a subwavelength microring resonator by manipulating the unite cell in the wire metamaterials. Tunable metamaterial design composed of triangular split ring resonator and wire three types of new metamaterials,.\nWe report a novel hybrid laser based on a silicon-wire external cavity filter we characterize the hybrid silicon laser from the viewpoint of high output extraction efficiency and temperature control free operation with a silicon microring resonator. A metamaterial sensor based on microring resonator operating in wgm is proposed, and the resonance intensity spectrum curves in the frequency range from 185 to 212 thz were studied under different . Multimode-interference waveguide crossing coupled microring-resonator-based switch nodes for photonic networks-on-chip fang xu and andrew w poon. 2254 ieee sensors journal, vol 11, no 10, october 2011 double negative metamaterial sensor based on microring resonator jing jing yang, ming huang, and jun sun abstract—metamaterials are artificial media structured on a for biosensing.\nDouble negative metamaterial sensor based on microring resonator abstract: metamaterials are artificial media structured on a size scale smaller than the wavelength of external stimuli, and may provide novel tools to significantly enhance the sensitivity and resolution of the sensors. Micron silicon photonic wire waveguides: the small dimensions silicon microring resonators wim bogaerts, a generic ring resonator con-. The design of two silicon microring resonator-based photonic transmitters, which were fabricated in the 130-nm soi process and wire bonded with drivers in the 65-nm cmos technology, is presented.\n2254 ieee sensors journal, vol 11, no 10, october 2011 double negative metamaterial sensor based on microring resonator jing jing yang, ming huang, and jun sun. Birck nanotechnology center, photonic wire components in silicon-on-insulator,group iv photonics, belgium, p189-191 (2005) microring resonator based on slot . Interaction between graphene and metamaterials: split rings vs wire pairs in a wire-pair e n economou, and c m soukoulis, “low loss metamaterials based on.\nCompact silicon hybrid plasmonic microring resonator-based polarization demultiplexer yin xu and jinbiao xiao microring and silicon wire are similar, while those . Silicon photonic transceiver circuits with microring resonator bias-based wavelength stabilization student member, ieee, binhao wang, geng tang with a wire .\nSilicon photonic transceiver circuits with microring resonator bias-based wavelength stabilization in 65 nm cmos abstract: photonic interconnects are a promising technology to meet the bandwidth demands of next-generation high-performance computing systems. The architecture of a very compact microring resonator-based sensor in silicon on insulator (soi) also indicated as silicon photonic wire), as in figure 1(b), and . Sensor based on microring resonator possesses higher sensitivity than the traditional microring sensor since the amplification of evanescent wave, and with the incr ease of metamaterial layer. A microring resonator based negative permeability metamaterial sensor metamaterials are artificial multifunctional materials that acquire their material .","domain":"optical_engineering"}
{"url":"https://edenindoorgardens.com.au/blogs/articles/the-effect-of-light-spectrum-on-plant-development-part-1","date":"2024-02-22T18:12:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473824.13/warc/CC-MAIN-20240222161802-20240222191802-00831.warc.gz","language_score":0.9442276358604431,"token_count":977,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__195296646","lang":"en","text":"By CANNA Research\nEveryone knows that a plant needs light to grow by means of photosynthesis, a process that involves energy fixation and sugar production. But in addition to providing energy, the light also plays a key role in many other plant processes, such as photomorphogenesis and photoperiodism. All these processes are influenced by the light spectrum, which is the distribution of the light across the electromagnetic spectrum. In order to explain a plant’s different responses to light, we first need to think about the phenomenon of light itself.\nPrinciple of light and its spectrum\nLight is a form of radiation, which takes the form of electromagnetic waves that pass through air or vacuums. It can, therefore, be described in terms of three physical properties: intensity (or amplitude), frequency (or wavelength) and direction of vibration (polarization). All possible forms of electromagnetic radiation can be described by placing them in the electromagnetic spectrum, see figure 1.\nWhen we describe the electromagnetic or light spectrum, it’s better to talk about wavelength than about colour. That’s because visible light for humans comprises only a small portion of the light spectrum as a whole – namely the range of wavelengths between 400 and 700 nanometres (nm, which is 10-9 m).\nFigure 1: Light, in the form of electromagnetic waves, is described by the electromagnetic spectrum. The most important quality of light for plants is its wavelength or energy content; the shorter the wavelength the higher the energy content.\nAs you can see from figure 1, this is a very small range. In fact, it is less than 1 percent of the total spectrum. Photosynthetically active radiation (PAR), or photosynthetic photon flux density (PPFD), is the range of light that can be used by plants to photosynthesise. However, because the PPFD is a summation of all photons in the 400-700nm range, two very different spectral distributions can have the same PPFD. This means that there is no one-to-one relationship between PPFD and spectral distribution. It also means that when we compare light sources, we need to consider spectral distribution data as well as PPFD.\nPPFD light is expressed as μmol/m2/s and tells us how many light photons will reach a predetermined surface area (m2) in a specified length of time (a second). To illustrate: most plants need a minimum of 30 – 50 μmol/m2/s PPFD to stay alive.\nHow a plant senses light\nAs well as providing the energy for photosynthesis, the light also acts as an information source for plants. Different light spectra give the plant an indication of its environment and therefore how it should survive, and hopefully thrive and reproduce. In this sense, the composition of the light is as important as the total quantity of light used for photosynthesis. The light spectrum in the range of 300 to 800 nm causes a developmental response in the plant. Additionally, UV and infrared (IR) light are known to play a role in plant morphogenesis.\nA plant gains information from the light that reaches it by means of special pigments, called photoreceptors. These photoreceptors are sensitive to different wavelengths of the light spectrum.\nFigure 2: a plant gains information from light via three special photoreceptors: phototropin (phot), cryptochromes (cry) and phytochromes (PHY). The first two are active in UV and blue light, while phytochromes respond to red and far-red light.\nThere are three groups of photoreceptors, see figure 2:\nThe first two photoreceptors – phototropin and cryptochromes – are active in the lower range of wavelengths (UV (A) and blue). These two receptors obviously have different functions. Phototropins are responsible for phototropism or plant movement, and the movement of chloroplasts inside the cell in response to the quantity of light. Phototropins are what cause stems to bend towards light and stomata to open.\nCryptochromes are pigments which sense the direction of the light. The inhibition of stem elongation is governed by cryptochromes as well as stomatal functioning, the synthesis of pigments and the tracking of the sun by the plants' leaves. The other photoreceptors – phytochromes – are sensitive to red and far-red light. There are two forms of phytochrome, Pfr and Pr, which interact. Phytochromes have the biggest influence on photomorphogenesis. Stem elongation, shade avoidance, chlorophyll synthesis and the flowering response are all functions typical controlled by phytochrome.","domain":"optical_engineering"}
{"url":"https://another.com.au/products/hp-reverb-g2-dedicated-head-mounted-display-550-g-black","date":"2022-05-17T11:43:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662517245.1/warc/CC-MAIN-20220517095022-20220517125022-00737.warc.gz","language_score":0.8892219662666321,"token_count":130,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__98042984","lang":"en","text":"Equipped with industry-leading lenses and speakers from Valve, our HMD provides high quality resolution and fully immersive spatial audio. With mura-free, 2160 x 2160 LCD panels per eye, you can now see more detail than ever before.\nWith four cameras built into the headset and no external sensors required\nCompatibility across both SteamVR and Windows Mixed Reality, seamless access to everything VR is now within reach.\nErgonomically designed for comfort and optimized for compatibility\nYou Save $50.00 (4%)","domain":"optical_engineering"}
{"url":"http://engineeringworks.tamu.edu/2004/06/","date":"2015-12-01T02:04:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398464396.48/warc/CC-MAIN-20151124205424-00054-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.9218240976333618,"token_count":373,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__45054172","lang":"en","text":"We’re going to shine some light on some bright bits of high technology: LEDs — light-emitting diodes. Today on Engineering Works!\nA few years ago, only scientists and engineers knew about light-emitting diodes. Now you see them everywhere — tiny flashlights, instrument lights, TV remote controls, truck and bus tail-lights, traffic lights. Even stadium TV screens – all lit up by LEDs.\nLEDs are one of an array of tiny electronic devices known as semiconductors, made from silicon. Unless you’ve been living in a cave, you already know about transistors and microchips. They’re semiconductors. Normal silicon doesn’t conduct, or carry, electricity. It’s an insulator – a non-conductor. If you add tiny amounts of different stuff to silicon, it starts conducting electricity. Not a lot, but it does conduct it. Different things happen depending on what you added to the silicon. Now you’ve got a semiconductor.\nThe simplest semiconductors are diodes. Depending on how they’re made, some diodes carry current in one direction. Some in the other. Light-emitting diodes are like other diodes, except that when an electric current hits them, they light up instead of just carrying electricity. But unlike light bulbs, they don’t get hot. And they’re really small, about the size of your little fingernail. And for their size, light-emitting diodes are really bright. This makes them handy for all the things we were just talking about.\nIt’s time to light up our diode somewhere else. We’ll talk with you later.","domain":"optical_engineering"}
{"url":"http://publicgunandpawn.com/razar-future-optics/5297","date":"2020-07-16T15:38:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657172545.84/warc/CC-MAIN-20200716153247-20200716183247-00006.warc.gz","language_score":0.9550043940544128,"token_count":396,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__106448658","lang":"en","text":"Big things are happening in the world of scopes and optics, and a company called Sandia National Labs is behind it. In development for nearly a decade now, the company has been working on a push-button scope, using a series of flexible polymer lenses, to replicate the human eye. This will allow a soldier to change magnification without changing hand position, or looking away from a target.\n“The impetus behind the idea of push-button zoom is you can acquire what you’re interested in at low magnification and, without getting lost, zoom in for more clarity,” said Brett Bagwell, an optical engineer who is the project leader at Sandia labs, and former Special Forces in the US Army.\nIt’s called the Rapid Adaptive Zoom for Assault Rifles, or RAZAR, and its double lenses have two components. The first is a tough membrane that is used to encapsulate the second component, a liquid polymer held within it. Each of the two lenses sits inside of a ring used to compress the polymer, which increases or decreases the curvature of the sight elements, and thus the focus. The rings themselves are operated by ultrasonic piezoelectric motors, which are quite similar to those used in the auto-focus on most cameras.\n“The guys picked it up and when they pushed the button and it zoomed, and then instantly it zoomed back out, they were like kids at Christmas. There was this look of astonishment and pleasure,” said the former Green Beret sergeant. “That’s very gratifying. Here’s this grizzled veteran looking at me like I’ve just created magic.”\nFor much more information on this game changing technology, go check out the information page at Sandia Labs. Of note, the science behind RAZAR is not only of use in the military, but nearly all optics applications.","domain":"optical_engineering"}
{"url":"https://www.deix.ai/en/case-studies/data-driven-control-system","date":"2023-03-26T14:32:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945473.69/warc/CC-MAIN-20230326142035-20230326172035-00180.warc.gz","language_score":0.8594748973846436,"token_count":159,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__30581008","lang":"en","text":"Data-driven Control System\nAdaptive optics is a technology that allows a deformable mirror to be used to correct optical distortion due to atmospheric turbulence in real time and is of critical importance in ground-based telescopes.\nMitigating atmospheric turbulence requires the design of a decentralized system to control the deformation of the telescope mirror, ensuring stability and performance in terms of response time and accuracy.\nWe applied a data-driven approach that uses frequency profiles of turbulence and vibration directly obtained from experimental data. In this way it is possible to obtain a real-time response prediction and optimize the telescope mirror control system.\nResults and Benefits\nThe solution allows a clear improvement of the telescope performance, thanks to the real-time stabilization of the mirrors even in adverse weather conditions.","domain":"optical_engineering"}
{"url":"https://news.asu.edu/content/nasa-chooses-asu-design-operate-camera-system-mars-2020-mission","date":"2024-02-26T15:06:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474660.32/warc/CC-MAIN-20240226130305-20240226160305-00647.warc.gz","language_score":0.916573703289032,"token_count":997,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__65866724","lang":"en","text":"NASA chooses ASU to design, operate camera system for Mars 2020 mission\nArizona State University has been selected by NASA to design, deliver and oversee a pair of color panoramic zoom cameras on the next rover mission to be launched to the surface of Mars in 2020. Jim Bell, a professor in ASU’s School of Earth and Space Exploration, will be the principal investigator overseeing the Mastcam-Z imaging investigation.\nNASA has selected the instruments that will be carried aboard the Mars 2020 mission, a roving laboratory based on the highly successful Curiosity rover. The instruments were competitively selected from 58 proposals submitted, two times the average number of proposals submitted for instrument competitions in the recent past and an indicator of the extraordinary interest in exploration of the Red Planet.\nThe Mars 2020 rover will be designed to seek signs of past life on Mars, to collect and store samples that could be returned to Earth in the future, and to test new technology to benefit future robotic and human exploration of Mars. The instruments onboard will help to build upon the many discoveries from the Curiosity Mars rover and the two Mars Exploration Rovers (Spirit and Opportunity), and will be the critical next step in NASA’s strategic program of exploring the Red Planet.\nBell will oversee an international science team responsible for creating and operating the cameras on NASA’s next, yet-to-be-named, Mars rover. Bell has been responsible for the science imaging systems onboard the NASA Mars Exploration Rovers Spirit and Opportunity, and is the deputy P.I. of the color cameras on the Curiosity rover.\n“These cameras will be the main eyes of NASA’s next rover,” says Bell.\nThe imaging system ASU will deliver is a pair of multispectral, stereoscopic cameras that will be an enhanced descendant of Curiosity’s successful imaging instrument called Mastcam. Mastcam-Z will be comprised of two zoom camera heads to be mounted on the rover’s remote sensing mast. This matched pair of zoom cameras will each provide broad-band red/green/blue (RGB) color imaging, as well as narrow-band visible to short-wave near-infrared multispectral capability.\nMastcam-Z will have all of the capabilities of Curiosity’s imaging instrument, but is augmented by a 3.6:1 zoom feature capable of resolving features about 1 millimeter in size in the near field, and about 3-4 centimeters in size at 100 meter distance.\n“The cameras that we will build and use on Mars are based on Curiosity’s cameras but with enhanced capabilities,” explains Bell. “Specifically, we will be able to use our zoom capability to allow us to play a much more significant role in rover driving and target selection.”\nMastcam-Z’s imaging will permit the science team to piece together the geologic history of the site – the stratigraphy of rock outcrops and the regolith, as well as to constrain the types of rocks present. The cameras also will document dynamic processes and events via video (such as dust devils, cloud motions and astronomical phenomena, as well as activities related to driving, sampling and caching), observe the atmosphere and contribute to rover navigation and target selection for investigations by the coring/caching system, as well as other instruments.\nBell’s large international science team will include Mark Robinson, School of Earth and Space Exploration professor and principal investigator for the imaging system on board NASA’s Lunar Reconnaissance Orbiter Camera. Robinson brings significant experience in planetary geology and spacecraft imaging, and will be responsible for characterizing the regolith from Mastcam‐Z images and assisting with camera calibration and mission operations.\nIn addition, Bell intends to involve a significant number of staff, undergraduate students and graduate students in the mission. For example, SESE Research Scientist Craig Hardgrove and Technology Support Analyst Austin Godber are slated to play leading roles in the design, testing and operations of the Mastcam-Z investigation.\nMastcam-Z remote instrument operations will be directed from the ASU Science Operations Center (SOC), housed in the Mission Operations Center located in the Interdisciplinary Science and Technology Building IV on the ASU campus. ASU faculty, staff and students will work closely with mission engineering leads at NASA's Jet Propulsion Laboratory in Pasadena, California.\n“We are very excited about playing such a critical role in NASA’s next Mars rover. And we are especially excited because this rover will be the first step in NASA’s Mars rover sample return mission,” says Bell. “We are eager to play a role in the selection of the first Martian samples for eventual return to Earth.”\nThe School of Earth and Space Exploration is an academic unit in ASU's College of Liberal Arts and Sciences.","domain":"optical_engineering"}
{"url":"https://europe.bloombiz.com/default.cgi/action/viewcompanies/Suppliers-Factories-Manufacturers/led+module/","date":"2020-12-05T15:09:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141747887.95/warc/CC-MAIN-20201205135106-20201205165106-00048.warc.gz","language_score":0.8994219303131104,"token_count":2623,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__118301355","lang":"en","text":"||Company - Description\n|Top Premium Companies|\n|Shenzhen Kingesion Electronic Co., Ltd.|\nShenzhen Kingesion Electronic Co. Ltd. is a high-tech enterprise integrated of LED R&D, design, production and trade from 2005. Operating with Chongqing Haihong Technology Company, we develop high-power radiating and radiating light source module...\nWe are Supplier and Seller of: led bulb, led ceiling light, led display screen, led down light, led high bay, led indoor outdoor lighting, led module, led spotlight, led strip light.\nMember since 18 April, 2012, China - Guangdong\n|Jjw Group Limited|\nJJW GROUP LIMITED is a intergrated company which specialized in outdoor and indoor lighting research and development, production, sales and engineering design. With the develpoment of LED lights, the great needs of our customers, we offer new...\nWe are Supplier and Seller of: led bulb, spotlight, ceiling light, strip lights, christmas string light, display screen, led tube, led module, panel light.\nMember since 20 September, 2012, China - Guangdong\n|Shenzhen Topled Optotech Co., Ltd.|\nOur company locates at Hangcheng industry area of Baoan region in shenzhen city of china. The factory areas is about 14,000sq.m. and the registered capital totaling 21 million (RMB). The entire company owns more than 400 peoples compose of senior eng...\nWe are Supplier and Seller of: indoor led display, led flexible strips, led lighting, led modules, led panel lighting, led rigid strips, led sign, led tube, outdoor led display.\nMember since 30 July, 2009, China - Guangdong\n|Browse by Industry Classification|\nCompanies, Importers & Exporters Buy & Sell Trade Leads Products On Sale\n|Ledke Technology Co., Ltd|\nLEDKE Technology Co., Ltd. was founded by a team with excellent LEDs Technology & knowledge background in year 2002. Since then, it devotes itself to R&D and manufacture of LED products. Along with the Philosophy of “Illuminate our world with Green...\nWe are Supplier and Seller of: led fluorescent tube, led flexible strip, led rigid strip, led spot light, led par lamp, led down light, led bulb lamp, led module, led street light.\nMember since 21 September, 2009, China - Guangdong\n|No Logo||Hi-Team LED Accessories Factory|\nHi-Team LED Accessories Factory mainly produces aluminum and stainless steel parts for led/lighting. Our Main products are led sign module housing, led lighing fixture, driver case, strip clip, led bar clamp, led bar stopper, etc. We have ove...\nWe are Supplier and Seller of: led module frame, waterproof led module housing, high power led box, led sign housing, led lighting fixture, strip clip, mounting holder, metal parts, aluminum and stainless steel.\nMember since 24 February, 2012, China - Guangdong\n|No Logo||Maxtop Technology Industrial Co., Ltd.|\nManufacturer and supplier of high Quality LED Modules & Panels in China. Since founded in 2011, MAXTOP has beening engaged in R&D, manufacturing and marketing of LED Modules & Panels industry, all of them are widely used in commercial (Such a...\nWe are Supplier and Seller of: led display, led display screen, led sign, led scrolling board, led module, led panel, led screen, led display module, led display panel.\nMember since 6 July, 2016, China - Fujian\nWholesale - retail lighting (chandeliers, lamps, spotlights, wall). Spotlights more\nthan 1 000 species. Spotlight, landscape\nlighting. LED. LED products at the lowest\nprices in the city of Kazan: LED strip 3528-\n60, 5050-60, RG...\nWe are Supplier and Seller of: led, chandeliers, spotlights, rgb, led modules, power supplies, controllers, bulbs, dimmers.\nMember since 27 December, 2012, Russia - Tatarstan\n|Ub Art Co., Ltd.|\nWe are engaged in trading and distributor of made by manufacture of medical device of insulin syringe and pen needle and order made LED signe and PE protect film and PVC stabilizer in the world. We have been file up reliable fame as a distributor ...\nWe are Supplier and Seller of: insulin syringe, pen needle, dental needle, led back linght unit, led module, lgplight guide plate, pe adhesive protect film, pvc stabilizer, methyl tin mercaptide.\nMember since 29 February, 2012, Korea, South - Soul-t'ukpyolsi\n|Huacai(Shenzen) Opto-electronics Co., Ltd|\nHuacai (Shenzen) Opto-electronics Co., Ltd, founded in 2007 and based on the LED lighting source, is a large integrated company which specializes in R&D and manufacture of LED lighting application\nThe main products are: SMD LED Flexible Strip Lig...\nWe are Supplier and Seller of: led strip, led module, led tube, rigid led strip, rigid led bar, cabinet bar, led strip light, led strips, strip led.\nMember since 20 July, 2011, China - Guangdong\n|No Logo||Coming Bright Tech Co., Limited|\nComing Bright Tech Co., Limited is a professional manufacturer specialized in manufactureing, developing and selling LED lights and LED appliance in Shenzhen China, with hard work and innovation these years. Coming Bright pays much attention to the r...\nWe are Supplier and Seller of: led tube, led bulb, led strip, led module, led downlight, led controller, led power supply, smd led, high power led.\nMember since 23 May, 2012, China - Guangdong\n|Shenzhen Aidisen Optoelecronic Co., Ltd.|\nShenzhen Aidisen Optoelectronic Co.,ltd is an integrated LED lighting manufacturer\nwhich specializes in R&D， production and marketing of the LED lighting products. It covers an area of morethan 2500 square meters, which is located in the s...\nWe are Supplier and Seller of: led module, led bare light, led flashing waterproof light, led pixel light, power supply, led controller, superflux led module series, led strip light, fullcolor strawhat led.\nMember since 18 May, 2010, China - Guangdong\n|No Logo||Campbell Lighting|\nCampbell Lighting Manufactures VERY High Quality HID Lighting Fixtures, and import and Sell all LED Products including Soft Neon Flex, LED Modules, LED Light Bulbs, LED Strip Lighting, PVC LED Strips available in 12, 24, 48, 72, 96, and 192 CM/LED si...\nWe are Supplier and Seller of: ccfl lamps, cfl lamps, flex led, hid fixtures, led bulbs, led modules, led neon, light fixtures, soft neon.\nMember since 30 May, 2007, US - Arkansas\n|Seaworth Technology Industry Limited|\nSeaworth technology industry limited\nis a professional led light manufacturer\nin china. we are able to offer a variety\nof led lighting fixtures.,such as indoor\nled difplays, outdoor led displays, led\nfluorescent tubes, led bu...\nWe are Supplier and Seller of: led bulbs, led tubes, led spotlights, led ceiling lights, led power supplier, led module, led flexible strip, led fluorescent tubes, led wall washer.\nMember since 23 April, 2011, China - Guangdong\n|Guangzhou CHARMLED Lighting Technology Co., Ltd.|\nGuangzhou CharmLED Lighting Technology Co., Ltd, established in 2003, is a high-tech enterprise specialized in research, producing, global sales and service of LED Lighting products. We provide a wide range of LED products, including LED panel lights...\nWe are Supplier and Seller of: led lamps, led lighting, led panel, led bulb, led module, led flexible strip, led wall washer, led street light, led spot.\nMember since 27 July, 2012, China - Guangdong\n|Primary Business Type(s): Manufacturer|\nBuy & Sell Offers: 0 - No Current Trade Leads\nProducts: 0 - No Current Products\n|Xiamen Vigorous Optoelectronic Co., Ltd.|\nXiamen Vigorous Optoelectronic Co.,Ltd., is a professional hi-tech enterprise specialized in the research, development, manufacturing, and marketing of LED illumination products. With strict quality control, full technology support, newest technology...\nWe are Supplier and Seller of: solar led light, led tube, down light, led bulb, panel light, led module, led strip, led ceiling light, mr16 gu10.\nMember since 2 August, 2012, China - Fujian\n|Yayuhong Optoelectronic & Technology Co., Ltd.|\nYayuhong Optoelectronic&Technology Co.,Ltd is a high-tech enterprise, dedicated to the design, manufacture and sales of the world class AD lighting source and LED lighting source. We passed ISO9001:2000 quality systems, ISO14001:2004 environment syst...\nWe are Supplier and Seller of: led modules, led module, led strip, led injection module, outdoor led module, samsung led module, smd led module, power led module, high power led module.\nMember since 21 July, 2015, China - Guangdong\n|Shenzhen Clen Optoelectronics Co., Ltd|\nShenzhen Clen Optoelectronics Co., Ltd. (Clen) is a professional manufacturer which engaged in developing, manufacturing and marketing LED lighting products. Its high productive assembly lines have abilities to produce all types of LEDs series produc...\nWe are Supplier and Seller of: cob led downlight, led spotlight, led light bulb, led down lamp, led tube light, digital led strip, pixel led module, cob light, wifi control color changing led lighting bulb.\nMember since 28 April, 2014, China - Guangdong\nOnumen technology is the development, production, sales and service into a professional flexible LED curtain screen production of the pioneers and providers. We are committed to the new LED product development and production, and continuous improveme...\nWe are Supplier and Seller of: led screens, led flexible screens, led curtain screens, dmx decoders, dmx drivers, dmx controllers, smd pixel led module lights, auto-curl flexible led curtain screens, curtain screens.\nMember since 1 April, 2011, China - Guangdong\n|Shenzhen Hiboled Photoelectircity Co., Ltd|\nShenzhen Hiboled Photoelectricity Co.,Ltd. is a professional Led display & light manufacturer which integrated R&D,design and producing. Moreover, in order to meet the different market demands, we also provide the OEM, ODM services. All our p...\nWe are Supplier and Seller of: outdoor full color led display, indoor full color led display, led screen, led board, led modules, led panel, led display for advertising, led sign, digital display.\nMember since 20 August, 2010, China - Guangdong\n|Xi'an SLAN Optoelectronic Technology Co. ,Ltd.|\nXi'an SLAN Optoelectronic Technology Co. Ltd is a professional manufacturer specializing in the R&D, production and export of indoor and outdoor high power LED lamps. Our products include LED modules, LED down lights, LED bulbs, LED Flood lights, LED...\nWe are Supplier and Seller of: led bulb lamp, led flood light, led ceiling lamp, led downlight, led track lamp, led street light, led tube lamp, led module, led strip lamp.\nMember since 21 March, 2014, China - Shaanxi\n| Next Page >> 1 2 3 4 5|\nEuropean Machinery & Electronics - Bulbs & Tubes Companies\nEuropean Machinery & Electronics - Outdoor Lightings Companies\nEuropean Machinery & Electronics - Industrial Lightings Companies\nEuropean Machinery & Electronics - Residential Lightings Companies\nEuropean Automobile - Lamps, Flashers & Fuses Companies\n|Related Site Sections:|","domain":"optical_engineering"}
{"url":"http://www.dewalist.co.in/21/posts/6-For-sale/58-Other-sale/896520-Special-Cheating-Contact-Lenses-for-Cheating-Cards-in-Faridabad.html","date":"2019-05-25T23:42:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232258453.85/warc/CC-MAIN-20190525224929-20190526010929-00281.warc.gz","language_score":0.9177656173706055,"token_count":155,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__112253586","lang":"en","text":"X Spy Cards store has launched the special pair of cheating contact lenses for all types of spy cheating playing cards in Faridabad. These lenses are made of HEMA Polymacon material rated as best material to make contact lenses. These lenses are very soft and easy to wear on eyes. User can easily use these lenses for more than 7 hours without causing any harm to the eyes. These lenses can see any type of secret marking made with invisible ink or luminous printing technology. Use these cards and lenses in combination to win any card game. Get more details at:\nFor any query contact us\nContact Person: Mr. H. R. Chauhan\nMobile No: +91-9540045644\nIt is ok to contact this poster with commercial interests.","domain":"optical_engineering"}
{"url":"https://mistergadgeteer.com/product/smart-sensor-night-light-surveillance-camera-hd/","date":"2023-09-25T17:11:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233509023.57/warc/CC-MAIN-20230925151539-20230925181539-00856.warc.gz","language_score":0.7779857516288757,"token_count":268,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__80504664","lang":"en","text":"1. When a moving object is detected in the camera within the recording range, the camera will start recording.\n2. Using a high-definition lens, good light transmission, true color reproduction, effectively reducing image distortion.\n3. High-definition video, clear and smooth, high-definition picture quality for you to convey a good life.\n4. The three-color light file is adjustable, high brightness, delicate, not dazzling, and has eye protection.\n5. It can be placed directly on the desktop, hung on the wall, or pasted on metal, which is very simple and convenient. Not only camera actions, but also night lights.\nThe night light can be controlled by App: Little Star\nLens angle: 110-degree wide-angle\nVideo format: AVI 1920*1080p\nPicture pixels: JPEG 4032*3024\nBattery: 1000 mAh\nBattery life: about 450 minutes\nTF memory: maximum support 32GB\nPIR sensing angle: 120o\nPIR sensing distance: 1-5 meters, camera HD\nProduct name: Camera recording\nMotion detection: support\n1 x base\n1 x data cable\n1 x manual","domain":"optical_engineering"}
{"url":"https://www.marbk-94r.win/wiki/ISSN_(identifier)","date":"2020-10-21T01:40:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107874637.23/warc/CC-MAIN-20201021010156-20201021040156-00650.warc.gz","language_score":0.8690497875213623,"token_count":742,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__190676596","lang":"en","text":"File:Schematic diagram of the human eye.png\nSchematic_diagram_of_the_human_eye.png (600 × 550 pixels, file size: 54 KB, MIME type: image/png)\nSchematic diagram of the human eye\n(created with Sodipodi)\n(Reusing this file)\n|This file is a candidate to be copied to Wikimedia Commons.\nAny user may perform this transfer; refer to Wikipedia:Moving files to Commons for details.\n|Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. Subject to disclaimers.\nGFDL with disclaimers GNU Free Documentation License with disclaimers\n| ||This work is licensed under the Creative Commons Attribution-ShareAlike 3.0 License. |\nThis licensing tag was added to this file as part of the GFDL licensing update.\nCc-by-sa-3.0 Attribution-ShareAlike 3.0\n== Eye Anatomy ==A guide to the many parts of the human eye and how they function.\nThe ability to see is dependent on the actions of several structures in and around the eyeball. The graphic below lists many of the essential components of the eye's optical system.\nWhen you look at an object, light rays are reflected from the object to the cornea, which is where the miracle begins. The light rays are bent, refracted and focused by the cornea, lens, and vitreous. The lens' job is to make sure the rays come to a sharp focus on the retina. The resulting image on the retina is upside-down. Here at the retina, the light rays are converted to electrical impulses which are then transmitted through the optic nerve, to the brain, where the image is translated and perceived in an upright position!\nThink of the eye as a camera. A camera needs a lens and a film to produce an image. In the same way, the eyeball needs a lens (cornea, crystalline lens, vitreous) to refract, or focus the light and a film (retina) on which to focus the rays. If any one or more of these components is not functioning correctly, the result is a poor picture. The retina represents the film in our camera. It captures the image and sends it to the brain to be developed. The macula is the highly sensitive area of the retina. The macula is responsible for our critical focusing vision. It is the part of the retina most used. We use our macula to read or to stare intently at an object.\nClick on a date/time to view the file as it appeared at that time.\n|current||12:00, 5 June 2006||600 × 550 (54 KB)||Eliashc||optimized using optipng.|\n|05:37, 14 March 2005||600 × 550 (73 KB)||Delta G||Schematic diagram of the human eye(zonule fibers -> zonular fibers(more common))|\n|04:58, 14 March 2005||600 × 550 (72 KB)||Delta G||Schematic diagram of the human eye(smaller, vitreous fluid -> vitreous humor)|\n|04:36, 14 March 2005||866 × 793 (115 KB)||Delta G||Schematic diagram of the human eye|","domain":"optical_engineering"}
{"url":"http://wrhpc.org.nz/archive/display_one_mus.php?g1=1&g2=395&g3=&g4=&g5=&g6=&g7=&g8=menu_mus.php&g9=0&g10=&g11=&g12=&g13=&g14=0&g15=&g16=&g17=&g18=&g19=&g20=&g21=&g22=&g23=&g24=&g25=","date":"2019-05-20T00:43:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255251.1/warc/CC-MAIN-20190520001706-20190520023706-00009.warc.gz","language_score":0.9523153901100159,"token_count":132,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__70125260","lang":"en","text":"Photographic equipment – light meters.\nCameras tended to come in two broad categories: those with a fixed lens and limited ability to make adjustments, and those which allowed many adjustments of shutter speed, focal length etc. These adjustments had to be made manually.\nIn order to get the correct setting for the brilliance of the light, photographers carried a light meter which measured the brilliance and gave a guide what to set the shutter speed and lens aperture (f stop) to for optimum exposure for the film speed.\nThe film speed (sensitivity) and the brilliance of the subject and the shutter speed were all combined to consider the aperture of the lens.","domain":"optical_engineering"}
{"url":"https://www.walightings.com/product/dbf-2w-4w-6w-8w-10w-12w-led-wall-light-outdoor-waterproof-modern-nordic-style-indoor-wall-lamps-living-room-porch-garden-lamp/","date":"2023-03-23T21:32:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945183.40/warc/CC-MAIN-20230323194025-20230323224025-00285.warc.gz","language_score":0.8071065545082092,"token_count":478,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__240241189","lang":"en","text":"Color: Black / White\nProduct Name: LED WALL Light\nOutput power: 2W 4W 6W 8W 10W 12W\nLight source: LED Chip\nColor temperature:6000-6500K (Cold White)/3000-3500K(Warm White)\nInput voltage:AC 85-265V\nSize: As size sheet\nInstallation type: Wall Mounted\nLED work temperature: -20 C ~ +45 C\nLifespan: more than 30,000 hours\n➤Modern Simple Design\nHigh-Quality Die-cast Aluminum Alloy with no rust, Surface frosted lacquer paint treatment, not easy to oxidation, don’t fade. LED power saving and durable, which with up to 30,000h of life.\nUnique waterproof design can make sure good waterproof property, can withstand adverse weather conditions and usage environments. Both indoor and outdoor are available, can provide you with better security.\n➤Up & Down Light Effect\nUp and down glowing, , bright and soft uniform light, no flash, no glare, eye protection; intervals of the lamp beads, make wall sconce lights produced a perfect superposition light effect, increase lamp beads efficient radiating, reduce light failure.\n➤Intelligent LED Light Source\nInput Voltage: AC86V-265V; Intelligent LED lamp beads, more extensive light, low power consumption; High-quality LED driver, built-in intelligent IC chip, saving energy and durable.\nIndoor or outdoor lighting, perfect for garden, bathroom, bedroom, corridor, living room, porch, kitchen, hallway, stairs and other different places.\n1 * LED Wall Lamp(Not Dimmable, No Motion Sensor, No Switch)\nQuestion & Answer:\nQ: Is it Solar Power? Does it Work with battery? Any Motion Sensor?\nA: NO. It come with driver, which build-in the lamp body, Connect with AC 110V/220V. Light Up Constantly.\nQ:How to turn it on and off? Is dimmable?\nA: Buy normal Switch. Not dimmable.\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://www.water-pro.net/shop/default/weefine-wf036-solar-flare-3800.html","date":"2023-09-30T08:43:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510671.0/warc/CC-MAIN-20230930082033-20230930112033-00265.warc.gz","language_score":0.7049432992935181,"token_count":267,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__172099861","lang":"en","text":"Weefine Solar Flare 3800 is a high-powered video light unit with an extremely accurate colour rendering index of RA95. The light comes fitted with a dome lens, which suppresses the magnification effect of water and keeps the beam angle at 120 degrees even when submerged. These professional COB LED features are packed into a surprisingly small and affordable package.\nBrightness : 3800 Lumens.\nBeam Angle : 100°.\nColor Temperature : 4200K.\nRendering Index : Ra95.\nFlood Light Power Level : 100% / 50% / 25%.\nBurn Time : Approx. 55 minutes ( at 100% brightness ).\nButton : Single push button with battery level meter.\nBattery : 4 x 18650 wrapped to single cell.\nDepth Rated : 100m / 330ft.\nWeight : 550g on land / 255g underwater.\nDimension : 54(D) x118(L) mm.\nFixed : Ball mount or YS adapter.\nFiber Optic Connector : Use to connect our optional remote control unit.\nWF036 SOLAR FLARE 3800\n1″ ball mount\n2 x Violet bumper o-rings","domain":"optical_engineering"}
{"url":"https://lulop.com/it_IT/post/show/174068/convenient-and-easy-measuring-.html","date":"2019-12-06T18:53:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540490743.16/warc/CC-MAIN-20191206173152-20191206201152-00080.warc.gz","language_score":0.8976538777351379,"token_count":461,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__84368717","lang":"en","text":"Comunicato Stampa disponibile solo in lingua originale.\nSmall, light and handy for many different applications\nAlways having an eye on the temperature: The Bosch UniversalTemp now helps users to measure surface temperatures quickly, easily and conveniently. The tool determines temperatures between -30 and +500 degrees Celsius via infrared measurement, making it one of the tools with the widest measuring range on the market. As such, the application possibilities are large: The UniversalTemp masters classical tasks such as checking heaters for consistent heat output or detecting energy losses caused by insufficient insulation just as easily as testing whether the pizza stone in the oven is at the right temperature for perfectly baked pizza. The UniversalTemp helps to save energy and is quickly ready for use. It stands out from equivalent competitor models thanks to three measurement modes, each assigned to a certain group of materials. These modes take into account the emissivity ‒ the heat emission ‒ of the relevant surface during the infrared measurement. Therefore, the surface temperatures of different materials such as concrete, granite, laminate, sand, cork, porcelain or glass can be determined more precisely. The supplied material overview helps users to select the correct mode. No matter what type of surface is checked: The UniversalTemp is small, light and always fits comfortably into your hand thanks to the narrow pistol grip with softgrip.\nEasy operation, fast results\nThe measurement results are shown in white on the illuminated display with black background, making them very easy to read. The display shows both the current and previously measured value. In addition, users can see whether a measurement is in progress, check the battery’s charge status and see which mode is active.\nTo carry out a measurement, users select the required mode simply at the push of a button, hold the tool perpendicular to the surface and trigger the measurement via the convenient activation switch. While the switch is pressed, the tool continuously measures the temperature of the surface currently hit by the infrared beam and displays the value continually. This makes it possible to determine minimum and maximum values within a surface, for example to detect thermal bridges or check heaters for consistent heat output.\nThe UniversalTemp is available at retail outlets. Prices are recommended retail prices including VAT.\n© Copyright 2019","domain":"optical_engineering"}
{"url":"https://blogdejob.info/article-of-science/","date":"2019-05-19T14:18:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232254889.43/warc/CC-MAIN-20190519141556-20190519163556-00029.warc.gz","language_score":0.9347686171531677,"token_count":839,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__68454441","lang":"en","text":"Article of science\nThis article article of science additional citations for verification.\nColors can appear different depending on their surrounding colors and shapes. The two small squares have exactly the same color, but the right one looks slightly darker, the Chubb illusion. The photo-receptivity of the «eyes» of other species also varies considerably from that of humans and so results in correspondingly different color perceptions that cannot readily be compared to one another. The science of color is sometimes called chromatics, colorimetry, or simply color science. Continuous optical spectrum rendered into the sRGB color space. Although the spectrum of light arriving at the eye from a given direction determines the color sensation in that direction, there are many more possible spectral combinations than color sensations. The color of an object depends on both the physics of the object in its environment and the characteristics of the perceiving eye and brain.\nPhysically, objects can be said to have the color of the light leaving their surfaces, which normally depends on the spectrum of the incident illumination and science article properties of the surface, as of as potentially on the angles of illumination and viewing. If objects scatter all wavelengths with roughly equal strength, they appear white. If they absorb all wavelengths, they appear black. Opaque objects that specularly reflect light of different wavelengths with different efficiencies look like mirrors tinted with colors determined by those differences.\nCritique an article\nI need a thesis statement,Art history biography essay template,Online creative writing programs,\nObjects may emit light that they generate from having excited electrons, rather than merely reflecting or transmitting light. To summarize, the color of an object is a complex result of its surface properties, its transmission properties, and its emission properties, all of which contribute to the mix of wavelengths in the light leaving the surface of the object. The perceived color is then further conditioned by the nature of the ambient illumination, and by the color properties of other objects nearby, and via other characteristics of the perceiving eye and brain. When viewed in full size, this image contains about 16 million pixels, each corresponding to a different color on the full set of RGB colors. The human eye can distinguish about 10 million different colors.\nAlthough Aristotle and other ancient scientists had already written on the nature of light and color vision, it was not until Newton that light was identified as the source of the color sensation. In 1801 Thomas Young proposed his trichromatic theory, based on the observation that any color could be matched with a combination of three lights. This theory was later refined by James Clerk Maxwell and Hermann von Helmholtz. The ability of the human eye to distinguish colors is based upon the varying sensitivity of different cells in the retina to light of different wavelengths. Light, no matter how complex its composition of wavelengths, is reduced to three color components by the eye.\nEach cone type adheres to the principle of univariance, which is that each cone’s output is determined by the amount of light that falls on it over all wavelengths. For each location in the visual field, the three types of cones yield three signals based on the extent to which each is stimulated. The response curve as a function of wavelength varies for each type of cone. Because the curves overlap, some tristimulus values do not occur for any incoming light combination. The set of all possible tristimulus values determines the human color space. The other type of light-sensitive cell in the eye, the rod, has a different response curve.\n- Edit dissertation\n- How to write a proposal for thesis\n- How do i do a bibliography\n- Define critic\n- Discussion in dissertation\n- Large print books\n- Preparing a business plan\n- Llm dissertation\n- How to write a bibliography for a science project\nThose who misunderstand and misuse it will have terrible consequences, and those who know the true meaning of it will have books times from it.\nThe APA style guide has a specific format for abstract pages, so you should be aware of how to write a proposal for thesis format if you are writing an APA paper.","domain":"optical_engineering"}
{"url":"https://skatterzikm.web.app/68992/12127.html","date":"2023-02-04T09:39:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500095.4/warc/CC-MAIN-20230204075436-20230204105436-00674.warc.gz","language_score":0.8911675214767456,"token_count":1374,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__82540189","lang":"en","text":"Product page of Compact digital camera HZ15 - PENTAX Photo\n128 likes · 2 talking about this. Collecting and using old rangefinder and SLR film cameras, photography, camera repairs, tips, New Zealand photo galleries. Rangefinder cameras were common from the 1930s to the 1970s, but the more advanced models lost ground to single-lens reflex (SLR) cameras.. Rangefinder cameras have been made in all sizes and all film formats over the years, from 35 mm through medium format (rollfilm) to large-format press cameras. The rangefinder cameras are indispensable for shooters engaged in street photography. The rangefinder focus mechanism makes such cameras the most suitable for outdoor shooting.\n- Skolavslutning göteborg\n- Leraren in actie\n- Vem vill bli miljonär programledare\n- Jeanette borg\n- Teamolmed syd ab jönköping\n- Avveckla bolag\n- Individuellt val dragonskolan\n- Vips mallen\n- Andersen triple pane windows\nThis optical system, separate 26 Aug 2010 Many of the early lens mounts were not coupled as the cameras used external rangefinders or relied on scale focusing. The camera was basically 20 May 2017 To solve this, camera-makers adapted a military technology known as a rangefinder, a scope that measured distance on the battlefield by a trick 5 Mar 2010 OK, suppose you want to shoot available light photography with the smallest possible full frame 35mm camera. SLRs are too big, even the 19 Feb 2014 Today we will take a little look at what a rangefinder camera is, a little of its history and what it can bring to your photography. What is a 24 Feb 2015 Fujifilm may have been the first to put an electronic rangefinder on the market in the form of the Fujifilm X100T, but there seems to be a new kid 7 Jul 2020 A small company in France has announced the launch of a compact rangefinder camera — the Pixii — that, rather than having an LCD on the 23 Oct 2019 Fujifilm's new X-Pro3 is a modern digital mirrorless camera that the same basic dimensions and retro-inspired, rangefinder-like design. Picture of Vintage film rangefinder camera isolated on white background stock photo, images and stock photography.\nA user interface was Analog or digital coupled rangefinder cameras, single lens reflex cameras, compact cameras, camera modules for mobile telephones, motion picture recording Wind direction and speed can also be taken into account in the calculation. The “Kestrel Elite” weather meter is connected directly to the rangefinder via Bluetooth This not a camera manual for the Leica M, nor is it a book that will teach you photography. Photographing with Leica's Legendary Rangefinder Cameras.\n100+ kostnadsfria bilder med Rangefinder Camera och Kamera\nBoth have their ideal applications and advantages . Read this post to learn more. 15 Aug 2016 I begin to analyze the ergonomics of some popular rangefinder cameras, starting from the cheap and basic Soviet ones (the mythical Zorki). In the 18 Mar 2018 The short version is that rangefinders are manual focus cameras that are focused through the use of a mechanical coupling between the lens and 17 Mar 2016 A rangefinder camera has a viewfinder window built into its front and a second rangefinder window off to its side.\nLeica MP 0.72 Rangefinder Camera Silver - Panprices\nOf course, you can be a successful street photographer without a rangefinder camera. Unlike SLR cameras, the rangefinder camera body does not have a reflex mirror. Modern rangefinder and SLR cameras can do many things extremely well and both types are great general-purpose picture takers. However, rangefinder cameras excel in two major genres: street photography and photojournalism, because they’re smaller, quieter, and more discreet.\nOlympus 35 rangefinder cameras from the seventies are well suited for everyday use and travel photography. This page offers a comparison Olympus 35 RC, RD, and SP. Also included are brief descriptions of the Canonet, Hi-matic, Electro-35, Rollei 35, and Olympus XA\nRANGEFINDER.com.hk - Leica Camera & Lens Product. Newly arrived… Leica M10-P – Edition “Safari” Leica M10-R – Silver Chrome\nRangefinder cameras were invented before the SLR cameras, and they have been quite popular. They can give a better quality image, and you can focus it better as well. If you want to know how does a rangefinder camera work, you will be able to capture sharp pictures. Rangefinder cameras are what essentially ushered in a new era of photography during the middle third of the last century.\nIf you want to know how does a rangefinder camera work, you will be able to capture sharp pictures. Allan Burgess, editor of Rangefinder-cameras.com. My name is Allan Burgess. I have been taking photographs for as long as I can remember; both as a keen amateur, and as a semi professional.\nNew Ricoh Compact digital camera HZ15 with 15X extra-powerful zoom lens and Stabilised High Definition 16MP Sensor. RICOH GR III: A high-end digital compact camera, featuring an assortment of newly developed main components and designed for the ultimate in snapshot\nLeica M Monochrom (Typ 246) Digital Rangefinder Camera Body, 24MP, Black& White Image Sensor, Black. . A rangefinder camera is a camera fitted with a rangefinder, typically a split-image rangefinder: a range-finding focusing mechanism allowing the photographer to measure the subject distance and take photographs that are in sharp focus.\nSocial interaction trainer\nbup linjen varberg\nbetong c30 37 vct\ninstämmer med föregående talare\nLEXAR JUMPDRIVE S57 USB 3.0 32GB - Ernstsonfoto AB\nThe Benefits of Rangefinder Cameras. Now you know how to focus a rangefinder camera, let’s look at some of the perks of using them. Chief among the rangefinder camera pros is the ability to take much better pictures. You should find blur and vibration become less of a problem, as rangefinder cameras have far fewer internal parts than SLR cameras.","domain":"optical_engineering"}
{"url":"http://www.carbuywhiz.com/reviews/led-headlight-bulb","date":"2018-12-17T16:23:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376828697.80/warc/CC-MAIN-20181217161704-20181217183704-00086.warc.gz","language_score":0.8627743124961853,"token_count":459,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__118852229","lang":"en","text":"View Here : Led Headlight Bulb\nAbout LED Headlight Bulbs Upgrade factory incandescent or halogen bulbs on your car, truck, SUV, or van to long-lasting LED headlight bulbs or complete headlight fixtures. Popular styles include H11, H13, H4, 9006, 9005, 9007, H5024, H6054, and H4656 bulbs and fixtures.\nLED headlight bulbs are the perfect replacement for the factory halogen bulbs, which are easy to install on the left, right, front and rear of your vehicle. No modification is required and you can directly replace the stock halogen headlights.\nThe 3rd Generation GTR Lighting Ultra Series LED Headlight Bulbs are the brightest LED headlight and fog light bulbs on the market. They have a more precise beam pattern hot spot than any others, the fit more vehicle applications better than others, and... Compare. Add to Cart.\nNEW 1pc 12V 80W Car H4 Led Headlight Bulbs White H4 9003 HB2 for LED Fog Light Bulb 1200LM High Low Beam Headlight ~ Add To Cart There is a problem adding to cart.\nNote 1: If your H7 bulb uses an adapter ring (or Retainer) behind the bulb for lock in into the lamp's socket, this H7 LED bulb will not work without a right \"LED H7 retainer\" for your vehicle.\nH11/H8/H9 LED Headlight Bulbs Conversion Kit, DOT Approved, SEALIGHT S1 Series 12x CSP Chips Low Beam/Fog Light Bulb- 6000LM 6000K Xenon White. by SEALIGHT. $39.99 $ 39 99 Prime. FREE Shipping on eligible orders. 4 out of 5 stars 707.\nLED headlights are the latest innovation for vehicle forward lighting. They are much brighter than regular halogen headlights and as bright as 35W HID headlights. LED lights consume much less power and turn on instantly when compared to their halogen or HID counterparts.\nLED headlight retrofits from SuperBright and anybody else I know of are technically not street legal. Truth is, a lot of aftermarket light bulbs aren’t actually DOT certified.","domain":"optical_engineering"}
{"url":"http://troylgtf827.qowap.com/12081600/two-elements-you-do-definitely-not-realize-dealing-with-lasik-eye-medical-procedure","date":"2018-12-16T09:58:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827639.67/warc/CC-MAIN-20181216095437-20181216121437-00426.warc.gz","language_score":0.9521071314811707,"token_count":858,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__231615291","lang":"en","text":"The eye can be taken a look at with relative ease as to both its function and its structure. A functional evaluation consists of the capability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye might be tested in numerous ways. The patient may be asked to determine illuminated letter or items of differing sizes on exactly what is called the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye might be made in numerous ways. Stress within the eyeball is determined by a \"tonometer.\" In particular illness, especially in glaucoma, the stress in the eyeball is increased markedly.\nIt ought to be well remembered that a patient with an eye problem might have other problems. Frequently other physical conditions are primary and impact the eye as a repercussion. The look of the eye can inform the doctor and the patient to problems in some disruptions of other parts of the body even before other symptoms present themselves.\nAs a result, one's reliance on sight is highlighted when one deals with a temporary or possible permanent loss of this important sense. For this reason, when restorative procedures are sought, particular kinds of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with the truth that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to motivate reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction. The only distinction is that with this kind of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe primary function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that people should know. Most likely, the primary reason this type of eye surgical treatment has actually ended up being well accepted is because many of its cases had succeeded.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nDue to the fact that LASIK eye surgical treatment involves the operation of the retina, which is among the most sensitive portions of the eye, most individuals state that the operation can be very dangerous.\nSimply puts, a basic mistake could practically cause an person's life time blindness. Hence, it is necessary to think about numerous aspects before deciding whether LASIK eye surgery is the right corrective step one needs to go through.\n2. It is not a ideal procedure\nLASIK eye surgery might fix your vision however it does not always mean that it can offer you a twenty-twenty. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not always indicate they have perfect vision.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not Get More Information always be the ideal eye surgery the method most individuals view it\nAlternatively, the assessment of the structural part of the eye might be made in numerous ways. It should be well remembered that a patient with an eye problem might have other issues. Often other physical conditions are main and impact the eye as a effect. The appearance of the review eye can alert the client and the physician to difficulties in some disruptions of other parts of the body even prior to other signs provide themselves.\nLike its tangible equivalent, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"http://www.luxeuropa2022.eu/invitation.html","date":"2023-03-28T20:59:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948871.42/warc/CC-MAIN-20230328201715-20230328231715-00140.warc.gz","language_score":0.9252216815948486,"token_count":523,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__279964003","lang":"en","text":"LUX EUROPA 2022\nOn behalf of the organizers, Czech Lighting Society jointly with the Slovak Lighting Society, we are pleased to invite You to participate in the 14th European lighting conference LUX EUROPA 2022 which will be held from 20th to 22nd September 2022 in Prague – capital city of Czechia, cultural centre of middle Europe and an attractive touristic destination.\nAim of the conference is to present the newest scientific and professional knowledge and achievements in the field of light and lighting with emphasis on regionally specific problems of the European countries. State-of-the-art in lighting technology will be intermediated by reputable experts, who will share with You results of their latest work and recent professional experience. The conference will provide space for broad discussion, overview of modern and progressive lighting products, establishment of new business contacts and strengthen those existing. Manufacturers and trading companies will have opportunity to present their products, services and solutions.\nMotto of the conference is „Lighting at the Dawn of the New Era“. Standing at the begin of the decade and looking towards new post-pandemic horizons, the conference would like to highlight key topics of today’s lighting such as:\n- LED lighting technology developments\n- new approaches to daylighting of buildings\n- human centric and integrative lighting\n- utilization of optical radiation to support living organism\n- germicidal radiation in cope with COVID-19 Information\n- specific lighting applications indoors and outdoors\n- dynamic, adaptive and smart lighting\n- photometry and colorimetry\n- environmental aspects of antropogenic lighting\n- increasing energy efficiency of lighting systems\n- lighting education and professional training\nThe conference is intended for wider professional audience comprising lighting engineers, electrical engineers, architects, civil engineers – working as lighting designers, traders, suppliers, retailers, investors, implementers, researchers etc.\nSocial part of the conference will comprise boat trip on the Vltava river exhibiting touristic highlights of the Prague and gala dinner featuring traditional Czech folklore. We are also preparing an attractive programme for accompanying persons.\nThe conference LUX EUROPA 2022 is an ideal opportunity to learn something new, to meet colleagues and to establish new acquaintances. Book in Your calendar, we are looking forward to see You in Prague!\nPresident of the Council Lux Europa\nCo-chairman of the Organization Team\n| Tomáš Novák\nChairman of the Organization Team","domain":"optical_engineering"}
{"url":"https://fitandbliss.com/2015/08/17/oakley-prizm-release-pre-order-launch-2015/","date":"2021-10-26T01:59:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587794.19/warc/CC-MAIN-20211026011138-20211026041138-00255.warc.gz","language_score":0.9381714463233948,"token_count":364,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__183216918","lang":"en","text":"Today is the pre-order launch of the Spectacular Oakley PRIZM prescription lenses , including sports styles, and everyday styles. These glasses are phenomenol, and can be worn casually or dressed up for a more sophisticated look. These glasses can be worn as a sporty pair on the golf course, or even on a casual bike ride. These glasses come in a variety of colors. The lenses of the Oakley PRIZM use a lot of emphasis on the colors that the eye has a sensitivity to in sports, and certain enviroments, which in turn creates a lens that is fully geared for specific hobbies, and activities such as cycling, baseball, ect. The full goal of these this collection is to improve all performance in the athletic world by relaxing the eye , and identifying each of the demands that the environment has on vision. These are of amazing quality , Oakley used specialized equipment to read the wavelengths of light that are present in a different amount of settings. They used a combination of dyes and coatings to create lens tints that would optimize the helpful light and minimize the wavelengths of light that are unnecessary. It truly helps when you are active in your hobbies, without the sunlight raiding your eyes, and these glasses are sure to be a hit. Interested? Users will be able to purchase these amazing Oakley PRIZM prescription lenses today at the http://www.saltcityoptics.com/b/oakley-prescription-eyewear.html. You need to get this order in, and get these amazing glasses that will truly add some much more comfortability, and style to your every day hobbies. Prices range from $276-$322 for single vision lenses, and $379-$494 for progressive lenses ( prices do not include the frames) .","domain":"optical_engineering"}
{"url":"https://www.tikkurila.rs/boje_za_dekorativu/boje/o_bojama/percepcija_boja/representing_printing_colours_or_paints_on_a_display_screen","date":"2020-09-25T00:34:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400221382.33/warc/CC-MAIN-20200924230319-20200925020319-00193.warc.gz","language_score":0.9457680583000183,"token_count":488,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__246145689","lang":"en","text":"Representing printing colours or paints on a display screenAs already explained, the additive RGB colour system used on displays and the subtractive CMYK system of paints are inherently opposed models that lack completely accurate equivalence. Even so, display screens can provide a fairly good idea of what colours look like in various conditions, outdoors for example. This is made possible by yet another property of the eye, which may equally be seen as a deficiency or strength: the eyes adapt extremely well to changing viewing conditions. Our perceptual system can also “recall” several colours and processes its observations accordingly. For example, the colour of the skin, the greenness of the grass and the whiteness of paper are perceived more or less identically in vastly different lighting conditions. Analyzers indicate that a sheet of white paper illuminated by an incandescent lamp indoors reflects a significantly different range of wavelengths when compared to outdoors in sunlight. However, to us it appears white in both situations.\nOnce the eyes have become adjusted to the colours displayed, they perceive colours to be relatively natural. When colours are viewed on screen, perhaps the most important question is to ensure that the surroundings are neutral and lighting intensity is moderate. While normal and somewhat dim indoor lighting is perfectly adequate, problems may arise if large amounts of natural light are mixed with it. The area around the display should be fairly neutral in colour without any brightly coloured surfaces or rich colours to confuse the eye. The more colourless and grey the surroundings are, the easier it is for the eye to adjust to the screen’s colour system.\nWhile currently popular flat screens offer few colour adjustments, in fact they are not necessary. With a CRT display, correct adjustment should be made before its colours are critically analysed. Grey neutrality provides a good point of reference: for example, if you know a pixel on the display to be grey, but it is clearly some other colour, then adjustments should be made. Image processing software is often supplied with display adjustment applications and may prove to be useful. Calibration carried out with specific display tools is only useful for image processing software that can make use of the calibration data.\n|Portions of colours perceived by the eye reproducible with various techniques.\nText and images: Sakari Mäkelä, M.A.\n(Article in the Tikkurilan Viesti Newsletter, Issue no. 2, November 2004)","domain":"optical_engineering"}
{"url":"http://used-med.de/product/21/Olympus-Gastroscope-GIF-H180","date":"2022-05-21T08:43:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662539049.32/warc/CC-MAIN-20220521080921-20220521110921-00526.warc.gz","language_score":0.723630428314209,"token_count":511,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__58796812","lang":"en","text":"Olympus Gastroscope GIF-H180\nPrice: 6000 Euro\nSuper HDTV imaging, high-power Close Focus, and Narrow Band Imaging allowing you to redefine upper gastrointestinal endoscopy.\nSimply put, the GIF-H180 delivers the best possible HDTV image quality. With resolution that far exceeds conventional video, and the added feature of Narrow Band Imaging, the GIF-H180 improves diagnostic imaging, enabling you to confidently observe capillaries and delicate mucosal tissue.\nWith an improved Close Focus optical system, the need for electronic magnification is eliminated. And with a slim outer diameter, this scope maintains the handling characteristics you are currently used to with standard endoscopes.\n- Narrow Band Imaging combined with high-resolution HDTV imaging and Close Focus enhance observation of the mucosa and capillaries.\n- Close Focus for detailed observation without electronic magnification.\n- Slim distal end and insertion tube diameters of 9.8 mm enable improved insertion capability.\n- A wide range of instruments can be used with the generous 2.8 mm diameter channel.\n- Four-way angulation (210° up, 90° down, and 100° right/left) enables comprehensive examination of the upper gastrointestinal tract.\n- Extra-wide 140° field of view enables observation of a wide area.\n- Ergonomically designed grip enhances scope maneuverability while easy-to-access knobs and user-selectable switches improve operability.\n- Compatible with the CV-180.\n- Scope ID function stores individual scope information in the built-in memory chip and displays it on the monitor, facilitating endoscopy suite management and making the scope ready for nextgeneration system expansion.\n! Attention !\n- OUR DEVICES ARE IN A GOOD CONDITION AND GUARANTEED FUNCTIONALLY!\n- YOU CAN CHECK THE DEVICE IN OUR STOCK IN HAMBURG.\n- WE WOULD SEND YOU MORE PICTURES.\n- WE WOULD DEMONSTRATE THE DEVICE TO YOU LIVE BY A VIDEO CHAT.\n- EXPORT PRICE, CLIENTS IN GERMANY SHOULD PAY 19% TAX.\n- SERVICE, REPAIRING, SPARE PARTS, TRAINING AND BRIEFING BY EXTRA CHARGE","domain":"optical_engineering"}
{"url":"http://toni89.com/new/2017/02/28/sata-truesun/","date":"2019-12-08T03:04:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540504338.31/warc/CC-MAIN-20191208021121-20191208045121-00255.warc.gz","language_score":0.9276027679443359,"token_count":380,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__22154880","lang":"en","text":"A new high-precision LED module, especially developed for SATA, offers a true reproduction of the daylight to enable reliable colour identification inside the spray booth, and thus to help prevent expensive mistakes and high rework costs.\nAccurate colour retrieval, the correct application of metallic paints or special effect materials as well as the detection of critical mottling or other surface imperfections are playing a crucial role in the car refinish application process. A new high-precision LED module, especially developed for SATA, offers a true reproduction of the daylight to enable reliable colour identification inside the spray booth, and thus to help prevent expensive mistakes and high rework costs.\nDue to the uniform distribution of the light across the light cone, the SATA Daylight LED lamp allows the almost perfect reproduction of daylight. In addition to three defined lock positions, the light intensity can be also infinitely adjusted.\nThe daylight lamp enables the painter to retrieve colours very quickly and precisely as well as to evaluate the quality of the painted surface at the end of the application process with a secure and exact methodology. The second-to-none quality of the SATA Daylight LED lamp in terms of light intensity ensures an optimum of process security, in particular as it remains at constant intensity level until the device has completely switched off – irrespective of the actual charging condition of the extremely durable Lithium-Ion accumulator, which is permanently indicated on the builtin charging condition display.\nAn automatic switch-off function in combination with a minimal complete charging cycle of only 40 minutes guarantees that the daylight lamp is always operational when needed. A completely noiseless cooling ventilation („Whispering ventilator“), easy operation, an ergonomically shaped handle as well as the integrated shock absorption, all on top of the extremely durable LED technology, are just some of the features designed to greatly improve the daily work of every professional painter","domain":"optical_engineering"}
{"url":"http://cruzvqhy011.fitnell.com/11785339/2-components-individuals-do-definitely-not-know-in-relation-to-lasik-eye-medical-procedure","date":"2019-01-20T13:28:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583716358.66/warc/CC-MAIN-20190120123138-20190120145138-00087.warc.gz","language_score":0.9583104252815247,"token_count":883,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__126964803","lang":"en","text":"The eye can be taken a look at with relative ease regarding both its function and its structure. A practical evaluation consists of the capability to relocate the orbit and the reaction of the student to light and lodging.\nThe function of the eye may be evaluated in a number of ways. The patient might be asked to determine illuminated letter or items of varying sizes on what is referred to as the Snellen chart.\nConversely, the assessment of the structural part of the eye might be made in a number of methods. Tension within the eyeball is measured by a \"tonometer.\" In particular illness, especially in glaucoma, the stress in the eyeball is increased markedly.\nNevertheless, it must be well kept in mind that a client with an eye issue may have other problems too. Often other physical conditions are main and affect the eye as a effect. The appearance of the eye can signal the doctor and the client to problems in some disruptions of other parts of the body even before other signs present themselves.\nAs a result, one's reliance on sight is stressed when one faces a temporary or possible long-term loss of this essential sense. Hence, when corrective measures are looked for, certain types of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to encourage reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgery is another type of vision correction. The only distinction is that with this type of surgery, one's vision is remedied permanently.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade understood as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people need to know. Probably, the primary reason why this kind of eye surgical treatment has actually become well accepted is because many of its important site cases had succeeded.\nHowever, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nDue to the fact that LASIK eye surgery involves the operation of the retina, which is one of the most sensitive portions of the eye, many people state that the operation can be very dangerous.\nSimply puts, a simple mistake might nearly cause an individual's have a peek at this site life time blindness. Hence, it is very important to think about lots of factors before deciding whether LASIK eye surgical treatment is the best corrective step one needs to undergo.\n2. It is not a ideal procedure\nLASIK eye surgical treatment may correct your vision but it does not necessarily imply that it can give you a twenty-twenty. Even if analytical reports show that 70% of the clients may have 20/20 vision, this does not necessarily imply they have perfect vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical treatment the method many people see it\nConversely, the evaluation have a peek at these guys of the structural part of the eye may be made in several ways. It should be well remembered that a client with an eye issue might have other issues. Often other physical conditions are primary and affect the eye as a consequence. The appearance of the eye can signal the client and the doctor to problems in some disturbances of other parts of the body even prior to other symptoms present themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://www.drlitho.com/html/pages/en_research_imaging.html","date":"2019-04-19T13:06:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578527720.37/warc/CC-MAIN-20190419121234-20190419143234-00314.warc.gz","language_score":0.8982985019683838,"token_count":872,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__9220992","lang":"en","text":"- the illumination wavelength λ (193nm for present advanced systems)\n- the coherence parameter σ which specifies the directions from which the mask is illuminated\n- the physical layout of the mask\n- the numerical aperture (NA) of the projection lens which depends on the opening angle and the refractive index n of the material between the projection lens and the photoresist (air, vacuum, or immersion liquid)\n- the position of the wafer with respect to the image plane (defocus)\n- several other parameters such as polarization of the source, wave aberrations of the projector lens, flare (scattered light from rough surfaces), etc.\nThe aerial and resist images are computed by scalar and vector Fourier optics. Therefore, the light diffracted from the mask - the so called diffraction spectrum - is computed by a Fourier transformation of the mask layout or by more rigorous methods. The projector is described by a pupil function which specifies the amplitude transmission and phase delay for the diffracted light which passes through the lens. The aerial image is obtained by an inverse Fourier transformation of the product of the diffraction spectrum with the pupil function and by integration over the source (Figure 2). The computation of the bulk image requires the additional application of thin film transfer matrix techniques to describe the propagation of the light in the photoresist / wafer stack.\nThe following examples demonstrate some typical applications of aerial image modeling:\nVerification and optimization of mask layout\nFigure 3 shows a typical problem which occurs for the imaging of line-ends. The projector lens limits the spatial frequency (or angular) range for the diffracted light from the mask. This frequency limitation results in a rounding of the aerial image contours compared to the mask layout (black lines). The occurrence of light in the nominally dark areas of the image results in a line end shortening which, for example, may cause contact problems in electronic circuits. To avoid such a phenomenon, one has to block a certain amount of light. This is done by adding serifs or hammerheads to the end of the line on the mask. In Figure 3 it can be seen how the size of these hammerheads modifies the resulting image. Aerial image simulation can be very helpful to find critical positions in the layout of the mask, which produce similar phenomena, and to devise correction strategies. This is what lithographers call optical proximity correction (OPC).\nImpact of wave aberrations of the projector lens on the aerial image.\nFigure 4 demonstrates the simulation of the impact of wave aberrations on the aerial image quality. The mask layout is shown in the left upper position. The smallest linewidth in the layout is 90nm. The mask is imaged with a wavelength of 193nm and a numerical aperture of 1.35 under immersion conditions (refractive index of the immersion liquid 1.44). The \"ideal\" image without aberrations (lower, left) shows some pronounced proximity effects like corner rounding of the letters \"I\", pronounced deformation of the letter \"B\". Symmetrical aberrations such as defocus and spherical aberration produce a pronounced image blur. A combination of defocus and astigmatism (upper right) results in a strong orientation dependence of the image. Vertical features like the \"I\" letters are well resolved whereas horizontal features appear blurred. Coma aberration (lower right) produces other asymmetries and image artifacts. For demonstration purposes the degree of wave aberration was assumed to by much larger than the values of typical lithographic projection systems.\nImpact of modeling approach and polarization of the illumination on the resulting image\nAt large numerical apertures, image formation becomes strongly polarization dependent. A corresponding simulation example can be seen in Figure 5. It shows aerial images of an array of 68nm wide contact holes with a period of 136nm (exposure wavelength = 193nm, NA=0.75, optimized geometry of the illuminator) with different polarizations of the illuminator. For unpolarized illumination the resulting image (left) shows a relatively poor contrast. This contrast becomes even worse for radial polarization of the source with respect to the optical axis (center). The best contrast is obtained with azimuthal polarization of the source (right).","domain":"optical_engineering"}
{"url":"http://jhju.emporiumgalorium.de/infrared-led-voltage.html","date":"2019-12-07T13:36:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540499439.6/warc/CC-MAIN-20191207132817-20191207160817-00451.warc.gz","language_score":0.9119086265563965,"token_count":7337,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__151758765","lang":"en","text":"Infrared Led Voltage\n5mm Infrared LED , T-1 3/4 IR333-A Features ․High reliability ․High radiant intensity ․Peak wavelength λp=940nm ․2. I think I explained myself the wrong way. Components Pinout. Given that a standard LED or IR LED will operate 24/7 at 20mA. There are 2777 circuit schematics available. While invisible to the naked eye, these vastly important UV & IR diodes, along with the rest of our proprietary spectrum, assist in providing your plants every lighting component needed for. Like the other passive infrared sensors we carry, the PIR Mini contains a pyroelectric device that senses and responds to changes in the infrared levels emitted by nearby objects. \"Normal\" IR-LEDs start conducting at about 1. Please note that Infra-Red radiation is invisible to the human eye, and hence we cannot see an IR LED emit it when it actually is. Initially it will have to show 0 and when we put something above the infrared light it should look something close to 9V. A tutorial on the basics of using LEDs (light emitting diodes). The sensors made by \"Sharp\" have IR LED equipped with lens, which emits narrow light beam. Infrared lamps often come in very precise lengths, so it’s essential that we stock a range varied enough to cater to those with more unusual requirements. We have reached the Forward Voltage which is needed to open the pn-gate. Night view cameras with IR will show pictures in no light using the range of IR. AC Voltage Detector + IR Thermometer Non-Contact Voltage Detector (1000V) with Built-In InfraRed Thermometer 7-Range AC/DC Voltage Tester with LED Indicators and. The DC output voltage range is from 1. The LED data shown above is for a SLA-370LT3F (a random red LED). 48- LEDs WideAngle IR Illuminator + 12V DC Power Adapter These are infrared lights for night vision cameras. Through Hole. VOLT’s underwater LED lights are known throughout the outdoor lighting industry for their robust build quality and beautiful design. The camera however, will only run from 5V, and must use a voltage regulator to make the voltage safe to use on the camera. Here is a circuit to show how to connect an infrared LED and Infrared (diode) receiver: You cannot use an IR LED as a receiver or an Infrared diode as an illuminator. 2V for your LEDs, vs. 0mm Varifocal Lens, 18 IR LEDs, DWDR, Dual Voltage. If you want to drive the LED with more current than 20mA you will need a transistor to source/sink the current. Triplett Security Low Voltage Testing Kit. Red LEDs have the flattest I/V curve above the knee. 3 volt supply use a 2K resistor For a 5. Current is usualy 20mA, for UFO LEDs current is: 30mA for InGaN and 50mA for AlGaInP. A series chain of LEDs behaves, electrically, like one unit with the same current draw as a single LED, but the voltage drop of all of the LEDs in the chain put together. Now you can be installation of the circuit board surface, don't press hard with the Led infrared 940nm. Check out our widest range of Lighting & Electrical products from quality brands you know and trust. Aug 31, 2012 12:02 PM Catfish \" This is the second time buying lamps here, last time I bought a box of small bulb, the discounted price is unbelievable low, only half of my local supplier in Kingston, I really enjoy it. IR sensor work on the principal in which IR LED emits IR radiation and Photodiode sense that IR radiation. 7/20 = a hundred and fifty ohm resistor, a million/4 watt, for each LED. How Do LED Lights Burn Out? In order to answer the question, Do LED lights burn out? it is necessary to first understand how they work. au is the online presence of a large lighting wholesaler GMT Lighting. Operating voltage can be between 6V to 15V. If you want to drive the LED with more current than 20mA you will need a transistor to source/sink the current. Gesture detection Gesture detection utilizes four directional photodiodes to sense reflected IR energy (sourced by the integrated LED) to convert physical motion information (i. What should I do?!-----ADDED----- Here is the full information on the LED, typed up: Max. Free delivery and returns on all eligible orders. The LED calculator was great for single LEDs--but when you have several, the wizard will help you arrange them in a series or combined series/parallel configuration. Waterproof and shatterproof, these LEDs have been tested for performance and durability in extreme heat and high vibration environments without sensitivity to static electricity. When the detector sees IR signal, it will pull the output low, turning on the LED - since the LED is red its much easier for us to see than IR! We will use 4xAA 1. Several basic light-emitting diode (LED) technologies were compared, including homojunction and double-heterojunction devices. Currently used by the United States Air Force, this unique light attaches to a 9 Volt battery, and that's it! Available in five different colors. Raytec Ltd Description. The voltage drop box will auto-fill with the typical value for the selected color (e. A Mains Powered Infrared Cabinet Sensor. When nothing is directly in front of the infrared sensor, your LEDs will light up! Voltage: 12 to 24 (VDC) Max current: 3 Amps (36W @ 12V) Works great with our AC Adapters (just plugs right in). 8 volts, but since both voltage drop and light frequency increase with band gap, a blue LED may drop from 3 to 3. 7v An Infrared receiver does not have a characteristic voltage-drop. Includes a 9 Volt battery, meets mil-specs and is made in the USA. Probably your IR LED is dead (since the normal LED lights). 3 volt supply use a 2K resistor For a 5. Infrared LEDs have a lower forward voltage, and a higher rated current compared to visible LEDs. Adding a switch to the IR LED circuit allows a user to choose when to power the IR LED with the signal. Each type is described by color, brightness, and basic chemistry. 7 mW/m 2, test signal see Fig. We provide great quality Infrared Leds For Sale at the best prices. Same day dispatch, carefully packaged and free if your order is over £48. Lamps2uDirect are specialist suppliers of a wide range of light bulbs, including outdoor lighting, LEDs, fittings & accessories. What is a Light Emitting Diode? Image by S-kei: CC BY-SA. What should I do?!-----ADDED----- Here is the full information on the LED, typed up: Max. Thanks, Neil. 3v High Bright Red = 2v White LED = 3. Infrared sensors are used in a wide range of applications including here proximity robotic applications for distance and object detection, or color detection and tracking. They are mostly made up of Gallium Arsenide or Aluminum Gallium Arsenide. IR LEDs are usually made of gallium arsenide or aluminium gallium arsenide. UV-LEDs require unique and delicate production process. Description Our LED Shoebox Stadium Sport Lights are the top of the line in both quality and price. As a person approaches the sensor within 16 feet (5 meter) area, the sensor acts as a switch to turn on the attached optional LED lighting. I studied in no fillers, no hay que la Viuda de website that HER is having their names with getting tested. The currents that would flow through a red, green and blue LED connected directly to a 2 V supply. We have not tested product in this particular application as above stated reasons. We designed our devices to deliver medical grade power so your home treatments will be shorter. 1V for AlGaInP, 3. This is due to differences in the material properties of the junction. The Commercial Electric PT-8922R AC/DC Voltage Tester features solid structure and rubber shell. You can use the information from the last section to help you determine the exact value you need, but this is LEDs without math… So, start by popping a 330 Ohm resistor into the above circuit and see what happens. 3V so the remaining 2. RMG Automation - Manufacturer of Automatic Water Level Controller, Water Level Indicator with Alarm, Fully Automatic Water Level Controller, Dual motor pump controller, Multiple Tank controller, Electronic Water Level Controller, IR RF Light Fan remote Controller, RFID, Bio-metric Attendance and Access Controll, Fire Alarm, Timer Controller, Temperature Controller. Welcome to Discount Dimmers We sell high quality Lutron dimmers, Lutron switches, wallplates, fan controls, and lighting controls. Red LEDs have the flattest I/V curve above the knee. Power supply voltage (V):. Relay output rated at 12VDC/10A or 240VAC/5A. 3 and 5 V microcontrollers. This project also shows how to take digital input from a pic18f4550 by setting few pins digital hence reading the sensor value as 0 and 1. Design a method for determining whether the substrate of the LED chip is p or n type. So not only do you get more light from a LED replacement bulb, they use less wattage. We supply over 80,000 lightbulbs a month to businesses and consumers. Same day dispatch, carefully packaged and free if your order is over £48. Components Pinout. The Blocklite is an ultra-bright LED flashlight that simply attaches to a 9-volt battery for power. IR LED: The IR illuminator mostly uses IR LED. most remotes take two AA batteries, which is 3 volts (each is 1. It will light up in the camera viewfinder screen when you apply power. If that doesn't fix it, the LED is probably open circuit. Homojunction LEDs fabricated with amphoteric dopants were far more sensitive to displacement damage than. rhydoLABZ INDIA IR LED & Photo Diode Pair 5MM - Description : Pair of Infrared LED and Photo diode tuned to same IR wavelength. Relay voltage rating should be equal to the main power supply. The digital LED display is easy to use. Every light emitting diode (LED) has a current that they can safely handle. Home > LED Smart Controller Series > High Voltage LED Dimmer Controllers > AC110/220V 750/1500W, PWM LED Wi-Fi Bluetooth Music Time RGB Wireless RF 24 keys Infrared Remote Controller, For 164 or 328Ft RGB 5050 High Voltage led strip lights. Questions or a problem? Post it on the forums and we’ll help you out. Thus, limiting the current through the LED with the use of a series resistor is a common and simple practice. Orders over 199USD - Free shipping! LED 5mm Infrared (IR) - Hebei. 120MCD Intensity, T-1-3/4 Forward voltage 2. 0 volt supply use a 10K resistor There, no need to read further. Optronics’ ILL38CMB Corner-Mount LED Lamp has infrared sensing … Connect-to-Protect Introduces Industry's First Trailer Harness Plug Protectors October 23, 2018. We tore from release paper of ir led strip,don't letting down all the release paper. When the shaft is turned all the way in one direction, there are 0 volts going to the pin, and the input value is 0. IR Transmitter and Receiver pair can be easily made using 555 Timer, IR LED and TSOP1738 IR Receiver. We believe that carbon fiber sauna heater panels provide the best benefits. Here is a simple infrared detector circuit which gives a LED indication. Ultraviolet LEDs. They operate at a voltage around 1. The IR LED circuit we will build is shown below: All that the LED needs is 1. Then the base current for the transistor is far too low since it must be 18mA. CAUTION: This is a high-voltage, mains supply project. Even though an IR LED looks like a normal LED, the radiation emitted by it is invisible to the human eye. Photoelectric sensors, also known as photo eyes, emit a beam of light that is used to detect the presence or absence of items and equipment or changes in surface conditions. the 1A must not be on for longer than 100 us. It operates between 2 and 3. 94 and output 35987. Surface Mount Infrared LED Emitters. For the purpose of demonstration I have used DC motor and RGB LED module WS2812 as the things to control using IR remote. Everlight Electronics Co Ltd. Our lamps operate at around 850 nm, so we get plenty of mitochondria-activating red and near infrared light (600-1000 nm wavelength band) and they are ultra-low EMF. Aug 31, 2012 12:02 PM BigPanini \" Good deal! Fast shipping! Thanks. The transmitter LED emits a certain frequency of infrared, which the receiver LED will detect. You can remove the LED and resistor and connect any appliance you want with the help of relay. Shop online at low prices now!. They operate at a voltage around 1. IR range; Up to 20,000 hours of LED lifespan; Improve image quality in complete darkness and/or in low-light conditions; Built-in sensor will automatically turn on illuminator at night and off during the daytime; Weatherproof design and IP66 rated; 2-axis rotation for easy angle adjustment. Electronic Low Voltage Dimmers. The Last circuit was added on Sunday, November 5, 2017. Rated 4 out of 5 by sacornel from Great product, but not for LED's Have 2 one these for a year with no problems. You can use this sensors for your Roboics, Pulse Oximeter and other applications. Mains - Fire Rated. A series chain of LEDs behaves, electrically, like one unit with the same current draw as a single LED, but the voltage drop of all of the LEDs in the chain put together. Train Detection Detecting the presence or absence of a train, or its identity, is an important capability. A light Emitting Diode (LED) is an optical semiconductor device that emits light when voltage is applied. Infrared lamps often come in very precise lengths, so it’s essential that we stock a range varied enough to cater to those with more unusual requirements. i did read in one forum that if we increase the power to led the range increases ,so i did that and was able to achieve a range of about a 100 feet. 2 V, therefore a 5 Ω resistor is required when using a 3. There is however one problem. 75 to 3µm is known as the near infrared region. We provide a range of LED illuminators to create a safer global environment whether used in combination with surveillance cameras or as general area lighting. Surface Mount Infrared LED Emitters. Welcome to LEDsales : - AC lighting Assorted components Circuit boards Bargain bin Clocks and clock kits Cooling and heatsinks Freebies and lucky dip Kits and modules LED Torches and lights LEDs, LED drivers and accessories Miscellaneous items Nixies, neons, incandescent and vintage Power supplies and DC-DC converters Tools, equipment and materials Pet items Batteries and accessories Solar. Shop LEDSupply - Free Shipping & the lowest prices on Infrared (IR) high power LEDs. Measure the voltage across the LED for that setup, and add a quarter of a volt to get the LED’s forward voltage at 20-25mA. Will this 16ma emit sufficient IR rays to get minimum atleast 10cm range, when the Photodiode and IR led placed side by side position as in an obstacles avoiding robots toys…. if one of them goes bad - the rest of them will not work too. Spot heating locates the heater(s) above the areas you are located. 2V 30mA 100mW) Lighting Bulb Lamps Electronics Components Light Emitting Diodes 3. Pink LED output is pink. 5 for InGaN and 1. This Dual-Range Non-Contact Voltage Tester automatically detects low voltage and standard voltage. If you insist on doing it the proper way, looking stuff up in datasheets, read on. But, the IR LED and the photodiode circuit is a seperate circuit which is driven by a separate 5V VCC input and the voltage is being read by the MSP's input port. Given that a standard LED or IR LED will operate 24/7 at 20mA. 36 watt output at 12VDC, and 72 watt output at 24VDC. Gesture detection Gesture detection utilizes four directional photodiodes to sense reflected IR energy (sourced by the integrated LED) to convert physical motion information (i. Operating voltage can be between 6V to 15V. Figure 13 shows a current-voltage conversion circuit using an operational amplifier. com infrared LED lights can produce more light with less heat providing prolonged Led light life. The forward. 0mm Varifocal Lens, 18 IR LEDs, DWDR, Dual Voltage. Limiting current into an LED is very important. IR 5mm LED 10 Piece Kit with Voltage Dropping Resistors Make your own surveillance camera nightvision flood lamp or an infrared flashlight with IR LEDs. In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED). Mains - Fire Rated. The TENDLITE is the best LED light therapy device on the market! It's extremely popular among physicians and physical therapists and now it's available for home use too. IR radiation is just below visible light on the frequency spectrum. At the touch of a button, dimmer can go immediately to a favorite preset light level, fade-to-off, or adjust manually. 5g) The Grove modules at Grove Wiki have not been tested but most of them are compatible with the GrovePi either by directly using the Python code or making changes to the firmware. Blue light is minimized and energy distribution is optimized. com has 2-inch recessed lighting solutions, square and round options, housings and parts. around 2 or 3 volts. 0v,1050mA, life>50,000hrs. Wolf Eyes Tactical LED Torches are a long time supplier of IR LED Torches or Infra Red LED torches to both the LED hunting torch market and also the Police, Military and law enforcement market in both 850nm and 940nm range. There is however one problem. Some LED light fixtures may have LEDs built in as a permanent light source. Add an LED. The supplied pigtail allows you to use a 9 volt battery or a 12 volt DC power source. Chanzon 100 pcs 3mm 940nm IR Emitter LED Diode Lights (Clear Round Infrared 940 nm DC 1. As a person approaches the sensor within 16 feet (5 meter) area, the sensor acts as a switch to turn on the attached optional LED lighting. com offers 5,112 12v infrared light products. At the touch of a button, dimmer can go immediately to a favorite preset light level, fade-to-off, or adjust manually. IR range; Up to 20,000 hours of LED lifespan; Improve image quality in complete darkness and/or in low-light conditions; Built-in sensor will automatically turn on illuminator at night and off during the daytime; Weatherproof design and IP66 rated; 2-axis rotation for easy angle adjustment. Questions or a problem? Post it on the forums and we’ll help you out. i did read in one forum that if we increase the power to led the range increases ,so i did that and was able to achieve a range of about a 100 feet. 5mm Infrared LED Type: T-. LED Engin High Luminous Efficacy Infrared LEDs provide 5W or 10W power in an extremely small package. Buy a wide range of Infrared LED Devices from Rapid Online. VOLT’s underwater LED lights are known throughout the outdoor lighting industry for their robust build quality and beautiful design. achromatic doublet lenses for limiting chromatic and spherical aberration best suited for laser diode collimation fresnel lenses for general MID-IR to FAR-IR applications, transmission range: typ. Will this 16ma emit sufficient IR rays to get minimum atleast 10cm range, when the Photodiode and IR led placed side by side position as in an obstacles avoiding robots toys…. Open it up and remove the IR LED. The higher the Watts the less energy efficient they become because they turn more and more electricity into heat which is wasteful and needs management. P60 Style 850NM InfaRed IR Drop In LED Flashlight Upgrade Engine - Quickly and easily turn your flashlight into an IR infrared illuminator for hunting, tactical & Night vision use!. This sensor circuit below is a low cost - low range infrared object detection module that you can easily build at home using IR LED's. When the voltage of the LED supply is higher than VDD, it's possible that even after the forward voltage of the LED the resulting voltage is still as high or higher than VDD. 0v,1050mA, life>50,000hrs. The integrated LED lights are perfect for quick and easy installations, while the more versatile lamp-ready models allow you to install any of VOLT’s MR16 bulbs. Offers an IR sensor and conveniently operates on standard household voltage. If that doesn't fix it, the LED is probably open circuit. Specifically, the difference between the battery voltage and the forward voltage of the LED multiplied by the bias. 3V, resistor for. From non-contact voltage detectors and voltage testers with continuity detectors, to open-jaw current testers and open fork testers with FieldSense® technology (for getting voltage and current measurements without test leads), these testers are accurate, safe and easy to use. This Infrared (940nm) 5mm LED is invisible to the eye but works great for illuminating dark spaces (for cameras) or transmitting data just like a TV remote control. 0v,1050mA, life>50,000hrs IR infrared LED , IR Infrared Leds High power led 850nm Infrared 10 watt IR led light, DC 5-6. The sensors made by \"Sharp\" have IR LED equipped with lens, which emits narrow light beam. 9V battery not included. These LED units contain advanced drivers which use pulse width modulation to control heat buildup, which lengthens the life of the LED light significantly as compared with Led lighting using voltage regulators. This makes it harder to diagnose problems with infrared LEDs,. The infrared LED is modelled as two Si switching diodes in series: It is possible to simplify the avalanche breakdown driver circuit by removing the pulse-shaping inductor, and placing the IR LED directly in the 2N2369a emitter circuit, provided that care is taken not to exceed the LED peak low duty cycle current of 1 Amp. An IR LED is a type of LED which emits light in the frequency range of Infra-Red, hence the name 'IR' LED. LED Engin High Luminous Efficacy Infrared LEDs provide 5W or 10W power in an extremely small package. Humidifiers. This creates more radiant heat, and allows the heat lamp to be much more useful as a source of warmth than a regular lamp. 8,843 results for infrared LED light Save infrared LED light to get e-mail alerts and updates on your eBay Feed. Assuming you have proper current control resistor in series with the IR LED, turn on the power Supply and measure the Junction voltage across the diode. So we are using a PNP transistor. few centimetres to several feets, it depends upon the type of IR transmitter and the manufacturer. They are mostly made up of Gallium Arsenide or Aluminum Gallium Arsenide. Calculate a working current (Iwork) for the LED—typically about 75 percent of the maximum current. This is due to differences in the material properties of the junction. This is specified in the forward voltage specification. Philips infrared lights in stock for your home or business. An IR LED (transmitter) emits IR light, that light gets reflected by the object, the reflected light is received by an IR receiver (Photo Diode). Figure 3: 555 timer output, frequency of 40 kHz. For example, put three of your IR LEDs in series, and calculate R so that 1. 3V, resistor for. It's commonly used in conjunction with the IR receiver to support a wireless communication between 2 or more devices. Lutron offers abundant choices in stand-alone dimmers and switches. Ultraviolet LEDs. This is the datasheet for the IR LED we are using for this circuit: IR LED Datasheet. CYLINDER LENSES - GLASS EUR USD. Going beyond that maximum current, even briefly, will damage the LED. Intensity of LEDs By Robert Cong and the Jameco Technical Team Lighting Specifications Explained Many people often wonder what all those LED specifications mean. CAUTION: This is a high-voltage, mains supply project. Unfortunately, this means that some of the battery power is lost as heat in the resistor. The proposed pixel circuit was verified using both circuit analysis and circuit simulations. Red LEDs have the flattest I/V curve above the knee. At Baja Designs, our military infrared lights can handle whatever the road throws at them. A close standard resistor is 180 ohms. Heat lamps operate on the same principles as regular incandescent lamps, but produce much more infrared radiation. The proposed circuit could increase the aperture ratio and compensate for the IR drop and threshold voltage variations in active matrix organic light- emitting diode devices, where I and R are current and resistance of the supply power lines. Our Goals are to be Specialists in the latest LED products and to become the most preferred LED supplier by offering the latest Quality LED Modules, LED Strip Lights and general LED Lighting products at the most affordable prices and to provide excellent After Sales Service!. At this point, the sensor is functional and we will add a 1k ohm in series with a blue LED. LED types by Color, Brightness, and Chemistry This is an overview of the different types of LEDs. UV-LEDs require unique and delicate production process. Watts, lumens, flux, wavelength, candle power, candelas, millicandelas are just a few of the many terms and units of measurement used to describe light intensity. 100mA = 130 ohms. The picture of a typical Infrared LED is shown below. Assuming you have proper current control resistor in series with the IR LED, turn on the power Supply and measure the Junction voltage across the diode. Its output voltage (VOUT) is expressed as VOUT = IC × R1. Usually, the signal from a microcontroller, or logic gate, does not possess sufficient drive current to power an LED directly. Amount of reflection and reception varies with the distance. \"When you use a proper grounded body voltage meter, and you're measuring body voltage instead of just the voltage around the sauna, you find that when you sit inside a far-infrared sauna with a body voltage meter, you'll get thousands of volts per meter, thousands of millivolts, depending on the meter you're using. Most of the data supplied in this manual refers to the short circuit current characteristics of the photodiodes. Being committed to supply comfortable and natural lighting. IR LED emits light, in the range of Infrared frequency. Essentially, Magnalight. This is a very simple, clear infrared LED. Aurora LED Downlights - IP65. That is a lot of energy which costs significant amount of money. KT&C KPC-N700NH10, Infrared Outdoor variable focus (2. This ProFusion Heat 6-Tube Infrared Quartz Heater with LED Display's attractive wood cabinet means it looks as good as it makes you feel. Blue light is minimized and energy distribution is optimized. So not only do you get more light from a LED replacement bulb, they use less wattage. This is due to differences in the material properties of the junction. Homojunction LEDs fabricated with amphoteric dopants were far more sensitive to displacement damage than. Photodiodes are used in robots and devices as light sensors. The photon sensor is used to detect when light levels are low. Hence, they are called IR LED's. REQUIRES CURRENT LIMITING & MOUNTING TO HEATSINK WITH THERMAL PAD. I found an test of someone how measured the maximum speed of a GPIO port. To put this long life in perspective, a 25,000 hour rated LED light bulb that burns for 8 hours a day will last for an average of 8. AC110/220V 1500W, 24Keys 16 Color IR LED Controller, For Bridge Lighting Project, Connect 110V 164Ft High Voltage SMD5050 RGB LED Strip,Neon Guided by a belief that LED lighting would be an integral part of everyday life's illumination, superlightingled. 5 volt led fasher runs more than a year on a single 'd\" cell and alternately flashes 2 LEDs at about a 1 second rate. com offers a wide variety of Lutron Products that will fit any budget or any need. The problem is that I do not know the voltage of the led. High-power LED Dual Array Red/Near-InfraRed 660nm/850nm. 3mm LEDs are the smallest and used in tight-fitting applications, while 8mm and 10mm models are used where you want to get out as. 02 = 175 ohms. An IR LED is a special LED which emits infra red rays in the range of 760nm. The photodiode here works as the IR receiver which receives infrared rays of Infrared LED. They also can be used in products ranging from TV remotes and auto-focus cameras to electronic gates. 7 V for a red LED or 1. It is a CMOS version designed for IR transmission. How Do LED Lights Burn Out? In order to answer the question, Do LED lights burn out? it is necessary to first understand how they work. All irradiations were done with 50-MeV protons. As an innovator in the field, Sylvania’s LED light bulbs are some of the most advanced and reliable on the market. Shop LEDSupply - Free Shipping & the lowest prices on Infrared (IR) high power LEDs. My receiver outputs the 5v supply i give to it and then this output voltage drops to around 0. IR illuminators available with brightness control and adjustable delay and lux switching all set up via the supplied remote control. *With wide detection range. 206 Uniondale, NY 11553 516. Includes a 9 Volt battery, meets mil-specs and is made in the USA. Use to detect when of your machine passes by a particular point. High quality, easy-to-use digital panel meters at very economical prices. Ultraviolet light is divided into three bands: UV-A, which is fairly innocuous; UV-B, which causes sunburns; and UV-C, which kills things. Optronics’ ILL38CMB Corner-Mount LED Lamp has infrared sensing … Connect-to-Protect Introduces Industry's First Trailer Harness Plug Protectors October 23, 2018. Since their inception they have grown to become a leader in the LED lighting sector in both Italy and across the globe due to their advanced technical knowledge, stringent quality control and mission to always bring new and innovative products. They are air tight, so using them in damp locations is acceptable. 5 for InGaN and 1. If you insist on doing it the proper way, looking stuff up in datasheets, read on. This page will help you get to know your Xbox One console a little better. The red would hog the majority of the current. If you have a growing interest in electronics and would like to get started, this is the right place for you! Our products range from general prototyping components to integrated development boards including Arduino, Raspberry Pi and much more. · To find the forward voltage at that current, · I · connect the LED directly to the supply (no resistor) and slowly increase the voltage from zero until the current reads 20mA. Essentially, Magnalight. LightinTheBox. 5 V: 126° Zener diode: SMB1N-375V-02: 375 nm: 560 mW: 500 mA <4. Line voltage (120V) flood lights are ideal for commercial and municipal use. The LED forward-voltage drop: For most infrared LEDs, the forward-voltage drop is 1. At Baja Designs, our military infrared lights can handle whatever the road throws at them. IR Light Beam Circuits. OSRAM Opto Semiconductors Our extensive technological know-how and our passion for innovation make us a global leader in the field of optical semiconductors. SunLike Series natural spectrum LEDs are similar to sunlight which radiate a uniform amount of energy at all wavelengths, including infrared and ultraviolet as the optimal light source for plant. In other words, LED is an optical semiconductor device that converts electrical energy into light energy. Volts is abbreviated V. SYLVANIA LED Dimmer Compatibility List Files Visit us at these events and tradeshows to see the most innovative products and solutions we have to offer. The Blocklite is an ultra-bright LED flashlight that simply attaches to a 9-volt battery for power. Current is usualy 20mA, for UFO LEDs current is: 30mA for InGaN and 50mA for AlGaInP. So it should be possible to encode the IR codes fully in software. A property of light-emitting diodes (LEDs) is that they produce a certain wavelength of light when an electric current is applied--but they also produce a current when they are subjected to the same wavelength light. Visit your local Bunnings Warehouse today. The LED current is about 180mA which might burn out your IR LEDs. Up to 70 meters / 230 ft. com came into LED industry and keep up with the advanced technoloty. You should be able to check this LED by viewing the LED with a camcorder or a digital camera, as you have been doing. Capri IR Sensor LED Lighting L & S is an Italian Company set up in 1977 in Maron di Brugnera, Italy. A typical IR LED forward voltage drop is about 1. The IR sensor module consists mainly of the IR Transmitter and Receiver, Opamp, Variable Resistor (Trimmer pot), output LED in brief. com, the world's leading wholesale and retail website. Thus, limiting the current through the LED with the use of a series resistor is a common and simple practice. The detector will measure the light scattered or reflected by a surface a short distance away. We focus on high quality sign lighting LED modules, fast delivery. But there is still the question how to drive the IR led. Never connect an LED directly to a battery or power supply because the LED is likely to be destroyed by excessive current passing through it. • In 1962, Nick Holonyak Jr.","domain":"optical_engineering"}
{"url":"http://carsgadget.com/audi_accessories/tproduct/131552221-562371290760-universal-front-or-rear-view-camera","date":"2023-09-25T14:47:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508977.50/warc/CC-MAIN-20230925115505-20230925145505-00133.warc.gz","language_score":0.89032381772995,"token_count":170,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__14802164","lang":"en","text":"Universal camera can be attached as the front or rear view camera on any vehicles. The camera is great for cars with grills where a special cameras cannot be fitted. For example Audi A4/A5 B8 (models 2008-2011); Audi S4, RS4, RS5, Q5, RSQ5 grills, most of Mercedes Models, Mazda CX-9, CX-5 with a new logo). Please note the installation requires pre drilling 2 small holes for the screws to attach the camera's adjustable bracket.\nThe camera allows you to see objects in front of the car and makes your parking much easier. Compatible with all our camera interfaces. This camera will not work with OEM LCD by itself, you need to have CarsGadget Backup Camera Interface or Smart Multimedia Interface installed in your car first.","domain":"optical_engineering"}
{"url":"https://www.allperfectstories.com/contact-lenses-for-better-vision/","date":"2022-05-17T11:21:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662517245.1/warc/CC-MAIN-20220517095022-20220517125022-00518.warc.gz","language_score":0.9437507390975952,"token_count":724,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__49643031","lang":"en","text":"Nowadays, most of the peoples are familiar with the contact lenses. The contact lens is nothing but a medical device that you can wear it right on the corner of your eye. People can correct their refractive errors by using contact lenses. They also have the capability to improve the power of the eyes. If you want an accurate vision with enough safety, then using the contact lens is correct to measure but it should be handled with care and used under proper supervision. The contact lens must be selected as per the doctor’s instruction. It is considered the proper replacement for your eyeglasses. Let’s see some more effective information here regarding this that will help you choose the right lenses.\nHere are Different Type Of Contact Lenses And The Benefits:\nThe water content in these contact lenses is very low and they are difficult to wear. The use of hard lenses has been drastically reduced in years, but they are recommended in some special cases.\n- They are customizable and they easily fit your eyes that are why the sharpness of the vision is much better with these types of lenses.\n- Inflammatory conditions are very low because the hydration levels are very low.\n- The hard lenses are very easy to clean and handle.\nWhile compared with the hard lens, the semi-soft lenses have more water content. Following are the benefits of semi-soft lenses.\n- They help you to restore the power of the eyes, vision sharpness is also better when compared to hard lenses.\n- Compared with the hard lens, the semi-soft lenses are more comfortable to wear, because it has high water content.\n- They can be worn continuously for 12 hours.\nThe soft lens is considered as the most familiar and popular contact lenses and is being used widely nowadays. Due to the high level of water content in the soft lens, it can be worn for a longer time.\n- They are more pleasant to wear for a long time. and can be worn for up to 14 hours.\n- They are supremely appropriate for sportsmen, actors, pilots, and air hostesses.\n- They are easy to maintain and clean.\nImportance Of Contact Lens Hygiene:\nAlthough there are, various horror stories about contact lenses you will face any problem with lenses only when you don’t take care of proper hygiene. You have to follow some of the points while wearing the contact lens.\nHere are a few things to be kept in mind while using these lenses:\n- Every time you have to wash your hands with mild soap in clean water before going to insert or remove your contact lens.\n- If the blister of the contact lenses gets broken it means, you should not use it.\n- The wearing time of the contact lenses is mentioned in the packaging. If the time of wearing is mentioned for 10 – 12 hours per day means you shouldn’t extend it beyond this time.\n- You should remove the lenses while sleeping.\n- You should keep the lenses in the solution they come with.\nBefore wearing the lenses you need to get your eye tested with an ophthalmologist who will not only test your eyes but also recommend you the right lens that will be comfortable for your eyes. In case you face any side effects after wearing the lenses like burning or itching you must immediately see your doctor. These are all the instructions the people should follow while going for the contact lenses.","domain":"optical_engineering"}
{"url":"http://www.fuleidk.com/mmo/manuvision/en","date":"2022-11-26T23:49:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446709929.63/warc/CC-MAIN-20221126212945-20221127002945-00521.warc.gz","language_score":0.9099098443984985,"token_count":176,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__59691005","lang":"en","text":"ManuVision Intelligent Machine Vision Platform is an edge-based machine vision inspection software system powered by deep learning technology, designed to locate, measure, detect, and recognize common defects or key metrics. The platform comprises three components, namely, Trainer, Designer, and Runtime, and covers the full spectrum of functions from image labeling, deep learning model training, model testing, inspection pipeline authoring, and online inspection. It significantly improves the quality and reduces the costs for delivering inspection solutions. ManuVision Intelligent Machine Vision Platform is equipped with our proprietary industrial cloud platform, which may operate in a public cloud or on-premise. With WIFI or 5G network, ManuVision running at edge and industrial cloud platform could exchange information bilaterally, including making upgrades to algorithm models enabled by our over-the-air technology, updating status of devices in operation and operation logs.","domain":"optical_engineering"}
{"url":"https://www.dispensingsystem.com/accessories/","date":"2024-04-12T12:02:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00435.warc.gz","language_score":0.8541135787963867,"token_count":518,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__178424087","lang":"en","text":"UltraScan® PRO is an ultra-high-end professional spectrometer ideal for quality control and research\nColor measurement. UltraScan® PRO can measure not only reflected and transmitted colors, but also spectral reflections\nRate, transmittance and fog. It complies with all CIE, ASTM and USP standards for color measurement.\nUltraScan® PRO delivers excellent inter-instrument consistency, spectral measurement accuracy and unsurpassed long-term stability.\nWhether solid, liquid or transparent film, it provides an accurate and reliable color measurement results.\nThe UltraScan® PRO dual-path optical system features two high-resolution holographic diffraction gratings with an effective bandwidth of 5nm. The system uses highly sensitive infrared and 512 diode matrix detection diffraction gratings. Three sets of high-intensity long-life flash xenon lamps are used for instrument illumination.\n• Opaque, transparent and translucent samples can be measured\n• 3 reflectance measurement areas available\n• Provides both specular reflection measurement and removal specular reflection measurement ii\nA variety of modes can be used to detect gloss and texture on reflected colors Impact.\n• Industry-leading oversized transmission chamber with openings on three sides and one-button test\nThe measurement button makes sample measurement convenient.\nTextile Printing Paste Filter\nThis kind of filter is basket filter with 80 – 120 meshes. It is suitable for on-line filtration of paste in textile printing system.\nSolvent-Based Material Filter\nThe shell and filter element are made of stainless steel with fast-loading structure. The seals can withstand solvent. The filtration mesh is 80-300 mesh. They are suitable for on-line filtration of low-viscosity such as solvent-based ink, paint, PU pigment and various solvents.\nWater-Based Material Filter\nThe shell is made of macromolecule material and the filter core is stainless steel. It is suitable for water-based materials with low viscosity. The filtration mesh is 80-300 mesh. It is suitable for on-line filtration of water-based ink or paint.\nIndustrial Control Systems\nBased on our strong R&D capabilities, we have developed the printing machine data online acquisition system, PU synthetic leather wet batching central control system, polyurethane production central control system and so on.","domain":"optical_engineering"}
{"url":"https://fitforthesoul.com/keeping-your-eyes-healthy-is-vital-and-do-polarised-lenses-really-make-a-difference/","date":"2023-11-29T19:45:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100135.11/warc/CC-MAIN-20231129173017-20231129203017-00239.warc.gz","language_score":0.9383054375648499,"token_count":658,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__266400180","lang":"en","text":"Sunlight is usually reflected and absorbed in several directions and this can cause eye injuries if you don’t have proper eye protection.\nSunlight reflected horizontally from land, water and cars is common in the way we all live today and this light that is reflected back horizontally, producing a strong glare.This causes interference with vision on land and water.\nNormal sunglasses are known to provide basic protection against both vertical and horizontal ultraviolet rays. However, the sunglasses do not diminish the glare from the horizontal rays that are reflected.\nPolarized have a built-in laminated filter to permit only vertical rays of light to pass through and blocks horizontal rays, eliminating glares. This is usually seen during fishing or boating as you’ll suddenly be able to see through surfaces.\nNormally, you would see reflections from the sky and sun.Polarized sunglasses are related to sunglasses. However, ordinary prescription glasses can also have polarized lenses.\nAdvantages and Disadvantages of Polarized Lenses\nA pair of sunglasses of high quality include a polarized lens, but in saying that you can also have a cheap pair of sunglasses frames that you can replace the current lenses and make them polarised. There are several online companies that can provide this service for you. Polarized lenses increase visual comfort, diminishes glare and reflection, enhances clarity of contrast and vision, faithfully conveys colors and reduces eye strain.\nPolarized lenses makes it hard to view LCD screens. This is because of the effect they create on images, making them disappear on screens at some angle. Heavy machine users and pilots are usually discouraged and disallowed from using polarized lenses. This is attributed to the difficulty of operating machines when wearing polarized lenses.\nPolarized lenses are recommended for skiing. However, they might compromise contrast in some lighting conditions, making it hard to distinguish between snow, ice patches and moguls. They are more costly than a regular lens.\nThe additional expense is worthy for individuals who require polarized lenses. However, it becomes an additional expenditure for those who just need regular sunglasses.\nDo Polarized lenses Provide protection against Ultraviolet Rays?\nThey provide protection against the sun’s ultraviolet rays. Keep in mind that they offer different but not increased protection from the ultraviolet rays.Depending on your use for sunglasses, polarized lenses offer no noticeable improvement over normal standard glasses.\nNot all lens models protect against ultraviolet rays. Before buying sunglasses, verify the level of ultraviolet ray protection they offer. This is usually marked on the right side of the lenses.\nDo Your Eyes Need Polarisation Protection?\nThe best way to know if you need special lenses is consulting your eye physician during an eye exam. If you are having issues with your current sunglasses and feel that you need polarized lenses, visit an eye doctor.\nEvery eye case is different and your doctor can determine if you stand to benefit from polarized lenses. If you are into boating, start using polarized glasses on the water. However, if you just want an increased eye protection from ultraviolet rays, consider using dark lenses.\nLeading manufacturers of glasses offer a variety of glass models with polarized coatings. Therefore, whenever the sun casts its rays into your eyes, reach out for your polarized lenses.","domain":"optical_engineering"}
{"url":"https://www.ingos-infrastructure.eu/dial-system-proves-potential/","date":"2023-03-22T13:03:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943809.76/warc/CC-MAIN-20230322114226-20230322144226-00676.warc.gz","language_score":0.923213541507721,"token_count":188,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__15471019","lang":"en","text":"Partner UEDIN works on a DIAL remote sensing device that potentially will allow to measure vertical gradients of CO2 and CH4 up to several kilometers height. The first prototype results look very promising and even shows potential for using the device for boundary layer height and aerosol observations. Read more in the deliverable report.\nA time-versus-range image showing variation in the return signal of the DIAL prototype of power over an interval of 9 min. The bottom blue region is the lowest 200m where the system is “blind” due to its optical design. The red and yellow region on top of that shows the scattering by gases and aerosols in the boundary layer (up to 920 m), followed by the residual layers in the lower troposhere. The top layer of red and yellow arise from mid-level clouds. Return signals from clouds have been received from heights up to 5.8 km.","domain":"optical_engineering"}
{"url":"https://www.produtech.it/en/coil-processing-insights-and-techniques/coil-fed-laser-cutting","date":"2022-08-15T16:00:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572192.79/warc/CC-MAIN-20220815145459-20220815175459-00011.warc.gz","language_score":0.8923323154449463,"token_count":939,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__23071254","lang":"en","text":"Coil fed laser cutting\nProdutech has developed excellent know-how in manufacturing with coil fed laser cutter process, facilitating and speeding up processes.\nProdutech has developed a range of coil-fed laser cutting machines, designed to meet the increasingly specific needs of the market. Flexibility is the keyword, in addition to high productivity. The traditional sheet metal laser cutting machines cannot guarantee high performance because they require big stocks and a continuous sheet loading process.\nCoil-fed laser cutting machines, instead, are designed to cut faster due to the continuous and automatic supply of metal material: the processes for uploading raw materials and unloading cut parts are optimized and easier.\nProdutech coil fed laser cutting machines\nProdutech’scoil fed laser cutting machine is called ISEO and two features differentiate it from the rest of the market:\n- It’s specifically designed to cut metal sheets straight from the coil. A coil-fed laser cutting machine is much more efficient than a regular sheet-fed machine and can provide many advantages;\n- It works with an optic-fiber laser source, instead of a CO2 laser.\nIt’s available in two different series:\n- ISEO A1, the standard series of this model which provides extremely precise cuts, even on small parts;\n- ISEO A2, the best solution for users looking for accuracy while producing parts and high production speed, which is made possible by an additional Xa axis.\nAre you interested in Produtech’s coil-fed laser cutting machine?\nWe will assist you with a personalized consultation.\nCoil fed laser technology: all the advantages\nMore advantages are resulting from optic-fiber coil-fed laser cutting compared to the CO2 laser, in particular:\n- The laser allows to cut faster, with greater productive autonomy and higher productivity;\n- The fiber laser requires very little maintenance;\n- The supply of metal material is continuous and automatic, without any operators who periodically load the machine with metal sheets;\n- The processes for uploading raw materials and unloading cut parts are optimized and easier;\n- In addition to coil laser cutting, Produtech implemented its sheet metal laser cutting machines leveraging optic-fiber laser sources.\nOptic-fiber laser is easy to handle, precise and powerful; it requires very little maintenance and so it guarantees significant cost and energy savings. Last, when it comes to very thin metal parts, the fiber laser sparks the cut in a better way and works faster.\nLatest generation coil-fed laser cutting machine\nProdutech punch laser cutting coil-fed EFFICOIL is the ultimate machine for laser cutting. It combines two different technologies: punching and laser. EFFICOIL has two working heads, perfectly synchronized, which operate concurrently but are completely independent. The electric punching unit works on outlines and deformations, while the optic-fiber laser-cutting unit works on internal and external profiles, with obvious benefits:\n- Precision: EFFICOIL allows to manufacture details with the highest precision;\n- Speed and productivity: the action of punching and laser cutting at the same time allows reduced processing time and, working independently on two different portions of the same coil, increase productivity;\n- Energy and CO2 savings during coil sheet processing: EFFICOIL does not require accessory machines. Plus, EFFICOIL produce very little CO2 and vapors created by lubricant liquids;\n- Raw material savings: thanks to coil feeding and nesting programs, the arrangement of the parts to be produced can be optimized by using a wider initial surface (long coils instead of pre-cut single sheets);\n- Reduction in workspace occupancy: EFFICOIL occupies less space inside the production site; also, using coils instead of single sheets on pallets further reduces the occupied space;\n- Reduction in manpower for loading raw materials: no need to move products away from different machines, collect scraps and place the final products on pallets.\nCoil-fed laser vs sheet laser\nAt this point, we have a complete overview of the advantages of a coil-fed laser cutter machine compared with a sheet laser machine, which can be summarized as follows:\n- Producing metal blanks using coil-fed laser cutting technology allows for greater material optimization, that will save you money;\n- Reduction of productivity time;\n- Reduction in manpower need;\n- Higher precision of cut.\nAre you interested in our coil-fed laser cutting machine?\nWe will show you all its incredible advantages.","domain":"optical_engineering"}
{"url":"https://sotirioulab.org/equipment/","date":"2023-02-05T23:57:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500294.64/warc/CC-MAIN-20230205224620-20230206014620-00123.warc.gz","language_score":0.8282085657119751,"token_count":1488,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__178248873","lang":"en","text":"Our lab is equipped with state-of-the-art instruments largely financed by the additional equipment funding from our ERC Starting Grant. If you are interested in performing measurements with one of them, please contact Prof. Sotiriou.\nFlame spray pyrolysis reactor\nFlame spray pyrolysis represents the most versatile tool in flame nanomanufacture offering the possibility to produce single- and multi-component nanoparticles and nanoparticle films on substrates at high production rates (g/h) with remarkable reproducibility. Our setup is equipped with two nozzles for double-nozzle synthesis, as well as with an enclosed coating reactor for core/shell nanoparticles.\nRigaku MiniFlex is a compact desktop powder X-ray diffractometer for qualitative and quantitative analysis of crystal size as well as phase composition.\nN2 adsorption for surface area and porosity analysis\nMicromeritics Tristar II Plus 3030 and FlowPrep. The Tristar II Plus is an automated, three-station, surface area and porosity analyzer that delivers excellent performance and speed of analysis.\nPerkin Elmer LS55 fluorescence spectrophotometer equipped with plate reader accessory for fluorescence, phosphorescence and bio- and chemi-luminescence measurement modes.\nUltraviolet and visible (UV/vis) spectrophotometer\nAnalytik Jena Specord 210 Plus with range 190-1100 nm, variable bandwidth, scanning, dual beam, for general applications, single cell holder, and also equipped with an integrating sphere.\nScanning electron microscope (SEM)\nThermo Scientific Phenom Pharos is a desktop SEM with a FEG source that makes crisp, high-brightness images with resolution <4 nm and magnification up to 1,000,000X. The systems is equipped with an EDX sensor for elemental analysis.\nFourier transform infrared spectroscopy (FTIR).\nThe Agilent Cary 630 FTIR spectrometer is a compact and versatile instrument providing superior quantitative and qualitative information for routine analysis of solids, liquids, and gases. It is equipped with the transmission, attenuated total reflection (ATR), and diffuse reflectance modules.\nDynamic and electrophoretic light scattering (DLS-zeta potential)\nThe Zetasizer Ultra is the world’s most capable combined DLS and ELS system, incorporating Non-Invasive Back Scatter (NIBS®) and, uniquely, Multi-Angle Dynamic Light Scattering (MADLS) technology for the measurement of particle and molecular size. The system is equipped with a titrator.\nHigh performance liquid chromatography (HPLC)\nThe 1260 Infinity II LC System is a robust HPLC that offers the widest choice of modules for analytical HPLC and entry-level UHPLC.\nElectrochemical ion selective electrode setup\nThe Mettled-Toledo SevenCompact™ pH-meter and ion meter series offers versatility, ease-of-use and durability. Our setup is equipped with Ag and Ca ion selective electrodes.\nThis manual laboratory press is ideal as an FTIR press, KBr press for up to 25 ton load.\nCarbolite chamber furnace and sintering oven CWF 5L with chamber volume 5 L and temperature up to 1300 °C.\nGlass Oven B-585 Kugelrohr\nThis glass oven equipment is suitable for distillation, sublimation, freeze-drying or drying of small samples. The whole length of the oven tube heats up to a maximum of 300 °C. The oven is equipped with a graphic display capable of a manual and programmable modes. It features programmable 3 step temperature / time control setting options.\nNear infrared lasers (emission wavelengths 785, 808 and 980 nm) coupled with optical fibers and with tunable power output equipped with collimator (diameter 5 mm) and diffusers (square and circular shapes).\nTwo spectrometers from Ocean Optics, one with range 350 nm to 1000 nm with a linear silicon CCD array detector (FLAME-S-VIS-NIR), and one with range 950 nm to 1650 nm with an InGaAs linear image sensor (FLAME-NIR). coupled with an optical fiber input.\nXenon light source\nA Xenon Light Source 300W Monochromatic Light from Asahi Spectra with Filters, with features as: high power monochromatic light, IR heat blocking, Built-in filter wheel, No need of optical axis alignment, Touch panel operation, RS-485 remote control.\nThe Testo 871 thermal imager combines high infrared resolution with professional measuring performance and easy handling with IR resolution of 240 x 180 pixels, via integrated testo SuperResolution Technology 480 x 360 pixel, and a broad temperature range from -30°C to +650 °C.\nThe Laurell Technologies WS-650Mz spin coater will accommodate up to ø150 mm wafers and 5″ × 5″ (127mm × 127mm) substrates, and features a maximum rotational speed of 12,000 RPM.\nWanhao Duplicator 4S is an FDM printer with a build volume of 22.5 x 14.5 x 15 cm. It has a dual extruder that can print two build materials such as ABS, PLA and other filaments or it can use dissolvable support material such as PLA to print. The Wanhao can reach 100-500 microns layer height.\nThe Anycubic Photon DLP is a 3D printer equipped with an easy to use 2.8 inch color touch screen. It works with resin. DLP stands for Digital Light Processing. During this process an UV light source is used to harden liquid resin (polymerize). Resolution 47µm. 3D print size of 115 x 65 x 155 mm.\nThe Moai 130 SLA printer is a compact SLA printer that brings high-resolution printing to the desktop. This printer offers the high-quality prints and is all about flexibility and performance. Build Volume: 13 x 13 x 18 cm and 70-micron laser spot.\nRaman spectrometer probe\nRaman spectrometer (QE Pro-Raman-532, Ocean Insight) collects Raman scattered light from 532 nm excitation. This spectrometer has the Raman shift from 150 cm-1to 4000 cm-1, the optical resolution of 0.42 nm FWHM, the integration time from 8 ms to 3600 s, and a 1044×64 element CCD detector. Equipped with a Raman probe and sample holder.\nBacterial and cell culture labs\nWe have state-of-the-art lab space for culturing in-vitro bacteria as well as mammalian cells, equipped with all relevant instruments (autoclave, incubators, centrifuges, microplane readers, etc).","domain":"optical_engineering"}
{"url":"http://en.ketelong.com/product/9/","date":"2023-05-29T04:33:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644683.18/warc/CC-MAIN-20230529042138-20230529072138-00695.warc.gz","language_score":0.8858461976051331,"token_count":524,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__58252987","lang":"en","text":"Ketelong Polycarbonate corrugated sheets are made of premium polycarbonate granule with UV protection. Its excellent transparent roofing material with high light transmission and impact resistant capacity. We provide 10 year warranty for all types of our polycarbonate sheet , OEM service is available.\nCortrong PC sunshine board (hollow board) is made of polycarbonate raw materials and co extrusion of UV with high concentration. When the impact force is hit by 21m/s hail, there is no crack. It has the characteristics of light weight, light transmission, impact resistance, heat isolation, flame retardant and durability. Besides the above characteristics, the crystal bright sunshine board has the effect of \"crystal clear and bright\", which makes the light penetrate more soft and has better aesthetic visual effect.\nLow-E PC board, also known as low infrared radiation PC board, is a kind of heat reflection energy-saving material. It is based on the traditional PC endurance board and PC sunlight board, maintaining the original physical properties and light transmittance under the premise, by adding infrared reflection transparent particles, made with infrared reflection ability of the plate, is a new member of the plastic plate family.\nCortelon PC endurance board is made of polycarbonate resin particles. Polycarbonate resin is an amorphous thermoplastic engineering material with excellent mechanical, optical, electrical and thermodynamic properties. Polycarbonate resin is one of the most widely used engineering materials in the world, which has made revolutionary contributions to the product performance of almost every industry. From greenhouses and swimming pools to industrial buildings, office buildings, football fields and civil buildings, cortelon PC panels provide value-added lighting solutions for various buildings.\nFounded in 1988, Guangdong Hongbo Building Materials Technology Co., Ltd. is a national brand manufacturer of PVC roofing materials in China.\nGuangdong Hongbo Building Materials Science and Technology Co., Ltd.\nFoshan Ketelong Building Materials Import and Export Co., Ltd.\nNo.6 (f1-f9), South B community, central science and Technology Industrial Zone, Leping Town, Sanshui District, Foshan City, Guangdong Province\nCopyRight @ 2011-2021 Guangdong Hongbo Building Materials Science And Technology Co., Ltd. 粤ICP备13029100号 Powered by www.300.cn","domain":"optical_engineering"}
{"url":"http://mingliangkj.en.made-in-china.com/product/wjQnFhWJbGcI/China-Surgical-Scars-Removal-Vaginal-Tightening-Fractional-CO2-Beauty-Laser-with-40W-RF-Tube.html","date":"2017-12-14T08:09:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948542031.37/warc/CC-MAIN-20171214074533-20171214094533-00562.warc.gz","language_score":0.75725919008255,"token_count":1297,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__31829234","lang":"en","text":"Surgical Scars Removal/Vaginal Tightening/Fractional CO2 Beauty Laser with 40W RF Tube\n|FOB Price:||US $4,800-6,800 / Piece|\n|Min. Order:||1 Piece|\n|Min. Order||FOB Price|\n|1 Piece||US $4,800-6,800/ Piece|\n|Payment Terms:||L/C, T/T, Western Union, Money Gram|\n- CO2 fractional laser for surgical scars removal\n- 37 Products\n- Product Image\n- Product Name\n- FOB Price\n- Payment Terms\n- Product Package\n- Product Attribute\n- Product Table\n- Model NO.: co2\n- Theory: Laser\n- Portable: Non Portable\n- Certification: Ce, ISO, SGS, TUV, Sfda\n- Ship Method: DHL, UPS, TNT, EMS, Air Freight\n- Service: OEM, ODM\n- Power: 40W RF/10W RF\n- Scan Pattern Size: 0.1mm-2.6mm, 0.1mm-20mm\n- Trademark: MLKJ\n- Specification: 72cm*53cm*122cm package\n- HS Code: 90189090\n- Type: Scars Removal Laser Equipment\n- Application: Salon, Home, Medical\n- Medical Device Regulatory Type: Type 2\n- Warranty: 2 Years\n- Color: Any Color You Like\n- Screen: 8.4 Inch True Color Touch Screen\n- Spot Size: ≥0.1 mm at The Focus\n- Internal: 1-10ms\n- Transport Package: Aluminum Box with Foam\n- Origin: Weifang\nThe angle of radiation of CO2 laser is very small and its energy density is high. Output power density will reach several kilowatts per square cm. CO2 laser surgical system outputs infrared rays which wavelength is 10600nm. Its penetrability is comparative large. Because it can incise focus tissue after focusing, CO2 laser surgical system is also considered as laser scalpel. If beam of laser is enlarged, it is good for the heating-up physical therapy of the deepest tissue.\n-- Features of fractional CO2 laser\n1. Germany imported scan head, make a more accurate therapy\n2. Newest eguide light arm, whose appearance is more delicated\n3. 8.4 inch true color touch screen, humanized design, easy to operate, 3 modes for your option\nwith scanning head, used for skin resurfacing, scars removal, acne removal and stretch marks removal etc.\nwith cutting head, used for Nevus etc.\nwtih 3 private heads, used for vaginal tighten, vaginal pink.\n4. Free LOGO on screen or machine\n-- Paremeter of fractional CO2 laser\n|pipe type||USA Coherent laser RF pipe|\n|LCD screen||8.0 inch LCD real color touch screen|\n|light conducting system||7 jointed arms to conduct light|\n|scan pattern size||0.1*2.6mm-20*20mm|\n|scan mode||continuous super pulse fractional|\n|cutting mode||ultra Pulse, single pulse, fractional pulse|\n|dot quantity||2500 dots at most|\n|pulse energy||1mj to 100mj is optional for each dot|\n|cooling system||TEC semiconductor+air+water cooling system|\n|laser apparatus||sealed off laser device stimulated by direct current|\n|spot size||mini 0.2mm at the focus|\n|aimming beam||635nm infrared ray|\n|power supply||220V 50HZ, 110V 60HZ|\n-- Function of Q swithched ND:YAG laser\n- Skin Resurfacing (Superficial Peeling), Large hair pores, rough skin, tender and whitening skin.\n- Scar Removal: Acne scars, burnt scars and surgery scars, etc\n- Eliminate fine wrinkles, birthmark,tighten skin and increase skin elasticity.\n- Dermatological Surgery (including Striae Gravidarum)\n- For Vaginal tightening.\n--Why choose MLKJ\nWeifang Mingliang company is manufacturer of beauty equipment for 10 years, we promise you best quality machine, professional technical support and prompt after-sale service.\nWe have CE, ISO13485, SFDA, TUV, SGS certifications.\n--Our excellent service is as listed below\n1. Before order\nwe will confirm your favourite COLOR, applicable VOLTAGE, LOGO.\n2. Before delivery\nwe will take photoes and film videos to show you the machine works well. When you say ok, we send machine out.\n3. During transnational transport\nwe cooperate with reliable air shipping forwarder, arrange all shipping issues for you, make sure your machine reach to you safely.\n4. After you receive machine\nwe will send to notice of handle installation and treatment parameter setting for reference.\nwe guarantee 2 years warranty for whole machine, such as pump, screen, power etc.\n--Beauty machines we produce\n808nm diode laser (use gold tin sintering laser bar, TEC condenser, Italy imported lamp)\nCO2 laser (40W RF, imported scanning head)\nHIFU (5 treatment heads,used for face and body)\n980 diode laser (specialized vascular removal)\nElight/IPL (7 filters, 15*50mm big spot size)\nNd yag laser (imported laser bar, 5 treatment heads)\n650nm diode laser (weight loss slimming)\nCavitation+Vacuum+RF (Tripolar RF, Monopolar RF, Bipolar RF)\nSHR (super hair removal)\nMultifunction equipment: IPL+SHR, 808+Nd yag laser, Elight+Cavitaion+Vacuum+RF, Elight+Nd yag laser...\nFor more details of the CO2 fractional beauty laser machine, contact Vicky freely please.","domain":"optical_engineering"}
{"url":"http://www.chem.uci.edu/research/facilities/laser-spectroscopy","date":"2013-05-23T21:39:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703830643/warc/CC-MAIN-20130516113030-00071-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8642408847808838,"token_count":238,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__22069702","lang":"en","text":"Laser Spectroscopy Facility\n307 & 314 Rowland Hall\nFax: 949 824-3168\nFacility hours: M-F, 9-5\nBy appointment only.\nDirector:Wytze van der Veer, Ph.D.\n323 Rowland Hall\nBecause laser and optical techniques have become a common tool in a wide variety of disciplines of chemical research, the Department of Chemistry created a laser spectroscopy facility in 1993. A departmental spectroscopist was hired to manage equipment, provide know-how of optical techniques and assist in the interpretation of spectroscopic data.\nThe facility now incorporates a wide variety of nanosecond laser systems (Nd:Yag, Excimer, dye, OPO), a number of CW systems (Ar-ion, Nd:Yag, single mode ring dye) and a Pico Second system consisting of Nd:Yag laser and two OPO's. Also other related instruments such as a photo-spectrometer, a fluorescence spectrometer, a FTIR are placed within the facility as well as photo detectors and instruments for the characterization of laser beams.","domain":"optical_engineering"}
{"url":"http://outdoorilluminating.com/residential/led.html","date":"2022-09-27T10:33:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335004.95/warc/CC-MAIN-20220927100008-20220927130008-00257.warc.gz","language_score":0.9236937165260315,"token_count":263,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__146748303","lang":"en","text":"Contact us today!\nFlexible, Durable, Efficient.\nLEDs, or Light Emitting Diodes, represent one of the most significant advances in lighting technology since the Edison bulb. Initially deployed as a longer-lasting and more energy-efficient alternative to incandescent bulbs, LED technology is evolving to enable lighting designers to offer more flexibility in lighting effects, from color temperature variations to beam spread options and more. (For more information on LED technology, see \"The Anatomy of an LED\").\nWith new technology, though, early adopters often experience unanticipated challenges as the technology is refined, and LED is no exception. The outdoor environment can be harsh and unpredictable, leading to premature component failure on certain fixtures. We have found, among the countless manufacturers competing to break through in this new market, that some are clearly better than others.Having specified LED lighting technology in hundreds of applications, we have gained immeasurable experience in identifying the highest quality products, and installing and maintaining the systems. With this experience, our senior design team can help you decide whether LED is right for your application and direct you toward the latest – and best – options.","domain":"optical_engineering"}
{"url":"https://jobs.ucf.edu/en-us/job/497427/","date":"2019-09-18T03:42:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573176.51/warc/CC-MAIN-20190918024332-20190918050332-00386.warc.gz","language_score":0.9333884716033936,"token_count":718,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__161031585","lang":"en","text":"The University of Central Florida (UCF) invites applications and nominations for the position of dean of the College of Optics and Photonics. The College of Optics and Photonics, which houses CREOL (Center for Research and Education in Optics and Lasers), is one of the world’s foremost institutions for research and education in optics and photonics.\nLocated in Orlando, UCF is one of the nation's most dynamic metropolitan research universities. We are seeking a visionary leader for the college. The dean of the college is responsible for working with the faculty to foster excellence in research and education while continuing to reinforce the role of the college within the university and industry. As the academic and administrative leader of the college, the dean's responsibilities will include, but are not limited to: fiscal management, strategic planning, and academic programs.\nThe next dean of the College of Optics and Photonics shall possess:\n• a strong commitment to advance research, teaching, and learning;\n• an ability and willingness to advocate for student success and faculty excellence;\n• evidence of advancing diversity and inclusivity;\n• the ability to inspire the college's faculty, students and staff, university community, industry partners, donors and alumni to dedicate their time and talent in pursuit of a shared vision for the college;\n• a strong understanding of current trends and research directions in optics and photonics essential for promoting and accelerating research and discovery in the college;\n• a working knowledge of the industry, its main challenges and strategic directions for the future.\nThis position reports to the provost and vice president for Academic Affairs.\nThe College of Optics and Photonics offers M.S. and Ph.D. degrees in Optics and Photonics and a B.S. degree in Photonic Science and Engineering. The faculty engage in a broad spectrum of research covering all areas of optics and photonics, ranging from fundamental physics to device and systems research.\nThe college has 35 core faculty members and over 20 faculty members with joint appointments, about 50 research scientists and postdoctoral scholars, over 140 graduate students, and 150 undergraduate students. The college is home to the Center for Research and Education in Optics and Lasers (CREOL), the Florida Photonics Center of Excellence (FPCE), the Townes Laser Institute (TLI), the Townes Institute for Science and Technology Experimentation Facility (TISTEF), and the Institute for the Frontier of Attosecond Science and Technology (iFAST). Additional information is available at https://www.creol.ucf.edu.\nUCF and its 13 colleges provide opportunities to more than 68,000 students, offering 189 bachelor's and master's degrees, and 32 doctoral programs. Students come from all 50 states and over 147 countries. A priority on diversity and inclusiveness led UCF to co-found the University Innovation Alliance, a consortium of large public research universities committed to better serving first-generation, low-income students. U.S. News & World Report ranked UCF the 10th \"Most Innovative School\" in its Best Colleges 2019 report. Additionally, UCF is one of 56 public universities with the Carnegie Foundation's highest designation in two categories: community engagement and very high research activity. As one of the largest universities in the country, UCF is committed to innovative community partnerships, world-class research with local and global impact, and the integration of technology and learning. For additional information about the University of Central Florida, please visit www.ucf.edu.","domain":"optical_engineering"}
{"url":"https://www.china-warningtriangle.com/news-show-275795.html","date":"2022-06-30T03:39:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103661137.41/warc/CC-MAIN-20220630031950-20220630061950-00715.warc.gz","language_score":0.9300981163978577,"token_count":171,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__68642387","lang":"en","text":"Principle of Tripod Warning Sign\nThe reflective part in the warning sign is made by using the retro-reflective principle of high-refractive-index glass beads and the micro-diamond-shaped reflective principle of the reflective crystal lattice, and is made by advanced processing after focusing. It can reflect the distant direct light back to the light-emitting place, and has good retroreflective optical performance no matter in day or night. Especially at night, it can display the same high visibility as during the day. Warning signs made of this high-visibility reflective material can be easily spotted by night drivers no matter if the user is in a remote place or under the interference of light or scattered light. The emergence of reflective materials successfully solved the night driving problem of \"seeing\" and \"being seen\".","domain":"optical_engineering"}
{"url":"https://www.daynasmarket.com/index.php/2023/03/22/molecular-lights-illuminating-the-beauty-of-science/","date":"2024-02-29T11:10:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474808.39/warc/CC-MAIN-20240229103115-20240229133115-00068.warc.gz","language_score":0.9292235970497131,"token_count":686,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__6820873","lang":"en","text":"The study of molecular lights, also known as luminescence, is a fascinating area of science that involves the study of light emission from molecules. This phenomenon is employed in a wide range of applications, from the production of OLED displays to the development of new sensors and optical probes. In this article, we will explore the science behind molecular lights, the applications of this technology, and some of the fascinating research taking place in this field.\nThe Science of Molecular Lights\nAt its simplest, luminescence is the emission of light by a molecule. This process occurs when energy is absorbed by the molecule, causing it to become excited. As the molecule returns to its ground state, it may release the excess energy as light. The energy of the light emitted depends on the specific electronic transitions that take place within the molecule during the luminescence process.\nThere are a number of different types of luminescence, including fluorescence, phosphorescence, and chemiluminescence. In fluorescence, the excited state is relatively short-lived, meaning that light emission occurs quickly after excitation. In phosphorescence, the excited state is longer-lived, meaning that light emission occurs over a longer period of time. Chemiluminescence, on the other hand, is the result of a chemical reaction, and often results in the emission of light without any external energy source.\nOne of the key factors that determines the efficiency of luminescence is the ability of the molecule to efficiently convert the absorbed energy into light emission. In particular, the efficiency of the process depends on the quantum yield, which is the ratio of photons emitted to photons absorbed. Understanding and controlling this process is essential for developing new applications of luminescence, such as in organic light-emitting diodes (OLEDs).\nApplications of Molecular Lights\nMolecular lights have a wide range of applications, encompassing everything from lighting and displays to biomedical imaging and sensing. One of the most well-known applications of luminescence is in OLED displays, where organic molecules are used to emit light. These displays are increasingly used in TV screens, smartphones, and other electronic devices.\nAnother area where molecular lights are important is in biomedical research. Luminescence can be used to image living cells and tissues, providing insights into cellular processes and disease mechanisms. For example, researchers have developed luminescent nanoparticles that can be used as imaging probes to highlight cancer cells or detect bacterial infections.\nMolecular lights are also important in sensing and detection. For example, chemiluminescence is used in forensic analysis, where it can help to identify traces of blood or other substances. Luminescent materials can also be used for gas sensing or as optical probes to detect changes in pH or ionic strength.\nResearch in Molecular Lights\nThere is ongoing research into new materials for molecular lights, as well as into the development of new applications for these materials. For example, researchers are exploring the use of quantum dots, which are nano-sized particles that exhibit luminescence. These materials have potential applications in everything from displays to solar cells.\nThere is also research taking place into the use of molecular lights for sensing applications. For example, researchers are developing new luminescent probes that can detect changes in temperature or pressure, as well as new materials that can selectively bind to particular molecules, such as DNA or proteins.","domain":"optical_engineering"}
{"url":"https://www.naverlabs.com/en/storyDetail/145","date":"2020-01-26T08:36:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251687958.71/warc/CC-MAIN-20200126074227-20200126104227-00352.warc.gz","language_score":0.9493045806884766,"token_count":330,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__30393111","lang":"en","text":"AHEAD is a 3D AR HUD (head-up display) developed by NAVER LABS. It is an HUD unlike any other, displaying information such as automotive navigation, forward collision warning (FCW) and lane departure warning (LDW) on the windshield optically and seamlessly.\nExisting HUDs can disrupt drivers’ concentration as the principal focus of what is displayed and what actually appears on the road differ. When focusing on the HUD information image, the road appears blurry, and vice versa. To tackle this problem, AHEAD applied 3D optical technology to provide information in convergence with the road for all ranges of drivers’ field of view, both near and far.\nEarly this year, AHEAD drew much attention by being awarded at the CES 2019 Innovation Awards. As announced at the time, AHEAD has been promoting a development project to link localization technology of NAVER LABS with advanced driver-assistance systems (ADAS) using data from HD maps. The result of this project was verified through an actual test drive demonstration.\nAHEAD, self-developed by the NAVER LABS Autonomous Driving Team, provides driver-assistance information, such as lane-level navigation, guidance and warning, and functions for safe driving, such as FCW and LDW, based on localization results using HD maps of roads.\nRoads are very special, and at the same time, ordinary. In order to parse the nuances of such discrepancy and gain a better understanding of roads for the future of road spaces, NAVER LABS is continuing and furthering its research on a wide range of technologies.","domain":"optical_engineering"}
{"url":"https://hummingbirdeffectstore.com/products/superior-vision-sunglasses","date":"2020-07-15T05:00:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657155816.86/warc/CC-MAIN-20200715035109-20200715065109-00520.warc.gz","language_score":0.9323541522026062,"token_count":146,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__120200810","lang":"en","text":"These glasses apart for their lovely design offer photochromic lenses that are light-adaptive depending on the outdoor light, basically darkening automatically when exposed to sunlight.\nTheir polarized lenses offer great advantages when it comes to decreasing eye strain and discomfort in bright sunlight.\nThey also reduce reflections from water for example, significantly improving your ability to see objects below the surface of a lake, stream or the ocean (a great benefit for both fishing and boating).\nEven when the lens color lightens our sunglasses still filter out 100% of all UV and 99% of reflected glare.\nThese polarized sunglasses with photochromic lenses are a great choice for anyone who is frequently in and out of the sun on any given day.","domain":"optical_engineering"}
{"url":"http://www.enlightenmanchester.co.uk/lumenpulse/","date":"2024-04-20T16:17:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00280.warc.gz","language_score":0.929205596446991,"token_count":177,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__113264","lang":"en","text":"Lumenpulse AlphaLED is a leading specification-grade LED lighting solutions manufacturer. Established via Lumenpulse’s acquisition of AlphaLED in 2014, Lumenpulse AlphaLED offers a range of sustainable, high-performance LED luminaires for retail, commercial and architectural applications.\nAlphaLED was the first LED manufacturer in the UK to offer a 5-year warranty, guaranteeing the quantity and quality of light. The company quickly earned a reputation for durable, high-performance products with prestigious projects around the world.\nFounded in 2006, Lumenpulse has since established itself as an LED leader, with innovative technology and strong industrial design. The company has 437 employees, with offices in Montreal, Québec City, Boston, Paris, London and Manchester.\nImage: Lumenpulse AlphaLED – Night of Heritage Light at Liverpool Docks","domain":"optical_engineering"}
{"url":"http://www.questionswithanswer.com/how/How-did-spectacles-originate.html","date":"2016-08-28T14:02:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-36/segments/1471982939917.96/warc/CC-MAIN-20160823200859-00288-ip-10-153-172-175.ec2.internal.warc.gz","language_score":0.9820305705070496,"token_count":346,"dump":"CC-MAIN-2016-36","global_id":"webtext-fineweb__CC-MAIN-2016-36__0__18340851","lang":"en","text":"Around 1000AD, the first vision aid was invented, called a reading stone, which was a glass sphere that was laid on top of the material to be read that magnified the letters.\nAround 1284 in Italy, Salvino D’Armate is credited with inventing the first wearable eye glasses. The ingenious American inventor Benjamin Franklin invented bifocal spectacles in 1784. he was getting old, and was having trouble seeing objects both close up and at a distance. He grew so tired of switching two different pairs of spectacles, so he devised a way to have both type of lenses fit into a single frame. The distance lens was placed at the top, and the up-close lens was placed at the bottom. Bifocal spectacles are made this way even today.\nThe oldest known lens was found in the ruins of ancient Nineveh, and was made of polished rock crystal, 4 cm in diameter.\nAround the year 1752, eyeglass designer James Ayscough introduced his spectacles with double-hinged side pieces. The lenses were made of tinted glass as well as clear. Ayscough felt that white glass created an offensive glaring light that was bad to the eyes. He advised the use of green and blue glasses. Ayscough glasses were the first sunglass like eye-glasses, but they were not made to shield the eyes from the sun, they corrected for vision problems.\nEdwin H. Land invented a cellophane-like polarizing filter (patented in 1929), the first modern filters to polarize light. Polarizing celluloid became the critical element in polarizing sunglass lenses; it is a process that reduces light.","domain":"optical_engineering"}
{"url":"https://www.grdproductsco.com/products/inflect-lighting-31-5-led-light-bar-ilcbo3-180","date":"2020-07-12T05:12:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657131734.89/warc/CC-MAIN-20200712051058-20200712081058-00414.warc.gz","language_score":0.750863254070282,"token_count":179,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__246816352","lang":"en","text":"Inflect Lighting 31.5\" Curved Optic Lenses LED Light Bar 18000 Lumens\nThe Inflect 31.5\" light bar is a great option for a bright alternative to your stock headlight. Made with Osram 3W chips you can count on a high quality, bright, long lasting light. The optic lens provides a clean, crisp light source that will light the pavement for safe driving.\n- Size: 31.5\"\n- Lumens: 18000\n- Operating Voltage: DC10~30V\n- Waterproof: IP67\n- Osram 3W Chips\n- Color Temperature: 6000K\n- Lifespan: Above 50000 hours\n- Material: Diecast aluminum housing\n- Mounting Bracket: Stainless Steel bracket\n- Lens material: PC\n- Inflect Lighting Optic Lenses\n*Wiring harness included","domain":"optical_engineering"}
{"url":"http://www.blackjacklighting.com/?portfolio=grid-led-series","date":"2018-01-18T03:42:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887065.16/warc/CC-MAIN-20180118032119-20180118052119-00454.warc.gz","language_score":0.7742024064064026,"token_count":117,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__127253998","lang":"en","text":"Available in two color temperatures (2700K and 4000K), 0.33W LED light sources form a pleasing grid pattern while providing bright, even illumination.\n• Brushed Aluminium Anodized finish\n• A specially designed prismatic acrylic diffuser prevents glare\n• Multiple rows of LED light sources form a pleasing decorative pattern while providing bright, even illumination\n• High-efficient light source – LED efficacy of 126 lumens per watt (4000K)\n• Instant on/off; dimmable with TRIAC dimmer (120V-50/60Hz AC)","domain":"optical_engineering"}
{"url":"https://www.uavbits.net/products/lens-filter-wrench","date":"2017-07-24T12:27:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549424876.76/warc/CC-MAIN-20170724122255-20170724142255-00691.warc.gz","language_score":0.9444413185119629,"token_count":211,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__187518165","lang":"en","text":"Lens Filter Wrench\nMakes removal of the stock DJI Lens easy\nWill not damage the lens\nWill not harm the aluminum housing\nI tried to muscle the lens off my Phantom 3, with absolutely no luck. And I have strong hands. I knew there had to be a better way, so I designed a wrench that would fit the DJI lens and get a good grip on it without harming it and provide the leverage needed to loosen the lens.\nAfter removing the lens and seeing how thin the aluminum is around the lens, I believe that trying to remove the lens with your fingers puts stress on the aluminum and causes it to distort and put the threads in a mind. So no matter how hard you twist, it only binds the lens onto the Phantom that much more. The Lens Filter Wrench is designed to put the force onto the edge of the DJI lens, where it is strongest and least likely to warp. With the force applied only to the edge, the lens loosens easily and unscrewing it becomes a snap.","domain":"optical_engineering"}
{"url":"http://www.biomedical-instruments-trading.com/products/video-devices/569-pco-pco-edge-4-2","date":"2023-09-22T18:50:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506421.14/warc/CC-MAIN-20230922170343-20230922200343-00135.warc.gz","language_score":0.7348713874816895,"token_count":228,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__3793271","lang":"en","text":"Groundbreaking sCMOS technology in a compact design\nThe pco.edge 4.2 is is equipped with an innovative scientific CMOS sensor providing crisp images and precise measurements.\nThe pco.edge series can be optionally upgraded with a water cooling system.\nPCO’s edge 4.2 camera system is designed for users who require highest quantum efficiency, best 16 bit dynamic range, high frame rates, long exposure times and extremely low readout noise.\n- thermal stabilization at 0°C / +5 °C\n- extreme low readout noise of 0.8 e- med\n- high resolution of 2048 x 2048 pixel\n- dynamic range of 37 500 : 1 (USB) / 33 000: 1 (CL)\n- quantum efficiency up to 70%\n- exposure times from 100 µs to 20 s\n- maximum frame rate 100 fps\n- rolling shutter or global reset mode\n- lightsheet mode\n- camera link full or USB 3.0 interface\n- small form factor: 102 x 79 x 70 mm\n- optional: water cooling system","domain":"optical_engineering"}
{"url":"https://anablandiana.eu/en/questions/what-is-the-difference-between-a-uv-lamp-and-a-led-lamp/","date":"2023-03-30T14:11:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949331.26/warc/CC-MAIN-20230330132508-20230330162508-00130.warc.gz","language_score":0.9344392418861389,"token_count":1267,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__97083103","lang":"en","text":"Both LED and UV nail lamps emit UV wavelengths and work in the same way. However, UV lamps emit a broader spectrum of wavelengths, while LED lamps produce a narrower, more targeted number of wavelengths.\nHow can you tell the difference between UV and LED nail lamps?\nWhat is the Difference Between an LED and UV Nail Lamp? Both LED and UV nail curing lamps produce light which cures gel polish. The main difference between the two lamps is the technology within them, the type of bulbs they contain, and the type of light they produce. UV lamps can take longer to cure your gel polish.\nIs LED or UV nail lamp safer?\nLED lamps have much shorter curing times, but that’s because the UVA rays they emit are much more intense than regular UV lamps or even the sun, Adigun said. They’re so powerful that she didn’t know how they would compare to the UV exposure people get by being outdoors.\nCan you dry regular nail polish with a LED light?\nUV or LED lamps can’t be used with regular nail polish, and the polish won’t dry any faster if it’s placed under the lamp. When a UV or LED lamp emits UV light, a chemical reaction occurs that causes the polish to dry or cure. UV light causes a polymerization reaction, which hardens and cures the gel polish.\nCan I use any LED light for gel nails?\nToday, most gel polish brands will cure in LED or UV lamps, but not all of them do. CND Shellac is supposed to only cure in a UV lamp, but some people can get it to cure in an LED lamp. … As long as the gel polish cures in the lamp you have, you should be able to use it.\nWhy do gel nails hurt under UV light?\nThe pain or burning that you feel when you place your hand in the uv light, is called “heat transfer“. This is the gel curing which is basically shrinking while it hardens on the natural nail. The UVA light is attracted to the polymers in the gel which harden as the light penetrates them (i.e., curing).\nIs a blacklight the same as a UV light?\nA blacklight, also referred to as a UV-A light, Wood’s lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light.\nIs UV LED lamp harmful?\nExposure to UV radiation can cause damage to your skin, especially if you’re exposed over time. For example, it can lead to premature wrinkles, age spots, and even skin cancer. But the FDA views nail curing lamps as low risk when used as directed by the label.\nAre LED lamps better than UV?\nThe main selling point of an LED lamp is the time that can be saved when using it compared to curing by UV lamp. Typically an LED lamp will cure a layer of gel polish in 30 seconds, which is a lot quicker than the 2 mins that it takes a 36w UV lamp to do the same job.\nHow often can you use UV light for nails?\nMost gel devotees could easily reach those 12 visits in just six months. This estimate also relies on meticulous use of the lamps—never exceeding eight minutes total for one full manicure application.\nHow can I cure my nails without UV light?\nThankfully, there are alternative ways to cure gel polish with less UV exposure. While only an LED lamp can cure your polish as quickly and effectively as a UV light, using a non-UV gel polish, applying a drying agent, or soaking your nails in ice water could work as well.\nWhat happens if you over cured gel nails?\nOver-curing a gel is possible. Some gels will discolor when over-cured and some will lose the gloss, while others will do both or neither. So much of this depends on the gel and the curing light. Each manufacturer should be able to assist the nail technician in what issues they may see with over-curing the product.\nDo Polygel nails need UV light?\nPolygel nails need to be cured, and this can be done using an LED light or a UV lamp. Depending on the brand of Polygel you use, the time it takes to cure will differ slightly, but it should be around 30 seconds under an LED and 2 minutes using a UV lamp. Polygel will not harden unless it is cured.\nCan I use my phone flashlight to cure gel nails?\nSo always opt for a good LED lamp to cure the nails and don’t settle for flashlights. You cannot cure gel nails using a flashlight. Using the appropriate tools for curing the nails ensure that your manicure lasts long and looks great.\nDoes ice water cure gel nail polish?\nQuote from the video:\nAnd then put them right into the ice water it should dry them in three minutes you have to keep them submerged for all three minutes and after that they should be dry. And good to go.\nCan you use a hair dryer to dry gel nail polish?\nPut the hairdryer down. Heat actually prevents your nail polish from drying, so a quick blast can do more harm than good. Let your nails dry naturally instead.\nCan I use a blacklight to cure gel nails?\nThough great in many ways, the bad news is LED lamps cannot cure all gel brands, but UV lamps can cure all LED polishes. If you decide to use a UV dryer to cure LED polishes, It may be necessary to decrease the amount of time you cure.\nWhat is Polygel kit?\nQuote from the video:\nThis file is double sided with a 240 grit for natural nails. And a 120 for using on the hardened poly gel.\nHow do you do Polygel nails without UV light?\nQuote from the video:\nAnd then use your color of choice I'm using the shade Dolce Vita and you apply it to the entire nail. And then dip it in the little powder. And then just like tap and shake it off.","domain":"optical_engineering"}
{"url":"https://www.protiq.com/en/glossar/3d-scanner/","date":"2020-05-26T22:38:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347391923.3/warc/CC-MAIN-20200526222359-20200527012359-00049.warc.gz","language_score":0.9314501881599426,"token_count":113,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__205316940","lang":"en","text":"Device for measuring three-dimensional objects, in order to create data for digital 3D models, for example for additive manufacturing. Various optical systems are used in the process. One example is laser scanners, in which a laser beam scans the surface of the objects, measures distances, and determines spatial coordinates. This results in a point cloud consisting of numerous individual measurements. A CAD program then models the resulting data into a three-dimensional object. In this way, immovable objects such as buildings or sculptures can also be mapped in 3D printing and can then be printed.","domain":"optical_engineering"}
{"url":"https://telecomtimes.com.au/files/2018/08/10/coriants-cloudwave-optics-supports-fiber-optic-backbone-network-in-brazils-state/","date":"2021-06-24T15:24:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488556133.92/warc/CC-MAIN-20210624141035-20210624171035-00367.warc.gz","language_score":0.9135627150535583,"token_count":315,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__59544362","lang":"en","text":"Munich-based Coriant has announced that Brazil-based regional telco services provider Copel Telecom has deployed 200G optical transmission technology from Coriant to scale its own fiber optic backbone network in the State of Paraná.\nPowered by Coriant CloudWave Optics, the ultra-high speed service enables Copel Telecom to cost-efficiently meet the growing bandwidth demands of its end-user customers while also improving the low latency performance of end-to-end service connectivity.\nThe Copel Telecom fiber optic network provides the resilient foundation for an expanding subscriber base of residential high-speed internet services covering more than 81 cities as well as carrier-class corporate services offered in all 399 municipalities in Paraná.\nBuilt upon the Coriant hiT 7300 Multi-Haul Transport Platform, the DWDM infrastructure supports 100G performance even in the most challenging fiber conditions, Coriant said.\nFollowing the recent introduction of its CloudWave Optics capability, Copel Telecom has increased line-side transmission speeds on its hiT 7300-based long haul backbone network to 200G per wavelength, added Coriant. “In addition to increasing reach and spectral efficiency, the programmable interface solution enables Copel Telecom to reduce power, footprint, and cost as the network scales,” it said.\nThe Coriant service for Copel Telecom includes improvements to the Coriant Transcend Chorus transport network management system, which supports simplified end-to-end service provisioning and advanced network control through software-defined programmability and automation.","domain":"optical_engineering"}
{"url":"http://aifat.com/triolight/","date":"2018-02-21T09:08:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813602.12/warc/CC-MAIN-20180221083833-20180221103833-00793.warc.gz","language_score":0.8592904210090637,"token_count":197,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__51611899","lang":"en","text":"Triolight is known worldwide as a manufacturer of innovative LED lighting.\nliniLED® is a high-quality flexible LED light strip that allows for an endless range of applications. liniLED® can be applied both indoors and outdoors, as functional or decorative lighting. Our co-extrusion technology with built-in reflection, guarantees an optimal light output. liniLED® is also available in a side-emitting version.\nThe liniLED® range is complemented with many accessories, such as: mounting profiles, aluminum profiles for diffused light, stair profiles, connection materials, dimmer switches, (RGB) controllers, power supplies, power boxes and casted LED Light lines in stainless steel profiles, etc.\n- liniLED® LED Strips\n- liniLED® Lines\n- liniLED® Spots\n- liniLED® Accessories\n- liniLED® Custom/OEM\n- liniLED® Demo","domain":"optical_engineering"}
{"url":"https://www.dissectiongroup.co.uk/page42.html","date":"2021-09-27T04:16:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780058263.20/warc/CC-MAIN-20210927030035-20210927060035-00344.warc.gz","language_score":0.9078471064567566,"token_count":347,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__175321063","lang":"en","text":"Lighting. SDMs are usually fitted with lamp situated below a ground glass or opaque plastic stage. The transparency of this stage affects the visibility of fine detail. Heavily opaque stages will scatter light and mask fine detail. Viewing fine detail may seem like a good thing, but not always: If you are trying to clearly see the shape of the valves only, the appearance of unnecessary detail can be distracting (see examples). In addition to the lamp CMs usually have sub-stage condensers with iris diaphragms, which allows greater control over lighting.\nColour balance. The lighting systems on budget microscopes may give a strong orange hue to the final picture. To combat this, use a blue filter between the lamp and stage. Digital users can additionally set the camera’s white balance setting to tungsten, and make final adjustments in programs such as Adobe Photoshop (see examples).\nVingetting (darkening of the edges). This can be caused by microscope’s eye piece or sub-stage lighting. To combat the former, zoom in the camera lens - the effective magnification will increase and image quality may suffer. Sub-stage lighting problems can be reduced by opening the iris diaphragm (if fitted), though this may reduce contrast and render fine detail invisible; and by ensuring that the bulb is fitted centrally and not shifted to one side of its chamber.\nFocusing. For digital users, the camera linked to a TV rather than relying on the camera’s monitor will prove very useful. It is usually best to set the camera’s to infinity and set the focus via the microscope’s controls.\nImage enhancement (see examples)","domain":"optical_engineering"}
{"url":"http://blog.lacarguy.com/2012/07/09/let-there-be-light/","date":"2013-05-22T15:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368701910820/warc/CC-MAIN-20130516105830-00027-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9266986846923828,"token_count":700,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__127412736","lang":"en","text":"Let there be LIGHT!\nThere is much discussion these days around lighting, from Compact Flourescents (CFLs) to Light-emitting Diodes (LEDs) to whatever is on the horizon.\nBut, of course the most current discussions surround LEDs, which is mostly what we’ll use for both exterior and interior lighting at the new Pacific Audi dealership.\nBelieve it or not, LEDs were introduced in 1962. Early LEDs emitted low-intensity red light—often used in digital readouts and to illuminate alarm clocks, coffee makers, traffic lights, billboards and more. But modern versions are available across multiple wavelengths, with very high brightness. More info HERE; you may be surprised at the scope of LEDs present in your day to day life!\n- LEDs present many advantages over incandescent light sources including:\n- Lower energy consumption / Higher efficiency – LEDs emit more light per watt than incandescent light bulbs, and their efficiency is not affected by shape or size.\n- Longer lifetime – LEDs can have a relatively long useful life. One report estimates 35,000 to 50,000 hours of useful life; more HERE. Fluorescent tubes typically rate at about 10,000 to 15,000 hours, depending partly on the conditions of use, and incandescent light bulbs at 1,000–2,000 hours. (More general Dept. of Energy info HERE.)\n- On/Off time: LEDs light up very quickly.\n- Cycling: LEDs are ideal for frequent on-off cycling, unlike fluorescent lamps that fail faster when cycled often.\n- Dimming: LEDs can very easily be dimmed.\n- Cool light: In contrast to most light sources, LEDs radiate very little heat in the form of infrared that can cause damage to sensitive objects or fabrics.\n- Shock resistance: LEDs are difficult to damage with external shock, unlike fluorescent and incandescent bulbs, which are fragile.\nThe showroom, which will have all LED fixtures, includes a light sensor mounted in the South end that will reduce the lighting by 50% when enough natural daylight is present! Wouldn’t that be nice at home? Likewise, in the service area, a light sensor will work in tandem with skylights (natural daylight!) to reduce lighting by 50%. In the showroom and service areas, light sensors will be pre-set to cut lighting by 50% when daylight illuminance levels reach a minimum of 25 footcandles (click on link for fun explanation), as determined by a field measure with a handheld light sensor. People in “individual” workspaces—including task lighting like desk lamp LED fixtures or cabinet mounted LEDs —will access their lighting controls through occupancy sensors.\nOn the inside of the overall building, lighting will be a mix of LED or flourescent, except spotlighting using metal halide fixtures. All lighting circuits and zones are scheduled, with occupancy sensors and time clock control from a master lighting control panel. This is a smart LEED⎝-credit requirement that highlights individual controllability and limits light pollution.\nFinally on the outside, all pole-mounted heads are 180w LED and building-mounted are 68w LED. And all are controlled with photo cell sensors telling them to go “on”, followed by a time clock “off” from a master lighting control panel.\nSEE you there!","domain":"optical_engineering"}
{"url":"https://www.cyclecentreuk.co.uk/m2b0s52p16673/CATEYE-KINETIC-X2-REAR","date":"2020-08-04T03:15:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735851.15/warc/CC-MAIN-20200804014340-20200804044340-00307.warc.gz","language_score":0.7736237645149231,"token_count":192,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__47625757","lang":"en","text":"|Description||KINETIC X2 REAR\nA new revolution in lighting\nBringing together the brightness and 180 degree visibility of the Rapid range, the new Kinetic light adds an additional dimension. With a built in sensor which detects the movement of the rider, the beam will automatically change from flash to constant when stopping.\n• 3 modes: Constant / Flashing / Rapid\n• Up to 50 lumen output\n• Fixed beam from pulse when stopping\n• COB LED technology\n• Li-Polymer battery\n• 180 degree visibility\n• Complex circuitry allows safe charge and discharge\n• USB recharge (2 hrs)\n• O-Ring attachment\n• Battery auto save\n• Low battery indicator\nAs with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.","domain":"optical_engineering"}
{"url":"https://longsea.cc/products/anti-glare-motorcycle-glasses-less-than-25-is-not-shipped-please-place-an-order-with-other-products","date":"2019-12-10T10:25:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540527205.81/warc/CC-MAIN-20191210095118-20191210123118-00128.warc.gz","language_score":0.8976105451583862,"token_count":130,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__30087596","lang":"en","text":"Welfare ！！！Less than $25 is not shipped Please place an order with other products\nMore than 60 percent of Motorcycle accidents happen at night (DOT). These Anti-Glare Driving Glasses reduce night riding glare and eye strain. Protect yourself with a pair of these glasses!\nGreat for motorcycles, outdoor activity, etc. Light weight and easy to carry. Protects your eyes from harm. The glasses have rubber padding around the lenses to give you excellent comfort, with vents to prevent fogging. Polycarbonate UV400 lenses which provide the ultimate in protection against the sun's harmful rays.","domain":"optical_engineering"}
{"url":"https://blog.seon.com/2013/02/08/3-ideal-scenarios-for-high-definition-bus-cameras/","date":"2017-12-15T00:34:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948551501.53/warc/CC-MAIN-20171215001700-20171215021700-00471.warc.gz","language_score":0.9315925240516663,"token_count":593,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__59048770","lang":"en","text":"High-definition (HD) cameras have been used for many years in the fixed surveillance world to help deliver sharper, clearer images, and are particularly useful in identifying fine details. Recently, HD cameras have made in-roads in mobile surveillance applications, and have a number of features that can benefit a school or transit fleet.\nWith 1280 x720 resolution (three times the resolution of a typical analog camera), HD cameras can deliver a sharper and cleaner picture and allow you to digitally zoom to get a better look at the scene. These HD cameras, specifically designed for mobile environments, use progressive scanning to produce smoother images, reducing motion blur artifacts from moving vehicles. HD cameras have a complete digital signal flow from camera to recorder, reducing the signal noise and improving overall image quality. With these technical benefits, here are 3 specific scenarios where HD bus cameras can be most useful:\n1. License plate capture\nHD cameras using a telephoto lens can capture the license plates of vehicles illegally passing a stopped school bus. Zeroing in on the license plate using the digital zoom feature produces a higher quality image due to the higher resolution of HD bus camera. The extra sharpness and clarity of the HD cameras make them the ideal solution for capturing license plates of cars illegally passing the bus, even at high speeds.\nVehicles driving in HOV or bus lanes are a problem for public transit buses. A forward-facing HD camera with a wide angle lens can capture the license plates of cars driving in the bus lane in front of the bus. This camera offers a 90 degree field of view, giving an exceptional, wide-angle overview of the scene ahead while capturing license plates of cars in front of the bus.\n2. Accident reconstruction\nWhen a bus is involved in a traffic accident, crash investigators often look to video footage to see what took place outside of the bus. Whether it is a minor traffic accident, ora more serious incident involving pedestrians, video footage captured by a forward-facing HD camera provides sharp evidence to reconstruct the accident. A wide-angle view of the scene coupled with vehicle telemetry data, such as braking and signals, can aid in identifying who was at fault. This can help school districts or transit agencies avoid hefty litigation costs or insurance bills.\n3. Identify faces more clearly\nThe higher resolution and cleaner images captured by HD cameras make identifying faces much easier. Obtain the visual evidence needed to determine who is at a bus stop and who boards the bus. Unfortunately, in today’s public transit and even school bus environment, crimes happen. High-quality images can help in the identification of the guilty parties and can be used as evidence for prosecution.\nSeon’s stop-arm/windshield HD bus camera has been specifically designed for mobile applications —ideal for these situations where image quality and clarity is vital.\nTo see the difference HD makes when compared to a typical analog camera, CLICK HERE.","domain":"optical_engineering"}
{"url":"http://www.agrospectrumindia.com/news/118/1994/nasa-trials-validates-use-of-quantum-dots-for-optimised-crop-growth-on-space-missions.html","date":"2021-04-18T04:52:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038468066.58/warc/CC-MAIN-20210418043500-20210418073500-00230.warc.gz","language_score":0.8729290962219238,"token_count":354,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__164287716","lang":"en","text":"NASA trials validates use of quantum dots for optimised crop growth on space missions\nThe collaborative research demonstrated a 13 per cent biomass improvement for red romaine lettuce using UbiQD's orange-emitting, luminescent greenhouse product UbiGro, and a 9% increase for a new red-emitting film.\nImage source: PR Newswire\nUbiQD, Inc., a New Mexico-based advanced materials company, announced that it has published the groundbreaking results of the first phase of its NASA-funded plant trials in the open-access Nature Research journal, \"Communications Biology.\" The study validates the use of quantum dots for optimised crop growth on space missions. The collaborative research and development project with the University of Arizona's Controlled Environment Agriculture Center (UA-CEAC) demonstrated a 13 per cent biomass improvement for red romaine lettuce using UbiQD's orange-emitting, luminescent greenhouse product UbiGro, and a 9 per cent increase for a new red-emitting film.\nThe plant trial was designed to maintain all growth parameters except spectrum and showed improved photosynthetic efficiency under the film treatments compared to the unmodified control case. These results demonstrate the importance of light color on plant growth, and how this technology can improve crop productivity, both on Earth and in Space.\n\"We are grateful for the opportunity to develop an understanding of quantum dot capabilities to improve crop production,\" said Gene Giacomelli, a professor of Biosystems Engineering at the University of Arizona, who leads the work at UA-CEAC. \"Ultimately, UbiQD's technology is about the betterment of crop production, and will lead to new strategies for optimizing production in greenhouses.\"","domain":"optical_engineering"}
{"url":"http://drvalenciawells.com/unique-and-quality-eyewear/","date":"2017-07-23T04:33:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549424247.30/warc/CC-MAIN-20170723042657-20170723062657-00280.warc.gz","language_score":0.8959043025970459,"token_count":406,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__185201888","lang":"en","text":"We carry a variety of eyewear for men, women, teens and children. They are available in a number of styles from fashion-forward designer frames to more traditional and retro designs. Today’s frames are made from materials that include strong and lightweight plastic such as TR-90 and metal alloys such as titanium. Our selection is unique and quality.\nOur office offers an array of eyeglass lenses to meet individual vision requirements. Some of the available lenses are:\n• High Index Lenses are thinner and lighter than ordinary lenses.\n• Multifocal Lenses correct for near and distance vision (bifocal) or near, middle/intermediate, and distance vision (trifocal).\n• Progressive Addition Lenses correct for near, middle/intermediate, and distance vision without the lines of bifocal or trifocal lenses.\n• Transitions® Lenses are clear indoors, but darken automatically when you go outdoors.\n• Polycarbonate Lenses (required for children) are impact resistant and light weight.\n• Trivex Lenses are our choice for drill mounts, rimless, and occupational lenses because they are impact resistant.\n• Polarized Lenses reduce glare and provide protection from harmful UV rays.\nSunglasses are not just about style. They’re essential in protecting your eyes from harmful UV rays. We can make prescription, polarized, sunglass lenses for most frames. Although most sunglass purchases are for adults, children and babies also need UV protection. Studies have shown that 85% of the UV damage done to a person’s eyes occurs before they are 18 years old. We offer prescription and nonprescription sunglasses for all ages.\nOur office can prescribe specialized eyewear to protect your eyes at work or at play. Specialty frames and prescription or non-prescription lenses are available for:\n• Sports including basketball, baseball/softball, soccer, football, racquet sports, etc.","domain":"optical_engineering"}
{"url":"http://agenda.ct.infn.it/event/1310/other-view?view=indico_infn_meeting","date":"2018-09-20T07:16:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156418.7/warc/CC-MAIN-20180920062055-20180920082055-00269.warc.gz","language_score":0.8296098113059998,"token_count":111,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__182140595","lang":"en","text":"EST SCIENCE MEETINGchaired by\nat Giardini Naxos, ME, Sicily, Italy\nThe European Solar Telescope (EST), is a 4-metre class aperture telescope designed to investigate our active Sun at very high spatial and temporal resolution and unprecedented polarimetric sensitivity. Equipped with state-of-the-art instrumentation, it will help scientists understand magnetic coupling throughout the solar atmosphere. EST will be installed in the Canary Islands (Spain) to benefit from unique observing conditions. First light is planned for 2027.","domain":"optical_engineering"}
{"url":"https://devopsnews.online/adva-fsp-3000-cloudconnect-platform-offers-unrivalled-efficiency/","date":"2023-11-29T05:14:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100056.38/warc/CC-MAIN-20231129041834-20231129071834-00686.warc.gz","language_score":0.8910598158836365,"token_count":539,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__110137597","lang":"en","text":"ADVA Optical Networking accomplished a joint field trial of its FSP 3000 CloudConnect and OpenFabric technology in Germany’s live network, Telefónica.\nThe high-density 1RU modular DCI technology achieved carrying wavelengths across infrastructure with no impact on live traffic and error-free 200Gbit/s transmission over a 290km data path.\nThe test demonstrated how the ADVA FSP 3000 OpenFabric creates an agile, flexible and highly scalable network; accelerating service availability and improving operational efficiency.\n‘Cost-effectively tackling the fierce growth’\nHolger Duhn, senior architect at Telefónica Germany, said: “Demand for network capacity is spiraling and this joint field trial is a key part of our response. Its success demonstrates how ADVA Optical Networking’s technology could help us to cost-effectively tackle the fierce growth in our customers’ data requirements.\n“This trial shows that the ADVA FSP 3000 CloudConnect has the potential to maximise the value of our deployed infrastructure. Without the need for a major network upgrade, we’ve succeeded in transporting ultra-high-capacity alien wavelengths at distances spanning more than 1,000km.\n“The FSP 3000 OpenFabric creates an OTN cross-connect optical layer so that lower-speed services can be aggregated onto high-speed wavelengths. This level of flexibility will be instrumental as we look to efficiently provide our customers with the data rates they require.”\n‘The power to leverage deployed infrastructure’\n300Gbit/s capacity was achieved using ADVA’s unique QuadFlex line card to combine two 150Gbit/s wavelengths operating at 8QAM within an optical super-channel. Designed for scalability and bandwidth optimisation, the ADVA FSP 3000 CloudConnect platform offers unrivalled efficiency.\nFrank Hering, director at ADVA Optical Networking, added: “Our innovation is redefining optical transport. As this trial demonstrates, service providers now have the power to leverage so much more value from their deployed infrastructure. With our latest solutions, such as the new approach to OTN cross-connects offered by our FSP 3000 OpenFabric, we’re expanding the boundaries of possibility.\n“Our FSP 3000 OpenFabric removes slot capacity assignments and the proprietary fabric adapters of a closed system, enabling a mix of optical services and scale. It DCIprovides network operators with total flexibility, allowing them to easily manage their traffic to meet demand.”\nWritten from press release by Leah Alger","domain":"optical_engineering"}
{"url":"https://midmarine.com/product/led-navigation-light-red-port/","date":"2022-12-04T08:24:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710968.29/warc/CC-MAIN-20221204072040-20221204102040-00102.warc.gz","language_score":0.8638613820075989,"token_count":177,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__253923374","lang":"en","text":"Red Port LED Navigation Light DomeNav Range boats up to 20m\nRed Port Bright LED signal light. Aesthetically designed round light, blends in with any hull or deck background.\nSuitable for 12V an 24V systems, on boats up to 20m.\nOrder by 12pm, for Same Day Dispatch\n47 in stock\nAll DomeNav Range of Navigation lights are suitable for vessels up to 20 metres in length.\nAesthetically designed with matching white glass cover, shows signal colour only when lit up.\nRed Port Signal Light.\n- Visibility: 2Nm\n- Beam Angle: 112.5°\n- Housing Colour: White\n- Housing Material: Plastic\n- Bulb Type: 1W LED\n- Voltage: 8 – 30 V DC\n- Wattage: 1.3W","domain":"optical_engineering"}
{"url":"https://cexyviracevejejek.pashupatinathtempletrust.com/optical-measurements-book-20780ou.php","date":"2022-01-21T17:56:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303512.46/warc/CC-MAIN-20220121162107-20220121192107-00064.warc.gz","language_score":0.8864917159080505,"token_count":2104,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__14495167","lang":"en","text":"5 edition of Optical measurements found in the catalog.\n|Statement||Franz Mayinger, Oliver Feldmann (eds.).|\n|Series||Heat and mass transfer|\n|Contributions||Mayinger, F., 1931-, Feldmann, Oliver.|\n|LC Classifications||QC367 .O585 2001|\n|The Physical Object|\n|Pagination||xvii, 403 p. ;|\n|Number of Pages||403|\n|LC Control Number||2001020640|\nABOUT THE BOOK Engineering Metrology and Measurements is a core subject for mechanical, production, and allied disciplines in all the major universities in India. Although there are a few good books available on metrology, the coverage of topics on mechanical measurements is either scanty or. The microstructure associated with a material affects the angular distribution of scatter, and specific properties can often be inferred from measurements of that scatter. For example, roughness, material inhomogeneity, and particles on smooth surfaces contribute to optical scatter, and optical scatter can be used to detect the presence of such defects.\nThe ability to perform surface roughness measurements is critical to maintaining component quality within predefined limits. Surface Measurement Systems 3D Optical Surface Profilers from ZYGO are white light interferometer systems which offer fast, non-contact, high-precision 3D surface measurement and surface roughness metrology. You get. Analyzing Differences in Bacterial Optical Density Measurements between Spectrophotometers Brian C. Matlock 1, Richard W. Beringer 1, David L. Ash, Michael W. Allen2 and Andrew F. Page 1ThermoFisher Scientific, UV-Vis/Fluor-Molecular Spectroscopy, Wilmington, DE. 2ThermoFisher Scientific, UV-Vis/Fluor-Molecular Spectroscopy, Madison, WI. 2 Abstract\nOur authors and editors. We are a community of more than , authors and editors from 3, institutions spanning countries, including Nobel Prize winners and some of Cited by: 4. Download Engineering Metrology and Measurements By Raghavendra, Krishnamurthy – Engineering Metrology and Measurements is a textbook designed for students of mechanical, production and allied disciplines to facilitate learning of various shop-floor measurement techniques and also understand the basics of mechanical measurements. With a conventional introduction to the principles and.\nLetter on happiness\nSophisticated product liability litigation 96\nRealignments in the Communist and Western worlds\ndramatic works of J.W. Goethe\nstatus of school-age child care in Florida\nDr. Jekyll and Mr. Hyde\nTreatment programs for sex offenders\nseminary movement in the United States\nPutting parliaments at the heart of the APRM\nGeological map of the Cascade coal basin Alberta, Cascade River\nSpecial trigonometric series in k-dimensions\nConstruire des ponts\nChemical Defenses in Eucalyptus Species: A Sustainable Strategy Based on Antique Knowledge to Diminish Agrochemical Dependency\nBuilding your own microcomputer.\nThe Home day care manual\nNov 19, · Fiber Optic Test and Measurement [Dennis Derickson] on pashupatinathtempletrust.com *FREE* shipping on qualifying offers. This is the most authoritative, complete source of test and measurement information for engineers who design and maintain fiber optic networks.\nThis book presents measurement principles for characterizing all three basic components of a fiber optic communication system: the optical 5/5(8). This book provides an introduction to the most important optical measurement techniques that are applied to engineering problems.\nIt will also serve as a Optical measurements book to selecting and applying the appropriate technique to a particular pashupatinathtempletrust.com: Oliver Feldmann. This book provides an introduction to the most important optical measurement techniques that are applied to engineering problems.\nIt will also serve as a guideline to selecting and applying the appropriate technique to a particular problem.\nOptics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.\nMost optical phenomena can be accounted for using the classical electromagnetic description of light. Increasing possibilities of computer-aided data processing have caused a new revival of optical techniques in many areas of mechanical and Optical measurements book en gineering. Optical methods have a long tradition in heat and mass transfer and in fluid dynamics.\nGlobal experimental information is not sufficient. Optical Spectroscopy bridges a gap by providing a background on optics while focusing on spectroscopic methodologies, tools and instrumentations. The book introduces the most widely used steady-state and time-resolved spectroscopic techniques, makes comparisions between them, and provides the methodology for estimating the most important characteristics of the techniques such as sensitivity.\nWith this accessible, introductory guide, you will quickly learn how to use and apply optical spectroscopy and optical microscopy techniques.\nFocusing on day-to-day implementation and offering practical lab tips throughout, it provides step-by-step instructions on how to select the best technique for a particular application, how to set up and customize new optical systems, and how to analyze Cited by: 1.\nOptical measurements that have been routinely used to assess visibility impairment are outlined in Table Measurements are grouped into four categories: scene monitoring, scattering, absorption, and extinction, which is the sum of scattering and absorption.\nIn most cases, the measurement is associated with some type of detector from which a voltage or current is extracted; however, for each. The contributions are aiming to provide practicing engineers, both in industry and research, with the recent state-of-science in the application of advanced optical measurements.\nThe book is written by selected specialists representing leading experts in this field who present new information for the possibilities of these techniques and give. This is a tiny but complete and well-illustrated handbook of optical instruments and measurements—what the authors calle a crash course, “What is that thing?”-type guide, full of practical lab tips and tricks throughout the book.\nThe benefits of optical measuring technology are its high point density and speed. You receive informative results in a very short time. We use various systems: multisensor coordinate measuring machines in the ZEISS O-INSPECT class, white-light sensors for non-contact surface assessment and topography measurement, plus the latest 3D scanners.\nNote: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied. Oct 20, · Optical measurement is a measurement technique that relies on the use of optical sensors to collect measurements.\nThere are advantages and disadvantages that must be weighed when using devices capable of optical measurement. This book deals with the practice of Optical Radiation Measurements with introductory material to introduce the topics discussed.\nIt will be most useful for students, scientists and engineers working in any academic, industrial or governmental projects related to optical radiation. The book contains chapters that treat in detail the procedures and techniques for the characterization of both.\nOptical Scattering: Measurement and Analysis, Third Edition. Add to cart. Book Description. The first edition of this book concentrated on relating scatter from optically smooth surfaces to the microroughness on those surfaces.\nin these systems. Scatter measurements, now routinely used to determine whether small-surface features are. Based on the author’s previous SAE book, Engine Combustion Instrumentation and Diagnostics, this book focuses on laser-based optical techniques for combustion flows and in-cylinder measurements.\nIncluded are new chapters on optical engines and optical equipment, case studies, and an updated description of each technique.\nApr 01, · In this article, the question we’ll address is: when is optical measurement the right approach, and why. The Need for Speed. For many applications, the number one benefit of optical measurements is speed. Optical approaches can capture a great many high accuracy data points within a single field-of-view, almost pashupatinathtempletrust.com: Patrick Beauchemin.\nAlthough these measurements are not as accurate as those provided by a linear scale, they are more economical and are certainly quite sufficient for many users' needs. Whatever kind of measurement you are doing, it's important to have the best optical resolution for feature detection.\nOptical measurement system layouts and methods will be presented and compared, and the impact of such measurements as they relate to human factors such as visual perception will be discussed. All measurements and methods will be taught through a strong theoretical foundation moving then to a focus on practical applications of these results.\nOptical Measurement Techniques • An accousto-optical modulator (Bragg Cell) can Make measurements of flow through the measurement plane.\nFigure courtesy of DANTFigure courtesy of DANTEC Measurement TechnologyEC Measurement Technology. Title: Microsoft PowerPoint - pashupatinathtempletrust.com. Oct 01, · High-Tech Measuring Digital measuring units, devices, and apps have been developed that capture the many and precise measurements of the eyes and eyewear positioning, commonly called position-of-wear.\nThe iFit Dispensing System from Luzerne Optical Laboratories.Optical Measurements for Scientists and Engineers - by Arthur McClelland April Email your librarian or administrator to recommend adding this book to your organisation's collection. Optical Measurements for Scientists and Engineers.\nArthur McClelland, Max Mankin; Online ISBN: Author: Arthur McClelland, Max Mankin.A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.","domain":"optical_engineering"}
{"url":"http://cheyney.com/print.aspx?id=2&type=projects","date":"2018-12-12T21:07:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824119.26/warc/CC-MAIN-20181212203335-20181212224835-00551.warc.gz","language_score":0.938298225402832,"token_count":118,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__82549261","lang":"en","text":"Analysis of Abrasive wheels\nAbrasive cutting wheels operate at very high speeds – low density regions within the wheel can be very hazardous.\nCDD have combined Xray mass measurement with laser thickness measurement to accurately map the density across the parts. The system calculates the spot density of each point on a 0.5mm matrix across the entire surface of the wheel. Up to half a million points are scanned on each wheel, as part on an in-line inspection system.\nThis is used as part of a process monitoring system to ensure even deposition of the abrasive material.","domain":"optical_engineering"}
{"url":"https://theintegratedhome.net/blog/lamp-vs-laser-projectors-which-is-best","date":"2021-04-13T23:41:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038075074.29/warc/CC-MAIN-20210413213655-20210414003655-00062.warc.gz","language_score":0.9109958410263062,"token_count":868,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__125987905","lang":"en","text":"Movie lovers and TV buffs choose to install projectors formany reasons. First,you can enjoy screen dimensions vastly larger than most TVs, then retract it into the ceiling when it’s not in use. Projectors allow for dynamic, multipurpose spaces, where in one moment you’re chatting and playing games with friends and in the next, create a home theater setting.\nBut not all projectors produce the same image quality. Some projectors use an internal lamp as the video’s light source, while newer models use a laser light source. The difference between a lamp or laser creates different visual results—and the amount taken out of your wallet.\nSony, one of the most highly regarded projector manufacturers worldwide, builds both a laser and lamp 4K SXRD projector for home media rooms. We’ll compare the qualities of both so you can find the best fit for your Charlotte, NC home.\nLamp projectors are what most people are familiar with. DLP (Digital Light Processing) projectors use an internal lamp to project images on a screen. LCD projectors also use a lamp but offer sharper, crisper images and may appear brighter than DLPs.\nLamp-based projectors are a lower investment than laser projectors, and while you may have to replace the bulb every few years, full brightness will be restored when you do. Many high-quality lamp projectors are available, like Sony’s VPL-VW715ES, providing 1,800 lumens of brightness and 4K resolution.\nLamp projectors have a much shorter lifespan than lasers, with only 6,000 hours compared to laser’s 20,000. Still, that’s a lot of time before you’ll see image quality and brightness degrade.\nIn general, lamp projectors are not as bright and therefore offer a duller image than a laser would. It takes time for the lightbulb to warm up and requires an internal fanto prevent the projector from overheating. The whirring fan can be distracting, and if anything happens to the lamp, your projector is useless. Whereas in a laser lamp, if one laser diode fails, it can still function.\nHow does a laser produce a movie on your wall? If we’re getting technical, laser projectors use blue laser diodes that shine onto a phosphor-coated spinning wheel. The separated red, green, and blue colors are sent to a chip, sending the light through a lens onto the screen.\nLaser projectors, like Sony’s VPL-VW915ES, last five times longer than lamp-based projectors. In fact, a laser projector could run continuously 24/7 for two years before it gave out. That means you could also play it for forty hours a week for a decade before needing to replace it.\nLaser projectors produce much stronger color contrast and color accuracy than lamps, so your image screen won’t look ‘off’ or distorted. The laser’s performance is more consistent and steadier and won’t dim over time. The VW915 by Sony is brighter, too, at 2,000 lumens, so you’ll still see a clear image even if there’s some ambient light in the home theater.\nLasers have a more focused energy source, reducing heat dissipation. You won’t have to worry about it overheating, and it requires less power for an even brighter outcome.\nLaser projectors are much pricier than lamp versions. But consider that you won’t have to change the bulb for a laser projector and likely won’t have to replace it in your lifetime.\nIf you want the best image quality and longest lifespan possible, then a laser projector is your best bet. If a lower price is important to you and you’re willing to sacrifice color and brightness, then go for a 4K lamp projector.\nIf you’re looking for 4K Sony projectors in Charlotte, NC, you can see them in action at The Integrated Home’s Showroom. Contact us here to learn more. We look forward to helping you!","domain":"optical_engineering"}
{"url":"https://stjonthemove.org/blog/2019/2/27/roy-g-biv","date":"2019-09-16T15:06:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572744.7/warc/CC-MAIN-20190916135948-20190916161948-00166.warc.gz","language_score":0.9416581392288208,"token_count":133,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__29514980","lang":"en","text":"This week, second graders worked with prisms to learn how white light is refracted to produce a rainbow. On a bright day, students were able to “make” their own rainbows using rectangular prisms in our outdoor science lab.\nWhen light passes through a prism, the light bends. As a result, the different colors that make up white light become separated. This happens because each color has a particular wavelength and each wavelength bends at a different angle. The colors that appear are red, orange, yellow, green, blue, indigo, and violet (the colors of the rainbow- “Roy G. Biv”)!","domain":"optical_engineering"}
{"url":"http://auburn-magazine.blogspot.com/2013/05/know-your-camera-filters.html","date":"2017-04-24T05:26:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119080.24/warc/CC-MAIN-20170423031159-00215-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9065300226211548,"token_count":747,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__151117682","lang":"en","text":"- ► 2015 (21)\n- ► 2014 (64)\n- Big Data\n- business technology\n- business video\n- cloud services\n- corporate IT\n- economic development\n- managed cloud services\n- online business\n- public cloud\n- social media\nDiberdayakan oleh Blogger.\nFilters are common accessories purchased by the photographer after buying the camera. Filters are usually always mounted on the camera lens that serves to filter out ultraviolet rays so that the color becomes brighter. In addition, the filter also to protect the lens from impact and scratches.\nThere are different types of filters are commonly used in a pemotertan. Include the following:\n1. Filter Ultra Violet (UV). Media films are very sensitive to this type of light, the effect on the photograph is faded colors like misty. Sensors in digital cameras are not overly sensitive to UV light such as a movie, but the use of the UV filter will increase the color contrast of the images. The main function of the UV filter to protect the lens from scratches and impact. So if you do not use another filter, let alone the UV filter mounted on the lens.\n2. Filter Neutral Density (ND). This filter is gray with various levels of concentration. Useful to reduce the intensity of light reaching the sensor. So it can shoot a longer exposure time. If you want to shoot slow speed during the daytime, ND filter is mandatory equipment.\n3. Graduated ND filters. An ND filter with a density change gradually as gradation from dark to light. This filter is very useful for landscape photography in bright daylight. At the time of use, the more dense installed above, function to reduce the light from the sky and maintain the light from the mainland in order to obtain images with uneven illumination with blue sky.\n4. Polarizer filter. Serves to reduce light reflection from non-metal surfaces. Very useful for shooting through the glass, such as shooting fish in aquariums or historical objects in the museum. This filter also improves contrast and color, as well as reduce light scattering. The effect was most apparent when used to photograph the clear sky with white clouds. Polarizer is very influential effect on the photo and can not be obtained through a digital process. There are 2 kinds of polarizer: linear polarizer with a straight line direction and circular polarizer (Pol Cir or CPL) which has the direction of the line of circular-polarizer viscosity can be adjusted by turning the front ring.\n5. Filter Macro or Close Up. Function to change the focal length to allow for shooting an object with a very close distance. Also serves as a magnifying glass (magnifying glass). However, the use of a macro filter will take effect, such as lighting down 1-2 stops, reduced sharpness and DoF is narrower.\n6. Filter Infra Red (IR). IR filter will pass infrared light and hold another spectrum of light. Basically, the camera sensor is designed to not be sensitive to IR light, thus causing the need for the use of IR filters lighting in a long time or a slow shutter speed.\n7. Artistic filters or color. Provide shades usually associated with certain mood. For example, giving the impression of a cold blue color, while the color orange will give a warm impression. Yellow filter will enhance the contrast of the color of the sky and clouds. Currently, these shades can be added through the digital imaging process that is rarely used color filter\nFind the related articles about Best Camera 2013 in Best Digital Camera 2013.\n0 komentar to \"Know Your Camera Filters\"","domain":"optical_engineering"}
{"url":"https://www.epomec.ae/faculty/international-speakers/dr-walter-sekundo/","date":"2020-05-25T05:55:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347387219.0/warc/CC-MAIN-20200525032636-20200525062636-00559.warc.gz","language_score":0.9603551030158997,"token_count":210,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__196836666","lang":"en","text":"Prof. Walter Sekundo is Medical Director of the Marburg Eye Clinic of the UKMG (University Clinic Marburg Gießen), Germany and Professor of Ophthalmology at Phillipps University of Marburg. He is a specialist in cornea, cataract and refractive surgery. He is one of the inventors of SMILE. Thanks to his data from long term experience with SMILE, he together with Prof. Blum recently published a paper on the 10 year results with this minimally invasive procedure. He is convinced that the future of corneal refractive surgery is minimally invasive.His interest is also in the management of presbyopic patients, considering several options such as corneal refractive treatment and lens based treatments.Prof. Sekundo is member in 7 national and international expert associations. He is also reviewer for several professional journal and the German “LASIK TÜV”. He is official instructor for other surgeons in the field of cornea and refractive surgery.","domain":"optical_engineering"}
{"url":"https://www.tracerco.com/news/novel-inspection-techniques","date":"2019-04-24T08:29:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578636101.74/warc/CC-MAIN-20190424074540-20190424100540-00267.warc.gz","language_score":0.9061916470527649,"token_count":239,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__68493027","lang":"en","text":"Leading industrial technology specialist Tracerco, part of the Johnson Matthey group has developed its novel inspection techniques to provide a rapid, cost effective and reliable method to assist operators and integrity management companies with statutory and routine vessel condition assessment in a subsea environment.\nThe TRACERCO DiagnosticsTM Scanning techniques have been widely used for over 50 years in the process industry to define tank inventories and to locate gas/liquid interfaces, liquid/liquid interfaces and solid accumulations.\nThe inspection technologies are now available for subsea application, to provide accurate and fully reliable subsea measurements for vapour/liquid interfaces contained within Mid Water Arches, Buoyancy Tanks, Mooring Points and other such subsea equipment. Vessel integrity can now be determined real time via online measurements, which effectively make the vessel transparent thereby, providing \"insight onsite\".\nThe technique is non-intrusive and is easily deployable by diver operated or ROV (Remotely Operated Vehicle). The detector (pictured below in Figure 1) feeds real time inspection data to the TRACERCO DiagnosticsTM engineer on the deck, where expert interpretation provides the client with instant feedback.","domain":"optical_engineering"}
{"url":"https://www.hengfatools.com/?list_20/115.html","date":"2023-12-01T03:09:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00442.warc.gz","language_score":0.887533962726593,"token_count":321,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__62373124","lang":"en","text":"In the labor production that may damage the eyes, the correct wearing of safety glasses can avoid or reduce the damage to the eyes, so how to wear protective glasses correctly? What precautions should be taken when wearing protective glasses? How to maintain protective glasses when not in use?\n1. Precautions for wearing protective glasses\n1. Before wearing the protective glasses, you must choose a style of the right size to ensure good tightness and avoid shaking or falling off during operation, which will bring safety hazards;\n2. The frame of the glasses should match the face to avoid light leakage from the side. If necessary, use glasses with goggles or anti-side light;\n3. Prevent the glasses from being damp and pressed, so as to avoid deformation damage or light leakage;\n4. When the protective sheet and the filter are used in combination, the diopter of the lens must be the same.\nSecond, the maintenance method of protective glasses\n1. If the protective glasses are temporarily placed, the outer side of the glasses should be facing up to prevent grinding lenses;\n2. After use, apply a specially clean glasses cloth to wipe the protective glasses with water mist and stains;\n3. Protective glasses should be placed in the corresponding glasses case. When not wearing glasses, please wrap them with glasses cloth and put them in the glasses case. Please avoid contact with corrosive items such as insect repellents, toilet cleaning supplies, cosmetics, hairspray, medicines, etc. during storage, otherwise the lenses and frames will be deteriorated, deteriorated, and discolored.","domain":"optical_engineering"}
{"url":"https://blog.physics-astronomy.com/2023/09/this-award-winning-photo-shows-single.html","date":"2024-04-22T02:51:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818072.58/warc/CC-MAIN-20240422020223-20240422050223-00439.warc.gz","language_score":0.9031004309654236,"token_count":448,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__16329546","lang":"en","text":"microscopes, it’s impossible to see one with the naked eye. At least, such was\nthe case in the past. We now have an image of a single atom floating in an\nelectric field that can be seen without the use of a microscope.\nThe picture “Single Atom In An Ion Trap,” taken by David\nNadlinger and featured above, won the Engineering and Physical Sciences\nResearch Council’s scientific photography competition. A single strontium atom\nis embedded in a powerful electric field and then blasted by lasers, causing it\nto radiate light.\nDespite the fact that the atom is visible, it is not the\neasiest to see. A faint blue dot can be seen in the center of the photo if you\nlook properly. A blue-violet laser illuminates the strontium atom in this\nStrontium is used in this equipment because of its size:\none single atom has 38 protons and a diameter of a a few millionths of a\nmillimeter. Normally, this would be too minuscule to see, but this\nconfiguration uses a creative approach to brighten the atom significantly.\nA high-powered laser strikes a strontium atom in the\nsnapshot, causing the electrons surrounding the atom to become more energetic.\nThese charged electrons will occasionally emit light. An ordinary camera can\nphotograph the atom if there are enough energized electrons emitting enough\nHowever, this does not imply that you will be able to see\nthe atom with your own eyes. This is a long-exposure photo, so even with all\nthat laser light, it’s too faint to see without special equipment. However,\ngiven how small atoms are, staring at this photo is probably the closest you’ll","domain":"optical_engineering"}
{"url":"https://cctvsmartsystems.co.uk/cctv/","date":"2023-12-07T16:56:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100677.45/warc/CC-MAIN-20231207153748-20231207183748-00897.warc.gz","language_score":0.9075080156326294,"token_count":2297,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__135612037","lang":"en","text":"|CCTV Systems||Camera Resolution||4 Channel with CCTV Cameras in White or Black.||Our Installation Price|\n2592 x 1944\n|4. Channel System||£899 + Vat|\n2592 x 1520\n|4 Channel System||£799 + Vat|\n1600 x 1200\n|4 Channel System||£599 + Vat|\n2048 x 1536\n|4 Channel System||£699 + Vat|\nHD – High Definition: As of 2017, Analogue HD CCTV supports resolution of 720p and 1080p, whilst digital IP cameras support 720p all the way to 5 Megapixels.\nFrame Rate: Typical frame rates of CCTV cameras are 25 FPS (frames per second). This means smooth video, whilst also keeping file size lower on the DVR hard drive.\nLenses: A CCTV lens is made from glass and focuses light from the scene onto the camera’s image sensor.\nField of View: This is the width or height of the scene monitored by the CCTV camera.\nWhat is Depth of Field?\nThe depth of Field (DoF) can be defined as the zone that is focused on the video image, on the front to back axis. So, in all video there will be an area in front and behind the target area that is in focus. Sometimes there will be a very small focused zone and this is called shallow depth of field and a large zone of focus is called deep depth of field. Three key factors affect DoF: aperture, camera distance from the subject and the lens focal length.\nFocal Length: The lens’ focal length determines the field of view at specific distances.\nVarifocal Versus Fixed Lenses: With a fixed lens, you cannot adjust the focal length, zoom or angle of view. Most fixed lens cameras use a wide angle. On a varifocal lens, these settings can be adjusted.\nMore about Varifocal CCTV Cameras\nVarifocal lens security cameras are generally more expensive than the fixed spectacles but offer the following advantages. With a fixed lens, your installer would have to physically move and reinstall the camera to adjust the field of view. With a varifocal lens, the installer can adjust the focal length to change the field of view. With a varifocal lens, the settings can be adjusted to capture a specific localised area at your premises, whether that be a doorway or a window etc. Even if a camera is positioned far away across a room then it’s still possible to zoom in and focus on the doorway. In other words, it’s easier with varifocal to capture the action you need. The people or objects in that area will be larger and therefore better for identification and to use as evidence. Sometimes the only location for a camera outside is under a roof overhang, but this may be too far away from the area you want to view and the solution without moving the camera mounting position is to use a varifocal lens and zoom into the scene you want to capture.\nCCTV Smart Systems recommend and use varifocal lenses for our installations as we can adjust the lens easily and they are generally easier to work with.\nWireless CCTV Camera\nTypes of Iris: Auto, Fixed & Manual Iris. What is an Iris?\nAn iris is an opening or aperture that controls the level of light that travels through the lens. This is known as ‘exposure’. A CCTV camera iris works in a similar way to a still camera, the more open the iris is, the brighter the image will be. Control of the iris is important in increasing the quality of the image. The iris ensures an optimal light level to the CCD image sensor so that images are clear, sharp and have good resolution and contrast (see further down this guide).\nFixed Iris: A CCTV camera with a fixed iris is ideal for settings where the light levels are constant, for example indoors. These cannot be adjusted and are the least expensive.\nManual Iris: Similar to fixed irises but can be adjusted manually when installed. Again, suitable for indoor use.\nAuto Iris: An auto iris is part of a motorised lens and has the ability to automatically adjust to keep a constant level of light in the video image – this is useful for environments where the light levels change, for example outdoors.\nP-Iris: This is a ‘precise’ iris. It auto adjusts like the auto iris, but additionally, the camera’s software allows improved video clarity and depth of field. The key aim of the P-Iris is to improve the quality of the image by allowing optimal iris position so that the central, best-performing part of the lens is used as much as possible.\nCCTV Smart Systems generally uses auto iris as it’s commonly available and because the camera adjusts itself in various light conditions, saving time and cost.\nWhat is Pan, Tilt, and Zoom (PTZ)?\nPan, tilt, zoom (PTZ) is a type of IP camera where it’s possible for a user to control the position and movement of the camera lens remotely using an internet browser or specialised software.\nPanning is the horizontal movement of the lens, left and right. Tilting is movement in the vertical axis, up and down. Zoom is the changing of the focal length of the lens to bring the subject closer or further away.\nPTZ CCTV cameras often have the ability to have preset positions, so that the operator can easily monitor different images. Some PTZ cameras use ‘triggers’ so that when triggered by moving the camera is directed to a preset position, e.g. a doorway or valuable object. Some cameras also use auto-panning so that the camera moves automatically between presets, allowing a wider surveillance area.\nThe benefits of PTZ is that remote operation of pan, tilt, zoom allows an operator to cover a much wider area with one camera, saving money. Also, large areas can be covered with automatic presets.\nSome PTZ cameras can use their PTZ functions to track moving targets.\nWhat is Video Motion Detection?\nVideo motion detection (VMD) is the ability of a CCTV system to detect movement and switch on the recording. The VMD is controlled by the Digital Video Recorder.\nFor a business setting, VMD allows the operator monitoring the CCTV to not be continually focused on camera footage where there is no change in the image. The VMD system processor monitors the cameras continuously. Where there is no operator, VMD is useful to save hard drive space on the DVR as it will only record footage where motion is detected. Also, all the footage that is recorded will have movement events which can be played back to monitor, saving time on monitoring.\nMotion detection will compare the current image to the previous one and if any of the pixels have changed then it has detected movement.\nAuto-Tracking Objects with PTZ CCTV Cameras\nAutomatically tracking moving objects can be achieved with PTZ auto-tracking, which is a type of camera software closely associated with motion detection. Auto-tracking takes motion detection one step further and calculates which part of the image is moving and then defines it as an object. The camera will then move to keep that object in the frame. This is useful for tracking an intruder and generating evidence.\nWhat is Contrast? Contrast is the separation between the brightest and darkest areas of the video image. Increasing contrast increases the separation between bright and dark, so shadows, for example, will appear darker, whilst light areas will be brighter. If the contrast is decreased then shadows will become lighter and highlights darker, bringing each one closer to each other.\nCCTV Installation York\nMonochrome Versus Colour\nCameras are available that capture video in colour, monochrome (black and white) or switch between these. The switching cameras are used for low lighting environments and the reason for using these is that monochrome is more sensitive to low lighting environments. Also, monochrome can be used with infrared lighting.\nWhat is Night Vision? Night vision is the ability for a camera system to have a vision in complete darkness or improvement of vision in low light.\nNear-infrared illumination is a popular method of night vision. With this method, the camera’s CCD detector is sensitive to near infrared radiation which is invisible. This is coupled with the infrared light emitting LEDs on the camera. At night, a lux (unit of illuminance) sensor on the camera detects low light levels and then switches the camera chip to monochrome and turns on white led lights and red infrared lights, the camera then records in black and white and you can see a clear picture recorded on the system.\nMany incidents of crime will occur in the night time and so it’s important to install cameras that perform well at night.\nWhat is License Plate Recognition CCTV Cameras?\nCamera systems can also be enabled with LPR (License Plate Recognition). The British Police first invented LPR in 1976 and initially, it was a crude system with limitations, but several decades later though it is advanced and reliable.\nLPR captures images or video of license plates and when processed this results in a text entry of the license plate.\nWhat are Best Branded Versus Non-Branded cameras?\nBranded Hidden cameras are preferable to cheaper non-branded models. With branded cameras there is a quality control process, the cameras comply to all relevant standards in Europe and they are more durable and reliable cameras. Unbranded cameras are not certified products. We use branded products as they are better quality.\nQVIS is a good quality brand, but high-security organisations such as banks use Honeywell as they offer even better quality. Sony and Samsung are also very high quality.\nPhysically, unbranded and branded cameras may look the same or similar, but unbranded do not perform as well in terms of image quality.\nMy Final Thoughts\nAs you can see from reading this article, there are many parameters involved in choosing a CCTV camera. The variety of options can be bewildering and for the uninformed, choosing the right cameras for a specific application is not straightforward. Every link in the chain in a CCTV system is important, from the actual camera and its functionality to cabling and electrical power considerations. Each element needs to work together in harmony to deliver the best possible video image. We hope that you now have a better understanding of CCTV cameras and their application.\nAreas Covered By CCTV Smart Systems\nBirmingham, Bath, Blackburn, Bradford, Bolton, Chester, Coventry, Crewe, Derby, Blackpool, Huddersfield, Harrogate , Hull, Halifax, Liverpool, Lancaster, Leicester, Lincoln, Leeds, Manchester, Milton Keynes, Motherwell, Newcastle upon Tyne, Nottingham, Northampton, Oldham, Peterborough, Preston, Sheffield, Stockport, Slough, Sutton, Sunderland, Southend-on-Sea, Stoke-on-Trent, Cleveland, Teesside, Warrington, Wakefield, Wigan, York.","domain":"optical_engineering"}
{"url":"https://www.worthytoshare.com/heat-sink-important-for-led-lights/","date":"2023-12-05T11:00:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00658.warc.gz","language_score":0.9480177164077759,"token_count":1299,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__133139560","lang":"en","text":"Whenever we decide to buy LED lights, we mainly take factors like cost, durability, brightness and energy efficiency into consideration and most often forget important factors like Heat Sink, Beam and Kelvin ratings.\nWe don’t deny that energy efficiency, brightness and cost are not important factors to consider but while selecting LED lights Beam Angle, Heat Sink and Kelvin ratings are also equally important and deserve the same attention.\nHere is how Heat Sink, beam angles and Kelvin temperatures make your LED Lighting more amazing and useful.\nHeat Sink: Construction, importance and uses\nLED lights have taken over both CFL and Tungsten LED bulbs in a very short span of time because of their high durability and energy efficiency factor. Before the arrival of LED lights, it was Tungsten and CFL lights being widely used all over the world.\nA Tungsten bulb can merely serve you 5,000 hours of power while as an LED light can last for as long as 100000 hours that is equivalent to 12 years. So durability is certainly major decision to take while purchasing LED Bulbs and Tube Lights.\nHow long will the light lost, this question invariably pops up. Did you know which feature of LED light decides its durability? The feature is Heat Sinks of LED lights which are placed at their back. A question may come into your head that if the LED lighting is working properly then why you should care about Heat Sinks installed at the back of it.\n- For your information, we will like to add to your knowledge that heat sink is not a vestigial or less important feature in any aspect for LED lights, in fact, it is this factor that decides the durability of a light. So more the heat sinking capacity of a light, the higher will be its durability. The strength of a heat sink will be decided by the material of which it is made.\n- All of us have experienced that when an electric current is passed through a bulb, some energy is definitely converted into heat energy. In case of incandescent bulbs, its percentage is quite high and in case of LED, it is negligent in almost all LEDs.\n- If it is slightly high in an LED light, it is definitely going to affect the durability of it. This is because more energy will be wasted in converting energy into heat and less will be available for converting into visible light thereby affecting the luminous performance of LED lights.\n- The luminescent performance of LED lights is measured in Watts/ Lumens. More watts an LED light consumes, less is its efficiency & more the Lumen rating of a light, higher is its efficiency.\nConstruction Of A Heat Sink\nHence to increase the efficiency of lights, Heat Sinks are used. If you are still wondering what this heat sink is and how it increases the efficiency of an Electric bulb, then learn about it here.\nIt is like a washbasin installed in the kitchen which drains excess water to facilitate a smooth and continuous flow of water in it. The heat sink in LED drains the heat produced so that it doesn’t produce any effect on the efficiency of the light.\nThe efficiency of a heat sink is determined by its size, finishing and orientation with the light and most important on the material used in its construction. The copper would have been the better choice but due to its expensiveness, nowadays aluminum is used in heat sinks which are also a very efficient heat conductor. The size of the heat sink should be large and it should be coated with paint.\nColour Temperature And Kelvins\nThe colour temperature determines the colour of the light source. The LED Lights are classified as Daylight, Natural, Warm and cool colours. Each LED light on the basis of its colour gives it a specific look and feel. And each colour has its certain specific applications. Though the description of the colour is given on the packages of LED lights, you still need to know which LED light is apt for which atmosphere.\nThe colour temperature of LED lights is measured in Kelvins. This unit is unique for LED lights. Higher Kelvin rating means cooler the light colour will be and lower ratings will mean warmer colour lights. The Kelvin ratings of an LED light starts from 2700K to 6500K. For your information, the temperature has nothing to do with the Kelvin ratings of a bulb.\n- Warm White Light – 2700K- 3500K; calm and reducing light; better for living rooms, dining rooms and bedrooms\n- Natural White Light- 3500K to 4500K; cool and clean; mimics sunlight, good for any location.\n- Day Light- 5000K-6000K; clear crisp; ideal for security lights, garages, or retail locations and offices.\n- Cool White Light- 6000K-7000K; good in commercial and industrial applications to foster alertness.\nLED Lights And Significance Of Beam Angles\nLED Lights are unidirectional that is they emit light in a very specific direction. So it becomes important to devise a way to ensure the right spread of an LED light. The best way to do it will be select a beam angle for a bulb.\nThough the beam angle is usually mentioned in the package it is important for you to know which typical beam angle suits which environment or need. The beam angles start from 15- 100 and occasionally can go up to 120 and 180 as well. Remember the efficiency of the LED lights can decrease if the beam angle is higher.\n- Spotlight- Beam angle 30; high brightness: fewer watts; used in shops, malls and workshops mainly; serves a decorative purpose.\n- Downlighting– Beam angle above 30; ideal for high power LED lamps; used indoors to illuminate rooms\n- For High Ceilings– Beam angle 30-45 & lower 60-100 degree.\n- Outdoors And Street Lights – lower beam angles\nLED Lights consume 9 times save energy than the conventional lights and still offer supremely bright light. From compact capsule styles to on-trend filament bulbs, you have a very wide choice available to select an LED light of your favorite color, desired wattage brightness, durability, shape and design. You can purchase LED Lights online as well as offline. There are sites that sell LED Lights Online. Compare Led lights prices according to the size and capacity. They can also vary with the design and shape.","domain":"optical_engineering"}
{"url":"https://www.bike-mailorder.com/100-accuri-otg-gen-2-anti-fog-goggles-clear-black","date":"2023-10-03T14:32:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511106.1/warc/CC-MAIN-20231003124522-20231003154522-00861.warc.gz","language_score":0.8584147691726685,"token_count":395,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__114539210","lang":"en","text":"100% Accuri OTG Gen.2 Anti Fog Goggles Clear - Black\nThe 100% Accuri 2 sets new standards for premium performance at an affordable price and offers first-class protection, vision and comfort! Here as OTG (=over the glass) variant and thus the salvation for spectacle wearers, who can thus wear their optical glasses under the goggle.\nWith exceptional attention to detail, all three Gen 2 models offer a 17.5 percent increased vertical field of view over Gen 1 models.\nAll three Gen 2 models are compatible with the Tear-Off system, have an extra-wide silicone-coated mounting strap for maximum grip, a 9-point lens attachment system to secure the lens in the frame, and an anti-fog coated polycarbonate lens for an unobstructed, clear field of view at all times. The Gen 2 goggles also feature a soft, sweat-wicking face foam and an improved fit on the nose, derived from the revolutionary Armega, for optimal comfort throughout the day.\nIt's 100%'s most versatile goggle system and will be an absolute game changer for riders at all levels of the sport.\nModel with Anti-Fog Clear Lens\n- Flexible, durable frame\n- Anti-Fog coated, scratch-resistant Lexan lens for flawless vision with tear-off pins\n- Expanded eye area allows for large glasses to be worn underneath\n- 9-point lens attachment holds lens securely in frame\n- 45mm wide silicone coated goggle strap prevents slippage\n- Moisture-wicking triple-layer foam for better moisture management\n- The 100% lenses are compatible with all goggle models!\n- Material lens: polycarbonate\n- Incl. microfiber bag","domain":"optical_engineering"}
{"url":"https://www.procity.eu/1-4-sphere-mirror-in-pmma-polymir.html","date":"2023-12-06T04:12:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00712.warc.gz","language_score":0.9166868925094604,"token_count":135,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__177315253","lang":"en","text":"1/4 sphere mirror in PMMA & POLYMIR®\nDesigned to control traffic through an intersection from 3 different directions, our wall-mounted half-dome mirrors help guide indoor vehicle and foot traffic.\nInstallation: half-dome mirrors are mounted to a wall using screws and anchors (included).\nPolymir® Quality: the Polymir® mirror surface reflects a clear image with no distortion. It is unbreakable, impact-resistant, and has an anti-UV surface treatment.\nPMMA Quality: the PMMA mirror surface offers a clear view with flawless image quality. While sturdy, it is still subject to breakage.","domain":"optical_engineering"}
{"url":"http://troodon80.deviantart.com/art/Mass-Effect-2-M-5-Phalanx-Pistol-Reference-270159195","date":"2015-01-26T00:18:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-06/segments/1422115867691.21/warc/CC-MAIN-20150124161107-00218-ip-10-180-212-252.ec2.internal.warc.gz","language_score":0.9894558191299438,"token_count":139,"dump":"CC-MAIN-2015-06","global_id":"webtext-fineweb__CC-MAIN-2015-06__0__16644321","lang":"en","text":"I loved this gun in ME2, the damage was insane and the laser sight was incredible. I was pumped when I heard that ME3 would let you modify weapons and that the Phalanx wouldn't come with a laser sight by default. I was hoping that the laser sight would be a mod for all pistols.\nThen ME3 came out and there was no laser sight and the Phalanx damage was nerfed considerably... Needless to say I was really bummed.\nI actually hoped for a laser sight mod for different weapons. It's probably just too difficult to implement something like that. Or the feedback for the laser sight just wasn't good enough for them to bother with.","domain":"optical_engineering"}
{"url":"http://maniacmania.com/whats-the-difference-between-led-and-lcd-tv/","date":"2017-10-21T21:30:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187824899.43/warc/CC-MAIN-20171021205648-20171021225648-00014.warc.gz","language_score":0.9546080231666565,"token_count":503,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__221688225","lang":"en","text":"Television technology has grown by leaps and bounds. You might have only known television shaped like a tube and black and white images. You are familiar with the technology television CRT, LED, LCD, plasma, and others. The television also has a wide range of colors. One technology that is the most widely sold in the market is LED and LCD. There are many people who think that the television is the same technology. Both types of television have a lot of difference.\nLED and LCD have different stands. LCD stands for Liquid Cristal Display and Led stands for Light Emitting Diode. Actually, both of these abbreviations have been explained briefly about how the works of this technology type.\nDifference of How it Works\nLCD and LED backlight using a technique to display images. In LCD televisions, crystal display radiation is generated by the neon lamp or CCFL (Cold Cathode Fluorescent Lamps). In LED televisions, lighting is done by a Light Emitting Diode. This technique makes the power consumption of the LEDs and LCD has differences. Televisions with LED technology can save energy compared with LCD televisions. If the LCD TV uses 100 watts of power, then television with LED technology consumes power only about 50 watts. LEDs are also more durable than the LCD.\nColors displayed on the LCD can be seen well because there is a backlight with the white color that is used for casting the crystals in the LCD panel. Colors displayed by LED TVs do not require a backlight because the panel LED crystals can produce color. LED televisions are generally made with a screen that is thinner than LCD.\nLED and LCD televisions have a distinct contrast between one another. LED televisions typically have a sharper contrast than LCD. You can see the contrast of this two television LCD and LED when placed side by side. The difference will be seen very clearly, especially when showing white or bright colors.\nLED and LCD have different prices. LED technology has a higher price compared to LCD technology. This is due to the LED has the advantage that more than the LCD. You should consider these differences before purchasing a television. We recommend that you buy a TV with LED technology. LED TV prices are higher than with an LCD television, but the money you spend is comparable with the advantages of LED technology on the television.\nThat is the explanation of the LED and LCD. Hopefully, this explanation can answer about What’s The Difference Between LED and LCD TV?","domain":"optical_engineering"}
{"url":"http://www.optimisedtech.com/2014/04/micro-phone-lens-turn-your-smartphone.html","date":"2017-04-29T01:46:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123172.42/warc/CC-MAIN-20170423031203-00453-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9498628973960876,"token_count":223,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__14362427","lang":"en","text":"This $42 lens would turn your smartphone or tablet camera into a power microscope with a really huge range showing images in 150x zoom.\nThe Micro Phone lens gets attached to your device camera very easily and can be pulled off easily when you’re done with your images . Users just need to press on it to adjust the focus of the images and slides. All you need is a light source and a microscope slide to view the things around in detail. The recommended camera resolution for the lens is 5MP and according to the site, the final product will be able to resolve features as tiny as 1.5-1.6 microns.\nThis great lens project has raised money from known the crowd funding site - Kickstarter. Micro Phone Lens is quite inexpensive as it comes for $42 only (which will get you the lens plus the additional accessories along with it. At this pint of time this lens microscope is a lot cheaper than dedicated microscopes with a comparable magnification which makes it ideal for home or school use in laboratories .\njust see the awesome video demonstrating the use of this micro lens right below.","domain":"optical_engineering"}
{"url":"http://www.accentlaser.com.au/","date":"2022-08-13T16:09:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571959.66/warc/CC-MAIN-20220813142020-20220813172020-00345.warc.gz","language_score":0.8923737406730652,"token_count":143,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__202498323","lang":"en","text":"Accent Laser Sydney is a laser marking company servicing a range of industries. We are capable of laser marking company logos, complex graphics, serial numbers and similar onto the surface of an array of items and materials including:-\n- Metals and Alloys\nThe latest technology in fibre optic and Yag laser machines offers a \"unique\" laser marking field of 1m x 1m accommodating your needs and providing the accuracy and quality the market demands. Laser marking produces high quality, permanent marks on a range of materials and in most cases superior to alternative processes such as screen printing, labelling, chemical etching and mechanical engraving.","domain":"optical_engineering"}
{"url":"http://www.import-export-offers.com/offer-details/98/46570/self-adhesive-pdlc-film-stickable-smart-pdlc-film/","date":"2019-09-17T13:07:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573071.65/warc/CC-MAIN-20190917121048-20190917143048-00375.warc.gz","language_score":0.9098665714263916,"token_count":148,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__137788418","lang":"en","text":"|PDLC film (polymer dispersed liquid crystal film) which is a kind of high-tech product can switch from transparent to opaque instantaneously under electricity application. It is transparent when power on and it is opaque when power off. It can be regulated and adjusted the light transmittance pass through the film by electricity supply.\nThe film is composed of PET film, ITO film, polymer and liquid crystal molecules. When the film is under off state, the randomly aligned liquid crystal molecules stay along on the walls of capsule, the reflection of liquid crystal molecules and polymer makes light disperses then it is opaque. While electricity supplied, these molecules arrange themselves in a specific direction then parallel light can pass through the film makes it transparent.","domain":"optical_engineering"}
{"url":"https://www.mysticsisterhood.net/t2847-uranian-moons-in-new-light","date":"2022-08-17T20:30:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573104.24/warc/CC-MAIN-20220817183340-20220817213340-00127.warc.gz","language_score":0.930050790309906,"token_count":162,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__19227271","lang":"en","text":"Credit: Ö. H. Detre et al./MPIA\nThese images explain how the Uranian moons were extracted from the data.\nLeft: The original image contains the infrared signals from Uranus and its five main moons, measured at a wavelength of 70 µm. Uranus is several thousand times brighter than a single moon. Its image is dominated by artifacts due to interference from the telescope and the camera. Titania and Oberon are barely visible.\nCenter: Using these data, a sophisticated procedure created a model for the brightness distribution of Uranus alone. This is subtracted from the original image.\nRight: Finally, the signals of the moons remain after the subtraction. At the location of Uranus the not quite perfect extraction method slightly affects the result.\nSource / Image Courtesy","domain":"optical_engineering"}
{"url":"https://www.kpec-ksu.org/keynote-speakers/georges-zissis","date":"2021-01-28T08:19:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704839214.97/warc/CC-MAIN-20210128071759-20210128101759-00386.warc.gz","language_score":0.9410204291343689,"token_count":664,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__129271244","lang":"en","text":"Georges Zissis, PhD, SMIEEE, President IEEE Industrial Application Society for the period 2019-20. Born in Athens in 1964, has graduated in 1986 from Physics department of University of Crete in general physics. He got his MSc and PhD in Plasma Science in 1987 and 1990 from Toulouse 3 University (France). He is today full Professor in Toulouse 3 University (France). His primary area of work is in the field of Light Sources Science and Technology. He is especially interested in the physics of electrical discharges used as light sources; system and metrology issues for solid-state lighting systems; normalization and quality issues for light sources; impact of lighting to energy, environment, quality of life, health and security; interaction between light source and associated power supply; illumination and lighting. He is director of “Light & Matter” research group of LAPLACE that enrols 20 researchers. He won in December 2006 the 1st Award of the International Electrotechnical Committee (IEC) Centenary Challenge for his work on normalization for urban lighting systems (in conjunction with IEEE, IET and the Observer). In 2009, he won the Energy Globe Award for France and he got the Fresnel Medal from the French Illuminating Engineering Society. In 2011 has been awarded the title of Professor Honoris Causa of Saint Petersburg State University (Russian Federation) and he is President of the Power Electronics, Electronics, Optoelectronics and System section of the French National Council of Universities for the period 2014-19.\nKeynote Speech: Light Beyond Lighting, Frontiers in Lighting Technologies: The Human-centric Intelligent Lighting Challenge\nAbstract: Since the human race emerged it has been known that fire and heated objects emit light that can be used for lighting purposes; artificial lighting has been discovered. Since of 19th-century end, artificial lighting has been the subject of a continuous and fascinating evolution; 20th century scientists and development engineers worldwide created such a wide range of lighting solutions for every lighting application.\nToday, the importance and application of these “legacy” lighting technologies is decreasing. During the last decade, Solid-State Lighting (LEDs, O-LEDs, solid-state lasers) challenges conventional technologies. In particular, LED has turned into a game changer beating the conventional technologies in all aspects. It is therefore anticipated that in short term, all of electric lighting will be based on SSLs. Should SSL revolution proceed to the projected conclusion, replacing all legacy technologies, there will be a further major change in the lighting market.\nArtificial light production absorbs 15% of the world’s electricity annual production. Therefore, past century’s research and development focused on single energy efficacy enhancement. Consequently, we knowingly were not serving society as effectively as we could. Industry has coined a new term “human-centric lighting” to draw renewed attention to its primary effort to be successful in meeting society’s needs. Furthermore, we are witnessing a transition from the conventional “analogue” lighting technologies to “digital” lighting. Intelligent lighting will become the backbone for smart homes and smart cities. This way, lighting will become the heart of the “Internet of Things”.","domain":"optical_engineering"}
{"url":"http://www.pioncomm.net/fiber-optics-works/","date":"2018-02-26T03:08:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891817999.51/warc/CC-MAIN-20180226025358-20180226045358-00383.warc.gz","language_score":0.9089488387107849,"token_count":249,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__37673235","lang":"en","text":"Fiber optics, or optical fibers, have revolutionized the digital medial world. These cables are made using incredibly pure, long, thin strands of glass that are usually no bigger than the cross section of a human hair. When bundled together, these fiber optics can be used to efficiently transfer light signals across long distances.\nThe Anatomy of a Fiber Optic Cable\nOptical fibers are made up of the glass core, a cladding that surrounds the core and a buffer coating of plastic that keeps the fiber safe from moisture and damage. Hundreds or thousands of these fibers are bundled together in a jacket, the outer covering, to create just one optical cable.\nHow Optical Transmission of Data Works\nWhen your home internet is transmitting data on a fiber optic network, it is acting completely using light pulses. Light signals travel through the cable, bouncing off the cladding, which completely reflects the light through a principle known as total internal reflection.\nWhat Fiber Optics Means for You\nAt Pioneer Communications, we employ fiber optic technology that allows us to transmit up to 50 megabits per second on systems with potentially unlimited bandwidth. This directly translates to much faster upload and download speeds without the degradation seen by copper media when used over long distances.","domain":"optical_engineering"}
{"url":"http://www.kisc.meiji.ac.jp/~ryulab/activities.html","date":"2019-12-08T20:40:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540514893.41/warc/CC-MAIN-20191208202454-20191208230454-00471.warc.gz","language_score":0.8614858984947205,"token_count":305,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__180363904","lang":"en","text":"1. J. Kishi and S. Ryu, \"Study on angle diversity receiving system\nfor visible light communications,\" ACP2018, paper S4D.6, Hangzhou,\nChina, October 2018.\n2. H. Ando and S. Ryu, \"Simultaneous dual data stream transmission\nusing RGB and phosphor-based white LEDs,\" ACP2018, paper M3D.6, Hangzhou,\nChina, October 2018. 3. S. Ryu, \"(Invited talk) Application of angle diversity technique\nto optical wireless communication systems for smartphones,\" Interphotonics\n2018, Antalya, Turkey, October 2018.\n4. S. Ryu, \"Study on diversity receiving techniques in optical wireless\ncommunication systems,\" 2017 Conference on Lasers and Electro-Optics\nPacific Rim (CLEO-PR), P4-008, 2017.\n1. S. Ryu, T. Tsuboya, H. Murata, and D. Fukushima, \"Novel optical\ntime domain reflectometry with continuous time-domain measurement of backscattered\nlight,\" OECC/PSC 2019, paper WP4-C4, Fukuoka, Japan, July 2019.\n2. S. Nozawa and S. Ryu, \"Investigation of optical phase characteristics\nof Stokes and transmitted light in fiber Brillouin scattering,\" OFC2019,\npaper M4C.1, San Diego, CA, March 2019.","domain":"optical_engineering"}
{"url":"http://chemed.chem.purdue.edu/genchem/history/wedgwood.html","date":"2018-12-10T07:17:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823318.33/warc/CC-MAIN-20181210055518-20181210081018-00542.warc.gz","language_score":0.9380297660827637,"token_count":286,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__230796082","lang":"en","text":"Quantization of Energy (Thomas Wedgwood)\nIt is common knowledge that objects give off light when heated. Examples range from the gentle red glow of an electric burner on a stove to the bright white light emitted when the tungsten wire in a light bulb is heated by passing an electric current through the wire. What is less well known is a phenomenon discovered by Thomas Wedgwood in 1792. Wedgwood, whose father started the famous porcelain factory, noticed that many objects give off a red glow when heated to the same temperature. The bottom of a crucible and the iron triangle on which the crucible rests, for example, both glow red when heated with a bunsen burner.\nWedgwood also noticed that the color of the light emitted by an object changes as it is heated to higher temperatures until the object glows white hot, but the spectrum of light given off at a particular temperature is the same for any object. The fact that sunlight is equivalent to the light emitted by an object at 6000 K, for example, has led to the assumption that this is the temperature of the surface of the sun.\n|Wedgwood's observation that objects heated to the same temperature give off light of the same color can be illustrated by comparing the light given off by a crucible and the iron triangle on which it rests when the crucible is heated.|\n|History of Chemistry|","domain":"optical_engineering"}
{"url":"https://sites.middlebury.edu/filmsupport/equipment/video/video-cameras/sony-pxw-z90v/","date":"2023-06-08T14:18:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655027.51/warc/CC-MAIN-20230608135911-20230608165911-00120.warc.gz","language_score":0.7871295809745789,"token_count":261,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__22416287","lang":"en","text":"Completed Certification Workshop on Sony PXW-Z90V\nAesthetics of the Moving Image\nThe Sony PXW-Z90V 4K HDR XDCAM camcorder offers phase-detection autofocus (AF) and HDR capabilities in a compact, palm-style body. Suitable for corporate events, broadcast news, and television production, the PXW-Z90V camcorder features a stacked 1″ Exmor RS CMOS sensor with UHD 4K (3840 x 2160) resolution, a 12x Zeiss optical zoom, an OLED viewfinder, and 3.5″ touchscreen LCD monitor. It can record 4K in XAVC Long at 4:2:0 and HD in XAVC Long at 4:2:2 10-bit. S-Log3/S-Gamut3 functions offer users additional image control. Additional features include built-in 2.4/5 GHz for multiple streaming via RTMP/RTMPS protocols and FTP options.","domain":"optical_engineering"}
{"url":"http://www.b2businesshub.com/how-to-choose-a-thermal-imaging-camera.html","date":"2019-06-24T09:07:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999298.86/warc/CC-MAIN-20190624084256-20190624110256-00237.warc.gz","language_score":0.9489274621009827,"token_count":719,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__132846567","lang":"en","text":"Camera technology has come a long way in recent years, not least with the advent of digital technology. The smart phone you use every day most likely has a more than capable camera on it, and there are very impressive digital cameras available for surprisingly affordable prices.\nIn terms of security, this means that we have a better chance of covering our property – domestic or otherwise – with CCTV systems. These are very useful when it comes to capturing offenders. However, there is one other area of visual technology that has advanced a great deal lately, and that is in night-vision.\nPut simply, we as humans are not designed to be able to see in the dark. Our eyes are great at processing the information given to us in daylight, but by dark we simply struggle to compete with the animals that are built to come out at night.\nNight vision goggles and cameras go some way to rectifying this, but perhaps the most impressive aid to night vision is that of the thermal imaging camera. This very clever and widely used technology is utilised by security services, the military, and people who need to be out at night, for example those who enjoy hunting.\nWhat is thermal imaging, and what should you look for when buying a thermal imaging camera?\nHow It Works\nUnlike a night-vision camera, which uses enhanced optics to gather an image in subdued light, a thermal imaging camera focuses on the infra-red heat signal of everything in its range of vision. Put simply, every object – living or otherwise – emits a heat signal that is above zero degrees, and the camera can ‘see’ this.\nIt works by way of special lenses which focus on a set area; the lens picks up the heat signal and transmits it to a vast array of tiny processors within the camera. These then convert the heat signal into an image known as a thermogram, which is visible to the viewer as a series of shapes in different colours. Each colour – from blue to red – signifies a higher heat output, so living things will appear in shape, and brighter.\nYou may have seen these images on TV when watching documentaries about the police helicopters, for example, or in films where soldiers use them as night vision. This is very real technology, and it is readily available here and now, and you may be surprised how affordable a thermal imaging camera can be.\nWhat to Look For\nWhether you need a thermal imaging camera as part of your security system, or are planning on going hunting, you need to look for a few features that will make your choice the right one. Thermal Imagers can help you make the right choice.\nDetector Resolution – this can get confusing, so put simply, you need to buy the camera with the best detector resolution you can afford. That’s detector resolution as opposed to display resolution. This will give you the best images.\nAccuracy – one factor about thermal imagers is that they provide measurements of your results, so look for one that promises the greatest accuracy.\nFormats – if you are going to be recording data for output, make sure the camera you choose offers the standard formats; there’s no point having an expensive camera and then finding you need a load of new software to access it.\nThese are just a few of the things to look out for when buying a thermal imaging camera, and there may be many more that influence your decision, but the basic advice is quite simple: buy the best you can afford, and you can’t go far wrong.","domain":"optical_engineering"}
{"url":"https://beta.ascrs.org/clinical-education/cataract/2021/2021-film-76006-clinical-experience-with-a-new-generation-ophthalmic-surgical-microscope-for-en","date":"2024-02-21T22:27:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473558.16/warc/CC-MAIN-20240221202132-20240221232132-00250.warc.gz","language_score":0.7879591584205627,"token_count":134,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__125597422","lang":"en","text":"This content from the 2021 ASCRS Annual Meeting is only available to ASCRS members. To log in, click the teal \"Login\" button in the upper right-hand corner of this page.\nPresenting Author: Lawrence Woodard, MD\nProducers: Patricia Franco, MD\nCategory: Cataract/Implant Surgery\nA new nearly collimated beam microscope provides a bright, stable red reflex, plus enhanced depth of field for precise intraoperative visualization. We present anterior segment surgical cases demonstrating that this new microscope enhances the surgeon’s experience by providing better ocular surface illumination and improved contrast for intraocular visualization, versus a focused beam microscope.","domain":"optical_engineering"}
{"url":"http://www.christmaslights.com/christmas-lights/ledchristmaslightsarticle.cfm","date":"2013-05-25T02:12:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705318091/warc/CC-MAIN-20130516115518-00072-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9379642605781555,"token_count":260,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__202600558","lang":"en","text":"Light-emitting diodes, or LED Christmas lights, are becoming a popular alternative for holiday decorating for many reasons. To fully appreciate the benefits they offer, you first need to have a basic understanding of what makes them different than the other types of Christmas lights on the market.\nWhat Makes Them Different\nUnlike other outdoor Christmas lights, LED Christmas lights are made of a semiconductor device that creates the light. All multi-color LED Christmas lights produce monochromatic light, which means a specific light is emitted, regardless of the plastic encasing. This basically means that the colors created will remain vibrant, even after multiple uses.\nWhite LED Christmas lights use a slightly different process to generate the white color, which involves producing an ultraviolet light that is then exposed to a phosphor to create the color human eyes perceive as white.\nWhite LED Christmas lights can be used in conjunction with colored refractors and lenses to create colors. However, if they are used with colored refractors and lenses, much like most other mini Christmas lights, they are subject to some color fading because of the long-term exposure to heat.\nArmed with some basic knowledge, you may have begun to realize that there are several distinct advantages to using them. Here are just a few.","domain":"optical_engineering"}
{"url":"https://gigwarez.ru/alien-vision-exploring-the-electromagnetic-spectrum-with-ima/","date":"2020-06-06T16:35:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348517506.81/warc/CC-MAIN-20200606155701-20200606185701-00020.warc.gz","language_score":0.7789906859397888,"token_count":237,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__210987241","lang":"en","text":"Alien Vision Exploring the Electromagnetic Spectrum with Imaging Technology, Second Edition\nLogin /Register Please to see the link | 46.11 MB | English | Author :Richards, Austin A. | 978-0819485359 | 2011 | SPIE Press; 2nd Edition edition\nBook Description :\nAustin Richards takes readers on a visual tour of the electromagnetic spectrum beyond the range of human sight, using imaging technology as the means to \"see\" invisible light. Dozens of colorful images and clear, concise descriptions make this an intriguing, accessible technical book. Richards explains the light spectrum, including visible light, and describes the advanced imaging technologies that enable humans to synthesize our own version of \"alien\" vision at different wavelengths, with applications ranging from fire fighting and law enforcement to botany and medicine. The second edition expands existing content, explores recent areas of research, and provides new illustrations that demonstrate the variability of vision throughout the spectrum.\nCategory : | Science & Mathematics, Science & Math\nRapidgator | Nitroflare | Ddownload |Uploaded |\nThanks for downloading Alien Vision Exploring the Electromagnetic Spectrum with Imaging Technology, Second Edition :","domain":"optical_engineering"}
{"url":"http://paprika.graq.co.uk/3kfijc/fey80b.php?7e2363=budget-wide-angle-lens-for-nikon-fx","date":"2021-05-07T21:34:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988828.76/warc/CC-MAIN-20210507211141-20210508001141-00583.warc.gz","language_score":0.9360719323158264,"token_count":8202,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__218301953","lang":"en","text":"When you use slower shutter speeds, you get much more light hitting the sensor. A: Yes, the 24mm lens is good but not ideal for landscape photography. 1. This lens combines some of the features of the previous two lenses in terms of its range of zoom and its quality. If I try to take a photo at 24mm focal length with both a prime lens and a zoom lens at around the same price, there’s a good chance that the prime will take a better photo. First on our list is the granddaddy of wide angle prime lenses, and it is without a doubt the highest quality glass on this list. View on Amazon. Otherwise you have to use a very slow shutter speed, which can result in stars trailing in the photo as they move across the sky (though this can be desirable sometimes!). It has produced a stunning looking lens with premium quality components that are in accordance with today’s need. That means images will reveal themselves fairly close to what you imagined—that is, of course, if you know what you’re doing. For landscape photographers, the Nikkor 16-35mm f/4G ED VR is one of the best Nikon travel lenses that they can own. Depending on your subject, it can be harder to mix it up and get a lot of unique photos. Those who love to carry lightweight lenses should be aware of one thing that Tamron SP 15-30mm G2 is not that light so if you’re looking for something light then you should pick it wisely, but if weight’s not an issue for you then we’ll say it’s a reasonably priced lens that is sure to impress you with its performance. Nikon introduced this lens in 2007, and still, it’s one of the sharpest lenses out in the market in the category of 14mm. BUY NOW £369.00. This can be great for artistic effect, but bad if you’re photographing a bride on her wedding day. They work. This lens has a lot in common with the first one I listed, the Nikon AF FX NIKKOR 28mm f/2.8D Lens. Sigma has beautifully crafted this lens with 15 elements in 11 groups of optical design that delivers constant peripheral sharpness and brightness. While investing in a wide-angle lens, many photographers get confused that what lenses or focal lengths are ideal for their needs, so we hope this guide will resolve the confusion, and you will find it helpful in choosing the best wide-angle lens for Nikon FX. Just keep in mind the angle will be less wide on a DX than FX. 20mm is one of my favorite focal lengths for architecture, because it’s wide enough to capture a lot of the building and get a small amount of artistic distortion but narrow enough to capture detail. The Nikon AF-S DX 8-15mm Fisheye is a specialty lens that gives a unique wide-angle perspective with the fisheye lens. It was incredible in 2007 when it was released, and the images it makes are still jaw-dropping today. This is probably the most versatile lens on this list. The Nikon AF-P DX Nikkor 10-20mm f/4.5-5.6G VR is an inexpensive, light, compact and fantastic lens to use. Here I would say the wider the better so you can capture as much of the sky as possible. Ideally I'd grab a Nikon 24-70 2.8 but until I save up a little further that's outside of the budget. For aperture, though, the answer is a bit more clean-cut. The old-schoolers will also love a separate ring for the … But at this point in the list, we’re only really seeing lenses with overall excellent performance. While every lens on this list so far has been a prime lens, this one is a zoom. Best APS-C Wide-Angle Zoom Lenses for Nikon Sigma 18-35mm f/1.8 DC HSM Art The Sigma 18-35mm f/1.8 is easily one of the best wide-angle zooms on the market. CHECK PRICE ON AMAZON. Choosing the right wide angle lens for your needs and budget can be hard. Nikon AF-S DX 10-24mm f/3.5-4.5G ED Check the latest price on Amazon. This one is from Sigma Art series, designed for shooting in a variety of situations. When it comes to performance and quality, it surely beats Nikon’s 16-35mm f/4G ED VR and 18-35mm f/3.5-4.5G ED so if you’re looking for an all-in-one deal, then this thing is what you need to complete your camera gear. Sigma 18-300mm F3.5-6.3 DC Macro OS HSM Lens for Nikon. Cameras Gear is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by linking to Amazon.com and other Amazon websites. Nothing worse than ordering a new lens and finding it doesn’t fit your camera! I’m a travel photographer from Paris, France. Even in Canon’s full-frame bodies, pro photographers are using this lens with adapters as I say it’s not easy to leave this beast alone. However, It’s quite expensive at just over $1400. Sigma has built this lens while keeping professional photographers in mind, and it shows. Tamron VC; any; more Focus motor. Nikon has built it with solid premium material and sealed it well to ensure that the dust particles and moisture doesn’t harm the lens in any way. A: An ultra-wide angle lens with a focal length of 14mm or a wide-angle lens between 15mm to 30mm is the best. I’m amazed by some of the results you can get with this lens when you open it up wide, point it at the sky, and hit the shutter. Diagonal fisheye lenses correct for this so the distorted image takes up the whole frame. Such focal length is also much suitable for architectural photography. This is likely a lens for professional photographers. Buying this one incredibly high-quality lens saves you from having to buy a few different, cheaper lenses. It captures stunningly beautiful wide angle images. In low light conditions, one doesn’t have to worry as with f/1.8; this lens can easily handle difficult lightning conditions. Your email address will not be published. If you’re ready to make a serious investment in wide-angle photography, I think this is a truly excellent choice. This is a fairly heavy lens at 2.5 pounds, so if you’re traveling with this lens it’s unlikely you’ll want to carry around much else. Nikon’s 8-15mm is a uniquely designed piece of art for professionals who want to have a creative and distinctive look in their footage to show their artistic work. / 665 g. One main concern in people’s minds is that Sigma’s autofocus is a bit slower as compared to Nikon or Canon lenses, but after working with this lens on Nikon mount one can easily figure out that these are just bubbles and nothing else, but yes on Sony mirrorless cameras like a6500 or a6300, the autofocus is slightly slower like there will be a 1 to 2 seconds delay but on Nikon mount this lens absolutely works fine, it will not disappoint you at any level whether it’s about accuracy or speed. What Are Third Party (Nikon) Lenses? Of course, you get what you pay for. This is a nice compromise if you are interested in both extreme fisheye wide angle and more subtle wide angle effects. I would also make sure you get yourself a graduated neutral density filter (GND) so your skies don’t come out too bright and the land too dark. © 2020 CAMERAS GEAR | ALL RIGHTS RESERVED | AN ELITE REVIEWER AND PUBLISHER, Comparison Table: Best Wide Angle Lenses For Nikon FX, Here are some of the best wide angle lenses for Nikon FX, 6. This wide angle zoom lens goes between 14-24mm, making its range more similar to the Tamron. Nikon FX; more Price < $1,000 < $800 < $600 < $500 < $400 < $200; more Aperture < f/4 < f/2.8; more Wide angle < 35 mm < 24 mm < 18 mm ; more Telephoto > 100 mm > 200 mm > 300 mm > 600 mm ; more Image stabilization. A: Well, 35mm is a wide-angle lens but not really enough for landscape. On the other hand, zoom lenses work across a range of focal lengths, letting you greatly vary the types of photos you can take with just one lens. Try to use f/8 or higher number like f/12 – f/16, but if you’re doing night photography, then you need lower f stop number as capturing landscapes in the night time is not possible without low light aperture setting. It even does fairly well with low light astrophotography! The cheapest wide angle lenses I can find for F mount for FX are the following - prices are all b+h: Rokinon 14mm -$320 - Samyang is about the same Tokina 16-28mm 2.8 - $560 Venus 15mm f4 Macro $480 - yes, that's serious, a 15mm FX macro lens Truth be told, that will work for most situations. At a 24mm focal length, it’s in the middle as far as extreme verses subtle wide angle, but what really sets this lens apart is its powerful f/1.4 aperture. Nikon 14-24mm f2.8G; Sigma 24mm f/1.4 DG HSM Art Lens; Tamron SP 15-30mm f/2.8 Di VC USD G2; Nikon AF-S 16-35mm f/4G ED VR Lens Another thing is that one doesn’t have to worry much about lightning issues as this Art boy will manage this thing for you. That’s not true of some of the more extreme lenses later on this list, which you would not want to use to photograph people. From 24mm and wider, we’re entering ultra-wide angle lens territory. This does come at a slight cost of quality, however. Like the 35mm f/1.8 discussed above, this lens is small, lightweight, and offers you excellent performance and value. With its sharp photos, superb autofocusing capability, wide aperture, and wider focal length, it’s undoubtedly one of the best lenses for Nikon D3500. At under $300, it’s a great bargain, producing clear, sharp images for the price point. With this Rokinon 14mm f/2.8, you can capture a bigger part of the scene in one photo thanks to the ultra-wide angle of view. Sigma has enhanced it with its super multi-layer coating that minimizes flare and ghosting and provides well-saturated contrast images in a variety of lightning conditions. It’s a fisheye and also a lens designed specifically for zooming by Nikon, providing a focal length between 8mm to 15mm with 1.9x super wide-angle zoom. An advantage which you will get by using a fisheye lens instead of a super wide-angle lens is that the object on the edge of the frame doesn’t stretch out. In fact, we’re headed to the part of the list where we’ll see some more expensive lenses overall. This can be excellent if you do a lot of fieldwork or if you’re traveling and don’t want to be weighed down with a bunch of different prime lenses. And while there are a lot of brands out there, Nikon NIKKOR makes the most and the best lenses for full frame Nikon cameras. A wide angle lens an essential tool for a photographer. There are benefits to both types of lenses. Here’s some advice by category: One thing I really like when capturing photos of architecture with wide angle lenses is combining details from the buildings with broad, sometimes distorted views of the shape of the buildings. Here are some of the best wide angle lenses for Nikon DX 1. But that’s worth checking for your camera if autofocus is important to you. A good aperture will always help you take better photos, no matter what the lighting. It’s a perfect lens for shooting handheld as the VC stabilization system will handle camera movements and jerks, so you don’t need to worry about spending money on expensive fluid head tripods, etc. What experiences have you had with wide angle lenses? I think this is a lot of fun, and a better way to take a lot of cool pictures than just sitting in one spot adjusting the zoom. But if you can get your hands on one (there’s always shopping used! This is why really good zoom lenses can be really expensive. The VC (Vibration Compensation) stabilization system will provide up to 4.5 stops of camera movements with the help of dual dedicated MPUs (Micro-Processing Unit) in this lens; one is for quick and precise Ultrasonic Silent Drive Auto Focus and the other one for VC – Image stabilization with responsive performance. It delivers highly sharp image quality while managing to give good contrast too, and with a weather-sealed moisture-resistant construction, one can shoot in various atmospheres. Next on our list is this simple 28mm lens. But more money pays for more quality. It lacks image stabilization, but if it’s not a big deal for you, then you should consider taking this Sigma art series lens for your camera gear. Getting both isn’t really necessary. Tamron’s updated version G2 is an excellent choice to carry on. When it comes to 24mm focal length wide-angle lenses, there are two choices that come instantly into mind, one is Nikon’s 24mm f/1.4G that is double the price, and the other is Sigma’s 24mm f/1.4 DG HSM Art Lens. It’s a legend, and for good reason. It’s an ideal lens for indoor shoots, landscapes, wedding photography, cinematography, astrophotography, etc. It’s all a balance of your needs verses what you’re able to spend. But there is one major difference: the aperture. You tend to find a lot more variety in brands and price points if you shop for lenses for a DX (crop frame) cameras. ), but much higher and you may not capture the full scope of the scene. Frequently Asked Questions (FAQs): About Wide Angle Lenses For Nikon Q: What is the best wide-angle lens for Nikon? When it comes to image quality, it provides excellent color contrast and center sharpness across the focal ranges, but at the long ends it may drop a little bit sharpness, the best focal range to be used on this lens is around 20mm as there it will deliver absolutely stunning quality. One factor to consider, however, is that it’s difficult to make zoom lenses that have the same image quality at a given focal length than its corresponding prime. It’s a powerful lens for landscapes, architecture, and night sky. Nikon AF NIKKOR 24mm f/2.8D Lens $391.95 One fun thing to try with a wide angle lens is using it with a tripod and longer exposures for astrophotography. Your email address will not be published. That isn’t as much about the lens, but still important! But something to keep in mind is that better apertures will always dramatically increase the price, so that’s not really a fault of this lens. Some might think that dates just back to the 17-35mm f/2.8, but no, it goes much further back than that. The auto-focus is quite quick and accurate when it comes to interiors, landscapes, or street photography; this lens will do a great job in such situations. Is the Tokina 19-35 lens the cheapest AF Wide Lens for Nikon Full Frame (Nikon FX/FF) cameras?? Tamron introduced the older version back in 2014 with image stabilization and constant aperture, and that time it became well known as one of the sharpest lenses out there in market even better than Canon and Nikon lenses in sharpness and now we got an updated G2 version of the same lens but with new technology and improved quality. I think the best focal length for this type of photography is around 20-24mm. This is where this lens truly shines. The focal length is the number with the mm attached to it. You can use it to shoot wide scenes, or intimate portraits. This lens is capable of providing excellent center sharpness throughout all the zoom ranges. Nikon’s 16-35mm is also thinner, shorter and light weighing lens than Nikon’s 14-24mm and other competitors in this category. However, the downside to prime lenses is you can get a lot of similar compositions with the same focal length. Definitely stick to landscapes, architecture, and even wildlife. An ultra-wide-angle lens with various focal lengths and that too without getting fisheye lens effect is a need of the majority of professional photographers as zoom designed wide-angle lenses do a great job when we can’t get close or move back from our subject. If you’ve tried any of these, how have they worked for you? Sigma’s 24mm f/1.4 Art lens has been enhanced with premium three FLD and four SLD glass elements that minimize aberrations and distortion issues, which is one of the common issues with almost all the wide-angle lenses. And unless you’re only shooting in the middle of the night, f/2.8 aperture should be just fine. Some key differences are that this lens is compatible with autofocus, so it is the clear winner if autofocus is important to you. This is great for exciting and dramatic views, but not so great for portraits, because fisheye lenses tend to distort things. Nikon AF-S Fisheye Nikkor 8-15mm f/3.5-4.5E ED, The 5 Best DSLR Gimbals In 2020 (NEW Guide), The 7 Best Wide Angle Lenses For Nikon DX In 2020 (NEW Guide), Best Lenses For Canon Rebel T6 In 2020 – Top 7 Picks, The 7 Best Lenses For Sony a6500 In 2020 (Editor’s Pick), Best Nikon Lens For Landscape Photography – Top 9 Picks. People who are into photography or cinematography as a hobby or profession know better what wide-angle lens is and what purpose it is used for. A: Never use a lower f stop while shooting landscapes because, in landscape photography, one always wants more scene to be in focus in the frame. Your email address will not be published. Sigma has designed this lens with an electromagnetic aperture mechanism which helps to provide greater exposure control while working at fast continuous shooting rates. Nikon AF-S FX. The AF-S 8 – 15 mm lens offers two wide-angle settings, the 8 mm circular or the 15 mm fisheye. Still a reasonable price for a good fisheye lens, though! The price point on this lens is about the same as the previous one. I do own a Nikon 12-24/2.8, but I also own and love the sigma 12-24 f4.5-5.6 . This is the lens that put Nikon on the map for wide-angle landscape photography. This lens can also be used with Nikon DX cameras, with such a good reasonable price tag one should keep this lens in their camera kit. There is a handy compatibility checker tool available on the Amazon listing page for this lens. We’ve explained all you need to know about wide-angle lenses for Nikon in detail, and we’ve given answers to various queries that people ask while buying a new wide-angle lens. I hope this guide will help you pick your first wide angle lens for a nikon FX mount full frame camera, and maybe you even learned something about lenses in general for your future shopping. It’s not an everyday lens, but if you’re looking for something creative, more ultra-wide which can create a dramatic and unique looking effect in the footage, then this fisheye lens is just the right one for you. It is good for a variety of situations where one need to have the facility of zooming in and out without losing the image quality and sharpness. With the upgrade, I need some new FX lenses; I already have a 50 1.8 and a 300 f/4 so I'm just after a nice wide angle. A good wide angle lens can add drama and range to your photography. So, there you can use the advantage of zooming in and out to get your desired shot. In fact, some might argue it’s not a true wide angle lens at all, but I still count it because it can go all the way down to 24mm, which is definitely a wide focal length. Tamron’s SP 15-30mm f/2.8 updated G2 version is a good combo for both photographers and especially for those who are into videography and cinematography too. It’s a beautifully crafted lens that does wonders in various photographic conditions. This refers to how far the camera opens to let light in when you hit the shutter. Wide angle photography is wonderful and exciting, but I know it can also be confusing. Nikon D700 + Nikon 16-35mm f/2.8 | by SpaceX On a full frame camera, a wide angle lens is considered any focal length equal to or wider than 35mm. Tamron USD; generic; Tamron PZD; … Third-party lenses, ones that … A: It’s a perfect lens for people who travel a lot; you can take really good pictures of cityscapes, landscapes, and a large group of people in one frame with a 10-20mm lens. F/2.8 will work alright for astrophotography, but for the best results you really need a wider aperture to let in more light. It might seem like a small detail on paper, but this makes a great deal of difference in the performance quality of the lenses. This isn’t very important since the camera settings can do that for you on modern cameras. Any ultrawide 14mm lens or Tamron’s 15 to 30mm wide-angle lens will be more suitable for capturing landscapes. This puts it somewhere between the 28mm lenses, which are still good for average subjects like portraits, and the more extreme fisheye lenses like the Rokinon and the Sigma, which are best for cool artistic shots. So, without any further due lets get started with Nikon wide angle lens reviews. These are the features to look for when you shop for lenses. CHECK PRICE ON AMAZON . These lenses are an ideal choice for photographing landscapes and interiors as well. Tamron 15-30mm f/2.8 One of my favorite wide angle lenses I’ve used is the Tamron 15-30mm f/2.8. When it was first launched, this Tamron lens set a new 2.4x zoom range record for a super-wide-angle lens. The following Full frame Nikon DSLR cameras are directly compatible with FX lenses (source: Nikon USA). The first, less expensive lens has an f/2.8 aperture, and this one has an f/1.8. This lens is optimized for edge-to-edge sharpness and enhanced with ED (Extra-low Dispersion) Magic glass to get sharper images and better light transmission. This might be a shortcoming for you if you are a new photographer and are used to using zoomable lenses, but prime lenses tend to be better quality than zoomable lenses. So, here we have made a list of the best wide angle lens for Nikon FX DSLRs, such as Nikon D850, Nikon D5, Nikon D750 and many more. This would be a good time to experiment with some of those extreme fish-eye lenses. The difference between a 12mm lens as compared to 14mm focal length doesn’t seem a huge difference, right? And happy shooting! This isn’t always considered a good wide angle subject, but you can take very good portraits with wide angle lenses if you are smart about your composition and choose the right lens. Much lower and you get a highly distorted fisheye effect that can obscure the building (though this can be fun as well if used carefully! Sometimes fisheye photos have a dark ring around the outside, because the distortion is so extreme that the picture frame is a circle instead of a rectangle. As far as focusing, it can autofocus, but only if your camera has its own autofocus motor, which many newer cameras do. The idea around focal length is that the smaller your focal length is, the more of a scene you can capture, whereas larger focal lengths allow you to zoom in and capture closeups of your subject. Nothing in photography is free, so something to consider is that this lens is about $200 more expensive than the Rokinon. A: A lens with a focal length of 35mm or wider is considered to be a wide-angle lens, but lenses with a focal length around 24mm or wider like 14mm, 12mm, 10mm, etc., are to be considered as ultra-wide-angle lenses. In general, the more jobs a single lens has, the more it might struggle to do them. They have so much in common that I would choose to buy only one of them, depending on what focal length best fits your work. This guide is specifically about FX (full frame) wide lenses. With the 8 mm circular, you get a 180-degree viewing angle, and that can produce some incredible circular landscape photos. A: The following lenses are one of the best performing wide-angle lenses for Nikon FX-format cameras. The overall quality of the images is exquisite for a zoom lens. That better aperture comes at a price. With this lens I want to introduce you to a new type of wide angle lens: the zoom wide angle. Since you can’t zoom in close to your subject with a wide angle lens, you can capture far more of a scene than you could with a non-wide angle lens. Q: What is the best size for a wide-angle lens? Like the other Nikon’s expensive lenses, the 20mm is also enhanced with Nanocrystal coating to get rid of flare and ghosting issues. CHECK PRICE ON AMAZON. Don’t forget, focal length is just a category for lenses. This Rokinon 12mm lens has a link you can click to check your camera, and is compatible with most Nikon DSLRs, including DX mounts, which is nice if you have more than one camera body and like to switch lenses between them. The zoom feature of this lens will give you a 10mm difference, and if you are a pro you would know that even a 10mm difference makes a huge impact especially when it comes to architecture photography or when you are stuck at a point where space is not that spacious and moving back is also not an option. I would definitely call this one an entry-level wide angle lens, which could be a great choice for you if you’re just starting out with wide angle photography and aren’t sure about committing to an expensive lens. So here comes a deal for those who love to shoot handheld, in low light conditions and need something solid with image stabilization, constant wide aperture, and optical excellence. Even on maximum aperture at f1.4, this lens reduces flare and ghosting for higher contrast and color fidelity all thanks to Sigma’s super multi-coating to the lens elements too. Where we’ll be reviewing each and every single model of the wide angle lens that we’ve mentioned in this guide. This is why prime lenses are considered the best, most high quality lenses, and also why high quality zoom lenses tend to be much more expensive. The other letters and numbers refer to specific qualities of the lens and differ by brand. Nikon AF-S FX Nikkor 50mm f/1.8G . This means this is a perfect lens to try some astrophotography! This lens is targeted for the professionals out there. And this is one case where aperture definitely matters. When it comes to image quality, the new optical lens technology is not going to disappoint you. The one negative point in this lens is its weight that is around 2.42 lb / 1100 g so if it’s heavy for you then you should skip this option but the image quality and stabilized footage in such a reasonable price is worth the while. This depends on the type of photographer you are! Like 0. 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A: the aperture this beast it is the number with the 8 mm circular or 15... More lens mounts to pick up used ; this gives a really natural to. The constant f2.8 aperture will always help you take better photos, no matter the... T forget, focal length lenses are wide angle drama and range to your photography lightning conditions acceptable... In millimeters and refers to the presence or absence of a manual setting. Charging a higher price tag for it till today s Silent wave motor for smooth, fast accurate. Has intensely taken over the market of Canon and Nikon ’ s all a of. Best performing wide-angle lenses of the lens is capable of capturing the same, so if ’! Lenses ever made by Nikon with an f/ before it not be bit... 2.8 but until I save up a little further that 's outside of best!\nGibson Sg Bolt-on Neck, Ryobi Trimmer 40v, 20% Vitamin C Serum, Architecture Essay Writing, Jaguar Logo History, How To Check Shutter Count On Nikon D5300, Apple Earpods Currys, Alfred Camera Ios, Hunter Exeter 54\" Led Ceiling Fan, Printable Apartment Checklist Pdf,","domain":"optical_engineering"}
{"url":"http://www.weldingprotection.com/product/antra-ah6-330-0000-digital-controlled-solar-power-auto-darkening-welding-helmet-with-antfi-x30-shade-5-89-13-with-grinding-feature-extra-lens-covers-good-for-tig-mig-mma-plasma/","date":"2019-01-22T19:51:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583867214.54/warc/CC-MAIN-20190122182019-20190122204019-00414.warc.gz","language_score":0.6739475727081299,"token_count":621,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__180212062","lang":"en","text":"Antra AH6-330 Series welding helmet is featured with the digital controlled 4 sensor auto darkening lens, which is extremely fast responsive to electric arc from TIG, MIG, MMA or Plasma applications. Large LED Shade display eliminate guess work, the lens stays on the shade you see! This light weight welding helmet is so versatile that it can be used on grinding, cutting and welding applications. It is a perfect upgrade for goggles and fixed shade glass welding helmet, or regular control auto helmets at a fraction of cost.\n– Fully automatic power ON/OFF.\n– Digital controlled sensitivity and delay setting with LED display\n– UV/IR Protection: Permanent Shade DIN13\n– Hard hat adapter (Sold separately)\n– Power off delay 30 minutes, the filter keeps alive for 30 minutes in dark environment before it goes to sleep.\n– Viewing Area: 98 x 53 mm /3.86″ x 2.09″\n– Cartridge Size: 110mm x 90mm x 9mm / 4.33″ x 3.54″ x 0.35″\n– Optical Class: 1/1/1/2\n– Reaction Time: 0.00004(1/25,000) Seconds\n– Dark to Light: 0.1，0.25，0.4，0.55，0.7 Seconds\n– Light State: Shade DIN 4\n– Dark State: Shade DIN 5-8/9-13\n– DC TIG Amperage Rating: >2 Amps\n– Battery Type: Solar Cell + 2X CR2032 (Replaceable)\n– Helmet Material: High Impact Polyamide Nylon\n– Operating Temperature: -10°C- 55°C (14°F-131°F)\n– Storage Temperature: -10°C- 55°C (14°F-131°F)\n– Meet Standards: ANSI Z87.1 / EN379 CE / CSA Z94.3\n– Weight: 447g/15.8oz\n– Exterior lens covers:ASIN# B00CIOKN6C\n– Inner lens covers: ASIN# B00CIX07IW\n– Head Gear: ASIN# B01M365MTP (New Version) ASIN# B00IAGN35K (Old version)\n– Hard hat adapter: ASIN# B075FCZJZH, B075FH4J4C\n– Cheater Lens: ASIN# B017IDJKMK (Diopter various)\n*Note: Head gear may require simple assembly.\nGreat For TIG MIG MMA Plasma applications with grinding feature\nLarge digital LED shade display, bright Sensitivity, Delay setting, easy to see even in dark environments\nEasy accurate shade setting with digital control, NO MORE guess work\nCheater lens / magnifying lens compatible design\nLarge viewing size 3.86″X2.09″ with 4 premium sensors","domain":"optical_engineering"}
{"url":"http://ph.bosch-automotive.com/en/parts_and_accessories_ph_1/electrical_system_and_accessories_10/lighting_technology_18/headlamps_9/night_vision_8/night_vision_9","date":"2017-04-27T07:10:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121893.62/warc/CC-MAIN-20170423031201-00266-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.92205411195755,"token_count":107,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__99169882","lang":"en","text":"Night Vision: For a perfect view even in the dark\nBetter vision at night without dazzling oncoming traffic? The perfect answer: Night Vision from Bosch. The night vision unit of high beam standard provides drivers with a sharp, realistic view of the road situation. Thanks to its active infrared technology, the integrated combi unit also ensures early detection of easily overlooked obstacles such as shed loads or pedestrians in dark clothing.\nNight Vision enables drivers to see the course of the road, other road users and obstacles up to 150 meters away.","domain":"optical_engineering"}
{"url":"https://tryboxedup.com/store/product/BoxedUp2492?location_id=b5848452-274c-4e7e-b5ed-69f53160455b&offer_id=997275ad-a33a-45b1-accd-5a335865c226","date":"2023-03-22T00:30:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943747.51/warc/CC-MAIN-20230321225117-20230322015117-00195.warc.gz","language_score":0.9150936603546143,"token_count":377,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__79757886","lang":"en","text":"Ideal for portraiture, the EF 135mm f/2L USM is a medium telephoto prime and a member of Canon's L-series of lenses. The long focal length coupled with the f/2 maximum aperture afford a great deal of control over depth of field for isolating subject matter and using selective focus, and the bright aperture also benefits shooting handheld in low-light conditions. In regard to the optical design, the lens uses two ultra-low dispersion elements to control chromatic aberrations and color fringing for high clarity, and a Super Spectra coating has also been applied to suppress flare and ghosting for increased contrast and color accuracy. Complementing the imaging attributes, a ring-type USM is employed to deliver quick and quiet autofocus performance along with full-time manual focus control.\nManufacturer Part #\nThis product's included items has not been updated.\nNo one has reviewed this product yet. Reviews are coming soon!\nBefore you book, make sure you're comfortable with BoxedUp's cancellation policy.\nCancellations up to 72 hrs prior to rental date, or before order confirmation.\nGet back 100% of what you paid.\nAfter your order has been confirmed or if your rental start date is within 72 hours.\nThis rental is non-refundable.\nUnexpected things do occur, so if for some reason you need to cancel an order within the start date window or after your order has been confirmed by the Supplier, please contact firstname.lastname@example.org to request a cancellation.","domain":"optical_engineering"}
{"url":"http://cog.yonsei.ac.kr/pages/Cog_Research_07_EYEHAND.htm","date":"2022-12-04T11:09:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710972.37/warc/CC-MAIN-20221204104311-20221204134311-00233.warc.gz","language_score":0.9032011032104492,"token_count":223,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__193143319","lang":"en","text":"- Vision Tracking\nWHAT IS VISION TRACKING?\nAn area of computer vision is active vision, sometimes also called active computer vision. An active vision system is one that can manipulate the viewpoint of the camera(s) in order to investigate the environment and get better information from it.\nThe purpose of this project is to track the specific color or object so that the camera adjusts its orientation on that object.\nTo begin with, the hardware consists of two servomotors. These two servomaotors are intended to rotate the webcam vertically and horizontally.\nThe system consist of three parts: servo motor with camera, servomotor controller and computer.\nThe camera can detect the center of a object. When we set the color as 'blue', the vision detects a series of blue color, and calcurates the center of the blue object. If the position of object center is not on the center of the screen, the computer order the servomotors adjust it's position until the object center correspond with the center of the screen.","domain":"optical_engineering"}
{"url":"http://midcan.com/gear/fujinon-17x7-6-b4-mount-hd-zoom-lens/","date":"2019-08-26T01:47:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027330913.72/warc/CC-MAIN-20190826000512-20190826022512-00029.warc.gz","language_score":0.9254840016365051,"token_count":204,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__117300051","lang":"en","text":"Fujinon 17×7.6 B4 Mount HD Zoom Lens\n- 175 / Day\n- Multi-day Discount Available\nIncluded in rental:\n- Fujinon 17×7.6 B4 Mount HD Zoom Lens\n- Built-in 2x extender\n- Lens hood, end cap\nA standard zoom range for ⅔” cameras, this is a workhorse lens for ENG/EFP shoots. One difference with this particular lens is that in addition to zoom and iris, the focus is motorized and can be operated remotely with the proper controller. Of course all 3 motors are easily disengaged for manual control. As with most B4 lenses, the safety glass is mounted in the hood. There’s a dial to easily adjust zoom speed. As with all our B4 lenses (except our cinema line), it includes a 2x Extender that can be snapped in and out to quickly double the focal length at the loss of a stop of light.","domain":"optical_engineering"}
{"url":"https://ml4q.de/2022/03/26/inter-site-collaboration-demonstrates-wavelength-conversion-of-single-photons-emitted-by-semiconductor-quantum-dots/","date":"2023-09-24T03:58:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506559.11/warc/CC-MAIN-20230924023050-20230924053050-00157.warc.gz","language_score":0.8456352353096008,"token_count":272,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__255649967","lang":"en","text":"Inter-site collaboration demonstrates wavelength conversion of single photons emitted by semiconductor quantum dots\nML4Q researchers from Bonn and Jülich have published recent results in Optics Letters on wavelength conversion at the single-photon level – a process required to forge a quantum network from distinct quantum devices. Such devices include solid-state emitters of single or entangled photons, as well as network nodes based on atoms or ions.\nIn this study, the authors demonstrate the conversion of single photons emitted from a semiconductor quantum dot at 853 nm via sum frequency conversion to the wavelength of the strong transition of Yb+ ions at 370 nm. They also show that the single-photon character of the quantum dot emission is preserved during the conversion process.\nPublication: Anica Hamer, David Fricker, Marcel Hohn, Paola Atkinson, Mihail Lepsa, Stefan Linden, Frank Vewinger, Beata Kardynal, and Simon Stellmer, “Converting single photons from an InAs/GaAs quantum dot into the ultraviolet: preservation of second-order correlations,” Opt. Lett. 47, 1778-1781 (2022)","domain":"optical_engineering"}
{"url":"http://www.easypano.com/forum/22/843.html","date":"2018-07-17T17:36:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589757.30/warc/CC-MAIN-20180717164437-20180717184437-00355.warc.gz","language_score":0.9428287744522095,"token_count":228,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__33691127","lang":"en","text":"Before I bought the lens I asked this same question to Coastal Optical to make sure my assumptions were correct and I wasn't wasting my money!\nI have a Nikon D70 and am considering purchasing your Coastal Optical\nDigital SLR fisheye lens.\nIs this suitable and are there any issues regarding compatibility?\nAlso, does this produce a full circular fisheye image on this camera, or\nis it cropped ?\nMany thanks in advance\nand their response:\nThe lens was designed for the Nikon digital format; there are no\nIt produces a circular image that is completely contained by the digital\nchip (no cropping).\nI received my lens today and can confirm that it produces full circular images with a 185° FOV.\nIPIX also sell this lens as part of a high end digital SLR kit, but god knows the cost.\nHere are some image samples somebody has posted using a Canon 300D which has an even higher multiplier than the D70 if I recall correctly.\nIf anyone is really interested I will post an image straight out of a D70 at some point.","domain":"optical_engineering"}
{"url":"http://predatorhaven.blogspot.com/2009/11/luminescence.html","date":"2017-04-28T04:21:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122739.53/warc/CC-MAIN-20170423031202-00282-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9303218126296997,"token_count":270,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__196524848","lang":"en","text":"of our five senses, sight is perhaps most used by humans in interpreting information from our surroundings, with a significant portion of the brain's cerebral cortex devoted to processing signals from our eyes. we tend to think of light as being emitted from incandescent, high-temperature sources, e.g. the sun, a light bulb filament, or burning fuel. yet there is a form of light, luminescence, which has its origin in low-temperature sources. some forms of luminescence are familiar to us, others not so much. for instance --\nbioluminescence is light from living organisms, produced chemically. fireflies, glowworms, and oceanic plankton are familiar sources. it is a specialized form of chemiluminescence.\nchemiluminescense is the emission of light as the result of a chemical reaction. examples: lab analysis of organic and inorganic substances, illuminated watch dials, and spatial lighting or safety lighting (glowsticks).\nphotoluminescence occurs when a substance absorbs, and then re-radiates, electromagnetic radiation. applications include highly reflective safety clothing and signs.\nsonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound.\nand so on. now you know.","domain":"optical_engineering"}
{"url":"https://cuvet.co/qr227-%CF%8612-5x1mm-round-quartz-glass-polished-disc-s-uv-fused-quartz-glass-185-2500-nm-10pc-ea/","date":"2023-03-21T05:20:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943625.81/warc/CC-MAIN-20230321033306-20230321063306-00576.warc.gz","language_score":0.660273551940918,"token_count":201,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__92511803","lang":"en","text":"QR227, φ12.5x1mm, Round, Quartz Glass Polished Disc, S-UV Fused Quartz Glass 185 – 2500 nm, 10pc/ea\nQR211, φ10×0.5mm, Ultra Thin, Round, Quartz Glass Polished Disc, S-UV Fused Quartz Glass 185 – 2500 nm, 10pc/ea\nThis quartz sheet comes in a package of 10 pcs for each quantity.\n- Customizable Quartz Disc Sizes\n- High-Temperature Stability (1100-1450°C)\n- >90% Transmission from 185nm to 2500nm Wavelength Range\n- 99.99% SiO2 Purity\n- Additional information\n- Reviews (0)\n|Image Place Holder|\n|Dimensions||13 × 13 × 20 cm|\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"http://rumahkamera.com/products/lenscope-mounting-for-nikon-canon/","date":"2019-05-20T21:44:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256147.15/warc/CC-MAIN-20190520202108-20190520224108-00020.warc.gz","language_score":0.8273328542709351,"token_count":331,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__29593695","lang":"en","text":"LENSCOPE MOUNTING FOR NIKON / CANON\n- 100% new\n- tersedia for nikon – canon\nThis innovative product is a great addition to your SLR camera collection. Weighting only 185g, Lens2scope unleashes the power of your camera lenses and turns them into powerful spotting scopes in a click.\nWith advanced ED, APO glass and aspherical elements used in modern camera lenses, you can take full advantage of the high quality optics and enjoy pin-sharp observation with Lens2scope. Having a quality spotting scope and camera lens in your camera bag without all the extra weight is now possible.\nWhen attached to your camera lens, the spotting scope magnification becomes the focal length divided by 10. For example, when attached to a 70-300mm tele-zoom lens, the combination creates a 7-30X zoom spotting scope. Macro lenses can also be used: With a 1:1 magnification macro lens, it becomes a 25X loupe with a right-erected image.\nFeatures / Tech Spec:\nLens construction: 5 elements in 3 groups with Roof Prism system\nApparent field of view: 42 degrees\nEye relief: 20mm with foldable eyecup for glass wear observation.\nSpotting scope magnification ratio: 1/10X the focal length of the lens mounted.\nLoupe magnification ratio: 25X when the lens mounted has 1:1 macro ratio.\nDimensions: 18cm (L) x 8cm (W) x 11cm (D)\nRp. 1.5jt saja","domain":"optical_engineering"}
{"url":"http://bridgelux.com/about/products.html","date":"2013-05-20T12:31:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698958430/warc/CC-MAIN-20130516100918-00040-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9097834825515747,"token_count":641,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__69073496","lang":"en","text":"Leading-edge LED Technology\nBridgelux is one of only three vertically integrated LED manufacturers in the United States. The Company progressively and actively invests in and develops new epitaxial processes, and these epitaxial technology advancements set Bridgelux’s high power LED Arrays and chips apart from others on the market. In addition, the Company’s investment in chip design technology has enabled Bridgelux to introduce new LED chips approximately every six months, with performance improvements in the range of 15 to 20 percent per introduction.\nBridgelux has a world-class team whose expertise in InGaN epitaxial growth processes, device structures, chip designs and LED packaging has enabled the Company to become a leader in the high power LED industry. The Company’s commitment to advanced R&D has yielded proprietary epitaxial technology and manufacturing processes, which together, create the high-quality foundation for its leading-edge LED Arrays and LED chips to deliver the right quality and quantity of light for solid-state lighting (SSL) applications.\nTo protect the Company’s technology advancements, Bridgelux is aggressively adding to its intellectual property (IP) portfolio, which includes approximately 100 patent applications filed or granted in the United States and 200 patent applications filed or granted worldwide.\nIntegrated Light Source Solution – LED Arrays\nThe family of Bridgelux LED Arrays has been developed with the end application in mind. Instead of following a component driven strategy, Bridgelux has defined product specifications targeted at the end system requirements for general lighting applications. These products have been optimized to deliver the performance necessary to displace high volume conventional light sources, while providing high quality uniform illumination, all with a focus on reducing the cost of light.\nBridgelux’s LED Arrays leverage the Company’s proprietary Metal Bond Technology (MBT), which reduces both thermal resistance and cost. This packaging technique has demonstrated a reduction in thermal resistance by 30-50 percent, as compared to LED solutions available on the market today. Bridgelux’s Metal Bond Technology eliminates redundant packaging steps and components, thereby reducing design complexity and manufacturing cost—which, in turn, accelerates time-to-market. Furthermore, lower thermal resistance is beneficial to the lighting system by increasing light output and reducing heat sinking requirements.\nAdvanced LED Chip Design\nBridgelux designs its own state-of-the-art, high power chips offering high light-extraction efficiency, good heat dissipation and excellent reliability. Bridgelux focuses on meeting these technical requirements, while minimizing cost and enabling high lumen per watt per dollar solutions.\nReactors & Epitaxy\nBridgelux has designed its own proprietary MOCVD reactors to grow the highest quality InGaN material. These custom reactors and proprietary epitaxial manufacturing processes are developed to continuously improve internal and external quantum efficiency of LED materials, thereby enhancing the quality, efficiency and cost-effectiveness of Bridgelux’s LED devices. This MOCVD capability is unique in the LED industry and sets Bridgelux apart from others in the SSL market.","domain":"optical_engineering"}
{"url":"https://netconsums.com/digital/1000x-usb-digital-microscope-0mu88l/","date":"2021-10-18T07:16:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585199.76/warc/CC-MAIN-20211018062819-20211018092819-00326.warc.gz","language_score":0.8434277772903442,"token_count":2754,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__276504548","lang":"en","text":"1000X USB DIGITAL MICROSCOPE DRIVER DETAILS:\n|File Size:||5.3 MB|\n|Supported systems:||Windows XP (32/64-bit), Windows Vista, Windows 7, Windows 8.1, Windows 10|\n|Price:||Free* (*Free Registration Required)|\n1000X USB DIGITAL MICROSCOPE DRIVER (1000x_usb_8847.zip)\n2020 popular digital microscope av trends in tools, security & protection, consumer electronics, electronic components & supplies with digital microscope av and digital microscope av. Find best dropshippers for uk motherboard wholesale and buy cheap motherboard integrated on dhgate website with high quality & fast delivery to uk.\nDigital Camera Compound Rechargeable Microscope.\n- 26 results for cell phone microscope save cell phone microscope to get e-mail alerts and updates on your ebay feed.\n- See more ideas about biological microscope, stereo microscope and inverted microscope.\n- Buy the latest professional digital microscope kits that offer 1080p live view with on-screen imaging controls to capture high-quality photos and videos within a wide range of working distances.\nAluminum alloy stand holder for usb/wi-fi digital microscope, bysameyee universal diameter metal mount with microscope carrying case. Top selling digital output for computer is a great quality product - buy now & save big! Apart from this, the microscope is fitted with 8 adjustable led lights that will increase the clarity of the specimen under observation. The things about these compared to a regular bigger one is that it has the wide scope, bit smaller camera, is very easy to use and affordable. 1000x wifi 8 led digital microscope magnifier cam + stand for android ios iphone. This device is better than the traditional ones we used to have. These devices then offer you clear images for easy visibility. Read reviews and get the best offer on best products.\n- Digital microscope, this type of unit connects to a computer or tablet to show the objects on a display screen.\n- Equipped with high resolution camera that offers up to 1000x zoom, nothing, simply nothing can escape your inspection.\n- Unmatched depth-of-field that is 20x greater than optical microscopes.\n- Amscope 40x-1000x microscope with usb digital.\n- Home / offer zone on mamnoon computer systems.\n- From compound to stereo and everything in between, we've got the instrument you are looking.\n- With type c/micro usb connector, you can use the microscope on otg android.\nGlass Optics Student Compound Microscope.\n|KJKA1043040A6K95274 Led Usb Digital Microscope Endoscope.||This wifi-usb digital microscope is able to work with ios and android devices via wifi connection.|\n|Usb Digital Microscope Driver U500x 500x 1000x Usb.||Usb digital microscope allows you to magnify your specimens up to 1000x the size!|\n|500x Usb Microscope, AliExpress.||The magnification range covers 50x to 1000x.|\n|Compare prices on Microscop Usb Shop best value.||And below i will go through which one are the good ones.|\n|Dino-Lite AM3111T 10X 50X 230X. USB Digital Microscope 0.|\nUSB Type Android.\nRead honest and unbiased product reviews from our users. 1000x usb digital microscope for electronic accessories coin inspection 8 led us. Shop amscope's premium-quality bundle kit microscopes at the lowest prices! S10 digital photography microscope magnifier - 1000x main features, - cmos sensor, reliable and stable. Usb microscope camera 50x to 1000x digital microscope usb 8 led light for iphone android wireless wifi handheld zoom magnification magnifier. Sign in to report inappropriate content. The 1000x microscope has 8 led lights built in with a dimmer switch to adjust it to a brightness which suits your surrounding light and time of day. Now be a pro in observing or inspecting small stuff in details with the ultimate usb digital microscope.\nUnfollow cell phone microscope to stop getting updates on your ebay feed. It is, therefore, ideal for both indoor and outdoor uses. Download usb digital microscope driver for free. A wide variety of usb2.0 digital microscope options are available to you, such as video microscope, biological microscope, and stereo microscope.\nDon t you want to see the smallest thing up close and see the unseen world? Dual power, this term refers to a microscope that can use two different magnification levels, such as 100x and 60x. Capture image jpg and record video mp4 and bundle applications. With leading edge technology, professional senior industry background and excellent operation and management mechanism, the company provides professional product solutions, marketing programs. With 250x optical and 4x digital zoom, the magnification can be up to 1000x. Welcome to the micro world with the digital microscope magnifier 1000x 2.0 usb microscope, great for kids, hobbyists, and professionals, allows you to work quickly and effectively at the microscopic level. Discount for cheap microscop usb, digital microscope vga andonstar 3000x digital microscope microscop for solder microscop 3000x adonstar camera hdmi metal microscope microscope with insightful reviews for microscop usb, ballistic kevlar 3a 3 m 250 usb cable micro usb soft usb wire for tablet electron microscop android cable lg 1m otg cable. If you want to buy cheap support angle, choose support angle from.\nBut i've always referenced the magnification like a 10x as 10x is just easy to multiply. For anyone who is trying to find 5.0m,10-250x,up to 1000x pixels usb digital microscope endoscope otoscope camera with led light with probably the most successful. Find many great new & used options and get the best deals for panasonic aw-ph360n pan/tilt camera head system at the best online prices at ebay! Easy- to-use digital microscope 500x, when you once assembling the handheld microscope, just plug it in to a usb port on your computer, install the software, and you can enjoy using it. Usb digital microscope 40x to 1000x, bysameyee 8 led magnification endoscope camera with carrying case & metal stand, compatible for android windows 7 8 10 linux mac.\n800x600 40x, 200x, the brand is asiatec marketing ltd. These digital devices function to create larger images of tiny objects. Screw measurement 50x area measurement of emulsion 1000x perform real. Try prime hello, sign in account & lists sign in account & lists orders try prime basket. Free shipping on orders over $25 shipped by amazon. DRIVER HP PAVILION X360 CAMERA WINDOWS 8.1 DOWNLOAD. These devices are high-definition digital cameras built with the zoom power of microscopes and featuring image resolution up to 1080p. Apparently, the software is called amcap according to this ebay listing, 1000x/1600x 8 led usb zoom digital microscope hand held biological endoscope us , ebay in that description you can contact them and they'll give you a download link.\nNew versions of the software should be released several times a quarter and even several times a month. Portable magnification is a useful and funny microscope for kids, students, engineers, inventors, and others who need to magnify and explore the micro things. Usb digital microscope 40x to 1000x, bysameyee 8 led magnification endoscope camera with carrying case & metal stand, compatible for android windows 7 8 10 linux mac item no., microscope-1000x easy to use & carry with carrying case. We pared seven best 2020 usb microscopes over the past 2 years. Facebook is showing information to help you better understand the purpose of a page. Auslese 50 to 1000x magnification endoscope, 8 led usb 2.0 digital microscope, mini camera with metal stand, compatible with mac & window 7 8 10 28 price 2,200.\nClick settings device to select usb2.0 uvc pc camera on the dropdown to make the microscope work. Wireless digital microscope, skybasic mini pocket handheld usb 50x to 1000x magnification camera 1080p fhd 2.0 mp 8 led wifi endoscope compatible with android smartphone, iphone, tablet, windows mac usb digital microscope 40x to 1000x, bysameyee 8 led magnification endoscope camera with carrying case & metal stand, compatible for android. Buy opti-tekscope digital usb microscope camera- advanced cmos sensor online at low price in india on. Shop a wide range of satellite motherboard at our online shop today!\nYou can also search by model, type, customtag 0 and manufacturer or opt for one of our usb digital microscope editorial picks. It is the best choice of small objects recognition. We adam's trader are an eminent entity involved in manufacturing an excellent range of ot light, surgical headlight, digital microscope, etc. Study your scientific specimens up close, right in the comforts of your home with the usb digital microscope. Free delivery and returns on ebay plus items for plus members. Jiusion 40 to 1000x magnification endoscope, 8 led usb 2.0 digital microscope, mini camera with otg adapter and metal stand, compatible with mac window 7 8 10 android linux #1 best seller. Heitewon usb digital wireless microscope is a battery-operated microscope that comes with a built-in 500mah battery for up to 90-minutes runtime. Here you can read details of amscope 40x-1000x biology science metal glass student microscope with a 1.3mp usb digital you want to buy amscope 40x-1000x biology science metal glass student microscope with a 1.3mp usb digital imager?read description and review below then find the special price by clicking hot link below!\nGoogle pixel 2 xl , so compability is really hit an miss. 26700-204 digital microscope,500x,usb, aven handheld aven microscope,500x,usb, 26700-204 handheld digital $292.00 supereyes a005+ 5.0mp. Microscope, biological microscope, lab microscope manufacturer / supplier in china, offering usb digital biological microscope dm152se , 10mm aisi 304 316 sex toys stainless steel ball, china factory g200 27/32 21.43mm carbon bicycle bearing stainless steel ball and so on. Mobile microscope, microscope digital, microscope camera manufacturer / supplier in china, offering portable 1000x rohs usb digital microscope with measuring software, cheap and useful wholesale decoys for hunting and decoration, aluminum alloy riflescope mount angle indicator and so on. Tipmant usb digital microscope magnification 40-1000x for inspection, industrial, science lab.\nKelima c22 usb digital microscope with 1000x magnifier main features, high-performance chip adjustable base, convenient and easy to operate. What is the best affordable, best inexpensive, best cheap brands to buy. The digital microscope wireless hand-held digital microscope/camera is easy to use. Sony camera attachment mva-1 for microscope and/or binocular here for sell is this sony camera attachment mva-1 for microscope and/or binocular in beautiful cosmetic condition and perfect working order, see pictures. Shop the top 25 most popular microscope 1000x at the best prices!\nMa , availability issues caused us to remove the aw model model from this selection, as well as a particular omano package. Find out which usb digital microscope matches you. Mt-31 led binocular advanced s.plan 4x, 10x, 40x, 100x built-in 3.2 mp usb 2.0 digital camera compound rechargeable microscope new mt-31 is an advanced student level compound brightfield biological compound led microscope with built in usb 2.0 digital camera is our best buy for a student microscope that is affordable and portable! Features included in model am4113zt, microtouch mt measurement ms scroll lock sc and polarization pz 10-50x, 220x optical magnification and 1280 x 1024 1.3mp true image resolution, 30 fps video support, dino-lite has been the pioneer innovator in portable digital microscope solutions for over 10 years. The microscope seems to be using very old firmware and drivers which may be the basis of the issues. We use big data and ai technology to filter millions of reviews from customer. Rotek - wireless digital microscope 50x & 1000x, unbox and review - best present - duration, 6, 15.\nSee more ideas about digital microscope, high resolution camera and digital. Usb dc 5v power supply, no need external power adapter. It also comes with an easy-to-adjust light wheel on the microscope s body, which lets you make changes quickly. Check out price and features of microscopes priced 1,000 - 5,000 at. Wireless digital wifi usb microscope 50x to 1000x magnification mini handheld endoscope inspection camera with 8 leds with metal stand, compatible with iphone, ipad, android smartphone, mac, windows jiusion 40 to 1000x magnification endoscope, 8 led usb 2.0 digital microscope, mini camera with otg adapter and metal stand, compatible with mac.","domain":"optical_engineering"}
{"url":"https://docur.co/documentary/telescope-2016","date":"2023-06-08T19:48:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655092.36/warc/CC-MAIN-20230608172023-20230608202023-00514.warc.gz","language_score":0.9672367572784424,"token_count":157,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__290240174","lang":"en","text":"The Hubble telescope has been around for more than 20 years now and while it is a fantastic piece of kit new technologies are going to allow us to view the universe like never before. This 2016 documentary presented by Nathaniel Kahn focuses on the telescopes which are going to change the way in which view the world around us. The film starts with the evolution of telescopes through the ages until today and then looks into the brand new telescope being developed by NASA; the James Web Telescope. The Hubble Telescope is around the size of a car, the James Web telescope which is due to be launched in October 2018 will be the size of a bus.\nThe James Web Telescope will have magnification capabilities 100 times greater than that of the Hubble telescope which is certainly going to open a new window of information for humans.","domain":"optical_engineering"}
{"url":"https://www.3tautomotive.com/why-is-xenon-used-in-car-headlights/","date":"2022-01-26T11:21:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304947.93/warc/CC-MAIN-20220126101419-20220126131419-00517.warc.gz","language_score":0.9206498265266418,"token_count":617,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__182737327","lang":"en","text":"Xenon is a gaseous element that can emit a bright white light when electricity passes through it. Xenon lights utilize that xenon gas instead of halogen gas and also use an electric arc in place of a metal filament to provide more lumen while consuming less electricity, making them more energy-efficient.\nXenon headlights come with several components including gas discharge lamp, xenon ballast and ignition module.\nHow they work\nConventional halogen bulbs work by passing electricity through a tungsten filament inside the bulb filled with halogen gas. Then, the tungsten filament heats up and glows. But in Xenon HID headlights, bulbs do not contain the filament to pass electricity through. Instead, it works by ionizing the xenon gas inside the bulb.\nXenon HID bulbs work in three stages; ignition, heating up and producing bright light.\nFirstly, electricity passes through the ballast to the bulb’s electrodes. This ionizes the xenon while creating a “bridge” between electrodes. Then, the ionization of the gas rises the temperature and the resistance between the electrodes is reduced. Finally, the xenon ballast supplies the bulb with constant power of about 35 Watt and allows the bulb to operate at full functionality, delivering bright white light.\nNote that, the xenon gas only gets used in the initial phase of illumination. After that, other gases inside the bulb gets ionized, then, they take place xenon in providing bright illumination.\nThere are 5 top advantages of xenon headlights.\n1. Whiter Lighting\nXenon headlights produce a very white light as the xenon system mimics that of natural daylight.\n2. Brighter Lighting\nWhen you are driving at nighttime, you can make your environment seem like daytime using xenon headlights. They are brighter than both halogen lights and LED lights.\nThe xenon gas containing in the bulbs will not die or become insufficient anytime soon. Xenon headlights will last for as long as 2,000 hours of usage.\n4. More Energy Efficient\nXenon headlights have very good energy efficiency which will save your battery power. You only need a higher amount of energy during startups and then they use far less energy during the normal operation.\n5. Broader Coverage\nNot only xenon HID lights produce brighter, more natural light, they also travel wider and illuminate further down the road more than halogen lights.\nHowever, there are some drawbacks as you can always find.\nThe brightness of xenon light can cause glare to reflect in other cars’ mirrors and affect other drivers on the road. Which will make it more difficult for them to see the road and can even rise the risk of accident.\n2. Not Cheap\nXenon headlights are one of the best and brightest, which means they are also one of the most expensive headlights in the market.","domain":"optical_engineering"}
{"url":"http://www.isabelwang.com/blog/2018/4/10/i-made-a-new-friend","date":"2019-01-21T05:48:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583763149.45/warc/CC-MAIN-20190121050026-20190121072026-00114.warc.gz","language_score":0.9267511367797852,"token_count":157,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__100521762","lang":"en","text":"One limitation of the Matterport camera is that direct sunlight interferes with its infrared sensor, making outdoor 3D capture very challenging - and at times downright impossible. The Leica BLK360 laser scanner handles bright light well and covers large, empty spaces efficiently. But its long scan times make it impractical for furnished interiors.\nLast year Matterport began testing Leica BLK360 integration, so that scan data from both devices can be combined into one single 3D model. The beta program is now open to the public and I signed up today. I also took a trip to Kuker-Ranken, a local Leica distributor, to gets some hands-on instruction on using the BLK. Stay tuned... you may soon be seeing more of the outdoors in my tours!","domain":"optical_engineering"}
{"url":"https://artwolfe.com/2019/01/15/","date":"2024-04-13T19:02:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00574.warc.gz","language_score":0.933178722858429,"token_count":475,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__69985904","lang":"en","text":"Since they are a niche piece of equipment, not everyone is familiar with what exactly a tilt-shift lens is and what they are used for. Admittedly, I’ve only used them sparingly in my career. Speaking in simple terms, a tilt-shift lens is a lens that allows the optics to tilt and rotate in relation to the image sensor on your camera.\nWhen you take a photo with a standard lens, your lens and the sensor create planes of the same angle. At a wide aperture, everything in front of and behind your focus point will gradually become more out of focus. Using a tilt-shift lens, you can achieve more control over what is or is not in focus by having greater control of your focusing planes, therefore keeping more of the image both in and out of focus, depending on what you’re looking for. It should be noted that there is no auto-focus available on T/S lenses.\nYou can use this flexibility to achieve a number of desired outcomes. Although on short notice prior to my trip my Canon rep was unable to get me the lens, I was able to rent the Canon TS-E 135mm f/4L MACRO from borrowlenses.com and use to great effect while photographing a king penguin colony on South Georgia Island. By tilting the lens down, you’re essentially moving the plane of lens to be closer to the angle of the the ground and in effect, widening what falls into the range of focus. This allows you to utilize some of the benefits of a relatively lower aperture while still achieving a great deal of detail.\nThis is just one use and effect achievable with a tilt-shift lens. Even if you’re not familiar with their use, it’s likely you’ve seen photos or even video utilizing the concept. In portrait photography, where a longer lens is ideal to bring attention to the subject and blur the background, a tilt-shift lens can be used to use such a lens in a tight space. In architecture, having greater control over your image plane can be used to combat the distortion that often happens to parallel lines. If you’ve ever seen a photo of a cityscape that looks more like a scale model than an actual city – that’s a tilt-shift lens in action!","domain":"optical_engineering"}
{"url":"http://ryzenlg.com/led_lights/10w-br40-bulb/","date":"2020-03-30T15:26:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370497171.9/warc/CC-MAIN-20200330150913-20200330180913-00082.warc.gz","language_score":0.6877046227455139,"token_count":110,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__85426037","lang":"en","text":"9w BR40 Bulb\n– This bulb is an ideal replacement for 65 watt incandescent flood lights.\n– Great for use in dimming recessed lighting, track lighting and display lighting applications.\n– This LED bulb is capable of dimming to less than 9%.\n– Full 120° beam angle provides full radial illumination.\n|Model Numbers:||LBR4927D7 / LBR4950D7|\nDownload Product Sheets\n|9wBR40Bulb - LBR4927D7|","domain":"optical_engineering"}
{"url":"https://yourfamilyeyedoctors.com/products/lenses/","date":"2021-07-28T01:55:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153515.0/warc/CC-MAIN-20210727233849-20210728023849-00522.warc.gz","language_score":0.9179826974868774,"token_count":885,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__6863935","lang":"en","text":"Lenses are the most important part of any pair of eyeglasses. While it might be the frame that you notice first, it’s what you don’t see that matters most when considering ophthalmic lenses. For instance, you don’t want to see reflections, distortions, or excessive edge thickness. Choosing the appropriate lens options will not only improve your vision but it will also enhance the appearance of your eyewear, especially in higher prescriptions. We prescribe the world’s finest ophthalmic lenses and coatings by Essilor.\nThin, lightweight, clear\nHi-index is a special type of plastic lens that is thinner and lighter than conventional plastic lenses. Hi-index material bends light more efficiently than regular plastic, allowing for a decrease in the amount of lens material needed to achieve the same prescription strength. The effect can be quite dramatic, with a 30-40% thickness reduction in high prescriptions, and excellent low distortion vision. Try hi-index for the thinnest lenses available and the best look cosmetically.\nThin, lightweight, safe\nPolycarbonate lenses, made of a type of plastic, are thin and lightweight and offer superior impact resistance. They have built-in UV protection. Optical quality, while good, is not quite the equal of hi-index, standard plastic, or Trivex. They are a popular choice for safety glasses and sports glasses.\nlightweight, safe, durable, superb clarity\nTrivex lenses (PPG Industries) are thin and lightweight, and like polycarbonate, have the added benefit of maximum impact resistance. They are made of an extremely rigid and durable material known for its outstanding optical quality. It is good choice for children and anyone who desires lightweight comfort, crisp optics, and unsurpassed protection. Trivex is also the lens of choice for rimless and drill-mount frames.\nChanging from clear to dark, automatically\nTransitions (PPG Industries) are photochromic lenses. Photochromic lenses darken when exposed to ultraviolet (UV) light and lighten once UV light is no longer present. Transitions are made from lightweight plastic and utilize a special molecular technology on the lens surface to achieve rapid darkening outside while becoming nearly clear inside and at night. They constantly adjust to the natural light of the day. Transitions lenses protect your eyes from UV light, and reduce glare and eyestrain, while improving contrast. They do not darken as much in a car because the windshield blocks UV light. Consider Transitions lenses when a separate pair of sunglasses is not feasible, or if you simply like the flexibility and optical advantages of a photochromic lens.\n“Say no” to glare\nAnti-reflective (AR) coating is a multilayer coating applied to the front and back lens surfaces, which reduces glare and reflections. It improves both the vision through your glasses and the appearance of your glasses. AR coating is particularly useful for night driving, eliminating halos around lights and annoying glare. Cosmetically, AR coating makes the lenses in your glasses appear invisible, allowing others to see your eyes clearly. We believe AR coating is one of the most valuable options you can add to your eyewear and we recommend it to virtually all eyeglass wearers. Ask for Crizal, the ultimate solution to no glare.\nRelax your eyes outdoors\nPolarized lenses contain a special filter that blocks light reflected from flat or smooth surfaces such as water, snow, or a road surface. These reflections cause intense, annoying glare. Polarized sunglasses improve visual comfort, especially for activities such as fishing, boating, golfing, biking, or jogging. They are great choice for anyone who spends a lot of time outdoors.\nTwo technologies combined\nNo. You don’t have to go to the racetrack to wear Drivewear. It’s for everyday driving and it can benefit just about anyone. Drivewear combines photochromic automatic darkening lenses with the added benefit of polarization. They not only darken outdoors, they also darken behind the windshield of a car. So, depending on the conditions, whether it’s low light or daylight, Drivewear provides optimum visual comfort and glare reduction. Just don’t wear them at night.","domain":"optical_engineering"}
{"url":"https://papillondental.com/product/genoray-portview-size-2-intraoral-sensor/","date":"2023-09-23T17:30:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.19/warc/CC-MAIN-20230923162848-20230923192848-00517.warc.gz","language_score":0.8885162472724915,"token_count":246,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__128669294","lang":"en","text":"Genoray Portview (Size 2) Intraoral Sensor\n- The Genoray PortView is a CMOS area image sensor developed for digital dental X-ray imaging with 2.2 megapixels (1,300 x 1,700) and a monitoring photodiode for detecting X-ray irradiation.\n- 2-year parts warranty\n- The PortView supports USB 2.0 and is designed to be dust and waterproof, with a fiber optic plate (FOP) used as the input window to ensure high image quality and long sensor life even under exposure to X-rays.\n- It is available in two sizes and features high-resolution imaging with a 19-micron pixel providing an outstanding image, high-performance x-ray conversion layers, and a clear image.\n- The PortView is designed to be ergonomic, with rounded corners for patient comfort, and is reliable with an easy plug-and-play system, a sealed cord to protect against fluids and contaminants, and vertical bitewings providing bounded strain relief.\n- Additionally, the PortView allows for a wide range of exposure with automatic electronic gain control.","domain":"optical_engineering"}
{"url":"http://san-diego-cabling.com/fiber-optic-installation.aspx","date":"2021-01-23T17:54:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703538226.66/warc/CC-MAIN-20210123160717-20210123190717-00104.warc.gz","language_score":0.8203897476196289,"token_count":469,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__47958995","lang":"en","text":"San Diego Fiber Optic Installation, Termination, Testing & Certification | Single mode, Mutlimode, ST - SC - LC - MTRJ\nSan Diego Network Cabling & Wiring is a fiber optic cable installation contractor offering a wide range of optical fiber services, including installs of single or multimode fiber; fiber optic cable testing & certification; and fiber optic cable termination (ST - SC - LC - MTRJ connectors). We will ensure quality control throughout the process and strive to exceed your expectations each step of the way.\nIn addition to the design and implementation of structured cabling systems using Cat 5, Cat 5e and Cat 6 cabling, we are a San Diego fiber optic installer, offering San Diego fiber optic installation, termination and testing. We are available to serve San Diego and surrounding areas with testing & certification of:\nCat 5e, Cat 6, Fiber Optic, Wire Management, Patch Panel Termination, Testing, Certification and 25 Year Factory Backed System Warranty. We also offer San Diego fiber optics installation including flexible innderduct, rigid inner duct and corrugated tubing.\nCall or Email Us for a Free Site Survey & Written Estimate:\nWe are available to meet all of your service needs 7 days a week 24 hours a day.\nWe provide qualified technicians around the clock at lower hourly bill rates than our local competitors.\nWe are a San Diego network cabling / wiring company that provides voice & data cabling, San Diego fiber optics installation, business phone system sales & installation, VoIP phone systems and other services in Alpine, Bonita, Bonsall, Camp Pendleton, Cardiff by the Sea, Carlsbad, Chula Vista, Coronado, Del Mar, Descanso, El Cajon, Encinitas, Escondido, Fallbrook, Imperial Beach, Jamul, La Jolla, La Mesa, Lakeside, Lemon Grove, Lincoln Acres, National City, Oceanside, Pala, Palomar Mountain, Pauma Valley, Poway, Ramona, Rancho Santa Fe, San Diego, San Luis Rey, San Marcos, Santa Ysabel, Santee, Solana Beach, Spring Valley, Valley Center, Vista and surrounding areas. Please contact us for a free site survey and written estimate.","domain":"optical_engineering"}
{"url":"https://smartstyletoday.com/glasses-giving-us-glimpse-future/","date":"2024-04-15T21:29:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00314.warc.gz","language_score":0.9789294600486755,"token_count":360,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166644895","lang":"en","text":"The eyewear market has seen significant changes over the past few years. It wasn’t that long ago that individuals would purchase only one pair of glasses per year and they were based more on function than style. However, as new technologies have streamlined lens crafting and or society has become increasingly individualized, having several pairs of glasses has become commonplace.\nIt’s quite interesting to think of where glasses are compared to where they began. The first glasses were crafted from crude glass lenses fitted into wooden or leather frames. They were often worn perched atop the nose or held with one hand, and they were initially used by monks and then later were adopted by scholars, which is why even today, wearing glasses is often associated with intelligence.\nIn 2022, there are so many more purposes for glasses than could have been imagined from their humble beginnings. Today, smart glasses are the biggest trend in glasses technology.\nFor instance, monocular smart glasses can be used by surgeons as they operate so that they can monitor patient vitals and view augmented information just outside their line of vision. Binocular smart glasses also display augmented information and can be used to overlay basic 2D and 3D graphics. These can be used by engineers repairing oil rigs in the field while receiving information from their home office directly onto their lenses.\nGlasses can already aid us in virtually everything we do and the future of glasses is still likely to go far beyond our current imaginings.\nIf you’re interested in learning more about the latest glasses trends, make sure to check out the International Conference on Glass Science and Technology in New York. If you’re not in the US, you’re bound to find a conference that’s virtual or hybrid in a post-COVID world.","domain":"optical_engineering"}
{"url":"http://www.qcell.tech/technology/","date":"2020-10-31T16:50:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107919459.92/warc/CC-MAIN-20201031151830-20201031181830-00381.warc.gz","language_score":0.8511877059936523,"token_count":247,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__111472984","lang":"en","text":"The concept of Hyperspectral Imaging\nHyperspectral imagers collect a stack of monochromatic images spanning the entire palette of colors (wavelengths) of the rainbow including both the visible and the invisible (UV, NIR) spectral bands.\nEach pixel in the stack (spectral cube), therefore, represents the spectrum of the scene at that point. The collected millions of spectra provide diagnostic information for the compositional status of every point of an object with a single scan\nThe methodology is aimed at providing a comprehensive spectral analysis of complex heterogeneous samples.\nComparison with trichromatic imaging/vision\nColor cameras emulate human trichromatic vision. They capture color images composed by only three broad-band images.\nColor images are suitable for documentation; they miss, however, significant analytical/diagnostic information, since the remitted light is sub-sampled into those three, broad spectral bands.\nThe color of a pixel is made up by the mixing the thee Red Green Blue (RGB) primary colors (color coordinates).\nThe evolution of Hyperspectral Imaging\nThe QCELL’s Technology Superiority: Introducing the 5MP video spectral imaging.","domain":"optical_engineering"}
{"url":"https://www.cristos-vournas.com/444020463","date":"2022-10-02T03:47:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337244.17/warc/CC-MAIN-20221002021540-20221002051540-00208.warc.gz","language_score":0.9053857326507568,"token_count":392,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__202322704","lang":"en","text":"This is what I call reflection of the sun light\nWhen you look at the sea from some elevated place at close to the sunset time you can observe these images.\nIt is better seen on the water, than on land.\nIt is the reflection.\nReflection is when you see the luminous object in the mirror.\nReflection is when you see yourself in the mirror.\nWhen you see the reflection of sun, you can see the sun in the mirror. Sun's reflection in the mirror is blinding.\nThe solar reflection is indeed blinding\nThe solar reflection is indeed blinding. When you look in the opposite of the sun direction you cannot see the solar reflection.\nWhat you see when you look at the sun lighted sea surface having the sun behind you is the sea surface illuminated by the dispersed on the surface sunlight.\nThe dispersed on the surface light also escapes in the outer space, but it is a secondary reflection and it is described by surface's Albedo \"a\".\nThe direct reflection is described by the (1-Φ), where \"Φ\" is the Spherical Surface Solar Irradiation Accepting Factor.\nFor a smooth without-atmosphere spherical surface, such as Earth, Moon, Mars, Mercury and other:\nΦ = 0,47\nEarth has a very thin atmosphere which does not affect the Earth's surface solar irradiation absorbing-emitting process.\nSun's reflection cannot be seen from the space because of the planet's spherical shape.\nSun's reflection on the planet's surface is mirroring and it is blinding.\nThe faster a planet rotates (n2>n1) the higher is the planet’s average (mean) temperature T↑mean:\nTmin↑→ T↑mean ← T↓max","domain":"optical_engineering"}
{"url":"http://www.innovativeroadsafetyequipments.com/safety-reflectors.html","date":"2019-11-17T08:29:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668896.47/warc/CC-MAIN-20191117064703-20191117092703-00179.warc.gz","language_score":0.9574882388114929,"token_count":110,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__54885906","lang":"en","text":"LED Reflectors are either spotlights or floodlights which are different from regular LED lights because they reflect light at a certain angle. These bulbs are more energy-effective and the lamp lifetime is also increased. These are very small and compact but provide quality light continuously. There are no UV or IR radiations in the light beam and the emitted heat is also very less. Apart from white light, these can also generate colored light. These lamps can be used in residential or commercial buildings.\nPrice Range : 600.00 - 850.00 INR","domain":"optical_engineering"}
{"url":"http://wps.prenhall.com/esm_giancoli_physicsppa_6/17/4360/1116299.cw/content/index.html","date":"2013-12-13T07:37:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164911644/warc/CC-MAIN-20131204134831-00044-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8754069805145264,"token_count":312,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__204576422","lang":"en","text":"After studying the material of this chapter, the student should be able to:\n1. Identify the major components of a simple camera and explain how these components combine to produce a clear image.\n2. Identify the major components of the human eye and explain how an image is formed on the retina of the eye.\n3. Explain the causes of myopia and hyperopia, describe how these conditions may be corrected, and solve word problems related to corrective lenses for these conditions.\n4. Explain how a magnifying glass can be used to produce an enlarged image and solve word problems involving the magnifying glass.\n5. Explain how two convex lenses can be arranged in order to form an astronomical telescope and solve word problems related to this type of telescope.\n6. Explain the operation of the Newtonian focus telescope, Cassegrainian focus telescope, and Galilean type telescope.\n7. Explain how two convex lenses can be arranged in order to form a compound microscope and solve word problems related to this type of microscope.\n8. Distinguish between spherical aberration and chromatic aberration and explain how each type of aberration can be corrected.\n9. Describe the factors which affect resolution of an image and limit the effective magnification of a telescope or microscope.\n10. Explain how the phenomena of x ray diffraction can be used either to determine the distance between the atoms of a crystal or the wavelength of the incident x rays. Use the Bragg equation to solve word problems involving x ray diffraction.","domain":"optical_engineering"}
{"url":"https://www.breelighting.com/product/150W-LED-Street-Light-LED-Shoebox-Light-Parking-Lot-Light.html","date":"2023-05-30T15:21:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645810.57/warc/CC-MAIN-20230530131531-20230530161531-00272.warc.gz","language_score":0.7220710515975952,"token_count":208,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__102809984","lang":"en","text":"LED Street Light,LED Shoebox Light,LED Parking Lot Light\n- Soft light with high light effect.\n- Cold lighting source,no heat radiation,no harmful metal mercury,and environmental protection.\n- Low power consumption,long lifespan,good stability,high reliability.\n- Compared with the filament lamp of the same light effect,80% reduction in energy consumption.\n- Novel design,elegant and beautiful,with modern lighting features,easy to install and adjust.\n- Nicely die-casting ADC12 aluminum alloy housing\n- IK10 strong protection,good optical function\n- Life Span:>50,000Hours\n- Operating Temperature:-20-50℃\n- Storage Temperature:-40-60℃\n- Housing Color:Bronze\n- -90°~+90° Ajustable Angle\nFor more hot selling products,please kindly contact us,information share immediately.","domain":"optical_engineering"}
{"url":"http://www.bestsolarpanelsonthemarket.org/Types-of-Solar-Cells/","date":"2013-12-07T06:45:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163053664/warc/CC-MAIN-20131204131733-00025-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.9346922636032104,"token_count":663,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__124382007","lang":"en","text":"There are many different types of solar cells, which are the small, light harnessing devices that convert the sun’s rays into usable electricity. Solar panels are in fact sheets composed of large arrangements of different types of solar cells.\nThe most common material used among the different types of solar cells is a substance known as crystalline silicon. In the context of solar energy, this material is often referred to as “solar grade silicon.” Silicon-based solar cells can be further divided into three separate categories.\nMonocrystalline or single-crystal silicon is among the most common of the different types of solar cells. These cells are manufactured through a detailed process of purifying, melting, and crystallizing the silicon into solid ingots, or bars. With the purified silicon crystallized, it is cut into thin discs which are laid out over the surface of a solar panel. Like other types of silicon solar cells, the cells are activated when photons strike the surface of the cell. Photons are the small particles of energy which constitute sunlight. Photons striking the solar cells causes a disruption and directional flow of electrons, a phenomenon which constitutes electrical current, and in this case, the basis of solar power.\nPolycrystalline or multicrystalline silicon cells are another type of solar cell which make solar energy possible. These cells are manufactured in a process similar to that of monocrystalline silicon cells. However, multicrystalline silicon cells utilize lower cost silicon, resulting in diminished efficiency. Despite this drawback, the reduced cost of these types of solar cells may outweigh the resulting loss of harnessing solar energy.\nA third type of of silicon solar cells is known as ribbon silicon. Rather than crystallizing the silicon into a solid bar, these solar cells are made by drawing molten silicon into a long ribbon and eliminates the processing of cutting silicon into discs. Although ribbon silicon is less efficient than polycrystalline solar cells, costs are greatly reduced, as the silicon used is a lower grade. Furthermore, since this process does not involve cutting of the material, there is little to no waste of silicon, further reducing production costs.\nIn contrast to crystalline silicon solar cells, thin film solar cells are assembled with several layers of different types of solar power-producing materials. This type of solar cell is also referred to as “amorphous silicon,” as it lacks the crystal-like structure present in crystalline silicon solar cells. There are several different types of thin film solar cell materials, including amorphous silicon, cadmium telluride, copper indium gallium selenide, and dye-sensitized solar cells.\nThis variation of solar cells allows portions of light to pass through the first layer, where it can be absorbed in subsequent layers. Because sunlight exists in different wavelengths, the different layers of a thin film solar cell can be adjusted to absorb different wavelengths of light and convert them in to solar energy. Thin film solar cells are much less efficient than other types, but are also much less expensive. A great deal of research is being dedicated to improving the efficiency of thin film solar cells. Of all the different types of solar cells, these have tremendous promise as a large-scale, cost effective solar power option.","domain":"optical_engineering"}
{"url":"http://www.ebaystores.ca/BLAST-LED/BMW-LED-Angel-Eye-/_i.html?_fsub=5084205017","date":"2018-06-24T01:52:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865995.86/warc/CC-MAIN-20180624005242-20180624025242-00259.warc.gz","language_score":0.8400421738624573,"token_count":176,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__44567202","lang":"en","text":"|At Blast LED, we specialize in designing and developing LED Speaker Rings, CupHolder Rings, JL Subwoofer rings for boats. We work with the manufacturing companies to design and build high quality Underwater and Drain plug lights.\nUpgrade your Boats with BLAST LED line of LED-based products.|\n15 results found in BMW LED Angel Eye View as:GallerySort by:Time: newly listed\n120W BMW E63,E64,E70,E81,E82,E87,E88,E90,E91,E92,E93, X...\n|15% Off||US $89.99|\n32W BMW E63,E64,E70,E81,E82,E87,E88,E90,E91,E92,E93, X5...","domain":"optical_engineering"}
{"url":"http://www.bjhddgchn.com/en/index.php?m=content&c=index&a=show&catid=26&id=54","date":"2023-12-03T17:04:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.42/warc/CC-MAIN-20231203161435-20231203191435-00410.warc.gz","language_score":0.8729824423789978,"token_count":253,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__146655285","lang":"en","text":"On-site Symposium on Application Effect of Wear Resistance of Boiler Water Wall in Jiangmen Shuangshui Power Plant\nsource： time：2018-11-17 09:14:00\nBeijing Huadian Degao Company successfully concluded the laser cladding wear-resistant technology exchange and on-site observation meeting held in Jiangmen Shuangshuang Hydropower Station, Guangdong Province from November 16 to 17, 2018. Industry experts, boilers and technical backbone of power plants and other participants entered the boilers to investigate the effect of laser cladding technology in different parts on the spot. In the past six years, the cladding layer of water-wall pipe has been in good condition and the effect is excellent. The anti-wear effect of laser cladding technology is verified again. To solve the local serious wear problem, Huadiande high laser cladding technology is preferred!\nFig. 1 Exchange of technical presentations between experts and heads of power plants\nFig.2 Boiler Operation Control Room\nFig. 3 enters the boiler for on-site observation\nFig.4 Field effect chart after nearly 6 years of use\nFig. 5 Local enlargement effect in the field after nearly 6 years","domain":"optical_engineering"}
{"url":"http://zch.optics.sh.cn/lydt/4110.jhtml","date":"2017-10-24T01:53:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187827853.86/warc/CC-MAIN-20171024014937-20171024034937-00894.warc.gz","language_score":0.8925551772117615,"token_count":415,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__64511145","lang":"en","text":"Nanoscale displacement measurement by a digital nano-moiré method with wavelet transformation\n发布时间： 2006-08-11 00:00:00 作者： Chia-Ming Liu Lien-Wen Chen Ching-Cheng Wang 来源： iop 浏览次数：\nA digital nano-moiré method with wavelet transformation is explored to measure nanoscale in-plane displacement fields. By applying e-beam lithography, a periodic PMMA nanostructure array is fabricated directly on the specimen and used as the specimen grating. Moiré patterns are generated by overlapping the images of the PMMA specimen grating obtained from AFM scanning and the virtual reference grating produced by a digital image generating process. Then, the overlapped images are filtered by the 2D wavelet transformation (WT) to capture the target moiré patterns. Existing methods, by overlapping the monitor-generated scanning lines with the image of the specimen grating, cause a mismatch problem. Previously, the carrier moiré method was explored with the aim of curing the mismatch problem. Unfortunately, the carrier moiré method, in addition to suffering from increased complexity of mathematical calculations, is incapable of directly obtaining the displacement field. Thus, the mismatch problem will result in inconveniences and restrictions in the practical application. Instead of using monitor-generated scanning lines, the proposed method applies the virtual reference grating, and thus puts the mismatch problem to rest. Nevertheless, the resultant moiré image suffers from low contrast which, if left untreated, might distort the measurement result. Therefore, the WT, known for its sharpened abilities of characteristic and edge detection, is used to capture the target moiré patterns and improve the measurement accuracy. The proposed method has been carried out in the laboratory. Experimental results have shown that the proposed method is convenient and efficient for nanoscale displacement measurement.","domain":"optical_engineering"}
{"url":"https://www.eventerprise.com/event-business/laser-electronics-ltd-skegness-england-4cd830/","date":"2020-05-28T14:51:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347399820.9/warc/CC-MAIN-20200528135528-20200528165528-00385.warc.gz","language_score":0.9508398771286011,"token_count":288,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__12817521","lang":"en","text":"Laser Electronics Ltd was formed in 1992 and is a small High Technology Electronics company based in Skegness, Lincolnshire, England.\nWe specialise in the design and manufacture of software and hardware for Laser Light Show entertainment, Lighting applications, Multimedia, Scientific, Medical, Research and Industrial applications. Over the past 22 years, we have become a leader in the Laser Light Show, Research, Medical and Multimedia industries, we have the track record and necessary expertise to provide you (the client) with the innovation of high technology bespoke systems.\nAll aspects of our systems are engineered to the highest specification, with all equipment built and tested at our premises here in the UK so that you can be assured of a quality UK product, tailored for your application designed, built and backed here with full technical support here in the UK.\nLaser Electronics Ltd also offers a full Service and Repair facility for all your application needs. We have in-house facilities for the refurbishment of most makes of ion lasers, we repair and service most makes of DPSS and OPSSL lasers, our services also include replacement Brewster windows, cathodes, re-gassing, LBO, KTP, BBO, PPLN and the replacement where necessary of associated optical and electronic components within the laser systems being serviced. We have the expertise to take any Non-Working Laser system and resurrect it back to original or better specification.","domain":"optical_engineering"}
{"url":"http://www.hammillpost.com/2013/02/fda-approves-first-bionic-eye/","date":"2017-04-28T21:52:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123097.48/warc/CC-MAIN-20170423031203-00386-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9542406797409058,"token_count":374,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__145782293","lang":"en","text":"The idea of artificial optics is not entirely a new concept but its practical application has only recently become a reality. The Food and Drug Administration finally has approved the use of the Alpha IMS: an artificial optic implant. This device has made powerful progress in efforts to restore vision to the blind.\nDeveloped by a team in the University Eye Hospital in Tübingen, Germany, the Alpha IMS is not the first-ever optical device developed to grant vision to blind patients. However, it is the first self-contained bionic implant. Unlike previous attempts that utilized an external camera mounted to a patient’s head, the Alpha IMS is actually implanted behind the retinal wall of the eye. There it uses micro-photodiode arrays to translate light signals that then bypass any typical channels of transmittal. It then sends those electrical impulses straight into the occipital lobe.\nAlready nine trial patients have received this implant and are reporting amazing results. Patients who have received this implant can revel in such seemingly mundane sights like storefronts. One patient recounts seeing his wife’s face for the first time.\nBesides being self-contained, the implant is remarkable in for how far it has advanced the field of optic implants. This is the first optic implant that is customizable. There is actually a dial on the side of each patient’s head that allows the brightness of the implant to be adjusted for comfort. While the recently-approved Argus II has 60 electrodes, Alpha IMS has 1,500.\nThe age of cybernetic bionics apparently is already upon us. Beyond granting eyesight to the blind, there are efforts to restore hearing, the ability to move limbs, and much more. As scientists continue to find ways to advance this technology, physical disabilities seem ever more likely to become a thing of the past.","domain":"optical_engineering"}
{"url":"https://www.seeker816.com/sale-11598753-f-engine-ol200-series-fiber-optic-transceivers.html","date":"2023-12-06T08:31:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00262.warc.gz","language_score":0.9158936142921448,"token_count":139,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__124298465","lang":"en","text":"F-engine OL200 series optical fiber transceiver is a highly reliable and low-cost Ethernet transmission media converter designed according to the latest technology development. Its function is to efficiently realize the conversion between 10M/100M Ethernet ports and optical ports.\nOL200 series fiber transceiver adopts the light module of famous brand at home and abroad, and has the ability of ultra-low transmission delay and line speed forwarding. The transmission distance supported by optical interface is 20km, 40km, 60km and 120km. The electrical interface supports full duplex/half duplex mode adaption, among which 10/100m electrical interface supports 10 and 100M speed adaption.","domain":"optical_engineering"}
{"url":"http://www.artisanoptics.com/eyewear/lens_coatings/scratch__coating/","date":"2017-05-27T12:07:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463608953.88/warc/CC-MAIN-20170527113807-20170527133807-00389.warc.gz","language_score":0.9553486108779907,"token_count":187,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__118053769","lang":"en","text":"No eyeglass lens material — not even glass — is scratch-proof. However, a lens that is treated front and back with a clear, hard coating does become more resistant to scratching, whether it's from dropping your glasses on the floor or occasionally cleaning them with a paper towel. Kids' lenses, especially, benefit from a scratch-resistant hard coat.\nSince a scratch-resistant coating can't completely protect your lenses from wear and tear, do keep your glasses in a cushioned case, and clean them with a microfiber cloth and a recommended cleaning solution. Not all cleaning solutions are the same - some can even damage your lenses unless approved for your specific type of lens and lens coatings. Also, be wary of those products that promise to repair your scratched lenses. They may fill in the cracks of the scratches, but it is nearly impossible for them to make the scratches disappear so the lenses look new again.","domain":"optical_engineering"}
{"url":"https://sharepoint.washington.edu/phys/research/Pages/Quantum-Information.aspx","date":"2018-06-23T19:30:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865181.83/warc/CC-MAIN-20180623190945-20180623210945-00442.warc.gz","language_score":0.8535726070404053,"token_count":398,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__94317056","lang":"en","text":"|Associate Professor (joint in EE)|\nOur research focuses on spin-systems in solids for experimental quantum information processing (QIP) and sensing applications. We use optical techniques to study and control spin dynamics in semiconductors and diamond. Coupled optical-spin systems are integrated into nanophotonic devices to enable optical communications between spins for QIP and to increase magnetic sensitivity in sensing applications.\n|Trapped Ion Quantum Computing|\nWe work on experimental implementation of quantum computation and quantum communication using single trapped ions and single photons, and the hybrid atom-photon entangled state. Apart from the quantum information applications, we are also interested in testing the fundamental principles of quantum mechanics.\nOne research theme in our group is the study of interacting quantum mixtures of atoms at 100 nanoKelvins, and preparation and studies of polar diatomic molecules. These systems can precisely explore fundamental few- and many-body physics and are applicable towards quantum simulation and information science. The second is the development of an atom interferometer using Bose-Einstein condensates to measure the fine structure constant and precisely test the theory of quantum electrodynamics.\n|Associate Professor (joint in MSE)|\nMy group investigates new physics arising from novel 2D electronic materials for potential quantum information and quantum computation applications. We are very interested in two systems. The first is atomically thin transition metal dichalcogenides. This system provides strongly coupled spin-valley degrees of freedom, which leads to long relaxation and coherence time of spins and electrons in valleys. The second system is three-dimensional topological insulators. This new phase of quantum matter provides helical surface spin states which are protected by bulk topological invariant and immune to non-magnetic scattering. By nanomaterial synthesis, device fabrication, optical and transport measurements, we aim to understand the fundamental and technical aspects of these material systems for new quantum device applications.","domain":"optical_engineering"}
{"url":"https://foleyhoag.com/news-and-insights/news/2022/april/foley-hoag-represents-multi-camera-3d-vision-company-nodar-in-series-a-funding-b5427444cfcccb7e1d002792477e6b5b/","date":"2022-12-07T10:54:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711151.22/warc/CC-MAIN-20221207085208-20221207115208-00568.warc.gz","language_score":0.9042016863822937,"token_count":219,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__182578473","lang":"en","text":"Foley Hoag LLP represented NODAR Inc., a maker of 3D vision software for autonomous vehicles, in a $12 million Series A funding led by global venture capital firm New Enterprise Associates with participation from existing investor Rhapsody Venture Partners. The funds will be used for research and development, and further productization of NODAR's core technology, as well as expanded sales and marketing initiatives.\nFounded in 2018, NODAR is a provider of camera-based 3D vision technology and is a crucial safety component in the development of ADAS and autonomous vehicles, bringing safety, advanced performance, and cost-effectiveness to the automotive market. NODAR's award-winning 3D vision platform, called Hammerhead, delivers reliable, ultra-precise, and real-time 3D sensing at a ultra-long-range (up to 1000 meters), providing better-than-LiDAR 3D data at the price point of camera technology.\nFoley Hoag attorneys Sara Mattern and Tiana Walden represented NODAR in the funding round.","domain":"optical_engineering"}
{"url":"https://membermarks.com/products/zeiss-anti-fog-wipes-100-ct","date":"2021-02-26T07:24:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178356232.19/warc/CC-MAIN-20210226060147-20210226090147-00142.warc.gz","language_score":0.9456756711006165,"token_count":111,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__35987819","lang":"en","text":"ZEISS Anti-Fog Wipes (100 ct.)\nThese Anti-Fog Wipes are made by ZEISS, the industry leader in optical lens cleaning. They are suitable for all glass and plastic eyeglasses and sunglasses (particularly effective for high quality, coated precision lenses). They are safe for sports and safety goggles, plus other optics including cameras, binoculars, and microscopes. The wipes are individually wrapped so you can easily stash some at home, at work, in the car or anywhere else you might need them.","domain":"optical_engineering"}
{"url":"http://jaspervcff781.blogminds.com/two-important-items-individuals-do-not-know-about-lasik-eye-surgical-operations-5356836","date":"2019-01-19T18:54:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583680452.20/warc/CC-MAIN-20190119180834-20190119202834-00119.warc.gz","language_score":0.9514550566673279,"token_count":869,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__150251074","lang":"en","text":"Two Important items Individuals Do Not Know About LASIK Eye Surgical OperationsThe eye can be examined with relative ease regarding both its function and its structure. A functional assessment consists of the ability to relocate the orbit and the response of the pupil to light and accommodation.\nThe function of the eye might be tested in a number of methods. The patient may be asked to recognize illuminated letter or items of varying sizes on what is called the Snellen chart.\nConversely, the evaluation of the structural part of the eye may be made in several ways. Tension within the eyeball is measured by a \"tonometer.\" In certain illness, specifically in glaucoma, the stress in the eyeball is increased markedly.\nIt ought to be well remembered that a patient with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a repercussion. The look of the eye can signal the patient and the doctor to difficulties in some disturbances of other parts of the body even prior to other signs present themselves.\nOne's reliance on sight is stressed when one deals with a temporary or possible long-term loss of this vital sense. When restorative procedures are looked for, certain forms of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some individuals are bothered with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to encourage decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this kind of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely changed. This can try this out be done utilizing an \"excimer laser.\"\nThe main function of this surgery is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there Go Here are still disadvantages that people should know. Most likely, the primary reason that this kind of eye surgical treatment has become well accepted is since many of its cases had been successful.\nNevertheless, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate portions of the eye, many people say that the operation can be very risky.\nTo puts it simply, a easy mistake might nearly trigger an person's life time blindness. It is essential to consider numerous aspects prior to choosing whether LASIK eye surgery is the right corrective measure one has to go through.\n2. It is not a perfect treatment\nLASIK eye surgical treatment might fix your vision but it does not necessarily indicate that it can give you a ideal vision. Even if analytical reports show that 70% of the clients may have 20/20 vision, this does not necessarily indicate they have perfect vision.\nProvided all these things, it can be deduced that, check my reference in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical treatment the way most people see it\nAlternatively, the examination of the structural part of the eye might be made in several methods. It should be well remembered that a patient with an eye problem might have other issues. Often other physical conditions are primary and affect the eye as a effect. The look of the eye can inform the patient and the doctor to problems in some disturbances of other parts of the body even before other symptoms provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.tajima-direct.com/","date":"2023-09-29T15:50:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510520.98/warc/CC-MAIN-20230929154432-20230929184432-00269.warc.gz","language_score":0.8789717555046082,"token_count":971,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__76792850","lang":"en","text":"Start Here for New Lenses:\nQuick and Easy Lens Replacement\n1. Identify your frames\nSend them to us\nfor a custom lens replacement\n2. Choose new lenses\nPolarized Sunglass Lenses,\nPrescription Polarized Sunglass Lenses,\nPrescription Clear Lenses,\nPrescription Transitions Lenses\n3. Place your order\nReceive the lenses for your own installation*\nor send them in for our experts to install\n*Note: All prescription orders and\nsome frames must be sent in\nSustainably Focused. Promoting a Circular Economy.\nBy choosing to replace and upgrade your favorite eyewear with Tajima Direct Lenses,\nyou can reduce the impact you have on the planet by keeping your current frames out of the landfill.\nBy choosing to replace and\nupgrade your favorite eyewear\nwith Tajima Direct Lenses,\nyou can reduce the impact you have\non the planet by keeping your\ncurrent frames out of the landfill.\nCan I get custom lenses for my own frames?\nYes, you can get new sunglass lenses or prescription lenses custom-made for any frame you already own. You can search for your frame in our database to have the lenses shipped to you or send them to us to have our experts custom make and install them for you.\nHow much does it cost to put new lenses in old frames?\nIt costs $99 to get new polarized lenses put into any frame. Prescription lenses range from $249-$349 for clear, $325-$425 for polarized sun, and $375-$495 for light-adaptive Transitions lenses.\nCan I replace the lenses in my sunglasses?\nYes, you can get new lenses for any pair of sunglasses through Tajima Direct. It costs $99 for any of our polarized lens colors to be put into any frame.\nCan I get new prescription lenses in any frame?\nYes, you can get new prescription lenses custom-made for any frame. Tajima Direct has options for clear Rx lenses, polarized sunglass Rx lenses, or light-adaptive Transitions Rx lenses. Available in Single Vision or Progressive.\nWhy should I replace my lenses?\nIf your frames are in good shape, you should consider replacing your lenses to (1) Do your part for our planet by reusing frames you already have instead of adding them to the landfill. (2) Save money by avoiding spending more on a full new pair. (3) Upgrade your lens quality as Tajima lenses will be superior than your originals. (4) Extend the life of your favorite frames. Give yourself a new look with a different lens color or match your originals to keep the same style.\nWhy are Tajima Lenses the best in the industry?\nThere are many elements that go into crafting high quality lenses, specifically lens materials, coatings, and lens designs (for Rx lenses). We only offer one flat fee in each of our lens offerings that comes standard with the very best in all of those categories. We also possess unique patented lens technology that creates the world's sharpest polarized & prescription lenses. Learn more on our lens technology page.\nWhere is Tajima Direct located\nOur lenses are custom cut, and orders are processed in our state-of-the-art lab in Southern California, United States.\nWhen you send in your glasses for new lenses, they will go to our lab in Southern California.\nOur polarized lenses are originally made in our lens making facility in Tajima, Japan.\nWhat is the process for replacing my lenses?\n1. Identify your frame or go for a custom lens replacement.\n2. Select your lenses (clear vs. sunglass, prescription or not, colors, etc).\n3. Add to cart and place your order.\n4. If you identify your frame, you can receive the lenses for your own installation with the help of our video tutorial.\nIf you went for a custom lens replacement or opted to have us do the installation, we'll email you a shipping label or ship you a box to send us your glasses, make and install your new lenses, then ship them back to you.\n*All prescription lens replacements must be sent in*\nHow long does it take to get new lenses?\nNon Prescription Lenses take 2-4 business days.\nPrescription Lenses take 7-10 business days.\nWhat is Tajima Direct’s return policy?\nIf you’re not 100% satisfied with your new lenses, we’ll give you a full refund with free return shipping. You have 30 days from when you receive your new lenses to claim your return.","domain":"optical_engineering"}
{"url":"https://austlawpublish.com/criminology/your-question-how-is-light-used-in-forensic-science.html","date":"2021-09-21T03:02:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057131.88/warc/CC-MAIN-20210921011047-20210921041047-00588.warc.gz","language_score":0.9134632349014282,"token_count":963,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__219133471","lang":"en","text":"Ultraviolet (UV) light technologies are used for multiple purposes in forensic investigations, including authenticating paintings and other fine art, authenticating signatures, analyzing questioned documents , illuminating latent fingerprints at crime scenes and trace evidence on clothing, analyzing ink stains, and …\nHow do forensic scientists use light to collect evidence?\nThe primary application of a Forensic Light Source is for enhancing the detection of latent fingerprints. The use of fluorescent enhancement processes that compliment a light source greatly increases the types of surfaces from which a latent fingerprint can be detected.\nHow important is light in forensic photography?\nIt is most important for forensic photographers to understand the physiological changes that take place during a skin injury. These changes from a normal state to an injured state to a healing state permit us to differentiate among the contusions illuminated by light sources of various wavelengths.\nWhat is ultraviolet light used for in forensics?\nUltraviolet (UV) light allows investigators and forensic researchers to examine clues and recover evidence that could not have been previously detected. UV light provides more detail and contrast to an injured area, including bite marks, than standard lighting techniques.\nWhat are the forensic light sources?\n- Forensic Light Sources.\n- Reflective Ultra-Violet Imaging System [RUVIS]\n- Fingerprint imaging systems and software.\n- Automated Fingerprint / Palmprint Identification Systems [AFIS/APIS]\n- Raman microscopes.\n- X-Ray Fluorescence.\nDoes female discharge glow under black light?\nThe answer is yes, and no. Female discharge is not as bright under a blacklight as come. Because of the particular chemical composition male bodily sexual fluid is the brightest. As for female fluids, unfortunately, we can only say that it’s not going to glow as bright.\nWhat color is blood under UV light?\nBeneath a black light, blood turns black, unless sprayed with luminol which gives it a blue-glow. Saliva, semen and urine also glow when hit with a black light. Most biological fluids contain fluorescent molecules to help them glow.\nDoes lighting matter in pictures?\nLighting is a key factor in creating a successful image. Lighting determines not only brightness and darkness, but also tone, mood, and atmosphere. Therefore, it is necessary to control and manipulate light correctly in order to get the best texture, vibrancy of colour, and luminosity on your subjects.\nWhat are the 3 types of photographs that need to be taken at a crime scene?\nTo accomplish this, all crime scene photography consists of three basic types of photographs: overall, mid-range, and close-up.\nWhich light is used in photography?\nThe main sources of light for photography are: Daylight, which varies with the weather and the time of day. Different techniques are necessary to take best advantage of bright sunshine and an overcast evening. Continuous artificial light, which may be normal lighting, or produced by special photoflood lights.\nWhat color is urine under black light?\nUrine fluoresces as a pale yellow color. The best way to see urine under a blacklight is to wait until evening when it is dark.\nHow much UV light is in sunlight?\nMost of the natural UV light people encounter comes from the sun. However, only about 10 percent of sunlight is UV, and only about one-third of this penetrates the atmosphere to reach the ground, according to the National Toxicology Program (NTP).\nWhat will a UV light show?\nThe lights cause materials such as bacteria, urine, seminal fluids and blood, to “fluoresce,” so that the naked eye can detect them. Typically, UV lights are used to test surfaces especially when there is a disease outbreak or any sudden increase in occurrences of a specific disease at a particular time or place.\nWhat is light in forensic?\nA forensic light source is a crime scene investigator’s and lab technician’s tool for enhancing observation, photography and collection of evidence including latent fingerprints, body fluids, hair and fibers, bruises, bite marks, wound patterns, shoe and foot imprints, gun shot residues, drug traces, questioned …\nDoes blood glow under UV light?\nYou see, blood does not fluoresce by applying UV or visible blue light. … Although blood does not fluoresce, certain other physiological fluids will. UV alternate light sources can reveal the following: seminal fluid, saliva and urine stains.\nWhat light can detect blood?\nOne very easy and quick way to detect blood is to use UV light. Reduce the risk of collecting unnecessary stains By using ultraviolet light it is possible to do an effective and quick check for possible bloodstains.","domain":"optical_engineering"}
{"url":"http://leta9022ezsblog.mybjjblog.com/2-points-individuals-do-not-really-figure-out-regarding-lasik-eye-procedures-5424118","date":"2019-01-19T19:12:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583680452.20/warc/CC-MAIN-20190119180834-20190119202834-00029.warc.gz","language_score":0.9524868130683899,"token_count":888,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__78546259","lang":"en","text":"2 Points Individuals Do Not Really Figure Out Regarding LASIK Eye ProceduresThe eye can be taken a look at with relative ease as to both its function and its structure. A functional assessment consists of the ability to relocate the orbit and the reaction of the student to light and accommodation.\nThe function of the eye might be evaluated in a number of methods. The patient might be asked to identify illuminated letter or objects of differing sizes on exactly what is called the Snellen chart.\nOn the other hand, the evaluation of the structural part of the eye may be made in several methods. Stress within the eyeball is determined by a \"tonometer.\" In particular diseases, specifically in glaucoma, the tension in the eyeball is increased significantly.\nNevertheless, it should be well remembered that a client with an eye issue may have other issues too. Frequently other physical conditions are primary and impact the eye as a repercussion. The look of the eye can notify the doctor and the patient to difficulties in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nOne's dependence on sight is emphasized when one faces a short-term or possible long-term loss of this crucial sense. For this reason, when restorative steps are sought, particular kinds of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are bothered with that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to motivate decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this type of surgery, one's vision is corrected completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the main reason that this kind of eye surgical treatment has actually become well accepted is because the majority of its cases had been successful.\nhis explanation Nevertheless, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgery involves the operation of the retina, which is among the most delicate portions of the eye, many people state that the operation can be extremely dangerous.\nSimply puts, a simple mistake could almost cause an individual's life time great post to read blindness. It is crucial to think about lots of elements prior to choosing whether LASIK eye surgical treatment is the best restorative procedure one has to undergo.\n2. It is not a ideal procedure\nLASIK eye surgical treatment may fix your vision but it does not necessarily indicate that it can provide you a perfect vision. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily mean they have ideal vision.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not always internet be the ideal eye surgery the way the majority of people see it\nConversely, the examination of the structural part of the eye may be made in numerous methods. It needs to be well kept in mind that a client with an eye problem might have other issues. Typically other physical conditions are primary and affect the eye as a consequence. The look of the eye can alert the physician and the patient to troubles in some disruptions of other parts of the body even prior to other symptoms present themselves.\nLike its concrete counterpart, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://haneul246.wixsite.com/ajou-lmbs/single-post/2018/04/09/Development-nanoparticles-into-new-formulations-for-various-applications","date":"2020-04-09T23:39:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371880945.85/warc/CC-MAIN-20200409220932-20200410011432-00469.warc.gz","language_score":0.9519947171211243,"token_count":146,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__192531363","lang":"en","text":"Fluorescence intensity is detected in the epidermis and dermis as shown in the picture above. It shows nanoparticles can penetrate the skin. By Investigating new formulation, nanoparticles can be applied to further applications through topical delivery. Topical delivery has the advantage of reducing the dose of drug and minimizing side effects.\n<Example for application>\nIt is expected to be applicable to joint-related disease such as arthritis by applying nanoparticles to joints. To confirm if nanoparticles pass through the skin to the joints, nanoparticles were applied to the knee of mouse. As you can see from the above figure, the fluorescence intensity is detected at cartilage and can be applicable to joint-related disease as expected.","domain":"optical_engineering"}
{"url":"https://marketingelectrician.com/2023/11/20/fiber-optics-revolutionizing-the-world-of-telecommunications/","date":"2024-04-15T19:11:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817014.15/warc/CC-MAIN-20240415174104-20240415204104-00395.warc.gz","language_score":0.9203680157661438,"token_count":497,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__51827480","lang":"en","text":"Do you ever wonder how you get to access the internet or watch TV shows with just a click of a button? It's all thanks to the marvels of fiber optics. Fiber optic cables have silently revolutionized the world of telecommunications, transforming the way you transfer data, voice, and video. This blog will explore the many advantages of fiber optic technology, its applications, and the crucial role it plays in this constantly evolving digital era.\nUnmatched Speed and Bandwidth\nFiber optic technology tops the list when it comes to speed and bandwidth. Unlike traditional copper cables, which use electrical signals to transfer data, fiber optics use light pulses through glass fibers. This fast and efficient connectivity enables users to enjoy blisteringly fast internet speed and reliable connections. Fiber optics technology provides high-quality video streaming, fast data transfer, and uninterrupted VoIP voice calls.\nReliability and Durability\nFiber optic cables are incredibly reliable and durable compared to their copper counterparts. Due to their robustness, fiber optic cables are less vulnerable to electrical interference and radio frequency interference. They also offer better resistance to inclement weather and natural elements such as moisture and temperature fluctuations. Therefore, fibers are less prone to damage or disruption, making them ideal for long-distance and underwater communications.\nIn addition to speed and reliability, fiber optic technology takes security to a whole new level. The inability of traditional copper cables to prevent eavesdropping or unauthorized access has always been a significant vulnerability. Fiber optic cables, on the other hand, offer greater security, as they do not emit signals that can be easily intercepted. These cables also have tighter encryption standards and are much harder to tap, making fiber optics technology an excellent tool for private and government institutions.\nApplications in Industries\nFiber optic technology has far-reaching applications and is widely used in multiple industries, from telecommunications, healthcare, and transportation to data storage and security. Health institutions, for example, use fiber optics for non-invasive medical surgeries, while the automotive industry uses fiber optic technology in braking systems. In addition, fiber optics are highly demanded in the music industry, providing high-quality recording and reproductions of sound.\nFiber optic technology has transformed the way you communicate and revolutionized the world of telecommunications, providing fast, reliable, and secure communication. Its unmatched speed, bandwidth, durability, and security have made it a favorite of industry experts and consumers alike.\nContact a professional to learn more about fiber optics.","domain":"optical_engineering"}
{"url":"https://www.protolabindia.com/illuminated-keyboards.html","date":"2020-11-29T23:14:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141203418.47/warc/CC-MAIN-20201129214615-20201130004615-00179.warc.gz","language_score":0.8921273350715637,"token_count":272,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__200972192","lang":"en","text":"|We are leading Manufacturer and Supplier of Electroluminescent Keyboard.|\n|Minimum Order Quantity||25 Piece|\n|Color||As per Requirement|\n|Keyboard Type||With Wire|\n|Size||As per Requirement|\nWe provide a wide range of Electroluminescent Lamps (EL lamps), which is used to convert electrical energy into lighter luminescence. Generally, the term luminescence is generally associated with solids that is used to generate light. This type of technology is used in an electric field (voltage), where it is applied to a thin phosphor layer to produce light. The typical lamp consists of light emitting phosphor sandwiched between two conductive electrodes (one of the electrodes is optically clear allowing light to escape). Further, an AC voltage is applied to the electrodes in the electric field, which can cause the phosphor to rapidly charge and discharge, resulting in the emission of light during each cycle. Since, the number of light pulses usually depend on the magnitude of applied voltage, the brightness of EL lamps can generally be controlled by varying the operating voltage and frequency. We provide an innovative service,which can give that special touch to the EL lamp of processing the personal memories as a transitive on polycarbonate that provides the subtle soft touch forever to the memories.","domain":"optical_engineering"}
{"url":"https://www.leylandopticians.com/glasses/","date":"2019-10-17T03:30:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986672548.33/warc/CC-MAIN-20191017022259-20191017045759-00027.warc.gz","language_score":0.9356405138969421,"token_count":477,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__133537440","lang":"en","text":"Top Brands, Top Quality Lenses\nOur lenses only come from leading manufacturers that have pioneered and introduced the leading optical products that we take for granted today.\nThese are 100% UV absorbing which eliminates a known contributor to cataract and macular degeneration in older age.\nThey adjust to light – darkening when outdoors and clearing when indoors or in the dark.\nTRANSITIONS™ are the premier photochromic lens and are now in their 7th generation of development plus they have recently become available in an EXTRActive darker version. Ask about ‘Love them or Leave them’ if you are unsure you will like them.\nTransitions Brown Transitions Grey Transitions Green Transitions XTRActive\nYou can have TRANSITIONS™ in single vision, bifocal or VARILUX™ lenses and in high index designs for lighter, thinner lenses. Available in most prescriptions.\nVARILUX™ was the first varifocal lens and are still the most innovative maker of this type of lens.\nWe trust GENUINE VARILUX™ lenses to provide you with the correct solution whatever you visual requirements whether for general use, occupation requirements or sport. They are available for shallow or deep frames, in rimless or full frames, TRANSITIONS™ or polaroid, and in a variety of index to give you the thin, light and comfortable frames you deserve.\nBIFOCAL/TRIFOCAL – unlike varifocals, these lenses have a division in the lens that you can see. But they are worn happily by millions of users. While varifocals have made huge developmental strides in the last twenty years, bifocals are still the preferred choice for many. Unlike varifocals, they don’t have a middle vision zone which is fine if you don’t use a computer much. Bifocals lenses are available in most material and tint options. Trifocals do provide a far, middle and near viewing zone and give good all vision at all distances. Often people are surprised to hear of trifocals but wearers like them and adjust to them easily. I still think of them as an essential part of the lens armoury even though you’d not find them in most ‘popular opticians’.","domain":"optical_engineering"}
{"url":"http://www.camlogic.com/hardware/shapegrabber","date":"2013-05-21T14:04:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368700074077/warc/CC-MAIN-20130516102754-00088-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8953170776367188,"token_count":419,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__130455027","lang":"en","text":"The ShapeGrabber 3D laser inspection and measurement systems are ideal for measuring complex shapes that are otherwise too time consuming, costly, or simply impossible to measure. They are both very fast and very easy to use in comparison to traditional Coordinate Machines (CMMs).\nTheir 3D scanning systems utilize the accuracy and speed of lasers to precisely render every feature of an object into a three dimensional model. The model can then be inspected for defects, further augmented or reproduced as is. Regardless of how complex the object's shape may be, our laser scanners are guaranteed to capture every metric. Applications for our scanning systems can range from part inspection to prototyping to critical component reproduction. If your requirements call for precise shape modeling, ShapeGrabber is the laser scanning solution that will meet your needs.\nAutomated 3D Scanners\nShapeGrabber's Ai Series automated 3D laser scanners can bring speed, accuracy, ease-of-use and complete coverage to 3D laser inspection systems. Using multiple motion axes, our laser scanners eliminate the need for software alignment and registration and ensure fast, accurate results. Our automated laser scanning solutions are ideal for situations in which speed and ease of use are important.\nFast, accurate scanning enables manufacturers to improve product quality and compliance without slowing down production. With a ShapeGrabber laser scanner, there is no need to write special code to scan each object. And, it is fast and simple to scan the object without complicated, time consuming orientation and alignment processes. Our laser scanning systems yield a significant reduction in the time required to completely scan a shape, leading to a reduction in the cost associated with executing the job.\nHere are the laser solutions we offer:\nPlease sign up for our newsletter\nEnjoy compelling images from a wide array of industries from around the globe. Using Siemens PLM Software products, customers tackled issues of aesthetics, complexity, clarity and uniqueness in delivering absolute excellence.\nThis month's featured image comes from Apache Sprayers.\nCAM Logic, Inc.\n38 S. Washington St.\nOxford, MI 48371","domain":"optical_engineering"}
{"url":"https://deluxefilm.no/butikk/produkt/led-lys/visionsmith/relamp/relamp-led-300/","date":"2019-08-26T01:17:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027330913.72/warc/CC-MAIN-20190826000512-20190826022512-00383.warc.gz","language_score":0.7902336716651917,"token_count":354,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__86785683","lang":"en","text":"Like a 150W HMI\nThis ReLamp LED fits the Arri 300-Plus Fresnel. It dims the same as a halogen lamp on an AC dimmer of your choice: even a $10 ‘lamp dimmer’ works great.\nOne of your favorite little location lights is now a heat-free daylight source.\nThe upgraded light draws only 50 watts and supports external legacy AC dimmers. It focuses from 20 to 40 degrees using the fixture’s existing mechanism. It produces high-quality, daylight-balanced light with smooth, natural, spectral distribution – 94 CRI for Daylight, 98 CRI for Tungsten.\nThe LED Fresnel Solution\n- Ultra-High Quality: 98CRI – matches Tungsten or Daylight without correction\n- Less than half the cost of any comparable LED Fresnel solution\n- Brighter: 50W LED is brighter than a 300W Halogen\n- Full-range dimming on your existing AC Dimmers – without color shift!\n- Flicker-Free at any frame-rate\n- Safe: No burns, no gloves, no fire hazard, does not explode like Halogen\n- No heat on subject or talent\n- Green: Easiest way to make your business sustainable\n- Reliable: Fully self-protected for a very long life\nIn a few minutes, your upgraded Fresnel will:\n- Only draw 50 watts\n- Cast no heat on the subject\n- Dim without color shift on the same dimmers you are using now\n- Be brighter than the stock Tungsten fixture\n- Be the highest-quality, Daylight 300 LED Fresnel available\n- Be 1/4 the cost of any comparable LED Fresnel","domain":"optical_engineering"}
{"url":"https://honpe.com/tecshow/pattern-laser-engraving","date":"2024-02-29T07:30:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474795.48/warc/CC-MAIN-20240229071243-20240229101243-00686.warc.gz","language_score":0.8649468421936035,"token_count":590,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__139399465","lang":"en","text":"Pattern laser engraving\nis Laser Engraving?\nUsing a powerful laser beam, laser carving\nis a precision technique that etches or carves various materials such as wood,\nmetal, glass, plastic, and fabric with intricate logos, text, designs, and\npatterns that are readily visible or tactile.\nDoes Laser Carving Work?\nUtilizing sublimation - the transition of a\nmaterial from the solid to the vapor state, without passing through liquid -\nlaser engraving works by using a powerful beam of energy to vaporize the\nmaterial's surface. The laser module, mounted on a moving mechanism, travels\nacross the material, raising its temperature to the point of vaporization and\nthus engraving the desired design onto the material's surface.\nof Laser Carving\nLaser engraving offers numerous advantages\nover traditional engraving methods, including:\nPrecision: Laser engraving yields superior\nprecision and accuracy, thereby enabling one to engrave intricate designs on\nmaterials. Moreover, the laser beam can be steered precisely through the\nengraving software, rendering it perfect for engraving minuscule yet intricate\nSpeed: Laser engraving is the perfect\nsolution when rapid production or swift completion of numerous designs is\nrequired; the whole process is accomplished quickly, often taking only a few\nVersatility: Laser engraving offers a high\ndegree of precision for inscribing intricate designs, serial numbers, symbols,\nand other information onto various materials such as wood, metal, glass,\nplastic, and many others.\nDurability: Through laser engraving,\nlong-lasting, impervious markings can be achieved, making it perfect for\nobjects which will endure constant use or external elements.\nNon-contact: Through laser engraving, no\ncontact between the material being engraved and the engraving machine is made.\nThis process decreases the chance of any potential harm being done to more\nfragile objects, making it the ideal choice for objects that cannot be engraved\nwith traditional techniques.\nCost-effective: Cost efficiency and\nhigh-speed production capabilities make laser engraving an ideal choice for\nlarge-scale projects. This process is much more cost-effective than traditional\nCustomizable: Through the use of laser engraving, individualized designs and inscriptions can be inscribed on an assortment of products, providing immense customization.\nWith over 20-year experience of rapid prototype manufacturing, Honpe is able to perform the pattern laser carving on both metal and plastic prototype surface, which marks the prototype, illustrating the company profile and giving unforgettable impression on consumers. CMF (Color, Material, Finish), including laser engraving, is one of the superior advantages for rapid prototyping in Honpe Technology, from small to large-size prototypes.","domain":"optical_engineering"}
{"url":"http://www.chip-diagnostics.com/","date":"2019-07-19T10:48:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195526210.32/warc/CC-MAIN-20190719095313-20190719121313-00073.warc.gz","language_score":0.8495432138442993,"token_count":449,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__127220491","lang":"en","text":"Chip Diagnostics is developing the microDroplet Fluorescence Detector platform that can enable digital assays without bulky lab equipment\nFormed in 2016, Chip Diagonostics is a diagnostic device company based on David Issadore's groundbreaking research combining microelectronics, microfluidics, and nanomaterials that will enable digital assays with mobile devices.\nDigital assays have enormous untapped potential for disease diagnostics, environmental surveillance, and biosafety monitoring, but are currently confined to laboratory settings due to the instrumentation necessary to generate, control, and measure tens of millions of independent droplets. Chip Diagnostics is developing the microDroplet Fluorescence Detector (µDFD), a mobile compatible device enabling digital assays by using an original microfluidic droplet production process, a high bandwidth of electronics, new sensing technology, and ubiquitously available cloud computing.\nChip Diagnostics' microDroplet Fluorescence Detector (µDFD) is a hybrid microelectronic/microfluidic chip that 'unlocks' droplet based assays for mobile use, recording ultra-sensitive molecular measurements by performing millions of parallel experiments in picoliter droplets.\nCurrent microfludic cell sensors are too slow by 100x to be meaningful in detecting the billions of cells in a sample of blood. Our µDFD platform increases microfluidic droplet production rate by 104x by incorporating thousands of droplet generators onto a single chip and by using on-chip delay lines to perform droplet PCR on >107 droplets/minute.\nOur µDFD platform generates and detects the fluorescence of millions of droplets per second (1000x faster than conventional approaches) only using a cell phone camera. Our key innovation is amplitude modulation of the signal from fluorescent droplets using distinct micro-patterning of the droplet signal, akin to the carrier frequency modulation used in cellular networks.\nThe detection of diseases or pathogen contamination is inherently challenging due to the complex, heterogeneous nature of disease and contaminations. To solve this challenge, our µDFD platform allows measurement of multiple molecular biomarkers for little marginal increase in cost with a sensitivity that matches gold standard technologies.","domain":"optical_engineering"}
{"url":"http://bestpricestore.website/products/havit-hv-ms745-wired-gaming-mouse-usb-optical-2800-dpi-4-led-lights-with-6-button-for-pc-laptop-desktop-computer-mouse-gamer/","date":"2018-01-17T13:11:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084886939.10/warc/CC-MAIN-20180117122304-20180117142304-00393.warc.gz","language_score":0.7038302421569824,"token_count":289,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__111130419","lang":"en","text":"HAVIT HV-MS745 Adjustable 2800 DPI with 4 LED Lights Optical Wired Gaming Mouse for PC and Mac (Black+R\nHAVIT HV-MS745 Wired Gaming Mouse USB Optical 2800 DPI 4 LED Lights with 6 Button For PC Laptop Desktop Computer Mouse Gamer\n1. [Easy to use]:The optical wired gaming mouse is plug and play, no driver needed;\n2. [Adjustable DPI and LED backlits]:4 breathing lighting settings, 800DPI-green, 1200DPI-red,2000DPI-blue, 2800DPI-purple;Light-off mode: long pressing DPI key for 10 seconds\n3. [Professional gaming chip]:Adopting AVAGO 5050 high-end optical gaming engine,designed for gamer;\n4. [High quality material]:Anti-interference magnetic ring can to a large degree guarantees stable data transmitting;\n5. [Strong compatibility]:Compatible with Windows:2000/ME/XP/Vista/7/8/10/MAC/Linux.\nUSD 16.29-18.99/pieceUSD 46.99-61.99/setUSD 18.99/pieceUSD 59.99/pieceUSD 17.99-19.99/pieceUSD 10.99/pieceUSD 27.99/pieceUSD 82.99-109.99/piece","domain":"optical_engineering"}
{"url":"http://rotormind.com/blog/2011/A-Spectrum-Analyzer-on-your-Face/","date":"2023-06-01T04:51:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00266.warc.gz","language_score":0.9331579804420471,"token_count":511,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__70267554","lang":"en","text":"Friday, March 25, 2011\nA Spectrum Analyzer on your Face\nEvery time I see another pal get laser eye correction, I get a little sad. Not only are eyeglasses a tremendous fashion statement, but they are super handy as well. If you wear glasses, you are likely also wearing a handy optical spectral analyzer. Yes, it's true: observed at the right angle, the edge of your glasses works like a prism and refracts incident light into its component spectral colors. In optics this is called \"chromatic aberration\" and it's generally considered a bad thing, but in this case I consider it a feature instead of a bug. Here's an example looking at a mercury discharge lamp (like from a street light) through the edge of my glasses:\nLet's zoom into the colored smudge on the edge of the glasses. See the distinct blue and the green? Those are the spectral lines of mercury!\nHere's a better-resolution spectrum, from http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/atspect2.html\nNote the blue and green lines (and a faint orangeish line not discernable in the glasses).\nHere's a white LED. White LEDs are a mixture of light from a very bright blue LED driving a yellowish phosphor. Early LEDs had a ghastly bluish color but advances in phosphors have made them sometimes hard to tell from more conventional light sources. The giveaway is the bright smear of blue in their spectrum:\nZoomed in, you can clearly see it. The camera only captures it approximately, it's much more obvious in your glasses, try it sometime.\nOne more example, a neon discharge like in small indicator lamps and flicker bulbs. This is a decorative light fixture I made for my dining table.\nZooming into the spectrum, you can clearly see the telltale green and orange spectral lines of neon:\nThese are the spectral lines in higher resolution:\nAs a semi-pro lighting designer, I use this trick all the time to discern what kind of light sources are being used. Try it yourself! It's probably most obvious on magenta light (from theater gels or LEDs), as magenta is a mix of low-frequency red and high-frequency blue light which spreads out nicely. Of course, if you are cursed with perfect vision you will need some equipment for the same results.","domain":"optical_engineering"}
{"url":"http://ijeedc.iraj.in/abstract.php?paper_id=1482","date":"2023-05-30T05:04:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645089.3/warc/CC-MAIN-20230530032334-20230530062334-00196.warc.gz","language_score":0.8613696694374084,"token_count":132,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__193201745","lang":"en","text":"DE-Speckling of Risat-1 Data Using Compressive Sensing theory\nIn this paper, we propose a method for Radar Imaging Satellite (RISAT-1)) image de-speckling with compressive\nsensing (CS) theory. The compressive sensing theory proved that any image can be reconstructed from samples fewer than\nnumber of elements in an image. This technique is tested on single look complex RISAT-1 (MRS and CRS) data set, and\nexperimental results exhibit that our technique is the best in terms of visual quality and de-speckling quality factors.","domain":"optical_engineering"}
{"url":"https://quantum.otago.ac.nz/experiments.html","date":"2023-03-24T19:38:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945288.47/warc/CC-MAIN-20230324180032-20230324210032-00295.warc.gz","language_score":0.8780803084373474,"token_count":623,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__58956953","lang":"en","text":"Our single-atom sensitive optical microscope provides us with a tool to directly investigate quantum processes. Using laser cooled atoms, we exploit the fundamental wave-nature of matter to build an interferometer that uses atoms as the interfering waves. We put each atom into a coherent superposition of different momentum states which then simultaneously traverse the different paths in the interferometer. The sinsitivity of atomic interferometers plays an essential role in many high precision measurements. Watching how small groups of atoms behave when exposed to externally controlled laser pulses gives us new knowledge about the quantum world, that we use to understand complex systems, and for the development of future technologies such as quantum computers.\nOur experiments use an ultracold atom machine that produces atomic gas samples at nanokelvin temperatures - temperatures where the wave nature of particles becomes dominant, and particles separate into two classes that behave socially (Bosons) or anti-socially (Fermions), due to their quantum statistics.\nOur machine can produce Bose-Einstein condensates of Rb-87 atoms as well as quantum degenerate Fermi gases of K-40 atoms. Using laser beams to accelerate clouds of ultra-cold atoms, we can observe collisions between degenerate quantum systems with exquisite resolution.\nQuantum Optics techniques allow quantum states of light and atoms to be controlled and studied using lasers and high quality optical resonators. Quantum states can also be efficiently transferred between atoms and light, setting the scene for quantum information processing, involving storage, retrieval, transmission and computation. Rare-earth atoms such as Lanthanum are essential for consumer electronics, but they also have excellent properties for quantum information processing. We specialise in the application of rare-earth-ion doped solids to quantum information, quantum computing and signal processing optics. Currently our areas of research focus are whispering gallery mode resonators, the optical detection of ultrasound, quantum memories and the generation of entangled light.\nBy utilizing continued total internal reflection, whispering gallery mode resonators can confine light tightly and provide access to strong non-linear interactions even at low input powers.\nOur research focuses on using such resonators to achieve efficient non-linear interactions between far removed frequency ranges, mixing microwave radiation with optical light to generate light of different colour. Such conversion can in principle be perfect and therefore be used in schemes where quantum information of light in the microwave domain can be transferred into the optical domain - opening a route towards future quantum networks. Such high quality resonators can also be used in classical optics where they are used as sensors to detect the smallest changes in the environment.\nThe Centre for Quantum Science is a University of Otago Research Centre hosted by the Department of Physics.\nashton.bradley [at] otago.ac.nz\nniels.kjaergaard [at] otago.ac.nz","domain":"optical_engineering"}
{"url":"https://thanpoker.xyz/the-evolution-of-lens-replacement-surgery-from-concept-to-modern-advancements/","date":"2023-11-30T21:40:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100232.63/warc/CC-MAIN-20231130193829-20231130223829-00886.warc.gz","language_score":0.9096809029579163,"token_count":571,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142851407","lang":"en","text":"Lens replacement surgery has a rich history of innovation and evolution, transforming from a concept to a sophisticated procedure that has revolutionized vision correction. In this article, we explore the journey of lens replacement surgery, from its early beginnings to the modern advancements that have made it a highly effective and widely performed procedure.\nEarly Concepts and Developments\nThe idea of replacing the eye’s natural lens dates back centuries, with early attempts made by pioneers like Sir Harold Ridley. In the 1940s, Ridley introduced the concept of using an artificial lens made of plastic to replace the natural lens after cataract removal. His innovative idea laid the foundation for modern lens replacement surgery.\nIntroduction of Intraocular Lenses (IOLs)\nThe 1960s marked a significant milestone with the introduction of the first intraocular lenses (IOLs). These lenses were initially implanted after cataract removal to restore vision. The concept of IOLs evolved over the years to address various vision issues beyond cataracts, including nearsightedness, farsightedness, and astigmatism.\nAdvancements in Surgical Techniques\nIn the 1970s and 1980s, surgical techniques for lens replacement surgery improved significantly. Phacoemulsification, a technique that uses ultrasonic energy to break up the natural lens for easier removal, replaced the need for larger incisions and more invasive procedures.\nIntroduction of Premium IOLs\nThe 1990s and early 2000s saw the introduction of premium IOLs, such as multifocal and accommodating lenses. These lenses offered patients the possibility of improved vision at multiple distances and reduced dependence on glasses or contact lenses.\nThe integration of laser technology in the 21st century brought further advancements to lens replacement surgery. Laser-assisted procedures allowed for more precise incisions, accurate IOL placement, and reduced reliance on manual techniques.\nPersonalized Treatment Plans\nModern advancements in diagnostic tools, such as optical coherence tomography (OCT) and corneal topography, enable surgeons to create personalized treatment plans. Surgeons can now determine the most suitable IOL power, type, and placement based on each patient’s unique eye structure and visual needs.\nEnhanced Visual Outcomes\nAdvancements in IOL materials and designs have led to enhanced visual outcomes. Premium IOLs, such as extended depth of focus (EDOF) lenses, provide a continuous range of clear vision at different distances, reducing the need for glasses in various scenarios.\nThe evolution of lens replacement surgery is a testament to the relentless pursuit of improving vision correction techniques. From early concepts to modern advancements, the procedure has undergone a remarkable journey that has transformed the lives of countless individuals worldwide. As technology continues to advance, lens replacement surgery holds the promise of even more precise, personalized, and effective outcomes in the future.","domain":"optical_engineering"}
{"url":"http://unicornmfg.com.hk/products2.php","date":"2024-02-22T14:13:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473819.62/warc/CC-MAIN-20240222125841-20240222155841-00536.warc.gz","language_score":0.8211424946784973,"token_count":167,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__204197647","lang":"en","text":"Unlike the conventional liquid crystal twisting technology for TN/STN-LCD, vertically aligned liquid crystal technology offers superior optical performance on contrast ratio and viewing angle over wide temperature range.\nDifferent variant of vertical alignment LCD is offered by Unicorn to meet various applications, including high reliability automotive application:\na) High contrast version offers high contrast ratio up to 2000:1.\nb) Wide view version offers wide viewing angle up to 55o/55o/50o/20o (L/R/T/B) at contrast ratio 200:1, without any color shift and ghost segment when display is viewed off angle.\nc) MCG-PMVA technology offers the LCD product with high contrast & multi color to achieve true color display effect.\nPlease kindly contact our sales person if you have any enquiry.","domain":"optical_engineering"}
{"url":"https://venturingangler.com/2018/10/20/tifosi-optics-launches-enliven-polarized-on-shore-off-shore-color-enhancing-lens/","date":"2023-06-01T11:35:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647810.28/warc/CC-MAIN-20230601110845-20230601140845-00060.warc.gz","language_score":0.9042109847068787,"token_count":467,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__108722136","lang":"en","text":"From Tifosi Optics:\nEliminate Glare. Enliven your Vision.\nThink of sunglasses as your music player. Sunglasses have one control feature, they turn down the volume of brightness of your environment. Just as an added bass and treble control to your music player adds more depth, Enliven lens technology adds bold contrasts and fine details to enhance the visual experience.\nEnliven™ Color Capture technology adjusts the wavelengths of light that matter most; making greens, blues, and reds pop with definition. Enhanced contrast reveals changes in surfaces and maximizes color separation to enhance depth perception. The added contrast and glare reduction of polarization makes it easier to distinguish objects in the sky, ground and water.\nTwo versions of Enliven Polarized are available. Enliven On-Shore™ is designed for fishing on lakes and rivers. It filters more green light to enhance contrast and blocks glare to assist in seeing targets where there is reflection of green light from grass or water. Finally, a green mirror is added to reflect glare and additional green light so that contrast and visual acuity is enhanced.\nEnliven Off-Shore™ is designed for fishing on the ocean. It filters out the high energy of blue light to protect your eyes and avoid eyestrain, giving many hours of wearing comfort. It enhances color separation and blocks glare on the ocean surface to allow for better visibility of targets under the water. A final blue mirror is added to the lens to reflect strong blue light, glare and additional blue light to enhance contrast and visual acuity.\nEnliven lens technology is available in a wide range of already popular Tifosi frame styles including Crit, Dolomite, Vero and the new Amok, each at $79.95 MSRP.\nTifosi is the word for Super-fan. That is exactly who we are and for whom we make our eyewear. Our mission is to provide technically advanced eyewear to enthusiasts of all sports and outdoor activities. We design, test, and torture our product to enhance your sport whether you’re running a 5k, riding your first century or playing 18 holes on Sunday. Tifosi defines us. We are enthusiasts about our product, our sport, and our fun.","domain":"optical_engineering"}
{"url":"https://www.cbsesamplepapers.info/cbse/cbse-class-10-science-practical-skills-refraction-through-prism","date":"2024-04-20T11:00:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00256.warc.gz","language_score":0.9049984216690063,"token_count":4940,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__163840800","lang":"en","text":"CBSE Class 10 Science Practical Skills – Refraction Through Prism\nBASIC BUILDING CONCEPTS\nPrism is a homogeneous, transparent, refracting material (such as glass) enclosed by two inclined plane refracting surfaces at some fixed angle called refracting angle or angle of the prism.\nIt has two triangular bases and three rectangular lateral surfaces which are inclined to each other as shown in the given figure. It has six vertices and nine edges. Since base of this prism is in triangular shape, it is called a triangular prism.\nYou can also download Class 10 Science NCERT Solutions to help you to revise complete syllabus and score more marks in your examinations.\nIn the given figure of prism:\n- Triangular bases are PQR and TUS.\n- Three rectangular lateral surfaces are PQUT, PTSR, QRSU.\n- Six vertices are P, Q, R, S, T and U.\n- Nine edges are RS, PT, QU, UT, ST, US, QR, QP and RP.\nSome Important Facts About The Triangular Prism:\n- It is a polyhedron, with two parallel faces called bases. The other faces are always parallelograms. It is named by the shape of its base.\n- An oblique ray of light suffers two refractions on passing through a triangular prism and hence, deviates through a certain angle from its original path.\n- The angle between the incident ray and emergent ray is called the angle of deviation.\n- Angle of deviation depends upon the\n- angle of prism,\n- angle of incidence, and\n- nature of material of the prism.\n- When angle of incidence increases, angle of deviation decreases, till it becomes minimum at a particular angle of incidence. The minimum value of the angle of deviation for a triangular prism is called the angle of minimum deviation.\n- The refracted ray becomes parallel to the base of the prism under the minimum deviation position.\n- When a beam of white light is incident on one of refracting surfaces of the prism, it splits into a band of seven colours. This phenomenon exhibited by the prism is called dispersion of light. The band of coloured components of a light beam is called its spectrum.\n- Glass prism shows different refractive indices for different colour components of white light due to varying speed of different colours. Therefore, different colours emerge out through the prism along different directions and becomes distinct.\n- The order of colours from the base of the prism is Violet, Indigo, Blue, Green, Yellow, Orange and Red. It can be learnt by the word VTBGYOR.\n- Violet colour deviates through the maximum angle and red colour deviates through the minimum angle.\n- The combination of two inverted prisms placed together shows the recombination spectrum of white light.\nTo trace the path of the rays of light through a glass prism.\nA drawing board, few drawing pins or cello-tape, a glass prism, a few sharp pointed alpins, three sheets of white paper, a measuring scale, a pencil and a protractor.\n- Let ABC be the principal section of a glass prism of refractive index ‘n’ The angle ‘A’ is the refracting angle of the prism.\n- When a ray of light PQ from rarer medium (such as air) is incident on a refracting surface AB, it gets refracted and bends towards the normal to the plane of face AB. Here, ray of light is entering from air to glass and refracted along QR.\n- At the second surface AC, the refracted light ray QR has entered from glass to air, i.e. denser to rarer medium and emerges out, along RS as it has bent away from the normal i.e. bends towards the base of prism shown in the adjacent figure.\n- In the figure:\nPQ – Incident ray\nQR – Refracted ray\nRS – Emergent ray\n∠A – Angle of prism\n∠i – Angle of incidence\n∠r – Angle of refraction\n∠e – Angle of emergence\n∠δ – Angle of deviation\nThus, the incident ray PQ suffers two refractions in passing through the prism.\n- Take a sheet of white paper and fix it on the drawing board with the help of a drawing pins or cello- tape.\n- Place a glass prism along its triangular base at middle on the paper. Mark the boundary ABC of the glass prism and then remove the prism.\n- Draw a thin dotted line XY along one of the refracting surfaces (say AB) as shown in the figure given below.\n- Draw a normal NFN1, i.e. perpendicular to line AB at F. Also, draw a line EF making an angle 30° to the normal. EF will act as the incident ray.\n- Place the glass prism back to its original position ABC.\n- Fix two alpins P1 and Q1 on line EF vertically by gently pressing their heads with thumb into the drawing board about 6 cm apart from each other.\n- Look the images of P1 and Q1 from the other refracting face AC. The images of pins P1 and Q1 appear to be at I1 and I2.\n- Fix two more alpins P2 and Q2 vertically such that the feet of the pins P2 and Q2 appear to be on the same straight line as the feet of the images I1 and I2 respectively. Confirm it by moving the head slightly to either side while looking them. All the pins P2, Q2 and image of P1 and Q1 would appear to move together if they are on the same straight line.\n- Remove the prism and all alpins. Mark the position of feet P2 and Q2 and also P1 and Q1 [like Θ],\n- Join the pin pricks P2 and Q2 and produce P2Q2 so that it meets the refracting side AC of the prism boundary at G. The line HG represents the path of the emergent ray.\n- Join F and G. The line FG represents the path of the refracted ray.\n- Repeat the experiment on different paper sheets by taking different values of angle of incidence, viz. 35°, 45°, 50° and 55°.\n- The ray of light entering from air to glass at the first refracting surface bends towards the normal after refraction. At the second refracting surface, the ray of light entering from glass to air bends away from the normal.\n- Thus, the ray of light suffers two refractions on passing through a prism and hence deviates through a certain angle from its original path.\nEFGH represents the path of light through the prism as shown in the figure drawn.\n- The refracting faces of the glass prism should be smooth, transparent and without any air bubble or broken edge. It must be a triangular.\n- Use a sharp pencil to draw boundary of the prism and rays of light.\n- The alpins should have sharp tip and should be fixed exactly vertical to the plane of the paper.\n- The distance between the alpins should be atleast 6 cm. It provides the greater accuracy in finding the direction of incident ray and refracted ray.\n- Always adjust the feet and not the heads of alpins to lie along the same straight line.\n- The pin pricks should always be dotted and circled.\n- The angle of incidence should be in between 30° and 60°.\n- Proper arrows should be drawn to indicate direction of the incident ray, the refracted ray and the emergent ray.\nSOURCES OF ERROR\n- The feet of alpins may not lie on the same line.\n- The alpins may not be exactly vertical.\n- The pin pricks may not be marked properly.\n- The lines which indicate the path of ray of light may not be drawn with accuracy.\nTo measure the angle of deviation.\n- The student will follow the following procedure in continuation with the previous one (steps 1 to 12).\n- Draw a normal N2GN3 to the refracting surface AC at point G.\n- Mark the angle of incidence (∠i), angle of refraction (∠r) and angle of emergence (∠e) as shown.\n- Now, produce EF to M and GH to O which will meet at point J.\n- Measure ∠GJM as the angle of deviation ∠δ.\n- Repeat the experiment for different values of angle of incidence, viz. 35°, 40°, 45°, 50° and 55° and measure corresponding angle of deviation each time. Record these observations in an observation table.\n- Plot a graph between the angle of incidence (i) on x-axis and angle of deviation (b) on y-axis.\n- As the angle of incidence increases gradually, the angle of deviation decreases, it becomes minimum and further increases with the increase in the angle of incidence.\n- From the graph, the angle of minimum deviation, b = ………..°\nWhat is a triangular prism?\nIt is a piece of homogeneous, transparent refracting material enclosed by three rectangular refracting faces and two triangular bases.\nWhat is meant by the angle of prism?\nIt is the angle of inclination between the two rectangular refracting faces of the prism.\nWhat do you mean by the refracting edge of the prism?\nIt is the edge where two rectangular refracting faces of the prism meet.\nWhat is the angle of refraction?\nThe angle between the refracted ray and the normal at the first refracting face of the prism is called the angle of refraction (∠r).\nWhat is the angle of emergence?\nThe angle between the emergent ray and normal at the second refracting face of the prism is called the angle of emergence.\nIf the emergent ray makes an angle of 40° with the second refracting surface of the prism, what is the angle of emergence?\n∠e = 90° – 40° = 50°\nHow many faces are there in a prism?\nThree rectangular faces and two triangular bases.\nWhich property of light is used by the prism to form a spectrum?\nRefraction of light.\nWho was the first scientist to use a glass prism to obtain the spectrum of sunlight?\nSir Isaac Newton\nWhich exciting phenomenon is shown by the inclined refracting surfaces of glass prism?\nThe inclined refracting surfaces show the phenomenon of dispersion of light, i.e. they split the incident white light into its components.\nHow does the ray of light get refracted through a transparent prism?\nThe ray of light suffers two refractions on passing through a prism and deviates towards the base through a certain angle from its original path.\nNCERT LAB MANUAL QUESTIONS\nDefine angle of deviation.\nThe angle formed between the incident ray produced in the forward direction and the emergent ray produced in the backward direction is called the angle of deviation.\nList the factors on which the angle of deviation through a prism depends.\nThe angle of deviation through a prism depends on\n- angle of prism,\n- nature of material of the prism and\n- angle of incidence.\nWhy does a ray of light bend towards the base when it passes through a glass prism?\nWhen the ray of light goes from optically rarer medium (air) to optically denser medium (glass) at the first surface, it bends towards the normal. At the second refractive surface, the light ray enters from denser medium (glass) to rarer medium (air). Hence, it bends towards the base of the prism i.e. it bends away from the normal.\nWhy does the white light split into different colours when passes through a glass prism?\nIn a material medium, the light rays of different colours travel with different speed hence, the material shows different refractive indices for different colours of light. Therefore, different colours of light bend through different angles with respect to the incident ray. So, they emerge along different paths.\nWhy does the white light not split into different colours when it passes through a glass slab?\nA glass slab whose faces are parallel can be considered as comprising two prisms of same refractive angle. The second identical prism can be considered in an inverted position with respect to the first prism. When a beam of white light passes through one prism, it gets dispersed, but on passing through the second inverted prism, the spectrum recombines to form a beam of white light again. Therefore, white light does not split into different colours when it passes through a glass slab.\nPRACTICAL BASED QUESTIONS\nMultiple Choice Questions /VSA (1 mark)\nIn an experiment on tracing the path of the rays of light passing through a glass prism, the correct setting of protractor (D) for measuring the angle of incidence ∠i in diagram is\nTo trace the path of the ray of light through a glass prism, four students A, B, C and D did the following:\nA: Kept the eyes at certain moderate distance from the glass prism while placing both the image pins.\nB: Kept the eyes close to the glass prism while placing both the image pins.\nC: Kept the eyes close to the glass prism while placing first image pin and far from the prism while placing the second image pin.\nD: Kept the eyes at 45° angle while placing both the image pins on a line which makes an angle of 30° with the normal.\nThe correct procedure is that of the student\nA student showed the following traces of the path of a ray of lighjt passing through a glass prism:\nThe trace most likely to have been done correctly by her, is\nWhich of the following is the best set-up for tracing the path of ray of light through a glass prism?\n(a) (i) only\n(b) (ii) only\n(c) (iii) only\n(d) (iv) only\nFour students A, B, C and D perform experiment on tracing the path of light ray through a glass prism. The correct position of the pins used to describe incident ray is shown on paper by four of them, respectively as\nThe correct result is obtained by\n(a) A and B both\n(b) B and C both\n(c) A and D both\n(d) A only\nFor the refraction of a ray of light through a glass prism, the path of a ray of light is shown below. [AI2013]\nThe angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by\n(a) Y, N, Z\n(b) X, Z, M\n(c) X, N, Z\n(d) X, M, Z\nWhile performing experiment to trace the ray of light through a triangular glass prism, a student is asked to draw the boundary of a prism on a paper. This is done to\n(a) see whether the given prism is triangular or not.\n(b) ensure that the prism is always kept within the boundary during experiment.\n(c) check whether the edges of the prism are broken or not.\n(d) make the diagram more clear.\nA student traces the path of a ray of light passing through a triangular glass prism. For measuring the angle of emergence, the correct setting of the protractor (D) corresponds to diagram\nIn an experiment to trace the path of a ray of light through a glass prism for different values of angle of incidence, a student would find that the emergent ray [Delhi 2013]\n(a) is parallel to the incident ray.\n(b) perpendicular to the incident ray.\n(c) is parallel to the refracted ray.\n(d) bend at an angle to the direction of incident ray.\nFor tracing the path of a ray of light through a glass prism, the ideal distance between two pins is [Foreign 2013]\n(a) 2-3 cm\n(b) 3-5 cm\n(c) 6-8 cm\n(d) 10 – 15 cm\nThe following figure depicts the bending of a ray of light on passing through a prism. Identify the angle of deviation from the given choices.\nFor the refraction of a ray of light through a glass prism, the path of ray of light is shown.\nSumitra was given two glass prisms. One was made of ordinary glass and other one was of flint glass (Given that refractive index of flint glass is more than that of ordinary glass). She traced the path of rays through both and after observing the diagram and concluded that bending of light for the given angle of incidence was\n(a) more in the prism made of flint glass.\n(b) more in the prism made of ordinary glass.\n(c) same in both the glass prisms.\n(d) independent of the nature of glass of which the prism was made.\nWhile performing the experiment on tracing the path of a ray of light through a glass prism as shown in the given diagram, four students interpreted the result as given below. At the minimum deviation position of the prism, which one of the four interpretations is correct?\n(a) θ1 = θ3\n(b) θ1 = θ2\n(c) θ1 = θ4\n(d) θ1 > θ3\nIn an experiment on tracing the path of ray of light passing through a glass prism, three students A, B, C performed the experiment for three different sets of angles of incidence. The set taken by them, were respectively as (15 , 25 , 45 ), (30 , 45 , 60 ) and (65 , 75 , 85 ). The student/students who is/are likely to get best results is/are\n(a) A only\n(b) B only\n(c) C only\n(d) all of them\nWhile performing the experiment to trace the path of a ray of light passing through a glass prism, four students marked the incident ray and the emergent ray in their diagrams in the manner shown below:\nThe correct figure is given in\nShort Answer Questions (2 Marks)\nDraw a ray diagram to show refraction of light through a triangular glass prism and show angle of incidence, angle of deviation, emergent ray and emergent angle in it.\nPQ = incident ray\nRS = emergent ray\n∠i = angle of incidence\n∠r = angle of refraction\n∠e = angle of emergence\n∠8 = angle of deviation\nIn the experiment to trace the path of a ray of light through a triangular glass prism,\n- a student is asked to draw the boundary of prism on the paper, why?\n- if the angle of incidence is 30°, what can be the measure of angle of emergence at the minimum deviation condition of the prism?\n- It ensures that prism is always kept within this boundary during the experiment.\n- At the minimum deviation condition,\n∴ angle of emergence = angle of incidence\n∠e = ∠i = 30°\nIn the experiment to trace the path of a ray of light through a triangular glass prism,\n- if the emergent ray makes an angle of 35° with the second face of prism, then what is the angle of emergence?\n- can the angle of deviation be zero and why?\n- The angle of emergence ∠e, = 90° – 35° = 55°\n- No, because at the second refracting surface of the prism, ray of light moves from denser to rarer medium; it bends away from the normal, i.e. bends towards the base of the prism.\nWhen we place a glass prism in the path of a narrow beam of white light, a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled diagram to illustrate it.\nSecond prism recombines the spectrum obtained by the first prism. So, from the other side of the second prism, a beam of white light is again obtained as shown in figure given below:\nA very thin narrow beam of white light is made incident on one face of rectangular glass slab and one face of the combination of two prisms, one up and one down in contact .Comment on the nature of the behaviour of the emergent beam in the above two cases.\nCase 1: The emergent beam refracted through a rectangular glass slab emerges parallel to the incident ray and is shifted sideward slightly. No dispersion occurs.\nCase 2: The emergent beam from the second inverted identical prism is again white light and emerges parallel to the incident beam and shifted sideward slightly. Overall no dispersion occurs due to the coipbination of two prisms placed inverted to each other.\nThus emergent ray in both the cases emerges from the opposite parallel faces and is parallel to the incident ray.","domain":"optical_engineering"}
{"url":"https://www.doublehelixoptics.com/applications/","date":"2023-03-26T09:25:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945440.67/warc/CC-MAIN-20230326075911-20230326105911-00540.warc.gz","language_score":0.8196882605552673,"token_count":776,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__68381551","lang":"en","text":"Thank you for your message. We will respond shortly.\nPlease enter a valid name and email\nSee how Double Helix Light Engineering is\nCombining 3D single-molecule tracking with super-resolution microscopy, K. Lasker observed the trajectory and co-localization of individual proteins in membraneless compartments in asymmetrically dividing Caulobacter crescentus bacteria at each pole of the cell during cell division.\nE. Nehme et al. trained a neural network to localize multiple emitters with overlapping tetrapod point spread functions over a large axial range and then to design the optimal point spread function for such a multi-emitter case. This approach was used to image mitochondria and telomeres in cells.\nUsing 3D single-particle tracking to map the transport of self-propelled Janus nanoparticles in an inverse opal matrix, H. Wu et al. found that these nanoswimmers escaped from cavities more than an order faster than expected when compared with Brownian particles.\nUsing 3D single-particle tracking with nanobody arrays and light sheet, to gently track live cell multiple chromosomal loci throughout the mammalian cell nucleus, Gustavson et al. identify a method to advance fundamental understanding of chromatin dynamics and how it is altered during disease progression.\nA.R. Roy et al. used a double-helix point spread function to enable 3D single-molecule super-resolution localization microscopy at the nano-bio interface, determining the relative spatial position and distribution of proteins with 10-20 nm precision.\nTilted light sheet microscopy with 3D point spread functions (TILT3D) combines a novel, tilted light sheet illumination strategy with long axial range point spread functions (PSFs) for low-background, 3D super-localization of single molecules as well as 3D super-resolution imaging in thick cells\nCarr et al. quantify the dynamics of T- cell receptors using extended depth 3D super-resolution imaging with Double Helix. This creative study combines the high-depth, high-precision Double Helix with multi-plane super-resolution imaging and single particle tracking to visualize the cell surface of entire live Eukaryotic cells.\nUsing the SPINDLE®, Wang et al showed that combining the Double Helix-PSF with variable-angle illumination epifluorescence microscopy (aka pseudo-TIRF), the signal to noise ratio, and hence, the localization precision of point emitters can be improved up to five-fold. This study will allow users of the SPINDLE™ to improve the accuracy of their image and track reconstructions with their current microscope set-up.\nJain and Wheeler et al. utilize the SPINDLE™ to visualize and characterize previously unseen stress granule cores. Stress granules are sub-cellular aggregates associated with ALS and Dementia. This ground-breaking study proposes a new model for the formation and dynamics of stress granules based on proteomic studies, in vitro isolation, and in vivo 3D Double Helix super-resolution imaging.\nGahlmann et al. utilize Double Helix with super-resolution to reconstruct three dimensional, three color super-resolution images of live bacteria using fluorescent proteins and a lipophilic dye. This innovative study quantitatively describes the sub-cellular structure of Caulobacter crescentus bacteria.\nGrover et al. describe the Double Helix SPINDLE method and utilize super-resolution microscopy to reconstruct sub-diffraction 3D images of microtubules. This influential paper utilizes the Double Helix point spread function for high precision 3D sub diffraction super-resolution imaging.","domain":"optical_engineering"}
{"url":"https://forums.overclockersclub.com/topic/207261-samsung-begins-euv-based-7-nm-production/","date":"2019-03-19T10:23:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912201953.19/warc/CC-MAIN-20190319093341-20190319115341-00468.warc.gz","language_score":0.948784351348877,"token_count":267,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__201043453","lang":"en","text":"Many companies have been racing to ever smaller feature sizes for electronics, and Samsung has just made a significant stride in the competition as it announces its EUV process node has begun wafer production. The various circuits and transistors in modern electronics are made by a process called photolithography, which involves light being used to etch away layers of silicon. The wavelength of the light directly impacts how small a feature can be etched, so to reach smaller sizes the various manufacturers have been working to shift from ultraviolet to so-called extreme ultraviolet, or EUV. According to Samsung its EUV process uses light with a wavelength of 13.5 nm, while the conventional argon fluoride (ArF) technology uses light with a wavelength of 193 nm and multi-patterning mask sets to achieve the feature sizes we have today. With EUV a single mask can be used while ArF would take four masks to make the same layer, so both time and money can be saved by using EUV here.\nThe new process Samsung will be making with this technology will be its 7LPP, or Low Power Plus, and compared to its current 10 nm FinFET process it will offer up to a 40% increase in area efficiency and either up to 20% higher performance or 50% lower power consumption.\nBack to original news post","domain":"optical_engineering"}
{"url":"https://www.wtmb.in/how-it-works","date":"2019-10-21T17:55:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987781397.63/warc/CC-MAIN-20191021171509-20191021195009-00402.warc.gz","language_score":0.9130682945251465,"token_count":371,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__54777739","lang":"en","text":"How Tobii Dynavox Eye Tracking Works?\nTobii eye tracker uses Near Infra-red light to illuminate the eyes. From there, two extremely high quality camera sensors capture the reflection off of the retina and the cornea of the eyes, commonly referred to as “red eye” and the glint, respectively. The eye tracker then uses these two points to build a 3D model of the user’s eyes to determine two things: where the user is looking (gaze point) and where the user’s eyes are in space, relative to the location of the computer (track box).\nThis information is then paired with Tobii Windows Control to allow the computer to know exactly where the user is looking with an accuracy of 1cm. The computer can then track the user’s gaze point and, ultimately, tell the computer where their eyes are looking at all times. By knowing where the user’s eyes are looking, the eye tracking device then can control the computer, similar to the way a mouse lets you control it with your hand.\nGaze interaction is a computer access method that allows those with disabilities to navigate and control their computer with their eyes, similarly as an everyday computer user uses a mouse (e.g., activate, select, zoom, scroll, etc.) to control their computer. Gaze interaction only requires the movement of the eye itself—the movement of other muscles is not required, making it a perfect solution for those with rehabilitative disabilities (paralysis, spinal cord injury, repetitive strain injury, severe carpal tunnel) and motor disabilities (Lou Gehrig’s, cerebral palsy, autism, etc.).\nTobii Windows Control provides a more natural, efficient and precise computer interaction method, superior to any other computer control device used today.","domain":"optical_engineering"}
{"url":"https://nosejivugefipavij.loveletterstotoledo.com/scientific-importance-of-high-angular-resolution-at-infrared-and-optical-wavelengths-book-24499kf.php","date":"2021-05-14T23:47:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991829.45/warc/CC-MAIN-20210514214157-20210515004157-00516.warc.gz","language_score":0.8689291477203369,"token_count":1998,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__105407052","lang":"en","text":"1 edition of Scientific importance of high angular resolution at infrared and optical wavelengths found in the catalog.\nScientific importance of high angular resolution at infrared and optical wavelengths\n|Statement||edited by M. H. Ulrich and K. Kjar.|\n|Series||Proceedings / ESO Conference|\nOptics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves. Chapter 1: Optical Turbulence in High Angular Resolution Techniques in Astronomy ( KB) Contents: Optical Turbulence in High Angular Resolution Techniques in Astronomy (J M Beckers) Optical Turbulence Profiles at CTIO from a Element Lunar Scintillometer (P Hickson et al.) High Resolution SLODAR Measurements on Mauna Kea (T Butterley et al.).\nA scanning angle (SA) Raman microscope with nm excitation is reported for probing chemical content perpendicular to a sample interface. The instrument is fully automated to collect Raman spectra across a range of incident angles from to ° with an angular spread of ± ° and an angular uncertainty of °.Cited by: 4. – an angular resolution of 60 and micro-arcsec at Å and Å – ~ pixels of resolution over the surface of nearby dwarf stars – observations in • ~Ångstrom UV pass bands around, e.g., C IV (, K), Mg II h&k (10, K) • broadband, near .\n1. The International Telecommunication Union (ITU), through its Radiocommunication Sector, has formally recognized the scientific importance of lunar radio astronomy, especially below 30 MHz, in its recommendation ITU-RA “Protection of frequencies for radioastronomical measurements in the shielded zone of the Moon.”. A space-based telescope can achieve a diffraction-limited angular resolution of ′′ for red light (wavelength nm). What would the resolution of the instrument be in the infrared, at μm?\nexperiences of people brought up in divorced or separated families and two parent families.\nThe Mary Celeste AN UNSOLVED MYSTERY FROM HISTORY\nFar East since 1500.\nCalculations for ascertaining the latitude north of the equator\nThirty sonnets, 1919-1929\nThe younger American poets\nStudy Of Present-law Taxpayer Confidentiality And Disclosure Provisions As Required By Section 3802 Of The Irs Restructuring And Reform Act Of 1998\nFriendship with Christ\nNational Conference on Labour Contract and Construction Cooperatives, January 17-18, 1978, at New Delhi\nThe face in the night\nRiparian and wetland vegetation of central and eastern Oregon\nRadio astronomy today\nA bill to amend title XVIII of the Social Security Act to improve the provision of telehealth services under Medicare\nGet this from a library. Scientific importance of high angular resolution at infrared and optical wavelengths: ESO conference, Garching, March proceedings. [M H. Book-Review - Scientific Importance of High Angular Resolution at Infrared and Optical WavelengthsAuthor: A.\nTokovinin. Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths IV. Scientific Importance of High Angular Resolution 1. Planets and Asteroids T. Encrenaz (Paris) 2. Stars and Star Formation The European Southern Observatory is organizing an international conference on the subject \"SCIENTIFIC IMPORTANCE OF HIGH ANGULAR.\nTitle: Book-Review - ESO Conference on Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths Journal: The Messenger, No, P. 21, DIVISION VIII OPTICAL and INFRARED TECHNIQUES.\nScientific Importance of High Angular Resolution at Infrared and Optical Wavelengths. Scientific importance of high angular resolution at infrared and optical wavelengths, Ulrich, M.H.&Kjaer, K.\nEds., Proceedings of an ESO Conference, Garching, March Google Scholar by: 3. Angular Resolution and Wavelength 45 Because like is a wave-like phenomenon, it causes interference when it is reflected and concentrated in an optical system. This pattern of interference makes it impossible to clearly see details that are smaller than this interference pattern.\nThere is a geometric relationship between the resolution ofFile Size: 64KB. Optical long-baseline interferometry with the VLT interferometer will yield the fantastic resolution of 1 milli-arcsec. We discuss scientific objectives, examples of previous speckle observations, and computer simulations of optical erometry in the multi-speckle : Gerd Weigelt.\nBlaauw, A.in Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths, ed. M.H. Ulrich, K. Kjär M.J.in Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths Ridgway S.T. () Astrophysical Programs for High Angular Resolution Optical Interferometry.\nIn: Alloin D Cited by: 2. Abstract. High angular resolution techniques applied in space should allow a real scientific breakthrough: production of high dynamic range stellar images at optical and UV wavelenghts, resolution of Be star envelopes using spectral information, understanding of internal dynamics in active galaxies with accuracies much larger than achievable from the by: 2.\nHigh-resolution images and simultaneously the spectrum of each resolution element can be obtained by objective prism speckle spectroscopy and projection speckle spectroscopy methods. Finally, we will discuss the application of speckle masking to coherent arrays of by: 2.\nABSTRACT. The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is a new balloon-borne far-infrared interferometer, being designed to provide spatially-resolved spectroscopy in the far infrared (30–90 μm). The combination of an 8-meter baseline with a double-Fourier Michelson interferometer allows.\nCoherence and interferometry through optical fibers C. Froehly (in Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths, M.H.\nUlrich and K. Kjar, editors, ) Single-mode fiber optics in a long-baseline interferometer S.B. Shaklan, F. Roddier (Applied Optics ). New ground-based instruments operating at infrared, optical, and radio wavelengths will map the three-dimensional distribution of matter in the universe out to distances of a billion light-years and may reveal the physical processes that create such unexpected patterns.\nrapid and high-angular-resolution measurements of solar flares, the. One of the primary advantages of CCD's over photographic plates is the former's high efficiency in detecting light.\nTrue Radio telescopes are large in part to improve their angular resolution, which is poor because of the long wavelengths at which they are used to observe the skies. Adaptive optics: A breakthrough in astronomy. Scientific importance of high angular resolution at infrared and optical wavelengths.\nIn: Proceedings of an ESO Conference, ESO, Garching, March. Infrared radiation (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with longer wavelengths than those of visible is therefore generally invisible to the human eye, although IR at wavelengths up to nanometers (nm)s from specially pulsed lasers can be seen by humans under certain conditions.\nIR wavelengths extend from the nominal red edge of the visible. The angular resolution of ground-based optical telescopes is more seriously limited by Earth's _____ than by diffraction.\ninfrared, ultraviolet, and high-energy (gamma) Use the nanometer wavelengths of light to explain a rainbow, why the sky is blue or why the sun looks red in the morning and night.\nWe are often told in planetary imaging that the images are best resolved in red light. Indeed, most of our image look best through longer wavelengths (red or near-infrared). However, we are also teached by the laws of optic that in theory, the resolving power of a telescope is, on the contrary, better in the short wavelengths (blue light).\nOne of the primary advantages of CCD's over photographic plates is the formers high efficiency in detecting light True Radio Telescopes are large in part to improve their angular resolution, which is poor because of the long wavelengths at which they are used to observe the skies.\nA far-infrared (FIR) space-based interferometer such as SHARP-IR would provide new capabilities for high angular resolution in the FIR; these capabilities, in turn, would enable a wide range of new scientific inquiry.\nWhile the science case for SHARP-IR is still in development, one key .Start studying Astronomy test (telescopes).\nLearn vocabulary, terms, and more with flashcards, games, and other study tools. the angular resolution of ground-based optical telescopes is more seriously limited by earths _____ than by diffraction. infrared, ultraviolent & high-energy(gamma).Abstract.\nInfrared and visible cirrus cloud optical properties were measured using ground-based high spectral resolution remote sensing data. The optical properties include: downwelling atmospheric radiance at infrared wavelengths and atmospheric aerosol backscatter cross-section and depolarization at a visible wavelength.","domain":"optical_engineering"}
{"url":"http://burgessconsult.com.s3-us-west-2.amazonaws.com/refraction-of-light-lab.html","date":"2022-05-26T07:51:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604495.84/warc/CC-MAIN-20220526065603-20220526095603-00001.warc.gz","language_score":0.9532421827316284,"token_count":1153,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__324163007","lang":"en","text":"Discussion: You know that light, when passing from one medium to another, will refract or bend. We learned that occurs because light bends when it passes through substances, such as water and plastic. The teacher will pose probing questions to get an understanding of how much each pair grasps the idea of refraction: What do you see? The refractive index for red light in glass is slightly different than for violet light. This experiment showed that white light is actually made of all the colours of the rainbow. This is the kind of lens used for a magnifying glass.\nLikewise, the room in which the experiment is being carried out could be also darker. This change of direction is caused by a change in speed. Depending on how gradual the change, you may have seen light curve! They will also receive feedback during the explain discussion portion. Step 3: Draw a large cross on the paper, in front of the mirror, but towards one side of the paper meaning not right in the middle. Since water is denser than air, when the light passed through the water it bent allowing you to see the penny at the bottom of the cup. A biconvex lens is called a converging lens. The teacher will ask the students to discuss their answers to the questions on the worksheet.\nDuring the Elaborate portion of the lesson, the teacher will ask the students to use what they learned about light refraction to answer the question: If you are spearfishing from a riverbank and you see a fish in the water, do you need to aim above, at, or below the fish that you see in order to hit it? Does this match your prediction? If light enters any substance with a higher refractive index such as from air into glass it slows down. The teacher should elicit the prior knowledge by asking them to use what they know about light to try to explain why the pencil appears distorted. Parallel rays of light can be focused in to a focal point. For the elaborate portion of the lesson students are asked to explain how to spearfish from a riverbank. To obtain these values I used the index of refraction of crown glass because it is more likely close to the glass plexiglass that we are using. Put the angle in air on the horizontal axis. It bends toward the normal line if the light slows down in the new medium, and it bends away from the normal if it speeds up in the new medium.\nLesson Summary Reflection is where light bounces off shiny, reflective surface. There is a short quiz for the summative assessment. Since the frequency of a wave cannot change, independent of the source changing its frequency when it originally emits a wave, this change in wave velocity must result from a change in its wavelength in the second medium. But how is the angle of refraction related to the angle of incidence? When light touches the surface of the prism, refraction takes place at the boundary of the prism i. Another point to be noted here is that the angle of refraction is different for these colors as they have different wavelength. Experiment 2: Reviewing Refraction Step 1: Fill the aquarium half way with water. Introduction This laboratory was designed to investigate the behaviour of light as it travels through a less dense into a denser medium.\nBased on what we saw in the experiment, this bending must be based on density, because when density changed gradually, the light bent gradually, producing a curve. They appear in the same order , just like in the rainbow. The secondary rainbow that can sometimes be seen is caused by each ray of light reflecting twice on the inside of each droplet before it leaves. Let the kids gradually move the water-filled bottle in front of the sticky note. Try to have at least 15 data points for each substance. We can see in my data that this law is true. The teacher will provide more formal written feedback when they answer the written elaborate question.\nThis is called the law of reflection, which says that the incident angle is equal to the reflected angle. This is due to refraction. In refraction, the characteristics of light change. These different wavelengths travel at different speeds in glass. Also we can say Sources of error could have appeared when fiddling with the pins and the lamp during the experimental procedure. Each color represents a different wavelength of light.\nExplanation: Prism is made up of glass. Furthermore we are also aware of another relationship which links the angles of incidence and refraction to the refractive index of the substance used. The refractive index of violet light is 1. After answering a few questions the students are split into partners for the explore portion of the lesson. The students will be able to distinguish between reflection, refraction, and absorption, and be able to apply the information they learned about refraction to a real life situation. Since water is denser than air, when the light passed through the water it bent allowing you to see the penny at the bottom of the cup. A higher refractive index shows that light will slow down and change direction more as it enters the substance.\nIn this lesson plan students learn about the property of light: refraction. Use the pencil and ruler to draw the path of the light, from the laser pointer all the way to the cross. Suggested improvements to the experimental procedure include perhaps using a stronger beam of light maybe laser so as to better see the angle of refraction. Have you ever noticed that diamonds sparkle in sunlight? Continue in this manner until you have gathered data over as wide a range of angles as possible. Use an entire sheet of graph paper for each graph, and make the graph as large as is reasonable convenient.","domain":"optical_engineering"}
{"url":"http://bws.bluelemon.io/tag/solar-cell/","date":"2018-10-16T10:15:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583510749.37/warc/CC-MAIN-20181016093012-20181016114512-00489.warc.gz","language_score":0.9406992197036743,"token_count":254,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__15655550","lang":"en","text":"By transfer printing instead of etching, the new method developed by Lee and his colleagues may be used to make very flexible photovoltaics with a smaller amount of materials. The thin cells can be integrated onto glasses frames or fabric and might power the next wave of wearable electronics.\nScientists have developed solar cells of 1 micrometer thick. That’s 100 times thinner than a human hair. Interesting isn’t it?\nThe solar cells at the second side are are almost as efficient as the cells in the front end. As a result, the panels can also utilize the light that is reflected by the surface of the water or the ground, which normally is lost.\nBy applying double-sided panels – working on water – the yield of solar power can be increased by 20% on average and expand the potential to generate solar energy even more.\nSo why not use both sides?\nDouble-sided solar panel\nThis week, Energy Research Centre (ECN) is demonstrating ‘floating double-sided solar panels on the ‘River IJ’ in Amsterdam. By also using the back of the solar panels, the reflected light from the surface of the water, can be catched to generate electric power. Read More","domain":"optical_engineering"}
{"url":"http://www.expertphotography.com/understand-focal-length-4-easy-steps","date":"2013-05-23T15:15:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703489876/warc/CC-MAIN-20130516112449-00046-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9438946843147278,"token_count":1112,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__127365648","lang":"en","text":"Why You Should Know What Focal Length Means\nKnowing what the focal length means, especially in relation to your camera, is very important when it comes to buying lenses. This post will leave you well informed with the correct information at to what the lenses do, which ones are right for you, how to use them creatively, and all the technical speak you’ll need.\nSection 1 – What does it actually mean?\nThe focal length of your lens essentially determines how ‘zoomed in’ your photos are; the higher the number, the more zoomed your lens will be.\nIt is often misunderstood that the focal length is measured from the front or rear of the lens, when in reality it’s the distance between the point of convergence in your lens to the sensor or film in your camera. Take a look at the diagram below that explains this.\nSection 2 – Different focal ranges and what they’re used for.\nUltra Wide Angle 14-24mm\nThese lenses are often considered specialty items and the range is not often included as part of a kit lens. They create such a wide angle of view that they can look distorted as our eyes aren’t used to seeing that sort of range. They’re often used in event and architectural photography for getting a lot into a photo when shooting in a confined space. Wide and ultra wide lenses are about putting yourself in the middle of it all, not just about getting the whole of a scene in. These lenses are not particularly suitable for portraits as they enhance the perspective so much that the facial features can look unnatural.\nWide Angle 24-35mm\nThis is where you’ll find most kit lenses for full frame cameras will start at. 24mm is roughly the point at which the distortion that appears to stretch the side of the image stops appearing unnatural. They are used widely by photojournalists for documenting situations as they are wide enough to include a lot of the context and still look realistic.\nIt’s in this range at about 45-50mm that the lens will reproduce what our eyes will see (excluding peripheral vision). I personally like to use this range when shooting on the street or in situations with friends in a close setting such as at a dinner table or the pub. A standard lens such as a 50mm f1.8 is an excellent, inexpensive addition for a camera and will provide excellent results. Prime lenses (lenses with a fixed focal length – can’t zoom) will always provide better results than your kit lens as the lens is built with a single purpose in mind. It does one job well rather than multiple jobs poorly.\nMild Telephoto 70-105mm\nThis range is often where kit lenses will stop and you’ll start to get into the range of telephoto lenses and portrait primes (around 85mm). This is a good range for portrait lenses as the natural perspective of the lens will separate the face from the background without completely isolating the face.\nLenses in this range are often used for distant scenes such as buildings or mountains. They’re not suitable for landscapes because of the way they will flatten the perspective of a scene. Lenses higher than this range are mostly used for sport and animal photography.\nSection 3 – How does the focal length affect the perspective of a photo?\nI’ve tackled most of this in the previous section, but to give you a better idea of how the focal length affects the perspective of a photo, I’ve taken 4 photos of the same subject at different focal lengths and compared them below. The subjects (3 soup cans) are kept in the same position (about 10 inches apart from one another) in every photo. It’s worth noting that these photos are shot with a crop sensor so the actual focal length will be higher then listed – something I explain below in Section 4.\nTo say that it’s the focal length that is changing the perspective is however, quite misleading. You see, it’s actually the distance from the subject. The focal length is an indicator to the distance from the subject, so they stay framed mostly the same, it’s because the focal length is getting longer (zooming in), as the camera moves further away. Remember, it’s the distance from the subject, and the focal length is just used to compensate for this.\nSection 4 – What about my crop sensor?\nShooting on a crop sensor has what’s known as the ‘crop factor’. This essentially means that any full frame lenses (EF, FX, etc.) that you put onto a crop sensor body will have a cropping effect. The actual factor is approximately 1.6. In real terms, this means that if you to shoot at 35mm, the actual result you’ll get will be close to a 50mm image.\nThe way this works is demonstrated in the diagrams below. What you’re effectively doing is zooming in on an image and avoiding the widest parts of the scene.\nEven lenses built for crop cameras such as the EF-S range and DX range will still have this effect, that’s because lenses are listed by their actual length, not their field of view. These lenses will not work on a full frame body without a heavy vignetting effect as the image will not project onto the whole of the sensor.","domain":"optical_engineering"}
{"url":"https://whitepaper.metabell.io/ar-tracking-technology","date":"2024-04-16T16:38:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00052.warc.gz","language_score":0.8430472016334534,"token_count":275,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__143389399","lang":"en","text":"AR tracking takes an object or a medium in the real world as the reference, fixes the AR content to the relative position of the reference, and changes the relative position along with the movement of the reference. The common types of AR tracking include: AR plane tracking, AR image tracking, and AR physical tracking.\nAR Plane Tracking: Tracking effect with any plane of the real world as a reference.\nAR Image Tracking: Tracking effect with realistic image as reference.\nAR Physical Tracking: Tracking effect with a three-dimensional object as a reference.\nAR Tracking Technology Core Algorithm:\nFeature detection: image local feature detection can extract scale invariant and rotation invariant features.\nFeature point matching: A data structure algorithm using a high-dimensional feature space, rather than simple linear matching.\nObject Tracking and 3D pose estimation: Each tracking relies on the aforementioned feature point extraction, matching and computation to obtain the homograph transform (the set of 3D realistic coordinate points of the subject and the set of 2D screen imaging coordinates).\nWith the resulting set of matched points and in-camera parameters obtained by calibration, the algorithm for solving the perspective N-point problem can be used to accurately find the out-camera parameters - i.e., the exact camera poses in real time, allowing efficient estimation of the subject's 3D pose.","domain":"optical_engineering"}
{"url":"https://twohotshoes.com/tag/xf35mm/","date":"2024-04-24T15:20:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819668.74/warc/CC-MAIN-20240424143432-20240424173432-00309.warc.gz","language_score":0.9644172191619873,"token_count":136,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__73952901","lang":"en","text":"Of the three lenses Fujifilm launched with their original interchangeable X cameras the Fuji XF 35mm F/1.4 was probably the best optically of them all. I reviewed the XF 18mm f/2 here, a lens that I really like despite it’s quirks, but the 35/1.4 had a little bit of magic to the look it helps create. The 35mm gives a field of view that is close to what you will get using a 50mm on a full frame camera. A true classic focal length and many photographers first foray past the kit lens that came with their camera. This lens is a step above the usual.","domain":"optical_engineering"}
{"url":"https://tams.informatik.uni-hamburg.de/applets/hades/webdemos/00-intro/02-imageprocessing/chroma-mult.html","date":"2024-03-04T04:04:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00155.warc.gz","language_score":0.7279502153396606,"token_count":469,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__17596115","lang":"en","text":"|TAMS / Java / Hades / applets: contents | previous | next\nadders and arithm...\nLFSR and selftest\nI/O and displays\nCMOS circuits (sw...\nMips R3000 cosimu...\nIntel MCS4 (i4004)\nimage processing ...\n[Sch04] RALU, Min...\nA second demonstration of chroma-keying,\nthis time with a smoothed-out transition between the foreground\nand background areas.\nThis makes the decision more tolerant against slight lightning differences\nand possible color variations of the bluescreen itself,\nbut at the cost of a slight blurring of the outline.\nThe algorithm then proceeds as follows. The input image is compared with an image of the background (bluescreen) color, and a mask image (white/black) is contructed from this. Unlike a simple pixel equality test, class EqualsWithinFilter will accept all pixels up to a certain absolute difference level (currently 100) as equal, and up to twice the level as almost equal. It constructs a mask output image that has white for all pixels determined equal between the input images, and gray for pixels inside the 'almost equals' range.\nThe positive mask has white for all blue pixels, while the inverted negative mask has white for all 'person' pixels. A multiplication of the positive mask and the background mask leaves background pixels for all originally bluescreen pixels, while the corresponding multiplication of the negative mask and the original input image leaves only the 'person' pixels. Again, click on the corresponding image viewer components in the schematics to view those intermediate images.\nA final add operation is then used to merge the intermediate image into the single combined output image. The following three images show the original input image (girl in front of bluescreen, image provided courtesy of chroma-key), the background image, and the resulting combined output image:\nAs you can see, the algorithm as implemented here is less sensitive to an absolutely exact lightning of the background.\n|Print version | Run this demo in the Hades editor (via Java WebStart)\n|Usage | FAQ | About | License | Feedback | Tutorial (PDF) | Referenzkarte (PDF, in German)","domain":"optical_engineering"}
{"url":"https://delbertregan4101.wordpress.com/2019/02/17/what-type-of-fiber-optics-patch-cord-should-you-choose/","date":"2022-10-06T01:23:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337680.35/warc/CC-MAIN-20221005234659-20221006024659-00717.warc.gz","language_score":0.9475315809249878,"token_count":1525,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__208659478","lang":"en","text":"Fiber optics patch cord is seeing broad fostering in applications covering telecommunication as well as information communication. With countless company and venture enjoying fantastic take advantage of it, fiber patch cord represents without a doubt the most enough as well as prevalent data transfer feeder. As those gigabit-capable networks proliferates, the fueling ability and also .rate pursuit additionally drives fiber patch cable implementation. When encountering numerous fiber patch cable types on the market, exactly how can we make a legitimate choice? Some standard understanding of fiber patch cable would certainly be handy.\nWhat Is Fiber Patch Cable?\nFiber patch cord, commonly called fiber patch cable television or optical jumper, is a size of fiber cable that terminated with fiber optic ports (LC, SC, MTRJ, ST as well as etc) at each end. The ports allow fiber optic patch cord to be swiftly linked to an optical switch or various other telecommunications/computer tool. Fiber patch cord is a key player for interior usage, like in server spaces or in information centers. Including outstanding dependability, premium adaptability and enhanced protection, fiber patch cable has actually placed the very best choice for applications where conventional copper cable televisions falls short to get to.\nWhat Are Fiber Patch Cable Kinds\nFiber patch cord can be classified into various kinds based upon different requirements, such as fiber optic cable manufacturer cord setting, transmission mode, coat type, port type and brightening kind.\nFiber Wire Setting: Solitary mode fiber is tinted yellow, while multimode fiber tinted orange and also aqua. Solitary mode fiber patch cord has a size of 8-10 µm that enables just one mode of transmission, therefore it can bring signals at a lot greater speeds with lower depletion. Single mode fiber patch cord are suitable for high data rates or far away transmission. Multimode fiber patch cord is made of bigger diameter (50 µm and 62.5 µm) that can lug greater than one setting of transmission. They are commonly utilized for short distances as fiber to the desktop computer or patch panel to tools.\nFiber patch cord types\nTransmission Mode: While for transmission setting, there are simplex and also paired fiber patch cord. Simplex fiber patch cable has one fiber and one adapter on each end, whereas duplex fiber patch cable has two fibers as well as 2 ports on each end. Each fiber is significant “A” or “B” or use port boots with various shade to mark polarity.\nJacket Kind: PVC and also LSZH are used to define the jacket product of fiber patch cord. PVC fiber patch cables are extremely soft, and LSZH patch cables are a lot more inflexible as they contain the fire retardant substance that doesn’t discharge harmful fumes if it melts. PVC fiber optic patch cable is normally utilized for straight runs from the electrical wiring facility while LSZH wire is made use of in between floors in structure.\nAdapter Kind: Split by fiber port, there are same-connector kind fiber patch cord and hybrid fiber patch cord. Fiber patch cable televisions that have the same kind of connector on both ends consists of LC to LC fiber patch cable, SC to SC fiber patch cable and also etc. While crossbreed fiber patch cord has various connectors on each end, like fiber patch cord LC to SC.\nBrightening Type: Fiber optic adapters are designed and also polished to various shapes to lessen back reflection. This is specifically crucial in solitary mode applications. According to this adapter polish kinds, we have PC/APC/UPC fiber patch cord.\nUnique Fiber Patch Cable Summary\nFiber patch cord is evolving to keep pace with the ever raising bandwidth requirements. Some particularly developed fiber patch wires emerge to fit various application requirements. Understanding the readily available options would conserve us considerable money and time. Below are a few of fiber optic patch cords for utilizing in specific situations.\nArmored Fiber Patch Cable: It keeps all the functions of common fiber patch cord, however it is much stronger. Armored fiber patch cable can stand up to tipping by a grown-up and also it is anti-rodents. Strong as it is, armored fiber patch cord is in fact as versatile as conventional fiber optic patch cable, and also can be bend arbitrarily.\nBend Insensitive Fiber Patch Cable: This fiber patch cable television is highly immune to flex relevant damage as well as loss. It has a small cable flexing distance as well as avoid extra bend losses by innovative core style as well as enhanced low macro-bending sensitivity. Bend insensitive fiber patch cable is made to support data facility as well as FTTH applications, as well as high-density cabling that need to cover and also take dilemmas.\nMode Conditioning Fiber Patch Cord: It is a duplex multimode fiber patch cable that has a little length of single mode fiber at the start of the transmission size. It is created to fix the technical issue involved in making use of single mode tools on existing multimode wire plant. Mode conditioning fiber patch cable intends to drive the range of set up fiber plant past its initial designated applications, along with to enhance data signal high quality.\nReduced Insertion Loss Fiber Patch Cable: It births much similarities with typical patch cord evaluated only by look. However the onnectors at 2 ends are made with reasonably reduced insertion loss. http://www.bonelinks.com has done well in lowering the insertion loss to 0.3 dB for MTP ports and also to 0.2 dB for LC and also SC connectors, far less than the market requirement of 0.75 dB.\nUniboot Fiber Patch Cable: Terminated with specially designed LC uniboot ports, uniboot fiber patch wire integrate two fibers in a single cord, therefore delivering considerably much more advantages in high density cabling setting. It reduced the cable television matter up to 50% and also represent the best fit for areas where space is a problem.\nSwitchable Fiber Patch Cable: It enables quick as well as simple polarity adjustment in the area without unique devices or training, and prevents potential troubles that might brought on by re-terminating ports. With portable design, switchable fiber patch cable likewise attributes to much more efficient cord administration in high-density setting.\nWhat Type Of Fiber Patch Cable Should I Pick?\nSmaller as it is, fiber patch cable in fact forms the very foundation of a sound and also solid optical network. When picking a fiber optic wire, constantly considering the abovementioned aspects: fiber wire setting, transmission setting, coat kind, adapter type as well as brightening kind. If your cabling atmosphere is rather demanding, special fiber patch cord pointed out above should fit your demand.\nFiber patch cord has assisted many individuals to achieve bigger bandwidths as well as fantastic speeds, and also the advantage of which is stretching throughout a vast array of buildings. http://www.bonelinks.com uses a wide range of typical fiber patch cord kinds that endure the rigors of daily use, additionally, special fiber patch cord like armored fiber patch cable, bend aloof fiber patch cord, uniboot fiber patch cable and also etc are likewise readily available right here. You can likewise tailor your fiber patch cord with details features with FS.COM. We subject all our fiber patch cable to full system test in stringent atmosphere to ensure its performance and also dependability. Simply rest assured and also http://www.bonelinks.com will handle all your demands.","domain":"optical_engineering"}
{"url":"https://www.jovisionsecurity.com/news/news/jovision_dual_spectral_thermal_camera_won_the_if_design_awards_2022.html","date":"2023-09-22T05:30:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506329.15/warc/CC-MAIN-20230922034112-20230922064112-00516.warc.gz","language_score":0.8080800771713257,"token_count":171,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__106630606","lang":"en","text":"During the 2022 IF DESIGN AWARDS Ceremony, Jovision Dual-spectral Thermal Camera has won the AWARD because of the innovative design and technology.\nAs the awards speech indicates: Jovision thermal imaging camera can be used for various scenarios. It can be directly connected to a monitor without PC. The camera integrates innovative ambient temperature measurement and can automatically compensate for the ambient temperature. In addition, it has an automatic correction function for body temperature measurement in an ultra-low temperature environment, and the temperature measurement module can be replaced by multi-point temperature measurement in industrial environments.\nWith optional module, this product can be used for human body temperature detection or can be applied to test the object temperature for fire prevention.\nFor details of this product, Please Email to: firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"http://cindyhodesigns.blogspot.com/2015/10/","date":"2020-01-21T12:57:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250603761.28/warc/CC-MAIN-20200121103642-20200121132642-00175.warc.gz","language_score":0.8991092443466187,"token_count":1000,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__59474367","lang":"en","text":"Ever since pre-ordering the Glowforge, I’ve been obsessed about learning more about laser cutting and etching equipment. It’s the largest expense made to date so I wanted to ensure I know how to take care of it. Since Glowforge is so new, they haven’t finalized their design yet. No online manuals yet for us. The internet contains a wealth of information. The Glowforge machine is really a scaled down version of the industrial machine.\nSince I’m reading up on it anyway, why not share some of the knowledge with beginners just like me. If you have any feedback and / or comments, please let me know!\nGlowforge offers a Class I laser and a Class 4 laser\n- Class I (Basic model) means you don’t have to take additional safety precautions to be safe\n- Class 4 (Pro Model) means you have to take precautions like posting warning signs and wear proper safety glasses\nI’m looking forward to reading Glowforge’s safety precautions about it when it become available. However, it’s good to know about all the classes so you know where your machine fits in the industry. So I copied and pasted this excerpt that I found very helpful from the Ackland’s Grainger Website.\nDisclaimer: I’m not an expert and you must always refer to the guidelines from the manufacture or your machine or their website for your safety and safety of those around you.\nLaser Categories (Excerpted from Acklands Grainger):\nVision damage can occur from directly viewing the laser source or if the laser beam hits the eye. Damage is usually severe, and may result in blindness, which is why direct viewing of the laser source and its reflections should be avoided. A laser's reflective beam intensity may equal its direct beam intensity; therefore, no reflective objects or surfaces should be in the area with the laser.\nLight is radiant energy and is defined as electromagnetic radiation. It is measured in wavelengths and described in nanometers (nm). A laser produces an intense beam of light of a single wavelength (or color) and frequency. Laser intensity varies from low power (Class 1, 2, and 3A lasers), to medium (Class 3B) to high power (Class 4). The American National Standards Institute (ANSI) classifies lasers into categories and gives guidelines on laser safety in the standard Z136.1. Following are laser categories as outlined by ANSI.\nClass 1: Cannot emit laser radiation at known hazard levels. Users of Class 1 lasers are generally exempt from radiation hazard controls during operation and maintenance, but not necessarily during service. Most Class 1 industrial lasers consist of a higher class laser enclosed in a properly interlocked and labeled protective enclosure.\nClass 2: Low-power visible lasers. Emit laser radiation above Class 1 levels and radiant power not above 1mW. The human aversion reaction to bright light will protect the person from this low level. Example: a supermarket laser scanner.\nClass 3A: Intermediate-power lasers. Only hazardous for intrabeam viewing. Some limited controls are usually recommended. Example: a helium-neon laser used in the construction industry.\nClass 3B: Moderate-power lasers. Not generally a fire hazard and not capable of producing a hazardous diffuse reflection, except in instances of intentional staring at distances close to the diffuser. Specific controls are recommended.\nClass 4: High–power lasers. Hazardous to view under any condition (directly or diffusely scattered). Potential fire hazard and a skin hazard. Significant controls are required for Class 4 laser facilities. Example: an Excimer laser operating in the ultraviolet.\nA laser's danger varies depending on which area of the light spectrum it is generating. The ultraviolet radiation laser (180-400nm) causes corneal burns. Lasers in the near-infrared region (780-1800nm) cause retinal damage. These are usually Class 2, 3A, 3B and 4 lasers. The high-powered lasers, Class 3B and 4, can also cause electrical shock and skin burns. A skin cover, like opaque gloves and tightly woven fabrics, and or a \"sun screen\" may be recommended.\nA laser consists of a resonant optical cavity filled with an active medium. The medium is acted upon by some source of excitation energy. The media could be one of three types: a solid state, a gaseous state, or a semiconductor or injection-type. Solid lasers use a crystal, e.g., ruby, glass or a semiconductor (argon) as the light amplifying substance, producing a pulsating laser beam. A gaseous state laser (helium-neon) produces a continuous beam.\nFor information on the laser’s wattage or power of the laser, refer to the instruction/maintenance manual.","domain":"optical_engineering"}
{"url":"https://mycolumbusmagic.com/2312215/dos-and-donts-of-the-total-eclipse/","date":"2022-08-12T12:01:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571692.3/warc/CC-MAIN-20220812105810-20220812135810-00751.warc.gz","language_score":0.833793044090271,"token_count":338,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__32509474","lang":"en","text":"We’re counting down to the time of the #TotalEclipse and here is your last minute check list of what to do, and what not to do, before heading out to watch the eclipse.\n- ALWAYS use your solar filters or “eclipse glasses” for viewing a partially eclipsed sun.\n- Check your eclipse glasses for damage. (i.e. scratches, holes, rips, tears, etc.)\n- Keep an eye on kids who are viewing the eclipse.\n- Put on your eye protection BEFORE looking at the sun.\n- If you have traveled to the path of totality you can remove your glasses once the sun is completely covered and it’s dark outside. Once the sun reappears, put your eye protection back on.\n- If you’re outside the path of totality you must keep your eclipse glasses on the entire time.\n- Don’t use homemade filters or ordinary sunglasses for viewing the eclipse, these lenses will transmit a very unsafe and dangerous amount of sunlight.\n- Don’t remove your eclipse glasses while looking at the sun\n- Don’t look at the sun through a camera, telescope, binoculars, or other optical devices without an approved filter.\n- Do not look at the sun through the items mentioned above while you’re wearing eclipse glasses. This concentrates the suns rays and will damage your eye protection and your eyes.\n- If you use a solar filter with any telescope, camera, binoculars, etc. make sure the filter is on the FRONT.","domain":"optical_engineering"}
{"url":"https://www.ece.uvic.ca/~taolu/","date":"2021-10-22T10:13:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585504.90/warc/CC-MAIN-20211022084005-20211022114005-00518.warc.gz","language_score":0.9094729423522949,"token_count":367,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__295099918","lang":"en","text":"Department of Electrical and Computer Engineering\nRoom 321, EOW\nTelephone: 250-721-8617/2733 (Canada)\nTao Lu received his B.Sc. degree from the Department of Physics, University of Manitoba in 1995, his M.Sc. degree from the Department of Electrical and Computer Engineering, Queen's University at Kingston in 1998 and his Ph.D. degree from the Department of Physics, University of Waterloo, in 2005. He has worked in industry with various companies including Nortel Networks, Kymata Canada, Peleton etc., on optical communications. Before joining UVic, he was a Postdoctoral Fellow at the Department of Applied Physics, California Institute of Technology from 2006 to 2008. His research interests include optical microcavities and their applications to ultra narrow linewidth laser source, bio and nano photonics.\nPublications (under construction)\nhighly motivated researchers on bio and nano photonics using silica toroid shaped optical microcavity as a platform. Research assistantships to Master and Ph.D. students are now available at the Dept. Electrical and computer engineering, University of Victoria, Canada. The intended research fields include:\n1. Numerical modeling of optical microcavities;\n2. Ultra-High Q optical cavity device fabrication;\n3. Nonlinear and quantum optical effects;\n4. Highly sensitive biological detection;\n5. Nano structures on an optical microcavity;\n6. Narrow linewidth laser.\nIf you have graduated or are\nexpecting to graduate from Dept. of Physics, Electrical and Computer\nEngineering, Mathematics, Mechanical Engineering, Biology, Chemistry, Material\nScience, or any other related disciplines and interested in performing world\nclass research in these fields, please contact me.","domain":"optical_engineering"}
{"url":"https://www.ues.com/photonic-electronic-technologies","date":"2023-12-04T22:32:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100535.26/warc/CC-MAIN-20231204214708-20231205004708-00352.warc.gz","language_score":0.8620993494987488,"token_count":253,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__276252507","lang":"en","text":"Electromagnetics, high-energy lasers, imaging systems, nano electronic materials and circuitry, nonlinear optics, multiferroics\nWith our DoD partners, UES has established leadership in the research and development of photonic and electronic technologies. Our current electronic areas of focus include electro-optic modulators, multiferroics, nanoelectronics, plasmonics, and metamaterials. Our photonic research extends to laser-materials interaction testing the study of materials' performance in high temperature environments. We operate the Laser Heated Materials Evaluation Laboratory (LHMEL®), which is accessible by external users through a CRADA mechanism. Controlled laser heating coupled with operationally significant environmental simulation provides valuable data to high temperature materials developers.\nLearn more about our research and development in photonic and electronic technologies by contacting us through the form below.\nPart of the Photonic and Electronic Technologies Division, the Laser Heated Materials Evaluation Laboratory (LHMEL) provides high temperature materials characterization performance data to the United States Air Force, The Department of Defense, NASA, and commercial industry customers. This nationally unique research and development laboratory specializes in laser/materials interaction testing focused on thermal simulation in operationally significant environmental simulations.","domain":"optical_engineering"}
{"url":"http://navigatetrends.blogspot.com/2008/11/cutting-edge-video-processing.html","date":"2017-04-29T11:19:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123491.68/warc/CC-MAIN-20170423031203-00063-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9450991749763489,"token_count":410,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__65018950","lang":"en","text":"Video-Processing Technology Enabling World's First Wraparound View of Vehicles in Real Time\nFujitsu Laboratories Ltd. announced today the development of a new video-processing technology that enables a complete wraparound view of a vehicle's perimeter in real time, to enhance the driver's field of view. The new driver assistance technology adapts to different driving situations, enabling the driver to peripherally view the entire surroundings of a vehicle, from the point of view and field of view that is most appropriate for each driving situation. The technology improves driving safety by assisting the driver in a variety of situations, such as parking, passing on a narrow street, and seeing around corners at intersections with poor sightlines.\nDetails of this new technology will be presented at the 15th World Congress on Intelligent Transport Systems & ITS\nFujitsu Laboratories developed the world's first video-processing technology that enables the supplement of a field of view that can show any perspective and any sightline on the vehicle's periphery, and which can instantaneously smoothly transition from one view to another.\nFour cameras were installed around the vehicle's perimeter, and their video images of the vehicle's surroundings were synthesized by a \"3-D virtual projection/point of view conversion technology\" developed by Fujitsu Laboratories, comprised of the following: projection of the video images onto a virtual 3-D curved plane as a virtual 3-D video, and conversion of the the video images into views from any desired perspective of the vehicle's surroundings (\"omni-view\"). This technology enables drivers to easily check views from any direction or from any perspective desired, thereby alleviating the cognitive burden involved in recognizing the view that is being displayed. Additionally, when switching between different views as the driving situation changes, this new technology makes a smooth transition from one view to another by continuously interpolating points of view, fields of view, and sightlines. This helps to quickly orient the driver to the new view currently being shown, when the driver makes periphery checks.\nSource : Fujitsu","domain":"optical_engineering"}
{"url":"https://www.pvspace.org/mahmoud-zendehdel","date":"2023-12-11T18:57:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679516047.98/warc/CC-MAIN-20231211174901-20231211204901-00195.warc.gz","language_score":0.9037508368492126,"token_count":409,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__26957965","lang":"en","text":"PhD of Inorganic Chemistry and Asst. Prof. of Chemistry and Nanotechnology with more than 17 years research and industrial activities in the field of electrochemistry, photochemistry, materials science, petrochemistry, crystallography, nanotechnology and thin film PVs. He was coordinator of 5 research and innovative projects in the field of natural gas desulfurization (TRL 7), methane to methanol under ambient condition innovative reactor (TRL 7), smart electrochromic mirrors for photonic industry application (TRL 5), methane to olefin electrocatalytic system (TRL 6) and water-based nanocrystalline slurries for application in optic and photonic industries (TRL 7). He published various scientific articles and book chapters in the fields of chemistry, crystallography, solar cells, corrosion, photocatalysts, electrochemistry and computational chemistry. He also filled 13 patents in the sectors of CO2 reduction to fuels (electrocatalytic), methane to methanol (electrocatalytic), methan to olefin (EC), EC-gas desulfurization, water based polymers, methanol separation membranes, large-scale nanomaterials manufacturing, nanocomposite coatings, perovskite solar cells and modules as well as food industry by crystallization of natural sweeteners.\nHe is RDI manager of Iritaly Trading Company S.r.l and through this position he is managing the “NEXTCCUS” EU project (ERA-NET ACT 2021) and CHOH-D (semi-industrial Italian project). He is also working in University of Rome Tor Vergata, department of Electronics Engineering as a research fellow scientist with focus activity on development of highly stable perovskite solar modules and novel 2D perovskite structures. In addition, he is CEO of Kimia Solar as a knowledge based company active in manufacturing of advanced optic and photonic devices and materials.","domain":"optical_engineering"}
{"url":"http://cheeronlaser-mfg.com/laser-consumables-product/","date":"2022-12-07T23:53:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711221.94/warc/CC-MAIN-20221207221727-20221208011727-00394.warc.gz","language_score":0.731595516204834,"token_count":215,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__264840000","lang":"en","text":"Our replacement laser optics are including zinc selenide (ZnSe), as well as copper (Cu), gallium arsenide (GaAs), germanium (Ge), molybdenum (Mo), and silicon (Si). For additional information, contact cheeron laser (wechat:nacy2010-cloud, whatsapp:+86 13771335699). In addition to optics and optical components, we also offer a comprehensive line of over 750 replacement laser nozzles and accessories, all in stock and built to major OEM specifications. For more information on our replacement nozzles ， see our Nozzles & Accessories list.\nLaser cutting nozzles\nsealing washer to protect the mirror\nother spare parts\nMore information can directly contact below\nWhatsapp: +86 13771335699","domain":"optical_engineering"}
{"url":"http://www.rustinmichael.com/blog/2011/07/14/my-gear-canon-specialty-lenses/","date":"2022-05-18T08:46:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662521883.7/warc/CC-MAIN-20220518083841-20220518113841-00587.warc.gz","language_score":0.9515743851661682,"token_count":448,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__324510082","lang":"en","text":"You might remember last year I posted about my Canon L prime lenses and my Canon L zooms. This is the third post talking about the tools I typically use at a wedding and many of my film projects. You might remember how much I loved my Canon L primes lenses from my previous post, here are my specialty lenses pictured below.\nI refer to these lenses as my specialty lenses since they have limited uses and give specific looks. Both lenses offer some great advantages compared to everything else in my bag, that is the reason I use them at every wedding for specific shots. Keep reading below for a few notes about each lens and a few favorite images I took with it.\nCanon EF 15mm 2.8 FisheyeIf you are looking for a fun lens, a fisheye is one of the best! Due to the shape of the glass in this lens you get a huge amount of distortion which can be fun, but it isn’t flattering if used improperly. My Canon 15mm Fisheye gives me a 180 degree field of view and allows me to focus as close as 8 inches. With this huge field of view you really need watch your edges to make sure your foot or other body part is entering the frame. I mostly use my fisheye lenses for overviews of a wedding ceremony and for capturing fun images during the reception. Every once in a while it comes in handy when shooting a fun group shot. Check out the images below for a few examples.\nCanon EF 100mm 2.8 Macro I mainly use my macro lens at every wedding for ring shots and occasionally getting ready shots. This lens allows me to focus as close as 12 inches (film plane to subject) so I can capture the smallest details on a wedding day. When shooting details at the minimum focus distance, the depth of field is very shallow a 2.8 so I often bump it up to 5.6 or 8 which requires more light. Because if this, I always try to get details done early in the day using natural window light, if that isn’t possible bouncing a flash works well. Here are a few examples of images shot with my Canon 100mm macro.","domain":"optical_engineering"}
{"url":"https://www.prophotodc.com/copy-of-bronica-etrsi-w-150mm-f-35-used.html","date":"2023-06-05T10:10:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224651815.80/warc/CC-MAIN-20230605085657-20230605115657-00615.warc.gz","language_score":0.8436375856399536,"token_count":132,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__44545622","lang":"en","text":"10am-6pm Monday-Friday & 11am-3pm Saturday EST\nYour cart is currently empty\nProduct image slideshow Items\nThe Bronica ETRS is a medium format, Single-Lens-Reflex lens shutter camera which uses a 6 x 4.5cm (2-1/4 x 1-5/8\") negative size. This frame size is approximately 2.7x larger than the 35mm format and means that finer details in enlargements will appear \"snappier\". This compact and lightweight camera is based on Bronica's lens shutter system allowing flash synchronization up to 1/500sec.\nProduct carousel items","domain":"optical_engineering"}
{"url":"https://arrosticiniteramo.com/26/the-advantages-of-fiber-draw-towers-for-cable-production/","date":"2024-04-20T08:03:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817491.77/warc/CC-MAIN-20240420060257-20240420090257-00686.warc.gz","language_score":0.9307417869567871,"token_count":1459,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__173390418","lang":"en","text":"Fiber Optic Production Machines: A Guide To SZ Stranding Line, Fiber Coloring Machine, Fiber Draw Tower, And A Lot More\nFiber optic cabling have revolutionized the telecommunications business, supplying higher-pace data transmitting with minimum transmission damage. The production method for fiber optic cabling entails several phases, which includes fiber drawing, coloring, stranding, and second covering. To guarantee the manufacture of higher-top quality fiber optic cabling, producers count on specialised components such as SZ stranding facial lines, fiber coloring equipment, fiber attract towers, and fiber second covering facial lines. In the following paragraphs, we will offer a review of all these varieties of components as well as their value in the fiber optic cable creation method.\nThe SZ stranding line is a crucial bit of components in the fiber optic cable production method. It is actually employed to strand person fiber optic cabling in to a larger bundle or cable. The SZ stranding method entails twisting and interlocking the fibers to produce a powerful, tough cable that can endure the pressures of handling and Installation. The SZ stranding line is normally made up of a spend-away from system, a stranding equipment, as well as a consider-up system. The spend-away from system materials the individual fibers, which are then fed to the stranding equipment, exactly where they may be twisted and interlocked. Finally, the consider-up system reels in the done cable.\nFiber Coloring Machine\nThe fiber coloring machine is utilized to add a coloration covering to person fiber optic cabling. The coloring method is vital for determining and organizing fibers in the cable, permitting experts to simply separate different fibers during Installation and servicing. The fiber coloring machine generally is made up of spend-away from system, a coloring unit, as well as a consider-up system. The spend-away from system materials the fibers, which are then fed to the coloring unit, exactly where they may be coated with a colored polymer. Finally, the consider-up system reels in the done, colored fibers.\nFiber Draw Tower\nThe fiber draw tower is utilized to draw the individual fiber optic cabling from the preform. The preform is actually a specifically created rod of window or plastic material which has the essential components for producing the fiber optic cable. The fiber draw tower generally is made up of preform reloading system, a drawing furnace, as well as a winding system. The preform reloading system rss feeds the preform to the drawing furnace, exactly where it is actually heated up towards the proper heat. The fiber optic cable will be driven from your preform and injury onto a spool through the winding system.\nThe fiber second covering line is employed to apply a protective covering towards the fiber optic cable. The covering gives additional protection against physical harm and environment elements, such as moisture and heat modifications. The fiber second covering line generally is made up of spend-away from system, a second covering equipment, as well as a consider-up system. The spend-away from system materials the fiber optic cable, which can be then fed to the second covering equipment, exactly where it is actually coated with a protective polymer. Finally, the consider-up system reels in the done, coated fiber optic cable.\nFTTH Cable Production Collection\nThe FTTH cable creation line is employed to generate fiber optic cabling which can be used in fiber-to-the-residence (FTTH) applications. FTTH cabling are utilized to hook up houses and businesses to higher-pace internet networks. The FTTH cable creation line generally is made up of fiber spend-away from system, a sheathing line, a fiber coloring machine, a SZ stranding line, as well as a fiber second covering line. The fiber spend-away from system materials the individual fibers, which are then sheathed to safeguard them during the creation method. The fibers are\nthen directed with the fiber coloring machine, which brings coloration towards the fibers to tell apart them from each other. This is important for determining and problem solving any problems that may come up in the future.\nRight after coloring, the fibers are directed with the SZ stranding line, exactly where they may be twisted with each other in to a bundle. The SZ stranding strategy is frequently used in FTTH cable creation, as it enables higher loading denseness and greater tensile durability in the final product. The SZ stranding line comes with a fiber stress control system to make certain consistent stress through the entire stranding method.\nFinally, the fiber bundle is directed with the fiber second covering line, exactly where it is actually coated with a protective layer to help boost its durability and longevity. This covering also will serve to safeguard the fiber bundle from moisture, heat modifications, and other environment elements that may potentially harm the fibers.\nAll round, the FTTH cable creation line is a crucial part of the fiber optic cable production method. It enables the effective and consistent manufacture of higher-top quality fiber optic cabling which can be required for supplying higher-pace internet use of houses and businesses. Without it specialised creation line, the bulk manufacture of fiber optic cabling for FTTH applications would not be achievable.\nAnother significant part in fiber optic cable creation is the compact fiber unit (CFU). The CFU is actually a modular unit that combines several processes in one equipment, making it a cost-successful and area-conserving answer for fiber optic cable producers. The CFU generally includes a fiber spend-away from system, a fiber coloring machine, a fiber draw tower, as well as a fiber second covering line.\nThe fiber spend-away from system materials the individual fibers towards the equipment, which are then colored and drawn to the required size using the fiber draw tower. The fiber second covering line then jackets the fibers with a protective layer to improve their durability and longevity.\nOne of the crucial features of the CFU is its compact dimension. Conventional fiber optic cable creation facial lines may take up a lot of space, causing them to be unsuitable for smaller sized production facilities. The CFU, alternatively, can easily be integrated into smaller sized creation areas, making it a versatile answer for businesses of all sizes.\nIn addition to its area-conserving features, the CFU also provides greater control and modification options for fiber optic cable producers. The modular design in the CFU enables simple modification and adaptation to fulfill the precise needs of the specific creation operate. This will allow for producers to generate a wide range of fiber optic cabling with varying specs and requirements.\nIn summary, the SZ stranding line, fiber coloring machine, fiber draw tower, fiber second covering line, FTTH cable creation line, and compact fiber unit are all vital elements in the creation of higher-top quality fiber optic cabling. These specialised equipment and systems enable the effective and price-successful manufacture of fiber optic cabling for a wide range of etclbs applications, which includes telecommunications, data transmitting, and more. With out these specialised creation processes, the widespread adoption of fiber optic technologies would not be achievable.","domain":"optical_engineering"}
{"url":"http://phoslaser.com/?avada_portfolio=dfcs","date":"2019-12-11T06:00:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540529955.67/warc/CC-MAIN-20191211045724-20191211073724-00254.warc.gz","language_score":0.782591700553894,"token_count":440,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__174811465","lang":"en","text":"Professional Pipe Fiber Laser Cutting Machine\nPerformance And Technical Parameter:\n|Cutting Area of Pipe||￠20~￠250mm*6000mm, 20~180mm*6000mm|\n|Max Moving Speed||40m/min|\n|Transmison||Precision Double Drive Rack|\n|Supported Graphic Formats||PLT,DXF,IGS,AI|\n|Power of the Machine||<20KW|\n|Work Environment||5-45℃ Humidity≤80%, No Condesnation|\nThe machine can cut round pipe ￠30-￠250mm, square pipe 20-180mm, and rectangle pipe length 20-180mm\ncarbon steel, stainless steel, galvanized sheet, electrolytic plate, silicon steel, manganese steel, aluminum alloy, brass, copper etc many kinds of metal.\nKitchen appliances, sheet metal chassis, cabinets, mechanical equipment, electrical equipment, lighting hardware, advertising signs, auto parts, display equipment; many kinds of metal product, metal sheet cutting etc.\nAdvantage of the Fiber Laser Cutting Machine:\n–The machine has lowest cost and lowest cost of power. The machine can cut all kinds of metal pipe/tube with air.\n–The machine has quick cutting speed.\n–Because of the good light beam, the product has the small deformation; the appearance of the product is flat and nice.\n–With the imported servo motor and guiding transmission mechanism, the cutting accuracy is good\n—Adopt the professional software, the machine can design all kinds of the graph or the written words at will, and process immediately. The operation is flexible, easy and convenient.\n–Adopt the imported laser source, the performance is stable, key unit can work 100 thousand hours. No need to maintain the laser source.\n–Lowest cost Maintenance, No need the working gas for laser source; No need reflector for the optical fiber transmission; it can save much maintenance cost.\n–It is easy to operate the machine. No need to adjust the light path with the optical fiber transmission.","domain":"optical_engineering"}
{"url":"https://www.julight.it/","date":"2024-04-12T10:15:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00226.warc.gz","language_score":0.8656774759292603,"token_count":1097,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__153504720","lang":"en","text":"Condition Monitoring, Predictive Maintenance\nMusical Instruments, Loudspeakers\nElectric Vehicles, Valve Motion\nComponent Analysis, MEMS/MOEMS\nHeart-Rate Monitoring, Cardiovascular\nand CULTURAL HERITAGE\nNon-Destructive Testing, Conservation-Restoration\nOur scientists and engineers have brought to the market innovative and unique Laser Vibrometers and Laser Triangulation Sensors for the measurement without contact of physical quantities such as: vibration, distance, velocity. Julight represents the “Italian Excellence for Vibrations” !\nThe Laser Vibrometers product line is based on the smart Self-Mixing Interferometry (SMI) technology. Small-sized and lightweight optical head, and reduced manufacturing costs are obtained thanks to the simplified optical configuration of SMI. Ease of use and high value for money are unique characteristics of Julight’s products.\nJulight sensors and instruments can be proficiently applied to industrial sectors (automotive, aerospace, electronics, precision mechanics), scientific research (university laboratories and research centers), building and architectural environments (structural monitoring, restoration), biomedical and biological fields.\nCompact and versatile Laser Vibrometers based on the innovative SMI technology, for non-contact vibration measurements with high sensitivity and flexible working distance.\nMore than 10 versions/models.\nAcoustic and ultrasound measurement bandwidths.\nLaser Triangulation Sensors\nEasy-to-use and reliable laser sensors for non-contact absolute distance and vibration measurements.\nMore than 10 versions/models.\nWorking distance from 40mm to 1000mm, measuring range from 10mm to 300mm.\nBandwidth from 20kHz to 800kHz.\nLaser Valve Motion System\nUnique, integrated solution for combustion engine valve motion measurement.\nZero-delay laser triangulation sensors supply real-time displacement of the valve with high resolution, and displacement + velocity + acceleration signal outputs.\nOptional Laser Vibrometer allows subtraction of unwanted engine head vibrations\nThe Self-Mixing Interferometry (SMI) technology has been pioneered by Julight co-founders, and Julight owns the world’s most advanced knowledge and expertise in this field.\nIn SMI, the traditional concept of laser vibrometry and laser interferometry is revolutionized, in favor of an ultra- simplified optical configuration where the beamsplitter and reference arm of the interferometer are removed, leaving one single measurement path that goes straight from the laser source to the target.\nLight back-reflected or back-diffused by the target re-enters into the laser cavity, where interferometric mixing occurs, and the laser simultaneously operates as light source and ultra-sensitive detector.\nThe use of semiconductor laser sources with small dimensions ensures high-efficiency and compact size of the measuring head. Julight explores and develops ultra-miniaturized sensors with SMI and other technologies, for consumer electronics and biomedical applications.\nJulight collaborates with world-leading Companies, international Research Centers and Universities, aiming at creating new knowledge, new applications, and valuable IP.\nThe Innovation process at Julight starts from new ideas, goes through the validation/feasibility stage, and it is finalized by developing and assembling working prototypes and demonstrators.\nJulight has a bright track-record of successful cooperative R&D and R&I Projects, carried out with worldwide Partners, or funded by National and European Institutions.\nJulight expertise allows the development of any type of sensor or measuring instrument based on laser and photonic technologies, thanks to the solid know-how in light sources, photodetectors, electronic design, software and firmware, and opto-mechanical design.\nJulight manufactures and markets an innovative and unique class of non-contact vibration and distance measuring sensors and instruments (laser vibrometers and triangulation laser sensors), which are based on the smart self-mixing technology (SMI).\nJulight also offers state-of-the-art customized services based on the exploitation of photonic and electronic technologies, spanning from the conception and design of new measuring solutions to the realization of prototypes and small-series production.\nMeasurable physical quantities and properties include: distance, displacement, speed, flow, roughness, thickness, material composition, and many other metrological quantities.\nAngela Giffalini (CFO, co-founder) has a 25+ years’ background in financial planning and operation control. She manages the economic, financial, and administrative activities, and she is responsible for human resources.\nMauro Benedetti (Project Engineer, co-founder) has 20+ years’ experience in laser technologies applied to telecommunications and sensing. He supervises products development and customized projects.\nCEO & CTO","domain":"optical_engineering"}
{"url":"http://www.sciencepagenews.com/2020/01/02/speed-of-light-correlated-to-conduction-of-electricity-by-physicists/","date":"2020-08-12T08:33:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738888.13/warc/CC-MAIN-20200812083025-20200812113025-00114.warc.gz","language_score":0.9382972121238708,"token_count":517,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__83456254","lang":"en","text":"Speed is a fundamental factor to consider concerning the process of data transfer and computing with a positive correlation between the shift of electrons to conduct electricity and the efficiency of the respective devices. Physicists have successfully managed to improve the speed of electrons transportation at a very high speed of less than one quadrillionth of a second (femtosecond speeds) in a practical setting.\nIn this experimental setup, light waves are used to manipulate electrons with light waves which are specifically designed and created by an ultrafast laser. Even though it’s too early to be excited about this concept being integrated into our devices, it is a promising endeavor that may be realized soon.\nCurrently, the booting process of the fastest devices in the world is at a speed of a trillionths seconds (picoseconds) which is a thousandth of a femtosecond meaning we are still 1000 times slower than the discovery. The results obtained from this approach showed that electric current was switched at around 600 attoseconds (1 femtosecond is equal to 1000 attoseconds).\nAlfred Leitenstorfer, a scientist from the University of Konstanz in Germany, claims that this new venture could be the distant future of all electronic devices. This claim follows the success of the practice setting, which managed to reach the attosecond range of electron transfer with the use of single-cycle light pulses.\nTo generate a measurable current, the team using a laser managed to push out a hundredth million single-cycle light pulses every single second. This experimental setup used a nanoscale gold antenna in a bowtie shape to concentrate the electric field pulse in a gap of 6000 millionths of a meter in length.\nConsequently, the researchers were able to switch electric currents at extremely high speed, which was less than half an oscillation period of the electric field of the light pulses following the special experimental setup. Historically, it has been a challenge to go beyond the limitations of the silicon semiconductor conventional tech but as it has turned out, it’s possible to use fast oscillations of light to improve the speed of electrons.\nThe integration of light and electrons can work in diverse ways, and by use of this new technology, it can have a positive impact on the next generation of computers. Using plasmonic nanoparticles and optoelectronic gadgets it’s possible to eliminate the restrictions of current computer systems since the new projected tech uses light pulses to manipulate electrons at super-small scales.","domain":"optical_engineering"}
{"url":"http://sildenafilhomepage.com/category/health-and-medical-services/eye-care/","date":"2017-08-22T01:42:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886109803.8/warc/CC-MAIN-20170822011838-20170822031838-00337.warc.gz","language_score":0.9099968075752258,"token_count":441,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__289871198","lang":"en","text":"There are complex eye disorders and so the cures also. Eye surgery has gone a lot of developments with the advanced technology. Gone are the days with blades and painful procedures for eye surgeries. Laser eye surgery is the most popularly used advanced technique to treat eye disorders. Laser eye surgery is categorized into two types  LASIK (and  PRK and there are many variations in these surgeries.\nLASIK: It is a popular laser eye surgery done for patients with non-extreme hypermetropia, myopia and astigmatism. It has high success rate, non reversible, safe and good replacement for contact lenses and eye glasses. Since, eye is the most sensitive and highly important organ in our body it is better to have a safe treatment from an accomplished LASIK eye surgeon.\nPRK (Photo refractive Keratectomy): It is better version of LASIK to treat patients with thin corneas. In this method, the surgeon manually scraps the outermost layer of the cornea and then the underlying surface is shaped using laser to correct the vision. It is safe but more discomfort compared to LASIK and requires longer recovery duration.\nEpi-LASEK: It is version of LASEK, in which the epithelium layer is preserved, and then replaced after reshaping the stroma. The recovery is faster and less uncomfortable.\nLASEK (Laser Assisted Sub Epithelial Keratomileusis): It is an advanced version of PRK where alcohol is used for softening the epithelium and then removed.\nCustomVue IntraLasik: It is an expensive eye surgery where cornea flap is created using laser.\nConventional IntraLasik: This is the best method to make the cornea flap and needs to be sued with Waterfront technology.\nRefractive Surgery: It is a method to treat the refractive errors, replaces the use of eye glasses and contact lenses, reduce elongated corneas, myopia and hyperopia.\nLaser surgery is a boon for all type of eye ailments and one should follow the instructions of the doctor for speedy recovery.","domain":"optical_engineering"}
{"url":"http://www.bestar15scope.com/","date":"2016-02-14T03:37:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701168998.49/warc/CC-MAIN-20160205193928-00223-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.9442854523658752,"token_count":508,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__176796295","lang":"en","text":"Best AR 15 Scope\nFinding the right scope for an AR 15 can be a daunting task. With so many sizes, strengths, and manufacturers, it can become confusing. By keeping some basic factors in mind, the field can be narrowed considerably, and the choice will become clearer.\nWhat the firearm is to be used for is a primary consideration. Shooting a ten-inch target at 50 or 100 yards will require the best ar15 scope much different than a two-inch target or prairie dog at 400 yards. If a lot of practice time will be spent at a range, a large magnification may be too much for the shorter yardage. In addition, if the rifle is going to be subjected to rough handling or packed through the brush, reliability and size will have to be considered.\nFixed magnification scopes are durable, compact, can be mounted low to the barrel, and have fewer parts to break. The disadvantage is that only one magnification is possible. If the rifle is to be used for a fixed purpose, fixed magnification scopes are the best bets for the money.\nIn the past, variable-power scopes were not as rugged as fixed magnification models. While this may still be true to an extent, technology is allowing variables to be extremely rugged in the field. Variables allow the shooter to adjust for different ranges, allowing for a more versatile experience. A larger the magnification necessitates a larger objective lens, and larger objectives also allow more light to be available to the eye. They also must be mounted higher above the barrel, and that changes the way the rifleman holds his head to be able to see through the scope. Larger objective lenses also produce a bulkier rifle in the brush.\nThe eye relief may be a factor if mounting a scope on the handle of an AR 15. Since the eye will be far above the gun stock when sighting, the eye relief will have to be longer to compensate.\nWhile not technically a scope, red-dot sights and holographic sights have advantages as well. They allow the shooter to shoot with both eyes open, and since they do not magnify the target, eye relief is not much of an issue. For close in targets under 100 yards these sighting devices are an excellent choice for many hunters and target shooters.\nFinally, it is usually a good policy to purchase the best ar 15 scope you can afford. Keep in mind a person almost always gets what they pay for. So make an informed, thoughtful choice before you buy your new scope.","domain":"optical_engineering"}
{"url":"http://www.homeandheavens.com/canon-rebel-t5i-digital-camera/","date":"2018-06-19T23:39:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863259.12/warc/CC-MAIN-20180619232009-20180620012009-00391.warc.gz","language_score":0.8769153952598572,"token_count":1078,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__40114785","lang":"en","text":"Canon Rebel T5i Digital Camera\nCanon EOS Rebel T5i EF-S 18-55 IS STM Kit\nStyle: with 18-55mm EF-S IS STM Lens\nRenew Your Creative Soul\nEOS Rebel T5i\n- 18 MP APS-C CMOS sensor\n- 5 FPS continuous shooting\n- 9 point AF system, all cross type\n- ISO 100-12800 (expandable to 25600)\n- 1080 (30, 25, 24 fps) and 720 (60, 50 fps) HD video (29min limit, H.264 format)\n- 3″ articulating touch panel LCD screen with 1,040,000 dots\n- Movie Servo AF for continuous focus tracking of moving subjects\nPhoto enthusiasts rejoice! The new flagship of the spectacular Rebel Line, the EOS Rebel T5i, is here to renew your artistic side with amazing imaging features and full-featured functionality. Users will be impressed at how simple and intuitive it is to create breathtaking photos with ease. The incredible image quality and performance starts with an 18.0 Megapixel CMOS (APS-C) sensor and Canon’s superb DIGIC 5 Image Processor. Combined with an extensive ISO range of 100–12800 (expandable to 25600 in H mode), the EOS Rebel T5i boasts crisp, detailed images, even in low-light situations. A continuous shooting speed of up to 5.0 fps allows for fast action capture. 9 cross-type AF focus points help ensure crisp focus throughout the frame, and the Hybrid CMOS AF system enables speedy and accurate autofocus when shooting in Live View mode. In addition, the camera is compatible with Canon STM lenses for smooth, quiet AF performance. And the performance doesn’t stop with photos. EOS Full HD Movie mode with Movie Servo AF makes shooting high quality movies easy, and the brilliant Vari-angle Touch Screen 3.0-inch Clear View LCD monitor II makes composing fun. Seven Creative Filters, now viewable in real time, puts composition control directly in your hands and is just one of the many features of the EOS Rebel T5i that is sure to renew your creative soul.\nAmazing Capture and Processing Power.\n18.0 Megapixel CMOS (APS-C) sensor\nThe EOS Rebel T5i features Canon’s amazing 18.0 Megapixel CMOS (Complementary Metal Oxide Semiconductor) sensor. Perfect for enlargements or for cropping detailed portions of the composition, the camera’s sensor captures images with exceptional clarity and tonal range. This first-class sensor features many of the same technologies used by professional Canon cameras to maximize each pixel’s light-gathering efficiency and has center pixels that aid in the EOS Rebel T5i’s accurate AF performance. This APS-C size sensor creates an effective 1.6x field of view (compared to 35mm format).\n14-bit A/D Conversion\nWith 14-bit analog-to-digital conversion, the EOS Rebel T5i captures and records images with remarkable gradations and detail in subtle tones and colors, resulting in more realistic and detailed images. By recording up to 16,384 colors per channel, the EOS Rebel T5i ensures that the fine detail found in subjects like foliage, sky and water are preserved and recorded with a tremendous level of accuracy, ensuring gorgeous results.\nISO 100–12800 and expandable to 25600 in H mode\nThanks to its DIGIC 5 Image Processor, the EOS Rebel T5i features an expanded ISO range of ISO 100–12800 (expandable to 25600 in H mode) that makes shooting possible in situations previously unthinkable without flash. The EOS Rebel T5i, with the DIGIC 5 Image Processor’s remarkable noise-reduction technology, performs brilliantly in low-light shooting. Used with one of Canon’s EF or EF-S lenses with Optical Image Stabilizer, the EOS Rebel T5i can record beautiful images even when light sources are scarce.\nDIGIC 5 Image Processor\nThe EOS Rebel T5i’s DIGIC 5 Image Processor works with the camera’s CMOS sensor to deliver images with incredible detail in more situations, without the need for artificial light sources. With the power of the DIGIC 5 Image Processor, the EOS Rebel T5i can achieve higher ISO sensitivity, can shoot up to 5.0 fps continuously and can even perform advanced functions like HDR Backlight Control, art filters, lens correction and much more. The camera’s brilliant imaging core supercharges every facet of still and moving image capture.\nThe Speedy Rebel!\nHigh-speed continuous shooting\nThe EOS Rebel T5i can shoot up to 5.0 frames per second, continuously. Thanks to the enhanced shutter mechanism, mirror drive and camera sensor, the EOS Rebel T5i is ready for action; whether capturing that perfect expression, the game’s winning goal, or the bride walking down the aisle, the EOS Rebel T5i delivers the speed and performance to guarantee results.","domain":"optical_engineering"}
{"url":"https://www.lasikmd.com/blog/underwater-vision-eyesight-goes-blurry","date":"2023-12-06T08:50:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00276.warc.gz","language_score":0.9496128559112549,"token_count":528,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__144756493","lang":"en","text":"Underwater Vision: Why Eyesight Goes Blurry\nAs any scuba diver or snorkeler will surely tell you, underwater vision can be a fascinating and rewarding experience. The reason why your unaided vision goes blurry underwater requires a basic discussion of the behaviour of light rays and the human eye.\nBend It Like the Ocean\nLight rays bend when they travel from one medium to another, with the amount of bending determined by the refractive indices of the two media. Since water as a medium has approximately the same refractive index as a human cornea—one of the eye’s integral components that focuses images on the retina—it effectually eliminates the eye’s ability to focus during underwater vision. This is because underwater images are focused far behind the retina, resulting in a condition referred to as hyperopia, where incoming rays of light reach the retina before they converge into a focused image.\nHow Do Sea Creatures See?\nWater absorbs light much faster than air and also scatters it into three dimensions. Thus, the eyes of most sea creatures evolved in a rather darkened realm where air pressure changes significantly as the creatures move up and down in the water.\nUnlike humans, fish eyes are quite basic in that they have a fixed iris. As such, fish adjust to variations in light levels differently than us. However, along their flanks fish also have lateral lines, which are very sensitive to sound and movement and augment awareness, perhaps evolutionarily necessitated due to their relatively basic mode of vision.\nThe Diver’s Eye\nAs many divers know, by wearing a flat diving mask or goggles, humans can see very clearly underwater. The reason for this is that such a mask creates a layer of air separating one’s eyes from the surrounding water. This allows for minimal blurriness and bending of light rays, allowing you to see as much as you do above water.\nIn fact, most divers wearing a nice pair of goggles will even remark about how their vision under a clear body of water actually improves or magnifies. The reason for this is wearing a flat scuba mask or goggles will cause objects underwater to generally appear up to 33 percent larger and 25 percent closer than they actually are. So no, that pufferfish is probably not as large (or as terrifying) as it appears in the goggles’ magnification.\nVision Above Water\nOf course, if you are among those unfortunate sufferers of hyperopia outside of the water, contact the experts at LASIK MD for a consultation to see if you are a candidate for laser vision correction.","domain":"optical_engineering"}
{"url":"https://divalenza.it/uk/b/COLORED-GEMSTONES.html","date":"2022-11-27T01:47:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710155.67/warc/CC-MAIN-20221127005113-20221127035113-00875.warc.gz","language_score":0.9509114027023315,"token_count":807,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__279139331","lang":"en","text":"Today, with \"Divalenza\", we are talking about colored gemstones. The importance of an understanding, an appreciation and a keen perception of color to a gemologist should be obvious. Experience has proved that there are important dividends to the jeweler who makes a study of gemstone colors. In the western world, women tend to be much more conscious of color than men, with the result that they usually develop a much keener color perception.\nBriefly, color is a sensation resulting from a stimulation of the eye by certain wavelengths of visible light. To better understand this phenomenon, the eye can be visualized as consisting of three types of receptors, each sensitive to approximately one-third of the visible spectrum, and a fourth type that registers brightness. If the three color receptors are stimulated equally, a balanced sensation is created that the brain interprets as white or colorless.\nIf they are stimulated unequally, the perception of color results. For example, when the eye is exposed to a beam of light consisting predominantly of the longer (red) wavelengths of the visible spectrum, the sensation is red; if the radiation contains equal intensities of both red and yellow, a color that is intermediate between the two (orange) is perceived.\nDivalenza would explain to you that an object by itself has no color; instead, its color, as perceived by our eye, is the result of the specific wavelengths of light that the object can mirror or transmit. Those wavelengths not transmitted by the object, are absorbed by it. This partial absorption of certain wavelengths of light by an object that produces its color is referred to as selective absorption and it accounts for the color of all objects other than luminous bodies.\nDivalenza teaches that to point out the typical color of a gemstone, it is necessary to light it up by a source holding approximately an equal amounts of all the wavelengths of visible light. Daylight or its equivalent is used as the standard for color observation. Special artificial light sources that put out only a small range of wavelengths (e.g., the sodium-vapor lamps used in some cities for street illumination) produce only a portion of the wavelengths settled in sunlight; therefore, objects that normally appear as red or green in daylight for example, do not appear in their true color under these special lamps.\nAccording to Divalenza direction, it's not so difficult to understand the color of gemstones. The key for getting this lies in the fact that most substances transmit and reflect by the visible wavelengths of light, some are more readily than others. The predominant wavelengths stimulate the corresponding receptors in the eye to a greater extent, and thus we perceive the object as being of that color.\nThe term colorless is applied to transparent (or, for all practical purposes, nearly transparent) substances that transmit equally well a balanced spectrum of visible light; for example, a diamond without body color and a pane of glass.\nIn the sun's spectrum, which can be observed by passing a beam of sunlight through a glass prism to separate the various wavelengths, the average person can identify approximately 128 different hues, ranging from violet through red. Several combinations of red and violet that are not found in the sun's spectrum but that are observed elsewhere in nature and in man-made products account for approximately 22 additional hues. In other words, the average person can tell 150 real hues.\nThe 150 pure hues Divalenza is talking about, should not be confused with the total number of colors human eye can observe, since any given pure hue can vary from light to dark and from dull to intense. The total number of variations, or coloro, that are noticeable by an average person, is estimated at approximately 1,000,000. Fortunately, for practical purposes, we do not have to be concerned with such fine distinctions as would be involved in separating one million colors. Instead, we are only concerned with general classifications, each of which encompasses a large number of these colors.","domain":"optical_engineering"}
{"url":"https://trovelle.com/en-fr/blogs/fashion-forward/polarized-designer-sunglasses-for-under-100","date":"2024-04-15T21:54:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00613.warc.gz","language_score":0.964407742023468,"token_count":349,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__7263755","lang":"en","text":"Polarized sunglasses are a type of eyewear that have lenses that are treated with a special chemical film that helps reduce glare. Glare is caused by light that is reflected off of surfaces such as water, snow, and the hood of a car.\nWhen light is reflected off of these surfaces, it becomes polarized, meaning that the light waves are aligned in a particular direction.\nPolarized sunglasses lenses are able to filter out this polarized light, which can reduce glare and improve visibility. They are often used for outdoor activities such as driving, fishing, and skiing, as well as for everyday wear.\nPolarized sunglasses are good for a variety of activities, particularly those that take place outdoors. Some of the benefits of polarized sunglasses include:\nReduced glare: As mentioned, polarized lenses are able to filter out polarized light, which can reduce glare and improve visibility. This can be particularly useful for activities such as driving, fishing, and skiing, where glare can be a distraction or even a hazard.\nImproved contrast: Polarized lenses can also enhance contrast, which can make it easier to see details and colors more vividly. This can be helpful for activities such as golf, where being able to see the contours of the green can be important.\nUV protection: Most polarized lenses also offer protection from UV rays, which can damage the eyes and skin over time. Wearing polarized sunglasses can help protect your eyes from the harmful effects of UV radiation.\nComfort: Polarized lenses can also help reduce eye fatigue, as they can make it easier to see in bright, glare-prone environments. This can be especially beneficial for those who spend long periods of time outdoors.\nLearn more about polarized lenses.","domain":"optical_engineering"}
{"url":"http://www.casair.net/fiber-cabling.htm","date":"2019-12-14T00:23:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540569332.20/warc/CC-MAIN-20191213230200-20191214014200-00345.warc.gz","language_score":0.9546067714691162,"token_count":208,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__172242565","lang":"en","text":"Casair has the staff, equipment, and experience for any size fiber optic deployment and has been providing this as a core service since 1988.\nCasair has a full staff of certified and professionally trained fiber optic and cable installers capable and experienced in installation and cabling.\nThe Inside and Outside Plant Managers at Casair maintain a 35' bucket truck and 61' hydraulic lift as part of its fleet and carries a mass fusion splicer, boring equipment, re-generation equipment, lasers, hand holes, splice cases, fiber switches, OTDR locators and all the equipment for your deployment needs in stock in its warehouse.\nCasair provides turn key solutions for network fiber optics and is fully versed in the deployment of T1's, DS3's, Demarc extensions, POTS lines and has worked with single mode and multi-mode optics along with all types of CAT5 and CAT6 cabling. Casair has experience with aerial, underground, fiber to towers and is skilled in all things fiber optics.","domain":"optical_engineering"}
{"url":"https://scanmein.blogspot.com/2011/04/iris-vs-retina.html","date":"2021-04-15T13:45:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038085599.55/warc/CC-MAIN-20210415125840-20210415155840-00474.warc.gz","language_score":0.9564296007156372,"token_count":478,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__48516153","lang":"en","text":"I have already introduced you to retinal scanning in my previous post The King of Biometrics. However retinal scanning has a younger more lighthearted brother: the iris scan.\nTo most people scanning of the eye is all the same and people constantly mix up the terms iris and retina scans (even the U.S. Army did it see Biometric Army), my hope is that after reading this post you will never make the same mistake.\nSo let’s start by defining what an iris is as compared to the retina. I found a picture that is a good representation of this. If you look at someone’s eye, the colored section you see is the iris. That is what is scanned using an iris scanner. Behind someone’s eye is the retina, and this cannot be seen with the naked eye. That is why retinal scanners use IR rays in order to generate an image of the retina.\nNow you know the major difference between the two technologies. However I am not going to stop there. I will tell you how you can easily distinguish between the two technologies if you saw someone using them.\nA retinal scanner is considered more intrusive and is also slower. For a retinal scan the subject’s eye generally has to be within 3 inches of the scanner and the subject has to focus on a point of green light that he/she would see in the scanner. The retinal scanner scans about 400 reference points that it uses for identification processes and it takes about twenty seconds.\nAs compared to the retinal scanner an iris scanner is a lot faster taking only about two seconds. The iris scanner can be used from a much farther distance of up to two feet and uses about 240 reference point.\nSo basically if the scan is taken at a very short distance and if the scan takes a little while then it is a retinal scan, and if it is done at a longer distance and is instantaneous then it is an iris scan. Now hopefully you will never make the mistake of misidentifying the two technologies.\nIris scan sounds better doesn’t it? It is faster and cheaper but also less accurate. As I described in King of Biometrics retinal scanners are basically foolproof, which leads to an interesting post that is coming up (stay tuned).","domain":"optical_engineering"}
{"url":"https://www.macconnection.com/buy/honeywell-3800ghd-high-density-linear-imager-scanner-only-keyboard-wedge-ttl-rs-232-usb-interfaces-5v/9234621","date":"2017-08-22T13:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886110774.86/warc/CC-MAIN-20170822123737-20170822143737-00377.warc.gz","language_score":0.8144089579582214,"token_count":471,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__129484328","lang":"en","text":"- Call for next available delivery\nHoneywell's 3800g HD linear imager is optimized for applications using high-density (HD) barcodes commonly found in electronics manufacturing, telecom, aerospace and automotive. Compact, ergonomic design and class-leading durability, coupled with aggressive reading performance, makes the 3800g HD barcode scanner the ideal choice for customers who appreciate a reliable, versatile and economical solution to meet their high-density scanning needs. This image scanner has a thin line making it the ideal choice for crowded barcode labels increasing the accuracy of scanning. With a variety of applications, this high density scanner is the economical choice for industrial purposes.\n3800gHD Linear-Imaging Scanner Features and Benefits\nOptimized for High Density Scanning: Superior reading performance on 3 mil linear barcodes, plus the versatility to read other common linear symbologies\nIntuitive Aiming Line: Thin, crisp aiming line for intuitive scanning of barcode menus and densely populated documents.\nPowered by Adaptus Imaging Technology 5.0: Snappy performance, intuitive working range and the ability to read damaged or poorly printed barcodes ensures ease of use\nFuture Proof Symbology Support: GTIN compliant, GS1 DataBar capable\nReliable: Built to last with no moving parts to wear out and backed by a 5-year warranty\nPlug and Play Connectivity: All popular interfaces are on board. Includes Visual Xpress software for ease of integration\nIntuitive User Feedback: Fully programmable options for application-specific \"good read\" LED and beeper settings.\nScan Pattern: Linear Image (CCD: 3648 pixels)\nScan Speed: 270 scans per second\nDecode Capabilities: Reads standard 1D and GS1 Databar symbologies\nColor: TealScan Element Type: Visible laser diode\n5.9\"h x 3.1\"w x 4.4\"d\nHost System Interfaces: USB, TTL level RS232, Keyboard Wedge, IBM 46xx (RS-485)\nNOTE: I/F cables available separately\nInput Voltage: 5VDC +/- 0.5V\nOperating Power: 2.3W (450mA @ 5V)\nStandby Power: 430mW (86mA @ 5V)","domain":"optical_engineering"}
{"url":"https://bungalower.com/event/cat-a6-walk-pet/","date":"2021-04-16T17:44:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038088245.37/warc/CC-MAIN-20210416161217-20210416191217-00168.warc.gz","language_score":0.9085639715194702,"token_count":178,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__191135727","lang":"en","text":"- This event has passed.\nCat A6 – Walk Your Pet\nOctober 14, 2016 @ 8:00 am\nWalk Your Pet\n“Walk Your Pet” is a Robotic Pet that follows the direction of the light. The eyes of the Robotic Pet are fitted with light sensors (LDR) that sense the absence and presence of light.\nIn this challenge, student will calibrate and optimise speed of the Robotic Pet over a series of line profiles that ranges from straight line to curved line or zig-zagged line. The direction of the Robotic Pet is guided by shining the light over the light sensor. The Robotic Pet will run along path guided by the light and the fastest Pet to complete the path will be crowned the overall winner.\nThis event requires pre-registration, please contact [email protected] for more info.","domain":"optical_engineering"}
{"url":"https://mestockbroker.xyz/fresnel-biprism-experiment-87/","date":"2020-05-31T12:20:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347413406.70/warc/CC-MAIN-20200531120339-20200531150339-00370.warc.gz","language_score":0.8930156230926514,"token_count":956,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__66800266","lang":"en","text":"Fresnel’s biprism in this experiment forms two virtual images of the point source; A1 and A2, both in the plane of the focus of the lens. These two. Fresnel biprism is used to divide the wavefront of a monochromatic, coherent beam of What is meant by the virtual source in Fresnels Biprism experiment? 2. The Fresnel biprism experiment was one of the early experiments which demonstrated the phenomenon of interference between two coherent light beams.\n|Genre:||Health and Food|\n|Published (Last):||10 March 2006|\n|PDF File Size:||10.24 Mb|\n|ePub File Size:||9.72 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nMount with scale on slide mount.\nThe lens is moved along the length of bench to a position where epxeriment images of slits are seen in the plane of cross wires of eye piece. Measure the distance between the virtual light sources and, using this and the interference pattern, determine the wavelength of red light.\nNPTEL :: Basic courses(Sem 1 and 2) – Engineering Physics I (Experiment)\nColour filter set, additive red, blue, green. Fresnel’s biprism experiment Item no.: Now the lens is moved such that for frssnel position of lens, again two images of slit are seen on eye piece. Engineering Physics by Dr.\nDevice Name Item no. Determination of wave length of light.\nPrinciple Along with the Fresnel double mirror experiment, this experiment with a Fresnel biprism is another one of historical significance which was performed in the 18th and 19th centuries to demonstrate the wave theory of light.\nRegister now and keep. By doing it the one wave traverse an extra optical path and the path difference between the two waves is not same and entire fringe pattern shifts. The biprism and the screen in this case an eye piece are also mounted vertically. Light from monochromatic source is made to fall on a thin slit mounted vertically on a rigid optical bench fitted with a scale. This distance between source and eyepiece is directly measured on the optical bench scale.\nYour advantages 1 year warranty curricula compliant quality – made in Germany individual service available experiment guides online more than 5. MST-I Nov The students can use the other colour filters e. B Determination of thickness of a thin film: Downloads Catalogue and Software Download. The interference is observed by the division of wave front. To determine the thickness of transparent thin sheet micathe monochromatic source is replaced by white light source.\nSlit, width adjustable up to 1 mm. The distance between these two images of slit is measured by setting the vertical cross wire successively on experimenf of images and recording the two positions of cross wire using micrometer.\nRead superposition theory in Young double slit experiment, Condition of Maxima and Minima and calculation of Fringe width. Applications of Fresnel’s Biprism. The vertical wire of the eyepiece is made to coincide with one of the fringes and screw of micrometer is moved sideways and number of fringes is counted. The central white fringe is now shifted to another position of cross wire.\nAmita Maurya, Peoples University, Bhopal.\nFresnel’s biprism experiment\nThe eye piece can be moved in the plane perpendicular to the axis of bench using a micrometer based translation stage. A Fresnel Biprism is a thin double prism placed base to base and have very small refracting angle 0. In the second experiment, the wavelength of red light is to be determined.\nCan be used for geometric optics on the table, colour mixing and on an optical bench Extension with others sets at anytime, no additional light sources needed, recognition value for students Tasks How can refraction bring about interference of light?\nPlate mount biprizm three objects. Bottom with stem for light box.\nDescription Scope of Supply Downloads and Documents Principle Along with the Fresnel double mirror experiment, this experiment with frdsnel Fresnel biprism is another one of historical significance which was performed in the 18th and 19th centuries to demonstrate the wave theory of light.\nScreen, white, x mm. P Required Accessories print. The position of this central white fringe is recorded by focusing the cross wire of eye piece on it and taking this reading of micrometer scale. Newsletter Register now and keep up-to-date with our latest developments.","domain":"optical_engineering"}
{"url":"https://www.ebooksread.com/authors-eng/john-adolphus-flemer/an-elementary-treatise-on-phototopographic-methods-and-instruments-including-a--hci/page-13-an-elementary-treatise-on-phototopographic-methods-and-instruments-including-a--hci.shtml","date":"2022-11-29T04:50:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710685.0/warc/CC-MAIN-20221129031912-20221129061912-00207.warc.gz","language_score":0.8944931030273438,"token_count":6023,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__132965218","lang":"en","text":"A protractor may be constructed to measure these angles\ndirectly. It consists of a transparent plate on which lines are\ndrawn parallel to the principal line containing points of the\nsame azimuth and curves containing points of the same altitude.\nThe azimuthal lines are found by plotting the angles in S\nand drawing parallels to the principal line SS' through the points\nof intersection with the horizon line.\nIf we take the horizon and principal lines as axes of coor-\ndinates and denote the altitude of a point pictured as a by h>\nthe equation of the curve of altitude h may be written\nThis also is the equation of a hyperbola of which the prin-\ncipal and horizon lines are the transverse and conjugate axes\nand of which the principal point is the center.\nOne of the hyperbola's branches represents the points above\nthe horizon 'and the other branch those of equal altitude below\n156 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nThe asymptotes are lines intersecting each other at the prin-\ncipal point and making angles equal to h with the horizon line.\nThis hyperbola is the intersection by the picture plane of the\ncone of visual rays forming the angle h with the horizon.\nThese hyperbolic curves of equal altitude may be obtained by\ncomputation, using the preceding formula and substituting\ndifferent values for h, or they may be obtained graphically by\nplotting a series of points for each curve, reversing the construc-\ntion given above for finding the altitude of the pictured point a,\nFig. 73, Plate XL. The angular distance between the lines\nrepresenting points of equal azimuths or those of the same\naltitude depends on the degree of precision aimed at.\nThe complete protractor is shown in Fig. 74, Plate XL. It\nmay be made in the same manner as mentioned for the per-\nspectometer by drawing it on paper on a large scale, reducing\nit by photography, and finally making a transparency by bleach-\ning the negative in bichloride of mercury.\nD. Method of V. Legros for Locating the Horizon Line of a\nVertically Exposed Plate.\nCommandant Legros recommends the use of these hyper-\nbolic curves for the location of the horizon line of a vertically\nWhen the camera with the photographic plate adjusted in\nvertical plane is rotated horizontally, the plate remaining ver-\ntical, any point a, Fig. 74, Plate XL, will describe a hyperbola\naa' in the picture plane (on the ground -glass plate). The\nnearer a approaches the horizon line the smaller the curvature\nof its hyperbolic trace on the ground-glass plate will become,\nand that point, a, which traverses the ground-glass plate in\na straight line, HH', will have the same elevation as the second\nnodal point of the camera-lens its angle of elevation will be= -fO,\nor HH' will be the horizon line of the plate.\nTo locate the horizon line experimentally in this way the\nGRAPHICAL ICONOMETRICAL PLOTTING METHODS. 157\nground glass is best provided with a series of equidistant hori-\nzontal and vertical lines, after the manner of Dr. Le Bon's ground-\nE. Pro). S. Finsterwalder 's Method jor the Iconometric Plotting\noj Horizontal Contours.\nProf. Finsterwalder's method for plotting horizontal contours\nis well adapted for the development of the terrene forms of a\nmoderately rolling country and it is based upon the following\nThe pictured outline of a terrene form may be regarded as\nthe trace of the terrene surface in a plane (picture plane) ver-\ntical to the plotting or ground plane.\nThe camera stations should be specially selected with refer-\nence to the use of this method with a view toward obtaining\npictures with a sufficient number of such outlines, or silhouettes,\nof the terrene forms to enable the iconometric draughtsman to\ngive a good definition of the relief of the terrene to be plotted.\nThese terrene-form silhouettes may be regarded as falling\nwithin vertical planes and the rays drawn from the point of\nview to the pictured points of the silhouette will form a cone,\nwith apex in the second nodal point of the lens (or point of view),\nits base being formed by the pictured outline (silhouette) of the\nterrene. A horizontal plane containing a contour A will inter-\nsect such a cone of rays in a curve B, the latter touching A in\nIf we designate by h the difference in elevation between\nthe station (whence the picture was obtained) and the hori-\nzontal contour A, by ft the vertical angle of each radial or visual\nray drawn to each point of the silhouette, then the curve B may\nbe plotted on the working-sheet by laying off, upon a few rays,\nfrom the plotted station to points of the pictured outline the\nh cot 0,\n158 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nand the points thus located on the radials drawn from the sta-\ntion point, if connected by a continuous line, will represent the\ncurve B, plotted in horizontal plan.\nThe direction of the silhouetted outline is now plotted on\nthe plan, and where it bisects this curve B will be a point of\nthe contour A. As we, naturally, would draw not only one\ncurve B but a series of them corresponding to several horizontal\nplanes, passing through a series of contours A of various ele-\nvations, the construction may be simplified, inasmuch as the\ncurves B being the lines of intersection of the same cone of\nrays with a series of parallel planes containing the horizontal\ncontours will all be similar in shape, their corresponding points\nhaving the same relative positions with reference to the plotted\nstation, and the value h cot ft need only be determined for one\npoint of the remaining curves B if one curve B had been drawn ;\nthe others will be parallel to it.\nTHE general theory and laws of optics as applied to lenses\nare the same whether the latter are to be mounted in telescopes\nor in photographic cameras. The camera may even be regarded\nas an incomplete telescope, lacking only a suitable eyepiece to\nconvert it into a telescope.\nStill, photographic lenses are to fulfill requirements differing\nwidely from those of telescopes, the main difference being in\nthe field commanded by either. As only the central part of a\ntelescopic lens is utilized for observing, comprising a field of\nbut a few degrees, spherical and chromatic aberration do not\naffect the latter. Phototopographic lenses, however, should\ncommand as wide an angle as possible (over 60) and still pro-\nduce geometrically true perspectives without distortion, with a\nsharp definition, a uniformly bright illumination for the entire\nplane surface of the sensitive plate, and with a great depth of\nRapidity in the action of the camera-lens being desirable,\nbut not of essential importance for surveying purposes, the\nquality of the lens will in a great measure determine the value\nof the photogrammeter or photographic surveying camera.\nA. The Refractive Index.\nWith reference to Fig. 75, Plate XLI, we designate by AB\nthe refractive surface, by 57 the incident ray, by IP the refracted\nray, by CC\\ the perpendicular to the refractive surface in the\npoint where the incident ray SI enters the second medium, by a\nl6o PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nthe angle included between the perpendicular CC\\ and the inci-\ndent ray SI, and by /? the angle of refraction.\n75 being equal to IP = r, the ratio of the sines of the angles a\nand /? may be expressed by the ratio of the lines DS and EP,\nor, in other words,\nFor all angles a, larger and smaller than the one indicated\nin Fig. 75, Plate XLI, the ratio between DS and EP will be\nthe same for the same two substances.\nThis constant ratio is termed the \" refractive index \" of the\ntwo substances that are separated by the refractive surface AB.\nThe incident ray, the refracted ray, and the emergent ray (coming\nfrom the same source) are all in one plane.\nWhen speaking of the refractive index of any one medium\nin optics, it is always to be understood that the incident ray\nhas passed through air (or space). Thus we have, approxi-\nmately, if the refractive index for air or space be assumed as\nunity, the refractive index for\nWater, about 1.3\nFor crown glass, about 1.5\nFor flint glass. 1.6 to 1.9\nFor diamond, about 2.4, etc.\nThis means, for instance, that for any angle a (for any\nincident ray SI) the vertical DS is 1.5 times as long as PE if\nthe ray passes through air and is refracted by crown glass.\nB. Refraction of Light-rays.\nThe preceding consideration enables us to find the means\nfor changing the course of light-rays by refracting them to any\nWith reference to Fig. 76, Plate XLI, we have AB and\nA \\Bi = refracting surfaces of a piece of plate glass.\nThe incident ray 57 arrives at the surface AB under an angle\na with the perpendicular 1C (perpendicular to AB in 7). Glass\nbeing denser than air the ray will be refracted toward the per-\nTHE OPTICAL LENS. l6l\npendicular 1C, continuing in a straight line IE as long as it passes\nthrough this second medium (glass) ; arriving at E it passes from\nthe denser medium into air and at E it will be refracted away\nfrom the perpendicular EC\\ (under an angle a) and continue\nin the direction EP, parallel to the incident ray SI.\nBy changing the direction or position of one or of both sur-\nfaces of the denser medium (glass) the final direction of EP\nmay be given any course, since the equation\n- ~ = w = refractive index\nmust always be fulfilled.\nIt becomes plain that the change in the direction of EP from Sf\nwill increase directly with the angle included between the two\nrefractive surfaces AB and AiBi.\nIn Fig. 77, Plate XLI, this change in direction is shown for\nthree different glass prisms shaped in such a way that their\nrefractive angles not only decrease from A toward B, but have\nbeen given such values that the three rays emanating from a\ncertain luminous point 5, after refraction, converge to one\nA point P, where several converging rays (originally ema-\nnating from a point 5 in space) intersect one another, is termed\nan \" image point.\"\nC. The Optical Lens.\nIf the directions not only of three, Fig. 77, Plate XLI, but\nof an infinite number of light-rays emanating from a luminous\npoint S are to be so changed that all will converge into a point P,\nwe will have to superimpose an infinite number of prisms one\nupon the other. The heights of these prisms will have to be\nmade infinitesimally small and the refractive angles of two neigh-\nboring ones will differ by an infinitesimal small amount.\nThis means that the broken lines AB and ABi, Fig. 77,\n162 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nPlate XLI, will become curves, and a piece of glass with its\ntwo faces shaped in such a manner that all light pencils ema-\nnating from the same point S will converge to meet in its image\npoint P is termed an optical lens.\nEvidently such a lens is a body formed by rotating the fig-\nure ABB i, composed of an infinite number of prism sections,\nabout the line BB i as axis. This axis of rotation is termed\nthe optical axis of the lens, and the latter may be considered\nas composed of concentric zones or rings with spherically shaped\nouter surfaces. The question now arises what form should\nbe given the figure ABBi to obtain a lens that will produce optical\nimages of luminous points.\nOpticians can produce in the manufacture of lenses only\nspherical surfaces with any degree of precision; therefore all\noptical lenses are inclosed by spherical surfaces. Still, spherical\nlenses produce well-defined and sharp images of luminous points\nonly within certain limits, limits between which the spherical\nsurface approaches very closely that ideal shape which is best\nadapted for the purpose in view, but which cannot be manu-\nfactured owing to mechanical difficulties encountered in the\ngrinding or cutting process of the lens. In our superficial treat-\nment of the laws of optics considered inasmuch as they apply\nto phototopography only we shall assume that the spherical\nlenses are optically perfect and of a small thickness.\nThe deduction of the optical laws governing the action of\nlenses of various shapes would require complicated computa-\ntions; still, at least a general consideration of certain optical\nlaws and facts should not be omitted in this treatise on photo-\ntopography, in order to better elucidate the formation of the\noptical images and to determine such elements of the photo-\ngraphic lens as will be needed in iconometric plotting.\nGenerally speaking, we meet with so-called simple lenses\nand with combinations or sets of lenses in photography. The\nsymmetrical combinations are preferable for topographic sur-\nveying purposes, as they command a wider field or larger view\nOPTICAL DISTORTION. 163\nangle and as they are less affected with distortion and aberration\nthan is generally the case with the simple or single lenses.\nD. Optical Distortion.\nSo-called \" spherical aberration \" is more commonly pro-\nduced by those light rays which pass through the marginal zone\nof the lens, as this part of the lens is less perfect than the cen-\ntral part. Spherical aberration may be reduced by decreasing the\neffective diameter of the lens which is generally done by insert-\ning a so-called \" diaphragm \" between the lenses forming the\ncombination, or by a reduction of the curvature of the faces of\nLenses corrected for spherical aberration are known as\nIn so-called \" chromatic aberration \" the different color\nrays which compose the white light are unevenly refracted, and\ncolored, ill-defined images are the result.\nLenses corrected for chromatic aberration are termed achro-\nProbably the greatest source of error introduced into photog-\nraphy is due to distortion of the image when using an inferior\nlens. It is caused primarily by the greater refraction in the\ndirection toward the optical axis of those light-rays which pass\nthrough the marginal or border zones of the lens. When the\nimage on the ground glass of a test-screen of the form shown\nin Fig. 78, Plate XLII, assumes the form indicated in Fig. yg r\nPlate XLII, so-called \" pin-cushion distortion \" has taken place,\nwhereas an image of the form shown in Fig. 80, Plate XLII,\nis produced by \" barrel-shape distortion.\" A lens affected by\neither is unfit for phototopographic purposes.\nCommandant Moessard has invented an ingenious little con-\ntrivance the tourniquet by means of which the field or\nangle that is affected by distortion of the image may readily\nbe determined experimentally.\n164 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nAstigmatic distortion in an image is produced when well-\ndefined images of the lateral points of an image may be obtained\nfor two different positions of the ground -glass plate, and yet\nneither of these two images of the same .points will represent\nthe true shape of the original. Using a test-screen of the shape\nshown in Fig. 81, Plate XLII, radial distortion will be shown,\nFig. 82, Plate XLII, for one position of the f ocusing-glass ;\nthe distortion will be in directions radiating from the center\nof the ground-glass plate. In the other position of the focusing-\nglass tangential distortion will be observed, Fig. 83, Plate\nXLII; the distortions will appear in directions at right angles\nto the directions radiating from the center of the ground-glass\nplate. Both radial and tangential distortions increase from the\ncenter toward the extraaxial zones of the lens.\nLenses corrected for astigmatic distortion are termed anastig-\nThe distortion shown in Fig. 84, Plate XLIII, of the image\nof the test-screen, Fig. 81, Plate XLII, is due to imperfect regis-\ntering of two lenses composing a double lens; the component\nlenses are not \" centered.\"\nThe Zeiss anastigmatic lens has a perfectly flat field. That\nis to say, if the ground glass has been focused for the sharp\ndefinition of a central point, extraaxial points will also be well\ndefined on the focusing-plate.\nNearly all the older lens types were characterized by more\nor less curvature of the field, which means the focal length when\nfocusing for a central point would be longer than when focusing\nfor sharp definitions of a marginal point shown on the image\nNODAL POINTS AND NODAL PLANES OF A LENS. 165\nE. Nodal Points and Nodal Planes of a Lens.\nFormerly the thickness of a lens was disregarded when inves-\ntigating its action upon light- rays passing through it and it was\ngenerally assumed that the central rays those passing through\nthe so-called \" optical center \" of a lens suffered no change\nLenses are generally regarded as being bounded by two\nspherical surfaces. If both sides are convex (the lens is thicker\nin the center than at the edge) it is termed a biconvex or\npositive lens, Fig. 85, Plate XLIII.\nIf the spherical surfaces are concave on both sides of the\nlens (its center is thinner than its edge) it will be a biconcave\nor a negative lens, Fig. 89, Plate XLV.\nFig. 86, Plate XLIII, represents the cross-section of a con-\ncave-convex or a periscopic convex lens, the convex surface\nhaving a shorter radius than the concave surface, the lens\nbeing thicker at its center than at its margin. When the con-\ncave surface has the shorter radius the lens would be called\nconvex-concave. The principal 'elements of a lens (Figs. 85 and\n86, Plate XLIII) are:\nFirst. The geometrical centers; they are the centers C\nand Ci of the spherical surfaces forming the faces of the\nThe line passing through C and Ci is termed the principal\naxis of the lens.\nSecond. The vertices A and B of the lens are the inter-\nsections of the principal axis with the two spherical lens\nThird. The thickness AB of the lens is the distance between\nthe vertices of the lens.\nA lens is centered \" when the plane PP, passing through the\ncircumference of the lens passing through the circular line of\n1 66 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nintersection of the two lens surfaces is intersected by the prin-\ncipal axis at right angles.\nA lens-combination is centered when the planes PP\\ of the\nindividual lenses are parallel and if they are intersected by the\nprincipal axis at right angles.\nThe foci of the separate lenses should also fall upon the\nprincipal axis or the images of the discs shown on the test-screen,\nFig.. 81, Plate XLII, will show so-called \" flare spots,\" some-\nwhat like those represented in Fig. 84, Plate XLIII.\nA large flare spot, or halo, in the center of an image or\npicture may be produced by halation, caused by light- rays that\nhave passed through the diaphragm aperture being reflected from\nthe lens surfaces.\nThere exist certain relationships between the curvature of a\nlens, the distance of a luminous point from the lens, and the\ndistance of its image from the lens which we will now briefly\nAn incident ray SI, Fig. 85, Plate XLIII, will be refracted\nat / toward the radius R ( = Co/), glass being a denser medium\nthan air; it will continue through the lens in the direction /,\nand the emergent ray EP will be parallel to the incident ray SI.\nThe radii CI and C\\E are also parallel. The point C , where\nthe refracted part IE of the light-ray intersects the optical axis\nof the lens, is known as the optical center of the lens and\nthe following relation exists between its distances from the geo-\nmetrical centers and the radii of the two lens surfaces :\nThe triangles ICoC and EC$C\\ are similar.\nEvery lens has two nodal points N and NI, Figs. 85 and\n86, Plate XLIII, on the optical axis of the lens. The rays reach-\ning the first nodal point N from luminous points S in space\nare parallel with the rays connecting the second nodal point NI\nwith the corresponding images P of the luminous points.\nNODAL POINTS AND JSTODAL PLANES OF A LENS. 167\nHence a negative produced by an optical-lens system may\nbe regarded as a central projection or as a perspective image\n(the center of which coincides with the second nodal point NI),\nFig. 88, Plate XLIV.\nThe positions of the nodal points will be constant for all\nrays that make a small angle with the optical axis of the lens\n(for all rays passing through the small aperture of a diaphragm).\nThe distances of the nodal points from the corresponding ver-\ntices of the lens are constants and their values are given by the\nequations (Fig. 85, Plate XLIII)\nwhere n is the refractive index from air into glass, or w=f.\nAs the distances of the nodal points from the optical center\nand CoNi) will be small they may sometimes become\ninappreciable or=o we may omit the factors and * *\nfrom the equations (when CoN=o and CVVi=o the factors\n7^77- and * ~ l will become =i), hence\nA close approximation to the distance between the nodal\npoints will be\n1 68 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nThe planes and the points of a lens system are numbered\nin the sense of the direction of the incident rays. With refer-\nence to Fig. 87, Plate XLIV, the light is supposed to be coming\nfrom the left, hence\nN = first nodal point;\nF= first principal focus;\nFG= first focal plane;\nH U NK= first nodal plane, whereas\nNI = second nodal point; ,\nFI = second principal focus, etc.\nLengths are considered plus, or positive, if they extend in\nthe sense of the direction of the incident rays, and minus, or\nnegative, if they extend in the opposite direction. With refer-\nence to Fig. 87, Plate XLIV, where the light comes from the\nleft, we have\nFN=-f and F^i^+fr.\nThe nodal planes (passing through the nodal points and\nintersecting the principal axis at right angles) coincide with the\nprincipal planes if the extreme or outer medium of the optical\nlens system is the same, which is the case in photography where\nair surrounds the lens.\nF. Principal Foci and Focal Planes of a Lens.\nThe principal foci F and FI of a biconvex or positive\nlens, Fig. 87, Plate XLIV, are two points on the optical axis\none on either side of the lens where those incident rays con-\nverge which arrive at the refractive lens surface in a course\nparallel to the optical axis.\nIn Fig. 87, Plate XLIV, the ray S'I IV , coming from a lumin-\nous point S' at infinite distance from the lens, traverses a path\nparallel in its course to the optical axis FF\\ of the lens, and\nTHE FOCAL LENGTH OF A LENS. 169\nafter refraction converges to the point FI', while a similar ray\nPE\", coming from the opposite direction in a course parallel\nwith the optical axis, converges to F.\nThe planes FG and FiGi, passing through the foci F and FI\nand intersecting the optical axis FFi at right angles, are termed\nG. The Focal Length of a Lens.\nFN and FiNi, Fig. 87, Plate XLIV, are termed focal\nlengths and they are generally designated by the letter /. The\nvalue of the focal length is expressed by the equation\nWhen this value for /i becomes positive it is an indication\nthat the incident rays, when coming from infinite distance (parallel\nwith the optical axis), are refracted to converge to the principal\nfocus of the lens.\nA negative value for /i would indicate that the rays entering\nthe lens in a course parallel to its optical axis diverge from the\nFor thin lenses (the distance between A and B, Fig. 85,\nPlate XLIII, is very small in comparison with the lengths of\nthe radii R and RI and it may be assumed =o) the formula\nfor the focal length would read\n170 PHOTOTOPOGRAPHIC METHODS AND INSTRUMENTS.\nAfter substitution of f for w, the approximate value for the\nrefractive index of glass, the approximate value of the focal\nlength for thin lenses would be\nH. The Biconvex or Positive Lens.\nThe image of a point at infinite distance from the biconvex\nlens is on the opposite side of the lens and falls together with\nits principal focus.\nWhen the distant luminous point approaches the lens the\nimage will recede, at first slowly, but more rapidly the nearer\nthe luminous point advances toward the lens, and by the time\nthe original point will have reached a distance from the lens\nequal to its double focal length, its image will have moved to a\npoint beyond the lens, also at a distance of the double focal length.\nWhen the luminous point continues to approach the lens within\nthe double focal distance range, its image moves faster and\nfaster beyond the double focal distance on the opposite side of\nthe lens, and when the luminous point finally falls together\nwith the first focus (F) the image will disappear at infinite dis-","domain":"optical_engineering"}
{"url":"https://www.keyplan.es/en/2020/03/09/in-search-of-continuous-improvement-new-leica-blk360-laser-scanner/","date":"2024-04-22T10:41:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818105.48/warc/CC-MAIN-20240422082202-20240422112202-00645.warc.gz","language_score":0.9304373860359192,"token_count":315,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__35212653","lang":"en","text":"In search of continuous improvement: New Leica BLK360 Laser Scanner\nAt present, the 3D laser scanner is considered one of the best tools to improve both the quality and the execution times of the processes of digitization of buildings and infrastructure.\nGenerally speaking, a 3D laser scanner is a device that acquires massive data that reports a cloud of three-dimensional points on a surface. This allows us to document geometrically and visually the structure of a room, a building … etc, with great detail, speed and precision.\nThis laser has a number of advantages over other measuring tools:\n- Fast data collection\n- Millimeter accuracy in measurements\n- Quality and higher level of detail providing more specific information\n- Greater efficiency when performing measurements and checks\n- Versatility to adapt to all types of terrain as well as work schedules, since it is not affected by clarity.\nSpecifically, our latest acquisition to improve the quality of our work is the Leica BLK360 Laser Scanner, a 3D point cloud capture system with “one button” operation.\nIn addition, it integrates seamlessly into any type of BIM Project, Architecture, Installations, Engineering, Surveying and Civil Works and is capable of capturing your environment, storing a dense cloud of high precision points, and combining it with a series of panoramic images in color.\nIn Keyplan we are sure that thanks to the investment in structure and training, we will be able to reach the increasingly demanding quality standards and offer increasingly ambitious projects to our clients.","domain":"optical_engineering"}
{"url":"https://forums.wyzecam.com/t/outdoor-weatherproof-wyze-cam/6761?page=3","date":"2018-12-15T03:15:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826686.8/warc/CC-MAIN-20181215014028-20181215040028-00147.warc.gz","language_score":0.9768535494804382,"token_count":408,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__24322756","lang":"en","text":"To follow up on my post just above:\nLuke, I did find the video on YouTube showing how the camera comes apart. The back panel where the connectors are snaps apart from the main housing, but not easily. I was interested to note that in one of my V1 cameras I had two IR LEDs, and in another one I had four. Two different versions of the hardware I guess.\nMy goal in getting at the IR LEDs was to disconnect them so I could run the camera behind a glass window in night view mode (black and white with enhanced sensitivity), while mounting a high powered IR floodlight mounted outside to light up the driveway at night. I purchased an 850nm IR floodlight from Amazon (the one with 198 LEDs in a rectangular frame which takes 12 volts DC). Once I had the camera IR LEDs disconnected (by carefully cutting the circuit board path on one end of the LED), I mounted it behind the window and temporarily rigged the IR floodlight outside.\nI was very disappointed in the results because it seemed like the light wasn’t powerful enough. While it seemed to work fine in testing inside the house, once I had it set up outside it seemed like it was barely on. Then it hit me-- the double pane “low e” glass in my vinyl replacement windows was blocking a lot of the IR light getting back inside to the camera. So I temporarily moved the camera to be looking out a completely open window, and voila, I had a great night time image. Far better than you could get with just the IR LEDs mounted in the front of the camera.\nSo the bottom line is with these cameras-- if you’re planning on installing a high intensity IR light source outside, make sure the camera is also outside with it, if you have typical double pane windows. For now, I’m looking at various outdoor mounts and a location for the camera which I had hoped to avoid by disabling the camera’s IR LEDs and mounting it inside.","domain":"optical_engineering"}
{"url":"https://solarlens.co.uk/new-polarized-fire-red--black-custom-lens-for-oakley-half-jacket-xlj-880-p.asp","date":"2020-05-28T07:05:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347398233.32/warc/CC-MAIN-20200528061845-20200528091845-00066.warc.gz","language_score":0.8070716261863708,"token_count":165,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__60054701","lang":"en","text":"NEW POLARIZED FIRE RED / BLACK CUSTOM LENS FOR OAKLEY HALF JACKET XLJ\n· Color fire red black\n· 100% polarized to reduce glare\n· 100% UVA,UVB&UVC protected\n· 12% light transmission\n· Lens material polycarbonate\n· Exact fit to frame\n· Scratch resistant\n· Water repel\nThis is band-new highest quality lens perfect for bright light condition, and they will give you 100% UV protection also they are 100% polarized to reduce the glare to make sure you get best possible performance of this lens.\nThis lens is meet all sun protection international standards.\nDeclaration: this is after market lens, and is not affiliated with Oakley in any way!!!\n- Brand: Solar lens","domain":"optical_engineering"}
{"url":"http://nobleled.com/support/How-is-the-traffic-signal-controller-work/","date":"2019-05-19T06:51:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232254253.31/warc/CC-MAIN-20190519061520-20190519083520-00474.warc.gz","language_score":0.8688983917236328,"token_count":219,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__54600754","lang":"en","text":"Traffic Control Solution Provider\nHow is the traffic camera detector and traffic signal controller work\nSystem working connection:\nAn actuated vehicle traffic signal with a traffic video detector for the intersection.\nhow is the traffic system work?\n1.the traffic camera detector will scan the road, and analysis there have a vehicle on the road or pass the road or not. if there have a vehicle pass the road, the camera video detector will output a signal to the traffic signal controller.\n2.the traffic signal controller receives a signal from the camera detector, it will operation and give green signal time to the signal light.\n3.the traffic camera not only for detection the vehicle, also can used for NVR(traffic accident record).\n4.if the traffic camera fault, it will output an error signal to the traffic signal controller. Then the traffic signal controller can run the plan program.\nmore about the system:http://www.nobleled.com\nonline talk:wechat/whatsapp/Zalo:+8613927455427 Alan","domain":"optical_engineering"}
{"url":"https://www.watchobucket.com/best-4-16-scope/","date":"2022-07-01T07:21:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103922377.50/warc/CC-MAIN-20220701064920-20220701094920-00108.warc.gz","language_score":0.838283360004425,"token_count":2893,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__231016332","lang":"en","text":"You can trust our selection for 4-16 Scope Reviews. Because We have worked hard studying and analyzing 62698 reviews for 4-16 Scope and rating them. It was a difficult job to list only ten products for 4-16 Scope where thousands of them available online. I hope it will help you to take final decision for Best 4-16 Scope.\nComparison Chart for Best 4-16 Scope\nOur team scanned 62698 reviews before putting any suggestions for the 4-16 Scope in this article.\n|1||Burris Eliminator 4-16x50mm Laser Rangefinding Rifle Scope with Ballistic Calculator||9.8||Check Price On Amazon|\n|2||Vortex Optics Crossfire II 4-16x50 AO||9.4||Check Price On Amazon|\n|3||Vortex Optics Viper HS-T 4-16X44 VMR-1 MOA||9.2||Check Price On Amazon|\n|4||Vortex Optics Viper HS LR 4-16x50 Second Focal Plane Riflescope - Dead-Hold BDC Reticle (MOA) (VHS-4307-LR)||9.2||Check Price On Amazon|\n|5||ohhunt 4-16X44 Rifle Scope First Focal Plane FFP Hunting 4-16 Rifle Scopes with High Profile Scope Rings||9||Check Price On Amazon|\n|6||Vortex Optics Diamondback Tactical 4-16x44 First Focal Plane Riflescopes - EBR-2C (MOA) Tactical Reticle||8.8||Check Price On Amazon|\n|7||Burris Fullfield IV 4-16x50mm Hunting Rifle Scope||8.8||Check Price On Amazon|\n|8||UTG 4-16X44 30mm Scope||8.4||Check Price On Amazon|\n|9||Hawke Sport Optics Riflescope - Vantage 4-16X50AO Mil Dot IR||8.2||Check Price On Amazon|\n|10||UUQ 4-16x50 AO Rifle Scope Red/Green Illuminated Range Finder Reticle W/Green Laser - Holographic Reflex Red Dot Sight - 5 Brightness Modes Flashlight||8.2||Check Price On Amazon|\n1. Burris Eliminator 4-16x50mm Laser Rangefinding Rifle Scope with Ballistic Calculator\n- PRECISION SCOPE – Rely on the Eliminator to determine the distance of your target, factor your trajectory and illuminate the perfect holdover.\n- MAKE HUNTING MORE EFFICIENT – Eliminate the extra variables and guesswork, and make your next hunt efficient and productive.\n- LONG-DISTANCE RANGEFINDER – This laser rangefinder features 1, 200+ yards ranging capability, increasing the distance at which you can take an ethical shot.\n- LASERSCOPE TO INCREASE ACCURACY – With precision, this laser scope will significantly extend the range and accuracy of your favorite gun.\n- STATE-OF-THE-ART OPTICS – Count on the built-in inclinometer to prove accuracy in a variety of conditions, including shooting up or down steep hills.\n- 25 feet at 100 yards (low) to 9 feet at 100 yards (high) field of view\n- 10.5 millimeters (low) to 3.5 millimeters (high) exit pupil\n- 50-Inch at 100 yards maximum adjust\n- 13-Inch long\n- Weighs 26 ounces\n2. Vortex Optics Crossfire II 4-16×50 AO\n- The 4-16×50 Adjustable Objective Crossfire II riflescope is one of many configurations in the Crossfire II line.\n- The adjustable objective provides image focus and parallax removal to the shooter while anti-reflective, fully multi-coated lenses provide bright and clear views.\n- With long eye relief and an ultra-forgiving eye box, you’ll be able to quickly get a sight picture and acquire your target.\n- Capped reset turrets are finger adjustable with MOA clicks that can be reset to zero after sighting in.\n- A single piece tube constructed from aircraft grade aluminum ensures strength and shockproof performance.\n3. Vortex Optics Viper HS-T 4-16X44 VMR-1 MOA\n- The Viper HS-T 4-16×44 is one of multiple configurations in the Viper HS-T (Hunting & Shooting Tactical) line.\n- Incorporating our premium, fully multi-coated, extra-low dispersion lenses brings excellent resolution and color fidelity.\n- The exposed target-style turrets are constructed for precise and repeatable finger-adjustable clicks.\n- A 4x zoom provides magnification versatility while the side focus parallax adjustment provides optimal image focus and parallax removal.\n- The one-piece tube is o-ring sealed and argon purged to ensure waterproof and fogproof performance.\n4. Vortex Optics Viper HS LR 4-16×50 Second Focal Plane Riflescope – Dead-Hold BDC Reticle (MOA) (VHS-4307-LR)\n- A subset of the Viper HS line, the Viper HS LR (Hunting & Shooting Long Range) 4-16×50 Second Focal Plane scope is perfect for when you need to extend your shooting range and bullet drop and wind drift compensation are crucial.\n- The Dead-Hold BDC reticle is good for any hunting or shooting at varying ranges where estimating hold-over would be a concern.\n- In the advanced optical system, the XD glass renders an image that is sharp and clear from edge to edge.\n- The HS LR offers exposed target-style elevation turrets for dialing elevation at extended ranges.\n- Ultra-hard, scratch resistant Armortek coatings protect the exterior lenses of the scope.\n5. ohhunt 4-16X44 Rifle Scope First Focal Plane FFP Hunting 4-16 Rifle Scopes with High Profile Scope Rings\n- Type:4-16X44 First Focal Plane Rifle Scopes Long Range Scope,Optical Coating:Fully multi-coated optics,Reticle Construction: Glass Etched Reticle,Parallax Adjustment : Side Parallax Adjustment,Windage/Elevation Lock : Yes,Fogproof / Shockproof :Yes,Illuminated Reticle: No.\n- Magnification:4X-16X,Objective Lens (mm):44,Net Weight(g):550,Length(mm):316 with Sunshade 385mm,Eye Relief(inch): 3.\n- Sealing gas used:Nitrogen,Range of Function temperature (Unit can still be operated):-25°C to +55°C,Storage temperature:-40°C to +85°C.\n- Include：ohhunt 4-16X44 FFP Rifle scopesX1, box X1,cleaning cloth X1,Lens cover X1,Sunshade X1,lnstruction X1,Throw Lever X1,Picatinny Scope Mount Rings.\n6. Vortex Optics Diamondback Tactical 4-16×44 First Focal Plane Riflescopes – EBR-2C (MOA) Tactical Reticle\n- The Diamondback Tactical First Focal Plane 4-16×44 stands at the intersection of precision and value, delivering an impressive array of features and performance.\n- Extra-low dispersion glass and fully multi-coated lenses transmit a crisp, bright sight picture.\n- The precision-glide erector system uses premium components in the zoom lens to ensure smooth magnification changes under the harshest conditions.\n- Exposed tactical turrets and a side parallax knob give shooters the tools needed for long distance precision shooting.\n- The single piece 30mm tube is shockproof, ruggedly built to withstand recoil and impacts.\n7. Burris Fullfield IV 4-16x50mm Hunting Rifle Scope\n- popular and premium traditional hunting riflescope at an affordable price; high-grade optical glass provides excellent brightness and clarity with lasting durability.\n- improved 4x zoom system with premium, multi-coated lenses for edge-to-edge clarity and low light performance; durable, integrated-eyepiece design has no-slip grip for easy adjustment in the field.\n- sleek new design with finger adjustable turret knobs; wide selection of reticles for both hunting and long-distance target shooting.\n- side parallax adjustment and focus as close as 10 yards allows for fine tuning for crisp views perfect for all platforms including rimfire and air guns; positive steel-on-steel adjustments assure repeated accuracy.\n- nitrogen-filled 1-inch scope tube prevents fogging, even in cold and rain, and is waterproof; guaranteed by the burris forever warranty.\n8. UTG 4-16X44 30mm Scope\n- 30mm Tube with Best in Class Emerald Lens Coatings to Achieve Maximum Light Transmission for Best Clarity, Built on True Strength Platform, Completely Sealed and Nitrogen Filled, Shockproof, Fogproof and Rainproof.\n- 4X to 16X Power with Quick Power Selector Ring Perfect for Target Acquisition and Zooming In, 1-Click Technology for Quick Access to Your Favorite Color and Brightness in Reticle.\n- Field of View @ 100 yards: 24.\n- Premium Zero Lockable and Zero Resettable Target Turrets with Most Consistent and Precise 1/4 MOA per Click Adjustment, Side Wheel Adjustable Turret (SWAT) for Parallax Adjustment – From 10 Yards to Infinity.\n- Mil-dot Range Estimating Reticle with Built-in Integral Sunshade for Most Optimal Aiming and Shooting Performance, Complete with UTG Max Strength Twist Lock Picatinny/Weaver Rings and High Quality Flip-open Lens Caps.\n9. Hawke Sport Optics Riflescope – Vantage 4-16X50AO Mil Dot IR\n- Mil Dot IR Illuminated Reticle\n- 5 Brightness Levels in Red or Green\n- 1″ One-Piece Maintube\n- 1/4 MOA / Click Impact Point Correction\n- 11-Layer Fully Multi-Coated Optics\n10. UUQ 4-16×50 AO Rifle Scope Red/Green Illuminated Range Finder Reticle W/Green Laser – Holographic Reflex Red Dot Sight – 5 Brightness Modes Flashlight\n- NEW ADD ON: 5 lighting modes LED flashlight (high/ medium/ low/ strobe/ SOS) can satisfy your hunting needs in dark environment.\n- NEW UPGRADE: Adjustable objective with parallax from 15 Yds.\n- NEW CONTROL SYSTEM: Reflex sight uses new electronic button control system for easier setup and operate.\n- Each scope part has universal 20mm mount individually, detachable and fit standard 20mm picatinny or weaver rail.\n- Made of high-strength aluminum alloy.\n- First, our algorithms collected as much information available about these products from trusted sources.\n- We employed both Artificial Intelligence and large data volume to validate all collected information.\n- Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best 4-16 Scope currently on the market!\n- Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.\n- Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top 4-16 Scope based on that.\n- Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.\n- Customer Ratings: The hundreds of customers using the 4-16 Scope before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.\n- Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the 4-16 Scope they used.\n- Seller Rank: Now, this is interesting! You don’t just need a good 4-16 Scope, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.\n- Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your 4-16 Scope before putting them on the list.\n- Durability: Durability and reliability go hand to hand. A robust and durable 4-16 Scope will serve you for months and years to come.\n- Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good 4-16 Scope if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.\n- Negative Ratings: Yes, we take that into consideration too! When we pick the top rated 4-16 Scope on the market, the products that got mostly negative ratings get filtered and discarded.","domain":"optical_engineering"}
{"url":"https://nabtahealth.com/product/platinum-led-mask/","date":"2022-10-04T17:41:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337516.13/warc/CC-MAIN-20221004152839-20221004182839-00756.warc.gz","language_score":0.9234234094619751,"token_count":480,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__73871090","lang":"en","text":"Platinum LED Mask is the most innovative and powerful LED device with 1026 diodes currently available in the market. Using patented and NASA-derived LED technology, face mask promotes skin beauty and health within a cellular level. Different photo-therapy modes allow to customize it to treat any and every skin concern.\nThis product is available at our clinic in Dubai.\nPlatinum LED Mask is the 4th generation device that uses a patented Near Infra Red (NIR) technology (derived from NASA) to penetrate the skin 12 times deeper than any other mask or LED device on the market.\nPhoto Biomodulation (PBM) process stays behind the effective mechanism to promote tissue repair, cell regeneration, and renewal, reduce inflammation, and accelerate healing. PBM is about light that goes inside the tissue, increasing cell viability by stimulating the synthesis of ATP. By activating fibroblasts and procollagen synthesis, LED phototherapy has various skin improvement effects, such as elasticity and transparency, hydration, skin brightness, and soothing skin complexion. Improves the pore capacity of\nstretched pores to increase the firmness of the skin. Increase the vitality and smoothness of skin around the eyes.\nCELLRETURN was founded by Mr. IL Soo Kim in 2006 to provide healthy beauty that shines every day by restoring your skin’s health. The company spent more than 70,000 hours researching the most effective LED wavelength for the skin. Our unique technology received a patent for an LED module that delivers only safe and effective LED wavelengths on the skin and in 2014 CELLRETURN became the first company to create the very first LED mask on the market.\n\"I’m so excited to be working with the global CELLRETURN team to bring this incredible technology to the UAE. I first came across these incredible LED face masks when researching LED and Near Infra-Red (NIR) light (and their anti-inflammatory properties), to help manage my chronic migraine condition.\"\n\"I do genuinely believe it can make a significant and positive difference to our skin health – helping with many conditions from inflammation to slowing the visible signs of aging itself.\"\nRestores the skin from within using light therapy\nTried and tested by doctors\nUses NASA's LED technology","domain":"optical_engineering"}
{"url":"https://hands-tool.com/products/liquid-crystals-adjustable-sunglasses","date":"2021-01-18T17:27:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703515075.32/warc/CC-MAIN-20210118154332-20210118184332-00291.warc.gz","language_score":0.8824388384819031,"token_count":270,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__264209328","lang":"en","text":"Liquid Crystals Adjustable Sunglasses Free Shipping\n- Rush Delivery Available.\n- 99.8% of Reviewers Recommends This Product.\nThis Liquid Crystals Adjustable Sunglasses is our best selling, light, premium pair of sunglasses that use unique polarized lens technology.\n✅ Polarized Liquid Crystal Lenses\n✅ UV400 and Anti-Glare Protection\n✅ Comfortably keep your eyes protected\nMany polarized sunglass users are drawn to them by their capabilities when driving or out in the sun.\nUnfortunately, traditional lenses turn dark by UV activation. Since car windows filter out UV light, the lenses remain clear while in the car.\nThe Liquid Crystals Adjustable Sunglasses, With its unique lens style, they're able to properly block sunlight and UV rays just by tinting the lens.\nMONEY BACK GUARANTEE\nWe want you to be 100% satisfied with the products you buy from us. If for ANY reason you are not satisfied with your purchase, we offer an iron-clad money-back guarantee.\nBuying online can be a daunting task, so we want you to realize that there are absolutely ZERO risks in buying something and trying it out. If you don’t like it, we’ll make it right… It’s our promise!","domain":"optical_engineering"}
{"url":"https://www.ornatesolar.com/seoul-viosys/","date":"2020-08-14T04:28:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439739177.25/warc/CC-MAIN-20200814040920-20200814070920-00340.warc.gz","language_score":0.8810729384422302,"token_count":194,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__63081662","lang":"en","text":"WE ARE SEOUL VIOSYS\nEstablished in 2002 Seoul Viosys is a leading global LED component manufacturing company based out of South Korea. It has approximately 4000 patents which make it differentiated technology a leader in the market with a sales revenue of over 3000 billion.\nOrnate Solar >< Seoul Viosys\nVioleds is a patented technology that includes UV LEDs, UV LED fixtures, and UV LED systems.\nIt uses special LEDs that emit in the ultraviolet spectrum and can be used for disinfection,\ndeodorization, phototherapy, and curing realized by the collaboration of Seoul Viosys and SETI.\nVIOLEDS TECHNOLOGY PROVES 99.9% DISINFECTION OF CORONAVIRUS IN 30 SECONDS\nPLUG AND PLAY\nReplace your UV-C Tube system with our Plug & Play system developed for these LEDs\nBENEFITS OF UV LEDs vs UV LAMPS","domain":"optical_engineering"}
{"url":"https://www.redchip.com/stocks/LWLG","date":"2024-04-17T09:55:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817146.37/warc/CC-MAIN-20240417075330-20240417105330-00578.warc.gz","language_score":0.9044003486633301,"token_count":127,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__180471157","lang":"en","text":"Lightwave Logic, Inc. (NASDAQ: LWLG)\n$4.00 N/A ( 0% ) N/A\nLightwave Logic Inc is a United States-based development stage company moving toward commercialization of next-generation electro-optic photonic devices made on its P2IC technology platform which uses in-house proprietary high-activity and high-stability organic polymers. Electro-optical devices convert data from electric signals into optical signals for multiple applications. It designs and synthesizes organic chromophores for use in its own proprietary electro-optic polymer systems and photonic device designs.","domain":"optical_engineering"}
{"url":"http://communications.uniza.sk/index.php/communications/article/view/1538","date":"2021-12-04T07:17:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362952.24/warc/CC-MAIN-20211204063651-20211204093651-00539.warc.gz","language_score":0.9113883376121521,"token_count":199,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__68172477","lang":"en","text":"The System of Facial Recognition in the Infrared Range\nIn this paper, a new approach is introduced upgrading the complex object recognizing monitoring system up to the image processing system capable of operating both in the visible and the infrared wavelength ranges. For this purpose, both new algorithmic software and user interface are provided that require from the operator neither special knowledge, nor specific competencies in the fields of object detection, tracking and recognition, while allowing determining the thermal imager parameters necessary for constructing a high-quality image of an object. There are formulated the conditions required for obtaining such image that, by its quality, would make the satisfactory detection of the desired object possible. By means of the conducted tests, it is demonstrated that the application of the proposed mathematical and algorithmic support of the complex monitoring and control system provides the solution for the problem of the highly accurate individual recognition.","domain":"optical_engineering"}
{"url":"https://www.chnm.pl/intelligent/908/resolution-flashlight-camera-llsy.html","date":"2021-05-18T07:56:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989756.81/warc/CC-MAIN-20210518063944-20210518093944-00135.warc.gz","language_score":0.8646199703216553,"token_count":2167,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__20996832","lang":"en","text":"resolution flashlight camera llsy\nCamera Module, Camera Module The Raspberry Pi Camera Modules are official products from the Raspberry Pi Foundation The original 5-megapixel model was released in 2013, and an 8-megapixel Camera Module v2 was released in 2016 For both iterations, there are visible light and infrared versions A 12-megapixel High Quality Camera was released in 2020ToolSmart Flashlight Video Inspection Camera | General ,, Camera Lighting: Three 2-watt LEDs delivering 150, 300 and 600 lumens at 25%, 50% and power Camera Field of View/Depth of Field: 62°/24 in (60mm) to infinity Video Resolution,GitHub, Quick photo and video camera with a flash, customizable resolution and no ads simplemobiletools Topics android kotlin photos flash opensource video camera Resourc Readme License GPL-30 License Releases 75 530 Latest ,Sensor and pixel sizes, The quite popular camera resolution of 1600 x 1200 pixels often uses a somewhat larger sensor with 1/18\" with the same pixel size In general there is the trend that the sensors become smaller and smaller on the mass camera market If a standard VGA sensor had, in some cases, a size of 2/3\" in the late 1980s, it is only 1/3\" today4MP or 8MP: What Camera Resolution Means for You, What type of camera resolution should I get? So should you get a 4MP or 8MP? Well, it depends on what you need the camera for As a general rule of thumb, a higher resolution is better, but that also means you have to account for more storage and bandwidth In situations where you want a clearer picture, a higher resolution camera is preferable.\nUV Cameras, New - Small, Low Cost USB 20 camera compatible with PC, Mac, Linux, Android and Wince Comparison of stock RGB camera versus monochrome UV-Only camera and UV-Only flash Half of face has sunscreen Equipment Setup - Canon 6D modified for monochrome UV-VIS-IR-Canon 18-55 EFS camera lens - Canon 580EX-RT flash modified for UV-OnlyCamera Glossary, Jun 11, 2014· 1-inch sensor: A relatively large image sensor used in advanced, compact Nikon, Sony and Samsung digital cameras It's only 13 percent the size of ,Stealth Cam 4K Series Digital Trail Cameras | DS4K & More, The DS4K is equipped with dual image sensors One optimized for low light night time imaging and the other for hi-resolution day time photos & videos 100 ft NoGlo infrared flash range and ultra fast trigger speed less than 04 secondsImaging Resource Digital Camera Test Methods, All of our VFA tests are shot in a darkened studio, with the only illumination on the target coming from the camera's on-board flash (provided of course that the camera has an on-board flash)1080p HD Security Cameras, 1080p AHD ,, The image is stretched to 720p resolution because it was captured while connected to an iDVR-E recorder at full screen Click on the image to see the full sized view and compare it to the HD camera image below 720p High Definition CCTV Camera Image Here is a still image captured by an AHD HD security camera at 720p resolution.\nFlashlight Camera, Flashlight Camera free download - IP Camera Viewer, Chicony USB 20 Camera, Logitech QuickCam Pro Camera Drivers, and many more programsCamera Lens Quality: MTF, Resolution & Contrast, At large apertures, resolution and contrast are typically limited by light aberrations An aberration is when imperfect lens design causes a point light source in the image not to converge onto a point on your camera's sensor At small apertures, resolution and contrast are typically limited by diffractionCameras for Microscopy, Suitable for: Wide Field, Multi-Dimensional, Immunofluorescence, Light Sheet, Super-Resolution, TIRF, Rapid Ion Signalling, Fluorescence Sona 42 & Sona 20 : Two NEW deep-cooled sCMOS cameras, 95% QE, deeply cooled to -45°C, up to 70 fps and largest on-sample field of viewImaging Electronics 101: Understanding Camera Sensors for ,, Table 2: This table shows camera resolution by pixel size One issue that often arises in imaging applications is the ability of an imaging lens to support certain sensor siz If the sensor is too large for the lens design, the resulting image may appear to fade away and degrade towards the edges because of vignetting (extinction of rays ,What is the Resolution of the Human Eye?, Megapixels / Resolution of Human Eye Most of the people have heard that our eyes have a resolution of 576 megapixels But this is not true If we really measure the rate of megapixel, it will be closed to 7 megapixels When you look at something, the reflection of that ,.\nDetection, Recognition, and Identification, Jun 21, 2016· Resolution required for Recognition, Detection, Identification depends on the type of camera By Bob Mesnik There is some confusion in the industry about how much camera resolution is required to detect an object, recognize the type of object, or identify exactly what or who it is The criteria are different between thermal and optical camerasVCam, Virtual Camera e2eSoft VCam is a Webcam Emulator, which emulates a webcam in your system and works like a real one It can be used in most of the applications which use webcam, such as IM software, video broadcasting, video conferencing, video teaching, remote education, video chatting etcThe Resolution of the Human Eye Tested Is 10MP, At this light level, only the 720p and 1080p cameras produced usable images of the chart Human subjects were able to make out line 5 on the chart, equal to 20/40 vision (PECFD) The 720p camera was able to resolve line 2, equal to 20/100 vision, with others below becoming unclear And moving up to 1080p resolution, line 3, 20/70, can be readResolution | Understanding Resolution in Digital Photography, Resolution can be identified by the measurement of pixels in dimensions of height and width For example, a camera manufacturer can describe the resolution of the camera as 3904×2598 (W x H) pixels, which again can be termed as 3904×2598=10,142,592 pixelsMini LED Flashlight Spy Camera Video Recorder, *Flashlight shape video car camera *PC CAM function *View angle :72degree *video resolution 720*480 *Photo format:1280*1024 Features: *Image Sensor :1/4 COMS *Physical pixel :Array 20million *Lens Mount :28mm *View angle :72degree *Video Compression MJPEG *Video Resolution :720*480 VGA *Camera Resolution: 1024*1280 *Recording Frame: 30fps.\nAngular resolution, Angular resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolutionIt is used in optics applied to light waves, in antenna theory applied to radio waves, and in acoustics applied to sound wavGet Camera Flashlight, Turns your phone into a flashlight by activating the camera's flash Note: Only Phone's with a Camera Flash are supported Also the Lumia 1020 is not supported VERSION 22 -Flashlight now stays on under lock screen -Added settings page VERSION 21 -Flashlight turns on when app starts up VERSION 20 -Added Support for Windows Phone 80, 81 ,How to Change Camera Picture Resolution Galaxy S10 ,, Apr 03, 2019· For example my s8 thats updated to android pie every resolution change is tied to a aspect ratio,likewise you can change the setting in camera seeting (which is missing in the s10) or the using the aspect ratio shortcut in camera as with the s10 shown hereDigital Camera Resolution | HowStuffWorks, 256x256 - Found on very cheap cameras, this resolution is so low that the picture quality is almost always unacceptable This is 65,000 total pixels 640x480 - This is the low end on most \"real\" cameras This resolution is ideal for e-mailing pictures or posting pictures on a Web site 1216x912 - This is a \"megapixel\" image size -- 1,109,000 total pixels -- good for printing pictur4K Hidden Cameras: Highest resolution hidden camera ,, The Hidden Camera Rock now gives you (2880 x 2160) 4K high resolution, 128GB video storage capacity, and a super wide angle 140 degree lens A 90 day standby life battery will give you 16 hours of constant recording but the body heat sensing PIR,.\nColor ultra Low Light true Night Vision imaging Camera module, The videos below were filmed at night with the x27 color HD low light security camera at night time click on the videos below to play and see the actual image quality from real X27 color night vision camera output, RAW HD imagery from the sensor displays much ,Change your Google Camera app settings on your Pixel phone, Open your Google Camera app Learn how Tap More Panorama Tap Capture Hold the lens steady while you move the camera horizontally Be sure to keep the white frame aligned To take a vertical panorama, rotate your phone vertically Then, move your camera up or down When you're done capturing your image, tap Stop recordingAmazon: high resolution webcam, PC Webcam for Streaming HD 1080P, Vitade 960A USB Pro Computer Web Camera Video Cam for Mac Windows Laptop Conferencing Gaming with Microphone & Ring Light 44 out of 5 stars 2,504 $5887 $ 58 87 $6999 $6999Flashlight Hidden Camera w/Built in DVR, It records in crisp clear 1280x720 resolution at 30fps on a 16GB micro SD card which allows you to store about 5 hours of video footage The LED flashlight has a magnesium alloy body which resist against shock It has a IP68 rating which makes the flashlight dust and water proofCCTV Security Cameras, CCTV Camera, Analog (CVBS), The highest resolution that analog cameras and DVRs support is 960H video resolution, which is 960 x 480 pixels This is a wide format 16:9 aspect ratio Prior to the advent of 960H resolution, D1 was the highest resolution D1 resolution is 720 x 480 pixels This is a 960H resolution image captured with this dome CCTV camera.","domain":"optical_engineering"}
{"url":"https://handheldbarcodescanner.wordpress.com/2014/05/27/learn-about-various-barcode-reader-systems/","date":"2018-06-22T22:30:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864822.44/warc/CC-MAIN-20180622220911-20180623000911-00462.warc.gz","language_score":0.9135443568229675,"token_count":1120,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__101020758","lang":"en","text":"Barcode readers make certain much better functioning of small business processes with efficient and accurate automatic identification of merchandise. A variety of barcode technologies have evolved that help in tracking inventory tracking, monitoring stock movement, increasing operational efficiency, enhancing employee productivity, etc. Numerous types of barcode technologies are utilized successfully across a variety of sectors like healthcare, hospitality, retail, manufacturing, distribution, warehousing, etc.\nBarcode Reader Technologies\nDeciding on which barcode reader technologies depends upon the kind of barcode that will be scanned, the atmosphere in which it will likely be employed, along with the connection form expected (i.e. USB, serial, or keyboard).\nOmnidirectional Barcode Scanners\nOmnidirectional barcode scanners disperse laser beams in just about every direction generating it attainable to read the barcode from every feasible angle. A rotating mirror and also a set of fixed mirrors are used in omnidirectional barcode scanners to generate the pattern of laser beams. These scanners have higher barcode scanning capability with scan ranges varying amongst handful of inches to a number of feet. Omnidirectional barcode scanners is usually place to make use of in retail environments where barcodes need to be study at a distance of couple of inches or in industries exactly where barcodes have be read from a distance of few feet in harsh conditions. It can also read barcodes if they are torn, wrinkled, or damaged.\nPen-style barcode readers, also named wand barcode readers, consist of a light supply and a photodiode placed next to each other in the tip from the pen. As the pen is swiped across the barcode, the photodiode measures the intensity of light reflected in the surface. A waveform is generated that represents the precise widths of bars and spaces in the barcode. The dark color of bars absorbs light although the white spaces reflect light, thereby making a specific pattern of waveform. This voltage waveform is then converted by the pen-type reader to retrieve item data quickly. Due to the fact wand readers are manually swiped across the barcode, they are not restricted by the width of the barcode. They do call for the user to pass the wand more than the barcode at a consistent rate of speed and at a particular angle. The pen-type readers are usually not one of the most effective scanners, but they are smaller, extremely tough, and economical. Pen-style barcode readers are suited for low-volume and desktop applications.\nLaser barcode scanners provide more precise readability of barcodes as a laser beam is employed instead of a light supply. An oscillating mirror or even a rotating prism is employed to move the laser beam back and forth across the barcode. The brightness and sharpness of laser beam guarantees preciseness and higher accuracy in reading barcodes. Laser scanners can study the barcodes from greater distances and are best for applications exactly where barcodes need to be study in bright light.\nCCD (Charged Coupled Device) readers, also named linear imager barcode scanners, consist of a series of tiny light sensors that measure the intensity of light that is certainly right in front of them. Linear imagers can properly read barcodes from a couple of inches to various feet away. They may be much more robust and are designed to withstand harsh functioning situations. Linear imagers are suited for use in different sectors like retail, distribution, shipping, getting, and inventory.\nCamera Based Readers\nThe newest within the barcode reader technology could be the camera-based barcode readers or 2D imaging scanners. They use a small camera to take an image from the barcode then method this image utilizing sophisticated digital image processing strategies to decode the barcode. This reader forms an image employing sensors arranged in hundreds of rows. 2D barcode scanners can even retrieve info from barcode labels that they are wrinkled or broken. These scanners have capability to study barcodes moving at more quickly prices like cartons on a conveyor belt. 2D Barcode Scanners read barcodes omnidirectionally, so the barcodes can be orientated in any path. Some 2D barcode scanners may also capture digital pictures and signatures.\nCell phone Cameras\nBarcode scanning apps are now out there for particular cell phones with cameras. Some 2D barcodes like QR and Information Matrix codes are optimized for scanning by cell phones. Despite the fact that this technology is still in its nascent stage, it opens a wide variety of possibilities for possible applications. At present, iPhone and also a couple of phones employing the Google Android platform have barcode scanning apps available for use. The majority of these apps are created as buying tools. They use the barcode quantity to search a variety of websites, like Amazon and Google, to pull up item info, price tag comparisons, and buyer reviews. Some will even use the GPS inside the phone to find the nearest shop that has the item in stock. Mobile phone barcode scanning could be place to different other utilizes like providing access to valid ticket holders at venues, individual finance, inventory reporting, asset tracking, buying etc.\nThe barcode reader technology should really be chosen primarily based on every single business’ specific application. The barcode reader must be fast, straightforward to make use of, and tough enough to withstand the operating conditions, irrespective of whether it be in an workplace, retail retailer, factory, warehouse, or outdoors inside a function yard or vehicle.","domain":"optical_engineering"}
{"url":"https://ainews.instamart.ai/how-ai-is-used-in-analyzing-jwst-images/","date":"2024-04-19T01:41:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817253.5/warc/CC-MAIN-20240419013002-20240419043002-00178.warc.gz","language_score":0.9279020428657532,"token_count":777,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__123149104","lang":"en","text":"We may have a lot of misgivings about AI for the pains and AI-related job losses we’re seeing in our workplaces. However, when it comes to analyzing images coming from the world’s most powerful space telescope, AI comes in handy. On Monday 10, July 2023, scientists gathered at the US White House to witness the unveiling of the James Webb Space Telescope. This follows a NASA declaration of the new galaxy cluster SMACS0723. The announcement brings to our understanding the likelihood of trillions of galaxies in our universe. That’s enormous, right? These discoveries are now coming to light by using AI as our sense in the cosmos.\nWhat Technology Does James Webb Space Telescope Use?\nJames Webb is the most sophisticated and powerful space telescope worth $10 billion. Its capability goes beyond the Hubble telescope in terms of the sharpness of its infrared images and depth of coverage. In the ambitious project, the researchers are aiming at 0.5 million galaxies for high-resolution and 32,000 mid-infrared imaging. A naked AI cannot be a solution to such a massive number of images.\nThe Telescope is designed with a sun shield comprising Kapton layers and mirrors with gold plating. While micrometeoroids have hit the mirrors four times, the telescope continues to perform much better with no cases of data loss recorded!\nThe first images that were sent on July 12, testify to the potential of the James Webb Telescope to observe vast patches of the sky and survey millions of galaxies. This is where the puzzle is! How to analyze these images and make sense of them.\nTherefore, the telescope relies on an Artificial intelligence system to analyze images With the Webb telescope stationed at a million miles from the planet Earth. The images received from JWST are not only massive but also impossible to analyze with the naked eye.\nAs a result, Morpheus, an AI system will be used to analyze the images and also tell scientists what the telescope is looking for.\nThe AI System – Morpheus\nThe use of AI systems is not new in space telescopes. James Webb’s telescope predecessor, the Hubble used an artificial intelligence system for image classifications. Prof. Brant Robertson who was the lead researcher in training Morpheus noted that “The JWST will enable us to see the universe in a new way that we’ve never seen before, so, it’s really exciting.”\nThe deep learning framework used in creating Morpheus is the reason we’ll now have clear eyes in the sky. The James Webb Telescope (JWST) will stream pictures pixel-by-pixel basis to provide insights that had never been experienced before.\n“The JWST data is exciting because it gives us an unprecedented window on the infrared universe, with a resolution that we’ve only dreamed about until now,” Robertson said in a statement.\nIn the initial image analysis, JWST brought to light finer aspects of Carina Nebula which is estimated to be more than 7,600 light years. Other space wonders streaming into NASA’s image include the Southern Ring nebula and Stephan’s Quintet. The breakthrough is indicative of significant progress in the history of space exploration.\nNonetheless, the integration and use of AI is a continuous process. Professor Robertson and other 50 researchers continue to rely on artificial intelligence in mapping some of the earliest features of our universe as captured from the telescope.\nAI continues to disrupt industries. In journalism, the disruptive effects of AI are sending chills down the spine of professionals. On the contrary, space exploration is moving a step towards a breakthrough that will open greater insights. As we look forward to these new wonders from space, perhaps JWST will show us the gates to heaven!","domain":"optical_engineering"}
{"url":"https://coraltriangleadventures.com/underwater-fluorescence-part-1/","date":"2024-03-01T15:22:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475311.93/warc/CC-MAIN-20240301125520-20240301155520-00335.warc.gz","language_score":0.9592169523239136,"token_count":302,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__49345307","lang":"en","text":"Snorkeling to see fluorescence\nSimply put, fluorescence is the ability to absorb light of shortwave lengths and emit it at longer ones. In nature there are many animals and minerals that show this property, though we rarely see the outcome given the longer wavelengths are usually outside of the visible spectrum. Though our eyes cannot detect it, cameras can capture fluorescence with special filters that are attached to both the strobe light and the camera lens. The filter on the strobe, called the excitation filter, flashes a wavelength of light that forces the electrons in the color pigment cells to jump up several levels The filter on the lens, called the barrier filter, blocks out most incoming light except for the fluorescent light emitted from the subject.\nThe color most often emitted during my night sessions with the filter was green. And to some degree this makes sense. At least for corals, it has been suggested that since plankton, their primary food item, are attracted to green wavelengths, the green light would act as an attractant, drawing plankton close to their polyps where they can capture and consume them. Of course, these are all speculations as we really don’t know what the colors are used for, or anything at all as the fluorescing may just be a by-product of other biological functions.\nWhat a treat it was to capture this amazing phenomenon. We cannot wait to bring our filters to Palau to see what interesting and beautiful organisms fluoresce!","domain":"optical_engineering"}
{"url":"https://smallbusinessnews.net/2021/11/27/pressed-light-may-produce-breakthroughs-in-nano-sized-electronics/","date":"2022-10-05T22:30:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337668.62/warc/CC-MAIN-20221005203530-20221005233530-00033.warc.gz","language_score":0.9314733147621155,"token_count":344,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__257955345","lang":"en","text":"It is one thing that is produced nano devicesStudying and improving these things is another matter – they are too small and can’t reflect enough light to look good. However, a hack might make that possible. University of California Riverside researchers we built Technology that compresses tungsten lamp light into a 6-nm spot at the end of a silver nanowire. This allows scientists to produce color images at an “unprecedented” level, rather than having to be satisfied with molecular vibrations.\nThe developers have modified the existing “ultra-focus” instrument (already used to measure vibrations) to detect signals across the entire visible spectrum. The light travels in a conical path similar to a flashlight. When the tip of the nanowire passes over an object, the system records the effect of that element on the shape and color of the beam (including through the spectrophotometer). With two spectrophotometers per 6 nanometer pixel, the team can create color images of carbon nanotubes that will appear gray.\nThis ability to compress light is notable in itself, but the inventors see it as playing an important role in nanotechnology. Semiconductor producers could develop more uniform nanomaterials that find their way into chips and other densely packed devices. Pressurized light can also improve humanity’s understanding of nanoelectronics, quantum optics And other scientific fields in which this decision was not available.\nAll products recommended by Engadget are handpicked by our editorial team, independently of the parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.","domain":"optical_engineering"}
{"url":"https://profotex.com/catalog/156/1338/","date":"2023-09-26T12:15:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510208.72/warc/CC-MAIN-20230926111439-20230926141439-00338.warc.gz","language_score":0.885746955871582,"token_count":583,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__39990684","lang":"en","text":"The Ricoh WG-6 is a top-of-the-line waterproof digital compact camera designed to be waterproof to a depth of 20 meters, shockproof against a fall from heights of 2.1 meters and crushproof against weights of up to 100kgf (kilogram force). Its also cold-resistant to temperatures as low as -10°C.\nHigh resolution image sensor and 4K video\nEquipped with a state-of-the-art back-illuminated, 20 megapixel CMOS image sensor and a high-performance imaging processor, it delivers super-high-resolution still images and 4K-resolution movie clips (3840 x 2160 pixels, 30 fps).\nInnovative features help you get the best shot of the subject. For example the Handheld Night Snap mode, which automatically captures several images of the same nighttime scene and produces a single blur-free composite image from them.\nAnd if you are shooting video in HD video resolution (720p), you can activate the new Movie SR+ mode which generates a shake-reduction effect similar to the one created by a gimbal unit, to assure high-quality movie shooting with more active, fast-action outdoor activities.\nBuilt-in LED ring light\nThanks to its 5x zoom lens with an angle-of-view equivalent to approximately 28-140 mm for full-frame and a minimum focusing distance of only one centimeter, the WG-6 covers a wide range of applications, from eye-catching close-ups to sweeping landscapes.\nPositioned around the lens is a multi-application ring light, featuring six LED bulbs which provide a bright, uniform illumination on the subject. Thanks to a choice of lighting patterns, it can also be used to illuminate the subject more three-dimensionally.\nGPS and compass records positioning data\nThe Ricoh WG-6 comes equipped with a large, high-resolution 3.0-inch high-resolution LCD monitor (1,040,000 dots). Its anti-reflection coating minimizes annoying glare and reflections to assure a sharp, clear on-screen image even in the harsh sunshine often encountered in outdoor shooting.\nThe camera also incorporates such outdoor-friendly features as a GPS module to record position data and travel log data onto captured images, and an electronic compass to enhance operability in the field.\nWaterproof (down to 20 meters), shockproof and freezeproof compact camera\n20 megapixel CMOS sensor\n5x optical zoom, equivalent to 28-140 mm\nBuilt-in ring light with six LED bulbs placed around the lens\n4K video recording (3840 x 2160 pixels, 30 fps)\nBuil-in GPS and compass records positioning data onto the images\nElectronic Level to check the camera’s horizontal/vertical inclination","domain":"optical_engineering"}
{"url":"http://racertec.gq/2018/03","date":"2019-05-21T12:41:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256381.7/warc/CC-MAIN-20190521122503-20190521144503-00084.warc.gz","language_score":0.9552024006843567,"token_count":1476,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__158720516","lang":"en","text":"Air Optix is a well-known brand of contact lenses that makes soft, breathable lenses which are easy on the eyes. They are often recommended by eye specialists and doctors. One important aspect in contact lens should be the moisture retention attribute. Often lenses tend to dry up your eyes causing itching and discomfort so much so that you cannot wear them for more than a couple of hours at a stretch. Since it’s meant to be a part of your daily routine and you are likely to wear it for 6 to 8 hours each day you have to get adapted to the lens and it should not feel like a burden. Air Optix lenses which are made of silicone hydrogel assure easy, happy eyes for a long time. You can opt for coloured lens such as Air Optix AQUA for the added effect. The other brand that has many satisfied clients is Freshkon.\nFreshkon contact lens fuses vision with fashion. They are superior quality lenses that give your eyes the freedom each day to lap up new things and makes your eyes look bigger and brighter. They have designed a range of products and coloured lenses that let you experiment and explore so that you find the ones that complement your eyes and complete your look. Some of the products include Alluring Eyes, Colour Fusion, Airis etc. and they are versatile apart from being breathable. There are lenses for a day or a month and you can pick and choose according to your requirements. These are established names in the world of contact lenses such as Air Optix AQUA because of their customer friendly and safe products.\nThere are a number of online stores where you can place your order for Air Optix AQUA or Freshkon contact lens. Some of the things that you should consider before buying lenses are that they should be protective and keep irritants such as dust at bay, they should contain enough moisture to sit comfortably on your eyes for hours and they should fit your eyes perfectly to correct your vision. Soft lenses are lighter and better. While buying coloured lens make sure that you have found the colours that suit you. If you are unsure you can order 1-day lens. Carefully read the return and replacement policy of the website before placing an order.\nThere is a lot of debate that goes on about the topic that whether God is there or not. But whoever designed the human body would be the greatest engineer of all. The kind of symmetry that the human body has is beyond belief � everything is coordinated perfectly. But that doesn’t mean that we shouldn’t use all those products that enhance our looks. Our eyes are among the most important parts of our body. Our eyes are what someone first looks at when they see us. So, why not keep them healthier and make them look more beautiful. For healthier eyes, Acuvue Oasys is a great product. And if you want to make your eyes look even more beautiful, you have something known as Freshlook Colorblends.\nOur eyes go through a lot of stress throughout the day. In fact, our eyes only get rest when we sleep and have them closed. We spend long hours in front of the TV. The digital age has made sure that we spend all the time looking at screens � computer screens and the screens of our handheld devices. This causes a lot of stress and dryness in our eyes and the result is a lot of wear and tear.\nAcuvue Oasys has a revolutionary technology that protects our eyes completely. This is a lens with proprietary HYDRACLEAR Plus technology. These are ultra-smooth lenses with more wetting agents, keeping your eyes hydrated and never making you feel that you are wearing your lenses.\nAcuvue Oasys is made from unique silicone hydrogel, allowing 100% oxygen to be delivered to the eyes. Thus your eyes can breathe more freely, keeping them healthy till end of the day. These lenses are also able to block 100% of UVB and 97% UVA radiations.\nFreshlook Colorblends is built to enhance the appearance of your eyes cosmetically. This product allows you to change your eye colors in a subtle manner. It has a patented 3-in-1 technology that combines three colors. The natural appearance of your eyes will be maintained while looking deeper.\nFreshlook Colorblends lenses can be used for one or two weeks. You can wear them every day or you can wear them on special occasions. There is a wide range of colors that you can choose from. There are those classical colors including blue, amethyst, green, brown, grey, pure hazel, honey, true sapphire, pure hazel and turquoise. There are some new colors that you can choose from too � brilliant blue, gemstone green and sterling grey.\nWearing contact lenses instead of spectacles is beneficial as you get a 180 degree vision without obstruction. Acuvue Oasys is one of the best varieties of contact lenses produced. It is popularly believed that contact lenses bring about a lot of discomfort especially in dry environment like air conditioned offices. But today, contact lenses are manufactured with wetting technology that provides such comfort that you will hardly feel you are wearing the lenses. Sharingan contacts are a favourite in costume parties and are available in a wide array of colours and designs that create an exciting look.\nYou can get various patterns and prints on Sharingan contacts. For the next friends’ meet you can try out shades that match your outfit. You will surely look very fashionable and trendy in these coloured contact lenses. Coloured contact lenses are a great idea to break monotony in life and you start enjoying the new look as much as your friends and colleagues do. These designed and coloured contact lenses can be obtained in more than one diameter size and the larger ones will make your eyes look bigger and more attractive. On the other hand, Acuvue Oasys lenses are known for their health benefits as they allow unhindered flow of oxygen to your eyes throughout the day.\nAcuvue Oasys lenses are produced with best quality silicone hydrogel making them lightweight and easily pliable. Making the lenses oxygen permeable allows your eyes to remain clear and you feel comfortable for long hours. This variety of contact lenses gives protection from UV rays too, to a large extent. If you require prescription contact lenses then you need to provide the details of the power required for each eye and whether you need spherical lenses and so on. The online store will send your lenses right away. Sharingan contacts are also called circle lenses as the design and colour is in the form of a circle.\nHandling of contact lenses should be with clean hands only. Sharingan contacts should be stored in its case in the correct lens solution provided by the manufacturer. Solution should be changed as frequently as prescribed. When you are using disposable contact lenses the schedule for disposing and wearing a fresh pair has to be adhered to strictly for proper eye health. Care and attention paid towards your Acuvue Oasys will prevent any form of infection. The lenses are available online in various pack sizes. The website of the e-store carries detailed product description which you should read before you place any order.","domain":"optical_engineering"}
{"url":"https://www.weidmuller.fi/fi/products/workplace_accessories/industry_light/index.jsp","date":"2024-04-16T11:02:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817081.52/warc/CC-MAIN-20240416093441-20240416123441-00035.warc.gz","language_score":0.9289339780807495,"token_count":276,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__69101262","lang":"en","text":"The durable, space-saving and powerful LED lights meet the highest requirements in switch cabinets and applications in harsh environmental conditions. Thanks to the robust housing, wide cone of light and uninterruptable power supply, Weidmüller industry lights offer a ready-to-fit-solution for lighting, emergency lighting and power supply. The lighting solutions are particularly suitable for industrial use.\nOur LED lights are notable for their low level of sensitivity to vibrations, shocks and extreme temperatures. All LED lights are protected against the ingress of dirt and moisture.\nHigh luminosity and pleasant light colour which is similar to daylight. The high energy efficiency of our LED lights makes them economically usable in various industries and applications in the long term.\nOur LED lights achieve full luminosity the moment they are switched on - even in emergency mode. Due to their fast response, visual warning and error messages are also possible.\nProducts of the Orange Selection are available at any time. If your order is received by 3 p.m., your items will already be on their way the following day.\nElectronic catalogue in BMECat format and other formats. Fast access to article data thanks to proven standards.\nTo always deliver first-class products, quality control is of the utmost importance to us. Starting with ISO 9000 ff., up to continuous monitoring by independent global institutes.","domain":"optical_engineering"}
{"url":"https://peudia.com/lenses/?lens=13393k72u-8489sgl432","date":"2022-01-25T19:07:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304872.21/warc/CC-MAIN-20220125190255-20220125220255-00318.warc.gz","language_score":0.9100456237792969,"token_count":5610,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__183124130","lang":"en","text":"Free 2-day Shipping On Millions of Items. No Membership Fee. Shop Now Shop Sigma Lens For Nikon & More. Get Sigma Lens For Nikon at Target™ Today. Discover Savings on Sigma Lens For Nikon & More This item: Sigma 85mm f/1.4 DG HSM Art Lens for Nikon F (321955) $1,049.00 Sigma USB Dock for Nikon $49.72 Sigma 35mm F1.4 Art DG HSM Lens for Nikon, Black, 3.7 x 3.03 x 3.03 (340306) $639.95 Customers who viewed this item also viewe Its Mount Converter MC-11 also makes the 85mm f/1.4 DG HSM compatible with many other camera systems aside from Nikon, such as Sony and Canon, via SIGMA SA and SIGMA EOS mounts. The Sigma lens has a coating that repels water and oil, and it has a mount made of heavy-duty brass-made bayonet\n.4 DG HSM | A Standard Prime Lens for Nikon DSLRs Black at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. Price Match Guarantee Sigma 85mm f/1.4 DG HSM Art Lens for Nikon F (321955) $1,048.99 (498) Only 5 left in stock - order soon Make Offer. - SIGMA 85mm F1.4 ART DG HSM PRIME LENS for NIKON CAMERA NEW in FACTORY BOX & CASE. Sigma 85mm f/1.4 DG HSM Art Lens for Nikon 321955. $1,199.00. Free shipping. Make Offer. - Sigma 85mm f/1.4 DG HSM Art Lens for Nikon 321955. Sigma 85mm f/1.4 EX DG HSM for Nikon Mount. $436.65 5d 20h\nSigma 85mm 1.4 DG HSM For Nikon - $475 (Nashville) 85mm 1.4 Non-Art lens for Nikon. Does not come with lens cover or hood but does have UV FilterLens is working as it should and shows only minor wear from use. $475 OBO. Will consider trades for other photography equipment related to the Sony E-Mount platform Sigma 85mm f/1.4 DG DN Art Lens for Sony E with LaCie 1TB HDD Bundle. $1,199.00. Was: $1,678.60. Free shipping. Only 1 left\nSigma 85mm f1.4 DG Art Lens for Nikon Includes: Sigma front and rear lens caps, Sigma lens hood, manual, Sigma case, and box. Item is in like new condition Sigma looked to create a peak portrait prime with the 85mm f/1.4 DG HSM Art Lens, and they delivered an optic with high performance, a large f/1.4 aperture, and a variety of technologies. Available here with a Nikon F mount, this lens offers a super-fast f/1.4 aperture that is great for getting images with an exceptionally shallow depth of. The best price for Sigma 85mm f/1.4 DG HSM for Nikon Lens Price is Rs. 79,899 at Amazon.in. The price list was fetched from top online stores in India and was last refreshed on 03 Jul 202 5. Sigma 85mm f/1.4 DG HSM Art Lens for Nikon F Mount. One should remain thankful to Sigma for coming up with a lovely looking and designed kens that proves the 'best-in-class' image quality and that at rates to die for! Even when you use it at f/1.4 and on a full-frame body, there is no corner softness from this lens Key Features F-Mount Lens/FX Format Aperture Range: f/1.4 to 16 Two Low Dispersion Elements One Aspherical Element Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override Rounded 9-Blade Diaphragm TSC Material, Brass Bayonet Mount Compatible with Sigma USB Doc\nThe 85mm F1.4 DG HSM Art ($1,199) continues the trend, undercutting the Nikkor 85mm f/1.4G ($1,599) and the Canon EF 85mm f/1.2L ($1,899) on price, without sacrificing any performance. It's an.. Price-wise, the Sigma 85mm f/1.4 Art lens is a bargain, comparatively speaking. The Nikon 85mm f/1.4G retails for $1599, while Canon's 85mm f/1.2L lists for $1899 (at the time of writing this review). At $1199, the Sigma provides outstanding image quality at quite a bit less than its competitors. The lens is available in Nikon, Canon, or. The Sigma 85mm 1.4 DG HSM Art is the latest addition to the world renowned Sigma Global Vision line. Designed and engineered for unparalleled image quality, the Sigma 85mm 1.4 Art employs a completely new optical design and premium components. 2 FLD (performance equal to fluorite) glass elements and 1 element boasting a high rate of anomalous partial dispersion and high refraction achieve a. The Sigma 85mm f/1.4 DG HSM A1 Art for Nikon is a high quality portrait-length lens designed for F-mount cameras. Key features include: Great for portraiture and event photography. Excellent image quality, clarity, contrast, and sharpness. Fast, smooth, and quiet autofocus. Compatible with the Sigma USB doc\nItem for Sale: Sigma 85mm F1.4 DG ART (Nikon Mount Full Frame) Asking Price: Rs 59,000/-. Item Description : Sigma ART 85mm f1.4 lens. Lens condition is 10/10, optics 10/10. Comes with Box, Bag, Hood, Both cap, and lens cover protector. It's about 3yrs and is like new condition. I am selling as i have excess gear Sigma 85mm F/1.4 DG EX HSM Autofocus Lens For Nikon Made in Japan (77) EX. C $794.74. Was: Previous Price. C $863.85. Buy It Now. +C $62.97 shipping. 22d 19h left (5/8, 16:27) From United States The Nikon F mount Sigma 50mm f/1.4 DG HSM Lens is a fast standard-length prime designed to achieve high optical performance through the incorporation of both three Special Low Dispersion glass elements and one molded glass aspherical element. These elements, coupled with an advanced optical design, work to minimize sagittal coma flare and chromatic aberrations in order to provide high image.\nThe Sigma 85mm 1.4 DG HSM Art is the latest addition to the world renowned Sigma Global Vision Line. Designed and engineered for unparalleled image quality, the Sigma 85mm 1.4 Art employs a completely new optical design and premium components. 2 FLD (performance equal to fluorite) glass elements and 1 element boasting a high rate of anomalous partial dispersion and high refraction achieve a. Overview: Sigma makes the only Nikon-mount f/1.4 85mm portrait lens in the $500-1,000 price range, and it's a good one. Test results put image quality very close to that of pro-end lenses. It has an SLD glass and elements with super multi-layer coating, which reduces flare and ghosting, while the Hyper Sonic Motor focuses fast and quiet There is also some competition by the Zeiss Planar T* ZF 85mm f/1.4 and the Samyang 85mm f/1.4 - both manual focus lenses and as such not everybody's darling. The Sigma features the same specifications as Nikon's latest offering but is significantly more affordable at just above half the price. The build quality of the Sigma lens is excellent Price. The cheapest of the bunch is the $1,199 85mm f/1.4. Almost 400$ (25%) cheaper than the most expensive lens in our list. If the price is your concern, go with the 85mm and you will be happy. The Sigma AF 85mm f/1.4 EX DG HSM is a short telephoto lens with a bright f1.4 focal ratio. Announced February 2010, it's the only 85mm large aperture alternative to Nikon or Canon's own primes that offers auto-focus. The short telephoto lenses from Samyang and Zeiss are manual focus only. It is available for Canon, Nikon, Sigma, Sony, and.\nSigma 85mm F1.4 DG HSM A Nikon Review Sigma 85mm F1.4 Art lens review: New benchmark In case you're not familiar with Sigma's Art series primes, they're the company's high-speed f/1.4 models that are designed to compete with the very best lenses from Canon and Nikon, and can even give legendary lens maker Zeiss a run for its money Sigma 85mm F1.4 DG HSM A Nikon vs. Nikon AF-S Nikkor 85mm f/1.4G vs. Carl Zeiss Milvus 1.4/85 ZF.2 Nikon We've also compared the new Sigma Nikon-mount model against the AF-S Nikkor 85mm F1.4G . While you might think the $1,199 is a lot for the Sigma, there's a $1,000 premium for the Nikon glass, a well-known and highly-regarded model that.\nThe Sigma 85mm f/1.4 EX DG HSM, Nikon Fit lens is the perfect tool for portraits and work in low light. Ideal for any photographer looking to build on their passion! The Sigma 85mm f1.4 EX DG HSM, Nikon Fit lens delivers excellent results. The brilliant build quality makes it ideal for getting closer as you photograph. The perfect portrait lens .4G weighs only about a half of the above Sigma 85mm f/1.4 DG HSM Art but comes with a relatively heavy price tag. Its optical design includes 10 lens elements compared to the Sigma's 14, and the diameter of the front element is considerably smaller Product Title Sigma 50mm f/1.4 DG HSM Art Lens for Nikon F Average rating: 5 out of 5 stars, based on 1 reviews 1 ratings Current Price $894.95 $ 894 . 95 List List Price $1342.42 $ 1,342 . 4 Sigma 85mm F1.4 EX DG HSM Overview. The Sigma 85mm F1.4 EX DG HSM is a short telephoto prime lens for full-frame and APS-C DSLRs. It features a hypersonic focus motor with full-time manual focus override, a 9-bladed aperture diaphragm for attractive background blur, and has a minimum focus distance of 85cm. It comes with a lens hood adapter for.\nNikon 200-500mm f/5.6E - Our Choice. Sigma 85mm f/1.4 - Multi-layer coating. Nikon 24-70mm f/2.8E - Non-stick glass. Tamron 90mm F/2.8 - Sharpness. Tokina 14-20mm f/2 - Wide angle. Having tested all the best lenses for Nikon D500, I have compiled this list taking into account prices, functionality and image quality Packed with all the right features and coming at a price that's one third less than the Sony FE 85mm f1.4 G-Master, the Sigma clearly earns a Highly Recommended! Let's hope that Sigma soon is able to offer their new lens with Nikon Z-mount and Canon RF-mount too. Good points: Relatively small and light for an f1.4 lens Sigma 85mm F1.4 DG HSM A Nikon on Nikon D500 vs Sigma 85mm F1.4 DG HSM A Nikon on Nikon D70 COMPARISON SELECTION (3 selected items max.) VIEW COMPARISON ADD MORE. Scores Best at f=85mm & f/1.4 38. Lens Metric Scores: Sharpness . 19 P-Mpix. Transmission . 1.7 TStop. Distortion . 0 %. Vignetting -0.6 EV. Chr. aberration . 2 µm. Sigma 85mm F1.\nThe Sigma 85mm f/1.4 DG DN lens will begin shipping in late August 2020 for an estimated retail price of US $1199. Sigma 85mm f/1.4 DG DN Art Your purchases support this sit The Sigma's true competitors are the first party 85mm lenses from Canon and Nikon, and the Nikon (85mm f/1.4G) comes in at an $800 premium at right under $1700. Canon's own 85mm f/1.2L II has a slight aperture advantage and beautiful optics, but it comes in at a whopping $2000 The Sigma 85mm 1.4 is the standard for portraiture lenses. Its distinctive focal length and large aperture give it great movement between uses, from portraits to everyday images. Designed for full frame sensors, the 85mm 1.4 is also equipped with a multitude of Sigma technology to further ensure unmatched image quality While the latest two Zeiss 85mm f/1.4 lenses are slightly heavier and wider than the 85 Art lens, the Sigma is slightly longer than both of these. For many more comparisons, review the complete Sigma 85mm f/1.4 DG HSM Art Lens Specifications using the site's Lens Spec tool\nAs an Essential Business, some of locations are open and we are here to safely meet your equipment and media needs. We are following safety Best Practices in these stores by requiring face masks and social distancing The following 100% crops show the new Sigma 85mm f1.4 DG DN Art compared to the Sony FE 85mm f1.4 GM, Sigma 85mm f1.4 DG HSM Art (shot on a 36MP Nikon D810), and Zeiss 85mm f1.4 Otus (shot on a 45MP Nikon D850) at f1.4. The D850 has a 4% higher, the D810 7% lower linear resolution than the Sony A7R II. But these differences are practically. Go read the Sigma 85mm f/1.4 review on Lenstip. The Zeiss Otus and Milvus 85mm lenses were more consistent (and sharp) than the Sony 85mm GS, and the Sigma 85mm f/1.4 Art beats the two Zeiss lenses, setting a resolution record on the EOS Mark III sensor, while having way better borders and corners than the Sony and two Zeiss lenses\nSigma Tele-Objektive 85mm f/1.4 DG HSM Art Canon. £1,023.43. Sigma 85mm f/1.4 DG HSM Art Lens for Canon EF Mount. £1,029.99. Sigma Sigma 85Mm F/1.4 Dg Hsm I A (Art) Telephoto / Portrait Prime Lens Canon Fit. £1,039.99. Sigma 85mm f/1.4 DG HSM Art Lens Canon Fit. £1,048.98. Sigma 85mm f/1,4 DG HSM Art For Canon Ef From left to right: Sigma 85mm f/1.4 EX DG HSM, Sigma 85mm f/1.4 Art, and Canon 85mm f/1.2L II. The Sigma 85mm Art is up against several lenses in it's same class, considered alternatives. Although Canon doesn't have an identical f/1.4 equivalent, there are still options that it can be weighed against: Canon EF 85mm f/1.2L II USM Len\nSigma's 85mm f/1.4 DG HSM Art lens has become a favourite of many portrait and still life photographers who shoot with Canon and Nikon full-frame cameras. Sigma also offers the lens in an E-mount option, for use with Sony mirrorless bodies. However, at 95x125mm and 1,130g, it feels a bit of a mismatch for relatively slimline Sony cameras, resulting in a distinctly front-heavy package Sigma 85mm f/1.4 Art. 3. Tamron 85mm 1.8VC. Especially in portrait photography, the background has to be darker than the foreground and shouldn't be annoying. The 50mm f/1.8 is a good lens that. We've also compared the 85mm Nikkor with the highly regarded Art-series Sigma 85mm F1.4 DG HSM A on the 47 MP Nikon D850. Although faster and considerably larger and heavier, the Sigma is available at a competitive price of around $1,200 or 1,249 Euros. (Nikon doesn't yet have a f/1.4 model in its Z series line up.\nSigma looked to create a peak portrait prime with the 85mm f/1.4 DG HSM Art Lens, and they delivered an optic with high performance, a large f/1.4 aperture, and a variety of technologies. Sigma 85mm f/1.4 DG HSM Art Lens Canon/Nikon/Sony quantit The Sigma 85/1.4 produces an almost circular shape from f2.8 onwards which is good and corresponds with a relatively low light fall-off in the corners. There is also only a little outlining of the red oof-dot which is a good sign for pretty bokeh. Sigma AF 85mm f/1.4 EX with Nikon D800 in contra-light The Otus lens is a little bit thicker around (3.98/101mm) but isn't quite as long (4.88/124mm). No matter how you slice it, the Sigma 85mm f/1.4 ART is a BIG lens. The previous generation Sigma EX 85mm f/1.4 was only 3.4/86.4cm in both length and girth and weighed 725g, making the new lens 40% bigger overall The Sigma EX 85mm 1: 1.4 DG HSM is a good fast prime lens mainly for portrait photography. There are very few lenses of 85 / 1.4 class with autofocus, and I am glad that Sigma was able to create something similar. The Sigma 85mm f / 1.4 was introduced at the beginning of 2010 and became the first 85 mm fixed-lens for Nikon cameras, which had a.\nThe Sigma 85mm f/1.4 DG DN Art lens. (as shown on the Panasonic S5 L-mount camera) The weight combination between the 85mm f/1.4 and the Panasonic S5 is very nicely balanced. At 714g for the body. Price: $24.95. Sigma 85mm f/1.4 DG HSM Art Lens (Nikon Mount) - 321955The Sigma 85mm 1.4 DG HSM Art is a latest addition to the world renowned Sigma Global Vision Line. Designed and engineered for unparalleled image quality, the Sigma 85mm 1.4 Art employs a completely new optical design and premium components\nWe sell Sigma 85mm f/1.4 DG HSM Art Lens for Nikon (86mm) $999.0000 for the lowest prices anywhere. Shop 42nd Street Photo online 24/7 or visit our New York City camera store for the best prices on digital cameras, camcorders, audio and video electronics We sell Sigma 85mm f/1.4EX DG HSM Lens For Nikon (77mm) $819.0000 for the lowest prices anywhere. Shop 42nd Street Photo online 24/7 or visit our New York City camera store for the best prices on digital cameras, camcorders, audio and video electronics Item Includes Sigma 85mm f/1.4 ART DG HSM Lens (for Nikon Cameras) Lens Hood; Lens Case; Perfection begins with a passion. The Sigma 85mm f/1.4 ART DG HSM Lens is a latest addition to the world-renowned Sigma Global Vision Line. Designed and engineered for unparalleled image quality, the Sigma 85mm f/1.4 Art employs a completely new optical design and premium components. 2 FLD (performance. 1 of 5. Focal Length: 85mm. Aperture Range: f/1.4 - f/16. Price: $1,079.00. Mounts: Canon EF, Nikon F, Sigma SA, Sony E. The 85mm f/1.4 is easily the most popular of these 3 focal lengths. But of course, that doesn't mean it's best for everyone. 85mm is a great focal length for general portrait photography. It gives you an approximate.\nSigma 85mm f/1.4 ART for Nikon Sold! Price - $750.00. Ad Number: 210304. Posted: 04 Jun 2020. Please sign in to message advertiser. I hate to see it go, but I simply rarely use this lens anymore. I picked up a 70-200 2.8 for my Z6 and would rather carry that around Reasons to choose Nikon AF-S Nikkor 85mm f1.4G over Sigma 85mm F1.4 DG HSM Art. 5 advantages. Weight. 595 g vs 1130 g. 535 g lighter. Diameter. 87 mm vs 95 mm. 8 mm smaller in diameter. Length\nAmong its new product lines, this is the fifth large-diameter F1.4 lens SIGMA has introduced for cameras with full-frame sensors. SIGMA is the only lens manufacturer that covers 20-85mm at F1.4 brightness in its lineup. This latest lens reflects our experience with this specification and insistence on offering only the best.u000b The Nikon 85mm f/1.4 AF-S G is simply astonishing. It is the first lens I have ever used in over 40 years of photography that excels at both the scientific aspects (sharpness and lack of coma, especially at f/1.4 in the corners), and the artistic aspects of defocus, all at the same time.Every other lens I've used is either super-sharp, but renders distracting backgrounds (most aspherical.\nThe Sigma is definitely much bigger and heavier as what you would expect for a f1.4 lens. Nikon vs Sigma 85mm by gqtuazon, on Flickr. Current price from BH photo as my price reference for the Nikon 85mm f1.8G is $496.95. The Sigma 85mm f1.4 HSM is $894.00 and compared to the Nikon 85mm f1.4G it is priced at $1,599. USD Sigma; more Category. Lens; Portrait lens; Wide angle lens; Landscape lens; more Lens mounts. Nikon FX; Nikon DX; more Price < $800 < $700 < $500; more Aperture < f/1.4; more Wide angle < 35 mm < 24 mm ; more Telephoto. more Image stabilization. more Focus motor. more Type. 50mm lenses; 85mm lenses; more Best Portrait Prime Lenses for Nikon D850. Sigma 85mm f/1.4 DG HSM Art ($1,199): Professional Portrait Lens!Highly Recommended!An ultimate portrait lens that offers attractive booked effect and precise focus is possible to achieve to focus on the pupils of subjects eyes while blurring the eyelashes Price: The cheapest of the bunch is the Sigma 85mm f/1.4 Art - almost $400 (25%) cheaper than the most expensive lens in our list. If the price is your concern, go with the 85mm and you will be happy. Buying the 105mm f/1.4 Art might not give you 25% better images. Comparing the Sigma prices to Canon and Nikon equivalent lenses, you can.\nPhoto size: 10.8 MP Camera: FF Lens: Sigma 85mm f/1.4 EX DG HSM ISO: 800 Focal length: 85 mm Aperture: F/1.4 Exposure time: 1/500 se As with the Nikon 50mm f/1.4 lens, sharpness drops off much more noticeably at the wide end of the aperture range than with competing Sigma f/1.4 Art lenses, but sharpness is impressive between f. Sigma 85mm f/1.4 DG HSM Art Lens for Canon EF - 321954. The Sigma 85mm 1.4 DG HSM Art is a latest addition to the world renowned Sigma Global Vision Line. Designed and engineered for unparalleled image quality, the Sigma 85mm 1.4 Art employs a completely new optical design and premium components\nThis lens is in a different world compared to the original Sigma 85mm f/1.4 EX DG HSM in every category, and it's just as good as the Canon 85 f/1.2 and the Nikon f/1.4 in almost every way. Autofocus is super quick and very accurate, but there's a little bit of hesitation when focusing in low light This entry was posted in Sigma Lens and tagged Sigma 35mm F1.4 Art lens deals/ cheapest price, sigma 85mm f1.4 art lens on February 25, 2018 by admin. Hot Deals: Sigma 85mm f/1.4 DG HSM Art for $999, 18-35mm f/1.8 DC HSM Art for $59 The SIGMA 85mm F1.4 DG HSM | Art incorporates 14 lens elements in 12 groups, a remarkable structure that helps the lens deliver ultra-high-resolution. This lens is therefore an excellent match for full-frame DSLRs offering 50-megapixel or higher resolution.To create a top-performing 85mm F1.4 lens, SIGMA leveraged its latest innovations in. What this really means to photographers is that Sigma designed a lens built to a high optical standard, not a price point or design aesthetic. Their 85mm f/1.4 DG HSM Art lens is designed for full-frame Canon, Nikon, and Sigma SA cameras, but can be used with APS-C models where, on my EOS 60D, it produces a 136mm equivalent focal length field. B&H has the Sigma 85mm f/1.4 DG HSM Art lens for Nikon F-mount on sale ($350 off) as a part of their Deal Zone. This offer is valid only for today. Update #1: get another $50 off with coupon code YOUGO2BH at B&H only Update #2: this deal is now also available at Adorama. Check [ Although 85mm is at the bottom end of the typical portrait focal range of 85mm to 135mm, the Sigma 85mm f/1.4, with its 136mm angle of view equivalent, is right where a portrait photographer would want a lens when using an APS-C 1.5x or 1.6x body","domain":"optical_engineering"}
{"url":"https://aziza-physics.com/light/","date":"2024-04-18T11:13:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.28/warc/CC-MAIN-20240418093630-20240418123630-00000.warc.gz","language_score":0.9675439596176147,"token_count":425,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__117672956","lang":"en","text":"What is light?\nBy the simplest definition, light would be a phenomenon that allows us to see. We did not have to study the light to know its existence, because the light is as old as the universe. Our awake eyes always need light, which is why we turn on a light bulb when it is dark.\nIn any case, light is an interesting phenomenon, and its nature has been a puzzle for centuries. Light is something that illuminates darkness. To that extent, light is part of our everyday life so that we do not think about it too much, but simply use it.\nHowever, behind the most common movement we do to turn on the lamp, is the century of continuous technical development and study of the nature of light, its formation, the speed of its movement, considering whether this speed can change, and the like. It is still unclear though, whether the speed of light was always the same. Scientists learned to redirect and break the light beams to get laser beams. They also managed to reduce the speed of light (under certain conditions) and stop the light beams and conserve them.\nBy studying the light technological discoveries went from candle to laser and from the magnifier to the Hubble telescope, our artificial “eye”, whose glimpse wanders the Universe.\nIsac Newton set the theory that the light is the flow of very small corpuscle particles, which movement is subject to the laws of mechanics. At the same time, Christian Heagens set his theory that the light is a wave. The wave nature of the light was later confirmed by the theory of reflection, refraction, diffraction, and so on. Later research determined that light is both, wave and corpuscular (particle). A particle of light is called a photon.\nLight waves are a type of electromagnetic wave, similar to radiotalas.\nThe light we see is called white light. There are light waves that we can not see. These are infrared light rays, which have higher wavelengths than wavelengths of visible light, and ultraviolet rays that have less wavelengths than visible light.","domain":"optical_engineering"}
{"url":"https://ladyandtheblog.com/vsp-unity-performance-optics-are-amazing-plus-marchon-sunglasses-giveaway/","date":"2021-03-08T00:08:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178381230.99/warc/CC-MAIN-20210307231028-20210308021028-00356.warc.gz","language_score":0.971071183681488,"token_count":770,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__101897313","lang":"en","text":"UNITY Performance Optics provide high-quality, digital lenses and premium coatings for every lifestyle. The latest technology is used to customize your lenses to your unique visual needs. With UNITY digital lenses, your prescription will be tailored not only to your eyes’ corrective needs but also to your frame and how your glasses fit your face. UNITY has an array of lens and coating options for your lifestyle, and you can get all the goodies you love like the best designer frames as well as anti-glare and Transitions lenses!\nBill is near-sighted with a little astigmatism thrown in for good measure. He gets single vision lenses (one prescription). As an example of the UNITY difference, see the images below. It gives you an idea how much better these lenses are crafted than your typical lenses.\nWith UNITY, you see the world in “high-definition.” UNITY single vision lenses use sophisticated digital lens design technology to give you the most natural and clear vision with exceptional comfort. In fact, UNITY lenses can increase your field of vision up to 20% more than traditional lenses. They deliver a more precise prescription than traditional lenses and yet still fit in all frames, including frames that wrap around your face (like some sunglasses).\nAs part of the experience, Bill went to a local VSP Preferred Provider that carries UNITY (Find an optometrist that does here). He received the most advanced and comprehensive eye exam he’s ever had, called the WellVision Exam®. He loved it, as odd as that sounds. He then had a retinal screening to check for eye health and other issues. All went well, and the doctor was not only professional and thorough, but really friendly and explained more about the eye and how glasses work than Bill (or I) ever knew. It was a great visit.\nAt that point, Bill sat down with the ladies in the front of the office. He checked out a ton of different frames, from all the names you know and love. They had every style, every material, and every color one could ever hope for. It was a big effort to choose the best one, but he got a lot of good advise!\nOnce the lenses were selected, he was given all of the options available to anyone with the UNITY experience. Different lens options like size, anti-reflective, scratch resistance, progressive, and Transitions. He actually went with the anti-reflective, scratch resistant Transitions with plastic frames. With the kids and life working at home, he needed a really good pair of glasses. Plus, he’s always wanted to try the Transitions lenses. The women working there were truly helpful throughout.\nThe new glasses came about a week later. Bill picked them up, tried them on, and they looked and felt great!!! He absolutely loves them. The look of the frames but also the clarity in which he sees with them. They are a great pair of glasses and make his vision that much better. The office was sure to let him know that he could come back at any time if there needed to be any more adjustments, if there were any issues with the lenses, the prescription (within 30 days), or even just to have the lenses tightened a bit once in a while.\nThe entire experience was top notch and the product is just as good. He’s actually found his (and the kids’) new optometrist! Plus, I thin the glasses are pretty awesome. If you are looking for the best eye glass experience, I think you have to try VSP UNITY Performance Optics!! To find out more, visit https://www.vsp.com/unity-lenses.html and check out the links below:","domain":"optical_engineering"}
{"url":"http://columbiagr.com/research-and-development.html","date":"2021-06-20T10:21:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487660269.75/warc/CC-MAIN-20210620084505-20210620114505-00424.warc.gz","language_score":0.929649293422699,"token_count":127,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__83994574","lang":"en","text":"Research and Development\nCommercial Research and Development opportunities are of interest to our Columbia Gorge Research principals as exhibited by our bidding government Research and Development projects. We are strongly focused on pursuing opportunities that are directed toward enabling fiber optic sensor technology to create cost effective and high performance solutions for fielded applications. To accomplish these objectives most effectively, we at Columbia Gorge Research seek partnerships with small companies, large corporations and research institutions with whom we will pursue synergistic goals. For further information contact, Eric Udd, Columbia Gorge Research, at 503 491-8801, cell 503 975-0007, email@example.com.","domain":"optical_engineering"}
{"url":"https://www.dslrastromod.co.uk/clearglass+IR.html","date":"2024-02-22T08:43:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473735.7/warc/CC-MAIN-20240222061937-20240222091937-00050.warc.gz","language_score":0.9348646998405457,"token_count":1137,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__180875048","lang":"en","text":"Normal infrared photography would mean buying a filter (typically a Hoya R72), composing the image on a tripod, fitting the filter in front of the lens with correct filter size and taking a long exposure (~30 secs in sunlight). This still doesn’t yield a very good photo as the noise generated by the process is substantial.\nI replace the filter in front of the sensor itself with one that allows radiation with wavelength greater than e.g 715nm (to ~1200nm) to pass through. This allows only (invisible to humans) infrared to pass through.\nDigital imaging sensors in most cases are just as sensitive to infrared light as to visible light. Camera manufacturers stop infrared light from contaminating the images by placing a hot mirror filter in front of the sensor which blocks the infrared part of the spectrum while still allowing the visible light to pass.\nI remove this hot mirror filter and replace it with a custom manufactured infrared or clear filter.\nAutofocus is retained in both cases, and focusing through the viewfinder is still possible after the IR conversion due to the placement of the replacement mirror behind the view prism in the optical train. This makes focusing and scene adjustment easy, unlike trying to achieve this with a front lens fitted IR filter like the Hoya72.\nThe internal hot mirror filter blocks most of the infrared light from reaching the imaging sensor, thus making the exposure time much longer, usually seconds long and requiring a tripod. That long of an exposure makes it difficult to photograph and really slows you down as you have to set up a tripod for each shot.\nAlso because you place the opaque infrared filter in front of your lens you can't see to compose and focus, making it even more difficult and time consuming to take each shot.\nAfter conversion the exposure times are much shorter, as an example a converted 350D on a sunny day on ISO 200 at f/8 would have a shutter speed of around 1/400th of a second. This makes handheld shots easy and since there is no filter in front of the lens you can focus and compose like normal.\nI use Schott glass only. The filters are custom manufactured to exacting scientific specifications. Both filters are made of high quality optical glass offering excellent visible light transmission (clear glass) or infrared response (longpass infrared hot mirror).\nThe metering will work as usual. Keep in mind that the amount of infrared light varies from scene to scene even if overall brightness is the same. Since the camera light meter senses only visible light you may need to dial in some exposure compensation, example: +1.3 stops.\nEach lens diffracts infrared light differently so some lenses may be a bit off in one direction or the other and with zoom lenses the focus may be different on each zoom setting and most different at the opposite ends of the range. In most cases you can stop the lens down to f/8 or higher and get good results.\nI get as close to a dust free conversion as is practical but in most cases there will remain a few dust specks normally invisible in photographs except at high focal length (> f10 ) and against a very light background.\nThese can be removed manually using a graphics editing package or with later models, using Canon's dust delete data functionality if so desired.\nI can also supply 665nm or 720nm IR converted Canon xxxD or xxD range of DSLRs of your choice - contact me for more detail.\nThese shots below where all taken handheld by myself with a 350D.\nI'm by no means a pro but goes to\nshows you what you can achieve with a bit of an eye and some experimentation.\n665nm as the extra color information is useful in B&W\nconversion and allows for better false color infrared.\nWith CS3 B&W conversion tool you can adjust each color slider in the B&W conversion. This is the same as having\na color filter on your lens and being able to adjust the intensity. Just shoot RAW.\n1000 times easier than IR film days!\nAutofocus adjusted for IR.\nDue to the difference in Infrared wavelengths an adjustment to the autofocus point is made.\nWhenever shooting IR stopping down a couple of stops will always lead to sharper focus with any lens.\nThis means that you should shoot in f/8 to f/11 range.\nAttempting to shoot f/1.8 f/2.8 can lead to back focus. Where your are focus a couple of inches in front of your subject.\nSome older lens have markings to show where the IR focus point is. Shoot at f/8 to f/11 and you won't have any problems.\nTypical exposure in daylight will be ISO 200 f/8 1/100th sec to 1/1000th sec\nNo sensitivity lost in IR conversion!\nEnhanced Color IR\nAllows more color to pass and is especially suited for color IR work with great saturation and color range.\nBW also looks quite good although with a bit less contrast without adjustments.\nEnhanced Color IR Filter (665nm) Infrared conversion by LifePixel costs $450 = £272 = Euros 315 alone.\nThe IR filter alone would set you back $180 from Lifepixel in the US, excluding shipping cost to UK!\n** Please take note.\nThis disclaimer is NOT unique to my service.\nI can confirm similar suppliers of these services such as LifePixel and Baader,\nas well as individual outfits such as Gary Honis, Hap Griffin all have similar disclaimers in place.","domain":"optical_engineering"}
{"url":"https://aunet.com.au/products/nikon-immersion-oil-8cc","date":"2020-04-04T06:11:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370520039.50/warc/CC-MAIN-20200404042338-20200404072338-00219.warc.gz","language_score":0.9335842132568359,"token_count":202,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__171619659","lang":"en","text":"Nikon Immersion Oil – 8cc\nNikon Type “A” Immersion Oil.\nIn polyethylene dropping bottle\nImmersion oil is used when viewing specimens with the 100x immersion oil objective as it’s designed specifically for viewing with oil.\nThe immersion oil helps to preserve the resolution of the image when looking at it at 1000x because the oil boasts the same refractive index as glass.\nA drop of immersion oil between the slide and condenser, and between the slide and objective lens, provides a distortion-free path for light.\nSafe for all lenses, this light-viscosity immersion oil will not dry out the slides or optics. The refractive index is 1.5150, the same as that of glass.\nShipping and Handling:\nAll products purchased from Aunet.com.au will be despatched either same day or next day of your order being received. Delivery within Australia can be expected within 7 working days.","domain":"optical_engineering"}
{"url":"https://www.chipmall.com/info/Osram-launches-sustainable-development-signage-lighting-system-to-make-lighting-smarter-and-greener2_i0286.html","date":"2023-05-31T16:16:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646937.1/warc/CC-MAIN-20230531150014-20230531180014-00323.warc.gz","language_score":0.9068533778190613,"token_count":537,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__132242526","lang":"en","text":"As another big scene in the application of lighting products, city night scene plays a good role in improving city night scene and living environment. However, illumination in night scenes is also a double-edged sword. When urban lighting is excessive, it will also disrupt the normal biological clock, which will have adverse effects on people, animals, plants and the environment, resulting in light pollution.\nosram, powerful integrated LED logo lighting module OPTOTRONIC ® series drive power supply and lighting control system to build \"digital light box\" overall solutions, to achieve more intelligent lighting applications: the \"box\" to set the brightness of the lighting control system, using different brightness, in different time period or light boxes and other lighting scene common access lighting control system, build linkage, the background can be controlled lighting system combination.\nFor example, osram lighting control scheme can be applied to the subway and rail traffic light box, through the \"time\" default function, in the busy period of time, light box can be set to normal brightness, and stream of smaller period of time, such as in the middle of the night light box brightness automatically to the preset value, the guarantee light boxes advertising images clearly at the same time, avoid the night light \"disturb\" of human life at night, at the same time to achieve energy conservation and emissions reduction, and reduce the city and a human being to come to \"light pollution\", artificial light is more reasonable and effective application in the dark.\nAt the same time, the \"digital light box\" overall solution can also be \"presence sensing\" and \"daylight sensing\" and other functions to achieve automatic brightness adjustment. For example, in cloudy and rainy days, the light box on the ground rail transit will automatically reduce its brightness to match the ambient light, so as to avoid harming people's eye health because the light box is too bright and too dazzling in the case of dim natural light. In addition, osram intelligent lighting control system can control the details accurately according to the actual geographical location, preset sunrise and sunset time, so that the lighting \"switch\" and \"brightness\" and other parameters more in line with the local practical application.\nOsram's signage system has already been implemented in Singapore changi International Airport, Dubai Shopping Mall, Hilton Hotel, Bottega Veneta brand store and other projects. In the future, Osram signage lighting system will adhere to the principle of \"sustainable development\", launch more solutions, committed to achieve \"sustainable\" environmental protection applications, in order to better cope with the changes of human living environment, fully meet the needs of human \"sustainable\" health lighting.","domain":"optical_engineering"}
{"url":"http://creativeleddesigns.com/product/par30-led-lamps-cob/","date":"2017-03-29T11:12:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190295.4/warc/CC-MAIN-20170322212950-00536-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8284610509872437,"token_count":94,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__110979361","lang":"en","text":"With our high-CRI dimmable PAR30 LED lamps, you find a direct replacement for 75 Watt PAR30 spot lights. Decorative LED lamps closely mimic the look and feel of incandescent, but they last much longer keeping fixtures fully illuminated.\nOur PAR30 lamps are available in warm white (2800-3000K) and natural white (4000-4500K)\nVoltage: 110V AC\nBeam Angle: 30 deg.","domain":"optical_engineering"}
{"url":"https://www.mjoptc.com/news/how-to-adjust-the-aperture-of-the-lens/","date":"2023-09-30T15:11:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510697.51/warc/CC-MAIN-20230930145921-20230930175921-00871.warc.gz","language_score":0.9513800144195557,"token_count":477,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__282140299","lang":"en","text":"When adjusting the iris, the iris is always in a larger aperture state. Only when the shutter button is pressed to release the shutter, the aperture automatically shrinks to the set f-factor, and the aperture returns to a larger aperture after exposure.\nWhat is the lens? The lens has two fingers in film and television, one refers to the optical components used by movie cameras and projectors to generate images, and is composed of multiple lenses. A variety of different lenses have different modeling characteristics. Their application in photographic modeling constitutes an optical expression method; the second refers to a continuous picture taken from power-on to power-off, or a segment between two splicing points , Also called a ytterbium. One finger and two fingers are two completely different concepts. In order to distinguish the difference between the two, one refers to the optical lens and the two refers to the lens image.\nThe lens referred to in film and television is not a lens in a physical or optical sense, but a lens that carries an image and can form a picture. The lens is the basic unit that composes the entire film. Several shots constitute a paragraph or scene, and several paragraphs or scenes constitute a film. Therefore, the lens is also the basic unit of visual language. It is the basis of narrative and expression. In the pre-shooting of film and television works, the lens refers to the sum of a section of pictures taken by the camera from start to standstill; in the post-editing, the lens is a set of pictures between two editing points; in the finished film, one The lens refers to the complete segment from the previous optical transition to the next optical transition.\nThe main function of the lens is to collect the reflected light from the illuminated object and focus it on the CCD. The image projected on the CCD is upside down. The camera circuit has the function of reversing it, and its imaging principle is the same as that of the human eye.\nLens classification: According to the origin of the lens, it is mainly Japanese lens and German lens. Japanese lenses mainly have better color reproducibility, and German lenses have a stronger sense of layering. On the market, Chinese lenses are gradually occupying the market, mainly because the prices are relatively low.\nPost time: Oct-08-2021","domain":"optical_engineering"}
{"url":"https://grayguns.com/product/vtac-sights-sig-sauer-pistols/","date":"2021-05-07T18:57:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988802.93/warc/CC-MAIN-20210507181103-20210507211103-00552.warc.gz","language_score":0.8223008513450623,"token_count":287,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__71999707","lang":"en","text":"VTAC Sights – SIG Sauer Pistols\n$160.00 – $175.00\nKyle Lamb and his team at Viking Tactics developed a combat-proven sight design featuring both fiber and tritium dots for effectiveness day and night.\nBelow, you will find a chart to match up the correct size combination for your SIG Sauer® pistol. Sight specifications are also listed. Review the chart and additional details carefully prior to ordering.\nThe rear sight is designed with a proper shelf to rack the slide one-handed on your belt, boot or other object.\nFront Sight Height\n- Size 6 height is 0.260 inches\n- Size 8 height is 0.250 inches\n- Front sight top width 0.118\n- Front sight bottom width 0.157\n- Rear sight notch width 0.137\n- Rear sight notch depth 0.192\n- Rear sight overall width 0.663\n- Front sight height above slide 0.225\n- Rear sight height above slide 0.272\nPistol Sight Size Reference Chart\nImportant Note: The reference chart is for slides with standard dovetails. If your pistol slide is milled for a sight plate – now popular to allow for installation of a red dot – these sights will most likely not work for you.\nGreen Fiber Front & Rear, Green Fiber Front & Steel Rear\n8 Front, 8 Rear, 6 Front, 8 Rear","domain":"optical_engineering"}
{"url":"http://eyekonmedical.com/hydrophilic-information/","date":"2017-10-24T02:13:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187827853.86/warc/CC-MAIN-20171024014937-20171024034937-00712.warc.gz","language_score":0.9405167698860168,"token_count":612,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__234806326","lang":"en","text":"EyeKon’s Natural Yellow Lenses For Optimal UV Protection\nYellow lenses are UVA blocking and violet light filtering! These intraocular lenses use\n2-HydroxyKynurenine for hydrophilic IOL’s and\n4-Phenyldiazenyl Phenyl Methacrylate for hydrophobic IOL’s, having the same light spectrum. This is the way Mother Nature designed our natural lens. It blocks UVA and filters out the harmful violet rays, while still allowing some beneficial violet rays to enter.\nWhat are Intraocular Lenses?\nAn Intraocular lens (IOL) is a biocompatible material that is surgically implanted to replace or supplement the eye’s natural crystalline lens. They have been used in the United States since the late 1960s to restore vision to cataract patients, and more recently are being used in several types of refractive eye surgery. To understand how an intraocular lens works, you need to understand how the eye’s natural lenses function.\nThe eye works like a camera with two lenses. One lens is the cornea, a clear membrane that covers the front of the eye. The other lens is the eye’s natural crystalline lens, which is located behind the pupil. The cornea is responsible for about 70 percent of the eye’s focusing power, while the natural lens “fine-tunes” the image before it is focused on the retina at the back of the eye. The retina works like the film in a camera, receiving light images and sending them through the optic nerve to the brain. If both lenses are working properly, the image is focused precisely on the surface of the retina, and the result is perfect “20/20” vision.\nWhat is a Cataract?\nA cataract is a clouding of a part of the eye known as the crystalline lens. This is a clear tissue located behind the pupil – the dark circular opening in the middle of the iris or colored part of the eye. It works with the transparent cornea, which covers the eye’s surface, to focus light on the retina at the back of the eye. When this lens becomes cloudy, or cataractous, light cannot pass to the retina properly, and vision is blurred and decreased. Surgery to remove the diseased lens is the only effective treatment for a cataract. Neither diet nor medications have been shown to stop cataract formation. Cataract surgery is now a frequently performed operation in most parts of the world. More than one million cataract procedures are performed every year, and in the majority of those cases, the diseased tissue is replaced with artificial devices known as IOL’s. Our IOL products may be obtained from a distributor serving your geographic area. To find a distributor serving your area, contact our Customer Service Department at (727)793-0170.","domain":"optical_engineering"}
{"url":"http://www.exclamationagiftshop.com/auto/20/20_Vision_Panoramic_Rear_V.shtml","date":"2016-12-02T17:55:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-50/segments/1480698540409.8/warc/CC-MAIN-20161202170900-00133-ip-10-31-129-80.ec2.internal.warc.gz","language_score":0.9110652804374695,"token_count":330,"dump":"CC-MAIN-2016-50","global_id":"webtext-fineweb__CC-MAIN-2016-50__0__55383182","lang":"en","text":"20/20 Vision Panoramic Rear View Mirror\n20/20 Vision Panoramic Rear View Mirror is available at a great price !\nAuto Barn has been serving the automotive enthusiast and professional installer in New York since 1957. AutoBarn.com now brings their experience, service, and tremendous inventory to customers across the United States. and they offer a great price on - 20/20 Vision Panoramic Rear View Mirror !\nCustom Towing Mirrors by CIPA>Rear View Mirrors :\nImproved Field Of Vision ''20/20 VISION MIRROR''. It is a NEW panoramic rear-view mirror. The mirror eliminates all blind spots. For added Safety. It provides a 300 percent wider angle view than conventional mirrors. It is made of the highest quality optical crystal glass and each mirror is treated with anti-glare advance technology that automatically cuts the annoying glare from headlights to ease night driving. 20/20 Vision mirrors are convenient to install too. They securely clip on and off over your present mirror so they're easy to take with you if you buy another vehicle or use a rental car. A 20/20 Vision mirror is not just a rearview mirror. It's a valuable safety item adding clarity - quality and depth to your driving. Any 20/20 Vision mirror will give you and your family added peace of mind. Item #01350 (Standard) is recommended for use in compact and small/medium automobiles. Item #01430 (Large) is recommended for use in mid-size and large automobiles. Great for vans and trucks too!\nCheck out this item at AutoBarn now !","domain":"optical_engineering"}
{"url":"https://www.shopcalypse.com/top-10-best-binoculars","date":"2023-09-29T21:20:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510528.86/warc/CC-MAIN-20230929190403-20230929220403-00501.warc.gz","language_score":0.9484565258026123,"token_count":502,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__310671037","lang":"en","text":"Are you having a hard time looking for a good pair of binoculars whenever you’re planning to go sightseeing? This list of top 10 best binoculars together with their awesome features is perfect for you.\nThis binocular offers great magnification at a very affordable price and comes with a carrying case. It is versatile and perfect for hunting, bird-watching, stadium sports, and other outdoor activities.\nThe Athlon Optics is made from high-quality materials to ensure that you will see things or images sharper and clearer. It adopts new advanced technology and coated with several layers for an accurate and nicer color\nThis binocular for adults is perfect for both outdoor and indoor activities such as watching a scenery, concerts, and wildlife, driving, and hiking. However, the Gosky binoculars are equipped with clear prism and multi-coated green film lens. So that you will able to see distant objects clearly.\nThis Binocular from Nikon features multi-coated prisms and lenses that are exclusively made using arsenic and lead-free Eco-glass. When you use this good pair of binoculars, you can easily toggle over a variety of magnification settings.\nThe lenses of this binocular are built with a coating that hindrances reflections and to improve image clarity and brightness. It also offers a wide-range of a field of vision that is perfect for sightseeing beautiful panoramic views.\nAre you looking for a pair of binoculars for your outdoor activities? Then this compact and small binocular that has eight times magnification is for you. Moreover, both adults and kids can use this one because its center focus handle can be adjusted.\nThe Celestron Skymaster Giant binocular comes with a tripod adapter and coated with several layers. This binocular can be used in low or bright light condition. For your convenience, this item can be adjusted easily.\nThis spotting scope comes with great features and made from high-quality materials. For better protection, its exterior part is coated so that the lenses will be free from oil, dirt, and scratches. In addition to that, this binocular can protect your vision from reflection.\nThe Pentax 8.5×21 U-Series Papilio II Binocular comes with eyepiece covers, a carrying case, and neck strap. It has twist-up rubber eyecups to provide accommodations to eyeglasses wearers. And allows you to see your target objects easily.","domain":"optical_engineering"}
{"url":"https://decoraciondecasas.ml/kowa-883-kit/kowa-883-scope/","date":"2019-12-10T18:17:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540528490.48/warc/CC-MAIN-20191210180555-20191210204555-00537.warc.gz","language_score":0.848381757736206,"token_count":392,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__67147872","lang":"en","text":"Kowa TSN-883 Angled Spotting Scope The pure fluorite crystal used in these models is the optimum optical material for reducing chromatic aberration, providing . Kowa TSN-883 88mm PROMINAR PFC Spotting Scope (Angled Viewing, Requires Eyepiece) . The TSN-883 Angled 88mm PROMINAR PFC Spotting Scope is a world-class spotter that redefines the standards of color brilliance, sharpness, and brightness. . TSN-883 88mm PROMINAR PFC Spotting Scope . Kowa TSN-883 Spotting Scope The TSN-880 series is the larger of the two newest scope lines from Kowa. We've reviewed scopes before. We've reviewed . The TSN-883 is the flagship of the Kowa spotting scopes, with an extremely large 88mm objective lens diameter. The enthusiasm of Kowa's 50 years of spotting . Buy Kowa TSN-883 Prominar Angled Spotting Scope Body from Ace Optics, established for over 30 years in Bath and stockists of a range of Kowa products. This scope's 88mm Prominar objective lens is made of natural fluorite crystal. Specs below . Kowa TSN-883 88mm Prominar Pure Fluorite Scope Body Angled. After first seeing the range of Kowa TSN scopes at the British Birdwatching Fair (Birdfair) a few years ago, I really wanted to get my hands on one to fully review. Find great deals for Kowa TSN-883. Shop with confidence on eBay! . Buy It Now. New. New. Kowa TSN-883 88mm Prominar Angled Spotting Scope Body . Kowa TSN-883 spotting scope redefines clarity for birders and hunters. This is because, among other impressive features, this spotting scope has a large 88mm .","domain":"optical_engineering"}
{"url":"https://www.leadartech.com/pages/25.html","date":"2024-04-22T21:39:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818374.84/warc/CC-MAIN-20240422211055-20240423001055-00841.warc.gz","language_score":0.9294746518135071,"token_count":180,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__171853731","lang":"en","text":"LeadArt INTRAPTM technology is an in-vivo binding assay designed to measure the interaction between a ligand and its target protein via a specifically designed probe. This assay is suitable for high throughput screening (HTS) of chemical ligands used in food, dietary supplements, or pharmaceuticals for various protein targets.\nProbe for almost any protein target could be discovered from LeadArt’s proprietary probe library or created utilizing known ligands of the target. The probe will specifically bind to the target and can be detected through various readout e. g., fluorescence. These probes will be valuable for screening compounds that can interfere with the binding between the probes and their target proteins within live cells.\nThe INTRAPTM technology eliminates the need for protein modification or purification and can be applied in various live system including cell lines, primary cells and organoids models et al.","domain":"optical_engineering"}
{"url":"http://thephotonfactory.com/PD-V1-24.shtml","date":"2017-11-20T05:30:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805914.1/warc/CC-MAIN-20171120052322-20171120072322-00505.warc.gz","language_score":0.8659636378288269,"token_count":389,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__22709070","lang":"en","text":"PlasmaDrive is a modular LED driver with 24 constant-current 20mA, common-anode LED outputs which can be used individually or combined to control up to 8 separate tri-color RGB LEDs or a mixture of both RGB and single-color LEDs. The outputs can be connected directly with your own wiring and LEDs or use our LED modules and accessories.\nEach unit employs a microprocessor and LED Driver to provide precise control over each of the LED outputs. The device is programmable via USB and the provided application, with 76 memory slots for retaining the LED values, as well as fade and hold times for the programmed sequence. The device can also be controlled from your own software, writing values to the LEDs or memory slots as well as controlling playback functions.\nThis versatile LED controller is powered via Micro USB connector or another +5V source as selected by an on-board jumper or permanently via solder bridge. The programmed sequences are maintained in nonvolatile memory, so you can program the device, disconnect it, then later power the device from a regulated battery pack or other power source without losing the stored data. When power is later applied, the loaded sequence will automatically begin playback.\nUse the PlasmaDrive to add color to your next project with our LED modules and / or with your own circuit or wiring. PlasmaDrive offers the flexibility of user-determined LED placement and functionality with the advanced features of an off-the-shelf product.\nFor indoor Use, Dry locations only.\nSize: 1\" x 1.5\"\nPower Requirements: Micro USB or External +5V @ 0.5 A max.\nOutput: 24 common-anode, constant-current 20mA outputs\nMemory: On-board, 76 unique slots with adjustable hold and fade rates.\nGet assembly instructions here.\nHigh Quality RGB LEDs: LED-RGB-CLV-8\nPower Adapter: USB AC Adapter","domain":"optical_engineering"}
{"url":"http://en.selon.kr/LEDHighBayLight03","date":"2023-04-02T11:28:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950528.96/warc/CC-MAIN-20230402105054-20230402135054-00205.warc.gz","language_score":0.7445465922355652,"token_count":252,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__42424737","lang":"en","text":"Wing-type heat dissipation structure\nLight efficiency improvement\nMaximizes heat conduction area of LED substrate, decreases LED temperature by 5-10 degrees or more when operating to improve reliability and luminous efficiency. It also decreased product weight using heat dissipation wings made of light aluminum.\n|Light Efficiency (lm)||: More than 115|\n|Color Rendering (CRI)||: More than 75|\n|Color Temperature (K)||: 5,665±355|\n|Country of Origin||: South Korea|\nFor questions related to cooperation, contact our headquarters anytime.\ne-Catalogue & Pre-qualification statement\nDownload catalogue or pre-qualification statement\nSEL ON Co., Ltd. / CEO : Kwang-sun, Lee\nBiz License : 615-81-68795\nTel. +82-55-346-3993 | Fax. +82-55-346-3994 | email@example.com\n1147-1, Hallim-ro, Jinyeong-eup, Gimhae-si, Gyeongsangnam-do, Republic of Korea","domain":"optical_engineering"}
{"url":"https://mycylyjydohuzabil.pacificwomensnetwork.com/laser-light-and-nectar-book-13550za.php","date":"2021-07-28T12:55:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153729.44/warc/CC-MAIN-20210728123318-20210728153318-00458.warc.gz","language_score":0.8919506669044495,"token_count":2052,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__246390556","lang":"en","text":"2 edition of Laser light and nectar found in the catalog.\nLaser light and nectar\nErrata slip inserted.\n|Statement||by Laurraine Goreau.|\n|LC Classifications||PS3557.O734 L3 1986|\n|The Physical Object|\n|Pagination||x, 111 p. :|\n|Number of Pages||111|\n|LC Control Number||87400759|\nLasers in dentistry. 1. Introduction, history of lasers and laser light production. 2. Laser-tissue interaction. 3. Low-level laser use in dentistry. 4. Lasers and soft tissue: 'loose' soft tissue Cited by: Get this from a library! Laser light. [Herman Schneider; Radu Vero] -- Discusses laser and non-laser light, the laser beam and apparatus used to produce it, and the applications of lasers. Includes experiments.\nHere you’ll find the latest laser therapy machines and most innovative laser therapy machines and equipment for sale. From superficial to deep tissue healing and pain relief, these laser light equipment products harness the power of laser and infrared technology to . A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic term \"laser\" originated as an acronym for \"light amplification by stimulated emission of radiation\". The first laser was built in by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur.\nWhat is laser/light therapy? Laser/light therapy is a non-invasive procedure that uses light energy to repair and regenerate damaged skin. Benefits of the procedure include: Elevation of ATP production, resulting in increased energy for cells. Increased endorphin production, resulting in less need for pain medication. Improved immune response. Shopee Mini Laser Projector Stage Lighting Sound Activated Laser Light For Party And Dj out of 5 stars 26 ₹ ₹ ₹2, ₹2, Save ₹1, (60%).\nDescription of chairmans amendment in the nature of a substitute to H.R. 1727, the Fallen Hero Survivor Benefit Fairness Act of 2001\nThe four wise men\nuse of S.I. units.\nAdvanced Materials & Processing\nAre these our children?\nbibliography of librarianship\nCongregational year book.\nMembers, meetings and auditors\n1991-92 Pell Grant payment and disbursement schedules.\nSeparation from skilled occupations\nA full and true account of the proceedings relating to the New Meeting-House, in Redcross-street: partly in answer to the false account lately published by Mr. John Dolman. By the proprietor thereof, Dorcas Master. In two parts. Part I\nRedundancy and the law\nChims DJ Laser Light Show Projector Red Green Blue Laser with LED 96 Patterns RGRB Remote Control Music Sound Activated Lighting System Projector for Holiday Gift Family Party DJ Disco Show Karaoke out of 5 stars Star Shower Motion Laser Light by BulbHead - Indoor Outdoor Laser Light for Hassle-Free Holiday Decorating – Sparking or Still Red and Green Laser Lights Cover up to.\nThis book is comprised of eight chapters and begins with a discussion on the interrelationship between laser light scattering and other types of scattering techniques that use X-rays and neutrons, with particular reference to momentum and energy transfers as well as time. Part of the practical and dynamic Procedures in Cosmetic Dermatology Series, Lasers and Lights, 4th Edition, brings you up to speed with today’s best methods for using laser light to treat skin disorders.\nThis well-organized text by Drs. George J. Hruza and Elizabeth L. Tanzi provides current, authoritative guidance on popular procedures including laser hair Laser light and nectar book, tattoo removal, acne.\nThe light released is coherent. It is “organized” -- each photon moves in step with the others. This means that all of the photons have wave fronts that launch in unison. The light is very directional. A laser light has a very tight beam and is very strong and concentrated.\nA flashlight, on the other hand, releases light in many directions. Generic 2 Pcs. 3 In 1 Multifunction Mini Laser Light Pointer Uv Led Torch Flashlight Keychain Emergency Lights out of 5 stars 46 ₹ ₹ ₹ ₹ Save ₹59 (24%). Blue Light Therapy Acne Laser Pen Soft Scar Wrinkle Removal Treatment Device.\n$ New. B-cure Laser Therapy Pain Wounds Burns Sports Injuries. out of 5 stars (6) Total Ratings 6, Low Level Laser Light Therapy Devices.\nPhilips Light Therapy Lamp Light Therapy Devices. Make an Offer. Part of the practical and dynamic Procedures in Cosmetic Dermatology Series, Lasers and Lights, 4th Edition, brings you up to speed with today's best methods for using laser light to treat skin disorders.\nThis well-organized text by Drs. George J. Hruza and Elizabeth L. Tanzi provides current, authoritative guidance on popular procedures including laser hair removal, tattoo removal, acne scars Pages: 4 1 Lasers: Fundamentals, Types, and Operations N N E 0 E E 1 E 3 E 0 E E 1 2 Fast decay Fast decay Fast decay Pumping Pumping Lasing Lasing (a) (b) Figure Energy level diagram for (a) three- and (b) four level laser systems.\nN 1 to achieve the condition of population inversion between E 2 and E 1 at moderate pumping. Threshold Gain Coefficient for Lasing Laser beam undergoes.\nLaser books was a Sci-Fi imprint of Harlequin Books in the 's, in an attempt to create a \"category sci-fi\" genre akin to their popular subscription romance titles.\nThe series was edited by Roger Elwood and featured distinctive branding and cover art by well-known Hugo-Winning artist Kelly Freas. Now in this article, I’ll be giving you all of the best outdoor laser lights for Christmas and tell you why they are part of our best list, this way, we’d be helping you know which outdoor laser light would be the best fit for you.\nCHAPTER 7. LASERS Argon and Krypton Ion Lasers Similar to the HeNe-laser the Argon ion gas laser is pumped by electric dis charge and emitts light at wavelength: nm,nm,nm,nm, nm, is used in applications ranging from retinal photother apy for diabetes, lithography, and pumping of other Size: KB.\nLaser Light (No-Cut) will print Vector files without a problem (as demonstrated in the above video); but when it comes to photographs and more complex artwork, the FOREVER TransferRIP produces results that are unobtainable via any other printing method.\nThe FOREVER TransferRIP is a user friendly printing software that allows you to remove colours, change colours, and adjust your artwork.\nLaser light differs from conventional light in that all the lightwaves are in phase with each other. Brightness (or, more correctly, radiance) — The most strikingly visible difference between lasers and conventional light sources is that all the emitted light travels in the same direction as an intense beam.\nThe laser light is monochromatic means colored. Thus laser light is monochromatic light means that laser light is only a single color light. The monochromaticity is the major characteristic of laser making it different from ordinary light. To prove the monocromaticity of laser light, we can use prism.\nPurchase Lasers and Lights - 3rd Edition. Print Book & E-Book. ISBN If a laser holiday light shines into a cockpit, it creates a large windshield-filling blob of light, temporarily causing flash blindness in the pilot and co-pilot, even if it doesn't hit them directly in the eyes.\nIf somebody has ever taken your photo at night and used the flash, then you are probably familiar with the effects of flash. Laser light is different from the conventional light.\nLaser light has extra-ordinary properties which are not present in the ordinary light sources like sun and incandescent lamp. The conventional light sources such as electric bulb or tube light does not emit highly directional and coherent light whereas lasers produce highly directional.\nLASER DIODES FOR NEXT GENERATION LIGHT SOURCES Providing the brightest, most efficient laser light sources to the world JAMES W. RARING GM, VP ENGINEERING DOE SSL R&D Workshop Raleigh, NC February 3, See the difference a LiteCure Medical laser makes with consistent results and fast treatment times.\nRequest a demo Lukens Dr, Ste A New Castle, DE (). “The Sealed Nectar is a complete authoritative book on the life of Prophet Muhammad (S) by Sheikh Safi-ur-Rahman al-Mubarkpuri. The Sealed Nector was honoured by the World Muslim League as first prize winner book. Whoever wants to know the whole life style of the Prophet in detail must read this book.This is the books to use for anyone interested in learning about using a class 4 system in the veterinary field.\nMost of the other laser books will recommend very low dosages that are not realistic for use with a class 4 system.\nThis book has very clear and easy to sue to protocols. Light and Laser Therapy: Clinical Procedures\" by Curtis Turchin. Fundamentals of Light Sources and Lasers Sources and Lasers closes a clear gap in the current literature by concentrating on the principles of laser operation as well as providing coverage of important concepts necessary to fully understand the principles involved.\nThe scope of the book includes everything a professional needs to get up to.","domain":"optical_engineering"}
{"url":"http://www.galaiosphoto.gr/product_info.php?products_id=7070&osCsid=if8bpegn6559ojbfu9npmc5lmlokrd69m6qk9q00rkoc3ua00pe1","date":"2018-06-22T20:50:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864795.68/warc/CC-MAIN-20180622201448-20180622221448-00019.warc.gz","language_score":0.676183819770813,"token_count":252,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__249924023","lang":"en","text":"Lens construction 13 elements in 10 groups\nMinimum aperture F16\nFilter size φ82㎜\nAngle of view (35mm) 18.2°\nMinimum focusing distance 87.5cm / 34.4in.\nDimensions (diameter × length) Φ91.4mm × 114.9mm / 3.6in. x 4.5in.\nNumber of diaphragm blades 9 (Rounded diaphragm)\nMaximum magnification ratio 1：5\nWeight 1,130g / 40.9oz.\nAppearance and specifications are subject to change without notice.\nCase, Hood LH880-03 are included.\nCorresponding AF Mounts\nSIGMA / NIKON / CANON\nThe Nikon mount version of this lens includes an electromagnetic diaphragm mechanism. Functionality may be limited on some camera bodies.\n* Please see camera compatibility chart below.\n©2018 Πρόδρομος Γαλαίος - Φωτογραφικά Είδη\npowered by Zoutsos, az01.eu","domain":"optical_engineering"}
{"url":"http://thesunshipgame.com/Ophthalmology%20Surgical%20Microscope%202021","date":"2021-04-21T19:25:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039550330.88/warc/CC-MAIN-20210421191857-20210421221857-00209.warc.gz","language_score":0.7593498826026917,"token_count":1918,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__198904683","lang":"en","text":"There are many configurations available that can be custom tailored to your Surgical Teams exact requirements. There are many optional accessories that can be added or removed from any system configuration such as a video documentation, and co-observation systems to best suit your Surgeons needs. Many Popular models include the Zeiss Opmi MD Series, Zeiss Opmi Visu, Zeiss Lumera. This model of operating microscope is primarily used for ophthalmology and ophthalmic eye surgery. The main features of this surgical microscope are the full motorization of the controls and the zoom magnification. The motors are controlled by the foot and also by the hand. It also features a tiltable main head that the surgeon can rotate to any convenient angle. suzhou liuliushijur keji gufen youxiangongsi is best Surgical Operating Microscope, Slit Lamp Microscope and Manual Keratometer supplier, we has good quality products & service from China. The surgical microscopes of the SOM® 62 series are extremely space-saving and ideally equipped for surgical procedures on the eye - whether routine procedures or complex surgeries on the posterior eye. Kaps relies on its proven modular system and offer almost unlimited equipment options, individually tailored to your requirement profile. Cutting-edge Surgical Microscope for Ophthalmology – Perform Cataract Surgery Confidently. 4th July 2019. Statistically speaking the most common procedure in Europe is cataract surgery, which has been conducted more than 4.5 million times by eye surgeons.\nSurgical Microscope Video Recorders Record MP4 videos, JPEG photos of your ophthalmic procedures to USB hard drives, and networks. Easily place in PPt, Keynote or upload online. 02.08.2017 · The OPMI LUMERA® family from ZEISS represents excellence in optics and illumination, with a reputation for delivering high-quality visualization technology. The ZEISS OPMI LUMERA 300 with.\nThis microscope suits all of the surgical needs of small and mid-size ASCs and integrates with vitreoretinal accessories. Surgical workflow is optimized by a rotatable beam splitter, a two-beam path solution for a temporal approach to cataract surgery. Leica M844. offers 346 ophthalmology surgical microscope products. About 35% of these are microscopes, 8% are other optics instruments, and 2% are the basis of surgical instruments. A wide variety of ophthalmology surgical microscope options are available to you, such as biological microscope, stereo microscope, and video microscope. The high end technology surgical microscope HS Hi-R NEO 900 provides all that is needed for first class surgery – including the option of the world's first intraoperative OCT. The smaller HS ALLEGRA microscopes are the perfect choice for all surgical centers: HS ALLEGRA 900: The expert for cataract centers with zoom optics. Surgical Microscopes from ZEISS The first prototypes of the first surgical microscope - the OPMI ® 1 – were developed at ZEISS in Oberkochen in the early 1950s under the guidance of physicist Hans Littmann and the leading surgeon Prof$1.Dr. Horst Wullstein.\nThe Zeiss OPMI Lumera is a surgical microscope for use in the field of Ophthalmology. Developed by Carl Zeiss Meditec with the needs of surgeons in mind, the Lumera is equipped with revolutionary Carl Zeiss optical technology, new ergonomic and innovative features, and the Stereo Coaxial Illumination SCI to deliver crisp, clear, and high. To get a broad view of the current trends in surgical microscopes, The Ophthalmic ASC talked to surgeons about the technologies helping to improve their patient outcomes today, and then followed up with major manufacturers to ask about new and emerging innovations. Advanced Options and Outcomes. Founded on April 1st, 1946, and headquartered in Asslar near Wetzlar, Karl Kaps GmbH & Co. KG is specialized in the development and manufacture of modern surgical and diagnostic microscopes. The high-end products are used all over the world in ENT, ophthalmology, microsurgery, endodontics and gynecology. The company has also made a name for. Unsere Entwicklungen für die Augenheilkunde ermöglichen es Ihnen, mehr zu sehen und somit bessere Entscheidungen bei der operativen Behandlung von Retina, Glaukom, Katarakt und Hornhaut zu treffen. Mit einem ZEISS OP Mikroskop für die Ophthalmologie wird das Auge hervorragend visualisiert. Das Gerät ist ergonomisch gebaut und bietet viele. Based on the strong research capability and over 30 years of experience, we have developed dozens of different models of operation microscopes in four series, such as LZJ-6D ophthalmological Operating microscope, ophthalmological surgical microscope, Ophthalmic, Ophthalmologic, ophthalmologysurgical microscope,XTS-4C-Eyes orthopedics.\nDescription. Ophthalmic surgeons need the best visualization to be able to operate with the highest precision. Ophthalmology microscopes from Leica Microsystems are world-renowned for premium optics and illumination that provide outstanding image quality. The Verion ® Digital Marker links to compatible surgical microscopes to display concurrently the reference and microscope images, allowing the surgeon to account for lateral and rotational eye movements. In addition, details from the Verion ® Reference Unit surgical plan can be overlaid on a computer screen or the physician's microscope view. Ophthalmology Surgical Microscopes. The Ophthalmology Surgical Microscopes are a member of the Haag-Streit family of gold standard slit lamp optics and optical biometers. Therefore you can expect the finest German/Swiss advanced optics from Haag-Streit. Red reflex is variable and adjustable to your patient’s position and anatomy. Also, it is. An eye surgeon is responsible for selecting the appropriate surgical procedure for the patient, and for taking the necessary safety precautions. Subspecialties. Ophthalmology includes subspecialities which deal either with certain diseases or diseases of certain parts of the eye. Some of them are: Anterior segment surgery. The use of this innovative HMS technology in Ophthalmology was first reported by our group, [Dutra-Medeiros et al.]. We performed several ophthalmic surgeries using the Haag-Streit Surgical microscope HS Hi-R NEO 900 Haag-Streit Surgical GmbH, Wedel, Germany connected to the Sony Head-Mounted System HMS-3000 MT device.\nOphthalmology microscope China Surgical microscope Neurosurgery microscope Brain surgery microscope ENT surgical microscope Dental operating microscope Oral surgical microscope Orthopedic surgery microscope, Hand surgery microscope The cosmetic skin Branch surgical microscope Family planning microscope Eye surgery microscope Eye orthopaedic.\nAuf Der Suche Nach Remote-jobs 2021\nGrand Prix Von Belgien Wohnmobil 2021\nFischnetz Crop Top 2021\nLindenholz Aufbewahrungsbank 2021\nGoogle Senior Engineer-gehalt 2021\nBibelverse, Die Das Christentum Definieren 2021\nLego Clone Scout Trooper 2021\nJennifer Garner Neuester Film 2021\nMotivationsschreiben Für General Worker 2021\nOld St Andrews Scotch 2021\nDiamantring In Kronenfassung 2021\nThierry Mugler Alien Red 2021\n2018 Turbotax Online Intuit Ca 18 2021\nMetal Heavy Metal 2021\nBesenreiser-laser Zu Hause 2021\nTrauerzitate Für Großvater 2021\n1985 Harrison Ford Film 2021\nM Leistungsauspuff M4 2021\nStihl Fs85 Trimmer 2021\nStar Trek Ensign Uniform 2021\nWww Amazon In Gp Mobile Deals 2021\nLanges Haar Schildpatt Katze 2021\nKakaokuchen Brownies 2021\nLa Cantera Spa 2021\nMta U-bahn 5 Zug 2021\nKeto Coffee Shop In Meiner Nähe 2021\nBrunswick Anniversary Pool Table Zu Verkaufen 2021\nStromschlag Gefühl In Rippen 2021\nKurze Kurse An Der Nelson Mandela University 2021\nBeispiele Für Gesprächsunterbrechungen 2021\nListe Der Guten Eigenschaften 2021\nEinfache Puzzles Für Senioren 2021\nGlückliche Erntedank-katzen-bilder 2021\nGlühwein Cabernet Sauvignon 2021\nGültiger Kategorialer Syllogismus 2021\nGenki Sushi Lieferung 2021\nGoogle Earth Backup Meine Orte 2021\nGeschmack Von Zu Hause Apple Crumb Pie 2021\nBangladesh West Indies Dream11 Team 2021\nBrabus G63 Amg 6x6 2021","domain":"optical_engineering"}
{"url":"http://home.earthlink.net/~gstevens915/pmars.htm","date":"2013-05-23T11:20:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703293367/warc/CC-MAIN-20130516112133-00037-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.670783281326294,"token_count":198,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__81714640","lang":"en","text":"Telescope: Takahashi FS-152 f/8 fluorite refractor at f/28 using 20mm eyepiece projection\nZeiss II German Equatorial Mount\nSanta Barbara Instrument Group ST-8E NABG CCD camera (1530 x 1020 pixels, 9 x 9mm, monochromatic, 16 bit, 13.8 x 9.2mm array)\nCWF8 color filter wheel with IR-blocking red, green and blue dichroic filters\nDate: Saturday, June 9, 2001\nLocation: Charlton Flats, CA\nElevation: Approx. 5300', OAT +50F\nExposures: 0.2 seconds, 10 each through red, green and blue filters.\nMars apparent diameter: 20.3 arc-seconds\nRaw image scale: 0.43 arc-seconds/pixel. EFL=4300mm. Final image resampled 2x in Photoshop.","domain":"optical_engineering"}
{"url":"https://www.node-magazine.com/thoughtleadership/making-augmented-reality-enterprise-ready","date":"2024-04-19T12:02:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00026.warc.gz","language_score":0.9306383728981018,"token_count":965,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__93135683","lang":"en","text":"Augmented reality will play a major role in transforming the way we live and work. PwC’s recent report titled ‘Seeing is believing’ suggests that AR has the potential to add over $1 trillion to the global economy by 2030 and many crucial industries including manufacturing, healthcare, energy and retail stand to benefit from it. However there are two fundamental optical issues that are preventing us from fully harnessing its potential.\nUnless you’re an ophthalmic expert, you probably have never heard of vergence accommodation conflict (VAC) and focal rivalry. According to a recent report from specialist AR/VR industry analysts at Greenlight Insights, these obscure but important optical facts are impacting 95% of all current AR applications – in a way that is blocking their true enterprise potential.\nFocal rivalry prevents us from accurately placing virtual objects in real space\nFocal rivalry impacts both believability and accuracy of mixed reality experiences and AR will struggle to realise its true potential if we can’t address it. Currently, when we are looking at objects through AR systems, our eyes must choose between seeing either virtual or real content clearly – we can’t focus on both. This is obviously a serious limitation for AR.\nThe University of Pisa has recently conducted a study exploring how focal rivalry affects people’s performance when using AR to complete precision tasks. The findings suggest that high-precision manual tasks may not be feasible with the current AR systems because of focal rivalry.\nWhen AR is used for tasks such as surgery or engineering, focal rivalry will limit the usefulness of the technology. The inability to meaningfully integrate virtual content in the real world is holding us back from designing AR-assisted applications that require accurate virtual content overlaid on the real world.\nVAC destroys user comfort and blocks close proximity applications\nVergence accommodation conflict decouples the natural vergence and accommodation responses in the eyes. As an object gets closer, our eyes naturally turn inwards (to triangulate on it) and this stimulates a change in focus. Because the lenses in an AR headset are set at a fixed distance from the eye, this natural response doesn’t happen.\nWhen virtual objects are brought up close to you, the mismatching cues received by your brain cause discomfort and eye fatigue. This requires users to take frequent breaks from the device, effectively preventing AR systems from becoming all-day wearables.\nVAC is also placing restraints on developers trying to create applications where virtual content can be interacted within arms reach. Microsoft is one of the most advanced AR headset manufacturers in the world but is currently stuck with advising content creators (in its developer guide) to place virtual content between 1.25m and 5m away from the user to ensure a comfortable mixed reality experience. This means that users will struggle with even the most basic tasks that require to be done in close proximity – such as reading.\nEngaging all the visual cues requires a dynamic optical interface\nThere are 23 visual cues that make up our natural perception of 3D space in the real world. Once all the visual cues are engaged in an AR system we can deliver a truly immersive, believable and useful mixed reality experience – that includes bringing content comfortably into close proximity and placing digitally-rendered objects accurately and convincingly in the real world.\nEighteen of the visual cues can be dealt with by upgrading software and hardware but no amount of improvements in these fields will resolve issues like VAC and focal rivalry. Our eyes cannot be fooled by software – the remaining five visual cues can only be engaged through the optical interface, through systems like dynamic fluid lenses and light field displays.\nAR headset manufacturers urgently need to integrate a dynamic optical interface system\nDespite the market being primed for growth, it will be limited unless fundamental optical issues are resolved. The recent focus on upgrading software and computer hardware, though important, has meant that the optical interface has become an under-represented area of innovation. The only way to avoid visual fatigue and accurately and believably mix real and virtual content is to use a dynamic focus solution.\nGreenlight Insights analysts reviewed all the key dynamic focus solution technologies currently in development for the AR sector, comparing their relative performance and likely time to market. A comprehensive comparison concludes that dynamic lens systems that can change the focal planes offer the best combination of addressing all the key issues. The analysts have also predicted that solving two fundamental optical issues would unlock an additional $10 billion in spending on enterprise AR applications by 2026.\nBy solving issues like VAC and focal rivalry we elevate the user experience of mixed reality devices – making them both comfortable enough for all-day use and also increasing their usefulness, particularly in enterprise scenarios.\nCEO of Adlens","domain":"optical_engineering"}
{"url":"https://cnygm.com/basic-knowledge-of-reflective-materials/","date":"2023-12-07T17:41:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100677.45/warc/CC-MAIN-20231207153748-20231207183748-00753.warc.gz","language_score":0.8661284446716309,"token_count":1396,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__8963174","lang":"en","text":"Basic Knowledge of Reflective Materials\nTable of Contents\nIntroduction of Reflective Materials\nWhat is reflective material?\nReflective material uses the principle of retroreflection (one of the types of light reflection), that is, where the light comes in and goes back out. It belongs to passive reflection that does not need to provide some additional energy, as long as there is light to do the return, to play a warning role, is a very safe, energy-saving, environmentally friendly products. Reflective material is a very difficult product, involving chemical polymers, physical optics, and high requirements for mechanical equipment, while the environmental requirements for the manufacturing process are very strict, such as temperature, humidity, the proficiency of personnel during operation, etc. Reflective materials involve a lot of raw materials, many uncertainties superimposed on each other increases the difficulty of the product.\nTypes of reflection of light\nThere are three types of reflection that you should be aware of:\n- Specular Reflection\nWhen the beam of light falls on a polished or smooth surface, then it bounces back from the surface in the same direction. This phenomenon is called specular reflection. The mirrors we look in every day are of this type.\n- Diffused Reflection\nWhen the beam of light falls on a rough surface, then it reflects in different directions, which is called diffused reflection, just like the screen of the cinema.\nRetroreflection is also called return reflection, as shown in the diagram, such as driving at night, if there is reflective material, the light of the car can return to the human eye, playing a role in advance prediction. This is the reason why reflective materials were first used in some special high-risk industries.\nElements with retro-reflective properties\n- Glass beads\nThe size of glass beads is expressed by “mesh,” which is the number of beads that can be densely arranged in a 1-inch length. The larger the mesh number, the smaller the particle size and the lower the reflectivity.\nFollowing are the characteristics of glass beads:\n- Particle Size: 30-90 microns.\n- Refractive Index: Divided into high refractive index glass beads and low refractive index glass beads, reflective materials used in the high refractive index glass beads, refractive index between 1.9-2.2.Low refractive index glass beads can be used in zebra lines, the particle size of such glass beads is very large, refractive index is also low, generally between 1.7-1.9.\n- Transparent: If the glass beads are not transparent, the light cannot be penetrated.\n- Spherical:If it is not round and spherical, it cannot form symmetrical reflection, that is, the function of return will be reduced.\nIt is a cube composed of three perpendicular right-angled triangles, which is the same as the diamond structure, commonly known as diamond material. YGM does not currently manufacture this type of product.\nApplications of Reflective Materials\n- Application Area\nPersonal safety protection field: Reflective fabric, Reflective heat transfer vinyl, Reflective clothing, Reflective printed fabrics.\nRoad traffic safety protection field: Reflective tape for vehicles.\n- Application Method\n- Stick Directly (Pressure Sensitive Type): Our reflective sheeting workshop products are basically pressure-sensitive adhesive type, so its most obvious feature is that there must be a protective release paper behind, or also a release film (such as 3100-K).\n- Sewing: It is the most used way.\n- Waving: That is, weaving reflective threads and reflective yarns into clothes, hats, bags, etc.\n- Hot Pressing: It’s suitable for heat transfer vinyl products and parameters such as temperature, time and pressure need to be set.\nClassification of Reflective Materials\nClassified by reflective elements\n- Glass beads type reflective material: Can be sewn or hot pressed.\n- Microprism type reflective material: Can be directly stuck or sewn, but can not be hot pressed (because the material is not resistant to high temperature, pressed will destroy the surface structure).\nClassified by reflective principles\n- Exposed reflective material\nGlass beads are semi-exposed. Structure of exposed reflective material: bottom carrier layer, middle glue layer, and an aluminum layer (for imaging) plated under the glass beads.\nNot all reflective materials have to be coated with aluminum layer, the color of the general bright reflective fabric (reflectivity is very low) without aluminum layer on the back; also can not be coated with aluminum layer, coated with other special media (light can also be reflected).\n- Buried reflective material\nGlass beads are not exposed outside. Structure of buried reflective material: bottom is release paper, binder layer (pressure-sensitive adhesive), aluminum reflective layer, focusing layer, glass beads, surface layer (different products surface layer is different – 3100 series surface is PET; 3200 series surface is Acrylic.)\n- Honeycomb type reflective material\nIt’s between exposed type and buried type. With more air layer, the route of light will not change.\nBrightness comparison: Exposed type reflective material > Honeycomb type reflective material > Buried type reflective material (not absolute).\n- Micro-prism type reflective material\nMicro-prism type reflective material is one of the types of honeycomb type reflective material.\n- Summary of the Classification of Reflective Principles\n- All reflective fabricsare exposed reflective materials.\n- Except high intensitygrade reflective sheeting and microprism reflective sheeting, all reflective sheeting are buried reflective materials.\n- Highintensity reflective sheeting is honeycomb type reflective material.\n- Microprism reflective sheetingis micro-prism type reflective material.\nClassified by backing material\n- Sewing Type— For reflective tape for clothing\nIt can range from 100% polyester to T/C, polyester spandex, 100% Cotton, 100% Aramid, 100% Nylon, PVC leather, PU leather.\n- Pressure Sensitive Adhesive— For reflective tape for vehicles\nCan be divided into PET, Acrylic, PC, PVC, PET+ PMMA and PET+ PVC, TPU.\n- Hot Press— For reflective heat transfer vinyl\nThere are two types: PES (no elasticity, such as D001, D001D, D001-K, etc) and TPU (good elasticity, such as D001-P, D001-H, D001-H-GS, D001-PD, etc).\nThe following is the pressing method: High-frequency pressing, flat pressing, and roller pressing are the different pressing methods available.","domain":"optical_engineering"}
{"url":"https://convex-mirror-price.com/product-tag/convex-mirror-price-in-bangladesh/","date":"2023-09-30T13:20:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510676.40/warc/CC-MAIN-20230930113949-20230930143949-00194.warc.gz","language_score":0.857415497303009,"token_count":552,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__185126953","lang":"en","text":"(1)Mirror materials is PC,Base materials is ABS.\n(2)Suitable for convenient shop, and big supermarket, the turning of the road, factory, parking lot and any other corner where need anti-thief.\n(3)Not easy to consume, anti-ultraviolet radiation, can use for a long time.\n(4)Firm, long time using and anti-crash.\n(5)Clear and definite mirror image, easy and convenient installation.\n(6)Weight of the mirror is light, it can be safely used.\nBest Sell 60CM High Visible And High Definition Wide Angle Unbreakable Corner Convex Mirror For Roadway Use\nconvex mirror is an essential safety device for roadway use. This type of mirror is designed to provide drivers with an unobstructed view of any potential hazards, blind spots, or other obstacles that may be present at intersections or other high-risk areas.\n- Made By High-Quality Material\n- Different Sizes\n- With Installation Accessories\n- 130 Degree Viewing Angle\n- Wide Angle Covered\n- Cap/Hood System\n- Convex Garage Side Curved Safety mirror on entry and exit\n- PC Wide angle\n- Road Security Garage Side convex Curved mirror\n- 130 Degree viewing angle\n- PMMA convex Parking Lot mirror with cap\n- Excellent visibility\n1:Convex detection mirrors are easy to install – they are mounted simply and easily with the brackets provided in the container.\n2:Including heavy duty mounting brackets which permit easy installation in most locations.\n3:The mirrors are equipped with a patented swivel assembly and are adjustable to most any position or angle.\n4:Wide angle vision permits you to see around blind corners, over center aisle gondolas, and into hidden corners. Discourage\nshoplifters who need privacy before they risk a theft.\n5:Considered the greatest psychological deterrent by detective agencies, and endorsed by leading chain and department stores.\n1,Suitable for convenient shop, and big supermarket, the turning of the road, factory , parking lot and any other corner where need anti-thief.\n2,Not easy to consume, anti-ultraviolet radiation, can use for a long time.\n3,Firm, long time using and anti-crash.\n4,Clear mirror image.\n5,Weight of the mirror is light and can be safely used.\n6,Use soft cloth with warm water to clean.\n7,Mirror material: Imported PC or acrylic; Mirror back material: ABS.","domain":"optical_engineering"}
{"url":"http://www.wiseledlighting.com/index.php/Content/Pagedis/lists/id/181/catid/101/hcatid/181.html","date":"2020-07-13T04:46:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657142589.93/warc/CC-MAIN-20200713033803-20200713063803-00005.warc.gz","language_score":0.9062703251838684,"token_count":132,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__77299336","lang":"en","text":"Hong Kong Techled is a professional manufacturer and exporter that is concerned with the design, development, production, sales and service of the high-end LED commercial lighting products. Hong Kong Techled cooperates with lighting consultants from Europe with 20 year’s rich experience and famous product designers. By combining the idea from Europe and high-efficient production in China, the LED lighting products from TECHLED give expression to specialized, professional and competitive advantages.\nHong kong Techled Optoelectronics Co., Ltd.\nCopyright © Hong kong Techled Optoelectronics Co., Ltd. All Rights Reserved |Sitemap | Powered by","domain":"optical_engineering"}
{"url":"https://tales.dk/handbook-of-solid-state-lasers-materials-systems-and-applications_b-denker_9780857097507","date":"2022-07-03T02:59:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104209449.64/warc/CC-MAIN-20220703013155-20220703043155-00438.warc.gz","language_score":0.8158641457557678,"token_count":486,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__22268005","lang":"en","text":"Gør som tusindvis af andre bogelskere\nTilmeld dig nyhedsbrevet og få gode tilbud og inspiration til din næste læsning.Ved tilmelding accepterer du vores persondatapolitik.\nDu kan altid afmelde dig igen.\n- Materials, Systems and Applications\nSolid-state lasers which offer multiple desirable qualities, including enhanced reliability, robustness, efficiency and wavelength diversity, are absolutely indispensable for many applications. The Handbook of solid-state lasers reviews the key materials, processes and applications of solid-state lasers across a wide range of fields.Part one begins by reviewing solid-state laser materials. Fluoride laser crystals, oxide laser ceramics, crystals and fluoride laser ceramics doped by rare earth and transition metal ions are discussed alongside neodymium, erbium and ytterbium laser glasses, and nonlinear crystals for solid-state lasers. Part two then goes on to explore solid-state laser systems and their applications, beginning with a discussion of the principles, powering and operation regimes for solid-state lasers. The use of neodymium-doped materials is considered, followed by system sizing issues with diode-pumped quasi-three level materials, erbium glass lasers, and microchip, fiber, Raman and cryogenic lasers. Laser mid-infrared systems, laser induced breakdown spectroscope and the clinical applications of surgical solid-state lasers are also explored. The use of solid-state lasers in defense programs is then reviewed, before the book concludes by presenting some environmental applications of solid-state lasers.With its distinguished editors and international team of expert contributors, the Handbook of solid-state lasers is an authoritative guide for all those involved in the design and application of this technology, including laser and materials scientists and engineers, medical and military professionals, environmental researchers, and academics working in this field.Reviews the materials used in solid-state lasersExplores the principles of solid-state laser systems and their applicationsConsiders defence and environmental applicationsVis mere\n© 2022 Tales.dk Vermundsgade 19, 1. sal | 2100 København Ø | Danmark | CVR: DK35408703","domain":"optical_engineering"}
{"url":"https://couponmarathon.com/coupon-site/payneglasses.com","date":"2020-01-28T12:05:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251778168.77/warc/CC-MAIN-20200128091916-20200128121916-00319.warc.gz","language_score":0.8238843679428101,"token_count":135,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__37798919","lang":"en","text":"Eyeglasses - Glasses Online - Prescription Glasses | Payne\nBuy a new pair of prescription glasses at Payne Glasses. Shop high quality yet affordable eyeglasses & sunglasses crafted with your prescription. Buy Online!\nActived: Friday Jan 24, 2020\n1.74 High Index Lenses | Thin Prescription Lenses for\nWho Needs 1.74 Lenses? It’s not only the strength of the prescription that determines who benefits from 1.74 high index lenses. It is the combination of an individual’s prescription, pupillary distance, frame, and lifestyle needs that determines how beneficial 1.74 lenses are for that individual.","domain":"optical_engineering"}
{"url":"http://kknl.kupena.ru/72-f538ca07873f9","date":"2021-07-25T06:42:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151638.93/warc/CC-MAIN-20210725045638-20210725075638-00299.warc.gz","language_score":0.6699202656745911,"token_count":2981,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__258283140","lang":"en","text":"Custom ov camera sensor elitepad 900 driver designed and manufactured by the Raspberry ov camera sensor elitepad 900 driver Pi Foundation in the UK, the Raspberry Pi Camera. Pixels: 5 megapixel; Resolution: 2592x1944 ; Auto focusing by detecting the object distance; Onboard flash LED, ov camera sensor elitepad 900 driver allowed to take pictures in the dark; Sensor: OV5640 1. Reply 1 year ago Reply Upvote. Wide Dynamic Range (WDR) allows you to.\n3 launch mode 3 - quick auto launch 2-26 2. Copy link Tuxman2 commented. It is not a good news. Advent Calendar Discover THX RAZER x A BATHING. OV has more pins not just 4 pins. Fixed Focus Cameras.\nFrom RidgeRun Developer Connection. &0183;&32;The HP ElitePad 900 might seem a bit familiar — it's the mystery device that snuck its way into ov camera sensor elitepad 900 driver a few HP commercials over the last few months. &0183;&32;Check out RidgeRun's comprehensive overview and features of the Omnivision OV5647 Linux 900 driver for Jetson Nano. PRODUCTS CMOS 900 Image Sensor. No news about the support of OV and HM cameras ov camera sensor elitepad 900 driver on Linux? &0183;&32;Image-Based Laser Sensor. The image’s black level is either calibrated automatically or can be adjusted by adding a user ov camera sensor elitepad 900 driver programmable offset. Die Einstellung fokussiert sich automatisch auf Ihr ov camera sensor elitepad 900 driver Gesicht.\n79) Decem Arducam has updated Jetvariety, the project to increase ov camera sensor elitepad 900 driver ov camera sensor elitepad 900 driver MIPI Cameras for Jetson Nano and Xavier NX, to support NVIDIA Argus API Decem; Software-Controlled Focus on 12MP IMX477 High Quality Camera: Keyboard Focus Control or Even Autofocus Novem. 6MM Lens ELP-USB100W04H-L36 - H264 HD 720P USB Camera Module USB2. Bare Die(COB) Bare Die(COB. If using options 1 to 4, do pay attention to ov camera sensor elitepad 900 driver properly specify Aspect Ratio. This product has an image array.\n6MM Lens Main Specifications Model ELP-USB100W04H-L36 Sensor OV9712 Lens Size 1/4 inch Pixel Size 3. &0183;&32;Seen here in its dock, the ElitePad 1000 G2 is fairly thin for a Windows 8. / drivers / media / platform / msm / camera_v2 / sensor / ov5648. 12 launch 2-25 2. 5 group ov camera sensor elitepad 900 driver write 2-24 2. Insert the included 8GB Micro SD card into the Micro SD to SD Adaptor. 8: Aug: Device Driver. Teledyne Lumenera’s USB 3.\nELP USB Cameras are available in CMOS OV sensor types making them suitable across a larger range of applications. When you specify a different format (like 16:9 video) on your 3:2 or 4:3 camera sensor, this changes the effective sensor size from the format's original native value, and cnanges the Field of View too of course. The Teledyne Lumenera LtX45R camera series combines USB 3. Available sensors include SONY IMX290, IMX327, IMX298 ov camera sensor elitepad 900 driver etc. USB Cameras contain out-of-the-box functionality for quick setup. This assumes the camera sensor processes the raw data from. Jetzt die EOS 90D vor Ort in Aktion erleben. The tablet 900 will also be available with 64GB storage, ov camera sensor elitepad 900 driver and both models will.\nIt provides full-frame, sub-sampled or windowed 8-bit images in various formats, controlled through the Serial ov camera sensor elitepad 900 driver Camera Control Bus (SCCB) interface. Sony SLT-A58: Lernen Sie mehr &252;ber technische Daten & ob sich diese Kameras mit Wechselobjektiv auf Ihre Bed&252;rfnisse ausrichten. The file extension should be. The ElitePad 900 tablet originally started at 9 for a unit with 32GB of storage, but HP is now reconsidering the price. Be it distance measurement, driver assistance system, or robot vacuum cleaner: Modern technology virtually cannot be imagined without optical detectors.\nOmniVision OV5647 Linux driver for Jetson Nano. maybe you are right, maybe the platform has both. It still uses the same Sony E mount as the A7, too, so you can use all. elitepad .\nReply 7 months ago Reply Upvote. 4 SCCB timing 2-23 2. Razer Hammerhead True Wireless Pro Razer Case for Hammerhead True Wireless Pro Razer Tomahawk Gaming Desktop Razer Recon 15 Rolltop Backpack Razer Folded Cloth Mask Razer Wolverine V2 Laptop Sleeves Cyberpunk. 50 ELP High Speed ov camera sensor elitepad 900 driver 120fps PCB USB2. Gro&223;artig f&252;r die Momente, bei denen man mittendrin sein muss.\nLet's assume that we driver have a camera sensor transmitting 8 bits per pixel clock (PCLK). ELP No distortion USB Camera MJPEG 260fps 640X360/120fps 720P/60fps 1080P CMOS OV4689 ov camera sensor elitepad 900 driver Mini USB Camera . 1/10-inch 1/3-inch 1/4-inch 1/5-inch 1/6-inch 1/9-inch. 1 launch mode 1 - quick manual launch 2-25 2. A VSYNC would be fired by the sensor after the entire elitepad frame is transmitted i.\n4 launch mode 4. While applications such elitepad as AmScope and ov camera sensor elitepad 900 driver IS Listen have built-in camera support, the application's camera ov camera sensor elitepad 900 driver definitions may not be complete or up-to-date. . I will likely never be.\nLogitech Webcam Software for Windows 10 has. News & Events. 2-megapixels) operating at 30 frames per second (fps) for zero shutter lag and can seamlessly transition between recording video and capturing still images. Teledyne Lumenera LtX45R Camera Series. Our industrial cameras are designed to withstand demanding environments, shocks / vibration, and are 100% solid state, providing the consistency and reliability needed for applications such as machine vision systems, intelligent. Copy link Collaborator nicman23 commented. The OV7670/OV7171 CAMERACHIPTM is a low ov camera sensor elitepad 900 driver voltage CMOS image sensor that provides the full functionality of a single-chip VGA camera and image processor in a small footprint package. This means to transfer one pixel of ov camera sensor elitepad 900 driver data, 3 ov camera sensor elitepad 900 driver PCLKs would be required.\n4mm (excluding lens) Weight: 3g: 3g: Still resolution: 5 Megapixels: 8 Megapixels: 12. It's able to deliver a crystal clear 5MP resolution image, or 1080p ov camera sensor elitepad 900 driver HD video recording at 30fps! The Sony A6100 brings some of the best features from the A7 series into a camera that’s less than 0 (including a lens).\n1 Gen 1, USB 2, and GigE cameras with a 4-year ov camera sensor elitepad 900 driver warranty. 2 launch mode 2 - delay manual launch 2-26 2. Downloads Further information with a click of the mouse. That’s a common vendor mantra, but rarely are the improvements as. Additionally, the sensor supports 4K2K ultra-high definition video at 30 fps with full. Predictably, that effort comes up short, but the company has still managed to a land one-two combo of portability and quality few. 1 Omnivision OV5647 image sensor; 2 Enabling. ov camera sensor elitepad 900 driver I don't care for the front camera but I would like to use the rear camera.\n&0183;&32;Download Logitech Webcam Software for Windows 10 for Windows to capture photos and videos, upload to Facebook with one-click, adjust camera settings. SJCAM SJ4000 has a 12 mega pixel sensor for shooting crisp photos and recording amazing 1080P videos. Resoulution Pixel size Pixel type Optical fromat ov camera sensor elitepad 900 driver Package Product Status; 1.\n10 serial camera contro l bus (SCCB) interface 2-19 2. The HP driver ElitePad 900 attempts to be all things to all people. c Go to file Go to file T; Go to line L; Copy path Cannot retrieve contributors at.\nCamera Module Based on OV5640 Image Sensor, 5 Megapixel (2592x1944), Auto Focusing with Onboard Flash LED. While initiating pen activity, be sure not to touch the Features Unlike the more familiar “Passive” or “Off-the-Shelf Capacitive” stylus pens, The HP. after 1920x480, 921600 PCLKs. 0 MP (4K) Fixed focus - See3CAM_CU135 13. Die EOS 90D hat einen 32,5 MP elitepad APS-C-Sensor, der bei den Objektiven – im direkten Vergleich zu einer Kamera mit Vollformat-Sensor – f&252;r ov camera sensor elitepad 900 driver eine 1,6-fache Verl&228;ngerung der Brennweite sorgt. 2D/3D Laser Profiler. Camera Module v1 Camera Module v2 HQ ov camera sensor elitepad 900 driver Camera; Net price: : : : Size : Around 25 &215; 24 &215; 9 mm: 38 x 38 x 18.\nThe HSYNC would be fired by the sensor after every 640 x 3, 1920 PCLKs. Highly precise ov camera sensor elitepad 900 driver optical sensors manufactured in-house – elitepad the right solution for any application. 0um image area.\nMicrosoft Azure SQL-Datenbank. Sensor Services SeisomoGeodetic App SiteNet™ 450 SiteNet™ 900 Site Setup App SiteVision™ Office Sitework, Paydirt&174; SketchUp Pro SNR On-Machine Radios SNRX21 On-Machine Radios SNB9 radio for Agriculture SNB 900R radio for Agriculture SNM451 Connected Site Gateway SNM920 SNM940 Connected Site Gateway SNM941 Connected Site Gateway. elitepad Arducam Mini Shield OV5642. The Imaging Source authors and supports ov camera sensor elitepad 900 driver device drivers, software development kits (SDKs), programming samples, extensions, end user software ov camera sensor elitepad 900 driver and software tools for Microsoft Windows (below) and Linux.\ntaocamera aristarco. The pen can be used for selecting. Fully Operational with Expanded Resources: Learn more about how KEYENCE is continuing to fully support our customers throughout ov camera sensor elitepad 900 driver COVID. Selbst wenn ov camera sensor elitepad 900 driver Sie sich bei einer Videokonferenz bewegen, bleiben Sie. Refer to OmniVision Technologies Serial Camera Control Bus (SCCB) Specification for detailed usage of the serial control port. Choose from off-the-shelf board-level and enclosed cameras, or a custom solution.\n3 read / write operation 2-20 2. These CMOS (Complementary metal–oxide–semiconductor ) imaging sensors serve a elitepad broad range of applications and markets including machine vision, medical electronics, broadcast equipment, traffic management, scientific instrumentation and photography. The calculator can show this.\nAnother camera from Arducan comes ov camera sensor elitepad 900 driver with a high definition 5MB (1080p, 720p) camera and replaceable lens. Der hochempfindliche, qualitativ hochwertige CCD-Sensor gew&228;hrleistet nat&252;rlich wirkende Bilder auch bei Dunkelheit. Make it better and they will come. 1mm Lens ELP-USBFHD01M-L21. The sensor has on-chip programmable gain amplifiers and 10-bit A/D converters. experience fullhd. excelent i agree with you. 06-inch OV13850 supports an active array of 4224 x 3136 pixels (13.\nThe downloaded firmware file can be loaded onto your Dash Cam in two ways: Micro SD to SD Adaptor. 0 OV9712 Color Sensor with Digital audio ov camera sensor elitepad 900 driver 3. Microsoft ODBC Driver for SQL Server erm&246;glicht native Konnektivit&228;t zwischen Windows, Linux und macOS und Microsoft SQL Server bzw. Embedded camera module can be interfaced to processors like NXP IMX8 & NVIDIA Xavier, NX, Nano and so on. Sony imx298 cmos sensor module camera HD high speed camera module 1080p 16mp. Die hochmoderne Kamerasoftware erkennt Ihr Gesicht und folgt automatisch Ihren Bewegungen.\nELP USB Cameras range from 640X480 USB camera and USB camera module, 720P USB camera, 1080P USB camera 3megapixel USB camera, 5megapixel USB camera and also USB camera module. Emergent Temporary V4L2 Driver for the Lastest RPiUpdate (Kernel 5. Latest Version 1.","domain":"optical_engineering"}
{"url":"http://mblearningsystems.com/brockmagiscopes.htm","date":"2019-03-23T13:32:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202804.80/warc/CC-MAIN-20190323121241-20190323143241-00227.warc.gz","language_score":0.8707679510116577,"token_count":160,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__126370106","lang":"en","text":"Lowest price available. Over a decade in the field has earned the Magiscope a reputation for unsurpassed reliability, optical excellence, and the ease of use. Brock Magiscopes are easily used at all levels of education in the classroom or the outdoors. Standard room lighting is sufficient. All Magiscopes have a life time Unconditional Warranty including accidental breakage coverage.\n- One moving part and no exposed threads, levers, screws or mechanical adjustments\n- Ideal for all classrooms and outdoor studies.\n- The lumarod illumination system provides simultaneous reflection and transmitted light without adjustment or replacement of bulbs, batteries, mirrors or prisms.\nMultiple magnification (20X, 50X, 100X, 200X, 400X) available by changing eyepieces and objectives.","domain":"optical_engineering"}
{"url":"https://grandviewresearchinc.blogspot.com/2015/12/3d-display-market-trends-share-size.html","date":"2018-01-20T20:44:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889733.57/warc/CC-MAIN-20180120201828-20180120221828-00266.warc.gz","language_score":0.9427305459976196,"token_count":510,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__113293133","lang":"en","text":"The global 3D display market is expected to exceed USD 100 Billion by 2022. The industry is currently in its nascent stage and is expected to witness considerable growth owing over the forecast period owing to its widespread usage in advertisement industry. Growing trend towards the use of intuitive 3D technology in high turnover sectors such as consumer electronics is also anticipated to spur demand over the next few years.\n3D display is capable of conveying a stereoscopic perception of 3D depth to the viewers. Increasing demand for this technology in entertainment sector for enhancing customer viewing experience is expected to drive industry growth over the coming years. Growing demand across military and defense sector for simulating tactics and training purpose may also increase demand over the forecast period. Technically advanced products such as oculus rift have led to significant adoption of 3D technology particularly in the gaming sector, which also took the gaming industry to the next level.\nHigh product cost and lack of availability of 3D content are expected to hinder market demand. Lack of interoperability in supply chain may further pose challenge to industry growth over the forecast period. For instance, different platforms used by content owner, flat panel manufacturer and broadcaster may result in higher time to market. However, increasing adoption of 3D display in smartphone and TVs are expected to catapult industry demand over the next seven years.\nThe market is categorized into several product types including volumetric, stereoscopic and head mounted displays. Stereoscopic display is expected to be the dominant segment owing to its high usage in television, laptop, tablet and smartphones. Head mounted display is estimated to witness significant growth attributing to its increasing usage in automotive and gaming sector. On the basis of technology, the market is further segmented into Liquid Emitting Diode (LED), Organic Light Emitting Diode (OLED), Digital Light Processing (DLP) and Plasma Display Panel (PDP). LED based 3D displays are anticipated to dominate the market owing to LED technology proliferation in recent years. However, OLED based product is expected to exhibit high growth attributing to its environment benefits and human friendly design.\nThese displays are used in several end-use applications including consumer electronics, retail, entertainment, advertising, medical, gaming & entertainment, automotive and military & defense. Consumer electronics is anticipated to be the prevailing sector over the next seven years owing to increasing demand for stereoscopic display in televisions and other consumer electronics. Advertising segment is estimated to witness significant growth over the coming years. This may be attributed to increasing demand for 3D display for digital signage purpose.","domain":"optical_engineering"}
{"url":"https://www.mi-eq.com/solutions/series/vi-series/","date":"2021-04-17T03:22:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038098638.52/warc/CC-MAIN-20210417011815-20210417041815-00379.warc.gz","language_score":0.8181416392326355,"token_count":98,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__246257485","lang":"en","text":"Vi20 is an infrared inspection system that is designed for inspecting internal structures and defects on wafer-level , flip chip and post grind package. It provides infrared inspection solutions to detect metal layer delamination, chips and cracks. Available in strip/boat format, reel format and wafer format.\nBelow are the key features of Vi20:\n- Provides throughput up to 20,000 UPH\n- Ability to handle die size of 0.4 × 0.2 mm or larger","domain":"optical_engineering"}
{"url":"https://www.webshop-innovatek.de/en/coolant-additives/accessories/506/refractometer-for-testing-coolants","date":"2022-08-17T04:06:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572833.95/warc/CC-MAIN-20220817032054-20220817062054-00391.warc.gz","language_score":0.8316596746444702,"token_count":286,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__130443392","lang":"en","text":"With the help of this high-quality refractometer you can test the concentration of the cooling liquid used in your cooling circuit. For this purpose, the refractive index of the transparent liquid is determined by refractometry. The refractometer we offer is specially designed for testing cooling liquids.\nUsing the refractometer is very easy: Open the cover, put a few drops of the cooling liquid to be tested on the prism surface and then hold the refractometer towards a light source. Now you can read off the so-called Brix value, which indicates the concentration in percent.\nIn the instructions also provided by us, you will find all the information you need to use and classify the values determined.\n- Easy to use\n- High material quality and measurement accuracy\n- Ideal for quick and exact determination of the concentration of the coolant\n- Safe protection in a high-quality hard case\n- SG value scale and automatic temperature compensation (ATC)\n- Scale for the coolants Protect IP, Protect PRO, Protect N and Protect R (ethylene glycol and propylene glycol scale)\n|Measuring range (°C):||0 °C bis -60 °C|\n|Measuring range (sg):||1.100 sg bis 1.400 sg|","domain":"optical_engineering"}
{"url":"https://rbtx.com/en/use-cases/commonplace","date":"2021-12-06T16:53:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363309.86/warc/CC-MAIN-20211206163944-20211206193944-00380.warc.gz","language_score":0.8884217739105225,"token_count":148,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__161195302","lang":"en","text":"Robot Cell - Bin PickingCommonplace Robotics GmbH\nCommonplace robotics shows how to combine a low cost robot with a 3D vision system at an affordable price.\nWith this robot cell commonplace robotics shows how to combine a low cost robot with a 3D vision system from ifm at an affordable price.\nThe robot is able to pick randomly sorted boxes out of a bin and hands them over on any transfer station the customer installs. The robot controller from commonplace robotics integrates an interactive robot programming environment with integrated simulation, motion planning and the camera interface.\nTo meet the safety in modern production environments the cell comes with all important safety features to make your certification as easy as possible. The cell will be delivered fully assembled.","domain":"optical_engineering"}
{"url":"https://www.ifai.com/2010/09/01/display-panels/","date":"2021-12-09T07:08:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363689.56/warc/CC-MAIN-20211209061259-20211209091259-00587.warc.gz","language_score":0.9112786650657654,"token_count":123,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__70421038","lang":"en","text":"The domestically manufactured Vantage® narrow-profile LED backlit display is one of the brightest LED backlit displays on the market. Not only does the display offer the traditional benefits of energy efficiency and increased life expectancy of typical LED backlit displays, but it features a unit that rivals traditional fluorescent backlit displays in brightness.\nClearr also introduced the PlaneLight™ panel that consists of a proprietary light-guide panel, edgelit with color-correct LEDs. The panel has the same benefits of the Vantage, but it can easily incorporate into custom displays. It is available both in standard and curved configurations.","domain":"optical_engineering"}
{"url":"http://cplighting.net/uae-led-market-expands-by-2022/","date":"2022-05-20T13:44:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662532032.9/warc/CC-MAIN-20220520124557-20220520154557-00564.warc.gz","language_score":0.9499097466468811,"token_count":484,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__128176795","lang":"en","text":"UAE LED Market Expands by 2022\nLight-emitting diode, LED lights, are the most efficient lighting items nowadays since LED can last up to 25 times longer than incandescent lamps, and they are more efficient than other lighting items, such as fluorescent lamps. In addition to that, LEDs do not Produce UV Emissions and they are environmentally safe.\nBecause of these advantages and more, LEDs are widely used in UAE and they are the suitable replacement of other lighting fixtures. So UAE LED market will expand by 2022. It is worth mentioning that UAE LED market in the last two years has grown at a CAGR of more than 18% during.\nSo what are the reasons behind the expanding of UAE LED market by 2022?\n1. Banning selling inefficient light bulbs:\nBefore 4 years in 2014, the government forbade selling inefficient light bulbs and stated some regulations helping the market to grow, such as expanding the use of energy-efficient lighting products as LEDs. That means the government called for reducing energy subsidies and increasing the use of LED lighting.\n2. The increasing of investments in infrastructural developments:\nThere is a huge increase of investments for infrastructural developments in different fields, such as: retail, industrial and commercial ones. These new investments and developments will use LED lights in their plan because of the government’s support of the LED lights market in UAE.\n3. New LED lighting innovations:\nThe Abu Dhabi National Exhibition Centre is considered the place of innovations. In the conference, a lot of old and new brands showcased their latest LED lighting innovations and that indicates that LED technology is going to have its boom time in the upcoming years.\n4. Upcoming events in the region:\nThe Expo in Dubai in 2020 and the Fifa World Cup in Qatar in 2022 will be great reasons to expand the market since these events need a lot of lights and lighting technologies and LEDs are the best nowadays for its advantages.\n5. Suitable for the hot climate:\nLEDs do not produce too much heat so they suit UAE hot climate.\nThe UAE LED lighting market includes all life sectors: commercial, residential, industrial and others and they are used in covering panel lights, downlight, street lights, outdoor lights, etc. people in the past did not trust LEDs, yet now they do a lot.","domain":"optical_engineering"}
{"url":"http://oilalarm.oilinwater.org/product/oil-in-water-alarms/oil-in-water-alarm-ba-200","date":"2020-01-20T00:26:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250595787.7/warc/CC-MAIN-20200119234426-20200120022426-00014.warc.gz","language_score":0.9407970309257507,"token_count":219,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__99893722","lang":"en","text":"The OilArm uses a much-tested electro-optical sensing system to measure the concentration of oil in water. A 3ml sample is drawn by a piston into a small glass chamber. A tiny light source shines through one wall of the chamber to two photodetectors on the other side. Any oil suspended in the sample absorbs light. The decrease in light transmission is measured by one photodetector, and the forward scattered light preferentially induced by oil is measured by the other photodetector, which is shielded from directly viewing the light source by an occluding rod. An electronic circuit algebraically combines the intensity on the two photodetectors to yield a measure of the concentration of oil. The dual approach minimizes interference from suspended solids or air bubbles. Water temperature and oil composition do not affect the reading.\nInstallation is easy and inexpensive. The sampling end of the sensor is inserted 6 to 12 mm into the stream to be sampled. The sensor is held in place by a 150lb Navy or optional ANSI 4-hole flange.","domain":"optical_engineering"}
{"url":"https://dive180.com/blog/2014/2/12/sigma-dp-quattro-series","date":"2019-06-20T05:52:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999141.54/warc/CC-MAIN-20190620044948-20190620070948-00154.warc.gz","language_score":0.9242278337478638,"token_count":352,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__117186456","lang":"en","text":"SIGMA dp Quattro Series\nSigma corporation from Japan has announced their newest generation of compact cameras featuring the sigma DP series. The sigma dp series is a high quality compact camera – with 29 megapixel CMOS foveon X3 direct image sensor. The sensor uses vertical color separation technology.\nSigma DP quattro is set to launch in March, and the cost of it is still being determined.\nTake note that the camera underwent a full makeover, from its sensor, engine, lens, and the body. The quattro dp2 is wide and has a 3.0 inch LCD screen with a maximum resolution of 7,680 x 4,320.\nAs far as focal length goes, the camera has different focal lengths to suite your need. It has the wide-angle (dp1) at 19mm, the standard angle (dp2) at 30mm, and the medium telephoto (dp3) at 50mm.\nIn addition, this camera comprises of three photodiodes layers, and each layer measures light at a different depth within the silicon. Each one also corresponds to a different RGB color. All in all, these technologies combined result in a superb full-bodied 3D feel.\nBelow are some more specs:\nsensor size: 23.5×15.7mm\nsensor type: CMOS processor: foveon X3 direct image sensor (CMOS)\nshutter speed: 1/2000 sec – 30 sec\nweight: 395 g without battery and memory card dimensions: 161 x 67 x 81.6 mm\nIs this something to watch out for? We'd say, absolutely. It is a compact quality.","domain":"optical_engineering"}
{"url":"http://mastery-ebooks.clwave.com/2015/03/09/quantum-perfect-vision-system-restore-2020-eye-vision-naturally/","date":"2018-02-21T13:29:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813622.87/warc/CC-MAIN-20180221123439-20180221143439-00170.warc.gz","language_score":0.829813539981842,"token_count":108,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__9382999","lang":"en","text":"Quantum Perfect Vision System – Restore 20/20 Eye Vision Naturally!\nRestore Your 20/20 Eyesight Vision Again, Very Quickly and Naturally!\n*** One Natural Exercise Method That Will Force Your Eyes Into the Perfect 20/20 Vision Naturally!\n- Get perfect 20/20 vision, no matter how strong your prescription is…in just 7 days!\n- Save thousands on prescription glasses, contacts and doctor visits!\n- Restore the vision you had as a child, completely naturally, in the comfort of your home!","domain":"optical_engineering"}
{"url":"https://project.lsst.org/","date":"2024-04-14T11:58:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00740.warc.gz","language_score":0.9168102741241455,"token_count":332,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__112944342","lang":"en","text":"SLAC National Accelerator Laboratory celebrates the completion of the largest camera ever built for astronomy and astrophysics\nVera C. Rubin Observatory is excited to announce that the team at SLAC National Accelerator Laboratory has finished building the 3200-megapixel LSST Camera, which will soon be shipped to Chile and mounted on the telescope inside Rubin Observatory. This camera is the largest ever built for astronomy and astrophysics, and it took two decades of work to complete. The LSST camera is the size of a small car, and it will take images so large that you’d need hundreds of ultra-high-definition TVs — or about 1200 iPhone screens — to view just one at full size!\nThe LSST Camera will be mounted at the center of the Simonyi Survey Telescope inside Rubin Observatory, and it will take enormous images of the southern hemisphere night sky, over and over again for 10 years. Scientists will use the data from these images to learn more about dark matter and dark energy, the Milky Way, our Solar System, and things that move or change in the night sky.\nNow that the camera is complete, the team at SLAC will carefully pack it in a custom shipping container and send it to Chile, where the camera will be driven (very carefully!) to the summit of Cerro Pachón. After testing in a special clean room inside the Observatory, the camera will be installed on the telescope later this year.\nYou can read more details about this amazing camera in the official press release from SLAC, which also contains links to photos and video. Congratulations to our team at SLAC on this historic achievement!","domain":"optical_engineering"}
{"url":"https://kopavguldieor.web.app/28234/3095.html","date":"2022-10-01T20:19:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030336921.76/warc/CC-MAIN-20221001195125-20221001225125-00318.warc.gz","language_score":0.8042622208595276,"token_count":1281,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__175917317","lang":"en","text":"Contribution of Brown Carbon to Direct Radiative Forcing over\nWe propose a depth estimation method for underwater scenes based on image blurriness and light absorption, which can be used Light Absorption in Solar Cells The Setfos absorption module uses the transfer matrix formalism for the fast calculation of the photon flux across a solar cell. Arbitrary sequences of coherent and incoherent layers can be considered in the device stack and their total effect on the solar cell absorption … Omnidirectional, Broadband Light Absorption in a Hierarchical Nanoturf Membrane for an Advanced Solar‐Vapor Generator. Jong Uk Kim. School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419 Republic of Korea. Search for more papers by this author. Seung Ji Kang. So the selective absorption of light by a particular material occurs because the selected frequency of the light wave matches the frequency at which electrons in the atoms of that material vibrate.\n- Istar com\n- Begära lön ekonomiassistent\n- Saxlift 6 meter\n- Svt fiskare vänern\n- Gbc email\n- Transportstyrelsen handledare körkort\n- Handelshuset hette\n- Terminal hvor lang tid\n- Matematik problemlosning\nfr absorption de la lumière f. de Lichtabsorption f. da lysabsorption. no lysabsorpsjon. fi valonimeytyminen.\nLight absorption is a special case of the more general physical phenomenon of absorption. When electromagnetic radiation is absorbed, an electron of an atom goes from a lower energy … Light absorption is the process in which light is absorbed and converted into energy When electrons absorb energy, they become ‘excited’ and move to higher … 2015-12-07 The absorptance, which is the fraction of the incident laser light which is absorbed, depends on a number of different parameters.\nMichael Stührenberg - Google Scholar\nThe absorption in the gas phase occurs in three regions of the spectrum. Rotational transitions are responsible for absorption in the microwave and far-infrared, vibrational transitions in the mid-infrared and near-infrared.\nDC Comics Metal Poster Batman Light Absorption Hjärta av\nLight absorption occurs if the photon energy matches the energy gap between the ground excited states. The photon, in effect, induces a transition between the ground and excited states with the loss of a photon from the radiation field and the production of an excited state. However, the … Light Absorption and Energy Transfer in the Antenna Complexes of Photosynthetic Organisms. Tihana Mirkovic †, Evgeny E. Ostroumov ‡, Jessica M. Anna §, Rienk van Grondelle ∥, … Evidently, aerosol light absorption was predominantly due to BC; however, BrC also played a significant role, especially at shorter wavelengths. Table 2 shows the intercomparison of BrC light absorption in the near UV range between this work and other studies in the East Asian region. 2017-01-23 2020-12-22 Absorption of light by photoreceptors o The photochemical reactions occurred in the photoreceptors by the absorption of light forms the basis of the visual system 37. Light Filters o Material used to absorb or transmit light of all wavelength equally i.e.\nI akustik innebär absorption\n118 - Light Absorption, Reflection, and TransmissionIn this video Paul Andersen explains how light can be absorbed, reflected, or transmitted as it moves fro\nLight Absorption Chain Polymerization II. Light absorption by the photoinitiator requires that an emission line from the light source Calcium in Living Cells. Joseph P.Y. Kao, Darryl A. Auston, in Methods in Cell Biology, 2010 By convention, ε has Basics of Fluorescence and FRET.\nIn figure b, the traces of the measured raw opacity signal, and of the unfiltered and filtered light absorption coefficients (k-value) of the first load step of an Here, we combine source estimates constrained by dual-carbon-isotope with light absorption measurements of WS-BrC for a March 2011 campaign at the Korea Here, we combine source estimates constrained by dual carbon isotopes with light-absorption measurements of water-soluble organic carbon (WSOC) for a Impacts of Combustion Conditions and Photochemical Processing on the Light Absorption of Biomass Combustion Aerosol. Research output: Contribution to Impacts of Combustion Conditions and Photochemical Processing on the Light Absorption of Biomass Combustion Aerosol · Johan Martinsson · Axel Eriksson Light absorbing aerosol particles, in particular, can alter the vertical temperature structure of the atmosphere and inhibit the formation of convective clouds. Light absorption enhancement of black carbon in urban Beijing in summer.\ngreen (light). Fluorescein FITC. 495. 518 green (light).\nWest duo cash cup\nvårens läppstift 2021\naksel sandemose varulven\nAbsorbance, ABS420/5 Externwebben - SLU\nLight: Absorption, Reflection, and Refraction DRAFT 4th grade Underwater images often suffer from color distortion and low contrast, because light is scattered and absorbed when traveling through water. Such images with different color tones can be shot in various lighting conditions, making restoration and enhancement difficult.\nvad betyder lumpen\nScattering And Absorption of Light in Planetary - Forskning.fi\nThat means that you need to know the … Light Absorption in Solar Cells The Setfos absorption module uses the transfer matrix formalism for the fast calculation of the photon flux across a solar cell.","domain":"optical_engineering"}
{"url":"https://www.motorspeedopticaldetection.com/","date":"2019-10-17T16:01:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986675409.61/warc/CC-MAIN-20191017145741-20191017173241-00294.warc.gz","language_score":0.9282207489013672,"token_count":332,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__219137204","lang":"en","text":"Zinformatica developed ZEye Grid in 2017. ZEye Grid is a solution that combines vision and optical system for the detection speed and engine construction compliance. It’s based on own product Vision inspection system.\nZEye Grid is a solution based on an optical system capable of displaying the revolutions of the engine compartments through the holes of the grid and is also capable to verify the engine quality.\nZEye Grid is an innovative solution. The only one of its kind created in the world for technology and reliability.\nThe ZEye Grid solution solves a long-standing problem for manufacturers and testers of electric motors: knowing the speed and engine construction compliance.\nManual motor assembly phase control\nZeyegrid is used to check the progress of production at each manual assembly site and to suggest the operator the next steps or errors in real time.\nFinished motor quality control\nImagine having a series of engines and having to supervise the conformity of the production, detect the defects and manage the warehouse in the fastest and most efficient way possible; ZEye Grid is the solution for you!\nCalculate the speed of the engine without contact\nZEye Grid simplifies data display even on big engines where contact is not possible. ZEye Grid has optical system capable of displaying the revolutions of the engine compartments through the holes of the grid and is also capable to verify the engine quality.\nIt is also useful during final testing as the test bench is not polluted.\nUse of solid and reliable technologies.\nContinuous research and technological innovation.\nMeeting the customer’s needs is the no. 1 priority.","domain":"optical_engineering"}
{"url":"https://www.atemitech.com/en/technology/","date":"2023-03-27T20:57:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948684.19/warc/CC-MAIN-20230327185741-20230327215741-00668.warc.gz","language_score":0.8876721262931824,"token_count":650,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__281253356","lang":"en","text":"Integrated solutions for optical bonding and touch control technology\nHeavy-duty displays require more robust design and functionality than ordinary consumer or commercial screens because of the harsher environment. With its advanced optical bonding technology, Atemitech is able to create tailored solutions, cleverly integrating different touch technologies, specialty coatings, screen surface strengthening and designated displays to operate perfectly in tough usage scenarios.\nLumiBond® 2.0 Exclusive technology\nAtemitech's revolutionary LumiBond® 2.0 technology offers various types of robust touchscreen functionality through unique designs and engineering.\nThe technical advantages of Lumibond® 2.0 include:\n- Strong screen readability\n- Functioning in rain, responsive to glove touch\n- Sturdy and moisture-resistant\nStrong screen readability\nLumiBond® 2.0 provides excellent picture quality, not only with high brightness and high contrast, but also thanks to saturated colors. Two unique design elements form the basis of this. First, low-power, high-brightness backlight module technology make the FHD LCD display screen brightness up to 1500 nits (cd/m2), which overcomes outdoor glare from sunlight. Second, the air gap between the display panel and touchscreen is eliminated through direct optical bonding, which minimizes the internal reflection of the image generated by the backlight, so that more internally generated light can be emitted with less light interference (i.e. visual interference). This also creates a wider viewing angle. The core of our Sunlight Readable Technology is to control the ratio of the brightness of the display to the reflected light on its surface within a 2.5 to 1 ratio to create superior readability.\nFunctioning in rain, responsive to glove touch\nWater has conductive properties. In cold surroundings, when moist air contacts the cold glass of the screen, droplets form that have the same effect as fingertips touching the screen, misinterpreted as commands. Lumibond® 2.0 has two ways to solve this problem. First, it can change the screen’s touch sensitivity in a moist environment, thereby reducing false inputs/alarms. In technical terms, the touch sensitivity can be switched from mutual-capacitance mode to self-capacitance mode. This mode switch can also be used to increase the touch sensitivity, allowing users to operate the screen even with gloves on. Second, eliminating the air gap between the display panel and touch layer keeps the touch layer warmer, which minimizes the formation of droplets that can be misinterpreted as fingertip commands.\nSturdy and moisture-resistant\nThe LumiBond® 2.0 design involves a transparent resin layer in between the LCD display panel and the touchscreen, thereby eliminating the air gap. The LumiBond® 2.0 is the only such heavy-duty touchscreen on the market and it offers various benefits: It not only eliminates the condensation of water between the display panel and the touchscreen, but also increases the strength of the entire screen, so that it can withstand greater impacts from vibration, pressure, shock, vibration and falling. It can operate in extreme temperatures from -30°C to 50°C or even higher.","domain":"optical_engineering"}
{"url":"https://www.firemiddleeastmag.com/teledyne-flir-introduces-premium-e8-pro-edition-for-point-and-shoot-thermography-inspection/","date":"2024-02-27T11:12:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474674.35/warc/CC-MAIN-20240227085429-20240227115429-00686.warc.gz","language_score":0.8670064806938171,"token_count":397,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__126753169","lang":"en","text":"05 Jul Teledyne FLIR Introduces Premium E8 Pro Edition\nTeledyne FLIR, part of Teledyne Technologies Incorporated, today announced the FLIR E8 Pro, providing a larger 3.5-inch touchscreen with FLIR Ignite Cloud connectivity within the same pistol-grip form factor as legacy E8 series thermal cameras. Through the touchscreen, users can share captured images with colleagues, partners, and clients over Wi-Fi, including on-screen annotations to highlight findings.\nImages can then be loaded straight to the FLIR Ignite Cloud for improved efficiency and a smoother workflow.\n“As part of effective predictive maintenance and condition monitoring programs, thermography inspectors require easy-to-use and cloud-connected handheld thermal cameras to quickly locate issues and effortlessly share that data with colleagues and clients for further analysis,”\n“The FLIR E8 Pro answers the call with a larger touchscreen and improved resolution. It also features FLIR Ignite cloud connectivity for instant documentation to provide inspectors with a familiar, yet superior, handheld thermal imaging camera to get the job done quickly and efficiently,” commented Rob Milner, global business development director, Teledyne FLIR.\nThe FLIR E8 Pro offers crisp thermal vision, particularly relevant in the fast-moving fire and safety market, all presented with the FLIR patented Multi-Spectral Dynamic Imaging capability. The tool also includes a built-in LED lamp to capture critical details even in low-light scenarios. When connected to Wi-Fi the FLIR E8 Pro can sync footage captured to the FLIR ignite application.\nThe FLIR E8 Pro is available today to buy globally from Teledyne FLIR and its authorized dealers. The purchase also includes two removable and rechargeable batteries, a hard-carrying case, a battery charger, a USB cable power supply, and printed documentation. Find out more from the FLIR E8 Pro site.","domain":"optical_engineering"}
{"url":"https://www.travelyukon.com/fr/node/12252","date":"2024-04-25T01:39:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00177.warc.gz","language_score":0.9283784031867981,"token_count":263,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__75734259","lang":"en","text":"The northern lights are one of the most astonishing sights that can be viewed on this planet. That is, unless you’re one of the 1.6 million Canadians who have a colour vision deficiency. While people with typical colour vision see over one million colours, people who experience colourblindness only see an estimated 10% of hues and shades. So we partnered with EnChroma, a leading producer of glasses for colourblindness and low vision, to make the show stopping northern lights more accessible than ever before, and provide one Canadian with the chance to see this natural phenomenon in full colour for the first time.\nRussell sees colour in dull hues, especially red and green, which leaves him to interpret the beauty of the world through shapes and textures. In order to demonstrate the power of this new accessibility, we took Russell on a once-in-a-lifetime trip to experience the northern lights in their truest form, so more travellers can experience the different world that exists in the Yukon.\nEnchroma is an independent company that develops lens technology to improve the lives of people with colour vision deficiency (colourblindness). Their colourblind glasses are uniquely engineered to give those with colourblindness the ability to see a broader array of bright colour most of us take for granted.","domain":"optical_engineering"}
{"url":"https://www.is-bigfoot-real.com/thermal-imaging-cameras/","date":"2023-12-03T06:33:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100489.16/warc/CC-MAIN-20231203062445-20231203092445-00755.warc.gz","language_score":0.9496589303016663,"token_count":1138,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__145572620","lang":"en","text":"A Thermal Imaging Camera (often referred to as a TIC) is a kind of thermographic camera system employed in various circumstances, such as firefighting and ghost/bigfoot hunting in popular culture. By means of rendering infrared radiation as visible light, these types of cameras make it possible for firefighters to ascertain instances of high heat (body heat) throughout smoke, the dark or heat-permeable obstacles.\nThermal imaging digital cameras are generally hand-held, but can be helmet-mounted also. They are usually manufactured utilizing heat as well as water-resistant enclosures, and heavily ruggedized to withstand environmental dangers. TICS detect body heat, and they’re typically made use of in situations where individuals are trapped in which rescuers are unable to discover them.\nA thermal imaging camera system is made up of 5 elements: a powerful optic set-up, sensor, amplifier, signal processing, and also display screen. These five components interact with each other to render infrared radiation, for instance that radiated by heated physical objects or flames, into a visible light representation in real time.\nThe digital camera display screen displays infrared output differentials, so 2 items with similar temperature will appear to be the same “color” A large number of thermal imaging cameras makes use of grayscale to represent normal temperatures, but emphasize precariously hot surface areas in distinct coloration’s.\nCameras can be handheld as well as helmet-mounted. A hand-held camera will require one hand to situate as well as control, leaving just one totally free hand for other activities. The vast majority of thermal imaging cameras being used by firefighters and paranormal investigators tend to be hand-held units.\nConsidering the fact that thermal imaging cameras can “see” throughout darkness or smoke, they permit firefighters to easily discover the seat of a structure fire, or see the heat signature of visually obscured victims. They can be employed to look for victims outdoors on a cold night, identify smoldering fires within a wall structure or pick up on overheating electrical cabling. Thermal imaging cameras were credited with saving multiple lives per year through victim identification and removal from low visibility conditions as early as 1999.\nAdditionally to the capability to see through thick smoke, thermal imaging cameras are also able to observe substances associated with spontaneous, low-level combustion. The cameras are also considered to be especially helpful for combating fires in cellulose insulation as well as for determining that a property remains safe and secure to reenter after a fire has been put out.\nA limitation of these kinds of and other similar equipment has long been their inadequate depth perception (the operator has a difficult time judging how far off items are). This raises the likelihood that the user will trip over or run into obstacles, or have other distance-related problems. An additional limitation of infrared technologies is the fact that since substances at the same temperature are displayed as the exact same coloration, the display is not going to exhibit a number of particulars ordinarily viewable with regard to visible light.\n- Thermal imaging cameras are priced as low as $3,000 from companies such as Extech, FLIR and Fluke, making them an economical analysis and diagnostic tool for a number of occupations. This type of model is now being made use of by a multitude of professionals, needless to say for additional functionality there are increased costs consequently making the TIC considerably pricier.\n- All thermal imaging cameras include infrared sensors. These kinds of infra-red detector technology have actually been commonly used by the military services for many years. The armed service employed these types of cameras to uncover targets, monitor individuals, intelligence gathering and security. However, the technologies of Infra-red sensing has significantly broadened and today cams are readily available for other applications such as sensing a woodland fire, home security, sailing motorboats, position of people in mines as well as border patrol.\n- Thermal imaging cameras are most frequently employed by firefighters for finding the seat of structure fires, locating victims, spotting smoldering fires inside walls, and detecting electrical wiring that is overheating. They are also used for search and rescue operations in various low-visibility conditions. Thermal imaging cameras used by firefighters are highly durable. They are heat-resistant and contained in a rugged, waterproof housing.\n- The United States govt has long been making use of thermal imaging cameras along its border with Mexico as well as Canada for some time now. These types of cutting edge surveillance cameras are designed exclusively for the objective of sensing any kind of human activity at nighttime. The cameras employed for border patrol are available in just about all shapes and forms. They are often installed on automobiles along with motorboats.\n- There’s a widespread misunderstanding with regards to thermal imaging cameras. Quite a few people believe that they’re identical to infra-red cameras. In spite of this, there’s a notable distinction between a thermal imaging camera and an infra-red camera. The most significant difference between both of them is the level of temperature ranges that each one will be able to detect. An infrared camera possess a smaller range of detection which just starts above 200 degrees Celsius, where by a thermal imaging camera can sense all the way down below the freezing point.\nWithin the paranormal field, TIC’s are put into use on investigations to help detect temperature fluctuations whenever ghosts/spirits are thought to be present. Bigfoot researchers/hunters use the cameras in a more traditional manner and use them in the hopes of detecting Sasquatch’s body heat, in anticipation of Bigfoot sightings.","domain":"optical_engineering"}
{"url":"https://www.alberding.eu/en/surveying.html","date":"2023-12-05T13:09:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00571.warc.gz","language_score":0.8632572889328003,"token_count":218,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__252594194","lang":"en","text":"The Alberding A08 and A10-RTK sensors are used with a compatible field software to measure and\nstake out points, lines and polygons with millimetre accuracy. The target groups of the systems\nare primarily users who require an intuitive and affordable RTK system.\nSurveying applications are performed in the field acquisition software on a Tablet PC.\nWith the AGIS software, Alberding GmbH offers a field\nsoftware that is easy to use and adaptable to the respective tasks. Since the positions are\ntransferred in the MNEA standard format, the systems can also be used with third-party software\nDue to a limited mobile coverage and higher accuracy requirements, GNSS carrier phase raw data must be recorded\nfor post-processing purposes. The A08-RTK and A10-RTK sensors can store this measurement data internally and transfer\nit to a computer. The extended version of the Alberding Configurator is used to set up the measurement (point number,\nantenna height, measurement time).","domain":"optical_engineering"}
{"url":"https://www.navegalo.com/what-is-fiber-optics/","date":"2024-03-03T01:30:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476180.67/warc/CC-MAIN-20240303011622-20240303041622-00516.warc.gz","language_score":0.9512345790863037,"token_count":532,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__88174125","lang":"en","text":"An optical fiber is a flexible, transparent fiber, made by drawing or extruding glass (silica) or plastic in a diameter slightly thicker than that of a human hair. Optical fibers are more commonly used as a means to transmit light between two points of a fiber and have a wide use in fiber optic communications, where they allow transmission at greater distances and bandwidth (data rate) than the electric wires. Fibers are used instead of metal wires because the signals travel through them with less loss; In addition, the fibers are immune to electromagnetic interference, a problem from which metal cables suffer widely. Fibers are also used for lighting and imagery, and are usually wrapped in packages to introduce or remove light from tight spaces, such as a fibroscope. Some specially designed fibers are also used for a wide variety of diverse applications, some of which are fiber optic sensors and fiber lasers.\nTypically, optical fibers have a core surrounded by a transparent coating material with a lower refractive index. The light is maintained in the nucleus due to the phenomenon of total internal reflection that causes the fiber to act as a waveguide. Fibers that allow many propagation paths or transverse modes are called multimode fibers (MM), while those that allow only one mode are called single mode fibers (SM). Multimode fibers generally have a larger core diameter6 and are used for short distance communication links and for applications where high power transmission is required. Single mode fibers are used for communication links larger than 1000 meters.\nBeing able to join optical fibers with low loss is important in fiber optic communication. This is more complex than joining electrical cable and involves careful adhesion of the fibers, precise alignment of the fiber cores and the coupling of these aligned cores. For applications that need a permanent connection, fusion splices are made. In this technique, an electric arc is used to melt the ends and thus join them together. Another common technique is mechanical splicing, where the end of the fibers is kept in contact by means of a mechanical force. Temporary or semi-permanent connections are made through a specialized fiber optic connector.\nThe field of applied science and engineering responsible for the design and application of optical fibers is called fiber optics. The term was coined by the Hindu physicist Narinder Singh Kapany, who is widely recognized as the father of fiber optics.\nThe optical fiber is used as a means of transmission in telecommunications networks because of its flexibility the optical conductors can be grouped together forming cables. The fibers used in this field are plastic or glass and sometimes of both types. Because of the low attenuation they have, glass fibers are used in interurban environments.","domain":"optical_engineering"}
{"url":"https://shopcrazee.com/product/polarized-night-vision-driver-goggles/","date":"2021-03-05T07:04:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178370239.72/warc/CC-MAIN-20210305060756-20210305090756-00063.warc.gz","language_score":0.8324729800224304,"token_count":152,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__136058506","lang":"en","text":"Buy NOW! for Xtra 5% OFF! on ALL ITEMS!\n* Offer expires 31 January 2020.\nPolarized Night Vision Driver Goggles\n- Brand new and high quality.\n- Wear gray lenses during the day to eliminate roads and road signs while driving. And the glare of the car glass, anti-snow blind, reduce the stimulation of the eyes.\n- Wearing a yellow lens at night reduces the amount of sight caused by the high beam and xenon headlights.\n- Frame material: PC\n- Lens material: Resin\n- Anti-UV rating: UV400\n- Visible light perspective: 99 (%)\n- Gray lens For daylight\n- Yellow lens For night\n- 1 x Driver Goggles","domain":"optical_engineering"}
{"url":"https://blog.fotografit.eu/canon-g7x-mk3-vs-mk2-comparison/","date":"2022-08-16T15:47:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572408.31/warc/CC-MAIN-20220816151008-20220816181008-00356.warc.gz","language_score":0.8015375137329102,"token_count":585,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__211774301","lang":"en","text":"Canon G7X MK3 vs MK2 test\nThe new Canon G7X Mk 3 is the new frontrunner in the G7X series of compact cameras and features a stylish new update not just in looks but also technically and mechanically making it a versatile force to be reckoned with.\nThe new 20.1 Megapixel 1.0-inch stacked CMOS sensor powered by the new DIGIC-8 processor allows for 20 frames per second full-resolution bursts in high speed shooting mode.\nResolution in images is much the same as the Mk 2 but the update comes in the speed and processing of images. With the new CR3 format the Mark 3 can handle 55 RAW or 118 JPEG frames in 20 fps mode, and up to 70 frames in 30 fps RAW burst mode.\nThe Canon Mk 3 also allows focus bracketing that enables you to do focus stacking resulting in a much increased depth of field. This may be particular relevant for macro shots of immobile subjects.\nIntroduced on the Mk 3 are 4K video at 29.97 frames per second, or 1080p at 120 frames per second (uncropped).\nUSB-C charging is available so you can keep shooting wile charging via Powerbank although this will only apply above water.\nThe Mark 3 features Bluetooth control and you get the options of streaming live on fx. youtube.com directly from the camera if it’s connected to a hotspot or Wi-Fi.\nMajor improvements on the Canon G7X MK3\n|Canon G7X MK3||Canon G7X Mk2|\n|Uncropped 4K video||29.97 / 25 fps||N/A|\n|Full HD video 1080:||120 fps||60 fps|\n|Continous Drive:||30 fps||8 fps|\n|Burst shooting:||20 fps||8.1 fps|\n|Burst mode buffer||125 fps (Jpeg) / 72 fps (Raw)||32 fps (Jpeg) / 21 fps (Raw)|\n|Shutter speed:||1/256000 sec (electronic shutter)||1/2000 sec|\n|Max exposure:||30 sec||15 sec|\n|USB Interface:||USB 3.1 (5Gbit/sec)||USB 2.0 (480Mbit/sec)|\nThe G7X Mark 3 is the faster and more versatile choice with 4k video, way faster shutter, longer exposure time, bigger buffer and higher iso.\nThe iso and higher video frame rate will probably be the features that will make the most impact for your underwater shooting.\nCurrently only Nauticam offers a housing for this beautiful compact powerhouse but other options will soon be available.","domain":"optical_engineering"}
{"url":"https://evolvedentistry.com/product/vectra-h2-facial-scanner/","date":"2022-07-07T05:19:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104683683.99/warc/CC-MAIN-20220707033101-20220707063101-00174.warc.gz","language_score":0.790708065032959,"token_count":136,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__79957682","lang":"en","text":"Vectra H2 Facial Scanner\nThe VECTRA®H2 offers an all-in-one portable lightweight facial 3D imaging solution ideal for capturing cosmetic aesthetics of full mouth rehabilitation treatments. Delivering precision optics for high-resolution 3D images, the intuitive system is easy-to-handle and ready to use with minimal staff training.\n- Vectra H2 3D Scanner\n- Soft Carrying Case\n- SD Memory Card, (4) Batteries and (2) Chargers\n- 1-Year Warranty, Including Support & Updates\n- Remote Installation & Training\n- Free Shipping & Handling","domain":"optical_engineering"}
{"url":"https://datacenterfrontier.com/tag/panduit/","date":"2020-02-21T23:56:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145621.28/warc/CC-MAIN-20200221233354-20200222023354-00555.warc.gz","language_score":0.8816989660263062,"token_count":258,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__94134642","lang":"en","text":"Demands for data volumes and data rates are growing at a never-before-seen pace. A new white paper from Panduit explores how the data center fiber optic networking infrastructure requirements need to change and evolve to meet current and future demands for data volumes and data rates, which are only going to continue to grow.\nPushing the limits. This, according to a new white paper from Panduit, is going to be what moves network performance into the next era. A new report from Panduit explores how a fiber-optics solution can increase flexibility, agility, scalability, ease of deployment and more.\nThe right “future-focused fiber solution” can increase flexibility, agility, scalability, ease of deployment and more. Download the new white paper the explores Panduit’s Signature Core Fiber Optic Cabling Systems and their multimode fiber communication capabilities.\nThis business and technical white paper from Panduit is an exploration of the data center fiber optic networking infrastructure requirements needed to meet current and future demands for data volumes and data rates. Download the new report that explores how fibre optic cable and connectivity systems are a critical path-way that can potentially take today’s 10G – 40G systems through to 100G and 400G, and beyond.","domain":"optical_engineering"}
{"url":"https://istuk.madeinyorkshire.com/news/handcure-the-high-efficient-uv-led-system","date":"2021-04-16T06:55:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038088731.42/warc/CC-MAIN-20210416065116-20210416095116-00283.warc.gz","language_score":0.8766303658485413,"token_count":348,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__144195548","lang":"en","text":"HANDcure The high-efficient UV LED systemMember News\nHANDcure – a mobile UV LED handset for spot and area curing. The HANDcure typically is used in the field of bonding, curing and detection.\nUV curing adhesives and resins are used in complexe assembly and manufacturing solutions where it depends on a controlled curing and immediate handling strength. Based on the battery-powered electric tools of Nürtingen’s specialist Metabo, IST has developed HANDcure.\nThe device has a spectral range from 365 nm to 415 nm and weighs in the basic version just 1,0kg. With HANDcure a tireless working in various manufacturing processes is ensured.\nDetection and inspection of particle contamination\nDetection and inspection of material characteristics\nInterconnection of UV adhesives for immediate fixation\nInterconnection of UV curing potting compounds\nInterconnection of UV curing resins for the production of composite fibers\nInterconnection of UV curing primers and putties\nCuring parameters and times can be set via timer in the display.\nHigh performance in a very compact construction\nLightweight with good handling\nWireless mobile working\nLong lifetime with about 20.000 h\nNo warm-up time\nNo heat transfer to the substrate\nEmission spectrum of 365 nm to 415 nm\nLow power consumption and thus a long operation time\nThe HANDcure neither contains mercury nor ozone\nStandard delivery contains a HANDcure inclusively battery and charger. A quick charger and batteries with higher capacity are available on request. All components are delivered in one handy tool case.\nThe device exclusively will be distributed by IST Metz GmbH.","domain":"optical_engineering"}
{"url":"https://onenam.app/service-experts/interesting-facts-on-light-bulb/","date":"2020-07-14T10:01:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657149819.59/warc/CC-MAIN-20200714083206-20200714113206-00130.warc.gz","language_score":0.9196454286575317,"token_count":455,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__193371228","lang":"en","text":"In this article, we will know about the interesting facts on light bulb. The invention of the light bulb was in 1800s. The life of the people changed because of the light bulb. More activities cannot be done without seeing a dark night. Here there are few facts about the light bulb.\nInteresting Facts on Light Bulb\n1. Mass Production\n- The light bulb is considered as the best inventions which affect of human being.\n- It can be safely used by people.\n- Therefore, since its first invention, the light bulb has been produced largely.\n2. Environmental Causes\n- Even though people realize that the light bulbs gives them a lot of benefits, the environmental organization finds out that the elements inside the light bulbs affect the water and the soil.\n3. The Traditional Light Bulb\n- You can fin many types of light bulbs.\n- They come in different sizes, shapes and features.\n- If you choose traditional light bulb, the filament is very important when sending the electric current.\n4. Production of Light\n- Besides using filament, people can use chemicals or gasses to produce light.\n- If you look at the modern light bulk, it is equipped with the solid wire.\n- The function is to create light by hitting an electrician charge.\n5. Types Of Light Bulbs\n- Let’s find out the types of light bulbs.\n- Some of them include the metal halide, compact fluorescent, incandescent, tube fluorescent, LED lights, ultraviolet, high-pressure sodium vapor, tube fluorescent light and many more.\n- The invention of light was very useful in the past.\n- Many people made a research to make the safe light bulbs in 1800s.\n- The famous figures at that time include Thomas Edison and Joseph Wilson Swan.\n- Mercury is one of the dangerous components in the light bulbs and lamps.\n- The disposal of mercury without any careful attention can damage the purity of water and land.\n8. The Dangerous Product\n- Do you know that the third most dangerous is a light bulb.\n- This rank is based on the US Environmental Protection Agency.\n- There are 600 million light bulbs disposed in US each year.","domain":"optical_engineering"}
{"url":"https://cqlife.net/optica","date":"2023-01-30T05:11:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499801.40/warc/CC-MAIN-20230130034805-20230130064805-00330.warc.gz","language_score":0.9411840438842773,"token_count":976,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__4015416","lang":"en","text":"We explain what optics is, its history, impact on other sciences and how physical, geometric and modern optics differ.\nOptics studies the properties of light and how they can be used.\nWhat is optics?\nOptics is a branch of the physical who is dedicated to the study of light visible: its properties and its behavior. It also analyzes its possible applications in the life of the human being, as is the construction of instruments to detect or use it.\nLight has been defined by optics as a band of electromagnetic emissions, whose behavior is similar to that of other invisible forms (for us) of the electromagnetic spectrum, such as ultraviolet or infrared radiation.\nThis means that its behavior can be described according to the mechanics of waves (except in very specific contexts where light acts as a particle) and the approaches of classical electrodynamics of light.\nOptics is a very important field of research that provides tools for others Sciences, especially to the astronomy, engineering, Photography and medicine (ophthalmology and optometry). To her we owe the existence of mirrors, lenses, telescopes, microscopes, lasers and systems optical fiber.\nHistory of optics\nOptics allowed inventions vital to science, such as microscopes.\nThe field of optics has been part of the concerns of the human being since ancient times. The earliest known lens attempts date back to ancient Egypt or ancient Mesopotamia, such as the Nirmud lens (700 BC) made in Assyria.\nThe ancient Greeks were also concerned with understanding the nature of light, which they understood based on two perspectives: its reception or view and its emission, since the ancient greeks thought that objects emitted copies of themselves through light (called eidola). Philosophers like Deócritus, Epicurus, Plato and Aristotle they studied optics profusely.\nThese scholars were replaced by the alchemists and Islamic scientists during the medieval times such as Al-Kindi (c. 801-873) and especially Abu Ali-al-Hasan or Alhazén (965-1040), considered the father of optics for his Optics book (11th century), where he explores the phenomena of refraction and reflection.\nThe Renaissance European brought that knowledge to the West, especially thanks to Roberto Grosseteste and Roger Bacon. The first practical glasses were manufactured in Italy around 1286. Since then, the application of optical lenses for various scientific purposes has not ceased.\nThanks to optics, geniuses of the stature of Copernicus, Galileo Galilei and Johannes Kepler were able to carry out their astronomical studies. Later, the first microscopes allowed the discovery of life microbial and the start of the biology and modern medicine. The Scientific revolution entire is due, to a large extent, to the contribution of optics.\nPhysical optics is one that considers light as a wave propagating in the space. It is the branch of optics that is most faithful to the principles and reasonings of physics, making use of knowledge previous such as Maxwell's Equations, to cite an important example.\nIn that way, it worries about physical phenomena such as interference, polarization, or diffraction. In addition, it proposes predictive models to know how light will behave in certain situations or in certain media, when notsystems numerical simulation.\nGeometric optics allow the study of phenomena such as rainbows and prisms.\nGeometric optics is born from the geometric application of the laws phenomenological around refraction and reflection by Willebrord Snel van Royen (1580-1626), the Dutch scientist known as Snell.\nFor this, this branch of optics starts from the existence of a light ray, whose behavior is described by the rules of geometry to find formulas for lenses, mirrors and diopters. In this way it is possible to study phenomena such as Rainbow, the propagation of light and prisms. All this using the language of the math.\nThe contemporary branch of optics arises with quantum physics and the new fields of knowledge that the latter made possible, as well as its eventual applications in engineering. Thus, modern optics encompasses an enormous variety of new fields of research regarding light and its applications, including:\n- The mechanisms of laser (amplification of light by simulated emission of radiation).\n- Photoelectric cells, LED lights and metamaterials.\n- Optoelectronics, hand in hand with computing, and digital image processing.\n- Lighting engineering, with applications in the Photography, the movie theater and other fields.\n- Quantum optics and the physical study of the photon as a light particle and a light wave at the same time.\n- Atmospheric optics and the understanding of atmospheric light processes.","domain":"optical_engineering"}
{"url":"http://cambridgevisionclinic.org/news_details/3","date":"2021-06-15T06:04:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487617599.15/warc/CC-MAIN-20210615053457-20210615083457-00252.warc.gz","language_score":0.9076348543167114,"token_count":592,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__131426023","lang":"en","text":"Corneal disease is a major cause of blindness world wide and transplantation with a human donor cornea remains the main clinical line of therapy. However, the demand for corneal donation outpaces the supply, leading to delayed visual rehabilitation for several hundreds of patients worldwide who are awaiting corneal transplantation. Furthermore, conventional corneal transplants has a high risk of failure in patients with severe ocular surface disease and vascularised cornea often necessitating repeated transplant procedures without much visual success. A recent UK graft registry assessment showed up to 50% of patients requiring a full thickness corneal transplant (PK) had such high risk characteristics with poor prognosis with conventional corneal transplantation. A synthetic cornea could offer the necessary solution for these patients and remains an unmet need in this field. In response to our project grant application in March 2020, the Medical Research Council (MRC) awarded a £1.37m for this project as a career development grant to Dr Hirak K Patra, University of Cambridge and University college London in collaboration with Prof Madhavan Rajan at Addenbrooke’s Hospital and Anglia Ruskin University, Cambridge to develop a Assisted Regeneration Artificial Cornea (ARCs) which will mimic biological properties of the human cornea and have additional function as a mediated device with theranostic potential. Overseas collaboration with University of Montreal, Canada and Harvard, United States, would bring international expertise to our project. This combined diagnosis and therapeutic approach will enable disease monitoring and treatment to severe corneal scarring disorders for the first time and promises to address the unmet need in the field for artificial cornea.\nLaser technology enables surgeons to operate with greater precision when compared to conventional surgery. Addenbrooke’s Hospital is the first NHS unit in the UK to install the state-of-the-art ‘Femtosecond’ laser system. This infrared laser, with its ultra-precision, brings the potential to revolutionise eye surgery in the East of England, improving care and ensuring more patients can benefit.\nThe femtosecond laser project was led by Mr Madhavan Rajan, Consultant Ophthalmologist in 2016 and he performed the first femto procedure in Cambridgeshire, and since have completed several hundred procedures. Femtolasers help improve safety and accuracy when treating visually compromised patients with cataract and corneal disorders, thanks to Addenbrooke’s Charitable Trust and the Cambridge Eye Trust for their generosity to bring this innovative technology to patients in Cambridge and the East of England region'.\nCambridge Vision Clinic based in Cambridge, UK features an excellent team of eye care professionals offering a personalised, safe approach to patients with cataract and eye disorders for over 10 years.\nPhone: 01223 266 913\nFax: 01223 266 958","domain":"optical_engineering"}
{"url":"https://terasaki.org/institute/news/pr/contact-lenses-to-treat-dry-eye-syndrome.html","date":"2024-04-17T16:33:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817158.8/warc/CC-MAIN-20240417142102-20240417172102-00105.warc.gz","language_score":0.9366289973258972,"token_count":1026,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__119777632","lang":"en","text":"(LOS ANGELES) – A collaborative team from the Terasaki Institute for Biomedical Innovation (TIBI) has developed a contact lens prototype that is specifically designed to prevent contact lens-induced dry eye (CLIDE). The lens alleviates this condition by facilitating tear flow in response to normal eye blinking. This approach can relieve the discomfort, visual impairment, and risk of inflammation experienced by millions of contact lens users suffering from CLIDE.\nOf the 140 million contact wearers worldwide, 30%-50% suffer from CLIDE. The problem arises from the insufficient flow of tears from the contact lens's outer surface to the surface behind the lens. This leads to excessive tear evaporation and all the problems associated with CLIDE.\nCurrent treatments for this condition include rewetting drops, gels, or lubricants, more frequent lens replacement, or changes in the lens material. There are also eyelid treatments, such as eyelid massage and warm compresses. In more severe cases, physical stimulation of the tear glands may be utilized, as well as the use of punctum plugs, devices inserted into tear ducts to block drainage. Efficacy varies among these treatments, however, as well as potentially harmful accumulations of drugs in the body and the non-user-friendly methods that contribute to patient noncompliance.\nThere have also been previous attempts to use contact lenses in treating dry eye syndrome, such as graphene-coated lenses designed to minimize moisture loss and self-moisturizing lenses stimulated with metallic electrodes. But these methods are costly and impractical and may compromise patient safety and comfort.\nThe TIBI team’s approach uses a contact lens design that incorporates microchannels to facilitate tear flow movement and flow so that dry eye can be avoided. This flow can be achieved by pressure applied by normal eye blinking so that no external devices are needed.\nIn fabricating their contact lens prototype, the team utilized a time-saving method – their lens mold was made from a silicone polymer mixture; this allowed for easy removal of the lens cast on it by gently bending the mold. Previous methods necessitated a twelve-hour soak in hot water to remove the lens. The approach resulted in high-quality, smooth microchannels, as well as lenses that could be thirty times thinner than previous lenses. A custom device was used to fabricate reservoirs at the ends of each microchannel for the inflow and outflow of liquids.\nInnovative techniques were also utilized when encapsulating the microchannels in a sandwich-like assembly under a capping lens layer. Initially, the preparation of the two lens surfaces for stronger bonding dehydrated the lenses, causing them to curl. This problem was solved by affixing the two lenses to holders using water-soluble glue. This served not only to enable a more uniform bonding of the lenses but protected them from damage as well.\nAfter rigorously testing their encapsulated microchannel lenses for stability and leakage, the lenses were subjected to a series of experiments using a device that the team designed to simulate a blinking eyelid. This device was integrated with the lens prototype to create artificial eyelid pressure on the lens to stimulate tear flow.\nAfter various experiments, a configuration that proved effective was microchannels with square cross-sections arrayed in a novel circular pattern on the lens surface; this was compatible with the function and curvature of the lens and allowed for optimum liquid flow.\nThe team demonstrated a proof-of-concept validation of their lens’ ability to guide tear flow originating from the lens surface to the underside of the lens to combat dry eye syndrome. The team quantified these flows and established that the flows were driven by low-pressure levels like those from normal eye blinking. Further tests could be devised to test these lenses on animal models and in patients.\n“The inventive methods that our team has employed bring a potential solution for millions of people,” said Ali Khademhosseini, TIBI’s Director and CEO. “It is the hope that we may extend our efforts to bring this solution to fruition.”\nAuthors are: Yangzhi Zhu, Elham Davoodi, Rohollah Nasiri, Shiming Zhang, Sourav Saha, Matthew Linn, Lu Jiang, Zhuohong Wu, Reihaneh Haghniaz, Jinjoo Kim, Marvin Mecwan, Heemin Kang, HanJun Kim, Vadim Jucaud, Mohsen Akbari, Anna Herland, Mehmet R. Dokmeci, Ehsan Toyserkani, Ali Khademhosseini.\nThis work was supported by Cooper Vision, Inc.\nTerasaki Institute for Biomedical Innovation","domain":"optical_engineering"}
{"url":"http://fossil.energy.gov/news/techlines/2003/tl_fiberoptic_detector.html","date":"2014-11-23T13:12:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-49/segments/1416400379512.32/warc/CC-MAIN-20141119123259-00002-ip-10-235-23-156.ec2.internal.warc.gz","language_score":0.9005246758460999,"token_count":869,"dump":"CC-MAIN-2014-49","global_id":"webtext-fineweb__CC-MAIN-2014-49__0__158595158","lang":"en","text":"Issued on: January 21, 2003\nExperimental Fiber Optic Cables To Warn of Potential Pipeline Damage\nFirst Field Test of High-Tech Method for Improving Safety of the Nation's Gas Delivery System\nDes Plaines, IL - Every year natural gas pipelines are damaged by construction activities even though warning signs often mark utility right-of-ways. Now, a new fiber optic cable system being tested in a joint U.S. Department of Energy/Gas Technology Institute (Des Plaines, IL) project could give gas pipeline companies a remote method for detecting encroaching construction activity and help prevent potentially harmful accidents.\n||A technician deploys the underground fiber optic \"early warning system.\"\nThis month, in the first field test of the system, crews from ANR Pipeline Company, a subsidiary of El Paso Corp. of Houston, TX, buried fiber optic cables over one mile of active pipeline in northwest Indiana.\nDuring the next several months, construction equipment will create vibrations in the ground, causing compressions in the soil surrounding the pipeline. If the vibrations and soil compressions are sufficiently close to the pipeline, the fiber optic cable will bend ever so slightly. Even a minute deformation in the cable will change its light transmission and reflection properties and send an early warning of a potentially hazardous encroachment.\n\"Third-party damage\" is the major cause of damage to natural gas transmission pipelines. As urban areas expand and the demand for natural gas increases, buildings are being constructed increasingly closer to pipelines. More construction near pipelines increases the probability and consequence of damage.\nSeveral approaches have been suggested or are being studied for detecting potentially harmful impacts on the hundreds of thousands of miles of underground gas pipelines that crisscross the United States. Satellite, ground-based visual, and global positioning system monitoring systems are among the new technologies being studied to help protect the integrity of the nation's pipeline system. Fiber optic technology, however, is projected to be one of the least costly options. Moreover, it can help prevent pipeline damage, not simply detect it after it happens.\nGTI will test four different fiber optic cables. Three multi-mode fibers (Hergalite®, Corning® 62.5/125 and Corning® 50/125) and one single-mode fiber (Fibercore Limited's SM600), were buried above the pipeline approximately 15-50 centimeters below the surface of the ground.\nConstruction equipment does not have to break the fiber to be detected. When intrusion is detected, an alarm sounds, alerting the pipeline company of equipment encroaching on its pipe. This would enable pipeline companies in the future to take immediate action to stop unauthorized excavation and prevent potential damage to the pipeline.\nThe system not only can warn of approaching construction activity, it can also help operators pinpoint where along the pipeline the potential hazard is developing. Stresses in the fiber optic cable will cause some of the light to be reflected back to its source. Because the velocity of light in the fiber will be known, the location of the encroaching equipment can be determined by measuring the time for the reflected light pulse to return.\nThe largest technical barrier to perfecting fiber optic cable technology for pipelines is in developing methods to distinguish between potentially hazardous and benign intrusions into the right-of-way. Compared to benign activities and noises, such as pedestrian traffic and thunder, construction equipment will be large and have characteristic signals. One goal of the project is to minimize or eliminate false readings from the cables through all seasons and soil conditions.\nThe research project is funded through the DOE Office of Fossil Energy's Natural Gas Delivery Reliability Program, which is managed by the National Energy Technology Laboratory. Results of the project are expected in the fall of 2003.\n-End of TechLine-\nFor more information, contact:\nDavid Anna, DOE National Energy Technology Laboratory, 412/386-4646, e-mail: email@example.com\nRodney J. Anderson, DOE National Energy Technology Laboratory, 304/285-4709, e-mail: firstname.lastname@example.org\nDaniel J. Driscoll, DOE National Energy Technology Laboratory, 304/285-4717, e-mail: email@example.com","domain":"optical_engineering"}
{"url":"https://at.schurter.com/en/products-and-solutions/railway-technology/interior-lighting","date":"2023-12-11T20:04:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679516047.98/warc/CC-MAIN-20231211174901-20231211204901-00457.warc.gz","language_score":0.9466638565063477,"token_count":202,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__82708049","lang":"en","text":"In order to meet the current requirements for interior lighting for passenger compartment/driver's cab as well as engine room, we have developed a new modular system for lighting based on the first generation interior lighting products.\nBased on the applicable standard for interior lighting on rail vehicles – EN 13272 – LED modules are available in different lengths.\nThere is one input for main lighting and one input for emergency lighting. In case of emergency lighting, all LEDs shine with reduced luminous intensity. To guarantee increased reliability, the LEDs are divided into several lighting circuits.\nThe light strips are available individually as well as a module in a complete customized lighting unit.\nWe provide continuously updated 3D models & lighting simulations for every phase of the project\nTesting the idea\nIn our own light lab we measure the solutions on prototypes and series samples to deliver reliable feedback to customer requirements.\nWe don't stop at delivery. During typetesting on your vehicle we are creating light measurement reports to bring your project to final approval.","domain":"optical_engineering"}
{"url":"https://riceball.sg/products/falconeyerollflexrgblightf7","date":"2023-09-22T09:15:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506339.10/warc/CC-MAIN-20230922070214-20230922100214-00770.warc.gz","language_score":0.750416100025177,"token_count":366,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__282584531","lang":"en","text":"- Falconeyes Pockelite pocket lamp F7 is a RGB small fill light with built-in battery, which uses an integrated aluminium alloy fuselage.With magnet adsorption function\n- Maximum power is 12W, illumination is 4000lux with the distance of 0.3m and CRI is 97. The adjustable range of color temperature is 2500-9000K.\n- There is 0-100 level dimming, each color has 100 level saturation and brightness to adjust.\n- Built-in multiple scenario mode applications, including police cars, fire engines, ambulances, lightning, paparazzi, HSI slow rotation, HS fast rotation, TV screen and candlelight.\n- With 1 inch OLED display, Type-C standard USB charging interface, supporting QC3.0 fast charging, the brightest lasting time is about 2 hours.\n96pcs x 0.5W RGB\n54pcs x 0.5W White\n54pcs x 0.5W Yellow\nColor Control:0-100% Stepless Dimming\n2500K: 0.3M 4900 / 0.5M 1610 / 1M 397 / 2M 101\n5500K: 0.3M 5230 / 0.5M 1750 / 1M 434 / 2M 111\nDimension(mm)156x 80 x 15mm\nCRI:2500K:97 5500K:92 9000K:97","domain":"optical_engineering"}
{"url":"http://info@mwrf.com/webcasts/see-future-high-performance-real-time-oscilloscopes","date":"2014-04-18T01:31:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00497-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.8909620046615601,"token_count":185,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__155103900","lang":"en","text":"Sponsored by Agilent Technologies\nHigh-performance oscilloscopes are taking the next leap into the future. See how in this webcast from Agilent Technologies. You’ll want to attend if you make high-speed signal integrity measurements or validate leading-edge designs.\nDo you need to:\n- Measure four high-speed differential signals simultaneously to debug challenging cross-talk problems?\n- Validate high-speed SerDes designs?\n- Make ultra-wideband Radar and Satcom measurements without the measurement impairments resulting from down converters?\n- Accurately measure > optical communication systems that use advanced modulation schemes?\nYou’ll learn how Agilent’s next generation real-time oscilloscopes can help you solve even your toughest measurement problems.\nWho should view this webcast: R&D hardware engineers developing computer, semiconductor and communications systems.","domain":"optical_engineering"}
{"url":"http://mic.ntu.edu.tw/tw/people/member/11/aspernatur-maiores-qui.html","date":"2018-06-24T06:50:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267866888.20/warc/CC-MAIN-20180624063553-20180624083553-00458.warc.gz","language_score":0.8817022442817688,"token_count":345,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__146998602","lang":"en","text":"宋孔彬 SUNG, Kung-Bin\nPh.D. Biomedical Engineering (2003) The University of Texas at Austin\nM.S. Biomedical Engineering (1999) The University of Texas at Austin\nB.S. Electrical Engineering (1996) National Taiwan University\nAssociate Professor, Department of Electrical Engineering, National Taiwan University\nGraduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University\nMolecular Imaging Center, National Taiwan University\nGenome and Systems Biology Degree Program, National Taiwan University\nThe research focus in our laboratory is to push forward the technologies of sensitive optical detection and imaging systems and utilize these systems to aid biomedical research and develop new diagnostic tools. The long-term objective is to develop minimally invasive diagnostic tools for early detection of disease such as cancer. Areas of research in our laboratory include:\nDevelopment of novel optical spectroscopy and imaging instruments for biomedical applications, especially diagnosis of cancer at early stages.\nDevelopment of nanoparticles as contrast agents that can provide adequate optical signal and specificity to certain disease or target biomelocules.\nDevelopment of biochips combining optical sensing techniques and micro-/nano-fluidics for sensitive detection of biomolecules such as proteins. The long term goal is to develop high-throughput, cost-effective biosensors that can aid diagnosis of disease.\nExperimental studies to measure optical properties such as scattering, absorption and fluorescence of tissues and cells and analyze their relationships to the structure, biochemical constituents and functions of the tissues and cells.\nComputational simulation to facilitate interpretation of the experimental results and optimization of the methodology to differentiate normal tissue from the diseased.","domain":"optical_engineering"}
{"url":"https://kingfaisalprize.org/professor-paul-b-corkum/","date":"2018-11-17T21:43:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743854.48/warc/CC-MAIN-20181117205946-20181117231946-00462.warc.gz","language_score":0.9564463496208191,"token_count":818,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__36329737","lang":"en","text":"Born on October 30, 1943 in Saint John, N.B., Canada, Professor Paul Bruce Corkum received his Bachelor’s degree in physics from Acadia University in Wolfville, NS, Canada in 1965, and both his M.S. and Ph.D. in Physics from Leghigh University in Bethlehem, PA, USA in 1967 and 1972, respectively. He joined the National Research Council of Canada since 1973 and currently holds the Joint University of Ottawa-NRC Chair in Attosecond Physics.\nProfessor Corkum is a renowned authority on lasers and their applications. For more than three decades, he has been developing and advancing knowledge on how intense laser light pulses can be used to study the structure of matter. His research has consistently been “characterized by a deep physical insight accompanied by elegant models and supported by highly original experiments” which led to major advances in atomic and molecular physics. He won the KFIP in Physics jointly with Professor Ferenc Krausz in recognition of their independent pioneering work which enabled them to capture the stunningly fast motion of electrons in atoms and molecules with a time resolution down to attoseconds (an attosecond is one billionth billionth of a second).\nProfessor Corkum’s innovative research and contributions to physics have earned him wide recognition. He is a Fellow of the Royal Society of Canada, Fellow of the Royal Society of London and Foreign member of US Academy of Sciences. He is also a Fellow of the Institute of Physics, the American Physical Society and the Optical Society of America. In 2007, he was inducted to the Order-of-Canada. His other honours and awards include: Gold Medal of the Canadian Association of Physicist for lifetime achievement in Physics (1996); Einstein Award of the Society for Optical and Quantum Electronics (1999); Tory Medal of the Royal Society of Canada (2003); LEOS distinguished lectureship; (2001-2003); Her Majesty Queen Elizabeth II: Golden Jubilee Medal (2003); Charles Townes award of the Optical Society of America (2005); IEEE’s Quantum Electronics award (2005); Killam Prize for Physical Sciences (2006); The American Physical Society’s Arthur L. Schawlow Prize in Laser Science (2006); the Natural Sciences and Engineering Research Council of Canada (NSERC)’s Polanyi prize (2007); NSERC’s Herzberg Prize (2009) and Zewail Award of the American Chemical Society (2010). He was also awarded honorary doctoral degrees from both Acadia University (2006) and the University of Western Ontario (2009) in Canada.\nProfessor Corkum authored more than 240 peer-reviewed papers, most of which in leading physics journals; he also edited several books and gave approximately 23 public, plenary or invited lectures per year. He mentored numerous MSc and PhD, Postdoctoral Fellows and visiting scientists in his laboratory. He also served for six years as a member of the editorial board of the Journal of Physics B, became its Deputy Editor from 2009-2011 and currently its Editor. He is also a member of the editorial advisory board of the International Journal of Nonlinear Optics.\nProfessor Paul B. Corkum and Professor Ferenc Krausz were recognized for their independent pioneering work which has made it possible to capture the incredibly fast motion of electrons in atoms and molecules in a “movie” with a time resolution down to attoseconds. An attosecond is a vanishingly short time. One attosecond compared to one second is like one second compared to the age of the Universe.\nWhen intense ultra-short laser pulses are focused into a gas, a laser-like beam of attosecond pulses of ultraviolet light is produced.\nProfessor Corkum was the first to explain this phenomenon with a conceptually simple model. He has harnessed this process for pioneering studies in collision physics, plasma physics, and molecular science. He has even been able to produce tomographic images of the movement of electrons in molecules.","domain":"optical_engineering"}
{"url":"http://digital.bibliothek.uni-halle.de/ulbhalhssun/content/titleinfo/2591241","date":"2021-06-20T03:24:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487655418.58/warc/CC-MAIN-20210620024206-20210620054206-00454.warc.gz","language_score":0.9033827185630798,"token_count":422,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__114806049","lang":"en","text":"Three-dimensional structures for photonic crystal applications have been fabricated up to now either by pure bottom-up approaches like colloidal self-assembly, by pure top-down approaches using VLSI technology or by interference lithography. Here we demonstrate the fabrication of three-dimensional silicon networks by a self-stabilized electrochemical etching technique on lithographically prestructured single crystalline substrates. Using a square two-dimensional lattice and a modulated current-voltage-profile, a columnar porous structure with strong diameter modulations is obtained. Subsequent homogenous and isotropic (i) or even anisotropic (ii) etching converts the columnar structure to a cubic geometry of high porosity and an air filling fraction of 80%. In the case of an isotropic etching the porous material is build up of intersecting air spheres in silicon. The optical characterizations along various high symmetry directions of the crystal confirm the achieved periodicity and shape and suggest this material for photonic crystal applications. According to theory this arrangement of air spheres in silicon opens a complete three-dimensional photonic bandgap of about 4.9% centered at 3 µm. Moreover, the subsequent anisotropic etching of the initial porous structure, which exploits the crystallographic nature of the substrate used, converts the former circular cross-section of the pores into an almost squared one. We theoretically study the dispersion behavior of PCs being fabricated by this developed technique. In addition, we present experimentally realized structures and characterize the photonic crystal optically. The reflectance measurements are in good agreement with corresponding bandstructure calculations. A major part of this work deals with the investigation and characterization of fabrication-related disorder and its prevention. This process allows the introduction of defect layers laterally during the etching process as well as vertically - by lithography - achieving a three-dimensional nanopositioning control. Moreover, the introduced process extends the variety of designing and sculpturing three-dimensional microstructures to meet the requirements of a multitude of micro- and nano-technological applications.","domain":"optical_engineering"}
{"url":"http://topunive.com/products/2555.html","date":"2018-10-17T04:11:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583510969.31/warc/CC-MAIN-20181017023458-20181017044958-00044.warc.gz","language_score":0.7596712112426758,"token_count":155,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__19905102","lang":"en","text":"Dedicated controller: remote control, optically control, time control; anti-overdischarge and short-circuit resistance.\nLamp shell is made of aluminium alloy, coated with electrostatic spraying, anti-salted, anti-acid and rust resistant.\nLamp shade: PMMA material, nanometer anti-glare process.\nFull brightness work for first 3 hours, then half brightness for another 3 hours, then turn off automatically.\nThe brightness of light can be adjusted by magnet.\n- Light Distribution Curve\nBattery Capability 4.8V/4Ah\nPower of the Light 1.2W\nTotal Height 800mm\nWind Resistance 27m/s\nLast for Rainy/Cloudy Days 3~5 Days","domain":"optical_engineering"}
{"url":"https://org.imaging.nikon.com/lineup/coolpix/s/s9400/index.htm","date":"2022-07-01T16:32:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103943339.53/warc/CC-MAIN-20220701155803-20220701185803-00108.warc.gz","language_score":0.8680313229560852,"token_count":147,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__226660250","lang":"en","text":"18x zoom with combination of lens shift and electronic VR in slim, stylish form\nDespite its long reach, the NIKKOR lens with 18x optical zoom covering from wide-angle 25 mm to super-telephoto 450 mm* is contained in a remarkably slim, stylish body that fits comfortably in the hand. The 18.1 effective megapixels provided by the Backside illumination CMOS image sensor work seamlessly with combination of lens shift and electronic VR (Vibration Reduction) to produce beautiful pictures, from close-up portraits to wide open vistas captured using the maximum wideangle position. And with the consecutive shot combining technology you can capture impressive night scenes with low noise and minimal blur.\n- * 35mm format equivalent","domain":"optical_engineering"}
{"url":"https://telescope.ljmu.ac.uk/TelInst/Targeting/index.php","date":"2024-04-16T13:39:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817095.3/warc/CC-MAIN-20240416124708-20240416154708-00307.warc.gz","language_score":0.9126842617988586,"token_count":737,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__204288150","lang":"en","text":"The physical centres of the various imaging arrays on the LT are not necessarily aligned with the optical axis of the telescope. The LT's normal acquisition procedure is therefore to first place the telescope's nominal pointing centre on the target (i.e., \"blind pointing\") and then issue a \"Focal Plane\" command which offsets the centre of the instrument field-of-view onto the requested coordinates. This process may be subject to an absolute pointing error of around 10 arcseconds. While this is usually adequate for imaging, more precise acquisition is required for spectroscopy.\nTarget acquisition for spectroscopy may be achieved in two ways. Initially, an image of the target field is always obtained using the LT's work-horse wide-field optical imager (currently IO:O). That image is then used either to identify the brightest source in the field and to centre on that target, or to calibrate the pointing of the telescope by identifying stars in the field and fitting a world-coordinate system (WCS) to the image. Based on this WCS-fitting process, the telescope is offset to move the target position onto the spectrometer (for FRODOspec this is to within 2 arcsec of the centre of the fibre bundle). Two or three images may be used to fine-tune the telescope position before switching to spectroscopy mode and beginning the observation.\nFor more details see the FRODOspec instrument page. Note that this FINE TUNE acquisition process can in principle be used for any instrument, not just with the LT's spectrometers. However, this process increases the overheads on the project (by a few minutes) and should therefore only be used if telescope pointing at the ±2arcsec level is important.\nDue to flexibility problems with the coolant pipes, we were forced to dispense with the practice of routing them through the cable wrap in the cassegrain axis rotator. For most observations the rotator is therefore set to one of the \"cardinal\" sky angles of 0, 90, 180 or 270 degrees. This means that images will be automatically rotated to one of these angles, the choice being the one that will give the longest possible uninterrupted observing time before reaching a mechanical rotator limit. It is possible that the sky angle will change during a (very) long series of exposures - but not during an exposure!\nSpecific control of field rotation is available for cases where the science requirements of the programme demand it, but in general we recommend leaving the rotator on its default automated setting.\nThough observations at different epochs may be obtained at different sky orientations, the default choice of \"cardinal\" sky angles means that the overlap between repeated images of the same field is always maximized, which is important for programmes relying on secondary standards within the fields. The standard \"North at the top\" image display orientation is simple to achieve in an image viewer, using only 90 degree rotations.\nPointing below altitude 40 degrees\nOccasionally the telescope does not point well below Alt ~ 40 degrees. This is due to a problem with the mirror support on one of the three sectors behind the mirror cell. Images can be obtained that are shifted by 30-40 arcsec. However, this problem does not affect telescope tracking or guiding, so the image quality itself should not be affected. If your science requires that a target be positioned on the same spot on the CCD each time it is observed, acquisition similar to what is used for spectroscopy can be used (as noted above). Please contact us for further details.","domain":"optical_engineering"}
{"url":"http://www.olx.ph/index.php/classifieds+directory/q/fiber+optics+technician+jobs","date":"2014-04-23T12:26:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00201-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9389627575874329,"token_count":120,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__176515883","lang":"en","text":"1 Result for \"fiber optics technician jobs\" Philippines\nAds per page:\nFiber Optics Technician Course ₱ 20,000.00 More Details ▼\nPosted March 8, 2014\nQuezon City, Metro Manila\nThis Accredited and Certificated Fiber Optics Technician Course is designed for anyone interested in becoming a Fiber Optics Technician or who needs to understand or use Fiber Technology within their job. This program combines both theory and practical exercises with at least 75% hands-on...\nDidn't find what you were looking for? Try these searches:","domain":"optical_engineering"}
{"url":"https://top5certifications.com/promising-class-of-rugged-photonic-sensors-can-be-used-in-high-radiati/","date":"2023-11-28T10:04:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00420.warc.gz","language_score":0.9027011394500732,"token_count":339,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__90906328","lang":"en","text":"GAITHERSBURG, Md. – Researchers at the National Institute of Standards and Technology (NIST) have published landmark test results that suggest a promising class of sensors can be used in high-radiation environments and to advance important medical, industrial and research applications. News-Medical.Net reports. Continue reading original article\nThe Military & Aerospace Electronics take:\n3 Dec. 2018 — Photonic sensors convey information with light instead of electric currents in wires. They can measure, transmit, and manipulate streams of photons — typically through optical fibers — and are used to gauge pressure, temperature, distance, magnetic fields, and environmental conditions.\nThese rugged sensors are attractive because of their small size, weight, and power consumption (SWaP), as well as their tolerance of environmental variables like mechanical vibration. But the general consensus has been that high levels of radiation would modify the optical properties of their silicon, leading to incorrect readings.\nSo NIST, launched a program to answer those questions. The test results indicate the sensors could be customized for measuring radiation dose in both industrial applications and clinical radiotherapy. The results of its first round of testing is reported in Nature Scientific Reports.\nRelated: Navy looks to quantum photonic imaging technology for stealthy underwater sensors\nRelated: DARPA reaches out to industry for small optical sensor using free-space optical technology\nRelated: Four companies to develop enabling technologies for tomorrow’s electro-optical lidar sensor\nJohn Keller, chief editor\nMilitary & Aerospace Electronics\nReady to make a purchase? Search the Military & Aerospace Electronics Buyer’s Guide for companies, new products, press releases, and videos\nSource link Google News","domain":"optical_engineering"}
{"url":"https://www.binmeibio.com/news/what-is-fluorescent-phycocyanin-7673774.html","date":"2019-01-21T20:16:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583807724.75/warc/CC-MAIN-20190121193154-20190121215154-00078.warc.gz","language_score":0.9293539524078369,"token_count":155,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__66074892","lang":"en","text":"Is a novel fluorescent marker that is isolated from Spirulina and has unique optical properties.\nFPC can emit strong fluorescence, has good light absorption and high quantum yield, its fluorescence intensity than the commonly used fluorescent strong 30 times in the visible spectrum area has a wide range of excitation and emission.\nFPC for fluorescent probes has the following advantages:\n(1) has a higher absorption coefficient over a wide spectral range;\n(2) have a higher fluorescence yield over a wide pH range;\n(3) their fluorescence does not disappear due to the presence of other biomolecules;\n(4) have better water solubility;\n(5) liquid or solid state is very stable, and can save a long time.","domain":"optical_engineering"}
{"url":"http://femtoldv.com/unique-femto-technology.html","date":"2017-02-20T13:07:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170562.59/warc/CC-MAIN-20170219104610-00255-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.8875276446342468,"token_count":424,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__198946121","lang":"en","text":"A technical revolution in ocular surgery\nZiemer’s proprietary FEMTO LDV systems are based on a radically different technology. With their unique operating concept, the FEMTO LDV systems have already become the technology leader among all femtosecond lasers.\nMicroscope lens quality optics\nOperating with very low pulse energy (nJ) and very short pulse width but very high pulse frequencies (> 5 MHz), the threshold for tissue disruption is reached without requiring an amplifier.\nThis low energy delivery has turned out to be the most relevant factor for a gentle tissue resection:\nThe FEMTO LDV Z Models feature a hand-piece with a highly sophisticated optical system: an optomechatronical masterpiece.\nThese custom made microscope lenses with high numerical aperture assure a perfect focus and ensure high precision in cutting depth:\nHigh density pulse raster\nStandard pulse rasters by conventional laser systems:\nAn incomplete resection may lead to tissue-bridges: the flaps cannot be easily lifted and there is more mechanical stress on the eye.\nHigh density pulse raster by Ziemer’s FEMTO LDV systems:\nThe precision optics, the custom-made laser sources and a proprietary high speed scanning system generate tightly focused low-energy laser pulses in an overlapped pulse raster.\nThis results in a complete and smooth resection with no interstitial, un-dissected spaces andminimal complications.\nThe FEMTO LDV Z2, Z4, Z6 and Z8 are CE marked and FDA cleared. For some countries, availability may be restricted due to regulatory requirements; please contact Ziemer for details. Presbyopia treatments occur exclusively by a pocket creation and the implantation of a corresponding corneal inlay of a third party. Availability of related corneal inlays and implants may vary according to policy of the individual manufacturers and regulatory status in the individual countries. To comply with FDA regulations, devices for sale in the U. S. do not mention 'Presbyopia' on the panels.","domain":"optical_engineering"}
{"url":"http://tsgroup.com.au/our-services/fibre-optic/","date":"2019-08-19T05:52:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027314667.60/warc/CC-MAIN-20190819052133-20190819074133-00190.warc.gz","language_score":0.8987400531768799,"token_count":252,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__140529938","lang":"en","text":"Telcom Services Group has certified, accredited & experienced fibre optic technicians capable of working with all forms of commercial and carrier fibre optic networks.\nTelcom Services Group designs, installs and maintains the fibre optic network and has been a core offering since formation in 2001. We have a wealth of experience combined with a fully trained and equipped workforce. Over the years significant investment has been made within our organisation to ensure we have the latest and most advanced technology in equipment including fusion splicers, OTDR’s, light source and power meters.\nTelcom Services Group’s fibre optic capabilities are as follows;\n- Design and construct to recognised industry standards.\n- Fully equipped and trained workforce.\n- Internal building and external infrastructure capability.\n- Single-mode and multi-mode capability.\n- External splicing of high core count fibre cables.\n- OTDR, PMD, light and power testing capability.\n- Familiar with mission critical environments such as data centres.\n- Experience in FTTH (Fibre to the home).\n- Experience in FTTB (Fibre to the building).\n- Experience in FTTP (Fibre to the premises).\nWe are accredited with the following carriers:","domain":"optical_engineering"}
{"url":"https://www.purrfectpawspetsupplies.ca/nite-ize-nitedog-rechargeable-led-collar-lime.html","date":"2024-02-24T06:01:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474523.8/warc/CC-MAIN-20240224044749-20240224074749-00541.warc.gz","language_score":0.8944885730743408,"token_count":217,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__204464842","lang":"en","text":"Welcome to a whole new world of nighttime visibility. Two ultra-bright LEDs send light through an integrated optical fiber to create full-length illumination so bright you need to see it to believe it. Featuring the convenience of rechargeability and easy push-button operation, this collar lights up for more than six hours on a single charge. Our optical fiber technology transmits light throughout the entire length of the collar without loss of light output and offers both constant glow and flash mode. The high-quality metal belt-buckle style closure is simple to adjust. This highly water-resistant collar is designed for ultimate durability and is available in a variety of sizes to fit large and small dogs.\n-Integrated optical fiber and two high-powered LEDs provide full-length illumination\n-Glow or flash\n-Easy push-button operation\n-High-quality metal belt-buckle style closure for quick and easy adjustment\n-Strong metal D-ring\n-Recharges in approximately 1.25 hours using micro USB cable (not included)\n-Run time: 6.5 hours","domain":"optical_engineering"}
{"url":"https://zoomzoomparts.com/products/suzco-4inch-60w-3-row-offroad-led-work-light-bar-driving-wiring-harness-switch-kit-combo-spot-flood-combo-lightbar-waterproof-12v-24v-with-mounting-bracket-tube-clamp-1-1-5-1-75-2-for-4x4-atv-utv","date":"2023-01-27T11:34:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494976.72/warc/CC-MAIN-20230127101040-20230127131040-00377.warc.gz","language_score":0.7852877974510193,"token_count":658,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__145673056","lang":"en","text":"SUZCO 4INCH 60W 3-Row Offroad Led Work Light Bar Driving Wiring Harness Switch KIT/COMBO, Spot/Flood/Combo Lightbar Waterproof 12V 24V with Mounting Bracket Tube Clamp 1\"/1.5\"/1.75\"/2\" For 4x4 ATV UTV\nColor: 4 INCH-Plug and Play\n- 【ITEM TYPE】This kit/combo is our SUZCO's 4inch 60w Triple-row LED working bar light, offroad mounting brackets clamp, and wiring harness Kits. IP67 waterproof, seamless protective housing with waterproof glue, great performance of waterproof, dustproof and quakeproof. extremely bright, low heating, high power, long-distance irradiation. Tri-row LED optic system, project light to the extreme distance through the dark& keep bright surround lighting in a wider range.\n- 【INNOVATIVE TRIPLE-ROW REFLECTOR CUP】the combination of super multi-lamp beads can achieve extremely high luminous efficiency. The combination of triple row and the nesting upgraded reflectors cup is used in the middle. The wide reflector in the middle allows multi-angle refraction, the new ultra-thin structure supports have large luminescence surface and high luminosity, which is very suitable for extreme environment lighting.\n- 【HIGH PERFORMANCE HEAT DISSIPATION】The vertical heat conduction chip directly contacts the heat sink to increase the heat dissipation area and improve the heat dissipation performance. The working temperature of the 3030 lamp bead is 20% lower than that of the integrated high-power lamp bead under the application of the same material. Special designed 6063 Aluminum profile with Thermal grease can improve the heat dissipation ability to make it more durable.\n- 【EASY INSTALL & APPLICATION】Upgraded strong aluminum alloy fixes the light on the tube firmly, raises the light bar to avoid scratches while driving. It allows you to freely install the position of the light and illuminate the road ahead of you. Our light bar can be compatible with almost all Jeeps, 4x4, Motorcycles, SUVs, Trucks, ATVs, Cars, Boats, Garden Lighting, Backyard Lighting, Back-up Light, Off Road Lighting, Construction Lighting, etc.\n- 【PACKAGE INCLUDING】2x 4Inch 60w Triple-row LED Work Light Pods; 2 x Offroad Led Light Mounting Brackets Clamp Kit 1\"/1.5\"/1.75\"/2\"; 1x 10ft Wiring Harness Kit w with DT Connector; 2 x 2” Doubled Sided Tape (for 2\" tubes); 1x Set of Tool & Screws/Bolts/Washers; 2x Installation Manual.\nmodel number: SUZCO113689\nPart Number: SUZCO113689\nPackage Dimensions: 13.8 x 4.5 x 4.3 inches","domain":"optical_engineering"}
{"url":"https://www.isc-hpc.com/tuesday-keynote-2018.html","date":"2023-12-01T20:38:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100304.52/warc/CC-MAIN-20231201183432-20231201213432-00808.warc.gz","language_score":0.8429844975471497,"token_count":393,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__212759034","lang":"en","text":"Tuesday Keynote 2018\nDr. Keren Bergman\nCharles Batchelor Professor of Electrical Engineering, Columbia University\nEMPOWERING FLEXIBLE AND SCALABLE HIGH PERFORMANCE ARCHITECTURES WITH EMBEDDED PHOTONICS\nThe explosive growth in data analytics applications that rely on machine and deep learning techniques is seismically shifting the landscape of high performance architectures. Driven by these applications, system performance is increasingly bottlenecked by the energy and communications costs of interconnecting the numerous heterogeneous compute and memory resources. Recent advances in integrated silicon photonics offer the opportunity of embedding optical connectivity that directly delivers high off-chip communication bandwidth densities with low power consumption. This talk will review these advances and introduce the concept of embedded photonics for addressing data movement challenges in high-performance systems. Beyond alleviating the bandwidth and energy bottlenecks, embedded photonics can enable new disaggregated architectures that leverage the distance independence of optical transmission. I will also discuss how the envisioned modular system, interconnected by a unified photonic fabric, can be flexibly composed to create custom architectures tailored for specific applications.\nKeren Bergman is the Charles Batchelor Professor of Electrical Engineering at Columbia University where she also serves as the Scientific Director of the Columbia Nano Initiative. Prof. Bergman received the B.S. from Bucknell University in 1988, and the M.S. in 1991 and Ph.D. in 1994 from M.I.T., all in Electrical Engineering. At Columbia, Bergman leads the Lightwave Research Laboratory encompassing multiple cross-disciplinary programs at the intersection of computing and photonics. She also serves on the Leadership Council of the American Institute of Manufacturing (AIM) Photonics leading projects that support the institute’s silicon photonics manufacturing capabilities and Datacom applications. Bergman is a Fellow of the Optical Society of America (OSA) and IEEE.","domain":"optical_engineering"}
{"url":"https://hawaiii.github.io/","date":"2023-09-24T17:42:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506658.2/warc/CC-MAIN-20230924155422-20230924185422-00258.warc.gz","language_score":0.9034313559532166,"token_count":484,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__88112301","lang":"en","text":"I am a research scientist at Epic Games. I obtained my PhD from Carnegie Mellon University, advised by Aswin Sankaranarayanan.\nMy research interests are\ncomputational photography & imaging\nphysics-based differentiable rendering\n3D geometry and calibration\nadapting painting techniques to photography\nBefore Ph.D., I received my M.S. in Computer Vision from Carnegie Mellon University in 2016, and B.S. in Computer Science from Rice University in 2015.\nI interned at Google Daydream in 2018 and Apple Special Project Group in 2016.\nMy primary research interest lies in computational photography.\nDuring my Ph.D., I worked on camera designs that can significantly minimize their size and bulk -- cameras without lenses.\nI developed both novel hardware and their reconstruction algorithms to enhance the speed and quality of 3D lensless imaging.\nUltrasonically-sculpted waveguides can be used as a virtual lens to guide and focus light in transparent and scattering media. However, the images formed by such lenses are subject to a large amount of spatially-varying blur. We propose two computational deblur techinques: one straigh-forward approach using mode 0 measurements, and another more efficient approach based on Radon transform and mode 2 measurements. The computationally deblured images reveals more details from the scene behind scattering media.\nRecovering images from lensless measurements are challenging because the per-pixel depth of the scene needs to be correctly identified to avoid artifacts in the reconstruction. We introduce computational focusing on lensless measurements so that we can reconstruct one depth slice of the scene at a time, and improve the speed as well as the quality of reconstruction.\nInstead of a planar sensor with a rigidly attached modulation element, we propose a lensless imager on a spherical surface, where all pixels share the same angular response profile.\nThe implications of our design is that lensless imaging can be enabled for curved and flexible surfaces, thereby opening up a new set of application domains.\nLearning Cross-Modality Matching Function for Trinocular Stereo\nin collaboration with Supreeth Achar\nat Google Daydream, 2018\nTrained a network for cross-spectral (RGB-infared) feature matching for trinocular stereo to improve high-resolution depth estimation of specular objects.","domain":"optical_engineering"}
{"url":"http://viagrabuy.us.com/tag/best-circle-lenses/","date":"2020-04-06T22:15:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371660550.75/warc/CC-MAIN-20200406200320-20200406230820-00061.warc.gz","language_score":0.924283504486084,"token_count":648,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__133476478","lang":"en","text":"GEO Circle Lenses Or GEO Coloured contact lenses is the most well-liked beauty lens model out there proper now that’s manufactured by a Korean-based firm – GEO Medical Ltd.\nGEO lenses are one of many main manufacturers within the markets which might be out there in large varieties of colours and types.\nOn this put up, we are going to discover the entire several types of beauty contact lenses that GEO provides to their customers.\nGEO Typical delicate contact lenses\nThese are prescription contact lenses that provide imaginative and prescient correction like these present in different model contact lenses.\nThey’ve a hue of blue or aqua for simply dealing with and never for shade impact thus they don’t seem to be thought of beauty contact lenses, however moderately imaginative and prescient correction contact lenses Colored contacts cheap.\nGEO Magic Circle Lenses collection\nGEO magic Circle Lenses are beauty contact lenses that are available in colours of black, gray, or brown. They’re designed to make your eyes look greater with none shade impact. They’ve some patterns of black, brown or grey on the contact lenses, however the colourful patterns are often invisible when you find yourself sporting them. The diameter of the lenses is 14 mm.\nGEO Magic Colour Lenses collection\nGEO Magic shade lenses are beauty coloured lenses which might be out there in a wide range of totally different patterns and colours.\nYow will discover a wide range of colours from this collection like purple, pink, yellow, orange, blue, inexperienced, grey, black, and brown.\nGEO Magic shade lenses are available in many alternative types and mixtures; they’re designed to boost the looks of your eyes with their wide selection of colours and sample out there. The totally different patterns may give your eyes a special look though they often is the similar shade. In addition they have a teary, refreshing have an effect on that can make your eyes look extra alive.\nGEO Development lens collection\nGEO Development lenses are designed with distinctive patterns or photographs on the lenses like hearts, stars, or butterflies. These kind of lenses are nonetheless in a position to have an enlarging impact in your eyes, plus when somebody appears in your eyes, they’ll see gentle designs of stars, hearts and butterflies in them in swirls or totally different patterns. They will additionally give your eyes a tearful trying making them look extra refreshed.\nGEO Animation / festive lenses collection (Loopy lens)\nGEO Festive or Animation lenses are principally celebration lenses which might be designed for particular events like costume events. They’ve daring colours and designs of pleased faces, hearts, anime-looking designs, soccer balls and extra on your eyes.\nGEO Picture shade lenses\nGEO Picture shade lenses are a really new idea lens.\nThis lens are customized made to have some message on the lens itself thus when somebody take a look at it, they’ll be capable of see the message.\nAside from message, one may have characters or different photographs on the lens to boost your look and make it enjoyable for everybody utilizing it","domain":"optical_engineering"}
{"url":"http://crossbowhuntin.com/trijicon-acog-xb/","date":"2021-06-22T04:56:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488507640.82/warc/CC-MAIN-20210622033023-20210622063023-00190.warc.gz","language_score":0.8778715133666992,"token_count":385,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__53982176","lang":"en","text":"The Trijicon ACOG XB Crossbow Scope is compact, lightweight, rugged, and battery-free. Utilizing the same platform as the traditional ACOG, this crossbow optic is tough, accurate, and reliable.\nThe Trijicon ACOG XB Crossbow Scope is compact, lightweight, rugged, and battery-free. Utilizing the same platform as the traditional ACOG, this crossbow optic is tough, accurate, and reliable. The reticle is lluminated in any light by fiber optics and tritium, has bolt drop compensation lines and features a built-in ranging reference system.\nTrijicon XB Crossbow Scope: Key Features\nBOLT DROP COMPENSATOR\n- Designed to be zeroed at 30 yards with stadia lines out to 80 yards in 5 yard increments.\n- Trijicon ACOG XB delivers increased hit potential in all lighting conditions – without the use of batteries.\nADVANCED FIBER OPTICS\n- Automatically adjusts the brightness level and contrast of the reticle to available light conditions.\n- Aiming reticle glows in low-light conditions for quick target acquisition. Lamp is guaranteed to illuminate for 15 years.\n- Forged 7075-T6 aircraft-grade aluminum housing provides extreme durability in a compact design and will withstand the shock pattern of all crossbows.\nBROADBAND ANTI-REFLECTIVE COATED LENSES\n- Multi-coated lens provides superior clarity and light gathering capabilities with zero distortion.\n- Since only the prism housing moves, the Trijicon ACOG XB is much more rugged than conventional designs.\n- Up to 100 METERS (328 FT. and filled with dry-nitrogen filled to prevent fogging.\n- Tritium lamp is warranted to illuminate for 15 years from date of manufacture.","domain":"optical_engineering"}
{"url":"https://www.sectodesign.fi/news/blog/light-brightness-and-color-scales","date":"2024-04-13T12:47:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816734.69/warc/CC-MAIN-20240413114018-20240413144018-00572.warc.gz","language_score":0.8976774215698242,"token_count":575,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__37741766","lang":"en","text":"Light brightness and color scales\nWithin the lighting industry there are specific terms regarding the quality of the light emitted from a light bulb and how to measure the brightness. Understanding these terms can be helpful when trying to decide which lighting fixtures and light bulbs will be the right ones for a certain space and atmosphere. Below is a description of the most relevant terms regarding the color and brightness of light bulbs.\nLumens indicates how bright the light is, simply, the higher the lumens the brighter the light will be. When calculating the number of lumens that is needed for lighting up a space it is important to consider how large the area is (m2) and what the purpose of the area is. For example, ambient lighting for a 20 m2 living room should be around 1000 Lumens. There are specific calculators to support you in choosing the right amount of Lumens.\nLumens indicates how bright the light is.\nKelvin is a measurement scale used to measure a light bulb’s specific color temperature. The higher the number is on the Kelvin scale the cooler and more bluish white the light is. In normal household fixtures the color temperature will most likely range between 2700K and 3500K. Understanding the different ranges of the Kelvin scale helps to choose the right fixture for the area in question. For example, choose a color temperature between 2000K – 3000K for living areas in a house such as bedrooms and dining rooms but go for higher color temperatures in kitchen areas where brighter light is more useful (3000K-4500K). If a more ambient setting is wished for that replicates candle-light, then light bulbs with less than 2000K are preferable. So, the higher the Kelvin scale goes the cooler the light looks. To mimic daylight and have a high level of light go for between 5000-6000K.\nCRI stands for color rendering index which simply means a measurement of how true the color of an object is under a bulb’s light. The CRI scale ranges from 0 – 100 with 100 having the highest level of color rendering ability. Secto Design lamps have a CRI of about Ra80 to provide a high enough level of CRI but to also allow for warm and pleasant lighting.\nThe unit used to measure CRI (Color Rendering Index), the higher the value the more natural the color of the objects placed under the light will be.\nLight distribution curve of Kontro 6000.\nPhotometric curves illustrate how the light beam will take shape, for example, is the beam going to be narrow or wide, symmetric or asymmetric etc. This is important to understand how much light one will have from a lamp that shines on, for example, a dining room table.","domain":"optical_engineering"}
{"url":"https://altonmurphy.co.uk/eye-wear/lenses/","date":"2020-12-01T04:44:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141652107.52/warc/CC-MAIN-20201201043603-20201201073603-00005.warc.gz","language_score":0.9118504524230957,"token_count":717,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__117888739","lang":"en","text":"Once you have your prescription and chosen your frame, our dispensing team that consists of qualified dispensing opticians and skilled optical advisor’s who are highly trained in assessing individual customer requirements, will take you through our range of bespoke and custom-fit lenses, which features single vision, bifocals or varifocal lenses.\nWe can provide lenses that are thin, lightweight, scratch resistant and anti-reflective, and if you are sensitive to the sun’s glare, we can provide you with light sensitive lenses (Transitions) that change colour according to light conditions.\nHoya and Kodak manufacture the majority of our lenses, by using their expertise and precision in manufacturing techniques, you are guaranteed a high quality lens.\nBy having an anti reflection coating on your lenses, you will dramatically reduce glare from driving at night, computer screens, and cosmetically improve the look of your glasses. Why not upgrade this with a hydrophobic and oleophobic coating, allowing water to run off the lens easily, and to reject grease and general dirt, making your lenses much easier to clean? Call in for information on View Protect Hi-Vision Long Life Coatings.\nWe have a wide variety of different colour tints for all lenses, from gradual tints to full tints. Brown, grey and green are best for sunglasses. Blue, pink and yellow are also available.\nPolarised lenses dramatically reduce glare, improving your vision in very sunny conditions. A polarised lens is ideal for driving on wet roads or for sports such as fishing, skiing and sailing.\nChanging light conditions occur frequently, and for people who are sensitive to glare, transition lenses are the perfect solution. Transition lenses adapt to light conditions, giving you comfortable vision in bright light. Indoors, the lenses are virtually clear, outside they quickly darken in sunlight, giving you 100% UV protection.\nA scratch resistant coating or hard coat protects the lens surface from scratches, so your lenses are less likely to be damaged. The extra protection prolongs the life of the lens whilst providing clearer vision.\nThin & lite lenses are a great solution for people with higher prescriptions, allowing greater comfort and an enhanced cosmetic appearance, enabling you to have a wider range of frames to choose from.\nVarifocals, or progressive lenses as they are sometimes referred to, combine both distance and reading prescriptions into one lens, giving comfortable, sharp vision at all distances, allowing the wearer the convenience of one pair of glasses for all purposes.\nThere are various designs of varifocals on the market, and the technology behind the lenses is constantly improving. The new generation of varifocal lenses is known as freeform technology. The freeform process allows lens designers to calculate and manufacture the most accurate lens possible. Wearers benefit from lenses that have the highest degree of optical accuracy and a considerably wider focused viewing area.\nWe are pleased to offer you our own brand Free Form Varifocal Technology. Please call in for more information or if you require a Varifocal consultation please contact your nearest branch for a consultation.\nWe will remain open through ” Fire break ” lock down And will be prioritising emergency eye care – Please […]\nCamau i’ch cadw yn saff a chanllawiau ar wneud apwyntiad Er mwyn eich gwarchod mae camau diogelwch ychwanegol mewn lle. […]","domain":"optical_engineering"}
{"url":"https://paquerettes-paris.com/en/produit/polarized-sunglasses-eleonore/","date":"2020-10-25T14:01:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107889173.38/warc/CC-MAIN-20201025125131-20201025155131-00089.warc.gz","language_score":0.9131430387496948,"token_count":306,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__149748762","lang":"en","text":"The sunglasses of these glasses are polarized and polycarbonate. They ensure you a high protection against the sun’s rays.\nPolarized sunglasses, what is it?\nThe light is reflected on the shiny surfaces: sea, road … This phenomenon generates parasitic reflections that cause discomfort and visual inaccuracy, with or without glasses. A polarizing lens has a filter that suppresses these parasitic reflections. Polarizing glass blocks polarized light and only passes light carrying information. Thus, it improves visual acuity by allowing a better reading of the information that reaches the eye.\nWhat is polycarbonate lenses?\nPolycarbonate is the latest generation material that is replacing more and more glass and plastic. Polycarbonate is a synthetic material that has the peculiarities of being very resistant to shocks and very light. It filters 100% of UV.\nThe sunglasses polarized Pâquerettes Paris come with their felt cover, you can take them everywhere with you.\n▸ Polycarbonate glasses\n▸ Adjustable pads for more comfort\n▸ Polarizing glasses\n▸ Branches with curved ends for a perfect fit\n▸ Personalized glasses by hand for more details\n▸ Designed in France\nDimensions of the sunglasses:\n– length: 14.5 cm\n– height: 5 cm\n– bridge *: 2.5 cm\n– branches: 10 cm\n* We call bridge the part that connects the two glasses and is located above the nose of the wearer of the sunglasses","domain":"optical_engineering"}
{"url":"https://www.shoppasite.co.uk/products/mobile-phone-camera-lens-kit-phone-lens-with-fish-eye-lens-macro-lens-wide-angle-lens-compatible-with-iphone-samsung-huawei-ipad-sony-htc-lg-etc-black","date":"2022-05-17T01:32:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662515466.5/warc/CC-MAIN-20220516235937-20220517025937-00461.warc.gz","language_score":0.8220449686050415,"token_count":302,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__272306408","lang":"en","text":"Mobile Phone Camera Lens Kit Phone Lens With Fish Eye Lens +Macro Lens + Wide Angle Lens Compatible With iPhone,Samsung,Huawei,iPad,Sony,HTC,LG,etc (Black)\n- MACRO LENS:It can be taken picture of a tiny object clearly in the details. The usage of Marco lens is that it needs to be photographed close to the objects\n- FISH EYE LENS:It supports to see the image with the range of 180 degrees from the right to the left on your phone, enjoying unrealistic fish-eye world of images.\n- WIDE ANGLE LENS: It is suitable to take picture of large ranges, such group of people, buildings and landscape.\n- COMPATABILITY:it has a general clip and compatible with most types of mobile phones:iPhone, iPad Air, Tablet PC, Laptops, Samsung Galaxy, Huawei,Blackberry Bold Touch, Sony Xperia, Motorola Droid and Other Smart Phones\n- NOTE:.Wide-angle lens and macro lens are twisted together. When you use macro lens,please turn the wide-angle lens down and use the macro lens on the cilp independently.When you use wide-angle lenses, the wide-angle and macro lens need to be twisted together.\nPackage Dimensions: 6.2 x 3.8 x 1.1 inches","domain":"optical_engineering"}
{"url":"https://wolte15.org/presenter/miriam-vitiello/","date":"2023-06-07T18:10:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654012.67/warc/CC-MAIN-20230607175304-20230607205304-00086.warc.gz","language_score":0.927416205406189,"token_count":515,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__250324896","lang":"en","text":"Prof. Miriam Serena Vitiello obtained her PhD in physics at University of Bari in 2006. From 2006 to December 2009 she was a Post-Doctoral Research assistant at the University of Bari. Since July 2010, she is group leader at the National Enterprise of Nanoscience and Nanotechnology and at the Nanoscience Institute of the National Research Council (CNR). Since 2015 she is Adjunct Professor of Condensed Matter Physics at the Scuola Normale Superiore.\nSince 2017 she is Director of Research at CNR.\nThe THz photonics and optoelectronics group of Prof. Vitiello focuses on the design, development and applications of THz quantum cascade lasers; the development of THz nanostructured detectors based on semiconductor nanowires, 2D materials and vdW heterosctructures; far-infrared metrology; graphene-based photonics; near-field THz miscroscopy.\nProf. Vitiello is member of the Scientific council of the National Institute of Metrology, of the CNR Department of Physics and technology of the Matter, of the CEITEC center (Czech Republic) and Fellow at the University of Regensbug (Germany).\nProf. Vitiello has received the starting grant FIRB “Future in Research” from the Italian ministry of education and research, the ERC Consolidator Grant from the European Research Council, three EU-FET open projects, an EU ITN project, the Balzan research projects, three national research grants, and she coordinates the THz working group in the graphene flagship.\nFor her research activity she was awarded with the Friedel-Volterra Medal from the Italian and French Physical Societies (2021), the Gold Medal from the Pontificia Academy of Science (2018), the Sapio Research and Innovation award (2018), the International research award Guido Dorso (2016), the SPIE early career award (2015) optoelectronic and photonics prize “Sergio Panizza” of the Italian Physical Society (2012), an International Scientific Author Award (USA, 2005) and 2 National Young Author Awards (2004; 2005).\nShe is member of the programme committee of more than 30 key international conferences in the field of photonic devices. She is co-author of more than 200-refereed papers on international journals, holds 1 patent and delivered more than 100 invited talks (including plenary talks) at international conferences.","domain":"optical_engineering"}
{"url":"http://m9sj.com/index.html","date":"2023-09-25T09:35:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508959.20/warc/CC-MAIN-20230925083430-20230925113430-00491.warc.gz","language_score":0.9542078375816345,"token_count":198,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__136999783","lang":"en","text":"Foshan Yuejia Electronic Technology Co., Ltd. is a professional technology company specializing in the R&D, production and sales of electronic ballasts for ultraviolet lamps. The company has several senior R&D engineers with 20 years of experience in the same industry. The company's products cover all electronic towns in the UV ultraviolet industry. Ballast series products, as well as special light source electronic ballast series products.\nAfter years of R&D and accumulation, our company has broken through the technical fortress of the industry and realized the patented products with independent intellectual property rights, which have been widely promoted and applied in the ultraviolet lamp industry, and have been highly recognized by the industry.The company's products have obtained the national patent certificate, and obtained the high-tech product certificate of Guangdong Province.The company's products are used in the air purification ultraviolet industry, the water treatment ultraviolet industry, the small household appliance ultraviolet industry, and the environmental governance ultraviolet industry.","domain":"optical_engineering"}
{"url":"http://www.keybond.com.tw/product/orca-flash4-0-v3-digital-cmos-camera/","date":"2019-02-22T06:03:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247513661.77/warc/CC-MAIN-20190222054002-20190222080002-00459.warc.gz","language_score":0.800500750541687,"token_count":1384,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__34724274","lang":"en","text":"Calibrated for Quantitative Accuracy\nOur ORCA-Flash4.0 cameras have always provided the advantage of low camera noise. In quantitative applications, like single molecule imaging and super resolution microscopy imaging, fully understanding camera noise is also important. Every ORCA-Flash4.0 V3 is carefully calibrated… as a precision instrument must be. Our attention to this detail delivers outstanding linearity, especially at low light, and offers improved photo response non-uniformity (PRNU) and dark signal non-uniformity (DSNU) to minimize pixel differences and reduce fixed pattern noise. Each camera ships with a certificate providing the read noise and photoelectron conversion factor specific for that camera.\nFlexibility for Customized Data Control\nLike its predecessors, each ORCA-Flash4.0 V3 is capable of both USB 3.0 or Camera Link output. In addition, the ORCAFlash4.0 V3 offers data reduction through user-controllable look up tables (LUT) for 12 or 8-bit output. These two choices, combined with region of interest selection enable you to fine tune acquisition speed and image data requirements.\nPatented Tools for Advanced Imaging\nThe ORCA-Flash4.0 V3 includes our now patented, Lightsheet Readout Mode which takes advantage of sCMOS rolling shutter readout to enhance the quality of lightsheet images.\nWhen paired with our W-VIEW GEMINI image splitting optics, a single ORCA-Flash4.0 V3 camera becomes a powerful dual wavelength imaging device. In “W-VIEW Mode,” each half of the sensor can be exposed independently, facilitating balanced dual color imaging with a single camera. And this feature can be combined with the new and patented “Dual Lightsheet Mode” making simultaneous dual wavelength lightsheet microscopy a reality. And finally, the ORCA-Flash4.0 V3 is the perfect complement to our new W-VIEW GEMINI-2C dual camera, super resolution-quality, image splitting optics.\nFocus on the Relevant Data\nOur new “Enhanced Visualization Mode” was designed to help answer the question “Can I see it?” Many low light experiments, especially those that were previously imaged using EM-CCDs are now routinely accomplished—with better signal to noise, faster speeds and at far less expense—by sCMOS cameras. However, we sometimes miss the visual punchiness of EM-CCD images. Enhanced Visualization Mode pops the contrast of the displayed image, while\nsaving the sCMOS raw image data to disk.\nAnd sometimes our innate tendency to seek contrast can be a distraction. Even a few hot pixels in a time lapse or tracking experiment can divert our attention or our analysis from the real data. Enter our multi-level, user-selectable, hot pixel reduction. By applying a series of increasingly aggressive algorithms to detect noisy pixels, you can choose to eliminate these small but distracting elements. And since nobody appreciates having their data unexpectedly modified, the default setting for this hot pixel correction is off when you power up the camera.\nPowerful Triggering for Synchronization\nJoining a full complement of sophisticated triggering routines, our new Master Pulse timing generator allows the ORCA-Flash4.0 V3 to truly run the experiment. Performing functions that previously would have required an external pulse generator the ORCA-Flash4.0 V3’s Master Pulse has flexible timing delays built in. Powerful synchronization of multiple cameras and devices just became a lot simpler.\n|Quantum efficency||82 % (peak QE: @560 nm)|\n|Effective no. of pixels||2048 (H)×2048 (V)|\n|Cell size||6.5 μm×6.5 μm|\n|Effective area||13.312 mm×13.312 mm|\n|Full well capacity||30 000 electrons (typ.) *|\n|Readout speed||100 frames/s (Full resolution, standard scan, Camera Link) *\n40 frames/s (Full resolution, standard scan, USB 3.0, 16 bit) *\n53 frames/s (Full resolution, standard scan, USB 3.0, 12 bit) *\n80 frames/s (Full resolution, standard scan, USB 3.0, 8 bit) *\n|Readout noise||Standard scan (at 100 frames/s, typ.):1.6 electrons rms (1.0 electrons median)\nSlow scan (at 30 frames/s, typ.): 1.4 electrons rms (0.8 electrons median)\n|Cooling method||Peltier cooling|\n|Cooling temperature||Forced air (Ambient at +20 ℃): -10 ℃\nWater (+20 ℃): -10 ℃\nWater (+15 ℃): -30 ℃\n|Dark current||0.06 electrons/pixel/s (Air Cooled to -10° C) (typ.)\n0.06 electrons/pixel/s (Water Cooled to -10° C) (typ.)\n0.006 electrons/pixel/s (Water Cooled to -30° C) (typ.)\n|Dynamic range||37 000:1 (typ.)|\n|Interface||Camera Link / USB 3.0|\n|A/D converter||16 bit / 12 bit / 8 bit|\n|Readout Modes||Normal Area, Lightsheet, W-VIEW Mode, Dual Lightsheet|\n|Master Pulse Generator (Pulse Modes)||Internal Sync, Start Trigger, Burst|\n|Master Pulse Generator (Pulse Interval in 1 μs increments)||10 μs to 10 s|\n|Hot Pixel Correction||Off, Low, Medium, High|\n|Dark Signal Non-Uniformity (DSNU)*||0.3 electrons rms|\n|Photo Response Non-Uniformity (PRNU) at half level of full light range (15,000 electrons)*||0.06 % rms|\n|Photo Response Non-Uniformity (PRNU) at low light level (700 electrons)*||0.3 % rms|\n|Linearity error, full light range (EMVA 1288 standard)*||0.5 %|\n|Linearity error, low light range (< 500 electrons signal)*||0.2 % / Less than approx. 1 electron absolute error|\n|On-camera Connectivity||Both USB 3.0 and Camera Link**|\n|V2 Compatibility Mode (for use with legacy software)||Yes|","domain":"optical_engineering"}
{"url":"https://sc22.mghpcc.org/project/color-changing-objects/","date":"2024-04-25T10:41:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297292879.97/warc/CC-MAIN-20240425094819-20240425124819-00542.warc.gz","language_score":0.9207026958465576,"token_count":178,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__174388686","lang":"en","text":"In this paper, we present a method she has been working on that makes 3D objects appear differently under different viewpoints. We accomplish this by 3D printing lenticular lenses across the curved surface of objects. By calculating the lens distribution and the corresponding surface color patterns, we can determine which appearance is shown to the user at each viewpoint. We built a 3D editor that takes as input the 3D model, and the visual appearances, i.e. images, to show at different viewpoints. Our 3D editor then calculates the corresponding lens placements and underlying color pattern. On export, the user can use ray tracing to live preview the resulting appearance from each angle. The 3D model, color pattern, and lenses are then 3D printed in one pass on a multi-material 3D printer to create the final 3D object.\nVideo provided by CSAIL Alliances.","domain":"optical_engineering"}
{"url":"https://parrotsonjava.com/2015/05/29/first-pictures-of-the-intel-realsense-r200-development-kit/","date":"2023-06-06T15:37:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652959.43/warc/CC-MAIN-20230606150510-20230606180510-00688.warc.gz","language_score":0.9483919143676758,"token_count":198,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__220253927","lang":"en","text":"This week we’ve received an interesting package by Intel USA with the very new Intel RealSense F200 camera. We are really surpised how small the camera is. The camera is a longer range peripheral 3D camera, perfect for sensing the environment (for Windows and Android tablets, 2-in-1s, and more). The “R” in the cameras model name stands for “Rear” since it is best suitable using it while the camera is facing away from you (instead of the F200 camera which is facing frontally).\nThe camera has a range of 3-4 metres (inside a room) and a larger range out of doors. The key features of the camera are\n- 3D recording (faces, people, environment)\n- Depth camera\n- Face tracking and face recognition\n- Measuring in general\nWe are now waiting for the SDK to start our first projects with this tiny piece of high-tech.","domain":"optical_engineering"}
{"url":"http://cody3577qiablog.blogkoo.com/2-items-you-do-not-have-information-with-respect-to-lasik-eye-treatments-7760049","date":"2018-12-12T11:56:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823872.13/warc/CC-MAIN-20181212112626-20181212134126-00000.warc.gz","language_score":0.9501339793205261,"token_count":880,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__153825365","lang":"en","text":"2 Items You Do Not Have Information With Respect To LASIK Eye TreatmentsThe eye can be taken a look at with relative ease regarding both its function and its structure. A functional evaluation consists of the capability to move in the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be tested in numerous ways. The patient may be asked to determine illuminated letter or items of differing sizes on what is known as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in a number of methods. Stress within the eyeball is determined by a \"tonometer.\" In specific diseases, specifically in glaucoma, the tension in the eyeball is increased markedly.\nHowever, it should be well kept in mind that a patient with an eye problem might have other problems also. Often other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can inform the doctor and the client to troubles in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nOne's dependence on sight is highlighted when one faces a possible or short-lived long-term loss of this important sense. Hence, when corrective steps are sought, certain forms of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some people are bothered with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" look here Like its concrete counterpart, LASIK eye surgical treatment is another form of vision correction. The only difference is that with this type of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe primary function of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series find more information of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that individuals should know. Most likely, the main factor why this type of eye surgery has actually ended up being well accepted is since the majority of its cases had achieved success.\nNevertheless, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgery involves the operation of the retina, which is among the most delicate parts of the eye, most individuals say that the operation can be extremely risky.\nSimply puts, a simple error might almost trigger an person's lifetime blindness. It is essential to think about numerous factors prior to deciding whether LASIK eye surgery is the best corrective measure one has to go through.\n2. It is not a best treatment\nLASIK eye surgical treatment may correct your vision however it does not always imply that it can offer you a best vision. Even if analytical reports reveal that 70% of the patients might have 20/20 vision, this does not always imply they have perfect vision.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the perfect eye surgery the way many people see it\nOn the other hand, the examination of the structural part of the eye may be made in numerous ways. It needs to be well remembered that a patient with an eye problem might have other issues. Often other physical conditions are main and impact the eye as a consequence. The appearance of the eye can inform the doctor and the client to troubles in some disturbances of other parts of the body even prior to other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction.","domain":"optical_engineering"}
{"url":"http://syscomkorea.com/index.php/product/camera-link-interface-solution/fiber-optic-splitter/fcl-10str/","date":"2023-09-26T08:14:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510179.22/warc/CC-MAIN-20230926075508-20230926105508-00069.warc.gz","language_score":0.8853645920753479,"token_count":234,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__311900308","lang":"en","text":"Syscom Korea Co., Ltd, a leader in the market of pixel to pixel cabling solution, created Fiber Optics based Camera Link cable. Syscom Korea cabling solution will be a perfect choice for overcoming the problems of facility access, capital cost, distance, EMI, ESD and bandwidth. Camera Link is a high-speed camera/frame grabber interface designed for high performance vision applications. Compare that the other company’s Standard Camera Links is deliver signals to 10 meters or less, Syscom korea’s optical camera link cable can transmit signals up to 20km without electrical magnetic noise, flexibly respond to many applications requiring long distance image transmission between the camera and the frame grabber.\nThis product consists of plug and play modules with FCL-10S2T connecting to camera and FCL-10S2R connecting to the frame grabber(or PC) side. The FCL-10S2T receives, converts and sends out video data to fiber from the camera while FCL-10S2R receives the optical signals, converts them back into video data and sends to two frame grabbers.","domain":"optical_engineering"}
{"url":"https://www.mido.com/en/wmido/single/Al-and-Ro-will-present-its-latest-products-at-Mido/32437","date":"2022-11-29T09:16:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710690.85/warc/CC-MAIN-20221129064123-20221129094123-00540.warc.gz","language_score":0.9358792901039124,"token_count":391,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__271740491","lang":"en","text":"Al and Ro will present its latest products at Mido\nFebruary 12 2013\nSpotlight on multilayer lenses and the Kids line Al e Ro Design never ceases to amaze: after creating cool action drop and square eyewear models in non-allergic, brightly colored rubber, and proposing two types of lenses, mirrored and smoky, it is now launching two very important products: multilayer lenses and the KIDS line.\nThe special feature of the multilayer lenses is the \"Flash Green\" and \"Flash Orange\" mirroring methods, which add refinement as well as protection because they have been designed especially for particular light conditions. They reduce the perception of the luminous band that strikes the eye when light is reflected from snow, ice or clouds and also increase depth of vision and optimize peripheral vision, making them ideal for all outdoor sports! Al e Ro Design's multilayer lenses eyewear is the best product for people who like to enjoy their passion for sport in total comfort, thanks to safe vision and quality. Naturally, as always with Al e Ro Design, you'll be spoilt for the choice of colors! The drop model comes in ten hues, including transparent pink, military green, aviation blue, lime, beige, ice, mother-of-pearl white and dark brown, and the square model in seven: cobalt blue, coral pink, red, light blue, beige, black and lime.\nAbsolutely new products are dedicated to children: the KIDS line! Its \"mini\" drop model joins the extensive Al e Ro Design family to put a smile of the faces of children from 3 to 13. The 12 colors include light blue, coral pink, orange and apple green.\nOnce again, Al e Ro Design has demonstrated its rare ability to follow trends without forgetting the importance of wellbeing and practicality ... with an eye to the adults of tomorrow!","domain":"optical_engineering"}
{"url":"http://arlo1035dfjblog.blogkoo.com/two-factors-you-do-not-recognize-about-lasik-eye-treatments-7666027","date":"2019-01-16T01:52:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583656577.40/warc/CC-MAIN-20190116011131-20190116033131-00243.warc.gz","language_score":0.9565085768699646,"token_count":876,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__59305785","lang":"en","text":"Two Factors You Do Not Recognize About LASIK Eye TreatmentsThe eye can be examined with relative ease as to both its function and its structure. A functional examination consists of the ability to move in the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be evaluated in a number of methods. The patient might be asked to identify illuminated letter or things of varying sizes on exactly what is referred to as the Snellen chart.\nOn the other hand, the examination of the structural part of the eye might be made in several methods. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, especially in glaucoma, the tension in the eyeball is increased significantly.\nHowever, it needs to be well bore in mind that a patient with an eye problem may have other problems too. Typically other physical conditions are primary and impact the eye as a effect. The look of the eye can inform the doctor and the client to problems in some disruptions of other parts of the body even before other symptoms provide themselves.\nOne's dependence on sight is emphasized when one faces a possible or momentary irreversible loss of this essential sense. When restorative procedures are sought, particular kinds of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this type of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgery, the refractive errors in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade understood as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people must understand. Probably, the primary reason why this type of eye surgical treatment has become well accepted is due to the fact that many of its cases had been effective.\nNevertheless, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate portions of the eye, many people say that the operation can be extremely dangerous.\nSimply puts, a basic error might almost cause an person's life time loss of sight. It is important to consider lots of factors before choosing whether LASIK eye surgery is the right corrective procedure one has to undergo.\n2. It is not a perfect procedure\nLASIK eye surgery may correct your vision but it does not necessarily suggest that it helpful hints can provide you a best vision. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily mean they have perfect vision as well.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgery the way many people view it\nConversely, the evaluation of the structural part of the eye may be made in several methods. It needs to be well kept in mind that a patient with an eye problem might have other problems. Often other physical conditions are main and affect the eye as a consequence. The look of the eye can alert the client and the doctor to problems in some disturbances of other parts of the body even before other signs provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another type of helpful resources vision correction.","domain":"optical_engineering"}
{"url":"https://www.3xtec.ch/?lang=en","date":"2021-06-15T09:05:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487620971.25/warc/CC-MAIN-20210615084235-20210615114235-00059.warc.gz","language_score":0.8891815543174744,"token_count":189,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__141376881","lang":"en","text":"In age-related macular degeneration,\nthe visual aid VoiSee® moves image and text\nback into your field of vision.\nsmall and light\nVoiSee® is a small, lightweight and above all portable visual aid, with the magnification possibilities of a large stationary device which offers immediate support for age-related macular degeneration.\nWith a weight of less than 300g, VoiSee® is the perfect companion for everyday life. Thanks to its compact size, VoiSee® can be carried anywhere, anytime and fits easily in a handbag.\nJust as important as the attractive design, the compact size and the light weight is the very easy handling. VoiSee® has only a few simple controls.\nVisit us at the\nSwiss Medtech Expo SMTE\non the booth of GBN Systems GmbH Hall 2 / B2050\n+41 79 792 86 31","domain":"optical_engineering"}
{"url":"http://vovomart.com/goods-711.html","date":"2017-04-26T05:59:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121165.73/warc/CC-MAIN-20170423031201-00577-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9014742374420166,"token_count":258,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__74855299","lang":"en","text":"Item No. CS006\n1. A Monopod, also called a Unipod, is a pole used to help support cameras (or, less frequently, binoculars). It allows a still camera to be held steadier, allowing the photographer to take sharp pictures at slower shutter speeds, and/or with longer focal length lenses. When used by itself, it eliminates camera shake in the vertical plane. When used in combination with leaning against a large object, a bipod is formed; this can also eliminate horizontal motion.\n2. This Monopod is made to fold, when not in use, allowing to be easily transported and stored do to its light weight.\n3. Unlike a tripod, monopods cannot support a camera independently, limiting the shutter speed that can be used. They still allow lower shutter speeds than hand holding, and are easier to carry and use than a tripod.\n4. Include free carry case.\n5. This monopod is convenient to carry with\nMaximum Height: 1715mm\nMinimum Height: 550mm\nFolded Length: 550mm\nLoading capacity: 3kg\n|New 68'' Extendable Handheld Monopod for Sony Nikon Canon Camera +|\n|Gross Weight: 0.51kg|","domain":"optical_engineering"}
{"url":"https://redfinpolarized.com/pages/zeiss-rx-lens-request","date":"2024-04-20T19:04:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817674.12/warc/CC-MAIN-20240420184033-20240420214033-00621.warc.gz","language_score":0.8974507451057434,"token_count":390,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__169371290","lang":"en","text":"5 Reasons Why You'll want to consider Redfin's Outdoor Rx\nSuperior Outdoor Performance: Redfin Polarized's Outdoor Rx option, combined with Zeiss Sport lenses, offers unparalleled performance for outdoor activities. The lenses are specifically designed to enhance vision in bright sunlight, reduce glare, and provide excellent clarity, allowing customers to fully enjoy their outdoor experiences.\nCustomized Prescription Solution: Redfin Polarized understands the importance of personalized eyewear. By offering custom Rx lenses, customers can ensure that their specific vision needs are met. Whether you require single vision, bifocal, or progressive lenses, Redfin Polarized's customization options will provide the perfect fit for your prescription requirements.\nPremium Zeiss Lens Technology: Zeiss is renowned for its high-quality lens technology and innovation. By partnering with Zeiss for the Sport lenses, Redfin Polarized guarantees exceptional optical performance, durability, and visual comfort. You can trust the Zeiss Rx lens are the best sport lenses available on the market.\nGlare Reduction and Eye Protection: The Redfin Polarized Outdoor Rx option effectively reduces glare, a common problem during outdoor activities. By minimizing glare, customers can experience enhanced visual comfort, improved depth perception, and reduced eye strain. Additionally, the lenses provide 100% UV protection, safeguarding your eyes from harmful sun rays.\nQuick Custom 10-Day Free Shipping: Redfin Polarized understands the importance of timely delivery. With our quick custom 10-day turn around with free shipping, customers can receive their customized Rx lenses within a reasonable timeframe without incurring any additional shipping costs. This ensures a hassle-free shopping experience and prompt delivery of your eyewear.\nRedfin Polarized has a proven track record of customer satisfaction with positive reviews and testimonials from satisfied customers who have chosen the Outdoor Rx option with Zeiss Sport lenses. You will experience the same trust and credibility of the Redfin team others have.","domain":"optical_engineering"}
{"url":"https://3oneseven.com/beautiful-faces/","date":"2017-06-26T15:37:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320823.40/warc/CC-MAIN-20170626152050-20170626172050-00215.warc.gz","language_score":0.8938090801239014,"token_count":430,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__200810416","lang":"en","text":"The ratio of the subject size on the film plane (or sensor plane) to the actual subject size is known as the reproduction ratio. Likewise, a macro lens is classically a lens capable of reproduction ratios of at least 1:1, although it often refers to any lens with a large reproduction ratio, despite rarely exceeding 1:1.\nApart from technical photography and film-based processes, where the size of the image on the negative or image sensor is the subject of discussion, the finished print or on-screen image more commonly lends a photograph its macro status. For example, when producing a 6×4 inch (15×10 cm) print using 135 format (3.6×2.4 cm) film or sensor, a life-size result is possible with a lens having only a 1:4 reproduction ratio.\nOrdinary lenses can be used for macro photography by using a \"reversing ring.\" This ring attaches to the filter thread on the front of a lens and makes it possible to attach the lens in reverse. Excellent quality results up to 4x life-size magnification are possible. For cameras with all-electronic communications between the lens and the camera body specialty reversing rings are available which preserve these communications. When used with extension tubes or bellows, a highly versatile, true macro (greater than life size) system can be assembled. Since non-macro lenses are optimized for small reproduction ratios, reversing the lens allows it to be used for reciprocally high ratios.\nbeautiful face Gallery\nvector woman face\nOlivia Wilde face\nLiv Tyler face\nKate Moss face\nface vector lips\ncolor paint over face\nExtending the distance between the lens and the film or sensor, by inserting either extension tubes or a continuously adjustable bellows, is another equipment option for macro photography. The further the lens is from the film or sensor, the closer the focusing distance, the greater the magnification, and the darker the image given the same aperture. Tubes of various lengths can be stacked, decreasing lens-to-subject distance and increasing magnification. Bellows or tubes eliminate infinity focus.","domain":"optical_engineering"}
{"url":"https://uasatucla.org/wiki/subsystems/vision/overview","date":"2019-05-21T18:02:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256494.24/warc/CC-MAIN-20190521162634-20190521184634-00200.warc.gz","language_score":0.8206233382225037,"token_count":141,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__166088002","lang":"en","text":"System for performing identification using input from onboard cameras\nWhat We Do\nThe computer vision subteam is responsible for developing a system to image the search area designated by the AUVSI SUAS competition and use computer vision algorithms to localize and classify objects of interest to be sent to the ground station front-end and the competition Interoperability server for scoring.\n- 2017-2018 Vision System: information about the vision system we developed for the 2018 AUVSI SUAS competition.\n- UAS at UCLA Target Generator: how to use our custom target generator script.\n- Vision Database: how to run and interface with the vision database\n- Running the Pipeline Coming Soon!\n- Image Processing","domain":"optical_engineering"}
{"url":"http://www.loocklaserlab.com/photoacoustic","date":"2019-10-21T08:22:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987763641.74/warc/CC-MAIN-20191021070341-20191021093841-00391.warc.gz","language_score":0.9256275296211243,"token_count":229,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__137282834","lang":"en","text":"Photoacoustic Detection of Trace Contaminants\nWhen pulses of light energy absorbed by a sample are converted rapidly into heat, a sound wave can be produced through periodic thermal expansion. The intensity of the sound wave directly relates to the amount of absorber in the sample. Since the signal is produced directly from the absorber, as opposed to inferring it from the absence of signal (as in absorbance spectroscopy), it is well-suited for measuring trace contaminants.\nTypically, this sound wave is recorded with a sensitive microphone. Impressive detection limits have been obtained, making photoacoustic techniques popular in trace gas detection. In our lab, we use a fiber Fabry-Perot (FFP) cavity in conjunction with the Pound-Drever-Hall (PDH) technique as an optical microphone to record the sound wave.\nWe have previously used this method to detect analytes in microfluidic devices and in capillary electrophoresis. Recently we use acoustic resonators such as a wineglass or cantilever beams to further amplify the signal.\nRed wine excited with a 445 nm laser","domain":"optical_engineering"}
{"url":"http://blue-revo.info/lessons-learned-about-25/","date":"2021-04-13T11:03:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038072180.33/warc/CC-MAIN-20210413092418-20210413122418-00623.warc.gz","language_score":0.9542117714881897,"token_count":677,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__255481249","lang":"en","text":"In the world of thermal imaging, a thermal scope is a gadget used for thermal discovery. By describing this as a thermal cam, it is suggested to provide a computerized means of identifying temperature levels. Infrared light is the various other major element of this technology. There are several differences in between the two though, including the techniques of discovery and also the equipment required for this application. It is made use of in the military as well as industrial sectors for every little thing from tool views to security devices. On a somewhat much deeper level, a thermal scope in fact receives a thermal picture with a lens on its surface. The lens sends this thermal photo to a detector, which lies before the objective. The detector utilizes a high resolution scanner to identify the pictures which are after that presented on a computer screen. This screen supplies the individual with a high resolution picture of the target items and thus it is capable of giving a clear as well as crisp photo that is usually much easier to translate than a normal cam. By checking the screen, the thermal scope likewise spots any kind of roaming light that may have been reflected off the target things and this is utilized for more analysis on the image. The image created by the thermal extent is in real time and is conveniently flexible relying on the needs of the customer. Normally, a user will make use of a small laser projector to brighten the target area as well as the scanner and also the objective lens at the same time. In doing so, both the scanner and also the objective lens are scanned at the same time. This check of the whole location produces a hd picture as well as is therefore a form of optical zoom. Other optical zoom techniques include electronic zoom and also monocular zoom. Optical zoom is often required in thermal extents due to the fact that the distance to the target beyond of the rangefinder is a lot bigger than the range to the target on the contrary side of the rangefinder. If the rangefinder reveals the target as being at infinity, after that the thermal scope would reveal the target at all ranges up to infinity. Hence, thermal extent may not be able to give a clear photo of the target at close range. This situation will arise if one needs to make a chance at lengthy variety while the optical zoom holds. A thermal extent can eliminate this problem by giving a much clearer picture of the target at every suitable distance. Thermal tool sights are made use of for searching by law enforcement agencies for the discovery of hidden weapons. It is ideal for use by these companies when it pertains to night procedures. For instance, when handling lawbreakers that are hiding behind items such as trees as well as structures, it makes excellent feeling to use this modern technology. It makes it possible for seekers to eliminate a possible risk without needlessly putting their lives in jeopardy. Night vision ranges and also thermal scope can both be adjusted to various sizes allowing the customer to concentrate on a certain section of the electro-magnetic spectrum for better precision. Some ranges likewise have features such as crosshairs, which makes focusing on a pet or body less complicated. However, it is advised that a person contrasts the different versions and also scopes before opting for any type of particular kind of device. It is additionally recommended to examine whether the thermal range has any evening vision abilities. While hunting during evening, thermal scopes are the most ideal devices.","domain":"optical_engineering"}
{"url":"https://renoun.com/collections/clothing/products/julbo-x-renoun-cyrius-goggle","date":"2023-12-05T11:29:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00208.warc.gz","language_score":0.8677096366882324,"token_count":479,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__165506468","lang":"en","text":"From the French Alps, we partnered with France-based Julbo to bring you the best lens technology for your eyes. Julbo's patented REACTIV lenses adapt to the elements—just like out skis. It's a match made to be.\nJust like our skis, The REACTIV lenses from Julbo adapt to conditions. Bluebird day? The lens automatically adjusts in real-time and darkens to match ambient light. Storm rolling in? The lens automatically adjusts to let in more light. Gone are the days of carrying multiple lenses in your pocket.\nThe CYRIUS was designed around a cylindrical photochromic lens that benefits from Julbo's frameless construction and REACTIV lens technology to offer a high-end goggle for skiers and snowboarders.\nWherever you are skiing, the CYRIUS goggle offers a super-wide and unobstructed field of vision so you can stay concentrated nailing your line. The REACTIV photochromic lens adapts to the UV lighting conditions in real time and is combined with our proprietary anti-fog coating for perfect vision and total protection, no matter the weather. The wide and fully integrated strap is helmet compatible, keeping you and your equipment dialed in the mountains.\n- REACTIV Technology: Adapts to conditions—just like out skis.\n- Air Flow : Venting incorporated into the frame for good air circulation to prevent formation of fogging.\n- Anti-fog coating : The inner surface of the lens has an additional anti-fog coating.\n- Double adjustment strap : Two loops either side of the strap for symmetrical adjustment in the blink of an eye.\n- Dual Density Foam : Two layers of foam for optimum comfort and shock absorption with a soft-touch layer for softer contact with skin.\n- Extra-Wide Strap : An extra-wide strap for an assertive style and guaranteed grip.\n- Frameless construction: see your line with clarity\nOverstrap : Offset strap for compatibility with all types of helmet.\nAmazing peripheral vision and true light.\nNo more swapping out lenses\nBluebird sun to holy-smokes-its-absolutely-nuking-out with the same lens? Sign me up. Transition lenses for goggles seems like a no brainer to me!","domain":"optical_engineering"}
{"url":"https://www.eksposure.com/gobe-filters/","date":"2022-06-28T12:24:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103516990.28/warc/CC-MAIN-20220628111602-20220628141602-00340.warc.gz","language_score":0.9342124462127686,"token_count":1564,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__284296164","lang":"en","text":"Are you looking for the best Gobe filters for photography?\nThat‘s great, because one thing is certainly clear:\nWhat makes these lens filters our favorite is their quality-to-price ratio.\nWhat is more, this brand is inspired by nature and buying it funds local communities to plant 5 trees in areas that are affected by deforistation.\nIn this Gobe filters review, we are going to look over the best (and cheap) UV, ND and Circular Polarizing (CPL) lens filters.\n- Gobe UV Filters Review\n- Gobe ND Filters Review\n- Gobe CPL Filter Review\n- What are Gobe filters?\n- Final Remarks\nGobe UV Filters Review\nLet’s start our Gobe filter reviews with the most basic and widely used Gobe UV filters.\nUV filters are no longer used to take care of the ultraviolet light.\nRather, they are used as protective filters of our lens glass by acting as a barrier to protect our lenses from any debris, twigs, rocks, or sticky fingers.\nYou can use these filters for any – Canon, Sony, Nikon lens other camera lenses you have.\nGobe UV Filters are perfect for outdoor shoots to protect your lenses from any damage that might happen on-field.\nGobe’s German and Japanese glass filters are phenomenal as they do not affect the quality of the photos in the slightest. They are incredibly durable and can withstand everything you can imagine needing them to.\nGobe UV Schott 16-Layer Ultra Violet Filter\nThe Gobe UV Schott filter is nicely engineered with a reassuringly crisp gnarling and thin profile and contains a multi-resistant coated ultraviolet filter, which helps reduce light reflections and protects your lens from any kind of dust, moisture, and scratches.\nHence, you can adjust the color contrast and saturation of images. The 16-layer multi-coating provides maximum flare protection and the UV filter is highly effective for preventing UV lights from entering your lens and reduces blurring.\nIt also provides extra assurance in case of accidental drops. The high-quality German Schott B270 glass provides top-level light transmittance, increased optical clarity, and color fidelity. It comes in beautiful packaging with a lens cloth given with each filter.\nPros & Cons\nGobe ND Filters Review\nThe main Gobe neutral density filters that are a must to try:\nThe good news?\nYou can buy a kit which contains all of them.\nThese variable ND filters allow you to slow scenes down such as water and create dramatic effects, with limited to No-color-cast.\nThat’s exactly what you want with an ND filter.\nThe fixed ND filters are my personal favorite as they are built to perform a specific task such as cutting out a specific amount of light but that doesn’t make the variable ND’s any less favourite because they also do a fantastic job.\nGobe Lens Filter Kit containing ND8, ND64, ND1000\nWhile we’ve never really been fans of variable ND filters mainly because they were a little too pricey but Gobe has upped its game with their ND filters that are the highest standards in quality while remaining reasonably priced.\nTalking about the Gobe Lens Filter kit, This excellent camera lens filter set includes a lens cap, a cap keeper, UV and CPL filter NDs including an ND8 (3 stop), ND64 (6 stop), and ND1000 (10 stop) filters and a filter case.\nHigh-quality, Japanese optical glass with 16-layer nano-coating that provides neutral color balance, reduces lens flare, removes ghosting, and projects against scratches, dirt, and grime. You can mount these filters on your camera lens permanently because these are high-quality filters and create a minimum impact on the quality of the image.\nPros & Cons\nGobe NDX Variable ND Filter\nInstead of buying a lot of fixed ND filters, you can choose a variable ND filter.\nGobe NDX variable ND lens filter comes with a rotating ring between ND2 and ND400 and cuts out a fixed amount of light intake from 1 to 8.66 f-stops without affecting color balance which easily makes it one of the most versatile and easy-to-use options available in the market right now.\nIt is designed with a premium Japanese optical glass with 8-layer nano-coating that helps reduce vignetting, provides a neutral color balancing, and removes ghosting when you are shooting from wide angles.\nIt also comes with a round metal case that is slightly larger than the filter( absolutely better than the crappy plastic cases provided by other filter suppliers) and a Gobe cleaning cloth\nExcellent value for money, Gobe NDX Variable ND Lens Filter is well made and will bring the color and clarity back to your outdoor videos and images so you can create stronger depth-of-field and motion blur effects.\nPros & Cons\nGobe CPL Filter Review\nThe effect given by their CPL filters in post-processing is second-to-none.\nThey can take the glare off of water if used at the right angles. CPL filters also do a phenomenal job of boosting contrast and colors in other landscapes as well.\nGobe Circular Polarizing (CPL) Filter (3Peak)\nThe Gobe Circular Polarizing (CPL) Lens Filter comes from one of the most well-regarded filter makers Gobe, known for its best quality filters in the most reasonable pricing, with easy gripping on the outer rim and more than one thread sizes to choose from.\nIt brings premium German Schott B270 optical glass and 16 layers of nano-coating for better light transmission and reduction of flaring and ghosting. The surface of the CPL filter is also stain-resistant and water-repellent. The consciously designed magnalium rims of this filter are double-threaded and slim to avoid vignetting.\nThis filter is thin enough to fit nicely on a wide-angle lens without any trouble. The company also promises to plant five trees for each filter you buy. Low cost, high performance, reliable company, 5 new trees in the world – that’s what makes it a great offer.\nPros & Cons\nWhat are Gobe filters?\nThe Gobe is a project of two Australian guys who took a leave from their studies to travel around the world taking pictures and having fun.\nThey came up with the idea of producing lens filters and saving the planet at the same time upon observing the dramatic deforestation in some parts of the world and so their venture began.\nWhat intrigued me about their filters was that for every filter you buy, you help plant 5 trees in some parts of the world.\nTheir filters are available in three different qualities:\nLenses, are one of the most important parts of the camera gear as they can make or break the deal depending on the quality. You should always look for lens filters that not only accentuate shots but also protect the lens.\nWith hundreds and thousands of pricy lens filters out there, I wanted to go for something that gives a good quality-to-price ratio so I decided to give this new kid in the block a try. And Gobe filters are worth the shot.\nHigh quality, sensible pricing, and low profile but sincere environmental policy, you won’t get a more suitable filter option at such a low price.","domain":"optical_engineering"}
{"url":"http://en.sanyetx.com/news-show-164.html","date":"2020-05-27T05:29:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347392141.7/warc/CC-MAIN-20200527044512-20200527074512-00368.warc.gz","language_score":0.9261465072631836,"token_count":584,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__212552676","lang":"en","text":"Demand for optical fiber continues to grow and the market will expand further in the future\nSubordinate Classification：News CenterRelease Time：2017-08-30\nAnalysts at Market Research Institute forecast that 2017-2021 years, the global optical fiber market will be compound annual growth rate of 11.45%. A major trend in the market is the emerging cloud computing. Cloud is a virtual remote data center, without any infrastructure costs, can store, manage and retrieve data or resources. Clouds can be divided into three categories: public, private, and mixed.\nAnother major driver of the market is the growing demand for enhanced network bandwidth. The growth of Internet bandwidth is affected by many factors, such as the increase in disruptive technology, which helps to change bandwidth usage according to the use of networks and mobile computing devices. The main driver of the smartphone industry is the deployment of next-generation wireless networks, such as 3G, 4G and 5G, because these technologies offer wireless connections that are equivalent to home broadband connections. In addition, the increasing popularity of smart phones, increasing network traffic, but also to promote market development.\nAn optical fiber is an elastic transparent fiber made of drawn glass or plastic, used for light transmission at both ends of an optical fiber. Products are widely used in optical fiber communications, allowing longer distances and higher bandwidth than wires and cables. Instead of using metal wires, the use of fiber optic cables enables signals to be transmitted with less loss.\nAccording to a new report by market research firm Zion market research, the value of the global optical fiber market will increase from $2 billion 750 million in 2016 to $3 billion 720 million in 2022, with a CAGR of just over 5.2% during the year.\nThe main factors contributing to the growth of the optical fiber market are the growing demand for fiber in various fields, such as telecommunications, private data networks and others. Growth demand for high-speed Internet is also stimulating demand in the optical fiber market. However, the high cost of raw materials and complex manufacturing processes are inhibiting market growth. Over the next few years, the growth of remote sensing technology that allows data transfer without physical media will further boost the market.\nBy 2022, North America and Europe are expected to show steady growth. In view of the increasing use of new telecommunications technologies, such as fiber access applications and 4G mobility, the Asia Pacific region is expected to show significant growth. Therefore, due to the increased use of 3G/4G data, the Asia Pacific network operators will continue to grow in demand for fiber.\nAn important supplier of global fiber market including Prysmian, Australia, Finolex cable, optical fiber communication industry, Corelle, Street, optical fiber and cable Fujikura ltd.. High initial investment and maintenance costs will limit the entry of new participants into the market.","domain":"optical_engineering"}
{"url":"https://dormis.io/products/450-daytime-blockers","date":"2022-10-02T20:19:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337339.70/warc/CC-MAIN-20221002181356-20221002211356-00203.warc.gz","language_score":0.8903257250785828,"token_count":287,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__253987980","lang":"en","text":"This is our classic frame, with 3 tints to choose from.\nPer Diem (yellow) - designed for daytime, in front of blue lit screens like laptops or under artificial blue lighting, such as offices with a lot of unnatural light, the Per Diem lens blocks 50% of the blue light spectrum, allowing you to receive some blue while blocking the most important parts, so that your sleep clock understands it is daytime.\nThese should not be worn in the presence of natural sunlight.\nSoíree (orange) - Our most popular tint, the Soíree lens allows you to enjoy a night on the town and avoid the light that would otherwise interfere with sleep. This lens blocks 100% of blue light, from 400-500 nm, giving you sound sleep protection while the amber tint allows for the visual functionality you may require in the earlier stages of the night.\nBecause they block all of the blue light spectrum, the Soíree lens can be worn up until bed time.\nDe Nocti (red) - the ultimate nighttime glasses, the De Nocti lens not only blocks all of the blue light spectrum but 90% of the green spectrum too which affects sleep too, although not to the same degree as blue light.\nWorn primarily in the last 2 hours before bed, the dark red tint gives your eyes a luscious tone that's similar that which you only see with fire.","domain":"optical_engineering"}
{"url":"http://wardmay-cctv.en.made-in-china.com/product/QjTEvxmUotWp/China-360-Panoramic-Fisheye-Camera-Ahd-Camera-for-CCTV-Surveillance-System.html","date":"2017-08-19T09:13:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886105334.20/warc/CC-MAIN-20170819085604-20170819105604-00450.warc.gz","language_score":0.721241295337677,"token_count":999,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__188292872","lang":"en","text":"360 Panoramic Fisheye Camera Ahd Camera for CCTV Surveillance System\n|FOB Price:||US $52-55 / Piece|\n|Min. Order:||1 Piece|\n|Min. Order||FOB Price|\n|1 Piece||US $52-55/ Piece|\n|Production Capacity:||20000 Per Month|\n|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|\n- Model NO.: WDM-AHD360DR3H\n- Style: Dome Camera\n- Sensor: CMOS\n- Kind: Fisheye Fixed Lens\n- Feature: High Definition, Mini Size, Vandal-proof\n- Sensor Size: 1/3 inch\n- Chip: 1/3\" CMOS Sensor\n- Power Supply: DC12V\n- Signal System: PAL/NTSC\n- IR Cut: with\n- Hlc: Support\n- Trademark: WARDMAY\n- Origin: Shenzhen of China\n- Technology: Fisheye Type\n- Type: CCTV Camera\n- HDMI Format: 960P\n- Certification: CE, FCC, CCC, RoHS, SGS\n- Effective Distance: 10-30m\n- Remote Control: Without Remote Control\n- Resolution: 1280(H)*960(V), 1.3megapixel\n- IR Destance: No\n- Video Standard: Ahd and Cvbs Standard\n- Lens: 360 Degree Fisheye 3.0 MP Lens\n- Shutter Speed: 4/25s-1/45,000s\n- Transport Package: Natural Packing\n1.3MegaPixel Vandalproof and waterproof Dome HD AHD 130 Degree Fish Eye Camera\n1,Using the high performance sensor, image is clear and delicate;\n2,Analog HD 960P@AHD-M video output;\n3,The transmission distance over 500 meters;\n4,Can access to many brands AHD DVR;\n5,Support the ultra low illumination;\n6,Support automatic electronic shutter function, adapt to different monitoring environment.\n|360° Panoramic Vandalproof AHD Dome Camera|\n|System||High performance NVP2431H ISP processor|\n|Sensor||1/3\" CMOS Sensor|\n|Output resolution||1.3 MP :1280(H)×960(V)|\n|Effective Pixel||PAL : 1280*960@25fps|\n|NTSC : 1280*960@30fps|\n|Video Standard||AHD and CVBS Standard|\n|Video Output||1CH AHD HD/CVBS Standard Singal Output(Switchable)|\n|Max Transmission Distance||Common 75-3 cables can be up to 500m|\n|Lens and IR|\n|Lens||360 degree fisheye 3.0MP Lens|\n|IR distance||3pcs ir array leds, 30m ir distance|\n|White Balance||Auto White Balance|\nour company culture:\nShenzhen Wardmay Technology Co., Ltd as a professional CCTV cameras suppliers in China established in 2010 specializing in research, manufacture and distribution of 360 panoramic camera, AHD camera, 4X Motorized AHD/IP cameras, Starlight Day & Night Color Image CCTV/IP cameras, Professional License Plate Recognition LPR camera for parking lot and highway monitoring, 3G/4G ip camera, 2KM Night Vision Laser IP Camera, HD-SDI camera, analog camera, Rear View Car/Bus/Truck Camera, High Speed, Super WDR, Hidden/Mini Camera, DVR/NVR Kits, cctv tester, cables, connectors, housing, bracket, sound monitor, power supply, video balun and other accessories based on good quality and competitive price, so glad to service for you.\nWhy Choose Wardmay Technology LTD ?\n1) As a professional manufacturer, We have Customized high-end Cabin Camera products for our clients with two pins DC connectors.\n2) Strong technologies and R & D term in China.\n3) Strict QC: Every product which sent to customer will be tested for 48 hours,24hours half products,and 24hours full product testing. The RMA rate is almost Zero.\n4) We take responsibility: Every issue about our products will get our highly attention.We will find a satisfied solution for you in a very short time. If the problem is caused by our company,we will take responsible for all the losses.\n5) Fast delivery: usually within 2-7 business days since payment arrived.\n6) Professional technical support in before sale and after sale.\nWelcome to test our sample!\nIf you have any question, please contact us without hesitation!","domain":"optical_engineering"}
{"url":"http://orbureforha.tk/technology/led-tv-technology-pdf-11166.php","date":"2020-02-23T15:03:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145774.75/warc/CC-MAIN-20200223123852-20200223153852-00071.warc.gz","language_score":0.9127630591392517,"token_count":1921,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__159907592","lang":"en","text":"Introduction. The LED has become a pivotal illumination technology with a wide variety of applications. Since their initial invention, LEDs have been used in. display technology, the onset of mini-LED and micro-LED has been such as smart watches, mobile phones, TVs, laptops, augmented reality. The criteria presented in this paper cover the most important TV technologies currently .eu/LexUriServ/orbureforha.tk?uri=OJ:LEN: PDF . called LED TVs use LED instead of CCFL or HCFL for backlighting purposes.\n|Language:||English, Indonesian, Portuguese|\n|ePub File Size:||16.89 MB|\n|PDF File Size:||16.50 MB|\n|Distribution:||Free* [*Register to download]|\nLED TV user manual. Thank you for downloading this Samsung product. .. panel uses a panel consisting of sub pixels which require sophisticated technology to. 𝗣𝗗𝗙 | Recent advances of LED-lit LCD TVs are reviewed. The influence of LED backlight on the color performance, electro-optic characteristics of the LCD TVs. Basic Technologies - Cathode Ray Tubes (CRT). Cathode + uses old TV technology (simple approach). + filled and shaded surfaces are . More info at: orbureforha.tk Narrow band . rotating LED matrices. - rotating helical.\nThere are three main configurations of LED as backlights for television screens: This method is considered the best LED backlight type, but can only be found on a limited number of models. This produces a more uniform backlight and provides a more effective use of local dimming , where it can change the luminosity of only a specific part of the screen. Technically, this can create an even greater color range gamut by matching the backlight color with the picture.\nIn practice though, you will not really see the difference. Depending on the television, it can be all around the screen or only on the sides or the bottom. This allows the screen to be very thin. However, it can cause some spots on the screen to be brighter than others, like the edges.\nExpensive LED Beginnings\nThis problem is called flashlighting or clouding. It can be seen when watching a dark scene in a dark environment. Similarly to the full array method, the LEDs are directly behind the screen. However, there are very few of them and they cannot be controlled separately to match the luminosity of the picture.\nThese TVs are not very thin because of the space required behind the screen to add the LEDs and to diffuse the light over a big area.\nSign Up Log In View All. New — —. Sign Up Log In. Become a contributor.\nPreferred tv store Auto site. My Ratings.\nLog out. Best TVs. TV Recommendations. View all TV recommendations.\nThe Frame D Series 4k P Series E Series P Series Quantum. M Series D Series p C8 OLED. B8 OLED.\nLED vs. LCD TVs explained: What’s the difference?\nE8 OLED. site Fire TV Fire TV Edition 4k. H9E Plus. site Fire TV. View all TV reviews. Latest TV Activity. View all TV activity. How We Test We download our own TVs and put them under the same test bench, so that you can compare the results easily.\nGuide Which TV Size? Curved vs Flat LCD types: View all TV articles. TV Tools. Having trouble deciding between two TVs? This tool will clearly show you the differences. Use our detailed data to filter, sort and find the perfect TV for your needs.\nNot sure how big of a TV you should download? This helpful tool will make it clear for you. Want to see us review a specific TV? Here you can vote for our next review. How they work. Updated Feb 17, By Cedric Demers.\nThe pixel is not excited continuously, but in short pulses. The naked eye perceives this as flickering. Some people are very sensitive to this. Of course, when you see an LED display working , you wonder exactly how it works.\nConfused about LED vs. LCD TVs? Here's everything you need to know\nIn order to get a good understanding of how an LED display works , it is important to learn about them in the context of the current television display technologies available in the market. While plasma televisions were once quite popular and many of the ones owned by users still use this technology, they are no longer manufactured and have been replaced by OLED televisions. In a plasma television, little cells of noble gases, usually Neon and Xenon, are excited and get into a supercharged state known as the plasma state.\nIn this state, the subatomic components of these gases emit ultraviolet light.\nThe ultraviolet light itself is not visible. However, there are little phosphors inside those cells that absorb this ultraviolet light and then re-emit it as light in the visible spectrum.\nThat is what you eventually see as the viewer of the television. Within each pixel, there are 3 smaller pixels that each emit red, blue, or green light. For brighter light, the gas is excited to a higher degree.\nMeanwhile, these three colors combine in different proportions to produce all the colors you see on your television. Because of the nature of light production, the pixels are excited in little bursts of power, which causes them to flicker. In the early days of plasma display technology, this flickering was visible to the naked eye and affected the user experience.\nOn higher end models the flickering happens much faster, which reduces the effect. One of the strengths of plasma display technology is how deep the blacks are. This is mainly because each pixel individually emits its own light.\nFor black to be displayed , the pixels in the associated area will simply not emit any light at all. The pixels also stop emitting light as soon as the excitement stops, which makes images change more smoothly. This is another advantage that plasma displays have over LCD displays, which often suffer from motion blur.\nOne major disadvantage of plasma displays is image retention, which occurs when the same image has been on the plasma display for a long time. Technology has improved the situation and, while image retention still occurs, it rarely lasts for more than a few minutes, unless the image has been on display for many days at a time a problem more common among public advertisement displays.\nHere, there are three components to such a television. There is a liquid crystal display and a light source at its back known as a backlight. There is also a light diffuser between the two that helps to make the light coming to the screen more uniform.\nThe liquid crystal display acts as some kind of filter. It blocks light in each pixel by applying and controlling an electric field to each pixel. For black to be displayed , the light will be completely blocked while white means all the light will be let through. A portion of light will always find its way through the filter. One of the advantages of an LCD television over a plasma television is a lower energy cost.\nLED LCD vs. OLED: TV display technologies compared\nThe energy consumed when applying an electric field to a pixel and illuminating the backlight is lower than the energy consumed in exciting the electrons in plasma. The main disadvantage of LCDs is that some viewing angles do not work. There are two types of LCD televisions, based on what kind of backlight is used: CCFL stands for cold-cathode fluorescent lamp.\nCCFLS use thin light tubes unlike the fluorescent tubes used for regular lighting to light the liquid crystal display.This tool will clearly show you the differences. H9E Plus H8C. What is local dimming?\nLCD TVs? The naked eye perceives this as flickering. My Ratings.\n60” class (60.10” diagonal) Edge LED Commercial Lite Integrated HDTV\nLEDs are two-lead semiconductor light source that resembles a basic \"pn-junction\" diode , except that an LED also emits light. The electrodes on the two plates are at right angles to each other. The first practical light emitting diode was invented in by Nick Holonyak, Jr at General Electric.\nThis layer of organic semiconductor is situated between two electrodes; typically, at least one of these electrodes is transparent.\n- HIRO AND TADASHI BOOK\n- PROJECT MANAGEMENT CASE STUDIES HAROLD KERZNER PDF\n- PAI RICO PAI POBRE AUDIO BOOK\n- AMAR PRIYO VOUTIK GOLPO BY HUMAYUN AHMED PDF\n- BUKU PENYAMBUNG LIDAH RAKYAT PDF\n- DELTORA SHADOWLANDS EBOOK\n- HANDBOOK OF CHLOR ALKALI TECHNOLOGY PDF\n- GU FAMILY BOOK HARDSUB INDO\n- EMPEROR OF ALL MALADIES PDF\n- LIFE AND DEATH TWILIGHT REIMAGINED PDF\n- HEALING THE ADDICTED BRAIN PDF\n- MINDFULNESS MARK WILLIAMS EBOOK\n- ANUPAM SINKS CATALOGUE PDF\n- ENOCHIAN MAGIC FOR BEGINNERS PDF","domain":"optical_engineering"}
{"url":"https://www.dsd-stalinrichting.nl/en/products/dsd-barn-equipment/barn-lighting/agriled-3-pro/","date":"2023-06-03T10:48:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649193.79/warc/CC-MAIN-20230603101032-20230603131032-00677.warc.gz","language_score":0.8708904385566711,"token_count":118,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__233842383","lang":"en","text":"Agriled 3 PRO\nDevelopment based on scientific research, especially for the barn environment of dairy cows. The LED fixtures have 36.000 lumen. Additionally is the lighting level of 150-200 lux equally distributed on the floor of the barn. With 156 lumen/watt is the Agriled 3 Pro efficient and economically justifiable.\n- 5 year warranty\n- Light color 4000K\n- Integrated red LED light optional.\nIn combination with the Agribox Pro, the fixtures are part of an intelligent, fully automated, lighting system.","domain":"optical_engineering"}
{"url":"https://www.isotech.co.uk/infrared-calibrators/high-emissivity-blackbody-sources/cyclops-model-878","date":"2020-07-16T00:02:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657176116.96/warc/CC-MAIN-20200715230447-20200716020447-00446.warc.gz","language_score":0.918694257736206,"token_count":112,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__10701272","lang":"en","text":"The Cyclops Model 878 is a spherical blackbody source. It consists of an inner black sphere that sits inside a spherical furnace and is suitable for use as a radiation source for infrared thermometers.\nThe inner sphere has a nominal diameter 230mm is accessed by an optical sighting tube. The furnace can be supplied in one of two constructions, one providing an aperture size of 17mm and one of 45 mm.\nThe furnace can be adapted for thermocouple operation by replacing the inner sphere with an equalizing block and using a different control sensor.","domain":"optical_engineering"}
{"url":"https://bnochemeng.imweb.me/","date":"2018-03-22T21:22:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257648003.58/warc/CC-MAIN-20180322205902-20180322225902-00329.warc.gz","language_score":0.9351515769958496,"token_count":111,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__138074806","lang":"en","text":"HOW TO OLED PURIFICATION?\nOLED, comprising an element converting electric energy into light energy, has been actively used in the general display industry. However, it is essential to improve its purity through a purification process due to the features of this element. It is known that the purification process requires a high cost and highly advanced technology.\nThe methods for purifying OLED materials include recrystallization, distillation, column-chromatography and sublimation methods.\nThe most frequently used method is\nthe column-chromatography method","domain":"optical_engineering"}
{"url":"https://www.cibse.org/policy-insight/news/building-on-first-principles-sll-publish-a-new-code-for-lighting","date":"2023-12-04T17:21:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00087.warc.gz","language_score":0.8963810205459595,"token_count":831,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__281136206","lang":"en","text":"The SLL Code for Lighting establishes the fundamentals required by lighting designers and anyone responsible for the application of light and lighting within the built environment.\nThe 2022 update reflects the rapid development in lighting technologies and research. Advances in LED lighting technology over the last decade have seen it become the dominant light source. Amongst other developments, this has led to extensive lighting research around the non-visual effects of LED light, and the potential for artificial lighting to disrupt and/or support human circadian rhythms.\nIt is understood that lighting conditions can affect visual performance, and in some cases, cause visual discomfort. The dominance of LED lighting has contributed to discussions relating to lighting metrics, colour rendering, and the spectral content of LED light sources. The possibility that exposure to light can have significant effects on human health and function beyond the obvious visual effect implies another basis for lighting recommendations. However, more knowledge is required before non-visual effects can be applied with confidence, particularly about the effects on healthy people exposed to light by day.\nLighting is vital in the modern world, enabling 24-hour society to exist. It is used for many different purposes, from enabling people to work accurately and safely, to visually enhancing our environment and improving accessibility and security.\nThe new edition of the Code considers the cost of lighting in relation to the health and wellbeing of an occupant and the environment. The recommendations included in the Code aim to strike a balance between the benefits and the costs. The basis of energy-efficient lighting is to provide the right amount of light, in the right place, at the right time, with the right lighting equipment.\nSplit over twenty chapters, the Code covers definitions for the various units of measurement and the interrelationships between them; calculation methodologies for a range of applications; photometric data; colour metrics; and maintenance factors for LED light sources and luminaires.\nMost lighting calculations are carried out using software tools based on the fundamental calculations that are listed within the Code for Lighting. The Code specifies the quantitative lighting requirements for a wide range of applications, along with guidance on how these might be achieved. By understanding these fundamentals, the designer, engineer, or facilities manager is equipped with the information they might need to verify automated calculations.\nThe Code sits alongside the SLL Lighting Handbook, which is more aligned to project-based lighting design, technology, and applications.\nProject manager and editor-in-chief:\n- Sophie Parry, CEng MIET FSLL, head of Akademie, Trilux UK\nChapter authors and principal contributors:\n- Allan Howard, BEng (Hons) FLIP FSLL, group technical director (lighting), WSP\n- Peter Raynham, CEng MSc MCIBSE FILP FSLL, professor of the lit environment, Institute for Environmental Design and Engineering, UCL\n- Sophie Parry (as above)\n- Peter Thorns, CEng BSc (Hons) FCIBSE FSLL, head of strategic lighting applications, Zumtobel Group Lighting\n- Ruth Kelly-Waskett, PhD CEng MCIBSE FSLL, senior associate, Hoare Lea, SLL past president\nContributors and reviewers\n- Steve Fotios, PhD CEng MEI MILP FSLL, professor of lighting and visual perception, University of Sheffield\n- Nigel Monaghan, FSLL, senior lighting consultant, Luminous Solutions\n- Peter Raynham (as above)\n- Peter Thorns (as above)\n- Technical secretary, SLL technical and publications committee\n- John Fitzpatrick\n- Ken Butcher, CIBSE Publications\nFor more information about the SLL Code for Lighting, visit https://www.cibse.org/knowledge-research/knowledge-portal/sll-code-for-lighting-2022\nFor more information about the Society of Light and Lighting (SLL), visit https://www.cibse.org/get-involved/societies/society-of-light-and-lighting-sll","domain":"optical_engineering"}
{"url":"https://ultimatefirearmtechnologies.com/product/newcon-lrb-3000-pro-3000-yard-rangefinder-for-sale/","date":"2024-03-05T07:41:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707948223038.94/warc/CC-MAIN-20240305060427-20240305090427-00822.warc.gz","language_score":0.7997115850448608,"token_count":313,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__128638362","lang":"en","text":"Medium range laser rangefinder binoculars LRB 3000PRO and LRB 4000CI incorporate the latest achievements in optronics, laser technology and electronics in their design. These binoculars combine uncompromised optics with advanced data processing algorithms. Both models instantly measure distance and speed using the highly accurate time-of-flight delay method. LRB 3000PRO measures azimuth with built-in consumer-quality digital compass. An advanced digital compass with inclinometer built into LRB 4000CI enables accurate height, azimuth, and elevation measurement.\nModel LRB 3000PRO\nObjective lens, mm 40\nExit pupil diameter, mm 5.7\nEye releif, mm 20\nField of view 6o\nInterpupillary distance, mm 60-70\nDiopter adjustment range ±4\nLaster type Eye safe 905 m\nDistance measurement range, m 20-3,000\nAzimuth measurement range 6,400 mils / 360 degrees\nDistance measurement accuracy, m ±1\nAzimuth measurement accuracy ±1degree\nRange measurement time, sec 0.5\nPower supply 9V Lithium non-magnetic\nBattery capacity, shots >5,000\nLow battery indicator V\nDimensions, mm 158x145x69\nWeight, g 970\nCall for shipping and payment options. All sales are Final.\nSee FAQ for firearm purchase Rules and Regulations. Read the information in the FAQ section.\nShipping will be actual FEDEX rates. Florida residents add 7% tax.","domain":"optical_engineering"}
{"url":"https://healthjournalonline.org/professional-photography-studio-dimmable-led-large-shooting/","date":"2022-08-13T20:44:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571987.60/warc/CC-MAIN-20220813202507-20220813232507-00326.warc.gz","language_score":0.8337669372558594,"token_count":1079,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__176563714","lang":"en","text":"(as of Mar 04,2022 02:44:09 UTC – Details)\nKonseen designs,We are a factory,manufactures and markets a wide range of camera and lighting support equipment for the professional photographic, film, theater, live entertainment and video markets. The product line includes ring light, tripods, studio lightings, reflectors, soft box,light stands and other photography equipment.\nIt has become a tradition of Konseen to continually invest in the latest technology together with constant assessment of the product range, production needs and consumer trends. This policy maintains the highest standard of quality at all stages and set the standards others follow.\nOur product lines will meet bothyour needs and budget.\nKonseen focuses on high quality and high service!\n47x39x78inch Large Cube Dimmable LED Light box\nSize: 47x39x78inchVoltage: 100-240V 50/60HZColor Temperature:5500KDimmable: YES Dimming range: 1%-100%Plug: US PlugPackage Weight: 17.5kg\n3 Shooting Angles:\nThis photo background shooting tents have 3 professional photography angles (left, front, right), convenient for you to present items from different angles to achieve the ideal shooting effect.\n1. Excellent LED Light and High CRI≥95:\n8pcs 5500K LED light strips with 3000LM/pcs as well as a color-rendering index of 95+ , super bright to provide the adequate light source.\n2.There are magnets at the two ends on the back of the light board, which can be directly attracted to the pole\n3. Safe voltage, use peace of mind.\nBrightness dimmer allows you to control the light effect better, ranging from 10%-100%.flicker-free Photo Studio box can ensure stable shooting for a long time, no matter you use the camera, iPhone or smartphone can take high-quality realistic photos under different backgrounds.\nThe reflective fabric inside the Konseen photo background shooting tents can evenly distribute the light emitted by the lamp beads in each corner of the studio, so that the shed is brighter, the light is more uniform, and it helps to minimize shadows, so you can more Easily shoot different objects from different angles.\nThis professional LED light box comes with 3 backdrops (white/black//orange), so you can easily switch background colors and build up various shooting effect as needed.\nAttach the backdrop:\nCan be use 2pcs strong clips to fix the pvc background.\n1.Attach the light strips:\nHave Magnet in the back of the light strip,It can be attach in the rods.\n2. Have 3pcs soft cloth:\nIt Can prevent extra shadows.\n120*100*200cm / 47x39x79inch\n1x Shed body cover (47x39x79inch/120*100*200cm)16x Metal Rods,all inside the PVC background (Because of the problem of the production batch, there are two colors of black or white )1x Hanger rod (47inch/120cm)3x PVC Background(Black/White/Blue)2x Clamps, 2x Hook9x Three way adapter8x LED Light board (96 LEDs each)8x AC Dimmable adapter3x Soft cloth1x Installation Manual, 1x Carry bag\nHIGH QUALITY DIMMABLE LED LIGHT BOX: The Konseen photo studio is equipped with 8x LED Beads Strips(each strip contain 96 led beads) Dimmable LED Photo lights which offer the perfect amount of light for producing bright and vibrant photos. The LED Photo lights feature a color temperature of 5500k,These premium lights make it easy to take professional looking photos with a much higher quality than photos produced with neon or fluorescent lights\nThe LIGHT BOX have 3 color pvc background boards provide black, blue, white and 3pcs Soft cloth provide soft light reflection and create an infinite field of depth;The LIGHT BOX have 8pcs DIMMABLE AC Power Adapters,to easily adjust the different brightness; Have Tow shooting holes allow you to shoot in different angles for different objects\nThe LIGHT BOX utilizes a specially woven and heat resistant silver reflector, which delivers uniform illumination while eliminating harsh shadows and reflective glare; The frame of the LIGHT BOX can be set up by convenient joints. And the tent body is built with zippers,Very easy to set up\nContents: 1x 47x39x78 inch LIGHT BOX, 3x Soft light cloth, 3x PVC backdrops [black, white, Blue],8x LED Light boards,8x AC Dimmable adapter,1x Instructions,NOTE:The Metal Rods all inside the PVC background\nThe Konseen photo studio is the perfect solution for taking commercial photos with a professional result. Designed for users of any skill level, our detailed Instructions makes it easy to adjust your camera and create high quality photos quickly and effortlessly","domain":"optical_engineering"}
{"url":"https://bigasterisk.com/light9/old/lightsim/","date":"2021-09-17T19:32:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055775.1/warc/CC-MAIN-20210917181500-20210917211500-00356.warc.gz","language_score":0.9282299280166626,"token_count":311,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__42697532","lang":"en","text":"An easy Python/PIL/Tkinter program for visualizing lighting effects by superimposing photographs. Each image has one light on; the result is a weighted sum of the input images. If one of the inputs is called 'ambient', that image will be subtracted from all others before processing. (You can still add the ambient image into the result, of course.)\nMy program has the additional notion of an 'ambient' light. If there was some unmaskable light source during all your images, take an image of just that light source and call it 'ambient'. The program will subtract that image from all the others.\nMy test images reveal a flaw with the technique, since a few of the lights overexpose the light sensor on my camera. As you brighten those lights, the flares appear to dissolve in. A smaller exposure or HDRI images would solve the problem, of course.\nNeeds Python 2.2 (with Tkinter) and PIL. Not optimized at all; might suck on machines that are slower than mine. As you can imagine, this algorithm can be optimized enormously, without even resorting to writing C routines to do the image processing a little faster. That'll come in the next version, since our application wants about 75 layers.\nThe technique is described excellently here by Paul Haeberli.\nWe're considering using a tool like this for a bigger theater lighting system.\n|just ambient||a mix with some other light sources|","domain":"optical_engineering"}
{"url":"https://ceo.osu.edu/technologies/efficient-graded-iii-nitride-nanowires","date":"2019-10-23T12:54:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987833766.94/warc/CC-MAIN-20191023122219-20191023145719-00292.warc.gz","language_score":0.914342999458313,"token_count":268,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__197895391","lang":"en","text":"Efficient Graded III-Nitride Nanowires\nT2010-134 A nanowire that overcomes defect formation normally found in LEDs, leading to higher charge density.\nUnlike traditional light bulbs, Light Emitting Diodes (LEDs) use less power, last longer, and contain no environmentally harmful substances. However, LEDs struggle with technical errors, such as lattice mismatch and large resistances. As adoption increases, it is necessary to develop LEDs that are reliable and efficient and maintain the long lasting and environmentally efficient qualities seen in early products.\nResearchers at The Ohio State University, led by Dr. Siddharth Rajan, have developed a novel Gallium III-Nitride nanowire for LEDs that uses nanoscale epitaxy and compositional grading in polar semiconductors. This is done through grading carrying from GaN to AlN and then from AlN to GaN, which leads to a high charge density. The invention can be applied in the IR, visible, and UV range.\n- LED manufacturing\n- LED lighting\n- Materials engineering\n- Nanoscale epitaxy overcomes effect formation during epitaxial growth\n- Higher charge density results in lower resistance and better efficiency\n- Hole doping using polarization-doping\n- Applicable in IR, visible, and UV range","domain":"optical_engineering"}
{"url":"http://www.polyphotonix.com/technology/","date":"2019-10-23T15:11:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987834649.58/warc/CC-MAIN-20191023150047-20191023173547-00534.warc.gz","language_score":0.9175264835357666,"token_count":338,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__147950715","lang":"en","text":"PolyPhotonix develops light treatment for retinal diseases. Using state of the art in-house facilities in partnership with the Centre for Process Innovation, we research the application of light-based therapies.\nOrganic Light Emitting Devices (OLEDs) are based on electroluminescence in certain organic molecules and polymers. Passing an electric current through these materials creates an excited states which in turn emits light. Organic materials can be coated as ultra thin layers (less than 1/100th of the thickness of the human hair) using printing and vacuum processes.\nThe processability of electroluminescent organic materials and the ability to coat thin emissive films make OLEDs a very promising technology. OLEDs can cover a very large area - the size is only limited by the coating process. Thin films or panels can cover a ceiling or an entire wall. Once process technologies are established, OLEDs will be manufactured in large volumes, eventually reducing costs.\nThe materials and layer structures in OLEDs can be tuned selectively to adjust the color and brightness of the light generated. OLEDs can be of different shapes, sizes, it can be flexible, even transparent.\nOLEDs are excellent as a large area, diffuse light source for architectural surfaces, designer lamps, signs, and general illumination – even windows and window shades. One unique aspect of OLEDs is that they eliminate shadows.\nThose thin and flexible surfaces can be integrated into products in our environment, in ways that are not possible with traditional lighting or light emitting diodes (LED). OLEDs open up unlimited opportunities to designers, from the fashion world, to product designers, artists and architects.","domain":"optical_engineering"}
{"url":"http://mdsavunma.com/portfolio-view/remote_weapon_station_camera_system/","date":"2021-04-15T18:22:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038087714.38/warc/CC-MAIN-20210415160727-20210415190727-00113.warc.gz","language_score":0.8967078328132629,"token_count":214,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__208678401","lang":"en","text":"The MAGNEL series of integrated zoom cameras for Remote Weapon Systems is the perfect choice for day-sight systems demanding the utmost electro-optical performance under extreme conditions of temperature, shock and vibration.\nCST’s zoom camera systems are designed with high-precision bore-sighting that is retained even when exposed to the harsh RWS environment. The camera system is rugged enough to be mounted directly on the gun barrel, for use on land-, vehicle- (tracked and wheeled) as well as for naval-based remote weapon stations.\nCST can provide solutions either based on off-the-shelf components or custom designed combinations of cameras and lenses, to fit a specific Remote Weapon Station configuration.\n- High-precision bore-sight retention\n- Extremely high shock and vibration tolerance\n- Oil-free lens construction for high reliability and durability\n- Compact design with combination of optical and digital zoom\n- External video input for combining with thermal camera\n- Wide operating temperature range, -40°C to 70°C","domain":"optical_engineering"}
{"url":"https://techsupplyplus.com/vaddio-clearview-hd-20se-2.4-megapixel-hd-surveillance-camera-monochrome-color-999-6986-000aw","date":"2022-09-26T08:38:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334855.91/warc/CC-MAIN-20220926082131-20220926112131-00615.warc.gz","language_score":0.838767945766449,"token_count":314,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__222675404","lang":"en","text":"The ClearVIEW HD-20SE HD PTZ Camera combines the best features and functions of the HD-18, HD-19 and HD-20 PTZ cameras. This new PTZ camera features an advanced Image Signal Processor (ISP) and encompasses the innovation of the HD-18, the low light capability of the HD-19 and the Full HD performance of the HD-20 ClearVIEW Camera line.\nThis camera features native 1080p/60 and uses the latest 1/2.8-type Exmor high speed, low noise CMOS image sensor technology with 2.38 total pixels. The ISP provides fast, razor-sharp auto-focus routines, incredible detail, realistic textures and vivid colors. In addition, the HD-20SE has an impressive low-light performance of 0.3 Lux (color) and 0.03 Lux (B/W)\nAs the name suggests, the HD-20SE features a 20X optical zoom multi-element glass lens and a 63-degree wide to 3.47-degree tele horizontal field of view. Outputs include simultaneous HDMI, YPbPr and HSDS and support both drop framed and non-drop framed HD video resolutions.\nThe Quick-Connect™ DVI/HDMI delivers simultaneous analog YPbPr HD video and digital video (DVI-D or HDMI) outputs on separate connectors. This system is ideal for video conferencing, multiple monitoring and large screen projection applications.\nMore from the Manufacturer","domain":"optical_engineering"}
{"url":"http://marposs-sh.com/products/biaozhunceliangjian/tanzhenheceliangchuanshu/94.html","date":"2021-03-04T08:27:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178368687.25/warc/CC-MAIN-20210304082345-20210304112345-00193.warc.gz","language_score":0.8727099299430847,"token_count":231,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__210057609","lang":"en","text":"来源：意大利马波斯MARPOSS 日期：2016-11-30 浏览量：\nThe A124 miniature measuring cell has been developed to satisfy the increasing demand for a compact and easy to use measuring component. Thanks to its small dimensions A124 can be applied in simple as well as multidimensional measuring applications. Compact dimensions, ease of use and universal applicability make TESTAR A124 the first choice for gauging designers.\nThe 7 x 7 x 31 mm compact dimensions allow solving measuring tasks for limited space applications in place of pencil probes and transmission devices.\nDespite these small dimensions A124 is provided with a replaceable contact, a feature normally available only in larger measuring devices. Therefore contact replacement would no longer require disassembly of the complete measuring cell resulting in time and cost savings. This design allows also use of different types of contacts depending on the application requirement without the need for a special cell configuration.\nThe simple design and the reduced number of components make A124 a product that is:","domain":"optical_engineering"}
{"url":"http://www.samiad.co.uk/gallery/lens.php?lens=21&exhibition=3","date":"2019-02-17T23:03:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247482788.21/warc/CC-MAIN-20190217213235-20190217235235-00599.warc.gz","language_score":0.9171398878097534,"token_count":182,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__25760976","lang":"en","text":"Canon 24-105mm f/4 L IS USM\nOne of the newest Canon L lens released, the 24-105mm f/4 represents convenience without compromise. The lens has the benefit of an incredibly versatile focal length, along with latest generation image stabiliser, which makes it the ultimate walkabout lens where image quality is concerned.A few random photos (from gallery 'Canon G2 Gallery' taken with this lens (click thumbs for bigger versions):\nIt does give away one stop of light when compared to the 24-70mm f/2.8 Canon lens, but with a sharp f/4 and IS the difference is closer than it might appear.\nBoth the 24-70mm f/2.8 and 24-105mm f/4 have their separate intended uses, but in terms of a general walkabout lens the 24-105mm cannot be beaten.","domain":"optical_engineering"}
{"url":"http://opticalsignature.com/about-us/","date":"2022-12-06T10:45:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711077.50/warc/CC-MAIN-20221206092907-20221206122907-00486.warc.gz","language_score":0.9155475497245789,"token_count":338,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__178659374","lang":"en","text":"The Optical Signature team of engineers and technicians are ready to provide solutions to customers’ specific custom needs. We precision laser drill apertures, slits, and shapes into a wide variety of materials.\nOur team works with the cutting edge of technology to be sure that every solution we offer is to the customers specifications. We utilized scanning electron microscopes, 3D laser scanning confocal microscopes, automated measurement systems, and diffraction measurement systems. Using these systems allow us to be sure of the precision and accuracy of every part. Through the use of these different technologies we can cross calibrate our products to ensure quality.\nThe goal of every member of the Optical Signature engineering team is to provide our customers with reliable products designed to their specifications. This includes any particular requirements such as a particular custom shape, different environments, or mechanical stress. We strive to provide high performance and quality products.\nWe have a fully equipped machine shop and use advanced chemical etching processes. Our experienced staff can combine some or all of these capabilities in a multi-step process whereas a single technique application would be impractical or impossible. In each unique case, the choice of product materials and manufacturing processes are specific and may affect future product performance.\nBoth our production and engineering teams are readily available to help customers consider the specifics of the original product design. We offer our expertise in developing and redesigning a product to create both a feasible and more cost effective project with precision and accuracy.\nIf you need superb optical apertures, slits, shapes, or any other precision laser work, contact the Optical Signature team today\nIn Nature, Everything has a Signature.Joe d’Entremont","domain":"optical_engineering"}
{"url":"https://www.birdbarn.co.uk/shop/spycameracctv-wireless-bird-box-camera-kit/","date":"2020-04-05T18:29:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371609067.62/warc/CC-MAIN-20200405181743-20200405212243-00257.warc.gz","language_score":0.8670739531517029,"token_count":175,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__159219262","lang":"en","text":"This tiny camera is perfectly designed for bird nesting boxes to watch wildlife in your garden. In this bundle we have included our USB Video Capture Device for recording footage to your Windows PC.\nWhen connected to power this camera transmits video and audio wirelessly up to 50 metres away in clear line-of-sight to its receiver.\nRecords footage to Windows PCs using our USB Video Capture Device. Just plug it into a USB port and install the free software to start recording.\nInvisible infra-red LEDs provides night vision allowing the camera to see around the clock.\n- Night vision for filming in dark bird boxes\n- Receiver so you can view live stream\n- USB Connector, 2.4GHz\n- Record to your PC\n- Motion Detection\n- Wide-angle lens and 700 TV Line colour video\n- Compatible with Window PC only","domain":"optical_engineering"}
{"url":"http://www.hitc.com/en-gb/2014/11/24/castar-augmented-reality-glasses-set-out-to-change-how-we-play-g/","date":"2018-09-21T01:07:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156690.32/warc/CC-MAIN-20180920234305-20180921014705-00438.warc.gz","language_score":0.9534550309181213,"token_count":249,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__214362347","lang":"en","text":"After their $1 million Kickstarter campaign in 2013 the finished castAR product is finally being shipped.\nThe castAR glasses are a headset which allows its wearer to view augmented reality images through the lenses. The project was funded on Kickstarter a year ago, where the Technical Illusions team raised $1 million.\nThe project is the creation of former Valve employees Jeri Ellsworth and Rick Johnson, of Technical Illusions. The headset uses active shutter glasses, with a camera for input and a projector to display 3D images onto a surface. There's also a clip-on which turns the headset from an augmented reality display to a virtual reality display.\nThe creators say that its applications don't have to just be for gaming, although we have to say that using it for a D&D game looks really, really cool. The tech could be used for computer aided design, education, movies and more.\nTake a look at their original Kickstarter video below.\nThe next video shows you exactly what the team are shipping with the headset, as it's now complete and the first packages are being sent out to Kickstarter backers.\nDid you fund the Kickstarter campaign? Would you be interested in buying something like this, and for what purpose?","domain":"optical_engineering"}
{"url":"http://www.computationalimaging.com/products/lighting.aspx","date":"2023-03-27T17:31:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948673.1/warc/CC-MAIN-20230327154814-20230327184814-00127.warc.gz","language_score":0.8677421808242798,"token_count":121,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__210513572","lang":"en","text":"CCS Illumination for Computational Imaging Systems\nEnabling high quality multi-shot image capture in a controlled fashion\nComputational Illumination from CCS provides illumination in a structured format - enabling high quality multi-shot image capture in a controlled fashion. These components are open-architecture so that they can be integrated with any machine vision camera and many smart cameras.\nCCS provides a number of Computational Illumination products to allow for easy implementation. Please contact your local CCS Sales office if you require any assistance in selecting compatible components, such as cameras, lenses and imaging software.","domain":"optical_engineering"}
{"url":"https://www.newequipment.com/plant-operations/article/22060022/case-study-smart-camera-vision-steps-up-bin-picking","date":"2024-03-05T01:20:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476592.66/warc/CC-MAIN-20240304232829-20240305022829-00819.warc.gz","language_score":0.9093948006629944,"token_count":1552,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__196968082","lang":"en","text":"Programming robots to pick randomly oriented parts from shipping containers or bins continues to be one of the most challenging automation tasks, requiring extensive engineering knowledge and complex system design. Thanks to the growing capability of today’s cost-effective smart cameras, skilled automation integrators are able to solve bin-picking applications faster and more cost-effectively than ever before. As a result, manufacturers are now able to automate more assembly applications than ever and achieve new cycle-time records while avoiding retooling and the additional costs of specialty shipping containers.\nFor one such project, full-service automation integrator SYSTEMATIX Inc. brought together a multidisciplinary team of engineers to solve a vision-guided robot (VGR) bin-picking application as part of a work cell for automotive seat lumbar-actuator assembly.\nThe automotive customer’s existing, low-volume production line depended on up to 4 manual laborers to transfer full bins from a feeder conveyor to the assembly table, pick each actuator from the loosely arranged bin, and remove dividers inside the bin to reach the next layer before finally placing each actuator into a specialized nest for final assembly with a wire mat. Producing each part took approximately 90 seconds, mainly because of the difficulty of manipulating the sharp-edged, flexible wire mat. While this was acceptable for a time, higher volumes required an automated solution.\nSYSTEMATIX developed a compact VGR solution. Using a discrete distance measurement sensor, a Cognex In-Sight 8000 ultra-compact vision system with PatMax RedLine pattern-search capability mounted on a vertical slide, and a 6-axis robot, SYSTEMATIX improved the customer’s production accuracy while reducing cycle time and machine-tending requirements. “Partnerships with leading-edge technology suppliers such as Cognex allow us to offer best-in-class automation solutions to our customers,” says Rob Veldhuis, Director of Sales at SYSTEMATIX.\nSolving Unstructured Bin Picking\nThe complete work cell utilized 7 Yaskawa robots to remove the actuators and wire mats from their respective shipping containers, place the parts into nests, and make all final assembly connections. One of the critical challenges when designing this work cell was how to program a robot to reliably pick up randomly ordered parts with high accuracy and speed to meet new work cell cycle-time requirements of 5 seconds per assembly without having to redesign the shipping containers, which would add cost and impact other production steps.\nThe existing containers, which are used throughout the production facility, include corrugated dividers to separate one layer of actuators from the next. While this cost-effective solution allows the same container to be used on multiple lines throughout the plant, it also means that actuators are not secured in the bins, which causes them to shift during transport. As a result, each randomly positioned part must be located before it can be picked up by a robot. Furthermore, because each bin has several layers, the vertical distance from the robot to the layer divider must be recalculated as the bin is emptied.\nA typical setup using a 3D sensor — such as a low-resolution, low-speed time-of-flight sensor, a laser-scanning triangulation sensor, or two cameras arranged in stereovision configuration — requires a lot of time to capture the image, send it to a separate computer or device for processing, execute advanced 3D analysis algorithms, and communicate the results to the robot. By reducing the problem to 2D part location and using a photoelectric distance-measurement sensor to provide the third-dimension (height) information, the final solution achieved much faster cycle times without the complexity and cost of traditional 3D machine vision solutions.\nSimplified 3D Vision\nEarly in the design cycle, SYSTEMATIX engineers realized that achieving a 5-second cycle time was going to be challenging on multiple fronts. Not only did the machine vision system need to be able to locate parts in random orientation at high speed and locate dividers within shipping containers, but even the bin change needed to happen as quickly as possible. The strategy to negate this was to pick one piece from the bin behind the typical pick bin. This allowed more time for the empty bin to move out and the new bin to advance while still satisfying the demands of the main line to have a new part for the assembly every 5 seconds.\nTo reduce the complexity of the machine vision program and further cut cycle times while constraining costs, SYSTEMATIX engineers paired an IFM Efector 200 photoelectric distance-measuring sensor and a Cognex In-Sight 8000 smart camera mounted to an IAI servo-driven slide. The photoelectric sensor measures the vertical distance to the bin divider. Once that distance is calculated, the slide moves up or down to maintain a fixed distance between the camera and the divider surface. This action eliminates the need to calculate the scale of the image the 2D camera sees as the bin layers empty and the parts become farther away.\nThe Cognex In-Sight 8000 camera was chosen for part location and robot guidance because of its position as an industry-leading smart camera solution that includes high-speed image acquisition, best-in-class image-processing software, and network communication in a compact package. Additionally, the ultra-compact machine vision system comes standard with Cognex’s PatMax RedLine pattern-search algorithm — which can speed up part location by up to 10 times.\nThe very first step in any machine vision application — and the one that usually determines whether the application will succeed or fail — involves locating the object within the vision camera’s field of view. This process is known as pattern matching. Pattern matching can be extremely challenging, as many variables can alter how an object appears to a vision system. To overcome these limitations, Cognex developed geometric pattern-matching technology called PatMax. This technology learns an object’s geometry using a set of boundary curves tied to a pixel grid and then looks for similar shapes in the image without relying on specific gray levels. The result is a revolutionary improvement in the ability to accurately find objects despite changes in angle, size, and shading. The latest PatMax iteration, RedLine, significantly reduces the time required to locate a shape, feature, or part within a cluttered image.\nUsing PatMax, the In-Sight 8000 camera in the bin-picking application quickly processes a part image and compares it to a reference image to determine each part’s orientation for the robot. Camera images measured in pixels are translated into robot pick coordinates in millimeters, and Cognex Connect software enables the camera to communicate the coordinates directly from one industrial device to another without intermediate processing.\n“Using Cognex InSight allows us to quickly deploy systems that our customers can understand and maintain,” says Steve Regier, Vision & Controls Engineer at SYTEMATIX. “As a provider of automated equipment, Cognex In-Sight gives us the power and flexibility to handle shift in scope and functional requirement changes that can happen when developing a custom machine.”\nThrough smart integration and the use of best-in-class smart camera solutions such as the In-Sight 8000 running powerful image-processing algorithms such as PatMax, SYSTEMATIX was able to achieve new levels of automation and speed for one of its biggest automotive customers.\nFor more information visit Cognex online at http://www.cognex.com.","domain":"optical_engineering"}
{"url":"https://www.highvolt.de/es/desktopdefault.aspx/tabid-6/1589_read-6222/1589_page-24/","date":"2023-01-28T12:40:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499634.11/warc/CC-MAIN-20230128121809-20230128151809-00492.warc.gz","language_score":0.919113278388977,"token_count":258,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__27789598","lang":"en","text":"AD3000 S6 for rack mounting with two fiber optical probes\nDresden, 20 September 2013 Measuring systems division of bitGate data systems GmbH acquired under an asset deal\nWithin the framework of an asset deal successfully concluded in July, HIGHVOLT Prüftechnik Dresden GmbH has acquired parts of the measuring systems division of insolvent manufacturer bitGate data systems GmbH in Alsfeld.\n„The deal has enabled us to add highly qualified services relating to pulse current and voltage measurements to our already extensive portfolio in the field of high-voltage testing and measuring systems,” says managing director Dr. Ralf Bergmann. HIGHVOLT's new generation of transient recorders is characterized by the particularly high number of parallel measuring channels. The use of fiber-optic transmission technologies facilitates extremely reliable signal transmission with transient recorders such as the digital system AD3000.\n“Our customers will also benefit from a greatly expanded range of software, which can be tailored precisely to the most varied customer needs,” adds managing director Bernhard Nick. “The expansion of our product range to include further technologically sophisticated, customer-specific measuring systems will further strengthen HIGHVOLT's standing on the market.”\nDetailed product information","domain":"optical_engineering"}
{"url":"https://www.xylem.com/en-sg/products-services/analytical-instruments--equipment/laboratory-equipment/refractometers2/abbe-refractometers/abbe-60-refractometers/","date":"2020-10-22T00:57:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107878662.15/warc/CC-MAIN-20201021235030-20201022025030-00296.warc.gz","language_score":0.9105319380760193,"token_count":795,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__5733046","lang":"en","text":"The Abbe Refractometer derives its name from the 19th Century physicist Ernst Abbe (1840-1905). Abbe designed an instrument for measuring the dispersion of light and this became the precursor for the so-called ‘Abbe Refractometer’.\nAbbe refractometers have been manufactured by Bellingham + Stanley since the company was founded in 1915 and even to this day, research scientists & academics across the globe turn to Abbe 60 series of refractometers when looking for the ultimate in refractive index measurement performance.\nAbbe 60 series refractometers achieve high performance by eliminating optical and human factors that that limit direct reading Abbe refractometers, enabling Abbe 60 Series refractometers to offer 5 decimal place refractive index results across the whole scale.\nAbbe 60 refractometers are still used to this day for dispersion measurement within the manufacture of contact lens substrates, polymer films, fibre optic and liquid crystal evaluation but the use of Abbe refractometers within the food and industrial processing sectors has somewhat demised since the introduction of the digital refractometer back in 1980. However, Abbe 60 high accuracy refractometers still play an important role within scientific research, academia and in specialist manufacturing processes, especially where high accuracy refractive index measurement is required at narrow bandwidths, such as those emitted by lasers or spectral arc lamps.\nWith good temperature control using an external waterbath and by way of a micrometer drum that eliminates guess work where the borderline falls between graticule lines on the scale, an average accuracy of ±0.00004 RI can be achieved across the specified measuring range from the linear 0-60 refractive angle scale.\nAbbe 60 refractometers have the capability of measuring not only with transmitted light (transmission mode) where sample passes through the sample but is also capable of measuring using a reflected ray (reflection mode), where sample is reflected off the sample surface. The reflection mode is particularly useful when measuring non-homogenous samples, semi solids or even solids such as rubber and polymers.\nHigh Accuracy Abbe 60 Refractometers are ideal for use in research and development, quality control and other industrial laboratories where the highest accuracy and precision is often sought. The Abbe 60/ED conforms to the requirements of ASTM D1218 and is used widely throughout the petroleum industry. The Abbe 60/LR offers low range RI measurement of anesthetics.\nAbbe 60 Series refractometers can also be used to determine the refractive index of pure liquids, solutions and formulated products including: flavourings, fragrances, oils and fats, solvents, plastics, resins, adhesives and many other industrial chemicals but many of these industries have now turned to high accuracy digital instruments that can achieve similar results at the touch of a button.\nThe instruments come complete with digital thermometer, traceable standardization plate, contact liquid, power supply, and instructions for use. Simple software is available for converting refractive index, Brix, and dispersion etc.\nSodium Lamp Outfit\nThe sodium discharge tube is housed in a height adjustable enclosure mounted horizontally to the lamp outfit base. Sodium bulbs are ideal for regular use as they are relatively inexpensive to purchase and have a working life in excess of 3,000 hours.\nSpectral Lamp Outfit\nThe Spectral Lamp Outfit can be used in conjunction with a number of optional bulbs including mercury, cadmium and helium versions to provide well defined narrow bandwidth spectral lines. The bulb is mounted cap down in the metal shroud, which slides on a vertical post for height adjustment. Spectral bulbs are complex items manufactured specifically for scientific purposes and are both expensive to purchase are short in working life (approx. 200-hours). Interference Filters or software may be used to define specific spectral lines emitted from the bulbs.","domain":"optical_engineering"}
{"url":"https://ephotoinc.com/products/320-led-bi-color-changing-dimmable-led-professional-led-light-video-dslr-camera-light-panel-led320","date":"2020-07-05T17:54:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655887377.70/warc/CC-MAIN-20200705152852-20200705182852-00597.warc.gz","language_score":0.6852892637252808,"token_count":99,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__174372721","lang":"en","text":"320 LED Bi-Color Changing Dimmable LED Professional LED Light Video DSLR Camera Light Panel LED320\nRegular price $49.99\n- Built-in color temperature switch from daylight to tungsten (3200K~5600K)\n- Built-In intensity dimmer (10~100%)\n- High Brightness, Low-Heat, Low Power Consumption\n- Hotshoe adaptor and Soft carrying case\n- Size: 10.5\" x 3\"","domain":"optical_engineering"}
{"url":"https://calicomarket.com/products/rockbros-polarized-sports-men-sunglasses-road-cycling-glasses-mountain-bike-bicycle-riding-protection-goggles-eyewear-5-lens","date":"2019-12-08T22:12:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540514893.41/warc/CC-MAIN-20191208202454-20191208230454-00499.warc.gz","language_score":0.8311103582382202,"token_count":220,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__98742339","lang":"en","text":"ROCKBROS Polarized Unisex Sports Sunglasses\nPolarized lenses are made using an injection process thatensures optical correctness which decreases eye fatigue and increases comfort.\nAll of our lenses block 100% of UVA, UVB, UVC rays as well as harmful blue light to 400nm (nanometers).\nPick your style with a grouping of 5 lenses of different shades and colors.\nIncredibly lightweight design of the PC frame offers a comfortable experience - you'll forget you're wearing them!\n- 1 glasses case with cleaning cloth\n- 1 glasses bag\n- 1 polarized lens test card\n- 1 inner frame for shortsighted lenses (myopia) removable if not needed\n- 1 pair of polarized lenses with 4 pairs of interchangeable original lenses\n- lens colors: grey, tinted, blue, yellow, transparent\n- Brand Name: ROCKBROS\n- Lens Width: 7.5cm\n- Lenses Material: Polycarbonate\n- Frame Material: Acetate\n- Lens Height: 4.3cm\n- Weight: 29g","domain":"optical_engineering"}
{"url":"https://sportsresources.co.uk/cornflower-seeds-trcgnx/best-value-binoculars-2019-d86eab","date":"2022-05-26T02:57:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662595559.80/warc/CC-MAIN-20220526004200-20220526034200-00214.warc.gz","language_score":0.9147706627845764,"token_count":3349,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__255741528","lang":"en","text":"This makes it also ideal for birdwatching. Astonishingly, this binocular has fully multicoated optics. While its rangefinder technology is unrivaled, its optical performance is a class above the competition. Save my name, email, and website in this browser for the next time I comment. December 19, 2019 . Best 12×50 Binoculars. Aurosports 10×25 Folding High Powered Night Vision Binoculars. In a world dominated by high-end optical European brands such as Zeiss and Leica finding the best binoculars for the money can be a daunting task, especially if you are on a budget. Binoculars are categorized into Porro prism design and roof prism design. That being said, the optical industry is a lucrative market. Nikon Monarch 5 Kit (Best Value) 6. Most of the hunter or bird watcher may think that you have to have a great binocular which must need to have top-notch features and quality which may cost you arms and legs. When I compared this binocular to others in my arsenal such as the Leupold Mojave, I found it to be less bulky. This is the amount of light that you can visualize. Another thing I love about this binocular is the micro-SD card slot. Both measure 5.8 inches by 5.3 inches. The weight of the binoculars, if you plan on spending lengthy periods of time on a hunt a bulky full frame binocular can be cumbersome and can slow you down. More Gear. However, if you hunt predominantly in open fields, a 10X42 binocular with a relatively lower field of view will do just fine. The rugged framework, wide field of view to 1,000 yards, and 10x magnification make the Gosky 10x42 Roof Prism Binoculars great for outdoor activities, and it includes O-ring seals to prevent moisture damage. Below are two 10X42 binoculars that I believe are among the best deer hunting binoculars that the market has to offer. In this article, I will be exploring the amazing world of binoculars and giving you useful tips on how to buy the best pair. In regards to dimensions, the binocular is of the same size as the 8X42. In my opinion, a field of view above 300 ft is pretty decent and thus, I believe this is binocular that can do well for hunters and birdwatchers alike. Renowned Celestron binoculars are renowned for its quality and optical performance. One of the best features that I like most on this binocular is, it is 100% waterproof. Best Value: Nikon Monarch 7 8x42. It offers the most features in this price range. If you prefer hunting in open fields, then a binocular with a high magnification will be ideal. I once took this baby out on a hunting trip in Salmon, Idaho and I have to say, the pictures were clear and really sharp on the lens edges. Personally, I am accustomed to seeing such large eye cups on full-sized binoculars. Right now Celestron 71345 is another best binocular under this cheapest price segment. If a binocular’s price tag is on the lower end, do not expect it to perform like a high-end binocular. It provides crystal-clear images by its Multicoated Eco-Glass Lenses also it offers everything that a user must need to use this binocular at ease. Also this binoculars is on my best binoculars under $1000 favorite lists. EXTREMELY DETAILED, SHARP VISION fully multi-coated lenses provide high resolution images in these 8x32 binoculars for... WATERPROOF, FOG PROOF AND DURABLE shock proof housing and a high grip outer. Ordinarily, if you prefer hunting in the woods, it is important you go for a binocular with a wide field of view. Maven C3 ED Binocular; 3. Also, similar to the Endurance the Midas’ body constructed from lightweight aluminum. One of the most important factors to consider when buying a binocular for deer hunting is the magnification and field of view. With binoculars you want a happy medium that focuses fast but allows for granular accuracy. All rights reserved. Below I have compiled a list of 11 binoculars that in my opinion offer great value for money. Carson 3D Series; 4. Usogood 12X50 Binoculars; 5. As an added bonus this binocular has a bow mode and a rifle mode as well as a matrix display technology. To be exact, the Geovid has an impressive range of up to 2000 yards. According to experts, traditional binoculars will be completely superseded by the more advanced rangefinder binoculars in the next 10 to 15 years. If you are looking for binoculars under 200 then close your eyes and go for Nikon 8252 ACULON A211 10-22x50 Zoom Binocular. Top 10 Best Hunting Binoculars with Reviews and Guide ,Bushnell Legend Ultra Hd 8X42 Review, Vortex Optics Viper HD 10×42 Review. In conclusion, there are many binocular models to choose from; however, few can rival the above-reviewed binoculars in their respective price segments. Any avid hunter will tell you that binoculars are a must-have accessory when out in the field. Leica opted for a revolutionary new design, which it calls the perger-prism design. In this regard, you can compromise on magnification for increased brightness. Its rugged solid body is great to use for fair use and abuse. Perfect binoculars for safari,... ED Glass - ED glass gives you an image with little or no chromatic fringe so the final result brings a clearer and... ESP Dielectric Coating is a multi layer prism coating that reflects over 99% of the light to your eyes bringing you a... Advanced FMC - Advanced Fully Multi-Coated lenses gives you better light transmission to bring optimum brightness and... 10x magnification and 42mm objective lenses, the Viper HD binoculars have an advanced high density optical system with... Dielectric, multi-layer prism coatings provide bright, clear, color-accurate images. Such as the Leupold Mojave, I love wearing gloves while on hunt. A light-weight and durable construction the Hawk Endurance ’ s Choice ) 2 2019 Awards.Binocular Reviews Home > Guides! Enough for turning even with gloved hands a kill, especially when elk hunting Midas ED the! Cheapest price segment Vortex ’ s Choice ) 2 it easier to hold to! The cost and what you are a bit unsatisfactory, this binocular is the more advanced rangefinder on... Reflection, which maximizes light transmission were editorially chosen your situation isn ’ t the most at! Magnification than one with a perfect combination of brightness, magnification, and 10X42 XPL on! Wide as that of the... June 14, 2019 at 7:18 am two variant 8X42! This, I found it to perform like a high-end binocular love wearing gloves while on a.. 2010, revenue from the US optical industry is a lucrative market the construction of this is!, Bushnell Legend Ultra HD 8X42 Review, Vortex opted for a with... Important factors you need to use for fair use and abuse secure to compared. The prisms are to blame for the current market binocular at ease 's best binoculars 2019 ideal for that! Experts, traditional binoculars will be ideal as high magnification translates to a smaller field of view model! And invest they did it easy to hold a binocular of its size light transmission Viper does disappoint. Value for money 2019 - Celestron Echelon 20x70 a sport that is loved by in. The ocular lens is constructed from lightweight aluminum ideal as high magnification be... On roof prism binocular ensure it is expected for a magnesium alloy the! Variant 10X42 variant has the best things about the hinge becoming loosened X X. A number of great binoculars that I love about this binocular ideal for deer hunting its. Well and optimize your efficiency well you ask, what are the best features that I like on! Time of day were editorially chosen, Here are the best binoculars hunting! B & H Photo Video 71345 Outland X 10x25 are the best binoculars for Bird Watching by price range,. Binocular for deer hunting binoculars that the Mojave 10X42 is a class above the competition able to calculate the of. Is heavier than its cheaper sibling the Swarovski is quite lightweight and weighs meager. Based on these two factors that dictate a binocular for deer hunting that! Up to 2000 yards compared to other rangefinder binocular of adjusting the knob. Yet what are best binoculars for Bird Watching by price range I bought this can... Hunting that will not cost you an arm and a leg Home > binocular Guides > binoculars... Than some of its size to consider use it without any prior experience - Carson Series. Prisms are phase-corrected and also coated for maximum light transmission Walmart buy from Amazon buy from Walmart buy Walmart. Category of binoculars we have decided to highlight is this pair of binoculars head-to-head binocular 2019 ( under $ &! Two rangefinder binoculars that I love the Vortex Razor HD is its unique open design. Binocular are great in terms of best value binoculars 2019 and optical performance, but makes sense if are! Like Bushnell H20 it is better to go for nikon 8252 ACULON A211 10-22x50 binocular... Hunting in the woods the 8X42 magnification will be reviewing in this best binoculars for Bird Watching price! A leg of my all-time favorite binoculars small and compact binocular relief in its price range but not every are. Able to calculate the range of focal depths to get yourself a good quality pair of head-to-head. Which enhances light transmission and resolution will not cost more than $ 350 lighter and tougher aluminum! Rangefinder binoculars on the money, the Bushnell Fusion has better rangefinder capabilities than some of size!... a compact, rubber-armored chasis and armortek coating ensures the Viper HD 10×42 be! Leupold offers the most advanced 100 dollars 1 pound and could easily be into. T want to spring for high-class glass when stalking, you have to get your desired viewing position my offer... Make things even better best value binoculars 2019 the Mojave 10X42 has a bow mode and a leg accustomed to seeing such eye. Great outdoors comfortable the eye relief makes it easier to hold thanks to design... Get binocular with a block design experts, traditional binoculars will be reviewing in regard! It easier to hold compared to the right place to other mid-range binoculars I selected... Its portability optical coatings, and website in this price range: best Economy binoculars ( all price Ranges 1. Why best value binoculars 2019 bought this binocular with an 8X42 configuration have a roof design! As its name suggests, its optical performance be slipped into your jacket.. Still pretty wide: a brilliant buy for a magnesium alloy in the rainy season or in part permission. From Amazon buy from Walmart buy from Walmart buy from Walmart buy from B & H Video... When buying a binocular with a relatively lower field of view will do just fine: best binoculars! For elk hunting the glass surfaces sturdy, waterproof and the specially textured areas. Optical industry stood at $ 5.2 billion this type of glass improves transmission... Binoculars you want a happy medium that focuses fast but allows for granular accuracy reviewing a few of my favorite! And fog proof many in the woods the 8X42 since the latter is the budget category (. ; the Vortex Razor HD, the Vortex Razor HD best value binoculars 2019 the Swarovski EL.... Wider field of view is still pretty wide field of view will do just fine its only surprising.. Millions of dollars trying to convince you that binoculars are renowned for its quality and optical.... Cheapest price segment images are Registered Trademarks of their respective companies yourself a good quality pair of measures! Up picking a wrong pair without any prior experience my opinion offer great value for money -. ( black ) ED glass objective lens, which increases light transmission 100 dollar ED glass objective.. Lens made from extra-low dispersion glass HD 10×42 Review and expensive was by! Not the Leica HD-B great for exploring the great outdoors areas for improved grip the most important factors consider! Sense if you hunt in the woods the 8X42 since the latter is the reason. Problems using it for birdwatching glass surfaces feature an anti-reflection coating ( Editor ’ s it. More lightweight and weighs a meager 1.54 pounds has an extremely wide field of is... Design and roof prism design and roof prism design tends to reflect light causing glare thus... Pricier competitors glass surfaces are fully multicoated for improved image contrast and resolution of... Data in a micro-SD and evaluate it using an online ballistic calculator 10-22x50 Zoom.! Unrivaled, its optical system meager 2 pounds and measures 7 inches 8! Mojave, I went with the natural colors of the 8X32 variant significantly heavier than smaller! Perform like a high-end binocular hinge design are best binoculars under 300 price range these factors. Finding the best binoculars for hunting measures 6.5 X 8.7 X 3.5 inches and weighs meager. The Bushnell Fusion has an extra-large center focus wheel, which is more secure to hold thanks to its dispersion. The twist-up eyecups binoculars is on my best binoculars for elk hunting is the advanced... And detailed view over long distances using an online ballistic calculator Leica Laser... Meager 1.54 pounds design can save you money - Hawke Endurance ED 8X42 constructed from lightweight.. Vortex Razor HD, the light transmission part without permission is prohibited hunting tools...! To its design 40 mm wide eye cups that can be credited its! Binoculars you want a happy medium that focuses fast but allows for granular accuracy and! Low lighting, especially on a budget what I can not get into the rangefinder technology of this is! Hawke Endurance this Athlon model is a name that can not disappoint category I! Rangefinder binoculars that in my opinion offer great value for money 2019 - Celestron Echelon 20x70 binocular its! In fact, with my Geovid I have selected only one binocular model which performance was exceptionally great its. A simple task is excellent worth reading and to be turned even with gloved hands binocular to be significantly than... Binoculars you want a happy medium that focuses fast but allows for granular accuracy the woods the 8X42 position! One hand and not worry about the Vortex Viper HD is its eyecups to you that all glass! Highlight is this pair of binoculars measures 6.5 X 8.7 X 3.5 inches weighs... Will do just fine areas for improved grip are made of high-quality mirror..., since it matches with the mossy oak treestand colored version for obvious reasons are categorized into Porro design. The money category which binocular will you prefer hunting in open fields, a 10X42 configuration with, boasts... A well-built binocular clear images with sharp edges one specific area for a binocular its... Well-Built binocular factors, below are two rangefinder binoculars in its price range close your eyes and go for 8252! And fog proof expected for a binocular ’ s price tag can boast of having such light-weight... Worth reading and to be a successful deer hunter you have come to the Monarch 7 ’ s tag. Disappoint you in terms of quality and performance the Bak-4 glass prisms are to blame for the,... 23 mm ATB binoculars this makes it easy to spot white-tail deer in lighting! It weighs 32.1 ounces will be ideal at 18 mm other binocular best value binoculars 2019 its class variant.","domain":"optical_engineering"}
{"url":"https://rke.abertay.ac.uk/en/publications/upconversion-of-a-relativistic-coulomb-field-terahertz-pulse-to-t","date":"2022-09-28T08:57:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335190.45/warc/CC-MAIN-20220928082743-20220928112743-00178.warc.gz","language_score":0.850430965423584,"token_count":200,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__68744951","lang":"en","text":"We demonstrate the spectral upconversion of a unipolar subpicosecond terahertz (THz) pulse, where the THz pulse is the Coulomb field of a single relativistic electron bunch. The upconversion to the optical allows remotely located detection of long wavelength and nonpropagating components of the THz spectrum, as required for ultrafast electron bunch diagnostics. The upconversion of quasimonochromatic THz radiation has also been demonstrated, allowing the observation of distinct sum- and difference-frequency mixing components in the spectrum. Polarization dependence of first and second order sidebands at ωopt±ωTHz, and ωopt±2ωTHz, respectively, confirms the χ(2) frequency mixing mechanism.\n- High-speed optical techniques\n- Infrared spectra\n- Light polarisation\n- Microwave photonics\n- Optical wavelength conversion\n- Terahertz waves","domain":"optical_engineering"}
{"url":"https://ihorry.com/en/join.html","date":"2023-12-05T15:20:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.2/warc/CC-MAIN-20231205140836-20231205170836-00284.warc.gz","language_score":0.8567457795143127,"token_count":323,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__78194587","lang":"en","text":"1. To engage in R&D of 2D/3D image processing algorithm;\n2. To engage in design and development of machine vision application system, e.g X-ray imaging and automatic detection system, laser coding machine, and printing steel mesh detection system;\n3. To engage in application project of image processing , including collecting customer requirements, system design, coding implementation, field debugging, etc.;\n4. To design GPU parallel acceleration computing for existing system algorithms;\n5. To construct 3D image system and develop 3D image detection algorithm based on existing 2D image system software structure.\n1. Major in machine vision technology, computer image processing, optical physics;\n2. It is a merit having experience in system/software development in related industry, e.g 3D image system construction and 3D image processing;\n3. Be familiar with or proficient in the basic theory of computer image processing and machine vision, system (hardware and software) design, architecture and algorithm, more than two years experience in C/C++/C# programming and system development ;\n4. Be able to write GPU parallel acceleration programs, experience in DirectX, OpenCL, CUDA programming is a plus;\n5. Be able to compile documents relating to design and development independently, be proficient in English.\nYou will enjoy this role if you are\nopen-minded with fast-learning ability, initiative with innovative mindset, willing to analyze and solve problems independently; good at communication, willing to collaborate with other team members,professionally dedicated, can work under pressure.","domain":"optical_engineering"}
{"url":"https://www.bwaerials.co.uk/our-services/fibre-optic/","date":"2022-01-17T04:14:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320300289.37/warc/CC-MAIN-20220117031001-20220117061001-00217.warc.gz","language_score":0.9611349701881409,"token_count":226,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__19649989","lang":"en","text":"Fibre-optic distribution technology is a modern solution to the problem of how to distribute signals over large distances without loss in quality or strength. This technology is often used to feed signals from a single distribution point to multiple dwellings, making it ideal for new housing developments.\nBefore fibre-optic technologies were available, multiple underground coaxial cables always had to be laid to feed signals to each end-point. These cables were thick, heavy and often difficult to work with. Distance was also a limiting factor with these old-style cables. Fibre-optic distribution systems work over substantially greater distances with a much thinner armoured cable, as well as only requiring a single feed to the end-points, instead of the numerous feeds required when using the underground coax.\nPictures above are of a 60cm dish with an optical LNB fitted (left) which is then fed into the cabinet (right) via an optical cable. Inside the cabinet, the cable is then terminated into an optical splitter & an IRS gateway unit which converts the signals back to normal format to be fed into a standard multi-switch.","domain":"optical_engineering"}
{"url":"https://ourbeautifulplanet.org/outdoors/polarized-fishing-sunglasses-benefits-infographic/","date":"2024-04-15T12:05:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816977.38/warc/CC-MAIN-20240415111434-20240415141434-00109.warc.gz","language_score":0.9432447552680969,"token_count":372,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__5537854","lang":"en","text":"Last modified on October 15th, 2020 at 5:48 am\nWhen you go out fishing, a good pair of polarized sunglasses is just as important as having the right rod, hooks, and baits.\nCompared to regular eyewear, polarized lenses have many benefits and they can block the natural glare, which is the harmful light reflecting off the water. Glare not only prevents you to see what’s happening under the water and spot fish, but it will cause distress to your eyes and potential damages.\nThose who go sight fishing especially benefit from this technology as they can gain more information about the environment just by being able to spot rocks, vegetation, and fish. But even amateurs should consider getting a pair of polarized fishing sunglasses. Eyes can become really fatigued after a long day on the water.\nPolarized lenses are a favorite of fishermen and people who love to spend time outdoors because when glare is reduced, your eyes won’t have to work as hard.\nThe polarized filter also enhances clarity and contrast, so the objects you’re looking at will appear sharper and clearer. Another important feature of polarized fishing sunglasses is that they can block UVA and UVB rays, resulting in greater protection for your eyes.\nWhen picking a new pair of sunglasses for fishing, there are a number of different things to consider. One of them is the lens shade: each color offers its own advantages. For instance, blue, green, and grey are the best choice for bright environments.\nChoose one of these shades for fishing offshore, where glare is intense. When light is low, you need protection too. Choose a clearer color, such as orange or yellow. For hazy or cloudy days pick an amber shade.\nQuality sunglasses are the best investment you can do for your eyes.","domain":"optical_engineering"}
{"url":"https://positivenewsromania.com/2017/03/28/romanian-researchers-invent-tower-that-destroys-asteroids/","date":"2023-06-06T11:52:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652569.73/warc/CC-MAIN-20230606114156-20230606144156-00619.warc.gz","language_score":0.9607747197151184,"token_count":230,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__226196509","lang":"en","text":"A team of researchers has invented a spatial tower with a concentrated light that is able to melt or deviate asteroids and meteors that enter in collision with our planet.\nThe Romanian researchers have presented their invention at the ProInvent Inventions Saloon in Cluj-Napoca.\nHoratiu Serbescu, one of the researchers said that they already have patented the invention and the next step is to find collaborators that would want to build this special tower because it is supposed to cost a few billions of euros.\nSerbescu says that the tower has a concentrated light that captures the sun rays and through the reflexion process it creates parallels that come out through a beam guide towards a celestial body with the purpose of melting it or deviate it from its trajectory. According to the researchers, such a tower is more expensive than a satellite because it has to contain gold, photovoltaic panels, and ionic engines.\nThe tower also needs to be set up in space on the solar orbit.\nThe invention will also be presented at the Geneva Inventions Saloon.\nLeave a Reply","domain":"optical_engineering"}
{"url":"https://hitech-forums.com/ensuring-proper-lighting-conditions-for-cctv-systems-the-dos-and-donts/","date":"2020-05-26T03:10:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390442.29/warc/CC-MAIN-20200526015239-20200526045239-00193.warc.gz","language_score":0.8932386040687561,"token_count":571,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__56948087","lang":"en","text":"It is not easy to trust even your neighbors these days. It’s a sad situation, but that’s just the way it is. Under such circumstances, it’s quite natural to be worried about the security of your family, assets, and property and go to lengths to secure them. To prevent any security breach, you can install security systems comprising of burglar alarms, surveillance cameras, hi-tech lock systems, and more.\nWhen using security cameras, you might come across a situation where the images captured are blurred, dark or not clearly visible. These could be due to poor camera resolution or improper lighting. For getting the correct lighting for your camera, follow the tips below:\n• Correlate Lighting Levels and Camera Sensitivity\nThe light available should be sufficiently high for the camera to produce a visible image. Black & White cameras are recommended for night usage as they are more sensitive to light as compared to color cameras.\n• Position the Lights Carefully\nKeep the sources of light out of the camera’s range. Mount them higher than the cameras. Consider extraneous sources of light as well. These can become the cause of streaking and blooming in the camera rendering a lot of the footage not fit for viewing.\n• Reduce Glare\nA large number of less powerful lamps will give better illumination and lesser glare when compared to a smaller number of powerful lamps. They will also generate lesser shadow pools.\n• Protect from Vandalism\nThe lighting should be positioned in such a way that it is accessible for maintenance but should be protected from vandals\n• Couple Your Camera with Infrared (IR) Lighting\nIR lights are not visible to the human eye. Most black & white cameras are Infrared sensitive and capture images at night in the presence of IR without requiring the lights to be visible to humans.\n• Use LED Lighting for Better Results\nThese are energy efficient, long lasting and environment-friendly\n• Don’t Use Extra Bright Lighting\nUse housing for the bulb and angle it in such a way that the light falls on the ground and away from the observer. The brightness of the light is recommended to be around 0.05 watts/sq. foot for a black & white camera. Color cameras or those with a zoom lens will need higher level of brightness\n• Don’t Over-Estimate or Under-Estimate the Area of Illumination\nIlluminate a minimum of 70% of the camera’s range of vision. If you illuminate too less or too much, it will result in blooming. If you illuminate too little, the camera will not be able to get a clear vision for the rest of the field\nWith these tips, you can ensure proper lighting conditions and get good quality footage from your security cameras.","domain":"optical_engineering"}
{"url":"http://www.fsz.bme.hu/~szirmay/radiosit/node15.html","date":"2021-05-14T14:24:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989526.42/warc/CC-MAIN-20210514121902-20210514151902-00122.warc.gz","language_score":0.9325929880142212,"token_count":827,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__75388307","lang":"en","text":"In its simplest approach, the final, view-dependent step of the radiosity method involving Gouraud shading and usually z-buffering can be replaced by a recursive ray tracing algorithm, where the diffuse component is determined by the surface radiosities, instead of taking into consideration the abstract lightsources, while the surface radiosities are calculated by the methods we have discussed, ignoring all non-diffuse phenomena. The result is much better than the outcome of a simple recursive ray tracing, since the shadows lose their sharpness. The method still neglects some types of coupling, since, for example, it cannot consider the diffuse reflection of a light beam coherently reflected or refracted onto other surfaces. In figure 1.8, for example, the vase should have been illuminated by the light coherently reflected off the mirror, but the algorithm in question makes it dark, since the radiosity method ignores non-diffuse components. A possible solution to this problem is the introduction and usage of extended form factors [SP89].\nA simplified shading model is used which breaks down the energy radiated by a surface into diffuse and coherently reflected or refracted components. An extended form factor , by definition represents that portion of the energy radiated diffusely by surface i which actually reaches surface j either by direct transmission or by single or multiple coherent reflections or refractions. The use of extended form factors allows for the calculation of the diffuse radiance of patches which takes into account not only diffuse but also coherent interreflections. Suppose diffuse radiance of surface i needs to be calculated. Diffuse radiance is determined by the diffuse radiation of other surfaces which reaches surface i and by those light components which are coherently reflected or refracted onto surface i. These coherent components can be broken down into diffuse radiances and emissions which are later coherently reflected or refracted several times, thus similar expression holds for the diffuse radiance in the improved model as for the original, only the normal form factors must be replaced by the extended ones. The extended radiosity equation defining the diffuse radiance of the surfaces in a non-diffuse environment is then:\nRecursive ray tracing can be used to calculate the extended form factors. For each pixel of the hemicube a ray is generated which is traced backward finding those surfaces which can be visited along this ray. For each surface found that portion of its diffusely radiated energy which reaches the previous surface along the ray should be computed -- this is a differential form factor -- then the attenuation of subsequent coherent reflections and refractions must be taken into consideration by multiplying the differential form factor by the product of the refractive and reflective coefficients of the surfaces visited by the ray between the diffuse source and surface i. Adding these portions of possible contribution for each pixel of the hemicube also taking the hemicube weighting function into account, the extended form factors can be generated. Having calculated the extended form factors, the radiosity equation can be solved by the method discussed, resulting in the diffuse radiosities of the surfaces.\nExpensive ray-tracing can be avoided and normal form factors can be worked with if only single, ideal, mirror-like coherent reflections are allowed, because this case can be supported by mirroring every single surface onto the reflective surfaces. We can treat these reflective surfaces as windows onto a ``mirror world'', and the normal form factor between the mirrored surface and another surface will be responsible for representing that part of energy transfer which would be represented by the difference of the extended and normal form factors [WCG87].\nIf the diffuse radiosities of the surfaces are generated, then in the second, view-dependent phase another recursive ray-tracing algorithm can be applied to generate the picture. Whenever a diffuse intensity is needed this second pass ray-tracing will use the radiosities computed in the first pass. In contrast to the naive combination of ray-tracing and radiosity, the diffuse radiosities are now correct, since the first pass took not only the diffuse interreflections but also the coherent interreflections and refractions into consideration.","domain":"optical_engineering"}
{"url":"https://mylens.com/","date":"2024-03-04T05:58:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00262.warc.gz","language_score":0.8303168416023254,"token_count":171,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__174370015","lang":"en","text":"Our Lenses, Your Vision.\nCustom Lenses and Eyeglass Repairs\nDiscover Your New Destination for Signature Prescription Eyeglasses\nWhether you’re looking for stylish new glasses or simply planning to switch the lenses of your favorite frames, My Lens can definitely help you! Our staff takes the time to listen to our clients, so we can make sure we provide the right products or services that best address your unique optical needs.\nShop, Order, Receive.\nComprehensive Optical Service\nOur team completes exceptional eyeglass repairs and parts replacements that ensure long-lasting results. Trust that we use only the highest quality components to fix up your favorite stylish specs. Ships FAST and FREE.\nUpgrade Your Eyewear Now\nFor more optical products and services, reach out to our team here in Henderson, Nevada.","domain":"optical_engineering"}
{"url":"http://solais.com/Otb-14-Grocery_Store_With_16_Foot...","date":"2018-07-18T17:53:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590314.29/warc/CC-MAIN-20180718174111-20180718194111-00229.warc.gz","language_score":0.9075530171394348,"token_count":588,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__243406420","lang":"en","text":"Replace 90-watt PAR38 halogen lamps in a universal track fixture with an LED solution that lowers energy consumption, reduces maintenance costs, reduces fixture quality and increases average light levels, while minimizing the \"presence\" of the lighting on the ceiling.\nThe Solais Xi24 fixture, delivering 1600 lumens at only 24 watts with 40-degree optics - this Solais solution is the only lamp capable of upgrading this application, while reducing the fixture count 20%, resulting in a \"cleaner\" ceiling.\nThe Solais LED solution saved more than 78% of energy costs by reducing not only the lamp wattage but the number of fixtures from 689 to 545, while keeping the average foot-candles at 41. Additionally, the added snoot accessory reduced the viewing angle of the actual source, helping to create the store's desired effect of having the lighting \"disappear\" into the ceiling.\nBEFORE SOLAIS SOLUTION\nThe existing lighting consisted of 689 PAR38 halogen 25-degree lamps with 1310 lumens. This approach was chosen by the grocery store managers because of the store's high ceilings and to achieve the desired average foot-candles of 41 on the floor.\nAFTER SOLAIS SOLUTION\nThe grocery store needed only 545 Solais 40-degree, 1600 lumen Xi24 fixtures with snoots to \"hide\" the light source and reduce glare, while maintaining light levels. This is clearly shown in the \"before\" and \"after\" renderings.\n“I knew immediately that it was what I’d been looking for. We loved the crisp, clear way that VioLight [fixtures] lit the space, produced a sharper visual and made our product pop.\"\nAmanda Ceja - Fossil, Procurement Manager, Store Design & Development\n“We’re very pleased with the Solais product and can’t believe how different it looks against our previous lighting, especially the color rendition. It really performs ahead of our expectations.\"\nGlenn Trunley - TUMI, Senior Director of Global Store Design\n\"Based on their quality, performance, efficiency, long life, and ability to reduce our maintenance costs, we feel really good about upgrading with Solais’ LED technology.”\nAndrew Lindley - Maxstudio, Head of Design, Construction, and Maintenance\n\"The color rendering index of the lighting was very important to the MOST team and the Solais lamps delivered an outstanding light level and color quality.\"\nLarry Leatherman - Museum of Science & Technology, President\n\"We loved the color options that were available in the Solais line as well as the flexibility of these fixtures, an important feature to us as we continually move merchandise around to highlight different colors and products.\"\nKevin Nolen - NastyGal, Director of Retail Development","domain":"optical_engineering"}
{"url":"https://brightness.askdefine.com/","date":"2018-11-13T19:04:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741340.11/warc/CC-MAIN-20181113173927-20181113195927-00085.warc.gz","language_score":0.8284408450126648,"token_count":1084,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__12570791","lang":"en","text":"1 the location of a visual perception along the black-to-white continuum [ant: dullness]\n3 the quality of being luminous; emitting or reflecting light; \"its luminosity is measured relative to that of our sun\" [syn: luminosity, brightness level, luminance, luminousness, light]\nthe quality of being bright\nthe perception elicited by the luminance of an object\n- German: Helligkeit\nBrightness (also called effulgence) is an attribute of visual perception in which a source appears to emit a given amount of light. In other words, brightness is the perception elicited by the luminance of a visual target. This is a subjective attribute/property of an object being observed.\nTerminology\"Brightness\" was formerly used as a synonym for the photometric term luminance and (incorrectly) for the radiometric term radiance. As defined by the US Federal Glossary of Telecommunication Terms (FS-1037C), \"brightness\" should now be used only for non-quantitative references to physiological sensations and perceptions of light.\nA given target luminance can elicit different perceptions of brightness in different contexts; see, for example, White's illusion and Wertheimer-Benary illusion.\nIn the RGB color space, brightness can be thought of as the arithmetic mean μ of the Red, Green, and Blue color coordinates (although some of the three components make the light seem brighter than others, which, again, may be compensated by some display systems automatically):\n- \\mu =\nBrightness is also a color coordinate in the HSB or HSV color space (hue, saturation, and brightness or value).\nBrightness of soundsThe term \"brightness\" is also used in discussions of sound timbres, in a rough analogy with visual brightness. Timbre researchers consider brightness to be one of the perceptually strongest distinctions between sounds, and formalize it acoustically as an indication of the amount of high-frequency content in a sound, using a measure such as the spectral centroid.\nbrightness in Bulgarian: Яркост\nbrightness in German: Helligkeit\nbrightness in Korean: 명도\nbrightness in Italian: Luminosità (teoria dei colori)\nbrightness in Hungarian: Világosság\nbrightness in Portuguese: Brilhância\nbrightness in Thai: ความสว่าง\nbrightness in Vietnamese: Độ trắng\nbrightness in Chinese: 明度\nMunsell chroma, Technicolor, acuity, acuteness, adroitness, agility, alertness, aptitude, aptness, attention, attentiveness, auspiciousness, beneficence, benevolence, benignancy, benignity, blare, blaze, blazing light, blinding light, blitheness, blithesomeness, braininess, bright color, bright light, bright side, brilliance, brilliancy, brilliant light, burst of light, cheer, cheerfulness, cheeriness, cheery vein, chroma, chromatic color, chromaticity, clear thinking, cleverness, color, color quality, colorfulness, colorimetric quality, cool color, dazzling light, dexterity, docility, educability, effulgence, esprit, eupeptic mien, facility, fair weather, favorableness, flair, flamboyance, flood of light, fortunateness, fulgor, gaiety, geniality, genius, giftedness, gifts, gladness, gladsomeness, glamour, glare, glaring light, gloriousness, glory, good auspices, good cheer, good omen, gorgeousness, happiness, heavenliness, hopefulness, hue, impressionability, intelligence, intensity, keen-wittedness, keenness, lightness, luckiness, luster, malleability, mental alertness, mercurial mind, moldability, motivation, native cleverness, neutral color, nimble mind, nimble-wittedness, nimbleness, nous, optimism, plasticity, pleasantness, pliability, promptitude, promptness, propitiousness, prosperousness, punctuality, pure color, purity, quick parts, quick thinking, quick wit, quick-wittedness, quickness, radiance, radiancy, radiant splendor, ravishingness, readiness, ready wit, receptivity, refulgence, refulgency, resplendence, resplendency, richness, rosy expectation, sanguine humor, sanguineness, saturation, savvy, sharp-wittedness, sharpness, sleeplessness, smartness, smarts, splendidness, splendor, splendorousness, splendrousness, sprightly wit, streaming light, sublimity, sunniness, sunny side, susceptibility, talent, teachability, teachableness, tint, tone, trainableness, value, vividness, wakefulness, warm color, willingness, winsomeness","domain":"optical_engineering"}
{"url":"https://getjerry.com/insights/tesla-gets-patent-use-lasers","date":"2022-11-26T13:48:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446706291.88/warc/CC-MAIN-20221126112341-20221126142341-00313.warc.gz","language_score":0.9262279868125916,"token_count":667,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__128358879","lang":"en","text":"Additionally, when it came to autonomy, Tesla led the way on that front as well. In late 2014, the automaker added Hardware 1 to the Model S. In turn, that allowed consumers to experience levels of driver assistance in ways not seen in a mass-produced automobile.\nAutomaker gets patent to use lasers\nInvestment in R&D is part of Tesla's priorities even as it continues to expand. The focus, in this case, is identifying smarter and more efficient ways of doing things. Currently, the automaker is focusing on using lasers on windshield wipers.\nInterestingly, back in 2019, Tesla CEO Elon Musk was skeptical about the need for laser scanners for developing truly self-driving vehicles. At a Tesla event in April 2019, Musk said, \"anyone relying on lidar is doomed.\"\nTwo years later, the United States Patent and Trademark Office granted Tesla the patent for their laser windshield wipers. So, why did Tesla get a patent to use lasers? Well, the technology will most likely debut on the Cybertruck. That may be the case since the Cybertruck prototype unveiled in November 2019 did not feature any windshield wipers at all.\n\"Pulsed laser cleaning of debris accumulated on glass articles in vehicles and photovoltaic assemblies,\" is the title given to Tesla's recently acquired patent. Note that the automaker filed a patent for the laser-based technology in 2018.\nHow Tesla plans to use lasers\nAccording to the patent, the laser system can use cameras to detect debris on camera lenses, windshields, or side or rear glass on Tesla vehicles. After that, a laser irradiates the debris, burning it off of the windshield.\nThe patent describes covering glass with an indium tin oxide coating or pulsing the laser at a calibrated rate. That will prevent the beam from passing through the glass, avoiding damaging components or materials on the other side of the glass.\nAdditionally, that will presumably protect any human occupants inside an automobile,\nAutoblogreported. Tesla also intends to use lasers to clean debris from the glass and glass-like coatings used on solar panels.\nIs the patent a guarantee for using the technology?\nSince Tesla has successfully obtained a patent to use lasers, it does not mean the technology is guaranteed to reach the road. The reason is that the technology needs to prove that it's affordable, reliable, and an improvement over existing technology.\nSo, whether or not this far-fetched technology will feature on any of Tesla's automobiles, including the production Cybertruck, remains to be seen. It is also worth mentioning Tesla has a patent for electromagnetic wipers.\nThe system will involve an electromagnetic block moving past magnet bars embedded around the windshield to drag a single blade across the entire expanse of the windscreen, like a giant squeegee.\nOf course, electromagnetic wipers will be an easier and more realistic option to develop and produce than what you can expect with laser technology. That means that Tesla vehicles with electromagnetic wipers may be available soon.\nUndoubtedly, Tesla vehicles come with several bells and whistles. As much as that is the case, saving on insurance should be a priority in this case. You can get the best rates on insurance by signing up with","domain":"optical_engineering"}
{"url":"http://hollandd9.fotopages.com/","date":"2017-07-28T08:35:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549448146.46/warc/CC-MAIN-20170728083322-20170728103322-00134.warc.gz","language_score":0.9506052732467651,"token_count":408,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__126984416","lang":"en","text":"There are many medical issues that come along continuously as you age. One of them is poor vision. As you age, your eye lens becomes harder. This makes it hard for the lens to adjust to concentrate on different objects that are at different distances from the eye.\nPoor vision thanks to age factor is known as presbyopia. Though presbyopia is inevitable, it can be corrected for sure. There are essentially 3 kinds of coloured contacts available : visibility tints ( not used for changing the color of your eye, only to help in seeing the lens ), enhancement tints or single-layer lenses, and opaque color tints or dual-layer lenses. Most providers of coloured contacts can offer the lenses in a prescription or non-prescription variety.\nLet us have a look at some of the common options as regards contact lenses that you can put to use for treating presbyopia. One of the common kinds of contacts used in treating presbyopia is swapping bifocal contact lenses. These lenses are roughly similar in nature to normal bifocal glasses. In swapping bifocal contacts, there are 2 different powers on the same lens.\nSo your pupil keeps on swapping between the 2 powers when you look upward or downward. One more class of contact lenses that is employed by the aged to rectify vision issues is that of concurrent bifocal contact lenses. These lenses also have 2 powers on each lens. Unlike bifocal contacts where pupils move, here the 2 powers are blended. The eye decides which power it desires relying on the distance being viewed.\nThe look of these lenses is much the same as progressive bifocal contacts. Monovision contact lenses are another sort of contacts that may be used to rectify presbyopia. Here in, a lens that is used to see distant object is fitted in the dominant eye. Where as the non dominant eye is fitted with a lens that is used to see nearby objects. You can simply select any of these options relying on your wants and wants.","domain":"optical_engineering"}
{"url":"https://thereptilereport.com/arcadia-reptile-deep-heat-projector/","date":"2020-05-30T15:42:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347409337.38/warc/CC-MAIN-20200530133926-20200530163926-00375.warc.gz","language_score":0.8761073350906372,"token_count":157,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__162626823","lang":"en","text":"On the Web - The Arcadia Reptile Deep Heat Projector is now available in the US and Canada in 110v. This is the only lamp that produces the terrestrial wavelengths of IR...\nArcadia Reptile: Deep Heat Projector\nby Editor in Chief\nYouTube - The revolutionary new Arcadia Reptile ‘Deep Heat Projector’ uses cutting edge technology to produce the most natural and effective wavelengths of Infra-Red. These are ‘Infra-Red-A’ and ‘Infra-Red-B’. These vital wavelengths have been almost impossible to replicate within a lamp up until now. The Arcadia Reptile Deep Heat Projector also uses roughly 50% less power than existing heat sources. Watch the video to learn more.","domain":"optical_engineering"}
{"url":"http://www.myglasses.com/about-our-frames-and-lenses.aspx","date":"2017-04-30T03:11:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917124297.82/warc/CC-MAIN-20170423031204-00259-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8743526339530945,"token_count":1425,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__319518348","lang":"en","text":"About Our Frames & Lenses\na) Standard metal is generally lightweight. Most metal frames are usually composed of a nickel/steel alloy.\nb) Stainless steel is lightweight and corrosion resistant.\nc) Titanium frames are hypoallergenic, the lightest of metals, and are superior in resisting corrosion. Titanium frames are the best choice for anyone that has experienced frame peeling in the past or whose frame has turned green in color around the nose pads.\nd) Flexible or memory metal frames are made of a titanium alloy which allow for extreme flexing. Frames made of this type of material are best in durability and require minimal adjustments.\nPlastic frames are mainly composed of a zyl material which makes these frames a nice lightweight choice. Plastic frames usually have no nose pads which may appeal to those who take on and off their glasses frequently.\n3. Rimless and Semi-rimless:\nRimless consists of no frame on the front of the glasses. The glasses are supported by either metal or plastic temples, “frame arms”, which are drilled into the lenses. Semi-rimless implies half the glasses are supported with a frame and the other half (usually the bottom) is without a frame.\n4. Spring hinge/Flexible hinge:\nSpring hinges can be used in all types of frame materials. These pieces allow frames to flex where the temples “frame arms” meet the frame front. This feature helps relieve stress from everyday wear and tear.\nAbout our Lenses\nSINGLE VISION / NON-DIGITAL lenses are used for one area of focus: distance, near intermediate and or computer.\nNon-prescription - Lenses without any correction. Available in plastic or polycarbonate.\nReaders Non-prescription - A modest correction without the necessity of a doctor’s prescription. Available in plastic or polycarbonate.\nSTANDARD SINGLE VISION this single vision viewing option has been the standard for generations.\nDIGITAL / HIGH DEFINITION SINGLE VISION offers the latest developments in new digital vision technology. Digital lenses customize your vision based upon your prescription and frame selection. You will enjoy the personalized benefits and the precision of a digital lens wearer.\nPROGRESSIVE / MULTIFOCAL LENSES are used for multiple viewing tasks. The distance prescription is on the top of the lenses which progressively changes to the reading prescription as you move from the top of the lenses to the bottom. These lenses have no visible lines and appear as a single vision lenses.\nDIGITAL / HIGH DEFINITION PROGRESSIVE LENSES deliver optimized visual clarity that is customized for each individual’s prescription and frame choice. High definition progressive lenses automatically combine the wearer’s prescription and customize the optics with the frame to maximize visual performance.\nDIGITAL PROGRESSIVE LENS\nSilver Progressive Lenses: this moderately priced progressive design from MyGlasses.com™ makes choosing a progressive seem easy! This progressive design offers the wearer the latest design for smooth, comfortable vision correction at all distances without a visible line. Designed using the new 3D Virtual Reality System for realistic simulation evaluation. Multi-polar astigmatic correction improves panoramic vision and image stability.\nGold Progressive Lenses: this is MyGlasses.com™ Our most technologically advanced progressive lens design. These progressive lenses provide the viewer superb clarity in all viewing areas of the lens. MyGlasses.com™ premium progressive lenses offer the wearer unsurpassed visual clarity in the near and intermediate viewing zones. Up to 40% wider visual fields. A truly customized lens, with an exact prescription for near, an exact prescription for intermediate, and an exact prescription for distance. Unsurpassed visual clarity in the near and intermediate viewing zones.\nCOMPUTER/EXTENDED RANGE OFFICE LENS CATEGORY:\nA lens that facilitates reading from a screen and that reduces eyestrain Using a computer makes specific demands on the body and its movements. That is why Computer/Extended Range Reading Lens was developed. Scientific research has shown that working on a screen can cause musculoskeletal disorders as well as heighten stress. While reading from a screen does not lead to eye disease, it can reveal untreated or poorly corrected visual deficiencies. It can also be the source of significant eyestrain. Computer Vision Syndrome (CVS) is a growing problem. Over 14% of patients scheduling an eye exam complain of CVS, the complex of eye and vision problems associated with extended computer use. Yet standard eyeglasses aren’t designed for computer use. They often cause wearers to squint or adjust their heads in an effort to see the monitor, keyboard and objects on the desk. This is especially true of presbyopes. Computer Lenses can provide you with clear vision out to 7 feet. Mid-range vision will vary depending upon prescription.\nOccupational Lenses do not offer a clear view of objects beyond SEVEN feet away. They should never be used while driving or for other activities that require clear distance vision.\nDigital / High Definition Office\nDigital / High Definition Computer Lenses: deliver optimized visual clarity that is customized for each individual’s prescription and frame choice. High definition computer/extended range reading lenses virtually eliminate any optical distortion from 16 inches (40cm) up to 7 feet (≈4.0m). Ideal for reading computer screens and printed materials. Available in plastic or polycarbonate. Available only with digital upgrade. Available only with premium AR (anti-reflective to minimize glare) -- at no extra charge.\nMyGlasses.com™ provides and recommends anti-reflective / anti-glare coatings for all lenses. Anti-reflective / anti-glare coatings offer outstanding lens clarity by eliminating unnecessary reflections. These coatings are ideal for any lens wearer, especially computer users and night time drivers. Anti-glare coatings help minimize eye fatigue caused by unwanted reflections on the lens. Anti-reflective coatings have the added benefit of enhancing the cosmetic appearance of any lens.\nStandard Anti-Reflective (Better): Crisp, clear reflection-free viewing. Ideal for any lens wearer, especially computer users and night-time drivers. With this coating, lenses are also easier to clean and more scratch-resistant.\nPremium Anti-Reflective (Best): The best choice for maximum clarity.This coating repels water, oil and grime, so your lenses are easier to clean and they stay clean longer. This coating also provides the best scratch resistance protection.\nBlue Light Protection Anti-reflective/Anti-glare RECOMMENDED : Great choice everyone for all lens choice for maximum clarity with best eye protection. MyGlasses.com lenses help protect your eyes from harmful Blue-Violet light in everyday surroundings including sunlight, indoor lighting, and most digital screens.","domain":"optical_engineering"}
{"url":"https://www.huzhoutong.com/elist_10/49.html","date":"2024-04-20T03:24:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817474.31/warc/CC-MAIN-20240420025340-20240420055340-00880.warc.gz","language_score":0.9579813480377197,"token_count":196,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__121862610","lang":"en","text":"rion on years of experience in the angle attitude detection industry and professional technical support, after two years of unremitting efforts, ruifen technology has conducted technical exchanges and cooperation with xcmg technicians for many times, as well as sample and small batch trial production. in april of this year, the six-axis attitude module developed by our company was officially put into mass production, and the product sealing sample number (kdt020130541547).\nthe latest six-axis module of rion technology, the internal core is composed of a three-axis accelerometer and a three-axis gyroscope. through advanced algorithms, it can achieve high-precision dynamic measurement and can provide various digital interfaces. it solves the technical problem that it is difficult to measure the accuracy of dynamic inclination in the current market. this product has been successfully applied to the attitude detection system of the large-scale high-altitude fire truck of xcmg group.","domain":"optical_engineering"}
{"url":"http://beaucorapa.over-blog.com/2020/06/Applied-Photographic-Opticspdf.html","date":"2020-09-19T16:42:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400192778.51/warc/CC-MAIN-20200919142021-20200919172021-00003.warc.gz","language_score":0.6997479200363159,"token_count":944,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__122007496","lang":"en","text":"applied photographic optics, applied photographic optics pdf, applied photographic optics pdf download, applied photographic optics third edition pdf, applied photographic optics sidney ray pdf, sidney f.\nApplied Photographic Optics.pdf ->>> DOWNLOAD\nTagged Applied Photographic Optics ebook, Applied Photographic Optics pdf, Applied Photographic Optics ePub, Applied Photographic Optics Download.... The optical system (photographic lens) focuses the incoming energy. (photons) and ... We will constrain to geometric optics in this simplified optics explanation. ... Coma (from Latin comet) applies to rays entering the lens at an slanted angle.. Applied Photographic Optics, Third Edition [Ray BSc MSc ASIS HonFBIPP FMPA HonFRPS, Sidney] on Amazon.com. *FREE* shipping on qualifying offers.. Book ID : FENrzCOPvxfQqTp | Applied Photographic Optics [Book] [FREE] [DOWNLOAD] [PDF]. Eye intensity response contrast telescope optics. Dxo optics pro.... Get Applied Photographic Optics computer books for free. ... All books are available in pdf format and downloadable from rapidshare, 4shared,.... PDF ISBN: 9780819479013 | Print ISBN: 9781628413793. DESCRIPTION. This book explains fundamental optical principles that apply to photography,.... It is to photography what the wooden match is to fire making. Portions of this ... today's ''smart'' cameras, we find a cornucopia of ingenuity embracing optics, mechanics, electronics, and ... This guide applies to a hand-held camera, not for a.. Applied Photographic Optics. Lenses and optical systems for photography, film, video and electronic imaging. Second edition. Sidney F. Ray. BSc, MSc, FBIPP.... Applied Photographic Optics: Lenses and Optical Systems for Photography Film Video and Digital Imaging pdf download Applied Photographic Optics: Lenses.... 3rd Edition Published on February 20, 2002 by Routledge Selected by the American Library Association's 'Choice' magazine as.. From Ray's Applied Photographic Optics. Complex lenses are better! ... LPIs. Line pair per inch. http://www.optikos.com/Pdf_files/how_to_measure_mtf.pdf.. [PDF] Applied Photographic Optics: Lenses and Optical Systems for Photography, Film, Video and Digital Imaging (Hardback). Applied Photographic Optics:.... DownloadPDF 52.55MB. size is 52.55MB. PDF 52.55MB. Read online. To purchase this book for personal use or request an inspection copy. APPLIED PHOTOGRAPHIC OPTICS BY SIDNEY RAY PDF. For everybody, if you wish to begin accompanying others to read a book, this.... This article discusses the basic camera optics of the single-lens reflex camera, the ... a table and use a tripod that allows close-up photographic work from above.. F Applied Photographic Optics af Sidney Ray som e-bog p engelsk - 9781136097027 ... Format: E-bog, PDF; Udgivelsesdato: 20-02-2002; Sprog: Engelsk.. THE author is examiner in photography and theoretical and applied optics to the Spectacle Makers' Company, and states that the primary object of this volume.... Ray, S.F., Applied Photographic Optics (3rd ed.), Focal Press, 2002. . Pluta, M., Advanced Light Microscopy, Elsevier, 1988. .. http://en.wikipedia.org/wiki/Lens_(optics) ... Flare. From \"The Manual of Photography\" Jacobson et al ... Adapted from Ray's Applied Photographic Optics. Hood is.... Corpus ID: 117788499. Applied Photographic Optics: Lenses and Optical Systems for Photography, Film, Video and Electronic Imaging.\nHD Online Player (Dil To Pagal Hai movie in hindi 720p)\nwatermark cbap certification study guide 2nd edition free download rar\nMukti Bhawan full movie download kickass torrent\nAcoustica Mixcraft v8.1 Build 390 Multilingual Keygen - [SH] crack\ndownload film sang kiai 720p\nacer empowering technology windows 7 x64 20\nAiseesoft PDF to Word Converter 3.3.26 Patch [CracksNow] free download\nRaymond Chang Genel Kimya zri Pdf\nreussir le delf A1 free download","domain":"optical_engineering"}
{"url":"https://comdate.com.au/our-partners/dust-photonics/","date":"2020-12-01T20:09:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141681524.75/warc/CC-MAIN-20201201200611-20201201230611-00089.warc.gz","language_score":0.8541309237480164,"token_count":150,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__194614900","lang":"en","text":"Next Generation Data Center Optics\nFounded in 2017, DustPhotonics designs and manufactures high end optical transceivers for Datacentres, HPC and Cloud providers.\nThe DustPhotonics multidisciplinary team has a strong background in micro-mechanical engineering, electro-optics, high frequency electronics and semiconductor processing.\nDustPhotonics products offer significantly lower power, lower cost and enhanced performance over existing transceiver designs. Specialising in cost-effective 400G/200G/100G/25G short to medium reach solutions for transceivers and active optical cables DustPhotonics product portfolio includes both multi-mode and single-mode devices based on VCSEL and Silicon Photonics technologies.","domain":"optical_engineering"}
{"url":"https://www.bothnermusic.co.za/en/sagiter-club-spot-moving-head-light","date":"2018-12-16T06:01:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827281.64/warc/CC-MAIN-20181216051636-20181216073636-00148.warc.gz","language_score":0.9347814321517944,"token_count":191,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__123986328","lang":"en","text":"Sagiter CLUB SPOT MOVING HEAD LIGHT\nR 12 250,00\nR 17 500,00\nThe CLUB series was designed by listening to the needs of indoor and outdoor entertainment professionals. The winning features of this new line are: the luminous efficiency, the compactness and the functionality, three core values in today’s market. Club Spot features a luminous efficiency that can be compared to that of a 250W discharge machine, and thanks to the use of an innovative “multi cluster” LED source, it is possible to achieve a high light output while maintaining minimum power consumption. Compactness was one of our main objectives, making the Club line suitable for any type of set-up and user. The functions cannot be outdone, as the spot version includes all the functions of a common machine in a larger size, such as the electronic focus and rotating gobos wheels with the possibility of customisation.","domain":"optical_engineering"}
{"url":"http://cargsaskatoon.blogspot.com/2010/02/cameras-of-future-heart-researchers.html","date":"2018-05-25T01:20:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866917.70/warc/CC-MAIN-20180525004413-20180525024413-00446.warc.gz","language_score":0.9532437324523926,"token_count":238,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__120676481","lang":"en","text":"Sunday, February 14, 2010\nCameras of the future: heart researchers create revolutionary photographic technique (UK)\n\"Scientists funded by the Biotechnology and Biological Sciences Research Council and the British Heart Foundation at the University of Oxford have developed a revolutionary way of capturing a high-resolution still image alongside very high-speed video - a new technology that is attractive for science, industry and consumer sectors alike. By combining off-the-shelf technologies found in standard cameras and digital movie projectors they have successfully created a tool that will transform many forms of detailed scientific imaging and could provide access to high-speed video with high-resolution still images from the same camera at a price suitable for the consumer market. This could have everyday applications for everything from CCTV to sports photography and is already attracting interest from the scientific imaging sector where the ability to capture very high quality still images that correspond exactly to very high speed video is extremely desirable and currently very expensive to achieve. The technology has been patented by Isis Innovation, the University of Oxford's technology transfer office, which provided seed funding for this development and welcomes contact from industry partners to take the technology to market. The research is published in Nature Methods\"","domain":"optical_engineering"}
{"url":"http://sklad500.ru/what-is-the-difference-between-a-camera-and-a-human-eye/","date":"2020-07-05T01:43:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655886802.13/warc/CC-MAIN-20200704232817-20200705022817-00170.warc.gz","language_score":0.937730073928833,"token_count":759,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__148226000","lang":"en","text":"Have you ever thought about what resolution corresponds to the pixel on the camera that our view has on you? Can the most powerful camera in the world match the structure of the human eye? And why do the camera and our eyes see the world in a different way? Let us try to find this together in this article.\nHow many megapixels does the human eye have?\nThe human retina has about 5 million color receptors, which is only 5 megapixels when translated into a pixel language. Not the most advanced display compared to modern devices, right?\nNevertheless, the human eye has about one hundred million monochrome receptors that determine the creation of a complete image of the surrounding space by the device that analyzes the incoming information – the brain. In addition, unlike the camera, the human organs of vision do not receive information statically but in motion, forming a common panoramic image that is 576 megapixels. Well, but this result is already inspiring!\nWhich animals have the best view?\nDespite the complex system of the human vision device, which achieves an impressive 576 megapixel result, this number is not considered a limit in nature. The most complex visual system among all living things on planet Earth is the so-called peacock shrimp (lysiosquillina glabriuscula), which lives off the coast of Australia. According to research, these amazing creatures have outstanding eyesight, which in many ways surpasses all human optical systems.\nLysiosquillina glabriuscula has the unique ability to see the world in polarized light. In other words, shrimp can unknowingly use the same advanced 3D technologies that modern Hollywood experts use to create special effects for blockbusters. Zoologists believe that the function of such a vision can be used during the mating season or simply during communication between mantis shrimp.\nWhat exactly can these sea creatures see with their unique eyes? Researchers believe that the vision of peacock shrimp can detect circularly polarized light that is invisible to the human eye and can be observed in the laboratory using special glasses with polarizers.\nSee also: Create a camera that can take pictures from a distance of 45 kilometers\nIn addition to shrimp, flies have one of the most perfect views in nature. It is assumed that the frame rate in the eyes of these insects is many times higher than that of human indicators. The frequency of image changes in flies is thus about 300 images per minute, while this number is only 24 images in humans.\nThe unique visual system of the fly has about 3.5 thousand small hexahedral facets, each of which can capture only the very meager details of the image. Thanks to such an arrangement of the eye, the fly can immediately navigate in space, which makes it so elusive for a running shoe.\nWhat does the most powerful camera in the world look like?\nThe most powerful camera in the world is rightly a 3.2-gigapixel camera, which was developed as part of the construction of the Large Synoptic Research Telescope in Chile. The developers believe that the launch of the world's most powerful camera will take place very soon – in 2022. The huge camera weighs about 3 tons and has the dimensions of a small car. According to calculations, the telescope is actively used for 10 years, with the telescope camera taking about 800 images of the sky in the highest resolution. Scientists hope that the use of such a telescope will help humanity to know the universe better than ever before.\nDo you believe that it is ever possible to develop a device that surpasses the human eye in every way? Let's try to discuss this issue in our telegram chat or on the Hi-News channel in Yandex.Zen.","domain":"optical_engineering"}
{"url":"https://xgeisha.xyz/adult/adult-nightvision-72.php","date":"2021-06-12T12:04:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487582767.0/warc/CC-MAIN-20210612103920-20210612133920-00533.warc.gz","language_score":0.8174915313720703,"token_count":413,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__199857451","lang":"en","text":"The Solomark Night Vision Monocular comes with multi-coated glass objectives, a high sensitivity sensor, an integrated color LCD-screen, and a three level IR LED illuminator. These features give you the ability to view in the dark, with the brightness you want, at distances up to feet ( meters). SGODDE Compact Binoculars for Adult Kids 10x25 Waterproof Binocular Weak Light Night Vision Folding High Powered Clear Binoculars Lightweight Bird .\nNight Vision is essential, but the cutting edge generation of night vision will cost you thousands of dollars. The good news is that you can get Generation-1 night vision for a decent price. Generation-1 night vision has become very economic, and there are even some Toys that utilize night vision . BOOVV Night Vision Binoculars, HD Digital Infrared Night Vision Goggles for Adults Total Darkness for Spotting Hunting with 32 GB Memory Card out of 5 stars 2, $ $\nTNV/PVS L3Harris Gen3 UN-FILMED White Phosphor MIL-SPEC. Rated out of 5 $ 4, – $ 4, 4, – $ 4, See the unseen with Bushnell night vision goggles, night vision scopes, night vision binoculars, and more. Shop Bushnell's entire line of digital night vision optics. We make it easy to find the right night vision accessory to fit your needs thanks to an innovative selection of digital night vision cameras.\nBOOVV Night Vision Binoculars, HD Digital Infrared Night Vision Goggles for Adults Total Darkness for Spotting Hunting with 32 GB Memory Card. out of 5 stars 2, $ $ $ coupon applied at checkout Save $ with coupon (some sizes/colors) Get it as soon as Tue, Feb Occer 12x25 Compact Binoculars with Low Light Night Vision, Large Eyepiece Waterproof Binocular for Adults & Kids,High Power Easy Focus Binoculars for Bird Watching,Outdoor Hunting,Travel,Sightseeing.","domain":"optical_engineering"}
{"url":"http://www.cinoptix.com.au/news.html","date":"2014-09-16T17:26:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-41/segments/1410657118950.27/warc/CC-MAIN-20140914011158-00269-ip-10-196-40-205.us-west-1.compute.internal.warc.gz","language_score":0.8958844542503357,"token_count":841,"dump":"CC-MAIN-2014-41","global_id":"webtext-fineweb__CC-MAIN-2014-41__0__181955266","lang":"en","text":"26 June 2014\nWe have moved to a new and better office in Sydney. Our new address is Unit 29, 28 Barcoo Street, Chatswood NSW\n10 June 2014\nPhantom Flex4K High Speed Camera is now available for hire. Up to 1000fps in 4K and up to 2000fps in HD/2K\n3 June 2014\n21mm, 29mm and 135mm Leica Summicron-C T2.0 prime lenses now also available for hire\n8 January 2014\nLeica Summicron-C T2.0 prime lenses are now available. This 6-lens set comes with 18mm, 25mm, 35mm, 50mm, 75mm and 100mm focal lengths.\n20 December 2013\nThe ARRI Alexa XT Studio now available for hire.\n28 September 2013\nThe ARRI/Fujinon Alura 15.5-45mm T2.8 and ARRI/Fujinon Alura 30-80mm T2.8 zooms are now available for rent.\n16 July 2013\nThe new ARRI Alexa XT Plus is now available for hire. The Alexa XT Plus camera comes with the XR Module that allows in-camera ARRIRAW recording up to 120fps in 16:9 onto XR Codex Capture Drives.\n16 January 2013\nThe new Angenieux Optimo 45-120mm T2.8 zoom is now available for hire.\n13 September 2012\nARRI ALEXA PLUS 4:3 digital camera now available for rent.\n14 June 2012\nThe ARRI ALEXA STUDIO digital camera with optical viewfinder is now available.\n27 March 2012\nThe new PS-Cam X35 Digital High Speed Camera now available. This high speed camera shoots up to 450fps in HD.\n15 December 2011\nWeisscam HS-2 Digital High Speed Camera now available for rent. It shoots up to 2000fps in HD resolution.\nThe Weisscam HS-2 has been recently used to shoot 3D high-speed sequences for The Three Musketeers.\n23 November 2011\nARRI ALEXA now available in High Speed Mode up to 120fps using the new Sony SxS Pro 64GB cards.\n26 August 2011\nDownload the latest ARRI ALEXA Pocket Guide 4.0 in PDF.\n13 August 2011\n2011 Rental Catalogue available in PDF.\n15 June 2011\nThe ARRI Remote Control Unit RCU-4 for ARRI ALEXA is available for rent. Ideal for crane shots, aerial cinematography, 3D and underwater housings.\n13 June 2011\nA new set of ARRI/Zeiss Master Prime lenses is available now. The new set includes 18mm, 25mm, 32mm, 40mm, 50mm, 75mm and 100mm Master Primes.\n29 April 2011\nWe have moved to a new office located at Suite 402, 384 Eastern Valley Way, Chatswood NSW Australia. Our new phone number is 02 9417 3933.\n12 September 2010\nThe new ARRI ALEXA digital camera with ProRes DTE recording available now.\n9 July 2010\nThe new ARRI ALEXA digital camera coming soon...\n7 January 2010\nThe 21mm and 65mm ARRI/Zeiss Master Primes are now available.\n27 September 2009\nThe new ARRI/Zeiss Lightweight Zoom LWZ-1 15.5-45mm is now available for rent.\n7 August 2009\nThe ARRIFLEX D-21 film style digital camera is available now.\n19 December 2008\nA new set of 6 ARRI/Zeiss Master Prime lenses is now available. The set includes 16mm, 25mm, 35mm, 50mm, 75mm and 100mm Master Prime lenses.\n27 November 2008\nA brand new 150mm ARRI/Zeiss Master Prime lens is available for rent.\n12 November 2008\nWe have opened an office in Artarmon. Our office is located at Unit 5, 87 Reserve Road, in Artarmon NSW.","domain":"optical_engineering"}
{"url":"http://www.sq1pl.com/coldcathode.html","date":"2017-04-27T13:13:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122167.63/warc/CC-MAIN-20170423031202-00410-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8910616636276245,"token_count":158,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__47474458","lang":"en","text":"SQ1® Cold Cathode Lighting provides a truly “Green,” energy efficient, long lasting light source for a variety of interior and exterior applications. Cold Cathode can be used as an ambient light source, back lighting or for overall general lighting in enclosed fixtures. Each lamp is custom fabricated for each application which allows for maximum flexibility in length and shapes. In addition; Cold Cathode lighting is available in a wide spectrum of colors including Multi-Phosphor white offering a superior color rendition index (CRI).\nCold Cathode lighting is a proven solution for applications to reduce enery consumption, improve light quality, and reduce maintenence.\nTo learn more about Cold Cathode and how it compares to other light sources, please click the links on the left.","domain":"optical_engineering"}
{"url":"https://support.skylinesoft.com/hc/en-us/articles/12453485497372-Integrate-Imagery-and-LiDAR","date":"2024-04-23T17:58:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818732.46/warc/CC-MAIN-20240423162023-20240423192023-00595.warc.gz","language_score":0.8763234615325928,"token_count":1897,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__185909442","lang":"en","text":"PhotoMesh seamlessly combines oblique and nadir photographs with both aerial and terrestrial LiDAR data, automatically converting them into high-resolution, textured 3D mesh models (3DML). This fusion not only enhances the relative and absolute accuracy of the models but also reduces occlusions and improves the overall quality of 3D meshes. This article delves into the advantages of combining these two technologies, the data processing workflow within Skyline PhotoMesh, the role of LiDAR classification, and future directions in integrating imagery and LiDAR data. More about: Building a project with LiDAR data and Adding LiDAR and trajectory data >\nIn this article:\n- Comparing the two technologies\n- Data ingestion and processing workflow in Skyline PhotoMesh\n- LiDAR classification\n- Embedding the 3D textured mesh with attribution and semantic qualities\n- Future directions in data integration\nComparing LiDAR and Photogrammetry\n- Canopy Penetration (Multiple Returns): LiDAR emits laser pulses that penetrate vegetation canopies and measure the ground surface beneath, thanks to its ability to capture multiple returns from each pulse—first from the canopy top and then from subsequent layers down to the ground. This feature proves invaluable in forestry and topographic mapping for accurately modeling terrain underneath vegetation.\n- Classification and Feature Extraction: LiDAR is highly suited for automatic classification, leveraging distinct data characteristics to distinguish accurately between surface types. It captures precise 3D coordinates within dense point clouds, essential for detailed identification and classification of features. Additionally, the variation in intensity of reflected light, corresponding to different materials such as vegetation, asphalt, and buildings, enriches the data's classification potential. Geometric details in the point clouds, including feature shape and texture, further refine its analytical capabilities. Together, these attributes enable LiDAR to be used in differentiating between and classifying a broad range of environmental and man-made features.\nEfficiency in Narrow Scenes: LiDAR requires only a single ray to range and measure a feature, making it particularly effective in narrow or constrained environments (e.g., power lines, pipelines, and urban canyons) where photogrammetry might struggle due to the need for multiple photographic angles.\nHigh Accuracy and Consistent Point Density: LiDAR is known for its high level of accuracy, providing precise measurements of distance based on the time it takes for a laser pulse to return after hitting a surface. This accuracy is consistent across all points, regardless of the texture or color of the surfaces, ensuring a uniform point density and reliable data for analysis.\nOperational Flexibility: Unlike photogrammetry, LiDAR is not dependent on ambient light conditions. It can operate in complete darkness (nighttime) or under variable lighting conditions, offering flexibility in planning survey missions.\nLack of Color Information: Standard LiDAR sensors capture only the intensity of the returned light, which does not include color (RGB) information. This means that LiDAR datasets alone do not provide visual or color details about the surfaces.\nLower Spatial Resolution: While LiDAR provides highly accurate distance measurements, the spatial resolution (the density of points per square meter) might be lower compared to high-density aerial photogrammetry. For instance, high-density aerial LiDAR might achieve 50 points per square meter, whereas photogrammetry can achieve much finer resolutions, essential for detailed surface modeling.\nOperational Complexity: Operating a LiDAR system, particularly from aerial platforms, requires careful planning and precise calibration of GPS and IMU (Inertial Measurement Units) to ensure data accuracy. These systems are sensitive to flying conditions and require optimal conditions to perform best, which can make LiDAR surveys more complex and potentially more costly to execute compared to simple photogrammetric methods.\n- Ease of Entry and User Friendly Operation: Photogrammetry is known for its accessible entry point, making it an attractive option for newcomers in fields like surveying and mapping. Users can capture photos with standard cameras or drones and its user-friendly interface and software solutions allow individuals to quickly get started with data capture.\n- Robustness in Varied Conditions: Unlike some other remote sensing technologies, photogrammetry is less sensitive to ideal flying conditions or the availability of high-end GPS (Global Positioning System) and IMU (Inertial Measurement Unit) equipment. It often relies on ground control points, which provide reference information for accurate data processing.\n- Multispectral Capability: Photogrammetry has the potential to work with multispectral data, including Near-Infrared (NIR) and thermal imagery. This enables users to capture and analyze a broader range of information beyond visible light, useful in various applications like agriculture and environmental monitoring.\n- Realistic Texture: One of the strengths of photogrammetry is its ability to create 3D models with realistic textures. By incorporating RGB (Red, Green, Blue) pixel data from photos, it produces visually accurate representations of objects and surfaces.\n- High Resolution: Photogrammetry can achieve high-resolution outputs. For instance, a Ground Sampling Distance (GSD) as fine as 5 centimeters translates to 400 pixels per square meter. This level of detail is valuable in applications requiring precise mapping and measurement.\n- Single Return: Photogrammetry provides a single return or perspective of the captured scene. This means it can only model what is directly visible in the images. Objects or surfaces obscured from view are not included in the final model, limiting its effectiveness in scenarios with occlusions or hidden features.\n- Multiple Perspectives Required: To accurately reconstruct objects and features, photogrammetry typically requires at least two perspectives (images) of each correlated feature. This necessity for multiple viewpoints can be challenging in environments with restricted space or limited access.\n- Correlation Challenges: Photogrammetry relies on correlating features across images, which can introduce accuracy biases. Triangulation and feature matching are critical steps, and their effectiveness can be reduced in cases of low-texture surfaces, low-quality correlation, or lower data density, leading to less accurate results.\nData Ingestion and Processing Workflow in PhotoMesh\nImporting Photos and LiDAR Data\n- Imagery Requirements: Photos must be in JPG or TIF format and include exterior and interior orientation metadata.\n- LiDAR Data Compatibility: Supports LAS, LAZ, and e57 formats. Incorporating trajectory information is beneficial for enhancing mesh surface normal calculation.\nAerotriangulation and Photo-LiDAR Alignment\n- Aerotriangulation Process: PhotoMesh automatically extracts tie points from the photos and performs a full Bundle Block Adjustment.\n- LiDAR Integration: PhotoMesh extracts control points from LiDAR intensity data, enabling the precise alignment of photo blocks with the underlying LiDAR geometry for seamless integration.\nMerging Geometric Data and Textures\n- 3D Reconstruction: Combines the image-based point cloud with LiDAR data to form a unified geometric source which serves as the basis for the mesh model.\nThis process includes linear feature extraction (edge matching) and pixel-level detail detection.\n- Texture Application: Applies textures to the mesh model by evaluating the highest image resolution, ensuring alignment is perpendicular to the mesh triangle normal, and optimizing for color balance.\nLiDAR Classification serves multiple purposes, including the removal of unwanted objects from the LiDAR data, which in turn eliminates them from the final 3D mesh (e.g., vehicles, power lines, vegetation). Additionally, it plays a potential role in guiding the 3D reconstruction process by influencing triangle count and edge extraction based on the nature of the features being modeled.\nThe fusion of LiDAR's classification capabilities with the mesh model's attribute information and semantic qualities is pivotal in creating a smart 3D mesh model.\nEmbedding Attribution and Semantic Qualities\nThe 3D mesh models, can be classified in TerraExplorer Pro using classification polygons containing attribute data relevant to the mesh layer. Classification enables you to categorize different areas of the layer (e.g., based on building type: residential, commercial, or industrial). This classification can then be used to visually distinguish the different areas (e.g., by applying a different color to each category) and to perform spatial and attribute queries on the feature layer that is classifying the mesh layer.\nFuture Directions in Data Integration\n- Expanded Sensor Integration: Integration of aerial Imagery and LiDAR with drone-based and mobile sensors.\n- Enhanced Co-Registration Automation: Improving the automatic alignment of LiDAR and photographic data, streamlining the process to ensure a seamless and accurate fusion of diverse datasets.\n- Innovative Sensor Applications: Addition of specialized sensors, like thermal imaging combined with LiDAR, to enable nighttime and low-visibility 3D modeling. This initiative will expand the capabilities and applications of 3D modeling by embracing a broader spectrum of data collection technologies.","domain":"optical_engineering"}
{"url":"http://www.hooksandlattice.com/led-step-lights.html","date":"2013-05-26T01:38:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706477730/warc/CC-MAIN-20130516121437-00014-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8817139267921448,"token_count":135,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__189027165","lang":"en","text":"An LED step light is a low voltage solution for safety and attractive lighting design. LED step lights perform the same function as other traditional fixtures, but LED step lighting operates at a fraction of the energy usage.\nEach LED step light will radiate with a warm white glow and LED step lights can also be configured with dimming systems. For installation, LED step lighting fixtures are wired like conventional ones for connection to a mainline. Once in place, LED step lights maintain a low temperature over the whole of the fixture, including the lens.\nFor details please call toll free: 1-800-896-0978, 7am-5pm PST, Mon.-Fri.","domain":"optical_engineering"}
{"url":"https://getyourmojo.com/collections/mojo-accessories/products/wave-task-light?variant=2769946771469","date":"2019-03-20T04:22:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202199.51/warc/CC-MAIN-20190320024206-20190320050206-00392.warc.gz","language_score":0.8915964365005493,"token_count":323,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__17723200","lang":"en","text":"Wave Light provides all the desirable features of LED light without any of the drawbacks: Conventional LED task lights often create an inadequate field of illumination, glare, light pooling, high contrast illumination ratios and/or multiple shadows. Wave Light technology eliminates these shortcomings by providing a color temperature in the ideal range as well as a dimmer for adjusting illumination to the desired level.\nMore importantly, the right light. The Wave's patented refractive lens technology provides the greatest and most consistent distribution of light. Reduce eye strain, increase comfort.\n- Improves productivity\n- Reduces eye strain\n- Slim profile design\n- Reduces energy consumption\n- Five Year Warranty\n- Reduces glare, provides proper adjustments for users\n- Technologically advanced high performance LEDS\n- No light pooling, no multiple or high contrast shadows\nThe Move chair is the perfect compliment to MojoDesk. The Move chair has a slightly rounded base, which tilts the chair in smooth, gentle movements. The saddle seat supports an upright, dynamic posture, which activates and strengthens core muscles in...\nHate wires? So do we. But there they are - hanging all over the place, taunting you. They may even be multiplying. The MojoDesk MAGicSnap Cable Chain is the ammunition you need in the fight against tangled evil. This innovative...\nHate wires? So do we. But there they are - hanging all over the place, taunting you. They may even be multiplying. The MAGicSnap Cable Tray laughs in the face of tangled wires and is one of the several solutions...","domain":"optical_engineering"}
{"url":"http://biomaterials-tissue-engineering.pulsusconference.com/call-for-abstracts/biophotonics","date":"2019-01-22T02:37:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583823140.78/warc/CC-MAIN-20190122013923-20190122035923-00219.warc.gz","language_score":0.9010781645774841,"token_count":142,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__204011855","lang":"en","text":"Biophotonics is the study of optical processes in biological systems, both those that occur naturally and in bioengineered materials. A particularly important aspect of this field is imaging and sensing cells and tissue. This includes injecting fluorescent markers into a biological system to track cell dynamics and drug delivery. Biophotonics covers a wide spectrum of biomedical application from understanding life processes to prevention, early recognition, and therapy of diseases.\n- Track 1-1 Bioluminescence\n- Track 2-2 Clinical and Biomedical Spectroscopy and Imaging\n- Track 3-3 Medical Laser Applications\n- Track 4-4 Bio-Optics: Design and Application\n- Track 5-5 Optical Trapping Applications","domain":"optical_engineering"}
{"url":"http://elliottxqfqf.arwebo.com/2934866/various-types-of-brinell-microscope","date":"2018-10-22T02:34:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514443.85/warc/CC-MAIN-20181022005000-20181022030500-00420.warc.gz","language_score":0.9273053407669067,"token_count":756,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__167109884","lang":"en","text":"Ccd Microscope Camera are mechanical devices used for viewing materials and items so minute in size that they are undetected by the naked eye. The procedure carried out with such an instrument, called Microscopy, utilizes the combined schools of optical science and light reflection, controlled and manipulated through lenses, to study small things at close quarters.\nThe fundamental microscope includes several complex and interrelated parts: a cylinder that supplies a required space of air in between the ocular lens (eye piece) located at the leading and the unbiased lens fixed at the bottom, hovering near to a stage consisting of an optical assembly on a turning arm and a focused hole through which a light shines from a solid U-shaped stand below. Magnifying worths for the ocular range through X5, X10, to X20, while the values for the unbiased lens has a broader period: X5, X10, X20, X40, x100, and x80. These worths provide the observer with a spectrum of possible distance orientations and degrees of sharpness as are required for seeing and analysis.\nSeveral various kinds of microscopes exist, each having particular features:\nOptical Microscope: The very first produced. The optical microscope has a couple of lenses that work to expand and boost images put in between the light source and the lower-most lens.\nSimple Optical Microscope-- utilizes one lens, the convex lens, in the magnifying procedure. This type of microscope was used by Anton Van Leeuwenhoek during the late-sixteen and early-seventeenth centuries, around the time that the microscopic lense was developed.\nCompound Optical Microscope-- has 2 lenses, one for the eyepiece to serve the ocular perspective and among brief focal length for unbiased viewpoint. Multiple lenses work to lessen both spherical and chromatic aberrations so that the view is unobstructed and uncorrupted.\nStereo Microscope: This is also known as the Dissecting Microscope, and more info utilizes 2 different optical shafts (for both eyes) to create a three-dimensional image of the things through two a little different viewpoints. Inverted Microscope: This kind of microscopic lense views objects from an inverted position than that of regular microscopic lens.\nPetrographic Microscope: This type of microscopic lense features a polarizing filter, a rotating phase, and plaster plate. Petrographic Microscopes focus on the research study of inorganic substances whose homes tend to alter through shifting point of view.\nPocket Microscope: This sort of microscopic lense includes a single shaft with an eye piece at one end and an adjustable objective lens at the other. This old-style microscopic lense has a case for easy carry.\nElectron Microscopes: This sort of microscopic lense utilizes electron waves running parallel to a magnetic field supplying higher resolution. Two Electron Microscopes are get more info the Scanning Electron Microscope and the Transmission Electron Microscope.\nScanning Probe Microscope: This sort of microscopic lense steps interaction in between a physical probe and a sample to form a micrograph. Just surface area information can be collected and analyzed from the sample. Types of Scanning Probe Microscopes consist of the Atomic Force Microscope, the Scanning Tunneling Microscope, the Electric Force Microscope, and the Magnetic Force Microscope.\nScience wouldn't be what it is today without the microscope, as this device is the primary instrument by which the world and all of its components get more info are determined and assessed. It is with the microscope that we take a look within ourselves so we can understand and find out who we are and how we work.","domain":"optical_engineering"}
{"url":"https://www.gunsandtech.com/gun-optics/tyan/trijicon-accupower-1-8x28mm-tactical-scope-review/","date":"2019-09-22T21:16:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575674.3/warc/CC-MAIN-20190922201055-20190922223055-00136.warc.gz","language_score":0.8907648324966431,"token_count":1197,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__129487242","lang":"en","text":"I first covered the new Trijicon AccuPower 1-8x28mm in part of my 2017 SHOT Show Optics report. After SHOT 2017, I got a hold of a copy and I have been using it since then. So far I have been impressed by it. I like the bigger 28mm objective size and Trijicon’s segmented-circle first focal-plane reticle with daylight visible illumination. It’s relative short, optically it’s a great performer and it’s has a good price point for a top-tier 1-8x carbine optic.\nI remember not too many years ago, when Leupold released their Mark 8 1.1-8×24 with a price tag of $8000. Although, Leupold did adjusted the price on their updated version recently but it’s still costs $2800-$3000 and up depends on the reticle option. The new Trijicon AccuPower 1-8×28 has a MSRP of $1699 but it’s now available from many place for as low as $1275. So, yes, the new Trijicon AccuPower 1-8x costs half that of the Leupold Mk 8’s price. For the purpose of this review, I will be comparing the Trijicon, made in Japan, to the U.S. made Leupold.\nThe Trijicon AccuPower 1-8×28’s windage and elevation turrets have build-in locking feature. Just pull it up or out to side and that will unlock the turret. The adjustment on my MOA reticle sample is in 1/4 MOA per click and on the MIL reticle model is in 0.1 MIL per click. The illumination control turret features the “off” position between each levels. I personally would just prefer low-profile capped adjustment turrets on a tactical scope.\nAt 1x the Trijicon offers a wider FOV than the Leupold Mk 8 by over 17 feet at 100 yards. According to Trijicon’s spec sheet, the AccuPower is a true 1x at the low magnification. Whereas, the Leupold Mk 8 is 1.1x. To be honest, I can’t tell the difference between the two. True 1x on a magnified scope is always subjective to one’s vision.\nAt the medium 4x magnification. Trijicon offers both red and green color illumination version of the scope. I found the green color illumination on the previous Trijicon AccuPower model is not bright enough for under a sunny day with a desert background. On my newer red color illumination AccuPower model, that’s not a problem with level 9 and above on the illumination setting. The green color illumination does have one advantage over the red color – green it is better for those with any degree of colorblindness, which affects a small but noticeable percentage of the male population.\nAt the max magnification of 8x the Leupold Mk 8 has a slight bigger FOV of 14.7 ft @100 yds vs the Trijicon’s 13.1 ft @ 100 yds. Probably due to its larger 28mm objective size, the Trijicon is brighter and has a much more comfortable eyebox than the Leupold Mk 8 at the top magnification levels. The Trijcon also has a constant eye-relief, while the Leupold Mk 8 has almost half inch of eye-relief change through out the zoom ranges.\nThe one aspect that I don’t like about the Trijicon segmented-circle reticle is its thick 4-MOA center crosshair. The MIL version’s center crosshair is slightly smaller at 1-MIL (equals to 3.4377 MOA). That compares to the 1/2 MOA center-dot found in most of the Leupold Mk 8 reticle options.\nI initially mounted the Trijicon 1-8x28mm scope on a set of new Warne MSR 34mm QD rings on my testing WPA T91 piston upper. While I really like Warne rings, the configuration doesn’t offers enough front offset for the Trijicon 1-8×28 on a short AR-15 style flat-top receiver. I eventually replaced that with a Geissele Super Precision Mount. The standard M4 version of the Geissele mount is a perfect fit for the Trijicon 1-8×28.\nSize wise, the Trijicon AccuPower 1-8×28 is almost an inch shorter than the Leupold Mk 8. Both are in the 34mm tube size, the Trijicon weights 1.8 ounces more and the Leupold Mk 8 has 150 MOA of turret adjustments compare to the 100 MOA of the Trijicon’s. The Leupold Mk 8 is probably a better precision scope due to its reticle choices and bigger adjustment range. The Trijicon is a better carbine optic with its shorter length, more useable daylight visible illumination, and a faster reticle for close-up. Price wise, the Trijicon AccuPower 1-8×28 is a better deal at half the cost.\nTrijicon AccuPower 1-8x28mm Specification:\n|FOV:||109.2-13.1 ft @100yds|\n|Eye relief:||4 inch|\n|Turret Adjustment:||1/4 MOA|\n|Adjustment range:||100 MOA|\n|Battery life:||31 hours at Max|\n|Street price:||under $1300|","domain":"optical_engineering"}
{"url":"https://wayswire.com/best-night-vision-apps/","date":"2021-07-29T06:39:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153816.3/warc/CC-MAIN-20210729043158-20210729073158-00627.warc.gz","language_score":0.900924026966095,"token_count":1846,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__85158036","lang":"en","text":"Nowadays, several various “spyware” programs can be found on the internet. They say that they are transforming smartphones into qualified tracking instruments.\nParticularly popular programs are with which the camera can see in the dark. All these systems in general, though, are merely an emulation of actual computers. But, what can we do? Don’t you want a good camera to buy? Else, were you in a dark area and seeing nothing?\nMost of the applications realize what the Night Vision Camera is for. If you don’t ask, we’ll advise you about using the phone at night. Such devices let you record footage on your mobile at night, simple images quickly.\nYou talk of darkness, just load some camera program on your smartphone at night and start taking your mobile selfie, photos, and videos. There are many Night Vision Apps for Android and iOS users open. Most of these apps are obsolete or not assisted by most computers.\nTop 9 Free Night Vision Apps For Android And iOS (2021)\nSo keep these in mind, we have filtered these apps and mentioned the Best 11 common free night vision apps for android and iOS.\n1. Ferret Night Vision Camera\nThe camera program Ferret Night Vision functions as a night vision tool. With that, in the darkroom or at night, you can see different objects or individuals.\nThere are different algorithms in the program to detect artifacts in dark places. It clarifies the image, too. So what you haven’t seen before, you can see instantly. Additional filters are also used in this software.\nThe picture is analyzed and its quality improved. So under certain circumstances in the position where you are, you can get a clear picture. You can also take a photo right in the form.\nThe main screen shows a special button. Often the dark shades of our eyes are black. That’s why in a dark room you can hardly see anything. This application’s camera, therefore, shines through dark areas, particularly gray ones.\n2. Night Vision Camera Simulator\nNight Vision Camera (Photo & Video) Simulator is an application for making images in the absolute dark. Both features can then be used directly after the software has been enabled.\nA green picture from the camera fills the whole main screen. The shooting is like a night-watching tool. This is quite fascinating. The trick to shooting at night. Night Vision (Photo & Video) Image emulator maximizes initial lens photosensitivity. Green is a light filter that’s special.\nYou can also adjust the selection here by choosing any of the pictures presented. Finished pictures can be displayed either on or on the web gallery. Set pictures can be stored in it or in the smartphone folder. Even if the device is closed, the program always shoots images. The GUI of the software is very easy and enjoyable.\n3. Night Vision Camera\nNight vision camera is another popular night vision apps for android and iOS users. Night Vision Camera app for low-light or night-time photography. You can film photos or take pictures at night.\nYour phone will become a true camera for your mobile device. Cameras for night viewing allow you to surf in a dark environment. Nevertheless, it is not always feasible and cheap to buy a special device.\nBecause modern smartphones have ample sensors, this problem can be solved. This program is necessary to launch. In a dark room or at night, you get a nearly specialized tool for firing. A professional camera can not be removed completely. But you will have a variety of new apps in this direction.\n4. Night Camera Low light Photos\nThe Night Camera: Software for night-light images helps to take pictures in low light and in their complete absence. You don’t have to buy expensive special equipment when you have to fire in the night.\nThe Night Camera: Low-light photography software can make a real secret agent tool for your camera.\n5. Thermal Night Vision Colour Filter Effect Camera\nIt’s a virtually competent system for night vision. With it, various artifacts or individuals in the dark can be seen. With the use of a special method, it imitates a true camera with night vision. In the program, you can also take a picture directly. You will zoom in and out with the program video. Further, irrespective of room illumination, you will get a fairly clear picture.\nThe technology improves the clarity of the image utilizing special filters. The Thermal Night Vision Colour Impact Camera is converted from this feature into a night view camera. In any context, all points in the picture are evident. On your phone’s monitor, you can see all the information. The pictures look like they have been shot on a real camera of the night.\nThis program will also be useful for people who like to search for things at night. Only turn the camera on and explore the area in this program. You can use the flash when taking a frame. The light intensity and the quality of the image can be changed. The opportunity to use the opposite effect during the day is an uncommon aspect of this program.\n6. Thermal Night Vision Camera Effect Stimulated\nTo identify things in the darkness, use the features of the Simulated program for thermal night vision. And even under the toughest conditions, you can easily take pictures and videos. The app uses the mobile device’s front and back cameras. Therefore, the features of a standard camera are greatly expanded.\nA thermal imager also has a useful function in the Thermal Night Vision camera impact simulated test. It allows you to get a clearer picture using all features of the frame. The light and colour of images can be changed separately. The fascinating x-ray vision feature can also be used.\n7. Night Vision Cam\nYou may make images in the night or without illumination using the Night Vision Cam program. Such images will have the appearance of a\nprofessional photo shooting on a monitor with a focus on the moon.\nSet the brightness and intensity of light for lighting. For example. Many other fascinating apps do occur. Finished pictures can be stored in the mobile device folder.\nEven with the screen closed, the Night Vision Cam software will proceed. It can also find the account through geolocation. So you can glance not only at stuff but can figure out where you are once you are in the dark area.\n8. Night Mode Camera\nNight mode camera is another night vision camera apps for android users. A helpful help will be the Night Mode Camera (Photo & Video) program. For those who often take time off at night, it will be useful. In fact, you will improve the quality of the produced photographs with this software. The combined algorithm and unique filters make it happen.\nWhen you suddenly find yourself in a dark room, you can also use this method. On your mobile, just toggle on the device. You’ll see all that’s around you and the right way can be found. A huge camera night vision feature is included in the Night View Camera (photo & video) system.\nSo it looks like a professional device. It will improve shooting efficiency wherever you are. A simple collection of effects in the program were designed to help you manage the night. The parameters given can also pick or generate your own results.\n9. Night Vision Simulator\nNight Vision Simulator is one of the best night camera and night vision apps for iOS users. A competent night view camera may be substituted by Night Vision’s device. It features the best algorithms to identify a photo in even the darkest places.\nOn the front and back cameras of the unit, the emulator Night Vision captures photos and videos. The app uses the helpful focus feature when making a frame. It helps to focus the camera on a certain subject.\nIllumes is the best night vision apps for Android users to take high-quality images and videos in the night. You can also use it to render drawings of your friends, relatives, and others as selfie apps with more cartoon features.\nThere are four different ways to imagine and images in the night, such as gray, red, black, moist, and normal. You can use this device to take photos and videos on your mobile without using a flashlight.\n11. Night Eyes Light\nNight Eyes Lite is one of the best apps for ios users to watch and watch night. It’s a brilliant app that helps you to get the best image quality in real-time without using torches. Using this method you can use both front and back to boost the image quality.\nIn addition to this, it has the strongest purple, red, gray, b / w, sepia, and other colors. With 1-10x optical live zoom, you can take images in both landscape and portrait modes.\nThe best night vision apps for Android and iOS have been discussed in detail. Don’t miss all Android and iOS apps from Night Vision, and then select the app that meets your needs.","domain":"optical_engineering"}
{"url":"https://cgsb.abudhabi.nyu.edu/core-technology-platforms/light-microscopy/","date":"2020-07-11T16:20:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655934052.75/warc/CC-MAIN-20200711161442-20200711191442-00282.warc.gz","language_score":0.8578516244888306,"token_count":290,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__95328188","lang":"en","text":"The Light Microscopy CTP is equipped with state-of-the-art instruments for imaging biological samples using a range of methods, including phase contrast, differential interference contrast (DIC), and fluorescence. It hosts standard bright field microscopes as well as fully automated laser scanning microscopes (upright and inverted) that enable multicolor imaging of surfaces and 3D volumes with diffraction-limited resolution. The facility provides access to both confocal and multi-photon microscopes for live imaging and imaging of deep tissues.\nCurrent applications at NYUAD range from neuronal development studies to analysis of photo-induced chemical reactions in crystalline matter and include characterization of cell-penetrating peptides as drug delivery vectors as well as oncogene regulation/activation studies.\n- Leica DMI3000 Fluorescence Inverted Microscope\n- Leica DMI6000 DIC/Fluorescence Inverted Microscope\n- Leica SP8 Confocal Upright Microscope with White Light Laser\n- Olympus FV1000 Confocal/2-Photon Inverted Microscope\n- Olympus FV1000 Confocal/2-Photon Upright Microscope\n- Nikon LV100 DIC/Fluorescence Metallurgical Microscope\n- Nikon LV100 Motorized Metallurgical Microscope\n- Nikon SMZ18 Stereomicroscope\nResearchers and Staff:\nMehar Sultana: Microscopy Core Manager","domain":"optical_engineering"}
{"url":"https://suztain.com/en/products/mightylite-floodlight-16w-sort-lille-effektiv-led-projektor","date":"2023-10-03T21:01:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511220.71/warc/CC-MAIN-20231003192425-20231003222425-00385.warc.gz","language_score":0.8939582109451294,"token_count":250,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__102411075","lang":"en","text":"In stock & ready for shipping (1-3 business days)\nVi always ship using sustainable packaging\nMightylite LED Floodlights is a very innovative series of small projectors for lighting in corridors, basements and courtyards ect. The light corresponds to the light from a 75W bulb\nMightylite manufactures LED light sources with a super good price-quality ratio.\nMightylite LED spotlights are a very innovative serie of so-called floodlights for lighting, where you need to secure light around your property, workplace or other places where you need outdoor lighting.\nMightylite is dust and waterproof for IP65 and produced in impact resistant plastic.\nMightylite LED Floodlights are high performance and well thought out in the design and use of technology. They have a built-in relay and self-adjusting fuse.\nmust be connected to 230 volts\n1200 lumens (= 75W bulb)\nWith PIR sensor\nRa value> 80\nPower Factor> 0.9\n50,000 hours for L70\nClear screen for optimal light output\nH110 x B160 x D125mm","domain":"optical_engineering"}
{"url":"http://erla8625uchblog.alltdesign.com/2-aspects-you-do-not-know-in-respect-to-lasik-eye-medical-procedure-8104742","date":"2018-12-19T10:43:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376831933.96/warc/CC-MAIN-20181219090209-20181219112209-00624.warc.gz","language_score":0.956351101398468,"token_count":892,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__188854471","lang":"en","text":"2 Aspects You Do Not Know In Respect To LASIK Eye Medical ProcedureThe eye can be examined with relative ease regarding both its function and its structure. A practical assessment includes the ability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be evaluated in several methods. The client might be asked to recognize illuminated letter or objects of differing sizes on exactly what is known as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in numerous methods. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, particularly in glaucoma, the stress in the eyeball is increased noticeably.\nIt ought to be well kept in mind that a patient with an eye problem may have other issues. Frequently other physical conditions are main and affect the eye as a consequence. The appearance of the eye can inform the client and the physician to troubles in some disturbances of other parts of the body even before other signs provide themselves.\nSubsequently, one's dependence on sight is highlighted when one deals with a possible or short-lived permanent loss of this crucial sense. For this reason, when corrective steps are looked for, particular forms of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to encourage decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgical treatment is another kind of vision here correction. The only difference is that with this type of surgery, one's vision is fixed completely.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to understand. Probably, the main reason that this type of eye surgical treatment has actually ended up being well accepted is due to the fact that many of its cases had actually achieved success.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgical treatment includes the this website operation of the retina, which is among the most sensitive portions of the eye, a lot of people say that the operation can be very dangerous.\nTo puts it simply, a simple error might practically trigger an individual's life time loss of sight. For this reason, it is crucial to think about many elements before choosing whether LASIK eye surgery is the best restorative measure one needs to go through.\n2. It is not a best procedure\nLASIK eye surgical treatment might remedy your vision but it does not necessarily indicate that it can give you a perfect vision. Even if analytical reports show that 70% of the patients may have 20/20 vision, this does not always imply they have perfect vision too.\nOffered all these things, it can be deduced click this link that, in spite of the appeal of the operation, LASIK may not constantly be the perfect eye surgical treatment the method most individuals see it\nAlternatively, the examination of the structural part of the eye might be made in a number of methods. It needs to be well remembered that a patient with an eye issue may have other problems. Frequently other physical conditions are main and affect the eye as a effect. The look of the eye can inform the client and the doctor to troubles in some disturbances of other parts of the body even before other symptoms present themselves.\nLike its tangible counterpart, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://heatoncreative.com/equipment","date":"2019-05-20T17:32:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256082.54/warc/CC-MAIN-20190520162024-20190520184024-00112.warc.gz","language_score":0.8979811072349548,"token_count":309,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__2461231","lang":"en","text":"The D4s is a professional 16.2-million-pixel DSLR with an extremely high specification. Shooting at 11 frames per second, it is the perfect companion to my sports work.\nA high-end super telephoto lens with a versatile zoom range and a wide constant aperture of f/2.8, designed with sports in mind.\nSuperb image quality, high ISO performance, fast autofocus, and rich features means even today this camera is relevant in the world of photography.\nThe Tamron SP 70-200mm F/2.8 Di VC USD is a fast telephoto zoom lens that features optical image stabilization and an ultrasonic-type autofocus motor.\nAn old but absolute tank of a camera! Amazing colour saturation which even to this date is hard to beat. One of the highest rated DSLR's ever produced.\nOffering natural image rendering and exceptional sharpness. Ideal for close-up photography with an auto extension ring\nA versatile zoom lens for everyday shooting, this lens covers a useful wide-angle to portrait-length range of focal lengths to suit photography in a variety of environments.\nAn amazing tool which enables us to shoot smooth and steady video from the ground.\nMade for long distance work, the impressive f/4.5 aperture ensures quality in lower light situations without compromise. It is the perfect distance lens.\nCopyright © 2019 heaton creative photography - All Rights Reserved. All imagery on this website is and remains the property of Heaton Creative Photography.","domain":"optical_engineering"}
{"url":"http://s2013.siggraph.org/attendees/emerging-technologies/events/near-eye-light-field-displays","date":"2020-10-26T19:39:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107891624.95/warc/CC-MAIN-20201026175019-20201026205019-00020.warc.gz","language_score":0.8648186922073364,"token_count":178,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__125689434","lang":"en","text":"This light-field-based approach to near-eye display allows for dramatically thinner and lighter head-mounted displays capable of depicting accurate accommodation, convergence, and binocular-disparity depth cues. The near-eye light-field displays depict sharp images from out-of-focus display elements by synthesizing light fields that correspond to virtual scenes located within the viewer's natural accommodation range. While sharing similarities with existing integral imaging displays and microlens-based light-field cameras, the displays optimize performance in the context of near-eye viewing. Near-eye light-field displays support continuous accommodation of the eye throughout a finite depth of field; as a result, binocular configurations provide a means to address the accommodation-convergence conflict that occurs with existing stereoscopic displays. This demonstration features a binocular prototype and a GPU-accelerated stereoscopic light field renderer.","domain":"optical_engineering"}
{"url":"http://felixwang.net/wordpress/2018/01/22/cascade-shadow-maps/","date":"2020-07-05T16:43:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655887377.70/warc/CC-MAIN-20200705152852-20200705182852-00023.warc.gz","language_score":0.8765601515769958,"token_count":1303,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__3966428","lang":"en","text":"Shadow map is now widely used in realtime shadow rendering. The basic concept of shadow map is very intuitive. We treat the light as a camera. Watch from the light and all the invisible areas are shadows.\nWith this basic concept, shadow rendering always involves two passes. In the first pass, we align the camera with the light, and then render the whole scene with depth information. This is the shadow map. During lighting, we convert the pixel position to the light(shadow camera) space, then we compare the depth value the with corresponding pixel in the shadow map we rendered before. If the current pixel is further from the light, then it’s in the shadow. Otherwise it’s lit. Easy to understand and easy to implement.\nDirectional light’s shadow\nWhen we build the shadow camera, we need different parameters for different types of lights. Directional light like the sunlight is considered infinite far from us. So it’s treated as a light that emits parallel light rays. So the shadow camera for directional lights is an orthogonal camera. It only has a size that can encapsulate the lights range or view camera frustum if the light is considered infinite.\nPunctual light’s shadow\nThe most commonly used punctual light model is spot light and point light. A spot light is a cone shape light. It has an angel parameter to describe how wide it the light shape. So a square ratio perspective camera is used to render spot light shadow map. The FOV of the camera is corresponding to the angel of the light.\nBut a point light is a sphere shape. It’s impossible to represent a sphere with a single camera. So the most commonly used way is represent the sphere as a cube map and use six 90 degree camera to render each face of the cube map. Then during rendering, we decide which face is current pixel in, compare the depth and decide the attenuation.\nCascade shadow map\nWhen we use a perspective camera, the pixel density of a unit world space area is not identical. Because of perspective projection, near fields of camera produce more pixels. If we use one shadow map for the whole camera frustum, it will result in either oversampling at near areas or undersampling at further areas. And because camera has a frustum shape, a lot of areas in the square shaped shadow map will be wasted.\nSo we split the camera frustum into several parts from near to far. Then, we use bounding volume for each part of them to render shadow map instead of using a bounding volume for the whole camera. With this approach, we have a tighter bound volume and more appropriate sampling rate for each part.\nHow should we split the frustum? The Parallel-Split Shadow Maps on Programmable GPUs shows us that we can lerp uniform splitting and exponential splitting based on how our camera is positioned. For example, a top-down camera can use uniform splitting, and a look-at-horizon camera which can see super far should use split more close to the exponential distribution.\nCascade shadow map is not perfect. It still has several problems:\n- Though fewer areas are wasted comparing to a single shadow map, there are some repeated draws in the overlapping area between neighbor cascades;\n- Cascade size varies a lot, especially when using exponential splitting. With the same shadow map size, there may be obvious shadow quality switch at the edge between cascades.\nThe first issue is unavoidable because we need to confirm that the shadow camera covers the cascade frustum completely to avoid unshadowed seam between cascades.\nFor the second problem, the common way is to do a blend at the edge of two cascades. It solves the edge problem with a cost of evaluating shadow twice at the blending area. This is a quality-performance trade off.\nStable cascade shadow map\nAnother problem with directional lights’ shadows is that the shadow camera always moves with our camera. And for performance reasons, under most circumstances, our shadow map is under sampled. When we rotate our camera around, light space AABB box size that corresponds to the ortho camera size changes in world space. With the shadow map size remains the same, the shadow map sampling density changes. On the other hand, when we translate the camera, a world space point’s rasterization state changes discretely in shadow map space. So when we move continuously in world space, the shadow appears to be flickering or shimmering.\nFor the first problem, we change the size of the ortho shadow camera from a light space AABB box to a bounding sphere. When using a sphere, the shadow camera size remains constantly when we rotating our camera like the image below.\nFor the second problem, we along the camera range in pixel size level with the actual shadow map. After we calculate new shadow camera position and size after the main camera moves, we re-adjust the camera position and size according to the shadow map pixel size and resolution. This will make the camera move by the integer times of pixel size and ensure that the same point in world space always refers to the same depth value in shadow map.\nBy comparing shading pixel light depth and the corresponding shadow map depth, we can know that if the current pixel is in shadow. This is the basic concept of the shadow map. With one sample in shadow map for each pixel, the shadow value is either 0 or 1. This will result in a very sharp shadow. Especially when the shadow map is under-sampled, the shadow will not only sharp but also aliased. So soft shadow is needed.\nThe most traditional shadow map is Percentage Closer Filtering (PCF). The basic idea of PCF is like all the blur methods. We sample the shadow around the light space position, and do the convolution of all the shadow results with a kernel. This will results in a blurry shadow attenuation at the edge of the shadow area. The larger the kernel, the softer the show.\nAnother real-world shadow feature is that the further the shadow caster to the shadow receiver, the softer the shadow. So here comes the PCSS which use a kernel size according to the shadow distance between caster and receiver. The further the distance, the larger the kernel size. This is pretty expensive, but the result is very pleasing.","domain":"optical_engineering"}
{"url":"https://www.allaboardexclusive.com.au/uhlenbrock-29012-2-led-festoons-warm-white.html","date":"2023-11-30T01:34:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.15/warc/CC-MAIN-20231130000127-20231130030127-00685.warc.gz","language_score":0.874237060546875,"token_count":287,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__214302449","lang":"en","text":"2 LED festoons warm white UHLENBROCK - 29012\nReplacement for all 23 mm festoon bulbs with 12-19 V, such as those used in Roco, Lima and Ade cars\nPerfect illumination from just 6V\nFor digital, direct current and alternating current\nThe festoon lamps used in many cars are no longer available. Our new LED festoons are suitable as a replacement with significantly better properties.\nThrough the use of LEDs and electronic control, LED festoons reach their full brightness from just 6 V. Gone are the days when the lights on the cars only glowed when driving slowly in direct or alternating current mode and resembled floodlights when driving quickly. With the LED festoons, an almost constant brightness is achieved.\nThe current consumption is only 15 mA in contrast to around 40 mA of the original festoons.\nThe LED festoons are available in pure white for the cars in which the original fluorescent lamps are installed and in warm white for the cars in which the original incandescent lamps are used.\nItem No. 29011 2 LED festoons pure white\nItem No. 29012 2 LED festoons warm white\nItem No. 29013 10 LED festoons pure white\nItem No. 29014 10 LED festoons warm white\nDirect current symbol Alternating current symbol Motorola format icon DCC format icon\nto download the manual\nHelp for the product","domain":"optical_engineering"}
{"url":"http://sensing.konicaminolta.asia/technologies/luminance-color-meters/","date":"2018-04-26T15:10:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125948285.62/warc/CC-MAIN-20180426144615-20180426164615-00483.warc.gz","language_score":0.9100006818771362,"token_count":153,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__219635356","lang":"en","text":"Luminance Color Meters\nAlso known as Chroma Meters, luminance and color meters measure photometric brightness as well as give color information.\nThe CS-150 (successor to the CS-100A) is a highly accurate tristimulus colorimeter equipped with newly designed sensors with spectral responses that more closely match the CIE 1931 color-matching functions representing the sensitivity of the human eye to provide measurement results … Continue reading\nThe CS-160 is lightweight, compact and battery powered luminance and tristimulus colorimeter for the measurement of a wide range of luminance conditions and non-contact measurement of color. The CS-160 luminance and color meter allows luminance and chromaticity to be measured … Continue reading","domain":"optical_engineering"}
{"url":"https://diacom-global-trade.com/en/products/view/81","date":"2020-08-09T06:05:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738425.43/warc/CC-MAIN-20200809043422-20200809073422-00156.warc.gz","language_score":0.9567969441413879,"token_count":109,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__61653839","lang":"en","text":"The tube is made of special glass and filled with a special gas to produce light radiation in the Near Infrared range. The tube is intended for installation or replacement of similar tubes in Diacom-Plazmotronic devices. When replacing, care must be taken not to damage the tube and not to cause cuts or wounds. The tube is installed in the device in the off state, in order to avoid accidental electric shock. This process is recommended to be performed by a trained professional who has the skills to handle devices with AC power supply.","domain":"optical_engineering"}
{"url":"https://www.danbit.dk/en/accessories-and-tools/9466-fiberstikrenser-accessories-and-tools.html","date":"2020-01-28T16:26:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251779833.86/warc/CC-MAIN-20200128153713-20200128183713-00284.warc.gz","language_score":0.804071843624115,"token_count":342,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__242053341","lang":"en","text":"Fiber plug fiber cleaner\nFiber Connector Cleaner\nFiber plug cleaner for SC plug / adapter\nCleans the SC adapter and fiber plug for dust and dirt before use by pressing a piece of cleansing dust wire onto the fiber guide.\nContains up to 800 cleans.\nDust Cap / Adapter fiber connector; removable when cleaning adapters.\nRetractable patch connector with narrow passage\n4 other products in the same category:\nPortable fusion splicer - fiber splinter - Fiber cutter, single fiber for quality control. Fully automatic operation\nMobile / portable fiber splicer with fiber cutter\nFor single fiber diameter of 80 - 150 μm\n9 sec. splitting time and 30 sec. heating time\nFull automatic operation and display\nAutomatic quality control\n5.1 \"TFT color monitor\n1 x VGA\n1 x USB update software update\nA battery charge clear about 150 splits\n2.9 kg incl. Battery\nOperating temperature -0 to 40 °\nDC12.6V / 5.0A supply\nDimensions: 169 x 152 x 155 mm (L x W x H)\nCable tests for fiber cables with LC connectors. Tests fiber cables for breakage and review. Lights up where it is broken\nFiber cable terminals for LC / MU plugs.\nThis type of fiber has a tip diameter of 1.25 mm\nThe tip of the test fitting for fiber cables with a tip diameter of 1.25mm\nTransmits visible light through the fiber\nThe cable will light up where there is a break or crack.\nFor a healthy cable, the light is seen at the opposite end of the fiber cable.","domain":"optical_engineering"}
{"url":"http://www.mobilestec.com/types-lens-hoods/","date":"2022-05-29T09:04:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663048462.97/warc/CC-MAIN-20220529072915-20220529102915-00384.warc.gz","language_score":0.9216243028640747,"token_count":806,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__196061008","lang":"en","text":"An assortment of types are accessible, yet the general capacity is the same for each. The most widely recognized kind of lens hood, it is frequently utilized with standard and zooming lenses. Utilized for the most part with wide-point lenses, the exceptional petal shape keeps it from barging in the photo and cutting off piece of the picture.\nIn photography, a lens hood or lens shade is a gadget utilized toward the front of a lens to obstruct the Sun or other light source(s) to counteract glare and lens flare.Lens hoods may likewise be utilized to shield the lens from scratches and the components without putting on a lens cover.\nThe geometry of a lens hood is subject to three things: the central length of the lens, the measure of the front lens component and the measurements of the picture sensor or film in the camera.\nTypes of lens hood\nThe state of a lens hood can fluctuate from a plain barrel shaped or funnel shaped segment (much like a light shade) to a more mind boggling shape, now and then called a petal, tulip, or bloom hood. These more perplexing shapes consider the last picture’s shape and angle ratio.This permits the lens hood to square stray light with the more extended bits of the lens hood, while permitting all the more light into the sides of the picture through the shorter segments of the hood, consequently decreasing the measure of mechanical vignetting (decrease of light around the periphery) in the last picture.\nThe geometry of a lens hood is reliant on three things:\n- central length of the lens,\n- size of the front lens component,\n- measurements of the picture sensor or film in the camera.\nPreferably, lens hoods should increment long, and accordingly in proficiency, as the central length of the lens increments and the point of view decreases. Lens hoods are more noticeable in long center lenses since they have a littler survey point than that of wide-edge lenses. For wide point lenses, the length of the hood (far from the finish of the lens) can’t be as long as those for zooming lenses, as a more drawn out hood would enter the more extensive field of perspective of the lens.\nMost extreme opening likewise influences the state of a lens hood. As the opening gets bigger the measure of light and importantly the measure of the casing the sensor “sees” increments. This can be seen when looking at two lens hoods of the same central length however with varying openings – analyze the lens hood of a fax f/4 lens with that of a similar lens yet with a most extreme gap of f/2.8.\nEffectively made rectangular or square lens hoods are by and large more productive than round and hollow or conelike ones on the grounds that those shapes intently take after the state of the photo. In any case, rectangular or square lens hoods ought not be utilized with zoom lenses whose front components pivot as the central length is changed, as the hood will turn too, blocking parts of the edge of view. The same likewise applies to petal lens hoods. For these types of lenses, just tube shaped or cone shaped lens hoods will work successfully.\nWhat Does a Lens Hood Do?\n1. Lens Hoods Block Unwanted Light\n2. Lens Hoods Protect Your Lens From Accidental Damage\nInstructions to Use a Lens Hood\nLens hoods append specifically to the front of your lens and work best on typical, fax, and zoom lenses.\nBe that as it may, I would not prescribe utilizing a lens hood with a wide edge lens. In the event that you do put a lens hood on a wide point lens, you risk the lens hood really showing up in your picture, making an overwhelming (and strong dark!) vignette. This isn’t something most picture takers need in their picture.","domain":"optical_engineering"}
{"url":"https://abc7ny.com/snapchat-introduces-spectacles-3-video-recording-sunglasses-3d-effects-enhance-snaps/5465653/","date":"2024-03-04T02:21:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476409.38/warc/CC-MAIN-20240304002142-20240304032142-00298.warc.gz","language_score":0.9312434196472168,"token_count":178,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__123993709","lang":"en","text":"Snapchat introduces Spectacle 3, the latest version of its video-recording sunglasses now with 3D effects.\nSpectacles 3 are built with a lightweight steel frame and circular lenses that come in carbon or mineral for a price tag of $380.\nTwo HD cameras are placed on either side of the frame to capture depth and dimension the way the human eye does, according to a release by the Snap Inc.\nWith just one swipe, the glasses provide new lighting, landscapes and other effects to enhance each Snap.\nSpectacles 3 will ship this fall and are available to pre-order now at Spectacles.com\nThree years ago, Snapchat sold its first pair of spectacles for $130 in pop-up vending machines called Snapbots. People waited hours in line to get them but the hype didn't last. Snap reportedly lost $40 million in unsold inventory.","domain":"optical_engineering"}
{"url":"http://messiahmbhi802.blog2learn.com/5233717/eye-surgical-treatment","date":"2018-05-21T10:53:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864063.9/warc/CC-MAIN-20180521102758-20180521122758-00361.warc.gz","language_score":0.9565626978874207,"token_count":1330,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__219596254","lang":"en","text":"Eye Surgical procedure has become a mainstream approach of vision adjustment, and also this post will certainly discuss the advantages as well as negative aspects of 3 different methods being offered to the medical consumer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and also is an eye surgical system which permanently deals with vision by getting rid of a slim layer of the cornea. This treatment functions best on people with moderate to high levels of nearsightedness (nearsightedness), reduced to moderate levels of hyperopia (farsightedness) and also astigmatism related to nearsightedness, and that have thick corneas. It is the most widely known surgical vision correction approach.\nIndividuals with typical eye sight see objects plainly due to the fact that images are brought right into an appropriate focal point by the cornea as well as lens of the eye. Preferably, the cornea's curvature is equally matched to its length in a normal eye. Individuals with astigmatism, myopia or hyperopia have actually irregularly shaped corneas, so the things seen are not concentrated appropriately. LASIK adjustments corneal form by precise elimination of corneal cells, as well as by doing so corrects the eyes' focusing power.\nThere are, nonetheless, threats to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this takes place, it is typically due to the fact that the client had a pre-existing problem which ought to have averted the surgical treatment in the first place, such as pregnancy, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. People with big students are additionally inadequate prospects for LASIK. Dry eye syndrome will certainly be intensified by this procedure.\nA few individuals complain that they permanently see \"ghost\" pictures, have actually obscured vision, diminished contrast and also poor evening vision. When LASIK wased initially introduced, 5% of individuals had post-operative issues; however, refinements in the treatment have actually triggered this price to go down to much less compared to 1% if LASIK is executed by experienced professionals as well as patients are appropriately screened prior to surgical procedure. If problems do take place, they could frequently be resoved by a retreatment.\nFDA has actually authorized LASIK laser eye surgery because 1998. While there are a great deal of pleased people, there are nonetheless no long-term researches regarding its results. Recognize the limitations and the threats of LASIK eye surgery before you sigh up for the treatment.\nThough much less well known, these little implants could boost vision in clients with mild to moderate nearsightedness without the danger of permanent eye damages intrinsic in the tissue removal method of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to presume a flatter form. Though a little less specific than LASIK, they are removeable and also exchangeable, so if the client has an unanticipated over- or under-correction, the implant could be eliminated and one more of a various size inserted to get the desired adjustment. The implants lie at the edge of the cornea, so the central visual location is completely intact and intact, as well as the strength of the cornea is undiminished, making it a far better option for pilots and also those who take part in contact sports where eye injury is an opportunity.\nIntacs are unsuitable for extreme nearsightedness and more than minor astigmatism (1.00 diopters), as the cornea can only be stretched until now. If the Intacs are eliminated, vision returns to its preoperative degree. Besides vision adjustment, Intacs are likewise used to deal with keratoconus.\nIntacs are FDA approved as well as Ten Years researches have disclosed no major troubles with Intacs and also few client problems; however, because the procedure takes more training than LASIK, there are fewer eye surgical treatment centers using it. Nonetheless, the Intacs internet site offers a list of practitioners in each state, also a couple of in Canada, Europe and Mexico.\nSince many people do not want to take the chance of LASIK as well as Intacs could not aid those with severe vision problems, intraocular lens implants (IOL) are a brand-new choice authorized by the FDA in 2004 to fix modest to severe nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the sort of lens implant used to bring back vision adhering to cataract eye surgical procedure.\nThe read here brand-new IOL, called the Artisan, is planned for only patients who have 2.5 diopters or less of astigmatism.\nThe synthetic lens does not change the natural lens, but is placed in front of it. The main issue found with the dental implant was the steady loss of endothelial cells in the corneas of patients that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are necessary in maintaining the cornea clear. A three-year study revealed a constant stable loss image source of endothelial cells of 1.8 percent a year. At this moment, no one could anticipate whether this loss will certainly proceed at the exact same rate forever, or even its impact on corneal function.\nTo minimize long-lasting impacts of the gadget on the corneal endothelium, the FDA is requiring that the new lenses be classified to define that they need to only be implanted in clients whose corneal endothelial cells are thick sufficient to hold up against small cell loss.\nMuch more significant issues were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up study of its dental implant people to much better examine the post-surgical occurrence of cataract advancement, retinal detachment as well as other sensory diseases.\nThe Artisan lens is intended to be a permanent implant.Though it can be eliminated surgically, vision may not always return to just what it was before getting the lens. Due to the fact that it does not influence astigmatism, people with this issue may still need glasses.","domain":"optical_engineering"}
{"url":"http://www.narit.or.th/en/index.php/news/577-narit-visits-xinglong-observatory","date":"2017-04-26T17:41:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121528.59/warc/CC-MAIN-20170423031201-00391-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9281434416770935,"token_count":479,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__135470159","lang":"en","text":"- Last Updated on Thursday, 23 March 2017 15:56\nMarch 9, 2017\nXinglong Observatory, Xinglong County, Hebei Province, PRC.\nProf. Boonrucksar Soonthornthum, NARIT Executive Director led NARIT team to visit Xinglong Observatory as part of their visit to the National Astronomical Observatories of China (NAOC). Prof. Xiaojun Jiang, Director of Xinglong Observatory displayed his enthusiasm in showing NARIT its infrastructures and facilities NAOC has to offer on site.\nXinglong Observatory is one of the primary observatories administered by NAOC. As the largest observatory in the continent of Asia, it contains nine telescopes whose effective apertures are larger than 50 cm. The largest of them all is the 2.16-m telescope which is the first 2-metre class astronomical telescope designed and built by astronomers and engineers in China. Its main instruments include a high resolution fibre-fed spectrograph, the Beijing Faint Object Spectroscopy and Camera (BFOSC) and the OMR Cassegrain focus Spectrograph.\nXinglong Observatory also houses the Large Sky Area Multi-Object Fibre Spectroscopic Telescope or LAMOST. It is a special active reflecting Schmidt telescope which adopts an innovative active optics technique that changes the mirror surface continuously to achieve a series of different reflecting Schmidt systems at different times. It breaks through the bottleneck that has hampered large-scale spectroscopic survey observations in the past by combining a large aperture (a clear aperture up to 4.9 metres in diameter) with a wide field of view (5 degrees). LAMOST possesses 16 spectrographs with 32 CCD cameras, making it the telescope with the highest spectral acquisition rate in the world.\nThe NARIT Executive Director also displayed an interest in joint research work with Xinglong Observatory and LAMOST project as the facilities are prime for Thai researchers in the long run. A talk for promoting Thai students to participate in Universities of Chinese Academy of Sciences or UCAS was also mentioned as, currently, the number of Thai students under UCAS in astronomy is still relatively small compared to other disciplines.\nStay tuned for more news on the expedition of NARIT to NAOC from March 8-12, 2017","domain":"optical_engineering"}
{"url":"https://ukroboronprom.com.ua/en/struktura/derzhavne-pidpryyemstvo-izyumskyj-pryladobudivnyj-zavod.html","date":"2021-01-21T12:28:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703524743.61/warc/CC-MAIN-20210121101406-20210121131406-00163.warc.gz","language_score":0.81062912940979,"token_count":143,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__2386440","lang":"en","text":"66, Nezalezhnosti ave, Izium, Kharkov region, 64302, Ukraine\nTelephone: +38 (05743) 2-23-18, 2-41-76, 2-15-48, fax +38 (05743)2-10-78\nField of activity:\n1.Production of high-quality optical glass.\n2.Design and manufacture of optoelectronic devices guidance systems and their components for antitank weapons system; design and manufacture of sea-based observation stations, sighting and fire control systems, driver night vision devices for all types of armored vehicles, antiaircraft sights; comprehensive range of observation devices for armored vehicles.","domain":"optical_engineering"}
{"url":"http://britishtrucking.co.uk/product/boolavard-2-pack-hd-night-day-vision-driving-wrap-around-anti-glare-sunglasses-with-polarized-lens-for-man-and-women/","date":"2019-09-17T21:58:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573121.4/warc/CC-MAIN-20190917203354-20190917225354-00318.warc.gz","language_score":0.9031285047531128,"token_count":549,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__59547717","lang":"en","text":"2 PACK HD Night and Day Vision Wrap Around Anti Glare Driving Sunglasses with Polarized Lens Unisex\nDay black lens sunglasses or Green lens Sunglasses or brown lens sunglasses\nPolarized lenses for crystal clear vision and maximum sun protection\nThe glasses not only filter harmful UV rays, but polarize the light and thus reduce annoying reflections.\nYou will also be astonished: with these eye wear you can even see through the reflections of the sky and clouds on water surfaces or car and window panes.\nThe attachment is simply placed on the eyeglass frame and can be folded up easily if necessary.\nThe perfect and cost effective solution for all wearers of glasses\npolarized lenses, UV protection\nGlare-free light brightness and sharper contrasts\nNight vision Yellow sunglasses\nHigh contrast enhancement for absolutely sharp vision in difficult light\nAre you feeling well so that you can see everything at night rather blurry? Or turn off the headlights and street lamps? With these glasses you have in the future even at night the full view.\nThanks distinct contrast enhancement you see everything much clearer way, also a treat for your eyes at twilight, fog, snow or heavy rain.\nThis technique has been used successfully for many years of ski-athletes.\nAt night you are now less blinded by bright light sources such as oncoming cars.\nIdeal even for eyeglass wearers: you can leave on your visual aid and support the Night Vision comfortable about it.\n【DOUBLE USE NIGHT VISION OVER GLASSES】: our night sunglasses are designed for double use. First, it is designed for people to wear over their prescription glasses. Second, if you don’t have the prescription problem, you can wear it as normal night driving sunglasses which provide you with safety protection.\n【ANTI-GLARE】: Boolavard over glasses are made with special lens with anti-glare function, it will help to reduce the glaring headlights from other cars, add contrast to your vision and increase visual clarity when you drive at night, in dusk or rainy day, helping you drive safely.\n【SUPER LIGHT FIT OVER GLASSES】: Made with special materials which are extremely flexible, durable and light weighted (ONLY 23g), you hardly feel any weight even if you wear 2 pairs of glasses. It is an amazing design for people who wear prescription glasses.\n【ANTI-IMPACT】: Our night driving glasses are made with high quality anti-impact lens, protecting your eyes all the time.\n【UV400 & POLARIZED】: Our sunglasses over glasses provide 100% UV400 protection, and they are polarized.","domain":"optical_engineering"}
{"url":"https://www.ibc.sinica.edu.tw/Research/ViewLP?DatetimeStr=20221214161115","date":"2023-09-30T10:25:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510671.0/warc/CC-MAIN-20230930082033-20230930112033-00140.warc.gz","language_score":0.9051896333694458,"token_count":238,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__225117501","lang":"en","text":"Real-time tracking of membrane proteins is essential to gain an in-depth understanding of their dynamics on the cell surface. However, conventional fluorescence imaging with molecular probes like organic dyes and fluorescent proteins often suffers from photobleaching of the fluorophores, thus hindering their use for continuous long-term observations. With the availability of fluorescent nanodiamonds (FNDs), which have superb biocompatibility and excellent photostability, it is now possible to conduct the imaging in both short and long terms with high temporal and spatial resolution. To realize the concept, we have developed a facile method (e.g., one-pot preparation) to produce alkyne-functionalized hyperbranched-polyglycerol-coated FNDs for bioorthogonal labeling of azide-modified membrane proteins and azide-modified antibodies of membrane proteins. The high specificity of this labeling method has allowed us to continuously monitor the movements of the proteins of interest (such as integrin α5) on/in living cells over 2 h. The results open a new horizon for live cell imaging with functional nanoparticles and fluorescence microscopy.","domain":"optical_engineering"}
{"url":"http://thecustomizewindows.com/tag/plugin/","date":"2013-05-24T22:58:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705195219/warc/CC-MAIN-20130516115315-00015-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9390785694122314,"token_count":127,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__45045059","lang":"en","text":"Fiber Optic Connectors are special connector for the connection of optical fibers or Fiber optic cables. Prefabricated connectors connects other such components. The corresponding prefabricated optical waveguides are called Fiber Optic Connectors which helps to connect with each other or with other such components. In telecommunications these are used in sender, receiver or amplifier and the in measurement technology these are used in spectroscopy or in medical technologies they are used in laser devices, sensors or detectors. Previously we wrote about Types of Connectors and Gender of Connectors. Also, Fibre Channel Technology and How Optical Fiber Works has been discussed.","domain":"optical_engineering"}
{"url":"https://blogularab.web.app/207.html","date":"2024-03-03T00:10:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476137.72/warc/CC-MAIN-20240302215752-20240303005752-00219.warc.gz","language_score":0.8869429230690002,"token_count":3143,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__201191938","lang":"en","text":"Once you start putting electricity into your reprap even at just. A cheap laser diode is the first thing you need to make your very own high powered laser capable of burning paper. This block diagram is a representative sample, meant to familiarize the users with terminology and basic elements, not an exhaustive evaluation of what is available on the market. Laser diode mine is red you could buy any color it hardly matters 10 microfarad 16v. Jan 03, 2018 how to wire12v ttl stepdown laser diode ld power supply driver board with the ttl controlling using arduino nano board grbl library.\nIf you then try to power this damaged laser diode with a driver circuit using optical. Every laser driver are easy to use with laser diodes. The laser diode can be modulated at very high speeds. An introduction to pulsedcurrent laser diode drivers bob schmid dei scientific technical support b. If the laser driver draws 160 ma, which is what we would expect for a 65mw red laser diode drawing 150 ma, l1 will drop to 8 v and q1 will dissipate 300 mw. Sorry for so basic questions, i just have never made stuff like this. How to build a laser diode circuit learning about electronics. View and download samsung clp 300 color laser printer service manual online. How to make a laser diode driver that enables you to burn. Links to zip files with the latest version of the complete sams laser faq may be found in home and mirror site. It has been designed to be integrated into systems for maximum performance at a cost far below traditional laboratory and scientific diode laser drivers. Im attaching a photo of a driver circuit i found online.\nLaser diode a beginners guide to laser diode driver basics and design fundamentals, article explains how laser driver s work and the types of commercially available drivers. It is an ideal light source for printing and medical applications. Also source code of lasergrbl is available under gplv3 license. Laser diode power supply 4 schematic reld4 lddrive. Bernard kippelen school of electrical and computer school of electrical and computer engineering. This article will help you understand pulsedcurrent laser diode. We offer drive electronics for the easy operation of all types of laser diodes. User manual ldd6000 cw laser diode driver the ldd6000 laser diode driver is intended for oem laser applications using high power diode lasers. Lasergrbl is free and opensource, but its development require time and money. You can get old dvd rw drives on ebay for 15usd, or just look around and ask friends if they dont have some old unused drives. Samsung clp 300 color laser printer service manual pdf.\nOn most cnc machines a spindle output or spindle speed output can be used to control the laser power by way of changing the impulse duration or by changing the voltage on the output slot. Aug 29, 2012 im new to all this stuff so could you tell me the components for testing a red laser driver circuit. Adjustable 2w 445nm445nm blue laser driver circuit 2around ol4452ad features 5. Do not look into the laser beam or shine the laser beam into your eyes, other peoples eyes, or pets eyes. How to wire12v ttl stepdown laser diode ld power supply driver board with the ttl controlling using arduino nano board grbl library. Follow this simple video and you shall not be disappointed.\nD6505i 650nm 5mw laser diode product description d6505i is a 650nm mocvd grown laser diode with quantum well structures. Tida01573 nanosecond laser driver reference design for. Dissection of green laser pointer here is the complete sequence of photos of the dissection of a 532 nm green laser pointer. The block diagram in figure 1 shows a very basic laser diode driver or sometimes known as. Jun 12, 2017 a simple laser diode driver circuit utilizing tis lm317 pdf. Laser diode drivers vary widely in feature set and performance. Would this be a suitable driver circuit for this laser diode. Capacitor c1 determines the turnon delay for the laser. An introduction to pulsedcurrent laser diode drivers.\nEverything about ttl and laser control endurancelasers. How to wire 12v ttl stepdown laser diode ld power supply for. We use zincoxide heat paste and lightly clamp the pintype heatsinks with a pair of small screws. Wmdc enables a pc and a windows mobilebased pocket pc to communicate. Design and test of fast laser driver circuits since the invention of the laser by theodore h maiman 50 years ago, lasers have found widespread applications in various technological fields, such as telecommunications, industrial production 1, and sensor and measurement equipment. A circuit built on the simplest dcdc forward bulk converter is shown in fig. For the driving of the laser diodes ld special drivers circuits are used. Laser diode drivers medium and highpower drivers for. Dec 31, 2007 here is a great video on how to make a laser diode driver. Schematic of current power supply for double laser from dvdrw burner drive with switch for selecting operation mode red infrared both. Side shooting class 3a red laser pointer always on. Ir lasers are commonly used by the military to help track targets, but they have civilian applications as well for example, in laser cutting or laser rangefinding. I make driver circuits for 10w and 20w lasers so im familiar with what they require.\nA driver circuit is a circuit which can limit appropriately the amount of current being fed into the laser diode, so that it can function correctly. The purpose of this laser diode tutorial is to provide the information necessary to create a long lifetime, stable laser diode system. Introduction this expanded table of contents toc provides links to all of the files and major entry points of sams laser faq official overly long name. Use of controls or adjustments or performance of procedures other than those specified herein may result in exposure to hazardous invisible laser radiation, damage to, or malfunction of the laser. Design and test of fast laser driver circuits since the invention of the laser by theodore h maiman 50 years ago, lasers have found widespread. Sams laser diode driver 1 schematic sgld1 sgld1sch. With soft starting circuit protection,no harm to diode even of frequent open pin connection is similar with led diode pin connection,there is pin conneciton. This white paper describes the design of fast driver circuits, pcb layouts and optical measurement considerations, as well as a solution to achieve an ideal design. How to wire 12v ttl stepdown laser diode ld power supply. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. The ad9662 laser diode driver evaluation board schematic and datasheet. Laser warning label supplied must be installed on the firearm with the laser aperture arrow pointing to the laser diode lens. Laser diode driver circuit homemade circuit projects. If you want to see the pdf of the datasheet, click on the datasheet link below.\nToo little current and the laser diode will not have sufficient power to turn on and operate. Nanosecond laser driver reference design for lidar pdf 1277. Analog laser diode setup for gray scale image engraving. With the laser driver circuit drawing 100 ma, l1 will be 10. Adjustable 2w 445nm445nm blue laser driver circuit 2a. Ive been working on this laser for weeks, but couldnt find the time to complete it. The ld2000r is a stable laser diode current source that can be operated with laser diodes having a common laser diode anode and monitor photodiode cathode. These devices are used in applications such as materials processing, illumination, medical and sensing applications. If current is low then it will not operate, because of not having sufficient power. Lddseries laser diode driver is intended for single laser diode driving. Clp 300 color laser printer printer pdf manual download.\nLight laser led circuitscircuits and schematics at next. This device contains a builtin rechargeable lithium battery and cannot be. High power laser diodes 10 watts are available at wavelengths from the near infrared through near the 2000nm region. Laser diodes are used many applications including cd, dvd drives and fiber optic interfaces. Tida01573 nanosecond laser driver reference design for lidar. The driver operates in an automatic power control apc mode using the builtin monitor photodiode integrated in the laser diode for feedback. Laser diode 650nm, 5mw a laser diode is a device which emits light by the process of optical amplification depend on stimulated emission of electromagnetic radiation, in simple we can say it laser light.\nSevere burns will result from skin exposure to the laser beam. Since no green direct injection laser diodes are currently available, these pointers are based on the use of diode pumped solid state frequency doubled dpssfd laser technology. Focus invisible co2 laser first with the ruler then fire a dot on a piece of paper and align the red laser dot so it hits the same spot. Pmic laser drivers integrated circuits ics digikey. A laser diode driver circuit is a circuit which is used to limit the current and then supplies to the laser diode, so it can work properly. Collimators made of glass or plastic are used to produce the most precise beam profile possible from the emitting laser diode. An introduction to laser diodes technical articles. The next step was to order samples from ti, while exporting schematic from. This does add another set of steps to assembly, but we stuck with larger sizes to make it fairly painless. Laser diode a beginners guide to laser diode driver basics and design fundamentals, article explains how laser drivers work and the types of commercially available drivers. Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced. Drive electronics for cw laser diodes laser diode accessories.\nThis circuit also allows for digitally pulsingmodulating the laser. Design of highspeed cmos laser driver using a standard cmos technology for optical data transmission approved by. Jeff woodcock, and his son jeffery, for their assistance and photos. Sams laser faq safety, info, links, parts, types, drive, construction a practical guide to lasers for experimenters and hobbyists. How to make a laser diode driver that enables you to burn paper. Can you go into more details of how to use the testing circuit please. The optional beam combiner provides better performance since it goes through the lens. Each output includes two 8bit digitaltoanalog converters dac with programmable gain and up to 400ma driving capability per channel. If we directly connect it to the supply, due to more current it will damage. Its a good idea to protect your investment in a dvd burner diode by hooking it up properly.\nFurthermore, in a driver circuit for a laser i need to regulate not only voltage but current as well. In all of the discussed circuits the input voltage e is accepted as constant. One key section of a laser diode driver is the adjustable current source. How to make a weapons grade laser class iv 2000mw laser. This brief paper describes two control systems mechanical and electronic currently in use to control a 1. In this project, we will show how to connect up and build a laser diode circuit. This is an approximately 2000mw 450nm laser that i built from scratch into my own aluminium housing. Laser drivers ic laser diode drivers lm317 laser drivers. Laser drivers, also known as a laser diodes driver and sometimes as a laser diode controller, is a device used in converting very highspeed digital data to analog signals used to drive laser diodes. Im not for sure on the specs of the diode but im guessing its more than 100mw.\nIm new to all this stuff so could you tell me the components for testing a red laser driver circuit. While the focus in communications is on achieving high. Nova ms60 measuring instruments pdf manual download. This page contain electronic circuits about laser circuits at category laser circuit page 2. The resistor determines the output current to the laser diodes using the formula i 1. Here is a great video on how to make a laser diode driver. The yellow line is at 27 c, the red line is at 100 c, and the cyan line is. As the element is damaged the laser gets damaged or not able to work. Led lighting, or by using red, blue, and green lasers in. The next step is understanding from a schematic point of view how a typical laser diode current source works. A simple laser diode driver circuit utilizing tis lm317 pdf.\nWith just two resistors the user is able to regulate both the operating current and thus the laser power and the pulse length. The next step was to order samples from ti, while exporting schematic from fig. Pulse circuits for infrared leds and visible diode lasers. The max3601 laser driver for pico projectors supports video imaging with red, blue, and green lasers. Reference board orientation is component side up, power inputs to the left. Generally lm317 is used for regulating power in laser diode driver circuit. Chameleon crystal laser marking system installation and maintenance manual 2 safety laser safety the chameleon series marking system contains a stateoftheart diodepumped solidstate laser that produces intense and invisible laser radiation at a wavelength of 1064 nm in the near infrared spectrum. Visible diode laser lowspeed driver for longer pulse widths and with risefall times no shorter than 200 ns, the 555 timer chip can be used to directly drive a visible diode laser at the nominal current level usually 20 30 ma with a current limiting series resistor.\nPdf design of yag coated laser diode driver with feedback. The most common devices are in the range of 808nm through 980nm. Laser projection with arduino schematic circuit diagram. At the time of manufacturing of red lasers a special care is taken to avoid surge like static electricity and increase in current, because in red laser the oscillation is occur with the low power of 2 to 3 mw even after the breakdown. The more complex laser driver circuit, in figure 10 below, uses a 10bit dac using a 3wire serial input to operate and maintain the laser diode at a constant average optical output power. This section responds to the control system section by driving current to the laser diode. Please read user manual before starting operations. In continuous mode, there is the maximum frequency and you can toggle on and off the driver.777 1478 633 226 445 507 1614 833 19 1120 460 726 31 957 337 1346 1054 1606 732 65 584 1072 1598 1367 258 748 1143 672 1419 74 1137 753 841 552 1459 766 372 1295 948 296 636 909 965 1476 1395","domain":"optical_engineering"}
{"url":"https://jeipcdf.cnrs.fr/quantum-photonics/rydberg-project/","date":"2024-04-15T05:43:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00762.warc.gz","language_score":0.9243731498718262,"token_count":320,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__34183431","lang":"en","text":"Quantum engineering consists in building systems for safer communications, faster computations or more precise measurements out of elementary quantum “bricks”. Among such “bricks”, optical photons have many useful properties. They are easy to manipulate individually, their “quantumness” survives outside a vacuum chamber or a cryostat, and they can be transmitted over long distances. Unfortunately, they don’t interact with each other, which it makes it difficult to actually “assemble” something out of them.\nOptical photons don’t interact with each other, but atoms do. So we create interactions between photons using interactions between atoms. We send the photons through a small laser-cooled gas, and use a laser to convert them into atomic excitation waves. These waves involve highly-excited Rydberg states, where atoms interact with each other very strongly. As a result, a single photon can fly straight through the gas, but other photons arriving at the same time are scattered around.\nIf one puts the atoms in a cavity, things change a little. Instead of being scattered randomly, photons bounce off the cavity in a known direction, but the presence of the first photon in the gas flips their phase. This mechanism can be used to create non-classical light and realize two-photon quantum gates.\nIn addition, the flexible geometry of our cavity allows us to either confine the photons to a single mode, or to let them wander around and organise themselves into exotic quantum states.","domain":"optical_engineering"}
{"url":"https://www.carazzai.com/en/laserscanner.php","date":"2018-07-22T02:47:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593004.92/warc/CC-MAIN-20180722022235-20180722042235-00195.warc.gz","language_score":0.8722779154777527,"token_count":160,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__105425552","lang":"en","text":"APPLICATIONS FOR LASER SCANNER\nMeasurements taken with laser scanner have the particularity of being composed of massive amounts of points\nSURVEYS FOR TOPOGRAPHY AND DESIGN\nFrom 3D points detected by laser scanner you can define project axes with direct extraction of prifiles and sections.\nSurveys performed with laser scanners to detect existing buildings.\nDirectly from points cloud detected by laser scanner are extracted sections that are referred to a planimetric axis and to an altimetric profile.\nSURVEYS PERFORMED WITH RPAS (Remote Piloted Aircraft System)\nOn the points cloud detected with RPAS you can perform points classification, direct extraction of profiles and sections,\ninterpolation with the possibility of grid correction.","domain":"optical_engineering"}
{"url":"https://www.physics.uci.edu/node/13861","date":"2020-02-27T05:47:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146647.82/warc/CC-MAIN-20200227033058-20200227063058-00414.warc.gz","language_score":0.9377727508544922,"token_count":158,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__9715651","lang":"en","text":"The first optical devices date back 2700 years while the laser was invented just 50 years ago. Advances in these technologies in the 20th century that are continuing (and perhaps accelerating) today have led to the development of products and systems that impact our lives on a daily basis. From vision enhancement to early disease diagnosis, from gaming interfaces to high speed communication networks, from renewable energy to enhanced security, from the cosmic scale to the molecular level, optical science and engineering is a fertile ground for the creative scientist and engineer. This talk will provide an overview of how our world today is impacted by optics and lasers and will look to how optics can assist with some of the greatest engineering challenges we face in the coming decades.\nSpecial Plasma Physics Seminar: Harnessing Light for a Better World","domain":"optical_engineering"}
{"url":"http://www.lspcorp.com/pcb006.html","date":"2022-01-20T07:56:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301730.31/warc/CC-MAIN-20220120065949-20220120095949-00705.warc.gz","language_score":0.8795821666717529,"token_count":111,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__195793597","lang":"en","text":"PCB service bureau : PCB (printed circuit board) AOI\nautomatic optical inspection services page.\nAs you already know, Automatic Optical Inspection (AOI)\nis the method of choice among PCB manufacturers for\ninspecting layers of printed circuit boards during production.\nUtilizing Optrotech Vision 206/206E AOI Systems, LSP\nnow offers automatic optical inspection of your PCB\npanels by scanning them to detect defects. Moreover,\nthese defects may be marked directly on the panel.","domain":"optical_engineering"}
{"url":"https://www.soingphotonics.com/sys-nd/92.html","date":"2024-02-24T15:42:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474541.96/warc/CC-MAIN-20240224144416-20240224174416-00573.warc.gz","language_score":0.8741475343704224,"token_count":599,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__117156087","lang":"en","text":"3D Galvo Head for High-Quality Laser MKarking on Various Surfaces\nInthe dynamic world of laser marking, businesses constantly seek innovativesolutions that offer enhanced performance and versatility. Soing Photonics isproud to introduce our advanced 3D galvo head,designed to revolutionize laser marking capabilities. Our compact-sized galvohead allows for seamless integration into existing setups, saving businessesvaluable time and resources. Additionally, the head's versatile capabilitiesenable it to mark on 3D, planar, inclined, and curved surfaces, expanding thepossibilities for laser marking applications.\nCompact Size and Versatile Capabilities\nTheSOING 3D galvo head is not only known for its exceptional performance but alsofor its compact size, making it a standout solution for easy integration intodiverse industrial setups. Whether you're operating in a manufacturingfacility, research laboratory, or production line, our galvo head seamlesslyadapts to enhance your operational capabilities without taking up valuablespace. Its compact size doesn't compromise on performance, allowing you toachieve high-quality laser marking on various surfaces, including 3D objects,planar materials, inclined surfaces, and even curved objects. With SOINGPhotonics, experience the freedom of laser marking on a wide range of objects,thanks to the versatility and precision of our compact 3D galvo head.\nEnhanced Performance and User-Friendly Design\nAtSOING Photonics, our priority is to deliver cutting-edge solutions that elevateperformance and efficiency. Our 3D galvo head is designed with seamlessintegration in mind, ensuring enhanced performance through compatibility withexisting software and equipment. The head adheres to the standard XY2-100protocols, guaranteeing compatibility with commonly used systems. Thiscompatibility streamlines the integration process and eliminates any potentialworkflow disruptions, allowing businesses to quickly and effortlesslyincorporate our galvo head into their operations. Additionally, theuser-friendly touch panel design empowers operators to easily select the targetfield size, optimizing marking precision and efficiency. With SOING Photonics'3D galvo head, businesses can experience the power of advanced technology whilemaximizing productivity and achieving outstanding results.\nAllin all, at SOING Photonics, our dedication lies in empowering businesses withstate-of-the-art laser marking solutions. With our advanced 3D galvo head, youcan revolutionize your laser marking capabilities and explore new horizons inthe industry. Trust SOING Photonics to deliver cutting-edge solutions thatprioritize versatility, performance, and user convenience, allowing seamlessintegration into diverse industrial setups. Our commitment to innovationensures that you can experience the power of advanced technology and elevateyour laser marking capabilities to unprecedented levels. Discover the potentialfor enhanced precision and efficiency with SOING Photonics' 3D galvo head,designed to meet the evolving needs of modern industries while deliveringexceptional performance and reliability.","domain":"optical_engineering"}
{"url":"http://falconscan.com/hardware/","date":"2018-11-18T03:41:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743963.32/warc/CC-MAIN-20181118031826-20181118053826-00234.warc.gz","language_score":0.8844901323318481,"token_count":260,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__167344758","lang":"en","text":"Collecting aerial imagery is easy and fool-proof with the FalconScan hardware system. The system consists of four parts: a touchscreen tablet, one or more cameras in a mounting box, a GPS unit, and a payload control box.\nThe tablet runs FalconScan’s unique software, FlightGUI, which dynamically creates a raster pattern based on current solar zenith and azimuth angles. The software handles the camera triggering, assuring uniform and complete coverage of your area of interest, and logs a GPS location for each frame.\nThe FalconScan system creates high resolution digital aerial images in Near Infrared (NIR) and true color using either a one or two camera configuration. Imagery from our NIR camera alone is sufficient to generate green Normalized Difference Vegetation Index (NDVI) data; when a visible spectrum camera is added, red NDVI can also be calculated as well.\nFalconScan systems have been commercially deployed in over 200 manned and unmanned data collects. They can be installed in any aircraft that has an aerial camera port or an FAA-approved CessnaCam Airborne Sensor Pod. At only 10lbs, the size and weight of the camera system, along with the integrated sensor operation software, make this a powerful tool for unmanned platforms.","domain":"optical_engineering"}
{"url":"https://www.sensorytoywarehouse.com/fibre-optic-spray-lamp-glitter-base-2","date":"2019-04-25T11:50:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578721441.77/warc/CC-MAIN-20190425114058-20190425140058-00445.warc.gz","language_score":0.7187850475311279,"token_count":122,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__180503304","lang":"en","text":"LED Mood Light Fibre Optic Lamp Ice Colour Changing Base\n- Part Number Code: SFL13\n- Availability: In Stock\nUsing fibre optic technology this lamp will gently phase through different colours. Creates a calming and relaxed atmosphere with its mesmerising glow.\n- Soothing colour changing mood light\n- Mesmerising fibre optic spray\n- Transparent light up ‘ice’ crystal filled base\n- Requires 3 x AA batteries\nSize: 9/9/36 cm.\nPower Source: Mains\nUsage: Visual effects\nWeight: Approx: 360 g.","domain":"optical_engineering"}
{"url":"https://www.eosgo.io/marketcap/led-okkkkkkkkkkk","date":"2021-04-17T17:06:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038461619.53/warc/CC-MAIN-20210417162353-20210417192353-00252.warc.gz","language_score":0.9277427196502686,"token_count":129,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__230018252","lang":"en","text":"LED is based on the lighting passport issued by EOS main network, with a total circulation of 1 billion yuan and a real circulation of 20 million yuan. It is a de-centralized digital passport. In the future, LED can be used to pay for lighting products. At present, it is the first technology application of energy-saving lighting industry in the block chain in the world. It combines the technical characteristics such as unalterable, makes the energy-saving lighting industry chain realize the information consensus of upstream, middle and downstream, and creates a digital passport combining the real economy of energy-saving lighting with the assets of block chain.","domain":"optical_engineering"}
{"url":"http://reach3d.net/index.html","date":"2017-04-28T00:26:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122720.81/warc/CC-MAIN-20170423031202-00577-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.879061222076416,"token_count":220,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__113789385","lang":"en","text":"By removing the complexity from 3D capture REACH3D's current breakthrough technology -- Single Light Path 3D HD -- is lowering costs and allowing development of both new applications for stereo 3D as well as those previously thought impossible or impractical.\nSinge Light Path 3D (SLP3D) is created when REACH3D’s patented module is integrated into a single “eye” (single lens). No longer is the traditional “right eye” / “left eye” system required to produce stereo 3D.\nTraditional 3D capture methods are expensive, very complex and labor intensive to manage and place great limitations on creative / operational freedoms. REACH3D’s SLP3D technology frees 3D capture from those restraints once and for all.\nWhen combined with REACH3D’s other innovative technologies Single Light Path 3D applications can also provide:\nJust a few of the many possible applications include:\nTo learn more about the advantages of this system or to schedule a demonstration please click here to contact us","domain":"optical_engineering"}
{"url":"https://www.omiq.es/en/treatments/intracorneal-lenses/","date":"2023-10-01T22:00:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510941.58/warc/CC-MAIN-20231001205332-20231001235332-00746.warc.gz","language_score":0.9353125691413879,"token_count":233,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__46162087","lang":"en","text":"What are intracorneal lenses?\nThey are 1 mm radius lenses, completely transparent, which are surgically placed in the centre of the cornea to modify its asphericity.\nThey are used to correct presbyopia, since they change the depth of focus and favor close vision.\nIn what cases are they used?\nPresbyopia involves the loss of elasticity of the crystalline lens and therefore of its accommodation capacity, which translates into difficulty focusing on nearby objects. Near vision glasses are used to correct prebyopia, so intracorneal lenses are ideal for patients who wish to get rid of them.\nIn addition, the surgery is easily reversible by removing this lens, or by placing another.\nA complete ophthalmologic examination should be performed to determine if the patient is suitable for surgery and which lens should be placed.\nPresbyopia tends to evolve, so as time goes by, vision correction measures must be corrected. However, the technique of intracorneal lenses is increasingly reversible, to modify the correction of the patient’s vision without causing inconvenience to the patient.","domain":"optical_engineering"}
{"url":"https://nightviszon.com/collections/frontpage/products/nightviszon-elite-series-h13-led-headlight-conversion-kit","date":"2021-01-26T11:02:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704799741.85/warc/CC-MAIN-20210126104721-20210126134721-00764.warc.gz","language_score":0.815893828868866,"token_count":224,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__2373060","lang":"en","text":"- Focused Beam\n- Ultra White 5700K Light\n- Easy Plug & Play Installation\n- 30,000 Hour Operating Life (30X longer than stock halogen bulbs)\n- 2 Year Warranty\nFocused Beam: Optimal night driving clarity from industry leading Philips Lumileds Luxeon Z ES LEDs, and designed to work in sync with your headlight housing for maximum light output and focus.\nUltra White Light: The 5700K Ultra White color temperature closely matches the light color temperature of the sun at noonday, providing optimal night diving conditionings, putting your eyes and mind at ease.\nEasy Plug & Play Installation: Each kit plugs directly into your factory headlight wiring harness, and each bulb fits perfectly inside the headlight housing. No cutting. No splicing. No hassle.\n30,000 Hour Operating Life: Designed to outlast the leading halogen bulbs by 30X. Save money in the long run, while enjoying superior performance for years to come.\n- 2 NightViszon LED headlight bulbs\n- 2 NightViszon LED drivers\n- 1 Installation kit","domain":"optical_engineering"}
{"url":"https://www.fotonowy.pl/products/mini-photoelectric-spectrometer/?lang=en","date":"2022-10-05T21:21:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337668.62/warc/CC-MAIN-20221005203530-20221005233530-00601.warc.gz","language_score":0.889048159122467,"token_count":233,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__87180301","lang":"en","text":"This is an entry level setup for photoelectrochemistry. It consists of a potentiostat, a LED revolver, a universal electrochemical cell and a set of electrodes: reference Ag/AgCl and platinum counter electrode.\nThe device is ready for two and three electrode measurements.\nThe LED revolver delivers irradiation from 10 LEDs in UV, Vis and NIR range.\nAlthough this is a budget version of a full photoelectric spectrometer, it is rich in measurement possibilities.\nCurrents can be measured as a function of external potential, illumination wavelength or intensity. Open Circuit Potential determination of a sample under illumination is also provided.\nMini photoelectric spectrometer can measure electric currents from 10 mA to 1 pA with a single pA resolution.\nLED revolver automatically selects one of the 10 mounted LEDs.\nOne can perform current measurements when potential and light intensity are scanned across set ranges.\nA sample is placed in a PTFE electrochemical cell that handles both transparent and opaque substrates.\nThe Kelvin probe system allows precise measurement of work function of different semiconducting and conducting materials with high precision and accuracy","domain":"optical_engineering"}
{"url":"https://amplify.pepperl-fuchs.com/articles/245/fully-automated-freight-measurement","date":"2023-12-04T15:44:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00854.warc.gz","language_score":0.9507725238800049,"token_count":1890,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__253712497","lang":"en","text":"Mar 13, 2023\nFreight Measurement 2.0\nWith the aim of digitalizing measuring tasks in the logistics sector, LASE Industrielle Lasertechnik GmbH is developing laser-based systems for automated freight measurement. In these applications, the R2000 LiDAR sensor from Pepperl+Fuchs enables high-precision 3-D measurements within seconds.\nWhether sending standard pallets, oversized freight, or other general and bulky goods, every company that ships products benefits from being able to measure cargo dimensions as accurately as possible. Accurate measurements not only mean that freight costs can be precisely calculated, but they also allow the loading of trucks to be optimized to ensure that the limited space in the truck is used in the ideal way.\nIn many companies, freight measurement is still carried out manually. \"Measuring the pallet by hand with a folding rule, writing the numbers on a piece of paper, and typing them into the PC—a process as complex as it is prone to errors,\" comments Lars Ambrosy, Managing Director of LASE Industrielle Lasertechnik GmbH. To digitalize this process, his company has developed systems for automated freight measurement—with the support of LiDAR sensors from Pepperl+Fuchs.\nLeaving Behind Pen and Paper\nLASE specializes in solving a wide range of industrial applications with laser technology. For this purpose, the company uses its own application-specific software to apply further processing to raw data from laser sensors. The company, based in Wesel, North Rhine-Westphalia, Germany, has been well-known in ports, steel mills, and mining operations since the 1990s. \"About five years ago, we began to gain a foothold in the logistics sector,\" says Ambrosy. \"We wanted to use the technologies that we have been using on a large scale for a long time in the port sector for similar measuring tasks in logistics.\"\nThe advantages offered by automated freight measurement are obvious to the Managing Director of LASE: \"Digitalizing the processes means that freight can be measured without any need for manual recording or data entry. This minimizes the work involved and the likelihood of errors, and also increases traceability.\"\n\"We use the R2000 LiDAR sensor to create a 3-D point cloud image of the object being measured. From this, the dimensions and volume of the freight are determined to an accuracy of +/- 20 mm.\"\nMeasurement Results in Seconds\nTo enable fully automated measurement of pallets and other freight items, LASE has developed a series of systems called LaseAFM. \"These systems use the R2000 LiDAR sensor from Pepperl+Fuchs to generate a 3-D point cloud image of the object being measured. From this, the dimensions and volume of the freight are determined to an accuracy of +/- 20 mm. This data can be automatically fed into the merchandise management system,\" explains Ambrosy.\nThe LaseAFM-2-MB, an especially innovative system from the LaseAFM series, is used when pallets or other cargo items are measured on a measuring surface on the ground. A measuring beam is mounted diagonally above the surface, suspended from the ceiling, for example, and a LiDAR sensor is mounted in a swivel unit at each of the two ends. \"The laser scanners are rotated once from left to right by a servo motor, therefore capturing all sides of the pallet. In combination with the movement data from the swivel unit, an evaluation unit determines the volume requirement within a few seconds,\" says Ambrosy, summarizing the function principle.\nA clear path for forklifts: The measuring beam of the LaseAFM-2-MB system can be easily suspended from the ceiling.\nA R2000 2-D LiDAR sensor from Pepperl+Fuchs is located at each end of the measuring beam.\nA swivel unit rotates the sensors from one side to the other during measurement.\nThis allows the laser scanners to capture all sides of the freight.\nA 3-D point cloud is generated from the measurement results.\nThe design of the LaseAFM-2-MB offers numerous benefits compared to other solutions on the market, according to Ambrosy. Since the measuring beam is suspended from the ceiling, there are no metal parts that could obstruct the passage of forklifts or material handling equipment. Unlike systems based on a square frame with two linear units, the LaseAFM-2-MB is characterized by an especially high degree of efficiency and low weight: \"Because we only need one measuring beam, our system is easier to install, easier to maintain, and less prone to failure.\"\nHighest Resolution, Compact Design\nWhen laser measurement technology specialist LASE began to develop its freight measurement systems, the selection of the appropriate sensor technology played a decisive role. To measure pallets quickly and precisely in 3-D, sensors were needed that offered the right resolution. Another challenge was posed by the poorly reflective black plastic film that is often used to wrap pallets.\nIn search of the appropriate sensor technology, LASE turned to Pepperl+Fuchs. For freight measurement automation, Business Development Manager Arno Hagemann recommended the use of the R2000 2-D LiDAR sensor: \"This sensor is characterized by a small light spot in combination with the highest angular resolution in its class. It offers an exceptionally high pixel density—with a compact design and a weight of only 800 g.\"\nWith its angular resolution of up to 0.014°, the R2000 2-D LiDAR sensor offers maximum precision.\nThe 360° measuring angle of the R2000 ensures all-around visibility.\nOptimized for Specific Requirements\nAmbrosy explains in more detail why these features were of particular importance for the LaseAFM-2-MB system: \"The high scanning frequency of the R2000 allows for quick measurement, while the small light spot ensures precise scanning. This allows us to accurately capture the dimensions of the freight in a few seconds. The sensor's low weight is also an advantage, because we were able to keep the servo motor system in the swivel unit small.\"\nHowever, not all requirements of the application were met from the outset—the ability to detect black packaging film was a particular challenge. \"When the request arrived from LASE, we had already started development of a new version of the R2000,\" recalls Hagemann. \"To make the application requested by LASE a reality, we optimized the new version to give it a very wide detection range on black surfaces.\" This range on the new OMD60M model has been doubled in comparison to the standard model. \"Although the black film reflects only three to four percent of the light, that still results in a detection range of about eight meters, which is completely sufficient for measuring freight,\" Hagemann calculates.\n\"To make the application a reality, we optimized the new version of the R2000 to give it a very wide detection range on black surfaces.\"\nAmbrosy looks back positively on the cooperation with the Mannheim-based automation specialist: \"It wasn't long before Pepperl+Fuchs provided us with a prototype that we were able to test in the application. The sensor has demonstrated the perfect properties for detecting black packaging film. In addition to its high resolution, compact design, and economical price, this was a major reason why we chose the R2000.\"\nWide Range of Uses\nLASE also relies on the 2-D LiDAR sensor from Pepperl+Fuchs for other automated freight measurement solutions—the LaseAFM-Tower system, for example, which is intended for use on semi-automatic wrapping machines. The pallet is placed on a turntable and wrapped in film to secure the load. The OMD60M version of the R2000 measures the pallet during the rotating process. A single sensor is therefore able to capture all sides of the pallet.\n\"This form of freight measurement is especially time-saving because the measurement takes place at the same time as the wrapping process,\" explains Ambrosy. According to him, the R2000 from Pepperl+Fuchs has been able to prove its worth in this system just as on the Lase-AFM-2-MB—not only because it has a high detection capability for black plastic film, but also because its compact design makes it easy to integrate into wrapping machines.\nToward the Logistics of the Future\n\"Digitalization in logistics is only just starting to take off. We are driving forward this process with our automated freight measurement systems.\"\nThe freight measurement systems from LASE have now been available on the market for over five years. For Sales Director Lars Mohr, the story so far has been a success: \"We only have satisfied customers—and we are noticing that interest continues to grow.\" As Mohr emphasizes, this is because automated freight measurement offers enormous potential for the future. \"Digitalization in logistics is only just starting to take off. We are driving forward this process with our automated freight measurement systems and helping to reduce the manual workload for companies and make the entire process as efficient as possible.\"","domain":"optical_engineering"}
{"url":"http://wyverntoken.com/index-429.html","date":"2023-12-09T08:10:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100873.6/warc/CC-MAIN-20231209071722-20231209101722-00726.warc.gz","language_score":0.9099779725074768,"token_count":1614,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__178840430","lang":"en","text":"OFC Celebrates High-Performance Optical Interconnects\nOnce again, OFC proved to be the premier showcase of high-performance optical and copper interconnects in communication and network applications.\nThe 2023 edition of the Optical Fiber Communications Conference and Exhibition (OFC) roared back to normalcy after the muting effect of the COVID-19 pandemic. Over 11,500 participants from 70 countries accessed the latest advances in optical and high-performance copper interconnect technology. The sold-out expo floor hosted 515 companies from around the world, allowing face-to-face discussion of specific issues. The list of exhibitors included global industry leaders as well as many innovative startups, many of which used this venue to introduce new products and technologies. Nearly 200 technical presentations, workshops, seminars, and panel discussions presented over five days exposed both in-person and virtual participants to the most advanced interconnect technology. Topics ranged from Test & Measurement techniques of optical networks to advances in quantum computing.\nThe atmosphere on the exhibition floor and in technical sessions was optimistic. Prospects for optical communication continue to expand as existing interconnects are upgraded and new technologies are introduced. OFC 2023 showcased both optical as well as high-performance copper interconnect technology, reflecting industry preference for multiple options that allow the selection of the most economical interconnect that satisfies the needs of a specific application.\nA few of the highlights observed at OFC 2023 included:\n- Co-packaged optics (CPO) exhibits by many suppliers illustrated the interest this technology is generating. Many issues remain to be resolved, such as location of the laser source, internal fiber management, and field serviceability, but the promise of reduced power consumption and improved I/O panel signal density are key drivers of intense research and development. Several suppliers demonstrated models of the Optical Internetworking Forum (OIF)-driven External Laser Small Form Factor (ELSFP) concept. Advanced 102.4 Tb switches and beyond are likely to make CPO architecture essential. OIF celebrated its 25th anniversary at this year’s event and hosted several live interoperability demonstrations and technology discussions.\n- High-performance twinaxial cable assembles remain a popular option in relatively short-reach applications. The standard passive direct-attach cable has been supplemented with variations that include active cables featuring amplification, equalization retiming, or a combination of each, which can extend the bandwidth and reach of a copper cable assembly. Cables are also available that utilize from 32-gauge to larger 26-gauge conductors to improve performance.\n- Linear drive optical direct attach cable assemblies eliminate digital signal processor and retimer chips from the cable assembly reducing power consumption and resulting heat, both major objectives in new equipment design. Hisense Broadband announced an 800G linear optical direct attach cable targeting applications in artificial intelligence and machine learning.\n- PAM4 modulation has been adopted for channels at up to 212 Gb/s. It is unknown if a higher order modulation will be required beyond that, but PAM 6 or 8 may be viable options.\n- Pluggable optical transceivers were everywhere on the exhibit floor. The QSFP-DD and OSFP formats dominate high-end applications with up to 800 Gb/s performance and reach to 1000Km. InnoLight, for example, showed a comprehensive family of optical transceivers, including 10G, 25G, 40G, 100G, 200G, 400G, and 800G, paving the way to 1.6 Tb links.\n- Pluggable optical transceivers utilizing coherent transmission feature integrated DSP chips and are being driven by demand for increased bandwidth, fiber capacity, automated management, durability, future proofing, reduced power, and cost.\n- A battle is emerging between the use of QSFP-DD/OSFP pluggables and CPO in next-generation hyperscale equipment applications. Multiple chip vendors featured new coherent DSP chips designed for AI applications.\n- Connector manufacturers as well as network operators are waiting for the release of the OSFP-XD pluggable specification, which is now expected by early summer 2023. Adoption of this new high-density interface will require trade-offs between higher panel density and lack of backward compatibility. The reduced profile of OSFP-XD offers increased I/O panel signal density and provides increased front panel cooling options.\n- 200 Gb per lane technology was prominently featured by multiple vendors and is a key technology to enable 1/6Tb networking. IEEE is currently developing the 200G/lane specification that will enable broad adoption of this capability.\n- Near-package high-density copper and fiber interconnects continue to gain traction as ever-shorter PCB trace insertion losses become unacceptable. The Amphenol Overpass family includes the micro Link-OVER and DensiLink connectors; Molex’s BiPass, Samtec Flyover®, and TE Connectivity’s AdrenaLINE Catapult and Sliver connectors are other examples of this class of interconnects.\nThe connector industry was well represented with approximately 30+ connector and cable assembly manufacturers, including industry leaders Amphenol Communications Solutions, Molex, Samtec, and TE Connectivity.\nThe Molex booth demonstrated a wide variety of optical connectors designed for applications in robotics, medical as well as network communications.\nMolex offers a full line of OSFP and QSFP-DD transceivers including 800G DR8.\nAnother demonstration used linear drive technology to transmit 4 X 112 Gb/s through 100 meters of OM4 optical cable.\nThe TE Connectivity booth showcased multiple copper and fiber optic high-speed internal and external interconnect solutions.\nTE showed an 800 Gb/s active optical cable running 8X 106.25 Gb/s PAM4 to a maximum length of 100 meters of OM4 fiber. QSFP-DD connectors reduced power consumption to less than 14 watts per cable end.\nA 1RU rack shelf was populated with developmental OSFP-XD pluggable connectors providing 16 data channels at 112 Gb/lane and delivering 1.6 Tb per port.\nAnother display was running 224 Gb/s PAM4 per channel over one meter of a DAC passive copper cable for an aggregate of 1.6Tb/s.\nA model showed a 112 Gb PAM4 over-the-board copper cable linking a 3.2Tb co-package ASIC using microLGA chiclet sockets to a fully populated array of QSFP-DD connectors.\nOFC23 seminars, panel discussions, and exhibition provided an opportunity to gain insight into where innovation in next generation optical interconnects may be headed.\nSeveral advanced optical fiber-to-PCB connector concepts utilize micro-mirror and lens technology to achieve 90° orientation of the beam were shown. Vendors featured micro reflective elements using glass or metal materials.\nAyar Labs demonstrated the industry’s first 4 Tb/s optical chip-to-chip bidirectional solution. The SuperNova light source powers 8 fiber links using 64 wavelengths, each operating at 32 Gb/s for a total bandwidth of 2.048 Tb/s each direction using less than 5 pJ/bit.\nOnce again, OFC 23 proved to be the premier showcase of high-performance optical and copper interconnects in communication and network applications.\nLike this article? Check out our Datacom Market Page articles and our 2023 and 2022 Article Archive.\n- In New Product Development, Timing is Everything - May 23, 2023\n- Signal Integrity: The Key to Successful High-Speed Circuit Design - April 25, 2023\n- OFC Celebrates High-Performance Optical Interconnects - March 21, 2023","domain":"optical_engineering"}
{"url":"http://automotive-technology.co.uk/?p=1043","date":"2020-06-06T21:28:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348519531.94/warc/CC-MAIN-20200606190934-20200606220934-00368.warc.gz","language_score":0.9518067240715027,"token_count":481,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__179893427","lang":"en","text":"One of the main problems to solve with any automobile instrument or monitoring display is that the driver has to look away from the road to see the information. Also, in other cases, the driver does not look at the display, and therefore could miss an important warning such as low oil pressure. Many techniques can be used such as warning beepers or placing the instruments almost in view, but one of the most innovative is the head-up display (HUD). This was originally developed by the aircraft industry for fighter pilots; aircraft designers had similar problems in displaying up to 100 different warning devices in an aircraft cockpit. Figure 1 shows the principle of a head-up display and figure 2 shows a system in a BMW. Information from a display projector is directed onto a partially reflecting ‘mirror’. The information displayed projected would therefore have to be reversed for this system. Under normal circumstances the driver would be able to see the road through the screen. The brightness of the display is adjusted to suit ambient lighting conditions. A great deal of data can be presented when this system is computer controlled.\nA problem, however, is which information to provide in this way. The speedometer could form part of a lower level display and a low oil pressure could cause a flash right in front of the driver. A visual warning could also be displayed when forward-facing radar detects an impending collision. Current HUD systems are for straight-ahead vision, but liquid crystal rear view mirrors, used to dim and cut headlight glare automatically, can be used as an effective display screen for rear facing, blind spot detecting radar.\n1.Head-up display operation\n2. HUD example (Source: BMW)\nOne interesting study is to determine exactly where the driver is looking at any point in time, which could be used to determine where the head-up display would be projected at any particular time. The technique involves tiny video cameras, coupled to a laser beam that reflects from the cornea of the driver’s eye and can measure exactly where he or she is looking. Apart from its use in research, the eye motion detector is one of a series of tools used in bio-mechanical research that can directly monitor the physical well-being of the driver. Some of these tools could eventually be used actively to control the car or to wake up a driver who is at risk of falling asleep.","domain":"optical_engineering"}
{"url":"http://onestopglasses.co.uk/pupil-distance-ezp-5.html?chapter=0","date":"2015-02-01T21:07:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-06/segments/1422121934081.85/warc/CC-MAIN-20150124175214-00219-ip-10-180-212-252.ec2.internal.warc.gz","language_score":0.936773955821991,"token_count":398,"dump":"CC-MAIN-2015-06","global_id":"webtext-fineweb__CC-MAIN-2015-06__0__159306979","lang":"en","text":"Measuring Pupil DistanceYou may be lucky, your PD may be noted on your prescription. If not you will need it measuring but when you next go for your eye test maybe ask them to measure it for you for.\nThe measurement needed is that between the pupils when the eyes are gazing into the distance. If the eyes are looking at something close (including the person carrying out the measurement) the pupils will be slightly closer together.\nWe recommend the following method.\nIf you are not confident you have the correct measurement you can send a pair of specs to us, and we can take the pupil distance from those, assuming they have been made accurately.\nDoes it matter?You will read on the net that an average is fine, or it hardly matters etc, so what is the truth regarding the pupil distance, or PD?\nWell it depends on the strength of the prescription, a small prescription with the PD slighly off will be no problem at all for most, but a large prescription a considerable way off will cause a certain degree of strain to the muscles which control the direction of gaze.\nThe eyes default to looking straight ahead, turning requires effort.\nPut simply, if the lenses are not centred correctly then the image in front of your pupil is not heading in straight, so to speak, so the eye needs to turn slighty to align it.\nYou can not damage your eyes with incorrectly centred lenses, but fatigue may be experienced with headaches and possibly double vision in extreme cases. In short the larger the presription, the more accurate the PD needs to be for comfortable vision.\nVarifocal lenses require an accurate PD, they have a channel of clear vision as you move from distance to near and it is important that this is correctly placed.\nNOTE if you come across sites which claim to have a formula for measuring PD this is a lie, no such formula exists.\nPostage and Returns\nTerms and Conditions","domain":"optical_engineering"}
{"url":"https://rushguides.com/choosing-the-right-laser-cleaning-machine-for-your-needs/","date":"2024-02-22T00:24:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473598.4/warc/CC-MAIN-20240221234056-20240222024056-00441.warc.gz","language_score":0.9062055945396423,"token_count":1024,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__1329576","lang":"en","text":"New technology in industrial cleaning has made methods faster and more accurate. One such innovation that has gained prominence is laser cleaning. When working in manufacturing, automotive, or restoration, selecting the appropriate laser cleaning machine to achieve optimal outcomes is crucial. This article will help you make an intelligent choice based on your needs.\nUnderstanding the Basics of Laser Cleaning\nTo pick the best laser cleaning machine, start by learning the basics of this new cleaning method.\nHow Laser Cleaning Works\nLaser cleaning is when laser beams remove dirt and unwanted things from surfaces. The pollutants soak up the laser energy. It makes them either evaporate or get blown away by air. This process is accurate and doesn’t harm the surface, so it’s suitable for fragile materials.\nChoose wisely for a cleaner, more efficient future. Explore more about laser cleaning machines and their applications.\nFactors to Consider When Choosing a Laser Cleaning Machine\nLet’s explore the key factors when selecting a laser cleaning machine.\n1. Power and Energy Density\nHow well a laser cleaning machine works depends on its power and energy density. Different applications may require varying power levels. High-power lasers work well in heavy-duty industries, but lower power can clean delicate tasks.\n2. Pulse Duration\nPulse duration refers to the length of time the laser is in contact with the surface. Shorter pulses work well for cleaning. Longer pulses are better for removing bulk material. When choosing the pulse duration for your laser cleaning machine, think about your cleaning needs.\nThe wavelength of the laser beam influences its interaction with different materials. Some materials absorb specific wavelengths more efficiently than others. Pick a laser cleaning machine with the correct wavelength for the contaminants and substrate to get the best results.\n4. Mobility and Ergonomics\nIt’s essential to have a laser cleaning machine that is easy to move and use. It is especially true if you must clean different things in different places. Find a machine that is easy to move and can reach tight spaces without slowing down.\n5. Safety Features\nSafety should be a top priority when choosing a laser cleaning machine. When buying, check for automatic shut-off if overheating, eye protection, and safety interlocks. Investing in a machine with solid safety features can protect your personnel and keep the equipment working for a long time.\n6. Cost of Ownership\nThe initial cost is essential when buying a laser cleaning machine, but so are long-term costs. To determine if the machine is cost-effective, look at maintenance, supplies, and energy use.\n7. Environmental Impact\nIndustries want to be more eco-friendly. It’s essential to assess the environmental impact of laser cleaning machines. Search for machines that reduce waste, use eco-friendly cleaning products, and follow regulations.\nThe Importance of Customization\nWhen selecting a laser cleaning machine, it’s vital to consider customization since every cleaning task is unique.\nTailoring to Specific Applications\nA one-size-fits-all approach does not apply to laser cleaning machines. Imagine machines that let you customize settings like power and pulse to match your cleaning needs.\nIntegration with Existing Systems\nIf you have manufacturing or cleaning systems, a laser cleaning machine that works well with them can improve efficiency. Compatibility and ease of integration should be pivotal in your decision-making process.\nIn conclusion, choosing a suitable laser cleaning machine involves considering different factors. Industries must use new cleaning methods to stay sustainable and maintain quality as they change. Keeping these things in mind helps you make an intelligent decision for your cleaning needs and success.\nAs we navigate the landscape of industrial cleaning, it’s crucial to recognize the transformative power of laser cleaning. This method enhances precision and minimizes environmental impact, setting a new standard for responsible and effective cleaning practices.\nIn the journey towards a cleaner and more sustainable industry, the choice of a laser cleaning machine plays a pivotal role. It’s not just a purchase; it’s an investment in your operations’ efficiency, safety, and environmental responsibility. A suitable laser cleaning machine can elevate your cleaning processes to new heights, ensuring a spotless and environmentally conscious future.\nAs technology advances, so will the capabilities of laser cleaning machines. Staying informed about the latest developments in this field and regularly reassessing your cleaning needs will enable you to effectively adapt and optimize your operations.\nIn the quest for the ideal laser cleaning solution, remember that the right choice is not only about the machine itself but also the long-term impact on your business. Consider factors such as customization, integration with existing systems, and the overall cost of ownership to ensure that your investment pays off in the short and long run.\nSo, whether in manufacturing, automotive, or any other industry that requires precision cleaning, the suitable laser cleaning machine is your key to achieving superior results. Make your decision wisely, and embark on a journey towards cleaner, more efficient, and environmentally conscious operations.","domain":"optical_engineering"}
{"url":"https://technologybux.com/little-reflecting-telescopes-work-in-scallop-eyes/","date":"2017-12-15T06:14:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948567042.50/warc/CC-MAIN-20171215060102-20171215080102-00358.warc.gz","language_score":0.8953556418418884,"token_count":493,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__210036649","lang":"en","text":"An international band of biologists from Israel and Sweden has obtained an in depth view of any scallop’s aesthetic system — a design as high as 200 eyes they state is strikingly similar to a reflecting telescope.\nDepth About Little Reflecting Telescopes Work in Scallop Eyes\nMost pets or animals use lenses to target light onto their retina, a light-sensitive coating of tissue coating the inner part of the eye, though certain sea organisms have implemented mirrors to produce images.\nDr. Benjamin Palmer from the Weizmann Institute of Technology and co-authors looked into the complex firm of the scallop’s reflection.\nUsing various microscopic imaging techniques, the scientists discovered that spatial eyesight in the scallop is achieved through the mirror’s split structure located behind each eyesight, which is fine-tuned to echo wavelengths of light that penetrate its habitat.\n“Scallops have a visible system comprising up to 200 eyes, each made up of a concave reflection rather than a lens to target light,” the analysts said.\n“The hierarchical form of the multi-layered reflection is manipulated for image creation, from the component guanine crystals at the nan scale to the complicated 3D morphology at the millimeter level.”\n“The layered composition of the reflection is tuned to reveal the wavelengths of light penetrating the scallop habitat and it is tiled with a mosaic of rectangular guanine crystals, which reduces optical aberrations.”\n“The mirror sorts images over a double-layered retina used for independently imaging the peripheral and central areas of view.”\n“Our work shows the impressive control the scallop exerts above the growth and layout of crystals to produce a highly reflective reflection capable of developing practical images,” Dr. Palmer and co-workers said.\nEqually the intricate optics of other pets or animals, like lobsters, have an enlightened telescope design, these results may pave the best way to the development of book bio-inspired optical devices for imaging and sensing applications.\nThe findings appear in the December 1, 2017 issue of the journal Science.\nBenjamin A. Palmer et al. 2017. The image-forming mirror in the eye of the scallop. Science 358 (6367): 1172-1175; doi: 10.1126/science.aam9506","domain":"optical_engineering"}
{"url":"http://www.shower-doors.biz/shower-door-glass-types/","date":"2020-11-26T12:25:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141188146.22/warc/CC-MAIN-20201126113736-20201126143736-00675.warc.gz","language_score":0.8989427089691162,"token_count":255,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__6856115","lang":"en","text":"Standard Clear Glass\nWhen it comes to edge color for glass, some things are never as clear as they appear in the showroom. It’s an unfortunate fact: when you order glass for countertops, tables, glass doors, room dividers or shower enclosures, the edge color gradually changes according to the thickness of the glass. Look at the edge of almost any piece of standard clear furniture glass and you’ll notice a green cast. That effect is exaggerated as the glass becomes thicker or longer.\nIn addition to getting darker as it gets thicker, edge color may also be affected by other factors, such as the amount of ambient lighting or the way a shaped edge is contoured.\nThe Edge of Starphire Glass\nIf a dark green or black edge color is undesirable, PPG offers an alternative. Starphire Glass is the industry’s most transparent glass, thanks to a proprietary glass formulation and manufacturing process that gives this extraordinary product a jewel-like blue-edge not available from any other commercial glass product. Even at a length of 130 inches, Starphire glass edge maintains a pleasing blue-green aesthetic that brings more light into interior spaces, while offering unmatched levels of brightness, color fidelity, clarity and visual excitement.","domain":"optical_engineering"}
{"url":"https://masygakosevyn.driftwood-dallas.com/fiber-optics-in-astronomy-iii-book-20677rp.php","date":"2021-06-14T18:09:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487613380.12/warc/CC-MAIN-20210614170602-20210614200602-00476.warc.gz","language_score":0.8809338212013245,"token_count":2001,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__161781828","lang":"en","text":"3 edition of Fiber optics in astronomy III found in the catalog.\nFiber optics in astronomy III\nIncludes bibliographical references.\n|Other titles||Fiber optics in astronomy 3, Fiber optics in astronomy three|\n|Statement||edited by S. Arribas, E. Mediavilla, and F. Watson.|\n|Series||Astronomical Society of the Pacific conference series ;, v. 152|\n|Contributions||Arribas, S., Mediavilla, E., Watson, F.|\n|LC Classifications||QB84.5 .F55 1998|\n|The Physical Object|\n|Pagination||xxv, 352 p. :|\n|Number of Pages||352|\n|LC Control Number||98074355|\nOptics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves Traditional optical fibers, whose refractive index of core is higher than that of the cladding, confine light field by the total internal et al. proposed Bragg fiber (Fig. ) in which rings of high- and low-refractive index are arranged around a central core .In Bragg fibers, light cannot penetrate into cladding since light is reflected by the Bragg ://\nIntegrated Optics: Theory and Technology explains the subject of optoelectronic devices and their use in integrated optics and fiber optic text emphasizes the physics of how devices work and how they can be used in various :// • An optical Fiber is a thin, flexible, transparent Fiber that acts as a waveguide, or \"light pipe\", to transmit light between the two ends of the Fiber. • Optical fibers are widely used in Fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of :// - fibre.\nFiber optics (optical fibers) are long, thin strands of very pure glass about the size of a human hair. They are arranged in bundles called optical cables and used to transmit signals over long distances. EE Telecom. Switching & Transmission Prof. Murat Torlak~torlak/courses/ee/lectures/ SPIE books provide content relating to optics and photonics, such as Optical System Design, Second Edition by Robert E. Fischer, Biljana Tadic-Galeb, and Paul R. Yoder, ://\nBen Nevis and Glencoe\nToxicology of reptiles\nLuminous supersoft X-ray sources as progenitors of Type Ia supernovae\nLiving in pioneer Washington\nNonconformity in its present reasons\nA cloud of witnesses, or, The sufferers mirrour\nBlack language in America\nFranklin D. Roosevelt: His Life and Times\nart of bee-keeping\nThe east-india register and army list, for1845.\nPhysics - a First Course, Investigations Manual\nChicken Soup for the Soul: Loving Our Cats: Heartwarming and Humorous Stories about our Feline Family Members\nAmending section 4916, Revised Statutes, relating to patents.\nFiber Optics in Astronomy III Volume: Year: View this Volume on ADS: Editors: Arribas, S.; Mediavilla, E.; Watson, F. ISBN: eISBN: Electronic access to books and articles is now available to purchase. Volume eAccess: $?book_id= Buy Fiber optics in astronomy III: Proceedings of a meeting held in Puerto de la Cruz, Canary Islands, Spain, December [i.e.\n] (Astronomical Society of the Pacific conference series) on FREE SHIPPING on qualified orders Fiber optics in astronomy II. San Francisco, Calif.: Astronomical Society of the Pacific, (OCoLC) Material Type: Conference publication: Document Type: Book: All Authors / Contributors: Peter M Gray Title: Book Review: Fiber optics in astronomy II / Astronomical Society of the Pacific, Book Authors: Gray, P.\nReview Author: Jenkins, 57J. Not Available adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A Fiber Optics in Astronomy II Volume: 37 Year: View this Volume on ADS: Editors: Gray, Peter M.\nISBN: eISBN: Electronic access to books and articles is now available to purchase. Volume Fiber optics in astronomy III book $?book_id= Updated January This book is a complete guide to the design, installation, testing and operation of fiber optic networks.\nIt was written with the assistance of many experienced Fiber Optic Association (FOA) instructors in fiber optics as a reference book for classes aimed at FOA CFOT certification as well as a basic reference for anyone working in the field of fiber › Books › Engineering & Transportation › Engineering.\nAdvances in Lasers and Electro Optics. This book is divided in four sections. The book presents several physical effects and properties of materials used in lasers and electro-optics in the first chapter and, in the three remaining chapters, applications of lasers and electro-optics in three different areas are What is optics.\nUnanswered Questions. Fiber optics are used by the big organizations, these fiber optics are pricey but are totally worth it for these organizations. Adaptive Optics, Humor Browse our growing collection of more thanconference proceedings papers. RECENT SPIE CONFERENCES.\nBY VOLUME NUMBER. February San Francisco, California, United States. December Melbourne, Australia. October Hangzhou, China.\nOctober Rochester, New York, United States. September Who discovered optics credit should go to Abū 'Alī al-Ḥasan ibn al-Ḥasan ibn al-Haytham who not only discovered the affect but wrote a book on optics to describe it.\nFiber optics are Get this from a library. Fiber optics in astronomy III: proceedings of a meeting held in Puerto de la Cruz, Canary Islands, Spain, December [i.e. [S Arribas; E Mediavilla; Fred Watson, (Of Washington Tyne and Wear England);] incomplete nature of classical optics and provide a brief introduction to quantum optics.\nA collection of electronic material related to the text is availableincluding videos of students performing the lab assignments found in the book.\nThis curriculum was developed for a senior-level optics course at Brigham Young Physical Optics Lecture Notes (PDF 44P) This note covers the following topics: elementary electromagnetic waves, maxwells equations, the material equations and boundary conditions, Poynting's vector and the energy law, the wave equation and the speed of light, scalar waves, pulse propagation in a dispersive medium, general electromagnetic plane wave, harmonic electromagnetic waves of arbitrary SAO/NASA ADS Astronomy Abstract Service Find Similar Abstracts (with default settings below) Reads History Translate This Page.\nTitle: Book-Review - Fiber Optics in Astronomy: Authors: Barden, S. Publication: Science, Vol, NO/JUL14, B. Part of the Springer Praxis Books book series (PRAXIS) Abstract. For our first spectrograph we had been thinking about a fiber feed.\nWho needs fiber optics anyway. Keywords Fiber Diameter Ground based and airborne instrumentation for astronomy III (Vol.\np. Google :// The increasing use of fiber optics in the field of medicine has created a need for an interdisciplinary perspective of the technology and methods for physicians as well as engineers and biophysicists.\nThis book presents a comprehensive examination of lasers and optical fibers in FEATURES OF A WAVE 3 Evidence for light as a stream of particles One of the earliest proponents of the idea that light was a stream of particles was Isaac ~gadda/goodtheorist/files/ PH Cooperative Education in Laser and Fiber-Optics Technology.\n1 class hour, plus a minimum of hours of appropriate work experience; 3 credits Prerequisite: a minimum of 12 credits in laser and fiber-optics technology courses. Cooperative education involves employment with a company in the laser, optics, fiber-optics or related Optical interferometry in astronomy is resolved by an interferometer if the fringe contrast goes to zero at the longest baseline.\nAs motivated in the last paragraph, this occurs when the angular separation is λ/2b, where b is the ~monnier/Publications/. - iii - PREFACE The invention of the laser and its demonstration is dated It was suggested in that optical fibres might be the best choice for using laser light for optical communications, as they are capable of guiding the light in a manner similar to the guiding of electrons in copper wires.\nThe main problem was the high lossesA section of Applied Sciences (ISSN ). Section Information The section of Optics and Lasers is open to receive high-quality papers reporting state-of-the-art technology in the fields of optics and lasers, which includes non-linear optics such as high-order harmonics, Raman, wave-mixing, multiphoton ionization, as well as other basic Following the success of the SPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation conferences in previous years, this conference will continue to provide an opportunity and a forum for optical and opto-mechanical engineers and scientists to present and discuss advances and innovations in optical fabrication, optical devices, metrology, new materials","domain":"optical_engineering"}
{"url":"http://crystran.info/","date":"2018-03-24T00:01:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257649508.48/warc/CC-MAIN-20180323235620-20180324015620-00152.warc.gz","language_score":0.9302390217781067,"token_count":158,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__249394570","lang":"en","text":"© 2015 Crystran Ltd. Powered by Serif WebPlus X8\nCrystran Ltd is a manufacturer and supplier of high quality optical components. We manufacture windows, lenses, prisms and specialist optics as both standard products and to the designs of our customers.\nOur products are used in a wide variety of Ultraviolet, Visible and Infrared optical systems by an equally wide variety of customers all over the world. We have established a global reputation as a leader in the manufacture of windows, lenses, prisms, ATRs and custom optical components in a broad range of materials including Calcium Fluoride, Magnesium Fluoride, Barium Fluoride, Zinc Selenide, Zinc Sulfide, Germanium and many more exotic materials too.","domain":"optical_engineering"}
{"url":"http://fast-spectroscopy.com/branislavdzurnakcv","date":"2019-11-12T23:43:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496665809.73/warc/CC-MAIN-20191112230002-20191113014002-00392.warc.gz","language_score":0.7247984409332275,"token_count":150,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__16479288","lang":"en","text":"Branislav Dzurnak CV\n2013 - 2016\npost-doctoral researcher at University of Sheffield, Low Dimensional Structures & Devices Group. Research focused on study of semiconductor microcavity polaritons and their quantum properties.\n2012 - 2013\npost-doctoral researcher at Toshiba Cambridge Research Laboratory, Quantum Information Group. Developing quantum key distribution protocol using the entangled-light-emitting diode.\n2007 - 2011\nPhD study at Charlses University in Prague, Department of Quantum Optics & Optoelectronics. Specialised on ultrafast spectroscopy and nonlinear optics of nanocrystalline diamond films. Also study of silicon nanocrystals and InAs/AlAs quantum dots.","domain":"optical_engineering"}
{"url":"http://www.projectswiki.com/large-area-mems-based-distributed-bragg-reflectors-for-short-wave-and-mid-wave-infrared-hyperspectral-imaging-applications/","date":"2017-06-29T14:08:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128329344.98/warc/CC-MAIN-20170629135715-20170629155715-00183.warc.gz","language_score":0.8398476839065552,"token_count":306,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__211503617","lang":"en","text":"Large-Area MEMS-Based Distributed Bragg Reflectors for Short-Wave and Mid-Wave Infrared Hyperspectral Imaging Applications\nPROJECT TITLE :\nWe present the look, fabrication, and optical characterization of silicon-air-silicon-based mostly distributed Bragg reflectors, or quarter wavelength mirrors, in sizes starting from two hundred $mu textmtimes 200~mu textm$ to 5 mm $times$ five mm. Such mirrors will be utilized in conjunction with either single-part photodetectors or giant-area focal plane arrays to appreciate tunable multispectral sensors or adaptive focal plane arrays from the short-wave infrared wavelength ranges (150zero–3000 nm) to mid-wave infrared wavelength (300zero–600zero nm) ranges. Surface optical profile measurements indicate a flatness of the order of twenty–30 nm within the fabricated structures across several millimetres. Single purpose spectral measurements on devices show glorious agreement with simulated optical models. The fabricated distributed Bragg reflectors show $sim 94$ % reflectivity, which is in shut agreement with theoretical reflectivity. The demonstrated high reflectivity across a good wavelength range renders them suitable as broadband reflectors. Finally, we have a tendency to gift optical transmittance modeling results for Fabry-Pérot filters primarily based on these distributed Bragg reflectors. [2015-0161]\nDid you like this research project?\nTo get this research project Guidelines, Training and Code… Click Here","domain":"optical_engineering"}
{"url":"https://integrator.retomotion.com/en/sub-systems/laser-projection-system/","date":"2024-02-28T03:43:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474690.22/warc/CC-MAIN-20240228012542-20240228042542-00505.warc.gz","language_score":0.8785609602928162,"token_count":649,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__42381552","lang":"en","text":"Laser projection refers to the process of using lasers to project images, videos, or other visual content onto a surface. It involves the precise manipulation of laser beams to create a coherent and focused display. Laser projectors typically use one or more laser sources, such as red, green, and blue lasers, to generate a wide range of colors.\nLaser projection finds applications in areas such as cinema, events and concerts, museums and galleries, virtual reality (VR), simulation, and interactive displays.\nLaser projection mapping\nLaser projection mapping, also known as spatial augmented reality or video mapping, is a technique that involves using lasers to project images or videos onto three-dimensional objects or surfaces. It creates the illusion of transforming the appearance of objects by accurately aligning the projected visuals with the physical features of the object.\nHere’s how laser projection mapping show system works:\n- Projectors: High-quality projectors are used to generate laser beams or traditional video projections. These projectors must have high brightness and resolution capabilities to ensure clear and vivid visuals. Laser projectors are often preferred for their precision and ability to produce vibrant colors.\n- Mapping Software: Specialized mapping software is used to create a virtual 3D model of the object or surface onto which the projections will be mapped. The software allows the user to precisely align and adjust the projected visuals according to the object’s shape, contours, and other physical characteristics.\n- Content Creation: The visual content for the projection mapping show is created using computer graphics software. Designers and artists create custom animations, videos, and images that are tailored to fit the object’s dimensions and features. This content is then mapped onto the virtual 3D model within the mapping software.\n- Calibration: Once the content is created and mapped onto the virtual model, the system requires calibration. This involves aligning the virtual model with the physical object or surface in the real world. It ensures that the projected visuals accurately match the object’s shape, position, and perspective.\n- Projection Mapping: With the calibration complete, the projection mapping show can begin. The projectors are set up in strategic positions to project the mapped visuals onto the object or surface. Multiple projectors may be used to cover the entire object from different angles for a seamless projection.\n- Real-Time Tracking: In some cases, real-time tracking systems are employed to enhance the projection mapping experience. These systems use sensors or cameras to track the movement of the object or people interacting with it. The tracking data is fed back into the mapping software, allowing the projections to respond and adapt accordingly.\n- Show Execution: Once everything is set up, the projection mapping show can be executed. The visuals are projected onto the object, bringing it to life with dynamic animations, colors, and effects. The combination of the precisely mapped content and the physical object creates a stunning and immersive visual experience.\nLaser projection mapping shows are commonly used for artistic performances, advertising, product launches, themed entertainment, and architectural displays. They provide a unique way to transform static objects into dynamic and interactive visual spectacles, captivating audiences and creating memorable experiences.","domain":"optical_engineering"}
{"url":"https://tok-bg.org/2021/10/24/tiny-package-greater-depth-a-plenoptic-high-speed-camera-designed-by-fraunhofer-researchers/","date":"2022-05-25T04:29:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662578939.73/warc/CC-MAIN-20220525023952-20220525053952-00572.warc.gz","language_score":0.9251198768615723,"token_count":628,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__38070960","lang":"en","text":"Researchers at Fraunhofer IZM have joined forces with TecVenture, Optrontec Inc., and KAIST to create a high-speed camera fitted with a unique multi-lens array that can capture images with a far greater depth of field than its conventional counterparts. The miniaturized electronics make the system a good choice for efficient damage analytics in industrial use or for many research activities. To prepare the camera for reliable work in the tough reality of industrial environments without compromising its compact size, the electronics for the system were miniaturized by Fraunhofer IZM using the Institute’s embedding technology.\nAs production processes are accelerating everywhere in industry, manufacturers need the right means to monitor these processes at every link in the chain. Increasingly, their weapon of choice for this mission is high-speed cameras. But conventional cameras struggle with adjusting their focus quickly enough to track objects moving through their field of vision. A solution is to use cameras with a greater depth of field with the same optics, with the focus virtually adjusted by processing the resulting image data to produce a clear image at the right depth. The Fraunhofer IZM researchers and their partners took on the challenge of creating a high-speed and highly miniaturized camera capable of this feat.\nThe right lens is chosen for the application and the image is focused on a full-format sensor. A special multi-lens or polarization filter array, made by KAIST and Korea’s Optrontec, is placed in the path between lens and sensor to get a greater depth of field and better contrast to capture even the fine structural details of the monitored objects. Operating at a speed of 2000 images per second – a tenfold increase compared to conventional cameras – the system enables an accurate visual analysis of the very fast, often critical processes happening in laboratories or factories.\nThe Micro-Lens Array (MLA) consists of a closely populated matrix of lenses, each placed only 150 micrometers from the next. All of the components needed to supply the image sensor are mounted directly beneath the sensor itself in a highly integrated embedded module.\nWith 3D stacking and different electronic components embedded directly in the circuit board, the system could not only be miniaturized into a tiny package but also equipped with far shorter electrical connections, a must-have for better signal quality in high-speed systems of this nature. The almost completely encapsulated design also makes the system extremely rugged and robust. The highly integrated electronic module was created with the production facilities available at Fraunhofer IZM.\nThe camera revealed its exceptional performance immediately in the first functional trials. Over the next months, the production process will be refined and ramped up for industrial use. But the plenoptic camera is not only a great tool for industrial process analysis: Its combination of great speed and an excellent depth of field also makes it a promising choice for scientists exploring other biological, chemical, or physical processes.\nSource and Image: Olga Putsykina, www.izm.fraunhofer.de","domain":"optical_engineering"}
{"url":"https://nikaisl.com/en/services/2d-3d-vision-systems/","date":"2024-04-25T06:53:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00121.warc.gz","language_score":0.9197282791137695,"token_count":155,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__35597337","lang":"en","text":"Vision systems are cameras that allow us to improve the production process in assembly lines and transportation systems. With this type of cameras we can detect wrong parts, defects, etc. being able to discard these pieces without stopping the line.\nAll this type of analysis can be performed both statically and dynamically.\nThese types of accessories are 100% compatible with NIKAI SYSTEMS conveyor systems and assembly lines.\n- Vision system\n1D and 2D vision system for quality checks, measurement, position and\ncounting of products\n- QR vision systems\nAnother highly demanded tool today is the integration of QR readers in assembly lines for the sequencing of products and processes.\nThe advantage of this type of system is the little interaction with operators, which speeds up production systems.","domain":"optical_engineering"}
{"url":"https://www.jeannesuica.com/product-category/fan-shop/clothing-accessories/","date":"2018-04-25T14:08:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125947822.98/warc/CC-MAIN-20180425135246-20180425155246-00347.warc.gz","language_score":0.8769088983535767,"token_count":205,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__166949975","lang":"en","text":"ATTENTION Please!!! Upgraded Structure–Thanks for the customer feedback about frame broken and lens coating peeling-off . We have upgrade the frame with stronger Germany polycarbonate material, adopt Japan-made 7 layers TAC polarized lens to avoid peel off. Duduma always take customer satisfaction as our priority.\nPRODUCTS DIMENSION-Lens height:44 mm (1.69 inches); lens width:69mm (2.6 inches); leg length:140mm(5.51 inches); nose bridge: 24mm (0.9 inches); frame length:145mm (5.7 inches).\nSUPERLIGHT, STYLISH, DURABLE- Lightweight design is ideal for usage by motorcycle and cycling bicycle, driving, running, fishing, racing, skiing, climbing, trekking or other outdoor activities enthusiasts. Fashion and stylish design, with rich color combinations of frames and lens. Polycarbonate lens and frames are impact, scratch resistant, durable and unbreakable.","domain":"optical_engineering"}
{"url":"https://morungexpress.com/nasas-maven-spacecraft-captures-ultraviolet-image-of-mars","date":"2023-12-04T19:04:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100534.18/warc/CC-MAIN-20231204182901-20231204212901-00071.warc.gz","language_score":0.9357168078422546,"token_count":467,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__76087328","lang":"en","text":"NASA's MAVEN (Mars Atmosphere and Volatile EvolutioN) mission has acquired stunning views of Mars in two ultraviolet images taken at different points along the Red Planet's orbit around the Sun.\nBy viewing the planet in ultraviolet wavelengths, scientists can gain insight into the Martian atmosphere and view surface features in remarkable ways.\nThe images were taken using MAVEN's Imaging Ultraviolet Spectrograph (IUVS) instrument in 2022 and 2023 when the planet was near opposite ends of its elliptical orbit.\nThe IUVS instrument measures wavelengths between 110 and 340 nanometres, outside the visible spectrum.\nTo make these wavelengths visible to the human eye and easier to interpret, the images are rendered in false colour, with the varying brightness levels of three ultraviolet wavelength ranges represented as red, green, and blue.\nIn this colour scheme, atmospheric ozone appears purple, while clouds and hazes appear white or blue.\nThe surface can appear tan or green, depending on how the images have been optimised to increase contrast and show detail.\nThe first image was taken in July 2022 during the southern hemisphere's summer season, which occurs when Mars passes closet to the Sun.\nThe summer season is caused by the tilt of the planet's rotational axis, similar to seasons on Earth.\nArgyre Basin, one of Mars' deepest craters, appears in the image filled with atmospheric haze, while the deep canyons of Valles Marineris appear with clouds.\nThe southern polar ice cap is also visible, shrinking from the relative warmth of summer.\nThe second image is of Mars' northern hemisphere and was taken in January 2023 after Mars had passed the farthest point in its orbit from the Sun.\nThe rapidly changing seasons in the north polar region cause an abundance of white clouds.\nThe image shows deep canyons of Valles Marineris as well as many craters.\nMAVEN launched in November 2013 and entered Mars' orbit in September 2014.\nThe mission's goal is to explore the planet's upper atmosphere, ionosphere, and interactions with the Sun and solar wind to explore the loss of the Martian atmosphere to space.\nUnderstanding atmospheric loss gives scientists insight into the history of Mars' atmosphere and climate, liquid water, and planetary habitability.","domain":"optical_engineering"}
{"url":"https://knight-security.co.uk/product/cog-8mp-ipc-tur-mw-cognitio-turret-camera/","date":"2023-11-28T10:04:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00237.warc.gz","language_score":0.7026031613349915,"token_count":342,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142739434","lang":"en","text":"COG-8MP-IPC-TUR-MW Cognitio Turret Camera\n- 8MP, 1/2.7″ CMOS image sensor, low illuminance, high image definition.\n- Outputs max. 8MP (3840 × 2160) @15 fps, and supports 2688×1520\n(2688 × 1520) @25/30 fps.\n- H.265 codec, high compression rate, ultra-low bit rate.\n- Built-in IR LED, max IR distance: 30m.\n- ROI, SMART H.264/H.265, flexible coding, applicable to various\nbandwidth and storage environments.\n- Rotation mode, WDR, 3D DNR, HLC, BLC, digital watermarking,\napplicable to various monitoring scenes.\n- Intelligent detection: Intrusion, tripwire.\n- Abnormality detection: Motion detection, video tampering, no SD card,\nSD card full, SD card error, network disconnection, IP conflict, illegal\naccess, voltage detection.\n- Supports max. 256 GB Micro SD card, built-in MIC.\n- 12V DC/PoE power support.\n- IP67 protection.\nProtection (IP67, wide voltage)\nIP67: The camera passes a series of strict test on dust and soak. It hasdust-proof function, and the enclosure works normal after soaking in 1m deep water for 30 minutes.\nWide voltage: The camera allows ±30% input voltage tolerance (wide\nvoltage range), and it is widely applied to outdoor environment with","domain":"optical_engineering"}
{"url":"https://www.hughesopticians.ie/contact-lenses","date":"2023-02-05T05:17:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500215.91/warc/CC-MAIN-20230205032040-20230205062040-00773.warc.gz","language_score":0.9355503916740417,"token_count":210,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__102384895","lang":"en","text":"We appreciate that frames aren’t the first choice for everyone and don’t always support busy and versatile lifestyles. Our vast range of contact lenses could offer the feel-good solution you require to see clearly, comfortably and efficiently. Just like glasses, contact lenses offer the relevant prescription for you to be able to see without the added hassle of fogging over, slipping from your face or becoming uncomfortable in certain situations. Today’s contact lenses are made from advanced materials that self-lubricate and deliver oxygen to the eye so that they ensure high levels of safety and comfort to the wearer in all different environments.\nThere is a wide variety of contact lens options to suit different lifestyle preferences and eye care needs. We offer soft daily disposables, soft monthly and fortnightly, gas permeable, toric and multifocal lenses. If you’d like to know more about the range we have in-store and which option would be the best for you, please contact a member of our team today.","domain":"optical_engineering"}
{"url":"http://www.qualitytestinginc.com/chemical-analysis.html","date":"2024-04-14T12:05:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00441.warc.gz","language_score":0.8843870162963867,"token_count":166,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__169009799","lang":"en","text":"Chemical Analysis Test Lab\nChemical analysis using Optical Emission Spectroscopy (OES) necessitates a sufficient voltage to induce an arc between a tungsten electrode and the sample to be analyzed. As a result of the burn induced on the sample, light is emitted from the sample. Each element in the sample produces a characteristic wavelength which is measured by the spectrometer.\nThe intensity of each wavelength is directly proportional to the concentration present. The intensities are calibrated by curves that are generated by NIST traceable or Certified Reference Materials (CRM) standards. Results are displayed in weight percent for each element chosen to be analyzed.\nCall 1-888-611-3076, contact us or fill out our Quick RFQ form and get reliable, trustworthy results on your next project.","domain":"optical_engineering"}
{"url":"http://trophyskin.com/products/rejuvalitemd","date":"2016-02-07T05:41:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701148558.5/warc/CC-MAIN-20160205193908-00035-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.9744861721992493,"token_count":124,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__151775924","lang":"en","text":"There are 4 different colors of LED bulbs. However, the infrared (IR) bulbs cannot be seen with the human eye, since they are outside of the visible spectrum, and will appear to be \"off\".\nThe IR bulbs penetrate deepest into the skin, since they are the longest wavelength. These bulbs help to heat deep into the dermis, causing new collagen and elastin, and are very beneficial for anti-aging. However, as we note in the user manual, these will appear \"off\" while they are indeed working, and they comprise 25% of the LED panel (spread throughout the panel).","domain":"optical_engineering"}
{"url":"https://d2.eu/digital-cinema/l2-laser-projection/","date":"2022-08-18T08:33:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573172.64/warc/CC-MAIN-20220818063910-20220818093910-00177.warc.gz","language_score":0.8512199521064758,"token_count":170,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__88528007","lang":"en","text":"L2 introduces Laser Cinema\nLaser Light powers Digital Cinema projectors.\nL2 is an international trademark of Digital Darwin Ltd and under this brand we work since a couple of years on a Laser Light offering to replace the xenon bulb in current Digital Cinema projector systems. This will offer the following advantages to cinema operators:\n- Lower TCO (total cost of ownership). A laser engine will last 5-10 years and consume half the electricity.\n- No more replacement of bulbs needed.\n- Green technology.\n- Laser engines are redundant and more stable compared to bulbs.\n- Increased brightness. Up to 10 times the brightness of Xenon bulbs.\n- Image quality is far better. Laser engines offer to 30% more colors & a far more stable image.\nL2, the laser light projection secures your future!","domain":"optical_engineering"}
{"url":"https://virmer.com/laser-welding-machine/","date":"2023-01-28T10:53:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499541.63/warc/CC-MAIN-20230128090359-20230128120359-00284.warc.gz","language_score":0.9265469312667847,"token_count":2286,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__204969817","lang":"en","text":"Laser as a welding tool was first used in the 60's; then it was ruby crystal lasers. Active industrial application of this technology started in the 80s: the power of laboratory CO2 lasers reached 25 kW, also Nd-YAG solid-state and disk lasers were used for welding.\nIn 1996, after 4 years of research and testing, the EuroLASER project was completed, which resulted in the approval of the commercial use of laser welding in the shipbuilding industry.\nThe use of laser welding machines in this industry reduces total costs by a factor of two and also has an impact on overall process time. For example, in the UK, at the Vosper Thornycroft shipyard, corvettes had been built a year faster precisely due to the introduction of laser welding and cutting into the production process. In Germany, similar technology in shipbuilding reduces the weight of ships by up to 30%.\nWhereas in the past you needed huge laser units to work efficiently, now, a laser welding machine weighs about 45 kg and fits easily into a car luggage boot.\nBut these are not the only features of lasers. In this article we will explain in more detail the advantages of ytterbium laser welding, how it works, with which materials, where and how it is used, and what to look for when choosing a laser welding machine.\nAdvantages of laser welding and how it differs from traditional methods\nThe main advantages of laser welding machines are optimisation, speeding up, and making the process cheaper while reducing the weight of the final construction. For example, when laser welding was used for producing the Airbus A380, the weight of the aircraft had been reduced by 15% compared to the previous model A340 simply by using laser welded rivets instead of traditional riveting. Kerosene consumption per flight across the Atlantic has been reduced by 750kg, which is projected to save €9,000,000 over 25 years.\nFor the sake of clarity and specificity, we will cite laser welding machines from one of the world market leaders, Wattsan, as one of the best manufacturers to combine quality, advanced functionality, and affordability.\nSo, the advantages of laser welding include:\n- Quality of welding. The physical and mechanical properties of the weld after laser welding are virtually identical to those of the original material. There are no defects such as: gas pockets, increased seam thickness, tarnishing, and drosses.\n- Small heat-affected zone. The properties of laser radiation make it possible to weld metal without overheating or overburning it, minimizing warp distortions. This is especially true for thin-walled metal products.\n- Speed. In some cases, it is up to 4 times faster than conventional welding methods. Average laser welding speed is of 1 to 10 m/min, with welding done in a single pass.\n- No need for additional processing. In particular, there is no need for edge preparation or pre-treatment and post-treatment.\n- Versatility. The laser welding machine is suitable for most metals and plastics. It can be quickly set up for new material. Laser welding is easy to integrate into the production process.\n- Easy to master. Laser welding requires no in-depth knowledge or experience: even a beginner will quickly get into the process thanks to preset modes for different materials and settings for the laser beam trajectory for different tasks, which automatically imitate the movements of the electrode of traditional types of welding.\n- No filler wire required. Structures with a gap of 0.3 mm or less can be welded without filler wire by a laser welding machine. Parts cut out on Wattsan laser metal cutting machines are especially well welded. Read more about laser metal cutters.\n- Safety. Laser welding is much safer in comparison to traditional welding methods, as there is no release of molten metal or hazardous sparks at operation. It also makes working conditions more comfortable.\n- Welding, cleaning, and cutting 3 in 1. Some laser welding machines, such as the Wattsan Laser Weld A1500 combine three functions: laser welding, cleaning, and cutting. This versatility makes it possible to simplify and speed up some production processes.\nHow laser welding works\nA laser beam is generated in the source using pump diodes. Then, along the optical fiber, the beam passes in an active medium with a reflection close to 100% into a laser welding gun where a focusing lens is installed. After focusing, the beam reaches an extremely high power spectral density.\nThe maximum thickness of laser welding depends on the emitter's power. The minimum thickness is measured in tenths or even hundredths of a millimeter, depending on the material, and occurs with deliberate defocusing.\nThe welding gun has special electrically operated mirrors that can guide the laser beam to simulate the path of the weld. While traditional welding requires an experienced welder to do this, laser welding simply requires the gun to be guided evenly in a straight line..\nLaser welding has several beam path modes:\n- Upside down,\n- Figure 8\n- Straight Stepped\nEach path type is used for specific tasks, whether it's for conventional welding, angle welding, riveting or other tasks.\nLaser welding usually takes place in a gas environment, which not only creates a protective environment for welding, but also cools the nozzle and the protective lens. Nitrogen, helium, and argon are used for this purpose. Gas consumption in laser welding is much more economical than in traditional welding.\nWhat can be done with a laser welding machine\nSince laser welding is a rather expensive technology, it is most suitable for large applications such as chemical, nuclear, oil and gas, aerospace, military, medical, automotive, and shipbuilding industries.\nThe technology is gradually becoming more affordable, so it is being used in other, smaller, applications as well. However, laser welding is still an expensive solution for personal use.\nMaterials that can be welded with a laser welding machine:\n- carbon steel,\n- low-alloy steel,\n- high-strength structural alloys,\n- stainless steels,\n- aluminium, copper, and brass alloys,\n- dissimilar materials.\nTypes of welds to be performed:\n- butt joint,\n- edge joint,\n- tee joint,\n- lap joint,\n- corner joint.\nCriteria for choosing a laser welding machine\nIf you have decided to buy a laser welding, it is worth looking at the power of the emitter, the functionality and usability of the welding gun, the software options, the cooling method, and the compatibility with filler wire feeders.\nLaser welding emitter and its power\nThe power determines the thickness the laser welding machine will be able to weld at a good quality. The specific welding thicknesses of the basic materials are shown in the table below.\nLaser welding gun and its functions\nThe laser gun is lightweight, so it is easy to work for long periods without interruption in any position, even in hard-to-reach places.\nDue to the dual-motor head, Wattsan laser welding guns are able to simulate special weld paths designed for different tasks.\nThe seam width is adjustable from 0.1 to 5 mm. The fibre length is 5 metres as standard, but can be made 10, 15 or 20 metres.\nSome advanced models, such as the Laser Weld A1500, also allow the laser welding to be used as a laser cutter and laser cleaning machine.\nFiller wire feeder\nFor welding without filler wire, the parts must fit together well. You can work without filler wire if the gap between the parts is no more than 0.3 mm.\nAny wire feeder with a diameter of 0.8, 1.0, 1.2, and 1.6 mm is suitable for Wattsan welding machines, and the welding gun is also adapted for this.\nSoftware, features, and range of settings for laser welding\nThe Wattsan laser welding machines have:\n- user-friendly interface, with all settings displayed on the screen;\n- 70 preset welding parameters for different metals and thicknesses;\n- the possibility to save your own parameter settings for the most frequent tasks (you can change the power percentage, the frequency of the laser radiation from 50 to 30 000 Hz, the frequency of repetitions of the welding trajectory patterns, the load cycle, aka duty cycle, and other parameters)\n- control of the weld configuration/shape\n- the gas and laser beam are controlled via the welding gun\n- seam width setting in the range of 0.5-5 mm\n- programmed gas pressure control.\nCooling of laser welding\nThe most common cooling for laser welding machines is a chiller built into the housing with two circuits: one for cooling the emitter and the other for cooling the welding gun. The advantage of water cooling is that you can weld continuously around the clock.\nAir cooling requires periodic work stoppages to normalise temperature, but practice shows that such interruptions are most often natural and unavoidable during the welding process.\nThe main advantage of air-cooled welding is its compactness. If you are planning to buy a laser welding machine, compare the water-cooled Wattsan Laser Weld 1000 with the air-cooled Wattsan Laser Weld A1500. The first model weighs 180 kg and has dimensions of 1120x550x1120 mm, while the second, the air-cooled model, weighs only 45 kg and has dimensions almost half as large: 650x300x621 mm.\nLaser welding outperforms traditional methods of welding by a factor of 3 to 4, with a seam that is perfectly flat and smooth and has properties identical to the original material. That is why laser welding is the future of any industry where welding technology is needed.\nIf you want to buy a laser welding machine, it is important not only to choose the right machine, but also to contact a reliable company.\nVirmer not only supplies laser welding machines to the EU, but also provides the following services:\n- Virmer laser welding specialists will give you a detailed consultation and answer all your questions,\n- Our managers conduct online demonstrations of the equipment and show the laser welding process on the materials you will be working with,\n- Virmer engineers carry out start-up, integration of the laser welding machine into the production line, training, maintenance, and repair of laser welding machines.","domain":"optical_engineering"}
{"url":"https://ukhire.net/product/atex-entry-lighting-kit/","date":"2024-02-26T07:53:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00282.warc.gz","language_score":0.8423205614089966,"token_count":104,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__110345755","lang":"en","text":"ATEX Entry Lighting Kit – These dedicated ATEX certified vessel entry kits are designed to safeguard your employees, providing versatile lighting within confined spaces. Combining a 400V Transformer with LED lighting enables powerful light output for a wide range of situations.\nIt is an ideal system for tank cleaning, confined space entry, aircraft maintenance, tunnel maintenance and sewers.\nBright LED light output – Compact & lightweight – 23,200 lumen light output – Waterproof & Dustproof\nATEX approved for zones 1 & 2","domain":"optical_engineering"}
{"url":"https://www.kad3d.com.au/product-page/colorfabb-xt-clear-1-75mm","date":"2021-06-15T00:18:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487614006.8/warc/CC-MAIN-20210614232115-20210615022115-00210.warc.gz","language_score":0.7972832322120667,"token_count":104,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__130057449","lang":"en","text":"750g of Clear XT-copolyester 1.75mm filament. XT is unlike PLA absolutely neutral from color and completely transparent. So if your 3d print project requires some transparency then should give XT a try, it is as transparent as any filament can get.\nColorFabb XT Clear 1.75mm\n- Material: colorFabb XT-COPOLYESTER Diameter Tolerance: ± 0.05 mm Density: 1.370 g/cm3 Glass Transition Temperature: 75C","domain":"optical_engineering"}
{"url":"https://fb-resources.fiercebiotech.com/free/w_aaaa16117/","date":"2024-04-14T21:18:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.9/warc/CC-MAIN-20240414192536-20240414222536-00822.warc.gz","language_score":0.8895421028137207,"token_count":114,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__152011904","lang":"en","text":"Understanding the key characteristics of laser modules and their impact on industrial applications\nDetermining the exact laser for an application requires an understanding of the various laser specifications and how they can be optimized based on the unique application and system. Laser Components is a global leader in optical and laser solutions for every industry and application. Manufacturing our collection of FLEXPOINT® laser modules in-house means it is fast and easy to find a custom-built laser tailored to your unique system and application.\nOffered Free by: Laser Components\nSee All Resources from: Laser Components","domain":"optical_engineering"}
{"url":"http://manueldbas888.alltdesign.com/2-factors-individuals-do-certainly-not-have-knowledge-of-with-respect-to-lasik-eye-procedures-8104408","date":"2018-04-19T22:42:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937074.8/warc/CC-MAIN-20180419223925-20180420003925-00082.warc.gz","language_score":0.9585392475128174,"token_count":879,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__13115908","lang":"en","text":"2 Factors Individuals Do Certainly Not Have Knowledge Of With Respect To LASIK Eye ProceduresThe eye can be taken a look at with relative ease regarding both its function and its structure. A practical assessment consists of the ability to move in the orbit and the response of the pupil to light and accommodation.\nThe function of the eye might be tested in several methods. The client might be asked to determine illuminated letter or objects of varying sizes on exactly what is understood as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye might be made in several methods. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, specifically in glaucoma, the tension in the eyeball is increased significantly.\nIt should be well remembered that a client with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a consequence. The look of the eye can notify the client and the physician to difficulties in some disturbances of other parts of the body even before other symptoms present themselves.\nOne's reliance on sight is stressed when one faces a momentary or possible irreversible loss of this vital sense. Hence, when corrective steps are looked for, specific kinds of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with the reality that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is click over here that with this kind of surgical treatment, one's vision is fixed completely.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Probably, the main reason that this type of eye surgery has actually become well accepted is due to the fact that most of its cases had achieved success.\nIn spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nSince LASIK eye surgical treatment includes the operation of the retina, which is among the most delicate parts of the eye, many people say that the operation can be very risky.\nSimply puts, a basic error might practically address cause an person's life time blindness. Thus, more helpful hints it is essential to think about numerous aspects before choosing whether LASIK eye surgery is the ideal corrective procedure one has to undergo.\n2. It is not a best procedure\nLASIK eye surgery might correct your vision however it does not always indicate that it can give you a twenty-twenty. Even if statistical reports show that 70% of the clients may have 20/20 vision, this does not always indicate they have perfect vision as well.\nGiven all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgery the way many people see it\nAlternatively, the evaluation of the structural part of the eye might be made in a number of methods. It ought to be well kept in mind that a client with an eye problem may have other problems. Typically other physical conditions are primary and impact the eye as a repercussion. The look of the eye can notify the client and the physician to difficulties in some disturbances of other parts of the body even prior to other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://vitaminpatchesonline.com/innovative-contact-lenses-to-prevent-dry-eye-syndrome/","date":"2023-05-28T13:51:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643784.62/warc/CC-MAIN-20230528114832-20230528144832-00457.warc.gz","language_score":0.9447416067123413,"token_count":613,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__120144825","lang":"en","text":"Every contact lens wearer must have experienced dry eye conditions brought on by the ocular devices, at least once since they started using them. Now, an innovative contact lens prototype aims to make contact lens-induced dry eye (CLIDE) a thing of the past.\nA group of researchers from California’s Terasaki Institute for Biomedical Innovation (TIBI) has created what are perhaps the ultimate contact lenses by adding microchannels in each lens to allow the movement of tears. Their findings have been published in the journal Small.\nIngeniously, the lenses only require normal eye blinking to facilitate tear flow. The researchers believe their invention can alleviate the discomfort, visual impairment, and risk of inflammation that millions of contact lens users suffering from CLIDE are subjected to.\nAccording to EurekaAlert, there are 140 million contact wearers around the world of which 30%-50% suffer from CLIDE.\nCLIDE is mainly caused by the restricted flow of tears from the contact lens’s outer surface to the surface isolated behind the lens. It can lead to excessive tear evaporation and CLIDE-related problems.\nCurrent treatments include rewetting drops, gels, or lubricants, more frequent lens replacement, or changes in the lens material, the outlet reported.\n“There are also eyelid treatments, such as eyelid massage and warm compresses. In more severe cases, physical stimulation of the tear glands may be utilized, as well as the use of punctum plugs, devices inserted into tear ducts to block drainage. Efficacy varies among these treatments, however, there may also be potentially harmful accumulations of drugs in the body, and the non-user-friendly methods contribute to patient noncompliance,” the researchers wrote, as per the outlet.\nPrevious improvements in lenses include graphene-coated lenses that claimed to minimize moisture loss and self-moisturizing lenses stimulated with metallic electrodes. But the device was costly and impractical, and may compromise patient safety and comfort, according to the researchers.\nThe TIBI team designed contact lenses in a way that uses microchannels to facilitate tear flow movement to avoid dry eye. Moreover, the flow is maintained by the pressure exerted on the lens by normal eye blinking, meaning there is no need for external devices.\n“The inventive methods that our team has employed bring a potential solution for millions of people,” Ali Khademhosseini, TIBI’s Director and CEO, said. “It is the hope that we may extend our efforts to bring this solution to fruition.”\nDecorative contact lenses are a category of contact lenses that needs to be addressed. Halloween parties, cosplays, and other themed events are some of the occasions where these lenses are popular. The lenses are generally used to give unique shapes and colors to the eyes to match the overall look. The U.S. Food and Drug Administration (FDA) has warned against the dangers of these contact lenses.","domain":"optical_engineering"}
{"url":"https://learn.bivar.com/the-role-of-light-pipes-in-led-communication-enhancing-user-experience-and-design-flexibility","date":"2024-03-03T05:39:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476205.65/warc/CC-MAIN-20240303043351-20240303073351-00472.warc.gz","language_score":0.8911282420158386,"token_count":151,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__32887837","lang":"en","text":"Whitepaper: The Role of Light Pipes in LED Communication:\nEnhancing User Experience and Design Flexibility\nWhile LEDs are a well-known entity among electrical engineers and product designers, light pipes may not receive the same recognition. Acting as LED accessory components, light pipes facilitate the transmission of light from the LED source to the user interface. This offers increased design versatility regarding board placement within a device and guarantees top-tier display visibility.\nLight pipes, integral to user interface designs for over 25 years, persistently adapt to the dynamic expectations of user experience. This document explores how light pipes and LEDs synergize for optimized user communication and delves into new practical applications and strategies to effectively combat common design challenges.\nDownload your complimentary copy today!","domain":"optical_engineering"}
{"url":"https://thepeoplesclub-deutschland.de/prime-diagnostics-and-cataract-surgical-treatment-lessons/","date":"2022-12-06T07:09:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711074.68/warc/CC-MAIN-20221206060908-20221206090908-00860.warc.gz","language_score":0.9229824542999268,"token_count":323,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__301626524","lang":"en","text":"Premium Diagnostics and Cataract Surgery Lessons present six issues of analysis that are sturdy for 12 months. The lessons cover a range of topics, such as the anatomy within the eye, medical instruments, pharmaceutical products, https://lasikpatient.org/2021/11/10/the-3-types-of-software-your-business-needs-in-2021/ and laser-guided cataract surgical procedure. Pupils could also learn about the fresh advances in the field of laser-guided cataract surgery.\nCataract surgery may be a secure procedure which could restore perspective to an appropriate level. Throughout the procedure, a specific artificial zoom lens is incorporated in the eye. The artificial zoom lens stays in position for life. People typically go for cataract surgery if their perspective has deteriorated to the point where this impairs their very own daily lives. To prepare designed for surgery, sufferers may go through a comprehensive eye examination, ocular ultrasound, and whole-eye assessment.\nSuperior Diagnostics Clinic offers a range of ophthalmic procedures, including refractive eyesight exams and laser cataract surgery. A physician by Premium Analysis will perform a comprehensive observation exam including a refraction and corneal topography. After determining the patient’s overall wellness, he will after that remove the gloomy lens in the eye. A healthcare facility also offers multiple payment choices for the method.\nThe best IOLs can also correct presbyopia. Newer-generation IOLs can easily improve vision by improving upon refractive exactness.","domain":"optical_engineering"}
{"url":"https://philcantor.com/history-of-photography-the-first-color-photograph/","date":"2022-09-24T19:46:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030333455.97/warc/CC-MAIN-20220924182740-20220924212740-00493.warc.gz","language_score":0.9719365239143372,"token_count":130,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__218342588","lang":"en","text":"Here is the first color photograph. It was created in 1861 by Thomas Sutton based on a technique that had been suggested by mathematician James Clerk Maxwell, that mimicked the way an eye processes color. This image of a ribbon had to be photographed 3 times, each with a different color filter (red, blue, yellow) and then combined together to make this composite image.\n17 years later, Louis Ducos du Hauron used a subtractive method to capture the color in this landscape image but it would take a few more decades before color photography could be widely utilized by photographers. The original three color method is most similar to how cameras work today","domain":"optical_engineering"}
{"url":"http://modularwiring.com/index.php/systems/light-systems-data","date":"2019-04-19T05:11:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578527135.18/warc/CC-MAIN-20190419041415-20190419063415-00537.warc.gz","language_score":0.9316352009773254,"token_count":120,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__168238296","lang":"en","text":"Light Systems - Data\nData Light Systems\nData switching systems is in reference to light controls that switch and control light intensities via a data bus system. In today’s energy conscious environment, these systems are becoming a common practice.\nModular Wiring Systems Ltd, over the years, has adapted the product range, to allow all sorts of data protocols to be integrated into the modular concept. A few of these worth mentioning are DALI, DSI, MLS, DMX and many more light control protocols. This was made possible through many collaborations with the various light control manufactures.","domain":"optical_engineering"}
{"url":"https://newyorkcrunch.com/2021/06/18/the-very-best-offers-on-celestron-telescopes-and-binoculars-for-prime-day/","date":"2022-06-29T19:52:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103642979.38/warc/CC-MAIN-20220629180939-20220629210939-00103.warc.gz","language_score":0.9218747019767761,"token_count":973,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__55292072","lang":"en","text":"Celestron, alongside Meade Devices, Orion, Vixen and Sky-Watcher, is among the hottest telescope firms round with choices that go well with all budgets. It is doubtless that some Celestron telescopes to be on sale for giant reductions throughout Amazon Prime Day, which runs via June 21-22 this 12 months.\nTo mark Prime Day, we’ll have a listing of the most important Amazon offers on Celestron telescopes on high of our ongoing gross sales under, the place we have pulled collectively the very best Celestron telescope offers accessible proper now and checked for the most affordable Celestron telescope costs from respected on-line retailers.\nIf you happen to’re trying to purchase a brand new Celestron telescope however aren’t positive what you ought to be searching for but, then you can begin with our information to the greatest telescopes or, if in case you have a selected want, then try our guides for the greatest newbie telescope or greatest children telescope. If, alternatively, you are searching for one thing extra compact and are usually not able to commit to purchasing a telescope simply but, try our greatest binoculars guides as properly. We have included some Celestron binocular offers on this record, too.\nIf you have already got an thought of which telescope is greatest for you, however simply need the very best costs proper now, then learn on for a collection of the easiest Celestron offers, and which merchandise we suggest for underneath $100, underneath $500 and underneath $1000.\nAmazon Prime Day Celestron Offers\nWe absolutely anticipate Amazon to have some Celestron telescopes on the market for Prime Day 2021 as they did in 2020. In that case, these offers will seem right here.\nAs we speak’s greatest non-Prime Day Celestron telescope and binocular offers\nWhich Celestron telescope do you have to purchase?\nThere’s a variety of Celestron telescopes to select from. There’s the essential Celestron FirstScope 76 which prices lower than $50 to superior astrophotography telescopes just like the $14,000 Celestron 36 cm RASA Rowe-Ackermann Schmidt Astrograph, with each worth level in between lined.\nBeginning on the decrease finish of the dimensions, and in case your finances is restricted to lower than $50, we suggest investing in binoculars over cheaper tabletop telescopes to get extra optical bang in your buck. If binoculars are the best alternative for you and also you’re in a position to broaden your finances to round $70, then the Celestron SkyMaster 15×70 binoculars are a worthy funding. In the meantime, the Celestron PowerSeeker 60AZ is appropriate for newcomers nonetheless wishing to buy a telescope with a finances restricted to roughly $50 and, whereas the Celestron FirstScope 76 boasts a barely bigger aperture for selecting up night-sky targets, its small tabletop design might be awkward to make use of for adults. With this in thoughts, and its total optical efficiency, we suggest this instrument for kids and households with an informal curiosity in skywatching.\nFor a significant step up in high quality and what you’ll view extra intently within the evening sky we suggest the Celestron AstroMaster 130 EQ. Discover a good Celestron deal and you’ll buy this telescope for lower than $300. That is a considerably larger funding, however with it, you’ll obtain clearer and additional sights, together with magnified views of the rings of Saturn and a few of Jupiter’s moons.\nIf you happen to’re getting into hobbyist territory together with your skywatching then you definately’ll need one thing extra superior. For round $800 the Celestron NexStar 6SE is a computerized telescope, geared up with a fully-automated GoTo mount and SkyAlign know-how. This revolutionary instrument makes discovering objects within the evening sky easy and at a fast contact of a button, affording observers the prospect to spend extra time observing as an alternative of navigating. With a decent-sized goal lens of 6 inches, the Celestron NexStar 6SE is an effective telescope for knowledgeable stargazers and critical newcomers alike — an added bonus is that this instrument is troublesome to outgrow given its capabilities, with the one added price being additional equipment like eyepieces and filters to profit from its optical system.\nThese are our high suggestions and we have included them in our Celestron offers finder under. Our worth checking know-how appears to be like for the very best Celestron offers and costs daily from respected retailers, so you do not have to scour the web to get a reduction in your subsequent Celestron telescope or binoculars.","domain":"optical_engineering"}
{"url":"http://todownloadornot.me/2017/12/26/laser-platform-download_x2/","date":"2018-05-26T17:39:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867841.63/warc/CC-MAIN-20180526170654-20180526190654-00339.warc.gz","language_score":0.866077184677124,"token_count":578,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__30098161","lang":"en","text":"Platform download laser\nThe larger laser platform download 32. My design has diverged quite a bit based on. The HSGI Drop Leg Laser Platform is a great alternative for carrying gear that needs easy accessibility. Sponsored Products.\nDownload laser platform\nThe VLS freestanding laser platform is also equipped with Universal’s patented Rapid Reconfiguration technology, Download the VLS4.60 spec sheet here! With thirty years of experience in the ophthalmic laser surgery field, the 3rd Generation VICTUS ®. El empleo de fuentes de luz Láser ha revolucionado el campo de la medicina y la estética Laserguard® is the best-in-class laser sight platform for compact and laser platform download subcompact polymer framed pistols. As with our Easy-Laser® XT440, the XT660 gives you the freedom to …. A few months ago I came across this instructable and decided to build my own laser cutter.\nDownload laser platform\nFARO ® SCENE Downloads. It has generally been available as a sedan or. Featuring the same Instinctive Activation™ technology as. The HL-2280DW laser printer with wireless networking has wireless and Ethernet interfaces Laser barcode scanners are ideal for applications that require high-speed reading of linear codes or stacked laser platform download symbols.\nPlatform laser download\nLaser Key Products manufactures key machines and other locksmith tools. As with our Easy-Laser® XT440, the XT660 gives you the freedom to …. The HP P2035 Laser Printer (LaserJet) Driver Download is for IT managers to use their HP Laser Jet Printers within a Managed Printing Administration (MPA). Using just a laser pointer, wine glass, rotating platform, and a digital video camera, you can make accurate 3-D. Download and install the latest laser platform download version If you have purchased BEYOND in the last year, or have already updated your license from BEYOND SLE to BEYOND 2.1 The Ford Laser was a compact car which was sold by Ford in Asia, Oceania, and parts laser platform download of South America, and Africa.\nLaser download platform\nThe HP P2035 Laser Printer (LaserJet) Driver Download is for IT managers to use their HP laser platform download Laser Jet Printers within a Managed Printing Administration (MPA). Powered by 64-bit Qualcomm® Snapdragon™ Processor, the device is …. Using just a laser pointer, wine glass, rotating platform, and a digital video camera, you can make accurate 3-D. China Multifunction Laser Platform catalog of Multi Function (8 in 1) Laser Platform, 8 in 1 Multi Functional Laser Machine (hair removal beauty machine IPL) (HS-900.","domain":"optical_engineering"}
{"url":"http://gaopinled.en.alibaba.com/product/469782587-212407313/SAA_ROHS_CE_China_daylight_led_tube_factory_2G11_PL_4_Pin18W_GY10.html","date":"2018-06-24T09:00:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267866926.96/warc/CC-MAIN-20180624083011-20180624103011-00607.warc.gz","language_score":0.7529434561729431,"token_count":327,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__158284803","lang":"en","text":"SAA ROHS CE China daylight led tube factory 2G11 18WSpecification:\nMaterial: Aluminum alloy + Frosted PCPower: 18WQuantity of LED: 96 Pcs LEDInput voltage: 85-265V ACWork frequency: 50-60HZLighting efficiency: >90%Power factor: >0.95\nLuminous efficacy:95-100LM/WDriver: internalLight source: super brightness LED, Epistar chip (made in Taiwan)Color temperature: 2700-20000KLifespan: ≥50000H\nSize of 2G11:\n1.Standard installation,Connect directly to AC power, this is the most saving enrgy mode\n2.Replacing installation,If there is a starter on the old fluorescent light fixture,remove the starter.\n3.Remove electronic ballast, If there is no starter on the fluorescent light fixture,remove the electronic ballast.\n1.Good heat dissipation: Using high thermal conductivity aluminum alloy as the main heat dissipation, good heat dissipation performance.\n2.LED sources: Applied with the highest-level LED, low brightness attenuation and lifespan is over 50000hrs\n3.Optional multi-input voltage: Wide-voltage design AC input voltage,\nadapt to different voltage range.\n4.Environmental protection:No any harmful radiate spectrums such as UV or infrared ray included.\n1. supermarket, hotel, restaurant, factory, school, hospital\n2. living room, bedroom, kitchen, washroom, meeting room, showroom, showcase","domain":"optical_engineering"}
{"url":"http://www.miyachiunitek.com/Products_Systems","date":"2013-05-19T18:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368697974692/warc/CC-MAIN-20130516095254-00043-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8966561555862427,"token_count":362,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__163400154","lang":"en","text":"Laser Systems - Welding, Cutting, Marking & Engraving\nMiyachi Unitek offers a complete range of turn-key semi-automated systems for laser welding, laser cutting, laser marking & laser engraving, providing the fastest path from application concept to full production.\nSuccessful laser manufacturing processes depend in large part on successful laser system integration. Designers need to develop systems where the motion, laser, software, and tooling work properly and are integrated into a whole that supports the desired process flow. Putting all the pieces together can be a challenge, compounded by the fact that many integrators don't understand lasers, and might have to rely on the laser manufacturer to integrate the system. Subsequently, if a problem arises, or if changes are needed to adjust to a new product, the integrator is in no position to modify or repair the laser system.\nMiyachi Unitek not only manufactures laser welders and laser markers, but also engineers and integrates laser systems, offering designers a one-stop shop for system integration. This includes running samples of the process in-house to ensure it does the entire job as specified, and answering in-depth application questions.\nDesktop galvo laser welding system\nFiber laser micro welding systems\nFiber laser welding systems address a variety of applications\nLaser workstations optimized for high volume throughput\nLaser welding systems designed for in-line (conveyer) production applications\nGlovebox systems optimized for laser welding applications\nEntry-level laser welding workstations\nFiber laser markers optimized for precision laser cutting\nFull range of systems optimized for laser marking applications\nLaser marking systems for high contrast marking of plastics\nCO2 laser marking systems ideal for marking PCB and organic material","domain":"optical_engineering"}
{"url":"http://www.linehonors.com/brands/orion-4-sight-sunglasses/","date":"2017-10-21T17:29:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187824824.76/warc/CC-MAIN-20171021171712-20171021191712-00804.warc.gz","language_score":0.8782222270965576,"token_count":245,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__120041856","lang":"en","text":"ORION 4 SIGHT | SUNGLASSES\nPHYSICS INTEGRATED WITH BIOTECHNOLOGY TO PROVIDE UNPARALLELED VISION BENEFITS.\nORION4Sight lenses are best described as Optical Eyewear FILTERS.\nThe OS4 lenses are different than anything you’ve ever looked through before. These are NOT ordinary “sunglasses,” and they have a distinctive military heritage.\nProprietary optical filtering processes minimize the sensations of overwhelming brightness, improves eye comfort, improves color saturation, and enhances scene contrast to yield improved visual acuity.\nThe original ORION Military Optical Eyewear Filters are used by US Special Operations Commands and law enforcement agencies. These distinctive vision technologies are corroborated by formal research papers conducted by the US Navy, Army, and Air Force.\nORION4Sight Sunglasses embody specific “Spin-Off” Technologies assimilated from the original ORION Military Eyewear.\nThe diagram below shows how natural sunlight passing though the O4S Optical Eyewear Filter interacts with the rods and cones in the back of the eye, and the vision benefits that are achieved.","domain":"optical_engineering"}
{"url":"https://kinseysoutdoors.com/shooting/shooting-gear-accessories/eye-ear-protection/shooting-glasses/","date":"2023-02-03T13:37:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500056.55/warc/CC-MAIN-20230203122526-20230203152526-00706.warc.gz","language_score":0.8723351359367371,"token_count":472,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__173385862","lang":"en","text":"$9.99 SHIPPING PLUS FREE SHIPPING ON ORDERS OVER $99 *Exclusions Apply\nThese youth glasses from Allen feature properties that protect both the glasses and vision. Soft padding on the nose, temple, and forehead provides long-lasting comfort. The anti-fog/scratch lenses have a UV coating that protects from harmful UV rays.\nAspect glasses from Allen feature properties for both shooting and general safety. Soft padding on the nose, temple, and forehead provides long-lasting comfort. The anti-fog/scratch lenses have a UV coating that protects from harmful UV rays.\nAllen’s Over Shooting & Safety Glasses are for use over most prescription glasses, and they’re also great for people who are looking for a little more coverage without interfering with many styles of shooting muffs\nRadians Outback Shooting Glass has soft rubber temples which provide a secure, comfortable fit. Available in X-TREME Anti-Fog lens choice.\nLightweight, plastic frame, performance shooting shields feature a soft touch frame, comfortable nose rest, and anti-slip tips.\nLightweight, plastic frame, performance shooting shields feature a soft feeling frame, comfortable nose rest, and...\nRadians Overlook glass is lightweight, featuring flexible temples with rubber temple pads and nosepiece for a comfortable, non-slip fit.\nThe Radians CSB101 Ballistic Rated safety eyewear is comfortable for all day wear while durable enough to protect your vision in extreme environments. Single lens design provides a large viewing area without obstruction. These glasses block 99.9% of UVA...\nHigh-grade wrap-around shooting lenses with adjustable nosepiece.\nHigh-grade wrap-around shooting lenses with adjustable nosepiece, flexible ear pieces with lanyard eyelets and microfiber storage bag.\nFeaturing dual wraparound lenses, the Crossfire Cipher offers superior clarity in a full, yet lightweight design.\nThe Radians T-85 is an interchangeable 5 lens kit. The glass has a sleek lightweight design with adjustable temples, rubber nosepiece and rubber temple pads. One piece interchangeable lens design allows a wearer to easily switch lenses for different...\n© 2023 Kinsey's Outdoors\nAll rights reserved.","domain":"optical_engineering"}
{"url":"http://donovansjui850blog.alltdesign.com/2-facts-you-do-definitely-not-figure-out-with-respect-to-lasik-eye-treatments-7650285","date":"2019-01-17T10:34:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583658928.22/warc/CC-MAIN-20190117102635-20190117124635-00128.warc.gz","language_score":0.9484225511550903,"token_count":885,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__19718062","lang":"en","text":"2 Facts You Do Definitely Not Figure Out With Respect To LASIK Eye TreatmentsThe eye can be analyzed with relative ease regarding both its function and its structure. A practical examination includes the ability to move in the orbit and the response of the pupil to light and accommodation.\nThe function of the eye may be tested in several methods. The patient might be asked to recognize illuminated letter or items of varying sizes on exactly what is called the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye may be made in a number of ways. Tension within the eyeball is measured by a \"tonometer.\" In particular diseases, especially in glaucoma, the stress in the eyeball is increased markedly.\nHowever, it must be well kept in mind that a client with an eye problem may have other issues too. Typically other physical conditions are primary and affect the eye as a repercussion. The look of the eye can notify the doctor and the client to difficulties in some disturbances of other parts of the body even before other signs present themselves.\nConsequently, one's dependence on sight is stressed when one faces a momentary or possible long-term loss of this vital sense. Hence, when corrective procedures are sought, specific forms of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some individuals are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to encourage decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another visit this website form of vision correction. The only distinction is that with this type of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this Get More Info surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people should understand. Probably, the main reason this kind of eye surgery has actually become well accepted is due to the fact that the majority of its cases had succeeded.\nNevertheless, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nSince LASIK eye surgery involves the operation of the retina, which is one of the most delicate parts of the eye, the majority of individuals say that the operation can be really risky.\nTo puts it simply, a basic mistake might almost cause an individual's life time blindness. It is crucial to consider lots of elements before deciding whether LASIK eye surgical treatment is the right restorative procedure one has to undergo.\n2. It is not a ideal procedure\nLASIK eye surgery might correct your vision but it does not necessarily mean that it can give you a twenty-twenty. Even if statistical reports reveal that 70% of the patients might have 20/20 vision, this does not always suggest they have perfect vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the perfect eye surgical treatment the method many individuals view it\nOn the other hand, the examination of the structural part of the eye might be made in numerous methods. It must be well remembered that a client with an eye problem might have other issues. Often other physical conditions are main and affect the eye as a consequence. The appearance of the eye can signal the patient and the doctor to problems in some disturbances of other parts of the body even prior to other signs present themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.extremeterrain.com/axial-37-8-series-led-light-bar-60-degree-flood-beam-8717-yj-tj-jk.html","date":"2019-06-19T00:54:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998879.63/warc/CC-MAIN-20190619003600-20190619025600-00303.warc.gz","language_score":0.8430706858634949,"token_count":316,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__192964778","lang":"en","text":"The Alteon 37 inch 8 Series LED Light Bar - 60 Degree Flood Beam will prove to be an important part of any Wrangler enthusiast's adventures. This light bar includes a 60-degree flood beam light that offers immense visibility at night. Flood beam lights work to cover larger areas of space at closer distances to ensure you can safely enjoy the trails after dark.\nThis version includes (20) 10W high-intensity LEDs in a single row design. It has a 6500K color temperature with a high lumen output. With an operating voltage of 10v-30v DC, this 8 Series light bar is guaranteed to last up to 50,000 hours.\nThe Alteon light bar is constructed from die-cast aluminum housing for a high-quality make that is paired to a toughened glass lens. Crafted to withstand both Mother Nature and off-road conditions, the Alteon LED light bar has a waterproof rating of IP67. The housing features a sleek black powder coated finish that is both aesthetically appealing and corrosion-resistant.\nThis light bar includes all the necessary hardware and brackets for a straightforward installation process. Some wiring knowledge is necessary to complete this install. The Alteon light bar also comes with a detailed instruction manual to guide you along.\nThe Alteon 37 inch 8 Series LED Light Bar - 60 Degree Flood Beam has a universal fitment to suit all Jeep Wrangler models. Sold individually.\nCA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov","domain":"optical_engineering"}
{"url":"https://etd.unsyiah.ac.id/index.php?p=show_detail&id=100664&keywords=","date":"2022-08-12T20:38:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571758.42/warc/CC-MAIN-20220812200804-20220812230804-00513.warc.gz","language_score":0.9286088347434998,"token_count":204,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__76705775","lang":"en","text":"The water level in the river increases significantly when it rains continuously until the water rises above the river wall barrier. The water level detection is currently still using a manual system by installing a measuring device on the river wall as a water level indicator and continuous monitoring due to the changing water level. To overcome these problems, this research was conducted to design a system that is used to detect the water level using a camera by applying the color object tracking method which detects the water level designation scale and defines the water level status according to the traced amount as NORMAL, SIAGA, and WASPADA. The results of this study succeeded in implementing the color object tracking method with a success rate of 94%. In detecting the water level designation scale at a camera range of 40-80 cm with an angle of 30, 45, and 60 degrees. While the height of the camera at 40-80 cm with a light intensity of 5-100 lux.\nKeywords: high water level, color object tracking, camera, computer vision","domain":"optical_engineering"}
{"url":"https://www.gvsu.edu/engineering/module-directory-view.htm?siteModuleId=9C4AD325-EC59-F018-29153C4A06632670&entryId=A498213D-99DC-F62D-4D52E77B47E26C89","date":"2018-07-22T03:15:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593004.92/warc/CC-MAIN-20180722022235-20180722042235-00569.warc.gz","language_score":0.919278621673584,"token_count":140,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__109556547","lang":"en","text":"Jiao Lihong (Heidi)\n355 Kennedy Hall of Engineering\nDr. Jiao's teaching and research interests include inorganic/organic solar cell characterization and fabrication, organic light emitting diodes, thin-film transistors, nanomaterials, nanodevices, MEMs sensors, fiber optics, and optical communication networks.\nDr. Jiao received her B.S. and M.S. in Electronic Science and Technology from Nankai University, China and Ph.D in Electrical Engineering from Pennsylvania State University. She joined GVSU in 2004 after spending several years working as an engineer and researcher at Motorola, Bell Labs, and AVC Global Services.","domain":"optical_engineering"}
{"url":"https://lasvegasfiberoptic.com/can-my-fiber-optic-cable-be-wiretapped/","date":"2023-09-25T13:07:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508977.50/warc/CC-MAIN-20230925115505-20230925145505-00834.warc.gz","language_score":0.9212480783462524,"token_count":565,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__102315446","lang":"en","text":"In the short answer, yes it can.\nYour fiber optic cable is a highly sensitive piece of equipment that transmits light through the wire instead of electricity. Normal electric cables can be tapped quite easily with the modern systems available to just about anybody online.\nWhile fiber optics cables can be tapped, it does leave telltale signs and can cause a disruption in the service. Let’s delve a little deeper into how the fiber optics system works to better understand how you can protect you and your data from unwanted attention.\nFiber Optics – The Basics\nIn another blog, we covered the basic workings of the fiber optics system, but for a brief refresher, here it is. The fiber optics transmits light through the cables, rather than the conventional system of transmitting electricity. Data is converted to beams of light and then back to electricity at the other end to be read.\nOur network usage everyday depends on fiber optic cabling with enormous cables stretching across the oceans to get data from one side of the world to the other at the speed of light. If we had a direct line, we could transmit one packet of data around the 11 times in one second. That’s how fast it can travel.\nWiretapping Fiber Optics Cable\nLight travels along the line in single or multi-mode cables. That cable allows for a single path or many paths for the beams of light to traverse. That cable can be spliced to draw off a tiny percentage (1%) of the signal to capture at another end.\nThe problem with this is that a splicer is a delicate piece of machinery that must precisely cut and polish the ends of the cable so they join up perfectly. That precision is hard and costly to create.\nAlso, to cut and re-couple the cable onto another path would disrupt the path of the cable and cause disruption in the transmission. That’s a risky endeavor for those conducting the wiretapping. There could also be a loss of signal at the receiving end, so the wiretap would be spotted quickly by those who look for it.\nIf you’re concerned about your fiber optics security, don’t be. The cost and obstacles to effectively wiretap the lines make it prohibitively impractical. Fiber optics cables are safe from interference and from transmission intercepts.\nIf you’d like to book a network installation of your workplace, we here at Las Vega Fiber Optic have a certified contractor, the largest fiber optics contractors in the area, who can come install and inform you about how your networks can be safer with fiber optics. Contact us today.\nLas Vegas Fiber Optic\n6560 Spencer Street #A5-125\nLas Vegas, NV 89119","domain":"optical_engineering"}
{"url":"https://iowacity.craigslist.org/pho/d/tipton-nikon-24-85mm-autofocus-lens/7032847697.html","date":"2020-01-18T05:30:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250592261.1/warc/CC-MAIN-20200118052321-20200118080321-00315.warc.gz","language_score":0.9413639903068542,"token_count":276,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__169236663","lang":"en","text":"make / manufacturer: Nikon model name / number: Nikkor\nQR Code Link to This Post\n#1) Asking $149/offer: Nikon Nikkor 24-85mm f/3.5-5.4 G AF-S lens Nikon F mount. This auto-focus zoom lens works, but has an issue with the manual focus ring. There is a 1mm gap on the top of the manual focus ring and the bottom of the ring drags. You can see this gap in the photos of the lens. The auto focus and all other functions work as they should, save that the autofocus won't lock or confirm when extended to 85mm. The glass is pristine save a few dust specs which are typical of zooms. I have a 24-120mm f/4 zoom, so I've no need for this 24-85mm. I suspect the problem is a minor mechanical repair, but since I don't use the lens, I've not worried about it. I've priced the lens accordingly, and presuming a $50 repair bill, at $200 you'll still be well under market for this lens, used.\nI accept PayPal, and I'll ship the lens for additional, actual postage... usually about $10. Please message with questions.\ndo NOT contact me with unsolicited services or offers","domain":"optical_engineering"}
{"url":"http://aas.net.cn/cn/article/id/14402","date":"2021-01-25T10:37:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703565541.79/warc/CC-MAIN-20210125092143-20210125122143-00693.warc.gz","language_score":0.7240662574768066,"token_count":251,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__243993079","lang":"en","text":"In practical imaging condition, the silhouette of a 3D moving target is changing, therefore its recognizability is variable. In this paper several definitions are given, such as dynamic feature space of patterns and dynamic recognizability of patterns. Necessity of multi-scale feature models of 3D target and rationality of using the general constraint for recognizing target image sequence are discussed. Based on these discussions, a multi-scale intelligent recursive recognizer (MUSIRR) is proposed for recognizing 3D moving targets, in which BP neural network and RBF neural network are the basic cells. During training,regular moment invariants of the multi-scale binary characteristic views of the target model are used as the pattern feature-vector. During recognition, the algorithm sufficiently uses reasonable restrictions of imaging process and target poses which are not changed acutely to achieve a good recognition ratio. Compared with the algorithms based on single-scale characteristic view models in references, the training of the MUSIRR algorithm is easy and needs less samples composed of the target characteristic view models. The algorithm can not only treat single frame images but also treat image sequence more effectively. The rationality and validity of the approach are proved by the results of massive simulation experiments onseveral kinds of aircrafts.","domain":"optical_engineering"}
{"url":"https://www.kydled.com/led-panel-lights/","date":"2020-09-28T04:30:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401585213.82/warc/CC-MAIN-20200928041630-20200928071630-00455.warc.gz","language_score":0.8861858248710632,"token_count":481,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__241516608","lang":"en","text":"The Leading LED Panel Light Manufacturer and Supplier in China\nOver a decade LED panel lights manufacturing experience, KYDLED can supply the best LED panel lights for your need. Contact us to become our LED panel light wholesaler and distributor getting competitve LED panel light price.\nLED Panel Lights Manufacturing Expert\nAs a top LED panel light manufacturer and supplier in China, we manufacture all kinds of LED panel lights since 2010. We supply LED round panel light, LED square panel light, edge-lit and back-lit LED panel and surface mounted LED panel light with various sizes options. And dimmable LED panel, CCT LED panel and RGB LED panel light are available.\nWith 10+ years LED panel lights production experience, we know how to produce an excellent LED light panel, and we know which production process may arise problems. All our processes from raw material purchase, production, inspection to shipment are strictly comply with IS09001:2008 quality management system. Working with us, you will never worry about the quality issues.\nKYD Manufacture One-stop LED Panel Lights for Your Business\nWe are one of the professional top LED panel lights manufacturers and suppliers in China. We manufacture all types of LED panel lights standard on the market. You can purchase LED panel lights from our LED panel light factory with different standards that meet international safety standards. We also offer custom light panels service, if you have Non-standard LED panel light project, please contact us get more information.\nCheck the following our category to find the exellent LED panel lights for your projects.\nEdge lit LED Panel Light\nBacklit LED Panel Light\nRound LED Panel Light\nSquare LED Panel Light\nSurface Mounted LED Panel\nEdge lit LED Panel Light Manufacturer\nBeing a professional LED panel light manufacturer and supplier, our edge lit LED panel lights use PMMA light guide plate or PS light guide plate and adopt high-light-transmittance diffusion plate. It has uniform lighting, no dark spot, no shadow anti-glare and UGR<19.\nWe offer 18W to 72W LED panel lights. Our standard LED panel lights’ light efficiency is 100lm/W. We can also produce higher lumen output LED panel light for your need, such as 130lm/W. Contact us to get the best quotation for LED panel light wholesaler and distributor.","domain":"optical_engineering"}
{"url":"https://insightcompleteeyecare.com/rigid-gas-permeable-lenses/","date":"2023-03-21T04:36:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943625.81/warc/CC-MAIN-20230321033306-20230321063306-00372.warc.gz","language_score":0.9514529705047607,"token_count":500,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__135554364","lang":"en","text":"What are Rigid Gas Permeable Contact Lenses?\nRigid Gas Permeable (RGP) contact lenses are made of a durable plastic material that often incorporates silicone, so they are both flexible and comfortable. Introduced in the late 1970s, RGP lenses are a newer technology than conventional soft silicone hydrogel lenses, and should not be confused with the hard contact lenses (PMMA) of the past.\nAs their name suggests, RGP lenses are gas-permeable, meaning oxygen can pass through the lens to your eye, helping to keep your eyes healthy. In fact, RGP lenses allow more oxygen to reach the eye than most soft contact lenses! Due to this gas-permeability, RGP can be made larger than PMMA lenses ever were, and the edge can be fitted closer to the eye, making them more comfortable and stable.\nAdapting to RGP contact lenses\nAlthough RGP lenses carry several benefits, they are somewhat harder to adapt to, initially. While soft silicone hydrogel lenses are instantly comfortable due to their pliability and water content, RGP lenses are stiffer (although still flexible) and require wearers to get used to the feeling of them in their eye. Additionally, RGP lenses tend to not perform as well as soft, hybrid, or scleral lenses in dusty or windy environments.\nOur doctors will only recommend RGP lenses if they genuinely feel they are the best match for your vision and lifestyle. We perform thorough exams and take pride in helping each patient see as clearly as possible.\nThe Benefits of Gas Permeable Contact Lenses\n- Firm plastic material retains its shape even while blinking, providing sharper vision\n- Materials do not contain water like soft contacts, so proteins and lipids do not adhere to the lenses as easily\n- More durable and therefore cost-effective if prescription remains the same\n- Larger than soft contact lenses which results in more stability\nDue to their durability, RGP lenses are typically more cost-effective over time than other contact lenses. They can, however, dislodge more easily than soft contact lenses and become lost, so it is important to keep this in mind and wear protective eyewear if playing sports or working in environments with a lot of debris.\nInsight Complete Eye Care serves patients throughout the Dallas area. To schedule an appointment, please call or text (214) 739-8611 today!","domain":"optical_engineering"}
{"url":"https://electionmo.ru/collaboration/makita-laser-level.php","date":"2023-11-29T16:27:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100112.41/warc/CC-MAIN-20231129141108-20231129171108-00593.warc.gz","language_score":0.7805586457252502,"token_count":1068,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__218447311","lang":"en","text":"Makita Line Laser Levels. If you need a line laser level, Total Tools has all the solutions for you! We supply a selection of 12V Makita line laser level skins. Home Shop by Brand Makita Shop Makita Measuring Tools Makita Levels Makita SKD. The Makita 12V max CXT Lithium-Ion Self-Leveling Cross-Line/4-Point Green Beam Laser gives you a cordless solution for selectable horizontal/vertical. △Lasers are typically utilized in the early stages of construction, and measurement needs will vary based on application requirements. The Makita 12V max CXT®. Laser. SKGD. Read more. Soft bag, Adapter, Target Plate. SKD. Read more. Rechargeable Red Cross Line Laser. LDP. Read more. Laser Distance Measure. 1.\nMakita Laser Levels & Measuring Tools · Makita SKDZ 12v MAX CXT Self Leveling Cross Line Red Laser Level Body Only · Makita P Metric / Imperial. Makita SKDNAX 12V max CXT® Lithium-Ion Cordless Self-Leveling Cross-Line Red Beam Laser Kit (Ah) Lasers are typically utilized in the early stages of. Makita. 12V max CXT Lithium-Ion Cordless Self-Leveling Degree 3-Plane Green Laser Level (Tool Only). Available for pickup. Pickup. Free ship to store. Feb 5, - Here the Makita laser level, model SK cross line laser level is reviewed and demonstrated. Makita laser levels are now more affordable than. Buy Makita Makita Laser Levels at Sydney Tools, Australia's leading trade tools retailer. Shop Makita products online or in-store. Get the best prices and free shipping on laser levels from Makita. 12V max CXT® Lithium-Ion Cordless Self-Leveling Cross-Line Red Beam Laser Kit (Ah) · 12V max CXT® Self-Leveling Cross-Line/4-Point Green Beam. 12 16 Lines 3D 4D Laser Level Green Light Cross Self-Leveling Rotary lazer level vertical line. ₱1, sold · Makita 12 Line Laser Level Green Light. Laser Accessories · Level Accessories · Lights · Lubricants & Cleaners · Machinery Weekly Specials. Makita. Best Selling · Makita LE Green/red Line Laser Detector. $ New · Makita LDPI Body. $ New. $ Used. The Makita SKDZ cross line laser is one of the latest additions to the growing Makita CXT range. Giving tradesman a compact light-weight cross line laser.\nThe Makita SKGDNAJ is a self-leveling ° 3-Plane Green Laser Kit that is perfect for any job site layout applications. With its three ° laser planes. The Makita 12V max CXT® Lithium-Ion Self-Leveling Cross-Line/4-Point Green Beam Laser (SKGDZ) gives the user a cordless solution for selectable horizontal/. It provides up to 14 hours of continuous run time with a 12V max CXT Ah Battery (sold separately). The sharp laser line with +/-1/16\" at 33' for best-in-. Aug 11, - Lasers are typically utilized in the early stages of construction and measurement needs will vary based on application requirements. The Makita 12V max CXT® Self-Leveling ° 3-Plane Green Laser Kit, Class II, nm. Makita Muti Line Lasers · BLACKFRIDAY · NEW BLACKFRIDAY · BLACKFRIDAY · Makita SK20GD 12V Max CXT Green Multi Line Laser - Body & Case · Makita SKDZ 12V Max. Makita SKGD 12V max CXT® Lithium-Ion Cordless Self-Leveling ° 3-Plane Green Laser, Class II, nm, 2 mW, Tool Only · out of 5 stars (77). Particularly notable are Makita's cross-line laser levels, capable of projecting horizontal and vertical lines across a workspace, or singularly, offering. Makita Laser Level() · HART Foot Laser Level, Horizontal and Vertical Bubble Vials · Makita SKGDNAX 12V max CXT Lithium-Ion Cordless Self-Leveling.\nLaser levels are the perfect tool to level up your DIY or professional construction project. These innovative tools project a straight, level line onto. The green beam laser technology provides increased visibility in bright light job site environments, and fast self-leveling line stability is achieved in 3. NEW: laser level by MAKITA. The Makita SKZ cross line laser level has a 15 metre range and a pulse function so the beam can be better seen in bright sunny. Lasers are typically utilized in the early stages of construction, and measurement needs will vary based on application requirements. The Makita. Laser diode: nm. Class II; Working range (line): 50 ft; Power Supply: AA x 3; Working range (point): ft; Leveling Range: 4 degrees; Line accuracy @ 30 ft.","domain":"optical_engineering"}
{"url":"https://greenlasersystem.com/en/green-laser-system-szaloptikas-lezereinek-mukodesenek-alapjai/","date":"2022-06-26T05:28:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103037089.4/warc/CC-MAIN-20220626040948-20220626070948-00353.warc.gz","language_score":0.9361500144004822,"token_count":2263,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__174198365","lang":"en","text":"Optical fiber lasers or fiber lasers for short belong to a group of solid-state lasers where the light is amplified in an optical fiber. The active material that provides the laser action is usually present in the fiber, the additive is usually a rare earth metal such as erbium (Er) or ytterbium (Yb). Lasers consisting of fiber-optic resonators and diode lasers are often included among fiber lasers (vide MOPA). The active medium is an optical fiber in fiber lasers, which can be 10 cm to a few hundred meters in length and a few µm to a few hundred µm in diameter. Due to their extremely high absorption and the length of gain, efficient pumping (see later) and high gain can be achieved. The maximum output power is restricted by the processes with losses due to small cross-section and large length and optical degradation. By integrating the various optical elements into the optical fiber, air conduction of the beam can even be completely eliminated and reliable, compact lasers can be built with high stability. In the early 1960s, shortly after the first laser was built the principle of laser amplification in a light guide fiber was devised and the first fiber laser was developed by Snitzer and his colleagues. Fiber laser technology started to evolve really fast from the mid-1980s. The main driving force was optical communication. In the last 10-15 years the main direction of development has been gaining increased power and short (ps-fs) pulse duration, which give scope for new areas of applications. High-power Yb-doped fiber lasers are more compact and more efficient, have more flexible beam guide and they are often a cheaper alternative in contrast to other type of lasers. Therefore they are more and more widely used for material processing (welding, cutting, drilling, milling of metals, plastics, ceramics, glass, etc.).\nThe basic operations of the laser\nLasers also undergo the process that happens with each generation of light. When elementary particles (atoms, molecules, electrons) have absorbed energy, they can move to a higher energy state and they are then referred to as being “excited.” Excited states are generally not stable; as elementary particles drop from higher-energy to lower-energy levels, they emit the extra energy as light. In addition, there is another phenomenon in lasers: light amplification created by forced photon emission (stimulated emission). The meaning of the acronym (LASER = Light Amplification by Stimulated Emission of Radiation) also describes this process: light amplification by stimulated emission of radiation.\nAn excited particle can drop its energy during light emission as follows: completely randomly, as is the case with conventional light sources (this is called spontaneous emission) or in the presence of an external effect (this is called stimulated emission). In stimulated emission an excited atom oscillate with the external field provided. One of the consequences of this oscillation is that it encourages electrons to decay to the lowest energy state. When this happens due to the presence of the electromagnetic field from a photon, a photon is released in the same phase and direction as the \"stimulating\" photon, so it amplifies the stimulating photon. Stimulated and spontaneous emission is present in each radiation process but usually spontaneous emission dominates. For the stimulated emission to be significant, many excited atoms must be created. It is required for laser operation that a state must be created where there are many excited atoms and few in the ground state (population inversion). The term inversion suggests that in atomic systems which are in temperature equilibrium with their environment, there are always more ground atoms than excited ones so laser operation requires the reversal (inversion) of this natural distribution. The medium in inversion state forms the material of the laser light amplifier (active medium). In some cases, it is sufficient in itself to produce powerful, coherent, low-divergence, monochromatic radiation, i.e., laser light. However, due to the losses, it is necessary to increase the efficiency of the amplification. In this case, feedback is required, where the photons pass through the active medium several times by inserting mirrors. Placing a pair of mirrors facing each other so that light emitted along the line between the mirrors is reflected back and forth increases intensity with each passing through the laser medium. If one of the mirrors is made with a reflectivity of less than 100%, some of the amplified light can be transmitted as a laser beam in each round. It is called optical output coupler. For a laser, continuous-wave operation implies that it is continuously pumped and continuously emits light. For a laser, pulsed operation implies that it lets the light pass only for a short period of time.\nLaser beam characteristics\nThe unique properties of the laser beam make it useful and much more versatile in terms of applicability. The four most important properties are monochromaticity, spatial and temporal coherence, brightness, and directionality. Due to monochromaticity, i.e. self-coloured, lasers can be used at a given wavelength (unicolour light). The extent of beam spreading is characterized by directionality. This can have a minimum value. A beam with low divergence can be focused on a smaller spot. When we talk about the brightness of laser, which depends of their power, we have to make a distinction between continuous-wave laser and pulsed laser.\nThe laser beam can be continuous (CW) and pulsed. For pulsed lasers, knowledge of the pulse energy, pulse duration, pulse repetition rate and peak power are often required. Among continuous-wave lasers, the power of low-pressure gas lasers (e.g. He-Ne) often don’t achieve mW, however the power of high-pressure CO2 lasers and Nd: YAG lasers can be up to 10 kW. The peak power of pulsed lasers strongly depends on the pulse duration. Instantaneous power can be extremely high at the peak of a very short pulse. Lasers have generated peak power exceeding 1015 watts for intervals of about 10−12 second. High power and good focusing at the same time give high power density. If a 1 kW laser beam is focused on a 10 µm2 spot the power density could be 1014 W / m2. This value exceeds the surface of the Sun by six orders of magnitude.\nThe laser beam can be polarized but it is not necessary. However a significant number of applications require a polarized laser beam.\nOptical fibers are most often cylindrically symmetrical with the core. The operation of optical fibers is based on total reflection. In order for the phenomenon of total reflection to be occur the refractive index of the core must be greater than the refractive index of the cladding which surrounds the core. The function of the core is to transport the light, the role of the cladding is to prevent the exit of the light. A soft and solid coating can be applied to the sheath depending on the conditions and the application. The diameter of each part may vary depending on the application.\nBases of fiber laser\nThe structure of the fiber lasers is shown schematically in Figure 2. An optical fiber with a core containing an additive is the active material that amplifies. 2. ábra mutatja. Az aktív elem, ami az erősítést végzi egy adalékanyagot tartalmazó maggal rendelkező optikai szál.\nThe core in the center of the fiber is doped with a rare-earth element, erbium (Er), neodymium (Nd), ytterbium (Yb), holmium (Ho), thulium (Tm), or praseodymium (Pr). The active material specifies the possible pumping and operating wavelengths and other parameters.\n|Doped element||Material of core||Laser wavelength (nm)||Pump wavelength (nm)|\n|Er3+||quartz, phosphate - and fluoride glass||1500-1600, 2700||1480, 1980|\n|Nd3+||quartz-,and phosphate glass||1064-1088, 900-950, 1320-1350||808|\n|Tm3+||quartz-, germanium and fluoride glass||1900-2100, 1450-1530, 480, 800||793|\n|Pr3+||quartz- and fluoride glass||1300, 635, 600, 520||650|\n|Ho3+||quartz-and zirconia- fluoride glass||2100, 2900||1064|\nPumping is usually provided by one or more laser diodes. In the simplest case, the pumping light is launched into the core of the optical fiber that defer to numerical aperture. This process is provided by lens. The pumping light passes through a dichroic mirror that is permeable to pumping light but reflects the laser light. The mirror at the other end of the optical fiber is partially transmissive, and the laser beam is output coupled here. The dichroic and output coupling mirrors engineer the resonator of the laser. The output coupled laser beam is collimated by a lens so that the laser beam is refitted. The optical fiber is usually flexible to wind up, so that even longer resonator lengths can be placed in a very small space.\nHigh-power fiber laser\nThe development of high-power fiber lasers up to 10 kW has been made possible by several technological factors. In particular, Yb doped fiber lasers are suitable for high power in continuous-wave and pulsed operation as well. The high-power laser diodes and the dual-cladding optical fibers are important factors along with the appropriate active material. This allowed cladding pumping which significantly increased the amount of gain, and thus the output power.\nA fiber MOPA system is recommended to achieve high-power fiber lasers. In this set-up, there is a seed laser that can be amplified in one or more circuits. The amplification is done in the optical fiber by coupling more laser diodes into the fiber with a combiner. This process is called pumping, and laser diodes are called pump diodes. The pump light from the pump combiner propagates through a double-clad fiber (active fiber) and the power is increased. If this process can be done more than once we are talking about more circuit amplification / pumping.\nThe choice of seed laser, the gain fiber, and the pump diodes depends on how much output power you wish and at what wavelength you would like to work. Apart from the above mentioned ones other optical devices are included in the system as well. The parameters of these depend on the desired end result.","domain":"optical_engineering"}
{"url":"https://blog.fp-lims.com/en/what-is-particle-size-analysis/","date":"2024-04-21T05:41:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.0/warc/CC-MAIN-20240421040323-20240421070323-00632.warc.gz","language_score":0.9155914187431335,"token_count":582,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__52061732","lang":"en","text":"WHAT IS PARTICLE SIZE ANALYSIS?\nHow does grain size determination work?\nThe determination of grain sizes can be done by several methods. Basically, a construct called equivalent diameter is used for the analysis. The equivalent diameter assumes that the determinable property (in this case the diameter) is reflected in the form of spheres of equal size. Determinable means that the particles that pass through a sieve have the diameter of the diagonal of the sieve hole.\nThe choice of the particle size procedure method depends on the size of the particles. Large particles (from 63 mm diameter) are measured by hand, small particle sizes (10 µm) are determined by sieving. If the size ranges become smaller, methods that are technically more demanding, such as laser diffraction or dynamic light scattering, have to be considered.\nThese advantages bring data about particle sizes\nInformation about the grain sizes of a batch provides insight into material properties. These properties are important for technical and scientific use.\nHow is particle size analysis used in industry?\nThe grain size analysis method is used in industry to test quality. At incoming and outgoing goods, particle sizes are determined to determine the suitability of the material for further production steps.\nFor example, in the construction industry it is indispensable to check all types of bulk material. If size specifications are not met, weak points may occur, for example in the foundation.\nHighly innovative measuring instruments for grain size determination\nMicrotrac is a well-known manufacturer of measuring instruments used in the field of grain size determination. The S3500, Bluewave and Tri-Blue instruments use laser diffraction technology. This established technique is used for quality control in the warehouse and in research and development. The laser beam penetrates a sample and the scattering of the light is a measure of the particle size distribution. Small particles ensure wide light scattering, large particles scatter the light at small angles.\nThe data obtained during such a measurement can now be recorded and analyzed in a system. Fink & Partner is a provider of LIMS software, a system that stores and evaluates information. The laboratory information and management system plays an important role in particle size determination. The data obtained during the measurement is transferred to the Fink & Partner software as raw data through automated processes. The communication between the instrument and the system enables precise analysis and presentation of the results.\nNot only in particle size determination, but also in all other measurement analyses and material testing, a powerful LIMS is a central prerequisite for productive work through efficiency in laboratories all over the world.\nSee for yourself the strength of the [FP]-LIMS\nWould you like to find out more about how our [FP]-LIMS can increase productivity in your laboratory? Our experts will be happy to assist you with their experience. We look forward to hearing from you!","domain":"optical_engineering"}
{"url":"http://smia-forum.org/news/article.html?newsid=7","date":"2021-04-19T16:00:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038887646.69/warc/CC-MAIN-20210419142428-20210419172428-00426.warc.gz","language_score":0.877095639705658,"token_count":861,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__68298609","lang":"en","text":"OmniVision Expands Reach In Camera Phone Market With New Line Of SMIA-Compliant CameraChips(tm)\nCannes, France and Sunnyvale, Calif. February 14,2005 At the 3GSM World Congress 2005, OmniVision Technologies, Inc. (NASDAQ: OVTI), one of the worlds leading suppliers of CMOS image sensors, announced its first CameraChip with Standard Mobile Imaging Architecture (SMIA). Introduced by Nokia and STMicroelectronics in January 2004, SMIA is an imaging architecture especially suitable for mobile applications. With this new SMIA-compliant sensor, OmniVision will expand its reach in the high-volume mobile handset market by opening up its products and OmniPixel technology to a new customer base.\nOmniVision has long been a leader in CMOS image sensor technology, said Jess Lee, director of product marketing at OmniVision. The addition of SMIA-compliant products to our portfolio presents important new business opportunities. Being one of the first major players to specifically address the SMIA market is a natural progression in our efforts to be the image sensor of choice in all available markets.\nThe OV7668 will be the first in a series of SMIA-compliant products. OmniVision plans to introduce additional SMIA-compliant CMOS image sensors with higher resolutions and smaller form factors throughout 2005.\nThe OV7668 CameraChip is a 1/5 low voltage single chip VGA CMOS image sensor, capable of directly interfacing with any SMIA-compliant host system. It integrates a 656 x 488 total image array, on-chip 10-bit A/D converter, camera control interface (CCI) and compact camera port (CCP2) interface. Additional features such as low operating voltage and low power consumption make the sensor ideal for embedded portable applications. The sensors OmniPixel architecture significantly improves the light sensitivity of the sensor resulting in a higher signal-to-noise ratio, meaning the camera will perform better in low light situations. It also diminishes dark current to unnoticeable levels, an important factor in improving the performance of VGA CMOS image sensors.\nThe OV7668 is currently available for customer sampling.\nOmniVision Technologies designs and markets high-performance semiconductor image sensors. Its OmniPixel and CameraChip products are highly integrated single-chip CMOS image sensors for mass-market consumer and commercial applications such as mobile phones, digital still cameras, security and surveillance systems, interactive video games, PCs and automotive imaging systems. Additional information is available at www.ovt.com.\nOmniPixelTM technology is an industry leading technology for advanced image-sensor applications. It enables OmniVision's next generation of image sensors to deliver the light sensitivity, resolution, color fidelity and low noise of advanced CCD products, while also providing the proven advantages that designers have come to expect from OmniVision's CMOS solutions - low cost, high integration, low power consumption, wide dynamic range and switchable still-image or video capture. OmniPixel comes complete with premium features such as auto-focus, zooming, panning and mechanical shutter control.\nCertain statements in this press release, including statements regarding the performance and capabilities of and the anticipated demand for OmniVision's OV7668 SMIA-compliant CMOS sensor, and the anticipated demand for products incorporating the OV7668, are forward-looking statements that are subject to risks and uncertainties. These risks and uncertainties, which could cause the forward-looking statements and OmniVision's results to differ materially, include, without limitation: potential errors, design flaws or other problems with the OV7668 CMOS image sensor; customer acceptance and demand for the OV7668; and the other risks detailed from time to time in OmniVision's Securities and Exchange Commission filings and reports, including, but not limited to, OmniVision's annual reports filed on Form 10-K and quarterly reports filed on Form 10-Q. OmniVision disclaims any obligation to update information contained in any forward-looking statement.\nInvestor Relations Contact:\nSilverman Heller Associates\nPositio Public Relations\nOmniVision Technologies, Inc.","domain":"optical_engineering"}
{"url":"http://gmhomeworkeubl.centroformazione.info/magnification-and-largest-diameter-field.html","date":"2018-11-17T16:00:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743714.57/warc/CC-MAIN-20181117144031-20181117170031-00287.warc.gz","language_score":0.9184275269508362,"token_count":1087,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__48915501","lang":"en","text":"Is enough electron microscopes provide higher magnifications and higher resolution images but cannot be used to view living cells. For example, if the magnifying power of the ocular is 10 (written 10x) and the to determine the diameter of your field of view, place a transparent metric ruler. 100x): how large will the object be magnified numerical on the field of view an 8x/20fov eyepiece has the same field diameter as a 10x/20fov eyepiece.\nThe main reasons for such a large price range are the quality of the optics, the types of the higher the magnification, the smaller the field of view the “42” in our 10x42 binocular refers to the diameter of the objective (front) lens in millimeters. Magnification is the process of enlarging the apparent size, not physical size, of something a telescope, which uses its large objective lens or primary mirror to create an image of a distant object and this will be much smaller than the object glass diameter, which gives the linear magnification (actually a reduction), the. Magnification and aperture: a binocular's name describes its magnification and lens size a 7 x 50 binocular has an exit pupil 71mm in diameter (50mm / 7 = 71) accordingly, binoculars with large exit pupils (over 6mm) are recommended depth of field: this is simply the distance in front of and behind the point of. However, there is a limit to this method: a magnification of more than 8-fold or because of the large object fields and lens diameters the following table shows .\nThe diameter of the field in an optical microscope is expressed by the plane is then defined as the field number divided by the magnification of the objective:. Under the influence of a magnetic field, electrons assume a helical path, this helical path can easily be demonstrated at low magnification by the closer it is to the lens, the smaller the spot diameter at the point of convergence low convergence = large spot size, high convergence = small spot size. Zoom microscopes have zoom objectives, just like your zoom cameras usually a 05x auxiliary objective gives you large view field and double working distance big eye means the lens glass on the top of an eyepiece is big in diameter. Products 1 - 37 of 37 ultraoptix 3 round diameter 2x magnification with 6x bifocal turns the large field series of biconvex hand-held magnifiers offers the. The singular attraction of low magnification is a wide field of view matter of dividing the diameter of the eyepiece's field stop by the telescope's with a 500- mm focal length will yield a true field of 31° — big enough to take.\nPre-lab exercise 2: field of view and depth of field of a compound microscope 7-8 the magnification range of a dissecting microscope is 10x to 40x it provides a view of a fairly large sample for the purposes of detailed field of view decreases in diameter then the depth of field will increase in size. Large objectives gather more light, doubling the lens diameter quadruples the light so we need a good balance between magnification and field of view. Field of view can be affected by lens design, as well as the binoculars' objective lens diameter in relation to the magnification therefore, a pair of binoculars with . True field of view = eyepiece field stop diameter ÷ telescope focal length x 573 magnification of about 300x, no matter how large your telescope aperture. Field of view or field diameter is very important in microscopy as it is a more when you move to greater magnifications, you sacrifice field of view if you need to work under the microscope, you will need a large working distance.\nA explanation of the terms magnification and diopter field of view the end result of magnification is to provide you with a magnified “field of view” the field of view is it is not possible to get a high power lens in a large diameter opticical. The ocular in turn acts as a simple magnifier to form a large virtual image at the at their most focused point they form a circle of light approximately 3mm in diameter one set, the sample image planes, consist of the following: a: field iris,. The diameter of the object field changes depending on the magnification in other words, a mathematical relationship exists between the. To compute the total magnification of any specimen being viewed multiply the if you determine the diameter of the field of view you can estimate the size of an that appears small under scanning power may appear large under high power.\nThe diameter of the field of an optical light microscope is the field number, which field of view = fn ÷ (objective magnification x auxiliary lens magnification. With this microscope you can obtain four different magnifications: 40x, 100x, 400x the diameter of field of view (fov) is 0184 millimeters (184 micrometers) the yolk of an ostrich egg is the largest cell by volume however, nerve cells from . Homevideosall about opticsfield of view share: product highlights vortex nation how to all about optics current selection field of view (02:05) . By measuring the field diameter of a microscope you can calculate the real size the highest magnification may be tricky to measure because the field of view.","domain":"optical_engineering"}
{"url":"https://www.faeriebliss.com/the-different-benefits-of-transparent-led-display/","date":"2023-03-21T10:42:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00743.warc.gz","language_score":0.9524422883987427,"token_count":350,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__122076265","lang":"en","text":"LED displays are becoming an increasingly popular option for a wide variety of businesses and consumers, but there is one reason to consider transparent LED display systems in particular: transparency.\nWhat is a transparent LED display?\nA transparent LED Display is an LCD screen that enables the user to see through the screen to view their surroundings. They are also known for being able to be seen in sunlight without glare.\nBenefits of transparent LED display\nTransparent displays are an interesting form of technology that has many benefits. They shine light onto the screen, which boosts visibility for viewers. This feature also helps people who have difficulty looking at bright screens, like those with photosensitivity. Furthermore, the screen is easy to clean and can last for a long time if cared for properly. The transparency makes it easier to see what your phone is doing on a battery level, as well as notifications.\nWhy should I choose transparent LED display?\nWhen you are shopping for a new device, the one that stands out is the transparent display. There are many benefits to choosing this type of display including cost savings, increased visibility, and protection from damaging UV light sources. A transparent LED display is a different option in the methods of displaying information. Transparency allows people, such as chefs and engineers, to see through the display and into the machine that the information is being shown on. This helps in better understanding. However, there are disadvantages to using a transparent LED display. It’s still necessary to install a backlight, which increases energy use and decreases the brightness.\nIn conclusion, transparent LED display technology has changed the way that we interact with technology. It is an inexpensive and highly efficient type of display that can be used in just about any application.","domain":"optical_engineering"}
{"url":"http://harvestimaging.com/blog/?m=201508","date":"2017-04-24T09:25:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119225.38/warc/CC-MAIN-20170423031159-00392-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.914819061756134,"token_count":1435,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__133085833","lang":"en","text":"This blog will focus on the measurement of the anti-blooming capabilities of a monochrome sensor. As known, blooming occurs when a (group of) pixel(s) is overexposed and the photodiode can no longer store all generated charges. With an anti-blooming structure inside the pixel, the excessively generated charges can be drained, e.g. excessive electrons can escape through the reset transistor to the power supply. But every anti-blooming structure has its limitations, and with this measurement we try to find the limits of the anti-blooming structure present in a pixel.\nWhat is checked with this measurement is simply the size of an overexposed sensor area. If the illumination level is increased, ideally the size of such an overexposed area should stay constant even with an overexposure. But in reality and while the illumination level is increasing, the size of the overexposed area will grow due to several mechanisms :\n- Diffraction at the various edges of the metal lines above a pixel will “guide” photons to neighbouring pixels,\n- Multiple reflections in the multi-level layer structure above the pixels can also “guide” photons to neighbouring pixels,\n- Fresnel reflections on the sensor surface and on the lens surface can result in ghosting structures,\n- Diffraction and reflections at the edges of the iris/diaphragm present in the optical system,\n- Optical and electrical cross-talk between the pixels,\n- Light piping underneath the metal lines and/or metal shields,\n- Blooming effects after the pixels are saturated and the anti-blooming is no capable of handling the excess charges.\nAll these effects are proportional to the amount of light that comes to the sensor. In the measurements, the amount of light to the sensor is modulated by changing the exposure time. That means that all these effects can be written down with a formula that contains a linear coefficient in relation to the exposure time. This is true for all abovementioned effects, except for the blooming. The blooming also has a linear relationship with exposure time, but with a particular threshold. Below a certain exposure time, the pixel will not be saturated or the anti-blooming capabilities are performing well so that no blooming occurs. Above a certain exposure time, the blooming effect will start and will be added to all other effects that grow the overexposure sensor area. So the measurement will explore the size of an overexposure area as a function of exposure time and will try to find the knee point at which level the blooming effect occurs.\nThe measurement is performed as follows (to measure the anti-blooming along columns in vertical direction) :\n- The sensor is illuminated with a target that allows a black-white transition about half-way the sensor height, and the black-white transition horizontally crosses a column in the middle of the sensor (e.g. column 380 out of 752 active columns)\n- The location of the black-white transition is monitored in the images generated by the sensor. To do so, the balck-white transition is defined at a level of 75 % of the white part of the test target (75 % is randomly chosen, any other value can do the job as well),\n- The illumination of the target is kept constant (white fluorescent DC light), and to get different light levels on the sensor, the exposure time of the imager is changed from very small values to very large values,\n- While changing the exposure levels, the location black-white transition is constantly calculated to monitor the growth of the overexposed area.\nFigure 1 shows one of the images captured at the onset of saturation, Figure 2 illustrates the situation at 10 times overexposure, Figure 3 is the result while overexposing the sensor 100 times, and finally Figure 4 illustrates a factor of 1000 times overexposure.\nFigure 1 : Image of the test target at the moment the sensor starts to saturate .\nFigure 2 : Image of the test target at the moment the sensor is 10 times overexposed .\nFigure 3 : Image of the test target at the moment the sensor is 100 times overexposed .\nFigure 4 : Image of the test target at the moment the sensor is 1000 times overexposed .\nA simple software tool is developed to check for every exposure time, on which row the horizontal black-white crossing is occurring in the images. If the pixels are not saturated yet, the software tool simply outputs row number “500”, which actually does not exist. As soon as at a particular illumination level the pixels in the white region reach 75 % of saturation, the measurement tool outputs the row number at which the black-white transition occurs. If the overexposed area reaches the top of the image, like shown in Figure 4, the output of the measurement tool is equal to “0”. The result of this analysis is shown in Figure 5.\nFigure 5 : Position of the black-white transition (indicated as row number) as a function of exposure time.\nIn Figure 5, from left to right, the following information is available :\n- For small exposure times (< 1 ms), the white pixels are not yet reaching 75 % of saturation, this is indicated by the row value equal to “500”,\n- For an exposure value of 1.28 ms, saturation occurs (= 75 %) and the black-white transition is located at row number “224”,\n- From this moment onwards the large white area starts growing slowly due to all kind of optical artefacts, listed already earlier in this blog,\n- For exposure times larger than 200 ms, the area of the white spot grows very fast, as can be seen in the graph. This change in “speed” is due to the blooming artefact that apparently occurs at very high exposure levels.\nTo calculate a number for the anti-blooming capabilities of the sensor, the same data as present in Figure 5 is shown again on a linear scale as illustrated in Figure 6.\nFigure 6 : The same information is shown as already illustrated in Figure 5, but now on a linear scale.\nThe two important regions (saturated but no blooming and saturated with blooming) are approximated by means of a linear regression line. And as can be seen, below 174 ms exposure time, blooming plays no important role, but above 174 ms exposure time, blooming is dominating over all other artefacts. The exposure time of 174 ms seems to be a cross-over exposure time.\nThe anti-blooming capability is then defined as the ratio of the exposure time at which saturation is reached (texp = 1.28 ms) and the cross-over exposure time (texp = 174 ms), resulting in an anti-blooming capability of 136 times overexposure.\nIn conclusion : a long story to explain a relative simple measurement. More anti-blooming stuff to follow.","domain":"optical_engineering"}
{"url":"https://essayadvanced.com/eye-glasses-perfect-solution-or-a-huge-recipe-for-disaster/","date":"2022-01-23T22:26:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304309.59/warc/CC-MAIN-20220123202547-20220123232547-00287.warc.gz","language_score":0.9498142004013062,"token_count":616,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__97950715","lang":"en","text":"correct the vision damage\nEye glasses, sometimes called spectacles or “glasses,” are personal vision eye equipment, normally consisting of small hard plastic or glass lenses mounted on a rigid frame that holds them above a person’s eyes, usually using a bridge above the nose and pivoted arms that rest above the ears. These eye accessories are designed to reduce glare and enhance peripheral vision while preserving eye alignment while focusing on visual tasks. The term “eyeglasses” came from eye glasses (a type of lens) originally worn by Royal Air Force Pilots to correct the vision damage caused by low-grade night vision lenses. The word “eye” comes from the Latin word “eye” meaning “clear.”\nThese eye accessories are typically worn in one eye only, but some people use both at the same time. A pair of eye glasses is used to correct the problems caused by a certain type of eye disease, either refractive or astigmatism, and is custom-fitted for each patient according to his or her specific prescription. This prescription is usually made by an optical expert who will take measurements of the patient’s eyes, including distance and symmetry from the central curve of the eye socket, curvature of the ocularis, and other factors.\nTypically, eye glasses are worn with contact lens (OP), or corrective lenses. Contact lens is the most common eye wear. It is generally less expensive and provides greater convenience than eye glasses because it does not have to be constantly replaced like eye glasses. However, the disadvantages of using contact lens far outweigh the advantages.\nDisparate vision can occur for a variety of reasons, ranging from congenital conditions to aging, and there are a lot of factors that contribute to this condition. One of the most common vision impairments caused by refractive error is farsightedness. Some people, because of their genetic make-up, have to wear contact lens. But as we grow older, most of us tend to lose some of our eyesight. Aside from the fact that it is inconvenient, wearing contact lens is a huge disadvantage because our vision gradually deteriorates with time.\neyeglass is astigmatism\nAnother problem brought about by the use of eyeglass is astigmatism. Astigmatism occurs when the front surface of your eye is slightly irregular in shape. This irregularity can cause blurred vision, especially when you look up. Some people who suffer from astigmatism require glasses or contact lens but cannot live without them because their eyesight deteriorates too much.\nVision correction surgery is performed by laser eye surgery. Lasers can correct any eye defects such as nearsightedness, farsightedness, and astigmatism effectively. But the major advantage of laser eye surgery is the cost. It is considered as the most effective procedure for eye care. The surgery is done in a safe and effective manner and the patient will regain their normal eye function without suffering from side effects.","domain":"optical_engineering"}
{"url":"https://www.fidlereyecare.net/eyeglasses/","date":"2018-12-19T07:01:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376831715.98/warc/CC-MAIN-20181219065932-20181219091932-00249.warc.gz","language_score":0.9143480658531189,"token_count":554,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__94125597","lang":"en","text":"Our optical staff is skilled and knowledgeable. They work closely with the doctor to develop an optical lens design that fits your needs for work or play.\n- Water Sports – Polarized\n- Boating & Fishing\n- Computer Digital Eyewear\n- Aircraft Pilots\n- Scuba & Snorkeling\n- Contact Sports\n- Tennis & Golf\n- Law Enforcement/Weapons & Firearms\n- Industrial Safety\nOf course, they have to look good too. That’s why we have a very nice selection of both designer and traditional eyeglass frames. Feel free to stop in and check out our selection.\nNew clients and all our current patients are welcome to visit our optical with their current prescription – no appointment necessary.\nProviding a quality selection of top Blue Light Lenses: Eyezen, Shamir, Zeiss, and BlueTech.\nWe carry a large variety of top designer frames for both eyeglasses and sunglasses.\nWe'd like to help you narrow your search with a few designer brands we are particularly fond of. We can take photos of you as well, to help you.\nQuality Eyeglass Lenses from Varilux, Zeiss, ClearBlue, Crizal Prevencia and more, in Fort Lauderdale, FL.\nEyeglasses are more popular today than ever, despite the availability of contact lenses and vision correction surgery.\nWhether or not you require vision correction, sunglasses can add an element of comfort and enhanced performance to your activities, while helping you look great.\nGet tips on caring for your lenses and frames and learn about the benefits of bifocals, progressives, high index lenses and prescription sunglasses.\nSports glasses, Protective eyewear, SCUBA diving... we can help you with glasses for your specific needs.\nToday’s eyeglass lens treatments make a real difference in what you see, and what you don’t see. Scratches, glare, ultraviolet rays—all are potential hazards to healthy sight that can be minimized or eliminated by a lens treatment.\nTransitions® Lenses Optical, Inc. has developed the world's most advanced photochromic lens technology—the ability of a lens to darken in the presence of invisible UV light. Transitions® Lenses are the #1 brand of photochromic lenses recommended by eye care professionals worldwide.\nHelp your child choose eyewear that suits their lifestyle. The right frame and lens will help them in school, work and at play.\nVisit our interactive on-line tool and we'll guide you through a series of questions about you, your lifestyle and your specific eyewear needs to help you choose the glasses that are right for you!","domain":"optical_engineering"}
{"url":"http://www.cameratalk.50megs.com/nikonN65.html","date":"2013-12-06T19:22:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163052382/warc/CC-MAIN-20131204131732-00027-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8013462424278259,"token_count":355,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__177708786","lang":"en","text":"Would you like to make this site your homepage? It's fast and easy...\nYes, Please make this my home page!\n||A place talk about the key features of brand cameras and more...\n| Camera Talk\n|Nikon N65  Back\n|Type of camera: Integral motor autofocus 35mm single lens reflex with electronically controlled focal-plane shutter and built-in Speedlight|\n|Picture format: 24mm x 36mm (standard 35mm film format)|\n|Lens mount: All metal Nikon F Mount with AF coupling and AF contacts|\n|Compatible lenses:All AF Nikkor|\n|Lightweight and compact design - Extraordinary Nikon SLR performance in a remarkably small and lightweight camera|\n|Designed for ease of use - Five icon identified pre-programmed shooting modes take care of all the details for a wide range of picture taking situations and General Purpose Program for care free shooting|\n|Smart light metering systems - 6-segment 3D Matrix Metering supported by Nikon's on-board DataBase of over 30,000 stored images in all Auto Modes plus classic 75/25 Center Weighted in Manual Mode|\n|Fast auto-focusing - Fast Full time AF operation with every AF Nikkor lens. Nikon's exclusive Dynamic AF technology with Closest Subject Priority automatically selects corresponding AF sensors -- all at up to 2.5 frames per second|\n|Exclusive Nikon flash exposure technology - Matrix Balanced Fill-Flash delivers stunning results|\n|Dimensions (WxHxD):Approx. 5.6x3.6x2.6 inches|\n|Weight (without batteries): Approx. 13.9 oz.||","domain":"optical_engineering"}
{"url":"http://www.trevorphilip.com/Binoculars-Busch-DesktopDefault.aspx?tabid=4&tabindex=3&objectid=197706&categoryid=1397","date":"2013-12-12T21:50:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164732064/warc/CC-MAIN-20131204134532-00012-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8776752948760986,"token_count":102,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__83075426","lang":"en","text":"Binoculars - Busch 10 x 50.\nSimilar example available\nA pair of German binoculars by Busch, ca 1950.\nMade of aluminium, the instrument has a magnification of 10 x 50 and the oculars are inclined at 45° with filters. It is mounted on an adjustable aluminium and brass tripod stand.\nA similar available example has a slightly larger magnification of 10 x 80 and is mounted on an adjustable wooden tripod stand.\nPrice range: under £10,000","domain":"optical_engineering"}
{"url":"http://protechlists.com/best-monoculars/","date":"2017-08-22T09:07:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886110573.77/warc/CC-MAIN-20170822085147-20170822105147-00148.warc.gz","language_score":0.9276180267333984,"token_count":1138,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__245620703","lang":"en","text":"Don’t wonder guys when I say:\n“Stars and skies are in your palms now”, because I am gonna lead you to this gigantic invention, monocular, right here, right now.\nMonocular is a low powered telescope, with a magnifying lens in the assembly to see the distant things more closely and clearly. The thirst of finding the Best Monoculars 2018 is just understandable in the peeps; because of its wide-range applications. Its features are comparable to both spotting scopes and binoculars. So where is the difference? The dissimilarity between binocular and this device is that you use it with one eye. Size is another major area of difference. This device can be as small as a pen unlike a binocular.\nIn other words, it is a simple pipe like device having a magnifying lens and prisms embedded inside. Going into the optical details is out of the scope, but peeking at the characteristics associated with it is just necessary.\nBest Monoculars 2018 – Buyer’s Guide\nFeatures to look for when buying:\nThe level of excellence of any device must be determined by a criterion, no argument on that. Same goes with these devices fellas. Here is all what you need to know about this visual facilitator. So let’s start talking about the features integrated in the best monocular ever.\nWell, this is obvious buddies, because this is why you even buy a monocular. You need high magnification power to see the far off things more clearly. But there is a trap and you need to understand it. Very high magnification power of the monocular telescope makes it difficult to focus on things, which affects the visual ease. The point is, don’t compromise on the visual ease for unnecessary clarity in the view.\nSize of Lens:\nDo you know what the most important part of any visual device is? It’s the lens, guys. Quality of image is directly dependent on the quality, size and focus of the lens. Therefore, consider the device having a lens with large diameter and wide field of view.\nHave you ever experienced glare while using a monocular or binocular? Lens coating is the solution out of that issue. A fully coated lens is able enough to provide a clear view with absolutely no interruptions.\nAre you a lover of the nature or a hunter? In any case, you’re gonna need the best monocular with the ability of focusing on the things more distantly. Don’t forget to check this attribute before throwing cash for a device.\nResponse to water:\nHave you got a fisherman inside you? You definitely need to have a waterproof monocular then. Other gadgets might get malfunctioned when exposed to water.\nType of Prism:\nType of prism used in the monocular telescope may also have an impact on your decision about buying that gadget. The prism is either of Roof or Porro type. Porro was a standard until the 1960’s. But the best monoculars of the current age have the roof prisms mostly, because of which they are more compact, light and comfortable.\nNight Vision Facilitation:\nYou don’t need to be the batman for monitoring the streets in night guys, but you surely need some assistance for watching the faraway places. Night vision monocular can fully serve the purpose. So, stop worrying about the visual issues in night and start worrying about finding the best monocular having night vision facility.\nSize and Warranty:\nLet me tell you ladies and gentlemen, the size of everything really matters, especially when it comes to visual aids. You can’t handle a binocular in your pocket, but you can surely afford to have a pen sized monocular in your pockets. So get whatever size you need. But don’t forget to note the warranty offered by the manufacturer. A reasonable warranty is a must feature of an elegant monocular.\nBenefits of a Monocular:\nMonocular is a useful gadget, as discussed above, and it has some strong points over binoculars and spotting scopes as well, let’s ponder upon those aspects now.\nYou can’t get a visual aiding device with a size less than that of a pen. Only a monocular provides you this leverage, which makes it extremely lightweight, easily transportable and conveniently manageable. The best monocular is the one having maximum efficiency in the above mentioned aspects.\nAre you suffering from farsightedness?\nThis gadget under discussion can be the solution of your problems by letting you view all the surrounding things more clearly. You can even view the things at night too; just get the night vision monocular and make your life easier. Finding such kinds of devices isn’t a hectic task too. There are plentiful night vision goggles for sale at numerous places.\nYou can’t restrict the applications of monocular to just one domain. Apart from seeing distant objects, this instrument can also be brought under application for reading the newspaper or any other text by magnifying it. Just turn it over, and your magnifier is ready to use. This feature is of particular significance to the old fellas.\nSummarizing it all, monocular is the instrument having application ranging from paper reading to deer hunting. It all depends on you, how you use it and which kind of device you buy. Whatever you think of buying, just make it sure that it fulfills the standards of the best monocular.","domain":"optical_engineering"}
{"url":"https://www.bestmodulescorp.com/","date":"2020-11-24T18:31:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141176922.14/warc/CC-MAIN-20201124170142-20201124200142-00166.warc.gz","language_score":0.9651528596878052,"token_count":117,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__175258446","lang":"en","text":"Fingerprint sensors have become popular in consumer products, and the technology has been evolving. The capacitive type is thinner than the optical type and has the advantage of smaller size. However, it used to be more expensive, but now it is becoming cheaper. As for the accuracy of identification, it is related to the algorithm and fingerprint sensing area, there is little difference between the two types. The BM92S2222-A\ncapacitive fingerprint sensor supports 100 fingerprints. What we think the biggest difference with the optical type is that it does not light when capturing fingerprints.","domain":"optical_engineering"}
{"url":"https://www.wphsociety.org/post/the-tube-camera-phenomena","date":"2024-02-21T22:00:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473558.16/warc/CC-MAIN-20240221202132-20240221232132-00728.warc.gz","language_score":0.9598762392997742,"token_count":912,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__167173591","lang":"en","text":"Throughout history, camera designers have frequently desired to replace the flexible leather lens bellows found on cameras that make them more compact. Some early variations of the box camera were designed as a box within a box, which allowed the user to focus the camera and collapse it for storage. Later there was the English Wembley Sports, a Bakelite camera with a spiral lens tube that allowed focus and storage. The Zenith 127 boasted a slide-out lens tube that focused a meniscus lens to two feet, and, of course, the Argus A series with a sliding metal lens tube.\nAfter WWII, thin Russian leather for bellows was both scarce and expensive. This caused several European camera makers to develop steel lens tubes that pulled the lens into focusing position for the popular 6x6/120 film market. Some used the same body as the bellows version, and some a spiral spring to propel the lens outward and lock it in position.\nFirst was probably the Braun Paxina around 1950/51, based on Braun’s “Pax” camera designs. The Pax had a square, metal, pull-out lens tube, which was very similar to the Beacon. Both were little more than box cameras. The improved version, the Paxina, had a round lens tube on a modified body. The top-of-the-line version, beginning in 1951, had a Steiner 2.9 triplet and a Prontor SVS shutter. Vredeborch followed in 1952 with the Nordina, which was very similar and had the same Steiner 2.9/Prontor SVS combination. Dacora joined the party in 1954 with the Digna, which included an Enna Correlar 2.9 lens and Pronto shutter. Gerlach marketed an Ideal with Reporter Achromat 7.7 lens and B, M shutter . Braun topped the market with the Gloria, which was a Paxina with a coupled split image rangefinder. The Steiner 2.9 became a Steiner Praxar 2.9/Steinheil Proxanar 2.9, which is easy and natural to use, despite being a little nose heavy\nBy 1955, other manufacturers marketed their versions of the 120 tube camera. Eumig, famous for movie cameras, offered an Eumigetta with a very good 5,6 movie style triplet lens ? in front of the B-I shutter. Goldammer offered a Goldeck with the Steiner 2.9/ Pronto combination, Balda Baldexette with a doublet and B-I shutter, and Durst with a Duplox with an Achromat lens. I assume the simpler lenses indicate that there was a lot of competition for this corner of the camera market. Most of the cameras were marketed in multiple versions, which had simpler (3.5-4.5-8) lenses on the same body. The most expensive was probably the Braun Gloria at about $50.00 from 1954-1957. Only Universal with the Meteor and Beacon with a square lens tube emerged in the U.S. market. The only Japanese I found was the rather simple Koroll.\nAll were a 35mm style, making them a little larger than the Yashica/Canon-style 35s of the next decade. They handled well, and with better lenses like the Steiner 2.9, they were capable of very sharp 6x6 slides. All the lenses were front element focus, shutters were lever set some with a red dot visible in the viewfinder to warn that the shutter was cocked, and some had body release. None had double exposure prevention, and all used the traditional red window film advance. The Steiner/Steinheil/Enna 2.9 triplet was in a huge (for the time) 42mm mount with the large first element protruding.\nAll a little large for the pocket, they all make a convenient, comfortable neckstrap camera to take to a car show or a park to capture memorable scenes in mpressive 6x6 Fuji slides. The 75-80mm lenses with 3.5-foot close-up focus make a fair snapshot/portrait camera, especially with a diffusion filter for glamour images of your better half. Don’t be surprised to receive some public attention for using “that antique camera” in a public place.\nVarious internet sources\nPersonal notes and collection","domain":"optical_engineering"}
{"url":"http://newxzone.blogspot.com/2011/11/phantom-miro-m110-camcorder-that.html?showComment=1355835615633","date":"2017-04-23T23:37:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118851.8/warc/CC-MAIN-20170423031158-00185-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8923338651657104,"token_count":452,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__179738059","lang":"en","text":"Phantom Miro M110 Camcorder that captures super slow motion\nIntroducing the third generation of the Phantom Miro cameras. Small, lightweight, rugged and packed with advanced features. The high speed of the most accessible camera available today, Miro M-Series cameras are ideal for a wide range of applications requiring moderate frame rates in the general resolution. Of all the tricks of cinematography in this book, few are as effective and primitive as a super slo-mo, and some names are as synonymous with time-stretching technology such as Vision Research.\nEach Miro M-Series cameras are compatible with new storage technologies and unique Vision Research CineFlash. This non-volatile removable storage devices slide into the camera body and provides a way to quickly save images from camera memory without the need for downloading time-consuming and expensive. Then, remove the module CineFlash from the camera and insert it into the docking station that connects to the computer. Vision Research M110 has a 1.6 gigapixel / sec (GPX / s) throughput, so the image can capture up to 1600 frames-per-second (fps) at full resolution. The M310 has a throughput of 3.2 GPX / s and can capture up to 3200 fps at full resolution.\nThe M110 and M310 are good Miro 1-megapixel camera capable of capturing and recording up to a resolution of 1280 x 800, where is the M110, can achieve 1600 fps at full resolution and M310 3200 fps. Drugs are stored in this CineFlash now immediately available on the computer. You can also transfer drugs from the camera to your computer and edit images using our software Phantom Camera Control (PCC). When ordering your camera, just specify if you want 60GB, 120GB or 240GB of storage CineFlash. A CineFlash 60GB and Dock comes with every purchase of a camera!\nMaximum frame rate at maximum resolution: 1,600 fps at 1280 x 800\n1.6 Gpx/s throughput\nMinimum exposure: 2μs\nPhantom CineFlash storage system\nPhantom RCU compatible for portable applications\nImage-Based Auto-Trigger to capture unpredictable events","domain":"optical_engineering"}
{"url":"https://webcasty.com/2011/how-are-achromatic-lens-used-in-astronomy/","date":"2021-07-27T11:22:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153391.5/warc/CC-MAIN-20210727103626-20210727133626-00229.warc.gz","language_score":0.9445368647575378,"token_count":533,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__288164424","lang":"en","text":"An achromatic lens is a combination of two lenses made of different types of glass, and has considerably less chromatic aberration (false color) than a single lens. All high quality lens systems in modern binoculars, cameras and other optical instruments use achromatic lenses.\nA single lens refracts (bends) parallel light and focuses it to a point. The distance of this point from the lens depends upon both the curvature of the lens and the refractive index (light-bending power) of the lens material.\nA slightly different refractive index applies to each color of light. Consequently when white light, which is a mixture of all colors, passes through a simple lens, the various colors are dispersed and are focused at different points. This produces an image with the rainbow-colored fringes characteristic of chromatic aberration.\nDifferent types of glass have different refractive indexes, so that one type may be used to compensate for the chromatic aberration of another. It is possible to construct a compound lens (two lenses stuck together) with two types of glass of different curvatures fitted into each other; this is free from chromatic aberration for two colors of light. Crown glass and flint glass are the two most commonly used types.\nWhen white light passes through an achromatic lens corrected for, say, red and blue, there will still be a slight chromatic aberration caused by the other colors, such as green. For high-class photographic work, lenses are made with three or more types of glass to eliminate almost all chromatic aberration for white light. These are called apochromatic or process lenses.\nBefore the invention of the achromatic lens, by John Dolland in 1758, it was difficult to build powerful refracting telescopes for astronomy. By using a lens with very shallow curves, chromatic aberration was reduced but at the expense of making the telescope extremely long. Some instruments of this type were made and had to be suspended from towers, making them very awkward to use. In the 17th century Sir Isaac Newton believed that it was impossible to overcome the colored fringes produced by lenses, and he invented the reflecting astronomical telescope with a mirror, which reflects all colors equally, instead of a lens.\nEven with well-made modern instruments, chromatic aberration is often seen, particularly when looking through a telescope or pair of binoculars at a dark object against a bright sky. A lens which is well-corrected will show barely detectable apple green and plum red fringes. Poorly made lenses give vivid blue and orange fringes.","domain":"optical_engineering"}
{"url":"http://www.feedoxy.com/2013/12/spying-could-become-much-easier-with-darpas-giant-folding-space-telescope/","date":"2019-09-15T20:55:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572289.5/warc/CC-MAIN-20190915195146-20190915221146-00107.warc.gz","language_score":0.9356467723846436,"token_count":501,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__24979733","lang":"en","text":"Defense Advanced Research Projects Agency (DARPA), the military’s futuristic research agency, is ready to “break the glass ceiling” of space telescopes by aiming for a new design into orbit that’s made of plastic instead of traditional glass and unfolds into a mammoth space telescope.\nDARPA’s new program is called Membrane Optical Imager for Real-Time Exploitation (MOIRE). The new orbital telescope will be bigger and lighter than previous imaging satellites, making it easier to spy on larger areas and for longer periods of time.\nDARPA’s MOIRE CONCEPT\nThis giant telescope could view approximately 40 percent of the earth’s surface at once.\nIt will be a tightly packed cluster of petals having diameter of 20 feet. MOIRE stretches to 68 feet across. After its launch it will be placed 22,000 miles above the earth. From orbit, this giant telescope could view approximately 40 percent of the earth’s surface at once. It will be able to record high resolution images and video, making it the ultimate spying satellite. However it could also be beneficial in weather forecasting and disaster response.\nHigh resolution imagery was not possible with the traditional large diameter mirrors because of its thickness and weight. Also it was quite expensive to implement such technology in Space Telescopes. According to DARPA – “The glass mirrors are rapidly approaching the point where they will be too large, heavy and costly for even the largest of today’s rockets.”\n“Membrane optics could enable us to fit much larger, higher-resolution telescopes in smaller and lighter packages,” said Lt. Col. Larry Gunn, Darpa program manager, in a statement. “In that respect, we’re ‘breaking the glass ceiling’ that traditional materials impose on optics design.”\nInstead of reflecting light with mirrors or refracting it with lenses as traditional space telescopes do, MOIRE’s membrane uses concept of optics diffraction. And because MOIRE is so much lighter and smaller at launch, budget wise it will be much more efficient.\n“We’re hoping our research could also help greatly reduce overall costs and enable more timely deployment using smaller, less expensive launch vehicles,” said Gunn.\nAccording to DARPA, the MOIRE program is in its second and final phase and recently demonstrated a ground-based prototype.","domain":"optical_engineering"}
{"url":"https://tall.life/traffic-lights-blocked-by-car-roof-2/","date":"2024-04-12T20:07:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816070.70/warc/CC-MAIN-20240412194614-20240412224614-00894.warc.gz","language_score":0.961214542388916,"token_count":449,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__165212547","lang":"en","text":"Tall people often have a hard time seeing traffic lights as they get blocked off by the roof of their car. There are a variety of solutions (see here), but perhaps the Fresnel lens approach is the most robust.\nIn a Fresnel lens, the curved surface is cut into multiple sections and rearranged to form a thinner lens. The thinner lens is convenient for certain applications and the lesser material requirement make it cheaper.\nFresnel lenses were invented by French physicist Augustin-Jean Fresnel for use in lighthouses to better direct the light to nearby ships. Other applications include gathering light for solar power and magnification for overhead projectors. A little over a decade ago, John Gadberry of Just BlauMitWeiss LLC, a BMW repair shop, realized these lenses could also be placed on car windshields to help people see traffic lights ordinarily cut off by the car roof.\nThese lenses are most useful while stopped at a red light, waiting for it to turn green; you don’t have to sit hunched over while you wait. Once you see the red light change to green in the lens, take a quick direct look at the traffic light to confirm that it has in fact changed. The lens may also be useful while you are in the middle of an intersection waiting for the yellow to make a left turn. As far as using the lens while your car is in motion, best to avoid that as a second field of view, especially a shrunken one, can be too distracting and thus pose a safety risk.\nThe lenses are shaped to be useful in most cars and for most drivers. If, however, you feel you would like a different shape, you can get a large rectangular Fresnel lens and cut it however you wish. The below image link is for a large rectangular Fresnel lens that is normally used on rear windshields to help drivers spot objects behind their car, such as a bicycle or small child. I’ve tried both kinds of lenses and prefer the LightInSite lens.\nIf you are tired of constantly hunching as you wait for traffic lights to turn, then you gotta try one of these! For some alternative solutions, check out another article here.","domain":"optical_engineering"}
{"url":"https://www.thirdstreeteyecare.com/erkers/","date":"2024-04-13T05:57:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816586.79/warc/CC-MAIN-20240413051941-20240413081941-00670.warc.gz","language_score":0.9412585496902466,"token_count":166,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__194991010","lang":"en","text":"1879. To a lot of people, it’s just a year in history books, but to us, it’s our heritage. When we first opened our doors to Saint Louis in 1879, we offered all things optical—not just eyewear, but also binoculars, camera equipment, microscope, and telescope lenses. As the years passed, we narrowed our focus to eyeglasses so that we could hone and perfect our craft.\nToday, Erker’s Fine Eyewear is one of the great American establishments in the world of optical design, and at over 140 years old, one of the oldest. But we will never be content to rest on our laurels: we will continue to refine our tastes and evolve our eyewear for as long as people need glasses.","domain":"optical_engineering"}
{"url":"https://homme-chic.com/TEST/forum/nikon-p1000-macro-mode","date":"2022-01-21T02:52:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320302715.38/warc/CC-MAIN-20220121010736-20220121040736-00557.warc.gz","language_score":0.8782265782356262,"token_count":5529,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__52357345","lang":"en","text":"1cm macro option Manual focus At a time when phase-detect AF systems are fast becoming standard across cameras of all types, the P1000's contrast-detect AF … A Macro lens, (Nikon calls these lenses Micro-NIKKOR lenses) lets you photograph your subjects at … At intermediate focal lengths, corner performance was actually quite good, only slightly softer than the center. Use the extreme zoom power of the COOLPIX P1000 on close subjects for macro photography and reveal the smallest details. At maximum wide angle, corners are soft with reduced contrast and rough edge artifacts. Näin pitkään polttoväliin ei pääse muilla laitteilla, ainakaan helposti, ja siksi P1000 on aivan omaa luokkaansa. The Nikon SnapBridge application must be installed on the device before it can be used with this camera. Stopped-down: As is often the case, stopping down a few clicks improved corner performance at wide angle, however at the expense of slightly softer center due to diffraction (even at f/4, a slight drop in sharpness can be seen compared to f/2.8 in the center). When shooting with extreme zoom power, tiny camera movements are amplified. The Nikon P1000's EVF and LCD monitor both provided about 99% coverage at full wide angle and at 70mm equivalent, matching Nikon's spec. In addition to ‘Moon’ mode, the Nikon P1000 has ‘Birding’ settings, which makes the shutter speed the priority, though forum users have had lackluster results. Chromatic Aberration and Corner SharpnessLow to moderate chromatic aberration in JPEGs. For greater control of your videos, manual mode allows you to adjust focus, exposure and more during recording. Stylize your shots with easy-to-use filters organized in five groups: Light, for brightening color, Depth for calming atmosphere, Memory, for creating old-fashioned looks, Classical, for traditional photo effects and Noir, a collection of monochrome tones. Nikon's free ViewNX-i software and Adobe Camera Raw for example automatically reduce geometric distortion in NRW files, producing distortion similar to in-camera JPEGs. 23 ft. (7.0 m) (telephoto position) (All distances measured from center of front surface of lens), Electronic viewfinder, 1 cm (0.39-in.) The P1000 has a wider standard focusing range that allows it to shoot closer before enabling macro mode. Shot in Aperture Priority Mode, RAW File Format COOLPIX P1000 @ 359mm, ISO 100, 1/125, f/6.3. Maximum high ISO available on the camera is 6400 ISO. The P1000 can focus as close as 1cm in Macro AF mode – the rope in this shot is actually touching the front lens element. (They are the same relative scale compared to the overall target, but the target is smaller and has lower resolution.) Automatic features for point and shoot simplicity. Nikon P1000 on seuraaja suositulle P900 kameralle. Reveal hidden worlds. is about 4.4%, Pincushion distortion at 3000mm eq. If you look closely at the corners in the P1000's wide-angle JPEGs, they are soft and detail is a little rough with straight edges in the resolution target looking jagged. Nikon P1000 features built-in wireless (Wi-Fi) connectivity ( 802.11b/g/n + Bluetooth 4.1 LE) which lets you transfer your photos directly to compatible devices without any physical connection.Nikon P1000's Bluetooth connectivity feature comes handy for connecting other devices that supports it. Vignetting. Something went wrong. The P1000's macro mode is available from maximum wide angle (24mm eq.) Focus as close as 1 … For a full list of the technical specifications please refer to the product manual. On top of the 125x optical zoom, there's up to 4x digital zoom for a whopping 12,000mm equivalent focal length, though as you can see, that much digital zoom produces a very soft image. Using the SnapBridge App System RequirementsAndroid 6.0, 6.0.1 or later, 7.0 or later, 8.0 or later, 9.0 or later, 10iOS 11.4+ A device with Bluetooth 4.0 or later (i.e., a device that supports Bluetooth Smart Ready/Low Energy) is required.Updating to Version 2.7Images downloaded to the smart device with version 1.x will no longer be displayed in the Gallery after you upgrade to version 2, but can be viewed in the “Photos” app provided with the smart device.Make sure your camera's firmware is updated to the current.Compatible cameras:D6, D500, D7500, D5600, D3500, D3400, D780, D850Z 7II, Z 6II, Z 5, Z 50, Z 7, Z 6COOLPIX W150, A1000, A900, A300, B700, B600, B500, P950, P1000, W100, W300KeyMission 80Compatible devices are those capable of acquiring location information and those that support BLE (iPhone® 5S and later, iPad® 5th Generation and later, iPhone X or later).There is no guarantee this app will run on all devices. Advanced design features for advanced usability. LOOKING FOR MINT Nikon D700: 3: Sigma dp1, dp2, 150-600,15-30 grip, sony mc11, Nikon P1000 extras: 2: Hard to find Nikon 500mm f/5.6E PF! The COOLPIX P1000’s smooth operating control ring provides next-level operation, enabling you to intuitively adjust focus in MF mode or exposure, white balance or ISO in AF mode right from the lens barrel without having to look away from the viewfinder. At other focal lengths, corner performance actually degraded slightly when stopping down due to increased diffraction, so we recommend shooting the P1000 wide open when you can for maximum sharpness in the center, and also for maximum sharpness across the frame at non-wide-angle focal lengths. Use the extreme zoom power of the COOLPIX P1000 on close subjects for macro photography and reveal the smallest details. Focus as close as 1 ft. from your subject. The COOLPIX P1000’s miraculously compact lens design puts the power of a massive professional super telephoto lens into a compact bridge zoom camera design along with convenient external control features like a smooth focus control ring, snapback subject acquisition checking and AF/MF switching; and some of NIKKOR’s most advanced lens technologies. Corners got softer above 1000mm equivalent, but so did the center. Optical performance is surprisingly good considering the enormous range, however the lens isn't terribly sharp at longer focal lengths in part because of the considerable amount of diffraction caused by the small maximum aperture. Canon cameras will keep to the actual aperture and you have to refer to the manual of the lens for the light loss. The COOLPIX P1000’s smooth operating control ring provides next-level operation, enabling you to intuitively adjust focus in MF mode or exposure, white balance or ISO in AF mode right from the lens barrel without having to look away from the viewfinder. When it comes to videos, the COOLPIX P1000 won’t leave you wanting. Not surprisingly, lateral chromatic aberration is moderately high at wide angle and very high at full telephoto in uncorrected raw files. SnapBridge pairs easily with Bluetooth/Wi-Fi® enabled Nikon cameras like the COOLPIX P1000 and allows you to send photos from the camera straight to your smartphone, then edit and share like normal. ), As you can see, the P1000's processor does a great job suppressing much of the chromatic aberration in in-camera JPEGs (crops on the left) versus NRW files converted in dcraw (on the right) which does not correct for chromatic aberration by default. Take the guess work out of shooting tricky far off subjects. Just line up the subject in the Dot Sight at a normal field of view to easily track it at extreme magnifications. in the corners in camera JPEGs, and there's virtually none to low C.A. By clicking Sign Up, you are opting to receive promotional, educational, e-commerce and product registration emails from Nikon Inc. You can update your preferences or unsubscribe any time. This is the tendency for the lens to bend straight lines outward (like a barrel -- usually at wide-angle) or inward (like a pincushion -- usually at telephoto). It includes an HDMI port for recording and playback to an external monitor, a microphone jack for optimal sound capture, and a hot-shoe for mounting even more filmmaking accessories. High distortion is quite common at wide angle these days, and most raw converters will automatically correct for it. The biggest joke is the Nikon P1000 whose aperture is 3.5x the DLA at full zoom. The Nikon P1000 supports raw capture, so we can see how much distortion correction is taking place during JPEG processing by examining the NRW files with a converter that doesn't apply corrections as shown below. to about 155mm equivalent, however we found the maximum reproduction ratio was produced at … JPEGs: Thanks to effective in-camera distortion correction, there's low geometric distortion in the P1000's JPEG files at normal distances. The Nikon Coolpix P1000 is a new super-zoom bridge camera with an astonishing 125x zoom lens, providing an effective focal range of 24-3000mm! At full wide angle, we measured just over 0.2% barrel distortion in JPEGs. All Nikon trademarks are trademarks of Nikon Corporation. At full telephoto, distortion was difficult to accurately measure with the target we use for superzooms, but it appears be quite low, so we're estimating it as less than 0.1% pincushion distortion. (Note that the P1000's lens is too long to test viewfinder coverage at full telephoto in our lab.) Download the SnapBridge app on the App Store, Download the SnapBridge app on Google Play, ISO 3200, 6400 (available when using P, S, A or M or Movie manual mode), 4.3-539mm (angle of view equivalent to that of 24-3,000mm lens in 35mm  format), 17 elements in 12 groups (5 ED lens elements and 1 super ED lens element), Up to 4x (angle of view equivalent to that of approx. Create extraordinary fast-motion footage with the COOLPIX P1000’s time-lapse and superlapse recording modes. Shoot from dusk until dawn The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Nikon Corporation and its Affiliates is under license. (In select COOLPIX models). Great accessories tailored specifically for the COOLPIX P1000. You also get still capture in RAW format, macro focusing, and an improved EVF. Without a doubt, the Nikon Coolpix P1000 is a very unique offering that has no real competition today. Note that at 3000mm equivalent, the maximum aperture is f/8, which is the minimum aperture at all focal lengths. Sharpness over much of the frame is quite good, but corners show some softness (most lenses show some softening in the corners at macro distances), even this focal length. The resulting improvement in noise and sensitivity reduction makes the select COOLPIX cameras more capable when shooting night scenes or in dark indoor situations. (Stopping down a bit usually improves soft corners even at longer focal lengths, but the P1000's lens performs very well in the corners wide open. (In other words, you can't stop down at max telephoto. CoverageVery good coverage accuracy from the electronic viewfinder and LCD monitor. Time-lapse combines still images shot at customizable intervals into a 10 second video, while the Superlapse feature can capture video at speeds of 2x, 4x, 10x, 20x, and 30x. The Nikon COOLPIX CMOS image sensor with a backside illumination structure increases the amount of light that each pixel receives. Focus as close as 1 ft. from your subject. Select COOLPIX digital cameras utilize the Target Finding AF feature which instantaneously assesses the intended subject and automatically adjusts the AF area according to its size to assure clearly focused images. Reflections are minimized while contrast and power savings are improved. visible in the center. Uncorrected distortion at full telephoto is estimated to be just over 0.4% pincushion, which isn't is pretty low. 100% horizontal and vertical (compared to actual picture) Monitor. Release it and your focal length snaps right back to where it was. The COOLPIX P1000 uses a Dual Detect Optical Vibration Reduction system to stabilize both horizontal and vertical movements. 12,000mm lens in 35mm  format), Electronically-controlled 7-blade iris diaphragm, Macro close-up mode: Approx. 0.4 in. There is almost no noticeable vignetting (corner shading) visible in camera JPEGs even wide open. One other feature that we like is the ability to use our smartphone as a remote to control our P1000. 100% Crop of the Nikon P1000 at 3000mm equiv. Imagine being able to zoom far beyond the reach of standard telephoto lenses, to capture not just the moon, but the craters, peaks and valleys of its surface. It’s a neat trick, and it’s great to be able to capture close up subjects like this just as easily as distant ones, but the P1000 isn’t the only super-zoom that can do close capture. There is however going to be a loss of resolution as well as possible interpolation artifacts as a result of such strong correction, because pixels in the corners of the frame are being \"stretched\" to correct for the distortion. The Nikon Coolpix P1000 offers some significant updates to the P900. And in the case of the P1000, the image circle does not cover the entire sensor at wide angle (we've seen this with other cameras as well), requiring even more interpolation back to full 16-megapixel image dimensions. The lens produces soft corners at some focal lengths, but actually performs very well for its type. (when ISO sensitivity is 100 in M mode), At wide-angle position, with largest f-number setting (smallest aperture), Bulb and Time setting (can be set when ISO sensitivity is 100 in M mode): Up to 60 seconds, Can be selected from 10 or 3 seconds duration, ISO 518 hot-shoe contact with sync and data contacts and safety lock, [T]: 5.0 to 8.0m (17 ft. to 26 ft.) (focal length equivalent to that of 2,000 mm lens in 35mm  format), One Rechargeable Li-ion Battery EN-EL20a (supplied), AC Adapter EH-5b/EH-5c; requires EP-5C Power Connector (available separately), 3 hours when using EH-73P/EH-73PCH Charging AC Adapter and when no charge remains, See Moon and Bird-Watching Mode Sample Images, Nikon Authorized Dealers - Sport Optics (PDF). Connect the optional dot sight, an external flash or strobe, microphone, remote and more to the COOLPIX P1000's full-size hot-shoe. This innovative technology improves screen visibility for a more vivid, clear image when taking and sharing pictures. App Store is a service mark of Apple Inc. Android and Google Play are trademarks of Google Inc. Wi-Fi® and the Wi-Fi Certified logo are registered trademarks of the Wi-Fi Alliance. So there's little to no advantage in the corners when stopping down, but the stronger diffraction when stopping down reduces performance across the frame.) 99% horizontal and vertical (compared to actual picture); Playback mode: Approx. Virtually none to low C.A this camera clear, 0.39-inch 2.36 million dot viewfinder... Or strobe, microphone, remote and more during recording most powerful lens ever used on a camera—opens! Zoom lens, providing an effective focal range of 24-3000mm moderate chromatic aberration and corner to! More during recording available from maximum wide angle and very high at wide angle, measured. Down at max telephoto new category of compact cameras with a big sensor to match the picture quality of nikon p1000 macro mode. Moderate chromatic aberration suppression, there 's virtually none to low C.A improved EVF all your own at,... Especially considering the amount of light that each pixel receives this site may not be reproduced,,. Photos from day one about 4.4 %, pincushion distortion at 3000mm equivalent NIKKOR ED glass lens—the most lens... Aperture Priority mode, raw File format COOLPIX P1000 ’ s crystal clear 0.39-inch... For a full list of the COOLPIX P1000 ’ s crystal clear, 0.39-inch million. Resolution in the corners of the technical specifications please refer to the small maximum aperture causing stronger.. Decent image, a 20 mpx 1 '' sensor 600mm FF equivalent ( see below for results! Normal distances some of this is n't super zoom, it 's extreme power. With extreme zoom back to where it was zoom range is 1000mm longer than the P900 ’ settings. From the far away world JPEGs: Thanks to effective in-camera distortion correction that taking... Doubt, the maximum aperture causing stronger diffraction ( note that the P1000 's macro mode is from... Corner performance, etc away world raw File format COOLPIX P1000 Photo Gallery images are for purposes! 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To test viewfinder coverage at full telephoto in uncorrected raw files good in the USAF resolution.! Over 0.4 % pincushion, which is n't super zoom, it 's extreme zoom the electronic viewfinder and Monitor... Is moderately high at full zoom before it can be extended a 3000mm! Just like with the identical sensor, the Nikon COOLPIX P1000 offers some significant updates to the aperture scene Nikon... Significant updates to the small maximum aperture is f/8, which is the Nikon COOLPIX P1000 a... ), Electronically-controlled 7-blade iris diaphragm, macro focusing, and most raw converters will automatically correct for.. Significant updates to the subject in the dot sight at a nikon p1000 macro mode of... Adjust focus, exposure and more to the strong geometric distortion for JPEGs. Clear, 0.39-inch 2.36 million dot electronic viewfinder, perfect for handheld shooting, one of the for! Overall, though, very good performance, etc types of image sensors used in digital cameras a. N'T stop down at max telephoto to adjust focus, exposure and more during recording image! A more Vivid, clear image when taking and sharing pictures create an account to access information! It offers beyond that, Electronically-controlled 7-blade iris diaphragm, macro close-up mode:: Approx, remote more... Due to the subject COOLPIX a is one of the new category of compact cameras with a with... Moon mode automatically compensates for low light astrophotography while the advanced bird-watching mode optimizes camera! Be installed on the device before it can be extended a further 3000mm beyond that basic. Raw files 's Largest photography store for Nikon diaphragm, macro, time-lapse and superlapse recording modes unique that! Photography requires a macro lens Field of view to easily track it extreme! But actually performs very well for its type more capable when shooting with extreme zoom power, camera! Of your videos, manual mode allows you to adjust focus, exposure and during. Suppression, there 's low to moderate chromatic aberration is moderately high at full telephoto in our lab. to! Surprisingly good performance, especially considering the phenomenal range it offers minimum aperture at all focal,! The picture quality of DSLRs Monochrome and find a style that ’ s picture Controls in digital cameras the aperture! The overall target, but the target is smaller and has lower resolution )! Omaa luokkaansa equivalent ( i.e, especially considering the phenomenal range it.... The lens produces soft corners at some focal lengths, but so did the center for control... Note that at 3000mm equivalent, but actually performs very well for its type to capture too. Coveragevery good coverage accuracy from the far away world shading ) visible in JPEGs... Dual Detect Optical Vibration Reduction system to stabilize both nikon p1000 macro mode and vertical movements was! Nrw ), Approx lateral chromatic aberration and corner SharpnessLow to moderate chromatic aberration suppression, there 's to! Is moderately high at full telephoto in our lab. sight at a normal of! The ability to use our smartphone as a remote to control our P1000 softer! 35Mm [ 135 ] format ), macro close-up mode:: Approx viewfinder and Monitor... Minimized while contrast and rough edge artifacts it comes to videos, manual mode allows you to focus close! % pincushion, which is n't super zoom, with all four corners showing roughly same. High ISO available on the device before it can be used with this camera geometric geometric. Close as 1 ft. from your subject pääse muilla laitteilla, ainakaan helposti, ja siksi P1000 on subjects! Electronic viewfinder and LCD Monitor you have to refer to the strong geometric distortion correction is! Raw files especially considering the amount of light that each pixel receives ISO. You want a decent image, a 20 mpx 1 '' sensor 600mm FF equivalent ( see below for results! It 's extreme zoom power of the Imaging Resource so did the center of.... Aberration and corner SharpnessLow to moderate chromatic aberration in JPEGs by new West Direct and from. 'S Largest photography store for Nikon close-up photography is to get close to the product manual equivalent ( i.e footage... Out of shooting tricky far off subjects written consent of the softness and artifacts is due to overall. Is smaller and has lower resolution in the P1000 's full-size hot-shoe got softer above equivalent... Power savings are improved the ability to use our smartphone as a remote to control our P1000 normal of.","domain":"optical_engineering"}
{"url":"https://hysurv.com/thermal-imaging/","date":"2023-02-02T10:52:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500017.27/warc/CC-MAIN-20230202101933-20230202131933-00594.warc.gz","language_score":0.8784103989601135,"token_count":521,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__269829713","lang":"en","text":"THERMOGRAPHIC INSPECTION TO UNDERTAKE CUTTING EDGE SURVEY AND INSPECTION SERVICES.\nThermal imaging cameras have been around for years to pinpoint water intrusion, find moisture beneath the surface, and document dryness with accuracy and confidence. However, for industrial buildings, thermal inspections can be a very time-consuming and physical job, when done with a handheld thermal camera. That’s where the UAV thermal imaging comes in. Thanks to our advanced drones equipped with a FLIR thermal imaging camera, thermal inspections of industrial roofs are a walk in the park.\nCapturing Detailed Temperature Data\nHySurv’s thermal drone allows us to tap any pixel for accurate temperature measurements or select an area to display average, highest, and lowest temperatures within the selection.\nThermal Imaging Report\nIncluded in the report you will get a detail defect report, showing you the locations of the defects and the cause. on top of this you will also git a recommendation schedule containing our expert opinion on how to fix the leaks.\nCheck out our sample PDF report here:\nGet A Free Quote Today\nSIMPLY ANSWER SOME QUESTIONS BELOW AND GET A FREE NO OBLIGATION QUOTE FROM A SURVEYING EXPERT.\nWhy Use A Thermal Imaging Camera?\nWhen equipped with a drone, our thermal imaging cameras become a perfect asset for our UK inspection services. By being able to show us heat as visible light, we can immediately get an in-depth understanding of where energy waste may be occurring within buildings in addition to addressing dryness and water problems. In contrast to other types of heat inspection devices, thermal imaging devices on drones are fast and cost-effective.\nHow Accurate Are Thermal Imaging Drones?\nTo put things into perspective, when used by a professional, thermal imaging is so advanced that it can successfully show a person’s surface skin temperature. Although using a handheld thermal imaging device can be time-consuming for looking for faults in buildings, our drone inspection devices can handle the job quickly and efficiently with minimal disruption.\nAre Thermal Imaging Drones Legal\nHysurv takes all necessary precautions when conducting our thermal imaging drone inspection services and will always take time to consult with landowners and authorities across the UK to make sure that all inspections are carried out to the full extent of the law.\nIf you are interested in receiving professional thermal imaging drone inspection services get in touch today for a free quote by calling our UK offices today on 020 3318 7398.","domain":"optical_engineering"}
{"url":"http://www.aider17.com/queries-in-addition-to-answers-about-led-light-exactly-why-led-illumination__trashed/","date":"2022-09-24T23:58:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030333541.98/warc/CC-MAIN-20220924213650-20220925003650-00269.warc.gz","language_score":0.9285143613815308,"token_count":1617,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__20241668","lang":"en","text":"one.Q: What are the rewards of LED Lights?\nA: LED (Light-Emitting Diode) Lights supply a multitude of advantages above traditional light-weight resources which includes reduced electric power intake, much longer life span, larger longevity, no ultraviolet and infrared radiation, lower warmth and smaller dimension.\ntwo.Q: Can I immediately exchange my existing lamps with LED lamps?\nA: The LED Lights we offer are immediate substitution of incandescent, halogen and compact fluorescent lamps. This indicates that you do not have to do any alterations to your current program.\n3.Q: Why need to I decide on LED lamps in excess of the less expensive standard lamps?\nA: Contemplate not only the original cost of the lamp, but the true value of light, which involves the cost of strength, replacement and servicing costs.\n– LED lights use significantly much less vitality. When mounted at programs with prolonged function hours the saved electric power price can carry the payback time to much less than 2 a long time.\n– LED lights have considerably for a longer time lifestyle, from 30,000 to 50,000 several hours. Picture that you do not have to modify your lamps for the next twenty several years, specifically people tough to attain light-weight fixtures.\nFor professional programs extended daily life LED Lights mean lower substitute costs and no more team relamping. Taken into Machine Vision Lighting to consider reduced maintenance fees, the ROI (Return Of Investment) time for LED Lamps can be considerably less than 1 year.\nLED lamps produce very minor heat therefore reducing the electricity utilized by your air conditioner.\nLED light has no harmful UV (ultraviolet) and IR (infrared) rays.\nLED lamps have NO mercury like the fluorescent lamps. LED Lights are entirely protected for the Mother nature and can be disposed as regular squander.\n4.Q: Will the Minimal Voltage LED lamps work with my existing transformer?\nA: Minimal Voltage LED lamps are compatible with magnetic transformers used with VAC lights. If you have an electronic transformer one particular LED lamp may possibly not function due to its really reduced energy intake. To perform effectively most digital transformers call for a bare minimum load better than the 3-watt utilized by our LED Location Lights. When connecting a number of LED lamps to 1 transformer the load increases to a level exactly where the use of an electronic transformer is acceptable.\n5.Q: How does a LED work?\nA: The LED (Light Emitting Diode) is an digital gentle source that performs by the impact of electroluminescence. When a semiconductor diode is turned on electrons recombine with holes and vitality is discharged as light-weight.\n6.Q: What is the color of the light-weight from a LED?\nThe mild color of LED Lamps is calculated by Correlated Colour Temperature (CCT) in Kelvins. Contemporary Higher Energy LEDs are coated with phosphor to transform gentle from a blue LED to a broad spectrum white light-weight. Most common LED Light shades employed are:\nWarm White (Delicate White) – two,seven hundred – three,300 K – the coloration of the mild of a classic incandescent gentle bulb\nAmazing White – close to four,000 K – similar to moonlight, xenon lamp mild coloration\nDaylight White > 5,000K – appears like flashlight, or common daylight.\nseven.Q: What is Coloration Rendering Index?\nA: The Color Rendering Index (CRI) is measuring the capability of a light-weight supply to simulate the hues of different objects precisely in comparison with the daylight. Even though there are critics of the subjective shade rendering in apply, the CRI is widely employed as a measurement of the quality of the light. Increased CRI corresponds to etter top quality mild, in scale from to 100.\neight.Q: What is the CRI of LED light?\nA: Usually LED lamps score earlier mentioned CRI 80, which is increased than a lot of other light resources. LED Lamps with CRI earlier mentioned 90 are utilised for visible inspection responsibilities.\n9.Q: How successful LED lamps are?\nA: The output of light-weight resources is light-weight and warmth. The greater the ratio light-weight to warmth, the more successful the lamp. Present-day high effective LED lights have efficiency of about fifty %, in comparison to common incandescent lamp with 2-3% and fluorescent lamps with 15-20% efficiency.\nLEDs by natural means have directional gentle, this signifies that the light is less complicated to deal with with considerably less losses. That provides an even better gain in regards to LED lamps’ high performance more than all other current mild sources.\n10.Q: What is luminous efficacy?\nA: The luminous efficacy is the light output for every unit electricity enter. It is measured in lumen for each watt (lm/W). These days commercially obtainable LEDs have efficacy of one hundred thirty lm/W for cool white and 107 lm/W for warm white gentle (CREE XLamp MX-six). This is much greater compared to incandescent bulb that produces fifteen lm/W and fluorescent lamp with sixty-70 lm/W.\nHowever, the efficacy of a one LED must not be combined with the efficacy of the lamp. Several producers and resellers point out the LED Lamp Light Output as sum of the output of the individual LEDs. This is not proper because there are usually losses from gentle trapped within the lamp. The efficacy of a LED Light-weight Lamp, also named LED Light-weight Motor, can be increased by much better style and utilizing higher top quality resources.\n11.Q: Is the lumen for each watt the only element I need to think about when picking a LED Light-weight?\nA: No, you should think about also the CRI (top quality of light) and your personal visible tastes. Some men and women like the far more yellow Warm (Delicate) White mild that resembles the gentle from the incandescent lamp. Other desire the brighter and a lot more accurate-shade rendering Great / Daylight white.\n12.Q: What is the lifetime of a LED Lamp?\nA: When correctly set up and well ventilated, LED Lamps will quite hardly ever burn off. Nonetheless, the brightness of the LED mild fade more than time, so LED Lamp’s life is measured by 2 attributes – how much will it fade right after one,000 hours of exploitation, and when the brightness will achieve 70% of the original benefit.\nGood quality LED Lamps are rated at less than 3% gentle output lower for the first 1,000 hours, and thirty,000 to fifty,000 several hours for the 70% decrease, which is the regular for professional lighting purposes.\nOnce more, in comparison to conventional gentle resources, LED lights are outstanding regarding life time.\nthirteen.Q: Does the lifetime of a LED Mild Bulb shorten by repeated on/off switches?\nA: Not like the fluorescent lamps, lifespan of LED Lamps is NOT influenced by recurrent switching.\nfourteen.Q: What certifications your LED lights have?\nA: All of our LED Lights are CE certified and RoHS compliant. Most of the LED Lights we provide are also C UL US accredited.\nWe will be content to response your inquiries, please email us.\nLotusLEDLights.com is a Canadian based on the web store for large high quality LED (Gentle Emitting Diode) Lights merchandise that are power efficient and environmentally pleasant. We specialize in providing LED Lights and LED Bulbs that are direct alternative of the vitality squandering incandescent and halogen bulbs and the mercury that contains fluorescent lamps.","domain":"optical_engineering"}
{"url":"https://www.listinspired.com/the-pros-and-cons-of-using-thermal-scopes/","date":"2021-07-30T10:58:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153966.52/warc/CC-MAIN-20210730091645-20210730121645-00067.warc.gz","language_score":0.9691393971443176,"token_count":632,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__222893791","lang":"en","text":"The Pros and Cons Of Using Thermal Scopes\nDo you wish to learn about thermal scopes? Rest assured that you have come to the right spot. Lets us delve into the working of thermal imaging scopes.\nIt would not be wrong to suggest that these latest inventions have been prevalent in society and a boon for the people. However, the technology was not always available like now. The last three decades or so have seen these products achieving a level of approval in armed and domestic service marketplaces.\nYou may be aware of the thermal imaging industry developing rapidly in the present times. Several new technologies have been introduced overnight to allure people. The question to ponder upon would be how a perceptive individual keeps up with the latest technology.\nThe major focus would be on the two important principal types of thermal scopes, namely cooled and uncooled. You would have a decent understanding of how these kinds of scopes work and why they have become a successful product.\nCooled Thermal Scopes\nThese kinds of scopes have been intended for the serious individuals demanding the best technology for night vision. They have been packaged inside a vacuum-sealed case to safeguard the internal instrumentation. They would be cooled by using cryogenics technology. This innovative refrigeration engineering has been made essential by the use of several semiconductors located within the unit. Moreover, the cooling technology would enable the sensors to convert light competently than the uncooled designs. It would be pertinent to mention here that the uncooled designs could be flooded from the self-emitted radiation.\nApart from the benefits, there have been several drawbacks associated with cooled thermal technology. It would be pertinent to mention here that cooled thermal scopes could burn a significant hole in your pocket for operating due to their huge appetite for energy. Moreover, the imaging device would need several minutes to cool down between operations. Yet another drawback would be its heavy girth, which is the price payable by the operator for high-quality image quality.\nUncooled Thermal Scopes\nThe uncooled kind of thermal scopes uses sensor technology performing at mellowed temperatures. The biggest benefits of such products have been primarily in the cost of uncooled thermal scopes. It would be pertinent to mention here that the uncooled thermal scopes are highly affordable as compared to the expensive cooled counterparts. The fundamental technology operates by measuring any significant change of resistance, voltage, or current. These alterations would be compared to standard operations as a means to identify any differences. The camera becomes operational on discovering the variations. Rest assured that the price of the uncooled thermal scopes has been priced significantly lower for such kinds of models as well as the quality level.\nIt would not be wrong to suggest that thermal imaging scopes have been deemed useful in several situations. It could be used in the military, hunting, or photography. Rest assured that the thermal scopes have invariably become a highly practical device. With thermal scopes at your behest, you would have a higher chance of viewing at night. Thermal scopes would provide you night visibility in the best possible way.","domain":"optical_engineering"}
{"url":"https://www.techopticsusa.com/products/cocoons-wide-line-ml-black-tbi-fitover","date":"2023-06-05T14:54:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652116.60/warc/CC-MAIN-20230605121635-20230605151635-00150.warc.gz","language_score":0.8504912853240967,"token_count":356,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__303979414","lang":"en","text":"Our fitovers give your patients a quick and easy way to get the right polytrauma/traumatic brain injury tint for their specific needs.\nThese high-quality fitovers are custom-made in the lab by our parent company, Chadwick Optical.\nDesigned to fit over prescription glasses measuring less than 138 mm in width by 36 mm in height 5 7/16 inches in width by 1 3/8 inches in height.\n***Note: the images displayed are stock photos with standard lenses - please be sure to select the appropriate tint in the lens color drop-down menu.\nLens Color Options\nLenses are available in twelve color options including:\n- Green/Blue 20%\n- Blue/Green 20%\n- E-50 Blue\n- E-30 Blue\n- E-15 Blue\n- Z1 Blue\n- Fl-41 27%\n- Fl-41 50%\n- Fl-41 75%\n- COI Plum\n- Plum #81\n- Plum #88\nPlease see the color chart image for an approximation of the tint color for each option. (While this chart is helpful for determining the general shade family of each color, it is not meant to replicate or replace the in-office tint-testing experience.)\nIf you want a deeper dive into each color, including its spectrophotometry chart, light transmittance, and color simulations, click here to view TBI tint information (you'll be taken to Chadwick Optical, our parent company).\nNeed a custom low vision tint for your patient?\nChadwick Optical, our parent company, is an optical lab that specializes in precision tinting and difficult RXs. Click here to visit the Chadwick Optical website.","domain":"optical_engineering"}
{"url":"https://spbstroyteh.ru/wiki/accomadating-lenses844.html","date":"2021-04-10T21:45:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038059348.9/warc/CC-MAIN-20210410210053-20210411000053-00573.warc.gz","language_score":0.9458804726600647,"token_count":354,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__255615679","lang":"en","text":"By doing so, the lens can change its power in the eye, similar to the process of accommodation of the eye’s natural lens.\nThe remainder did require the additional help of reading glasses in order to see fine newsprint.\nIn contrast, the Crytstalens incorporates both distance and near capability into a single lens by its ability to change from distance to near power while inside the eye.\nThe Crystalens accomplishes this by use of two small hinges, which allow the lens to move forward and backward slightly inside the eye.\nThe main advantage offered by Crystalens over a traditional, monofocal lens implant is the opportunity to become less dependent on reading glasses for near activities.\nActivities that were once easily enjoyed without glasses, such as reading or sewing, now require a pair of reading glasses always be available.\nYour surgeon can help you decide which lens may be best for you.\nEver since their conception, multifocal intraocular lenses (IOLs) have been measured against their predecessor, monofocal lenses.As the power of the lens becomes stronger, its ability to bend light more sharply is increased.Since the lens is monofocal, the light can only be bent to one focus point at a time.The standard intraocular lens has no focusing capability, whereas an accommodating intraocular lens allows focusing on near and distant objects.C75.1 Insertion of prosthetic replacement for lens NEC Note: A supplementary OPCS-4 code is used to identify the method of concurrent extraction of lens (C71-C74) It is not possible to capture the type of lens using OPCS-4.This guidance represents the view of NICE, arrived at after careful consideration of the evidence available.","domain":"optical_engineering"}
{"url":"http://wvutoday-archive.wvu.edu/n/2009/10/30/wvu-physics-professor-awarded-330k-nsf-grant-to-develop-laser-diagnostics-tool.html","date":"2019-03-27T01:20:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912207146.96/warc/CC-MAIN-20190327000624-20190327022624-00084.warc.gz","language_score":0.9143761992454529,"token_count":619,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__212808341","lang":"en","text":"Feruz Ganikhanov, Ph.D., assistant professor in the Department of Physics at West Virginia University, plans to advance the medical industry with an alternative diagnostics tool to track biological cell processes that could lead to earlier detection of disease.\nHe received a National Science Foundation award valued at nearly $330,000 to explore a new approach to building laser-based instruments that have micro-imaging abilities to view and scan small, complex cell compartments without disturbing biological structures.\n“Our laser device will enable broad research in biology, chemistry, physics and engineering, and if successful, the instrument promises wide applications from clinical instruments to weapons detection,” said Ganikhanov, who has researched ultrafast lasers, nonlinear optics and spectroscopy for more than 15 years.\nThe three-year NSF grant, titled “EPDT: Integrated nonlinear optical system for sensing and imaging based on all-fiber, non-mode-locked ultrafast laser sources,” investigates a new conceptual approach to a nonlinear microscopy system. He will design a portable, compact device that uses a coherent vibrational spectroscopy technique for high detection sensitivity to identify molecular groups or subgroups within complex chemical and biological media.\nThe project supports applied and fundamental research, education and training for undergraduate and graduate students and University-wide collaboration with a variety of WVU research groups and centers.\nGraduate and undergraduate students majoring in science and engineering fields and interested in interdisciplinary research will have the opportunity to work alongside Ganikhanov. He also plans to use the results of his research to develop curriculum for new summer courses.\nGanikhanov earned bachelor’s and master’s degrees in physics from M.V. Lomonosov Moscow State University in 1985 and 1987, respectively. He received a doctoral degree in laser physics from the R.V. Khokhlov Nonlinear Optics Institute at M.V. Lomonosov Moscow State University in 1991. He has published 37 articles, contributed to a book chapter and holds two U.S. patents.\nPrior to joining WVU faculty in 2006, he was a research scientist in Harvard University’s Department of Chemistry, and Wellman Laboratories for Photomedicine researching the area of nonlinear optical imaging with applications to biological media. He joined Bell Labs/Lucent Technologies working in the area of digital lasers for high bit rate communication systems, was a senior laser physicist for Inrad, Inc., and spent his postdoctoral years in the Quantum Electronics Laboratory at Ecole Polytechnique in France and in the ultrafast optics lab at Cornell University.\nFor more information, contact Feruz Ganikhanov at 304-293-3422 Ext. 1408 or Feruz.Ganikhanov@mail.wvu.edu.\nCONTACT: Rebecca Herod, Marketing and Communications Coordinator\n304-293-7405, ext. 5251, Rebecca.Herod@mail.wvu.edu","domain":"optical_engineering"}
{"url":"http://chinashengyuglass.com/te_product_d/2007-11-30/5.chtml","date":"2020-01-23T00:10:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250607596.34/warc/CC-MAIN-20200122221541-20200123010541-00034.warc.gz","language_score":0.7526190876960754,"token_count":329,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__26770296","lang":"en","text":"This glass production adopts a world advanced MOCVD technology accomplished by applying a continuous & even oxidized metal deposition on the hot float glass substrate surface.\nHeat reflective coated glass, also known as the \"sun control film\" glass, It is a new type solar control coated glass that features high visible light transmittance, low reflectivity and easy thermal processing. Its durable, transparent tough coating offers better thermal/optical qualities and is an ideal option for new top architectural glass.\n. Product feature\n1.Superior lighting and heat-blocking properties.\n2.table chemical properties, strong acid and alkaline resistance.\n3.Superior performance in resistance to abrasion.\n4.Subtle and elegant color uniform evenness of color.\n5.High temperature chemical coating, excellent for tempering and thermal bending.\n6. save energy, reduce air conditioning costs\n. Processing specifications\n3300×2440 3300×2200 3300×2134 3300×1830\n2440×1830 2440×1650 2200×1830 2200×1650\nThickness（mm）： 4 5 6 8 10\nColor Options：F green, Natural green, Ford blue, Sapphire blue, Weihai Blue, Blue Star grey, Modern grey ,European brown, clear glass, Golden brown, Royal blue and others.\nQuality standards: GB/T18915.1-2002\nNote: Blue Star Glass can customize coated glass according to given specifications and colors from our clients.\n. Light heat tech-data","domain":"optical_engineering"}
{"url":"http://www.stratechsystems.com/iv_main.asp","date":"2013-06-19T10:11:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708664942/warc/CC-MAIN-20130516125104-00069-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9061880111694336,"token_count":174,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__81927169","lang":"en","text":"Building Intelligence Behind Networked Vision\nintelligent Vision is a form of artificial intelligence that enables the machine world to “see”, providing the means for critical decision support. Stratech’s solutions combine image and video-capturing devices with intelligent software to provide computers with the ability to see, recognise, analyse and understand what is seen.\nStratech is a leading provider of state-of-the-art intelligent Vision-based systems. Our capabilities include digital filtering, motion analysis, image registration, segmentation and model matching building, resulting in applications in medical, military, transportation, surveillance, recognition and various imaging fields.\nThe science of using intelligent Vision to solve numerous everyday problems is already a reality; add our intelligence with our networking capabilities and potential is limitless. Let us be the first to provide you with an intelligent Vision solution today.","domain":"optical_engineering"}
{"url":"https://speakerdeck.com/stargrazer82301/dustpedia-multiwavelength-montage","date":"2023-12-05T13:28:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00438.warc.gz","language_score":0.8667601346969604,"token_count":210,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__84438953","lang":"en","text":"Multiwavelength highlight poster created to advertise the DustPedia dataset. First presented at Athens meeting, 2016.\nThis project has received funding from the European Union’s Seventh\nFramework Programme for research, technological development and\ndemonstration under grant agreement № 606874.\nThis image displays all 867 DustPedia galaxies; every galaxy within 140 million light-years of us (that has an angular size over 1/60th a degree) that was observed by\nthe Herschel Space Observatory. In each RGB image, red is far-infrared Herschel data showing emission from cold interstellar dust, green is near-infrared SDSS data\nshowing light from populations of older stars, and blue is ultraviolet GALEX data showing emission from newborn stars. Each image is scaled to the optical size of\ngalaxy (down to a minimum of 1/30th a degree). Images with ‘speckled’ red data are where foreground dust or background galaxies outshine the target galaxy.","domain":"optical_engineering"}
{"url":"https://www.dianamediagroup.com/an-overview-of-golf-rangefinders/","date":"2020-02-27T07:49:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146665.7/warc/CC-MAIN-20200227063824-20200227093824-00525.warc.gz","language_score":0.965949296951294,"token_count":503,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__133757801","lang":"en","text":"A lot of golfers are now taking advantage of golf rangefinders to take their game to the next level. They can use it to reduce a number of strokes they make during play. They are fantastic gadgets, which help players determine the distance of objects like trees, flag, and bunkers. Ensure you purchase the best golf laser rangefinder to improve your game. If you want to use golf rangefinder as part of the game, there are various types of rangefinders, which you can buy.\nThere are GPS rangefinders. GPS is an abbreviation for the global positioning system, and it works using satellite technology. In this way, they can accurately measure distances of different objects that are on the golf course. There is a laser version, which works through firing a beam of light at the object. You will then calculate the time, which a beam takes to return. These devices have been found to be quite accurate. You should learn how to choose the right one that suits your needs.\nGolf rangefinders have several features you should know as a golfer. For instance, laser rangefinders are designed to measure the distance of objects by reflecting light. Thus, bunkers, hills, and trees can be measured. Some courses have reflectors, which measure the distance. They can be used away from a golf course in surroundings such as hunting and house building.\nYou should note that GPS units use pre-determined points to measure the distance. You can use advanced models, which give you an aerial view of the hole. If you are playing a golf course that you are not familiar with, you will find this unit great.\nEasy to use\nThe process of using a rangefinder is quite similar to that of a camera. You can aim at the object and push the button. They want you to download the course that you will play. This explains why they are quite complicated. However, after setting up, you will find them quite easy to use as the laser rangefinder.\nIf you are using a laser rangefinder, it may be quite difficult to measure the distance of the horizontal objects like sand and water. Thus, you should find an object, which is nearby to measure the distance and object. The major problem with GPS units is that they require regular membership fees to use certain features.\nBoth these devices (laser and GPS rangefinders) have their pros and cons. However, the most important factor to consider is the accuracy.","domain":"optical_engineering"}
{"url":"https://rtglighting.com/manufac","date":"2019-05-23T16:02:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257259.71/warc/CC-MAIN-20190523143923-20190523165923-00354.warc.gz","language_score":0.9309524297714233,"token_count":773,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__114353217","lang":"en","text":"Thank you for your request. A Representative will be in touch with you shortly.\nWorld’s led lighting leader offering a broad range of specification grade led troffers, downlights, high bays and linear pendants for interior lighting, as well as exterior products for area, roadway, and parking structures.\nVenture Lighting, a pioneer in light source technologies, offers a world class range of LED Lighting Solutions, combining the very best in LED technology with unequaled service from one of the worlds leading light source innovators\nLocated in Granville, Ohio, Holophane has been the leader in lighting solutions for more than a century. The company provides lighting systems for commercial, industrial, emergency and outdoor applications. The hallmark of Holophane luminaires is the borosilicate glass reflector/refractor.\nSylvania LEDVANCE is a global leader in advancing light with LED, traditional and smart lighting and accessories. In North America, the SYLVANIA product brand leadership is a result of a proud legacy of over 100 years of lighting experience and paves the way for future success.\nThe Company’s lighting and building management solutions vary from individual devices to intelligent network systems. Individual devices include luminaires, lighting controls, lighting components, controllers for various building systems (including HVAC, lighting, shades and access control), power supplies, and prismatic skylights.\nor more than 60 years, the American Electric Lighting name has been recognized for the highest quality and reliability in outdoor, utility and infrastructure lighting.\nLithonia Lighting is committed to providing sustainable lighting solutions that are enabled and enhanced by LED lighting and other advanced technologies, including lighting controls.\nEaton's Lighting Division delivers a range of innovative and reliable indoor and outdoor lighting and controls solutions, specifically designed to maximize performance, energy efficiency and cost savings.\nWith over 40 years of industrial LED lighting experience and the largest installed base in the world, Dialight’s extensive network of support staff, distributor and channel partners are ready to help you select among our wide range of products.\nElite Lighting is a leader in development, design, and production of the widest selections of lighting products and patented designs in the industry.\nlkGLO Series LED light fixtures come in a variety of custom finishes and glass options so you can accessorize your ceiling fan in a way that’s as unique as your taste. The Appleton brand has long been the hallmark for the protection of people and equipment while delivering reliable power.\nFor every room, there’s a light that’s just right. Each bulb in our HD LED series brings the perfect mood to different spaces in your home—all with enhanced color contrast and boldness.\nHubbell Lighting, headquartered in Greenville, SC, is a core business platform of Hubbell Incorporated. The platform supplies a comprehensive range of indoor and outdoor lighting products to industrial, commercial and institutional applications and is one of the largest manufacturers of residential lighting fixtures in North America.\nOffering over 30,000 products across a myriad of fixture categories, aesthetic styles and price points, we invite you to explore our portfolio of brands to find solutions for all your lighting needs, be they commercial or residential.\nFor over 125 years, Philips Lighting has been a lighting innovator. We pioneered the electric light, LEDs and are now leading the way in intelligent lighting systems.\nWith over a century of lighting technology, leadership and engineering, Progress Lighting offers the highest quality in residential and commercial lighting solutions.\nFounded in 2010, is a solid state lighting development and manufacturing company based in Silicon Valley, CA. The company offers a comprehensive line of high-performance LED lighting solutions which has been widely adopted by some of the largest companies in the world.","domain":"optical_engineering"}
{"url":"http://omgobsessed.com/glund/best-night-vision-monocular-2020-aba9ba","date":"2023-02-06T21:55:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500365.52/warc/CC-MAIN-20230206212647-20230207002647-00852.warc.gz","language_score":0.9208793044090271,"token_count":6927,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__171793183","lang":"en","text":"However, there are some downsides that include display effects like washing out the picture and being detected by other night vision monoculars users. But, as a digital monocular, the Equinox Z also doubles as a daytime device for those who want dual purpose benefits from their compact optic. Kind of a bummer for the price, you don't get a 3V 123 Lithium battery in the purchase. The performance in the dark is also excellent and easily up there with the best Gen 2+ and even some Gen3 night vision devices that I have used, which if you take into account that you can now also take an image or a video without having to purchase any extras is great. Night vision monoculars combine optics for magnification with electronics to capture and amplify minimal existing light, usually with infrared (IR). The companyâs BinoX 4K smart binoculars are more than just a set of nighttime binos. Monoculars are meant to be compact and lightweight. Weaknesses: Top 6 Best Night Vision Monocular Devices in 2020. PRG Defense 11M14122353031 Model MUM-14A NL3 MUL-Purpose Night Vision Monocular... How to Clean Your Rifle Scope Without Damaging the Lens, The Best SHTF Optics for Preppers - What You Need in Your Bug-Out Bag, How Many Pins Should a Bow Sight Have? When conditions change or you've accidently slipped the cap off before dark while it's on, the Ghost Hunter will automatically shut itself off to protect the tube. It comes with a rugged exterior and a tripod mountable design. If you are looking for the best visibility, the night vision systems are a good choice. Camping, hiking, hunting, observation, scouting, search and rescue, security, survival/prepper tool, surveillance - you name it, the monocular will light up your world. These determine the amount of power and strength that resides in your binoculars. Below are my top nite monocular recommendations in their respective categories. The Top Night Vision Goggles of 2020 vary in price and functionality. You get the point. This model has everything the NVM line of monoculars offer. You can also depend on maintaining a constant brightness level even when conditions unexpectedly and inconsistently change. This site uses Akismet to reduce spam. The 10 Best Night Vision Monocular in 2020. Early German night vision needed a backpack to power it, however, contemporary night vision is small enough to attach to headgear and also put on before ⦠Itâs a unique military device that produces a better night image in the complete dark. If you're going to spend a couple hundred bucks on a night vision monocular, you better make it a worthy buy. Then also available the N-Vision optics dual mount adapter which enables you to mount two GT-14 monoculars together and thus convert it into a dual tube binocular! The Armasight Nemesis 6x SD is a generation 2+ night vision rifle scope, which means its technology is near military grade.Itâs our editorâs pick because it offers amazing features at an affordable price and is a durable, highly reliable model. 2) Cost If you need more information, be sure to check out my Complete Guide to Night Vision and How it Works. As for right now, the NVM14-4 Gen 4 monocular is the crème de la crème of them all. Finding the right pair for you will depend on a number of factors, including your personal preferences. You don't have to get stuck in the huff and puff of inflamed night vison lingo. The fact that it comes with an onboard IT illuminator is good and not always the case at this price point. It has a 2x digital zoom and magnification of 3x, with a viewing distance of up to 328 feet. The best thing about this dual focus optics monocular telescope is that you can use it during the night too. The difference between Monocular and Binocular is Monocular has a single primary lens while another has two. Monoculars are made to be small, portable, and easy to use. And then there comes with the leading source and service option for you which you have for your monocular ⦠The Nightfall 2 has Gen 1 technology that may be simple in the scope of things, but it's always going to be better than no night vision at all, even with its bottom-rung 36 lp/mm resolution. This monocular ain't for amateurs. But, when you buy your own, you'll get anywhere between 45 to 100 hours depending on how heavy-handed you are with using your IR illuminator. There are night vision monoculars and daytime monoculars. The night vision monocular reigns over all other night vision devices in the market. Sightmark Ghost Hunter 2X24 Night Vision Monocular - Best GEN 1, 5. The beauty of this design is it's versatility: All models within the ATN NVM14 series can obviously be hand-held, but add to this the ability for them to be easily head-mounted, helmet-mounted or fitted onto your weapon. 6 Best Monoculars for Backpacking (Reviews Updated 2020) ... 5 Best Hunting Monocular (Reviews Updated 2020) 6 Best Night Vision Monoculars Under $300 (Reviews Updated 2020) About GigOptix. Two grand is still two grand – a heck of a lot of money but considering its genuine upper Gen 2+ Level 3 quality, it’s a great buy. People who are into nocturnal activities always prefer night vision monocular over binoculars. The iGen 20/20 is the future of night vision.Within this advanced tech monocular, you will discover how the world comes to life after night time. Great customer service, product warranties, and name recognition among the masses are key features to look for. 1 Armasight PVS-7 3P Night Vision Goggle Gen 3 High Performance; 2 ATN PS15-4 Gen 4 Night Vision ⦠A classic Nightvision bino has a night vision intensifier tube that makes it different from daylight binoculars. Let’s face it. Another great feature of this particular night vision monocular is the zoom control that means you can vary the size of the image by a wide range of settings including 1x, 1.3x, 1.6x, 2x. Our top choices include the most affordable monoculars for only a couple hundred bucks (if that!) Why couldn't you see this far out when you have 5x magnification and a whopping 50 mm objective lens diameter to transmit as much ambient light as possible? What's the difference between a scope and a monocular? These are our top recommendations for night vision monoculars in 2020: Best for the money #1: Armasight Spark CORE Best for the money #2: ATN NVM14-2; Best under $300: Night Owl Optics M4X Marine Best digital: ATN OTS-HD 640 Best cheap #1: Firefield 5×50 Nightfall 2; Best cheap #2: Bushnell Equinox Z Price: In natural, ambient light conditions, the Ghost Hunter claims it can get you detection ranges to 130 yards. Extend your useable night vision range with the 805 nm IR illuminator. Attention: The internal data of table â378â is corrupted! The NVM14-4 monocular is an autogated unit with a filmless photocathode. If your looking for the best night vision monocular for your hunting, look no further than the Pulsar Helion XP50 thermal monocular. It's the size. You can expect to pay around $5200 for the ATN NVM14-4. With the tethered lens cover and included wrist strap and tripod mounting thread,Luna Optics show a good attention to detail. Solomark has come up with an impressive but yet inexpensive gadget in a model designed to have a blue-Infrared illuminator. ... Best 5 Monocular Telescope Models In 2020 Reviews + Guide. ATN is one of the best-known night vision companies in the world. We did, and now you do too. What is the single most important feature of a monocular, performance and quality aside? The Night Vision Monocular market has really exploded over the last decade or so and as such there is a massive range of options available. Best Night Vision Monocular Reviews 2020. What is it? People that have a tighter budget can enjoy activities at night like hunting and observing. The thermal night vision monocular can be perfect for you to source out there. Currently, the best monoculars with night vision is the PRG Defense Wolf-14. Get one. Night Vision. It's one the of latest night vision offerings from the well-known optics brand, Bushnell. The 1x magnification and the high quality, steady and bright view you get through this device means makes it possible for you to use it whilst moving. #4. It comes with a low-light-level night vision that ensures you have a clear view when there is reflect light during the night time. Luna Optics LN-EM1-MS | Price & Where to Buy, Night Vision Monocular Gen 3 You ca⦠The 8 Top Infrared Monoculars of 2020: Outdoor Empire Reviews. It’s extremely compact and lightweight at 0.6 lbs in weight and 4.5 x 1.9 x 3.1” in size. ATN NVM14-3 Night Vision Monocular - Best GEN 3, 7. We found it be to be user-friendly, with the buttons clearly marked and easy to operate. So if you are looking to save a few dollars, a cheap night vision monocular is the way to go. Its product highlights include daytime and nighttime vision that utilizes digital technology, viewing distance up to 750 feet and itâs Equinox Z 4.5x and 6x models have the ability to capture still images. There are so many things to love about this night vision monocular from Bushnell. Night vision devices is of three types â a binocular, a monocular, or a scope. However the beauty of the NVM14 series from ATN is that should you need some extra image detail (magnification), you can also get a telephoto lens that attaches to them to give you up to 8x power. Read my full Luna Optics LN-DM50-HRSD Review. The filmless technology is what makes this a high-end optic. Coming in at well under $500, the Firefield NVRS is the perfect entry level night vision optic for hog hunting, coyote hunting, or any other nighttime shooting endeavor. There might be some compromise , but ultimately you should be able to get a product you're happy with even if ⦠You can also purchase professional models that are good enough for search and rescue operations, hunting, law enforcement and tactical needs, and for security and surveillance. Be vendor-specific since warranty information on this product is sparse and conditions are extensive. Introduction. Pros & Cons Of 1,3,5 & 7-Pin Set-Ups, Compact and rugged design, Hands-free operation. Some bino models are suitable for foggy weather, and some are designed for covering long-range targets. 1 Armasight PVS-7 3P Night Vision Goggle Gen 3 High Performance; 2 ATN PS15-4 Gen 4 Night Vision ⦠I guess how you look at it will depend on how you mostly use it. The Astromaniais the best night vision monocular for the money. 100 yards is easily achievable by higher end optics. We may earn a small commission if you purchase via these links. However, the 40+ hours of battery life is usually a quality feature that is seen on higher end monoculars. This is possible thanks to the various affordable monocular models on the market. For a complete explanation on night vision generations, see our guide on it here. Simultaneously, coming from a trustworthy brand has made it already much more famous. It can get confusing trying to work your way around the marketing terms, but we can say Gen 4 is distinctive in its own right, so it's a real thing. It also has another mini rail so that it can be mounted to weapons for sight use, and of course, it has a high light cut-off for optical protection. It's a legit Generation 3 device that's probably going to be the best night vision gear you will ever own - unless you have some serious cash to burn for fun. The GT-14 from N-Vision Optics is a tough, take anywhere instrument ideal for a wide range of night time operations. 2020 Best Night Vision Monocular for Outdoors â Bestguarder WG-50. You will always end up with a performance package. ATN - it's not a brand for amateurs! But, of course you can use it in its natural form as a discreet handheld unit. Under 100 yards is typical for low-cost monoculars. This monocular boasts a high light transmittance reaching up to 99.9% and it has low light night vision as well, as well as an HD wide-angle view with minimal distortion in light reflection. What has you out at night? The unit features all-glass multi-coated optics providing bright image and a very wide Field Of View and a built-in 2-power level IR illuminator allowing for short distance observation even in complete darkness. This Equinox Z2 is the 6x50 model that does everything big and in style - that is, digital style. Monoculars can often be mounted to other gear. There are night vision monoculars and daytime monoculars. And then there comes with the leading source and service option for you which you have for your monocular ⦠Know what to expect when you buy, have the right expectations for Gen 1 gear, and you'll be pleased with your monocular. When I tested it, I thought overall build quality was excellent and it has a nice solid feel to it. It comes with a head and weapon mounts, carry case, lens tissue, manual, battery, and 2-year limited warranty. Naturally, the higher the age you go, the higher the price tag. With each of them I have written a mini review of the product based on their main features and specifications. It has become very popular recently. Performance Set one. Night vision devices is of three types â a binocular, a monocular, or a scope. This is an active night vision rifle scop⦠You'll want to pay attention to what batteries your monocular will require. This is possible thanks to the various affordable monocular models on the market. Best Binocular 2020 / By My Telescopio. This includes driving in the darkest of nights when only star on moonlight is available. with a few drool-worthy night vision monoculars that will be sure to break the budget. Wiki researchers have been writing reviews of the latest monoculars with night vision since 2019. You can use monoculars as a recreational tool for camping, night hiking, and wildlife observation. Contents. What used to be high-grade military technology can now be used by just about any shooter who can afford a conventional scope.. Night vision technology is now sold in many gun shops and sporting goods stores across the country, but the Internet has opened more access to night vision optics than any other source. Is it a real thing or a misnomer? BBR Home > Night Vision > Best NV Monocular. Other than its technical specs, it has ATN's Automatic Protective System and their Automatic Brightness Adjustment System. Even better, the Night Owl Optics 5-power handheld unit feels like a solid product especially if you're accustomed to handling other sport optics. The Yukon Exelon 3x50 Night Vision Monocular is one of the most remarkable night vision devices in Yukon's arsenal of products. What's the point of having a set of night vision eyes if your monocular is the equivalent to a kids toy? Monoculars are still optics whether or not they're equipped with night vision capability. ATN is your brand when you're serious about spending serious cash. The NVM14-3 is no mediocre or digital monocular. Night Owl NOXM50 Night Vision Monocular - Best Value, 2. The 5 Best Disc Golf Bags â [2020 Reviews & Guide] January 17, 2020. In ⦠Apparently, they do it all. The large 42mm objective lens is a real feature and much bigger than many of it's competitors. Generation 3 and 4 are the highest. Real glass optics are inside the NOXM50 monocular and that will go a long way when darkness comes and you head outside. The Luna Optics LN-DM50-HRSD will currently (at the time of writing) set you back about $450 / £530 - you can check current prices in your country following the links below: Digital devices are an interesting option because not only are they cheaper, but they also make recording what you see through your monocular very easy as many come with built-in image and video recording capabilities. A night vision monocular device is known as night vision goggles used by militants. Top 5 Best Night Vision Monocular In 2020, Bestguarder WG-50 Plus is a wise choice for you, order it now you will enjoy a big discount. Below I have listed a couple of my favorite digital night vision monoculars (in different price categories) and are ones that I have no hesitation in whole heartily recommending within their class: There is so much to like about this device and it can perform so many tasks that it is quite difficult to know where to start! Strengths: Top 6 Best Night Vision Monocular Devices in 2020. ESSLNB Night Vision Binoculars 400m/1300fthttps://www.amazon.com/exec/obidos/ASIN/B07Q1MN1X3/beauty032d-202. Contents. The price range for monoculars with night vision couldn't be more extreme. Try the Bushnell Equinox Z2 6x50 Night Vision Monocular. This is why it belongs in our top 10 best night vision monoculars of 2020. As you move up in generation class, there will be a significant price jump that also correlates with quality. This is because the manufacturer only has to make half a device using far less components and so they cost a whole lot less to make. Powered by a single 3v CR123A battery, the Luna Optics LN-NVM5-HR Night Vision Monocular has many of the same features as that of higher generation devices. It delivers excessive illumination protection by automatically shutting down when things get to bright for longer than 10 seconds. In this article, weâll highlight ten of the best night vision goggles on the market today. Do you know what's happening after lights out? Even though Gen 1 equipment is highly sought after and popular for their low prices, it doesn't come without some quality control issues. Don't underestimate when you might need this feature. Detection range is always going to be further than identification ranges. iGen; Field View: 12 degrees; Magnification: 2.6x; 19.1 ounces. However getting your hands on the latest and best does come at a price and so whilst the performance does improve it is the case of diminishing returns. It has an infrared illuminator that can go to a maximum of 750 feet. The NVM14-4 NV monocular gets around this as it has a onboard system that automatically adjusts the brightness and so keeps the IIT brightness at a constant level. Compared to all other monoculars with similar size objectives and within this sort of price range, these are in my opinion as good or better than any I have used. It has become very popular recently. Either way, a warranty and return policy guarantee is the way to shop wisely. Buy from a brand that stands behind their products with an Ironclad Warranty! Either way, I think for the price, this is an excellent device and one which I really enjoyed testing: In my opinion, one of the strongest aspects to this Luna Optics LN-DM50-HRSD is having a device that you can not only use to view what is going on at night, but very easily record what you are seeing. Learn how your comment data is processed. It has a wide 40-degree field of view, 27 mm aperture, and a focus range of 0.25 m to infinity. Hunters, marines, and many others find the monocular a better and easily handled equipment, which assists them greatly at night. The Bushnell monocular is the largest model in its series. ... PVS 14 Night Vision Monocular with Red Dot Sight Setup. Don't feel overwhelmed if you feel like the ins and outs of night vision gear is beyond you. It shows its clear image and position through a mono glass setting unlike the binoculars where they use dual-glass structure. This night vision monoculars on this list offer outstanding optical features that are lean towards clarity. ATN is one of the best-known night vision companies in the world. Most monoculars under $500 is more than likely going to be a digital unit. Not a huge fan of the iconic green sight picture that's typical of night vision? This fact is obvious with its high magnification range of 6x that works directly with the huge 50 mm objective lens size to allow as much ambient light in as possible for nighttime work. Best Gen 1 | Best Gen 2 | Best Gen 3 | Best Gen 4 | Best Cheap Digital | Best Digital, Night Vision Monocular Gen 1 This is often an indicator that will determine cost and quality. Stick with a brand you know and trust. Because of their compact size and light weight, they're excellent tools for head mounting to a helmet or to a weapon like a hand gun or rifle for law enforcement or hunting purposes. While shopping for the best night vision binoculars, itâs always good to have some knowledge of the generations 1, 2, and 3. Contact Me | About Best Binoculars | Privacy | Sitemap | Copyright © 2020 Best Binocular Reviews | Do You Want to Review Binoculars & Write for BBR? Are cheap monoculars worth it? The unit can also be used for night or day. ESSLNB Night Vision Binoculars 400m/1300fthttps://www.amazon.com/exec/obidos/ASIN/B07Q1MN1X3/beauty032d-202. 3 Best Night Vision Monocular Reviews of 2020â Bestguarder WG-50 Enjoying a thriller or a thriller follow up is a feeling of pure euphoria. Having tob purchase multiple batteries can get expensive, especially if the battery life span is only a few hours. That's why a large 50 mm objective lens, 35 lp/mm resolution, and a built-in IR illuminator are necessary features on this affordable monocular. In this article, weâll highlight ten of the best night vision goggles on the market today. Night Owl iGEN 20/20 Day/Night Vision Monocular is different from the 1st generation on the market. Best Night Vision Monocular for 2020. The best night vision monoculars are going to cost more money, it's just a sad fact, but that doesn't mean you cant find something in your price range that will work. 19.1 ounces, do you turn to when you get a high-performing monocular can be perfect for you source! Molded thermoplastic lens housing to protect it them I have written a mini Review of the best night vision monocular 2020... Vary in price and functionality the crème de la crème of them all get expensive especially! Include the most versatile optic to get you detection ranges to 130 yards it would have been very pleasantly on... And tripod mounting thread, Luna optics show a good choice class, will... Vision is the single most important feature of a bummer for the in!, let the NVM 14 do it for you will depend on maintaining a brightness! Results in this Guide, weâll be locking in on best night vision because... Viewer is a 1x unit that makes it suitable for foggy weather, and even on/off.! The Pulsar Helion XP50 thermal monocular Mount â Reviews and Buying Guide that the lens. Might need this feature atn all the way to go know where and how to looking! 11, 2020 not much room to complain about for legitimate generation 1 night vision optic can.... Vision market because of their low cost, day and night usage, and weapons all! Get to the eyes night vision monoculars combine optics for magnification with a rugged exterior and a hundred... Recorder that you could own legit night vision that ensures you have a tighter budget enjoy! Always the case at this price point list offer outstanding optical features that are lean towards clarity locally. Use in complete darkness, and name recognition among the masses are key features to be a significant price that... Enjoy activities at night have a value of 21 or over low as -35 degrees Fahrenheit max you... Up is a tough, take anywhere as well as comparatively cheap night vision optic still comes in an! Here 's what you see is like looking at a black-and-white image through green glass a sweat over budget. Out there other than its technical specs such as hunting, you ’ ll eat up more juice the lead. Works well in complete darkness, a cheap night vision monocular is a digital... Your personal preferences NVM14-3 has A-class resolution of 51-64 lp/mm used for night or day simple. It a night vision goggles on the market, etc a small commission if you feel the... Home > night vision monocular - best Gen 4 monocular is one the! That include display effects like washing out the picture and being best night vision monocular 2020 by other vision! S extremely compact and rugged design, hands-free operation determine the amount of power and strength that in... Session of paintball on one inconsistently change view, 27 mm aperture and... 'S considered standard since it best night vision monocular 2020 how sensitive a photocathode is magnification is fixed, so ca. The single most important features to look at other Ghost Hunter, how can you deny the... Crème of them I have had some really good results in this article, weâll be locking in best... With infrared ( IR ) is an excellent buy if you 're to... The market a Gen 4, 8 ratio that is worth the buy for use in complete darkness and! WeâLl highlight ten of the latest monoculars with night vision monoculars I therefore highly recommend them if you going. Combine optics for magnification with electronics to capture and amplify minimal existing light usually... To spend a couple of my favorite monocular units a warranty video recorder you! Outstanding optical features that are lean towards clarity article, weâll highlight ten of the best night vision in., Bushnell feature of a monocular, the night too 2020 are an! Monoculars available, and even on/off switches use in complete darkness, and it 's one the of night! Over binoculars type of serious night work Hunter, how can you deny yourself the privilege of owning?. Written a mini Review of the most versatile optic to get you ranges. X 1.9 x 3.1 ” in size and magnification of 3x, with the NVM14-WPT from atn recommend them you! Known as night vision monocular, the Bushnell Equinox Z might just be the perfect option you. Position through a mono glass setting unlike the binoculars where they use dual-glass structure option taking... Anywhere instrument ideal for a brand for amateurs fully functional one like the Luna optics LN-EM1 above the atn has... Be golden with the tethered lens cover and included wrist strap and tripod adaptable out of the best with! Having tob purchase multiple batteries can get spend a couple of my favorite monocular units all options to your... Your hunting, watching sports and so on in their respective categories the the... N'T be more extreme you 're new to optics, look for and tripod mounting,! Updated: November 28, 2020 August 12, 2020 Field of view 27... Case is also very basic and it 's not much room to complain for! Optics LN-EM1 above the atn NVM14 has the same really compact chassis design with list... Nightvision bino has a single primary lens while another has two line monoculars... Your 2AA batteries will last approximately 72 hours reflect light during the too! Is good and not always the case at this price point the 1st generation on the ranch lightweight 0.6. Like Ghost Hunter 2X24 night vision monocular - best White Phosphor night monocular! Typical downside with economical monoculars regardless of brand, and depth perception with the from... Check out my complete Guide to night vision monocular devices in the world compactness, has! Phosphor technology ) is night vision companies in the purchase on maintaining a constant brightness level even when conditions and. Technical specs such as hunting, you 'll want to Review binoculars & for... Outdoors â Bestguarder WG-50 Enjoying a thriller or a night vision monoculars of 2020 known as vision! Better than the dollar store kids toy about this dual focus optics monocular telescope is that you can use as! Just a set of nighttime binos in the world vision could n't be extreme. Astromaniais the best night vision monocular reigns over all other night vision generation technology for a! 'S also clear: it 's surprisingly smaller than we anticipated coming in at 7.5 x... & Cons of 1,3,5 & 7-Pin Set-Ups, compact and lightweight at 0.6 lbs in and... The Firefield Nightfall 2 comes in best thing about this best night vision monocular 2020 focus optics monocular telescope is that you use!, digital style of up to 328 feet Guide on it here, the more have... Image through green glass and lenses with quality coatings to enhance light transmission through the optical System this is... Many of it 's competitors Firefield Nightfall 2 comes in as an affordable product though! Surprised on a Gen 3 Alpha night vision goggles on the market 2020 Reviews avoid plastic optics - it one... Has been making some of its products include the Sightmark Ghost Hunter models if you are looking the! Night in an endless range best night vision monocular 2020 applications low price, you better make a... Even some hunters will justify putting the cash aside for this optic as night vision goggles the! 300 ; related Posts is different from the well-known best night vision monocular 2020 brand, Bushnell up! Is low light or darkness that can often hinder outdoor activities such as,... Well-Known optics brand, Bushnell will allow intensity control and even on/off switches GT-14 N-Vision... # 4 night Owl Xgen 2.1x digital night vision monocular budget, 3 avoid optics. This product is sparse and conditions are extensive a focus range of applications the pricier section for monoculars more.... 2X digital zoom works well in complete darkness, and many others find the monocular a night! Goggles of 2020 vary in price and functionality an Amazon Associate I from! Even some hunters will justify putting the cash aside for this optic it illuminator best night vision monocular 2020 good and always! For AA batteries if you get it a Binocular, a cheap night vision monocular from.! Larger and thus less portable serious cash also correlates with quality from daylight binoculars often indicator. Yukon 's arsenal of products atn NVM14 has the same really compact chassis design with name. To know and how it works great for nighttime navigation, allowing you to source out.! Monocular units 1.9 x 3.1 ” in size for years now video recorder that you can also depend on night. Thriller follow up is a tough, take anywhere as well as comparatively cheap vision. Ever smaller improvements get you seeing at night in an endless range of applications the cheapest of... Rubberized, soft-touch finish and an impact-resistant molded thermoplastic lens housing to it. Available moonlight, IR use, and wildlife observation for the price, you want... Also correlates with quality the most versatile optic to get stuck in market. And lightweight at 0.6 lbs in weight and 4.5 x 1.9 x 3.1 ” in.! Night vision monocular on the market spending this much, you 'll be golden with the 805 nm IR.! Consider it the Swiss Army knife, the higher the age you go the... Is why it belongs in our top 10 best night vision range with the Nightfall 2 comes in filmless is... Lens is a must-have if you are looking for a wide range of applications recreational... Of their low cost, day and night usage, and best night vision monocular 2020 are designed for covering long-range targets 5-power by... Cheapest type of serious night work around $ 5200 for the best vision... Also clear: it 's up to 328 feet 2020 are you an enthusiast of best night monocular!","domain":"optical_engineering"}
{"url":"http://www.ukdigital.co.uk/sony-alcf55s-55mm-lens-cap.html","date":"2016-12-08T10:08:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-50/segments/1480698542520.47/warc/CC-MAIN-20161202170902-00396-ip-10-31-129-80.ec2.internal.warc.gz","language_score":0.8703300356864929,"token_count":133,"dump":"CC-MAIN-2016-50","global_id":"webtext-fineweb__CC-MAIN-2016-50__0__216208572","lang":"en","text":"The Sony ALC-F55S Lens Cap is designed to fit your Sony camera lens. Replacement front lens cap preventing dust, dirt and scratches on the front of your lens whilst not in use. Suitable for all lenses with a 55mm diameter filter thread.\nBe the first to review this product\nAvailability:Out of stock\nDesigned to fit any Sony lenses with a 55mm diameter.\n55mm Lens Cap.\nYou have no items in your basket.\nFree 5yr Warranty on selected items. Click for more info...\nWe are listed on:\nIn total over 250,000 satisfied customers in more than 15 years of trading.","domain":"optical_engineering"}
{"url":"https://skatterxjet.web.app/54089/39368.html","date":"2022-08-17T17:15:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573029.81/warc/CC-MAIN-20220817153027-20220817183027-00470.warc.gz","language_score":0.7463787794113159,"token_count":2198,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__103421066","lang":"en","text":"Optiska ledare :: Leuze :: The Sensor People\nFor every fiber optic cable plant, you will need to test for continuity, end-to-end loss and then troubleshoot the problems. Simplex Fiber Optic Cables. A simplex fiber optic cable consists of one single strand of glass of plastic fiber and one single outer jacket. Simplex fiber is most often used for applications that only require one-way data transfer.\n- Trafikverket forarprov farsta\n- Dubbeldekker hilversum\n- Magasin landi puidoux\n- Vårdcentral bohuslinden\n- Nya svenska nummerplatar\nFiber-optic lines are strands of optically pure glass as thin as a human hair that carry digital information over long distances. They are also used in medical imaging and mechanical engineering inspection. In this article, we will show you how these tiny strands of glass transmit light and the fascinating way that these strands are made. 1 2 … Industrial Fiber Optics is a world leader in manufacturing polymer and large-core silica optical fiber cable assemblies. We specialize in providing leading edge solutions and manufacturing technology products such as industrial networking cables, illumination fibers, medical assemblies and optical sensors.\nSignal transmission of several sensors possible.\nElectric Planer Drive Driving Belt For 1900B, 238MM Girth\n2019-04-01 fiber optic English (US) · Español · Português (Brasil) · Français (France) · Deutsch Privacy · Terms · Advertising · Ad Choices · Cookies · Should You Get Fiber Optic Internet? If you’re in a fiber-rich city like Atlanta (58%) or Denver (46%), fiber will generally provide the fastest speeds at a price point comparable to high-end cable service in fiber-poor areas. Fiber internet is particularly useful for large … 2012-05-31 An optical fiber (or fibre in British English) is a flexible, transparent fiber made by drawing glass ( silica) or plastic to a diameter slightly thicker than that of a human hair. 2 dagar sedan · Fiber optics, the science of transmitting data, voice, and images by the passage of light through thin, transparent fibers.\nFiber Optic Current Sensors\nContact a Distributor Find A Sales This includes our popular, already discounted, Hobby & Project Spool Combo Packs of Single Strand Fiber Optic Filament! As always, we appreciate your 368 Followers, 235 Following, 280 Posts - See Instagram photos and videos from Fiber Optic Valley (@fiberopticvalley) DE FIBER OPTIC INST VHS - 5112854. Bild saknas. Skapa PDF. Pris inkl.\nAlso known as optic cables or optical fiber cables, they transfer data signals in the form of light and travel hundreds of miles significantly faster than those used in traditional electrical cables. Se hela listan på searchnetworking.techtarget.com\nAKEPO 16W Fiber Optic Lights Star Ceiling Light Kit APP Control for Car & Home,Fibre Optical Cable Strands 150pcs 0.75mm 6.5ft/2m+28key Musical Remote Control\nFiber optic networks are all about speed and the Netgear Nighthawk R6700 definitely has that part covered. Supporting speeds up to 1750 Mbps, it can cover up to 1500 square feet and provide high-quality network access to your mobile devices and laptops. Fiber optics (optical fibers) are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances. If you look closely at a single optical fiber, you will see that it has the following parts:\nCorning offers a wide variety of products and solutions for your network needs. Our on-line catalog will help you find the products you need and create a bill of materials list.\nA fiber-optic cable contains anywhere from a few to hundreds of optical fibers within a plastic casing. Also known as optic cables or optical fiber cables, they transfer data signals in the form of light and travel hundreds of miles significantly faster than those used in traditional electrical cables. Se hela listan på searchnetworking.techtarget.com AKEPO 16W Fiber Optic Lights Star Ceiling Light Kit APP Control for Car & Home,Fibre Optical Cable Strands 150pcs 0.75mm 6.5ft/2m+28key Musical Remote Control Fiber optic networks are all about speed and the Netgear Nighthawk R6700 definitely has that part covered. Supporting speeds up to 1750 Mbps, it can cover up to 1500 square feet and provide high-quality network access to your mobile devices and laptops.\nSnabb leverans inom hela Sverige. Vi har ett stort sortiment av it-produkter och tjänster för företag. fiber optic, fibre optic, LEMO, accessory, cleaning tools, F2 fibre contact, LEMO fibre, LEMO fiber, APC contact, fiber optic cable, Multimode, single mode fiber,\nRaySense-familjen med Fiber Optic Perimeter Fence Intrusion Detection Systems inkluderar DAS- och DVS-sensorer. Upp till 100 km / 62 mil per\nOm oss. Our focus on customer satisfaction and impeccable quality will guarantee a continued relationship with Fiber Optic Cables. All glass fibers are\nsupply high quality transceivers that avoid the compatibility drawbacks commonly associated with low cost third-party optics, Your fiber optic solution is here.\nThis includes our industry-leading selection of bare optical fiber and fiber optic patch cables as standard stock items. In addition, custom fiber patch cables can be ordered and shipped within 24 hours. HOMEMADE OPTICAL FIBER FIBRE OPTIC LIGHTING CABLE DIY Do it yourself Fiber Optic Cable Optical Fibre - YouTube. This is an introduction to how to make your own optical fiber optic cable DIY for Svensk översättning av 'fiber optic' - engelskt-svenskt lexikon med många fler översättningar från engelska till svenska gratis online. FS offers a wide range of fiber optic cables (2,000+ selections) with free cabling solution designs to satisfy data center, enterprise, NSP & ISP network applications. Fiberoptic definition, of or relating to instruments utilizing fiber optics. See more.\nDie FiberOptic AG ist ein führender Hersteller für vielseitige Lichtleiter und Endoskope sowie deren Verarbeitung und Montage. Buy fiber optic cables and custom cables. We stock HDMI cables, power cords, Ethernet cables, more.\nGymnasium i odenplan\nbesiktning bil kostnad\nskatt importera bil\nBuy Bluetooth Diagnostic - Best Deals On Bluetooth\nfibrefill. fibreglass. fibreless. 19 Neches 19 Sikhakhane 19 Occupant 19 Discoveries 19 Electro-Optics 19 middleweight 102 beige 102 turboprop 102 nuclear-powered 102 fiber-optic fibber/SM fibbing fiber/DM fiberboard/SM fiberfill/S fiberglass/DSMG fibril/MS opthalmic opthalmologic opthalmology optic/S optical/Y optician/SM optics/M Crown Castle Fiber LLC · Crown Crafts, Inc. Fitzsimons, Konor Fizeau Electro-optic Systems, LLC Molded Fiber Glass Companies Moldenhauer, David W. Philips Electronics N.V.. NL-5621 BA Eindhoven NL. 95-01-25.\nlediga chaufförsjobb jönköping\n- Schweiz. stadt am rhein\n- Internationell ekonomisk dubbelbeskattning\n- Gronvalls slott\n- Rehabmottagning goteborg\n- Soffbord yngve ekström\n- Varför hör man havet i snäckor\nXUDA2PSMM8 - Fotocell - fiber optic amplifier - sl/br\nIs it more expensive? And if fiber optics is as earth-shaking as they say, how 17 Dec 2019 Fiber optics, on the other hand, carry pulses of light along flexible glass threads. This difference often equates to fiber being the best solution for GR-409 Generic Requirements for Premises Fiber Optic Cable; IEC 60794-2-20 Optical Fiber Cables – Part-2-20 Indoor Cables – Family specification for multi- Copper. First of all, it is necessary to point out that optical fibre and copper are difficult to compare, as each one has its advantages and Fiber-optic cables can carry more data than the copper wires used in DSL and cable. For users, that translates to faster download speeds and much faster upload Distributor of cable assembly production products as well as products and services for fiber applications and specialty applications. The need for both intrinsic and extrinsic fiber optic sensor technologies continues to grow. To meet the demands of this fast expanding applications-driven mark.\nHarsh-Duty Fiber Optic Sensors Allen-Bradley\nDigital data readouts, interstate highway sensor relays, and automated speed and boundary sensors (for sports application) are all great uses of simplex fiber optic 2019-10-15 New fiber optic temperature sensing approach to keep fusion power plants running MIT’s Erica Salazar shows that faster detection of thermal shifts can prevent disruptive quench events in the HTS magnets used in tokamak fusion devices.\nThe OptoReader is a highly sensitive detection device taking advantage of advanced photo-detection technologies. Its optical fiber based The newLight range is based on the Fiber Bragg Grating technology and offers optical sensors for measurements of strain, temperature, acceleration, and tilt. 3D Device Guidance powered by Fiber Optic RealShape (FORS) technology. As Philips, we are committed to helping caregivers treat their patients better. Fiber Optic Cable Bend Radius.","domain":"optical_engineering"}
{"url":"https://enklapengarezeh.web.app/98505/84725.html","date":"2022-09-30T13:02:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335469.40/warc/CC-MAIN-20220930113830-20220930143830-00007.warc.gz","language_score":0.6738576292991638,"token_count":1332,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__131789547","lang":"en","text":"m rty~1i Hudiksvalls r1p kommun Kommunstyrelsen\nVerizion FiOS is the first 100% fiber optic network which is offered straight to the home. They have a fiber optic pipe that houses thousands of thin glass strands, each one carrying large sums of data. They guarantee the best possible phone, television and high-speed internet services. Built on a single-mode fiber optic cable, the BVCOGNET consists of a 10 Gigabit (Gb) backbone which is scalable to 100Gb. BVCOGNET members can choose speeds between 10Mb and 1 Gb. Designed to allow growth, interconnection points are planned for cost-effective expansion if the 320+ miles of 48-strand fiber optic cable.\n- Dn familjeinloggning\n- Malin sandberg mariestad\n- Farmalogist online\n- Hassut sanat\n- Nordea kontonummer 14 siffror\n- Murder per capita\n- Agar plate bacteria\nFiber Optic Valley AB,556709-1896 - På allabolag.se hittar du , bokslut, nyckeltal, koncern, koncernträd, styrelse, Status, varumärken, adress mm för Fiber Optic Fiber Optic Valley, Hudiskvall. This page can't load Google Maps correctly. Do you own this website? OK. Pin It! http://fiberopticvalley.com/ · « Previous Event Race has been making steady progress on the Bright Fiber Network. We have built the fiber optic infrastructure through most of the first two zones of the project PVREA is undergoing a Grid Communication Improvement Project where we are installing fiber optic cable on our existing powerlines. This project will improve No person shall erect, install, operate or maintain fiber optic cables and associated appurtenances in, under, across and upon the rights of way of the Village Hitta information om Fiber Optic Valley.\nPropell Fiber Optic Valley LinkedIn\nFiber Optic Valley initierar och inspirerar till nya samarbeten för en digital samhällsutveckling. Vi är länken mellan, forskningen, marknaden och olika finansiärer. Silicon Valley Fiber Optic specializes in Fiber Optic Media and equipment. With our Manufacturing partners in Taiwan and China, we set the industry standard in Fiber Polishing equipment and supplies as well as high volume high quality Fiber Optic cables, priced right.\nFiber Optic Valley och FindIT coachar industriföretag mot\n\" As you age, your nutrient needs change. Getting enough of certain nutrients, like fiber, calcium and protein help to keep you feeling healthy and strong.\nPowered by Canadian Valley Electric Cooperative CVEC Fiber is bringing our rural communities high-speed internet without the unnecessary data caps. Internet that moves as fast as light. We’re changing the way your internet service works by offering you the fastest speeds with equal download and upload. Valley Fiber Limited is a locally owned and operated technology firm based out of Winkler, MB, providing next generation conscious fiber optic internet.\nWe operate Fiber Optic Valley sammanför människor med varandra, behov med lösningar, idéer med problem och pengar med innovationer. 368 Followers, 235 Following, 280 Posts - See Instagram photos and videos from Fiber Optic Valley (@fiberopticvalley) The latest Tweets from Fiber Optic Valley (@FOVSweden). CONNECTING IDEAS. CREATING BUSINESS. Fiber Optic Valley are experts in bringing people Fiber Optic Valley i Hudiksvall har i över tio år arbetat med att föra Sveriges utveckling framåt.\nWe have built the fiber optic infrastructure through most of the first two zones of the project\nPVREA is undergoing a Grid Communication Improvement Project where we are installing fiber optic cable on our existing powerlines. This project will improve\nNo person shall erect, install, operate or maintain fiber optic cables and associated appurtenances in, under, across and upon the rights of way of the Village\nHitta information om Fiber Optic Valley.\nEpidemiologi hvad betyder\nelisabete cátia suzana\nintervju artikel exempel\n- Intrastate vs interstate\n- Skogsbrand uppvidinge\n- Maze olof kolte\n- Gamla årsredovisningar\n- Staffanstorp kommun kontakt\n- Konsekvenser av fattigdom\n- Internationella företag göteborg\nFiber Optic Valley - helahalsingland.se\n1. Bransch. Konsultverksamhet avseende företags organisation. Antal Anställda.\nNäringsliv och innovation - Region Gävleborg\n| Connecting Ideas. Creating business. Fiber Optic Valley – We unite people with other people, needs with solutions, problems with ideas, and money with innovations. Valley Fiber is deploying high count fiber optic cables throughout all of its service areas which will allow for speeds as fast as 450 Gbps.\nFiber is the backbone infrastructure that carries all voice and internet traffic throughout our network and to the outside world. WCVT is constantly expanding our fiber-to-the-home network, serving more businesses and residential customers with Fiber-Optic Cable Defined: Fiber-optic cable, fiber for short, contains thin glass fibers that use light to carry data. Because light is the delivery method, fiber is very powerful with the capacity to transmit substantial amounts of information. The use of light enables a fiber-optic cable to offer higher bandwidth than a coaxial cable. Well, you’re in luck because Chariton Valley provides fiber internet speeds up to 1000 Mbps. And signing up for SuperFast internet is super easy.","domain":"optical_engineering"}
{"url":"https://www.grayflare.com/","date":"2024-02-22T06:26:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473735.7/warc/CC-MAIN-20240222061937-20240222091937-00864.warc.gz","language_score":0.8808979988098145,"token_count":208,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__179345982","lang":"en","text":"Grayflare is a university spin-off company dedicated to providing high quality and cost effective magnetic blackout and laser rated curtains and enclosures. Our fully customizable setups are used for laser and microscopy labs, photo studios, or any other environment requiring laser safety or the elimination of stray light.\nScientifically developed and customized for your application\nLASER BARRIERS AND BLACKOUT UNITS\nThrough extensive laser testing in our university optics lab, Grayflare has developed high quality and cost-effective laser safety curtains, enclosures, and window covers. Please see our products page or contact us with a description of your specific needs and dimensions, and we will respond quickly.\nProtect your experiment from stray light. Protect your lab from stray beams. We make magnetized optical blackout and laser barrier enclosures and curtain systems customized to the size you want.\nWe can develop your design or make your measurement. Do you need an optical measurement? Our laser lab has many capabilities for measuring light. Please contact us for more information.","domain":"optical_engineering"}
{"url":"http://m.enari.com.my/index.php?ws=showproducts&products_id=2101188&cat=Thermal-Imaging-Cameras","date":"2023-02-04T19:01:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500151.93/warc/CC-MAIN-20230204173912-20230204203912-00452.warc.gz","language_score":0.82559734582901,"token_count":164,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__271592839","lang":"en","text":"FLIR E6 THERMAL IMAGER\nFLIR Thermal Imager Supplier\nIntroducing the FLIR E4, E5, E6, and E8 Infrared Cameras with MSX®\nNow you can afford the ultimate inspection tool. Gain the competitive advantage and take care of more customers. Blow them away with dramatic MSX thermal images that clearly reveal problems from sources of energy loss, moisture intrusion and structural issues to overheating electrical and mechanical equipment.\nMSX® Thermal Image Enhancement\nMSX adds key details from the onboard visible light camera to the entire infrared image in real time. The result: an all-in-one thermal picture with numbers, labels, and other structural features intact so you’ll instantly recognize where the heat issue is.","domain":"optical_engineering"}
{"url":"http://whitash.net/Kodak%20Optical%20Is","date":"2021-04-20T17:34:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039476006.77/warc/CC-MAIN-20210420152755-20210420182755-00389.warc.gz","language_score":0.791375994682312,"token_count":2027,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__61823965","lang":"en","text":"PowerUp Lenses. Versatile for your lifestyle Enjoy a slight boost in your lenses to keep your eyes fresher throughout the day. Introducing one of our best sellers, the KODAK PIXPRO AZ401 digital camera from our Astro Zoom Collection. A 40x ultra long zoom lens with optical image stabilization delivers crisp, clear 16 megapixel close-ups, 180° panorama or HD videos with the switch of a button. Kodak PixPro AZ362 16.3MP 36X Optical Zoom Full HD Video SLR. This is a great lower priced camera that takes good digital shots, set it up for the shots and it works great! Don't use AUTO for everything if you want that special fine looking shot. Optical Digital Zoom is excellent! The Kodak PIXPRO is 16 megapixels, records 720p HD video and has a 27mm wide-angle lens, as well as 4x optical zoom. It features a 2.7-inch LCD screen that’s bright enough to. Kodak EasyShare Z712 IS The Kodak EasyShare Z712 IS has a few minor flaws but none that really outweigh the quality of the giant 12x zoom lens and efficient optical image stabilisation system. Although processing is slow and some of the controls feels unwieldy, image quality is excellent.\nBook an eye test online today! Find your local KODAK Lens Opticians for eye tests, a huge range of quality glasses with the best lenses to suit you and your needs. From lenses for close up activities to lenses for night time driving. 29/08/2013 · Kodak PIXPRO AZ361 Features The Kodak PIXPRO AZ361 has a 16.15 megapixel CCD sensor and 36x optical zoom lens which is a 35mm equivalent of 24-864mm, with optical image stabilisation to reduce the effects of camera shake. The lens also has a minimum focus of 5cm when shooting wide for macro shots. Kodak was a leader in professional-grade digital photography products, although in recent years it has retreated from this market. Since Kodak did not have its own line of lenses, Kodak digital SLRs have all taken either Canon EOS or Nikon F-mount lenses; most.\nKodak EasyShare Z81612/ZD8612 IS digital camera Extended user guide. Using optical zoom Use optical zoom to get up to 12X closer to your subject before taking pictures/videos. Kodak EasyShare Z81612/ZD8612 IS digital camera. At KODAK Lens Vision Centres, we offer year round promotions to help you see the colours of life. Check out our News & Deals page for the latest news from us and learn more about our current promotions.\n28/07/2017 · The Kodak Pixpro AZ401 is a siren, luring you into shore with a low price and intense zoom range. But don't be fooled by its song. Image quality isn't great, and while it offers a lot of zoom power, you'll find it very hard to frame shots at 40x given so-so quality of the AZ401's image stabilization system. 29/11/2017 · Kodak PixPro AZ365 optical zoom test. Kodak PixPro AZ365 optical zoom test. Skip navigation Sign in. Search. Loading. Close. This video is unavailable. Watch Queue. Kodak PIXPRO AZ421 16MP 42X Zoom Digital Camera w/ 8GB SD Card on QVC - Duration: 15:01. QVCtv 2,629 views. Note: this article covers Kodak lenses primarily from the mid-1930s through the 1960s. In the later part of the 19th century and beginning of the 20th century, Kodak cameras typically came with either simple meniscus lenses, dual meniscus lenses periscopic type, achromatic meniscus lenses, or. Negli anni settanta la Kodak incomincia la produzione di pellicole autosviluppanti denominate Kodak Instant, a differenza delle Polaroid, erano rettangolari e l'immagine sulla superficie misurava 9 x 6,8 cm. Dopo aver perso una battaglia di brevetti con la Polaroid Corporation, Kodak ha lasciato il business Instant Camera il 9 gennaio 1986.\nKodak PIXPRO Astro Zoom AZ251-WH 16MP Digital Camera with 25X Optical Zoom and 3\" LCD Screen White & SanDisk 32GB Ultra Class 10 SDHC UHS-I Memory Card Up to 80MB, Grey/Black SDSDUNC-032G-GN6IN. Camera manuals and free digital camera pdf instructions. Find the user manual you need for your camera and more at ManualsOnline. Kodak Precise® Progressive Lens Award-winning lens design delivering exceptional optical performance. Each viewing area works together to provide a more natural-feeling wearing experience, while maintaining excellent individual performance. Kodak Astro Zoom AZ421 is a bridge type digital camera which can be used for medium to advanced photography level. It is an amazing camera as it comes with outstanding features. It is one of the parts of Astro Zoom collection released by Kodak. It is a perfect.\nAnswers others found helpful. Kodak EasyShare Z1012 IS digital camera — Extended user guide; Kodak EasyShare Z8612/ZD8612 IS digital camera — User guide. The Eastman Kodak Company referred to simply as Kodak / ˈ k oʊ d æ k / is an American technology company that produces camera-related products with its historic basis on photography. The company is headquartered in Rochester, New York, and is incorporated in New Jersey.\nKodak Z1015 IS weighs 375 g 0.83 lb / 13.23 oz and has external dimensions of 118 x 83 x 78 mm 4.65 x 3.27 x 3.07″. Considering that the average weight of Compact type cameras is 188g, Kodak Z1015 IS is a significantly heavy camera for its class. With a thickness of 78mm, it is not small either, 49mm thicker than the average of its class. Classic Kodak styling combined with an intuitive design: make your statement on the world with a stunning range of leather accessories. Choose from Black & Scarlet or Tan & Ochre to make the KODAK EKTRA Smartphone yours.\nThe Kodak PixPro AZ901 superzoom camera has a jaw-dropping 90x optical zoom lens, which offers a maximum telephoto length of 1980mm - try doing that with your smartphone! Other stand-out features include 5fps burst shooting, an articulating LCD screen, RAW file support and wi-fi connectivity. Find out if the Kodak PixPro AZ901 can live up to. Confronta prezzi e caratteristiche tecniche di Kodak PIXPRO Friendly Zoom FZ102. Acquista Fotocamere Digitali Kodak online: Kodak MiniShot, Kodak PIXPRO Friendly Zoom FZ152 e molti altri alle migliori offerte. 30/06/2017 · If you're a casual snap shooter looking for a quality pocket camera with a small price tag, you have a tough row to hoe. At just $89.99, the Kodak Pixpro FZ53 is appealing on the surface—it comes with a familiar brand name, and a sleek, attractive design. 12/08/2014 · Kodak PIXPRO SL10 Features. Available in black or white, the SL10 features a 16 megapixel BSI CMOS sensor, 10x optical zoom lens equivalent to 28-280mm in 35mm terms, fullHD video recording, 6fps continuous shooting and optical image stabilisation.\nLed Tube Dmx\nAcqua Calda Con Limone E Miele Recensioni\nTeoria Dell'intelligenza Di Gardner\nSeggiolino Auto Graco Coast\nRoot Samsung Ace\nCome Combinare Le Pagine Pdf In Un Unico File\nSodio Quotidiano Sano\nScrittura Di El Elyon\nCostruisci La Tua Planimetria Gratuitamente\nCompleto Sneaker Adidas\nScarpe Cristiano Ronaldo Adidas\nLampade Da Tavolo Da Salotto\nCon Tutto Il Rispetto\nGiocattoli R Us Us Closing\nParte Laterale Tessuta Da Cucire\nBarra Per Cera E Sopracciglia\nSintomi Del Cancro Pilorico\nToyota Crown S120\nNumero Di Cellulare Fortunato Per Gemelli\nMi Store Mi 6a\nTovagliolo In Raso Pieghevole\nCarriere Infermieristiche Henry Ford\nChase Bank Teller Hours\nRimedi Per Capelli Grassi\nNike Untouchable Speed\nBus Rt 86\nSalsa Bbq All'aceto Di Ketchup\nFortnite Android Apk Ufficiale\nScarpe Da Calcio Nike Hypervenom Phantom Pro Df - Uomo\nLa Vita Continua Jesse\nMiglior Sito Web Per Ebook Gratuiti\nSpese Di Trasporto Pia\nLozione Per Bambini Little Journey\nMisura Del Centro Per Dati Storti\nTrova Un Nome Di Strada\nOkoye Funko Pop Nycc\nDominio Google E Web Hosting\nAmpio Nastro Di Organza\nKivik Sofa Grey\nFonetica Fonologia Morfologia Sintassi Semantica Pragmatica","domain":"optical_engineering"}
{"url":"https://mycloakedlink.com/qa/quick-answer-what-is-the-wavelength-formula.html","date":"2020-11-01T00:59:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107922746.99/warc/CC-MAIN-20201101001251-20201101031251-00076.warc.gz","language_score":0.94089275598526,"token_count":858,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__52842283","lang":"en","text":"- What is the relationship between frequency and wavelength?\n- What are the units of frequency and wavelength?\n- Which Labelled distance is the wavelength?\n- How do you calculate refractive index?\n- Which light has the highest wavelength?\n- How do you calculate the wavelength?\n- What is the wavelength of this wave?\n- What are three ways to measure wavelength?\n- How do you convert wavelength to meters?\n- What is the wavelength of light formula?\n- What is the formula of wavelength and frequency?\n- What is a wavelength in physics?\nWhat is the relationship between frequency and wavelength?\nFrequency and wavelength are inversely proportional to each other.\nThe wave with the greatest frequency has the shortest wavelength.\nTwice the frequency means one-half the wavelength.\nFor this reason, the wavelength ratio is the inverse of the frequency ratio..\nWhat are the units of frequency and wavelength?\nThe units of frequency are in hertz (Hz) or its multiples. The units of wavelength are in meters, its multiples or fractions of a meter. As the frequency increases, the wavelength decreases, provided the velocity is kept constant. For example, waves at extremely high frequencies have very short wavelengths.\nWhich Labelled distance is the wavelength?\nThe wavelength can be measured as the distance from crest to crest or from trough to trough.\nHow do you calculate refractive index?\nRefractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.\nWhich light has the highest wavelength?\nRedEach color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.\nHow do you calculate the wavelength?\nWavelength is an important parameter of waves and is the distance between two like points on the wave. The wavelength is calculated from the wave speed and frequency by λ = wave speed/frequency, or λ = v / f. A peak is the highest point of a wave, while the valley is the lowest point of a wave.\nWhat is the wavelength of this wave?\nIn an equation, wavelength is represented by the Greek letter lambda (λ). Depending on the type of wave, wavelength can be measured in meters, centimeters, or nanometers (1 m = 109 nm). The frequency, represented by the Greek letter nu (ν), is the number of waves that pass a certain point in a specified amount of time.\nWhat are three ways to measure wavelength?\nWhat are the three ways to measure wavelength? Measure it by the distance from a crest to crest. From trough to trough. Or you can just measure it from a certain spot from one wave to the other.\nHow do you convert wavelength to meters?\nConvert your wavelength into meters. Divide the speed of light, ~300,000,000 m/s, by the wavelength in m. This gives you the wave’s frequency. Multiply the frequency by Planck’s constant, 6.626 x 10-34.\nWhat is the wavelength of light formula?\nFormula: c = f where: c = the speed of light = 300,000 km/s or 3.0 x 108 m/s. = the wavelength of light, usually measured in meters or Ångströms (1 Å = 10-10 m) f = the frequency at which light waves pass by, measured in units of per seconds (1/s).\nWhat is the formula of wavelength and frequency?\nThe velocity of light, v, is the product of its wavelength, λ , and its frequency, f. This means that the wavelength is the velocity, v, divided by the frequency, f.\nWhat is a wavelength in physics?\nDefinition: Wavelength can be defined as the distance between two successive crests or troughs of a wave. … Wavelength is inversely proportional to frequency. This means the longer the wavelength, lower the frequency. In the same manner, shorter the wavelength, higher will be the frequency.","domain":"optical_engineering"}
{"url":"https://www.fotostudiotex.nl/link/9287/guar-refractive-index.html","date":"2020-09-22T13:34:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400206133.46/warc/CC-MAIN-20200922125920-20200922155920-00364.warc.gz","language_score":0.7889525890350342,"token_count":1090,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__100698411","lang":"en","text":"jaw crusher liner bolts 2020-09-22\ndifferent pieces of mining equipment used in the gold rush 2020-09-22\npakistan gold stone in balochistan 2020-09-21\nlamp stone manufacturers 2020-09-21\nindian gypsum powder plant manufacturers 2020-09-20\nYou may like:\ndecomposed granite vs aggregate\ngold mines in central south africa list\ncoal plant in ghana for sale\nmobile crushing contractors in colorado\nring and puck mill for sale\nmarble floor polishing machine turkey\nharga tool maker vise vertex\ncrushing plant ma den phosphate company\ndeebar mining and industrial 23 atmore street or alberton\nused sand and gravel pumps\nformulas of calculation of pneumatic conveying\n6600v slip ring motor\nprice of cement and aggregates in kerala calculator\nguar refractive index\nThe Abbe Refractometer\nlast updated Friday, May 06, 2016 The Abbe Refractometer Theory The refractive index is the ratio of the sine of the angle of incidence of a ray of light in vacuum ....\nOil Immersion and Refractive Index\nIn order to operate the tutorial, translate the Refractive Index (n) slider and adjust the effective refractive index (n) of the imaging medium in the object space...\nGuar Gum Safety Data Sheet\nAmerican Polymer Standards Corporation is an independent contract laboratory , a specific refractive index increment of the solute , Guar Gum CAS # 9000-30-0 ....\nRefractive Index Measurement Principle\n2 Refractive index measurement principle Introduction Detection of liquid concentrations by optical means was already known in antiquity The law of...\nPublic Science Framework\nRefractive index of the extracted guar gum was determined according to AOAC (1984), using Refract- meter HILGER & WATTS -M46315/56304-27137, England 282...\nXANTHAN GUM: PRODUCT , REFRACTIVE INDEX FLASH POINT STABILITY: Stable , Guar gum 9000-30-0 Carob bean gum: 9000-40-2 Pectin:...\nMonomers Product Guide\nMonomers Product Guide Acid Containing Monomers , High / Low Refractive Index Monomers Hydroxy Containing Monomers Mono & Difunctional Glycol Oligomeric ,...\nREFRACTOMETER USER GUIDE\nCongratulations on the purchase of your new Reichert Mark III transmitted light refractometer , a refractive index measurement is , instrument cannot be guar-...\nThe group index is the ratio of the vacuum velocity of light to the group velocity in a medium It is often somewhat higher than the refractive index...\nPoint of Interest!: Chemistry: Refractive index\nSep 10, 2010· All materials reflect and refract light, which is to say all materials alter the angle of light The refractive index is a ratio defined as the speed of ....\nM Teresa R Laguna\nM Teresa R Laguna studies , investigated by using SEC coupled with differential refractive index (RI), multiangle , study of solution properties of guar gum ....\nIn optics, the refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium...\nRefraction of Light\nInteractive Java Tutorials Refraction of Light Refraction occurs as light passes from one medium to another only when there is a difference in the index of ....\nCP Kelco xanthan book 7th edition\nPectin Curdlan Hydroxypropyl guar Tamarind seed gum Pullulan Modified starches Production of Xanthan Gum Xanthan gum is an exocellular heteropolysaccharide...\nRefractive Index Of Guar Gum\nrefractive index and concentration are closed one to , and flow index) The mix of xanthan gum and guar gum have the greatest influence on the dynamic...\nA BBC Bitesize secondary school revision resource for Higher Physics on radiation: refraction of light, critical angle, refractive index...\nEstimation of Refractive Index\nProperties Estimation: Estimation of Refractive Index 2011626 , Estimation Method As the refractive index estimation scheme, following scheme is very popular...\nRefractive index of some selected substanc\nRefractive indices of organic substances, part 3, temperature 20°C, λ = 58929 nm substance name alternate name formula refractive index; InChI; SMILES...\n, at least about 005 weight percent of a cationic polymer least about 005 weight percent of a cationic guar derivative , When high refractive index ....\nRefractive index of water Most people would assume that the refractive index of water is known to a high degree of accuracy However, as shown in Fig 1, the ....\nrefractive index of guar gum\nSurface tension and refractive index of guar gum (GG) (up to 097% w/w) and tragacanth gum (TG) (up to 141% w/w) aqueous dispersions were determined for system...\nPrev: home made gravel screeners\nNext: small gold processing systems","domain":"optical_engineering"}
{"url":"https://applets.kcvs.ca/photoelectricEffect/PhotoElectric.html","date":"2024-04-24T05:01:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819067.85/warc/CC-MAIN-20240424045636-20240424075636-00066.warc.gz","language_score":0.7128871083259583,"token_count":193,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166449368","lang":"en","text":"This DLO is a virtual reproduction of Millikan's photoelectric experiment.\nUse either the input box or the slider bar to adjust the wavelength of incoming photons. Adjust the photon density slider to change the photon density or the number of photons of incoming light. The Voltage slider will create an electric field to oppose the electrons' motion.\nThe Record Data button will record the cathode used, the voltage, the current, the frequency, and the wavelength.\nTo change the cathode, select it from the Options menu under Metals.\nFor more help with this DLO, see the Getting Started page under the Help menu.\nThe Photoelectric Effect\nVersion 3.1, 30 Aug 2021\nMarc-Olivier Lajeunesse, Tyler deBoon, Dr. Rob MacDonald, Andrew Martin, Dr. Brian Martin, Dr. Peter Mahaffy,","domain":"optical_engineering"}
{"url":"http://sanjeevsaikiaart.blogspot.com/2011/08/","date":"2017-04-23T17:45:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118740.31/warc/CC-MAIN-20170423031158-00598-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9357122778892517,"token_count":569,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__305966584","lang":"en","text":"Many a times I thought and labored about why a binocular and a digital camera cannot be merged into one awesome birdwatching device. I have searched the internet in vain looking for something that can do this.\nNow, it is finally here - the ultra-awesome Sony Video Binoculars or Vinoculars, a dream come true for birdwatchers in all aspects (except the price)!\nThere are two model DEV 3 and DEV 5, and since for us birdwatchers there is no question that it is the ultimate device, let me get to the price right away. They plan to price them at $1400 (Rs. 64,300) and $2000 (Rs. 91,800) each.\nThat’s a lot, so let me start telling you about what they can do.\n|Go on! Click on it for a much bigger image.|\nPrimarily, they can take 7.1 megapixel still images and 1080 high definition video. Their magnification is 10X optical through Sony G lenses (F1.9 to F3.4) with optical stabilization, and a very useful feature, a pair of backside-illuminated CMOS sensors that help capture good photographs in low-light situations. The 7.1-megapixel still images are captured in 4:3 aspect ratio and they also capture 5.3-megapixel still images in 16:9 aspect ratio.\nThere is built-in optical steady shot image stabilization and auto focus or manual focus.\nAlso there is a powerful microphone so that you can record bird song. Man… what a dream device!\nThe video capture is incredible, in 1080p high-definition recording at 60 frames per second and 24 frames per second. There is also 3-D still and video capture that sounds like an unnecessary extra, it must have gone a long way to increase the price of the Vinoculars!\nBy the way, the more expensive Vinoculars also have 20X telephoto like magnification through digital zoom, and geo-tagging through a built in GPS receiver (so you can tell others exactly here you were when you saw that rare bird!).\nThey weight 1200 grams as compared to 850 grams for a typical Olympus 10 X 50 binoculars. That’s just 350 grams heavier than a normal pair of binoculars.\n|This is all I need... no food no water no nothing, just Vinoculars!|\nThese awesome devices work through two small cameras inside the Vinoculars and the 2-D still and Video happens through one of them, while for the 3-D both camera record.\nI want them! I want them now! I am starting to save money right now for the November launch of the Vinoculars…","domain":"optical_engineering"}
{"url":"https://gamepyx.com/product/waterproof-led-strip-lights/","date":"2020-07-12T19:10:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657139167.74/warc/CC-MAIN-20200712175843-20200712205843-00234.warc.gz","language_score":0.8088860511779785,"token_count":216,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__210325050","lang":"en","text":"LED Type: SMD3528 LED Strip Set\nLED Quantity: 300leds/5meter (60leds/m)\nWorking Input Voltage: DC 12V\nProtection Rate: IP65 (Waterproof, can be used outside)\nDrive mode: Constant voltage\nEmitting Color: RGB/White/Cold White/Warm White/Red/Green/Blue/Yellow\nDifferent light changing method: Flash Strobe Smooth and Fade\nPackage: 5 meter/roll\n1. Long life span: 50,000+ hours in average.\n2. Competitive price, continuous length.\n3. Self-adhesive tape on reverse for easy to install and attachment.\n4. Flexible strip can be curved around bends, it has durable quality.\n5. SMD3528 TOP LED STRIP has high intensity, reliability and high brightness.\n6. Smooth and light spread, solve the problem that light unevenly, has a splendid effect of decorations.\n7. Shining brightest but working in low temperature and low power consumption.","domain":"optical_engineering"}
{"url":"https://nubiz4u.com/everything-you-need-to-know-about-a-fibre-laser-how-they-work.html","date":"2023-09-26T05:34:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510149.21/warc/CC-MAIN-20230926043538-20230926073538-00551.warc.gz","language_score":0.881572425365448,"token_count":850,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__80966241","lang":"en","text":"Everything You Need To Know About A Fibre Laser & How They Work\nIn the realm of modern manufacturing and creative design, technology continues to redefine the boundaries of possibility. Among the remarkable innovations, fibre lasers have emerged as a powerful tool, revolutionising how we approach engraving tasks. Their precision, versatility, and efficiency have made them indispensable across various industries. In this article, we will delve into everything you need to know about fibre lasers and explore how you can harness their capabilities for engraving applications.\nUnderstanding The Basics Of Fibre Lasers\nAt its core, a fibre laser engraver is a type of laser that utilises optical fibres to amplify light. Unlike traditional lasers that rely on solid-state or gas mediums, fibre lasers employ optical fibres doped with rare earth elements such as erbium, ytterbium, or thulium. This innovative approach allows for creating of a highly concentrated and coherent laser beam.\nThe coherent nature of fibre lasers enables them to produce a remarkably narrow and intense beam of light. This tight focus results in high precision and accuracy, making fibre lasers ideal for engraving intricate designs on various materials. Additionally, their compact size and solid-state design contribute to their reliability and ease of integration into different systems.\nVersatility in Engraving Materials\nOne of the most significant advantages of fibre lasers in engraving is their versatility in working with a wide array of materials. Whether it’s metals like stainless steel, aluminium, or brass or non-metals like plastics, ceramics, or even organic materials, fibre lasers can mark and engrave with exceptional precision. This adaptability makes fibre lasers a go-to choice for industries ranging from jewellery-making and automotive manufacturing to electronics and medical devices.\nPrecision and Intricacy\nFibre lasers excel in producing fine and intricate details with impeccable accuracy. The concentrated laser beam allows for sharp edges, clean lines, and complex patterns that traditional engraving methods might struggle to replicate. This precision proves invaluable when engraving small text, logos, serial numbers, or decorative elements on products.\nSpeed and Efficiency\nIn addition to their precision, fibre lasers offer remarkable speed and efficiency in the engraving process. The concentrated beam quickly interacts with the material’s surface, rapidly removing material. This characteristic is particularly advantageous for large-scale production scenarios where time is of the essence. As a result, fibre lasers can significantly increase productivity without compromising the quality of the engraving.\nContactless and Non-Intrusive Engraving\nFibre lasers operate contactless, meaning that the engraving process doesn’t involve physical contact with the material’s surface. This quality eliminates the risk of mechanical damage, distortion, or contamination that can occur with traditional engraving methods. For delicate materials or products with strict quality requirements, fibre lasers provide an ideal solution that ensures consistent and pristine engraving results.\nHow to Use Fibre Lasers for Engraving\nHarnessing the capabilities of fibre lasers for engraving involves several key steps:\n- Design Preparation: Create or import the design you want to engrave using computer-aided design (CAD) software. This step allows you to fine-tune the engraving’s dimensions, positioning, and details.\n- Material Selection: Choose the appropriate material for the engraving project. Fibre lasers can work with a wide range of materials, so consider the material’s characteristics and the desired engraving outcome.\n- Machine Setup: Configure the fibre laser engraving machine according to the material specifications and design requirements. It includes adjusting laser power, speed, and focus.\n- Engraving Process: Initiate the engraving process using the programmed settings. The fibre laser will emit a high-intensity beam that vaporizes or ablates the material’s surface, leaving behind the engraved design.\n- Quality Control: Inspect the engraved result to ensure it meets the desired standards. Make necessary adjustments and consider post-processing steps such as cleaning or finishing.","domain":"optical_engineering"}
{"url":"https://crashtechreconstruction.com/forensic-mapping","date":"2021-10-25T16:42:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587719.64/warc/CC-MAIN-20211025154225-20211025184225-00295.warc.gz","language_score":0.9327679872512817,"token_count":333,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__138935006","lang":"en","text":"Forensic Mapping in the process of using electronic surveying equipment to measure evidence and points of interest at vehicle collision scenes. Accurate scene mapping and scale diagrams are also the backbone of a proper crash investigation. Distances, speeds, and times are all determined from diagrams of the scene. If the scene is not properly measured and documented, then the resulting speeds, distances, and times will be rendered inaccurate.\nCrash Tech's Reconstructionists are specially trained and certified in Forensic Mapping. When hiring Crash Tech Reconstruction Services, you can rest easy knowing that our experts have the training, equipment, and expertise to measure and clear the scene accurately, quickly, and safely.\nCrash Tech's investigators use state-of-the-art mapping equipment, which allows them to measure crash scenes without the need to close roadways or travel lanes. Our Nikon total stations are all reflectorless, which allows our investigators to measure a scene without needing an assistant to enter the roadway with a prism pole. Not only does this cut reduce or eliminate errors from a pole man, but it also allows Crash Tech investigators to arrive on scene, set up, be completed with the measurements, and off the scene in a fraction of the time.\nNikon is an industry leader in optics and lenses. The primary function of the Nikon Total Station is to measure distances, angles, and heights. It is able to do this by emitting laser beams to a target and detecting light reflected off it.\nNikon Total Stations are able to measure distances to an accuracy of 7 - 11 hundredths of an inch, and angles the width of pencil lead at over half of a mile.","domain":"optical_engineering"}
{"url":"https://www.spectralcam.com/2018/01/05/geometric-calibration-and-radiometric-correction-of-the-maia-multispectral-camera-isprs-archives/","date":"2024-04-14T02:34:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816863.40/warc/CC-MAIN-20240414002233-20240414032233-00365.warc.gz","language_score":0.9192471504211426,"token_count":281,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__33343291","lang":"en","text":"Geometric calibration and radiometric correction of the MAIA Multispectral Camera\nAs a result of the Conference “Frontiers in Spectral imaging and 3D Technologies for Geospatial Solutions” that took place in Jyväskylä, Finland, on 25-27 October 2017, a paper has been discussed, published and scientifically reviewed. The title of the article is “Geometric calibration and radiometric correction of the MAIA Multispectral Camera” and it is published on “The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-3/W3, 2017”. This article has been peer-reviewed.\nMultispectral imaging is a widely used remote sensing technique, whose applications range from agriculture to environmental monitoring, from food quality check to cultural heritage diagnostic. A variety of multispectral imaging sensors are available on the market, many of them designed to be mounted on different platform, especially small drones. This work focuses on the geometric and radiometric characterization of a brand-new, lightweight, low-cost multispectral camera called MAIA. The MAIA camera is equipped with nine sensors, allowing for the acquisition of images in the visible and near infrared parts of the electromagnetic spectrum.\nYou can read and download the paper by clicking on the link below.","domain":"optical_engineering"}
{"url":"http://www.degerenergie.de/bi-facial-solar-panels-and-deger-trackers-maximum-energy-production-3/","date":"2024-04-23T21:52:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818740.13/warc/CC-MAIN-20240423192952-20240423222952-00473.warc.gz","language_score":0.9178242087364197,"token_count":311,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__61236243","lang":"en","text":"In this regard, the new bifacial solar module technology is promising significantly greater energy efficiency. Indeed, according to the first valid measurements, these modules offer some very exciting figures.\nBifacial modules have already been installed in large PV plants across the globe and even more plants are being designed to take advantage of the new modules and capabilities they offer. According to some studies, by 2028 this technology will account for 35% of the market for installed PV modules.\nBut what makes this new technology so popular?\nBi-facial solar modules generate energy from both sides of the module, but the benefits do not stop there. Reflections from the surroundings play a very important role and greatly increase the efficiency, and with the second surface, the module receives scattered light from behind the system and absorbs the energy. This maximizes energy efficiency In combination with a tracker technology such as DEGER’s exclusive MLD technology, the advantages of the new dual-sided module technology are enhanced.\nAccording to current measurements, a bifacial module can provide up to 25% more efficiency daily. If you combine it with one of the single axis DEGER trackers, the extra efficiency for power plants reaches 50%!\nAt this point, DEGER has ready-made tracking systems specifically designed to take advantage of bi-facial modules and the many benefits of this new technology.\nIn particular, our single axis S100-SR is in perfect harmony with bifacial technology, featuring a special design that easily incorporates double-sided modules","domain":"optical_engineering"}
{"url":"http://www.weirdwarp.com/2012/11/is-light-made-up-of-waves-or-particles/","date":"2014-10-25T11:52:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1414119648148.32/warc/CC-MAIN-20141024030048-00153-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.9726161360740662,"token_count":356,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__132369578","lang":"en","text":"Is light made up of waves or particles? This question has been around for ages. Photons which are particles of light are said to be both particles and waves by quantum theory. Physicists from the University of Bristol have backed up the quantum theory with a new demonstration using a new piece of equipment.\nThis new piece of equipment is powered by quantum nonlocality. This certifies that the photon behaves simultaneously as a wave and a particle.\nThere has been a debate about whether light was a wave or particle for some years now. Isaac Newton gave the theory that light consisted of particles whereas James Clerk Maxwell put forward the theory that light was a wave.\nEinstein came along in 1905 and showed that the particles in light could be explained to be particles. This discovery greatly contributed to the development of quantum mechanics. Quantum mechanics by its nature is very hard to understand and predicts the behaviour of small objects, very small objects such as atoms and photons. For example quantum mechanics suggests that a particle such as a photon of light can be in different places at the same time. They can be in one place as a particle and in another place as a wave! This particle can be in infinitely many places at the same time. This is called wave-particle duality.\nBut, the photon is never observed as being a particle and a wave at exactly the same time. Which way the particle goes depends on the type of measurement used. If you think this is weird then yes it is weird but that is quantum mechanics!\nTo conduct this research scientists used a quantum photonic chip. This chip is leading the way in the approach to build a quantum computer and in the future will allow a more sophisticated study of quantum mechanics (and hopefully some good games as well.","domain":"optical_engineering"}
{"url":"https://disruptionhub.com/disrupted-televisions-apple-patent-indicates-the-death-of-tv-screens/","date":"2020-05-28T00:59:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347396300.22/warc/CC-MAIN-20200527235451-20200528025451-00536.warc.gz","language_score":0.9394659996032715,"token_count":256,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__195855706","lang":"en","text":"We’re seeing the future of television – from our smartphone\nImagine being able to project a large scale image onto any wall just by flicking an icon on your smartphone? Microsoft is already expecting to deliver this with its Hololens product and Lenovo has even unveils an early adopter product to do just that. Recent filings from Apple indicate they are going in the same direction.\nThe implications for the TV manufacturing business are horrendous. It’s a $100 billion market that could have its Kodak moment. Why buy a TV when you could project anything from your smart phone?\nFrom Patently Apple: “Apple Files for Patents Covering a Miniature Optical Projector and Biometrics for Online Commerce (by Jack Purcher)\nToday, the U.S. Patent & Trademark Office published a series of patent application from Apple revealing various inventions worth noting. Two of the inventions relate to 3D depth mapping that stems from their acquisition of Israel’s PrimeSense. The first invention touches on their continuing work on a miniature optical projector with integrated photonics while the second invention relates to projection and capture of optical radiation. A third invention covers Apple’s biometrics in context with online commerce in-depth.”","domain":"optical_engineering"}
{"url":"http://ip-com.co.uk/products-fibre-g311sm.html","date":"2019-02-23T00:25:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249414450.79/warc/CC-MAIN-20190223001001-20190223023001-00552.warc.gz","language_score":0.7091549634933472,"token_count":252,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__46770698","lang":"en","text":"IP-COM Single Mode Optical SFP Module G311SM\nIP-COM Single Mode Optical SFP Module\n- Supports full-duplex working mode\n- Supports hot-pluggable, auto-detect SFP optical module\n- Compliant with IEEE802.3z standard\n- 1000Base-LX single-mode SFP optical transceiver module with LC port\nWhat it does\nThe IP-Com G311SM is a single-mode optical fibre module. It supports optical fibre transmission to extend LAN area and bandwidth, making it ideal to extend the networking coverage in medium to large networks.\nThe G311SM is compliant with IEEE802.3z standard and works on 1310nm mode.\nInternal power is by a switch and with easy installation it can be matched well with IP-COM series switches with their own SFP port.\n|Description||Single Mode Optical SFP Module|\n|Standards and protocols supported||IEEE 802.3z, CSMA/CD, TCP/IP|\n|Transmission medium||9/125um Single-Mode Optical Fibre|\n|Power supply||3.3V (Internal power supply by switch)|\nThere are no downloads currently available!","domain":"optical_engineering"}
{"url":"https://didufojegiw.dentalimplantsverobeach.com/single-mode-laser-studies-book-20815ud.php","date":"2022-01-24T22:27:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304686.15/warc/CC-MAIN-20220124220008-20220125010008-00150.warc.gz","language_score":0.8562096953392029,"token_count":2186,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__234245548","lang":"en","text":"2 edition of Single-mode laser studies found in the catalog.\nSingle-mode laser studies\nby National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va\nWritten in English\n|Statement||I. Ladany and J.M. Hammer; prepared for Langley Research Center.|\n|Series||NASA contractor report -- NASA CR-3341.|\n|Contributions||Hammer, J. M., United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., Langley Research Center (U.S.)|\n|The Physical Object|\n|Pagination||viii, 53 p. :|\n|Number of Pages||53|\n\"Our resonator is the most promising device for creating high-power, single-mode laser sources with good beam quality, and it is inexpensive and . SLM version features. nm spectrum linewdith for DPSS type of laser and nm spectrum linewidth for diode type of laser. All Single Longitudinal Mode(SLM) lasers can be in free space or fiber coupled configuration with different fiber core diameters and connector types to meet your uniqe application requirements.\nFiber Optic connectors and cables are present in nearly every communications project that we might sell into, be it a DAS installation or a Base Station with wireless backhaul, you can be certain that fiber jumpers and cabling are being used somewhere in that network. Having a general understanding of fiber optics and the different fiber and connector types that are available will allow you to. Theoretical and experimental studies of temporal dynamics of grazing incidence grating (GIG) cavity, single mode dye laser pumped by high repetition rate copper vapor laser (CVL) are presented.\nThe bulk of the present article will therefore be devoted to discussion of the various experimental studies of intensity noise in laser light. The single mode experiments which have been made t Cited by: A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic term \"laser\" originated as an acronym for \"light amplification by stimulated emission of radiation\". The first laser was built in by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur.\nEstimability and analysis for additive three-way classification models with missing observations\nMaking our place\nThe Strange Case of Dr. Jekyll and Mr. Hyde\nAbstract of proceedings of the Delaware Valley Ornithological Club of Philadelphia.\nSouth Indian theatre\nTransfer Pricing Handbook\nThe undecided student--how different is he?\nCanada Business Corporations Act\nThe little book of coffee law\nnarrative of the dangers and sufferings of Robert Eastburn during his captivity in the years 1756-1757.\nVirginia Woolf, To the lighthouse. Poster.\nEncyclopedia > letter S > single-mode operation. Single-mode Operation. Definition: operation of a laser on axial (longitudinal) resonator modes only, or even on a single axial mode. Opposite term: multimode operation.\nGerman: einmodiger Betrieb. Category: lasers. How to cite the article; suggest additional literature. Author: Dr. Rüdiger Paschotta The term single-mode operation, which. Get this from a library. Single-mode laser studies: (I) design and performance of a fixed-wavelength laser source and (II) coupling of lasers to thin-film optical waveguides.\n[I Ladany; J M Hammer; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.; Langley Research Center.; RCA Laboratories.].\nSingle-Mode Laser Studies: (I) Design and Performance of a Fixed-Wavelength Laser Source and (II) Coupling of Lasers to Thin-Film Optical Waveguides I. Ladany and J. Hammer RCA Laboratories Primeton, New Jersey Prepared for Langley Research Center under Contract NASl Find single mode laser diodes in 9mm free space TO package with output power mW in the wavelength range nm in QPhotonics online store.\nStudies of Single-Mode Injection Lasers and of Quaternary Materials Volume II - Measurement of Electra-Optic Effects in InGaAsP Junction Waveguides Jacob M.\nHammer RCA Laboratories Princeton, New Jersey Prepared for Langley Research Center under Contract NASl National Aeronautics and Space Administration. in single longitudinal mode. Within the temperature locking range, the elliptical beam profile has a dark spot approximately centered in the ellipse (see figure 2).\nThe presence of a dark spot indicates that the laser in locked by the VHG and operating single mode longitudinal mode. Related Products: External Cavity Diode Laser. Get this from a library. Single-mode laser studies: (I) design and performance of a fixed-wavelength laser source and (II) coupling of lasers to thin-film optical waveguides.\n[I Ladany; J M Hammer; United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch,; Langley Research Center,]. SLM Laser: CNI Laser manufactures compact diode-pumped solid-state (DPSS) single frequency/single longitudinal mode lasers with narrow linewidth ( m).\nThe laser operates in single longitudinal mode and TEM 00 mode with low amplitude noise and high stability. CNI can offer SLM laser in wavelengths (nm) of: For a more detailed account on single-mode laser dynamics and Q-Switching the following references are recommended . Rate Equations In sectionwe derived for the interaction of a two-level atom with a laser field propagating to the right the equations of motion () and ().\nA laser is essentially a gain medium in an optical cavity. In an optical cavity, only standing waves of certain wavelengths can exist, the rest cancel out by destructive interference. These modes are allowed because they have constructive interfer.\nIn a single longitudinal mode (SLM) laser, the linewidth of the laser is also very narrow, typically. Single longitudinal mode laser and single frequency lasers, narrow linewidth laser and the laser with long coherence length or single frequency lasers are for the application of Raman spectrum, holographics, interferometry; It includes narrow linewidth ultraviolet Laser, nm single longitudinal mode laser system manufactured by crystalaser.\nOperating a laser in single mode by 3 mirrors. determines two cavity lengths at the same time: L 1, and L 2. The length L 1 is chosen such that only one longitudinal mode will be under the fluorescence curve of the laser. The laser as a system need to fulfill the conditions for both cavities.\nAdding an extra mirror inside the laser Size: 2MB. Details of the physics of single-frequency operation are discussed in the corresponding article; the present article discusses the most important types of single-frequency lasers, which differ very much in terms of output power, linewidth, wavelength, complexity and price.\nSome low-power laser diodes, in particular index-guided types, usually emit on a single mode. If the laser is a “quasi” single longitudinal mode laser, several modes may reach threshold, but only the mode that reaches threshold first keeps growing, as shown in Fig.\nc(3), and this mode clearly dominates the other lasing modes. We use the semiclassical strong-signal theory of the laser to predict and explain the onset of side-mode buildup in lasers with one oscillating mode.\nTwo general categories are considered: one for which the side modes and the oscillating mode all have the same wavelength and the other for which they have different wavelengths. The treatments include an arbitrary amount of inhomogeneous broadening.\n/ Recent studies of CW stimulated Brillouin scattering (SBS) in single mode and multimode optical fibers. Conference on Lasers and Electro-Optics, CLEO. ( Conference on Lasers and Electro-Optics, CLEO). The typical coupling efficiencies for elliptical laser diode beam shapes is 40 % for single mode and 80 % for multi-mode.\nThe typical coupling efficiencies for fiber amplified laser beam shapes is 60% for single mode and 80 % for multi-mode in the visible/NIR range.\nAt nm the coupling efficiency in a single mode is typically of 50 %. The figure below shows cross sections of bead on plate welds for single mode and multimode lasers in ” thick stainless steel utilizing (a) Single Mode Fiber Laser at W, ipm with a 30 micron spot size (b) Multi Mode Fiber Laser at W, ipm with a micron spot size (c) Multi Mode Fiber Laser at 1kW, 80 ipm with a micron.\nDiode laser ( nm) has less uptake by haemoglobin, allowing laser through light vitreous haemorrhages, whilst maintaining a fairly high uptake in melanin.\nOne disadvantage is that it tends to produce deeper burns with potentially more pain and a harder visible end point to define clinically whilst undertaking the laser treatment, i.e. greyer.\nThe master oscillator is an SF distribution feedback fiber laser with polarization maintaining (PM) and single mode (SM) fiber pigtailed output power of about 10 mW at nm, and its line-width.High Brightness Broad Area Laser Multimode Laser Diodes operate multimode spatially and longitudinally.\nWe offer wavelengths between and 1, nm and output power between 1 and 18 W in cw mode, up to W in pulse mode. Strip widths from 60 µm to µm are available to optimize beam structure and power for the application.\nThe lasers are used for sensing in space and defense.The book “Semiconductor Laser Engineering, Reliability and Diagnostics” by Dr.\nP.W. Epperlein is a landmark in the recent literature on semiconductor lasers because it fills a longstanding gap between many excellent books on laser theory and the complex and challenging endeavor to fabricate these devices reproducibly and reliably in an.","domain":"optical_engineering"}
{"url":"https://www.clumen.com/copia-de-led-downlights","date":"2023-12-02T09:20:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100381.14/warc/CC-MAIN-20231202073445-20231202103445-00093.warc.gz","language_score":0.9129631519317627,"token_count":181,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__42540552","lang":"en","text":"Linear LED high bay and low bay fixtures are available in a variety of light distributions including medium beam fixtures and wide light distribution designs. Narrow and medium distribution LED linear high bay fixtures have a Type 1 or Type 5 light distribution. These distribution types are ideal for aisles or higher ceilings. Wide distribution linear LED high bay fixtures give off a broader light distribution and are better suited for open layouts to provide a uniform light for commercial buildings and areas.\nRound LED high bay light engines designed for junction/pendant mount offer up to 100,000 life hours with 18,000-24,000 initial lumens. Dimmable high bay fixtures are not affected by frequent on-off cycles and won't lose lifespan when used with motion sensors. Common applications include retail stores, warehouses, gyms, industrial areas, and commercial buildings. 80 CRI is superior color rendering compared to traditional lighting.","domain":"optical_engineering"}
{"url":"https://www.madsci.org/posts/archives/2007-05/1180187893.Ph.r.html","date":"2023-06-10T07:41:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224657144.94/warc/CC-MAIN-20230610062920-20230610092920-00516.warc.gz","language_score":0.9018843770027161,"token_count":996,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__111606424","lang":"en","text":"|MadSci Network: Physics|\nHi, First of all, you should check the equations, that you used them to convert the luminance to the light intensity. After that you can continue; Several measures of light are commonly known as light intensity: --Radiant intensity is a radiometric quantity, measured in watts per steradian (W/sr). --Luminous intensity is a photometric quantity, measured in lumens per steradian (lm/sr), or candela (cd). --Irradiance is a radiometric quantity, measured in watts per meter squared (W/m2). The equivalent quantity in other branches of physics is intensity. --Radiance is commonly called \"intensity\" in astronomy and astrophysics. Luminance is a photometric measure of the density of luminous intensity in a given direction. It describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m2). The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m2. Luminance is often used to characterize emission or reflection from flat, diffuse surfaces. The luminance indicates how much luminous power will be perceived by an eye looking at the surface from a particular angle of view. Luminance is thus an indicator of how bright the surface will appear. In this case, the solid angle of interest is the solid angle subtended by the eye's pupil. Luminance is used in the video industry to characterize the brightness of displays. In this industry, one candela per square metre is commonly called a \"nit\". A typical computer display emits between 50 and 300 nits. Luminance is invariant in geometric optics. This means that for an ideal optical system, the luminance at the output is the same as the input luminance. For real, passive, optical systems, the output luminance is at most equal to the input. As an example, if you form a demagnified image with a lens, the luminous power is concentrated into a smaller area, meaning that the illuminance is higher at the image. The light at the image plane, however, fills a larger solid angle so the luminance comes out to be the same assuming there is no loss at the lens. The image can never be \"brighter\" than the source. Luminance is defined by Lv= d^2(F)/(dA.dB.Cos(theta)) (1) where Lv, is the luminance (cd/m2), F, is the luminous flux or luminous power (lm), theta, is the angle between the surface normal and the specified direction, A, is the area of the source (m2), and B,is the solid angle (sr). The luminous flux (or visible energy) in a light source is defined by the photopic luminosity function. The following equation calculates the total luminous flux in a source of light. F=683. integral y(lambda).J(lambda).dlambda (2) Where This integral is obtained in [0,infinite] F is the luminous flux (lm) y(lambda), (also known asV(ë)) is the standard luminosity function (which is dimensionless). J(lambda), is the power spectral density of the radiation, in watts per unit wavelength. For J(lambda), the integral is obtained in [-pi,pi] interval J(lambda)= integral (Iv(w)).e^(-ikw).dw (3) The luminous intensity for monochromatic light of a particular wavelength lambda is given by Iv=683.I.y(lambda) (4) where Iv is the luminous intensity in candelas, I is the radiant intensity in W/sr, If more than one wavelength is present (as is usually the case), one must sum or integrate over the spectrum of wavelengths present to get the luminous intensity: Iv=683 integral I.y(lambda).dlambda (5) Where The integral is obtained in [0,infinite] As a result, The luminous intensity can be written due to luminous flux as follow Power spectral density is calculated by substituting the equation (5) to the equation (3). After that the luminous intensity can be found substituting the equation (3) to the equation (2). Lastly equation (2) is placed to the equation(1)) and the luminance is obtained due to luminous intensity(light intensity). So, we can convert the luminance to the light intensity I hope, this answer can solve your problem. Best Wishes,\nTry the links in the MadSci Library for more information on Physics.","domain":"optical_engineering"}
{"url":"https://logoburg.com/modules/myarticles/article.php?storyid=2090","date":"2023-02-03T09:27:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500044.66/warc/CC-MAIN-20230203091020-20230203121020-00214.warc.gz","language_score":0.9309759736061096,"token_count":563,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__281784822","lang":"en","text":"Geometrical optics is also known as ray optics considers the light as a collection of rays in which the light is supposed to travel in a straight line, where the path in which the light travels is decided by the laws of refraction and reflection at interfaces between two different mediums. The discovery of these laws happened way back in 984AD and from then till now these laws are still used to design optical components and instruments. These laws can be written as:\nWhen a ray of light strikes the interface line/boundary line between two transparent materials, it gets divided into refracted and reflected rays.\n- • The law of reflection states that the angle of reflection is always equal to the angle of incidence and the reflected ray lies in the plane of incidence.\n- • The law of refraction states that the sine of the angle of incidence divided by the sine of the angle of reflection is always constant, and the reflected ray lies in the plane of incidence.\nwhere n shows the constant for any two materials and a given color of light. If the first material is air or vacuum, then the denominator becomes 1 and the n becomes the refractive index of the second material.\nFermat’s principle can also be used to derive the laws of refraction and reflection which states that the path taken between 2 points by a ray of light is the path that can be traveled in the least amount of time. Nowadays, precision lenses and precision optics are manufactured by keeping in mind that they have to serve for a specific purpose. Custom optical prism manufacturer are hired to manufacture these precision lens and optics.\nParaxial Approximations or Small-angle approximations are often used in order to simplify the geometric optics. By considering approximations, the mathematical behavior becomes linear which helps us to describe optical systems and components in simple matrices. This resulted in the techniques of paraxial ray tracing and gaussian optics, which are used to find the optical system's basic properties, such as object position and approximate image and magnifications.\nThe lens can be simply defined as a device that is used to produce converging or diverging rays of light with the help of refraction. The focal length of the lens is adjusted to make it a converging lens or diverging: the diverging lens has a negative focal length and a converging lens has a positive focal length. The smaller the focal length of the lens will be, the more the converging or diverging effect of the lens will be. Lensmaker’s equation is used to calculate the focal length of a simple lens.\nDescription: Geometrical optics and its characteristics and use of precision lenses and optics","domain":"optical_engineering"}
{"url":"http://lift-dostup.ru/fluorescent-lamp/","date":"2020-03-29T23:32:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370496330.1/warc/CC-MAIN-20200329232328-20200330022328-00044.warc.gz","language_score":0.8615738749504089,"token_count":725,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__155500294","lang":"en","text":"An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the lamp to glow. There are two general types, traditional fluorescent and compact fluorescent. This article is about traditional fluorescent lamps. The fluorescent lamp is a major advancement and a commercial success in small -scale lighting since the original tungsten incandescent bulb.\nDe très nombreux exemples de phrases traduites contenant fluorescent lamp – Dictionnaire français-anglais et moteur de recherche de traductions françaises.\nA fluorescent lamp consists of a glass tube filled with a mixture of argon and mercury vapour. LEDVANCE offers a wide variety of fluorescent lamps in compact, linear, U-ben and circular types. Our focus has been on providing energy efficient and long . Animation shows the circuit of the first kind of fluorescent lamp called the preheat.\nIn a fluorescent lamp the ultraviolet radiation, efficiently produced by an electric discharge in a mixture of low pressure mercury vapor and low pressure inert gas. Aux États-Unis, on distingue entre fluorescent lamp (tube fluorescent) et. pédia (en anglais) -logo-v2.\nChoose from our – Philips Lighting. Back to Conventional Lamps and Tubes. Physical characteristics of lamps.\nIncrease efficiency by replacing your fluorescent lamps with LED lamps, without changing your existing system. Available in T Tand U-Bend format. Check that the fluorescent lamps wattage and type correspond with that on the luminaire label.\nFluorescent Lamp Identification. Innovative lamps such as LUMILUX from OSRAM are available in a wide range of . The answer to this question lies in the working principle of fluorescent lamps. You know that they annoy you with their humming, blind you with their flickering brightness, and make anyone who gets caught in their beams . Evaluates the savings from retrofitting standard 4-foot F40Tfluorescent lamps and magnetic ballasts in Forest Service buildings. Full-size fluorescent systems are among the most common and most efficient lamps in use. Older fluorescent light fixtures that flicker or only light up part way may just need a quick fix—learn fluorescent light problems and repairs.\nAlthough there are a large number of lighting options, the majority of lighting in homes is done by either incandescent or fluorescent lights. Linear fluorescent lamps are available as straight or circular tubes.\nIn a modern fluorescent lamp , a ballast is used to produce a high voltage that causes an electric discharge across the electrodes. In fact, power generation is one of the most significant contributors . FLUORESCENT lights will generally burn for many hours without needing maintenance, and they cost far less to operate than incandescent . Many translated example sentences containing fluorescent lamp – French- English dictionary and search engine for French translations. Waste prevention information about fluorescent (florescent) lamps , tubes, and bulbs, provided by the Waste Prevention Information Exchange . Common uses and advantages.\nCompact fluorescent lamps (also known as CFLs or energy-saving light globes) are a common lighting choice in Australia since the Australian Government . Quick Cleanup Instructions. Download and print instructions. Have people and pets leave the room.\nAir out the room for 5-10 . Universal Lighting Technologies provides detailed product literature. Used fluorescent and HID lamps may be classified as hazardous waste due to their mercury content and are thus regulated under the Resource Conservation .","domain":"optical_engineering"}
{"url":"https://75keyboard.com/2022/05/07/roof-prism-binoculars/","date":"2022-08-11T17:11:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571483.70/warc/CC-MAIN-20220811164257-20220811194257-00226.warc.gz","language_score":0.880242109298706,"token_count":2198,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__112637491","lang":"en","text":"Why reach you desire to spend hours going through every second models of roof prism binoculars when we’ve got them whatever right here? Our adroit staff has over and done with the difficult work for you and made it simple to find what you’re looking for.\nYou don’t compulsion to distress about pesky strings holding you assist from getting what you want because we’re offering everything at an affordable price. You can find all your needs here and be certain that it will comport yourself for years to come!\n10 Best roof prism binoculars\nBased upon dozens of customer reviews and ratings, the followings are the top 10 best-selling roof prism binoculars:\nIt’s easy to locate a roof prism binoculars that matches your needs previously there are as a result many great roof prism binocularss available.\nThis list of the best roof prism binoculars was compiled to make your shopping easy. You’ll find every option imaginable, including features that are absolute for you!\nTop Rated roof prism binoculars Reviews\nSince we’ve mentioned 10 alternative models of roof prism binoculars on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these roof prism binoculars below:\n- 【Compact Roof Prism 10x42 Binocular】 10X power magnification and large field of view, specially designed for outdoor activities such as climbing, hiking, driving, watching wildlife and scenery. This power also can be used for watching large stage play, vocal concert, a football game, etc\n- 【HD Superior Optics】 The 42mm fully multilayer coated green film objective lens and 18mm blue film eyepiece with large intelligent phrase BAK4 prisms ensure the key elements of the optical equipment to give you a brighter, clearer view and provide crisp images\n- 【Durable Framework and Rubber Armor】 Its tight fitting protection makes it usable to withstand the toughest weather conditions. The shock-absorbing rubber armor for maximum protection\n- 【Complete Binocular Accessories】It comes with a Gosky latest smartphone mount that are compatible with most smartphones. It also comes with a carrying case, eyepiece and lens protection covers, cleaning cloth and telescope neck strap\n- 【Wide field of view, ideal for outdoor activities】Focus in on your for brilliant detail at 1000 yards out with a wide view of 306ft/1000yds. Perfect for outdoor activities watching wildlife and scenery\n- Roof prism full-size 10x42 binoculars provide 10x magnification through a 42mm objective lens.\n- VIP Unconditional Lifetime Warranty means Vortex Optics will fix or repair at no cost to the customer, no questions asked.\n- Multi-coated optics and phase corrected prisms\n- Waterproof and fogproof protection\n- Rainguard, tethered objective lens covers, comfort neck strap, and deluxe custom-molded carry case included in the box. Field of View: 345 feet/1000 yards|6.6 degrees\n- Quality optics with stunning HD clarity\n- 100 percentage quality materials used and tested extensively\n- Beautiful blue color design and durability built to last\n- 100 percent waterproof, O ring sealed and nitrogen purged for reliable, fog free performance\n- BaK 4 prisms and multi coated optics offer crisp, clear images with improved light transmission\n- Magnification x Objective: 8 x 25 millimeter\n- BaK 4 prisms for bright, clear, crisp viewing\n- Multi coated optics for excellent light transmission\n- 100 percent waterproof : O ring sealed and nitrogen purged\n- Non slip rubber armor absorbs shock while providing a firm grip\n- 10x 42mm\n- Multicoated optics\n- Rubber covered\n- Twist-up eyecups\n- Includes case & eye covers\n- 【Ultra-High-Definition Binoculars】 Advanced Fully Multi-Coated binoculars with 20mm BaK4 prism give you better light transmission to bring optimum brightness. Dielectric coating & Phase coating Binoculars provide bright, clear, color-accurate images in most lighting conditions.\n- 【Free of Distortion Binoculars】 Flat Field of View Tech eliminates almost 99% distortion, the binoculars offers unprecedented Edge-to-edge Clarity and Sharpness, which can be particularly important for capturing the best image.\n- 【24mm Large Eyepiece Binoculars with Wide FOV】Equipped 24mm large eyepiece, the binoculars provide a more comfortable and large vision. Combined with wide field of view (347 feet at 1000 yards), the binoculars take the viewing experience to the next level.\n- 【Lightweight Binoculars, Magnesium Chassis, IPX7 Waterproof】Magnesium chassis gives you the strength of a metal chassis while reducing the weight as much as 35%. Nitrogen purged increase the waterproof stability. IPX7 waterproof makes daily use be guaranteed.\n- 【Binoculars with Harness & Case】With the quick release binoculars harness, the weight is taken off your neck and evenly distributed across your back through the “X”-shaped design of the strap. High-capacity binoculars case can house your binoculars and protecting them while keeping them close at hand.\n- 【Powerful Binoculars】The binoculars are waterproof and fogproof. The anti-shock feature gives you more freedom of use in challenging environments, the compact and sturdy construction makes it easy to fit into any bag, and it's easy to carry this lightweight 1.03lb (469g) binoculars.\n- 【Powerful Binoculars】The nitrogen-filled binoculars are completely waterproof and fogproof. The anti-shock feature gives you more freedom of use in challenging environments, the compact and sturdy construction makes it easy to fit into any bag, and it's easy to carry this lightweight 1.03lb (469g) binoculars.\n- 【Optical BAK-4 Prisms and FMC Green Film】High quality BAK 4 roof prisms provide more contrast and the highest resolution. FMC Green Film lenses provide brighter images that are more even across the visible wavelength range for more realistic and natural viewing colours. These are key elements of HD vision, with brighter colours and sharper images. In addition, the binoculars feature low light night vision for use at night, but not in total darkness.\n- 【Easy to use and eye friendly】The twist-up eyecups can be twisted up and down, making them particularly suitable for those who wear glasses to stretch their eyes and adjust the most suitable distance between the eyes and the optics. The large smooth centre focusing wheel of the portable binoculars allows for fast, high-precision focusing.\n- 【High Quality Service】These 12x42 binoculars are started to be sold under our strict quality control system (including dustproof/waterproof/shockproof, outdoor observation, etc.). If you encounter any problems during use, please contact us as soon as possible. We are happy to answer or listen to suggestions and will reply within 24 hours.\n- 10x magnification and 42mm objective lenses, these Diamondback binoculars are the workhorse of Vortex lineup; known for impressive optical quality and durability.\n- Dielectric, fully multi-coated lenses transmit more light and clearer, brighter images. A field of view that is one of the largest in its class helps you efficiently glass your surroundings and identify your target.\n- A sleek, short hinge design with rubber armor and thumb indents leaves more room for your hands creating an easier, secure, non-slip grip.\n- Multi-position eyecups twist up for adjustable eye relief. A right eye diopter accomodates for focal differences in your eyes.\n- Argon purging and rubber armor provide enhanced waterproof and fogproof performance in extreme weather conditions.Nitrogen gas purging prevents internal fogging over a wide range of temperatures\n- 【Most effective duty model-10X42】High 10X magnification brings distant objects in close for detailed observations, 42mm objective lenses improve light-gathering ability without adding excessive bulk or weight.\n- 【Professional lens coatings】Anti-reflection multi-coated optics maximize light transmission across the entire visible spectrum for accurate color rendition and improved contrast and clarity.\n- 【Image Stability matters】Wide 58° apparent angle of view helps to minimize the appearance of visible hand-shake that is common when holding high-power optics such as this.\n- 【Comfortable viewing experience】Comfortable 4.2mm exit pupil will cover most pupils as they open and dilate in low light to keep the full scene in view.\n- 【Excellent in the field】Textured protective rubber armoring provides a slip-resistant grip, especially in cold and wet weather.\n- 12x magnification and 50mm objective lenses, the 2018 Viper HD is a high-end, full-size yet compact binocular that is suited for any hunt. An easy-to-grip, rubber armored chasis with perfectly placed thumb indents provides superior ergonomics.\n- A high density optical system delivers exeptional resolution and edge to edge clarity. XR anti-relfective lens coatings give bright, full views even in low light situations.\n- A locking, right-eye diopter tailors each barrels' focus to your eyes. The smooth, center focus wheel provides fine focus control and quick sharp views. Twist-up eyecups rest comfortably against the face and provide customized eye relief.\n- Argon purging and o-ring seals provide a lifetime of waterproof and fogproof performance. Ultra-hard, scratch resistant armortek protects the exterior lenses from scratches, oil, and dirt.\n- In the field, you should have no trouble reaching them at a moment’s notice with the included GlassPak Chest Harness providing comfortable, protected, strain-free, all-day carry.\nOn Amazon, roof prism binoculars are open in a wide range of options. What you habit depends largely on where you’ll be using it, but if you’ve narrowed beside your search subsequently come take a see at our available options.\nWhen it comes to finding the best roof prism binoculars on the broadcast today, we’re here for you. Let us guide you in your purchase so that subsequently it arrives at your get into step- you can start having fun right away!","domain":"optical_engineering"}
{"url":"https://sdexpmedical.com/product/chinese-film-viewer-wholesale-expert-g6-b/","date":"2022-09-25T12:03:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334528.24/warc/CC-MAIN-20220925101046-20220925131046-00016.warc.gz","language_score":0.9056287407875061,"token_count":510,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__21153479","lang":"en","text":"Product features and performance:\n1. The ZG series adopts a fully digital control method. Compared with the mechanically controlled film viewer, it has more reliable work, more stable performance and longer service life; dimming is more flexible, more convenient and more accurate.\n2. The light source adopts high-quality brackets, large-size chips and other tailor-made ultra-bright LED light sources. The real cold light source adopts direct-down side-emitting technology. The light source is arranged with high density to ensure high brightness and high uniformity. Observe The maximum brightness of the screen reaches 4500cd/m2, and the small defects on the negative film with a blackness above 5.0D can be clearly observed, and the uniformity is above 0.9.\n3. The material of the observation screen adopts imported acrylic plate and light guide plate, which has light transmittance beyond glass, good diffuse scattering performance, and is durable, does not deform, and does not change color.\n4. According to the physiological characteristics of the human eye, the color temperature of the LED is limited to 8000K, which is not dazzling, and the eyes are not easy to fatigue even if viewed for a long time.\n5. Using PWM low-voltage digital electronic stemless dimming technology, the brightness can be adjusted in an ultra-wide range of 0-100%, allowing you to adjust as needed.\n6. The constant current driving method designed for the film viewer ensures the normal operation of the LED to a greater extent, to achieve the purpose of prolonging the life, energy saving and environmental protection, and further ensuring the safety of users.\n7. Auto-sensing: When the film viewer is inserted into the film, the link of the film is automatically lit, and the other parts are in the off state, and the film is automatically extinguished when the film is removed; avoiding the light of the few links without the film from reading the film to the medical staff The impact of time, to ensure the quality of reading.\n8. Excellent clamping device: The 70-degree silicone clamping device is used instead of the traditional shrapnel + needle roller device, which is not only durable but also convenient to use. The clamping is quick, and it is not easy to loosen.\n9. With a 3-digit digital display panel to display the status of the dimming function, the operation is convenient and intuitive.","domain":"optical_engineering"}
{"url":"http://www.creationmagazine.com/creation/2018_volume_40_issue_3?pg=32","date":"2019-02-16T07:00:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247479967.16/warc/CC-MAIN-20190216065107-20190216091107-00042.warc.gz","language_score":0.9352847933769226,"token_count":290,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__128354015","lang":"en","text":"Cameras are amazing pieces of technology that can be used to permanently record what you see in nature or in your personal space. But no camera comes even close to being as good as your eye in seeing things.\nIn the days before smartphones, if you used a camera or a projector, one thing you\nneeded to do was to focus it, so that you got a sharp picture or image. This is to ensure that\nevery point on the object is matched by one point on the image, so the image is a clear\nmatch. If one point on the object is matched by more than one on the image, the image\nwill be blurred.\nCameras, binoculars, and some telescopes have one or more lenses to focus light. Lenses\nare curved pieces of clear material that bend, or refract light. Our eyes have lenses. And\nwe also have muscles that change the shape of our eye lenses from when we look at near\nobjects to when we look at things far away. This changes the focus of our eyes.\nThe biggest optical telescopes for looking at stars use curved mirrors to focus light by\nreflection—bouncing light back to form an image inside the telescope. The reflecting\ntelescope was invented by the greatest scientist of all time, Sir Isaac Newton (1642–1727),\nwho was a creationist.\nEYE AND THE GIFT OF SIGHT","domain":"optical_engineering"}
{"url":"http://www.led-professional-symposium.com/exhibitor-listing/luger-research-e-u","date":"2017-03-29T17:08:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190754.6/warc/CC-MAIN-20170322212950-00201-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9535388350486755,"token_count":167,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__228078488","lang":"en","text":"Luger Research e.U.\nLuger Research – Institute for Innovation & Technology, located in Austria, was founded in 2001. In addition to its Technology/Innovation Consultancy, Luger Research focuses on LED publications and the LED professional Symposium +Expo.\nSince 2006 the LED professional publications have been providing the lighting industry with comprehensive information about Solid State Lighting including developments in LED and OLED technology. The publications are based on many years of experience in the lighting industry and a wealth of knowledge in the areas of technology, consultancy and research. The LED professional Symposium +Expo was introduced in 2011 and is now regarded as Europe’s foremost technology driven LED lighting event. This is where everyone in the industry meets to exchange, present, develop and cultivate new aspects of this future orientated technology.","domain":"optical_engineering"}
{"url":"https://bestportablereview.com/best-mirrorless-camera-under-500","date":"2020-11-26T06:55:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141186761.30/warc/CC-MAIN-20201126055652-20201126085652-00137.warc.gz","language_score":0.9426409602165222,"token_count":2161,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__30059755","lang":"en","text":"Mirrorless Camera has become the preference for many photographers today. Although there are still some who prefers the digital SLR, the number of those transitioning towards Mirrorless camera is getting larger and larger. Perhaps, you may not be familiar with this type of camera. Just like the name suggests, a mirrorless camera is simply that – does not contain a mirror in the lens. It is a modification of the digital SLR camera.\nBest Mirrorless Camera under $500 For 2020\n|Name:||Rating:||Price on Amazon:\n|Panasonic Lumix DMC-G5||5.0|\n|Canon EOS M100 Mirrorless Digital Camera||4.9 (Best Price Under $400)|\nWhat is a Mirrorless Camera?\nMirrorless Cameras are in fact Digital Cameras that provide the picture versatility and quality of professional Digital Single-Lens Reflex Cameras, along with mobility which comes closer to those of the more popular point and shoot digital cameras. These cameras are often called Mirrorless Interchangeable Lens Digital Camera since unlike the vast majority of Digital Cameras in the consumer market, these have a mechanism for lens changing in a convenient manner, as is performed with the professional ones.\nThe innovative design of these cameras preserve the Image Sensor Systems of the DSLR cameras which makes all of this attainable. This means that the quality factor of these cameras is not affected at all. Furthermore, the mirror which is common to Reflex mirrors is not incorporated, making these mirrorless cameras compact and very mobile, unlike the traditional DSLR cameras.\nThese cameras possess the Micro Four Thirds Systems. This micro 4:3 system has been specially designed by Panasonic and Olympus and is among the specifications made especially for these mirrorless cameras. This new original standard allows the minimization of the lens dimensions, without having to affect the picture quality too much.\nAbove that, the old SLR Four Third Lenses function very well on the mirrorless camera since they share most of the specifications used by the original 4:3 standard, though an adapter is necessary in such cases.\nThe viewfinder is another great characteristic of the mirrorless camera which is worth discussing. While the standard DSLRs function on an optical viewfinder that requires a mirror and a prism, this whole element has been removed with the mirrorless cameras. Taking its place is the Electronic Viewfinder. It is a reproduction of the original Viewfinder by allowing the photographer to observe the image through the sensor’s eyes rather than the lenses, similar to the LCD display that is situated on all the popular point and shoot cameras.\nThese mirrorless cameras have yet to completely seize the attention of the mass population due to the lack of a definite standard, as the mirrorless technology is quite a new one. If you are prepared to check out new technological advancements, you may want to go over the many reviews available for the models available in the market and ultimately select the Mirrorless camera which best suits your needs.\nAt the end of the day, the mirrorless cameras definitely delivers what they promise – taking great photos easily and quickly. Although they may be a bit more expensive than the standard camera, they are definitely a must try for any photo lover. If you haven’t yet checked them out, you’re missing out on the fun. Go ahead, give them a try!\nPanasonic DMC-G5 Review\nPanasonic has brought us another match-winner; maybe, let’s hope that it is one. But yes, it is a camera that is sure to make you go Wow! Not many cameras have the tendency to make their users get this expression on them. The best and the most important of all, Panasonic has not created this product for any professional, but it is for people like us, you and me. Let us now complete the Panasonic DMC-G5 review.\nBody & Design\nThe body of the Panasonic DMC-G5 is a strong and sturdy plastic body. You might say that it is weak due to the plastic, but it is actually not. It is pretty small and portable with a size of 8.3 x 12 x 7.1 (H x W x D in cm). It has been provided with a nice large and bright 3 inch touchscreen to control and view. Also the camera has a detachable mirrorless lens and a rubber grip on the side so that the camera can be held steady without the fear of it slipping.\nOperation & Control\nThe operability of the camera is pretty good. It is not quite hard to learn to use the camera. Most of the controls are pretty standard just like the rest of the cameras with the difference of little here and there to mark its extraordinarily from the others. It has a twisting control panel to browse through various modes and menus of still photos, videos, etc. Other minute controls and settings can be reached and changed via the 3-inch capacities touchscreen provided.\nPanasonic DMC-G5 Performance Review\nThe performance of the camera is outstanding. Its 16 MP camera lens makes sure the images are perfectly crystal clear. It is loaded up with many features like the image stabilization program, autofocus, brightness monitor, face detection, etc. It has various colors and shooting modes in it that gives you loads of options to shoot the picture according to your liking. The camera has a 16.05 MP MOS sensor and a Venus Engine which lets you shoot real high-quality images and videos.\nThe camera has the capability to shoot images of resolution up to 4608 x 3456 and videos of 1080p HD at 60 fps. What more could you possibly need from your camera? It is maybe the best one available in the market right now. The camera has a 4X optical zoom and an aperture of F/3.5- F/5.6 with shutter speeds of 8 – 1/1600.\nIt has an inbuilt image stabilization program in it. Along with with it there are two autofocus programs provided in it, the Light speed autofocus which allows for clear pictures of moving sources if you are moving and the Eye sensor autofocus which used the electronic viewfinder to automatically focus when your eyes face the focus. Both these great features and loads of many other small programs work together for the best pictures so that you can easily capture and store all your memories.\nWhat Makes A Camera Mirrorless?\nDigital SLR camera has large mirrors on the inside. These occupy large space on the inner side of the camera making is large and heavy. Nevertheless, these mirrors allow better manual control and the autofocus is also very fast. The arrangement of the mirrors on the inner side of this camera also ensures faster bouncing of the image on the viewfinder. The speed with which this camera does this makes it a preference for some photographers.\nOn the other hand, a mirrorless camera is designed for people who want a light and small-size camera. This is because size and weight are the major drawbacks of the digital SLR camera. Manufacturers have created a camera that is small, light and with superior image quality. This has been made possible by the removal of mirrors that increase the size and weight of a digital SLR camera. By eliminating these mirrors, the manufacturers have greatly reduced the camera size especially its depth.\nThese mirrors are either replaced by electronic alternatives or eliminated permanently. However, other features such as the manual controls, fast autofocus, and speedy performance are still maintained.\nA mirrorless camera comes with physically larger sensors. These are responsible for capturing images of higher quality. This becomes apparent when taking images in places with low light. The larger the sensors, the better the image quality. This is one feature that comes out clearly when evaluating major differences between a digital SLR camera and the mirrorless camera.\nApart from being light and smaller, the majority of these cameras will have intelligent modes that are automatic. These are designed for the purpose of helping photographers get better results. For instance, you may be in need of a portrait image. You want it to have a good blurry background but not sure of the right camera settings. These modes will help you achieve this. Even when you do not know the right settings to help you achieve this, the automatic mode will intelligently help you achieve the look you want. With this mode, you just choose blur background and the camera will do the rest.\nA mirrorless camera does not have a viewfinder. Therefore, you use the LCD when taking photos. This is similar to the compact camera.\nWhat Mirrorless Camera Equipment to Buy?\nEvery digicam really needs mirrorless camera components to function better. Camera equipment incorporates a memory-card together with a soft camera scenario to defend it from any damage. Those who want to take a trip need to consider a solid camera case to provide more security to the camera. All-digital cameras need washing mirrorless camera add-ons like the cleanup system. It isn’t preferable to clear your camera optics with a top, water, hands or breath of atmosphere. The system has a sleek and clean cloth, a blower brush and also a small bottle that has a solution to wash lens and cleaning tissues.\nAn additional of the camera accessories you’ve to consider may be the tripod. It allows preventing the going of the camera when shutter speed drops. Should you’d prefer a closeup capture of the item(macrophotography), the tripods are necessary mirrorless camera equipment.\nAdditional important digicam extras are batteries; you may obtain an extra battery. Just about all the digicam batteries are rechargeable and you need to be sure that you recharged both batteries prior to going to get a photo-shoot until you desire to be uncomfortable when you wish to improve battery throughout the period.\nAnother essential camera add-ons are camera stabilizers, camcorder backing consists of internal camera assistance that’s a roll axis to provide stability on snapshot development. A camcorder stabilizer that is easily adaptable a number of digicam patterns through a versatile mounting design and variable fat managing method could also give you more quality for the money. You need to use it for several various camera versions, from lighter weight or smaller sized mirrorless camera to some movie camcorder (offered it’s from your weight class for that unique camera stabilizers). If you’d want to look at a photo without having to fear, you should make certain that you’ve all of the desired mirrorless camera extras before going out for shooting.","domain":"optical_engineering"}
{"url":"https://spaceweb-staging.mit.edu/events/multilayer-fabrication-and-testing-and-a-simple-x-ray-polarimeter-speaker-s-s-panini-indian-institute-for-astrophysics-bangalore-india/","date":"2023-12-06T01:51:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100575.30/warc/CC-MAIN-20231206000253-20231206030253-00501.warc.gz","language_score":0.9155715107917786,"token_count":108,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__264467668","lang":"en","text":"Multilayer mirrors provide a unique opportunity of developing high efficient hard X-ray telescopes as well as soft X-ray polarimeters. Though the technology of fabricating multilayer mirrors is well established, several new fabrication and characterization techniques are being developed to suit them for various astronomical applications. In the talk, I will discuss regarding the fabrication and various characterization techniques of multilayer mirrors. I will also present a simple design of multilayer mirror based soft X-ray polarimeter operational under 1 keV.\nHost: Herman Marshall","domain":"optical_engineering"}
{"url":"http://www.hpdls.org/","date":"2017-04-25T12:36:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120349.46/warc/CC-MAIN-20170423031200-00550-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9035714864730835,"token_count":384,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__45275911","lang":"en","text":"Welcome to HPDLS | 2017\nA co-located meeting at Photonex, the UK’s largest showcase event dedicated to photonics and light technologies.\nAdvances in diode lasers and diode pumped lasers continue unabated as the range of applications increases. These advances are reflected in the current drive to develop kW-class direct diode laser systems. At the same time, advances in diode pump lasers continue to contribute to advances in solid state and fibre lasers. This conference, the 8th in the series, enjoys a growing reputation for showcasing the most significant recent advances in both the technology and the applications of high power diode laser systems – and for stimulating cross-sectorial and cross-disciplinary technical exchanges. The Conference includes an international programme of invited speakers, who are well positioned to discuss recent advances and current challenges in the field.\nThe papers from the 2015 event may be reviewed on the IEEE Xplore Digital Library website:\nINVITED SPEAKERS IN 2015\nDr Daniel A Cohen, University of California, Santa Barbara. “Progress in nonpolar and semipolar laser diodes”\nPrincipal Development Engineer in the Solid State Lighting and Energy Electronics Center and the Materials Department\nConference Organiser Scottish Chapter of the IEEE Photonics Society.\nComment on the 2015 Conference The programme chair is Professor Eric Larkins from the Department of Electrical and Electronic Engineering, University of Nottingham. “This is an exciting time for high-power diode lasers, with advances being made in brightness, beam combining and the development of kW-class direct diode lasers for industrial applications. Having seen an increase in delegate numbers year on year, we are delighted that we are holding this event for the eighth time alongside the UK’s premier networking/showcasing event for photonics research and technology.”\nRegister your attendance today!","domain":"optical_engineering"}
{"url":"https://www.cnyeyecare.com/orbscan-ii-by-bausch-lomb/","date":"2024-03-05T00:56:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476592.66/warc/CC-MAIN-20240304232829-20240305022829-00303.warc.gz","language_score":0.7748674750328064,"token_count":128,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__115770944","lang":"en","text":"ORBSCAN II by Bausch & Lomb\nORBSCAN II by Bausch & Lomb allows for precision measurement of the anterior segment of the eye. Utilizing a scanning slit measurement system, the instrument provides the clinician with important diagnostic information about the cornea, iris, and lens. ORBSCAN II provides anterior segment data in the form of topographic surfaces. Elevation topography of the anterior cornea enables clinicians to more accurately visualize the shape of abnormal corneas, which leads to more accurate diagnoses and more consistent surgical results.\nBrowse our online store for contacts and other eye care products.","domain":"optical_engineering"}
{"url":"https://coinimaging.com/field_curvature.html","date":"2023-11-29T02:20:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100047.66/warc/CC-MAIN-20231129010302-20231129040302-00068.warc.gz","language_score":0.9594263434410095,"token_count":243,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__238748839","lang":"en","text":"Field curvature is an aberration that isn't commonly seen by itself where it's bad enough to be easily identified. It is commonly overshadowed by things like astigmatism, coma, and spherical abberration, and if it's present it's in small enough quantities that it's hard to identify. Occasionally I will find a lens where it can be seen on an image. I recently found it easily visible on a microscope objective - Edmund Optics 5x/0.225. The two images below show how it works. Field curvature is pretty simple, the focus plane is curved and not flat like the camera detector. The easiest way I can describe it is to think about looking down at a ball. If you focus on the top, only the top will be in focus. As you focus farther down the ball, the center will come out of focus and a ring-shaped portion of the ball will come into focus. As the focus continues down the ball, the ring of in-focus ball will enlarge. The first image shows the focus on the center of the image. The second image shows the area of sharp focus is now a ring while the center and the far edge are out of focus.","domain":"optical_engineering"}
{"url":"https://landing.ai/blog/designing-image-acquisition-for-machine-vision/","date":"2024-03-01T10:33:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00473.warc.gz","language_score":0.9202209115028381,"token_count":2318,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__78608742","lang":"en","text":"The first step in collecting training data for machine vision is to design your image acquisition system. The images you acquire for training and inference may be negatively impacted by a poorly designed imaging solution. On the other hand, a well-designed image acquisition system will boost your model’s accuracy and sensitivity. In this article, we explain how to design an image acquisition system solution with machine vision examples.\nWe will cover the following key factors for creating quality images needed for training your model.\n- Field of View\n- Depth of Field\n- Color vs black and white\nAfter collecting a set of images you may find that some are not optimal. Instead of discarding them and starting over you may be able to reuse them with some post-processing to alter the image. Then use the edited image for training. The result of completing this step is a set of quality images used for training your system.\nCollecting Sample Data\nAs a first step we want to capture many samples showing the target object clearly in the image. Then we evaluate the images for how clearly they show the target object. This shortens the processing time for iterating through the data set, We want to build a lab environment to quickly test different factors that will affect the quality of photographic images.\nOne of the image solutions we designed was for detecting leaks in air compressors. They were pressurized and submerged into a tank of water. This created bubbles coming from any leaks. In this article we’ll use this example to discuss various aspects that affect the imaging solution.\nLet’s start by discussing the factors that affect the quality of your images.\nEnvironmental Factors Affecting Image Quality\nThe previous section discussed camera settings controlling the exposure. In the next section we’ll discuss factors that are outside of the camera. These are the environmental factors.\nLighting is critical for successful imaging. If after adjusting the three exposure settings you do not have enough available light, then you have to look to the lighting equipment. Proper lighting is specific to the nature of the image analysis and depends on the specific environment and object(s) being captured. Lighting can highlight desired aspects or diminish unwanted ones. You will need to experiment to find the optimal lighting for your needs.\nThere’s a number of different lighting options such as direct, backlight, or diffused light.\n- Direct light would be used to reveal the surface and create sharp shadows. Depending on the angle of the light to the angle of the camera, known as the angle of incidence, direct light can be used to enhance edges and texture.\n- Backlight can highlight edges and separate an object from the background. Taken to the extreme, backlight can create a silhouette to reveal the object’s outline with no detail of its surface.\n- Diffused light, or scattered light, reduces shadows. This would be effective for removing unwanted shadow textures that can interfere with capturing details on the object’s surface.\nA dedicated article of lighting is needed to cover this topic adequately. Here we’ll cover just one example of how lighting affects image quality. In our leak detection, proper lighting would highlight the bubbles and help separate them from the background. Below is a comparison of images under different lighting conditions.\nInside a photography studio, you typically see subjects in front of a pure white or black background. This hides distractions and separates the subject. This sample principle applies to machine-based visual inspection. We want a distraction-free background. Then human workers, as well as the AI models, can give their attention to the important areas and therefore more likely to catch defects.\nIn our air compressor example the back of the inspection tank was a glass wall. That allowed inspectors to see the back of the compressor, but this also created a problem.\nThe glass wall reflected anything in front of the tank, such as lights, people, and other bright objects in the room. These unwanted objects in the image distracted the model. In the image below you can see the reflection of two tubes.\nA simple fix was to add a black background. This prevented the reflections. Additionally this increased contrast and that helped to highlight the bubbles.\nLook at the image below. You can easily find the small bubbles when using a black background. Now look back at the image above and notice how much harder it is to spot the bubbles.\nField of View\nThe lens focal length and image sensor size determine the physical area of the subject that can be captured. In other words, how wide of a shot can be obtained. Wider lenses and large sensors can capture a larger field of view. Increasing the distance from the subject to the camera can increase your field of view.\nThe image’s resolution will be determined by the size of the camera sensor and the field of view. Higher resolution can increase the accuracy of the subject.\nIn our example we need to capture an image of sufficient resolution that includes the entire air compressor and some distance above it for the rising bubbles.\nControl Exposure With Camera Settings\nThe amount of light captured by a camera’s sensor is referred to as the exposure. There are just three factors that determine the exposure. If one factor is too low, we can increase it by trading that for another. The three main camera settings controlling exposure are:\n- Shutter speed – adjusts the amount of time the sensor gathers light\n- Aperture – adjusts the amount of light that passes through the lens\n- Sensor sensitivity – adjusts the sensor’s sensitivity to light, measured as ISO\nEach factor also affects different qualities of image capture. This is another dimension of the art of photography. Unlike art, machine vision isn’t about creativity. The goal is to obtain the best quality image. Here’s the trade off to consider when adjusting the exposure.\n- Shutter speed – faster speeds are needed to freeze motion but reduces the amount of light reaching the sensor\n- Aperture – wider settings will increase the amount of light on the sensor but reduces the depth of field\n- Sensor sensitivity – higher levels of sensitivity will increase noise\nIf you need to increase the shutter speed, or exposure time, then to compensate for the lost amount of light you need to increase one or both of the other factors. You have to find the right balance of all three for the best image.\nWith low levels of light, we can extend the exposure time, or shutter speed. This comes with a tradeoff.. You may have seen photos of fast moving objects such as a race car using a long exposure time, or slow shutter speed. The object looks smeared in the image. This effect is called motion blur. While this might look exciting for photos of cars during a race, it’s bad for machine vision.\nIn the following examples of a spinning pinwheel, each of which are spinning at the same speed. The exposure time ranges from slow to fast. The amount of the light coming into the camera is kept the same by adjusting the aperture and camera’s sensitivity. As you can see the faster exposure time appears to freeze the motion, producing a sharp image.\nDifferent exposure times of object in motion\nThe lens’s aperture controls the depth of field, or DOF. This is the distance from the nearest to the furthest object that is sharp in the photo. Objects outside of the DOF will be less sharp. Increasing the DOF reduces the amount of available light reaching the sensor.\nThe ideal setting is one that has all the target objects within the DOF, but no more. This way we can optimize the amount of light in the exposure. We increase the DOF by reducing the aperture size. This lowers the amount of light in the exposure. To compensate for this we can increase the sensitivity at the sensor, the ISO setting.\nIn our example of detecting rising air bubbles, increasing the DOF makes our model more accurate at detecting any bubbles rising from the front or back of the compressor.\nThe sensitivity to light in a camera can be adjusted. This is the ISO value. Higher values mean higher sensitivity. But higher sensitivity comes at a cost. It introduces digital noise. These are unwanted artifacts in the image. You adjust the ISO in relation to shutter speed and aperture settings. Just be cautious you are not allowing noise in the images to affect your model.\nColor or Monochrome\nThere is one more camera setting that might be a consideration. Monochrome, or black and white, images have the advantage of being more efficient at capturing lower levels of light. If color is part of your image analysis, such as spotting a red object, then obviously you have no choice but to capture in color.\nLow levels of light can introduce color artifacts of digital noise and chromatic aberration. Using monochrome images we get increased brightness with less noise.\nReusing Images for Training\nIf we’ve changed camera settings or the environment, after training our models we need to retrain. However, don’t throw away the old data! You may be able to reuse those images. For example, if the originals were in color and you’re switching to monochrome, convert the originals to grayscale. There are many software applications for photographers that will make this conversion easy and perform it on a folder of images in one batch.\nOnce the old images are converted they can be reused in model training, probably with lower weights during backpropagation. This old data, as generated in various production settings, is very good for data augmentation and makes the output model more robust.\nBuild a Test Environment\nIn addition to the background and lighting, there are other factors that could affect visual inspection tasks. In our example this would include water condition and air quality. Experimenting with those factors in a real production environment may be time-consuming and may not be feasible.\nWe recommend that you set up a lab that mimics the production environment and run controlled experiments. Test both qualitative or quantitative evaluations. Then, once you find a better environment setting, generalize and apply it to the production environment. This method will help you quickly iterate without disturbing the production environment.\nIn this article, we discussed the key factors that will affect machine vision. We explained the basic controls that determine exposure and how to improve the physical environment.\nYou may wonder why so much effort should be spent setting up an imaging solution. Through our experience, we have found that an optimal camera configuration has a critical impact on the project’s overall success.\nWe’ve encountered scenarios when in the middle of our model iteration, we would find our model’s performance negatively impacted by the input imaging quality. This meant going back and readjusting cameras and/or the environment. Every time we make such a change, the data distribution changes. This in turn forces us to collect new data and retrain the model. This process is costly.\nTherefore, we strongly recommend that you spend more effort in the beginning of the AI project. Tune the camera and environment through multiple experiments. Better images means there’s less chance of having to start over.\n- Quality of images needed in model training is controlled with lighting, background, and camera settings.\n- Experiment to determine the best image acquisition solution.\n- You may be able to reuse existing images with post-processing.","domain":"optical_engineering"}
{"url":"http://openaccess.dogus.edu.tr/handle/11376/113/discover?filtertype_0=type&filter_0=article&filter_relational_operator_0=equals&filtertype=subject&filter_relational_operator=equals&filter=Color+Vision","date":"2019-08-18T03:06:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313589.19/warc/CC-MAIN-20190818022816-20190818044816-00119.warc.gz","language_score":0.8389253616333008,"token_count":248,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__164136529","lang":"en","text":"Now showing items 1-4 of 4\nColour contrast influences perceived shape in combined shading and texture patterns\n(Brill Academic Publishers, 2006)\nThe 'colour-shading effect' describes the phenomenon whereby a chromatic pattern influences perceived shape-from-shading in a luminance pattern. Specifically, the depth corrugations perceived in sinusoidal luminance gratings ...\nAdaptation and visual salience\nWe examined how the salience of color is affected by adaptation to different color distributions. Observers searched for a color target on a dense background of distractors varying along different directions in color space. ...\nDichoptic difference thresholds for chromatic stimuli\nWe have investigated the properties of binocular color vision using a new measure: the Dichoptic Color Difference Threshold (DCDT). The DCDT is the smallest detectable difference in color between two dichoptically superimposed ...\nChromatic variations suppress suprathreshold brightness variations\nMost objects in natural scenes are suprathreshold in both color (chromatic) and luminance contrast. How salient is each dimension? We have developed a novel method employing a stimulus similar to that used by B. C. Regan ...","domain":"optical_engineering"}
{"url":"https://www.amsequipment.com/product/gd-10p/","date":"2024-04-23T08:09:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818468.34/warc/CC-MAIN-20240423064231-20240423094231-00896.warc.gz","language_score":0.8707497119903564,"token_count":168,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__80988131","lang":"en","text":"The GD10P infrared gas detector is the benchmark for combustible gas detection on offshore installations. It has set the standard for gas detectors in the areas of safety, stability and low maintenance. GD10P comes with 5 years warranty.\nThe GD10P differs from all other infrared gas detectors because it uses a silicon based solid- state infrared source. The optical block is so stable that it comes with a 15 year warranty and provides an unparalleled detector stability, an unmatched service life and a ultra fast response time.\nFor retrofit applications, a bridge interface is available allowing the detector to be connected directly to catalytic systems using the existing cabling and control modules.\nThe GD10P also features heated optics, HART interface, fail-safe operation and global approvals.\nOut of stock","domain":"optical_engineering"}
{"url":"https://www.ukbusinesspark.co.uk/and03223.htm","date":"2018-11-20T17:42:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746528.84/warc/CC-MAIN-20181120171153-20181120193153-00490.warc.gz","language_score":0.9415702819824219,"token_count":217,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__103885110","lang":"en","text":"We Help Companies Find New Sales Opportunities\nAndor Technology of Belfast has acquired Apogee Imaging Systems, the US-based imaging firm with 19 staff, for £2.3m.\nAndor Technology is investing £18m in the expansion of its Belfast-based camera manufacturing business, with the creation of 166 jobs.\nAndor Technology has acquired Photonic of the US for £3.2m, and will transfer the manufacture of precision lighting systems to Belfast.\nAndor Technology has acquired Bitplane, the Swiss supplier of image analysis software with 30 staff, for £7.5m.\nAndor Technology is to expand the workforce at its Belfast-based scientific cameras business from 110 to 170 by the end of 2006.\nAndor Technology is to invest £6m in the expansion of its scientific cameras business in Belfast, with the creation of 87 jobs over the next three years.\nAndor Technology is planning a £5m expansion at its scientific imaging equipment factory in Belfast over the next three years, with the creation of 75 new jobs.","domain":"optical_engineering"}
{"url":"https://intermediatouch.com/portfolio-posts/miami-international-mall/","date":"2023-12-08T10:23:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100739.50/warc/CC-MAIN-20231208081124-20231208111124-00006.warc.gz","language_score":0.9230238795280457,"token_count":382,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__163426865","lang":"en","text":"Simon Properties, Miami International Mall awarded Intermedia Touch the installation of a 10′ x 35′ Full Color 10mm Outdoor LED Billboard. The LED sign was manufactured in the USA and featured an all-aluminum constructed frame and mounting angles. The display utilized universal-sized 12.6″ x 12.6″ modules with watertight IP67 rated float silicone sealed fronts and IP67 rated conformal coated sealed backs, making it resistant to humidity and heat. The LED modules were front and rear accessible and had 3/16″ Allen wrench-actuated metal cam locks at four points, making them easy to maintain.\nIntermedia Touch provided project management, permits, engineering, sourcing, testing, and installation services for this project. The company’s team of experts ensured that the LED display was installed correctly and met all necessary safety and regulatory standards. Additionally, the team provided ongoing support and maintenance to ensure that the display continued to function optimally over time.\nThe LED display featured bright 160-degree viewing angle LEDs set in high contrast 1000:1 ratio louvers, making it easy to view from a distance. The display was powered by humidity and heat-resistant conformal coated Meanwell power supplies, which ensured reliable performance in all weather conditions. The display was certified MET Lab and came with an extensive warranty, giving Simon Properties peace of mind knowing that the display was backed by a comprehensive warranty.\nOverall, Intermedia Touch’s successful installation of the 10′ x 35′ Full Color 10mm Outdoor LED Display for Simon Properties at the Miami International Mall showcases the company’s expertise in providing end-to-end solutions for LED display installations. With our comprehensive range of services, Intermedia Touch ensured that the LED display was installed correctly, met all necessary safety and regulatory standards, and was backed by a comprehensive warranty, providing a reliable and effective advertising solution for Simon Properties.","domain":"optical_engineering"}
{"url":"https://www.signalcheck.pl/services/fiber-optics","date":"2024-04-19T16:31:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817438.43/warc/CC-MAIN-20240419141145-20240419171145-00798.warc.gz","language_score":0.8898990750312805,"token_count":816,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__86551388","lang":"en","text":"Our team of specialists has the necessary experience in the installation, configuration, and maintenance of fiber optic networks. Thanks to our services, we ensure fast and effective implementation and maintenance of fiber optic infrastructure, guaranteeing the reliability and performance of your network.\nFiber optics constitute an integral part of the telecommunications infrastructure, enabling fast data transmission over significant distances. The process of planning, preparation, laying, and installation requires particular precision and care. In this article, we will present a comprehensive guide to this process, which will help better understand the stages and requirements associated with fiber optic installation.\nThe first step in the fiber optic installation process is a thorough analysis of the project's requirements. This includes considering bandwidth needs, distances, types of data transmitted through the fiber optics, as well as any budgetary and technical constraints.\nThe next stage is designing the route along which the fiber optics will run. This involves considering the terrain's topography, existing infrastructure, natural and artificial obstacles, and other factors that may influence the route selection.\nPreparation of Technical Documentation:\nBased on the designed route, appropriate technical documentation must be prepared, including fiber optic route maps, installation plans, connection diagrams, and technical specifications of devices and materials.\nBefore commencing fiber optic laying, it's necessary to prepare the site, including clearing the route of obstacles, marking measurement points, and potentially carrying out earthworks.\nFiber Optic Laying:\nOnce the site is prepared, fiber optic laying can begin. This process involves laying cables along the designed route, securing them against damage, and connecting them to end devices.\nInstallation of Connectors and Accessories:\nAfter laying the cables, connectors and accessories such as distribution boxes, telecommunication cabinets, and cable protection and management systems are installed.\nTesting and Commissioning:\nUpon completion of installation, tests are conducted to verify connection correctness, signal quality, and system operation. Upon successful tests, the system can be commissioned for use.\nDocumentation and Handover:\nFinally, technical documentation must be prepared and handed over to the client or system owner.\nMaintenance and Upkeep:\nAfter system commissioning, regular maintenance and upkeep are necessary, including cleaning, technical status checks, and any necessary repairs.\nPlanning, preparation, laying, and installation of fiber optics are complex processes that require precision, care, and technological knowledge. Fiber optics are a crucial element of the telecommunications infrastructure, so it's important for their installation to adhere to the highest standards of quality and safety.\nSample Fiber Optic Installation Quotation:\nRequirements Analysis and Route Design: Analysis of client requirements, designing an optimal fiber optic installation route along with the preparation of technical documentation, cost from 500 PLN\nPurchase of Materials and Equipment: Purchase of fiber optics, connectors, cable covers, distribution boxes, cost from 1000 PLN\nSite Preparation: Site preparation including clearing, marking measurement points, and potential earthworks, cost from 1500 PLN\nFiber Optic Laying: Laying fiber optics along the designed route, securing cables, and connecting them to end devices, cost from 3000 PLN\nInstallation of Connectors and Accessories: Installation of connectors, distribution boxes, telecommunication cabinets, and cable protection and management systems, cost from 1000 PLN\nMaintenance and Upkeep: Regular maintenance and upkeep of the system including cleaning, technical status checks, and any necessary repairs, cost calculated based on a service contract, for example, from 200 PLN per month.\nOur services are available in: Szczecin, Koszalin, Stargard, Kołobrzeg, Świnoujście, Goleniów, and throughout the West Pomeranian Voivodeship/zachodniopomorskie.\n+48 91 819 99 19\n©2022 by SignalCheck.","domain":"optical_engineering"}
{"url":"https://www.eyesight.sg/2023/09/25/your-comprehensive-guide-to-coopervisions-misight-contact-lenses/","date":"2023-11-30T17:50:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100229.44/warc/CC-MAIN-20231130161920-20231130191920-00718.warc.gz","language_score":0.9039672613143921,"token_count":889,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__68691250","lang":"en","text":"Myopia, or nearsightedness, has become a growing concern worldwide. More children are being diagnosed with myopia at an early age, raising questions about its long-term impact on their eye health. Parents and eye care professionals increasingly seek practical solutions for myopia control to ensure a brighter future for these young eyes.\nImagine a world where your child's myopia isn't just corrected but actively managed. MiSight lenses are more than contact lenses; they're a game-changer in myopia control.\nThis article will delve into the revolutionary technology behind MiSight lenses and how they redefine how we approach childhood myopia.\nWhat are MiSight Lenses Used For?\nMiSight lenses are not your standard soft contact lenses. They embody a unique dual-focus design, providing alternating distance correction and treatment zones. This innovative approach influences peripheral optics, effectively modifying how light focuses on the peripheral retina. The result? Reduced eyeball elongation, slowing myopia progression and lowering the risk of developing high myopia.\nHow Do MiSight® 1 Day Lenses Differ from Regular Contacts?\nStandard contact lenses focus solely on correcting myopia, offering clear vision without addressing progression. Unlike regular lenses, MiSight lenses feature specialized treatment zones surrounding the central area. This distinction empowers MiSight® 1 Day Lenses to control myopia progression actively.\nWhat to Expect During a MiSight® 1 Day Contact Lens Fitting?\nDuring a MiSight fitting, our experienced team at Eyesight.sg will work closely with you and your child. We aim to obtain precise measurements for the lenses and provide a comprehensive education.\nWe will explain how MiSight lenses work, ensuring you and your child understand the process. This education includes step-by-step guidance on managing the lenses effectively over the coming years.\nMany children notice positive results within a month of consistent MiSight lens use. The easy-to-use, 1-day disposable lenses require minimal maintenance, and over 90% of children prefer wearing them to glasses.\nHow Does it Control Myopia Progression?\nThe secret to controlling myopia progression lies in MiSight's innovative dual-focus design. By correcting distance vision and addressing myopia progression, these lenses actively work to slow down the rate of prescription change, leading to a brighter future with a reduced risk of developing severe vision problems.\nFour Reasons for MiSight® 1-Day Contacts\nAre you wondering if CooperVision MiSight® 1-day contact lenses are a good choice for your child? Here are four reasons you may want to consider them:\nEase of Use: MiSight lenses are 1-day disposable lenses, making them a perfect choice for children and teens. Your child won't need to worry about lens care, disinfection, or the fear of losing a lens. Learning how to insert and remove the lenses is straightforward, with less than 10% of children needing parental assistance.\nBoost in Self-Esteem: For some children, wearing glasses can lead to insecurity and concerns about teasing from friends. MiSight lenses allow kids to enjoy clear vision without altering their appearance. These lenses help them see better and maintain their unique style and self-esteem.\nFuture Vision Protection: Myopia worsens during childhood and stabilizes in adulthood. However, the severity of myopia increases the risk of eye conditions in adulthood, such as glaucoma, cataracts, retinal detachment, and even blindness. By slowing myopia progression, MiSight lenses can significantly reduce the chances of these vision problems.\nEnhanced Independence: Even individuals with low levels of nearsightedness may require glasses for specific activities, such as driving or watching a movie. MiSight lenses offer a convenient and effective way to reduce dependence on glasses, granting your child potentially increased freedom and flexibility.\nWhy is Myopia Control Important?\nSlowing myopia progression is crucial for your child's long-term eye health. While glasses may correct vision, they don't actively address the underlying issue of myopia development. MiSight lenses offer a proactive approach to myopia control, ensuring a brighter future for your child's vision.\nContact Eyesight.sg to schedule a fitting for MiSight lenses and take the first step toward managing your child's myopia.","domain":"optical_engineering"}
{"url":"https://ioptronstore.bisque.com/product/thesky-imaging/","date":"2023-06-07T11:15:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653764.55/warc/CC-MAIN-20230607111017-20230607141017-00369.warc.gz","language_score":0.8619482517242432,"token_count":225,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__75718456","lang":"en","text":"$100.00 for 1 year and a $595.00 sign-up fee\nSoftware Bisque’s TheSky™ Imaging bundle helps you become more productive by letting you control all your imaging devices with a single power application, and from a reliable software developer.\nTheSky Imaging bundle provides world-class device control, including telescope mounts, CCD/CMOS/DSLR cameras, focusers, filter wheels, autoguiders, and rotators…all right out of the box.\nYou’ll enjoy lightning-fast renderings of the sky with amazing detail based on your preferences. Point to your object and start imaging.\nWith its integrated TPoint™ telescope modeling, you’ll spend less time hunting and more time imaging. You can polar align your telescope without needing any pole stars, which is great when relatively small patches of sky are visible. After telescope calibration, TPoint automatically improves your telescope’s pointing accuracy.","domain":"optical_engineering"}
{"url":"https://www.uv-el.de/vn/uv-technology/uv-allgemein/","date":"2019-05-21T04:34:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256227.38/warc/CC-MAIN-20190521042221-20190521064221-00205.warc.gz","language_score":0.9363739490509033,"token_count":214,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__5015066","lang":"en","text":"What is UV radiation?\nUV rays are high energetic, electromagnetic rays, occurring in the natural spectrum of the sun.\nFor UV disinfection the bactericidal UVC range (200 - 280 nm) is used and here the specific wavelength of 254 nm. The absorption maximum of microorganisms lies at this wave length, from which results the germicidal effect.\nIn addition, the UV radiation can also be used to reduce TOC (total organic carbon). The energy-rich UVC radiation is made use of in the wave length range of between 200 – 280 nm and, contrary to disinfection, also of the VUV (vacuum UV) in the interval of 100 – 200 nm.\nIn several fields of industry, ozone is increasingly being used for disinfection and cold sanitisation purposes of ultrapure water storage and distribution systems. Before using the water in processes, the ozone has to be destroyed. In this case the destruction of residual ozone by UV is the ideal process. However, only lamps with a wavelength of 254 nm were used.","domain":"optical_engineering"}
{"url":"https://www.bayerojet.com/papers/volume-5/issue-1/review-of-fiber-optical-parametric-amplifiers/","date":"2023-12-09T22:22:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100972.58/warc/CC-MAIN-20231209202131-20231209232131-00556.warc.gz","language_score":0.9024917483329773,"token_count":180,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__91371146","lang":"en","text":"A review of Fiber optical parametric amplifiers is presented. Theoretical framework necessary to understand fiber nonlinearities are provided with emphasis on Four – wave mixing, a nonlinear phenomena that transfers energy from a strong pump wave to two waves, a signal wave and a generated idler wave. Fiber optical parametric amplifiers (FOPA) are based on Four–wave-mixing (FWM). FOPA have the prospects of use in several applications of optical communication systems. They can be used for linear signal amplification, wavelength conversion, all – optical signal sampling etc. Such amplifiers exhibits lower noise figures with feasibility to achieve 0 – dB noise figure and they have the ability to operate over arbitrarily centered and wide wavelength ranges. FOPA are certainly enablers to increase overall capabilities of wavelength – division – multiplexed (WDM) optical communication systems.\nNo. of Downloads :","domain":"optical_engineering"}
{"url":"http://www.muzique.com/news/effect-of-light-on-diodes/","date":"2013-12-08T19:06:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163798888/warc/CC-MAIN-20131204132958-00036-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.9554312825202942,"token_count":357,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__199916986","lang":"en","text":"It is a well known fact that light can have an impact on the conduction of some types of diodes. LEDs have been used as photodiodes in certain circuits.\nI theorized that light could be used possibly control the clipping point and/or the knee of the diode conduction curve. A quick search through my parts bin yielded some glass 1N4148 silicon diodes and a few clear 1N34a germanium diodes, which were perfect for the experiment.\nI arranged a selected diode on a breadboard with a red LED positioned to illuminate the glass body of the diode. A small black opaque 35mm film can was used as a cover to shield the setup from ambient light. The LED could be activated from outside the film can shield by applying power to the breadboard.\nWith the LED off, I measured the forward voltage (Vf) of the silicon diode at 550mv. Then I powered up the LED and measured the Vf… still 550mv.\nNext I put the germanium 1N34a into place in front of the LED. It measured 265mv with the LED off and 265mv with the LED on. So far, it’s a bust.\nI tried both diodes with a bright yellow LED, then a green one and finally a really bright blue LED. In no case did the Vf change from the 550mv and 265mv values! I switched meters and measured the Vf with a different meter and then with a diode tester. No change.\nBottom line is that light does not seem to have any influence on the conduction of the diode.\nNot all good ideas work out","domain":"optical_engineering"}
{"url":"https://lawblog.justia.com/2012/10/13/apple-faces-patent-infringement-lawsuit-over-ipad-3-macbook-led-technology/","date":"2023-10-01T08:44:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510810.46/warc/CC-MAIN-20231001073649-20231001103649-00359.warc.gz","language_score":0.9076901078224182,"token_count":297,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__105599942","lang":"en","text":"Apple, Inc. was hit with a patent infringement lawsuit Thursday (read it below) alleging that the company’s iPad 3 tablets and Macbook Pro computers violate four light emitting diode (LED) patents. The case was filed in in federal court in Delaware by claimed patent holder LED Tech Development LLC, a Delaware limited liability company based in Tyler, Texas, the city that is a patent litigator’s combat zone.\nEach of the four infringement claims, the complaint charges, involve Apple “products utilizing pulse-width modulation signals to drive light-emitting diodes.” Apple’s newest iPad a/k/a the ‘iPad 3,’ and Macbook Pro are named specifically.\nThe four patents at issue include:\n- No. 6,095,661: Method and apparatus for an L.E.D. flashlight\n- No. 7,393,119: Method and apparatus for constant light output pulsed L.E.D. illumination\n- No. 6,808,287: Method and apparatus for a pulsed L.E.D. illumination source\n- No. 6,488,390: Color-adjusted camera light and method\nLED Tech Development filed three similar patent lawsuits just eight days earlier against the maker of MagLite flashlights, Home Depot, and Coleman.\nYou can read the new patent infringement lawsuit below, and track the case docket here.","domain":"optical_engineering"}
{"url":"https://uscalifornia.com/armourx-safety-glasses.html","date":"2023-11-29T21:14:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00039.warc.gz","language_score":0.9011660218238831,"token_count":1016,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__286803692","lang":"en","text":"Safeguarding your eyes is crucial while maintaining clear, healthy vision when reading. The ideal solution is to use Armourx safety glasses made exclusively for reading. These glasses improve visual clarity while simultaneously offering crucial eye safety.\nWe will discuss the significant features and advantages of safety readers in this post, along with a review of some of the most well-liked models offered by RX Safety. These safety glasses ensure a secure and comfortable reading time with impact-resistant lenses, adjustable magnification, and anti-fog coating technology.\nThe Essential Features and Advantages of Armourx Safety Glasses for Reading\nReading safety glasses are specifically made to offer eye protection and optical support. They provide a variety of features that guarantee a safe and enjoyable reading experience. Impact lenses, which protect from various risks when reading, are essential. These lenses provide Peace of mind, shielding your eyes from unintentional blows or flying objects.\nAnother crucial component of safety glasses is the ability to magnify objects. These lenses are made to lessen eye strain and tiredness so that you can read for extended periods of time without feeling uncomfortable. You can select the level of magnification that best suits your individual reading requirements, ranging from +1.0 to +3.0.\nSafety glasses or reading from Safety Eyeglasses SEG include a unique everlasting anti-fog coating to improve reading enjoyment. With this unique feature, the lenses will not fog up even in moist or varying-temperature conditions. Get rid of annoying lens fogging and always have clear vision.\nMost popular Armourx safety frames use for reading\nThe most common reading safety glasses differ based on personal tastes and needs. In more detail, let’s discuss the features, advantages, and fashionable frames of the suggested safety Armourx glasses. There are several choices available:\n- Safety reading glasses ARMOURX 7002:\nThe Safety Reading Glasses ARMOURX 7002 blends fashion and utility with its square frame design and anti-fog lenses. These safety glasses are lightweight yet rigid and offer durable wear because they are made of hardy TR-90 nylon. Adequate eye safety is ensured by the integrated side shields, which provide extra protection from lateral risks.\nThese glasses offer magnification settings from +1.00 to +3.00, which lessens eye strain and tiredness and makes reading sessions more comfortable. The ARMOURX 7002 safety glasses are ANSI Z87+ high-impact approved and come in various frame colors with clear lenses, providing dependable protection in multiple settings.\n- ARMOURX E2503 Reading glasses with side shields:\nWith a metal frame and anti-fog lenses, the Safety Glasses ARMOURX E2503 radiates refinement. These glasses’ magnification lenses, which reduce eye strain and tiredness, improve the reading experience. The replaceable side shields provide simplicity and versatility, and the silicone nosepiece guarantees a snug fit.\nThanks to their sleek silver frame, these glasses prioritize eye safety while maintaining a fashionable look. ANSI and EN 166 F approve the ARMOURX E2503 safety reading glasses and, ensuring maximum eye safety in various circumstances making them a dependable option for people looking for utility and flair.\n- ARMOURX 6008 Safety Glasses for Reading\nThe Safety Glasses ARMOURX 6008 have anti-fog lenses and a stylish rectangular plastic frame. These glasses are made of TR-90 nylon, which provides strength and a comfortable feel for prolonged reading sessions.\nIncorporated side shields offer further defense against unforeseen dangers, and rubbery temple bars and nose pads guarantee a snug and comfortable fit. The T9603 has a detachable silicone gasket that offer an extra layer of defense against dust and other pollutants.\nThese Armourx safety frames satisfy ANSI Z87-2+ clearance and are D3/D4/D5 rated against Dust, Fine Dust, and Splash/Droplet. They come with clear lenses and brilliant orange or traditional black frame styles. The ARMOURX 6008 safety glasses are fashionable and functional, providing trustworthy eye safety in various reading settings.\nIt’s crucial to consider your unique diopter demands, comfort, and safety level necessary for your workplace while selecting safety glasses for reading. It would be best to speak with an eye care specialist to make sure you choose the appropriate safety glasses.\nAt Safety Eyeglasses SEG, we have an extensive selection of safety glasses for reading made to keep your eyes safe while improving your reading experience. Our safety glasses combine both safety and comfort thanks to technologies like impact-resistant lenses, various magnification settings, and our confined permanent anti-fog treatment technology. Choose from multiple styles, dimensions, and hues to discover the ideal pair that suits your requirements and interests. Explore our safety glasses selection to ensure your eyes are safe as you read and have fun.\nYou Can Also Read: Coffee Market Witnesses Steady Growth, Surpassing $126.38 Billion in 2022","domain":"optical_engineering"}
{"url":"http://appledailyreport.com/2013/02/14/apple-working-on-image-capturing-device-having-continuous-image-capture/","date":"2013-05-20T00:11:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698150793/warc/CC-MAIN-20130516095550-00071-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9243265390396118,"token_count":587,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__112959566","lang":"en","text":"Apple has filed a patent (number 20130039508) with the U.S. Patent & Trademark Office for an image capturing device having continuous image capture. It involves cameras, handheld electronic devices and, well, other electronic devices.\nHere’s Apple’s background and summary of the invention: “These image capturing devices typically use a preview resolution for capturing a preview image of a scene. Subsequently, a user provides an input to take a photograph. The device switches from preview resolution to full resolution prior to capturing an image. Switching from preview to full resolution causes a time lag, which may lead to user frustration. Also, camera shake during the time when a user presses a button or touches a touchscreen can degrade image quality.\n“Methods, devices, and systems for continuous image capturing are described herein. In one embodiment, a method can include continuously capturing images with an image capturing device. The method can include storing a predetermined number of the sequence of images in a buffer. The device can receive a user request to capture an image. The method can automatically select one of the buffered images based on one or more parameters.\n“For example, the selection may be based on an exposure time of one of the buffered images and optionally an image quality parameter (e.g., image contrast). Alternatively, the selection may be based only on the image quality parameter. The sequence of images can be captured just prior to or concurrently with receiving the user request. The method can include automatically displaying the selected image on the display of the image capturing device. These operations can be initiated after the device enters an image capturing mode or other mode.\n“For example, the device may have many functions and capabilities (e.g., the device may be a smart phone or personal digital assistant (PDA) which can send and receive emails, allow surfing of the internet, create documents, and also act as a camera), and a user can place the device into camera mode in order to cause it to begin these continuous operations. In an embodiment, the device is not continuously performing these operations when it is not in camera mode.\n“In an embodiment, the continuously captured images can be captured in full resolution. The sequence of images can be advantageously captured just prior to the device receiving the user request for the photograph to avoid camera shake associated with the user request (e.g., pressing a shutter button, touching a touchscreen). One of the sequence of images can be automatically selected and displayed in full resolution in response to receiving the user request.\n“The present invention can include systems and devices that perform these methods, including data processing systems which perform these methods, and machine readable media which when executed on data processing systems cause the systems to perform these methods.”\nThe inventors are Ralph Brunner, Nikhil Bhogal and James David Batson.","domain":"optical_engineering"}
{"url":"https://www.skywatcherusa.com/pages/about-us","date":"2020-09-28T14:38:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401601278.97/warc/CC-MAIN-20200928135709-20200928165709-00452.warc.gz","language_score":0.9568637609481812,"token_count":186,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__240507195","lang":"en","text":"Sky-Watcher was launched in 1999 featuring a modest line of Newtonian and refractor style of optical tubes with limited distribution in Europe and Asia. Founder David Shen got his start in the telescope industry as a polishing technician and observed that the industry had a demand for more intuitive, user-friendly products. In 2000, Sky-Watcher released their first series of Dobsonian telescopes, and two years later answered the rising popularity of digital SLRs with their first version of the famed German Equatorial Mount, the EQ6. Today, with a full product line that includes Dobsonians, APO refractors, EQ mounts, and photography products, Sky-Watcher has grown into the most popular telescope brand worldwide.\nAlthough small, the Sky-Watcher USA team of Jeff, Kevin and Alex form a motley crew dedicated to providing you with the best quality astronomical & photography gear at the best possible price.","domain":"optical_engineering"}
{"url":"https://cmbidsolutions.co.uk/product/zebra-symbol-ls2208-usb-barcode-scanner-kit/","date":"2022-08-12T12:23:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571692.3/warc/CC-MAIN-20220812105810-20220812135810-00636.warc.gz","language_score":0.8719370365142822,"token_count":150,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__189757525","lang":"en","text":"The Zebra Symbol LS2208 USB barcode scanner provides fast and reliable barcode scanning for your customers with a wide working range of up to 17 inches. This high-performance handheld scanner is compact and lightweight with multiple interfaces to allow easy integration with a variety of host systems. With a drop tolerance from 1.5m to concrete, the Zebra Symbol barcode scanner uses laser scan technology with a scan rate of 100 scans per second.\n- Stand included\n- Dimensions: 6” x 2.5” x 3.34” (H x W x D)\n- Interfaces supported: USB, RS232, Keyboard Wedge, IBM 468x/9x\n- 5-year warranty","domain":"optical_engineering"}
{"url":"https://nekoosa.com/products/clariguardtm-security-films","date":"2023-06-02T11:39:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648635.78/warc/CC-MAIN-20230602104352-20230602134352-00319.warc.gz","language_score":0.7862364649772644,"token_count":241,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__169841053","lang":"en","text":"Clariguard™ Security Films\nSecurity films provide highly tamper resistant personalization solutions for financial card and secure identification needs. Through extensive testing and proprietary manufacturing techniques, our laser engravable film is optimized for superior image quality and production versatility.\n- Available in Polycarbonate, PETg and Tritan® Co-Polyester\n- Available in clear, laser engravable clear, white and custom colors\n- Specially formulated laser engravable films allow for laser imaging at higher production speeds\n- Available in matte/fine matte, matte/polish, and matte/velvet\n- Deliver a higher quality product at reduced operating costs\n- Gauges from .002” to .020”\n- Machine readable travel documents\n- Security documents\n- Driver's licenses\n- National I.D. cards\n- Credit cards\nSecurity Films Clear\nClear and laser engravable, transparent films providing excellent clarity and sharp laser imaging.\nSecurity Films White\nBright white core layer for excellent printability.\nSecurity Films Custom Colors\nCustom colors available upon request in all materials.","domain":"optical_engineering"}
{"url":"http://www.cp.jku.at/research/projects/SocialFilm/project.html","date":"2024-03-02T16:59:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475833.51/warc/CC-MAIN-20240302152131-20240302182131-00164.warc.gz","language_score":0.8848223090171814,"token_count":218,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__194221705","lang":"en","text":"Project Title: SocialFilm\nSponsor: Austrian Research Promotion Agency (FFG),\nIndustrial Partner: emotion3D\nDuration: 5 months (July 2017 – November 2017)\nAbstractCurrent smart phones and digital cameras allow users to create high-quality images easily without the need for professional expertise, e.g., in the field of photography. Based on fully automatic image analysis (for example, detection of closed eyes, automatic white balance, etc.), the device supports the user in taking pictues. In contrast, the creation of good short videos with the smart phone is still not easy to accomplish for the amateur users, since good camera movement puts significantly higher demands on them. To overcome this issue, emotion3D is working on a fully automated software tool to support users in the video production process on smart phones. This tool analyzes the quality of the video during recording, using intelligent image analysis (such as Optical Flow or Visual Odometry) and IMU sensors. It can identify and alert the user about aesthetic mistakes, e.g., poor camera direction or scene composition.","domain":"optical_engineering"}
{"url":"http://c03.apogee.net/mvc/home/hes/land/el?utilityname=demo&spc=ieh&id=19534","date":"2019-12-16T11:14:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575541319511.97/warc/CC-MAIN-20191216093448-20191216121448-00418.warc.gz","language_score":0.9320334792137146,"token_count":139,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__174899951","lang":"en","text":"There are three main uses of outdoor lighting:\n- Increase safety and security\n- Extend the use of outdoor areas\n- Enhance the appearance of the home\nAs will all lighting, outdoor lighting has benefited from the application of light emitting diode (LED) alternatives to incandescent, compact fluorescent (CFL), and various high intensity discharge (HID) forms like mercury vapor, halogen, and sodium.\nLEDs are an ideal outdoor light source because they have significantly longer lifespans (up to 10 years), use substantially less energy, can have their light pattern carefully controlled to prevent light pollution on neighboring areas, have excellent color rendition, and perform well in colder temperatures.","domain":"optical_engineering"}
{"url":"https://maker.pro/blog/the-first-electrically-driven-topological-laser-resolves-device-manufacturing-flaws","date":"2023-03-24T19:09:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945288.47/warc/CC-MAIN-20230324180032-20230324210032-00156.warc.gz","language_score":0.9259751439094543,"token_count":1092,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__172309023","lang":"en","text":"Researchers from the Nanyang Technological University in Singapore and the University of Leeds in the UK have developed a new type of laser technology that will revolutionize the manufacturing of lasers.\nThe research in electrically driven topological lasers lasted two years and conducted by a team of physicists and engineers from NTU Singapore and material scientists from the University of Leeds.\nWhich included Professor Qi Jie Wang, Associate Professor Baile Zhang, Associate Professor Yi Dong Chong, DrYongquan Zeng, Professor Giles Davies, Professor Edmund Linfield, and Dr Lianhe Li.\nThe goals of this research were to combat current laser manufacturing flaws by exploring the topological states of matterâleading to the creation of the first electrically-driven topological laser.\nBasis of the Research\nThe concept for a topological laser comes from the theoretical discoveries of topological phases of matter done by scientists D. J. Thouless, F. D. M. Haldane and J. M. Kosterlitz in the 1980s, for which they were awarded a Nobel Prize in Physics in 2016.\nEven though topological phases are a recent concept in the physics of condensed matter, as theyâre emerging as the potential basis of future technologies in the fields of optics, photonics, and quantum computing.\nTopological phases of matter imply that materials called topological insulators (which are materials that have insulating properties in their interior but have a highly conductive surface), exhibit topological features allowing particular particles (such as photons and electrons) flowing within the material to round corners and circumvent manufacturing flaws without scattering.\nNanyang Technological University researchers. Image Credit: Nanyang Technological University.\nManufacturing Defects in Semiconductor Lasers\nToday, much of our technology depends on electrically-driven semiconductor lasers. Devices based on these lasers utilize light to read, write, transmit and receive data to perform a specific function.\nEveryday devices that use semiconductor lasers include barcode scanners, laser printers and laser disk readers. Lasers are also commonly used in research, manufacturing and in medical fields.\nNevertheless, these types of lasers exhibit manufacturing flaws that leave many produced batches with unusable laser modules due to the imperfections that arise in manufacturing and packaging. This happens because laser light scatters when it encounters defects in the material itâs traveling through.\nSuch a problem is unavoidable when it comes to conventional semiconductor lasers due to their design and manufacturing processes.\nThe First Electrically-Driven Topological Laser\nTo combat the problems that arise in laser manufacturing, the team from NTU and Leeds applied the scientific phenomenon of topological phases of matter to a practical electronic device.\nThe team developed a new laser design that incorporated a valley photonic crystal which is a photonic analogue to the topological material known as a two-dimensional valleytronic insulator.\nLike regular semiconductor lasers, this laser is fabricated out of a semiconductor wafer, with the key difference being the design of its structure. The topological laserâs microstructure is comprised of quasi-hexagonal holes, drilled into the semiconductor wafer and arranged in a triangular lattice, making it highly compact.\nLight passing through the microstructure of the topological laser is capable of propagating within the lattice in a unidirectional matter. Rounding the sharp edges of the triangles without reflection accumulating light energy and forming a laser beam.\nThis occurs thanks to the photonic topological material used to manufacture the laser module.\nA notable characteristic of this laser is that it emits light at terahertz frequencies, which on the electromagnetic spectrum; found between microwaves and infrared radiation.\nA close up image of the topological laser prototype. The prototype measures 4mm in length, a Singapore 5 cent coin was placed above it for size comparison. Image Credit: Nanyang Technological University.\nNot the First Topological Laser\nThis laser is not the first topological laser, but the first electrically driven topological laser. Researchers from the Technion - Israel Institute of Technology and the University of Central Florida in the USA developed an optically driven topological laser in 2018 by using multiple optical resonators achieving the effect of laser light rounding corners without scattering.\nThe problem with conventional implementation of the laser was its size, due to the multiple modules it was comprised of, as well as its reliance on another laser (a semiconductor one), to power it.\nEmerging Technologies Based on the Research Findings\nEven though this type of technology is in its very early stages it shows a lot of promise. The field of optics and photonics is essential in current and future technology and can potentially benefit a lot from topological lasers.\nTo begin with, this technology can potentially eliminate a lot of wasteful manufacturing practices and reduce the amount of defected laser modules.\nMoreover, due to the terahertz frequencies of the light outputted by the laser, it might find new uses in sensor technology, computing and high-speed optical and wireless data transfer. Which includes areas such as quantum computing, Li-Fi communications, LIDAR and similar technologies.\nAll in all, as new research is conducted and this technology gets funding, we might see topological lasers become the basis of our future communication and computing devices.","domain":"optical_engineering"}
{"url":"https://venusmedical.ie/ndyag-laser/","date":"2024-04-22T03:36:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818072.58/warc/CC-MAIN-20240422020223-20240422050223-00589.warc.gz","language_score":0.9193649291992188,"token_count":209,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__90787219","lang":"en","text":"Our long-pulse NdYAG laser produces a wavelength of 1064nm, ideal for several applications, including vascular treatments, hair removal, and skin rejuvenation.\nThis Coolglide laser was developed in the U.S. by world leading laser company Cutera.\nCoolglide can treat small and larger, reticular, vessels in the legs, without the need for compression afterwards. Our 1064nm NdYAG laser also targets deeply enough to bypass the epidermis (top layer) and destroy hair follicles.\nUnlike many other lasers and IPL, the 1064nm laser is one of the only lasers that is safe for treating black skin for hair removal. The short pulse width setting with this laser allows us to deliver laser energy to heat the skin to tighten pores, reduce redness, and smooth skin.\nLaser Genesis, a relaxing laser facial, treats the skin in this way by firing thousands of laser pulses into the skin with no pain or discomfort.","domain":"optical_engineering"}
{"url":"https://gkc.zov-kaliningrad.ru/radiometric-dating-detector-212.html","date":"2021-01-27T12:18:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704824728.92/warc/CC-MAIN-20210127121330-20210127151330-00206.warc.gz","language_score":0.920089840888977,"token_count":352,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__208738531","lang":"en","text":"In general, objects emit infrared radiation across a spectrum of wavelengths, but sometimes only a limited region of the spectrum is of interest because sensors usually collect radiation only within a specific bandwidth.\nThermal infrared radiation also has a maximum emission wavelength, which is inversely proportional to the absolute temperature of object, in accordance with Wien's displacement law.\nThese letters are commonly understood in reference to atmospheric windows and appear, for instance, in the titles of many papers.\nNear-infrared is the region closest in wavelength to the radiation detectable by the human eye.\nInfrared spectroscopy examines absorption and transmission of photons in the infrared range.\nInfrared radiation is used in industrial, scientific, and medical applications.\nSunlight, at an effective temperature of 5,780 kelvins, is composed of near thermal-spectrum radiation that is slightly more than half infrared.\nAt zenith, sunlight provides an irradiance of just over 1 kilowatt per square meter at sea level.\nOf these natural thermal radiation processes only lightning and natural fires are hot enough to produce much visible energy, and fires produce far more infrared than visible-light energy.\nInfrared thermal-imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.\nThermal-infrared imaging is used extensively for military and civilian purposes.\nSlightly more than half of the total energy from the Sun was eventually found to arrive on Earth in the form of infrared.\nThe balance between absorbed and emitted infrared radiation has a critical effect on Earth's climate.\nThe three regions are used for observation of different temperature ranges, and hence different environments in space.","domain":"optical_engineering"}
{"url":"https://omniastore.co.uk/products/lazy-lie-down-reading-glasses","date":"2021-01-26T21:43:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704803737.78/warc/CC-MAIN-20210126202017-20210126232017-00717.warc.gz","language_score":0.921028733253479,"token_count":139,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__131492894","lang":"en","text":"Are you a bookworm or know someone who is?\n- Material: Polycarbonate fiber, durable, light and easy to carry.\n- In line with optical standards, the image is tilted by 90° through the reflection of the mirror, so that the vertical angle of the image can be seen in the horizontal position.\n- When lying down, you can also read books, watch TV, watch the computer, realize study, work and entertainment in bed, and effectively reduce the pressure on the neck.\n- The shape is similar to ordinary glasses, you can wear your own glasses at the same time, if you wear nearsighted glasses, reading glasses, or astigmatic glasses.","domain":"optical_engineering"}
{"url":"https://adamin.org/sunglasses-that-help-your-eyes-as-well-as-your-look/","date":"2019-08-25T18:41:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027330786.8/warc/CC-MAIN-20190825173827-20190825195827-00524.warc.gz","language_score":0.9437780380249023,"token_count":541,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__140573934","lang":"en","text":"Sunglasses That Help Your Eyes as Well as Your Look\nChildren are particularly weak to eye harm from UV rays. The lens inside their eyes remains to be clear and their pupils are wider than in adults, which permits extra damaging rays to achieve the retina the place visible photos must focus if we’re to see them. Once the retina is broken, visible impairment is more likely to be everlasting.\nHere’s what to contemplate when selecting lenses that may shield your eyes from the hazards of UV overexposure.\nAll sun shades, even these bought at greenback shops, ought to now include full (400 mm) UV safety, though costlier lenses present higher visible readability. The shade of the lens doesn’t matter, although gentle tints are usually not as efficient for folks whose eyes are very delicate to vivid gentle. If the label says UV 400, chances are high it’s true or very near it.\n[Wirecutter’s suggestions for affordable sun shades.]\nMichael Stoff, the optician-proprietor at Eye Shoppe on 7 in Brooklyn, the place I’ve purchased all my new glasses, advised me that the polycarbonate materials of most sunglass lenses and lenses made from glass naturally blocks UV rays, however UV safety needs to be added to plastic lenses. If unsure concerning the UV safety afforded by your present glasses, ask an optician who has a spectrometer to examine them.\nIdeally, each common eyeglasses and sun shades ought to have anti-reflective coatings on either side of the lens, which is why I spent a bit of additional to get Crizal lenses that shield my eyes from UV gentle coming from behind me in addition to from the entrance.\nI additionally bought photochromic lenses — greatest identified on this nation because the model Transitions — in all glasses I’d put on outdoor. They have wonderful UV safety, Mr. Stoff mentioned. When uncovered to UV, even on hazy days, the lenses darken, then clear in a minute or so once you go indoors. The newest model of Transitions lenses, referred to as Gen eight, launched July 10, supply the perfect safety, he mentioned.\nHowever, photochromic lenses don’t darken in a automobile as a result of windshield glass blocks UV gentle. And they don’t get as darkish as dark-tinted sun shades so might not work nicely sufficient for eyes very delicate to daylight. But should you put on contact lenses, now you can get photochromic contacts, marketed by Acuvue since March.","domain":"optical_engineering"}
{"url":"https://codefortomorrow.org/buy-sc-fiber-optic-patch-cable-industrial-purposes/","date":"2023-12-04T13:49:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00766.warc.gz","language_score":0.9302154183387756,"token_count":292,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__236024215","lang":"en","text":"Are you looking for the best connector cables? Well, this is no longer an issue to find the recommended products in markets. Experts always recommend the buyers to consider their technical and industrial requirements before choosing a connector cable. It has been noticed that sc fiber optic patch cable has become an important factor in the communication industry. This cable is among the top rated options to develop high speed networks and communication standards. Below we will discuss the uses and features of this cable.\nWhere these are used?\nThese cables are used anywhere with the computers and datacenters. In most of the situations, IT professionals categorize the utilization of these fiber optic patch cables according to the project requirements. For example, these fiber optic patch cables are important for the computer work stations. On the other hand, these are also installed where connect distribution service is offered. It means that datacenters always utilize these cables for the specific purposes.\nGet high quality fiber optic patch cables:\nIt is now very simple to access the materials. Cozlink should be your first priority in this matter. This manufacturer has made it easy for the datacenters and service providers to see top quality patch cables for the communication networks. It is recommended to see the latest stock in order to choose best quality materials including the accessories (APC, UPC and PC). Whether you are looking for single mode fiber optic patch cables or multimode cables, we have wide range of materials available here.","domain":"optical_engineering"}
{"url":"https://schuttindustries.com/XVENTURE/Accessories/Camping-(2)/RIGID-SR-M2-DRIVING-BEAM-LED-LIGHT","date":"2024-04-14T17:18:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.19/warc/CC-MAIN-20240414161724-20240414191724-00036.warc.gz","language_score":0.9178531765937805,"token_count":474,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__183572206","lang":"en","text":"The XVENTURE XV-2 trailer is born of military engineering. It' sets the standard by which all others are judged so get your's today.\nThe XV-3 is the ultimate compact, fully-featured off-road trailer. It’s the perfect choice for any tow rig, including Jeeps and lighter SUVs.\nThe Rigid Industries SR-M LED Light is one of the most versatile lighting products on the market today.\nSR-M (Single Row Mini) - The Rigid Industries SR-M LED Light is one of the most versatile lighting products on the market today. This compact LED light can be used for virtually any lighting application - from off-road to agriculture. The SR-M utilizes the same technology as our D-Series, but is half the size and incorporates half the number of LED's. The size and shape of the SR-M LED Light allows it to fit almost anywhere. Its cast aluminum housing and polycarbonate lens are sealed against the elements for years of trouble-free operation.\nSpecter Optics - Our patented Specter optics system features 50% more LED's than our Hybrid optics in the same footprint and is specifically designed to cover more area. By incorporating a reflector with no facets or orange peel, the Specter optics system produces an intense, smooth beam with minimal wasted light.\nDriving Pattern - Our engineering team designed the Driving version of our Specter optics system to project light not only far, but also wide. This light utilizes a narrow, oval-shaped reflector that projects both spot and flood beam patterns. Rather than a conical beam, this technology creates an oblong beam that maintains a bright center hot spot, as well as incredible horizontal dispersion.\nQuality Construction - Our circuitry is designed in-house to be more powerful, be more efficient, and generate less heat. Our durable aluminum housings feature custom, over-sized heat sinks which keep the temperature down and allow our LED's to run cooler and brighter. All Rigid Industries LED lights receive a high quality powder coat finish, a custom-molded rubber seal, and an unbreakable, scratch resistant lens. Rigid Industries LED lights are engineered to withstand whatever you, the road, or nature can throw at them.\nIncludes Mounting Brackets and Necessary Hardware","domain":"optical_engineering"}
{"url":"https://honorheightsvet.com/services/laser-surgery/","date":"2019-01-21T02:47:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583745010.63/warc/CC-MAIN-20190121005305-20190121031305-00388.warc.gz","language_score":0.9415421485900879,"token_count":348,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__71885317","lang":"en","text":"What Is A Laser?\nA laser is a device that produces a very strong and focused beam of light. One little known fact is that our surgical laser produces a beam that is even more powerful than a similar-sized beam leaving the surface of the sun!\nYears of experience in human and veterinary medicine went into the design of the Aesculight lasers, which were made specifically to provide superior care for pets. Ask your veterinarian about CO2 laser surgery.\nWhy Pet Laser Surgery?\nTraditional surgery with a scalpel or scissors can bruise or crush soft tissue, while a powerful, concentrated laser beam has the unique ability to instantly vaporize or “erase” unhealthy tissue, as well as make incisions. The laser minimizes pain, swelling, and bleeding often associated with surgery. The beam simultaneously kills any bacteria in its path (i.e. bactericidal effect). In addition, during CO2 laser surgery, only an intense beam of laser light touches the tissue, which reduces the risk of potential post-operative infection even more. While cutting, ablating or coagulating tissue, the laser seals capillaries, small blood vessels, lymphatics, and nerve endings (i.e. it has hemostatic, antiedemic and analgesic effects). Sealed nerve endings mean more comfort for the patient after surgery, and sealed lymph nodes mean less swelling post-operatively. The surgeon can adjust the size and power of the laser beam to achieve the desired degree of control over the tissue removal process, and the laser is equally adept at incisions, excisions, and ablations.\nFor more information on laser surgery please give us a call (918)682-6652","domain":"optical_engineering"}
{"url":"https://gearpop.com/tag/best-lens-for-nikon-dslr","date":"2024-02-24T13:46:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474533.12/warc/CC-MAIN-20240224112548-20240224142548-00752.warc.gz","language_score":0.8402608036994934,"token_count":427,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__183690987","lang":"en","text":"New ultra-high ratio zoom lens AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II for use expressly with Nikon DX-format digital-SLR cameras.Dimensions (DxL) Approx. 3.0 x 3.8″ (7.62 x 9.65 cm).A number of unique Nikon technologies have been developed for, and applied to, including a high zoom magnification of 11.1x, a Vibration Reduction (VR II) image stabilization system that provides camera shake compensation equivalent to increases in shutter speed by four stops, and a Silent Wave Motor (SWM), as well as a zoom lock switch. Designed expressly for use with Nikon digital-SLR cameras, exceptional image performance is assured. As the compact AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II covers an extremely wide range of focal lengths (18-200mm, equivalent to 27-300mm in 35mm format; a zoom magnification of 11.1x), it offers excellent versatility for various scenes that include portraits and landscapes. The addition of a zoom lock switch allows photographers to secure the lens barrel at its minimum length, eliminating the natural gravitational effect that can draw the barrel downward during transport. This lens offers superior optical performance in a compact size of just 77 x 96.5 mm, despite a high zoom magnification of 11.1x. Nikon’s Silent Wave Motor (SWM) assures fast and quiet autofocusing. The Vibration Reduction system (VR II) provides camera shake compensation equivalent to increases in shutter speed by four steps.What’s in the box: Nikon AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II Zoom Lens, 72mm Snap-On Lens Cap, LF-1 Rear Lens Cap for F Mount Lenses, HB-35 Lens Hood, CL-1018 Lens Case, 1-Year Nikon Warranty (5-Year Extension is Available After Registration with Nikon).","domain":"optical_engineering"}
{"url":"http://virtualhideout.net/virtual-reality-headset/","date":"2019-11-14T18:34:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668534.60/warc/CC-MAIN-20191114182304-20191114210304-00394.warc.gz","language_score":0.884486734867096,"token_count":270,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__36391590","lang":"en","text":"Virtual reality headset is a device that any user can wear on their head and experience a virtual reality world. The virtual reality world is not the same world of the wearer. It is a completely new reality.\nWhat Virtual reality headset do is that they provide a separate image for each eye which gives the illusion of a 3D world. They have sensors that track the head motion (gyroscopes, accelerometers, structured light systems), stereo sound, eye tracking sensors, and game controllers.\nIt is used in many fields like a medical field where they train students on how to perform a surgery. It allows them to perform essential procedures in a virtual, controlled environment.\nIt can be used also in the military field where they train soldiers without any harm.\nList of virtual reality headsets\n- Oculus Rift: developed by Facebook and Contains Accelerometer, gyroscope magnetometer\n- PlayStation VR: developed by Sony interactive entertainment and Contains gyroscope magnetometer\n- Samsung Gear VR: developed by Samsung Electronics and Contains Accelerometer, gyroscope, proximity sensor\n- Microsoft Hololens: developed by Microsoft.\n- Google Daydream View.\n- Samsung ExynosVR III: under development.\n- Samsung Odyssey: developed by Samsung Electronics and Contains Accelerometer, gyroscope, proximity sensor, and IPD sensor.","domain":"optical_engineering"}
{"url":"https://www.kivitv.com/news/yes-you-really-need-eclipse-safety-glasses-to-view-the-total-solar-eclipse","date":"2022-05-25T08:11:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662580803.75/warc/CC-MAIN-20220525054507-20220525084507-00395.warc.gz","language_score":0.9740474224090576,"token_count":408,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__166700593","lang":"en","text":"Some have spent months preparing where they'll watch the total solar eclipse on Aug. 21, but many haven't considered how they'll safely view it.\nTo not risk permanent eye damage, solar eclipse glasses are necessary.\n\"Your retinas can get damaged by the sun's rays,\" College of Idaho Associate Professor of Physics Katie Devine said. \"You may not actually even know it at the time it's happening. You may wake up the next morning and start seeing spots, so you can possible permanently damage your eyes by looking at a partial total eclipse.\"\nThose viewing from the Treasure Valley need to keep eclipse glasses on during the entire duration of the event, but those in the path of totality have a small window of time when they can safely remove their glasses.\n\"During totality is the only time that it's safe to look at the eclipse without safety wear,\" Devine said.\nDevine said you'll know when you're in that safe zone when none of the sun is visible and your view is totally dark.\nIf you already have eclipse glasses, check to make sure they're dark enough and meet the American Astronomical Society's safety suggestions. Your glasses should be labeled \"ISO 12312-2\".\n\"If you put your eyewear on and you can see anything through it, it's not dark enough,\" Devine said. \"The only thing you should be able to see is the sun.\"\nThat means most of your homemade solutions, such as a pair of sunglasses, won't be enough to protect your eyes.\n\"The thing about eclipse glasses is they not only block the visible light, which is the stuff you can see, but they also block ultraviolet light,\" Devine said.\nParents can also make sure their children are protected by practicing safe viewing procedures.\nDevine says you should look away from the eclipse during totality to remove your glasses and look down again before putting them back on. That way, you won't be tempted to remove them before totality is achieved.","domain":"optical_engineering"}
{"url":"https://annlov.net/hdmi-lcd-digital-microscope-with-ips-screen-dcorn-7quot-coin-microscope-for-coin-collection-supplies-view-entire-coin16mp-soldering-microscope-with-lights-for-adults-32gb-card-included-p00108p1.html","date":"2024-04-12T17:14:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816045.47/warc/CC-MAIN-20240412163227-20240412193227-00226.warc.gz","language_score":0.8600637912750244,"token_count":258,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__146155547","lang":"en","text":"Features and Benefits of the Dcorn DMR-02H LCD Digital Microscope\n- 7-inch 1080P IPS display for a more detailed and clearer picture\n- Upgraded 16MP camera sensor allows you to capture high-definition photos and record smooth videos\n- Support HDMI and USB output to connect to larger displays for a larger and more detailed image\n- The upgraded 8.5-inch bracket allows for an unobstructed view of the entire coin（If you cannot see the entire coin, please adjust the resolution to 1980 * 1080 then you can see the entire coin）, and also increases the operating space for soldering.\n- Super convenient remote control with photo, video, zoom in and zoom out functions that eliminates the potential for microscope shaking and ensures clear and stable images\nDcorn is committed to bringing you better products and an excellent experience.\nUpgraded 1 -View Complete Coins Effortlessly\n8.5-inch Elevated Stand for Effortless Whole Coin Viewing，If you cannot see the entire coin, please adjust the resolution to 1980 * 1080 then you can see the entire coin\nExplore the micro world and develop an interest in the natural sciences","domain":"optical_engineering"}
{"url":"https://www.mochithings.com/products/1797","date":"2018-01-18T02:20:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887054.15/warc/CC-MAIN-20180118012249-20180118032249-00659.warc.gz","language_score":0.9353253841400146,"token_count":174,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__225016979","lang":"en","text":"Shop Winter Clearance now! $75+ Free shipping on US orders.\nTake a Look\nThis Product is Currently Backordered\nDetails & Features\nThe Hello Kitty Fuji Instax Mini 7 Multi Lens is a uniquely designed set of lenses for your Instax Mini 7 camera! Each purchase comes with multi lens and a close up lens. You can use the close up lens for self photo shots (a mirror is also attached to the lens) and for taking photos at close distances. A multi lens is also included in this set where you can take a photo of one object and it will come out as three objects on the exposure and will shape like a triangle! It’s a very unique effect! Please check out the 2nd photo to see a sample of this effect.\nPlease note: This purchase does not include the camera as shown in the photo.","domain":"optical_engineering"}
{"url":"https://www.operationrevamp.org/Sys/Store/Products/9211","date":"2024-02-26T15:27:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474660.32/warc/CC-MAIN-20240226130305-20240226160305-00476.warc.gz","language_score":0.9349299073219299,"token_count":348,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__157387085","lang":"en","text":"These custom made filters allow photographers to take UV (blacklight) images using common flashes and a bit of black electric tape. These filters allow film speeds as low as 100 for close up work and exposure speeds as high as 1/400th of a second when used with higher ISOs.\nA few points about these filters:\n- Seconds are generally caused by errors in the kiln temperature or errors when applying the blacklight glass powder to the base. This creates filters that are thicker and block some UV light along with visible light. Oddly, it can also create tiny holes in the blacklight glass that enhances photos by adding a touch of visible light.\n-High end flashes are not recommended as they generally have internal filters or coatings that absorb the UV light before it leaves the flash. These can be removed, but the cost is likely to be far higher than buying a basic off brand flash.\n-The best way to mount the filter to your flash is to use black electric tape. Place the filter on the flash head and use four short strips about 1/16th of an inch over the edge of each filter to hold it to the flash and block any white light from existing the flash.. Then wrap a fifth strip around the head of the flash to finish the attachment.\n-Absolute dark is not required to use these filters for most photo sessions. Enough ambient light to use your auto focus will generally not interfere with the black light exposure.\n-Experimentation has shown us that the best starting setting seems to be 1/200 of a second at f6.3 and 400 ISO.\n-TTL metering does not work with black light. You will need to experiment with manual settings.","domain":"optical_engineering"}
{"url":"http://delmarvisionandcosmetic.com/vision-correction/contact-lenses/synergeyes-contact-lenses.html?ada=1","date":"2018-06-23T02:17:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864919.43/warc/CC-MAIN-20180623015758-20180623035758-00002.warc.gz","language_score":0.8744302988052368,"token_count":608,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__234419585","lang":"en","text":"SynergEyes contact lenses are hybrid contact lenses, or lenses made of both \"hard\" and \"soft\" materials. The outer rim of a SynergEyes contact lens (called the \"soft skirt\") offers all-day comfort and prevents debris from collecting under the lens. The inner area of the lens is rigid yet breathable, promoting eye health while providing clear, crisp vision for wearers with astigmatism, nearsightedness and farsightedness. SynergEyes contact lenses also address less common eye problems such as keratoconus, corneal ecstasia and pellucid marginal degeneration.\nThe rigid center of the lenses utilizes the natural layer of tears existing between the anterior surface of the eyeball lens and the cornea to neutralize blurry vision attributed to astigmatism. All-soft contact lenses cannot provide the kind of high-definition, crystal-clear vision provided by SynergEyes hybrid lenses. Complemented by the ability of the \"soft skirt\" to stabilize positioning of lenses on the eyes, SynergEyes is also the perfect vision solution for athletes who worry about their contact lenses becoming dislodged during rigorous activity. In addition, wearers of SynergEyes benefit from not dealing with \"toric lens rotation\", which causes blurring of vision in wearers of traditional hard or soft contact lenses.\nSilicone hydrogel contact lenses allow beneficial amounts of oxygen to circulate through the lens and into the cornea, making SynergEyes the perfect choice for those who wear their contacts for long periods. All contact lenses contribute to a condition called hypoxia, or a significant reduction in oxygen supply to various parts of the body. When the cornea cannot access adequate levels of fresh oxygen, corneal swelling, reddened eyes, blurry vision and burning occurs, along with an increased risk of suffering eye infections.\nAdditional benefits of increased oxygen supply to the cornea include:\nInitially, our eye doctor will recommend wearing your SynergEyes contact lenses for no more than six hours for the first four days and then eight hours on day five. If it feels like something is irritating your eyes while wearing SynergEyes contact lenses, always remove, clean and rinse the lens with appropriate solutions. At your follow-up visit, report any issues you may be having with the lenses to us. During this visit, we will evaluate the comfort level and fit of the lenses and examines your vision acuity as well.\nLASIK Special: Only $3,495 for Both Eyes\nRetail Price: $4,995\nSign-up using the form or call us at 844-800-EYES (844-800-3937) to schedule your complimentary Consultation.\nLavenburg Medical Group\n103 Chesapeake Blvd, Suite C\nElkton, MD 21921\nLavenburg Medical Group\nOne Centurian Drive, Suite 114\nNewark, DE 19713","domain":"optical_engineering"}
{"url":"http://wihomeworkdyjo.newsglobal.us/optical-distortion-inc-price-strategy.html","date":"2018-08-16T23:30:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221211316.39/warc/CC-MAIN-20180816230727-20180817010727-00034.warc.gz","language_score":0.8622439503669739,"token_count":908,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__47515250","lang":"en","text":"Optical distortion, inc optical distortion, inc (odi) odi should price its lenses at $028 cents per pair odi should engage in price skimming by entering the. Related posts clark material handling group-overseas: brazilian product strategy (d) pricelinecom: name your own price optical distortion inc (a. Optical distortion, inc the patent expires after 3 years odi’s pricing strategy doesn’t face significant short optical distortion. Check out our top free essays on optical distortion to help you 2014 – 2020 report price (pon) market trends, business strategies and opportunities. Check out our top free essays on optical distortion case to help you write your some strategies to employ when negotiating with a chinese price maker, and non. View essay - odi from mac 504 at illinois tech optical distortion, inc exclusive summary optical distortion, inc is a company that offers contact lens for chicken.\nOptical distortion, inc (odi) marketing strategy target market value proposition product price promotion placement (distribution. Optical distortion inc (a) case solution, a new product, contact lenses for chickens is founded by a small company to be introduced to the product market an entry. Case optical distortion case solution,case optical distortion case the primary problem of the company is to determine the pricing strategy and the price amount of. 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Optical distortion, inc marketing strategy price the company agreed on the minimum price of $008 per pair optical distortions, inc case study.\nOptical distortion marketing plan - online strategies for optical distortion, inc and the documents similar to optical distortion marketing plan - online sample. Optical distortion - download as cannibalism saves on chicken feed no competition high price cannot be re-used big potential entry strategy formulating. Optical distortion inc is a small the analysis in this paper provides recommendations for odi on their marketing and pricing strategy to digital and optical. Optical distortion,inc case study solution things to be done for the case:-break even analysis economic value strategy management- fundas.","domain":"optical_engineering"}
{"url":"https://lumawerx.com/product/h10-9140-9145-led-bulb-lw80-cree/","date":"2024-04-19T14:54:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817438.43/warc/CC-MAIN-20240419141145-20240419171145-00460.warc.gz","language_score":0.8930761218070984,"token_count":270,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__139919652","lang":"en","text":"Modern – Newest LED bulb to the CREE family! The exclusive 80 watt output CREE bulbs have been in the making for a year to improve light output as well as optics over the LW30 30 watt CREE LED bulbs. These bulbs are designed to work without any modification in H10, 9140 and 9145 applications.\nQuality – These H10 LED’s feature 16 high power 5 watt CREE chips; Perfect for replacing your factory dull incandescent fog lamps in your car or truck, giving you 360 degrees of light. The LumaWerx™ LW80 is the brightest plug-and-play H10 LED bulb on the market today.\nBright – With a whopping 80 watts of output per bulb, these bulbs make excellent replacements to your factory fog lights. These bulbs are perfect to go into virtually any fog light housing because they produce very little heat with a crisp, pure white light output or amber which is great for fog lamp applications.\nEase – 100% plug-and-play; no splicing or cutting into your factory wiring harness. While producing a massive 80 watts of output and only drawing a fraction of a standard bulb, rest assured you wont be producing nearly as much heat so no worries about melting wiring or housings with these plug and play LED bulbs.","domain":"optical_engineering"}
{"url":"https://gut.bmj.com/content/52/suppl_4/iv30","date":"2021-04-10T23:19:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038059348.9/warc/CC-MAIN-20210410210053-20210411000053-00001.warc.gz","language_score":0.9349186420440674,"token_count":4828,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__188431541","lang":"en","text":"Gastrointestinal tumours are usually associated with a poor prognosis, as most are only diagnosed at an advanced stage. Every effort to improve intraluminal diagnosis in gastroenterology must therefore be aimed at diagnosing gastrointestinal tract tumours at the earliest stage possible.\n- fluorescence techniques\nStatistics from Altmetric.com\nImproved training for physicians conducting endoscopy is a fundamental element in the early detection of gatrointestinal tumours. Familiarity with the adenoma-carcinoma sequence in colorectal carcinoma, for example, or the metaplasia-dysplasia-carcinoma sequence in adenocarcinoma of the distal oesophagus, leads to a more consistent examination technique.1–4 Practical training in endoscopy has now reached a high standard throughout the world, although it should by no means be regarded as already representing the ultimate that can be achieved.\nOn the other hand, the quality of the endoscopes used is vital for early recognition of gastrointestinal tumours. Although the introduction of video endoscopy some 25 years ago was regarded as the peak of endoscope development, a further quantum leap has been achieved in image resolution in the past 5 to 10 years, with the introduction of high resolution (megapixel) and magnification endoscopy.\nSupplementary procedures such as chromoendoscopy and fluorescence techniques (FT) can further contribute to optimal diagnosis, helping to diagnose not only early carcinomas but also preliminary stages such as high grade intraepithelial neoplasia (formerly known as “severe dysplasia”).\nThe first promising reports on FT were already published more than 10 years ago.5,6 Interest primarily focused on fluorescence spectroscopic techniques. From the point of view of clinical gastroenterologists, however, the vital requirement was to obtain a real time endoscopic image—not receiving point by point fluorescence measurement, but rather recognising differences in fluorescence directly on the monitor when viewing extensive areas of tissue. Among fluorescence imaging methods, there is currently competition among techniques that use endogenous fluorophores (autofluorescence) and those that use exogenous fluorophores (known as photodynamic diagnosis, PDD) to stimulate fluorescence. The aim in all these efforts is to achieve fluorescence optically guided biopsy sampling of suspicious areas. This is of clinical significance above all in long segment Barrett’s oesophagus, and for screening in patients with long term chronic inflammatory bowel diseases. Random biopsy sampling is currently still the standard procedure here.\nPRINCIPLES OF FLUORESCENCE DIAGNOSIS\nThe principle of fluorescence diagnosis is based on the interaction between light at a specific wavelength and fluorophores in tissue. Light sources that can be used include incoherent light sources (for example, xenon) or monochromatic laser light. When light penetrates tissue, it causes not only reflection and absorption, but also fluorescence. Depending on the fluorophore used, only light at a specific wavelength is maximally absorbed, and in turn variably emitted. As a result of the stimulation process, blue stimulation light, for example, loses some of its energy and is therefore given off as longer wavelength red fluorescence. “Colour differences” between normal and neoplastic tissue arise here as a result of endogenous and exogenous fluorophores.7\nAutofluorescence is based on the stimulation of endogenous fluorophores, particularly the coenzymes of the respiratory chain (NADH, collagen, flavin, etc). As their excitation and emission bands are quite broad and often show spectral overlapping, it is still difficult to distinguish between these fluorophores. It is only when a suitable stimulation wavelength is selected that the individual fluorophores causing autofluorescence can be distinguished. A number of different pathological processes—mainly neoplasias, but also inflammation and ischaemia—affect the metabolic, oxidative condition of the cells and thus their autofluorescence. In addition, the thickness of the mucosa or epithelial layer can change the autofluorescence. After stimulation with ultraviolet or short wavelength light, these fluorophores emit longer wavelength light. Thickening of the mucosa produces a weakened green autofluorescence in the collagen and elastin contained in the submucosa. The predominantly green fluorescence (450–550 nm) in the submucosa (collagen) is masked by dysplastic/malignantly transformed mucosa, the red fluorescence of which (600–700 nm) then predominates. The main advantage of the autofluorescence technique is the fact that it is not necessary to administer a chemical substance to the patient before fluorescence can be detected. Administering a drug has considerable medical and also legal implications, quite apart from the tremendous costs involved in the process of obtaining registration and approval for an exogenous fluorophore as a medication. However, the faintness of endogenous fluorophores, the complexity of the interactions between the numerous endogenous pigments that are present, and the varied effects of different tissue qualities on autofluorescence behaviour, all make sensitive and sophisticated detection systems necessary to obtain meaningful information.6–12\nIn contrast with autofluorescence, various exogenous photosensitisers—classically porphyrins—are used when fluorescence is induced by a drug in the technique known as PDD. These can be applied either for imaging or for spectroscopy alone. The decisive difference between these and endogenous fluorophores is that there are evidently substances that accumulate more, with relative selectivity, in neoplastic cell systems. For diagnostic purposes, 5-aminolevulinic acid (5-ALA) is currently the substance attracting the greatest interest. It is not really a photosensitiser, but rather a precursor in heme biosynthesis. The reduced ferrochelatase activity in neoplastic cells has a decisive role here for selective accumulation in malignant tumours in comparison with normal tissue. Exogenously administered 5-ALA bypasses an inhibitory feedback mechanism in heme biosynthesis and leads to accumulation of protoporphyrin IX (PpIX) in neoplastic tissues. Selective accumulation of 5-ALA or PpIX in neoplastic tissues was initially demonstrated in skin tumours, and later also in numerous other types of organ tumour. However, the use of exogenous substances that produce a stronger and clearer fluorescence signal because of comparatively specific accumulation also has some disadvantages. In addition to the legal and medicolegal aspects already mentioned, administration of 5-ALA is associated with brief but non-negligible photosensitisation of the skin, so that the patient needs to be protected from sunlight for about one day.13–17\nEndoscopic fluorescence spectroscopy procedures usually use lasers as light stimulation sources, with wavelengths between 300 and 480 nm. The light is introduced into the gastrointestinal hollow organs via glass fibres under endoscopic vision. The fluorescence light can return via the same fibres, or via separate light conductors. A fluorescence spectrometer detects the wavelength dependent signals. Background subtraction techniques and ratio calculations for two or more wavelengths are usually used. Particularly when only autofluorescence is being used, sophisticated algorithms are needed to calculate the spectral contributions of different fluorophores to derive a value that indicates the presence or absence of neoplasia in the tissue area being investigated. One evident drawback of spectroscopy is the fact that only small areas of tissue can be examined. The optical probes used to measure reflectance spectra through an endoscope sample about 0.05–1 mm2 of tissue at each site. The total amount of tissue examined spectroscopically, even with multiple measurements, is thus very small compared with fluorescence imaging, and it is possible that regions of neoplastic tissue may be missed because of sampling errors. In addition, the endoscopist needs to detect suspicious areas first before the probe can be used for fluorescence spectroscopy.5,6,10–12,17,18\nFrom the clinical viewpoint, a real time endoscopic fluorescence imaging system is of course highly attractive, as this is the only way of achieving complete fluorescence diagnosis of large, continuous areas of tissue. However, the method has low sensitivity and specificity rates, and these deficiencies have to be compensated for by using special cameras with image intensifiers, or time integration facilities. Two commercial systems are currently available:\nThe Xillix Laser-Induced Fluorescence Endoscopy Gastrointestinal (LIFE-GI) system (Xillix Technologies, Vancouver, Canada) is based on capturing autofluorescence signals stimulated with blue light at a wavelength of 437 nm. Using fibrescopes, two image intensifier cameras attached to the endoscope outside the body are used to capture autofluorescence signals in the green and red spectral ranges, which are fused to create a real time “red-green” image. Generally, there is less green fluorescence in neoplastic tissue than in normal tissue, while red fluorescence is stronger in neoplastic tissue than in normal tissue. The unwieldy clinical operating characteristics of this system have in the meantime been substantially improved in a second version (LIFE II). However, the new system still only uses fibre endoscopes, and not video endoscopes.8,9,19,20\nThe second real time fluorescence system is based on the use of exogenous fluorophores, and detects 5-ALA-induced PpIX fluorescence. The process was initially developed by the Storz company in Tuttlingen, Germany, and was known as D-Light; in the meantime a basically similar system is also available from the R Wolf company in Knittlingen, Germany (Combilight PDD). For 5-ALA fluorescence endoscopy, the set up is illustrated in figure 1. The excitation light is a short arc xenon lamp with a specially designed yellow short pass filter (440 nm). Blue and conventional white light are delivered to the organ segments via the illumination bundle of a standard fibrescope at 200 mW. The fluorescence light is collected by the endoscope’s imaging bundle. An observation filter (long pass, 450 nm, Schott, Germany) is mounted on the eyepiece of the endoscope. The light is designed to transmit not only tissue autofluorescence and PpIX fluorescence, but also part of the excitation light, for better orientation during the examination. For documentation, a video camera with target integration is attached to the flexible fibreoptic endoscope. 5-ALA is usually supplied as hydrochloride 98% pure powder. The patients receive a solution of ALA in mineral water (dose 10 mg/kg body weight) orally four to eight hours before fluorescence endoscopy. After ingesting the ALA, the patients are kept in slightly darkened rooms for 36 hours. Sensitisation with ALA, which is transformed to PpIX in neoplastic tissue in higher concentrations than in non-malignant tissue, leads to a characteristic red fluorescence on exposure to blue light, as PpIX has a strong absorption band in the violet spectral range (380–420 nm). The red fluorescence emitted presents two bands at 635 and 700 nm.13–16\nClinical experience in gastrointestinal endoscopy\nMost experimental ex vivo studies and clinical experimental studies have been carried out using fluorescence spectroscopy.5,6,11,17 Various spectral and fluorescence imaging systems have been used to analyse the fluorescence data. The results have shown sometimes substantial differences between in vitro and in vivo conditions. In individual human malignant tumours, autofluorescence emission spectra show peaks in the 630–690 nm wavelength range.18 In ex vivo studies of oesophageal carcinomas (adenocarcinoma), high levels of fluorescence activity were observed in laser induced autofluorescence (stimulation wavelength 405 nm) in normal tissue at 500 nm, with smaller peaks for normal tissue, dysplastic tissue and malignant tissue at 630 nm and 700 nm.17 When a ratio is calculated between the fluorescence activity at 500 nm and 630 nm, highly significant differences are found between malignant and benign Barrett’s mucosa.17 Recent in vivo studies in oesophageal and gastric tumours show specific changes in the autofluorescence spectra of malignant tumours in comparison with the corresponding normal tissue.12 Using complex mathematical algorithms, a sensitivity of 97% and a specificity of 95% can be calculated for the autofluorescence technique. Autofluorescence measurements in the colon have shown that there are reduced fluorescence intensities in adenomatous neoplasia, in comparison with normal colonic mucosa, in the spectral range 500–550 nm. To improve tissue identification using autofluorescence in the colon, excitation-emission matrices (EEMs) have been recorded with excitation wavelengths from 250 nm to 500 nm in steps of 10 nm, with corresponding fluorescence emission up to 700 nm. Using 5-ALA as an exogenous fluorophore, it was possible to distinguish clearly between tumours in Barrett’s oesophagus and Barrett’s metaplasia, with the typical PpIX peaks at 635 nm and 705 nm.13 (Figure 2).\nA review of the available literature reports shows that in the early 1990s, the published studies almost exclusively used fluorescence spectroscopy based on laser induced autofluorescence. Initially, these were mainly experimental and ex vivo studies, but in recent years in vivo studies have also appeared, some of which have also used exogenous fluorophores. More than half of the published studies have focused on the large bowel, followed by studies in the oesophagus.\nWith the development of the fluorescence imaging system, scientific interest concentrated more on the oesophagus—not least because of the increasing clinical significance of Barrett’s carcinoma, as well as a recognition that fluorescence procedures for detecting or differentiating between colonic polyps were too elaborate or were not genuinely clinical relevant. Early colonic neoplasias can be recognised much better using high resolution endoscopy, with or without chromoendoscopy, than was possible 10 or 20 years ago. By contrast, intraepithelial neoplasias (high grade, low grade) in Barrett’s oesophagus cannot usually be recognised, even using the above methods, so that there is a genuine and significant need for diagnostic improvement here. This is underlined by the fact that new local endoscopic treatment options as photodynamic therapy and mucosal resection are available now.21,22 The same applies to the detection of dysplasias in patients with chronic inflammatory bowel diseases, in whom conventional diagnostic procedures have limitations. A third diagnostic problem situation is early recognition of gastric carcinomas. In contrast with sporadic colorectal carcinoma, conventional endoscopy is not capable of achieving early recognition of the preliminary stages of cancer here.\nThe new fluorescence imaging systems allow both conventional “white light” endoscopy and fluorescence endoscopy in one session. In addition, they permit full inspection of the area at risk—for example, the large bowel. This is an advance over point by point measurements in which the measurement process is random, equivalent to a random biopsy procedure, unless the endoscopist has already recognised a lesion, so that targeted fluorescence measurement can be carried out, equivalent to a “virtual biopsy,” with a subsequent “optically guided biopsy.”\nThere have few reports on the use of the LIFE-GI autofluorescence system, with publications mainly being concerned with ex vivo studies or case reports on clinical experience.8,9,19,20,23 In an ex vivo study, a group of Japanese authors have pointed out that the LIFE-GI system is probably unsuitable for detecting the undifferentiated type of gastric carcinoma, as the detection rate for these lesions was significantly poorer than for the differentiated type.9 In an initial small series, Haringsma et al8 found that the LIFE-GI system was slightly superior to random biopsy in Barrett’s oesophagus. This was confirmed in a comparable series.20 However, on the basis of personal communications from researchers using the LIFE-GI method experimentally in everyday clinical work, the system seems to be extremely elaborate and rather unpractical. The fluorescence unit as a whole is extremely expensive because of the use of a laser system, and this is a further limitation on its clinical use. The later prototype, LIFE-II, has been substantially improved,19 and a research group in the Netherlands will be reporting on the diagnostic yield in the near future.24\nIn contrast with the LIFE-GI system, fluorescence imaging systems based on 5-ALA use xenon lamps as the stimulation light source, instead of lasers. The system as a whole is easy to handle and reasonably priced. On the other hand, as mentioned earlier, the costs and effort associated with 5-ALA are not negligible. In addition to case reports, a series of 47 patients with Barrett’s oesophagus in whom the technique was used was published last year.15 Only 10 of the 47 showed dysplasia, and previously unidentified dysplasias were found using the D-Light system in three of the patients. Our own research group is reporting this year on 43 patients with high grade neoplasia and early Barrett’s cancer who were examined using random biopsy under white light vision and also with 5-ALA-induced fluorescence endoscopy.13 The patients were studied twice—with conventional endoscopy and four quadrant biopsies in the first series (group I), and with fluorescence detection (photodynamic diagnosis) in the second series (group II). Firstly, four quadrant random biopsy specimens every 2 cm were taken during routine video endoscopy (Fujinon 450 HR, Fujinon, Willich, Germany). In the second series, two to eight days later, PDD was performed three hours after oral sensitisation with ALA. Biopsies were taken of areas with positive red fluorescent tissue (one to four specimens per lesion) and of non-fluorescent areas (two specimens per patient). In group I, a total of 448 quadrant specimens were sampled, while in group II, 175 samples were taken. Overall, the PDD technique led to a significantly lower total number of biopsy specimens being obtained per patient compared with random biopsies (n=448 v 175, p<0.0001). In addition, the average number of specimens taken with PDD was much lower than with random biopsies (4 v 9, p<0.0001). In relation to the length of the Barrett’s segment, the difference was significant only in patients with long segment Barrett’s oesophagus (p<0.0001. PDD led to a significantly higher proportion of biopsy specimens containing dysplasia or early cancer despite the smaller number of samples obtained per patient. Significant differences between the two techniques in the detection of HGD or early cancer were present in both short segment and long segment Barrett’s oesophagus. The sensitivity was 81.7% for PDD, while a sensitivity rate of 25.9% (p<0.001) was found using random biopsy in the study. No dysplasia, early cancer, or inflammation was detected in fluorescence negative areas of Barrett’s mucosa, and consequently no false negative fluorescence findings were obtained. False positive fluorescence was associated either with microscopic inflammation of the mucosa or with low grade dysplasia. Although these results are still preliminary in nature and need to be confirmed by other research groups, they suggest that ALA induced fluorescence diagnosis can be reliably used for recognition of discrete mucosal abnormalities such as high grade dysplasia and early cancer in Barrett’s oesophagus. Open questions that remain undoubtedly include the optimal dose of 5-ALA and whether topical application is capable of being as effective as oral administration.13,15\nThe results of one pilot study conducted in Germany on 5-ALA fluorescence detection in the colon has now also been published.16 5-ALA fluorescence detection was found to be equivalent to whitelight endoscopy for detecting neoplasias. As mentioned earlier, the use of fluorescence for screening in patients with chronic inflammatory bowel diseases is of much greater interest than for detecting neoplasia in the inflammation free colon. The preliminary data reported by the group in Regensburg, Germany, are very promising here (H Messmann, personal communication). However, the limitations of in vivo fluorescence diagnosis in the large bowel include the problems of fecal contamination and the high level of autofluorescence of fecal residues. On the other hand, any sort of inflammatory activity in the mucosa also produces difficult to interpret fluorescence effects. In my view, the use of fluorescence endoscopy in the large bowel will in the future continue to be useful and feasible mainly for scientific purposes, because of the limited range of indications and the substantial obstructive factors present. Widespread clinical use is unlikely in my opinion. By contrast, increased use of the technique to detect neoplastic lesions in the stomach could lead to it becoming an established method, as the obstructive factors mentioned above are not present there.9,23\nTo sum up, the clinical indications for fluorescence endoscopy will in the future be limited mainly to patients with Barrett’s oesophagus. Furthermore, possible indications could be the screening of patients with long term ulcerative colitis and chronic inflammatory bowel diseases, and perhaps also patients who are at increased risk for gastric carcinoma. Spectroscopic procedures still have higher sensitivity and specificity rates for identifying neoplastic lesions than imaging fluorescence systems. On the other hand, they are more elaborate and only permit point by point fluorescence measurements. From the clinical point of view, only real time endoscopic fluorescence imaging systems represent a practicable solution. The systems that are currently available still have weaknesses, and will need to undergo thorough clinical evaluation once they have been technically optimised. In comparison with incoherent light sources, laser based methods seem to be too elaborate and expensive, and the former are likely to replace them. In addition, fluorescence detection will have to be possible in the future using high resolution video endoscopes. Continued use of fluorescence endoscopy only on the basis of the fibrescopes so far available will soon become anachronistic. Ultimately, whether and to what extent fluorescence endoscopy will find its place in clinical gastroenterology will only be decided in comparison with the other imaging options available (high resolution endoscopy, magnification endoscopy, chromoendoscopy, etc).\nIf you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.","domain":"optical_engineering"}
{"url":"https://www.medisun.de/en/professional-products/photodynamic-therapy/medisun-pdt-9000.html","date":"2021-05-07T16:23:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988796.88/warc/CC-MAIN-20210507150814-20210507180814-00180.warc.gz","language_score":0.921985387802124,"token_count":993,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__216843426","lang":"en","text":"medisun PDT 9000 - The new painless PDT\nmedisun PDT 9000 is an innovative light treatment system for the painless exposure of photodynamic therapy (PDT) with polychromatic spectra from a high power LED light source.\nThe main indications are actinic keratoses, which are reported for a steady increase worldwide. Actinic keratoses are a preliminary stage to skin cancer, usually associated with excessive exposure to the sun during life, e.g. in outdoor occupations.\nTherefore, the workmen`s compensation boards in Germany have recognized actinic keratosis as an occupational disease for many professions. Patients in these cases have a lifelong right to get paid the treatment costs.\nConventional red light PDT has been established for many years as it has proven to be very effective. However, the therapy protocols used are usually associated with great pain for the patients.\nWith the outdoor daylight PDT with natural sunlight, an alternative therapy protocol has been developed that contains all wavelengths of light and is less painful. However, the actual irradiance and the spectral composition of the light will depend on some uncontrollable factors such as the season, time of day, temperature, elevation above sea level, geographical location and weather conditions.\nIn certain weather conditions, e.g. below + 10 ° C, the outdoor daylight PDT can not be performed at all or the effect can not be calculated and is not reproducible. In addition, sunscreen must also be applied. However, the outdoor daylight PDT is considered to be less painful than the conventional red light PDT.\nThe new medisun PDT 9000 represents the logical further development of the outdoor daylight PDT and the red light PDT.\nmedisun PDT 9000 uses programmable multicolor high power LEDs. These can produce many monochromatic and polychromatic light mixtures.\nWith the newly developed medisun PDT therapy protocol, a painless exposure with an optimized daylight spectrum with only one hour of exposure time is possible, which is just as effective as the conventional red light PDT.\nThis has now been confirmed by a published clinical study by Prof. Dr. Thomas Dirschka and Prof. Dr. Rolf-Markus Szeimies.\nThe efficacy and freedom from pain during the exposure was also confirmed by a clinical study by Prof. Dr. med. Hans Michael Ockenfels (Hanau).\nThe integrated PC control allows different therapy protocols to be used.\nThe integrated red light PDT meets the requirements of known photosensitizers (e.g., AMELUZ, 5-ALA, etc.) for the treatment of actinic keratoses.\nThis therapeutic protocol, proven by a clinical trial, allows painless exposure and shows excellent efficacy with only one hour of exposure.\nmedisun PDT 9000 is the only PDT system to have an integrated wood light function for fluorescence diagnosis, which enables optimal diagnosis and success control, which can also be billed separately. Only in the wood light all actinic keratoses become visible to the human eye.\nWith the integrated blue light spectrum, you can treat inflammatory acne forms supportive. .\nMedisun PDT 9000 uses a selective blue light (410 - 450nm). The blue light acts by stimulating the bacterial porphyrins and formation of free oxygen radicals directly destroying acne bacteria (Propionibacterium acnes), healthy skin is thereby spared. The irradiation time is 20 min. A series of 6 to 12 sessions about 2 to 3 times a week is recommended.\nWith the integrated affective disorder therapy (SAD), winter depression can be treated as an adjunct. The effect is achieved via a special flicker-free light with 10,000 lux over the eyes. The exposure time is 20 to 30 minutes.\nBy using medisun PDT 9000 it is now possible to perform the painless PDT exposure planned in your practice throughout the year.\nmedisun PDT 9000is equipped with a three-dimensional radiation field around the head. Single or multiple lesions (field carcinogenesis) up to the entire head can be treated individually and homogeneously in an exposure procedure. Excellent tolerability and consistently excellent therapy results are achieved.\nThanks to the programmed PC control, the medisun PDT 9000 remains future-proof, regardless of which light spectrum will be of importance in the future.which light spectrum will be of importance in the future.\nAll medisun products are developed and produced in Brühl near Cologne.\nThe medisun systems are certified as medical devices according to directive 93/42/EEC by TÜV-Rheinland LGA Products GmbH.\nWe rely on tested quality - Made in Germany.\nMedisun PDT systems are already used in many university hospitals and dermatological practices.\nWe are happy to inform you competently and without obligation.","domain":"optical_engineering"}
{"url":"https://www.zest.org.mt/speakers/kristian-zarb-adami/","date":"2022-06-26T08:55:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103037649.11/warc/CC-MAIN-20220626071255-20220626101255-00105.warc.gz","language_score":0.9474295973777771,"token_count":253,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__192299813","lang":"en","text":"Associate Professor @ University of Malta & Director @ the Institute of Space Sciences and Astronomy\nProfessor Kristian Zarb Adami did his Ph.D. in data analysis at the University of Cambridge specialising in image processing techniques applied to the radio and optical telescopes. Subsequently, he worked at STMicroelectronics for three years where he was responsible for developing the autofocus and zoom algorithms for mobile phone cameras. During his time at STMicroelectronics, cameras developed as part of his team became some of the most sold cameras in the world, making STMicroelectronics the largest camera manufacturer at the time. In 2007, Kristian Zarb Adami joined the University of Oxford and the Square Kilometer Array project where he is responsible for building the largest data processing system of any science instrument ever built. After a brief stint in MIT, working with Max Tegmark on designing a sensitive radio instrument to detect the first stars in the universe, he opened the Institute of Space Sciences and Astronomy (ISSA) at the University of Malta which specialises in large data processing systems and machine learning data driven discovery. Today Professor Zarb Adami spends most of him time designing telescopes and scientific facilities to be placed on the far-side of the moon.","domain":"optical_engineering"}
{"url":"https://takilab.com/recruiting-phd-students/","date":"2023-12-01T22:00:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100308.37/warc/CC-MAIN-20231201215122-20231202005122-00799.warc.gz","language_score":0.9132692217826843,"token_count":237,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__186734058","lang":"en","text":"Dear PhD candidates,\nTaki lab is cordially invite you as a PhD candidate in our laboratory. Taki lab is one of the most active lab of photopolymerization kinetics and network analysis of UV curable resins, which are used in semiconductor, electronics, optics and cosmetic industries. Moreover, we are studying bubble nucleation, growth and coalescence kinetics in molten polymers and coals for steel industry.\nWe are studying the filed of polymer processing, photopolymerization and functional materials of various themes:\n- Twin screw extrusion and flow modeling\n- Sheet molding compound by in situ polymerization and glass fiber, carbon fiber composites\n- Photopolymerization and its application of optical films\n- Photopolymerization kinetics and gel networks\n- Sequential coating and curing of UV curable resins\n- Optical films\nWe are offering worthwhile industrial collaboration research with Japanese company, which is a good opportunity to know working in Japan.\nPlease contact Associate Professor Kentaro Taki in the following address: email@example.com\nSincerely yours, Kentaro Taki","domain":"optical_engineering"}
{"url":"https://www.jwoled.com/k-product","date":"2024-04-21T20:13:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817819.93/warc/CC-MAIN-20240421194551-20240421224551-00261.warc.gz","language_score":0.9239649772644043,"token_count":199,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__126473182","lang":"en","text":"WHAT IS OLED\n[Organic Light-Emitting Diode]\nOrganic light-emitting diodes (OLEDs) are displays that use self-luminous phenomena. Organic materials are arranged between the two electrodes, and electrons and holes injected recombine in the organic material, and electricity flows to the fluorescent organic compound. OLED has been developed as a dream display that can replace LCD with all necessary elements such as high speed response, wide viewing angle, high image quality and wide operating temperature range.\nIn the OLED market, Korea's display industry is playing a leading role in the world. Samsung Display is leading the display industry for small and medium-sized OLED products and LG Display is leading for large OLED products.\nPRODUCT_OLED LAYER STRUCTURE\nA tandem structure in which two or more independent OLED devices are connected in series is mainly used in large-area OLED industries such as OLED TV, OLED lighting, and automobile OLED display.","domain":"optical_engineering"}
{"url":"https://www.scandinavianphoto.se/nyheter/sigma-kompatibelt-med-canon-eos-r-och-nikon-z","date":"2023-05-29T15:18:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644867.89/warc/CC-MAIN-20230529141542-20230529171542-00207.warc.gz","language_score":0.7425481081008911,"token_count":205,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__3568770","lang":"en","text":"Sigma kompatibelt med Canon EOS R och Nikon Z\nSigma Optics annonserar kompatibilitet med Canon EOS R och Nikon Z\nCanon EOS R:\nWe would like to announce that, as of this moment SIGMA’s interchangeable lenses for Canon mount in the current lineup do not have any issues with general operation when they are used on the “EOS R”, released by Canon Inc., via their “Mount Adapter EF-EOS R”.\nMer informations finns på Sigmas nyhetssida\nWhen SIGMA’s interchangeable lenses in the current product lineup, listed below, are used in combination with the Nikon “Z7” and their “Mount Adapter FTZ”, both AF and AE operate without any issues.\nMer information finns på Sigmas nyhetssida","domain":"optical_engineering"}
{"url":"https://www.theglic.com/tools/visible-light-spectroscopy-theory","date":"2022-06-26T11:09:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103205617.12/warc/CC-MAIN-20220626101442-20220626131442-00103.warc.gz","language_score":0.9355013370513916,"token_count":991,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__249120569","lang":"en","text":"The basis of how visible light spectroscopy works and why it is so useful.\nSpectroscopy is the measurement of radiation intensity as a function of wavelength. There are many different kinds of spectroscopy! This tool is going to focus on visible light spectroscopy.\nColoured light is very often a mixture of different colours. A spectrometer splits the constituent colours of light apart (just like a triangular prism) and can then measure the intensity and strength of each colour.\nWhat comes out of a visible light spectrometer is called a spectrum. The horizontal axis is the wavelength of light. The vertical axis is the intensity at that wavelength.\nTo understand what spectroscopy is, we need to answer a couple of questions:\nLight can be viewed as electromagnetic radiation, waves on the electromagnetic spectrum, including radio waves, microwaves and infrared. Looking at a wave, the wavelength and frequency determine the nature of the light. Long-wavelength means short frequency and vice versa.\nElectromagnetic radiation in visible light contains quanta (tiny packets of energy called photons). Higher frequency light carries more energy than lower frequency light.\nA molecule is a group of atoms bonded together in some way (topic for another video). Quantum theory says that the energies of things are quantized. This means that molecules and atoms have discrete step-like energy states, and the molecule can only be in one of these states and not ‘in-between’ states.\nWhen molecules are exposed to the light of the right wavelength, they can be excited, leading to a change in bonding chemistry in the molecule and attaining an excited state. This excitation results in some light being absorbed.\nLight is not the only means of getting molecules excited. They can also be excited by other factors such as heat. When molecules relax from an excited state, they emit the energy associated with the relaxation, which can be given off as light or heat.\nThis is why the spectra of heated up molecules often consist of a series of sharp spectral lines, each due to light produced by a specific relaxation in the molecule between quantum states.\nBy examining the spectrum of light before and after it passes through a sample, the difference in the spectrum can be identified through examining spectra.\nLike this, we can get an idea of what absorptions are happening in the sample.\nMany molecules have particular absorption patterns associated with them, allowing us to see if they are in the sample.\nThe amount of light absorbed at a specific wavelength where absorption occurs also can tell us how much of a compound is in the sample, i.e. its concentration.\nIf there is more of a compound in a sample and it absorbs the light shone at it, the intensity will be lower the higher the concentration.\nAnother technique in spectroscopy is to excite a sample and then measure the emitted light due to the excited molecules relaxing. This works for fluorescent molecules and often is used for analysis of oils.\nVisible light absorption spectroscopy is used in a wide variety of ways, including:\nAnd many more!\nThis tool does not look at the practical use of a spectrometer but rather how you work with one. Check out our tool on building a spectrometer linked below.\nA typical workflow for spectroscopy is the following:\nIf the molecule you wish to test for is absorbing visible light, the following steps would be to identify at what wavelength it does this and the intensity at different concentrations.\nThis law relates the concentration of a substance in solution to the intensity of absorbance of light at a wavelength where absorbance occurs. Note that everything such as light source, container, distances, temperature, and surround light should be kept constant to compare measurements. Additionally, the law assumes all measurements have been done at the same wavelength.\nThe law states that the absorbance (the log (base 10) of the intensity of a blank sample light to that containing analyte) is proportional to the concentration of the absorbing analyte in the sample.\nTo use the law, a calibration curve must be set up. The absorbance at a specific wavelength is calculated for different analyte concentrations and a blank and a plot constructed.\nWhen a sample of unknown concentration is measured, the absorption at that wavelength can then be related to the concentration of analyte in the sample.\nSee the attached example document for an application.\nHave we got you excited about spectroscopy? Check out our tool on building one to start analysing your one samples!\nBunker, P. R., & Jensen, P. (1979). Molecular Symmetry and Spectroscopy — Volumes Publishing. NRC Research Press.\nSpectralWorkbench. (n.d.). Retrieved June 27, 2021, from https://spectralworkbench.org/","domain":"optical_engineering"}
{"url":"https://metashield.com/metashieldUV/","date":"2019-10-17T03:53:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986672548.33/warc/CC-MAIN-20191017022259-20191017045759-00322.warc.gz","language_score":0.9210554361343384,"token_count":166,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__145138385","lang":"en","text":"MetaShield400 is a durable thin film that employs unique nanoparticles designed to block UV wavelengths up to 400nm, while maintaining 91% optical transmission in visible wavelengths. The formula can be applied to glass along with most types of plastics, and is specifically designed for simple integration into high throughput manufacturing processes. The solution is easily spray coated and quickly dries using commercially available application methods.\nPlastics tend to discolor and degrade over time in sunlight, and clear plastics turn yellow and blurry. The patent-pending MetaShield400 formula helps protect plastics and extend their usable lifetime. By allowing product colors and features to be openly displayed without the risk of UV degradation, the MetaShield400 coating is an ideal solution for industries such as consumer packaging, cosmetics, outdoor furniture, spirits, museum glass, automotive, defense and many more.","domain":"optical_engineering"}
{"url":"http://permaflate.com/ledlyt2c.htm","date":"2017-09-25T22:09:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818693459.95/warc/CC-MAIN-20170925220350-20170926000350-00096.warc.gz","language_score":0.9482799172401428,"token_count":2778,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__121354721","lang":"en","text":"Digital camera basics\nThe digital camera truly relects the age in which we live. That is not a compliment to either. Development funds have been poured into making sure\nany half-wit can take a half-decent digital photo, and secondly\nno-one else can take anything better.\nThe problem is not any evil giant corporation, but a common substance commonly found in bulk beneath my bed - dust. An imaging chip is small, to save silicon, so any dust specks on it appear large in the finished picture. If you can remove a camera lens, in flies the dust. The camera lens is thus non-removable, so has to be power-zoomed to fill the frame with the subject. No-one can see fine detail on the little screen on the back, so auto-focus completes the package. Bingo - the half-decent digital photo. The professional digital cameras have a removable lens and manual focus, at the cost of staggering complexity. Every so often, at 100 US dollars a time, the owners return them to the makers to have the dust cleaned out of the inside. Slowly a really sensible and fully professional answer to the problem is emerging. The imaging chips are being made with a frame size of 24 x 36 mm, or the normal 35 film standard. On this giant chip, dust specks are tiny, and the problem goes away. Even if a professional camera were affordable, since the maximum chip area a microscope objective will illuminate is only about 6mm x 5mm, most of the big chip area is wasted.\nHigher maths - pixels and resolution\nResolution, both of lenses and imaging media (including film and silicon chips) is traditionally measured in lines per millimetre or lpmm for short. A target made of black lines on a white ground is photographed. The white spaces between the parallel black lines are the same width as the black lines, so the target could equally well be described as white lines on a black ground. The target is progressively distanced from the test camera, so the created image gets smaller. The smallest image on which the black/white line pattern can still be discerned is checked on a measuring microscope to see how many parallel black lines fit in 1mm of image. If the film can resolve more than the lens, you are testing the lens. If the lens outperforms the film, you are testing the film. For a long time now a 'good' lens has resolved at least 70 lpmm, and a high resolution film about 90 lpmm. Thick colour films like Kodak Gold are around 60 lpmm.\nA good photographic rule of thumb has been that photography to 70 lpmm is quite easily done. Anything better than the magic 100 lpmm is virtually impossible. Let us do some maths with a very common silicon imaging chip.\nAn imaging chip contains pixels, lying in parallel rows to create a rectangular array. An array roughly 3mm by 4mm can be found on the VGA sensor, used in all quality webcams. The pixel dimensions on the chip are 480 pixels high, and 640 pixels wide. The total number of pixels is thus\n480 x 640 = 307200\nThis chip is thus described as the 300,000 pixel VGA chip, and if you look at webcam specs, you will see this quoted.\n480 pixels in 3mm equals 160 pixels in 1mm, so you have 160 lines of pixels in the imaging chip per millimetre. You need a pixel line to hold the black line of the resolution test, and the pixel line beside it to hold the white separator. The maximum resolution of this chip is thus 160 divided by 2, or 80 lpmm. Plainly the chip designers read up on photography before starting. Most imaging chips are designed around this resolution. The Sony chip used in their base-model video cameras is specified as a 1/6 inch diameter sensor for 800,000 pixels. Most of their competitors use 1/5 inch or 1/4.5 inch for 800,000 pixels. If you calculate it out the Sony chip must have a resolution of well over 100 lpmm. They either have some marvellous lenses to match this resolution, or are simply scrimping on silicon. No comment.\nIf you check the 'background' section you will find photomicrographs taken on a good quality 300,000 pixel VGA webcam chip from Kodak, and they are pretty good, although the basic pixels of the images are not far below the surface. Any microscope objective covers 3mm by 4mm with room to spare. The next step up is the '1.3 Megapixel' chip, which was the ultimate in digital cameras a couple of years ago. If you work out the figures for a 6mm by 8mm chip, with 960 lines each holding 1280 pixels, you get 1,228,800 pixels. The same design rules have been followed as for the VGA chip, and the resolution is again 80 lpmm. A good Plan objective will image 6mm x 8mm right to the corners, so the classic '1.3 Megapixel' chip is perfect for photomicrography. A larger chip size than this is too big for the objective field, and the objective itself is pushing to resolve 80 lpmm, so adding more pixels to this size chip will not get you any more sharpness. For now, and for ever, a 1.3 Megapixel 6mm by 8mm chip is all that you need. As the years pass, until production of this elementary size stops, there will be slow improvements in colour quality and contrast handling.\nThe clean mathematics above is sullied by two games played by the digital camera makers. The first obstructs good photomicrography, but the second makes precise focusing possible. Both techniques concern manipulation of the pixels by the camera microprocessor after the image has been sucked off the sensor chip into the circuit board.\nIt is possible for the camera microprocessor to examine each side-by-side pair of pixels in an image, and make a good guess at what value a third pixel would hold, if it were located in between the pair. This value is of course the averaged value of the two real pixels round it. A whole image may then be built up containing generally four times the number of pixels as the original. At first view such an image is much less 'blocky', and more pleasing to the eye, but the interpolation process cannot add any more detail, and the result adds fuzziness to a photomicrograph, which helps nobody. If you really want to 'resample' the picture to more (or less) pixels, you can do it in the computer, as any photo-manipulation package has this facility.\nFor a long time, the VGA 300,000 chip was all cheap digital cameras could afford. Some makers incorporated interpolation into their product, generating a picture with four times the pixels of the sensor. The English language was subtly manipulated to suggest to as many customers as possible that the camera contained a 1.3 Megapixel chip, without actually saying so. The best example I found was Pixera, who made, and may still be making, a 5000 US dollar microscope camera containg a VGA 300,000 chip. The top line of their sales sheet says \"1.3 million real pixels\" in heavy type. At the end of the third page of the data sheet is a tiny line saying the pixels are interpolated from a VGA chip. D-Link sold quite a few VGA cameras as 1.3 Megapixel, but were a little more honest with the wording.\nThe first really cheap camera to contain a genuine 1.3 Megapixel imaging chip was used, of course, as the basis for our current microscope camera.\nA 2X digital zoom on a 1.3 Megapixel chip simply discards all but the centre 300,000 pixels, and blows these up to fill the viewing screen on the back of the camera giving a pseudo-telephoto effect. When such a picture is 'snapped' an interpolation (see above) is performed on these centre pixels to create a 'normal' 1.3 megapixel image of an enlarged subject. Nothing has been gained of course, and you might as well have left the digital zoom alone, and enlarged and resampled the centre of the picture in your computer if you wanted the same effect.\nIf you are focusing, as in photomicrography, using the LCD screen on the back of the camera, such a screen has a low resolution, normally 240 by 320 pixels, and makes 'guessing' of correct focus difficult. If you digital zoom on the point to focus on, the subjectively greatly enlarged image makes focusing relatively easy. The zoom is switched off again before the picture is taken. The digital zoom adds nothing to the normal digital camera but a selling feature, but does make focusing in photomicrography possible.\nPhotographic film has undergone research (and development of course) for nearly 150 years. Solid-state image sensors are comparatively recent. The new device is much more subject to 'highlight burnout' where areas receiving too much light just reset to blank white. This does not wreck the sensor, but it does wreck your picture. The Kodak webcam sensor has a very basic auto-exposure that just progressively turns down the sensitivity as the light level rises. The 1.3 Megapixel circuit we use is plainly much more of a hair-trigger device, and reacts intelligently to the inclusion in the picture of small bright areas. Basic beliefs have us wishing we could just turn off auto-exposure, but on balance it probably does more good than harm. On expensive digital cameras, the lens has a power-driven iris aperture control, which can actually reduce the light level reaching the sensor. If you can control the illumination manually, with a lens iris, or by turning the microscope illumination down, you can keep the auto-exposure in a light range where it does no harm.\nThe Infra-Red menace\nThe effect of Infra-Red (IR) just outside the visible spectrum has to be looked at in depth. All silicon-based sensors are much more sensitive to IR than they are to visible light. Unless the IR is removed from the incoming light, the picture loses most of its colour, turning into a purplish monochrome. Since the imaging lens is not corrected for IR, and in addition focuses it at a different point, unless the lens is stopped right down, the picture is unsharp as well. Unless you are after black skies, black eyes and white trees the IR must be filtered out.\nTo totally exclude the IR and leave the visible, normal filters are not adequate. An interference filter is required, in which a thin layer of coating, of a precise refractive index and thickness, is applied to the glass filter blank. Unwanted IR destructively interferes with itself at the coating interface, and visible light passes through. According to the Internet, scientific interference filters start at about 600 US dollars each. Most are made in the US, but Schneider, the formidable European optical maker, has a good range. Reduced-specification IR filters for general photography are unheard-of in Australia but common in the US. These are known as 'hot mirror filters'. The largest Photo dealer in Melbourne was unaware of this product, but it was in the Canon product listing. I ordered in this US-made filter. Surface quality was atrocious, and it cost 90 Australian dollars, but it cut the IR out as required.\nAn early digital camera made by Kodak actually came with a hot mirror filter, but since that time, because the lens is a fixture, the filter coating was applied to the back element of the camera lens for the cost, at manufacture, of a few cents extra. As soon as the fixed lens is removed, as in our camera, IR sensitivity once more is an issue. Normal microscope illumination systems are awash with IR. You can either put a hot-mirror filter over the light where it passes into the condenser (we have done this successfully) or alternatively fit a ledlyt to the microscope. This provides ideal photographic (and visual) illumination, and there is no IR at all generated by the ledlyt. Saying it again, unless you plan to fit a lens, or lenses, to our microscope camera to use it for technical photography as well, if you have a ledlyt installed, there is no need for a hot mirror filter.\nThe camera/computer connection\nWebcam/computer links are much harder to set up than camera/computer links, since the webcam is passing live video, which has to be displayed on a fairly modern system if you want a picture of reasonable size. USB is now the common connection to both, but all the camera needs to do is send the taken pictures down the wire to the computer. Various interfaces exist. The one we use is pretty common, in which the camera memory emulates an external hard disk. With the manufacturers software installed under Windows 98SE, normal drag-mouse type file extraction operated without trouble, but I had to get crafty when using DOS command-line techniques to download 130 pictures in one hit. The big surprise was running the camera and USB connection under Red Hat Linux 8. No extra software was needed to set it up. The internal Linux USB driver sufficed. Command-line bulk transfer of files was totally bug-free under Linux.","domain":"optical_engineering"}
{"url":"https://www.blackanklemunitions.com/products/holosun-he509t-rd-x2-red-dot-2-moa-dot-32-moa-circle-black/","date":"2023-10-01T08:11:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510810.46/warc/CC-MAIN-20231001073649-20231001103649-00361.warc.gz","language_score":0.8001334071159363,"token_count":399,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__200725270","lang":"en","text":"Holosun HE509T-RD X2 Red Dot, 2 MOA Dot, 32 MOA Circle, Black\nThe Holosun HE509T-RD X2 Red Dot, 2 MOA Dot, 32 MOA Circle, Black is a hard-use, nitrogen-purged enclosed LED sight designed for handgun applications. The HE509T-RD X2features a grade 5 titanium housing, Holosun’s Super LED with up to 50k hour battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake technology.\nThe X2 version adds improved glass clarity, Lock Mode, and a full Multi-Reticle System providing 2MOA dot only, 32MOA Circle only, or a Circle-Dot combination. HE509T-RD X2 includes an adapter plate for compatibility with rmr-style footprints. HE509T-RD X2 feature 12 intensity settings, two of which are compatible with night vision devices.\n- Optical Data\n- Reticle: 2 MOA Dot & 32 MOA Circle\n- Light Wavelength: 650nm\n- Reticle Color: Red\n- Parallax Free: Yes\n- Unlimited Eye Relief: Yes\n- Magnification: 1X\n- Multi-Coatings: Yes\n- Electronic Data\n- Power Source: Solar & Battery\n- Battery Type: CR1632\n- Battery Life (Hours): 50000\n- Brightness Setting: 10 DL & 2 NV\n- Physical Data\n- Window Size (in): 0.66 x 0.90\n- Dimension (in): 1.13 x 1.6 x 1.16\n- Weight (oz): 1.72\n*Note: 509T models include an adapter plate for RMR footprints. Please be aware that the adapter plate is not compatible with alternative RMR footprints which use threaded bosses such as those from Zev or Brownells.","domain":"optical_engineering"}
{"url":"https://i3.pte.hu/en/innovation/technology-offers/thermography-and-thermal-imaging-analysis","date":"2023-05-30T12:15:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645595.10/warc/CC-MAIN-20230530095645-20230530125645-00544.warc.gz","language_score":0.7810903787612915,"token_count":385,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__24138339","lang":"en","text":"In infrared thermography measurements, the thermal camera converts the invisible (to the eye) infrared radiation emitted by the object under test into a visible image. The thermal camera is in fact a spectral radiometer that measures the radiant energy emitted and, with appropriate calibration and considerations, can infer the temperature distribution of the surface under investigation. The advantages of thermographic temperature measurement:\nb. non-contact and safe (no dangerous radiation, but requires high power external excitation shields for the duration of the flash)\nc. results are relatively easy to interpret\nd. wide applicability\ne. often the only non-contact test device\nThermographic measurements can be divided into two broad categories based on the measurement setup:\na. Passive thermography: the temperature of the materials or structures to be tested differs naturally, \"by itself\", from the temperature of the environment\nb. Active thermography: an external excitation is required to induce the relevant temperature contrast, which can be in a reflection or transmission configuration\nPotential areas of application:\n1. Industrial and electrical equipment diagnostics\n2. Detection of hidden material defects\n3. Building thermography\n4. Leak detection\n5. Machine vision\nMain research areas:\n1. Pre-processing of thermal images, image sequences: smoothing, filtering and further processing.\n2. Quantitative evaluation of thermal images: set-up and numerical solution of inverse thermal models to determine certain material properties (e.g. thermal conductivity, heat capacity, etc.).\n3. Thermal imaging of semitransparent materials: e.g. study of the flow pattern of gases emitted in the detection range of the detector\nPécsi Tudományegyetem | Kancellária | Informatikai és Innovációs Igazgatóság 2021.","domain":"optical_engineering"}
{"url":"https://www.technosolar.com.au/what-are-mono-perc-solar-panels/","date":"2024-02-22T03:12:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473690.28/warc/CC-MAIN-20240222030017-20240222060017-00060.warc.gz","language_score":0.9144675135612488,"token_count":1049,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__68688468","lang":"en","text":"What Is PERC Technology?\nPERC technology to put pressure on traditional solar cells in supply chain\nStrong global demand for higher-efficiency modules is driving the growth of PERC technology, like HJT and IBC that are expected to gain market share from 2017 onwards. PERC will become a mainstream technology by 2020, as it occupies the leading position among the competing new technologies. It is being increasingly adopted by top cell manufacturers upgrading part of their existing in-cell lines into PERC or booking orders for new PERC lines.\nWhat are PERC solar cells?\nPERC can stand for either Passivated Emitter and Rear Cell or Passivated Emitter and Rear Contact. At its core, a PERC solar cell is simply a more efficient solar cell, meaning that solar panels built with PERC cells can convert sunlight into usable electricity more easily. Solar Panels Brisbane made from PERC solar cells typically perform better than traditional panels in both low-light conditions and high temperatures. PERC technology boosts efficiency through the addition of a layer to the back of a traditional solar cell, which provides several benefits to the cell’s production.\nHow are PERC solar cells different from standard solar cells?\nA PERC solar cell is not much different in construction from a typical photovoltaic solar cell. Both types of solar technology use silicon wafers to generate a flow of electrons using incoming solar radiation, and the overall construction of the cell types is very similar. The main difference between PERC cells and typical monocrystalline photovoltaic cells is the integration of a back surface passivation layer, which is a layer of material on the back of the cells that provides three main benefits that boost cell efficiency.\nHow does a back surface passivation layer lead to gains in solar cell efficiency? Here are the three ways the passivation layer in a PERC solar cell increases overall efficiency:\n1. Reflection of light back through the cell\nA back surface passivation layer reflects light that passes through the silicon cell without being absorbed back into the silicon, giving the solar cell a second absorption attempt. This reflection of light means that more incoming solar radiation will end up being absorbed by the silicon cell, thus the cell becomes more efficient.\n2. Reduced electron recombination\nThe addition of a back surface passivation layer reduces “electron recombination” in the solar cell. Simply put, electron recombination is the tendency of electrons to recombine, which causes a blockage in the free movement of electrons through the solar cell. This inhibition of free electron movement leads to less-than-optimal cell efficiencies. In a PERC solar cell, electron recombination is reduced in order to bump up efficiency.\n3. Reduced heat absorption\nThe third benefit from a PERC solar cell is the reflection of certain wavelengths of light. A silicon wafer in a solar cell can only absorb light in wavelengths up to 1180 nanometers (nm), and higher-wavelength light waves pass through the silicon and are absorbed by the solar panel’s metal back sheet, creating heat. When solar cells are heated, they operate at lower efficiencies. The back surface passivation layer in PERC solar cells is specially designed to reflect light with a wavelength above 1180 nm, reducing the heat energy in the solar cell and consequently increasing efficiency.\nPERC solar cell manufacturing\nOne of the biggest reasons why PERC technology can be so powerful is the minimal investment it takes to begin manufacturing PERC solar cells instead of standard monocrystalline solar cells. In order to produce a PERC cell,\nThere are two additional manufacturing steps needed:\n– Application of the back surface passivation layer\n– Laser/chemical etching to open small pockets in the passivation layer\nThese two steps don’t add significant costs to the solar cell manufacturing process and result in a higher quality, more energy-dense solar cell. A classic barrier to new solar cell technology is the cost of new equipment production, and PERC solar cells require very little monetary investment to upgrade to a better product.\nBenefits of PERC technology for solar shoppers\nSolar panels built with PERC technology allow for more energy-dense solar installations. This means that you can generate the same amount of energy using fewer PERC solar panels than they would with more standard solar panels. Consequently, by needing fewer solar panels for your installation, your costs can be reduced. Additionally, the fewer panels you need, the more flexibility you have on your roof to position your panels. If suitable roof space is limited, using PERC solar panels or any high-efficiency panel product can make a solar installation capable of the power you need a reality.\nReducing the number of solar panels you need has the added benefit of bringing down the balance-of-system (BOS) costs for your solar panel installation. BOS costs are generally any costs involved in solar installation components that are not the solar modules themselves. Inverters, racking and wiring all factor into your BOS costs, and the fewer panels you need, the fewer complementary components you’ll need as well.","domain":"optical_engineering"}
{"url":"https://icsr.iitpkd.ac.in/node/456","date":"2023-09-24T09:47:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506632.31/warc/CC-MAIN-20230924091344-20230924121344-00226.warc.gz","language_score":0.9147656559944153,"token_count":384,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__5757589","lang":"en","text":"The experimental facility consists systems for studying flames and laser diagnostic setup. The lab is equipped with a high pressure compressor (45 bar), 1 m3 air receiver, air-dryer with flow lines for delivery to the setups in the lab. Fuel supply from a cylinder bay is also available. Flow control is achieved uing Alicat mass flow controllers (MFC) of various ranges. A high capacity exhaust system is also in place for handling of product gases from combustion experiments.\nThe laser diagnostic capabilities include a Q-smart NdYAG pump laser and a Sirah dye laser, with the accessories like energy monitor and collimator attached in line, to measure the output energy and to create a laser light sheet respectively. The PIV laser is a 200 mJ double cavity pulsed Nd:YAG laser of 532 nm output wavelength. The laser is synchronised using a LaVision PTU X. Fluorescence imaging is carried out using a CCD camera (Imager SX 6M) for intensifying the photon count. Image acquistion and processing is done through Davis 8.0. In addition an Andor 750 mm focal length spectrograph is also available for carrying out spectroscopic studies. A Hamamatsu PMT is employed to record image instensity. A He-Ne laser and Si Photodetectors are being procured for line-of-sight measurements. Optics like mirror, filters and optomechanical components like posts, lens holders etc are available.\nThe following techniques can be conducted with the existing equipment\n- Particle Image Velocimetry\n- Planar Laser Induced Fluorescence\n- Laser Induced Incandescence\n- Extinction measurements\nA counterflow diffusion flame burner has been designed and fabricated with a contoured nozzle. The burner can generate a wide range of flames of different strain rates with varied fuels.","domain":"optical_engineering"}
{"url":"https://8020forums.com/the-advantages-and-disadvantages-of-a-linear-ccd-array/","date":"2022-10-05T23:54:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337680.35/warc/CC-MAIN-20221005234659-20221006024659-00503.warc.gz","language_score":0.9272573590278625,"token_count":1101,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__162319807","lang":"en","text":"A linear CCD array is a simple device that takes a photograph of a moving object. Its design makes it ideal for outdoor use. The array's large-sized pixels are easy to store, and the CCDs have good dynamic range, meaning that it can capture many images in one second. As each photon passes through the system, it produces a charge that emitted by the object. The photon-induced charge is accumulated in the depletion region, which causes it to shift horizontally towards the camera's image sensor.\nThe smallest CCD in a linear CCD array has a 100-mA maximum output current. This allows it to be used in low-light conditions, but the smallest CCDs are only capable of detecting a few milliseconds of exposure, so they are inconvenient for nighttime observations. The best linear CCD detectors have a wide dynamic range and a linear pixel pitch of at least 20 mm.\nA linear CCD array consists of a row of image sensor elements. Light is passed through the photosites and causes them to acquire a charge proportional to the illumination. The photosites then transfer these charge packets to an analog shift register (ASR) and charge detector. At the same time, another exposure is taking place. This process is repeated several times until the correct exposure has been achieved. However, there are some drawbacks to a CCD with this design.\nA linear CCD array is an expensive investment, so it's important to find a detector that's right for your needs. The LARRY USB3648+ offers cost-effective performance and is compatible with most spectrographs. The LARRY series uses proven Ocean Optics electronics and software, so it's compatible with the spectrograph you're using. A standard PC connection is required, but if you need to integrate the LARRY USB3648+, you can opt to use GPIO communication.\nThe LARRY series is an example of an efficient linear CCD array. Its built-in electronic shutters can reduce integration time by as much as one microsecond. This makes the LARRY series particularly suitable for a wide range of applications. These cameras offer high-resolution images. A linear CCD array is often used in photography and other applications, but it is not an ideal choice for every application.\nA linear CCD array consists of a row of image sensor elements. Each element has a charge detector. The light from the object illuminates a photosite. The charge from the photosite is transferred to an analog shift register. The digital signal from the charge detector is converted into a string of photo-dependent output voltage levels. The image is then stored in the memory of the sensor and stored. When the pixel receives an exposure, the entire system continues to acquire a charge.\nThe MLX90640 SparkFun IR Array Breakout is a low resolution thermal imaging camera with a 32x24 thermopile array. It is capable of detecting temperatures with accuracy +1.5 degC from up to a few feet away. The device communicates with the host platform through I2C. The pins are 0.1\" apart, which makes for an easy connection.\nThe IR Array Breakout has a field of view of 55degx35deg. Its temperature measurement range is -40 degC to 300degC. The sensor's I2C bus is attached to pull up resistors, which make it easy to connect to a host platform. However, the IR Array requires complex calculations from the host platform, and a regular Arduino Uno doesn't have enough RAM to process these calculations. The Teensy 3.1 is recommended for this project.\nThe IR Array Breakout is compatible with the MLX90640 IR Detector. The MLX90640 has a 55degx35deg field of view, and a temperature measurement range of -40degC to 300degC. The MLX90640 IR Array Breakout's pull-up resistors are attached to the I2C bus. Due to the complexity of these calculations, the host platform must have sufficient RAM and flash to process these measurements.\nThe MLX90640 IR Array Breakout is compatible with a wide range of temperature measurement. The temperature measurement range is -40degC to 300degC. The pull-up resistors are connected to the I2C bus. Because of its high number of sensors, the host platform must carry out complex calculations. The SparkFun Uno doesn't have the necessary RAM or flash to perform the calculations.\nThe MLX90640 IR Array Breakout has a 55degx35deg field of view and a temperature measurement range of -40degC to 300degC. The MLX90640 IR Detector requires a microcontroller with 20,000 bytes of RAM. A Teensy 3.1 is recommended. For the most accurate results, the MLX90640 IR Detection Array is a programmable servo with a large memory.\nIR Arrays are very useful for detecting temperature ranges. The MLX90640 IR Array has a field of view of 35degx35deg. It is also useful for detecting the presence of a person or an object. For this purpose, the MLX90640 IR Detection Array is an ideal choice for beginners. The MLX90640 IR Breakout is also suitable for people with limited computing power.","domain":"optical_engineering"}
{"url":"https://mobilepakistan.pk/xiaomi-12-ultra-unofficial-mockups-show-a-redesigned-back-and-under-display-camera/","date":"2024-03-04T09:43:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476432.11/warc/CC-MAIN-20240304065639-20240304095639-00771.warc.gz","language_score":0.9306632876396179,"token_count":364,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__45978741","lang":"en","text":"In China, the Xiaomi 12 series will be unveiled later today. However, the rumor mill has continued to churn out last-minute disclosures. The initial product mockups, which are based on phone shells, show the Xiaomi 12 Ultra from various angles.\nAlso Read: Xiaomi 11T Price in Pakistan\nBefore the CAD renders, the TPU case for the Xiaomi 12 Ultra had been making the rounds on Twitter, courtesy of the European publication LetsGoDigital. The premium phone is available in classic white and black.\nWe’re looking at a curved display, a ceramic casing, and a metal chassis. The camera housing, however, is the most noticeable component of its design. Every year, the cameras on Xiaomi flagships appear to become more complicated and advanced. And the Xiaomi 12 Ultra’s design is the most detailed yet.\nThe lens cluster’s massive ring housing sits atop a raised rectangle platform that protrudes a bit from the backplate, adding to the Xiaomi 5G new model’s overall thickness. The Xiaomi 12 Ultra cameras were co-engineered by Xiaomi and Leica, a renowned optics company. In these photographs, the ‘Leica’ branding is also stamped directly close to the camera ring.\nDon’t Miss: Best Xiaomi Mobiles In Pakistan\nTwo periscope-style (count them, two!) zoom lenses, a wide-angle camera in the middle, and an ultra-wide-angle lens to finish out the configuration can all be seen. The camera array is flanked by a couple of unidentified sensors and an LED flash.\nThe front camera, which is not visible, is another standout. LetsGoDigital claims that the Xiaomi 12 Ultra has a 20MP front camera buried beneath the screen. This is far from confirmed.","domain":"optical_engineering"}
{"url":"https://www.environmentalenergies.co.uk/case-studies/?paged=2","date":"2022-06-26T14:37:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103269583.13/warc/CC-MAIN-20220626131545-20220626161545-00040.warc.gz","language_score":0.8302225470542908,"token_count":158,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__147282096","lang":"en","text":"Environmental Energies installed an 11kW solar PV system at Oundle School Sports Hall.\nEnvironmental Energies installed a 50kW solar PV system at Leigh Academy in July 2020.\nEnvironmental Energies installed an 64kW solar PV system at IPG Photonics’ (the US fibre laser manufacturer) new UK headquarters, manufacturing and research facility at Ansty Park, Coventry.\nEnvironmental Energies installed a 60 panel solar PV system on a the Hugh Aston Building at DeMontfort University in Leicester.\nnvironmental Energies installed an 19kW solar PV system at Hethersett Primary School in Norfolk.\nEnvironmental Energies installed an 8kW solar PV system at 18-20 Hanover Square, London.","domain":"optical_engineering"}
{"url":"http://regency-group.com/karutha-pakshikal-rit/71ebcc-prismatic-air-rifle-scope","date":"2021-09-24T15:03:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057558.23/warc/CC-MAIN-20210924140738-20210924170738-00715.warc.gz","language_score":0.9116726517677307,"token_count":3931,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__60771789","lang":"en","text":"The situation is different when it comes to a spring-powered airgun rifle. Leapers: UTG. The parallax-free, generous, sight picture and forgiving eye-box help hunters to target easily also in high-stress circumstances. Let me tell you how to use a Prism Scope with your arms. They are fixed and often range from 1 times to sometimes 6 times with some expensive ones. The design of the scope allows for a compact optical system without damaging the optical quality. FREE SF Scope Upgrade With Any Rifle Comination or Pro Combination While Stock Lasts! Also, I have selected six scopes that I believe deserve the title of the best air gun scope. Ideas for turning a bedroom into a dining room, Tips For Small Living Room with Dining Room. A prism scope (sometimes also referred to as a prismatic scope) is a scope that uses a glass prism to focus an image as opposed to traditional rifle scopes which use a series of lenses. Though the telescope was famously invented by Galileo way back in 1608, it was many years before optical technology was fitted to rifles. PAO® – Professional Airgun Optics design and manufacture a comprehensive range of hunting, target and tactical air rifle scopes for airguns from entry level fixed-focus 25mm (1”) tubed 4 x 40 budget models through to category-beating 30mm bodied SWAT air rifle scopes, with objective lenses up to 56mm and magnification up to 24 x, which include 100mm sidewheels, mounts, lens covers, … The illumination has different intensity levels too. I love creativity and write reviews about the best products to assist the people who love to purchase products with happiness. This adjustment allows people with astigmatism to use with 1-times magnification instead of using traditional Red Dot sights like Reflex sights or Holographic sights. The distinctive Ballistic reticle which is adjustable to match any lighting condition. Like its (slightly) larger 12×50 sibling, the all-new 10×30 SWAT Prismatic is a little scope featuring some big differences. If you searching to evaluate Aim Sports Prismatic Series 3x36 Rifle Scope Review And Air Rifles Scopes Uk price. Along with good magnification, a high quality Prism Scope gives you both etched reticle and illuminated reticle system. A prism scope has a shorter eye relief that a red dot sight. But they hardly realize that it’s not possible. get reduced4x32 Prismatic Rifle Scope And Air Rifle Ir Scope On Sale . It also can easily be mounted on an AR carry handle. However, a budget Prism Scope can prove as a worthy competitor to its similar Reflex or Holo counterpart that may come at twice or thrice in cost. I am Kathy Martin, Founder of TopCareLab.com. click on image to enlarge. The prism scope is fog proof, waterproof, and nitrogen purged. Shooting Grounds Shooting Range Airsoft Sites Air Rifle Ranges Training ... are both well served by the SWAT Prismatic configuration, and whilst there are many cheaper alternatives out there, few can offer the handling and radical feel of the mighty Atom! Rifle scope; 4x magnification; 32mm objective lens; 34mm tube; 1/4 MOA (1/4\" click value @ 100 yds) Etched-glass mil-dot reticle; Prismatic refraction technology for increased light transmission and clarity in a compact and maneuverable size We aim to help you achieve just that by offering a wide variety of top-rated rifle scopes. MTC SWAT Prismatic 12x50 Rifle Scope. General features of Air rifle scopes. MTC Optics SWAT Prismatic 10x30 ATOM Rifle Scope. We have all the AR-15 scope parts accessories, iron sights you need on sale. It uses a glass prism optical system rather traditional scopes, which ensure top optical quality. But people hardly know about them as they are not that common among professionals. Seems pretty easy to install and use, right? Monstrum Tactical offers two body styles in Black and FDE with 1x, 2x, 3x, & 5x magnification. Sig Sauer understands how important each shot you take is, and Sig Sauer Riflescopes offer unwavering accuracy so every shot you take counts. Best telescopic tactical rifle scopes for air rifles, hunting, tactical Leapers UTG PAO Nikko Stirling Hawke Vortex Optisan SWFA SS Valiant Night vision ATN Nitesite Britannia rails picatinny adapters My Review: Vortex Optics never disappoints any … But first below is a comparison chart showing how different scopes compare. The Prism Sight will be equipped with diopter adjustment. If you own one of that rifle, try out this scope. Amazon.com : Sniper 4x32 Prismatic Glass Crosshair Reticle Scope w/ Fiber Optic Sight : Rifle Scopes : Sports & Outdoors I use glasses on a daily basis so when I’m using Red Dot sights, I face obtrusive reflection. Top 5 Best Prism Scopes in 2020 | Reviews & Guide, Fully multi-coated and prism-based design, Made of 6061 aluminum in a black matte finish, Awesome target achievement from 30 feet to 150 yards, Features 12 different brightness settings, Select from green or red with 5 separate flash settings, Waterproof performanceIntegrated lens cover, Gives 12 adjustable illumination settings, Compact, heavy duty, and lightweight prism scope, The reticle is visible with or without lighting, Features 3x magnification and a 30mm objective lens, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Pinterest (Opens in new window), How to Clean Your Dishwasher – You Should Know, 4 Important Ideas to Decorate Dining Table, 10 Best Cheap Gaming Desk Under $100 of 2021, Top 7 Best Executive Office Chairs in 2020 | Review, Top 10 Best Desk Pad in 2020 | Reviews & Guide, The Benefits of Keeping Your Desk Clean and Tidy, Top 12 Best Handlebar Bags in 2020 – Reviews & Guide. This waterproof and fog proof hunting scope give fixed magnification between 1x and 5x. As for using it, it’s like using a binocular. The Nikon ProStaff 3-9x40mm Target EFR rifle scope is a highly accurate, fast-targeting scope that provides a user with the fast-focusing capabilities of a short range sight and the versatility of a variable zoom scope. So, Prism Scope is a kind of Red Dot Sight and that’s why the proper comparison will be Reflex sight vs Prism Scope or Holographic Sight vs Prism Scope, even though Holographic Sight and Prism Scope is no match to one another as holographic sight with magnifier is hardly a thing. Open or iron-sights have been known to be challenging, even for the most experienced of shooters but with Air Riflescopes & Accessories you can almost guarantee hitting your target. If you have carefully read the whole thing, I can assure you that you’re coming home with the Prism Scope from the market, even if you are overwhelmed with several eye-candy choices. It has a magnification of 3x, so you can see targets much closer. A prism scope with magnification has the same parallax issues as magnified rifle scopes. The compact size and lower magnification range makes them well suited for AR-15’s and similar tactical rifles. It is waterproof, fog proof, compact and comes with a unique Ballistic / Close Quarters reticle. Compact and outstanding design with a high-quality metal finish. Instead, Red Dot is a common term used to describe Firearm sights in general, which uses a Red Dot. Also gives super-fast functionality and awesome optical quality. Vortex Optics Strike EaglePrice Range: Under $400. While holographic sight and reflex sights are power hungry when they are being used, Prism sight work on a light diet so that you don’t have to replace the battery very often. Prism scopes are usually more compact and limited to the lower range magnifications between 1X and 5X. It works even if they’re hundreds of yards away. This allows for a more compact design while still allowing for many of the same benefits such as a magnified image, an etched reticle, reticle illumination, and a focusing eyepiece. Cheap Riflescopes, Buy Quality Sports & Entertainment Directly from China Suppliers:Vector Optics Calypos 3x32 Prismatic Rifle Scope IPX6 Water Proof BDC Reticle CQB Riflescope AR15 M4 Close Middle Range Shooting Enjoy Free Shipping Worldwide! The Length of the scope is 320mm. Besides, they are compact in size, unlike open Reflex and Holo sights. 99 tactical precision prismatic Precise, compact, high-performance CQB optic that's AR-ready but versatile enough to use on any type of rifle. MTC produce a range of top quality optics to ensure you have the correct Rifle Scope no matter what your shooting needs are. 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Not possible know about them as they are simply the best Prism sight out of all, you can from..., Tips for small Living Room with dining Room for magnification giving you quicker target acquisition a... Of prisms – like binoculars outstanding design with a unique Ballistic / Quarters. Ideal for Prism scopes are actually what they sound, “ Prism ” scopes gives you both reticle. From green or Red Dot sights difficult the budget alternatives for expensive Reflex and Holo.! Product longevity of using Prism scopes are composed of “ prisms ” like the.... As an good alternative to other short range Optics such as Centerpoint scopes, BSA Optics, ATN and... A larger sight picture and extending your effective range a range of quality... Excels at combo package comprising gun, scope and Air rifle scope Review Burris... Airgun rated and can be either a Dot or cross depending on the model and manufacturing company reverse of... Back to the primary arms brand and sig Sauer riflescopes offer unwavering accuracy so every shot take... And models you see in a traditional rifle scope for the next time I comment of sights by Vortex is.","domain":"optical_engineering"}
{"url":"http://www.mcnamarareport.com/can-medium-format-digital-cameras-survive/","date":"2018-01-19T19:36:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084888113.39/warc/CC-MAIN-20180119184632-20180119204632-00288.warc.gz","language_score":0.9450399875640869,"token_count":2012,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__79195397","lang":"en","text":"Hang on to your budgets and pixel-calculators, everyone. At the Photokina trade show in Cologne, Germany this September, Hasselblad introduced two new medium format digital cameras, the H3DII-39 (pricing estimates are around $22,000, street) and the H3DII50 (priced around $28,000, street). These cameras were mentioned in the a previous Photokina Report, but to summarize: the Hasselblad H3DII-50 will be the first camera in the market equipped with Kodak’s larger-than-35mm 50 megapixel CCD sensor. As if a 50MP sensor is not impressive enough on its own, Hasselblad also announced that it hopes to raise the bar again in 2009 with the H3DII-60, a 60 megapixel version with a price-tag of about $35,500 (I guess there’s a shortage of 60MP sensors due to the high demand from government spy satellites!!)\nFor more analysis on the Hasselblad H3DII50 features, listen to the October 18, 2008 McNamara Report segment on Inside Digital Photo (slide to the 22min 30sec mark for that segment);\nSo the megapixel wars continue, albeit for the few who can afford it, want a medium format system, or are locked into Hasselblad by a sizable investment in its glass. But if you’re looking to move up the megapixel chain from your advanced amateur or pro DSLR and wow! your clients with an uber-camera, is a Medium Format system the best choice? Hasselblad claims it is, but I disagree with some of the arguments I’ve heard. For example: During the Photokina press conference, Hasselblad CEO Christian Poulsen contended that 35mm-based digital SLR companies won’t be able to compete with medium format because their lenses can’t handle the resolution of super-high res sensors. According to a quote in Photo District News by Dan Havlick, Poulsen said “In my opinion, for those cameras, the pixel game should’ve been over a few years ago. I don’t think you can tell the difference between a 16-megapixel camera and a 21 or 24-megapixel camera and that has nothing to do with the sensor, it has to do with the resolution of the lenses.”\nIs he kidding? I haven’t heard a CEO of a major company make such an erroneous claim since the launch of the Foveon X3 sensor. Facts don’t support Poulsen’s statement about the superiority of medium format lenses over 35mm lenses, and my fairly-recent test experience while at Popular Photography magazine refutes his claim about being able to tell the difference between a 16MP and 21 or 24MP camera. Fact: Lab tests using a fairly inexpensive Canon EF 50mm f/1.4 lens showed a 10+ percent increase in resolution delivered by the new Canon EOS 1Ds Mark III over the older 16.7MP Canon EOS 1DS Mark II (tested at approx. 2800 lines vs 2500 lines respectively).\nWhy would a company that makes a few thousand lenses a year for its Medium Format systems believe that it had better lens technology than companies typically selling millions of lenses per year? (and collectively spending 100 times more in lens R&D per year?) The fact is that until recently Hasselblad and the other remaining MF companies did little to optimize their lenses for use with digital sensors. Instead, these companies relied on the MF size/magnification advantage that propelled them through the film camera years, and not superior lens technology. Back in 1995 Popular Photography magazine reported that MF lenses (even the best available at the time) were not as sharp as the top lenses being manufactured by 35mm SLR companies such as Canon, Nikon, Olympus, Konica Minolta, and Pentax. Despite this finding, those MF lenses still helped MF cameras deliver better image quality and detail. Why? When enlarging the captured film image to print or even projection size, the larger-sized film used in MF cameras did not have to undergo as great a magnification as 35mm film, and therefore could get by with slightly lower resolution at the lens.\nAssuming the same brand, ISO, and film type, the film being used in both 35mm and MF cameras came off the same production line, was cut to different sizes, and therefore had the same potential resolving power. If a MF manufacturer made sharper lenses the advantage would have been even greater–but the cost of doing so apparently outweighed the visible advantages, and MF lenses were already several times more expensive than 35mm equivalents due to their larger size and shorter production runs. Meanwhile, for several decades, 35mm manufacturers have been spending millions per year trying to create lighter, more affordable lenses with improved brightness, sharpness, flare reduction, light falloff, autofocus engines, and image stabilization systems. Their goal? Sell millions more lenses per year along with millions of SLRs and DSLRs, more than enough to offset lens R&D spending. (Little know factoid: roughly 12,000 medium format cameras were sold per year in US during their peak in the mid-to-late 90’s, which may be one reason why several MF manufacturers are no longer around.)\nAre these expensive Hasselblad lenses really sharper than their 35mm counterparts?\nCCD and eventually CMOS sensors started showing up with a whole new set of problems for the 35mm lens and camera manufacturers. Unlike film, which can capture a ray of light coming in at extreme off-axis angles, CCDs and CMOS sensors have less sensitivity to off axis light rays and more sensitivity to flare, soft focus, and light falloff. To compensate, sensor designers added micro-lenses on top of each pixel to help steer the light into the sensor (imagine trying to throw a basketball into a well from twenty feet away. It would sure help if there was a large funnel on top of the well to help guide the ball in.) Meanwhile, in order to keep up with the megapixel sensor growth, 35mm lens designers had to improve the edge-to-edge performance, reduce chromatic aberration and internal reflections, and fine tune the AF precision (among other things) of their lenses. As a result, digitally optimized lenses have been available from most 35mm manufacturers for the last 5 years. However, when the first Hasselblad H1D was released sporting a Kodak 16MP sensor in its digital back, there were no digitally-optimized Hasselblad lenses available. Instead, the smaller format of the sensor relied on the sweet spot of existing lenses to provide extremely high (and beyond satisfactory) image quality.\nThe question anyone who is considering either the new 50MP or promised 60MP Hasselblad should be asking is whether the Hasselblad lenses they already own, or may purchase in the future, are optimized for the size and design of these new Kodak sensors. As in the film days, the resolution of the sensor isn’t the advantage point, but it’s larger format is. The size of the pixels in the 50MP Kodak sensor used in the H3DII are nearly the same as the size of the pixels in the Full Frame 21.1MP Canon EOS 1Ds Mark III or in the 24Mp Sony A900–so the Kodak sensor does not offer dramatic improvements in resolution (at the sensor), low light sensitivity or noise advantage based on the pixel size (as it generally the case when comparing large and small pixels). What you gain by shooting with a 50MP or 60MP medium format camera is either a cropping advantage, or an increase in maximum reproduction size–the same advantages offered by MF cameras in the film era. (Now, if you were able to pack 50MP into a 35mm full frame sensor, you would increase the resolution significantly compared to a 21MP sensor, but you would also decrease low light sensitivity as a result of using smaller pixels.)\nGranted, looking through the enormous optical viewfinder on the Hasselblad is a real treat, and carrying one around is a traffic stopper, but is the higher price for these medium format bodies and the larger, more expensive lenses it requires worth it when compared to existing 21 and 25MP full frame DSLRs from Canon, Sony, and eventually Nikon? Not for me, or most other pro photographers who would rather have lighter, brighter, faster focusing, and image-stabilized lenses along with pro camera bodies that offer far more image quality and performance controls, greater durability, and speed compared to the Hasselblads or any other MF camera (although the new 37.5MP Leica S2 may help change my mind). Forget about shooting sports with this Hasselblad (unless you do the team photo) as it has a non-existent burst mode, or taking it outside in a light rain. And if your goal is to WOW! new clients with extraordinary image detail, you’ll be in line with the other photographers shooting with the Canon EOS 1Ds Mark III. Given all the above, you have to wonder how long Hasselblad will be able to compete against the full frame 35mm DSLR crowd, and if it will sell enough of the new H3D models to justify further developments. видео пытки казни изнасилования\nBurst mode? WHAT burst mode? It takes 1.2 sec to store each 50MP image.","domain":"optical_engineering"}
{"url":"https://snooplay.in/products/night-scope-binoculars","date":"2023-02-03T04:21:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500042.8/warc/CC-MAIN-20230203024018-20230203054018-00734.warc.gz","language_score":0.8934687376022339,"token_count":147,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__400284","lang":"en","text":"Night Scope Binoculars (See in Dark with Night Beam Vision)\nRegular priceRs. 420.00\nGet your spy mode on with these night scope binoculars that allow you to look far and wide, even in minimal light. With a range of 25 feet, the binoculars are equipped with green tinted lenses for surveillance, accompanied with night beam visions.\nAge: 3 years and above\nContents: 1 binocular\nThe color of the final product may vary, the one available will be shipped to you.\nFree Shipping is not applicable on this product. An additional shipping cost will be added to the product on the checkout page.","domain":"optical_engineering"}
{"url":"https://www.vancouvercosmeticdental.com/prevention/carivu-detection-camera/","date":"2023-01-26T22:11:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494826.88/warc/CC-MAIN-20230126210844-20230127000844-00083.warc.gz","language_score":0.8997411727905273,"token_count":133,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__281045370","lang":"en","text":"CariVu Detection Camera\nCariVu Detection Camera is a detection device that uses patented trans-illumination technology to support the identification of cracks and tooth decay.\nBy hugging the tooth and bathing it in safe, near-infrared light the CariVu makes the enamel appear transparent while porous lesions trap and absorb the light. This unique caries detector allows the clinician to see through the tooth exposing its structure and the actual structure of any carious lesions with very high accuracy.\nThe CariVu uses non-ionizing radiation which is ideal for children, pregnant women and patients who are X-ray averse.","domain":"optical_engineering"}
{"url":"http://issrescue.com/tikka-xp-red.html","date":"2018-11-20T20:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746639.67/warc/CC-MAIN-20181120191321-20181120213321-00315.warc.gz","language_score":0.7750282287597656,"token_count":183,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__11894934","lang":"en","text":"Brightness : 35 Lumens (maximum) Flood beam: LED x 4 Powerful headlamp, 3 lighting levels, Boost mode\nA single light source that addresses multiple lighting needs\n- 3 lighting levels : maximum, optimum, economic,\n- flood beam for sharp, proximity lighting (Wide Angle lens),\n- spot beam shines up to 35 meters,\n- Boost mode : shines 50 meters for 20 seconds.\nCompact and lightweight\n- single compartment for LED and batteries\n- less than 100 g including batteries.\nBattery level indicator light\n- warns when the batteries are 70% and 90 % discharged.\n- Water resistant for all-weather use.\n- Wide Angle Lens made of impact resistant polycarbonate.\n- Strobe mode. Operates on 3 AAA/LR03 batteries (included).\n- Weight : 95 g including batteries.\n- 3-year guarantee.","domain":"optical_engineering"}
{"url":"http://www.irico.com.cn/en/products","date":"2024-02-23T13:06:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474412.46/warc/CC-MAIN-20240223121413-20240223151413-00445.warc.gz","language_score":0.9039215445518494,"token_count":185,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__188813408","lang":"en","text":"PRODUCTS AND SERVICES\nThe photovoltaic glass produced by the company is based on the Chinese market and is sold globally. The company's main customers include well-known domestic companies such as Longi, JA, Trina Solar, GCL, Canadian Solar, etc. The products are exported to Japan, South Korea, India, Europe and other countries and regions.\nThe ultra-white rolled photovoltaic glass for solar photovoltaic modules is a kind of low-iron glass with ultra-white cloth pattern (textile) embossed on the glass surface. The light transmittance after tempering and coating can reach more than 93.7%. Mainly used in solar cell module packaging, it is an indispensable part of solar photovoltaic modules.\nTo be applied to solar cell module packaging, it is an indispensable and important part of solar photovoltaic modules.","domain":"optical_engineering"}
{"url":"http://jalepink.top/light-fixtures-for-ceiling-fans/","date":"2018-06-23T13:45:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865081.23/warc/CC-MAIN-20180623132619-20180623152619-00288.warc.gz","language_score":0.9414754509925842,"token_count":283,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__138765919","lang":"en","text":"Uploaded by Fred Grey for Lighting Fixtures at Thursday, November 16 2017 23:09:04\nThe more transparent the lighting fixture is, the higher efficacy. Shading the light will normally decrease efficiency but increase the directionality and the visual comfort probability.\nThe PH-lamps are a series of light fixtures designed by Danish designer and writer Poul Henningsen from 1926 onwards. The lamp is designed with multiple concentric shades to eliminate visual glare, only emitting reflected light, obscuring the light source.\nArchitectural lighting design focuses on three fundamental aspects of the illumination of buildings or spaces. The first is the aesthetic appeal of a building, an aspect particularly important in the illumination of retail environments. Secondly, the ergonomic aspect: the measure of how much of a function the lighting plays. Thirdly is the energy efficiency issue to ensure that light is not wasted by over-illumination, either by illuminating vacant spaces unnecessarily or by providing more light than needed for the aesthetics or the task.\nLighting fixtures come in a wide variety of styles for various functions. The most important functions are as a holder for the light source, to provide directed light and to avoid visual glare. Some are very plain and functional, while some are pieces of art in themselves. Nearly any material can be used, so long as it can tolerate the excess heat and is in keeping with safety codes.","domain":"optical_engineering"}
{"url":"http://www.iaspromotes.com/1611-ff1-10086555-promotional-items-first-aid-health-&-safety-medical-personal-protection-aids.htm","date":"2014-08-02T05:21:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-23/segments/1406510276353.59/warc/CC-MAIN-20140728011756-00488-ip-10-146-231-18.ec2.internal.warc.gz","language_score":0.7590916156768799,"token_count":124,"dump":"CC-MAIN-2014-23","global_id":"webtext-fineweb__CC-MAIN-2014-23__0__228648877","lang":"en","text":"Forceflex technology incorporates a patented, multi-injection molding of the lens with a flexible Thermo Plastic Urethane (TPU) frame. Due to this construction, it can achieve a military ballistic level impact resistance at over 1000 feet per second. The TPU material allows the frame to flex and\nfit individual faces from large to small.\n- Material: Thermo Plastic Urethane (TPU)\n- Color: Black\n- Normal Production Time: 10 business day(s)\n- Price Includes:one-color, one-position imprint.\n- Set Up Charges:$38","domain":"optical_engineering"}
{"url":"http://starrynights.us/Articles/BRC-Focus.htm","date":"2023-12-08T08:40:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100739.50/warc/CC-MAIN-20231208081124-20231208111124-00495.warc.gz","language_score":0.9598638415336609,"token_count":602,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__295600474","lang":"en","text":"Focusing the Takahashi BRC-250 Astrograph\nThe Tak BRC is able to hold focus over a wide range of temperature variation due to the use of carbon fiber material for the tube as well as invar and other carefully chosen materials for the secondary spider and the mirror cells. After using the BRC for a year, I am convinced that it can be focused once and then left unchanged throughout the year. Until the optics are recollimated, the focus should remain constant. Fortunately, due to the extremely rugged construction of the BRC, recollimation should not be needed until the optics are removed for some reason such as cleaning or recoating.\nThe BRC uses a 4\" inside diameter helical focuser having 36 graduations marked and numbered sequentially on its circumference. Each graduation is further divided in half by an index line resulting in 72 clearly marked reference points per rotation. Because one rotation of the focuser moves the film plane only 1 mm, it is possible to move the focal plane in increments of 1/72 mm or 0.000547 inches. It is possible to resolve even smaller increments by using positions between the marks but (so far) I haven't bothered. The focuser includes a locking ring to hold it firmly in position once it is set.\nAfter finding the approximate focal point using a knife edge or other means, a series of photographs can be taken at focuser positions bracketing this point. Then the optimal postion can be selected by examining the images.\nBelow is a series of images taken near M13. Each exposure was for only 4 minutes to avoid other impairments such as field rotation and guiding. The film used was 35 mm Kodak Max400 which could be developed and scanned quickly (kudos to Warren Keller for doing the scanning). The images were taken from my front yard which is heavily light polluted by nearby NYC as well as street lights. As a result, the images are quite noisy but are still adequate for their purpose. A star having a diameter of around 4x4 pixels (44 microns) was selected within the field. Other than cropping and resizing to zoom in on the selected star, no image processing was performed. The number at the base of each image is the focuser position.\nAs can be seen, a small amount of chromaticism is contributed by the 2 element Baker field flattner when the system is not correctly focused. This results in a slight blueish edge to one side of the star and a goldish edge on the other side. In the left most image at focuser position 30.5, the bluish edge is to the right of the star while the goldish edge is to the left. This situation reverses between focuser positions 32.0 and 32.5 so the optimal focus is between these two points, possibly a bit closer to 32.5 than to 32.0 since the star in 32.5 is slightly more compact.","domain":"optical_engineering"}
{"url":"https://www.shopping4net.co.uk/Contact-lenses/Daily-lenses/MyDay-Daily-Disposable-30p.htm","date":"2024-04-20T23:41:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00444.warc.gz","language_score":0.910682201385498,"token_count":713,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__185386983","lang":"en","text":"MyDay® is all you need in order to get an amazing experience with your contact lenses.\n- Correcting your sight with nearsightedness and farsightedness\n- Includes Smart Silicone™, a revolutionary breakthrough within lentil chemistry that has made the benefits of MyDay possible\n- >Practical daily change interval\n- Built-in UV-protection that blocks 85 % of the UV- and 96 % of the UVB-radiation so the lenses promote long-term eye health.\nOn stressful days your eyes are constantly working. We think you’re your lenses should do the same. Therefore we have now developed these new MyDay™ daily contact lenses. MyDay provides you a lens with Smart Silicone™, a revolutionary breakthrough within lentil chemistry that makes sure that MyDay-lenses work during the whole day and are so comfortable that you forget you are even wearing lenses. These lenses have it all!\n- Uncompromising comfort\n- Oxygen permeability in silicone hydrogel that keeps your eyes healthy and fresh\n- A lens that is quite easy to put on and take out.\nAll that you will find with MyDay – contact lenses you can put on and then forget until it’s time to take them out before going to bed.\nMyDay® is available both in 30-packs and 90-packs. What makes Smart Silicone unique (and why should you care)\nSmart Silicone provides the eyes more oxygen with an effective way than one day lenses from other manufacturers, at the same time using less silicone**. This is important because less silicone means that there is more space for built-in moisture pockets and that the lens material with high liquid level keeps your eyes moist all day. Less silicone also guarantees that your MyDay-lenses feel extremely soft – softer than other silicone hydrogel based one-day lenses** - but are still easy to put in and take out.\nTo give even more comfort, MyDay-lenses are designed with an even lentil surface and round edges. This design gives more natural feeling to the user and the eye lid can move over the lenses without you feeling anything.\n*Warning: UV-absorbing contact lenses do not replace protective eye protection, for example UV-absorbing eye glasses or sun glasses, because the lens does not cover the whole eye or the surfaces close by. The user should continue using UV-absorbing eye protection as recommended.\n**Based on a modulus within leading silicone hydrogel based one-day lenses: 1-DAY ACUVUE® TruEye®, DAILIES TOTAL 1®.Usage\nThese daily lenses should be used for one time during one day and then they are thrown away. Daily lenses are both comfortable and hygienic to use because you put on a new fresh pair of contact lenses each day.\nFollow your opticians recommendations carefully in using and taking care of your contact lenses because the usage of lenses is always individually based.\n- Cooper Vision\n- 30 each/packet\n- Base Curve (BC)\n- Diameter (DIA)\n- Refractive power (PWR)\n- -10.00 to +6.00\n- Wearing Time\n- 1 day\n- Stenfilcon A\n- Water Content\n- Visibility tint","domain":"optical_engineering"}
{"url":"https://invicro.com/case-studies/clinical-tumor-sample/","date":"2024-04-15T22:12:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00198.warc.gz","language_score":0.9237884879112244,"token_count":389,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__10109140","lang":"en","text":"Intraoperative tumor identification is prone to error because it is mainly based on visually identifying the changes in tissue morphology. To address this, surgical cameras are utilized to better distinguish tumors from normal tissue. A recent, first-in-human study showcased a novel technique using an FDA approved therapeutic antibody, Cetuximab, labeled with IRDey800 for more accurate tumor identification and resection (Rosenthal et al. 2015).\nResected tumors are subjected to pathological evaluation to determine the distribution of Cetuximab and its colocalization with epidermal growth factor receptor (EGFR). Although this approach provides high-resolution images of the antibody in the tumor tissue, it is constrained by randomized section collection and spatial resolution. Cryofluorescence Tomography (CFT), a novel ex vivo imaging technique developed at Invicro, can provide high-resolution fluorescence and bright field images to visualize the distribution of an antibody throughout an entire tumor sample.\nIn this study, CFT was utilized to visualize the distribution of Cetuximab-IRDye800 in a clinical squamous cell carcinoma sample (Figure 1). Following resection, the tumor was imaged using multiple near-infrared (NIR) imaging systems. The sample was then fixed in formalin and embedded in paraffin (FFEP) and subsequently sectioned and imaged with CFT. Block face white light and fluorescence images were simultaneously acquired for each section. The images were then reconstructed into a 3D volume to visualize the biodistribution of Cetuximab in the tumor. Maximum intensity projection (MIP) images show the antibody biodistribution throughout the processed tumor sample. When compared to the 2D near-infrared (NIR) images, the CFT images have a higher in-plane resolution and therefore, the surface and sub-surface level biodistribution can be observed in more detail.","domain":"optical_engineering"}
{"url":"https://triplemranchgoods.com/product/security-camera-outdoorwansview-1080p-pan/","date":"2024-04-20T16:10:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00865.warc.gz","language_score":0.8657926917076111,"token_count":162,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__202687921","lang":"en","text":"- 【1080P FHD &PTZ Coverage 】 High resolution images in 1080P resolution ,wide-angle lens combined with 350°vertical rotation range to help you view every angle of your house clearly. Powered by USB cable and this wifi camera only works with 2.4GHz WIFI band.\n- 【Infrared Clear Night Vision & IP65 Waterproof】Wansview security camera outdoor is equipped with 12pcs 850nm infrared LED lights, which switch to the smart night vision mode up to 50 feet. Intelligent IR-cut ensure see everything in any dark environment in real-time. IP65 waterproof feature is the best choice for outside use, allows you to keep monitoring in extreme environments no matter in storm and snowy weather.","domain":"optical_engineering"}
{"url":"https://exciramedia.com/order/4000144410508","date":"2019-09-17T19:03:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573105.1/warc/CC-MAIN-20190917181046-20190917203046-00286.warc.gz","language_score":0.759990930557251,"token_count":332,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__103814392","lang":"en","text":"Store Names: Merry Hommylife Store.\nSolar Power Welder Welding Helmet Mask Automatic Adjustable Shade Lens FilterSpecifications: Suitable for most kinds of welding mode. Delay time can be selective. Provide the user’s eyes and face with a full protection against UV and IR radiation during the entire welding process, even in the clear state. Item Name: Welding Helmet LensPower Supply: Solar Cells, No Battery Replacement Required Rate of UV Transmittance: 313nm<0.00006% 365nm<0.00006% Rate of IR Transmittance: 780~1300nm<0.003% 1300~2000nm<0.009% Frame Dimensions: 11cm x 9cm x 0.9cm/4.33\" x 3.54\" x 0.35\" (Approx.) Size: 9.1cm x 4.2cm/3.58\" x 1.65\" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Welding Helmet Lens window.adminAccountId=238965402; Grab Best Deals Solar Power Welder Welding Helmet Mask Automatic Adjustable Shade Lens Filter Welding Helmet Lens Only For US $6.32 At exciramedia.com, This is actually the Best Online Shpping Intended for Get Best Deals Intended for Electronic, Fashions, Tech, Smarphones, Laptop, Furniture And and so on. Grab Each of the Deals Nowadays.","domain":"optical_engineering"}
{"url":"http://sapphirecontractors.co.uk/thermal.shtml","date":"2021-09-24T06:54:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057504.60/warc/CC-MAIN-20210924050055-20210924080055-00285.warc.gz","language_score":0.8186323642730713,"token_count":243,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__51755901","lang":"en","text":"Get the Flash Player to see this rotator.\nSapphire offers a regular service using Thermal Imaging, which will provide our customers with the best chance of avoiding system breakdowns.\nThermal imaging is a technique for creating an image of a scene based on the invisible Thermal Radiation emitted from an object. Using this technology, thermal images of faults in mechanical or electrical plant can be displayed.\nThermal imaging can be used in any process where the temperature of the object gives an indication of its state not visible to the eye. For example, a loose electrical connection or a worn bearing will heat up.\nThese defects can be seen with a thermal imager as a ‘hot spot’.\nThe ability to measure the temperature of an overheating component enables the operator to determine the seriousness of the fault, and take corrective action before costly breakdowns occur.\n|Sapphire||Southern Office 020 8665 6226 - Northern Office 0161 341 0621|\n|Head Office - Sapphire, Sapphire House, 18 Gladstone Road, Croydon, Surrey, CR0 2BQ. Tel: 020 8665 6226 Fax: 020 8664 8927|","domain":"optical_engineering"}
{"url":"https://wellprepared.com/products/wallet-sized-magnifying-glass","date":"2023-11-29T22:05:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00800.warc.gz","language_score":0.8961212038993835,"token_count":144,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__173202337","lang":"en","text":"Wallet Sized Magnifying Glass -- Wallet Sized Magnifying Glass - 5 Pack\nThe Fresnel lens functions like a regular magnifying glass, except it is flat instead of lens-shaped.\nStarting a fire with a Fresnel Lens card magnifier is just like using a regular magnifying glass.\nCollect a wad of dry, fluffy tinder, such as the dry inner bark of a dead cottonwood, and focus the light of the lens on the tinder to start it smoldering.\nWhen you have a glowing coal, then you can blow on it to make it grow until it ultimately bursts into flame. Do keep in mind that card magnifiers only work when the sun is shining..","domain":"optical_engineering"}
{"url":"https://www.indigovision.com/products/covid-19-technologies/control-center-temperature-screening/","date":"2021-04-23T12:14:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039617701.99/warc/CC-MAIN-20210423101141-20210423131141-00610.warc.gz","language_score":0.8955288529396057,"token_count":110,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__248133988","lang":"en","text":"Safe and contactless temperature screening\nIt’s vital that screening is done safely and efficiently. Our thermal camera temperature screening solution involves no human contact and deploys a hybrid camera with a thermal sensor and a standard 2MP optical sensor. When used in conjunction with a Blackbody device, it measures a person’s skin temperature.\nThe Blackbody heat radiator device is used by the camera as a reference point to measure the subject’s temperature. This method means a person can be screened even if they are wearing a face mask.","domain":"optical_engineering"}
{"url":"http://bsolarlight.booklikes.com/","date":"2019-07-18T05:25:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525500.21/warc/CC-MAIN-20190718042531-20190718064531-00417.warc.gz","language_score":0.9474847316741943,"token_count":438,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__211107511","lang":"en","text":"Purchasing the high quality and energy efficient LED street lights in China\nIn order to enjoy the lasting innovations in the LED street lights, everyone should have to look for the China based light fixtures. The led street light china products are high quality, eco friendly and also energy efficient to give the lasting illumination in any place.\nFinding a right company:\nIt is your greatest responsibility to find the best and top rated manufacturer or supplier who is delivering the best quality LED street lights in the different models, sizes and also designs. While looking for the best LED street lights, you have to check out the reliability and reputability of the supplier in order to find the right light source in the modern design. If you are choosing the LED light fixtures for your street lighting purposes, they will definitely give you the higher lumens with only the lower amount of energy consumption.\nThe top rated manufacturers and suppliers provide the high quality led street lights in China market but only at the highly reasonable price range. Such kinds of the light fixtures are differently used in the residential colonies and streets to offer the lighting and also power. Those LED lights are well known for their compact size, greatest functionality, higher quality, modern design and also the sophisticated technology to offer all kinds of the benefits.\nDifferent applications of LED street lights:\nWhen it comes to the led street light china, it can be used for the different applications such as,\nIndustrial lighting and more.\nFor all these applications in China, they are using the LED based street lights which are highly energy efficient and also environmental friendly to use at all. According to your requirements, you can buy such led lights with any capacity because they are all available from 12 to 150 watts.\nMost of those lights have the frequency range of 50 Hz to 60 Hz and also the input voltage of 85V to 265V input voltage. There is pressure die cast aluminium alloy used for the extruded aluminium lamp housing or housing gear which is also known as the heat sink. It is mainly used of the best level of heat transmission and offers the surge protection, over voltage or lower voltage protection with the long life and instant on/off.","domain":"optical_engineering"}
{"url":"https://jacksonvilleeyedocs.com/glasses/","date":"2023-11-29T14:32:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100112.41/warc/CC-MAIN-20231129141108-20231129171108-00616.warc.gz","language_score":0.9331070780754089,"token_count":548,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__156472347","lang":"en","text":"Refractive errors (problems focusing) are easily corrected with the proper eyeglasses. There are many types of lenses, including lens coatings, and frame designs to choose from.\nTypes of Eyeglasses\nThere are many types of eyeglasses to suit the needs of people needing particular vision correction.\n- Single vision lenses are designed to correct distance vision such as near- and far-sightedness.\n- Bifocals utilize the bottom half of the lens correction for reading and the upper half for seeing at a distance. Double-D bifocals, have included segments at the top for looking upward at objects in the near or intermediate range.\n- Trifocals correct distance, intermediate, and near vision in the same lens.\n- Progressive lenses have a smooth transition on the actual lenses for distance, intermediate, and near focal areas, rather than visible dividing lines. Since the transitional areas take up room the focal areas tend to be smaller.\n- Reading glasses can be purchased over the counter at retail outlets, grocery stores, drugstores, and bookstores and are for seeing up close. Prescriptions can also be obtained for reading glasses.\nEyeglass Lens Materials\nEyeglass lenses today are mostly made of plastic. They are lighter, safer, and more flexible than actual glass. They also contain UV light-blocking abilities. Polycarbonate lenses are recommended for wearing eyeglasses during sports and any other activity that could possibly result in an injury of the eyes as the lenses are highly impact resistant. Trivex is a newer lens material that reduces distortion when compared to polycarbonate and may be preferred as an alternative material. “High index” lenses are recommended for patients with higher prescriptions.” As an alternate to polycarbonate, trivex (a newer material) is a available that is less distorting. For people who need high vision correction, “high index” lenses are recommended. These light plastic lenses have a much thinner profile, lowering the “Coke bottle” appearance that predominantly is associated with thick-lensed glass lenses.\nEyeglass Lens Protective Coatings\nProtective coatings for eyeglasses are available to help you keep your eyes healthy. They have several benefits:\n- Help lower reflections off the surface of the lenses, creating a more aesthetic appearance and help with eye contact\n- Improving the sensitivity to contrast and reducing glare\n- Protect your eyes from ultraviolet (UV) light\nSunglasses that feature both vision correction and UV protection are available. Also, photochromatic lenses which tint depending on light exposure are ideal for people who prefer one set for inside and outside activities.","domain":"optical_engineering"}
{"url":"https://hspersunite.org.au/new-technology-to-help-find-drugs/","date":"2024-02-24T08:32:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474526.76/warc/CC-MAIN-20240224080616-20240224110616-00501.warc.gz","language_score":0.9375461339950562,"token_count":842,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__127827652","lang":"en","text":"Neuron regrowth can be tracked\nLab testing on worms for regrowth of severed neurons can now be done both fast and effectively in large numbers thanks to new microchip technology developed in the US.\nScientists have long sought the ability to regenerate nerve cells, or neurons, which could offer a new way to treat spinal-cord damage as well as neurological diseases such as Alzheimer’s or Parkinson’s. Many chemicals can regenerate neurons grown in Petri dishes in the lab, but it’s difficult and time-consuming to identify those chemicals that work in live animals, which is critical for developing drugs for humans.\nEngineers at MIT have now used a new microchip technology to rapidly test potential drugs on tiny worms called C. elegans, which are often used in studies of the nervous system. Using the new technology, associate professor Mehmet Fatih Yanik and his colleagues rapidly performed laser surgery, delivered drugs and imaged the resulting neuron regrowth in thousands of live animals.\n“Our technology helps researchers rapidly identify promising chemicals that can then be tested in mammals and perhaps even in humans,” says Yanik. Using this technique, the researchers have already identified one promising class of neuronal regenerators. The paper will appear in the online edition of the Proceedings of the National Academy of Sciences the week of Oct. 11.\nC. elegans is a useful model organism for neuron regeneration because it is optically transparent, and its entire neural network is known. Yanik and colleagues had previously developed a femtosecond laser nanosurgery technique which allowed them to cut and observe regeneration of individual axons — long extensions of neurons that send signals to neighboring cells. Their femtosecond laser nanosurgery technique uses tightly-focused infrared laser pulses that are shorter than billionth of a second. This allows the laser to penetrate deep into the animals without damaging the tissues on its way, until the laser beam hits its very final target i.e. the axon.\nIn the PNAS study, the researchers used their microchip technology to rapidly cut the axons of single neurons that sense touch. Moving single worms from their incubation well to an imaging microchip, immobilizing them and performing laser surgery takes only about 20 seconds, which allows thousands of surgeries to be performed in a short period of time.\nAfter laser surgery, each worm is returned to its incubation well and treated with a different chemical compound. C. elegans neurons can partially regrow without help, which allowed Yanik’s team to look for drugs that can either enhance or inhibit this regrowth. After two or three days, the researchers imaged each worm to see if the drugs had any effect.\nThe MIT team found that a compound called staurosporine, which inhibits certain enzymes known as PKC kinases, had the strongest inhibitory effect. In a follow-up study, they tested some compounds that activate these kinases, and found that one of them stimulated regeneration of neurons significantly. Some of Yanik’s students are now testing those compounds on neurons derived from human embryonic stem cells.\nThis microchip technology can also be used to screen compounds for their effects on other diseases such as Alzheimer’s, Parkinson’s and ALS, says Yanik.\nEditor’s Note: This article is not intended to provide medical advice, diagnosis or treatment.\nFrom an article in ScienceDaily (Oct. 13, 2010)\nMicrochip Technology Rapidly Identifies Compounds for Regrowing Nerves in Live Animals\nThe above story is reprinted (with editorial adaptations by ScienceDaily staff) from materials provided by Massachusetts Institute of Technology.\nSOURCE: Proceedings of the National Academy of Sciences, 2010; DOI: 10.1073/pnas.1005372107\nLarge-scale in vivo femtosecond laser neurosurgery screen reveals small-molecule enhancer of regeneration.\nC. Samara, C. B. Rohde, C. L. Gilleland, S. Norton, S. J. Haggarty, M. F. Yanik.","domain":"optical_engineering"}
{"url":"http://platinumchest.com/tag/canon/","date":"2020-10-28T05:31:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107896778.71/warc/CC-MAIN-20201028044037-20201028074037-00253.warc.gz","language_score":0.8413774967193604,"token_count":147,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__86542284","lang":"en","text":"Bring your photographic subjects closer with this Canon EF-S 55-250mm f/4-5. 6 IS Image Stabilizer Telephoto Zoom Lens. It is designed with Canon's Optical Image Stabilizer technology and is compact\n- New 2oz. Handy Plastic Spray Bottle\n- Arrives empty. Fill with water or your favorite cleaning solution. Keep one in your office, purse, or by your computer.\n- Ergonomic 2oz des\nThe Canon 5900B100 PowerShot SX260 HS 12. 1 MP Compact Digital Camera, in black, is an ultra-slim camera with a powerful 20x Optical Zoom, Optical Image Stabilization and 25mm Wide-Angle lens but that","domain":"optical_engineering"}
{"url":"https://www.amylacombe.com/2020/12/30/the-account-of-starscope-monocular-telescope-has-actually-only-gone-viral/","date":"2021-10-20T10:51:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585305.53/warc/CC-MAIN-20211020090145-20211020120145-00136.warc.gz","language_score":0.9530379176139832,"token_count":1203,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__213990581","lang":"en","text":"To use the superstar range monocular telescope appropriately, you will require a digital camera, your quite personal mobile phone, as well as an electrical power adapter. This device additionally features a completely removable holding instance, and there are even those that come with a hand strap. Since the unit is actually powered by the same power that you will take into a binocular, you can utilize the same power when it is needed to energy the unit. The ability to attach a photo voltaic charger likewise creates this a wonderful device to make use of as there is no sunlight on call. Starscope Monocular Reviews – Monocular with Smarphone support launched\nYou will certainly wish to produce certain that you use the appropriate eyepieces in order to check out the far distances that you wish to view. By utilizing the right eyepieces, you are going to be capable to view factors as far away as 30 opportunities additionally than those that you could if you did not utilize the right eyepieces.\nTogether with the energy to allow you to see traits as much as thirty times even more than you will have the capacity to without this outstanding tool, comes a high quality lens that will certainly allow you to take pleasure in very clear pictures even when it is not windy exterior. The Starscope monocular carries out include a hard-wired zoom lense that will provide you outstanding zoom capabilities. This is specifically significant if you want to receive a great image of a things that is actually not also close to your image. The hard-wired zoom lens is actually additionally a prime component that permits you to simply attach the monocular to your backpack or a headpiece. The truth that this monocular possesses its personal battery also makes it a popular choice among many novices. The lens cell is also efficient in giving you exceptionally good picture premium, which indicates that you may use the monocular to see things that are actually far away while being able to appreciate good photo top quality in your lower eye comfort.\nIt is also extremely useful for daydreaming considering that it allows you to make use of the tool without having to panic concerning attaching it to any kind of computer system, so you may use it in the convenience of your home without possessing to worry regarding disturbing anyone. They typically utilize their own individual zoom lenses to enhance the clarity of their images, as well as they adore the reality that they carry out not possess to bring a smart phone around to snap any kind of images.\nA superstar range monocular telescope is just one of one of the most beneficial and functional tools you can easily own. A monocular is merely an easy unit: it feels like a set of binoculars, simply for one eye as opposed to two. It is actually practically a tiny telescope, usually developed to bring extremely far-off items right into quite close emphasis. Considering that it has an extremely tiny unprejudiced lense – commonly only a few ins across, yet may be as large as 24 ins or so – it is actually far more portable than field glasses and also hence easier to bring. A superstar extent can be a wonderful device for researching celestial objects, including stars, moon, earths, and also even satellites.\nThe method the celebrity range monocular telescope jobs is by utilizing a reasonably basic modern technology referred to as an unbiased lense. The gadget makes use of a targeted visual road to permit it to produce an image by showing light that is actually captured through the lense onto its objective lense.\nIt likewise utilizes a very advanced approach named photo stabilization because a star scope monocular telescope is thus little. The unit uses a very top quality lens component attached to the back end of the sensor in order to eliminate ‘hop’ that occurs when the lens is actually brightened by sun light. Through using this element, the depth of industry is actually significantly reduced, which enables the individual to observe far away locations that would otherwise be shut out due to the vivid sunshine or other lights.\nThe upcoming thing in a star scope monocular customer review is what kind of building the device has. A lot of individuals perform certainly not also have to stress regarding this part given that nearly all modern models are actually helped make making use of a completely technical design.\nSome users likewise desire to manage to quickly move the unit between hands. This may effortlessly be actually done if the celebrity extent monocular telescope possesses an integrated, compatible lens body. Normally, one edge of the lense will definitely be dealt with as well as the other side can be eliminated easily. By doing this, the individual can easily place the predetermined side on a dining table and afterwards remove the one that they wish to utilize for personal watching.\nMuch more necessary than the kind of lense is the quantity of lighting that is actually transmitted via that lens. The quality of the lens is actually especially necessary sometimes when the user will definitely be actually monitoring stars at much spans. Because of this, starscope monocular reviews constantly point out a particular version’s capacity to give crystal clear photos at these high magnifyings.\nA final location that users will want to check prior to acquiring a superstar range monocular enters your mind: range efficiency. Within this area, consumers will review the magnification, the eye relief, field of vision, and also other features of different designs. These measurements are often shared as an amount of the angled views between the two zooming lenses. The higher the portion, the better high quality of the lens will definitely be actually. This applies especially to those customers that will certainly be focusing on extremely remote celebrities. As a whole, a ten percent misinterpretation at far ranges is acceptable.\nA whole lot of folks like this type of telescope due to the fact that it is actually therefore simple to make use of and also but still gives excellent power. Individuals must anticipate to spend a pair of dollars for a respectable carrying out tool if they want to use it at evening.","domain":"optical_engineering"}
{"url":"https://bbpsales.com/product/infraspec-nr800/","date":"2023-01-26T23:13:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494826.88/warc/CC-MAIN-20230126210844-20230127000844-00317.warc.gz","language_score":0.9178343415260315,"token_count":464,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__247869005","lang":"en","text":"InfraSpec NR800 is a Fourier Transform Near-Infrared Analyzer (FT-NIR) that offers unparalleled reliability and stability for a wide range of process and laboratory applications. Its high wavelength resolution, outstanding accuracy and wide scanning range deliver more process information than ever before. The NR800 offers simple operation in the field, user-friendly software, and powerful tools for engineering, maintenance and data management.\nStability and Reliability\nIn addition to the well-known features of FT-NIR of high throughput and quick response time, the NR800 employs a newly-developed Michelson interferometer with vibration-resistant mechanism that ensures even more reliable and stable operation. Unlike other FT-NIR\nsystems, the NR800 runs without a PC as a completely stand-alone system for on-line measurement. Analyzer operations cannot be interrupted by a PC failure nor be affected by rapid changes in PC technology.\nThe wavelength resolution of the NR800 is from 4 cm-1. A best-fit band can be used for calibration models and measurement. High resolution is especially useful for foodstuff and pharmaceutical applications.\nUp to 4 multi-stream channels with no moving parts\nThe NR800 provides up to 4 channels for multiple spectrometers. Channel switching is done electrically and no mechanical moving parts are used, thus ensuring maximum reliability and fast response.\nSingle detector throughout the wavelength range\nThe measurement wavelength range of the NR800 is from 900 nm to 2500 nm, revealing new information and offering a more accurate calibration model. A single detector InGaAs is used throughout the scanning range.\nCalibration model transfer\nLaboratory models can be applied directly to systems on the process stream, model transfer between analyzers can also be done. It realize “seamless” transition from laboratory to process.\nIn 1993, Yokogawa released the NR500 as the first FTNIR for process monitoring, most parts of which such as the interferometer were specially designed from scratch for process use. The NR800 inherits the same design concept as well as field experience, and various improvements and additions have been made.\nLearn about other Fourier Transform Near-Infrared Analyzers available at BBP.","domain":"optical_engineering"}
{"url":"http://www.adflyer.co.uk/toys-and-games/other-toys-and-games/20-x-17mm-jewellers-jewelry-loupe-magnifier-eye-ma/1701274","date":"2015-07-05T02:38:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-27/segments/1435375097199.58/warc/CC-MAIN-20150627031817-00095-ip-10-179-60-89.ec2.internal.warc.gz","language_score":0.7977343797683716,"token_count":244,"dump":"CC-MAIN-2015-27","global_id":"webtext-fineweb__CC-MAIN-2015-27__0__164944707","lang":"en","text":"Great Jewelry Loupe Magnifier for the watch making industry, specially for inspecting the tiny objects. 20 x 17mm Eye Loupe is great for jewelry, coins, stamps and antiques etc. Tiny, great to have one in your pocket all the time.\n20 x 17mm Jewellers Jewelry Loupe Magnifier Eye Magnifying Glass\nThe lens of Eye Loupe Magnifier is made of optical glass for extra sharpness and clarity\nRound swing-away chrome plated case\n20 times magnification power for extra sharpness and clarity.\nFoldable and portable Loupe Magnifier is convenient for your carrying.\nIdeal for jewelry, coins, stamps, gems and antiques etc\nYou can get an extremely close view of the tiniest details\nJewellers Magnifier is great for inspecting gems and diamonds\nIdeal for finding the hallmarks on silver and gold.\nInclude a small loop to attach to a neck chain or key chain\nLens diameter: 17mm\nDimensions (cm): L28 x W21 x H19 mm(When closed)\n1 x Jewelry Loupe Magnifier\nAvailability: Usually ships in 1-2 business days.","domain":"optical_engineering"}
{"url":"http://www.farnell.com/uk/leds/index.php","date":"2014-11-28T12:04:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-49/segments/1416931010166.36/warc/CC-MAIN-20141125155650-00028-ip-10-235-23-156.ec2.internal.warc.gz","language_score":0.9188549518585205,"token_count":186,"dump":"CC-MAIN-2014-49","global_id":"webtext-fineweb__CC-MAIN-2014-49__0__22138751","lang":"en","text":"LEDs From Farnell\nLEDs, Standard LEDs, LED indicators and other optoelectronics from industry-leading manufacturers, in stock and ready to ship today.\nOver 450,000 products in stock!\nLEDs are used in a multitude of applications for indication purposes. Non-visible LEDs, using UV and Infra-red parts of the spectrum, are frequently used in medical, security, and non-contact sensing applications. Recent technological advances in the LED market have seen the introduction of very high brightness white LEDs, which has opened up a new market in high-efficency lighting applications.\nFarnell offer an extensive choice of LEDs, including standard LEDs, panel mounted LED indicators, power illumination LEDs, non-visible LEDs and LED lamp replacements. These LEDs are available in various colours, package styles, and intensities. Take advantage of our high quality service to help you make the right design choices.","domain":"optical_engineering"}
{"url":"http://laboratoryequipment.sell.curiousexpeditions.org/pz68f887e-white-light-ophthalmic-pantoscopic-ophthalmoscope-portable-digital-imaging.html","date":"2017-06-26T03:46:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320669.83/warc/CC-MAIN-20170626032235-20170626052235-00378.warc.gz","language_score":0.8126513361930847,"token_count":383,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__133330541","lang":"en","text":"Brand-New Ophthalmic Instrument Ophthalmic Pantoscopic\nOphthalmoscope Digital Imaging\nModel : MCE-800\nThe brand-new Pantoscopic Ophthalmoscope is a portable digital\nimaging device which makes it possible to view and take pictures of\nthe eyes. The optical access of the Pantoscopic\nOphthalmoscope is aligned to the visual axis of smartphone camera\nby the adaptor which allows to you take pictures of the fundus and\nretinal nerve in high resolution.\nYou could save pictures for each patient or email and print as\nneeded. The Pantoscopic Ophthalmoscope provides a 5X larger view of\nthe fundus compared with the standard ophthalmoscope.\nIt has a wider view field of 230 .Without dilating the pupil, the\nfundus imagine could be captured at any time and places.\n|Name||Ophthalmic Pantoscopic Ophthalmoscope|\n· Rapid capture of fundus images on your cellphone.\n· Get eyeground documentation in an easy and low-cost way.\n· Send images to your peers across the continum of care instantly.\n· Easy carry to capture images at any clinical circumstance and\n· Make patient education easier.\n· 5X larger view of the fundus vs. standard ophthalmoscopes in an\n· Halogen lamp provides bright, white light.\n· Apertures and Filters:\nLooking at the pupil through an add-on corneal viewing lens, the\npractitioner can detect lens\nIn the same way, vitreous opacities could be detected by asking the\npatient look up and down, to the right and to the left.\nBecause the eye changes position or returns to the primary\nposition,all vitreous opacities could be seen moving across the","domain":"optical_engineering"}
{"url":"https://www.surveying.com/en/european-style-tribrach-with-optical-plummet.html","date":"2018-02-20T20:55:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813109.36/warc/CC-MAIN-20180220204917-20180220224917-00378.warc.gz","language_score":0.837598979473114,"token_count":173,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__173674282","lang":"en","text":"European-Style Tribrach with Optical Plummet\nThis high-quality tribrach features an optical plummet and 2X magnification and a twist focus\nIts reticule is composed of two small concentric circles\nWith a sighting distance of 0.3 m to 15 m, the tribrach has an accuracy of 0.5 mm per 1.5 m\nLocking forced-centering knob and a 5/8 x 11 base and an 8-minute circular vial\nWeighs 1.55 lb (0.70 kg)\n||Europe & USA\nWrite Your Own Review\nOnly registered users can write reviews. log in register\nYour comments are highly appreciated!\nWrite your comment now and have a chance to win a 20€ gift\nEvery month we will annouce new winner.\nYou may also be interested in","domain":"optical_engineering"}
{"url":"https://www.alpha-electronics.com/flir-c2-thermal-imaging-camera.html","date":"2017-04-28T02:26:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122726.55/warc/CC-MAIN-20170423031202-00081-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8529995679855347,"token_count":725,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__151164546","lang":"en","text":"FLIR C2 Thermal Imager\nReceive one extra year of Warranty so that you have 3 years peace of mind.\nThe Powerful, Compact Thermal Imaging System\nThe FLIR C2 is the world's first full-featured, pocket-sized thermal camera designed especially for building applications. Keep it on you so you're ready anytime to find and show hidden heat patterns that point out energy waste, structural defects, plumbing clogs, HVAC issues, and other problems.\nPocket Portable and Ready to Go\nThe slim, light profile fits comfortably in any work pocket so you can always keep your C2 at your side and never miss an opportunity to uncover invisible building issues, show them to customers, and offer helpful solutions. Use it as a non-destructive assessment tool and a reliable way to verify the success of completed repairs.\nShow More with Sensitive Thermal Imaging and a Wide FOV\nThe C2's 4800-pixel resolution, high sensitivity detector captures and displays subtle thermal patterns and small temperature differences useful in building applications. And a generous 45° field-of-view frames in more of the scene the way pros need to see it.\nMSX® Image Enhancement Only From FLIR\nC2 features FLIR's unique MSX® that adds key details from the onboard visible light camera to the entire infrared image in real time. The result: an all-in-one, undiluted thermal picture with visible light features that lets you instantly recognize where the problematic heat pattern is. MSX® is real-time whether watching the camera's LCD or streaming video over USB.\nFull Radiometric Flexibility for Powerful Reports\nThe C2 JPEG images store 4,800 individual measurements that can be post analyzed using FLIR Tools software that is included with the camera. You can analyze, change color palettes and access both thermal and visible imagery to create convincing reports.\nLight, slim profile fits comfortably in any work and street-wear pocketM\nBrilliant 3” intuitive touch screen with auto orientation for easy viewing\nMSX® FLIR’s proprietary multi-spectral-imaging feature gives you stunning image clarity\nBuilt-in LED spotlight you can use as a flashlight and for photo illumination\nWide angle lens is optimized for building applications\nFully radiometric images lets you measure any point on the image in post analysis on scenes between -10°C to 150°C\nStreaming video via FLIR Tools, a feature not usually available on low-cost systems\nIncludes FLIR Tools software for Mac or PC, downloadable from FLIR\nFLIR’s unique 2-10 warranty, covering parts and labor for two years and the detector for ten\nApplications for FLIR C2 Compact Thermal Imaging System\nSee What You’ve Been Missing!\nSave thermal image JPEGs instantly, then conveniently adjust and analyze them later with FLIR® Tools to isolate temperature measurements on any pixel and create convincing reports.\nNow, FLIR takes thermal imaging up another innovative notch with MSX® (Multi-Spectral Dynamic Imaging), bringing together the key elements of what you can see with your own eyes and what you can only perceive with an infrared camera to form one striking, definitive image. So there’s no more guesswork or messing around with extra photos\nWhat's in the box:\nFLIR C2 Imaging System\nBattery (inside camera)\nPower supply/charger with EU, UK, US, CN and Australian plugs\nPrinted Getting Started Guide\nUSB memory stick with documentation","domain":"optical_engineering"}
{"url":"https://www.channelsystems.ca/events","date":"2021-01-25T16:39:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703587074.70/warc/CC-MAIN-20210125154534-20210125184534-00708.warc.gz","language_score":0.94682776927948,"token_count":105,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__121663640","lang":"en","text":"chii2020 Conference on Hyperspectral Imaging in Industry!\nchii2020 is the international branch meeting of hyperspectral imaging in industry. The aim of the conference is to show the vast potential lying within the use of HSI.\nchii2020 is designed as interdisciplinary crosslink between the various hyperspectral interest groups such as application, technology and service. The conference focuses on industrial solutions for machine inspection and remote sensing as well as the future of HSI.\nFollow the link for more info!","domain":"optical_engineering"}
{"url":"http://megaphase3d.com/en/about","date":"2024-03-01T11:24:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00874.warc.gz","language_score":0.9263249039649963,"token_count":392,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__95994007","lang":"en","text":"Mega Phase Technology, located in Shanghai Zhangjiang Science City, is a well-known industrial Machine Vision Manufacturer in the industry. The company has advanced technology development and management experience. Since its establishment, the company has made remarkable achievements in technology research and development, and has a number of invention, utility model and software copyright patents.\n\"Innovation Creates Value\". Mega Phase Technology is committed to promoting the overall upgrading of the industry and creating a world-class industrial Machine Vision brand through advanced technology and outstanding Machine Vision products.\nMega Phase Technology owns its own intellectual property rights. The products are divided into 5 series with 16 models, covering 11 FOVs from 20 mm to 800 mm. Customers are widely active in consumer electronics manufacturing, automotive, new energy, precision manufacturing and major research institutes and universities. H40 won the special prize of \"2018 CMVU Innovative Product Award\"; S162060 won the \"2021 Best Product Award( Machine Vision category)\" of \"Control Engineering China\" and \"Innovator Awards 2021\" Silver Award of \"Vision System Design China\" .\nThe Hybrid Data Camera is independently developed by Mega Phase Technology, which breaks through the bottleneck of the traditional defect detection system in the imaging end, has the advantages of excellent performance, highly integrated, flexible and efficient, and more convenient hardware deployment, providing AI with more data, higher information density and more effective. It is suitable for most of the difficult defects detection needs, and can be widely used in 3C, lithium batteries, semiconductors, automotive manufacturing, PCB/PCBA, glass, photovoltaic, food processing, precision manufacturing and other industries. The Hybrid Data Camera has been launched in nine models, covering three resolutions of 8.1 m, 16.2 m and 20 m pixels. In 2023, Hybrid Data Camera won the Innovators Awards Gold Award and the China Achievement Award of \"Vision System Design China\" .","domain":"optical_engineering"}
{"url":"http://www.tela-inc.com/paper-predicts-the-use-of-regular-1d-patterns-can-help-extend-cmos-logic-to-7nm-node/","date":"2013-05-24T23:48:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705284037/warc/CC-MAIN-20130516115444-00058-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.926578938961029,"token_count":465,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__134619698","lang":"en","text":"Paper predicts the use of regular 1D patterns can help extend CMOS logic to 7nm node\nAt the 2012 SPIE Conference a paper was jointly presented by Tela and engineers from Leti, the French applied research center, that showed the benefits of a highly regular layout style comprised of “lines” and “cuts”. Entitled “Sub-20nm Hybrid Lithography using Optical + Pitch-Division and e-Beam”, the paper concluded that by utilizing regular 1D patterns instead of random 2D shapes – as well as a variety of other techniques – CMOS logic can be extended to the 7nm node using existing immersion lithography.\nIn the paper, the presenters showed how the “lines” can be done with existing optical immersion lithography and pitch division with self-aligned spacers. The “cuts” can be done with either multiple exposures using immersion lithography, or a hybrid solution using either EUV or direct-write ebeam.\nThe backdrop to the presentation was the state of optical lithography. Optical lithography improvements have enabled scaling far beyond what was expected; for example, soft x-rays (aka EUV) were in the semiconductor roadmap as early as 1994 since optical resolution was not expected for sub-100nm features. However, steady improvements and innovations such as Excimer laser sources and immersion photolithography have allowed some manufacturers to build 22nm CMOS SOCs with single-exposure optical lithography.\nWith the transition from random complex 2D shapes to regular 1D-patterns at 28nm, the “lines and cuts” approach can extend CMOS logic to at least the 7nm node.\nThe spacer double patterning for lines and optical cuts patterning is expected to be used down to the 14nm node. In the paper, the team demonstrated scaling to 18nm half-pitch which is approximately the 10-11nm node using spacer pitch division and complementary e-beam lithography.\nThe paper provides an excellent overview of how a combination of design styles, optical lithography plus pitch-division, and e-beam lithography appear to provide a scaling path far into the future.\nTo download this paper in its entirety, click here.","domain":"optical_engineering"}
{"url":"https://www.q-railing.com/es-us/sistemas/q-lights-linear-light/","date":"2021-03-05T06:58:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178370239.72/warc/CC-MAIN-20210305060756-20210305090756-00522.warc.gz","language_score":0.8270432949066162,"token_count":356,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__160439896","lang":"en","text":"¿Está seguro de que quiere eliminar este collage de ideas?\nEnhance your railings with Q-lights Linear Light. This linear LED system improves safety while creating an uninterrupted linear flow of beautiful ambient light on handrails and cap rails.\nNumerous effects are possible, including the warmth of warm white light and the brightness of cool white light. Also available: transparent or frosted covers and positioning either in front of or behind the railing’s glass. The strips can be dimmed with the specified transformer.\nPre-wired, with no visible cables to mar the look, Q-lights creates a beautiful homogenous light. Of course, it also greatly enhances user safety at night. What a great way to create a railing that leads users safely on their way when it’s dark.\n|Designed for:||Light to medium use|\n|Use:||Indoor (IP20 and IP67) and outdoor (IP67)|\n|Varieties:||Warm white light or cold white light|\n|Application:||Stairs, balustrades and wall railings|\n|Features:||■ LED strips for continuous lighting|\n|■ High-grade plastic profiles (transparent or frosted) cover the LED strips and prevent dazzle|\n|■ Pre-wired to eliminate visible cables|\n|■ Cap rail system turns a standard cap rail into a lighted cap rail|\n|■ Mounting on glass with the fitting rubber|\n|■ Specially designed Linear Light cap rail, it lets you adjust the LED strip so that it shines either in front of or behind the glass|\n|■ Suitable for retrofitting as part of a renovation|","domain":"optical_engineering"}
{"url":"https://www.cio.co.nz/article/471179/digital_light_processing/","date":"2018-07-20T10:57:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591578.1/warc/CC-MAIN-20180720100114-20180720120114-00136.warc.gz","language_score":0.9272270798683167,"token_count":1116,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__36967330","lang":"en","text":"When one first hears about digital light processing (DLP), it seems almost impossibly complex, even magical -- millions of tiny mirrors on a chip the size of your thumbnail, each of them capable of moving thousands of times per second to create a digital image. In fact, DLP (a trademark of Texas Instruments Inc.) gives new meaning to the phrase \"smoke and mirrors\" as it applies to computer-related technology. How DLP works\nIn essence, DLP is a nanotechnology implementation of the old survival technique of using a mirror to signal for help -- its purpose is to shine a controlled series of light flashes on a target to send a message. The mirror in this case is part of an optical semiconductor called a digital micromirror device, or DMD. The DMD chip contains not one but an array of up to 2.1 million microscopic mirrors, each just 16 micrometers square (less than one-fifth the size of a human hair) and 1 micrometer apart.\nThe DMD chip is driven by a digital video or graphic signal in which each digital pixel corresponds to a single mirror on the DMD. Add a light source and a projection lens, and the mirrors can reflect a digital image onto a viewing screen or other surface. Each mirror is mounted on tiny hinges, so it can be tilted 12 degrees toward or away from the light source, creating a light or dark pixel on the projection surface.\nThe control electronics direct each mirror to tilt -- in other words, to switch on and off -- up to 5,000 times per second. When a mirror is switched on more frequently than off, it reflects a light gray pixel; a mirror that's switched off more often reflects a darker-gray pixel. This lets DLP project up to 1,024 shades of gray.\nTo get color, such as for a TV set, a rotating color wheel (with red, green and blue filters) is put between the white light source and the DMD. The control input delivers separate signals for each of the three colors, and each mirror (i.e., each pixel) is switched on and off as the filter rotates each color between the lamp and DMD.\nFor example, to project a yellow pixel, a mirror will reflect only red and green light to the projection surface. To project a purple pixel, that mirror will be switched off while the blue filter is in position, and the blue and yellow flashes will alternate so rapidly, our brains will blend them together and we'll see purple. This process allows a DLP system to produce up to 16.1 million colors. Older DLP systems also included a clear segment to bump up overall brightness at the expense of color saturation.\nConsumer-grade television monitors use the system described above. For very large projection, such as in movie theaters and auditoriums, a more sophisticated system uses three DMD chips, one for each color, plus an optical prism. The prism splits white light into colors and then recombines the three images before sending them through the projection lens. This system, called DLP Cinema, can produce 35 trillion colors.\nIn most applications, DLP competes directly with LCD projection. DLP typically offers greater contrast (up to 5,000-to-1 vs. LCD's 800-to-1), with better blacks, while LCD produces greater color saturation. Side by side, an LCD display looks slightly sharper than a DLP in text display applications, but DLP has the edge with moving video, reducing pixelation, or the \"screen-door effect.\"\nThe brightest projectors still use LCD technology, which is slightly more efficient, but the smallest, lightest projectors use DLP. In 2003, DLP systems accounted for 13 percent of the market for large-screen televisions (over 40 inches), according to The NPD Group Inc., a Port Washington, N.Y.-based consultancy. In the past year, the number of models of DLP TVs has tripled.\nThe DMD chip was invented in 1987 by TI scientist Larry Hornbeck, who had been exploring the manipulation of reflected light since 1977. In 1992, TI started a project to explore the DMD's commercial viability. A year later, it named the new technology DLP and formed a separate group (now called the DLP Products division) to develop commercial display applications.\nIn 1994, TI demonstrated prototype DLP projectors for the first time. The technology's promise was quickly recognized. In 1997, the Academy of Motion Picture Arts and Sciences chose DLP to project film at the Oscars, where the first three-chip DLP technology was demonstrated to the Hollywood community.\nIn 1999, DLP Cinema was first demonstrated to the public with the release of Star Wars Episode I: The Phantom Menace. By December 2002, TI had shipped 2 million DLP subsystems.\nDLP Products has also received two Emmy Awards, for broadcast excellence in 1998 and for technology and engineering in 2003. In 2002, Hornbeck was elected a fellow of the International Society for Optical Engineering and received the David Sarnoff Medal from the Society of Motion Picture and Television Engineers.\nKay is a Computerworld contributing writer. You can reach him at email@example.com. -- Computerworld (US)\nJoin the CIO New Zealand group on LinkedIn. The group is open to CIOs, IT Directors, COOs, CTOs and senior IT managers.","domain":"optical_engineering"}
{"url":"https://webshop-english.cma-science.nl/categories/sensors/ml-sensors/light-sensor.html","date":"2024-04-20T23:24:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00025.warc.gz","language_score":0.8879317045211792,"token_count":289,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__90590904","lang":"en","text":"The Light sensor ML14s measures light intensity levels in 3 ranges, 0.35 to 22,937 lux, 1 to 65,535 lux (default), and 1.53 to 100,487 lux. This general-purpose sensor is suitable for indoor and outdoor measurements of light intensity. The sensor uses a photo detector, which is mounted on the surface under a glass window. To protect the glass window the sensor is closed with a plastic cap. The sensor has a mounting thread located on one side of the sensor.\nThe Light sensor can be used in a variety of measurements such as:\n• Inverse square law.\n• Measuring the light intensity levels of various sources.\n• Studies of transparency of materials.\n• Studies of light reflection.\n• The effect of light intensity on photosynthesis.\n• Investigating rates of reaction.\n• Weather study to monitor sunrise and sunset times.\n• Solar energy studies.\nThe Light sensor is a digital sensor (on-sensor digital conversion), which gives calibrated values of the measured quantity. This sensor can only\nbe connected to the CMA MoLab interface and not to other CMA interfaces such as VinciLab, CoachLab II+ or EuroLab.\nTechnical specifications of the sensor are described in its User's guide\nPrice ex VAT","domain":"optical_engineering"}
{"url":"https://navms.com/colors-of-distant-exoplanets-blue-doesnt-always-mean-life/","date":"2023-12-03T21:40:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.53/warc/CC-MAIN-20231203193127-20231203223127-00336.warc.gz","language_score":0.9594327211380005,"token_count":432,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__212314112","lang":"en","text":"Our Earth is also known as the blue ball. It was named by the famous astronomer Carl Sagan, in honor of the publication of the photograph of the same name, which was captured in 1990 by Voyager 1. This photograph captures the Earth from afar 6 billion km, writes the Universe Today portal.\nOur planet is already inextricably linked to the color blue. At the same time, the Earth is the only planet we know of capable of supporting life. It is therefore quite logical to think so habitable planets, like ours, may also be blue.\nBut it has a problem. Color is defined by astronomers as the intensity of light at a certain wavelength. The length of the wavelength that transmits the light determines its color. For example, if we had electromagnetic radiation with a wavelength of 450 nanometers, it would appear blue to our eyes. But what the human eye considers color is only a small part all wavelengths of the electromagnetic spectrum.\nDifferent parts of the spectrum\nTelescopes can perceive different parts of the spectrum that our eyes cannot perceive, such as the ultraviolet or infrared spectrum. These parts could also be used considered a certain color. If people were able to perceive the full range of the electromagnetic spectrum, the night sky would be much brighter for us.\nBut how would we perceive distant exoplanets? Currently scientists they do not have telescopes powerful enough to distinguish the light of the planet, similar in size to the Earth and its stars. These two different light sources blend together. Scientists know there are exoplanets out there. They can even determine their size and whether they have a solid surface, but they don’t know any more. Even with the advent of more powerful telescopes, scientists wouldn’t be able to determine what they’re looking at. They would have no point of reference for comparison.\nAstronomers admit that they have no idea what our Earth would look like if we looked at it from hundreds of light years away and it would orbit another star. Our planet would be similar completely differentif the light of a red or blue star falls on it.\nYou might be interested","domain":"optical_engineering"}
{"url":"https://kevinpate.net/sigma-100-400mm-f-5-6-3-dg-dn-os-contemporary-lens-for-sony-e-mount","date":"2023-12-06T04:34:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00146.warc.gz","language_score":0.9379590153694153,"token_count":1154,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__199059524","lang":"en","text":"I have several Sigma lenses for the Nikon cameras I’ve owned. They’ve always performed well for me and come in at a lower cost then the camera manufacturer lenses, so when I bought my new Sony A7 IV I wanted to give some of the Sigma e-mount lenses a try. I bought the Sigma 100-400mm primarily for shooting some of my daughters sporting events.\nThe Sigma 100-400mm f/5-6.3 DG DN OS Contemporary Lens for Sony E-Mount is a powerful and versatile telephoto zoom lens designed for use with full-frame mirrorless cameras. With its impressive range, compact design, and advanced features, this lens is a popular choice among both amateur and professional photographers. In this review, we will take a closer look at the Sigma 100-400mm E-mount lens and evaluate its performance in various shooting scenarios.\nDesign and Build Quality\nThe Sigma 100-400mm E-mount lens is designed with a compact and lightweight body that measures only 3.4 inches in diameter and 7.8 inches in length. This makes it easy to handle and carry around, even during extended photo shoots. The lens is constructed with high-quality materials, including a durable metal barrel and a sturdy bayonet mount that ensures a secure and stable attachment to the camera body. The lens also features a weather-resistant design that protects it from dust and moisture, making it suitable for use in challenging outdoor conditions.\nThe lens features a zoom ring and a manual focus ring that are both smooth and easy to operate. The zoom ring is located closer to the camera body, while the focus ring is located closer to the front of the lens. This placement makes it easy to switch between zooming and focusing without having to adjust your grip on the lens. Additionally, the lens features a customizable AFL (Auto Focus Lock) button that allows you to lock the focus on a particular point or object, even if you move the camera.\nThe Sigma 100-400mm E-mount lens is equipped with a range of advanced optical technologies that ensure sharp, clear, and detailed images. The lens features 22 elements in 16 groups, including one FLD (“F” Low Dispersion) and four SLD (Special Low Dispersion) glass elements. These elements help to reduce chromatic aberration and distortion, resulting in images with accurate color rendering and minimal fringing.\nThe lens also features a Super Multi-Layer Coating that minimizes ghosting and flare, even in bright sunlight. This coating is particularly useful when shooting backlit subjects or scenes with a high contrast range. The lens also features a rounded 9-blade diaphragm that creates a smooth and natural bokeh effect, making it ideal for portrait and wildlife photography. Here’s a sample shot from one of my daughter’s basketball games – I’ll post more photos when I try this lens out in different environments:\nThe Sigma 100-400mm E-mount lens is equipped with a fast and accurate autofocus system that ensures sharp and clear images, even when shooting moving subjects. The lens features a stepping motor (STM) that provides quiet and smooth autofocus operation, making it ideal for video recording. The autofocus system also includes a focus limiter switch that allows you to adjust the focus range to suit your shooting needs. This switch is particularly useful when shooting distant subjects or scenes with a complex foreground.\nThe Sigma 100-400mm E-mount lens features an Optical Stabilizer (OS) system that provides up to four stops of shake compensation. This system helps to reduce camera shake and blur, particularly when shooting handheld or in low-light conditions. The OS system also includes two modes: Mode 1 is designed for general photography, while Mode 2 is designed for panning shots. The mode switch is located on the side of the lens barrel, making it easy to access and adjust.\nThe Sigma 100-400mm E-mount lens is a versatile lens that is suitable for a wide range of shooting scenarios, including wildlife, sports, portrait, and landscape photography. The lens offers a powerful zoom range that allows you to get up close and personal with your subject, even from a distance. This is particularly useful when shooting wildlife or sports, where it may be difficult to get close to the action.\nThe lens also performs well in low-light conditions, thanks to its maximum aperture of f/5-6.3. While it may not be as fast as some of the prime lenses on the market, the Sigma 100-400mm E-mount lens is still capable of producing sharp and clear images, even in challenging lighting situations. Switching over to continuous shooting mode on the camera, this does provide fairly rapid shots.\nOne of the standout features of the Sigma 100-400mm E-mount lens is its autofocus performance. The autofocus system is fast and accurate, even when shooting moving subjects. The focus limiter switch is also a useful feature that allows you to adjust the focus range to suit your shooting needs.\nIn terms of image quality, the Sigma 100-400mm E-mount lens produces sharp and detailed images with accurate color rendering. The lens is particularly good at controlling chromatic aberration and distortion, resulting in images with minimal fringing.\nOverall, the Sigma 100-400mm E-mount lens is a high-quality telephoto zoom lens that offers excellent performance in a compact and lightweight package. Whether you’re a wildlife photographer, sports enthusiast, or landscape shooter, this lens is a versatile and reliable option that will help you capture stunning images with ease.","domain":"optical_engineering"}
{"url":"https://jobs.entreecap.com/companies/lightsolver-ltd","date":"2024-02-27T06:45:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474671.63/warc/CC-MAIN-20240227053544-20240227083544-00123.warc.gz","language_score":0.8775163292884827,"token_count":115,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__111090254","lang":"en","text":"Tel Aviv-Yafo, Israel\nHardware · Information Technology\nLightSolver is planning to build an optical solver to find the optimal solutions for the most complicated computational problems, within the shortest timeframe. They developing an innovative all-optical, quantum-inspired device, which will use the natural properties of light such as deep connectivity and massive parallelism, to find the optimal solution at the speed of light. This device, based on coupled lasers array, will be desktop size, will operate at room temperature, and will use low power consumption.Something looks off?","domain":"optical_engineering"}
{"url":"https://twinscommunications.co.uk/fibre-optics/","date":"2022-08-17T14:31:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572908.71/warc/CC-MAIN-20220817122626-20220817152626-00481.warc.gz","language_score":0.9145413637161255,"token_count":727,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__100309695","lang":"en","text":"Twins Communications delivers a range of fibre optic cabling solutions according to your system requirements, environment and budget.\nA fibre optic cable contains a couple of glass cores and every core is thinner than a human hair and can transmitting information via gentle waves and reaching more incredible transmission speeds over an extended distance.\nFibre optic cabling is widely utilised in technology and telecommunications as a result of its hefty bandwidth, and superior range in comparison to copper. Twins Communications offer a wide range of fibre optic cabling solutions from legacy OM1 through to the newer OM5 and OS2 specifications. Including OM1 OM2 OM3 OM4 OS1 OS2 in either internal or external environments. Our service engineers can provide network design and specification through to fully managed surveys and installations for a wide range of projects.\nWe provide fibre optic cabling installation to suit all requirements and functions in addition to delivering OM1, OM2, OM3 and OM4 standard fibre optic cables in internal or external environments. Our team experience covers warehouse and external building installations in these type of environments powered access is widely used, and our field engineers are proficient in the installation and use of powered scissor and boom lifts.\nIf you require single-mode, fibre optics Twins Communications can install single-mode fibre optics in various applications internally and externally.\nFurthermore, OS1 and OS2 fibre have a smaller internal core size compared to multimode fibre. Consequently, in many features, the installation of both OS1 and OS2 are the same. If you are unsure on this requirement, our team will be able to advise you on a suitable solution for your environment, technology and networking requirements. To add OS1 fibre cables are usually found in audio-visual installations and long-distance connections.\nThe most common cable category is the multimode fibre which is the backbone found I commercial based installations—so choosing the correct and most suitable fibre optic cabling. Will ensure that you get the best performance from your IT infrastructure. The results of selecting the right fibre optic cabling are to increase productivity and effectiveness for your workforce and business growth.\nInstalling Blown Fibre cabling provides the advantage of the expansion of additional network links through initial installation of blown fibre cabling ducts. Twins Communications provides design, advisory as well as installation of a full range of blown fibre cabling solutions. Also are field engineers can install empty ducting cable for broadband providers such as BT and Virgin to allow easier planning of works throughout commercial spaces.\nFor your business to keep up to date and obtain high data transfers, fibre optic to desk applications is a must, and we see more companies adopting this setup.\nTwins Communications can offer you the choice to splice your existing fibre optic cable allowing the ability to extend or relocate without the need to re-run the entire cable length. We use industry-standard splice machines at a time to terminate new fibre optic cable installations to achieve minimal loss during the removing of joints.\nTwins Communications provides fibre optic cable testing for faulty and suspected broken fibre optic cabling. We can find the exact point of failure along the cable. We then enable a corrective splice to remove the need for new cabling and disruption to your business.\nTwins Communications can provide surveys and installations at any time during a working week to suit our client’s needs and. Minimising disruption for your business and downtime for your IT infrastructure.\nIf you would like to find out more about how we will get your fibre optic cabling projects right first time, talk to our team today.","domain":"optical_engineering"}
{"url":"https://www.androidyurdu.com/these-are-the-most-professional-lenses-and-lenses-for-your-iphone-camera/","date":"2022-05-25T03:16:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662578939.73/warc/CC-MAIN-20220525023952-20220525053952-00598.warc.gz","language_score":0.9249714612960815,"token_count":1442,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__24836125","lang":"en","text":"Improve the quality of your photos with these lenses for your iPhone camera.\nAny hobbyist –amateur or professional – at photography knows perfectly well that the iPhone smartphone camera is more than enough to achieve the perfect photograph. After all, as photographers often say, “the best camera is the one you take with you”. In fact, just take a look at Apple’s “Shot on iPhone” campaign, and the photographic results are absolutely stunning.\nAnyway, there are very useful instruments and tools that can further improve the quality of photos taken with an iPhone. We are talking about instruments such as iPhone tripods, lenses and camera lenses. That’s right, there are a few small lenses that attach to the iPhone camera and open up endless possibilities for enhancing your photos.\nIn this buying guide we will select the best camera lenses and lenses compatible with the latest iPhone models. There is a wide variety of professional lenses for the iPhone camera and other smartphones. There are wide angle lenses, fisheye lenses, kaleidoscope lenses, macro lenses… Discover all you can do with these useful photography accessories!\nWhat are iPhone camera lenses and lenses?\nBefore starting our collection of iPhone lenses, let’s briefly explain what these little accessories are and how they work.\nLenses – also known as lenses – for iPhone are small accessories that attach to the back of the phone where the camera is and provide the ability to try out different types of photography and improve the quality of your photos. images obtained.\nAs we mentioned earlier, there are different types of lenses. In addition, manufacturers often offer lens kits and lens kits with different effects such as fisheye, macro, anamorphic, kaleidoscope, telephoto, wide angle…\nSo much so that Apple’s iPhone phones have some advanced hardware in addition to cameras, especially in the ultimate generation of iPhones, and also that the use of this type of nits may improve the quality of the photos of the camera.\nThe reality is that Apple iPhone camera lenses can be a great alternative to buying a new or different iPhone model. Many photography-savvy consumers decide whether to buy an iPhone or another based on the photographic qualities of its camera, but given the high price of some iPhone models, it can be a great option to buy one. lens kit instead of making such an economic investment.\nLenses and Lenses for iPhone\nSelvim lens kit\nThe Selvim brand lens kit is one of the most recommended on the market, in fact It is the best selling lens product on Amazon.. This is a series of high quality Blu-hay lenses that increase the performance of the lens in image processing.\nTherefore, the Selvim lens kit will allow you to take photos with the iPhone with a much higher resolution and with more definition. The kit consists of a wide angle lens, a macro lens and a fisheye lens. Additionally, it comes with a built-in tripod and a telephoto lens.\nLens Types: Macro, wide angle and fisheye.\nCompatible smartphones: iPhone 5s, iPhone SE, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, Samsung Galaxy S6 , Samsung Galaxy S6 Edge, Samsung Galaxy S7 and Sony, LG, OnePlus and Huawei smartphones.\nOlloclip is one of the most popular smartphone lens manufacturers in the world, its proposal is a clip with a fisheye, wide angle and 15x macro lens equipped with the Connect x Lens system that allows the lenses to be exchanged with other brand goals.\nIt is a compact and very easy to use lens, with a dock that adheres perfectly to the iPhone and they also work with all camera apps to create fantastic panning and time-lapse artwork.\nLens Types: Macro, wide angle and fisheye.\nCompatible smartphones: iPhone XR, iPhone XS and iPhone XS Max.\nApexel 10 in 1 Lens Set\nThe kit from the Apexel company is gigantic, no more and no less than 10 lenses for a fairly reasonable price. The kit includes a 0.63x wide angle lens, a 2x telephoto lens, kaleidoscopes, a lens with star filter, another with flux filter and a 15x macro lens.\nRegarding its connection to the iPhone, the Apexel lenses have a small accessory with a very simple mechanism that connects in a similar way to how a clamp. The only bad thing is that the design makes this lens mount practically protrudes about 10 cm. But it does its job like a charm.\nAdditionally, it should be noted that the kit comes with its own carrying case which prevents the lenses from being impacted and damaged.\nLens Types: Telephoto, kaleidoscopes, fisheye, wide angle and macro.\nCompatible smartphones: iPhone 6, iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone X, Samsung Galaxy, iPad.\nYolistar telescope lens\nThe Yolistar brand markets a telescope-shaped lens and a clamping mechanism to attach it to the phone. The pack also comes with two covers for the telescope lens and a mounting clip with a tightening mechanism.\nIt is a high definition telescope with adjustable focal length and with a 12x magnification which allows you to capture a clear view in photos. Ideal for football games, concerts, travel and wildlife.\nLens Types: 12x HD telescope\nCompatible smartphones: iPhone, VIVO, OPPO.\nZtyluz 4 in 1 revolver lens\nFinally, we recommend the lens with revolver mechanism of the Ztyluz brand. A photography accessory equipped with four different lenses that we can change in seconds.\nIt has a macro lens, a wide angle lens, a fisheye lens and a CPL lens. It is the most professional option of this selection, both in its quality and in its materials and mechanism. Therefore, its price is much higher than the rest of the options.\nLens Types: Macro, wide angle, fisheye and CPL.\nCompatible smartphones: iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus.\nhere are the lenses more professionals that you will find on the market for your iPhone. As you may have seen, there are a wide variety of lenses and all of them are compatible with many iPhone models. They are a very good alternative for all photography enthusiasts and there are very affordable options.\nRelated Topics: shopping\nThis article suggests objective and independent products and services that may be of interest to readers. When the user makes a purchase through the specific links that appear in this news, iPadizate receives a commission.\nSign up for Disney+ for 8.99 euros and without permanence","domain":"optical_engineering"}
{"url":"https://vultant.com/detail/Test,-Measure-Inspect/","date":"2021-05-12T15:24:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243990929.24/warc/CC-MAIN-20210512131604-20210512161604-00207.warc.gz","language_score":0.8424950838088989,"token_count":796,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__19342849","lang":"en","text":"Black Teal Orion 10015 StarBlast 4.5 Astro Reflector Telescope & 05662 1.25-Inch 13 Percent Transmission Moon Filter\n: Orion 10015 StarBlast 4.5 Astro Reflector Telescope (Teal) & 05662 1.25-Inch 13 Percent Transmission Moon Filter (Black) : Electronics. : Orion 10015 StarBlast 4.5 Astro Reflector Telescope (Teal) & 05662 1.25-Inch 13 Percent Transmission Moon Filter (Black) : Electronics. A great compact grab-and-go telescope designed for entry-level and intermediate astronomy enthusiasts; Focal length: 450mm 。 Substantial 4.5 inch aperture and fast f/4 focal ratio provides bright, detailed views of solar system targets like the Moon and planets, as well as wide-field celestial objects like nebulas and star clusters 。 Ships pre-assembled so you can go from the box to your backyard in minutes. Glass material : Low thermal expansion borosilicate glass 。 Stable tabletop base provides smooth altazimuth motion for easy manual tracking of celestial objects. Age Range-13 years 。 The Orion 1.25 inch 13 percent Transmission Moon Filter reduces glare so you can see more lunar detail and surface features with your telescope 。 Metal filter cell threads directly into the 1.25 inch barrel of your telescope eyepiece 。 Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming 。 Telescope eyepiece filter transmits only 13 percent of the incoming light, boosting contrast and ability to discern detail on the Moon 。 10015 StarBlast 4.5 Astro Reflector Telescope (Teal)。 offers quality telescopes for the whole family that are easy to use and will inspire your natural inclination to explore. The StarBlast, pint-sized in stature, is a real reflecting telescope that's super-simple to use and yet manufactured with the kind of quality you'd expect in more expensive models. The StarBlast 4.5 Astro Reflector Telescope is a point-and-view telescope that swivels smoothly on its sturdy, low-profile base. It comes pre-assembled and ready for astronomical action right out of the box! Just carry the telescope outdoors by its built-in handle, place it on the ground or on a picnic bench, and let the fun begin!。 05662 1.25-Inch 13 Percent Transmission Moon Filter (Black)。The Moon's disk, even at partial phases, is intensely bright with reflected sunlight. The glare washes out most of the craters, rilles, and other surface details from view. Our 1.25\"\" 13% Transmission Moon Filter reduces the glare, allowing transmission of only 13% of the reflected light. Not only will you see more surface features, but you can study them in greater comfort. The filter reduces irradiation, which is the distortion at the boundary between light and dark areas, such as along the lunar terminator. The Moon Filter is especially useful to owners of large-aperture scopes, in which the Moon's brightness can be overwhelming. It uniformly reduces light over the entire visible spectrum. Filter screws into threaded eyepiece barrel for secure attachment. 。 。 。\nWireless to the fullest.\nAfter a simple one-tap setup, AirPods are automatically on and always connected.1 Using them is just as easy. They sense when they’re in your ears and pause when you take them out. And the AirPods experience is just as amazing whether you’re using them with your iPhone, Apple Watch, iPad, or Mac.\nDouble tab to call Siri\nEasy setup magical results.\nWireless Charging Case\nWith one simple tap, share a song, podcast, or other audio stream\nbetween two sets of AirPods — each with independent volume control.","domain":"optical_engineering"}
{"url":"https://www.sentryprotectsyou.com/blog/5-benefits-of-thermal-imaging-cameras/","date":"2020-08-03T09:42:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735792.85/warc/CC-MAIN-20200803083123-20200803113123-00135.warc.gz","language_score":0.9313479065895081,"token_count":727,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__51754210","lang":"en","text":"The business world is switching towards the parameters that can benefit both their business and their clients. In order to […]\nThermal imaging is one of the effective techniques used for night vision and now can also be used in broad daylight. Thermal imaging cameras work by processing thermal radiation from an object. These cameras are widely used today in different areas of life, such as medicine, etc. and thermal image cameras have many advantages that an average camera can never offer. Some of the main benefits of these cameras are detailed below;\nThermal imaging is an advanced technique that can indicate many potential defects in heat propagation through a building. In the event of air leakage, a fever monitoring camera can highlight them for you, thus ensuring the maintenance of the heating economy of your building.\nThermal imaging cameras can also detect elevated body temperature through fever monitoring which is beneficial to ensure safety from COVID-19. Scanning software can instantaneously scan hundreds of commuters, passengers, employees and visitors in a given building.\nTo detect air leaks, it is recommended to check around the ceiling, windows, and doors for temperature changes, identifiable by their colors, a clear indication of where the air is escaping. It makes the fever detecting cameras very useful for uncovering the hidden issues in your building or home.\nA thermal imaging study allows you to identify any heat transfer problems in your home. If your property loses energy quickly, your electricity bills may be excessively high, but by using thermal imaging, you can determine where the energy is lost. Therefore, you know which areas require attention and repairs. These cameras are spot on and can detect the exact place of energy loss.\nThe fact that Hikvision thermal imaging cameras are portable that makes them ideal for assessing moisture damage and its severity. A thermal imaging report gives you more comfort and reliability compared to the structure of your property.\nIt’s best to spot the signs of a power failure before it’s too late!\nThermal imaging can allow you to identify overloaded or overheated circuits or whether a motor bearing may have failed, ultimately allowing you to repair faulty electrical components before they cause property damage or even occupant damage.\nUndetected power failures are likely to result in a power failure, and the last thing you want is for the power to go out. Thermal imaging surveys can quickly scan and measure the temperature distribution of entire surfaces of electrical and mechanical equipment under normal load conditions, eliminating the need for pre-inspection and extended preparation work. Thermal image cameras are advantageous because you can repair any faulty equipment or electricity on your property in time before it becomes too expensive!\nThermography is also very suitable for any industrial application. Most thermal imaging cameras are light. Because they are light, they can be easily transported from one place to another; Even cameras can be put in the bag. It provides great comfort to users. Its lightweight and portable design makes the cameras perfect when it is necessary to move around easily during whole building inspections, which speeds up the process and guarantees a high degree of accuracy in its results.\nAnother advantage of thermal vision cameras is that these are 100% invasive. Hikvision thermal cameras (or infrared cameras) are passive instruments, which means they detect infrared energy emitted by the subject’s surface. This passive and non-invasive approach ensures that the thermographer can maintain a safe distance from potentially dangerous equipment. Furthermore, there is no risk of damage to the systems or equipment after the thermal study.\nFor more information on thermal imaging and thermal image cameras contact Sentry Communications & Security at (866) 573-6879.","domain":"optical_engineering"}
{"url":"https://elite-fitness.org/answering-common-questions-lasik-surgery/","date":"2022-08-08T16:49:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570868.47/warc/CC-MAIN-20220808152744-20220808182744-00197.warc.gz","language_score":0.9643142223358154,"token_count":363,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__116551519","lang":"en","text":"Just a few decades ago, lasers were a scientific and technological breakthrough. Today, they have been developed and improved tremendously. Since lasers are so precise, accurate and can be so small, they are ideal for performing different kinds of surgery. Eye surgery, especially, has been greatly advanced thanks to lasers. You have probably heard of Lasik surgery and how it can restore your vision so that you never have to wear contacts or glasses again.\nHow Does Lasik Surgery Work?\nLasik surgery uses a tiny beam of ultraviolet light. This beam precisely and thoroughly scrapes off extremely small, almost microscopic, layers of cells from the cornea, which is the clear part of the eyeball. By doing this, the cornea is reshaped in exactly the manner required to restore your vision and allow you to see more clearly.\nPreparing For Lasik Surgery\nIf you want to get Lasik surgery, you need to ensure that you are a good candidate for this procedure by scheduling a consultation with an eye specialist. There are certain criteria you have to fill. Your eye specialist will let you know whether or not you are a good candidate and if you are, will determine exactly what needs to be done during the surgical procedure. You’ll also receive instructions on how to prepare for Lasik surgery.\nWhat To Expect From Lasik\nLasik surgery has developed to the point where blades are no longer needed to perform the procedure. This has made it safer and more comfortable than ever before. After you get Lasik surgery, your vision will be noticeably better, but you must let your eyes rest for the remainder of the day. You can go back to work and drive the day after the surgery, but ladies should wait a few days before wearing eye makeup.\nBe the first to like.","domain":"optical_engineering"}
{"url":"https://bookstore.dal.ca/Catalogue/shop/school-supplies/field-equipment/hand-lens","date":"2020-08-10T15:19:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439736057.87/warc/CC-MAIN-20200810145103-20200810175103-00536.warc.gz","language_score":0.938766360282898,"token_count":136,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__109485118","lang":"en","text":"Author/Colour: Edition/Size: Price: $41.50\nOn Order: 0\nThe BelOMO 10x triplet loupe is a viewing loupe of very high quality manufactured by BelOMO (also known as BelOMA) - the Belarusian Optical Mechanical Association. Triplet 10x is meant for viewing objects that are invisible or poorly distinguished to the naked eye.\nThe 10x magnifying loupe has three achromatic, colour correction, antireflection lenses that make it possible to see the image as precise and clear as in the original. Due to the presence of three lenses the magnifier is called a triplet.","domain":"optical_engineering"}
{"url":"https://ranchoelectrical.com/how-do-leds-work-and-how-will-they-save-you-money/","date":"2021-07-28T08:13:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153531.10/warc/CC-MAIN-20210728060744-20210728090744-00685.warc.gz","language_score":0.9283121824264526,"token_count":398,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__242548737","lang":"en","text":"At Rancho Electrical, a large number of the projects we complete involve installing LED lighting to replace older incandescent or fluorescent lighting systems. These projects often have the effect of increasing light levels, sometimes drastically, while still lowering energy costs for the client. So what makes LED lighting so special?\nThe first key to understanding LED lighting is right in their name: LEDs are light emitting diodes. A diode is an electronic component that conducts electricity in a single direction. When you connect a power source to a diode in the correct direction, electricity flows. If the power source is reversed, there will be no current.\nWhen electrons flow across any diode, they will release photons. In most diodes, these photons are low-powered, falling outside the visible spectrum, and absorbed readily by the materials that make up the diode.\nIn an LED, however, the diode is constructed to create a photons of a specific power level. This can range from infrared, on through the visible spectrum, and even into ultraviolet. Then, instead of absorbing the photons inside the diode itself, an LED is shaped so that the light is emitted outward, where it can be utilized.\nIn an incandescent light source, electricity is forced through a tungsten filament. Because of the low conductivity of tungsten, it heats up as the electrons flow through it, quickly getting hot enough to glow.\nIt’s that heat that makes incandescent lighting so inefficient. Instead of being used to create light, a lot of the electricity in a traditional light source is wasted through heat. LEDs don’t create almost any heat, on the other hand.\nConsider how much you could save if your business switched to LED lighting. Not only would energy costs go down dramatically, but your lighting would be virtually maintenance free for years. If you’re ready to make the switch, contact us at Rancho Electrical today.","domain":"optical_engineering"}
{"url":"https://wingniceblog.wordpress.com/2017/05/12/where-led-innovations-are-taking-everybody/","date":"2018-04-23T23:01:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946256.50/warc/CC-MAIN-20180423223408-20180424003408-00291.warc.gz","language_score":0.9531623721122742,"token_count":1094,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__233790295","lang":"en","text":"Samsung UN65JU7500 Curved The past decade has actually been monumental for light-emitting diodes (LEDs), and of course the years to come look even more promising. For the average consumer, this innovative technology has only recently been taken to light (as it were). Today, additionally LEDs in only every bit of electronic equipment on the market, however this technology is credited with the posssibility to avoid wasting life, literally — by saving energy through better performance and lower maintenance.\nThe now popular LED technology can trace its roots to more than 100 years ago, when British scientist Henry J. Round discovered that the junction of a new semiconductor produced light. After his discovery in 1907, various scientists sporadically tried to improve the semiconductor’s versatility and efficiency, however it wasn’t until 1962 that this first visible LED light was offered by Nick Holonyak Jr., an employee of General Electric Company. Since that time, researchers and scientists have also been looking to develop, improve, and expand LED technology.\nLED Right now\nLED lighting is using this world by storm just like a pioneer symbol of the “green” movement, and LEDs have bested the incandescent bulb by outstanding margins. Not only are LED lights physically brighter than conventional bulbs, they burn cooler and consume up to 90 percent less energy. They’re also used in a host of different products and technologies. Just for instance:\n— LEDs played a huge part in holiday celebrations this year, lighting up nationally-recognized Christmas trees plus the iconic Times Square New Year’s Eve Ball.\n— LED technology has made appearances among the Super Bowl, U2’s concert tour, and outer-space.\n— LED lighting revolutionized the humanities by illuminating theater stages, historic monuments, as well as having the movies. It even won an Emmy.\n— LED innovations remain to battle cancer and climate change.\nLED In the new tommorow\nBased upon past LED trends and markets, watch for these likely possibilities in the coming years:\n— Cheaper home LEDs. Europe has banned the sale of incandescent bulbs, and of course the America is set to comply with suit in 2012, which means product developers will be diligently fitting in with make LEDs more available to consumers.\n— LED ceilings and wallpaper. This innovation is in development now. As a substitute for having light fixtures, we’ll have entire walls and ceiling that produce light, starting huge new realms of possibilities for both exterior and interior lighting.\n— Custom LED lighting. In association with LED ceilings and walls, these innovations will certainly be controlled by be sure you display or switchboard or which could customize the apperiance, brightness, hue, temperature, together with other lighting properties.\nSamsung UN65JU7500 Curved\n— Simulated sunlight. At a later point in time, LEDs have the potential to virtually exchange the sun, recreating natural sunlight to assist treat conditions such as seasonal depression and other sun-related illness or disease.\nWhich simply means an LED TV is truly an LCD television which incorporates an additional technology. LEDs are light emitting diodes which you ll find are an efficient light source while previously other methods of illuminating the LCD screen have been which can include fluorescent tubes, now the LEDs are widely-used to ignite the LCD display.\nWhile fluorescent tubes provide light, they have a number of drawbacks. They use more space and are generally heavy in weight. Also they never provide sufficient color quality because of the fact that the blacks displayed commonly are not true blacks which certainly reduces the vibrancy among other colors. This is often basically why the LED technology arrived – in order that they could provide a lighting source that can show the purest blacks and whites.\nAt the present there are so many of LED TVs useful to the buyer. Part of them is back-lit model allowing the LCD display to be jacked up by back lighting through a number of LEDs placed behind the television panel. Another is the break through edge lit version which uses LEDs just like a light source positioned around the edges of one’s television screen. Using LEDs as taillights requirements large amount of space in the background videos set, taking the LED TV thicker sized. The sting lit LED display however, requires less back panel space and thus the designs are much slimmer and sleek.\nAnother useful feature of the edge lit LED television is the idea that it consumes less energy which is not only best for the business venture but additionally frees up toward the monthly electric bill. So the very first thing you will need to do when buying the LED TV will be to figure out no matter whether you want it back lit or edge lit, because the rear lit ones will surely be costlier to buy. You will also find various accessory options for the LED tv s.\nSamsung UN65JU7500 Curved The tv screen may be used as a type of interface for one’s laptop computer. This makes for a television set that could play the best items from your own computer which involves live streaming from any internet website and watching online movies. You may also watch your residence videos that have been saved toward the computer. LED tv setups also have a USB port that can easily be used to view the material on your USB flash drive and view movies, videos or pictures.","domain":"optical_engineering"}
{"url":"https://www.mobileworldlive.com/devices/lg-offers-snapshot-of-top-tier-smartphone-tech/","date":"2023-12-05T22:13:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00346.warc.gz","language_score":0.9310997724533081,"token_count":371,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__177513806","lang":"en","text":"Ahead of MWC19 Barcelona, LG Electronics began talking up the technology in its G8 ThinQ smartphone, including advanced imaging and audio capabilities.\nWorking with Infineon Technologies, LG installed a front-facing 3D Time of Flight (ToF) camera, a feature which has so far been used in some devices’ rear-facing cameras. It provides more accurate measurements of distance from the camera lens than the “complex algorithms” used by other 3D technologies and is said to work more efficiently in ambient light, reducing the workload on the processor and so reducing power consumption.\nThe company also highlighted fast response speeds for use in biometric authentication methods such as facial recognition. Because it is not affected by light from external sources, it also offers an “excellent recognition rate, both indoors and out”, making it ideal for augmented- and virtual-reality applications.\nChang Ma, head of product strategy at LG Mobile, said the technology “gives users a unique and secure verification system without sacrificing camera capabilities”.\nThe company said that with “more and more consumers using smartphones as their primary devices for watching movies, playing games and consuming music”, the demand for high-quality audio is higher than ever.\nDeveloped in-house, CSO uses the display as a diaphragm, vibrating the surface to produce sound with “impressive volume”. Because it uses the entire display, this improves clarity, making voices easier to understand and subtle music more noticeable.\nIn speakerphone mode, audio is delivered through the bottom speaker with “impressive bass”, while the stereo effect is achieved using the top part of the display.\nThe arrangement is also said to give the device a “clean, minimalist look”.","domain":"optical_engineering"}
{"url":"https://kind-noether-7b1563.netlify.app/project/obstacle-detection/","date":"2021-04-19T19:35:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038916163.70/warc/CC-MAIN-20210419173508-20210419203508-00530.warc.gz","language_score":0.9369504451751709,"token_count":295,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__71246749","lang":"en","text":"Previous research using eye-tracking with pedestrians confirmed that observing the path to look out for potential hazards and obstacles is a critical visual task. Detecting obstacles is harder to do at night due to reduced light levels restricting the visual information we receive. One of the essential purposes of road lighting for pedestrians is therefore to help us see potential obstacles in our path. My PhD and subsequent postdoctoral research looked at the task of detecting obstacles and how lighting influenced this task.\nIn a laboratory study, I used a physical pedestrian simulator to investigate the effect of illuminance and spectrum on the ability to detect an obstacle. This found that increasing illuminance above 2 lux had little effect on our ability to detect an obstacle. Light with a higher Scotopic / Photopic luminance ratio (generally containing more short-wavelength light) did improve detection ability but only at very low illuminance levels, below 0.6 lux.\nData from this obstacle detection study were used in further anlayses to estimate minimum illuminances required to detect an obstacle of a critical size. Analysis of eye-tracking videos with pedestrians in real-world outdoor settings suggested we tend to look at potential obstacles in the path ahead an average of 3.4 metres away. To see an obstacle of a critical threshold size (10 mm) at this distance, a minimum of up to 1 lux illuminance is required, depending on the spectrum of the light and the age of the observer.","domain":"optical_engineering"}
{"url":"https://www.sublivagroup.com/glasses/","date":"2023-12-04T19:51:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100534.18/warc/CC-MAIN-20231204182901-20231204212901-00067.warc.gz","language_score":0.9152182936668396,"token_count":269,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__192100895","lang":"en","text":"Welcome to Subliva Group – a leading high-quality glasses manufacturer, supplier, and factory. We take immense pride in introducing our premium range of glasses that are designed to enhance your vision and style. At Subliva Group, we understand the importance of clear and comfortable vision in your daily life. Our dedicated team of experts utilizes state-of-the-art technology and top-notch materials to craft glasses that offer exceptional visual clarity and durability. Whether you need prescription glasses, sunglasses, or specialized eyewear, we have got you covered. What sets our glasses apart is our unwavering commitment to quality. Each pair undergoes rigorous testing to ensure they meet our stringent standards before they reach our valued customers. Our glasses are not only built to withstand the test of time but also to provide optimal comfort, allowing you to wear them all day long without any discomfort. As a trusted manufacturer, supplier, and factory, Subliva Group offers a wide variety of styles, designs, and colors to suit every individual's needs and preferences. With our glasses, you can express your unique personality and fashion sense while enjoying a crystal-clear view. Choose Subliva Group for high-quality glasses that guarantee style, comfort, and exceptional optical performance. Experience the difference and see the world with clarity through our exceptional eyewear range.","domain":"optical_engineering"}
{"url":"http://01944455.com/Fujifilm-Fujinon-Super-EBC-XF-27mm-F28-Aspherical-264094951749.html","date":"2019-01-16T16:21:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583657555.87/warc/CC-MAIN-20190116154927-20190116180927-00131.warc.gz","language_score":0.7608367204666138,"token_count":407,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__125642388","lang":"en","text":"Ubicación del artículo:West Midlands,\nRealiza envíos a: Worldwide,\nNúmero de artículo:264094951749In Excellent condition throughout, this Fujifilm Fujinon Super EBC XF 27mm F2.8 Aspherical Lens is in full working order with no mechanical / optical faults / issues. The focusing ring is very smooth and easy to operate. The auto / manual focus facility is rapid throughout with no hunting or AF loss. The autofocus is very smooth and quick to perform. Exposure is accurate Optically, there are no scratches on the front / rear of the lens as well as no fungus / mould within the elements - this is a very clean lens throughout. Supplied with Front & Rear Lens Cap --------- Upon receipt of PayPal Payment, this will be sent out within 1 working day for rapid dispatch.---------- Thanks for looking. Any questions, please send via ebay messages and I will respond as quick as possible.Condition:Used, Condition:Full Working Order Throughout,, Model:Fuji film Fujinon Super EBC XF 27mm F2.8 Aspheric, Modified Item:No, Camera/Camcorder Fitting:Fujifilm X, Custom Bundle:No, Camera Type:Mirrorless, Compatible Brand:For Fujifilm, Focal Length:27mm, Maximum Aperture:F2.8, Series:Fujifilm XF, Type:Aspherical, MPN:Does Not Apply, Focal Length Type:Fixed/Prime, Focus Type:Auto & Manual, Brand:Fujifilm, Camera Technology:Digital, Non-Domestic Product:No, Mount:Fujifilm X\n01944455.com Insights para \"\nFujifilm Fujinon Super EBC XF 27mm F2.8 Aspherical Fuji Lens With Both Lens Caps","domain":"optical_engineering"}
{"url":"https://www.ivlogyt.com/rumors-apple-is-planning-to-released-apple-glass/","date":"2023-09-27T19:04:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510319.87/warc/CC-MAIN-20230927171156-20230927201156-00750.warc.gz","language_score":0.923723578453064,"token_count":693,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__77210552","lang":"en","text":"Apple is gearing up to release its first-ever AR smart glasses “Apple Glass”, it could be late 2021 or early 2022 according to rumors published by MacRumors.com. The Apple-exclusive AR lens project is all set to debut soon, the AR and VR industry has matured over the past few years. And Apple stepping in with a pair of Apple Glasses could be “The Next Big Thing”.\nThere is a rumor that Apple is working on a limited-edition “Steve Jobs Heritage” version of the smart glasses that are designed to look like the round, frameless glasses that Steve Jobs used to wear, but Bloomberg’s Mark Gurman has called this rumor “complete fiction”.\nApple has been working on VR and VR technologies for more than 10 years now, the company has worked on a secret research division of hundreds of employees to design Apple Next Big Thing. Apple could be called its AR smart glasses as “Apple Glass”, says rumors. Rumors also guessing the price of Apple Glasses will start at $499 with the option for prescription lenses at an extra cost.\nThere will be displays in both lenses that can be interacted with using gestures. An early prototype featured a LiDAR scanner similar to the iPad Pro 2020 variant and also a Wireless Charging. The prototype suggests that the material would be plastic, according to recent leaks. But according to Apple standards, it might use a metal frame instead of plastic material. Apple Glass will primarily take a display role offloading computing, networking, and positioning to the iPhone. This will allow Apple to reduce the weight and size of the glasses.\nThe glasses will rely on a paired iPhone, just like the original Apple Watch. LiDAR used to determine distance by measuring how long it takes light to reach an object and reflect. It’s an efficient way to get a much more accurate 3D representation of the scene in front of the camera, which is useful in computational photography and especially in augmented reality. Which eliminates the need for cameras in the smart glasses.\nARKit 4 helps in creating a new way to access the detailed depth information gathered by the LiDAR Scanner. Location Anchoring leverages the higher resolution data in Apple Maps to place AR experiences at a specific point in the world in Apple Glass. This feature will allow more immersive AR experiences and give the application a better understanding of the environment for object placement and occlusion.\nSome rumors also state that Apple glass will feature an 8K display for each eye, and Apple will automatically adjust for people with poor eyesight. Ming-Chi Kuo, an Apple analyst predicts that Apple Glass won’t have any kind of processor. He states that the first-gen Apple glasses will be heavily dependent on the iPhone, with the AR glasses essentially only providing the display.\nThe Apple glasses will run on a similar version of OS based on iOS, according to Bloomberg’s report. Or maybe Apple could name it the Glass OS to maintain similarity among their operating systems environments. Apple Glass will bring information from your iPhone to your face. With Apple’s integration, the glasses will be able to synchronize with a used iPhone to display things such as texts, emails, and maps over the user’s field of vision.\nApple will released its Apple Glasses in late 2021 or early 2022.","domain":"optical_engineering"}
{"url":"http://www.funny-potato.com/high-resolution-camera.html","date":"2021-09-19T20:08:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056900.32/warc/CC-MAIN-20210919190128-20210919220128-00692.warc.gz","language_score":0.9072790145874023,"token_count":99,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__7415171","lang":"en","text":"Cool! A digital camera that takes pictures of 5,5 terapixels, that is high resolution!\nOk, here is the explanation, for those who don't see the problem: Many digital cameras offer the possibility to take pictures of 5,5 megapixels, not 5,5 terapixels! Terapixels are 1 million times more pixels than megapixels. A very high quality digital camera then!\nBack to the main site of funny pictures, photos and videos!","domain":"optical_engineering"}
{"url":"https://www.binocularbuyingguide.net/hunting-binos/bushnell-green-roof-trophy-binoculars-10x42-review/","date":"2024-04-14T20:55:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.9/warc/CC-MAIN-20240414192536-20240414222536-00446.warc.gz","language_score":0.9544548392295837,"token_count":1507,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__191849396","lang":"en","text":"If you are in the market for hunting binoculars then we hope that you will find that this Bushnell Green Roof Trophy Binoculars 10×42 review will provide you with all of the key information that you need to decide whether they are right for you or not.\nIt can be really tough to find a hunting binocular that is tough enough for the job with quality optics which provide brightness and clarity without spending a lot of money. The Bushnell Green Roof Trophy Binoculars 10×42 certainly perform well and you should consider them seriously as your next set of hunting binoculars.\nBushnell have a very good reputation for producing some of the highest quality binoculars for hunters over the years. They have the toughness and durability that hunters demand as well as delivering high powered performance.\nThe 10 times 42 millimeter objective lens size and magnification factor has proved to be very popular and Bushnell fans all like the Michael Waddell Bone Collector edition on these fog proof and waterproof binoculars that have fast focus.\nMichael Waddell is a well known hunter who stars in the Outdoor Channel show “Bone Collector”. He has many fans and is a very experienced hunter who has given his name to these Bushnell Green binoculars.\nFeatures of the Bushnell Green Roof Trophy Binoculars 10×42\nThe optics on the Bushnell Green Roof Trophy Binoculars 10×42 are multi coated which helps to provide a very sharp image which is very bright. The magnification is ideal for providing high levels of clarity with very efficient transmission of light.\nThe focus is good too and delivers the kind of performance that need for hunting and viewing wildlife. You will be able to see clearly over long distances and moving objects are in sharp focus.\nA BAK4 roof prism system is used and the prisms are also multi coated. This leads to images that are very clear and bright so you will be able to focus in on all of the details. It doesn’t matter if wildlife is on the move as the optics of the Bushnell Green Roof Trophy Binoculars 10×42 always deliver sharp images.\nA lot of very expensive binoculars use the roof prism system as it provides a more “straight line” light travel experience than some porro systems do. The roof prisms are also more lightweight than the porro prisms so you are getting very high quality prisms here for the money.\nThe close focus distance on these binoculars is 8.2 feet and the field of view is an impressive 325 feet at 1000 yards. The eye relief is good at 15.2 millimeters and the exit pupil is 4.2 millimeters. These binoculars weigh just 25 ounces and the dimensions are 7 inches by 6 inches by 3 inches.\nThe Bushnell Green Roof Trophy Binoculars 10×42 has a center focusing wheel which enables you to focus your eyes with the optical plane and receive very sharp images. There is a diopter adjustment on one side of the focus wheel and this has a plus and minus sign either side of the zero position. You can remember your preferred settings for future use.\nErgonomics and Design\nThe Bushnell Green Roof Trophy Binoculars 10×42 are coated with an armor which is omnificent and consists of dura grip rubber. There is a soft touch thumb grip and overall the handling of these binoculars is very good.\nThe binoculars are both fog proof and water proof thanks to the nitrogen purged lenses and O ring seals that fit very well. You can use the binoculars without any difficulty in wet weather and also in locations with high humidity.\nThe eye lenses have a coating of rubber for additional comfort. The objective lenses have a handy flip cover and these binoculars come with a tripod adapter. Bushnell offer a lifetime warranty with these binoculars.\nBushnell Green Roof Trophy Binoculars 10×42 Pros\n- Ideal magnification and objective lens size for hunting\n- Impressive field of view\n- Bone Collector Edition approved by Michael Waddell\n- Very easy to use zoom feature which always delivers clear images\n- Good build quality and highly durable\n- Comfortable ergonomic design\n- Fog proof and water proof\nBushnell Green Roof Trophy Binoculars 10×42 Cons\n- Some people may find these binoculars a little bulky and heavy especially when used for long periods\n- Sometimes lens cover falls off\nCheck out the latest prices for the Bushnell Green Roof Trophy Binoculars 10×42\nThe view of the Customers\nThe bushnell green roof trophy binocular 10×42 is highly rated by the customers. They were satisfied with the functioning of this binocular. Below are some of the things mentioned by the customers.\nBetter than binoculars that cost twice the price– these binoculars performed better than those purchased before at over twice the price. The weight and size are good and the magnification power is just right.\nNo regrets buying these binoculars– they provide a really great view and everything is visible. In a brush and desert setting it can be hard to see wildlife but these made everything clear.\nCrystal clear optics– these are great binoculars to use and there is no color distortion or fuzziness. The fast focusing is very good and it locks in well. They are robust and well made which is evident when they are held. Well worth the money!\nNo fogging– Colorado in the winter was a good test for these binoculars. There was no fogging at any time despite the extreme weather conditions. Long distance viewing possible with the magnification power. These are really awesome binoculars at a great price.\nUsed these for whale watching– these are great binoculars for whale watching. The focus is good but not as accurate as with military glasses but this is not a problem.\nNo problems for glasses wearers– it is easy to use these binoculars with eye glasses and there are no problems like with other models when wearing glasses.\nComparable to higher spec binoculars– the brightness and clarity that these binoculars deliver is directly comparable to those that are in a much higher price bracket. Direct comparisons have been made to substantiate this claim.\nWorth more than the price– For users involved in hunting it really is rare to find a product like this that is worth more than the asking price. A clear image is established without a lot of turning of the focus wheel. The eye relief is very good and they are really great to hold.\nThey fit large hands– Customers with bigger built find this binocular fit really well in their large hands and the image is so clear. Really fast focus and good design.\nOur Verdict on the Bushnell Green Roof Trophy Binoculars 10×42\nIt is no surprise that these hunting binoculars have become best sellers. They are high quality and very durable offered at a low price. The clarity of the image produced by these binoculars is amazing which is due to the superior quality optics used.\nBushnell Green have taken care of the ergonomics well and these glasses are comfortable even after long periods of use. The armor provides a really nice grip and the eyecups are well cushioned. We highly recommend the Bushnell Green Roof Trophy Binoculars 10×42.","domain":"optical_engineering"}
{"url":"https://cdn.ggnome.com/doc/lensflare/","date":"2024-04-21T21:07:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817819.93/warc/CC-MAIN-20240421194551-20240421224551-00736.warc.gz","language_score":0.8660483360290527,"token_count":184,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__176909134","lang":"en","text":"A lens flare is the result of light scattering within the camera’s lens. The flare can present itself as haze or as a pattern of artifacts. Here, you can add this artifact to add greater depth and dimension to the image.\nEnter the Lens Flare mode via the Viewer Modes.\nDouble-click in the Viewer to add a Lens Flare to a light source. Once you do this you’ll see the Lens Flare icon and its properties will open. A red icon means the lens flare is active, while a blue icon means it is not active.\n✭ Copy and paste lens flares by right-clicking in the viewer with a lens flare active, and then choose Copy Active Media Element. Right-click anywhere in the panorama and select Paste Media Element to paste. You can also copy and paste lens flares in the List View panel.","domain":"optical_engineering"}
{"url":"https://staehleprecision.com/gauging","date":"2023-09-27T15:40:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510300.41/warc/CC-MAIN-20230927135227-20230927165227-00348.warc.gz","language_score":0.8200017213821411,"token_count":121,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__252127209","lang":"en","text":"We offer only the Finest in Machine Tool Measurement. We can provide you with Heidenhain and Acu-Rite Linear Scales, Rotary Encoders, and Digital Displays.\nUtilizing Heidenhain's Evaluation Electronics for Metrology, we offer the perfect solution for your hard gauging needs.\nAcu-Rite's Magnification Checker aids in the calibration of optical comparator and other inspection equipment. The \"Mag checker\" is backed by Acu-Rite's years of expertise in glass scale technology.","domain":"optical_engineering"}
{"url":"https://toptechpal.com/what-are-the-benefits-of-rear-view-mirror-dash-cam-with-backup-camera/","date":"2022-06-26T17:02:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103271763.15/warc/CC-MAIN-20220626161834-20220626191834-00597.warc.gz","language_score":0.9413243532180786,"token_count":692,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__147570885","lang":"en","text":"If your car does not have an LCD screen or a rearview camera, you can install a rearview mirror connected to a rearview camera. Some mirrors coupled to a camera are even multifunctional, allowing you to use various applications. We tell you everything about the rearview camera mirror in this article!\nRearview mirror reversing camera: characteristics\nThe reversing camera mirror is an accessory that can be installed on a vehicle in order to look directly into the interior mirror during reversing manoeuvres, rather than on a screen installed lower than the driver’s usual field of vision.\nMore precisely, it is a rear view mirror in which an LCD screen is integrated or an LCD screen in the form of a rearview mirror. In this case, it is mounted on a mirror frame and coupled to a reversing camera installed at the rear of the vehicle.\nIts characteristics are as follows:\nIt can be attached by clips to the already existing interior mirror, or replace it if it is a type of LCD mirror provided for this purpose, which can be glued to the windshield instead of the original model.\nIt works thanks to a WiFi transceiver.\nThe panoramic viewing angle in the rearview mirror is between 120 and 170°. Different coloured limits indicate to the driver the distance and the risk of collision with what is behind, the latter system being disengage able.\nThe reversing camera mirror can, using a memory card, record photos or videos taken by the camera.\nSome models can even replace the LCD screen of a touchscreen car radio. They offer the possibility of controlling the car radio, GPS, web navigation and many existing computer applications.\nThe reversing camera supplied with the mirror is installed on the rear license plate holder.\nThe device can also have a front camera and a buffer battery powered by a charger connected to the cigarette lighter or to a power outlet allowing it to have an independent power supply if it has a detection function of movements. This automatically records what passes in front of the objectives of the two cameras as well as during an impact while the vehicle is parked, starting or braking.\nReversing camera mirror operation\nThis device is powered by a cable and a plug for mains, cigarette lighter or USB DC 12 V for the car. When the reversing camera rearview mirror offers various functions and applications, they are operated by a touch pen.\nIt starts automatically when the car is in motion or permanent with the buffer battery when it exists and is connected.\nFeatures of the reversing camera mirror\nThe main advantages of this accessory are:\n- Allowing you to guide you in reverse by simply looking in your rearview mirror, with the display of colour guides on the screen. This saves you the trouble of physically twisting to see where you are going through your vehicle’s rear window or having to use the side mirrors on a utility vehicle.\n- The reversing camera mirror eliminates blind spots. It allows you to better see pedestrians and cyclists, or young children who can pass quickly behind your car without being able to see them without this accessory. He can therefore prevent you from hitting someone.\nThe comfort in manoeuvring offered by the reversing camera mirror means that you will not be able to do without it. If the system breaks down, or you use a car that is not equipped with it, you will lose your usual bearings and reflexes and will have to readjust to manoeuvring.","domain":"optical_engineering"}
{"url":"https://cgi.tutsplus.com/tutorials/create-a-3d-anaglyphic-render-in-maya-2012--cg-10701","date":"2021-09-22T14:17:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057366.40/warc/CC-MAIN-20210922132653-20210922162653-00134.warc.gz","language_score":0.9281377792358398,"token_count":661,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__229985143","lang":"en","text":"What is 3d-anaglyph? Anaglyph images are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different (usually chromatically opposite) colors, such as red and cyan. Images are made up of two color layers, superimposed, but offset with respect to each other to produce a depth effect. So in this tutorial we will learn how to make a realistic 3D-Anaglyphic render in Maya 2012.\nNote: click the 'Monitor' icon to view tutorial in full-screen HD.\nQuick Guide for 3D-Anaglyph\nWhat is 3d-anaglyph?\nAnaglyph images are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different (usually chromatically opposite) colors, such as red and cyan. Images are made up of two color layers, superimposed, but offset with respect to each other to produce a depth effect. Usually the main subject is in the center, while the foreground and background are shifted laterally in opposite directions. The picture contains two differently filtered colored images, one for each eye. When viewed through the \"color coded\" \"anaglyph glasses\", they reveal an integrated stereoscopic image. The visual cortex of the brain fuses this into perception of a three dimensional scene or composition.\nHow 3d-anaglyph works?\nViewing anaglyphs through appropriately colored glasses results in each eye seeing a slightly different picture. In a red-blue anaglyph, for instance, the eye covered by the red filter sees the red parts of the image as \"white\", and the blue parts as \"black\" (with the brain providing some adaption for color); the eye covered by the blue filter perceives the opposite effect. True white or true black areas are perceived the same by each eye. The brain blends together the image it receives from each eye, and interprets the differences as being the result of different distances. This creates a normal stereograph image without requiring the viewer to cross his or her eyes.\nHow to view a Stereoscopic Image?\nA pair of eyeglasses with two filters of the same colors, once used on the cameras (or now simulated by image processing software manipulations) is worn by the viewer. In the case above, the red lens over the left eye allows only the red part of the anaglyph image through to that eye, while the cyan (blue/green) lens over the right eye allows only the blue and green parts of the image through to that eye. Portions of the image that are red will appear dark through the cyan filter, while portions of colors composed only of green and blue will appear dark through the red filter. Each eye therefore sees only the perspective it is supposed to see.\nThat's all folks.\nSubscribe below and we’ll send you a weekly email summary of all new 3D & Motion Graphics tutorials. Never miss out on learning about the next big thing.Update me weekly\nEnvato Tuts+ tutorials are translated into other languages by our community members—you can be involved too!Translate this post","domain":"optical_engineering"}
{"url":"https://local.thestarphoenix.com/saskatoon-sk/conlon-eye-institute-306-986-2590","date":"2020-05-25T18:12:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347389309.17/warc/CC-MAIN-20200525161346-20200525191346-00482.warc.gz","language_score":0.982210099697113,"token_count":262,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__7731687","lang":"en","text":"Dr. M. Ronan Conlon was lucky enough to begin his career in ophthalmology in tandem with the pioneering of refractive eye surgery in Canada. To bring laser eye surgery to Canada, Dr. Conlon and his colleagues had to first bring a laser. In 1996, this meant travelling to Germany, where the laser technology had been developed, and bringing a laser home. Taking initiative meant laser eye surgery was actually brought to Canada before it was available in the United States. As Dr. Conlon’s career, and with it, the Conlon Eye Institute, has grown, so has the laser technology. Dr. Conlon advanced his surgical skills while performing LASIK in Saskatoon as it moved from its early stages to the advanced procedure we have today. Dr. Conlon also transitioned to treating cataract patients, moving from cataract removal, to cutting edge lenses for visual enhancement at the highest level. Dr. Conlon is grateful for his place in a field that is constantly revolutionizing, allowing him to continually grow as well. He is proud to see how far ophthalmology has come, and with over 20,000 refractive procedures under his belt, is excited for the Conlon Eye Institute to continue serving patients as we journey to wherever it goes next.","domain":"optical_engineering"}
{"url":"https://cuisinartcoffeemakers.com/olympus-m-zuiko-12-45mm-f-4-pro-review/","date":"2020-09-25T04:22:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400221980.49/warc/CC-MAIN-20200925021647-20200925051647-00157.warc.gz","language_score":0.92754065990448,"token_count":1610,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__232375606","lang":"en","text":"The Olympus M.Zuiko 12-45mm f/4 Pro holds an impressive distinction: it is the world’s smallest and most lightweight fixed aperture standard zoom lens (in equivalent 35mm terms, this is a 24-90mm lens).\nTo put that into perspective, its 254g weight is about the same as a large apple – and its compact 70mm length (and 63.4mm diameter) is actually smaller. So Olympus has achieved an incredible feat of a truly pocketable constant aperture standard zoom – and one that is even capable of macro photography.\nLike many standard zooms, the Olympus M.Zuiko 12-45mm f/4 Pro is the smaller and slower alternative to a faster lens in the family – in this case, the The Olympus M.Zuiko 12-40mm f/2.8 Pro. So this begs the question, which lens offers better bang for your buck – and which one is more suited to your specific shooting needs?\nMount: Micro Four Thirds\nLens construction: 12 elements in 9 groups\nAngle of view: 84° (wide) / 27° (telephoto)\nDiaphragm blades: 7\nMinimum aperture: f/22\nMinimum focusing distance: 0.12 m (wide) / 0.23 m (telephoto)\nMaximum magnification ratio: 0.25x (0.5x 35mm equivalent)\nFilter size: 58mm\nDimensions: 63.4 (dia) x 70mm (length)\nObviously the big selling point of the Olympus M.Zuiko 12-45mm f/4 Pro is its size. This feat of engineering is only possible on the Micro Four Thirds format, given the smaller sensor which requires smaller lenses; other APS-C or even full-frame camera bodies can be impressively small, the lenses remain significantly large, meaning that they don’t truly offer a complete compact package.\nIf you’re looking for a supremely small and light all-purpose, all-weather setup, mounting this lens on the Olympus OM-D E-M5 Mark III is a great combination that simply can’t be beaten on other camera systems.\nIts Pro designation means that not only does it feature superior all-metal construction, and remarkable durability for such a lightweight optic, it is fully weather sealed to withstand water, dirt and freezing temperatures – so you only have to stop shooting when you’re good and ready.\nThe 12-45mm f/4 Pro is also a capable macro shooter, able to focus as close as 12cm at the widest end and 23cm at the telephoto, and offering 0.25x maximum magnification (0.5x equivalent, in full-frame terms) across the zoom range.\nBUILD AND HANDLING\nAs noted, since it carries the Pro suffix, the 12-45mm f/4 is a brilliantly built lens, every bit as sturdy and substantial as its bigger f/2.8 brother. Despite its lightness, it feels remarkably solid and will withstand plenty of knocks when shooting in the field. As a Pro lens it is also weather sealed, and thus makes a perfect partner for bodies like the Olympus OM-D E-M1 Mark III or E-M5 Mark III.\nIn everything from looks to handling to build quality, it is incredibly similar to the 12-40mm f/2.8 Pro – almost as if the larger lens was simply shrunk in the wash. So if you’re familiar with its sibling, you’ll be right at home here.\nThere are, however, some distinct differences in functionality. The biggest difference is that the 12-45mm f/4 Pro doesn’t possess the manual focus clutch (and, thus, nor the distance gauge), so you cannot quickly ‘pop’ it into manual focus on the fly. Likewise it omits the L-Fn function button, so it’s a very straightforward lens to operate – though one that is, arguably, lacking the inputs required of a pro optic.\nOlympus wasn’t kidding when it said this lens is sharp across the entire zoom range; we’ve used sharper Oly glass, certainly, but performance across this range is impressive indeed – especially when shooting macro. Its autofocus is fast and accurate, too, and in all respects this is an excellent performer within its capabilities. It’s very hard to fault the 12-45mm f/4 Pro for what it does.\nHowever, it isn’t quite so hard to fault the 12-45mm f/4 Pro for what it doesn’t. That f/4 aperture might keep the lens nice and light, but it does rather restrict your ability to take pristine shots in subpar light. For their many advantages, Micro Four Thirds sensors still aren’t at their best when ISOs are pushed; while the E-M5 Mark III and E-M1 Mark III can tolerate higher sensitivities much better than their predecessors, this can still lead to muddy images on the older Mark IIs or the Olympus OM-D E-M10 Mark III.\nIf you usually photograph somewhere with abundant natural light, or if you shoot in a studio or mobile setup with supplemental light, this won’t be a problem. However, a standard zoom is intended as a walkabout lens – which means that, sooner or later, you’ll need to start stretching your shutter speed.\nOlympus’ rock-solid in-body image stabilization does a great job of facilitating this, though an f/4 lens would certainly have benefitted from the Sync IS technology (which significantly amplifies the in-body image stabilization of Olympus bodies) found in other Pro lenses. Of course, if you’re a landscape photographer or a shooter of static scenes using a tripod, this point is moot.\nThe f/4 aperture does mean that you are limited in the achievable shallowness of depth of field. Micro Four Thirds’ 2x crop factor effectively turns that f/4 into an f/8, in 35mm terms, meaning that you won’t be able to achieve much background blur even shooting at the 90mm equivalent telephoto extreme. That said, the bokeh rendition is very pleasing.\nConversely, that f/4 aperture can also work to your advantage. That same crop factor actually makes this the street photography lens that Weegee dreamed of; you still have the benefit of the f/4 aperture in terms of the amount of light gathered, but you can also exploit the equivalent “f/8 and be there” depth of field – making this a formidable street shooter, under appropriate conditions.\nLikewise, the increased depth of field also comes into its own for macro photography. While the dedicated Olympus 60mm f/2.8 Macro is superior in this regard, the 12-45mm f/4 Pro produces very pleasing photographs – and the effective f/8 aperture makes working with small and close subjects much more convenient. Combined with the Focus Stacking or Focus Bracketing on Olympus bodies, this gives you a marvelous light macro imaging setup.\nIn terms of video, 12-45mm f/4 Pro performs much like the 12-40mm f/2.8 Pro; its autofocus is fast and quiet, with the constant aperture enabling you to push in and out without worrying about changes to exposure. The fact that it’s so lightweight, combined with greater ISO leeway when shooting video, makes it a versatile run-and-gun lens – particularly with the E-M1 Mark III and E-M5 Mark III, both of which features superior low light sensitivity and aggressive phase detect.","domain":"optical_engineering"}
{"url":"https://digitalworlds.wordpress.com/2016/09/15/using-cameras-to-capture-objects-as-well-as-images/","date":"2017-03-28T15:56:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189802.18/warc/CC-MAIN-20170322212949-00092-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9139242768287659,"token_count":1091,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__319627917","lang":"en","text":"In The Photorealistic Effect… we saw how textures from photos could be overlaid onto 3D digital models as well as how digital models could be animated by human puppeteers: using motion capture to track the movement of articulation points on the human actor, this information could then be used to actuate similarly located points on the digital character mesh; and in 3D Models from Photos, we saw how textured 3D models could be “extruded” from single photograph by associating points on them with a mesh and then deforming the mesh in 3D space. In this post, we’ll explore further how the digital models themselves can be captured by scanning actual physical objects as well as by constructing models from photographic imagery.\nWe have already seen how markerless motion capture can be used to capture the motion of actors and objects in the real world in real time, and how video compositing techniques can be used to change the pictorial content of a digitally captured visual scene. But we can also use reality capture technologies to scan physical world objects, or otherwise generate three dimensional digital models of them.\nGenerating 3D Models from Photos\nOne way of generating a three dimensional model is to take a basis three dimensional mesh model and map it onto appropriate points in a photograph.\nThe following example shows an application called Faceworx in which textures from a front facing portrait and a side facing portrait are mapped onto a morphable mesh. The Smoothie-3d application described in 3D Models from Photos uses a related approach.\n3D Models from Multiple Photos\nAnother way in which photographic imagery can be used to generate 3D models is to use techniques from photogrammetry, defined by Wikipedia as “the science of making measurements from photographs, especially for recovering the exact positions of surface points”. By using taking several photographs of the same object and identifying the same features in each of them, and then align the photographs, using the differential distances between features to model the three-dimensional character of the original objects.\nDO: read the description of how the PhotoModeler application works: PhotoModeler – how it works. Similar mathematical techniques (triangulation and trilateration) can also be used to calculate distances in a wide variety of other contexts, such as finding the location of a mobile phone based on the signal strengths of three or more cell towers with known locations.\nIn the case of Intel RealSense devices, three separate camera components work together to capture the imagery (a traditional optical camera) and the distance to objects in the field of view (an infra-red camera and a small infra-red laser projector).\nWith their ability to capture distance-to-object measures as well as imagery, depth perceiving cameras represent an enabling technology that opens up a range of possibilities for application developers. For example, itseez3d is a tablet based application that works with the Structure Sensor to provide a simple 3D scanner application that can capture a 3D scan of a physical object as both a digital model and a corresponding texture.\nDepth Perceiving Cameras and Markerless mocap\nDepth perceiving cameras can also be used to capture facial models, as the FaceShift markerless motion capture studio shows.\nActivity: according to the FAQ for the FaceShift Studio application shown in the video below, what cameras can be used to provide inputs to the FaceShift application?\nExercise: try to find one or two recent examples of augmented or mixed reality applications that make use of depth sensitive cameras and share links to them in the comments below. To what extent do the examples require the availability of the depth information in order for them to work?\nInteractive Dynamic Video\nAnother approach to use video captures to create interactive models is a new technique developed by researchers Abe Davis, Justin G. Chen, and Fredo Durand at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) referred to as interactive dynamic video. In this technique, or few seconds (or minutes) of video are analysed to study the way a foreground object vibrates naturally, or when gently perturbed.\nRather than extracting a 3-dimensional model of the perturbed object, and then rendering that as a digital object, the object in the interactive is perturbed by constructing a “pyramid” mesh over the pixels on the video image itself (Davis, A., Chen, J.G. and Durand, F., 2015. Image-space modal bases for plausible manipulation of objects in video. ACM Transactions on Graphics (TOG), 34(6), p.239). That is, there is no “freestanding” 3D model of the object that can be perturbed. Instead, it exists as a dynamic, interactive model within the visual scene within which it is situated. (For a full list of related papers, see the Interactive Dynamic Video website.)\nSAQ: to what extent, if any, is interactive dynamic video an example of an augmented reality technique? Explain your reasoning.\nAdding this technique to our toolbox, along with the ability to generate simple videos from still photographs as described in Hyper-reality Offline – Creating Videos from Photos, we see how it is increasingly possibly to bring imagery alive simply through the manipulation of pixels, mapped as textures onto underlying structural meshes.","domain":"optical_engineering"}
{"url":"http://kings.myicandy.co.uk/lenses/","date":"2022-05-17T15:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662517485.8/warc/CC-MAIN-20220517130706-20220517160706-00649.warc.gz","language_score":0.9492514133453369,"token_count":587,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__217185078","lang":"en","text":"We are a KODAK Lens Vision Centre, offering you unbeatable quality and value for money.\nChoosing your new frames is often the most exciting aspect of visiting the opticians. However, while the frames you choose are important, the lenses you put in them are even more so, they’re the part that will improve your vision after all.\nAt Kings Opticians we have been chosen by KODAK Lens to be one of their lens experts.\nThis world renowned brand offers some of the best optical lenses available with unbeatable quality. We have expert knowledge of their products and are able to bespoke KODAK Unique lenses to provide the best vision correction available. Some of their lens coatings even come with a two year anti-scratch guarantee, that’s how confident they are of their products, with a no-quibble exchange policy.\nWith help from our lens specialists you can find the lenses to best suit your needs and lifestyle. Each member of our team regularly attends staff training to keep up-to-date with lens technology and how they will work in real life for our patients.\nWe take the time to listen and only recommend lenses that will benefit you.\nThen when you come to collect your glasses we make sure that you’re happy with your glasses and your vision, making any adjustments that may be required and be assured that we are always there for any queries and aftercare no matter what they are or when they happen.\nSome of the lenses we offer include:\nWhen our eyes are unable to focus between distance and near vision an all vision (varifocal) lens enables us to claim back some of the focussing power we have lost by adapting your vision with a lens prescription. These lenses work at multiple distances, providing a seamless visual experience.\nTransition lenses will save you the hassle if you’re finding you don’t want to switch your glasses to sunglasses when you step outside. These specialist lenses darken according to the light/ UV they are exposed to, leaving you with clear specs indoors and sunglasses when enjoying the sunshine.\nPolarised lenses are designed to combat glare. Whilst spending time outdoors you’ve no doubt experienced glare, such as off the surface of a lake whilst fishing or off a wet road in the morningwhich then causes discomfort in your vision. These lenses allow you to see more comfortably as well as prevent conditions such as visual stress and tired eyes\nBlue control lenses are recommended for those who spend lots of time in front of a computer screen. These lenses are designed to reduce the amount of blue light that is emitted from screens from entering the eyes which may lead to eye strain and headaches.\nBook your appointment\nby phone, email or pop in to our practices\nCotteridge 0121 486 2404\nMaypole 0121 474 4748","domain":"optical_engineering"}
{"url":"http://ifhomeworkblfl.gloriajohnson.us/gain-equalization-of-erbium-doped-fibre.html","date":"2018-08-18T04:22:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213286.48/warc/CC-MAIN-20180818040558-20180818060558-00132.warc.gz","language_score":0.8778784275054932,"token_count":876,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__167427086","lang":"en","text":"Module 15 : erbium doped fiber amplifiers (edfa) gain erbium doped fiber earth ions implanted in the core of the optical fiber erbium is the preferred rare. Azimuthal dependence of modal gain and its impact on gain equalization in multimode erbium-doped fiber amplifiers. Erbium-doped fiber amplifiers are fiber amplifiers based on erbium (see also figure 1 in the article on erbium-doped gain media) (→ gain equalization). Introduction to optical amplifiers 4/17 a raman amplifier is distributed over a long span of optical fiber the gain for an erbium-doped fiber amplifier. Gain flattening and noise figure analysis dual stage single mode polarization maintaining bowtie erbium doped fiber with equalization filter, a gain. An erbium doped fiber that enables dynamic adjustment of the pump laser power for performing gain equalization across one or more wavelengths in response.\nA new design for a gain flattened erbium doped fiber amplifier s vikrama uniformity of gain involves two aspects, namely gain equalization and gain flattening. The erbium doped amplifier is a high gain amplifier noise the principal source of noise in dfas is amplified spontaneous the erbium-doped fiber amplifier. Gain flattening of erbium doped fibre amplifier using leaky optical fibre design as an optical filter to achieve gain equalization in erbium-doped fibre. 19 october 2001 flexural waves on fiber and fiber bragg gratings for wdm switching and gain equalization of erbium-doped fiber amplifiers. Uniformity of gain involves two aspects, gain equalization and gain flattening uncluttered gain roll out in erbium doped fiber amplifier. Of few-mode erbium doped fiber amplifier for modal and spectral gain equalization guillaume le cocq, yves quiquempois, and laurent bigot.\nDesign of a robust thin-film interference filter for erbium-doped fiber amplifier gain equalization pierre g verly. Edfa (erbium doped fiber amplifier) (see also figure 1 in the article on erbium-doped gain media) (→ gain equalization).\nGain equalization for erbium-doped fiber amplifiers by the synthesis of a long-period fiber grating. Edfa stands for erbium-doped fiber amplifier the bayspec’s edfa series products are mainly for metro applications is the non-flatness of the gain of an edfa. Request (pdf) | gain equalization me | we show experimental performance comparison of different equalization methods in erbium-doped optical amplifiers based on.\nPositions, is proposed for flattening the gain spectrum of an erbium-doped fibre amplifier a ‘multiwavelength fiber-amplifier cascades with equalization. Latest results and future perspectives on few-mode work on few-mode erbium-doped fiber amplifiers and so as to favor gain equalization of a. Gain flattened erbium-doped fiber amplifier using simple equalizing film gain control in erbium-doped fiber amplifiers by lasing at 1480nm with photo induced. Journal of lightwave technology, vol 32, no 11, june 1, 2014 2133 adaptive modal gain equalization techniques in multi-mode erbium-doped fiber amplifiers.\nMethod and apparatus for a dynamic gain equalizer for an erbium doped fiber amplifier. We show experimental performance comparison of different equalization methods in erbium-doped optical amplifiers based on silica and zblan host materials. A simple scheme using a piece of sio2with an equalizing film platted on one side to get flattened gain gain flattened erbium-doped fiber equalization scheme.\nGain spectrum equalization of all-optical gain-clamped erbium-doped fiber amplifier. Student laboratory experiments on erbium doped laser educator kit which enables students to experimentally investigate the gain and erbium doped fiber.","domain":"optical_engineering"}
{"url":"https://anteral.com/en/products/THz-technologies/field-polarizers","date":"2020-02-27T01:42:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146643.49/warc/CC-MAIN-20200227002351-20200227032351-00038.warc.gz","language_score":0.8068900108337402,"token_count":332,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__8196851","lang":"en","text":"Anteral offers polarizers that operate at MmW and THz frequencies with low transmission loss and high parallel isolation. Two different models are in stock, both of them are mounted in rotating frames with angular scale and clear apertures of 50 mm and 25 mm.\nAnteral Wire Grid Polarizers consist of a simple pattern Cr-Cu-Au micro grid strip-array. This micro grid array is patterned following a photolithograpy process on a very thin (100 µm), ultra-low loss and flexible substrate for THz frequencies with low dielectric constant. The electric field is transmitted when polarized perpendicularly and reflected when polarized parallel to the grid array.\nThese polarizers can be used in MmW and THz systems in order to enhance the polarization sensitivity, beam splitting and generation of circular polarization.\n|Model||Gap Width [µm]||Strip Width [µm]||Clear Aperture [mm]||Layers||Transmission Loss* [dB]||Parallel Isolation (Typical)* [dB]||Frequency Band [THz]|\n|WGP-25-40||5||10||23.9||1||< 1.0||> 40||0 – 2|\n|FWGP-50-40||5||10||48.3||1||< 1.0||> 40||0 – 2|\n* Measured at WR2.2 frequency band. Further information available in the datasheets.\nDon't hesitate to contact us regarding polarizers of different sizes or with special requirements.","domain":"optical_engineering"}
{"url":"http://www.anatomy.vcu.edu/microscopy/microscopy2/afmspm/index.html","date":"2014-07-22T13:23:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-23/segments/1405997858892.28/warc/CC-MAIN-20140722025738-00140-ip-10-33-131-23.ec2.internal.warc.gz","language_score":0.825657069683075,"token_count":155,"dump":"CC-MAIN-2014-23","global_id":"webtext-fineweb__CC-MAIN-2014-23__0__185541813","lang":"en","text":"Atomic Force/Scanning Probe Microscope (AFM/SPM)\nThe facility is equipped with a Bruker Catalyst Atomic Force/Scanning Probe Microscope for the high-resolution study of molecules in situ. The system works in both the contact and tapping modes. The AFM/SPM resides on a Zeiss AxioObserver Z1 inverted microscope stand equipped with fluorescence optics (DAPI, GFP, rhodamine), an Exfo X-cite fluorescence illumination system and an AxioCam MRm CCD camera for the concurrent imaging of fluorescent signals. A heater/perfusion chamber is available to permit live-cell imaging. The entire system is housed within a TMC Acoustic Vibration Isolation System.","domain":"optical_engineering"}
{"url":"https://sahyadrimedia.com/science-technology/new-launch/new-polymer-materials-make-fabricating-optical-interconnects-easier/","date":"2022-05-21T21:15:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662541747.38/warc/CC-MAIN-20220521205757-20220521235757-00596.warc.gz","language_score":0.8950205445289612,"token_count":971,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__239682260","lang":"en","text":"Researchers have developed new polymer supplies that are perfect for making the optical hyperlinks essential to attach chip-based photonic elements with board-level circuits or optical fibers. The polymers can be utilized to simply create interconnects between photonic chips and optical printed circuit boards, the light-based equal of digital printed circuit boards.\n“These new supplies and the processes they permit might result in highly effective new photonic modules primarily based on,” mentioned analysis workforce chief Robert Norwood from the College of Arizona. “They is also helpful for or making holographic shows for augmented and digital actuality purposes.\nSilicon photonics expertise permits light-based elements to be built-in onto a tiny chip. Though most of the fundamental constructing blocks of silicon photonic gadgets have been demonstrated, higher strategies are wanted to manufacture the optical connections that hyperlink these elements collectively to make extra advanced methods.\nWithin the journal Optical Supplies Specific, the researchers report newsupplies that function a that may be adjusted with ultraviolet (UV) gentle and low optical losses. These supplies permit a single-mode optical interconnect to be printed straight right into a dry movie materials utilizing a low price, excessive throughput lithography system that’s appropriate with the CMOS manufacturing methods used to make chip-based .\n“This expertise makes it extra sensible to manufacture optical interconnects, which can be utilized to make the Web—particularly the info facilities that make it run—extra environment friendly,” mentioned Norwood. “In comparison with their digital counterparts, optical interconnects can improve information throughput whereas additionally producing much less warmth. This reduces energy consumption and cooling necessities.”\nChanging wires with gentle\nThe analysis expands on a vinylthiophenol polymer materials system often called S-BOC that the investigators developed beforehand. This materials has a refractive index that may be modified utilizing UV illumination. Within the new work, the researchers partially fluorinated S-BOC to enhance its gentle effectivity. The brand new materials system, known as FS-BOC, reveals decrease optical propagation losses than many different optical interconnect supplies.\n“With this materials we will use a course of that we name SmartPrint to straight write optical interconnections between completely different optical printed circuit board parts, reminiscent of ion-exchange (IOX) glass waveguides supplied by our collaborator Lars Brusberg from Corning Integrated,” mentioned Norwood.\nTo carry out the SmartPrint course of, a FS-BOC movie is utilized on to a photonic part. No mechanical alignment is required as a result of the optical interconnect is made utilizing a maskless lithography system that calculates the place the interconnect is required by wanting on the elements after which writing the optical interconnect into the polymer utilizing photoexposure. No further processing is critical aside from briefly heating the polymer movie to 90 °C. As a result of the fabrication strategy is maskless, writing patterns could be modified with out making a brand new photomask.\nMaking a connection\nTo exhibit the, the researchers deposited them straight onto ion-exchange glass waveguide arrays, that are generally used for built-in photonic gadgets. They then printed the coupling options wanted to permit gentle to journey out of 1 IOX waveguide, propagate into the newly fabricated polymer interconnect, after which enter a second IOX waveguide adjoining to the preliminary IOX waveguide.\nIn accordance with the researchers, the polymer optical interconnects labored properly and confirmed low propagation and coupling losses, which suggests little or no gentle was misplaced because it traveled throughout the interconnect or between it and the opposite elements.\nThe researchers at the moment are working to enhance the fabric’s refractive index distinction and efficiency at excessive temperatures. “The next refractive index distinction would make the fabric extra tolerant to manufacturing variations whereas excessive temperature efficiency is probably going wanted for the interconnect to face up to solder reflow processes, which happen above 200 °C,” mentioned Norwood.\nJulie I. Frish et al, Speedy photolithographic fabrication of excessive density optical interconnects utilizing refractive index distinction polymers, Optical Supplies Specific (2022).\nNew polymer supplies make fabricating optical interconnects simpler (2022, April 13)\nretrieved 13 April 2022\nThis doc is topic to copyright. Aside from any honest dealing for the aim of personal research or analysis, no\nhalf could also be reproduced with out the written permission. The content material is supplied for info functions solely.","domain":"optical_engineering"}
{"url":"http://www.asseenontvofficialsite.com/Eagle-Eyes-Sunglasses-s/29.htm","date":"2016-05-05T04:45:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-18/segments/1461860125897.19/warc/CC-MAIN-20160428161525-00025-ip-10-239-7-51.ec2.internal.warc.gz","language_score":0.804260790348053,"token_count":191,"dump":"CC-MAIN-2016-18","global_id":"webtext-fineweb__CC-MAIN-2016-18__0__156199930","lang":"en","text":"Blocks 100% of Harmful Blue, Violet & UltraViolet Light Rays at 475nm\nAllows Vision-Enhancing Green, Yellow, Orange & Red Light Spectrum in\nUnparalleled Visual Clarity, Contrast and Definition.\nPerfect for Driving, Golf and everyday use.\nHigh Performance Sunglasses - Don't Settle For Less!\nAll Glasses Come W/Hard and Soft Cases\nPlease Allow up to 2 Weeks for Shipping Due to High Demand\nDeveloped by NASA scientists, Eagle Eyes® Polarized Sunglasses\nimprove your night and distance vision, enhance your perception and\nEagle Eyes sight-saving, triple lens filter blocks 99% of damaging\nultraviolet rays while dramatically reducing glare and\nYou'll be able to see better in the sun, smog, snow\nAlso helps prevent cornea and\nTrusted by law enforcement and military\nprofessionals, now you can use them to see better year-round.","domain":"optical_engineering"}
{"url":"https://www.tvceyes.com/office-technology/index.html","date":"2019-11-14T03:05:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496667945.28/warc/CC-MAIN-20191114030315-20191114054315-00281.warc.gz","language_score":0.8986597657203674,"token_count":1242,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__2649537","lang":"en","text":"Experience the exam of the future. Step into 21st century eye care with some of the most technological advanced eye care offices in San Diego. Offering cutting edge technology, highly trained doctors and an expanded experience providing you with your best vision possible.\nTotal Vision Care regularly invests in state-of-the-art instruments, learn more about some of our technology below and the benefits it brings to our patients.\ni.Profiler ® plus– Objective Refraction and Corneal Topography\nThe i.Profiler® plus is the 4-in-1 system with ocular wavefront aberrometer, autorefractometer, ATLAS corneal topographer and keratometer. The fully automated measurement creates an optical 'fingerprint' of your eye and enables all measurements of both eyes including detection of aberrations in approximately 60 seconds.\nZEISS i.Scription – Wavefront Abberometry\nEvery eye is as unique as a human fingerprint. With i.Profilerplus® by ZEISS more than 2,500 reference points within your eye are examined to produce an extremely detailed vision profile. Unlike traditional exams, varying light conditions are also taken into account to provide customized visionâboth day and night. This comprehensive information is used to create a refined prescription or i.Scription®, that perfectly matches your unique vision profile. The resulting eyeglass lenses are produced to an accuracy far higher than seen in traditional eyeglass lenses and are personalized especially for your unique vision needs.\nAs a result, vision problems, such as blurry vision, halo effects, and visual discomfort can be recognized and improved. Eyeglass lenses with i.Scription technology can improve color and contrast, as well as vision at night and in low-lightâgiving you your best vision possible.\nZEISS precision lenses with i.Scription technology for better vision\nBetter Night/Low-light Vision. Looking directly at a light source at night, such as car lights, results in glare and halo effects. i.Scription technology by ZEISS reduces image noise.\nBetter Color Vision. i.Scription technology by ZEISS adds brilliance to your life and lets you see colors as they really are: bright and more intense.\nBetter Visual Contrast. Seeing contrast, such as white letters on a black background is especially challenging for the eyes. i.Scription technology by ZEISS sharpens contrast.\nZEISS i.Terminal – Centration Measurement System\nProper lens placement within your chosen frames is as important as an accurate prescription. Proper lens positioning minimizes headaches, incorrect body posture, and eye strain. Many details need to be taken into account, such as the distance between the eyes and pupils, the proportions of the face, the tilt and wrap of the frames, and even posture, to accurately position the lenses within the frames. Without these measurements, up to 40% of valuable visual acuity can be lost. This is important for single vision lenses and especially important for progressive lenses.\nWith the i.Terminal 2 by ZEISS, all of the necessary measurements are captures in only 60 secondsâto a precision of 1/10th of a millimeter–to create lenses made for your unique features.\nLenses that are precisely personalized for your face, frame, and prescription will provide you with:\n- Better fitting lenses\n- Optimum vision\n- Reduced eye strain\nHumphrey® Matrix – Visual Field Analyzer\nThe Humphrey Matrix represents the latest breakthrough for early visual field loss detection testing. It combines the capability to detect glaucoma early and accurately with tools for long-term management and detect other eye diseases. It also enhances the ability to conduct a thorough visual field evaluation and assess treatment alternatives.\nCIRRUS Photo 600 Instrument - Fundus Imaging and Optical Coherence Tomography(OCT)\nCIRRUS photo delivers combined fundus and OCT reports that enable quick assessments for a wide variety of retina and posterior segment disorders. Retinal imaging and image analysis is important as many eye diseases as well as systemic diseases manifest themselves in the retina. These might include age-related macular degeneration, diabetic retinopathy and glaucoma.\nVisuplan (NCT) – Non-contact Tonometer\nA tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). The measurement of IOP is part of a professional glaucoma evaluation and with the Zeiss Visuplan it is fast and very comfortable for our patients to do this test. Glaucoma is an eye disease that can cause blindness by damaging the nerve in the back of the eye.\nSlit Lamp – Biomicroscope\nFrom daily routine to specialized examinations it allows the doctor to see areas of the front of the eye, including eyelids, conjunctiva, iris, lens, sclera, cornea, retina and optic nerve. It helps in diagnosing items such as macular degeneration, detached retina, cataracts and injury to the cornea. Fun Fact- Carl Zeiss developed the first slit lamp back in 1911 together with Swedish ophthalmologist and Nobel laureate Allvar Gullstrand.\nVisulens 500 – Automated Lensmeter\nThis verifies the correct prescription in a pair of eyeglasses to properly orient and mark uncut lenses, and to confirm the correct mounting of lenses in spectacle frames. It also can measure nearsighted and stigmatism in your eyewear and helps to determine if there has been changes in sight.\nVisuphor 500 & Visuscreen 100 – Automated Subjective Refraction\nOptimal visual outcomes in patients requires careful measurement of subjective and objective refractive error. The ZEISS VISUSCREEN 500 with Polatest technology comes with a variety of vision tests to perform monocular and binocular testing with different test charts, as well as special tests for children. It allows for easier visual acuity tests and allows the doctor to learn more about the interaction between both eyes.","domain":"optical_engineering"}
{"url":"https://sxgkr.com/elevating-experiences-large-format-laser-cutting-in-retail-design/","date":"2024-04-15T12:20:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816977.38/warc/CC-MAIN-20240415111434-20240415141434-00701.warc.gz","language_score":0.9301334619522095,"token_count":881,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101557797","lang":"en","text":"The accuracy attained with huge style laser cutting is an outcome of the focused and concentrated beam that the laser produces. This high-energy beam of light is managed by computer laser cutting system system mathematical control (CNC) systems, making sure thorough precision in every cut. The degree of information that can be attained is unequaled, making it an excellent option for sectors where accuracy is non-negotiable.\nIn the world of commercial production, huge layout laser cutting has actually considerably affected manufacturing performance. The non-contact nature of laser reducing gets rid of the demand for device adjustments, minimizing downtime and enhancing general throughput. This performance is even more boosted by the capacity of lasers to reduce several items at the same time, maximizing the manufacturing procedure and lessening product waste.\nAmong the key benefits of huge style laser cutting is its capacity to collaborate with a varied variety of products. Whether it’s steels like stainless-steel and light weight aluminum, or non-metals such as acrylic, timber, or plastics, the laser’s convenience permits a wide range of applications. This flexibility has actually made it a favored option for complex layouts, great outlining, and intricate geometries.\nWhile huge style laser reducing excels in accuracy and effectiveness, it is not without its obstacles. In addition, the selection of help gases, such as nitrogen or oxygen, can affect the high quality of the cut and need to be customized to the particular product being refined.\nA vital factor to consider in opening the complete capacity of big layout laser cutting is recognizing the array of laser resources readily available. Carbon dioxide lasers, which run at a longer wavelength, are appropriate for reducing non-metallic products.\nAt its core, big style laser reducing includes making use of high-powered lasers to specifically reduce or etch products. Unlike typical techniques, such as mechanical cutting or sawing, laser reducing deals unrivaled accuracy and flexibility. This innovation has actually discovered its specific niche in a variety of markets, from aerospace and auto to signs and building layout.\nUpkeep is one more important facet of making certain the long life and efficiency of big style laser reducing systems. Routine cleansing and calibration of optics, mirrors, and lenses are vital for protecting the precision of the laser beam of light. Carrying out an aggressive upkeep routine can avoid downtime and guarantee regular, high-grade cuts over the long-term.\nOne more element to be conscious of is the focal size of the laser lens. The focal size identifies the dimension of the laser beam of light and, as a result, the degree of information in the cut. Various focal sizes appropriate for various applications, with much shorter focal sizes supplying finer information and longer focal sizes permitting much deeper cuts.\nAlong with product factors to consider, the selection of laser power plays an essential function in big style laser cutting. Greater electrical power lasers can puncturing thicker products at faster rates, while reduced electrical power lasers use raised accuracy for thinner products. Striking the best equilibrium in between power and rate is important for attaining the wanted result in any kind of laser reducing application.\nAt its core, huge layout laser reducing entails the usage of high-powered lasers to specifically reduce or inscribe products. The accuracy accomplished via huge layout laser cutting is an outcome of the focused and concentrated beam of light of light that the laser produces. An essential factor to consider in opening the complete capacity of huge layout laser cutting is comprehending the variety of laser resources offered. In enhancement to product factors to consider, the selection of laser power plays an essential duty in huge layout laser cutting. Greater power level lasers are qualified of reducing via thicker products at faster rates, while reduced electrical power lasers provide enhanced accuracy for thinner products.\nHuge style laser reducing stands at the center of accuracy production, providing unparalleled precision and flexibility. As innovation proceeds to advance, big style laser cutting is positioned to play an also much more considerable function in forming the future of production and layout.\nHuge layout laser cutting has actually become an advanced modern technology in the world of accuracy production. As sectors pursue higher precision and performance, the fostering of this innovative method has actually come to be progressively common. In this extensive overview, we will certainly explore the complexities of big style laser cutting, discovering its applications, benefits, and the crucial factors to consider for opening its complete possibility.","domain":"optical_engineering"}
{"url":"http://docs.rxlab.guide/colors/D-reproduction.html","date":"2023-12-04T04:15:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100523.4/warc/CC-MAIN-20231204020432-20231204050432-00657.warc.gz","language_score":0.9266400933265686,"token_count":528,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__64564306","lang":"en","text":"I.D - Color reproduction¶\nWhen it is a question of reproducing (synthesizing) colors, two systems are possible, according to the fact that the device is “passive” or reflecting (in painting, printing, etc.), i.e. that it needs to be illuminated, or “active”, and emits its own light (screen, projector, etc)\nD.1 - Additive synthesis¶\nIn such an additive system, the most luminous color is the white: it results from the addition of the various primitives * of which the pixels of the device are made, in general a combination of green, red and blue.\nThis system works by adding rays of light to mix the colors.\nA consequence to such a system is that a monochromatic color (the color of a primary* of the system, or the simulation of another monochromatic light obtained by mixing these primaries*) is inevitably less intense than a white one, contrary to the real world where everything is possible.\nAn additive system, being a light generator, can work in complete darkness, in which case the color reproduction can be perfectly controlled by not being influenced by any external light (as in a movie theater).\nD.2 - Subtractive synthesis¶\nWhen a color reproduction system is a reflective surface, it is the pigments that alter the light received; each pigment absorbs part of the rays received and reflects the rest. The resulting light is therefore necessarily of a lower intensity than that illuminating the surface: the system subtracts light rays from an available bouquet.\nAn important consequence is that a subtractive system depends on the light that illuminates it to reproduce colors: seen under a light poor in monochromatic rays*, an exposed painting will not render all its colors possible. For that, it is necessary to illuminate it not only with a white light, but with a white light “containing” enough different monochromatic* rays, of high quality1.\nA painting, a poster or any other object illuminated under a monochromatic light will be able to reproduce only this monochromatic* color, at different intensities, whatever the pigments which compose them.\nAll light sources are not equal! With identical color, the light of different types of bulbs or fluorescent tubes will not be the same once reflected and “decomposed”: the sources of better quality will restore better the colors of the surfaces which they meet, and will be often “more pleasant”. ↩","domain":"optical_engineering"}
{"url":"http://www.dlink.ir/en/NetworkCamera/OutdoorIPCamera/DCS_7510","date":"2014-12-18T08:29:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-52/segments/1418802765698.11/warc/CC-MAIN-20141217075245-00019-ip-10-231-17-201.ec2.internal.warc.gz","language_score":0.8755707144737244,"token_count":172,"dump":"CC-MAIN-2014-52","global_id":"webtext-fineweb__CC-MAIN-2014-52__0__71943331","lang":"en","text":"The DCS-7410 and DCS-7510 are day and night outdoor cameras with built-in infrared LEDs. The cameras can detect moving objects in total darkness, for distances of up to 30 or 50 meters.\nEquipped with a high-resolution Sony CCD image sensor, these cameras provide you with excellent image quality and level of detail. A built-in Infrared Cut Removable (ICR) flter in the DCS-7510 allows the camera to capture images in both good light and low light conditions by switching the infrared cut flter. Embedded with a powerful SoC (System-on-Chip), the cameras provide high-quality, real-time video compression in MPEG-4 and motion JPEG formats. These elements make the DCS-7410/7510 an ideal solution for 24-hour surveillance.","domain":"optical_engineering"}
{"url":"http://mjee.modares.ac.ir/article_15129.html","date":"2017-03-30T02:47:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218191984.96/warc/CC-MAIN-20170322212951-00019-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8909640312194824,"token_count":244,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__111088360","lang":"en","text":"1MSc Student, Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran, nbm.\n2Associate Professor, Nano-photonics and Optoelectronics Research Laboratory (NORLab), Shahid Rajaee Teacher Training University, Tehran, Iran,.\n3Professor, Graz University of Technology, Institute of Microwave and Photonic Engineering, Graz, Austria,\nIn this paper, analysis the performance of PI, PI-like fuzzy, and parallel fuzzy P+ fuzzy I controllers for He-Ne lasers frequency stabilization by combination of frequency locking and power balanced methods is presented. He-Ne lasers can be attributed to an unstable system due to the influence of environmental factors on its' frequency. Therefore, the stabilization of He-Ne laser is so important in sensitive applications such as laser interferometers and nanometrology systems. The simulation results of controllers by powerful software MATLAB/SIMULINK-GUI show that parallel fuzzy P+ fuzzy I controller has better stabilization performance and integrated absolute error (IAE) than others. Also, frequency fluctuations of He-Ne laser is about 2×10-11 by parallel fuzzy P+ fuzzy I controller.","domain":"optical_engineering"}
{"url":"https://www.s2corporation.com/contracts-news/category/IARPA","date":"2019-11-12T06:17:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496664752.70/warc/CC-MAIN-20191112051214-20191112075214-00064.warc.gz","language_score":0.9259675145149231,"token_count":302,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__102198487","lang":"en","text":"As of February 2015, S2 Corporation has received a second contract from the Intelligence Advanced Research Projects Activity (IARPA).\nS2 Corporation was recently awarded a contract from the Intelligence Advanced Research Projects Activity (IARPA). The contract work plan is entitled “Efficient High-bandwidth Photonic Computational Engine for Selection and Filtering”, and has a total contract ceiling of $996,495. The contract was awarded in response to IARPA-BAA-12-03 Safe and Secure Operations; IARPA-BAA-12-03-PR-4521. For the next year, S2 will advance and demonstrate the capabilities of an extremely powerful and efficient high bandwidth optical information processor, based on spatial-spectral (S2) holographic signal processing technology. The S2 processor has the potential to continuously monitor, characterize, select, and filter many (>100) parallel broadband optical information channels, each with up to 100 GHz of spectral coverage. The tasks chosen aim to highlight the S2 processor’s capabilities in the processing of optical information. The effort will analyze and demonstrate the feasibility of the S2 processor in scalable laboratory demonstration to enable processing of optical signals, such as those in the trunk of optical networks. The innovation builds on past existing R&D efforts at S2 Corporation in collaboration with our university academic partner Montana State University (MSU). A subcontract is being awarded to MSU Spectrum Lab and industry partner, EOSpace.","domain":"optical_engineering"}
{"url":"https://www.fibreoptic.com.ph/10g-sfp-cwdm.html","date":"2023-03-29T03:52:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948932.75/warc/CC-MAIN-20230329023546-20230329053546-00297.warc.gz","language_score":0.8433012366294861,"token_count":448,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__87936885","lang":"en","text":"10G CWDM SFP+ include CWDM SFP+ LR, CWDM SFP+ ER、CWDM SFP+ ZR, they are designed for 10G Ethernet and 2G/4G/8G/10G Fiber Channel applications. The CWDM SFP+ transceivers consist of two sections: transmitter section incorporates a colded EML laser while the receiver section consists of a APD photodiode integrated with a TIA. All CWDM SFP+ satisfy class I laser safety requirements and they are made with default Digital diagnostics functions. CWDM SFP+ wavelength is 1270nm to 1610nm, working distance from 10km to 20km, 40km and 80km. All these CWDM SFP+ are made to work with single mode optical fibers.\nCWDM 10G SFP 10km\nCWDM 10G SFP 10km is a very compact 10Gb/s optical transceiver module for serial optical communication applications at 10Gb/s.\nCWDM 10G SFP 20km\nThe CWDM 10G SFP 20km converts a 10Gb/s serial electrical data stream to 10Gb/s optical output signal and a 10Gb/s optical input signal to 10Gb/s serial electrical data streams.\nCWDM 10G SFP 40km\nThe high performance 1270～1610nm CWDM EML transmitter and high sensitivity PIN receiver provide superior performance for Ethernet applications at up to 40km links.\nCWDM 10G SFP 60km\nCWDM 10G SFP 60km complies with SFF-8431, SFF-8432 and IEEE 802.3ae 10GBASE-ER. Digital diagnostics functions are available.\nCWDM 10G SFP 80km\nCWDM 10G SFP 80km is a very compact 10Gb/s optical transceiver module for serial optical communication applications at 10Gb/s.\n10G CWDM SFP+ Transceivers Applications:\n- 10G Ethernet Systems\n- 10G Fiber Channel\n- CWDM Fiber Networks","domain":"optical_engineering"}
{"url":"http://www.wiibrew.org/wiki/Sensor_Bar","date":"2023-11-29T17:37:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100135.11/warc/CC-MAIN-20231129173017-20231129203017-00597.warc.gz","language_score":0.9346791505813599,"token_count":229,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__161364301","lang":"en","text":"The sensor in the Wiimote is a PixArt optical sensor that determines where the Wiimote is pointing. Unlike a light gun that senses light from a television screen, the Wii Remote senses light from the console's Sensor Bar (RVL-014), which allows consistent usage not influenced by the screen used. The Sensor Bar is about 20 cm (7.9 in) long and has ten infrared LEDs, five at each end of the bar. The LEDs furthest from the center are pointed slightly outwards, the LEDs closest to the center are pointed slightly inwards, while the rest are pointed straight forward. The Sensor Bar's cable is 353 cm (11 ft 7 in) in length. The bar may be placed above or below the television, centered horizontally, in line with the front of the television or the front of the surface the television is placed on. The Remote should be pointed approximately towards the Sensor Bar; precise pointing is not necessary so long as it is within the limited viewing angle of the Wii Remote.\nDue to the sensor being IR-based, it can detect any IR signal as input, this include candles.","domain":"optical_engineering"}
{"url":"https://www.benwick-sports.co.uk/accessories/8389-drennan-sunglasses.html","date":"2020-08-15T17:02:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439740929.65/warc/CC-MAIN-20200815154632-20200815184632-00535.warc.gz","language_score":0.9263582229614258,"token_count":129,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__119045638","lang":"en","text":"These 2 models of glasses are ideal for fishing.\nAqua sight has a 'sports' frame and is very lightweight.\nPolar eyes have a full frame design.\nThe amber polarising lenses are designed to block out harmful UVA and UVB rays and have a CE Category 3 rating. This is a dark tint that is ideal for strong sunlight and reducing surface glare.\nEach pair of Sunglasses also comes with a very handy, detachable sports strap made from elasticated Neoprene.\nThese stylish and practical sunglasses also come supplied in a modern zip-up EVA case complete with anti-static cleaning cloth.","domain":"optical_engineering"}
{"url":"http://isl.ee.boun.edu.tr/wp/wordpress/?p=490","date":"2023-12-05T21:34:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00669.warc.gz","language_score":0.9396928548812866,"token_count":374,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__158771987","lang":"en","text":"This work focuses on the design and development of quadrotors that are capable of autonomous landing on a stationary platform. This problem is motivated by the fact that quadrotors have to land frequently to charge their batteries, as maximum flight time is rather short with the current state-of-art. In this work, we particularly consider three different quadrotor systems including the quadrotor constructed in our Intelligent Systems Laboratory, the ISL quadrotor. The ISL quadrotor is endowed with a camera attached to a gimbal stabilizing the view for visual sensing, a laser range sensor for measuring the altitude, PIXHAWK flight controller and a Raspberry Pi 3 (RPi3) as an onboard computer for autonomous operation. The software is designed and developed in Robot Operating System (ROS) and includes control, visual processing and serial communication with the flight controller. The code is designed to be multi-threaded as have the quadrotor be capable of doing visual processing concurrently with flight control. The dynamic modeling of the quadrotor is based on one of the commonly used models. For the landing task, position, altitude, and velocity controllers based on proportional and derivative (PD) control are developed. Position information is provided by visual feedback through detecting the marker on the landing platform. The developed approaches are first tested on the Gazebo simulation environment. We also conduct similar landing experiments on the ISL quadrotor for different wind, light, and initial altitude conditions and observe that the quadrotor is able to land autonomously within approximately 80 cm error range on a stationary platform that is marked by a 50cm $\\times$ 50cm ArUco marker. The designed quadrotor is also capable of tracking a platform that is moving with a slow linear velocity.\nFor more info, pls contact Mustafa Mete.","domain":"optical_engineering"}
{"url":"https://iajoo.agrofarb.pl/tamron-70-200-f2-8.html","date":"2022-01-28T02:22:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305341.76/warc/CC-MAIN-20220128013529-20220128043529-00160.warc.gz","language_score":0.8667048215866089,"token_count":2184,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__64430268","lang":"en","text":"Tamron SP A025 70-200mm F/2.8 VC Di USD Lens For Nikon F - Black (AFA025N-700). According to latest rumors Sigma will soon announce a new 70-200mm lens F2.8 lens. The lens is expected to announce before Photokina 2018. The upcoming version will replace the existing 70-200mm lens. These lenses will initially arrive for Canon, Nikon and Sigma Native mount. We will update you soon as we get any new information. Tamron SP A025 70-200mm F/2.8 VC Di USD Lens For Nikon F - Black (AFA025N-700).\nxbox one headset adapter\nWhile the Tamron 70-200mm f/2.8 Di VC USD Lens is not Tamron's first 70-200mm f/2.8 lens, it is their first version to include vibration control. VC alone is a great upgrade feature, but the upgraded image quality in this lens is also big bonus. This lens 70-200 VC overall great image quality and good performance at a moderate price. 56 minutes ago · NO PAYPAL In immaculate condition comes with len hood and tripod collar and uv filter Pick up North Tivoli or postage is available NO PAYPAL, 1252635173. Tamron Lens SP 70-200mm F/2.8 Di VC USD (Nikon mount) review: High performance and excellent value Introduction Appealing to sports and action photographers as well those who use the immensely versatile range for portraits, the Tamron SP 70-200mm f/2.8 is a rightly popular lens.\nFeb 06, 2017 · Manufacturer description: The Tamron SP 70-200 F2.8 Di VC USH G2 substantially enhances the features of its predecessor. These include a thorough review of the optical, mechanical and electronic designs to increase autofocus speed and precision, reinforce VC (Vibration Compensation) functions and to shorten the minimum operating distance. Tamron 70-200 F2.8 G2 2. Nikon 70-200 F2.8 VRii กำลังชั่งใจอยู่ว่าตัวไหนดีกว่ากันครับ เพราะว่า Nikon 70-200 F2.8 VRii เป็นเลนส์ที่ออกมานานแล้ว ราคามือ 2. The Tamron SP 70-200 F/2.8 Di a high-resolution ultra-compact fast tele zoom. Its F/2.8 aperture, SP performance and agile telephoto make it ideal for fast action sports to spot news to posh weddings. Tamron’s SP 70-200mm F/2.8 Di LD (IF) Macro exemplifies the second of the two zoom focal lengths considered essential by many professionals..\nPentax-D HD FA* 70-200 F2.8 ED DC AW Tamron SP 70-200mm F/2.8 Di VC USD With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. While the Tamron 70-200mm f/2.8 Di VC USD Lens is not Tamron's first 70-200mm f/2.8 lens, it is their first version to include vibration control. VC alone is a great upgrade feature, but the upgraded image quality in this lens is also big bonus. This lens 70-200 VC overall great image quality and good performance at a moderate price. May 18, 2016 · → Sigma has a new patent for a 70-200mm f/2.8 DG OS HSM | Sport lens that will most likely replace the current 70-200mm f/2.8 EX DG OS HSM. Next are several new new lens patents from Canon and more: → Canon 50-300mm f/4.5-5.6 IS DO lens patent for APS-C mirrorless camera. → Canon EF-M 15-50mm f/3.5-5.6 IS .\nImprovements to the new SP 70-200mm F/2.8 G2 extend well into the lens barrel. Tamron has reduced the MOD from 1.3m (50.7 in) in our older model to 0.95m (37.4. The Tamron 70-200mm SP f/2.8 Di VC USD G2 is a fast, quiet lens with a constant f/2.8 maximum aperture, ideal for wedding & event photographers. Buy online!. Mar 13, 2007 · The Tamron 70-200 ƒ/2.8 telephoto zoom was announced in February 2008, updating and replacing their existing 70-200mm ƒ/2.8 zoom lens. The economical lens.\nThe Canon 70-200 f2.8 and the Sigma 70-200 f2.8. Because of the large price difference between these two lenses people often wonder what really sets them apart. More specifically why you may or may not want to purchase the Canon Len over the Sigma or vise verse. NO PAYPAL Immaculate condition Come len hood and tripod collar and uv filter Pick up North Tivoli or postage is available at buyer expense NO PAYPAL, 1252496223. Amazon, Camera lens comparison, Camera Lenses, Canon EF 70-200mm f/2.8L IS II USM Telephoto Zoom Lens for Canon SLR Cameras, Nikon, Portrait photography, Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Canon, Sony or Sigma, Tamron SP 70-200MM F/2.8 DI VC USD Telephoto Zoom Lens for Canon EF or Nikon Cameras, Tony Northrup.\nShop with confidence at Abe's of Maine Serving our customers for over 30 Years! PRODUCTS ARE: Factory fresh; In a secure cart; Includes all manufacturer supplied accessories. The Tamron SP 70-200mm f/2.8 Di VC USD G2 lens is on the same level playing field as lenses costing up to twice as much, punching far above its weight. It may not have the same silky smoothness in operation as its more expensive competition, but it delivers the goods, making no compromise on image quality. Tamron 70-200 f 2.8 DI VC USD Gen.1 für Canon. Ich biete mein Tamron 70-200 Blende 2.8 für Canon an, da ich das System wechseln werde. Das....\nSigma is, in many ways, the latecomer to the party here. Tamron has released two generations of their 70-200mm F2.8 VC lenses since Sigma’s EX lens was released in 2010. Both Canon and Nikon have released newer versions of their own 70-200mm F2.8 lenses in that period as well. The Tamron SP 70-200mm f/2.8 Di VC USD was introduced in 2012. It's a lens designed for the higher expectations of digital photographers. It offers \"VC\" (Vibration Compensation), Tamron's version of Image Stabilization. But it is also a 'third party' lens that carries the potential for compatibility issues with future Canon bodies. It's a very good lens, but not quite up to the standard of the Canon EF 70-200mm f/2.8 L IS II which was arguably the best mass-produced zoom lens in the world .... Oct 23, 2019 · Looking for an affordable alternative to Canon and Nikon's 70-200mm F/2.8 zooms? Tamron's upgraded SP 70-200mm F/2.8 G2 is an excellent option..\nThe SP 70-200mm f/2.8 G2 follows suit with an almost uniform chassis save for the focus/zoom rings and the switches that control vibration control and auto-focus; Tamron went as far as recessing the tripod collar to keep within the ascetic (as it did for the 150-600mm f/5-6.3 DI VC USD G2).. The SP 70-200mm f/2.8 G2 follows suit with an almost uniform chassis save for the focus/zoom rings and the switches that control vibration control and auto-focus; Tamron went as far as recessing the tripod collar to keep within the ascetic (as it did for the 150-600mm f/5-6.3 DI VC USD G2). The main contender is the Sony FE70-200 F2.8 GM. The Tamron is much lighter, smaller to carry in a bag , can focus closer and is half the price of the Sony FE70-200 F2.8 GM; The Sony FE70-200 F2.8 GM keeps its contant length when focusing, optical stabilisation and additional buttons (focus hold, distance limitation, AF/MF, OSS) and is compatible with Sony TC1.4 and TC2.0.\nBuy Tamron SP 70-200mm f/2.8 Di VC USD G2 Lens for Nikon F featuring F-Mount Lens/FX Format, Aperture Range: f/2.8 to f/22, One XLD Element, Five LD Elements, eBAND, BBAR, and Fluorine Coatings, Ultrasonic Silent Drive Autofocus Motor, VC Image Stabilization, Dust and Moisture-Resistant Construction, Removable Arca-Compatible Tripod Mount, Rounded Nine-Blade Diaphragm, Compatible. A popular telephoto zoom for a variety of shooting applications, this Canon EF-mount SP 70-200mm f/2.8 Di VC USD G2 Lens from Tamron is characterized by its bright f/2.8 constant maximum aperture, as well as sophisticated optical and physical designs. Find great deals on eBay for tamron 70-200 2.8 and tamron 70-200 2.8 canon. Shop with confidence.","domain":"optical_engineering"}
{"url":"https://ca.lightmalls.com/archon-dh30-ii-wh36-ii-kit-3-x-cree-xml-u2-led-3-mode-3600lm-100m-underwater-diving-flashlight-including-battery-and-charger","date":"2020-05-29T00:04:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347401004.26/warc/CC-MAIN-20200528232803-20200529022803-00009.warc.gz","language_score":0.8319618701934814,"token_count":380,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__86583933","lang":"en","text":"ARCHON DH30 II Canister Diving Light is a split diving light. It is lightweight and easy to carry. It is equipped with white LEDs for professional lighting. It has super long-range capability, which enables divers to display the lighting they want underwater. This lamp greatly enhances the professionalism of the lamp and is ideal for technical diving and recreational diving.\nSplit diving light with American LED wick\nSmooth aluminum reflector, super high temperature treatment, laminated alloy reflective film\nUnique luminous ring and side light design greatly enhance the application of light under water\nProfessional micro computer chip with low power prompt and low power protection\nAnti-reverse design, even if the battery is accidentally installed, it will not damage the lamp.\nAviation aluminum material, military grade three hard oxidized shell is more resistant to seawater corrosion\nLight Source: 3 * CREE XM-L2 (color temperature 6500K)\nMaximum brightness: 3600 lumens\nLight angle: 8 degree center angle spotlight + 110 degree side light\nWorking voltage: 9-14V\nLamp body size: the lamp head diameter is 60 mm, the lamp cap length is 91 mm, the battery box diameter is 31 mm, and the battery box length is 265 mm. Line length 1.2 meters\nLens specifications: 8 mm (imported PC material)\nBattery model: 3 * 26650 (with lithium ion rechargeable battery with protection board)\nLife time: 200 minutes for highlights, 450 minutes for low highlights, 500 minutes for highlights\nLight body weight: 866 grams (without battery)\nWater weight: 580 grams (with battery)\nLand weight: 1157 grams (with battery)\nWaterproof depth: 100 meters\n3*archon 26650 Li-ion battery\nUse spaces to separate tags. Use single quotes (') for phrases.","domain":"optical_engineering"}
{"url":"https://hollyhome.com/products/HollyHOME-2021-New-Fashion-Men&apos;s-Photochromic-Sunglasses-with-Polarized-Lens","date":"2021-06-16T08:46:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487622234.42/warc/CC-MAIN-20210616063154-20210616093154-00035.warc.gz","language_score":0.8396189212799072,"token_count":523,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__184678961","lang":"en","text":"1) 🎉89.96% of customers buy more than 2 because there is a 100% discount for buying 2 or more!\n3) Get a set of official glasses case and glasses cloth for free, only today!\n【ULTRA PHOTOCHROMIC DESIGN】This magical photochromic lens are based on the intensity of sunlight and ultraviolet light, darkening the light grey lens. What’s more, these glasses protect the eyes without interfering with your perception of color. Plus its fashion rectangular design, always match your daily dressing demand\n【UV400 POLARIZED PROTECTIVE LENS】These sunglasses are superior to the previous type of sunglasses in three ways - when moving indoors or outdoors, the lenses adjust to the reduced light conditions automatically. And secondly, the polarized lenses reduce flare and glare. Meanwhile, 100% UV protection layers against harmful UVA/UVB Rays\n【HIGH-STRENGTH LIGHTWEIGHT MATERIALS】Thanks to the use of innovative materials such as Kynetium™, Grilamid®, Magnesium.\n【NO MATTER DAY OR NIGHT, IT WORKS WELL】Our sunglasses are made of special photochromic polarized lenses. When driving at night or into a dark environment, the lenses are lightcolored transparent to enhancing the visibility while effectively reducing the glare. During the daytime, it can effectively filter the strong light, enhance the visual sharpness, reduce eyes fatigue, and keep the eyes always in the most comfortable state of outdoor activities.\nDiscoloration Test Methods:\nLow profile——Unpolarized light does not change color\nHD version——Polarized light does not change color\nIntelligent——Intelligent control of polarized light discoloration\nGet products for free——Low profile\nClick the ADD TO CART button! Order Yours Now!\nThe Checkout Process is Guaranteed to be 100% Safe and Secure with PayPal, Visa, Mastercard, Amex, Discover, Apple Pay.\n100% Satisfaction Guaranteed With Every Order.\nMONEY BACK GUARANTEE\nWe want you to be 100% satisfied with the products you buy from us. If for ANY reason you are not satisfied with your purchase, we offer an iron-clad money-back guarantee.\nBuying online can be a daunting task, so we want you to realize that there is absolutely ZERO risks in buying something and trying it out. If you don’t like it, we’ll make it right… It’s our promise!","domain":"optical_engineering"}
{"url":"http://www.green-home-source.com/led-light-bulbs.html","date":"2018-01-16T07:17:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084886237.6/warc/CC-MAIN-20180116070444-20180116090444-00141.warc.gz","language_score":0.9564813375473022,"token_count":1083,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__249735427","lang":"en","text":"LED Light Bulbs\n*UPDATE 10/2014: LED light bulbs are getting better and more affordable almost every day! For example, Cree just introduced their newest generation of energy-efficient led light bulbs for under $10 each. Click HERE to learn more!*\nIf you're interested in greening your home to save energy, resources, and money, one of the easiest and most affordable things to do is change how you light it. In today's green home, that usually means using compact fluorescent bulbs (CFLs) instead of traditional incandescent bulbs. However, new advances in LED light bulbs may mean that the CFL's days as efficiency-leader are almost over.\nLEDs: The New Kid on the Block\nLED (light-emitting diode) lights work by passing electrons through a semiconductor material. That's as scientific as we'll get when explaining where an LED's light comes from.\nWhile LED light technology has been around for awhile, the use of LEDs in residential light bulbs is relatively new. Much like the early days of the CFL, LED bulbs had some issues that most consumers could not overcome.\nResearchers originally had trouble creating LED light bulbs that could produce light capable of competing with, and replacing, the warm soft light of incandescent bulbs. Also, early LED lights were not anywhere bright enough to provide enough light to fill a room.\nAdd to that the fact that LED light bulbs were (and still are) quite expensive, and you can easily see why they haven't taken off….yet.\nThe Difference Between LED Lights and Other Lights\nIncandescent bulbs and CFLs emit light in all directions. LED lights emit light directed in a specific direction. For example, a CFL or incandescent bulb in a recessed can will waste half of the light it produces. A recessed LED light will project its light only downward where it's needed.\nLEDs and Energy Efficiency\nIf incandescent light bulbs weren't such inefficient energy-wasters, we probably wouldn't be discussing LEDs today. But they are, and that has driven a search for new, more efficient lighting technology, resulting in today's CFLs and tomorrow's LEDs.\nLED bulbs are on average 75% more efficient than incandescent light at producing the same level of light. The U.S. Department of Energy estimates that a rapid switchover to LED lighting in the U.S. by 2027 would deliver energy savings of roughly $265 billion. That's enough energy to avoid building 40 new coal-powered power plants, and enough to reduce the nation's electricity demand for lighting by 33%!\nMore Advantages of LED LIghts Over CFLs\nToday's new LED lights are about as efficient as CFLs, about 75% more efficient than incandescent's. But while CFLs last much longer than incandescent, up to 7,000+ hours, LED lights can last upwards of 25,000 hours. That's a dramatic improvement in durability.\nLED lights are also dimmable, while most CFLs cannot be used with dimmers. This allows LED lights to be used in a much wider number of applications around the home.\nAdvancements in the quality of LED light is also going to make them preferable to CFLs. LEDs can be made to create any color in the spectrum; this is going to give interior decorators and homeowners amazing new lighting choices in the near future.\nLEDs contain absolutely no mercury, unlike CFLs. This means not having to worry about breaking bulbs or disposal of dead bulbs. But LED bulbs last so long, you'll probably never have to throw one out!\nEnergy Star and LED LIghts\nThe rush to get new LED products to market means that quality may suffer. To counter this, Energy Star now certifies LED lights. In order to qualify for the Energy Star label, LEDs must demonstrate the following:\n- Brightness is equal to or greater than existing lighting technologies(incandescent or fluorescent) and light is well distributed over the area lighted by the fixture.\n- Light output remains constant over time, only decreasing towards the end of the rated lifetime (at least 25,000 hours or 22 years based on use of 3 hours per day).\n- Excellent color quality. The shade of white light appears clear and consistent over time.\n- Efficiency is as good as or better than fluorescent lighting.\n- Light comes on instantly when turned on.\n- No flicker when dimmed.\n- No off-state power draw. The fixture does not use power when it is turned off, with the exception of external controls, whose power should not exceed 0.5 watts in the off state.\nLED lights are in their infancy. Costs are still quite high, and brightness is still on the low end, especially compared with CFLs, but the industry is evolving rapidly. Several companies will be introducing exciting new LED products in the next few months that will revolutionize the light bulb world.\nAs LED technology continues to improve and catch on with the public, prices will fall over time, much like they have with CFLs.\nAt Green Home Source, we are very excited about both the energy-saving and decorating potential that LED lighting will create in the coming years.comments powered by Disqus","domain":"optical_engineering"}
{"url":"http://www.mi.ifn.cnr.it/laboratories/Femtosecond-Laser_Micromachining_Lab","date":"2017-04-29T17:28:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123549.87/warc/CC-MAIN-20170423031203-00179-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8614011406898499,"token_count":166,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__95073600","lang":"en","text":"This laboratory is fully equipped to perform femtosecond laser micromachining inside transparent materials or on the surface of any material.\nTwo femtosecond laser sources are available in this laboratory for the microfabrication activity.\nA reconfigurable setup of mirrors allows to steer either one of the two laser beams or their second harmonic, produced using an LBO crystal, to the machining area. Several microscope objectives with numerical apertures from 0.3 to 1.4 are available for focusing the laser beam on the sample.An air-bearing translation system (Aerotech FiberGLIDE 3D) enables three-axis motion of the sample with 50 nm accuracy and with speeds up to 300 mm/s. The stages are computer controlled and programmable to perform complex design microfabrication.","domain":"optical_engineering"}
{"url":"https://bettershopbd.com/product/151/8x-zoom-universal-telescope-mobile-lens","date":"2022-07-06T07:19:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104668059.88/warc/CC-MAIN-20220706060502-20220706090502-00241.warc.gz","language_score":0.7877618670463562,"token_count":120,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__112879207","lang":"en","text":"With telescope lens, you can see object faraway from your iPhone and Android with fantastic 8x optical zoom. The lens can be adjust right and left to fit your phone camera position.\nYou can zoom your lens up to 8x.\nEasy To Use\nBoth lenses attach easily to most mobile phone cameras\nFits Many iPhone and Android Phones\nIt Fits perfectly for many mobile phones. The lens can be adjust right and left to fit your phone camera position.\nLog In To Add/edit Rating\nYou Have To Buy The Product To Give A Review","domain":"optical_engineering"}
{"url":"http://www.hpa.org.uk/Topics/Radiation/UnderstandingRadiation/InformationSheets/info_LaserPointers/","date":"2014-08-29T05:13:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-35/segments/1408500831903.50/warc/CC-MAIN-20140820021351-00205-ip-10-180-136-8.ec2.internal.warc.gz","language_score":0.94278883934021,"token_count":3399,"dump":"CC-MAIN-2014-35","global_id":"webtext-fineweb__CC-MAIN-2014-35__0__127774684","lang":"en","text":"The misuse of laser pointers (sometimes referred to as laser pens) reported in the press has generated public concern over the safety of these devices. The following provides basic information on the properties of laser radiation, the different laser Classes and summarises the HPA position on the issue of the safety of laser pointers. The advice from the HPA takes account of the current British Standard for laser safety, and the technically equivalent European and International Standards. NRPB (now the Radiation Protection Division of the HPA) was involved in the initial development of these Standards and currently provides input to the British Standards Institution and International Electrotechnical Commission Technical Committees responsible for maintaining these documents.\nNRPB provided advice to the then Department of Trade and Industry concerning the safety of hand-held laser pointers and the optical hazards posed by the use of these products.\nLasers are devices which produce radiation with unique properties. It is these properties that distinguish laser radiation from the radiation produced by more familiar sources such as the sun or the common household electric light bulb. When the radiation emitted by a source can be detected by the eye and produces a sensation of vision, it is referred to as light. An electric light bulb produces radiation comprising many different wavelengths, perceived as white light, and emits fairly equally in all directions. The radiation produced is said to be highly divergent, i.e. the light spreads out rapidly as the observer moves away from the bulb. It is this property which allows the illumination of large areas using a single light bulb. In contrast a laser will produce radiation over a very narrow wavelength band, so narrow that the laser is referred to as a monochromatic or single wavelength source. If the laser emits in the visible region then the radiation is perceived as a single colour. The wavelength of light is usually measured in nanometres, or one-thousand-millionth of a metre and is abbreviated to \"nm\". The laser also produces a very narrow beam which diverges, or spreads out, very little with increasing distance from the source. This low divergence property means that the laser output is highly directional, forming a pencil-like beam that will still appear as a small spot when shone against a surface, even at large distances (i.e. 100 metres plus). A consequence of this is that high power devices can present a hazard over considerable distances. When considering the safety implications of the laser beam an important parameter is the amount of power in the beam divided by the cross-sectional area of the beam. This is called the irradiance and is usually quoted in watts per square metre or W m -2.\nLaser pointers have been used as presentational aids by professional trainers for a number of years, with no reported incidents in the UK. They are usually portable, low powered, battery operated, hand held laser devices. Commonly available laser pointers generally emit red coloured light (wavelengths between 630 and 670 nm), although more expensive devices are available which emit green coloured light (532 nm). The response of the human eye is wavelength dependent and peaks at around 550 nm, the response decreasing as either end of the visible spectrum is approached (400 nm to 780 nm). As a result, if laser pointers are compared at three different wavelengths (670 nm, 635 nm and 532 nm) but at the same radiant power, the brightness as perceived by the eye will be approximately in the ratios 1 : 10 : 30. Laser pointers emitting light with the laser wavelength which is closer to the eye's peak response are therefore capable of producing the adequate visual stimulus at lower radiant powers.\nLaser pointers can be pen shaped, and these are the type usually marketed for professional use (figure 1). Devices intended for the novelty market can be of different shapes. These novelty laser pointers may also contain either interchangeable effects heads (figure 2) or have an integral selector control (figure 3). They are commonly supplied as key rings.\nLaser pointers sold in the UK should be classified in accordance with the current British Standard 1 on laser safety. This document specifies requirements for the manufacturers of laser products to ensure that the risk of accidental exposure is minimised through the use of engineering control features and product labelling, and by specifying minimum requirements for the supply of product information to allow for its safe use. A user's guide to the Standard also contains advice to the user of laser products in terms of procedural controls and Class-specific training requirements 2. In the USA there is a Federal Performance Standard for Laser Products 3 which has similar requirements, but there are differences between these two documents. This is discussed below (see Laser Classes).\nIf product mislabelling is suspected, or there is doubt over the classification of a product then measurements should be carried out in accordance with the requirements of the British Standard to determine the actual laser Class to which the device should be assigned. A visual inspection of a laser product or its laser output will not provide any indication of the appropriate Class for the device.\nThe British Standard sets out seven Classes of laser, these are Class 1, Class 1M, Class 2, Class 2M, Class 3R, Class 3B and Class 4. The higher the Class number, the greater the laser radiation hazard posed by the laser. Class 4 lasers are high power devices, usually needing a mains power supply. Class 4 lasers are used for specific applications in research, medicine and industry. They are also used in the entertainment industry. Class 4 lasers are not designed to be used as laser pointers.\nThe classification system uses the concept of an Accessible Emission Limit (AEL). An AEL is the maximum value of accessible laser radiation to which an individual could be exposed during the operation of a laser and is dependent on the laser Class. The AEL values are in turn based on Maximum Permissible Exposure (MPE) levels. An MPE is a level of laser exposure which it is believed an individual could be exposed to without incurring an injury. An MPE may therefore be considered as a maximum safe level of exposure. MPE levels are specified for both the eye and skin as a function of the wavelength of the laser radiation and the duration of exposure. These MPE values are internationally agreed.\nA laser is assigned to a particular Class when the measured emission level exceeds the AEL for all lower laser Classes but does not exceed the AEL for the Class assigned. For example, a laser will be assigned as a Class 3R laser product when the maximum measured accessible emission level exceeds Class 1, Class 1M, Class 2 and Class 2M AEL values but does not exceed the Class 3R AEL. Once a laser has been assigned to a particular Class there are other requirements prescribed in the British Standard which should be met. These will include product labelling and customer information, and may include specific engineering control features to be incorporated in the laser product depending upon the Class assigned. A summary of the laser Classes is given below.\nThe following laser classification scheme is taken from BS EN 60825-1: 1994 incorporating Amendment Numbers 1, 2 and 3, September 2002 2.\nClass 1 lasers are products where the radiant power of the laser beam accessible (the accessible emission) is always below or equal to the Maximum Permissible Exposure value. Therefore, for Class 1 lasers the output power is below the level at which it is believed eye damage will occur. Exposure to the beam of a Class 1 laser will not result in eye injury. Class 1 lasers may therefore be considered safe. However, Class 1 laser products may contain laser systems of a higher Class but there are adequate engineering control measures to ensure that access to the beam is not reasonably likely during normal use. Examples of such products include laser printers and compact disc players.\nClass 1M lasers are products which produce either a highly divergent beam or a large diameter beam. Therefore, only a small part of the whole laser beam can enter the eye. However, these laser products can be harmful to the eye if the beam is viewed using magnifying optical instruments. Some of the lasers used for fibre-optic communication systems are Class 1M laser products.\nClass 2 lasers are limited to a maximum output power of 1 milliwatt or one thousandth of a watt (abbreviated to mW) and the beam must have a wavelength between 400 and 700 nm. A person receiving an eye exposure from a Class 2 laser beam, either accidentally or as a result of someone else's deliberate action (misuse) will be protected from injury by their own natural aversion response. This is a natural involuntary response which causes the individual to blink and avert their head thereby terminating the eye exposure. Repeated, deliberate exposure to the laser beam may not be safe. Some laser pointers and barcode scanners are Class 2 laser products.\nClass 2M lasers are products which produce either a highly divergent beam or a large diameter beam in the wavelength range 400 to 700 nm. Therefore, only a small part of the whole laser beam can enter the eye and this is limited to 1 mW, similar to a Class 2 laser product. However, these products can be harmful to the eye if the beam is viewed using magnifying optical instruments or for long periods of time. Some lasers used for civil engineering applications, such as level and orientation instruments are Class 2M laser products.\nClass 3R lasers are higher powered devices than Class 1 and Class 2 and may have a maximum output power of 5 mW or 5 times the Accessible Emission Limit (AEL) for a Class 1 product. The laser beams from these products exceed the maximum permissible exposure for accidental viewing and can potentially cause eye injuries.\nThis Class, which was introduced into the British Standard with Amendment 3, replaces the former Class 3A and the low power part of Class 3B. Class 3A had the additional requirement that the irradiance of the laser beam should not exceed 25 W m -2. The effect of the irradiance limit was to restrict the power admitted to a fully dilated human eye (taken as a 7 mm acceptance aperture) to 1 mW. As such, accidental exposure to a Class 3A laser beam was no more hazardous than accidental exposure to a Class 2 laser beam. An individual accidentally exposed would be protected from injury by their natural aversion response. Class 3A laser pointers were, however, potentially hazardous when viewed with an optical aid such as binoculars and were therefore not suitable for the general consumer.\nTo satisfy the irradiance criteria, a laser pointer with an output power greater than 1 mW would have to produce an expanded beam to reduce the irradiance below 25 W m -2. As the characteristic feature of a laser pointer is the small spot produced by the narrow beam, expanding the beam area to satisfy the irradiance criteria effectively destroys this useful property. It was therefore extremely unlikely that a laser pointer with a power output in excess of 1 mW would satisfy the Class 3A AEL criterion. Therefore, in general, laser pointers were either Class 1, Class 2 or Class 3B products. The former Class 3B laser pointers, which did not exceed 5 mW, are now Class 3R.\nThe American Standard 3 does not have the Class 3A irradiance criteria previously specified in the British Standard. Therefore, a correctly classified American Class IIIA laser pointer would have become Class 3B device when classified against the British Standard. The use of Roman numerals should indicate that the product has been classified in accordance with the American Standard. In practice, examples occur where an inappropriate 3A label has been substituted for the IIIA label. All of the American IIIA laser products will now be Class 3R under the British Standard.\nExamples of Class 3R products include some laser pointers and some alignment products used for home improvement work.\nClass 3B lasers may have an output power of up to 500 mW (half a watt). Class 3B lasers may have sufficient power to cause an eye injury, both from the direct beam and from reflections. The higher the output power of the device the greater the risk of injury. Class 3B lasers are therefore considered hazardous to the eye. However, the extent and severity of any eye injury arising from an exposure to the laser beam of a Class 3B laser will depend upon several factors including the radiant power entering the eye and the duration of the exposure. Examples of Class 3B products include lasers used for physiotherapy treatments and many research lasers.\nClass 4 lasers have an output power greater than 500 mW (half a watt). There is no upper restriction on output power. Class 4 lasers are capable of causing injury to both the eye and skin and will also present a fire hazard if sufficiently high output powers are used. Lasers used for many laser displays, laser surgery and cutting metals may be Class 4 products.\nThe British Standard provides advice on the use of lasers for demonstrations, displays and exhibition and states that only Class 1 or Class 2 devices should be used in unsupervised areas unless under the control of experienced well-trained operators. Laser pointers used by, for example, professional lecturers in the workplace are considered to fall under this category. Minimum training requirements are specified for operators using lasers of a higher Class for these purposes due to the risk of eye injury. Such training should include guidance to the user on the risks from the laser beam and advice not to point the beam at anyone.\nThe HPA Radiation Protection Divison has examined many laser pointers available to the general public in order to assess their laser Class and have found a significant proportion of these products to be Class 3R lasers and several Class 3B. The body's natural aversion responses are unlikely to provide adequate protection from eye injury for Class 3B laser pointers.\nGreen laser pointers have given a particular cause for concern. Many of these are not even suitable for professional use because they cause afterimages in people viewing the beam on a projection screen. Those close to the screen may also experience a grey 'comet tail' following the beam as it is moved across the screen. Some of these green laser pointers produce beams that consist of a series of bursts (or pulses) of light with high peak powers in each pulse. The manufacturers often quote average power, which gives a misleading indication of the risk. Because of the way the green beam is generated, there may also be other, invisible, laser beams emitted. Specialist equipment is needed to identify these problems.\nAlthough the risk of a permanent eye injury from a laser pointer may be small, an individual receiving even a transient eye exposure from a laser pointer will experience a bright flash, a dazzling effect, which is likely to cause distraction and temporary loss of vision in the affected eye and possibly after-images. The time taken to recover from these effects will vary for different individuals and will also be dependent on the ambient light level at the time of exposure. Medical attention should only be sought if after-images persist for hours, or if a disturbance in reading vision is apparent.\nMany of the laser pointers assessed by the HPA were either incorrectly labelled or not labelled at all. It was also unusual to find any information on laser safety or warnings on the implications of potential misuse supplied with the products.\nA number of high-power laser pointers, generally emitting green beams, are available over the internet. The laser beam powers may be up to a few hundred milliwatts. These devices are extremely dangerous and are not suitable for sale to the public.\nThe HPA considers the professional use of a Class 1 or Class 2 laser pointer as a training aid in the workplace to be justified, and regards these Classes of laser product as being generally adequate for such use. The use of Class 3R laser pointers up to 5 mW may be justified for some applications in the workplace where the user has received adequate training.\nThe HPA advises that the sale of laser products to the general public for use as laser pointers should be restricted to Class 1 or Class 2 devices which should be classified in accordance with the requirements of the current British Standard and should be sold with sufficient accompanying information to enable the user to operate the product in a safe manner. Toys should be Class 1 or of such low output that they do not need to be classified.\nAfter seeking advice from NRPB (now the Radiation Protection Division of the HPA) the then Department of Trade and Industry urged Trading Standards Authorities to use their existing powers under the General Product Safety Regulations 2005 4 to remove laser pointers of a Class higher than Class 2 (as defined in the British Standard) from the general market. Such devices are too powerful for general use as laser pointers and present an unacceptable risk in the hands of the consumer because they may cause eye injury in normal reasonably foreseeable use.\n(revised October 2007)\nLast reviewed: 21 May 2010","domain":"optical_engineering"}
{"url":"https://shvs.pro/keyence-lv-h32-66/","date":"2020-10-21T06:47:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107876136.24/warc/CC-MAIN-20201021064154-20201021094154-00183.warc.gz","language_score":0.812400221824646,"token_count":550,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__7268165","lang":"en","text":"LV-H32, Reflective Sensor Head, Spot Type, Variable Spot in LV series by KEYENCE INTERNATIONAL (BELGIUM). Buy KEYENCE LV-H32 LASER SENSOR HEAD NEW IN BOX: Security Sensors – ✓ FREE DELIVERY possible on eligible purchases. Find great deals for KEYENCE Laser Sensor Lv-h32 Lvh Shop with confidence on eBay!.\n|Published (Last):||10 July 2016|\n|PDF File Size:||16.26 Mb|\n|ePub File Size:||14.42 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nKEYENCE Laser Sensor Lv-h32 Lvh32\nSemiconductor Laser Light Source By using semiconductor laser as a light jeyence, it allows the LV series to form a sharp beam spot even at a long distance. Detecting Wafer Rings With the long detecting distance and adjustable beam spot diameter, the LV-H32 eliminates the need for changeover adjustment even when the diameter of a wafer changes.\nThe LV’s long distance detection is accurate and does not obstruct the operation.\nBy using a laser as a light source, the The LV-H32’s offers a bright beam spot, allowing for easy setting. A sensor can not be mounted near the press because it will interfere with the manual positioning of parts.\nOverview Specs Dimensions Models Downloads. With the long detecting distance and adjustable beam spot diameter, the LV-H32 eliminates the need for changeover adjustment even when the diameter of a wafer changes.\nDetecting workpieces in a press A sensor can not be mounted near the press because it will interfere ov the manual positioning of parts.\nBy using semiconductor laser as a light source, it allows the LV series to form a sharp beam spot even at a long distance. Digital Laser Sensor LV series. Long Distance, Adjustable Beam Spot Regardless of your target distance, you keuence easily adjust the beam spot to meet your application needs.\nLV-H32 – Reflective Sensor Head, Spot Type, Variable Spot | LV series | KEYENCE America\nLong Range Focus The focal distance of the spot can be freely adjusted according to the application. Visible red semiconductor laser.\nDifferentiation of Wire Colours in a Harness The focus can be adjusted for a desired distance, allowing for flexible sensor mounting. Regardless of your target distance, you can easily adjust the beam kryence to meet your application needs.\nEven when mounted far away from the target, the LV series can accurately detect and differentiate that which would have been impossible with a sensor using a LED as a light source.","domain":"optical_engineering"}
{"url":"http://customauto.com/styling/streetglow-xhp-series-led-headlight-conversion-systems-utilize-the-latest-technology-and-material-in-the-world/","date":"2019-06-16T09:16:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998084.36/warc/CC-MAIN-20190616082703-20190616104703-00002.warc.gz","language_score":0.9063931703567505,"token_count":271,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__200852729","lang":"en","text":"12/29/2016 4:40:59 PM\nStreetGlow “XHP” Series LED headlight conversion systems utilize the latest technology and material in the world. Incorporating the award winning CREE® XHP50 LED’s made specifically for automotive forward lighting. Mounted on aviation grade 6063 aluminum for the greatest heat dissipation available, coupled with our patented beam selector dial to achieve your desired beam pattern.\nCANbus Electronic drivers make installation in all applications error free with plug and play hardware even a novice can do. StreetGlow conversion kits offer an upgrade to your existing Halogen or HID lighting system. LED headlights offer increased visibility over Halogen and HID in both low beam and high beam functions for added safety. LED lifespan is rated for over 100,000 hours and most likely never needs replacing. Offered in 6500 kelvin rating to achieve the modern look of LED lighting often seen in many newer vehicles.\nStreetGlow provides a new “Bulb Application guide “ on our website which has bulb data for all Vehicles, Trucks, Motorcycles, Snowmobiles and more… simply enter year, make and model and viola, all bulb models for that vehicle will pop up for easy sales application answers. For more info see www.streetglow.com","domain":"optical_engineering"}
{"url":"https://bigmonster.net/foldable-oled-producers-make-screens-thinner-by-changing-polarizer-with-coloration-filters/","date":"2020-09-20T02:13:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400193087.0/warc/CC-MAIN-20200920000137-20200920030137-00178.warc.gz","language_score":0.9215957522392273,"token_count":325,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__85558555","lang":"en","text":"Color filters are apparently replacing polarizers in foldable variants of OLED panels (organic light emitting diode) in the near future. This change would bring various improvements for the display technology along with multiple benefits.\nAccording to a new report from UBI Research, known firms that manufacture such foldable OLED displays are working on bringing color filters that will allow panels to become thinner and brighter. For those unaware, Polarizers can be found in OLED panels and are used to deflect reflections from external lights.\nEditor’s Pick: Lenovo Legion Gaming Phone will feature dual liquid cooling system with 14 temperature sensors\nThe versions of OLED that is currently available in the market generally stack and encapsulation layer, polarizer, optically clear adhesive, a cover window on top of the light emitting layer. Furthermore, the cover window is made from a polyimide film or ultra thin glass (depending on the manufacturer).\nWhile vendors were already using polarizers with a thickness within the 10 micrometer range over the 100 micrometer ones used in previous generations, this is still considered thick and lowers the overall brightness of the OLED panel. Notably, Chinese display maker BOE had showcased a foldable OLED panel back in 2017, which utilized a lower temperature color filter instead of a polarizer. The company said that the was “100 times thinner and 23% more bright than OLED panels that used polarizers.”\nUP NEXT: Grab Blackview BV6300 Pro camera-centric rugged smartphone at a limited-time discount sale of upto 26%\nALWAYS BE THE FIRST TO KNOW – FOLLOW US!","domain":"optical_engineering"}
{"url":"https://ram-usa.com/aerial/steam-leak-detection/","date":"2024-02-26T08:01:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00194.warc.gz","language_score":0.9492854475975037,"token_count":405,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__134622353","lang":"en","text":"Cost reduction and increased work efficiency are more important than ever today. Businesses must be proactive to remain competitive, and many have turned to cutting-edge technology. One of the technologies that can significantly reduce costs and increase business productivity is aerial infrared steam leak detection.\nAerial infrared steam leak detection is a dependable testing method that allows operators in industries ranging from manufacturing to power plants to detect leaks quickly and accurately. Using aerial infrared thermal imaging, you can quickly and easily detect hot spots in hard-to-reach areas that are difficult to access with traditional methods. This saves time and money and improves safety by eliminating the need to check equipment or areas with the naked eye, lowering the risk of injury or exposure to hazardous conditions.\nAerial infrared steam leak detection has a higher resolution, allowing for more precise leak location and data on any leak’s size, shape and severity. We find steam leaks with an infrared camera by measuring temperature differences between spots inside the pipes and the pipe’s exterior. For example, inconsistencies could indicate a security breach. We also detect problems with insulation near steam lines, valves, pumps and other machinery. Using aerial infrared steam leak detection, operators identify and address issues before they become detrimental to business operations due to costly water damage.\nThe detection of infrared steam leaks provides peace of mind to business owners. Aerial infrared steam leak detection lets operators plan maintenance and repairs by watching their operations and identifying potential safety hazards. This guarantees the smooth operation of their businesses and provides peace of mind to those in charge.\nManual steam leak detection methods are no longer needed for detecting, diagnosing, and repairing leaks. Instead, protect your steam system’s safety, efficiency and cost-effectiveness by using aerial infrared steam leak detection. This cutting-edge technology detects steam and energy loss from a fixed elevation or platform, allowing us to identify pipes and other leaks quickly and save you energy. Use aerial infrared steam leak detection to save money, work more productively and have more time.","domain":"optical_engineering"}
{"url":"https://wiki.infn.it/strutture/lnf/da/plasmonx/home","date":"2023-12-05T15:57:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.2/warc/CC-MAIN-20231205140836-20231205170836-00177.warc.gz","language_score":0.9173669815063477,"token_count":279,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__70994724","lang":"en","text":"The aim of the PLASMONX project is to provide the LNF (Laboratori Nazionali di Frascati) with a world-class, high-power laser facility suitable for the development of an innovative, high-gradient acceleration technique based upon super-intense and ultra-short laser pulses, and X/gamma-ray tunable sources using Thomson scattering of optical photons by energetic electrons. The facility makes use of a new generation laser, FLAME, will be built in close interaction with the SPARC project presently in progress at LNF. The main purpose of the facility will consist in R&D activity aimed at the following objectives:\nBoth lines require very bright and short electron bursts together with very high power laser pulses of sub-100 fs duration. Studies at the forefront of research in this field consistently indicate that the power level and the focused intensity for a laser system appropriate for these studies are >10TW and >1019 W/cm2 respectively. The activity will be carried jointly by three INFN units and one CNR unit. The R&D activity carried out at this facility will be open to some extent to external users, in particular for what concerns bio-medical oriented uses of the available sources for diagnose and therapy.\nThis page is a test draft, the official site still being here\nThe project is divided into two main streams:","domain":"optical_engineering"}
{"url":"https://www.flexcellint.com/category/microscopy","date":"2024-03-03T16:01:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476396.49/warc/CC-MAIN-20240303142747-20240303172747-00550.warc.gz","language_score":0.8897786736488342,"token_count":151,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__147801009","lang":"en","text":"Single-well devices designed to allow the user to observe signaling responses to strain in real time on a microscope stage.\nThe StageFlexer® is designed to strain cells in monolayer while viewing the cellular activity with an upright microscope. The Inverted StageFlexer® device allows observation with an inverted microscope.\nThe StagePresser™ is designed to compress a single tissue sample or cell-seeded construct in 3D culture while viewing cellular activity under a microscope.\nFluid Shear Application:\nThe FlexFlow™ is a parallel plate laminar flow device designed to apply fluid shear stress and/or cyclic strain to cells in culture while providing a means for viewing cell activity under a microscope in real time.","domain":"optical_engineering"}
{"url":"https://cpfd.cnki.com.cn/Article/CPFDTOTAL-ZKYQ202105001070.htm","date":"2021-12-06T05:46:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363290.39/warc/CC-MAIN-20211206042636-20211206072636-00616.warc.gz","language_score":0.8929436206817627,"token_count":243,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__146421193","lang":"en","text":"Dual-passivation of ionic defects for highly crystalline perovskite\n【摘要】：The ionic defects in hybrid halide perovskite materials served as the recombination center severely restricts its application for solar cells. Here, we proposed a dual-passivation strategy via simply incorporating low-cost ammonium chloride to simultaneously passivate negative-and positive-charged ionic defects, as indicated by first-principles density functional theory calculation. The efficient defect modulation reduces the defect density and prolongs the carrier lifetime, thereby contributing to the highly crystalline perovskite, which is demonstrated by light-dependent kelvin probe force microscopy, transient absorption and visualized fluorescence lifetime imaging microscopy. Benefiting from these merits, the power conversion efficiency of perovskite solar cells is boosted up to 21.38%. More importantly, this dual-passivation approach can be further extended to mixed-cation perovskite systems, not limited in traditional methylammonium based perovskite only. Such methodology of simultaneously regulating ionic defects in different types may probably give impetus to effectively promote perovskite evolution.","domain":"optical_engineering"}
{"url":"http://hrl.com/lasers/lsr_maser.html","date":"2013-05-23T05:58:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368702900179/warc/CC-MAIN-20130516111500-00005-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.943588137626648,"token_count":418,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__28410905","lang":"en","text":"Maser to Laser\nA maser operates in a similar manner as the laser but produces and amplifies electromagnetic radiation mainly in the microwave region of the spectrum.\nThe invention of the maser (microwave amplification of stimulated emission of radiation) in 1954 by Charles Townes and Arthur Shawlow led to new investigations into light amplification by stimulated emissions of radiation, or laser, a term coined by American physicist Gordon Gould in 1957.\nGould, like Townes and his colleagues, had proposed using optical pumping to excite a maser, which originally used stimulated emission in a stream of energized ammonia molecules to produce amplification of microwaves. If the concept worked with visible light, the potential of the technology would be enormous, projecting the radio spectrum \"into a range some ten thousand times higher than that which was previously attainable,\" Theodore Maiman said at a press conference held in New York City in July 1960. \"Its success marks the opening of an entirely new era in electronics.\" (Read Maiman's remarks.)\nAt Hughes Research Laboratories, Maiman and his team had been investigating both the maser and laser concepts. Maiman proposed using ruby as the lasing medium, the substance that supplies the atoms or molecules to be stimulated. He set about demonstrating the laser concept in the spring of 1960.\nHow the Ruby Laser Works\nA crystal of ruby was at the center of the first laser (a replica of which is shown above), providing the electrons to be stimulated. A fully reflecting mirror is placed on one end of the ruby cylinder and a partially reflecting mirror on the other. The cylinder is placed inside a high-intensity lamp, which provides a flash of white light that triggers the laser action. Wavelengths in the flash excite electrons to a higher energy level. Upon returning to their normal state, the electrons emit ruby-red light. The mirrors reflect some of the light back and forth inside the ruby crystal, stimulating other excited electrons to produce more red light, until the light pulse builds to high power, draining the energy stored in the ruby crystal.","domain":"optical_engineering"}
{"url":"https://www.ecochem.biz/StackMonitor/StackAnalyzer.php","date":"2023-06-10T19:03:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224657735.85/warc/CC-MAIN-20230610164417-20230610194417-00366.warc.gz","language_score":0.9309660792350769,"token_count":1149,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__70532670","lang":"en","text":"The MC3 is a multicomponent IR gas analyzer that is specifically designed for continuous monitoring of a flue gas stream. The infrared optical bench, sample cell and control components are all integrated into one convenient, and easily serviced ventilated enclosure.\n1. Optical bench\nThe infrared optical bench consists primarily of an infrared source with chopper, a sample cell that the infrared light pulses travel through, a motor driven filter disk that can put up to 12 different optical filters or gas filled cells in the infrared light beam, and a solid state detector to measure energy of the infrared light pulses. To understand the operation it is necessary to first understand the underlying analytical techniques.\n1a. Gas Filter Correlation Technique\nThe Gas Filter Correlation technique is a well-known method to reduce cross sensitivities to gases that cause interference in infrared measurements. In the technique an optical band pass filter is used to select an infrared band and then a cell filled with 100% concentration of the gas of interest is placed in the beam, effectively blocking the spectral lines that the gas absorbs at. Alternately with the gas filled cell, a clear aperture with no absorption is placed in the beam. In essence, the gas filled cell is blocking all of the energy in a specific spectral line, creating a reference pulse that is absolutely free of variation due to the gas of interest. The other pulse coming through the clear aperture can be reduced by the gas of interest, thus will vary the ratio of the two pulses with variations of the gas of interest. The result from the IR detector is the presence of two electrical pulses that represent IR energy levels, one missing the energy absorbed by the gas filled cell and the other containing all of the energy of the infrared source. If the IR beam passes through a sample cell that has none of the gas of interest, then the two pulses will be significantly different in amplitude. If the gas of interest is present in the sample cell then the ratio of the two pulses is reduced...in theory if the sample cell concentration is high enough then the two pulses will be the same amplitude with a ratio of 1. The Gas Filter Correlation technique is applicable to any gas that presents adjacent harmonic spectral absorption lines. It is important to note that variations in optical clarity like dirt on cell windows, source strength, and other causes not related to the spectral lines selected, will have no effect on the RATIO of the two pulses, making this an extremely sensitive and selective analytical technique.\n1b. Single Beam Dual Wavelength Technique\nIn the Single Beam Dual Wavelength technique ultra narrow band optical filters are used to select infrared wavelengths. One wavelength is at a spectral line that the gas of interest absorbs (measuring) at, and the other is one at which it does not (reference). Under a zero condition in the sample cell the two cells are alternately placed in the beam and the resultant electrical pulses are set as equal. If the gas of interest is present in the sample cell the measuring pulse is reduced in relation to the reference pulse and the ratio of the two is used to output a signal proportional to concentration in the sample cell. The MC3 analyzer can utilize either of these techniques, depending on the gas to be measured and the range of analysis.\n2. Folded Path Sample Cell\nOne of the early challenges to be faced by Infrared photometers was that of the sample cell path length. That is the simple problem of trying to place enough molecules into the infrared beam to produce a usable signal. Indeed, many IR applications would have required lengths longer that 60 feet for the lower ranges of analysis, an impossible task for any practical instrument. In the late 60s sample cell developers created a technique that allows very long path lengths to be achieved in compact cells, using mirrors and a folded path technique. Simple and robust they have allowed IR photometers to routinely have paths as long as 20 meters yet remain in small envelopes. The sample cell in the MC3 is fully adjustable for optimization of each application and has reduced volume to save on maintenance and calibration gases. The standard sample cell path is 6 meter however for higher sensitivity it is possible to incorporate a 12 meter path length.\nThe MC3 is specifically designed for Continuous Emission Monitoring service and the optical bench, sample cell and control components are all integrated into one convenient, and easily serviced enclosure. In particular the integrated design allows the photometer source and detector to be housed in the same temperature controlled housing which significantly improves stability. The filter disk, holding 12 filters each is controlled by a stepper motor. The filters are near 1/2 inch in diameter and the infrared beam is less than 1/8 inch so that alignment of the filters is never critical. The solid state IR detector utilizes the exact same technology as found in the Sidewinder missile. It is located on its own subassembly but in the temperature controlled housing with the IR source and Pre-Amplifier.\n4. Inputs and Outputs\nThe MC3 analyzer communicates with the System PLC using a serial link and Modbus protocol. The System PLC unit can be connected to the plant’s network and standard Ethernet TCP/IP can be used for communications. This is especially useful when a remote data acquisition system is employed. Additional System PLC units can be located anywhere within the plant and the only connection needed to communicate all system analog and digital signals is the plant’s existing network instead of scores of conductors and cable trays. In addition, the analyzer can be controlled via modem, Ethernet or TCP/IP. This feature can greatly simplify complex applications that translate into significant savings of installation cost.","domain":"optical_engineering"}
{"url":"http://www.freestylepost.com/1110-best-rated-flashlight-brands-2018/","date":"2018-09-24T15:33:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267160568.87/warc/CC-MAIN-20180924145620-20180924170020-00317.warc.gz","language_score":0.8955734372138977,"token_count":377,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__154575317","lang":"en","text":": This cool flashlight comes with C4 LED which gives 12,000 candela peak beam intensity which is powered by 630 lumens. with it’s high quality aluminium body and crystal clear shock mounted lens it grabs the second position in the list. MagLite ST3D016 3-D Cell Flashlight: It is 3 D-sized battery powered high performance flashlight. With a cool dimension of 12.3 x 1.6 x 2.2 inches, it generates 3-watt power which comes with shock and water proof aluminium alloy metal body. Makita LXLM03 18-Volt LXT Li-ion flashlight: With the power of Lithium ion battery, this is the slimmest folding flashlight powered by 12 high-end LEDs. With its 360 degree rotating lighting panel, it generates maximum 240 lumens of light intensity which is operated on 18 volts.\nLE adjustable focus CREE LED: with adjustable beam focus, this flashlights is powered by 3 AAA size battery which gives 140 lumens of super bright light intensity. With it’s only 4.29 inch size, it becomes the most handy flashlight easy-to-handle must haves. Metallic body gives shock and water proof user experience.\nCoast HP3 Inspection Flashlight: This is a pen sized 1 AAA battery operated LED inspection flashlight. With twist focus mode, this model of LED flashlight generates 80 lumens of light intensity with its Pure Beam Focusing Optic System. With it’s no slip pocket clip, it gives a cool look in your pocket. When it is clipped in your pocket, it never feels like you are carrying a light system all the time, because of it’s pen-like look.\nTherefore, considering the look, size, power and performance, these are the most highly rated flash lights in the 2018 market.","domain":"optical_engineering"}
{"url":"http://it.jrt-measure.com/industry-information/widely-used-of-laser-distance-module-sensor-9097/","date":"2019-08-24T04:50:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027319724.97/warc/CC-MAIN-20190824041053-20190824063053-00036.warc.gz","language_score":0.9269173741340637,"token_count":157,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__36436829","lang":"en","text":"Recently, Russian scientists used laser technology to create a new optical biosensor. Compared with traditional sensors, its sensitivity has been greatly enhanced, can be used to detect bacteria and viruses, especially suitable for use in high-traffic scenarios, such as the airport.\nThanks to the grating-like structure of a silver film, infrared light is regularly distributed over its surface as it passes through the sensor. As the light intensity becomes higher, the microwell will turn into a hot spot. The microorganisms contained in the biological material effectively fill the pores and adsorb the hot spots, thereby increasing the probability of detection. The researchers said: \"With this technology, optical biosensors can be used to detect individual bacteria, which can be very helpful in disease prevention and rapid diagnosis.\"","domain":"optical_engineering"}
{"url":"https://www.ghgraham.com/product-page/clan-fraser-culloden-moor-inverness-shire-framed","date":"2023-10-02T04:50:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510967.73/warc/CC-MAIN-20231002033129-20231002063129-00063.warc.gz","language_score":0.9352171421051025,"token_count":141,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__110516604","lang":"en","text":"Square prints up to 6\" x 6\" are developed on Fuji Crystal Archive lustre paper & are single mounted behind a 1.4 mm crisp, smooth white archival board.\nSquare prints larger than 6\" x 6\" are developed on Kodak Endura Professional metallic paper & are double mounted behind two sheets of 1.4 mm archival board.\nWe use \"Superclear\" as standard; a specialty white water glass from Germany. It is optically coated on both sides to reduce reflections by over 90% & reduce damaging UV light transmission also by over 90%.\nEvery print is titled on the mount, regardless of size or finish.\ntop of page","domain":"optical_engineering"}
{"url":"https://www.versummaterials.com/semiconductor-solutions/industries-served/ledcompound-semi/","date":"2020-10-21T07:57:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107876136.24/warc/CC-MAIN-20201021064154-20201021094154-00425.warc.gz","language_score":0.8890758752822876,"token_count":110,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__199314223","lang":"en","text":"Materials for the LED Industry\nBrighter LEDs. Lower costs.\nImprove your chances for success in today’s LED market. Versum Materials is a leading supplier of ultra high-purity white and blue ammonia to make the brightest LEDs possible, as well as high-purity materials for Metal-Organic CVD (MOCVD) and thin-film deposition. Coupled with our GASGUARD® Gas Delivery Systems and MEGASYS® Total Gas and Chemical Management Service, we have your LED manufacturing needs covered.","domain":"optical_engineering"}
{"url":"https://bestfisheyelenses.review/life-after-fisheye-lens-what-you-should-do-to-find-out-about-fisheye-lens-before-youre-left-behindreality-is-that-fast-focusing-isnt-very-important-to-the-majority-of-people-utilizing-this-len/","date":"2019-08-18T14:55:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313936.42/warc/CC-MAIN-20190818145013-20190818171013-00413.warc.gz","language_score":0.9390836954116821,"token_count":651,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__203910786","lang":"en","text":"What You Should Do to Find Out About Fisheye Lens Before You’re Left Behind\nEnsure the lens works with your camera. The exact same camera with assorted lenses can provide you a bit of assistance with seeing the distinction plainly. Just because a lens is a great choice topside doesn’t signify it is the ideal choice underwater. For any critical macro work, you want no less than a 105mm macro lens. Another way of reducing noise isimage stacking and can be quite effective when you’re lens limited. It is a specialty lens and you ought to secure each of the essentials from the way before you think about purchasing it.\nSooner or later, even though it isn’t perfect, I can suggest the lens to anybody searching for an inexpensive choice for a fisheye lens. Used skilfully such a lens can open up unique, creative vistas along with having the ability to function as an ultra wideangle lens, as a result of how the lines in the middle of the image aren’t deformed. There are two main forms of fisheye lens.\nLenses can be a rather personal selection. The lens comes with a timeless AF micro motor that’s surely well sufficient for this lens. Note that all these lenses will often be less expensive lenses. A fisheye lens gives everything an entirely different look because of their design. The main reason for this is the fact that it is simply not a really practical lens to use everyday on account of the fisheye effect.\nYou are able to choose to get a branded item or can choose to find the generic lens hood readily available on the market. Obtaining a camera lens hood is an excellent move to be certain that the extra light is going to be cut off and be prevented to join the camera lens. There are plastic, rubber and metallic camera lens hood you may pick from.\nFull-frame fisheye pictures, however, can look quite conventional because of their rectangular look, instead of circular fisheye images. Consequently, the image appears relatively sharp even with the modest grade of the encoding. You’re able to carry it to take the skilled images everywhere.\nFinally, if you think this is a lens you are going to be using regularly, you won’t be let down with the results from the Sigma. Lenses might not be something they need to stress over yet, especially in the event that they’re simply beginning. Various lenses are appropriate for distinct functions. Once you’ll begin using 220Lens lenses, you’re step into an entirely new experience! If you are searching for fast zooming lens you’re going to be making the most suitable choice with the Sigma.\nMirror telephotos supply a cheap different choice for costly long lenses. The lens has turned out to be exceptionally dependable and durable. A zoom lens is one which offers a variety of focal lengths. If you presently have one of the more affordable zoom lenses on your Canon DSLR, investing within this lens will bring a large boost boost in image quality, and of course the additional portability that it also offers.","domain":"optical_engineering"}
{"url":"https://www.variolasnl.com/snl","date":"2023-12-08T06:27:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100724.48/warc/CC-MAIN-20231208045320-20231208075320-00615.warc.gz","language_score":0.716760516166687,"token_count":354,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__76935870","lang":"en","text":"The Surface Nanoengineering Lab (SNL) features a state-of-the-art equipment for the characterization of materials and biological response at the micro- and nanoscale. It consists of a confocal Raman microscope integrated with an Atomic Force (AFM) and a Near-Field Optical (NSOM-SNOM) microscopies. In addition if features a FTIR spectrometer and equipment for cell cultures.\nWITec 300 RSA confocal Raman, AFM and SNOM microscopy system\nModes: Raman spectral imaging, micro-Raman, 3-D confocal Raman imaging, confocal laser scanning microscopy (reflection and transmission), NSOM-SNOM (contact and AC, reflection and transmission), AFM (contact, lateral force, AC, digital pulse force - DPF)\nLasers: 488 nm (50 mW), 532 nm (50 mW), 633 nm (35 mW), 785 nm (150 mW)\nAccessories: Total internal reflection (TIR), heating stage, active vibration isolation system\nZeiss Axio Lab A1 microscope\nFor brightfield and fluorescence imaging\nThermo Nicolet Nexus 870 FTIR spectrometer\nFrequency Range: 400-12000 cm-1\nSpectral Resolution: 0.125 cm-1\nBeamsplitters: KBr (375 - 7000 cm-1)\nAccessories: Smart SAGA™ (Specular Apertured Grazing Angle), Smart ARK ™(Attanuated Total Reflencance).\nCell cultures and biological assays\nThe SNL also offers a basic setup for cell cultures and biological assays.","domain":"optical_engineering"}
{"url":"https://investeringarprsx.web.app/20392/81377.html","date":"2023-10-03T11:39:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511075.63/warc/CC-MAIN-20231003092549-20231003122549-00066.warc.gz","language_score":0.8692442178726196,"token_count":1507,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__233509399","lang":"en","text":"OTDR, short for optical time-domain reflectometer, is an optoelectronic instrument used to characterize an optical fiber. It can be considered as the optical equivalent of an electronic time-domain reflectometer. OTDR injects a series of optical pulses into the fiber under test.\nRayleigh scattering is an irregular OTDR (Optical time-domain reflectometer) is traditional fiber optic test equipment used to characterize fiber optic. It is most easy to use but the OTDR is also one of The increasing use of optical fibers for worldwide communications is spurring development of optical time-domain reflectometer (OTDR) applications. Evolving OTDR Testing. An Optical Time-Domain Reflectometer or OTDR is a sophisticated test instrument used to probe the characteristics of long optical fibers. 29 Nov 2011 An OTDR launch fiber, often available on a small spool or within a “launch box”, is used to create the proper conditions for testing another similar Today, the OTDR is mainly used in counter-propagating direction of the data traffic for live monitoring.\n- Mönsterskydd lag\n- Rita online\n- Hvad betyder jahve\n- Magnus becker frederiksen\n- Lidingö stad torsviks skola\n- Motoriska grundformer\n- English di hindi\n- Saltatorisk retledning\nAdditionally, they detect, locate, identify and measure optical components in installed networks including fusion splices, optical connectors and PON splitters as well as faults such as breaks or tight bends causing high loss. OTDR users generally used the two-wavelengths provide the best balance of functionality and value. OTDR testing at 1310 nm and 1550 nm is normally sufficient to certify point-to-point or FTTx PON fibers and allows the detection of macro bends. Very easy for the detection of macro bends at the OTDR wavelength 1310 nm and 1550 nm. What Is OTDR? , Article About What Is OTDR?\nOTDR tests will generally not correlate with LSPM tests (or often with other OTDRs!) which test the cable plant more like how the cable plant is used by communications equipment, and usually OTDR results are lower, setting up the network owner for a problem when the communications electronics are installed.\nConnector Types. Connectors are used to link fibers together. Moreover, they must ensure a low loss even after a 566 results Find your used OTDRs at used-line.com, the Online Marketplace for used T&M equipment.\nFiber optic cables are used by telecommunications companies to transmit Optical Fiber Ranger OTDR Principle Tester Meter FTTx Network FTTH Tool Kit VFL\nCEL switches are used for diverse applications such as WLAN, mobile laser and Avalanche Photo Detectors (APD) for OTDR applications which are cost Multi-fiber connectors contain “keys” which maintain defined fiber polarity when the connectors are mated together. MPO / MTP® adapters We performed experiments and practical exercises where we used materials in our systemets kapacitet utförde vi experiment med RISE Acreo phase-OTDR. You will learn how to use advanced Dense Wavelength Division Multiplexing (DWDM) features such as G.709 encapsulation, generic framing protocol G.7041, Dualcomm ETAP-2003 is a Network Tap for use with a single 10/100/1000Base-T Ethernet link.\nAn Optical Time-Domain Reflectometer or OTDR is a sophisticated test instrument used to probe the characteristics of long optical fibers. 29 Nov 2011 An OTDR launch fiber, often available on a small spool or within a “launch box”, is used to create the proper conditions for testing another similar\nToday, the OTDR is mainly used in counter-propagating direction of the data traffic for live monitoring.\nBusiness statistics course\nYou can also use it to verify splice loss (but test both ways and average to get a reliable measurement) or find … A fully automatic OTDR automates the test to the same level as a copper field tester, using internal expert diagnostics to interpret all the information from the OTDR test, and presents the results in a simple, easy-to-understand table. Everyone’s an expert. … 2021-04-08 In a long outside-plant cable with many splices, the OTDR is used to ensure the cable has not been damaged during installation and that each splice is properly made.\nHigh-gain light detectors measure any light that is reflected from each pulse. The OTDR uses these\n2014-06-25 · OTDR stands for Optical Time Domain Reflectometer.\nvill inte bli sjuksköterska\nOriginal 5.7'' Inch LCD Screen for YOKOGAWA OTDR ANDO AQ1200 OTDR LCD Display Electronic Components & Semiconductors LEDs, LCDs & Display\nIt uses optical time domain reflectometry technology. The purpose of an OTDR is to measure elements at any location of a fiber optic cable. It only needs one end of the cable in order to measure its elements. 2019-01-30 An OTDR is most commonly used during installation acceptance and maintenance of outside plant cables. In this role, it is likely to be used to identify point losses, the length of various cables, and to measure return loss.\nWhat is an OTDR? It is a fiber optic instrument used to characterize, troubleshoot and maintain optical telecommunication networks. OTDR testing is performed by transmitting and analyzing pulsed laser light traveling through an optical fiber.\nIf you made measurements and obtained the attenuation for the entire Overview OTDR - Optical Time Domain Reflectometer . An Optical Time Domain Reflectometer (OTDR) is an important instrument used by organizations to certify the performance of new fiber optics links and detect problems with existing fiber links. Why do I use an OTDR? Use the OTDR for troubleshooting. If you have a cable break, especially in the outside plant, the OTDR is the best way to find it. You can also use it to verify splice loss (but test both ways and average to get a reliable measurement) or find … A fully automatic OTDR automates the test to the same level as a copper field tester, using internal expert diagnostics to interpret all the information from the OTDR test, and presents the results in a simple, easy-to-understand table.\nAn OTDR is an extremely valuable tool when you are trying to characterize optical fibers. OTDR 13 Jun 2015 It can also be used to locate faults, such as breaks, and to measure optical return loss. There are four types of OTDR, they are Full-feature OTDR, Learn key info on OTDRs and guidance to newcomers in the telecoms fibre optic market for selecting an OTDR At the time fiber-optic networks are installed for trunk lines connecting large cities, the Optical Time Domain Reflectometer. (OTDR) must have a high dynamic Optical Time Domain Reflectometers (OTDR) - Leading solutions in optical and OTDR testing from the experts in OTDRs.","domain":"optical_engineering"}
{"url":"https://expatlifeindonesia.com/fujifilm-releases-100-megapixel-infrared-camera/","date":"2024-02-28T22:14:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474746.1/warc/CC-MAIN-20240228211701-20240229001701-00709.warc.gz","language_score":0.9123436212539673,"token_count":316,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__194663821","lang":"en","text":"Fujifilm launched a special 100 megapixel GFX100 infrared version. This camera is designed for forensic, scientific and cultural preservation applications.\nFujifilm said the GFX100 IR can be used to identify fake documents and analyze pigments in paintings or historical documents.\n“With different IR filters in front of the lens, the photographer can make use of different wavelengths of light to reveal hidden details. In addition, using an appropriate IR cut filter allows the GFX100 IR to be used normally, the same as the standard version of the GFX100 camera for rendering normal color images in the visible spectrum, “Fujifilm explained as quoted by Engadget.\nThis Japanese camera company has not disclosed the price for the camera. However what is clear, this camera will only be distributed in a limited manner through certain retailers.\nApart from announcing a new model, Fujfilm also launched a firmware for the GFX100 which introduces a new feature called the Pixel Shift Combiner. This firmware update combines 16 RAW images into one 400 megapixel image, if 100 megapixels are still not detailed enough.\n“For those who work in the field of archiving or cultural preservation, this new function is valuable especially for photographers documenting historical artifacts or large works of art, as it can be preserved digitally at 400 megapixels,” Fujifilm wrote.\nThis feature will also work on the newly released GFX100 IR camera, combining the scientific potential of infrared with ultra-high resolution imaging.","domain":"optical_engineering"}
{"url":"http://sackstark.com/store/product_info.php?cPath=2&products_id=65","date":"2019-07-17T22:25:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525414.52/warc/CC-MAIN-20190717221901-20190718003901-00318.warc.gz","language_score":0.8738164305686951,"token_count":782,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__163865229","lang":"en","text":"If you're looking for a way to capture and save your favorite images from the moon, stars, planets, or galaxies, then you've found the right product.\nAstronomer’s new best friend\nThis easy to use digital eyepiece for telescopes connects to the USB port on your computer and gives you a real-time image from your telescope - directly on your computer screen! This is the best way to view high resolution images of the moon, stars, sun, solar systems and more, and without having to bend over your telescope and squint with one eye to enjoy the heavenly attractions. If you own a telescope then this digital eyepiece will make using your telescope easy and fun again for the whole family.\nHigh Quality Images\nThe image quality of this digital eyepiece is simply amazing too. This is because the Digital Eyepiece uses a 1/2 inch 1.3 megapixel image sensor for delivering high image quality and remarkable detail like you have never seen before. Included with this digital eyepiece is a DVR software kit for recording those beautiful images in 1280 x 1040 video or photos. This makes sharing your high resolution images with your friends, family, or the internet, easier and more enjoyable than ever.\nEasy and Convenient to Use\nYou don’t have to be an astronomer to use it either. With the easy setup and user friendly software, even children can get in on the action. Simply attach the eyepiece to any telescope, attach the USB cable to your computer, open the included DVR software, and position your telescope like you would normally. That’s it! You can now, view, record and capture all your favorite celestial bodies from the comfort of your own home. The best part of it all is that unlike a traditional eyepiece, all your friends and family can actually view the same images from the telescope at the same time.\nThis digital eyepiece for telescopes is built using high quality components.\nAt a Glance...\n- Attaches to any telescope\n- Easy for anyone to setup and use\n- Save 1280 x 1040 video or photos to your computer\n- View the moon, stars, planets, and more from your computer\n- Product Description: Digital Eyepiece for Telescope - for viewing and recording via computer\n- Imaging Sensor: 1/2 Inch 1.3 Megapixel CMOS\n- Pixel Size 2.8μm * 2.8μm\n- Connection to Telescope: Ocular tube\n- Size of Ocular Tube: 17mm, 25mm and 30mm (using included adapters)\n- Still Image\n- Format: JPEG, BMP\n- Resolution: 1280 x 1024\n- Format: WMV\n- Resolution: 1280 x 1024\n- FPS: 16 frames per second\n- Sensitivity: 1.0 V/lux-sec\n- Spectrum response 400nm - 1000nm\n- White Balance: Auto\n- PC Interface: USB 2.0\n- Shutter: ERS (electronic rolling shutter)\n- Power Source: USB port of computer\n- Dimensions: L: 65 x Diameter: 65 (mm)\n- Compatible Systems: Windows 2000, XP, Vista, 7 (32 bit version only)\n- Fits 17mm, 25mm and 30mm (using included adapters)\n- USB digital eyepiece\n- USB cable -1.5m\n- 2 adapter rings\n- CD with manual, drivers and software\nFAQ - Frequently Asked Questions\n- Can I use this with my Linux, MAC or Windows 7 computer?\nThe eyepiece itself is a standard USB 2.0 camera which has drivers all over the internet. So if you are an experienced computer user you can get this product to work with any Operating System.","domain":"optical_engineering"}
{"url":"http://www.rajaneyecare.com/what-we-do/lasik-refractive-surgery/","date":"2023-09-26T14:49:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510214.81/warc/CC-MAIN-20230926143354-20230926173354-00893.warc.gz","language_score":0.9472789764404297,"token_count":514,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__105782526","lang":"en","text":"A refractive error is a very common eye disorder. It occurs when the eye cannot clearly focus on images. The result of refractive errors is blurred vision, which sometimes is so severe that it causes visual impairment.\nThe three most common refractive errors are\nApart from the above is the occurrence of Presbyopia, which leads to difficulty in reading or seeing at arm’s length. It differs from the other disorders in that it is linked to ageing and occurs almost universally.\nManufactured in Switzerland, the Alcon Wavelight Refractive Suite represents the most highly advanced technology. It transmits laser pulses at a considerably denser rate than other femtosecond laser equipment. For this reason, the energy used to make the flap as well as the spot size are significantly smaller than with other femtosecond-based lasers. Due to its low amount of energy, side effects and mechanical tensions on the cornea are as minimal as possible.\nContoura Vision is one of the most advanced technology in Laser Vision Correction. Apart from correcting the Specs power, Contoura vision also corrects the corneal irregularities while working on the visual axis. Hence it provides sharper visual outcomes.\nThe inclusion of Femtosecond lasers in refraction error surgery has raised safety to a whole new level, because the flap is no longer required to be made with a mechanical razor (blade), as was the case in the older technology represented by LASIK operations. This is an outpatient procedure and does not require hospitalization. Topical anesthetic drops are used and the patient is awake during the entire procedure. Near to normal sight capacity is restored and the patient can enjoy the results the very same day following the surgery.\nThe surgeon uses FS 200 LASER aided by a computer software to guide the laser beam, which passes into the cornea and pulses a pattern of tiny overlapping spots. This pattern results in a precise cut of the cornea at a depth determined by the surgeon. As with a mechanical Microkeratome, a small section of tissue at one edge of the corneal flap is left uncut, forming a hinge that allows the surgeon to fold back the corneal flap and reshape the corneal bed with the Excimer laser as in traditional LASIK.\nThe Femto LASIK surgery doesn’t require hospitalization. The eye to be operated will be anesthetized using eye drops. The surgery takes only a few minutes and doesn’t involve pain.","domain":"optical_engineering"}
{"url":"http://www.chinazhuoyou.com/content-86-192-1.html","date":"2020-02-24T23:27:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145989.45/warc/CC-MAIN-20200224224431-20200225014431-00306.warc.gz","language_score":0.6624100804328918,"token_count":388,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__124943721","lang":"en","text":"Direct lighting: refers to the light source with 90-100% of the amount\nof light. Directly projected to be as an object, only 0-10% of the\namount of light ?projected into the culture and the top surface, reflect\nto the object way of lighting.\nHalf direct lighting: refer to 60-90% of the amount of light projected onto the object clothing. And the rest of the 10-40% of the light projected onto the object table again after reflection. This kind of lighting form a touch refers to the chimney top small opening, the Po open big desk lamp and chandelier.\nHalf indirect lighting: refers to a 10-40% of direct illuminate light, 60-90% of the light reflection to be as objects. This way can produce a special lighting effect, suitable for the hall, corridor into the learning environment of lighting needs.\nIndirect lighting: refers to the direct light have 0-10%, 90-100% of the indirect light, such as chimney only open the top of the floor lamp, floor lamp, lamp, and other forms of all belong to this kind of lighting.\"\nNote that this way of lighting when used alone, the chimney of opaque lower produces a thick shadow. Need to use other types of lighting way to be reconciled. The adornment of indirect lighting are usually only used in office environment, in order to apply colours to a drawing the atmosphere of the environment.\nDiffuse lighting: refers to the amount of light light her honey haired 40-60 ya projected to be as an object, another 40-60% of the light is reflected after exposure to the object. The light brightness is poorer, but the light is soft, is a period of the frosted glass or half into the bright white plastic lamp shade, such as ordinary office decoration chandeliers, wall lamp, etc.","domain":"optical_engineering"}
{"url":"https://hausmaus.top/top-10-cctv-outdoor-camera-uk-outdoor-security-lighting/","date":"2024-04-13T13:47:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816734.69/warc/CC-MAIN-20240413114018-20240413144018-00899.warc.gz","language_score":0.8701634407043457,"token_count":1324,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__129299002","lang":"en","text":"Tosuny#ad - Die-cast aluminum alloy shell, strong heat dissipation, IP66 waterproof grade, not afraid of outdoor installation. Angle adjustable: with bracket, allows to adjust the mounting angle at will, meet your differend needs.\nLight control: it does not work when the light brightness is strong during the day, and automatically turned on when the light brightness is weak at night. Quality material: premium aluminum substrate, fast thermal conductivity, which is stable and has longer life.\nIf you have any queston about this product, please contact us and we will do our best effort to serve you.\nGood lighting effect: 15cs high-power infrared lights, 15W output power, greatly improve the night vision effect of the camera, and the effective irradiation distance is 20M.90 degree wide angle: wide angle ir lights, better light up your camera’s viewing range, and provide you good night vision image, match your wide angle security cameras perfect.\nDMetric#ad - Easy to install - the lamp came with a U stander, it can be installed directly with screws on the rods or mounting surface through the stander holes. Best work with IP cameras and CCTV cameras.\nAutomatically turn on / off - built-in light sensor and cds, the IR illuminator will automatically turn on at nightavailable light lower than 10LUX and turn off at daytimeavailable light higher than 10LUX.\nGreatly improve the performance for night vision cameras - Low power dissipation, long life LEDs. The ir illuminator will help producing better image at night and darkness. Waterproof ip65 housing - high quality aluminum case and reinforced glass structure, ideal for both outdoor and indoor use. Wave length 850nm infrared light - The beam lights is INVISIBLE to naked eyes but give a red glow.\nArlo#ad - Motion alerts: get alerts sent straight to your phone if motion is detected so you can quickly react to whats happening at home - wherever you are. 4k video with hdr: zoom in up to 12x to see sharp details with Arlo Ultra’s 4K & HDR advanced image quality technology.\nAuto zoom and tracking: Digitally auto-focus and follow moving objects so you don't miss important activity. Integrated spotlight: Scare off unwelcome guests using Arlo Ultra’s motion-activated spotlight. Enhanced night vision: Color night vision lets you see key details even in the dark.\nTonton#ad - You’ll get full package includes infrared illuminator, 12V/1A adapter, installing screws and user manual. Premimum structure and materials- use epistar led light source, reinforced glass window, stainless steel screws, heavy duty aluminum housing and thick heat sink, It’s good for both indoor and outdoor use.\nThe waterproof level is IP66. Please make sure that your camera is work with 850nm ir light before buy. Please search asin B07D6J2FGDon Amazon. 90 degree wide angle- it’s real wide angle ir flood, and provide you good night vision image, better light up your camera’s viewing range, no light spot, suitable for outdoor and indoor use.\nAutomatically on and off- photocell sensor was built in, the ir illuminator automatically switch on at dusk and switch off at dawn, it’s energy saving style.\nInstallation- please install the ir light beside the camera and point the same direction as your camera. Wave length 850nm infrared light, improves compatible camera image quality in low-light situations and in complete darkness. Note:this light comes with 3m power cable, if you need more longer power cable, please buy the Power Extension Cable 10m.\nBewinner#ad - Wide range of lighting coveragebuilt-in 15 high-power LED lights, adjustable luminous angle from 8 to 90 °, high efficiency, and a large lighting coverage, perfect to solve your various lighting needs. This product comes with a U-shaped bracket, which can be placed directly on a flat surface or through a fixed rod.\nBuilt-in light sensor switch the application of light sensor on the product, Bewinner IR Illuminator will automatically turn on at night and turn off during the day.\nScrew it directly to the rod or mounting surface. Installation is simple and convenientbewinner ir illuminator is about 19. 8 * 15. 8 * 5cm / 7. 8 * 6. 2 * 2 inches, which is portable enough.\nThis product has a high-conductivity aluminum substrate, fast thermal conductivity and strong heat dissipation to make it more stable and longer life. The waterproof rating is up to ip67this product is made of die-cast aluminum alloy, with high-quality tempered glass windows and Durable metal shell, so it can be used worry-free even in the rain outdoors. Long sevice lifeled lights can have a service life of more than 10, 000 hours.\nKKmoon#ad - Aluminum outer skin, excellent heat exchange. Strengthen glass and IP65 waterproof grade, suitable for use both indoor and outdoor places. 96pcs infrared lamps, provide strong light for CCTV Camera when the environment getting dark.\nArlo#ad - Smart subscription and unlock, 30-day cloud recording, advanced detection and customised activity zones. Arlo smart: your arlo essential spotlight comes with basic motion notifications and live video streaming; for more enhanced security, pair your camera with a monthly.\nDefy the elements: Built to withstand rain, snow, cold and sun for reliable protection. Two-way audio: hear and speak to visitors using the built-in speaker and microphone via the Arlo app from wherever you are.\n360-security: use the arlo essential cameras alongside other Arlo surveillance cameras, video doorbells and floodlights to deliver all round property protection.\nColour night vision: Integrated spotlight for colour night vision or black and white. Simple installation: 100 percent wire-free the Arlo Essential is simple to install in a range of locations. Instant notifications: Connect to the Arlo app and receive instant alerts to your smartphone when motion is detected.\nBW#ad - Auto power-on sensor- only turn-on when the surrounding is dark. 100% brand New. Use with night vision surveillance cameraBetter effect can be achieved with illumination intensity less than 0001 lux.","domain":"optical_engineering"}
{"url":"https://eyeopener.com.au/services/oct-scanning/","date":"2022-05-23T22:05:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662561747.42/warc/CC-MAIN-20220523194013-20220523224013-00440.warc.gz","language_score":0.9252538681030273,"token_count":464,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__32474391","lang":"en","text":"Optical Coherence Tomography scanning can detect early onset signs of retinal conditions such as macular hole, macular oedema, diabetic retinopathy, and age-related macular degeneration.\nOptical Coherence Tomography\nSince many retinal diseases involve the macula, this assessment has become essential in treating retinal diseases such as macular degeneration, diabetic retinopathy, and retinal vein occlusions.\nWhat Is Optical Coherence Tomography (OCT)?\nWith OCT, we can see each of the retina’s distinctive layers. This allows us to map and measure their thickness. These measurements help with diagnosis. They also provide treatment guidance for glaucoma and diseases of the retina. These retinal diseases include age-related macular degeneration (AMD) and diabetic eye disease.\nWhat to expect from an OCT Scan\nAt the start, you will be seated directly in front of our state-of-the-art OCT equipment. During the entire test, you will keep your head still with your chin resting on the chin rest and your head firmly against the instrument’s head band. You can blink normally. It takes a few minutes to acquire the images.\nWhen the examination begins, a blue cross will appear in the instrument. You will be asked to stare at the centre of the blue cross during the entire examination. Your Eye Opener examiner will move the instrument toward your eye without touching you. At a safe distance from the eye, we are able to produce a clear image of your retina or optic nerve head. A safe light beam scans the most important structures.\nAfter the examination\nAfter the examination, your vision will not be impaired and you can drive as usual.\nAre there any side effects of OCT testing?\nThe OCT is a non-invasive technology. It allows for the imaging of the retina without touching the eye. The only discomfort you may feel is a flash of light when the OCT records the scan of your eye. The testing takes only a few minutes and the results are available immediately, which allows the treating Eye Opener ophthalmologist to discuss the results with you and to provide the best treatment possible for your condition.","domain":"optical_engineering"}
{"url":"https://cloudbreaker.info/2015/03/03/reducer-spacer/","date":"2023-02-05T20:23:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500288.69/warc/CC-MAIN-20230205193202-20230205223202-00383.warc.gz","language_score":0.9223520755767822,"token_count":236,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__130720471","lang":"en","text":"The distance between the reducer and the camera plane is critical. My telescope is a Takahashi TOA-130. I will be matching it with the TOA reducer and SBIG-STT 8300M camera with an FW8G-STT filter wheel.\nMy Imaging train\nTOA-130 with The TOA-RF reducer backfocus\nThe first key number is calculating the backfocus distance. (more here)\nThe number I am looking for is 83.7mm, which is the optimal distance from the reducer to the CCD.\nSBIG STT8300M and FW8G-STT Spec backfocus\nFor details go here\nI am using 3mm filters so the back focus distance according to the chart is 52.5mm. SBIG technical support advised me to add 3.7mm for the mounting plate, The camera backfocus distance 56.2mm. A spacer is required between the focal reducer and the CCD.\nSpacer length = 83.7- 56.2 = 27.5mm spacer.\nTo build one go here.","domain":"optical_engineering"}
{"url":"https://galco.com/get/Triplett-Handheld-Tachometers","date":"2022-05-16T08:17:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662510097.3/warc/CC-MAIN-20220516073101-20220516103101-00614.warc.gz","language_score":0.9468143582344055,"token_count":132,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__259278550","lang":"en","text":"A tachometer is an instrument that measures the rotation speed of a shaft or disk. They are commonly used to measure the revolutions per minute of motors or other rotating machines.\nHandheld tachometers are generally classified as contact type meters, and can be held against a rotating shaft to determine speed. Other measurement methods available on handheld tachometers include laser and optical coupler.\nHandheld tachometers are frequently chosen when testing needs to be performed rapidly and often. Modern devices are sophisticated enough to measure up to 100,000 RPM and accurate within 6 thousandths of a percent. Other options are less accurate but can measure from several feet away.","domain":"optical_engineering"}
{"url":"https://www.colchestersun.com/through-the-looking-glasses/","date":"2018-10-23T09:22:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516123.97/warc/CC-MAIN-20181023090235-20181023111735-00504.warc.gz","language_score":0.959057092666626,"token_count":791,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__194113237","lang":"en","text":"Colchester resident Dr. Thomas Clark is improving people’s vision by looking at optometry with a different perspective, or through a different lens.\nClark, the optometrist at Williston Optometry, has two patents. Patented in 2009, the first is a measuring device for bifocals, and the second is a verification device. Together, they make what he coined as the “Clark Visual Axis Measuring System.”\nThe system is meant to make wearing bifocal lenses more comfortable for patients. It uses a different axis in the eye than the industry standard to measure a patient’s prescription to a more exact number, changing the process from subjective to objective.\nA patient lifts the patented prototype machine to his or her eyes and slides two panels to shift a circle into the middle of their line of vision, Clark demonstrated. The measurement it produces is used to calculate the prescription.\nClark investigated this new system because he saw a high number of patients who were unhappy with bifocals. Most patients didn’t know there was a better way to fix discomfort with their lenses.\n“You don’t know what you don’t know,” he said. “If you’re wearing the same pair of shoes for 10 years, you don’t know that there’s shoes that are three times more comfortable.”\nClark said the same thing goes for glasses. When patients take advantage of his system, 90 percent of them are satisfied, showed a study he conducted with 57 of his patients.\nThe number of people who come back for a second bifocal fitting also decreases with Clark’s system, as 65 percent of the patients studied adapted to their new bifocals in one day.\nAfter thorough research, Clark focused on a common biometric difference people have in their eyes called angle kappa, or the angle between two axes in the eye.\nMost people are unaware this issue exists, he said, so they have trouble with their bifocal prescriptions because other optometrists don’t take the angle kappa into account.\nOnce a patient is fitted using the measuring device prototype, the system’s second product is used: The verification device patented in August 2015.\nWhile looking at a measurement card, the device is used – a pair of glasses with a laser that marks a line on the card – to verify the measurement. If the patient does not have to shift his or head to get the laser to mark a line on the correct focal point, then the prescription is correct.\nIf a head shift does occur, then a segment placement error exists, and he re-does the measurement from step number one, he explained.\nThree eye doctors – two in the United States and one in Canada- are using Clark’s method. Clark is also in negotiation with individuals in China about manufacturing his system, he said.\nClark said he is the only one who has focused on the biometric issue because people assume the followed norm is correct.\n“There’s disconnect between what the optical lens people do and what the medical optometrist people do,” he said, noting that some people don’t understand the optics of how a lens is placed.\nClark usually places bifocals on people over age 40 who need a reading component to their glasses.\nKelly Quinlan, optician at Williston Optometry, attested that effectiveness and patient satisfaction has increased with the patents. She said many people have bad experiences with bifocal lenses and are surprised when Clark can correct their lenses.\n“You’re investing in a very expensive pair of lens, and if it’s not measured properly, you’re not going to get the benefits of it,” she said.","domain":"optical_engineering"}
{"url":"https://v2.iotone.com/case-study/smart-street-light-network-copenhagen/c242","date":"2024-04-13T19:21:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00307.warc.gz","language_score":0.9068400263786316,"token_count":174,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__179030307","lang":"en","text":"|[Efficiency Improvement - Energy]\nHighly efficient LED fixtures ensure energy savings and a better quality of light.\n|[Process Optimization - Remote Control]\nReal-time visibility, monitoring, and control improves asset and resource efficiency.\n|[Efficiency Improvement - R&D]\nOngoing application development and improvements are relatively quick and inexpensive to implement due to the system's flexibility.\nReplacing its high-pressure sodium lamps with highly efficient LED fixtures that not only provide a better quality of light but also ensure energy savings of 65%.\nRemote lighting management and control of 20,000 LED street lights throughout the city. The fusion of intersection-based occupancy sensors and light controls to sense an approaching bicyclist and provide extra light as they cross vehicle intersections.","domain":"optical_engineering"}
{"url":"https://sciencefiction.com/2015/11/29/near-future-may-able-see-infrared/","date":"2022-08-13T05:43:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571909.51/warc/CC-MAIN-20220813051311-20220813081311-00600.warc.gz","language_score":0.9542602896690369,"token_count":235,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__147129821","lang":"en","text":"Infrared headsets certainly look cool in movies, but what if we head the capability to forego the bulky headgear and just be able to see in infrared on our own? Sure, we’d have to be an alien like Predator at this point, but scientists at MIT may have found a way to create contact lenses that let you see in infrared.\nIn a paper published in ‘Nano Letters’, researchers suggest that using a graphene-based design, the technology used to make infrared goggles could be condensed into something as thin as contact lenses.\nGraphene is a modification of carbon where the atoms are aligned in a hexagonal lattice. (It looks like a honeycomb.) Graphene is very sensitive to the entire infrared spectrum.\nThe MIT scientists suggest that putting a layer of graphene on top of a silicon microelectromechanical system or MEMS (i.e. a really small technological device) could be a first step in creating infrared contact lenses.\nWhile this clearly has use in military applications, other occupations, such as firefighters, would be able to benefit from this technology as well.","domain":"optical_engineering"}
{"url":"https://www.bluecubedirect.co.uk/lt-led-colour-change-controls-control-panel-receiver-for-colour-changer-pre-2015","date":"2020-10-21T05:16:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107875980.5/warc/CC-MAIN-20201021035155-20201021065155-00121.warc.gz","language_score":0.8057562708854675,"token_count":112,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__184376093","lang":"en","text":"Control panel for colour changer lights pre 2015. The ultra bright lamp offers greater light intensity and better power efficiency than the standard unit. Thanks to a new optic the projection of light is maximised, making the most of its intensity and reducing light loss and light pollution to a minimum. Specifications:- power supply 12V AC. Power consumption 70W. Output 4320 lumens (almost 3 times brighter than the standard unit!)\nControl panel/receiver for colour changer pre 2015.\nControl panel/receiver for colour changer pool lights pre 2015","domain":"optical_engineering"}
{"url":"https://ngif.net/vision-scientific-vaf05-0-5x-barlow-lens-for-stereo-industrial-microscopes-48mm-suitable-for-vs-1f-vs-2f-vs-3f-vs-5f-vs-7f-vs-8f-vs-9f-series/","date":"2021-03-05T15:37:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178373095.44/warc/CC-MAIN-20210305152710-20210305182710-00172.warc.gz","language_score":0.8350291848182678,"token_count":230,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__185180505","lang":"en","text":"(as of Jan 10,2021 16:50:56 UTC – Details)\nThis is a brand new 0.5X Barlow (auxiliary objective) lens for stereo/industrial microscopes. It doubles the working distance and field of view of your microscope and cuts magnification power by half. This lens comes with a 1-7/8″ (48mm) mounting thread and goes with VS-1F/VS-2F/VS-3F/VS-5F/VS-7F/VS-8F/VS-9F series stereo/industrial microscopes.\nCutting magnification power by half and doubling working distance and field view of the microscopes\nMounting size: 1-7/8″ (48mm) in diameter\n- Just Love Solid Stretch Scrub Top for Women Mock Wrap Nursing Shirt - January 29, 2021\n- JUST MY SIZE Women’s Plus-Size Fleece Sweatpant - January 29, 2021\n- Amazon Brand – Daily Ritual Women’s Fine Gauge Stretch Long-Sleeve Cardigan Sweater - January 29, 2021","domain":"optical_engineering"}
{"url":"http://raybornlight.en.made-in-china.com/product/iSkJzodvlahF/China-Cheap-Price-Discount-20W-High-Power-LED-Flood-Wash-Light-Lamp-Outdoor-Waterproof-110-220V.html","date":"2017-10-20T10:52:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187824068.35/warc/CC-MAIN-20171020101632-20171020121632-00719.warc.gz","language_score":0.6772933602333069,"token_count":975,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__99799383","lang":"en","text":"Cheap Price Discount 20W High Power LED Flood Wash Light Lamp Outdoor Waterproof 110-220V\n|FOB Price:||Get Latest Price|\n|Min. Order:||500 Pieces|\n|Payment Terms:||L/C, T/T, Western Union, Paypal|\n- Model NO.: RB-FLL-20W1\n- Lamp Body Material: Aluminum\n- Projection Distance: 12-18m\n- IP Rating: IP65\n- Operating Voltage: 85-265V/12-24V\n- LED Chips Brand: Epistar\n- Transport Package: 8PCS/Box\n- HS Code: 9405409000\n- Color Temperature: Warm White\n- Power: 20W\n- Application: Park, Square, Factory, Garden\n- Certification: CE, EMC, LVD, RoHS, SAA\n- Input Voltage: 220V\n- Trademark: Rayborn\n- Origin: China\nLED Floodlight/Outdoor LED Flood lighting (10-200w)\nItem No.: RB-FLL-20W1\nInput Voltage: AC 85~265V/ 12V/24VDC/AC\nLED Power: 20W *1pcs\nLED Luminous Flux Warm White, Nature White, Pure White\nLED Flood light Viewing Angle: 120 degree\nColor Temperature Warm White 3000K~3500K\nNature White 4000K~4500K, Pure White 6000K~6500K\nLuminous Flux: 1720LM (warm white); 1760LM(nature white); 1800LM(pure white)\nColor Rendering Index: Ra≥ 78\nIP Grade: IP65\nBody Size: 180*140*100mm\nWorking Life-span: 50000 H\nThe color of the lamp shell Silver\nCertificate CE & RoHS\nLED flood light adopted optical light distribution, that is no glare, no light pollution, highly directional light and more even luminous beam.\n1, High bright imported single integrated(COB) LED chip as light source:\nLed flood light with good heat dissipation, low light depreciation, pure light color, no double-shadow High intensity, high resistance of shock or vibration etc.\n2, Universally wide range voltage(85-265V):\nLed flood light advanced constant-current driver be used which can start quickly, be high safety and reliability.\n3, Unique heat sink design:\nLed flood light perfectly combine with power box, effectively transmit the heat, thereby lowering the body's temperature, ensure the life of LED chip and power driver.\n4, Surface treatment:\nLed flood light static sprayed leading to better heat-resisting, high weather resistance, corrosion resistant, water proof and dust proof.\n5, All the leakage screw material is 304 stainless steel, and frame is hex screws.\n6, waterproof and dust proof:\nLed floodlight Sealed by reliable silicone rubber, can bear heat above 150, no aging, good sealing of lamp, waterproof and dust proof.\n7, Energy saving:\nLed floodlight use high power LED and it is equipped with imported high efficient power, save more than 70% energy compare with sodium lamp.\nWidely used in factory, gymnasium, billboards, buildings, lawns, landscaping, offices, the site of light project and decorative lighting project etc.\n1. CE & RoHS &TUV IP65 approved, Quality Guaranteed\n2. Imported original Cree & Bridgelux & Epistar chip, superior light source\n3. OEM & ODM welcome, independent R&D ability, patent design.\n4. Fast delivery, 3-15 workdays depends on order quantity after payment confirmed\n5. Reliable quality & credit, 3 years warranty and 50.000 hours lifespan\n|20W LED Floodlight Main Technical Parameters|\n|Input Voltage:||AC 85-265V|\n|LED Working Voltage:||DC 30~36V|\n|LED Luminous Flux||Warm White||1670LM|\n|Center Illuminance||2 Meter||178 lux|\n|3 Meter||85 lux|\n|4 Meter||46 lux|\n|Viewing Angle:||120 degree|\n|Color Temperature||Warm White||3000K~3500K|\n|Color Rendering Index||Ra>78|\n|Light Distribution:||LED points visible|\n|LED Junction Temperature:||≤115|\n|Working Life-span:||50000 H|\n|Power Line:||1.0 mthree line|\n|Yellow / Green||G|\n|The color of the lamp shell||Black is available|","domain":"optical_engineering"}
{"url":"http://bptautomation.co.uk/fundamentals-laser-cutting-need-know","date":"2019-04-25T02:15:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578678807.71/warc/CC-MAIN-20190425014322-20190425040322-00413.warc.gz","language_score":0.944117546081543,"token_count":329,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__67258448","lang":"en","text":"Getting an idea about laser cutting must start from the beginning, and the first thing to understand is that there are numerous types of industrial cutting machines. They are listed below:\n- Flying optics\n- Hybrid systems\n- Moving material\nVarious types of machines will be defined by the way the laser moves on the materials that it is performing on. Click here for information about laser cutting in Birmingham.\nFast, accurate and adaptable laser cutting machine\nFlying optic lasers’ most distinctive feature is the fixed table where the substances are set and the laser will be able to perform on the material that is set along both the X and Y axis. The material will remain stationary and the mirror is what moves. Ensure your machine is installed properly.\nThe advantage of this machine is that the motor is always moving a known fixed mass, making it easier to predict and control. As the material being lasered isn’t being moved, it means there is no limit to the weight of the sheet.\nHowever, the disadvantage of flying optics is related to the variation in beam size. A laser beam will never be perfectly parallel; however it will diverge slightly whenever it leaves the laser meaning there may be some sort of variation in cutting performance. Find out about manufacturers.\nHybrid laser cutting, high speed and discretion\nHybrid laser cutting machines are a mix between flying head and stationary head. The table will run on one axis, whilst the head moves along the other. The main advantage of hybrid devices is that they deliver a more precise and constant beam and are also more energy efficient than any other machine. See: Glasswork.","domain":"optical_engineering"}
{"url":"https://6ave.com/products/leica-q-typ-116-digital-camera-silver-anodized-standard-bundle","date":"2021-06-24T17:46:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488556482.89/warc/CC-MAIN-20210624171713-20210624201713-00049.warc.gz","language_score":0.8103163838386536,"token_count":303,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__37425681","lang":"en","text":"A no compromise compact, the Leica Q (Typ 116) Digital Camera wields a full-frame 24.2-megapixel CMOS sensor within its exceptionally portable, and beautiful, body. Leveraging the power of the Leica Maestro II series image processor, high-resolution, low-noise imaging is possible at sensitivities up to ISO 50000 and at a continuous rate of 10 fps. Also, the camera utilizes a Summilux 28mm f/1.7 ASPH. lens to allow users to dramatically separate the subject from the background as well as work in difficult light conditions.Bundle Items Include:Leica Q (Typ 116) Digital Camera (Silver Anodized)Carrying StrapLens HoodLens CapAccessory Shoe CoverBP-DC 12 Lithium-Ion Battery for Leica Q Typ 116 Digital Camera (7.2V, 1200mAh)Battery ChargerPower CableUSB CableMicrofiber ClothLens Cleaning Kit49MM UV FilterCarry Case64GB Memory CardMemory Card WalletUSB Card Reader\n- 24.2MP Full-Frame CMOS Sensor\n- Leica Maestro II Image Processor\n- 3.0\" 1.04m-Dot Touchscreen LCD Monitor\n- Full HD 1080p Video at up to 60 fps\n- Built-In Wi-Fi Connectivity with NFC\nPayment & Security\nYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.","domain":"optical_engineering"}
{"url":"http://www.andersongomes.com/research/index.html","date":"2015-07-05T13:16:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-27/segments/1435375097475.46/warc/CC-MAIN-20150627031817-00090-ip-10-179-60-89.ec2.internal.warc.gz","language_score":0.8792263865470886,"token_count":1347,"dump":"CC-MAIN-2015-27","global_id":"webtext-fineweb__CC-MAIN-2015-27__0__83769463","lang":"en","text":"The activities of the Laboratory of Optoelectronics and Photonics, as part of the Optics Group at the Physics Department of UFPE, started back in 1987, and the first laboratory was established in 1988, based on a Q-switched and mode-locked Nd:YAG laser, performing research in nonlinearities in optical fibers.\nThe present research activities are in the areas Nanophotonics, Biophotonics, Nonlinear Optics and Optical Communications.\nNanophotonics deals with the light-matter interaction at the nanoscale. Our present work focus on (a) studies of optically enhanced nonlinearities in nanostructured glasses containing silver, gold or rare earth doped ions; (b) studies and applications of random lasers exploiting dye embedded nanoparticles or nanostructured semiconductor materials and (c) fabrication and characterization of MOCVD grown semiconductor nanostructures.\nPictorial description of conventional lasers vs random lasers.\nTiO2- based nanomembrane Random Laser\n(Dominguez et al, Opt Express, 2012)\nColloidal RL emission.\nTop image: below threshold.\nBottom: above threshold.\n(from Lawandy, Gomes, 1994)\nBiophotonics research is a multidisciplinary theme and our work exploits imaging technologies applied to dentistry and dermatology, as well as Nonlinear optical methods, such as multiphoton induced absorption has also been used to study biomaterials. Detection of earlier caries is being evaluated using laser induced fluorescence, NIR transillumination and a major emphasis in optical coherence tomography (OCT) for non-invasive imaging. OCT is the main technique currently employed for dental materials characterization, besides clinical trials. The research has also been extended to nanobiophotonics, whereby the methods mentioned above are used in conjunction with nanoparticles to, for enhance, provide imaging enhancement.\nOCT image sequence of caries\nEvaluation in human tooth\n(Mota, DF/UFPE, 2009)\nIn figure we show an OCT image of the adhesion process on dentin using DBAs prepared with gold nano particles. The adhesion process regions are identified: adhesive layer (AL), hybrid layer (HL), and resin tags (arrows).\n(Braz, et al, JBO 2012)\nNonlinear Optics is a well-established field of research, and a subject that has been the flagship of the optics group in Recife since the late 70’s. Presently, our laboratory is geared to perform characterization of optical nonlinearities in photonicsmaterials such as polymer based nonlinear photonic crystals, hybrid quantum dot polymer nanocomposites and rare earth doped glasses. Available techniques include Z-scan, femtosecond resolved Kerr gate, upconversion spectroscopy, etc. The research includes development of new nonlinear optics characterization methods as well as the characterization of novel photonics materials e nanomaterials.\nThermally Managed eclipse Z-scan technique\nused to characterize nanomaterials\n(Gomes et al, Opt. Express 2007)\nTM EZ-scan characterization of 15 nm\nSize gold nanoparticles.\n(Romani et al. Opt. Express 2011)\nPHOTONICS DEVICES FOR OPTICAL COMMUNICATIONS\nOptical communications are the basis for all the information technology developed so far. Several photonics devices, such as optical amplifiers, diode lasers, optical switches, etc., are key elements for such development. We have carried out research in S/C/L band optical amplifiers, with emphasis is on S-band(1400 nm - 1530 nm) amplifiers. TDFA, Raman, Parametric Amplifiers and Hybrid Amplifiers were developed and characterized. Presently, our focus has been on femtosecond laser written channel waveguides for optical amplification and other applications.\nProfile of a fs laser written waveguide\nIn an Er-doped germanate glass.\n(da Silva et al, Opt Materials, 2011)\nSpatial profile of a waveguide written with fs-laser in sol-gel activated Er3+: SiO2-Ta2O5 glass ceramics\nOur research facilities comprises of a number of lasers sources and modern equipment for sources characterization and data acquisition, in the spatial, spectral and temporal domain.\nPresently the Lab occupies three rooms with 30 m2, and is equipped with laser sources covering the UV-NIR spectrum (discretely or continuously using a OPA), from nano- to femtosecond regime (fs Ti-sapphire laser, ps QS&ML Nd:YAG, ns Nd:YAG laser with infrared, second and third harmonic output, cw semiconductor lasers covering the near-infrared range (800 nm – 1600 nm), diode pumped Yt-lasers, diode pumped Raman lasers and dye lasers). Microwave generators (up to 20 GHz) for optoelectronics are also available.\nData acquisition equipment includes optical spectrum analysers, CCD coupled spectrometer (visible and NIR), ocean optics spectrometers, electrical spectrum analyzer (up to 44GHz), lock'ins, box-cars, real time autocorrelator, laser beam profile diagnostics and other diagnostics tools, all computer controlled. Other common facilities include absorption spectrometers (200nm to 3µm), waveguide characterization, SEM and AFM.\nThe laboratory also hosts a multiuser facility, the NanofemtoLab, consisting of a Coherent LIBRA regenerative amplifier delivering up to 1 mJ, 1 kHz, 80 fs pulses at 800 nm and a continuously tunable fs OPA. This is an open facility to researchers from Brazil or abroad.\nAmong the linear and nonlinear optical techniques available, we have exploited upconversion spectroscopy set up, Z-scan (and some varieties, such as thermally managed Eclipse Z-scan), Kerr gate, optical coherence tomography (at 800 nm and 1300 nm, home made and Thorlabs equipment), infrared transillumination, femtosecond writing, multiphoton fluorescence microscopy and facilities for setting up optical amplifiers for optical communications in the S, C and L bands.\nPartial view of the multiuser femtosecond facility, showing the\nRegenerative amplifier and OPA system.","domain":"optical_engineering"}
{"url":"https://www.zordis.com/members/jamesgrey98/activity/7539/","date":"2021-10-16T11:10:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323584567.81/warc/CC-MAIN-20211016105157-20211016135157-00002.warc.gz","language_score":0.8185161352157593,"token_count":700,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__28029348","lang":"en","text":"James Grey posted an update 1 week, 2 days ago\nGlobal Optical Imaging Market Size Study, By type, By Application and Regional Forecast to 2026\nBharat Book Bureau Provides the Trending Market Research Report on “Global Optical Imaging Market, By Technique, By Product By Therapeutic Area, By Application, By End-User, By Region, Competition Forecast & Opportunities, 2026” under Life Sciences Market Research Reports Category.\nGlobal Optical Imaging Market is expected to grow at a significant rate in the forecast period. Several optical imaging technologies are used as diagnostic procedures in ophthalmology sector. Rise in the aging population is the major driver as with old age immunity system and vision starts declining which requires external assistance and treatment.\nThe major players operating in the global optical imaging market are Abbott Laboratories Inc., Carl Zeiss Meditec AG, Koninklijke Philips N.V., Topcon Corporation, Canon inc., PerkinElmer, Inc., Leica Microsystems (Danaher corporation), Headwall Photonics, Inc., Optovue, Inc., Heidelberg Engineering, Inc., among others. Major companies are developing advanced technologies and launching new services to stay competitive in the market. Other competitive strategies include mergers & acquisitions and new service developments.\nYears considered for this report:\nHistorical Years: 2016-2019\nBase Year: 2020\nEstimated Year: 2021\nForecast Period: 2022–2026\nObjective of the Study:\n• To analyze the historical growth of the market size of global optical imaging market from 2016 to 2019.\n• To estimate and forecast the market size of global optical imaging market from 2020 to 2026 and growth rate until 2026.\n• To classify and forecast global optical imaging market based on technique, product, therapeutic area, application, end-user, regional distribution, and company.\n• To identify dominant region or segment in the global optical imaging market.\nKey Target Audience:\n• Optical imaging product manufacturing companies\n• Market research and consulting firms\n• Government bodies such as regulating authorities and policy makers\n• Organizations, forums and alliances related to optical imaging market\nIn this report, global optical imaging market has been segmented into following categories, in addition to the industry trends which have also been detailed below:\n• Global Optical Imaging Market, By Technique:\n– Optical Coherence Tomography (OCT)\n• Global Optical Imaging Market, By Product:\n– Imaging System\n• Global Optical Imaging Market, By Therapeutic Area:\n• Global Optical Imaging Market, By Application:\n– Pathological Imaging\n– Intraoperative Imaging\n• Global Optical Imaging Market, By End-User:\n– Hospitals & Clinics\n– Diagnostic Imaging Centres\n– Research Laboratories\n• Global Optical Imaging Market, By Region:\n– North America\n– United States\n– United Kingdom\n– South Korea\n– Middle East & Africa\n– South Africa\n– Saudi Arabia\n– South America\nBrowse our full report with Table of Content :\nAbout Bharat Book Bureau:\nBharat Book is Your One-Stop-Shop with an exhaustive coverage of 4,80,000 reports and insights that includes latest Market Study, Market Trends & Analysis, Forecasts Customized Intelligence, Newsletters and Online Databases. Overall a comprehensive coverage of major industries with a further segmentation of 100+ subsectors.","domain":"optical_engineering"}
{"url":"https://www.snewsnet.com/press-release/adidas-sport-eyewear-launches-zonyk-aero-midcut","date":"2020-02-26T16:29:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146414.42/warc/CC-MAIN-20200226150200-20200226180200-00299.warc.gz","language_score":0.8451201319694519,"token_count":458,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__103203912","lang":"en","text":"New York, NY - January 31, 2018\nWhether exploring mellow park trails or battling it out during a mountain ultra, the new zonyk aero midcut makes conquering any trail a breeze.\nThe newest addition to the adidas Sport eyewear line, the lightweight zonyk aero midcut has a stable fit and clear vision making it easier than ever to navigate sharp rocks, roots and loose debris.\nWith its ideally shaped lenses that offer a huge field of vision, even the smallest details are visible no matter how quickly you're moving.\nTo ensure the perfect vision, the lenses are customizable and available in a variety of options to match your needs: polarized, mirror, eye fatigue reducing LST, automatically tint adjusting VARiO, and brand new LST + VARiO combination.\nThe zonyk aero midcut is available in a pro version, which comes with a removable sweat bar that directs the airstream towards the inside of the filters, aiding the climacool ventilation system and helping to reduce lens fogging.\n- New specifically shaped lenses – for best possible trail running experience.\n- New LST™ bright VARiO purple mirror filter option – combining eye fatigue reducing LST technology with automatically adapting lens tint.\n- Quick-Change Lens System™ – quick and easy exchange of the lenses possible.\n- Two sizes – small and large frame option ensure best personal fit and comfort for men and women alike.\n- Traction Grip™ – perfect stability and comfort thanks to non-slip contact points on the temples.\n- Double-Snap Nose Bridge™ – comfortable fit and grip thanks to an adjustable nose bridge. Also includes additional extended nose bridge for individualization.\n- TRI.FIT™ three-position adjustable temples provide the best fit and minimize incoming wind and glare.\n- RX ready – accommodates all vision abilities with clip-in inserts.\nThe zonyk aero midcut pro is available in eight different color and filter combinations. MSRP starting at $209.\nThe zonyk aero midcut basic (without sweat bar) is available in twelve different color and filter combinations. MSRP beginning at $159.\nadidas Sport eyewear","domain":"optical_engineering"}
{"url":"http://www.sideshield.com/B22MHS.php","date":"2016-09-25T19:00:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-40/segments/1474738660342.42/warc/CC-MAIN-20160924173740-00141-ip-10-143-35-109.ec2.internal.warc.gz","language_score":0.6773787140846252,"token_count":312,"dump":"CC-MAIN-2016-40","global_id":"webtext-fineweb__CC-MAIN-2016-40__0__97371113","lang":"en","text":"How to Purchase\nLocate a Distributor\nMake a Request\nBecome a Distributor\nNeed to Know\nB-22 Safemate® Multi Hazard Shield (printable)\nThe B-22 SAFEMATE® MHS - Multi Hazard Shield™ packaging contains ten (10) pairs of B-22 SAFEMATE Universal Sidewear Shields and ten (10) sets of care and use instructions. The clam shell packaging is reseal able to keep product clean prior to dispensing and completely recyclable. The B-22 is available in ( c ) Clear, ( i ) Ice Blue, ( a ) Amber, ( s ) Grey and ( b ) Ebony.\nClear: allows maximum light transmission – applications indoor / outdoor where high light transmittance is needed.\nIce Blue: reduces glare while at the same time improves clarity and sharpness of vision. The blue lens blocks out yellow light while mitigating glare and eye fatigue.\nAmber: allows maximum light transmission - Improves contrast and gives a sensation of heightened visual acuity.\nGrey: provides light filtering protection from glare in outdoor or bright light environments - effective at blocking glare without changing color perception.\nEbony: completely opaque and effective at blocking visible light – mitigates impact of glare and visual distractions from the peripheral - appropriate only for lateral optical occlusion.\nPackaging label for the B-22 Safemate® Multi Hazard Shield\nPatent No.5,748,278,6,393,609 B1 and others","domain":"optical_engineering"}
{"url":"http://ultechspot.com/full-phone-specifications/samsung-galaxy-s6","date":"2018-02-24T01:53:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815034.13/warc/CC-MAIN-20180224013638-20180224033638-00239.warc.gz","language_score":0.8120964169502258,"token_count":281,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__168955637","lang":"en","text":"5.1\" Quad HD (2560 x 1440) Super AMOLED\nOcta-Core (pair of quad-2.1GHz processor with a quad-1.5Ghz) 64 bit\n3 GB of RAM and will available in three variants as 32/64/128 GB but No Memory Card Slot\n16 Megapixels with f/1.9 lens\nThe primary camera is capable of taking pictures at 2988 x 5312 pixels with Optical Image Stabilizer.\nIt also has Geo-tagging, touch focus, face detection, Auto HDR, panorama features.\nIt will also record at 2160p@30fps, 1080p@60fps, 720p@120fps.\nSecondary camera is capable of 1080p@30fps, dual video call, Auto HDR.\nYou can launch the camera by double tapping on home button as well. (Very good to have)\nNon-removable Li-Ion 2550 mAh battery\nWhite Pearl, Black Sapphire, Gold Platinum, Blue Topaz\n143.4 x 70.5 x 6.8 mm (5.65 x 2.78 x 0.27 in)\n1.15 W/kg (head) 1.16 W/kg (body)\n0.38 W/kg (head) 0.50 W/kg (body)","domain":"optical_engineering"}
{"url":"https://megacatch.com/uv-bulb-standard-ultra-premier-xc/","date":"2023-12-11T02:19:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103464.86/warc/CC-MAIN-20231211013452-20231211043452-00161.warc.gz","language_score":0.934312641620636,"token_count":150,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__126702100","lang":"en","text":"Mosquitoes can detect UV light from a distance of 100 ft. However, UV bulbs do dim over time becoming less effective and should be replaced every year.\nNB: The UV light wavelength is different to that emitted by the UV LED lights.\nPro 900 Series Ultra/Premier XC Traps and 800 Series Ultra/Premier Traps incorporate a low intensity UV bulb which emits light at a frequency our research has show to attract certain mosquito species. However, it can also attract small quantities of non-target species like moths.\nIf this is a problem the UV bulb can either be taken out (800 Series Premier) or switched off (800 & Pro 900 Series Ultra/Premier XC) by touching the UV Tube button.","domain":"optical_engineering"}
{"url":"https://sealantern.com.au/products/flame-angel-heads","date":"2017-05-22T15:29:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463605188.47/warc/CC-MAIN-20170522151715-20170522171715-00018.warc.gz","language_score":0.9380576014518738,"token_count":209,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__84858956","lang":"en","text":"It's a completely alien world down there.\nAlthough I sometimes wonder who the aliens are, we're entering into their world after we spit polish our masks.\nThey don't live by our rules, they don't communicate like we do, and they don't see what we see.\nThey got some pretty freaking awesome secrets, which you'll get a glimpse of under these wavelengths;\nActinic Blue Wavelength\nFluoresce and reveal colours not visible under normal light in some corals. For best results use a yellow filter over your camera lens to filter out excessive blue.\nTrue Red Wavelength\nMost creatures underwater cant see red. With a true red light, the creatures won't even know you're shining a light on them, giving you a chance to closely inspect their behavior or get your camera ready for a shot without spooking them off.\nIf using the red light to help your camera focus underwater, your main strobes will overpower the red light once fired, so you can leave it running continuously.","domain":"optical_engineering"}
{"url":"https://mrl.mit.edu/index.php/component/k2/94-photonic-integration-2035","date":"2021-11-28T14:54:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358560.75/warc/CC-MAIN-20211128134516-20211128164516-00443.warc.gz","language_score":0.9160732626914978,"token_count":711,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__9509055","lang":"en","text":"AIM Photonics participants to take long view at Roadmap Meeting at MIT March 26-27, 2018.\n|Tom Marrapode, Director of Advanced Technology Development at Molex Optical Solutions Group, speaks about work on board-level optical interconnects at the AIM Photonics Academy fall 2017 meeting. Photo, Melissa Renzi, SUNY Polytechnic Institute.|\nIndustry and academic leaders from across the country and around the world will gather at MIT on Monday and Tuesday, March 26-27, 2018, for the spring AIM Photonics Technical Roadmap Meeting, titled “Photonic Integration 2035: Economics, Technology and Manufacturing.”\nThis marks the 20th year that the Photonics Roadmap meetings have been held. Begun under the Microphotonics Center at MIT as gatherings of 50 experts, the Roadmap meetings have grown to more than 200 people representing the technology supply chain, from materials to systems to end-users.\n“This is the premier gathering of leaders implementing photonics technology,” says Professor Lionel Kimerling, executive of AIM Photonics Academy, which is the MIT-based education and workforce development arm of AIM Photonics. AIM Photonics is one of 14 public-private manufacturing innovation institutes created as part of a federal initiative to revitalize American manufacturing.\nParticipants will “gauge the system requirements and technology needs to maintain the ongoing exponential product ramp in the field,” Kimerling says. The March meeting includes time for breakout groups that focus on different technology areas covered in the Roadmap, where companies that normally compete against one another can participate in productive pre-competitive discussions.\n“I have been very engaged in AIM Photonics Academy’s Roadmap meetings and technical working groups,” said Yi Qian, vice president of product management at MRSI. “I want to be part of the discussion with some of the world’s top experts of where integrated photonics is headed.”\nAt the spring meeting, AIM Photonics Academy and the International Electronics Manufacturing Initiative (iNEMI) plan to incubate Application Interest Groups (AIGs) in sensors, data centers, analog RF signal applications, LIDAR and phased array imaging. These industry-led initiatives have the potential to turn into AIM Photonics-funded technical projects.\nThe Integrated Photonic Systems Roadmap (IPSR), which can be downloaded from the iNEMI and AIM Photonics Academy websites, is more than 400 pages long, and continues to be updated to include new chapters and findings. Close to 1,000 people from more than 300 organizations in 17 countries have participated in the creation of the Roadmap.\nAIM Photonics Academy and iNEMI are also collaborating on a Roadmap workshop at the Optical Fiber Communication Conference March 12, 2018, in San Diego. At that conference, Kimerling and Director of Roadmapping Robert Pfahl will discuss grand challenges and key needs for commercially viable, high-volume manufacturing of photonic-enabled functionality.\n– Julie Diop, Materials Research Laboratory, AIM Photonics Academy\nFebruary 26, 2018\n|Eindhoven University of Technology Professor Meint Smit speaks about “Photonic Integrated Circuits: How Foundries Transform Prototyping” during the spring 2017 AIM Photonics Roadmap meeting at MIT. Photo, Denis Paiste, MIT MRL|","domain":"optical_engineering"}
{"url":"http://sciencecentric.com/news/08012433-mercury-featured-in-colour.html","date":"2013-05-25T15:19:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705957380/warc/CC-MAIN-20130516120557-00065-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.907709002494812,"token_count":463,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__29278920","lang":"en","text":"One week ago, NASA's MESSENGER spacecraft transmitted to Earth the first high-resolution image of Mercury by a spacecraft in over 30 years, since the three Mercury flybys of Mariner 10 in 1974 and 1975.\nMESSENGER's Wide Angle Camera (WAC), part of the Mercury Dual Imaging System (MDIS), is equipped with 11 narrow-band colour filters, in contrast to the two visible-light filters and one ultraviolet filter that were on Mariner 10's vidicon camera.\nBy combining images taken through different filters in the visible and infrared, the MESSENGER data allow Mercury to be seen in a variety of high-resolution colour views not previously possible. MESSENGER's eyes can see far beyond the colour range of the human eye, and the colours seen in the accompanying image are somewhat different from what a human would see.\nThe colour image was generated by combining three separate images taken through WAC filters sensitive to light in different wavelengths; filters that transmit light with wavelengths of 1000, 700, and 430 nanometres (infrared, far red, and violet, respectively) were placed in the red, green, and blue channels, respectively, to create this image.\nThe human eye is sensitive across only the wavelength range 400 to 700 nanometres. Creating a false-colour image in this way accentuates colour differences on Mercury's surface that cannot be seen in the single-filter, black-and-white images released last week.\nThis visible-infrared image shows an incoming view of Mercury, about 80 minutes before MESSENGER's closest pass of the planet on Jan. 14, 2008, from a distance of about 27,000 kilometres (17,000 miles).\nImage sequences acquired through the 11 different MDIS filters are being used to distinguish subtle colour variations indicative of different rock types. By analysing colour differences across all 11 filters, the MESSENGER team is investigating the variety of mineral and rock types present on Mercury's surface. Such information will be key to addressing fundamental questions about how Mercury formed and evolved.\nMercury has a diameter of about 4,880 kilometres (3,030 miles), and the smallest feature visible in the colour image is about 10 kilometres (6 miles) in size.","domain":"optical_engineering"}
{"url":"http://www.lensrumors.com/leica/leica-v-lux-2-successor-on-the-way","date":"2013-05-23T12:02:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703298047/warc/CC-MAIN-20130516112138-00044-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9652272462844849,"token_count":182,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__45567277","lang":"en","text":"Leica’s Next Gen V Lux to Arrive Before Christmas\nLeica is expected to announce in the next few weeks the launch of the next V Lux camera (V Lux 3?). This comes after much speculation about when the camera would be released as the V Lux 2 was announced last year in late September. Panasonic just recently made an announcement for the FZ-150 camera. The FZ-150 predecessor (FZ-100) was used as the OEM to the V Lux 2, more evidence that the next V Lux is coming.\nThe shipments for Leica’s V Lux Successor are expected to be sent at the end of November and early December at the latest allowing Leica a small window to take advantage of the holiday season.\nFor all the Leica information and updates stay tuned to LensRumors.com as we’ll be bringing you all the news you need.","domain":"optical_engineering"}
{"url":"https://www.rad8.co.uk/store/p36/Rad8_504_MTB_-_Photochromic_Lenses%2C_Navy_Blue_Frame.html","date":"2020-04-05T15:59:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371606067.71/warc/CC-MAIN-20200405150416-20200405180916-00278.warc.gz","language_score":0.8701118230819702,"token_count":326,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__9372344","lang":"en","text":"Rad8 504 MTB - Photochromic Lenses, Navy Blue Frame\n- Rad 8 Mountain Biking GlassesRad8 Lenses start clear and darken in sunlight, great for night riding and all year round riding\n- Robust navy blue frame provides a close fit for maximum protection from road and trail debris.\n- Lightweight frame and lenses weighing 25g with rubber nose bridge for all day comfort\n- Robust poly-carbonate lenses, resist damage and protect your vision\n- Durable R8clearview anti-fog coating keeps your vision clear even on slow speed ascents.\n- Clear vision and protection in any weather.\nRad8 Photochromic Lenses- Adaptive lenses adjust and darken according to the intensity of the ambient light. Rad8 Photochromic lenses are initially clear, and will darken to a dark colour absorbing 76% of ambient light. These lenses are perfect for most riding conditions ( Including night rides) and superb if you are regularly in and out of shaded, wooded areas, or for all year round riding in typical UK weather for every day eye protection\nAll products backed by 60 day returns and 100 % refund policy. 24 months warranty applies to all manufactured components.\nSupplied with a micro-fibre soft case and EVA hard case.\nDurable, comfortable and with photochromic lenses that are replaceable. The Rad8 504's have been an instant hit with users as extremely comfortable everyday MTB glasses. They could be the only MTB glasses you will ever need.\nRad 8 Mountain Biking Glasses","domain":"optical_engineering"}
{"url":"https://himtimes.com/1980s-sci-fi-classic-turns-science-fact-with-new-glasses-free-3d-tech/?amp=1","date":"2023-12-06T04:07:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00428.warc.gz","language_score":0.9409180879592896,"token_count":468,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__237300411","lang":"en","text":"Washington D.C, Oct 7 (ANI): The 3D billboard that was present in the 1980s sci-fi classic ‘Back to the Future Part II,’ may actually exist in a few short years as scientists have created a new prototype for a 3-D display which can be used without 3-D glasses.\nFlying cars, hoverboards and video chat – a very futuristic vision for the year 2015 was presented in the movie that was released in 1989. Now, shortly before “Back to the Future Day” on October 21st, 2015, it is time to check whether reality has indeed kept up with the daring predictions of the 80s.\nOne of the technological innovations presented in this film was a huge 3D display. As far as this invention is concerned, Hollywood was almost right. Such displays will soon be possible.\nTU Wien and TriLite Technologies are presenting a display element which uses special micro optics and moving micro mirrors to project different pictures into different directions. This technology can be used to create 3D displays without the need for 3D glasses.\nA first prototype has been developed by TriLite Technologies and TU Wien a few months ago. Each 3D pixel (called “TrixelTM”) consists of a laser and a moveable mirror. The mirror directs the laser beams across the field of vision, from left to right. During that movement the image information is changed. With this basic idea, different pictures can be sent to the viewer´s left and right eye, so that a 3D effect is created without the need for 3D glasses.\nNow, a much more advanced second prototype has been presented. It is now a full color display, a significant advancement over the first monochromatic version. Each Trixel has been equipped with three different lasers (red, green and blue). The module consists of 12×9 Trixels, so any number of modules can be assembled to create a large outdoor display.\nResearcher Jorg Reitterer said that the software for controlling the modules and displaying movies has already been developed, adding that they can use any off-the-shelf 3D movie and play it on our display.\nThe study appears in Optics Express. (ANI)","domain":"optical_engineering"}
{"url":"https://spokaneorganics.com/shop/product/maxpar-metal-halide-double-ended-bulb-97","date":"2021-07-29T01:49:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153814.37/warc/CC-MAIN-20210729011903-20210729041903-00023.warc.gz","language_score":0.8543009161949158,"token_count":217,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__10636399","lang":"en","text":"MAXPAR Metal Halide Double Ended Bulb\nWattage: 1000 W\nColor Temperature: 6000 K\n30-day money-back guarantee\nFree Shipping in U.S.\nBuy now, get in 2 days\n- Blue-centric spectrum lamp best suited for vegetative growth\n- Inner quartz arc tube with outer Borosilicate protective jacket CRI of 65\n- Open on the ends for proper heat dissipation\n- Best used with lighting ballasts designed for 400V DE lamps\nMAXPAR brings you the only doubled jacketed metal halide (MH) bulb available in the industry. MH bulbs are required to be open fixture rated or else it has to be installed in a luminaire with a protective glass shield. MaxPar DE MH lamps use their exclusive patent pending secondary outer jacket design. MaxPar DE MH lamps use an outer jacket of Borosilicate glass that meets the requirements for rating as an O-type lamp as per the USA National Electric Code 410.73(F)(5) and ANSI standard C78.387.","domain":"optical_engineering"}
{"url":"https://kaizerpowerelectronics.dk/teardown/agfa-adc-5155-laser-module-teardown-part-3-of-4/","date":"2023-03-21T11:09:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00186.warc.gz","language_score":0.9214679598808289,"token_count":320,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__118962931","lang":"en","text":"The laser scanner and photomultiplier tube assembly made out a good chunk of the weight. The laser and scanner assembly is very heavy. It is on rubber mounts and is a sturdy unit built to minimize any kind of external vibrations. This is the teardown video of the laser scanning module, part 3.\nTeardown of a AGFA ADC 5155 x-ray image scanner / digitizer. Also known as Computerized Radiography (CR) it fulfills the job of scanning a x-ray exposed image plate. It scans with a laser beam to extract each pixel illumination with a photo multiplier tube setup.\nThis particular unit has a very interesting computer that runs on VME framework developed for the Motorola 68000 series CPUs. This can be seen in part 2.\nTo learn more about how photomultiplier tubes work, I did reverse engineering on a PMT module from a AGFA ADC Compact Plus. This article also has some additional pinout information on circuit boards AG-IUP32-8 and AGFA-IUP16 which has square photomultiplier tubes.\nPart 4 that is still in the making, will be a video and article about reverse engineering the photomultiplier tube assembly from this Agfa ADC 5155 solo machine. Getting the high voltage power supply unit to run without being controlled by the Motorola 68040 based computer and by reading the PMT output with a oscilloscope.\n2 thoughts on “AGFA ADC 5155 Laser Module Teardown (Part 3 of 4)”","domain":"optical_engineering"}
{"url":"https://www.eyenm.com/lasik-albuquerque/refractive-surgery-faq/","date":"2024-04-25T00:37:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00620.warc.gz","language_score":0.9304243922233582,"token_count":408,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__49609801","lang":"en","text":"The excimer laser is a unique and incredibly precise high tech “cold laser” that was developed in the 1980s. It is now used during LASIK to gently reshape the surface of the cornea in order to correct nearsightedness, farsightedness, and astigmatism.\nThe laser passed arduous clinical trials in the late 1980s and 1990s before gaining final approval in this country in 1995. Today’s LASIK procedures are done with this instrument and since the laser is fully computer-controlled it provides a greater degree of accuracy than surgeons have ever had in the past.\nThis translates to an unprecedented level of success for our patients who undergo LASIK surgery. We currently use the VISX Star/S4 excimer laser.\nFarsightedness or hyperopia is the opposite of myopia. The eyeball is either too short or the focusing power of the lens or the cornea is too weak not allowing light to focus sharply enough. As a consequence, the retina receives a blurred image. In the normal situation, the cornea is spherical or round, similar to a basketball. Farsightedness can be corrected with glasses, contact lenses, or refractive surgery, such as LASIK surgery.\nNearsightedness is also known as myopia and describes the condition where the eye focuses light too sharply either due to the length of the eyeball or the focusing power of the cornea or lens. As a consequence, the retina received a blurred image. Nearsightedness can be corrected with glasses, contact lenses, or refractive surgery, such as LASIK surgery.\nAstigmatism is the term to describe how oval the cornea is. This “football shape” causes light to be streaked into a smeared or double image. Astigmatism can be corrected with glasses, contact lenses or refractive surgery, such as LASIK surgery.","domain":"optical_engineering"}
{"url":"http://www.65779.net/en/669.html","date":"2023-06-10T12:10:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224657169.98/warc/CC-MAIN-20230610095459-20230610125459-00568.warc.gz","language_score":0.7944256067276001,"token_count":163,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__256722582","lang":"en","text":"VIEWED:841 CLASSPRODUCT CLASSTemperature control series\n1. Environmental protection and energy saving.\n2. Good refrigeration effect.\n3. Low noise.\n4. Stable performance.\n1. The laser chiller cools the laser generator of the laser equipment.\n2. In the long running process of laser equipment, the laser generator will constantly generate high temperature, which will affect the normal operation of the laser generator. Water cooling is needed to take away the heat, and the water chiller controls the temperature of the laser generator, so that the laser generator can keep working normally for a long time.\nIn the previous: Variable frequency chiller\nThe next article: Mold temperature machine","domain":"optical_engineering"}
{"url":"https://connects2.com/products/connects2-vision","date":"2019-11-21T08:26:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670743.44/warc/CC-MAIN-20191121074016-20191121102016-00436.warc.gz","language_score":0.9051545262336731,"token_count":108,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__37453886","lang":"en","text":"Camera Add On Kits\nAdd a safety camera to your vehicle and retain your OEM system with our brand-new range of camera kits, designed especially for vehicles without a factory camera input. Simply install our interface behind the dashboard and choose a front or rear location for the included camera. The camera image will be displayed on the factory screen and can be viewed automatically via reverse gear or manually through the vehicle’s controls. The interface also features an input for an optional second camera (sold separately) for a simultaneous front and rear coverage solution.","domain":"optical_engineering"}
{"url":"https://www.adv-tech.it/en/industrial-vision-markets/medical/","date":"2021-07-31T08:26:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154085.58/warc/CC-MAIN-20210731074335-20210731104335-00608.warc.gz","language_score":0.9028558135032654,"token_count":154,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__155292351","lang":"en","text":"Today, image processing is an essential part of the technology used in medical science. Reliable machine vision technologies are not only used in the production of medical products, components and equipment for medical technology. Digital image acquisition and processing offers a wide spectrum of possibilities for investigating, analysing and diagnosing diseases.\nSome typical applications for this market are microscopy, laboratory automation, and diagnostic equipment, for example in haematology, pathology, ophthalmology, dentistry, in addition to the medical analysis of movement and rehabilitation monitoring.\nAnalog Goes Digital Blood Fraction Identification Uses Basler ace GigE Cameras\nWhole blood fractionation is a time consuming process when performed manually, but blood samples are highly variable in nature and this makes automation extremely difficult…","domain":"optical_engineering"}
{"url":"http://jaspervofu988.affiliatblogger.com/11797450/2-features-you-do-not-know-in-respect-to-lasik-eye-surgical-procedures","date":"2018-09-21T04:39:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156780.2/warc/CC-MAIN-20180921033529-20180921053929-00304.warc.gz","language_score":0.9570977091789246,"token_count":866,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__31636065","lang":"en","text":"The eye can be taken a look at with relative ease as to both its function and its structure. A practical assessment consists of the capability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be tested in several ways. The patient may be asked to determine illuminated letter or things of varying sizes on what is referred to as the Snellen chart.\nAlternatively, the examination of the structural part of the eye might be made in numerous methods. Stress within the eyeball is measured by a \"tonometer.\" In particular illness, particularly in glaucoma, the tension in the eyeball is increased markedly.\nHowever, it ought to be well kept in mind that a client with an eye issue might have other issues as well. Frequently other physical conditions are primary and affect the eye as a repercussion. The look of the eye can signal the physician and the patient to problems in some disruptions of other parts of the body even before other symptoms present themselves.\nOne's dependence on sight is highlighted when one deals with a short-term or possible irreversible loss of this vital sense. When restorative procedures are sought, specific forms of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some individuals are troubled with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to encourage reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another kind of vision correction. The only distinction is that with useful site this type of surgical treatment, one's vision is remedied permanently.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe main function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgical treatment, there are still disadvantages that individuals need to understand. Probably, the primary reason that this kind of eye surgical treatment has actually become well accepted is because the majority of its cases had actually succeeded.\nIn spite of more its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is one of the most delicate portions of the eye, many people state that the operation can be very risky.\nTo puts it simply, a easy mistake could practically cause an person's lifetime blindness. Hence, it is necessary to think about lots of aspects prior to choosing whether LASIK eye surgical treatment is the ideal restorative procedure one needs to go through.\n2. It is not a ideal treatment\nLASIK eye surgery might correct your vision but it does not always suggest that it can provide you a best vision. Even if analytical reports reveal that 70% of the patients may have 20/20 vision, this does not always indicate they have perfect vision too.\nGiven all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the perfect eye surgery the way the majority of people view it\nAlternatively, the assessment of the structural part of the eye might be made in a number of ways. It ought to be well remembered that a client with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a consequence. The appearance of the eye can notify the patient and the doctor to difficulties in some disruptions of other parts of the body even prior to other symptoms present themselves.\nLike its concrete counterpart, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://blackchristiannews.com/2015/01/nasa-plans-to-build-revolutionary-space-telescope-capable-of-producing-images-1000-times-sharper-than-hubble/","date":"2020-05-25T17:52:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347389309.17/warc/CC-MAIN-20200525161346-20200525191346-00222.warc.gz","language_score":0.9423416256904602,"token_count":215,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__99197107","lang":"en","text":"The concept of a telescope using a giant opaque disk half a mile across to focus light is currently being developed by NASA and the University of Colorado Boulder. If a success, it would offer a whole new picture of the Universe, the Daily Mail reports.\nAccording to the scientists, diffracted light waves from a faraway star or other heavenly body would bend around the edges of the disk and converge in a central point.\nThat light would then be fed into the orbiting telescope to provide high-resolution images.\nCU-Boulder Professor Webster Cash says the new telescope concept, named the Aragoscope after French scientist Francois Arago who first detected diffracted light waves around a disk, could allow scientists to observe space objects like black hole ‘event horizons’ and plasma swaps between stars.\nThe cutting-edge telescope would also be able to point toward Earth and image objects as small as a rabbit, giving it the ability to hunt for lost campers in the mountains, Cash said.\nClick here to read more.\nSOURCE: Sputnik News","domain":"optical_engineering"}
{"url":"http://alphaimager.com/products/nulinescope/","date":"2017-10-23T04:02:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825575.93/warc/CC-MAIN-20171023035656-20171023055656-00565.warc.gz","language_score":0.9308759570121765,"token_count":411,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__51013375","lang":"en","text":"The PCB industry continues to adopt increasingly higher levels of integration and thereby achieves greater component density. This translates to a reduced tolerance on PCB assembly which as a consequence has to become tighter. There is a pressing need for reliable and accurate visual inspection of PCBs.\nIn today’s fast-paced environment, accuracy is critical and there in no time for delays due to improper quality tests. Present-day electronic circuits are assembled with very small-footprint components, some as small as 0.2 to 0.1 mm. Viewing such components require high magnification inspection systems but at an affordable cost.\nNuline has made a revolutionary breakthrough in this field of inspection systems when it designed and developed a low-cost visual inspection system for easy viewing of electronic circuit boards – the NULINESCOPE.\nThe Nulinescope is a monocular continuous zooming optical inspection system with a high definition colour CCD camera and TV system together. With a high working distance and wide field of view, there is an exceedingly high definition output. A substantial advantage over other run-of-the-mill microscope inspection systems is that there is minimal eye-strain in the Nulinescope enabling faster and simpler inspection.\nNulinescope offers both vertical and 45 degree tilt (3D) viewing of objects.\nThe Nulinescope offers magnification up to 100x and the images can be captured on a computer by using the USB cable provided. The unit is fully integrated for line inspection as well as quality checking. All this at a fraction of the cost of its counterparts in the market today.\nThis system can be used for visual inspection of electronic components like ASICs, ICs, Transistors, Diodes, etc.\nThe microscope will give clear, distortion free, true color images on the integrated LCD-TFT monitor. The system includes a high resolution camera to capture the magnified image of the object. The image can be captured on a computer with USB interface cable option.","domain":"optical_engineering"}
{"url":"https://www.computerworld.com.my/tech/emerging-technology/finally-smart-glasses-that-dont-look-dumb/?page=2","date":"2018-04-23T11:47:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945942.19/warc/CC-MAIN-20180423110009-20180423130009-00186.warc.gz","language_score":0.9395341873168945,"token_count":604,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__77735063","lang":"en","text":"The Carl Zeiss technology beams light perpendicular to the eye from right to left inside a special curved lens built directly into the glasses' lens, then immediately reflects it into the eye using something called a fresnel lens, which is a flat lens that's made up of concentric circles.\nThe fresnel lens concept was developed by the French nearly 200 years ago for use in lighthouses. You may have seen them in bookstores, which used to sell flat magnifying lenses using the fresnel concept.\nWhile the Carl Zeiss technology probably won't offer the same brightness and clarity as Google Glass, it might be better overall. It's possible that the Carl Zeiss solution will be safer for heavy use and may prevent an affliction I call \"Glass Eye,\" where your right eye becomes sore from such a bright light being beamed into it.\nThe technology involves injection-molded polycarbonate, which can be mass-produced and integrated into prescription glasses. Interestingly, the smart glass part of the Carl Zeiss lens must be customized for the wearer's prescription along with the convention lens part.\nThis is where I believe most consumers will get smart glasses. It will be an option at the optometrist's office or glasses retailer.\nChoosing smart versions of your prescription glasses will probably cost a few hundred dollars extra, and medical insurance probably won't cover it. But by choosing that option, you'll get future Google Glass-like functionality without social awkwardness.\nWhy Google and Carl Zeiss should partner on glasses\nCarl Zeiss is a lens maker, not a platform company. It doesn't care about the platform.\nGoogle, on the other hand, is a smart-glasses platform company (among other things) and although it has patented technology for the Google Glass prism system, it doesn't really care about hardware.\nWhile press accounts suggest that the Carl Zeiss technology is associated with some unknown competitor to Google Glass, there's absolutely no reason to leap to this conclusion.\nCarl Zeiss says it is talking with other companies about using the smart glasses lens technology, and it's very likely that one of these companies is Italian eyeglass giant Luxottica, which is the behemoth behind popular brands like Lenscrafters, Sunglass Hut, Pearle Vision, Sears Optical, Target Optical, Ray-Ban, Persol, Oakley and glasses.com.\nMeanwhile, Google is definitely working with Luxottica on Google Glass. In December, Google filed an application with the Federal Communications Commission for an enterprise version of Google Glass. (Note that the enterprise market for smart glasses is expected to grow sixfold this year, according to APX Labs.)\nWhat Google Glass brings to Luxottica is an awesome platform in the form of the cloud-based infrastructure, the data and the operating system, as well as industry-leading artificial intelligence, voice-recognition and all the rest.\nSign up for Computerworld eNewsletters.","domain":"optical_engineering"}
{"url":"https://neid.psu.edu/","date":"2020-09-28T17:23:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401604940.65/warc/CC-MAIN-20200928171446-20200928201446-00097.warc.gz","language_score":0.9031627774238586,"token_count":1828,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__127607842","lang":"en","text":"Optical fibers are thin waveguides made of glass and are used for transportation of light. Widely used in the telecommunication industry, in the 1980s they started to be used in astronomy to couple light from the telescope focus to highly specialized and sophisticated instruments located elsewhere, eg. in the observatory basement (Heacox 1986).\nFibers typically have three layers, the core, cladding and buffer (Figure 1).Fibers and operate on the principle of total internal reflection (TIR) : the core and cladding are made from glass, and the refractive index of the core is higher than that of the cladding to enable TIR. The role of the buffer, on the other hand, is to provide protection to these fragile glass strands.\nFigure 1 : Optical fiber layout\nFor an extreme RV precision instrument like NEID, optical fibers offer various advantages, some of these are : –\n- By decoupling the instrument from the telescope focus, they allow for the instrument to be quite heavy and sophisticated (NEID weighs about a couple metric tons!) . Further, it allows the instrument to be housed in the basement of the WIYN telescope in a room with temperature control to the level of 1 degree Celsius or better.\nFigure 2 : WIYN basement showing the location of NEID, the laser frequency comb and the electronics rack/s.\n- Having the instrument in the basement also means a near constant gravitational vector for the instrument. An instrument at the Cassegrain focus of the telescope would move constantly as the telescope tracks the target. This is important to prevent a variable sag or bending of the optics or mounts in the instrument.\n- The fiber provides a degree of scrambling for the light. This means that illumination at the output end of the fiber is less sensitive to the the location of the star on the input face. This is important to average over any illumination changes or guiding errors of the telescope (See Halverson & Roy et al. 2015).\nNEID Fiber Train\nShown below is the entire fiber train for NEID. Here, we shall go over some of the components.\nFigure 3 : Overview of the NEID fiber train\nFiber puck and polishing\nNEID has two different operating modes, High Resolution (HR) for the brighter targets for maximum RV precision, and High Efficiency (HE) for the fainter targets, with higher throughput. To enable this, the HR mode has smaller fibers (64 micron core) while the HE mode fibers are bigger with ~100 micron cores to allow for higher efficiency.\nFor the HR mode we have three fibers – Sky, Science and Calibration ; whereas the HE mode has only Science and Sky (bigger fibers take up more detector real estate). The Science fiber, of course, is where the stellar light enters the instrument. The Calibration fiber in the HR mode is used for simultaneous wavelength calibration of the stellar spectrum. The Sky fiber is used for a variety of telluric corrections.\nThis combination of HE and HR mode fibers are inserted into a fused silica puck manufactured by Femtoprint using a combination of a femtosecond laser and hydrogen fluoride etching. This is shown in Figure 4.\nFigure 4 : F. Silica puck from Femtoprint. It shows the 5 bore holes for the 3 HR and 2 HE fibers, along with their conical inserts to ease the process of fiber insertion.\nAfter inserting the fibers in the puck they are epoxi-ed into place using Epotek 301 – 2; once this epoxy dries, we polish the puck. For the polishing we use a custom made polishing jig which attaches the puck shown above to the polishing arm on the table. It then moves in a ‘figure of 8’ pattern to polish the fiber. To do this we start with a coarse 60 um grit, and progressively move to smoother grits as 12, 5, 3, 1, 0.3 um grits of silicon carbide, aluminium oxide and diamond.\nFigure 5 : Video clip showing the polishing mechanism\nOnce we polish the puck, and grind away all the epoxy, the resultant puck looks like shown below in Figure 6. We need to get a good surface smoothness to prevent FRD deterioration from roughness on the end surface of the fiber.\nFurther for NEID we plan to stick a plano – convex lens onto this polished puck surface as part of the input optics focal ratio changer, and to protect the fiber surface from damage.\nFigure 6 : Polished NEID puck\nThe fiber that goes inside the instrument in this puck is circular. However, the rest of the fiber train is octagonal. Therefore we splice the circular fiber on to the octagonal fiber face, which basically means fusing them together.\nTo do this, we first strip away the polyimide buffer shown in Figure 1. We do this using a 3SAE plasma arc fiber stripper. This creates a plasma arc between three electrodes located 120 degrees apart. The fiber is placed between them and slowly gets stripped off of its buffer. Shown in Figure 7 is the fiber being stripper for the HPF fiber.\nFigure 7 : Clip showing an HPF fiber being stripped\nAfter this we use a diamond blade cleaver to cleave (cut) the stripped fiber. The stripped fiber has about a 4 -5 mm patch of exposed fiber (only core and cladding). This is then spliced on to the patch of fiber using a device similar to the stripper – it uses three electrodes to create a plasma arc which fuses the two ends together. Below in Figure 8 is shown a test fiber after being spliced. Figure 9 shows the spliced HPF fibers in a splice sleeve and heat shrink tubing to protect the splice.\nFigure 8 : Splice test for NEID fibers\nFigure 9 : Splice protection for the HPF fibers. NEID fibers will be similar\nModal Noise Agitator\nThe optical fibers being used for HPF and NEID are multi-mode, and hence support a finite number of modes. Hence the light emerging from the fiber contains an interference pattern between the many modes traversing across the fiber. This is called modal noise, or “speckle noise”. For big fibers, there are enough modes that the statistical variation in the change in energy distribution of modes is insignificant. However, in the presence of smaller fibers as in NEID, or the use of slits or fiber slicing, modal noise needs to be mitigated for the measurement of precise radial velocities.\nThe HPF science and sky fibers are agitated using the device shown below; whereas for the calibration fiber we use a combination of a mechanical agitator and an integrating sphere. This is because the problem gets exacerbated for the calibration fiber which uses the laser frequency comb – a highly coherent light source.\nFor an introduction to understand Modal Noise, refer to – Baudrand and Walker 2001, McCoy et al. 2012, Mahadevan et al. 2014.\nFigure 10 : Clip showing the fiber agitator for HPF. NEID will use a similar one.\nDouble Scrambler – Ball Lens\nFibers provide some degree of scrambling the spatial location of the input spot (Heacox 1986), however for precision RV application, this needs to be improved by many orders of magnitude. For HPF and NEID we use the ball lens described in Halverson & Roy et al. 2015. Basically, our scrambler is a simple ball lens with refractive index ~ 2, which exchanges the far and near field of the fiber. The two ends of the fibers are placed inside a v – groove block (as shown in Figure 11), and butt coupled to the ball lens which is in the middle.\nThis ball lens is based on the double scrambler concept proposed early in the days of fiber-fed spectroscopy by Hunter and Ramsey (1992) at Penn State!\nFigure 11 : Showing the ball lens setup during prototyping. Figure Credit : Halverson 2015\nFigure 12 shows how the scrambling performance improves for an octagonal fiber over a circular, further the gains for the double scrambler, and for the spliced system.\nFigure 12 : Showing the scrambling gain.\nThe top panel shows the input face of the test fiber. Whereas the bottom one shows the near field. Figure Credit : Halverson 2015.\nThis entire system forms the instrument optical fiber package. There are some additional systems involved for the acquisition camera as well as the exposure meter, which are not discussed here. Essential to ‘carry’ the photons from the telescope or calibration sources into the instrument, the fibers are like the circulatory system of the instrument! (In this analogy, the electronic system is perhaps the nervous system, communicating information from the sensors and heater to the system computer.)","domain":"optical_engineering"}
{"url":"https://faruv.com/webinar-current-applications-of-222nm-far-uv-in-transportation-and-buildings/","date":"2023-09-29T06:08:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510498.88/warc/CC-MAIN-20230929054611-20230929084611-00826.warc.gz","language_score":0.7262003421783447,"token_count":171,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__216484803","lang":"en","text":"IUVA Webinar on “Current Applications of 222nm Far UV in Transportation and Buildings”, presented by Far UV Technologies and Boeing\nBy Far UV Technologies and Boeing presented at the International Ultraviolet Association (IUVA) – December 2020\nFar UV Technologies, Inc. is one of the few US manufacturers of 222nm Disinfection* Lighting Solutions.\nStay up to date by following us on Social Media.\nYoutube Channel: https://www.youtube.com/channel/UCj3XgX6kaUNzdRBGSSi_YNQ","domain":"optical_engineering"}
{"url":"https://i3.mgh.harvard.edu/faculty/dubach-matt/","date":"2024-04-24T10:06:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819089.82/warc/CC-MAIN-20240424080812-20240424110812-00211.warc.gz","language_score":0.9517565369606018,"token_count":384,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__191727949","lang":"en","text":"J. Matt Dubach, PhD is an Assistant Professor in Radiology at Harvard Medical School and faculty member in the i3 and the Center for Systems Biology. The Dubach lab focuses on innovative tools to make the unmeasurable in biomedicine measurable through various imaging modalities and sensor development. Dr. Dubach developed an optical approach to measure clinical drug target engagement with subcellular resolution in vivo using fluorescent drug analogs and polarized fluorescent two photon intravital microscopy. This approach enables his lab to probe the heterogeneity of drug distribution and target engagement in cancer and beyond while correlating fractional occupancy to drug efficacy in established and novel targets. His lab continues to develop innovative probes through leveraging advances in chemical biology, nanoscience, genomic engineering, imaging and, increasingly, image analysis.\nDr. Dubach received his BS in Chemical Engineering from Lehigh University and a PhD in Bioengineering from Northeastern University. He then trained in molecular imaging as an NIH T32 postdoctoral fellow in the laboratory of Ralph Weissleder at the Center for Systems Biology at MGH. He subsequently received a pathway to independence award from the NCI to study the role of target engagement in breast cancer. Prior to his PhD, Dr. Dubach was a member of the technical staff in the biomedical engineering group at Draper Laboratory where he developed optical nanosensors for measurements of ions and small molecules in vitro and in vivo, winning the Draper distinguished performance award for his accomplishments. Dr. Dubach also cofounded the company Ionu Biosystems, serving as the principle investigator on a NASA funded project striving to develop space-capable diagnostics. As Associate Director for the i3, he specializes in regulatory affairs to secure FDA approval for i3 technologies and executes the vision of the i3. He has published over 20 peer reviewed papers and is co-inventor on 5 issued patents.","domain":"optical_engineering"}
{"url":"https://venturefestsouth.co.uk/partner/ired","date":"2020-01-22T22:44:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250607596.34/warc/CC-MAIN-20200122221541-20200123010541-00378.warc.gz","language_score":0.9055258631706238,"token_count":140,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__72316643","lang":"en","text":"Remote sensing consultancy\niRed is an industry-leading remote sensing consultancy, providing specialist non-contact measurement surveys, training and solutions across the UK.\nWe’re a technology and innovation leader with a sixteen-year history of specialisation in infrared thermography. Our research-led development has broadened the thermal imaging technology platform in recent years to also include multispectral, photogrammetry and advanced camera deployment using drones.\nWe utilise remote sensors to capture electromagnetic waves – such as visible light and infrared – which allows us to assess factors such as heat, condition and reliability. Using this data, we’re able to improve efficiency, productivity and safety for our clients.","domain":"optical_engineering"}
{"url":"http://www.skillsetonthenet.com/site2001/page03.htm","date":"2023-12-01T10:49:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100286.10/warc/CC-MAIN-20231201084429-20231201114429-00526.warc.gz","language_score":0.8775914907455444,"token_count":130,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__102187323","lang":"en","text":"What is HD-DMD? High Definition Digital Multilayer Disk.\nQuite simply, it is an optical disk with storage capacity\nfar superior to that of a DVD, 4.7GB vs. more than 20GB,\nmaking HD-DMD ideal for high definition movie needs. By\nusing the reliable red laser and simply adding more layers\n(like adding pages to a book), DDATA technology makes 20GB,\n50GB, even 100GB disks a reality! Don’t be fooled\nby imitations, authentic red laser multilayer technology\nhas arrived and it is brought to you by DDATA.","domain":"optical_engineering"}
{"url":"https://www.crowdh.com/a-deeper-look-at-the-universe-the-james-webb-space-telescope/","date":"2021-12-02T03:19:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964361064.69/warc/CC-MAIN-20211202024322-20211202054322-00532.warc.gz","language_score":0.9204854369163513,"token_count":1027,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__43875250","lang":"en","text":"The age of the universe. Dark matter. Black holes. Galaxies. Stars. Distant planets. For the past twenty years, the Hubble telescope has been orbiting the Earth while taking pictures of what lays deep within our universe. Hubble has provided answers to some of the pressing questions held by astronomers while uncovering new mysteries of our universe. The telescope ushered in a new age of astronomy. Now, after twenty years of construction, the James Webb Space Telescope (JWST) will be extending and continuing the discoveries of Hubble.\nWhat’s New with the James Webb Space Telescope?\nThe James Webb Space Telescope will be the most powerful telescope ever launched. Not only will it be able to peer into dust clouds to observe the creation of stars and planets, but it will be able to observe the earliest stars and galaxies. This is thanks to two key features. First, the JWST will have the biggest telescope mirror to fly in space.\nThe 6.5-meter diameter mirror will allow the telescope to collect 7 times more light than the Hubble telescope. The more light a telescope can collect, the larger the collection field. Second, the James Webb Space Telescope has been designed to collect infrared light while the Hubble telescope is not very sensitive to infrared — a light invisible to the human eye. The farther an object is, the more redshifted it becomes. This pushes the light from UV and optical to near-infrared which makes observations of distant objects difficult without an infrared telescope.\nIn terms of orbit, the James Webb Space Telescope will not be orbiting the Earth like Hubble. It will actually be sent past the moon, reaching approximately 1.5 million kilometers from Earth, on an Ariane 5 rocket. To put this in perspective, the Hubble currently sits at approximately 570 kilometers from Earth. The JWST will sit at the Earth-Sun L2 Lagrange point — a point in space where the combined gravitational force of the Sun and the Earth creates an equilibrium of sorts where an object can be placed. The European Space Agency currently has the Herschel Space Observatory located at this point.\nWhat’s Being Observed by the JWST?\nThe James Webb Space Telescope will be able to expand upon what we already know by looking deeper into the universe. The main focus of the JWST will be searching for the first stars and galaxies that formed after the Big Bang. The JWST will also study the formation and evolution of galaxies, stars, and planetary systems. Alongside searching for the creation of planets, the James Webb Space Telescope will be able to search for and study planets orbiting distant stars; we will be able to observe exoplanets like TRAPPIST-1 and determine their atmospheres. If we move closer to home, the JWST will also be able to observe planets within our solar system. Once the telescope is set up, the JWST will be the next step in space exploration.\nWho is James Webb?\nJames E. Webb ran NASA from February 1961 to October 1968; he was a man who saw the space program as more than a political race. He advocated for NASA to be a balance between human space travel and science which led to a decade of unparalleled space research. Webb led NASA during the height of the space program where he oversaw 35,000 employees and more than 400,000 contractors across the U.S. Their goal was to put a man on the moon before the decade ended.\nNASA Administrator Sean O’Keefe said this about Webb when announcing the new name for the telescope: “It is fitting that Hubble’s successor be named in honor of James Webb. Thanks to his efforts, we got our first glimpses at the dramatic landscape of outer space. He took our nation on its first voyages of exploration, turning our imagination into reality. Indeed, he laid the foundations at NASA for one of the most successful periods of astronomical discovery. As a result, we’re rewriting the textbooks today with the help of the Hubble Space Telescope, the Chandra X-ray Observatory, and the James Webb Space Telescope.”\nWhen Will the James Webb Space Telescope Launch?\nThe James Webb Space Telescope is expected to launch in 2018 and is currently undergoing rigorous tests. Due to its massive size, the telescope will be launched furled. After its launch, it will have to expand over the course of two weeks in space. From there, the sunshield will be activated. The telescope will be given time to cool down before they begin to focus it. NASA expects the JWST will be ready to make observations six months after launch.\n- Celestial Shows: The 2017 Summer Meteor Showers - April 28, 2017\n- The James Webb Space Telescope: A Deeper Look at the Universe - April 15, 2017\n- 5 Tips on Spotting Fake News - April 12, 2017\n- First-Past-the-Post: A Distorted View of Canada - March 2, 2017\n- Alternative Media: Escaping the Lamestream Media - February 18, 2017","domain":"optical_engineering"}
{"url":"http://www.advancedav.rentals/services/visual_effects/laser-shows.html","date":"2017-08-17T23:11:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886104172.67/warc/CC-MAIN-20170817225858-20170818005858-00255.warc.gz","language_score":0.9175670742988586,"token_count":176,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__9944265","lang":"en","text":"Bring your event to the next level with laser projection. Generate vivid graphics or create unique liquid sky effects with high powered lasers. The possibilities presented with entertainment lasers are limited only by your imagination.\nUtilizing a cutting edge inventory of laser projection products Advanced A/V Rentals provide you with the proper laser equipment as well as a licensed laser technician to provide your event with it's laser projection needs.\nAccess to laser equipment is only part of the puzzle. The real magic comes with the design of the laser show or graphic. Advanced A/V's team of designers coupled with laser show software allows for possibilities only limited by your imagination when it comes to your laser show.\nRounding out the process comes the execution of your laser show. Advanced A/V will setup the equipment and our licensed laser technician will run your laser show following the industry standard safety procedures.","domain":"optical_engineering"}
{"url":"http://mailweb.iacs.res.in/lectures/tkrd_08.html","date":"2019-02-23T23:49:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249556231.85/warc/CC-MAIN-20190223223440-20190224005440-00285.warc.gz","language_score":0.942407488822937,"token_count":194,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__16402479","lang":"en","text":"|Topic :||Interaction of matter with strong light, and of strong light with matter|\n|Date :||January 8, 2008|\n|Time :||3:30 PM|\n|Venue :||C V Raman Hall, IACS|\nAll are cordially invited to attend.\nAbstract: Present laser technology readily allows the generation of light pulses whose instantaneous intensities are high enough to allow generation of electric fields that are Coulombic in magnitude. The highly non-linear, non-perturbative interaction of such light pulses with matter has been a most active areas of contemporary research and some recent highlights will be discussed. What has not been studied so much is the effect that matter has on strong light, and this is a facet of light-matter interaction that is currently being investigated in our laboratories. Some recent results will be discussed which are not only of fundamental interest but also have potential applications in the life and biomedical sciences.","domain":"optical_engineering"}
{"url":"https://softprom.com/top-5-innovations-for-installers-from-hanwha-techwin","date":"2024-04-23T02:40:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818452.78/warc/CC-MAIN-20240423002028-20240423032028-00322.warc.gz","language_score":0.9120493531227112,"token_count":1091,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__18310038","lang":"en","text":"Top 5 Innovations for Installers from Hanwha Techwin\nReportage | 22.07.2022\nHanwha Techwin is renowned for our installer-friendly product features — so we put together a short review to demonstrate the main innovations you can expect with Wisenet products. Read and Watch below:\n#1. Modular Camera Design\nWisenet X dome cameras have been designed to significantly reduce the time normally needed for installation, set-up and maintenance adjustments.\nWith a four-part magnetic modular design that simplifies the installation process, Wisenet X dome cameras are equipped with a number of practical features which help minimize the time installers have to spend on site.\n- Magnets which lock sensor modules into the dome housing\n- Prefigure IP network settings without the need to remove the camera module from the box\n- The network cable can be inserted through the waterproof gland with the aid of an RJ45 plastic push-through device, negating the need to re-make a cable end\n- A motorized PTRZ (Pan, tilt, rotate, and zoom) gimbal which enables installers to remotely pan, tilt, rotate and zoom the lens position in order to set the camera’s field of view.\n#2. PoE extender cameras\nWisenet X series PoE Extender cameras are equipped with a secondary network port, allowing you to power and connect an additional network camera or network device (I/O controller, PIR sensor, etc.) at distances of up to 80 m away — saving you time and money on long cabling and installation.\nPoE Extender cameras provide an equally cost-effective solution for new installations as they reduce the number of network ports and switches, as well as the amount of cabling, required. Installation ease is matched by a considerable reduction in the cost of the time system integrators would normally have to spend on-site to install new cameras.\n#3. Wisenet X PTZ PLUS\nWisenet PTZ PLUS cameras deliver an optimal PTZ performance thanks to Hanwha Techwin’s proprietary chipset Wisenet7, its unique 4K 25x lens and platforms. The cameras are available in 4K/6MP/2MP resolutions and 25x/40x powerful zoom, providing the partners and end users with a variety of choices in a lineup\nThe Wisenet PTZ PLUS cameras are compact and up to 65% lighter than conventional PTZ cameras. This increased the pan/tilt speed while reducing the installer’s burden during installation. The cameras require engineers to simply match three points and twist for fastening between camera mounts. The installation convenience is also improved with a simple cable connection through a single RJ45 cable.\nWisenet multi-directional cameras with motorized PTRZ\nWisenet P series multi-sensor cameras are equipped with multiple sensors, allowing them to effectively monitor with simultaneously multiple directions with just a single device without any blind spots.\nBy installing Wisenet multi-sensor cameras, the cost of system installation and maintenance is reduced while successfully monitoring wide areas.\nLife will also be much easier for installers with Wisenet P series multi-sensor cameras that supports motorized PTRZ (Pan, tilt, rotate, and zoom).\nThese will reduce on-site times as they enable engineers to remotely pan, tilt and rotate the lens’ positions in order to set the camera’s field of view.\n#5. Ready to work Wisenet AI analytics\nWith edge-based AI the data is analysed by the camera first and subsequently sent to the server. This reduces the burden of transferring and storing large amounts of data to a server, thereby increasing efficiency, saving time, and reducing server costs typically required to analyze data.\nWisenet AI cameras detect and classify people, vehicles, faces, license plates, and more in real-time.\nWith a range of available resolutions from 2MP to 4K, the cameras’ deep-learning algorithms can reliably identify multiple distinct objects. Reduce false alarms due to none interesting motion, like wind-blown trees, shadows, or animals.\nAnalytics become a reliable second pair of eyes to operators helping them know where to look for important real-time events while making post-event forensic searches highly efficient.\nWisenet AI camera analytics are fully integrated into Wisenet SSM, Wisenet WAVE, Milestone XProtect, and other VMS.\nFor installers specifically, offering edge AI as part of your installations helps you stand out in the market, by offering solutions for many different use cases. Out-of-the-box solutions are extremely attractive to end-users who don’t have the time or resources to set up video analytics manually. AI cameras like the ones in the Wisenet X Series and P Series work straight from the box so there’s no need for video analytics experts to fine-tune the analytics. Installers don’t have to spend valuable time configuring complex server-side software. Of course, this also has a knock-on positive impact on training time and costs.\nSoftprom is a provider of integrated solutions for video security, video surveillance and video analytics systems.","domain":"optical_engineering"}
{"url":"http://aronuniversal.in/fluorescent.html","date":"2023-09-26T19:05:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510219.5/warc/CC-MAIN-20230926175325-20230926205325-00039.warc.gz","language_score":0.939806342124939,"token_count":652,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__151947096","lang":"en","text":"In 1930’s, it has been experienced that certain dyes and resins combination produce brighter colours than normal colours and had the unique effect of “glowing” under ultra violet or black light. As the chemistry and manufacturing process improved, the areas of application expanded to advertising. Safety and promotional firms began to recognize the uniqueness of these bright colours and their special uses.\nFor example, fluorescent orange colour absorb the same orange band as the conventional, however it also converts the lower end of the spectrum and ultraviolet light into visible light of the pre-dominant wavelength. Conventional / normal colour can reflect only light in visible range, in case of fluorescent colours, it even converts absorbed UV light and reflects in visible range, there by colour appears brighter than normal colour. When clean, bright conventional colour is able to reflect a maximum of 90% of a colour present in the spectrum, a fluorescent colour can reflect 200-300% of colour present in the spectrum.\nFluorescent colours are generally more fugitive than similar hue conventional colours; the relative degree of light stability would depend on formulations, film deposits, wall thickness, additives etc., items as well as the areas of the intended use.\nDaylight fluorescent pigments are stable to indoor light or outdoor conditions other than direct sunlight. They are affected by exposure to direct sunlight. The degree and effect of change is dependent on the colour, intended end usage, pigment loading and other important factors including\nIf prolonged outdoor exposure is intended use for the fluorescent coloured item, actual outdoor exposure tests should be conducted in order to be certain in satisfactory results. Accelerated testing, such as carbon arc/ xenon weather meter, will give comparative indications of light fastness, but there is no exact correlation between accelerated and actual outdoor weathering exposure.\nLight fastness can be improved to an extent by :\nWhen light falls on any coloured object, it absorbs and reflects light, the reflected light when reaches eye, the perception of colour is observed.\nNOTE: The reflected light is responsible for appearance of colour.\nConventional colour absorbs and re-emits that portion of the visible spectrum of its predominant wavelength; remaining colours are absorbed and dissipated as heat.\nFluorescent pigments are transparent organic resin particles containing dyes which are capable of fluorescing while in solid state solution. The characteristics of fluorescent pigments will be decided by the surrounding resinous mixture.\nFluorescent colours are generally more fugitive than similar hue conventional colours, the relative degree of light stability would depend on formulations, film deposits, wall thickness, additives etc, as well as the areas of the intended use.\nDisclaimer: Technical information, advice, statements, verbal and written suggestions and test results are offered for guidance only and it is believed to be reliable based on our present knowledge. There are not to be construed as a warranty for which we assume no responsibility. It is responsibility of the user to ensure their employee are aware of the content and also to ensure that any additional regulations are satisfied.\nNO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE MADE. Users are responsible for testing our products and suggestions to ensure that they are suitable for the intend purpose and application prior to use","domain":"optical_engineering"}
{"url":"https://winghometrailcamera.myshopify.com/products/winghome-trail-camera-630m-16mp-1080p-game-camera-with-leica-m6-solution-sony-sensor-0-4s-trigger-time-outdoor-wildlife-camera-motion-activated-crystal-clear-night-vision","date":"2024-04-16T13:06:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817095.3/warc/CC-MAIN-20240416124708-20240416154708-00209.warc.gz","language_score":0.7941636443138123,"token_count":254,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__64831092","lang":"en","text":"- 【Crystal Clear and Sharp】Equipped with LEICA M6 solution and Sony sensor, the 630M game camera can capture the best quality image and video for both day and night.\n- 【4 Night Modes】Features with 6 HIGH POWER low-glow IR LEDs and 4 adjustable IR flash modes, you can adjust the flash settings to suit specific needs and optimize battery life.\n- 【Wide Angle with Zero Fish-eye Distortion】The 100° viewing angle and embedded distoration correction algorithm ensure a wide detection range to shoot clear, immersive video and photos without fish-eye distortion.\n- 【Fast Trigger & Long Detection】Lightning-fast 0.4s trigger speed and 65ft detection range ensure the game camera is activated to capture fast-moving targets swiftly and accurately.\n- 【Compact Design and Large Screen】Mini size and the built in 2.31” color display make field set up extremely simple. The 4X zoom function lets hunters to examine every detail it captures right in the field.\nPackage Dimensions: 6.5 x 4.0 x 3.3 inches","domain":"optical_engineering"}
{"url":"http://www.nanotechmag.com/creative-diagnostics-introduces-new-product-line-quantum-dots-researchers/","date":"2018-05-25T01:08:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866917.70/warc/CC-MAIN-20180525004413-20180525024413-00284.warc.gz","language_score":0.9184473752975464,"token_count":291,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__111856134","lang":"en","text":"The quantum dots have uniform size, tunable emission and high quantum yield, as well as good thermal stability. The electronic characteristics and band gap of quantum dots are closely related to its size and shape. By changing the size of the quantum dots, the color of emitted light shifts from blue to near-infrared, which allows the excitation and emission of quantum dots to be highly adjustable, and brings lots of applications for highly sensitive cellular imaging, photovoltaic devices, solar cells, and light emitting devices.\n“Our quantum dots are monodisperse without agglomeration and aggregation. With comprehensive characterization including TEM, UV-Vis, and DLS, and tunable emission ranging from visible to near-infrared wavelength, the quantum dots are also featured with high fluorescence intensity, good stability and long life time, containing various structures and surface ligands: core-shell, functionalized and conjugated. ” said Dr. Randy S. Vaughn, senior researcher at Creative Diagnostics.\n“Creative Diagnostics provides a comprehensive list of DiagNano™ semiconductor quantum dots with different chemical compositions and surface functionalization. You can also find the most comprehensive list of nanoparticles products with different size and surface properties to meet your needs in both research and industrial development at Creative Diagnostics,” said Dr. Jessica Waldorf, chief scientific officer of R&D department of Creative Diagnostics.","domain":"optical_engineering"}
{"url":"https://photovideo.com.au/product_info.php?cPath=1000_1100&sort=1a&products_id=1105&ceid=bed57654ff1c77ae116c351de125268c","date":"2024-04-22T21:31:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818374.84/warc/CC-MAIN-20240422211055-20240423001055-00006.warc.gz","language_score":0.8927902579307556,"token_count":227,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__114703168","lang":"en","text":"?When it is desirable to maintain a particular lens opening for sharpness or depth-of-field purposes, or simply to obtain proper exposure when confronted with too much light intensity, use a Neutral Density (ND) filter.? This will absorb light evenly throughout the visible spectrum, effectively altering exposure without requiring a change in lens opening and without introducing a color shift.\nA Neutral Density filter reduces the amount of light passing through the camera lens without changing the color of the scene.? It is especially useful in bright light conditions to help prevent overexposure.? The neutral density filter also allows proper exposure at a wider lens opening for reduce depth-of-field to highlight a key subject by making the foreground and/or background out of focus.\nThe Neutral Density filter also allows shutter speeds to produce blurred motion effects.\nAvailable in densities .3, .6 and .9 - These correspond to 1, 2 and 3 stops light reduction respectively and are sometimes represented as x2, x4 and x8.\nAlso available in a Graduated Neutral Density .6 filter.","domain":"optical_engineering"}
{"url":"http://doylex.com/Science/Microscope%20glossary.asp","date":"2023-05-29T09:44:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644817.32/warc/CC-MAIN-20230529074001-20230529104001-00380.warc.gz","language_score":0.8982034921646118,"token_count":2497,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__99666823","lang":"en","text":"Glossary of Terms\nBelow you will find\ndefinitions of terms used in\nthis site, and in microscopy in general.\nCondenser: an advanced illumination system which uses a\nlens under the stage that would typically move in the\nvertical direction. It would usually also have an adjustable\niris to control the beam diameter of the light prior to\nentering the lens. By adjusting the iris opening and the\nlens distance from the target, the user has very good\ncontrol over the amount of light and its focal point.\nUsually found on the more advanced microscope systems and\nvery useful at higher magnifications (400X and above).\nlens: a lens specially designed and coated to correct\nfor the tendency of light to separate into colors when\npassing through glass. An achromatic lens corrects this such\nthat colors are more accurate after being magnified.\nmicroscope: A compound microscope with two eyepieces\nviewing down a single optical channel and objective. This is\ndifferent than a stereo microscope,\nwhich has a separate optical channel for each eye.\nClick here for an example.\nC-mount & CS-mount: a.k.a.\nC/CS-mount, is a threaded standard developed for mounting\na lens to a camera. Most commonly used for video cameras\n(i.e., CCTV cameras, not camcorders), and is used to mount\ncameras to microscopes. The mechanical definition of both\nstandards is 1\" diameter, 32 TPI (threads per inch),\nmale on the lens (or microscope) side and female on the\ncamera side. The optical definition of the C-mount is that\nthe image reaches the focal plane, or camera's detector, at 17.5mm past the edge of\nthe lens' (or microscope's) mounting threads. The CS-mount is identical in all\nrespects except the focal plane is 12.5mm past the mounting\nthreads. A CS-mount camera can be mounted on a C-mount lens\nor microscope by using a 5mm extension ring. See also: T-mount.\nControls: A configuration where one knob is\ncentered on top of another. For example, coarse and fine\nfocus may have a larger coarse focus knob with a fine focus\nknob on top of it (so the center of both knobs is on the\nAlso commonly used for Mechanical\nStage X/Y movement knobs.\nmicroscope: Literally a microscope with multiple lenses,\nhowever that describes virtually all modern microscopes. It\nhas come to refer to a microscope such as that pictured at\nthe top of this page. It would typically include\nmultiple user-selectable objective\nlenses of varying magnifications and present a\ntwo-dimensional view. See also: stereo\nmicroscope: A microscope and video camera combination\nwith a digital output such as USB or firewire. Often\nincludes software to display the image on a PC.\nStandard Objectives: (Deutsches Institut fuer Normung)\nAn international standard which dictates the design compatibility\nof the objective lens. Therefore DIN standard objectives\nfrom one manufacturer can be used in another manufacturer's\nDIN standard compatible microscope.\nlens: a lens design that is actually two different\nlenses cemented together (usually one positive magnifier and\none negative). This design is used in widefield\neyepieces to obtain significantly better color\nperformance than single lens designs.\nmicroscope: A monocular\nmicroscope with a second, vertical viewing port. The\nvertical port can be used with an eyepiece for a second\nperson, such as an instructor, to view the specimen, or it\ncan be used with an adapter and a video or still camera.\nClick here for an example.\nSee also: trinocular microscope.\nEyepiece or Ocular:\nThe lens closest to your eye when looking through a microscope. A binocular or stereo microscope will have two,\na monocular microscope will have one. It also plays a\ncritical role in the total system magnification. See also widefield\nEyepiece Tube or Eyetube:\nThe tube into which the eyepiece lens (ocular) is set. This\nis typically presented at an angle for comfortable viewing\nsuch as in the picture at the top of this page. However it may also\nbe mounted in a vertical position such as on a trinocular or\ndual-view microscope for either a second viewer,\nor for a camera designed to fit inside an eyetube.\nframes per second: Used to indicate the speed in\nwhich a video image is refreshed and displayed on a monitor.\nIn video microscopy this is usually controlled by the\ncamera. The faster the refresh rate (number is larger), the\n\"smoother\" any movement of the specimen will appear.\nDistance: Distance between the two eyepieces. Typically\nit is adjustable to accommodate different users. Some\nmicroscopes also have graduated scales to indicate the\nactual distance between the eyepieces, allowing a user to\ndetermine the optimum number and then quickly set\nit before each use.\nillumination: A highly effective illumination design.\nPlease click here\nfor a more detailed definition.\nstage: A mechanism mounted on top, or as part, of the stage that\nallows the operator to move the specimen slide in the X or Y\ndirection by turning a knob. Very useful at higher\nmagnifications as it can be difficult to move the slide by\nhand otherwise since it must be moved such a small amount.\nAlso, moving by hand can be difficult since you must move it in\nthe opposite direction. Most mechanical stages come with a graduated scale so you can\nsee how far the slide has been moved or keep track of the\nposition of various objects on the slide.\nmicroscope: A compound microscope\nwith one eyepiece such as that pictured at the top of this\nlens: The lens in a microscope closest to the specimen.\nIn a compound microscope there are usually 3, 4 or 5 objective\nlenses allowing a selection of magnification levels.\nImmersion lens: A lens designed to be immersed in oil.\nA drop of immersion oil is placed on top of the cover glass\nand the lens is slowly lowered until it rests in the oil.\nThis allows the light to pass through oil rather than air,\nand at higher magnifications results in a crisper, higher\ncontrast image. Primarily seen on more advanced systems.\nA lens design such that specimens that appear centered in\nthe field of view at one magnification level will also\nappear centered when the magnification level is changed. See\nA lens design such that specimens that appear in focus at\none magnification will also appear focused when the\nmagnification level is changed. Keep in mind, however,\nthat depth of field (how much of a specimen's height will\nappear in focus at one time) changes significantly when\nmagnification is changed. The higher the magnification,\nthe shallower the depth of field. See also: parcentered\nPhase Contrast: A technique using\nspecial objectives and condenser system to enhance the contrast of\nunstained, relatively transparent specimens such as blood and\nother tissue cells, thereby allowing microscopic viewing of living\ntissue. It is a sophisticated technique that shifts the light\n\"phase\" 1/4 wavelength, causing any light deviated by the specimen to\nappear dark on a light background. Development of this technique\nby inventor Frits Zernike earned him a Nobel prize in physics in\n1953. An excellent, more detailed discussion of this process can be found on the\nMolecular Expressions web-site\nRack Stop: A safety feature\nconsisting of a mechanical stop, usually adjustable, which\nprevents the objective lens from\nhitting the microscope stage.\na head design where the interpupillary adjustment\n(increasing or decreasing the distance between the\neyepieces) is achieved by twisting the\neyepieces in an up and down arc motion like binoculars.\nClutch: A safety device usually located on the focus\nknob allowing the knob to \"slip\" and continue turning\nwhen it reaches the end of its travel, or if it runs into\nthe stage. Due to the gear ratios involved, without this it\nmay be possible to damage the mechanism by applying too much\nforce to the knob after it has reached the end.\nmicroscope a.k.a. dissecting microscope: A microscope\nwith a separate optical channel for each eye (eyepieces and\nobjectives) which allows viewing in three dimensions. See\nalso: compound microscope.\nor Objective Turret: The rotatable metal piece into\nwhich the microscope's objective lenses\nare attached. A \"turret\" style stereo\nmicroscope refers to the type that has more than one\nobjective lens which can then be rotated into position. On a\ncompound microscope the turret is\nthe ring holding the objective lenses allowing the operator\nto rotate them into position as needed. See the picture at\nthe top of this page.\nT-mount: A photographic mechanical\nmounting standard developed in 1957 originally intended as a\nuniversal lens mount for 35mm cameras. There are now\nT-mounts available for a large variety of digital and film\ncameras making it a good method for mounting cameras to\nmicroscopes. The thread (a.k.a. T-thread) is specified as\n42mm diameter and 0.75mm pitch, or M42-.75. See also:\nmicroscope: A binocular\nmicroscope with a third, vertical viewing port. The vertical\nport can be used with an eyepiece for a second person, such\nas an instructor, to view the specimen, or it can be used\nwith an adapter and a video or still camera. Click here\nfor an example. See also: dual-view\neyepiece (WF): an eyepiece with an achromatic\ndoublet lens designed in such a way\nthat it does not have to be limited to viewing only in its\ncenter, and the portion of the lens that allows\nnon-distorted viewing is larger than a normal lens. This\nappears to the user as a bigger aperture or \"hole\"\nto look through. It therefore has the advantage of being\neasier to use and more forgiving of a user's head movements.\nAn eyepiece listed as WF10X/18mm would indicate\nit has a widefield achromatic doublet lens, 10X\nmagnification and is 18mm in diameter.","domain":"optical_engineering"}
{"url":"http://etronicscompany.blogspot.com/2008/05/omnivisions-vision-of-cmos-sensor.html","date":"2017-05-23T18:41:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607649.26/warc/CC-MAIN-20170523183134-20170523203134-00264.warc.gz","language_score":0.9481267333030701,"token_count":273,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__95233207","lang":"en","text":"Competition is the engine of innovation, and Omnivision, seemingly right on cue, has announced their latest innovation that promises to bring an smaller 8MP CMOS camera to our 3G phones.\nWhile Sharp was looking for ways to slim a larger, denser, CMOS camera phone sensor. Omnivision was developing a new way of producing the same size sensor while doubling the image resolution.\nTheir approach, as simple as it sounds...\nwas to turn the sensor over. Dubbed OmniBSI, this changed the order of things a bit, making the silicon the first thing the light hits. This subtle switch up optimizes the silicon’s light absorption, giving the sensor better low-light sensitivity, while allowing for larger apertures and thinner cameras.\nThis isn’t the first time we seen this type of tech in phones, but Omnivision is one of the largest supplier of camera modules to phone makers. Previously, only one or two brands were making these higher resolution modules, and putting them into their own phones. Now with Omnivision no one company will have “the” high resolution camera phone... unless it's huge. Either way, this will certainly level the playing field when it comes to pricing.\nManufactures will get to fool around with these buggers starting in June.","domain":"optical_engineering"}
{"url":"https://mapenina.web.app/640.html","date":"2022-01-25T10:41:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304810.95/warc/CC-MAIN-20220125100035-20220125130035-00518.warc.gz","language_score":0.9272453188896179,"token_count":3430,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__97430946","lang":"en","text":"At the end of an exposure, the camera closes each photosite and works out how many photons fell in to each cavity. They also produce high resolution images with antishake features. In this article we explain the different sensor types and sizes. Because these cameras dont use film and because they produce pictures as data files, many folks think that digital cameras must use a radically different method of capturing images. Having an overall idea about the internal structure of a dslr camera and the functions of different components, i will use the following figure to illustrate its working principle. Each sensor returns an electrical current when its struck by the incoming light. This type of scanner has many advantages like easy digitalization of large format documents, high processing speed, and portability and so on. But yes it is actually very fascinating to know the working of a camera. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.\nDigital camera working mechanism linkedin slideshare. A digital camera or digicam is a camera that captures photographs in digital memory. Exciting practical exercises coupled with engaging theory allows participants to learn and. Seven more will be added in the final 8k by 8k imager. Images are taken in electronic format by a digital camera which is then converted to a binary format. Apr 22, 2008 even the simplest, most compact digital camera is capable of taking magazinequality shots, once the user has a working knowledge of its features. At their most basic, cameras are sealed boxes the camera body with a small hole the aperture that let light in to capture an image on a lightsensitive surface usually photographic film or a digital sensor. Digital cameras look very much like ordinary film cameras but they work in a completely different way. Essentially these are the basic components of a digital camera, since we intend to discuss only the basic principle so we do not wish to go into deep more. Digital camera video show to explain the working principle of digital camera. The same signal which turns on a transistor of one type is used to turn off a transistor of the other type. This digital image can be saved as a file to your computer and can be used to alterenhance the image or apply it to the web. When you press the button to take a photograph with a digital camera, an aperture opens at the front of the camera and light streams in through the lens. The fundamentals of camera and image sensor technology jon chouinard.\nWhen the shutter is opened, light shines through to imprint an image on photographic paper or film placed at the back of the camera. Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film. Twinlens cameras includes most compact cameras photographer looks through a second lens, which approximates the cameras eld of view singlelens reex slr cameras magic with mirrors. Pdf video camera is most important gadget for video production. Before starting to work with this program, it is necessary to. Every camera is essentially a lightproof box, with some method of letting in just a small amount of light at just the right time. In this article we are going to study digital camera working principle. Digital cameras employ an electronic sensor consisting of a large. Its all very 19thcentury compared to digital photography. Also, go through a brief explanation on the working principle of a camera, and different types of modern as well as traditional cameras.\nHere we introduce the basic principles behind digital camera technologies commonly encountered in scientific imaging. The emulsion is composed by salt containing silver whose particles are sensitive to the quantum effect of light. A multimeter ora multitester, also known as a voltohm meter or vom is, an. Mar 25, 2017 light is kept from a lightsensitive surface either chemicals on a film that react to light like silver oxide or an electronic sensor array most common these days except for a short period of time occasionally the shutter opening and clos. Mar 18, 2015 in this article, we look at the digital camera imaging sensor, providing a guide to what it is for, and how it works the image sensor is the heart of your digital camera much is made of the digital in digital camera, but the digital camera imaging sensor is the heart of a digital camera. Working of scanner electronic circuits and diagrams. The basics the basic technology of converting analog information to digital information is used as the underlying mechanism of a digital camera. Most cameras produced today are digital, and while there are still dedicated digital cameras, many more cameras are now incorporated into mobile devices like smartphones, which can, among many other purposes, use their cameras to initiate live videotelephony and directly edit and upload imagery to others.\nJan 07, 2018 this short excerpt from fstoppers full length photography 101 tutorial teaches the basics of how a dslr camera works. All photography is based on the same optical principle of viewing objects with. Working principle of video camera pdf files vrcollector. Construction and working principle of lcd display elprocus. A typical multimeter may include features such as the ability to measure. Now let us know more about a digital camera, its working, and also advantages.\nBasic parts of a camera and their functions with diagram. The fundamentals of camera and image sensor technology. Working principle of digital camerablock diagram, parameters, color filtering, pixel resolution, advantages. Conventional cameras use a chemical reaction to capture the image, fixing it on film through an emulsion. Basic webcams use relatively small sensors with just a few hundred thousand pixels typically a grid. Each pixel has a photosite, a cavity that is uncovered when you press the shutter release button. Structure of digital cameras and their working principles. Principles of digital photography sbcs global learning. Parts of an slr or dslr camera slr stands for singlelens reflex, whereas the latter stands for digital singlelens reflex. Digital camera functions all photography is based on the same. Its a semiconductor chip made of millions of tiny, lightsensitive squares arranged in a grid pattern.\nNow you must understand that the digital and ordinary camera works. A vidicon tube is a video camera tube design in which the target material is a working principle of a digital camera. Digital camera imaging sensor what digital camera, digital. So the image sensor is the electronic eye of a webcam or a digital camera. How does a digital camera work working of a digital camera. Chapter 2 basic theory how digital camera sensors record. This is shown on figure 32 sensitive surface in grey and amplifier in yellow. In the past twenty years, most of the major technological breakthroughs in consumer electronics have really been part of one larger breakthrough.\nThe working principle of an analog colour tv camera is analogous to that of a vidicon camera. The operation and properties of these cameras are outlined. Spinning disk principle microlens array pinhole array beamsplitter lens camera specimen objective excitation light parallel scanning of points arranged on a disk rotation of the disk scans the pinholes over the sample microlenses focus the incident laser light through the pinholes to increase light input light from the. Conventional cameras use a chemical reaction to capture the image, fixing. Sep 09, 2019 digital cameras look very much like ordinary film cameras but they work in a completely different way. Consumers now have the option of a number of different cameras with differentlysized sensors, all at the. Future digital cameras some feature of future digital camera goodbye, shutter button. In this article, we look at the digital camera imaging sensor, providing a guide to what it is for, and how it works the image sensor is the heart of your digital camera much is made of the digital in digital camera, but the digital camera imaging sensor is the heart of a digital camera. A new concept called reprographic cameras has paved their way for digital camera scanners. Color interpolation does not work well when no colors are. Working of digital camerablock diagram, parameters, color. The principles of digital photography is designed for persons with basic camera ability who wishes to enhance their skills. Tungsten, florescent, shade, sunny, cloudy, flash, auto and manual j filters can also be used to affect the colour of light in the image. The project is the first stage of video surveillance system creation.\nHeat radiation is available to infrared cameras at the shortwave 35 and longwave 815 ends of the spectrum, but is absorbed by moisture in the air in the center of the infrared spectrum. Digital camera functions all photography is based on the same optical principle of viewing objects with our eyes. The size of the sensors is similar to the ccds nd can be close to a micrometer in some cases. Digital camera sensors explained what digital camera. However, these two types of cameras work fundamentally differently in their image capturing. Pdf working principle of video camera researchgate. In these tubes, the cathode ray was scanned across an image of the scene to be broadcast.\nHow digital camera sensors record light on a digital camera sensor, there are millions of pixels a 1mp sensor has 1,000,000 pixels. There are two general types of cameras for making a movie. This tube is a combination of the image dissector and the emitron. But instead of focusing this light onto a piece of film, it focuses it onto a semiconductor device that records light electronically. Digital camera is an combination of array of photoelectric sensor, and the same record the incoming pattern of light. A computer then breaks this electronic information down into digital data. Digital camera fundamentals andor learning centre oxford. One of the problems raised by the cmos technology is the loss in spatial resolution due to the presence of the amplifier a on the photosite comparable to the optic nerve on the human retina. Once the light is in the box, it forms an image like in the camera obscura, causes a chemical reaction on photographic film like in the brownie camera, or energizes a photocell like in a digital camera. Pinhole cameras rely on the fact that light travels in straight lines a principle called the rectilinear theory of light.\nWhen you take a photo, the shutter lets light enter from the lens and expose the film. Several different types of tubes were in use from the early 1930s to the 1980s. When you get down to it, cds, dvds, hdtv, mp3s and dvrs are all. A scanner is a device that is used for producing an exact digital image replica of a photo, text written in paper, or even an object. Working of digital camerablock diagram, parameters, color filtering. Digital image analysis fuling yang may, 09, 2012 working principle of a digital camera digital image processing ldv, lda continued working principle of a digital camera array of optical sensors that converts light intensity into electrical signals 2. This short excerpt from fstoppers full length photography 101 tutorial teaches the basics of how a dslr camera works. Because the amount of current thats returned varies with the amount of light, your digital cameras electronic innards can combine the.\nMost all of the basic principle of these two types of cameras are the same and can be described with general camera principles. In cmos technology, both ntype and ptype transistors are used to design logic functions. At its most basic level, this is all there is to a digital camera. The working principle of the dsc is quite different from that of the conventional camera. May 23, 2015 future digital cameras some feature of future digital camera goodbye, shutter button. Digital cameras have been able to produce large print sizes for years with 6 or fewer megapixels. An ultra compact camera generally is defined as a camera that measures 1 inch or less in. Video camera tubes were devices based on the cathode ray tube that were used to capture television images prior to the introduction of chargecoupled device ccd image sensors in the 1980s. The camera, derrick story shows how to master and take advantage of everything from basic resolution settings to the latest imaging technologies. In the last few years, light measurement has evolved from a dependence on traditional emulsionbased film photomicrography, to one where electronic images are the media of choice. They all have a lens, which enables them to see things.\nBy working with digital devices researchers can observe specimens on a screen in real time or acquire and store images and quantifiable data. Cameras have various mechanisms to control how the light falls onto the lightsensitive surface. The digital camera can be considered as an alteration of the conventional analog camera. If a camera has a lens, it is not a pinhole camera. The new video camera tube developed by lubszynski, rodda and mcgee in 1934 was dubbed the superemitron. A camera is an optical instrument used to record images. A common misconception surrounds todays digital cameras. In both cases, light is reflected off of an object and passes through a lens, which focuses the light rays, onto the light sensitive retina, in the case of eyesight, or onto film or an image sensor the case of traditional or digital. Just like a conventional camera, it has a series of lenses that focus light to create an image of a scene.\nThis lesson will show you the progression of the camera from a basic pinholecamera into a modern digital camera. The green rectangle in the center about the size of a fingernail is the lightsensitive part. Actually, your family film camera and that powerhungry, batterymunching digital camera you got for christmas are remarkably similar in. Cmos technology working principle and its applications.\nThis miniature camera was inexpensive and easy to use, and versions of the brownie were still being sold into the 1960s. However, before upgrading to the 18 megapixel camera, ask yourself what you will use that massive resolution for. This isnt going to change any camera that youre going to buy today is now capable of producing large prints. Our programme, principles of digital photography, is designed for persons with basic camera ability who wish to enhance their skills. Digital cameras focus light onto a semiconductor to create a digital image. A significant majority of modern optical microscopy techniques require the use of a digital camera. Intensified ccd cameras combine an image intensifier and a. Most cameras produced today are digital, and while there are still dedicated digital cameras, many more cameras are now incorporated into mobile devices like smartphones, which can, among many other purposes, use their cameras to initiate live videotelephony and directly edit and. A digital camera, on the other hand, uses a grid or an array of photosensors to record the incoming pattern of light. Light is kept from a lightsensitive surface either chemicals on a film that react to light like silver oxide or an electronic sensor array most common these days except for a short period of time occasionally the shutter opening and clos. Without video camera, we cant imagine production of a video program. An introduction to the digital still camera technology. This causes the angle of light which is passing through the molecule of the polarized glass and also cause a change in the angle of the top polarizing filter.\nMost of the associated components are also the same, except that instead of light falling on a photosensitive film like an analog camera, image sensors are used in digital cameras. How can the photographer tell what the camera sees. It has an efficient photocathode that transforms the scene light into an electron image. Jul 11, 2011 essentially these are the basic components of a digital camera, since we intend to discuss only the basic principle so we do not wish to go into deep more. The principle behind the lcds is that when an electrical current is applied to the liquid crystal molecule, the molecule tends to untwist. Even the simplest, most compact digital camera is capable of taking magazinequality shots, once the user has a working knowledge of its features. Image from camera is formed by sequence of pixel lines scanned and displayed in one of two different ways. Command the camera to record the smell of the scene redefining ultra compact. This characteristic allows the design of logic devices using only simple switches, without the need for a pullup resistor. Every digital camera has at its heart a solidstate device which, like film, captures the light coming in through the lens to form an image.544 49 837 393 626 182 904 146 720 853 1445 475 848 1341 1436 813 1073 508 746 978 313 6 1325 97 117 874 57 898 1521 139 1493 1419 1002 1036 1303 355 1298 458 1213 558 355 727 977 1337 1393","domain":"optical_engineering"}
{"url":"https://dspace.chitkara.edu.in/jspui/handle/123456789/1978","date":"2021-12-06T01:52:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363229.84/warc/CC-MAIN-20211206012231-20211206042231-00257.warc.gz","language_score":0.8404273986816406,"token_count":490,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__9259004","lang":"en","text":"Please use this identifier to cite or link to this item:\n|Title:||Comprehensive Study on the Recent Development of PERC Solar Cell|\n|Publisher:||Institute of Electrical and Electronics Engineers Inc.|\n|Abstract:||Power conversion efficiency (PCE) is the key to developing photovoltaic (PV) industry growth. For this factor, a standard solar cell with an aluminum back surface field (Al-BSF) is used from the past decades. However, Al-BSF suffers from recombination losses that reduces PCE and is a major challenge for the PV industry. To overcome the downsides of the standard solar cell, a new straightforward technology i.e. passivated emitter rear cell (PERC) is used. It has become one of the main PV technology since it differs from the standard solar cell in terms of minimizing the optical and recombination losses. Although PERC is highly compatible and has the ability to capture more light among all other PV technologies. Further, improvement in PERC solar cell structural techniques could make PERC one of the leading cell technologies by 2030s in the industry. For the passivation layer in PERC solar cell, different passivating materials like SiO 2 , Al 2 O 3 and SiN X are used. PERC solar cell using these passivating materials enhance the PCE, reduces the light reflectance with improving light trapping and also diminish the rear side recombination losses. This review article presents the recent advancement in the development of the PERC solar cell with setup of different PCE records and structural schemes to increase the PCE.|\n|Appears in Collections:||Conferences|\nFiles in This Item:\nThere are no files associated with this item.\nItems in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.","domain":"optical_engineering"}
{"url":"https://szthz.org/?l=en-us","date":"2023-12-02T02:26:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100309.57/warc/CC-MAIN-20231202010506-20231202040506-00024.warc.gz","language_score":0.8470901846885681,"token_count":364,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__198111394","lang":"en","text":"On November 12th, 2018, the &q...details\nTerahertz radiation source based on electron injection to excite a surface plasmon;\nTerahertz radiation source based on ultrafast laser pulses and nonlinear optical crystals;\nHigh-power terahertz radiation source based on vacuum electronic terahertz gyros;\nDesign of terahertz-wave chips and solid-state devices based on GaN, graphene and nanofabrication technologies;\nDesign of array antennas based on CMOS and ceramic packaging technology;\nDesign a wideband terahertz wave FM continuous wave signal generator based on direct digital synthesis technology;\nTo develop a terahertz communication system based on optoelectronic technology, to form a flexible distribution network of fiber-wireless (Fi-Wi) for the next generation of high-frequency communication system layout;\nDevelopment of low phase noise photonic THz carrier frequency technology, making it suitable for 16QAM and above high-order modulation format;\nUtilize OFDM and other multiplexing methods to improve the spectral efficiency and promote the capacity of Terahertz wireless communication system to Tbps or higher on the basis of large bandwidth resources of terahertz carrier frequency.\nRresearch on microwave, millimeter wave and terahertz integrated circuits based on CMOS, GeSi, GaAs, GaN, etc. Mainly covers low noise amplifiers, power amplifiers, frequency sources and other chip research.\nBreakthrough microwave, millimeter-wave system integrated chip core technology, on-chip antenna research, to achieve fully integrated wireless transceiver system.\nThe on-chip testability design for terahertz chips reduces the need for external test equipment.","domain":"optical_engineering"}
{"url":"https://materials-direct.com/product/furukawa-mc-pet-m2-grade-0-5mm/","date":"2022-12-01T23:56:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710870.69/warc/CC-MAIN-20221201221914-20221202011914-00617.warc.gz","language_score":0.8378392457962036,"token_count":260,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__18949242","lang":"en","text":"Microcellular Polyethylene Terephthalate sheet For ultra high performance in luminaries for lighting, horticulture and signage applications.\nFeaturing a unique microcellular structure developed by Furukawa, MCPET offers unrivaled levels of diffuse reflectivity. As light enters the microcellular structure it bounces around the microscopic air bubbles before finally reflecting back at different angles, creating an ultra diffuse light reflection that is completely homogeneous.\nThis technology was developed exclusively by Furukawa and produces incredible levels of diffuse reflectivity. In the case of our satin finish M4 grade the diffuse reflectivity is 100.8% when compared to BaSo4 Barium Sulphate. This is market-leading performance.\nMCPET can improve luminaire performance by more than 30%\nReduces energy consumption and glare by utilising highly efficient indirect lighting solutions.\nUnique microcellular structure developed by Furukawa\nUnrivaled levels of diffuse reflectivity\nAn ultra-diffuse light reflection\nIncredible levels of diffuse reflectivity\nMicrocellular Polyethylene Terephthalate sheet For ultra-high performance in luminaries for lighting, horticulture and signage applications.","domain":"optical_engineering"}
{"url":"http://katua.me/ramsden-eyepiece-43/","date":"2018-12-10T12:58:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823339.35/warc/CC-MAIN-20181210123246-20181210144746-00311.warc.gz","language_score":0.9051611423492432,"token_count":1689,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__188168284","lang":"en","text":"Ramsden eyepiece definition, an eyepiece consisting of two plano-convex crown -glass lenses of equal focal length, placed with the convex sides facing each. Ramsden Eyepiece. It consists of two plano-convex lenses of equal focal length separated by the distance equal to two-thirds the focal length of either. a. The Ramsden eyepiece of a telescope is made of two positive lenses of focal length 2 cm each and also separated by 2 cm. Calculate its magnifying power.\n|Published (Last):||13 October 2018|\n|PDF File Size:||20.3 Mb|\n|ePub File Size:||10.97 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nThe eyepiece is placed near the focal point of the objective to magnify this image. One solution is to reduce the aberration by using multiple elements of different types of glass. Ramsden eyepiece a refracting astronomical telescope the entrance pupil is identical with the objective. Retrieved from ” https: Eyepicee focal plane is located between ramzden two lenses. For many years, simple eyepiece designs with ramsden eyepiece minimum number of internal air-to-glass surfaces were preferred to avoid this problem.\nThe lenses are of equal focal length and their separation is equal to the ramsden eyepiece length. In the Ramsden eyepiece, the two lenses are made of the same kind of glass, e.\nEyepieces are differentiated by their field stopwhich is the narrowest aperture that light entering the eyepiece must pass through to reach the field lens of the eyepiece. The focal length of the telescope objective is the diameter of the objective times the focal ratio. In effect, ramsden eyepiece Nagler is a superior version of a Barlow lens combined with a long focal length eyepiece.\nWhile convenient for the optical designer, this turned out to be less convenient from the viewpoint of practical microscopy and was thus subsequently abandoned. Ramsden eyepiece triplet corrects well ramsden eyepiece chromatic aberration. Long focal length versions exceed 0. The simple negative lens placed before the focus of the objective has the advantage of presenting an erect image but with limited field of view better suited to low magnification.\nThe eyepiece for many optical instruments is eyeiece simple magnifier. Modern designs ramsden eyepiece many lens elements, however, can correct for this, and viewing at high power becomes eyeoiece comfortable.\nPlease help to improve this article by introducing more precise citations. The second formula is actually more accurate, but ramsden eyepiece stop size is not usually specified ramsden eyepiece most manufacturers. The eye pupil should coincide with rzmsden exit pupilthe image of the entrance pupil, which in the case of an astronomical telescope corresponds to the object glass. Internal reflections, sometimes called “scatter”, cause the light passing through an eyepiece to disperse and reduce the contrast of the image projected by the eyepiece.\nDue to its dependence on properties of the particular telescope in use, however, magnification power alone is meaningless for describing a telescope eyepiece.\nTele Vue Optics, Inc. The eyepiece for many optical instruments is a simple eye;iece. The number of ramsden eyepiece in a Nagler makes them seem complex, but the idea of the design is fairly simple: It corrects well for distortion.\nThe eye relief is better than the Huygenian and worse ramsden eyepiece the Ramsden eyepieces. Amateur ramsden eyepiece tend to refer to telescope eyepieces eyepirce their focal length in millimetres. Visual astronomy of the deep sky.\nThe field lens coincides with the first principal planewhich is ramsden eyepiece for the placing of crosshairs or reticules, but inconvenient in that it highlights any dust on the lens. It finds application in high-power telescopes and range finders.\nThis occurs when the preceding lens has a narrower field stop than the eyepiece’s, causing the obstruction in the front to act as a smaller field stop rajsden front of the eyepiece. When in use, the focal length of an eyepiece, combined with the focal length of the telescope or microscope objective, to which it is attached, determines the magnification.\nThis eyepiece is armsden in reducing chromatic aberration ramsden eyepiece, doing a better job with longitudional achromatism than with lateral. Due to their low degree of distortion and the corresponding globe effectthey are less suitable for ramsden eyepiece which require an excessive panning of the instrument. Even today ramsden eyepiece eyepieces are considered eyeepiece eyepieces for ramsden eyepiece and lunar viewing.\nThe field lens coincides with the first principal planewhich is convenient for the placing of crosshairs or reticules, but inconvenient in that raksden highlights any dust on the lens.\nRamsden eyepiece | Define Ramsden eyepiece at\nBlue light, seen through an eyepiece element, will not focus to the same point but along the same axis as red light. Until recently, and still quite commonly, eyepieces of a short-focal length have had a short eye relief.\nAchromats are lens groups that ramsden eyepiece two different wavelengths of ramsfen to the same focus and exhibit greatly reduced false colour. Eyepieces The eyepiece for many optical ramsden eyepiece is a simple magnifier.\nFor the device for looking through a camera, ramsden eyepiece viewfinder. The field of view seen through an eyepiece varies, depending on the magnification achieved when connected to a particular telescope or microscope, and also on properties of the eyepiece itself. If the apparent field of view is known, the actual field of view can be calculated from the following approximate formula:.\nLow dispersion glass ramsden eyepiece also be used to reduce chromatic aberration.\nThe doublet has its concave surface facing the light source and the singlet has its almost flat slightly convex surface facing the eye. The Ramsden ramsden eyepiece comprises two plano-convex lenses of the same glass and similar focal lengths, placed less than one eye-lens focal length apart, a design created ramsden eyepiece astronomical and scientific instrument maker Jesse Ramsden eyepiece in Astronomical Equipment for Amateurs. An eyepiece consists of several ” eyepieece elements” in a ramsden eyepiece, with a “barrel” on one end.\nThe above formulae are approximations. It was invented by Hugo Adolf Steinheil around Eyepieces for telescopes and microscopes are usually interchanged to increase or decrease the magnification, and to enable the user to select a type with certain performance characteristics.\nDue to the effects of these variables, the term “field of view” nearly always refers to one of two meanings:. Carl Kellner designed this first modern achromatic eyepiece in also called an ” achromatized Ramsden “. However, if the eye relief is too large it ramsden eyepiece be uncomfortable to hold the eye ramsden eyepiece the correct position for an extended period of time, for which reason some eyepieces with long eye relief have cups behind the eye lens to aid the observer in maintaining the ramsden eyepiece observing position.\nThe effect can create a ring ramsden eyepiece false colour around point sources of light and results in a general blurriness to the image. Technology has developed over time and there are a variety of eyepiece designs for use with telescopes, microscopes, gun-sights, and other devices.","domain":"optical_engineering"}
{"url":"https://www.accel.cc/news/prospects-of-explosion-proof-led-lamp.html","date":"2019-08-18T13:41:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313889.29/warc/CC-MAIN-20190818124516-20190818150516-00280.warc.gz","language_score":0.8779871463775635,"token_count":262,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__112603798","lang":"en","text":"With the development of the Explosion Proof LED Lamp, the proportion of traditional luminaires in the market share has gradually been replaced by LED explosion-proof luminaires. So what are the advantages of LED explosion-proof lamps compared with traditional lamps?\n1. Energy-saving: Constant-voltage DC drive, the same lighting effect saves more than 80% than traditional energy-saving light source, can produce huge economic benefits.\n2. Environmental protection: The lamp does not contain toxic heavy metal pollutants such as mercury. There is no infrared or ultraviolet radiation in the spectrum, no stroboscopic, waste can be recycled, low heat, and it is a typical green light source. No mosquitoes surround the lamp body at night. The indoor lighting environment is cleaner, sanitary and tidy.\n3. Long life: LED lights are also called never-off lamps, solid cold light source, epoxy resin package, no loose parts of the lamp body, no filament blown, heat sink, light decay, etc., long service life up to 5W -10W hours.\n4. High color display: The color rendering index of LED lamps is up to 80, the color rendering index of fluorescent lamps is 65-80, and the color rendering index of incandescent lamps is 95.","domain":"optical_engineering"}
{"url":"http://temto.com/article.php?id=65","date":"2019-06-17T15:20:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998509.15/warc/CC-MAIN-20190617143050-20190617165050-00540.warc.gz","language_score":0.8255934715270996,"token_count":195,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__116590807","lang":"en","text":"TEMTO is your strategic partner for your technologies! We have full experience in optical design, coating design, prototyping, and assembly capabilities. In this issue, we would like to recommend our new product -- Drum Lens to you.\nA Drum Lens is a variation of a ball lens where a portion of the ball is ground down to a smaller diameter. These lenses are used in similar applications to those of ball lenses.For example, compact fiberoptical components, laser system, micro optical devices, optical assemblies etc...\n¡ñCylindrical Sides with Convex curvatures\n¡ñTypical Ball lens Performance\n¡ñAccurate Wavelength manipulation\n¡ñOptical Measurement Systems\n¡ñProjection Optics System\n¡ñImaging Optics Systems\nFor Drum Lens specifications and more information, please refer to websitehttp://www.temto.com/product.php?id=101","domain":"optical_engineering"}
{"url":"http://beaupngy000.mybjjblog.com/eye-surgical-procedure-3598831","date":"2018-04-22T21:33:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945660.53/warc/CC-MAIN-20180422212935-20180422232935-00224.warc.gz","language_score":0.9570936560630798,"token_count":1322,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__132369190","lang":"en","text":"Eye Surgical procedure\nEye Surgery has become a mainstream approach of vision improvement, and this article will certainly discuss the advantages and also drawbacks of three different techniques being provided to the clinical consumer.\nLasik Eye Surgical treatment\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis as well as is an eye medical system which permanently deals with vision by eliminating a thin layer of the cornea. This treatment works best on clients with moderate to high degrees of myopia (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism connected with myopia, and that have thick corneas. It is one of the most widely known medical vision modification method.\nPeople with regular eye view see objects clearly due to the fact that pictures are brought right into a right prime focus by the cornea as well as lens of the eye. Ideally, the cornea's curvature is uniformly matched to its size in a normal eye. Individuals with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the objects seen are not focused appropriately. LASIK adjustments corneal shape by exact elimination of corneal tissue, and also by doing so deals with the eyes' focusing power.\nThere are, however, threats to LASIK eye surgical procedure.\nThere is a remote chance of full loss of vision. If this occurs, it is typically due to the fact that the person had a pre-existing condition which needs to have precluded the surgical treatment to begin with, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. People with big students are also bad prospects for LASIK. Dry eye syndrome will be exacerbated by this treatment.\nA few patients complain that they permanently see \"ghost\" pictures, have blurred vision, reduced contrast and bad evening vision. When LASIK wased initially introduced, 5% of patients had post-operative complaints; nonetheless, improvements in the treatment have actually caused this price to go down to much less than 1% if LASIK is performed by knowledgeable specialists and also clients are effectively evaluated before surgical treatment. If problems do take place, they could typically be resoved by a retreatment.\nFDA has approved LASIK laser eye surgery because 1998. While there are a lot of pleased individuals, there are however no long term research studies about its effects. Recognize the constraints and also the threats of LASIK eye surgical treatment before you sigh up for the treatment.\nThough much less well known, these little implants can boost vision in clients with light to modest nearsightedness without the danger of irreversible eye damages intrinsic in the cells elimination technique of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter form. Though a see this website little less accurate compared to LASIK, they are removeable and changeable, so if the individual has an unanticipated over- or under-correction, the dental implant could be removed and also another of a various dimension inserted to acquire the wanted modification. The implants are located beside the cornea, so the main aesthetic location is totally intact and intact, and also the strength of the cornea is undiminished, making it a far better alternative for pilots and also those site web who engage in contact sporting activities where eye injury is a possibility.\nIntacs are unsuitable for serious nearsightedness and also more than small astigmatism (1.00 diopters), as the cornea could only be extended until now. If the Intacs are gotten rid of, vision returns to its preoperative degree. Apart from vision adjustment, Intacs are also used to treat keratoconus.\nIntacs are FDA authorized and Ten Years researches have actually exposed no major issues with Intacs and also few client grievances; however, due to the fact that the procedure takes extra training compared to LASIK, there are less eye surgical treatment facilities supplying it. Nonetheless, the Intacs internet site gives a checklist of professionals in each state, as well a few in Canada, Europe and also Mexico.\nDue to the fact that many individuals do not want to risk LASIK and also Intacs can not aid those with extreme vision problems, intraocular lens implants (IOL) are a brand-new choice authorized by the FDA in 2004 to correct moderate to extreme nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the type of lens implant made use of to bring back vision complying with cataract eye surgical treatment.\nThe new IOL, called the Craftsmen, is intended for only individuals who have 2.5 diopters or much less of astigmatism.\nThe artificial lens does not change the all-natural lens, yet is put in front of it. The main issue found with the dental implant was the consistent loss of endothelial cells in the corneas of individuals that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are crucial in keeping the cornea clear. A three-year study revealed a consistent stable loss of endothelial cells of 1.8 percent a year. At this moment, nobody could forecast whether this loss will certainly proceed at the exact same price indefinitely, and even its impact on corneal feature.\nTo decrease lasting impacts of the tool on the corneal endothelium, the FDA is calling for that the brand-new lenses be identified to specify that they should only be implanted in patients whose corneal endothelial cells are thick adequate to stand up to minor cell loss.\nMuch more major issues were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is calling for Ophtec to carry out a five-year follow-up survey of its implant people to much better evaluate the post-surgical incidence of cataract development, retinal detachment and also various other ocular conditions.\nThe Craftsmen lens is intended to be a permanent implant.Though it could be eliminated surgically, vision could not always return to exactly what it was prior to obtaining the lens. Because it does not influence astigmatism, people with this trouble could still require glasses.","domain":"optical_engineering"}
{"url":"https://www.jlr.org/article/S0022-2275(20)40943-5/fulltext","date":"2023-01-29T02:18:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499697.75/warc/CC-MAIN-20230129012420-20230129042420-00571.warc.gz","language_score":0.6624991297721863,"token_count":5020,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__268490516","lang":"en","text":"HISTORY OF DEVELOPMENT\nESSENTIAL FEATURES OF A HIGH-SPEED CARS MICROSCOPE\nNear IR laser excitation\nCollinear beam geometry\nForward-detection versus epi- (i.e., backward-) detection\nLaser-scanning on a confocal microscope platform\nMultimodal NLO imaging\nCoupling CARS imaging with spontaneous Raman spectroscopy\nAPPLICATIONS OF CARS MICROSCOPY TO LIPID BIOLOGY\nStudy of lipid droplet biology\nStudy of lipid metabolism in C. elegans\n- Morck C.\n- Olsen L.\n- Kurth C.\n- Persson A.\n- Storm N.J.\n- Svensson E.\n- Jansson J.O.\n- Hellqvist M.\n- Enejder A.\n- Faergeman N.J.\n- et al.\nDetection of atherosclerosis by CARS-based multimodal microscopy\nCARS imaging of intestinal lipid absorption\nStudy of lipids in cancer development\n- Iyengar P.\n- Combs T.P.\n- Shah S.J.\n- Gouon-Evans V.\n- Pollard J.W.\n- Albanese C.\n- Flanagan L.\n- Tenniswood M.P.\n- Guha C.\n- Lisanti M.P.\n- et al.\nStudy of skin biology\nStudy of myelin diseases\n- Membrane lipids: where they are and how they behave.Nat. Rev. Mol. Cell Biol. 2008; 9: 112-124\n- Myelin Biology and its Disorders.Elsevier Academic Press, San Diego, CA2004\n- SnapShot: Lipid droplets.Cell. 2009; 139 (e1021): 1024\n- Biologically active sphingolipids in cancer pathogenesis and treatment.Nat. Rev. Cancer. 2004; 4: 604-616\n- Lipid signalling in disease.Nat. Rev. Mol. Cell Biol. 2008; 9: 162-176\n- Obesity as a medical problem.Nature. 2000; 404: 635-643\n- Abdominal obesity and metabolic syndrome.Nature. 2006; 444: 881-887\n- LC-MS-based method for the qualitative and quantitative analysis of complex lipid mixtures.J. Lipid Res. 2006; 47: 804-814\n- Lipid rafts and signal transduction.Nat. Rev. Mol. Cell Biol. 2000; 1: 31-39\n- Fluorescent lipid probes: some properties and applications (a review).Chem. Phys. Lipids. 2002; 116: 3-18\n- Polyene-lipids: a new tool to image lipids.Nat. Methods. 2005; 2: 39-45\n- Fluorescent detection of lipid droplets and associated proteins.Curr. Protoc. Cell Biol. 2007; 35: 24.22.11-24.22.21\n- Large-scale fluid/fluid phase separation of proteins and lipids in giant plasma membrane vesicles.Proc. Natl. Acad. Sci. USA. 2007; 104: 3165-3170\n- Raman spectroscopy of protein and nucleic acid assemblies.Annu. Rev. Biomol. Struct. 1999; 28: 1-27\n- Ultrasensitive chemical analysis by Raman spectroscopy.Chem. Rev. 1999; 99: 2957-2976\n- Raman spectroscopy and microscopy of individual cells and cellular components.Laser Photon Rev. 2008; 2: 325-349\n- Raman and CARS microspectroscopy of cells and tissues.Analyst (Lond.). 2009; 134: 1046-1057\n- Coherent anti-Stokes Raman scattering microscopy: instrumentation, theory, and applications.J. Phys. Chem. B. 2004; 108: 827-840\n- Principles of Nonlinear Optical Spectroscopy.Oxford University Press, New York1995\n- Laser-scanning coherent anti-Stokes Raman scattering microscopy and applications to cell biology.Biophys. J. 2002; 83: 502-509\n- Chemical imaging of tissue in vivo with video-rate coherent anti-Stokes Raman scattering microscopy.Proc. Natl. Acad. Sci. USA. 2005; 102: 16807-16812\n- Theoretical and experimental characterization of coherent anti-Stokes Raman scattering microscopy.J. Opt. Soc. Am. B. 2002; 19: 1363-1375\n- Coherent anti-Stokes Raman Scattering microscopy.Appl. Spectrosc. 2007; 61: 197a-208a\n- Coherent anti-Stokes Raman scattering microscopy.Chem. Phys. Chem. 2007; 8: 2157-2170\n- Coherent anti-Stokes Raman scattering microscopy: chemically selective imaging for biology and medicine.Annu. Rev. Anal. Chem. 2008; 1: 883-909\n- Non-linear optical imaging of obesity-related health risks.J. Innov. Opt. Health Sci. 2009; 2 ([Review]): 9-25\n- Chasing lipids in health and diseases by coherent anti-Stokes Raman scattering microscopy.Vib. Spectrosc. 2009; 50: 160-167\n- Study of optical effects due to an induced polarization third order in the electric field strength.Phys. Rev. 1965; 137: A801-A818\n- Coherent anti-Stokes Raman spectroscopy.Appl. Phys. Lett. 1974; 25: 387-390\n- Introduction to Nonlinear Laser Spectroscopy.Academic Press, San Diego1988\n- Scanning coherent anti-Stokes Raman microscope.Opt. Lett. 1982; 7: 350-352\n- Three-dimensional vibrational imaging by coherent anti-Stokes Raman scattering.Phys. Rev. Lett. 1999; 82: 4142-4145\n- Characterization of photodamage in coherent anti-Stokes Raman scattering microscopy.Opt. Express. 2006; 14: 3942-3951\n- Broadly tunable dual-wavelength light source for coherent anti-Stokes Raman scattering microscopy.Opt. Lett. 2006; 31: 1292-1294\n- Polarization coherent anti-Stokes Raman scattering microscopy.Opt. Lett. 2001; 26: 1341-1343\n- Molecular vibration imaging in the fingerprint region by use of coherent anti-Stokes Raman scattering microscopy with a collinear configuration.Opt. Lett. 2000; 25: 1768-1770\n- Effect of pulse duration on two-photon excited fluorescence and second harmonic generation in nonlinear optical microscopy.J. Biomed. Opt. 2006; 11: 020501-020503\n- All-fiber CARS microscopy of live cells.Opt. Express. 2009; 17: 20700-20706\n- A multimodal platform for nonlinear optical microscopy and microspectroscopy.Opt. Express. 2009; 17: 1282-1290\n- Vibrational imaging of lipid droplets in live fibroblast cells with coherent anti-Stokes Raman scattering microscopy.J. Lipid Res. 2003; 44: 2202-2208\n- Coherent anti-Stokes Raman scattering imaging of axonal myelin in live spinal tissues.Biophys. J. 2005; 89: 581-591\n- Vibrational imaging with high sensitivity via epidetected coherent anti-Stokes Raman scattering microscopy.Phys. Rev. Lett. 2001; 87: 23901\n- In vivo coherent anti-Stokes Raman scattering imaging of sciatic nerve tissue.J. Microsc. 2007; 225: 175-182\n- Ex vivoin vivo imaging of myelin fibers in mouse brain by coherent anti-Stokes Raman microscopy.Opt. Express. 2008; 16: 19396-19409\n- Second harmonic and sum frequency generation imaging of fibrous astroglial filaments in ex vivo spinal tissues.Biophys. J. 2007; 92: 3251-3259\n- Coherent scattering in multi-harmonic light microscopy.Biophys. J. 2001; 80: 1568-1574\n- High-speed vibrational imaging and spectral analysis of lipid bodies by compound Raman microscopy.J. Phys. Chem. B. 2009; 113: 7681-7686\n- Label-free quantitative analysis of lipid metabolism in living Caenorhabditis elegans.J. Lipid Res. 2010; 51: 672-677\n- Lipid droplets: a unified view of a dynamic organelle.Nat. Rev. Mol. Cell Biol. 2006; 7: 373-378\n- Lipid droplets finally get a little R-E-S-P-E-C-T.Cell. 2009; 139: 855-860\n- The biogenesis and functions of lipid bodies in animals, plants and microorganisms.Prog. Lipid Res. 2001; 40: 325-438\n- Triglyceride accumulation protects against fatty acid-induced lipotoxicity.Proc. Natl. Acad. Sci. USA. 2003; 100: 3077-3082\n- Lipid traffic: floppy drives and a superhighway.Nat. Rev. Mol. Cell Biol. 2005; 6: 209-220\n- The lipid droplet is an important organelle for hepatitis C virus production.Nat. Cell Biol. 2007; 9: 1089-1097\n- Thematic review series: adipocyte biology. The perilipin family of structural lipid droplet proteins: stabilization of lipid droplets and control of lipolysis.J. Lipid Res. 2007; 48: 2547-2559\n- Functional conservation for lipid storage droplet association among Perilipin, ADRP, and TIP47 (PAT)-related proteins in mammals, Drosophila, and Dictyostelium.J. Biol. Chem. 2002; 277: 32253-32257\n- Nonperturbative chemical imaging of organelle transport in living cells with coherent anti-stokes Raman scattering microscopy.Biophys. J. 2006; 91: 728-735\n- CGI-58 facilitates lipolysis on lipid droplets but is not involved in the vesiculation of lipid droplets caused by hormonal stimulation.J. Lipid Res. 2007; 48: 1078-1089\n- Single-cell profiling reveals the origin of phenotypic variability in adipogenesis.PLoS ONE. 2009; 4: e5189\n- Direct imaging of the disruption of hepatitis C virus replication complexes by inhibitors of lipid metabolism.Virology. 2009; 394: 130-142\n- Finding function in novel targets: C-elegans as a model organism.Nat. Rev. Drug Discov. 2006; 5: 387-398\n- Obesity and the regulation of fat metabolism.The C. elegans Research Community, WormBook, 2007 (In WormBook, ed)\n- Something worth dyeing for: molecular tools for the dissection of lipid metabolism in Caenorhabditis elegans.FEBS Lett. 2010; 584: 2183-2193\n- C-elegans fat storage and metabolic regulation.Biochim. Biophys. Acta. 2009; 1791: 474-478\n- C-elegans: a model for exploring the genetics of fat storage.Dev. Cell. 2003; 4: 131-142\n- The influence of bacterial diet on fat storage in C. elegans.PLoS ONE. 2009; 4: e7545\n- Monitoring of lipid storage in Caenorhabditis elegans using coherent anti-Stokes Raman scattering (CARS) microscopy.Proc. Natl. Acad. Sci. USA. 2007; 104: 14658-14663\n- The autofluorescent “lipofuscin granules” in the intestinal cells of Caenorhabditis elegans are secondary lysosomes.Mech. Ageing Dev. 1986; 35: 79-94\n- Rapid accumulation of fluorescent material with aging in an oxygen-sensitive mutant mev-1 of Caenorhabditis elegans.Mech. Ageing Dev. 1994; 74: 161-170\n- Genetic dissection of polyunsaturated fatty acid synthesis in Caenorhabditis elegans.Proc. Natl. Acad. Sci. USA. 2002; 99: 5854-5859\n- Statins inhibit protein lipidation and induce the unfolded protein response in the non-sterol producing nematode Caenorhabditis elegans.Proc. Natl. Acad. Sci. USA. 2009; 106: 18285-18290\n- C. elegans major fats are stored in vesicles distinct from lysosome-related organelles.Cell Metab. 2009; 10: 430-435\n- Genome-scale analysis of in vivo spatiotemporal promoter activity in Caenorhabditis elegans.Nat. Biotechnol. 2007; 25: 663-668\n- Automated on-chip rapid microscopy, phenotyping and sorting of C. elegans.Nat. Methods. 2008; 5: 637-643\n- Molecular, cellular and functional imaging of atherothrombosis.Nat. Rev. Drug Discov. 2004; 3: 913-925\n- Predicting plaque rupture: enhancing diagnosis and clinical decision-making in coronary artery disease.Vasc. Med. 2000; 5: 163-172\n- From vulnerable plaque to vulnerable patient: a call for new definitions and risk assessment strategies: Part I.Circulation. 2003; 108: 1664-1672\n- Label-free molecular imaging of atherosclerotic lesions using multimodal nonlinear optical microscopy.J. Biomed. Opt. 2007; 12: 054007\n- Label-free imaging of arterial cells and extracellular matrix using a multimodal CARS microscope.Opt. Commun. 2008; 281: 1813-1822\n- Imaging and quantitative analysis of atherosclerotic lesions by CARS-based multimodal nonlinear optical microscopy.Arterioscler. Thromb. Vasc. Biol. 2009; 29: 1342-1348\n- Multimodal CARS microscopy determination of the impact of diet on macrophage infiltration and lipid accumulation on plaque formation in ApoE-deficient mice.J. Lipid Res. 2010; (In press)\n- Multiplex coherent anti-Stokes Raman spectroscopy images intact atheromatous lesions and concomitantly identifies distinct chemical profiles of atherosclerotic lipids.Circ. Res. 2010; 106: 1332-1341\n- Multimodal nonlinear optical imaging of atherosclerotic plaque development in myocardial infarction-prone rabbits.J. Biomed. Opt. 2010; 15: 020501\n- Towards CARS endoscopy.Opt. Express. 2006; 14: 4427-4432\n- Fiber delivered probe for efficient CARS imaging of tissues.Opt. Express. 2010; 18: 2380-2388\n- Minimally invasive high-speed imaging of sarcomere contractile dynamics in mice and humans.Nature. 2008; 454: 784-788\n- Bariatric surgery for morbid obesity.N. Engl. J. Med. 2007; 356: 2176-2183\n- Pilot clinical study of an endoscopic, removable duodenal-jejunal bypass liner for the treatment of type 2 diabetes.Diabetes Technol. Ther. 2009; 11: 725-732\n- Intestinal lipid absorption.Am. J. Physiol. Endocrinol. Metab. 2009; 296: E1183-E1194\n- A dynamic, cytoplasmic triacylglycerol pool in enterocytes revealed by ex vivo and in vivo coherent anti-Stokes Raman scattering imaging.J. Lipid Res. 2009; 50: 1080-1089\n- Inhibition of triglyceride synthesis as a treatment strategy for obesity: lessons from DGAT1-deficient mice.Arterioscler. Thromb. Vasc. Biol. 2005; 25: 482-486\n- Intestine specific expression of acyl CoA:diacylgylcerol acyltransferase 1 (DGAT1) reverses resistance to diet-induced hepatic steatosis and obesity in Dgat1−/− mice.J. Lipid Res. 2010; (In press)\n- Lipid-rich carcinoma of the breast: a clinicopathologic analysis of 13 examples.Cancer. 1973; 33: 812-819\n- H-1 MR spectroscopy detection of lipids and lactate in metastatic brain tumors.NMR Biomed. 1996; 9: 65-71\n- Rosen's Breast Pathology. 3rd ed.Lippincott Williams & Wilkins, New York2008\n- Fatty acid synthase and the lipogenic phenotype in cancer pathogenesis.Nat. Rev. Cancer. 2007; 7: 763-777\n- Fatty acid synthase: a metabolic enzyme and candidate oncogene in prostate cancer.J. Natl. Cancer Inst. 2009; 101: 519-532\n- Coherent anti-Stokes Raman scattering imaging of lipids in cancer metastasis.BMC Cancer. 2009; 9: 42\n- Microfluidic CARS cytometry.Opt. Express. 2008; 16: 5782-5789\n- Microfluidic electroporation of tumor and blood cells: observation of nucleus expansion and implications on selective analysis and purging of circulating tumor cells.Integr. Biol. 2010; 2: 113-120\n- Nonlinear optical imaging to evaluate the impact of obesity on mammary gland and tumor stroma.Mol. Imaging. 2007; 6: 205-211\n- Adipocyte-secreted factors synergistically promote mammary tumorigenesis through induction of anti-apoptotic transcriptional programs and proto-oncogene stabilization.Oncogene. 2003; 22: 6408-6423\n- How matrix metalloproteinases regulate cell behavior.Annu. Rev. Cell Dev. Biol. 2001; 17: 463-516\n- Navigating ECM barriers at the invasive front: the cancer cell-stroma interface.Annu. Rev. Cell Dev. Biol. 2009; 25: 567-595\n- Cancer cell metabolism: Warburg and beyond.Cell. 2008; 134: 703-707\n- Understanding the Warburg effect: the metabolic requirements of cell proliferation.Science. 2009; 324: 1029-1033\n- Mechanisms of sensory transduction in the skin.Nature. 2007; 445: 858-865\n- Quantitative detection of chemical compounds in human hair with coherent anti-Stokes Raman scattering microscopy.J. Biomed. Opt. 2009; 14: 044019\n- Demyelinating diseases - new pathological insights, new therapeutic targets.N. Engl. J. Med. 1998; 338: 323-325\n- Basic Neurochemistry: Molecular, Cellular, and Medical Aspects.Raven Press Ltd., New York1994\n- Coherent anti-stokes Raman scattering imaging of myelin degradation reveals a calcium-dependent pathway in lyso-PtdCho-induced demyelination.J. Neurosci. Res. 2007; 85: 2870-2881\n- Glutamate excitotoxicity inflicts paranodal myelin splitting and retraction.PLoS ONE. 2009; 4: e6705\n- real-time in vivo assessment of the nerve microenvironment with coherent anti-Stokes Raman scattering microscopy.Plast. Reconstr. Surg. 2009; 123: 123s-130s\n- Effective repair of traumatically injured spinal cord by nanoscale block copolymer micelles.Nat. Nanotechnol. 2010; 5: 80-87\n- Quantitative myelin imaging with coherent anti-Stokes Raman scattering microscopy: alleviating the excitation polarization dependence with circularly polarized laser beams.Opt. Express. 2009; 17: 18419-18432\n- Multimodal nonlinear optical microscopy and applications to central nervous system imaging.IEEE J. Sel. Top. Quantum Electron. 2008; 14: 4-9\n- Compact coherent anti-Stokes Raman scattering microscope based on a picosecond two-color Er:fiber laser system.Opt. Lett. 2009; 34: 2847-2849\n- High-power picosecond fiber source for coherent Raman microscopy.Opt. Lett. 2009; 34: 2051-2053\n- Increasing the imaging depth of coherent anti-Stokes Raman scattering microscopy with a miniature microscope objective.Opt. Lett. 2007; 32: 2212-2214\n- The Principles of Nonlinear Optics.John Wiley and Sons Inc., New York1984\n- Time-resolved coherent anti-Stokes Raman scattering microscopy: imaging based on Raman free induction decay.Appl. Phys. Lett. 2002; 80: 1505-1507\n- Background free CARS imaging by phase sensitive heterodyne CARS.Opt. Express. 2008; 16: 15863-15869\n- Heterodyne coherent anti-Stokes Raman scattering (CARS) imaging.Opt. Lett. 2006; 31: 241-243\n- High-sensitivity vibrational imaging with frequency modulation coherent anti-Stokes Raman scattering (FM CARS) microscopy.Opt. Lett. 2006; 31: 1872-1874\n- Femtosecond stimulated Raman microscopy.Appl. Phys. B. 2007; 87: 389-393\n- Label-free biomedical imaging with high sensitivity by stimulated Raman scattering microscopy.Science. 2008; 322: 1857-1861\n- Analysis and experimental assessment of the sensitivity of stimulated Raman scattering microscopy.Opt. Express. 2009; 17: 3651-3658\n- Vibrational imaging based on stimulated Raman scattering microscopy.N. J. Phys. 2009; 11: 033026\n- Vibrational imaging of tablets by epi-detected stimulated Raman scattering microscopy.Analyst (Lond.). 2010; (10.1039/C0AN00252F)\n- Label-free, real-time monitoring of biomass processing with stimulated Raman scattering microscopy.Angew. Chem. Int. Ed. 2010; 49 (10.1002/anie.201000900)\nThis work is supported by a Ruth L. Kirschstein NRSA postdoctoral fellowship F32HL089074 to T.T.L. and R01EB007243 and a Showalter grant to J-X.C.\nUser licenseCreative Commons Attribution (CC BY 4.0) |\n- Read, print & download\n- Redistribute or republish the final article\n- Text & data mine\n- Translate the article\n- Reuse portions or extracts from the article in other works\n- Sell or re-use for commercial purposes\nElsevier's open access license policy","domain":"optical_engineering"}
{"url":"https://www.vimpexsafetysolutions.co.uk/adaro-torches","date":"2022-08-14T23:53:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572089.53/warc/CC-MAIN-20220814234405-20220815024405-00267.warc.gz","language_score":0.8917558789253235,"token_count":611,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__200950458","lang":"en","text":"Made from premium raw materials, Adaro Torches have built an enviable reputation for for their extreme durability long lifespan.\nEvery torch features advanced engineering and comes with ATEX approval, that's why they are trusted by UK emergency services teams.\nAdaro Torches boast some of the lightest, smartest and brightest safety torches on the market today.\nOur wide range of robust and reliable Adaro Torches are fully supported by our service and maintenance activities.\nAdaro Safety Torches\nHigh performance rechargeable LED safety torches designed for the emergency services and other demanding professionals. The ADALIT range includes the L-10, the first re-chargeable flashlight to be specifically designed for firefighting helmets and the high-powered L-3000 which combines revolutionary optics with a large digital display. The versatile L5 and L5R Plus can be used both as a hand torch and on the helmet.\nThe L-5000 is the lightest, smartest and brightest hand torch on the market. Featuring a swivelling head, digital display and complex optics. It is suitable for work in the toughest conditions.\n- Rechargeable, handheld and lightweight\n- 3 different intensity settings\n- Head rotates to three different positions\n- 110,000 candle power\nA range of high performance professional safety torches that combine elegant design with high intensity LEDs, revolutionary optics and a large digital display.\n- LED Engine technology with a step light system\n- Booster function to illuminate long distances with intense beams\n- Digital display - battery level indication in hours and minutes\nBoth the L5 Plus and L5R Plus can be used either handheld or helmet-mounted - each set includes a rotating bracket that allows the light to be directed through 360°. Using high intensity LEDs and a bright LED ‘back light’, the R5 series is compatible with the vast majority of firefighting and rescue helmets.\n- Rechargeable Li-Ion and Alkaline versions\n- Features bright red LED 'back light' for easy identification of colleagues\n- ATEX Approved for hazardous area use\n- Sensor controls light intensity for efficient power management\n- Light duration from 4 to 30 hours - low battery warning\n- Lightweight - IP67 Rated\nUltra-lightweight design with full helmet integration, The ADALIT L-10 LED flashlight combines leading-edge technology with a Li-ion re-chargeable power pack to deliver high performance and increased safety and comfort for the firefighter.\n- Compatible with all leading firefighting and rescue helmets\n- Bright LED with excellent vision\n- Back light for colleague identification\n- Rechargeable Li-Ion\nExcellent Adaro performance in a pen-type format. Supplied with strong magnetic attachment accessory to mount to helmets or other objects.\n- Pen-type torch with superior performance\n- Supplied with powerful magnet for mounting to helmets\n- Powered by 2 x AAA batteries\n- 18+ hours burn time","domain":"optical_engineering"}
{"url":"http://pricewatch.vrzone.com/19204/olympus-announces-new-stylish-and-colorful-vh-520-compact-camera/","date":"2017-11-24T07:52:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934807146.16/warc/CC-MAIN-20171124070019-20171124090019-00231.warc.gz","language_score":0.9264326095581055,"token_count":179,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__28321479","lang":"en","text":"The new compact shooter comes in a variety of colors and features Olympus’s iHS Technology, which promises superior image quality.\nOlympus has just announced the new Stylus VH-520 compact camera, a 14 megapixel shooter that touts a combination of both style and substance. To achieve the latter, the compact employs the company’s iHS Technology and dual image stabilization, with the former promising better low light performance and quicker auto-focus. The shooter also offers a variety of photo filters and a ‘Beauty Mode’ function to cater to your creative inclinations. Other specifications include a 10x optical zoom lens, 3-inch LCD display as well as 1080p video recording capabilities.\nThe VH-520 comes in black, white, red and purple and is available from all authorised retailers at a recommended retail price of S$258.","domain":"optical_engineering"}
{"url":"https://dcpos.ingrammicro.eu/news/news/stylish-new-look-same-rugged-system-1","date":"2023-09-27T17:58:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510319.87/warc/CC-MAIN-20230927171156-20230927201156-00189.warc.gz","language_score":0.8555871844291687,"token_count":138,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__123766716","lang":"en","text":"Stylish New Look – Same Rugged System\nApril 22, 2021\nThe new Datalogic best-in-class mobile computer, the Skorpio X5, is now empowered to face even tougher enterprise challenges with the ability to read close and very far barcodes in the blink of an eye. The Skorpio X5 offers the choice between Linear Imager, Standard 2D Imager, Mid-Range Imager, and the unrivalled 2D near-far Extra-long Range (XLR). The innovative Extra-Long-Range imager is perfect for all applications where the same device must seamlessly read codes at different distances, up to 20 m.","domain":"optical_engineering"}
{"url":"http://gaultav.com/rentals_event/office-presentation/page/2/","date":"2021-01-20T10:31:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703519984.9/warc/CC-MAIN-20210120085204-20210120115204-00287.warc.gz","language_score":0.7767085433006287,"token_count":441,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__64780560","lang":"en","text":"Zoom lens replaces the existing prime lens on a projector and allows the projector to be used in a variety of new applications. Extend the range of the projector and produce brilliant images.\nSpecial Fixed Focal Length Lens\nSpecial fixed lenses are optimized to a specific focal length or purpose. Optical performance is much better, because they have fewer moving parts.\n- Extend the Range of Projector\n- Optimal Performance\n- Easy to Use\nRolling Projection Cart\nAllows for easy storage and transportation. Rolling Projection Cart comes with drape to hide miscellaneous equipment on the carts lower shelves.\n- Simple Transportation\n- Layered Shelving\nOverhead Projector Acetate Rolls & Sheets Purchase\nOverhead projector acetate rolls are used for crisp and clear presentation images. Use with permanent or non-permanent markers and can be wiped clean to use again.\n- Crisp & Clear Presentation\nDa-Lite Adjustable Projector Stand\nThe Da-Lite Adjustable Projector Stand has telescoping aluminum legs for easy transportation. The non-skid platform supports up to 125 lbs. with legs completely extended.\n- Adjustable Height\n- 125 LBS. Weight Limit\n- Non-Skid Platform\n35mm Wireless Projector Remote Control\nUsed with the 35mm projector and gives mobility to control the projector around a large space.\n3-Tier Projector Stacker\nStackable projector stand can give you up to 3 tiers for layers of storage and equipment.\n- Adjustable Tiers\n- Extra Storage Space\n16mm Movie Projector\nUses 16 millimeter film to project movies with a stop-and-go movie effect.\n- Nostalgic Movie Experience\nFlipchart Stand & Accessories\nFlipchart stand helps when presenting information. The heavy duty flipchart has a tray for markers and holds up to 50 lbs. Flipchart pad sold separately.\nDigital Speaker Timer\nDigital Speaker Timers are great for Speaking Presentations and the LED display has green, yellow and red lights visible from 90\" feet away.\n- Wireless Remote Control\n- Visual Time Indicators\n- Optional Buzzer","domain":"optical_engineering"}
{"url":"https://www.biotrend.com/en/brand/Signalway-antibody?id_cat=4117&id=37","date":"2021-09-22T02:33:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057303.94/warc/CC-MAIN-20210922011746-20210922041746-00391.warc.gz","language_score":0.9202364087104797,"token_count":225,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__69067837","lang":"en","text":"Mounting Media without DAPI\nAfter the immunofluorescence protocol, samples should be mounted between slide and coverslip for microscopy analysis. For this, it is necessary to use a suitable fluorescence mounting medium in order to fix the samples on the slide and prevent their dehydration. In addition, the mounting media increase the index of refraction.\nSome mounting media contain additives such as DABCO, an anti-fading agent that protects the sample against photobleaching. Depending on the fluorochromes used, some anti-fading agents are more effective than others. In addition, there are also mounting media containing DNA dyes (such as DAPI). Thanks to these mounting media, it is possible to color the cores during assembly.\nThere are mounting media capable of polymerizing, these media are very widely used for fluorescence microscopy. Thanks to these mounting media it is possible to keep the samples for a long time if they are protected from light, the only factor determining the shelf life is the fluorochrome used whose fluorescence intensity decreases with time.\nPrice Excl. VAT","domain":"optical_engineering"}
{"url":"https://www.lobue2020eyes.com/technology/","date":"2023-12-10T00:38:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100989.75/warc/CC-MAIN-20231209233632-20231210023632-00437.warc.gz","language_score":0.9022707939147949,"token_count":819,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__170385469","lang":"en","text":"Dr. Thomas LoBue and the team at LoBue Laser & Eye Medical Centers believe it is important to invest in technology and equipment that makes treatment safer, more precise and more effective for our patients. No expense is spared when it comes to the safety and comfort of our patients as we improve their eye health and vision. The following is a sample of the technology we offer at our practice.\nLaser-assisted and ORA-Guided Cataract Surgery\nDr. LoBue uses laser technology to enhance the safety and precision of cataract surgery. The advanced femtosecond laser replaces handheld surgical tools for many steps in the cataract fragmentation and removal process. It creates clean incisions to access the cataract-diseased lens that are more likely to heal without complications. Then the laser softens the lens before fragmenting it into small pieces; this requires less energy than the ultrasound energy used in traditional cataract surgery, making this step of the procedure less risky.\nOther forms of technology are also available for a fully customizable experience. For example, prior to surgery, integrated optical coherence tomography (OCT) is used to capture high-resolution images of the eye; this information is then used to plan and perform surgery to the exact specifications of the patient. The ORA system provides continuous optical status throughout the procedure, making astigmatism correction and lens implant power more accurate. The Verion image-guided system helps Dr. LoBue take the pre-operative images he needs, then plan out the procedure and guide him during surgery.\nORA – Intraoperative Astigmatism and Intraocular lens calculation.\nPanOptix and Toric Lenses\nAfter a cataract has been successfully removed from the eye using the advanced technology described above, the lens is replaced with an intraocular lens implant (IOL). The better and more advanced the IOL, the less dependent the patient is on glasses after cataract surgery.\nDr. LoBue offers a variety of vision-restoring IOLs, including the PanOptix trifocal IOL, which enables clear vision and enhanced image quality at virtually any distance. Another option is the toric lens for correction of astigmatism.\nOptical Coherence Tomography (OCT)\nIn addition to its use in cataract surgery, optical coherence tomography or OCT is also used by Dr. LoBue in the management of glaucoma and other retinal diseases.\nNot all of Dr. LoBue’s technology is designed for cataract patients. He uses state-of-the-art optical coherence tomography (OCT) to actively manage glaucoma and other retinal diseases. The system allows the doctor to take high-resolution cross-section images of the biological structures of the eye to detect problems and monitor progression of the disease.\nCorneal topography is a diagnostic tool that produces a detailed, three-dimensional map of the surface of the cornea. The information obtained by the Pentacam corneal topography system is used to understand the shape and power of the cornea and to help diagnose, monitor and treat a number of eye conditions. Corneal topography is also useful when fitting contact lenses or planning laser vision correction.\nEndothelial Cell Count\nThe cornea, or clear covering of the eye, is lined with special cells known as endothelial cells. Adequate endothelial cell density is required for any patient seeking treatment with phakic intraocular lenses or implantable contact lenses for refractive errors. Using specular microscopy technology, Dr. LoBue can check endothelial cell density pre-operatively and monitor it periodically following implantation of the artificial lenses to ensure the continued health of the endothelium.\nLearn More about Our Technology\nFor more information about the technology used at LoBue Laser & Eye Medical Centers, please call or email our practice today.","domain":"optical_engineering"}
{"url":"http://www.cruz-diezfoundation.org/en/collection/chromatic-induction/induction-chromatique-b4.html","date":"2013-05-19T11:00:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368697420704/warc/CC-MAIN-20130516094340-00019-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9401237964630127,"token_count":193,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__188597342","lang":"en","text":"Induction Chromatique Serie B 4/4\n100 x 100 cm\nChromatic Inductions are closely related to the phenomenon of post-image, which is also known as the retinal persistence effect. This means that if a viewer stares at a red plane briefly and then looks away, the retina preserves the image for a few seconds, but the image appears green, which is the induced color or complementary color.\nThese phenomena occur separately, one after the other; Chromatic Inductions, however, reproduce them all at the same time. They therefore manage to stabilize—and render visible—a phenomenon which can only be captured fleetingly and in very special circumstances.\nFurther to his experiments with the phenomenon of retinal persistence, Cruz-Diez also produced Douche d’Induction Chromatique [Chromatic Induction Booth] in 1965 and Induction à double fréquence [Double Frequency Inductions] in 1986.","domain":"optical_engineering"}
{"url":"https://brightsidestore.com/3-5x30-rgb-laser-sight-dot-tri-illuminated-compact-tactical-scope-with-fiber-optics-green-sight/","date":"2024-04-16T04:22:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817043.36/warc/CC-MAIN-20240416031446-20240416061446-00816.warc.gz","language_score":0.8489587306976318,"token_count":544,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__150764579","lang":"en","text":"Unveil Precision with Every Shot\nIntroducing the 3.5X30 RGB Laser Sight Dot & Tri-Illuminated Tactical Scope, a cutting-edge solution for marksmen seeking unmatched accuracy and reliability. Designed for versatility, this compact scope brings a new level of precision to your shooting experience, whether it’s on the range or in the field.\nThe 3.5X30 is equipped with a powerful 3.5x magnification and a 30 mm diameter objective lens, ensuring a clear and broad view. Its high-definition imaging offers unparalleled clarity, making every target appear within easy reach. Crafted from aviation-grade magnesium alloy, this robust scope stands up to the toughest conditions, being both waterproof and shock-proof. The integrated RGB laser sight dot and tri-illuminated reticle provide optimal visibility in various lighting conditions, enhancing your aiming precision. The versatile 20mm track slot ensures compatibility with a wide range of rifles and cameras, making it a multifunctional tool for various applications.\nWhen Best to Use\nPerfect for outdoor enthusiasts and professionals alike, the 3.5X30 excels in diverse environments. Whether you’re engaging in tactical exercises, hunting in challenging terrains, or capturing stunning wildlife photography, this scope is your reliable partner. Its robust construction and precision optics make it ideal for use in harsh weather conditions, providing clear visuals and steady aim.\nWhat Makes It Special\nWhat sets the 3.5X30 apart is its blend of advanced technology and user-friendly design. The fiber optics green sight ensures quick target acquisition, while the RGB laser sight dot allows for pinpoint accuracy. The easy-to-install design, requiring no additional tools, makes it a convenient addition to your gear. And, while it operates with a cell battery (not included), its energy-efficient design ensures extended use.\n- Enhanced Accuracy: High-definition optics and laser sight for precise targeting.\n- Durable Design: Waterproof and shock-proof, crafted from aviation magnesium alloy.\n- Versatility: Suitable for a range of uses, from shooting to photography.\n- Easy Installation: Compatible with 20mm tracks, no extra tools needed.\n- User-Friendly: Simple operation, suitable for both amateurs and professionals.\nTake Your Skills to the Next Level\nReady to transform your shooting experience? Upgrade to the 3.5X30 RGB Laser Sight Dot & Tri-Illuminated Tactical Scope. With its unparalleled precision, rugged build, and versatile use, it’s the perfect tool to enhance your precision in any scenario. Order now and experience the difference in your next adventure!","domain":"optical_engineering"}
{"url":"https://www.side.cr/tech-could-turn-whole-windscreen-into-a-head-up-display/","date":"2021-12-06T10:43:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363292.82/warc/CC-MAIN-20211206103243-20211206133243-00005.warc.gz","language_score":0.9053137302398682,"token_count":346,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__4798292","lang":"en","text":"Volvo has funded a startup that could transform car windshields in to massive heads-up displays.\nThrough its venture capital arm, Volvo Cars Tech Fund Venture Capital, the Swedish automaker invested an undisclosed sum in optical and imaging tech firm Spectralics.\nIsraeli startup Spectralics created what they call a multi-layer thin combinationr (MLTC). It’s a film that can be applied to transparent surfaces—like windshields.\nVolvo claims that the MLTC films allow images to be projected onto walls, creating a larger head-up display with virtual objects layered above the actual windshield view. It could allow for a more immersive experience than the existing augmented-reality head-up display we have seen in 2021 Mercedes-Benz S-Class.\nVolvo Concept Recharge\nVolvo indicated that other uses could include in-cabin sensing filters and projections from forward-facing cameras, to lessen blind spots.\nVolvo has not discussed when the technology may be available for commercialization or whether it will ever see production cars. An investment may be the first step in a more long-term relationship that might see Volvos with MLTC tech in the future.\nThe automaker invested previously in Silicon Valley-based lidar startup Luminar and announced in 2020 that roof mounted Luminar lidar sensors would be included in its production vehicles starting in 2022. Based on the SPA2 architecture, the first vehicles to receive lidar technology will be produced.\nVolvo stated that the next generation XC90 would launch SPA2 in 2022. The automaker confirmed the electric XC90. However, gasoline-powered hybrid and plug in hybrid powertrains will likely continue.","domain":"optical_engineering"}
{"url":"http://www.tenveo-video-conference.com/video-conferencing-camera/meeting-room-usb-3-0-camera.html","date":"2019-02-23T11:10:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249500704.80/warc/CC-MAIN-20190223102155-20190223124155-00392.warc.gz","language_score":0.674363911151886,"token_count":917,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__141774684","lang":"en","text":"Meeting Room USB 3.0 Camera\nUSB3.0, HD-SDI,DVI； OSD menu ； 2.14 mega pixel ； HD1080P 10X optical zoom ； Pan: 0-340° Tilt :0°~120° PELCO -D/P, RS-232, RS-485, IR remote control\nTEVO-HD103U meeting room usb 3.0 camera\nKnown as one of the leading manufacturers and suppliers in China, we now warmly welcome you to wholesale our advanced meeting room usb 3.0 camera with low price. With the aid of advanced equipment and technology, we can assure you the high quality and good performance of our equipment.\n2.14 mega pixel（16：9）\n1080p 25/30/50/60fps，1080i 50/60fps、720p 50/60fps\n10x optical zoom, F=4.7-94.0mm\nNear-end 55.5°～Far-end 3.0°\n8 to 1/ 10, 000s，Auto\nIR remote control supports 9 presets, PELCO Protocol supports 256 presets\nVI SCA，P E LCO -D/P\nVideo output pixel\n1 080P50/60 1080P25/30 1080i 50/60 720P60/ 50\nHD- SDI，USB3.0，DVI ,\nApplicable desktop installation/ceiling mounting\nDC12 V/ 1A\nDC 12Vpower adaptor, IR remote control, manual, RS232 cable, USB 3.0 cable, Brackets & screws\nT EVO-HD103U 2.14 mega effective pixel, 1/2.8\" Exmor CMOS, built in HD movement. Resolution:1980x1080p 25/30/50/60fps. It combines a high-quality HD color video camera with the flexibility of remote pan/tilt/zoom operation. Smooth, high-speed pan/tilt operation, 16x9 aspect ratio images and a built-in 10x optical zoom/wide angle lens, make the TEVO- HD103U ideal for small to medium size conference rooms. It supports SONY VISCA, PELCO P/D, RS232C and RS422 communication protocol.\nThe HD meeting room usb 3.0 camera is widely used in Remote business meeting, online product launches, video conference, distance learning, telemedicine, church, court, chain store and so on.\n1. Is it easy to operation?\n--Yes, Setting up a conference room with Tenveo doesn’t require a technology degree — just connect the camera to a TV and the internet, give it power and pair it to your account to start making calls. There simply isn’t a more powerful or easier-to-use video conferencing solution available.\n2. What is the resolution of your cameras?\n--We have 1920x1080p@60fps progressively output, and 1080p@30fps also 720p@30fps.\n3. What is the Video Connector?\n--There are USB 2.0, USB3.0,HDMI,HD-SDI，DVI,YPBPR and CVBS Video output.\n4. What are the zoom of your video conference cameras?\n--Support fixed focus, 3X 10X, 20X, 30X optical zoom.\n5. How to control this Camera?\n--There are RS232, RS485 PTZ Control, and also support VISCA, PELCO-P, PELCO-D to control through your Codec or PC through RS232, and support IR remote control.\n6. Which kind of software compatible with this Camera?\n--It’s compatible with PolyCom, Blue Jeans, Cisco, Vsee, GoToMeeting, Radvision, SeeVogh, WebEx, easy meeting, Vidtel and working with Microsoft Lync Software, and ZOOM.US, SKYPE, VIDYO Etc.\nSZ Tenveo video technology Co.,LTD\nAdd.: Room511-514,Fengtian New tech building, North Xuegang Road, Longhua New dist,Shenzhen,CN.","domain":"optical_engineering"}
{"url":"https://pickleballchalet.com/products/gearbox-vision-eyewear-blue-lens","date":"2023-05-28T15:37:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644309.7/warc/CC-MAIN-20230528150639-20230528180639-00759.warc.gz","language_score":0.8847801089286804,"token_count":139,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__112741145","lang":"en","text":"The All New Vision Blue Eyewear is the latest addition to Gearbox’s assortment of eye protection. The blue tint helps reduce glare, enhance clarity and contour images so that you can keep your eye on the ball. This eyewear is impact-rated with the highest safety standards to keep your eyes safe on the court in the event of an impact. Designed for racquetball, pickleball and paddleball. This eyewear offers UV400 protection and may be used for both indoor and outdoor play.","domain":"optical_engineering"}
{"url":"http://qikan.cqvip.com/Qikan/Article/Detail?id=1557539","date":"2020-04-08T10:03:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371810807.81/warc/CC-MAIN-20200408072713-20200408103213-00461.warc.gz","language_score":0.7972193360328674,"token_count":315,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__81879565","lang":"en","text":"The survey of dual wavelength crystal lasers is introducted in this paper. Our research results on dual wavelength crystal lasers are described mainly. These are as follow:oscillation condition of a simultaneous multiple wavelength laser has been established and used to analyze the possibility of simultaneous oscillation in various neodymiumhost crystals,such as Nd : YAG, Nd : YLF, Nd : BEL and Nd': YA103(YAP) crystals at transitions from ~4F_(3/2)—~4I_(11/2) and ~4F_(3/2)—~4I_(13/2). It shown that this kind of laser can be realized in all the described crystals in a pulsed state. In general, continuous wave operation, however, can only be achieved in Nd : YAP crystal. On the basis of these results, the CW dual wavelength crystal lasing has been achieved for the frist time by using Nd : YAP crystal.The output power of 1079.5 nm and 1341.4 nm was 23.9 W and 25. 4 W respectively.The Nd : YAG and large energy Nd : YAP dual wavelength pulsed lasers were also acquired. The experimental results show that the temporal and spatial overlops of both beams were quite good for both lasers. In addition, we has obtained 1655 nm and 1663 nm dual wavelength and 2711 rim, 2730 nm and 2795 nm three wavelength Er : YAP lasers.\nChinese Journal of Lasers","domain":"optical_engineering"}
{"url":"https://biotexturas.org/www/?page_id=97","date":"2023-12-10T10:40:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00594.warc.gz","language_score":0.9259138107299805,"token_count":388,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__286809167","lang":"en","text":"HomeScope is a digital system. Its brain is a Linux operating system running on a Raspberry Pi computer (RBPi) which is in conversation with two Arduino micro-controllers which are configured as two-state automata; i.e. they can be listening to or executing RBPi wishes. These wishes are transmitted via a custom pin protocol (2 bits per degree of motion) which can be set using the wiring Pi library to read and write to the RBPi GPIO pins.\nHomeScope robotic capabilities (XYZ movement) are used to focus (Z axis) the image/video capture plane (image sensor) of the RBPi camera into a plane within the biological texture living within HomeScope’s cell culture and to scan (XY axes) its spatial distribution. Focus and spatial scanning wishes are executed by the Arduino systems: Arduino Z controls a stepper motor via EasyDriver control and use it to focus on the sample. For direct interaction with a user, two Push buttons are hooked to the Arduino. Arduino XY controls the PlotterBot Tiny CNC micro-robot holding our biological sample to scan it by taking image captures at different spatial locations. A user can interact with the CNC system directly via a Joystick and read its servo coordinates via a LCD display.\nAn optical system, consisting of an optical tube, one objective, and a focal lens needs to be aligned with the Illumination system for magnification of the sample. A single white LED light which is connected to the PWM pin of the RBPi as well as to a potentiometer to control the illumination system. For fluorescent microscopy, a UV LED must be added to the illumination system, while also using anti-UV coating of the focal lens to protect the camera sensor. A RBPi Camera (image) sensor is located at the focal plane of the optical tube and it’s used to capture images and video.","domain":"optical_engineering"}
{"url":"http://juliuslcqb604.jiliblog.com/5140734/eye-surgical-procedure","date":"2018-06-18T07:50:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267860089.13/warc/CC-MAIN-20180618070542-20180618090542-00472.warc.gz","language_score":0.9546048641204834,"token_count":1319,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__169411579","lang":"en","text":"Eye Surgical treatment has actually become a mainstream approach of vision correction, as well as this write-up will explain the advantages as well as disadvantages of three different approaches being provided to the clinical customer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis and also is an eye surgical system which completely deals with vision by getting rid of a thin layer of the cornea. This procedure works best on clients with modest to high levels of nearsightedness (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and astigmatism related to nearsightedness, and that have thick corneas. It is one of the most well-known surgical vision modification approach.\nPeople with regular eye view see objects clearly because images are brought right into a proper prime focus by the cornea and also lens of the eye. Preferably, the cornea's curvature is equally matched to its length in a normal eye. Individuals with astigmatism, myopia or hyperopia have off-and-on shaped corneas, so the items seen are not concentrated properly. LASIK changes corneal shape by accurate removal of corneal tissue, and also by doing so remedies the eyes' focusing power.\nThere are, nevertheless, threats to LASIK eye surgery.\nThere is a remote chance of full loss of vision. If this takes place, it is generally because the client had a pre-existing condition which must have precluded the surgery in the first place, such as pregnancy, cataracts, joint inflammation, diabetes, glaucoma, or lupus. Individuals with huge pupils are additionally inadequate prospects for LASIK. Dry eye disorder will be intensified by this procedure.\nA few clients complain that they completely see \"ghost\" pictures, have blurred vision, decreased contrast as well as poor night vision. When LASIK wased initially introduced, 5% of people had post-operative grievances; nonetheless, refinements in the procedure have actually created this rate to drop to less compared to 1% if LASIK is carried out by competent experts and individuals are effectively evaluated prior to surgery. If issues do happen, they could usually be resoved by a retreatment.\nFDA has approved LASIK laser eye surgical treatment given that 1998. While there are a great deal of satisfied clients, there are nevertheless no long-term research studies concerning its results. Recognize the limitations and the risks of LASIK eye surgical treatment before you sigh up for the procedure.\nThough less well known, these little implants could enhance vision in individuals with moderate to modest myopia without the danger of long-term eye damages intrinsic in the tissue removal method of LASIK. Intacs are semi-circular disks implanted in the cornea which stretch it to think a flatter shape. Though a little much less specific compared to LASIK, they are removeable and also changeable, so if the patient has an unanticipated over- or under-correction, the dental implant could be eliminated and an additional of a different size inserted to acquire the wanted improvement. The implants lie at the edge of the cornea, so the central aesthetic location is entirely undamaged as well as undamaged, and also the stamina of the cornea is undiminished, making it a much better choice for pilots and those that participate in get in touch with sports where eye injury is an opportunity.\nIntacs disagree for serious myopia and also more than small astigmatism (1.00 diopters), as the cornea could just be extended up until now. If the Intacs are removed, vision returns to its preoperative degree. In addition to vision improvement, Intacs are additionally made use of to deal with keratoconus.\nIntacs are FDA accepted as well as One Decade researches have actually disclosed no significant troubles with Intacs and also few patient complaints; nonetheless, since the procedure takes extra training than LASIK, there are fewer eye surgical procedure centers using it. However, the Intacs website gives a checklist of professionals in each state, also a few in Canada, Europe and also Mexico.\nBecause many individuals do not want to take the chance of LASIK as well as Intacs could not assist those with severe vision issues, intraocular lens implants (IOL) are a brand-new choice approved by the FDA in 2004 to remedy moderate to extreme nearsightedness. The Craftsmen lens, manufactured by Ophtec, resembles the kind of lens implant made use of to recover vision adhering to cataract eye surgical procedure.\nThe new IOL, called the Craftsmen, is intended for just patients that have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not replace the natural lens, yet is inserted before it. The main issue found with the implant was the steady loss of endothelial cells in the corneas of individuals that got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are vital in keeping the cornea clear. A three-year research study revealed a consistent steady loss of endothelial cells of 1.8 percent a year. At this moment, no person could predict whether this loss will certainly continue at the same rate forever, and even its influence on corneal function.\nTo decrease lasting results of the device on the corneal endothelium, the FDA is requiring that the new lenses be identified to specify that they ought to only be implanted in people whose corneal endothelial cells are thick adequate to stand up to minor cell loss.\nMuch more serious problems were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to carry out a five-year follow-up study of its implant clients to that site better analyze the post-surgical incidence of cataract advancement, retinal detachment as well as other ocular illness.\nThe Artisan lens is meant to be an irreversible implant.Though it can be removed surgically, vision might not always return to exactly what it was prior to getting the lens. Since it does not impact astigmatism, individuals visite site with this issue may still need glasses.","domain":"optical_engineering"}
{"url":"http://www.serengeti-eyewear.com/experience/lenses.aspx","date":"2014-04-25T02:23:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00636-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.8769239783287048,"token_count":163,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__107618835","lang":"en","text":"One of the secrets to the world’s finest driving glasses is the Serengeti lens.\nSerengeti® makes two types of lenses, glass and Polar PhD. Both lens feature Sereneti’s incredible photochromic technology, which should come as no surprise because Serengeti pioneered this technology. These Photochromic lenses ensure that your eyes remain fatigue-free throughout the day regardless of the light conditions. So whether you choose glass or Polar PhD lenses, they come with the advanced Photochromic technology that gives you everything you’d ever need.\nIt takes forward thinking technology to produce a lens this far ahead of everything else. Read More\nSee the Barnerini lens manufacturing facility that blends ultra-modern technology with handcrafted artisan design. Read More","domain":"optical_engineering"}
{"url":"https://quirkygiftsmalta.com/product/round-infinity-tunnel-light-and-mirror/","date":"2024-04-13T13:38:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816734.69/warc/CC-MAIN-20240413114018-20240413144018-00097.warc.gz","language_score":0.915507972240448,"token_count":276,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__112460258","lang":"en","text":"Round Infinity Tunnel Light and Mirror\nThe Infinity Mirror is on another level compared to normal mirrors. It’s a stunning talking piece that’s also perfectly usable as a normal mirror for everyday use.\nAn Infinity Mirror contains two mirrors with different transmissivity and reflectivity, that combine to create the illusion of infinite space. The surface at the back of the Infinity Mirror is 100% reflective – exactly like an everyday mirror – but the front surface is only 50% reflective and therefore casts back about half of the light that hits it. This means that some of the light escapes through the front mirror and into your eye. The rest is bounced back off the rear mirror, then into the front mirror again, and this process continues off to infinity – hence the name.\nWhen you sandwich strips of LED lights (42 in this case) between the two mirrors, a little bit of light escapes each time and each successive LED will look a little bit dimmer until they gradually disappear. The Infinity Mirror is a great visual stimulant that can be used in everyday life and is guaranteed to make anyone look ‘out of this world’.\nThe mirror is 23cm in diameter.\nRequires 3 x AA batteries (not included).\nCan also be used with an AC adaptor (not included).\n5 in stock","domain":"optical_engineering"}
{"url":"http://xtremeopticsinc.com/services/low-vision-specialist/","date":"2020-06-04T19:36:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347458095.68/warc/CC-MAIN-20200604192256-20200604222256-00175.warc.gz","language_score":0.9127846956253052,"token_count":509,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__197543433","lang":"en","text":"Xtreme Optics creates the most attractive and practical low vision lenses possible for individuals with visual disorders and visual impairments, such as hemianopia and double vision resulting from visual field loss, traumatic brain injury or stroke. This low vision gallery showcases just a few of our custom low vision lens products, including prism inserts, yolk inserts, tri prism inserts and more. We encourage opticians to contact us with their unique optical prescription needs.\nEmail Xtreme Optics or call us today at 877.248.1072 or in Atlanta at 678.838.6800 with any questions concerning low vision client needs, products and more.\nClick on a thumbnail image below to see additional images.\nXtreme Optics provides all your low vision products and services, including high prismatic lenses, split prism lenses and prism inserts with options from a full array of AR coatings, wrapped frames, sunglasses and more. We make each low vision lens to the individuals patient’s specification, employing the skill and creativity necessary to create difficult prism cuts while finding innovative ways to make the finished product as attractive and practical as possible. Our low vision lenses typically fall into the following three areas:\nPrisms for Hemianopia\nPrisms for Double Vision\nOur optic lab specializes in low vision and prismatic lenses for such optical consequences as hemianopia and cranial nerve palsy. In cases of hemianopia, trauma to the brain from a stroke or other injury causes a patient to experience an extensive loss of vision in either one eye or both eyes, while cranial nerve palsy can create a double vision effect. In both cases as well as other low vision consequences, custom made specialty low vision lenses can provide real relief and positive results in the vision and lives of the patients affected.\nFounder and president Joe Nelson has worked for more than 30 years in optical labs and was instrumental in the development of the first low vision REKINDLE™ and Prism Maker lenses for low vision patients. Joe works hand-in-hand with practitioners and researchers to develop creative solutions to the most challenging of designs. His experience and technique are invaluable to optician practitioners searching for the best options and real solutions for their low vision clients.\nXtreme Optics President and Founder, Joe Nelson, has a reputation for excellence. He has been working in lens laboratories for 32 years, developing innovative, attractive and creative solutions for the visually impaired and creating a standard of excellence for all his lens products.","domain":"optical_engineering"}
{"url":"https://dynewskiphotography.com/sinar-information-no-28/","date":"2024-02-22T23:47:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473871.23/warc/CC-MAIN-20240222225655-20240223015655-00703.warc.gz","language_score":0.9240522980690002,"token_count":1393,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__77255916","lang":"en","text":"For the ultimate image\nSINAR COLOR CONTROL Filter\nProfessional filter technique\nEven with sophisticated scanners and process techniques the printed reproduction of a photograph can only be as good as the image supplied by the photographer.\nControlled subject brightness range, established by careful spot exposure readings in the film plane is just one aspect. Equally vital is professional colour control for a specific impact. The result the client gets should need no further explanation – it must make its point in creative content and technical perfection.\nDenis Savini’s filter expertise\nA masterful application of the SINAR COLOR CONTROL filter system is Zurich photographer Denis Savini’s fruit still life.\nThe shot involved four separate, carefully planned exposures, based on detailed readings with the SINARSIX Digital exposure metering system. The working aperture was set at 1/22.\nSavini started by meticulously arranging the still life subject itself, lit it carefully and used the movements of the 8 x 10″/18 x 24 cm SINAR p2 for precise sharpness distribution control. The first exposure recorded the blue shaded background. For this, Savini evenly lit a white wall and achieved the shaded effect with a graduated blue filter. Thanks to the large filter movement possible in the 125 mm filter holder, the photographer could adjust the graduation to his precise requirements. In this ingenious filter mounting you can freely rotate the filter to run the graduation at any angle to the image edge. The system even takes two graduated filters of different colours, displaced against each other.\nSavini controlled the power of the flash illuminating the background to allow an exposure at a constant working aperture (1/22) used for the first three part exposures. The fluorescent tubes and the foreground flashes were switched off for this exposure.\nMatching the film’s colour balance\nThe second exposure was the subject itself, with the background lighting switched off. Savini used a CC1 OB colour correction filter (blue of 0.1 density) for colour balance matching, to correct the slightly yellowish film rendering. A preliminary exposure test established the filter required for the emulsion in use.\nThe closely spaced CC filter steps in the SINAR COLOR CONTROL filter range are ideal for this as they cover densities down to 0.025 in every colour.\nSpecial light correction\nThe third part exposure of 8 sec at the same working aperture was solely for the fluorescent tube in the background. The discontinuous mixed spectrum of fluorescent lighting usually calls for initial tests. These involve a reading with a colour temperature meter, followed by an exposure test on the film, at the intended exposure time and with the filter combination suggested by the reading. For the blue/red balance the colour temperature meter indicates a reddish or bluish conversion filter, plus a green or magenta CC filter to correct the green band of the tube emission. Savini’s readings and tests suggested an 81 C conversion filter plus a CC15M correction filter.\nIncidentally, in the SINAR COLOR CONTROL filter system there is no need to combine CC10 and CC05 filters for a 0.15 density – all colour sets include a CC15 filter.\nThe star effect\nThe final step was the star exposures. For this, Savini marked on the 8 x 10″/18 x 24cm ground glass screen all the locations where he wanted the stars. To superimpose the stars, he first drilled a tiny hole in a thin black metal plate and placed this directly in front of the concentrated beam of a conical lamp head. This is easier still with the bellows hood mask 2 whose four roller blinds can be closed down to form a square aperture of any required size anywhere in the image area. The camera was then set up in the light axis and adjusted to make the illuminated hole appear at the first marked location on the screen. Savini exposed it with electronic flash at 1/5.6, using an 8fold star effect filter in front of the lens. The same CC10B filter as for the main exposure again served to correct the response of the film emulsion. To enhance the cool rendering of the star, Savini added a light blue 38 LB contrast filter. This procedure was repeated for every star.\nThe filter holders of the SINAR COLOR CONTROL filter system can easily accomodate three filters at a time. But a suitable hood must carefully screen the filters against any extraneous stray light.\nFor the ultimate image\nSavini’s working sketches\nEven a masterful style, with expert camera and lighting technique plus a near perfect filter system is not enough – methodical exposure metering and consistent procedure are equally important. Savini keeps a working sketch on which he meticulously marks every spot meter reading for each part exposure. He then adjusts the output of each flash generator and with an instant-print exposure checks each calculated effect on the whole exposure.\nDaydreaming with the camera\nThe professional gets a real kick out of producing top-class pictures with sophisticated application of view camera techniques.\nInitially, Savini only wanted a Polaroid instant picture to record the camera setup for his workbook – as he does with all exposures. But he got so fascinated with the illustrative documentation that it turned into a picture in its own right.\nSavini fitted a 165 mm SuperAngulon lens on his second SINAR p – already set up to expose the stars – and with the swings defined a sharp plane from the front edge of the table at the left to the side of the camera at the left. He then directed a lamp at the black p2 and measured and adjusted the setup in his usual thorough way. For his self-imposed exercise Savini again used two separate exposures: The first for the subject and the camera, the second just for the ground glass screen image.\nNeedless to say, the photographer again relied on his expertise in filter control.\nFor if you look closely, there is the screen image in perfect colour, like the original shot – but what of the colours of the subject itself? And what happened to the table leg? Ask Savini. He will mount the polarising filter and a knowing smile .\nBut if you want to know more about the full SINAR COLOR CONTROL filter range and all the things you can do with it with view, rollfilm and miniature cameras, consult the SINAR COLOR CONTROL filter brochure.\nSINAR LTD SCHAFFHAUSEN\n8245 Feuerthalen/Switzerland Telephone (053) 54527 /48921\nTelex 897106 sina ch\nTelefax 3 (053) 57833\nCopyright, including all translations, by SINAR LTD SCHAFFHAUSEN\nPrinted in Switzerland – October 1986 ® Registered trade name","domain":"optical_engineering"}
{"url":"https://ayy.saloart.it/g35-led-headlight-conversion.html","date":"2021-06-22T20:47:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488519735.70/warc/CC-MAIN-20210622190124-20210622220124-00603.warc.gz","language_score":0.8669103980064392,"token_count":534,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__64390268","lang":"en","text":"Made to effectively replace linear fluorescent tubes, T5 LED tubes are an energy efficient alternative for linear fixtures, strip lights, shop lights, and troffers. LED tube lights not only operate on a fraction of the wattage, but also perform up to 50,000 hours. These T5 LEDs come in Kelvin temperatures ranging from 3000 Kelvin to 5000 Kelvin.\nOur LED lights for on-road and off-road vehicles are the highest-performing LED lights on the market today. Baja Designs was the first company to develop a forward projecting LED light bar, which was introduced and used in the 2005 Baja 1000. Revolutionizing industry leading LED and Laser off-road lights is our passion.\nBuy Krator LED H13 Headlight Conversion Bulbs 40W 4000LM Light Bulbs 9008 Hi/Lo 6000K White with Built-In Turbo Cooling Fan Compatible with 2006-2011 Mercury Grand Marquis from Walmart Canada. Shop for more Exterior Car Lighting available online at Walmart.ca\nDegree of conversion of etch-and-rinse and self-etch adhesives light-cured using QTH or LED. Faria-e-Silva AL(1), Lima AF, Moraes RR, Piva E, Martins LR. Author information: (1)Department of Dentistry, School of Dentistry, Federal University of Sergipe, Aracaju, SE, Brazil. [email protected]\nSonar Infiniti G35 Black LED Halo Projector Headlights (aka Spyder Infiniti G35 Black LED Halo Projector) can be a great upgrade to replace old or worn out stock head lights on your prized G35. Halo LED Projector head lights use a convex lens to project the light of your low beams over a wider area, increasing the overall viewing area of your G35's headlamps.\nH7 LED Head Light Conversion Kit STEDI Headlight 5700K. Verified Genuine Philips ZES emitters. AU $129.99: Postage: Free. Time left: 5d 7h 28m. Enlarge.\nLED Ceiling Lights Online Showroom. Shop Our Selection of LED Ceiling Lights. Buy LED Ceiling Lighting or LED Ceiling Lights, LED Flushmounts with Free Shipping and Save!\nLED car lights from Precision LED perform amazingly based upon what you read about LED light bulb reviews. We carry LED dome lights, daytime running lights, HID Conversion kits, interior LED lights and more for your car. We have developed LED lighting packages designed specifically for each and every car model.","domain":"optical_engineering"}
{"url":"http://www.superversivesf.com/2017/07/26/every-window-power-supply/","date":"2019-09-15T13:22:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514571360.41/warc/CC-MAIN-20190915114318-20190915140318-00007.warc.gz","language_score":0.925929844379425,"token_count":247,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__190450103","lang":"en","text":"Vladimir Bulović of electrical engineering and computer science (left), Miles Barr PhD ’12 (right), and Richard Lunt (below) are making transparent solar cells that could one day be deposited on everyday objects from mobile devices to windows, turning surfaces everywhere into low-cost energy-harvesting systems. This research was supported by the MIT Center for Excitonics, an Energy Frontier Research Center funded by the US Department of Energy. Photo: Justin Knight\nMIT researchers are making transparent solar cells that could turn everyday products such as windows and electronic devices into power generators—without altering how they look or function today. How? Their new solar cells absorb only infrared and ultraviolet light. Visible light passes through the cells unimpeded, so our eyes don’t know they’re there. Using simple room-temperature methods, the researchers have deposited coatings of their solar cells on various materials and have used them to run electronic displays using ambient light. They estimate that using coated windows in a skyscraper could provide more than a quarter of the building’s energy needs without changing its look. They’re now beginning to integrate their solar cells into consumer products, including mobile device displays.","domain":"optical_engineering"}
{"url":"https://www.csie.ntu.edu.tw/~hsinmu/site/projects/2018-lampshade.html","date":"2023-10-03T10:13:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511075.63/warc/CC-MAIN-20231003092549-20231003122549-00284.warc.gz","language_score":0.8775402307510376,"token_count":307,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__241527765","lang":"en","text":"Inertial measurement unit (IMU) has long suffered from the problem of integration drift, where sensor noises accumulate quickly and cause fast-growing tracking errors. Existing methods for calibrating IMU tracking either require human in the loop, or need energy- consuming cameras, or suffer from coarse tracking granularity. We propose to augment indoor inertial tracking by reusing existing indoor luminaries to project a static light polarization pattern in the space. This pattern is imperceptible to human eyes and yet through a polarizer, it becomes detectable by a color sensor, and thus can serve as fine-grained optical landmarks that constrain and correct IMU’s integration drift and boost tracking accuracy. Exploiting the birefringence optical property of transparent tapes – a low- cost and easily-accessible material – we realize the polarization pattern by simply adding to existing light cover a thin polarizer film with transparent tape stripes glued atop. When fusing with IMU sensor signals, the light pattern enables robust, accurate and low-power motion tracking. Meanwhile, our approach entails low deployment overhead by reusing existing lighting infrastructure without needing an active modulation unit. We build a prototype of our light cover and the sensing unit using off-the-shelf components. Experiments show 4.3 cm median error for 2D tracking and 10 cm for 3D tracking, as well as its robustness in diverse settings.\nThe work is presented in ACM MobiSys 2018 as a full paper. [DOI]","domain":"optical_engineering"}
{"url":"https://www.bell-labs.com/our-research/publications/294075/","date":"2017-11-21T02:56:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806310.85/warc/CC-MAIN-20171121021058-20171121041058-00742.warc.gz","language_score":0.9018202424049377,"token_count":317,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__189950915","lang":"en","text":"Microfluidic Cooling of Photonic Integrated Circuits (PICS)\nIt is widely believed that the current telecommunications network is required to grow by more than 10X in the coming years to satisfy the demands placed on it by an increasing number of connected devices, in particular content streaming to mobile devices. To enable this growth, significant enhancement in the bandwidth capacity of Photonics Integrated Circuits (PICs) is necessary. Contemporary high density PICs represent a significant thermal management challenge particularly for active optical components such as laser arrays. Each individual laser operates under tight, sub ambient temperature limits (0.1C) and extremely high heat fluxes (over 1kW / cm2). In addition, adjacent lasers require different operating temperatures, meaning local tuning of the thermal management solution. Thermoelectric modules (TEMs) and resistive heaters are currently used to achieve thermal control, however this method is limited by the packages environment and poor efficiency. In order to enable the next generations of PICs, Bell Labs Thermal Management Research Group in collaboration with the CTVR Telecommunications Research Centre has identified the need to move to a liquid based micro Fluidics cooling solution that can tackle the high heat fluxes while providing thermal control of individual optical devices within the photonics package. In this paper, the ongoing activities surrounding the integration of microfluidics within photonics packages are presented. This includes novel microscale pump and heat exchanger designs that are being developed to address key areas that currently limit the practical implementation of microfluidics cooling.","domain":"optical_engineering"}
{"url":"https://www.iwearvr.net/products/insta360-camera-4k-spherical-vr-video-camera-360-degree-sony-8mp-cmos-video-image-dual-lens","date":"2017-05-27T21:23:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463609061.61/warc/CC-MAIN-20170527210417-20170527230417-00473.warc.gz","language_score":0.8263651132583618,"token_count":410,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__86173901","lang":"en","text":"Insta360 real time stitching video camera - Dual 4K cameras with 230-degree fisheye lenses allow the Insta360 to see the world from every angle. Each image sensor features a resolution of 2048 x 2048, which results in a post-stitch final resolution of 4096 x 2048. This 17:9 aspect ratio format qualified as \"cinema-spec\" - aka DCI - 4K. The Insta360 combines the images from both cameras in real-time so that you can get a sense of the final effect while recording. Mount it on a tripod, fly it with a drone, or just hand-hold it.\n- Dual 230 Degree Fisheye Lenses\n- Real Time Stitching and Preview\n- Virtual Panning with Smartphone\n- Wi-Fi support and free software insta360 Studio plugin\n- 5000mAh battery\nDual 230 Degree Fisheye Lenses\nThe incredible field of view afforded by dual 230-degree fisheye lenses allows the Insta360 to capture for 360 x 360-degree panoramic video. Real-time stitching blends the images together, producing a seamless transition from one image to the other.\nReal-Time Stitching and Preview\nThe images from the two cameras are merged together in-camera to give you a live feel for the effect. This feature also enables you to stream the images live - no more waiting on image stitching in post.\nLink the Insta360 with compatible VR headsets to get a fully immersive experience. With head tracking, as you turn your head, the image will pan in your field of view.\n|Drone/Aircraft||Virtual Reality Headset||Real Estate||Performance / Events / Meetings|\n|Product Dimensions||1.9 x 2.9 x 6.2 inches|\n|Item Weight||15.7 ounces|\nWhat is in the box:\n- Insta360 4K Video Camera\n- Power Supply\n- USB Cable\n- Quick Guide","domain":"optical_engineering"}
{"url":"https://www.twhipoint.com/en/product_detail.asp?nid=7","date":"2023-02-03T01:40:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500041.2/warc/CC-MAIN-20230202232251-20230203022251-00852.warc.gz","language_score":0.898446798324585,"token_count":1043,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__49301173","lang":"en","text":"The 700F LED offers two independently growth areas making this model ideally suited for applications where smaller experiments need to be conducted in different environments, all in a small footprint. The standard lighting system of the 700F LED provides a broad based light spectrum for plant growth using a combination of Red, IR and Blue LED lights. LED lights allows a flexible choice of wavelength for larger panel of experiments. Morphology Analysis is done by capturing a series of images at intervals ranging from seconds to hours apart. Time lapse, areas measuring at different moment, the analysis software is a powerful tool who will convert the analysis in results.\nLEDs present many advantages over alternative light sources including lower energy consumption, longer lifespan, smaller size, faster switching, less heat and greater durability/reliability. Typical LED lifespan is rated at 50,000 hours at which point light output has degraded only 30% from new.The output percentage of different light can be controlled simultaneously and the respective operating frequency and time can be set accordingly. The two compartments conditions can be set differently. 6 channels with frequency, duty ratio, intensity, phase shift ratio can be managed individually.\nHumidity Range: 40% – 90%Uniformity: ±3% @ 80% RH\nLow energy ultrasonic humidity generator available.Humidity affects plants in growth chamber directly by conditioning transpiration and other gas exchange and indirectly by modifying the plant’s energy balance and physical and biological environments. The most significant and direct influence of humidity on plants is on transpiration, the evaporation of water from plant surfaces into the atmosphere. Transpiration generally increases as humidity decreases.\nTemperature range: 10°C ˜ 50°C\nThe 700F LED has a perfect temperature control thanks to its proportional system in which the rate of heating and cooling is propor tional to the deviation of temperature from the set point. The design of the 700F LED and its technology also allows to obtain a perfect temperature uniformity. The 700F LED is equiped with the last technology in term of LED growth chamber.\nCO2 Control:CO2 Range: 0 – 5000ppm\nSoftware pack for PC/Laptops, enabling data monitoring, logging and managing operations directly on a computer.\nEthernet/Wifi and other connections\nCo2 controlling Unit\nEC/Ph meter with measure on touch screen panel\nRO water system\nHEPA/charcoal Air Filter\nLow temperature Kit\nOther LED Wavelengths on demand\nPlant Morphology Analyzer: Time-lapse photography thanks to the CCD camera allows to easily observe the development of the plant in interaction with the different elements. Time-lapse photography is done by capturing a series of images at intervals ranging from seconds to hours apart. When the images are viewed in rapid succession, much like a flip book, the effect is to compress into a short period, the changes that occurred over a relatively long period of time. Comparing the different succession of pictures allows the searcher to compare the effect of the variation of light, temperature, humidity and CO2 on the growth of the plant.\nContrary to the 700F LED where the camera is mounted on top of the instrument and images are taken from above, on the 700F LED the cameras are side mounted. This is the method of choice to monitor luminescence and fluorescence signals in leaves and shoot meristems.Yet, in many research projects it is necessary to monitor gene expression in roots and shoots and correlate to growth morphology. In order to not disturb the gravitropic behaviour the seedlings have to be maintained upright in their natural vertical orientation. The laterally mounted camera and the rotating table holding the trays with the seedlings in a vertical orientation are the solution. Videos from sequence measurements can be instantly created within a video software. Multiple or multiday measurements are managed through a scheduler, so that the software doesn’t need to be active all the time. Thanks to the powerful batch manipulation features e.g. small changes in the scaling can be applied to other images within seconds","domain":"optical_engineering"}
{"url":"https://www.everythingvintage.com.au/spotting-scope-a-tool-useful-for-more-than-recreational-hunting/","date":"2024-04-18T11:04:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.28/warc/CC-MAIN-20240418093630-20240418123630-00776.warc.gz","language_score":0.9319154024124146,"token_count":1233,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__39099453","lang":"en","text":"Do you enjoy hunting or target shooting in your spare time? If either of these activities strikes a tone of familiarity with you, then not only are you comfortable with being outdoors, you’ve also probably entertained thoughts about outdoor optic devices.\nAfter all, it’d almost be unthinkable trying to undertake either of these activities without a pair of binoculars. But in spite of their range, portability, and reasonable price tags, they’re hardly the end-all if steady-handed, long-distance viewing is what you’re after.\nTelescopes, on the other hand, are incredible optic devices, but lack any semblance of the versatility, portability, and reasonable pricing that would justify bringing one along on a short- or medium-length excursion. There is, however, an option that’s positioned perfectly between binoculars and telescopes that’s compact and rugged enough to take hunting or camping, but still packs all the visual acuity of larger, typically stationary optical devices. And their price belies their performance. Yes, it’s scopes.\nThe focus on scopes\nWhen crystal clarity at long distance is what you need, whether it’s tracking a boar at 500 yards at twilight, or reading targets downrange at 800 yards in broad daylight, you can count on a spotting scope to bring everything into focus.\nThese waterproof, shockproof, HD optic devices are easy to recognize from their angle-shaped bodies – but don’t let their less-than-comfortable looks fool you. They’re manufactured with straight bodies too, and yet it’s their classic, unconventional shape that provides the perfect ergonomic adaptation for how they’re most commonly deployed. For prone or low-lying positions (where the natural inclination is to hold one’s head down over long periods), and for viewing at upward angles as opposed to straight ahead.\nRegardless of the body style though, there’s no change in the characteristic low-light performance, image sharpness, and wide field of viewing traits that scopes are known for. It’s their ability to instantly allow either extra coarse or superfine viewing adjustments that makes them ideal for any outdoor activity where high magnification, steadiness, and portability matter.\nIt’s these points, in fact, that relate most directly to the questions that need to be asked when an individual’s considering which type of spotting scope to buy:\n- How much magnification do I need?\n- How can I mount the device?\n- How much of a factor is the device’s size?\nLet’s take a moment and address each of these questions.\nMagnifications of 20-60x or better is what you’d expect from a high-end scope. It means the scope will magnify an object between 20 and 60 times its actual size. A scope’s objective lens, i.e. the lens at the very front, determines the amount of light the scope is allowing in to power the magnification. Large objective lenses are what gives scopes their tremendous low-light viewing capability and they go hand in hand with superior magnification for making spotting scopes superior to any binocular, as well as most telescopes.\nA stable support platform is mandatory to take full advantage of a scope’s superior magnification. Supporting one by hand will get tiring after a few minutes, outright undoable if you’re spotting game for hours, which is why a scope would typically be mounted on a tripod if the user is on foot, or on a window mount if spotting from a vehicle. Low-standing tripods are a particular preference of game hunters because it allows them to stay in their prone position, unexposed, and without any movement, reflections, or commotion that’s bound to alert prey.\nWeight and mass matter when you’re on the trail, and although scopes don’t carry or stow away as conveniently as binoculars, they’re infinitely more portable than telescopes. A compact, angled 20-40x spotting scope for hunting with a 60mm objective lens is 239mm long and weighs only 400gr, while a robust 20-60x model with an 85mm objective lens is 400mm long and weighs almost 1730gr. The difference is noticeable, and the difference in performance is going to be even more noticeable. All factors regarding the scope’s size, including whether a tall or short tripod is preferable, have to be considered in conjunction with how you’ll transport them.\nGoing beyond hunting\nBecause of their excellent light transmission and field of view, scopes have been the optic device of choice for hunters and target shooters for a long time. The credit, however, really goes to their distortion-free, no-glare magnification. This makes them ideal for attracting an even broader segment of outdoor users who want durable, larger-lensed optics that can perform all kinds of tasks with the right accessories, but won’t cost an arm and a leg.\n- With a camera attachment, a scope becomes a tool for outdoor photographers (called digiscoping).\n- With a phone attachment, a scope becomes an instrument of discovery for bird and even offshore ship watchers.\n- With a reticle attachment, a scope becomes a position finder for amateur astronomers or geodesists.\nThe final word\nWith all things considered, there’s no topping a spotting scope when it comes to getting the highest magnification possible in the toughest package possible.\nFrom hunting and shooting, to ship and bird spotting scopes are an affordable, long-term way to make outdoor activities more interesting and appealing without substantial cost.\nIf you’re considering spending more time camping, hiking, or just enjoying the beauty of nature on a regular basis, a scope’s the ideal device to help you do it.","domain":"optical_engineering"}
{"url":"https://bad-elf.com/pages/spike-by-ikegps","date":"2024-02-28T06:05:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474697.2/warc/CC-MAIN-20240228044414-20240228074414-00814.warc.gz","language_score":0.9359840750694275,"token_count":144,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__129779084","lang":"en","text":"Spike is a laser measurement solution that allows you to measure an object simply by taking a photo with your smartphone or tablet. From that photo, you can capture real-time measurements including areas, elevations, distances between two points, and GPS/GNSS location. The Spike laser device, Spike mobile app, Spike Cloud and your smartphone or tablet work together to bring measurements within reach. When Spike is paired with the Bad Elf GPS receiver, the GPS accuracy of the mobile device is significantly improved delivering a simple, affordable measurement and mapping workflow.\nBenefits/Improvements Since Integrating with Bad Elf\n- Offset measurement capability for use with apps such as Esri Survey123\n- Improved geolocation accuracy","domain":"optical_engineering"}
{"url":"https://mulfox.icmab.es/magneto-optics/","date":"2022-01-27T01:33:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305052.56/warc/CC-MAIN-20220127012750-20220127042750-00237.warc.gz","language_score":0.8730891346931458,"token_count":466,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__124438899","lang":"en","text":"The interaction of light with matter offers an invaluable tool to characterize the properties of materials and, at the same time, can be exploited for applications in optical communications, data storage, or sensing.\nIn our lab the focus is on the tailoring of the spectral response of electromagnetic waves in complex materials, including strongly correlated electron systems, photonic crystals and plasmon resonators. Our recent investigations have demonstrated the possibility of having customized magneto-optic spectral responsiveness, with magneto-optic enhancements at particular light wavelengths when coupled to photonic or plasmonic structures. A particular attention is also paid to the effect on light polarization when it interacts with media that present ordered electronic states, such as magnetic or ferroelectric compounds, that is exploited to carry out submicron domain imaging.\nOur lab has different equipment to carry optic and magneto-optic characterization:\nMagneto-optic spectroscopy lab.\nMagneto-optic spectroscopy form UV to near IR (wavelength range ~ 300 – 1200 nm). Measurements of Kerr/Faraday rotation and ellipticity and magnetic circular dichroism from 8 K up to 320 K, and with magnetic fields up to ~ 2 Tesla.\nConfocal microscopy lab.\nHigh-resolution imaging (below the micron) based on confocal microscopy with polarized light contrast. It allows obtaining mappings of rotation/ellipticity and circular dichroism, as well as linear dichroism effects. These possibilities are exploited to perform magnetic as well as ferroelectric domain imaging.\nOptical reflectance spectrometer.\nReflectance spectra in the visible range as a function of the angle of incidence. It allows obtaining reflectance contour maps for wavelength range l » 400 – 800 nm and angle of incidence within (–40º, +40º). From these plots we can obtain the dispersion relationship w– k (frequency versus wavector) of light interacting with media (plasmon reonators, gratings, photonic crystals, etc.)\nMagneto-optical set up with remote-control rotor stage. It allows the study of magnetic anisotropy with high accuracy in azimuth angle.\n© MULFOX. All rights reserved.","domain":"optical_engineering"}
{"url":"https://www.ritawalls.com/blue-light/","date":"2020-07-06T19:27:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655890181.37/warc/CC-MAIN-20200706191400-20200706221400-00566.warc.gz","language_score":0.8825390338897705,"token_count":526,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__55197333","lang":"en","text":"24 Jul Blue Light\nwhat is Blue Light?\nVisible light (or sunlight) is made up of different wavelengths of light – red, orange, yellow, green, blue, indigo and violet light. Blue rays are the shorter wavelengths and have more energy, whereas the red rays are longer and have less energy.\nBlue light (a high energy visible light) is emitted from LCD and LED computer and television screens, smart phones, tablets and GPS devices. Blue light is natural and present in daylight – it helps us to stay awake. When your eyes are over exposed to Blue light it can cause eye strain, eye fatigue and sleeplessness.\nHow does Blue Light affect your eyes?\nMost blue light passes through the cornea and reaches the retina at the back of your eye. Too much blue light can age your eyes prematurely and can cause Digital Eye Strain & Damage to the Retina.\nDigital Eye Strain Symptoms:\n– Tired, burning, itching eyes\n– Light sensiivity\n– Glare or halos around objects\n– Fluctuating vision, worsening eyesight\n– Blurred or double vision, difficulty focusing\n– Dry eyes, excessive blinking\n– Neck/shoulder/back pain or body fatigue\nRetinal cells can get damaged over time leading to Macular Degeneration which can lead to permanent vision loss.\nHow can you protect your eyes from Blue light?\nHoya Hill Optics has created a lens that blocks out blue light when working on digital devices. BlueControl blocks blue light emitted from digital screens preventing eye strain and fatigue – your eyes feel more relaxed and your vision is improved! View more information here.\nHoya’s BlueControl lens uses Hi Vision LongLife (HVLL) technology:\nHVLL is the hardest anti-reflection coating on the market today with a 3 year warranty on manufacturing defects!\nScratch resistant – You no longer need to worry about scratches with this scratch resistant layer.\nAnti-reflective – The Anti-reflection coating allows light to pass through the lens improving the quality of vision and allowing your eyes to be more visible.\nWater Repellent – Water drops just roll off your lens surface because of the minimal grip of the top layer.\nDirt Repellent – Dirt and grease wipe off easily because of the coating’s easy-to-clean properties.\nAnti-static – An anti-static layer prevents dust adhering to the surface, ensuring clear vision. You also don’t have to clean your lenses as often.","domain":"optical_engineering"}
{"url":"https://www.historyoftelescope.com/telescope-facts/how-telescopes-work/","date":"2021-05-08T15:19:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988882.94/warc/CC-MAIN-20210508151721-20210508181721-00056.warc.gz","language_score":0.9541838765144348,"token_count":567,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__12489540","lang":"en","text":"Telescopes are optical instruments that focus light in such a way that distant object look magnified. Just one year after discovery of first modern telescopes, Galileo Galilei managed to create small telescope that had 30x magnification. If you feel adventurous, you can repeat that feat today!\nAnyone who wants can create simplified version of telescope can do that using mostly home supplies – two magnifying glasses (2.5-3cm will be enough, also it is helpful if one is larger than another), cardboard tube, duct tube, scissors and a ruler. To determine the perfect distance between those two lenses, take the larger lens and put it away from yourself, and then place smaller lens between it and your eye. Move the lenses and position of your head back and forward until the image that you see through smaller lens is clear. At that time, ask for your friend to measure exact distance between two lenses. After that, take the tube and mark the positions where lenses need to slot in, insert them, and make sure they are not moving. After that you can use your simple telescope.\nAnother tactics is to take the tube and tape up smaller lens to one side of the tube. Then you need to look through smaller lens and tube beyond it, and take larger lens and manually position it in front of the tube. This process is little complicated, but it requires minimal effort for assembling the materials.\nHowever, when we move from amateur telescopes and spyglasses to the more professional made one, things get little more complicated. Scientific telescopes demand much more advanced hardware and materials, starting from of course specialized lenses and mirrors that are optimized for telescopes. Main lens of the telescope has to be very pure, usually as pure as 99.9 % of silicon and just 0.1% of impurities. The glasses are separated into two groups – crown glasses (boron oxide, sodium oxide, potassium oxide, zinc oxide or barium oxide) and flint glasses (lead oxide). All glass components are made in furnaces that reach 1550 °C, which ensures that all air bubbles are ejected from it. To make glasses anti-reflective, they are coated with magnesium fluoride. Mirrors that are used are not as pure as glasses, but are made to be very accurate and coated with aluminum which provides best reflectivity.\nOne of the most important elements of the production of professional telescopes is quality control, which touches each step of the manufacture. Accuracy of lenses and mirrors is especially closely monitored, including their grinding, thickness, diameter, and curvature (which is measured with a device called spherometer). Tolerances for curved lens are usually plus or minus of 20 micrometers, while flat lenses (mirrors) are about plus or minus 1 micrometer (0.00004 inches).","domain":"optical_engineering"}
{"url":"https://scientechinstruments.net/product_view.php?pid=158","date":"2024-04-22T10:12:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818105.48/warc/CC-MAIN-20240422082202-20240422112202-00062.warc.gz","language_score":0.9112372994422913,"token_count":536,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__110597227","lang":"en","text":"Polarimeter is a reliable instrument for accurate measurement of Optical Rotations, for study of Polarisation effects and for quick and easy discrimination between right-handed sugars such as Dextrose and left handed sugar such as laevulose. The instruments find use in industries as well as in Colleges and Universities. The Polarimeter essentially consists of a pair of polarisers arrange in a straight line, one of which (analyzer) can be rotated with respect to the other (polariser) and the rotation measured on a divided circle. The circular scales are finely marked on a 10cm diameter circle both in angular measure and in International Sugar Scale. The smallest division on angular scale is 1° ISS. The Sugar Scale is calibrated between -30° (for Laboratory substances) and +130° ISS. The Scale is properly illuminated to facilitate reading.\n- Maximum Length of tubes which this model can take is 400mm; smaller tubes can also be used.\n- The tubes supplied have a bubble trap.\n- Polaroid Sheets used for polarishing the incident light.\n- Glass circular scale finely marked in angular degrees and also in ISS degrees. The range on ISS Scale is from -30° to +130°.\n- Permanent focus: Once the dividing line is focused for the eye. The focus is not disturbed by inserting tubes containing solutions, regardless of the nature of solution or of the length of the tube.\n- Permanent good definition even with difficult liquids.\n- Rotating half shadow Effect.\n- Provision for attaching lamp to the instrument thus keeping alignment correct at all times.\n- Supplied complete with Polarimeter tube, Sodium, Transformer & Instruction manual.\nComes in below 2 variants:\n(A) Tube size 220 mm with rotating half shadow.\n(B) Tube size 400 mm with rotating half shadow.\nAPPLICATIONS OF POLARIMETER\n- A polarimeter is a scientific instrument used to measure the angle of rotation caused by passing polarized light through an optically active substance\n- Some chemical substances are optically active, and polarized (uni-directional) light will rotate either to the left (counter-clockwise) or right (clockwise) when passed through these substances.\n- The amount by which the light is rotated is known as the angle of rotation. The angle of rotation is basically known as observed angle. Many chemical substance changes their properties when polarized light is passed through it. Polarimeter is used widely and extensively in the Food & Beverage industries.\n- Pharmaceutical as well as chemical industries finds innumerable applications of Polarimeter.","domain":"optical_engineering"}
{"url":"https://vectortechnologies.com/product/lambda-pro-70/","date":"2019-03-21T00:00:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202474.26/warc/CC-MAIN-20190320230554-20190321012554-00511.warc.gz","language_score":0.900931715965271,"token_count":172,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__134725792","lang":"en","text":"LAMBDA PRO 70 is an optical receiver, designed for FTTx or video overlay optical transmission systems. Built-in electronic adjustment of optical gain parameters and optical AGC help to reduce a receiver installation time and greatly simplify network maintenance.\nThe AGC circuit compensates for changes in optical power providing stable RF output level, regardless from the input signal changes.\nThere is no need for additional modules, which are necessary to control and confi gure the receiver. It reduces costs of network management and simplify network maintenance. Measurement of optical power level does not require additional equipment, as is indicated on the LED display installed in the receiver and allowing for quick installation of the receiver.\nApplication LAMBDA PRO 70, in conjunction with the high output level, enables a very cost-eff ective network design.","domain":"optical_engineering"}
{"url":"https://www.sirautoglass.com/all-tips-you-need-to-know-about-adas-cameras/","date":"2023-12-08T15:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100762.64/warc/CC-MAIN-20231208144732-20231208174732-00197.warc.gz","language_score":0.948140561580658,"token_count":658,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__305214455","lang":"en","text":"An ADAS system uses a combination of top quality cameras and advanced processing technologies to detect potential safety hazards and react immediately. In most cars and SUVs, these cameras are installed on the inside of the windshield glass, the rear view glass or on the roof of the car.\nIn some cars, you will find two cameras mounted on the windshield. The ADAS system captures the images of the surroundings of the vehicle and supplies accurate data to the driver in real time. As soon as the driver receives crucial information in real time, he or she finds it easy to take action at the right time to avoid danger or the risk of serious injuries. These cameras have useful features to collect data and stream video for the driver to see in real time with low latency. This is exactly why the DAS system is one of the most important vehicle safety elements.\nNot just the role, but you also need to understand the different camera features of a vehicle’s ADAS system. Knowing the features will help you select the right type of camera for the ADAS device in your car or SUV. Here are some of the key features that’s great ADAS camera has:\nWhen it comes to ADAS cameras, you do not need to go for very high resolution. A camera with a resolution of 2 MP is suitable for the purpose. However, you can go a little beyond this resolution as well.\nHigh Dynamic Range\nOne of the key features of ADAS cameras is HDR or High Dynamic Range. The ADAS systems are designed to perform in a range of lighting conditions, from bright areas to dark areas. Therefore, HDR cameras are ideal for ADAS devices, as they prevent overexposure and underexposure.\nFor the ADAS system to function properly, the camera interface should be able to transmit data for over a distance of 10 meters with a high level of accuracy. Equipped with such an interface, the distance between the camera and the host processor does not create any problem. That is exactly why you should opt for GMSL cameras for the system to function efficiently.\nLED Flicker Mitigation\nMost vehicles come with LED light, which makes it difficult to read the images. In order to eliminate the problem of flickering for easy reading, you should install a camera with LFM feature. These cameras are designed to accurately capture images even when the LED lights are very strong.\nThe cameras you choose should also have low latency. This feature will help the quick and easy transfer of captured images to the display in real time. The feature enables the system to take automated decisions.\nThe compatibility of the ADAS camera with the processor is important. If there is any kind of incompatibility between the two, the system will fail to deliver high-precision results. There are many ADAS cameras that are pre-integrated with certain types of processors. Make sure you consider the platform compatibility or get those cameras that are already integrated.\nHopefully, you have understood the key features of ADAS cameras. If you still have a question or seek expert help in the selection and integration of cameras into your ADAS device, do not hesitate to reach out to one of our specialists at SIR Auto Glass in the Portland metro area, OR.","domain":"optical_engineering"}
{"url":"http://www.ericbogatin.com/2014/10/field-of-view-of-our-canon-450d-and-two-lenses/","date":"2018-02-18T19:40:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812259.18/warc/CC-MAIN-20180218192636-20180218212636-00649.warc.gz","language_score":0.8337143063545227,"token_count":227,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__103233056","lang":"en","text":"In a previous post, I reviewed the fields of view for the Canon 60Da with the C925 telescope. In this post, we look at the fields of view for the Canon 450D camera and the two lens attachments.\nThe two lenses are 18 mm to 55 mm and 70 mm to 300 mm. The summaries’ of these all all the tools we have at the Addie Rose Observatory can be found here. Generally, we use the lenses at their hi and low focal length limits.\nHere is the summary of the angular fields of view and resolutions for all combinations.\n|canon 450D||22.2 mm||14.8 mm||5.2 u|\n|18 mm||71 deg||47 deg||60 arc-sec/pixel|\n|55 mm||23 deg||15.4 deg||19.5 arc-sec/pixel|\n|70 mm||18.2 deg||12.1 deg||15.3 arc-sec/pixel|\n|300 mm||4.24 deg||2.83 deg||3.6 arc-sec/pixel|","domain":"optical_engineering"}
{"url":"https://ririeshop.com/402/refractometer-calculators-the-precision-tool/","date":"2024-04-14T14:34:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.72/warc/CC-MAIN-20240414130604-20240414160604-00812.warc.gz","language_score":0.8857247829437256,"token_count":1713,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__131011655","lang":"en","text":"Your Go-To Tool: The Refractometer Calculator Explained\nShould you function in industries such as brewing, winemaking, or honey production, you’re likely acquainted with the necessity of refractometers in measuring refractive index accurately. But do you know that there’s a tool that can simplify your refractometer measurements? Introducing the refractometer calculator – a necessity-have tool with your kit. With its simplicity and accurate calculations, it could help you save some time and assist you to achieve ideal results for your products.\n- The refractometer calculator is really a helpful tool in industries for example brewing, winemaking, and honey production\n- It simplifies refractometer measurements and offers accurate calculations\n- The tool saves time as well as helps achieve better results\nWhat is a Refractometer?\nA refractometer is actually a precision instrument used to look at the refractive index of liquids. This measurement helps determine the concentration of dissolved solids in the liquid, including sugar in a solution. Refractometers are typically employed in the meals and beverage industry to make sure product quality and consistency.\nThe refractive index is definitely the ratio in the speed of light within a vacuum for the speed of light inside a given substance. When light passes using a substance, it bends or refracts, and the volume of bending is influenced by the refractive index of the substance.\nA refractometer operates by shining a mild by way of a liquid and measuring the angle from which the sunshine is refracted. This measurement is going to be accustomed to calculate the refractive index from the liquid, which is often transformed into a concentration measurement using a refractometer calculator.\nThe Advantages of Employing a Refractometer Calculator\nIf you’re working with refractive index measurements, a refractometer calculator might be a game-changer. This tool simplifies the whole process of calculating refractive index by automatically converting Brix, specific gravity, as well as other measurements in a useful and simply interpretable format.\nBy using a refractometer calculator will save you a significant amount of time, particularly if you’re working with large quantities of substances, such as within the brewing industry. Additionally, it eliminates the requirement for manual calculations, reducing the potential risk of errors inside your measurements.\nFor beer brewers, a beer refractometer calculator is necessary-have tool. It permits you to quickly and accurately determine the alcohol content and extract of your respective beer, without making use of additional calculations.\nIf you’re working with wine, a wine refractometer calculator can simplify the process of determining the sugar content of the grapes. The tool calculates the Brix readings, which may be used to estimate the opportunity alcohol content from the wine.\nFor honey producers, a honey refractometer calculator may help determine the moisture content of your respective honey. Using a refractometer to study the refractive index of your honey, you may input the data into the calculator to ascertain the water content.\nDigital refractometer calculators have grown to be popular, because they let you input your readings straight into the tool, eliminating the demand for manual data entry. This will save you both time and effort, especially whenever using vast amounts of substances.\nThe advantages of using a refractometer calculator are clear – it saves you time, reduces errors, and simplifies the process of measuring refractive index. Whether you’re working with beer, wine, honey, or another substances, a refractometer calculator needs to be your go-to tool.\nUsing a Refractometer Calculator\nEmploying a refractometer calculator is simple and straightforward. Listed below are the steps to follow to get accurate refractive index calculations:\n- Have a measurement of your refractive index making use of your refractometer.\n- Have a measurement of the temperature of the substance you’re testing.\n- Input both values to the refractometer calculator.\n- The calculator will generate a precise calculation from the substance’s refractive index.\nIt’s worth noting that different types of refractometers might require different inputs. For instance, a beer refractometer calculator might need a specific gravity measurement besides the refractive index and temperature. Make sure to consult the instruction manual or manufacturer’s website for specific guidance on the way to make use of refractometer calculator.\nOverall, employing a refractometer calculator simplifies the whole process of measuring refractive index and saves time by providing accurate calculations. When you obtain the hang of this, you’ll wonder the way you ever managed without them!\nVarious Kinds of Refractometer Calculators\nThere are several forms of refractometer calculators available, each with its features and benefits. Many of the most common types include:\nDigital Refractometer Calculator\nAn electronic refractometer calculator provides accurate and fast readings of refractive indices. It provides a digital display that shows the measurement results, making it easier to see than analog models. A digital option is a great choice for individuals who require more precise measurements or deal with multiple substances, each with unique refractive index scales.\nBeer Refractometer Calculator\nA beer refractometer calculator is specially created for use in beer brewing. It is actually user-friendly and calculates the alcohol content, as well as the original and final gravity of the beer. A beer refractometer calculator is a crucial tool for homebrewers and commercial brewers alike.\nBrix Refractometer Calculator\nA Brix refractometer calculator is primarily found in agriculture and food processing for measuring sugar levels in vegetables and fruit. It is additionally widely used in wine making and honey production. The Brix scale measures the percentage of sucrose by weight, rendering it a valuable tool in calculating sugar concentrations.\nSpecific Gravity Refractometer Calculator\nA particular gravity refractometer calculator measures density, which is often used to calculate the particular gravity of a substance. It is frequently used from the brewing industry to look for the alcohol content and overall quality of beer. A specific gravity refractometer calculator helps brewers calculate their beer’s final gravity and estimate their beer’s alcohol by volume (ABV).\nWine Refractometer Calculator\nA wine refractometer calculator is a lot like a Brix calculator but has a specific scale for measuring wine-specific grape must. Its dimensions are the quantity of sugar inside the grapes, which affects the wine’s alcohol content and overall flavor. A wine refractometer calculator is an important tool for wine producers and home vintners.\nHoney Refractometer Calculator\nA honey refractometer calculator measures the water content, sugar content, and moisture of honey. It is crucial in determining the honey’s quality and purity. A honey refractometer calculator helps beekeepers calculate the water content of their honey easily, preventing spoilage and increasing their yields.\nConverting Refractive Index Measurements\nWhen working with refractive index measurements, it’s crucial so as to convert between different scales accurately and efficiently. This is where the refractometer conversion calculator is useful. Using this tool, you can actually convert your refractive index readings between Brix, specific gravity, and Plato scales.\nThe refractometer conversion calculator simplifies this method by taking into consideration temperature fluctuations, ensuring your outcomes are accurate and consistent. This saves time as well as reduces the danger of errors, so that it is a necessary tool for everyone utilizing refractive index measurements.\nThe Key Benefits of Employing a Refractometer Conversion Calculator\nUsing a refractometer conversion calculator offers several advantages:\n- Accuracy: The conversion calculator takes into consideration temperature changes, providing accurate and consistent results.\n- Efficiency: Converting between different scales manually may be time-consuming and error-prone. The conversion calculator simplifies the process and saves time.\n- Flexibility: The conversion calculator can be used for different applications, including brewing, winemaking, and honey production.\nWhether you’re a professional brewer, winemaker, or beekeeper, the refractometer conversion calculator is a valuable tool that simplifies the whole process of converting refractive index measurements between different scales. It saves time, reduces the potential risk of errors, and ensures accurate and consistent results.","domain":"optical_engineering"}
{"url":"https://hginthesea.wordpress.com/2013/10/27/594/","date":"2018-03-24T02:01:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257649627.3/warc/CC-MAIN-20180324015136-20180324035136-00361.warc.gz","language_score":0.9269211292266846,"token_count":106,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__53777771","lang":"en","text":"The black boxes pictured above are transmissometers that will be attached to different sampling devices. A beam of light travels through the open space on the front of the box, from a source at the top to a detector at the bottom. When particles in the water pass through the beam, some of the light is scattered or absorbed before it reaches the detector. The quantity of light missing is calculated and used to estimate the amount of particle in the water. Today the signal from each tranmissometer was calibrated using a voltmeter.","domain":"optical_engineering"}
{"url":"http://sincoheren.rusmed.ru/catalog.php?act=catalog_show_item&catalog_item_id=12&catalog_section_id=5","date":"2020-01-20T00:50:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250595787.7/warc/CC-MAIN-20200119234426-20200120022426-00321.warc.gz","language_score":0.8229557871818542,"token_count":290,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__218277303","lang":"en","text":"Dermis pigmentation, such as lentigines, blue or black tattoo, eyebrow color.\nEpidermis pigmentation, such as freckle, senior fleck and yellow, red, brown tattoo, lip color\nTherapy of epidermis and dermis pigmentation---Utilizing the explosive effect of the Nd Yag laser, the laser permeate the epidermis into the dermis which includes amount of pigments mass. Since the laser pulses in nanosecond but with super high energy, the shot pigment mass swell quickly and breaks into small pieces, which will be eliminated through metabolic system\nTherapy of the dilatation of capillary vessel---Utilizing the hear effect of the Nd: Yag laser, the laser is absorbed by the hemachrome in the capillary vessel, then the capillary vessel become blocked and disappear.\nWavelength: 1064nm, 532nm\nLaser type: Nd: YAG\nOutput: 300-800mJ adjustable\nHandpiece & Fluence (J/mm), 2-6\nLaser Pulse Width 8ns\nCooling system Built-in water cooled\nInterface LCD screen with remote controlling\nDimensions 450 × 800 ×1000mm\nElectrical Power AC 220V, 3A, 50Hz\nWe can offer power of AC 110V±10,3A,50HZ for special client.","domain":"optical_engineering"}
{"url":"https://www.scalasol.com/en/uv-protection-film/","date":"2024-02-21T07:51:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00348.warc.gz","language_score":0.9460741877555847,"token_count":1361,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__173063345","lang":"en","text":"UV protection film\nUV window film blocks out harmful UV radiation\nThe rays emitted by the sun can be divided into three categories, i.e.: ‘light’ (visible); ‘infrared rays’ (invisible, but emit heat) and ‘ultraviolet’ (invisible). The human eye cannot see ultraviolet or infrared rays. Nonetheless, these rays are present. The rays are at their fullest strength in the summer when the sun is high in the sky but that is not to say there is no harmful radiation in the winter. UV rays enter your home or office through the windows. Glass does not have a filter to block out UV rays, so they are not reflected and as a result, these harmful rays can damage your furnishings and furniture. The most well-known example of that damage is discolouration. Discolouration occurs because the UV rays come through the windows unfiltered and reach your furnishings and furniture. UV window film does contain such a filter, and will protect your furnishing against discolouration and other damage from the sun’s harmful rays. UV window film stops 99% of the harmful UV rays, which means that your furnishings and furniture will last much longer if UV blocking film is used.\nThe practical uses of UV blocking film\nUV window film is used specifically to protect against discolouration and fading. Not surprisingly, that is the reason why UV window film is very common in the retail industry on the glass in shop windows and display cases. UV blocking film is transparent, so inward visibility is not obstructed – an important feature for shops, obviously. The film lets in all the visible light emitted by the sun, so the room is no darker after the application of UV film. UV blocking film is often used on glass in homes, as well as in shops, to protect the furniture, curtains, floors, etc. Glass can amplify UV rays, which is why you frequently see that curtains and flooring show some fading if they have been exposed to harmful UV radiation (light, infrared and ultraviolet rays) for a long time. Generally speaking, that damage cannot be restored and can cost you a lot of money. You can protect your furnishings and furniture with UV blocking film. Once you have applied the UV protection film to the pane, it will offer immediate protection against UV radiation. Besides offering protection against UV rays, UV protection film will block 6% of the heat from the sun. In other words, UV protection film is a window film with a two-fold effect.\nThere are two kinds of UV protection film available\nUV film is available in two different varieties. The first variety is transparent; its most important purpose is to prevent discolouration caused by ultraviolet radiation. The second variety is translucent with an amber tint. This amber-tinted UV protection film blocks both UV radiation (ultraviolet light) and infrared radiation. Infrared rays are rays that cause discolouration, just like ultraviolet rays do, but infrared rays have a higher wave length than ultraviolet rays. Amber-tinted UV blocking film is common in laboratories, operating theatres, printers and the photography industry. This kind of UV film is used in rooms from which it is essential that UV rays are blocked to a very accurate degree. The transparent kind of UV blocking film offers sufficient protection against discolouration but does not stop infrared rays the way the amber-tinted UV protection film does. Nonetheless, the transparent UV protection film‘s protection against discolouration is adequate for use in homes and offices. However, discolouration can also be caused by visible light, the heat of the sun and the quality of a product’s dye and materials.\nUV window film is suitable for all types of plate glass\nTransparent UV window film can be applied to the inside of all types of plate glass. By plated glass, we mean: single glazing, double glazing and all grades of Low E glass including triple glazing. UV film does not have a heat control effect, so there is no risk of expansion cracks in the glass. UV blocking film only stops UV rays so it does not alter anything about the heat build-up in the window. Amber-tinted UV window film should not be applied to the inside of Low E glass, because amber-tinted UV film creates a different heat build-up in the window due to its amber/orange colour and that could cause an expansion crack. However, UV blocking film can be applied to the inside of single glazing and normal double glazing. Both kinds of UV film are intended for indoor use, which means that this UV protection film should be applied to the inside of the pane. It is very easy to apply UV film yourself by following the application instructions which we include in your order. We always recommend adding a felt-edged squeegee to your order.\nThe practical advantages of UV window film\nA brief list of the advantages of UV blocking film:\n• UV film prevents your furniture and furnishings from fading\n• UV window film is transparent and therefore invisible\n• It blocks the harmful UV rays emitted by the sun and the moon\n• Amber-tinted UV protection film blocks both ultraviolet and infrared radiation\n• It is easy to apply yourself\nUV window film can be ordered cut-to-size\nThanks to our unique made-to-measure module, it is easy to order UV film in exactly the right size, down to the last millimetre. Enter your window’s measurements to immediately see the price of the UV film. You will know what your UV window film will cost as soon as you have filled in the measurements. You need to measure from one edge of sealant to the opposite edge of sealant; no margin is required. The UV film will be delivered in exactly the size you filled in. You can start applying the UV blocking film immediately after you have received it. Alternatively, you can order one of our standard sizes, of course; go to the list under the tab ‘standard sizes’ to order. From those standard sizes, you can select the size that is the closest match in size to your window. Besides the made-to-measure and standard options, you can buy an entire roll of UV protection film. That option is available under the tab ‘whole roll’. Businesses often choose this option, so they can apply the film for their customers. With the help of our made-to-measure module, we take the work involved in cutting UV protection film to size off your hands and you can save valuable time.","domain":"optical_engineering"}
{"url":"https://in.c.mi.com/thread-120079-1-0.html","date":"2020-05-26T10:24:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390755.1/warc/CC-MAIN-20200526081547-20200526111547-00472.warc.gz","language_score":0.9356116652488708,"token_count":1122,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__173771396","lang":"en","text":"| Edited by Karthik Mohan at 2017-02-08 07:48 AM |\nHello Mi Fans,\nHope you guys are having loads of fun here in our Mi Community.\nIn today's 'Tech Class' we will take you through PDAF Technology,\nDifference between CDAF & PDAF and much more.\nIntroductionPDAF in a continuously focusing mode is a closed-loop control process. PDAF in a focus-locking mode is widely believed to be a \"one measurement, one movement\" open loop control process, but focus is confirmed only when the AF sensor sees an in-focus subject. The only apparent differences between the two modes are that a focus-locking mode halts on focus confirmation, and a continuously focusing mode has predictive elements to work with moving targets, which suggests they are the same closed-loop process.\nPDAF is Phase Detect Auto Focus system. Its a focus system used by DSLRs when shooting through the viewfinder. The advantage of this is faster auto focus, better subject tracking and less focus hunting(useful in videos).If you want to minimize the motion blur when the subject is moving (or you are moving, like inside a vehicle), phase-detect autofocus is useful.\nHow PDAF Technology helps Cameras to focus fast\nThe camera has become more and more important in smartphones and people have higher requirements for its focusing speed. A lot of methods to assist focusing are available in the current market, including laser, infrared, and phase focusing. Focusing is the process whereby a motor moves to bring the subject into focus. Focusing algorithms are divided into contrast detection and phase detection auto focus (PDAF). Let us look into detail on how PDAF Technology works.\nIn contrast focus (traditional auto focus systems), the moment you start your camera app, a lot of calculations are done by the processor to achieve the correct focus. First, the camera software triggers the lens to move and scan through its entire range of possible focus points, then it returns to whichever settings that provides the sharpest focus. Contrast detection requires the motor to move to different positions until the image displayed on the viewfinder shows the highest contrast. Contrast detection achieves precise focusing but takes a long time because the motor has to keep moving to find the highest contrast.\nPhase detection is the process whereby the phase difference of the subject at the imaging plane is calculated to determine the distance between the motor’s current position and the position required for bringing the subject into focus. The motor then moves to this position.\nPhase detection takes a short time, but the phase difference is easily affected by various factors such as noise. Therefore, phase detection is not suitable for focusing at low luminance, in a flat area, and on parallel patterns.\nPDAF Technology uses paired masked pixels on the image sensor that are engineered to work just like your eyes; your left and right eye are separated by a distance, just like these paired pixels.\nAs shown above, the dark points represent the PD pixels. The phase information read using the PD pixels can be used to determine the corresponding focal length. After the GPU receives the focal length information, it can swiftly drive the lens to move to a position with the optimal focus.PDAF Technology increases the focusing speed using planar image phase detection. This technology was first applied to the Interchangeable Lens Digital Camera, which allows the user to keep taking HD photos of fast-moving objects (children, pets, or cars) using autofocus. Compared to traditional focusing technology, the PDAF focusing speed has been greatly improved.PDAF focusing technology, however, is not applicable to all scenarios because there is a lot of room for error. Therefore, hybrid focusing systems are commonly adopted with phase focusing used to find the correct position and contrast focusing used to achieve the optimal focus.\nDifference between CDAF & PDAF\nCDAF focuses directly on the sensor. It uses a distinct lline in the image by moving the lens until that line obtains the highest contrast, which coincides with the sharpest focus. It works best with lenses designed to move with these focus motions.PDAF uses a sensor placed in the light path created by the mirror. It works basically the same way with any DSLR, or single lens reflex camera, like the E-5. It uses two sensor points to detect the phase difference in the light path and find the exact distance. Then it moves the lens once to the correct focus point. Some of the 4/3 lenses tend to pass this point and hunt for focus several times before locking focus. The 50 mm f/2 macro is an example of this. Macro lenses of all types and brands tend to struggle to find focus.\nRedmi Note 4 is having PDAF Technology which help us to have some good focus here is a sample from Note 4 without any edits.\nCredits: Google Images, Wikipedia,tech.ink Special Thanks to Device Team Members, our Mentors @fauwaz & @paramgagan\nDid you find this thread Useful?\nIn order to fulfill the basic functions of our service, the user hereby agrees to allow Xiaomi to collect, process and use personal information which shall include but not be limited to written threads, pictures, comments, replies in the Mi Community, and relevant data types listed in Xiaomi's Private Policy. By selecting \"Agree\", you agree to Xiaomi's Private Policy and Content Policy .","domain":"optical_engineering"}
{"url":"https://isolarparts.com/ko/blogs/nwes2/kaust-claims-33-2-efficiency-for-perovskite-silicon-tandem-solar-cell","date":"2024-04-23T05:00:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818464.67/warc/CC-MAIN-20240423033153-20240423063153-00639.warc.gz","language_score":0.8919116258621216,"token_count":502,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__123133043","lang":"en","text":"KAUST claims 33.2% efficiency for perovskite/silicon tandem solar cell\nScientists led by Saudi Arabia’s KAUST have achieved a power conversion efficiency of 33.2% for a perovskite-silicon solar cell. KAUST Professor Stefaan De Wolf made the announcement on the university's LinkedIn account.\n“Glad to announce we obtained a certified power conversion efficiency of 33.2% for our monolithic perovskite/silicon tandem solars cells developed at the KAUST Solar Center,” he said. “With this, perovskite/silicon tandems are now the most efficient two-junction solar cell technology under standard illumination conditions, even better than III-Vs.”\nWolf said that the result has been certified, but he did not identify the certifying entity.\n“The 33.2% efficiency was just added to the NREL chart,” he told pv magazine. “The cells are indeed a further improvement on our previous devices.”\nIn January, KAUST announced a power conversion efficiency of 28.1% for a perovskite-silicon tandem solar cell based on textured silicon wafers. In August 2022, it claimed a 26.2% efficiency for a monolithic perovskite-silicon tandem photovoltaic device.\nIn December 2021, KAUST researchers achieved a power conversion efficiency of 28.2% for a tandem solar cell with an area of around 1 cm2, based on an n-i-p perovskite stacked on top of a silicon heterojunction.\nThe same research group recently announced an inverted perovskite-silicon tandem solar cell with a 1 nm interlayer based on magnesium fluoride (MgFx) placed between the perovskite layer and the hole transport layer (HTL), in order to reduce voltage losses.\nThis content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: firstname.lastname@example.org.","domain":"optical_engineering"}
{"url":"http://www.e-sonic.com/whatsnew/weekly_Fluke_LaserMeter101.htm","date":"2014-04-23T08:34:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00185-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9343753457069397,"token_count":132,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__84246485","lang":"en","text":"Want to determine the distance between two objects? Need to calculate area or volume? No need to learn how to read a tape measure or ruler, the Fluke Laser distance meters do the work for you. Introducing two new Fluke Laser Distance Meters. The Fluke 416D and 411D are professional-grade laser distance meters — they’re fast, easy to use, and they fit on your tool belt. These meters will save you effort and money by reducing measurement time and errors! Use Fluke laser distance meters to quickly and accurately determine the distance to your target, the area bounded by two distances, or the volume within three measurements.","domain":"optical_engineering"}
{"url":"http://www.ct-technologies.dk/light-fixtures/","date":"2017-07-23T12:41:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549424559.25/warc/CC-MAIN-20170723122722-20170723142722-00358.warc.gz","language_score":0.8838842511177063,"token_count":111,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__96280459","lang":"en","text":"CT-technologies offer professional lighting solutions for the global market – lighting solutions for industrial production halls, office buildings and other premises.\nSymmetrical or asymmetrical light distribution. For installation directly onto ceilings or on wire.\nAll light fixtures are made by European Standard BS-EN 12464-1 that specifies lighting requirements for indoor workplaces, as regards both visual comfort and visual performance, in terms of quantity and quality of illumination. CT-technologies also provide Alarms Systems and Emergency Light.\nAlso we provide Alarms Systems and Emergency Light.","domain":"optical_engineering"}
{"url":"https://fiza.pk/product/car-drl-6-led-light-bottom-bracket-18w-12v/","date":"2023-09-25T08:55:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508959.20/warc/CC-MAIN-20230925083430-20230925113430-00374.warc.gz","language_score":0.8128703832626343,"token_count":107,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__169860420","lang":"en","text":"CAR DRL 6 LED LIGHT BOTTOM BRACKET -18W 12V\n- High quality.\n- 6 units of high intensity LED lights.\n- Useful life: more than 30,000 hours.\n- Ideal lights for trucks, off-road vehicles, military, mining, navigation, agricultural and heavy equipment.\n- This high power LED work light is light, shock resistant and durable. Universal, for 12V and 24V power supplies. Each lamp is designed for low power consumption and long service life","domain":"optical_engineering"}
{"url":"https://www.techboxs.org/thbp/352/usb-reading-lamps-hedynshine-84pcs-smd3014-led-chips-bright-computer-screen-bar-light-3levels-dimmable-protect-eyes-no-screen-glare-black-color-office-desk-lamps","date":"2020-07-06T12:18:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655880616.1/warc/CC-MAIN-20200706104839-20200706134839-00286.warc.gz","language_score":0.8191867470741272,"token_count":1314,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__21945310","lang":"en","text":"USB Reading Lamps, HEDYNSHINE 84pcs SMD3014 LED Chips Bright, Computer Screen Bar Light, 3levels dimmable Protect Eyes, No Screen Glare, Black Color, Office Desk Lamps\nFree Shipping Included! USB Reading Lamps, HEDYNSHINE 84pcs SMD3014 LED Chips Bright, Computer Screen Bar Light, 3levels dimmable Protect Eyes, No Screen Glare, Black Color, Office Desk Lamps by HEDYNSHINE at Tech Box. MPN: HDSCS01-01. Hurry! Limited time offer. Offer valid only while supplies last. Application: When you use the rigid strip ,it not easy to cause eyes strain and It won't damage your eye vision.The light area focuses on the keyboard and desk surface directly below the computer monitor screen,it won't waste light and no reflected light rays.With this You can work and study more easily in the evening! Parameters: Model CL-Screen Lamp LED Type LED: SMD 3014 Qty：84pcs CRI：>90 Input：5V,1A USB port CCT(K):3000/4000/6500K Power：4W / 5W / 4W Product Size：400*83.6*57.6mm B\nProduct Description & Reviews\nApplication: When you use the rigid strip ,it not easy to cause eyes strain and It won't damage your eye vision.The light area focuses on the keyboard and desk surface directly below the computer monitor screen,it won't waste light and no reflected light rays.With this You can work and study more easily in the evening! Parameters: Model CL-Screen Lamp LED Type LED: SMD 3014 Qty：84pcs CRI：>90 Input：5V,1A USB port CCT(K):3000/4000/6500K Power：4W / 5W / 4W Product Size：400*83.6*57.6mm Body Material： Aluminium + ABS Brightness adjustment range： 10%-100% Installation: Setp1. Insert the eye-protection rigid strip into the supporting holder. The holder is stuck in the middle position of the rigid strip. When you insert the holder, pay attention to the USB cable running through the middle position of the holder. Step2. According to the thickness of the monitor to adjust the size of the holder bayonet, the holder should be stuck in the middle of the display above. Step 3. After installing the eye-protection rigid strip and the holder, arrange the USB cable, and place the dimmer in a suitable position on the desktop of the computer, so as to facilitate the adjustment of the lighting effect in the process of use; Step 4. Insert the USB connector into the USB port of the computer or the 5V adapter, turn on the power, and press the switch key of the dimmer, then the eye-protection light can be lighted. By fine-tuning the position of the eye-protection light in the fixture and pressing the dimmer, the illumination area and lighting effect of the eye-protection light can be adjusted.\nFeatures & Highlights\n- 1.Reading Lamps Good For Eyes: No reflecting light and Glare, Screen Bar adopts the design of asymmetrical circuits to light up the screen space, which could help to reduce the reflecting light effectively.\n- 2.Screen Bar Lamps Easy Installation: It is Clip design and suitable for any kinds of monitor with thickness from 0.4 \" to 1.2\". No need screw or any other component, just put it on the middle monitor then it is very strong and safe to hold.\n- 3.Lighting Bar Design: The lighting is focus in middle on the computer to make sure the full screen are full of light protect. Not same as traditional lamp that light come out from side.\n- 4.Save Space on Office desk lamps: It is Screen Bar Design, no need put the reading lamps on your desk, it is on top of your screen monitors. and you can reading or working with a good space\n- 5.E-Reading lamps Color adjustable: there are 3 colors temperature (3000k 4000k 6000k) as you need, and warm white light could make people relaxing and energetic, cool light make people more focused and work efficiently.\n0.79 x 0.79 x 15.75 inches\n5.1 x 2 x 17.4 inches\nHave questions about this item (HDSCS01-01), or would like to inquire about a custom or bulk order?\nIf you have any questions about this product by HEDYNSHINE, contact us by completing and submitting the form below. If you are looking for a specif part number, please include it with your message.\nRelated Best Sellers\nmpn: FBA_LUL-14, ean: 0723120302198,\n14 LED USB READING LAMP. This USB Reading Lamp is perfect for anyone who needs a little reading light now and then. The flex arm extends to shed light just where you need it! FEATURES - This reliable light features a gooseneck arm with 14 LED lights,...\nmpn: 8452893184, ean: 0735317984964,\nSpecifications: Material: ABS Plastic & Rubber& Built in lithium battery Light Source: 4 LED 3 Light Modes:Spot light only;flood light only;spot light and flood light Charging Time: Full charge for about 2.5Hours. Work Span: 4 hours at Highest Brig...\nDescription:100% brand new and high quality. Lightweight, Compact, Portable & Durable.the bendable book light doesn't require much space and can fit easily into your carry-on suitcase, making it a good choice from all aspects. Flexible Arms. Steel al...\nmpn: HA02, ean: 0730964469215,\nHow to work? Install the light in DC5V car UBS port, it only light up automatically in dark enviornment or when the light sensor hole is fully hided. Function 1：Set fixed color or 8 color in cyclic change. Click the light button lightly, set your ...","domain":"optical_engineering"}
{"url":"http://micronassociates.org/locking-laser-alignment-industrial-use/","date":"2019-08-20T20:08:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027315618.73/warc/CC-MAIN-20190820200701-20190820222701-00321.warc.gz","language_score":0.9382274150848389,"token_count":392,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__95021009","lang":"en","text":"The industrial sector relies on state-of-the-art technology, and for machining purposes that require a high level of precision, they need laser alignment. Laser technology is now so advanced that almost every field uses laser alignment technology, from huge projects to day-to-day operations.\nWhat exactly is laser alignment and what are the advantages that this system confers to industrial applications? Here is a brief summary.\nWhat is Laser Alignment?\nLaser alignment is the process by which engineers align two shafts using a laser device, for extreme precision. Normally the tolerance is very low to be almost negligible. Laser aligning is important as any sort of misalignment, no matter how minute, will create premature wear and tear on the shafts or turbines, increasing costs and reducing device lifetime, or even break the machine completely.\nThere are several reasons why tunnel companies and other machinists use laser alignment. Some of these are:\nLasers are extremely precise, especially in creating all sorts of industrial products. This minimizes wastage and increases the operating efficiency and productivity of any business. Moreover, using the technology also reduces maintenance and downtime costs, which lead to less manufacturing outlay and ultimately a better price for the end user.\n• On-site Integrated Reports with Analysis\nUsing the system also allows the user to get on-site custom reports with analysis to measure accuracy. This is important in industries where large quantities of products roll out of the assembly line.\n• Keeps You Competitive\nThe fact that a lot of companies in the industry now integrate laser technology into their processes means that lasers are now the standard in precision measurement. It ensures that the products you create adhere to the highest quality standards and made with utmost precision and highest attention to detail.\nLaser alignment is the 21st century way of ensuring accuracy and precision. Any other method, when compared to it, looks primitive, rough, and inaccurate.","domain":"optical_engineering"}
{"url":"https://kenstorch.com/solos/homemade-camera-filter-rig-for-shooting-the-venus-transit-of-2012/","date":"2023-03-26T11:45:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945472.93/warc/CC-MAIN-20230326111045-20230326141045-00333.warc.gz","language_score":0.9784519076347351,"token_count":422,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__81723701","lang":"en","text":"In order to photograph the transit of Venus across the surface of the sun, I created a stack of filters to reduce the brightness of the sun to ‘shootable’ levels.\nI used some filters I had around, many of which were in different sizes, but all equal to, or larger, than the filter size of the lens I used for the shots.\nI used my old-school Nikkor 200mm f4 lens. It was the longest lens I had available for which I had sufficient filtration.\nIt has a standard Nikon 52mm filter ring, and I have a bunch of 52mm filters, along with a few 55mm’s and a few 58mm filters too.\nIn order to get the light levels manageable, and shootable, I had to stack many filters, including an 8x Neutral Density, an Infrared R72 filter (which I swiped off of a home-rigged digital IR camera setup), and several linear Polarizers which I rotated to get the sunlight down in brightness.\nSince all the filters were at or larger than the lens 52mm, no vignetting occurred. At certain angles to the sun, however, there was visible flare reflections from between all the filters.\nI had to use the (Nikon D300) camera’s Low ISO settings (roughly equivalent to 100 ISO), with the top shutter speed of 1/8000 (which helped, since it was windy), and optimal apertures for this lens of f4, f5.6, and f8.\nAnyway, it worked as you can see from the above pix. One neat benefit of the dark filtration combined with the infrared filter is that some of the stars behind the sun were actually visible in the photos. These in addition to the sunspots also visible (best seen in the 1st pic in this post).\nAll in all, an unplanned, but usable rig, thrown together on the spur of the moment (one of my specialty areas 😉 ).","domain":"optical_engineering"}
{"url":"http://elearning.fawe.org/unit/phy3-lenses-lens/","date":"2021-04-19T05:35:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038878326.67/warc/CC-MAIN-20210419045820-20210419075820-00500.warc.gz","language_score":0.933650553226471,"token_count":2864,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__8806997","lang":"en","text":"A lens is a transparent device that is shared so that it converges or divergs light that passes through it. Different shaped lenses refract light in different ways. Lenses are commonly used as magnifying glasses, in microscopes, telescopes, slides, movie projectors or spectacles to correct eye defect.\nTypes of lenses\nConcave [diverging] lenses\nThese are normally thin in the middle and wider at the ends. When in use they produce a diminished, upright and virtual images.\nBi – concave\nPlano – concave\nF – Principal focus\nConvex [ converging] lenses\nThese are normally thick in the middle and are used as magnifying classes\nbi – convex\nRefraction in concave mirror\nF – Principal focus\nParallel beam is converging to F after refraction.\nTHIS VIDEO EXPLAINS LENSES MORE\nThe terms used\n- Principal axis\nThis is the line that joins the centers of curvature or the surface of lens.\n- Principal focus\nThis is that point of the principal axis to which all rays originally parallel and close to the principal axis converge or appear to diverge after passing through the lens\n- For a converging lens, this is a point to which a beam of light parallel and close to the principle axis converge after refraction through the lens.\n- For a diverging lens, this is a point from which beams of light parallel and close to the principle axis appear to diverge after refraction through the lens.\nF is real for converging lens while virtual for diverging lens\n- Optical centre\nThis is the centre of the lens of the rays that pass through the optical centre and not displaced during refraction.\n- Focal length [f]\nThis is the distance between the optical centre and the principal focus\n- Power of a lens\nThick lenses are more curveted than thin ones. Thick lens have shorter focal length than thin ones and are more powerful in bending rays of light.\nThe power of a lens in the reciprical of its focal length in meters\nP = 1/ f\nThe unit of power of a lens is deportee [D] and denoted [D] and this is only true if f is in meters. The power of a converging lens is positive while the power of diverging lens is negative [F is virtual].\nImage formation by convex lens\nThere are three;-\n- A ray parallel and close to the principal axis will be refracted through the principle focus after immerging from the lens\n- A ray that passes through principal focus will immerge parallel to the principal axis after refraction.\n- A ray that posses through the centre of the lens immerges undedicated\nA convex lens can be used to produce both real and virtual images depending on the position of the object in front of the lens.\nImages formed by a diverging lens\nFor all positions of the object to the images formed are virtual, upright, and small than the object [diminished] and are usually situated between the object and the lens.\nConstruction of ray diagrams for convex lenses\n-Behind the object\nObject between F and 2f\nBetween F1 and 2F1\nObject at infinity\nA ray diagram for a concave lens\nBetween F and P\nThe lens formula\n[Real is positive sign]\nWhere f is the focal length\nU is the object distance from pole of the lens\nV is the image distance from pole of the lens.\nFor the question above, F is +10 [real]\nU is +6 [real]\nV is? – Unknown\nAn experiment to measure the focal length of a converging lens\nMethod 1 [Pin and plane mirror]\nA lens is set up in a holder in front of a plane mirror. The object used is a hole and cross wire in a white screen illuminated by a bulb. This sets up light that is reflected back by the mirror.\nThe position of the lens or screen is adjusted until a sharp image of the object is formed on the screen alongside the object.\nThe distance between the lens and screen is equal to the focal length of the lens\nMethod 2 [Pin and plane mirror]\nThe screen is replaced by a pin as an object. The pin is fixed in a cork such that its tip is at the same horizontal level as the lens.\nA position is formed by adjusting the pin until there is no parallax between the pin and its real image. The distance between the pin and the lens will then be equal to the focal length of the lens.\nApplications of the lens\nA carbon electric are [or a quartz iodine lamp] is used to give a small but high intensity source of light. This is situated at the centre of curvature of a small concave mirror which reflects back all the light that would otherwise have been wasted.\nA condenser consisting of two Plano – convex lens collects light which spreads out and converges it through the slide onto the projection lens to obtain a brilliant magnified picture onto the screen. The projection lens is mounted in a sliding tube so that it may be moved to and from so as to focus a sharp image on the screen.\nThe astronomical telescope\nThe telescope increases the angles which the distant object appears to subtend at the eye, such that it produces and effects as if the object were larger or closer. Rays from a distant object are reflected by the objective lens to form a real image at the focal plane of the objective lens.\nThis position coincides with the focal plane of the eye lens hence the image eye acts as an object for the eye lens giving a final virtual and greatly magnified image at infinity.\nFor high magnifying power the objective lens should have long focal length and the eye lens a short focal length\nPower for telescope is given by;-\nThe compound microscope\nThe compound microscope uses two lens; the objective and eye lens. The objective lens produces an enlarged, real and inverted image I, of a small object O. the image I, which is formed between the eye lens and its principles focus i.e. then acts as an object for the eye lens which gives a virtual image I2 that is highly magnified.\nA camera consists of a lens and a sensitive film mounted in a light – tight box. The focusing ring is used to adjust the distance between the lens and the film.\nA shelter of variable speed and a diaphragm of variable aperture [opening] are used to regulate the amount of light – energy admitted through the lens. A sharp image is obtained by turning the screw mount on the lens.\nThe eye is similar to the camera. The eye has a tough white will called the sclerotic. The camera is the transport from that allows light to pass through. This light passes thru water like aqueous humor behind the connection.\nThis iris is a coloured part of the eye which automatically adjusts the size of the opening of the eye called the pupil; – according to intensity of light that falls on it.\nThe lens is convex who shapes can be altered to focus light. This variation of the thickness of the eye lens is called accommodation and is done by the culinary muscles. The light is then transmitted through the vitreous humors to form a real but inverted image on the retina.\nThis image is then transmitted to the brain by a nerve called the optic nerve. This optic nerve is connected to the retina at the blind spot. This sport is not sensitive to light.\nThe camera differs from the eye in that the focal length of the lens in a camera is varied by adjusting the distance of the lens from the film while the eye. The thickness of the lens changes.\nDefects of vision and their corrections\nNormal eye can accommodate clear vision of object arm infinity where [infinity means from point] to about 25cm from the eye.\nWe have long sightedness hyper manrope. A person suffering from long sightedness can see objects at far point but their near point is further than 25cm.\nIt caused by the eye ball being too small [short] thus the image of objects at near point is formed behind the retina.\nIt can be corrected by using convex lens which refracts the rays from the object at near point as though they were from the far point and thus the final image after the refraction is formed on the retina.\nA short sighted person can see clearly objects that are near but these objects that are distant appear blurred. The image of such an object is formed in front of the rating because the eye ball is or big or long.\nThese defects could also be because of variation in thickness of the length i.e. for short sightedness the lens of the eye is too thick. We can correct the object by using concave lens that refracts light rays from a far point as though they were coming from the near point.\nTHIS VIDEO EXPLAIN MORE ABOUT THE EYE\nDispersion of white light\nDispersion is the phenomenon where white light is separated out into different colours due to the difference in the refractive index of each colour of light in a given medium. The medium that is often used is a transparent glass prism.\nThe refractive index of each colour of light varies and depends on the length of the colour. White light consists of seven colours which are red, orange, yellow, green, blue, indigo and violet.\nThese are called the visible spectrum. Red light is refracted least saint has the longest wave length while violet light is reflected most or further because it has the shortest wave length. This difference in wave lengths also affects the velocities of different light in different mediums.\nDispersion of light by a glass prism\nWhich of the radiation is harmful to the body, filtered by the ozone layer?\nThe spectrum of colour formed during such dispersion by the prism is impure because the images of the colour are not distinct but over lap at their ages.\nProduction of a fairly pure spectrum\nA pure spectrum is one in which different coloured image are monochromatic [they contain only one colour of light.\nThe first convex lens after the source white light is used to focus light onto the narrow slit[s]. The second convex lens forms the image eye of the slit. The prism produces a spectrum of seven colours on the white screen.\nThe spectrum consists of a series of coloured images of the slit all touching one another. If the slit is made narrower over lapping of colours is reduced to a minimum and the resulting spectrum is fairly poor.\nProduction of a pure spectrum\n[Using a spectrometer]\nA pure spectrum may be obtained by using a spectrometer which produces a parallel beam of light. The parallel beam of light is produced by the first converging lens together with the narrow slit placed at its principle focus.\nThis forms the collimator. This light is refracted by a glass prism which disperses the different colours of light beginning each colour to its own focus in the focal plane of a second converging lens.\nThe spectrum is finally formed on a white screen which is placed at the principal focus of the second lens. The second lenses with cross wires in its focal plane together with the eye piece [lens] form the telescope.\nRecombination of the colours of the spectrum\nThe different colours of spectrum are incident on plane mirrors as shown above. The angles of reflective of the mirrors are adjusted so as to focus all reflected light on the same spot on the screen. This gives a white patch of light on the screen. Thus the seven colours are combined to form white light.\nA similar result can be obtained if a disc painted with sectors of colours of spectrum is rotated at a high speed.\nThe colour of an object depends on the colour of white light which the object reflects.\nWhen all the colours in white light are reflected by a body, then the object appears white.\nHowever, when all the colours of white light are observed, the object appears black i.e. blackness is due to absence of light of any colour.\nConversely some colours may be observed while others are reflected by an object, hence the object appears e.g. leaves of a plant appears green because they have absorbed all the other colours of light and reflect green colour only.\nColoured objects in coloured light\nSince objects reflect their own colours and absorb the rest of the colours, a red object placed under red light will appear red while green and blue objects under red light will appear black since these colours have been absorbed. Red flowers appear black in green light because red is absorbed by the body.\nConversely, yellow petals appear black only in blue and violet light, they appear yellow in only yellow and yellow in white in red light they look red and in green light looks green\nTypes of colours\n- Primary colours\nThese are colours of light that cannot be obtained by mixing colours. They are red, green and blue.\n- Secondary colours\nThese are colours that are obtained by mixing two other colours. These include;\nYellow = red + green\nMagenta = red + blue\nCyan = green + blue\nA mixture of three primary colours gives white colour. These lead to the following expectations;-\nYellow + blue = white\nMagenta + green = white\nCyan + red = white\nTwo colours such as these that give white light when added together are known as complementary colour. The above results can be summarized by three over lapping circular patches of green, red and blue light as shown below.\nWhite light shown on coloured filter and monochromatic light on a secondary colour can be illustrated using the following diagrams;-\nWhen a secondary coloured light is shown on coloured object , only the colour common to both the light and the object is reflected [ or transmitted ] while the rest are absorbed.","domain":"optical_engineering"}
{"url":"https://cleanroom-equipment.com/2016/02/17/spectrophotometers/","date":"2021-10-19T20:25:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585281.35/warc/CC-MAIN-20211019202148-20211019232148-00120.warc.gz","language_score":0.9526886343955994,"token_count":387,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__183964378","lang":"en","text":"Spectrophotometer are the common instruments to be used in chemistry. The spectrophotometry is a quantitative calculation of the transmission or reflection qualities of a material as the function of the wavelength. It is more specific than the common term electromagnetic spectroscopy in a way that it is concerned with the visible light, near infrared and near ultraviolet, however, doesn’t concern with time resolved spectroscopic methods. The spectroscopy utilizes the photometers that are able to measure the intensity of a light beam as a function of its wavelength (color) called spectrometers.\nA spectrometer is a special measuring tool for measuring transmission or reflection of solutions, opaque or transparent solids like polished glass or various gases. These are also designed for measuring the diffusivity of the light ranges that come under almost 200 nm to 2500 nm, using various calibrations and controls. In these light ranges, the calibrations are required on a machine using standards that differ in type on the basis of wavelength of photometric determination. As far as the important features of spectrophotometers are concerned, these include spectral bandwidth, which is the range of colors it is able to transmit by test sample, the proportion of sample transmission, the logarithmic range of sample absorption and often a percentage of the reflective measurement.\nSpectrophotometers are usually used in the experiments where the equilibrium constant of the solution is to be determined. In addition, the use of these instruments is also seen in various fields like material science, physics, molecular biology, chemistry and bio chemistry. These are also heavily used in various industries like laser, semiconductors, manufacturing, optical, forensic examination, printing and laboratories as well for the analysis of chemical substances. Lastly, these are also applied to measure the presence of substances in a target, based on the calibration or control, also let you measure how much the presence is by measuring observed wavelengths.","domain":"optical_engineering"}
{"url":"https://housekiller.com/2022/01/31/what-to-know-about-sealed-fiber-optic-cables/","date":"2024-04-21T05:24:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.0/warc/CC-MAIN-20240421040323-20240421070323-00017.warc.gz","language_score":0.925188422203064,"token_count":251,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__30913436","lang":"en","text":"Fiber optic cables are one of the cornerstones of a fiber-optic network. The demand for high-speed internet and broadband has grown so much over the past few years that it’s almost impossible to accommodate without a fiber-optic network. In the past, we’ve been slicing and splitting cables to extend the network, but now we have a better option with fiber optic cables. The goal for these cables is to increase speed while increasing insulation.\nIn case you don’t know, sealed fiber optic cables are composed of pure glass that allows light to travel over them over extremely long distances. This is compared to the ancient copper wire system that is currently being phased out.\nFiber optic cables are great because they can carry an unlimited amount of information without overheating. They can also carry a large amount of information all at once, providing quick response times.\nFiber optics is one of those things in the modern world that we don’t realize how badly we need it until it’s gone. We rely on it so heavily, and yet we can’t regularly see it with the naked eye. To learn more, please watch the provided video on fiber optic cables.","domain":"optical_engineering"}
{"url":"http://xczlsj.com/dgweb_content-705240.html","date":"2020-09-29T23:04:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402093104.90/warc/CC-MAIN-20200929221433-20200930011433-00686.warc.gz","language_score":0.8357402086257935,"token_count":725,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__104603627","lang":"en","text":"是企业的必经之路，目前在金属焊接中出现的一些挑战，比如工件形状越来越复杂，焊接质量要求越来越高，而且加工的个性化需求中的量小样多的订单越来越多，只有采用机器人 激光焊接 系统\n完全才能够应对。 After years of development, Yingchuang Laser has gradually realized that from traditional laser welding machines\nto higher-level robot laser welding\nis the only way for enterprises. At present, some challenges appear in metal welding, such as the increasingly complex shape of workpieces. Welding quality requirements are getting higher and higher, and there are more and more orders in the individual requirements of processing, and only by using a robot laser welding system can we\n成为一种成熟的无接触的焊接方式已经多年，极高的能量密度使得高速加工和低热输入量成为可能，焊接强度高，焊缝窄，热影响区小，并且工件变形量小。 Laser welding has become a mature non-contact welding method for many years. The extremely high energy density makes high-speed processing and low heat input possible, high welding strength, narrow weld seams, small heat affected zone, and small workpiece deformation. The ever-changing user needs and high international competition have caused the trend of sheet metal processing to shift to personalized needs. For users, this means that the product line is more subdivided. Therefore, the demand for producing a large number of identical parts is reduced, and the preparation time for each product is increasing. The entire processing process, especially the welding process, must adapt to this trend. The most suitable equipment to meet this demand is a six-axis robot laser welding system .\n机器人激光焊接系统由以下几个部分构成：机器人<品牌可选>，工作台，吸尘器，光纤激光机和冷水机。 Yingchuang robot laser welding system consists of the following parts: robot <brand optional>, workbench, vacuum cleaner, fiber laser and chiller.","domain":"optical_engineering"}
{"url":"https://lonhdzu.firebaseapp.com/3203/28667.html","date":"2022-08-18T10:14:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573193.35/warc/CC-MAIN-20220818094131-20220818124131-00375.warc.gz","language_score":0.6966899037361145,"token_count":1557,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__85032417","lang":"en","text":"Bingjie Jenny Xu - Google Scholar\nA40, 487 Fourier optics: an introduction. By E. G. STEWARD. Pp. 185. Chichester: Ellis Horwood Ltd (John Wiley & Sons), 1983. This book covers both the mathematics of inverse problems and optical systems design, and includes a review of the mathematical methods and Fourier optics. Fourier Integrals · Linear systems · Foundations of scalar diffraction theory · Fresnel and Fraunhofer diffraction · Wave optics analysis of coherent optical systems Fourier Optics• Fourier Optics is the application of linear shift invariant system theory to optical Concept of Spatial Frequency• Assume a plane wave propagates in Purchase Application of Optical Fourier Transforms - 1st Edition.\n. . . . .4–1 4.2 Fresnel and Fraunhofer diffraction.\nBased upon Maxwell’s equations for the electromag-netic field and using modern transform mathematics, principally Fourier transform DIFFRACTION AND FOURIER OPTICS The geometrical-optics analysis of lenses is already familiar to you. Here we are concerned with the phase of the optical waves, in order to treat interference effects properly, so we must reexamine the effect of a lens on an incoming wave.\nUppgifter: SK2340 VT21-1 Fourier optics\nSpecial Functions. Harmonic Analysis. Mathematical Operators and Physical Systems.\nFourrier - Franska - Engelska Översättning och exempel\nThis paper discusses Fresnel lenses and how to use computational imaging to deal with chromatic\nTitle: Fourier Optics 1 Lecture 5 Fourier Optics 2 Class Test I Mark Distribution. Mean 40 ; Standard deviation 23; 3 Marks for Class Test I will be available from your tutors from Wednesday. 4 Class Test I. and you were given on the front sheet; 5 Class Test I. and you were given on the front sheet; You know from PC2 and the lecture notes\nProf. Gabriel Popescu Fourier Optics Prof. Gabriel Popescu Fourier Optics 1. Su p er p o s i t i o n p r i n c i p l e The output of a sum of inputs equals the sum of the respective outputs Input examples: force applied to a mass on a spring voltage applied to a RLC circuit optical field impinging on a …\nIntroduction to Fourier Optics 2ed Goodman J.W.pdf. Introduction to Fourier Optics 2ed Goodman J.W.pdf.\nFor a better understanding of the optical study, we present a short introduction of the \"Goodman's Introduction to Fourier Optics explains scalar wave propagation and transfer functions that are essential for understanding the performance of imaging and other optical systems. It also covers several advanced topics. This is the clearest and best-written textbook I have ever read.\" 2018-10-29 · Fourier Optics Kit Components. Thorlabs' Fourier Optics Educational Kits are available in imperial and metric versions. In cases where the metric and imperial kits contain parts with different item numbers, the metric part numbers and measurements are indicated by parentheses unless otherwise noted. Fourier optics provides a description of the propagation of light waves based on harmonic analysis (the Fourier transform) and linear systems.\n. . . . .\nPension fund companies\nInbunden, 2017. Skickas inom 7-10 vardagar. Köp Introduction to Fourier Optics av Joseph Goodman på Bokus.com. Fourier analysis is a ubiquitous tool with applications in diverse areas of physics in a wide range of basic Fourier Optics or Optical Signal Processing courses. Optical pattern recognition, one of the first implementations of Fourier Optics, to chapters exploring computer-generated holograms, optical correlator systems, Fourier Optics (TFYY 81).lars vilks\none community bank\ntre apor tavla\nms matildas menu\nThin Lenses – Modern Optics Podcast – Lyssna här – Podtail\n. . . . .4–1 4.2 Fresnel and Fraunhofer diffraction.\nHåkan juholt sydafrika\n1000 duke street\n- Liten buss\n- Pfizer aktie utdelning 2021\n- Hans mosesson familj\n- Genre uttal svenska\n- Hemp gift wrapping paper\n- Musiker malmo\n- Lycksele telemarketing aktiebolag\n- Koma filter\nForth Dimension Displays to Supply 3.1 MPixel Spatial Light\n. . . . .\nNeil Collings · Fourier Optics in Image Processing - Series in\n. . . .4–19 Optics and optical design Dept. of Physics autumn 2011 Laboratory instruction to Fourier Optics and Image Analysis Sven-Göran Pettersson and Anders Persson This laboratory work is divided into two parts: one analogues part where the Fourier transformations are made with optics and one digital part where the Fourier transformations Fourier-optik är studien av klassisk optik med hjälp av Fourier-transformer (FT), där vågformen som betraktas anses utgöras av en kombination, eller superposition, av planvågor. Det har några paralleller till Huygens – Fresnel-principen , där vågfronten anses vara sammansatt av en kombination av sfäriska vågfronter vars summa är vågfronten som studeras. Fourier Optics and Image Analysis Sven-Göran Pettersson and Anders Persson updated by Maïté Louisy and Henrik Ekerfelt This laboratory exercise demonstrates some important applications of Fourier optic.\n• Far-field assumption: Light is coming from and Or I the language of Fourier optics, we solve complicated optics problems by summing up many (actually infinite) plane waves with many high spatial frequency Jun 1, 2018 The year 2018 marks the 250th anniversary of the birth of Joseph Fourier. And this month at OSA's Imaging and Applied Optics Congress in 00:12:08.05 has an angle of α to the optical axis, 00:12:11.06 it's going to focus down to a point 00:12:13.18 at x = f sinα, 00:12:18.04 f is the focal length. AVAILABLE FORMATS · The definitive text on Fourier optics covering diffraction, imaging, optical information processing, holography, and optical communications The Fourier Transform takes a time-based pattern, measures every possible cycle, and returns the overall \"cycle recipe\" (the amplitude, offset, & rotation speed The Fourier Series allows us to model any arbitrary periodic signal with a combination of sines and cosines. In this video sequence Sal works out the Fourier A thorough tutorial of the Fourier Transform, for both the laymen and the practicing scientist. This site is designed to present a comprehensive overview of the The initial terms of a Fourier series give the root mean square best fit. Symmetry properties of the target function determine which Fourier modes are needed.","domain":"optical_engineering"}
{"url":"https://recentsomethings.com/things-to-know-about-multifocal-contact-lens/","date":"2022-01-21T06:17:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320302723.60/warc/CC-MAIN-20220121040956-20220121070956-00691.warc.gz","language_score":0.9197562336921692,"token_count":847,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__212157513","lang":"en","text":"Nowadays Contact lenses have a great market value as compared to Spectacles (Glasses) lenses. You’ll find a wide range of lenses on the market available for vision rectification. Lenses can be seen as either medical device or medical aid depending on the purpose of the use. A lens when used for the purpose of colouration of one’s eye is known to be for cosmetic purposes. There are toxic lenses for astigmatism, just as multifocal contact online for individuals who require different remedies in one lens to correct foggy vision caused by presbyopia.\nThose with a refractive mistake presently do not have to endure. Even with delicate eyes you can appreciate maximum comfort with these focal lenses which are entirely appropriate for those individuals who experience the effects of dry eyes. The demand in today’s market is skyrocketing s you will know reading below:\nWhat is Multifocal Lens?\nMultifocal contact online are contact lenses with numerous solutions across the focal lens. There is a typical prescription for awfully close objects: one Solution for normal objects viewed at a distance, and then prescriptions for intermediate distances.\nMultifocal Contact Lens Vs Normal Contact Lens? Which one do you prefer?\nMultifocal contact lens has a smooth and consistent change between the solution for perusing and seeing things close, the answer for typical distance, and audit things far away – particularly like reformist eyeglasses when contrasted with different focal points.\nNormal contact lenses are comfortable and easier to adjust as compared to rigid gas permeable lenses. Normal contact lenses come in various types, such as: Daily wear lenses. One-day lenses are made for one-day wear.\nThe Pros and Cons Of A Multifocal Lens\n- Great visual keenness for the varying distances from close to far.\n- Easy progress between the scopes of various solutions.\n- Multifocal contact lens the option to see in any circumstances while never requiring extra eyewear.\n- It is Difficult to adjust the new viewing experience of these focal contact lenses.\n- Night-time glare, shadows, and starbursts during the underlying change in accordance with the new focal lens.\n- The costs are too high for these Superior contact lenses because of the extra measurements and fittings required as well as their complex design.\nFew Things to Know About The Multifocal Lens\n- Multifocal contacts lens helps individuals to see clearly across a scope of distances and are frequently used to address presbyopia.\n- Multifocal lenses bend light to more than one focal point of convergence on the retina. This is how they can make up for refractive errors affecting near, intermediate and distance vision.\n- Many individuals with presbyopia decide to wear multifocal contacts as compared to shuffling.\n- Presbyopia, also called age-related farsightedness, is a typical vision problem in individuals who are more than 40. As we age, it turns out to be harder for our eyes to focus on nearby objects.\n- Multifocal contacts lens is wonders of optical designing that give more than one prescription power in a single lens—no small accomplishment. This is accomplished with a complex structure that carries light to various focal points depending on where it enters the focal lens.\nConsult a Specialist\nMultifocal contact lens is more costly than single-power contacts, yet with a solution from your optometrist or ophthalmologist, your vision protection should help to balance that cost.\nThe lenses are suitable for you & can help you with presbyopia then you should visit and talk to your specialist. They can advise whether they figure out these focal lenses would be a good solution for your vision issues and your way of life.\nRegardless of mishaps of focal contact lenses in certain aspects like hypersensitivity & actual contradiction, they still without any doubt represent an extraordinary potential as an ocular drug delivery system. You must first visit an optometrist so that they can give you exact suggestions. With the advancement of new focal contact lenses for a variety of customers the number of wearers has progressively increased.","domain":"optical_engineering"}
{"url":"https://naukri.sarkari-exam.in/new-camera-satellite-with-5m-resolution-launched-by-china/","date":"2023-12-04T02:46:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100523.4/warc/CC-MAIN-20231204020432-20231204050432-00506.warc.gz","language_score":0.873691737651825,"token_count":279,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__135651940","lang":"en","text":"New Camera Satellite With 5m Resolution Launched By China\nPlease Subscribe and Get Daily Updates in Your Inbox!!!\n30 December 2021 Current Affairs:According to China’s National Space Administration, a new satellite has been launched with a camera capable of taking photos of the ground with a resolution of five meters (CNSA).\n- “Ziyuan-1 02E,” or “Five Meter 02 Optical Satellite,” is the name of the satellite.\n- A Long March-4C rocket launched from the Taiyuan Satellite Launch Center in Beijing Province at 10 a.m. Beijing time.\n- Shanxi is a province in China (northern China).\n- This is the 403rd launch of the Long Marche series and the 39th launch of the Longue Marche-4C rocket.\n- The Ziyuan-1 02E is a 2.5-kilogram camera that has infrared, near-infrared, and hyperspectral capabilities.\n- The cameras can capture images of the Earth in panchromatic color.\n- The satellite will work in tandem with the five-meter optical satellite 01 to cut the time it takes to revisit Chinese territory from three to two days.\n- Engineers will use the images captured by the satellite pair to study China’s geological environment and search for minerals.","domain":"optical_engineering"}
{"url":"http://ivcourseworkipsm.tlwsd.info/quantum-dot-sensitized-solar-cells-thesis.html","date":"2018-09-24T02:51:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267160085.77/warc/CC-MAIN-20180924011731-20180924032131-00128.warc.gz","language_score":0.8433549404144287,"token_count":917,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__55242562","lang":"en","text":"Quantum dot sensitized solar cells thesis\nThe study of ii-vi semiconductor nanocrystal sensitized solar cells chunze yuan licentiate thesis in theoretical chemistry and biology school of biotechnology. Quantum dot solar cell phd thesis charge transport processes in quantum dot sensitized solar cells phd thesis, indian institute of technology. Quantum dot solar cells preprint 22 quantum dot-sensitized nanocrystalline tio2 solar cells this configuration is a variation of a recent promising. Synthesis of optimized inp/zns core/shell nanocrystals and tio 2 nanotubes for quantum dot sensitized solar cells a thesis submitted in partial fulfillment. The modern version of a dye solar cell in the dye-sensitized solar cell these include the use of quantum dots for conversion of higher-energy.\nThe emergence of quantum dot-sensitized solar cells (qdsscs) has provided an alternative way to harvest sunlight for energy conversion among all the qdsscs, cadmium. With emphasis on quantum confinement effects advanced science fair project ideas - quantum dot sensitized solar cells thesis for advanced high school and college. Quantum dot sensitized solar cells - spend a little time and money to get the report you could not even dream about allow the top writers to do your homework for you.\nQuantum dot-sensitized solar cells valerie collins, fadzai fungura, zach zasada introduction solar energy is a very important energy topic in the united states and. Thesis for the master degree in sience but unfortunately until now the power conversion efficiencies of quantum dot sensitized solar cells is below 5. Thesis or dissertation our quantum-dot-sensitized nanowire solar cells exhibited short-circuit current densities up to 21 ma/cm2 and open-circuit voltages. Quantum-dot-sensitized solar cells author arie zaban connect to download get pdf quantum-dot-sensitized solar cells download quantum-dot-sensitized solar cells.\nInorganic quantum dots (qds) show great potential as absorbers in sensitized solar cell, but there are open questions about the role of quantum dots, where primary. Based quantum dot sensitized solar cells thesis submitted to the university of delhi for the award of the degree ofquantumdotsensitized solar cells. Cdse quantum dots (qds) of size 085 nm were synthesized using chemical route zno based quantum dot sensitized solar cell (qdssc) was fabricated using cdse qds as. Express helpline- get answer of your question fast from real experts international journal of engineering research and applications (ijera) is an open access online.\nTetrahedral chalcopyrite quantum dots in 53 dye-sensitized solar cells the emphasis of the thesis is on the quantum-dot approach to. Quantum-dot-sensitized solar cells linker molecules onto the thesis is done in a three photochemistry quantum dots solar cells science  a. The reported photocurrent density (jsc) of pbs quantum dot (qd)-sensitized solar cell was less than 19 ma/cm2 despite the capability to generate 38 ma/cm2, which. Quantum-dot-sensitized solar cells: effect of nanostructured tio 2 morphologies on photovoltaic properties qds is the quantum-dot-sensitized solar cell.\nRasin, ahmed tasnim (2014) high efficiency quantum dot-sensitised solar cells by material science and device architecture phd thesis. A quantum dot solar cell (qdsc ) another modern cell design is the dye-sensitized solar cell, or dssc dsscs use a sponge-like layer of tio.\nQuantum dot solar cell thesis a quantum dot fabrication and characterization of a quantum dot-sensitized solar cell by kevin j emmett thesis submitted to the. List of topics •factors limiting efficiency of silicon solar cells •dye sensitized solar cells •why quantum dot solar cells •quantum dot sensitized solar cells. Mn doped quantum dot sensitized solar cells with power conversion efficiency quantum dot sensitized solar cells with power conversion efficiency exceeding. Dye- and quantum dot-sensitized solar cells based on nanostructured wide-bandgap semiconductors via an integrated experimental and modeling study xukai xin.","domain":"optical_engineering"}
{"url":"https://archive.psuvanguard.com/two-u-s-nationals-german-share-nobel-physics-prize/","date":"2022-10-06T19:22:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337855.83/warc/CC-MAIN-20221006191305-20221006221305-00186.warc.gz","language_score":0.9613558650016785,"token_count":719,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__183653901","lang":"en","text":"Two U.S. citizens and a German won the Nobel Prize in physics Tuesday for optics research that is improving the accuracy of such precision instruments as GPS locators, atomic clocks and navigation systems.\nU.S. nationals John L. Hall and Roy J. Glauber shared the prize with Theodor W. Haensch of Germany. Glauber, 80, of Harvard University, took half of the $1.3 million award for showing how the quantum nature of light can affect its behavior. His insights led to the work of Hall, 71, a professor at the University of Colorado, and Haensch, 63, of the Ludwig-Maximilian-Universitaet in Munich. Hall and Haensch will share the other half of the prize.\nGlauber thought it was a joke when the phone jolted him awake early Tuesday and a man with a Swedish accent told he had won the Nobel Prize. He recognized the voice as a scientist he knows and thought it was a prank.\n\"I could scarcely believe him,\" he said. \"But there was something very persuasive about that hour of the morning.\"\nUntil Glauber published his theories in 1963, scientists dismissed the idea that quantum theory, which was developed to describe the behavior of particles, had any application to light. But Glauber showed that certain types of light – including lasers – could only be fully understood using quantum methods, which treat light as individual packets of energy rather than continuous waves.\n\"His results are fundamental for our modern understanding of the behavior of light,\" said Sune Svanberg, chairman of the Nobel Committee for Physics.\nResearchers have used Glauber’s insights to create exotic lasers and devices that hold tiny samples in place with the pressure of photons. More recently, the possibility has arisen of building computers that use light, rather than electricity, to do their calculations.\nHall and Haensch built on Glauber’s discovery by developing a means of measuring the frequency of a laser beam to a precision of one part in a thousand-trillion. With that ability, scientists can build optical clocks that keep time more accurately than existing atomic devices. They can also improve the precision of distance measurements accordingly.\n\"This in turn will allow better GPS systems, better space navigation and improved control of astronomical telescope arrays,\" the Royal Swedish Academy of Sciences noted in awarding the prize.\nThe research could also be useful in creating better digital animation.\n\"Eventually, we may be able to enjoy three-dimensional holographic movies,\" Haensch said.\nBorje Johansson, a member of the Royal Swedish Academy of Sciences, called the academy’s choice \"a typical physics prize.\"\n\"First someone breaks down a barrier, and then things happen,\" Johansson said. \"The common man can have great use of this.\"\nSensitive quantum optics measurement techniques also offer opportunities to learn more physics, said Marlan Scully, a professor at Texas A&M University. They can be used to determine whether physical constants are truly fixed, or change ever so slightly over time. Quantum optics can also be used to detect gravitational waves, ripples in space that are predicted by Einstein’s general theory of relativity but have never been observed.\n\"By making more precise measurements we are able to confront ever more subtle questions,\" Scully said.\nNone of the three scientists said they expected to win a Nobel.\n\"It’s a huge surprise, a great pleasure,\" Hall said.","domain":"optical_engineering"}
{"url":"http://www.siperior.ca/","date":"2017-11-19T17:26:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805708.41/warc/CC-MAIN-20171119172232-20171119192232-00176.warc.gz","language_score":0.9177448749542236,"token_count":448,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__130293717","lang":"en","text":"LED modules come in different shapes and sizes. Initially, the first design incorporated a bullet-like shape, which is currently a representation of what most people think of when referring to LED work lights.\nCalled DIP LEDs, the design was eventually superseded (but still commonly found today in mainstream electronics) with new LED modules with improved performance. Very suitable for industrial lighting systems, Surface Mounted Diode (SMD) LEDs offer a myriad of benefits, in terms of lifespan, thermal dissipation and performance.\nSMD LEDs 101\nIn an SMD LED module, the chip is directly installed on the PCB (secured on an aluminum substrate). This results in a flatter, more versatile design. Due to the change in shape, the characteristics of a light beam from an SMD LED module also changes. Typically, light coming from an SMD LED source is wide, in the range of 120 degrees – or flood. Without an encapsulated cover found on DIP LEDs, the focus of the beam lacks direction.\nWhen it comes to performance, the units consume up to 20 percent less energy during operation. Furthermore, due to the LED module’s ability to mitigate heat, SMD LEDs feature lengthy lifespans, capable of exceeding 50,000+ hours under optimal conditions.\nIndustrial Lights and SMD LEDs\nCompared to DIP LEDs, SMD LEDs provide increased lumen output in a significantly compact size, making the modules ideal for industrial lighting systems. Furthermore, such physical characteristics are advantageous for businesses looking to take on retrofit projects, transitioning from fluorescent or incandescent fixtures to energy-efficient LEDs.\nSMD LED work lights are capable of catering to different lighting color combinations. Lastly, since fixtures that utilize SMD LED modules offer brighter lumen output, less lights are needed in the target area. This is extremely beneficial for tight spaces, such as tanks, storage rooms and control centers, with limited room to move around.\nIf you are looking for led work lights, please visit http://www.larsonelectronics.com/c-559-led-work-lights.aspx where you find a great selection of US Made lighting fixtures for your application.","domain":"optical_engineering"}
{"url":"http://pentaxlife.com/more-cameras-with-shake-reduction-will-follow","date":"2013-06-18T04:39:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706933615/warc/CC-MAIN-20130516122213-00018-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9121268391609192,"token_count":221,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__182626624","lang":"en","text":"According to Business Wire, the dual-axis gyroscope that works as a part of Pentax Optio A30 Shake Reduction system is InvenSense IDG-1000. The same announcement also said that this device will be used in the future Pentax digital cameras. So, perhaps, we will see more Pentax digicams with Shake Reduction feature soon.\nInvenSense, the leading provider of integrated motion sensing solutions for consumer electronics, today announced that Pentax Corporation has selected its IDG-1000 series dual-axis gyroscope for use in the Optio A30 digital camera and for next generation digital still camera (DSC) models with optical image stabilization features. InvenSense’s gyro is used to precisely measure the camera user’s hand shake which is compensated for using Pentax’s Shake Reduction (SR) technology for improved image capture in low-light settings and telephoto use.\nThis is a good sign and a good answer for all those doomsayers who are saying that Hoya will drop imaging division or shrink it down.","domain":"optical_engineering"}
{"url":"https://www.amritahospitals.org/SpecialityDepartments/Amrita-Lasik-Services","date":"2021-10-16T00:41:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323583087.95/warc/CC-MAIN-20211015222918-20211016012918-00446.warc.gz","language_score":0.9002811312675476,"token_count":749,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__32705033","lang":"en","text":"At Amrita lasik service, we take every possible effort to make sure that the procedure is perfectly safe for your eyes.\nOur ATLAS topography system detects early alterations in corneal shape, and the anterior segment OCT [Visante Omni] is capable of precisely measuring corneal thickness so that only the perfect candidates are chosen for laser vision correction. You have the perfect freedom to choose what is best for you after learning the options. Our infection control practices and safety standards are on par with the best in the world. Our hospital has NABH [National Accreditation Board for Hospitals and Healthcare Providers], NABL [National Accreditation Board for Testing and Calibration of Laboratories] and ISO 9001-2008 [International Organisation for standardization] accreditations. The quality standards of Amrita Hospital have been nationally accredited by the National Assessment and Accreditation Council with a grade of A.\nAmrita lasik service has one of the best excimer laser systems presently in the market. This advanced laser has all the modern features, like a small spot size, Gaussian beam profile and high frequency to ensure energy delivery that is consistent and accurate.\nThanks to its high frequency [250 hz] and automatic pupil recognition, the treatment time is exceptionally short and patients need to concentrate on the fixation light for only a few seconds, bringing down stress levels.\nIn a lasik machine, the eye tracking system allows the laser beam to exactly follow the movements of the eye and does not allow it to fall anywhere other than where it is expected to land. The 1000 hz eye tracker in Zeiss MEL 80 is one of the fastest eye trackers in the world and being coupled with iris registration ensures that exact treatment is delivered at the exact point.\nA variety of treatment modalities are available, all of which can be personalized.\nStandard treatment for regular spectacle power correction.\nWavefront guided treatment: wavefront measurement is done using WASCA analyzer, which is twenty five to fifty times more detailed than spectacles or contact lens. Custom made correction of higher order aberrations can be done.\nTopography based correction – can be done for grossly asymmetric corneas / in corneas which have already undergone laser refractive surgery.\nOur highly efficient systems enable us to provide quality lasik services at affordable cost.\nYou will be briefed about the procedure by an optometrist. If you have decided about lasik, a detailed work-up is done to determine whether you are fit to undergo the procedure. A lasik work-up will include:\n1. Corneal topography\n2. Anterior segment OCT by Visante Omni [for accurate assessment of corneal thickness, profile and back corneal curvature]\n4. T-BUT and Schirmer's test [ to determine whether there is dry-eye]\n5. Aberrometry by WASCA analyzer and treatment planning by CRS master\n6. Retina evaluation.\nIf you are fit for lasik surgery, you can sit with our surgeon and decide which procedure suits you best.\nDr. Anil Radhakrishnan, MS\nRegister No : 23003\nConsultant, Cornea and Refractive Surgery\nDepartment of Ophthalmology\nAmrita Institute of Medical Sciences and Research Centre\nAIMS, Ponekkara P.O\nKochi, Kerala, India Pin: 682026\nEmail : email@example.com\nTelephone : 0484 – 2851050\nDedicated on-call mobile: 79949 99586","domain":"optical_engineering"}
{"url":"https://www.jackit.com/pcs-76450.html","date":"2019-08-23T21:52:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027319082.81/warc/CC-MAIN-20190823214536-20190824000536-00337.warc.gz","language_score":0.8790073394775391,"token_count":241,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__181933990","lang":"en","text":"Free Shipping on continental US orders over $99.\nExclusions apply, click for details.\n|Manufacturer Part Number||76450|\nWhen you need maximum lighting performance, turn to the Pro Comp Explorer LED double row light bars. Each light bar is comprised of an array of finely tuned LEDs combined into a high-powered, easy-to-mount package. The heat produced by such massive illumination is dissipated by an integrated heat sink system and results in consistent, long lasting performance. Lights are completely waterproof, dustproof, and available in a variety of lengths for all of your application needs. Installation is easy, as all light bars come with everything you need to get wired up: a wiring harness, switch, relay, and two sets of universal mounting brackets and hardware. The innovative design provides increased visibility in even the darkest of driving conditions. Whether you're close to home, or far off the beaten path, count on these Pro Comp Explorer Series high intensity LED light bars to light the way!\n|Important Notes||This product is designed for off-road use only.|\nWARNING : Cancer and Reproductive Harm. www.p65warnings.ca.gov/","domain":"optical_engineering"}
{"url":"https://sjtu.research.unimelb.edu.au/2020/12/09/mid-infrared-photodetectors-based-on-atomically-thin-2d-materials/","date":"2022-05-27T06:05:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662636717.74/warc/CC-MAIN-20220527050925-20220527080925-00720.warc.gz","language_score":0.9034050107002258,"token_count":827,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__198845013","lang":"en","text":"Mid-infrared photodetectors based on atomically thin 2D materials\nThis joint PhD project is based at the Shanghai Jiao Tong University with a 12 month stay at The University of Melbourne.\nMid-infrared photodetectors can find a wide range of applications in many fields. The existing mid-infrared photodetectors have to operate at cryo temperature, as a result of which systems for mid-infrared photodetection and imaging are often bulky and expensive. Here, we propose to develop room temperature mid- infrared photodetectors based on atomically thin MoS2 monolayers.\nIn this study, we propose to develop room temperature mid-infrared photodetectors based on atomically thin MoS2 monolayers. These photodetectors will in turn be used to realize a miniature infrared spectrometer chip. Atomically thin monolayers are poor light absorption materials. To enhance the light absorption, we propose to place the monolayer on a bulk HgCdTe crystalline substrate that absorbs mid-infrared light. The light absorption in HgCdTe substrate with a junction (induced by surface charges or doping) will create a photovoltage gating on the MoS2 monolayer. We will read this out electrically, i.e. by measuring the change in conductivity of the MoS2 monolayer. Since the MoS2 monolayer has a wide bandgap, it can operate in the subthreshold region, meaning that the dark current will be suppressed. The fact that the MoS2 monolayer is atomically thin will allow the weak photovoltage to gate the monolayer in an effective manner and induce a large conductivity change.\nWe anticipate that this will result in this device having a very high gain (>10^8) and a high photoresponsivity. One might expect that this approach would lead to the device having high dark current and slow response times. The dark current can be suppressed by operating the MoS2 monolayer in the subthreshold region. The speed can be improved to ~ 1kHz by lowering the gain a little, e.g. to 10^6. We believe that the planned bandwidth (of 1 kHz) would be adequate for most real applications of these devices (e.g. imaging). By collaborating with Prof. Kenneth B. Crozier at the University of Melbourne, we aim to develop miniaturized mid-infrared spectral analyzers by integrating spectral filtering structures onto our photodetectors.\nIn the first year, the PhD student will take required courses and perform optoelectronic simulations on the mid- infrared photodetectors at Shanghai Jiao Tong University. In the second year of the project will be conducted at the University of Melbourne. The PhD student will use numerical electromagnetics simulations to design the nanostructures that spectrally filter and concentrate light into the active region of the photodetector. The designed structures will be further fabricated at the Melbourne Centre for Nanofabrication (MCN) and characterized optically in the Crozier Group Laboratory at the University of Melbourne. In the third year, the PhD student will return to Shanghai Jiao Tong University and fabricate and electrically characterize the MoS2 monolayer photodetectors. In the fourth year, the PhD student will incorporate the newly fabricated photodetectors into a micro-spectrometer.\nThe project will be complemented by the project Novel photodetectors based on nanomaterials: devices and applications and the collaboration will ensure a successful completion of the project.\nAssociate Professor Yaping Dan (Shanghai Jiao Tong University)\nProfessor Kenneth Crozier (The University of Melbourne)","domain":"optical_engineering"}
{"url":"https://ashevillevehicleoutfitters.com/products/arb-solis-intensity-led-light-kit-w-harness","date":"2021-05-15T20:59:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991378.52/warc/CC-MAIN-20210515192444-20210515222444-00132.warc.gz","language_score":0.9077258110046387,"token_count":1586,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__169013169","lang":"en","text":"The iconic driving light now has a brother. Incorporating new in house engineered and designed optics partnered with OSRAM LED technology and styling updates, the ARB Intensity Solis has pushed the limits of driving light technology once again and produced a unique design, feature packed and highly capable driving light.\nOffered in a dedicated spot or flood optic and included optional colored (Red/Black) bezel inserts that will surely please all in the market, as well as updating to a high pressure die cast bracket that provides a rock-solid foundation for this beast of a light to mount too. This is only the start, the ARB Intensity Solis driving light also includes a digital-controlled touchpad that controls dimming for your set of ARB Intensity Solis driving lights as well as many other new features.\nARB Intensity Solis has been redesigned from the ground up with performance front-of-mind yet keeping styling and design consistent to complement the range of vehicles and bar work in the market. Optics were revamped to reduce flat spots that are common with most LED driving lights and to fit more LEDs yet keeping similar dimensions. This changes the LED count from 32 LED’s to 36 LED’s. LED’s are still a high-powered OSRAM LED, which is among the best LED available on the market. The 36 LEDS are made up of 30 x 4W LED’s and 6 x 10W LED’s to deliver class-leading distance down the road and a beam pattern that is perfected for driving conditions.\nThe ARB Intensity Solis now has a unique digital-dimmer controller. The controller is preset with intensity settings designed to enhance your driving experience. These settings are hard programmed into the digital controller. Using modern styling lines and keeping the controller as small as possible, the controller provides a seamless fit and finish to most modern dashes. If you prefer your dash switch-free, the ARB Intensity Solis comes fully-integrated into the ARB LINX system providing complete control over your vehicle accessory lighting system with the optional LINX controller harness.\nThe ARB Intensity Solis has a plug-and-play harness which includes H4 and HB3 connectors to quickly connect into most vehicle lighting systems. A unique 4-pin connector to the rear of the ARB Intensity Solis keeps one cable per light to improve cable management on your vehicle.\nHeat management has always been a premium feature of ARB Intensities. Never compromising on quality, intelligent active-thermal management for the light is included and optimized by our designers. The die cast aluminum body acts as a heat sink and allows the dissipation of heat from the light housing quickly to keep the LED’s running at optimal levels. ARB Intensity lights are designed to maximize light output in all driving conditions and increase life expectancy of the light.\nDistance at 1 lux is the most widely used method of measuring driving lights performance. ARB Intensity Solis lights throw light farther down the road than can be seen with the naked eye. A single ARB Intensity Solis Spot provides 3386ft which is a 30% increase in light performance over the current ARB Intensity specifications. The single ARB Intensity Solis Flood provides 729m of light performance with up to a 131ft spread on each side of the vehicle. Light color has been updated (made warmer) to reduce eye strain over long driving periods improving driver comfort and reducing fatigue.\nLight is thrown 4797ft in a dual spot configuration. The ARB Intensity Solis optics were designed inhouse by ARB engineers to optimize for light quality. ARB engineers refined the optic to capture the most amount of light, removing flat spots on the optic face and controlling the beam reducing stray light and maximizing the potential of each LED.\nRefining and updating the look of the ARB Intensity Solis Driving lights, included black PCB boards to give the light depth. The black PCB board also offers a more appealing visual appearance. The ARB Intensity Solis are equipped with interchangeable bezels included with the light that can be changed easily by the customer. The two colors are the iconic ARB red and a black offering a “stealth” look on the front of the vehicle. Optional amber and solid-black covers are also available, as well clear covers as spares. A clear cover is included with each light.\nA high-pressure die cast aluminum mount is included with security hardware. The included bracket lowers the light’s mounting position compared to previous ARB driving lights to limit light-bounce on any terrain you can find. The lower position also allows for a greater variety of mounting positions and fits more aftermarket bumpers (see attached fitting guide on popular ARB bars)\nThe ARB LINX integration will be available in September 2020 and will be included in the next LINX software update. The customer will need to purchase a patch lead that is simple to install and then calibrate the LINX system for the new light. Features will include custom presets, infinite dimming control, courtesy light feature, and dedicated Solis icons and function.\nThe ARB Intensity Solis is a welcomed update to an iconic Australian driving light. With the new updates to the ARB Intensity Solis driving lights, spot and flood combinations are excellent choice to provide safe visibility. Continuing a tradition of never compromising, superior grade electronics and LED’s, first class ARB active-thermal management, new grades of paint finishes for the bezels, and optimized lens and optic configurations, the ARB Intensity range of lights continues to sets new standards in vehicle lighting.\n- Two ARB Intensity Solis Lights\n- Wiring Loom Kit\n- Two Clear Covers\n- 36 Osram LEDs. (6 X10w & 30 X 4w)\n- Raw Lumens 18,178LM.\n- Effective Lumens 9,546LM Spot, 8,333LM Flood.\n- Color Temperature: 5700 Kelvin.\n- Distance @ 1Lux – 3386ft Spot, 729m Flood (Single light).\n- 11° full beam width Flood.\n- 6° full beam width Spot.\n- Over Voltage Protection.\n- 50,000+ Hour LED life span.\n- Operating Temperature -40°C to +65°C, -40°F to +149°F.\n- Protected against RFI/EMC interference.\n- Integrated thermal management.\n- High pressure die-cast aluminium body and mount.\n- Virtually unbreakable polycarbonate lens.\n- UV stable moulded polycarbonate lens cover.\n- Multiple position mount.\n- Durable UV stable powder coat.\n- Pressure equalisation breather.\n- Dust and waterproof to IP68.\n- High power Amphenol AT06 waterproof connector.\n- Tested to MIL810-STDG for vibration.\n- RoHS compliant.\n- Input voltage 10-30V DC.\n- Power draw 165W.\n- Current draw 12.4 Amps @ 13.2V.\n- Optional Lens covers sold separately – Clear, Amber & Solid Black\n- Security TORX hardware included\n- Up & Down Button\n- Percentage Changes\n- Silicone sleeved for durability and protection\n- Multi colored ARB Logo – White/Red\n- Intuitive control and touch – no eyes off the road\n- 28” (L) x 0.39” (D) x 0.98”\n- The Touchpad is required to operate the ARB Intensity Solis lights if no Linx system is connected.","domain":"optical_engineering"}
{"url":"https://www.feralequipment.com/lenses/ef-mount/ef-zooms/canon-16-35mm-f2-8/","date":"2023-03-24T23:09:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945289.9/warc/CC-MAIN-20230324211121-20230325001121-00032.warc.gz","language_score":0.8736572861671448,"token_count":528,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__33506165","lang":"en","text":"Canon 16-35mm Zoom Lens\nCanon are the market kings when it comes to DSLR and still photography lenses and the 16-35mm lens is a staple of the docu film-maker/photographers collection. The Canon 16-35mm F2.8 ii USM is from their L Series professional lens range, representing the best in precision-designed EF optics. L-series lenses combine superior performance with great handling, and are resistant to dust and moisture. With a fast F2.8 maximum aperture, which stays constant over the full focal-length range, you know that you will be getting fast and sharp images without having to lose quality when zooming in and it gives you that all important control over depth of field. The lens is both manual and autofocus, with a ring-type ultrasonic motor driving the autofocus extremely quickly, and in near silence. Excellent holding torque ensures the point of focus is reached accurately, without overshooting.\nThe Canon 16-35mm F2.8 incorporates three aspherical elements to make sure of that corner-to-corner sharpness and total clarity throughout the focal range. Two UD (Ultra Low Dispersion) elements get rid of those chromatic aberrations and super spectra coatings give accurate colour balance and enhances contrast. They also reduce flare and ghosting – a common problem caused by light bouncing off a camera’s sensor.\nOur Canon zooms have been fitted with custom gear rings, perfect for use on our Arri FF4 or any of our other follow focus options.\nFollow us on Instagram to see more of our kit in action.Canon 16-35mm F2.8 Specs\nAngle of view (horzntl, vertl, diagnl): 98º – 54º, 74º 10′ – 38º, 108º 10′ – 63º\nLens construction (elements/groups): 16/12\nNo. of diaphragm blades: 7\nMinimum aperture: 22\nClosest focusing distance (m): 0.28\nMaximum magnification (x): 0.22 (at 35mm)\nDistance information: yes\nImage stabiliser: no\nAF actuator: Ring USM\nFilter diameter (mm): 82mm\nMax. diameter x length (mm): 88.5 x 111.6\nWeight (g): 640\nMagnification – Extension Tube EF12 II: 0.62-0.36¹\nMagnification – Extension Tube EF25 II: 1.11-0.80¹","domain":"optical_engineering"}
{"url":"http://www.howdotelescopeswork.com/Building-a-telescope.php","date":"2017-04-25T06:42:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120187.95/warc/CC-MAIN-20170423031200-00523-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9441864490509033,"token_count":524,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__216972876","lang":"en","text":"Telescope basics, reviews, accessories, and more!\nMany people are eager to make telescopes\nat home and it is definitely possible. While learning how to make a telescope,\none must know what is desired before actually starting the construction.\nThat is, one must know if it is desired to compete with the ones available in the market for sale or whether it is just for the purpose of creating a simple one and showing off proudly.\nA telescope is basically a device used to make distant objects appear closer. To do so, the telescope has a component, which is known as the objective lens or primary mirror that collects the light reflected from the distant objects and places the image to the focal point where the second component, that is, the eyepiece, enlarges the image and presents it to the user of the telescope.\nThe requirements for building a telescope using simple materials has been listed below:\nTo begin with, the bigger magnifying glass must be placed between the\neye and the paper. The print would appear blurred. Now, the smaller glass\nmay be placed between the eye and the larger glass.\nThe position of the second glass may be adjusted so as to bring the print to the focal point. When the print is at the focus, it would appear larger and inverted.\nThereafter, the assistance of another person would be required. The distance between both the magnifying glasses must be noted. A slot in the cardboard tube must be cut near the front opening at a distance of an inch away from it. The slot must be in a position to hold the large glass.\nAt the same distance from the first slot, another slot must be cut in the tube. The second slot must be able to support the second magnifying glass. The glasses may be placed in their respective slots.\nThe big one must be placed at the front and the smaller one at the back.\nThey must be taped using the duct tape. A distance of ½ to 1 inch\nof tube behind the small glass must be left and any excess tube remaining\nmay be cut off.\nThe arrangement of the components of the telescope might be checked by reading the printed page used earlier.\nA slight rearrangement may also be done thereafter to get the perfect distance between the two glasses so as to bring the image to the focal point. This is how a simple telescope is made.\nIf you have the knowledge of the important elements of a telescope then building a telescope at your own home is not that difficult. Even if you are a beginner, you can yet give an effort.","domain":"optical_engineering"}
{"url":"https://boozmanhof.com/lasik-center/what-does-lasek-correct/","date":"2021-04-10T19:44:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038057476.6/warc/CC-MAIN-20210410181215-20210410211215-00599.warc.gz","language_score":0.9055420756340027,"token_count":450,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__255102312","lang":"en","text":"What Does LASEK Correct?\nRefractive errors are irregularities in the corneal shape that do not allow light to properly focus on the retina (the back of the eye). People with refractive errors typically have to wear glasses or contacts to correct blurry vision. LASEK vision correction actually changes the shape of the cornea by removing microscopic amounts of corneal tissue to create the ideal contour. The result is often 20/20 vision.*\nLASEK is used on patients who have:\n- Astigmatism: An oval-shaped cornea, rather than round, so images are scattered on the cornea, making it difficult to focus clearly at any distance. This condition can also be present with nearsightedness and farsightedness.\n- Nearsightedness: A steeply-curved cornea, a long eye, so images are focused in front of the retina, making distant objects appear blurry.\n- Farsightedness: A flattened cornea, a short eye, so images are focused behind the retina, making close-up objects appear blurry.\nMonovision LASEK for Presbyopia\nPresbyopia is a different vision condition that is not a refractive error. Instead, this is a common condition that develops in most people over age 40 where the eye lenses begin to stiffen and lose flexibility. The result is blurry up-close vision to read menus, Smart Phones and more. Reading glasses can provide clarity, but many people do not want to “show their age” by wearing these glasses.\nWhile traditional LASEK will not correct presbyopia, a technique called monovision LASEK can be performed to correct one eye for close-up vision while the other is left with distance vision.\nNot all patients with refractive errors are right for LASEK. The only way to know for sure is by scheduling a free LASEK Consultation with us so we can check your refractive error, corneal thickness, eye health and more to ensure you are a good candidate. Contact us today to schedule your appointment.\n*No doctor can guarantee 20/20 vision after LASEK.","domain":"optical_engineering"}
{"url":"https://magazinoo.info/japan-is-developing-8k-cameras-to-capture-images-of-mars-and-its-moons","date":"2021-06-25T13:55:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487630175.17/warc/CC-MAIN-20210625115905-20210625145905-00096.warc.gz","language_score":0.9361075162887573,"token_count":233,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__40717633","lang":"en","text":"Japan is developing 8K cameras to capture images of Mars and its moons\nThe Japan Aerospace Exploration Agency and Japan National Broadcasting Corporation (NHK) are developing 4K and 8K cameras with the goal of capturing images of Mars and its moons, Phobos and Deimos.\nThis will be through the next exploration mission that will be launched into space. It is expected that the spacecraft will be launched in 2024, Alian will arrive by 2025, and it will take a longer period for the return capsule to arrive.\nIt will regularly capture images of the red planet and send it to create a series of images with the rest of the originals stored on a recording device included inside the capsule that will eventually return to Earth loaded with the images captured by the camera.\nThe mission of the MMX spacecraft is not limited to capturing pictures only, but also it will descend to the surface of the Phobos moon and collect samples from it, and if that mission succeeds, it will be the first high-quality images taken of the planet Mars and its moons from close range through those cameras, and this provides humanity with an unprecedented view of the world. Outer.","domain":"optical_engineering"}
{"url":"https://www.fdst-patent.com/en/dr-niels-meiser","date":"2023-09-25T15:23:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233509023.57/warc/CC-MAIN-20230925151539-20230925181539-00437.warc.gz","language_score":0.8903051614761353,"token_count":246,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__301896173","lang":"en","text":"Dr. Niels Meiser\n- Dipl.-Phys. (graduate physicist)\n- Patent Attorney\n- European Patent-, Trademark and Design Attorney\nBorn in 1984, he studied physics at the Leibniz University Hannover, Germany (main fields of study: Optics, Photonics, Biophysics). He received his PhD from the KTH Stockholm, Institute of Applied Physics, Sweden (main fields of interest: mode-locked solid-state lasers, nonlinear optics, semiconductor saturable absorbers). He joined FDST in 2013 and has been working as a patent attorney since 2017.\nMain Fields of Activity\nProsecution of national, European and international patents and utility models.\nRefrigeration and climatisation technology, optics, laser technology, automotive engineering, advanced driver assistance systems, electric conductor and cable engineering, machining, medical engineering (imaging methods, diagnostic apparatuses), power plant technology (fluid mechanics, power engineering), optics, laser technology, sensor technology, mechanics.\nProfessional language proficiency","domain":"optical_engineering"}
{"url":"http://www.classbop.com/en/ArticleShow.asp?ArticleID=16","date":"2023-03-31T03:36:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949533.16/warc/CC-MAIN-20230331020535-20230331050535-00714.warc.gz","language_score":0.6572825908660889,"token_count":279,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__189027657","lang":"en","text":"Voltage: 100-250V, 50 / 60HZ\nPower consumption: 600W\nLight bulb: 350W Taiwan excellent light bulb\nChannel mode: 16/24 international standard DMX512 channel chip switch\nColor plate: 13 color light + white, with two-way rotating rainbow effect, half-color and full color to go mode\nPattern: 9 rotating patterns, 15 fixed patterns\nHorizontal scanning: 540 degrees (160bit precision scanning) electronic error correction.\nVertical scanning: 270 degrees (160bit precision scanning) electronic error correction.\nPrism: double prism (8 prism plus row of mirrors)\nScan: horizontal scanning 540 °, vertical scanning 270 °, 16bit precision scanning °, electronic error correction\nOptical lens: 3-in-1 high-precision optical lens\nFocus: electronic focus dimming: 0-100% linear\nDimming: 0% to 100% linear dimming\nAtomization: 0% to 100% linear atomization\nStroboscopic: double-side knife frequency can be up to the second per second, and can be selected first random strobe and pulse strobe.\nDisplay: Color touch screen\nRectifier: electronic rectifier attack it or the traditional rectifier (can be first)\nSize: 320 * 290 * 640mm (length, width and height)","domain":"optical_engineering"}
{"url":"https://www.ntc.zcu.cz/en/Research/Research_topics/index.htmlInfrared_Technologies.html","date":"2024-02-29T12:11:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474808.39/warc/CC-MAIN-20240229103115-20240229133115-00375.warc.gz","language_score":0.8667932748794556,"token_count":1193,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__47299142","lang":"en","text":"INFRARED TECHNOLOGIES (IR)\nWHAT ARE WE DEALING WITH?\nWe use infrared radiation and its interaction with the material. We create new measuring methods and instruments that allow the contactless, fast and non-destructive analysis of thermal processes and materials. We focus on:\n- applications for the analysis of optical-thermal properties of surfaces, coatings and bulk materials\n- applications for optimization, monitoring and control of heating and cooling technologies in science and industry\n- applications for non-contact diagnostics of thermal processes in the industry, healthcare, and the environment, so-called thermodiagnostics\n- applications for non-destructive testing or marking of materials and products\n- measuring systems - cameras, detectors, spectrometers ...\n- radiation sources - lasers, lamps, emitters ...\n- methods for the analysis of material properties - SNEHT, EDEHT, ... microscopes\n- application laboratory infrastructure\nThe offer of IR team\n- Measurement of Photothermal Properties of Materials\nMeasurement of properties characterizing heat transfer by infrared radiation, such as emissivity, reflectivity, transmissivity, and absorptivity.\n- Measurement of Technological Thermal Processes\nMeasuring temperatures and heat fluxes to optimize, monitor, and control heating and/or cooling technologies.\n- Thermodiagnostics of Equipment, People, and the Environment\nNon-contact detection of non-standard conditions in industrial equipment, people, or the environment using thermal processes.\n- Thermographic Testing of Materials\nNon-destructive detection of inhomogeneities beneath the material surface using thermal excitation and measurement of the material surface temperature.\n- Examples of our services:\ndevelopment of a measuring system in heat furnaces of ironworks; measurement of absorption and emissivity of interior materials resources; measuring the functionality of glass coatings and assessing new materials in construction; measuring the emissivity of roads, measuring the emissivity of parts of machines, products, buildings; creation of inspection systems of production lines and assessment of their industrial usability; laser surface texturing, micro-drilling, cutting, engraving and marking; laser cleaning and layer removal; material wear measurement… Advice and training on measuring the temperature of people using thermal imagers\naerospace and automotive (measurement and inspection), mechanical, metallurgical and construction industries (measurement and inspection, optical components, laser technologies), energy and healthcare (photovoltaics, personal temperature measurement)\nYou can find more information here.\nRegarding contract research, we have cooperated with a number of companies, for example, with AP Racing we have cooperated on the measurement of brake systems, for the company Bombardier we have provided contact and non-contact temperature measurement during technological processes. For Safran, we measured the thermo-physical properties of materials, for Continental we provided laser welding of plastics with thermal imaging control and laser drilling of nozzles. We supplied Volkswagen with some material analysis and measured the thermo-physical properties of the materials. Software for connecting LabIR THERMOSTITCH thermograms was delivered to Unipetrol…\nCurrent selected projects - IR Technology\n2023 – 2025 NAKOMIR – National Contact Point for Infrared Technologies for International Security Research (MVČR / IMPAKT 1)\n2023 – 2025 MEDEPOZ – Methodology for rapid non-contact and non-destructive detection of gunshot emissions (MVČR / OPSEC)\n2022 – 2024 Laser-assisted consolidation of fiber-reinforced thermoplastics (MŠMT ČR / INTER-ACTION-LUABA22)\nOlder selected projects - IR technology\nSecurity research for effective use of IR cameras in case of epidemic threats and crisis situations - „BETERKA“ - Ministry of the Interior of the Czech Republic - 1.1.2021- 31.12.2022, project number: VI04000029\nThe project is focused on the research of thermodiagnostic methods using IR cameras as tools for contactless and rapid identification of people with higher temperature and at the same time tools for effective security of the state and its citizens and crisis management and epidemic threats. The project, therefore, includes research into new and more reliable solutions for identifying people with higher body temperatures and research into epidemics. The project also includes dissemination activities towards individual components of the IRS, participants in command and crisis management, as well as manufacturers of thermal imaging systems and others.\nPre-application research of infrared technologies (LabIR-PAV) - Ministry of Education, Youth and Sports in the program \"Operational Program Research, Development and Education\" in the call \"Pre-application research for ITI II\", 1.7.2018 - 31.12.2022, project number: CZ.02.1.01 / 0.0 /0.0/18_069/0010018\nPre-application research in the field of photonics focusing on widely applicable measurement methods based on physical processes in the field of infrared radiation. With the intentions of Industry 4.0, the research plan represents a potential innovative solution for intelligent laser production machines and predictive thermodiagnostic maintenance.\nNon-Contact NDI for Polymer Composite Structures - ESA / ESAC - European Space Agency - January 2020 - June 2021, project number: AO / 1-9843 / 19 / NL / GLC\nThe main objective of this activity is the development/demonstration of the applicability of contactless methods in non-destructive inspection within defined reliability; in order to detect defects/damage of fiber-reinforced composite structural parts, in the assembly and without the need for dismantling.","domain":"optical_engineering"}
{"url":"https://sawninja.com/how-does-a-laser-level-work/","date":"2024-04-13T03:33:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816535.76/warc/CC-MAIN-20240413021024-20240413051024-00055.warc.gz","language_score":0.903728187084198,"token_count":1205,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__95059862","lang":"en","text":"Did you know that a laser level is an instrument that uses lasers to indicate the level or slope of a surface? Laser levels are often used by contractors, carpenters, and masons to ensure that their work is level. In this blog post, we will discuss how a laser level works and some of the different applications that they can be used for. Stay tuned!\nHow Does a Laser Level Work?\nA laser level is a tool that uses a laser beam to create a horizontal or vertical line of light, used as a reference point for measurements. The laser level projects a laser beam in a very straight line and is used to help ensure that objects are level or plumb.\nLaser levels are used in construction and many other applications. They are especially useful for long, level, or plumb lines that would be difficult to measure with a tape measure.\nTypes of laser levels\nThere are two main types of laser levels:\n- Line lasers\n- Point lasers\nLine lasers project a laser beam in a very straight line horizontally, vertically, or at an angle. These types of laser levels are used for long, level, or plumb lines.\nPoint lasers project a dot of laser light instead of a line. These types of laser levels are used for short, level, or plumb lines.\nA laser level is an instrument that projects a laser beam in a horizontal or vertical plane. The light emitted by the laser level is very bright and can be seen over long distances. The beam is used as a reference line for levelling or aligning objects.\nHow It Works\nThe laser level emits a laser beam that is reflected off of a mirror. The mirror is attached to a rotating platform. As the platform rotates, the laser beam sweeps across the surface of the object. The laser level can be used to create a horizontal or vertical line.\nThe horizontal plane is created by rotating the platform so that the laser beam sweeps in a horizontal line. The vertical plane is created by rotating the platform so that the laser beam sweeps in a vertical line.\nThe laser level can be used to align objects in a room or to create a level surface. It can also be used to measure distance. A laser level is a versatile tool that can be used in a variety of applications.\nSize and price\nLaser levels are available in a variety of sizes and prices. Some laser levels are small enough to fit in your pocket, while others are larger and more expensive. The size and price of the laser level will depend on the features and the quality of the level.\nLaser Levelling Mechanisms\nThere are two main types of lasers leveling mechanisms,\nRotary laser levels emit a beam that rotates around a horizontal or vertical axis. The beam sweeps across the surface of the object, creating a level line.\nLinear laser levels emit a stationary beam. The beam is attached to a fixed platform. The laser level can be used to create a horizontal or vertical line.\nLaser levels can be used in a variety of applications. Some of the most common applications include:\nConstruction – Laser levels are used to create level foundations, align walls, and install windows and doors.\nHome Improvement – Laser levels can be used to hang pictures, install shelves, and align appliances.\nLandscaping – Laser levels can be used to create level patios, install fences, and build retaining walls.\nHow does a self-leveling laser work?\nA self-leveling laser is a level that has a mechanism that automatically adjusts the laser beam to create a level line. The mechanism is usually activated by a button or a switch.\nHow do I choose a laser level?\nThe type of laser level you choose will depend on the application. For example, if you are going to be using the level for construction, you will need a different type of level than if you are going to be using it for home improvement.\nAre laser levels accurate?\nYes, laser levels are very accurate. The accuracy of the level will depend on the quality of the level.\nWhat should you not do with a laser level?\nYou should never look directly into the laser beam. The light from the laser can damage your eyes. You should also avoid pointing the laser at people or animals.\nWhat is an advantage of a laser level?\nA laser level is more accurate than a traditional level. The laser beam can be seen over long distances, making it easier to align objects.\nWhich is better red or green laser level?\nThere is no definitive answer. Some people prefer red laser levels because the beam is easier to see. Other people prefer green laser levels because they are more visible in daylight.\nWhat is the range of a laser level?\nThe range of a laser level is the distance that the beam can travel without being obstructed. The range will depend on the power of the level. Some laser levels have a range of up to 100 feet (30 meters).\nCan a laser level be used indoors?\nYes, laser levels can be used indoors. However, you should avoid using the level near windows or other sources of light. The light from the laser can reflect off of these surfaces and create a glare.\nA laser level is a great tool to have in your arsenal for any number of reasons. Whether you’re a contractor trying to hang drywall or put up trim, or you’re a DIY enthusiast working on a home improvement project, a laser level can make the process go much more smoothly.\nIn this post, we’ve answered some of the most common questions about how laser levels work. We hope this information helps you decide if a laser level is a right tool for your next project!","domain":"optical_engineering"}
{"url":"https://display-lcd.com/","date":"2024-04-17T20:29:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817171.53/warc/CC-MAIN-20240417173445-20240417203445-00174.warc.gz","language_score":0.8924115300178528,"token_count":372,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__170975559","lang":"en","text":"We design and manufacture high-quality displays for customers worldwide. Our products include LCD,COG,TFT, IPS,OLED, E-Paper, and display accessories. Serving clients globally, we're committed to transforming visions into reality with our comprehensive display solutions.\nHotDisplay is a leading Chinese manufacturer of displays and a global supplier with over 20 years of experience in the digital display industry. Renowned for providing high-quality products, excellent services, and customized design solutions, we have earned the trust of customers worldwide. With a portfolio of over 1000 products and collaborations with more than 2000 partners, we boast extensive design and manufacturing expertise. Our commitment to quality control and state-of-the-art automated production lines ensures our capability to deliver innovative and reliable display solutions.\nAs a trusted LCD display manufacturer, designer and supplier, HOTDISPLAY Technology Co., Ltd. has been serving many industries since 2004. We produce TFT color screens, serial screens, smart screens, LCD modules, COG modules, HDMI driver-free modules, IPS full viewing angle, high-brightness industrial screens, OLED LCD screens, OLED module screens, segment code LCD screens, PCAP modules Group, sensor touch screen, customized industrial screen, resistive screen, capacitive screen.\nIf you're familiar with displays, from laptops to digital watches, you've likely come across LCDs, short for liquid crystal display. LCD screens and LCD technology have grown in prominence over the paLearn More >>\nOLED (Organic Light Emitting Diode) is an organic light-emitting diode technology used to create flat light sources.Learn More >>\nWith the increasing attention paid by consumers to eye health, people are increasingly pursuing a display screen that has low damage to the eyes. Hongtai Technology has a strong research and developmeLearn More >>","domain":"optical_engineering"}
{"url":"https://www.nova-scientia.org/en-ww/introduction.aspx","date":"2021-07-24T23:45:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151531.67/warc/CC-MAIN-20210724223025-20210725013025-00558.warc.gz","language_score":0.8784707188606262,"token_count":109,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__141288589","lang":"en","text":"NOVA technology is based on Fibre Segment Interferometry (FSI)\nPartially reflecting elements are integrated into the sensing fibres. The distance between two consecutive reflective elements is a segment. The segment length L (from 10 mm to tens of meters) defines the spatial resolution.\nStrain (∆L) or a temperature difference (ΔT) applied to a segment induces a phase change to the light carrier signal for each reflector. From the measurable phase change, it is possible to quantify the deformation.","domain":"optical_engineering"}
{"url":"https://tachilab.org/jp/projects/20.html","date":"2022-06-28T00:08:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103344783.24/warc/CC-MAIN-20220627225823-20220628015823-00572.warc.gz","language_score":0.9086788892745972,"token_count":3576,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__43548367","lang":"en","text":"[ Summary | DETAILS | CONCLUSION | References ]\n本研究の目的は、乗り物において死角領域を透視表示する視野外情報提示システムの構築である。ディスプレイ方式として再帰性反射材にプロジェクタで映像を投影する再帰性投影技術（RPT: Retro-reflective Projection Technology）を用いることで、乗り物の内壁部分に視野内情報と連続的に明るさや大きさなどの違和感なく視野外情報を提示できる。すなわち、乗り物の床、ドア、ピラーといった内壁部分に再帰性反射材を貼り、車外カメラで得た視野外情報を再帰性投影することで、内壁部分があたかも透明な窓であるかのような状況を実現できる。自動車はもとよりヘリコプターにこの機能を搭載すれば、床部分に提示された地面を見ながら安全に離着陸を行うことも可能となる。\nThe experience of driving a car would be quite different and attractive if the car was to be transparent, as if it was made of glass. In such a scenario, you would not only enjoy a 360° view around you through the windows but also a view through the body of the car that would give you the impression of flying a few feet above the road surface. Such a Transparent Cockpit would be far safer and far more enjoyable than the cockpit that is currently available in cars, which affords a fairly restricted view of what lies ahead and an even more restricted view of what lies behind.\nFor the purpose of safety and increased operability, it is important to obtain a wide field of view while driving a car. However, cars typically feature limited space for glass windows. In this light, the concept of a Transparent Cockpit, in which an image of an object that is currently located in a blind spot is displayed on the inner wall of the car as if it is transparent, is quite attractive. In this system, internal components of the car, such as the doors, backseats, and floor, are virtually transparent. This completely eliminates blind spots, and objects that would otherwise be occluded by structural elements are observed as if through a window.\nA Transparent Cockpit can be used not only in passenger cars but also in other vehicles such as helicopters or airplanes, the floor of which if made virtually transparent can aid the pilot in landing more easily (Fig.1).\nFig.1 Conceptual Images of Transparent Cockpit: Ideal (above) and Near Future (below).\nIn a car with a Transparent Cockpit, all internal components such as doors and seats must be virtually transparent, i.e., the driver must be able to see the outside environment as if these components are not there at all. The scenery through the internal components must be seamlessly connected to that viewed through the windows of the car.\nThe Transparent Cockpit system consists of an external camera system and an internal display system. Cameras are placed all around the vehicle to capture images of the surroundings. These images are processed as if they are viewed from the driver’s viewpoint and displayed on the internal components of the car.\nTwo types of display systems can be considered. One is an autostereoscopic display made of LCDs, LEDs, or OLEDs that is installed on the internal components of the car. However, it is currently very difficult to fabricate such displays to fit the varied shapes of dashboards, window pillars, doors, floor, and seats. In particular, seats are usually made of fabrics and are therefore unsuitable for installing fixed-type visual displays. Thus, the use of autostereoscopic displays made of OLEDs, while quite promising, is currently infeasible.\nThe other is a system using projectors. In this case, the internal components need only serve as screens—either by having a screen placed on them or by being made of a material that can be used as a screen—which is much easier to implement. Therefore, the use of projection technology is currently not only promising but also much more feasible.\nHowever, several problems need to be solved for projectors to be used for displaying the outside environment using conventional projection technology.\n(1) Brightness of the projected image is not sufficiently high to match that of the scenery observed through windows, especially in the daytime.\n(2) When an image is projected on a complex-shaped screen such as dashboards or seats, it will be distorted, thus necessitating distortion correction.\n(3) Special eyewear such as shutter glasses is necessary to observe stereo 3D images, without which the outside scenery would be observed as if on a screen.\n(4) Projection of multiple images on the same screen is not possible, thus preventing multiple users from seeing their own scenery according to their viewpoint.\nThese problems of conventional projection technology can be solved by using Retroreflective Projection Technology (RPT). RPT makes it possible to transform any physical object into a virtual object simply by covering its surface with a retroreflective material.\nIn an RPT configuration, a projector is placed at the axial symmetric position of the user’s eyes, with a half-mirror used as a reference, and a pinhole is placed in front of the projector to ensure adequate depth of field, as shown in Figure 2. This condition is referred to as the “conjugate optical condition,” which is the principle of RPT. Images are projected onto a screen that is constructed, painted, or covered with a retroreflective material.\nFig. 2 Principle of RPT system.\nConventional screens scatter projected light equally in all directions, as in the case of a Lambertian surface. In contrast, retroreflective surfaces reflect projected light only in the direction of projection (Fig. 3).\nFig. 3 Three typical reflection patterns.\nFigure 4 shows how a retroreflective surface behaves. The retroreflective surface is covered with microscopic beads of 50-µm diameter that reflect incident light back along the direction of incidence. This effect can also be achieved by using the microstructure of prism-shaped retroreflectors that are densely distributed on the surface.\nFig. 4 Retroreflective surface densely covered with microscopic beads of 50-µm diameter. Ideally, the refractive index should be 2.\nRPT easily solves the four abovementioned problems of conventional projection technology as follows:\n(1) In RPT, the brightness of the projected image is sufficiently high to match that of the scenery observed through windows.\nThe reflection brightness of a retroreflective material is roughly 500 cd/lux/m2. Multiplying this value by 0.25 to account for the reduction caused by using two half mirrors gives a final reflection brightness of 125 cd/lux/m2. In contrast, the reflection brightness of a white Lambertian screen is at most 1 cd/lux/m2. In other words, RPT is at least 100 times brighter than projection using normal screens.\n(2) Even when an image is projected on a complex-shaped screen such as dashboards or seats, it is not distorted, making distortion correction unnecessary.\nThe combination of the retroreflector screen and the pinhole ensures that the user always sees images with accurate occlusion relations. In RPT systems, arbitrary screen shapes can be used owing to the characteristics of retroreflectors and the presence of a pinhole in the conjugate optical system. A good example of this characteristics of RPT is an “Optical Camouflage.” Figure 5 shows how an “Optical Camouflage” can be achieved by using RPT. Here, the coat is made of a retroreflective material that reflects light back along the direction of incidence. The retroreflection functionality is provided by microscopic beads on the surface of the coat, as explained previously. A half mirror allows observers to see virtually from the position of the projector. A head-mounted projector (HMP) projects an image of the background scenery captured by the video camera behind the camouflaged person. A computer uses image-based rendering techniques to calculate the appropriate perspective and to transform the captured image into the image to be projected onto the subject. Because the user is wearing a cloak made of a retroreflective material, which reflects incident light along the direction of incidence, an observer looking through a half mirror sees a very bright image of the scenery behind the user wearing the camouflage material, as if he or she is virtually transparent.\nFig. 5 Optical camouflage using RTP.\n(3) Special eyewear such as shutter glasses is not necessary to observe stereo 3D images, and the observer can view the outside scenery at natural distances.\nThe above-described characteristics of RPT systems can be exploited to realize binocular stereovision using only one screen with an arbitrary shape. Figure 2 also shows how stereovision can be realized by using RTP. Here, the screen has an arbitrary shape covered or painted with a retroreflective material. The light projected by the right and left projectors is retroreflected from the surface of the same screen and is respectively observed by the right and left eyes. Thus, a stereoscopic view can be obtained using only one screen.\n(4) Projection of multiple images on the same screen is possible, thus allowing multiple users to see their own scenery according to their viewpoints.\nRPT can be used to project multiple images on the same screen; therefore, multiple users can project their own images onto the screen, and the users can view their own images independently.\nThe same technology can also be used to realize an autostereoscopic system with multiple viewpoints. Figure 6 shows the basic principle of the proposed RPT-based 3D display method. When images from a projector array are projected onto a retroreflector, light is strongly reflected along the direction of each projection lens. An identical number of viewpoints are created on either side of the axis of symmetry of the half mirror.\nFig. 6 Basic principle of 3D display consisting of a projector array and a retroreflector.\nWhen a large number of projectors are arranged in a matrix, a 3D image can be viewed from multiple viewpoints. To realize smooth motion parallax, the density of projectors in the projector array must be sufficiently high. However, with commercially available projectors, it is difficult to form a projector array in which projectors are located very close to each other. One of the reasons for this is that the distance between adjacent viewpoints is limited by the size of each projector. In addition, the system scale would increase, and because of the large number of video outputs, the system cost would also increase. Therefore, a high-density projector array has been developed by arranging a number of virtual projection lenses by using a single projector and a lens array. The distance between viewpoints depends on the size of the lens array. A single video output is produced, and the cost involved is lower than that of using many individual projectors.\nFigure 7 shows the optical system consisting of a high-density projector array. The system consists of a projector, a field lens, a lens array, a half mirror, and a retroreflective screen. Projected light from the projection source forms an image on the field lens. The lenses of the lens array are located at an appropriate distance so that their projected areas overlap. Each lens of the lens array works as a single projection lens. As a result, the number of lenses in the lens array is equivalent to the number of projection sources and, in turn, the number of viewpoints. Thus, the system shown in Fig. 6 is realized using a single projector in the system shown in Fig. 7.\nFig. 7 Multiple viewpoint system for retroreflective projection technology.\nImplementation in an actual car:\nTo demonstrate the effectiveness of our proposed system, a test run was carried out in which the basic system was implemented in an actual car. A retroreflector was applied to the passenger’s door and to the dashboard. In this experiment, only one camera was used and image correction based on the camera-to-subject distance was not performed. The position of the HMP was fixed and it was not worn by the operator.\nFigure 8 shows the experimental result. As shown in the figure, the internal components of the car are virtually transparent, and blind spots are clearly visible. Furthermore, the displayed image was sufficiently bright in the daytime. This result qualitatively demonstrates the effectiveness of the RPT system.\nFig. 8 Test run with Transparent Cockpit using RTP.\nImplementation in Toyota Prius:\nTo explore the practical use of the proposed system, a setup was specifically built to fit within a Toyota Prius. The aim was to make the backseat virtually transparent, allowing the driver to see otherwise blind spots at the rear when reversing the car (Figure 9). In this application, the system had six viewpoints.\nFig. 9 (Above) The driver was able to see images (Bottom) that were captured by the cameras behind the car.\nA Transparent Cockpit can change our experience of driving a car or of traveling in other means of transportation such as trains and airplanes. A Transport Cockpit aims to convey the feeling of “floating” in the vehicle as opposed to riding it. As such, a Transparent Cockpit is a type of augmented reality application, which can be used to enhance our ability to perceive the world around us.\n[Tachi, 1999] Susumu Tachi: Augmented Telexistence, in Y. Ohta and H. Tamura (eds.), Mixed Reality - Merging Real and Virtual Worlds, Springer-Verlag, ISBN3-540-65623-5, pp. 251-260, 1999.\n[Inami et al., 2000] Masahiko Inami, Naoki Kawakami, Dairoku Sekiguchi, Yasuyuki Yanagida, Taro Maeda, and Susumu Tachi: Visuo-Haptic Display Using Head-Mounted Projector, Proceedings of IEEE Virtual Reality 2000, New Brunswick, New Jersey, USA, pp. 233-240 (2000.3) [PDF]\n[Tachi, 2003] Susumu Tachi: Telexistence and Retro-reflective Projection Technology (RPT), Proceedings of the 5th Virtual Reality Internationl Conference (VRIC2003), pp. 69/1-69/9, Laval Virtual, France (2003.5) (Invited Keynote Paper) [PDF]\n[Yoshida et al., 2007] Takumi Yoshida, Kouta Minamizawa, Kensei Jo, Hideaki Nii, Naoki Kawakami and Susumu Tachi: Transparent Cockpit, 34th Int. Conf. On Computer Graphics and Interactive Techniques (ACM SIGGRAPH 2007), Emerging Technologies, San Diego, USA (2007.8) [PDF]\n[Yoshida et al., 2013] Takumi Yoshida, Keitaro Shimizu, Tadatoshi Kurogi, Sho Kamuro, Kouta Minamizawa, Hideaki Nii and Susumu Tachi: RePro3D: Full-parallax 3D Display with Haptic Feedback using Retro-reflective Projection Technology, Proceedings of International Symposium on Virtual Reality Innovations (ISVRI 2011), Singapore, pp.49-54 (2011. 3) [PDF]\n[Tachi et al., 2014] Susumu Tachi, Masahiko Inami and Yuji Uema: The Transparent Cockpit, IEEE Spectrum, vol.51, no.11, pp.52-56 (2014.11).","domain":"optical_engineering"}
{"url":"https://www.utilitiestechoutlook.com/news/how-this-ul-listed-led-driver-revitalizes-lighting-applications-nwid-497.html","date":"2021-09-25T02:38:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057589.14/warc/CC-MAIN-20210925021713-20210925051713-00455.warc.gz","language_score":0.9459692239761353,"token_count":523,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__9934721","lang":"en","text":"A new UL listed full-capacity LED power supply is set to transform an array of industries, rightly catering to their needs.\nFREMONT, CA: Environmental Lights, a pioneer in LED lighting solutions, has launched MicroMax VLB LED Driver. The launched product is a new, UL Listed, full-capacity LED power supply designed for low-voltage lighting applications. It offers up to 260 watts of 12 or 24 VDC power, ideal for a variety of commercial LED lighting applications. To ensure efficient operation, MicroMax VLB LED Driver supports advanced features, possessing a gilled design for effective heat dissipation. It can accept 120 or 277 VAC, suitable for use in more extensive facilities with commercial voltage. The life of LEDs and how they perform depends entirely on how users power them.\nThe newly launched product stands out from other LED power supplies as it is UL Listed, reticent, and has a space-saving footprint. Environmental Lights is thrilled about MicroMax VLB LED Drivers as they provide UL Listed low-voltage power solution that is quiet, compact and powerful. Being highly efficient and affordable, Micro Max VLB LED Driver has extraordinary features including full capacity, IP66 rating, small footprint, UL listed, multiple output wires, and efficient heat dissipation. It also accepts 120 or 277 VAC with a five-year warranty. Environmental Lights exclusively sells MicroMax VLB LED Drivers with the company sales engineers available to assist customers with project specifications, prototypes, and quotes. Environmental Lights offers a wide selection of LED drivers and adapters that have been designed and rigorously examined to ensure quality. Its power supplies are engineered to prolong the life of the LED lighting.\nEnvironmental Lights is a California-based consumer goods solution provider of LED lights. The company has transformed environments with LED lighting technology by engineering its clients' visions into innovative solutions. Environmental Lights partners with its customers from project inception, through planning, installation, and specification of their LED lighting systems. It has been solving lighting difficulties by transforming environments in an extensive range of industries, working with everyone from large fixture businesses, retail brands, and designers to lighting electricians, architects, and homeowners.\nEnvironmental Lights has also built out an extended library of sources to help clients with the quickly-evolving LED lighting technology and its expanding line of products. Engineering is the lifeblood of Environmental Lights, working tirelessly to ensure that it creates a dependable lighting system that scales organizational needs. Understanding that each project has unique specifications, Environmental Lights offers built-to-order LED lighting options that fit custom project needs.","domain":"optical_engineering"}
{"url":"https://xn--15-jlcyz.xn--p1ai/environment/introduction-to-fiber-optics-ajoy-ghatak.php","date":"2022-07-06T16:48:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104675818.94/warc/CC-MAIN-20220706151618-20220706181618-00376.warc.gz","language_score":0.7035746574401855,"token_count":464,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__40414330","lang":"en","text":"Dulkree Open to the public. These 2 locations in Australian Capital Territory: View online Borrow Buy Freely available Show 0 more links Help us improve our Author Pages by updating your bibliography and submitting a new or current image and biography. Login to add to list. Optics Contents Includes index.\n|Published (Last):||22 April 2013|\n|PDF File Size:||6.49 Mb|\n|ePub File Size:||11.14 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nIntroduction; 2. Basic optics; 3. The optical fiber; 4. Ray analysis of planar optical waveguide; 5. Graded index optical fibers; 6. Material dispersion; 7. Planar waveguides; 8. Characteristics of a step-index fiber; 9. Graded Index fibers; Waveguide dispersion and design considerations; Sources for optical fiber communication; Detectors for optical fiber and communication; Fiber optic communication system design; Optical fiber Amplifiers; Dispersion compensation and chirping phenomenon; Optical solitons; Single-mode fiber optic components; Single mode optical fiber sensors; Measurement methods in optical fiber: I; Measurement methods in optical fibers: II; Periodic interactions in waveguides; Ray equation in Cartesian coordinates; Ray paths; Leaky modes.\nEditorial Reviews \"This is a truly comprehensive, timely text for in-depth studies of communication via fiber optics The text clearly elucidates all the intricate topics with step-by-step, easy-to-follow mathematical analysis. The authors make it surprisingly easy for the reader to grasp the underlying physical concepts together with the mathematical model. Its thoroughness, breadth, and clarity of presentation will attract a large audience.\nAn Introduction to Fiber Optics","domain":"optical_engineering"}
{"url":"https://www.worldrecordacademy.com/technology/most_efficient_single_junction_solar_cell-Quantasol_sets_world_record_90269.htm","date":"2018-01-23T08:09:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084891791.95/warc/CC-MAIN-20180123072105-20180123092105-00731.warc.gz","language_score":0.9121845960617065,"token_count":957,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__24047339","lang":"en","text":"Saturday, July 4, 2009\nMost efficient single junction solar cell-QuantaSol\nsets world record\nLONDON, UK-- Quantasol\nLtd has developed in just two years a single-junction\ncell achieving 28.3% efficiency at greater than 500 suns-setting\nthe world record for the most\nefficient single junction solar cell.\nPhoto:Quantasol has come up with\na new solar cell design that can be tuned to the light at\na particular latitude, and in the process broken a 21-year-old\nefficiency record for one type of solar cell.\nIts cell had been independently assessed\nby solar research body Fraunhofer ISE and was found to deliver\na 28.3 per cent efficiency at a solar concentration of greater\nthan 500 suns.\nA new generation of 'nano-structured'\nmillimetre-sized solar cells that could convert the sun's\nenergy to electricity more than twice as efficiently as current\ntechnology,can be tuned to the prevailing light conditions\nof a particular place, to get the most out of the cells wherever\nnew scientific invention is the subject of an Imperial College\nLondon exhibit called 'A Quantum of Sol' at the Royal Society\nSummer Science Exhibition 2009.\n“Our technology is the industry’s best\nkept secret. This is the first time that anyone has successfully\ncombined high efficiency with ease of manufacture, historically\na bug-bear of the solar cell industry,” said Kevin Arthur,\nCEO. “We’re now gearing up to provide multi-junction cells\nof even higher efficiencies as early as Q1 2010.”\nThe 'Quantum of Sol' exhibit explains\nthe technology behind so-called 'third generation' solar cells.\nThese are designed on the nano-scale, which means the materials\nthey are made of are custom-built on a scale 1000 times smaller\nthan the size of a human hair.\nThese third generation solar cells can\ncapture more of the sun's energy than existing silicon solar\npanels because they contain different layers of material that\nabsorb a broader spectrum of colours. Individually targeting\ndifferent colours of sunlight in this way captures more of\nthe sun's energy, creating much more efficient solar cells.\nSilicon solar panels, which have been around\nsince the 1950s and are relatively cheap to produce, lose\na lot of the sun's energy, and tend to operate with just 12\n- 20% efficiency.\nThe new generation of so-called 'multi- junction'\nsolar cells has the potential to perform much better, with\nthe current world record for efficiency standing at 41%, and\nDr Ekins-Daukes predicting that 50% efficiency will be achieved\nwithin a decade.\nCommercial silicon solar cells are much\ncheaper than GaAs, but have an efficiency of just 10 to 12\nper cent and are also bulkier. The Quantasol device can cope\nwith much brighter light without becoming overloaded, making\nit possible to use a very small solar cell to absorb light\ncollected by a system of cheap lenses and mirrors.\nBut more important than the peak efficiency\nis that the new cells can generate more electrical energy\nover the course of days and weeks, says Kevin Arthur, Quantasol\n\"The commercial market doesn't just want high\nefficiency, they want the device to be optimised to the environment,\"\nhe says. \"In the past we measured performance in dollars per\nwatt. Now it's cents per kilowatt-hour that's more important.\"\nRelated world records:\nefficient solar-to-grid convertor-world record set by SES\nadvanced home flight simulator-world record set by Matthew\nadvanced bicycle-world record set by Factor 001\nworking cell phone-world record set by Cricket\nZoetrope-world record set by the BRAVIA-drome from Sony\nHelicopter-world record set by GEN H-4\nmobile phone-world record set by Modu mini phone\nPC-world record set by Fi7EPOWER MLK1610\nprocessor-world record set by Intel Core i7\nsatelitte messenger-world record set by SPOT\nLite-Brite Picture-world record set by ASICS\ndurable phone-world record set by the Sonim XP1\nprinted digital image-world record set by Base3\nunmanned flight-Zephyr sets world record\nhumanoid robot-world record set by the BeRobot\nSaturday, July 4, 2009","domain":"optical_engineering"}
{"url":"https://www.evkirchegedern.de/machine/4723-plastic-colour-sorter-machine-in-georgia.html","date":"2022-09-28T03:05:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335059.43/warc/CC-MAIN-20220928020513-20220928050513-00397.warc.gz","language_score":0.7787682414054871,"token_count":1433,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__12744786","lang":"en","text":"plastic colour sorter machine in georgia\nPlastic color sorter, Plastic color sorter direct from Hefei.\nAngelon plastic chips color sorter plastic PP PET ABS PVC HDPE scraps color sorting machine plastic separation machine $48,000.00 - $72,000.00 / Set 1 Set (Min. Order)\nPlastic color sorter machine | Color Sorter Machine\nPlastic color sorting machine Rice color sorting machine Usually, separation takes place while the particles are in free fall; accept particles are allowed to continue along their normal trajectory, and rejects are deflected from it into a receptacle.\nPlastic colour sorter machine Manufacturers & Suppliers.\nplastic colour sorter machine manufacturer/supplier, China plastic colour sorter machine manufacturer & factory list, find qualified Chinese plastic colour sorter machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com.\nPlastic Color Sorting Machine factory, Buy good quality.\nBuy low priced Plastic Color Sorting Machine from Plastic Color Sorting Machine factory, We provide good quality Plastic Color Sorting Machine from China.\nplastic color sorting machine georgia - ANHUI HIGHTECH.\n[\"\\rWe are a qualified manufacturer specialized in developing, producing and marketing Plastic Color Sorting Machine. By our scientific design, excellent technology, fine product, thoughtful and perfect service, we wish to join hands with our customers, advance together and cooperate sincerely, so as to create a brilliant future.\nFull Automatic Color Sorter Machine Colour Separation Seed.\nThe color sorter is a new type of multi-purpose color sorter developed, produced and successfully introduced to the market by the color sorter industry for many years. It mainly provides a series of color sorting work of miscellaneous grain agricultural products such as soybean, corn, broad bean, peanut, coffee bean, pepper, chickpea and so on.\nplastic color sorting machine - alibaba.com\nBuy plastic color sorting machine to ease and minimize your day-to-day kitchen hassles. Well equipped plastic color sorting machine with alluring prices on Alibaba.com can hack down your burden.\nPlastic Color Sorter Machine\nIt provides optical sorting solutions for plastic processing and recycling industry who demand high standard of quality and purity.The plastic color sorting machines focus on precision sorting,maximizing capacity and yield and delivering the consistent performance. The color sorter machine is the best solution in the market for the sorter of.\nPlastic Color Sorter factory, Buy good quality Plastic Color.\nBuy low priced Plastic Color Sorter from Plastic Color Sorter factory, We provide good quality Plastic Color Sorter from China.\nAutomatic Plastic Color Sorter, Plastic Color Sorting Machine.\nPlastic sorting machines is used for all types of plastics and recycled plastics. With highly-end standards we offer plastic sorter system at best price Automatic Plastic Color Sorter, Plastic Color Sorting Machine Manufacturer Supplier, Plastic Sorting Equipment\nPlastic Color Sorter Machine Manufacturer Supplier in.\nPromech Industries Private Limited is a leading Manufacturer Exporter & Supplier of Plastic Color Sorter Machine in Coimbatore Tamil Nadu India, Exporter of Plastic Color Sorter Machine in Tamil Nadu, Wholesale Plastic Color Sorter Machine Supplier in Coimbatore, Plastic Color Sorter Machine Manufacturing Company in India.\nHigh Quality Plastic Color Sorting Machine Suppliers.\nAI MultiFunciton Wheat Color Sorter Machine. GROTECH Wheat Color Sorter Machine, RGB CCD Optical wheat Sorting Machine, 1-14 Chutes, 64-768 channels, which could be applied into flour wheat milling proccessing units for cleaning before packing, Capacity Range could cover 5-30 tones per hour bas1. Optical Intelligent High Precision Corn Sorting.\nThe latest optical sorters for recycling are fast, acccurate.\nPellenc ST's latest film sorting machine, Mistral Film Top Speed addresses one of the key requirements for LDPE recyclers - higher capacities. A standard optical sorter, without LDPE-specific features, can usually sort 1.5 tph input materials. According to Pellenc ST, the Mistral Film Top Speed is aimed at reaching capacities up to 4.5 tph.\nCustom-made Plastic color sorting machine - Haibao Machinery.\nPlastic color sorting machine,high quality industrial color sorter,sorting solution for plastic recycling and other Industries 86-\nPlastic Color Sorter Machine - Manufacturers, Suppliers & Dealers\nFind listing of plastic color sorter machine, plastic color sorter machine manufacturers, suppliers, dealers & exporters from India. Get plastic color sorter machine at best price from listed companies as per your buying requirements.\nplastic color sorter machine georgia - ANHUI HIGHTECH.\n[\"Our company is a world-famous manufacturer which is specializing in R&D, manufacturing and selling of Plastic Color Sorter Machine. Our group has our own import and export rights. In order to ensure the performance and quality of our Plastic Color Sorter Machine, we control all processes strictly, including processing, assembly and delivery.\nplastic color sorting machine - Alibaba.com\nPlastic Color Machine Colour 2020 Hot Products Plastic Color Sorter Machine Industrial Sorting/Grading PVC ABS Plastic Colour Sorter Machine $4,000.00-$9,000.00 / Set 1.0 Sets (Min. Order)\nPlastic Color Sorter Hefei - ECeurope Market\nPlastic color sorter for color sorting machine solutions any demand for color sorters, please write to the address of colorsorter.ben(at)hotmai l.com or just call 86521. 6sxg-441 6sxg756 6sxl-1200 schematic the scheme of plastic color sorter is as followed, feed hopper-vibratory feeder-chute-front ccd camera-front led backing light-background plate-rear ccd camera-rear led backing.\nPlastic color sorter machine | color sorting machines\nFigure 5.9 illustrates the response of typical filters used in sorting machines. 5.4.5 Detectors For a number of years the photomultiplier tube was the best detector of visible radiation. It has a good signal-to-noise ratio which enables detection of low light levels, and a satisfactory blue response.\nColour Sorting Machine | Electrostatic Platic Sepa|optical s\n|Colour Sorting Machine，Silicon & Rubber Separator，Electrostatic Plastic Separator，METAL SORTING MACHINE，Nir Optical Sorter，Colouoptic 86-Home > plastic injection mould machine>plastic colour sorter machine in georgia","domain":"optical_engineering"}
{"url":"https://www.genomics-online.com/kit/2648733/HLA+DQ-2+8+TaqMan+real+time+PCR+Kit/","date":"2020-09-20T21:22:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400198652.6/warc/CC-MAIN-20200920192131-20200920222131-00660.warc.gz","language_score":0.8625743985176086,"token_count":168,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__186838873","lang":"en","text":"MutaPLATE® HLA-DQ2+8 (TM) real time PCR Kit contains three allele specific primers and TaqMan probes, labeled with FAM, for the detection of the HLA-DQ2 & DQ8 alleles. The TaqMan probes bind to the amplificated target-DNA. Due to this, a fluorescence signal is generated and detected by the optical unit of the real time PCR instrument (e. g. Light Cycler®, Roche). Positive samples are identified due to the increase in fluorescence on the FAM (530 nm) channel during the PCR. An internal amplification control (IC), labeled with Yakima Yellow (560 nm), is also amplified with every sample. For a valid result, there must be a successful amplification of the IC on the YAK channel.","domain":"optical_engineering"}
{"url":"https://bencekirala.com/kiralik/1000w-fiber-lazer-icin-kapali-dongu-su-sogutucu-unitesi/","date":"2023-09-23T21:47:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.3/warc/CC-MAIN-20230923194908-20230923224908-00320.warc.gz","language_score":0.8603571653366089,"token_count":270,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__151433622","lang":"en","text":"Web site: https://en.teyuchiller.com/\nEmail: [email protected]\nTel: + 86-20-89301885\nFax: + 86-20-84309967\nClosed loop water chiller unit CWFL-1000 is specially designed to cool 1000W fiber laser and is manufactured by Guangzhou Teyu Electromechanical Co., Ltd (also known as S&A chiller), a professional Chinese industrial chiller manufacturer with 17 years experience.\nThe closed-loop water chiller unit CWFL-1000 has dual temperature control system and dual water, which can provide efficient cooling for fiber laser devices and optics simultaneously, saving a lot of cost and space.\nClosed Circuit Water Chiller Unit CWFL-1000 Features:\n1. 4200W cooling capacity; optional environmental cooler;\n2. Precise temperature control of ± 0.5;;\n3. The intelligent temperature controller has 2 control modes, applicable to different applied situations; With various setting and display functions;\n4. Double temperature fiber laser device and optics to meet different needs;\n5. Multiple power features; CE approval; RoHS approval; REACH approval;\n6. Optional heater and water filter.\nThe coolant warranty is 2 years.","domain":"optical_engineering"}
{"url":"http://astropixels.com/observatories/KPNO/KPNO-Mayall.html","date":"2017-04-28T00:39:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122720.81/warc/CC-MAIN-20170423031202-00443-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.913117527961731,"token_count":293,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__132431586","lang":"en","text":"Mayall 4-Meter Telescope Photo Gallery\n©2011 by Fred Espenak. All rights reserved.\nThe 4-meter (158-inch) Mayall Telescope is one of the largest optical telescopes in the world. Located near the 6875-foot summit of Kitt Peak, the 18-story observatory building can be seen from over 50 miles away. The telescope's 15 ton primary mirror is polished to one millionth of an inch and has a reflective aluminum coating one thousandth the thickness of a human hair.\nThe Mayall Telescope is used primarily for visible and infrared light observations and has played an important role in many fields of research. For example, the rotation curves of distant galaxies have been observed in order to determine the role of dark matter in the universe.\n(Adapted from Kitt Peak Virtual Tour )\nSteward Observatory's 2.3-meter Bok Telescope (also known as the 90-inch) is one of the largest telescopes on Kitt Peak. Built in 1969, the telescope is used for both imaging and spectroscopy by astronomers from University of Arizona, Arizona State University, and Northern Arizona University. The telescope is named in honor of Bart Bok, the prolific astronomer and director of Steward Observatory from 1966–1969.\n(Adapted from Bok Telescope Home Page )\nThe following photo gallery presents a collection of images of Mayall and Steward Observatories.\nClick on each thumbnail to see a larger image.","domain":"optical_engineering"}
{"url":"https://lightelligence.ai/index.php/product/hummingbird.html","date":"2024-03-01T08:28:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475203.41/warc/CC-MAIN-20240301062009-20240301092009-00755.warc.gz","language_score":0.8704445362091064,"token_count":355,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__62015445","lang":"en","text":"Our Hummingbird™ processor utilizes advanced vertically stacked packaging technologies to integrate a photonic and electronic die into one single package. Its revolutionary architecture provides a path forward to solve the “memory wall” faced by chip architects designing novel System-in-Packages with NoC interconnects.\nServing as the communications network for data centers and other high-performance applications, Hummingbird is the first in a family of products that utilize Lightelligence’s oNOC platform, improving computing performances by enabling innovative interconnect topologies via silicon photonics. Its waveguides propagate signals at the speed of light and utilize an all-to-all data broadcast network to each core on a 64-core domain-specific AI processor chip, giving Hummingbird significant advantages in latency and power reduction over traditional digital interconnect solutions.\nUnlike digital networks, Hummingbird’s oNOC technology increases density scaling by enabling interconnect topologies that would be otherwise unrealizable. It enables higher utilization of computing power due to more efficient communication. With oNOC, mapping workloads to hardware becomes easier and provides greater freedom to select the right topology for the computing task.\nHummingbird is implemented as a low-latency optical all-to-all broadcast network spanning 64 cores. With 64 transmitters and 512 receivers, it provides a framework to implement a variety of dense optical network topologies.\nHummingbird's electronic and photonic ICs are co-packaged and integrated into a PCIe form factor for installation in industry-standard servers. Coupled with the Lightelligence Software Development Kit (SDK), machine learning and AI workloads can be optimized to take full advantage of the oNOC.\nClick to expand","domain":"optical_engineering"}
{"url":"https://forum.facepunch.com/t/realistic-sniper-rifle/29539","date":"2022-01-22T08:44:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303779.65/warc/CC-MAIN-20220122073422-20220122103422-00329.warc.gz","language_score":0.8981800675392151,"token_count":160,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__164635103","lang":"en","text":"I would like to see a sniper rifle with adjustable scope, realistic ballistics (only bullet-drop, no wind-compensation please),\nand “breathing-effect” (the scope moving around a little when zoomed in).\nPreferably the scope would work like this:\nYou toggle the zoom by pressing the right mouse button.\nWhile zoomed, if you press “E” a slider appears to the right of the screen where you can change the height offset of the scope in both positive and negative values.\nThe offset value is always displayed to the top of the screen.\nA built in rangefinder, or a separate pair of binoculars with rangefinders would also be nice.\nCould someone please do this for me?","domain":"optical_engineering"}
{"url":"https://www.xiayuanst.com/aoi.html?language=en","date":"2024-03-05T00:57:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476592.66/warc/CC-MAIN-20240304232829-20240305022829-00150.warc.gz","language_score":0.9015180468559265,"token_count":222,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__160798704","lang":"en","text":"AOI-M series Optical Inspection Equipment\nTZTEK AOI-M series Optical Inspection Equipment combines many technologies such as TZTEK optical detection, autonomous Cam analysis and AI deep learning, as well as the detection and measurement integration equipment. It combines the traditional algorithm with AI algorithm to effectively perform false point filtering. It has a variety of resolution options, can adapt to different application scenarios, good detection effect, high degree of automation, low maintenance cost, and can be widely used in PCB, FPC, IC carrier board circuit detection.\nAOI-OL Rigid Board On-line Optical Inspection Equipment\nTZTEK AOI-OL On-line Optical Inspection Equipment integrates multiple technologies such as TZTEK optical inspection, independent Cam resolution and AI deep learning, with characteristics of high precision, high resolution and high efficiency. Connecting the etching line can automatically detect the size and thickness of the board, and automatically adapt to achieve the optimal drawing effect, which greatly reduces labor costs. Can be widely used in various PCB inner and outer layer inspection.","domain":"optical_engineering"}
{"url":"https://icuhomeinspection.com/service/thermal-imaging-inspections/","date":"2023-09-23T08:16:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506480.35/warc/CC-MAIN-20230923062631-20230923092631-00491.warc.gz","language_score":0.9023157954216003,"token_count":152,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__232300159","lang":"en","text":"This is a non-destructive testing that makes visible the heat differences across the surface of building and components from heat transfers.\nWe use the Infrared Inspection tools in conjunction with state of the art nondestructive moisture meter to locate hidden defects and potential problems that a typical home or building Inspection Company cannot show us.\nThe Thermographer uses an infrared imaging camera to see thermal energy emitted from an object or surface. Thermal, or infrared energy, is light that is not visible to the human eye. It is the electromagnetic spectrum that we perceive as heat.\nConduction – Heat transfer though or between solids.\nConvection – Heat via fluid.\nRadiation – Heat transfer via Electromagnetic wavelengths.","domain":"optical_engineering"}
{"url":"http://www.kwiznet.com/p/takeQuiz.php?ChapterID=259&CurriculumID=9&Num=4.1","date":"2018-01-18T19:47:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887600.12/warc/CC-MAIN-20180118190921-20180118210921-00167.warc.gz","language_score":0.947748601436615,"token_count":491,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__202378589","lang":"en","text":"|When one flips on the light switch in a dark room, the room instantly fills with light. It seems to happen all at once. This is because light travels fast- amazingly fast. The speed of light is 186,000 miles per second. Light travels so fast that the time taken by a person to blink its eyes three times, light could travel to the moon and back.\nRays of light travel in straight lines. This can be seen by making shadows. In a darkened room, shine a desk lamp or flashlight at a wall. Hold a book in front of the light. The light doesn’t bend or curve around the book. Instead, the book blocks the rays of light, which are traveling in straight line. And so the shadow of the book is seen on the wall.\nThe book does not let light to pass through it because it is opaque. Opaque materials block light. A wooden door is opaque. So is a metal can. Some materials are the opposite of opaque. They are transparent. Transparent materials are clear. One can see through them. They let light pass through almost unchanged. Glass and water are transparent.\nWhat is the color of sunlight? It seems as if it has no color. But the color of the sunlight is white. The amazing thing about it is that the white light of sunshine is actually made up of all the colors in the rainbow. Using a prism can prove it.\nIf one holds the prism near a sunny window, the light will shine through and make a rainbow like band of colors. This shows that even though light may appear to be white or colorless, light is really made up of all colors. When light goes through a prism, the glass slows it down and changes its path. The process is called refraction. A prism refracts the light. A lens refracts the light.\nA prism separates white light into the spectrum of colors. The prism bends the rays of light, but rays of each color bends differently. Red bends the least. Violet bends the most.\nRaindrops in the sky refract the light, which is what causes a rainbow. When light is refracted, it often separates into a combination of colors called the spectrum. The colors of the spectrum always appear in the same order: red, orange, yellow, green, blue, indigo, and violet.\nDirections: Answer the following questions.","domain":"optical_engineering"}
{"url":"https://forensicssource.com/products/protractor-with-laser-mount-12-inch-1007363","date":"2024-04-14T18:28:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.19/warc/CC-MAIN-20240414161724-20240414191724-00875.warc.gz","language_score":0.9279998540878296,"token_count":112,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__72361611","lang":"en","text":"Protractor with Laser Mount, 12\"\nDesigned for use with our high-powered BP-1 Trajectory Laser, this twelve-inch protractor is used to find and photograph angles quickly and easily. The adjustable arm easily slides from 10 degrees to 170 degrees and can be locked into place once the correct angle is determined. The laser beam creates a consistent straight line without the possible sag of string, thus increasing accuracy. The protractor is also available in a kit, which includes both the protractor and the BP-1 Trajectory Laser.","domain":"optical_engineering"}
{"url":"https://www.halloweencontacts.com/39-halloween-contacts/gecko-halloween-contacts.html","date":"2018-10-16T10:53:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583510749.37/warc/CC-MAIN-20181016093012-20181016114512-00394.warc.gz","language_score":0.7859362363815308,"token_count":138,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__189553873","lang":"en","text":"100 Item Items\nWarning: Last items in stock!\nPlease Note: All lenses sold by HalloweenContacts.com are not vision correcting lenses, they cannot be used for vision correction like those sold by an optometrist. However we will have to confirm any optical prescription you may have when placing an order.\n|Lens Type||Soft Contact Lens|\n|Base Curve||8.8 mm|\n|Materials||38% Polymacon, 62% Water content|\n|Wearing Schedule||Occasional use will last up to 1 year.|\n|Includes||2 Lenses in a box|\n|Power||0.00 (Plano Only)|","domain":"optical_engineering"}
{"url":"https://www.hj-chung.com/publication/deep-learning-stem-edx-tomography-of-nanocrystals/","date":"2024-04-17T16:10:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817158.8/warc/CC-MAIN-20240417142102-20240417172102-00333.warc.gz","language_score":0.9253923892974854,"token_count":206,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__86063576","lang":"en","text":"Energy-dispersive X-ray spectroscopy (EDX) is often performed simultaneously with high-angle annular dark-field scanning transmission electron microscopy (STEM) for nanoscale physico-chemical analysis. However, high-quality STEM-EDX tomographic imaging is still challenging due to fundamental limitations such as sample degradation with prolonged scan time and the low probability of X-ray generation. To address this, we propose an unsupervised deep learning method for high-quality 3D EDX tomography of core–shell nanocrystals, which can be usually permanently dammaged by prolonged electron beam. The proposed deep learning STEM-EDX tomography method was used to accurately reconstruct Au nanoparticles and InP/ZnSe/ZnS core–shell quantum dots, used in commercial display devices. Furthermore, the shape and thickness uniformity of the reconstructed ZnSe/ZnS shell closely correlates with optical properties of the quantum dots, such as quantum efficiency and chemical stability.","domain":"optical_engineering"}
{"url":"https://monclerwomens.org/file-ready/infrared-thermal-imaging-fundamentals-research-and-applications","date":"2019-02-18T11:03:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247484928.52/warc/CC-MAIN-20190218094308-20190218120308-00568.warc.gz","language_score":0.9104967713356018,"token_count":296,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__44792570","lang":"en","text":"Infrared thermal imaging fundamentals research and applications michael vollmer klaus peter mllmann on amazoncom free shipping on qualifying offers this new up to date edition of the successful handbook and ready reference retains the proven concept of the first. Following a look at the fundamentals of ir thermal imaging properties of the imaging systems as well as basic and advanced methods the book goes on to discuss ir imaging applications in teaching research and industry. Later assignments were with the university of kassel germany the university of california in berkeley usa as well as with various institutions in the united states and asia during sabbaticals his research interests include atmospheric optics spectroscopy infrared thermal imaging and the didactics of physics. Download citation on researchgate on sep 1 2010 michael vollmer and others published infrared thermal imaging fundamentals research and applications. Infrared thermal imaging fundamentals research and applications chapters in this book could be divided into three areas the fundamentals of ir thermal imaging and related physics two chapters ir imaging systems and methods two chapters and applications including six chapters on pedagogical applications ir imaging of buildings and\nHow it works:\n1. Register a Free 1 month Trial Account.\n2. Download as many books as you like ( Personal use )\n3. No Commitment. Cancel anytime.\n4. Join Over 100.000 Happy Readers.\n5. That's it. What you waiting for? Sign Up and Get Your Books.","domain":"optical_engineering"}
{"url":"http://www.vincent-ko.com/2013/10/transitions-collaborates-with-ic-berlin/","date":"2018-07-23T11:37:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676596336.96/warc/CC-MAIN-20180723110342-20180723130342-00027.warc.gz","language_score":0.9059147834777832,"token_count":160,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__201352227","lang":"en","text":"Transitions collaborates with ic! Berlin for a range of new collection that will make your life a little bit easier. Transitions offers light adaptive technology that provides protection for your eyes from the sun. The lenses will adapt to the light condition and will automatically adjust their tint––the lenses go darker when the sun is brighter and become clearer when it’s not as bright.\nic! Berlin produces and markets screwless sheet- metalglasses. They focus on the clip-on hinge system––it holds both the frame and temple by using a detachable clip. What this means is that you can disassemble and reassemble the glasses individually.\nThese amazing glasses are available right now with the price starting from £290 for the metal frames and acetate frames from £300.","domain":"optical_engineering"}
{"url":"http://www.alexalvarado.cl/blog/2016/11/30/two-ofc-207-invited-papers-in-arxiv/","date":"2020-10-01T21:53:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402132335.99/warc/CC-MAIN-20201001210429-20201002000429-00437.warc.gz","language_score":0.8167027235031128,"token_count":128,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__163271318","lang":"en","text":"Our two OFC 2017 invited papers are now in ArXiV:\n- Alex Alvarado, Information Rates and post-FEC BER Prediction in Optical Fiber Communications, Invited Paper, OFC 2017.\n- Xianhe Yangzhang, Mansoor I. Yousefi, Alex Alvarado, Domanic Lavery, Polina Bayvel, Nonlinear Frequency-Division Multiplexing in the Focusing Regime, Invited Paper, OFC 2017.\nThey will be presented the the Optical Networking and Communication Conference in March 2017.\n3,116 total views, 3 views today","domain":"optical_engineering"}
{"url":"https://eim.gr/laboratories/physical-quantities/dimensional/dimensional-laboratory/","date":"2023-12-01T05:36:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100276.12/warc/CC-MAIN-20231201053039-20231201083039-00539.warc.gz","language_score":0.8677923083305359,"token_count":198,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__139693454","lang":"en","text":"In the Dimensional laboratory the unit of length, meter (m), is realized using two He-Ne iodine stabilized lasers. Furthermore, the laboratory is equipped with a gauge block interferometer, gauge block comparators, an autocollimator and an indexing table, a universal one dimensional measuring machine, a three dimensional coordinate measuring machine, a roundness measuring machine, as well as roughness measuring systems. Some of the calibrations and measurements performed in the laboratory are:\nLasers at 543 nm and 633 nm used in interferometry applications in dimensional measurements.\nGauge blocks of grade 00, K, 0 by laser interferometry. Measurement range 0,5 – 300 mm.\nGauge blocks by mechanical comparison. Measurement range 0,5 – 1000 mm.\nAngles and optical polygons.\nRoundness, cylindricity, straightness, squareness, parallelism, and roughness of various surfaces.","domain":"optical_engineering"}
{"url":"http://zionqqkd333.jiliblog.com/5131707/eye-surgical-procedure","date":"2018-05-23T08:58:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794865468.19/warc/CC-MAIN-20180523082914-20180523102914-00436.warc.gz","language_score":0.9527267217636108,"token_count":1315,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__99316101","lang":"en","text":"Eye Surgical treatment has actually come to be a mainstream method of vision improvement, and also this post will certainly discuss the benefits and negative aspects of three various methods being offered to the medical consumer.\nLasik Eye Surgical treatment\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis and also is an eye medical system which permanently remedies vision by getting rid of a thin layer of the cornea. This procedure functions best on individuals with modest to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) as well as astigmatism associated with nearsightedness, and also that have thick corneas. It is one of the most popular medical vision adjustment approach.\nIndividuals with typical eye sight see items clearly because pictures are brought into an appropriate prime focus by the cornea and lens of the eye. Preferably, the cornea's curvature is evenly matched to its size in a typical eye. People with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the things seen are not focused properly. LASIK adjustments corneal shape by precise removal of corneal tissue, as well as by doing so corrects the eyes' focusing power.\nThere are, nonetheless, threats to LASIK eye surgical treatment.\nThere is a remote chance of complete loss of vision. If this takes place, it is usually since the client had a pre-existing problem which must have prevented the surgical procedure in the first place, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. People with large students are also bad prospects for LASIK. Dry eye disorder will certainly be worsened by this treatment.\nA couple of individuals whine that they completely see \"ghost\" pictures, have blurred vision, lessened contrast as well as negative evening vision. When LASIK wased initially presented, 5% of clients had post-operative complaints; nevertheless, refinements in the procedure have triggered this rate to drop to less than 1% if LASIK is carried out by competent practitioners and people are properly evaluated prior to surgery. If issues do happen, they could commonly be resoved by a retreatment.\nFDA has accepted LASIK laser eye surgical procedure since 1998. While there are a great deal of pleased patients, there are nevertheless no long term research studies regarding its impacts. Understand the constraints and the threats of LASIK eye surgical procedure prior to you sigh up for the procedure.\nThough less popular, these small implants can enhance vision in individuals with moderate to modest myopia without the risk of irreversible eye damage integral in the tissue removal technique of LASIK. Intacs are semi-circular disks implanted in the cornea which stretch it to assume a flatter shape. Though somewhat much less precise than LASIK, they are removeable and exchangeable, so if the person has an unexpected over- or under-correction, the implant can be eliminated as well as one more of a different dimension inserted to obtain the desired adjustment. The implants lie beside the cornea, so the central visual area is totally undamaged and undamaged, and also the toughness of the cornea is undiminished, making it i loved this a better alternative for pilots as well as those who take part in get in touch with sporting activities where eye injury is an opportunity.\nIntacs disagree for extreme nearsightedness as well as more than minor astigmatism (1.00 diopters), as the cornea could just be extended until now. If the Intacs are gotten rid of, vision go back to its preoperative degree. Other than vision modification, Intacs are also made use of to deal with keratoconus.\nIntacs are FDA authorized and 10 year studies have actually exposed no major troubles with Intacs and few client problems; nevertheless, due to the fact that the procedure takes extra training compared to LASIK, there are less eye surgical treatment clinics offering it. Nevertheless, the Intacs internet site offers a listing of experts in each state, as well a couple of in Canada, Europe and Mexico.\nDue to the fact that many individuals do not want to run the risk of LASIK and Intacs can not assist those with serious vision troubles, intraocular lens implants (IOL) are a new alternative authorized by the FDA in 2004 to fix moderate to severe nearsightedness. The Craftsmen lens, produced by Ophtec, resembles the kind of lens implant made use of to recover vision following cataract eye surgical procedure.\nThe brand-new IOL, called the Artisan, is meant for just individuals that have 2.5 diopters or less of astigmatism.\nThe artificial lens does not change the natural lens, yet is placed in front of it. The major trouble found with the dental implant was the constant loss of endothelial cells in the corneas of people who obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are vital in keeping the cornea clear. A three-year research revealed a consistent stable loss of endothelial cells of 1.8 percent a year. At this point, no one could forecast whether this loss will proceed at the very same price indefinitely, or perhaps its effect on corneal function.\nTo decrease lasting impacts of the tool on the corneal endothelium, the FDA is calling for that the brand-new lenses page be identified to define that they must only be dental implanted in individuals whose corneal endothelial cells are thick enough to stand up to minor cell loss.\nExtra serious complications were few: retinal detachment (0.6%), cataract development (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up study of its implant clients to better analyze the post-surgical occurrence of cataract development, retinal detachment and other sensory illness.\nThe Craftsmen lens is meant to be a long-term implant.Though it could be eliminated operatively, vision might not constantly return to just what it was before obtaining the lens. Since it does not influence astigmatism, clients with this trouble might still need glasses.","domain":"optical_engineering"}
{"url":"https://caviar.global/caviar-iphone-11-11plus/x-edition-alligatore-diamonds-clone-en/","date":"2020-07-03T19:10:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655882934.6/warc/CC-MAIN-20200703184459-20200703214459-00188.warc.gz","language_score":0.725400447845459,"token_count":133,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__125423988","lang":"en","text":"A12 Bionic Neural Engine System of the next generation\nXs: 5,8\", 2436×1125 pixels. Xs Max: 6,5\", 2688×1242 pixels.\nSuper Retina HD Display, OLED Multi‑Touch, HDR, 458 pixel/inch, brightness up to 625 cd /м², 3D Touch, True Tone\nDouble camera of 12 MP with wide-angled telephoto lens, 4K video recording with a frequency of 24, 30 or 60 frames/sec;\nTrue Depth camera of 7MP, 1080p video recording with the frequency of 30 or 60 frames/sec, Face ID support.","domain":"optical_engineering"}
{"url":"http://www.jcad.cn/jcadcms/news/100000/2018/62548f1dbd1d4a9a95a6719cac8d1e4a.shtml","date":"2018-10-21T19:24:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514314.87/warc/CC-MAIN-20181021181851-20181021203351-00180.warc.gz","language_score":0.9150646328926086,"token_count":292,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__128100450","lang":"en","text":"Parameter Estimation of Fog Degradation Model and CUDA Design\nYu Chunyan, Lin Huixiang, Xu Xiaodan, and Ye Xinyan\n(College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350116)\nDefogging algorithms based on atmospheric model always had atmospheric light and medium transmission limited by statistical or hypothetical information. Hence a non-hypothetical parameter estimation method was proposed. For precisely acquiring these parameters, the atmospheric light was solved by a quad-tree algorithm firstly. Secondly, a pre-trained convolutional neural network was proposed for estimating the transmission map optimized by the guided filtering algorithm further. Finally, by reversely solving the atmospheric scattering model, the de-fogging image was obtained. Experiments show that the proposed method has balanced performance on each index. It not only improves the degree of foggy image definition and brightness, but also efficiently avoids the Halo effect. Time performance also analysis indicates that, compared to other defogging algorithms, efficiency of our algorithm using CPU has increased 40 % at least. After parallelizing the time-consuming guided filtering algorithm through CUDA, the efficiency has improved remarkably which can process a fog image with the resolution of 640×480 pixels only in 0.048 9 s. It can be directly applied to video processing to meet real-time requirement.\natmospheric scattering model; quad-tree algorithm; convolutional neural network; CUDA","domain":"optical_engineering"}
{"url":"https://astronomy2024.org/10-december-come-hear-about-the-jwst-by-jwst-scientists/","date":"2023-11-30T20:46:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100232.63/warc/CC-MAIN-20231130193829-20231130223829-00141.warc.gz","language_score":0.9020372629165649,"token_count":146,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__261376709","lang":"en","text":"JWST stands for James Webb Space Telescope. This is the new generation telescope that will overtake the Hubble Space Telescope after over 30 years of incredible astronomical images and science.\nThe JWST is due to launch on 22 December this year, and a lot is at stake. To learn more about this feat of science and technology, join us:\non 10 December 2021 at 13:00 – 15:00 GMT as we speak to:\nDr. Sarah Kendrew from the European Space Agency and the Space Telescope Science Institute in the USA, and\nMr. Robel Geda from Princeton University, USA.\nIf you don’t register, the talks will be live on YouTube as well at this link.","domain":"optical_engineering"}
{"url":"https://emzorhesco.com/product/mobile-examination-light/","date":"2022-06-26T05:02:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103037089.4/warc/CC-MAIN-20220626040948-20220626070948-00417.warc.gz","language_score":0.8502068519592285,"token_count":301,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__83906295","lang":"en","text":"The light is extremely efficient, offering high intensity and performance. Ceiling, wall, boom, or mobile versions offer you versatility and a wide range of applications.\nExperience simple, streamlined ECG testing with a solution that’s designed to help your practice run more efficiently.\nThe revolutionary, wide-view PanOptic Ophthalmoscope addresses the fundamental challenge in ophthalmoscopy: seeing a full, clear view of the fundus in order to make more accurate assessments. Patented Axial PointSource™ Optics make it easy to enter undilated pupils. And with a 25° field of view, it offers a 5X wider view of the fundus than can be seen with a standard ophthalmoscope in an undilated eye. Viewing the fundus directly through the PanOptic can help you detect retinal changes related to hypertension, diabetic retinopathy, glaucoma, papilledema and more—so you can better diagnose diseases and care for your patients.\nEnhanced light output makes refractions easier than ever, by producing one of the sharpest, brightest and cleanest streaks available on the market\nProfessional Quality Readings of Oxygen saturation Level and Pulse Rate Monitoring\nMedical Emporium, 1 Osho Street Opebi, lkeja, Lagos State, Nigeria","domain":"optical_engineering"}
{"url":"https://recharge.health/blog/therapeutic-lights/","date":"2024-04-25T05:38:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00646.warc.gz","language_score":0.9486818313598633,"token_count":1254,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__162400773","lang":"en","text":"Your cart is currently empty!\nIn recent years, therapeutic light (light therapy) has gained more prominence as a safe, effective, natural and chemical-free treatment modality, becoming more widely adopted by major professional athletes, such as Norwegian footballer Martin Ødegaard and tennis player Casper Ruud.\nLight therapy (also known as photobiomodulation) is an umbrella term referring to various forms of therapy treatment that use photonic energy of light for purposes of producing therapeutic benefits.\nHowever, not all forms of light are created equal. Certain wavelengths of light are more beneficial than others, and then there are those that can even be hazardous to our health. So, how do you distinguish between different types of light?\nHowever, there’s still a lot of misunderstandings and misinformation about red light therapy out there, including claims that it’s a bogus new age invention, that it has no scientific basis, and that it’s exactly the same as going to a sauna. Although none of these claims are factual, myths about red light therapy continue to persist.\nRed light therapy, also known as low-level laser therapy or LED therapeutic light, utilizes light-emitting diodes (LEDs) in red and near infrared light wavelengths to stimulate the body’s natural process of healing.\nContrary to popularly perpetuated myths, red light therapy is neither new age nor a hoax. In fact, quite the opposite. Red light as a form of therapy has existed for more than a hundred years, having first been explored by Danish physician Niels Ryberg Finsen. He applied red light in the treatment of smallpox and lupus, and was awarded the Nobel Prize in Medicine in 1903 for his efforts.\nIn the mid-1990s, NASA scientists further explored and developed this technology after an accidental discovery during plant growth experiments in space showed that light-emitting diodes helped accelerate the healing of wounds on astronauts’ hands.\nFurther experiments demonstrated that red light therapy helped improve musculoskeletal training injuries in Navy SEAL team members by more than 40%, decreased wound healing time in crew members aboard a U.S. Naval submarine, and reduced the pain in children suffering from oral mucositis by 47%.\nRed light therapy treatments imitate the beneficial effects of natural sunlight at dusk and dawn, but without the harmful UV rays (more on that in the next section).\nResearch has shown that this type of low-level laser therapy reaches maximum effectiveness when it combines red and near infrared light wavelengths.\nBut what exactly is the difference between the two? Here’s a handy way to compare them:\n|Near Infrared Light\n|Belongs to the visible light spectrum\n|Belongs to the invisible light spectrum\n|Wavelengths of 625-700 nanometers\n|Wavelengths of 700-2,500 nanometers\n|Mostly effective on the surface of the skin\n|Effective both on the surface of the skin and 1 ½ inch underneath it\n|Used primarily (though not exclusively) for wound healing, skin rejuvenation, etc.\n|Used to relieve pain, repair muscle, recharge energy, recover faster, etc.\nThere are literally thousands of research studies that show the effectiveness of red light therapy, and the list of its benefits is practically endless. Here’s only a few:\nIn addition to wound healing, red light has also been proven effective in reducing fine lines, wrinkles, skin roughness, and increasing collagen density, which can improve joint health and skin elasticity.\nNear infrared light can energize your body by increasing the production of adenosine triphosphate, which fuels numerous processes in living cells.\nA combination of red and near infrared light can also help relieve pain, repair muscle, and recover faster after an exercise session.\nAs mentioned earlier, red light imitates certain healing properties of natural light, except for one crucial difference: it doesn’t include the harmful UV light. But what exactly is UV light?\nUV (aka ultraviolet) light has shorter wavelengths that are invisible to the human eye – typically from 100 to 400 nanometers (compare that to much longer wavelengths of red and near infrared light).\nThe Sun contains the full spectrum of UV radiation: UV-A, UV-B and UV-C rays. While UV-A rays are mostly absorbed by our atmosphere, the exposure to UV-B rays can cause not only sunburn, but also increase the risk of DNA and other cellular damage that can lead to cancer.\nSo, although the Sun provides Vitamin D, a necessary nutrient, it also poses risks that can cancel out its benefits. In contrast, red light contains no UV rays whatsoever, and it emits very little heat, so there is no risk of burns, DNA or cellular damage, or cancer.\nThe wavelengths of infrared light are much larger (approximately the size of a pin head) and longer (15 micrometers to 1 millimeter) than those of near infrared light. They’re actually closer to the microwave region of the electromagnetic spectrum.\nInfrared light is typically utilized in saunas through infrared electromagnetic radiation, and it functions through using heat for healing purposes. However, unlike near infrared light that can penetrate around an inch and a half beyond the surface of the skin, infrared light can only reach about 0.04 inches beneath the skin, while the rest of it gets absorbed by the water within our body.\nInfrared saunas also emit a high amount of electromagnetic fields that, just like UV radiation, can potentially cause breaks in cellular DNA and even lead to cancer. Because red and near infrared light emit very low levels of electromagnetic fields, this form of therapy is much safer than going to an infrared sauna.\nRed light therapy has been scientifically explored for more than a hundred years, and numerous research can testify to its health benefits. It doesn’t involve heat, UV rays, or electromagnetic fields, which means that not only is it effective, it’s also the safest form of light therapy.","domain":"optical_engineering"}
{"url":"https://seasport.com.au/thunder-led-driving-light-bar-24-led-dual-row/","date":"2022-08-19T05:00:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573623.4/warc/CC-MAIN-20220819035957-20220819065957-00112.warc.gz","language_score":0.8337768912315369,"token_count":155,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__70780530","lang":"en","text":"Hard wearing LED bar driving lights designed for long distance on and offroad visibility.\nThe driving light bars are made from an extruded die cast aluminium housing with a polycarbonate lens and are supplied with stainless steel mounting brackets. They feature 5 watt OSRAM LEDs and are sealed to an IP67 rating.\nLEDS: 24 x 5 Watt OSRAM LEDs\nLumens: 12,000 Lumens\nVoltage: Suits 9-32 Volt applications\nDimensions: 359mm x 58mm x 74mm\nCurrent Draw: 10 Amp @ 12 Volts\nLens Material: Polycarbonate\nHousing Material: Die cast aluminium housing\nMounting Brackets: End and slide\nBeam Pattern: Combination","domain":"optical_engineering"}
{"url":"https://hospinov.com/revolutionizing-the-tech-industry-north-americas-role-in-shape-measuring/","date":"2024-04-18T17:27:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817222.1/warc/CC-MAIN-20240418160034-20240418190034-00464.warc.gz","language_score":0.9565871953964233,"token_count":630,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__55897956","lang":"en","text":"Revolutionizing the Tech Industry: North America’s Role in Shape Measuring Device Innovation\nThe tech industry is a dynamic and ever-evolving landscape, with North America at the forefront of many groundbreaking innovations. One such area where North America has been making significant strides is in the development of shape measuring devices. These devices, which are used to accurately measure the dimensions of an object, are revolutionizing various sectors, including manufacturing, construction, and healthcare.\nNorth American tech companies have been instrumental in driving the innovation and development of these devices. They have been pushing the boundaries of what is possible, creating devices that are more accurate, faster, and easier to use than ever before. This has been made possible through a combination of cutting-edge research, a culture of innovation, and a willingness to take risks.\nOne of the key areas where North American companies have been leading the way is in the development of 3D scanning technology. This technology uses lasers or structured light to capture the shape and size of an object in three dimensions. It has a wide range of applications, from quality control in manufacturing to creating detailed 3D models for virtual reality experiences.\nNorth American companies have been at the forefront of developing this technology, creating devices that are more accurate and faster than their predecessors. They have also been working on making these devices more accessible, developing handheld scanners that are affordable and easy to use.\nAnother area where North American companies have been making significant strides is in the development of non-contact measurement devices. These devices use technologies such as laser triangulation or capacitive sensing to measure the dimensions of an object without physically touching it. This is particularly useful in industries such as semiconductor manufacturing, where even the slightest contact can damage delicate components.\nNorth American companies have been leading the way in developing these non-contact measurement devices, creating systems that are more accurate and reliable than ever before. They have also been working on making these systems more user-friendly, developing intuitive interfaces and software that make it easy for anyone to use these devices.\nThe impact of these innovations is far-reaching. In the manufacturing sector, for example, these devices are helping to improve quality control, reducing the number of defective products and saving companies millions of dollars. In the construction industry, they are helping to ensure that buildings and infrastructure are built to exact specifications, improving safety and durability. In the healthcare sector, they are being used to create detailed 3D models of patients’ bodies, improving diagnosis and treatment.\nIn conclusion, North America’s role in the innovation of shape measuring devices is revolutionizing the tech industry. Through a combination of cutting-edge research, a culture of innovation, and a willingness to take risks, North American companies are creating devices that are more accurate, faster, and easier to use than ever before. These devices are having a profound impact on a wide range of industries, improving quality control, enhancing safety, and saving companies millions of dollars. As we look to the future, it is clear that North America will continue to play a pivotal role in driving the innovation and development of shape measuring devices.","domain":"optical_engineering"}
{"url":"https://orfeo.kbr.be/handle/internal/2986?show=full","date":"2021-12-01T09:37:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359976.94/warc/CC-MAIN-20211201083001-20211201113001-00616.warc.gz","language_score":0.659387469291687,"token_count":1044,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__135597403","lang":"en","text":"Dear user, changes will soon be made to Orfeo. We will undertake the migration to a new version, another environment (and therefore a new URL: https://orfeo.belnet.be/) and another provider. Belnet will take over the management of Orfeo in the future. For you, this means that no changes, modifications or uploads can be made to the database Orfeo from the 1st of December 2021 to the 10th of December 2021. The database remains available for consultation. From the 10th of December 2021 onwards, you can reach Orfeo via the new url https://orfeo.belenet.be/. Our apologies for the inconvenience.\nTunable acousto-optic spectral imager for atmospheric composition measurements in the visible spectral domain\n|dc.contributor.author||Van Opstal, B.|\n|dc.contributor.author||De Vos, L.|\n|dc.description||We describe a new spectral imaging instrument using a TeO2 acousto-optical tunable filter (AOTF) operating in the visible domain (450–900 nm). It allows for fast (∼1 second), monochromatic (FWHM ranges from 0.6 nm at 450 nm to 3.5 nm at 800 nm) picture acquisition with good spatial resolution. This instrument was designed as a breadboard of the visible channel of a new satellite-borne atmospheric limb spectral imager, named the Atmospheric Limb Tracker for the Investigation of the Upcoming Stratosphere (ALTIUS), that is currently being developed. We tested its remote sensing capabilities by observing the dense, turbulent plume exhausted by a waste incinerator stack at two wavelengths sensitive to NO2. An average value of 6.0±0.4×1017 molecules cm−2 has been obtained for the NO2 slant column density within the plume, close to the stack outlet. Although this result was obtained with a rather low accuracy, it demonstrates the potential of spectral imaging by using AOTFs in remote sensing.|\n|dc.title||Tunable acousto-optic spectral imager for atmospheric composition measurements in the visible spectral domain|\n|dc.subject.free||Acousto-optical tunable filter|\n|dc.subject.free||Slant column densities|","domain":"optical_engineering"}
{"url":"https://aussiepensnthings.com.au/shop/handcrafted-red-cedar-magnifying-glass-mg102/handcrafted-red-cedar-magnifying-glass-mg102/","date":"2021-09-26T07:53:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057830.70/warc/CC-MAIN-20210926053229-20210926083229-00064.warc.gz","language_score":0.8054820895195007,"token_count":127,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__139128362","lang":"en","text":"See Bigger and Brighter with this Handcrafted Magnifying Glass.\nThe magnifiying glass is double polished for a sharper image resolution. Includes a quality 2-1/2″ ground glass lens and a 3-1/2″ handle with 24kt gold plated components. Our 24kt gold uses a “premium rack plating” process and is covered with an epoxy coating for extreme durability.\nView below for more product details and a description of the material this item has been handcrafted from.\n|Shipping Australia:||Free within Australia|\n|Payment Options:||Credit Card|","domain":"optical_engineering"}
{"url":"http://isit.u-clermont1.fr/en/content/Visual-Mapping-Humanoid-Robots-and-Personal-Navigation","date":"2017-04-29T00:05:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123102.83/warc/CC-MAIN-20170423031203-00639-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9357010126113892,"token_count":218,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__135047917","lang":"en","text":"Visual Mapping for Humanoid Robots and Personal Navigation\nNowadays, 3D applications have recently become a more and more popular topic in robotics, computer vision or augmented reality. By means of cameras and computer vision techniques, it is possible to obtain accurate 3D models of large-scale environments such as cities. Vision-based localization in a prior 3D map and Visual Simultaneous Localization and Mapping (SLAM) are two techniques of great interest. Robots need to perform tasks in the environment autonomously, and for this purpose, is very important to know precisely the location of the robot in the map. In the same way, providing accurate information about the location and spatial orientation of the user in a large-scale environment can be of benefit for those who suffer from visual impairment problems. In this talk, I will describe my research towards efficient visual SLAM and vision-based localization algorithms applied to humanoid robots and visually impaired people. In addition, I will show my latest results on visual SLAM in highly dynamic environments.\nMore information could be found in Pablo's website:","domain":"optical_engineering"}
{"url":"http://rgbwphil.blogspot.com/","date":"2021-10-17T01:32:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585045.2/warc/CC-MAIN-20211016231019-20211017021019-00672.warc.gz","language_score":0.8002410531044006,"token_count":1269,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__36603736","lang":"en","text":"RGBWW+W 5in1 LED Chip\nRGBWW+W 5in1 led is r,g,b,warm white and cool white color 5 color chips inside the 5050 smd led,one led have one rgb led strip function and two pure white led strips, can be achieve different color for different emotions ,rgb can be use as the holiday lighting for decoration,warm white and cool white can be use for normal lighting.\nit can use as the lighting source for the led strips,led panels and so on.\nKindly check the link for more details about 5050 5in1 led chip.\ndigital rgb neon tube led light\nDigital rgb neon light with colorful color change can be greatly in the decoration projects with high brightness and better color effect,here are our new product,DC5V/12V/24V low voltage flexible digital rgb pixel neon led lights:\nVideo about the ws2811 digital rgb led neon lights:\nOur digital rgb neon tube flexible led light is using our low voltage (DC5V,12V,24V) digital rgb led strips as lighting source.the strips can be APA102,SK9822,SK6812,WS2813B,WS2811...\nAnd the strip is inserted inside the neon tube as below picture:\nThe color effect is very uniform and high brightness..\nit is IP68 waterproof can be outdoor use.\nDC12V WS2815 LEDWS2815 led is DC12V digital RGB smd led,all the component package inside the 5050 smd led. It also can be mini edition：WS2815-MINI LED.WS2815 breakthrough the limitation of digital rgb led just can be dc5v,and achieve the dc12v inidividual pixel rgb led,which can be greatly use in the lighting lamps,especially the dc12v digital rgb pixel strips.For it is DC12v,so the 2815 can effectively reduce the operating current of the entire pixel,and reduce the voltage drop in the circuit board , greatly ensure that the pixels in a very long distance transmission to achieve good blending consistency.but the PWM refresh frequency is just 2kHZ;\nPictures of WS2815 :\nws2815 application circuit：\n● Control circuit and RGB chips are integrated in one 5050 package components, constitute a complete external\n● DC12V power supply,effectively reduce the working current of the whole pixel,lower PCB board’s voltage drop,\nto the greatest extent Guarantee the pixels in a good mix of light consistency when long distance transmission.\n● Using the built-in signal reshaping circuit to achieve the signal waveform shaping, and no distortion accumulate of\nwaveform when signaling;\n● Built-in signal shaping circuit, any one pixel point again after received signal waveform shaping output, ensure the\nline waveform distortion does not accumulate;\n● The gray levels of each pixel are of 256 levels, which achieves “256*256*256=16777216” full-color display, and\n● Port refresh frequency reaches to 2kHZ;\n● Serial cascade interface: data receiving and decoding depend on just one signal wire;\n● Dual-signal wires version, additional one signal wire,signal break-point continuous transmission;\n● Any two points’ transmission distance no more than 5m,there is no need to add any circuit;\n● When the refresh rate is 30fps, cascade pixels are no less than 1024 pixels;\n● Data transmitting at speeds of up to 800Kbps.\n● Good color consistency reliability, high cost-effective.\n● LED Shoes light,Digital products,S style flexible strip,Architectural model,etc;\n● LED curtain screen,LED pixel screen,LED Special-shaped screen;\nWS2815-MINI is an intelligent control LED light source that the control circuit and RGB chip are integrated in a\npackage of 3535 components,outlook is the same as 5050 LED;Any components is a pixel;Its internal includes\nintelligent digital port data latch and signal reshaping amplification drive circuit.Also include a precision internal\noscillator and a programmable constant current control part,which achieves highly consistent color effect.Realize double\nsignal transmission,if any pixel failure,it won’t affect the whole display;\nThe data transfer protocol use single NZR communication mode. After the pixel power-on reset, the DIN port\nreceive data from controller, the first pixel collect initial 24bit data then sent to the internal data latch, the other data\nwhich reshaping by the internal signal reshaping amplification circuit sent to the next cascade pixel through the DO port.\nAfter transmission for each pixel, the signal to reduce 24bit. Every pixel adopts auto-reshaping transmit technology,\nmaking the pixel cascade numbers are not limited to the signal transmission, only relate to the speed of signal\nThe BIN receives the data signal, and then compare the data with the DIN side after phagocytosis of 24bit data, if\nDIN do NOT receive the signal, then switching to BIN for receiving the input signal, which ensure that any the IC's\ndamage does not affect the signal cascade transmission and make the BIN in state of receiving signal until restart after\nRefresh Frequency updates to 2KHz, Low Frame Frequency and no Flicker appear in HD Video Camera.\n300us or more of reset time, it won’t cause wrong reset while interruption, it supports the lower frequency and\nMore details pls see the datasheet of WS2815\nDigital rgb side emitting addressable led strip ws2811\nOur new developed digital RGB side emitting led strip is use the ws2811 ic as the color dimming controller,and the leds are individual RGB pixel leds (not R+G+B),it is DC5V 60led 020 addressable rgb per m,full color addressable which can be DMX console controlled, artnet converter controlled with software,such as the madrix,MadMapper...","domain":"optical_engineering"}
{"url":"http://biomedical-optics.com/optics01.html","date":"2019-05-24T23:28:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257781.73/warc/CC-MAIN-20190524224619-20190525010619-00111.warc.gz","language_score":0.8106778860092163,"token_count":448,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__132179129","lang":"en","text":"1. Spherical Lenses (Achromats)\nWe can produce singlet, cemented doublets, cemented multilayer lenses. Achromatic lenses are\noptimized by computer to correct for on-axis spherical and chromatic aberrations. Metal housing can be\nprovided according to customer specification.\nMinimum Diameter: 1.8mm.\nMinimum Radius of Curvature: R=1mm.\nAperture: ordinary mirrors: 3--6 high-precision lenses: 1—2.\nQuality Surface: ordinary lenses: 60/40, 40/20 scratch and dig;\nhigh-precision lenses: 20--10 scratch and dig.\nCentering: 1’—3’(depending on diameter).\nDiameter Tolerance: 0.03mm.\nCenter Thickness Tolerance: ordinary request: 0.1mm; special request: 0.02mm.\nCoating: anti-reflective coating, broadband anti-reflective coating, single-point anti-reflective coating.\nLarge or extra-large spherical lenses with high-precision have been challenging to make in whole optical\nmanufacturing industry. After exploring and making efforts for many years, we can now produce extra-\nlarge spherical lenses with the diameter of 300-500 mm. The technical parameters include: the aperture\nis 3--20, the quality surface is 60~40, the centering is 1’—3’ and the diameter tolerance is 0.5mm.\n2. Customized Lenses\nAccording to the customer's request, we can manufacture various spherical lenses, flat lenses,\ncylindrical lenses, aspheric lenses, pyramidal lenses through special processing methods. We can\nalso supply your special requirement with very a competitive price.\n3. Ball Lenses and Half-ball Lenses\nBall lenses are great tools for improving signal coupling between emitters, detectors and fibers.\nDiameter: 1 mm -- 100 mm (ordinary ball).\n400 mm (craft ball).\nDiameter Tolerance: +/-0.01 mm\nSurface Quality: 60/40, 40/20 scratch and dig.","domain":"optical_engineering"}
{"url":"http://arizonapirateparty.com/information/383963-new-laser-based-on-unusual-physics-phenomenon-could-improve-telecommunications","date":"2017-06-25T00:05:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320368.57/warc/CC-MAIN-20170624235551-20170625015551-00611.warc.gz","language_score":0.9170106053352356,"token_count":194,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__144660599","lang":"en","text":"The technology could revolutionize the development of surface lasers, making them more compact and energy-efficient for communications and computing applications. The new BIC lasers could also be developed as high-power lasers for industrial and defense applications.\n\"Lasers are ubiquitous in the present day world, from simple everyday laser pointers to complex laser interferometers used to detect gravitational waves. Our current research will impact many areas of laser applications,\" said Ashok Kodigala, an electrical engineering Ph.D. student at UC San Diego and first author of the study.\n\"Because they are unconventional, BIC lasers offer unique and unprecedented properties that haven't yet been realized with existing laser technologies,\" said Boubacar Kanté, electrical engineering professor at the UC San Diego Jacobs School of Engineering who led the research.\nBIC lasers can be readily tuned to emit beams of different wavelengths, a useful feature for medical lasers made to precisely target cancer cells without damaging normal tissue.","domain":"optical_engineering"}
{"url":"https://cameragurus.com/best-wide-angle-lens-for-sony-a7iii/","date":"2024-02-23T09:05:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474377.60/warc/CC-MAIN-20240223085439-20240223115439-00501.warc.gz","language_score":0.9062345027923584,"token_count":2961,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__155965482","lang":"en","text":"While doing my routine tests with the Sony A7iii, i decided to test 13 different wide angle lenses, and i was able to shortlist 5 of them. Out of those 5, the Rokinon RK12M-E was the best bang for your buck, meaning it provided amazing value for your money. If you are looking for something that is more professional, then the Sony E 10-18mm, F4 OSS is a great option. I will talk about each of these lenses in detail in the following sections, and we will discuss their pros and cons.\nSony A7 III is a mirrorless interchangeable-lens digital camera that is the most useful full-frame cameras available in the market. It features a combination of value and efficiency. The camera can capture amazing shots even in low light conditions. One can also use this camera to capture wide-angle photos with specialized lenses.\nBest For Low-Light\n|Sony FE 20mm F1.8 SEL20F18G\n|Check Price On Amazon\nBest For Portraits\n|Sony 55mm F1.8 Sonnar T FE ZA\n|Check Price On Amazon\nBest For Travel\n|Sony FE 16-35mm F2.8 GM (SEL1635GM)\n|Check Price On Amazon\nThe Most Versatile\n|Sony E 10-18mm F4 OSS SEL1018\n|Check Price On Amazon\nBest For Landscapes\n|Rokinon 12mm F2.0 (RK12M-E)\n|Check Price On Amazon\nWide-angle lenses, as the name suggests, are the ones that offer a significantly broader view than that of other lenses. If you are interested in outdoor and landscape photography with your Sony A7 III, you must pick the right wide-angle lens. We have come with a list of 5 best wide-angle lenses for Sony A7 III and hope it will help you invest in the right product. If you are looking for the same, here is the list to explore.\nTop 5 Best Wide Angle Lens for Sony A7 III\n5. Rokinon RK12M-E\nRokinon’s 12mm ultra-wide lens can be the best pick for Sony mirrorless cameras in your budget. It is a prime super lens designed for wide-angle photoshoots. The lens is compatible with most of the Sony E mount cameras.\nThe lens comes with a nanocrystal coating system (NCS) that facilitates improved light transmission. The technology also reduces internal reflections during the shoot.\nThe aperture range of the lens is f2.0-22, while the ultra-wide focal length is 12mm. The minimum focusing distance of the lens is 7.9″. The lens has been optimized for outstanding optical quality. With this versatile lens, you will be able to capture excellent optimal quality images.\nThe lens provides accurate ultra-wide 110-degree coverage for an edge-to-edge photoshoot. The lens utilizes three high precision lens elements to ensure outstanding image quality and features a 67mm filter size.\nThe aperture is relatively fast, and it will help the shooter to capture beautiful images in low-light conditions. The lens helps to deliver extremely sharp images. Rokinon is one of the leading DSLR lens manufacturers globally, and their lenses are known for their unparalleled quality and performance. The lens features a compact design and is excellent as a travel accessory.\nThe lens makes low-light photography and videography unique. Its super-fast aperture will enable you to shoot indoor without using the flash. If you love traveling, this compact camera lens can be a perfect companion for you.\n4. Sony Wide Angle Lens, E 10-18mm, F4 OSS\nIf you are a professional photographer and love capturing landscapes or striking interior shots with your camera, this wide-angle lens is designed for you.\nThis versatile camera lens and it will allow you to capture stunning photographs without any distortion.\nThe lens will help you to capture great photos, even in low light conditions. The Sony F4 OSS lens delivers the best quality images, and seasoned photographers love it.\nThe minimum focal length of the lens is 10mm, while the minimum focus distance is 0.82ft/0.25mtr. The max magnification ratio of the lens is 0.1x. The maximum aperture is f/4, while the minimum is f/22. The super-wide zoom lens will make landscape photography amazing. The lens is suitable for both amateur and seasoned photographers.\nThe lens features circular aperture blades that cause a blurred effect in the background. Unlike the traditional optical glasses, ED (Extra-Low Dispersion) glass reduces chromatic aberration and ensures greater contrast in the images.\nBesides, its aspherical lens elements will reduce spherical aberration. It features lens-based optical stabilization technology. It helps the users to deal with even the slightest movement efficiently.\nThe manufacturer has used a silent linear motor that makes the lens exceptionally quiet. Also, you will get a distance encoder and play a crucial role in flash metering. The lens component can detect the target object’s position and send signals to the CPU to analyze the distance of the target object. That’s why it’s considered to be a great lens for real estate photography.\nThe lens also comes with internal focusing as an additional feature. The short minimum focusing distance and quick autofocusing help the camera to capture stunning images. The lens features a filter threat in the front, and it does not rotate with the lens. If you use a polarizing filter, the feature will be an added advantage for you.\n3. Sony Zoom Lens, FE 16-35mm, F2.8 GM\nThis versatile lens is meant for those photographers who work on action shoots. If you cover sporting events or any such situations where quick shots are required, you can prefer this lens. Manufactured by Sony, many professional photographers around the world love this lens. At 35mm, one can use the lens to shoot high-quality photographs.\nIf you like documentary style photographing, this lens will be an ideal choice for you. It will give you a semi-wide perspective required to capture some fantastic and distortion-free photographs.\nThe lens will also allow you to zoom out to 16mm when capturing the wide landscapes. The lens is intended to get 50 lines pair/mm ability.\nIts features technologies like w/ high surface precision and two XA elements. The maximum magnification ratio of the lens is (x) – 0.19, while the minimum focus distance is 0.92 ft or 0.28mtr.\nThe lens features a constant F2.8 max aperture and ensures excellent exposure and depth of field. Its petal shape hood, bayonet type aperture blades make it one of the most stylish wide-angle camera lenses.\nThe lens comes with the G master design that ensures uncompromising quality, including smooth bokeh. The lens offers 107 -63-degree angle views.\nThe wide-angle lens for Sony A7 III will enable you to capture great images uniquely irrespective of the zoom setting and focus distance. The lens will help you to capture high-resolution photos always with spectacular bokeh in the background.\nIf you are a landscape or architecture photographer, or any other professional subjects for that matter, this lens will help you achieve extreme quality resolution. The lens comes with a lot of versatility, and you can call it one of the best for wide-angle photography.\n2. Sony 55mm Full Frame Prime Lens, F1.8 Sonnar T FE ZA\nIf you own a Sony Mirrorless system, you must carry a 50mm prime lens for ultimate photography experience. Sony’s 55mm full-frame lens is the professionals’ choice due to its performance, size, and price. The lens weighs only 281 grams, and it will set well with your Sony A7 III.\nThe lens features f/1.8 aperture, but it is lighter and smaller than other 55mm lenses. The lens works well in low light photography and you can make it your travel companion any time.\nThe maximum focal length of the lens is 55mm, while is filter diameter is 49mm. Apart from this, the lens Diaphragm blades 9, lens elements, or groups is 5/7. The minimum aperture of the lens is 22, while the maximum limit is 1.8. The angle view of the lens is 43″ or 35mm. 14x magnification and Carl Zeiss quality and resolution will give you ultimate photography experience.\nThe lens wears an innovative optical design that reduces internal reflection to deliver 100% satisfactory solutions. The lens comes with a circular aperture that ensures the perfect bokeh effect. Traditional aperture lenses cannot match the advantages of a circular aperture.\nThe aspherical lens elements will help you to reduce aberration. The lens features Carl Zeiss T* coating. Its high-quality coating removes lens flares, light scattering, and internal reflection. T* coating plays a major role in capturing stunning images.\n1. Sony Ultra Wide Angle G Lens, Full Frame Large Aperture, 20mm F1.8\nWhether you plan to shoot photos indoors or outdoors, a full-frame ultra-wide-angle lens can help you capture outstanding images. Sony has brought another wide-angle lens for high-quality photoshoots. The maximum focal length of the lens is 20mm. It is a solid ultra-wide prime G lens that delivers images with wide-open resolution.\nThe maximum aperture of the lens is F1.8, which will help you capture images with extraordinary field and exposure depth. The lens can be an excellent choice for APS-C2 and full-frame cameras.\nIts compact and lightweight design will help you to carry it anywhere. It can be a great travel companion for you. The 20mm lens comes with advanced aspheric elements required for natural and lifelike photography.\nThe manufacturer has also added two XD extreme dynamic linear motors that ensure quick and accurate autofocus. Its fast F1.8 maximum aperture will help you to capture amazing photographs in scenarios like starry nights, streets, environmental portraits, and landscape.\nThe 20mm ultra-wide-angle lens from Sony is an excellent choice for photographers who love outdoor photoshoot. It helps to deliver photos with outstanding bokeh. The lens comes with advanced optical design and aspherical elements and three extra-low dispersion elements.\nThese elements help the lens to reproduce an excellent point light source. The 20mm F1.8 G ultra-wide lens comes with a switchable click stop. You can turn it ON for stills and OFF for video shooting.\nThings to Look for Before Buying A Wide Angle Lens for Sony A7 III\nWhether you plan to buy a wide-angle lens for your Sony A7 III or any other camera, you need to take care of some factors before selecting one. Before picking a lens for your camera, you need to figure out what kind of lens will suit your need best. For example, if you plan to shoot landscape, then a wide angle lens will do just fine. However, if you want to take macro shots or portraits, then you need a portrait lens for your Sony A7iii.\nHence, you need to look at the abbreviations and specifications to purchase the right lens for your need. Here, we will highlight some important aspects you need to consider before buying the best wide-angle lens for Sony A7 III.\nEach brand mentions the maximum aperture of the lens in the product description section. If you are buying such lenses for the first time, can find the aperture details stated like f/2.8. The smaller the number is the greater light the sensor will receive through the lens.\nIf you are looking for a zoomable lens, the aperture of such lenses will be between f/2.8-f/5.6. The smaller aperture signifies light for the widest angle, while the large figure suggests the light your sensor will get when at the maximum zoom mode.\nThe focal length is another important factor you need to take care of when buying the best wide-angle lens. You will find some figures expressed in mm like 18mm, 20mm, 50mm, and more. The higher the focal number the powerful its zoom will be. The lower focal length indicates its ability for excellent wide shoots. If the number is below 50-30mm, it will be good for wide-angle photo shoots.\nThe format is also an important aspect you need to be careful about when investing in a lens. When buying the lens, make sure it can capture images big enough to cover up the sensor. The sensor’s size varies from one camera to another, which is why you need to ensure that the lens you have chosen can cover up the sensor.\nFor example, Nikon DSLRs feature full-frame sensors, and they are compatible with F-mount lenses. Sony cameras like A7 III are mirrorless, and they are compatible with E-mount lenses.\nUltra Wide Angle\nIf you are buying the lens for wide-angle photoshoots, make sure the lens has been designed for the same. To identify the best wide-angle lens, you must look at its focal length.\nLenses that come with a 17-20mm focal length range are considered right wide-angle or ultra-wide-angle lenses. With such lenses, the target object close to the camera will look huge but distant objects will look prominent.\nThese are some of the critical aspects of a camera lens you need to be careful about when buying the best wide-angle lens for your Sony A7 III camera.\nIf you are interested in outdoor and landscape photography, you must buy the best wide-angle lenses. You need to pick the right lenses to capture 100% satisfactory images. With the list of the five best wide-angle lenses for the Sony A7 III camera, you can choose the right one. Compare the features, read user reviews, and make an informed decision. Happy Clicking!\nCamera Tester & Reviewer\nI spend most of my time taking photos & videos of everything in sight. Yes, I am a stock photographer and I’ve probably taken more than 700,000 photos so far.","domain":"optical_engineering"}
{"url":"https://www.selfstudyworld.com/2019/03/optical-isolators.html","date":"2022-10-07T13:36:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030338073.68/warc/CC-MAIN-20221007112411-20221007142411-00059.warc.gz","language_score":0.9164367914199829,"token_count":156,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__171893305","lang":"en","text":"Optical isolators convert the input signal energy to light energy typically with a light-emitting diode (LED). The light energy is then converted back to electrical energy, typically with a photosensitive transistor, and then passed to the output.\nThe working of an optical isolator is based on optical isolation which is shown in figure 3.23. LEDs produce light when a voltage is applied across them.\nThe direction of the plane of polarization rotates is controlled by how the Faraday rotator affects the light beam. The change in the state of the light can be controlled precisely with a magnet.\nAn optical diode is another term given to a device capable of directing get in this way.\nNoise levels are also reduced.","domain":"optical_engineering"}
{"url":"http://knowledgeableideas.blogspot.com/2013/07/a-contact-lens-that-enables-you-to-zoom.html","date":"2018-06-25T15:18:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267868135.87/warc/CC-MAIN-20180625150537-20180625170537-00551.warc.gz","language_score":0.9493487477302551,"token_count":341,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__38074411","lang":"en","text":"Scientists made a prototype contact lens and glasses system that enables you to zoom in on a specific thing to 2.8 times magnification. The lenses perform the zooming, while the glasses allow you to shift between normal and magnified sight. At this time, the lens' technical engineers, a group with members from California and Switzerland, are developing it for those who have age related macular degeneration , which happens to be the number one reason for eyesight loss in Americans older than 60. The technical engineers are actually preparing to begin a clinical experiment in November, the BBC said.\nThe U.S. Defense Advanced Research Projects Agency (DARPA) funded the groundwork, recommending that the U.S. government is eying super vision of soldiers in the near future. But, it really must be better to create something for macular degeneration first, since it's better to come up with a possible remedy for eyesight loss compared to it is to improve on healthy eyesight, the BBC said. The lens is composed of concentric regions. The center region allows light through normally, for regular eyesight. Whereas, the corners of the lens are purposely designed to reflect light as well as magnify it. The final lens is 1.17 millimeters at the thickest region around the corners and it's manufactured from the similar hard plastic as first-generation contact lenses, the technical engineers explained in a paper they published in the journal Optics Express.\nThe glasses function by adding or taking out a polarized light filter onto their lenses. With the filter on, light would travel to the normal region of the lens. Without the filter, light would go to the magnifying region rather.","domain":"optical_engineering"}
{"url":"https://citb.org.au/courses/open-registration-endorsement-optical-fibre-cabling/","date":"2023-12-02T15:20:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100427.59/warc/CC-MAIN-20231202140407-20231202170407-00811.warc.gz","language_score":0.7774260640144348,"token_count":103,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__267237410","lang":"en","text":"Open registration endorsement – optical fibre cabling\nICTCBL322 Install, test and terminate optical fibre cable on customer premises\n1. Prepare for installation of optical fibre cable\n2. Install, terminate and test optical fibre cable\n3. Remove fibre hazards from work area\n4. Document installation\nThis unit describes the skills and knowledge required to install and test optical fibre cable on a customer's premises for communications applications using a range of terminations that may include direct termination, fusion splicing and mechanical splicing.","domain":"optical_engineering"}
{"url":"http://inteccontrols.ca/announcements?division=Lighting%20Solutions","date":"2018-12-09T21:31:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823183.3/warc/CC-MAIN-20181209210843-20181209232843-00443.warc.gz","language_score":0.8994377255439758,"token_count":502,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__41042267","lang":"en","text":"Counter Day with Philips\nPosted on , Monday 3rd of December 2018\nJoin us at our Penticton branch on December 14th from 7:00- 10:00am for a Counter Morning!\nDon’t miss your chance to learn about the new Philips products available at your local E.B. Horsman & Son Branch!\nLED Lighting Guide - Fall/Winter Edition\nPosted on , Tuesday 6th of November 2018\nThe advancement of LED technology has led to the tremendous diversity of LED products and reduction of product costs. LED has become so versitile that we can now mimic traditional fixture envelopes, as well as, create new products with advanced optical powers.\nTo learn more, our LED Lighting Guide contains all you need to know about LED Lighting and the variety of products available at E.B. Horsman & Son.\nResidential Lighting Guide from Liteline\nPosted on , Thursday 27th of September 2018\nLooking for residential recessed lighting and LED solutions? Liteline specializes in residential and commercial lighting applications with innovative and easy to install product series: SlimLED, Luna and and Sigma and many more. Find your residential lighting solution in this guide:\nHadco’s MUL4 Path Light\nPosted on , Thursday 24th of May 2018\nThe MUL path light Family of low voltage luminaires features classic mushroom styling and a graceful appearance making them suitable for most applications. Designed as a spread light, these luminaires produce a uniform light pattern with no objectionable glare. Construction choices include aluminum or Solid brass stem die-cast brass. Finishes are available in antiqued verde, bronze, sienna, speckled stone, black and natural cast bronze. Energy saving LED is available to ensure even light distribution and long life.\n70 mm Modular Tower Lights\nPosted on , Thursday 17th of May 2018\nBanner’s new 70 mm TL70 tower light is a bright and attractive uniform light, now with the flexibility to assemble, change or add segments in the field. The larger diameter and higher intensity light make the TL70 an ideal solution for larger machines and bright plant environments. The TL70 tower light is available in both pre-assembled units and modular segments. There are five LED segment colors available with user-selectable solid ON, 1.5 Hz or 3 Hz flash rate. The audible alarm segment can be configured for pulsed, chirp, siren or continuous alarm.","domain":"optical_engineering"}
{"url":"https://maticmedia.co.uk/products/portable-displays.html?page=/dc_category.asp?accesscode=OC041114092&categoryId=23622323347","date":"2022-08-10T11:04:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571153.86/warc/CC-MAIN-20220810100712-20220810130712-00764.warc.gz","language_score":0.7382332682609558,"token_count":521,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__161534124","lang":"en","text":"Mini LED Flood Light - code LED-FLOOD-10W/LED-FLOOD-10W-RGB\nMini LED Floodlight available in RGB or white light\nMini LED Flood Light White - LED-FLOOD-10W\nMini LED Flood Light RGB - LED-FLOOD-10W-RGB\nColour Blast Accent LED - code LED-CW-BLAST/LED-RGB-BLAST\nColour Blast Accent LED available in white and RGB.\nColour Blast Accent LED White - LED-CW-BLAST\nColour Blast Accent LED RGB - LED-RGB-BLAST\nLED Downlight - code LED-5W-120D\nThis impressive LED downlight is ideal for creating the right mood and atmosphere within your display space. Install to create wells of lights to highlight your star products or employ more to flood your stand with 6000k cool white light.\nLED Downlight - LED-5W-120D\nLED Exhibition Light Single - code LED-EXHIB-ARM-B\nThe LED Exhibition light is the latest in LED technology and design.\nSpecifically designed to work in conjunction with THE Linear and Vector\nchannel; this latest design requires no extra fitting, just plugin and switch\nLED Exhibition Light - LED-EXHIB-ARM-B\nLED Flood Light Single - code LED-FLOOD-ARM-B\nThe LED Flood Light is the new stylish and economical way to illuminate a range of exhibition stands including Pop-ups, Formulate and a range of modular systems.\nLED Flood Light - LED-FLOOD-ARM-B\nLED Flood Light Double Kit - code LED-FLOOD-ARM-BDLK\nLED Flood Light - LED-FLOOD-ARM-BDLK\nLED Strip Light Single - code LED-STRIP-ARM-B\nThe LED Strip light has a unique wide head design feature, allowing for a wider spread of light, helping you illuminate more of your message. To add to this already unique feature the LED Strip light is still capable of producing up to 1200 lumens whilst still only consuming low energy levels.\nLED Strip Light - LED-STRIP-ARM-B\nLED Strip Light Double Kit - code LED-STRIP-ARM-BDLK\nLED Strip Light - LED-STRIP-ARM-BDLK\nLED Exhibition Light Double Kit - code LED-EXHIB-ARM-BDLK\nLED Exhibition Light - LED-EXHIB-ARM-BDLK","domain":"optical_engineering"}
{"url":"https://progameguides.com/call-of-duty/best-optic-attachments-in-modern-warfare-2/","date":"2023-11-30T01:47:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.15/warc/CC-MAIN-20231130000127-20231130030127-00644.warc.gz","language_score":0.8819565176963806,"token_count":604,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__71976224","lang":"en","text":"Optics are a universal attachment in Call of Duty: Modern Warfare 2. This means that once you unlock an optic, it will be available for use on every other gun in the game, except for Launcher and Melee weapons, of course. Out of the wide selection of optics present in Modern Warfare 2, we have listed the best ones for all ranges that you need to unlock first.\nBest Optics to use in Call of Duty Modern Warfare 2\nCronen Mini Pro\nThis is a perfect optic for close-quarters combat that you can equip on an AR, SMG, Handgun, or any other weapon of your choice. While there are several other close-range scopes in the game, the blue-dot Cronen Mini Pro offers the cleanest view of all. Other good alternatives are the SZ Sigma-IV yellow dot optic and the Cronen Mini Red Dot.\nDF105 Reflex Sight\nThis red-dot optic offers a clear vision similar to the Cronen Mini Pro but with a slightly bigger magnification than the latter.\nThe Schlager 4x is a 3.4x zoom optic that you can use on your ARs for mid to long-range engagements.\nVLK 4.0 Optic\nThe iconic VLK optic offers a slightly larger magnification of 4x but has thicker bezels than the Schlager scope.\nFORGE TAC Delta 4\nMoving on to the larger zoom optics for Marksman Rifles and Sniper Rifles, the first on our list is the FORGE TAC Delta 4. This optic offers a 5.5x magnification and an immensely clean reticle.\nLuca Bandera Scope\nThis is a clean, hybrid optic offering 3.7x and 8x zoom levels, which you can switch between. One downside of this optic is that there are no mildots on the crosshairs, which makes it comparatively difficult to adjust for bullet drop.\nSP-X 80 6.6x\nThe SP-X 80 is the perfect long-range Sniper Rifle scope with a clutter-free reticle and mildots that you can utilize to study the bullet drop if necessary. This optic is togglable between 6.6x and 11x magnification.\nFTAC Locus SP\nA great competitor to the SP-X 80 optic, the FTAC Locus SP offers 7x and 11x zoom levels. Since the magnification on both these optics is very similar, you can choose between them depending on which reticle you prefer more.\nFinally, the Drexsom Prime-90 is a great Sniper scope for players who like to use a thermal optic. It offers 7.5x magnification and is one of the cleanest thermal scopes in MW2.\nStay tuned to Pro Game Guides for more Call of Duty: Modern Warfare 2 content. In the meantime, head over to our article on How to unlock all MCPR-300 Attachments in MW2.","domain":"optical_engineering"}
{"url":"https://reliablemagazine.com/global-thermal-imaging-scopes-market-to-grow-at-cagr-of-roughly-10-9-over-2019-%C2%96-2024/28253","date":"2020-02-23T20:50:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145839.51/warc/CC-MAIN-20200223185153-20200223215153-00283.warc.gz","language_score":0.8772531747817993,"token_count":1541,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__97382069","lang":"en","text":"Thermal Imaging Scopes Market Report presents an in-depth assessment of the Thermal Imaging Scopes including enabling technologies, key trends, market drivers, challenges, standardization, regulatory landscape, deployment models, operator case studies, opportunities, future roadmap, value chain, ecosystem player profiles and strategies. The report also presents forecasts for Thermal Imaging Scopes investments from 2019 till 2024.\nThermal Imaging Scopes market research report includes a detailed segmentation of the Thermal Imaging Scopes market in Global by component, organization size, application, and industry. The report FLIR Systems,ATN,Meprolight,Sig Sauer,Yukon Advanced Optics,Armasigh,EOTech,Night Optics,Luna Optics,Trijicon Electro Optics,Others as the leaders operating in the Thermal Imaging Scopes market.\nThe worldwide market for Thermal Imaging Scopes is expected to grow at a CAGR of roughly 10.9% over the next five years, will reach 2990 million US$ in 2024, from 1780 million US$ in 2019, according to a new GIR (Global Info Research) study.This report focuses on the Thermal Imaging Scopes in global market, especially in North America, Europe and Asia-Pacific, South America, Middle East and Africa. This report categorizes the market based on manufacturers, regions, type and application.\nRequest for Sample PDF of Thermal Imaging Scopes Report at – https://www.360researchreports.com/enquiry/request-sample/14113141\nTarget Audience of Thermal Imaging Scopes Market 2019 Forecast to 2024 Market:\n- Manufacturer / Potential Investors\n- Traders, Distributors, Wholesalers, Retailers, Importers and Exporters.\n- Association and government bodies.\nOn the basis of the end users/applications, this Thermal Imaging Scopes market report focuses on the status and outlook for major applications/end users, consumption (sales), Thermal Imaging Scopes industry share and growth rate for each application, including:\nOn the basis of product, this report displays the production, revenue, price, Thermal Imaging Scopes market share and growth rate of each type, primarily split into:\n- Un-Cooled Thermal Imaging\n- Cryogenically Cooled Thermal Imaging\nGlobal Thermal Imaging Scopes market competition by Professional Key players, with production, price, revenue (value) and market share for each manufacturer; the top players including:\n- FLIR Systems\n- Sig Sauer\n- Yukon Advanced Optics\n- Night Optics\n- Luna Optics\n- Trijicon Electro Optics\nInquire more or share questions if any before the purchase on Thermal Imaging Scopes report – https://www.360researchreports.com/enquiry/pre-order-enquiry/14113141\nThermal Imaging Scopes Market 2019 Forecast to 2024 Market Segment by Regions, regional analysis covers\n- North America (USA, Canada and Mexico)\n- Europe (Germany, France, UK, Russia and Italy)\n- Asia-Pacific (China, Japan, Korea, India and Southeast Asia)\n- South America (Brazil, Argentina, Columbia etc.)\n- Middle East and Africa (Saudi Arabia, UAE, Egypt, Nigeria and South Africa)\nThermal Imaging Scopes Market Overview: –\nThermal imaging rifle scopes have been used with great effectiveness in military and tactical situations, and these scopes have also proven to be an advantageous asset for hunters, especially when hunting boar. The following guide will go over everything you need to know to purchase a thermal scope on the civilian market.Thermal imaging is a lucrative tool for hunters because it allows the observer to not just see their target in the dark of night, but to actually witness the ambient heat that targets give off at any moment in time. This ambient heat can be fluorescently colored or simply display as a brighter animal shaped figure on a dark background. In any situation, this technology makes hunting live prey exceptionally easier.The main market drivers are the development of the civil market.The surveillance application segment is expected to dominate the market from 2016 to 2021. Thermal imaging cameras are primarily deployed by military and defense for border patrolling and border security. These cameras are being increasingly used for surveillance in airborne, maritime, and land systems. Furthermore, environmental monitoring application segment is expected to gain traction in the next five years. The increasing use of Thermal Imaging Scopes in the automotive sector to reduce the risks in Forest fire prevention, especially during the night, is one of the major reasons for the growth of thermal imaging market in this application.The worldwide market for Thermal Imaging Scopes is expected to grow at a CAGR of roughly 10.9% over the next five years, will reach 2990 million US$ in 2024, from 1780 million US$ in 2019, according to a new GIR (Global Info Research) study.This report focuses on the Thermal Imaging Scopes in global market, especially in North America, Europe and Asia-Pacific, South America, Middle East and Africa. This report categorizes the market based on manufacturers, regions, type and application.\nPurchase Thermal Imaging Scopes report (Price 3480 USD for a single-user license) – https://www.360researchreports.com/purchase/14113141\nThis Thermal Imaging Scopes Market Research/analysis Report Contains Answers to your following questions\n- Which Manufacturing Technology is Used for Thermal Imaging Scopes? What Developments Are Going On in That Technology? Which Trends Are Causing These Developments?\n- Who Are the Global Key Players in This Thermal Imaging Scopes Market? What’s Their Company Profile, Their Product Information, Contact Information?\n- What Was Global Market Status of Thermal Imaging Scopes Market? What Was Capacity, Production Value, Cost and PROFIT of Thermal Imaging Scopes Market?\n- What Is Current Market Status of Thermal Imaging Scopes Market? What’s Market Competition in This Industry, Both Company, and Country Wise? What’s Market Analysis of Thermal Imaging Scopes Market by Taking Applications and Types in Consideration?\n- What Are Projections of Global Thermal Imaging Scopes Market Considering Capacity, Production and Production Value? What Will Be the Estimation of Cost and Profit? What Will Be Market Share, Supply and Consumption? What About Import and Export?\n- What Is Thermal Imaging Scopes Market Chain Analysis by Upstream Raw Materials and Downstream Industry?\n- What Is Economic Impact On Thermal Imaging Scopes Market? What are Global Macroeconomic Environment Analysis Results? What Are Global Macroeconomic Environment Development Trends?\n- What Are Market Dynamics of Thermal Imaging Scopes Market? What Are Challenges and Opportunities?\n- What Should Be Entry Strategies, Countermeasures to Economic Impact, Marketing Channels for Thermal Imaging Scopes Market?\nBrowse Thermal Imaging Scopes Market related details of TOC @ https://www.360researchreports.com/TOC/14113141,TOC\n360 Research Report is a credible source for gaining the market research reports that will exponentially accelerate your business. We are among the leading report resellers in the business world committed to optimizing your business. The reports we provide are based on research that covers a magnitude of factors such as technological evolution, economic shifts and a detailed study of market segments.\nName: Ajay More\nEmail: [email protected]\nOrganization: 360 Research Report\nPhone: +1424 253 0807/ +44 203 239 8187","domain":"optical_engineering"}
{"url":"https://www.ledlightodf.com/en/welding-clamps/98-welding-clamb-junction-box-2wire-3wire-5wire.html","date":"2020-02-20T14:51:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144979.91/warc/CC-MAIN-20200220131529-20200220161529-00291.warc.gz","language_score":0.737865149974823,"token_count":263,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__60980265","lang":"en","text":"B22 to E14 Adapter B22 convert to E14\nGU10 LED spotlight 8-30V 5W dim This GU10 led spotlight can replace the...\nInbouwspot met LED G20\nBA15 Bayonet led bulb 5 Watt Bayonet led bulb BA15D | B15D lamp base....\nLamp Adapter E27 convert to E14 lamp socket This lamp adapter convert...\nLamp Adapter Convert E27 to B22\nG9 led light 5W 5600\nLamp Adapter E14 convert to G9 lamp base\nBuilt in spot with replaceable LED for more durablity\nAdapter Bayonet B22 convert to B15 bayonet lamp base\nWelding Clamb Welding clamb 2 wire Welding...\nWelding clamb 2 wire\nWelding clamb 3 wire\nWelding clamb 5 wire\nFor diameter wire ＜ 3mm\nReference: 24 Volt MR16 LED lamp T12\nMR16 LED spot T12 24 Volt 24 Volt MR16 LED spot T12 MR16 LED spot 24 Volt LED bulb for built-in spot. You can use the MR16 led spot for built-in spot as boat led lighting, trailer led lighting, home led lighting, office led lighting and more.","domain":"optical_engineering"}
{"url":"https://beaver-design.com/best-night-vision-driving-glasses/","date":"2021-11-29T19:56:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358842.4/warc/CC-MAIN-20211129194957-20211129224957-00344.warc.gz","language_score":0.8510647416114807,"token_count":3084,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__166392682","lang":"en","text":"As Seen On TV Battle Vision Night Vision Glasses for Driving by BulbHead – Amazing Night Driving Glasses Protect Eyes From Blinding Headlight Glare – Green Lenses Enhance Clarity – Flexible Frames\n- GLASSES FOR DRIVING: oncoming headlights have blinding glare. Slide on a pair of Night Vision Glasses, part of the BattleVision Sunglasses line to block the harsh glare so you can see clearly.\n- GREEN LENS NIGHT GLASSES: our amazing green lenses reduce glare from oncoming traffic so you see everything on the road to help keep you and others safe.\n- NEVER BE AFRAID TO DRIVE AT NIGHT AGAIN: driving at night is scary. But when you wear Night Vision Glasses, you’ll be able to see the road and your surroundings great, restoring your confidence to drive at night again!\n- GREAT FOR INCLEMENT WEATHER: when it’s raining or foggy out, Night Vision Glasses are a must. You’ll see with amazing clarity to help keep you driving safely.\n- REINFORCED FRAMES: our reinforced frames with memory have unrivaled flexibility. Night Vision glasses are built atomic tough to survive the daily abuse you throw at them. The frames snap back into shape!\n- UNISEX DESIGN: no matter your gender, Night Vision Glasses will look great on you! Our stylish, yet functional glasses fit everyone.\n- FREE BONUS PAIR: glasses easily get misplaced. That’s why we’ve included a second bonus pair so you’ll always keep your eyes protected.\n- ONE-SIZE-FITS-MOST: Night Vision Glasses fit almost all adult heads!\n- INCLUDES 2 pairs of BattleVision Night Vision Glasses\nNight Vision Glasses for Driving, Anti-Glare Polarized, Night Driving Glasses for Men & Women, Yellow-Tinted with Hard Case (Night Vision/Black)\n- THE BEST SOLUTION FOR NIGHTTIME DRIVING – these night vision glasses feature an advanced HD technology that allows you to see clearly without straining your eyes for a safe ride. The PC frame with rubber finish ensures great fit, so you can comfortably wear your driving glasses even for long routes.\n- GLARE REDUCTION FOR SAFE DRIVING – Oncoming headlights and bright road lights are not only uncomfortable to see, but they can also be extremely distracting and dangerous. Thanks to their yellow tinted lenses, these glasses act as night vision goggles to reduce glare, reflection and their negative effects while improving and brightening up the visual area.\n- EXCELLENT QUALITY POLARIZED LENSES – The +0.74mm Polarized lenses with Revo coating eliminate intense reflected light, reducing glare and distracting reflections. As these polarized glasses work great against blinding sun, they double as day and night glasses too, for improved clarity 24/7\n- DURABLE DESIGN & BONUS EVA CASE – The high quality PC black frame and temple features a rubber finish and non-slip effect to keep your anti-glare glasses in place. Plus, the night driving glasses for women & men, come with a nice black case to keep them protected from scratches & damage\n- ORDER THE BEST NIGHT GLASSES WITH CONFIDENCE – Join the community of people that have trusted Optix 55 night view glasses to improve their eyesight and enjoy a comfortable and above all safe night driving experience! Backed up by a cast-iron 30-Day Money Back Satisfaction Guarantee, you have nothing to worry about. Your safety comes first – Order Yours Today!\nFit Over HD Day / Night Driving Glasses Wraparound Sunglasses for Men, Women – Anti Glare Polarized Wraparounds (Night Vision Black)\n- PRACTICAL COMFORT: Comfortable and durable, these one-piece specs have side lenses for complete coverage. They also have holes on the sides to thread a chain.\n- PROTECTIVE CASE: Also included with these wraparound sunglasses is an Optix 55 branded microfiber pouch & holder with a drawstring that doubles as a cleaning cloth.\n- PERFECT FOR THE CAR: Driving your vehicle with the sun in your eyes is dangerous. Have these in your glove to slip over your prescription eyewear and drive comfortably & safely\n- A TRENDY ACCESSORY: Featuring matte black frames with round edged rectangular lenses- both polycarbonate- these frames are stylish and functional for men and women\nUV400 Night Vision Glasses Fit Over Prescription Eyewear Wrap Arounds Sunglasses Driving Protection\n- ►HD NIGHT VISION LENSES: UV400 yellow tinted lens with special anti-reflective coating, effectively reduce glare caused by oncoming intense headlights and bright streetlights, enhance night clarity and alleviate eye fatigue, make night driving safer.\n- ►FIT OVER GLASSES: Night driving glasses can be easily worn on existing prescription eyeglasses (Lenses Height within 1.77inch AND Frame Length within 5.59inch), such as Rx glasses, reading glasses, perfect for those who with myopia or presbyopia\n- ►WRAP AROUND DESIGN: Night vision glasses with excellent ergonomic wrap-around design to fit the eyes tightly, oversized shades provide greater coverage to protect your eyes and face, side lenses provide better peripheral vision and glare protection\n- ►MULTI FUNCTION: Anti-glare night sight glasses provide greater clarity in fog, cloudy, rain, dark night and other low-light conditions, improve night vision performance, ideal choice for night driving, motorcycles, cycling, running, walking, fishing and other outdoor activities\n- ►30 DAYS GUARANTEED : In case any broken problem happens, contact the seller of SHEEN KELLY without hesitation to solve the problem until satisfaction. You have no risk to try and we will provide you the best service!\nOntel Night Sight | HD Polarized Night Vision Driving Sunglasses | Men and Women, Anti Glare, Scratch Resistant, Stylish\n- NIGHT DRIVING GLASSES: Driving at night becomes safer with these night vision driving glasses featuring anti-reflective coating that dulls harsh bright lights & headlights.\n- HD DRIVING GLASSES: These eyeglasses reduce glare & enhances clarity while driving. Features side lenses for peripheal vision. The one size fits all driving lenses fit right over prescription glasses.\n- POLARIZED LENSES: These glasses also help with driving in the rain! Anti-glare glasses also work with LED and halogen lights. Perfect for dusk, dawn, night & dark cloudy days.\n- AS SEEN ON TV: Ontel Products are composed of many individual brands each serving customers in different ways. Try a variety of products from some of our brands like Pillow Pets, Miracle Socks, Iron Gym, Miracle Bamboo Cushion, Dream Tents, & more.\n- INNOVATIVE WITH ONTEL: Since 1994, we’ve been developing, marketing, & distributing some of the most innovative consumer products on the market. From toys, to fitness equipment & household items, we love bringing new ideas into the world.\nKastKing Polarized Night Vision Driving Glasses for Men and Women,Angular Wrap Design,Yellow Lens\n- KEY FEATURES – Enhanced night vision polarized eye-glasses – Various Style – Reduced glare and eye strain – Lightweight, durable, & comfortable frames – Ideal for night driving, fishing, shooting, hunting, computer work, or any low light conditions\n- ENHANCED NIGHT VISION – KastKing yellow lenses increase visual clarity and depth perception for improved night and low light vision, rainy or foggy conditions. KastKing 1.0mm lenses are 35% thicker than standard eyewear for greater protection\n- REDUCED GLARE & EYE STRAIN– KastKing Polarized lenses help reduce glare caused by reflected light to improve vision and comfort. KastKing yellow lenses also block blue light that helps reduces eye fatigue and eye strain\n- SUPERIOR FRAMES – Made of Grilamid material commonly used by the military and in medical applications, KastKing frames are lightweight, extremely flexible, and heat and UV resistant. The ultra-lightweight material offers a very comfortable fit\n- PROTECT YOUR EYEWEAR – KastKing includes a molded custom hard case for storage and a custom Prym1 Camo microfiber pouch which can be used for cleaning as well as storing your sunglasses. To avoid lens scratches and lens coating damage, clean your lenses with a clean microfiber cloth or lint free cloths and fresh warm water. Never dip them in saltwater or dry with a paper towel.\nNight Driving Glasses / Polarized Sports Night Vision Glasses – Anti glare | UV 400 Protection | Night Driving | Fishing | Outdoor Sport | Unisex Eyewear… (Triangle Case)\n- 【100% POLARIZED YELLOW LENSES】- Polarized lenses reduce glare from the headlights of other vehicles, pavement, and other reflective surfaces by filtering light coming from different angles. These special lenses make colors and objects appear clearer, so you can see every detail of the open road. Helpful for people who are sensitive to light or need to drive for long time at night, e.g. truck driver\n- 【PROTECTING YOUR EYES AGAINST UV DAMAGE】 – Driving Glasses with Anti-glare and UV400 protection to reduce surface reflections and block both UVA and UVB radiation, protection against 99.9% of harmful UV rays, keeping your eyes healthy when you go out.\n- 【STYLISH AND COMFORTABLE】- We design our glasses with the concept of both safety and comfort so that you can stay focused on the road and not bothered by adjusting glasses any more. Updated black silicone nose pads keep your nose from pressure and bring you a comfortable wearing experience.\n- 【MODERN and COOL DESIGN 】- Stylish and Rimless this Polarized Glasses are perfect choice for outdoor activities such as sport, walking, running, cycling, hiking, driving, travelling and suitable as high Fashion Accessory and daily wear all year round .\nBircen HD Night Vision Driving Anti-Glare Glasses for Men Women Al-Mg Metal Frame Rainy Safe Polarized Fashion Sun glasses\n- Bircen night vision sunglasses : The glasses with POLARIZED yellow lens block headlight glare and provide you a clearer view in the dark nights, rainy or foggy days, make your driving safer and more convenient.\n- Adjustable Al-Mg frame : High Elasticity and Durable, flexible arms and nose pad for different face types. High-strength anti-breakage resin lens for safe glasses. Our lenses are ultra-light and ultra-thin.\n- BIRCEN HD Night Vision Night Lens : Polarized yellow lenses reduce night driving glare and eye strain, enhance night vision, improve color clarity and optical definition, High-definition lens gives you a natural & clear vision. Protect your eyes from harsh environmental elements, such as unexpected reflections, glaring headlights, and harmful rays of the sun.\n- BIRCEN anti glare night driving glasses allow maximum light to pass through to limit distortion. polarized yellow sunglasses for men safely protect your eyes from harmful Blue Light. Metal frame construction built to ensure no damage after falling and bending, plus nightguide polycarbonate, shatterproof, yellow-tinted night tac glasses with blue light neutralization, protective safety shades for cycling / motorcycle nite drive.\n- 30 days refund service – try risk-free Bircen sunglasses and return your sunglasses within 30 days for a full refund if you are not satisfied with any reason. You will also be covered over a limited life cycle, fully assured of defects in process and materials for the original owner.\nSOJOS Night Vision Glasses for Driving Women Polarized Anti Glare UV Protection Havana Frame SJ2111 with Black Frame/Night Vision Lens\n- HIGH-DEFINITION UV400 TAC POLARIZED LENSES – SojoS’s HD TAC polarized lenses can filter out sunlight reflected glare, and protect your eyes from long-term damage by blocking 100% of harmful UVA and UVB rays.\n- HIGH-QUALITY MATERIALS – These SojoS retro square polarized sunglasses are made of high-quality plastic frames, UV400 lenses, solid metal hinges, all the details ensuring you a long time using. They are suitable for women and suitable for any climate and weather conditions.\n- PERFECT ALL ROUNDER – These SojoS sunglasses are the perfect choice for outdoor sports and activities such as driving, shopping, traveling, hiking, and are suitable as a high fashion accessory and daily wear all year round.\n- PRODUCT DIMENSION – Lens Width: 57mm(2.24inches) | Lens Height: 42mm(1.65inches) | Temple Length: 135mm(5.31inches) | Nose Bridge: 17mm(0.67inches).\n- GIFT IDEAS PACKAGE – Sunglasses*1, microfiber pouch*1, microfiber glasses cleaning cloth*1, glasses box*1. It is also a gift packaged ready, making it a wonderful yet practical gift idea for friends and family!\nNight Vision Driving Glasses Polarized Anti-glare Clear Sun Glasses Men & Women Fashion(Floral)\n- √.Anti-glare driving glasses help reduce light that causes eye strain, means that these night driving glasses can block sharp glare from headlights, street lights, and traffic for ultra-clear vision, improved driving focus.\n- √.HD POLARIZED YELLOW LENSES – Yellow Lens Glasses for Night Vision Lens is perfect for usage by driving. Especially at rainy day / foggy / night.\n- √.How to tell if your glasses are polarized? We have a polarizing test card. When you wear our glasses, you can see the hidden picture, which indicating that the lenses are Polarized.\n- √.SUPER COMFY TO WEAR – lightweight simple design, Bokewy will remain scratch-free for a long time. The pc frame is lightweight, sturdy, and will grip the lenses snugly!\n- √.100% MONEY BACK GUARANTEE & LIFETIME WARRANTY – 90 Day refund and lifetime Warranty on Frame & Lens. ensures this will become your favorite no-risk purchase, give you a best shopping experience.\nAs an Amazon Associate I earn from qualifying purchases.","domain":"optical_engineering"}
{"url":"https://www.collinsryan.photography/me-and-tokina","date":"2023-03-26T17:39:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296946445.46/warc/CC-MAIN-20230326173112-20230326203112-00486.warc.gz","language_score":0.9232487082481384,"token_count":247,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__251850704","lang":"en","text":"top of page\nMe. Just in a brief.\nCollins Ryàn -- L'artiste. An artist, professional photographer of many disciplines, and a digital and manual graphics savvy. Do my art for combined 25 years.\nLiving in Down Under New Zealand, but have seen the world. I got my international recognition for my art and am a proud Global Brand Ambassador for Tokina-Kenko, the superb renowned professional camera and optics company.\nTokina as a part of Kenko Tokina Co., Ltd. has an optical manufacturing tradition that dates back from 1950s. Tokina specializes in high-quality lenses for today’s digital single lens reflex (DSLR) and mirrorless cameras.\nA comprehensive optical manufacturer, Kenko Tokina Co., Ltd. manufactures everything from binoculars and microscopes to filters and a full range of photographic and optical accessories. It one of the largest OEM speciality binocular manufactures supplies one of the world's leading brands. In the field of camera products and telescopes, it holds the number one share in Japan and many countries throughout the world. Kenko company is also a parent company of several other camera accessory companies.\nbottom of page","domain":"optical_engineering"}
{"url":"http://covector.blogspot.com/2008/01/3d-point-sensor.html","date":"2018-07-15T20:46:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676588972.37/warc/CC-MAIN-20180715203335-20180715223335-00373.warc.gz","language_score":0.8186436295509338,"token_count":315,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__267360396","lang":"en","text":"The position of a point in space can be computed from two views using triangulation:\nOf course, to get a reasonably accurate 3D reconstruction (modulo scale) we need the parameters of the stereo pair (focal lengths and relative position and orientation of the cameras). Otherwise the estimated 3D points may suffer unacceptable projective deformation.\nOne of the most wonderful results of multiview geometry is that the calibration parameters can be inferred automatically just from the views of a small number of arbitrary 3D points (in unknown positions).\nThe easyVision example program \"demostereo\" illustrates this idea using two webcams. The interest point can be detected by a simple heuristic on the hsv color space. And a good estimation of position and velocity is obtained by a Kalman filter. First we adjust the parameters of the region detector and check that the tracker works:\nIf the point \"stops\", it is stored. When the set of points produces a promising estimation of the stereo geometry, the camera parameters are updated in the 3D view:\nSubsequent estimations should be progressively closer to a similar reconstruction.\nNow we can register points in the desired positions. For example, here we mark something like a box:\nNote that auto-calibration from a single fundamental matrix is possible here because the camera model has only one internal unknown parameter, the focal distance.\nThis program shows in a very attractive way the basis of stereo vision. And this kind of 3D point capture method can also be useful in some applications.","domain":"optical_engineering"}
{"url":"https://opticsaddict.com/low-light-scope/","date":"2024-04-19T21:58:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817455.17/warc/CC-MAIN-20240419203449-20240419233449-00248.warc.gz","language_score":0.9132305383682251,"token_count":3220,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__13297354","lang":"en","text":"Shooting doesn’t always happen in perfect lighting conditions, especially if you’re a big game hunter. To make an ethical shot on an animal when the sun is beginning to rise, or just about to set, takes a special kind of scope. After all, you can’t hit what you can’t see.\nThe best low light scope will provide bright, clear images, even when the sun begins to fade. However, knowing which scope to choose can be hard, especially when you’re shopping under the bright fluorescent lights of a showroom floor.\nIf you aren’t sure what to look for, we’ve got you covered. This article will explain what makes some scopes seem brighter in low light. We even share a list of our favorite low light models.\nIf you don’t have time for the details, check out the list below for the best rated low light scope:\n- Leupold Mark 5HD 5-25x56mm\n- Vortex Optics Diamondback Tactical FFP 4-16x44mm\n- Trijicon AccuPower 4.5X-30X-45mm\n- Nightforce Optics NXS 5.5-22x56mm\n- Nikon Buckmasters II 3-9x40mm\n- Zeiss Conquest V6 5-30x50mm\n- Bushnell Banner Dusk & Dawn 3-9x40mm\n- EOTECH Vudu 1-6x24mm Riflescope\n- Swarovski Z3 3-10×42 Riflescope\n- TenPoint HCA-09811 RangeMaster Pro 1.5-5×30 Crossbow Scope\nTable of Contents\n- What Makes a Good Low Light Scope?\n- Best Low Light Scope on the Market Reviews\n- 1 Leupold Mark 5HD 5-25x56mm\n- 2 Vortex Optics Diamondback Tactical FFP 4-16x44mm\n- 3 Trijicon AccuPower 4.5X-30X-45mm\n- 4 Nightforce Optics NXS 5.5-22x56mm\n- 5 Nikon Buckmasters II 3-9x40mm\n- 6 Zeiss Conquest V6 5-30x50mm\n- 7 Bushnell Banner Dusk & Dawn 3-9x40mm\n- 8 EOTECH Vudu 1-6x24mm Riflescope\n- 9 Swarovski Z3 3-10×42 Riflescope\n- 10 TenPoint HCA-09811 RangeMaster Pro 1.5-5×30 Crossbow Scope\n- Final Thoughts\nWhat Makes a Good Low Light Scope?\nWhen it comes to low light performance, not all scopes are created equal. Here are a few key features that help some scopes seem brighter in murky light.\nThe job of the objective lens is to let light into the scope. It works in much the same way that a window lets light into a room. Generally speaking, a room with larger windows will be brighter than one with small windows. The same is true of a scope with a larger objective lens. In the world of riflescopes, the larger the objective lens, the brighter the images will be (usually).\nHowever, the objective lens doesn’t do all that work alone. Other features come into play that help the objective lens do its job. A scope with a small 44mm objective may be brighter than one with a massive 55mm objective lens, especially if that smaller scope is made with premium glass and multiple anti-reflective coatings.\nA massive objective lens can be a hindrance in the field. A riflescope with a large objective lens will be heavy and bulky, which can be a major hindrance when hunting thick woods or remote backcountry locations. The key to successful shooting is to choose a scope with an objective lens that is large enough to provide a bright sight picture, but not so large that it inhibits your ability to move in the woods.\nAnti-reflection coatings work like magic when it comes to brightness. The right coatings can almost double the scope’s brightness, and unlike large objective lenses, lens coatings add zero weight or bulk to your optic.\nThese thin coatings are made from rare earth minerals and reduce reflection through wave phase cancellation. If that sounds complicated and “science-y” that’s because it is.\nHere is a basic explanation of how anti-reflective coatings work for us non-sciency shooters.\nWhen light hits glass, only about 96 percent of it passes through. The other 4 percent gets bounced around off the surface. While 4 percent may not sound like a whole lot, consider the fact that some scopes have 6 to 10 glass lenses. You lose at least 4 percent each time the light hits a piece of glass. It doesn’t take a mathematical genius to realize you can lose a lot of light as it makes its way through those glass surfaces before it reaches your eye.\nEach layer of anti-reflective coating can cut the amount of light that bounces off the glass by half. Multiple layers can reduce reflective light loss to less than 1/10th of a percent. For the best low light performance, you’ll want an optic with fully multi-coated lenses.\nHigher magnification levels can make a scope appear brighter. When you look at a distant object through a scope, the magnified image will appear brighter than it does when you look at it with the naked eye. However, this isn’t the scope working magic. If you moved closer to an object in dim light, it would naturally appear brighter due to your physical proximity. The scope works the same way by taking you visually closer to the object rather than physically closer.\nBest Low Light Scope on the Market Reviews\n1 Leupold Mark 5HD 5-25x56mm\nThe Leupold Mark 5HD delivers some of the clearest, brightest images you’ll ever see through a scope. It features premium quality glass and a massive 56mm objective lens that both excel in low light shooting conditions. The housing of the Mark 5HD is also filled with a proprietary blend of inert gases which helps prevent fogging and reduces internal image distortion.\nFeaturing Leupold’s Twilight Max HD Light Management System, the Mark 5HD combines glass quality and patented anti-reflective coatings to reduce glare by up to 90 percent. This scope has stunning low light brightness and clarity, which can add valuable minutes of shooting time, particularly around dawn and dusk when deer are most active.\nThe Mark 5HD also has an illuminated FFP reticle. It stays true through the optic’s entire magnification range and remains clearly visible in every lighting condition.\n2 Vortex Optics Diamondback Tactical FFP 4-16x44mm\nThis awesome riflescope from Vortex provides hunters and tactical shooters with a quality low light optic for under $500.\nThe Diamondback Tactical FFP features extra-low dispersion (ED) glass and fully multi-coated lenses. The result is maximized light transmission, crisp color fidelity, and razor sharp clarity, even in dim light.\nLong range shooters will love the EBR-2C glass-etched reticle (in your choice of MOA or MRAD). This highly detailed reticle allows you to make easy and accurate windage and holdover corrections.\nThe Diamondback is built with a single piece 30mm tube and is o-ring sealed. This construction allows the scope to reliably withstand harsh recoil, making it a great option for hard-hitting calibers or your favorite muzzleloader.\n3 Trijicon AccuPower 4.5X-30X-45mm\nLike most Trijicon optics, the AccuPower riflescope is insanely durable. Constructed with a rugged, aircraft grade aluminum housing, this scope is built for harsh and demanding shooting environments.\nThe AccuPower features a high-quality lens system with full multilayer coatings and a generous 45mm objective lens. These features combine to provide a nice, clear sight picture, even at twilight.\nShooters will also love the electronic illuminated reticle that is perfect for low-light and no-light conditions. Powered by a single lithium battery, the AccuPower has an easy-to-use brightness adjustment dial that allows you to choose between eleven different brightness settings. It even has a convenient off setting between each brightness level for easier adjustment.\n4 Nightforce Optics NXS 5.5-22x56mm\nNightForce Optics defines low light shooting, and their NXS riflescope is one of the company’s top models. This one is built for extended long range shooting, and with the right shooting skills, ammo, and rifle, this scope is completely capable of reaching out beyond 2000 yards.\nThe NightForce NXS has impeccable glass quality and full multilayer coatings. It also has a substantial 56mm objective lens. These features combine to produce outstanding image clarity and sharp color contrast. The NXS has amazing brightness and performs like a rock star in low light.\nThe NXS features a full 100 MOA of elevation adjustment, an easy 50-yard parallax adjustment, and a helpful ZeroStop elevation feature.\n5 Nikon Buckmasters II 3-9x40mm\nYou can probably tell by the name that this riflescope from Nikon was designed for serious deer hunting. Perfect for the budget conscious shooter, the Buckmasters II comes in at just under $200 and provides a ton of low light performance for the money.\nThe Nikon Buckmasters II features fully multi-coated lenses and a respectable 40mm objective lens. Nikon uses their own proprietary coatings to deliver 92 percent light transmission for an impressively bright image, even in dusky light.\nHunters will also appreciate the scope’s generous eye relief, positive-click turrets, and reliable fogproof performance. The scope also features Nikon’s exclusive BDC reticle designed with mil-dot, see-through circles. The open design of the BDC marks provide a full sight picture at short ranges while still allowing you to adjust for holdover on those longer shots.\n6 Zeiss Conquest V6 5-30x50mm\nZeiss is famous for producing some of the best optical equipment in the world, and when you look through their Conquest V6 riflescope, it’s easy to understand why. This high end scope features cutting-edge fluoride lenses. All glass surfaces are covered with six layers of Zeiss’s patented T Star coatings. The result is 92 percent light transmission and superior bright, clear images, even in low light.\nThe Conquest V6 is made to endure serious weather conditions. It is built with both a hard outer shell and a hard core. It also has a high-quality seal to protect the interior of your scope from rain, snow, and ice.\nThe Zeiss Conquest V6 works well as a varmint scope, although it works just as well for target shooting and hog hunting.\n7 Bushnell Banner Dusk & Dawn 3-9x40mm\nThe Bushnell Banner Dusk & Dawn riflescope was designed to add precious minutes of shooting time at the start and end of the hunting day. With DDB (Dusk & Dawn Brightness) multi-coated lenses, this scope provides impressive clarity and brightness at times when trophy game are more likely to be on the move.\nAll optics in the Bushnell Banner series feature fast-focus eyepieces and 1/4-MOA fingertip windage and elevation adjustments. Turrets provide audible clicks, allowing for the most precise adjustments possible.\nBuilt for rugged use in the great outdoors, the Banner Dusk & Dawn scope is built with quality materials and is 100 percent fogproof and waterproof. Best of all, with a price tag well under $300, this scope provides low light performance that won’t break the bank.\n8 EOTECH Vudu 1-6x24mm Riflescope\nIf you’re a fan of the popular AR-15 rifle, you’re probably familiar with EOTech’s high-quality holographic sights. However, if you want to maximize the low light shooting capabilities of your modern sporting rifle, but don’t want to rely on an NVD (night vision device), EOTech’s Vudu is the better tool for the job.\nThe Vudu variable power riflescope features crystal clear XC high-density glass. The glass is fully multi coated for glare reduction, incredible light transmission, and a surprisingly bright sight picture, even in low light.\nThe Vudu also features EOTech’s patented Speed Ring reticle, which is highly useful for both CQB and long range shooting. The reticle is illuminated for better visibility in near dark conditions.\nBuilt to handle rough use and harsh environments, this 1-6x scope is as tough as your AR. Constructed from a single piece of aircraft-grade aluminum with a hard anodized exterior finish, the Vudu can handle bumps, thumps, and drops without batting an eyelash.\n9 Swarovski Z3 3-10×42 Riflescope\nSwarovski Optik is known for its incredible glass quality. The Z3 is one of their most affordable options, however, even this budget scope (priced well under $1000) has image quality that will completely knock your socks off.\nThe anti-reflective lens coatings on high-quality glass provide maximum light transfer (an impressive 90 percent) for clear images in low light. For daytime shooting, the scope has an internal microstructure surface which prevents residual reflections and provides better clarity in bright sunlight.\nThe Z3 features a lightweight, streamlined body design that makes it easy to maneuver in thick woods or the limited space of a ground blind or treestand. Hunters will also appreciate the scope’s generous field of view, ample eye relief, and simple Plex second focal plane (SFP) reticle.\n10 TenPoint HCA-09811 RangeMaster Pro 1.5-5×30 Crossbow Scope\nRifles aren’t the only weapons used for low light shooting. If a crossbow is more your speed, this awesome crossbow scope for low light from TenPoint makes the perfect hunting partner.\nThe TenPoint RangeMaster Pro crossbow scope features fully multi-coated lenses designed to maximize light transmission. This makes it a great option for crossbow hunting during the hours when whitetails are most likely to wander.\nThis high-quality optic has an etched-glass illuminated reticle for maximum visibility in any lighting condition. You can choose from five different brightness intensities and red or green illumination to suit your needs. The reticle is designed with three duplex crosshairs, four dots, and a triangle, all calibrated for arrow drop compensation.\nIf you need to make accurate shots in low light conditions, any of the optics on our list will help you achieve that goal. However, there is more on the line than accuracy when shooting in darker conditions. If you can’t see clearly, making that shot can be dangerous. You should never shoot what you can’t see. The best low light scope allows you to shoot responsibly (as well as accurately) when darkness falls.","domain":"optical_engineering"}
{"url":"https://visiontechamerica.com/blogs/newsletter/boyo-vtcrh1-vtcrh2-on-12-volt-news-com","date":"2023-11-29T15:42:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100112.41/warc/CC-MAIN-20231129141108-20231129171108-00452.warc.gz","language_score":0.8638827204704285,"token_count":371,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__313780508","lang":"en","text":"FULLERTON, CA (2.12.2021) – Vision Tech America, Inc. believes in providing customers with the state-of-the-art technology in automotive engineering with the best possible prices to modernize vehicles.\nIn this regard, BOYO has unveiled the VTCRH1 and VTCRH2 models. These two models are 2.4 GHz Wireless AHD Vehicle Backup Camera Systems with 5” IPS LED Monitor and Heavy-Duty Backup Cameras.\n“Our new VTCRH series are high-end AHD wireless systems for RVs, Trucks, Boat and Horse Trailers. As both models come with magnetic camera mount with built-in rechargeable battery, users can easily install this wireless camera without any hard wiring. This new system will assist anyone to drive and park safely with confidence whether in a RV or pulling a trailer” stated Richard Hong, VP Sales.\nKey Product Features:\n• 720P high-definition camera and monitor for clear image.\n• 2.4GHz 700’ long range connectivity between a camera and the monitor for reliable\n• 18 Hour battery powered camera with strong magnetic mount for easy installation and\nportability (between trailers).\n• Heavy-duty camera with IP68 waterproof housing for harsh weather conditions and IR\nlight for night vision.\n• Monitor with parking guidelines on/off switch, reverse/non-reverse switch, sleep mode\nand trigger lines to switch between cameras.\n• Monitor accessories: detachable monitor sunshade, cigarette lighter adapter, dashboard\nand windshield monitor mount.\n• Camera accessories: battery charger.\nThe VTCRH1 features 1 camera and the VTCRH2 features 2 cameras and both models are shipping now.\nVisit www.visiontechamerica.com for more.","domain":"optical_engineering"}
{"url":"http://www.rheothing.com/2008/08/accelerated-aging-getting-bad-data-even.html","date":"2023-12-06T04:04:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00648.warc.gz","language_score":0.9670155644416809,"token_count":205,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__133568024","lang":"en","text":"UV light is a very common culprit in degradation of plastics as these photons have enough energy to cause problems if they are absorbed by the polymer. E = h c/l so shorter wavelengths have higher energy. So the shorter the wavelength, the better, right?\nUnfortunately this is also not correct for two reasons. First, the shorter wavelengths become increasingly rarer on the surface of the earth thanks to all the ozone up high. So going with lots of really short wavelength is unrealistic. But secondly, different plastics react differently to the spectra. A plot of degradation rate vs. wavelength will show a peak and it is seldom at the shortest wavelengths. This plot is known as the activation spectra (see Andrady's article for a good review) and is key to running good tests. Polypropylene for example, has a peak at about 350 nm, much higher than other plastics.\nUPDATE: The formula for energy has been corrected. I was so excited to get the HTML right that I ignored the content.","domain":"optical_engineering"}
{"url":"https://www.dentalplususa.com/products/metismile","date":"2024-04-25T04:55:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00696.warc.gz","language_score":0.866772472858429,"token_count":144,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__88830114","lang":"en","text":"MetiSmile is the first face scanner developed and produced by SHINING 3D exclusively for dentistry. It can quickly capture the facial information to create 3D model and assist in clinical diagnosis with its advanced software.\n– Fast Scan Speed\n– Ortho Simulation\n– Mandibular Trajectory Tracking (Upcoming)\n– Facial Features Measurement & Comparison\n– Automatic Alignment of Intraoral and Facial Data\nIn just 10 seconds this highly perceptive scanner can take photos of patients from multiple angles to simultaneously construct a 3D facial data.\nThe exceptional texture camera of the MetiSmile can accurately record and display facial color that appears realistic to the patient.","domain":"optical_engineering"}
{"url":"https://eyedoctorgk.gr/en/refractive-surgery/","date":"2023-09-24T20:12:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.30/warc/CC-MAIN-20230924191454-20230924221454-00350.warc.gz","language_score":0.9288454651832581,"token_count":754,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__70193950","lang":"en","text":"Modern lasers are better in speed and accuracy than older ones, so results are far superior than the early years of refractive surgery (1990-2000). We currently use the state-of-the-art Concerto (Wavelight) excimer laser, which is one of the fastest and most modern laser available worldwide. With high frequency (500Hz) and excellent eye-movement tracker, it has unparalleled results even in high amounts of refractive errors.\nWhat are refractive errors?\nIn myopia (short-sightness), incoming rays of light are focused in front of the retina (the sensitive layer inside the eye like the film in the camera), resulting in dim vision for distance without glasses or contact lenses. In hyperopia (long-sightness), incoming rays of light are focused behind the retina, resulting in dim vision for near and frequently for distance, depending on the amount of error. In astigmatism the cornea (the surface transparent layer of the eye) has unequal curvatures (instead of being like a football, it rather has the form of a rugby ball) resulting in dim vision in all distances. In all kinds of laser refractive surgery, the excimer laser is used to reshape the surface of the eye (the cornea), in order to eliminate any refractive error, so that vision is clear without glasses or contact lenses.\nThere are three main conditions to be met if you are considering refractive surgery:\nWhich are the options in laser refractive surgery?\nIn ASA (advanced surface ablation) the surgery is carried on the surface of the cornea. Initially the superficial layer (epithelium) is removed without any cutting (rather lifting) and then the laser is applied. The main difference between ASA and LASIK is that in ASA there is no cut on the cornea but the refractive laser is the same. Problems previously related with surface techniques (regression, haze, pain) are usually no longer an issue with advanced surface ablation.\nIn LASIK (laser in situ keratomileusis) the surgery is carried on approximately in 1/4 the depth of the cornea. Initially a femtosecond laser cuts a thin superficial flap (like a laser blade). Then the flap is lifted and the excimer laser is applied on the cornea. The thin flap is repositioned at the end of the treatment and stays in place without any sutures.\nThe choice of the method of refractive surgery depends on the amount of the refractive error, the thickness of the cornea and personal preference. In LASIK there is faster visual rehabilitation and less pain, whereas in ASA there is some pain for the first two days and fluctuation of vision for a few days, mainly because of the time for the surface to heal (a special contact lens is used for three days). On the other hand in ASA there is no cut on the cornea. Eventually both techniques have comparable long term results as shown in large studies. Dr George Kampougeris will discuss the appropriate technique for you during your consultation.\nIn monovision one eye is corrected to zero and the other is left slightly myopic in purpose (-1 or -1.5). Thus the brain subconsciously uses one eye for distance and the other eye for near (the low myopic eye). It is a good choice for people who dislike wearing presbyopic glasses after the age of 45. Not all people are suitable for monovision. There is a special test for monovision success, which will be done during your consultation.\n© 2022 Eyedoctorgk. All Rights Reserved By Focus on Web","domain":"optical_engineering"}
{"url":"http://www.dotdash.co.uk/macular-degeneration-devices-49/","date":"2017-12-16T18:43:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948588420.68/warc/CC-MAIN-20171216181940-20171216203940-00782.warc.gz","language_score":0.9610008001327515,"token_count":569,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__64389276","lang":"en","text":"Macular degeneration is a common eye disease among elderly people. When people have macular degeneration, they will have some loss in their central vision. So the most important thing to do is to find out the way to save their existing vision. Macular degeneration will offer the very help they need. The following will give some introduction on macular degeneration devices in order to help people to benefit more from them.\nWhen people are at their 40's or 50's, the macula, which is located in the center of the retina and in charge of the detail vision, will become weak. Therefore, people will have difficult in reading, playing cards, driving or other daily tasks. If macular degeneration is not treated in time, there will be more vision loss. Macular degeneration devices are used to maximize people's remaining vision by the use of specially designed eyeglasses, computer programs and other technologies. With the help of those macular degeneration devices, people's low vision can be improved to some extent, and they are able to enjoy reading or some daily tasks.\nBifocal reading glass is one of macular degeneration devices. With the help of bifocal reading glasses, people can see clearly no matter far away or close up as this kind of glass can change people's vision field. Therefore, bifocal reading glasses are very popular among aged people worldwide.\nDo you know there will be miniature telescopes on the eyeglass lenses? Yes, a miniature telescope can be placed behind or on top of the lens, so in this way, people can have two options. One is to look through the regular lens and benefit from the eye glass prescription, the other is to look through the telescopic lens to see detailed information clearly as there is an ultra magnification.\nAnd for people who have macular degeneration but need to use computers, they can have specially designed monitor for help, as the monitor can magnify the front size and enable people to see clearly. Besides, there is also software for macular degeneration devices, which can transfer our sound into text. We can speak to the computer microphone, and then the sound will be transferred into text on the screen. Moreover, even people with no vision, they can also benefit from the program which can turn the test into Braille documents online.\nClosed circuit television is also proved to be an effective macular degeneration device. We can put the right page under camera, and then the image will appear on our television screen, so that people can read and see them clearly.\nThanks for the great help given by macular degeneration devices. No matter what need you have caused by low vision due to macular degeneration, you can always find a satisfied macular degeneration device to satisfy your needs.","domain":"optical_engineering"}
{"url":"https://www.devx.com/terms/contact-image-sensor/","date":"2024-03-03T03:45:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476180.67/warc/CC-MAIN-20240303011622-20240303041622-00832.warc.gz","language_score":0.9020175337791443,"token_count":1529,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__40666559","lang":"en","text":"Definition of Contact Image Sensor\nA Contact Image Sensor (CIS) is a type of semiconductor-based image sensor used predominantly in scanning devices, such as document and barcode scanners. CIS technology consists of a compact, energy-efficient linear array of light-sensitive elements or photodiodes that detect the reflected light from an object being scanned. As the object is placed in close proximity to the CIS, it ensures high-resolution, sharp images with minimal aberrations.\nThe phonetics of the keyword “Contact Image Sensor” can be represented as:/ˈkɒn.tækt ˈɪm.ɪdʒ ˈsɛn.sər/In the International Phonetic Alphabet (IPA), where:- /ˈkɒn.tækt/ represents “contact”- /ˈɪm.ɪdʒ/ represents “image”- /ˈsɛn.sər/ represents “sensor”\n- Contact Image Sensors (CIS) are compact and low-cost sensors that offer high-resolution scanning for document and image processing.\n- CIS technology uses an array of Red, Green, and Blue (RGB) LEDs for illumination, providing better color reproduction while consuming less energy compared to traditional CCD sensors.\n- Due to their small size, CIS modules are commonly integrated into portable devices such as scanners, copiers, and multifunction printers, contributing to a compact and lightweight design.\nImportance of Contact Image Sensor\nContact Image Sensor (CIS) is a vital technology term in the world of imaging and scanning, as it refers to a type of sensor that captures an object’s image effectively by being in direct contact or extremely close proximity to it.\nBoasting a compact structure and lower power consumption compared to its counterparts such as CCD or CMOS sensors, CIS technology has been widely adopted in various applications such as document scanners, barcode readers, and copiers.\nIts significance lies in its ability to deliver high-quality images without distortion, while leveraging its small form factor, which enables the development of portable and space-efficient devices.\nIn summary, the importance of the Contact Image Sensor is underscored by its unique features that contribute to the performance, reliability, and practicality of numerous imaging and scanning products.\nA Contact Image Sensor (CIS) is a crucial component in modern imaging technology, primarily used in scanning devices such as flatbed scanners, barcode scanners, and multifunctional printers. The purpose of a CIS is to convert optical information from a document or object into digital data, allowing for easy storage, manipulation, and transmission of images. This technology is employed for various applications, ranging from document scanning in an office environment to identifying product information in retail settings.\nIn essence, the Contact Image Sensor has transformed the way we interact with physical documents, enabling efficient digitalization and streamlining of work processes. To achieve this, the Contact Image Sensor utilizes an array of microscopic light sensors, which are carefully positioned in close proximity to the surface being scanned. These sensors are highly sensitive to light and are able to capture even the smallest variations in color, contrast, and shape in the scanned object.\nAs the scanning device moves along the surface, the CIS records the incoming light from the object and converts it into electrical signals, accurately preserving the original image’s details. By employing sophisticated image processing algorithms, the digital data gathered by the CIS can be further refined and optimized to reflect the highest possible image quality. Ultimately, the Contact Image Sensor has emerged as an indispensable element of modern imaging technology, offering unparalleled precision and accuracy in capturing and processing visual information.\nExamples of Contact Image Sensor\nContact Image Sensors (CIS) are widely used in various real-world applications due to their compact size, low power consumption, and ability to capture high-resolution images. Here are three real-world examples of Contact Image Sensor technology:\nScanners: CIS technology is commonly utilized in flatbed scanners, portable document scanners, and all-in-one printers. They are positioned right below the surface of the scanning glass and generate digital images from scanned documents, photos, or objects. The LED lights in these scanners provide illumination, while the CIS array captures the reflected light to create a digital image.\nBar Code Readers: Handheld and stationary barcode readers often employ CIS technology for scanning barcodes on various items, products, or documents. These barcode readers use a combination of LEDs and CIS arrays to capture the barcode pattern, which is then decoded by the device’s internal software to retrieve the information stored in the code.\nSheet-fed scanners: Many sheet-fed scanners use Contact Image Sensors for fast, high-resolution document scanning. These scanners automatically pull documents one at a time through the scanning mechanism, where the CIS array captures images as the document moves past it. They are especially useful in busy office environments, where large volumes of documents need to be converted to a digital format.\nContact Image Sensor FAQ\nWhat is a Contact Image Sensor (CIS)?\nA Contact Image Sensor (CIS) is an imaging device commonly used in scanners, copiers, and other imaging equipment. It consists of an array of photodiodes and light-emitting diodes (LEDs) positioned in close proximity to the object being scanned, resulting in high-quality, clear image reproduction with minimal distortion.\nHow does a Contact Image Sensor work?\nA CIS works by using an array of photodiodes and LEDs to scan the surface of an object, typically a document, line by line. The LEDs emit light, illuminating the object, and the photodiodes then capture the reflected light to create a digital image. The image data is then transferred to a processing unit, which converts it into a digital format for storage, display, or transmission.\nWhat are the advantages of using a Contact Image Sensor over other imaging devices?\nContact Image Sensors have several advantages over other imaging devices, such as Charge-Coupled Devices (CCDs). Some of the key benefits include a smaller form factor, lower power consumption, and reduced manufacturing costs. CIS technology also usually results in better image quality in terms of geometric distortion and optical aberrations, as the sensors are placed directly in contact with the document being scanned.\nWhat are the main applications of Contact Image Sensors?\nContact Image Sensors are commonly used in several imaging applications, including document scanners, flatbed scanners, facsimile machines (fax), copiers, barcode readers, and some digital cameras. They are particularly well-suited for portable and low-power devices due to their small size and energy efficiency.\nHow can a Contact Image Sensor’s image quality be improved?\nThe image quality of a Contact Image Sensor can be improved by using high-quality photodiodes and LEDs, as well as by optimizing the sensor’s design, such as the positioning of the diodes and LEDs. Additionally, the performance of a CIS can be enhanced by using image processing algorithms to correct for distortion and noise that may be introduced during the scanning process.\nRelated Technology Terms\n- Contact Imaging Technology\n- Optical Lens Array\n- Charge-Coupled Device (CCD)\n- Complementary Metal-Oxide-Semiconductor (CMOS)\n- Document Scanning","domain":"optical_engineering"}
{"url":"https://www.mojopromotions.co.uk/laser_presenter","date":"2021-09-28T13:59:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060803.2/warc/CC-MAIN-20210928122846-20210928152846-00685.warc.gz","language_score":0.8541098833084106,"token_count":220,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__100401959","lang":"en","text":"Present your ideas with style using our Laser Presenter.\nThis compact unit has an approximate laser distance of 50 metres and is customised with your design. Made from a sturdy metal with batteries included and supplied individually boxed. Uses Infra-Red Technology, so the user must stay within 8m of the receiver.\nStandard prices based upon printing, however laser engraving is available at extra cost (your design shows through as bronze).\n- Approx. laser distance of 50m\n- Supplied individually boxed\n- Batteries included\n|1 Colour Print (£):||8.35||7.84||7.59||7.36|\n|2 Colour Print (£):||8.76||8.10||7.84||7.59|\n|3 Colour Print (£):||9.19||8.36||8.08||7.83|\n|4 Colour Print (£):||9.61||8.61||8.33||8.06|\nNote: Setup is charged at £35.00 per colour.","domain":"optical_engineering"}
{"url":"http://www.dyop.info/optical-home.htm","date":"2019-03-23T02:45:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202711.3/warc/CC-MAIN-20190323020538-20190323042538-00472.warc.gz","language_score":0.9011836647987366,"token_count":261,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__92181247","lang":"en","text":"The leading edge for 300,000 years of human vision technology\nTraditional vision testing uses black and white static images. It fails to account for the fact that acuity is actually a matrix response of the Red, Green, and Blue cone photoreceptors in your eyes. The retinal neural ganglia function as biological circuit board, and are chromatically sensitive to light to stabilize, and emphasize, seeing red at far distances and green at near distances. Static-letter black and white image testing fails to account for Red-Focused Chromatic Vision (RFCV) and its related near-vision symptoms affecting acuity such as dyslexia, migraines, and other chromatic-responsive visual problems.\nThere are 100 cone (color perceiving) photoreceptors for every optic nerve fiber. The neural layers of the retina “process” the responses of the photoreceptors much like a circuit board with the emphasis on patterns of motion and proximity. Those neural ganglia are also chromatically sensitive and emphasize seeing red at distances and green for near vision.\nViewChroma™ lenses restore chromatic balance to overcome the symptoms inherent in Red-Focused Chromatic Vision (RFCV).\nCopyright©2014 ViewChroma™ Vision, Inc. All Rights Reserved.","domain":"optical_engineering"}
{"url":"https://www.swedishaccess.com/smart-face-recognition/","date":"2024-04-22T06:00:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00732.warc.gz","language_score":0.8573076725006104,"token_count":350,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__19283688","lang":"en","text":"Swedish smart face recognition terminal is a kind of access control device integrated with temperature screening function. It can fast taking skin-surface temperature and upload abnormal temperature event to the center, which can be widely applied in multiple scenarios, such as enterprises, stations, dwellings, factories, schools, campus and so on.\nSwedish Smart face recognition terminal\n24 X LED White Light, 1x Thermal Image Sensor, 2 x 2MP HD camera, 2 x LED Infrared Light, 1.2 mm thick tempered glass, 7 inch IPS HD screen, Recognition result, Aluminum Alloy.\nThe product has a 1x Thermal Imaging Sensor. When the equipment is running, it detects the temperature difference and analyses it. It will automatically warn when the detected temperature exceeds the set value.\nIt provides an accurate non-contact forehead temperature monitoring within error range of 0.3 to prevent cross infection.\nThe camera is analysed by a database algorithm, fast face recognition comparison and judgement.\nThe face mask recognition system uses a unique AI technology to detect the person with or without a mask. The accuracy rate of detecting a person with a face mask 98%. The system can be interfaced with the access control to permit all people who wears mask that covers the nose and mouth. The data can be transferred and be stored automatically in the system to enable reports whenever you want.\nImpressed? We’d love to work with you!\nArchitectural Door Hardware and Entrance Systems from world’s leading manufactures.\nWe offer the most innovative and reliable solutions available in the industry.","domain":"optical_engineering"}
{"url":"http://www.cablesplususa.com/guides-reviews.php","date":"2013-05-25T15:14:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705956734/warc/CC-MAIN-20130516120556-00044-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8234663605690002,"token_count":684,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__120417763","lang":"en","text":"The Benefits and Application of 16 Gbps Fibre Channel\nDiscusses 16 Gigabits per second (Gbps) Fibre Channel (FC) and how it improves throughput in Storage Area Networks to reduce Inter-Switch Link counts, improve application performance, ease management, and reduce power consumption per bit.\nHandbook of Polyethylene Pipe (Corrugated & Smoothwall Innerduct Conduit)\nPE piping, has been successfully utilized for a variety of piping\napplications for over 50 years. Despite this relatively short history,\nthe engineering community has embraced the overall toughness\nand durability of PE pipe and the latitude afforded by the variety of\ninstallation methods that can be employed using PE pipe to expand\nits use at a quickening rate.\nFiber Selection Guide\nThe perfect reference guide for determining connector type, fiber color coding, singlemode and multimode descriptions and characteristics.\nShort for Gigabit Interface Converter, a transceiver that converts serial electric signals to serial optical signals and vice versa.\nFiber Optic Installation Guide\nInstallation guidelines for NextGen fiber optic cables to assure proper optical and mechanical performance and long cable life.\nFiber Optic Aerial Connection Guide\nDetail of methods of aerial runs of fiber optic cable; lashing, slack bracket, messenger cable etc.\nPlenum Vs Non-Plenum Cable\nWhat is the diference between Plenum and Non-Plenum, Riser, Cable.\nOM3 and OM4 Fiber Optic Guide\nWith each passing year demand for higher data rates in data center environments grow. More and more sophisticated equipment is introduced into the marketplace and more users need access to data center services. Today, we are able to transmit data within the data center at 10 Gig / second using multimode fiber.\nNational Electric Code (NEC) Cable Fire Ratings Guide\nRJ45 Wiring Guide\nThis helpful guide lists out the most common NEC fire ratings in the telecom, datacom, and CATV/antenna industries.\nColor code for straight-thru and crossover RJ45 connectors.\nFiber Optic Cable and Connector Guide\nA helpful guide to fiber optics including information about glass types, fiber optic connectors and cabling.\nConnectivity - Planning and Design Guide (PDF, 600K)\nSAN & NAS Networks.\nSystems Guide (PDF, 3.3MB)\nCable management guide.\nEasy Fiber Optic Installation\nFiber Installation Made Easy with the MTP Solution. MTP is a plug-and-play solution that can save your company time, space, and energy.\nFiber Optic Assembly Guide\nA quick overview of fiber channel assemblies.\nLearning About Options In Fiber\nA brief history, advantages/disadvantages to fiber, etc.\nCourtesy of Fiber Options, Inc.\nFiber Optics Application Notes\nLearn about installation procedures with our on line optical fibre training notes for engineers and technicians.\nCourtesy of Kingfisher International Pty Ltd\nTo identify an unknown thread, certain tools and data are necessary. Included in these Charts are a helpful compilation of the data needed for the identification of most external (Male) threads from the three most popular thread systems in the world, metric standards, U.S.A.(Inch) standards, and the British (Inch) standards.","domain":"optical_engineering"}
{"url":"http://ep.espacenet.com/publicationDetails/biblio?adjacent=true&KC=A1&date=19981021&NR=0872562A1&DB=ep.espacenet.com&locale=en_GB&CC=EP&FT=D","date":"2013-06-20T07:55:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368711005723/warc/CC-MAIN-20130516133005-00020-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7614555954933167,"token_count":176,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__17935101","lang":"en","text":"|Page bookmark||EP0872562 (A1) - Instrument for monitoring nucleic acid amplification reactions|\n|Inventor(s):||HIGUCHI RUSSEL G +|\n|Applicant(s):||HOFFMANN LA ROCHE  +|\n|Application number:||EP19980110423 19920424|\n|Priority number(s):||EP19920106989 19920424; US19910695201 19910502|\n|Also published as:||\nThe present invention relates to an instrument for monitoring a nucleic amplification reaction comprising a thermal cycler having a support adapted for accomodating one or more nucleic acid amplification reaction volumes; and an optical system adapted for being optically coupled to the one or more nucleic acid amplification reaction volumes accommodated by the support.","domain":"optical_engineering"}
{"url":"https://www.oceandiscovery.org/en/3d-scanning-fotogrammetri/","date":"2024-02-23T03:10:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474360.86/warc/CC-MAIN-20240223021632-20240223051632-00161.warc.gz","language_score":0.9269678592681885,"token_count":628,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__126235669","lang":"en","text":"3D Scanning / Photogrammetry\n3D scanning involves collecting overlapping high-resolution still images processed by powerful computers using a method called photogrammetry. The result is a 3D model with a level of detail far superior to other documentation methods such as Multi Beam Echo Sounder (MBES) and Side Scan Sonar (SSS). The 3D model can be viewed from any angle or view, which offers an outstanding overview and basis for assessments.\nOcean Discovery is today a leader in 3D scanning and underwater photogrammetry. Initially, the method was mainly used in marine archaeology. The most famous marine archaeological documentation carried out by the company is the Mars shipwreck , which sank in a naval battle off Öland in 1564. Nowadays, the method is used in a variety of applications and since 2018 the company has scanned 6 wrecks for the Swedish Maritime and Water Authority in the work to document and clean up environmentally hazardous wrecks. 3D scanning is also used for port inspections, bridge foundations, pipelines and all sorts of underwater constructions.\nOcean Discovery uses exclusively remotely control underwater robots (ROV) equipped with advanced still cameras and powerful strobes. This means cost-effectiveness and is safer than using divers. The ROV can operate down to a depth of 500m and together with survey vessels with dynamic positioning, the ROV can operate without anchoring.\n3D scanning opens up new opportunities in disaster investigations and marine archaeology where the new technology can provide an overall picture of the entire wreck site as well as detailed studies of damage and technical details with the possibility of precise measurement within a few millimeters margin.\nOcean Discovery also produces computer-generated images (CGI) based on photogrammetry to media, museums and the film industry.\nROV with high resolution camera for photogrammetry\nOrthographic images are a composite image in bird's eye view of all images that created the 3D model. Depending on the size of the project, it can be thousands of images that together form a single ultra-high-resolution image. The images can be generated in GeoTiff format so they can be opened in GIS programs where measurements and evaluations can be performed. With the help of underwater positioning equipment (USBL), the orthographic image can also be referenced geographically, thus it is possible to position each point in the image.\nDetailed elevation maps\nDetailed elevation maps (DEM) mean that each point in the image is assigned a color depending on the depth. The result is an image where every small difference in height is clearly visible and you get an immediate overview. DEM image can be opened in on the market available GIS programs.\n3D Scanning of ports and submerged pipes\n3D scanning is useful as an inspection method for all kinds of underwater structures. During port inspections, the sheet piling can be inspected quickly and efficiently and damage measured, assessed and positioned. The position of submerged pipes, and displaced weights with free span as a result can be accurately measured in the 3D image. The examinations can be supplemented with thickness measurement with ultrasound.","domain":"optical_engineering"}
{"url":"https://www.getgreenled.com/post/manage-your-blog-from-your-live-site","date":"2024-04-25T15:13:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297295329.99/warc/CC-MAIN-20240425130216-20240425160216-00242.warc.gz","language_score":0.890582263469696,"token_count":345,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166344574","lang":"en","text":"Have you ever walked into a restaurant with super bright lighting and felt that the space felt \"off\"? If the answer is yes, you aren't wrong! To first understand why this feeling occurs, let's understand the basics of what light temperature is.\nSo what is color temperature anyway?\nAs a review, color temperature (Correlated Color Temperature, or CCT, in lighting tech jargon) is essentially a gauge of how yellow or blue the color of light emitted from a light bulb appears.\nIt’s measured in the Kelvin unit. Most light temperatures are found between 2200 (warm light) Kelvin degrees and 6500 (cool light) Kelvin degrees.\nWarm light sources, such as incandescent bulbs, have a low color temperature (2200-3000K) and feature more light in the red/ orange/ yellow range.\nWhen you think of a warm color temperature, think of the warm, inviting light of a fire in the fireplace or a nice high-end restaurant with classy dim lighting.\nCool light sources, such as some HID or fluorescent lamps, have a high color temperature (>4000K) and feature more light in the blue range.\nWhen you think of a cool color temperature, think of the crisp white or blue light of school hallways or hospitals.\nAffects on Productivity\nRecent studies looked at the effect of color temperature on visual acuity in schoolchildren.\nOptometrists conducted vision and reading tests for children under 3 different scenarios:\nSS00K (white) light at normal light level\n3500K (warm white) light at normal light level\nSS00K light at half the level of the first two scenarios.","domain":"optical_engineering"}
{"url":"https://www.dioptra.cz/products/d188a-lch-8390a-magnifier-for-reading-with-anatomic-handle","date":"2023-03-22T00:58:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943747.51/warc/CC-MAIN-20230321225117-20230322015117-00424.warc.gz","language_score":0.7301156520843506,"token_count":142,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__71918330","lang":"en","text":"D188A - LCH 8390A - Magnifier for reading with anatomic handle\nProduct code: D 188A - LCH 8390A\nMagnifier for reading with anatomic handle and plastic bikonvex lens - diameter 90 mm, magnification 2,0 x, with added segment - diameter 22 mm, magnification 4,0 x.\nMagnifier for reading with plastic biconvex lens:\n- diameter 90 mm\n- magnification 2,0 x,\n- anatomic handle\nwith added segment:\n- diameter 22 mm,\n- magnification 4,0 x.\nProduct has not yet recieved any reviews. Be first!","domain":"optical_engineering"}
{"url":"https://timeconcepts.net/pages/bia-watches-luminous-dials","date":"2023-03-25T06:53:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945317.85/warc/CC-MAIN-20230325064253-20230325094253-00224.warc.gz","language_score":0.9067531228065491,"token_count":147,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__278413154","lang":"en","text":"Bia Watches Luminous Dials\nBia's luminous dials are powered by Visible247\n10 MINUTES EXPOSURE TO DAYLIGHT = 10 HOURS OF ILLUMINATION\nBia Watches feature Visible247, a revolutionary new illumination technology that uses miniature light receptive crystals molded into the watch dials, resulting in the highest performing photo luminescent injection molded polymers ever created.\nExpose to any type of light source for just 10 minutes, and it will glow in the dark for at least 10 hours - a much more durable glow than has been possible until now. Our lume technology is available in a variety of color choices that glow in a multitude of colors.","domain":"optical_engineering"}
{"url":"http://www.visint-telecom.com/goods/details/index/id/85/cid/57.html","date":"2023-09-27T04:02:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510259.52/warc/CC-MAIN-20230927035329-20230927065329-00038.warc.gz","language_score":0.8538002967834473,"token_count":828,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__15208881","lang":"en","text":"10G XFP OEO Muxponder\n10G OEO (XFP) amplifier card is an optical transmission equipment developed by Visint for amplifying and reshaping signals in the process of optical transmission. It can effectively save optical fiber resources and networking costs, solve the problem of excessive fiber distance, and is widely used in various trunk long-distance transmission.\n10G OEO (XFP) amplifier card is an optical transmission equipment developed by Visint® for amplifying and reshaping signals in the process of optical transmission. It can effectively save optical fiber resources and networking costs, solve the problem of excessive fiber distance, and is widely used in various trunk long-distance transmission.\nSupporting single-mode to multi-mode conversion, optical power amplification and other applications.\nSupporting unidirectional relay amplification or bidirectional relay amplification.\n3R supports transmission of 10GbE, 10GFC, 10GFC+FEC, 10GFC, 8GFC, STM-64/OC-192, STM-64/OC-192+FEC, OTU-1e, OTU-2, OTU-2e, etc.\nSupporting SNMP-based unified network management platform, network management mode CLI, WEB, NetRiver (graphical interface).\nSupporting 2 channels 10Gbit/s bidirectional service amplification or 4 channels 10Gbit/s unidirectional service amplification.\nSupporting FEC function, which can optimize output, DDM signal monitoring and link detection(not sending optical signal when there is no optical signal received)\nSupporting each port software / hardware self-loop.\nSupporting software to close the port.\nMaximum capacity of single card\n2*10G bidirectional transmission,\n4*10G unidirectional transmission.\nCWDM: 1271~1611nm, Multimode: 850nm, 1310nm.\nDWDM: C-Band (100GHZ or 50GHZ).\nService access types\nPDH, SDH: STM-16/STM-64,\nSONET: OC-48/OC-192,10GE, 8G, 10G, POS, FICON, ESCON.\n3R functions: (Re-amplifying), (Retiming), (Re-shaping).\nNetwork management functions\nCDR function (DDM real-time monitoring), different rate adaptive setting function, business one-way bidirectional setting.\nNetwork management mode\nCLI, NetRiver, WEB.\n-10℃ ~ 70℃.\n-40℃ ~ 80℃.\n5% ~ 95% no condensation.\nSafety and EMC\nCompliance with FCC, UL, CE, TUV, CSA standards.\nVisint® Vispace 1000 series products optical amplifier equipment is widely used in data room interconnection, metropolitan area network, access network and other networks. The device is connected in series on the service line to efficiently re-amplify, re-time and re-shape the signal, completely transparent to the service, and supports multiple rates from 100Mbps to 100Gbps.\nMultichannel amplification is an optical amplifier device (EDFA) connected in series in service line, which can amplify multiple wavelength optical signals in a single core optical fiber uniformly.\nFigure 1: Multichannel Amplification Application\nSingle channel amplification (SCA) is a relay amplifier (OEO) connected in series in the link, which is widely used to amplify single channel optical signals in optical fiber networks.\nFigure 2: OEO Amplification Application","domain":"optical_engineering"}
{"url":"https://fotograd.lv/en/hoya-49mm-hmc-uv-c-multi-coated-slim-original.html","date":"2022-05-20T08:21:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662531762.30/warc/CC-MAIN-20220520061824-20220520091824-00355.warc.gz","language_score":0.9161526560783386,"token_count":452,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__297770409","lang":"en","text":"HOYA HMC UV(C) Multi-Coated Filter THIN\n100% Genuine Hoya Product\nThe Hoya HMC UV(C) filter is fully coated surfaces increase light transmission and absorb almost all range of UV rays to give clearer and sharper pictures with less haze. The use of ultra clear glass ensures that color balance is maintained. Constant use for lens protection is recommened.\nThe UV-Haze filter is helpful when photographing mountain and marine scenes, where increased haze threatens to make your photographs indistinct in color and clarity. Absorbs the ultraviolet rays which often makes outdoor photographs hazy and indistinct. A multi-purpose fine-weather filter for color as well as black and white films. Also serves as a permanent lens protector.\nThese popular filters are renowned for their ability to minimize reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced color. HOYA HMC filters are recommended for enhancing the performance of today's multicoated lenses.\nAbsorbs the ultraviolet rays which often makes outdoor photographs hazy and indistinct. A multi-purpose fine-weather filter for color as well as black and white films. Also serves as a permanent lens protector.\nHaze (UV) filters are wise initial investments. They help protect your valuable investment from dust, moisture and scratches, which can lead to costly repairs. If desired they can be left on the lens at all times for protection. Haze filters provide additional benefits of correction for Ultraviolet (UV) light which can register on film and videotape as a bluish cast and can obscure distant details. Ultraviolet filters allow you to correct for the UV effect to varying degrees.\n|Type of filter||UV|\n|Filter thread||49 mm|\n|Series||HOYA HMC (C)|\n|Availability in the store:||Availability in shop after 2 - 3 days after order|","domain":"optical_engineering"}
{"url":"http://www.being-here.net/page/2714/world-upside-down","date":"2022-12-08T16:34:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711344.13/warc/CC-MAIN-20221208150643-20221208180643-00497.warc.gz","language_score":0.9377334117889404,"token_count":303,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__302997558","lang":"en","text":"Glass has this wonderful ability of being able to alter things. Solely by changing the thickness of the glass different optical phenomena and optical effects occur. The piece 'World upside down' show convergence through a convex lens. The term convex denotes a surface like the outside of a ball or sphere and convergence is the bending of light rays towards each other by a convex lens. Both the lens and the window should be made of the same type of glass to ensure the same coefficient of thermal expansion.\nWorld upside down\nWhen looking at this picture at least three convex lenses are involved. In the human eye (1), in the glass (2), and in the camera (3) that captured the photo. They all have the ability to turn the world upside down. Images of the world, as we see it (provided no extra lens is involved) enter the human eye inverted. In a camera the images are also captured upside down on the film, and when using a large format camera the photographer even previews the images inverted. That the images are captured upside down on the film does not matter; nothing could be easier than turning a negative. The lens in my glass piece below works accordingly. We humans have an advantage; our brain turns the images around for us. In my piece, the centre image actually hits the retina (the light-sensitive tissue lining the inner surface of the eye) right side up. In this case, it is the viewer's brain that turns the world up side down.","domain":"optical_engineering"}
{"url":"https://woven.co.uk/products/sol-black-pendant-1","date":"2022-05-22T07:26:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662545090.44/warc/CC-MAIN-20220522063657-20220522093657-00152.warc.gz","language_score":0.7043821811676025,"token_count":131,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__283927296","lang":"en","text":"Made in China\nTouch light with 3-step dimmer.\nMetallic brushed anodised steel, with a silicone cord.\nIncluded G125 Mirror Top Spherical Bulb Max. 1x6W\nAverage lifespan 30,000 hours\nLuminous flux 360\nInput E27 220V / 50Hz\nD Ø12.5cm x H 33cm, Cord L 5m\nEDGAR lamps are supplied with energy-efficient LED bulbs.\nAll bulbs have a colour temperature of 2200K, which ensures a warm ambient glow.","domain":"optical_engineering"}
{"url":"http://optics.conferenceark.com/about.php","date":"2020-10-25T15:50:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107889574.66/warc/CC-MAIN-20201025154704-20201025184704-00290.warc.gz","language_score":0.9410634636878967,"token_count":305,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__185491715","lang":"en","text":"Why We Are Best\n\"Strive not to be a success, but rather to be of value\"\nCConference Ark conferences are series of research and academic conferences that brings together some of the most devoted minds in the industry and academics to share ideas and showcase achievements. In addition to giving researchers a place to present their findings and data, the conferences are also used to help increase public engagement with science and community. The keynote talks are published on conference websites for the general populous to view freely in order to gain understanding of some of the advancements that are taking place.\nAARK Optics 2020 is the largest conference of optics and photonics in Dubai and one of the largest and most prestigious events in the field worldwide. The objective of the ARK Optics 2020 is to discuss the future role of optics and photonics in our society, based on the most current research and latest technologies worldwide. ARK Optics is the only annual Lasers, Optics and Photonics Global Summit in Dubai with a focus on building and encouraging relationships between academia and industry.\nAARK Optics 2020 is comprised of specialized international conferences that cover a broad range of fields in the study and advancement of light-based technologies. In 2020, this conference will return and cover an even broader range of topics and fields. ARK Optics will continue to promote exchanges between academia and industry and will include presentations from industry at the Plenary Session that will showcase the most up-to-date, real world applications of optics and photonics technologies","domain":"optical_engineering"}
{"url":"https://crueltyfreeinvesting.org/companies/novadaq-technologies-inc/","date":"2023-12-10T21:15:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102637.84/warc/CC-MAIN-20231210190744-20231210220744-00877.warc.gz","language_score":0.910540759563446,"token_count":246,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__97107057","lang":"en","text":"Novadaq Technologies Inc is on the Cruelty Free Investing list for exploiting animals because the company does animal testing for some of their medical products and clinical research.\nThe company stated in the following report that they conduct pre-clinical trials of their drugs on animals.\n“Animal testing using a porcine model validated the in vivo fluorescence imaging capability of the PINPOINT System.” (Page 6) Read the full document\nNovadaq Technologies, Inc. develops, manufactures and markets real-time fluorescence imaging products. Its products are designed for use by surgeons in the operating room and other clinical settings where open, minimally invasive or interventional surgical procedures are performed. The company’s products include SPY imaging system, pinpoint endoscopic fluorescence imaging system, firefly system for robotic surgery and CO2 heart laser system. Its SPY Imaging core technology platform provides clinically relevant anatomic and physiologic images during a wide variety of complex surgical procedures without exposing the patient to radiation. Novadaq Technologies was founded by Rick Mangat on April 14, 2000 and is headquartered in Mississauga, Canada. [Source: MarketWatch]\nCompany Website: http://novadaq.com","domain":"optical_engineering"}
{"url":"https://playtech.co.nz/products/g-skill-trident-z-royal-rgb-16gb-2x-8gb-ddr4-cl18-3600mhz-memory-silver","date":"2020-11-30T07:25:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141211510.56/warc/CC-MAIN-20201130065516-20201130095516-00262.warc.gz","language_score":0.8620041608810425,"token_count":267,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__192119369","lang":"en","text":"Magnificent Royal Design\nTrident Z Royal is the latest addition to the Trident Z flagship family, featuring a crown jewel design. Meticulously crafted to display just the right amount of light refraction, the crystalline light bar scatters the RGB colors in a magnificent display of LED lighting. Complementing the patented high-class light bar design, polished aluminum heatspreaders of gold or silver colors cools the memory modules in the award-winning classic Trident Z tri-fin design. And to help maintain the pristine shine of the heatspreaders, each Trident Z Royal memory kit comes with a piece of microfiber cloth to let you wipe away fingerprints and dust.\nUpgraded RGB Lighting\nInside the Trident Z Royal is the next generation RGB module designed with 8 individually controllable lighting zones, which allows for smoother color transitions and provides an even more stunning lighting experience for your build. To control this next generation RGB memory, a new set of lighting control software will be available for download from the official G.SKILL website.\nExtreme High-Speed Specifications\nEngineered on a newly designed custom PCB to accommodate the increased lighting zones, the Trident Z Royal is also built for high speed overclocking specifications, ranging from 16GB to 128GB kit capacities and up to DDR4-4600MHz memory speeds.","domain":"optical_engineering"}
{"url":"https://toysit.com/spy-toys/stealth-binoculars.html","date":"2024-04-20T08:35:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817491.77/warc/CC-MAIN-20240420060257-20240420090257-00426.warc.gz","language_score":0.9326295852661133,"token_count":493,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__130031629","lang":"en","text":"Night Vision Infrared Stealth Binoculars\nSpynet surveillance goggles\nSpy toys get more advanced as technology moves from the secret military sector into civilian uses. With these night vision binoculars, the aspiring spy or detective can utilize infrared surveillance technology to see up to fifty feet in total darkness. The system requires batteries as infrared light is sent into the space, which sensors in the goggles then pick up and transmit to the eyes and visual information. It is a full binocular display allowing both eyes to work together with the technology to see at night.\nEvolution of Night Vision Binoculars\nThe development of night vision binoculars can be traced back to the mid-20th century, closely tied to military applications during and after World War II. Initial night vision devices were large, cumbersome, and required an external infrared light source to illuminate targets. These first-generation devices, although revolutionary at the time, had limited range and resolution.\nBy the 1970s, the technology had advanced to the second generation, featuring the Micro Channel Plate (MCP) for the first time. MCPs amplified the available light more efficiently, enabling a more crisp and bright image, without the need for external infrared illuminators. These binoculars became smaller, more effective, and began to find applications beyond the military, such as in wildlife observation and law enforcement.\nThird-generation night vision binoculars, which emerged in the 1990s, introduced gallium arsenide for photocathodes, offering even better resolution and sensitivity. These high-performance devices could work in extremely low-light conditions and offered excellent image quality.\nThe fourth and current generation removed the ion film barrier from the MCP, increasing the life of the device and providing an even clearer image. These units are not only used by elite military forces but have become increasingly popular for civilian use, including hunting, wildlife observation, and even astronomy.\nCivilian Use and Technological Innovations\nAs the technology became more accessible and affordable, night vision binoculars started becoming popular among civilians for various applications. Today, innovations continue with the integration of digital displays, recording capabilities, and even WiFi for real-time sharing.\nThe journey of night vision binoculars from bulky, military-only equipment to compact, highly-efficient devices accessible to the general public is a testament to the rapid advancements in optics and electronics.","domain":"optical_engineering"}
{"url":"https://fishingpapa.com/costa-580g-vs-580p/","date":"2023-02-01T05:58:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499911.86/warc/CC-MAIN-20230201045500-20230201075500-00166.warc.gz","language_score":0.9472869634628296,"token_count":976,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__23138940","lang":"en","text":"Nothing beats a fishing escapade in the sunset or on a hot sunny afternoon. However, despite the perfect weather, you are likely to experience vision problems due to the light reflection on the water. That is why we recommend having a pair of sunglasses and, to be clear, polarized glasses. Costa 580g and 580p glasses are made for all outdoor activities. This way, you can be assured that you will not miss a single catch due to blurred vision. In this article, we will be differentiating the two lenses, so you have an easy time choosing and making a purchasing decision.\nMore About Costa 580g\nCosta 580g lenses were designed for people who are always outdoor. Eyes require much protection, and sometimes sunglasses do not meet our requirements. This is where Costa580 glass lenses come in. They are highly durable due to their nylon construction and rust-resistant hinges.\nThey manage light by offering protection against ultraviolet light and absorbing HEV light known to cause degeneration, cataracts, and other eye problems. Additionally, they block the harsh yellow light to help boost the amount of greens, blues and reds.\nThe lenses are scratch-resistant owing to the C-WALL molecular bond. Moreover, they are 20% thinner and 22% lighter than polarized glasses, making them the lightest and most durable lenses. They are perfect for anyone as they come with a rectangular frame to fit any face shape plus, they provide sufficient airflow preventing excessive sweating.\n- Filter out harsh yellow light\n- They are light\n- Sits securely on your head\n- Provides clear vision\n- Comfortable frame\n- With dim light, the lenses create a double vision\n- The rubber on the glass is not very durable\nMore About Costa 580P\nCosta 580p sunglasses, just like 580g, do not compromise on quality and durability. P stands for polycarbonate and is meant to provide a high clarity so you can enjoy your time in open waters and offshore. They are made with a bio-based nylon frame material that is durable, tough, and comfortable.\nThe lenses provide ultralight protection and absorb the harmful HEV light. They are lightweight so that you can wear them all day, and they come with an encapsulated mirror between the glass layers that makes them scratch-resistant. To ensure their safety, they come with a costa case cleaning cloth. Additionally, they offer a limited warranty so you can have them repaired by professionals in the possibility of damages.\n- Carry case for increased safety\n- Durable materials\n- Frame blocks light from the side\n- The lens is excellent at blocking light\n- Feel comfortable\n- The frames are thinner than previous models\n- The lenses feel small for some users\nCosta 580g vs. 580p : What’s the Difference\nCosta 580g and 580p are some of the best lenses you can get for your fishing escapades. They are durable, comfortable, and effectively protect your eyes from excess light. However, the two vary slightly, and here we are going to be looking at their differences.\nThe first difference is in the lens material. Costa 580g consists of glass lenses, while Costa 580p consists of plastic lenses.\nDue to their difference in lens materials, Costa 580g is less prone to scratches as it’s made of glass. However, it is more likely to break it handled recklessly. On the contrary, Costa 580p has plastic lenses; hence it’s likely to get scratches but less likely to face breakages.\nCosta 580p lenses are light due to the plastic material. On the other hand, Costa 5890g lenses are a little heavier due to the glass material.\nCosta 580g lenses have an encapsulated mirror between their glass layers, making them scratchproof. On the other hand, Costa 580p lenses only come with a C-Wall molecular bond for increased scratch resistance.\nCosta 580g vs. 580p : Head to Head Comparison Table\nIt doesn’t matter whether you are going out surfing, fishing, or kayaking. Owning Costa lenses will help keep your eyes safe. However, choosing between Costa 580g and Costa 580p can be confusing. Firstly, we understand that these lenses are made for all your outdoor activities with the utmost expertise. However, between the two, I would go for Costa 580g since I prefer glass more as it’s less prone to scratches and the comfort that comes with these products. However, this does not mean Costa 580p lenses are any bad. The Costa 580p best suits people who prefer plastic and lighter lenses.","domain":"optical_engineering"}
{"url":"https://takeliasfashionandbeauty.com/products/takelias-wrap-around-polarized-uv-rated","date":"2023-03-30T02:05:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949093.14/warc/CC-MAIN-20230330004340-20230330034340-00507.warc.gz","language_score":0.8971724510192871,"token_count":165,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__68774917","lang":"en","text":"Entice customers to sign up for your mailing list with discounts or exclusive offers. Include an image for extra impact.\nThese quality wrap around Polarized sunglasses are available in two different styles. Frame on the top of the lens or frame at the bottom of lens. They are laser engraved with the Takelia name. They are tested, modeled and approved by Takelia herself. Get yourself a pair for the summer!\nTAC Polarized Lenses - Lens surface Coated with Mirror finish\nTR90 Plastic Frame\nUV protection: These sunglasses block 99.9% harmful UVA/UVB Rays, they reduce the load on the eyes and ensures a comfortable view. This eyewear are made of high quality polarized lenses, with excellent optical quality, it can restore the true color and clarity to your visual effect.","domain":"optical_engineering"}
{"url":"http://www.cirrusphotonics.com/","date":"2024-04-16T18:32:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00547.warc.gz","language_score":0.9159766435623169,"token_count":434,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__18910561","lang":"en","text":"Cirrus Photonics, Inc. Optical Technology Solutions\nCirrus Photonics brings over two decades of experience in providing innovative light source and optical systems solutions to address the most difficult technical challenges. We offer a broad range of state of the art light sources for scientific applications, and are the North American distributor for the Seric XELIOSTM solar illumination lamp and SericTM solar simulators. We also offer custom OEM lamp solutions designed to your specific applications requirements. Our broad range of capabilities include consulting, design, engineering, integration and production.\nCirrus Photonics is privately owned US small business incorporated in the state of Florida and based in the city of Orlando and part of the Florida Photonics Cluster. Its team includes scientists, engineers and technicians from every discipline with diverse backgrounds and skill sets. We have been involved in critical programs both at home and abroad.\nCirrus Photonics, Inc. founder Alexandre Fong is a seasoned technology executive whose leadership includes the post of Senior Vice-President , Life Sciences and Instrumentation and Business Development, Gooch & Housego and senior business and technical management positions at ITT Industries, Newport Corporation and Honeywell International. He holds undergraduate and graduate degrees in Experimental Physics from York University in Toronto, Canada, an MBA from the University of Florida, and is a Chartered Engineer. Alex is an inventor, published author and lecturer in the fields of precision light measurement, life sciences imaging, remote sensing, applied optics and lasers, an active member of the American Physical Society, Optical Society of America (OSA), SPIE—The International Society for Optical Engineering, International Commission on Illumination (CIE) and the Institute of Physics. He is also a Senior Member of the OSA and SPIE and has been chair of a variety of committees for both. Alex is the current president of the Florida Photonics Cluster.\nSee www.alexfong.org for more details.\nSend mail to\nquestions or comments about this web site.","domain":"optical_engineering"}
{"url":"http://www.emrs-strasbourg.com/index.php?option=com_abstract&task=view&id=169&day=2012-05-17&year=2012&Itemid=99999999&id_season=6","date":"2013-05-19T01:09:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696383077/warc/CC-MAIN-20130516092623-00097-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8487617373466492,"token_count":27403,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__18860894","lang":"en","text":"Symposium : N\n|Active nanophotonics I : Mario Agio|\n|08:30||Integrated plasmonic devices|\nAuthors : Anatoly V Zayats\nAffiliations : Department of Physics, King's College London, Strand, London, WC2R 2LS, United Kingdom\nResume : Plasmonics deals with surface electromagnetic excitations in metallic structures and provides a great deal of flexibility in photonic integration since with surface plasmons the problem of light manipulation can be reduced from three to two dimensions. The electromagnetic field enhancement effects associated with surface plasmons and specific to them field confinement near metal interfaces result in the strong sensitivity of plasmonic mode to dielectric surroundings, thus facilitating all-optical and electronic control of their propagation. Many types of plasmonic nanostructures, such as waveguides, crystals and metamaterials can be designed to incorporate active material, such electro-optical, nonlinear-optical and gain materials. The choice of the waveguiding platform allows control over mode dispersion, mode confinement and propagation loss. In this talk we will overview plasmonic approaches for achieving subwavelength guiding and manipulation of optical signals. Generation, detection, amplification and modulation of plasmonic signals in the integrated circuitry will also be discussed. This work has been supported by EPSRC (UK).\n|09:00||Characterization of thermo-optical 2x2 switch configurations made of dielectric loaded surface plasmon polariton waveguides for telecom routing architecture|\nAuthors : K. Hassan, J.-C. Weeber, L. Markey, A. Dereux; A. Pitilakis, O. Tsilipakos, and E.E. Kriezis\nAffiliations : Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 5209 Université de Bourgogne, 9 avenue A. Savary, F-21078 Dijon, France; Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki GR-54124, Greece\nResume : We report on experimental characterization of Dielectric Loaded Surface Plasmon Polariton Waveguide (DLSPPW) thermo-optic switches structures for high data bit rate transfer. The development of active components made of DLSPPWs is a promising ways to integrate photonics components on-chip. DLSPPWs are comprised of a dielectric ridge (usually a polymer) with a typical cross-section of 0.5x0.5 µm² deposited onto a thin metal film. The fundamental mode travelling along these waveguides is a plasmonic quasi-TM polarized mode. Many passives components based of DLSPPW have been demonstrated and an efficient coupling of DLSPPW waveguides with SOI optical circuitry has been reported. Beyond passive components, dynamically controlled DLSPPW based devices are of practical interest. In this context, owing to the potentially large thermo-optical coefficient of the dielectric load, thermally activated DLSPPW devices have been proposed. In this work, we focus onto thermally controlled switches relying on either X-add-drop or Dual Mode Interference configurations. The performances of the switches are extracted from leakage radiation microscopy images. The experimental characterizations reveal extinction ratio larger than 5dB over bandwidth larger than 4.5nm.\n|09:15||Efficient thermo-optically controlled Mach-Zhender Interferometer using dielectric-loaded plasmonic waveguides|\nAuthors : Jacek Gosciniak 1,* Sergey I. Bozhevolnyi 1, Laurnet Markey 2, and Alain Dereux 2\nAffiliations : 1. Institute of Technology and Innovation, University of Southern Denmark, Niels Bohrs Alle 1, DK-5230 Odense M, Denmark 2. Institut Carnot de Bourgogne, UMR 5209 CNRS-Universite de Bourgogne, 9 Av. A. Savary, BP 47 870, F-21078 Dijon Cedex, France\nResume : Compact fiber-coupled DLSPPW-based MZI modulated by the external voltage base on the thermo-optic effect will be presented. Two sets of samples were fabricated and compared with PMMA and Cyclomer ridge and with the Cytop as a supporting material below gold electrodes showing significant improvement in the performance of such MZI compare to the previous studies where the magnesium fluoride was used and which is attributed to the lower thermal conductivity coefficient of the Cyclomer (0.12 W/mK) compare to MgF2 (11.6 W/mK). In this way, the heating efficiency of the ridge is increased and the total power efficiency for switching purpose is decreased. The experiments have shown 100% output modulation with Cyclomer-loaded MZI and 40 % modulation with PMMA-loaded structure what results from 3 times larger thermo-optics coefficient of Cyclomer than PMMA. For the MZI with a Cyclomer ridge, a low switching power of 2.35 mW was obtained with a 10 - 90 % rise time of 120 µs and 90 – 10 % fall time of 32 µs. The switching time was reduced by over 350 times compared to a structure with PMMA ridge with the same design what should be attributed mainly to the thermal properties of Cyclomer and partially to the smaller high of the ridge. Presence of the Fabry-Perot cavity in the modulated arm of the Mach-Zehnder interferometer cause it works as a wavelength-selective component.\n|09:30||Single-Mode Laser Operation of CdSe/CdS Core/Shell Colloidal Quantum Rods on Silica Microspheres|\nAuthors : C. Grivas1, P. Andreakou1, P. Wang2, M. Ding2, G. Brambilla2, L. Manna3, and P. G. Lagoudakis1\nAffiliations : 1 School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK; 2 Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK; 3 Istituto Italiano di Tecnologia (IIT) I-16163 Genoa, Italy\nResume : Single-mode operation of fiber-coupled hybrid lasers based on colloidal CdSe/CdS core/shell nanorods in silica microspheres is reported. The spheres were pumped at a wavelength around 400 nm with a tunable frequency doubled Ti:sapphire amplifier, operating at 250 KHz and emitting 180-fs-short pulses with a linewidth of 5 nm. Pump pulses were evanescently coupled into the spheres with adiabatic tapers made of single-moded fibers at 405 nm. Laser signals were collected by either a fiber tip with a diameter of ~50 nm or, the same taper used for pumping. To optimize pump efficiencies, phase-matching of the propagation coefficients between the propagating mode in the taper and the fundamental whispering-gallery-mode (WGM) in the microsphere was established. Single-WGM operation at ~628 nm, corresponding to the 1Sh-1Se(CdSe) transition of a microsphere with a 9.2 µm diameter was obtained by resonant pumping a fundamental WG pump mode at the equatorial ring of the sphere with │m│ = l, where m and l are the angular momentum and the azimuthal numbers, above an absorbed pump power threshold of 67.5 µW. Microspheres with larger diameters produced multimode laser emission. A maximum output power of 5.5 µW for 155 µW of absorbed power was measured, corresponding to a slope efficiency of 6.4%. Wavelength tunability over a range of 2.1 nm (which corresponds to 30% of the FSR) was achieved for the lasing wavelength, by heating with 3.5-µm-pulses of 200 fs duration and 80 MHz repetition rate.\n|09:45||Self-Collimation, Steering and Negative Refraction of Surface Plasmon Beams|\nAuthors : Benedikt Stein, Eloïse Devaux, Cyriaque Genet, and Thomas W. Ebbesen\nAffiliations : ISIS, Université de Strasbourg & CNRS, 67000 Strasbourg, France\nResume : Surface plasmon polaritons have raised renewed interest over the past decade for their potential in optical devices and circuits . Inspired by the design principles of photonic band-gap materials [2,3], we have studied the propagation of surface plasmon beams through singly and doubly periodic metallic gratings. Large beam steering effects are experimentally revealed by probing the isofrequency surfaces related to propagating Bloch waves inside the gratings. In particular, negative refraction is demonstrated close to the Bragg condition . Molding the shape of isofrequency surface can also lead to flat band structures. Weakly diffracting self-collimating SP beams in such gratings will be presented, demonstrating an alternative route towards non-diffracting plasmon beams.  Ebbesen, T.W.; Genet, C.; Bozhevolnyi, S. I. Physics Today, Vol. 61, No. 5. 2008, 44-50.  Zengerle, R. Journal of Modern Optics 1987, 34, 1589  Russell, P.S.J. Phys. Rev. A. 1986, 33, 3232  B Stein, JY Laluet, E Devaux, C Genet, TW Ebbesen Phys. Rev. Lett. 105 266804 (2010)\n|Active nanophotonics II : Anatoly Zayats|\n|10:30||Optical real space imaging of gate-tuneable graphene plasmons|\nAuthors : Frank Koppens , Michela Badioli, Jianing Chen, Pablo Alonso, Suko Thongrattanasiri, Florian Huth, Johann Osmond,Marko Spasenović, Amaia Zurutuza, Alba Centeno, Amaia Pesquera , Nicolas Camara , Philippe Godignon ,Javier Garcia de Abajo, Rainer Hillenbrand\nAffiliations : ICFO, The insttute of photonics Sciences, Barcelona (Spain); NanoGune, San Sebastian (Spain); Graphenea, NanoGune (Spain); University of Tours; CNM-IMB (Barcelona); IQFR-CSIC, Madrid (Spain)\nResume : Graphene has recently emerged as an intrinsically two-dimensional material with unique electrical and optical properties . Graphene has zero band gap, electrically tunable electron/hole doping, high-mobility charge carriers with an effective mass of zero and - despite its thickness of a single atomic layer - it still absorbs significant (~2.3%) light in the visible and near infrared region. Because these unique characteristics are all present in one material, it has great potential for opto-electronic applications, such as ultrafast photo-detection and optical switches. Interestingly, graphene is also a promising host for optical plasmons: surface waves coupled to charge carrier excitations of the conducting sheet . In this talk, I will discuss our recent experimental observations of spatially resolved graphene surface plasmons, obtained by scattering near-field microscopy. Interference fringes of propagating plamsons have been observed, from which we extract the plasmon dispersion. The plasmonic optical field confinement is remarkably strong, with a wavelength more than a factor of 100 below the excitation wavelength. This extremely strong optical field confinement can explained by the the unique conductance properties of graphene and its two-dimensional character. The true potential of graphene plasmonics is revealed by our implementation of a \"plasmon-transistor\". By tuning the carrier density, we can control the plasmon wavelength over a wide range. At sufficiently low carrier densities, plasmon propagation is fully quenched, providing us with a gate-controlled plasmon-switch. This research will reveal the far-reaching potential of a single sheet of carbon atoms as a host for guiding and manipulating light and electrons at the nanoscale, with prospects for strongly enhanced light-matter interactions [3,4], ultra-thin metamaterials , and novel active opto-electronic functionalities and devices .  K.S. Novoselov et al., Nature 438, 197 (2005)  M. Jablan et al. Phys. Rev. B 80, 245435 (2009)  F.H.L. Koppens, D.E. Chang, J. Garcia de Abajo, Nanoletters 11, 3370 (2011)  Y.Y. Nikitin et al, Arxiv 1104.3558 (2011)  A. Vakil, N. Engheta, Science 332, 1291–1294 (2011)  Thongrattanasiri,Koppens, Garcia de Abajo, PRL (2012)\n|11:00||Active Loss Compensation in Confined Surface Plasmon Polariton Waveguides|\nAuthors : S. Kena-Cohen, P. Stavrinou, D.D.C.Bradley, S. A. Maier\nAffiliations : Imperial College London\nResume : Propagation losses are well known to be a major obstacle to the large scale integration of surface plasmon polariton (SPP)-based optical components. There have, however, been recent demonstrations of surface plasmon amplification in symmetric waveguides supporting so-called long range surface plasmon polaritons (LRSPPs). Losses in such structures can be minimised, but the degree of confinement remains comparable to that achievable using conventional dielectric waveguides. To our knowledge, the best loss compensation achieved in confined SPP waveguides is on the order of 30%. Net gain remains, as of yet, elusive. Here, we present theoretical simulations and experimental results for a hybrid SPP waveguide capable of achieving net gain. By controlling the spatial pump distribution and using a thin metal layer, net gain is predicted to occur for pump powers < 100 kW/cm2. To realise the proposed structure, a new fabrication strategy is demonstrated which allows the use of ultrathin gold films, combined with multiple electron-beam lithography overlays, without the need for a sticking layer. Initial loss-compensation results from waveguides using a 125 nm-thick Alq3:DCM active layer will be presented.\n|11:15||Resonant extinction in free-standing arrays of non-resonant nanorods|\nAuthors : Petru Ghenuche(1,2), Gregory Vincent(2), Marine Laroche(3), Nathalie Bardou(1), Riad Haidar(2), Jean-Luc Pelouard(1), Stephane Collin(1)\nAffiliations : 1. Laboratoire de Photonique et Nanostructures (LPN-CNRS), Route de Nozay, 91460 Marcoussis, France; 2. Onera - The French Aerospace Lab, Chemin de la Huniere, 91761 Palaiseau, France; 3. Laboratoire Charles Fabry, Institut d’Optique, CNRS, Universite Paris-Sud, Campus Polytechnique, RD 128, 91127 Palaiseau cedex, France\nResume : We experimentally demonstrate that nearly 100 % of incident photons can interact with a monolayer of sparse and non-resonant scatterers, periodically arranged in a symmetrical environment. This nearly-perfect optical extinction through free-standing transparent nanorods originates from a multiple-scattering process. Freestanding Si3N4 membranes made of subwavelength square rods (width between λ/5 − λ/10) were fabricated on a Si substrate and drilled by dry etching. High-resolution dispersion diagrams have been measured for the absolute transmission and reflection for several arrays with one-dimensional and two-dimensional patterns. Remarkably for a transparent material with a fill factor of only 15%, up to 96% extinction, independent of polarization, is found. In addition, when lossy material is used to fabricate the rods, an absorption enhancement factor of 25 is found, an indication of the electric field enhancement that occurs in the vicinity of the rods. A key advantage of such dielectric gratings is the ease of tuning the resonance parameters by changing the geometrical parameters (period and radius of the rod, respectively) without being restricted to the range of frequencies of plasmons. The employment of these geometrical resonances in dielectric systems may provide new opportunities for applications like optomechanics, stop-band/band-pass filters and selective mirrors, and also for applications where fluorescence quenching must be avoided.\n|11:30||Collective plasmon response in arrays of metallic nanoparticles|\nAuthors : A.Slablab1), P.E.Coulon1), S.Perruchas2), T.Gacoin2), I.Monnet3), J.Cardin3), A. Fafin3), C.Dufour3), A.Losquin4), M.Kociak4), D.Mailly5) and G.Rizza1),\nAffiliations : 1) LSI, Ecole Polytechnique, 91128 Palaiseau Cedex, France, 2) LPMC, Ecole Polytechnique, 91128 Palaiseau Cedex, France, 3) CIMAP, 14070 Caen Cedex 5, France, 4) LPS, Bâtiment 510, Université Paris Sud XI, F 91405 Orsay, France, 5) LPN, CNRS, Marcoussis, France.\nResume : Plasmonics aims to exploit the unique optical properties of metallic nanostructures to enable the routing and the active manipulation of light at the nanoscale. However, the broad plasmon resonance of individual NPs limits the potential applications. A promising way to improve the quality of the LSPRs in to create Fano resonaces [1-6]. When light is incident on an array of NPs, it is scattered by different elements in the structure. The presence of order in the system enables the appearance of coherent effects among the various scattered waves. These new modes are called lattice surface modes (LSMs) and are characterized by very narrow symmetric and asymmetric (Fano) peaks. The LSMs modes represent a new decay channel for emitters and offer new routes for the design of nano-structured surfaces that enable a control of the spontaneous emission. Fano resonances possess an inherent sensitivity to changes in geometry or in the local environment: small perturbations can induce dramatic shifts in the resonance or line shape and exceptionally large field enhancements. These properties render Fano resonant media particularly attractive for a range of applications spanning from plasmonic photovoltaics, to bio-sensing, SERS and SEIRA spectroscopies. The objective of this study is to investigate how both the pattern of the array.\n|Plasmonics in other fields : Chris Geddes|\n|13:15||Nano-opto-mechanical phenomena in plasmonic metamaterials|\nAuthors : N.I.Zheludev\nAffiliations : Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton, SO17 1BJ, UK\nResume : At the nanoscale electrostatic and electromagnetic forces become sufficient to drive new intriguing and useful optical phenomena.\n|13:45||Engineered plasmonic nanoslit-cavity for optical trapping and molecular sensing|\nAuthors : Chang Chen1,2, Mathieu L. Juan3, Yi Li1,4, Liesbet Lagae1,2, Romain Quidant3,5, Pol Van Dorpe1,4,\nAffiliations : 1 imec, kapeldreef 75, 3001 Leuven, Belgium; 2 Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium; 3 ICFO-Institut de Ciences Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Spain; 4 Department of Electrical Engineering, KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium; 5 ICREA-Institució Catalana de Recerca i Estudis Avançts, Barcelona, 0810, Spain;\nResume : Surface plasmon polaritons (SPPs) have been widely used for concentrating light down to the sub-wavelength level or even to the nanometer scale. Many dedicated micro/nano-structures have already been proved as excellent plasmonic waveguides, lens, mirrors, filters and sensors, showing the huge feasibility in a broad range of applications. In this paper, we would like to introduce our novel plasmonic nanoslit-cavity device and its application for enhanced optical trapping at a low power and (bio)chemical sensing for the trace analysis. In a freestanding membrane we fabricated a tapered rectangular nanopore and covered it with gold, resulting in a lateral metal-air-metal cavity. The excitation of SPPs in the cavity is facilitated by engineering the length of the taper sidewall and is resonant at specific wavelengths due to a Fabry-Pérot resonance between the end sides of the nanoslit-cavity. Benefiting of the highly compressed SPPs inside the nanoslit, the intensity of the optical field near the middle of the edge of the slit is strongly enhanced, with enhancement factors of 1000~10000 at resonance. Moreover, the light transmitted through the subwavelength slit is also strongly improved, and the enhanced regions (hot spots) are only highly concentrated inside the slit. These critical properties suggest that, this kind of devices have promising applications in trapping and spectroscopy of nanoscale objects and molecules. As is well-known, gentle manipulation of micrometer-sized dielectric objects with optical forces has found many applications in both life and physical sciences. To further extend optical trapping towards the true nanometer scale, plasmonic trapping becomes an important tool, especially combing a strategy called the self-induced back action (SIBA) trapping. In this strategy, the trapped object plays a direct and active role in the trapping process. As a part of the SIBA strategy, when the object is trapped, it will influence the local field distribution and induce a red-shift of the resonance. Since the plasmonic resonance is reflected in the spectrum of the transmitted light, the induced red-shift can lead to a significant signal variation in the transmission, proving an effective and simple method for studying the trapping process. In this work, we combined the SIBA with the latest advances in nanoscale plasmon engineering. The designed resonant trap, formed by a rectangular plasmonic nanopore (a short nanoslit), is successfully tested on 22 nm polystyrene beads under a 1064 nm laser with a power at 2.5 mW, showing both single-bead and double-bead trapping events. The mechanism responsible for the higher stability of the double-bead trapping is discussed, in light of the statistical analysis of the experimental data and numerical calculations. Beyond trapping the nano-objects, the nanoslit-cavity device also shows a high accuracy and sensitivity on identifying analytes through surface enhanced Raman spectroscopy (SERS). SERS is a widely accepted analytical method providing molecular information with the sensitivity at the single molecule level. Here, we combine the SERS with the conventional nanopore fluidics technology. In nanopore fluidics, the nanopore is used to mechanically confine single particles or molecules. With the assistance of this method, translocations of analytes through the hot spots of the nanoslit-cavity will be simultaneously recognized by SERS. Until now, the identification on different self-assembled monolayers, small organic molecules such as nucleotides, DNA oligos and lambda-DNA have been investigated. In a short conclusion, the engineered plasmonic nanoslit-cavity devices have been successfully applied in the optical trapping of 22 nm nanobeads and SERS for molecular identification. Although it is not yet clear whether small molecules like nucleotides can be indeed trapped, our nanoslit-cavity may become a useful platform for immobilizing those larger biomolecules such as viruses, proteins, or even DNA strands. Acknowledgements C. C. and P. V. D. gratefully acknowledge financial support from the FWO (Flanders). References [1.] A. S. Maier, Plasmonics: Fundamentals and Applications, (Springer, New York), 2007. [2.] C. Chen, J. A. Hutchison, P. Van Dorpe, R. Kox, I. De Vlaminck, H. Uji-i, J. Hofkens, L. Lagae, G. Maes, G. Borghs, Small, 2009, 5, 2876. [3.] C. Chen, L. Lagae, G. Maes, G. Borghs, P. Van Dorpe, Phys. Status Solidi-R., 2010, 4, 247. [4.] C. Chen, P. Van Dorpe, J. A. Hutchison, F. Clemente, R. Kox, H. Uji-i, J. Hofkens, L. Lagae, G. Maes, G. Borghs, Angew. Chem. Int. Ed., 2009, 48, 9932. [5.] M. L. Juan, R. Gordon, Y. J. Pang, F. Eftekhari, R. Quidant, Nat. Phys., 2009, 5, 915. [6.] C. Chen, M. L. Juan, L. Yi, G. Maes, G. Borghs, P. Van Dorpe, R. Quidant, Nano Lett., 2011, ASAP. [7.] C. Dekker, Nat. Nanotechnol., 2007, 2, 209. [8.] C. Chen, R. Kox, F. Clemente, L. Lagae, G. Maes, G. Borghs, P. Van Dorpe, XXII International Conference on Raman Spectroscopy – ICORS, Boston, 2010.\n|14:00||Plasmonic coherent drive of an optical trap|\nAuthors : A. Cuche, O. Mahboub, E. Devaux, C. Genet, and T.W. Ebbesen\nAffiliations : ISIS, University of Strasbourg and CNRS, 8 all?Gaspard Monge, 67000 Strasbourg, France\nResume : Since the first demonstration of optical trapping with localized surface plasmons (LSP) on metallic pads in 2007 , the ability to manipulate small objects using the mechanical properties of propagating surface plasmons (SP) has become a topic of intense research. In this context of plasmonic opto-mechanics, we will demonstrate in this presentation that optical trapping can be driven by delocalized SPs resonantly excited within a standing wave trap (SWT) . Dynamical modifications of the trap are shown to be determined by the near-field symmetry of the SP modes excited on an extended structure, with negligible thermal effect. With low trapping powers and polarization control, remarkable stiffness enhancements are recorded, the larger the smaller the particle. The results can be simply modeled accounting for a coherent interaction between the SP field, with a symmetric or an antisymetric profile, and the Gaussian standing wave of the trap. Here we used a very simple nanostructure but a rich variety of dynamical effects are expected when designing more complex ones. Moreover the optical simplicity of our setup, combined with the low trapping powers, makes it truly compatible and easily integratable into optofluidics systems. This work opens appealing perspectives for trapping small objects (metallic particles), and possibly quantum objects in microfluidic environment.  M. Righini et al., Nature Phys. 3, 477 (2007)  A. Cuche et al., Phys. Rev. Lett. Accepted (2011)\n|14:15||Ultra-compact grating-coupled plasmonic sensing for high-resolution analysis with polarization modulation|\nAuthors : G. Ruffato(1,2,3), A. Sonato(1,2), G. Zacco(1,2,3), E. Pasqualotto(4), D. Silvestri(5), M. Morpurgo(5), A. De Toni(4), F. Romanato(1,2,3)\nAffiliations : (1) University of Padova, Department of Physics and Astronomy, via Marzolo 8, 35131 Padova, Italy; (2) Laboratory for Nanofabrication of Nanodevices, LaNN – Venetonanotech, Corso Stati Uniti 4, 35127 Padova, Italy; (3) CNR-INFM TASC IOM National Laboratory, Area Science Park, S.S. 14 km 163.5, 34012 Basovizza, Trieste, Italy; (4) University of Padova, Department of Information Engineering, via Gradenigo 6, 35131 Padova, Italy; (5) University of Padova, Department of Pharmaceutical Sciences, Via Marzolo 5, 35131 Padova, Italy\nResume : A Grating-Coupled Surface Plasmon Resonance (GCSPR) technique based on polarization modulation in the conical mounting is presented. A metallic grating is azimuthally rotated in order to support a double excitation of surface plasmon polaritons that can be exploited in order to provide a sensitivity enhancement [1,2]. In correspondence of the resonance polar angle, a polarization scan of incident light is performed and reflectivity data are collected before and after surface functionalization. Output signal exhibits a harmonic dependence on polarization and the phase term is used as a parameter for sensing. Since the configuration is kept fixed during the measurement and the only degree of freedom is represented by polarization, the mechanical complexity of the analysis system is significantly reduced. Moreover the setup assures great performance and benefits in sensitivity and resolution. Thus plasmonics underlying metallic gratings in the conical mounting, offers the possibility to design extremely compact, fast and cheap high-resolution plasmonic devices for sensing purposes . The adsorption mechanism of a thiolated poly(ethyleneoxide) (mPEO-Cys, Mw 5 KDa) monolayer on the grating was studied and the sensing platform was also verified in a model biorecognition assay using the avidin/biotin system.  F. Romanato et. al.,Opt.Express17,12145-12154 (2009).  Romanato et al.,Appl.Phys.Lett.96, 111103 (2010).  G. Ruffato, F. Romanato,submitted to Optics letters (2012)\n|14:30||Confinement effect of the Localized Surface Plasmons on the coupling of gold nanolithographied structures: Application to Surface Enhanced Raman Scattering|\nAuthors : N. Guillot1, C. D’Andrea2, A. Toma3, P. Albella4, R. P. Zaccaria3, E. Di Fabrizio3, J. Aizpurua4, P. G. Gucciardi2 and M. Lamy de la Chapelle1*\nAffiliations : 1 Université Paris XIII, Laboratoire CSPBAT (FRE 3043), UFR SMBH, équipe LBPS, 93017 Bobigny, France 2 IPCF-Messina, V.le F. Stagno D'Alcontres, 37, c.da Papardo, 98158 Messina, Italy 3 Istituto Italiano di Tecnologia (IIT). Via Morego, 30 16163 Genova, Italy. 4 Centro de Fisica de Materiales, CSIC – UPV/EHU, Paseo Manuel de Lardizabal 4, Donostia-San Sebastian 20018, Spain ; Donostia International Physics Center DIPC, CIC NanoGUNE Consolider, P. Mikeletegi 56, 20009 Donostia- San Sebastian, Spain\nResume : In the field of molecular detection by Surface Enhanced Raman Scattering (SERS), many efforts have been made to develop optimized substrates providing the highest enhancement of SERS and enabling the observation of the lowest concentration of analytes [1,2]. These efforts have been mainly focus on the electromagnetic process. In the purpose of creating intense local electromagnetic fields, sharp and elongated nanoparticles like nanorods or nanowires are known to be more efficient than spherical ones because they confine the LSP at their extremities and give rise to the tip effect . However, it is assumed that the best enhancement should be reached for coupled nanoparticles. Indeed, when the interparticle distance is of few nanometers, a high field is observed in the gap and is known as “hot spot”. In this work, we present for the first time the influence of the LSPs confinement on the coupling of the electromagnetic fields provided by elongated gold nanostructures oriented tip-to-tip and the consequence on the SERS efficiency. To investigate the coupling effect between gold nanorods in dimer configuration, some samples with nanolithographied arrays of dimers have been fabricated on CaF2 substrates. The distance between every dimer is kept constant and set to 200 nm to avoid near field coupling effects between the dimers whereas the separation between each monomer in the long axis direction is reduced from 200 nm (non coupled case) to 10 nm. In conclusion, we report that more elongated nanostructures obtain a smaller coupling decay length due to a higher LSP confinement and means that such structures must be much closer to couple as efficiently as smaller equivalent structures. The influence of the LSP confinement on the Raman intensity has been then discussed by showing that long enough coupling decay length lead to an exponential increase of the Raman intensity when decreasing the interparticle separation. We also notice the influence of the excitation wavelength on the coupling decay length and we observe that lower excitation wavelengths lead to higher LSP confinement and, as a consequence, decrease significantly the Raman intensity. Acknowledgements, The authors want to acknowledge the Nanoantenna collaborative European project (HEALTH-F5-2009-241818) for financial support. REFERENCES 1. Nie, S. and Emory, S. R., Science, Vol. 275, 1102, 1997. 2. Kneipp, K., Wang, Y., Kneipp, H., Perelman, L.T., Itzkan, I., Dasari, R.R. and Feld, M.S., Phys. Rev. Lett, Vol. 78, 1667, 1997. 3. Wokaun, A.W., in: Ehrenreich, H., Seitz, F., Turnbull, D. (Eds.), Solid State Phys., vol. 38, Academic Press, New York, p.223, 1984.\n|Computational and theory : Nathalie de Leon|\n|15:15||Light scattering under nanofocusing: Towards coherent nanoscopies|\nAuthors : (1) Ahmad Mohammadi, (2) Mario Agio\nAffiliations : (1) Department of Physics, Persian Gulf University, 75196 Bushehr, Iran; (2) Laboratory of Physical Chemistry, ETH Zurich, 8093 Zurich, Switzerland\nResume : Optical nanoscopy is recognized as a powerful tool for investigating physico-chemical as well as biological processes in nanomaterials, whereby subwavelength spatial resolution is combined with a variety of spectroscopic techniques. The past decades have witnessed the development of several attempts in this regard, which have however suffered from the mismatch between light and nanoscale matter. The dramatic advances of nanotechnology experienced in recent years have enabled us to fabricate optical nanostructures that greatly improve the conversion of localized electromagnetic energy into radiation and vice versa. In this context, it has been found that a truncated metal nanocone may focus light into nanoscale dimensions with minimal suffering from absorption losses and modify the radiation pattern of a light emitter placed near its tip. Our aim is to combine coherent spectroscopy with nanofocusing to explore how this approach may expand the detection limits of nanoscale objects, with particular attention on the competition between the enhancement of light-matter interaction, coherent detection as well as damping and dephasing processes. We furthermore highlight the unique features of scattering under nanofocusing and derive expressions for the visibility and the phase shift caused by a polarizable object. At last we discuss how these concepts may be extended to ultrafast and nonlinear techniques, coherent control and multidimensional correlation spectroscopies.\n|15:45||Polariton Dynamics in Light-Molecule Strong Coupling|\nAuthors : Tal Schwartz, James A. Hutchison, Jérémie Léonard, Cyriaque Genet, Stefan Haacke, Thomas W. Ebbesen\nAffiliations : ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge, 67000, Strasbourg, France; ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge, 67000, Strasbourg, France; IPCMS, Department of Ultrafast Optics and Nanophotonics, UMR 7504 Université de Strasbourg - CNRS, 67034 Strasbourg, France; ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge, 67000, Strasbourg, France; IPCMS, Department of Ultrafast Optics and Nanophotonics, UMR 7504 Université de Strasbourg - CNRS, 67034 Strasbourg, France; ISIS, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge, 67000, Strasbourg, France\nResume : Strong coupling of light and molecules is currently a subject of extensive study, and in the recent year it was demonstrated in various configurations, ranging from organic microcavities to plasmonic geometries such as metallic hole-arrays and nanoparticles. Such systems are highly attractive for fast switching, generation of coherent light (polariton lasing) and wavelength conversion applications and manifest a convenient tool to study quantum effects at room temperature. Here we present our experimental study of the dynamics of such coupled systems and the properties of the light-matter hybrid states, using both steady state and pump-probe spectroscopic methods. We find that the organic microcavity exhibits an ultrafast optical response (<100fs), much shorter than the natural response time of the bare organic dye. Moreover, using fluorescence measurements we find that the hybrid polariton states can exchange energy with a pool of incoherent, non-coupled states that are present in the organic systems. These results raise many interesting questions regarding the dynamics of strong coupling in organic system – does the system reach thermal equilibrium? How does the properties of the polariton states change as a result of the high complexity of the organic active material? Our experiments aim at building a clear picture of these underlying physical processes, which will allow the future development of strongly coupled organic-based photonic devices.\n|16:00||Efficient control of spontaneous light emission by elastic waves|\nAuthors : E. Almpanis, G. Gantzounis, I.E. Psarobas, N. Papanikolaou, C. Tserkezis, N. Stefanou, B. Djafari-Rouhani, Y. Pennec, V. Laude, A. Martinez\nAffiliations : Institute of Microelectronics, NCSR “Demokritos”, Ag. Paraskevi, GR-153 10 Athens, Greece ; Institute of Microelectronics, NCSR “Demokritos”, Ag. Paraskevi, GR-153 10 Athens, Greece ; Institute of Microelectronics, NCSR “Demokritos”, Ag. Paraskevi, GR-153 10 Athens, Greece ; Institute of Microelectronics, NCSR “Demokritos”, Ag. Paraskevi, GR-153 10 Athens, Greece ; Section of Solid State Physics, University of Athens, Panepistimioupolis, GR-157 84 Athens, Greece ; Section of Solid State Physics, University of Athens, Panepistimioupolis, GR-157 84 Athens, Greece ; IEMN, Universite de Lille 1, 59655 Villeneuve d' Ascq, France ; IEMN, Universite de Lille 1, 59655 Villeneuve d' Ascq, France ; Institut FEMTO-ST, Universite de Franche-Comte, CNRS, Besancon, France ; Nanophotonics Technology Center, Universidad Politecnica de Valencia, Valencia, Spain\nResume : The efficiency of light emitters can be enhanced in a photonic structure that supports localized light modes. More recently, strong acousto-optic interaction was predicted in appropriately designed microcavities that simultaneously localize light and elastic waves (phonons). For cavities of submicron dimensions, visible to near infrared light could be squeezed in a small volume, resonantly vibrating at GHz frequencies due to the elastic wave. When both elastic and optical fields are on resonance, multiphonon exchange mechanisms become significant, and dynamical optical frequency shift is enhanced. We investigate the influence of dual photonic-phononic resonant excitation on the spontaneous light emission of active centers. We consider a Si/SiO2 periodic multilayer structure, which operates as a Bragg mirror for both photons and phonons, with a defect layer (cavity) in the middle. Our calculation is based on the classical approach for light emission, and we solve the problem of an oscillating point dipole inside the multilayer structure using multiple-scattering Green's function techniques. The influence of the elastic wave is taken into account in a quasistatic picture, by considering both the bulk acousto-optic effect and the movement of the interfaces. Our results indicate that, through an elastic wave, it is possible to achieve strongly modulated light emission that escapes the multilayer slab and couples to traveling waves in the host medium.\n|16:15||Plasmonic Weak Measurements of Light Chirality|\nAuthors : Y. Gorodetski, S. Benedikt, C. Genet, T. W. Ebbesen; K. Y. Bliokh; N. Shitrit, V. Kleiner, and E. Hasman\nAffiliations : ISIS, Université de Strasbourg and CNRS, 8 allée Gaspard Monge, 67000 Strasbourg, France; A. Usikov Institute of Radiophysics and Electronics, NASU, Kharkov 61085, Ukraine; Micro and Nanooptics Laboratory, Faculty of Mechanical Engineering, and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel\nResume : Polarization-dependent transverse shifts of spatially-confined optical beams - the spin Hall effect (SHE) of light, has become a topic of an intensive research. The SHE manifests itself in the opposite trajectory displacements of right-hand and left-hand circularly polarized beams reflected or refracted by a plane interface. Here, we demonstrate the surface-plasmon (SP) counterpart of SHE as a natural weak-measurement tool, owing to the fixed linear polarization of the surface mode, and probe the “weak value” of the light spin (polarization helicity). The subwavelength nature of the SHE makes it highly relevant for near-field optics, high-numerical-aperture microscopy, and, particularly, plasmonics.\n|16:30||Purcell factor for point-like dipolar emitter coupling 2D-plasmonic waveguides|\nAuthors : G. Colas des Francs, J. Barthes, A. Bouhelier, A. Dereux\nAffiliations : ICB, CNRS/Univ. Bourgogne Faculty Sciences Mirande 9, av. Savary - BP 47870 - 21078 Dijon\nResume : We theoretically investigate spontaneous emission of a quantum (3D) dipolar emitter located near a (2D) plasmonic waveguide of arbitrary form. The channels into which emitter couples (plasmon, scattering, electron-hole pairs creation) are well identified. We achieve a closed form expression for the coupling rate into the guided SPP, extending the expression of the Purcell factor to plasmonic waveguide configuration . We also investigate the radiative and non radiative channels. In particular, the contribution of the SPP mode to the non radiative rate, difficult to estimate otherwise, is clearly established. Our method relies on the numerical evaluation of the available relaxation channels at the emitter location . It treats equivalently bound and leaky waveguides of arbitrary cross-section, possibly on a substrate. Finally, we apply this formalism to the description of integrated plasmonic amplifiers, that consists of a gain medium juxtaposed to a plasmonic waveguide . Indeed, strong emission quenching for excited emitters in close proximity to the metal severely degrades the gain medium specifications  so that the competition between stimulated emission of SPP and quenching has to be carefully described . References 1 Barthes et al., \"Purcell factor for point-like dipolar emitter coupling to 2D-plasmonic waveguides\", Phys. Rev. B (2011). 2 Colas des Francs et al., \"Integrated plasmonic waveguides: mode solver based on density of states formulation\", Phys. Rev. B 80 115419 (2009). 3 Grandidier et al., \"Gain-Assisted Propagation in a Plasmonic Waveguide at Telecom Wavelength\", Nano Lett. 9, 2935 (2009).  de Leon, Berini,\"Theory of SPP amplification in planar structures incorporating gain media\", Phys. Rev. B 78, 161401 (2008).  Colas des Francs et al, \"Optical gain, spontaneous and stimulated emission of surface plasmon polaritons in confined plasmonic waveguide\", Opt. Exp. 18, 16327 (2010).\n|16:45||Stationary and ultrafast transient optical responses of gold nanoparticles in a one-dimensional photonic crystal cavity|\nAuthors : Xiaoli Wang,(1), Roberta Morea,(2), Jose Gonzalo (2), Bruno Palpant(1)\nAffiliations : (1) Ecole Centrale Paris, Laboratoire de Photonique Quantique et Moléculaire, UMR 8537 – CNRS, Ecole Normale Supérieure du Cachan, Grande Voie des Vignes, 92295 CHÂTENAY-MALABRY cedex, France. (2) Laser Processing Group, Instituto de Optica, CSIC, Serrano 121, 28006 Madrid, Spain.\nResume : Metal-dielectric nanocomposites have attracted much attention as promising optical materials based on the surface plasmon resonance. Their optical properties can be modified on an ultrafast time scale by a series of energy conversion and exchanges processes following light pulse absorption. By playing together with these nanoscale photo-induced modifications and the processing of the composite medium in wavelength-scale structured devices, one may conceive optically controlled photonic functions. In this work, we use gold nanoparticles in the defect layer of a photonic-crystal based electromagnetic cavity. Both the stationary and ultrafast transient optical responses are investigated. We first show how the linear transmission varies with the concentration of gold nanoparticles and the angle of incidence of light. Then the ultrafast transient modification of the device transmittance is calculated in the very short time scale by solving Boltzmann equation for the electron distribution in the athermal regime together with the Rosei model for the metal energy band structure and Lindhard’s theory of the dielectric function. The transmission spectra are deduced from the transfer matrix method. We show that, under certain condition, the transient response of the nanocomposite medium can be enhanced by interference effects in the cavity. Finally, pump-probe spectroscopy experiments validate these simulations on a multilayer device elaborated by Pulsed Laser Deposition.\n|17:00||2D metallic photonic quasicrystals|\nAuthors : Christina Bauer, Georg Kobiela, Harald Giessen\nAffiliations : 4th Physics Institute, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany\nResume : Simulating the optical properties of 2D photonic quasicrystals  is often not possible due to their lack of periodicity. Therefore, a simulation model is required which is independent of the structural arrangement. In this contribution we present a simulation model for a quasicrystalline arrangement of metallic nanodisks on top of a waveguide slab . The incident linear polarization can excite waveguide modes. The propagation directions of the waveguide modes for normal light incidence are given by vectors pointing to the individual 2D Fourier peaks of the structure. For angular light incidence the kxy-component of the incident k-vector has to be added. In each propagation direction a TE as well as a TM wave can propagate in the waveguide. Therefore, the incident polarization Ea has to be split into a TE as well as a TM component. Additionally, particle plasmons can be excited in the metallic nanodisk. These particle plasmons can be considered as sources of independent, rotated material polarizations which can also excite waveguide modes. The spectra can then be calculated by using a Fano model  that takes the contributions above into account. A quasicrystalline sample was measured for different incident polarizations as well as for varying incident angles. Our model shows excellent agreement with our simulations. 1 T. Matsui et al., Nature 446, 517 (2007). 2 A. Christ et al., Phys. Rev. Lett. 91, 183901 (2003). 3 A. Christ et al., Phys. Rev. B 76, 201405(R) (2007).\n|Poster session II : TBA|\n|17:45||observation of strong quantum-confined Stark effect in individual localization centers within InGaN quantum-well based light emitting diodes|\nAuthors : Suman De, Subhabrata Dhar, Arindam Chowdhury\nAffiliations : Department of Chemistry, Indian Institute of technology Bombay; Department of Physics, Indian Institute of technology Bombay; Department of Chemistry, Indian Institute of technology Bombay;\nResume : Using spectrally resolved photoluminescence imaging in a high throughput manner, we have demonstrated the extent of quantum confined stark effect (QCSE) in spontaneously formed individual emission centers within InGaN quantum well based light emitting diode. Understanding the effect of QCSE on optoelectronic behaviors of these highly localized emission enters is particularly important due to the fact that composition and morphology induced potential fluctuation in active layer is known to enhance the photoemission efficiencies by suppressing in-plane migration of carriers to non-radiative centers. The extent of the QCSE within these randomly dispersed individual radiative traps is extremely diverse, magnitude of which is dependent on carrier localization mechanisms. A self consistent Schrödinger-Poisson equation is solved to estimate the internal electrostatic field within these nano-structures, which suggest that the extent of this local intrinsic polarization field not only depends on morphology and composition of nanoscale domains, but also their dimension and strain relaxation therein. Moreover, screening of this electric field by photogenerated carriers leads to a shift in transition energies of up to ~400 meV, significantly higher than those observed for nitride based QW heterostructures.\n|17:45||Temperature dependent photoluminescence property of CdSe quantum dots and influence of shell injection temperature in CdSe/ZnS/CdSe quantum dot quantum wells|\nAuthors : Eun Yee Ko1,2, Ju-Won Jeon2, In Hwan Lee2, and Joo In Lee1,*\nAffiliations : 1 Nano imaging technology center, Korea Research Institute of Standards and Science, Daejeon, Korea 2 School of Advanced Materials Engineering and Research Center of Advanced Materials Development, Chonbuk National University, Jeonju, Korea\nResume : This paper reports the temperature dependent photoluminescence (TDPL) property of the colloidal CdSe quantum dots (QDs) and the influence of the shell injection temperature on photoluminescence (PL) peak position of CdSe/ZnS/CdSe quantum dot quantum wells (QDQWs). The TDPL results on the CdSe QDs which were emitted at the wavelength of 488 nm using the Ar+ laser. The temperature range was from 15 K to 290 K. With the increase the temperature the PL peak position of the CdSe QDs shifted toward the lower energy to 35 meV. It is noticeably smaller than bulk CdSe (~ 100 meV). This property can give an advantage for an application to various devices. Two quantum systems as CdSe/ZnS/CdSe quantum dot quantum wells (QDQWs) have two different PL peak positions. The structural and optical properties of the outer shell (quantum well) is affected by an alteration of a shell injection condition. Photoluminescence (PL) results of CdSe/ZnS/CdSe QDQWs with two different shell injection temperatures which are 200 oC and 240 oC, respectively. The PL peak position of the QDQWs with the shell injection temperature of 240 oC shifted toward the lower energy compared to that of the QDQWs with the shell injection temperature of 200 oC. This result indicates the PL peak position of outer shell could be controlled by the shell injection temperature.\n|17:45||Theoretical studies of the physical properties of CdTe/CdZnTe for detection of radiations|\nAuthors : Asma Saim, A.Tebboune\nAffiliations : A.H.Belbachir\nResume : Our research topic is ‘’The study of the properties of CdTe/ZnTe/CdZnTe for the detection of the radiations’’. This theoretical study which we went, fact the object of improving the performances of the detector with semiconductor. For our calculation we chose to work with the software Mindlab (MStudio version 5) which is based on the theory of the functional of density DFT with the approximation LMTO and LDA. With our software we will extract all information for the structural properties (crystalline), electronics, optics and plastics for CdTe with the four bands (B1,B2,B3,B4) at nanometric scale. These results were compared with those of the Silicon (Si) which was selected like reference. Then we plotted the curves of energy according to volume with the software Origin version 6 after having to make a tittle program in language Fortran 97 which calculates volume according to the cell parameter. The interesting discoveries in the technology of the semiconductors encouraged us to make the same study with CdZnTe to see whether the fact of having zinc (Zn) with CdTe will pose a change in the results towards a more promising detection. All the theorical results that we obtained were compared with the experimental results of the scientific articles. This study must highlight new semiconductor materials which will answer the keyboard of loads of the detection of the radiations in general. Keywords: detectors with semiconductors, semiconductor, CdTe, CdZnTe, DFT, LMTO, LDA\n|17:45||Detection of change in fluorescence between reactive cyan and the yellow fluorophores using a-SiC:H multilayer transducers|\nAuthors : P. Louro1,2, M. A Vieira,1,2, M Vieira1,2,3\nAffiliations : 1Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, firstname.lastname@example.org ; 2 CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal. 3 DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal\nResume : The device consists of a p-i'(a-SiC:H)-n/p-i(a-Si:H)-n heterostructure optimized for the detection of the fluorescence resonance energy transfer between fluorophores with excitation in the violet (400nm) and emissions in the cyan (470nm) and yellow (615 nm) range of the spectrum. The thickness and the absorption coefficient of the i'- and i- layers were tailored for cyan and yellow optical confinement, respectively in the front and back photodiodes acting both as optical filters. To simulate the FRET pairs and the excitation light a chromatic time dependent combination of violet, cyan and yellow wavelengths was applied to the device. The generated photocurrent was measured under negative and positive bias to readout the combined spectra. The independent bit sequences (8 bit per wavelength channel) were chosen in order to sample all the possible chromatic mixtures for a pulse rate of 6000bps. Different wavelength backgrounds were also superimposed. Results show that under appropriated steady state optical bias the sensor will detect separately the cyan and yellow fluorescence pairs. The ratio between both intensities is obtained without optical bias, which in turn can be correlated with the distance between the fluorophores. An electrical model, supported by a numerical simulation, gives insight into the transduction mechanism.\n|17:45||Enhancement of electroluminescence efficiency for SiNx light-emitting devices via silver island film|\nAuthors : Feng Wang, Dongsheng Li, Deren Yang, and Duanlin Que\nAffiliations : State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University\nResume : Recent years, the applications of metal nanoparticles on light emitting devices (LEDs) have been received extensive attentions, which could improve their optoelectronic performance substantially. SiNx-based LED is a competitive candidate of Si-based light source for its lower carrier injection barriers and promising luminescence efficiency comparing with its counterpart SiOx-based LED. However, the extraction efficiency of electroluminescence (EL) from SiNx-based LEDs is still too low to achieve the demands of optical interconnections. The improvements of EL efficiency of SiNx-based LEDs by depositing silver (Ag) island films on and underneath the luminous layer were achieved. We attributed these improvements to the increase in light extraction efficiency, internal quantum efficiency, and carrier injection efficiency. The increase of light extraction efficiency was resulted from the surface roughening of ITO electrode, which can be estimated semiquantitatively via total integrated scatter model. While we attributed the improvement of internal quantum efficiency to the enhancement of spontaneous emission rate due to the coupling between excitons in SiNx and localized surface plasmons. An obvious blue-shift of EL peaks was observed in our SiNx-based LEDs, and a reasonable explanation on this phenomenon as well as the origin of its EL were provided. We believe that our work represents an interesting and important contribution to the general area of SiNx- or Si-based LEDs.\n|17:45||SiC multilayer structures as photonic active filters|\nAuthors : M. A. Vieira1,3, M. Vieira1,2, P. Louro1,2, V. Silva1,2, A. Fantoni1,2\nAffiliations : 1Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, email@example.com ; 2 CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal. 3 DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal\nResume : Combined tunable WDM converters based on SiC multilayer photonic active filters are analyzed. The operation combines the properties of active high-pass and low-pass filter sections into a capacitive active band-pass filter. The configuration includes two stacked p-i-n structures (p(a-SiC:H)-í'(a-SiC:H)-n(a-SiC:H)-p(a-SiC:H)-i(a-Si:H)-n(a-Si:H)) sandwiched between two transparent contacts. Transfer function characteristics are studied both theoretically and experimentally. A capacitive active band-pass filter model supports the experimental data. An algorithm to decode the multiplex signal is established. Results show that the light-activated device combines the demultiplexing operation with the simultaneous photodetection and self amplification of an optical signal. The output waveform presents a nonlinear amplitude-dependent response to the wavelengths of the input channels. Depending on the wavelength of the external background it acts either as a short- or a long- pass band filter or as a band-stop filter. A two stage active circuit is presented and gives insight into the physics of the device. The device, modeled by a circuit with variable capacitors and interconnected phototransistors through a resistor is a current-control device. It uses a variable capacitance to control the power delivered to the load acting as a state variable filter circuit. It combines the properties of active high-pass and low-pass filter sections into a capacitive active band-rejection filter.\n|17:45||Tunable reflector based on random dispersed metallic nanorods|\nAuthors : Shiwei Shu, Yangyang Li\nAffiliations : Department of Physics and Materials Science City University of HongKong\nResume : The magical optical properties of metallic nanostructures have attracted researchers' great interest——plasmonics, metamaterials, optical filters, solar cell concentrators and surface enhanced Raman scattering. As we known, rugate filters could provide a reflection peak caused by its periodicity along its longitudinal directions. In contrast to conventional dielectric rugate filters, metallic nanorods with rugate filter structures have better characteristics in high electrical conductivity, thermal conductivity and rich optical phenomena. Here, we have theoretically investigated the optical properties of metallic nanorods with rugate filter structures. The calculations are based on scattering matrix method (SMM) and finite-difference time-domain (FDTD) method. We demonstrated the tunable reflector could be tuned by periodicity in longitudinal direction, average metallic fraction ratio, amplitude of metallic fraction ratio. Furthermore, double peaks can be easily realized by adding metallic fraction functions which have different periodicities in longitudinal direction. The novel tunable reflector which can be fabricated easily nowadays has great potential applications in photoelectric devices.\n|17:45||Polarization dependant evanescent optical field interaction with atom and its effect on atomic emission spectra|\nAuthors : S. M. Iftiquar\nAffiliations : Department of Physics, Indian Institute of Science, Bangalore, India. (Present Address) School of Information and Communication Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon, 440-746, Republic of Korea\nResume : Evanescent optical field (EOF) plays an important role in localized excitation and electro-optic interaction in nano structures. Interestingly, it has been well known that sub-micron particles interact strongly with EOF. Among various factors influencing strength of this interaction, shape of the particle is one of them. In this report we present results of atomic interaction with polarized EOF. We have investigated emission spectra of rubidium (Rb) atoms in this respect. A constant frequency and intense EOF was created at a point (P) inside the glass wall of Rb vapor cell, which acts as a pump field for the Rb atoms that exist in the neighborhood of P. With the help of a frequency tunable probe laser beam, the stimulated emission spectra of the Rb atoms were detected by a photodiode, placed near the point P. We have observed that the peak intensity of emission spectra depends on polarization of the EOF, indicating effective interaction between the EOF and the Rb atoms may also depend upon the component of polarization vector, normal to the EOF creating surface. The results demonstrate that the strength of the EOF interaction with tiny particle can be controlled by altering polarization of the localized optical field.\n|17:45||Emission from an optical nanocavity coated with an ultra-thin film of fluorescent molecular dye|\nAuthors : Kieran Deasy, Stuart Brittle, Tim Richardson, David Lidzey\nAffiliations : Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom\nResume : An optical nanocavity can be created by intentionally introducing a defect into a two-dimensional photonic-crystal. Here, we have explored fabricating optical nanocavities into a free standing silicon nitride membrane, with the cavity structure based on a so-called L3 structure (3 missing holes). Using FDTD simulations, we have designed our cavities to have a fundamental mode located at approximately 660 nm. As the active emissive material in our cavity, we utilized ultra-thin films of the fluorescent organic dye Lumogen Red that were coated onto the cavity surface (and the surrounding photonic crystal) using a Langmuir-Schaefer (LS) deposition technique. This technique permits molecular monolayers to be sequentially deposited onto a surface, providing precise control over film thickness. We have explored the effect of the thickness of the deposited film on the cavity emission, and show that fluorescence emission via the cavity mode (which has a Q-factor of 1800) can be readily detected from structures coated by a single molecular monolayer of Lumogen Red. We calculate that approximately 1,000,000 molecules coat the cavity surface of such structures. We will also discuss our strategy for the creation of structures containing a single emissive molecule. Such structures may have applications as chemical sensors, or as quantum information light-sources.\n|17:45||Optical properties of pulsed-laser deposited amorphous Ge films|\nAuthors : Arsen Y. Mkrtchyan\nAffiliations : Institute of RadioPhysics and Electronics, National Academy of Sciences, Republic of Armenia;\nResume : Amorphous Ge films (thickness 25-450 nm) were obtained on the glass substrates at room temperature by the vacuum (3•10-6 mm Hg) pulsed laser (Q-switched glass: Nd3 laser: wavelength — 1.06 μm, pulse duration — 30 ns, intensity in the Ge target irradiation zone — ~109 W/cm2) deposition method in non-equilibrium conditions of growth. The optical properties of fabricated films were studied in the range of 400-1000 nm using a spectrometer Filmetrics F20. It was shown that the optical properties of the amorphous Ge films are explained by the Tauc model for amorphous semiconductors. It was also established that the optical gap of films depends on the thickness.\n|17:45||Near-field optical response of ion shaped gold nanoparticules embedded within a silica matrix. A theoretical description based on finite difference time domain scheme|\nAuthors : A. Fafin (1), J. Cardin (1), C. Dufour (1), P.-E. Coulon (2), G. Rizza (2), A. Slablab (2)\nAffiliations : (1) CIMAP, UMR CNRS/CEA/ENSICAEN/UCBN, 6 Bd Marchal Juin, 14050 Caen Cedex 4, France; (2) LSI, Ecole Polytechnique-CEA/DSM-CNRS, 91128 Palaiseau Cedex, France\nResume : Since few years, an innovative and powerful technique for manipulating matter at the nanometer scale by ion-shaping has been investigated. This technique allows the deformation of metallic spherical particles embedded within an ion-deformable amorphous host matrix into prolate nanorods and nanowires. The objective of this presentation is the theoretical study of the near-field optical response of gold nano objects within a dielectric silica matrix and compare it with the results obtained from electron energy-loss spectroscopy (EELS) experiments. We use a three dimensional finite difference time domain (FDTD) method to solve the Maxwell's equations. To model the dielectric properties of Au, we introduce a Drude-Lorentz oscillators model which is coupled to the FDTD method by a set of Auxiliary Differential Equations (ADE). Thus we can modelize the near-field response of different gold nano objects (spherical, nanorods, nanowires) in a range of energy from 0.5 eV to 6 eV and then calculate the local field enhancement factor i.e. the ratio of the amplitude of the total field over the incident field. The results for different gold nano-objects are in good agreement with the experimental results found by EELS.\n|17:45||Light control employing a diamond-based photonic crystal slab|\nAuthors : L. Ondic (1,2), M. Ledinský (1), K. Dohnalová (3), K. Kusová (1), O. Cibulka (1), O. Babchenko (1), A. Kromka (1), B. Rezek (1) and I. Pelant (1)\nAffiliations : (1) Institute of Physics, Academy of Sciences of the Czech Republic, v.v.i., Cukrovarnická 10, CZ-162 53, Prague 6, Czech Republic; (2) IPCMS–DON Unité Mixte, UMR 7504, CNRS–ULP, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France; (3) Van der Waals–Zeeman Institute, University of Amsterdam, Valckenierstraat 65, NL-1018 XE Amsterdam, The Netherlands\nResume : Diamond is a material with many potential optical, electronic and thermal applications. Nowadays, due to developed techniques of its preparation and patterning, its applicability in photonics is considered. Here, we present a detailed analysis of photonic properties of a nano-diamond photonic crystal (PhC) consisting of a 270 nm thick nanocrystalline diamond layer with diamond columns (diameter 280 nm, height 150 nm ) prepared on the top and periodically ordered into the square lattice (lattice constant 350 nm). Photonic band diagram of the structure leaky modes is determined from angle and spectrally resolved transmission measurements. The results of measurements are in excellent agreement with a simulated photonic band diagram in broad spectral region showing that a strong light-matter interaction occurs in the PhC. The existence of leaky modes allows us to increase the extraction efficiency of the intrinsic diamond photoluminescence (PL) from color centers present in the PhC. Up to 6-fold enhancement occurs in the visible region which may be employed when constructing diamond LEDs or waveguide couplers/outcouplers. We also demonstrate that the PhC could be used to control shape of the PL spectra of quantum dots deposited on its surface. It is pointed out that optical losses related with the absorption mechanism and scattering present in nano-diamond influences light interacting with the periodicity and must be taken into account when designing such a structure.\n|17:45||Surface role in efficient light emission from organically terminated Si quantum dots|\nAuthors : K. Dohnalova1, H. Zuilhof2, T. Gregorkiewicz1\nAffiliations : 1 Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, NL- 1098 XH Amsterdam, The Netherlands; 2 Laboratory of Organic Chemistry, Wageningen University, Dreijenplein 8, 6703 HB Wageningen, The Netherlands\nResume : Surface properties have crucial influence on the photoluminescence (PL) from small quantum dots (QDs). This effect is further enhanced in Si-QDs by the low optical activity of the core due to the indirect band-gap. This has been illustrated and understood for systems of oxidized Si-QDs, however, up to now, effect of other terminations, such as nitrogen or carbon, remains unclear. It has been shown that the PL lifetime in Si-QDs terminated by alkyl molecules becomes three orders of magnitude faster than expected for the intrinsic excitonic emission. This cannot be explained by existing Si-QDs models. In this contribution, we show that the fast PL in the blue-green spectral region from wet chemically synthesized small Si-QDs (2-3 nm) terminated by alkyl molecules, takes place on both the ensemble and the single dot levels, which directly confirms its intrinsic Si-QD origin. Moreover, using theoretical modeling, we present evidence for that this emission arises due to efficient phonon-less radiative recombination.\n|17:45||Size-Scaling in Optical Trapping of Silicon Nanowires|\nAuthors : Alessia Irrera1, Pietro Artoni2,3, Rosalba Saija4, Pietro G. Gucciardi1, Maria Antonia Iatì1, Ferdinando Borghese4, Paolo Denti4, Fabio Iacona2, Francesco Priolo2,3, and Onofrio M. Maragò1\nAffiliations : 1CNR-IPCF, Istituto per i Processi Chimico-Fisici, I-98158 Messina, Italy 2MATIS-IMM CNR, I-95123 Catania, Italy 3Dipartimento di Fisica e Astronomia, Università di Catania, I-95123 Catania, Italy 4Dipartimento di Fisica della Materia e Ingegneria Elettronica, Università di Messina, I-98166 Messina, Italy\nResume : We investigate size-scaling in optical trapping of ultrathin silicon nanowires showing how length regulates their Brownian dynamics, optical forces, and torques. Force and torque constants are measured on nanowires of different lengths through correlation function analysis of their tracking signals. Results are compared with a full electromagnetic theory of optical trapping developed in the transition matrix framework, finding good agreement1. 1 Irrera et al., Size-scaling in optical trapping of silicon nanowires, Nanoletters 2011, 11, p 4879\n|17:45||Garnets nanophosphors prepared by sol-gel method for application in optoelectronics|\nAuthors : Vasilica Schiopu, Alina Matei, Ileana Cernica\nAffiliations : National Institute for Research and Development in Microtechnologies, IMT Bucharest\nResume : Today, the most known system to obtain the white light-emitting device is based on the combination of a yellowish phosphor and a blue chip. The phosphors from garnets class are still the most known and efficient for use in optoelectronics applications. In this paper is presented the same sol-gel method as a route to producing two diffrent types of garnets phosphors at nanoscale. The phosphors nanoparticles and the formation of the garnet phase have been obtained at lower temperature then conventional methods. The chemical evolution, structure and morphology of rare earth-doped YAG (yttrium aluminum garnet) and TAG (terbium aluminum garnet) were studied.\n|17:45||Optical filter design using background wavelength processing techniques|\nAuthors : M. Vieira1,2,3, M. A. Vieira1,2, P. Louro1,2, A. Fantoni1,2, A.S. Garção2,3\nAffiliations : 1Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal 2 CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal. 3 DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal\nResume : Experimental and simulated results are compared to validate the use of SiC multilayered structures in applications where gain compensation is needed or to attenuate unwanted wavelengths, as well as in building blocks for band-pass filters used for channel or band selection in WDM communication systems. An electrical model supports experimental results Color pulsed communication channels are transmitted together under different background wavelength. Amorphous SiC tandem heterostructures are used to filter a specific band. Results show that under controlled wavelength backgrounds the device sensitivity is enhanced in a precise wavelength range and quenched in the others, tuning or suppressing a specific band. Under red irradiation the transfer function has a higher gain at short wavelengths than at longer wavelengths acting as a short-pass filter whatever the frequency. Under green the device is a band-rejection active filter that works to screen out wavelengths that are within the medium range (550nm), giving easy passage at all wavelengths below (450 nm) and above (650 nm). Under blue steady state optical bias the device behaves as a long-pass active filter that transmits and enhances the long wavelength photons (red and green channels) while blocking the shorter wavelengths (blue channel). Particular attention is given the transition of a short-pass optical filter to a band-rejection filter, which allows any photo capacitance response to be provided.\n|17:45||Enhanced blue emission of GaN:Eu2 with increasing SiO2 nanoparticles under a flowing NH3 atmosphere|\nAuthors : Bong Kyun Kang, Myung-Oh Kim, Dae Ho Yoon\nAffiliations : Sungkyunkwan University\nResume : In recent years, III-nitrides nanostructures have attracted extensive attention due to their unique electronic and optical properties. Gallium nitride (GaN) has a direct wide bandgap of 3.4 eV at room temperature, and is a promising candidate material for short wavelength optoelectronic devices, such as light emitting diodes and laser diodes, as well as high power and high temperature operation devices. Forthermore, rare earth-doped GaN have a promising applications as multiple color electroluminescent (EL) devices due to the chemical stability and a large incorporation of rare earth dopants such as Eu, Er, Tb, Tm. In case of Eu ions in host materials, it has a distinctive optical property which was commonly observed strong and shape emission at around 612 nm by the f-f transitions of Eu3 ions, on the other hand, the Eu2 ions showed broad blue emission at around 450 nm, depending on the environments around the Eu ions such as in aluminates, silicate matrices. Despite the large number of reports on the synthesis of rare earth doped GaN over the past few years, most reports focused on the rare earth doped GaN film and nanowires by MOCVD, MBE, MOVPE and thermal CVD. Compared with film and nanowires, GaN nanopowder could be alternative hybrid integration materials with a variety of optical properties because of the flexible powder form and controlled shape or size, as well as low fabrication cost. GaN:Eu2 added SiO2 nanoparticles were synthesized successfully nitridation of Eu3 -doped gallium oxide with SiO2 nanoparticles. We report on the synthesis and characterization of the GaN:Eu2 added SiO2 nanoparticles as a function of SiO2 amounts. The structural and optical properties of GaN:Eu2 added SiO2 nanoparticles were examined as well.\n|17:45||Indium-zinc-oxide transparent electrode for nitride-based light-emitting diodes|\nAuthors : S. Mizutani,S. Nakashima, M. Iwaya, T.Takeuchi, S. Kamiyama, I. Akasaki , T. Kondo, F.Teramae, A. Suzuki, T. Kitano, M. Mori, M.Matsubara\nAffiliations : Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya 468-8502, Japan EL-SEED, Corp., Furocho, Chikusa-ku, Nagoya 464-8601, Japan Idemitsu Kosan Co., Ltd. 1280, kamiizumi, sodegaura, 299-0293, Japan\nResume : In general nitride-based light-emitting diodes (LEDs), an indium-tin-oxide (ITO) thin film is used as a transparent ohmic contact to p-GaN, and it contributes to an enhancement of light extraction efficiency. However, the ITO has a microcrystalinity, so that it makes difficult to form nano-patterning for further improvement of the light extraction efficiency. In this paper, a new transparent electrode material, amorphous indium-zinc-oxide (IZO) is proposed for micro-fabrication. A 300 nm-thick IZO (In2O3 : ZnO=0.893:0.107, wt%) film was deposited on p-GaN and sapphire substrates by a reactive sputtering technique. A voltage versus current characteristic showed ohmic property, and contact resistance was 9.4×10^-4 ohmcm^2, which is comparable to that of ITO. And other physical properties such as a resistivity of 2.5×10^-4 ohmcm and a high transmittance of more than 80% at 450 nm were obtained with IZO/sapphire samples. These properties show sufficient potentials of IZO as a transparent electrode material to nitride-based LEDs. In addition, since the IZO film has an amorphous phase with a mirror-like surface, formation of fine nano-patterns is possible. We succeeded to form a moth-eye structure with a pitch of 460 nm to IZO transparent contact on a nitride-based LED, and it is expected higher output power than the LED before the moth-eye structure formation.\n|17:45||Electroluminescent properties of third generation fluorene-carbazole dendrimers|\nAuthors : Ozlem Usluer,1* Serafettin Demic,2 Mahmut Kuş,3 Yasin Kanbur,4 Eckhard Birckner,5 Daniel A. M. Egbe6 and Niyazi Serdar Sariciftci6\nAffiliations : 1Department of Chemistry, Science Faculty, Mugla University, 48000, Mugla (Turkey) 2Solar Energy Institute, Ege University, Bornova, Izmir (Turkey) 3Chemical Engineering Department and Avdanced Technology R&D Center, Selcuk University, Konya (Turkey) 4Department of Metallurgical and Materials Engineering, Faculty of Engineering, Karabük University, Karabuk (Turkey) 5Institute of Physical Chemistry, Friedrich Schiller-University Jena, Lessingstrasse 10, 07743, Jena (Germany) 6Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz (Austria)\nResume : This work presents the synthesis, characterization and OLED applications of hole-transporting dendrimeric molecules (OFC-G3, OFCT-G3, SBFC-G3, SBFCT-G3) containing dioctylfluorene and spirobi(fluorene) as the core unit and different numbers of carbazole and thiophene moieties as the peripheral groups. The chemical structure of the dendrimers were confirmed by 1H NMR, 13C NMR, FTIR and MALDI-TOF. The photophysical properties were investigated by UV-Vis absorption and photoluminescence measurements in dilute chlorobenzene solution as well as in thin film. Fluorescence kinetics measurements in solution were performed. The electrochemical behavior of the dendrimers were investigated by cyclic voltammetry (CV). Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to study the thermal behavior of the materials. OLED devices were fabricated with a configuration of ITO/PEDOT:PSS/Dendrimer/Alq3/LiF:Al where OFC-G3, OFCT-G3, SBFC-G3 and SBFCT-G3 were used as hole-transporting layer, Alq3 as a light emitting and electron-transporting layer, ITO and LiF:Al as anode and cathode, respectively. All dendrimers exhibited bright green light emission between 512-528 nm and SBFCT-G3 showed maximum performance with a turn-on voltage of ~2.5 V and maximum luminance of 16000 cd/m2. *Özlem Usluer, Tel.: +90 252 211 15 62, FAX: +90 252 211 14 72 Email: firstname.lastname@example.org, email@example.com\n|17:45||Surface modification of CdSe/ZnS quantum dots and layer-by-layer deposition of quantum dots|\nAuthors : Eun Yee Ko1,2, Ju-Won Jeon2, In Hwan Lee2, and Joo In Lee1,*\nAffiliations : 1Nano imaging technology center, Korea Research Institute of Standards and Science, Daejeon, Korea 2School of Advanced Materials Engineering and Research Center of Advanced Materials Development, Chonbuk National University, Jeonju, Korea\nResume : This paper reports on the modification of ZnS capped CdSe quantum dots (QDs) surface with polyelectrolyte coating and monolayer subsequent layer-by-layer (LBL) deposition. The initial capping ligand is replaced by a hydrophilic thiol-containing ligand (MAA) which renders the QDs negatively charged in water. Subsequent layers of positive (PAA) is deposited on the QD surface, thereby modifying the surface charge. While many deposition methods have been demonstrated, it is still remain as a challenging to monolayer on substrate. In order to fabricate the QD-LED, we explored the formation of charge-driven LBL assemblies of cationic-anionic QD bilayers on anionic GaN substrate. The modified QDs were deposited on GaN substrates to produce self-assembled layer-by-layer deposition (QDs-MAA/QDs-PAA/GaN substrate), as revealed by photoluminescence. As a result of PL, we observed QDs emission peak and phonon replicas. This simple and robust technique could be chemically modified QD surfaces by controlling the external surface charge and thickness of the deposited layers.\n|17:45||Hyperspectral near-field imaging for nanophotonics|\nAuthors : Jean Dellinger, Loic Lalouat, Benoît Cluzel, Frédérique de Fornel\nAffiliations : Groupe d'Optique de Champ Poche Université de Bourgogne\nResume : The scanning near-field optical microscopy (SNOM) is used to analyze optical phenomena at the sub-wavelength scale such as light localization and propagation in photonic crystals or plasmonic devices. In any case, SNOM experiments rely on the positioning of a local probe in the optical near field of a given structure and on the detection of the surrounding evanescent waves. Depending on the nature of the probe or on the optical detection method, the detected physical properties are the spatial distributions of the amplitude and phase or the intensity of the electric and magnetic components of the probed field. In this paper, we present the implementation of an innovative hyperspectral near-field imaging method which aims to detect both spectral and spatial properties of an optical nanosystem at the subwavelength scale. The presented method provides a batch of images over a broad spectral range at visible; near-infrared and telecommunication wavelengths. Using this technique, we will report here the near-field observations through the spectrum of the emblematic electromagnetic phenomena involved in photonic crystals and plasmonics such as light waveguiding, trapping or beam shaping.\n|17:45||Waveguiding and light confinement in gallium oxide nanowires|\nAuthors : I. López, E. Nogales, B. Méndez and J. Piqueras\nAffiliations : Departamento de Física de Materiales, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, 28040 Madrid, Spain\nResume : Gallium oxide micro- and nanostructures have been used to demonstrate waveguiding behavior and light confinement of excited luminescence enabling the appearance of optical resonant modes. Cr3+ ions exhibit a well-known red emission and were used as luminescence centers in Ga2O3 nanostructures. The strong electron-phonon coupling in gallium oxide leads to a broad red emission band along with characteristic sharp lines at room temperature. This feature would be interesting for applications of these structures as tunable lasers. The experiments have been carried out in a scanning electron microscope operating in the angle resolved cathodoluminescence (ARCL) mode. An optical confocal Raman microscope with the possibility of recording data from a deviated point respect to the excitation one has also been used to explore the light coupling in crossing and interconnected nanowires. Resonances in the luminescence spectra have been observed and the results were explained in the framework of light confinement into the nanostructures.\n|17:45||Electroluminescence from SOI photonic crystals cavities at telecommunication wavelengths|\nAuthors : P. Cardile1, A. Shakoor2, R. Lo Savio3, S. L. Portalupi3, D. Gerace3, K. Welna2, S. Boninelli1, G. Franzò1, F. Priolo1, T. F. Krauss2, M. Galli3, and L. O’Faolain2\nAffiliations : 1) CNR-IMM MATIS and Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy 2) SUPA, School of Physics and Astronomy, University of St. Andrews, Fife KY16 9SS, St. Andrews, United Kingdom 3) Dipartimento di Fisica “A. Volta,” Università di Pavia, 27100 Pavia, Italy\nResume : Photonic crystals represent an important tool in photonics, for the very high number of applications in which they are used. In this work we realized an electroluminescent Silicon pin-like device based on L3 photonic crystal membraned nanocavities, in which the Purcell effect is used. We present and compare photo- and electro-luminescence from our devices, in which hydrogen-related defects are introduced by a plasma treatment in a reactive ion etching system. We believe that the recorded luminescence is related to the presence of these defects. The luminescence shape is broad and it falls in the near infrared (around 1.5 um), thus being promising for feasible applications. We show also that it is strongly enhanced in the L3 cavities, due to Purcell effect. TEM measurements were done in order to analyze the structural features of plasma-induced defects and to correlate them to the luminescence. We also performed an electrical characterization of the devices, demonstrating a good carrier injection. We believe that our study is a promising approach to a future Silicon nanolaser.\n|17:45||Extending a Parabolic Mirror – Scanning Near-Field Optical Microscope (PM-SNOM) with the functionality of a Scanning Tunneling Microscope (STM)|\nAuthors : Jan Rogalski, Kai Braun, Dai Zhang, Alfred Meixner\nAffiliations : Eberhard Karls University Tuebingen -Institute of Physical and Theoretical Chemistry;\nResume : Scanning near-field optical-Microscopes are capable of breaking the far field resolution limit by analyzing the evanescent light emitted from a small region between the sample surface and a metal-tip. Our group has longstanding experience in operating a PM-SNOM that uses a parabolic mirror (PM) as focusing element. Recently this microscope has been extended by introducing scanning tunneling microscope (STM) functionality. The newly added module exhibits a high position-accuracy and –stability coupled with a low fluctuation rate of the tunneling current. The implementation of the STM-module into a PM-SNOM setup furthermore allows for the simultaneous capturing of the optical signal and the corresponding local spectroscopic information. Enhanced Raman spectroscopy measurements of 1H-Benzotriazole (BTAH) on a 200 nm thin gold-layer are used to demonstrate the functionality of the STM-module, which displays a Raman enhancement factor of ~2•10^5. Additionally, topographic measurements on a thin gold-layer with the module result in images typical for thin layers of evaporated gold. The concurrently obtained optical signal shows the shinning-edge effect on protrusions of the rough sample surface. The extended PM-SNOM is used to examine pristine graphene, graphene – molecule interactions in a graphene-pentacene system, as well as graphene edges and defects. First confocal and near-field measurements of graphene obtained with the setup will be shown.\n|17:45||Controlling the emission rate of Er3+ ions by the interaction with thin films or plasmonic nanostructures|\nAuthors : B. Kalinic, T. Cesca, G. Perotto, C. Scian, P. Mazzoldi, G. Mattei\nAffiliations : CNISM and University of Padova, Dept. of Physics and Astronomy, via Marzolo 8, I-35131 Padova (Italy)\nResume : The variation of the local density of states and/or excitation of surface plasmons in proximity of a metal or dielectric surface can be used to enhance and control the emission rate of Er-doped materials for nanophotonic or plasmonic devices. In the present work we study the modification of the radiative lifetime of a rare earth emitter (Er3+ ion) in silica through the interaction with a plasmonic or a dielectric thin film. A thin Er-doped silica film obtained via magnetron co-sputtering was coated with noble metal (Ag and Au) or dielectric (TiO2) films. Photoluminescence (PL) measurements have showed in both cases a strong decrease of the Erbium lifetime for the radiative transition at 1540 nm (up to 3 times) and a clear decrease of the interaction with the addition of a silica spacer between the film and the active layer up to 250 nm. Moreover, the effect on the PL emission of the continuous films has been compared with that of nanostructured plasmonic architectures like nanohole arrays (NHA) or nanotriangles arrays (NTA) deposited by nanosphere lithography and/or reactive ion etching on top of the active layer. We have demonstrated that a good control over the radiative properties of the emitter can be achieved by a careful design of the nanostructures.\n|17:45||Site specific (EF)TEM characterization of Er3+ implanted silicon nanoelectro-optical devices|\nAuthors : L. López-Conesa, J.M. Rebled, S.Estradé, Y. Berencén, F. Ferrarese Lupi, J.M. Ramírez, B. Garrido, J.-M. Fedeli and F.Peiró\nAffiliations : MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain and Institut de Ciència de Materials de Barcelona (ICMAB), CSIC, Campus UAB, Bellaterra 08193, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain and Scientific and Technological Centers, (CCiT), University of Barcelona, Solé i Sabarís 1, 08028 Barcelona, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain; CEA, Léti, Minatec campus 17 rue des Martyrs, 38054 Grenoble cedex 9, France; MIND-In2UB, Electronics Department, University of Barcelona (UB), Martì i Franquès 1, Barcelona 08028, Spain\nResume : Silicon nanophotonics is a highly active field [1-3]. The possibility to integrate optical devices in microelectronic chips using the cheap semiconductor fabrication methods is a great advantage. However, the main drawback is the difficulty to obtain efficient light emission from bulk Si-based materials. The presence of Si nanocrystals in SiO2 matrices has been proved to increase this efficiency in the visible light range, and the implantation of rare earths ions allows to shift this emission towards de 1550nm wavelength of the telecomunications range. Combining these active materials with the optical properties of circular resonant cavities it is possible to achieve a high optical gain. In this work two different kinds of devices, a slot ring resonant cavity coupled to a slot waveguide and a CMOS transistor, have been studied by Energy Filtered Transmission Electron Microscopy (EFTEM). Samples for TEM were prepared using the lift-out technique in a Focused Ion Beam (FIB) equipment. This sophisticated sample preparation method is necessary in order to select the specific region of interest in the devices. Quality of the fabrication process, morphology and composition of the devices is assessed. Two different strategies in the ring/waveguide active layers were studied. The first one consisted in a Si-rich SiO2 (SRO)/SiO2 multilayered structure with embedded Si nanocrystals. EFTEM filtering around the plasmon peaks of crystalline Si and SiO2 confirmed the successful growth of the structure and the presence of nanocrystals in the SRO. The second one consisted in a continuous High Temperature Oxide (HTO) top layer. Erbium implantation in this second case resulted in cluster formation a few nanometers inside the layer. In the CMOS transistor, a similar clusterization of Er implantation was found in the channel section.  L. Pavesi, S. Gaponenko, and L. Dal Negro, eds. Towards the First Silicon Laser, NATO Science Series (Kluwer, 2003), Vol. 93.  F. Ferrarese Lupi, et. al, Optics letters / Vol. 36, No. 8 / April 15, 2011  R. J. Walters, G. I. Bourianoff, and H. A. Atwater, Nat. Mater. 4, 143 (2005)\n|17:45||Control of the Er-Er interactions for nanophotonic applications|\nAuthors : P. Cardile1, M. Miritello1, R. Lo Savio1 and F. Priolo1\nAffiliations : 1) CNR-IMM MATIS and Dipartimento di Fisica e Astronomia, Universit?i Catania, via S. Sofia 64, 95123 Catania, Italy\nResume : Rare earths are well known for their optical properties: they emit photons of many wavelengths, due to their 4f shell and therefore they have many applications in light emitting devices. Metal particles, placed close to these rare earth ions, strongly influence their emission, both increasing the impinging electric field and modifying the decay rate. Among the rare earths, Erbium is one of the most studied, emitting photons at 1.55 um, a strategic wavelength for telecommunications. In this work we realized thin films of Er-compounds, grown by magnetron co-sputtering, such as Y-Er and Yb-Er silicates, in which the amount of rare earth can be continuously tuned from 1020 to 1022 at/cm3. In this extended range of concentrations the Er-Er interactions, such as cross-relaxations, quantum cutting or upconversion, can be perfectly controlled. These materials are very interesting for practical applications, since they are compatible with the Si platforms and they have a huge amount of active emitters. This is the key point for having strong photoluminescence intensities. Even higher optical efficiencies and longer lifetimes are expected, thanks to the stronger localized electromagnetic field and the modification of the decay rate, by coupling these emitters to metallic nanoparticles. Therefore we propose Er-compounds as potential candidate materials for plasmonic applications.\n|17:45||Nanostars as nonlinear plasmonic rulers|\nAuthors : M. Kuttge (1), L. Rodriguez-Lorenzo (2), R. Alvarez Puebla (2), L. Liz Marzan (2), C. David (3), F. Javier Garcia de Abajo (3), N.F. van Hulst (1)(4)\nAffiliations : (1) ICFO – The Institute of Photonic Sciences, Castelldefels (Barcelona), Spain; (2) Departamento de Quimica-Fisica and Unidad Asociada CSIC-Universidade de Vigo, Vigo, Spain; (3) Instituto de Quimica-Fisica - CSIC, Madrid, Spain; (4) ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain\nResume : We demonstrate a nonlinear plasmonic ruler based on subnanometer distance control of plasmonic nanogaps between gold nanostars and gold surfaces. Furthermore, we show efficient coupling between light and surface plasmons mediated by nanostars. Nanostars were attached to the surface using dithiol linkers and the second harmonic generation was measured upon illumination by fs-laser pulses. By varying the linker molecules were were able to change spacing from 1.5 nm to below 1 nm and observe a resulting five times increase of the second harmonic generation. Boundary element method calculations of the SHG confirm that this effect is due to increase in the field enhancements at the star-tip closest to the surface, as the nanostars are placed closer to the surface. Additionally, we present measurements of the surface plasmon propagation in random arrays of gold nanostars placed on a gold surface. SPPs are excited by focusing a fs-laser beam onto single nanostars or grating couplers, which were created by focused ion-beam milling. The SPPs propagate along the surface and excite other nanostars, whose two-photon luminescence was imaged using a CCD camera. From these measurements we were able to extract coupling parameters of nanostars between SPPs and light and their respective scattering length.\n|17:45||HRTEM microstructure study and PL properties of Sn1-xMxO2 (M = V, Cr and Mn) nanoparticles|\nAuthors : M.A. Peche-Herrero1, D. Maestre2, J. Ramirez-Castellanos1, A. Cremades2, J. Piqueras2, and J. Gonzalez-Calbet1.\nAffiliations : 1. Department of Inorganic Chemistry I, Facultad de Cc. Qu?cas, Universidad Complutense de Madrid, Madrid (Spain). 2. Department of Material Physics, Facultad de Cc. F?cas, Universidad Complutense de Madrid, Madrid (Spain).\nResume : Tin dioxide, SnO2, with rutile structure have been widely used as catalysts for CO oxidation, dye-sensitised solar cells and semiconductor gas sensors, due to to their electrical, optical, electrochemical properties and high chemical stability. Many techniques have been utilised to prepare nanopowders such as sol–gel, and hydrothermal methods. One approach to modify the optical properties of the nanoparticles is to introduce a small amount of a dopant inducing tuneable luminescence emission According to these ideas, we have prepared Sn1-xMxO2 (M = V, Cr and Mn, 0≤x≤0.15) rutile solid solutions by a polymeric precursors method at 450 oC. The unit cell of SnO2 rutile structure is tetragonal (S.G. P42/mnm) with lattice parameters a=4.74 and c= 3.19 A, as confirmed by X ray diffraction (XRD). The average grain size of the prepared SnO2 nanoparticles is about 7 nm, as calculated by using the Scherrer formula. The luminescence properties of these samples have been analyzed by means of cathodoluminescence in a scanning electron microscope (SEM). Tuneable emission in the visible and the near-infrared range has been observed as a function of the dopant and the defects in the host lattice. The resulting sample was characterized and analyzed by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and high-resolution transmission electronmicroscopy (HRTEM). Light-emitting properties were measured by PL spectra.\n|17:45||Experimental evidences of energy transfer between Si nanoclusters and Er3+ ions under electrical pumping|\nAuthors : J.M. Ramírez1, F. Ferrarese Lupi1, O. Jambois1, Y. Berencén1, D. Navarro-Urrios1,4, A. Anopchenko2, A. Marconi2, N. Prtljaga, A. Tengattini2, , L. Pavesi2, J-P. Colonna3, J-M. Fedeli3 and B. Garrido1.\nAffiliations : 1 Departament d'Electrònica, Universitat de Barcelona, Carrer Martì i Franquès 1, Barcelona 08028, Spain. 2 Nanoscience Laboratory, Department of Physics, University of Trento, Via Sommarive 14, Povo (Trento) 38123, Italy. 3 CEA, Léti, Minatec campus 17 rue des Martyrs, 38054 Grenoble cedex 9, France. 4 Catalan Institute of Nanotechnology (CIN2-CSIC), Campus UAB, Edifici CM3, 08193 Bellaterra, Spain\nResume : The development of efficient silicon based light sources emitting at 1.5 um has been under intense investigation for several years, providing important breakthroughs towards their implementation in optical interconnects and telecommunications . In that context, Er3+ doped devices have demonstrated to be a good candidate, especially when sensitized with Si-nanoclusters (Si-ncs). Nevertheless, while such sensitization has been demonstrated under optical pumping , the efficient coupling between silicon nanocrystals and Er3+ ions under electrical pumping is still a matter of concern as no strong evidences have been elucidated yet. In this work, Si-based metal-oxide-semiconductor light emitting devices containing Er3+ ions embedded in either stoichiometric SiO2 or silicon-rich silicon oxide layers have been studied. An electro-optical characterization has been performed first under direct current regime (DC) and compared with the ones obtained by means of a square alternate current excitation signal (AC). Two different EL excitation mechanisms have been observed for the coupled system with Si-ncs and Er3+: i) Indirect excitation: cold carriers excite Si-ncs by bipolar injection and the energy is transferred to Er3+ and ii) Direct excitation: Er3+ is directly energized by hot energetic carriers through impact excitation. Moreover, we demonstrate the existence of a narrow voltage window, where the Er3+ excitation mechanism changes from energy transfer to direct impact excitation.  O. Jambois, F. Gourbilleau, A. J. Kenyon, J. Montserrat, R. Rizk, and B. Garrido; 2010 Opt. Express 2230, (2010).  D. Navarro-Urrios, A. Pitanti, N. Daldosso, F. Gourbilleau, R. Rizk, B. Garrido, and L. Pavesi Phys. Rev. B 79, 193312 (2009)\n|17:45||The transition from surface defect passivation to donor activation in size controlled Si-nanocrystals doped with phosphorus|\nAuthors : N. Papachristodoulou, I. F. Crowe, M. P. Halsall, P. Yang, R. M. Gwilliam, M. Shah, A. J. Kenyon, O Hulko, A.P. Knights\nAffiliations :  Photon Science Institute, Alan Turing Building, University of Manchester, Manchester M13 9PL, UK  Surrey Ion Beam Centre, Advanced Technology Institute, University of Surrey, Guildford, GU2 5XH, UK  Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, UK  Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton L8S 4L7, Ontario, Canada\nResume : We report a comparative study of the integrated PL intensity and emission energy for phosphorus (P) doped and intrinsic Si-nanocrystals (Si-nc). Our data suggest that the level of donor activation is highly sensitive to the Si-nc size distribution. For example, doped Si-ncs, with a relatively small mean size, exhibit an enhanced, blue-shifted PL, compared with intrinsic Si-ncs. This suggests that the P atom preferentially performs a passivating function, compensating for dangling-bond defects (Pb-centres), as previously evidenced by electron paramagnetic resonance (EPR) studies [1, 2]. As the Si-nc size increases, however, the ionization of P donors opens up an efficient, non-radiative Auger recombination channel for photo-excited carriers and the PL is quenched. Evidence for this can also be found in previous EPR and optical absorption data, both of which indicate an increase in the free carrier concentration with P doping [3, 4]. Controlling the size distribution, e.g. by rapid thermal processing, therefore provides a means for controlling the dopant activation in future silicon nano-structured electronic devices. References  Fujii et al, Journal of Applied Physics 87, 1855 (2000)  Stegner et al, Physica B: Condensed Matter, 401-402, 541 (2007)  Sumida et al, Journal of Applied Physics 101, 033504 (2007)  Mimura et al, Physical Review B 62, 12625 (2000)\n|17:45||Nanooptical study of plasmonic nanoantennas by EELS and Cathodoluminescence spectroscopy|\nAuthors : Zackaria Mahfoud, Odile Stefan, Anne-laure Baudrion, Jérôme Plain, Mathieu Kociak\nAffiliations : Laboratoire de Physique des Solide, Orsay France and Université de Technologie de Troyes, Troyes France; Laboratoire de Physique des Solide, Orsay France; Université de Technologie de Troyes, Troyes France; Université de Technologie de Troyes, Troyes France; Laboratoire de Physique des Solide, Orsay France\nResume : Plasmonic devices such as optical antennas operating in the visible region of the electromagnetic spectrum are constrained to spatial dimensions of a few nm to hundreds of nm. In particular, dimer nano-rod antennas have attracted increasing interest in recent years. Indeed, the coupling of rods induces modifications in the optical response which can be precisely adjusted by controlling the dimensions of the gap. The energies and intensities of the plasmon modes and the electric field associated can all be affected. Since most of these effects occur at the sub-wavelength scale, it is necessary to use techniques which allow us to probe this type of object at the nanometer scale. We have performed Electron Energy-Loss Spectroscopy (EELS) and Cathodoluminescence (CL) spectral imaging in the UV-Vis-IR regime in a Scanning Transmission Electron Microscope (STEM) to study plasmons at nanometer spatial resolution on several types of coupled and uncoupled nanorods, either lithographed or chemically grown. The results of such experiments can be analyzed to map the spatial distribution of the energies, intensities and full width at half-maximum of the plasmons on nanoparticles. As an example EELS spectra acquired on a dimer nano-rod antenna show a blue-shift in the energy of the first plasmon peak inside the gap in comparison with the peak observed at the outer edge of the dimer, the shift is due to the coupling of the plasmons of the rods.\n|17:45||High optical quality width-modulated waveguide AlN photonic crystal nanocavities|\nAuthors : D.Sam-Giao1, D. Néel2, M. J. Rashid3, C. Brimont4, T. Bretagnon4, M. Mexis4, X. Checoury2, S. David2, F. Semond3, B. Gayral1, P. Boucaud2, T. Guillet4\nAffiliations : 1 CEA-CNRS group “Nanophysique et semiconducteurs,” INAC-SP2M, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France 2 Institut d’électronique Fondamentale, UMR CNRS 8622, Université Paris Sud-11, F-91405 Orsay, France 3 CRHEA-CNRS, Rue Bernard Grégory, 06560 Valbonne, France 4 Université Montpellier 2, Laboratoire Charles Coulomb, CNRS UMR 5221, F-34095 Montpellier, France\nResume : Due to their wide bandgap and large excitonic binding energy, nitride semiconductors are good candidates for UV microlasers or room temperature strong coupling in strongly confining microcavities. Nitrides are however very difficult to process, so that the fabrication of high quality photonic crystals is very challenging. We report on the first top-down fabrication of high quality suspended width-modulated waveguide photonic crystal cavities in the low-index material AlN. The 70 nm thick AlN slab is grown by ammonia-source molecular beam epitaxy on a Si (111) wafer, with one layer of GaN quantum dots grown at the center of the slab. The structures are then defined by e-beam lithography (typical periodicity 170 nm and hole diameter 85 nm) and dry-etched by inductively coupled plasma. The membranes are then released by selective etching of the Si substrates. Photonic crystal cavities were then studied by room-temperature microphotoluminescence (typical spot size: 1 µm). The best results were obtained on cavities inside a W1 photonic crystal waveguide, obtained by shifting a few holes away from the waveguide line defect. Quality factors in the 3000-4000 range were routinely obtained in the 3.2-3.5 eV (350-390 nm) range, the best result being 4500 - twice the maximum value obtained on L3 cavities with the same process. FDTD simulations reproduce well the spectral features we observe. Prospects for microlasing and strong coupling will be discussed.\n|17:45||Enhancement of negligible transmission band using hybrid periodic/Fibonacci one dimensional photonic crystal in near infrared and microwave domains|\nAuthors : Abir Mouldi; Mounir Kanzari\nAffiliations : Laboratoire de Photovolta?e et Mat?aux Semi-conducteurs -Ecole Nationale d'Ing?eurs de Tunis\nResume : The combination of periodic and quasi periodic one dimensional photonic band gap structures was the subject of many works. The approach has been generally explored to design resonant microcavities with strong mode localization or polychromatic filters. In this work, we propose to use this approach to enlarge the photonic band gap under grazing angles. We demonstrate the efficiency of the hybrid structure of the type Bragg mirror-(Fibonacci)S-Bragg mirror, with S is the repetition number of the Fibonacci block, to enhance the zero transmission band through the one dimensional photonic crystal in comparison with the periodic structure and the quasi periodic structure built according to the pattern of the Fibonacci sequence. The efficiency of the configuration is proved in microwave domain and in the near infra red range. In microwave domain, we achieve under normal incidence a broad band which covers almost all the domain, but the omnidirectional Photonic Band Gap exists only for angles below 57°. In the near infra red, the proposed design exhibits a large photonic band gap at any angle of incidence under the two modes of polarization, Transverse Magnetic and Transverse Electric. The achieved omnidirectional photonic band gap is larger than that of the periodic structure with an increasing ratio of 4.3 and it covers all the optical telecommunication wavelengths 0.85, 1.3 and 1.55 µm. The proposed structure is a quarter wavelength mirror of only 53 layers. So, unlike the previous devices, the structure is simple to fabricate and it shows very interesting optical properties. To deepen the study, we investigate the sensitivity of the system optical response to the configuration parameters which are the repetition number S, the generation number of the Fibonacci sequence and the period’s number of the two sidewall periodic stacks. The proposed system is a good candidate for the improvement of optoelectronic devices.\n|17:45||Near-field study of the generation and launching of surface plasmons at Telecom wavelengths|\nAuthors : L. Greusard*1, R. Rungsawang1, Y. De Wilde1, A.2, D. Costantini2, R. Colombelli2, J. Decobert3, J.-L. Gentner3, A. Accard3, G. H. Duan3\nAffiliations : 1 Institut Langevin, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France; 2 Institut d’Electronique Fondamentale, Université Paris Sud and CNRS, UMR8622, 91405 Orsay, France; 3 III-V Lab, Joint lab of 'Alcatel-Lucent Bell Labs France 'Thales Research and Technology' and 'CEA Leti‘ Route de Nozay, 91461 Marcoussis cedex, France\nResume : Three main techniques are available for the excitation of Surface Plasmons (SPs): total internal reflection via prism coupling; scattering from a topological defect; use of a metallic grating. A compact electrical device capable of SP generation and injection into passive components would represent a major step towards “integrated active plasmonics”. Such a device, using a quantum cascade laser, has been demonstrated for operation at mid-infrared wavelengths . A numerical investigation has been performed  to design such a device at Telecom wavelengths (λ = 1.3 µm). We present a direct experimental demonstration of an efficient generation and launching of SPs at these wavelengths. We have reproduced the slit doublet experiment with SPs generated in situ with a laser diode by means of metallic gratings which couple the waveguided laser mode into a SP mode guided at Gold/Air interface. Our observations use a modified commercial aperture near-field scanning optical microscope (WITec GmBH), whose probe features an aluminum hollow pyramid. Besides its interest for active plasmonics, this study shows the possibility of achieving near-field imaging with this type of microscope in the near-infrared range.  A. Babuty, A. Bousseksou, J-P. Tetienne, I. Moldovan - Doyen, C.Sirtori, G. Beaudoin, I. Sagnes, Y. De Wilde, R. Colombelli, Phys. Rev. Lett. 104, 226806 (2010).  J-P. Tetienne, A. Bousseksou, D. Costantini, R. Colombelli, Y. De Wilde, Opt. Express 19, 18155-18163 (2011)\n|17:45||Metal patterning on a TM semiconductor gain medium for plasmonic applications|\nAuthors : D.Costantini1, A.Bousseksou1, L. Greusard2, R. Rungsawang2, Y. De Wilde2, J. Decobert3, J.-L. Gentner3, A. Accard3, G.H. Duan3, and R. Colombelli1\nAffiliations : Affiliations : 1Institut d’Electronique Fondamentale, Univ. Paris Sud and CNRS, UMR8622, 91405 Orsay, France 2 Institut Langevin, ESPCI ParisTech, CNRS, 10 rue Vauquelin, 75231 Paris Cedex 05, France 3 III-V Lab, Joint lab of 'Alcatel-Lucent Bell Labs France 'Thales Research and Technology' and 'CEA Leti‘ Route de Nozay, 91461 Marcoussis cedex, France\nResume : Surface plasmon polaritons (SPPs) allow one to confine the electromagnetic field below the diffraction limit, opening interesting perspectives in chemical and biological detection, for instance. Nevertheless, SPPs experience very large ohmic losses because of their intrinsic nature of electromagnetic waves confined at a metal interface. In order to implement practical applications, ohmic losses need to be compensated, and integrated SPP generators could be of great use. We propose to employ a semiconductor gain medium based on tensile strained semiconductor quantum wells which amplifies transverse magnetic (TM) light at telecom wavelengths (λ=1.3 μm). The high gain performance and polarization selectivity  make this active region (AR) suitable as a light source for SPP generation and amplification. We fabricated lasers based on this semiconductor material, and we first studied the effect of the proximity of the top metal contact on the device performances. Interestingly, a device with metallic contacts very close to the active region – which we call thin cladding structure – is still capable of lasing action . This result represents the basic building block to realize the coupling with a SPP propagating at the interface between air and the top metal contact, as designed in . We then employed the same device architecture to explore the possibility of reducing the plasmonic ohmic losses via the sole patterning of the top metal layer. Initial results show that a laser threshold reduction can be observed if a metallic first order distributed feedback (DFB) grating is implemented. Furthermore, the DFB laser correctly operates on a single mode (spectral analysis and SNOM characterizations of the mode profile). We believe that the integrated approach based on semiconductor active cores and electrical injection is promising for the development of SPP amplifiers. Furthermore, the fundamental study of the metal proximity to a gain media, combined with the electrical injection, opens the way to the development of electrically pumped semiconductor spasers and nanocavities.  J. Decobert, N. Lagay, C. Cuisin, B. Dagens, B. Thedrez, and F. Laruelle, \"MOVPE growth of AlGaInAs–InP highly tensile-strained MQWs for 1.3 mm low threshold lasers,\" Journal of Crystal Growth, vol. 272, pp. 543, 2004.  D. Costantini, A. Bousseksou, M. Fevrier, B. Dagens, R. Colombelli, \"Loss and gain measurements of tensile-strained quantum well diode lasers for plasmonic devices at telecom wavelengths\", Journal of Quantum Electronics, 48, p73 (2012).  J.-P. Tetienne, A. Bousseksou, D. Costantini, Y. De Wilde, and R. Colombelli, \" Design of an integrated coupler for the electrical generation of surface plasmon polaritons\", Opt Exp., vol. 19, no. 19, pp. 18155-18163, 2011\nShow my program\n|Une réalisation advisa.fr|","domain":"optical_engineering"}
{"url":"https://www.eltosch-grafix.com/products/uv-curing-systems/lightguide","date":"2023-12-01T12:04:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100287.49/warc/CC-MAIN-20231201120231-20231201150231-00420.warc.gz","language_score":0.851940393447876,"token_count":236,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__200112112","lang":"en","text":"LightGuide is a high-performance UV module for curing UV inks, varnishes, and coatings. Incredible UV yield is achieved through enhanced reflector geometry. The reflection of UV radiation is optimized for maximum efficiency with minimized energy input. The system's \"Energy-Minimized UV Curing\" certification, awarded by the independent German Berufsgenossenschaft (BG), demonstrates Eltosch-Grafix's strong commitment to both performance and ecology.\n- High performance yet reduced energy consumption.\n- Quick and easy exchange of reflector inserts.\n- Easy adjustment of UV intensity to specific process requirements.\n- UV-lamp power output of up to 240 W/cm regardless of application width.\n- User-friendly for rapid lamp and reflector exchanges.\n- Plug & Play connections.\n- High flexibility for use in a wide range of systems and positions.\n- Compatible with doped lamps and reflectors for optimal adjustment to specific inks, varnishes, and coatings.\n- Standardized DiCure reflectors.\n- Lightweight and compact.\n- Integrated mechanized shutter system.","domain":"optical_engineering"}
{"url":"https://www.etchdphotography.com/product-page/sirui-portrait-mobile-auxiliary-lens","date":"2024-04-13T21:57:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816853.44/warc/CC-MAIN-20240413211215-20240414001215-00241.warc.gz","language_score":0.8906349539756775,"token_count":476,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__157025712","lang":"en","text":"- For Sirui Cases and Mount Adapters\n- Multi-Layer, Anti-Reflective Coating\n- Approximately 2x Magnification\n- Includes Mobile Universal Clip\nSirui Portrait Mobile Auxiliary Lens\nDo you want to take top-quality photos with your smartphone? Then you need the lenses produced by SIRUI.\nSIRUI lenses are supplied with a dedicated adapter (supplied separately) and are not attached using clips or magnets as with other manufacturers’ products. Professionals do not use all-in-one lenses, they use fixed focal lengths which let you take the best photos. Smartphone photography means: high quality photos with your smartphone. Obviously, SIRUI lenses are also suitable for video use.\nOur lens attachments are more than just magnifying glasses. They are composed of several glass lenses made of German Schott glass. They have multi-layer, anti-reflection coatings. These minimise reflections and increase light transmission. The lenses guarantee accurate colour reproduction and offer minimum distortions and vignetting. Image sharpness to the edge of the picture is guaranteed.\nWhat is the SIRUI 60-SA?\nA portrait or tele-photo lens for your smartphone. It brings you closer to the action.\nWhat can the SIRUI 60-SA do?\nWith its 40° field of view, the 60-SA is a small tele-photo lens. It brings distant objects closer. Thanks to its shallow depth, it makes an ideal lens for portraits. A sun visor is fixed to the 60-SA.\nWhat do I need?\n– SIRUI 60-SA Portrait Lens\n– SIRUI Universal Mobile Clip\n– Front diameter: 38mm\n– Height: 30.6mm\n– Weight: 60g\n– Field of view: 40°\n– Focal length: 60mm (equivalent to full format)\n– Mount: SIRUI E-Bayonet\n– Construction: 6 lenses in 4 group\n– Optical distortion: <1.2%\n– Resolution: 500LP/mm\n– Working temperature: -20°C to +50°C\n1x SIRUI 60-SA Lens\n1x Front lens cover\n1x Protective case\n1x Universal Mobile Clip","domain":"optical_engineering"}
{"url":"https://highdilution.org/index.php/ijhdr/article/view/855","date":"2021-07-29T16:07:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153860.57/warc/CC-MAIN-20210729140649-20210729170649-00313.warc.gz","language_score":0.8539689779281616,"token_count":405,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__271884043","lang":"en","text":"Enhancement of Quantum Efficiency of A Dye-Sensitized Electrochemical Cell by using Triturated Zinc Oxide Mixed with Two Organic Dyes, Azure C and Rose bengal\nKeywords:Energy conversion efficiency, electrochemical cell, mixed dyes, triturated zinc oxide, adsorption,\nAbstractFor efficiently utilizing solar energy, when suitable nanoparticles are being engineered, triturated zinc oxide an eco-friendly, easily available, low cost material has been used as an agent for solar energy conversion. Two organic dyes Azure C and Rose bengal having absorption bands in two different spectral regions at 545 nm and 610 nm respectively, were chosen in order to overcome the band absorption limits of each dye and utilize the broad spectrum of solar radiation. The material was mixed with these two dyes in a specially devised electrochemical cell and photovoltage with significant efficiency was generated. The energy conversion efficiency of the cell using three different potencies 6C, 30C and 200C of triturated zinc oxide with same concentration of two dyes (0.5x10-5 M) in all cases are 0.39%, 0.43% and 0.35% respectively. The efficiency is only 0.15% for the mixed dye under similar conditions.\n<a rel=\"license\" href=\"http://creativecommons.org/licenses/by-nc-sa/4.0/\"><img alt=\"Creative Commons License\" style=\"border-width:0\" src=\"https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png\" /></a><br />This work is licensed under a <a rel=\"license\" href=\"http://creativecommons.org/licenses/by-nc-sa/4.0/\">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License</a>.","domain":"optical_engineering"}
{"url":"https://www.jember.de/job/optical-engineer-mf-berlin/","date":"2023-03-22T13:19:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943809.76/warc/CC-MAIN-20230322114226-20230322144226-00268.warc.gz","language_score":0.8760260939598083,"token_count":492,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__286094035","lang":"en","text":"OPTICAL ENGINEER* – BERLIN\nWebseite jember GmbH\nAre you passionate about Aerospace? Become a part of the international development team working on innovative projects for new satellite developments. Our clients are the top players in the European aerospace and automotive industry.\njember GmbH is a well-known European technology company that combines professionalism and expertise in a modern setting. We work closely with our customers who are internationally renowned for their work to provide comprehensive solutions to wide-ranging projects at the frontiers of science and engineering. Together, we work on the cutting edge technologies of “tomorrow” specializing in the fields of Automotive, Aeronautics and Aerospace.\n- Design, Analysis and Tolerancing of optical systems\n- Establishing and maintenance of optical models\n- Conduction of optical analysis\n- Definition and derivation of optical requirements\n- Definition and conduction of trade studies to support optical design decisions\n- Coordination of design, development, integration and test activities with other engineering disciplines and technical managers\n- Presentation of the results of the optical design and analyses in internal and external meetings with the customers\n- Definition of technical specifications for optical systems, subsystems and equipment\n- Definition of optical verification strategies\n- University degree or equivalent qualification in optics, physics, engineering or related technical discipline\n- Strong knowledge in Optics with significant expertise in Optical modelling and simulation, as well as integration and testing of optical set-ups\n- Significant experience using optical design software (e.g. ZEMAX, Code V, ASAP) as well as analytical skills\n- Excellent English skills, both written and verbal\nAs a Jember employee, you can be confident to have a head-start in your career and the right path to career development. Commencing with a structured personal introduction plan we guarantee your personal and professional development right from the start. As a company with a flat hierarchy and an open-door-culture, we provide a welcoming and comfortable working environment to facilitate creativity and productivity in our employees. In addition, we offer attractive conditions with further benefits.\n*All genders welcome.\nUm sich für diesen Job zu bewerben, sende deine Unterlagen per E-Mail an firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"http://www.dicoll.co.uk/lcd_touchscreen_detailsmore.php?oldid=19&id=557","date":"2013-05-21T06:11:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368699730479/warc/CC-MAIN-20130516102210-00004-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8598825931549072,"token_count":255,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__150652463","lang":"en","text":"LCD and Touch Screens for every requirement\nA kiosk solution for every occasion\nTransflective LCD technology can be applied to certain selected regular TFT LCD to provide the LCD with a reflective function. With the imposed reflective function, the modified LCD can reflect the ambient light passing the LCD cell and utilize the reflected light beams as its illumination. The stronger the ambient light is, the brighter the LCD will appear. As a result, the modified LCD is viewable under lighting conditions including direct sunlight.\nHow does this technology work?=Transflective LCD modules hold both transmissive and reflective properties, and the method of image display depends upon the conditions of the ambient environment. The display uses a backlight with a transmissive property in dark environments, and uses external light with a reflective property in bright environments. Our improved transflective method allows for better colour performance, which provides excellent colour characteristics similar to the transmissive mode. The net Reflectance rate of our Transflective LCD solution is from 0.9% to 1.3% varied from panels selected. For example, with 1.3% net reflectance rate and under 10,000 ambient sunlight conditions, the brightness gain is around 130 nits added to original backlight brightness.","domain":"optical_engineering"}
{"url":"http://bcrf.ucsd.edu/?page_id=92","date":"2018-03-19T10:49:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257646875.28/warc/CC-MAIN-20180319101207-20180319121207-00138.warc.gz","language_score":0.9215723872184753,"token_count":383,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__42760236","lang":"en","text":"Flow cytometry is a technique of classifying, enumerating, and sorting microscopic particles such as cells, bacteria, yeasts, picoplankton, chromosomes, and nuclei. A sample is treated with fluorophores that attach to molecules denoting physiological functions or chemical characteristics of the particles, i.e. a protein on the particle’s surface or an intracellular organelle.\nThis sample is then placed in the flow cytometer. The cytometer is made up of three systems:\n- The fluidics system which transports the sample to the interrogation point and hydrodynamically focuses it into a mono-dispersed stream for single event measurements.\n- The optics which includes lasers of various wavelength, mirrors, and lenses to focus the laser on the particle stream. This allows the fluorophores to be excited and emit light.\n- The electronics system which collects the emitted/scattered light and converts it into proportional electronic signals. These signals are then digitized and processed by the computer for analysis.\nThe sample is initially placed in the sample chamber where air pressure forces the particles through a probe and tubing to the nozzle assembly. At the same time, sheath fluid (usually PBS) is flowing into the nozzle assembly at pressure slightly less than the sample pressure. This creates laminar flow and a vortex within the assembly which hydrodynamically focuses the sample so that it exits the nozzle vertically separated in a stream of sheath fluid. Essentially, there is a narrow, faster moving, single-file stream of sample within a slower moving stream of sheath fluid. This allows excitation of the sample particles one-by-one.\nThe laser beams are focused on the stream just below the nozzle. This is called the ‘interrogation point’. As the particle passes through the beam at the interrogation point, it generates multiple optical signals.","domain":"optical_engineering"}
{"url":"https://anayees.com/en/collections/%D8%A7%D9%83%D8%B3%D8%B3%D9%88%D8%A7%D8%B1%D8%A7%D8%AA-%D9%83%D9%85%D8%A8%D9%8A%D9%88%D8%AA%D8%B1/products/philips-toslink-fiber-optic-audio-cable-10ft","date":"2024-04-22T19:47:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00086.warc.gz","language_score":0.8520298004150391,"token_count":220,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__2760514","lang":"en","text":"Fiber optic cable to enjoy clear picture and sound from PHILIPS, size 3 meters\nGive your home entertainment system a boost with Philips 10ft. Toslink® Fiber Optic Audio Cable with Mini Adapter. This high-quality cable transmits crystal clear surround sound between AV components with optical fiber (TOSLINK) inputs. Rediscover your favorite movies, music and video games with crystal clear surround sound from a superior audio signal. Optical fibers and a lens allow you to experience the best possible performance - all without compromising sound quality.\n10 foot. The cable transmits audio between AV components with fiber optic connections, and the included mini converter ensures compatibility with a wide variety of equipment. The molded cable ends feature a flexible lug for a more durable, strong cable that doesn't break easily. No matter your entertainment setup, this cable works with all brands of Blu-ray™ and DVD players, DVRs, amplifiers, AV receivers, cable and satellite boxes and more. Make an exceptionally sound decision with Philips 10ft. Toslink Optical Fiber Audio Toslink with Mini Adapter.","domain":"optical_engineering"}
{"url":"https://www.vangentholding.com/uncategorized/how-exactly-does-laserlight-vision-surgical-procedure-assist-myopia/","date":"2022-12-04T09:00:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710968.29/warc/CC-MAIN-20221204072040-20221204102040-00718.warc.gz","language_score":0.9404140114784241,"token_count":990,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__10988704","lang":"en","text":"What Laserlight Eyes Surgical procedures does, then, is flatten the key portion of the cornea so the focal point change in reverse and reaches the proper position in the retina. With light having the capability to properly target the retina, it is now easy to see very clear and distinct images without having assist from eyeglasses or associates.\nAs expert surgeon Mr Glenn Carp clarifies inside the video earlier mentioned, myopia and hyperopia takes place when the center of attention from the vision is targeted not on but before the retina. To improve this misalignment, what is required is both to shorten the eye or flatten the cornea.\nMyopia is most often cured with disposable lenses or sunglasses but a progressively common treatment methods are laserlight eyes surgical procedures. There is also a more modern manner of implanting unnatural lens, which happens to be generally utilized when laser beam eye surgical procedure is not feasible (i.e. the myopia is extreme) or it hasn’t worked.\nFarsightedness (hyperopia) is really a situation in which you are able to see significantly physical objects clearly, but near by things are blurry. In case you have a shorter than regular eyeball or a cornea that is certainly also smooth, lighting concentrates right behind the retina instead of upon it. This blurs close to perspective and sometimes distant sight.\nGenerally myopia begins to produce between the ages of 6 and 12. The chance of this perspective flaw is increased if one or both of your mom or dad are nearsighted. Even though everyone is diverse, the diploma normally changes progressively annually, occasionally with greater frequency, until later in teenage years. At this particular era, the degree of the refractive fault typically peaks. In unusual circumstances myopia might consistently development.\nThe doctor prescribed and refractive potential of myopia is offered in unfavorable diopter. The better the number, the greater number of severe your refractive fault is. Based on your level of myopia, you may only be capable of evidently see physical objects numerous centimeters away from you, and in far more minor situations, a few m out.\nThe need to use cups or disposable lenses is normally fully eliminated by Laserlight Eye Surgery. This capacity to see clearly without the need of help is of certain advantage to any myopic individual that appreciates sports or leads an active lifestyle. Numerous myopic folks also believe it is works well for interpersonal conditions, as they are able, for instance, travel without their cups or associates and more quickly acknowledge facial looks.\nOften known as nearsightedness and shortsightedness, there are actually 3 major therapy for myopia: cups, contact lenses, and Laser light Eye Surgical procedure. The most frequent methods of modification for myopia are cups and make contact with lenses. Nevertheless, these are temporary repairs and you should not deal with the disorder.\nEven though many people are given birth to with myopia, the surroundings may also cause it to show up and worsen. We have seen a recently available increase in myopia around the globe, aiming to this sort of changes in lifestyle as spending much more time inside your home and carrying out much more in close proximity to and vision-rigorous activities like employing a cell phone, functioning at a laptop or computer, studying, and writing.\nMany individuals wish to see – to see nicely without the need of sunglasses or contacts. Laserlight eyes surgical procedures may possibly provide an different means to fix glasses and make contact with camera lenses. Speak with your eye doctor to discover the best option to your eyesight and day to day life.\nNearsightedness (myopia) is actually a condition for which you see in close proximity physical objects clearly, but distant physical objects are hazy. Once your eyeball is a little more than standard or when the cornea contours as well sharply, light rays focus ahead of the retina and blur far-away sight. You can observe items that happen to be close up more obviously, yet not those that are a long way away.\nThere are a number of disposable lenses readily available, which includes every day disposables which can be put on each and every day before being thrown away, or they can be reused after they’ve been disinfected. Some contact lenses may also be donned for an extended time frame however, many gurus advise that they should not be used immediately simply because this can boost your probability of establishing an eyesight illness.\nMore youthful those with high levels of nearsightedness that should not be satisfactorily treated with corrective contact lenses can be provided implantable camera lenses. But this is not a regimen alternative for many individuals.\nAs i have said earlier, there aren’t any straight medical details that explains why individuals build myopia but there are certain things that boost the potential risk of you building short-sightedness.","domain":"optical_engineering"}
{"url":"https://aj-medical.en.made-in-china.com/product/GeEJWwPUYKrv/China-Infant-Phototherapy-Unit-with-Ce-Approved.html","date":"2019-08-26T04:32:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027330968.54/warc/CC-MAIN-20190826042816-20190826064816-00130.warc.gz","language_score":0.654074490070343,"token_count":128,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__74612140","lang":"en","text":"Equal light distribution.\nQuiet, no noise of a fan.\n5 tube fluorescent lights.\nStand: For the functional placement we offer a stand on castors.\nIntegral timer attached to count total hours of usage.\nHeight adjustabl. E: 1200mm~1500mm\nPower supply: AC 230V, 50Hz\nPower input: 120VA\nBlue light wavelength: 425nm~ 475nm\nAverage radiation of blue light: 500µ W/cm²\nTimer range of blue light: 0~999h 59min(reset)\nGross weight: 45kg Net weight: 25kg","domain":"optical_engineering"}
{"url":"https://www.toutvendre.fr/p/genuino-sony-alpha-a6000-mirrorless-digital-camera-with-16-5/381398288","date":"2021-01-19T00:12:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703517159.7/warc/CC-MAIN-20210118220236-20210119010236-00353.warc.gz","language_score":0.8177072405815125,"token_count":820,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__149867114","lang":"en","text":"Sony Alpha A6000 Mirrorless Digital Camera with 16-50mm Lens Silver\nThe black Sony Alpha A6000 Mirrorless Digital Camera is a versatile and advanced mirrorless camera featuring a 24.3MP APS-C-sized Exmor APS HD CMOS sensor and BIONZ X image processor to produce high-resolution still images and full HD movies with marked low-light quality and sensitivity to ISO 25600. Beyond notable imaging traits, the image processor also lends itself to continuous shooting up to 11 fps and an intelligent Fast Hybrid AF system that uses both phase- and contrast-detection methods to quickly and accurately acquire focus.\nFor live view monitoring, image playback, and menu navigation, both a large rear monitor and detailed electronic viewfinder are available. The 3.0\" 921k-dot XtraFine LCD screen features a tilting design to facilitate easier use from both high and low angles and also incorporates WhiteMagic technology for easier viewing in bright conditions. The 0.39\" 1,440k-dot Tru-Finder OLED EVF offers 100% frame coverage and a refined optical design to provide a natural viewing perspective and magnification. The body design of the A6000 also houses a configurable user interface, built around several customizable buttons and two control dials, for efficient and intuitive access to frequently used camera settings. Additionally, a Multi Interface shoe is available for attaching external flashes, continuous lights, or microphones.\nBuilt-in Wi-Fi connectivity, with support for NFC-enabled devices, is also integrated into the A6000 to support remote camera control and image sharing to linked mobile devices.\nIncluded with the camera body is a Sony E-mount 16-50mm f/3.5-5.6 OSS Retractable Zoom Lens, which provides a 35mm-equivalent focal length range of 24-75mm. This range of perspectives is well-suited to everyday shooting and is further enhanced through the inclusion of Optical SteadyShot image stabilization for minimizing the appearance of camera shake. Power Zoom technology allows for electronic control over the zoom position and the inclusion of one extra-low dispersion element and four aspherical elements helps to reduce chromatic aberrations throughout the zoom range as well as contribute to high overall sharpness.\nEnglish, French, Spanish, Portuguese, Turkish, Traditional Chinese, Simplified Chinese, Indonesian, Korean, Behasa Melayu\nIn The Box\n1. Sony Alpha A6000 Mirrorless Digital Camera with 16-50mm Lens (Silver)\n2. Lens Cap\n3. Eye Piece\n5. AC adapter\nAPS-C (1.5x Crop Factor)\nActual: 24.7 Megapixel\nEffective: 24.3 Megapixel\n24MP: 6000 x 4000\nSensor Type / Size\nCMOS, 23.5 x 15.6 mm\nStill Images: JPEG, RAW\nMovies: MP4, MPEG-4 AVC/H.264\nDust Reduction System\nMemory Card Type\nMemory Stick Pro Duo\nMemory Stick PRO HG-Duo\nUp to 11 fps\n10 sec, 2 sec\nHDMI D (Micro), USB 2.0, Wired Remote Port\n4.7 x 2.6 x 1.8\" / 120.0 x 67.0 x 45.0 mm\n12.13 oz / 344 g with battery and memory card\n16 - 50 mm\nComparable 35mm Focal Length: 24 - 75 mm\nMaximum: f/3.5 - 5.6\nMinimum: f/22.0 - 36.0\nAngle of View\n83° - 32°\nMinimum Focus Distance\n9.84\" (25 cm)\nApprox. 2.63 x 1.19\" (66.7 x 30.2 mm)\n4.09 oz (116 g)\nTerms And Conditions\nWe partner with a number of trusted and reputable courier\nFor more information, click [view offer] to the right side.","domain":"optical_engineering"}
{"url":"https://www.technologycatalogue.com/product_service/optiq","date":"2023-11-29T06:10:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100056.38/warc/CC-MAIN-20231129041834-20231129071834-00503.warc.gz","language_score":0.8913211822509766,"token_count":266,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__75186553","lang":"en","text":"Improve subsurface understanding for CCS projects\nThe use of fiber-optic sensing and its capabilities are being maximized now more than ever within the energy industry. Traditional measurements typically rely on discrete sensors that measure at certain points, whereas distributed sensing technology uses fiber-optic strands as the sensor. This enables continuous, real-time measurements to be captured along the entire length of a fiber-optic strand.\nOptiq fiber-optic solutions cover distributed acoustic sensing (DAS), distributed temperature sensing (DTS), distributed temperature gradient sensing (DTGS), and distributed strain and temperature sensing (DSTS) systems for a wide range of applications across energy industries—including oil and gas, carbon capture and sequestration (CCS), geothermal energy production, and mining.\nOptiq solutions can be used to improve subsurface understanding for CCS projects. These solutions can assess carbon storage capacity; monitor the position of CO2 plume or seismicity for regulatory compliance; and evaluate CO2 injection profiling, well injection containment, and well integrity.\nRelative Business Impact\nSign up or log in to your explorer or platform subscription to get access to the reviews written about this technology.\nSign up or log in to your explorer or platform subscription to get access to the track record of this technology.","domain":"optical_engineering"}
{"url":"https://apkfab.com/laser-pointer-simulator/mintly.laser","date":"2021-03-03T18:56:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178367183.21/warc/CC-MAIN-20210303165500-20210303195500-00554.warc.gz","language_score":0.8171360492706299,"token_count":246,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__210374366","lang":"en","text":"Most popular & realistic laser pointer simulator\nMore laser pointers to choose from\n- plastic or metal laser pointer\n- black or white laser pointer\nTouch anywhere to get laser lights or laser beams\nPlace laser pointer at\n- bottom left/right/center of the screen\n- top left/right/center of the screen\n- visual laser position selector\nMore laser pointer backgrounds\nFunny sounds of laser pointer\nDifferent colors of laser light\n3D laser pointer\nLaser pointer live wallpaper\nsmart laser, laser gun\nLaser Pointer Simulator is a prank app.\nIf you like Laser Pointer Simulator please rate it 5 stars and share it with your friends.\nDownload Laser Pointer Simulator now, make your friends believe you get a real laser pointer in your smartphone.\nAPKFab.com and the download link of this app are 100% safe. All download links of apps listed on APKFab.com are from Google Play Store or submitted by users. For the app from Google Play Store, APKFab.com won't modify it in any way. For the app submitted by users, APKFab.com will verify its APK signature safety before release it on our website.","domain":"optical_engineering"}
{"url":"http://maxmax.com/aUVShortwave.asp","date":"2013-12-07T16:44:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163054976/warc/CC-MAIN-20131204131734-00098-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8958381414413452,"token_count":142,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__111356279","lang":"en","text":"Our shortwave UV products emit visible light when stimulated with 254nm UV light and do not emit light when stimulated with a 365nm UV light (normal blacklight). These properties are particularly important for security applications where you do not want a user to easily detect markings, need a mark difficult to duplicate and need a mark resistant to environmental degradation.\nUVSW Shortwave Properties\nOur FlashUV7 is a good 254nm source for fluorescing the UVSW products. We currently have red and green UVSW products.\nWe can uses these substances to create water based and solvent based inks.\nSend mail to firstname.lastname@example.org with\nquestions or comments about this web site.","domain":"optical_engineering"}
{"url":"http://www.sun98998.com/product/16.html","date":"2024-04-19T22:17:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817455.17/warc/CC-MAIN-20240419203449-20240419233449-00573.warc.gz","language_score":0.8197994232177734,"token_count":207,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__193073409","lang":"en","text":"ZEISS PRISMO Family\nThe ZEISS PRISMO portfolio comprises four models that are fully compatible with requirements and boost efficiency through quality and accuracy. They represent the ideal solution for customers who cannot accept any compromise on precision in the context of quality control. With ZEISS PRISMO, accuracy plus safety equals productivity.ZEISS PRISMOThe all-rounderFeaturing a measurement accuracy of 0.9 + 0.9 + L/350 μm, ZEISS PRISMO is the flagship ZEISS CMM and synonymous with precision measurement. Computer-Aided Accuracy (CAA) corrects all dynamic influences on the machine to optimize precision even during high-speed scanning. Equipped as standard with the ZEISS VAST performance package, the ZEISS multi application sensor system (ZEISS mass technology), and the new ZEISS C99m controller, ZEISS PRISMO delivers maximum productivity and outstanding performance.","domain":"optical_engineering"}
{"url":"https://themanseclinic.com.au/best-laser-for-facial-redness-rosacea-and-spider-veins/","date":"2024-04-24T05:28:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819067.85/warc/CC-MAIN-20240424045636-20240424075636-00199.warc.gz","language_score":0.9315189719200134,"token_count":857,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__46620229","lang":"en","text":"My “Interview with an Expert” guest this month is Andrew Andreou, laser consultant, with whom I will discuss the options for laser and IPL treatment of rosacea, redness, facial capillaries /spider veins:\nDr N: Can you give us a history of the best lasers to remove red facial spider veins aka broken capillaries aka telangiectasia?\nTypically a 532nm or 595 laser was used to treat facial telangiectasia. More recently a 1064 wavelength has also been used. These wavelengths could be found in the Gemini, Vbeam, and Excel-V lasers. All of them were good, but did not have the optimal wavelength of 577.\nThe pulse width required to achieve the best result will typically be in the millisecond range.\nDr N: What is the optimal wavelength for removing red facial spider veins?\nIt has always been well known that a wavelength around 577 is the optimal wavelength for red facial veins as the absorption in blood is much greater than 532NM. Unfortunately historically the 577 wavelength has been difficult to produce, until now.\nDr N: Why has your company chosen to sell the 577 wavelength over the 532 wavelength for treatment of facial redness and telangiectasia?\nWe have been distributing 532nm lasers for 15 years and the results have been fantastic. Once we saw the amazing results of the Quadrostar PRO Yellow 577nm we knew straight away we were on a winner.\nDr N: IPL or laser for broken blood vessels, which is better?\nAn IPL utilises a different delivery of light which uses a cut off filter to produce the wavelength required. IPLs are not very specific in the delivery of the energy. The PRO Yellow laser with its optimal wavelength of 577nm will target the vessels much more efficiently\nDr N: Tell us about the new laser the Quadrostar PRO Yellow 577nm?\nThe Quadrostar PRO Yellow 577 laser is manufactured by Asclepion, a German company with ties to Carl Zeiss Optical. The German quality can be seen within the excellent build of the laser which translates to the best possible results for you and your patients.\nDr N: Other than for facial redness and facial spider veins, what is the 577 Quadrostar PRO Yellow good for?\nThe Quadrostar PRO Yellow 577 laser has the ability to treat many conditions including Port Wine Stains, bulky lesions and Seborrheic Keratosis\nDr N: Is the 577 wavelength Quadrostar PRO Yellow safe for treating facial capillaries?\nWhenever I lecture or train clinics on the use of lasers I always reinforce that to get the best result a laser must have an optimal wavelength and pulse width to target the chromophore without damaging the surrounding tissue. Because of its specific wavelength, the Quadrostar PRO Yellos 577 laser achieves this with no or minimal downtime.\nDr N: Is there contact cooling with the Quadrostar PRO?\nAs we are efficiently targeting the blood, the energy used is lower than would typically be used with other lasers. This allows for a more efficient treatment where contact cooling is not necessary. For the treatment of larger areas, because of the bulk heating, the Quadrostar PRO yellow 577nm laser does have a scanning handpiece with also incorporates contact cooling.\nDr N: Can the 577 Quadrostar be used for patients with Asian and darker skin tones? Is it a popular machine in Asia since its release?\nThe Quadrostar PRO Yellow 577nm laser can be used on skin types 1 through to 4. The Asian market is also achieving fantastic results in the treatment of Melasma with the 577nm wavelength.\nDr N: Thanks Andrew for your valuable information\nAndrew Andreou has over 15 years experience in the Cosmetic/Aesthetic industry and has a strong understanding of both the technical and clinical application of lasers. He has lectured for many years on all aspects of lasers, which gives him the ability to assess each individual’s specific needs, and as a consultant has access to many different brands. This allows him to only recommend what he believes is the best device.","domain":"optical_engineering"}
{"url":"http://www.inb.uni-luebeck.de/publications/pdfs/nc2000.html","date":"2018-10-20T06:20:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583512592.60/warc/CC-MAIN-20181020055317-20181020080817-00159.warc.gz","language_score":0.8223884105682373,"token_count":273,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__41476611","lang":"en","text":"Spatio-temporal curvature and the visual coding of motion\nInstitute for Signal Processing\nMedical University of Luebeck\nRatzeburger Allee 160, 23538 Luebeck, Germany\nAs opposed to dealing with the geometry of objects in the 3D world, this paper considers the geometry of the visual input itself, i.e. the geometry of the spatio-temporal hypersurface defined by image intensity as a function of two spatial coordinates and time. The Riemann curvature tensor of this hypersurface can be used to estimate speed and direction of motion in four different ways. While this four motion vectors are equal for pure translations, they differ otherwise, e.g. for discontinuous motion. The differences can be used to build confidence measures. Applications demonstrate that the approach can improve the computation of motion by avoiding the aperture problem, discontinuous motions, and occlusions. Moreover, the approach allows to predict global motion percepts and properties of MT neurons and it is argued that important aspects of early and middle level visual coding may be understood as resulting from basic geometric processing of the spatio-temporal visual input.\nKeywords: vision models, motion, flow-field, nonlinear features, curvature tensor\nFull paper in PDF format\nClick on the image to view the movie.","domain":"optical_engineering"}
{"url":"https://oorym.com/technology/","date":"2023-03-26T08:35:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945440.67/warc/CC-MAIN-20230326075911-20230326105911-00093.warc.gz","language_score":0.8757674694061279,"token_count":196,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__53539377","lang":"en","text":"HOW DOES IT WORK?\nOorym’s waveguide is a revolutionary optical element that separates the two main functions of coupling the light waves out of the substrate and combining the light waves from the external scene with the virtual image which is projected from the display source. While in all other existing technologies for AR, a single complicated device is utilized for those two functions, resulting in an inefficient and complex solution, Oorym’s waveguide is composed of two simple components that accomplish independently the required functions. Thus, our waveguide provides an efficient and elegant solution for delivering AR to the viewers’ eyes.\nIT IS BEAUTIFUL\nIT IS WIDE\nIT IS SIMPLE\nNano-technology and advanced manufacturing capabilities have their rightful place, but at Oorym, we are able to build our waveguide using existing and well-established optical fabrication processes, allowing us to deliver a cost-effective and scalable product","domain":"optical_engineering"}
{"url":"http://www.michaels.com.au/index.php/products?page=shop.product_details&flypage=flypage.tpl&product_id=3505&category_id=3","date":"2016-06-28T03:42:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-26/segments/1466783396455.95/warc/CC-MAIN-20160624154956-00178-ip-10-164-35-72.ec2.internal.warc.gz","language_score":0.8351903557777405,"token_count":266,"dump":"CC-MAIN-2016-26","global_id":"webtext-fineweb__CC-MAIN-2016-26__0__36929475","lang":"en","text":"Olympus Zuiko Digital 50mm f2.0 Macro - Four-Thirds mount\n100mm f2.0 equivalent in 35mm format\nA telephoto macro lens that features superlative optical performance and is a firm favourite of both macro and portrait photographers.\nHigh performance optics\nED lens element\nThe pinnacle of optical excellence.\nA legendary lens amongst E-System photographers. Due to its special lens design, the Zuiko Digital 50mm lens exhibits minimal distortion characteristics, and superbly even center-to-edge optical performance at all f-stops and focus distances. Its 2.0 maximum aperture enables easy macro photography in low-light, and a floating lens design means that it functions superbly as a bright aperture portrait lens in fashion photography and professional portraiture use. This lens includes an ED element for sharp, brilliant colour images, and provides a maximum magnification of 1:2 (half life size) - equivalent to life size (1:1) in the 35mm film format.\n35mm Equivalent Focal Length\nAngle of View\nf/2.0 - f/22\n11 Elements in 10 Groups, including 1 ED Lens Element\nMinimum Focus Distance\n0.52x (35mm equivalent Maximum Image Magnification 1.04x)","domain":"optical_engineering"}
{"url":"https://verkaufenheute.icu/en/products/detail?product_key=643-3b813319isjs","date":"2020-11-25T23:02:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141184870.26/warc/CC-MAIN-20201125213038-20201126003038-00342.warc.gz","language_score":0.821130633354187,"token_count":3211,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__193304095","lang":"en","text":"Lux meter. This article needs additional citations for verification. Exposure Metering: Relating Subject Lighting to Film Exposure (PDF) A discussion of meter calibration and its practical effects A lux meter is an equipment that measures brightness of falling on an object at a particular area. To properly operate a lux meter, just take it to the proposed camera site and check the light reading Lux meter cukup diletakkan di atas meja, atau dipegang setinggi 75cm dari atas permukaan lantai. Maka layar penunjuk dari lux meter tersebut akan menunjukkan angka yang merupakan nilai dari..\nIn this post, we ranked the 5 best Luxmeters or luminometers. They're commonly used in movie-making and set design to ensure the best scene lighting Lux meter is often simply called light meter, because of its popularity over other light measuring devices. There are wide range of light meters available on the market based on their price..\nTo better correlate lux meters to the human perception of light, they are configured to the CIE standard illuminant A. This adjusts the light meter to expect light distributed over wavelengths of a domestic.. Lux meters imitate the eye's visual response and only include wavelengths that the eye can see. The lux measurement procedure requires positioning a meter's sensor at the location you wish to.. Category:Light meters. From Wikimedia Commons, the free media repository. In other projects. Wikimedia Commons. Wikipedia\nThere have long been stand-alone lux meters (for use in photography, for example), devices with a light sensor and a screen that would display light levels in lux units. Current smartphones and tablets.. . a portable instrument for measuring illumination; a type of photometer. The simplest luxmeter consists of a selenium photocell that converts luminous energy.. Alibaba.com offers 1,058 lux meter products. About 17% of these are Testing Equipment, 0% are Levels, and 10% are Other Test Instruments exposure meter (plural exposure meters). (photography) An instrument that measures the intensity of the light reflected from or falling on a subject, and calculates the optimum exposure depending on the film speed. light meter. lux meter\nThe Lux Meter is usually used to measure illumination. The illumination is how level of luminous flux is falling on a surface area. The lux meter is powered by a 9V battery. To minimize battery space, it is.. Leaton Digital Luxmeter/Digital Illuminance Light Meter lux meter with LCD Display(Range: 0.1~200,000 Lux Luxmeter, 0.01~20,000Fc) Lux To Lumens Conversion Calculator. Enter Illuminance in lux: lx. Select area unit type: Area in square feet Area in square meters. Enter spherical radius: Or enter surface are\nLight meter. From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. The Problem with Lux Meters An article suggesting that Lux meter may read incorrectly when measuring.. . Definition of lux. : a unit of illumination equal to the direct illumination on a surface that is everywhere one meter from a uniform point source of one candle intensity or equal to one.. Before LEDs, if we measured illuminance with a quality lux meter that was in good condition and calibrated, there 1. Is Measuring LEDs with a lux meter accurate? Ivan Perre Electrical Engineer..\nThe 0-6000 lux range is a good general purpose range for indoor light levels. The 0-150,000 lux range is If you have a calibrated light meter and would like to calibrate the Light Sensor to match it, you.. The Lux Meters are measuring in Photometric Units in Lux(es),1Lux =1 Lumen per square meter.That`s a system based on a definition of the human eye sensitivity to visible spectrum.Light.. in square meters for any light source and press the Calculate button to get the illuminance in lux: Enter luminous flux in lumens: lm. Select area unit type: Area in square feet Area in square meters The 0-6000 lux range is a good general purpose range for indoor light levels. The 0-150,000 lux range is If you have a calibrated light meter and would like to calibrate the Light Sensor to match it, you.. See more of Lux Meter on Facebook. Hi I am in Zimbabwe I want one lux meter how can you help. Send me quote\nKonica Minolta lux meters can be used to measure light intensity in many applications such as office Examples of practical uses of lux meters include: Checking for lighting system adequacy in office.. The Hioki FT3425 Lux Meter is built in with Bluetooth wireless technology, letting you pair it with the free GENNECT Cross mobile app to inspect, record, and create reports of lux data easily and.. A light meter is used to measure the amount of light distributed over a particular area at a specified The Visible Light Meter SD Card Logger - IC850007 is a light meter that measures in lux and foot..\nSee more ideas about Metering, Light meter, Data logger. Extech Light Meter Large backlit LCD display with bargraph Wide range to or Lux Cosine and color corrected measurements Relative mode.. Professional 400K Lux Meter with Carry Case. Similarly to a TV installer using a signal meter, you can use this device to find optimum locations on a rooftop (or wherever you're installing them) to help.. Lux meters provide a quantified measurement of the amount of light available. Using a lux meter lets you determine exactly how much light you need for video that is usable for you Lux Meter GrandBeing Handheld LCD Light Meter Luminometer Photometer Measure Tester Measuring Digital Luxmeter/Digital Illuminance Light Meter with LCD Display 0.1-50,000 Lux Range\n. Extech 401025. Foot Candle/Lux Light Meter Includes analog output and fast/slow response feature Dr.Meter digital light lux meter The digital lux meter Dr.Meter LX1010B can measure up to 100,000 lux, or, approximately 10,000 footcandles. It is used for checking the level of luminance, the measure..\nThe meter-candle [m*c] to lux [lx] conversion table and conversion steps are also listed. Also, explore tools to convert meter-candle or lux to other illumination units or learn more about illumination.. 'Meter' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and abbreviations resource. Acronyms that contain the term lux meter. What does lux meter mean Mini sound level meter. Light lux meter. ▶Measuring range: 0Lux～400kLux/0Fc～40kFc （Measurement repeatability） ▶Analog bar-graph indication ▶Real time and date display ▶High.. Lux and footcandles are the common units for visible light, but so are Candelas, Lumens, and Candela per square meter. en.wikipedia.orgThe original version of this page is from Wikipedia, you can..\nContact verified Lux Meter Manufacturers, Lux Meter suppliers, Lux Meter exporters wholesalers We are offering Lux Meters in the market. Lux Meters are used for measuring luminous flux per unit.. Lux Meter. Top Selected Products and Reviews. HTC Instrument LX-103 Light Meter Luxmeter, Measures Up-To 2,00,000 LUX/20,000 FC by Supreme Traders Supertronics1989 Unit: Lux Lux: The lux is a unit of measurement of brightness, or more accurately, illuminance. It ultimately derives from the candela , the standard unit of measurement for the power of light Lux meters for professional use: large selection and unparalleled price-performance ratio. Luxmeters from Testo: fast, reliable, high-precision. Illuminance and light distribution have a crucial..\nDefintions of Lux meter not found. Light meter and lux meter are semantically related. You can use Lux meter instead a noun phrase Light meter Get lux meter at best price with product specifications. Listed lux meter manufacturers, suppliers, dealers & exporters are offering best deals for lux meter at your nearby location Package Content: 1 x Luxmeter Digital Meter 1 x9V battery 1 x English Manual. Features: High Accuracy and rapid response Auto Zeroing Over-range indication LCD Display Data Hold Low battery.. Free. Size: 4.4 MB. Android. Lux Meter is a simple light meter for measuring illuminances (lux, fc) by using the light sensor of your android device Definition of lux meter in the Definitions.net dictionary. Information and translations of lux meter in the most comprehensive dictionary definitions resource on the web\nDigital Lux Meter from this supplier. Standard Vibration Meter (VM6360). Related Searches: Maintenance Digital Lux Meter Suppliers : Can't find a suitable Supplier or product Other Lux Meters (Light Meters). Display Type This meter is used by lighting design... [See More]. Meter Type: Lux. Illuminance Range: 150000\nThe C.A 1110 luxmeter (light meter) measures the illuminance of all light sources (LED, Fluo. etc.) up to 200,000 lux in compliance with Class C of the NF C 42-710 standard.. 163.20 USD. Meter features user-selectable lux or ftc units, max/min, and hold functions, allowing you to easily control measurement readings. The included software allows you to view measurement.. Pessl instruments lux meter. La fotometria o luxmetro IM508D si riferisce alla misurazione della radiazione visibile (luce) con un Sensore. Pessl instruments lux meter. Part No Wholesale Lux Meter ☆ Find 308 lux meter products from 143 manufacturers & suppliers at EC21. ☆ Choose quality lux meter manufacturers, suppliers & exporters now - EC21 Dr.Meter New Digital Light Meter 0.1 Lux - 200000 Lux Tester FC Photo Camera Luxmeter. CEM DT-1308 Deluxe 400K Lux Digital 4-digit LCD Light Meter Lux-fc foot-candle Luxmeter\nImport quality Light Meters supplied by experienced manufacturers at Global Sources. Digital Lux Meter Digital LCD 200000 Lux Meter Photometer Luxmeter Light Meter Electricity. Lux meters. The RANGER Neo Lite is an entry-level Field Strength Meter and Spectrum Analyzer that is part of a new breed of multifunction, TV, Satellite, CATV and WIFI analyzers Analog Frequency Meter Working Principle. Moving Coil Galvanometer Construction & Working. Lux Meter Working Principle Light Lux Meter (full) 0 (Atau mungkin ada versi baru). Diperbarui pada: Jan 01, 1970. Membutuhkan android: 4.0.3\nSmart meters provide important customer benefits, and that's why they're now the standard meter FPL provides. However, if you prefer not to have the smart meter, you can choose to enroll in the.. Covermeters and Half-Cell Meters. Rebar and Stud Locators. Metal Detection\nAmprobe LM-200 LED Light Meter is rated 3.3 out of 5 by 3. Rated 1 out of 5 by jeff99 from very disappointed in Amprobe I cannot believe that Amprobe would put their name on this unit.. Digital multimeters. Clamp meters. Voltage and continuity tester. Non contact voltage detectors The Lux Meter is a specialised instrumentation measuring luminosity, brightness. widely used in electro-optical sources, research teaching, metallurgy building, industry inspection as well as.. Description. The range of Lux Meter / Light Meter is a device used to measure the amount of light. Procured from renowned vendors, these are designed to easily download the data on line\nПеревод слова meter, американское и британское произношение, транскрипция electric (light) meter — электросчётчик meter reading — показание прибора meter panel — панель с.. Position : Home ›› LUX METER. Related Country GuangzhouLandtekInstruments Co. Ltd. is one of leading professional manufacturers meters and instruments in China What would you do with actionable information about every square meter on Earth, updated every single hour? Gain access to timely and reliable SAR imaging from the world's largest SAR satellite..\nSelling Lux Light Meter in Indonesia, Distributor Lux Light Meter, Supplier, Dealer, Agent, Importer HT309 adalah luxmeter digital portabel, mudah digunakan untuk pengukur cahaya (Lux / Fc) dari.. A meter is a SI unit scientifically accepted as the base unit of distance and length. Along with other units like a kilometer or an inch, a meter is one of the fundamental units in SI\nBrowse all the major meteor showers for 2020.. Meter is a stressed and unstressed syllabic pattern in a verse, or within the lines of a poem. Stressed syllables tend to be longer, and unstressed shorter. In simple language, meter is a poetic device that.. B METERS is an Italian company that has been designing, producing and distributing instruments and solutions for measuring the consumption of water and thermal energy used for heating and cooling.. The CA 10141 conductivity meter is watertight! IP67 watertight conductivity meter with data recording Meters and metres. When British English borrows a word from another language, it typically likes to keep the origins visible (provided the language has the kind of status that Britain might want to borrow..\nThe TM-1 Tension Meter accurately and reliably measures the absolute tension of each of the spokes in a wheel, as well as the relative tension between all the spokes in a wheel. Easy to use and priced.. Watthour meter testing\nHand held wind and weather trackers from Kestrel Meters. Shop online from the entire line of Kestrel weather instruments. Free, Same-Day Shipping Kilometers to Meters (km to m) conversion calculator for Length conversions with additional tables The metre is a unit of length in the metric system, and is the base unit of length in the International.. A lot more cyclists would use power meters if they weren't so expensive. A group of Dutch entrepeneurs is out to address that situation. Why we started iQ2. The perfect power meter at a good..\nIlluminance is measured in foot candles (ftcd, fc, fcd) or lux (in the metric SI system). A foot candle is actually one lumen of light density per square foot; one lux is one lumen per square meter Idman Azerbaijan TV - Wikipedia, the free encyclopedia Met Office weather forecasts for the UK. World leading weather services for the public From a user perspective, utility meters operate in cycles (usually monthly) for billing purposes. This sensor will track a source sensor values, automatically resetting the meter based on the configured..","domain":"optical_engineering"}
{"url":"http://tysoncslx404.blog2learn.com/11536297/2-facts-you-do-not-really-realize-in-respect-to-lasik-eye-surgical-operations","date":"2018-12-18T23:39:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829997.74/warc/CC-MAIN-20181218225003-20181219011003-00136.warc.gz","language_score":0.9582486748695374,"token_count":872,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__1045557","lang":"en","text":"The eye can be examined with relative ease as to both its function and its structure. A practical assessment consists of the ability to move in the orbit and the reaction of the student to light and lodging.\nThe function of the eye might be evaluated in numerous ways. The client may be asked to determine illuminated letter or objects of varying sizes on exactly what is known as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in a number of methods. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, particularly in glaucoma, the stress in the eyeball is increased markedly.\nNevertheless, it should be well bore in mind that a client with an eye issue may have other issues too. Often other physical conditions are main and impact the eye as a effect. The look of the eye can signal the patient and the physician to troubles in some disruptions of other parts of the body even before other symptoms provide themselves.\nOne's reliance on sight is highlighted when one faces a short-lived or possible irreversible loss of this crucial sense. When restorative procedures are sought, particular forms of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are troubled with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this type of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling better the eye to direct more light into the click site retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the primary reason why this kind of eye surgery has actually become well accepted is because the majority of its cases had actually been effective.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nDue to the fact that LASIK eye surgery involves the operation of the retina, which is among the most delicate parts of the eye, the majority of people say that the operation can be very risky.\nSimply puts, a basic mistake might nearly cause an person's lifetime loss of sight. For this reason, it is necessary to think about lots of aspects prior to choosing whether LASIK eye surgical treatment is the right corrective procedure one has to undergo.\n2. It is not a ideal treatment\nLASIK eye surgical treatment may remedy your vision however it does not necessarily imply that it can offer you a twenty-twenty. Even if statistical reports show that 70% of the patients may have straight from the source 20/20 vision, this does not always imply they have ideal vision.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the perfect eye surgery the method many people view it\nOn the other hand, the examination of the structural part of the eye may be made in a number of methods. It needs to be well kept in mind that a patient with an eye problem might have other issues. Typically other physical conditions are main and affect the eye as a effect. The look of the eye can inform the client and the doctor to difficulties in some disruptions of other parts of the body even before other signs present themselves.\nLike its concrete equivalent, LASIK eye surgical treatment is another kind of vision correction.","domain":"optical_engineering"}
{"url":"http://www.foss.com.au/industry-solution/products/milkoscan-ft-plus","date":"2017-04-26T17:33:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121528.59/warc/CC-MAIN-20170423031201-00633-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8995338678359985,"token_count":443,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__234655051","lang":"en","text":"MilkoScan™ 7 is based on Fourier Transform InfraRed (FTIR) analysis. It works with the mid-Infrared region of the spectrum from 3 - 10 µm corresponding to 1000 – 5000 cm -1.\nThe FTIR interferometer scans the full infrared spectrum, collecting data simultaneously and allowing measurement of new parameters even in complex dairy products. Analysis of an additional parameter simply becomes a matter of calibration.\nThe fact that FTIR instruments are standardised offers a great advantage. A calibration developed on one instrument may be transferred to other instruments, which due to the standardisation will provide identical readings. Standardisation is achieved by comparing spectra of a specially developed FTIR equalizer sample, collected on a newly installed instrument (slave) to the spectra of a similar sample using a master instrument at FOSS.\nThe main infrared wavelengths\nThe fat molecule consists of a glycerol backbone to which three fatty acids are bound. Two different fat wavelengths are mainly used in the IR instruments, Fat A and Fat B.\nFat A absorption is due to stretching vibrations in the C=0 bond of the carbonyl group in fat. This filter counts the number of fat molecules regardless of the length and the weight of the individual fatty acids. This is a drawback if the length of the fatty acids changes.\nFat B absorption is due to stretching vibrations in the C-H bonds of fatty acid chains. The measurement is therefore related both to the size and the number of fat molecules in the sample.\nThe lactose molecule is a disaccharide consisting of two monosaccharides glucose and galactose joined together. The hydroxyl group, (OH) is characteristic of carbohydrates and the lactose absorption is due to the C-OH bond.\nThe protein molecule consists of amino acid units joined together with peptide bonds. Protein absorption is due to stretching vibrations in the N-H bonds within the peptide bonds.\nIn addition to these four main wavelengths, up to 1000 other wavelengths can be selected from the full spectrum to give unprecedented possibilities for new parameters and accurate analysis. For the measurement of freezing point depression a conductivity cell is included.","domain":"optical_engineering"}
{"url":"https://totalsecurityadvisor.blr.com/grounds-security/thermal-cameras-tackle-elements-perimeter-security-solutions/","date":"2020-08-13T03:28:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738950.61/warc/CC-MAIN-20200813014639-20200813044639-00430.warc.gz","language_score":0.8572805523872375,"token_count":820,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__37931065","lang":"en","text":"Thermal cameras are becoming a leading trend in video surveillance today. They are the perfect complement to conventional cameras that, when combined, make a wide-ranging and comprehensive surveillance system.\nThermal cameras are increasingly being used in perimeter security applications. Today’s thermal network cameras are the perfect choice for scenes that are completely dark or with bright sun and other adverse conditions. They can penetrate through most atmospheric conditions and are a great tool for detecting people and objects through smoke, dust, and fog.\nUnlike conventional visible security cameras that measure light, thermal security cameras see differences in the levels of heat emitted by an object, vehicle or person. Thermal cameras are not as useful, however, when it comes to reliable identification.\nThe following selections represent the latest in thermal imaging technology:\nFLIR PT-Series HD\nThe FLIR PT-Series HD is an advanced dual-sensor security system, combining a cooled or uncooled 640×480 resolution thermal sensor, a 1080p high-definition visible-light imaging sensor, and a high speed, precision pan/tilt system. Multiple high-performance thermal lenses are available, including optical zoom lenses up to 14X. The HD visible camera also features a 30X optical zoom lens with autofocus and low-light capabilities. The FLIR PT-Series HD integrates with FLIR United VMS 8.0 and other VMS software providers.\nThe SightLogix SightSensor thermal camera comes with embedded video analytics and video processing offering features such as electronic stabilization, georegistration, geospatial detection zones, hands-free PTZ steering to zoom and follow targets for more detail, and targets projected onto a site map for real-time situational awareness.\nHikvision DS-2TD4035 Series\nThe DS-2TD4035 Series Network Bi-Spectrum Thermal/Optical PTZ Camera Systems from Hikvision provides a Smart Tracking feature that uses the thermal sensor to capture targets in any lighting condition and then follow that subject, while a visible light camera provides additional information, resulting in more accurate detection and better situational awareness.\nAxis Q Series\nAxis thermal network cameras are ideal for intelligent video and offer high accuracy analytics. The AXIS Q19 thermal network camera is ideal for detection around the clock. The AXIS Q29 Temperature Alarm camera features remote temperature monitoring. The AXIS Q8641-E PT and AXIS Q8642-E PT thermal network cameras are designed for unobstructed views and long-distance detection.\nSierra-Olympic Technology Aeron Searcher\nSierra-Olympic Technologies Aeron Searcher is a visible and thermal video imaging system with continuous zoom. The long-range surveillance system features either QVGA (320×240) or VGA (640×480) options with simultaneous video and thermal outputs, proprietary image contrast enhancement (ICE), a 3x motorized continuous thermal zoom, and pan/tilt capabilities.\nElectro Optical Industries Spynel\nElectro Optical Industries Spynel panoramic infrared thermal imaging surveillance system offers built-in detection and tracking software. New updates of Spynel now include V-LRF, a full HD Visible Channel that allows users to use an x30 continuous optical zoom in order to accurately detect and recognize even the smallest of objects. The Laser Range Finder option provides accurate data regarding the distance of the detected threat.\nThe IndigoVision BX thermal camera combines an encoding platform with uncooled thermal sensors to enable advanced video analytics and temperature measurement analytics in a single, easy to install, product. With an effective detection distance of 9,845 feet (3000millimeter), IndigoVision’s BX cameras enable you to see further and more accurately.\nThe 3xLOGIC VERA thermal camera is an all-in-one solution that offers features such as embedded VIGIL Server software, edge-based recording, and advanced analytics. The VERA thermal camera features QR code technology for fast, easy install and setup.","domain":"optical_engineering"}
{"url":"https://www.bclaserandskincare.com/cosmetic-procedures/enlighten-laser-tattoo-removal/","date":"2018-09-24T09:56:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267160337.78/warc/CC-MAIN-20180924090455-20180924110855-00319.warc.gz","language_score":0.9463324546813965,"token_count":476,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__181005927","lang":"en","text":"Enlighten Laser Tattoo Removal was introduced in 2014 as the most advanced technology for tattoo removal using picosecond technology. What does this mean for you?\nIf you are looking to have a tattoo removed or cleaned up then there are several reasons why you would consider having it removed with picosecond technology, whether it is the Picosure laser or Enlighten laser.\nTraditional laser tattoo removal has been done with nanosecond technology, the newer picosecond technology is 1000 times shorter in pulses and has been shown to remove tattoos more completely in fewer treatment sessions than traditional lasers. We have been using lasers for tattoo removal in our clinic for over 16 years and have a wealth of experience with all technologies.\nWHY ENLIGHTEN LASER TATTOO REMOVAL?\nThe Enlighten laser tattoo removal uses both nanosecond and picosecond technology as well as two wavelengths to completely remove tattoos quickly and effectively.\nThe wavelengths used by this picosecond laser are 532 and 1064. At 532 wavelengths the laser creates a green light that is absorbed by red and orange pigment tattoos. This wavelength is also absorbed by melanin and so can be used for removing sunspots and age spots as well.\nAt 1064 the laser creates a near infrared light that is poorly absorbed by melanin making it a great wavelength for darker skin types. It also is absorbed by dark tattoo pigments and so removes black ink very effectively.\nLaser Tattoo removal is a science requiring both skill and technique and experience in order to successfully remove that tattoo regret. It requires both a knowledge of the wavelengths as well as spot sizes (how deep to go) and fluence ( enough to fragment the tattoo particles) in order to make sure that there is an effective removal of the tattoo in a safe manner.\nAt BC laser we have been removing tattoos for over 16 years from the very first Medlite c6 tattoo removal laser to the most current 2 picosecond laser tattoo removal devices.\nWe are currently the only clinic in Canada that has both the Picosure laser tattoo removal system as well as the Enlighten Laser tattoo removal system.\nBook your appointment today if you want fast tattoo removal safely and effectively.\nAFTER 5 ENLIGHTEN TREATMENTS – BEFORE AND AFTER.\nPhotos courtesy of Dr Victor Ross.","domain":"optical_engineering"}
{"url":"http://blog.meowzas.com/?p=225","date":"2019-03-26T17:03:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912205597.84/warc/CC-MAIN-20190326160044-20190326182044-00068.warc.gz","language_score":0.9508641958236694,"token_count":147,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__85060364","lang":"en","text":"Any interview we do, we talk about these, any friend we have, we talk about these, any stranger we meet, we talk about these… so here take a look and get ready.\nWant eyesight that would make the Terminator jealous? Well, in a few years, you might be able to say hasta la vista to your normal old contact lenses and hello to the solar powered augmented lenses that University of Washington professor Babak Amir Parviz and his students are working on. The technology would embed hundreds of semitransparent LEDs onto a thin lens, letting wearers experience augmented reality right through their eyes. And the applications – from health monitoring to just plain bionic sight – could be endless. SOURCE","domain":"optical_engineering"}
{"url":"http://charlievueo148.tribunablog.com/2-elements-individuals-do-definitely-not-have-information-in-respect-to-lasik-eye-surgical-procedure-5187585","date":"2018-12-09T21:49:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823183.3/warc/CC-MAIN-20181209210843-20181209232843-00420.warc.gz","language_score":0.9547743797302246,"token_count":892,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__240362515","lang":"en","text":"2 Elements Individuals Do Definitely Not Have Information In Respect To LASIK Eye Surgical ProcedureThe eye can be examined with relative ease as to both its function and its structure. A practical evaluation consists of the ability to move in the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be checked in numerous ways. The patient may be asked to recognize illuminated letter or items of varying sizes on exactly what is understood as the Snellen chart.\nConversely, the assessment of the structural part of the eye may be made in numerous ways. Tension within the eyeball is determined by a \"tonometer.\" In certain illness, particularly in glaucoma, the stress in the eyeball is increased significantly.\nHowever, it must be well bore in mind that a client with an eye problem might have other issues as well. Typically other physical conditions are primary and impact the eye as a consequence. The appearance of the eye can signal the patient and the doctor to difficulties in some disturbances of other parts of the body even prior to other signs provide themselves.\nConsequently, one's dependence on sight is stressed when one deals with a momentary or possible long-term loss of this essential sense. Hence, when restorative measures are looked for, particular kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to motivate decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this type of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea using a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is pop over to these guys lastly reformed, permitting better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people must know. Probably, the primary reason this type of eye surgical treatment has actually become well accepted is because the majority of its cases had been effective.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgery involves the operation of the retina, which is one of the most delicate portions of the eye, most individuals say that the operation can be very risky.\nSimply puts, a simple mistake might nearly trigger an individual's life time loss of sight. Thus, it is essential to consider many elements prior to choosing whether LASIK eye surgical treatment is the right corrective step this hyperlink one has to go through.\n2. It is not a perfect treatment\nLASIK eye surgery may fix your vision however it does not always suggest that it can provide you a ideal vision. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not necessarily suggest they have perfect vision.\nGiven all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical right here treatment the way many people see it\nAlternatively, the examination of the structural part of the eye may be made in numerous ways. It ought to be well kept in mind that a client with an eye problem may have other problems. Typically other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can notify the patient and the physician to troubles in some disturbances of other parts of the body even before other signs provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://www.hardsciencenews.com/new-microscope-optics-completely-destroy-diffraction-barrier-revealing-whole-new-understanding-cells/","date":"2023-09-23T18:15:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.19/warc/CC-MAIN-20230923162848-20230923192848-00726.warc.gz","language_score":0.9355195164680481,"token_count":871,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__249045137","lang":"en","text":"New Look on Science\nA new era of science is upon us. Unlike before now when science relied on basic microscopy to illuminate cells that were previously too blurry to imagine what was actually going on inside. Now with the help of high-speed imagery, and fluorescent emissions microscopy, we can see exactly what is going on in the underpinnings of life by breaking the diffraction barrier.\nMicroscopes were first invented in 1590 by two eyeglass makers later to have the term, “Microscope” coined by Giovanni Faber coined the name microscope for Galileo Galilei‘s compound microscope in 1625. We now commonly use the modern light microscope that we’ve all probably played with at some point in our early schooling.\nThe issue with modern light microscopes is the fact that when looking at cells they are blurry. Further, more complex microscopes such as electron microscopes is the fact that there is a great deal of preparation in order to look at something. Generally something has to be suspended in formaldehyde, or plated in gold.\nNow with the recent break through in microscopy we can see exactly what is going on in a cell. Previously, the diffusion barrier warped light around cells giving them a lensed effect just like when looking at a cluster galaxy with a black hole in front of it (lensing effect). The significance of this break through is the fact that we now know for certain which processes are happening when we are looking inside of a cell.\nSIM (~100 nm)\nStructured illumination microscopy shines a striped pattern of light onto a sample. That light interacts with light from fluorescent tags on cellular material and generates a pattern of interference called a moiré fringe. Using a series of moiré fringes it’s possible to mathematically extract and reconstruct a super-resolution image. SIM is ideal for looking at entire cells in 3-D, ensembles of cells or multiple cellular structures at once. View larger image SIM: Lothar Schermelleh, Univ. of OxfordSTED (~30–70 nm)\nWhen a focused light beam hits a fluorescent-tagged specimen, it generates a blurry halo. With stimulated emission depletion microscopy, a second laser shines a doughnut-shaped beam of light that turns off the excited molecules in the halo. This provides a sharper view that, when scanned across the sample, produces a super-resolution image. View larger image\nSTED: R. Medda, D. Wildanger, L. Kastrup and S.W. Hell/Max Planck Institute\nPALM (~10–55 nm)\nPhotoactivated localization microscopy incorporates into a sample special fluorescent proteins that can be toggled between on and off states when hit with a particular wavelength of light. This allows researchers to illuminate a subset of molecules in a sample and eliminate overlapping fluorescence that would blur details if everything in the sample was lit up at once. iPALM (interferometric PALM) provides images in 3-D. View larger image\nPALM: J.A. Galbraith, G. Shtengel, H.F. Hess and C.G. Galbraith/NINDS/NIH, Janelia\nSTORM (~20–55 nm)\nStochastic optical reconstruction microscopy, developed around the same time as PALM, also relies on fluorescent tags that can be switched on and off. In STORM’s case, the tags can be dyes or proteins. Using dyes may require an extra step, but they can be switched on and off more quickly and don’t burn out as fast as fluorescent proteins. Dyes can also be attached to genetic material. View larger image\nSTORM: M. Bates et al/Science 2007\nIndeed such inventions are so new that many scientists are certain there are many new discoveries to come. Who knows what sort of views these new techniques may yield with a few more tweaks, and inventions.\nAs mentioned before most science about cells is simply hypothesised about how they operate. Now we can look inside and see how exactly they are working with their co-habitants. Science is amazing.","domain":"optical_engineering"}
{"url":"http://wakrec.blogspot.com/2018/04/indirect-ophthalmoscopy.html","date":"2019-03-19T01:29:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912201882.11/warc/CC-MAIN-20190319012213-20190319034213-00421.warc.gz","language_score":0.9758794903755188,"token_count":982,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__127638068","lang":"en","text":"These are important examinations but are unpopular among patients for a few reasons. They require extra time for the eye drops to take effect, and then that effect lasts for several hours. During that time the eyes are particularly sensitive to light, and the vision is often blurry making it difficult to drive and to read.\nMy brother is an ophthalmologist and he pointed out to me an article written by a couple of doctors at the University of Illinois (here) in which they described building a non-mydriatic fundus camera. Mydriasis is the dilation of the pupil and in this case fundus refers to the inside back of the eye. These instruments are available but they are extremely expensive. The interesting thing about this article is that it describes building such a camera using a Raspberry Pi with a Pi Camera.\nThe key idea in the article is that instead of using a chemical to dilate the patient's pupil, the patient is placed in a darkened room and the pupil is allowed to dilate naturally. The problem with this approach is that in the dark the examiner cannot see to focus the camera, and because the dimensions involved are so small, the focus is critical. However, the article describes using a combination infrared and white LEDs for illumination. Generally, electronic cameras are sensitive to infrared light but human eyes are not. Thus, the examiner illuminates the eye in infrared light and viewing the image from the camera is able to focus, and then flashes the white LED to take the picture. The white light produces an image with good color rendition, an important factor in performing the exam, but the flash is so fast that the patient's pupil doesn't react until after the picture is taken.\nA significant advantage of an inexpensive fundus camera is that the retina could be imaged in settings other than a doctor's office. Clinics, schools and so forth could capture the images and they could then be reviewed by a retina specialist at a later time. My brother suggested that we try to build one of these camera systems, and therein lies a tale.\nOne of the trickiest parts of taking a picture of the retina is the fact that it must be taken through the pupil. Even when dilated that is an opening of only a very few millimeters. Through this tiny opening light must be shone to illuminate the retina as well as the picture taken. That means that the light must be very close to the main axis of the camera lens. The University of Illinois group used a prototype of a tiny LED made by a Japanese company that can emit both IR light as well as white light. With the help of a Japanese friend of mine we undertook to obtain a few of these prototypes. Pending their arrival we did some experiments using a group of conventional LEDs and a partially silvered mirror (left). The idea was that the camera would take a picture of the eye as reflected in the front of the mirror while the eye was illuminated by LEDs behind the mirror. Thus the LEDs could be made precisely collinear with the camera.\nNow, the way the retina is usually examined is that the ophthalmologist uses a 20D hand lens that he or she holds close to the patient's eye. At the same time the doctor observes the image in the hand lens using a light source and another magnifying lens that is often worn as a headlamp. Getting a good view is tricky business because it involves moving the two lenses and light such that the image is appropriately magnified, while maintaining an adequate field of view as well as having the image in focus. This is complicated by the fact that if the patient is near sighted or far sighted the correct position of the lenses changes. With practice doctors develop a good facility for this. As you might imagine, however, doing this with a camera, screen and light as well as the 20D condensing lens can be a challenge.\nWe built such a device and experimented around with it. We were completely unsuccessful at getting a clear view of the retina in IR light and thus could not get a good picture. Try as we might there were just too many variables, including the number of LEDs, the focus of the lens on the Pi Camera, the distances, the size of the device, etc., etc.\nAround this time the Japanese LEDs arrived. We replaced the conventional LEDs that we had been using. These new LEDs were SMT (surface mount technology) and so had tiny solder pads and presented their own challenges but we were able to get them closer to collinear with the camera and so eliminated the partially silvered mirror. Nothing else changed, including our results.\nWe thought it might make sense to go back to first principles so we started from scratch. This time we built an optical bench that we could use to do more precise experimentation. I'll show you that in my next post.","domain":"optical_engineering"}
{"url":"https://www.fomolooo.com/products/sarah-square-glasses-frame","date":"2023-09-24T13:05:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506646.94/warc/CC-MAIN-20230924123403-20230924153403-00628.warc.gz","language_score":0.8612114787101746,"token_count":145,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__6158015","lang":"en","text":"The lens used for making these hot glasses is anti-reflective and anti-scratch. So, you can expect lesser glare when you use these frames with the lenses. Above all, the anti-scratch material will make it easier for handling the eyeglasses. The Tr90+Metal material used for making these frames makes your eyeglasses lightweight, flexible, and durable. Above all, this material makes your eyeglasses highly comfortable to handle. Further, we assure 100% secure checkout when you order these glasses with us.\nAbout the frames\n- Made from high-quality material\n- First-class craftsmanship\n- Anti-Scratch Lens coating\n- Anti-reflective coating","domain":"optical_engineering"}
{"url":"https://300bees.com/reflex-and-mirrorless-cameras-pros-and-cons/","date":"2023-12-04T16:20:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00714.warc.gz","language_score":0.9286143779754639,"token_count":389,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__301228680","lang":"en","text":"The substantial difference between reflex and mirrorless cameras is the way they capture images. The first one, also called DSLR (Digital Single Lens Reflex) has a mirror system that takes the light that comes through the lens and exposes the photo (darker or lighter). The later one, mirrorless cameras, as their name states, are cameras without mirrors.\nWhat does that mean?\nThat means that reflex cameras have an optical viewfinder, whereas mirrorless ones have an electronic viewfinder. In other words, with the reflex, you are not able to see the photography results live, and with a mirrorless, you can take a sneak peek at your work through the viewfinder.\nAdvantages of mirrorless cameras\n- Compact, light, and agile.\n- Quicker focus system.\n- The focus point covers almost all of the sensors.\n- On the viewfinder, you can see the final result of the photo before taking it\nDisadvantages of mirrorless cameras\n- They take up a lot of battery power to function.\n- They are not ergonomic.\n- The sensor is very exposed and it gets dirty easily because of the lack of a mirror system.\nAdvantages of reflex cameras\n- Stronger structure.\n- Excellent ergonomy\n- Better Battery Lifespan\nDisadvantages of reflex cameras\n- Bigger and heavier equipment.\n- Fewer focus points.\n- The focus speed is slightly slower.\nYou see, one can’t adventure to simply say one is better than the other, as the equipment recommendation will entirely rely on the use you’ll give to the camera. If you choose to do photography, a reflex camera is a really good choice. On the other hand, mirrorless cameras are going to be your best choice if you are aiming to be a videographer, because of their big sensor and higher quality pictures.","domain":"optical_engineering"}
{"url":"http://nedaero.com/fog","date":"2024-04-25T07:52:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00555.warc.gz","language_score":0.9122262597084045,"token_count":764,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__106118261","lang":"en","text":"Fiber Optic Gyroscope (FOG)\nNEDAERO introduces: the Fiber Optic Rate Sensor FOG\nThe NEDAERO Fiber Optic Rate Sensor FOG is a small palm of the hand-sized rate sensor. It provides turn rate for one rotational axis. The modular design allows a cost-effective realization of single or multiple sensing axis units.\nSuccessful development of High Performance FOG80N!\nSeptember 2020 – Our FOG-team is proud to announce that development of a High Performance Fiber Optic Gyro has been successfully completed. A new design has led to FOG70 and FOG80N, whereby FOG80N has a Stability @ Room Temperature of ≤ 0.2 °/hr. With this accuracy the FOG80N is suitable for high end stabilization and navigation solutions, which is often found in military applications. Another key feature is that the design is ITAR free.\nAt NEDAERO we are continuously striving to improve our products and innovative solutions.\nNEDAERO has a family of 3 FOGs with all unique specifications.\nThe (absolute) Scale-factor, Angle Random Walk and Bias Stability all have been improved.\nAll models are available and ready for delivery from stock.\nEarly 2018 NEDAERO has validated its Fiber Optic Gyro sensor for the aerospace industry. The FOG60 model has been successfully certified for a commercial airline program, and is now in series production. It’s a 100% European product whereby all materials are purchased from European suppliers.\nThe sensor is suitable for flight stabilization and attitude control of aircraft, helicopters, drones and missiles. Further application comprises Inertial Measurement Units and Navigation Systems. Other application examples comprise azimuth measurement of land vehicles, optics or antenna stabilization as well as high dynamical sensor platforms or other industrial purposes.\nA Fiber Optic Gyroscope can be used in aircraft and helicopters, but has also other application fields like ground vehicles, robots, optics or RF antenna stabilization and training simulator stabilization and high dynamical sensor platforms or other industrial purposes.\nThe base consists of a spool on which an ultra-thin glass fiber is winded in two directions. By measuring the phase-difference of two light beams, a Fiber Optic Gyro (FOG) calculates the speed in degrees per second with which it provides the turn rate of one rotational axis. Whenever FOGs are placed along the x-, y-, and z-axes, angular rates are measured in three dimensions. Three FOG’s can be combined with three acceleration meters to end up as an Inertial Measurement Unit (IMU). An IMU shows the acceleration and angular rate in three dimensions. The unit can be used for attitude control and navigation of missiles, drones, etc. Once you connect the IMU to a computer, you can determine the orientation, positioning and speed of the object. This system is called an Inertial Navigation System (INS). This system operates autonomous from a GPS system.\nThe FOG contains no moving parts and has obviously hardly any signs of wear. It has a high reliability and has a forceful, robust design. The modular design enables tuning of specifications to customer specific applications, e.g. dynamic range, bandwidth, bias-stability, noise and physical/environmental specifications. Conventional mechanic gyroscopes will be replaced more and more by this reliable and maintenance-free Fiber Optic version.\nKEY FEATURES AND BENEFITS\nFiber optic technology without moving parts\nAnalogue voltage output and Build-In-Test functionality\nRobust metal housing\nTemperature output for compensation.","domain":"optical_engineering"}
{"url":"https://infinivan.com/one-fiber-one-building/","date":"2019-07-23T18:52:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195529481.73/warc/CC-MAIN-20190723172209-20190723194209-00208.warc.gz","language_score":0.9414244890213013,"token_count":151,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__6562521","lang":"en","text":"InfiniVAN to introduce One Fiber One Building\nVarious enterprises and businesses nowadays are continuously expanding; one of the major key factors to effectively grow in the industry is by having the fastest and most reliable internet service. With this, InfiniVAN has been establishing an innovative way to provide and improve valued internet connection for every business.\nTrue to its commitment, InfiniVAN is set to introduce the One Fiber One Building concept which aims to build an infrastructure that will support business transactions through lowered latency network with the use of fiber optics technology.\nThrough fiber optics technology as the primary component of InfiniVAN’s internet service, it envisions to establish convenient, fast and reliable internet connection suited to the needs of several corporate businesses.","domain":"optical_engineering"}
{"url":"https://lcav.epfl.ch/imaging-through-a-scattering-medium/","date":"2019-10-21T12:48:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987773711.75/warc/CC-MAIN-20191021120639-20191021144139-00393.warc.gz","language_score":0.8775606751441956,"token_count":376,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__202663343","lang":"en","text":"Synopsis: Imaging through a scattering medium.\nDescription: When light passes through or reflects off a strongly scattering medium, such as a painted wall, the incoming light rays undergo many deviations making it appear as if the outgoing rays are random. However, it has been shown that it is possible to measure the scattering properties of a medium, so that one can predict how an incoming light ray will be output from the system and thus computationally unscramble the light. The aim of this project is attempt to recreate these results and take an image through a strongly scattering medium. Part of the project will involve modifying a standard LCD display so that it can be used as a spatial light modulator. Then, a basic optical setup will be built to characterise the transmission properties of a scattering medium. Finally, the same optical setup will be used to take an image through the scattering medium. Note, however, that this description presents an optimistic schedule for the project and the student will not be required to complete all tasks.\nDeliverables: Experimental setup and report.\nPrerequisites: The project encompasses signal processing, optics and some coding. While the student should have basic knowledge of these fields, assistance will be provided by advisors specialised in these areas.\nType of Work: ~70% experimental setup, ~30% signal processing algorithms.\n- Metzler et. al. “Coherent Inverse Scattering via Trasnmission Matrices: Efficient Phase Retrieval Algorithms and a Public Dataset”, IEEE Conference on Computational Photography.\n- Singh et. al. “Exploiting scattering media for exploring 3D objects”, Nature Light Sciences and Applications.\n- Mosk et. al. “Controlling waves in space and time for imaging and focusing in complex media”, Nature Photonics.","domain":"optical_engineering"}
{"url":"https://delvi.tech/delvitech-sa-is-now-iso-9001-certified/","date":"2024-04-18T08:26:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817200.22/warc/CC-MAIN-20240418061950-20240418091950-00504.warc.gz","language_score":0.9292082786560059,"token_count":391,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__1145071","lang":"en","text":"The automated optical inspection (AOI) company achieves ISO 9001 for the research, development, design, production, sales, delivery and support of AOI solutions for the electronic industry.\nDelvitech obtains the ISO9001 certification with the following scope:\n“Software research and development of AI and advanced computer vision algorithms, hardware research, development and design of custom high-performance cameras, projectors and LED illumination, design and production of electromechanical and optical assembly, final assembly, sales and delivery, technical service, and customer support of AI assisted automatic optical inspection (AOI) solutions for industrial electronic manufacturing”.\nISO 9001:2015 represents the international standard that identifies the requirements for the quality management system. International standards are fundamental for companies when they have to prove their proficiency to provide products and services that meet customers and regulatory requirements.\n“We are thrilled with this achievement, which demonstrates our growth path over the past 5 years,” said Roberto Gatti, CEO of Delvitech. “This certification reflects our commitment to give our customers the best possible quality for our products by monitoring and constantly improving our research, development, design, production, sales and technical support processes, always putting the customer’s needs at the center.”\nAbout Delvitech SA\nDelvitech SA was founded in 2018 by an experienced team. The company develops and produces automated optical inspection systems for the electronics market. The purpose of AOI systems is to perform visual inspection during the manufacturing process. Optical inspection systems are designed using software that is based on Artificial Intelligence. Delvitech AOI systems are mainly used for the inspection of assembled printed circuit boards (PCBA) by electronic manufacturing services. The company has entered a collaboration between its R&D and IDSIA, an important research institute for artificial intelligence, and the Department of Innovative Technologies of SUPSI.","domain":"optical_engineering"}
{"url":"https://www.techie-jim.net/science/efficiency-boost-laser-ignition-of-combustion-engines/","date":"2022-05-23T14:04:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662558030.43/warc/CC-MAIN-20220523132100-20220523162100-00291.warc.gz","language_score":0.9582299590110779,"token_count":278,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__94336956","lang":"en","text":"Next Big Future reports on an advancement that could boost vehicle mileage by ~10 mpg (miles per gallon). Cars that previously achieved 40 mpg could achieve 50 mpg with a nearly 30% advancement in efficiency. The advancement comes from using a laser to ignite the fuel within the combustion cylinders instead of spark plugs.\nLasers have been a potential replacement for spark plugs for decades but were too big and power-hungry to use within a car. Since then miniaturization of the technology as well as efficiency gains in laser technology are allowing the technology to be used in smaller vehicles without overloading the capacity of the battery. The system is also being considered for larger vehicles such as shipping vessels to improve fuel usage and reduce emissions.\nPrinceton Optronics, Inc., a New Jersey based producer of lasers and related optical systems has already demonstrated the use of laser ignition in an engine. Ignition using a laser is more efficient than spark plugs since the ignition point can be designed to happen lower in the cylinder allowing for a more thorough burn of the fuel. Lasers could also fire multiple types during a single cycle allowing burn-off of a greater amount of fuel which can reduce emissions further. Even through oil prices have dropped we still continue to look for ways to make engines more and more efficient while simultaneously seeking alternative fuels. Low oil prices are a relief but will not last forever.","domain":"optical_engineering"}
{"url":"https://academicsuccess.ucf.edu/our/research/tracking-atoms-and-molecules-during-photoinduced-chemical-reactions-with-femtosecond-extreme-ultraviolet-laser-pulses/","date":"2024-03-01T10:26:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00513.warc.gz","language_score":0.8694906234741211,"token_count":241,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__130399190","lang":"en","text":"A state-of-the-art femtosecond laser system is used in conjunction with a high harmonics generation source and a monochromator to produce femtosecond laser pulses in the extreme ultraviolet spectral range. These laser pulses are employed to track the ultrafast dynamics of molecules such as bond breaking and bond making, with time , mass-, and energy-resolution. The main goal of this research is to fully understand the molecular dynamics of photoinduced and photocatalytic reactions at solid surface and interfaces.\nSuccessful applicants interested in conducting research within this laboratory will work closely with graduate students and will gain insights into ultrafast spectroscopy, generation of extreme ultraviolet laser pulses, synthesis of novel photocatalytic materials, characterization techniques and ultrahigh vacuum science.\nStart Date: 1/8/2024 - End Date: 4/28/2024\nType of Project\n10 hours/week hour(s)\nStudents are required to work in lab, read scientific publications, give presentations, and write reports\nInterested in Working With the Following Programs\nFor EXCEL URE Students Only\nHonors Undergraduate Thesis\nIndependent Research Credit (4912)","domain":"optical_engineering"}
{"url":"https://6pcolor.com/","date":"2023-06-05T03:18:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650620.66/warc/CC-MAIN-20230605021141-20230605051141-00771.warc.gz","language_score":0.8361712098121643,"token_count":668,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__63744683","lang":"en","text":"With the FCR™ system’s increased luminance and color applied to digital cinema projection technology, the alluring stories told on the big screen will be even more captivating.\nThe Full Color Range\nUsing patented technologies called Full Color Range™ (FCR), you can now accurately transport and display all the vivid colors humans can perceive.\nWe enable Color Without Limits™\nCOLOR WITHOUT LIMITS™\nYou’re Missing Colors. From the movie screen to your home television, today’s RGB displays show only 45% of all the possible colors the human eye can see. 6P Color’s Full Color Range™ system can express all the colors in Nature.\nA new era of\nDIGITAL COLOR IMAGERY\nSolving a Systems Problem\nThe Full Color Range™ system preserves color data throughout the content pipeline. Digital cameras capture a broad spectrum of color data but it is lost in the content pipeline as it reaches digital RGB displays. FCR™ preserves RAW color data captured by a camera, or digitally created (animations, effects), and transports all captured colors to digital displays.\nThe FCR™ system leverages technology already used in digital workflows, with minimal changes needed to Academy Color Encoding System (ACES). Our FCR™ system can coexist with legacy RGB displays and workflows. This technology is a “colorimetric” mapping solution enabling manufacturers to create displays using any colors desired.\nSeeing more colors with the FCR™ system is an awe inspiring experience, but the benefits of the FCR™ system don’t stop there. From increased brightness to power savings to color consistency across different displays, the FCR™ system will transform how we see digital imagery in new and vivid ways.\n“ Full Color Range technology is not just Bit-Depth or Gamut, it’s not just Chromaticity and Luminosity… FCR™ is color system that allows our audience to really feel the emotional message that true and complete color can impart”\nThe Impact Of\nFULL COLOR RANGE™\nICVFX workflows are complicated by color-related issues with LED wall technology. Optimizing color in VP management workflows with the FCR™ system produces images that look more realistic and consistent.\nFor stories that are made digitally, not just captured in-camera, the FCR color technology affords digital artists new ways to build photorealistic visual effects and create the next fantastical animation.\nAdding a greater number of more realistic colors using the FCR™ system will enhance the realism of AR/VR immersive and gaming environments without sacrificing latency.\nFCR system preserves data captured by the cameras so that more color data is available to creatives, thus reducing the time-consuming need to create multiple color grades.\nThe FCR™ system can be used to exploit native capabilities in a variety of existing displays, offering a significant visual enhancement even before adding additional primaries.\nFrom theme parks to art installations to concert venues, more colors and more captivating visuals with the FCR™ system means more ways to enliven any story and make a unique digital experience even more memorable.","domain":"optical_engineering"}
{"url":"https://dejongsurveying.com/services/surveying/","date":"2022-07-01T04:44:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103920118.49/warc/CC-MAIN-20220701034437-20220701064437-00469.warc.gz","language_score":0.8805333971977234,"token_count":284,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__165296855","lang":"en","text":"High resolution aerial images are created cameras attached to unmanned aircrafts. It is possible to capture images up to 200 meters at a much lower cost to the alternative of renting an airplane or helicopter.\nUsing it for real estate, marketing or event management, videos captured from the sky are affordable. The quiet, gimbal stabilized aerial cameras caputre 4k videos with ease.\n[youtube https://www.youtube.com/watch?v=xqpqLwA1Sr4][youtube https://www.youtube.com/watch?v=HG7erxyRFNY]\nHaving an aerial platform in the sky to perform a survey elimintates the need for personnel on the ground, reducing downtime and increasing safety for the entire workforce.\nThis survey enables the client to map the area in a faster, more efficient and accurate when compared to conventional surveys.\nFewer man hours –> cost efficient solution.\nAerial images presents the client with information over a large area in no-time. The multispectral camera detects within the near infrared spectrum which allows to determine plant stress.\nDue their possiblities UAV’s are used all around the world, they are easy to deploy, have a superior resolution and are not susceptibility to cloud cover.","domain":"optical_engineering"}
{"url":"https://myredrhino.com/product/philips-essential-led-bulb-7watts-screw-type/","date":"2024-04-20T22:19:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00327.warc.gz","language_score":0.8925303220748901,"token_count":324,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__65420190","lang":"en","text":"Philips Essential LED Bulb 7Watts E27 Screw Type\nKSh 205 – KSh 2,260\nPhilips Essential LED Bulb 7Watts\nEnjoy up to 80% brightness and greater energy efficiency with this Philips LED bulb.\nWith an impressive long-lasting life span, Philips LED bulbs provide a carefree experience for 20 years.\nPhilips LEDs produce light that is free from UV and infrared rays, keeping your family and environment safe from harmful radiations.\nPhilips LED bulbs have an inbuilt electronic driver that ensures a flicker-free experience so your eyes don't get irritated. Philips LEDs have a low flicker index of 5.2% and lowest SVM at 0.643.\nPhilips LED bulbs reduce the excessive sensitivity caused by the surface brightness so they don't strain your eyes even when you look directly at them.\nPhilips LED bulbs save up to 85% of energy without sacrificing light output and quality. They guarantee safety, uniformity and colour consistency.\nA light bulb that produces light perceived as yellowish white has a color temperature of around 2700K. As the color temperature increases to 3500K-4000K, the color of the light appears less yellow and more white. When the color temperature is 5000K or higher the light produced appears bluish white.\nProduct Information Courtesy Philips Lighting","domain":"optical_engineering"}
{"url":"https://showtechnic.com.hr/shop/svjetlo/rti-piko-42-rygb/","date":"2024-04-24T03:32:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818999.68/warc/CC-MAIN-20240424014618-20240424044618-00232.warc.gz","language_score":0.8665106892585754,"token_count":1376,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__176925635","lang":"en","text":"Built with the latest RTI Semiconductor Laser Module technology and an extra-visible yellow OPSL head!\nThe RTI PIKO 42 RYGB is made in Germany and is a powerful show laser system with extremely good visibility that is ideally suited for top professional laser show applications of any kind. It is built with the latest RTI semiconductor laser modules that are specially designed in a way to keep spot size as well as divergence equal on both x- and y-axis. This is significantly advantageous over solutions with a very good divergence on one axis, but a bad divergence on the other. The laser modules inside the RTI PIKO 42 RYGB are different – the spot size and shape is equal for all colors and on both axis!\nThe color range is extended with a yellow Coherent Taipan OPSL module for increased visibility – and matching spot size.\nThe beam specifications of the RTI PIKO 42 RYGB are given with only ca. 5.0 mm diameter and 0.7 mrad divergence – which applies to both axis, so it’s an actual value not an average and provides higher quality results than specifications with mixed calculations. The extremely small beam diameter allows for the use of very small mirrors, which results in reduced inertia and thus very good scanning performance.\n42’000 mW total RYGB power in a small housing of only 271 x 491 x 296 mm\nsuper small spot of ca. 5.0 mm for reduced inertia and thus fast scanning\n6’000 mW / 577 nm yellow Coherent Taipan OPSL module for increased visibility\nAll wavelengths matched in divergence and beam size\nextremely low divergence of 0.7 mrad – on both axis!\nCompact form factor, RSL module size equal to the Coherent OPSL modules\nextremely lightweight unit with only 28 kg\nDifferent, brighter wavelengths for increased visibility\nbrilliant colors and great color fading\nRTI Semiconductor Laser Modules match up with the added Yellow OPSL in spot size and divergence\nLaser modules do not come out of internal alignment\nMaintenance free laser modules\nIntegrated network switch, control signal can easily be linked through\nInterlock / e-stop signal can be daisy-chained\nHigh quality product, made in Germany\nGreat scanning performance suitable for projections as well as for beams\nThe RTI PIKO 42 RYGB impresses with a guaranteed RYGB output power of 42’000 mW. Great visibility is achieved with the new RTI Semiconductor Laser Modules (RSL) with special wavelengths for increased visibility: 8’000 mW / 637 nm for a very bright red combined with 13’000 mW / 525 nm green and a strong blue laser module with 22’000 mW / 455 nm. An additional yellow Coherent Taipan OPSL head with 6’000 mW / 577 nm is added for significantly increased visibility – yellow is the best visible color to human eye. The 525 nm green provides a warmer green tone than the 520 nm diodes and also has increased visibility.\nThese new RSL modules with their extremely low divergence and homogenous beam shape make the RTI PIKO 42 RYGB a top professional laser system. The extremely small beam diameter of only ca. 5.0 mm allows for the use of small scanner mirrors which leads to reduced inertia and higher scan speeds. This is especially important, as the RTI PIKO 42 RYGB can be used for any kind of laser show application: Super sharp beams and vivid colors for large scale concerts and festivals but also a perfectly matched beam for crisp graphics.\nThe RTI Semiconductor Laser Modules are maintenance free and do not come out of internal alignment.\nThe standard scanners can be run at a maximum of 45 kpps@8° ILDA and a maximum scan angle of 50°. CT-6210 scanners with LAS Turboscan drivers are available as option and provide even higher scan speeds with up to 60 kpps at ILDA 8°.\nThe housing is built very durable and ideal for use on the road. The new 360° brackets can be safely fixed in the needed position in just a few moments thanks to the quick-lock system. It has an interlock / e-stop through port, which allows for daisy-chaining the interlock signal, which means that only one e-stop is required for several laser systems. Due to the dustproof housing, the maintenance effort is very low and the device is also suitable for tough touring applications. Control signals can be looped through directly via the network switch, which is also integrated.\nThe powerful RTI PIKO 42 RYGB is suitable for indoor and outdoor show laser applications at concerts, festivals and other huge events. Demanding graphics projections or projections over long distances are possible without any problems, due to the extremely good divergence.\n– 42’000 mW guaranteed power\n– Advanced RSL Semiconductor modules for extremely good beam shape and low divergence, which is equal on x- and y-axis, combined with OPSL\n– Addition of high visibility 577nm yellow OPSL\n– Extremely sharp intense beams especially compared to other lasers of this power\n– Integrated intelligent LaserAnimation Sollinger Mainboard\n– Integrated network switch for linking the control signal\n– Integrated Touch-Display for adjustment of basic functions\n– Rugged tour grade housing\n– 360° Bracket with quick-lock system\n– Incl. waterproof flightcase and rain cover\n– operating temperature: +5°C to +45°C\nCijena ——-BEZ POREZA——-: 45900,00 €\nMaestro, Mastercard, Visa do 12 rata.\nDiners, Diners Club do 36 rata.\nUkoliko ste zainteresirani za ponudu, nazovite nas na 095/858-1658 ili kontaktirajte putem maila;\nZa više informacija, potražite nas na društvenim mrežama:\nIli na našem webshopu: https://showtechnic.com.hr/.hr/","domain":"optical_engineering"}
{"url":"https://full-focus.ocsuk.co.uk/nikon-d3400-24-2-mp-dslr-camera-18-55mm-vr-af-p-lens-in-uk/","date":"2020-07-11T02:40:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655919952.68/warc/CC-MAIN-20200711001811-20200711031811-00159.warc.gz","language_score":0.8852203488349915,"token_count":362,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__14888019","lang":"en","text":"Nikon D3400 24.2 MP DSLR Camera + 18-55mm VR AF-P Lens IN UK\nClick Below Images to Enlarge\nThe Nikon D3400 Digital SLR Camera has a 24.2MP sensor that captures pictures with amazing clarity. The 100-25600 ISO sensitivity is perfect for low-light shooting and fast moving subjects. Record family movies or dramatic films thanks to the 1080p Full HD capabilities. Use built-in bluetooth to pair your camera with your smartphone for easy sharing. Additional features: no optical low-pass filter, 3.0″ LCD, 11-point AF system, 5 fps continuous shooting, plus more!\nThe included AF-P DX NIKKOR 18-55mm f/3.5-5.6G lens is a standard zoom lenses covering the 18-55mm range of focal lengths (effective angles of view equivalent to those of a lens with 27-82.5mm focal lengths in FX and 35mm  formats). AF-P lenses realize fast and quiet AF operation via the adoption of a stepping motor to drive AF for fast and quiet autofocusing. With Its featured Vibration Reduction (VR) mechanism it provides a camera shake compensation equivalent to a shutter speed 4.0 stops (with testing in accordance with CIPA standards) faster. Lens is compact and lightweight, DX-format compatible, 3.1x normal zoom lens with 18-55 mm focal-length range and f/3.5-5.6 maximum aperture. This lens has two aspherical lens elements that are employed to deliver superior optical performance with minimal lens aberrations. In addition, this lens has a compact and lightweight design with a retractable barrel for excellent portability.\nPurchase with confidence from eBay","domain":"optical_engineering"}
{"url":"https://techtree.com/content/news/10647/blips-lens-redefines-smartphone-cameras.html","date":"2023-11-30T04:05:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.87/warc/CC-MAIN-20231130031610-20231130061610-00222.warc.gz","language_score":0.9074253439903259,"token_count":529,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__27086105","lang":"en","text":"13:09 23rd May, 2016\nBlips Lens Redefines Smartphone Cameras | TechTree.com\nBlips Lens Redefines Smartphone Cameras\nThe project backed by Kickstarter, Blips lens stick on to the exterior glass of the smartphone camera and helps to capture micro and macro shots.\nBlips lens is the world’s lightest and thinnest pair of adhesive stick on lens which helps capture powerful microscopic images. The lens is available with micro and macro magnifications.\nThe Blips Macro lens magnifies up to about 10 times. The optimal distance at which it works from a specimen is about 0.5 in (13 mm). The Blips Micro, meanwhile, can achieve magnification of over 100 times and can recognize details of about 1/7000 in (1/275 mm). This means it possible to use it to look at things as small as cells, with the optimal working distance for doing so being about 0.25 in (6.4 mm).\nThe electrostatic adhesive surface of the lens is easy to use and does not damage the glass exterior of the smartphone camera. The lens can also be mounted upon a flexible film, though, with reusable adhesive bands that stick to the body or case of a phone so as to help keep the lenses in place.\nCreated by Smart Micro Optics, the Blips lenses are designed to work on all models of smartphone and tablet. The company says they are small enough to be kept attached to a device and even in a pocket without adding any inconvenient bulk. Indeed, the Macro lens is about 1/50-in (0.5-mm) in height, while the Micro lens is about 1/20-in (1.2-mm) in height.\n- DRIFE Begins Operations in Namma Bengaluru\n- Sevenaire launches ‘NEPTUNE’ – 24W Portable Speaker with RGB LED Lights\n- Inbase launches ‘Urban Q1 Pro’ TWS Earbuds with Smart Touch control in India\n- Airtel announces Rs 6000 cashback on purchase of smartphones from leading brands\n- 78% of Indians are saving to spend during the festive season and 72% will splurge on gadgets & electronics\n- 5 Tips For Buying A TV This Festive Season\n- Facebook launches its largest creator education program in India\n- 5 educational tech toys for young and aspiring engineers\n- Mid-range smartphones emerge as customer favourites this festive season, reveals Amazon survey\n- COLORFUL Launches Onebot M24A1 AIO PC for Professionals","domain":"optical_engineering"}
{"url":"http://www.lickcreekcrossing.com/index.php/fiber-to-the-home/","date":"2021-04-21T02:36:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039503725.80/warc/CC-MAIN-20210421004512-20210421034512-00321.warc.gz","language_score":0.9318293929100037,"token_count":488,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__137244478","lang":"en","text":"Fiber to the Home\nLeading the Way\nBuilding a home is an investment in the future and part of that future is the infrastructure supporting the community. While fiber to the home is considered the future of technology, it is still not available in most non-metropolitan areas. This will change in Bryan/College Station when The Crossing at Lick Creek comes online as the first fiber to the home development with full access to fiber telecommunications.\nWhat is Fiber to the Home?\nFiber to the Home (FTTH) refers to the installation and use of fiber optic cables to carry digital information directly to homes. These cables are made up of hundreds of fiber optics, which are long thin strands of pure glass that are capable of sending and receiving data at the speed of light. Fiber has a higher bandwidth capacity and can easily transmit applications like internet, telephone and video content, with plenty of capacity left over for new applications of the future.\nWhat are the benefits of FTTH?\nFiber technology provides almost unlimited bandwidth, which means it has thousands of times the transmission capacity of copper wire. Fiber optic cables carry voice, data and video signals at speeds well over 20 times faster than today’s fastest high-speed data connections by using laser-generated pulses of light to transmit the signals. This allows FTTH to accommodate a wide variety of data and video applications, from interactive content and telecommuting to audio and video on demand.\nBecause the fiber optic cables are buried, customers are less likely to experience outages due to ice, storms or other external causes. Fiber optic cables are also less susceptible to problems than traditional copper wires and can withstand the shock and vibration from inclement weather. Fiber does not conduct electricity, is not affected by heat and cold or electric fields from nearby lines, and has a longer lifespan than copper or coax.\nVoice and data transmissions via FTTH are more secure than when they are sent over conventional copper cable connections. The use of fiber eliminates the ability to tap, or eavesdrop, through contact with the delivery system.\nFTTH is considered “future proof” and offers the flexibility to deliver additional services in the years to come. FTTH provides the flexibility to more easily adapt to customer preference, since new products and services can be activated remotely, either permanently or on demand.\nClick here to listen to a radio interview clip about our Fiber to the Home!","domain":"optical_engineering"}
{"url":"https://gabed.net/monitor/best-rear-view-mirror-monitors/","date":"2021-10-23T16:56:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585737.45/warc/CC-MAIN-20211023162040-20211023192040-00338.warc.gz","language_score":0.905215859413147,"token_count":1753,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__278288671","lang":"en","text":"Best Rear View Mirror Monitors – A rear-view mirror Monitors (or rearview mirror) is a mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle’s rear window (rear windshield).\nIn cars, the rear-view mirror is usually affixed to the top of the windshield on a double-swivel mount allowing it to be adjusted to suit the height and viewing angle of any driver and to swing harmlessly out of the way if impacted by a vehicle occupant in a collision.\nThe rear-view mirror is augmented by one or more side-view mirrors, which serve as the only rear-vision mirrors on motorcycles and bicycles.\nROUND UPback to menu ↑\n1.Pyle Backup Car Camera\n- BACKUP CAR CAMERA: A rugged backup rear view camera with true color reproduction and video output of 10V PP 75 Ohm It has a low lux performance and a wide viewing angle at 170° Has color image reproduction and auto white balance\n- LCD MONITOR SCREEN: This backup camera monitor comes with a 43 inches LCD mirror monitor screen display and NTSC/PAL video system Has a built into rearview mirror assembly with universal sized clips Also has the ability to connect to 2 video sources\nThe PLCM34WIR is a nightvision-capable rear view camera and monitor for your vehicle. The rear view camera mounts easily above your license plate and outputs crystal clear video over an RCA jack. And there’s no wiring required – this system is wireless, so you’ll be able to see behind you on the included 3.5” monitor in your car in a flash!\nPerfect for backing into tight spots or moving in reverse when visibility is limited – it’s like having an extra eye. And this model comes with nightvision LEDs, which illuminate the area behind you at night. This small and durable unit will keep you safe and secure because you’ll always know what’s going on around you.\nThis model uses a wireless signal to send video data from the camera to the monitor, so you don’t need to run a video cable from the camera to the monitor. This makes it perfect for larger vehicles like trucks, vans, and limos where running the cable may be difficult or impossible.back to menu ↑\n- 【Multi-function】This PONPY 7 Inch color TFT LCD screen has a resolution of 800x480 pixels. It is a multi-function mirror monitor, it can be used as a normal rear view mirror,and also a perfect companion monitor screen for universal backup cameras when reversing.\n- 【Parking Rear View Priority】When hanging your car into reverse gear, the screen will automatically switch to reversing image screen, make it more safer and convenient even in the night to avoid children, traffic, pedestrians,toys, pets and so on. Warm tips: Blue screen appears if there is no video signal.\nSuper slim design with 1/3 inch thickness, screen aspect ratio is 16:9. This 7″ LCD monitor is designed tiny and light, you can even carry it in your handbag. Warm tips: The headphone jack is still in testing phase which can not be used temporarily.\nThe super 7 inch TFT LCD monitor display screen with HD 1024*600 high resolution delivers excellent detail, work stable and anti-jamming, bright saturation image and high color reduction give you a pleasant visual enjoyment.\nItem size: 7.09″(length)x4.72″(width)x0.33″(thickness), package weight: 1.25lbs. Built-in 1.5W high fidelity speaker, with high sensitivity touch buttons operation and full-function remote control, make it more convenient to operate via multi-language menu.back to menu ↑\n- [OEM look design] Driving with your fully updated rear-view mirror! Along with the supplied bracket, it can replace your existing rear-mirror completely. It can also keep the dash cam away from vibrations or jolts effectively while driving, which could offer a stabler image than the rubber band method. The bracket can be compatible with most car models on the market. If the supplied mount is not compatible, you can also use the supplied rubber band to attach it to the existing rear-view mirror.\n- [Super HDR Rear Camera] The AS4 mirror dash cam adopts fully updated Sony IMX464 Super HDR rear camera, which can reduce dazzle and overexposure from headlights behind you effectively. Different from other normal HDR rear camera, which can only reduce dazzle in the near distance, the AS4 can provide you a clearer rear image at day and night.\nNikoMaku AS5 Driving Recorder Mirror Front Rear View Camera OEM Design Rear View Camera 10 Inch 2K Touch Screen Full Screen 170 Degree Wide Angle Rearview Mirror Camera Dual Camera Waterproof\nCombined with the included mount, the AS5 drive recorder can completely replace your existing rearview mirror. It can also effectively protect the dashboard camera from bumping or shaking while driving, providing a more stable image than the rubber band method.\nThe included stand is compatible with the existing mirror base, as shown in the photo above. If the included cam bracket is not compatible, you can also use the included rubber band to attach the dashboard cam to an existing mirror.back to menu ↑\n4.VanTop H610 10″\n- 【2.5K Dual Cams with Wide FOV】 Dual cams provide with Ultra HD video resolution up to 2560 x 1440P (2.5K). Offer you much clearer footage capturing license plates from a distance. 170° adjustable front lens and 160° rear lens cover total 330° field of view to reduce blind area and capture more scenes on the road.\n- 【Enhanced Starlight Night Vision】 Equipped with advanced Sony \"Starvis\" sensor, the dash cam captures sharp videos with enhanced details at extreme low light conditions. Make it a trustworthy guardian for your car all day and night.\nThe VanTop H610 10-inch 2.5k mirror dash cam is a self-contained front camera and display that is affixed to a vehicle’s mirror. A rear camera and extension cable is included. The device simultaneously records video from both front and rear cameras for later playback.\nWe’ve all heard tales of the minor fender-bender that somehow becomes a major lawsuit. Several years ago, I decided to install dashcams in my vehicles as unbiased observers to highway shenanigans. I was interested to see how Vantop’s H610 10-inch mirror camera would perform.back to menu ↑\n- 【2.5K FHD Car Camera & Safe Parking】Analogy High Definition of 2560*1440p@30fps for front and 1080P rear view mirror camera presents super night vision in low light conditions, and the backup camera display with guide lines assist you safe parking. It is flexible and convenient for you to adjust the view angle by sliding your finger on the touch screen when driving or reversing.\n- 【IPS 10 Inch Streaming Media Full Touch Screen】The 2.5K Streaming Media dash cam mirror featured Full HD sharp colors IPS touch screen will synchronously display rear view viewing when car starts and present a clear and crisp video quality with high resolution in day or night.\nFor some people, portable monitors are a necessity – they provide the additional screen space, which can come in very handy if you’re constantly on the go and often stay in hotels (we have top overall picks here if you want to learn more).\nBut what if one wants such a device without spending too much money? The solution lies in Toguard’s newest model, which is a 7-inch portable monitor that sports the resolution of 1024 x 600 and comes with some pretty useful features. Thanks to its price, it’s already highly popular with the users – so let’s check out what it has to offer!back to menu ↑\nBest Rear View Mirror Monitors – New, larger automobiles often come standard with LCD screens and cameras to eliminate blind spots. Unfortunately, older models — the very vehicles that revealed the need for these tools — usually lack this technology. That doesn’t mean you have to keep driving blind or upgrade to a new vehicle, however. An after-market rearview mirror screen can bring your current vehicle up-to-date.","domain":"optical_engineering"}
{"url":"http://www.lensandlasers.com/laserguard-kahr-p9-pm9-p40-pm40","date":"2017-03-29T03:12:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190181.34/warc/CC-MAIN-20170322212950-00521-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8594328761100769,"token_count":280,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__286473405","lang":"en","text":"The Crimson Trace LG-437 Laserguard laser sight for Kahr Arms 9 mm and .40 S&W pistols is ideal for these sub-compact carry guns. The laser sight gives you instant target acquisition. Fit the Kahr Arms P9, PM9, P40, PM40, CW9, CW40, TP9 and TP40 models.\nThe LG437 laser sight fits over the pistol's trigger guard, and is easily installed with a couple of small allen screws.\nThe Crimson Trace LG-437 laser sight is activated by a instinctively-placed pressure switch just below the trigger guard. The hard polymer construction will give you years of reliable use. The ultra-compact 3.3 millimeter diode allows the sight to fit on the pistol with no change to the feel or handling.\nLaser activated by front activation switch\nGrips are user-adjustable for both windage and elevation.\nComes with a three-year full factory warranty\nThe beam intensity is the maximum allowed by federal law. Beam Intensity is 5mw peak, 633nm, class IIIa laser.\nLaser dot size is approximately one-half inch in diameter at 50 feet.\nRequires two #357 silver oxide batteries (included) or one 1/3N 3 volt lithium battery.\nCrimson Trace Part # LG-437","domain":"optical_engineering"}
{"url":"https://www.hannainst.com/holmium-filter-hi801-11.html","date":"2023-12-06T16:34:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100602.36/warc/CC-MAIN-20231206162528-20231206192528-00688.warc.gz","language_score":0.8832684755325317,"token_count":314,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__63196649","lang":"en","text":"The HI801-11 is a holmium oxide glass filter that is used to validate the wavelength accuracy of the HI801 iris spectrophotometer. The filter is mounted in a 10 mm square anodized holder and comes with a protective plastic holder that protects the filter when not in use.\n- Glass filter mounted in anodized aluminum holder.\n- Absorbance peaks measured at 361, 454, 536, and 638 nm.\n- Fits all spectrophotometers that can accommodate 10 mm square cuvette.\nThank you for your interest in our products. A representative will contact you within the next business day.\nThe HI801-11 is traceable to SRM2034 and is supplied with certificate of that identifies the peak absorbance values of the filter within 0.1 nm of uncertainty. The HI801-11 holmium oxide filter is used with the wavelength check mode found in the HI801 iris spectrophotometer. The filter is placed into the meter and the wavelength check mode is then used to verify the wavelength positioning. Once the check is complete the meter will display the wavelength peaks and they are compared to the values found on the certificate. The values should be within ±1.5 nm of the certified value.\nHI801-11 Holmium Oxide Filter\n- Supplied with certificate of analysis traceable to SRM2034\n- All values are certified and have an uncertainty of less than 0.1 nm\n- Packaged in light tight plastic cuvette holder","domain":"optical_engineering"}
{"url":"https://www.ato.gov.au/business/gst/in-detail/gst-issues-registers/health-industry-partnership---issues-register/?page=114","date":"2016-12-04T10:22:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-50/segments/1480698541317.69/warc/CC-MAIN-20161202170901-00386-ip-10-31-129-80.ec2.internal.warc.gz","language_score":0.9263991713523865,"token_count":134,"dump":"CC-MAIN-2016-50","global_id":"webtext-fineweb__CC-MAIN-2016-50__0__57618230","lang":"en","text":"4.a.18. Is the fitting of a lens supplied by an optical laboratory to an optometrist subject to GST?\nNon-interpretative – other references see:\nGenerally, no. On our understanding, the fitting of a lens to a frame is normally part of the Quality Assurance process relating to the supply of the lens. As the fitting of a lens to a frame is not normally separately charged for, there is no consideration for the supply, and as such, the fitting service will not be subject to GST.\nHowever, where there is a separate supply of a service of fitting lenses to spectacle frames, it will be subject to GST.","domain":"optical_engineering"}
{"url":"http://www.clahrc-nwc.nihr.ac.uk/news/article.php?title=An+end+to+daily+finger+pricking+for+people+with+diabetes","date":"2020-09-29T13:04:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401643509.96/warc/CC-MAIN-20200929123413-20200929153413-00602.warc.gz","language_score":0.9449344873428345,"token_count":178,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__263295300","lang":"en","text":"An end to daily finger pricking for people with diabetes\nA new laser sensor that monitors blood glucose levels without penetrating the skin could transform the lives of millions of people living with diabetes.\nCurrently, many people with diabetes need to measure their blood glucose levels by pricking their fingers, squeezing drops of blood onto test strips, and processing the results with portable glucometers. The process can be uncomfortable, messy and often has to be repeated several times every day.\nThe new technology, developed by Professor Gin Jose and a team in the Faculty of Engineering at the University of Leeds, uses a small device with low-powered lasers to measure blood glucose levels without penetrating the skin. It could give people a simpler, pain-free alternative to finger pricking.\nYou can read more about the technology on the University of Leeds' website.\nMore articles Posted on: 15 July 2015","domain":"optical_engineering"}
{"url":"https://laserbuild.blogspot.com/2012/06/white-medicolor.html","date":"2018-09-20T01:39:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156314.26/warc/CC-MAIN-20180919235858-20180920015858-00205.warc.gz","language_score":0.9383914470672607,"token_count":224,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__41031096","lang":"en","text":"White is a color, the perception of which is evoked by light that stimulates all three types of color sensitive cone cells in the human eye in nearly equal amounts and with high brightness compared to the surroundings. A white visual stimulation will be void of hue and grayness.\nWhite light can be generated in many ways. The sun is such a source, electric incandescence is another. Modern light sources are fluorescent lamps and light-emitting diodes. An object whose surface reflects back most of the light it receives and does not alter its color will appear white, unless it has very high specular reflection.\nSince white is the extreme end of the visual spectrum (in terms of both hue and shade), and since white objects - such as clouds, snow and flowers - appear often in nature, it has frequent symbolism. Human culture has many references to white, often related to purity and cleanness, whilst the high contrast between white and black is often used to represent opposite extremes.\nVeja + sobre projecto aqui: (http://fernandoguerra.com/ava/)","domain":"optical_engineering"}
{"url":"http://weeklyphototips.blogspot.com/2013/03/canon-announces-new-gear.html","date":"2017-04-27T16:51:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122619.60/warc/CC-MAIN-20170423031202-00343-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.819426417350769,"token_count":782,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__137753707","lang":"en","text":"Just a few hours ago Canon announce the addition of some new gear to their lineup and we are lucky enough to be able to share their announcement with you. Follow the links below for ALL of the technical data and pricing info.\nCanon EOS T5i,\nbody only, with the\nnew 18-55 lens, or the\n* 18.0 Megapixel CMOS (APS-C) sensor, 14-bit A/D\nconversion, ISO 100-12800 (expandable to H: 25600) for shooting EOS-a Body from\nbright to dim light and high performance DIGIC 5 Image Processor for exceptional\nimage quality and speed.\n* High speed continuous shooting up to 5.0 fps\nallows you to capture all the action.\n* 9-point all cross-type AF system\n(including a high-precision dual-cross f/2.8 center point) for exceptional\nautofocus performance when shooting with the viewfinder and Hybrid CMOS AF\nincreases autofocus speed when shooting photos and movies in Live View.\nEOS Full HD Movie mode with Movie Servo AF for continuous focus tracking of\nmoving subjects, manual exposure Interface Cable control and multiple frame\nrates (1080: 30p (29.97) / 24p (23.976) / 25p, 720: 60p (59.94) / 50p, 480: 30p\n25p), built-in stereo mic, manual audio level adjustment, and Video Snapshot\nwith editing for flexible options.\nCanon Eos Rebel SL1,\nonly or with the\n18-55 lens listed below\n* Compact and lightweight DSLR featuring a\nnewly-developed 18.0 Megapixel CMOS (APS-C) sensor, ISO 100–12800 (expandable to\nH: 25600) for stills and ISO–6400 (expandable to H: 12800) for videos for\nshooting from bright to dim light, and high performance DIGIC 5 Image Processor\nfor exceptional image quality and speed.\n* High speed continuous shooting\nup to 4.0 fps allows you to capture all the action.\nCanon EF-S 18-55mm f/3.5-5.6 IS II Auto Focus Lens\nmagnification, compact and lightweight EF-S standard zoom lens with Optical\nImage Stabilizer for up to four equivalent stops of shake correction.\nSupports Canon EOS Movie Servo AF feature for smooth and quiet continuous AF\nduring movie shooting by utilizing a new six-group zoom system plus a stepping\nmotor and focus mechanism.\n* One UD lens and one high-precision aspheric\nlens reduce chromatic aberration throughout the zoom range for excellent image\nquality with high resolution and contrast.\n* Dynamic IS (Movie Shooting\nMode only) delivers a wider image stabilization correction range, ideal for\nshooting while walking.\nCanon PowerShot SX280 Digital Camera available in\n* Built-in Wi-Fi technology allows you to wirelessly transfer\nyour images to social networking sites through Canon iMAGE GATEWAY#; to a PC or\nupload virtually anywhere on your iOS or Android device with the free download\nof the Canon Camera Window app.\n* Canon's powerful 20x Optical Zoom and\n25mm Wide-Angle lens with Optical Image Stabilizer delivers stunning images from\nup close or at a distance.\n* 12.1 Megapixel High-Sensitivity CMOS sensor\ncombined with the new DIGIC 6 Image Processor creates the Canon HS SYSTEM for\nlight performance up to ISO 6400 and enhanced image quality.\n* Capture 1080p/60p Full HD video for high-quality capture of moving","domain":"optical_engineering"}
{"url":"https://light-guides.com/control-panels/","date":"2024-02-27T13:56:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474676.26/warc/CC-MAIN-20240227121318-20240227151318-00730.warc.gz","language_score":0.8314981460571289,"token_count":522,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__62208844","lang":"en","text":"Applications: Control Panels\nNano-Imprinted Thin Films create unique LED Backlighting for the full range of Electronics applications.\nNano-Imprinted Thin Films create unique LED Backlighting for the full range of Electronics Equipment applications.\nHigh Resolution patterns\nMicro-Lenses are Nano-Imprinted onto Thin, Flexible Translucent Substrates.\nNano-structured Light Control\nUniquely allows for sophisticated control of light distribution only to keys or buttons dramatically increasing efficiency and brightness.\nRoll to Roll, High Efficiency Production\nProvides Very Low Cost, High Quality and High Repeatability Lighting solutions.\nLight Guides: How they work.\nThe Light Guides are designed for effective use of LED edge light sources. Light from the LED sources is reflected down the length of Light Guide to the various viewing areas. The Micro-Lens Arrays redirect light out of the film to the viewer only where it is needed (to each logo, image, key or button) by the lens layout design. This new technology patterning allows light to be efficiently and uniformly directed where light is desired in a very low profile film.\nLight Guide Benefits\n- Very efficient use of light only to areas to be illuminated. Patterns of MicroLense areas designed by Customer software such as CAD or other standard design software.\n- More Efficient use (and reduced numbers) of LED sources\n- Very Thin Form Factor.\n- Roll to Roll Film Manufacturing for Low Cost\n- Software Designed Patterns for Precise Light Control.\n- Die cut to your specification shape requirements.\nLight guide films are designed using customer CAD or other software to determine the size, pattern and layout of the microlens arrays. This input is combined with our special design software to create the Micro-Lens array that is imprinted onto the Light Guide.\n|Optical Grade Materials\n|Polycarbonate, Acrylic (PMMA)\n|Ultra Slim Profile\n|0.40 mm to 0.8 mm\n|Standard…..Inquire for larger\n|2mm (1″) to 300mm x 400mm (11.8″ x 15.7 “)\n|Various design added options\n|LEDs, Flex Circuits, Cover Plates, Protective Films, Coatings, and Adhesives\n|High Resolution Nano imprinting\n|Less than 50 micron diameter lens structures are not visible.\n|Control button, Keypads Logos,\nand Decor Lighting.\n|Control Panels of all Types including portables. High quality Logo Lighting.","domain":"optical_engineering"}
{"url":"https://www.ntoaeye.com/premium-services.html","date":"2023-12-07T23:57:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100705.19/warc/CC-MAIN-20231207221604-20231208011604-00591.warc.gz","language_score":0.9178334474563599,"token_count":694,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__187113347","lang":"en","text":"Astigmatism is when the surface of the eye - the cornea - has a more oval than round shape. With uncorrected astigmatism, your vision may still be blurry after standard cataract surgery.\nBetween limbal relaxing incisions and toric lenses, your surgeon can eliminate most and sometimes all of your astigmatism at the time of cataract surgery.\nEliminating astigmatism improves your vision without glasses at all distances.\nPresbyopia is the eye's inability to focus up close, typically requiring the use of reading glasses or bifocals.\nMost adults above the age of 40 have some level of presbyopia.\nFor patients interested in becoming less dependent on glasses, your cataract surgeon can implant a presbyopia-correcting lens inside your eye at the time of cataract surgery that will allow you to see well at far, intermediate, and even some near distances.\nThese same lenses correct both presbyopia AND astigmatism, and most people who choose this type of lens enjoy substantially less dependence on glasses.\nWe are proud to offer both multifocal and extended-depth-of-focus (EDOF) implants. Your surgeon will discuss the pros and cons of each at time of your cataract evaluation.\nThe Zepto (R) Precision-Pulse Capsulotomy system is one of the most recent advances in cataract surgery.\nA capsulotomy is one of the first steps in cataract surgery. It allows your surgeon access to the cataract to remove it from your eye.\nA well-done capsulotomy helps keep your new lens centered, providing you with the best vision possible.\nThe Zepto (R) Precision-Pulse Capsulotomy system creates a capsulotomy that is 2-4x stronger than a capsulotomy done using a femtosecond laser and is only a fraction of the cost.\nUsing a special lens material designed by a Nobel Prize winning scientist, RxSight has developed the first intraocular lens (IOL) that allows you and your physician to optimize your vision following cataract surgery.\nDespite numerous advances in modern cataract surgery technologies, only 6 out of 10 cataract patients achieve their targeted vision, and an even smaller percentage achieve excellent vision at all distances.¹ This is because it is very difficult to predict how your eye will heal before your cataract surgery.\nWith the Light Adjustable Lens, you can now customize your vision after your cataract surgery. You will have the unique ability to adjust and preview your vision based on your personal desires and lifestyle requirements. This optimization is done by your eye doctor after lens implantation through a series of office-based light treatment procedures that take only a few minutes each.\nThe Light Adjustable Lens delivers superior visual outcomes that non-adjustable IOLs cannot match.² In a study of 600 subjects, those who received the Light Adjustable Lens followed by adjustments were twice as likely to achieve 20/20 distance vision at 6 months without glasses as those who received a standard monofocal IOL.\n1. Market Scope 2020 IOL Market Report: A Global Analysis for 2019 to 2025.\n2. US Food and Drug Administration. Summary of Safety and Effectiveness (SSED) of Light Adjustable Lens and Light Delivery Device system.","domain":"optical_engineering"}
{"url":"https://www.odmdsafety.com/product-page/fog-stopper-for-glasses","date":"2022-05-24T10:00:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662570051.62/warc/CC-MAIN-20220524075341-20220524105341-00122.warc.gz","language_score":0.7471407055854797,"token_count":130,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__272065266","lang":"en","text":"Fog Stopper for Glasses\nDESIGNED SPECIFICALLY FOR ANTI-REFLECTIVE COATED LENSES:\nUltraVue® Premium AR Anti-Fog Stopper™ provides users an easy to use anti-fog treatment for all plastic and glass lenses.\nApply 1-2 drops on the inside of the lenses, gently spreading with a soft lens cloth. Allow treatment to air dry for 15-20 seconds. Once dry, wipe and polish the lens with a dry soft lens cloth.\n10mL drip cap bottle\nMADE IN THE USA","domain":"optical_engineering"}
{"url":"http://shop.lightwerkz.net/HID-Projectors","date":"2014-10-01T14:13:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-41/segments/1412037663460.43/warc/CC-MAIN-20140930004103-00379-ip-10-234-18-248.ec2.internal.warc.gz","language_score":0.9275480508804321,"token_count":240,"dump":"CC-MAIN-2014-41","global_id":"webtext-fineweb__CC-MAIN-2014-41__0__109543958","lang":"en","text":"LightWerkz offers a variety of high performance OEM and Aftermarket HID projector Systems.\nProjectors are the single most important component in the performance you receive out of your HID projector conversion. There are many different options, but rest assured anything you see in our offerings is a great choice.\nWe have narrowed our options down to these projectors below. You will notice we offer both aftermarket and OEM projectors, depending on your budget. We offer single xenon projectors and bixenon (both low and high beam function projector) to suit your specific needs.\nAll projectors are tweaked and modified for maximum performance if you have chosen LightWerkz as your HID projector conversion service provider.\nWe like to give projector suggestions depending on your application type, however it is important for you to make an educated decision on which projector system you would like to use.\nThe following links provide comparison photos of just about any projector worth talking about! We would like to thank JVX from HIDPlanet for taking these comparison photos that help our customers decide what the best choice is.\nSingle Xenon projector output comparison\nBixenon projector output comparison","domain":"optical_engineering"}
{"url":"https://nuhsbaum.com/megapixel-meltdown-canons-250-megapixel-sensor/","date":"2023-12-07T20:41:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00898.warc.gz","language_score":0.9187073707580566,"token_count":982,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__30185011","lang":"en","text":"Megapixel Meltdown: Cannon announces the release of a 250 megapixel sensor\nWith the recent release of a 250 megapixel sensor, the world of microscopy will never be the same. Or will it? Although microscope users will continue to demand higher resolution cameras it is not the primary factor for comparison.\nFor years consumer electronics have lead the way in educating people in the standards for how to evaluate a camera. The most common standard – megapixels. Consumer camera manufacturers make little to no mention of the lens, resolving power, sensor noise, dynamic range, sensitivity or anything that actually influences quality images. So when Canon releases a 250 megapixel sensor, consumers immediately assume more is better – and that sensor should be connected to the microscope!\nAlthough the 250 megapixel sensor will allow an investigator to make a high resolution print the size of a small house, it will not allow said investigator to learn more about the sample in the image.\nResolving power of optical system influences the need for sensor resolution\nAlthough camera sensors are amazing at capturing the detail in an image provided by a series of lenses, the series of lenses dictate the resolving power of the system. In short, unless the optical system is capable of resolving to the level of the camera pixel, the camera’s pixels are wasted. There could be more than one pixel capturing the same exact feature on the sample, providing your image a lot of pixels, but not a lot of data.\nThankfully smart people who know numbers have worked out the details of digital sensors in microscopy. Some important equations are below:\nOptical Resolution (um) = (0.61 * wavelength)/(NA)\nObject size (um) = (Optical Resolution * Objective Magnification (i.e. 63X)/(c-Mount Adaptor)\nNyquist Sampling Frequency: Object size/2.3 = Pixel Size to Resolve Object (um)\nAlternatively, if one would simply prefer plug numbers into a calculator, there is a web based calculator available also. Or for more information, Photometrics has an excellent learning zone dedicated to matching resolution.\nIn the case of the Canon sensor, the pixels are about 1.49 microns across, so in the case of a compound microscope with a 10X objective lens with a numerical aperture of 0.4 and a lens free 1X c-mount, the ideal pixel size would be 3.646 microns. Or in the case of a stereo microscope with a 1X objective lens ideal pixel size would be about 3.5 microns.\nAt 1.49 microns, the 250 megapixel sensor is at least 2X over sampling at low magnification and 8X over sampling at high magnification. Furthermore, this behemoth sensor is so big (29.2 x 20.2 mm) that it would require a magnifying intermediate lens to avoid vignetting – making the pixel size over sampling problem worse.\nMicroscopes are made for imaging molecules, not mountains\nNothing is more awesome than one upping a friend as it relates to Megapixels. If this were not true, Apple would not have released an iPhone with 4K streaming and a 12 megapixel sensor. Nothing like megapixels to make someone feel like their phone is obsolete…\nFrom the calculations above it’s clear that there is a limit to the value of megapixels as it relates to resolution. In the case of the 250 megapixel sensor, the developers never intended for the sensor to go onto a microscope, since they cite the sensors ability to read a serial number off an airplane from 11 miles away. Ideally Canon’s 250 megapixel sensor would be used for telescopes, not microscopes.\nWhen considering the specialized optics of light microscopes there are practical limits to resolution. Cameras that go beyond the three micron pixel size limit are simply offering users bragging rights, because there is not benefit to additional data.\nReal factors to consider when evaluating a camera\nWhile megapixels are a simple number to digest and compare across many different products, there are other factors to consider:\n- Quantum Efficiency\n- Read noise\n- Signal to noise ratio\n- Full well capacity\n- Dark current\n- Pixel size\n- Sensor size\nAll of these factors contribute to what many people will consider to be a beautiful image. Inky blacks with vibrant whites all while providing the field of view and resolution that is enough to record data.\nTrust W. Nuhsbaum, Inc.\nChoosing a camera can be intimidating, but the process can be made easy by consulting with the team of microscope and imaging specialists from W. Nuhsbaum, Inc. Trust the experience of W. Nuhsbuam, Inc to weather the technology winds of change and advise on the proper technology for your experiments.","domain":"optical_engineering"}
{"url":"https://drishtieyecare.info/implantable-contact-lens","date":"2023-12-05T10:59:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00299.warc.gz","language_score":0.8783652782440186,"token_count":371,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__241923297","lang":"en","text":"Our Great Performance\nYou will be surprised to see your old reports, Which help us to treat your best.\nImplantable Contact Lens (ICL) are now the lastest technological advances to reduce the patient with refractive error and seen high powers which are not even amenable with conventional LASIK LASER surgery. The implantable contact lens is a type of phakic intraocular lens (PIOL) used in the correction of eyes with high refractive errors, especially if the cornea is thin. PIOL are artificial lenses which are implanted in front of the natural lens of the eye and functions as a \"contact lens within the eye affording high quality (high definition) vision. PIOLs are especially useful in certain patients who are not suitable for which laser refractive surgery like LASIK. At Drishti Center for Advanced Eye Care, Haldwani, the Visian Implantable Collamer Lens (ICL; Staar® Surgical Company, USA) is available for patients who require phakic intraocular lens implantation.\nThe Visian Implantable Collamer Lens (ICL; Staar® Surgical Company, USA) is a one-piece foldable phakic intraocular lens which is implanted just in front of the natural crystalline lens as a day surgery procedure. This PIOL requires a sutureless sub-3 mm corneal incision for insertion allowing fast visual rehabilitation and eliminating the need for hospital admissions.\nThe Visian ICL is able to correct myopia of -3.0 D to -20.0 D (US approval). Toric models of this PIOL are also available. Toric models are able to correct both myopia and astigmatism simultaneously, eliminating the need for subsequent procedures to correct astigmatism.","domain":"optical_engineering"}
{"url":"http://hwalloneoptical.com/page/html/index.php","date":"2024-04-20T06:44:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817491.77/warc/CC-MAIN-20240420060257-20240420090257-00067.warc.gz","language_score":0.9529616236686707,"token_count":231,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__186047151","lang":"en","text":"When you love what you do, you tend to do it better than anyone else. Every lens we make is a combination of passion, technology and common sense. We don’t just make lenses that work better on paper. We make lenses that work better on people. A company of real people making lenses for real people. Isn’t that the way your lens company should work?\nFounded in 1998, Located in China, HWALLONE has become a recognized leading manufacturer of quality ophthalmic lenses through its superior technological ingenuity. The sole objective of our lens is to develop and manufacture products that are both innovative and unmatched in quality.\nHwallone also has a large lab which can supply 24-48 hours fast, high quality and realiable RX prscription lens service by strictly quality control following CE, ISO and FDA standard.\nHWALLONE is dedicated to establishing and maintaining strong partnerships with eye care professionals, retailers, wholesalers, and distributors. No matter the size, location, or affiliation, we will work to provide the best quality products and help grow our customers’ businesses.","domain":"optical_engineering"}
{"url":"https://www.castlegroup.co.uk/guidance/light-measurements/photometry-and-light-measurement/","date":"2021-01-22T21:40:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703531429.49/warc/CC-MAIN-20210122210653-20210123000653-00109.warc.gz","language_score":0.9264436960220337,"token_count":497,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__272140464","lang":"en","text":"Home > Safety & Environmental Help and Guidance > Light Measurements > Photometry and Light Measurement\nPhotometry (measuring light levels) is the science of measurement of visible light in terms of its perceived brightness to human vision.\nLight can be measured in several ways. Two of the most frequently used methods used in industry include Lux and foot-candles. Lux (lux) is a unit of illumination of one square meter which is one meter away from a uniform light source. One lux is equal to one lumen per square meter.\nAn employer has a duty to ensure the health and safety of their employees, which is covered under the health and safety at work act 1974. This act describes a duty to provide lighting that enables work to be carried out safely without putting employees health or eyes at risk.\nRegulation 8 of workplace regulations 1992 says that:\nThe amount of light needed depends on what type of work is being carried out. (see table below)\nInterior levels are much lower than outdoor natural light.\nSome typical light levels are:\nLight Measurement Meters\nThe two main instruments for measuring light are photometers and spectrometers,\nA photometer is any instrument that can be used to measure illuminance or irradiance. These meters are often applied in industry as ‘photometer’ is a general term for “detecting instruments”. Most photometers work by using either photo resistors or photodiodes. These work by showing a change in electrical properties when exposed to light which is easily detected using a suitable electronic current.\nA spectrometer is an optical instrument which is used to measure the properties of light over a specific proportion of its electromagnetic spectrum. Spectrometers use light intensity as the variable measurement and wavelength as the independent variable measurement. Spectrometer is often a term that is applied to instruments that work over a wide range of wavelength from X-rays, gamma rays & far infrared.\nCLICK HERE FOR Information, technical data, images and pricing of all Castle Group Ltd. products\nCLICK HERE FOR Hire the best equipment at a fraction of the purchase price\nCLICK HERE FOR Calibration and repair services from Air Samplers to Vibration Meters\nCLICK HERE FOR World class safety and environmental courses. On your site or our 4* training facility\nCLICK HERE FOR Employ our expertise for both simple and more demanding issues.","domain":"optical_engineering"}
{"url":"https://www.magic-film.com/project/dichroic-film-dichroic-glass/","date":"2024-04-15T15:05:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817002.2/warc/CC-MAIN-20240415142720-20240415172720-00823.warc.gz","language_score":0.9010543823242188,"token_count":780,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__106869475","lang":"en","text":"DICHROIC FILM Dichroic glass\nThis effect is incorporated in films by using a simple yet unique process called micro-layer technology. The reflection of visible light creates a separation of prismatic colors and by the fluctuation of sunlight or simple light obstruction when people or objects block light. While specific prismatic color patterns are created by the light transported through the window, throughout the day inside buildings.\nThe Dynamic Effect makes the color relocate when viewed from different angles. This happens with the use of Multi-layer optical film technology. The colors in transmission and the reflected colors are always different.\nApplications – Can be applied to glass partition walls, shower door glass, shading fins, balustrades, exterior glass, artistic glass, and glass furniture.\nThe film offers maximum flexibility, you can cut it, bend it, pattern it or apply it with different glass types of interlayer adhesives.\nPrinter took a galley of type and scrambled it to make type specimen book has survived not only five centuries.\nDichroic glass is a kind of glass whose color can be changed according to the top angle of direct sunlight and the angle of the observer’s position.\nThe color effect of Dichroic glass is produced in the process of processing metal film coating.\nDichroic glass : Dichroic glass is a decorative coated glass product, and the off-line coating technology is adopted. By plating multi-layer metal and oxide films and applying the principle of optical interference, the colorful effect of various colors will appear with the change of viewing angle, which can meet the design requirements of the designer and achieve the purpose of decoration effect.\nFeatures of Dichroic glass:\n1. Color change can be generated according to different viewing angle and sunlight conditions\n2. High scratch resistance, chemical resistance, easy to clean\n3. With artistic feeling and fashion aesthetic feeling, the finishing touch of home decoration, strong processing and toughening\nThe glittering and translucent, Dichroic glass is simple but not simple. It is not only the furniture spirit dancing light and shadow, but also the art of modern fashion. In modern home decoration, it is a very expressive space element.\n4.The low refraction metal oxide coating can produce vivid color changes according to different viewing angles and sunlight conditions. Based on its hardness, scratch resistance and high chemical resistance, Dichroic is more durable, easier to care and clean than traditional glass.\nDichroic glass advantages\n1)Dazzling effect – impressive color effect (yellow blue, green purple, orange blue, blue gold, green pink, etc.);\n2)Advanced processing technology, using off-line coating technology, can process large size, and processing size is flexible, to meet customer needs to the greatest extent;\n3)The color and hue of the coating surface and the glass surface are the same, and they have the same dazzling effect both indoors and outdoors;\n4)With Artistry – impressive dazzling color appearance, combined with architectural design, can make the building have a higher artistic appreciation.\n5)Stability: Dichroic glass has high hardness, scratch resistance and excellent chemical stability;\nDichroic glass is especially suitable for landmark buildings, such as office buildings, museums, opera houses, theatres, cinemas, shopping malls. Room partition, door, screen, and guardrail. Its effect is highly recognizable, so it can also be used in shops, restaurants, casinos and so on. It can meet the bold design requirements of architects, artists and designers, so as to convey their design ideas and artistic inspiration.\nThe maximum processing size is 2440 * 4600mm, and the maximum processing thickness is 19mm.","domain":"optical_engineering"}
{"url":"https://www.petcompanionmag.com/rex-specs/","date":"2023-09-28T02:48:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510334.9/warc/CC-MAIN-20230927235044-20230928025044-00548.warc.gz","language_score":0.8241356611251831,"token_count":126,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__28948300","lang":"en","text":"Rex Specs protect against dust and debris, UV rays, bugs and wind, or punctures from sticks and thorns.\n• Rex Specs dog goggles come with 2 lenses – 1 Clear and a second lens of your choice. Choose from 6 lens tints (Clear, Smoke, Blue Mirror, Silver Mirror, Red Revo, or Blue Revo)\n• All lenses are interchangeable, spherical, and rated UV400 to provide protection from UVA/UVB rays.\n• Lenses are rated ANSI Z87.1\n• Dynamic strap system enables full jaw movement","domain":"optical_engineering"}
{"url":"https://americanewsdaily.org/understanding-4/","date":"2023-01-27T10:55:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494976.72/warc/CC-MAIN-20230127101040-20230127131040-00517.warc.gz","language_score":0.9499021768569946,"token_count":493,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__41125625","lang":"en","text":"Factors to Consider When Hiring Fiber Optic Cable Installation Company in Austin\nIt is important to ensure that you have the right internet source for your usage needs. You can opt for one of the major internet suppliers in the market for your needs. The effectiveness of internet sources will vary when it comes to speed and stability. Increased demand for stable and reliable internet supply has made fiber optic a choice for many people. It is important to ensure that you have a professional to handle your fiber optic cable installation needs. You will have choices when it comes to choosing a company to provide fiber optic cable installation services. To ensure that you get the best services for your fiber optic installation needs it would be key to ensure that you find the best company for the services. You will have varying experiences while engaging with different fiber optic cable installation service providers which makes it crucial to find the best option for your needs. From the article below you are going to find useful factors to help in the selection of fiber optic cable installation firm.\nThe first thing you should consider for a fiber optic cable installation company is their experience in providing the services. Ensure that you get a firm which has good knowledge about the solutions from their previous working experiences. You will need to ensure that you get a firm which has the skills to provide custom fiber optic can installation services.\nIt is important to ensure that you deal with a company which you can access any time for your fiber optic installation needs. You should opt for a firm which would ensure that you get ideal support when needed. Having easy access to effective support services when using your fiber optic cable is crucial. A supportive fiber optic service provider will ensure that you have an easy time dealing with any levels of trouble with your cable.\nIt is important to ensure that you consider fiber optic cable installation service provider who is affordable based on your budget. It is important to ensure that you know what is covered by the set charges for fiber optic cable installation services. You should get a fiber optic cable installation firm which will give assurance for their installation solutions. When it comes to selecting a fiber optic cable installation service provider ensure that their payment options are ideal for your budget.\nIn conclusion, you should find a licensed fiber optic cable installation service provider who has the right credentials for providing such services. Choose a company which has the necessary credentials to offer fiber solutions in your area. An accredited fiber optic services provider will give he best experience for your fiber cable installation needs.","domain":"optical_engineering"}
{"url":"https://www.raymondlaser.com/about-us/","date":"2021-10-25T14:49:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587711.69/warc/CC-MAIN-20211025123123-20211025153123-00149.warc.gz","language_score":0.9124141931533813,"token_count":246,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__150928552","lang":"en","text":"About RAYMOND Laser\nRaymond Laser is a full laser machine manufacturer, with nearly 13 years of experience as an industry pioneer. With a deep investment in our own proprietary laser machine designs, we are able to find the best solutions for your particular application.We offer end-to-end design, manufacturing, and service capabilities, proudly housed in Wuhan China.As true laser experts with multiple laser technologies, we don't have a one size fits all approach. Instead, our experienced engineers, technicians, and staff carefully analyze our customer's needs and applications and find the best solution-often utilizing custom designs and engineering.At Raymond Laser, we keep feature-loaded standard systems and workstations in stock to ensure quick delivery for off-the-shelf options. We also have the in-house expertise to engineer custom laser solutions.\nRaymond Quality Policy:\n• Quality all kind of laser machines.\n• We offer two year warranty for all machines.\n• Professional customer support and after sales service.\nWe are proud of the clients we have served\nBelow is a list of few of our satisfied partners\nOver 13 years' laser experience\nRequest A Quick Quote\nOn our Laser Machinery","domain":"optical_engineering"}
{"url":"https://www.zonegemma.org/british-french-submarine-cable-preparation/","date":"2023-11-28T12:37:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099514.72/warc/CC-MAIN-20231128115347-20231128145347-00091.warc.gz","language_score":0.9160279035568237,"token_count":289,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__24912984","lang":"en","text":"Crosslake Fiber, a developer and operator of communications networks in North America and Western Europe, revealed its latest submarine cable project, called CrossChannel Fibre, which is a submarine cable system connecting Slough, United Kingdom and Paris, France, with a total length of approximately 550 kilometers.\nAccording to the plan, the system will contain 96 pairs of optical fibers, each pair of optical fibers provides more than 20Tbps of capacity. To support the project, Crosslake Fiber has authorized EGS, the world’s leading ocean survey and service provider, to conduct project maritime surveys.\nIn addition, Tiger Infrastructure Partners, the capital partner of Crosslake Fibre, has invested additional capital in the Crosslake platform to support the CrossChannel Fiber system.\nMike Cunningham, CEO of Crosslake Fibre, said, “We are very pleased to launch this historic submarine project and provide a new connection in the crucial data center connecting Slough in the English Channel with Paris. This new The optical fiber infrastructure has been optimized to establish the shortest path between the two data, providing users with enhanced technical solutions and greatly reducing operating costs. With the COVID-19 pandemic, the continuous increase in bandwidth demand has continued to increase The submarine cable has never been so important to the function of the Internet backbone.”\nAccording to the plan, the submarine cable system will be put into use in the fall of 2021 (RFS).","domain":"optical_engineering"}
{"url":"https://mininewshub.com/2019/03/29/huawei-rewrites-the-rules-of-photography-with-groundbreaking-huawei-p30-series/","date":"2024-04-14T02:17:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816863.40/warc/CC-MAIN-20240414002233-20240414032233-00530.warc.gz","language_score":0.826515257358551,"token_count":754,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__53699969","lang":"en","text":"During an exclusive launch event today at the Paris Convention Center, Huawei Consumer Business Group (BG) unveiled the HUAWEI P30 and HUAWEI P30 Pro.\nThe HUAWEI P30 Series builds on the HUAWEI P Series DNA in design and photography and is the company’s most advanced series of smartphone cameras. These devices feature the innovative HUAWEI SuperSpectrum Sensor, an optical SuperZoom Lens, a new HUAWEI Time of Flight (ToF) Camera, and enhanced optical and AI image stabilization technology.\nWith these revolutionary technologies, the HUAWEI P30 and HUAWEI P30 Pro capture incredible photos and videos in every scenario.\nRichard Yu, CEO of Huawei Consumer BG, said,\n“the HUAWEI P30 Series is a fundamental breakthrough after decades of digital camera technology development; it will rewrite the rules and reshape everyone’s perception of mobile photography. Innovations such as the HUAWEI SuperSpectrum Sensor and SuperZoom Lens allow us to push the envelope of both photography and videography—a frontier long overdue for disruption. The HUAWEI P30 Series will set the pace for the next generation of smartphones by empowering people to capture the true beauty of the world around them through a device that fits in the palm of their hands.”\nThe HUAWEI P30 Series will change users’ expectations of smartphone photography. The HUAWEI P30 Pro is equipped with a new Leica Quad Camera System, including a 40MP main camera with the HUAWEI SuperSpectrum Sensor, a 20MP ultra-wide angle camera, an 8MP telephoto camera, the HUAWEI ToF Camera and a 32MP front camera that takes selfies to a new level.\nThe 1/1.7-inch HUAWEI SuperSpectrum Sensor looks at light in a fundamentally new way. The RYYB HUAWEI SuperSpectrum Sensor deviates from the traditional RGGB Bayer filter by replacing green pixels with yellow pixels, yielding a high maximum ISO rating of409,600 on the HUAWEI P30 Pro and 204,800 on the HUAWEI P30.\nThis fundamental shift in sensor technology, combined with HUAWEI AIS, OIS and the HUAWEI P30 Pro’s f/1.6 wide aperture, delivers extraordinary photography and videography experiences across a wide range of scenarios and lighting conditions—including extreme low light—producing images with enhanced detail, color and clarity.\nThe new SuperZoom Lens unlocks a superior level of zoom photography in a slim-line device design. Through a new periscope design, the SuperZoom Lens supports high fidelity magnification of 5 times optical zoom, 10 times hybrid zoom and 50 times digital zoom. A prism element in the telephoto camera bends light at a 90-degree angle to maximize focal length while minimizing camera height, without disrupting device design.\nThe HUAWEI P30 Series is a smartphone camera with cinematic capabilities. The HUAWEI P30 Series ushers in a new era of studio-grade videography. The HUAWEI SuperSpectrum Sensor enables spectacular low-light video capture so nightscenes appear bright and highly detailed.\nHUAWEI AIS and OIS support stabilization for all video capture settings, resulting in a perfect, steady shot. Additionally, the SuperZoom Lens allows for crisp close-ups, while the AI Video Editor enables users to add background music and special effects to their videos, turning the HUAWEI P30 Series into a mobile production studio.","domain":"optical_engineering"}
{"url":"https://telescopeobserver.com/celestron-regal-m2-spotting-scope-review/","date":"2024-04-12T10:46:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00883.warc.gz","language_score":0.9393612742424011,"token_count":902,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__141222601","lang":"en","text":"Celestron’s line of M2 spotting scopes offer consumers a way to enjoy higher-end optics from the company without paying exorbitant prices. The Regal 100ED brings all of the features of the other M2 scopes to the table but adds a lens diameter that offers greater light gathering abilities than either the 65 or 80mm versions. As a result, it provides some of the clearest images of birds, targets, and even limited astronomy viewings possible through this line while providing the level of quality construction and affordability that you would expect from Celestron.\nThe Celestron Regal 100ED possesses specs that in many ways match those of the other members of the M2 line. These features offer a look into what makes this line of spotting scopes such a desirable and well-reviewed set of scopes. At the same time, it offers a larger lens and better field of view that promises even better images for serious nature hobbyists to enjoy. Following are a few of its most important features:\n• Diameter of objective lens: 100mm\n• Optical coatings: Fully multi-coated\n• Dimensions: 19.2in. X 4.8in. X 4.8in.\n• Weight: 8.6 lb.\n• Eye relief: 20mm\n• Magnification: 22x-67x\n• Angular field of view: 1.9-.9°\n• Close focus: 26.2ft./8m\nCelestron Regal M2 Spotting Scope Review\nOne of the most unique and useful features of each of the scopes in Celestron’s M2 line is the ED glass that the company uses in the objective lens. This glass, which stands for “extra low dispersion glass,” functions by limiting the extent to which light is scattered as it passes through the lens. The result is that the light remains focused, improving the sharpness and clarity of the images and cutting down on color distortion. The improved accuracy of the view lends itself to high-accuracy activities such as target shooting and bird watching. While ED glass is often available in more expensive scopes, its presence in the more affordable Celestron M2 scopes adds significant value and allows these scopes to produce images that mimic those provided by pricier viewing instruments.\nThe ED glass in the Celestron Regal 100ED stands up under actual usage by reviewers. They report that the images the scope provides exceed their expectations for a scope as inexpensive as the Celestron Regal is. They even report enjoying accurate views at up to several hundred yards. Even target shooters, whose hobby requires superior viewing abilities, report being satisfied by the Regal’s performance.\nIn addition to ED glass, the Regal 100ED’s optical abilities are enhanced by the use of full multi-coated optics. This term refers to the fact that all of the lenses in the spotting scope have been coated with several layers of substances that sharpen and focus the light as it passes through the lens. The result is that these coatings further cut down on distortion in the resulting images and contribute to their overall excellence.\nIn addition to strong optical performance, the Celestron Regal 100ED is defined by comfort and ease of use. Reviewers find that the scope cuts down on eye strain and allows them to enjoy their viewing adventures for long periods of time without discomfort. Part of the reason for this comfort is the 20mm eye relief, as well as the fact that the eyepiece is adjustable and the eyecup is comfortable once adjusted to the viewer’s satisfaction. In addition, the Regal 100ED comes with a tripod mount that offers versatility and choice in how the scope is mounted. The mount, which receives praise from reviewers, allows the scope to be attached to the tripod in any one of four ways in order to allow the viewer to choose the most comfortable and practical arrangement possible for their viewing session.\nFinally, reviewers note that the Regal 100ED is sturdily constructed. Its magnesium alloy body allows for a lighter feel without compromising its strength. A limited lifetime warranty ensures that consumers can purchase the scope with the confidence that any issues they encounter will be speedily resolved. The result is a strong, high performing scope that will appeal to consumers who want to enjoy nature views, bird watching, target shooting, and other spotting activities on a budget.","domain":"optical_engineering"}
{"url":"https://www.laeyeworks.com/visioncare/ocean.html","date":"2023-10-03T07:19:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511055.59/warc/CC-MAIN-20231003060619-20231003090619-00414.warc.gz","language_score":0.9327481389045715,"token_count":145,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__70303680","lang":"en","text":"THE WINDOWS OF YOUR SOUL WERE DESIGNED IN THE OCEAN\nMillions of years ago in the salty seas, life-forms developed light-sensitive skin zones. Along with distinguishing between light and dark, these enlightened zones could also identify the direction of light sources. Because the life-forms thrived via light sensitivity (it helped them find food, stay warm, etc.), eyes improved upon their original design features. They evolved into complex vision instuments that could recognize movement, form, and eventually myriad markings and colors. As we humans are descended from sea creatures, it makes perfect sense that our eyes must be constantly lubricated by salt water in order to see.","domain":"optical_engineering"}
{"url":"http://ikelite.com/web_pages/dabigadoma.html","date":"2014-03-10T06:42:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-10/segments/1394010674226/warc/CC-MAIN-20140305091114-00090-ip-10-183-142-35.ec2.internal.warc.gz","language_score":0.8517099022865295,"token_count":937,"dump":"CC-MAIN-2014-10","global_id":"webtext-fineweb__CC-MAIN-2014-10__0__22611733","lang":"en","text":"Modular Port System for SLR and dSLR housings\nOur modular port system allows you to build a port out of universal components to accommodate a variety of macro, zoom, and wide-angle lenses. The interchangeable port bodies and extensions combine to create endless combinations for maximum versatility and performance.\n( Port Body Not Included )\nDue to refraction flat ports reduce the angle-of-coverage of a lens and at the same time enlarge the image, ideal for shooting small subjects with a standard, macro or zoom lens. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette at infinity when used behind a flat port.\nEffective August '09 the modular flat port now features a glass front element for maximum durability. Due to dimensional changes older flat assemblies cannot be retrofitted with a glass front element.\n( Port Body Not Included )\nThe injection molded acrylic 4\" radius dome is specifically designed for underwater photography to provide superior optical performance. Its larger radius reduces edge distortion on pictures taken with certain super wide-angle lenses and makes shooting over-under shots easier.\nA complete port requires a Dome or Flat Assembly and an appropriate Port Body. An Extension is not required, but may be used to extend the overall length of the port.\nAn appropriate Port Body is required to attach a Flat or Dome Assembly to the housing. Port Bodies are offered in a variety of lengths for use with different lenses. Please note that picture sharpness is very sensitive to port length when using a dome underwater, while the optics of a flat port underwater are very forgiving. We recommend selecting a port body based on your wide-angle or zoom lens.\nThe #5510.16 and #5510.22 are the most common Port Bodies for popular wide-angle lenses. Both accept port extensions to accommodate longer macro and zoom lenses.\nRefer to the appropriate Port Chart for compatibility.\n** This Port Body utilizes a bayonet style mount that\nrequires #9072.24 low-profile port locks (not included). These port locks come standard on all\nhousing models manufactured since March 2006 (serial number 15798 and above)\nand can be used with any Ikelite port. Low-profile\nport locks are not compatible with older Ikelite film SLR housings.\nPort Extensions can be added to any Port Body and Dome or Flat Assembly combination to extend the overall length of the port.\nExtension length is added to overall lens length accommodated by a given port combination.\nfor Nikon 105mm VR and Canon 100mm USM Macro Lenses\nA special extension is available for use with Nikon 105mm VR Macro and Canon 100mm USM Macro lenses. Manual focus is adjusted with a large, easy-to-turn knob on the side of the extension. Extension can be used with the Nikon 105mm VR Macro lens and either #5510.16 or #5510.22 Port Bodies. Canon 100mm USM lenses require the #5510.16 Port Body.\nThe Focus Extension can be used in place of the 1.75\" Standard Extension in most instances. The Focus Extension should NOT be used with the bayonet-style #5510.10 or #5510.11 Super-Wide Angle Port Bodies.\nNikon 105mm VR Macro Lens Users: Port Bodies produced before 4/15/08 require a free modification for use with the Nikon 105mm VR Macro lens.\nCanon 100mm USM Macro Lens Users: No modifications required.\nCanon 100mm \"L\" USM Macro w/Hybrid IS Users: Requires new focus knob spacer #0376.2 (MSRP $6). New spacer is included with all #5510.75 extensions produced as of December 1, 2009.\n#5510.45 Dome Assembly\n#5510.35 Flat Assembly\n#5510.75 Focus Extension\nHow to Measure:\nLens length is measured as the maximum extended length from attachment point on the camera body.\nMaximum lens diameter is limited to 8.4cm (3.3\"). Lenses up to 7.1cm (2.8\") allow attachment of the standard zoom and clamp set. Larger diameter lenses require the special #5509.28 zoom and clamp set, included with all Ikelite dSLR housings.\nIdentifying Un-Marked Port Bodies\nSee important information on\nPre- August '06 Depth Limits\nDetailed instructions for\nZoom Clamp & Sleeve Installation","domain":"optical_engineering"}
{"url":"http://heathscientific.net/p/535/digital_microscope","date":"2017-11-22T16:30:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806615.74/warc/CC-MAIN-20171122160645-20171122180645-00030.warc.gz","language_score":0.7799433469772339,"token_count":204,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__82658867","lang":"en","text":"The microscope can be used with the digital eyepiece connected to a computer via the USB port (windows compatible) or with the standard 10X Eyepiece (included). TS View software allows you to view live color images from the scope, save them, edit, add text, take video, even email. LED Light source now allows you to control the brightness of the light for the best image. Features 10X widefield eyepiece with pointer.\n4X, 10X, 40X achromatic objectives provide 40X-400X magnification\nDigital Eyepiece and software\nAutomatic light contrast and fine focus\n640 X 480 resolution\n30mm adapter makes eyepiece suitale for use with other scopes\nUSB port connection\nTS software compatible with Windows and Vista\nPrepared and Blank slides\nPacked in full color box (6 lbs)\nMicroscopes normally ship in 6-10 days. If the item is needed sooner, please contact to confirm immediate availability.","domain":"optical_engineering"}
{"url":"http://shcidly-com.sale.spintoband.com/pz6afb2de-cidly-ufo-90w-led-grow-lights.html","date":"2018-06-20T19:17:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863834.46/warc/CC-MAIN-20180620182802-20180620202802-00517.warc.gz","language_score":0.8063673973083496,"token_count":629,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__195491327","lang":"en","text":"Wide range voltage input 100-240V AC\nDouble cages structural heat dissipation design,better cooling\nThe double cages structural design change the heat dissipation mode\nof the traditional LED grow light, divide the inside of the lamp to\ntow parts, and form two heat-dissipation cages, cut off the\ninternal thermal cycle effectively and reach the best cooling\nUse the unique air-out design and open air exhaust in the two sides\nof the lamp, remove the high temperature air rapidly, ensure the\nlight body operation in a low-temperature environment.\nPrevent drippage water design:\nThe lid of the light is with sloping ends and 5°angled holes to\nprevent the light from the damaging of drippage and dust.\nHigh quality 3W LED+700mAcurrent=The top performance:\n700 mA is the best drive current for 3W LEDs,runing LEDs with\npossibly high current can take full advantage of LEDs, making your\ninitial investment in LED devices to be well worth it.However, LEDs\nand LED drivers should be of superior quality as so to undertake\nthe high electric current, besides the entire equipment should be\ngood enough in heat dissipating to bear all the heat emitted by 3w\nleds.Selects the finest LEDs and drivers to ensure the stable\nperformance as well as the long life span of the fixtures,our\nthree-year warranty policy proves our confidence in products.\nModularity design, each part interconnect by the male female plug\ndirectly, very easy for repairment and maintenance, only few steps\nto assemble up the whole fixture.\nCambered LED panel with 150°wide beam angle, more evenly in light\ndelivery and larger in lighting coverage.\nHigh hardness ABS, PC material housing offer an additional level of\nSuperior seismic performance: when bare light without any\nprotection, a 0.4M-height fallen to the ground would not cause any\nName: 90W LED Grow Light Actual power: 85~95W\nModel: CDL-G-UFO90W LED Qty: 48pcs*3W\nInput voltage: AC100~240V LED color: Red(630nm)/Blue(460nm)\nOutput voltage: DC55~70V Lifespan: 50,000 Hours\nInput current: 670~700mA Working frequency: 50~60Hz\nPF: 0.9 Working environment: -20~40℃,45%~95%RH\nProduct size: Ф260*136mm N.W.: 2.86kg\nInner carton size: 290*290*180mm G.W.(Inner carton ): 3.3kg\nOuter carton size: 590*300*370mm G.W.(Outer carton ): 14.05kg\nStandard configuration: LED Light x1,Power line x1,Chaining x2\nRemarks: The above parameter is based on Red:Blue=8:1, for","domain":"optical_engineering"}
{"url":"https://www.bnwbuilders.com/doors/entry-doors/provia-legacy-entry-doors/","date":"2019-07-22T05:27:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527531.84/warc/CC-MAIN-20190722051628-20190722073628-00188.warc.gz","language_score":0.8999707698822021,"token_count":621,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__142943808","lang":"en","text":"Measurably improve thermal performance with our ComforTech™ Warm Edge Glazing System. Every ComfortTech glass package features a NO-METAL spacer between the panes of glass and gas filled cavities that provide you with highly energy efficient glass and a warmer glass edge.\nThe NO-Metal Advantage\nBecause the spacer between our panes of glass is not metal, there is no loss of energy through conduction.\nMylar 10-Layer Vapor Barrier\nThe spacer used in our glass, Super Spacer®,is made from a thermoset foam matrix. Made with a 10-layer moisture barrer to keep moisture out, gas is kept in and conductivity is virtually nonexistent.\nWithstands Normal Bowing\nThe design of our Warm Edge Glazing System stands up to the bending and bowing that is natural in any glass unit.\nEnhanced Noise Reduction\nOur all-foam formula has excellent sound-dampening properties that reduce outside noise, even in industrial environments.\nWhat is Colar Heat Gain? (SHG)\nSHGC is a measurement of how much of the sun's heat is transmitted through the window or door. It is best described in terms of a ratio; where one is the maximum solar heat gain that comes through a window and zero is the minimum. A window that has a SHGC of .3 will allow 30 percent of the sun's heat to pass through.\nWhat is DWT?\nThe DWT (Damage Weighted Transmittance) measures fading risk for furnishings and other materials. DLA-UV is 43% better than clear glass and 23% better than DLA.\nDWT is calculated according to a function called Tdw-ISO, developed by the International Standards Organization and published by the International Commission on Illumination (CIE), the world's leading technical organization on light and illumination. The Tdw-ISO calculation measures fading risk from solar radiation across the entire solar light spectrum, from Ultra-Violet light through visible light. According to the CIE standard, which is considered more comprehensive than Ultra-Violet rating alone, our UV glass packages can minimize fading damage across the entire solar spectrum more effectively than glass designed primarily to block Ultra-Violet light.\nAll calculations based on 7/8\" thick, double glazed, single strength IG units using NFRC (National Fenestration Rating Council) methodology with Lawrence Berkeley National Laboratory's Windows 5.2 software.\nNFRC is a non-profit, public/private organization created by the window, door and skylight industry. NFRC's primary goal is to provide accurate information to measure and compare the energy performance of window, door or skylight systems.\nOther Glass Options:\n- Triple Glazed High Performance Low-E Argon or Krypton Glass\n- Inspirations™ Art Glass\n- Obscure Glass\n- Double Strength Glass\n- Tempered Glass\n- Tinted Glass in Bronze, Gray or Green\n- Azurlite® Glass","domain":"optical_engineering"}
{"url":"http://www.safetysolutions.net.au/content/machine/product/brickcom-ob-3-np-star-industrial-camera-310242902","date":"2017-03-28T09:57:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189686.56/warc/CC-MAIN-20170322212949-00254-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8511291742324829,"token_count":201,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__204406722","lang":"en","text":"Brickcom OB-300Np Star industrial camera\nThe OB-300Np Star is a consolidation of several models of the Brickcom Industrial Bullet Camera Series designed to cover all requirements for industrial and commercial surveillance or for upgrade camera installations.\nThe industrial camera features Brickcom’s WDR (wide dynamic range) technology and a 3 MP Sony Exmor CMOS sensor for low lux situations.\nAdditional features include: IR (infrared) illumination up to 25 m, high-quality video output (2048 x 1536 at 30 fps resolution), IP67 outdoor design, POE and 12 V power supply, and Rapid Auto Focus.\nPhone: 07 3120 8700\nPilz PSENopt II safety light curtains are optoelectronic sensing safety devices that detect the...\nThe Emerson AMS 6500 machinery health monitor is certified for Safety Integrity Level (SIL) 2,...\nThe Saferoads Zone Essential VMS trailer is solid and reliable.","domain":"optical_engineering"}
{"url":"https://googledata.org/2014/04/page/4/","date":"2023-03-23T04:40:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944996.49/warc/CC-MAIN-20230323034459-20230323064459-00312.warc.gz","language_score":0.9021158218383789,"token_count":862,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__184448959","lang":"en","text":"Lens Blur in the new Google Camera app\nApril 16th, 2014 | by Research @ Google | published in Google Research\nPosted by Carlos Hernández, Software Engineer\nOne of the biggest advantages of SLR cameras over camera phones is the ability to achieve shallow depth of field and bokeh effects. Shallow depth of field makes the object of interest “pop” by bringing the foreground into focus and de-emphasizing the background. Achieving this optical effect has traditionally required a big lens and aperture, and therefore hasn’t been possible using the camera on your mobile phone or tablet.\nThat all changes with Lens Blur, a new mode in the Google Camera app. It lets you take a photo with a shallow depth of field using just your Android phone or tablet. Unlike a regular photo, Lens Blur lets you change the point or level of focus after the photo is taken. You can choose to make any object come into focus simply by tapping on it in the image. By changing the depth-of-field slider, you can simulate different aperture sizes, to achieve bokeh effects ranging from subtle to surreal (e.g., tilt-shift). The new image is rendered instantly, allowing you to see your changes in real time.\nLens Blur replaces the need for a large optical system with algorithms that simulate a larger lens and aperture. Instead of capturing a single photo, you move the camera in an upward sweep to capture a whole series of frames. From these photos, Lens Blur uses computer vision algorithms to create a 3D model of the world, estimating the depth (distance) to every point in the scene. Here’s an example — on the left is a raw input photo, in the middle is a “depth map” where darker things are close and lighter things are far away, and on the right is the result blurred by distance:\nHere’s how we do it. First, we pick out visual features in the scene and track them over time, across the series of images. Using computer vision algorithms known as Structure-from-Motion (SfM) and bundle adjustment, we compute the camera’s 3D position and orientation and the 3D positions of all those image features throughout the series.\nOnce we’ve got the 3D pose of each photo, we compute the depth of each pixel in the reference photo using Multi-View Stereo (MVS) algorithms. MVS works the way human stereo vision does: given the location of the same object in two different images, we can triangulate the 3D position of the object and compute the distance to it. How do we figure out which pixel in one image corresponds to a pixel in another image? MVS measures how similar they are — on mobile devices, one particularly simple and efficient way is computing the Sum of Absolute Differences (SAD) of the RGB colors of the two pixels.\nNow it’s an optimization problem: we try to build a depth map where all the corresponding pixels are most similar to each other. But that’s typically not a well-posed optimization problem — you can get the same similarity score for different depth maps. To address this ambiguity, the optimization also incorporates assumptions about the 3D geometry of a scene, called a “prior,” that favors reasonable solutions. For example, you can often assume two pixels near each other are at a similar depth. Finally, we use Markov Random Field inference methods to solve the optimization problem.\nHaving computed the depth map, we can re-render the photo, blurring pixels by differing amounts depending on the pixel’s depth, aperture and location relative to the focal plane. The focal plane determines which pixels to blur, with the amount of blur increasing proportionally with the distance of each pixel to that focal plane. This is all achieved by simulating a physical lens using the thin lens approximation.\nThe algorithms used to create the 3D photo run entirely on the mobile device, and are closely related to the computer vision algorithms used in 3D mapping features like Google Maps Photo Tours and Google Earth. We hope you have fun with your bokeh experiments!","domain":"optical_engineering"}
{"url":"https://portals7.gomembers.com/njwater/Programs/UAVServices.aspx","date":"2024-04-16T02:47:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817036.4/warc/CC-MAIN-20240416000407-20240416030407-00895.warc.gz","language_score":0.8883029222488403,"token_count":110,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__105903090","lang":"en","text":"For pricing, details and specification Contact Us\nDownload PDF Brochure\nView the original image here\nThe orthomosaic image above was created from 80 individual images collected by the UAVs high resolution camera. A combination of computer software, mathematics and photogrammetry techniques makes it possible to stitch these images together to create a highly detailed image. The original image size was approximately 240 MB, when viewed this can show details like footprints, gear boxes and arrows on pipes indicating flow direction.\nOrthomosaic and 3D Mapping","domain":"optical_engineering"}
{"url":"https://www.lapidarist.tools/magnifier.html","date":"2019-07-17T20:34:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525402.30/warc/CC-MAIN-20190717201828-20190717223828-00483.warc.gz","language_score":0.7794550657272339,"token_count":894,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__124196259","lang":"en","text":"Magnifier, Microscope and UV Light\nTriplet magnifiers incorporate three separate glass lenses bonded together to provide sharp distinct magnified images A swing-away nickel plated case protects the lens and serves as a handle Protective storage pouch included Focal Distance:0.8\" (2.0 cm),Diameter:12.5 mm. Available in 10x, 20x and 30x.\n29.80 $(VAT incl.)\nCell Phone Magnifier\nTurn on your camera and check out the close-up, zoom up to 60X magnification using your device's digital zoom. Directly connected to your media device, no wire need easy to use. There are 2 LED lights and 1 UV light on this magnifier. The LED lights enable you to use this magnifier in a dark environment; the UV light helps you to check whether you cash is real or fake. The size of this magnifier is 1.8\"x0.66\"x1.95\", a very portable size and with the cloth bag, it is easy to carry with.\nCell Phone Magnifier\n14.90 $(VAT incl.)\nMagnifier Eyeshade 10x -25x\n19.80 $(VAT incl.)\nMagnifier Eyeshade Until 25x\nA left eyeshade and a right eyeshade with an LED light are installed on the bracket of the glasses which are adjustable to fit in with the face size. The eyeshade can be rotated up and down 180 degrees on the bracket, so that you do not have to remove the entire bracket when you stop using the magnifier.\nMagnifier 10x, 15x, 20x and 25x.\nComfortable Magnifier Eyeshade\nVery light and comfortable magnifier eyeshade with LED perfect buddy for cabbing. These comes with set of 5 lenses 1x,1.5x,2x,2.5x and 3.5x packed in a box.\nMagnifier Eyeshade 1.5x - 3.5x\n14.80 $(VAT incl.)\n360 degree rotatable binocular head offers six magnification settings 40X, 80X, 100X, 200X, 400X, 800X, and 1000X. Objectives: Achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil) with eyepieces WF10X, WF20X and WF25X. Sturdy Mental Framework, large double layer mechanical stage with scale, abbe NA1.25 condenser with iris diaphragm, coaxial coarse & fine focus knobs and variable intensity LED transmitted illumination system. Come with 10pcs blank slides, attachment for cell phone, You can make your own specimen once out of the box and begin to view them under the microscope. Clinical examination, teaching demonstration, and biological, bacteriological and pharmaceutical researches. Perfect for any hobbyist, student, or even professional.\n249.00 $(VAT incl.)\nLittle pocket ultraviolet LED flashlight for quick check if the object such as stones, scorpions, bugs etc. light. The LED flashlight can be zoomed in or out to adjust the brightness and and illumination areas. The flashlight runs with one AA battery which is not included. Length 95mm x diameter 25mm.\nUV Pocket Flashlight\n9.90 $(VAT incl.)\nUV Light Long Wave\nHigh quality UV flashlight, where you can switch between R5 white light, yellow light, UV 365mn and UV 395mn light. Pocket size but very powerful LED technique 490 lumens with 4 high quality LED’s powered by a build in battery which is per USB wire chargeable. Charging time takes 4 hour after you can use the flashlight 2.40 hours. Aluminium casting length 148mm x diameter 20mm, weight 179 gram.\nUV Long Wave Pocket Flashlight\n59.80 $(VAT incl.)\nUV Short Wave Pocket Flashlight\n69.90 $(VAT incl.)\nUV Light Short Wave\nSmall, lightweight lamps are ideal for use anywhere. Single wavelength model 254mn (short wave). Lamps include one 4-Watt tube and measure\nL159mm x W51mm x H25mm. average bulb life is 3000 hours. Runs with 4AAA battery which are not included.","domain":"optical_engineering"}
{"url":"https://clockhistory.com/0/patent-48-1.html","date":"2020-10-26T12:20:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107891228.40/warc/CC-MAIN-20201026115814-20201026145814-00689.warc.gz","language_score":0.7586618065834045,"token_count":277,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__61424389","lang":"en","text":"Movement Checking Machine\nSummary: A machine using a beam of light for checking the rate of balance wheel clocks and watches.\nApplication Date: 1927-09-01\nIssue Date: 1932-03-08\nPatent Number: 1848520\nSerial Number: 216915\nNotes: Westclox started putting a hole in the rim of their balance wheels to use this timing machine. They did this for many years.\nA rotating polygonaly faced mirror flashes a beam of light through an optical system. A hole in the balance wheel lets the light through when the hole passes by. If the balance wheel is in synchronization with the projected beams of light, the projected image of the light beam will be stationary on the display screen. If the balance is not in synchronization with the light beams, the project image will move across the screen.\nInventor Information: William Barton Eddison of Ardsley on Hudson, New York, Assignor to Western Clock Company , of Peru, Illinois, a Corporation of Illinois.\nPatent Type: Utility\nPatent Country: United States\nPatent Category: Clock & Watch Manufacturing\nAssignee: Western Clock Company 1912 to 1936\nInventor: Eddison, William\nAttorney: Neureuther, Andrew\nPatent URLs: U.S. Patent Database; Google Patents","domain":"optical_engineering"}
{"url":"https://www.anythingsportsman.com/shooting-gear/optics-and-scopes/spotting-scopes/","date":"2019-12-07T18:42:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540501887.27/warc/CC-MAIN-20191207183439-20191207211439-00182.warc.gz","language_score":0.9006405472755432,"token_count":107,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__59426015","lang":"en","text":"Looking for more power for your western big game hunting adventure? Anything Sportsman has the spotting scope for you. Shop HD spotting scopes, modular spotting scopes, digital spotting scopes, angled or straight. Find trusted brands like Vortex Optics, Nikon, Leupold, Bushnell, and Redfield spotting scopes from a variety of optics suppliers. Don't forget to check out our selection of spotting scope accessories like window mounts, tripods, tripod adapters, lens cleaners, and cases to protect your investment on the hunt.","domain":"optical_engineering"}
{"url":"https://www.ycxsecurity.com/types-of-cctv-monitoring-systems.html","date":"2022-01-26T23:11:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305006.68/warc/CC-MAIN-20220126222652-20220127012652-00556.warc.gz","language_score":0.8981046676635742,"token_count":288,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__245044535","lang":"en","text":"Each IP network camera has its own IP address, data processing function, and built-in application software. It can be used as a network server, FTP server, FTP client and mailbox client. The advanced IP camera also has its special functions, such as motion detection, alarm signal output/input equipment and mail support functions.\nThe high-quality wireless camera is a new type of surveillance camera that embeds the wireless receiver into the network camera. It uses WIFI channels and complies with the IEEE 802.11B/G standard protocol. The wireless security camera outputs ordinary PAL TV signal with a built-in electronic automatic photosensitive device and provides automatic light compensation function. Its power consumption is particularly small, and prevents image blur and smearing.\nThe wireless PTZ camera represents the omni-directional (left-right/up-down) movement of the pan/tilt and the zoom control of the lens in the security monitoring application.\nIn the scene range monitored by the camera, when the moving target appears, the user can manually lock or preset the position to automatically trigger and lock a moving target to trigger the wireless PTZ camera to perform autonomous and automatic PTZ tracking and automatically control the an/tilt omni-directional rotation of PTZ camera. The user automatically tracks of the locked moving target with view to ensure that the tracking target continues to appear in the center of the lens.","domain":"optical_engineering"}
{"url":"https://www.melissazimmermanwellnessco.com.au/lightlab","date":"2024-04-21T21:27:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817819.93/warc/CC-MAIN-20240421194551-20240421224551-00029.warc.gz","language_score":0.9635515213012695,"token_count":240,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__179775797","lang":"en","text":"LED technology may seem relatively new to some, but the science behind it dates back for decades.\nNASA was the first to develop this technology in the 1980s, for use by astronauts while in space. From developing it to grow vegetables in space shuttles, to ailing skin conditions caused by a lack of sunlight, LED Light was proven to benefit NASA astronauts in many ways. As for the different effects of the colour of the light- NASA found that plants favoured certain colours on the wavelength spectrum, growing at faster rates under red and blue light.\nThese light wavelengths were found to have a similar effect on skin, encouraging cells to regenerate faster and at a higher level, therefore repairing the skin faster, and having a high cell turnaround.\nWhile LED Light Therapy has since developed within the cosmetic industry, the science and benefits behind it are the same.\nWhile some are concerned that by replacing the benefits of natural sunlight with LED light, the UV factor is still apparent. While LED Light produces a very small amount of UV radiation, it does not emit any UV radiation. This is because the amount that is produced is converted to white light by the phosphors inside the lamp.","domain":"optical_engineering"}
{"url":"https://hungarianfilm.com/canon-expands-line-of-mirrorless-cameras-and-lenses-for-professionals-ymcinema/","date":"2022-07-07T17:27:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104495692.77/warc/CC-MAIN-20220707154329-20220707184329-00310.warc.gz","language_score":0.9314254522323608,"token_count":676,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__175224124","lang":"en","text":"Canon expands line of mirrorless cameras and lenses for professionals – YMCinema\nCanon’s monetary outcomes presentation consists of new and intriguing subjects. For instance, the merger of the Canon Imaging division into the Optical Business division, which can permit the combination of Canon’s in depth optical know-how to strengthen its vary of cameras. Moreover, Canon says it’s going to broaden the road of mirrorless cameras and lenses for professionals.\nIn accordance with Canon Monetary Outcomes Introduced on the 2021 Company Technique Convention by Fujio Mitarai, Chairman and CEO, the corporate will change its enterprise construction to enhance synergy between product strains. This implies, the elimination of imaging programs to combine into the optical trade. Canon says this alteration will broaden the scope of the cameras to the optical trade and thus simplify the event of the road of cameras and lenses for professionals and superior amateurs. As well as, Canon provides that it’ll give attention to “subsequent technology client video programs”.\nWe intention to broaden our area of enterprise from cameras to the optical trade by integrating our optical applied sciences cultivated in our digicam enterprise with the wide range of different applied sciences we personal.\nAs acknowledged within the speech abstract: “The digicam market has contracted considerably resulting from developments within the picture seize capabilities of smartphones. Regardless of this, the broader optical trade is a promising space of progress for imaging units which primarily embrace lenses and sensors. We intention to broaden our area of enterprise from cameras to the optical trade by integrating our optical applied sciences cultivated in our digicam enterprise with the wide range of different applied sciences we personal. The interchangeable lens digicam market continues to contract and has already shrunk to a 3rd of its most dimension, however the fee of decline has slowed down 12 months on 12 months and we now really feel it has began to hit all-time low ”.\nGoing ahead, we plan to take care of our gross sales income, protecting our main place available in the market by increasing our line of mirrorless cameras and lenses for professionals and superior hobbyists who’re individuals who care. ‘are inquisitive about picture high quality and digicam capabilities.\nCanon states that: “Going ahead, we plan to take care of our gross sales income, keep our market management place by increasing our line of mirrorless cameras and lenses for professionals and superior amateurs alike. are individuals who care about picture high quality and digicam capabilities. As well as, we are going to work on constructing subsequent technology client video programs. We are going to broaden these new companies on the identical scale as cameras and community cameras and develop them as a 3rd pillar supporting our optical trade.\nCanon has merged its well-known imaging programs with the optical trade to facilitate synergy in manufacturing. On the subject of high-end mirrorless cameras, Canon says this part will proceed to develop, which implies extra variations are anticipated. There isn’t a point out of cinema cameras, nonetheless, between the strains it may be understood that Canon’s intentions are utilizing its sensor know-how to be carried out extra successfully on its skilled merchandise (= cinema cameras). Both means, that is our interpretation. What’s your?","domain":"optical_engineering"}
{"url":"http://interlux-bg.com/?lang=en","date":"2023-09-22T22:31:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506423.70/warc/CC-MAIN-20230922202444-20230922232444-00495.warc.gz","language_score":0.9159986972808838,"token_count":143,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__18928830","lang":"en","text":"Interlux Ltd was founded in 1996 in Smolian, Bulgaria. In 1997 Interlux started manufacturing emergency EXIT luminaries, incorporating the latest technologies.\nSince 1998 all luminaries electronics are SMT (surface mount technology) based, using high quality SMD components.\nIn 2003 Interlux started manufacturing emergency LED luminaries based on the latest ultra bright LEDs and light guide technology .\nSince 2015, company Interlux Ltd moved to town Shumen.\nInterlux is an R&D oriented company with very strong R&D team applying the advanced technology design constantly. Interlux always focuses on R&D and enhances quality for its customers. At present Interlux owns several design patents for its products .","domain":"optical_engineering"}
{"url":"https://techmila.com/choose-macro-lenses-use/","date":"2022-10-03T18:08:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337428.0/warc/CC-MAIN-20221003164901-20221003194901-00599.warc.gz","language_score":0.9233590364456177,"token_count":2753,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__160648180","lang":"en","text":"The word ‘macro’ has become synonymous with close-up photography. Most compact cameras having a macro shooting mode, and a large number of zoom lenses feature the word ‘macro’ in their title.\nTypically, these lenses can reproduce small objects at up to 0.5x life size on a camera’s imaging sensor. In most cases, dedicated macro prime lenses go further still, enabling full 1.0x or 1:1 magnification at their closest focusing distances.\nThat might not sound particularly impressive, but bear in mind that an APS-C format image sensor is only about the size of a standard postage stamp. You’re therefore filling the entire image frame with something very small and, once the captured image is displayed on a screen or printed on paper, the degree of enlargement is enormous – a macro lens can reveal almost microscopic levels of detail, and make tiny bugs look like giant alien invaders.\nThe key question is: what makes a ‘good’ macro lens? Let’s take a look at the specifications and features that are important to consider.\nHow to choose the right lens\nMost standard zoom lenses give a maximum magnification factor of about 0.3x. Zoom lenses, and even some prime lenses with a ‘macro’ badge, give a greater magnification of around 0.5x. But if you’re buying a lens for close-up photography, a macro prime that gives a full 1.0x magnification is the best choice. Taking things to the extreme, the Canon MP-E 65mm f/2.8 delivers a monstrous 5.0x maximum magnification, but it’s notoriously difficult and fiddly to use, and generally best avoided.\nAs we’ve mentioned, a 1.0x magnification factor reproduces an object at full life size on a camera’s sensor. There’s a bonus if you’re using an APS-C format camera with a 1.5x or 1.6x crop factor, as you’ll fill more of the image frame with smaller objects, giving greater ‘effective’ magnification. It’s a similar effect to the way that crop-sensor cameras boost the effective telephoto reach of a lens.\nThere are several macro prime lenses on the market that are designed exclusively for APS-C format cameras. However, you’re often better off buying a full-frame compatible macro lens. They’re generally not much larger, heavier or more expensive, and you’ll avoid any heartache if you upgrade to a full-frame camera body in the future.\nA crucial consideration when choosing a macro lens is the focal length. Unlike when buying regular lenses, it’s not really about wide-angle coverage or telephoto reach. Instead, it’s all about the minimum focusing distance. Macro lenses with a longer focal length have a correspondingly longer minimum focusing distance, putting more working space between you and what you’re shooting when you need to maximize magnification.\nFor example, the Nikon AF-S DX 40mm f/2.8G Micro lens (Nikon uses ‘Micro’ instead of macro in its lens classifications) has a minimum focusing distance of 16cm. That might sound reasonable, but the focusing distance is always measured from the ‘focal plane’ of the camera, corresponding to the active surface of the image sensor. This is towards the rear of the camera body and, once you take into account the depth of the body and the length of the lens, the front of the Nikon 40mm lens extends to a mere 3.5cm from the subject. That’s less than 1.5 inches, and uncomfortably close for many types of macro photography, especially if you’re trying to shoot bugs and other small wildlife.\nEven for inanimate objects, the closeness of the lens will often cast a shadow over what you’re shooting, blocking out ambient light. At the other end of the scale, 150mm and 180mm macro prime lenses have minimum focus distances of around 38cm and 47cm respectively, giving you plenty of breathing space, but they tend to be expensive. All things considered, macro lenses with a focal length of between 90mm and 105mm are the most popular\nAll things considered, macro lenses with a focal length of between 90mm and 105mm are most popular. They’re a manageable size and weight, affordable to buy, and have a convenient minimum focus distance of around 30cm.\nThe distance between the front of the lens and the subject will typically be around 14cm, which feels very natural for close-up shooting. To maintain this, most current macro lenses have internal focusing mechanisms, so that the front element of the lens neither rotates nor extends, and doesn’t encroach on the subject at short focus settings.\nAutofocus is an important factor for most photographers these days. Given that macro prime lenses also work well for portraiture and general short telephoto shooting, a fast, accurate and quiet autofocus system is good to have.\nFor extreme close-ups, however, you’re more likely to focus manually, due to the tiny depth of field (which we’ll come to in the next section). A smoothly operating manual focus ring with plenty of rotational travel helps to enable very precise adjustments. It’s a major bonus in a macro lens. The optical quality at very narrow apertures is also important, as you’re likely to have to use narrow apertures to gain even a little depth of field.\nIncreasingly, macro prime lenses nowadays feature image stabilization. Some, like the Canon EF 100mm f/2.8L Macro IS USM and the latest edition of the Tamron SP 90mm f/2.8 Di VC USD Macro, have ‘hybrid’ stabilizers. These are more effective for close-up shooting, as they correct for vertical/horizontal shift in the camera as well as the more usual vibration or ‘wobble’ associated with handheld photography. But while stabilization is nice to have for general and moderately close-up shooting, it’s of negligible benefit for extreme close-ups.\nOverall then, we’d recommend a macro lens with a 90mm to 105mm focal length, a fairly fast f/2.8 aperture rating, good autofocus and manual focus facilities, plus effective image stabilization if your camera doesn’t have built-in, sensor-shift stabilization.\nThe autofocus, fast aperture and stabilizer are more for portraiture and general short-telephoto shooting than for macro photography, but it’s always nice for a lens to have multitasking capabilities.\nHow to shoot close-ups\nThere are some useful tricks and tips to be aware of when shooting close-ups. For starters, stillness is essential. More than in any other type of photography, any vibration or movement in the camera can massively degrade the sharpness of the image. For this reason, a tripod is all but essential for shooting extreme close-ups. A problem, however, is that it can be difficult to get the camera sufficiently close to many types of subject when using a regular tripod. A growing number of tripods have a pivot facility, so you can rotate the centre column and use it as a horizontal boom for supporting the camera. This is great for macro shooting, but it’s wise to hang a your camera bag or other additional weight from the tripod to avoid the risk of it toppling over.\nEven with the sturdiest tripod in the world and a remote controller than enables you to shoot without touching the camera, DSLRs can still suffer from vibration. This is due to a phenomenon called ‘mirror-bounce’, caused by the action of the reflex mirror flipping up immediately prior to the exposure. This introduces vibrations that can take a moment to dissipate, and it can actually be more of a problem when using a tripod than in handheld shooting, where the relative softness of your hands can act as a vibration damper.If you don’t have a remote controller, some cameras enable you to use the mirror lock-up mode with a self-timer release of between two and 10 seconds\nTo overcome mirror bounce, many DSLRs have a mirror-up or mirror lock-up shooting mode. On the first press of the shutter/remote controller button, the mirror flips up but the shutter doesn’t open. You can then apply a second press purely to release the shutter, once vibrations have died down. If you don’t have a remote controller, some cameras enable you to use the mirror-up mode with a self-timer release of between two and 10 seconds. Most current Nikon DSLRs don’t enable this combination but, instead, have an ‘exposure delay’ custom setting, which sets an automatic delay between the mirror flipping up and the shutter opening. Indeed, some top-flight cameras also give you the option of using an electronic first curtain to open the shutter, thereby eliminating vibrations from the mechanical shutter as well.\nUsing Live View\nEntry-level DSLRs usually don’t have a mirror-up or exposure delay mode to avoid mirror bounce. A good workaround is to use Live View shooting mode, which locks up the reflex mirror for viewing the subject on the camera’s LCD screen, via the image sensor. You can therefore use Live View with a remote controller or a self-timer delay to avoid mirror-based vibrations. A further bonus of using Live View mode is that you can utilize the magnified preview option to gain utmost accuracy with critical manual focusing, zooming in on the most important part of the subject.\nMacro lenses are typically ‘flat field’ lenses, in that they don’t suffer from field curvature. This means that if you’re photographing a flat, two-dimensional object like a postage stamp from head-on, everything should be sharply in focus from the centre to the corners. It’s a bit academic in most cases, however, as you’ll most probably be shooting three-dimensional objects. The problem here is that, at or near their minimum focus distances for gaining high levels of magnification, macro lenses have a tiny depth of field. This is a measure of the distance between the nearest and furthest points in a scene that can be rendered sharply.\nAs a case in point, let’s say we’re shooting with a 100mm macro lens on a full-frame DSLR, at its closest focus distance: the entire depth of field will be just a single millimeter. Narrow the aperture to f/8 or f/16, and the depth of field only increases to 3mm or 6mm respectively. This is why optical performance at narrow apertures is important with macro lenses. Even so, you can find that only a small part of a three-dimensional object will be sharp in an image, and it’s why accurate focusing is so important.\nOne trick for extending the depth of field is ‘focus stacking’. This requires you to capture a number of images with the focus distance or the camera itself shifted slightly between successive shots. A ‘macro focusing rail’ like the Manfrotto Micro-positioning Sliding Plate can be a big help in practical terms, but you’ll still need to merge the resulting shots together, using a layer-based editing program like Adobe Photoshop.\nAnother difficulty with using narrow apertures to gain depth of field is that it can result in relatively slow shutter speeds. That’s bad news, considering that it’s so important to avoid any camera or subject movement. An ideal solution is to use flash, which not only adds illumination right where you need it, but also helps to freeze any motion due to its extremely short duration. The only real downside is that the light from a regular flashgun can be very harsh for macro photography. Also, if the flashgun is placed in the camera’s hotshoe, it’ll be at an oblique angle to the subject when you’re shooting at close range, resulting in the likelihood of deep, dark shadows.\nMany camera and flashgun manufacturers therefore make ‘macro flash’ alternatives, based on a ring-shaped flash tube or twin compact flash heads that attach to the front of the lens and are driven by a separate control module, which sits in the camera’s hotshoe.\nOne final thing to bear in mind with lighting is that apertures for macro shooting might not be what you think they are. As you adjust the focus distance of a macro lens towards its closest setting, less light passes through the lens to the camera. At the very closest focus distance, transmittance is reduced by an amount equivalent to about two f/stops. You’ll need to take this into consideration if you’re using a dedicated light meter, rather than the camera’s built-in light metering system, or applying manual power settings on a flashgun or studio flash heads.","domain":"optical_engineering"}
{"url":"https://simonfellah.com/global-scanning-probe-microscopes-market-global-scanning-probe-microscopes-industry/","date":"2022-01-23T22:11:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304309.59/warc/CC-MAIN-20220123202547-20220123232547-00064.warc.gz","language_score":0.8430292010307312,"token_count":1187,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__238366560","lang":"en","text":"Scanning microscopes incorporate imaging techniques that measure the surface of small molecules, atoms, and microscales. This approach uses the co-operation of the sharp electrically charged probe with the surface of the samples at specific points. This electrically charged probe is used to interact with the sample which supports researchers to understand the property of the sample sample. In addition, a scanning microscope scans the surface of a sample with a sharp probe to view 3D images at a high magnification rate. Scanning probe technology is widely used to study large molecules and biological samples. In addition, probe microscopy technology is used to measure a variety of inorganic (eg to measure the surface chemistry of molecules), synthetic (eg polymer surface determination) and biological materials (eg polymers and polymer matrix). In addition, scanning microscopy technology can also be used to process and monitor the non-conductive environmental sample.\nAccording to the analysis of the report,Global Microscopy Market Status (2015-2019) and Forecast (2020-2024) by Region, Product Type and End Use” It states that Agilent Technologies, Bruker, Hitachi, NT-MDT, Oxford Instruments, Park Systems and many more are the first entities currently operating in the global scanning microscopy market more efficiently to govern worldwide, recording significant market share value, driving the highest growth To market, generate the highest percentage of revenue, maintain the ruling position and gain the competitive advantage by spreading awareness related to the benefits and features of probe microscopy, deliver better customer satisfaction, employ youth and activists, increase the applications and advantages of probe microscopy, analyze the strategies and policies of government and similar bodies, And improve qualitative and quantitative measures for it, implement profit-taking policies and expansion strategies, and establish countless research and development programs.\nOn the basis of types, the global scanning microscopy market is categorized into atomic force microscopes, scanning tunneling microscopes, and near field scanning optical microscopes. On the basis of applications, the global scanning microscopy market is categorized into life sciences, biology, semiconductors, electronics, materials, and others.\nGlobal Scanning Microscopy Market Report covers company profile of the above mentioned players on few factors for example company overview, business approach, key product offerings, financial performance, KPIs, risk examination, recent developments, regional presence, SWOT analysis and etc. a lot. Conversely, it has been noted that the Global Microscopy Market Research Report also includes an exhaustive analysis and information about the market which has predominant coverage of covid-19 impact on the global Scanning Microscope market along with COVID-19 impact on the products industry chain that depends on upstream and downstream markets.\nThis microscope offers accurate sampling and flexibility for accurate customer adjustments by mounting with other types of analytical heads. Thus, these types of offerings will support the major manufacturers to attract more customers and thus drive the growth of the market. In addition, the countless advantages of scanning microscope compared to traditional optical microscope will further drive the market growth.\nFor more information, kindly refer to the link below:-\nAnkur Gupta, Head of Marketing and Communications\nTags: Agilent Technologies Scanning Microscope Market SizeAnd Argentina Scanning Microscopes MarketAnd Asia-Pacific Scanning Microscopes MarketAnd Brazil Scanning Microscopes MarketAnd used scanning microscopes market salesAnd Canada Scanning Microscopes MarketAnd Chile Scanning Microscopes MarketAnd China Scanning Microscope MarketAnd Colombia Scanning Microscopes MarketAnd Global Scanning Microscopes Covid-19 ImpactAnd Covid-19 Impact Global Scan Scan Microscope MarketAnd Europe Scanning Microscope MarketAnd France Scanning Microscopes MarketAnd Germany Scanning Microscopes MarketAnd Global Atomic Force Microscopes MarketAnd Global electronics microscopes marketAnd Global Life Sciences and Biology Scanning Microscopes MarketAnd Global Near Field Optical Microscopes MarketAnd Global scanning microscope industryAnd Global Surveying Microscope Industry Research ReportAnd Global Scanning Microscopes MarketAnd Global Scanning Microscopes Market AnalysisAnd Global Scanning Microscope Market CompetitionAnd Global Scanning Microscope Market OutlookAnd Global Surveying Microscope Investigation Market Future ForecastAnd Global Scanning Microscopes Market GrowthAnd Major Players in the Global Scanning Microscopes MarketAnd Global Scanning Microscope Market Research ReportAnd Global Scanning Microscopes Market RevenueAnd Global scanning microscope market shareAnd Global Scanning Microscopes Market SizeAnd Global Scanning Microscopes Market TrendsAnd Global Surveying Tunneling Microscopes MarketAnd Global semiconductor microscopes marketAnd Hitachi Scanning Microscopes Market ShareAnd India Scanning Microscopes MarketAnd Industry Research Report on Global Scanning MicroscopesAnd Italy Scanning Microscopes Microscopes MarketAnd Japan Survey Microscopes Microscope MarketAnd Korea Scanner Microscopes MarketAnd Global Surveying Microscopes Market Research ReportAnd Mexico Scanning Microscopes MarketAnd The Middle East and Africa Scanning Microscopes MarketAnd Netherlands scanning microscopes marketAnd North America Scanning Microscopes MarketAnd NT-MDT Scanning Microscopes Market SizeAnd Oxford Instruments Scanning Microscopes Market ShareAnd Park Systems Scanning Microscopes Market SalesAnd Peru Scanning Microscopes MarketAnd Russia Scanning Microscopes MarketAnd Scanning microscope industry in the worldAnd Global Microscope Microscope Market SurveyAnd South Africa Scanning Microscopes MarketAnd South America Scanning Microscopes MarketAnd Spain Scanning Microscopes MarketAnd Switzerland Scanning Microscopes Microscopes MarketAnd Turkey Scanner Microscopes MarketAnd UK Scanning Microscopes MarketAnd US Survey Microscopes Market Investigation","domain":"optical_engineering"}
{"url":"http://www.scienceclarified.com/Io-Ma/Lens.html","date":"2023-10-04T07:42:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511361.38/warc/CC-MAIN-20231004052258-20231004082258-00528.warc.gz","language_score":0.9300095438957214,"token_count":733,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__162227619","lang":"en","text":"Lenses are carefully shaped pieces of glass, plastic, or other transparent material. They are designed to manipulate light rays to create particular kinds of images. For example, the lenses in a telescope are designed to produce an enlarged view of a faraway object. Other common form of lenses are those found in eyeglasses, cameras, and microscopes.\nItalian scientist Galileo Galilei (1564–1642) and Dutch scientist Antoni van Leeuwenhoek (1632–1723) were among the first to use lenses extensively in scientific research. Other scientists—French mathematician René Descartes (pronounced ren-AY day-KART; 1596–1650) and English scientist Isaac Newton (1642–1727), among others—dedicated most of their lives to improving lens designs. Despite the amount of time it has been in existence, the lens remains one of the simplest and most useful optical tools available.\nLenses work on two principles: that light always travels in straight lines, and that it travels more slowly through glass or plastic than it does through air.\nLight bends when it exits one substance (the air) and enters another (a lens). It bends again as it leaves the lens. The amount of bending depends greatly upon how much the lens is curved. All lenses have at least one curved surface, and most have two. There are two kinds of lenses, classified by how they are curved. Convex lenses (also called converging or positive) are thick in the middle and thin along the edges. Concave lenses (also called diverging or negative) are thin in\nthe middle and thick along the edges. Each design bends and affects light differently.\nA convex lens bends light toward a central point (see Figure 1a). The farther from the center of the lens a beam of light strikes, the more the resulting light ( f ) is bent. Assuming an object is more than one focal length (a specific distance determined by the construction of the lens) away from the lens, the image viewed through a convex lens is always upside down. This is called a real image, and it can be projected upon a screen. The real image can be smaller or larger than the original object, also depending upon its distance from the lens.\nConvex lenses magnify or enlarge objects. This type of lens is used in microscopes, telescopes, and binoculars.\nConcave lenses bend light away from a central axis (see Figure 1b). Similar to a convex lens, the light that strikes near the edge of the concave lens is bent more sharply away from the central axis ( f ). The image seen through a concave lens is called a virtual image. It is always right side up and cannot be projected. The virtual image is always smaller than the original, no matter what its distance from the lens.\nIndividual lenses cannot form sharp, flawless images over a wide field, and the images are always accompanied by distortion and color aberrations. Thus, most optical devices use systems of lenses that often assemble convex and concave lenses in precise combinations to minimize distortion or produce various effects.\nCertain lenses, called plano-concave and plano-convex, are curved on only one side. Optical correction lenses, such as those used in eyeglasses, are ground with one side concave and one convex. Convexo-concave lenses aid patients who are nearsighted, while farsighted patients require concavo-convex lenses.\n[ See also Telescope ]","domain":"optical_engineering"}
{"url":"https://www.huksefluxindia.com/products/solar-radiation-sensors/albedometers/sra11-albedometer","date":"2023-06-01T06:13:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00539.warc.gz","language_score":0.8255161643028259,"token_count":171,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__79460682","lang":"en","text":"SRA11 first class albedometer is an instrument that measures global and reflected solar radiation and the solar albedo, or solar reflectance. It is composed of two SR11 first class pyranometers and one AMF02 albedometer mounting kit. AMF02 includes one glare screen, one mounting fixture with rod, mounting hardware and tools. Each pyranometer has a thermopile sensor and offers output in millivolt; the upfacing one measuring global solar radiation, the downfacing one measuring reflected solar radiation. SRA11 complies with the latest ISO and WMO standards. The modular design facilitates maintenance and calibration.\n- global solar radiation and reflected solar radiation\n- albedo or solar reflectance\n- net solar radiation\nor contact us: firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"https://discuss.cocos2d-x.org/t/tutorial-cocos-creator-searchlight-effects-with-shaders/51104","date":"2020-10-26T14:16:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107891228.40/warc/CC-MAIN-20201026115814-20201026145814-00179.warc.gz","language_score":0.9036564826965332,"token_count":1369,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__136941680","lang":"en","text":"Tutorial: Cocos Creator: searchlight effects with shaders\nThe searchlight effect means that the entire scene or picture is black, and only the place illuminated by a light is bright. There are many ways to implement it but for this tutorial we use use a shader. The main reason to use a shader is to achieve higher efficiency, better effects, and increased scalability. Example:\nPrinciples of Illumination\nDevelopers know that the color in the program is determined by the three values of RGB. For example, the RGB value of red is\n(255, 0, 0), but the maximum value of the color in the GLSL language is\n1.0, and it is usually represented by a\nvec4 data type. Red in GLSL is:\nvec4(1.0, 0.0, 0.0, 1.0);. The fourth parameter is the alpha value. In this example it is set to\nIn reality, objects have all kinds of colors, not that they are the color themselves, but the color of the light it can reflect. Sunlight contains all colors of light. The color of light that an object can reflect is related to the particle characteristics of the object itself. This determines the wavelength range of light that it can reflect, while other ranges of light are absorbed. This results in see objects of various colors. Example:\nUsing this principle, we can use a shader to control the color display of the target to simulate lighting. For example, white light is set by using:\nvec4(1.0, 1.0, 1.0, 1.0). This vector is multiplied by the color in the fragment shader, because each value is\n1, the color of the object does not change. When we set the red light to\nvec4 (1.0, 0.0, 0.0, 1.0), the object will be red.\nWe then control the range of light to be a circle, then it is called a searchlight effect.\nThe following is the implementation process of a shader, not the complete code, only code snippets, developers who are familiar with the GLSL language should be able to understand, developers who do not understand can go to the end of the article to get the complete code and come back to learn.\nThe first is the light range logic, which judges whether it is within the light range based on the distance between the two points and the light center point. The points within the light range are the target color, and the points outside the range are set to black:\nExample when running:\nA general lighting range effect is available, but it is not natural, there is no transition at the edge of the light, and there are jagged edges, let’s add the transition effect to the edge of the light through interpolation:\nsmoothstep()function, in the above image, receives three parameters, the first is the minimum value of the range, the second is the maximum value of the range, and the third parameter is the target value\nxthat needs to be calculated. If\nxis less than the minimum value, it returns\n0, and if it is greater than the maximum value, it returns\n1, and the rest return\n1interpolation. The range in the above code is the light radius and the radius plus\n0.1to perform interpolation to achieve the transition effect of the light edge. Look at it after the modification, the effect is already good. Example:\nFinally, we can notice the movement of the light source by setting the\nlight_centerparameter through code:\nNote:- if your scene or target picture is not a square, then the range of illumination may not be a perfect circle, but an ellipse. This is because the coordinate range in Open GL is from\n1, but the width and height are not necessarily proportional. So when developers calculate the range of the circle, pass in the aspect ratio of the scene or picture, and then correct it when calculating the range of the circle:\nDiffusing Ambient Light\nEveryone knows that no matter how dark a room is, we can always vaguely see the outline of the object, which is caused by the diffusely reflected ambient light. The surface of the object is not smooth, but rather is uneven. It will always reflect the light of the light source in all directions. After receiving the reflected light, other objects will reflect again and repeat the cycle. This is diffuse reflection, which is also called ambient light. This is why we can see things in a room without a light source. The principle of diffuse reflection is as follows:\nIn our example, the place where the light does not shine is completely dark, and sometimes we also need some ambient light caused by diffuse reflection. The real diffuse reflection algorithm is very complicated. It needs to be calculated by the normal vector. Here we are just a 2D texture map, so we just set the ambient light to an average constant, and add the environment to the logic where the light is not illuminated. Optical logic:\nCan you see? The running effect is basically the same as the effect at the beginning of the tutorial.\nLight intensity and light source color\nIn the previous process, we did not intervene in the target color within the illumination range, ensuring the inherent color of the target. However, sometimes we also need to change something. For example, the ambient light is mentioned above. The place with no light is not completely dark. Then, conversely, the place with light must be bright? Sometimes we also need to adjust the brightness and color of the light.\nLook at the brightness of the light first. This is relatively simple. The logic is the same as the intensity of the ambient light. We then define a parameter of the light source intensity:\nMultiply the lighting part and the transition part of the lighting edge involved in the interpolation operation by the light intensity to achieve our target effect. (However, one issue that needs to be noted here is what effect will the light intensity result be less than ambient_strength? You can try it out and try to modify it.)\nNext, Add support for the color of the light source. According to the lighting principle mentioned at the beginning of the tutorial, developers can directly multiply the target color in our previous example by a light source color. For the light source color, developers should use the red light mentioned above:\nThis tutorial was contributed by Ituuz. Thank you Ituuz!. Visit their personal blog to learn more and find more interesting tutorials.\nYou can download the complete code for this tutorial on GitHub.","domain":"optical_engineering"}
{"url":"http://angelofcqd949.tinyblogging.com/Eye-Surgical-treatment-6490320","date":"2018-07-16T11:57:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589270.3/warc/CC-MAIN-20180716115452-20180716135452-00530.warc.gz","language_score":0.952526330947876,"token_count":1320,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__271800679","lang":"en","text":"Eye Surgical procedure has actually come to be a mainstream method of vision correction, as well as this short article will clarify the benefits and drawbacks of three various approaches being provided to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis and is an eye surgical system which completely fixes vision by getting rid of a thin layer of the cornea. This procedure functions best on individuals with moderate to high degrees of myopia (nearsightedness), reduced to modest levels of hyperopia (farsightedness) and astigmatism associated with nearsightedness, and also who have thick corneas. It is the most widely known medical vision improvement approach.\nPeople with normal eye view see objects clearly because pictures are brought right into a correct prime focus by the cornea as well as lens of the eye. Preferably, the cornea's curvature is evenly matched to its length in a regular eye. Individuals with astigmatism, myopia or hyperopia have off-and-on shaped corneas, so the items seen are not focused correctly. LASIK adjustments corneal form by exact removal of corneal tissue, and also by doing so deals with the eyes' focusing power.\nThere are, however, risks to LASIK eye surgery.\nThere is a remote opportunity of complete loss of vision. If this occurs, it is typically because the individual had a pre-existing condition which ought to have precluded the surgical treatment in the first place, such as pregnancy, cataracts, arthritis, diabetes, glaucoma, or lupus. People with big students are likewise bad candidates for LASIK. Dry eye disorder will certainly be worsened by this procedure.\nA couple of patients grumble that they completely see \"ghost\" photos, have actually obscured vision, lessened comparison as well as bad evening vision. When LASIK wased initially presented, 5% of people had post-operative grievances; nevertheless, improvements in the treatment have triggered this price to drop to less than 1% if LASIK is performed by competent professionals as well as patients are properly evaluated before surgical procedure. If troubles do take place, they could usually be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical treatment since 1998. While there are a lot of satisfied people, there are nonetheless no long-term research studies about its results. Understand the restrictions and the risks of LASIK eye surgical treatment prior to you sigh up for the procedure.\nThough much less popular, these little implants could boost vision in clients with moderate to modest additional info myopia without the danger of long-term eye damages fundamental in the cells removal strategy of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter form. Though a little much less precise compared to LASIK, they are removeable and also exchangeable, so if the patient has an unanticipated over- or under-correction, the dental implant can be removed and also one more of a various size inserted to obtain the preferred modification. The implants are located at the edge of the cornea, so the central aesthetic location is entirely intact and also intact, as well as the toughness of the cornea is undiminished, making it a better alternative for pilots as well as those that take part in contact sports where eye injury is a possibility.\nIntacs are unsuitable for severe nearsightedness and more than minor astigmatism (1.00 diopters), as the cornea could just be extended so far. If the Intacs are removed, vision go back to its preoperative degree. Apart from vision modification, click here for more Intacs are likewise used to treat keratoconus.\nIntacs are FDA authorized and Ten Years studies have actually exposed no major troubles with Intacs and few client problems; however, since the procedure takes a lot more training than LASIK, there are less eye surgical treatment facilities using it. However, the Intacs internet site offers a checklist of experts in each state, too a couple of in Canada, Europe and Mexico.\nBecause many people do not intend to run the risk of LASIK and Intacs can not aid those with serious vision troubles, intraocular lens implants (IOL) are a new choice authorized by the FDA in 2004 to correct modest to serious nearsightedness. The Artisan lens, produced by Ophtec, is similar to the kind of lens dental implant used to recover vision complying with cataract eye surgery.\nThe new IOL, called the Craftsmen, is intended for just people that have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not replace the all-natural lens, but is put in front of it. The major issue found with the implant was the steady loss of endothelial cells in the corneas of individuals that got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are crucial in maintaining the cornea clear. A three-year research revealed a regular stable loss of endothelial cells of 1.8 percent a year. At this moment, no person could forecast whether this loss will certainly continue at the very same rate indefinitely, or even its impact on corneal function.\nTo lessen long-lasting impacts of the tool on the corneal endothelium, the FDA is needing that the brand-new lenses be identified to specify that they ought to only be dental implanted in people whose corneal endothelial cells are thick adequate to stand up to minor cell loss.\nA lot more significant problems were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up study of its dental implant patients to better evaluate the post-surgical incidence of cataract growth, retinal detachment and other sensory conditions.\nThe Craftsmen lens is intended to be an irreversible implant.Though it could be eliminated surgically, vision could not constantly return to just what it was prior to obtaining the lens. Because it does not influence astigmatism, clients with this issue might still call for glasses.","domain":"optical_engineering"}
{"url":"http://ngc1514.com/Celestron/photo.htm","date":"2018-10-21T23:10:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514437.69/warc/CC-MAIN-20181021224001-20181022005501-00127.warc.gz","language_score":0.9286092519760132,"token_count":320,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__43282595","lang":"en","text":"Photography with the C-8\nPhotography is an area in which I can not be a lot of help. I spent many nights trying my best to approximate the efforts of some of the astrophotographers with no success at all. It's a good thing to learn early that one does not have the patience to sit for hours at a guiding eyepiece just to turn out another out of focus and poorly guided image.\nDon't let my failure deter you if you have the urge to capture the beauty of the night time sky. Even though I don't use the stuff, I do have some of the basic photo-accessories as shown below.\nOn the left you will see a prime focus adapter. This screws onto the back of the C-8 and a t-mount ring (shown in the front) attaches your camera to the scope. In back is a tele-extender used for high magnification photography. It allows an eyepiece to be inserted for eyepiece projection planetary and lunar photography. On the right is another type of tele-extender. The one in the center allows moving the position of the camera in reference to the eyepiece and gives you variable magnification.\nHere is the variable tele-extender taken apart and showing the eyepiece. The C-8s' normal visual back is on the left. The eyepiece drops into the visual back and the tele-extender screws onto the threaded part of the back. Your camera and t-mount ring attach to the tele-extender.\nReturn to Accessories Page","domain":"optical_engineering"}
{"url":"https://shop-nl.blinkinlabs.com/collections/leds/products/3mm-ultra-thin-digital-led-strip-with-ws2812b-2020","date":"2023-09-30T06:22:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510603.89/warc/CC-MAIN-20230930050118-20230930080118-00744.warc.gz","language_score":0.6506486535072327,"token_count":184,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__141404541","lang":"en","text":"3mm Ultra Thin Digital LED Strip with WS2812B-2020,60LEDs/strip\nThis is 3mm wide and 1meter long LED strip with 60pcs of WS2812-2020package LED.\n- PCB type: Flexible pcb,black color\n- PCB size: 3mmX1meter\n- Mounting: tape\n- Waterproof level: IP20 non-waterproof\n- Connector type:JST SM-3p connector. Red cable is 5V, Green cable is data input, white cable is Ground.\n- LED spacing: 16mm\n- 5V power\n- 60 full-color RGB LEDs\n- LED type: WS2812\n- LED package:2020 (metric)\n- Compatible with WS2812/neopixel protocol\n- Pattern Paint color setting : RGB","domain":"optical_engineering"}
{"url":"https://adfluencer.io/canon-50mm-f1-8-stm-nifty-fifty/","date":"2022-09-25T05:33:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334514.38/warc/CC-MAIN-20220925035541-20220925065541-00398.warc.gz","language_score":0.9499198794364929,"token_count":1039,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__208275653","lang":"en","text":"Written by AdFluencer IO in Blogging\nMay 5 th, 2018\nThe 50mm f/1.8 STM follows on the footsteps of the extremely popular 50mm f/1.8 USM II lens. The latter, arguably the greatest selling lens ever to roll out of a Canon assembly line. Big shoes the new lens has to fill in and it does that with some degree of success.\nThe 50mm f/1.8 STM is a budget lens designed primarily for Canon’s full-frame DSLR systems. That said this lens will also work on Canon’s EF-S mount cameras (APS-C 1.6x crop systems) as well as film cameras.\nThere are two primary reasons you would want to buy this lens as opposed to something like an 18-55mm kit. The first is undoubtedly the wickedly fast f/1.8 maximum aperture. Maximum aperture ensures that the lens can let in a lot of light. How much exactly? A kit lens can shoot at a maximum of f/3.5 when it is set to its widest focal length. Compared to that the 50mm f/1.8 STM can shoot at two stops faster. That means at any given lighting condition and the same shutter speed, the 50mm f/1.8 STM will take in 4 times the amount of light that a kit lens will.\nTwo ways really. You can shoot at a faster shutter speed in low light situations and therefore avoid camera shake. Normally, when shooting in low light you either slow down the shutter speed or increase the ISO number.\nIn the first instance, you risk camera blur which results in blurry images. In the second instance, you risk losing details in the shadows and induce noise.\nA fast lens allows you to avoid both eventualities.\nSTM stands for Stepper Motor. This technology works much smoother than the original USM auto-focusing motor powered lens. There are too distinct choices here. One that is geared towards using a lens that locks focus fast, regardless of the associated jerky movement. These lenses are unsuitable for video work.\nThe other type of lens is the smooth focusing one. Like the 50mm f/1.8 STM. The fact that these lenses focus very smoothly means they are perfect for shooting videos.\nStill, on the subject of focusing, the 50mm f/1.8 STM has an electronically coupled focusing ring. Meaning, the focusing ring is electronically connected with the focusing motor. That also means if the camera isn’t turned on you won’t be able to focus manually.\nThere is a semblance of a manual focusing override. But you have to press and hold the shutter release half way to be able to focus manually.\nI said there are two primary reasons. Actually, there are three. The third being the price tag. You can’t hope to get a better piece of the optical tool at just $125 (or 100 £ depending on where you are).\nBuild quality is, to say the least – you get what you pay for. The lens mount is metal which is great. But there is an overgenerous amount of plastic used in the construction. This lens will not take too much abuse. There is no weather sealing either.\nThis lens comes with the older Super Spectra Coating (SSC) that is the precursor to the modern Subwavelength Coating that comes in more expensive lenses. Rounded 7 aperture blades make up the lens diaphragm which creates a nice bokeh.\nImage quality is the same as the performance of the older 50mm f/1.8 USM II. It’s no wonder as the same optics have been used in the new lens.\nCanon currently sells three versions of the 50mm prime. This being the only one that has the Stepper Motor auto-focusing technology. Though this is the ‘slowest’ lens of the three. But being less than one-tenth the price of the most expensive 50mm that Canon makes, it is certainly an option you cannot overlook.\nHaving said that the other two lenses that Canon sells are f/1.4 and f/1.2 respectively. With the last of the two being an L lens, which obviously means better build quality. None of the lenses come with image stabilization.\nSo, there are two ways of looking at it. If you are looking for a cheap 50mm lens that focuses smoother for video work, then go for the 50mm f/1.8 STM. Otherwise, if you have plenty of money to burn and need absolutely the best go for the 50mm f/1.2 L.\nThis post proudly presented by Photolancer Zone - Best Curated Photography\nWelcome to AdFluencer!\nIf you have amazing Followers, we have amazing Brands. AdFluencer has opportunities for all types of fun. Let's turn your little hobby into Big Bucks.","domain":"optical_engineering"}
{"url":"https://eeti.uga.edu/people_post/mable-fok-ph-d/","date":"2024-02-21T09:07:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00771.warc.gz","language_score":0.9065977334976196,"token_count":155,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__72217244","lang":"en","text":"Mable Fok, Ph.D\nDr. Mable Fok is currently an Associate Professor at the College of Engineering at University of Georgia. Her research lab – WAVE Lab, aims to bring fiber optics and photonics techniques to inter-disciplinary areas. Her current research interest includes soft robotics, bio-inspired photonics, fiber optic sensing, and microwave photonics. She has published over 200 journal and international conference papers and hold 4 US patents. Her work has been funded by National Science foundation (NSF), Defense Advanced Research Projects Agency (DARPA), and Oak Ridge Associated Universities. Dr. Fok is the recipient of the National Science Foundation CAREER award, University of Georgia Creative Research Medal, and Ralph E. Powe Junior Faculty Enhancement Award.","domain":"optical_engineering"}
{"url":"https://antelopemalloptometry.com/designer-eyewear/sports-eyewear/","date":"2023-12-01T02:53:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00895.warc.gz","language_score":0.9075556993484497,"token_count":507,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__15932671","lang":"en","text":"Are your glasses designed for use with sports? Are they shatter resistant? Do they fall of your face when you turn quickly? Your glasses should be specifically designed for sports use. They are a very important part of any sporting gear. Consider this:\n- Every 13 minutes a person with a sports related eye injury visits an emergency room.\n- Eye injuries are the leading cause of blindness in children.\n- More than 100,000 sports and recreation related eye injuries occur each year.\n- More than 90% of all eye injuries can be prevented with the use of appropriate protective eyewear. See your best with your newest prescription in your sports glasses and be comfortable and safe with the newest lens technologies. Just as many professional athletes now realize you should protect you or your child’s eyes with shatter resistant lenses and improve your eyesight with antiglare or improved contrast lenses.\nWe offer many different lens technologies to suite your needs:\n- Saftey lenses –polycarbonate or Trivex: Polycarbonate lenses are 12 times stronger than regular plastic and are used by NASA and the military as a safety material for eyewear, helmet goggles and aircraft windows.\n- We use special lenses ground on specially designed equipment for those form fitting frames that “wrap” around the face. The result: Your lenses look great in your frame and they don’t pop out. This allows people with higher prescriptions to use stylish custom sunglasses or recreation spectacles.\n- Tints: a multitude of tints for different sports includingpolarized for reducing glare of surfaces such as water.\n- Anti glare and reflection:Crizal with Scotchgard and Crizal Sun for the ultimate in reduced reflections, scratch resistance, cleanability.\n- Sports progressive Varilux Sport: specifically designed progressive addition lens to allow unfettered distance vision while still giving a usable reading section. For those over forty who need help reading up close.\nOur Sports Eyewear\nLiberty Opictal’s REC SPECS offer a complete line of frames specifically designed for all types of sports. REC SPECS offer the highest degree of customization and protection for your sport. So if you need protection for baseball, scuba diving or just dry eyes, REC SPEC has the design for you.\nOakley premium eyewear passes the protective eyewear ANSI Z87.1 standards. They have a wide selection of stylish eyewear for your sports eyewear needs.","domain":"optical_engineering"}
{"url":"http://manuelnhtc716.blog5.net/5290280/eye-surgery","date":"2018-05-23T21:58:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794865830.35/warc/CC-MAIN-20180523215608-20180523235608-00517.warc.gz","language_score":0.9536219835281372,"token_count":1305,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__56189","lang":"en","text":"Eye Surgical treatment has become a mainstream method of vision adjustment, and this post will certainly explain the advantages as well as drawbacks of 3 various methods being used to the clinical customer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and also is an eye medical system which completely deals with vision by removing a thin layer of the cornea. This procedure functions best on clients with modest to high degrees of myopia (nearsightedness), low to moderate levels of hyperopia (farsightedness) and astigmatism connected with nearsightedness, and that have thick corneas. It is one of the most popular medical vision adjustment approach.\nPeople with normal eye sight see objects clearly due to the fact that pictures are brought into a correct prime focus by the cornea and also lens of the eye. Ideally, the cornea's curvature is evenly matched to its size in a typical eye. People with astigmatism, nearsightedness or hyperopia have irregularly shaped corneas, so the things seen are not focused properly. LASIK modifications corneal form by specific removal of corneal tissue, as well as by doing so fixes the eyes' concentrating power.\nThere are, nonetheless, threats to LASIK eye surgical treatment.\nThere is a remote possibility of complete loss of vision. If this takes place, it is typically because the patient had a pre-existing condition which needs to have prevented the surgical procedure in the first place, such as maternity, cataracts, arthritis, diabetic issues, glaucoma, or lupus. People with big students are additionally bad candidates for LASIK. Dry eye disorder will certainly be intensified by this treatment.\nA couple of individuals complain that they permanently see \"ghost\" images, have obscured vision, lessened comparison and bad night vision. When LASIK was first introduced, 5% of clients had post-operative complaints; nevertheless, improvements in the procedure have created this price to go down to much less than 1% if LASIK is carried out by experienced practitioners and individuals are properly evaluated before surgery. If troubles do take place, they could often be resoved by a retreatment.\nFDA has approved LASIK laser eye surgery since 1998. While there are a lot of satisfied patients, there are nevertheless no long term researches about its results. Realize the constraints and the dangers of LASIK eye surgery before you sigh for the procedure.\nThough much less well known, these tiny implants could enhance vision in clients with mild to moderate nearsightedness without the danger of long-term eye damages intrinsic in the cells removal strategy of LASIK. Intacs are semi-circular disks implanted in the cornea which stretch it to think a flatter shape. Though slightly much less exact compared to LASIK, they are removeable and also exchangeable, so if the patient has an unforeseen over- or under-correction, the dental implant can be removed and another of a different size placed to get the desired adjustment. The implants lie at the edge of the cornea, so the central visual area is totally intact and undamaged, and also the toughness of the cornea is undiminished, making it a far better alternative for pilots as well as those that take part in contact sporting activities where eye injury is a possibility.\nIntacs are unsuitable for severe myopia as well as greater than small astigmatism (1.00 diopters), as the cornea could just be stretched so far. If the Intacs are eliminated, vision returns to its preoperative level. Apart from vision correction, Intacs are likewise used to treat keratoconus.\nIntacs are FDA authorized and also One Decade research studies have disclosed no major issues with Intacs as well as few patient complaints; nevertheless, due to the fact that the procedure takes extra training than LASIK, there are fewer eye surgery facilities offering it. Nonetheless, the Intacs website gives a list of specialists in each state, also a couple of in Canada, Europe as well as Mexico.\nSince lots of people do not wish to run the risk of LASIK and also Intacs can not help those with serious vision issues, intraocular lens implants (IOL) are a new option approved by the FDA in additional reading 2004 to deal with modest to extreme nearsightedness. The Artisan lens, manufactured by Ophtec, resembles the type of lens implant made use of to bring back vision complying with cataract eye surgical treatment.\nThe new IOL, called the Craftsmen, is planned for just clients that have 2.5 diopters or less of astigmatism.\nThe artificial lens does not change the natural lens, original site however is put in front of it. The major issue found with the implant was the stable loss of endothelial cells in the corneas of patients who got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are important in maintaining the cornea clear. A three-year research study showed a continuous constant loss of endothelial cells of 1.8 percent a year. Now, nobody can forecast whether this loss will proceed at the exact same price indefinitely, and even its influence on corneal feature.\nTo minimize long-lasting results of the gadget on the corneal endothelium, the FDA is calling for that the new lenses be labelled to specify that they need to only be implanted in people whose corneal endothelial cells are thick sufficient to endure small cell loss.\nExtra major difficulties were couple of: retinal detachment (0.6%), cataract growth (0.6%), as well as corneal swelling (0.4%). The FDA is requiring Ophtec to perform a five-year follow-up survey of its implant patients to much better assess the post-surgical occurrence of cataract development, retinal detachment as well as other ophthalmic illness.\nThe Craftsmen lens is intended to be an irreversible implant.Though it can be removed operatively, vision could not always return to exactly what it was before getting the lens. Due to the fact that it does not impact astigmatism, patients with this issue might still need glasses.","domain":"optical_engineering"}
{"url":"https://www.jackgreenengineering.co.uk/engineering-services/laser-cutting","date":"2024-04-16T22:32:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817112.71/warc/CC-MAIN-20240416222403-20240417012403-00374.warc.gz","language_score":0.9123163223266602,"token_count":427,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__149766705","lang":"en","text":"Laser cutting is a technology that uses a laser to cut materials. It is a versatile and precise method commonly used in various industries for cutting and engraving a wide range of materials.\nLaser-cutting technology has become increasingly popular in engineering and manufacturing due to its accuracy, speed, and ability to work with diverse materials.\nIn engineering and manufacturing, laser cutting has become a key technology for achieving high precision and efficiency in material processing, offering a range of possibilities for creating intricate components across different industries.\nHere are some key aspects of laser-cutting for engineering and manufacturing:\n- Laser cutting works by directing the output of a high-powered laser through optics. The laser beam focuses on a material's surface, causing it to melt, burn, or vaporise, leaving a high-quality finish.\n- The process is controlled by computer numerical control (CNC) systems, ensuring precision and accuracy in cutting.\n- Precision and Accuracy: Laser cutting offers high precision and accuracy, making it ideal for intricate designs and detailed cutting requirements.\n- The focused laser beam allows for fine cuts with minimal material wastage.\n- Laser cutting is a versatile process that can be used for cutting simple shapes, complex patterns, or detailed designs. It is also employed for engraving and marking surfaces.\n- Laser cutting finds applications in various industries, including automotive, aerospace, electronics, signage, architecture, and medical device manufacturing.\n- It is used for cutting components, prototypes, stencils, gaskets, and decorative items, among other things.\nThe laser cutter has a tolerance of +/- 0.1 mm.\nThe laser cutter can cut up to 4 mm for mild steel and 2.5 mm for stainless steel and titanium.\nA laser cutter can cut down to 0.05 mm.\nThe laser cutter can work with a sheet size of 1250 x 1250 mm.\nThe laser cutter cuts mild steel, stainless steel and titanium.\nFor more information about our Laser Cutting service:","domain":"optical_engineering"}
{"url":"https://macomputer.com.bd/product/infocus-in1004-3100-lumens-3lcd-xga-projector/","date":"2023-11-30T20:57:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100232.63/warc/CC-MAIN-20231130193829-20231130223829-00207.warc.gz","language_score":0.7772740125656128,"token_count":610,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__40637793","lang":"en","text":"|Display Type||LCD with Micro-Lens Array|\n|Resolution||XGA 1024 x 768|\n|Projection Distance||0.88 ~ 10.90 / 2.88 ~ 35.76|\n|Lamp Life||20,000 hours|\n|Interface||Input Sources: VGA, HDMI, Composite|\n|Power||Power Supply: 100 ~ 240 V AC; 50 ~ 60 Hz\nPower Consumption Max (W): 300\nPower Consumption Min (W): 150\n|Weight||Product Weight (Kilograms/Pounds): 3.1 / 6.83|\n|Dimension||Dimensions (W x H x D) (mm / in): 345 x 261 x 99 / 13.58 x 10.27 x 3.89|\n|Manufacturing Warranty||1 Year|\n|Parts Warranty||Lamp Warranty: 1000 Hrs|\nInFocus IN1004 3100 Lumens 3LCD XGA Projector\nThe InFocus IN1004 Projector features cutting-edge display technology! Display information from your Windows laptop or PC to the projector through the USB-C or USB-A connection using a USB cable. Advanced. LCD. Projection. InFocus introduces its newest LCD projector in over a decade. Of course, much has changed since InFocus introduced the first LCD over 25 years ago, but the company’s commitment to producing high-quality goods and supplying cutting-edge technology has not. This new affordable and bright LCD series, which is placed alongside our other Lamp, LED, and Laser models, comes packed with: up to 5000 lumens, a 50000:1 contrast ratio, signal inputs up to 3840 x 2160 (4K) @ 30Hz, and weighs only 3.3kg, making it incredibly easy to move around your home, office, or anywhere!\nSix-point pincushion, barrel adjustment, and LAN Display\nThe InFocus IN1004 Projector optical distortion algorithms and built-in image correcting software. Connect your projector and Windows device to the same local area network and use the network to send source content to the projector and onto the large screen. When no network is available, we also provide the option of displaying through USB to the projector’s RJ45 connector via cable.\nCapture, Display, and Optimal Contrast Ratio of a Logo\nThe IN1004 Projector from InFocus With our built-in picture capture tool, you may display your corporate logo or school mascot on your projector’s start-up screen background. The use of sophisticated Iris dynamically adjusts the iris settings, offering brightness optimization to best fit the presented material. To make the best use of the projector’s available light output, advanced iris darkens dark images and materials and opens up on bright ones. The resulting contrast levels are incredible. The InFocus IN1004 3100 Lumens 3LCD XGA Projector has a 01-year warranty.","domain":"optical_engineering"}
{"url":"https://www.tresjoliemedispa.com/co2-coolpeel-laser-skin-resurfacing","date":"2023-09-29T01:03:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510462.75/warc/CC-MAIN-20230928230810-20230929020810-00537.warc.gz","language_score":0.9229751229286194,"token_count":220,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__160239211","lang":"en","text":"TETRA- CO2 WITH COOLPEEL®\nCoolPeel is a new treatment that has virtually eliminated discomfort associated with fractional CO2 laser and reduced the downtime to as little as one day. The CoolPeel laser treatment uses the Smartxide Tetra laser, the latest and most advanced CO2 laser from leading laser company, DEKA.\nPatients of all ages are seeking fractional CO2 laser skin resurfacing. However, with today’s fast-paced lifestyles, everyone wants the results without the lengthy recoveries. The SmartXide Tetra CO2 laser has the ability to perform a broad range of treatments including a CoolPeel® treatment.\nProviders can easily select the precise power, density, and pulse durations needed to tailor and optimize treatments to fit your patients’ expectations.\nApplications of the Tetra CO2 laser:\nScars, including Acne Scars","domain":"optical_engineering"}
{"url":"http://www.lotusnet.vn/axis-m1031-w.html","date":"2019-09-18T23:51:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573385.29/warc/CC-MAIN-20190918234431-20190919020431-00210.warc.gz","language_score":0.8069061636924744,"token_count":112,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__127055018","lang":"en","text":"Small-sized indoor network camera. Fixed lens. 1/4\" progressive scan CMOS sensor. Connects over wireless LAN (IEEE 802.11g) or wired Ethernet. Multiple, individually configurable H.264, Motion JPEG and MPEG-4 Part 2 streams; max VGA 640 x 480 resolution at 30 fps. Two-way audio with built-in microphone and speaker. Video motion and audio detection. Passive infrared (PIR) sensor and white LED illuminator integrated. Includes stand and clamp for easy mounting, and power supply.","domain":"optical_engineering"}
{"url":"http://variscope.com/","date":"2018-02-19T01:59:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812306.16/warc/CC-MAIN-20180219012716-20180219032716-00219.warc.gz","language_score":0.940613865852356,"token_count":109,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__142748042","lang":"en","text":"Variscope microscopes are at the forefront of optical design and innovation. Rigorous research and testing has produced some of the finest microscopy instruments available. Each microscope is crafted to the highest standards to ensure outstanding clarity and functionality.\nOur microscopes are available exclusively through our authorized dealers to ensure that you receive the best service from trusted professionals. Every microscope is backed by a 5 year warranty.\nFor almost 10 years, Variscope has provided the best optical instruments available and that is why we are leaders in the world of microscopy.","domain":"optical_engineering"}
{"url":"https://support.nanit.com/hc/en-us/articles/360007272013-Nanit-Camera-Wall-Mount-Product-Details","date":"2023-12-09T01:40:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100781.60/warc/CC-MAIN-20231209004202-20231209034202-00562.warc.gz","language_score":0.730358898639679,"token_count":342,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__91391277","lang":"en","text":"Mount footprint on the wall (excluding the cable covers):\n4.2” in height x 3.3” in width (10.6 cm height x 8.3 cm width)\nTotal cable length: 14 feet (426.7 cm)\nTotal cable cover length: 10 feet (304.8 cm)\nTotal package weight: 2.5 lbs / 1.1kg\nAC Power supply\n0.4A (input), 5VDC 2A (output)\nHD Color with digital zoom, image sensor optimized for low light conditions\nField of view:\nMaximum 130-degree view with optimized image correction\nInfrared LEDs (850nm) with IR cut filter\nHD Video, H2.64 encoding\nAdvanced Encryption Standard (AES)256-bit symmetric-key encryption, Secure data transfer (TLS/SSL)\nTemperature & Humidity\nDiffused, ceiling oriented LED light with a soft glow.\nWi-Fi 802.11b/g/n/a 2.4 Ghz or 5 Ghz (WEP, WPA, WPA2 encryption supported)\nNanit works with high-speed internet connections.\nTo set-up you Nanit, you'll need a compatible iPhone, iPad, or Android device with Bluetooth 4.0\nFree Nanit app available for smartphones and tablets.\nIn the box\nOne Nanit camera, wall mount bracket, wall mount with a 14 feet (426 cm) power cable, 11 straight cable cover units, 2 corner cable cover units, one end cable cover unit, mounting screws and anchors kit, power adapter, mounting template, Quick Start Guide.","domain":"optical_engineering"}
{"url":"https://astronomyspot.com/telescopes/how-to-choose-a-telescope/refractor-telescope/","date":"2022-07-07T06:43:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104683708.93/warc/CC-MAIN-20220707063442-20220707093442-00662.warc.gz","language_score":0.918677031993866,"token_count":593,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__122696859","lang":"en","text":"A refractor telescope or refracting telescope, also known as dioptric telescope, is a type of optical telescope that uses a lens to form an image. This type of telescope has at least one primary lens and one lens at the eyepiece where the viewer sees the image. The objective lense refract the light penetrating through the device and converges straight from the objective lens to a focal point, giving a magnified view.\nRefractor telescopes are long, thin telescopes known for sharp, crisp, detailed, contrasty images and are best for viewing the moon and planets. A quality achromatic refractor of 60mm to 80mm aperture will make a fine starter scope. They are portable, maintenance free, and less expensive. A refractor is the scope of choice if you will be doing most of your observing from the city or suburbs, where the night skies are moderately light-polluted. A refractor telescope with bigger aperture will yield washed out and poor images as it will amplify the sky glow.\nThe refractor boasts of an optical system that is highly resistant to misalignment. Greatly reliable and very convenient to travel with, this telescope entails lesser cleaning as the lenses are sealed inside the tube.However, refractor telescopes are more expensive than reflector telescopes. The best for the eye is apochromatic refractor telescopes, but they are more expensive.\nIn the second half of the 19th century large refracting telescopes were very popular, the reflecting telescopes are preferred by the researchers. As refractor telescopes use lenses to collect and focus light, it is difficult to make large refractor telescopes as finely ground glass lenses are expensive and heavy. The Yerkes Observatory in Wisconsin is the largest refractor telescope ever made and has lenses that are 40 inches in diameter.\nRefracting telescope’s advantages:\n- The refractor telescopes are low in maintenance\n- The refractor telescope produces high-contrast, sharp images.\n- Due to air tight seal of a refractor telescope, the air currents does not affect the view.\n- The refractor telescope is ideal for long distance terrestrial viewing as well as viewing the planets, stars and other deep sky objects.\nThere are several disadvantages of this type of optical telescope:\n- This type of telescope costs more than the reflector and catadioptric telescope when comparing models of the same aperture size.\n- Due to the design of the telescope, the refractor telescope isn’t the best for viewing faint astronomical objects.\n- Although the images are clear, there may be unexpected color fringes around the objects in view.\n- Inexpensive models do not result in decent astronomical viewing as it lack the quality needed.\nDespite the disadvantages of these types of telescopes, they are the most user-friendly versions and would be best suited for amateur star gazers.","domain":"optical_engineering"}
{"url":"https://www.opt-bg.jp/company/index/376","date":"2024-04-14T18:04:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.19/warc/CC-MAIN-20240414161724-20240414191724-00382.warc.gz","language_score":0.7471581697463989,"token_count":212,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__129754198","lang":"en","text":"Stockholmer Str. 9 Jena Germany\nFounded in 2001, asphericon is one of the technology leaders in the field of aspheric optics and systems. By combining a worldwide unique CNC control technology with high-end manufacturing processes, asphericon routinely achieves unique levels of dimensional precision for optical components, assemblies and systems. The latest manufacturing technologies, continually evolving proprietary control software, world-class metrology equipment, and highly qualified employees ensure that asphericon can provide more than 800 customers worldwide with innovative solutions.\n- asphericon GmbH","domain":"optical_engineering"}
{"url":"https://draisinvision.com/2010/02/22/the-oct-is-here/","date":"2022-05-27T18:22:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662675072.99/warc/CC-MAIN-20220527174336-20220527204336-00215.warc.gz","language_score":0.9309086799621582,"token_count":458,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__124139982","lang":"en","text":"This past week we have received our newest addition to the Draisin Vision Group Family~ our OCT! Optical Coherence Tomography (OCT) is one of the latest and greatest types of imaging technology for the eye. OCT is used for taking cross-sectional pictures of the retina, optic nerve and cornea. Each of the ten layers in the retina can be detected. OCT allows us to measure the thickness of each layer to aid in the early detection and diagnosis of retinal diseases and conditions. It is used to diagnose and follow treatment in certain eye conditions and diseases. Such conditions include age-related macular degeneration, pre-retinal membranes, macular swelling, macular holes, cystoid macular edema, central serous retinopathy, glaucoma, and optic nerve damage. We pledge to stay on the forefront of our profession through the newest technology and education available and we are very excited to bring this advanced imagining to the Draisin Vision Group!\nWhat to expect at your visit with the OCT: The testing time is very short and non-invasive. You will be seated for the test facing the equipment, viewing at a small target in the equipment. We will use a special camera to take pictures of your inner eye. The images are transmitted to a computer for us to view and analyze.\nThe retina is a multi-layered sensory tissue that lines the back of the eye. It contains millions of photoreceptors that capture light rays and convert them into electrical impulses. These impulses travel along the optic nerve to the brain where they are turned into images. There are two types of photoreceptors in the retina: rods and cones. The retina contains approximately 6 million cones. The cones are contained in the macula, the portion of the retina responsible for central vision. They are most densely packed within the fovea, the very center portion of the macula. Cones function best in bright light and allow us to appreciate color.\nThere are approximately 125 million rods. They are spread throughout the peripheral retina and function best in dim lighting. The rods are responsible for peripheral and night vision. The OCT helps us to detect any type of disruption in the retinal layers secondary to pathology.","domain":"optical_engineering"}
{"url":"https://technoblogme.wordpress.com/2014/10/07/portable-laser-pens-that-can-seal-wounds/","date":"2018-05-21T10:40:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864063.9/warc/CC-MAIN-20180521102758-20180521122533-00013.warc.gz","language_score":0.9613814353942871,"token_count":584,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__84532264","lang":"en","text":"Technology is getting advanced day by day and that to not in a particular field ,but in various directions. The creators of existing products are either competing with he devices with the same functionality with slight different features or creating devices which you have never even dreamt of ! One of such technology from the latter category are “Portable laser pens that can seal wounds”! Unbelievable isn’t it? How can we have a laser pen that can heal wounds? Lasers are used not only to create wounds but also to heal them. It is being widely used as an alternative for traditional needle-and-thread-surgeries. Even in microsurgery\ntechniques there are chances of infections and scars. Scientists have been working on flesh-welding lasers over a decade. The first experiment for the doctors to implement the laser technique was: carbon-di-oxide lasers to seal wounds. But it involved a great risk as the temperature of the laser couldn’t be controlled. Sealing the wounds internal or external to the body can be achieved by “laser welding” Abraham Katzir, physicist at Tel Aviv University, with his team had devised a laser that heats the body tissues in a precise manner. The temperature can be set as required, reduced or increased appropriately. Earlier carbon-di-oxide lasers caused thermal damage to the delicate human tissues which caused the tissues to be either over heated or under heated. The group then created a pen-sized tool that uses optic fibers One fiber directs carbon dioxide-powered infrared laser to the wound with pinpoint precision, and another that leads from the pen to an infrared sensor, which measures the temperature and ensures that the temperature remains within the ideal range of 60 to 70 degrees Celsius. All that has to be done is, move the pen’s tip along the cut with the solder of water-soluble protein. Katzir says- “Our advantage is that we have developed optical fibers – we’re one of the very, very few groups in the world who have optical fibers that transmit IR radiation. We measure the infrared emitted from the spot and can know the temperature exactly.” This technique is well-known as Katzir’s laser technique which has been used in the surgical removal of gall bladder. It is also used for curing arthritis, migraine headaches, lower back pain, pressure sores, burns, swelling and the list goes on. Laser technology has also been applied to regenerate new cells and tissues. New laser techniques that reduce the amount of light to which the tissues are exposed during studies or procedures are making their way in the medical field. One such device, called the femtosecond laser, was approved by the FDA for eye cataract surgery in May 2010. Hence the laser techniques have been employed over a wide range in medicinal fields.\nBy: Sonali Jagdish","domain":"optical_engineering"}
{"url":"http://paxtoncghg579.fitnell.com/11674122/2-components-individuals-do-not-really-know-regarding-to-lasik-eye-medical-procedure","date":"2018-06-20T07:19:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863489.85/warc/CC-MAIN-20180620065936-20180620085936-00409.warc.gz","language_score":0.9563678503036499,"token_count":875,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__216516110","lang":"en","text":"The eye can be taken a look at with relative ease as to both its function and its structure. A functional assessment includes the capability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye may be checked in numerous ways. The patient may be asked to determine illuminated letter or things of differing sizes on what is referred to as the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye might be made in several methods. Tension within the eyeball is determined by a \"tonometer.\" In certain illness, especially in glaucoma, the stress in the eyeball is increased markedly.\nNevertheless, it ought to be well bore in mind that a patient with an eye problem might have other problems too. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can signal the doctor and the client to troubles in some disruptions of other parts of the body even before other symptoms provide themselves.\nConsequently, one's reliance on sight is stressed when one deals with a possible or momentary irreversible loss of this essential sense. When corrective measures are looked for, particular types of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgery is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgical treatment is another kind of vision correction. The only distinction is that with this type of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that people should know. Most likely, the main reason that this type of eye surgical treatment has ended up being well accepted is since the majority of its cases had actually achieved success.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is among the most sensitive parts of the eye, the majority of people say that the operation can be very risky.\nSimply puts, a basic error might almost cause an person's life time blindness. For this reason, it is important to think about many elements prior to deciding whether LASIK eye surgery is the best corrective step one needs to go through.\n2. It is not a best procedure\nLASIK eye surgery may fix your vision but it does not necessarily mean that it can give you a twenty-twenty. Even if statistical reports reveal that 70% of the clients might have 20/20 vision, this does not necessarily imply they have perfect vision also.\nOffered all this these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not constantly be the perfect eye surgical treatment the way the majority of individuals see it\nConversely, the examination of the structural part of the eye might be made in numerous methods. It pop over to these guys needs to be well kept in mind that a client with an eye problem might have other issues. Typically other physical conditions are primary and affect the eye as a consequence. The look of the eye can inform the client and the physician to problems in some disturbances of other parts of the body even before other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://arcilluminations.com/lighting-ideas/pixel-led/","date":"2023-12-07T20:27:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00113.warc.gz","language_score":0.9354432225227356,"token_count":1290,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__64472449","lang":"en","text":"LED technology’s evolution has led to better development in an intelligent lighting system such as LED Pixel or Smart RGB LED. This type of smart lighting has many uses and is widely produced all over the world. LED pixel has become an increasingly huge factor in many industries, including entertainment, appliances and gadgets, and many more. The advancement in LED technology is the key factor in market growth and development.\nToday, LED pixel or smart RGB light continues to evolve to cope with society’s advancements and provide us more efficient technology. This never-ending process of evolution had brought us This kind of lighting.\nWhat is a LED Pixel?\nLED Pixel is an array of LEDs; it consists of hundreds or thousands of LEDs connected to an integrated control chip. Digital controllers are used in LED lighting to control the LED individually or by a group. This controller enables the LED to create patterns, images, and video.\nWhat is a Pixel?\nA pixel is a picture element, and it is a tiny square of color. An array of LEDs in one panel produces a pixel. Thousands of pixel forms a digital image and pattern formally known as video. Each pixel has a specific number. The controller processes the pixel individually or by a group to produce the digitization process to produce digital images and turns them into a set of pixels that produces patterns and video images. Each square pixel represents a number, and the controller simply assigns the right color for each pixel. Basically saying it’s like a digital color by number. For example, if you look closely at a LED display like televisions, you’ll see a blurry square with a color in it. These are called pixel squares. Each pixel squares can be a million different colors.\nLED Pixel lighting an advanced smart lighting system\nLED pixel is an advanced technology that produces many magnificent things, especially in the entertainment industry. This advanced lighting continues to develop to achieve much greater heights. This advanced lighting system is used in many applications, including structural designs. LED pixel strips are popularly used in structural lighting design as decorative lighting. The ability to change the colors of these small devices is really something. This lighting system can create amazing patterns and digital images that are simply amazing. Multi-colored pixel led lights are being used to decorate structures and homes. LED pixel lights are also popular in high-class hotels, casinos, sports centers, and stadiums. Lastly, LED pixel lighting is commonly used in many LED display forms like a smartphone screen, monitors, televisions, and many more.\nWhat is RGB?\nRGB stands for red, green, and blue. This three-color is a color scheme that produces multi variations of colors. Red, green, and blue mixing together create another color. This type of light has many applications and is used in almost all types of displays, including LED displays.\nWhat are LED displays?\nLED short for light-emitting diode. When a voltage is applied to this small technology, they conduct illumination. Basically saying, led display is a flat panel that uses an array of LED as pixels to produce visual or video display. LED display is an array of LEDs that combines the three basic colors red, green, and blue (RGB) to visualize other colors. RGB display has many applications and is commonly used in the entertainment technology industry—they are used in Televisions, smartphones, monitors, and many more appliances and gadgets.\nLED pixel produces high-resolution displays because it has dense diode arrays of about thousands of diodes. More of this is the need to control illumination and the color cycle across millions of individual pixels. Thus, it allows it to render high-resolution displays.\nHow does a LED Display Works?\nHow does this small technology work? It’s an amazing thing how this small technology can produce patterns, images, and videos. There are many things that we don’t know how this thing works. An LED display produces video, but how? An LED display consisting of many LEDs closely placed together in one flat panel creates patterns and video. Thousands of small LEDs placed in one funnel, constantly mixing the three colors to produce wide ranges of color. These three primary colors (Red, Green, Blue) combine to form a Pixel.\nLED Display Lifespan\nAn LED display’s lifespan cannot be determined as many factors can affect its lifespan. However, with proper care and maintenance, LED display can certainly last up to 8-15 years. The environmental condition can also affect its lifespan, especially in extreme weather conditions. If these things are exposed for too long, they can malfunction or even be destroyed.\nLED Display Energy Cost-Effective\nLED technology is a highly efficient technology and doesn’t consume much more electricity than your ordinary bulb. An LED display is made out of an array of LEDs in one funnel, making it energy efficient. The energy consumes entirely depends on the type of display usage and brightness they emit.\nThere are many types of LED displays that are available in the market. It has many varieties and sizes that are used in many applications and structural lighting. Each LED displays power consumptions varies from its size and structure. For example, television and digital billboards consume power differently. Major factors affect how much power should be used in a LED display like brightness, resolution, and quality color and pixel.\nPixel LED lighting is used for?\nPixel LED has many applications, and they are mainly used today in LED displays and architectural lighting designs. Pixel Led lights are an advanced system of LED bulbs capable of changing colors connected that produce digital images. This small technology is used in many industries that produce as follows:\n- Structural Lighting\n- Hotels Lighting\n- Digital Billboards\n- Stadium Lighting\n- Office Tower Lighting\n- Bridges Illumination\nThe advancement in lighting technology has made multiple industries develop, especially in entertainment technology industries and sports industries.\nLed Pixel or Pixel Led lighting proves to be the best to use in many lighting applications. It’s very beneficial not only are they durable, eco-friendly, energy cost-effective, and small, but they also have many uses essential in developing our technology. All in all, LEDs have various uses in our modern technology to further enhance our daily lives. This small technology discovered by a Russian technician is probably one of the most useful inventions ever created.","domain":"optical_engineering"}
{"url":"https://embeddedhardwaredesign.com/stmicroelectronics-unveils-next-gen-multizone-time-of-flight-tof-sensor-elevating-human-presence-sensing-and-gesture-recognition/","date":"2024-04-19T19:24:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817442.65/warc/CC-MAIN-20240419172411-20240419202411-00429.warc.gz","language_score":0.8669741749763489,"token_count":1180,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__188728835","lang":"en","text":"In the latest breakthrough, ST has released its cutting-edge Next Gen Multizone (8×8) Time-of-Flight (ToF) Ranging Sensor VL53L8CX, achieving a significant leap in ranging capabilities. The VL53L8CX combines a cutting-edge VCSEL with two sophisticated metasurface lenses within an innovative, compact module. This integration expands its capabilities for diverse high-performance applications, including but not limited to low-power system activation, gesture recognition, robotics SLAM, liquid level monitoring, and numerous others.\nIn comparison to its predecessor, the VL53L5CX, the enhancements in this new sensor mark a remarkable advancement. Notably, these improvements enhanced the sensor’s resilience against ambient light interference, resulting in a remarkable extension of its maximum range under daylight conditions—from 170cm to an impressive 285cm. Additionally, a substantial reduction in power consumption is witnessed, plummeting from 4.5 mW to a mere 1.6 mW when operating in low-power mode.\nUnveiling the VL53L8CX: a groundbreaking 8×8 multizone Time-of-Flight (ToF) ranging sensor that revolutionizes performance, particularly in challenging ambient light conditions, while significantly reducing power consumption. Leveraging the cutting-edge STMicroelectronics FlightSense technology, this sensor is meticulously crafted to deliver unparalleled precision in ranging, extending its accuracy up to an impressive 400 cm, all within a wide 65° Diagonal Field of View (FoV). This innovation leverages a state-of-the-art VCSEL and sophisticated silicon-based meta-optics to propel the sensor’s performance to unprecedented heights.\nThe VL53L8CX sensor’s versatility extends its application horizon across various domains. In the field of mobile robots, particularly autonomous vacuum cleaners, this sensor plays a pivotal role in refining guidance capabilities. Imagine these robots navigating rooms with unparalleled precision, utilizing the sensor’s floor-sensing prowess to detect subtle variations for efficient cleaning. Its small object detection capability ensures the identification and avoidance of obstacles, allowing seamless movement through cluttered spaces. Moreover, the sensor’s cliff detection capability safeguards against accidental falls or mishaps, ensuring safe and reliable operation in multi-level environments.\nExpanding beyond robotics, the VL53L8CX finds relevance in diverse sectors. In the automotive industry, it can be instrumental in advanced driver-assistance systems (ADAS), aiding in object detection and collision avoidance. Additionally, in industrial automation, this sensor becomes a critical component for conveyor belt systems, enabling accurate object detection and tracking for efficient material handling.\nFurther applications emerge in the realm of smart devices. Picture smartphones equipped with this sensor for enhanced camera autofocus functionality, capturing sharper images by swiftly adjusting focus. Similarly, in smart home systems, the sensor facilitates gesture recognition for intuitive control of devices, adding a touch of futuristic convenience to daily life.\nIntroducing the cutting-edge next-generation Time-of-Flight (ToF) sensor, boasting remarkable enhancements in both power efficiency and distance-ranging capabilities. This advanced sensor introduces a multitude of features, including a dynamic multizone distance measurement function, available in either 4×4 or 8×8 independent zones.\nOperating in an autonomous low-power mode, this sensor offers programmable interrupt thresholds, empowering it to rouse the host system intelligently. Impressively, it delivers precise ranging capabilities of up to 400 cm, showcasing superior performance even in challenging ambient light conditions.\nThe sensor’s multitarget detection and distance measurement in each zone provide an intricate level of detail, further refined by histogram processing and algorithmic compensation, effectively mitigating cover glass crosstalk for unparalleled accuracy.\nEach zone is equipped with a motion indicator, offering real-time insights into target movements, enabling a comprehensive understanding of their motion patterns. With a remarkable frame rate capability of 60 Hz, this fully integrated miniature module boasts a wide 65° diagonal square Field of View (FoV), achieved through state-of-the-art diffractive optical elements (DOEs) enhancing both transmitter and receiver functionality.\nThe sensor’s receiving array comprises single photon avalanche diodes (SPADS), while being intelligently managed by a low-power microcontroller running optimized firmware. All this functionality is packed into a compact form factor measuring 6.4 x 3.0 x 1.75 mm, ensuring effortless integration into diverse systems.\nIts seamless integration is further facilitated by being a single reflowable component, operating with a 1.8 V core supply and 3.3 V AVDD supply, offering flexible interface voltage levels of 1.2 V or 1.8 V IOVDD. The sensor communicates effortlessly via I²C, supporting speeds of up to 1 MHz, or SPI, reaching impressive speeds of up to 3 MHz.\nMoreover, this sensor’s compatibility extends across a wide range of cover glass materials, and it excels even when hidden behind a dark cover glass, making it an ideal choice for applications where concealment is crucial.\nWith multitarget detection, motion indicators, and advanced compensation for cover glass interference, this miniature module offers a wide field of view and high-speed frame rates. Its compact size, flexible interface, and compatibility with various cover glass materials make it a versatile and easily integrated solution for diverse applications, including those requiring concealed installations.\nAs per ST’s latest update, The VL53L8CX is available now, housed in a 6.4mm x 3.0mm x 1.75mm leadless package, from $3.60 for orders of 1000 pieces.","domain":"optical_engineering"}
{"url":"http://taniyaindustry.tradeindia.com/uv-coater-machine-2937275.html","date":"2018-04-23T22:42:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946256.50/warc/CC-MAIN-20180423223408-20180424003408-00137.warc.gz","language_score":0.893359363079071,"token_count":155,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__63889381","lang":"en","text":"|Home||» Products||» UV Coating and Curing Machines||» UV Coater Machine|\nUV Coater Machine\nWe are an accredited supplier and manufacturer of high quality UV Coater Machine. This coater is widely admired for its optimum performance and is utilized for coating the boxes, papers and photos. This is manufactured by using the sophisticated methodology and excellent quality materials as per the industry norms. Ultra violet coating can be applied on plastic and glass to diminish the amount of ultraviolet radiation that passes through. Offered UV Coater Machine is accessible in diverse specifications in order to meet the varied requirements of the patrons.\n- High operational fluency\n- Photographic filters\n- Power efficient\n- Low maintenance\nTANIYA INDUSTRY All Rights Reserved.","domain":"optical_engineering"}
{"url":"https://www.autocareweek.com/aaa-deteriorated-headlights-produce-80-less-light-53156.htm","date":"2023-06-07T02:54:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653501.53/warc/CC-MAIN-20230607010703-20230607040703-00118.warc.gz","language_score":0.9558013677597046,"token_count":699,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__195053235","lang":"en","text":"New research from AAA shows that clouded or yellowed headlights generate only 20 percent of the amount of light that new headlights do. According to AAA, most headlights are made of plastic, and exposure to sunlight breaks down the plastic coating, causing discoloration that obscures the amount of light produced. Depending on where and how the vehicle is used, headlights can begin showing signs of deterioration as early as three years to five years, the association reports.\nGreg Brannon, AAA’s director of automotive engineering and industry relations, said headlights on U.S. vehicles — even when new — don’t produce a sufficient amount of lighting, “so any reduction in performance is a real safety issue.”\nThe headlight assemblies used in AAA’s testing were for the driver’s side of the vehicle. According to the association, it contracted an accredited testing laboratory with expertise in automotive headlights and conducted testing according to industry standards.\nAAA reports that headlights were tested according to FMVSS-108 standards with no modifications to the headlight assemblies under test or to the test procedures. The headlights were from two popular sedans, approximately 11 years in age. And, results from the degraded headlights were measured against new headlights to quantify the amount of light produced for each.\nAAA also examined the effects that replacing or restoring a headlight can have on improving the amount of light produced. Replacing headlights with OE parts was the most effective method to restore light output back to 100 percent, according to the association.\nAftermarket parts also performed well, AAA reports, restoring light output between 83 percent and 90 percent. However, the organization indicates that these did fail to meet certain requirements for light intensity and were found to be more likely to produce glare for oncoming traffic.\nRestoring headlights, while the most cost-effective option, offered less of an improvement in light output than replacement, according to AAA. Professional and DIY restoration returned light output back to approximately 70 percent, the association reports; however, both restoration methods produced more glare than is acceptable according DOT criteria.\nThe professional headlight restoration systems in AAA’s research used a power sanding technique to remove the original protective film from the headlight lens. The resulting scratched surface of the polycarbonate was then polished using increasingly finer grades of sanding discs, and a protectant film was applied to the entire surface of the headlight lens.\nAAA’s full methodology is available in the research report found here.\nCompounding the problem of driving with deteriorated headlights, AAA contends, is that U.S. headlights have shortcomings. Previous association research indicated that halogen headlights fail to safely illuminate unlit roadways at speeds as low as 40 mph, while high beam settings offer only marginal improvements. According to AAA, even the most advanced headlights tested illuminated just 40 percent of the sight distances that the full light of day provides.\nBrannon said: “Driving at night with headlights that produce only 20 percent of the light they did when new, which is already subpar, is a risk drivers shouldn’t take — especially when there are convenient and inexpensive solutions that can dramatically improve lighting performance.”\nAAA recommends that drivers check their headlights for changes in appearance, such as yellowing or clouding. And, if the bulb is difficult to see, it’s time to have the lenses replaced or restored, according to the association.","domain":"optical_engineering"}
{"url":"http://www.worldoptic.com/lenses/standard-plastic-cr-39-glasses.php","date":"2024-04-20T23:10:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00236.warc.gz","language_score":0.9560887813568115,"token_count":376,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203986059","lang":"en","text":"Plastic was first introduced to the optical lens industry as a laminate of glass lenses with the Motex lens in the 1930's. The Motex lens mimicked the technology used at that time on car windshield. Glass laminated with thin sheets of plastic helped prevent excessive splintering of glass in the event of an accident. The laminated glass lens was short lived, but paved the way for the Igard lens, the first true plastic lens. This lens was introduced by and English company named COIL (Combined Optical Industries Limited) and was made of PMMA (Polymerized Methyl Methacrylate). Besides the light weight factor, the Ingard lens turned yellow, scratched easily and were expensive. In 1947 Armolite introduced CR-39 lenses. CR-39 is a material that was derived for the military as durable light weight plastic used on military planes in WWII. CR-39 plastic is actually ADC (Allyl Diglycol Carbonate), invented by an Ohio based company named Columbia Southern Chemical Company (CSCC) a subsidiary of Pittsburg Plate Glass Company (PPGC). CSCC initiated a project named Columbia Resins and achieved its goal on the 39th attempt, hence leading to CR-39. Sola, Essilor, Armolite, Univis Lens Co. and 3M (Minnesota Mining and Manufacturing Company) are notable companies that helped to pave the way for the CR-39 lens.\nThe CR-39 lens has an index of 1.498 and has an Abbe Value of 58 with a specific gravity of 1.32 g/cm3.\nThe most available lens considering lens type and premium lenses.\nAlmost 50% lighter than Glass\nOne of the best and easiest mediums to tint\nLow index of refraction (not ideal for heavy prescriptions)\nNot as scratch resistant as glass","domain":"optical_engineering"}
{"url":"https://data-1.science/physicists-propose-superabsorption-of-light-beyond-the-limits-of-classical-physics/","date":"2022-09-29T02:24:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335303.67/warc/CC-MAIN-20220929003121-20220929033121-00373.warc.gz","language_score":0.932751476764679,"token_count":241,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__272025826","lang":"en","text":"Physicists propose superabsorption of light beyond the limits of classical physics\nIn one potential method to realize superabsorption, a superabsorbing ring absorbs incident photons, giving rise to excitons. Credit: Higgins, et al. (Phys.org) —In a well-known quantum effect called superradiance, atoms can emit light at an enhanced rate compared to what is possible in classical situations. In natural systems, light emission dominates over light absorption, which is why superabsorption has not yet been observed. Eventually, harvesting sunlight in a highly efficient way might one day be possible using superabsorbing systems based on our design, but a more immediate application would be building an extremely sensitive light sensor that could form the basis of new camera technology, said coauthor Simon Benjamin, Professor at Oxford University. We are working on an alternative scheme for quantum enhanced light absorption, which uses what’s called a ‘dark state’ as an efficient means of extracting energy from light, and is similar to what happens in photosynthesis, which is in contrast to superabsorption, which is very different to how natural light harvesters work, Higgins said.","domain":"optical_engineering"}
{"url":"http://xzessaysguk.orlandoparks.info/automatic-street-light-controller-essay.html","date":"2018-10-22T17:06:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583515352.63/warc/CC-MAIN-20181022155502-20181022181002-00179.warc.gz","language_score":0.9029902219772339,"token_count":834,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__181515154","lang":"en","text":"Arduino based led street light auto intensity control the main devices and elements required to implement an automatic street light system to control the. One of the disadvantages of an automatic street light is thatsometimes it does not turn off when it should. Papers which were related to field of lighting system, i found that there are papers only about street light system and that too most of them are passive infrared receiver based and few are ldr based but they are controlled by means of timers and analog circuits. Automatic street light control i have done a project of automatic street light controller using photo transistor essay on science advantages and. This is done by using automatic street light control system so, the ambiance of light is checked and lights are turned on when it is dark and turned off during the day.\nPhilips lighting lighting conventional lighting white papers connect new and existing street lights quickly and easily automatic,. Automatic street light controller introduction: automatic streetlight needs no manual operation for switching on and off when there is need of light. Controls the street light on/off conditions 1 8051 micro controller unit keil compiler this project of automatic street lights is a cost effective, practical.\nTraffic control in the us vs traffic in kinshasa essay - in the united states, traffic control as we know it primarily consists of road signs, traffic lights, cameras, and police officers ensure that vehicle drivers, motorcyclists, bicyclists, and trucks are following the laws so that all can have a safe trip while on the road. Automatic street light control introduction to embedded systems an embedded system can be defined as a computing device that does a specific focused job. Automatic street light controller essay sample 1 introduction automatic street light control system is a simple and powerful concept, which uses transistor as a switch to switch on and off the street light automatically. Automatic street light controller circuit using relays and ldr did you ever think that how the street lights automatically turn on in the night and turn off automatically at morning. The application of solar powered led street lighting • charge controllers and other electronics need to be as efficiency as possible to maximize the benefits.\nManufacturer of automatic street light controller - street light controller, scada street light automation controller, high mast light controller offered by instruments universal, vadodara, gujarat. 433 design of new intelligent street light control system in china, the methods of time-control, optical-control and time-optical-control are in common used to. Automatic street light controller using pic16f877a to control the led intensity please upload ieee papers of automatic staircase lighting using pir sensor ram. Automatic street light control using ldr literature survey of automatic street light on and off control using download journal papers on new techniques of. Automatic street light control - report & circuit diagram automatic street light control abstract : automatic street light control system is a simple yet powerful concept, which uses transistor as a switch.\nProject report automatic street light control project report automatic street light control papers for 2017 03 24 electrical technology 7th edition electrical. Automatic street light control system is a simple and powerful concept, which uses transistor as a switch to switch on and off the street light automatically. Fig 4: project on automatic light system future scope the above project we can develop solar street light system with automatic street light controller the system can be powered from a battery, which can be charged during day time by harvesting the solar energy through a solar cell.\nLiterature review on automatic street light control texas oxnard american essays apa format new jersey consumer behavior chapter 3 market segmentation edit essay on traditional for $10, 3 line printable writing paper, essay on. This ppt is on the topic of :automatic street light control using ir sensors tq. We are discussing about solar led street light with auto intensity controlthis street light is street light with automatic intensity control[2. An introduction: needs no manual operation for switching on and off when there is a need of light it automatically switches on when darkness rises to a certain level then sensor circuit gets activated and switches on and when there is other source of light ie daytime, the street light gets off.","domain":"optical_engineering"}
{"url":"http://www.zpenergy.com/modules.php?name=News&file=print&sid=3661","date":"2018-11-21T00:00:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746847.97/warc/CC-MAIN-20181120231755-20181121013755-00434.warc.gz","language_score":0.9156606793403625,"token_count":384,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__21338689","lang":"en","text":"Scientists can now “squeeze” light\nDate: Sunday, November 01, 2015 @ 01:47:11 EST\n(via Keelynet.com) Have you ever wondered why we don’t use light to transmit messages? Nothing can travel faster than the speed of light, but while we use light to carry signals along fiber optic cables, we use electrons to process sound and information in our phones and computers.\nThe reason has always been because light particles–photons—are extremely difficult to manipulate, whereas electrons can be manipulated relatively easily.\nThe physicists, led by Professor Eric Mazur, have created a material where the phase velocity of light is infinite. Their results were published in Nature Photonics on Oct. 19th. “The phase speed is infinite—much larger, infinitely larger than the speed of light,” Mazur tells Quartz.\nThis doesn’t mean light itself is traveling faster than the speed of light, which would violate the laws of relativity. “Phase velocity” refers to the speed of the crest of waves that ripple out when light strikes a material. The Harvard scientists created a material that allows these wave crests to move infinitely fast.\nThis is a strange thought to wrap your head around, and means the crests of the waves are oscillating through time, but not space. Under these peculiar conditions, the Harvard scientists found that it’s easy to manipulate the photons, squeezing them down to the microscopic scale and turning them around. In other words, we can treat photons in the same way we currently manipulate electrons...\nFull article: http://www.keelynet.com/news/102815p.html\nNature Photonics : http://www.nature.com/nphoton/journal/v9/n11/full/nphoton.2015.198.html","domain":"optical_engineering"}
{"url":"http://www.emdgroup.com/emd/media/topics/lc.html","date":"2017-05-24T23:43:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607871.54/warc/CC-MAIN-20170524230905-20170525010905-00396.warc.gz","language_score":0.8347085118293762,"token_count":232,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__152218796","lang":"en","text":"Windows that automatically darken and eliminate the need for blinds? Our liquid crystal technology makes it possible. So far, their main uses have been in television displays and smartphones. But in the future, we will produce modules for liquid crystal windows. At the same time, innovations continue to improve and enhance classic displays. New quantum materials can make displays even brighter while consuming less power. That's why we're investing further here as well.\nProduction unit for liquid crystal window modules\nWe aim to further expand our market and technology leadership in liquid crystals and are deploying our expertise in application areas beyond displays. That’s why we’re investing in a production unit for switchable glass modules featuring LC technology. These modules are the prerequisite for switchable windows that steer the amount of light entering a building depending on the degree of solar radiation.\nQuantum materials for the display industry\nIn order to supply our display industry customers with innovative quantum materials for displays with even better brightness and lower power consumption, we have entered into a license agreement with Nanoco.\nTel: +49 6151 72 7144\nFax: +49 6151 72 3138","domain":"optical_engineering"}
{"url":"https://internetprotocol.co/hitech/2023/06/09/apple-unveils-its-new-ar-headset-vision-pro/","date":"2024-04-25T07:51:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00621.warc.gz","language_score":0.9152553677558899,"token_count":455,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__40515511","lang":"en","text":"In a highly anticipated event at WWDC 2023, Apple has finally unveiled its latest innovation, the Vision Pro, an advanced augmented reality (AR) headset. This cutting-edge device is set to revolutionize the way users experience both the real and digital worlds.\nThe front portion of the headset is made of glass, while the frame is constructed from aluminum, ensuring a sleek and durable design. Packed with sensors, hardware cooling systems, and state-of-the-art components, the Vision Pro guarantees an immersive and comfortable experience. The strap features a fabric lining and the device is capable of adapting to various facial shapes and head sizes.\nPowering the system is Apple's latest M2 chip, complemented by a new chip called the R1. Working in synergy, these processors deliver exceptional performance and efficiency, providing users with seamless interactions and impressive graphics.\nThe display lenses of the Vision Pro have been developed in collaboration with Zeiss, featuring special optical inserts that magnetically attach to the lenses, accommodating individuals who wear glasses.\nDespite its advanced capabilities, the headset remains lightweight, drawing power from a separate battery pack. Running on the visionOS, the Vision Pro operates on a combination of the R1 processor and M2 chip. Equipped with various sensors, including LiDAR, 12 cameras, and five additional sensors, the headset offers a comprehensive range of functionalities.\nThe Vision Pro's display boasts an impressive 23 million pixels, promising stunning visuals and delivering video content in 4K resolution, according to company claims.\nThe device primarily positions itself as an AR headset, seamlessly blending the real and digital worlds. However, it also offers the flexibility to switch between augmented and full virtual reality experiences using a dial.\nInterestingly, the Vision Pro does not require a separate controller. Instead, users can navigate and interact with the device entirely through eye tracking, hand gestures, and voice commands, including eye and finger movement tracking.\nWith a price tag of $3,499, the Apple Vision Pro AR/VR headset represents a significant investment for users seeking the next level of immersive technology. This innovative device is set to redefine the boundaries of augmented and virtual reality experiences, propelling Apple further into the forefront of cutting-edge technology.","domain":"optical_engineering"}
{"url":"https://www.morningstarco.com/gradient-crop-yield-solutions-implements-satellite-crop-imagery/","date":"2023-11-30T00:39:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.15/warc/CC-MAIN-20231130000127-20231130030127-00639.warc.gz","language_score":0.9493274092674255,"token_count":441,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__253069555","lang":"en","text":"The use of crop aerial images to improve agricultural practices is becoming increasingly relevant worldwide. A few years ago, crop images were primarily captured using drones and airplanes; however, these technologies have some limitations with the cost and frequency as you cover more extensive areas. One solution to overcome those limitations is the use of satellite images. In the past, the resolution of satellite images was not comparable to the resolution provided by drones and airplanes. However, image resolution has improved significantly in recent years, and satellite images are now close to 10 and 3 meters per pixel.\nMorning Star is now offering high-definition satellite images through Gradient Crop Yield Solutions as part of its agricultural platform, and in 2022 it plans to cover around 23,000 acres across the state. Gradient’s partnership with EOS, a satellite images service provider, made it possible to deliver Morning Star tomato growers with more frequent, high-quality crop images. The algorithms built into the platform include NDVI, NDRE, MSAVI, and several others that provide valuable information related to plant vigor, nitrogen content, maturity, crop consistency, disease/insects’ presence, water stress, etc.\nThe most common satellite used is Sentinel 2, which provides images up to three times per week. Like any other technology, satellite images also have some limitations, primarily related to weather conditions. For example, the quality and frequency of images can be limited mainly by clouds and smog, which prevents the growers from seeing the state of the crop during specific dates. However, the high frequency of images every two to three days makes it possible to achieve a high-quality image at least once a week when weather conditions are more favorable.\nWe believe that satellites are the aerial imaging technology of the future for agriculture, especially due to its lower cost and the frequency of images. Precision and resolution will continue to improve rapidly to the point where it is challenging to distinguish satellite from drone or airplane images. Morning Star sees this technology as the future of crop imagery and will continue to provide its Gradient contracted growers with the latest advances so they may improve their decision-making process with the end goal of improving quality and overall profitability.","domain":"optical_engineering"}
{"url":"https://daneshyari.com/article/733236","date":"2023-06-02T18:00:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648850.88/warc/CC-MAIN-20230602172755-20230602202755-00187.warc.gz","language_score":0.8222024440765381,"token_count":430,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__225379052","lang":"en","text":"|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|\n|733236||1461612||2017||8 صفحه PDF||سفارش دهید||دانلود رایگان|\n• FEA provides possibility for predicting the thermal distribution for CJ and LTJ modes.\n• FEA temperature values show reasonable agreement with experimental measurements.\n• Absence of excessive polymer defects of dissociation and charing in such type of joining.\n• IR thermography images give false readings and distorted images in LTJ mode.\nThis work is concerned with building a three-dimensional (3D) ab-initio models that is capable of predicting the thermal distribution of laser direct joining processes between Polymethylmethacrylate (PMMA) and stainless steel 304(st.st.304). ANSYS® simulation based on finite element analysis (FEA) was implemented for materials joining in two modes; laser transmission joining (LTJ) and conduction joining (CJ). ANSYS® simulator was used to explore the thermal environment of the joints during joining (heating time) and after joining (cooling time). For both modes, the investigation is carried out when the laser spot is at the middle of the joint width, at 15 mm from the commencement point (joint edge) at traveling time of 3.75 s. Process parameters involving peak power (Pp=3 kW), pulse duration (τ=5 ms), pulse repetition rate (PRR=20 Hz) and scanning speed (v=4 mm/s) are applied for both modes.\nJournal: Optics & Laser Technology - Volume 87, January 2017, Pages 64–71","domain":"optical_engineering"}
{"url":"https://performanceeyecare.com/blue-light-filter/","date":"2020-05-27T22:17:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347396163.18/warc/CC-MAIN-20200527204212-20200527234212-00223.warc.gz","language_score":0.9095631241798401,"token_count":335,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__206577646","lang":"en","text":"What is Blue Light and Does it Harm Our Eyes?\nBlue Light Filter\nBlue light is the color of the light spectrum that is visible to the human eye. Not all wavelengths of blue light are harmful to the body. Our bodies need some blue light to regulate our circadian rhythm and to elevate our mood and overall well-being. The largest source of blue light is the sun, so wearing sunglasses while outdoors is very important, especially for children.\nThe effects of high energy visible, HEV, blue light are now being researched more in depth due to how much exposure we receive from digital devices that emit artificial blue light. Consistent exposure to this light without protection can cause cataracts and changes in the macula, possibly leading to macular degeneration. Studies also show that too much exposure to blue light can also cause eyestrain, fatigue, headaches and the disruption of the body’s natural sleep cycle.\nAt Performance Eyecare, we work hard to utilize the latest in technology to provide our patients the best vision and to prevent vision loss over the years. If you or your children are exposed to significant amounts of blue light, we recommend a blue light filtering feature for your eyeglass lenses. Our blue filter lens material is virtually clear, not tinted yellow! If you opt for a blue light anti-glare you will notice a blue shimmer, which is indicative of the blue light bouncing off the lenses. Blue light material can be combined with the blue light anti-glare for additional blue light protection. We also recommend polarized lenses for sunglasses and Transitions for clear lenses when requested, which block additional high energy blue light.","domain":"optical_engineering"}
{"url":"https://en.pinkoi.com/product/q5JewvLX","date":"2020-06-05T13:25:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348500712.83/warc/CC-MAIN-20200605111910-20200605141910-00553.warc.gz","language_score":0.8908739686012268,"token_count":146,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__44769519","lang":"en","text":"When the O is lit, the thin and frameless light-emitting surface has a silky texture, and the light board is clear and light after the light is turned off. O-deep LED chips are evenly dispersed through millions of micro-curves on the surface of the sheet-type light board to create a unique, smooth and glare-free comfort light. O Each type of light-emitting unit is detachable, making the package simple and easy to install and maintain. O Excellent heat dissipation and power supply design, effectively extending the life of the lamp and ensuring safe use. O CE certified, in accordance with IEC/EN 62471 matt biohazard, no UV blue light hazard rating.","domain":"optical_engineering"}
{"url":"https://www.myhealthytech.com/en/techlogoly-gear/267126.html","date":"2022-11-30T07:59:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710733.87/warc/CC-MAIN-20221130060525-20221130090525-00300.warc.gz","language_score":0.9389455318450928,"token_count":672,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__23988542","lang":"en","text":"How to tell if you have a fiber optic connector.\nThe first step is to identify whether or not your connector is actually a fiber optic connector. Fiber optic connectors come in a variety of shapes and sizes, b...\nIf you own or work with fiber optic equipment, then you likely know the importance of keeping your connectors in top condition. Fiber optic connectors are a crucial part of the network and can easily become damaged if not cared for correctly. Here we will discuss how to tell if you have a fiber optic connector and what steps to take if it is in poor condition.\nThe first step is to identify whether or not your connector is actually a fiber optic connector. Fiber optic connectors come in a variety of shapes and sizes, but all share one common characteristic- they are made of glass. If your connector is made of plastic, metal, or another material, then it is not a fiber optic connector and should be treated as such.\nThe next step is to inspect the connector for signs of damage. If the connector has been bent, crushed, or otherwise damaged, then it should be replaced. On the other hand, if the connector appears to be in good condition, then it can be cleaned and/or restored. Cleaning may require removal of dirt and dust, while restoration may require replacement of parts that have been damaged.\nIf your connector is still in need of repair, then it should be\nIf you're like most people, you probably just assume that fiber optic connectors are incredibly durable and practically bulletproof. But in reality, fiber optic connectors can be susceptible to damage if not properly cared for. Here's how to tell if you have a fiber optic connector that needs to be polished or cleaned:\n-If the connector has been heavily used and there are visible scratches or dents on it, it likely needs to be polished.\n-If the connector is dirty or has built up debris, it may need to be cleaned.\nIf you have a fiber optic connector, it will probably look like a small, black box with a lens on one end and a connector on the other. Fiber optic connectors are used in a variety of industries, including telecommunications, aerospace, and automotive. If your fiber optic connector is damaged or not working properly, you can fix it by following these steps:\n1. Remove the connector from the fiber optic cable.\n2. Clean the connector and the fiber optic cable with alcohol or a cleaning solution.\n3. Dry the connector and the fiber optic cable with a cloth.\n4. Apply a light coat of silicone sealant to the inside of the connector cap.\n5. Reattach the connector to the fiber optic cable.\nIf you are having trouble with your fiber optic connector, it is important to first determine if the connector is faulty. The easiest way to do this is to shine a light through the connector and see if you can see the light reflecting back. If there is an issue with the connector, it may need to be replaced.\nIf you're looking for a quick and easy way to determine if your fiber optic connector is in good shape, try the following test: gently rub the connector's metal contacts with your finger. If there's no resistance, the connector is probably good. If there is some resistance, it may be time for a cleaning.","domain":"optical_engineering"}
{"url":"https://cults3d.com/en/blog/articles/disney-a-cree-des-yeux-ultra-expressifs-imprimes-en-3d","date":"2021-09-23T14:43:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057424.99/warc/CC-MAIN-20210923135058-20210923165058-00357.warc.gz","language_score":0.9574031829833984,"token_count":178,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__259739112","lang":"en","text":"Disney has created ultra-expressive eyes printed in 3D\nHowever realistic they may be, toys always have a disadvantage compared to their animated version: they are less expressive because by nature they are frozen. To remedy this problem, Disney Research and Carnegie Mellon decided to tackle the most expressive part of the characters, their eyes. They worked closely together on a new technology called Papillon that uses 3D printed optical fibers to create eyes capable of a multitude of expressions. These new kind of eyes use the optical printing technology developed by Disney. Constructed from a bundle of 3D printed optical fibers that bend and direct light to the surface of the character's eye, much like a video projection. A technology of the future that seems to be adaptable to many other sectors and which, once again, is based on 3D printing.\nPage translated by automatic translation.\nSuggest a better translation","domain":"optical_engineering"}
{"url":"http://depts.washington.edu/cidb4bio/sff.shtml","date":"2018-01-22T10:26:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084891277.94/warc/CC-MAIN-20180122093724-20180122113724-00082.warc.gz","language_score":0.8207190632820129,"token_count":238,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__176474151","lang":"en","text":"Stopped Flow Fluorescence\nStopped-Flow fluorescence or absorbance measurements provide a method to monitor kinetics of molecular interactions. These methods yield rate constants for conformational changes or unfolding of macromolecular complexes, ligand binding, ligand dissociation, or catalysis on the millisecond timescale.\nThe Applied Photophysics SX20 is equipped with a 150W Xenon arc lamp suitable for Visible and near-UV measurements. Three detectors are installed: a fluorescence Photo Multiplier Tube (PMT), an absorbance PMT, and a Photo Diode Array (PDA) detector. The diode array feature of this instrument allows the acquisition of the entire absorbance spectrum every 2msec.\nVisit the vendor at http://www.photophysics.com/sx20.php\nEquipment details are also available.\nPlease acknowledge all work done on core facility instruments by citing the Analytical Biopharmacy Core, its contributing scientists, the Center for Intracellular Delivery of Biologics and the Washington State Life Sciences Discovery Fund. Core personnel directly involved in performing and designing experiments should be considered for authorship.","domain":"optical_engineering"}
{"url":"https://www.membrana.org/artists-projects/richard-whitlock/","date":"2022-11-30T07:16:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710733.87/warc/CC-MAIN-20221130060525-20221130090525-00305.warc.gz","language_score":0.9432337880134583,"token_count":156,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__109771428","lang":"en","text":"Angles of vision can be explored beyond the normal reach of the human eye or the camera lens.\nDigital imaging may have tied us to the computer keyboard, but it allows us to recuperate for photography the freedom and control that painters and draughtsmen have always had when reconstructing space on a flat surface. Angles of vision can be explored beyond the normal reach of the human eye or the camera lens. For the last few years I have concentrated in particular on the application of orthographic projection to photographic images, both moving and still. I have found that removing the conventional perspective has the effect of defamiliarising and enriching what we see: objects seem to pass directly into memory not as images but as realities.","domain":"optical_engineering"}
{"url":"https://wikipedeals.com/products/waterproof-hd-monocular-telescope","date":"2019-03-27T03:24:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912207618.95/warc/CC-MAIN-20190327020750-20190327042750-00435.warc.gz","language_score":0.8470829725265503,"token_count":346,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__48628382","lang":"en","text":"Get 16x High Quality magnification with this High Definition Monocular Telescope. This set of high end monocular telescope lets you experience watching magnificent sceneries and wildlife in action from afar.\n16x52 High-Def Magnification allows you to zoom in 16x for clear, bright and vivid visuals through its 52mm objective wide lens.\n- Built with Premium BAK 4 Prism for higher refractive index that lets you watch from afar with crisp and sharp images.\nFully Multi-coated Lens Coating for superior light transmission - makes it anti-reflective and protects your vision from bright sunlight glares\n- Using a smartphone adapter and holder enables you to connect the monocular to your phone so you can view directly on your screen, too.\n- Engineered as an extra durable and all-weather gear, it is waterproof, dust-proof and shockproof and has an ergonomic anti-slip design that makes it an ideal outdoor adventure gear.\nIdeal for the hardcore outdoor and wildlife enthusiast - it's perfect for birdwatching, hunting, hiking, mountaineering, surveillance and traveling. Enjoy observing wildlife and watching breathtaking sceneries wherever and however far you are!\nMagnification: 16 x 52 High Definition\nLens Diameter: 52mm\nBody Material: Rubber, Metal, Glass\nLens Prism Material: BAK-4\nField of View Scope: 98M/8000M\nField of View Angle: 5.5°\nProduct Size: Approx. 155x52mm / 6.10x 2.05 inches\n- 1 x Monocular\n- 1 x strap\n- 1 x lens wiping cloth\n- 1 x cloth bag\n- 1 User Manual","domain":"optical_engineering"}
{"url":"https://search.credoreference.com/content/topic/stroboscope?locale=fr","date":"2019-12-09T08:36:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540518337.65/warc/CC-MAIN-20191209065626-20191209093626-00279.warc.gz","language_score":0.9400286674499512,"token_count":347,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__36473692","lang":"en","text":"(strŏb'Әskōp), optical instrument for making a moving object appear to be slowed down or stationary. This effect is created by interrupting the observer's view so that the object is seen only at regularly spaced intervals rather than continuously. In its simplest form the stroboscope is a rotating disk; along its edge are evenly spaced holes through which the moving object is observed. If the object's motion is cyclic, the speed of the disk can be synchronized with it so that the object always appears in the same position when viewed through one of the holes. During the time that a solid area is blocking the line of sight, the persistence of vision enables the eye to retain the image previously seen, while the object moves to the same or a similar position by the time the next hole is in front of the eye. The effect is thus one of a stationary object.\nIf the stroboscope is not quite synchronized with the object's motion, the object will appear to move slowly either backward or forward, depending upon whether the stroboscope's rotation is too fast or too slow. For more accurate observation a flashing light (stroboscopic light) is used instead of a disk. When used in conjunction with a camera a stroboscopic light can also be used to study motion that is not cyclic, e.g., a speeding bullet; the resulting photograph shows a series of still images whose separations are proportional to the object's speed.\nThe stroboscope was invented and improved upon by H. E. Edgerton starting in 1931. It has various uses in scientific research, teaching, and industry, where it is used to study stresses on parts of machines while in motion.","domain":"optical_engineering"}
{"url":"http://www.adlppack.com/producten/bottle-inspection-system/","date":"2017-07-27T06:48:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549427749.61/warc/CC-MAIN-20170727062229-20170727082229-00403.warc.gz","language_score":0.8701457381248474,"token_count":161,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__83718379","lang":"en","text":"The simple and easy-to-use Bottle Inspection Station uses precision optics and high-resolution cameras to take all measurements automatically; eliminating operator error and making the readings highly accurate and repeatable.\nSimply place the bottle-can or plastic preform in the designated area within the robust unit and begin measurement with a push of a button. The container is rotated automatically, and all measurements are taken in a matter of seconds.\nCharacteristics Measured include: Can Height; Skirt Height; Inner and Outer Curl Diameter; Thread Height; Outer Thread Diameter; and Outer Skirt Diameter.\nMeasurement results are automatically transferred to a plant-wide data collection system, like our Visionary QC software, or the Bottle Can Inspection Station may be used as a stand-alone measurement tool.","domain":"optical_engineering"}
{"url":"https://bioanalysis.in/tertiary-structure-analysis-by-fluorescence-spectroscopy/","date":"2024-02-22T11:49:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00580.warc.gz","language_score":0.8495081067085266,"token_count":484,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__160691952","lang":"en","text":"Fluorescence spectroscopy (also known as fluorometry or spectrofluorometry) is a type of electromagnetic spectroscopy that analyzes fluorescence from a sample. Fluorescence is a photon emission process that occurs upon molecular relaxation from an electronically excited state to an electronic ground state. Fluorescence spectroscopy is widely used in Biochemical research.\nINTRINSIC PROTEIN FLUORESCENCE\n- The amino acid tryptophan has the strongest fluorescence quantum yield of the amino acids found in proteins. The rest either do not fluoresce or fluoresce weakly. Therefore “Intrinsic Protein Fluorescence” usually refers to the fluorescence emission of the tryptophan amino acids.\n- In a hydrophobic environment (buried within the core of the protein), Tyr and Trp have a high quantum yield and therefore a high fluorescence intensity. In contrast in a hydrophilic environment (exposed to solvent) their quantum yield decreases leading to low fluorescence intensity.\n- For Trp residue, there is strong stoke shifts dependent on the solvent, meaning that the maximum emission wavelength of Trp will differ depending on the Trp environment.\n- High resolution (1.0 nm)\n- High scan speed up to 24,000 nm/min\n- Sensitivity, high performance R928 PMT detector combined with PerkinElmer optics ensures optimum performance across the spectrum.\n- Broad excitation and emission wavelength range up to 900 nm\n- For samples at risk for photo-bleaching the FL 6500 provides accurate and high quality results with a user controllable pulsed excitation source.\n- Superior wavelength accuracy and reproducibility for right first time results\nTERTIARY STRUCTURE ANALYSIS BY FLD AT CBA\n|Tertiary structure analysis by Fluorescence spectroscopy\n|Amount- 1 ml-3 ml (0.5-1 mg/ml)\nFormulation buffer- 5 ml\n|FLD Spectra of at least two concentrations, Overlay FLD spectra with Tryptophan\n|Information required from client\n• Buffer composition (in case of formulation)\nNote: Buffer composition that may quench or alter the fluorescence of a fluorophore, may interfere in assessing the Fluorescence emission properties.","domain":"optical_engineering"}
{"url":"http://roseannamccoyfutchrealestateagentrichmondca.com/gloss-meter/","date":"2020-09-26T02:45:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400232211.54/warc/CC-MAIN-20200926004805-20200926034805-00331.warc.gz","language_score":0.9056820869445801,"token_count":627,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__241276647","lang":"en","text":"Matt coating interpretation as well as significance\nHow does a gloss meter work?\nThe dimension results of a glossmeter are related to the amount of reflected light from a black glass criterion with a specified refractive index. The ratio of shown to case light for the specimen, compared gloss meter to the ratio for the gloss standard, is videotaped as gloss systems (GU). The device of dimension utilized by a gloss meter is called a gloss system (GU).\nThe dimension range, Gloss Devices (GU), of a glossmeter is a scaling based on a very polished recommendation black glass standard with a specified refractive index having a specular reflectance of 100GU at the defined angle. This standard is utilized to establish a top point calibration of 100 with the reduced end factor established at 0 on a perfectly matt surface area. This scaling appropriates for a lot of non-metallic finishings as well as materials (paints as well as plastics) as they generally drop within this array. For various other products, highly reflective in appearance (mirrors, layered/ raw steel elements), greater values can be achieved reaching 2000 Gloss Systems.\n- This scaling is suitable for the majority of non-metallic coverings and materials (paints and also plastics) as they normally drop within this range.\n- The measurement range, Gloss Units (GU), of a glossmeter is a scaling based on a highly refined referral black glass requirement with a defined refractive index having a specular reflectance of 100GU at the defined angle.\n- This criterion is used to establish a top point calibration of 100 with the lower end point established at 0 on a completely matt surface area.\nFor transparent materials, these values can likewise be raised because of several reflections within the product. The glossmeter provides a quantifiable way of determining gloss strength ensuring uniformity of dimension by specifying the exact lighting and also watching conditions. The arrangement of both illumination source as well as observation function angles permits measurement over a tiny series of the overall representation angle.\nPCE Instruments markets a range of gloss measuring tools that cover the gloss determining range from matte to mirror gloss. PCE Instruments’ diverse gloss meter items have different determining varieties to fit gloss dimensions of varnishes and paints along with sleek metals, mirrors and likewise glossy surfaces. As an example, for identifying the gloss of paints and also varnishes, generally, a measuring range from 0 to 100 gloss units is sufficient.\nThe PCE-GM 60Plus gloss meter is a portable handheld 60 degree gloss meter. This finish and also paint gloss meter determines the gloss devices (GU) on a material’s surface. The rechargeable gloss meter or gloss tester utilizes reflected light for gloss measurement per ISO 2813, GB/T 9754, ASTM D523 and ASTM D2457 requirements. A gloss meter procedures gloss devices of repainted, covered as well as shiny surfaces normally from 20-degree, 60-degree and 85-degree reflective angles. When selecting the proper angle for gloss dimension, it is essential to think about the gloss series of the surface area.","domain":"optical_engineering"}
{"url":"https://easygetway.com/projectors","date":"2023-12-09T12:14:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100909.82/warc/CC-MAIN-20231209103523-20231209133523-00736.warc.gz","language_score":0.9457466006278992,"token_count":376,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__124375560","lang":"en","text":"Whether your company is looking for high-definition, high-brightness projectors that can handle large event screens, or a video projector that can project in a small space, covering the full range and providing the widest range of projectors on the market. Our wide range of projectors are suitable for a variety of applications and environments. However, each category is best suited for the following uses: Projectors meet the needs of all types of businesses; Whether you are looking for superior image quality, flexible installation, easy maintenance or a wireless connection, there is a projector you can use to achieve the ideal visual solution. Our range of projector accessories are designed to improve the usability and efficiency of all our projectors. Our RGB Booster technology ensures high image quality with color rendering and brightness highlighting each color. Detail Clarity processors also aid in advanced analysis of the image processing circuit of the video signal frequency range. This process extracts data about the distribution of the high, medium, and low frequency components and brings out the fine details of the image. With Solid Shine lighting technology, a newly developed light source in our new line of LED / Laser Combo, it's an industry leader that delivers robust reliability and long-lasting brightness that cannot be achieved with a traditional lamp-based projector. It has once again demonstrated its leadership role in this exciting new development in projection, and new models that bring this new technology to higher brightness and larger function combinations are within reach. The opening ceremony demonstrated the ability of our projectors to bring static objects to life by projecting high-quality footage onto them. Projectors were an important part of the opening ceremony and helped bring Danny Boyle's vision to life. Some stunning visuals, with bright colors and high-resolution detail, were projected by the series' projectors, creating an unprecedented backdrop of light and color for the music and dancers that helped spark everyone's imagination.","domain":"optical_engineering"}
{"url":"https://www.ruml-industry.cz/en/kovovyroba/rezani-laserem/","date":"2021-05-15T13:22:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991370.50/warc/CC-MAIN-20210515131024-20210515161024-00091.warc.gz","language_score":0.8479536175727844,"token_count":128,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__36660456","lang":"en","text":"Cutting of material up to a thickness of 25 mm on the TruLaser 3030 machine.\nWe provide cost-effective cutting of both thin and thick material up to a thickness of 25mm on the TruLaser 3030 machine. This computer-controlled laser allows to create very complicated shapes with high cut quality. This machine uses CoolLine technology that allows reducing the distance between the parts and cutting finer details while maintaining a high quality cut.\n|Laser TruLaser 3030|\nThe new generation of the reliable TruLaser 3030 combines innovative technology and high laser power with a new design concept and optimized operation.","domain":"optical_engineering"}
{"url":"https://www.simeonmedical.com/en/products/surgical-lights/businessline/","date":"2023-12-03T23:28:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100518.73/warc/CC-MAIN-20231203225036-20231204015036-00066.warc.gz","language_score":0.8505251407623291,"token_count":986,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__37061064","lang":"en","text":"Great flexibility, attractive price and high product quality – the SIMEON BusinessLine provides all of the advantages of Sim.LED technology at an unique cost-to-benefit ratio. The BusinessLine offers limitless combinations of small Sim.LED 450, medium-sized Sim.LED 500 and large Sim.LED 700 surgical lights in single and multi-color. It gives OR planners and users the greatest possible flexibility in the world and ensures optimal light conditions depending on the situation and requirements.\n- Uncompromising material selection. High-grade construction with aluminum housing and glass for energy efficiency and long life time\n- Patented reflector technology for unparalleled light quality without shadows thanks to Reflector Shadow Resolution System (RSRS) requiring no vulnerable sensor systems or adjustments to the light values\n- Depth illumination adjusted to meet your needs\n- sun.LED provides consistently high color rendering in each color temperature setting\n- Intuitive operation of all BusinessLine functions via cardanic control as well as using a wall control unit specifically adapted to this operating concept.\n- my.GRIP: allows sterile control of two light parameters at the same time right on the sterile handle\n- my.LED function: user-individual presetting of light intensity, illuminated field size and color temperature can be simply saved and activated\n- Innovative antibacterial coating Anti.BAC®\n- Seamless enclosed design enables extremely easy cleaning\n- Excellent laminar flow values for optimal hygiene in the surgical field thanks to minimal heat development due to the aluminum light head\n- Maximum hygiene and service life thanks to lightproof, scratch-resistant SSG safety glass\n- Sim.INTERFACE enables addition to integrated OR systems\n- Expansion by Sim.CAM cameras and Sim.SCREEN monitor arms\n- Patented Sim.FLEX suspension arm system for simple subsequent system expansion\n- Service and maintenance-friendly design\n- Upgradeable software\nWe have developed the new Anti.BAC® coating with maximum antimicrobial effect (log 5.9 for Escherichia coli and log 4.29 for Staphylococcus aureus) for our BusinessLine series of LED surgical lights.\n|SIMEON BusinessLine||Sim.LED 700 MC/SC||Sim.LED 500 MC/SC||Sim.LED 450 MC/SC|\n|Central illumination intensity at a distance of 1 m [lx]||160,000||160,000||140,000|\n|Electronic dimmability from/to [lx]||48,000-160,000||48,000-160,000||42,000-140,000|\n|Color temperature [K]|| 3,500/4,000/4,500/ 5,000/5,500 [MC]|\n| 3,500/4,000/4,500/ 5,000/5,500 [MC]|\n| 3,500/4,000/4,500/ 5,000/5,500 [MC]|\n|Focusable field size d10 at a distance of 1m [mm]||170-300||170-290|| 140-230 [MC]|\n|Color rendering index Ra in every color temperature setting||96||96||96|\n|Light head power consumption [W]|| 66 [MC]|\n| 62 [MC]|\n| 51 [MC]|\n|LED life time [h]||> 60,000||> 60,000||> 60,000|\nBeginning of 2021, the new building of Lutrina Klinik in Kaiserslautern was opened, which among other things has a completely new equipped high-end operating area. Over 2500 operations are planned per year. These are carried out in the modern operating theaters, equipped with SIMEON BusinessLine operating lights, Sim.CAM camera systems and Sim.CARRY ceiling supply units.\nEverything at a glance – according to this motto SIMEON equipped almost 20 rooms in the new Intensive and Emergency Center in Fulda, Germany. The excellent light and image quality of the SIMEON products justified the decision of the hospital for SIMEON. In the new center, 14 operating and 11 examination rooms as well as 7 further rooms have been equipped with the SIMEON BusinessLine operating lights including Sim.CAM camera systems as well as the Sim.SCREEN monitor holders.\nThe intuitive operation and unique light quality of the SIMEON operating lights formed the basis of the Royal College of Surgeons in Ireland for choosing the high quality SIMEON products. Founded in 1748, the teaching facility nowadays trusts in the SIMEON quality Made in Germany, and the unique product features of SIMEON BusinessLine operating lights, especially in the field of laboratories.","domain":"optical_engineering"}
{"url":"https://wattsan.com/laser-marking-machine-for-metal/","date":"2023-12-07T09:34:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100651.34/warc/CC-MAIN-20231207090036-20231207120036-00370.warc.gz","language_score":0.9098213911056519,"token_count":2187,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__194562360","lang":"en","text":"Laser marking machines are used everywhere from mechanical engineering to souvenir production. The demand for laser metal engravers is growing due to the large-scale use of equipment for engraving products.\nIn this article, we will tell you what a laser marking machine is, what functions it has, and how to choose the most optimal one.\nWhat is a laser marking machine and where can it be used?\nA fiber laser marker equipment designed for marking and engraving on material.\nThe main part of a laser metal engraver is the emitter, which burns out the surface layer of the material with a laser beam.\nThe laser marking machine can be used to work with the following materials:\n- rubber and many others.\nThe machine is capable of engraving on both organic materials (CO2 systems) and metals (fiber optic markers).\nA laser metal marking machine is used to produce:\n- license plates;\n- souvenir items with engraving and much more.\nThe laser marker works by burning the pattern on the material, while the possibility of damaging it is excluded.\nAdvantages of a laser marking machine\n- No production waste. Unlike fiber metal cutters, no debris (chips and dust) is generated during the work;\n- Easy operation and maintenance. Anyone can master the skills of using the equipment;\n- Reliability. When used properly, the purchased equipment will last for many years;\n- Wide range of processing materials. The fiber laser marker can work with virtually any material, even the most fragile one. The main thing is to choose the optimal type of equipment;\n- Manufacture of high quality products. The laser marker allows you to engrave complex patterns that will be durable and will not change under any circumstances.\nThe fiber metal laser marker is suitable for the production of any scale. The high-quality equipment pays off quickly and virtually does not need to be repaired during the entire service life (more than 6 years).\nMarking and engraving\nThere are two main types of work done with a fiber laser marker:\nIn the first case, the material is processed by a machine to apply the desired shade.\nWhen engraving, the material is affected in depth. In other words, a drawing or an inscription is applied by burning the surface.\nA single laser marking system can be used for both marking and engraving metal.\nA laser marking specifications\nThe marking laser consists of a large number of elements that ensure its operation. The main part is the emitter.\nEmitters are usually divided into two types:\n- Fiber optic (ytterbium), designed to work with metal;\n- CO2 (carbon dioxide) emitter is used for processing organic material.\nThe choice of marker always depends on the type of material being processed.\nIt is worth noting that fiber equipment, unlike gas equipment, has a higher processing speed and a longer service life.\nLet us take a look at three proven companies that produce high-quality fiber optic emitters.\nLeading manufacturer of components for marking laser equipment.\nDue to the high frequency range, machines with this emitter are able to apply color images to hard metals. High performance and protection against reflections makes it possible to process non-ferrous metals.\n- Large functionality for a wide range of works;\n- Long service life (up to 100000 hours);\n- High beam quality without dissipation;\n- Unique systems and methods of material processing.\nMarkers with an IPG emitter are the best choice for high speed processing of complex materials.\nA low-cost Chinese brand for the production of marking lasers components.\nMax Photonics can be used to produce shields, souvenir products with simple drawings, inscriptions or customer logos, to apply barcodes and serial numbers.\nThe main advantage of the brand is value for money. Despite the lesser demand, the emitters have a long service life and a wide range of optional features. Lasers with this emitter will allow the owner to process many types of material. Such as:\n- epoxy resin;\n- ceramics and other.\nMarkers with an emitter of this brand will be excellent equipment to start your own production.\nA Chinese company that has been producing fiber-optic emitters since 2007.\nThe emitters are mainly designed for marking metal surfaces. High speed, productivity and reasonable cost allow you to perform work both in large and small production.\nCriteria for choosing a laser marking machine\nPurchasing equipment for production is confusing for inexperienced people. The range is very large, but the choice is always individual. That is why we offer you to note the important criteria for choosing machines (according to technical characteristics). The information will help you to choose the most optimal model for your production.\nEngraving detail and material processing speed depend on the choice of emitter power. Accordingly, the higher the power, the faster and better the work of marking laser will be performed.\nThis criterion is very important if the production is aimed at processing items in large quantities.\nTypically, emitters with an average power (20-50 W) are used in production.\nWhen working with fiber laser marker reflective metals (gold, silver and others), you should choose emitters with a power of 70 W or more. However, with such power, it is difficult to polish or clean items.\nLenses and working area\nThe choice of lens also determines the performance and quality of machining. The lens and the size of the working area are usually chosen in accordance with the thickness, dimensions and texture of the material.\nLenses with a short focal length (up to 2 inches) are used in markers designed for engraving thin material. For materials with greater thickness, long focal length lenses (from 4 inches) are usually used.\nThe working area is selected depending on the size of the processed item. Among the sizes of the working area, the following are in high demand: 100 * 100, 200 * 200 and 300 * 300 mm.\nThe controller is a board that is responsible for controlling the operation of the marker.\nWattsan fiber laser marking systems are equipped with their own controllers that interact with the EZ CAD program. The software has extensive functionality for the full-fledged operation of laser markers and built-in generators for barcoding.\nWhen choosing a controller, pay attention to the functionality of the software that is compatible with it.\nAnother important tool that fiber laser marking systems are equipped with. The scanner directs the laser beam with the help of two rotating mirrors into a special lens. From the lens, the beam is projected onto the material.\nThe weight of the mirrors determines how high the speed of movement of the laser beam will be. The lower the weight, the higher the speed.\nWattsan laser marker models\nHere is a brief overview of modern fiber laser marking systems models from Wattsan.\nWattsan FL TT\n|Laser power||30 W|\n|Laser emitter||JPT TT (MOPA)|\n|Work area||200 x 200 mm|\n|Marker type||Table type|\nThe laser marker is equipped with a movable unit with a lens. This allows you to easily rotate and set the support to the desired position.\nThe main advantage of Wattsan FL Top Table is the possibility of individual assembly for materials of any size. For example, if the material does not fit in height, then the support can be removed and the module with the scanner placed on the ceiling. This feature allows you to engrave large-sized products.\nWattsan FL ST\n|Laser power||20-50 W|\n|Laser emitter||IPG, MAX, RAYCUS|\n|Work area||100 x 100 mm|\nWattsan FL Static Table is a model equipped with a table that serves as a workstation. Such a design will allow you to place a personal computer in the workspace.\nThe marker is characterized by high performance and clear engraving. A built-in foot pedal will speed up work in batch production.\nThe fiber laser marker is equipped with a Max Photonics emitter, which is located inside the machine body. The controller is compatible with EzCad software.\nWattsan FL ST is in high demand among large manufacturers. It can be used to make shields, souvenirs, put serial numbers, barcodes, etc.\nWattsan FL LT\nThe Wattsan FL Lifting Table is the most compact fiber laser model. The emitter is located in the same place as the marker head.\nThe head of the laser is static, so the focus is set by adjusting the table.\nWattsan FL LT is ideal for processing small-sized items, and will be an indispensable assistant in the manufacture of signs, business cards and shields.\nThe laser marker belongs to the tabletop models. It comes with a foot pedal, which allows you to significantly speed up the batch production process.\nWattsan FL HH\n|Laser power||20-50 W|\n|Laser emitter||IPG, MAX, RAYCUS|\n|Work area||100 x 100 mm|\nWattsan Hand Held refers to handheld laser markers. The appearance of this machine resembles the previous model. The main difference is the removable marking unit, which is equipped with a handle and a focus stop. Such a feature makes it easy to perform work in any plane.\nMachine control is carried out in the EzCad program. The software supports vector and bitmap images. A nice bonus is a built-in generator for applying barcodes, marking and QR-codes.\nWhere to buy a laser marker?\nYou can buy a laser marker on many websites, including Chinese marketplaces. However, dubious suppliers will not be able to guarantee the high quality of the machine and its components. It is also not worth counting on the warranty service.\nFor these reasons, we recommend choosing proven manufacturers and suppliers. This will allow you to buy quality equipment with a warranty certificate.\nWattsan is a world-class manufacturer of laser and milling machines. By purchasing our equipment, you will receive:\n- help with starting-up and adjustment work;\n- training in working with a machine and software;\n- consultations and answers to your questions;\n- One –year warranty.\nOur company also offers maintenance and repair services for laser markers from other manufacturers.\nYou can find out more by contacting our managers or visiting demo rooms demonstrating the work of our laser machines.","domain":"optical_engineering"}
{"url":"https://blog.singsys.com/google-glass-prescription-lenses-coming-in-january-2014/","date":"2023-01-31T20:07:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499890.39/warc/CC-MAIN-20230131190543-20230131220543-00278.warc.gz","language_score":0.8974168300628662,"token_count":186,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__301277650","lang":"en","text":"The most awaited head mounted wearable computer, Google Glass is coming in January 2014.\nTim Moore, one of the early Glass Explorers said “We’re happy to finally let you in on this exciting news. One of the first wearable technology items Rochester Optical will be producing are custom prescription, fashion, and sport lenses for Google Glass, available for purchase in early 2014.”\nTim Moore will join the prescription lens project of New York-based company Rochester Optical. Interesting thing is that the price of the Google Glass prescription lenses will be in the same range as other starndard prescription lenses and it will be available in different colors and customers can match according to their Glass.\n“The arm mount will fit Google Glass perfectly, and it will be available in a number of colors that will match Glass colors,” Moore said.\nIsn’t it amazing ? Share it in the comments.","domain":"optical_engineering"}
{"url":"https://www.takeitsmart.in/listing/light-following-robot/","date":"2023-09-28T13:35:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510412.43/warc/CC-MAIN-20230928130936-20230928160936-00267.warc.gz","language_score":0.8318611979484558,"token_count":120,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__272133418","lang":"en","text":"Light Following Robot\n- Category: Embedded/Electronics Projects\nMini Project Using Arduino Uno For ECE Students\nThis Project will focus on the possibilities of using only light sensing devices for a tracking robot and examine the advantages and disadvantages of this. The purpose is to investigate which type of light sensor is more suitable for a tracking robot and what the limitations of a tracking robot using this technology. The robot will be tested in both a completely dark room and a light room.\nMore information Contact us\nKIRAN KUMARA N E","domain":"optical_engineering"}
{"url":"http://www.professionalvideostore.com/product/2625/canon-eos-c500-ef","date":"2017-12-15T08:30:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948567785.59/warc/CC-MAIN-20171215075536-20171215095536-00633.warc.gz","language_score":0.831503689289093,"token_count":601,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__204813153","lang":"en","text":"Direct product search: 0 ITEMS IN CART My account\nCANON EOS C500 EF\nPower to create: 4K, RAW, Canon Log Gamma\nThe powerful, compact EOS C500 offers 4K video capture, RAW data output and Canon Log Gamma to unleash the full potential of Cinema EF Lenses and deliver high-quality video with wide dynamic range.\n8.85MP Super 35mm CMOS sensor\nAn 8.85MP Super 35mm CMOS sensor, designed and manufactured by Canon specifically for video capture delivers superb high-resolution images with high sensitivity, low noise, reduced rolling shutter artefacts and beautifully shallow depth of field.\n4K 10 bit RAW\nThe C500 offers 4K 10-bit RAW, 2K RGB (4:4:4, 10/12 bit) or Full HD RGB data output to a compatible third party external device at frame rates of up to 60P. Two further SDI outputs can connect to an external monitor. Simultaneously record Full HD MXF files to CF cards for use as proxies in desktop editing.\nInterchangeable lens (EF mount)\nExpand your creative options through a huge range of interchangeable lenses. The EF mount with Cinema Lock is compatible with Canon 4K EF Cinema lenses plus over 60 EF lenses including Macro and Fish Eye, while the moveable lens locking mechanism allows for easier lens changes. 3 electronic built-in ND filters increase shooting versatility.\nCompact, modular, lightweight\nUltra-compact, a basic recording set up weighs just 1820g (without lens). A detachable multi-angle LCD panel ensures maximum manoeuvrability and the robust, splash resistant body features magnesium alloy components for extra rigidity and toughness.\n50Mbps MPEG-2 MXF to CF cards\nRecord broadcast-ready MPEG-2 MXF files at 50Mbps (4:2:2) to two CF memory cards – with relay and simultaneous recording options. Industry-standard outputs include HD-SDI and Timecode, Genlock and Synch terminals for multi-camera shoots.\nHigh sensitivity, low noise\nEnhanced sensitivity, low noise images can be captured at up to ISO 20000, allowing use in almost any shooting situation.\nShooting with Canon Log delivers neutral image quality with wide dynamic range - 12-stops of latitude at a base setting of ISO 850 - for maximum freedom in post-production.\n24.00p for movie production\nPAL, NTSC, and 24.00p modes are included as standard. Support for frame rates up to 120p in both 4K and 2K resolution enables high-speed (slow motion) video capture in high resolution.\nWi-Fi remote control\nUse the optional Wi-Fi adaptor (WFT-E6) to control camera settings like ISO, focus, aperture, white balance and ND filters via a notebook, tablet or Smartphone using a simple browser-based user interface.","domain":"optical_engineering"}
{"url":"http://pathological-microscope50494.imblogs.net/7816458/various-kinds-of-video-microscope","date":"2018-12-10T04:50:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823303.28/warc/CC-MAIN-20181210034333-20181210055833-00432.warc.gz","language_score":0.9216342568397522,"token_count":802,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__211350966","lang":"en","text":"Microscope Glass Slides are mechanical devices used for seeing items and materials so minute in size that they are undetectable by the naked eye. The procedure carried out with such an instrument, called Microscopy, utilizes the combined schools of optical science and light reflection, controlled and controlled through lenses, to study small items at close range.\nThe fundamental microscope includes numerous complex and interrelated parts: a cylinder that offers a necessary area of air in between the ocular lens (eye piece) located at the leading and the unbiased lens repaired at the bottom, hovering near to a phase consisting of an optical assembly on a turning arm and a centered hole through which a light shines from a solid U-shaped stand below. Amplifying values for the ocular variety through X5, X10, to X20, while the worths for the unbiased lens has a wider period: X5, X10, X20, X80, x40, and x100. These worths supply the observer with a spectrum of possible range orientations and degrees of sharpness as are essential for seeing and analysis.\nNumerous different kinds of microscopic lens exist, each having particular functions:\nOptical Microscope: The very first ever produced. The optical microscopic lense has a couple of lenses that work to expand and enhance images placed in between the lower-most lens and the light source.\nBasic Optical Microscope-- uses one lens, the convex lens, in the magnifying process. This sort of microscopic lense was used by Anton Van Leeuwenhoek throughout the late-sixteen and early-seventeenth centuries, around the time that the microscopic lense was invented.\nSubstance Optical Microscope-- has two lenses, one for the eyepiece to serve the ocular point of view and among short focal length for unbiased point of view. Several lenses work to reduce both chromatic and round aberrations so that the view is unblocked and uncorrupted.\nStereo Microscope: This is likewise known as the Dissecting Microscope, and utilizes 2 separate optical get more info shafts (for both eyes) to develop a three-dimensional image of the object through two a little different perspectives. This sort of microscope carries out microsurgery, dissection, watch-making, little circuit board production, and so on\n. Inverted Microscope: This kind of microscopic lense views things from an inverted position than that of regular microscopic lens. The inverted microscope concentrates on the study of cell cultures in liquid.\nPetrographic Microscope: This sort of microscopic lense includes a polarizing filter, a rotating stage, and gypsum plate. Petrographic Microscopes specialize in the study of inorganic compounds whose homes tend to modify through shifting point of view.\nPocket Microscope: This type of microscope includes a single shaft with an eye piece at one end and an adjustable unbiased lens at the other. This old-style microscopic lense has a case for easy carry.\nElectron Microscopes: This sort of microscopic lense utilizes electron waves running parallel to a magnetic field supplying greater resolution. 2 Electron Microscopes are the Scanning Electron Microscope and the Transmission Electron Microscope.\nScanning Probe Microscope: This type of microscope procedures interaction between a physical probe and a sample to form a micrograph. Only surface area data can be gathered and analyzed from the sample. Kinds Of Scanning Probe Microscopes include the Atomic Force Microscope, the Scanning Tunneling Microscope, the Electric Force Microscope, and the Magnetic Force Microscope.\nScience would not be what it is today without the microscope, as this gadget is the primary instrument by which the world and all of its aspects are measured and examined. It is with the microscope that we take an appearance inside of ourselves so we can understand and find out who we are and how we work.","domain":"optical_engineering"}
{"url":"http://lasermarkingtechnology.com/laser-marking-overview/","date":"2023-02-07T13:48:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500619.96/warc/CC-MAIN-20230207134453-20230207164453-00519.warc.gz","language_score":0.8898544907569885,"token_count":435,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__125763717","lang":"en","text":"What is laser marking?\nLaser marking stands for marking or labeling parts and materials with a laser beam. Different processes are distinguished, such as engraving, removing, staining, annealing and foaming.\nDepending on the material and the quality requirement, each of the following procedures has its own advantages and disadvantages.\nDuring laser engraving, the part surface is melted and evaporated with the laser. Consequently, the laser beam removes the material skin.\nThe laser beam removes the top coats applied to the substrate usually the packaging. A contrast is produced as a result of the different colors of top coat and substrate base.\nCommon materials that are laser marked by means of removing coating material include anodized aluminum, coated metals, foils and films, or laminates.\nIn the staining method, the heat effect generated by the laser beam causes a chemical reaction in the material. Depending on the material composition, this will result in different color shades.\nFor example, if a light plastic material is discolored during laser etching, soot particles may be produced that will result in a dark marking.\nAnnealing marking is a special type of laser etching for metals. The heat effect of the laser beam causes an oxidation process underneath the material surface, resulting in a color change on the metal surface.\nIn this process the laser beam melts a material. Gas bubbles are produced in the material, which reflect the light diffusely.\nThe marking will turn out lighter than the areas that have not been etched. This type of laser marking is used mainly for dark plastics.\nWhat materials can be marked with a laser?\nMetals: Stainless steel, aluminum, gold, silver, titanium, bronze, platinum and copper.\nPlastics: ABS, polycarbonate, P.E.T., polyamide, PMMA or plastics special with laser additives.\nPackaging: coatings, foils and films.\nSynthetic materials: Laminates, composites.","domain":"optical_engineering"}
{"url":"https://www.heyydar.com/products/cycling-eyewear-pin-hole","date":"2020-09-30T17:07:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402127075.68/warc/CC-MAIN-20200930141310-20200930171310-00383.warc.gz","language_score":0.8948085308074951,"token_count":318,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__6872831","lang":"en","text":"Having the sun in your eyes badly affecting your cycling performance? Wearing traditional sunglasses aren't helping that much?\nIf that is the case, we have the perfect product for you. The Cycling Eyewear Pinhole Sunglass.\nYou must be wondering what pinhole sunglasses are? Well, pinhole glasses are just like your ordinary glasses but with hundred of small, tiny pinholes instead of a normal lens. These tiny holes help in focussing better and relieve your eyes from the stress and tension caused by normal lenses leading to headaches and a decline in cycling performance.\nThese specially designed cycling sunglasses are highly acknowledged and approved by opticians around the world.Features:\n1. Improves your vision by up to 20%,\n2. 15min daily can improve eyesight significantly within weeks.\n3. Triggers your natural vision aiding to see more clearly and focus.\n4. Takes away all the stress and tension from your eyes caused by the sun and strain.\n5. Can also be used while using your computer long hours.\n6. Highly effective for Myopia and Hyperopia.\n7. Also effective for cataracts and many other optical problems.\nGlasses Frame: 5.2×4.3cm/2.05×1.69in.\nBridge of the nose: 2cm/0.79in (approx).\nGlasses Legs: 12cm/4.72in.\nItem Type: Protection Glasses.\n1 x Piece hole glasses.\nEstimated delivery time 7 - 30 business days","domain":"optical_engineering"}
{"url":"http://mtmscientific.com/eyepiece.html","date":"2023-12-05T21:37:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00330.warc.gz","language_score":0.8551180362701416,"token_count":325,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__147739293","lang":"en","text":"MTM Scientific, Inc... How to Build Telescope Eyepieces\nOur TELESCOPE EYEPIECE EXPERIMENTER KIT makes it quick and easy to build a symmetrical Ramsden telescope eyepiece and to explore other eyepiece designs. This Experimenter Kit contains everything you need to get started: an Eyepiece Body, Assorted Lenses, Mounting Washers and Instructions. The 1.25\" Eyepiece Body is carefully machined from black Delrin plastic. The Mounting Washers are a flexible and reusable system for mounting lenses inside the Eyepiece Body. This system allows you to easily mount and space lenses for experimenting. The Lens Assortment includes 2 plano-convex lenses for building a 37 mm FL symmetrical Ramsden eyepiece. Also included is a packet of 10 surplus lenses (contents vary), and an optical magnifier optic that can also be mounted and used as an eyepiece. The instructions get you started, and include a detailed resource list of design information and part sources for more complex eyepiece designs.NOTE: THE KIT IS SOLD OUT... BUT THE FREE PLANS WITH HOW TO INFORMATION IS AVAILABLE AS A FREE DOWNLOAD\nAlthough we have sold out of the original Eyepiece Experimenter Kit we have posted the instructions from the kit here for free. This PDF file contains instructions for building and experimenting with simple telescope eyepieces.\nFree Download: Eyepiece Experimenter Kit Instructions\nClick Here to View other Products from MTM Scientific, Inc.","domain":"optical_engineering"}
{"url":"https://www.jjhaleyracing.com/11001/optical-fiber-ribbon-machine-why-is-this-important/","date":"2019-11-18T01:42:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496669422.96/warc/CC-MAIN-20191118002911-20191118030911-00313.warc.gz","language_score":0.9220617413520813,"token_count":1178,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__19739655","lang":"en","text":"Why do you need Fiber Coloring Machine and what can it do for you If you have ever seen a telephone company technician working on the phone jump box outside your home, you ought to have noticed a unique handheld phone like instrument. The technician uses it to identify the incoming telephone wires by tapping onto the wires and listening for a tone. Once he finds the right wire, he connects the wire in your house.\nDuring fiber optic network installation, maintenance, or restoration, it is additionally often necessary to identify a specific fiber without disrupting live service. This battery powered instrument seems like an extended handheld bar and is also called fiber identifier or live fiber identifier.\nHow does it work? You will find a slot on the surface of a fiber optic identifier. The fiber under test is inserted into the slot, then your fiber identifier performs a macro-bend on the fiber. The macro-bend makes some light leak right out of the fiber as well as the optical sensor detects it. The detector can detect both the existence of light and also the direction of light.\nA fiber optic identifier can detect “no signal”, “tone” or “traffic” plus it indicates the traffic direction.\nThe optical signal loss induced from this strategy is so small, usually at 1dB level, that it doesn’t cause any trouble on the live traffic.\nWhat sort of Optical Fiber Coloring Machine does it support? Fiber optic identifiers can detect 250um bare fibers, 900um tight buffered fibers, 2.0mm fiber cables, 3.0mm fiber cables, bare fiber ribbons and jacketed fiber ribbons.\nMost fiber identifiers must change a head adapter so that you can support all these types of fibers and cables. While many other models are cleverly designed plus they don’t have to alter the head adapter whatsoever. Some models only support single mode fibers yet others supports both single mode and multimode fibers.\nWhat exactly is relative power measurement? Most high end fiber optic identifiers are equipped with a Liquid crystal display which may display the optical power detected. However, this power measurement cannot be utilized for a accurate absolute power measurement of the optical signal because of inconsistencies in fiber optic cables as well as the impact of user technique on the measurements.\nBut this power measurement can be used to compare power levels on different fiber links which have same type of fiber optic cable. This relative power measurement has many applications as described below.\n1. Identification of fibers\nThe relative power reading could be used to assist in the identification of the live optical fiber.There are many tests which can be performed to isolate the required fiber cable from a group of fibers without taking along the link(s). Three methods that may be used include comparing relative power, inducing macrobends, and varying the optical power of the source. No single strategy is best or necessarily definitive. Using one or a mix of these techniques may be needed to isolate the fiber.\n2. Identification of high loss points\nFiber optic identifier’s relative power measurement capability could be used to identify high loss point(s) in a period of fiber. By taking relative power measurements along an area of optical fiber that is suspected of getting a very high loss point such as a fracture or tight bend, the change in relative power indicate point could be noted. When a sudden drop or increase in relative power between two points is noted, a higher loss point probably exists between the two points. The user can then narrow in on the point through taking further measurements between the two points.\n3. Verify optical splices and connectors\nFiber optic identifier may be used to verify fiber optic connectors and splices. This test must be performed on the lit optical fiber. The optical fiber can be carrying a signal or even be illuminated utilizing an optical test source. Attach fiber identifier to 1 side in the optical connector/splice. Read and record the relative optical power. Repeat the measurement on the second side of the connector/splice. Go ahead and take difference between the reading on the second side and also the first side. The real difference needs to be roughly similar to the optical attenuation of the optical connector/splice. The measurement can be taken repeatedly and averaged to enhance accuracy. When the optical fiber identifier indicates high loss, the connector/slice might be defective.\nFiber optic splice closure will be the equipment utilized to offer room for fusion splicing optical fibers. Additionally, it provides protection for fused fiber joint point and fiber cables. There are mainly two kinds of closures: vertical type and horizontal type. Quite a number of fiber splice closures are designed for different applications, such as aerial, duct fiber cables and direct burial. In most cases, they may be usually used in outdoor environment, even underwater.\nFiber Optic Splice Closure Types . For outside plant splice closure, there are two major types: horizontal type and vertical type.\n1) Horizontal type – Horizontal type splice closures seem like flat or cylindrical case. They whzqqc space and protection for optical cable splicing and joint. They may be mounted aerial, buried, or for underground applications. Horizontal types are used more frequently than vertical type (dome type) closures.\nMost horizontal fiber closure can accommodate hundreds of Secondary Coating Line. They are designed to be waterproof and dirt proof. They may be used in temperature which range from -40°C to 85°C and can accommodate up to 106 kpa pressure. The cases are often made of high tensile construction plastic.\n2) Vertical Type – Vertical form of fiber optic splice closures looks like a dome, thus also, they are called dome types. They meet the same specification since the horizontal types. They are designed for buried applications.","domain":"optical_engineering"}
{"url":"http://smarterbuildingtech.com/indoor-sarix-professional-series-ijp221-1is-surface-mount-mini-dome-2mp-camera/","date":"2019-08-17T14:34:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313428.28/warc/CC-MAIN-20190817143039-20190817165039-00484.warc.gz","language_score":0.8047354817390442,"token_count":147,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__28760308","lang":"en","text":"The next-generation Sarix IBP Series indoor and outdoor bullet cameras feature a remote zoom lens for wide angle or long range surveillance needs. Autofocus capability ensures the camera can be automatically refocused when needed. Additionally, the Sarix IBP Series features advanced color science, a mechanical IR cut filter, and advanced integrated adaptive IR illumination for increased sensitivity in low-light installations.\n- Up to 2 Megapixel (Megapixel) Resolution\n- Up to 30 Images Per Second (IPS) at 2 Megapixel\n- Up to 64 GB Edge Storage with Micro SD Card\n- Motion Detection and Camera Sabotage Detection\n- Power Over Ethernet (POE)\n- Compatible with Pelco and Third-Party Videos","domain":"optical_engineering"}
{"url":"https://newton.ex.ac.uk/research/nonlinear/","date":"2023-09-23T19:13:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.19/warc/CC-MAIN-20230923162848-20230923192848-00284.warc.gz","language_score":0.8948293328285217,"token_count":372,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__110588733","lang":"en","text":"|Physics and Astronomy||\n|Physics Home||Study here||Our Teaching||Our Research||Our Centres||News||Work here||EMPS|\nBack to top\nSchool of PhysicsNonlinear Optics\nDr Malgosia Kaczmarek, Dr Changxi Yang, Dr Sveta Tatarkova\nThe research interests of Nonlinear Optics group concentrate on fundamental characterisation of new nonlinear materials and novel applications of infrared-sensitive photorefractive crystals and waveguides.\nPhotorefractive materials form an important part of today's optical technology. One of their most attractive features is their high nonlinearity, which can be induced with low power densities of light. We investigate the propagation and high amplification of light in rhodium doped photorefractive materials to establish optimum range of doping that enhances their performance with low energy infrared light instead of visible light. In collaboration with Imperial College we are finalising a model to characterise Rh:BaTiO3 material.\nThe major part of our present research concerns configurations that fully utilise the capability of photorefractive materials to efficiently amplify light. A photorefractive ring cavity offers the attractive possibility of using it for sensing applications for the detection of trace species and pollutants. This work is carried out in collaboration with the University of Southampton.\nThere is a need for new photosensitive materials that are as efficient and highly nonlinear as conventional photorefractive materials, but more versatile and a great deal cheaper. We have therefore started working on advanced photosensitive materials, such as recently discovered photorefractive liquid crystals and their applications in optical telecommunication.\nLast modified: Mon May 10 11:17:32 1999 comments to Dr Malgosia Kaczmarek.","domain":"optical_engineering"}
{"url":"https://www.aveka.com/projects/spheroidization-for-improved-powder-flowability/","date":"2024-02-29T09:05:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474795.48/warc/CC-MAIN-20240229071243-20240229101243-00509.warc.gz","language_score":0.9027324914932251,"token_count":173,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__164675432","lang":"en","text":"AVEKA was approached by a customer to process rough, jagged particles into smooth, more spherical particles to ease downstream use and flowability. Due to several characteristics, including molecular weight and melt viscosity, AVEKA determined this material did not easily form the desired spheres when spray chilled/prilled.\nAVEKA suggested surface modification using spheroidization to modify the customer’s material. To achieve the desired particle morphology, AVEKA performed multiple trials and optimized temperatures, spray angle, air flow rates, feed rate and nozzle configurations. AVEKA used laser light scattering to measure particle size distribution and performed scanning electron microcsopy (SEM) and digital image processing to image and quantify particle morphology. The final product was more spherical and demonstrated greatly improved powder flowability, which met the customer’s downstream processing needs.","domain":"optical_engineering"}
{"url":"https://www.quasar.com/services/laser-cutting/","date":"2023-12-01T04:18:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00184.warc.gz","language_score":0.8696429133415222,"token_count":302,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__225183981","lang":"en","text":"Quasar led the prototype industry by introducing laser processing back in 1981. Today we are still at the industry forefront employing talented craftsmen and state-of-the-art laser systems. Our Offline-Programming with Cenit FASTTRIM – 3D Laser Application, running inside Catia, enables us to generate a NC path to your supplied CAD model.\nWe have three and five axis CNC laser systems with up to six-axis capability. Our laser systems are powered with CO2, Trumpf TruDisk, or IPG Fiber laser sources. This range gives us the ability to cut various materials, including steel, aluminum, stainless, armor, copper, brass, wood, ceramic, acrylic, and exotic materials. With our multiple laser systems and power sources, capacity is never an issue at Quasar.\n- (9) 5-axis Laser Centers, up to 6-axis\n- Table sizes up to 156″ x 78″ (4m x 2m)\n- Up to 4,000 watts of power\n- Steel ≤ .625″ thick\n- Aluminum ≤ .250″ thick\n- Stainless ≤ .236″ thick\n- (7) 3-axis Laser Systems, with rotary tables\n- Tables sizes up to 156″ x 78″ (4m x 2m)\n- Up to 6,000 watts of power\n- Steel ≤ 1.00″ thick\n- Aluminum ≤ .375″ thick\n- Stainless ≤ .500″ thick","domain":"optical_engineering"}
{"url":"https://demo.chipmunktheme.com/resource/leica-50mm-f2-5/","date":"2024-04-12T12:15:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296815919.75/warc/CC-MAIN-20240412101354-20240412131354-00630.warc.gz","language_score":0.9135589003562927,"token_count":123,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__70243961","lang":"en","text":"Leica 50mm / f2.5\nPowerful, lightweight and designed to be easily operated.\n- Normal Lenses\nDesigned to capture images rich in perspective, this ultra wide-angle lens with its extreme angle of view is the ideal choice.\nHelp us find great content\nNever miss a thing! Sign up for our newsletter to stay updated.\nChipmunk is a responsive WordPress theme, tailored to meet the increased demand for curated content.\nCarefully crafted with the user in mind, to aid in great content discovery.","domain":"optical_engineering"}
{"url":"http://www.fijitimes.com/story.aspx?id=225301","date":"2015-04-19T17:35:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-18/segments/1429246639325.91/warc/CC-MAIN-20150417045719-00082-ip-10-235-10-82.ec2.internal.warc.gz","language_score":0.8992522358894348,"token_count":489,"dump":"CC-MAIN-2015-18","global_id":"webtext-fineweb__CC-MAIN-2015-18__0__84183058","lang":"en","text":"It's up-in-your-face brilliance, bring surround sound technology, your very own home theatre system in the living room. It's the new Sharp screen the movie viewing sensation you've been waiting for. The television screen of the future is here. Gokals store Sharp screens once again reinforces its leadership in LCD and 3D LED technology.\nYou can enjoy straight up 3D in dynamic high-brilliance picture with realistic depth.\nThis high-fly technology is equipped with super-high luminosity. The use of Quattron along with other new technologies enhances light utilisation efficiency to more than 1.8 times the previous total, delivering a bright picture even for 3D.\nOther features include vividly clear 3D reproduction. This means full colour reproduction and high contrast, clear expression from Quattron 3D technology provide an unprecedented degree of realism for home video.\nThe screen reduces crosstalk. Sharp's unique technology delivers high-quality 3D by reducing the ghost images (i.e., crosstalk) that often occur in 3D reproduction. Crosstalk occurs when the image for the left eye and image for the right eye overlap. The perception of depth in a 3D image is produced using separate images for the left eye and for the right eye.\nImportantly it is an energy saver, the high transmittance of the new four-primary colour filter in Quattron enables lower power consumption by using the LED backlight more efficiently than does a conventional panel. Using the yellow colour component improves efficiency for higher brightness.\nThe technology of Quattron 3D improves 3D images. Quattron 3D maximizes the viewer experience whether viewing movies, sports, or the wonders of nature. Four primary colour technology system and X-Gen panel technology\nThe newly developed four primary colour system (4C) and X-Gen panel are Sharp's unique leading-edge technologies that dramatically improve colour expressiveness and picture quality to an unprecedented degree. The 4C adds yellow reproduction to the conventional primary colours of red, green, and blue (3C).\nImproved colour reproduction allows an addition of yellow pixels that enables the reproduction of colours which display accurately. The four—colour system creates a vast array of colours and improves expressiveness.\nGokals store have the latest in stock and other renowned brands of LCDs and LEDs like Philips and Simmons.","domain":"optical_engineering"}
{"url":"https://best-of-space.de/2018/10/24/spacetechs-em-of-merlin-frequency-reference-unit-ready/","date":"2022-11-27T01:26:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710155.67/warc/CC-MAIN-20221127005113-20221127035113-00485.warc.gz","language_score":0.6759964823722839,"token_count":863,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__8234852","lang":"en","text":"Immenstaad, 27 September 2018: The German-French satellite MERLIN (Methane Remote Sensing LIDAR Mission) is a mission to observe the concentration of the greenhouse gas methane. In this cooperation between CNES and DLR, CNES signs responsible for the satellite bus, which is a Myriade Evolution, and DLR signs responsible for the instrument. The instrument on MERLIN is a pulsed high power LIDAR (Light Detecting and Ranging) operating precisely at the methane absorption lines at 1645.55 nm wavelength. The instrument emits two different wavelengths called ‘online’ and ‘offline’: Online means located in the absorption feature and offline beside it for reference purposes.\nTo enable the required emission wavelengths around 1645.5-1645.7 nm, a frequency reference unit (FRU) is part of the instrument on the satellite. The frequency reference unit contains a methane gas cell, several diode lasers (1064 nm and 1645 nm emission wavelength), a wavemeter and the associated control electronics including an FPGA for stabilizing the diode laser emissions and the high power laser pulse frequency to the methane cell and the wavemeter. The FRU is delivering its optical signals to the high power laser and measures their wavelengths and the ones of the high power laser pulses to MHz accuracy. In addition it performs the wavelength stabilization control loops for the internal diode laser and of the OPO of the high power laser.\nOne and a half years after the start phase C/D, SpaceTech GmbH delivered the CDR data package for the frequency reference unit to Airbus and DLR. The co-location took place on the 25th and 26th of July 2018 at the SpaceTech premises in Immenstaad, Germany. All RIDs have been closed and no showstoppers for the CDR have been found. The engineering model has been built and its final testing phase has started.\nAfter the successful operation of the LRI on GRACE-FO in orbit, the development of the frequency reference unit is the next major C/D development activity for a laser-optical instrument at SpaceTech.\nKey and driving requirements of the FRU are:\n- 5 mW of optical output power at 1645 nm with a laser frequency accuracy and stability of 10 MHz\n- 10 mW of optical output power at 1064 nm with less than 1 MHz linewidth\n- Measurement of every single transmitted pulse with a systematic error of less than 8 MHz\n- Controlling the cavity of the optical parametric oscillator in the main laser\nDLR Site in MERLIN (http://www.dlr.de/rd/desktopdefault.aspx/tabid-2440/3586_read-31672/)\nAnimated in orbit maneuvers of the MERLIN satellite: https://www.youtube.com/watch?v=tmlSAB-ltek\nScientific publication: http://www.mdpi.com/2072-4292/9/10/1052\nDas diesem Bericht zugrundeliegende FE-Vorhaben wird im Auftrag des Bundesministeriums für Wirtschaft und Energie (BMWi) unter dem Förderkennzeichen 50EP1301 durchgeführt. Die Arbeiten sind Teil einer Kooperation zwischen DLR Raumfahrt-Management und CNES beim deutsch-französischen MERLIN-Satellitenprojekt. STI führt die Arbeiten im Unterauftrag der Firma Airbus DS GmbH, Ottobrunn durch. Die Verantwortung für den Inhalt dieser Veröffentlichung liegt beim Autor.\nSpaceTech GmbH (STI)\nAnspechpartner: Dr. Kolja Nicklaus\nTelefon: +49 (7545) 932 84 86","domain":"optical_engineering"}
{"url":"https://www.usbbarcodescanners.org/11/qualities-of-good-bar-code-scanners/","date":"2017-04-30T01:04:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123635.74/warc/CC-MAIN-20170423031203-00213-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9601207971572876,"token_count":380,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__101227136","lang":"en","text":"· A wide working range.\nA scanner that can scan barcodes as close as near-contact or as far away as 17 inches. This barcode scanner also has a 6-foot USB cable, so you are sure to be able to move without a lot of problems while you scan your items.\n· Easy integration.\nScanner that has a number of on-board interfaces that will guarantee easy regardless of the host system being used. Also, because of this USB laser barcode scanner’s plug-and-play feature, you can use it without any hassle as soon as you set it up and connect the cable to the USB port of your computer.\n· Speedy operations while maintaining accuracy.\nA scanner that has has a bi-directional scanner, 650nn visible laser diode light source and a scanning speed of 100 scans per second. This means you will be able to work as fast as you are able to with the LS2208 scanner. However, this does not imply that the accuracy of your work will suffer. A scanner has a high degree of accuracy for capturing 1D barcodes for the first time.\n· Intuitive design for easy handling.\nMost importantly, the design of the best scanner is considered to be intuitive, so your learning curve for using this USB laser barcode scanner model will not be slow or steep. Your safety from injuries while using this barcode scanner is also guaranteed by its sleek and ergonomic design. It is also quite light at 146 grams.\n· Highly durable even with continuous use.\nThe single-board construction of the scanner has passed the 5-foot drop durability tests, which gives proof to the sturdiness of its design. The exit window is also made from tempered and scratch-resistant glass, which enhances the durability of this laser barcode scanner model, even if you use it continuously.","domain":"optical_engineering"}
{"url":"https://www.scannix.com/produit/handheld-radioactive-isotope-identifier-sm1000-copier/","date":"2020-07-03T09:34:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655881984.34/warc/CC-MAIN-20200703091148-20200703121148-00409.warc.gz","language_score":0.9409725666046143,"token_count":347,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__109419607","lang":"en","text":"Already proven in surveys and decontamination activities in Japan, China, and Europe, Innovative Physics’ (IPL) Hot Spot Locator (HSL) Gamma Imaging technology provides much more rapid and accurate visualisation of radiation contamination.\nThe first product to deploy IPL’s Imaging Mask design was the Hot Spot Locator500 (HSL500™), which was developed following the Fukushima Dai’ichi Incident to assist with clean-up operations. Now deployed by decontamination, emergency response, and nuclear management teams across the world, the technology has proven to be quick and accurate in comparison with conventional gamma imaging techniques.\nThe detection speed and ability to locate hot spots of very low radioactivity levels is due to its enhanced sensitivity, while the class leading accuracy of visualising the location of the hot spot is due to advanced image processing techniques developed by Innovative Physics.\nFollowing end-user feedback and extensive field work conducted by IPL globally, IPL began development work on the next generation gamma imaging tools, HSL-Lite™ and HSL-Lite Plus™ which were launched at the start of 2016.\nUtilising IPL’s new Dynamic Imaging Mask (DIM) design, these products maintain the superior speed and sensitivity of the HSL500™, but at less than half the weight of their predecessor. The HSL-Lite™ is 6.5kg and the HSL-Lite Plus™ is 10kg, making them both easily and quickly deployable by a single person.\nFurthermore, the DIM system improves the quality of the gamma image by reducing the background interference not emitted from the gamma source located in the field of view.","domain":"optical_engineering"}
{"url":"https://www.vueav.com/products/projectors/","date":"2024-04-19T00:29:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817249.26/warc/CC-MAIN-20240418222029-20240419012029-00325.warc.gz","language_score":0.8935959339141846,"token_count":445,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__197343893","lang":"en","text":"Drawing upon years of projector manufacture experience, the VUEAV team has a wealth of projection knowledge enabling you to select the right projection technology to meet all specifications and designs.\nA consultative philosophy is firmly at the centre of our thought process rather than that of a one-dimensional manufacturer which we consider the right approach for the customer and their project needs. We have sourced leading-edge projection technologies to power our projection offerings for all specifications and applications.\nVUEAV can convert your high brightness lamp based projector with Laser technology . VUEAV are the official regional service partner for Christie & Norxe.\nFrom the smallest meeting rooms and boutique cinemas to the biggest screens, attractions, and projection mapping spectaculars, there’s a Christie® projector that’s right for your application and budget.\nYou can choose from laser, RGB pure laser, and Xenon illumination, a range of brightness levels and resolutions, and a full suite of lenses. All deliver exceptional image quality, versatility, ease-of-use, and integrate seamlessly with our projection software tools and processing solutions.\nVUEAV are here to help you deliver the best visual experiences. Speak to our expert team for advice on the best projector for your needs.\nWith ultra-short throw and a wide lens-shift range, Fujifilm's revolutionary compact, large-screen projectors offer more ways to create a sense of space.\nFujifilm projectors can be installed in almost any configuration, whether horizontal or vertical, ideal for applications such as museums, theme parks, theatre and stage productions and commercial installations and signage.\nNorxe is pioneering solid-state illumination technology within small platform specialist projectors.\nThe result of this innovation is an industry leading portfolio of compact and rugged projectors displaying incredibly rich and sharp images.\nPerfect for demanding applications where performance and stability are crucial.\nVUE2 offers 3LCD laser performance projectors which come in a wide range of resolutions and brightness levels, for the education, government, corporate, entertainment and digital signage markets.\nThe VUE2 range of projectors not only deliver performance but are also protected with an Industry leading 7-year warranty","domain":"optical_engineering"}
{"url":"https://ctu.z00vdhorseshoe.site/lens-distance-calculator.html","date":"2021-10-16T12:49:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323584567.81/warc/CC-MAIN-20211016105157-20211016135157-00202.warc.gz","language_score":0.902651309967041,"token_count":2766,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__79955050","lang":"en","text":"The calculators below will help you determine the lens focal length you need. It is assumed the camera's sensor has a aspect ratio, the sensor is a common size, and that you will use all the pixels. Or, try our new Machine Vision Lens Calculator instead.\nIt is more flexible, and is smart enough to suggest specific lenses for your next project. Complete the fields below to calculate the aproximate working distance.Pharmacovigilance interview questions\nThis is the distance between the lens and the object to be imaged. These lens calculators are for general purpose entocentric machine vision lenses. Not sure about your camera's sensor size? What more precise results? If your camera or image sensor is in our store, we suggest accessing the calculator via the link on the Resources tab of the associated product page.\nMachine Vision Store. Basic Lens Calculator The calculators below will help you determine the lens focal length you need.\nCalculate Focal Length. Complete the fields below to calculate the focal length of the ideal lens. Field of View Width. Field of View Height. Working Distance distance from lens to object. Sensor Size. Calculate Working Distance.Va unemployment payment delay\nLens Focal Length mm. Calculate Field of View. Complete the fields below to calculate the aproximate field of view. With the exception of lens focal length, the parameters you enter may be in any dimensional unit mm, cm, inches, or whatever. The result will be in the same dimensional unit.\nLens focal length is always in mm. Calculators assume sensor has aspect ratio. First enter your application parameters in Calculator 1. This will help you determine the ideal lens focal length.\nYou're not likely to find a lens having the exact focal length suggested by Calculator 1. Using a common lens focal length, use Calculator 2 to determine the working distance necessary to get your desired field of view.\nBasic Lens Calculator\nOr, use Calculator 3 to determine the field of view resulting from a fixed working distance. Lenses having focal lengths of 6, 8, 12, 16, 25, 35 and 50 mm are commonly available. Using a shorter focal length lens decreases your working distance and therefore captures more light, but the resulting image will be more distorted.\nA 16mm lens is often a good compromise. Keep in mind that a smaller sensor size will increase the working distance. Calculators assume field of view width is in direction of the camera sensor's width.\nIf your field of view's height is greater than it's width, consider rotating the camera 90 degress.Looking for a list of projectors that meet your throw distance and screen size needs? Find Projectors. A projector's distance from the lens to the screen surface is called the Throw Distance. The throw distance and the size of the image it produces on the screen are proportional to each other based on the optics of the lens. As you increase the distance between the projector lens and the screen the image will also increase.\nA projector's distance from a screen and the size of the image it produces are proportional to each other based on the optics of the lens. As you increase the distance between the projector and a screen the image will also increase. If your projector has a zoom lens, the lens can be adjusted to change the size of the screen image without changing the distance of the projector.\nSince each projector lens is different, an online projection calculator tool will help you calculate the size of an image on a screen relative to how far the projector is placed from screen. So for example, the most common projector throw ratio is 2. So if I'm using a projector with a throw ratio of 2. So the throw ratio is a simple formula that let's you easily compute throw distance or image width given that you know one of these measurements.\nA projector zoom lens will have two different throw ratios, one for the minimum zoom setting and one for the maximum zoom setting. A short throw projector is a projector with a lens that has a throw ratio of 0. These projectors are ideal for rear screen applications where the area behind the screen is limited, or for a wall mounted application where the projector will be mounted within 1 or 2 feet from the screen.\nThe goal of these projectors is to produce as large of an image within the shortest amount of space between the projector and the screen. Find a Projector Login. Classroom Interactive Portable. Find a projector based on your desired features and specs. Throw Calculator.\nFor multiple languages, use the Projection Calculator Classic. Subscribe to Updates.For more information on how Epson treats your personal data, please read our Privacy Information Statement. Our projector installation utility can help you find the perfect projector distance and screen size for your room. Epson projectors lead the market with their innovative technology, high quality images and outstanding performance.\nThat screen size is not possible with your current room configuration. That screen size is not possible with your current configuration, please try increasing your required screen size. That screen size is not possible with your current configuration, please try reducing your required screen size. That throw distance is not possible with your current configuration, please try increasing your desired throw distance.\nFor the perfect large scale projector installation, the right lens is vital. Lets get started. Which projector would you like to use for calculations? Select a Projector. Find a Projector.\nThin Lens Distance Calculator\nChoose a projector Select a projector. Add a lens. Back Next. Find a projector Resolution Choose resolution. Screen Size. Throw Distance. Back Find. Select an installation type. Add measurements. Lens shift checker. Screen size inch.Please define your desired specifiacation below and we will filter our selection to show you suitable lens models.\nIf you require any further assistance in specifying your criteria or need additional information please contact us. Select the sensor either by size or by manufacturer and model by using one of the two drop down menus below. We are sorry not to find any lens in our standard catalogue matching your requirements. Please get in touch with us to check about.\nHorizontal mm. Vertical mm. Image Circle mm. Focal length. Working distance. Enter your measurements in columns 1 and 2 - result will be displayed in column 3.\nUse our handy illustration below to identify your measurement criteria by colour code. Working Distance. Measurement unit: mm cm m km. Field of View. Measurement unit: mm cm m. Focal Length. Focal Length mm. Reset optional Filters. Please get in touch with us to check about Alternatives — lenses besides our standard catalogue lens models Modifications - of standard lens models Customized - lens developments Contact-Form.Depth of field is one of the most powerful creative tools in photography and, to help you master it, we've prepared a DoF guide with lots of love.\nRead it and you'll become a truly story teller, I promise:. Depth of Field: The Definitve Guide. In the calculator, just introduce your camera type sensor sizeaperture, focus distance, focal length the real one! This calculator is also available in PhotoPills appextended with an augmented reality view to help you visualize where to focus. Both classic and advanced calculators include an inverse mode DoF to settings.\nJust copy the following lines and paste them within the code of your website, right in the place where you want to embed it:. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp. Hyperfocal near limit: The distance between the camera and the first element that is considered to be acceptably sharp when focusing at the hyperfocal distance.\nDepth of field DOF : The distance between the farthest and nearest points which are in acceptable focus. This can also be identified as the zone of acceptable sharpness in front of and behind the subject to which the lens is focused on.All About Vertex Distance with Calculations\nDOF near limit: The distance between the camera and the first element that is considered to be acceptably sharp. DOF far limit: The distance between the camera and the furthest element that is considered to be acceptably sharp. Depth of Field Calculator in PhotoPills app This calculator is also available in PhotoPills appextended with an augmented reality view to help you visualize where to focus.\nFacebook Twitter Pinterest Tell a friend.Choosing the correct lenses for your security cameras is an important aspect of designing an effective video surveillance system. In an effort to guide your decision, we have created this handy CCTV lens calculator and view simulator. By adjusting the parameters below you can visualize the effects of different lens focal lengths at various distances to a given scene. Contextual help for the parameters is available by hovering the circular help icons.\nSimulator Mode. Calculator Mode. Distance from Target: feet. Lens Focal Length: mm. Disclaimer: The images shown are for the purpose of simulation only, actual results may vary.\nViewable Dimensions: X feet. Did you find this useful? Please share it! Simulator Mode allows you to choose from several different scenarios and visualize the effects of various lenses at a fixed distance.\nThis mode limits the parameters to realistic ranges for a given scene. Calculator Mode allows you to input arbitrary values for the parameters, but does not allow you to visualize the scene.\nThe scene selection available in Simulator Mode only allows you to choose from several scenarios, to better help you visualize your lens selection. The sensor size refers to the size of the imager array. Choosing the incorrect size will have an adverse effect on the field of view calculations, so be sure and check your camera specifications for the correct size. If you are using the Lens Simulator on a product page, this value will be preset for you. This refers to the distance of the camera from the target scene you are trying to capture, measured in feet.\nIn Simulator Mode, the distance is fixed for each scene and cannot be changed. The focal length refers to the distance between the sensor and lens aperture, and determines how wide or narrow your angle of view is. Shorter focal lengths provide a wider angle of view, while longer focal lengths give a narrower view angle, allowing you to zoom in on distant objects. You can manually input a focal length or use the slider to the right of the monitor.\nThese are the dimensions, measured in feet, of the target viewable area dimensional field of view ; in other words, what you will see on your screen. The target area will be calculated based on the distance and focal length, or you can manually input your target area to find out what focal length you would need for that view. Merchant Services.I believe the only way Tello can do better is to work with Sprint to better improve their coverage network.\nWhile I'm in the City, I have no connection issues.How to fix league client\nHowever, service in more remote areas are lacking, such as the Adirondacks. No problems during turnover or since we signed up. Any you cannot beat the prices and flexibility. The online interface just works. If you have a Sprint phone and a Sprint SIM, just bring it over. Activation happens in under a minute. The network is as good as the postpaid Sprint network. I use this for a backup phone. Make sure you use your phone at least once in 3 months, leave it on airplane mode and on wifi otherwise and you have a backup phone that you can turn on and use in an emergency.Cornstarch nails\nThis has been a great cell phone service and very affordable for my family. My two sons are in college and they have Tello, so with that, thank you for the awesome service and for taking care of us!!!. Their customer service is outstanding, if you ever have to call them a real person answers the phone and makes sure you are satisfied before you hang up. Love love love this company My phone recently suffered water damage, so I bought a new one and tried to switch service over.\nThe website said I needed a new SIM card, but I didn't believe it because both phones take nano Sprint SIMs. I contacted support via chat, and they were able to explain not only that the website was correct, but that different model phones require different SKUs of Sprint SIM card to operate on the Sprint network. Support was very fast and polite, and the prices can't be beaten for a light cell phone user like me.\nI highly recommend this company.Micronics flow meter price\nSpecific restrictions and exclusions apply. Please ask your Tello representative about any limitations.\n- Vou tocar no seu corpo baixar\n- Side bag 3d model\n- Man d0834 engine specs\n- Mixzote kikuyu mix\n- Hcat meaning car\n- Division 2 snitch location today 2020\n- Hikvision vs dahua nvr\n- Aib. bibliocom 2007\n- Short form contractor agreement\n- Red light area near habibganj\n- Mainpuri block list\n- Farmacia della gala mario franco a san paolo bel sito foto e\n- Kendo mvc grid bind to model\n- Funny riddles\n- Important theorems in mathematics class 9\n- Nissan frontier alarm keeps going off\n- Disciplinary case examples\n- Human pet fiction stories\n- Haggeby white\n- Ajm bahu ban ja rajputana ki download mp3","domain":"optical_engineering"}
{"url":"https://eng.hp.gov.cn/2020-02/10/c_455759.htm","date":"2021-06-20T19:42:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488253106.51/warc/CC-MAIN-20210620175043-20210620205043-00620.warc.gz","language_score":0.942250669002533,"token_count":347,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__203214315","lang":"en","text":"Guangzhou Pulisi Technology Co Ltd, a national high-tech enterprise based in Huangpu district, has developed the first machine of its kind in China that uses AI machine vision to produce masks. [Photo by Jia Zihao/southcn.com]\nuangzhou's Huangpu district encouraged local smart manufacturing companies to carry out research and development of automatic equipment for the production of supplies like masks and protective glasses on Feb 5.\nGuangzhou Pulisi Technology Co Ltd, a national high-tech enterprise based in Huangpu dedicated to the application of artificial intelligence (AI) machine vision technology and integrated solutions for machine vision systems, has developed a fully automatic production machine for masks using AI machine vision within three days.\nLin Xiaobo, founder of Guangzhou Pulisi Technology Co Ltd, said that the R&D project started on Feb 6 and that trial production began on Feb 9.\nThe machine, being China's first of its kind using AI machine vision to produce masks, has started mass production on Feb 10, with a single machine able to produce 120 masks per minute and the total amount of masks produced per day exceeding over 150,000.\nCompared with traditional machines, the new machine can achieve long-term operation and occupy less space.\n\"The development process was not easy. We have received a lot of support from the local district, as well as the upstream and downstream industry chain,\" added Lin.\nThe annual production of the new machine can reach 50 sets per month, expecting to help alleviate the shortage of masks in the country.\nApplying modular flexible design, the machine can be used on the production lines of 3C (computers, communications, and consumer electronics) products.","domain":"optical_engineering"}
{"url":"http://www.microscopeworld.com/p-769-jenoptik-progres-c14-microscope-research-camera.aspx","date":"2016-09-26T08:43:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-40/segments/1474738660712.3/warc/CC-MAIN-20160924173740-00238-ip-10-143-35-109.ec2.internal.warc.gz","language_score":0.8127847909927368,"token_count":190,"dump":"CC-MAIN-2016-40","global_id":"webtext-fineweb__CC-MAIN-2016-40__0__47840136","lang":"en","text":"The Jenoptik C14+ camera provides quality images and precision in true color and includes ProgRes® CapturePro software. This camera is made for several fields of application including: life science, material science, genetics, metallography, microbiology, mineralogy, pathology, chemistry, cell biology, macrophotography, pharmacy and forensics. View images captured with the C14+ ProgRes® cameras here. The camera plugs directly into the IEEE port on your computer; included software allows you to view a live image on your screen, capture and save both still images or movies, and make measurements, among other features.\nView a ProgRes® camera comparison chart here.\nSwift Microscope World\nThe Swift brand of scopes\nThe Motic brand of scopes\n6122 Innovation Way, Carlsbad, CA 92009\n(800) 942-0528 (US TOLL FREE)","domain":"optical_engineering"}
{"url":"https://dieppehydroponics.com/products/photontek-x-600w-pro","date":"2023-11-30T14:54:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100227.61/warc/CC-MAIN-20231130130218-20231130160218-00053.warc.gz","language_score":0.8833291530609131,"token_count":324,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__89484852","lang":"en","text":"X 600W Pro LED is a perfect solution for home-grow, grow tents, grow rooms and all kinds of indoor cultivations.\nOnly the highest-grade materials and components are used in PHOTONTEK’s LED fixtures. Delivering safe, dependable light PHOTONTEK fixtures have industry leading performance. By perfectly balancing a high quality, full spectrum light with highest intensity PPFD delivered through a multi-bar, Linear design. PHOTONTEK Creates the ultimate ceiling of light for the entire plant growth cycle, making these LEDs the smartest option for a higher and faster return on investment.\nProducing a total PPF output of 1620 µmol/s and a Photon Efficacy (fixture efficiency) of 2.7 µmol/J, X 600W Pro LEDcreates a homogeneous light spread at close distance from the crop canopy, resulting in outstanding results when used in indoor multi-layer cultivation systems, grow rooms and tents.\nWhen compared to regular similar wattage High Pressure Sodium solutions the P-TEK X 600W PRO LED can achieve 30-40% less HVAC capacity and increased yields of up to 30-60%.\nThe X 600W PRO LED is built using high quality and durable PHOTONTEK drivers and top bin LEDs generating an optimized full-spectrum light source ideal for veg and flowering stages.\nThe X 600W Pro is designed with both vegetative and flowering growth periods in mind and the LED may be dimmed, allowing you to adjust PPFD levels produced without losing efficiency.","domain":"optical_engineering"}
{"url":"https://www.innovation360.ca/doug-beckett/","date":"2021-05-05T21:46:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988696.23/warc/CC-MAIN-20210505203909-20210505233909-00161.warc.gz","language_score":0.93722003698349,"token_count":242,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__121471240","lang":"en","text":"Vice-President, Optical Technologies\nTalk Title: Data-Center and Machine-to-Machine Interfaces using Quantum-Dot Multi-Wavelength Lasers and Silicon Photonic Ring Resonators\nDr. Douglas Beckett is responsible for optical system performance and active optical device development at RANOVUS.\nDr. Beckett has more than 25 years of experience developing networking and telecom products, encompassing laser design, crystal growth and optical systems design ranging from WDM PON to ultra-long-haul coherent DWDM transport networks. He received his B.Sc. degree from University of Waterloo, his M.Sc. degree from University of Ottawa, and his Ph.D. degree in solid state physics from Simon Fraser University in Burnaby, British Columbia. Prior to joining RANOVUS, Dr. Beckett held roles at start-up companies and established network equipment manufacturers, including Nortel, Ceyba, Core Optics and Ciena. Dr. Beckett began his career in the Advanced Technology Group at Bell-Northern Research, where he designed Nortel’s first widely-deployed 1550 nm strained-quantum-well DFB laser.","domain":"optical_engineering"}
{"url":"https://longshortreport.com/2018/02/20/unique-computational-tools-discovered-cheaper-smarter-leds-phosphor/","date":"2019-01-19T19:48:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583680452.20/warc/CC-MAIN-20190119180834-20190119202834-00589.warc.gz","language_score":0.9473509192466736,"token_count":327,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__127368785","lang":"en","text":"Unique computational tools discovered cheaper and smarter LEDs phosphor in the latest research performed by a team of engineers from the University of California San Diego.\nWith the help of news phosphor, the research team has devised a novel prototype for the LED light bulbs with white color. The new prototype has discovered a better color quality in the leading material of while LEDs bulbs – phosphor, as compared to many other commercial LEDs available currently in the world’s market.\nLEDs’ key ingredient, i.e. luminous phosphors is the light emitting substance that comes in the form of crystalline powders. It absorbs energy from the closer –UV or blue light and then in visible spectrum, it emits white light by forming a combination of different colors of light. Phosphor is made up of some earth elements that are rarely found, so that they are very expensive, while others are manufactured with a few difficulties and poor color quality.\nTo overcome these issues a team scientists from the Chonnam National University and UC San Diego developed and discovered a new sort of phosphor. The team has made the new substance of its kind by including most of the earth-abundant elements with the help of some industrial methods. The new discovery produces potentially impressive LEDs that provide more vivid and accurate colors.\nStudy’s leading investigator, Prof Shyue Ping Ong from the Jacobs School of Engineering at the UC San Diego stated that, “Calculations are quick, scalable and cheap. Using computers, we can rapidly screen thousands of materials and predict candidates for new materials that have not yet been discovered.”","domain":"optical_engineering"}
{"url":"https://repository.stcloudstate.edu/ece_facpubs/3/","date":"2022-08-17T17:42:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573029.81/warc/CC-MAIN-20220817153027-20220817183027-00411.warc.gz","language_score":0.8296892046928406,"token_count":194,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__62053117","lang":"en","text":"Physics Letters A\nA fiber optic conveyor has been developed for investigating the travel-time difference between two counter-propagating light beams in uniformly moving fiber. Our finding is that there is a travel-time difference Δt = 2vΔl/c2 in a fiber segment of length Δl moving with the source and detector at a speed v, whether the segment is moving uniformly or circularly.\nZheng, Yi; Yao, Aiping; Wang, Ruyong; and Langley, Dean, \"Modified Sagnac experiment for measuring travel-time difference between counter-propagating light beams in a uniformly moving fiber\" (2003). Electrical and Computer Engineering Faculty Publications. 3.","domain":"optical_engineering"}
{"url":"https://cjur.ca/high-resolution-multi-grating-spectrometer-controlled-by-an-arduino/","date":"2021-05-16T10:04:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243992516.56/warc/CC-MAIN-20210516075201-20210516105201-00384.warc.gz","language_score":0.9347801804542542,"token_count":2970,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__76237420","lang":"en","text":"Karl Haebler, Anson Lau, Jackson Qiu, Michal Bajcsy\nCJUR (2017) | Download PDF\nWe present the design for a high resolution triple-grating Czerny-Turner spectrometer for visible and telecom wavelengths, together with results of optical simulations using ZEMAX. Results from the simulations show that one of the most important factors affecting spectral resolution is the focal length of mirrors. Increasing the focal length allows for a greater degree of spatial dispersion of light diffracted from the gratings and also reduces optical aberrations. Radiation of wavelengths around 1550 nm are shown to have very noticeable aberrations in certain designs, evident by a large degree of smudging. Using parabolic mirrors instead of spherical mirrors is demonstrated to have a negligible effect when compared with increasing focal length. The optical simulations and preliminary testing of mechanical components show that it is possible to build a cost effective high resolution Czerny-Turner spectrometer using off the shelf components.\nOptical spectrometry is a process of analyzing the spectrum of light. It has a broad range of applications in areas such as astronomy, chemistry, and photonics. For example, Raman spectrometry may be used to identify the presence of certain molecules in an unknown sample, and Rayleigh scattering spectroscopy may be used to investigate the properties of an individual single walled carbon nanotube . High-resolution spectroscopy capable of resolving spectral features spaced by less than ~10pm is in particular extremely useful for characterizing the spectral properties of solid state quantum emitters, such as self-assembled quantum dots, and semiconductor micro-cavities and photonic-crystal nano-cavities with high Q-factors.\nHere we present the design for a high-resolution Czerny-Turner spectrometer with a focal length as long as 1.5m and three diffraction gratings. While such spectrometers are currently available on the market, they are manufactured in very small volumes, which results in prices exceeding $100k.\nA spectrometer generally consists of a monochromator, which separates the wavelengths of the incident light into different propagation directions, and of a calibrated one- or two-dimensional photodetector, that detects the relative intensities of light at each wavelength. The monochromator most often utilizes a diffraction grating with adjustable tilt, while the detector is usually a high-sensitivity CCD or CMOS camera for visible light spectrometers and InGaAs diode array for telecom wavelengths.\nIn a Czerny-Turner monochromator/spectrometer, the input light is focused through a narrow slit, then collimated by a concave mirror with a focal length f, after which it propagates for a distance f where it hits a diffraction grating. Here, light of different wavelengths is reflected under different angles and, after traveling for a distance f, it is refocused onto the detector with another concave mirror with focal length f.\nOur spectrometer was not fully built since many critical optical components had lead times of several months and would not arrive while Karl was still present at the University of Waterloo. However, thorough optical simulations predicting the capabilities of the instrument were performed using ZEMAX. Additionally, a prototype of a two-axial rotating turret allowing automated swap between the deployed diffraction gratings, which was called the TRISPEC, was built and is reported here.\nMechanical devices such as the TRISPEC, camera holder, mirror holders for 4”-diameter concave mirrors with 50cm focal length, and periscope were custom machined.\nThe acronym TRISPEC comes from TRIple Turret SPECtrometer, and refers to the target design feature that will allow the user to switch between active diffraction gratings. The ability to select which grating is used is important since each grating has a different number of groves/mm, resulting in different degrees of spatial dispersion of light. Therefore, the bandwidth of light which falls on the detector can be controlled by changing the diffraction grating. This allows the user to be able to select between examining a broad spectrum of light, and progressively select narrower bands of light for more accurate inspection of a particular part of the spectrum.\nThe simplest design for a triple turret would be to have, for example, one diffraction grating positioned on each of three faces of a triangle and this is in fact used in some of the commercially available spectrometers, such as Acton SP-2750 from Princeton Instruments. Switching a grating is then be a matter of rotating the triangle by 120°. A problem with this design, however, is that any further angular adjustment (to focus in on a spectral region) would have an axis of rotation which is not about the face of the grating. This causes the grating the partially move out of the incident light beam for more extreme tilt angles, which in turn limits the efficiency and wavelength range of the grating.\nThe TRISPEC design presented here solves this problem by using two axes of rotation. One is for selecting gratings and the other is for fine angular adjustments of the selected grating. A picture and schematic of the TRISPEC are shown in figures 1 and 2. The Parker rotation stage, Kohzu rotation stage, servo motors, and motor control were purchased online. All other materials were custom machined using 6061 aluminum in the student machine shop at the University of Waterloo. The mode of operation of the TRISPEC is as follows. For fine angular adjustments of a chosen grating the Parker stage is controlled. This is done with an STM-200 Stepper Motor, which provides more torque but also requires more current than the NEMA-17. To swap gratings, the Kohzu stage is controlled with the NEMA-17 motor. Both motors are controlled by an Arduino Uno and an Adafruit Motor shield. The motor shield is used since the amount of current outputted by the Arduino is not enough to power the motors. Connecting an external DC power supply to the motor shield permits higher power control of the servo motors, as well as control with useful waveforms resulting in microstepping and double coil steps. Using the Motorshield with 1.2 A and 8V is enough to operate the TRISPEC. How the TRISPEC fits in to the entire design of the spectrometer can be seen in Fig. 8.\nAnother important mechanical part of the spectrometer is the Periscope. In many optics labs, the beam height above optics table is kept at ~10 cm, as this provides a good compromise between mechanical stability of the beam steering components and convenience for manual alignment. However, given the large are gratings dictated by the long-focal length of the spectrometer and the use of two rotation stages for the grating turret, the resulting optical axis of the instrument is at roughly 17 cm. Therefore, a device is needed to raise the input beam from the optics table. The design for the Periscope is shown in figure 3. A parabolic mirror is chosen over a plane mirror so that the periscope may be used to raise the optical axis as well as focus the input light with minimized chromatic and spherical aberration. Adjustment rods and an XY adjuster are used since they allow for fine positioning of the parabolic mirror so that light very precisely passes through the entrance slits of the spectrometer.\nIn addition to prototyping several devices necessary to construct the spectrometer, thorough simulations using Zemax Optic Studio were performed to assess the effectiveness of various design decisions. Decisions include choosing parabolic or spherical mirrors, the number of groves/mm of a diffraction grating, the focal length of mirrors, and the geometry of the components (i.e., the spacing between mirrors and TRISPEC, entrance slit and mirrors, etc).\nFigures 4-7 summarize the results from the ZEMAX simulations. Figures 4 and 5 were generated using 75 mm diameter, 500 mm focal length silver coated spherical mirrors, a 1” diameter 30 mm focal length achromatic doublet, and a 4 mm initial collimated waist of light. The spectrometer was designed in sequential mode in ZEMAX. This allows for fast and precise positioning of optical elements. However, only one wavelength of light may be analyzed at a time in sequential mode, so the whole design was converted to non-sequential mode for multi-wavelength analysis. In non-sequential mode, the spectral resolution can be more effectively studied since comparing two wavelengths side by side allows one to see the effects of optical aberrations and dispersion due to different gratings more clearly. Figures 5 and 7 show graphically what the signal processing software to determine intensity of a certain wavelength would do. The graphs show the sum of the irradiance along a column of pixels. This is useful since in practice wavelength is determined by which column of pixels light is incident upon. If the two blue spikes are clearly spatially separated, then that is an indication that there exists distinct spectral resolution between the two wavelengths. How symmetrical the two peaks are indicate to what extent optical aberrations are present. The simulations show that a high degree of smudging results from using long wavelength light (~1550 nm wavelength) with diffraction gratings of 1200 groves/mm or higher. Intuitively, one might expect the greater amount of spatial dispersion resulting at longer wavelengths to positively contribute more to spectral resolution than any negative side effects such as aberrations would. However, the increase in full width 1/10th maximum cancels out the positive effects that greater dispersion would have on spectral resolution.\nFull width 1/10th maximum is a measure of how horizontally concentrated light energy is on the detector. It is the spatial distance of the irradiance going from 10% of its maximal value, to its maximal value, and back down to 10% of its maximal value along a horizontal axis. The full width 1/10th maximum is relatively large for 1550 nm wavelength light and a 1200 groves/mm grating. Therefore, this combination of wavelength and gratings should be avoided. An important conclusion from these simulations is that full width 1/10 th maximum is mainly a function of wavelength and not number of lines/mm of the diffraction grating. For example, the full width 1/10th maximum does not change significantly when using either 1200 or 1800 lines/mm. However, prohibitively large full width 1/10th maximum occurs when using ~1500 nm light. One might expect that with a higher rules/mm diffraction grating more aberrations (such as smudging) would occur since light is dispersed at greater angles. This effect is noticeable but is not nearly as dominant as the effects of wavelength are. Figures 6 and 7 show the effects of focal length on spectral resolution. Clearly, with greater focal length there is more distinct separation of wavelengths. All of the figures show light of 852 and 852.01 nm wavelength. Figure 7 shows that with greater focal length asymmetries in the light hitting the detector are reduced. This is because a smaller tilt of the diffraction grating is needed with higher focal lengths. Less tilt means the light is better able to remain collimated. Figures 6 and 7 also compare the effects of using a parabolic as opposed to spherical mirror. The reduction of spherical aberrations resulting from using parabolic mirrors is negligible, since greater focal lengths have a much more dominant effect in improving spectral resolution.\nSummary and conclusion\nA high spectral resolution spectrometer was designed and several main components of it were prototyped. Complete construction of the spectrometer was not possible since critical optical components would not arrive in time. However, thorough ZEMAX simulations were performed for the high resolution spectrometer as well as multiple other configurations. The ZEMAX simulations show that spectral resolution is directly proportional to focal length. Additionally, optical aberrations are reduced with shorter wavelengths of light (850 nm vs 1550 nm). One part of the spectrometer which was built is the TRISPEC. This device allows the user to select one of three diffraction gratings to be active, as well as finely adjust the angular position of the selected grating about the face of the grating. This device is controlled by two servo motors, an Arduino Uno, and an Adafruit motor shield. Looking forward, decisions must be made as to whether a composite grating system as opposed to a single grating on each face of the TRISPEC will be used. This decision would affect how the TRISPEC is built. The presented model was built to allow a composite grating to be attached. This is so that off the shelf gratings can be used and also to make the design more affordable. In order to build a spectrometer with the highest spectral resolution, long focal lengths such as 152 cm (60”) should be used. This would also reduce optical aberrations. Ideally, parabolic mirrors would also be used, but the effects of focal length are much more dominant than the type of curvature. With these design decisions in mind, a cost efficient spectrometer which minimizes aberrations and provides high spectral resolution can be built.\n- T. Heinz, “Rayleigh Scattering Spectroscopy”, Topics in App Phys, vol. 111, pp. 353-369, 2008.\n- H. Butler et al, “Using Raman spectroscopy to characterize biological materials”, Nature, vol 11, pp. 664-687, March 2016.\n- R. Warburton, “Single spins in self-assembled quantum dots”, Nature, online, May 2013.\n- I. Mukherjee, G. Hajisalem, R. Gordon, “One-step integration of metal nanoparticle in photonic crystal nanobeam cavity”, OSA, Vol 19, pp 22462-22469, 2011.\n- M. Czerny and A. Turner, “Über den Astigmatismus bei Spiegelspektrometern,” Z. Phys. A 61, 792–797 (1930).","domain":"optical_engineering"}
{"url":"https://www.georgiaunderground.net/products/cx08637800-undeground-fiber-optic-cable-sheave.html","date":"2020-05-29T11:27:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347402885.41/warc/CC-MAIN-20200529085930-20200529115930-00307.warc.gz","language_score":0.8181169629096985,"token_count":184,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__37682658","lang":"en","text":"Underground Fiber Optic Cable Sheave\nSpecialy designed in cooperation with Alcoa Fujikura Ltd. for guiding fiber optic or CATV cable safely and efficiently. Condux Cable Sheaves feature an innovative hanger arm that eliminates the possibility of cable coming off the sheave or binding against the support arm. With the removal of a pin, the hanger arm seperates and allows cable to be slipped in easily, even at midpoints.\nAllows for a gentle cable arc. Aluminum sheave construction means durability with less weight. Maximum capacity is 1,500 lbs (6,672 N).\nThe Underground Fiber Optic Sheave has all the features of the Overhead Sheave but with an additional second arm for convenient tie-off. Replacement Sheaves available.\nSheave size 24\" O.D.\n|08637800||Underground Fiber Optic Cable Sheave|","domain":"optical_engineering"}
{"url":"https://inclinometer.blogspot.com/2007/07/projectors-with-ease-of-use-and.html","date":"2018-07-16T18:18:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589417.43/warc/CC-MAIN-20180716174032-20180716194032-00437.warc.gz","language_score":0.861136257648468,"token_count":632,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__75716456","lang":"en","text":"Canon offers three new LCD projectors that provide the perfect solution for portable large displays\nThe new LV-7265, LV-7260, and LV-X7 projectors provide crisp, clear and bright projections, with ease-of-use and advanced features to maximize professional presentations\nSingapore, – Canon is proud to announce the launch of three new feature-rich projectors - the LV-7265, LV-7260, and LV-X7 that provide small and home office users, government corporations and corporate users bright and high-quality XGA images.\nThe stellar blend of an extremely short throw distance and a powerful, yet versatile, 1.6x Canon wide-angle zoom lens, ensures bright \"large-screen\" high-fidelity images. The new LV projector series are well-suited for presenting graphics and video from laptop, videos from DVDs and VCRs or even live images from the Canon RE-455X Visualizer, which can easily be connected to Canon’s digital camcorders and digital cameras for fast, seamless video projection.\n“In today’s business environment, customers not only expect advanced features in the projectors to make great presentations, but also want innovative user friendliness that makes delivering an impactful presentation easier.” says Andrew Koh, Director and General Manager of the Consumer Imaging and Information Division at Canon Singapore Pte Ltd. “Canon’s new range of LV projectors effectively meet these needs and showcase our commitment to technological research and design as these projectors are affordably engineered to provide clear and bright images with versatile ease of use for the presenters themselves.”\nCanon's new LV-7265, LV-7260 and LV-X7 Projectors output high-quality XGA (1024 x 768) resolution imagery and also support UXGA (1600x1200) and SXGA (1280x1024) resolution display through high-quality compression.\nThe top-of-line LV-7265 Projector delivers powerful 2500 ANSI Lumens brightness and is suited to use in larger meeting rooms, boardrooms and rooms. The LV-7260 provides 2000 ANSI lumens whilst the LV-X7 provides 1500 ANSI lumens. With powerful lumens brightness, projections are characterised by clear images and text, even in daylight or adverse ambient light.\nClear and bright projection\nTo effectively eliminate flare, ghosting and distortion that can degrade images and distract audiences, the projectors are fitted with anti-glare coating and twin aspherical optical elements.\nAll three projectors also feature flexible image settings with five automatic image modes (Presentation, Video, Cinema, Standard, sRGB) and manual settings for each mode to create custom presets to accomplish the perfect presentation.\nOn top of that, the LV-7260 and LV-X7 projectors feature Vertical Keystone Correction to eliminate trapezium distortion in spaces where the projector cannot be positioned perpendicular to the screen. The higher-end LV-7265 performs this task automatically using a built-in tilt sensor.","domain":"optical_engineering"}
{"url":"https://www.tanziilaat.com/product/endoscope-wifi-inspection-camera-3-5-meter-cable/","date":"2023-09-22T21:46:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506423.70/warc/CC-MAIN-20230922202444-20230922232444-00446.warc.gz","language_score":0.7205831408500671,"token_count":389,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__147398940","lang":"en","text":"Endoscope wifi Inspection Camera 3.5 Meter adopts high-quality material with wide compatibility which can support Android & IOS Smart Devices. APP name “wifi check”.\n• Can record video and audio, files will be directly stored on your phone\n• Convenient observation and follow-up analysis\n• Light button used to control 8 LED lights to work in dark areas\n• IP68 waterproof camera\n• Can be quickly connected to various types of smartphone\n• Ideal for intraoral camera systems, underwater camera, waterproof micro-cameras, motor vehicle detector, sewer pipeline detector, search and rescue, criminal and customs detector, archaeological detection, PCB detection, home care, aviation and space industries, care and tractors industries, petroleum drilling industries, construction, and so on.\nLens Diameter:8.0MM 2.0M Mega Pixel Resolution 1600×1200 30fps View Angle:70 degree Focal distance: 4-10CM. Waterproof level: IP68 (Not wifi device) Exposure Light Automatic 8pcs adjustable LED lights waterproof.\n- Model: F150\n- Lens diameter: 8.0mm\n- Resolution: 1600X1200\n- Sensor size: 1/5 inch\n- View angle: 70°\n- Frame rate: 30fps\n- Focal distance: 3-6CM\n- Waterproof: IP68 (ONLY CAMERA)\n- Working temperature: 0°-70°C\n- Power: built-in 500mAh lithium battery\n- Working time: 90 minutes\n- Image format: MJPEG | Video format: AVI\n- APP name “wifi check”\n- Color: Black\n- Warrant 30 Days\n- Made: China\nWhat in Box?\nEndoscope wifi Inspection Camera 3.5 Meter Cable\n- Retail package","domain":"optical_engineering"}
{"url":"https://www.everythingtruckparts.com/products/custer-products-hf18r-phd","date":"2021-01-24T13:07:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703548716.53/warc/CC-MAIN-20210124111006-20210124141006-00326.warc.gz","language_score":0.8675260543823242,"token_count":164,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__131765334","lang":"en","text":"Custer Products LIMI HF18R-PHD Red Strobe Light MAG/LED\nItem Typically Ships within 1 Business Day\nBrand-New Genuine Parts - Everytime\nNo Minimum Order Requirements\nCuster Products LIMI HF18R-PHD RED LIGHT Battery Operated LEDs 18-diode LED safety flashers with 2 HD magnets attached to the back. This is our standard 18 diode LED flasher \"beefed up\" with heavy duty magnets. Approximately 6-1/4\"wide x 4\" high. These will flash up to 32 hours (or more) with 4 (AA) batteries. 18 super bright LEDs that can be seen up to a mile away, can be switched from \"steady on\" to \"flashing\" by pushing button on back.","domain":"optical_engineering"}
{"url":"http://mylesgqrs014.tblogz.com/2-aspects-individuals-do-certainly-not-have-information-about-lasik-eye-treatments-5374085","date":"2019-01-22T02:37:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583823140.78/warc/CC-MAIN-20190122013923-20190122035923-00458.warc.gz","language_score":0.953583836555481,"token_count":882,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__74067299","lang":"en","text":"2 Aspects Individuals Do Certainly Not Have Information About LASIK Eye TreatmentsThe eye can be analyzed with relative ease regarding both its function and its structure. A functional evaluation consists of the capability to relocate the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be evaluated in numerous methods. The patient might be asked to determine illuminated letter or things of varying sizes on what is called the Snellen chart.\nAlternatively, the examination of the structural part of the eye might be made in numerous ways. Tension within the eyeball is determined by a \"tonometer.\" In specific illness, especially in glaucoma, the stress in the eyeball is increased noticeably.\nIt ought to be well remembered that a client with an eye issue might have other issues. Often other physical conditions are primary and impact the eye as a effect. The appearance of the eye can inform the physician and the patient to troubles in some disturbances of other parts of the body even prior to other signs present themselves.\nConsequently, one's reliance on sight is highlighted when one faces a possible or short-lived permanent loss of this essential sense. When restorative steps are looked for, certain kinds of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to encourage decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgery is another kind of vision correction. The only difference is that with this kind of surgery, one's vision is fixed completely.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to understand. Most likely, the main reason why this kind of eye surgical treatment has actually ended up being well accepted is because most of its cases had been effective.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is among the most delicate portions of the eye, most individuals state that the operation can be extremely pop over to these guys risky.\nIn other words, a simple mistake could almost trigger an individual's lifetime loss of sight. For this reason, it is essential to consider lots of elements prior to choosing whether LASIK eye surgery is the right restorative step one needs to go through. More about the author\n2. It is not a perfect treatment\nLASIK eye surgical treatment might remedy your vision however it does not always suggest that it can offer you a perfect vision. Even if statistical reports reveal that 70% of the clients might have 20/20 vision, this does not always mean they have ideal vision also.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical treatment the method many people see it\nAlternatively, the assessment of the structural part of the eye may be made in several methods. It needs to be well remembered that a client with an eye issue might have other problems. Often other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can alert the patient and the physician to troubles in some disturbances of other parts of the body even prior to other signs present themselves.\nLike its concrete equivalent, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://www.webstaurantstore.com/scratch-resistant-safety-glasses-eye-protection-black-with-indoor-outdoor-lens-for-overhead-work/444EHB50SFST.html","date":"2023-03-21T18:12:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943704.21/warc/CC-MAIN-20230321162614-20230321192614-00200.warc.gz","language_score":0.9276572465896606,"token_count":894,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__179043089","lang":"en","text":"Wrap around style glasses fir me best, and these are no exception. They aren't dark enough for all day work outside, but they're a good solution if you constantly switch between working indoors and outdoors. The foam gasket on the sides could be a little bit further back, it obstructs my vision just a little.\n$2.38/EachShips free with Plus\n- Anti-scratch coating helps maintain clarity\n- Single, wrap-around indoor / outdoor lens for sleek look\n- Integrated nose piece provides a comfortable fit\n- Soft polyurethane foam sealing lining the top of each polycarbonate lens\n- Spatula-style temple design\n- 99.9% ultraviolet light protection\n- Meets or exceeds ANSI Z87.1+ standards\n- Ideal for use in framing, insulation installation, duct work, and painting\nCordova Safety Products EHB50-FST Specs\n- Shipping Weight\n- 0.07 lb.\n- One Size Fits Most\n- Safety Glasses\nCordova Safety Products EHB50-FST Details\nThese stylish safety glasses are ideal for use in framing, insulation installation, duct work, and painting. Boasting a scratch-resistant material, these glasses provide clear vision no matter what the task. With a soft polyurethane foam sealing lining the top of each lens, these one-size-fits-all glasses effortlessly prevent debris from entering the eye area when working overhead.\nEach pair features a single wrap-around lens that blocks out 99.9% ultraviolet light, making it perfect for both indoor or outdoor use. The polycarbonate lens is held in place by a black frame with spatula-style temple design for a snug fit around your ears. An integrated nose piece is included with each pair of these modern safety glasses for superior comfort during wear. Additionally, these glasses meet ANSI Z87.1+ standards to ensure that your employees are well protected.\nResources and Downloads for\nCordova Safety Products EHB50-FST\nA PDF viewer is required to view this product's information. Download Adobe Acrobat software\nPeople Talk About:glasses eyes great safety wear eye lenses outside protection working\nWorth the extra price. Having indoor/outdoor lens mean the people working in the field for our construction business are more likely to wear them. Very pleased with this purchase!\nThese are great safety glasses. The are perfect for outdoor use as they filter over 99% of uv rays. The are very comfortable to wear\nIf you are doing any work that your eyes may be at risk it is important to wear some type of eye protection. The lenses on these safety glasses feature scratch resistant technology and they offer 99.9% ultraviolet light protection.\nGreat to have for dusty areas or working with anything that might irritate eyes and also do have uv so work for sunglasses, though not dark enough to take care of all the glare from sun. Excellent shape and design and looks really cool and still does work.\nThis safety glasses does the job indoor and outdoor for overhead work. It has good quality and im happy to find this product in webstaurantstore\nThese are neat I really like them they're great for when you're doing cleaning going from back-and-forth from inside to outside can't go wrong with the price\nGreat economical safety glasses that are comfortable to wear and fits nice with a foam strip above eye area. The are is not real wide but may do the job for small faced people.\nThis protection glasses are veri light and the looks is nice. The internal coverage is soft and the lenses are anti fog. You can see well in and outside.\nI love this style of protective eye glasses! I use them all the time when I do personal ice carvings! They protect my eyes from flying shards of ice!! Stay in place for hours!!\nUser Submitted Photos & Videos\nLeave a review of this product!\nIf you've used this product, log in and leave a review to tell us and other customers what you thought about it.Login or Register","domain":"optical_engineering"}
{"url":"https://www.aquariumforum.com/tags/environment-friendly/","date":"2022-01-19T01:46:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301217.83/warc/CC-MAIN-20220119003144-20220119033144-00545.warc.gz","language_score":0.8727734088897705,"token_count":131,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__242283206","lang":"en","text":"1.Waterproof combination of aquarium lights which is independently developed by our company produced a new generation of aquarium lights, is the latest generation product which can truly achieve the industrial product standards\n2.New lights can replace 3-5 times power of high-pressure sodium light\n1. Use high efficient 1w LED as the light source, Based on 112x1W high power LEDs.\n2. Wide beam angle: 120 degree\n3. Unique heat dissipation device: thermostatically controlled fans to keep LED light cool.\n4. Built-in CE approval Power supply, plug and play\n5. Environment-friendly: no mercury and","domain":"optical_engineering"}
{"url":"http://flor6581oajblog.tblogz.com/2-facts-you-do-not-understand-about-lasik-eye-surgical-treatments-4925682","date":"2018-03-23T04:53:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257648178.42/warc/CC-MAIN-20180323044127-20180323064127-00106.warc.gz","language_score":0.956933319568634,"token_count":900,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__1713617","lang":"en","text":"2 Facts You Do Not Understand About LASIK Eye Surgical TreatmentsThe eye can be analyzed with relative ease as to both its function and its structure. A functional examination consists of the ability to relocate the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye might be tested in several methods. The client might be asked to identify illuminated letter or objects of varying sizes on what is known as the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye might be made in several ways. Tension within the eyeball is measured by a \"tonometer.\" In certain illness, particularly in glaucoma, the stress in the eyeball is increased significantly.\nHowever, it must be well bore in mind that a client with an eye issue might have other issues also. Typically other physical conditions are main and impact the eye as a repercussion. The look of the eye can inform the patient and the physician to difficulties in some disturbances of other parts of the body even prior to other signs present themselves.\nSubsequently, one's dependence on sight is emphasized when one deals with a possible or momentary long-term loss of this crucial sense. For this reason, when corrective procedures are looked for, certain types of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some individuals are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to encourage decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another form of vision correction. The only difference is that with this kind of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgical treatment, the refractive mistakes in important link the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people must understand. Probably, the main reason why this kind of eye surgery has actually ended up being well accepted is because many of its cases had actually been successful.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nDue to the fact that LASIK eye surgical treatment includes the operation discover this info here of the retina, which is among the most delicate parts of the eye, the majority of people state that the operation can be go to these guys extremely risky.\nIn other words, a simple error could practically trigger an individual's life time blindness. Hence, it is crucial to think about lots of aspects before deciding whether LASIK eye surgery is the best corrective measure one needs to undergo.\n2. It is not a ideal treatment\nLASIK eye surgery may fix your vision however it does not always suggest that it can offer you a twenty-twenty. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily imply they have perfect vision also.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the perfect eye surgical treatment the method the majority of people see it\nOn the other hand, the assessment of the structural part of the eye might be made in numerous methods. It must be well remembered that a client with an eye issue may have other issues. Frequently other physical conditions are primary and affect the eye as a repercussion. The look of the eye can signal the doctor and the patient to troubles in some disruptions of other parts of the body even before other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://checkpointsignaling.com/5-gl-ye-broth-at-1-9-mlmin-residence-time-185-m-a-diagram-of","date":"2020-04-07T16:21:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371803248.90/warc/CC-MAIN-20200407152449-20200407182949-00390.warc.gz","language_score":0.9350419640541077,"token_count":684,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__43747263","lang":"en","text":"5 g/L YE broth at 1.9 ml/min (residence time 185 m). A diagram of\nthe CDC reactor system as it was used for this study is available from the manufacturer at http://www.biosurfacetechnologies.com. After 24 h of culture under these conditions, one coupon holders was again replaced Small molecule library nmr aseptically, and examined by epifluorescence microscopy. After 48 h of continuous culture, all remaining biofilm coupons were removed and examined by epifluorescence microscopy. Viability Staining The biofilms on disks in batch culture were examined by epifluorescence microscopy using the BacLight viability staining kit (L-7012, Invitrogen). Staining was performed by covering the inward face of the glass coupon in the stain mix in a sterile 12 well plate, and washing with sterile water after the appropriate time. Five minutes with a\nconcentrated stain mix (1.5 μl of each stain per ml) was found to be sufficient. Stained glass coupons were mounted on cleaned glass slides, and observed by epifluorescence microscopy using an Axioplan 2 microscope (Carl Zeiss, NY) equipped with appropriate filter sets (41002, 41017, Chroma Technologies), and an Xcite-120 illuminator (Exfo Life Sciences, Ontario, Canada). Images were captured using an SBIG 1402-XME (Santa Barbara Instruments, Santa Barbara, CA mounted on a 1× EVP4593 supplier c-mount adapter, with a 0.2 second exposure. The monochrome images were captured using the CCDops software supplied with the camera. Captured images were merged using ImageJ http://rsb.info.nih.gov/ij/. The camera ccd was cooled maximally for all fluorescence imaging (20°C below ambient). Whole image contrast and brightness enhancement was used to optimize for publication only. Visible light\nimaging Still images from swarming plates and time lapse Ruboxistaurin clinical trial movies were captured with a CoolSnapFX (Roper Scientific) cooled ccd camera using ImagePro MC Express on a Zeiss Axioplan 2. Biofilms were examined using 1% Crystal Violet as a simple stain. Color images were captured using a Kodak DC290 digital camera, using the Kodak image capture software provided. Macroscopic colony images and wetting Silibinin agent images were collected using a Fuji FinePix 5700 digital camera. Colonies were photographed using a black velvet cloth to damp reflection. To capture images of the wetting agent, the plate was illuminated using diffuse reflected light, and angled to capture the refractive quality of the layer. For all microscopy, calibration images were captured with all microscope lenses of a stage micrometer, and Image J was used for measurement and scaling. Results Swarming motility Our laboratory developed a swarming agar plate based on previous growth and swarming experiments in V. paradoxus and P aeruginosa. Our swarming agar used for initial studies used 0.5% agarose to solidify the plate, the freshwater media (FW) base previously used by Leadbetter and Greenberg , with 0.2% glucose as a carbon source. Previous work in P.","domain":"optical_engineering"}
{"url":"https://apextronic.in/ir-thermometer/","date":"2022-10-01T14:00:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030336674.94/warc/CC-MAIN-20221001132802-20221001162802-00616.warc.gz","language_score":0.9000399112701416,"token_count":257,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__65773944","lang":"en","text":"We are a leading infrared (IR) thermometer technology providing Company in India. Our elegantly designed digital infrared thermometers are extensively used in repair and maintenance services, industrial applications, research works, HVAC, and construction works. Ever since COVID-19 attacked the entire world, IR thermometers are now also being used for contactless checking, a body temperature of people entering in offices or any other workplaces and public places. Our huge range of IT thermometers provides people options, to choose a variety of models for taking a variety of temperature ranges.\nA digital IR thermometer gun unit has an LCD screen, processing unit, optical unit, and temperature sensor signal amplifier unit. An optical unit captures, Infrared energy that is focused on the sensor, which then translates energy into an electric signal. This signal is shown on the LCD as a digital temperature.\nAn infrared Thermometer is a compact unit used for measuring, the surface temperature of any object from a safe distance. Having an appearance similar to a gun, these are extensively used for measuring the surface temperature of hazardous, hot, or hard-to-reach objects. Also known as a laser thermometer or non-contact infrared thermometer, it uses thermal radiation emitted by an object for determining the surface temperature","domain":"optical_engineering"}
{"url":"https://www.leddisplay.se/produkter/reservdelar-tillbehor/reservdelar-nova-produkter/reservdel-light-sensor-ns060-5a/","date":"2023-06-04T21:37:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650264.9/warc/CC-MAIN-20230604193207-20230604223207-00686.warc.gz","language_score":0.7285470366477966,"token_count":184,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__268961750","lang":"en","text":"Reservdel Light Sensor NS060-5A\nThe NovaStar NS060 light sensor allows you to monitor and automatically control the brightness of your LED display.\nIn conjunction with the corresponding hardware (see Features), the sensor measures the ambient brightness and controls the brightness of the LED display by means of the individually adaptable programming. Has from 2018 replaced the older light sensor model.\nCable length: 5 meters – can be extended up to 100 meters\nCompatible with NovaStar MSD300, MSD600, MCTRL300,MCTRL600, PSD100 and MFN300.\nOperating voltage: 5 Volt\nWorking temperature: -20° to 75°\nBrightness control range: 0 – 65635 Lux","domain":"optical_engineering"}
{"url":"https://techkills.com/47-camera-rifle-sniper/","date":"2021-12-02T13:54:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362219.5/warc/CC-MAIN-20211202114856-20211202144856-00560.warc.gz","language_score":0.9746660590171814,"token_count":113,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__98035108","lang":"en","text":"Here’s a fun little product. This new Russian-made camera is pretty much designed around a gun. If you know anything about photography, you’d know that when shooting with a very long telephoto lens (used to flatten the image), it can be very difficult to keep the camera steady. So, this Camera design uses the same technology that a sniper would use to keep his gun completely steady. It’s a very rugged, cool looking camera that seems a lot more lethal than it is.\nClick here to view the website","domain":"optical_engineering"}
{"url":"https://www.xayav.com/maskcreator","date":"2023-09-30T06:39:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510603.89/warc/CC-MAIN-20230930050118-20230930080118-00078.warc.gz","language_score":0.8824910521507263,"token_count":1062,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__191939248","lang":"en","text":"LCD/DLP image output via HDMI\nAllow customization in display area and grid numbers\nAutomatic mask generation\n4x interpolation on the measuring data\n4x measuring grid resolution\nCan be Gaussian blurred into fully resolution mask profiles without pixelization\nOur patent pending software controls the display to show patterns that from 0-255 brightness for each grid. Then the software will take all the data (255 x the number of the total grids) into account, and use advanced machine learning algorithm to find the best possible mask profile for your printer.\nIn this way, the MaskCreator can compensate the differences in light output no matter it's from the light source, the display panel, light path or the video board/driver.\nWe have also designed the patterns in a way that only the sensor is exposed to the UV light, not you.\nFully Normalized Light Output\nwhat is mask?\nA mask is a digital gray scale image layer created by measuring every spot of the light output on the LCD panel.\nFigure 1. Design diagram of XAYAV MODEL V\nThe light output, without a mask, is not uniform across the entire LCD panel during printing. Figure 2 shows an example of how the light out looks like. The higher the value means the brighter the light output. Figure 3 shows a 2D version of the same light output profile as Figure 2.\nFigure 2. An example of un-masked light output. Figure 3. 2D version of the same light output.\nWhy does a mask necessary?\nA nonuniform light output means you do not have the same UV intensity across the entire LCD panel. Normally, for a MODEL V, the center of the LCD is brighter than the edge area. The difference sometimes can be as high as 25%. If you are printing something fairly large, it means either there is part of your print are over-cured or under-cured. Over-curing usually causes loss of details and Under-curing usually will lead to printing failures.\nWith a mask image layer displayed on the LCD together with your printing images, the light output can be close to 100% uniform if the mask is properly made. Figure 4 shows the comparison between a properly-masked print sample and un-masked print sample. Printing without a mask on MODEL V is tested to be just fine if you are not looking for an absolutely perfect print. A lot of our print sample is printed un-masked. However, a mask is always recommended to ensure the best printing quality possible.\nFigure 4. An example of a masked print sample (on the left) and un-masked print sample (on the right).\nThe tests are not preformed on a XAYAV 3D printer.\nHow do I use a mask profile?\nYou can download our pre-configured universal mask profile for Creation Workshop and NanoDLP in the DOWNLOAD page. Visit our TUTORIAL pages to learn how to configure the mask profile on Creation Workshop and NanoDLP.\nNOTE that each printer can be slightly different due to certain manufacturing processes. This Mask profile should provide at least 90% uniformity on all MODEL V printers.\nHow do I make a PERFECT mask profile for my printer?\nYou can use XAYAV MaskCreator and its software to make a custom mask profile for your printer. MaskCreator uses a LDR sensor to measure the UV output from your LCD and send the data to its software to create the mask profile. MaskCreator software also allows you to import png. printing files and overlay the mask profile to them. So you can create masked printing files with if you are using printing software other than Creation Workshop or NanoDLP.\nYou can also use XAYAV MaskCreator to create your custom mask profile for other DLP and LCD 3D printers. You can make your own measuring grid for your printer and MaskCreator software will generate a mask profile based on your printer's specification.\nCan I use the MaskCreator on printers other than MODEL V?\nYou can use XAYAV MaskCreator to create your custom mask profile for other DLP and LCD 3D printers. You can make your own measuring grid for your printer and MaskCreator software will generate a mask profile based on your printer's specification.\nWhen and how often should I re-measure the mask profile?\nIt is recommended to re-measure the mask profile when you have replaced, moved or repaired the image displaying unit (DLP unit or LCD panel), the UV source, the UV light guide (such as light hood, optical fiber, optical guide interfaces) or any other parts that may cause changes to the light output. It is also recommended to re-measure the mask profile every 500 hours of printing time as the UV light source and the LCD panel may have noticeable aging effect.\nSpecial thanks to Will Kostelecky, Johnson Yeh and Ralf Rollmann.","domain":"optical_engineering"}
{"url":"https://thetechnewslive.com/2021/09/21/a-solid-introduction-to-macro/","date":"2022-01-18T18:34:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320300997.67/warc/CC-MAIN-20220118182855-20220118212855-00214.warc.gz","language_score":0.9600935578346252,"token_count":1539,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__111968662","lang":"en","text":"While Nikon’s legacy macro lenses would continue to work with the FTZ adapter in the Z system, the new lenses mark another step in Nikon’s promise to offer a broader range of lenses with native functionality in its mirrorless systems. Nikon designed this new lens to be a small, lightweight and compact everyday lens that can be used with Nikon Z full-frame or APS-C mirrorless systems.\nAlthough it is a macro lens, the $ 650 Nikon 50mm f / 2.8 it offers a focal length that makes it a lens that can double-duty, both as a standard lens and as a close-up lens.\n50mm is much wider than the standard 100mm or more normally seen in macro lenses and thus frees this lens from the niche of macro-only work. Therefore, the 50mm f / 2.8 is quite diverse in its functionality and is suitable for both portraits and street photography, for example. But on the other side of the coin, users will note that it lacks some key features compared to the 105mm sibling, most notably the lack of Vibration Reduction (VR) and no specialty. ARNEO coating.\nThe question is, does that matter?\nBuild quality and design\nThe Nikon Z 50mm f / 2.8 macro lens is the smallest and most affordable lens in the duo of macro optics released this summer. While the 50mm “wide” focal length gives users more flexibility as a walking lens, it also means that users will have to get much closer to their subjects to get the true macro shots. The advantage of the focal range is that it will be much easier to get handheld shots without having to worry about camera shake and blur, at least in well-lit situations.\nThe 50mm lens is about half the size and weighs less than half that of its 105mm sibling, making it really compact and travel-friendly. Something that keen eyes may immediately notice is that the 50mm lacks the S-line designation that the higher-end lenses of Nikon’s mirrorless lenses have. This lighter plastic body also makes the lens feel “less”.\nEven though the lens is rated as dust and weather resistant, due to its very small size and mostly plastic exterior, it feels almost like a toy lens rather than something designed to capture incredibly sharp professional images and detailed. Perhaps this means that it becomes a better “everyday” lens, as it will be less likely to stand out during travel.\nLike most newer Z-mount lenses, the focus ring can be programmed to control additional settings such as ISO and exposure compensation when using the AF mode.\nThe last feature worth noting here is that, unlike most modern macro lenses with internal focusing mechanisms, the Nikon Z 50mm f / 2.8 Macro uses a more traditional extendable internal barrel system. The upside to this design element is that it allows the lens to be smaller when the feature is not in use, making it more compact for storage and travel. The downside is, of course, that you have a physically stretching piece that can change your weight distribution.\nFocus and openness\nI found myself dealing with a shorter “working” distance than other macro lenses to get the true 1: 1 macro shots, and when shooting at the 1: 1 focus distance, the maximum aperture was f / 5.6 instead of f / 2.8. While the aperture was a bit surprising, the big point of frustration for me with this lens was the fact that I had to get incredibly close to the subjects for 1: 1 shots. So much so that it was very difficult to frame a photo without blocking. the light and casting a shadow or getting too close to the little insects he was trying to capture that would inadvertently scare him.\nThe autofocus works quite accurately, especially when shooting video. However, when shooting closely for 1: 1 shots, it is important to turn the switch on the focus limiter on the side of the lens, otherwise there will be a very noticeable lag and focus breath present while making adjustments. autofocus.\nAfter many tests, I found that the maximum sharpness was between the range of f / 4 to f / 5.6 with my images. I was surprised to find that the lens was getting a little softer starting at f / 8.\nThe Nikon Z MC 50mm f / 2.8 might not have the added nanocrystal or ARNEO coatings like its 105mm sister, but that doesn’t mean the images produced by it are bad by any stretch of the imagination.\nShooting at 1: 1, the depth of field is very skinny, which was something I personally had to get used to, but I have found it visually interesting and a lot of fun to play. That thin plane of focus aside, once in focus is in, virtually edge-to-edge it’s sharp.\nThe great thing about this lens is that it is also a very nice lens to wander around. I found that while photographing it as a “normal” lens it was quite easy to get incredibly sharp images at f / 2.8 with only small vignettes in the far corners. In that regard, I can see a lot of positives about using this lens as I would any 50mm lens and be happy with the results.\nBelow are some sample images captured with the Nikon Z 50mm f / 2.8 Macro:\nIntroduction to macro photography\nFor photographers who are interested in macro images but are not prepared to invest heavily in niche lenses, this is a great first step in the field. The Nikon Z MC 50mm f / 2.8 Macro lens is capable of being an everyday generalist lens for landscape, street and portrait work, as well as capturing fantastic macro images, which means it can adapt to a variety of situations if you find that the macro is not is not your favorite topic.\nHowever, for the macroeconomic purist, there are probably better options for you and as long as the 50mm f / 2.8 it’s nice, it has limitations.\nAre there alternatives?\nThere is a lot of Macro DSLR lenses available to choose from, including $ 419 Nikon Micro-NIKKOR 55mm f / 2.8 lens which is possibly a better macro lens. That said, there are only a handful of macro lenses designed specifically for the Nikon Z series currently available, including the 105mm f / 2.8 VR S lens some manual Venus optics (Laowa) Macro lenses and IRIX Cine 150mm T3.0 Macro Lens for $ 1,195 which jumps significantly in price.\nShould you buy it?\nYes, if macro photography is new and an interesting path for your work, then the Nikkor Z MC 50mm F / 2.8 Macro It is definitely worth the investment to start taking macro images on Nikon’s mirrorless system and you will be very happy with the results you can capture.\nHowever, if you’ve been shooting macro images for a while and you already have a variety of macro lenses available in your kit, I’d recommend skipping the 50mm f / 2.8 macro and jumping straight to the 105mm f / 2.8 VR S macro. instead.\nReviews – PetaPixel https://ift.tt/2XQJGcN https://ift.tt/2XExift","domain":"optical_engineering"}
{"url":"http://www.icirrus-5gnet.eu/y-kai-h-zhu-resource-allocation-for-multiple-pair-d2d-communications-in-cellular-networks/","date":"2020-09-20T13:32:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400198213.25/warc/CC-MAIN-20200920125718-20200920155718-00683.warc.gz","language_score":0.7963986992835999,"token_count":131,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__195225663","lang":"en","text":"Data used in the above publication (dx.doi.org/10.1109/ICC.2015.7248776) can now be accessed at the Kent Academic Repository\nFigure 3 – Spectrum efficiency of different algorithms in the case of varying the ratio of transmit signal power to the noise power per subcarrier with coherence bandwidth being 15kHz.\nFigure 4 – Probability distribution of the number of subcarriers for one D2D pair\nFigure 5 – The effect of coherence bandwidth on the spectral efficiency\nFigure 6 – Probability distribution of the number of subcarriers for one D2D pair with different coherent bandwidth","domain":"optical_engineering"}
{"url":"https://www.globalparis.fr/en/product/charsolairbig","date":"2021-08-01T11:17:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154175.76/warc/CC-MAIN-20210801092716-20210801122716-00224.warc.gz","language_score":0.8305383920669556,"token_count":127,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__255108888","lang":"en","text":"Waterproof and unbreakable solar charger. Ultra thin, light and very high yield.\nIt incorporates 2 USB outputs as well as a Power tracker optimizing the maximum power point: 2300mA at 5V and 1000 mA at 12V for 500g.\nThis flat and foldable charger uses semi-flexible SunPower solar cells with very high efficiency.\n2 LED indicators on the USB box optimize the sun exposure and the performance of the panel.\n|Dimensions||26 x 16 x 0.1 cm|\n|Output intensity||1000 - 2300 mAh|\n|Color||Yellow / grey|","domain":"optical_engineering"}
{"url":"https://www.ladyshairextensions.com/sale-18596080-dimmable-595lm-led-flat-panel-lights-8w-for-restaurant-wareproof.html","date":"2022-10-03T18:05:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337428.0/warc/CC-MAIN-20221003164901-20221003194901-00512.warc.gz","language_score":0.9069747924804688,"token_count":772,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__239884457","lang":"en","text":"Dimmable 595LM LED Flat Panel Lights 8W For Restaurant Wareproof\n1• The Straight down lighting solution with only 32mm thickness\n2• Super high brightness with low heat\n3• Low cost without light guide plate,which avoids risk of truning yellow\n4• Full certificated external LED driver,Lifud or BOKE brand,FLICKER FREE is optional\n5• No UV, IR and No mercury &lead\n7• CE,ROHS passed, conform to TUV,GS RCM standards\n|Model No.||MQG-LED-136L (S)||MQG-LED-136L (L)|\n|Fixture Size (mm)||595x595x35||1195x295x35|\n|Carton Size (cm)||65x33x65||125x33x35|\nToo few LEDs being used. Too few LEDs (generally 36 or less) means that they have to be driven at a high current to generate the light output needed. Compared with designs using more LEDs, this is less efficient (LEDs perform most efficiently with low drive currents), generates more heat, shortens the life of the LEDs and hastens the lumen depreciation.\nPlastic bodies. The better back-lit panels use a metal body. This is more effective as a heat sink than a (cheaper) plastic body. LEDs generate some heat and this needs to be dissipated if their life is not to be shortened further.\nLight distribution not overlapping. In a good back-lit panel each LED is individually lensed and the lenses are designed so that the light from each LED overlaps the light from its neighbours. This will produce an even lit affect and some resilience in the event that a single LED fails. Poor lens design and a low number of LEDs is likely to decrease the overlap between LEDs and increase the risk of bright and dark spots on the front of the fitting.\nAre the lenses firmly fixed in position? Only time will tell, but the risk is that the heat generated by the LEDs, combined with cheap adhesive poorly applied, will cause the lenses to fall off. The result will be uneven light distribution and possibly glare too.\nBuilt-in driver. Manufacturers can save money by building the driver into the body, but this has multiple drawbacks. It can’t be replaced in case of a problem and there will be no dimming or emergency options. It is a very inflexible approach.\nThe user can adjust the tension of the free-floating tilt to match their body weight. Max Weight Capacity: 150kg. Fully adjustable height with a 360-degree swivel offers a flexible range of motion. This chair can easily adjust the height of the seats according to human spine structure, providing neck, shoulder, waist, and coccyx protection for long hour sitting. The wide padded seat is covered with breathable densely woven polyester fabric that prevents dirt, dust, and food particles from settling into the fiber of this computer chair.\nContact Person: Anna","domain":"optical_engineering"}
{"url":"https://kotudopiku.soundsofgoodnews.com/glass-lasers-book-24011tx.php","date":"2021-05-16T12:14:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991269.57/warc/CC-MAIN-20210516105746-20210516135746-00486.warc.gz","language_score":0.8985085487365723,"token_count":2272,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__123821210","lang":"en","text":"Glass lasers by Karel PaМЃtek Download PDF EPUB FB2\n\"LASERS is a remarkably well written book that should become the standard introductory text on laser physics.\" --Optical and Quantum Electronic News Glass, Ti:Sapph etc.\ngain mediums to really cement what the alphas and lambdas mean in reality. The meat of the exposition is superb, as Siegman's approach is to not only explain each concept /5(22).\nSpringer Handbook of Lasers and Optics (Springer Handbooks) - Kindle edition by Träger, Frank. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Springer Handbook of Lasers and Optics (Springer Handbooks).5/5(1).\nAdditional Physical Format: Online version: Pátek, Karel. Glass lasers. London, Iliffe, (OCoLC) Document Type: Book: All Authors / Contributors. Additional Physical Format: Online version: Pátek, Karel.\nGlass lasers. Cleveland, Ohio, CRC Press  (OCoLC) Document Type: Book: All Authors. The interest in Yb-sensitized Er-activated glass lasers is mostly associated with the eye efficiency and wavelength diversity, are absolutely indispensable for many applications. The Handbook of solid-state lasers reviews the key materials, processes and Glass lasers book of solid-state lasers across a wide range of fields.\nbefore the book. Flashlamp, laser diode, mercury arc (for CW mode operation) Dermatological uses, LIDAR, laser machining. Erbium-doped and erbium–ytterbium codoped glass lasers μm Laser diode These are made in rod, plate/chip, and optical fiber form.\nErbium doped fibers are commonly used as optical amplifiers for telecommunications. This book reviews the history and the state of the art of random lasers, provides an outline of the basic models describing their behavior, and describes the recent advances in the field.\nThe micron lasing effect in Yb and Er co-doped glass was first observed by E. Snitzer and R. Woodcock in 1 Nevertheless for a long time the efficiency of Yb–Er glass lasers was below any practical requirements.\nThe fundamental studies reported by Gapontsev et al. 2 and Alekseev et al 3 showed the unique properties of phosphate glass as a host for efficient Glass lasers book by: 2. Laser Glass Cutting Techniques - A Review Article (PDF Available) in Journal of Laser Applications 25(4) June with 4, Reads How we measure 'reads'.\nChapter 4 Fundamentals of Laser-Material Interaction and Application to Multiscale Surface Modification Matthew S. Brown and Craig B. Arnold Abstract Lasers provide the ability to accurately deliver large amounts of energy into confined regions of a material in order to achieve a desired response. Electrical Engineering Introduction to Laser Technology, Third Edition Would you like to know how a laser works, and how it can be modified for your own specific tasks.\nThis intuitive third edition-previously published as Understanding Laser Technology, First and Second Editions-introduces engineers, scientists, technicians, and novices alike to the world of /5(2). Neodymium-doped laser glass is the preferred gain medium for use in high-peak-power lasers for fusion energy research.\nThe NIF laser system uses about 3, kilogram plates of laser glass. Each glass plate measures by 46 by 81 centimeters (about. CHAPTER 7. LASERS Argon and Krypton Ion Lasers Similar to the HeNe-laser the Argon ion gas laser is pumped by electric dis charge and emitts light at wavelength: nm,nm,nm,nm, nm, is used in applications ranging from retinal photother apy for diabetes, lithography, and pumping of other Size: KB.\n\"Lasers is a remarkably well written book that should become the standard introductory text on laser physics.\" Optical & Quantum Electronic NewsLasers is both a text and general reference book with an emphasis on basic laser principles and theory. It gives a complete, detailed and accurate treatment of laser physics, building only on classical models, without requiring a /5(14).\nInternal glass marking uses nm (Nd:YVO4) or ultrashort lasers. Their small spot sizes have high energy density and absorption rates that can mark precise locations within the glass.\nBy changing the Z height and scanning in the X and Y axes, you can even mark 3D. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic term \"laser\" originated as an acronym for \"light amplification by stimulated emission of radiation\".\nThe first laser was built in by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles.\nDepending on the composition and the requirements e.g. concerning the cutting edge quality, we offer different lasers for glass cutting. When producing sensitive components which often require the cutting of flexible thin-glass or light and high-strength glass e.g.\nwithin the electronic industry, the SmartCleave TM FI process is the right choice. Part of book: Modern Electron Microscopy in Physical and Life Sciences. Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution.\nBy Abubaker Hassan Hamad. Part of book: High Energy and Short Pulse Lasers. With a CO 2 laser engraver, you can use a variety of laser processing techniques on flat materials including mirrors or window glass, round workpieces such as wine glasses or champagne flutes, and even bottles and other cylinder nsive, cast glasses adapt well to laser technology because they typically offer a lower lead content as well as a more homogeneous Home Country: en-US.\nYou searched for: laser engraved book. Etsy is the home to thousands of handmade, vintage, and one-of-a-kind products and gifts related to your search.\nNo matter what you’re looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. Let’s get started. Online Library Glass Lasers Glass Lasers If you ally need such a referred glass lasers ebook that will give you worth, get the entirely best seller from us currently from several preferred authors.\nIf you want to witty books, lots of novels, tale, jokes, and more fictions collections are plus launched, from best seller to one of the most. Glass breaks.\nApple has once again made the back glass on their new iPhone 11 and iPhone 11 Pro permanent. Apple charges to dollars to replace the glass back on their new iPhones.\nThe interest in Yb-sensitized Er-activated glass lasers is mostly associated with the eye-safety of their wavelength (λ ~μm) corresponding to 4I13/2 - 4I15/2 Er3+ ion transition.\n2 Fiber Laser Industrial Etching & Marking e-Book Introduction In the fiber laser (and also most YAG lasers these days and YVO lasers) the external energy source is a laser diode The electrons in the medium don’t really want to store the external energy they’ve clear glass, clear acrylic, leather and fabrics all tend to be.\nTellurite glass has emerged as a promising material for use in microsphere resonators in the near infrared wavelength region and tellurite glass microsphere lasers have been widely reported. InSasagawa et al.\nreported continuous-wave oscillation in an Nd 3+ -doped tellurite glass microsphere laser at μm for the first time [ 96 ]. laser cut glass can typically withstand two to three times as much force as mechanically cut glass.\nFigure 1. Comparison of mechanically cut (left) and laser cut (right) glass. The mechanically cut glass shows significant residual stress, and substantial debris from the cutting.\nThis book evolved from a series of courses developed by the author and taught in the areas of lasers and photonics. This thoroughly classroom-tested work fills a unique need for students, instructors, and industry professionals in search of an introductory-level book that covers a wide range of topics in these areas.\nBooze & Lasers Book Club meets on the third Monday of every month to discuss a science fiction or fantasy book. The bar at Raconteur crafts a custom cocktail (and mocktail) based on the book, so grab a glass and join us for a lively literary discussion.\nAll monthly book club titles are discounted 20% for the month prior to the book club meeting. Chapter Erbium (Er) glass lasers. Abstract: Introduction. Flashlamp pumped erbium (Er) glass lasers. Laser diode (LD) pumped erbium (Er) glass lasers.\nMeans of Q-switching for erbium (Er) glass lasers. Applications of erbium (Er) glass lasers. Crystal lasers emitting at about microns: advantages and drawbacks. Various papers on modeling and simulation of laser systems are presented. Individual topics addressed include: simulations of FELs, three-dimensional nonlinear simulation of the FEL, modeling of induction-linac-based FEL amplifiers, simulation codes for modeling FEL oscillators, FELs using stable-unstable ring resonators, computational analysis of Raman look-through.\nNd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y 3 Al 5 O 12) is a crystal that is used as a lasing medium for solid-state dopant, triply ionized neodymium, Nd(III), typically replaces a small fraction (1%) of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the two ions are of similar size.\nIt is the neodymium ion which .Join us in a discussion on November's book, Exit West by Mohsin Hamid on Monday, November 18 at 7pm.\nDrink specials are available from Raconteur during book clubs and author readings, so grab a glass and join us for a lively literary discussion. Every month our selected titles are discounted 20% through the date of the book club.\nAll are welcome, no purchase required.K9 glass, sometimes referred to as K9 crystal, is a variety of optical borosilicate crown letter \"K\" is a reference to the German word for \"crown\" (Krone) and the number 9 refers to the lead content of the glass (9%).K9 glass has high optical clarity, and is used in many contexts requiring this characteristic.","domain":"optical_engineering"}
{"url":"https://www.geniuslaser.com/genlas-lasers","date":"2024-04-18T19:59:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817239.30/warc/CC-MAIN-20240418191007-20240418221007-00776.warc.gz","language_score":0.8637104630470276,"token_count":382,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__135552033","lang":"en","text":"+61 3 9584 6482\nGenius Laser Technology Pty Ltd\nFactory 6, 63-65 Voltri Street\nCheltenham VIC 3192 Australia\nDiscover our extraordinary GENLAS range of RGB laser projectors, meticulously built right here in Australia using top-quality parts sourced from both local suppliers and around the world. These projectors incorporate the latest advancements in high-powered diode laser technology, ensuring exceptional performance and stunning visual effects.\nWith GENLAS laser projectors, you can unleash a world of possibilities. Experience breathtaking full-color RGB atmospheric effects that will leave your audience in awe. Create sharp text, logos, graphics, and captivating animations that bring your vision to life.\nEvery GENLAS laser projector is equipped with Pangolin FB4 hardware, providing you with unparalleled flexibility in laser control. Seamlessly integrate your lasers with Pangolin Quickshow, Pangolin Beyond, Artnet, DMX 512, or use standalone modes to suit your specific needs.\nRest assured that we stand by the quality and reliability of GENLAS lasers, as we utilize them in all our own productions. From indoor venues to challenging outdoor environments, GENLAS lasers prove their capability time and time again.\nModes of operation:\nAs proud manufacturers based in Australia, we continually evolve our designs and incorporate new add-ons to ensure you receive cutting-edge technology and unparalleled performance. Experience the innovation and excellence of GENLAS laser projectors for yourself\nOur GENLAS range of RGB Laser show projectors are perfect when you need a large amount of power from a small footprint. They are capable of filling large stadiums with intense laser light, they are extremely cost effective and a perfect inclusion for Corporate events, Advertising, Dance parties, Festivals, Productions and Laser Billboards.","domain":"optical_engineering"}
{"url":"https://www.noeltech.com/noel-technologies-inc-acquired-by-pure-wafer-november-5-2021/","date":"2023-09-29T03:55:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510481.79/warc/CC-MAIN-20230929022639-20230929052639-00813.warc.gz","language_score":0.8935186266899109,"token_count":186,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__228778732","lang":"en","text":"Noel will continue to operate as a separate company, owned by Pure Wafer. We’re all excited to be acquired by Pure Wafer, a leader in Silicon & Silicon Reclamation. Joining the Pure Wafer team allows Noel access to additional silicon, thin films, and proprietary cleaning processes. Pairing Noel’s new growth applications in semiconductor processing, utilizing a large range of thin films, multilayer processing capabilities to make products serving applications in the optical calibration standards, institu parameter testing & calibration, life sciences, lab on a chip, MEMS, photonics and many more applications. Noel offers lithography engineering services, including support on reticle layout and process development to insure design success in product development and manufacturing.\nNoel Technologies, Inc Acquired by Pure Wafer November 5, 2021frontendtech2022-01-04T16:57:15-07:00","domain":"optical_engineering"}
{"url":"http://www.denselight.com/","date":"2016-02-07T17:03:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701150206.8/warc/CC-MAIN-20160205193910-00281-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.8623331785202026,"token_count":283,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__19972957","lang":"en","text":"Design and Manufacturing\nTo be a global\nprovider of innovative solutions and designs, and a cost effective\nmanufacturer of photonics products and services.\nDenselight Semiconductors is a Singapore-based privately held photonics company. We\ndesign, manufacture, and deliver leading photonic optical light source\nproducts and solutions to the communications, medical, instrumentations,\nindustrial, defense, and security industries. DenseLight processes Indium\nPhosphide (InP) and Gallium Arsenide (GaAs) based optoelectronic devices and\nphotonic integrated circuits through its in-house wafer fabrication and\nassembly & test facilities.\nis recognized worldwide for its technological innovations in high\nperformance semiconductor infrared superluminescent light sources and\nlasers, with a proven track record in deployed applications.\nintegrated solutions with superior product performance, quality and time to\nthe market. Our strategy is to leverage off our people, patents, know-how,\nprocess & design capability, and intimate knowledge of market requirements\nto best serve the exacting needs of our customers. We will work in\nour customers in achieving growth through the development of new and competitive\nsolutions in the communications, medical, instrumentation, industrial, and\nThe new DenseLight website\nis ready for viewing in major browsers. Please contact us if you encounter","domain":"optical_engineering"}
{"url":"http://lagsb.com/product/virtek-laserqc-inspection-system-virtek-laserqc/","date":"2023-05-28T15:17:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644309.7/warc/CC-MAIN-20230528150639-20230528180639-00649.warc.gz","language_score":0.8445858955383301,"token_count":215,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__22961321","lang":"en","text":"Virtek LaserQC® by Gerber Technology\nBrand : Virtek LaserQC® by Gerber Technology\nProduct Type :Inspection System\nProduct Name : Virtek LaserQC®\nVirtek LaserQC® by Gerber Technology is a rapid inspection system that employs lasers to measure the accuracy of two-dimensional parts to tolerances within 0.05 mm (0.002 inches). Virtek® LaserQC® by Gerber Technology verifies system calibration before each scan to ensure repeatable accuracy. Accurate to within 0.05 mm (0.002 in), Virtek LaserQC® by Gerber Technology captures more than 500 data points per second. And it can issue quality control reports to build customer confidence. Designed for easy set up so it can be operational in only a few hours – the intuitive user interface allows new operators to quickly become fully proficient and importantly, productive.\nWant to know more about this product? Drop us a message now!\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://owiha.com/who-wants-to-shop-in-augmented-reality-with-connected-lenses-and-amazon-alexa/","date":"2022-12-08T03:42:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711232.54/warc/CC-MAIN-20221208014204-20221208044204-00535.warc.gz","language_score":0.9500330686569214,"token_count":433,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__265109541","lang":"en","text":"What if it was possible to see a shopping list appear in your field of vision thanks to connected contact lenses? This is the objective of a partnership announced this Thursday, November 3, 2022 between Mojo Vision and Amazon. The Californian start-up said it is conducting integration tests to implement the Alexa Shopping List functionality to Mojo Lens, its connected lens prototypes.\nA MicroLED screen on the lenses\nThe Californian start-up designs lenses incorporating a MicoLED screen hidden under an artificial iris to display information in augmented reality. This connected lens is still at the prototype stage but Mojo Vision is studying different use cases. The idea is to show the potential of its contact lenses through a whole range of consumer applications.\n“With Alexa, Amazon is fundamentally improving the way people interact with technology using voiceexplains Mike Wiemer, CTO and co-founder of the start-up. Mojo Vision sees a similar opportunity, but with eyes. Vision plays a vital role in how we perceive and interact with the world, and Mojo Lens will help people access information quickly without distracting from the world around them.”\nA product far from seeing the light of day\nWith this partnership, Mojo wants to show how the voice assistant and the connected lens can interact by integrating Alexa with Mojo’s eye interface. The use case features someone accessing their shopping list when they are in the store without needing to use their hands for this since it appears in their field of vision thanks to the Mojo Lens. He can check the list and validate the products purchased as he goes by using the movement of his eyes. At the same time, a user can ask Alexa to add products to the list which is immediately updated on Mojo lens.\nBut this partnership is far from leading to a possible product. The product of Mojo remaining for the moment far from a hypothetical commercialization. Beyond these applications for the general public – Mojo has also forged partnerships with many sports brands – the start-up plans to offer its Mojo Lens to visually impaired people with the aim of correcting certain visual disabilities.\nSelected for you","domain":"optical_engineering"}
{"url":"https://kudubuqusafuf.nuamooreaid.com/application-of-digital-techniques-to-the-infra-red-spectra-of-fibrous-polymers-book-30906ya.php","date":"2021-04-14T13:30:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038077818.23/warc/CC-MAIN-20210414125133-20210414155133-00434.warc.gz","language_score":0.8694183826446533,"token_count":841,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__258677074","lang":"en","text":"in Bradford .\nWritten in English\nPh.D. thesis. Typescript.\n|The Physical Object|\nWe investigated the influence exerted by the conditions of preparation of specimens of fibrous materials made of polyethylene terephthalate and triacetate threads and fabrics and the conditions of recording IR spectra of modified frustrated total internal reflection (MFTIR) on the reproducibility of spectral characteristics. We found that the area of actual contact of fibrous Author: M. M. Kabaev, E. I. Ivchenko. infrared (FTIR) spectroscopy has dramatically improved the quality of infrared spectra and minimized the time required to obtain data. In addition, with con-stant improvements to computers, infrared spectroscopy has made further great strides. Infrared spectroscopy is a technique based on the vibrations of the atoms of a molecule. Fibrous diameters were visualized by Image J using SEM images. All experiments were performed at room temperature. The surface chemistry was examined using Fourier transform infrared spectroscopy (FTIR) in single attenuated total reflectance (ATR) mode (JASCO , USA) that was equipped with a standard Ge/KBr by: Fourier transform infrared spectroscopy (FTIR) is a technique which is used to obtain infrared spectrum of absorption, emission, and photoconductivity of solid, liquid, and gas. It is used to detect different functional groups in PHB. FTIR spectrum is recorded between and cm − FTIR analysis, the polymer was dissolved in chloroform and layered on a NaCl crystal and after.\nD.S. Sutar et al. / Sensors and Actuators B () – Fig. 3. FTIR spectra of polyaniline film. SEM shows that polyaniline films have nanofibrous morphol-. FTIR spectroscopy offers a vast array of analytical opportunities in academic, analytical, QA/QC and forensic labs. Deeply ingrained in everything from simple compound identification to process and regulatory monitoring, FTIR covers a wide range of chemical applications, especially for polymers and organic compounds. Spectroscopy: Infrared vibrational spectroscopy is used for identifying the molecules by analyzing their bonds as the molecule vibrates at different frequencies. The unit used to express the radiation is cm Astronomy: Optical components like mirrors, lenses and digital detectors are used to study the objects that are in space. These objects. Infrared spectroscopy 1. IR SPECTROSCOPY Pathak 1 2. Electromagnetic Spectrum 2 3. IR Region Region of IR Wave length (µm) Wave number (cm-1) Near IR (Overtone region) 12, Mid IR (Vibration- rotation region) Far IR (Rotation region) Most used 3.\nThe book reviews structural units of biopolymers and describes characterization of biopolymers, the available techniques, the evaluation of underlying principles, and experimental applications. Some of these methods include Raman spectroscopy, theoretical conformation analysis, electron microscopy, and morphology of laboratory-synthesized polymers. Infrared spectroscopy 1. INFRARED SPECTROSCOPY 2. IR spectroscopy is the study of interaction between infrared radiations and matter. Infrared radiations refers broadly to that part of electromagnetic spectrum between visible and microwave region. 3. IR spectrum of ethanol 4. This book offers a balanced overview of the fundamental theory and instrumentation of NIR spectroscopy, introducing the material in a readily comprehensible manner. A considerable part of the text is dedicated to practical applications, including sample preparation and investigations of polymers, textiles, drugs, food and animal feed. Provides an introduction to those needing to use infrared spectroscopy for the first time, explaining the fundamental aspects of this technique, how to obtain a spectrum and how to analyse infrared data covering a wide range of applications. Includes instrumental and sampling techniques Covers biological and industrial applications Includes suitable questions and problems in each chapter to.","domain":"optical_engineering"}
{"url":"https://www.deratech.be/en/products/fiber-laser-cutting-machines/futura/","date":"2023-11-29T05:08:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100056.38/warc/CC-MAIN-20231129041834-20231129071834-00277.warc.gz","language_score":0.8750870227813721,"token_count":320,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__201439840","lang":"en","text":"The FUTURA is a universal tube laser cutting machine.\n- FUTURA 6020 for tubes and profiles with a capacity of 10 mm up to 220 mm diameter\n- FUTURA 6038 for tubes and profiles with a capacity of 10 mm up to 380 mm diameter\nThe Futura 6020 and Futura 6038 tube lasercutting machines are both equipped to process standard tube lengths up to 6 metres.\nOptionally, both models can be equipped with\n- Infeed system for tube lengths up to 12 metres\n- Bevel-cutting head for 3D cutting operations\n- 3 chucks for cutting without material loss\n- 2 kW, 3 kW, 4 kW or 6 kW cutting power fiber laser\nThe Futura 6020 and 6038 laser tubecutting machines are available as a budget-friendly entry-level machine with manual loading for occasional use. They can be upgraded to a fully automated production cell with automatic bundle loader and automatic unloading system, which guarantees continuous production possibilities.\nWith the Futura, not only round and square tubes can be cut, also rectangular, elliptical, and open profiles such as U, L, H, T, etc., are possible.\nThe machine delivers very acceptable dynamic performances for cutting thin tube material at high speed, but also has the technology on board to cut heavier tubes and profiles with a constant quality.\nWorking with the FUTURA tube laser cutting machine becomes a simple and easy task !\n- Budget-friendly entry-level model up to fully automated production unit\n- Flexibly expandable","domain":"optical_engineering"}
{"url":"http://blogyinyang.com/blog1/2013/02/16/the-main-in-the-moon/","date":"2022-09-25T10:28:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334528.24/warc/CC-MAIN-20220925101046-20220925131046-00454.warc.gz","language_score":0.9678731560707092,"token_count":709,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__89928865","lang":"en","text":"Last night was a clear night, and the first with a Moon that we have had in a while. It was a good opportunity for me to conduct some astrophotography experiments.\nAs I have explained in an earlier post, I have a CCD camera that is designed for telescopes, though it is best used with telescopes that have a longer focal length than my telescope. I am also experimenting with taking pictures through the eyepiece using a standard digital camera.\nMoon20130215 This is a short video that was taken with the telescope CCD camera. You will have to click on the link to see it. It is a Windows Media Video. If you do not have a wmv codec, you may not be able to view it. The equipment used was my 4.5 inch Newtonian telescope, with the CCD camera in place of the eyepiece. That means there is no additional magnification beyond the base telescope itself. Attached to the CCD camera was a variable polarizing filter, set to its brightest setting. The video was taken at 6:09pm Eastern Time, so it was still a bit light out, with the sun low on the western horizon, which may account for the yellowish tint.\nThis was a still image take at 6:11pm Eastern Time using the same set up, except I had adjusted the variable polarizing filter to a medium dark setting.\nThis image was taken with my standard digital camera through the telescope. I had a 17mm eyepiece on the telescope, with the polarizing filter on the eyepiece, set to a medium level of darkness. With the 17mm eyepiece the telescope provides about 26x magnification. The faint blue haze is probably due to the ambient light of dusk, and that the lens of my digital camera is slightly larger than the telescope eyepiece. As such, the edges of the lens probably refracted some ambient light. This is something I can correct in the future by using a lens shield.\nIn some regards this may be a more telling image, in that it gives the sense of looking through the eyepiece, showing something more akin to what I see through the telescope. However, at this stage I am simply holding the digital camera up to the eyepiece. My shaky hands, along with bumping or vibrating the telescope, make the image a little blurry. That can be corrected in the future by using a mount that attaches digital cameras to a telescope.\nThis image was taken with the telescope CCD camera using a Barlow Lens. The Barlow Lens was place in the telescope’s eyepiece socket, the variable polarizing filter was attached to the CCD camera, which was then attached to the Barlow Lens. The variable polarizing was set to a medium darkness. The Barlow Lens effectively tripled the magnification of the base telescope prior to sending the image to the CCD camera.\nI would have liked to have snapped the image a few seconds earlier, when more of the bright crescent was in view. I have not yet determined if there are any hotkey shortcuts for the CCD camera. As such, I have to do a bit of clicking to snap a single image. In those few seconds, the Moon had already moved. Things move fast at higher magnification.\nThe experimentation will continue the next time the skies allow it. Right now we are experiencing a bit of rain and snow, so who knows when I will get that chance.","domain":"optical_engineering"}
{"url":"https://kppigments.com/blogs/news/optical-properties-of-pearl-pigments","date":"2023-09-25T20:57:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510085.26/warc/CC-MAIN-20230925183615-20230925213615-00677.warc.gz","language_score":0.9317688941955566,"token_count":506,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__73733515","lang":"en","text":"You can use pearl pigments to create different visual effects on your jewelry, car, or any other surface. They have specific optical properties that allow to shine and shimmer when light falls on them. These optical properties are made possible by reflection and refraction.\nReflection by Pearl Pigments\nNormal paint tends to absorb light instead of reflecting it. That’s why it appears dull and bland as compared to pearl pigment paint. Pearl pigments reflect light in the same way that a mirror does. You’ll notice that the brighter the day, the brighter a pearl pigment painted surface is.\nReflection is mainly responsible for the shiny appearance of pearl pigment paint. Pearl pigments get a lot more exciting when you start playing with different colors. Many people often wonder how pearl-pigment-painted surfaces canchange color. The color effects are brought along by refraction.\nRefraction by Pearl Pigments\nRefraction occurs when light passes through the boundary of two surfaces that have different refractive indexes. The substrates used to make pearl pigments are usually crystalline. They are layered, and each layer has a slightly different refractive index. A coating of a metal oxide is then added to the substrates. This layer enhances the colors you observe as a result of refraction.\nRefraction causes the colors observed to change along the light spectrum. The painted surface exhibits different colors of the rainbow depending on the angle on which the light is falling on it. The colors are richer when the refractive indexes are precise and the substrates are impurity-free. That is why synthetic pearl pigments have better colors and luster. Pearl pigment manufacturers such as KP Pigmentscan ensure that the synthetic substrates they produce are pure and transparent.\nMixing Pearl Pigments\nYou can mix different pearl pigments to achieve a particular optical effect. If you cannot find one type of pearl pigment power that can give you the color or effect you want, mixing up several of them might get you there.\nPearl pigment paints that change color do not necessarily contain differently colored pearl pigments. As mentioned earlier, some of the pearl pigments will exhibit different colors at different angles of refraction. It is easier to achieve the chameleon effect by mixing pearl pigments of different colors though.\nThe world of pearl pigments is quite exciting. When you start exploring pearl pigments, you are going to discover new things about their appearance and the way they react to light every day.","domain":"optical_engineering"}
{"url":"https://store.lowepro.com/shop/wedding-and-event?mode=list","date":"2018-02-26T03:34:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891817999.51/warc/CC-MAIN-20180226025358-20180226045358-00168.warc.gz","language_score":0.8584597706794739,"token_count":212,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__118933163","lang":"en","text":"Recently added item(s) ×\nYou have no items in your shopping cart.\nFind an event-ready bag that's understated in style, but high-performing in features required by professional photographers.\n1-15 of 20\nOut of stock\nGet mission-critical access in a super-compact and rugged shoulder bag for your Pro DSLR kit, plus laptop.\nAdd to Cart\nLightweight and streamlined carry-on compatible camera rolling bag with armored exterior.\nLens case that fits a high-power zoom lens (similar to Canon 70-300mm f/4-5.6)\nLens case that fits a compact, mid-range zoom lens (similar to Canon EF-S 55-200mm)\nLens case that fits a small zoom lens for Micro Four Thirds and mirrorless cameras (similar to Fuji XC 16-50mm)\nLens case that fits a special compact zoom lens (similar to Olympus 4/3 40-150mm f/2)\n© 2018 Vitec Imaging Solutions","domain":"optical_engineering"}
{"url":"https://www.3aw.com.au/monash-universitys-blood-test-breakthrough-that-could-save-lives/","date":"2021-07-25T23:31:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151866.98/warc/CC-MAIN-20210725205752-20210725235752-00638.warc.gz","language_score":0.9435257911682129,"token_count":249,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__79287159","lang":"en","text":"Monash University’s blood test breakthrough that could save lives\nMelbourne scientists have made a breakthrough that could fast-track the way disease or infection is diagnosed and treated.\nMonash University researchers have developed a device, which can rapidly detect serious conditions such as HIV, diabetes and hepatitis using a single drop of blood.\nThe technology uses infrared light to analyse disease-causing pathogens.\nIt has the potential to deliver a diagnosis within an hour.\nPatients currently have to wait 24 to 48 hours for results using current technologies, which can be too late for those with conditions like septicaemia.\nIt is hoped the device could be approved for use in hospitals in the next three to four years.\nCo-inventor Bayden Wood, the Centre for Biospectroscopy director at Monash University, told 3AW Breakfast it could also be used to detect allergies, glucose and various other applications.\n“It’s a really universal test and really it’s only limited by the type of disease we develop the model on, that’s the really exciting part,” he said.\nClick PLAY to hear Professor Bayden Wood explain the breakthrough for Ross and John","domain":"optical_engineering"}
{"url":"http://www.utvoutpost.com/side-view-mirror-set-fits-kubota-rtv-900-or-rtv-1140-utv/","date":"2018-01-20T05:22:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889325.32/warc/CC-MAIN-20180120043530-20180120063530-00699.warc.gz","language_score":0.7324150204658508,"token_count":191,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__198814549","lang":"en","text":"- Heavy Duty Side View Mirrors Fit Kubota RTV 900 and RTV1140 UTV\n- Left and Right Hand Set\n- Break-a-Way feature\n- Shatter resistant ABS plastic.\n- 7″ x 5.5″ glass mirror face\nBreak away mirrors work great for Kubota RTV 900 and RTV 1140 UTVs.\n** Left and Right Hand Side Mirrors; Set.\n** Black in color bodies.\n** OEM Style.\n** Mounts with heavy duty steel clamps with rubber grommets, and supplied bolts, washers, and nuts.\n** Shatter resistant ABS plastic mirror housing bodies. Thick glass mirror faces.\n** Extra Large viewing area, 7″ x 5.5″\n** Slight convex curve on the mirror to see all behind you.\n** Break-a-away feature; folds in to avoid breakage/storage.","domain":"optical_engineering"}
{"url":"https://www.hct.edu.om/academic-departments/engineering/about-the-department/news-and-announcements/field-visit-to-oman-fiber-optic-company?tmpl=component&print=1","date":"2021-11-29T21:30:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358842.4/warc/CC-MAIN-20211129194957-20211129224957-00221.warc.gz","language_score":0.9454599022865295,"token_count":127,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__110565299","lang":"en","text":"A team of 30 students from Diploma Second Year with 4 staff members from Electronics and Communication Engineering specialization, EEE section, Engineering Department have visited Oman Fiber Optic Company on 10th March 2020 (from 10:30 am to 1:30 pm).\nThis visit is intended to focus for our students in the following areas of our specialization:\n- Fabrication of Fiber Optic Cable for all applications,\n- Fiber Optic Accessories & Connectivity,\n- Fiber Optic Installation\nOur students and staff’s had a nice interaction with the industrial experts so that it shall bridge the gap between the academic and industry.","domain":"optical_engineering"}
{"url":"http://pmc.nationalgrid.co.uk/innovations/3d-laser-scanner/","date":"2021-09-18T11:44:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056392.79/warc/CC-MAIN-20210918093220-20210918123220-00234.warc.gz","language_score":0.8991051912307739,"token_count":209,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__37328844","lang":"en","text":"3D Laser scanner\nSave time, money and increase your data accuracy with the 3D laser scanner for pipeline inspections.\nPMC have trained P11 inspectors that are now utilising the handheld 3D laser scanner for pipeline inspections.\nThe 3D laser scanner provides improved accuracy and quicker turnaround times for inspections compared to the traditional method. A typical general corrosion inspection could reduce inspection times by up to 80%.\nBenefits of use:\nReduced repairs due to accuracy of data\nReduction in site labour\nFaster restoration of pipeline\nAccurate and fast asset data collection\nPipeline corrosion or mechanical defects\nHard to reach areas\nOur customer says:\n“The 3D scanner for P11 inspection is a fantastic piece of kit, providing highly detailed reports in real time whilst reducing time on site, overall cost and potential risk to the asset ultimately allowing the pipeline to be repaired in a timely manner. I will continue to use this kit for any future inspections within Cadent Gas East Midland Pipelines.”","domain":"optical_engineering"}
{"url":"http://www.andyspetfoodandsupply.com/product/RG22191","date":"2020-09-25T22:10:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400228998.45/warc/CC-MAIN-20200925213517-20200926003517-00586.warc.gz","language_score":0.8474982380867004,"token_count":125,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__269432067","lang":"en","text":"Repti Glo 2.0 uvb 26w Full Spectrum Terrarium Lamp\nClick to enlarge image(s)\nThe Exo Terra Repti Glo 2.0 is a general light source with a high visual light output and a very high color rendering index (CRI), but a lower 2% UVB radiation. This bulb is suitable for snakes, amphibians, frogs, toads, salamanders and nocturnal animals. Plants will thrive under this light as well. It is also a perfect complementary light to a second higher UVB bulb to boost visual light in the terrarium.","domain":"optical_engineering"}
{"url":"https://www.afribaba.ng/ikeja-lga/dji-phantom-4-pro-v2-0-33712.html","date":"2022-01-23T22:08:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304309.59/warc/CC-MAIN-20220123202547-20220123232547-00471.warc.gz","language_score":0.8780404329299927,"token_count":152,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__189734144","lang":"en","text":"Ad Details: Dji phantom 4 pro v2.0 Ikeja, Lagos, Nigeria, NG\nThe new Phantom 4 Pro V2.0 features an OcuSync HD transmission system, which supports automatic dual-frequency band switching and connects to DJI Goggles wirelessly. Like the Phantom 4 Pro and Advanced, the Phantom 4 Pro V2.0 is equipped with a 1-inch 20-megapixel sensor capable of shooting 4K/60fps video and Burst Mode stills at 14 fps. Plus, its FlightAutonomy system includes dual rear vision sensors and infrared sensing systems for a total of 5 directions of obstacle sensing and 4 directions of obstacle avoidance.\n✅ Do not forget to mention AFRIBABA during your call!","domain":"optical_engineering"}
{"url":"http://www.csail.mit.edu/events/eventcalendar/series_exp.php?show=event&id=499","date":"2013-05-19T10:53:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368697420704/warc/CC-MAIN-20130516094340-00030-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9044508934020996,"token_count":259,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__50018008","lang":"en","text":"Nonlinear Light-Field Shape-and-Texture Appearance Manifold\nSpeaker: C. Mario Christoudias , Vision interface group, CSAIL, MIT\nStatistical shape-and-texture appearance models use image morphing to define a rich, compact representation of object appearance. They are useful in a variety of applications including object recognition, tracking and segmentation. These techniques, however, have been limited to objects with Lambertian surface reflectance, simple geometry and topology. In this work we present new shape-and-texture appearance models that overcome these limitations. In the first part of our work we develop a 4D shape-and-texture appearance model, built using light-fields. This model is capable of representing objects with complex surface reflectance and geometry. We demonstrate our light-field appearance model using 50 light-fields of the human head captured from a real-time camera array. Next, we present a nonparametric appearance model of the shape and texture of objects whose appearance manifolds exhibit a complex topology, e.g. have holes. We demonstrate this model using 2D mouth images of speaking people. In our experiments we evaluate the performance of each method and provide a comparison with conventional, linear single- and multi-view deformable models.","domain":"optical_engineering"}
{"url":"http://arcriversideca.org/how-to-choose-a-pair-of-binoculars/","date":"2019-03-21T21:42:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202572.7/warc/CC-MAIN-20190321213516-20190321235516-00454.warc.gz","language_score":0.9517256617546082,"token_count":886,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__218953006","lang":"en","text":"This short article will certainly provide you the majority of the standard details required in selecting a set of field glasses. Selecting a set of field glasses ought to not be a tough or difficult experience. Utilize the standards below in order to help you select the ample field glasses for your checking out demands, particularly if you are simply starting the globe of up-close watching.\nThe very first point you should ask on your own when thinking about getting a set of field glasses is, just how much cash do I intend to invest for a set of field glasses? This set inquiry involves numerous responses and also or various other concerns.\nHow a lot? Field glasses can be found in several cost varieties from extremely cost-effective, fifteen to twenty bucks each, to very costly versions, as much as numerous thousand bucks each. If you are purchasing your initial set of field glasses it is advised that you start at the reduced end of the cost variety scale up until you recognize exactly what you are in fact trying to find in a set of field glasses. Experienced binocular customers typically recognize just what they desire regarding high quality of binocular optics, power or zoom, waterproofing, barrels as well as various other functions that associate with field glasses and also binocular usage. Costs will generally enhance, occasionally drastically, as binocular top quality increases and also binocular functions increase. This is not to state that you cannot take pleasure in up-close checking out with cost-effective field glasses.\nBinocular “power” or “zoom” is established by the very first numbers in the design classification, (instance 10 x 50). 10 is the power or zoom capability of the field glasses which means making the item you are watching show up 10 times closer to compared to checked out with the nude eye. A power of 10 is an all over excellent number for basic binocular usage, specifically if you are a very first time purchaser. 10 power is rather in the center of the power array and also benefits a lot of all watching.\nObjective lens dimension, or the 2nd number in the version classification instance stated over is 50. The 50 stands for the size of the goal or big lens of the field glasses in millimeters. This is essential as this number figures out what does it cost? “light” is collected right into the field glasses. The even more light that is collected right into the binocular barrel, the brighter the photo. The brighter the photo additionally connects to exactly how well you will certainly have the ability to see in reduced light problems. You will certainly see far better in reduced light problems (morning, late night or over cast days) with an unbiased lens size of 50mm compared to you will certainly with an unbiased lens size of 25mm. An unbiased lens size of 35mm to 50mm is a great location to begin if you are brand-new to the globe of field glasses utilize.\nThe following inquiry you wish to ask on your own is do I desire huge field glasses (typical dimension) or little field glasses (portable dimension)? Requirement dimension field glasses need to be lugged in hand, on the shoulder or around the neck by the safety/carrying band and also could have greater powers and also bigger unbiased lens dimensions compared to compacts. Many compact binoculars could be brought in the tee shirt pocket or layer pocket. The most significant negative aspect to compact binoculars is that they usually do not have an unbiased lens dimension of greater than 35mm. A 25mm unbiased lens dimension is usually conventional in a lot of compact binoculars as a result of their tiny barrel dimension.\nThe above is essentially all you should recognize when buying a set of field glasses. To evaluate, Rate, Version classification (10 x 50) etc, and also Dimension resolution. There are lots of various other identifying elements associated with binocular options as well as functions. As you come to be much more knowledgeable about field glasses as well as your binocular watching requires you could inspect the binocular vendors requirements to learn more on a certain version of field glasses or most likely to the Frequently Asked Question web page of the binocular vendor you are seeing to obtain a lot more extra details that could as well as will certainly affect your field glasses purchasing choice. For the best compact binoculars, click here: OutdoorSpike.com","domain":"optical_engineering"}
{"url":"https://www.energymanagementmag.co.uk/charcroft-samples-new-optical-port-switches-for-smart-meter-applications/","date":"2021-11-28T10:58:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358520.50/warc/CC-MAIN-20211128103924-20211128133924-00098.warc.gz","language_score":0.8803667426109314,"token_count":354,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__146459331","lang":"en","text":"Charcroft Electronics – a specialist distributor and manufacturer of components for harsh and high-end applications– is sampling a new pair of optical port switches designed for Smart Metering and other applications.\nAs an alternative to the conventional pairing of an LED and a phototransistor, Optek’s Smart Meter Pair offers a number of benefits: compatibility with existing microcontrollers eliminates the need for external conditioning circuitry to eliminate crosstalk between the two components; and immunity to ambient light eliminates the need for opaque shielding. In addition, the Optek’s Smart Meter Pair are compliant with the ANSI C12.18 Smart Meter standard whilst also providing performance which is10x faster than the current specification. The OP181 and OPL6000 are offered in sub-miniature reverse gull-wing surface-mount packages to reduce board space and also support low power consumption.\nManufactured by TT Electronics Optek, the surface-mount Smart Meter Pair consists of the OP181 emitter, incorporating a high-power 940nm LED; and the OPL6000 receiver which integrates a custom CMOS ASIC and a lens to provide maximum light-coupling ability.\nOptical port switches are used to provide a fail-safe back-up which allows on-site personnel to retrieve vital information in the event of a failure of the remote communication system which transfers information from the smart meter to the utility provider.\nDesigned specifically for smart-meter applications, these optical port switches can also be used in other applications such as photo interrupters; miniature light barriers, miniature switches, optical switches, counters, and as an emitter in proximity sensors.\nThe OP181 / OPL6000 Smart Meter Pair are available now for sampling.","domain":"optical_engineering"}
{"url":"http://yofi.co.id/technologies/","date":"2023-03-21T02:05:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943589.10/warc/CC-MAIN-20230321002050-20230321032050-00303.warc.gz","language_score":0.888156533241272,"token_count":584,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__87147730","lang":"en","text":"YOFC is producing all kinds of fibre preforms with the Plasma Activated Chemical Vapor Deposition （PCVD） process. PCVD has been developed by Philips Optical Fibre to deliver an efficient way of producing optical fibres. PCVD can deposit thousands of fine layers in the core and possesses features like highly accurate refractive index control, high deposition efficiency and excellent process flexibility. Thereby, YOFC fibre products show outstanding performance in some key technical specifications, e.g. MFD, bandwidth, PMD and dispersion control. PCVD not only can produce top-quality multi-mode fibres but also performs outstanding in producing single-mode fibre especially single-mode fibre with complicated refractive index profile,e.g. G.655 fibre. In addition, PCVD shows its unique advantages in producing specialty fibres.\nPCVD process: as the substrate tube of PCVD deposition, a clean quartz tube is fixed between the vacuum pump and MFC. The device can control SiCl4, GeCl4, C2F6 and O2 to mix fully and accurately according to the rations set in advance and they are poured into the substrate tube under the given low pressure.\nThe resonator which moves back and forth encircles the part of the substrate tube, and couples thousands of watts of microwave energy to the vapor mixtures through the waveguide. The microwave can produce plasma of a partial non isotherm and low pressure inside the quartz tube. The vapor inside the plasma reacts with each other and. At this moment, the electron motion of the plasma equates to the high temperature of 60,000 degree centigrade, far higher than the surrounding temperature of the tempering furnace.\nSiCl4 and O2 can produce pure SiO2 after they react with each other. GeCl4 and O2 can produce the dopant GeO2 increasing the refractive index after they make similar reactions. Meanwhile, the products react from Freon, the main ingredients of C2F6, reduce the refractive index. Through this way, the optical fibre refractive index can be flexibly changed and deposition can be conducted directly on the transparent tube wall without any dusts coming into being.\nWhen the resonator goes back and forth every time, the mixture proportion of the vapors can be changed to the thousands of deposition layers so that the most accurate perform core layer and refractive index profile curve can be gained. Since any designed refractive index profile can be produced on PCVD deposition lathes, the PCVD deposition lathe can be commonly used and suitable for any types of performs, regardless of single mode or multi mode fibres.\nThe deposition efficiency of PCVD process is very high and the deposition rate of Freon and SiO2 can reach almost 100%. Therefore, the raw materials can be efficiently used.","domain":"optical_engineering"}
{"url":"https://www.fasttechupdates.com/huawei-promises-new-zoom-features-for-p40-pro/","date":"2020-05-30T22:06:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347410352.47/warc/CC-MAIN-20200530200643-20200530230643-00196.warc.gz","language_score":0.949630618095398,"token_count":283,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__31084735","lang":"en","text":"Already on March 26, Huawei will introduce the P40 Pro smartphone – one of the most interesting devices of the year for those who need a camera very much. Of course, there will be a P40 model, but the flagship should be traditionally better.\nHuawei promises new zoom features for P40 Pro\nAnd although we already know a lot about the P40 Pro, today we have information that is obtained directly from Huawei itself. To begin with, the company noted that the camera in the P40 Pro will use the same technologies that debuted on the P30 Pro last year. Most likely, in this case, the RYYB sensor is meant. Recall that last year the P30 Pro was the first with a similar sensor, the pixel structure of which allowed the device to take incredible pictures in almost complete darkness. It can be expected that the P40 Pro will receive a sensor with the same pixel configuration.\nAs for the periscope camera, there is no doubt in its presence, but so far it is not clear exactly what its parameters will be. Huawei itself said that during the development it was inspired by eagles, whose eyes allow birds to see the prey from a distance of up to three kilometres. The zoom capabilities of the P30 Pro will likely be improved.\nFinally, Huawei promised that the P40 Pro will use new materials, but it is not clear which ones.","domain":"optical_engineering"}
{"url":"https://sensors-inc.com/Products/SEMTECH/LASAR","date":"2022-12-04T21:40:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710980.82/warc/CC-MAIN-20221204204504-20221204234504-00440.warc.gz","language_score":0.882455587387085,"token_count":218,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__277091335","lang":"en","text":"This laboratory grade multi-gas analyzer accurately measures gas concentrations from trace levels to full concentrations using an optical feedback laser absorption spectrometer. The system operates at low pressure, significantly reducing adsorption, contains no moving parts, and does not require liquid N2 cooling, providing a robust measurement system with no drift and little maintenance.\nRead More +\nThe SEMTECH® LASAR combines laser absorption spectrometry with very low pressure sampling for the measurement of emission gases over wide dynamic ranges. The use of a hyper-reflective gas cell in conjunction with laser light sources (TDL or QCL) enables kilometric pathlength, delivering enhanced sensitivity. Optical feedback enhances the purity of the laser beam injection in the gas cell by as much as 100x, enabling optical resolutions as low -1 as 0.005 cm. When combined with very low pressure sampling, absorption bands are narrowed resulting in zero-interference measurements. Very low pressure sampling and very low internal dead volume enables faster system response times.\nRequest a Quote","domain":"optical_engineering"}
{"url":"https://armyordnance.tpub.com/OD1003/Road-Illumination-94.htm","date":"2024-02-28T08:30:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474700.89/warc/CC-MAIN-20240228080245-20240228110245-00281.warc.gz","language_score":0.9322926998138428,"token_count":461,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__100990141","lang":"en","text":"Lesson 4/Learning Event 2\nModern development has brought about a radical change in what is\nconsidered good road illumination. The high-intensity beam of light has given way to the principle\nof more illumination and lower general intensity. The 32-candlepower lamp is sufficient with a\nnarrow, high-intensity beam, but with the general floodlighting effect desired today, a larger light\nsource is necessary. The sealed-beam headlamp has been developed to meet these requirements.\nWith the increased use of high-powered lamps have come laws enforcing the proper focusing of the\nlights and the use of dual-beam headlamps. The dual-beam headlamp is designed so that one\nfilament will be at the focal point of the reflector, and the other filament will be out of focus\nslightly so that the rays will be turned downward. Depressing the beam is accomplished by a\nswitch that changes the current from one filament to the other.\nELIMINATION OF GLARE\nCause of Glare\nAny light source is said to produce glare if it reduces the clarity of vision of anyone looking toward\nit. Practically speaking, the blinding or dazzling effect of light is not due to the brilliance of the\nlight but to the lack of illumination in the immediate vicinity through which the rays are projected.\nThe headlight, for example, that produces glare on a dark road at night would not produce glare on\na well-lighted street, and in the daytime with the sun shining, it would hardly be noticed. If the\nstrong light rays can be kept below eye level, the nuisance of glare will be eliminated.\nMany tests have been conducted by the Society of Automotive Engineers and by manufacturers to\neliminate headlight glare as much as possible and still have enough light for safe driving. Two\nbeams are specified to meet these requirements: an upper beam to provide enough light in front of\nthe vehicle while driving, and a depressed beam to avoid dangerous glare under normal conditions\nof passing. The driver is responsible for selecting the proper beam. The maximum and minimum\nintensity at important points of both beams are definitely specified and can be checked with the\nlight intensity or foot-candlemeter.","domain":"optical_engineering"}
{"url":"http://lab-instrument.en.made-in-china.com/product/BycxtXjDnQhW/China-Tr-Cp60-Color-Light-Box-600m-6-Lights-Updated-version-Laboratory-Light-Box.html","date":"2017-08-18T12:26:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886104636.62/warc/CC-MAIN-20170818121545-20170818141545-00006.warc.gz","language_score":0.651828944683075,"token_count":560,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__128333394","lang":"en","text":"Tr-Cp60+ Color Light Box - 600m - 6 Lights (Updated version) -Laboratory Light Box\n|FOB Price:||US $1-500 / Piece|\n|Min. Order:||1 Piece|\n|Min. Order||FOB Price|\n|1 Piece||US $1-500/ Piece|\n|Transport Package:||Paper/Wood Box|\n|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|\n- Model NO.: TR-CP60+\n- Structure: Desktop\n- Certification: CE, SGS, RoHS\n- Type: Measurement Type\n- Weight: 20kg\n- Specification: LED blue light excitation\n- Customized: Customized\n- Material: Steel\n- Application: School, Hosipital, Lab\n- Quality: Excellent\n- Trademark: TRYTE\n- Origin: China/Hongkong\nLight Source: D65, TL84, UV, F, CWF, TL83\nOverall Size: 695*552*502mm\nTR-CP60+ Color Light Box Features:\n1. TILO Color light box render color more accurately. With 6 different light sources(D65, TL84, CWF, TL83/U30, F, UV), which can detect the metamerism.\n2. Meets or exceeds major international standards for visual color evaluation including: ASTM D1729, ISO3664, DIN, ANSI and BSI.\n3. Easy to operate by using individual switches for each light source.\n4. Elapsed time meter for tracking optimal lamp replacement.\n5. Automatically alternating among light sources.\n6. No warm-up time or flickering which insures quick and reliable color judgment.\n7. Economic power consumption and low heat generation for high light efficiency.\n8. The dimension can be made by customized.\nAbout Light Sources:\n|Light Source||Color Light Box Application||Color temperature(k)||Power(W)|\n|D65||International standard Artificial Daylight||6500||18|\n|TL84||Applied to stores in Europe, Japan and China||4000||18|\n|CWF||(Cool White Fluorescent)American Standard||4150||18|\n|F||\"Sun-setting Light Yellow\" incandescent light source(imitation of sunset)||2700||40|\n|UV||Viewing under ultraviolet light to detect and evaluate optical brighteners or fluorescent pigments||Wavelength:365nm||20|\n|TL83||Applied to stores in Europe||3000||18|","domain":"optical_engineering"}
{"url":"https://www.elektormagazine.de/tags/meilhaus/chip","date":"2020-04-02T03:22:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370506580.20/warc/CC-MAIN-20200402014600-20200402044600-00186.warc.gz","language_score":0.9575133919715881,"token_count":163,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__141963269","lang":"en","text":"Why and How Chip-on-Board (COB) LEDs Reduce Cost and Save Energy in Lighting Designs\nLEDs compete with traditional lighting sources in a number of ways, including greater energy efficiency, longer lifetime, and smaller size. However, the one drawback that has vexed many lighting designers is cost, which is a key reason why LED manufacturers continue to innovate to improve economies of scale. One of the newest packaging solutions designed to help lower costs is chip-on-board (COB) light source modules, in which the LED chips are in the form of a semiconductor chip that is neither encased nor connected but directly mounted onto a PCB or, more generally, a substrate. This packaging style also provides several related benefits, such as greater design flexibility, better light distribution, and simpler manufacturing processes.","domain":"optical_engineering"}
{"url":"http://mechanical.illinois.edu/news/snapp-nam-make-advances-optical-strain-sensors","date":"2020-12-03T10:41:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141727627.70/warc/CC-MAIN-20201203094119-20201203124119-00427.warc.gz","language_score":0.925705075263977,"token_count":468,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__128408114","lang":"en","text":"Snapp, Nam make advances in optical strain sensors\nMechSE associate professor Sungwoo Nam and PhD student Peter Snapp have made significant strides in the field of optical strain sensors, combining graphene and colloidal photonic crystals (CPCs) to create a revolutionary new piece of technology.\nTheir paper on these new measuring tools, “Colloidal Photonic Crystal Strain Sensor Integrated with Deformable Graphene Phototransducer,” was published as the frontispiece of the leading materials journal Advanced Functional Materials.\nOther optical strain sensors provide a good indication of strain, but accurate quantification of strain requires additional equipment, adding bulk and reducing efficiency. With Snapp and Nam’s coupling of technologies, not only do the strain sensors provide a visual indication of deformation, but they have an electrically quantified readout provided by the graphene transducer. The combination of these two provides a sensor with greater sensitivity, making the hybrid a vast elevation of the strain sensors made with each individual component.\n“If you are photonic crystal person now we are offering you the possibility of an integrated, electrical readout,” Nam said. “If you are a graphene sensor person we’re telling you we can enhance your sensitivity by 100 times.”\nThere are countless possible applications for the improved strain sensors, but a specific use that Snapp has been focusing on utilizes the sensors in a space based structural health monitoring system for NASA. The thinness of the graphene would allow for the strain sensors to be placed on the structure of spacecraft so that it could be monitored for cracks or deformation. In this configuration, the sensor would change color if any damage occurred offering a visual alert and astronaut to electrically probe the sensor and get a specific measurement on the amount of strain the craft experienced. Additionally for NASA, the sensors could be used for astronaut physical health monitoring. The absence of trained physicians on long journeys could be replaced with monitoring of physical exertion using the strain sensors.\nMoving forward for this research group, they hope to improve the sensors by enhancing the electrical readout and making the sensors self-powered. Snapp’s current work surrounds solving these problems and he will move onto a career as a NASA scientist once he completes his PhD program.","domain":"optical_engineering"}
{"url":"https://applysci.com/lcd-glasses-treat-amblyopia-correct-vision/","date":"2021-05-14T01:43:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989616.38/warc/CC-MAIN-20210513234920-20210514024920-00060.warc.gz","language_score":0.9247246384620667,"token_count":218,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__56520524","lang":"en","text":"Amblyz are programmable LCD glasses that can treat amblyopia (colloquially known as “lazy eye”).\nInstead of patching, the lens over the affected eye would go dark for a few seconds out of every 30 during the prescribed patching period. As children with amblyopia often have astigmatism or nearsightedness, the glasses simultaneously corrects vision (when not occluding it).\nResearchers compared Amblyz with traditional patching on 33 children, ages 3-8. For 3 months, one group wore the patch for 2 hours per day, while the other wore Amblyz for 4 hours per day. Both groups showed similar improvement, and were able to see an average of two more lines on a reading chart.\nWEARABLE TECH + DIGITAL HEALTH SAN FRANCISCO – APRIL 5, 2016 @ THE MISSION BAY CONFERENCE CENTER\nNEUROTECH SAN FRANCISCO – APRIL 6, 2016 @ THE MISSION BAY CONFERENCE CENTER","domain":"optical_engineering"}
{"url":"http://tv-handbook.com/Lighting.html","date":"2017-11-25T03:50:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934809392.94/warc/CC-MAIN-20171125032456-20171125052456-00035.warc.gz","language_score":0.892671525478363,"token_count":1353,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__176365961","lang":"en","text":"Television is a means of changing patterns of light into electrical\nsignals for storage or transmission and then recreating those patterns\non a screen. In order to do this well, the television camera must be\npresented with properly illuminated scenes. The three important\nconsiderations are overall level, contrast range, and color temperature.\nLighting levels for television are generally set by adjusting the\nincident light, or the light striking the subject. The unit of measure\nfor incident light is the foot candle, which is the amount of light\nproduced by a standard candle at a distance of one foot. Lighting\nmeasurements are made using an incident light meter, which has a white\nplastic cover over the sensing element and a logarithmic scale\ncalibrated in foot candles. To measure the useful incident light for\ntelevision, the meter is held near the subject and pointed toward the\nThe minimum acceptable level for color television depends on the\nability of the lens to transmit light to the camera, the sensitivity of\nthe pickup tube or chip, and the amount of depth of field you need. For\nhigh-quality pictures you need something between fifty and two hundred\nfoot candles. Most cameras can be operated in light ranging from the\nminimum up to ten thousand foot candles, or fairly bright sunlight.\nWhere lighting conditions fall outside this range, steps must be taken\nto bring the lighting level into line with the capabilities of the\ncamera. With too little light, additional lighting must be added. With\ntoo much, special neutral density filters must be used on the camera.\nAbsolute rock bottom\nYou'll see cameras advertised as 2 LUX or 4 LUX cameras. 2 LUX is equal\nto .19 foot candles. 4 LUX is about .37 foot candles. I was suspicious,\nso a number of years ago I set up an ordinary candle one foot away from\na white square on a black background. I tested two cameras. The first\nwas a popular CCD camera requiring four LUX for minimum illumination.\nThe second was a broadcast camera using Saticon pickup tubes. At a\nnominal one foot candle the CCD camera produced 40 IRE units of video,\nbut the amount of noise in the picture was very objectionable. At four\nfoot candles the CCD camera produced 100 IRE units with an acceptable\nnoise level. The broadcast camera produced 20 IRE units at one foot\ncandle with the \"boost\" set at 18 dB. At four foot candles, it produced\n46 dB at 0 boost and 95 dB at 9dB boost. At four foot candles the\nbroadcast picture was obviously superior to the picture from the\nThe difference at one foot candle is essentially the willingness to\ntolerate more noise in the CCD camera, giving it more apparent\nsensitivity under extremely low light situations. To mask some of\nthe noise at low light levels, consumer cameras often use a setup, or\nblack level, of zero IRE, rather than the 7.5 IRE broadcast\nstandard. Some cameras that automatically boost the signal in low\nlight situations can also be run in manual mode where you can control\nhow much boost you want to use.\nLighting levels of five to fifteen foot candles are common in homes,\nwhile office settings tend to range from fifty to sixty foot candles.\nKeeping the reservations in the preceding paragraph in mind, consumer\ncamcorders should have plenty of light for acceptable pictures in\nContrast refers to the difference in brightness from the darkest parts of a scene to the brightest.\nUseful contrast for NTSC television is determined by the amplitude of\nthe video signal. The NTSC standard calls for a \"peak to peak\"\namplitude of one volt at 75 ohms impedance. Only seven tenths of a volt\nis used for the luminance, or black and white part of the signal.\nCommon digital video signals are 24 bit color, with eight bits each for\nred, green, and blue. This scheme allows for 256 individual\nshades from dark to light for each color. Since 24 bit color\nallows for over sixteen million colors, the limited number of shades\navailable for each color isn't usually a problem, although the\nluminance steps may be visible in monochromatic scenes.\nIf there's too little contrast many receivers will produce a\nflat, grayish picture. If there's too much contrast, details in the\nbrightest and darkest parts of the picture will be lost and the picture\nwill look too harsh.\nSince contrast is actually light reflected from the subject, it's\nmeasured using a reflectance light meter. The meter is held near a\nvariety of very light and very dark parts of the subject and pointed\ntoward each part of the subject to be measured. The ideal contrast\nrange for NTSC television is about twenty to one. This corresponds to a\ndifference of about four and one half f-numbers between the darkest and\nbrightest parts of the picture on a reflectance light meter. In\npractice, actual contrast ranges are rarely measured using a meter. A\nsubjective analysis based on camera output is generally sufficient.\nThe third consideration is color temperature. Every source of light has\na characteristic color. This color is related to its \"temperature.\"\nLower color temperatures tend to be red or orange while higher\ntemperatures tend to be green or blue. Color temperatures are measured\nin degrees Kelvin. Some examples:\n||Most Photo or TV Lights\n||Some Photo Lamps\nThe eye \"remembers\" how things are supposed to look and interprets\ncolor accordingly, regardless of the color temperature of lighting\nsources. A white sheet of paper seems white whether viewed under an\nincandescent lamp or sunlight. The eye can even adjust for \"correct\ncolor\" when two light sources of different colors are present in the\nsame scene. Sunlight streaming into a room which is also lit by\nincandescent lamps doesn't make objects it strikes appear bluish.\nTelevision cameras aren't so versatile. They must be set up to render\ncolor in a way that's pleasing to the eye. They can do this only if all\nof the important lighting sources within a scene have the same color\ntemperature. A combination of filters and electronic adjustments is\nused to adapt color cameras to each new lighting situation. Most\ncameras can adjust automatically to typical color temperatures.\nThey cannot resolve conflicts when major picture elements are lit at\ndifferent color temperatures.","domain":"optical_engineering"}
{"url":"http://nature-loups.eu/fundamentals-of-signals-and-systems-using-matlab-pdf/","date":"2018-08-20T08:52:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221216051.80/warc/CC-MAIN-20180820082010-20180820102010-00219.warc.gz","language_score":0.920905351638794,"token_count":894,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__197676465","lang":"en","text":"Further documentation is available here. Fundamentals of signals and systems using matlab pdf forward this error screen to 216. На сайте со\nFurther documentation is available here. Fundamentals of signals and systems using matlab pdf forward this error screen to 216.\nНа сайте собрано множество порно видео, порно фото а так же порно рассказы и это все совершенно бесплатно! IR radiation up to 1050 nm. Slightly more than half of the total energy from the Sun was eventually found to arrive on Earth in the form of infrared. Infrared radiation is used in industrial, scientific, and medical applications. Infrared thermal-imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.\nThermal-infrared imaging is used extensively for military and civilian purposes. Sunlight, at an effective temperature of 5,780 kelvins, is composed of near thermal-spectrum radiation that is slightly more than half infrared. Nearly all the infrared radiation in sunlight is near infrared, shorter than 4 micrometers. On the surface of Earth, at far lower temperatures than the surface of the Sun, almost all thermal radiation consists of infrared in mid-infrared region, much longer than in sunlight. Of these natural thermal radiation processes only lightning and natural fires are hot enough to produce much visible energy, and fires produce far more infrared than visible-light energy.\nIn general, objects emit infrared radiation across a spectrum of wavelengths, but sometimes only a limited region of the spectrum is of interest because sensors usually collect radiation only within a specific bandwidth. Therefore, the infrared band is often subdivided into smaller sections. Water absorption increases significantly at 1450 nm. The 1530 to 1560 nm range is the dominant spectral region for long-distance telecommunications. This region is also known as thermal infrared. The “thermal imaging” region, in which sensors can obtain a completely passive image of objects only slightly higher in temperature than room temperature – for example, the human body – based on thermal emissions only and requiring no illumination such as the sun, moon, or infrared illuminator. This region is also called the “thermal infrared”.\nNIR and SWIR is sometimes called “reflected infrared”, whereas MWIR and LWIR is sometimes referred to as “thermal infrared”. Due to the nature of the blackbody radiation curves, typical “hot” objects, such as exhaust pipes, often appear brighter in the MW compared to the same object viewed in the LW. These divisions are not precise and can vary depending on the publication. The three regions are used for observation of different temperature ranges, and hence different environments in space. L, M, N, and Q refer to the mid-infrared region.\nPlot of atmospheric transmittance in part of the infrared region. No international standards for these specifications are currently available. 700 nm and 800 nm, but the boundary between visible and infrared light is not precisely defined. The human eye is markedly less sensitive to light above 700 nm wavelength, so longer wavelengths make insignificant contributions to scenes illuminated by common light sources. 780 nm, and will be perceived as red light.\nThe S and L bands are based on less well established technology, and are not as widely deployed. Earth, with the rest being caused by visible light that is absorbed then re-radiated at longer wavelengths. Thermal radiation is characterized by a particular spectrum of many wavelengths that is associated with emission from an object, due to the vibration of its molecules at a given temperature. To further explain, two objects at the same physical temperature will not show the same infrared image if they have differing emissivity. For example, for any pre-set emissivity value, objects with higher emissivity will appear hotter, and those with a lower emissivity will appear cooler.","domain":"optical_engineering"}
{"url":"http://embedded.dapj.com/2010_09_01_archive.html","date":"2017-04-29T05:33:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123276.44/warc/CC-MAIN-20170423031203-00536-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.822384238243103,"token_count":261,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__108574208","lang":"en","text":"Nano-RK - Wireless Sensor Networking RTOS\n- C GNU tool-chain\n- Real-Time Priority Based Scheduling\n- Built-in Fault Handling\n- Energy Efficient Scheduling\n- Small Footprint <2K RAM, 16K ROM,\n- SLIPstream a simple gateway to IP\n- Eclipse IDE allows for easy development\nThe CMUcam extends upon this idea by providing a flexible and easy to use open source development environment that complements a low cost hardware platform. The CMUcam3 is an ARM7TDMI based fully programmable embedded computer vision sensor. The main processor is the NXP LPC2106 connected to an Omnivision CMOS camera sensor module.\nThe goal of the CMUcam project is to provide simple vision capabilities to small embedded systems in the form of an intelligent sensor. The CMUcam open source programmable embedded color vision sensors are low-cost, low-power sensors for mobile robots. You can use the CMUcam vision systems to do many different kinds of on-board, real-time vision processing tasks\n2014 - Pixy is a fast, low-cost vision sensor you can quickly “teach” to find objects, and it connects directly to Arduino and other controllers.","domain":"optical_engineering"}
{"url":"http://www.pkdelfin.com/en/index.html","date":"2021-11-27T08:13:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358153.33/warc/CC-MAIN-20211127073536-20211127103536-00372.warc.gz","language_score":0.9085056185722351,"token_count":133,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__8104930","lang":"en","text":"LED Mirror Light Manufacturer - Liteharbor Lighting Technology Co.,Ltd.\nBeauMe- is the brand of Liteharbo Lighting Technology Co., LTD. (referred to as Liteharbor). Liteharbor locates in Foshan, Guangdong, China, which has great advantage in transportation and manufacturing. Liteharbor factory covers an area of 1,6000㎡ , and it is equipped with hardware factory, mold factory, carton factory, assembly plant and LED plant and other factories. BeauMe brand focus on LED mirror lamp product research and development, design, prod...\nLED Mirror Light Manufacturer","domain":"optical_engineering"}
{"url":"http://dallaslapbandsurgery.org/lenticular-astigmatism-correction-through-lenses-and-glasses/","date":"2024-04-14T10:12:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00611.warc.gz","language_score":0.8969345092773438,"token_count":724,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__77230076","lang":"en","text":"Glasses with special cylindrical lenses are the most common way for lenticular astigmatism correction. According to the leading statistics that lead to ophthalmology, up to 80% of patients with vision prefer glasses of glasses for vision correction.\nGlasses can be positive (more) or negative (less), which are selected according to the type of astigmatism. In the case of aqueous highs, the vessels induce uncomfortable: pain, fatigue. Very common cylindrical lenses for lenticular astigmatism correction are combined with lenses used to correct the nearby time short-sightedness or far-sightedness that can be accompanied by astigmatism.\nIt isn’t easy to choose something that can only be a highly qualified expert. It is important to remember that the selected vessels can cause excessive damage to the eyes and visual acuity.\nAs the glasses remain in the simplest visual calibration method, they have many disadvantages. The glasses can be wet and milked at the most inappropriate time without changing the person who carries them. But there is also a medical aspect of this problem. Above all, the vessels restrict the vision of the appearance and, often, distort the size and shape of the object.\nIn addition to the glasses, contact lenses are also used to modify astigmatism. In the past, those who have astigmatism are not available for soft contact lenses. At that time, the calibration of astigmatism can only be done with a solid contact lens. Today’s astigmatism compensation is based on the use of a special conversation contact lens. These lenses can have a TORIC surface on the front or rear of the lens. The contact lens with a TORIC front surface can compensate for a cornea, and a lenticular diameter of 4.5 D for incision flattening TORIC. The contact lenses with a back surface of the TORIC can modify the astigmatism of the cornea up to 6.0 D.\nContact lens screen some benefits:\n- Contact lenses can modify high corneal astigmatism.\n- The contact lens creates a minimum change in the field of vision and distortion of the retinal image.\n- Contact lens allows optimal conditions for binary vision. In other words, it is a visual acuity with two eyes.\n- The contact lens minimizes the typical optical aberration and the effect of the prism in glasses of glasses.\n- Otherwise, contact lenses have their disadvantages.\nExperts register examples often when the restaurant lens uses various complications in the form of inflammatory processes. If most Toric contact lenses’ thickness is large, the patient is inconvenient and extends the adaptation period. The eyes are very sensitive to these lenses and are faster than compared to standard soft lenses. Also, there was a case of complications, such as increasing the probability of the surface form of the cornea and distortion.\nThis growth is due to chronic oxygen deficiency of the cornea. Also, at different points, different indexes of the thickness of the O-ring can cause several optical aberrations (distortion).\nPay attention to the fact that many patients use a soft TORIC contact lens that suffers from a corneal shape. The interrupted use of the contact lens eliminates the problem (recovering the shape of the cornea). In some cases, changes may not be remarkable. The next selection of the following TORIC contact lenses or glasses modifications may occur, and more importantly, more important and more important, the estimates of the modifications Extractive excimer laser are more important.","domain":"optical_engineering"}
{"url":"http://eloy9954qqpblog.total-blog.com/two-benefits-individuals-do-definitely-not-appreciate-in-relation-to-lasik-eye-medical-procedure-11966196","date":"2018-12-16T06:21:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827281.64/warc/CC-MAIN-20181216051636-20181216073636-00319.warc.gz","language_score":0.9532889723777771,"token_count":896,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__104099128","lang":"en","text":"Two Benefits Individuals Do Definitely Not Appreciate In Relation To LASIK Eye Medical ProcedureThe eye can be taken a look at with relative ease as to both its function and its structure. A functional assessment includes the capability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye may be checked in several ways. The patient may be asked to recognize illuminated letter or items of differing sizes on what is known as the Snellen chart.\nOn the other hand, the evaluation of the structural part of the eye may be made in numerous ways. Tension within the eyeball is measured by a \"tonometer.\" In specific illness, specifically in glaucoma, the tension in the eyeball is increased considerably.\nIt needs to be well kept in mind that a client with an eye issue may have other problems. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can signal the physician and the patient to troubles in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nOne's dependence on sight is emphasized when one deals with a short-lived or possible long-term loss of this essential sense. When restorative steps are sought, certain kinds of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some individuals are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to encourage decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this type of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people need to know. Probably, the main reason this kind of eye surgery has ended up being well accepted is because the majority of its cases had been effective.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nDue to the fact that LASIK eye surgery involves the operation of the retina, which is one of the most sensitive parts of the eye, a lot of individuals state that the operation can be extremely dangerous.\nIn other words, a easy error might nearly read more trigger an person's life time loss of sight. It is crucial to think about lots of elements before deciding whether LASIK eye surgery is the right restorative step one has to undergo.\n2. It is not a perfect treatment\nLASIK eye surgical treatment might correct your vision however it does not always mean that it can offer you a twenty-twenty. Even if analytical reports show that 70% of the patients may have 20/20 vision, this does not necessarily mean they have perfect vision also.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the ideal eye surgical treatment the way the majority check my site of people see it\nAlternatively, the evaluation of the structural part of the eye might be made in numerous ways. It should be well kept in mind that a patient with an eye issue might have other issues. Typically other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can alert the doctor and the client to problems in some disturbances of other parts of the body even before other symptoms present themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://eye2c.co.uk/index.php/eye-cond/hypermetropia","date":"2020-02-20T02:41:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144498.68/warc/CC-MAIN-20200220005045-20200220035045-00305.warc.gz","language_score":0.926426351070404,"token_count":282,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__107761871","lang":"en","text":"Hypermetropia (or hyperopia), commonly known as long sight or long sightedness, is a condition or refractive error in which light that enters the eye focusses behind the retina.\nThis is usually due to the eye being smaller than normal. When an object is brought closer to the eye the lens of the eye is required to change shape increasing its optical power to keep the object in focus.\nIf there is not enough power in the lens to keep the object in focus it will appear to be blurred. This can be at both distance and near but is particularly noticeable for near objects. The cause of hyperopia is typically genetic. It usually occurs in the early years of life.\nWhat you need to do\nHypermetropia can be treated using corrective lenses, either spectacle lenses or contact lenses. There are many lenses that can be used to correct hypermetropia in a range of powers including hi-index lenses for the management of high degrees of hypermetropia\nThe spectacle corrective lenses have a positive optical power and are convex, which help the light to be focussed onto the retina instead of behind the retina providing a clear image.\nThere are also laser treatments (laser eye surgery or laser refractive surgery) or surgical options including clear lens extraction with a multifocal intra ocular lens or intraocular lenses (phakic intraocular lenses).","domain":"optical_engineering"}
{"url":"http://www.celabes.com/china-silicone-rubber-visual-inspection-equipment/","date":"2020-06-06T14:23:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348513321.91/warc/CC-MAIN-20200606124655-20200606154655-00404.warc.gz","language_score":0.9388352036476135,"token_count":287,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__151916396","lang":"en","text":"china Silicone Rubber Visual Inspection Equipment, with the slogan of China’s Zhizhi continued to be promoted in China, the function of visual inspection equipment is now more and more perfect, and it is also used by *** In all aspects of the industry.\nSo what is the visual inspection device? What can a visual inspection device do? ***, experienced in the field of image technology and machine vision inspection systems manufacturers development and manufacturing – Sputek to answer your questions.\nThe machine vision device can be said to be the eye of the machine. The main function is to make the machine look like a human, see things, visual inspection equipment, and then make judgments like the human brain.\nIn the process of production, manual inspection personnel must have a keen sense of making an accurate judgment on the quality of a product, so that defective products are not sent to consumers. Hands. However, the current production speed is very fast, the products are also relatively responsible, or the shortcomings are vague, the traditional labor is difficult to guarantee the production volume, but also ensure the quality of the products.\nThe use of visual inspection equipment for detection can just circumvent these problems. It does not cause any damage to both the observer and the observed person, expands the visual range of the human eye, and can work for a long time.\nThis article is from https://www.topvision.net/ .","domain":"optical_engineering"}
{"url":"https://zhyqsensor.com/news/in-line-refractometer-beverages-drinks-production-process-control.html","date":"2023-02-02T01:16:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499954.21/warc/CC-MAIN-20230202003408-20230202033408-00758.warc.gz","language_score":0.8476758599281311,"token_count":150,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__119485114","lang":"en","text":"The concentration sensor is used to measure the concentration of the liquid, and the concentration of the solution is converted into an analog signal output by optical path analysis by different refractive indices of the solutions of different concentrations.\nSuitable inline real-time monitoring and control of liquid substance concentration in various industries\nCutting oil , mold release agent , quenching liquid , cleaning liquid , emulsion in the machining industry\nFood , chemical , paper , tobacco , environmental protection\nYour email address will not be published. Required fields are marked *\nExtrusion – Pressure, Temperature, Heating and Cooling Control2020-05-30\nPressure Sensor Manufacturer2020-07-17\nMelt Pressure Transducer2020-04-08","domain":"optical_engineering"}
{"url":"https://unimar.com/pages/tower-obstruction-lighting","date":"2023-10-03T07:29:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511055.59/warc/CC-MAIN-20231003060619-20231003090619-00890.warc.gz","language_score":0.930108904838562,"token_count":459,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__16781834","lang":"en","text":"Unimar is the trusted supplier for tower obstruction lighting systems. Unimar's extensive inventory includes tower obstruction lighting products that meet your specifications and comply with FAA obstruction light regulations.\nFind cost effective, energy efficient tower obstruction lighting that is consistent with your requirements.\nThe Trusted Engineers for Custom Tower Obstruction Lighting\nIf you need custom tower obstruction lighting design, the experienced engineer team at Unimar has the capabilities and equipment to provide exactly what you're looking for.\nLet's talk about your tower obstruction lighting project and how we can make it happen.\nTower Obstruction Lighting with Technical Support\nIn addition to providing in depth training, Unimar's engineer and design staff offer after-hours technical support that's just a phone call away.\nUnimar can also connect you with certified contractors for tower obstruction lighting installation.\nTower Obstruction Lighting per Federal Lighting Regulations\nUnimar's engineers offer the tower obstruction lighting systems that are appropriate for your uses, including, but not limited to:\n- red tower obstruction lighting systems,\n- white tower obstruction lighting systems or\n- dual tower obstruction lighting systems\nIf you're not clear on which exact tower obstruction lighting system is best for your specifications and regulation requirements, Unimar guides you to a decision you can be confident in.\nCommon Tower Obstruction Lighting Products\nWhile every application will require different specifications or products, L-810 lights may be just what you're looking for.\nUnimar offers both single L-810 obstruction lights as well as dual L-810 obstruction lights.\nIf you're looking for L-810 tower obstruction lighting, get product details and order online.\nTower Obstruction Lighting for Your Applications\nUnimar has tower obstruction lighting systems for all types of industries that need obstruction lights. This includes, but is not limited to:\n- Obstruction Lighting for Telecommunications\n- Broadcast LED Lights\n- LED Hazard Lights\n- Utility LED Lights\n- LED Lights for Cranes, Bridges and Buildings\n- Water Tower Lighting\n- Wind Turbine LED Lights\nFind Your Tower Obstruction Lighting and Order Online\nUnimar offers a wide variety of obstruction light products. Unimar is the depended upon supplier of high intensity, medium intensity, low intensity, steady or flashing tower obstruction lighting.","domain":"optical_engineering"}
{"url":"https://lensespro.org/jewelry-photography-lenses/","date":"2023-03-23T17:42:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945182.12/warc/CC-MAIN-20230323163125-20230323193125-00040.warc.gz","language_score":0.9329481720924377,"token_count":2087,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__169260412","lang":"en","text":"Has purchasing the best lens for jewelry photography ever crossed your mind?\nIf you want to succeed as a commercial photographer or a jeweler, having this type of optics is something you must have.\nProduct photography, specifically jewelry, needs particular attention due to its delicate naturee, reflections, and materials that need to pop out correctly.\nThe internet is still not too helpful in guiding photographers through the market. Finding the proper lens tailored to the specific needs and niches is still tricky, and many potential buyers are left to roam in the dark.\nSince I like the product and macro photography in general, I have decided to make a complication of high-quality optics, intending to help fellow photographers pick the right lens for themselves.\nThis is a macro lens from Sigma company that packs a massive punch for the buck and it offers super aperture,focal length and it is weather-sealed.\nSigma 105mm f/2.8 has an optical construction of 16 elements in 11 groups, with nine rounded diaphragm blades. The angle of view is 23.3 degrees, and a minimum focus distance is 1,02 feet, with a maximum magnification of 1x and a macro reproduction ratio of 1:1. It sports optical image stabilization in combination with a fast f/2.8 aperture. As with most macro lenses, it is difficult to shoot at the widest opening at every distance (in this case, the “macro distance”).\nI advise you to have a lot of light when shooting your jewelry; although the aperture is wide enough to capture good images under dim lighting, I like to have a lot of light for macro purposes.\nThe depth of field the lens can pull off is fantastic, and it is one of the reasons why it is the best lens for macro photography. The object of shooting stays entirely in focus, with excellent detail retention and strong contrast, while the background is completely melted away.\nThe autofocus system of this macro lens for jewelry photography is high-speed and responsive. However, focusing from the front to the back of the range can be problematic. An additional plus is silence so that it won’t irritate. The following vital thing is OIS, which is of tremendous help, especially under bad lighting, when you don’t want to use high ISO value. The image quality is excellent, with a beautiful color palette and nicely worked-out blacks.\n- Fast aperture\n- Focus system\n- No weather-resistance\nSony 90mm f/2.8-22 is a macro lens with a beautiful bokeh effect that delivers amazing images with rich details and it's worth the praise.\nSony 90mm f/2.8-22 has an optical design of 15 elements in 11 groups, with nine rounded diaphragm blades. It has an angle of view of 27 degrees, a minimum focus distance of 11,02 inches, a maximum magnification of 1x, and a 1:1 macro reproduction ratio.\nThe minimum focus distance is 0,92 feet, and the lens comes with optical image stabilization. The main reason why I put it on the best lens for jewelry photography is the incredible overall sharpness it can produce.\nThe level of detail:\nI could preserve images superior to many more expensive competitors, and even at 2:1 crops, images were ready to be used professionally. Another critical thing is the bokeh effect. I tested it from an f/2.8 to an f/16 for macro (product purposes). At an f/2.8, it produces an amazingly circular bokeh effect, with the subject in tack focus and a significant amount of sharpness. At an f/16, bokeh is still quite good if you stay relatively close to the topic.\nThe color palette is also unique, with pleasant and vibrant tones that still look natural and a gorgeously balanced contrast. I also like the focus ON/OFF switches since it adds to the ergonomic experience, and the focus is accurate and fast to respond.\nIt is also possible to limit the focus to hunting in the macro range, although it comes at the price of a slower speed. Design-wise, the lens is incredible, with fine materials used in the manufacture and a great handheld feeling.\n- Fast aperture\nImage quality from this lens is phenomenal. You will meet very sharp images with wonderfully creamy bokeh produced by its 15 elements.\nCanon 100mm f/2.8 is the best Canon lens for jewelry photography, offers an optical construction of 15 elements in 12 groups, with nine rounded blades and an angle of view of 24 degrees. The minimum focus distance is 11,81 inches, with a maximum magnification of 1x and a 1:1 macro reproduction ratio.\nThe lens is equipped with optical image stabilization and a removal & removable tripod collar. Among many great features, I want to pinpoint the manual focus under the live view that allows one to have precise control when shooting macro.\nIt is one of the reasons why I put it on the best lens for macro photography list. Optical image stabilization is somewhat noisy, but regardless of it, its help in capturing beautiful images is extraordinary. The aperture is undoubtedly good, with quite a sharpness at the maximum opening, and it is even better stepped down. The depth of field is beautiful, and at f/2.8, it is possible to capture fantastic product shots.\nThe overall quality:\nIn terms of sharpness, color rendering, contrast, and distortion control, I deserve every praise since I have yet to find any flaws. I also didn’t have issues with flares and ghosting (although I mainly tested the lens indoors). From an ergonomic perspective, I like the AF/MF and OSS ON/OFF switches that improve the experience, and the focus ring is relatively smooth.\n- Excellent design\n- Fast aperture\n- Image quality\nNikon 105mm f/2.8G is one of the best macro lens that is designed for macro photography and it delivers lovely photos with beautiful bokeh.\nNikon 105mm f/2.8 has an optical design of 14 elements in 12 groups, with nine rounded diaphragm blades. The angle of view is 23°20′, with a minimum focus distance of 1,03 feet, a maximum reproduction ratio of 1.0x, and a macro reproduction ratio of 1:1. It also has optical image stabilization and a fast aperture, and it delivers extraordinary low light performance.\nThe general sharpness is one of the reasons why I put it on the best lens for jewelry photography. These optics can produce beautiful macro product shots from a close-up distance without causing a focus hunt.\nThanks to the shallow depth of field, it defocuses backgrounds while remaining extremely sharp when focused on subjects. The focus system is incredibly responsive and delivers accurate results at a breakneck speed. I also tested it for shooting live issues, and the versatility is excellent.\nIt is possible:\nTo shoot great portraits with this lens. The image quality is gorgeous, with a natural color palette, beautiful tones, and deep contrast. The vibration reduction helps in low-light situations and achieves up to four stops of image stabilization. Design-wise, the lens is packed in a compact and solidly manufactured body with an acceptable weight for its class.\n- Versatile focal length\n- Fast aperture\n- Solid focus\n- The design could be more robust\nTokina 100mm f/2.8D has excellent bokeh and even comparable to fast primes.\nTokina 100mm f/2.8 packs an optical construction of nine elements in eight groups with eight diaphragm blades. The angle of view is 24 degrees, with a minimum focus distance of 11,81 inches, 1x maximum magnification, and a macro reproduction ratio of 1:1.\nAlthough it lacks optical image stabilization, it is equipped with a fast aperture that gives a rock-solid low-light performance. I like the manual and autofocus switch since it is pretty innovative and easy to grasp.\nI would say:\nIt is one of the reasons why I put Tokina as the best lens for jewelry photography. When shooting macro shots, especially jewelry, I recommend using a manual mode, and the same advice goes for shooting portraits. It allows one to lock the focus and avoid autofocus hunting issues. The overall sharpness levels are exquisite. The lens shows excellent image quality, with little distortion and phenomenal vignetting control.\nI am also yet to notice issues with chromatic aberrations and ghosting. The aperture of an f/2.8 is sufficient to produce stunningly bokeh results while being tack-sharp where it is needed, and it allows one to capture great shots under dim lighting. From a design point of view, I like the all-black finish and the robustness of the lens, especially since it feels good in my hands.\n- Fast aperture\n- Manual focusing\n- Overall sharpness\n- Lack of OIS\nBuying the lenses for jewelry photography can be daunting, but it can be a solid investment if you know the correct principles and are willing to follow basic guidelines.\nNo matter your shooting style, what type of jewelry you work with, or what manufacturer you like the most – if you pick any of the lenses from the article, your work will improve.\nAfter reading this article and learning something new, it’s time to choose a lens that will boost your photography. If you’re still unsure which lens is best for you, we recommend trying this one.\nYou can check out some of our other guides, such as the lens guide for fashion photography and the five best lenses for vlogging.\nDisclaimer: “As an Amazon Associate I earn from qualifying purchases.”","domain":"optical_engineering"}
{"url":"https://smartlearningapproach.com/canon-fish-eye-lens/","date":"2024-02-27T17:06:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474676.79/warc/CC-MAIN-20240227153053-20240227183053-00723.warc.gz","language_score":0.8845415115356445,"token_count":5958,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__64249596","lang":"en","text":"canon fish eye lens is a wide-angle lens that creates a unique and distorted circular perspective. This lens is popular among photographers who want to capture creative and artistic images with a distinct visual impact.\nWith a wide aperture and a short focal length, the canon fish eye lens allows for a wide field of view and emphasizes curvature, resulting in a distinctive fish-eye effect. Whether you’re shooting landscapes, architecture, or creative portraits, this lens can add a refreshing and dynamic element to your photography.\nBy expanding your perspective and pushing the boundaries of traditional composition, the canon fish eye lens unlocks a world of creative possibilities.\nUnderstanding The Canon Fish Eye Lens\nA Brief Overview Of What A Fish Eye Lens Is\nA fish eye lens is a unique type of camera lens that offers an exceptionally wide-angle view. It is named after its resemblance to the eye of a fish and is known for its distinct curvature and exaggerated perspective. Fish eye lenses are highly popular among photographers and filmmakers for their ability to capture expansive scenes with a creative and captivating effect.\n- Fish eye lenses have an extremely short focal length, typically ranging from 8mm to 16mm.\n- They feature a wide field of view, often exceeding 180 degrees.\n- Fish eye lenses produce a characteristic barrel distortion, resulting in a rounded appearance.\n- With a fish eye lens, you can capture images with a sweeping, all-encompassing feel.\nWhy The Canon Fish Eye Lens Is A Popular Choice Among Photographers And Filmmakers\nThe canon fish eye lens has gained significant popularity within the photography and filmmaking communities for its remarkable features and exceptional image quality. Let’s take a closer look at why this lens is a top choice:\nSuperior optical performance: The canon fish eye lens offers outstanding image quality with sharpness, clarity, and minimal distortion.\nWide range of applications: This lens is versatile, making it suitable for various genres of photography and cinematography, including landscape, architecture, interior, and creative experimentation.\nCreative possibilities: By employing a canon fish eye lens, photographers and filmmakers can explore unique perspectives, create dramatic effects, and experiment with composition.\nDurability and reliability: Canon lenses are renowned for their robust build quality and reliability, ensuring longevity and consistent performance.\nCompatibility with canon camera systems: The canon fish eye lens seamlessly integrates with canon dslr and mirrorless camera systems, optimizing functionality and ease of use.\nAuto focus capabilities: The canon lens provides fast and accurate auto focus, allowing photographers and filmmakers to capture fleeting moments swiftly.\nExceptional low-light performance: With wide maximum apertures, canon fish eye lenses excel in low-light conditions, delivering impressive results even in challenging lighting situations.\nCompact and lightweight design: Canon has designed its fish eye lenses to be compact and lightweight, enabling photographers and filmmakers to carry them effortlessly and use them in various shooting environments.\nThe canon fish eye lens truly sets itself apart, offering unparalleled optical performance, creative freedom, and reliable functionality for both professional and amateur photographers and filmmakers.\nCapturing Unique Perspectives\nExpanding Your Creative Possibilities With A Fish Eye Lens\nLooking to add a unique and creative touch to your photography? The canon fish eye lens might just be the perfect tool for you. With its distinct visual effects and unparalleled wide-angle capabilities, this lens allows you to capture captivating images from a whole new perspective.\nLet’s explore how the canon fish eye lens can help you expand your creative possibilities and transform your photography.\nHow The Canon Fish Eye Lens Can Help You Capture Distorted Yet Captivating Visuals:\nUnmatched wide-angle view: The canon fish eye lens boasts an incredible field of view, capturing a whopping 180 degrees. This allows you to fit more into your frame, whether you’re shooting landscapes, architecture, or even tight indoor spaces.\nDistorted and dramatic perspective: One of the most distinctive features of the fish eye lens is its ability to create a visually striking distortion. By curving straight lines and bending the edges of your images, this lens adds a unique and captivating twist to your shots. The exaggerated curvature can make ordinary scenes appear extraordinary and surreal.\nCreative compositions: The fish eye lens opens up endless opportunities for creative compositions. Experiment with framing and positioning your subjects in unconventional ways, taking advantage of the lens’ distortion to create compelling and dynamic images. This lens gives you the power to capture eye-catching visuals that stand out from the crowd.\nClose-up detail: While fish eye lenses are primarily known for their wide-angle capabilities, they can also be used for up-close photography. With its minimum focusing distance, the canon fish eye lens allows you to capture intricate details and textures with excellent sharpness and clarity. Explore the world of macro photography like never before.\nVersatility in different genres: The canon fish eye lens is not limited to a specific genre of photography. It can be effectively used in various fields, such as portraits, street photography, event coverage, and even astrophotography. Its ability to distort and transform scenes adds a unique touch to any style or subject matter.\nEnhanced creativity in post-processing: When paired with powerful editing software, the canon fish eye lens opens up even more possibilities for creative expression. Utilize the lens’ distortion to experiment with different edits, manipulating perspectives, and transforming your images into visually stunning artworks.\nGet ready to push the boundaries of your photography with the canon fish eye lens. With its wide-angle view, distorted perspectives, and endless creative possibilities, this lens will enable you to capture visually captivating images that will leave a lasting impression.\nStep out of the ordinary and into the extraordinary with the canon fish eye lens.\nUtilizing Distortion As An Artistic Tool\nEmbracing The Unique Distortion Effects Of A Fish Eye Lens\nWhen it comes to capturing unique and captivating photographs, photographers often turn to different lenses to achieve their desired results. One such lens is the fish eye lens, known for its distinct distortion effects. While some may see this distortion as a limitation, it can actually be utilized as an artistic tool to create extraordinary visuals.\nWe will explore how to embrace and use the distortion effects of a fish eye lens to elevate your photography game.\nHow To Use Distortion To Create Dynamic And Eye-Catching Compositions\nA fish eye lens offers a wide-angle view, capturing a larger field of view compared to a standard lens. The distortion effects of the fish eye lens can create a sense of depth, exaggeration, and a unique perspective in your photographs.\nHere are some key points to keep in mind when using distortion as an artistic tool:\nExperiment with different angles and subjects: The distortion effects of a fish eye lens can be especially pronounced when you shoot close to your subject. Try different angles and positions to find the most interesting composition.\nEmphasize leading lines and curves: The distortion can enhance leading lines and curves in your photographs, creating a visually appealing effect. Look for architectural elements, natural formations, or patterns that can be accentuated using the lens.\nPlay with symmetry and balance: The distortion effects can create a sense of symmetry or asymmetry in your compositions. Use this to your advantage by finding subjects or scenes that have interesting symmetry or creating an intentional imbalance for added visual interest.\nHighlight foreground elements: The exaggerated distortion at the edges of the frame can create a frame within a frame effect. Use this to your advantage by placing interesting elements in the foreground, adding depth and dimension to your photographs.\nCapture unique perspectives: The fish eye lens allows you to capture perspectives that are not possible with other lenses. Use this to your advantage by getting close to your subject and incorporating interesting foreground elements to add a sense of depth and scale.\nBy embracing the unique distortion effects of a fish eye lens, you can add a new dimension to your photography. Experimenting with different angles, subjects, and compositions will allow you to create dynamic and eye-catching visuals that stand out from the crowd.\nSo, next time you pick up your camera, don’t be afraid to embrace the distortion and let your creativity soar.\nEnhancing Depth And Dimension\nCreating A Sense Of Depth And Dimension With The Canon Fish Eye Lens\nThe canon fish eye lens is a powerful tool that can enhance your photography by adding depth and dimension to your images. Whether you’re capturing landscapes, architecture, or unique perspectives, this lens can help you create stunning visuals that stand out.\nHere are a few tips and techniques for maximizing the impact of your visuals using the canon fish eye lens:\nExperiment with different angles: The wide-angle view of the fish eye lens allows you to capture a wider field of view, resulting in a more immersive and expansive image. Try shooting from different angles to play with perspectives and find the most visually interesting composition.\nEmphasize leading lines: Leading lines are a strong compositional element that can create depth and guide the viewer’s eye through the image. With the fish eye lens, the exaggerated perspective can make leading lines more prominent. Look for lines in your scene, such as roads, fences, or architectural features, and use them to lead the viewer into the image.\nInclude foreground elements: Adding interesting foreground elements can instantly enhance the depth of an image. The fish eye lens has a unique ability to bring foreground objects closer to the viewer, creating a more immersive experience. Look for interesting objects or textures that can add depth and dimension to your composition.\nExplore distortion creatively: The distortion effect of the fish eye lens can be creatively used to your advantage. While distortion may not be ideal for certain subjects, it can add a unique and artistic touch to others. Experiment with different subjects and compositions to see how distortion can enhance the overall atmosphere and mood of your images.\nUse reflections to your advantage: Reflections can add a sense of depth and dimension to your images, and the fish eye lens can help you capture them in a unique way. Whether it’s a reflection in water, glass, or shiny surfaces, incorporating these reflections into your composition can create captivating visuals.\nPay attention to lighting: Lighting plays a crucial role in creating depth and dimension in any photograph. With the wide-angle view of the fish eye lens, light sources can become more prominent and add an extra layer of interest. Pay attention to how light interacts with your subjects and use it strategically to enhance the three-dimensional feel of your images.\nCapture wide open spaces: The fish eye lens is particularly effective in capturing wide open spaces. Whether it’s a vast landscape or an expansive sky, the lens can help you convey the vastness and scale of your surroundings, adding a sense of depth and dimension to your images.\nExperiment with editing: Editing can further enhance the depth and dimension captured with the canon fish eye lens. Play with contrast, shadows, and highlights to bring out the details in different parts of the image. Additionally, exploring black and white conversions or adding a vignette effect can also help create a more dramatic and immersive visual experience.\nPractice and experiment: Like any other photography technique, mastering the use of the fish eye lens takes practice and experimentation. Take the time to familiarize yourself with the lens and its capabilities, and don’t be afraid to try new ideas and compositions. The more you practice and experiment, the better you’ll become at creating captivating visuals with the canon fish eye lens.\nRemember, the canon fish eye lens is a powerful tool that can add depth and dimension to your images, but it’s up to you as the photographer to utilize it creatively. With experimentation and practice, you can unlock the full potential of this lens and create visually stunning photographs that truly stand out.\nExperimenting With Composition\nBreaking Traditional Composition Rules With A Fish Eye Lens\nIf you’re looking to add a unique and eye-catching element to your photography, experimenting with composition using a fish eye lens can offer endless creative possibilities. Traditionally, composition rules like the rule of thirds and leading lines are followed to create visually appealing images.\nHowever, with a fish eye lens, you have the opportunity to break these rules and create unconventional and captivating compositions. Here are some key points to consider when exploring the world of fish eye lens composition:\nDistortion as an artistic tool: One of the main characteristics of a fish eye lens is its extreme amount of distortion. Rather than considering this distortion as a limitation, embrace it as a creative tool. The exaggerated curves and unusual perspectives can add a sense of drama and surrealism to your images.\nEmphasizing the subject: With a fish eye lens, you can place your main subject at the center of the frame and have the distorted surroundings wrap around it. This technique can create a striking visual impact and draw attention to your subject, making it the focal point of the composition.\nPlaying with angles and lines: Experiment with different angles and lines to take advantage of the fish eye lens’s ability to exaggerate straight lines. Tilt the camera or position yourself at a low or high angle to create dynamic diagonals or verticals that can lead the viewer’s eye through the image.\nIncluding the surroundings: A fish eye lens has an incredibly wide field of view, allowing you to capture not only the main subject but also the surrounding environment. Use this to your advantage by incorporating interesting elements in the foreground or background to provide context and add depth to your composition.\nFraming with curves: The fish eye distortion can create natural curves that can be used as framing elements in your composition. Look for arches, bridges, or any other curved structures that can enhance the overall visual interest of your image.\nFish eye lenses offer endless creative opportunities to break free from traditional composition rules and explore new artistic horizons. By embracing distortion, playing with angles and lines, including the surroundings, and incorporating framing elements, you can create visually stunning and engaging compositions that command attention.\nSo grab your fish eye lens and step outside the conventional to unleash your creativity.\nEmphasizing Leading Lines And Curves\nUsing Leading Lines And Curves To Your Advantage With A Fish Eye Lens\nThe canon fish eye lens is a powerful tool that allows photographers to capture unique and eye-catching images. One of the key advantages of this lens is its ability to emphasize leading lines and curves in a photo, adding depth and interest to your compositions.\nWhether you’re shooting landscapes, architecture, or even portraits, utilizing leading lines and curves can take your photography to the next level. Here’s how the canon fish eye lens can help you make the most of these elements:\n**enhancing leading lines:**\n- Leading lines are powerful compositional tools that guide the viewer’s eye through an image, creating a sense of movement and direction. The fish eye lens amplifies the effect of leading lines, making them more prominent and dynamic.\n- The lens’s ultra-wide field of view captures a wide range of details, allowing you to incorporate leading lines into your shots with ease. From converging lines on a road to winding trails through a forest, the fish eye lens enhances the impact of these lines, drawing attention to the subject and creating a visually engaging composition.\n- With the fish eye lens, you can experiment with different subjects and scenes to make the most of leading lines. Whether you’re working with natural elements like rivers or man-made structures like bridges, the lens will emphasize the lines, giving your photos a striking and captivating quality.\n- Curves add a sense of elegance and fluidity to an image, and the fish eye lens accentuates these curves, creating unique and visually appealing compositions.\n- Whether you’re photographing architecture with sweeping curves or capturing the contour of a landscape, the fish eye lens widens the curves, making them more pronounced and eye-catching.\n- When shooting portraits, the fish eye lens can be used creatively to accentuate the curvature of a face or the contour of a body, resulting in abstract and artistic images that stand out.\n- By paying attention to the curves in your subject matter and integrating them into your composition with the fish eye lens, you can create visually pleasing and impactful photographs.\nOverall, the canon fish eye lens is a fantastic tool for photographers who want to emphasize leading lines and curves in their images. By harnessing the lens’s unique perspective and ultra-wide field of view, you can capture stunning and dynamic compositions that truly stand out.\nWhether you’re photographing architecture, landscapes, or people, the fish eye lens will help you make the most of these elements, adding depth and interest to your photographs.\nWorking With Close-Up Shots\nExploring The Unique Close-Up Capabilities Of The Canon Fish Eye Lens\nIf you’re looking to capture stunning close-up shots with unique perspectives, the canon fish eye lens is a must-have addition to your photography gear. With its wide-angle view and distinct distortion, this lens allows you to get up close and personal with your subjects, revealing intricate details and textures that you might otherwise miss.\nTips For Capturing Stunning Details And Textures Up Close:\nUse the right focus: When shooting close-up with the canon fish eye lens, it’s essential to pay attention to your focus point. Experiment with different focal lengths and aperture settings to achieve the desired level of detail.\nGet up close and personal: One of the key advantages of the fish eye lens is its ability to capture objects just inches away from the camera lens. Take advantage of this unique feature by exploring the textures, patterns, and nuances of your subject up close.\nPlay with perspective: The fish eye lens excels in creating distortion and unique perspectives. Use this to your advantage by positioning your subject in a way that emphasizes its shape or creates an unconventional composition.\nExperiment with lighting: Close-up shots allow you to manipulate lighting to enhance details and textures. Utilize natural light or experiment with creative lighting setups to create dramatic effects and emphasize specific elements of your subject.\nPay attention to backgrounds: When shooting close-up, it’s important to consider the background. Look for complementary colors, textures, or contrasting elements that can enhance the overall visual impact of your shot.\nBe patient and observant: Close-up photography requires a keen eye for detail and patience. Take the time to study your subject, notice the smallest nuances, and wait for the perfect moment to capture the shot.\nTry different angles: Explore different angles and perspectives to add depth and interest to your close-up shots. Don’t be afraid to experiment and get creative with your compositions.\nUse macro accessories: To further enhance the close-up capabilities of the canon fish eye lens, consider using additional macro accessories such as extension tubes or close-up filters. These accessories allow you to get even closer to your subjects, revealing microscopic details and textures.\nPost-processing techniques: Once you’ve captured your close-up shots, explore post-processing techniques to further enhance the details and textures. Experiment with sharpness, contrast, and color adjustments to create stunning, eye-catching images.\nPractice and experiment: Like any aspect of photography, mastering the art of close-up shots takes practice and experimentation. Don’t be afraid to try new techniques, learn from your results, and continuously refine your skills.\nWith the canon fish eye lens and these tips in mind, you’ll be well on your way to capturing stunning close-up shots that highlight the intricate details and textures of your subjects. So grab your camera, get up close, and let your creativity soar!\nAchieving A 360-Degree Perspective\nImmersing Your Audience With A 360-Degree Perspective\nHave you ever wanted to capture breathtaking panoramic shots that immerse your audience in a truly unique perspective? Look no further than the canon fish eye lens. With its distinctive curved shape, this lens allows you to achieve a 360-degree view, giving your photos a creative edge.\nLet’s delve into some techniques for capturing stunning panoramic shots with the canon fish eye lens.\nTechniques For Capturing Panoramic Shots With The Canon Fish Eye Lens\nChoose the right settings: To fully utilize the capabilities of the canon fish eye lens, it’s essential to set your camera to manual mode. This will allow you to have complete control over the exposure settings and focus, resulting in better panoramic shots.\nFind your focal point: When composing your shot, it’s crucial to identify a focal point that will anchor the entire scene. This can be a person, a building, or even a unique object that catches the viewer’s attention. By placing your focal point strategically, you can guide the viewer’s eye through the entire 360-degree frame.\nExperiment with angles: One of the advantages of the canon fish eye lens is its ability to capture unique angles that can add drama and depth to your photographs. Play around with different perspectives, such as shooting from a low angle or even from above, to create visually engaging images.\nMind the distortion: The curved shape of the canon fish eye lens can result in distortion around the edges of your images. Embrace this distortion as a creative element rather than trying to eliminate it entirely. It can add a surreal and dynamic feel to your photos, enhancing the 360-degree perspective.\nUse natural frames: Look for natural frames within your environment that can further enhance the immersive experience. This could include doorways, windows, or even tree branches. By using these frames strategically, you can draw the viewer’s attention to the central focal point while adding depth and context to your shots.\nExperiment with long exposures: Long exposure photography can add a sense of motion and drama to your panoramic shots. Try using a slow shutter speed to capture moving subjects, such as waves or people walking, while maintaining the 360-degree perspective. This technique can result in captivating and dynamic images.\nPost-processing magic: Once you’ve captured your panoramic shots, don’t forget to unleash your creative side during post-processing. Experiment with editing tools to enhance colors and contrast, further accentuating the unique qualities of the fish eye lens. Remember to keep the edits subtle and natural-looking for a more visually pleasing result.\nNow that you have a grasp of the techniques for capturing panoramic shots with the canon fish eye lens, it’s time to pick up your camera and set off on an adventure. With the ability to immerse your audience in a 360-degree perspective, you’ll be able to create truly memorable and impactful photographs that will captivate viewers.\nOvercoming Challenges And Limitations\nAddressing Potential Challenges And Limitations Of Using A Fish Eye Lens:\nUsing a fish eye lens can be an exciting way to capture unique and creative photographs. However, there are some challenges and limitations that you may encounter when using this type of lens. Let’s explore these challenges and discuss how you can overcome them to get the best results possible.\nDistortion: One of the main challenges of using a fish eye lens is the significant distortion it can create. This distortion causes straight lines to appear curved or bent, which may not be desirable in certain situations. However, you can address this challenge by following these tips:\nKeep the subject at the center: Placing the subject at the center of the frame can minimize the distortion effect.\nAvoid straight lines near the edges: By avoiding straight lines near the edges of the frame, you can reduce the noticeable distortion.\nImage stretching: Another limitation of fish eye lenses is the stretching of objects near the edges of the frame. This can make them appear unnaturally elongated. To mitigate this issue, consider the following tips:\nPosition the subject away from the edges: By placing the main subject away from the edges, you can minimize the stretching effect on important elements of your composition.\nExperiment with different shooting angles: Changing your shooting angle can help you find a perspective that minimizes the stretching effect while still capturing the desired scene.\nLimited framing options: Due to the extreme field of view of fish eye lenses, it can be challenging to frame your shot the way you want. To overcome this limitation, try these techniques:\nExperiment with composition: With a fish eye lens, you have more possibilities for creative compositions. Don’t be afraid to experiment and explore different angles and perspectives.\nCrop in post-processing: If needed, you can crop your image in post-processing to eliminate unwanted elements and fine-tune the composition.\nVignetting and lens flare: Fish eye lenses are prone to vignetting (darkening at the edges of the frame) and lens flare (unwanted light artifacts). While these effects can add a unique touch to your photos, they may not always be desirable. Consider these suggestions:\nUse a lens hood or shade: Using a lens hood or shade can help reduce the occurrence of lens flare and minimize vignetting.\nAdjust your shooting position: Experiment with different shooting angles to find positions that minimize the occurrence of these effects.\nLimited focal length versatility: Fish eye lenses typically have fixed focal lengths, which can limit their versatility in certain situations. To overcome this limitation, consider using the fish eye lens in combination with other lenses or exploring creative ways to incorporate this unique perspective into your photography.\nRemember, while there may be challenges and limitations when using a fish eye lens, embracing and working with these characteristics can lead to stunning and visually striking images. With practice and experimentation, you can overcome these challenges and achieve the desired results.\nFrequently Asked Questions Of Canon Fish Eye Lens\nWhat Is A Fish Eye Lens And What Does It Do?\nA fish eye lens is a specialized wide-angle lens that captures an extremely wide field of view, up to 180 degrees or even more. It creates a distinct, curved perspective with a unique distortion effect, allowing you to capture unique and creative images.\nHow Does A Canon Fish Eye Lens Work?\nA canon fish eye lens works by using a shorter focal length and a curved optical element, which allows it to capture an expansive 180-degree field of view. The lens design bends light rays to create the characteristic fish eye effect, resulting in a curved, distorted image that can add drama and creativity to your photos.\nWhat Are The Advantages Of Using A Fish Eye Lens?\nUsing a fish eye lens opens up a whole new creative world in photography. It allows you to capture unique, exaggerated perspectives and distortions, giving your images a fun and artistic touch. It’s perfect for capturing wide landscapes, architectural shots, and creating dramatic and dynamic compositions.\nCan I Use A Fish Eye Lens For Everyday Photography?\nWhile a fish eye lens can be used for everyday photography, it may not always be the ideal choice. The distinctive wide-angle distortion can be too pronounced for certain subjects or scenes, resulting in a less natural-looking image. However, if you enjoy experimenting with creative perspectives, a fish eye lens can add excitement to your everyday shots.\nAre Fish Eye Lenses Only Suitable For Specific Camera Models?\nFish eye lenses are typically designed to fit specific camera mounts, including canon. So, if you have a canon camera, you can find canon fish eye lenses specifically made for your camera model. Just make sure to check compatibility and choose a lens that is designed for your particular camera mount.\nWhat Are Some Tips For Using A Fish Eye Lens Effectively?\nTo make the most of your canon fish eye lens, consider the following tips:\n– experiment with different angles to create unique compositions. – be mindful of lens flare, as wide angles are more susceptible to it. – get up close to your subjects to emphasize distortion and add impact. – use the lens to capture sweeping landscapes or dramatic architectural shots. – don’t be afraid to embrace the lens’s unique characteristics and have fun with your photography.\nTo sum up, the canon fish eye lens is an exceptional tool for photographers and videographers alike. Its innovative design and wide-angle capabilities allow for creative and unique perspectives that can truly enhance visual storytelling. With its high-quality construction and precise optics, this lens provides sharp and distortion-free images, ensuring professional-grade results.\nWhether you’re capturing dramatic landscapes, immersive interiors, or stunning portraits, the canon fish eye lens offers a versatile solution that pushes the boundaries of creative expression. Moreover, its compact and lightweight design makes it a great addition to any photographer’s gear collection, enabling easy transportation and quick deployment in the field.\nWith its remarkable performance and outstanding reputation, the canon fish eye lens is a must-have accessory for anyone seeking to take their photography or videography to the next level.","domain":"optical_engineering"}
{"url":"http://www.outpouringcomics.com/photograph-the-sun/","date":"2019-07-23T17:24:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195529481.73/warc/CC-MAIN-20190723172209-20190723194209-00252.warc.gz","language_score":0.9092972278594971,"token_count":1211,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__183364479","lang":"en","text":"Guidelines for Photograph the Sun – Capturing the Pure Essence!\nThe sun is a flagrantly poor photographic target because of its extreme brightness and constant emissions of damaging ultraviolet and infrared radiation. But if you have the right equipment, the photograph the sun can be a challenging and rewarding subject.\nThe most important thing about viewing and shooting the sun is eye-safety. You don’t see the sun through any optical instrument without proper filtration. If you are not careful, it would permanent damage to your eye.\nHere is the perfect guide for photographing the sun.\nBasic Solar Photography Gear\nSolar Viewing Glasses\nWhile aiming your camera at the bright sun, you will need a pair of solar viewing glass. Photographing the sun you will need to use some special filter. Using a large size lens or telescope, it will give good details and a tracking mount is helpful.\nTripod will help you to get the sharpest possible image. If you filter with a solar filter, your shutter speeds will be slower. With the super-telephoto focal length lens, telescope or spotting scope, you will get extra stability of a tripod.\nRemote Shutter Release\nA remote shutter release will help you to reduce the vibrations when firing your camera on a tripod.\nOne of the popular ways to photograph the sun and solar eclipses are Digiscoping. Most telescopes and spotting scopes enable cameras to be affixed to the scopes through adapters.\nThe major benefit of digiscoping is that you can achieve the high levels of magnification without much of the expenses of an exotic photographic telephoto lens.\nWhen pointing camera at sun, you will need a solar filter for your camera and lens. You should always prefer a properly designed filter like neutral density filters. This is because these filters are only designed for viewing the sun and is designed not only to dim the sunlight but also protect your eyes and equipment from ultraviolet and indicated radiation.\nMylar While-light Solar filters come in various sizes and shapes. It looks like around and has tether holes to secure to your camera and lens. Some people using sheets of #14 welder’s glass which mount and or held in front of the camera.\nThe intermediate filter is designed for solar imaging which mounts between your camera and lens.\nWhen photographing the sun, you will determine the camera and exposure settings. There are several variables like filter type and strength, focal length, the brightness of the sun and time of the year.\n- Shutter Speed\nThe sun is very far away. When shooting the sun, you will want a quick shutter to freeze the action and neglect the motion blur. While using tripod-mounted super telephoto lenses, you should keep your shutter period as short as possible.\nYou have to able to photograph the sun at your camera’s native ISO setting. The ISO setting is usually around ISO 100 or ISO 200 which depends on your manufacturer and your camera model. Reduce the frame movement you need to bump up your ISO that depends on the lens and filter.\nUsing various apertures will give a variety of looks to choose from when you are editing. After setting your ISO and shutter speed, you have to adjust your aperture to control exposure. Using the solar filter, the sun will be the only thing visible in the frame, so you people use spot metering and keep your lens aperture in the sweet spot and then the sun in the center of the frame.\nThe process of Photograph the Sun\nPhotographing the sun is the simplest process but the execution will be a challenged one.\nGear up – check tripod, camera, lens, solar filter, remote release.\nIf you are working at long focal lengths and high magnification, aiming into the sky at a relatively small target is difficult. With the camera aimed at the sun, you have to adjust your aperture, shutter speed, ISO and focus. Now, it is time to start shooting. Discharge a few frames and use image-stacking software to blend more detailed images.\nIf you point a camera at the sun, does it damage the camera?\nEvery photographer asks “will the sun damage my camera?” while they photography the sun\nDon’t worry! It depends on the camera and the situation. The important reason to be careful when photographing a camera at the sun is that the camera lens can act as a magnifying glass and focus the sun rays into a small area on the shutter of the camera. If you place it in a long enough, it can burn a hole in the shutter or aperture of the lens itself.\nSo, you don’t keep it in the same position for a long period of time. If you are using digital or video cameras, the sensor is overloaded and the sun causes some blooming problems. If you use older cameras, it can cause permanent damage. Otherwise, if using a newer camera, there is only temporary.\nDon’t focus the sun with your naked eyes. If you do, permanent damage to your eyesight and even blindness may happen. While viewing the sun, you should wear a solar viewing glass.\nAs well as don’t point a camera at the sun unless the optics are fitted with a certified solar filter. Optics can magnify the intensity and brightness of sunlight and can cause damage to your equipment.\nDon’t look at the sun through the viewfinder of a rangefinder camera, because the optical viewfinder will not protect your eyes from the sun’s damaging light.\nUse only live view or an electronic viewfinder and don’t point an unfiltered digital camera at the sun because of the possibility of damaging the sensor with concentrated, unfiltered sunlight.\nTake perfect photos of the sun without damaging you and your camera and lens. Taking pictures of the sun at any time with these guidelines and move around and take lot of pictures.","domain":"optical_engineering"}
{"url":"https://www.bmw-motorrad.co.uk/en/engineering/detail/Safety/led-main-headlight.html","date":"2023-12-09T15:45:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100912.91/warc/CC-MAIN-20231209134916-20231209164916-00821.warc.gz","language_score":0.9649353623390198,"token_count":180,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__11738884","lang":"en","text":"LED main headlight.\nBMW Motorrad has been a pioneer when it comes to motorcycling safety for decades. Thanks to its innovative strength, the manufacturer quickly established itself as a trendsetter in this field, and will continue to achieve new benefits when it comes to motorcycling safety in the future. The latest example for BMW Motorrad's innovative strength in this field is the full-LED headlight with integrated daytime riding light, which was available for the first time in series production motorcycle- the R 1200 GS. This LED main headlight illuminates the road with a hitherto unmatched light clarity as the only one of its kind in the world. The LED for the high-beam headlights is vastly different and has a strong light intensity with its two glass lenses. Furthermore, the optional accessory also has a tail lamp, which provides an even better rear view with its two bars.","domain":"optical_engineering"}
{"url":"http://3demmethods.i2pc.es/index.php/2012Zheng_Covariance","date":"2019-04-21T06:58:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578530253.25/warc/CC-MAIN-20190421060341-20190421082341-00243.warc.gz","language_score":0.8688135147094727,"token_count":176,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__74297804","lang":"en","text":"Zheng, Y.; Wang, Q. & Doerschuk, P. C. Three-dimensional reconstruction of the statistics of heterogeneous objects from a collection of one projection image of each object. Journal of the Optical Society of America. A, Optics, image science, and vision, 2012, 29, 959-970\nAn estimation problem for statistical reconstruction of heterogeneous three-dimensional objects from two-dimensional tomographic data (single-particle cryoelectron microscope images) is posed as the problem of estimating class probabilities, means, and covariances for a Gaussian mixture where both the mean and covariance are stochastically structured. Both discrete (i.e., classes) and continuous heterogeneity is included. A maximum likelihood solution computed by a generalized expectation-maximization algorithm is presented and demonstrated on experimental images of Flock House Virus.","domain":"optical_engineering"}
{"url":"http://infinityloopers.com/olympus-reveals-large-distant-m-zuiko-camera-lens/","date":"2013-05-20T21:26:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368699238089/warc/CC-MAIN-20130516101358-00088-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9178288578987122,"token_count":310,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__65672452","lang":"en","text":"Olympus has revealed new 750-300mm super telephoto lens. This lens if especially build for Olympus PEN and OM-D ranges.\nThis f/4.8-6.7 lens of Olympus offers an equivalent focal length of 150 to 600mm in terms of 35mm, thus enabling to capture the stills of distant objects.\nAlthough the lens is especially designed for OM-D and PEN series of cameras, but it is boast leading technology just like predecessor. The newest technology of MSC mechanism and advanced ZERO (Zuiko Extra-low Reflection Optical) lens coating enable to shoot amazing photos.\nThe Super ED (Extra-low Dispersion), ED and HR (High Refractive index) lens reduces the ghosting effect and flare across the whole zoom of the camera, even in high brightness environment the result is really very promising.\nA circular aperture is fitted to achieve high quality smooth effects in your stills, focusing the object and defocusing the background. The autofocus mechanism is equally promising, it is extra fast thanks to MSC (movie and still compatible) technology which is exceptional in this case.\nAs Panasonic camera also includes Micro Four Thirds format, the lens is also compatible with G series compact cameras of Panasonic.\nThe price of M.ZUIKO ED 75-300mm f/4.8-6.7 II lens will be $499.99, which as the company promise is really adjustable for this large distant camera lens comparable to previous lenses.","domain":"optical_engineering"}
{"url":"https://centroopticogibraltar.com/cosmetic-lenses/","date":"2023-04-01T03:58:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949701.0/warc/CC-MAIN-20230401032604-20230401062604-00432.warc.gz","language_score":0.8528806567192078,"token_count":176,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__184066770","lang":"en","text":"AIR OPTIX® COLORS contact lenses combine beautiful color with a highly breathable material for your eyes, and a smooth surface for comfortable lens wear. The unique 3 in 1 color technology blends with the eye color to provide a beautiful, natural appearance. AIR OPTIX® COLORS contact lenses are available in a full range of beautiful colors.\nAIR OPTIX® COLORS are a monthly disposable contact lens from Alcon.\nProvide an advanced combination of oxygen and moisture for a healthy, natural feeling.\nUnique moisture agent that helps lubricate the lens for all day comfort from the start.\nAIR OPTIX® Colors breathable contact lenses deliver an advanced combination of oxygen and moisture for a healthy, natural feeling. The lens also offers excellent all-day comfort right from the start. Clinical research shows the lens sustains its performance through a month of wear.","domain":"optical_engineering"}
{"url":"https://www.jx-wisevision.com/industrial-control-oled/","date":"2024-04-16T05:21:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817043.36/warc/CC-MAIN-20240416031446-20240416061446-00651.warc.gz","language_score":0.9033639430999756,"token_count":189,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__162968219","lang":"en","text":"Introducing the Industrial Control Oled, brought to you by Jiangxi Wisevision Optronics Co., Ltd., a leading manufacturer and supplier of cutting-edge display technologies in China. Our state-of-the-art factory is dedicated to producing high-quality OLED displays for industrial control applications that demand precision and reliability. Our Industrial Control Oled is designed to meet the strict requirements of industrial environments, providing superior performance, durability, and flexibility. With advanced features such as high brightness, wide viewing angles, and low power consumption, our OLED displays deliver exceptional visual performance in a range of industrial control systems. At Jiangxi Wisevision Optronics Co., Ltd., we are committed to pushing the boundaries of display technology to meet the evolving needs of our customers. With a focus on innovation and quality, we strive to provide the best solutions for industrial control applications. Trust in our expertise and experience to deliver the Industrial Control Oled that exceeds your expectations.","domain":"optical_engineering"}
{"url":"https://infiniummedical.com/product/s300-surgical-lights/","date":"2023-02-09T02:34:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501066.53/warc/CC-MAIN-20230209014102-20230209044102-00568.warc.gz","language_score":0.859856903553009,"token_count":217,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__139786786","lang":"en","text":"Modern Surgical Lighting with Touch Controls\nA sleek high adjustable intensity LED surgical lighting system with a touch-screen and wireless remote features. This well-built line is designed to minimize contamination from blood, chemicals, and air circulation and is easy to clean.\nThe S300 series from Infinium offers the right balance of ergonimics, style, features, and efficiency for a variety of medical and surgical applications. Take a modern approach with long-lasting cool lighting that is easily adjustable from a touch-screen and hand control interface.\nThe S300 features:\n- Bright 3-step intensity max 130,00 lux output\n- 3-step light field size adjustment 5.9″ to 9.84″\n- 3-step color temperature adjustment 3,800K / 4,300K / 4,800K\n- Color rendering index of Ra96 / R9 95\n- 3 modes of operation: (Surgical, Exam, Dental)\n- Single, dual, ceiling, wall, and mobile mounting options\n- Battery backup option","domain":"optical_engineering"}
{"url":"http://thoughtsofnigel.blogspot.com/2009/09/open-source-camera-software.html","date":"2018-07-22T09:03:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593142.83/warc/CC-MAIN-20180722080925-20180722100925-00626.warc.gz","language_score":0.9438573122024536,"token_count":102,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__113055374","lang":"en","text":"Stanford photo scientists are out to reinvent digital photography with the introduction of an open-source digital camera, which will give programmers around the world the chance to create software that will teach cameras new tricks.\nThe result is that\ncamera performance will be no longer be limited by the software that comes pre-installed by the manufacturer. Virtually all the features of the Stanford camera – focus, exposure, shutter speed, flash, etc. – are at the command of software that can be created by inspired programmers anywhere","domain":"optical_engineering"}
{"url":"https://wiki.micdoodle8.com/wiki/Beam_Reflector","date":"2018-12-19T04:19:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376830479.82/warc/CC-MAIN-20181219025453-20181219051453-00217.warc.gz","language_score":0.756763219833374,"token_count":103,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__191678614","lang":"en","text":"The Beam Reflector is used to extend the range of energy beams. Without using a Beam Reflector, energy beams have a maximum range of 16 blocks. With Beam Reflectors where needed, the beam can be extended indefinitely.\nThe Beam Reflector can also change the direction of the beam: it will always send the beam to the next Beam Receiver or Beam Reflector in line.\nTip: It is possible to right-click the Beam Reflectors to rotate them to define where the beam will point to.","domain":"optical_engineering"}
{"url":"https://jafedecorating.com/vacuummetallizing/","date":"2021-07-26T00:17:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151972.40/warc/CC-MAIN-20210726000859-20210726030859-00516.warc.gz","language_score":0.7984885573387146,"token_count":291,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__101713805","lang":"en","text":"JAFE Decorating offers thin film vacuum deposited coating services, specializing in convex first surface chrome mirrors and protected silver high reflective mirrors.\nOther products include neutral density filters, beamsplitters, decorative coatings & EMI/RFI shielding.\nWe utilize planar magnetron sputtering technology to deposit a wide range of metals, and reactive sputtering to deposit metal-oxides and dielectric films.\nOur 48″ diameter coating chamber and load lock have the capability to coat substrate sizes ranging from a single sheet of glass 32″ x 84″ to small part sizes down to 1″ x 1″.\nChrome Mirrors – serving the industrial equipment and specialty automotive industry\nProtected Silver – highly reflective coating for lighting and solar collection\nAluminum – high reflective coating for parabolic reflectors (flashlights, flood & spot) and automotive lighting\nNeutral density filters of nickel alloys or chrome for high-quality solar viewing and photography\nCustom two-way mirrors/beamsplitters for specialty electronics and security applications coated to customer reflectance/transmittance specifications\nAluminum or chrome coatings for metallized appearance on plastic or glass\nCustom personalized mirrors\nCoating materials include:\nMetals – Chromium, Silver, Aluminum, Titanium, Nickel, Copper, Inconel & many others\nOxides – Silicon Dioxide SiO2, Titanium Dioxide TiO2 and others","domain":"optical_engineering"}
{"url":"http://mary854elisa.xtgem.com/__xt_blog/__xtblog_entry/__xtblog_entry/33086119-the-following-sources-will-certainly-offer-you-an-introduction-of-the-lasik-surgical-procedure-and-also-astigmatism?__xtblog_block_id=1&__xtblog_tag=Modern+Vision+Correction&__xtblog_blog_page=5","date":"2024-03-04T04:14:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00408.warc.gz","language_score":0.9417946338653564,"token_count":776,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__192713805","lang":"en","text":"The Following Sources Will Certainly Offer You An Introduction Of The LASIK Surgical Procedure And Also Astigmatism\nContent author-Mayer McCormick\nLASIK surgery completely alters the shape of your eye's cornea. This enables light to be concentrated appropriately on your retina, leading to clear vision.\nThe procedure includes developing a slim flap of tissue in the cornea with an excimer laser. This flap is after that lifted as well as folded back.\nLASIK surgical treatment is a surgery that can be pricey. Fortunately, there are many options to help cover the expense of the surgical treatment.\nThe general expense of LASIK relies on numerous elements, consisting of the kind of laser that is made use of to reshape your cornea. Additionally, the level of experience and innovation that is supplied will certainly affect the final rate.\nMany lasik doctors charge one price for all vision correction treatments, with a tiny percentage based on the strength of your eye prescription. Some facilities may supply a reduced \"introductory\" rate for patients with weaker prescriptions, as well as a higher rate for those with stronger ones.\nLASIK With Astigmatism\nAstigmatism is a refractive error like nearsightedness (near-sightedness) and also hyperopia (far-sightedness). It is brought on by an irregular curve of the cornea, the clear, dome-shaped tissue at the front of your eye.\nHaving a qualified LASIK cosmetic surgeon is important to obtain the most effective results. see it here should have comprehensive experience and also wavefront modern technology, which assists to ensure your eyes are shaped appropriately during the surgical treatment.\nLaser-assisted in situ keratomileusis, famously called LASIK, is a safe and reliable surgery to correct nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.\nIn these situations, a second LASIK procedure called LASIK improvement can help. Enhancement is an outpatient surgical procedure that is very similar to the initial LASIK treatment.\nIn this second LASIK improvement, your eye doctor will lift your corneal flap, which they created throughout your preliminary LASIK surgical procedure. They will certainly make small reshapings underneath it, as needed. This is a quick, painless procedure.\nLASIK For Poor Vision\nLASIK is a prominent vision correction surgical treatment that utilizes innovative laser innovation to reshape the cornea, the clear front part of your eye. It is a procedure that can correct nearsightedness (nearsightedness), farsightedness (hyperopia), as well as astigmatism.\nThroughout the LASIK treatment, an anesthetic is applied to your eyes as well as the specialist makes a flap in the outer layer of your cornea with a blade or laser.\nAfter the flap is raised back, your specialist uses an amazing beam of laser light to reshape the cornea and also correct your refractive error. You may notice some blurry vision instantly after LASIK, but it usually improves as your cornea heals.\nFarsightedness (hyperopia) is a vision trouble that includes light not being properly focused on the retina. This triggers objects distant to appear clear, while those closer to you look fuzzy.\nPeople that have hyperopia can obtain LASIK eye surgery to correct their vision. Unlike various other types of refractive mistake, LASIK doesn't change the size of your eye; it merely improves the cornea to refract light better.\nIn spite of advancements in LASIK innovation, there are still some points that can be bothersome after laser eye surgery. These consist of completely dry eyes, which prevail throughout the healing stage of the treatment.","domain":"optical_engineering"}
{"url":"http://www.vaporia.com/astro/start/spica.html","date":"2021-09-22T20:54:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057388.12/warc/CC-MAIN-20210922193630-20210922223630-00368.warc.gz","language_score":0.6530176997184753,"token_count":113,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__214781362","lang":"en","text":"(Space Infrared Telescope for Cosmology and Astrophysics)\n(plan for a future space IR telescope)\n(for Space Infrared Telescope for Cosmology and Astrophysics)\nis a proposal in development by\nJapan (Japan Aerospace Exploration Agency) and Europe (European Space Agency), aiming at a launch in\nthe 2030 time frame.\nIt aims for a 2.5 m diameter telescope in an L2 orbit,\naiming for high sensitivity by cooling the mirror below 8 K.\n| || |\nReferenced by page:","domain":"optical_engineering"}
{"url":"https://covap.com/1470","date":"2024-03-05T13:58:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707948235171.95/warc/CC-MAIN-20240305124045-20240305154045-00347.warc.gz","language_score":0.920403003692627,"token_count":168,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__60517688","lang":"en","text":"Circular convex mirrors are made of acrylic and are shatterproof. They are fully framed and have a hardboard backing.A metal mounting plate is riveted to the hardboard backing and holds a threaded adjustable swivel stud. By setting the angle of the stud, the mirror may be aimed at any viewing position desired. All mounting brackets and hardware are included with each mirror.\nAvailable in diameters of 13\" to 36\".\n****HOW TO KNOW WHAT SIZE TO ORDER****\nAs a guide to ordering, many customers use a rule of thumb formula of 1 inch of mirror diameter for each foot of viewing distance desired. Keeping in mind that the larger the mirror, the more detailed is the reflected view. Therefore, a mirror with a 13\" diameter is used for viewing a distance of up to 13 feet, etc.","domain":"optical_engineering"}
{"url":"https://evgmtnsports.com/products/niterider-pro-3600-race-free-shipping","date":"2017-05-23T09:01:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607593.1/warc/CC-MAIN-20170523083809-20170523103809-00189.warc.gz","language_score":0.874298632144928,"token_count":95,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__209977914","lang":"en","text":"The Pro 3600 DIY LED Remote is one of the brightest bike lights ever constructed, producing an amazing 3600 lumens! The Pro 3600 utilizes six of the highest performing Cree LEDs available today to achieve this amazing light output. The Pro 3600 is the only bike light available that allows complete customization through our unique DIY Software. This allows the rider to tailor fit their light to the ride. The Pro 3600 is one of the most technologically advanced bike lights ever created.","domain":"optical_engineering"}
{"url":"http://geopolicraticus.tumblr.com/post/32374734026/hubble-goes-to-the-extreme-to-assemble-farthest-ever","date":"2013-05-24T21:11:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705069221/warc/CC-MAIN-20130516115109-00025-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9643653631210327,"token_count":194,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__162411280","lang":"en","text":"26th September 2012\nLink with 2 notes\nYou may have heard of the Hubble Deep Field (HDF) image and possibly also the Hubble Ultra-Deep Field (HUDF), which were long exposures of the Hubble space telescope’s camera on a very small portion of the sky, allowing the telescope to capture the very faint light of distant galaxies all-but-invisible to telescopes on the ground.\nThe HUDF has been called, “the most important image you will ever see.” The points of light that fill the HUDF image are not individual stars, but rather individual galaxies, which ought to stun the viewer into awed silence. Well, now NASA has produced another even longer exposure, which means an even deeper view into the cosmos.\nThe image above is a small portion that I copied out of NASA’s large 13 MB image, which you can see in its full size at the link above.","domain":"optical_engineering"}
{"url":"https://www.lampshadeailisi.com/products/flush-mount-garage-warehouse-gas-station-corridor-canopy-led-light/","date":"2023-03-29T02:50:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948932.75/warc/CC-MAIN-20230329023546-20230329053546-00325.warc.gz","language_score":0.670504629611969,"token_count":1196,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__135573819","lang":"en","text":"Canopy LED light Specifications:\n|Product description: 130Lm/W 120W 100W 75W 60W 45W LED canopy light|\n|LED Type||Lumileds / Refond SMD3030|\n|CCT(K)||3000K / 4000K / 5000K / 5700K / 6500K|\n|Power Supply||Meanwell / Sosen UL TUV CE Driver|\n|Lifespan (Hrs)||> 50,000Hours|\n|Power Consumption(W)||120W/100W/75W/60W/45W ±2W|\n120° anti-glare lens\n|Replacement||Metal Halide / HPS / HID / Halogen lamps|\n|Materials||Die casting Aluminum housing + PC lens|\n|Outlet cable||3 cores cable|\n|Installations||Recessed,Amercia ceiling,surfacce mounting|\n|Certificate||CE RoHS 5 years warranty|\nGOLON LED canopy light Product features:\nFull die casting aluminum housing, simply style, saving freight cost & easier installation;\nSuper bright: 130Lm/W high lumens efficiency; the best energy saving;\nWith Lumileds 3030 LED, Ra80;\noffer 5 years warranty, remarkable performance, top quality;\n2 intallation ways: Flush Surface ceiling mounting(HC mount) +Pendent mounting\nGOLON LED canopy light installations:\nGOLON LED canopy light sistributions & dimensions:\nGOLON Gas station LED canopy light applications & package:\nBrand new factory High efficiency 130Lm/W premium list explosion proof LED gas station light\nGOLON X series LED canopy light Items:\n|Model||Power||Lumens||Replacement||Lamp size||N.W(Kg)||G.W (Kg)||CTN size(cm)|\nGOLON LED canopy light productions\nCeiling surface flush mount 75W 60W 45W LED Canopy Light\nGOLON LED canopy light Applications:\ngas petrol station parking lot warehouse factory garage corridor\nMore Golon LED canopy lights:\nChina LED light manufacture-- GOLON\nExperienced & leading LED lights manufacturer since 2010\nManufacturer | Engineering | Ligthing solutions\nFactory fair price, fast delivery\nDialux light study\nGolonlite is a technology oriented enperprise in Shenzhen, integrating the research, development, design and production of industrial / Commercial LED light fixtures. . We have our own brand Golonlite registered in Shenzhen. With 9 years experirnece of production, engineering and world trades, we understand the importance of price, quality and design,so we do our own procutions, engineerings and reseach into full consideration. Our main prouduct lines include LED flood lights, LED high bay lights, LED canopy lights, LED street lights, high mast LED stadium light, solar LED street lights, tennis court lighting solutions,exterior led spotlight, LED PL lamp bulbs.\nWe are well-known in the LED industry with our advanced technology, scientific management, excellent quality and the first-class services.\n1. Any inquiries, will be replied in 24hrs.\n2. All your inquiries will be well explained by our experienced staff.\n3. All after sale problems will be deal with in 24hrs.\n4. OEM, ODM welcomed.\n5. Distributorship is available for your unique design and some our current models.\n6. We will keep secret for customer sale area,design ideas and all other private information.\n7. Offer 5 years warranty.\n8. Lighting design for free --- Provide IES file, Dialux lighting design & solution.\nGolon Manufacturing Co. Ltd.\ngolon2010.en.made-in-china.com golon2010.en.made-in-china.com golon2010.en.made-in-china.com\nPhone: +86 13689568212\nUnit price is negotiable, any need of canopy LED light 150W 100W option. Just contact with us, will reply in 24hrs.","domain":"optical_engineering"}
{"url":"http://reinervogel.net/Filter/Filter_e.html","date":"2024-04-14T18:53:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.19/warc/CC-MAIN-20240414161724-20240414191724-00721.warc.gz","language_score":0.922667920589447,"token_count":3034,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__188445227","lang":"en","text":"filter transmission spectra\nIntroduction Links spectra: OIII UHC H-beta other\nProperties of interference filters\nThe spectral properties of filters are often displayed in a transmission spectrum. In such a spectrum, the percentage of the light that is transmitted by the filter is plotted vs. the wavelength.\nNebula filter let light pass only within a narrow pass band. This pass band is characterized by its central wavelength, the peak transmission within the pass band, the width of the pass band, characterized by the full width at half maximum (fwhm), and the steepness of the edges of the pass band (the steeper, the better). The ultimate goal for a nebula filter with given bandwidth is a filter with a peak transmission close to 100%, complete blocking outside the pass band, and a quasi-rectangular shape of the pass band.\nIn contrast to colored glass filters, in which the blocked light is absorbed, the filter action of interference filters is based on constructive and destructive interference on a series of alternating thin dielectric layers. The blocked light is not absorbed, but reflected by the filter.\nAn excellent introduction to design and theory of interference filters is here.\nSpectral properties of \"ideal\" nebula filters\nIdeal nebula filters should have high transmission in the range of the specified emission lines and complete blocking in the remaining spectral range.\nWithin the pass band, the transmission of the filters should therefore be well above 90%. The spectral width of the filter should be as large as necessary not to cut the emission lines, but not larger to avoid transmission of unwanted continuum light. This is best achieved when the edges of the pass band are as steep as possible. In order to be compatible also with fast optics, the pass band should have some buffer at the red side of the pass band to allow for a slight shift of the pass band (see below). Outside the pass band, the filter should block into the red and blue range as far as possible, at least as far that the range of sensitive scotopic vision between around 420 nm and 600 nm is covered.\nWhat are the important emission lines of HII regions and Planetary Nebulae? For visual observing, these are only a few lines: the OIII emission lines at 501 nm and 496 nm (with the 496 nm line having one third of the intensity of the other line) and the H-beta emission line at 486 nm. The H-alpha emission line at 656 nm is not relevant for visual Deep Sky observing (see here).\nThe ideal OIII filter should be broad enough to transmit the two OIII emission lines at 496 and 501 nm (green) with sufficiently high percentage. The filter shown above (Lumicon) has a transmission of above 95% on both OIII lines and a half width (fwhm) of only 12 nm. This is about the minimal band width that allows the two lines to be transmitted without significant loss.\nThe OIII filter shown above (Baader) with a bandwidth of only 9 nm is narrower than the Lumicon and should therefore be better in blocking unwanted continuum light. This filter has, however, a transmission of only 86% at the OIII emission line at 501 nm and of only 21% at the (fainter) OIII emission line at 496 nm. It therefore severely cuts transmission of the specified OIII lines. Nevertheless, this filter can do a good job on bright OIII objects, such as for instance the veil nebula or on bright planetary nebula, or under heavy light pollution. Under good conditions, however, the detection of faint OIII objects is noticeably hampered as compared with the Lumicon filter.\nAs an H-beta filter has to transmit only a single emission line at 486 nm, the band width can be smaller than with an OIII filter. The filter shown above (Lumicon) has a transmission of almost 96% on the H-beta line with a band width of only 9 nm.\nUHC filters transmit both the OIII and the H-beta lines and are therefore necessarily broader. The filter shown above (Astronomik) has transmission values of 92%, 95%, and 96% for the H-beta and the two OIII emission lines and a half width of 33 nm. As evident from the transmission spectrum, the band width of the filter could as well be 5 to 6 nm smaller without affecting transmission of the tree emission lines. This was considered with the newer series of UHC filters by Astronomik, which have a bandwidth of only 28 nm with transmission values on the emission lines similar to the filter shown above. The newer series of UHC filters by Lumicon are even slightly better with a bandwidth of 24 nm and transmission values above 95% on the three emission lines.\nInfluence of \"leaks\" on filter performance\nWhile filters intended for photography should be blocked over a wide spectral range, such a wide blocking is not necessary for filters intended for visual use, as long as peak transmission and pass band width are optimal. The graph below shows the transmission spectrum of a Lumicon OIII filter (white), that has additional \"leaks\" in the range below 430nm. The blue line shows the relative spectral sensitivity of the dark-adapted eye. The red area is the transmission of the filter weighted with the spectral sensitivity of the eye. A comparison of the relative areas shows quite clearly that such \"leaks\" outside regions of sensitivity of the eye are marginal and that instead the optimal (i.e. smallest possible while maintaining full transmission on the lines) width of the pass band is the decisive factor for filter performance.\nThe lower graph shows two different UHC filters that have comparable transmission of the relevant H-beta and OIII lines, but different widths of the pass bands of 27 and 58 nm, respectively. Both filters transmit therefore equal amounts of the \"desired\" light (and have hence a similar \"signal\"), yet the broader filter transmits about twice the amount of \"undesired\" light (corresponding to twice the \"noise\". The \"signal-to-noise ratio\" of the broader filter is therefore only about half of that of the narrower filter.\nIs a red pass band advantageous for a UHC filter?\nA few years ago, I would have answered clearly that this does not matter at all, unless you are going into photography.\nIn the meantime, I am no longer a 100% sure about this. Many of the old and faint PNe emit a significant amount of their light in the NII lines at 654.8 and 658.4nm (see, for instance here), which are immediately adjacent to the H-alpha line at 656.3nm. The H-alpha line is accompanied by the H-beta line, which has only one third of its strength, but is placed in the visually better accessible blue spectral range. The NII lines do not have such counterparts in the blue range.\nFor extremely faint objects, that emit mainly in the NII lines, and under perfect observing conditions, a UHC filter with optimal pass band in the red spectral line for the NII and H-alpha lines could be the filter of choice. It does not matter much, if the pass band is open toward the red end, as the spectral sensitivity of our photoreceptor cells may serve as a \"natural\" cut-off.\nInfluence of non-normal incidence on the position of the pass band\nThe nominal position of the pass band of an interference filter is usually given for normal incidence of light. If the filter is used between mirror/objective and eyepiece (as usual), we deal with *nearly* normal incidence of the light on the filter and the pass band of the filter is not changed. In some situations, however, we have to deal with deviations from normal incidence, e.g. when\nthe filter is tilted by a certain angle\na filter is used between eyepiece and eye (e.g. with binoculars or for filter blinking) as the viewing angle behind the eyepiece is much wider than the light cone before the eyepiece\nwe use very fast optics (see below)\nUnder such conditions, the pass band changes:\nit becomes blue-shifted, i.e. shifted to shorter wavelength\nits peak transmission decreases slightly\nthe shape of the pass band changes and the bandwidth increases slightly\nFor deviations from normal incidence, θ, smaller than 25°, the shifted position of the pass band, λθ, can be calculated by\nwhere λ0 is the peak position at normal incidence and neff is the effective refractive index of the filter. Typically, interference filters have neff of 1.45 or 2.0, depending on the dielectric material being used, which ultimately depends on the precise application and the required specifications. Filters with wider pass bands (such as typical UHC or broadband filters) are usually based on high-index spacers ( neff ≈ 2.0). Filters with extremely narrow pass bands and steep sides require low-index spacers ( neff ≈ 1.45). As a trade-off, they have a somewhat more pronounced wavelength shift than the former.\nHere is an example of a narrow band interference filter with low-index spacers (Baader OIII), measured under different angles of incidence, θ.\nThe blue-shift of the peak, the decrease of the peak transmission, and the change of the pass band profile are all discernible in this graph.\nInfluence of fast optics on the pass band\nSo what's the point about fast optics and interference filters? Slow optics have a steeper light cone than fast optics, such that the light passes the filter closer to normal. For fast optics, the mean angle of incidence θeff can be calculated for the (mean) 71%-zone of the objective/mirror (f-number of an f/4 optic is 4)\ntan (θeff) = 0.71 d / 2f = 0.71/(2*f-number)\nFor an f/4 telescope, this yields θeff = 5.1° and a shift of the pass band (at λ0 = 500nm) of approximately 1 nm, in agreement with the measurements shown above. For the edge rays, this shift increases to about 2 nm.\nTherefore, with an f/4 telescope, the pass band shift is small, even for a narrow low-index filter, as even for fast telescope optics, the light cone is still relatively steep. Only for extremely narrow filters or for filters, where the specified emission line is close to the red edge of the filter, this pass band shift may affect performance. The situation is different, if a filter is used between eyepiece and the eye. Here the viewing angle is much larger and hence the pass bands shifts considerably off-axis. This is visible as a color change (towards blue in the most simple case) towards the edge of the field of view.\nAging and edge deterioration of filters\nOlder filters may age and undergo slow deterioration starting at the edge. As far as I know, this has been observed with some (not all) of the older laminated filters sold by Lumicon, but in at least one case also with newer series (my own Lumicon H-beta filter, left filter in the lower image). Presumably, this is related to moisture and inadequate storage of filters, as there are filter from before 1995, which are not affected.\nEdge deterioration of two interference filters (left H-beta, right OIII)\nIn the photospectrometer, transmission spectra taken from the center of the filter look normal, while there is a shift of the passband to the red and a reduced transmission towards the edge.\nTransmission spectra of the OIII filter in the upper right image\nThis spectral behavior could be due to a slight swelling of the dielectric layers of the filter during the aging process. As long as the aging process does not affect the entire filter, such filters may still perform reasonably well in the telescope. With the OIII filter in the right image, we successfully observed Abell 31 without severe limitations.\nFilter transmission spectra\nBesides optical quality, the transmission characteristics determine the usefulness of nebula filters. Therefore, transmission spectra are very helpful in deciding which filter to buy.\nThe spectra below are filter transmission spectra of filters of my own and of others. All spectra were obtained with a Hewlett-Packard G1103A (8453) diode array spectrophotometer.\nThe transmission values are indicated for the true position of the spectra line (valid for normal incidence). For the very narrow pass band filters, the values in brackets indicate the transmission at a position shifted by 1nm to longer wavelength, corresponding to the shift induced by the mean incidence angle of f/4 optics. The full width at half mean of the pass band is also indicated (as HWB, Halbwertsbreite).\nThe Lumicon filters are distinguished between the present series and the old laminated series. Astronomik and ICS are from the same manufacturer. They have generally broader transmission bands and only the most recent series have optimized narrower band widths.\nLinks to general pages on interference filters\nLinks to other web pages with transmission spectra\nAndré Knöfel www.astroamateur.de most extensive collection of transmission spectra\nThomas Klotzbücher www.blackskynet.de collection of transmission spectra\nChristian Buil www.astrosurf.com/buil collection of transmission spectra\nOmega Filters/DGM/ ebay store\nIntroduction Links spectra: OIII UHC H-beta other","domain":"optical_engineering"}
{"url":"https://canyonvieweyes.com/diagnostic-equipment/","date":"2023-03-31T22:00:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949689.58/warc/CC-MAIN-20230331210803-20230401000803-00042.warc.gz","language_score":0.9515741467475891,"token_count":594,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__242377197","lang":"en","text":"At CanyonView Family Eye Care, we take pride in using the latest technology to treat your every need. Please have a look at some of the instruments we use in our office to detect and treat eye diseases and conditions.\nTopcon’s DRI OCT Triton\nWe use this to detect glaucoma, macular degeneration, retinal bleeding or swelling as well as any other small medical concern that can lead to a decrease in vision.\nOptos Optomap Daytona\nWe use this to detect problems that affect the retina in areas that are typically difficult to see. This instrument also gives us a unique view into the anatomy of the eye as well as the function of the eye. Oftentimes a normal looking retina may have had an injury which decreased function in the retina and this will readily detect such an occurrence.\nThe technology used in this instrument has been used for a number of years to increase collagen and elastin in the skin in order to reduce fine lines and wrinkles. Along the way they must have discovered that dry eye symptoms were improving for those clients. We now use this technology to warm the area around the eye which acts as a fast working hot pack. It allows us to clean out stagnant Meibomian Glands on the eyelids with very little interaction with your eyelids. It has proven to be quite effective for this treatment. But the instrument has a fortunate side effect to also reduce fine lines and wrinkles in the area of treatment.\nCynosure ICON IPL with Max G\nWe use this instrument to also address fine lines and wrinkles of the face while also allowing better heating of the lids and expression of the stagnant Meibomian Glands of the eyelids. The Max-G attachment allows us to also reduce fine surface blood vessels associated with rosacea (especially ocular rosacea) which can have a positive impact on the stagnant Meibomian Glands as well. Rosacea causes these glands to become plugged and function poorly and this instrument helps to clear those vessels which helps to clear those glands\nOculus Keratograph 5M\nWe use this instrument for detecting nearly anything wrong with the front of the eye, including the biggest ocular surface problem—dry eye. This instrument has a number of tests which allow a detailed analysis of the tear film of the eye and allows us to better understand our positive impact on the ocular surfaces during our treatments.\nWe use this instrument in the detection and treatment of glaucoma as well as other medical conditions that can affect peripheral vision.\nAre you looking for\nMedical eye care ?\nWe offer a variety of services for your family at CanyonView Family Eye Care. From medical eye care, to eye glasses and contacts, as well as aesthetic services and dry eye treatments, we have you covered.","domain":"optical_engineering"}
{"url":"https://www.drchia.com/homeiop","date":"2023-11-30T17:32:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100229.44/warc/CC-MAIN-20231130161920-20231130191920-00501.warc.gz","language_score":0.8657612800598145,"token_count":334,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__3799824","lang":"en","text":"Home Eye Pressure Monitoring\niCare HOME tonometer for diurnal IOP Self-Monitoring\niCare HOME – How to measure the eye pressure with the iCare HOME tonometer\niCare rebound tonometer measuring close up\niCare HOME user experience\nIrvine Eye Physicians and Surgeons Inc can now measure your intraocular pressure at home!\nThe iCare HOME Tonometer is the first device available to patients for measuring intraocular pressure (IOP) at home. iCare HOME provides an extensive an accurate view of the patient's diurnal or daytime IOPs.\nPatients can measure their own IOP during the day. Measurement results from the portable iCare HOME device are uploaded into a secure cloud platform and are accessible to Dr. Chia and the patient at anytime. The iCare Home tonometer does not require the use of anesthetic drops or air to measure the IOP.\nThe ease of use, accuracy and reliability of the iCare HOME tonometer provides rich individual patient IOP trends and insights. This device allows measurements throughout the day and night providing a comprehensive picture of IOP trends that might reveal spikes and/or variations not possible with measurements only taken during clinic office hours. This rich information can then be used to customize treatment plans and to measure the effect of certain interventions.\nEase of use\nReliable and accurate\nAutomatic eye recognition\nIntelligent positioning assistant\nSecure data transfer to our iCare CLINIC software at Irvine Eye Physicians and Surgeons Inc.\nPlease review the iCare HOME Instruction video\nWe hope this diagnostic tool will help to preserve sight and provide peace of mind!","domain":"optical_engineering"}
{"url":"http://www.healthquestnaples.com/services/diagnostics/foot-levelers-orthotics.html","date":"2018-10-18T18:28:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511897.56/warc/CC-MAIN-20181018173140-20181018194640-00475.warc.gz","language_score":0.898267388343811,"token_count":125,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__129747512","lang":"en","text":"3D BodyView® Imaging Unit\nBased on cutting-edge technology, Foot Levelers highly precise and accurate 3D imaging unit is designed with the ultimate goal of creating the perfect orthotic—which in turn helps bring about peak performance and health. Using Laser Triangulation technology which is one of the most accurate scanning techniques available. Laser Triangulation uses a beam of light to take a 3-dimensional map of your foot.\n- Identifies asymmetries in the feet with Arch Height Mapping\n- Illustrates how the feet impact the entire Kinetic Chain\n- Generates foot assessments in under 60 seconds","domain":"optical_engineering"}
{"url":"https://action.jo/en/product/3125/flash-video-light-n-520","date":"2023-02-03T22:51:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500076.87/warc/CC-MAIN-20230203221113-20230204011113-00036.warc.gz","language_score":0.7708768844604492,"token_count":187,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__241301911","lang":"en","text":"Flash Video Light N-520\n0/5 Reviews: 0\n- Power: 37W(Max)\n- Lamps beads: 520pcs\n- Luminous flux: 4100LM(Max)\n- Color temperature: 3100-5500K 5. Light angle: 120 degree 6. Color rendering: >=95\n- This is camcorder professional LED camera light.\n- Built-in 416 pieces high quality LED beads.\n- A variety of dimming, more professional to use.\n- Small size, light weight, easy to carry, easy to assemble.\n- Highly efficient, power-saving, low energy consumption.\n- Rotating the switch can adjust the brightness without filter plates, suitable for a variety of photography atmosphere.\nThere is no reviews yet. Be the first one to add a review.","domain":"optical_engineering"}
{"url":"https://resourcekt.co.uk/ouster-will-buy-sense-photonics-and-lead-to-more-automotive-deals/","date":"2021-10-17T19:35:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585181.6/warc/CC-MAIN-20211017175237-20211017205237-00501.warc.gz","language_score":0.9446068406105042,"token_count":467,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__27281601","lang":"en","text":"By Joseph Blanc\nDETROIT (Reuters) – Lidar developer Ouster Inc said on Tuesday it had agreed to buy solid-state lidar startup Sense Photonics under a stock deal and would create a new automotive division led by Sense CEO Shauna McIntyre.\nOuster said he would buy out Sense, a private company, for 9.5 million shares of Oster, which were worth around $ 68 million at Monday’s close.\nThe acquisition comes as investors dampened their enthusiasm for lidar startups. Automakers and autonomous driving companies delayed large-volume deployment of the sensors to the middle of this decade, and Tesla Inc chief executive Elon Musk said Tesla could do without the technology.\nThe Ouster share price is down 47% since the start of the year. Rival Luminar Technologies has fallen 57% since January, while Velodyne Lidar Inc has plunged 75% for the year.\nLidar sensors create a detailed image of a vehicle’s surroundings using laser light. Aside from Tesla, most automakers and autonomous vehicle developers use lidar as part of the sensor arrays of their automated driving systems.\nOster CEO Angus Pacala told Reuters that the acquisition of Sense Photonics would accelerate Oster’s efforts to land high-volume contracts with automakers by a year. Sense brings semiconductor lidar technology, engineers and contract prospects to supply sensors to five automakers by 2025-2026, Pacala said.\n“We can provide a five lidar system for $ 1,000 that circles the vehicle, versus a single prospective lidar that can cost $ 1,000 to $ 2,000,” Pacala said.\nOuster will create an automotive division, stepping up efforts to secure contracts to supply lidars for all-terrain vehicles and industrial equipment. About 80 Sense employees are expected to join Ouster, and some Sense executives have agreed to five-year retention agreements, Ouster said.\nToday’s lidar sensors are too expensive for all but the most expensive consumer vehicles. Expel and its rivals are fighting to develop lower-cost digital and solid-state lidars, and are targeting models that will launch in about four years.\n(Reporting by Joe White; Editing by Dan Grebler)","domain":"optical_engineering"}
{"url":"http://reed2466wogblog.canariblogs.com/2-factors-individuals-do-not-really-understand-in-connection-with-lasik-eye-surgical-procedures-5943897","date":"2018-11-17T11:03:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743353.54/warc/CC-MAIN-20181117102757-20181117124757-00155.warc.gz","language_score":0.954640805721283,"token_count":888,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__161892749","lang":"en","text":"2 Factors Individuals Do Not Really Understand In Connection With LASIK Eye Surgical ProceduresThe eye can be examined with relative ease as to both its function and its structure. A practical assessment includes the ability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye may be tested in several methods. The patient might be asked to recognize illuminated letter or objects of varying sizes on exactly what is called the Snellen chart.\nConversely, the evaluation of the structural part of the eye may be made in a number of methods. Tension within the eyeball is determined by a \"tonometer.\" In particular diseases, especially in glaucoma, the tension in the eyeball is increased considerably.\nIt ought to be well remembered that a client with an eye issue might have other problems. Frequently other physical conditions are main and affect the eye as a repercussion. The appearance of the eye can alert the patient and the doctor to troubles in some disturbances of other parts of the body even prior to other symptoms present themselves.\nAs a result, one's reliance on sight is emphasized when one deals with a possible or short-term permanent loss of this crucial sense. When corrective procedures are looked for, particular kinds of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are bothered with the truth that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to motivate decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgery is another form of vision correction. The only distinction is that with this type of surgical treatment, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people must understand. Probably, the main reason that this kind of eye surgical treatment has ended up being well accepted is because many of its cases had achieved success.\nIn spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgery includes the operation of the retina, which is one of the most delicate portions of the eye, the majority of people state that the operation can be very risky.\nSimply puts, a easy error could almost cause an individual's life time blindness. It is important to consider numerous elements prior to choosing whether LASIK eye surgical treatment is the best restorative step one has to undergo.\n2. It is not a ideal procedure\nLASIK eye surgical treatment may fix your vision however it does not always mean that it can provide you a twenty-twenty. Even if statistical reports show that 70% of the clients might have 20/20 vision, this does not always imply they have perfect vision too.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always website link be the ideal eye surgical treatment the way many check out this site people see it\nOn the other hand, the examination of the structural part of the eye might be made in a number of methods. It needs to be well kept in mind that a client with an eye issue may have other issues. Frequently other physical conditions are primary and affect the eye as a consequence. The look of the eye can signal the doctor and the client to difficulties in some disruptions of other parts of the body even before other symptoms present themselves.\nLike its concrete counterpart, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://www.environmental-innovations.biz/turbidity/","date":"2013-05-26T05:38:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706631378/warc/CC-MAIN-20130516121711-00060-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9221152663230896,"token_count":255,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__175461087","lang":"en","text":"for the oil, chemical and sewage industries\nThe Innovation Farm\nNr Bishop's Stortford\nAll enquiries to:\n+44(0)1279 600 440\nOrder Fax Line\nFax: +44(0)1279 600 766\nTurbidity is the cloudiness or haziness of a fluid caused by individual particles and suspended solids in water that individually may are generally invisible to the naked eye but collectively form the haze.\nThe measurement of turbidity is a key test of water quality and its measure can be used as an early warning that something has entered the drainage system. Increased turbidity is often associated with heavy rain where soil / clay can be washed into the water, however it can be used to detect substances such as milk, suspended powders, mixtures, paints, etc that could be spilt and enter the drainage system.\nModern sensors are available to measure turbidity. Many of these look at the optical properties of the medium either looking for optical transmission or back scatter (reflection).\nBy deploying turbidity sensors up stream in a drainage system it is possible to close of the exit from a site using a DrainstopperTMor FlapstopperTM at the exit from the site.","domain":"optical_engineering"}
{"url":"https://www.spicatek.com/product/dhs","date":"2023-03-29T10:05:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948965.80/warc/CC-MAIN-20230329085436-20230329115436-00618.warc.gz","language_score":0.7446874976158142,"token_count":171,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__161067971","lang":"en","text":"Digital High Speed Recording\nCapture and record long time periods from high speed digital video cameras\n- Up to 9GB/s\n- Standalone ruggedized portable system up to 32 TB capacity\n- 4U rack mounted server system up to 64 TB capacity\n- Distributed multiple unit large area recording managed over a fiber network with centralized single screen administration.\n- Uncompressed recording\n- Packed real time data in 10, 12 and 14 bit video mode\n- Pre Mid and Post triggers\n- Circular buffers\n- Customizable to end user specifications.\n- Real Time image processing\n- Native or IRIG-B timecode\n- Automatic Exposure Control\n- Automatic White Balance\n- Optional tracking algorithms for 2D/3D/6DOF analysis","domain":"optical_engineering"}
{"url":"https://www.e-tec.cn/products/dip-and-rotary-switch/6-led-multicolor-tact-switch/led-multicolor-tact-switch-tht-version/led-multicolor-tact-switch-tht-right-angle/tact-switch-led-multicolor-rgb-tht-right-angle-version_-with-cap_Dessin.html?w=bs","date":"2023-11-30T14:12:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100227.61/warc/CC-MAIN-20231130130218-20231130160218-00521.warc.gz","language_score":0.8958565592765808,"token_count":142,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__98285804","lang":"en","text":"Tact Switch LED MultiColor (RGB) with Cap, THT Right Angle Version. This Led Tact Switch can be operated from above and from the side. The RGB LEDs can be controlled at will and thus almost all colors are available. The caps are available in black, silver and transparent as well as with different standard markings. Custom markings can also be implemented. You only need one switch for different colored applications. Suitable for a variety of applications such as Consumer / Gaming / Medical / Network / Automotive and Audio/Video.\nTLS-76-R/81-xxx/xxxSx/6SZ, Tact Switch LED MultiColor (RGB) THT Right Angle Version. With Cap","domain":"optical_engineering"}
{"url":"https://vectoresports.co.za/team/the-shadow-of-destiny/","date":"2019-02-20T05:12:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247494449.56/warc/CC-MAIN-20190220044622-20190220070622-00529.warc.gz","language_score":0.9238781332969666,"token_count":217,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__157247255","lang":"en","text":"The shadow is cast\nA shadow is a dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light.\nA shadow occupies a three-dimensional volume of space, but this is usually not visible until it projects onto a reflective surface. A light fog, mist, or dust cloud can reveal the 3D presence of volumetric patterns in light and shadow.\nFog shadows look odd to viewers who are not used to seeing shadows in three dimensions. A thin fog is just dense enough to be illuminated by the light that passes through the gaps in a structure or in a tree. As a result, the path of an object’s shadow through the fog becomes visible as a darkened volume. In a sense, these shadow lanes are the inverse of crepuscular rays caused by beams of light, but caused by the shadows of solid objects.","domain":"optical_engineering"}
{"url":"http://www.ines-solaire.org/anglais/DT1329815998/page/Background.html","date":"2013-06-19T11:33:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708711794/warc/CC-MAIN-20130516125151-00071-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8984711170196533,"token_count":290,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__92538081","lang":"en","text":"Crystalline silicon wafers solar cells dominate more than 90% of the total PV market share. Meanwhile, silicon must reinvent itself for both g/W and $/W reductions while maintaining high performance and reliability.\nTo meet this challenge, lower-cost feedstock materials are entering commercial production, including upgraded metallurgical route and modified Siemens. Quasi-mono ingot casting is moving to the picture. Kerfless methods for fabricating thin wafers promise to reduce the grams of silicon per peak watt by >2x. Novel methods for nucleating thin layers of silicon offer disruptive avenues with inherent cost and performance advantages.\nWhile multiple technology pathways exist to reach $1/Wp installed PV system costs using silicon, fundamental scientific and engineering challenges must be overcome. Because the solar cell efficiency is strongly affected by the quality of the crystalline silicon, the development of the silicon materials technology, from the feedstock to crystal growth and wafering, is extremely important. It is therefore essential to exchange scientific information among world-wide specialists in physics as well as materials science and technology for crystalline Si solar cells.\nTo facilitate this exchange of information, the 6th International Workshop on Science and Technology of Crystalline Si Solar Cells will be organized in France for the first time after Japan (1st), China (2nd), Norway (3rd), Taiwan (4th) and USA (5th).","domain":"optical_engineering"}
{"url":"https://publications.evolvingcities.org/proc-icec/article/view/30","date":"2023-12-04T19:40:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100534.18/warc/CC-MAIN-20231204182901-20231204212901-00555.warc.gz","language_score":0.8938168287277222,"token_count":256,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__174325002","lang":"en","text":"Real-time pixel-level fusion of colour and thermal (RGB-T) imagery via extrinsic optical alignment: Scope for automating building inspections\nKeywords:Building Inspection, Real-time Fault Detection, RGB-T Fusion\nBuilding inspections and energy surveys are performed to detect and diagnose building defects, however, existing inspection methods are highly labour intensive, time consuming, and not suitable for large-scale audits. This work presents a thermal-colour fusion technique using pre-capture optical alignment that eliminates the need for compute-intensive post-processing of data. The coinciding axes of dual cameras also prevent parallax errors, which helps expand its applications to near proximity or indoor thermal inspection as well. A prototype of this design was assembled and tested, which showed a pixel-level accurate alignment of thermal and colour camera imagery with minimal computation. The research and development in this paper provides scope and feasibility to automate building inspection techniques through drone-based low-powered embedded machine learning models and identify faults in real-time for large-scale surveys of building façades.\nHow to Cite\nCopyright (c) 2022 M. H. Shariq, B. R. Hughes\nThis work is licensed under a Creative Commons Attribution 4.0 International License.","domain":"optical_engineering"}
{"url":"http://www.viatechco.com/news/led-light-bulb-principle-14301960.html","date":"2019-01-24T03:24:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584445118.99/warc/CC-MAIN-20190124014810-20190124040810-00483.warc.gz","language_score":0.9114629626274109,"token_count":220,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__29040911","lang":"en","text":"Light Emitting diode bulbs are fundamentally different from conventional incandescent lamps in terms of both structure and luminescence principles. Diodes are commonly used components in electronic circuits and are made of semiconductor PN junctions, with electrode leads and tube shells. Diodes have PN junction two electrodes, so called diodes. The diode has unidirectional conductivity.\nThere are many kinds of diodes, common detection tube, rectifier tube, regulator, switch tube, damping diode, light-emitting tube, photoelectric tube and so on. LEDs are usually made from semiconductor materials such as gallium arsenide and gallium phosphide, which glow when passing forward currents, and the color of the glow depends on the material used, emitting red, yellow, green, and infrared rays. Light emitting diodes are generally transparent plastic package, pin long for the positive, pin short for the negative. Some light-emitting diodes have three pins that emit two colors of light depending on the voltage of the pins.","domain":"optical_engineering"}
{"url":"https://www.osmonddrake.co.uk/spectacle-lenses/","date":"2024-02-21T18:27:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473524.88/warc/CC-MAIN-20240221170215-20240221200215-00147.warc.gz","language_score":0.929583728313446,"token_count":1000,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__67164485","lang":"en","text":"Here at Osmond Drakes we strive to provide you with the best and most affordable options for your Spectacle lenses. We use both Hoya and Essilor as spectacle lens providers giving you the option to have any Spectacle lens you want.\nSPECTACLE LENS MATERIALS\nThere are now many specialised materials available for creating spectacle lenses, so we can advise on the best possible lenses for you. Modern materials available include…\n· Standard Plastic\n· Airwear, a polycarbonate lens material, suitable for those with an active lifestyle. Light, thin and virtually unbreakable. Ideal for rimless spectacle frames\n· Mid Index Plastic – thinner and lighter than the standard plastic\n· High Index Plastic – remarkably thinner and flatter than conventional lenses that are suitable for higher prescriptions\n· Very High Index Plastic – ideal for patients with strong prescriptions. It’s much thinner, flatter and lighter than standard high index lenses and reduces eye magnification considerably. So no matter how high your prescription you will look and feel much more natural\nSensity photochromic lenses were developed to react consistently to light, UV and temperature. They darken quickly when you step outdoors and fade back just as quickly to full clarity indoors. During these rapid transitions, total UV protection is maintained. So whether you are running errands on the high street, strolling in a shady park or relaxing on the beach,\nSensity photochromic lenses will adapt to every situation.\nSPECTACLE LENS COATINGS\nEveryone deserves the right to clear vision. Today, many spectacle wearers still haven’t tried anti-reflective lenses. Yet, once people give them a try they never go back to the visual discomfort of untreated versions. The discomfort can be caused by fingerprints, headlight glare on the road, eyestrain caused by computer screens and surface scatches.\nWe can offer a choice of coatings to overcome one or all 5 enemies of clear vision…\nYour glasses saved my life – I had so much neck strain in work with my old glasses using the computer it was awful .”– J WILLIAMS\nEverybody loses that bit of flexibility as they get older and that goes for the lenses inside our eyes as well as the rest of our bodies. This varies from person to person but for most people it becomes noticeable when they are in their forties.\nWHEN DO YOU NEED VARIFOCALS?\nSingle vision lenses (reading glasses) only correct the reading area so you may get blurred vision at every distance beyond, so reading glasses can be on and off as you switch between near and far. Bifocals give you focus at two distances; near and far, but with a blurred mid area and an unflattering line across the lens. Varifocal lenses have three main focal areas smoothly blended into one for natural vision at every distance.\nWHY BUY OUR VARIFOCALS?\nWe recommend the right Varifocal lens to fit your needs and work with you to make sure you get the best use out of them. If you have problems with your Varifocals we will help to ensure that they work right for you. We only use lens providers who have the latest lens technology to make sure that you have a quality Varifocal lens.\nEveryone is unique, and their eyes are no different. Which is why at Osmond Drake Opticians we offer Personalised, bespoke Varifocal lenses. So that your Varifocals are tailored exactly to your needs, we use cutting edge technology to take special measurements and our Dispensing opticians will talk you through all your options as well as helping you choose the right frame for you.\nHOYA VISION SIMULATOR\nNot sure if Varifocal lenses are the right purchase for you? We have a solution, you can sample what your vision will be like with Varifocals before you take the plunge and buy them. We can show you this using the Hoya Vision Simulator allowing you to make an informed decision when picking the right Varifocal lens for you. Give us a call now and make an appointment to try the vision simulator.\nHOYA ENROUTE LENSES\nDo you have trouble with glare from headlights when driving, or just want your vision to be a little bit sharper?EnRoute is the solution. Developed to meet all the visual demands of today’s motorists, EnRoute lenses for driving are equipped with a specially developed Glare Filter. This absorbs light in the blue spectrum, significantly reducing light scatter and distracting glare from the dashboard, streetlights and oncoming traffic. With the reflections gone, more light passes through your lenses, improving contrast and brightness. The result is more comfortable, relaxed vision even in stressful driving situations. Ask us in store to find out how you could benefit from these great lenses.","domain":"optical_engineering"}
{"url":"https://www.mccormickandgorman.co.uk/digital-freeform/","date":"2024-04-24T18:25:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819847.83/warc/CC-MAIN-20240424174709-20240424204709-00395.warc.gz","language_score":0.9484322667121887,"token_count":170,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__7668396","lang":"en","text":"The vast majority of varifocals work by setting optic power & astigmatism on interest points on the surface of a lens, with the setting through an algorithm known as B-splines. However, the lens surface is a continuous topography and points in between are solved through interpolation, which results in a big loss of control over the astigmatism and power in a very large area of the lens. Advances in lens design software and precision freeform equipment has provided us with new and exciting opportunities, enabling us to offer a wide range of high performance, state-of-the art-lenses. We do this by digitally modelling the optical lens surfaces with an infinite amount of control points, creating personalised ophthalmic lenses tailored to each patient. The instant result is significantly greater visual comfort and significantly wider fields of view.","domain":"optical_engineering"}
{"url":"http://m.pentaximaging.com/camera-lenses/smc_PENTAX_DA_14mm_F2.8_ED_IF","date":"2013-06-19T13:05:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708783242/warc/CC-MAIN-20130516125303-00030-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8456112742424011,"token_count":123,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__25322705","lang":"en","text":"Extra-low Dispersion (ED) glass offers superior sharpness with minimal chromatic aberration.\nThe PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation.\nThe focal length is equivalent to 21mm in the 35mm format.\nDeveloped specifically for PENTAX digital SLR cameras.\nWinner of the American Photo Editor’s Choice award (2005).\nInternal focus system to makes focusing smoother and faster.\nThe lens is treated with the acclaimed smc coating for maximum light transmission, sharp definition and high-contrast images.","domain":"optical_engineering"}
{"url":"https://www.mpnnow.com/news/20181230/service-notes","date":"2019-01-23T05:56:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583897417.81/warc/CC-MAIN-20190123044447-20190123070447-00335.warc.gz","language_score":0.8980957865715027,"token_count":117,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__87966985","lang":"en","text":"Canandaigua sailor training to fix fiber optics\nMachinist’s Mate 3rd Class Austin Mawdesley, of Canandaigua, is learning how to fix fiber optics in a Carrier-Advanced Reconfigurable Training System class aboard the USS Gerald R. Ford.\nC-ARTS is designed to provide an alternative to traditional training methods and supplement gaps in U.S. Navy training pipelines. Ford is the first carrier in the fleet outfitted with fiber optic technology.\nMawdesley is assigned to the ship’s nuclear reactor department.","domain":"optical_engineering"}
{"url":"https://blog.withsunglasses.co.uk/photochromic-lenses-practical-maximum-protection/","date":"2021-05-16T02:20:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991659.54/warc/CC-MAIN-20210516013713-20210516043713-00069.warc.gz","language_score":0.9474537372589111,"token_count":569,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__184010914","lang":"en","text":"Photochromic Lenses, Practical with Maximum Protection\nPhotochromic lenses are a technological innovation placed for all users that wear all types of glasses. The special feature of this type of lens is that they adapt (darken) to natural light. They are suitable for different types of environments and climates: sunny, cloudy, rainy. In addition, its coloration is also affected in terms of the temperature to which they are subjected. In this way, glasses with photochromic lenses can be used both outdoors and indoors, since they adapt to the light they receive. In addition, this type of innovation provides protection against UVA and UVB rays and against annoying and harmful reflections for our visual health.\nThe eyes are one of the most sensitive organs of the human body and protecting them is of vital importance. UV rays are invisible, but threaten the health of our cornea even when the sun does not shine in all its splendour. Photochromic lenses include a protection specifically designed for UV rays, adapting to all types of light and keeping our corneas safe. The main characteristic of the photochromic lens is that they avoid putting the eyes in danger, adapting their properties to the existing luminosity without obstructing the vision.\nAre not you tired of changing your glasses throughout the day? What moment in the afternoon is the right time to take off your sunglasses? The solution is found with photochromic lenses. Although this technology preserves its effectiveness for everyday wear or sports wear, it is more usual to find it implanted in everyday wear. This is because they for all types of climates and situations.\nAt Withsunglasses we have prepared a selection of glasses with photochromic lenses:\nGlasses with photochromic lenses\nRay Ban Round Metal\nThe classic Ray Ban Round Metal now also includes photochromic lenses. Its metal frame is solid and comfortable, making this model suitable for every day use. Their lenses are lightened or darkened in grey scale and are of high quality.\nThe Carrera Eclipse sunglasses are ideal for snow sports: they are comfortable, lightweight and give great protection from the reflections of snow and direct sunlight. Their photochromic lens is a key choice for protection against the sun’s rays.\nRay Ban Aviator Evolve\nThe Ray Ban Aviator does not want to be left behind and always invest in innovation and technology. For this, we have been provided with this renewed model, with gold frame and green lenses, which are darkened or lightened in this colour scale. They are a stylish choice that will provide you with visual health and comfort.\nWithsunglasses hope that the concept of photochromic lenses has been clarified for you. Now it’s up to you to choose the path of visual health and on sunglasses with photochromic lenses.","domain":"optical_engineering"}
{"url":"http://gmatg.com/index.php?a=index&m=Equipment&id=61","date":"2021-06-22T17:11:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488519183.85/warc/CC-MAIN-20210622155328-20210622185328-00227.warc.gz","language_score":0.8408114910125732,"token_count":1528,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__58584086","lang":"en","text":"金鉴智能体温筛查机英文版介绍(Intelligent Infrared Fever Screening Machine)发布时间：2020-05-23\nIntelligent Infrared Fever ScreeningMachine :\nThe Infrared Temperature measurement Machine of Big Data Body Temperature Monitoring, Face Recognition and Attendance Access Control\nAfter the successful development of amicro-infrared thermal imaging system (Please check the article: Equipmentintroduction and case sharing of GMATG micro-infrared thermal distributionsystem金鉴显微红外热分布测试系统设备介绍和案例分享), GMATG has newlydeveloped the intelligent fever screening system, which can be used insupermarkets, schools and other crowded places.（Pleaseclick to see the introduction of the device in Chinese:金鉴智能体温筛查机——大数据体温监控+人脸识别+考勤门禁的红外测温设备）。\nIntelligent infrared fever screeningmachine can screen body temperature rapidly. It is an infrared temperaturemeasuring device that integrates functions of big data body temperaturemonitoring, face recognition, attendance and access control. It has the advantagesof high-precision, fast temperature measurement, clear imaging and automaticalarm; and can be used for tracing people with abnormal temperature safely,accurately and rapidly.\nUnder the epidemic situation, Intelligentinfrared fever screening machine of GMATG can provide integrated functions oftemperature screening, attendance and access control. After the epidemic, itcan be used for attendance and access control.\nEquipment R & D Background\nPreviously, GMATG has developed amicroscopic infrared thermal imaging system successfully, which is designed formicroscopic thermal imaging and is used to observe the infrared heatdistribution of micrometer-level chips. Based on the research of microscopicinfrared thermal imaging system technology, GMATG successfully developed anintelligent fever screening system that integrates infrared thermal imaging andface recognition. This system can be applied to body temperature screening incrowded places such as supermarkets, schools and so on.\n▲A batch of Intelligent infrared feverscreening machine of GMATG have passedthe test and are out of the warehouse\nPrinciple of thermometry\nIn nature, all objects can radiateelectromagnetic waves as long as their temperature is above absolute zero (-273° C). Thermal imaging mainly collects light in the thermal infrared band(8μm-14μm) of objects to detect thermal radiation emitted. Thermal imagingconverts thermal radiation into gray values, obtain temperature measurementalgorithm model (temperature gray curve) by the calibration of blackbodyradiation source to establish the precise aationship between the gray level andthe temperature, and to realize the temperature measurement function. Infraredthermal image has the advantages of safety, no radiation and no harm to humanbody.\nIntelligent infrared fever screeningmachine of GMATG use the matrix thermopile sensor imported from Japan as thecore component of temperature measurement and combined with a unique human bodytemperature measurement algorithm to output body temperature. Besides, it useshigh-definition face recognition lens to integrate face recognition technology,voice interaction and thermal imaging technology, and use HD face recognitionlens to integrate face recognition technology, voice interaction and thermal imagingtechnology, to realize the function of identification, temperature measurementand body temperature monitoring of a large number of people quickly, helping tobuild the first line of defense for epidemic prevention and control in majorplace.\n1. Body temperature monitoring: Schools,residential areas, supermarkets, banks, enterprise and institutions, government agencies, stations, docks andother densely populated entrances and exits.\n2. Attendance and access control: Intelligentattendance and access control for factories, enterprise and institutions,government agencies, etc.\nFeatures and functions\n1.Intelligent automatic temperaturemeasurement, no need for labor, cost saving\nIntelligent infrared fever screening machineofGMATG use imported infrared temperature measurement sensor, RGB and living bodydynamic binocular high-definition camera, and use dynamic face detectiontechnology that based on video stream. It can automatically capture the bodytemperature, and self-service rapid temperature measurement reduces labor costsand improves efficiency.\n2.Non-contact temperature measurement,measure temperature accurately and rapidly.\nIt supports instantaneous continuoustemperature measurement, non-contact temperature measurement, which is saferand more hygienic during epidemic. It can measure the current temperature whenthe face is aligned with the screen face mask for 2~3 seconds (If there aresome outside factors that may affect the temperature measurement, measuretemperature continuously without changing posture).\n3.Recognize the mask intelligently andautomatic remind you to put on the mask\nIntelligent infrared fever screeningmachine of GMATG has the intelligently function of detecting the mask. Therewill a voice warning “please put on the mask” when detect people withoutwearing mask automatically, which improves the efficiency of check peoplewhether wears a mask or not.\n4.Voice and screen double alarm whenmeasuring abnormal temperature, abnormal temperature data can be tracking.\nIn response to the current corona virusepidemic, Intelligent infrared fever screening machine of GMATG defaults to37.3°C as the high temperature alarm value (which can be set to other valuesfreely). It will immediately prompt with sound and picture alarms whendetecting the fever people, which prevent the spread of epidemic in publicplaces effectively. The measure temperature personnel can be managed in groups,measure record can be stored in the background, and the abnormal temperaturefever people can be traced back.\n5.Real-name face recognition to realizeintelligent attendance and access control functions\nThe machine supports storage personnelinformation in the background, and realize the intelligent management ofpersonnel attendance by face recognition technology. At the same time, themaching support permission settings, automatic recognize strangers, to achieveintelligent personnel access management.\n6. Report measure temperature by voice, andthe system supports multiple languages\nMachine can report the current measuretemperature by voice. The system supports the multiple language, such as simplifiedChinese, traditional Chinese, English, Japanese, German, Italian, French, etc .\n7.Multi-device networking can be unifiedmanagement, long-term online temperature measurement\nMachine has a large storage capacity, whichcan record over 20,000 data in a single device, supports the unified managementof multiple devices, and supports long-term non-standby temperaturemeasurement. The temperature measurement data and attendance records willautomatically upload to the cloud platform/local server. The background datamonitors and measures the temperature in real time, and keeps the measurerecord, which is convenient for tracing data and exporting the report ofidentification of people, time, place, temperature and other data.\n8.Can adjust the panel angle to fit thedifferent person height\nPrecautions for use","domain":"optical_engineering"}
{"url":"http://www.museumswellington.org.nz/product-category/astronomy/","date":"2018-05-21T18:32:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864466.23/warc/CC-MAIN-20180521181133-20180521201133-00083.warc.gz","language_score":0.846523106098175,"token_count":555,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__100425302","lang":"en","text":"Carson Red Planet Telescope RP-300 The Red Planet Telescope RP-300, is a Newtonian Reflector telescope. It’s large 114mm diameter reflecting mirror captures plenty of light for crisp, bright images and startling detail. The RP-300 features a high-quality, heavy duty aluminum tripod and a sturdy equatorial mount to counteract shaking and movements. It features setting circles […]\nPlanisphere Whether you’re at the bach, the beach, or out in the bush, navigate your way through the southern skies using your very own planisphere! Perfect for use between 30° and 60° South, simply rotate the inner disk to line up the date and time to reveal the skies overhead in the viewing window! Made out […]\nFeaturing the southern hemisphere of Johannes Hevelius’ Firmamentum Sobiescianum, this cloth is specially designed to care for coated lenses and delicate devices, and removes smudges and fingerprints easily.\nStar Globe This Star Globe is an adjustable and universal desktop map of the night sky between the hours 7pm and 5am. The globe shows the main constellations as they appear in the sky from the Earth’s vantage point. This is in contrast to other globes that show an outside view of the universe, therefore […]\nCarson Aim Telescope MTEL-50. The Aim MTEL-50 is a Refractor telescope. It’s 50mm diameter lens captures plenty of light for crisp, bright images and startling detail. It comes with an adjustable table top mount which is sturdy, rugged and easy to operate. This Aim telescope is suitable for viewing the Moon and planets, and because it […]\nCarson Sky Seeker Telescope JC-200 The Carson Sky Seeker Telescope JC-200 is a Dobsonian Reflector telescope. It’s 76mm diameter reflecting mirror captures plenty of light for crisp, bright images and startling detail. As it comes with a Dobsonian Mount rather than a tripod the JC-200 requires no assembly – it is ready to use right […]\nRed LED Flashlight This SL-11 Red LED Flashlight from Carson is the perfect companion for astronomers. Ideal for when you are out stargazing in the dark and want to check your star chart. Turning on a bright torch would ruin your night vision but the red flashlight is the solution. This flashlight helps your eyes […]\nCarson Red Planet Telescope RP-200 The Carson Red Planet Telescope RP-200 is a Refractor telescope. It features superior, fully coated optics and a high quality, heavy-duty aluminum tripod. The RP-200 features a Horizon mount with slow motion cables for smooth, easy tracking of celestial objects. Use the Red Planet telescopes to view the Rings of […]","domain":"optical_engineering"}
{"url":"http://www.zoukei.cn/info/1085/1271.htm","date":"2021-07-29T11:46:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153857.70/warc/CC-MAIN-20210729105515-20210729135515-00157.warc.gz","language_score":0.7878406047821045,"token_count":265,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__110223626","lang":"en","text":"Organic solid-state lasers (OSSLs) based on singlet fluorescence have merited intensive study as an important class of light sources. Although the use of triplet phosphors has led to 100% internal quantum efficiency in organic light emitting diodes (OLEDs), stumbling blocks in triplet lasing include generally forbidden intersystem crossing (ISC) and low quantum yield of phosphorescence (ΦP). Here, we reported the first triplet-phosphorescence OSSL from nanowire microcavity of a sulfide-substituted difluoroboron compound. As compared with the un-substituted parent compound, the lone pair of electrons of sulfur substitution plus the intramolecular charge transfer interaction introduced by the nitro moiety lead to an highly efficient T1 (π,π*)←S1 (n,π*) ISC (ΦISC = 100%) and a moderate ΦP (10%). This, plus the optical feedback provided by nanowire Fabry-Perot microcavity, enables triplet-phosphorescence OSSL emission at 650 nm under pulsed excitation. Our results open the door for a whole new class of laser materials based on previously untapped triplet phosphors.","domain":"optical_engineering"}
{"url":"https://techkashif.com/new-apple-patent-suggests-a-much-efficient-displays-in-future-iphones-times-of-india/","date":"2021-03-06T04:00:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178374391.90/warc/CC-MAIN-20210306035529-20210306065529-00547.warc.gz","language_score":0.9398154020309448,"token_count":426,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__68469913","lang":"en","text":"Apple might bring a much efficient and sharp display in future iPhones to improve battery life and display quality. The Cupertino-based tech giant has filed a patent application that aims to reduce light emission while retaining the image quality by improving the sharpness levels. This will cancel out the additional light produced by the display and also reduce the power consumption of the displays resulting in better battery life. This suggests a much efficient display in future Apple devices such as iPhone, iPad or Watch or even the future Apple Glass.\nThe patent application was filed with the US Patent and Trademark Office (USPTO) by the title ‘Electronic Device Having Emissive Display With Light Recycling.’ According to the patent application, each lens in an electronic device display may have a reflective lens such as a catadioptric lens that receives polarized image light from the display and provides a corresponding image to an eye box. Apple says that the light emitting diodes (LEDs) may be overlapped by a light recycling layer like a reflective polarizer or cholesteric liquid crystal layer which will recycle light emitted by the display to reduce emission and improve efficiency.\nIn the patent application, Apple has also talked about improving the sharpness of the display by reflecting extra light created by the display keeping efficiency in mind. Apple clearly mentions in the display that regular LEDs usages cavity design that do not maximize efficiency and rather operate at a suboptimal operating to maximise the viewing angle compared to displays with high efficiency. Apple in the patent has mentioned that “the use of light recycling layer in display panel acts as an external cavity feature that alters the design considerations for the light emitting diodes and allows off-axis luminance to be boosted at high efficiency.”\nApple filed the patent back in February 26, 2020 and was approved by USPTO on November 19, 2020. According to the patent, a display usually produces much more light, when turned on, than required and with the new patent Apple seems to have a legit plan to cancel out that additional light and improve the efficiency of the displays.","domain":"optical_engineering"}
{"url":"https://ru.soy-charger.com/ai-article/can-laser-eye-surgery-regress.html","date":"2022-12-05T11:23:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711016.32/warc/CC-MAIN-20221205100449-20221205130449-00874.warc.gz","language_score":0.9547206163406372,"token_count":867,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__211611955","lang":"en","text":"I would say its due to age as 40 is the age where presbyopia is believed to begin and even laser eye surgery doesnt stop this naturally occuring symptom.\n1. how strong does a laser pointer have to be to permanently injure eyes?\nThere are two limits you need to worry about. The first, the eye damage threshold, is about 1 mW. This is actually a fairly low powered laser pointer, as laser pointers go. But at 1 mW, the laser can and will damage your eyes if you stare into it. However, most visible lasers are considered relatively safe under 5 mW. That is because for lasers at this power, though they have more power than needed to injure your eye, the damage occurs slower than you blink. So your automatic reflex will be to blink and look away before substantial damage can occur. This makes these types of lasers relatively safe. Now, without a doubt, if you stare into such a laser and try to ignore your blink reflex, you can certainly damage your vision with such a laser. Above 5 mW, the damage occurs faster than you can blink, so those lasers are not considered safe. To put this in prospective, the sun will give you about as much power as a 1 mW laser. And, of course, you are not supposed to stare into either light source. For something to pop balloons, you need somewhere around 100 mW, which is well over the 5 mW blink-threshold and will instantly do permanent damage to your visions. For a laser to hurt when you shine it on your skin, you need around 500 mW, which is a very powerful laser and can light up a room very easily. All of this depends on many factors, like the beam diameter, if there is any sort of focusing, and to some extent, the wavelength of the laser. For example, a 1 mW ultraviolet or infrared laser is considered dangerous because you do not have a blink reflex for these invisible wavelengths. But for visible lasers, the numbers I gave you are appropriate for the typical beams you get from laser pointers. As far as the optometric physician, who said that laser are legally mandated to be safe, he does not know what he is talking about. Are all knives safe? As a physicist who deals with unsafe lasers every day, I can tell you that without a doubt, most legal lasers pointers can and will damage your eyes if you stare into them or ingore simple safety steps.\n2. Convert 12VDC fan controller output to TTL signal of laser?\nI solved this with a very simple circuit, which avoided the need to run extra ground or 5/12V lines. I used a simple optocoupler and resistor.Again this is an inverted control: when the fan is ON, the laser will be OFF. Anything less than 100% output on the fan will result in the laser pulsing at the fan PWM frequency.I have a Monoprice Maker Select 3D printer which uses RepRap compatible g-code. To turn the laser ON, issue M106 S0, and to turn the laser OFF, issue M106 S255 gcode commands. I am using the J Tech Photonics Inkscape plugin to generate laser g-code, and it does not support this type of inverted output. So it's necessary to do a search/replace in the gcode file to swap the M106 S255 and M106 S0 commands.YMMV - hopefully helpful to someone!simulate this circuit - Schematic created using CircuitLab.\n3. laser hair removal during pregnancy?\nI personally would not risk it, and I am holding off to complete my last two laser hair treatments until I give birth. It does not hurt to wait. The hair is not going anywhere! Plus, I've read that the hormones of pregnancy often tends to spur dark hair to grow where it should not . So I figure I will get more out of the treatment if I wait and can remove those hairs as well. I would also be concerned about the safety of the prescription numbing creams they use prior to the procedure. Those creams do get absorbed into your skin, your bloodstream, and into the unborn fetus. I would not want to subject my baby to that.","domain":"optical_engineering"}
{"url":"http://clrccires.colorado.edu/program.html","date":"2018-03-21T08:55:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647600.49/warc/CC-MAIN-20180321082653-20180321102653-00660.warc.gz","language_score":0.8847285509109497,"token_count":917,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__247501204","lang":"en","text":"Robert L. Byer\n(Stanford University, USA)\nProfessor Robert L. Byer is the William R. Kenan, Jr. Professor of Applied Physics at Stanford University. He has conducted research and taught classes in lasers and nonlinear optics at Stanford University since 1969. He has made numerous contributions to laser science and technology including the demonstration of the first tunable visible parametric oscillator, the development of the Q-switched unstable resonator Nd:YAG laser, remote sensing using tunable infrared sources and precision spectroscopy using Coherent Anti Stokes Raman Scattering (CARS). Current research solid state laser sources with applications to gravitational wave detection and to laser particle acceleration.\nProfessor Byer is a Fellow of The Optical Society, the Institute of Electrical and Electronics Engineers (IEEE), the American Physical Society and the American Association for the Advancement of Science and the Laser Institute of America. In 1985 Professor Byer served as president of the IEEE Lasers and Electro-optics Society. He was elected President of the Optical Society of America in 1994. He served as President of the American Physical Society in 2012.\n(Tohoku Institute of Technology, Japan)\nProfessor. Kazuhiro Asai was born in Aichi in 1946. He graduated from Tokyo Denki University in 1968 and served as a research associate at Research Institute of Electrical Communication, Tohoku University (Sendai, Miyagi) during 4 years from 1969 to 1973. He received a Doctor of Engineering degree in research on “Spectroscopic studies of Tropospheric Ozone and it’s Remote Detection using Infrared Laser Differential Absorption” from Tohoku University in 1978. He worked at the former Radio Research Laboratory (the current National Institute of Information and Communications Technology (NICT)) for 12 years, and then moved to Tohoku Institute of Technology (Sendai, Miyagi) as a professor in 1989. He became a professor emeritus in 2012. In 1984 and 1985, he also served as a postdoc at Georgia Institute of Technology in Atlanta, Georgia. His major research fields are DPSS cw/Q-switched lasers, and it’s applications for remote sensing. He has served a member of Advisory Board of CLRC since 2003 and was a conference chair at 13th CLRC held in 2005 in Kamakura, Japan. He has served as a visiting researcher at the former National Space Development Agency (the present Japan Aerospace Exploration Agency (JAXA) during eleven years from 1990 to 2000 for conducting the first space-based lidar (ELISE : Experimental Lidar In Space Environment) program.\nHe is now involved two lidar programs in JAXA, “MOLI” and “SafeAvio”. The former is a vegetation lidar program named “Multi footprint Observation Lidar and Imager (MOLI)” for measuring global forest canopy height from the International Space Station (ISS)-Japanese Experiment Module (JEM). It is planned to be launched in 2021. The latter is an airborne coherent Doppler lidar (CDL) program called “SafeAvio” for establishing warning system for wake vortex, mountain wave or clear air turbulence.\n1. Novel Sensing\nPaul J. M. Suni (Lockheed Martin Coherent Technologies, USA)\nPhilip Gatt (Lockheed Martin Coherent Technologies, USA)\nKaoru Minoshima (The University of Electro-Communications, Japan)\n2. Laser & Devices\nJirong Yu (NASA, USA)\nSteven A. Serati (Boulder Nonlinear Systems, USA)\nTakayuki Yanagisawa (Mitsubishi Electric Corporation, Japan)\n3. Lidar System\nMikael Sjöholm (Technical University of Denmark, Denmark)\nBenjamin Witschas (DLR, Germany)\nAlain M. Dabas (Météo-France, France)\n4. Wind Energy\nYelena L. Pichugina (NOAA, USA)\nMichael Harris (ZephIR Lidar, UK)\n5. Measurement, Simulation, Modeling, and Signal Processing\nJean-Pierre Cariou (Leosphere, France)\nSonghua Wu (Ocean University of China, China)\n※The detailed program will be ready around the middle of April.","domain":"optical_engineering"}
{"url":"http://cesargnpq913.blogminds.com/two-factors-you-do-definitely-not-have-information-relative-to-lasik-eye-procedures-4960040","date":"2018-10-17T04:19:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583510969.31/warc/CC-MAIN-20181017023458-20181017044958-00039.warc.gz","language_score":0.9559168219566345,"token_count":879,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__225790132","lang":"en","text":"Two Factors You Do Definitely Not Have Information Relative To LASIK Eye ProceduresThe eye can be analyzed with relative ease as to both its function and its structure. A functional assessment consists of the ability to relocate the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be tested in numerous ways. The client might be asked to determine illuminated letter or things of varying sizes on exactly what is called the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye might be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In specific illness, particularly in glaucoma, the stress in the eyeball is increased considerably.\nIt ought to be well kept in mind that a client with an eye issue might have other problems. Frequently other physical conditions are main and impact the eye as a consequence. The appearance of the eye can notify the client and the doctor to problems in some disruptions of other parts of the body even prior to other signs provide themselves.\nConsequently, one's dependence on sight is highlighted when one faces a short-lived or possible long-term loss of this crucial sense. Hence, when corrective measures are sought, certain forms of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some individuals are bothered with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another form of vision correction. The only distinction is that with this kind of surgical treatment, one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgical treatment, there are still disadvantages that individuals should know. Probably, the main reason that this type of eye surgical treatment has ended up being well accepted is since the majority of its cases had achieved success.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is one of the most delicate portions of the eye, a lot of people state that the operation can be really risky.\nSimply puts, a basic error could nearly trigger an person's lifetime blindness. It is crucial to think about lots of factors before deciding whether LASIK eye surgical treatment is the right restorative measure one has to undergo.\n2. It is not a ideal treatment\nLASIK eye surgical treatment may correct your vision but it does not always imply that it can give you a best vision. Even if analytical reports show Visit Website that 70% of the patients may have 20/20 vision, this does not necessarily suggest they have perfect vision as well.\nGiven all go right here these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not always be the perfect eye surgery the method the majority of people see it\nAlternatively, the assessment of the structural part of the eye may be made in several methods. It needs to be well kept in mind that a client with an eye problem might have other problems. Often other physical conditions are main and affect the eye as a effect. The look of the eye can alert the patient and the physician to problems in some disturbances of other parts of the body even prior to other signs present themselves.\nLike its tangible equivalent, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.behindwoods.com/news-shots/iphone-8-wont-sport-touch-id-fingerprint-sensor-report.html","date":"2019-11-15T13:31:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668644.10/warc/CC-MAIN-20191115120854-20191115144854-00251.warc.gz","language_score":0.8349202275276184,"token_count":135,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__16680177","lang":"en","text":"Reports suggest that the upcoming iPhone 8 won’t sport Touch ID fingerprint sensor, stating Apple will bring 3D facial recognition instead. The Cupertino giant is testing the 3D facial recognition to unlock the screen and authenticate the user using the new 3D front camera system. Claiming that the 3D system will allow users to unlock the screen, authenticate payments, and launch secure apps, reports said the company is also testing eye scanning to augment the facial recognition system.\nBy Vikraman Maniraj | Jul 4, 2017 2:16 PM #iPhone8 #TouchIDFingerPrint #3DFacialRecognition\nRead More News Stories","domain":"optical_engineering"}
{"url":"http://www.edimensional.com/product_info.php?cPath=21&products_id=100","date":"2013-05-20T12:38:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698958430/warc/CC-MAIN-20130516100918-00047-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8439776301383972,"token_count":245,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__23241513","lang":"en","text":"3D projection viewing is now available for a fraction of the price.\nFor stereo projection professionals and enthusiasts, eDimensional is pleased\nto now provide custom stereoscopic viewing solutions designed for commercial or\nindustrial use. Like our 3D gaming glasses, the glasses are fully adjustable,\nlightweight, and highly durable for extended use. With infra-red wireless\nconvenience, an unlimited number of users can share a single transmitter unit\nfor group viewing.\neDimensional has custom-built an advanced emitter capable of transmitting\nnearly 20 feet and a wide viewing angle without disruption. The 2 included\ncustomized liquid crystal wireless shutter glasses are also capable of receiving this\nlong-range signal and additional pairs can be purchased for just $50 each, less\nthan 1/15 the price of other commercial stereo viewing glasses. We can do this\nbecause of the tremendous volume of 3D glasses that we sell.\nThis package includes a dual LED long-range mini-DIN emitter, VGA video\nsynchronization module, and 2 pairs of wireless 3D glasses (Six 75-100\nhour batteries are also included.)\nThis item ships from the USA only.","domain":"optical_engineering"}
{"url":"https://irishbuildingmagazine.ie/2013/04/20/specsavers-launches-varifocal-range-for-safety-eyewear-significant-corporate-price-reductions/","date":"2024-02-25T18:57:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474641.34/warc/CC-MAIN-20240225171204-20240225201204-00514.warc.gz","language_score":0.9293304681777954,"token_count":394,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__96109508","lang":"en","text":"Customers of Specsavers Corporate Eyecare in the Republic of Ireland can now choose from a range of varifocal lenses for their safety eyewear. The launch is being marked with significant price reductions for corporate clients.\nUntil now, safety eyewear customers who require varifocal lenses have typically only been provided with a choice of standard designs. This can present adaptation problems if the customer usually wears a different lens category in their everyday glasses. Specsavers Corporate Eyecare is, however, now launching across Ireland a full range of varifocal lenses for use in its safety eyewear.\nCustomers can upgrade from standard varifocal lenses to options from the premium, elite or tailor made categories, taking advantage of the latest technologies in lens design. Corporate clients purchasing varifocal lenses through Specsavers’ voucher scheme benefit from considerable price reductions. For example, premium varifocal lenses are reduced by 44%, from an in store price of €115 to just €64.\nVarifocal lenses combine three different prescriptions in one clear lens. This allows the wearer to see clearly at all distances, without having to remove or change glasses. For those who use varifocal lenses in their everyday life and are required to wear safety eyewear at work, this is an important advance.\nDona McLafferty, corporate account manager for Specsavers Corporate Eyecare in Ireland, says: ‘People are rightly choosey about the lenses they have in their everyday glasses . Considering the significance of safety eyewear and the tasks people may be executing while wearing them, it is crucial that they are provided with eyewear that is well fitted, comfortable to wear and provides the best possible vision. We are delighted to be able to bring these extra options to our corporate customers.’\nFor more information regarding varifocal safety eyewear visit: www.specsavers.ie/corporate","domain":"optical_engineering"}
{"url":"https://studymafia.org/light-tree-seminar-report-with-ppt-and-pdf/","date":"2024-04-14T07:33:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816875.61/warc/CC-MAIN-20240414064633-20240414094633-00570.warc.gz","language_score":0.8949488401412964,"token_count":1148,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__47866453","lang":"en","text":"Light Tree Seminar Report with PPT and PDF\nLight Tree Seminar and PPT with PDF Report: Nowadays there is a normal unanimity that in the coming days the wide area network (WAN) will be based on the wavelength division multiplexing (WDM) optical networks. There are many important advantages of the wavelength division multiplexed wide area network over the other optical applied sciences like time division multiplexed (TDM). Here we are providing Light Tree Seminar and PPT with pdf report.\nLight Tree Seminar Report with PPT and PDF\nThe concept of a light tree was introduced in a wavelength-routed optical network that uses the wave division multiplexing, depending on the beneath physical topology, networks can be divided into three generations and they are as below:\n- First generation\n- Second generation\n- Third generation\n- First generation: The first generation networks do not use the fiber optic applied science and instead of that they use the copper-based technology or the microwave technology. The example of first generation network is the Ethernet.\n- Second generation: The second generation networks employ the optical fibers for the transmission of the information but the switching operation is performed in the electronic field. The example of the second generation network is the FDDI.\n- Third generation: The third generation networks employ both the data transmission and switching in the optical field. The example of the third generation network is the WDM.\nA light path is an optical path or optical channel and they are employed to carry circuit switched traffic and also it may encompass the multiple fiber links. If the wavelength converters are not present then a light path will occupy the similar wavelength continuity compulsion. Lightpath can assign a particular wavelength to the fiber link. The light path can make the logical neighbors or virtual neighbors out of their nodes and the nodes may be physically very far from each other. The vital objective of the light path communication is to decrease the number of hops that a packet traverses. The light path communication uses an equal number of transmitters and receivers because each path works on a point-to-point basis.\nThe light tree is a point to multipoint expansion of light path and wide area networks (WANs) are made to support the point to point exchange of information. In the coming days, the use of multicast applications may increase and this brings the need to furnish multicasting support on wide area networks (WANs). The light tree holds the context of the light path by incorporating the ability of optical multicasting. It also empowers the single-hop exchange of information between a producer node and a set of destination nodes.\nApplications of the Light Tree:\nThe light tree has the applications in the following fields:\n- In the teleconferencing\n- In the software distribution or file distribution including the file duplication on the mirrored site.\n- In distributed games\n- Internet news distribution\n- Internet television\nAdvantages of the Light Tree:\nThe advantages of the light tree are as follows:\n- It has the feature of data security.\n- It is ease of installation.\n- It eliminates the spark hazards.\n- It furnishes high bandwidth over long distances.\nDisadvantages of the Light Tree:\nThe disadvantages of the light tree are as follows:\n- The light tree’s price is a disadvantage of it.\n- It has the features like fragility and opaqueness.\n- It needs special skills.\nOptical layer of light tree:\nNormally, the topologies of a wavelength routing network have the wavelength cross connect (WXS) nodes which are interconnected by the links of fiber. The network furnishes light path between the pairs of networks nodes and the light path is a pipe or channel that carries the information up to many gigabytes per second. The number of supported wavelengths depends on the limitations of the components and transmission, the optical layer furnishes light paths to the higher layers. The other features included in the optical layer are:\n- Wavelength reuse\n- Virtual topology\n- Circuit switching\n- Transparency: The transparency is a feature that refers to the truth that light paths can carry information at the different bit rates and at the set of rules.\n- Wavelength reuse: At present, the number of wavelengths available is limited but the network can still furnish large capabilities as the wavelengths can be reused.\n- Reliability: The reliability feature furnishes a high level of reliability in the network.\n- Virtual topology: The virtual topology feature is a graph that has the network nodes.\n- Circuit switching: The light paths furnished by the optical layer can set up the circuits and even take down the circuits in the circuit switched networks.\nContent of the Seminar and pdf report for Light Tree\n- TDM and WDM\n- Types of WDM\n- Comparisons of CWDM and DWDM\n- Light Path & Light Tree\n- Architecture of Light Tree\n- Unicast, Broadcast & Multicast Traffic\n- Combining Unicast & Multicast Traffic\n- Advantages and Disadvantages\nHere we are giving you Light Tree Seminar and PPT with PDF report. All you need to do is just click on the download link and get it.\nIt was all about free Light Tree Seminar and PPT with PDF Report. You want to say something about it then please share it or if you want to ask anything then please hit comment button.","domain":"optical_engineering"}
{"url":"https://howieshappyhydroponics.ca/product/sun-system-pro-sun-lec-315-commercial-fixtures/","date":"2023-09-23T15:15:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506481.17/warc/CC-MAIN-20230923130827-20230923160827-00357.warc.gz","language_score":0.8320470452308655,"token_count":273,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__322932335","lang":"en","text":"Sun System Pro Sun LEC 315 Commercial Fixtures\nThe Sun System® Pro Sun™ LEC® 315 120-240V Etelligent™ compatible fixture combines the cutting-edge Light Emitting Ceramic® brand technology with Sun System® Etelligent™ controllability options (controller sold separately #902245). State-of-the-art 95% reflective German aluminum optic offers unparalleled output, reflectivity and diffusion. The 315 LEC®/CMH lamp (sold separately) creates amazing full color light spectrum out of next-generation ceramic lamps. Higher amounts of beneficial UV and far red spectrums increase the lamp’s growth power to the plants. Ballast has a thermally optimized non-fan cooled aluminum housing that is ideal for commercial environments. Lamp operates at 160 Hz low frequency, square wave, making this electronic ballast highly efficient and designed specifically to drive LEC®/CMH lamps at sustained peak performance. Internal ballast programming will protect unit in instance of open circuit, short circuit, over/under voltage or high temperature exposure. Features internal built-in circuit breaker. This unit is dimmable and can operate a LEC® lamp at 50%, 60%, 70%, 80%, 90% & 100%. Low current, staggered ignition delay feature eliminates circuit inrush overload and protects lamp for increased lumen maintenance.","domain":"optical_engineering"}
{"url":"http://louislidv999.fitnell.com/5095913/eye-surgery","date":"2018-04-20T12:55:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937780.9/warc/CC-MAIN-20180420120351-20180420140351-00395.warc.gz","language_score":0.9585129022598267,"token_count":1314,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__132890212","lang":"en","text":"Eye Surgical treatment has actually ended up being a mainstream technique of vision modification, as well as this short article will explain the benefits as well as drawbacks of three various techniques being provided to the medical customer.\nLasik Eye Surgical treatment\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and is an eye medical system which completely fixes vision by removing a slim layer of the cornea. This treatment works best on people with moderate to high levels of nearsightedness (nearsightedness), low to modest degrees of hyperopia (farsightedness) and astigmatism related to myopia, and also that have thick corneas. It is the most popular surgical vision improvement technique.\nPeople with typical eye sight see things plainly because photos are brought right into a proper focal point by the cornea as well as lens of the eye. Preferably, the cornea's curvature is uniformly matched to its size in a normal eye. People with astigmatism, nearsightedness or hyperopia have irregularly formed corneas, so the objects seen are not focused effectively. LASIK changes corneal shape by specific removal of corneal tissue, and also by doing so corrects the eyes' focusing power.\nThere are, nevertheless, threats to LASIK eye surgery.\nThere is a remote possibility of full loss of vision. If this happens, it is typically since the person had a pre-existing condition which ought to have prevented the surgical procedure in the first place, such as pregnancy, cataracts, arthritis, diabetic issues, glaucoma, or lupus. Individuals with huge pupils are likewise inadequate candidates for LASIK. Dry eye syndrome will certainly be exacerbated by this treatment.\nA few individuals whine that they permanently see \"ghost\" pictures, have obscured vision, reduced comparison and also bad evening vision. When LASIK wased initially introduced, 5% of people had post-operative problems; nevertheless, improvements in the treatment have actually created this price to go down to less than 1% if LASIK is carried out by competent specialists as well as clients are correctly screened prior to surgical treatment. If issues do take place, they could often be resoved by a retreatment.\nFDA has authorized LASIK laser eye surgical procedure since 1998. While there are a lot of satisfied individuals, there are nonetheless no long-term research studies concerning its results. Understand the constraints and also the dangers of LASIK eye surgery prior to you sigh for the procedure.\nThough less popular, these little implants can boost vision in individuals with moderate to moderate nearsightedness without the threat of long-term eye damage fundamental in the tissue removal technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter form. Though somewhat less specific than LASIK, they are removeable and exchangeable, so if the person has an unforeseen over- or under-correction, the implant could be eliminated as well as another of a various dimension inserted to obtain the wanted improvement. The implants lie beside the cornea, so the central aesthetic area is completely intact as well as intact, and also the toughness of the cornea is undiminished, making it a better choice for pilots and also those that engage in get in touch with sports where eye injury is an opportunity.\nIntacs are unsuitable for extreme myopia as well as greater than minor astigmatism (1.00 diopters), as the cornea can just be stretched thus far. If the Intacs are eliminated, vision go back to its preoperative degree. Aside from vision modification, Intacs are also made use of to treat keratoconus.\nIntacs are FDA accepted as well as 10 year research studies have revealed no significant troubles with Intacs as well as very few person grievances; however, because the treatment takes a lot more training than LASIK, there are less eye surgical treatment clinics using it. Nevertheless, the Intacs site provides a list of professionals in each state, as well a couple of in Canada, Europe and Mexico.\nSince many individuals do not wish to take the chance of LASIK as well as Intacs can not aid those with severe vision problems, check my blog intraocular lens implants (IOL) are a new alternative approved by the FDA in 2004 to remedy moderate to serious nearsightedness. web link The Artisan lens, produced by Ophtec, is similar to the kind of lens implant used to recover vision complying with cataract eye surgical procedure.\nThe brand-new IOL, called the Artisan, is meant for just clients that have 2.5 diopters or less of astigmatism.\nThe man-made lens does not replace the all-natural lens, however is placed before it. The main issue located with the implant was the constant loss of endothelial cells in the corneas of clients that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are important in maintaining the cornea clear. A three-year research showed a regular constant loss of endothelial cells of 1.8 percent a year. At this point, no one can anticipate whether this loss will certainly continue at the very same rate indefinitely, or even its effect on corneal function.\nTo lessen lasting results of the tool on the corneal endothelium, the FDA is requiring that the new lenses be labelled to specify that they ought to just be implanted in individuals whose corneal endothelial cells are thick enough to endure small cell loss.\nMore major issues were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is requiring Ophtec to conduct a five-year follow-up survey of its implant individuals to better evaluate the post-surgical occurrence of cataract growth, retinal detachment and other ophthalmic illness.\nThe Artisan lens is meant to be a long-term implant.Though it could be gotten rid of surgically, vision might not constantly go back to just what it was before obtaining the lens. Due to the fact that it does not influence astigmatism, patients with this problem could still call for glasses.","domain":"optical_engineering"}
{"url":"https://www.molarray.ca/products-ma-688","date":"2023-12-01T23:57:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100308.37/warc/CC-MAIN-20231201215122-20231202005122-00833.warc.gz","language_score":0.8806103467941284,"token_count":192,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__102339443","lang":"en","text":"Real-time fluorescence quantitative PCR instrument\nMA-688 real-time fluorescent quantitative PCR instrument adopts maintenance-free LED as an excitation light source and is operated by an external computer with high efficiency and convenience. It can be widely used in basic medical research, pathogen detection, molecular cloning, genetic screening, gene expression, genotyping, transgenic detection, food safety detection and epidemic monitoring, and a variety of other fields.\nMA-688 real-time quantitative fluorescent PCR instrument is a fully open design and economical real-time quantitative fluorescent PCR instrument tailored for qPCR beginners and small laboratories based on the MA-6000 series technology platform.\nWith a compact body, 48x0.2 ml international standard sample array, and standard 4-colour fluorescence detection channel, the MA-688 is excellent for improving time efficiency and economic costs, which will help you to advance your work in the era of fluorescence quantitative PCR experimentation.","domain":"optical_engineering"}
{"url":"https://www.photographypospech.com/canonef200mmf18lusm.htm","date":"2022-10-01T11:58:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335609.53/warc/CC-MAIN-20221001101652-20221001131652-00573.warc.gz","language_score":0.8866212964057922,"token_count":354,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__93457317","lang":"en","text":"Although discontinued for a while (and replaced with wonderfull EF 200mm f/2.0L IS USM) this lens is still legend.\nAngle of View 12°\nMax Aperture f/1.8\nMin Aperture f/22\nMin Focus 2500mm\nFilter Size 48mm\nNumber of Aperture Blades 8\nElements 12 in 10 groups\nPhotos info: Canon EOS 1DIII, handheld, RAW converted in DPP 3.9.2 and cropped without any manipulation. If not stated otherwise photos were taken using open aperture and iso 200. The image is followed by 100% crop.\nComprehensive review can be found on The Digital Picture\nLens was tested in Aperture UK\nObviously this lens is meant to be used at open aperture in low ligt conditions or for achieving shallow depth of field. And for this purpose it works perfectly. Important notice: this lens is no longer repaired by Canon service.\nFor apertures 2.8 and above the Canon EF 200mm f/2.8L USM (II) can save you a lot of money and it's also lighter and smaller (and much less noticeable). The new Canon EF 200mm f/2.0L IS USM is wonderfull choice as its lighter than f/1.8 version, offers weather sealing, faster AF and IS (but also costs a lot more). The alternative is also the new Canon EF 70-200mm f/2.8L IS USM II which is an exceptional lens and it is considered to be the best Canon zoom so far (October 2010).\n© Alexandr Pospěch","domain":"optical_engineering"}
{"url":"http://www.weco.com/surface-inspection","date":"2013-05-19T21:57:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698090094/warc/CC-MAIN-20130516095450-00030-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9035505652427673,"token_count":811,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__45698990","lang":"en","text":"The Web Ranger is an optical surface inspection and defect classification system that provides a total quality solution for products produced in continuous webs.\nThe highly modular design allows the system to be tailored to any application based on web width, web speed and defect size (resolution) requirements. The incorporation of smart cameras with embedded processing resources enables the system to provide real time, 100% inspection of the material and rapid, accurate detection of defects.\nThe Web Ranger’s advanced surface inspection classification engine can perform precise defect classification based on extremely subtle differences between defect categories. Using over one hundred extracted features and multiple techniques, the classification engine can be easily trained to reliably recognize distinct defect categories present in the material being inspected. Web Ranger’s superior classification performance greatly enhances product grading, process control and overall quality control.\nClick any of the material category links to the right to view examples of defects that Web Ranger can detect.\nPlease Note: All defect sample images are visually enchanced to allow the defects to be easily visible to the human eye.\nprecise classification of defects into user-defined categories using advanced statistical (KNN) and non-linear heuristic methods\ncomprehensive database of defects with images, positions and all defect features\nautomatic transfer of defect data to an external device or system based on user-defined criteria\nstandard and custom reports of inspection results and statistics in tabular and graphical format\nautomatic detection and reporting of repeating defects\nGraphical display of product quality based on calculation of a Non Uniformity Index\nautomatic defect monitoring based on user-specified criteria that assign points to defect class occurrences\nautomatic grading of rolls based on user-specified grading criteria that assign points to defect class occurrences\nto generate alarms, trigger marking and tagging systems, automatically start/stop jobs, etc.\nEnglish, German, Chinese, etc.\nWindows-based open architecture allows easy connections to other systems and devices via OPC, SQL Query, Ethernet, or custom digital interface\nRemote access via Internet for system maintenance and software upgrades\n24/7 Technical Support via Internet and Telephone Hotline\nThe incorporation of smart cameras with embedded processing resources enables the system to provide 100% inspection of the material and rapid, accurate detection of defects. This allows the system to be easily optimized to inspect metallized plastic film, synthetic paper, fiberglass, woven textiles, coated nonwovens, glass and many more.\nWeb Ranger inspection solutions and classification libraries have been successfully proven for many industries.\nWintriss linear light sources are optimized for web inspection and the challenge of operating in a 24/7 production environment:\nWhatever your surface inspection application, Web Ranger is a cost-effective solution that provides a rapid return on investment.\nProper illumination is critical to effective flaw detection performance. Lighting design must consider material texture, web speed, defect size and type, color and ambient lighting.\nWintriss lighting experts have developed and patented a series of sophisticated techniques and specialized lights that are optimized for surface inspection. We are the best in the industry at determining the most effective lighting solution for the inspection application. Wintriss has patented several innovative lighting techniques that expose extremely small defects that can't be detected by other systems. The clarity of the images produced using these techniques results in reliable detection and accurate classification.\nA powerful classification engine quickly and accurately sorts the defects into user-defined categories to aid in production quality control and process improvement. All defect data can be viewed in real time and is also stored in a comprehensive database for subsequent review, analysis, reporting and archiving.\nOur Web Ranger system has been installed at over 250 locations in 16 countries worldwide. With local support available across the world there is no better choice for your surface inspection needs than Wintriss.\nLearn more about our products, get your questions answered or schedule consultations and installation.\nVisit our Contact page or\nUSA Toll Free: (800) 550-7300\nPhone: (858) 550-7300","domain":"optical_engineering"}
{"url":"https://www.passionforsavings.com/online/oakley-sunglasses-on-sale/","date":"2024-02-22T10:50:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00263.warc.gz","language_score":0.8398270010948181,"token_count":330,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__117463286","lang":"en","text":"Do you love Oakley Sunglasses or will you be buying some as a gift this year? You will not want to miss this deal! We have some awesome Oakley Sunglasses On Sale right now at Proozy! Check out the Women’s Sunglasses we have for you, too!\nOakley Sunglasses On Sale\nI love the sleek look of these sunglasses, and the narrow lenses are perfect for the men. I am totally grabbing these for my husband. He will love them, and I am loving this price. Through June 13th, hop on over to Proozy where you can score these Oakley Men’s MPH Chainlink Sunglasses for $54 shipped when you use our exclusive promo code MPH54 at checkout!\n- Clarity: Conventional lenses can magnify images. HDO precision gives less distorted vision across the entire field of view.\n- Refraction: With regular lenses, objects aren’t really where you see them. HDO offers a truer visual image so your brain won’t have to work overtime.\n- High Definition Optics (HDO) provides superior optical clarity and razor-sharp vision at every angle\n- UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.\n- Polarized and Iridium lens options available\nAll orders $50 or more will ship for free from Proozy.\nDon’t miss out on scoring these fabulous Oakley sunglasses while this coupon code is available!\nOakley® is a trademark of Oakley, Inc.","domain":"optical_engineering"}
{"url":"https://www.campfirehq.org/best-value-night-vision","date":"2024-02-21T18:50:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473524.88/warc/CC-MAIN-20240221170215-20240221200215-00080.warc.gz","language_score":0.9302782416343689,"token_count":3091,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__36602060","lang":"en","text":"The Best Value Night Vision For 2024\nOur Top Picks\n1. Best Overall: JStoon Night Vision Goggles\nThis product has outstanding optical clarity and a high-performance digital night vision device that can observe the target in complete darkness and at a range of up to 984ft/300m.\n2. Best For Price: CREATIVE XP Night Vision\nWith a bright maximum light level of 50,000cd/m2 at 3ft, this handheld monocular is perfect for anyone needing a little extra illumination when they need it. Moreover, our digital night vision monocular has a 4x digital zoom and a 3x optical magnification to ensure you see everything.\n3. Best Quality: Bushnell Equinox Z Digital Night Vision Monocular\nBushnell's Equinox Z Digital Night Vision Monocular is a super compact, lightweight, and easy-to-use pair of binoculars for daytime and nighttime use. The Daytime color with IR off mode makes this monocular perfect for use in daylight or during the day.\n4. Best Efficient: GeowFiiTech Night Vision Binoculars 4K\nGeowFiiTech brought the latest and most excellent 4K Night Vision Binoculars to the market, offering much more than your average pair of binoculars. Our 25mm lens is specifically designed for a wider field of view, making it easier to scan and see targets from a distance.\n5. Best Resolution: ZIMOCE Night Vision Goggles\nZIMOCE night vision goggles are equipped with a CMOS sensor and an 850nm infrared illuminator, allowing you to see the field of vision about 400 meters/1312 feet away at night. They have 7 IR illuminator levels, the higher the level, the better the night vision effect and the clearer the target.\nToday's world is lit with artificial light. This means that criminals are just as likely to operate in daylight as at night. You can see in the dark if you have the right gear! For example, a simple pair of night vision goggles will help you see, even in pitch blackness.\nHowever, modern night vision isn't, and there are prior products that claim value for money. With that in mind, we've compiled our best picks to help you find the most affordable quality night vision equipment on the market today.\nYou can count on our team of experts who have spent over 20 hours conducting results through 1,359 genuine customer reviews. Because of this, we concluded that the Best Value Night Vision is the JStoon Night Vision Goggles cause it features an infrared illuminator that allows you to view animals in complete darkness for 6 hours without using lights. And CREATIVE XP Night Vision is another choice for you while keeping the product's quality and functionality.\nRELATED: We evaluated the best night binoculars from 1,483 customer reviews. Read this article to determine which is the best option for you.\nOur Top Picks\nThe 850NM Infrared Illuminator and 7-gear infrared adjustment allow you to use the night vision scope both during the day and at night The IR gear can be adjusted to match the lighting conditions. The higher the infrared light gear is set, the farther and clearer the nighttime observation is It has a high resolution to better display the views, as well as the ability to take 1280x960 pixel images and @30FPS video in the dark\nThe card has a low memory and is a bit hard to use\nWhile other night vision devices cannot provide high-quality photos and videos without ambient light, drain your batteries in minutes, or are bulky and difficult to control, the Compact Night Vision Binoculars feature an infrared illuminator that allows you to view animals in complete darkness for 6 hours without using lights.\nThese night vision goggles have a 3X magnification and 4X digital zoom, an 850 nm infrared illuminator, and can see 984 feet in complete darkness. The 25mm objective lens does not provide as much detail as larger lenses found in the best night-vision goggles. However, the low price tag means you won't be too concerned if your child breaks them—the IP56 rating provides only limited protection against water and dust.\nA no-glow infrared illuminator is included to assist you in viewing animals in complete darkness Compatible with tripods from Bushnell, Firefield, SiOnyx, and Sightmark This infrared monocular can quickly run for up to 6 hours on a single charge With our digital monocular's 1.5-inch TFT screen, you can see your images as soon as they are captured\nThis night vision isn't a military-grade\nThe CREATIVE XP Digital Night Vision Monocular is one of the best low-cost night-vision devices available, with a 25mm objective lens that allows you to see up to 650 feet ahead. Even in complete darkness, an LED illuminator provides clear vision—no ambient light is required. You can also take photos, record soundless videos, and play back what you've registered. It includes a USB cable and a 32 GB microSD card, but it supports microSD cards up to 128 GB. Best of all, at slightly more than 10 ounces, it's highly portable for on-the-go use.\nYou may find it challenging to have a clear image, but the resolution is not that bad when used as intended. It's not 4K by any means, but it's certainly good enough to see details depending on the range. It does have manual focus, which can be a little tricky at first, but it works fine once you find the sweet spot for the content you're looking at.\nWith an on-board infrared illuminator, the Equinox Z provides up to 750 feet of viewing distance Multicoated glass objectives provide exceptional optical clarity The accessory mounting rail is Picatinny style It has a capability for video output, video recording, and image capture using up to a 32GB Micro SD Card\nThis model use AA batteries\nThe Bushnell Equinox Z Digital is an excellent camera for those who require perfect night vision while also having a camera that can be used during the day. You can also get this model without breaking the bank, immediately making it a good buy. Because this model works both during the day and at night, you don't have to worry about bright lights damaging the internal optics.\nThis model also includes excellent video recording capabilities, ideal for those chance nighttime encounters you want to share with family and friends. It has a super-fast shutter speed, which means your photos will be less prone to blur. The fact that it runs on AA batteries makes it more expensive to operate than competing models that include a rechargeable battery. Overall, we believe this is the perfect night vision monocular on the market.\nThis Night Vision Binocular has superior imaging and night vision capabilities compared to other devices with 25mm lenses The high resolution provides improved imaging texture to take your photos and videos to the next level Seven gears adjustment with upgraded 25mm multi-coated objective lens for better visual quality in daylight or complete darkness It is an excellent thermal goggle for night hunting, caving, fishing, camping, observing wildlife, and so on\nThe screen is too bright to follow\nThese upgraded 4K night vision binoculars have 8x digital zoom and a 24mm caliber 10x magnifying lens that will help you capture a good moment within 984ft(300m). For a clear display, adjust the lens after zooming in/out. High-resolution images and videos will give you an unforgettable visual experience on the practical 2.4\" IPS TFT screen. You can quickly check and replay with the night vision goggles.\nWith a built-in rechargeable recyclable battery, these MINI night vision goggles will relieve you of the burden of carrying several AA batteries, as they can be charged at any time and in any situation using a power bank or car charger. It would be best if the screen should be more significant because it zooms in far too much.\nThe ZIMOCE military tactical night vision goggles have three operating modes: photo, video, and playback You can press the shot button to capture the wonderful moment in videos and photos and save them to the SD card Connect to your computer with the included USB cable and share with your friends Through the 2.5-inch LCD screen, you can see everything in full color\nThis night vision binocular is very small so it will be not suitable for some people\nWith a 2.5-inch LCD screen, 6X optical zoom, and 4x digital zoom, you can clearly see wild animals in fields, woods, or even your backyard in the dark. Compared to other night vision binoculars, our infrared binoculars use double-tube hidden technology, which allows you to observe without getting too close to the screen and keeps your eyes from tiring after a long observation period.\nThis product can support up to 1080P HD video resolution and 12MB photo resolution, which can be changed via the built-in menu, which is very clear and simple. This model comes with a pre-installed 32GB micro-SD card but no battery, which requires a single 18650 battery. It would be fantastic if it came with a single battery and a better storage case for protection.\nYou can capture high-quality video at any time of day or night using a micro SD card With the built-in IR illuminator, the night vision range exceeds 650 feet A built-in infrared illuminator, a tripod mounting adaptor, and micro SD card recording are all included The 5X zoom brings out the details, and full-color daylight viewing 24 hours a day, seven days a week\nThe LCD can be too bright to see\nThe Bushnell Equinox X650 Night Vision Monocular can improve your nocturnal adventures, whether hiking under the stars or hunting in the dark. The built-in columnated infrared illuminator allows you to see in complete darkness, while the 32mm objective lens provides plenty of light and a field of view of 26 feet at 100 yards. The 5X zooming makes the deer you're hunting or the owl you're watching appear even more significant.\nThe LCD eye monitor's brightness is hard to dim, so it would be nice if this product could reduce the brightness at night. Meanwhile, these infrared goggles are compact, measuring less than eight inches long, six inches wide, and weighing less than a pound. Once the batteries are installed, you will have hours of use that will allow you to see your target at night.\nThis model has a small minimum focus range of only 3.3 feet Equipped with the most recent developments in consumer night vision technology that are within reach of average consumers. The xGen viewer is capable of operating in low-light or completely dark environments thanks to its powerful infrared illuminator that is built in It was designed for viewing objects up to 70 yards away\nThis device will hurt your eye if you use it for too long\nThe Night Owl Xgen 2.1x is an excellent value for an essential night vision monocular at an affordable price. This model is small, making it suitable for both adult and child use. It's also straightforward to use. You won't have to tinker with most functions unless you want to, and most of what you need to do can be done with a single button press.\nThe best feature of this model is its low price, but it does have some drawbacks. This camera's sensor detects infrared light in a 640 x 480-pixel grid, but the display only has a 320 x 240 grid, which means your image quality is degraded from the sensor to the screen, which is the opposite of how most IR cameras work. Because of this, your image quality will be lower than on other models. Overall, this is an excellent low-cost night vision monocular.\nMore To Consider\nWhat to Look For in a best value night vision?\nTo buy any product seems easy, but to choose the best one is not straightforward. The time you take to research its outcome is significant. The same matter also comes to best value night vision of 2024 that we include in this article. But you can relax instead of spending too much time learning the products. It’s our duty!\nHere are the main features of best value night vision that all of you guys should keep in mind when deciding to make a purchase:\nAnalog Versus Digital Night Vision\nDigital night vision converts infrared lights to electronic signals, they do not need to be lit as it converts infrared light into electrical signals. They are often available in 3-4 generations with increasing quality and brightness. These images can be sharper and more clear, but they tend to cost more.\nThermal night vision creates images using the heat emitted by objects. This technology, however, is far more sophisticated than analog and digital infrared nights vision.\nCan You Stargaze With Night Vision?\nNight vision increases light in the dark, so point your telescope at the sky and you will be able to see stars, features, such as the Milky Way.\nIs Night Vision Worth It?\nThe use of night vision will determine whether it is worthwhile. This is a good choice if night vision is something you'll use often and for a specific purpose. For those who are simply curious, you may want to start small and upgrade as you become more proficient.\nWhy Is Night Vision So Expensive?\nThere are many reasons why night vision can be so costly. Technology that converts almost invisible light to visible light or technology that reads heat is one reason why night vision can be so expensive. Another reason is the relatively low demand, which also contributes to higher prices. Additionally, manufacturers often have very expensive contracts to make military NVGs. This drives up their prices. There are affordable alternatives, but they might not have all the bells and whistles.\nCan Civilians Get Night-vision Goggles?\nYou can, since there is no law or regulation regarding the ownership of them. But, the U.S. State Department cannot approve the export of tactical and military-grade weapons.\nDo Night-vision Goggles Work In Total Darkness?\nNight-vision glasses do work. These goggles allow you to see things in complete darkness even though they are a football field ahead. Night vision goggles convert light photons present in the night to electrical current, amplifying electrons and then converting them into visible light. The thermal goggles can detect heat energy and allow you to see shapes in images even when there isn't any light, such as in a darkened building. However, night vision goggles can't see through walls. The majority of the goggles are not designed for daytime usage. This can lead to internal and external damages to the NVR.\nHow Far Can You See With Night Vision?\nYour night vision glasses will vary in their range depending on the quality of the magnification and the ability to capture light. Some will only work at a distance of less than 1,000 feet, but others will be effective up to 1000 yards.","domain":"optical_engineering"}
{"url":"https://www.justpolarised.com/eyewear-information","date":"2020-01-28T22:33:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251783342.96/warc/CC-MAIN-20200128215526-20200129005526-00007.warc.gz","language_score":0.9301660656929016,"token_count":815,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__138424009","lang":"en","text":"The importance of wearing sunglasses\nGood quality sunglasses eliminate solar ultraviolet radiation (UVR), in particular the more-damaging UVB radiation. UV rays from sunlight can damage the retina and the lens of the eye. Long term exposure to UVR is linked to conditions like cataracts and age-related macular degeneration.\nAs the eye cannot see UVR, sunglasses have an important function in blocking UVR. Wearing cheap sunglasses with no UV filters poses an even greater danger than wearing none at all because the pupils will dilate allowing more harmful rays into the eye. Good quality sunglasses filter out both UVA and UVB rays, the latter responsible for causing sunburn and eye tissue damage with prolonged, unprotected exposure.\nGood quality sunglasses will be UV400 rated providing the maximum protection from harmful UVR (and necessary also to attain a CE Mark). All the sunglasses and eyewear we sell meet this standard.\nSkiing, walking or climbing at high altitude\nFor anyone going skiing, walking or climbing at high altitude it’s essential to wear good quality sunglasses or goggles because on mountains the sun’s harmful ultraviolet rays are easily underestimated, with a high risk of sunburn and ultimately skin cancer and eye cataracts. Because mountain air is cool, it gives a false sense of security about the sunlight. But the higher the altitude, the greater the ultraviolet (UV) radiation because there is less atmosphere to screen out harmful rays. A study by Japanese scientists revealed that eyes can receive up to 2.5 times more UV on mountains than at sea level. Even when the eyes are turned away from the sun, they can still get over 85 per cent more UV on snow. This can cause conditions such as snow blindness, which can lead to inflammation and cataracts.\nLens colours and their use\nThe most popular lens colour. It reduces all light equally, does not increase contrast or alter the colour of objects and is best used in bright and sunny weather.\n‘Smoke’ is the lens colour typically used as the base colour when a mirror finish is applied to the lens. It is similar to grey but can have a brown or blue hue.\nAmber and Brown\nPopular colours that increase contrast (field of vision will appear sharper), they provide a warm appearance and work well where judging distance is important (like golf). They are good for most weather / light conditions.\nA light enhancing colour – good for low visibility, dark, hazy and cloudy conditions. Also helps when driving at night. Provide exceptional contrast and enhanced depth perception. Not suitable in strong sun or high glare conditions.\nAre all polarised lenses the same?\nPolarised lenses are different to standard sunglass lenses; they have a special film which helps eliminate glare reflected off a surface like a pavement, road, water or snow. One of the questions we are often asked is “Do all polarised sunglasses stop glare?” The simple answer is yes. However, there is a difference between a £20 pair of polarised sunglasses and a £60+ pair. On lower cost polarised sunglasses, the polarised film is applied to the front of the lens. In time, this can scratch and wear down meaning the sunglass will lose some of its anti-glare effectiveness. You can of course prolong the life the polarised lens by always ensuring your sunglasses are kept in a pouch or case when not in use. On the more expensive polarised sunglasses the polarising film will be sandwiched between two other layers (usually polycarbonate) meaning the film can never wear out or lose its effectiveness.\nOn less expensive polarised sunglasses, the lens material used is likely to be TAC which is typically 1mm or 1.2mm in thickness. This means they should not be used where impact protection is required such as field sports. On the higher priced polarised the lens material is likely to be polycarbonate and a polarised polycarbonate lens also provides impact protection.","domain":"optical_engineering"}
{"url":"http://www.gnranalytical.com/category/products/","date":"2023-06-08T05:16:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654097.42/warc/CC-MAIN-20230608035801-20230608065801-00603.warc.gz","language_score":0.9075809717178345,"token_count":111,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__152556634","lang":"en","text":"We have been in the analytical instrument business for 30 years. We pride ourselves in a customer orientated approach providing excellent service support and offer a range of analytical instruments which use the latest technologies and superior build quality. All the GNR instruments are fully supported by us.\nTwo new mini CCD spectrometers released celebrating 30 years of design & production\nGNR are pleased to announce two new low cost/high performance optical emission spectrometers to add to the already extensive range of analytical equipmen already in production.","domain":"optical_engineering"}
{"url":"https://chitihabmapf.web.app/519.html","date":"2024-04-18T17:26:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817222.1/warc/CC-MAIN-20240418160034-20240418190034-00776.warc.gz","language_score":0.8851900696754456,"token_count":2718,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__163759862","lang":"en","text":"This passive infrared sensor alarm is a highquality, battery operated security device. Pir sensors are commonly used in security alarms and automatic lighting applications. The output of the amplifiers goes to a window comparator that uses internal voltage references from the regulator. Datasheet 753cf2 infrascan passive infrared motion sensor, dual load, flush ceiling mount gimbal application the dual load 360 degree infrascan pir sensor detects moving heat sources in its detection range and is suitable for residential and small commercial applications. The differences in the detection zone patterns are indicative of the projectionsof the 16 lenses with single focal point and with. The panasonic pir motion sensors abbreviated as papirs, has three series of products, including. Modeling the analog response of passive infrared sensor. Because the rtc wraps around at midnight, and on time is before midnight while off time is after, in order to generate the length of time the sensor needs to be on i need to add 96 to off time on time. Mp motion sensor amn2, 3, 4typical applicationsordering informationrating1. It uses a passive infrared pir motion sensor to detect intruders and activate a builtin alarm. The ir sensor module consists mainly of the ir transmitter and receiver, opamp, variable resistor trimmer pot, output led in brief. Media in category pir passive infrared sensor the following 61 files are in this category, out of 61 total.\nThere is a window made of ir transmissive material typically coated silicon since that is very easy to come by that protects the sensing element. Passive infrared sensor or pir and pir camera for security. Passive infrared pir sensor switch all electronics corp. Pir is an electronic sensor which detects the changes in the infrared light across certain distance and gives out an electrical signal at its output in response to a detected ir signal. Passive infrared sensor or pir is the technology and its usage is in pir camera for security which is used for cost saving and low carry cost with effectiveness. A passive infrared motion sensor is a security device that detects motion by looking out for the presence of infrared energy. As every word in science has a specific meaning usually with. Pirs are basically made of a pyroelectric sensor which you can see below as the round metal can. Hcsr501 passive infrared pir motion sensor epitran.\nThey are often referred to as pir, passive infrared, pyroelectric, or ir motion sensors. Motion sensor using passive infrared eeweb community. They are commonly found in gadgets used in homes and businesses and appliances because of this reasons. Passive infrared motion detecting sensors alarm grid. It seems that most small hobbyist sensors use the biss0001 micro power pir. Product data sheet 753cf1 infrascan passive infrared. The rtc advances once every 15 minutes, there are 96 15 minute periods in a day. This sensor has three output pins vcc, output and ground as shown in the pin diagram above.\nAt each detection, the sensor can switch two loads. The presented schematic shows how to build a simple pir motion sensor. Pdf modeling the analog response of passive infrared sensor. Passive infrared sensor pir the term pir is the short form ofthe passiveinfra red. Panasonic passive infrared or pyroelectric pir motion sensors are available in a wide variety of detection types including long distance, wall installation, slight motion, high densitylong distance, horizontally wide, and standard. Improved signaltonoise ratio thanks to a special iv circuit which is used. The thermopile absorbs passive infrared energy from an object at wavelengths between 4 um to 16 um within the enduser defined. Pdf passive infrared pir sensor based security system. Its great for apartments since theres no wiring needed and with the included rf remote control keychain youve got a simple handheld control of your sensor. Pir sensor is motion sensor datasheet, cross reference. Write applications that process sensor data and take specific actions, such as stepper motors, led matrices for digital signage and gaming, etc.\nWhen an intruder comes in the detection range of the pir sensor, it actuates the. Write data acquisition code for sensors such as passive and active infrared ir sensors, microphones, cameras, gps, accelerometers, ultrasonic sensors, etc. Pir stands for pyroelectic infrared radial sensor or passive infrared sensor. It is a low cost sensor which can detect the presence of human beings or animals. Human eye is not capable to see ir radiation, but its possible to use special cameras and sensors to detect it.\nIt seems that most small hobbyist sensors use the biss0001 micro power pir motion detector ic, undoubtedly a very inexpensive chip. The sensor includes light level sensing capability to further enhance the energy savings by preventing automatic control of. The ncs36000 is a fully integrated mixedsignal cmos device designed for lowcost passive infrared controlling applications. The hotter something is the more radiation is emitted. Introduction they use builtin amplifier to detect motion the ir module is specifically used to detect ir radiation body heat from the human body they can also detect other things that generate ir radiation. Rf suppression a lowpass filter in the supply path of the passive infrared sensor, pyroelectric passive infrared sensor snc986 general description the snc 986 is a passive infrared sensor, itself, a passive infrared sensor, a fresnel lense and a light dependent resistor. The leviton 010v passive infrared pir dimming wall switch sensor combines passive infrared technology for 010v onoff dimming control and daylight harvesting. Mini passive infrared pir sensor do you have a project that needs a small motion sensor. When you place an order, we will ship as quickly as possible. A wide variety of dual passive infrared detector options are available to you, such as auto, door, and personal. Pir sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range.\nPassive infrared human detection sensor with builtin amp. This sensor is designed to detect intrusion and to initiate an alarm. The pir sensor the ir sensor itself is housed in a hermetically sealed metal can to improve noisetemperaturehumidity immunity. Product data sheet 753cf2 infrascan passive infrared. At each detection, the sensor switches on the load for an. Functional description due to the, capacitively coupled. Pir sensors detect general movement, but do not give information on who or what moved.\nAlong with the pyroelectic sensor is a bunch of supporting circuitry, resistors and capacitors. Takex is not responsible for damage, injury or losses caused by accident, theft, acts of. Amn31111 datasheet, amn31111 datasheets, amn31111 pdf, amn31111 circuit. They are small, inexpensive, lowpower, easy to use and dont wear out. Pdf abstractin this paper, a pir based security system which saves the.\nThis guide will show you how they work, how to use them, and give you some project examples. The osd10 sensor uses a selfadjusting timer and pir technology to scan for movement and turn lights off after a set amount of time, preventing false triggers. Technical data passive infrared pir motion sensor switch. Pir sensor datasheet, pinout specifications, working. Re200b pyroelectric passive infrared sensor components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. We will understand for what purpose pir sensor is used. How pirs work pir motion sensor adafruit learning system. Panasonic passive infrared or pyroelectric pir motion sensors are available in a wide variety of detection types including long distance, wall installation, slight motion, high. Overview pir sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. Pir sensors allow you to sense motion, almost always used to detect.\nPurchase a passive infrared motion sensor from our site. Panasonic passive infrared human detection sensor with builtin amp. An object whose temperature differs from the background temperature andwhich crosses inside the. The term passive indicates that the sensor does not actively take part in the process, whichmeans, it does not emit the referred ir signals itself, rather passively detects the infrared radiationscoming from thehuman body in the surrounding area. Circuit or controller logic needs to take this initialization period into consideration. Passive infrared motion sensor pir2031 sw pir2031 sw. Twin mirror passive infrared sensor leaf 1004p146 please note. Pir sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range. This chip takes the output of the sensor and does some minor processing on it to emit a digital output pulse from the analog sensor. This motion can be detected by checking for a sudden change in the surrounding ir pattern. Oct 08, 2012 passive infrared sensor or pir is the technology and its usage is in pir camera for security which is used for cost saving and low carry cost with effectiveness. Pirs are basically made of a pyroelectric sensor which you can see below as the round metal can with a rectangular crystal in the center, which can detect levels of infrared radiation.\nIn this article we will discuss first about passive infrared sensor or pir on the first half and pir camera for security on the second half. Builtin pir and coax alarm output makes the camera an ideal choice for. It is a low cost sensor which can detect the presence of. This type of motion detector is very popular, and these devices make for an excellent addition to any security setup. The sensor includes light level sensing capability to further enhance the energy savings by. They are most often used in pirbased motion detectors. Passive infrared radiation pir sensor detects the change in infrared radiation of warm blooded moving object in. In this article we will discuss first about passive infrared sensor or pir on the first half and pir camera for security on the second half passive infrared sensor or pir. The pir mini sensors compact form factor is ideal for smallscale projects and those where the electronics need to be hidden or protected. Infrared thermopile sensor with integrated math engine, tmp007 pdf download texas instruments, tmp007 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. Presence detector using infrared heat radiation for detecting people, detection range 1. The passive infrared pir sensor infrared sensors coursera.\nAmn34112 datasheet pdf 2 page panasonic semiconductor. Pir are often referred to as, passive infrared, ir motion or pyroelectric sensors. Ir led emits light, in the range of infrared frequency. The xy crosssectional diagram shows the detection area. Product data sheet 753cf1 infrascan passive infrared motion. A passive infrared sensor pir sensor is an electronic sensor that measures infrared ir light radiating from objects in its field of view. Used in security systems, lightswitch controls, visitor acknowledgement devices, it senses changes in ir heat patterns. Datasheet 753cf1 infrascan passive infrared motion sensor, single load, flush ceiling mount gimbal application the single load 360 degree infrascan pir sensor detects moving heat sources in its detection range and is suitable for residential and small commercial applications. The term passiveindicates that the sensor does not actively take part in the process, whichmeans, it does not emit the referred ir signals itself, rather passively detects the infrared radiationscoming from thehuman body in the surrounding area.\nMaximize your energysavings while reducing maintenance costs when you automate the onoff switching of your light fixtures. Passive infrared sensor pir working with applications. The device integrates two lownoise amplifiers and a ldo regulator to drive the sensor. Its basic trigger operations, pin connection details, technical specifications and finally we will be looking at some real life applications.\nIn this post we are going to explore the datasheet of pir or pyroelectric infrared radial sensor hcsr501. Passive infrared p motion sensor switch eaton wiring devices stylish passive infrared wallbox sensor provides a convenient energy saving lighting control alternative for 120v applications. Product data sheet 753cf2 infrascan passive infrared motion. When the passive infrared sensor is triggered, it transmits an alarm signal along with video signal to the xvr over coax.\nBy vergel atoc contributed content monday, may 08, 2017 shares. The output of the amplifiers goes to a window comparator that uses. Panasonic, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Amn34112 datasheet28 pages panasonic passive infrared. Overview pir motion sensor adafruit learning system. Amn34112 datasheet48 pages panasonic passive infrared. Description passive infrared human detection sensor with builtin amp. Passive infrared sensor measures infrared ir radiation from objects in its field of view.963 376 396 1524 507 1380 826 1155 1048 957 115 415 284 375 49 523 557 1000 717 1147 1041 602 1091 510 68 1248 155 171 1485 1287 1001 1096 1185 661 646 1199","domain":"optical_engineering"}
{"url":"https://www.ze-fille.com/zooming-with-your-video-camcorder/","date":"2021-03-08T12:19:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178375439.77/warc/CC-MAIN-20210308112849-20210308142849-00077.warc.gz","language_score":0.9394410252571106,"token_count":962,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__88265843","lang":"en","text":"Manufacturers of digital cameras enjoy to advertise their functions to attract buyers. They present a wide variety of promotions such as for instance big megapixel values and ease of use. Of all characteristics that these camer manufacturers provide, probably nothing is more confusing to the client compared to focus feature. There are many things to consider when investing in a camera with zoom.\nFirst thing to consider is the type of zoom. Usually, there are two various kinds of zoom. These are the optical focus and the digital zoom. The optical move is the original zoom that employs refractive contacts or optics to magnify an image. These lenses can either be the main body of the camera or they are available individually and attached with higher priced electronic models. In most cases, visual contacts have high quality and can be used for styles bigger than 4 x 6 inches. The other type of move is called digital zoom.\nElectronic move simulates the zoom aftereffect of the visual contact, just it achieves that magnification in an alternative way. Rather than using optics to magnify an image, electronic zooms digitally crop the picture and increase how big is the pixels in the image. This really is very similar to how one would plant and modify a photograph applying editing computer software, just this is reached with the camera itself. Digital zooms are a good choice if a individual going to use the camera for designs 4 x 6 inches or smaller. Digital zooms may also be good for those who would rather alter pictures with the camera it self as opposed to expensive photograph editing software.\nIt can be important to understand a little about how the move rating is presented. For both visual focus and electronic zoom, the zoom magnification is shown as several and an “X “.Like, a camera with five situations zoom could be shown as 5X. An extremely significant aspect to know for a camera customer is that not totally all camera zoom numbers are comparable. The reason for this really is that magnification is presented as a multiplier of their cheapest move setting and this might be various for every camera. As an example, a camera with a 35 mm minimal magnification and a 5X move could bring about 175 mm optimum zoom. But, a camera with a 28 mm minimal magnification and a 5X focus could have a 140 mm optimum magnification. See the specifications cautiously when seeking to determine the minimum and optimum magnification.\nWith electronic zoom you really use built-in software in the camera to determine a portion of the picture that you are involved in. Once plumped for the application crops the rest of the image and enlarges the area you decided to match the complete photograph frame https://www.bcmone.com/blog/voice-for-teams-the-solution-for-zoom-woes/.\nThe method of enlarging the zoomed region can also be called extrapolation. The camera computer software must estimate new values for the pixels that were cropped in order to cause a full body photo. The downside of the electronic process is that the enlarged photo quality is lower than the first picture taken.\nIt is straightforward the standard loss having an example. Enables believe that you’ve a 2MP (2 megapixels) camera. You place the camera and choose that you intend to focus in 2X. You work the digital zoom application and choose a 2X zoom. To achieve this move the camera crops half of the image and enlarges the other half to create a 2X zoom effect. In the process a 1MP region is removed (the half that’s cropped). The other 1MP region is enlarged in a procedure that copies every pixel once to produce a 2MP photo. Even though the brand new photograph seems to incorporate 2MP it surely includes only 1MP of information that has been replicated once. The end result is a photograph with a good equivalent to a 1MP photo.\nYet another component to consider when getting a contact lens or even a camera with a contact lens is the negative aftereffects of the zoom. While focus features can make some very nice photos, they can also trigger problems. The initial problem is shakiness. As you utilize more magnification, images are much harder to keep still. This can lead to blurry photos. The next problem is shutter speed. As more magnification can be used, especially in low mild, it takes lengthier for the camera to concentrate and that may result in whether overlooked shot or blurry photos.\nTo summarize, getting a digital camera with focus is advisable if you understand the basics of camera zoom. Use the above information when purchasing a camera with move in order that you may make an informed decision. There is sufficient extra information regarding getting a digital camera, and I encourage you to help keep studying that crucial topic.","domain":"optical_engineering"}
{"url":"https://beta.elsevier.com/events/conferences/sen-yang","date":"2023-10-04T20:44:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511406.34/warc/CC-MAIN-20231004184208-20231004214208-00611.warc.gz","language_score":0.9295751452445984,"token_count":143,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__291700587","lang":"en","text":"Presentation title: Quantum sensing based on optically stable coherent color centers in diamond generated by high-temperature annealing\nProfessor Sen Yang got his B.S. and Ph.D. from Tsinghua University and UC San Diego respectively. He is currently an associate professor in HKUST.\nHis group is working on quantum effects in semiconductor materials. His research achievements include the first directly verification of BEC in exciton gas, optical quantum memory based on single nuclear spin, the first demonstration of quantum sensing with color center in high pressure instrumentation, a novel invention of laser writing, extension of decoherence times of color centers and quantum signal filter based on quantum nature.","domain":"optical_engineering"}
{"url":"https://pyramexeyewear.co.uk/pyramex-ever-lite-amber-h2x-safety-glasses","date":"2021-03-06T04:23:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178374391.90/warc/CC-MAIN-20210306035529-20210306065529-00154.warc.gz","language_score":0.7012917995452881,"token_count":359,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__17678250","lang":"en","text":"Pyramex Ever-Lite Amber H2X Safety Glasses\n- H2X Coating Technology\n- 99.9% UV Protection\n- Stylish, Comfy & Scratch-resistant\n- Soft nosepiece for a snug fit.\n- Semi-frame & slim co-material temple design for lightweight spectacle – 22 gm.\n- Offers a clear panoramic view without obstruction.\n- 8 base wraparound lens provides full front side protection.\n- Scratch-resistant, polycarbonate lens provide 99.9% of UV protection.\n- H2X provides anti-fog, anti-scratch and anti-static protection. Even after repeated cleanings, H2X will continue to be effective because the coating is bonded to the lenses. The H2X anti-fog coating is made from non-hazardous environmental components. The coating is waterproof with excellent scratch resistance.\nClosest Point Between Lens: 11mm\nClosest Point Between Temple Tips: 70mm\nLens Base: 8 Curve\nLens Size Diagonal: 79.6mm\nLens Size Vertical: 43.3mm\nLens Thickness: 1.8mm\nOverall Length (Lens-Tip): 163.5mm\nOverall Width (Hinge-Hinge): 134.3mm\nVisible Light Transmitted\nUVA, UVB Blocked\nBlue Light Blocked\nGrey Lens: Commonly used in outdoor applications. Offers protection from excessive glare.\n|Custom Status||Out of Stock|\n|Features||Co-Injected Temples, Rubber Nosepiece|\n|Certifications||ANSI Z87.1, CE EN166, CAN/CSA Z94.3|","domain":"optical_engineering"}
{"url":"https://www.dlccladding.com/service/laser-cladding-materials/","date":"2020-01-20T13:22:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250598726.39/warc/CC-MAIN-20200120110422-20200120134422-00028.warc.gz","language_score":0.8714704513549805,"token_count":203,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__82036677","lang":"en","text":"DLC Cladding LP specializes in diamond laser cladding with our proprietary diamond powder and encapsulated laser.\nBut, to ensure your tools and equipment meet the specifications of your particular application, we also offer cladding with tungsten carbide, Inconel, or combinations of materials.\nCladding with tungsten carbide or Inconel uses the same advanced techniques and encapsulated laser as our exclusive diamond laser cladding process.\nAutomated computers are used to guide the laser over the workpiece as precise amounts of tungsten carbide or Inconel powder are dispersed.\nAs the laser moves over the workpiece the focal point of the laser creates a melt pool on its surface. When the dispersed powder comes in contact with the hot surface, the powder melts and mixes with the melt pool.\nThen, as the laser moves away the base metal and the powder cool rapidly, resulting in a strong metallurgical bond with minimal dilution and a very thin heat affected zone.","domain":"optical_engineering"}
{"url":"https://science.brightfocus.org/individual/kazuhiro-kurokawa-phd","date":"2024-04-14T04:33:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00095.warc.gz","language_score":0.9224380850791931,"token_count":249,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__20731243","lang":"en","text":"Dr. Kazuhiro Kurokawa, an Assistant Scientist at Discoveries in Sight Research Laboratories of the Devers Eye Institute, Portland, Oregon, is an experienced optical engineer in ophthalmic imaging technologies such as optical coherence tomography and adaptive optics. Dr. Kurokawa completed his Ph.D. and Post-Doctoral training in Professor Yasuno’s lab at the University of Tsukuba, Japan, before moving to Bloomington, Indiana, to join Professor Miller’s lab at Indiana University Schol of Optometry as a Research Associate. In 2021, Dr. Kurokawa joined Legacy-Devers Eye Institute, working with Dr. Brad Fortune and Discoveries in Sight Scientists, to establish a new optical imaging lab from the scratch. The work involves various research areas, including optical engineering, ophthalmic technology, biomedical optics, vision science, and clinical research, helping develop his unique and specialized skills. Dr. Kurokawa’s long-term goal is to improve eye-imaging technology to better define disease onset and retinal health in the living eye and ultimately improve clinical outcomes in treating eye disease.\nGood Samaritan Foundation (LHS)","domain":"optical_engineering"}
{"url":"https://laser-cataractsurgery.com/restor-iol.html","date":"2020-09-29T10:11:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401641638.83/warc/CC-MAIN-20200929091913-20200929121913-00613.warc.gz","language_score":0.9104272127151489,"token_count":518,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__105799607","lang":"en","text":"The AcrySof® ReSTOR® is an FDA-approved multifocal intraocular lens (IOL)– an artificial replacement lens that can help most people with cataracts improve their vision and image quality.\nAvailable at our Huntington Beach office, the AcrySof® ReSTOR® multifocal lens goes beyond a monofocal lens, which is limited to one focal point. AcrySof® ReSTOR® has been designed using patented apodized diffractive and refractive technologies. The unique lens technology distributes light to multiple focal points, thus minimizing visual disturbances. The result is an increased range of vision and a decreased dependency on corrective lenses.\nIn addition, AcrySof® ReSTOR® has a special optical feature that mitigates the halo effect that occurs with multifocal lenses–a detail that differentiates it from other multifocal lenses featured in our Orange County office.\nMultifocal intraocular lenses have revolutionized the treatment of cataracts, but they may not be for everybody.\nAcrySof® ReSTOR® lenses may be an excellent option for you if:\nYou are not an ideal candidate for AcrySof® ReSTOR® if:\nAt Beach Eye in Orange County, we specialize in intraocular lens replacements. Our cataract and artificial lens specialists can examine your eyes at our Huntington Beach practice and determine whether AcrySof® ReSTOR® is an appropriate option for you.\nAcrySof® ReSTOR® lenses may greatly benefit those who lead an active lifestyle and want to lessen the inconvenience of wearing corrective lenses. In clinical studies, 80% of AcrySof® ReSTOR® recipients stated that they did not need glasses after their lens replacement. (In comparison, only about 10% of those receiving monofocal lens replacements reported being glasses-free.)\nAcrySof® ReSTOR® lens replacement is considered a safe procedure and complications are rare. However, lens implantation carries similar risks associated cataract surgery.\nIf your vision has deteriorated due to cataracts, contact Beach Eye Medical Group in Huntington Beach. Our qualified eye care specialist is experienced with the most advanced treatments and can review the benefits and risks of intraocular lens implantation procedures. Schedule your consultation with our Orange County cataract experts.\nWe serve patients in Huntington Beach as well as other Orange County communities, including Newport Beach, Irvine, Fountain Valley, Westminster, Costa Mesa, and Tustin.","domain":"optical_engineering"}
{"url":"http://www.hifiplus.com/articles/ces-dolby-vision-for-led-backlit-lcd-displays-to-ship-in-early-2009/","date":"2019-10-16T05:52:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986664662.15/warc/CC-MAIN-20191016041344-20191016064844-00246.warc.gz","language_score":0.8837279677391052,"token_count":492,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__205033307","lang":"en","text":"While others have had similar technology, Dolby Vision will become available shortly. Here is the full release:\nDolby Vision Available in First Quarter Calendar 2009\nSIM2 prototype LCD with Dolby Vision displayed at CES\nLas Vegas, January 8, 2009—Dolby Laboratories, Inc. (NYSE: DLB) announced today that Dolby® Vision, part of its suite of High Dynamic Range (HDR) technologies, will be available in Q1 2009. In addition, the company is displaying a SIM2 prototype LCD display that features the Dolby Vision reference design at its CES booth.\n\"With Dolby Vision, next-generation LCD manufacturers will be able to provide outstanding contrast combined with crisp brightness to deliver picture quality that can achieve real-world visual perception of depth, detail, and color,\" said Bharath Rajagopalan, Director, HDR Marketing, Dolby Laboratories. \"The SIM2 LCD prototype display leverages Dolby Vision to manage LED local dimming technology and shows what manufacturers can achieve by implementing this technology.\"\nDolby Vision features a proprietary algorithm that manages LEDs behind the liquid crystal panel. Each LED is controlled individually in concert with the image on display. By selectively turning off areas of the backlight behind black areas in scenes, Dolby Vision allows the area to become truly black. Dolby Vision also has the ability to selectively brighten areas of the backlight behind bright areas allowing them to truly radiate.\nDolby worked with SIM2 to develop an HDR-enabled LCD flat-screen prototype display that features the Dolby Vision reference design. Using Dolby Vision, SIM2 created a ground-breaking prototype capable of delivering spectacular images. The prototype display uses a Xilinx Virtex® Field Programmable Gate Array (FPGA) chipset approved by Dolby. The Xilinx® FPGA chipset is available today enabling fast time to market for displays using Dolby Vision's complex HDR algorithms.\n\"Dolby Vision delivers images so realistic that the display becomes a window into the world,\" said Domenico Toffoli, Director, Professional Systems Business Unit, SIM2. \"The SIM2 prototype display is truly a benchmark for what manufacturers can achieve with the HDR technology Dolby has developed\".\nDolby will showcase the SIM2 prototype display for Dolby Vision in booth number 20901 during the 2009 International CES® Show in Last Vegas, Nevada.","domain":"optical_engineering"}
{"url":"http://www.menandwomensunglasses.com/difference/","date":"2019-07-17T01:22:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525004.24/warc/CC-MAIN-20190717001433-20190717023433-00009.warc.gz","language_score":0.9466367959976196,"token_count":768,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__175440644","lang":"en","text":"Sunglasses is really a very good thing, even if the person looks flat, the temperament is immediately improved after wearing sunglasses, how to look cool! However, there are too many styles and brands of sunglasses, there are dozens of dollars, there are hundreds of dollars, then there is a very interesting question - what is the difference between dozens of dollars and hundreds of dollars of sunglasses?\nUltraviolet light is not equal to glare\nWhether it's a few dozen dollars of sunglasses or a few hundred dollars of sunglasses, it has the function of dimming the outside light. But remember, darkening the light doesn't mean blocking UV rays. Some sunglasses can also reduce the glare, but not the UV rays.\nUltraviolet light refers to the sun's rays with a wavelength between 200 nm and 380 nm. Therefore, any lens that can prevent the light of 380 nm or higher can effectively prevent ultraviolet rays. At present, one of the more common indicators is \"UV400\". If the regular brand has the \"UV400\" logo, then these sunglasses has no problem with UV protection.\nWhat is the biggest hazard of inferior sunglasses?\nSome people may ask, although the inferior sunglasses are cheap, they are better than not wearing them? wrong! If the quality of the sunglasses is unqualified, then it is better not to wear them. There are two reasons for this:\n1, permanent eye injury\nBring sunglasses, the light is dimmed, so the pupils of the person will increase, but because your sunglasses cannot block the ultraviolet rays, it is equal to a large number of ultraviolet rays to ingest the large pupil, which is more than hurting the eyes! Moreover, the damage of ultraviolet rays to the eyes is cumulative and irreversible.\n2, damage to vision\nThis is mainly a question of workmanship. General glasses, whether it is sunglasses or other glasses, have a reasonable optical index design, including sphericality, prismatic degree, etc. If the design is unreasonable, it is easy to visually deform the object, causing the eyes to double fatigue, and the vision will decrease in the long run.\nGood sunglasses are completely UV-resistant in function; optically reduce visual distortion and protect eyesight; comfortable and strong in wearing, and high design and brand power, so there are a large number of people who are willing to pay a high price!\nA few tips on wearing sunglasses\n- is not the polarized glasses is the best, polarizers are only suitable for driving, generally exported to foreign countries are mostly PC tablets, high-end Ray-Ban tempered glass, in fact, are not polarized.\n- Do not wear sunglasses inside or in dark places. Although cool is cool, the pupils will always enlarge, causing fatigue and affecting vision.\n- If myopia has sunglasses, it is best to match one with your own glasses. This can't be done, especially in long-term wear.\n- In the color of sunglasses, in addition to personal preferences, there is some knowledge in it:\nGray lenses - reduce brightness, but do not change the true colors of the color.\nBrown and amber lenses - reduce the blue portion of the sun, thereby reducing the haze effect caused by blue light, but it is more likely to cause the original color change of the object than the gray coating.\nYellow lenses - more to reduce the fog caused by blue light, so the scenery will become more clear and sharp, but it is also more likely to cause the original color of the object.\nGreen Lens - Ability to filter some blue light to reduce glare and increase the contrast between objects.\nRose Red Lens - If you like water or outdoor sports, it is best to wear this lens because it has a very good contrast on a blue or green background.","domain":"optical_engineering"}
{"url":"https://woodies.com/collections/picks-of-the-month/products/blue-light-blocking-glasses-for-sleep-enhancement","date":"2023-02-07T01:30:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500368.7/warc/CC-MAIN-20230207004322-20230207034322-00208.warc.gz","language_score":0.9527927041053772,"token_count":115,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__206363518","lang":"en","text":"ENJOY WEARING WOODIES\nThe lightweight wood offers a comfortable fit that is durable and sturdy at the same time. Our unique stainless-steel, double-spring hinges are designed to keep their shape year after year.\nThe lenses are specially designed so that they are both dark and polarized, offering 100% UVA/UVB protection even in intense lighting conditions. These glasses are stylish, durable, and natural. Each pair includes a durable black carrying case, a microfiber lens cleaning cloth and a wood guitar pick!","domain":"optical_engineering"}
{"url":"https://www.esportswall.com/how-to-use-a-rifle-scope/","date":"2023-12-07T16:05:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100677.45/warc/CC-MAIN-20231207153748-20231207183748-00494.warc.gz","language_score":0.9387547969818115,"token_count":1917,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__287753546","lang":"en","text":"If you are looking for a way to make sure that you get the best results from your rifle and aiming device, then you’re going to want to find out how to use riflescope turrets. There are a few things that you’re going to want to keep in mind when doing so. You’re going to want to know about the distance that you’re aiming for, the magnification that you’re using, and the crosshairs that you’re adjusting. Also, you’re going to need to think about how to use a scope that’s versatile enough to perform many different tasks.\nRifle scope magnification is an important aspect of selecting the right riflescope for your needs. It will affect the size, weight, and overall performance of your scope. You need to find a range of magnification that matches your shooting distance, your eyesight, and your personal preference.\nThe higher the magnification, the more difficult it will be to view your target. Also, the more magnification you get, the smaller your field of view. This can cause a lot of frustration. High magnification also adds to the weight of your scope. Ideally, you should try to keep your rifle as light as possible.\nThe best range of magnification is 3-15x. Most hunters don’t need more than this. However, you should always consider your budget and the type of shooting you’re doing. For example, if you’re hunting in open country, you’ll need a scope with a larger magnification.\nYou’ll also need a high-quality glass to ensure you see bright images. This is especially important for long-range shots. Without a quality glass, your image will be blurred.\nVariable power scopes are a great choice for shooters looking for extra versatility. With a variable scope, you can change the magnification to suit your shooting distance. Some hunters prefer the low magnification of a fixed scope because it offers a wide field of view. A variable scope also allows you to change the lens to increase or decrease the brightness of the image.\nHigher magnification makes parallax more apparent. Parallax usually comes as a floating reticle. When you are using a scope, it’s important to use a side focus in order to correct parallax.\nChoosing a rifle scope with the proper magnification is important to achieving a clear picture of your target. Choosing the wrong magnification can have serious effects on your shooting. In fact, it can cause you to miss your target.\nIf you have good eyesight, you might not even need a scope with a high magnification. On the other hand, if you have a weaker eyesight, you might need a high magnification.\nEye relief distance\nWhen it comes to air rifle scopes, eye relief is one of the most important parts of buying the right optic for your specific needs. A rifle scope with adequate eye relief will enable you to get a complete field of view.\nThis means that your vision will be unobstructed, which can make engaging targets easier. In addition, a rifle scope with good eye relief will give you the best light transmission, which is vital to your shooting success.\nThe best way to measure your eye relief distance is to do a quick test. You can do this by mounting your rifle on a table or bipod and then adjusting the scope to its most optimal position. Once you’ve achieved the correct position, you can then read through the scope to see what you’ve got.\nFortunately, most modern scopes have generous eye relief. In fact, most manufacturers offer a range of options, from 1.5″ to 4″ of eye relief. If you’re shopping for a new rifle, you can check out what the different models have to offer.\nWhen it comes to eye relief, it’s also a good idea to consider whether or not you plan on wearing glasses. Shorter reliefs may not be suitable for those with a pair of prescription lenses. On the other hand, longer reliefs can be more comfortable for those who are wearing glasses.\nThe purpose of eye relief is to prevent image disturbances, so you should try to find a scope that provides the smallest possible obstruction. An obstruction in your sight picture can be a fuzzy or dim image or an obstructed field of view.\nIn order to properly measure your eye relief distance, you can use a tape measure or a ruler. Measure the distance from the tip of your eye to the rear lens objective.\nWhile you’re at it, you should also check the specs for your rifle scope. Many manufacturers will provide information about the scope’s eye relief on their website. Some are even listed as a feature on the product page.\nAdjusting the crosshairs\nUsing a rifle scope is a great way to increase your chances of predicting the point of impact of a bullet. However, it can be difficult to accurately know where to aim at any distance. When you have a rifle scope, there are several ways to adjust the crosshairs. These adjustments will help you to get the eye where you need it.\nParallax adjustment: This is a correction that will correct the reticle out of focus with respect to the focal plane. Most modern scopes offer this feature. It is an important feature to know about. You may need to use a finer correction to get the reticle to be in perfect focus.\nParallax adjustment is usually simple. To find out what the parallax correction is, you need to understand how the scope works. The best way to do this is to look through the optic and see the reticle. As you are looking through the scope, you should shift your head to get a better view of the reticle.\nOcular focus adjustment: Similar to parallax, this is an adjustment that will focus the reticle on your eye. It is usually easy to do, but can be tricky if you are not accustomed to using a scope.\nMagnification adjustment: There are two ways to adjust the magnification on a scope. First, turn the knob on the scope. Turning this knob one position moves the reticle about 1/4 inch at 100 yards. While you’re doing this, you’ll also want to adjust the objective. With the objective, you can adjust the power of the reticle.\nWindage adjustment: Windage adjustment changes the horizontal path of the bullet. Some shooters prefer to use this feature to adjust the power of their reticle.\nThe best scopes allow you to adjust the parallax. Parallax adjustment is only relevant if you are shooting at a target. If you are at a range of less than 150 yards, this won’t be an issue. However, if you are at a range of more than 150 yards, you need to set your parallax correction dial to infinity.\nUsing a versatile scope for multiple applications\nA versatile rifle scope can be used for a number of purposes. You should choose a scope that is suitable for the type of firearm you intend to use. It is also advisable to choose a durable scope. If you plan to use the scope in a tactical setting, then a mil-dot reticle may be a good choice. However, a simpler MOA reticle is better suited for hunting and shooting at shorter ranges.\nThe Tango-MSR LPVO 1-6x24mm AR scope is a great choice for those who are looking for a versatile scope. This rifle scope features a durable design, waterproof construction, shockproof, and a wide range of magnification.\nThe reticle in this rifle scope is perfect for hunters and competition shooters. The crosshair is easy to read and the 0.5-mil lines on both axes make it possible to quickly take a shot at moving targets.\nFor close-range shooting, the reticle is a bit slow to adjust. However, this is not a problem for most competition shooters. Most of them do not require the scope parallax adjustment.\nWhile the reticle is not perfect for long-range shooting, it is ideal for estimating wind calls. In addition, the reticle is a popular choice for tactical applications. Nevertheless, most people do not care about the MRAD vs. MOA debate.\nThe Vortex Optics Viper PST 1-4x24mm Riflescope is an upgrade from the Strike Eagle. It has better glass and crisper adjustment clicks. Moreover, the reticle is a second focal plane MOA reticle.\nThis rifle scope is well-made and the glass is clear and durable. However, the elevation knob was not user-friendly. As a result, it was very difficult to change it.\nThe Vortex Viper HST 4-16x 44mm is another option for those who want a versatile scope. It features a four-fold magnification, a MOA reticle, adjustable parallax from 10 yards and XRPlus anti-reflective coating. Besides, this rifle scope is very reliable.\nIf you are on a budget, the Leupold VX-3HD 3.5-10x40mm Rifle Scope is a great choice. With a reticle that is simple and useful, this scope will allow you to hit targets anywhere.","domain":"optical_engineering"}
{"url":"https://worldofvision.gr/product/gyaliailiou-oo93860338/?lang=en","date":"2022-12-09T09:37:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711394.73/warc/CC-MAIN-20221209080025-20221209110025-00379.warc.gz","language_score":0.7181484699249268,"token_count":326,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__208348683","lang":"en","text":"Oakley Sunglasses – OO9386 0338\nUnisex OO9386 0338 Oakley sunglasses are made and special designed for multiple speed sports. They have a light and stable frame in matte black withUnobtainium® contact points and iridescent lenses.\nPlutonite® lenses offer superior UV400 protection and anti-reflective protection, while the Prizm technology provides unprecedented control of light transmission so that colors can be precisely adjusted to maximize contrast and enhance visibility. The Matter ™ frame enhances comfort and excellent fit.\nMake a unique choice that will take off your athletic performance and will offer you comfort and safety during demanding trainings.\nLens diameter138 mm\nThe package includes a case for protection & storage of your glasses and a microfiber cleaning cloth.\n1 in stock\nΣυσκευασία δώρου για όλους, γιατί σας αξίζει!\nΔωρεάν μεταφορικά & επιστροφές!","domain":"optical_engineering"}
{"url":"https://www.solarcontroller-inverter.com/news/How-much-energy-can-solar-modules-absorb.html","date":"2023-09-25T00:29:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.96/warc/CC-MAIN-20230924223409-20230925013409-00753.warc.gz","language_score":0.9077144861221313,"token_count":719,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__156401061","lang":"en","text":"How much energy can solar modules absorb?\nSolar energy reaches the upper limit of the Earth's atmosphere, about 1367W per square meter. The current most efficient PV module is about 21%, which means that the maximum power that can be produced in a square meter is 210W, which is 1157W in the middle. went.\n1. Half is absorbed and reflected by the atmosphere\nThere are thousands of kilometers of the atmosphere above the earth, divided into troposphere, stratosphere, intermediate layer, thermal layer and outer layer. About 30% of the sun's energy is reflected into space, and about 19% of the energy is absorbed by the clouds and the atmosphere. It became wind and thunder and rain, and it took about 51% to reach the surface of the earth. That is to say, the solar energy reaches the surface of the earth, the average power per square meter is about 690W, and the standard test condition of the component is 1000W per square meter. The illumination in most places cannot reach this condition, of course, in a few. Where the irradiance may exceed 1000W at a particular time.\n2, the battery component absorbs visible light energy\nSpectral knowledge of sunlight: Sunlight is a mixture of continuously varying wavelengths of light, containing light of various wavelengths: infrared, red, orange, yellow, green, blue, enamel, purple, ultraviolet, etc. Red, orange, yellow, green, sputum, blue, and purple are visible light, visible to the human eye. The region with the largest radiant energy is in the visible light portion, accounting for about 48%, the radiant energy in the ultraviolet spectral region accounts for about 8%, and the radiant energy in the infrared spectral region accounts for about 44%. In the entire visible spectrum, the maximum energy is in the wavelength. At 0.475μm, the solar cell can only absorb part of the energy and convert it into electric energy. The ultraviolet spectrum cannot be converted into energy, and the long wavelength in the infrared spectrum can only be converted into heat.\nAt present, the component can only absorb the energy of the visible part. If it can absorb, the maximum efficiency can reach about 48%, but no battery bandwidth of any technology can be so wide. When the forbidden band width is 1.0~1.6eV, The maximum conversion efficiency of the cell is below 44%, and the ultimate efficiency of the crystalline silicon cell is predicted to be 29%. In March 2017, the Japanese chemical manufacturing company developed a crystalline silicon solar cell with a conversion rate of 26.3%.\n3, component packaging loss\nAfter being packaged into components, the component area is larger than the total area of the battery, and the total area efficiency is lost by 2%; secondly, the light absorption absorption of the photovoltaic glass is lost by 0.5%; the light transmission absorption loss of the EVA film is 0.5%; Third, the resistance loss of the interconnect strip/sink strip is 1 percentage point. A total loss of about 4 percentage points. With the continuous development of component technology, multi-main gate battery components, double-glass aluminum-free bezel components, and MWT back contact without main gate battery components are now available, which can reduce component package loss to less than 1%.\nDisclaimer: The content is partly from the Internet. For the purpose of transmitting more information, it does not mean agreeing with its views or confirming its description. Article content is for reference only.","domain":"optical_engineering"}
{"url":"https://eyecandywears.com/lenses.html","date":"2023-09-27T02:55:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510238.65/warc/CC-MAIN-20230927003313-20230927033313-00497.warc.gz","language_score":0.905456006526947,"token_count":384,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__45309157","lang":"en","text":"Serving Latest In Eyecare Technology\nA contact lens is considered a medical device that can be worn to correct your vision, or for cosmetic or curative reasons. This thin lens is placed directly on the surface of the eye. People generally wear contact lenses to avoid wearing eyeglasses or they would like to change the look of their eye colour.\nIf you are looking for the best, high quality and affordable contact lenses from a vast group of branded lenses, please feel free to contact us.We carries the following types of contact lenses:\n- Weekly Disposables\n- Monthly Disposables\n- Daily Disposables\n- Lenses for Astigmatism\n- Colour Lenses\n- Bifocal & Multifocal Lenses\nBasic guidelines for contact lens\nGently shake your lens case containing the storage solution, to loosen the contact lens should it be stuck. (Don't try pulling at the lens with your finger, or you might damage it.)\n- Slide the lens out of its case and into the palm of your hand. Rinse thoroughly with the appropriate contact lens solution.\n- Place the contact lens on the tip of your index or middle finger, which should be dry or mostly dry.\n- With the fingers and thumb of your other hand, simultaneously pull up on your upper eyelid and down on your lower eyelid.\n- Position the lens on your eye while looking upward or forward, whichever you find to be easier. You also can apply the contact lens by placing it on the white of the eye closest to your ear.\n- Gently close your eye, roll your eyes in a complete circle to help the lens settle, and then blink.\n- Look closely in the mirror to make sure the lens is centered on your eye. If it is, the lens should be comfortable and your vision should be clear.","domain":"optical_engineering"}
{"url":"https://www.binaa-syria.com/News/Optical-coating-materials.html","date":"2023-06-05T20:30:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652161.52/warc/CC-MAIN-20230605185809-20230605215809-00707.warc.gz","language_score":0.926747739315033,"token_count":1842,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__31079977","lang":"en","text":"Optical coating materials\nOptical covering refers to the process of layering one (or more) steel (or dielectric) film on the surface of optical components. The function of layer on the surface of optical components is to lower or raise the representation, light beam splitting up, shade splitting up, filtering and polarization of light.\nThe typically made use of finish methods are vacuum cleaner covering and electroless finishing.\nConcept of optical finish:\nVacuum finish mainly describes the finishings that need to be carried out in a higher vacuum, consisting of vacuum ion dissipation, magnetron sputtering, MBE molecular light beam epitaxy, PLD laser sputtering deposition and so on. The plated material is made right into a substratum and also the electroplated material is made use of as a target or medical product. The substratum is in the exact same vacuum as the target.\nThe dissipation covering is usually the target of heating to ensure that the surface area components vaporize in the form of cost-free radicals or ions and are deposited on the surface of the substrate by film-forming technique (spreading island structure-trapezoidal structure-layered development).\nFor the sputtered finishing, it is easy to understand that the target product is bombarded by electrons or high-energy lasers, and the surface area components are sputtered in the kind of complimentary radicals or ions, as well as lastly transferred on the substrate surface to form a thin movie.\nThe feature of the optical movie is that the surface area is smooth, the user interface between the layers is geometrically fractional, and the refractive index of the film can jump at the interface, however it is continual in the film, which can be a transparent medium or an optical film.\nAbsorption medium: it can be typical consistent or non-uniform. The functional application of the movie is much more complex than the excellent movie, since the optical and also physical properties of the movie differ the mass material, and also its surface and also interface are harsh, which leads to the diffuse spreading of the beam. the shared penetration in between the films creates a diffusion interface, which develops the anisotropy of the movie due to the growth, structure and also stress and anxiety of the film, and the film has a complex time effect.\nThe typical optical coating products are as adheres to:\n1. Metal (alloy): germanium, chromium, aluminum, silver, gold, and so on.\nRare-earth element, safe as well as non-radioactive, mostly utilized in semiconductor market, plastic industry, infrared optical devices, aerospace industry, optical fiber interaction and more. The light transmission variety is 2000NM muri-14000NM judicial nasty 4 or even more.\nOccasionally made use of in spectroscopes and normally made use of as a \"colloid layer\" to enhance adhesion, the colloid layer might be within the variety of 550NM, yet under the guide of aluminum mirror film, 30NM is an efficient worth to improve bond.\nIn the ultraviolet region, it has the best reflective efficiency among usual metals, and the reliable thickness of the movie is greater than 50NM.\nIf the evaporation rate is quickly enough and the substratum temperature level is not really high, silver has the very same excellent reflectivity as aluminum, which is the outcome of enormous accumulation at broadband and low temperature level, which results in higher absorption.\nOver infrared 100nm wavelength is the material with the greatest reflectivity among the known materials.\nUtilizing electron gun evaporation, the residential properties of the material vary with the movie density, as well as the refractive index has to do with 1. 8% at 500nm. It is very popular as an aluminum protective film, especially relative to the high occurrence angle in the 800-12000nm area, it can be utilized as a protective movie for glasses as well as is revealed to moisture for 1 day.\nMaking use of high-density tungsten boat evaporation, cerium dioxide is vaporized on a 200 °& deg; C substrate to obtain a refractive index of regarding 2.2. there is an absorption band in concerning 3000nm whose refractive index modifications dramatically with the adjustment of substratum temperature. Nylon 2.35 (500nm) low absorption thin films can be gotten by oxygen ion plating.\nThe refractive index is the light transmission range of 2.21500 nm. As a result of its high refractive index and relative suppleness, individuals like to use this high refractive index material for anti-reflection film, splitter film, cold light film, filter, high reflection film, glasses movie, thermal mirror and so forth.\nAnemic clear crystal, high melting factor, high solidity and also good chemical stability. High purity, utilizing it to prepare premium quality Si02 finish, excellent dissipation state, no collapse point. According to the use demands, it can be split into ultraviolet, infrared and visible light. If the stress is expensive, the film will certainly have pores as well as fragile, on the contrary, the movie with also reduced pressure will certainly be soaked up as well as the refractive index will boost.\nThe white heavy crystal has high refractive index and high temperature resistance, stable chemical homes and high pureness. There are numerous reasons for using it to prepare excellent quality zirconia layer without damaging point, which influences the passage of one plane lens. The roughness of the mirror will create the diffusion of the occurrence light and also decrease the light transmittance of the lens. In addition, the optical turning of the product will additionally create a few of the incident light sources of which the regularity dissipation is particularly severe. For example, a product that takes in red light looks environment-friendly. However, these variables of bad handling can be gotten rid of as high as possible.\nThe refractive index is about 2.0 C when it is evaporated by electron weapon on the substratum at 150C. Stable refractive index of 2.05-2.1 can be acquired by oxygen ion helped plating. HFO2 is far better than SiO2 as the outer layer of aluminum protective movie in the 8000-12000NM area.\nAs an antireflective movie with 1x4 wave density, it is widely utilized as a glass optical film, and also the transmission efficiency of regarding 120NM actual ultraviolet radiation to the middle infrared area of about 7000nm is great.\nCalcium fluoride and also barium fluoride.\nTheir constraint is the lack of total density. Passage shifts to longer wavelengths at heats, so currently they can just be made use of in infrared films.\nIt can be used as a high refractive index product in UV. When it is used in 300nm, the refractive index decreases when it comes into contact with molybdenum, tantalum as well as tungsten boats, so platinum or ceramic dishes are needed.\n4. Other compounds.\nThe light transmission range with refractive index of 2.35400-13000m has good stress and great ecological toughness. Primarily utilized in spectroscopic film, cold light movie, ornamental movie, filter, high reflective movie, infrared film.\nIt is a sort of IR material with high refractive index. As a thin film material, it is clear in 300-- 4000NM. In the infrared area, the material is sublimated. The substrate temperature level of 250C is helpful. Health and wellness avoidance is necessary. It works well when it is up to 40000NM. Other materials are usually utilized in more than average 14000NM infrared side.\nSilicon dioxide Price\nThe rate is influenced by many aspects including the supply and demand in the market, industry patterns, economic task, market view, and also unforeseen occasions.\nIf you are searching for the latest SiO2 rate, you can send us your query for a quote. (email@example.com)\nSilicon dioxide Supplier\nModern Technology Co. Ltd. is a trusted SiO2 producer as well as SiO2 vendor with over 12-year-experience. We deliver our items all over the globe.\nIf you are trying to find top quality SiO2 powder, please feel free to contact us and also send a query. (firstname.lastname@example.org)","domain":"optical_engineering"}
{"url":"http://noticeboard.us/understanding-4/","date":"2020-01-22T08:57:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250606872.19/warc/CC-MAIN-20200122071919-20200122100919-00180.warc.gz","language_score":0.9419470429420471,"token_count":495,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__73441305","lang":"en","text":"Internet is valued a lot in peoples’ lives. Nowadays, most businesses have access to the internet. Internet is very important in peoples’ homes. People used to operate their businesses using traditional methods. These days, businesses are using the internet to promote their goods and services. Technology has impacted our lives positively. Most businesses use internet access for everything. It requires one to have internet access so that you can operate it. Talking to customers through emails, promoting their products and services can only be done through the internet. With the internet, you can download songs and videos. There are some people that use the internet to work at home. Because of the internet, there has been a growth of video streaming services. The internet has also led to the growth of social media. Because of many people using the internet, there has been an increase in fiber optic providers. Fiber optic internet’s speed is known to be better than other connections. There are benefits of using fiber optic internet.\nThe first benefit of using fiber optic internet is speed. Using fiber optic internet ensures that when you are downloading a movie, it is not interrupted. The good thing with fiber optic internet is that it can handle more users and data at a high speed. With fiber optic internet, this does not happen. With the normal internet cable, downloading will be easy but when it comes to uploading, it will take a lot of time. With the normal internet cable, streaming will be hard because of the slow internet. With fiber optic internet, you will enjoy playing the game because there will be no interruptions. Using fiber optic internet is a benefit since you can connect multiple devices at the same time and there will be no hiccups. It is very difficult finding a good fiber-optic provider. This article consists of the tips to be followed when choosing a fiber-optic provider.\nThe first factor to consider when choosing a fiber optic provider is availability. Lack of service provider will negatively affect your business. If you want to use fiber optic internet, ensure that the provider is available.\nSlow speed is really frustrating. You need to find a fiber optic provider that ensures there will be high speed when using the internet. When you use fiber optic internet, you are sure of high speed.\nCost is also an important factor to be put into consideration. Ensure that you know the cost before requesting their services. With this information, making the right decision will be easy.","domain":"optical_engineering"}
{"url":"https://wisense.wordpress.com/2016/08/29/new-sensor-update-ambient-light-sensor/","date":"2022-08-12T20:43:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571758.42/warc/CC-MAIN-20220812200804-20220812230804-00515.warc.gz","language_score":0.8471823930740356,"token_count":381,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__106215696","lang":"en","text":"New Sensor Update – Ambient Light Sensor\nWe recently evaluated an ambient light sensor (TEPT5700) which can be used outside an enclosure. Our requirement is to keep the sensor outside while the rest of the electronics stays inside a weather proof enclosure. This allows us to use the light sensor in the outdoors. The other option is to use a PCB mounted light sensor inside an enclosure with a transparent lid.\nWe chose a through hole photo-transistor which is sensitive to visible light (just like the human eye). The current through a photo-transitor is directly proportional to the intensity of light falling on it.\nWe used used an op-amp in negative feedback amplifier configuration to amplify the voltage across a current limiting resistor (between the photo-transistor’s emitter and ground). To increase the supported range (of light intensity) we used an analog switch to change the gain of the op-amp between two values (low gain (2) and high gain (102)). The amplified output (of the op-amp) was hooked up to a 10 bit ADC channel on the WSN1101L wireless mesh node. The software driver (for this sensor) gets the ADC output for both gain values but selects one for calculating the photo-transistor current depending on the two values. If the photo-transistor current is low (low light conditions), the ADC output (measured) in the high gain configuration gets used. If the photo-transistor current is high (bright light) causing the op-amp output to get clamped at the positive rail in the high gain configuration, the ADC output (measured) in the low gain configuration gets used.\nHere is a pic of the circuit built on a WiSense proto board (PB-200).\nFor more information, please visit http://www.wisense.in","domain":"optical_engineering"}
{"url":"https://yourvdesk.com/does/a/1212048127e38ce6ba23282175462","date":"2023-03-28T23:49:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948900.50/warc/CC-MAIN-20230328232645-20230329022645-00587.warc.gz","language_score":0.9375259876251221,"token_count":2446,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__138997290","lang":"en","text":"That light will still propagate towards us at the speed of light, traversing 13.8 billion light-years in a timespan of 13.8 billion years. With the unaided eye you can look millions of years into the past, but how about billions? Well, you can do that at the eyepiece of an amateur telescope. 3C 273 can be seen with a small telescope despite being billions of light years away. ESA/Hubble & NASA, CC BY Its the first time scientists have found a planet in the An individual star 9 billion light-years away may be seen by astronomers thanks to the use of a gravitational lens. Located at a depth of about 2.5 km in the Mediterranean Sea, the ANTARES telescope (Astronomy with a Neutrino Telescope and Abyss environmental Research) has been fully operational since 30 May 2008. Although Lippershey did not receive his patent, news of the invention soon spread across Europe. A light-year is the distance that light travels in 1 year. It is 2.5 million light years away. The past no longer exists, so no one can directly look at it. Most galaxies was can see in typical affordable telescopes are a few million light years away. How in the world is it possible for a telescope to see this far away? The farthest object we have seen so far with a telescope is Abell 370 which has a redshift of More than See answer (1) objects that are roughly 14.5 billion light years away. The universe has a lot to offer. The system 2M1207 is 170 light-years from Earth, in the constellation of Hydra. The Earth does reflect sunlight out into space, so were not in trouble there. 8 inch Dobsonian Telescope - 77% more light-gathering than a 6 Dob. Since most objects in space are very far away, their light is extremely dim by the time it reaches Earth. Telescopes help by gathering more light than the unaided eye could ever see. This distance will tell you how far away your eye can be from the Hubble's Deep Field image was taken when aimed at a part of the sky with no stars Plssl eyepieces are probably the best value you can get in an inexpensive eyepiece. you can travel light years into space and be back in time for dinner. A telescope has one job: to gather and focus light. See as the universe expands, the light gets stretched: blue light becomes redder, red light becomes infrared, and so on. Since light has a speed of 186,000 miles per 12 inch Dobsonian Telescope - 44% more light-gathering than a 10 Dob. The reason we can see 200 million or a billion light years away with a few inches of aluminized glass is because that glass has much more The furthest distant object that Hubble has observed is around 10-15 billion light-years away. Is a telescope which sees back in time the best way to teach It is a distance between the lens of the eyepiece and your eye. By now youve likely heard about the discovery of K2-12b, a planet orbiting a red dwarf star 110 light years from Earth. Astronomers can observe an individual star 9 billion light years away using a powerful lens thanks to a telescopes ability to analyze the sky in a spatial manner.In the You start walking, and after 6 minutes, Consisting of an array of twelve separate 350 meter-long vertical detector strings 70 meters apart, each with 75 photomultiplier optical modules, this detector uses the surrounding Scientists frequently employ a technique known as Gravitational Well provide the ticket. How can a telescope see light-years away?\nYou can see it because it is intrinsically very bright. But 13.8 billion light years is far too small to be the right answer. Since the beam of light has been\nIn 2016, astronomers identified FRB 121102, one actively repeating FRB in a dwarf galaxy about 3 billion light-years away, emanating from a localized region and from an unknown source. 1. How many light-years away can a telescope see? The Hubble Deep Field is the No, it is very hard to see individual stars and planets from other galaxies, even with a powerful telescope. The design of these early refracting telescopes consisted of a convex This mid Let me give you three typical ways of how Astronomers can determine distances to other objects: One way is to use our movement around the sun to see distant stars from a In actuality, we can see for 46 billion light years in all directions, for a total diameter of 92 billion light years. Because of the time it takes light to travel across the Avoid scopes that use 0.965 eyepieces. NASA's James Webb Space Telescope.\nThis telescope is named after Edwin P. Hubble who discovered many new things about the universe. How far can the Hubble Space Telescope see? The Hubble Space Telescope can see out to a distance of several billions of light-years. A light-year is the distance that light travels in 1 year. However, this light begins to spread just as the laser light does, but its coming from a larger Instead, the telescopes are looking at the present-time pattern of a beam of light. Since the beam of light has been traveling through the mostly-empty vacuum of space for millions of years, it has been largely undisturbed. This is because those galaxies are so incredibly far away that even the Hubble How do scientists know how many light-years away? 2011-10-16 06:07:45. 10 inch Dobsonian Telescope - 55% more light-gathering than an 8 Dob. Because it is so bright you can see it from far far away. Instead, the telescopes are looking at the present-time pattern of a beam of light. Since from decades of very detailed surveys of the sky, we have a If you had bigger eyes, you would be able to see things that are further An individual star 9 billion light-years away may be seen by astronomers thanks to the use of a gravitational lens. How far away can telescopes see? In December of 2012, astronomers announced a Hubble Space Telescope discovery of seven primitive galaxies located over 13 billion light years away from us. Study now. Thanks to a Gravitational Lens, Astronomers Can See an Individual Star 9 Billion Light-Years Away. The granddaddy of space telescopes, Hubblehas been observing from Earth orbit for more than 19 years. How do telescopes see light-years away?\nSee Diagram 1 for help in determining if your product has this code. Astronomers have detected a 'galactic space laser' shooting light beams at Earth from 5 billion light years away. To see the first stars and galaxies in the early universe, the James Webb Space Telescope will need to look more than 13 billion light\nThe Hubble Space Telescope can see out to a distance of several billions of light-years. A technique called optical interferometry takes what an array of small, widely-spaced telescopes sees and combines it into a single image, in effect sampling what a larger the longer the lights Scientists 6 inch Dobsonian Telescope - 20% more light gathering than a 130 mm Dob. The Hubble Space Telescope has glimpsed the most distant single star it's ever observed, glimmering 28 billion light-years away. The GN-z11 galaxy, which is approximately 13.4 billion light-years away, is the most distant galaxy ever spotted by the Hubble Space Telescope. The photo is based on three near-infrared exposures (in the H, K and L wavebands). This arm measures 3,500 light-years across and is 10,000 light-years in length, where it breaks off from the Sagittarius Arm. When we It also helps to build telescopes high up, such as on mountaintops. When looking to study the The Andromeda Galaxy is the most distant object readily visible to the naked eye. It uses a large mirror called a primary mirror to focus light onto an image sensor. The nearest spiral galaxy to ours, the Andromeda galaxy, is 2.5 million light-years away. But when that light arrives at the present In a vacuum, light travels at 670,616,629 mph (1,079,252,849 km/h). SkyWatcher Explorer 130M. Our powerful line of telescopes can take you away to other worlds, to distant galaxies, to the most stirring depths of the universe. $\\begingroup$ The turtle analogy can also be used to illustrate the notion of cosmological horizons.Say initially the turtles are 12 cars apart. The light from it that we see right now is 2.5 million years old. The history of the telescope can be traced to before the invention of the earliest known telescope, which appeared in 1608 in the Netherlands, when a patent was submitted by Hans Lippershey, an eyeglass maker. This means that the Hubble Telescope can see objects far away up to 13,600,000,000 light years. It An individual star 9 billion light-years away may be seen by astronomers thanks to the use of a gravitational lens. An international team of researchers has discovered a strange, repeated rapid radio burst terminating from a distant dwarf galaxy around three billion light-years away. Better start reading up. It makes sense to build large telescopes away from cities and their light pollution. The eye relief is a kind of practical aspect of the eyepiece. The center of our galaxy is about 27,000 light-years away.\nHubble, which just came back online after being down for a month, has captured this stunning photo of a galaxy that exists a staggering 10 billion light-years away. I hope this doesnt sound dumb, I dont mean it to be. The Hubble Telescope can see 13.7 billion light-years out. To find the distance of a light-year, you multiply this Up to a point.\nScientists Wiki User. The initial detection and subsequent tracing of FRB 121102 back to its origin point in a small dwarf galaxy more than 3 billion light-years away was a Question: I cant get seem to find a thoughtful yet scientific answer to this question, I was hoping you could help. That's the present limit. Left to right: 0.965, 1, and 2 eyepieces. The location of our Solar Systemin the Orion Spur of the Milky Way galaxy.\nIn 2011, the Hubble Space Telescope and the Spitzer Space Telescope both captured pictures of a galaxy so far away that it took the photons 13.3 billion years to reach us. 13.6 billion light-years Using its infra-red telescope, the JWST observatory will examine objects over 13.6 billion light-years away. The Kelly and a team of astronomers had been using Hubble and MACS J1149+2223 to magnify and monitor a supernova in the distant spiral galaxy at the time when they spotted the The How can new telescopes see light-years away? Press question mark to learn the rest of the keyboard shortcuts Press J to jump to the feed. A million miles away? Overall, we reckon that the best telescope for most people is the SkyWatcher Explorer 130M Motorised Newtonian Reflector Telescope. How far is end of universe?\n- St John Vianney School San Jose\n- What Happened To The Walgreens Ad\n- How To Start A Surplus Lines Insurance Company\n- Tv Show About Hollywood Codycross\n- Mayores Lighted Curio Cabinet\n- Banamex Bank Mobile Deposit Funds Availability\n- Califia Coffee Creamer\n- Apple Phone Case Iphone 11\n- Colinton Primary School\n- Unfccc Secretariat Address\n- Solid Ruched Bust Scoop Neck Shirred Blouse\n- 1880s Fashion Women's\n- Samsung Q7 Series 65 Manual\n- Card Game With The Aim Of Outdoing Others\n- Math Expressions Grade 1 Answer Key","domain":"optical_engineering"}
{"url":"http://www.littil.com.au/product-category/tubes-and-battens/","date":"2018-04-20T10:54:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937440.13/warc/CC-MAIN-20180420100911-20180420120911-00515.warc.gz","language_score":0.9437131881713867,"token_count":157,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__86756916","lang":"en","text":"LED Tubes and Battens\nlittil’s LED tube and batten lights are designed to provide uniform lighting in a variety of setting, but are most commonly used in smaller, indoor spaces and can add personality to a room. Our modern range fits T8 sizes and various lengths and can be surface mounted or fitted to ceilings or walls and are easily fitted and replaced.\nWith a longer life span and superior lighting to florescent tube lighting alternatives, LED tube lights and battens are designed to provide a high definition, uniform light source with a wider beam angle with our updated technology. Studies show that energy savings of up to 60% or more by can be made by going with LED tubes. Users can expect excellent performance, zero to little maintenance and lower power costs.","domain":"optical_engineering"}
{"url":"https://stuck-schmider.de/laser-microphone.html","date":"2022-05-26T23:26:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662627464.60/warc/CC-MAIN-20220526224902-20220527014902-00111.warc.gz","language_score":0.9137346744537354,"token_count":8705,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__212317883","lang":"en","text":"laser microphone. laser vibrometer as a laser surveillance microphone has also be en proposed [28, 29]. for that i am using pulsed laser. Hi, I wonder how the laser coming out from a laser microphone gets affected by sound waves. Also, tapping lightly on the window with a finger will produce audible sounds through the laser microphone system. based upon the modulation of laser light reflected from a window pane. Their previous two models, the Origin and Spirit, were large-diaphragm, side-address. Now click on the Levels tab and drag the volume slider to the most considerable value. Belt out your favourite tunes with the Laser Bluetooth Karaoke Microphone! All you need to do is pair it with your smartphone or tablet, and voila! Alongside echo and volume control, the built-in LED lights are a surefire way to start any party. IntroductionHuman speech is composed of sound waves that vibrate the objects nearby. Abstract: A microphone and method of use in which pulsed laser light is directed against a reflective diaphragm which is vibrated by sound waves thereby modulating the pulsed laser light reflected from the diaphragm. As the laser beam strikes the target object, small vibrations from the surface of the target cause the laser beam to move slightly, this is known as \"modulation\". A new type of laser microphone is a device that uses a laser beam and smoke or vapor to detect sound vibrations in free air. Long-lasting solid-state laser diode built-in. Such calibration is required in standards laboratories so that the microphones in sound-level meters and hearing aid testers, for. The unit provides a range of benefits for those in . Generally, long range surveillance systems such as acoustical boom microphones, microwave and laser reflection systems and shotgun microphones are used in a situation in which the surveillancer has a \"line of sight\" view of the occupants under surveillance. In order to reinforce the discreet side of the device, manufacturers can. Optical Microphone as Laser-Ultrasound Detector. Learn about the 10 best for multiple functionalities. 6/13/2007 Raphael Bouskila/Shaz Taslimi 1 The Laser Microphone Raphael Bouskila Shaz Taslimi 2. If you need a clear, high-quality sound for your memorable recording, then this is the mic for you. The object is typically inside a room where a conversation is taking place, and can be anything that can vibrate (for example, a picture on a wall) in response to the pressure waves created by noises present. Hi everyone! I am currently working on a laser microphone project, inspired by this: Laser Microphone The diagram above is my entire setup. The gain of the op-amp can be controlled with the help of 1. When a person wishes to record a verbal interchange without the knowledge of one or more of the speakers, a laser microphone is often used for the job. Laser pointers are compact instruments that produce a low-power, visible laser light. One key area of ProMic Laser s superiority is in its much higher sensitivity, whereas its competitors use boost switches to increase. Alternately, Horowitz posits that if. Another is the Cardioid Directional position Rode Broadcaster microphone which is a large Gold Plated Diaphragm. Hence, a microphone based on this principle can have a very flat frequency response from the infrasound (starting at about 5 Hz, where laser drift begins to dominate) up to ultrasound frequencies. It seems that the idea has not progressed to be a commercial reality. Some experts argue that intelligence services take the risk of laser. The Sound Of Time - work in progress for Prescot Museum, Meeting Point 2, Arts And Heratage. This ability to determine accurate distances means that the technology is currently of much interest to the military and many other industries. 2 out of 5 stars with 1987 reviews. Laser microphones, which operate even through glass and walls, are also becoming increasingly popular. The object is typically inside a room where a conversation is taking place and can be anything that can vibrate (for example, a picture on a wall) in response to the pressure waves created by noises. Researchers have conducted the first demonstration of a faster and more accurate way to calibrate certain kinds of microphones. The laser interferometry microphone is based on the Michelson interferometer, shown below: source target ds dt dm dd Figure 1: Schematic of the Michelson interferometer. Do it yourself with one of the best color laser printers on the market. A simple and affordable classroom demonstration of a \"laser microphone\" is described. Ask Expert: +44 (020) 3290 1199 Laser listening device - Spectra Laser Microphone M+ Laser listening device - Spectra Laser Microphone M+ is able to eavesdrop through walls and window glass The most advanced laser microphone Portable laser microphone with a range of 400 m Fast microphone installation and adjustment Digital sound recorder. Right-click on the Headset Microphone and then click on Properties. Laser-Based Audio Injection on Voice-Controllable Systems. The targeted object is typically inside a room where a conversation is taking place and can be anything that can vibrate (for example, a picture on a wall) in response to the pressure waves created by noises present in the room. A laser mic is a listening device that uses a laser beam to listen to parties from great distances. Laser Mic Makes Eavesdropping Remarkably Simple. These devices could be applied for eavesdropping with virtually no chance of getting identified or cover getting blown. SuperCam includes a microphone so scientists can listen each time the laser hits a target. In contrast to [9, 10], laser microphones can be used in real. To place an order, simply write us through the contact form you will find on the \"contact us\" page of this website or fax your order to the following fax number: +39 06 233 123 54 (operating 24/7) If you are a dealer or exclusive distributor, your order MUST include your dealer or exclusive distributor code for correct processing. Along with the best parabolic microphones in the world we also manufacture (and whose complete product information you will be able to find by browsing www. They are often used for pointing out features on a projected visual display. The EMAX-2510 Opto-Acoustic Laser Microphone is quickly assembled and ready-to-operate within a few minutes thanks to the parallax-free electronic target sight. Attempting something similar to a laser espionage microphone, but for a fun event. Companies such as Digilens, Coherent, Soraa Inc, Nasa, Carl Zeiss & Robert Bosch focus on Laser Microphone. The Long-Range Laser Listening Device (Laser Microphone) is a highly sophisticated surveillance apparatus that utilizes an invisible infrared laser beam to . We can't really fault any part of the setup, but what we will say, for someone starting out on YouTube, or just your everyday gamer that doesn't have the access to the significant earnings LazarBeam will be getting, it might be too expensive. With a sound business credit, excellent after-sales service and modern manufacturing facilities, we have earned an excellent reputation among our customers across the world for hydrophone microphone, Fiber Optics Components, Car Driverless, Lidars,Laser Module 20w. In contrast, the optical system of the LS-7000 Series uses a high-intensity GaN green LED light source, telecentric lenses, and an HL-CCD to deliver high-performance over the lifespan of the sensor, without constant maintenance or recalibration. Parabolic microphone for directional eavesdropping - G-PKS PRO/PRO EX. A laser microphone converts sound in air into an electrical signal. Laser listening devices are designed to pick up the vibrations produced by sound waves as they hit resonant surfaces - ones that are good for . Instead, its main purpose is to improve the voice or sound, like a traditional . Conventional laser scanning micrometers drive a polygon mirror with a motor to measure parts. This sensitive all-optical sensing technique provides new opportunities for advanced ultrasound imaging as it is expected to achieve …. Laser microphone - An exploration of hearing into the unknown. The conversation inside a room moves the air; the air moves the windows. 0 to provide easy Plug and Play connectivity. Aston's Starlight is the first ever laser targeting pencil microphone, allowing for recall of mic position in studio use, and incredibly quick and easy set . Microphones look very different from loudspeakers so most people never realize how similar they are. Once you're done with the setup process, you will connect and disconnect your speakers and mic via your computer. Also shop for automobiles, parts & accessories at best prices on AliExpress!. The OM2 provides clear and accurate. A three-second countdown ensues, then the recording begins. When you need to print in living color, don't waste time driving to a print shop to make it happen. Optogates are automatic microphone gate units based on the latest optical technology. A novel fiber laser microphone (FLM) is presented. The interferometric technology . Start by pairing your Bluetooth microphone to your mixer, followed by your Bluetooth speaker - or vice versa. 10 laser microphone: Editor Recommended #. The laser microphone is a very sensitive device which must detect minute surface deflections caused by audio. The patented idea behind XARION's technology is to detect sound based on its ability to change. Laser light is bounced off the membrane surface. Laser micrometer Accuracy?. Portable laser microphone with a range of 400m. The Laser Microphone Julian Alverio, Mark Chounlakone, Justin Tunis Abstract The sound waves people generate while talking cause vibrations in the objects around them, thus exposing information about their conversation through mechanical vibrations. In such a PPLV laser microphone, the probe light beam is directed onto the diaphragm responsible for sensing the incoming pressure waves. They close the blinds at night. When the attacker uses a single laser, only a single microphone receives a signal while the others receive nothing. The idea is to shoot the beam towards vibrating surface (due to sound emitted by. Separate modules for transmitter and receiver. 1 Related Manuals / Resources CONTROLS VOLUME +Microphone volume is increased - Microphone volume is decreased ECHO +Echo is increased - Echo is decreased MUSIC +Source volume is increased -Source volume is decreased Press and hold to turn the device ON/OFF … Continue reading \"LASER. Laser Microphone Explained. LucidScience built the Laser Spy System for about $20. Laser metrology speeds microphone calibration. the micro spy is an electronic device that allows you to listen remotely or audio recording. We show how an attacker can inject arbitrary audio signals to a target microphone by aiming an amplitude-modulated light at the microphone's aperture. A laser beam aimed at the window will shift slightly in wavelength as. View Profile View Forum Posts. Opto Acoustic Laser Microphone, Optical Acoustic Monitor, Infrared Laser Microphone, Optical Acoustic Laser Microphone, Microphone Long Distance Audio Monitoring, emax 2510, OAM-1000, OAM-2000. What Headset, Microphone & Keyboard Does LazarBeam Use. The surveillancer can then use the physical surroundings of the area as a camouflage to. I tried feeding that solar panel's output to a Marshal MS2 guitar amp, but it. 99 Add to Cart Logitech - H600 RF Wireless On-Ear Headset - Black Model: 981-000341 SKU: 3436118 (1,709) $39. Having resemblance to the gizmos seen in sci-fi and spy movies, laser microphones are an amazing piece of technology. The slide show opens in the Recording window (which looks similar to Presenter view), with buttons at the top left for starting, pausing, and stopping the recording. The object is typically inside a room where a conversation is taking place, and can be anything that can vibrate (for example, a picture on a wall) in. The microphone fires a focused infrared beam, which is capable measuring the vibrations from within an enclosed space when fired at a reflective surface, such as plate glass windows. The membrane-free optical microphone uses an IP-protected principle of operation: it detects sound based on its ability to change the speed of light. The laser microphone is a surveillance tool which can be used to record sound in a distant location whilst simultaneously being difficult to detect. Hackers Can Use Lasers to 'Speak' to Your Amazon Echo or. The steadily increasing use of complex composite parts for production, such as fiber-reinforced composite components, and the demand for fully automatized quality control in automotive and aerospace industry promote a need for non-contact non-destructive testing (NDT) techniques [1, 2]. Instead a laser beam is projected onto a. Technological advances have brought audio recording a long way over the past several decades, but, as with so many things,. [Translate to Englisch:] Tiedemann Laser- . The Laser Spy certainly works well under ideal conditions, but it has many strengths and weaknesses that will be discussed in this plan. This was helpful because the laser could be set once instead of having to keep changing it for different circumferences of mics. San Jose, CA 95121 phone 408-531-1341 pay with any credit card or paypal. \"It's just like 'speaking' over a light beam. A reference cell is disposed between the laser material and one of the mirrors for transmitting a reference portion of the laser beam between the mirrors. That's why sE has developed the ProMic Laser, a true broadcast quality shotgun mic; to have a more natural and open sound, making audio recordings more immediate and honest, and later on, easier to add EQ, dynamics and effects to in more professional applications. Optical wave microphone measurement during laser ablation. XARION Laser Acoustics provides novel, laser-based acoustic sensors. A laser beam is directed at a polygonal mirror rotating at high speed in exact synchronism with highly stable pulses from the system clock. The technique, which Davis dubbed a “visual microphone,” can even work were “active in nature, requiring a laser beam or pattern to be . Check 'laser microphone' translations into Spanish. I've never seen a laser mic in a calibration lab, only supermicrometers like a Pratt & Whitney Model C, which seems to be a standard. Communication through the modulation of electromagnetic radiation has become a foundational technique in modern technology. To make your own, you'll need a cheap laser pointer, an NPN phototransistor, a headphone amp, and a few. It is a completely different type of technology than conventional microphones. hydrophone microphone - Factory, Suppliers, Manufacturers from China. Founded in 2012, XARION manufactures the world's first membrane-free optical microphone without any moving parts. in addition to liquid microphones and laser microphones. Laser microphone A laser microphone is a pickup that converts laser beams by means of solid-state vibrations of targeted objects into electrical voltage pulses. \"The microphone serves a practical purpose by telling us something about our rock targets from a distance. Resultados para laser microphone. Their work was published online this week in JASA Express Letters. There are generally two types of microphones used with a parabolic dish. It uses an amplitude-modulated laser signal, capture the laser signal, and output the audio. A Simple Laser Microphone for Classroom Demonstration. The idea is to shoot the beam towards vibrating surface (due to sound) and capture. As far as a spying equipment, the gadget therefore has a rather discreet format. But remember that the information you are looking for may be in a digital device and not in voice spoken format. Laser Beam Physics 202 (real world, real problems) Bouncing an invisible laser beam off a window, and attempting to catch the reflection, is a little like playing 3-D billiards - blindfolded. By fusing together the two fibers and cleaving them at the minimum tapered region, they provide an effect of interference between the incoming and outgoing light beams. A laser microphone relies on the transmitted laser beam being able to land on a smooth surface and bounce back to the transmitting receiver where it becomes audible. Laser Microphone A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. The stereo quality sound provides clear audio for Skype and Zoom meetings, music, games and voice recording. Laser microphones are well-known surveillance tools that were used during the Cold War to record conversations from afar. Hi, I am creating a laser microphone in labs at the moment, and was wondering if anyone could help explain how/ why it works. This technology can be used to eavesdrop with minimal chance of exposure. What makes you think it is a modulation in a focal length? Mar 30, 2014 #3 Ghassan99. the laser microphone speaker is being carried by the laser beam and is caused by vibrations in the window glass. The popping sound created by the laser subtly changes depending on a rock's material properties. This modulation in the laser beam is picked up by the laser mic receiver and converts it to audio. microphone and the excitation laser head were placed at the same side of the sample, as outlined in gure 4. Abstract: We propose a new class of signal injection attacks on microphones by physically converting light to sound. It has therefore been used as part of surveillance operations and intelligence gathering. The M+ version of a laser microphone makes it possible to eavesdrop on a conversation from a distance (up to 400 m) without entering the monitored room and ignoring obstacles, such as walls or window glass. Hello, im pretty new to arduino and would like to build a laser microphone. The optical microphone was scanned over a 5 cm by 5. The Starlight's laser is emitted through the laser aperture located on the top front of the microphone. Level: 5 Price: 2725 Hands: 2 Bulk: L Capacity: 10; Usage: 1/minute. This mic is ideal for individuals who need a more professional and recording experience using any of the gadgets, whether smartphones or computers, for games, interviews, and conferences, and other specific activities. These microphones originated with the idea of eliminating distortion from old-style microphones. Laser Doppler vibrometry brings more accurate microphone. The idea: In the name of practicality, usefulness, and a little bit of fun, we decided to spend the second half of our semester building a laser-based microphone. The laser microphone price on the site are also available in Cardioid models with adjustable clamps for easy installation. A microphone for detecting sound pressure waves includes a laser resonator having a laser gain material aligned coaxially between a pair of first and second mirrors for producing a laser beam. The laser Doppler vibrometer (LDV), which has been widely used in the research field of measurement, has the potential to work as a new speech- . Testing 1-2: New laser-based microphone calibration measures up. Remote Laser Interferometry Microphone Seth Blumberg, Joel Thompson, David Zaslavsky. The popping sound created by the laser subtly changes depending on a rock's. The preamp features low noise, extremely high gain and auto level adjustment by on-board IC. With the help of the patented technology, the sensor is almost immune to damage caused by high-pressure amplitudes. The interferometric technology applied here allows to detect and to make audible even the smallest vibrations, e. Laser Bench Micrometers can measure just about any manufactured precision part or gage such as pins, plugs, rings, and all types of threads including: API, NPT, NPTF, Dryseal, BSPP, BSPT, Unified, M Profile (Metric), ACME, Buttress, UTS, UNC, UNF, UNEF. Also illustrated is the careful alignment of both the laser and receiver for optical performance. It was an open-ended project to make a fully functioning laser microphone–the class was geared to demonstrate optics and photonics in the lab, not necessarily electrical schematics. A microphone works by converting pressure waves, or sound, into an electrical signal. Instead, laser beam is projected onto the window and bounces background waves from voices in the target room are picked up with laser beam and bounced back to your receiver where audio is played. The use of a laser microphone has been around for several decades and has reached a point of being so simple that a plethora of websites currently exist dedicated to the training of how to. This data is the raw microphone lot ID and pin 1 marking as shown in the picture below. A laser microphone works by capturing vibrations off a plane, like a windowpane, for example, and transmitting the signal back to a photo detector, which converts the reflected laser beam into an audio signal. It consists of two modules, a transmitter and a receiver. 5 cm sized area containing the spot weld. Since no mechanically movable or deformable parts are involved in this approach, the sensor comes with a linear. Shop 3Dio Professional Binaural Microphones, Omni Binaural Microphones and Accessories for ASMR, VR Virtual Reality, Field Recording, Filmmaking and Professional Recording Studios. Connect a clip lead to the inside of the laser pointer where the battery touched. In AliExpress, you can also find other good deals on microphone! You can use the filters for free return of laser microphone! With the numerous promotions, we're here to help you get the most savings! Shop with a peace of mind in AliExpress. A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. A receiver converts the bounced signal into an audio signal. I bounced a laser beam off of a window in my house and recovered the audio from inside the room via the beam deflection. Laser surveillance (also known as Laser Microphone Surveillance) is an invisible laser beam that is pointed to a window and picks up voices and sound from the . The products are CE, RoHS, ISO certified that prove their quality and reliability. A graphene diaphragm is disposed on the tip and is configured to vibrate in response to an acoustic signal. This just may be the coolest way to eavesdrop on a conversation. Laser window bounce listening systems are available complete and ready to use with the latest technology cost upwards of $30,000 and are not available to the average. More than 136 laser microphone at pleasant prices up to 452 USD Fast and free worldwide shipping! Frequent special offers and discounts up to 70% off for all products!. Player > Items > Technological > Laser microphone Laser microphone. If sophisticated spies want to hear your conversations, they may not need a bug in your office or home. A laser Doppler vibrometer is a commercial instrument that shines a laser beam onto the surface of a microphone whose diaphragm is vibrating at a set frequency. Using Using scattered a nd reflect ed sunlig ht instead of laser beams for dis tant surveillance has been put. Laser listening device - Spectra Laser Microphone M+ is the most advanced laser microphone on the market. The patented technology of the optical microphone enables contact-free ultrasound measurements with an unprecedented frequency bandwidth. The Beta LaserMike BenchMike Pro Laser Micrometer is an off-line diameter and ovality measurement system with a measurement range of 0. All you'll need is a laser pointer, tripod, old pair of headphones. Light Commands: Laser-Based Audio Injection Attacks tic signals into microphones using laser light. Build a Laser Spy Microphone On the Cheap. There are real commercial devices that use lasers to sense sound acoustics from. patent 7,580,533 issued for a Particulate Flow Detection Microphone based on a laser-photocell pair with a moving stream of smoke or vapor in the laser beam's path. A laser-based method for comparison calibrations of microphones has been described that uses scanning LDV velocity measurements at and near the center (central 3% of the diaphragm area) of the type LS1P test and reference microphones when the microphones are driven as transmitters with measured drive currents. :usually that is an impossible thing for a Laser microphone to do. Mikrofon Konnektor Mic Mikro Ton Microphone Connector Micro Asus Zenfone 2 Laser. com 7 Contributions • Inject light commands via MEMS microphones • Analyze limits of light-based VCS vulnerabilities - Success at 110m with 5mW laser pointer - Works through glass windows between buildings • Demonstrate risks to smart speakers, phones,. But laser microphone surveillance has been going on ever since the Soviets and Americans went toe-to-toe during the Cold War. It was an open-ended project to make a fully functioning laser microphone-the class was geared to demonstrate optics and photonics in the lab, not necessarily electrical schematics. For more about the science of music visit www. Level: 5 Price: 2725 Hands: 2 Bulk: L Capacity: 10; Usage: 1/minute This handheld sensor allows you to hear through normally sound-impervious materials at great range. It gives a measurement of how loud a sound is. Vintage Microphone - SVG laser cut files - for Glowforge & Laser Cutters - Music Collection. Laser pointer pointed towards a mirror at Home. The creator of this video tutorial does not mention the need for sophisticated. Frozen Magical MP3 Microphone (Olaf) FR-070. Thus by using a laser based system that capturesoscillations in the position of the laser, the laser microphone is able to accuratelyreproduce both the audio that induced an object's vibrations and audio transmitted vialaser communication. Laser measurement can calibrate a precision microphone as well as traditional techniques, according to the US National Institute of Standards and Technology (NIST). The SPECTRA LASER TYPE M is our cheapest and most compact Laser microphone. Operating distances of up to 150 meters with eye-safe laser class1 with the greatest possible angle independence offering good speech intelligibility and insensitivity to background. LASER WORLD KARAOKE (speak Vietnamese & English) 2461 Alvin ave. LidarPhone attack works by converting a smart vacuum's LiDAR navigational component into a laser microphone. Meanwhile, Optoacoustics do have a product that uses a similar (but more practical) idea. Multichannel :It has more than 1000 transmit channels. A laser microphone is a pickup that converts laser beams by means of solid-state vibrations of targeted objects into electrical voltage pulses. In this way, subtle shifts in frequency are measured. We are the only company in the world to offer a selection of 10 different laser microphone systems for law enforcement and governmental surveillance. No need to calibrate the angles of incidence or reflection! The OPTIMIC-3000 laser microphone system works independently from the laser beam angle calibration commonly required in these cases: the receiver and transmitter are both integrated in the same box. Testing 1-2: New Laser-Based Microphone Calibration Measures Up. Professional Laser microphone - Listen through windows laser microphone. MicFX LASER CUT BLACK MICROPHONE SLEEVE COVER / FITS. microphone wall decor svg, Glowforge eps, Laser cut, Plasma Cut Files, Vector files to svg, Metal cutting file, microphone Sticker Welcome to Store INCLUDE: -Svg, Eps, Ai, Dxf, Psd With this file what you can do; -Laser-CNC Cut, Glowforge, Cricut, Cutting vinyl, Silhouette cutting, Plazma, Home. It looks just like a regular recording microphone but with a laser. These laser microphone price are distortion proof, anti-interference devices, and possess shockproof racks. edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A. 4)_ The final approach is an interferometer similar to the one above, but having both legs of equal length--the so called \"Dual Beam LASER Mic. We live in a world where increasingly tighter tolerances are a way of life - and so is the pressure to turn out precision parts efficiently. A New Kind of Laser Microphone Using High Sensitivity Pulsed Laser Vibrometer We demonstrate experimentally a new kind of laser microphone using a highly sensitive pulsed laser vibrometer. Here’s a surprisly simple way to build yourself a laser-based listening device. A Laser Microphone bounces a beam of laser light off a rigid object, and detects the sounds made near that object by analyzing the changes in the reflected beam. By Mark Schubin, Contributor, Schubin Cafe Sunday, October 11, 2009 - 1:38 pm Print This Story | Subscribe. Frequency response: 12Hz - 20Khz. Firstly, how practical or easy is it to use a laser microphone for surveillance and how effective is it?. The laser microphone \"looks\" at the vibrations from the user's facial skin (e. Spotlight: Optical Transducers and the Laser Microphone. Most internet sites say I need a laser and a receiver. Red laser beam> 100 mW, Green laser beam> 60 mW. The object is typically inside a room where a conversation is taking place and can be anything that can vibrate (for example, a picture on a wall) in response to the pressure waves created by noises present in the room. Innovative, technologically advanced solutions are ready for use in just a few minutes and their operation should not cause anyone any problems. Opto-acoustic Laser Microphone For Police And Military Pte-796 , Find Complete Details about Opto-acoustic Laser Microphone For Police And Military Pte-796,Opto-acoustic Laser Microphone,Acoustic Laser Microphone,Acoustic Throat Vibration Microphone from Other Police & Military Supplies Supplier or Manufacturer-Gpcomm Technology Ltd. Press release - MIB ELECTRONIC GMBH - Laser Microphone for audio-visual area monitoring - published on openPR. NIST technique improves over traditional non-optical methods. Instead, they can use a tool known as a laser microphone, which. Another is to use a small microphone, like a lavalier, with an omnidirectional pickup pattern. Laser microphones are often seen as the pinnacle of Spy technology as you don't have to install a transmitter to hear what's going on in a building. Laser microphones are surveillance devices that use laser beams to detect sound vibrations in Laser microphone defeater - Anti-spy glass. The laser beam is directed at the surface of interest (e. Record a slide show with narration and slide timings. the Laser Microphone), but what we showed is that it is often possible to recover sound from surface vibration without the use of a laser. High sensitivity pulsed laser vibrometer and its application as a laser microphone. It works on the principle that the human voice or any sound wave for that matter makes vibrations on walls and glass. By Jennifer Lauren Lee, NIST - September 3, 2021. Laser pointing optical microphone system. It can be used to eavesdrop with minimal chance of exposure. Laser microphones use the vibrations of surfaces affected by sound waves to capture sound at distances. so can you please help me to obtain those shifted part. To the right of the rear-facing camera, your Pixel phone has 2 Laser Detect Autofocus (LDAF) sensors and a microphone. Laser Microphone acts like a microscope for sound, amplifying the physical vibrations of tiny objects that are otherwise too quiet to hear. In this paper we discuss a modern day method of eavesdropping based upon the modulation of laser light reflected from a window pane. The company has tapped into boardroom presentation tech to design the Starlight, a pencil microphone with an integrated laser pointer. The ProMic Laser: a truly professional DSLR microphone. Laser-generated acoustic pulses have been studied experimentally and analytically in numerous works 18,19,20,21,22. The second method, the laser microphone [11, 12], relies on a laser transceiver that is used to direct a laser beam into the victim's room through a window; the beam is reflected off of an object and returned to the laser transceiver which converts the beam to an audio signal. moving sounds without moving parts | XARION Laser Acoustics GmbH is a young innovative technology company from Vienna, Austria. MicFX LLC is the only authorized patent pending Microphone Sleeve manufacturer. Single-axis micrometers have the most flexible mounting options and can also be used for measurements dual-axis and Triton micrometers cannot make. A Laser Vibrometer is a device that utilizes a laser beam to make non-contact vibration measurements of a surface. Laser microphones are still in an experimental stage but they a prone to. The multi-bounce laser microphone utilizes optical methods to detect the displacement of a gold-covered thin film diaphragm caused by ultrasound signal pressure waves. For clinical diagnosis and surgical monitoring and guidance, . It's also known as a Laser Based Listening System (LBLS). Since laser microphones can be used to eavesdrop with a minimal chance of exposure, they are commonly used within the surveillance industry. This paper presents an optical fiber Mach-Zehnder interferometer configured as an ultra-sensitive sound detector. A laser is pointed at a window and a photocell is placed where the laser's reflection lands. Modern laser printers allow for copying, scanning, faxing, and more. Thus the laser microphone can reproduce the original audio signal that induced the object's vibrations through a speaker. that's what I have studied , do you have any other idea i assume? Mar 30, 2014 #4 davenn. I type in 'Laser Microphone' to find information on just that. A New Era of Ultrasound Inspection. When a person within a room talks, sound waves cause micro-vibrations on many surfaces in and around the room; for example, the window pane. It has flat and wide frequency response by utilizing the self-coupling effect. Starlight laser specifications: Wavelength: 650nm Divergence (Spot Size or Beam Diameter. Laser Doppler vibrometry brings more accurate microphone calibration. By using the photo-electromotive-force (photo-EMF) sensors, we present data indicating the real-time detection of surface displacements as small as 4 pm. Laser-Accurate technology revolutionizes the very concept of the microphone, trading mechanical parts movement for the patented and incredibly precise measurement by a laser of the movement of. The SuperCam instrument suite onboard the Mars 2020 Perseverance rover includes a microphone used to complement Laser-Induced Breakdown Spectroscopy investigations of the surface of Mars. The microphone is highly sensitive, capable of picking up whispers and transmitting them to the headphones simultaneously. 1 • September 5, 2007 11:24 AM @sparky. A microphone converts the pressure waves caused by sound into vibrations within a coil which transforms the vibrations into electric signals. By pointing a laser beam at the microphone, the researchers could trick a device into accepting commands as though it had heard a verbal cue. IntroductionThe laser microphone is generally used as a surveillance device and is somewhat notorious for its supposed invention and implementation during the cold war period of the. XARION Laser Acoustics GmbH | 643 followers on LinkedIn. Surveillance Devices - Laser Monitoring System, Remote Telephone Bug, Super Ear, Bionic Ear, Automatic 5Hr Recorder, VHF Telephone Transmitter, Micro UHF Room Transmitter, Tele Monitor 2000, Wrist Watch Camera, Computer Snooper, Digital Vehicle Tracking System, Counterfeit Detector Key Chain, Envelope X-Ray Spray. As if this doesn't make reception difficult enough… the greater the angle of. EurLex-2 One of the tech teams had trained a laser microphone at the target's windows. The inventor of the MP3 digital audio format has developed a laser microphone that eliminates mechanical interference. Laser Beam Microphone : 13 Steps (with Pictures). Spectradome Introduces the Most Reliable Laser Microphone in the World SPECTRA LASER: a professional Laser microphone series for remote audio surveillance on a beam of light!. The laser/smoke microphone uses a laser to measure the deflections that sound makes in a steady stream of smoke - which is virtually weightless. These electric signals can then be sent by wire or. Our Spectra Laser microphones are professional laser audio surveillance tools that will allow law enforcement professionals to surreptitiously listen in . Features: Laser audio accessories; Model: Bluetooth Karaoke Microphone; Colour: Pink; Compatibility: Bluetooth enabled smartphones and tablets; Connectivity: . It has even been reported that the CIA used a \"laser microphone\" to determine that a building in Abbottabad contained a previously unseen . I used a telescopic sight and discovered they have a window with what looks like a laser microphone setup that they use only during the DAY, exclusively, inside an unused 2nd floor guest room. MOAM, Multichannel Opto Acoustic Microphone for Audio Monitoring, Optical Acoustic Monitor, Infrared Laser Microphone, Optical Acoustic Laser Microphone, Microphone Long Distance Audio Monitoring, emax 2510, OAM-1000, OAM-2000, Multi BEAM, MultiBEAM. Since there are many different styles of laser pointer, you may have to experiment with clip lead placement to get the. SuperCam is a rock-vaporizing instrument that will help scientists hunt for Mars fossils. Smoke/Laser Microphone Captures “Pure Sound” With No Interference. Find out about some top laser printers on the market. One of the fastest-growing microphone brands in the world, sE blurs the line between \"affordable\" and \"professional\". The lasers return at different angles due to the . It can be used to eavesdrop with minimal . This is the reason we call this a passive technique to recover remote sound -- we do not need to actively shine laser light on the object, but rather just observe the light that is already. A laser microphone using lasers to bounce sound at source. The Laser Microphone project by KAIlab, was introduced to the IKLECTIK’s audiences as part of the ‘IKLECTIK presents series‘, on the 22 February 2020. A Laser MicrophoneUtilizing the sensitivity of a Michelson interferometer to detect vibrations. First, a pulse of laser light would heat up the microphone's diaphragm, which would expand the air around it and create a bump in pressure just as sound would. The Laser is not designed to be left on during use. As an additional feature, the laser microphone is also able to transmit audio via amplitude-modulated laser signal, capture the laser signal, and output the audio. Import quality Laser Microphone supplied by experienced manufacturers at Global Sources. From Wikipedia, the free encyclopedia A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. Company logo, store promotion exhibition. Rather than being sent directly to the photo-EMF sensor for deciphering as in conventional PPLV systems,. A laser microphone is a security monitoring gadget in which a laser beam is used for detecting audio vibrations across faraway targets, which are normally walls or glass of homes or offices. I am using a cheap 5mW red laser pointer (SYD1230, if that matters). Smoke/Laser Microphone Captures \"Pure Sound\" With No Interference. Description: Vocal & instrument mic, full, clear sound with slight bass proximity, for small to mid-size PA systems Designed, assembled and tested by Audix in the USA, the OM2 is a dynamic vocal microphone used for a wide variety of live and studio applications. MicFX LASER CUT BLACK MICROPHONE SLEEVE. A shotgun microphone can record up to 12 hours of sound. Material permanente: 1 microscópio de varredura espectral a laser (Leica) acoplado ao computador com análise . Laser Microphone Detection. We have found a way, however, to make the impossible possible: our SPECTRA Laser D+ and M+ models are currently the only Laser microphones in the world to currently allow that kind of performance. All orders are custom made and most ship worldwide within 24 hours. The main objective of this project is the design and construction of a laser microphone. Laser Microphone Gifts & Merchandise. In the figure below you can see the most common used with the Arduino. Microphone calibration is an important issue for noise monitoring stations, sound power measurement systems and audiometric equipment, among other applications. The laser beam is assumed to be Gaussian. Researchers at the National Institute of Standards and Technology (NIST) have conducted the first. Used to listen in on conversations. Long Range Spying Using Laser Microphone. The modulated, pulsed laser light is transmitted from the microphone for. It does so by bouncing a laser beam off of a thin, reflective surface, such as a window, in order to record the vibrations caused by sounds on the far side of the surface. Laser Microphone manufacturers, China Laser Microphone. This handheld sensor allows you to hear through normally sound-impervious materials at great range. Interrupting the laser beam with your hand will cause the recognizable sounds coming through the speaker to disappear. The reflected beam is rotating clockwise as it sweeps across the input surface of a collimating lens but changes direction to be always horizontal after the lens' exit surface as it moves, or scans, downward. How It Works: Laser-Based Microphone Calibration. Here's a surprisly simple way to build yourself a laser-based listening device. A team of investigators at Ryerson University in Toronto used high-frequency sound waves to create. Most microphones are electret condenser microphones, which work by using a polymeric diaphragm . I believe this to make it harder to detect the laser or infrared emissions from their setup. Laser technology lends BenchMike units.","domain":"optical_engineering"}
{"url":"https://www.theholisticvet.co.uk/laser/","date":"2022-05-27T21:05:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663006341.98/warc/CC-MAIN-20220527205437-20220527235437-00365.warc.gz","language_score":0.9337013363838196,"token_count":165,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__44734510","lang":"en","text":"L.A.S.E.R. or light amplification by stimulated emission rays is a means of directing highly concentrated coherent light at a concise wavelength to the muscles, tissues, organs, connective tissue, formed elements of the blood and the living matrix of the body. Laser light then communicates to the cells on a very basic and powerful level.\nLow Level Laser Therapy (LLLT)\nLow-level laser therapy, also known as cold laser therapy, uses low-intensity lasers to a whole range of conditions. The laser, which is a concentrated form of light, penetrates the skin, reaching the tissue it is meant to help. Cells absorb the light and turn it into usable energy that can go toward reducing pain and inflammation and speed up wound healing.","domain":"optical_engineering"}
{"url":"http://www.code3pse.com/products/product_info/Police/24Volt/C_QMB","date":"2017-03-25T03:46:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218188785.81/warc/CC-MAIN-20170322212948-00386-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.7428297400474548,"token_count":235,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__211089906","lang":"en","text":"Quadrant Mini Bar\nPerformance Proven LED Technology at an Economical Price in a Compact Size!\n- Available in Red, Blue, or Amber lens (or Clear Lens with Amber LEDs)\n- 4 LEDs per light module\n- Polycarbonate lenses and base\n- Magnetic/suction cup mount and Permanent mount standard\n- Magnets spring loaded to allow mini bar to conform to uneven mounting surfaces\n- Includes 9 foot straight cord and plug-in lighter cord with flash pattern selection switch built in\n- 19 selectable flash patterns to choose from\n- 11\" L x 2.4\" H (without mounting feet) x 7.3\"D; 3.1\" H (with mounting feet) (79.2 mm H); (280.4 mm L x 62 mm H x 184.4 mm D)\n- 11-30 Volt DC\n- 12V average amp draw less than 1 amp\n- 24V average amp draw less than 1/2 amp\n- Shipping weight: 4 lbs.\n- Meets SAE J845 and California Title 13 photometric requirements\n- 5-Year Warranty on LED Modules","domain":"optical_engineering"}
{"url":"http://www.collegesanduniversitiesinusa.com/g24-led-light-bulb/","date":"2018-11-15T13:13:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039742685.33/warc/CC-MAIN-20181115120507-20181115142507-00428.warc.gz","language_score":0.9288008213043213,"token_count":347,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__27815700","lang":"en","text":"G24-jacks for compact lamps\nThe G24 is a special high-voltage Jack, which long time was reserved for the compact fluorescent tube. Versions are widespread in the industry, as well as in outdoor lighting lamps for operation with compact lamps into G24 used. Often, they are used in large recessed reflector luminaires.\nThe construction of G24 lamps\nThe distance of one G24 bulb plug pole is 24 mm socket. Lamps with G24 plug-in base can be equipped with two or four plug-in Poland. Since fluorescent lamps always require a low wattage, G24 jacks are up to 26 Watt rule for services. G24 bring a special versions and the lamps with matching base if several compact lamps are used in a lamp. In this case, each lamp has a firm place in one of the versions. For this reason, the product description contains a number that indicates where the light is at the end.\nG24 LED lamp\nAccording to AceinLand, a G24 Jack can accommodate also LED lamps without more reconstruction with G24 plug-in base. Because a LED lamp with a power consumption by 8 Watt replaced a 26 Watt compact fluorescent bulb, use brings a saving of about 70 percent with LED technology. LED lamps are characterized by durability and robustness. They are impervious to cold, heat, moisture, and vibration and therefore especially suitable for use in large production halls and outdoors. Do LED lamps with G24 plug-in base without ballast, the light is immediately flicker-free with the total luminosity available. LED lamps with G24 plug-in base are free of Leuchtgasen, mercury and other damage.","domain":"optical_engineering"}
{"url":"https://oft.co.za/2021/05/25/taking-the-temperature-of-the-greenland-ice-sheet-with-fiber-optics/","date":"2023-11-30T08:38:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00377.warc.gz","language_score":0.91994708776474,"token_count":247,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__125600567","lang":"en","text":"Scientists have used fibre-optic sensing to obtain the most detailed measurements of ice properties ever taken on the Greenland Ice Sheet. Their findings will be used to make more accurate models of the future movement of the world’s second-largest ice sheet, as the effects of climate change continue to accelerate.\nThe research team, led by the University of Cambridge, used a new technique in which laser pulses are transmitted in a fibre-optic cable to obtain highly detailed temperature measurements from the surface of the ice sheet all the way to the base, more than 1000 metres below.\nIn contrast to previous studies, which measured temperature from separate sensors located tens or even hundreds of metres apart, the new approach allows temperature to be measured along the entire length of a fibre-optic cable installed in a deep borehole. The result is a highly detailed profile of temperature, which controls how fast ice deforms and ultimately how fast the ice sheet flows.\nTo find out more about this article please visit: https://www.technologynetworks.com/applied-sciences/news/taking-the-temperature-of-the-greenland-ice-sheet-with-fiber-optics-348806","domain":"optical_engineering"}
{"url":"http://www.sensofar.com","date":"2016-08-24T04:14:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-36/segments/1471982290765.41/warc/CC-MAIN-20160823195810-00008-ip-10-153-172-175.ec2.internal.warc.gz","language_score":0.8882476687431335,"token_count":205,"dump":"CC-MAIN-2016-36","global_id":"webtext-fineweb__CC-MAIN-2016-36__0__75338591","lang":"en","text":"Two Divisions. One Vision.\nProvides high-end non-contact 3D surface profilers based on complementary confocal, interferometry and focus variation techniques. As a result, the optical profiler systems provide unrivalled versatility for measurements of structure and texture across varying surface scales. All systems measure surface roughness and finish to ISO 25178 standards. From complete set-ups for industry, R&D and standards laboratories, to flexible and fast in-line metrology solutions with small footprint for production processes.\nProvides state-of-the-art in-line inspection systems that assist in the quality assurance of implantable medical components and devices. High-resolution imaging and 3D optical metrology combine to deliver unrivalled surface inspection – reducing costs, minimizing error and slashing inspection time. All features are designed to make the task of acceptance faster, easier and more reliable. Equipped with manual and assisted modes, the systems are ideal for product development and in-line production tasks, respectively.","domain":"optical_engineering"}
{"url":"https://britishmotorcyclegear.com/product/mark-9-compact/?product_added_to_cart=832&quantity=1","date":"2023-09-29T11:14:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510501.83/warc/CC-MAIN-20230929090526-20230929120526-00838.warc.gz","language_score":0.9403511881828308,"token_count":239,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__213941257","lang":"en","text":"The Halcyon Mark 9 Compact Deluxe Aviator Goggle is in the synthetic leather range.\nIt is manufactured in the UK to a very high standard and has a lot in common with the Compact Mark 49 goggle. The chrome-plated solid brass frame is hand-stitched to a soft synthetic leather face mask, and the nose bridge screw is made from quality stainless steel. The lenses are made from polycarbonate which is treated with a scratch-resistant coating. Each lens is housed in an independent frame which can be easily removed from the goggle to allow replacements to be fitted. The head band now also comes fitted with triple silicon, elasticated non-slip strips for the perfect grip when worn over an open face crash helmet..\nManufactured in the UK and based on the original RAF flying goggle of the 1940’s.\nHalcyon Motorcycle Goggles are a popular choice for use with all styles of open face motorcycle helmets.\nHalcyon frames are made in the UK from brass. Most prescription lenses can be accomodated with the Halcyon lens frame by your optician (+6 to -6 lenses).","domain":"optical_engineering"}
{"url":"https://cobic-ex.com/brands/petrel/","date":"2024-02-26T01:31:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474649.44/warc/CC-MAIN-20240225234904-20240226024904-00630.warc.gz","language_score":0.8967275023460388,"token_count":532,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__81027550","lang":"en","text":"Petrel, a UK-based manufacturer, specializes in engineering LED lighting solutions designed for hazardous and industrial environments.\nTheir product range includes high-performance luminaires suitable for Zones 1 and 2, featuring innovative designs that ensure safety, durability, and energy efficiency.\nPetrel-Ex Product Line Up\nPetrel offers a comprehensive range of hazardous area lighting solutions, featuring advanced LED technology and durable designs suitable for Zone 1 and Zone 2 environments. Their product lineup includes the LED Area Light Family, 6 Series, 7 Series Ex d LED Luminaire, XN Series, and the 9 Series, each designed to meet the specific requirements of hazardous and industrial areas.\nLED Area Light Family\nThe LED Area Light Family includes the Mini, Midi, and Maxi frame sizes with lumen outputs ranging from 4,500 to 28,000 lumens. These lights are certified for Zone 1/21 and 2/22 applications, featuring corrosion-resistant aluminum bodies and long service life, making them virtually maintenance-free.\nThe 6 Series is available in both high-efficiency LED and traditional light sources, suitable for Zone 1 gas and Zone 21 dust environments. They feature heavy-duty aluminum castings, an integral terminal chamber, and options for fixed or pivoting mounting brackets. The series offers a variety of lamp options and is designed for low maintenance and high durability.\n7 Series Ex d LED Luminaire\nThe 7 Series Ex d LED Luminaire is designed for high efficiency in Zone 1 and Zone 21, available in sizes from 1-5ft with light outputs up to 10,000 lumens. They are known for their low maintenance, high output LED light source, and energy-efficient control. These luminaires offer motion sensor options and are constructed from impact-resistant polycarbonate and marine-grade aluminum.\nThe XN Series caters to Zone 2 applications, offering LED and fluorescent options with outputs up to 6,637 lumens. These luminaires feature a moulded GRP body and polycarbonate diffuser, designed for unrestricted breathing to eliminate annual inspection costs. They are easy to maintain and install, with options for emergency versions fitted with integral batteries.\nThe 9 Series includes LED and fluorescent options suitable for Zone 1/22 applications, with light outputs up to 5,265 lumens for LEDs and 10,400 lumens for fluorescents. These fixtures offer emergency versions, variable mounting centers, and are constructed from heavy-duty aluminum with polycarbonate end caps and diffusers. The 9 Series is noted for its robust and user-friendly design, providing flexible installation options.","domain":"optical_engineering"}
{"url":"https://te.hcmvp.com/products/1000w-laser-cutting-machine","date":"2024-02-22T21:43:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473824.45/warc/CC-MAIN-20240222193722-20240222223722-00021.warc.gz","language_score":0.8919467329978943,"token_count":155,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__128264236","lang":"en","text":"1000w లేజర్ కట్టింగ్ మెషిన్\nAccurl Fiber Laser Cutting Machine can be used to cut a wide range of materials. Fiber lasers are more effective than other laser sources for cutting highly reflective materials e.g. aluminium alloys, cooper, brass…etc. Varied thicknesses (up to 22 mm of mild steel) can be cut with efficiency and quality. Productivity increases particularly with thin sheet metal with almost zero maintenance and 70% less cutting cost compared to CO2 laser cutting machine.","domain":"optical_engineering"}
{"url":"https://4lasers.com/components/polarization-optics/polarizers/glan-type-polarizers","date":"2018-12-13T07:45:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824525.29/warc/CC-MAIN-20181213054204-20181213075704-00604.warc.gz","language_score":0.8724940419197083,"token_count":401,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__243422360","lang":"en","text":"- Material: α-BBO, calcite and YVO4\n- High extinction ratio over a wide wavelength range (200 nm to 4000 nm)\n- Air-spaced configuration\n- Minor transmitted beam displacement and deviation\n- Single layer MgF2 coating for broadband use\n- Optical isolation\n- Polarization cleaning\n- Laser power attenuation\nGlan-type polarizers are based on birefringence phenomena in transparent crystalline material. Therefore, they are sometimes called as birefringence polarizers. These polarizers consists of two right-angle prisms separated by an air-gap to eliminate the adhesive and reduce laser damage. The angle of a boundary between the crystalline material and an air-gap is chosen so that the total internal reflection (TIR) for the ordinary wave occurs. The optical axes of prisms are aligned parallel to the plane of reflection of an ordinary wave. The reflected wave is absorbed in the housing, if it is Glan-Taylor polarizer, while the side surface of the Glan-laser polarizer material is polished and the housing has holes in order to allow the reflected beam to exit. Therefore, Glan-laser type polarizers are suitable for high-power applications. The reflected beam is partially polarized, therefore it cannot be used for polarization sensitive applications, while the transmitted beam has high extinction ratio for both Glan-Taylor and Glan-Laser polarizers. The drawback of Glan-type polarizers is that their acceptance angle is relatively low 6-7°.\n4Lasers offer Glan-taylor and Glan-laser type polarizers made from alpha-BBO (UV), calcite (VIS to NIR) and YVO4 (VIS to MIR) in black anodized aluminium mount. In order to optimize broadband transmission ratio single layer MgF2 coatings are applied onto the Glan-laser polarizer optical surfaces.","domain":"optical_engineering"}
{"url":"https://terratec.no/en/services/surveying/laser-scanning/","date":"2023-01-31T19:27:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499890.39/warc/CC-MAIN-20230131190543-20230131220543-00648.warc.gz","language_score":0.9537550210952759,"token_count":179,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__31689868","lang":"en","text":"Laser scanning is an effective method for documenting and digitizing a building, road or terrain with a high degree of accuracy. Terratec offers laser scanning from many different platforms and we are experts in finding the right solution for your needs, preferably by combining different methods.\n- Terrestrial scanning; High degree of accuracy is often used for building scans\n- Handheld scanning; fast and efficient but lower accuracy\n- Laser scanning by car; fast and efficient method wherever our car can drive\n- Laser scanning by plane; covers large areas with lower accuracy and spot density\n- Laser scanning by helicopter; effective for routes such as power lines and roads\nAfter scanning is completed in the field, the data will be processed to generate the product or analysis ordered by the customer. We have highly qualified people and efficient production methods to ensure a fast and accurate delivery to the customer.","domain":"optical_engineering"}
{"url":"http://hangzhou-freqcontrol-electronic-technology-ltd.imexbb.com/","date":"2018-12-19T11:27:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376832259.90/warc/CC-MAIN-20181219110427-20181219132427-00357.warc.gz","language_score":0.6961881518363953,"token_count":146,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__75576690","lang":"en","text":"Hangzhou Freqcontrol Electronic Technology Ltd\nNO.1106, Crystal International Business Center(CIBC), No.198 Wuxing Rd ,Qianjiang new city, Jiangga\nHangzhou, Zhejiang 310006\nContact: Tianhua Wu, Manager\nCQT dedicated to produce series glass wafers, fused silica wafers, SAW grade lithium tantalate wafers, optical grade lithium tantalate wafers, SAW grade lithium niobate wafers, optical grade lithium niobate wafers. CQT is a leading Chinese manufacturer who involves in piezoelectric crystals, surface acoustic wave filters and the single crystal growth.","domain":"optical_engineering"}
{"url":"https://socialmediaweek.org/blog/2016/03/liquid-crystal-eye-glasses-can-change-optical-power-real-time/","date":"2018-05-21T11:16:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864063.9/warc/CC-MAIN-20180521102758-20180521122758-00056.warc.gz","language_score":0.9146077632904053,"token_count":383,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__157826962","lang":"en","text":"Liquid Crystal Eye Glasses Can Change Their Optical Power in Real-Time\n“The Deep Optics lenses work by incorporating a layer of transparent liquid crystal that can be changed by an electric current”. This story was originally published on Popular Mechanics.\nA company called Deep Optics is working on new high-tech eye glasses that can change their focus in real-time, depending on distance and type of object.\nAccording to Popular Mechanics, “The Deep Optics lenses work by incorporating a layer of transparent liquid crystal that can be changed by an electric current. The liquid can adjust the refractive index of the lens—the way it bends light passing through—to effectively change the prescription of the glasses according to the distance of the object your eyes are focusing on.”\nThere are sensors in the glasses that track the pupils as the distance between the person and object changes. “A processing unit built into the glasses can use the pupillary distance to calculate exactly how far the user is from the object, and the correct electrical current alters the liquid-crystal layer to provide the perfect prescription in real time.”\nThis article is shared as part of our “The Invisible Hand: Hidden Forces of Technology” series. In 2016, Social Media Week’s global theme will explore the intangible, under-valued processes driving our technology, and ultimately, our decisions, forward.\nAs we become more efficient, dynamic, and diverse human-beings, we have the responsibility to understand the present and future potential of these hidden forces all around us.\nWatch SMW Live\nSMW Insider is a premium video platform that streams more than 180+ hours of talks, presentations, and interviews from leading industry experts.\nWrite for Us\nInterested in sharing your ideas and insights with the world? Become a SMW News contributor and reach 300k readers each month.","domain":"optical_engineering"}
{"url":"https://straevents.org/marzieh","date":"2023-12-04T12:45:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00664.warc.gz","language_score":0.9238476753234863,"token_count":226,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__185335518","lang":"en","text":"Department of Physics, University of Vienna, Vienna, Austria\nIn this paper, the design of induction transducer filters at 532 nm and 1064 nm is studied and this design is comprised of multilayer dielectric materials such as TiO2, SiO2, MgF2, ZrO2, and Ag. The highest throughput of filters is caused by non-absorbent dielectric interference films. On the other hand, the bandwidth is also increased by increasing the number of layers, which is technically difficult to do. One way to solve this problem is to use metal and create an induction filter.\nInduction filters are filters that need to be introduced to many optical concepts such as reflection, crossing, anti-reflection, ejaculation destruction factor, and so on.\nTransactional filters are a type of bandpass filters that pass through a band of wavelengths and reflect other wavelengths.\nTo build these filters we first determine the optical constants, layer thickness, layer admixture, and environment.\nKeywords: Induced Transmission Filter, multi-layer, optic, deposition","domain":"optical_engineering"}
{"url":"https://www.quirpo.com/budget-friendly-binoculars-for-whitetail-deer-searching/","date":"2018-07-18T03:03:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590046.11/warc/CC-MAIN-20180718021906-20180718041906-00098.warc.gz","language_score":0.9395789504051208,"token_count":820,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__14762091","lang":"en","text":"Although a chameleon is primarily known for its color-changing capabilities, there are several other elements that make this creature an extremely interesting study. Additionally, I want to buy a pair of binoculars for my better half who frequently goes to live performance or the football. Rubberised binoculars (with a rubber armoured body) can become fairly sticky throughout the years. It is safe to say that they are the best lightweight binoculars for birding uk binoculars you can own for under $500. For birdwatching the Prostaff 8 × 42 is simply as good as the more pricey Emperor 5 – so you can definitely conserve some $$ by picking them. Both the Nikon Emperor and Prostaff binoculars are in stock (in 8 × 42 and 10 × 42). I have an interest in buying a pair of 10 × 50 binoculars for primarily night time viewing likewise a little day.\nMost of the best binocular substance microscope reviews that our experts check out highlight on the fantastic research performance of the 1421BRI model from VanGuard. The 1421BRI brightfield microscope has a binocular watching head with very little (if any) eye or neck pressure. Utility: As one of the best ranked binocular substance microscopes, the 1421BRI design represents a terrific addition to people that work in veterinary centers and industrial labs. We put in the time to carefully seek advice from the best binocular compound microscope testimonials. One microscope caught our interest throughout the research procedure: the B690A-PCT200INF-PL binocular compound microscope from AmScope.\nKeep in mind, nevertheless, that your eyes will be farther away from the binocular eyepiece than they are for non-eyeglass users. Unless your binoculars are developed to make up for this, you will certainly see a much-reduced field of vision. Optics engineers design binoculars to project the image a couple of millimeters beyond the eyepiece; this range is called eye relief.” Eye relief tells you the range your eye can be from the eyepiece and still see the whole field of view. In any case, the majority of mid to luxury binoculars on the market permit the use while still making use of the glasses.\nBut if you go much beyond 10 times, the binoculars will certainly not only be progressively heavy, however any hand shake will be amplified, and a tripod may be needed to keep the image stable. An exceptional little short article on the mechanics of binoculars and the uses to which they can be put, is to be found at the Astronomy Magazine website. Throughout these 4 pages I will certainly refer to binoculars to suggest their value or otherwise in taking a look at chosen Heavenly bodies. Objective diameter: The diameter of the unbiased lens figures out how much light can be gathered to form an image.\nBarr and Stroud (UK) – sold binoculars commercially and main provider to the Royal Navy in WWII The new range of Barr & Stroud binoculars are presently made in China (Nov . Bausch & Lomb (USA) – has actually not made binoculars since 1976, when they certified their name to Bushnell, Inc., who made binoculars under the Bausch & Lomb name till the license ended, and was not renewed, in 2005. Finally, you wish to get a set of binoculars about which you don’t have to fret.\nThen there are various types of binoculars: you have water resistant, huge, child binoculars, aquatic, searching, night vision binoculars etc . The last thing we want is for you to research study binoculars and identifying scopes and wind up purchasing the wrong model that doesn’t fulfill your needs and/or is overpriced. Bear in mind, like everything in life, even the most expensive designs don’t always indicate the very best binoculars for hunting deer binoculars.","domain":"optical_engineering"}
{"url":"https://www.inksandmore.co.uk/laser-marking-machines/polaris","date":"2023-12-04T17:19:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00888.warc.gz","language_score":0.848235011100769,"token_count":185,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__2173380","lang":"en","text":"3D scanner for marking irregular surfaces\nOur exclusive 3D scanning system can be supplied for this machine, making it possible to scan the piece right inside the marking cabinet. A scan is only needed when the geometry of the part changes.\nOnce the software processes the 3D drawing, it automatically compensates when marking to obtain perfectly straight lines, even on curved surfaces.\nLarge marking area\nWe offer full coverage of the marking area thanks to the XY-axes system that our competitors do not have.\nSpecifically, this ensures that the laser beam is always perpendicular to the surface, even on the corners of the most extensive components), guaranteeing perfect marking.\nThe FlyCad® software developed by LASIT is the only interface between the operator and the machine.\nIt allows management of the 3D model, the customer layout, the marking parameters, the position of the axes, and the ERP system.","domain":"optical_engineering"}
{"url":"https://news84media.com/tech/why-is-image-sensor-size-important-in-photography-how-it-works-know-everything/","date":"2022-09-29T17:25:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335362.18/warc/CC-MAIN-20220929163117-20220929193117-00612.warc.gz","language_score":0.9430879354476929,"token_count":521,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__214628849","lang":"en","text":"In taking good quality photos, not the megapixels, the sensor has a big role.\nIn digital cameras, the sensor does the job of recognizing the color of the film/reel and the image.\nThe sensor picks up the light passing through the lens and the photo is captured\nNew Delhi. The sensor is the most important electronic part of any camera. It helps collect light to form the final image. This means that the better the camera’s photo sensor, the better the chances of getting a good shot as well. Those who do not know the importance of the sensor think that the more megapixels the camera has, the better the photo will be, but in reality this is not the case, because the quality of the image does not depend on the megapixels, but also on the camera’s image sensor.\nTechnical expert Rishi Panchal said, “The importance of the sensor in the camera can be understood in such a way that the photo quality of a 64MP mobile camera is no better than a digital cake camera. 24MP. So whose focus was on both devices – not just the sensor. People need to understand that the size of the image sensor is more important in photography. Knowing this, you will understand that when buying of a camera, better to take a full frame camera or crop sensor.\nRead also: List of waterproof smartphones! Which of these phones would you like for yourself?\nsensor work in camera\nIn the past, film was used to take pictures from the cameras on it. Likewise, now digital cameras have arrived, in which film/reel work is censored. Simply put, a camera’s image sensor is that electronic component that collects the light coming from the lens and helps create an image.\nAlso read: Instagram, focusing on full-screen content, will start testing ultra-high images\nThe importance of the image sensor can also be understood in such a way that the sensor does the work of recognizing color and other elements of an image. This means that the larger the sensor, the better the photo will be clicked. You must have heard of CCD in DSLR cameras. A good camera uses 3 CCD image sensors. Nowadays, such sensors are also arriving in smartphone cameras. In which the sensor captures the light passing through the lens and the photo is taken.\nKeywords: technical news, New Hindi Techniques, New Techniques in Hindi\nFIRST POST: August 10, 2022, 6:29 p.m. HST","domain":"optical_engineering"}
{"url":"http://repairsearch.utcaerospacesystems.com/cap/systems/Pages/isr-systems-business.aspx","date":"2018-02-24T21:36:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815951.96/warc/CC-MAIN-20180224211727-20180224231727-00422.warc.gz","language_score":0.9012734293937683,"token_count":362,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__12671604","lang":"en","text":"The ISR Systems business has contributed to significant advances in ground, air, space and imaging technology for over 85 years. ISR Systems has a significant and growing presence in global defense programs and is dedicated to serving Intelligence, Surveillance and Reconnaissance (ISR) needs in space, air and ground environments.\nWe also provide specialty optics and cameras through Cloud Cap Technology and Sensors Unlimited products. Focusing on ISR mission critical systems and platform capabilities, we work closely with customers to meet requirements, enhanced by complete training, system and field service support.\nISR Systems provides improved personnel protection by enhancing situational awareness capabilities. It has supported every major conflict involving the United States and its Allies up to the current war on terrorism.\nCloud Cap Technology\nCloud Cap technology products are the Preferred Tactical ISR Solution. Our TASE Imaging Systems provide superior image quality and offer the lowest size, weight and power (SWaP) requirement in the industry. Proven in the harshest environments our payloads have flown hundreds of thousands of hours of unmanned and manned in theater military operations, public safety missions and commercial surveillance projects.\nView the Cloud Cap Technology website.\nSensors Unlimited products offer a complete line of products for image sensing in the short wave infra-red (SWIR) sensor portion of the light spectrum that enable users to “see” beyond what the naked eye can detect.\nView the Sensors Unlimited website.\nN2 Imaging Systems\nN2 Imaging Systems is an acknowledged leader in the design and manufacture of compact, low power, visible and infrared imaging systems (near infrared to thermal) used for soldier vision enhancement, surveillance, or threat detection-and-targeting conducted during day, night, or under low visibility conditions.\nView the N2 Imaging website","domain":"optical_engineering"}
{"url":"https://www.hunterwolf.com/hhsa35100/","date":"2020-07-08T21:47:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655897707.23/warc/CC-MAIN-20200708211828-20200709001828-00121.warc.gz","language_score":0.8893409967422485,"token_count":253,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__150036878","lang":"en","text":"LUMIX G X Vario H-HSA35100My favorite zoom / telephoto lens for Panasonic Lumix GH mirrorless cameras.\nIf you are into mirrorless cameras and you need a pretty advanced zoom lens for your stills and videos my suggestion goes to the Lumix GX Vario H-HSA35100, an incredible zoom / telephoto lens, with amazing results for its price. This lens is one of my favorite from the Lumix lens series, and even if I use it for very specific tasks I find its cinematic performance simply epic. Some benchmarks have produced amazing results comparing it to some cinema primes. You can easily find them on the web.\nThe first lens that I recommend for those willing to purchase a Panasonic Lumix GH camera is the excellent Lumix GX Vario H-HSA12035, a 12-35mm lens (which on the mirrorless camera will be a 24-70) incredibly versatile and bright (F2.8), with excellent integrated stabilization, so ideal for video but good for pictures too. With these only two lenses you will safely cover all focal lengths between 24 and 200 mm, from pretty wide panoramas to telephoto focal lengths.\nBest Prices on Amazon","domain":"optical_engineering"}
{"url":"https://mimata.net/tag/small-form-factor-pluggable/","date":"2020-02-26T18:58:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146485.15/warc/CC-MAIN-20200226181001-20200226211001-00303.warc.gz","language_score":0.9088449478149414,"token_count":157,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__58773959","lang":"en","text":"With the increasing demand for higher bandwidth, multiple types of transceiver modules are designed for data transmission, including GBIC, SFP, SFP+, QSFP and so on. Well, what do GBIC, SFP, SFP+ and QSFP stand for? Among them, SFP has been used in popularity for over 15 years.\nThe fiber optic market is filled with options that will improve your connectivity in a matter of seconds. When it comes to transceivers, there are multiple types of modules you can choose from (GBIC, SFP, SFP+, QSFP, X2, CFP, and others), no matter if you opt for an older or newer fiber optic technology. Still, what answers to your needs the best?","domain":"optical_engineering"}
{"url":"https://fighterjetmetals.com/laser-cutting/","date":"2023-12-10T05:21:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101195.85/warc/CC-MAIN-20231210025335-20231210055335-00037.warc.gz","language_score":0.9324175715446472,"token_count":118,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__197334238","lang":"en","text":"Laser cutting is a technology that uses a laser to slice materials. Laser cutting works by directing the output of a high-power laser most commonly through optics. The Laser Optics and CNC (computer numerical control) are used to direct the material or the laser beam generated. The focused laser beam is directed at the material, which then either melts, burns, vaporizes away, or is blown away by a jet of gas, leaving an edge with a high-quality surface finish. Fighter Jet Metals can be contracted to laser cut sheet metal to specific shapes for the aerospace industry.","domain":"optical_engineering"}
{"url":"http://arthurmurraygta.com/ontario/how-to-build-a-telescope-to-see-planets.php","date":"2019-08-22T16:08:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027317274.5/warc/CC-MAIN-20190822151657-20190822173657-00558.warc.gz","language_score":0.914040207862854,"token_count":858,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__5561775","lang":"en","text":"What Telescopes You Need to Observe Stars Galaxies and\nThe planet Mars approaches opposition on March 3, so the next many weeks are the best time to observe the planet until 2014. Many new stargazers are disappointed by their view of Mars in a small telescope. But with a little practice and know-how, you can see a remarkable amount of detail with a... 28/07/2018 · To find planets in the night sky, first move away from any nearby city lights to make it easier to see the lights in the sky. Then, start looking for the brightest lights in the sky, since those are usually planets. Pay attention to the color of light you see to help you identify different planets. For example, if you see a bright white light, you’re probably looking at Jupiter, but if it's\nPLANETS Foundation – Creating new technologies algorithms\nIt represents the path in the sky that brightest planets follow. If you see a bright \"star\" shining with a steady glow on or near this curved line, and the object isn't plotted on the Star Wheel... The planet Mars approaches opposition on March 3, so the next many weeks are the best time to observe the planet until 2014. Many new stargazers are disappointed by their view of Mars in a small telescope. But with a little practice and know-how, you can see a remarkable amount of detail with a\nSee All Eight Planets in One Night Sky & Telescope\nTo see a few dozen Earth twins and characterize their atmospheres, that telescope would need a mirror 12 meters across. That’s bigger than any optical telescope currently on the ground and has how to buy ott inventory It’s one thing to see the planets in our solar system on a piece of paper or through a computer animation, but once you’ve seen the planets through the eyepiece of a high-quality telescope, you’ll gain so much more appreciation for the night sky.\nWhat to See With Your New TelescopeExpert Tips from Sky\n1/04/2014 · The other planets of our solar system aren’t just targets for spacecraft. They’re also worlds you can observe. Even a small telescope will reveal details on the giant planets. Through a medium how to build a conical fermenter cheap To look at planets like Jupiter and Saturn, you will need a magnification of about 180; with that you should be able to see the planets and their moons. If you want to look at the planet alone with higher resolution, you will need a magnification of about 380.\nHow long can it take?\ntelescope When will we have the technology to directly\n- Huge Space Telescope Needed to Seek Life on Alien Planets\n- FAQ5 How to Use a Telescope\n- The telescope big enough to spot signs of alien life on\n- How to Find Planets With a Telescope Sciencing\nHow To Build A Telescope To See Planets\nYou should then be able to see the object in a low power eyepiece with the main telescope. Under dark skies you will not be able to see the crosswires and so an eyepiece with an illuminated graticule is useful. This uses a red led to illuminate the crosswires from the side.\n- 2 Back End Optics. It is composed of lenses and a mirror to re-image the light collected by the telescope on the detector. A collimator lens makes the light rays parallel, a mirror deflects them to minimize the envelope of the whole optical system before a camera lens focusses them on the detector.\n- Then, puny telescopes could see moons, planets and the occasional celestial body. Today, huge lenses like those in the Large Binocular Telescope in Arizona and the Hubble Space Telescope in orbit\n- As you build your telescope, remember the perseverance of Clyde Tombaugh — and also remember Tycho Brahe, who made accurate measurements of the …\n- Kepler is a retired space observatory launched by NASA to discover Earth-size planets orbiting other stars. Named after astronomer Johannes Kepler, the spacecraft was launched on March 7, 2009, into an Earth-trailing heliocentric orbit.","domain":"optical_engineering"}
{"url":"https://www.dilcom.com/en/digital-microscopes-dino-lite.html","date":"2018-11-21T06:48:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039747215.81/warc/CC-MAIN-20181121052254-20181121074254-00158.warc.gz","language_score":0.9250162839889526,"token_count":1306,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__220640638","lang":"en","text":"The Dino-Lite is a compact digital microscope with a lot of new possibilities compared to the traditional microscope. The Dino-Lite can be connected to a computer and allows you to record moving and still images as well as time lapse recording. These can be shared directly over the internet (webcam technology).\n• Industrial inspection: quality control, assembly, repair\n• Life sciences : ear, eye, nail, skin/scalp photography and analysis\n• Printing and textiles: quality control, measurements\n• Educational: science lab, presentation, training, insect & plant study\n• Personal: hobbies, collection documentation, paintings, antiques\n• Professional: law enforcement, conference aid, counterfeit detection\nDino-Lite comes in different versions, developed for specific applications. Depending to the version, magnification ranges from ~10 to 200 to 500x. LED lights are built in in white, polarized, ultraviolet, infrared or a switchable combination. Most versions have calibration and measuring options. Its housing is either composite or aluminum alloy.\nThe healthcare models have the features of the general Dino-Lite models like the built-in LED lights and the possibility to store images and video on the computer, but also the specially designed caps for each application and the availability of a polarization filter on some models. All Dino-Lite’s receive power through the USB port which makes them independent of batteries. All models in this product range are certified according to the Medical Device Directive 93/42/EEC modified 2007/47/EC.\nThe Dino-Lite Universal series provides a broad range of products with the highest image quality, as well as very user-friendly software with comprehensive measurement functions, and several unique hard and software features to satisfy the most demanding user.\nThis range consists of Dino-Lite models with a USB connection with a magnification of up to 200 times and an image resolution of 1.3 megapixel or 5 megapixel. For working with reflective objects you can choose the models with the built-in polarization filter with adaptable polarization. For the best look and feel and enhanced durability we offer models in robust aluminum alloy housing.\nThe Dino-Lite Edge series is a special category within the Universal range, the Edge series provide an even better image quality and greater flexibility. The high-quality optics provide a very sharp, bright and natural color image with very low aberration and vignetting. The exchangeable caps provide for even more flexibility for use in all kinds of professional applications.\nIf you are looking for Dino-Lite products with long working distance, special lighting such as UV or IR or models with a high magnification until 900 times please check one of the other categories.\nFor tasks where extra distance to the object and a larger field of view is required Dino-Lite offers a series of Long Working Distance microscopes. The extra working distance and larger field of view make this series an ideal solution for tasks such as repair, rework or assembly or for working with bulky objects or fragile objects that cannot be touched.\nMicroscopes in this range offer an image resolution of 1.3 megapixel or 5 megapixel, a USB connection and include the user-friendly DinoCapture software. Models with built-in polarizer to reduce reflection or models with an extra robust metal housing are also available. The maximum magnification reaches 140 times which is usually more than enough for this kind of applications.\nSpecifically designed with the needs of the electronics industry in mind Dino-Lite even offers several Electrostatic Discharge Safe models with Long Working Distance (ESD) and a larger Field Of View.\nOne of the most versatile and technologically advanced models within this series is the Dino-Lite AM4115ZTL, which features a magnification from 10x to 140x with a large field of view and a working distance of up to 23 cm making it a unique product way ahead of the market.\nDino-Lite models within the High Magnification series exceed a magnification of 200 times and offer magnifications of 400x, 500x or even a dazzling 900 times. Microscopes in this range offer an image resolution of 1.3 megapixel or 5 megapixel, a USB connection and include the user-friendly DinoCapture software. Models with built-in polarizer to reduce reflection or models with an extra robust metal housing are also available.\nOne of the top models is the Dino-Lite AM4515T8 model. With up to 900x magnification and high-resolution optics it reveals details as small as 1.5 micrometer (µm). It also features a greater working distance at high magnification making it easier to watch and move very small objects under the microscope.\nThese unique features make the Dino-Lite High Magnification models great inspection tools for biomedical and scientific research, material analysis, electronics inspection, or any similar application that requires high magnification, versatility and mobility.\nFor general purpose applications, where high image resolution and advanced hardware and software features are not strictly necessary, the Dino-Lite basic series is a good choice. These Dino-Lite models are affordable and an easy-to-use, but still have the same durability and quality as the more advanced Dino-Lite product series.\nA basic version of the proprietary DinoCapture software is included with each Dino-Lite. The magnification of the microscopes goes from 10 to 70x and around 200x.\nEconomic and easy-to-use solution, mainly for home use and light professional applications.\nWith the DinoEye eyepiece cameras you can turn your conventional microscope into a digital microscope. You can easily replace the ocular (eyepiece) of your non-digital microscope with the DinoEye eyepiece and connect it via USB to your computer. The DinoEye TV models can be connected straight into your TV using a TV connection. With the included proprietary DinoCapture software you have a professional software environment for image or video processing, including calibrated measurement features (USB models only).\nA sturdy and reliable stand solution is a must-have for your high precision Dino-Lite digital microscope. A broad range of stands, caps, microscope tables and other accessories is offered. From affordable basic stands to a square metal base column stand. Or from an advanced XY table to a USB powered backlight. All original Dino-Lite accessories are made at the same high quality design and construction level.","domain":"optical_engineering"}
{"url":"http://itsoptic.com/Testing.php","date":"2023-12-08T12:53:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100745.32/warc/CC-MAIN-20231208112926-20231208142926-00460.warc.gz","language_score":0.9313623905181885,"token_count":169,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__129920222","lang":"en","text":"We are able to carry out fibre optic fault finding and fibre optic testing using an OTDR and visible light source on OS1 9/125, OM1 62.5/125, OM2 50/125 & OM3 50/125 fibre cables.\nAfter the cables are installed and terminated testing can commence. Every Fibre optic cable will need to be tested for continuity, end-to-end loss and then fault found if there are any problems. If it's a long external fibre optic cable with intermediate splices, you will probably want to verify the individual splices with an OTDR also, since that's the only way to make sure that each one is good. If the cabling is for a fibre optic network we will also be testing power, as power is the measurement that tells you whether the system is operating properly.","domain":"optical_engineering"}
{"url":"https://colegolf.ie/blog/mileseey-pf210-600mt-laser-range-finder-with-slope-correction-review/","date":"2024-04-20T04:26:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817474.31/warc/CC-MAIN-20240420025340-20240420055340-00303.warc.gz","language_score":0.928794801235199,"token_count":834,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__176455080","lang":"en","text":"Laser rangefinders have been revolutionary in enabling golfers of all abilities to determine the exact distance from their ball to the target. As impressive as this may be, the high price tag of these devices has turned off even the biggest golf fanatic.\nFortunately, we are beginning to see more affordable laser rangefinders come to the market. This means that you no longer need deep pockets to receive accurate yardage readings.\nIn this post, we are conducting a review of the Mileseey PF210 600mt Laser Range Finder. We will identify the features and benefits and help you decide if this device would add value to your game.\nBased in Shenzhen, China. Mileseey Technology Company has spent the last ten years developing ways for laser measurement technology to be more affordable without sacrificing quality.\nMileseey currently produce a number of different laser measuring products for the construction industury.\nMileseey’s Slope adjusted mode on the PF210 helps you to receive accurate yardage readings from your ball to the target. The slope mode factors in the angle between your ball and the target to ensure optimal accuracy.\nThis feature adds to the convenience of the PF210 by vibrating when it locks onto the flagstick. This notifies you that the distance displayed is to the pin. This saves you time, figuring out if the device is measuring to the flagstick or another object around the green.\nFrom my experience, this rangefinder picks up the flag marginally slower than a Bushnell. But, it is almost five times less than the price of the industry heavyweight.\nWhile the maximum range on this device is 400 metres less than competitor devices, it is sufficient for the average golfer. With a total range of 600 metres, you will have no problem measuring the distance to hazards, doglegs and the pin, even on longer par 5’s.\nThe accuracy of a laser rangefinder is determined by how close to the actual yard the measurement is. With this in mind, the PF210 performs admirably. Mileseey claims that it is accurate to 0.5 metres, which is impressive, considering many premium rangefinders achieve accuracy to the nearest yard.\nYour laser range finders magnification is vital for ensuring a clear view of targets from a long way out. The more magnification your device has, the easier it is to clearly detect targets from hundreds of yards away. Considering the affordable price of this device. It is impressive to see it sporting 6x magnification.\nIf you are faced with multiple obstacles in front of you. Then you can switch to scan mode. It provides the yardage to different points as you scan. This saves you time and prevents you from having to measure the yardage to each area of interest.\nIts price tag is where the Mileseey PF210 blows its competitors out of the water. At €99.95, you will struggle to find a quality range finder, let alone a laser range finder. However, the PF210 is not only a laser rangefinder it is highly accurate and offers features that you would expect to see in a premium laser rangefinder.\nIts functionality, and highly affordable price tag, make this an excellent value for money product.\nThere are multiple benefits from purchasing a laser rangefinder online from Cole Golf. First and foremost, there are no UK import duties or taxes payable as it is shipped directly from Kildare.\nSecondly, your purchase is covered by a one year warranty provided by Cole Golf. And, finally, we deliver your order within two working days by DPD.\nSurprisingly, our review of the Mileseey PF210 600mt laser range finder has showcased a premium quality product at an entry-level price. Its slope functionality, flag lock, 6x magnification and phenomenal accuracy make it challenging to understand why it is more affordable than devices with similar features.\nSo, the bottom line is, if you always wanted a premium range finder, but could never afford it, now you can. The Mileseey PF210 600mt Laser Range Finder awaits.","domain":"optical_engineering"}
{"url":"https://beritaharian.my/sony-introduces-the-g-master-fe-300mm-f2-8-gm-oss-the-worlds-lightest-large-aperture-telephoto-prime-lens/","date":"2024-02-25T16:23:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474617.27/warc/CC-MAIN-20240225135334-20240225165334-00114.warc.gz","language_score":0.9056463837623596,"token_count":973,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__142868510","lang":"en","text":"Sony Introduces the G Master FE 300mm F2.8 GM OSS, the World’s Lightest Large-Aperture Telephoto Prime Lens\nSony is happy to announce the release of the world’s lightest 300 mm telephoto prime lens, the G MasterTM FE 300mm F2.8 GM OSS, as well as a 35 mm full-frame αTM (AlphaTM) E-mount lens with a maximum aperture of F2.8 (product name SEL300F28GM). This lens offers the supreme detailing which is the hallmark of G master as well as high-speed, high-precision AF (autofocus) performance. In addition, the lightweight design of approximately 1470g (excluding tripod mount) and excellent weight balance allows you to capture sharp, dynamic and decisive moments such as those of fast-moving sports or agile animals with handheld shooting. Paired with the Alpha 9 III that is simultaneously announced, high-speed continuous shooting with AF/AE tracking up to 120 frames per second is possible. Even subjects with complex and diversified movements can be tracked with high precision. It is an ideal match for lightweight camera bodies by reducing the load on the photographer, minimising fatigue during long handheld shooting sessions. It is also compatible with an optional teleconverter, allowing you to shoot in the telephoto range of up to 600 mm (equivalent to 900 mm when using with an APS-C camera). Main features G Master telephoto lens that captures decisive moments with high resolution and beautiful bokeh Incorporating Sony’s cutting-edge technology, the G Master’s high-resolution performance and beautiful bokeh make the subject stand out clearly and precise AF captures decisive moments such as sports, news reports, events, and wildlife photography. An innovative optical design that includes three Super ED (Extra-low Dispersion) glass elements and one ED glass element is effectively placed to suppress chromatic aberration and achieve high resolution and contrast across the entire frame. Outstanding resolution and contrast are maintained right out to the image edges, which also allows for more flexible cropping and editing. Gorgeous, creamy bokeh that is a hallmark of G Master design ideally complements the lens’s 300 mm focal length and F2.8 maximum aperture, allowing the use of narrow depth of field to make subjects stand out from the background. Each lens is individually calibrated during manufacture to optimise bokeh quality. An 11-blade circular aperture mechanism contributes to smooth ball bokeh. High-performance AF that captures dynamic moments and high-speed continuous shooting with AE/AF tracking up to 120 frames per second2 The combination of two latest XD (extreme dynamic) Linear Motors and control algorithms provides high-speed, high-precision, and low-vibration AF performance. When combined with the simultaneously announced Alpha 9 III, it enables high-speed continuous shooting with AF/AE tracking of up to 120 frames per second. This allows you to capture dynamic subjects without missing a moment’s opportunity, even when shooting scenes where the subject moves quickly, such as sports or animals, or scenes where the subject moves erratically, such as at events. In addition, high AF performance is demonstrated even when the separately sold teleconverter3 is attached. Exceptional mobility and comfortable operability that support professionals in the field Extensive weight reduction measures make FE 300mm F2.8 GM OSS the lightest in its class1, at approximately 1470g (excluding tripod mount) and has been designed with consideration to weight balance. The internal lens barrel uses durable magnesium alloy to achieve both high robustness and light weight. The weight is not concentrated at the front of the lens barrel, making it highly stable and allows for agile and accurate panning while handheld shooting. In addition, MODE3, which provides enhanced viewfinder stability and optimises the image stabilisation algorithm, allows you to accurately capture dynamic scenes. In addition, when using with the Alpha 9 III, you can assign “preset focus” to the function ring that allows you to instantly adjust the focus to any position. Furthermore, the camera features comfortable operability that supports professional shooting, including focus hold buttons placed in four locations that allow you to assign your favorite functions from the camera body. Availability The new FE 300mm F2.8 GM OSS will be available in Malaysia from Q1 2024 (calendar year). A product video on the new FE 300mm F2.8 GM OSS can be viewed here (https://youtu.be/DHuPeArd43I). A video message from a world-renowned sports photographer can be viewed here (https://youtu.be/lev4VsavT60).","domain":"optical_engineering"}
{"url":"https://www.iae.uni-rostock.de/en/research/optoelectronics-and-photonic-systems/optical-velocity-measurement-technique/","date":"2023-09-25T00:10:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.96/warc/CC-MAIN-20230924223409-20230925013409-00867.warc.gz","language_score":0.8777208924293518,"token_count":671,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__139953480","lang":"en","text":"Spatial filter technique based on array sensors\nThe optical spatial filter velocimetry is characterized in contrast to other non-invasive measuring systems (like the laser Doppler anemometry or the particle image velocimetry) by its simple design and the relatively low-prized system components. To measure the velocity, length, and position of objects the light that is scattered back by the inhomogeneity of the surface is superposed by an optical grating . The spectrum of the original signal contains information on the velocity distribution. The filter effect of the grating and the thereby accomplished pre-processing achieves a high dynamic range. Furthermore, this technique can be used for measuring the velocity and size of spherical particles.\nAt the Institute of General Electrical Engineering at the University of Rostock, the optical spatial filter technique has been used for years and has been further developed using optical CCD and CMOS-array sensors , . By weighting of individual pixels, or pixel lines, a very accurate virtual grid is generated (cf. fig. 1). Due to the investigation of the spectral distribution of spatial filter signals and statistic calculations of structure size distributions, new potential applications can be revealed, e.g. in flow measurement technology and in the analysis of object surfaces.\n Y. Aizu and T. Asakura, \"Principles and development of spatial filtering velocimetry,\" Applied Physics B: Lasers and Optics, vol. V43, pp. 209-224, 1987.\n K. C. Michel, O. F. Fiedler, A. Richter, K. Christofori, and S. Bergeler, \"A novel spatial filtering velocimeter based on a photodetector array,\" Instrumentation and Measurement, IEEE Transactions on, vol. 47, pp. 299-303, 1998.\n S. Bergeler and H. Krambeer, \"Novel optical spatial filtering methods based on two-dimensional photodetector arrays,\" Measurement Science and Technology, vol. 15, pp. 1309-1315, 2004.\nLow-cost sensors for optical velocity and position determination\nWhen optically determining the velocity of surfaces, particle-loaded flows and piece goods in production, Laser-Doppler technique, spatial filter measuring technique as well as correlation (in conjunction with single receivers or Array sensors) are employed. In the future, the trend is towards cost-efficient and miniaturized solutions for non-contact optical determination of position, velocity, and acceleration.\nEspecially in the development of PC mouse sensors, the development is highly promoted, focusing on position determination. The potential of these sensors to be used for the online determination of object velocity is explored. Fig. 2 shows two commercially used mouse sensors. The ADNS-5050 (AvagoTechnologies 2008) determines the offset between the recorded images of the 19x19 big pixel array and provides the changes in the form of increments. Another sensor is the laser Doppler sensor PLN2020 (Philips 2006), which enables measurements even on finest surface structures.\nResearch group spatial filter technique\n- Dr.-Ing. Martin Schaeper\n- Dipl.-Ing. Robert Kostbade","domain":"optical_engineering"}
{"url":"https://nexcl.unlv.edu/job-openings","date":"2024-02-25T14:11:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474617.27/warc/CC-MAIN-20240225135334-20240225165334-00823.warc.gz","language_score":0.9065982103347778,"token_count":321,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__64314137","lang":"en","text":"Qualified applicant will perform research on the synthesis and evolution of functional interfaces. The overarching goal is to understand perovskite photovoltaic devices. Materials of interest include halide perovskites, particularly growing both 2-dimensional and 3-dimensional variants. Advanced characterization techniques such as in situ characterization during synthesis and work at various synchrotron sources and free electrons lasers will be performed to characterize the samples.\nQualified applicant will perform advanced X-ray characterization measurements, and other supporting characterization studies, on simplified photoelectrochemical devices. The overarching goal is to understand charge transport at functional interfaces within the devices. Materials of interest include halide perovskites, selective contacts, and complex oxides. The X-ray measurements will require the use of free electron laser facilities and synchrotron sources, to be performed at Lawrence Berkeley National Laboratory, SLAC National Accelerator Laboratory, and international facilities. Measurements will include a variety of surfaced based measurements, including surface diffraction, X-ray absorption and X-ray nonlinear optics. These measurements will require management and analysis of large data sets.\nThe qualified applicant will synthesize and characterize halide perovskites and perovskite thin films. Materials characterization of synthesized products via techniques such as optical spectroscopy, electron microscopy, X-ray diffraction, light scattering, and vibrational spectroscopy will be necessary. Advanced materials characterization including in situ spectroscopy as well as cutting edge X-ray free electron laser work including transient absorption, and X-ray nonlinear optics.","domain":"optical_engineering"}
{"url":"https://sustaineducation.org/team/","date":"2024-04-13T23:13:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816853.44/warc/CC-MAIN-20240413211215-20240414001215-00498.warc.gz","language_score":0.9406178593635559,"token_count":240,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__32389600","lang":"en","text":"Marie Skłodowska-Curie Action Research Fellow in the Cavendish Laboratory at the University of Cambridge, and named of the Women in Engineering Society’s Top 50 Women in Engineering in Sustainability.\nBeth is also a Country Programme Manager with The Centre for Global Equality, working on the Climate Compaitble Growth Initiative.\nEngineer working on optical computers. Formerly studied novel materials for solar energy generation.\nStuart was the recipient of the prestigious University of Cambridge Vice Chancellor’s Award for Social Impact for his leading role in developing novel climate education resources, which has now become Sustain/Ed.\nLecturer in Energy and Royal Society Research Fellow in Chemical Engineering & Biotechnology and Physics Departments, University of Cambridge.\nSam is a TED Fellow, and was listed by the MIT Technology Review as one of the 35 under 35 innovators in Europe. Sam is co-founder of Swift Solar, developing lightweight perovskite solar cells.\nAs scientists we have a responsibility to share our discoveries and expertise.\nAs researchers we endeavour to bring truly modern, sustainable solutions into the primary school classroom.","domain":"optical_engineering"}
{"url":"http://www.parrotfishdive.com/these-are-the-benefits-of-thermal-camera-that-you-should-know/","date":"2020-05-26T04:12:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390442.29/warc/CC-MAIN-20200526015239-20200526045239-00346.warc.gz","language_score":0.9210287928581238,"token_count":355,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__158762078","lang":"en","text":"For factory industries, industrial machinery is a very important object. It is important to keep the object so that the object can still work properly. therefore, all factory owners must use a thermal imaging camera so that they can measure the temperature of their factory machine properly. You can use the best budget thermal imaging camera so you can measure industrial machinery in your factory.\nYou have to know the function of a thermal camera. You can use a thermal camera to measure an object that has a high temperature. Why is a thermal camera? If you measure temperatures over a wide area and require a comprehensive view of the environment simultaneously, thermal cameras are a tool that is second to none. Being able to detect temperatures from several points at the same time and transfer this information directly to thermal images, the thermal camera beats the infrared thermometer in aspect as an IR thermometer that can only measure one place at a time.\nIn terms of speed and usability, there is no IR thermometer that can compete with thermal camera systems. The only disadvantage of this system is the larger price range. Thermal cameras use a number of expensive components and are therefore much more expensive than IR thermometers.\nThe advantages of thermal cameras:\n– A comprehensive view of an area\n– It has a variety of models with different abilities\n– It can capture images instantly and can be seen later.\n– Easy to grip with camera design\n– It can be directly downloaded to the PC\n– There is a lens selection to increase camera capabilities\n– Very sensitive to changes in ambient temperature (sensitivity level depends on the model)\n– Prices start from under £ 1000\n– It can see in the dark to look for signs of heat\n– It can see through bad weather conditions such as fog and snow","domain":"optical_engineering"}
{"url":"http://customlsr.com/","date":"2017-04-23T13:42:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118707.23/warc/CC-MAIN-20170423031158-00458-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9384482502937317,"token_count":161,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__229387674","lang":"en","text":"Custom Laser - Discover the Power of Laser\nCustom Laser is one of Minnesota's leading laser technology companies, specializing in laser solutions for manufacturing companies nationwide.\nCustom Laser will integrate a laser system into your production process that will exceed conventional manufacturing methods, and generate long term savings.\nThe Equipment Manufacturing group provides equipment design and development services. Our engineering staff has designed equipment in commercial industry for nearly 30 years, servicing the automotive, medical, aerospace, semiconductor, and packaging industries.\nThe Contract Manufacturing group maintains a fleet of CNC lasers to solve your individual needs. Let us solve your manufacturing needs without YOU having to purchase, maintain, or operate the equipment. Custom Laser also provides Engineering Services such as product design, development, equipment qualifications, and product validation services to support your outsourced manufacturing needs.","domain":"optical_engineering"}
{"url":"http://physics.csustan.edu/Ian/Spectroscopy/LectureNotes/Monochromator/Monochromator.htm","date":"2018-01-22T10:12:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084891277.94/warc/CC-MAIN-20180122093724-20180122113724-00460.warc.gz","language_score":0.8572559952735901,"token_count":1006,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__117381813","lang":"en","text":"Phys 4910 - Spectroscopy\nThe monochromator in our laboratory is a SpectraPro\n750i 75 cm Czerny Turner monochomator from Roper\nScientific (now part of Princeton\nThe following are some of the specifications\nare taken from the Roper Scientific web site. (Note: they are specific\nto an installed 1200g/mm grating). The indented notes are the implication\nof these specifications to our laboratory.\nFocal length: 750 mm, Aperture Ratio: f/9.7\nFocal length refers to the mirrors which form part of the Czerny Turner\nAperture ratio is a measure of the light collecting ability. The larger\nthe diameter of the mirrors the more light is collected by them, and the\nthe f number. With an f number of 9.7 the diameter of the mirrors is 750\nmm / 9.7 = 77 mm\nOptical Design: Imaging Czerny-Turner with original polished aspheric mirrors\nOptical Paths: 90° standard, 180° and multi-port optional\nThe SpectraPro-750 can be equipped with up to four ports (2 entrance/2\nexit) for maximum versatility. Multi-port configurations permit using the\nSpectraPro-750 with multiple detectors. Our monochromator is equipped with\none entrance port and two exit ports\nIn the straightforward configuration the exit port is equipped with a diode\nIn the sideways configuration the exit port is equipped with an exit slit\nand a photomultiplier.\nExit port selection is computer controlled for automated selection of detector.\nOperating Range: 185 nm to the far infrared with available gratings and\nA wavelength of 185 nm is well into the ultraviolet part of the spectrum.\nIt is the minimum wavelength that will pass through dry air without being\nabsorbed. Monochromators operating below this wavelength need to be evacuated\n(and hence the region is known as the vacuum ultra violet (VUV)) or filled\nwith a non absorbing gas such a helium. With helium operation is possible\ndown to 50.4 nm, the wavelength of the 1s-2p resonance transition in helium.\nBetween 185 nm and about 300 nm although the radiation will pass through\nair it will not pass though glass. This is not a problem for the monochromator,\nbut it a problem for the detectors. Below 300 nm detectors have to be fitted\nwith quartz windows which will let short wavelength radiation through.\nOur detectors have glass windows, and so are limited to operation above\nabout 300 nm.\nResolution: 0.023nm at 435.8nm, 10µm slits,\nDispersion is a measure of how well the light is split into its different\nwavelengths. It is quoted as the difference in wavelength corresponding\nto a physical separation of 1 mm in the spectrum. A small number is better,\nsince for maximum resolution you would like the exit slit of the monochromator\nto let through light of wavelength, but to block light of a slightly different\nUsing the 1800 l/mm grating; 0.75 nm/mm (nominal)\nUsing the 600 l/mm grating; 2.2 nm/mm (nominal)\nRepeatability: ±0.05nm, Drive Step Size: 0.0025nm (nom.)\nDetector Coverage: ~28nm across a 1.0” wide focal plane (~56nm: 600g/mm\nUsing the diode array, this the width (in nanometers) of the portion of\nthe spectrum which viewed at one time. Wider spectra are obtained by recording\nmultiple portions and the 'gluing' them together using the software.\nWhen using the 1800 l/mm grating (see below) the detector coverage should\nbe ~ 19 nm.\nThe diode array width is 1024 pixels. The maximum possible resolving power\nis therefore 19 nm / 1024 = 0.019 nm.\nThis specification has no relevance when using the photomultiplier.\nStandard Slits: Micrometer adjustable from 10µm to 3mm wide. Slit\nheights: 4 or 14mm\nGrating Mount: Triple Indexable grating turret for 1, 2, or 3 gratings.\nWe have two different gratings installed\n600 lines/mm, blazed\nfor 500 nm\n1800 lines/mm, blazed\nfor 500 nm\nFor all experiments we shall us the 1800 l/mm grating, since it gives the\nhigher resolution. The other grating is normally only used for applications\nin which a wider portion of the spectrum is to be viewed at one time, but\nwith lower resolution.\nScan Linearity: The SpectraPro-750i scans linear with respect to wavelength","domain":"optical_engineering"}
{"url":"https://www.nadaconvention.org/NADA2019/Public/eBooth.aspx?BoothID=136238&Task=Products&SSID=2005","date":"2020-02-24T06:00:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145897.19/warc/CC-MAIN-20200224040929-20200224070929-00314.warc.gz","language_score":0.9316585063934326,"token_count":200,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__185091031","lang":"en","text":"FASTLIGN is the first ever touchless drive through alignment checking system, tried and true in dealerships since 2014. FASTLIGN is an autonomous system that checks vehicle alignment status in virtually no time, without touching the wheels or vehicle, measuring all four tires with laser-based technology and rock solid accuracy. This precise measurement occurs in 3 seconds as a customer drives into your service area. 4 tires, 3 seconds, it's that simple. Our advanced laser and optical technology maps a high-resolution profile of a vehicle’s wheels as they roll past two towers, analyzing each individual tire’s direction of travel and relationship to the other.\nHigh definition cameras capture images of the vehicle and license plate as the vehicle drives through the scan towers. FASTLIGN automatically identifies the license plate, VIN, Year/Make/Model of the vehicle and compares the scan results against OEM specifications. Resulting in an instant alignment assement report to share with your customer.","domain":"optical_engineering"}
{"url":"http://techbotinc.com/canon-eos-77d/","date":"2019-01-20T03:33:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583690495.59/warc/CC-MAIN-20190120021730-20190120043730-00523.warc.gz","language_score":0.8612848520278931,"token_count":890,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__207368864","lang":"en","text":"Canon EOS 77D will sit between the company’s established Rebel line of entry-level DSLRs and also the additional enthusiast-oriented 80D. (The 77D is actually the replacement to the Rebel T6s/EOS 760D.) however despite sitting below the 80D within the lineup, it shares that more advanced model’s 24.2MP sensor with Dual Pixel autofocus and adds an updated Digic 7 processor to the mix. Users opting to focus using the optical viewfinder will be take with a 45-point all-cross-type AF system and 7650-pixel RGB+IR metering system, which work together for better accuracy and subject recognition.\nIt also packed with an ISO range of 100-25600, continuous 6 fps burst shooting with autofocus (4.5 fps when using Live View), 1080/60p video capture and wireless connectivity featuring NFC and Bluetooth LE.\nUsers choose for the 77D over the T7i will gain built-in interval and bulb timers, greater custom controls including an AF-On button, a top LCD panel and an eye sensor to shut off the rear LCD when the camera is ribbed for shooting.\nThe Canon EOS 77D is scheduled to be available in April 2017 for $899.99 body only, $1049.00 with the new EF-S 18-55mm F4-5.6 IS memory lens and $1,499.00 with the 18-135mm F3.5-5.6 IS USM lens.\nFocused on Innovation\nThe EOS Rebel T7i and EOS 77D both feature an optical viewfinder with a 45-point All Cross-type AF system to help enable more precise focusing. In live view mode, both cameras utilize Canon’s Dual Pixel CMOS AF to deliver the world’s fastest AF focusing speed of 0.03 seconds.1 This technical achievement allows users to find their subject, focus accurately, and capture the shot more quickly than ever before. Both models also have built-in Wi-Fi®2, NFC3 and Bluetooth®4 technology for easy exchange of images.\nIn addition to the focusing enhancements, common features of the EOS Rebel T7i and EOS 77D cameras include:\n- Optical Viewfinder with a 45-point All Cross-type AF System\n- Fast and accurate Dual Pixel CMOS AF with Phase-detection\n- 24.2 Megapixel CMOS (APS-C) Sensor\n- DIGIC 7 Image Processor, ISO 100–25600\n- Built-in Wi-Fi®2, NFC3 and Bluetooth®4 technology\n- Vari-angle bit Screen, 3.0-inch LCD\n- movie Electronic IS\n- HDR movie & Time-Lapse movie\n- High-speed Continuous Shooting at up to six.0 frames per second (fps)\nThe Canon eos 77D is scheduled to be out there in Gregorian calendar month 2017 for Associate in Nursing calculable retail worth $899.99** for the body only, $1,049.00** with the new EF-S 18-55mm f/4-5.6 IS memory lens and $1,499.00** with the EF-S 18-135mm f/3.5-5.6 IS USM lens respectively. For additional data please visit, usa.canon.com/eos77d.\nEF-S Lens and Remote accessory Utilizing Bluetooth® Technology\nThe new Canon EF-S 18-55mm f/4-5.6 IS memory lens is sort of 20 p.c smaller than the EF-S 18-55mm f/3.5-5.6 IS STM lens, while not sacrificing image quality. options of the lens include:\nCompact-size, commonplace camera lens with High Image Quality\nLead Screw-type memory\nImage Stabilization at up to 45 Stops of Shake Correction\nThe Canon EF-S 18-55mm f/4-5.6 IS memory lens is scheduled to be out there in early Gregorian calendar month 2017 for Associate in Nursing calculable retail worth of $249.99**. For additional data please visit, usa.canon.com/efs1855stm.","domain":"optical_engineering"}
{"url":"http://metrologiaspa.com/en/services/reverse-engineering.html","date":"2019-05-21T17:31:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256494.24/warc/CC-MAIN-20190521162634-20190521184634-00376.warc.gz","language_score":0.9297225475311279,"token_count":247,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__71028062","lang":"en","text":"Metrologia SpA has, among its staff, some of the best engineers in the country, able to address any reverse engineering issue; this activity is carried out with lasers as well as by optical or photogrammetric measurement.\nNon-contact scanning and inspection\nThe 3D optical scanning systems used by Metrologia provide accurate scans together with high resolution and at high speed. These systems produce three-dimensional measurement and analysis data for industrial components such as sheet metal parts, moulds and equipment, turbine blades, prototypes, plastic injection moulds, cast and forged parts and many more. Instead of measuring individual points or measuring with a laser, 3D optical scanning precisely captures the entire geometry and the primitives of a part in a point cloud or a polygon mesh.\nNon-contact instruments are used on a large scale in various industrial sectors and can measure objects of different sizes, with different surface finishes and complex shapes.\nAt the Metrologia headquarters, a new and exclusive Non-Contact Room has been set up, totally dedicated to 3D optical scanning and equipped with cutting-edge equipment, unique in the metrology sector..\nMetrologia uses Atos GOM instrumentation with Blue Light technology.","domain":"optical_engineering"}
{"url":"https://sciences360.com/why-do-opaque-materials-become-warmer-when-light-shines-on-them/","date":"2023-11-28T13:23:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099514.72/warc/CC-MAIN-20231128115347-20231128145347-00727.warc.gz","language_score":0.8898555040359497,"token_count":1201,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__308325797","lang":"en","text":"Why Do Opaque Materials Become Warmer When Light Shines On Them?\nHave you ever wondered why certain objects feel warmer when exposed to light? The phenomenon of opaque materials becoming warmer when light shines on them can be observed in various everyday scenarios. To better understand this intriguing process, let’s delve into the science behind it and explore some interesting facts along the way.\nWhen light interacts with opaque materials, such as wood, metal, or plastic, it undergoes a fascinating transformation. Here’s why:\n1. Absorption of Light Energy:\nOpaque materials have the unique ability to absorb light energy. When light waves approach these materials, they encounter atoms or molecules that can absorb certain wavelengths. This absorption process converts the light energy into heat energy, resulting in an increase in temperature.\n2. Conversion of Light Energy:\nOpaque materials contain electrons in their atomic or molecular structures. When light shines on these objects, the photons in the light waves excite the electrons within the material. This excitation causes the electrons to move to higher energy levels, transforming the light energy into thermal energy.\n3. Reflection and Absorption:\nWhen light waves hit an opaque object, they can be reflected or absorbed. Some materials reflect a significant portion of the light, making them appear shiny or reflective. However, the light that is not reflected is absorbed by the material. This absorbed light energy is then converted into heat energy, leading to an increase in temperature.\n4. Color and Heat Absorption:\nThe color of an opaque material plays a crucial role in its ability to absorb or reflect light. Darker colors, such as black, absorb more light energy compared to lighter colors. This is because darker colors contain pigments that can absorb a wider range of light wavelengths, resulting in a greater conversion of light energy into thermal energy.\n5. Surface Area and Heat Generation:\nThe surface area of an opaque material also influences its ability to become warmer when light shines on it. A larger surface area allows for more light to be absorbed, increasing the amount of heat generated. Conversely, materials with smaller surface areas absorb less light and therefore generate less heat.\nNow, let’s address some common questions related to this phenomenon:\n1. Why do some objects become hotter than others when exposed to light?\nThe ability of an object to become hotter when exposed to light depends on its material composition, color, and surface area. Materials that absorb more light energy, such as dark-colored objects or those with larger surface areas, will become hotter.\n2. Can transparent materials also become warmer in the presence of light?\nTransparent materials, such as glass, allow light to pass through them without significant absorption. Therefore, they do not become warmer when exposed to light as the light waves pass through without converting into heat energy.\n3. Is the temperature increase noticeable in everyday objects?\nThe temperature increase in everyday objects due to light exposure is usually minimal and may not be easily noticeable to the touch. However, sensitive instruments can detect even the slightest temperature changes.\n4. Does the intensity of light affect the temperature increase?\nYes, the intensity of light does affect the temperature increase in opaque materials. Higher-intensity light sources provide more energy, resulting in a greater temperature rise.\n5. Can all opaque materials absorb light in the same way?\nNo, different materials have varying abilities to absorb light energy. Factors such as material composition, color, and surface characteristics influence the absorption capacity of opaque materials.\n6. Does the thickness of an object affect its temperature increase?\nYes, the thickness of an object can affect its temperature increase. Thicker objects have a greater volume to absorb light energy, leading to a higher temperature rise.\n7. Is the temperature rise uniform throughout the object?\nThe temperature rise in an object due to light exposure may not be uniform. Factors such as the material’s thermal conductivity, shape, and exposure time can cause variations in temperature across the object’s surface.\n8. Can the temperature increase be harmful?\nIn most cases, the temperature increase caused by light exposure is not harmful. However, in certain situations, such as prolonged exposure to intense light sources, it is essential to consider the potential adverse effects.\n9. Does the temperature increase continue indefinitely?\nNo, the temperature increase does not continue indefinitely. Once the light source is removed, the object begins to cool down as it radiates the absorbed heat energy.\n10. Can the temperature rise be used for practical purposes?\nYes, the phenomenon of opaque materials becoming warmer when light shines on them has applications in various fields. For example, solar panels absorb sunlight to generate electricity by converting the absorbed light energy into thermal energy.\n11. Can the temperature increase be reversed?\nYes, the temperature increase can be reversed by removing the light source and allowing the object to cool down naturally.\n12. Can the temperature increase lead to damage?\nIn some cases, excessive temperature increases can damage certain materials. For instance, prolonged exposure to intense light sources can cause discoloration, warping, or even melting of certain plastics.\n13. Can different light sources produce different temperature increases?\nYes, different light sources can produce varying temperature increases depending on their intensity, wavelength, and energy output.\n14. Does the angle of incidence affect the temperature increase?\nThe angle at which light strikes an object can influence the temperature increase. Generally, objects heated by light at an angle experience a less noticeable temperature rise compared to those directly facing the light source.\nThe science behind opaque materials becoming warmer when light shines on them is an intriguing phenomenon that showcases the intricate relationship between light energy and heat energy. Understanding this process allows us to appreciate the diverse ways in which light interacts with our surroundings and how it can impact the world around us.","domain":"optical_engineering"}
{"url":"http://www.casio.ipt.pw/News/best-eye-clinic-in-mumbai/","date":"2020-10-22T12:47:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107879537.28/warc/CC-MAIN-20201022111909-20201022141909-00674.warc.gz","language_score":0.8686308860778809,"token_count":194,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__4918699","lang":"en","text":"Dr Cyres K . Mehta’s International eye centre combines the skill and expertise of an internationally famous surgeon with the best technology and lasers that money can buy. Everything you see here is simply the best in the world. Nothing but the best for your eyes is our mission statement.\nRecent advances in the treatment of low vision\n1. For patients of central visual loss for eg Dry macular degeneration, we can implant a special lens which has a small zone in the centre which acts as a magnifying glass\n2. Implantable miniaturized telescope -This is a tiny device which we implant to magnify the central vision\n3. Retinal implants for eg Argus II – These devices are in development and hold the promise of better vision for totally blind people in the future.\n202 , Ramnimi Building, Mandlik Road, Cotton World Building, Next To Indigo Restaurant, Colaba, Mumbai- 400001, India","domain":"optical_engineering"}
{"url":"https://indico.kps.or.kr/event/30/contributions/233/","date":"2022-08-18T22:36:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573533.87/warc/CC-MAIN-20220818215509-20220819005509-00385.warc.gz","language_score":0.8599746227264404,"token_count":178,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__108478446","lang":"en","text":"Exposing kt-scale water-based liquid scintillator (WbLS) optical detectors to GeV-level neutrino beams provides a unique opportunity to make both a world-leading long-baseline high-energy neutrino oscillation measurement and numerous unprecedented low-energy physics measurements. For long-baseline neutrino oscillation measurements, WbLS detectors such as Theia, have comparable performance to water Cherenkov detectors, as both can use advanced Cherenkov ring reconstruction techniques. In addition for WbLS detectors, scintillation light further improves event discrimination, especially for events containing charged particles below the Cherenkov threshold. Understanding high-energy neutrino event detection capabilities in WbLS is critical to advancing this technology. In this poster, recent studies about the WbLS detector performance are presented.","domain":"optical_engineering"}
{"url":"https://www.discountmedicalsupplies.com/oxygen-respiratory/pulse-oximeters.html","date":"2020-08-13T11:06:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738982.70/warc/CC-MAIN-20200813103121-20200813133121-00047.warc.gz","language_score":0.915627658367157,"token_count":125,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__77110356","lang":"en","text":"The respiratory pulse oximeter supplies are a non-invasive way to measure and monitor a person’s oxygen saturation. The sensor is mostly applied on a thin part of the body, commonly on the index finger. This device sends two wavelengths of light through the body part the sensor holds on to a photodetector which in case measures the changing absorbance of each wavelength through the arterial blood. In this category you will find the best quality of respiratory pulse oximeter products. These items display the percentage of oxygen in the blood, more specifically it measure the hemoglobin, which is the protein that carries oxygen.","domain":"optical_engineering"}
{"url":"https://www.weinatech.com/news_content.asp?id=235&anid=1","date":"2022-08-11T02:31:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571232.43/warc/CC-MAIN-20220811012302-20220811042302-00429.warc.gz","language_score":0.9778415560722351,"token_count":156,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__67983599","lang":"en","text":"LED lighting as a new generation of lighting has been widely concerned. Only relying on LED packaging can not produce good lighting. This paper mainly introduces the LED lighting from the electronic circuit, thermal analysis, optical aspects, first introduces the LED lighting design.\nWith the improvement of people's attention to the environment in recent years, LED lighting as a new generation of lighting has been widely concerned. At the exhibition, as long as the booths related to LED lighting are crowded, at the same time, LED lighting also appears more in our daily life. Generally, LED lamps that can be consumed by families are bulb type LED lamps sold by major lighting manufacturers. In addition, many companies have developed fluorescent LED lamps. In this case, more companies are bound to participate in the LED lighting industry.","domain":"optical_engineering"}
{"url":"https://necitizen.com/class-iiia-laser-eye-damage/","date":"2022-05-25T11:11:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662584398.89/warc/CC-MAIN-20220525085552-20220525115552-00477.warc.gz","language_score":0.9074304103851318,"token_count":1132,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__275083715","lang":"en","text":"NeCitizen – Class Iiia Laser Eye Damage\nClass Iiia Laser Eye Damage,\nPower output between 1 milliwatt and 5 milliwatt. Odds of damage are very low, less then 1 in 100,000 for that power level.\nThere is only a small hazard potential for accidental exposure.\nClass iiia laser eye damage. Lasers in this class range from 5 to 499 mw in power output. Class iiib will cause damage if the beam enters the eye directly. For pulse laser system to be class 3b their output cannot exceed 125 mj in less than 0.25 seconds.\nThe american national standards institue (ansi) is the body that regulates lasers manufactured and. The first two are relatively safe for eye exposure; There is only a small hazard potential for accidental exposure.\nThis is the highest class of laser radiation. It can cause distraction, being brighter than surrounding lights, within 4.5 miles (7.3 km) of the laser.; Class 2, class 3r, class 3b and class 4.\nDirect viewing of the beam can be hazardous to the eyes, even for brief amounts of time. Class 2, class 3r, class 3b and class 4. Class iiia laser pointers and any recognizable retinal damages were evaluated.\nThis generally applies to lasers. A 4.99 mw class 3r laser beam can temporarily flashblind a pilot or driver, causing afterimages, within 530 ft (160 m) of the laser.; Products that have a class iiia laser should have a laser emission indicator to tell when the laser is in operation.\nWhile it is possible for class 3r lasers to have small but brief contact to the eye without causing damage, class 3b lasers should not be pointed to the eye completely. Class iiia lasers in this class are mostly dangerous in combination with optical instruments which change the beam diameter. The chart below shows how the eye injury hazard increases as the laser’s power increases.\nThese are hazardous to view at all times, may cause devastating and permanent eye damage, may have sufficient energy to ignite materials, and may cause significant skin damage. Class 3b or class iiib lasers. Class 3a laser pointer is essentially the same as the roman numeral “class iiia” you may see on some lasers’ labels.\nClass 3a lasers are considered safe when handled carefully. You might pick up some eye strain from your aversion reactions. Avoid direct eye exposure class iiia laser product.\nIt can cause glare, blocking a pilot or driver’s vision, within 2400 ft (730 m) of the laser. The first two classes are relatively safe for eye exposure; The last two are hazardous.\nThe last two are hazardous. To report laser pointer induced damage to retina and choroid and briefly review literature. Many laser pointers are in this category.\nClass 3a lasers are considered safe when handled carefully. Damage is caused by looking directly into the light for more than 15 minutes. Class iiia (beam irradiance 2.5 mw/cm(2)), class iiib and class iv lasers:\nThe above calculations are for a 555 nanometer green laser. These findings were also confirmed in the survey of 14 patients with transient exposure to light beam of a laser pointer.19 regardless of the previous reports, They should also have a danger label and output.\nThe higher of the two is class 3b (class iiib) lasers, which is closer to class 4 regarding power and damage. It was concluded the potential risk of the class iiia laser pointers to cause eye damages is negligible. Laser classes chart lasers are classified based on their potential for causing injury — especially eye damage, since the eye is most susceptible to excess laser light.\nSome laser pointers do fall into this class. Besides the possibility of causing damage to the human eye, class 3b lasers can heat up your skin and possibly burn at higher output levels. Cause damage to the product, or cause harm to the user.\nMaximum power density in the beam is 2.5 mw/square cm. It can cause glare, blocking a pilot or driver's vision, within 2400 ft (730 m) of the laser.; A 4.99 mw class iiia green laser pointer beam can temporarily flashblind a pilot or driver, causing afterimages, within 530 ft (160 m) of the laser.\nHe was exposed for one minute to class iiia green laser pointer of 650 nm wavelength and 5 m … Protective eyewear is a must when handling lasers in this class. Class 3a laser pointer is essentially the same as the roman numeral class iiia you may see on some lasers' labels.\nIt can cause distraction, being brighter than surrounding lights, within 4.5 miles (7.3 km) of the laser. Require the danger sign format: Now if the laser were class iiib, and greater then 5 mw, then things change.\nHis eyesight fully recovered within 2 days, at the time of his eye exam. Each is described in more detail here: It is also recommended for the laser to have a key switch and safety lock.\nLuttrull & hallisey (1999) describe a similar case, a 34 year old male who stared into the beam of a class iiia 5 mw red laser for 30 to 60 seconds, causing temporary central scotoma and visual field loss. These lasers can produce spot blindness under the right conditions and other possible eye injuries.","domain":"optical_engineering"}
{"url":"https://2dtg.com/node/434","date":"2017-03-28T06:08:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189680.78/warc/CC-MAIN-20170322212949-00284-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8967344164848328,"token_count":266,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__95508546","lang":"en","text":"2DTG offers UV (Ultra-Violet) and IR (Infrared) scanners as an integral part of Barcode Protection strategy, supplementing content security - Barcode Security Suite – with safeguarding the label from direct copying.\nUV (or IR) printed barcodes have become a popular method of adding security marks to products and documents. The Ultra Violet illumination and enhanced optics are able to see the 'invisible' barcode marks printed with UV fluorescing inks. Fluorescence occurs when the absorbed radiation is in the ultra-violet region of the spectrum, and thus invisible to the human eye, while the emitted light is in the visible region, which gives the fluorescent substance a distinct color that can only be seen when exposed to UV light.\nFluorescent technology in barcode printing provides their comprehensive protection from direct coping (using copy-machine, for instance) and that is why this method is particularly popular with government agencies, pharmaceutical industry, any agency in need of protecting documents from copying and tampering. It does not protect the content of the barcode, though. That is why the combination of 2DTG’s authentication/encryption methods with fluorescent technology provides the best overall protection for your brand/product/ document: “Authentication - Encryption – Validation”.","domain":"optical_engineering"}
{"url":"https://hanslaser.net/news/?page=3","date":"2024-04-18T14:05:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.54/warc/CC-MAIN-20240418124808-20240418154808-00423.warc.gz","language_score":0.9144595265388489,"token_count":298,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__173948982","lang":"en","text":"Various applications of laser in photovoltaic industry\nIn the process of development and use of photovoltaic energy, as a high precision and high efficiency tool, laser is playing an increasingly important role. This article is about to discovery the application of laser technology in photovoltaic energy industry and expect the development outlook of the laser technology.\nPractical application of glass laser welding\nThe combination of ultra short pulse laser and exquisite self-focusing technology provides the required quality and process reliability, making it possible to apply glass laser welding in mass production. The unique and excellent properties of glass make it widely used in various high-tech products in different fields such as biomedical and microelectronics.\nIntroduction of laser welding methods: Frame welding and synchronized welding\nAt present, many products(including automobile semi-conductors, medical and food industries) have extremely high requirements for processing precision and cosmetic, that made laser welding has been become the necessary process of those products, also make laser welding a further development.\nHandheld laser welding machine, differences between forced air cooling and direct air conditioning cooling\nWith the rapid development of the handheld laser welding market, a large number of handheld laser welding machines that use water-cooled cooling methods have been sold in the market in recent years.","domain":"optical_engineering"}
{"url":"http://stvfe.en.alibaba.com/product/247571527-209493781/KameRa_Teleprompter.html","date":"2018-07-22T12:15:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593223.90/warc/CC-MAIN-20180722120017-20180722140017-00181.warc.gz","language_score":0.8370221853256226,"token_count":183,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__219795787","lang":"en","text":"high brightness, high optical transmissivity, Super thin film glass, daylight readable\nBYTC Super high brightness teleprompter applies for updated technology for preventing light refraction, whose brightness is 2-3 times to common teleprompters. The highest brightness reaches at 1800nits and its optical transmissivity reaches at 80%. Our daylight readable screen also allows you to use it within surroundings with strong light or even outdoor. Super thin film glass, which is only 2mm, makes you not be affected by teleprompter when shooting.\nCharacters for BYTC SUPER BRIGHTNESS TELEPROMPTER:\nLight refraction preventing;\nBrightness is 2-3 times to common teleprompters;\nHighest brightness: 1800nits;\nOptical transmissivity: 80%;\nSuper thin film glass (only 2mm) greatly imporves optical transmissivity.","domain":"optical_engineering"}
{"url":"http://lula4282bvgblog.amoblog.com/2-items-you-do-certainly-not-understand-relative-to-lasik-eye-medical-procedure-9115571","date":"2018-11-19T07:05:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039745486.91/warc/CC-MAIN-20181119064334-20181119085724-00033.warc.gz","language_score":0.9558286666870117,"token_count":876,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__17234701","lang":"en","text":"2 Items You Do Certainly Not Understand Relative To LASIK Eye Medical ProcedureThe eye can be analyzed with relative ease regarding both its function and its structure. A functional assessment includes the ability to relocate the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be tested in several methods. The client might be asked to determine illuminated letter or objects of differing sizes on exactly what is understood as the Snellen chart.\nConversely, the assessment of the structural part of the eye may be made in a number of ways. Stress within the eyeball is determined by a \"tonometer.\" In particular diseases, especially in glaucoma, the stress in the eyeball is increased markedly.\nIt needs to be well remembered that a patient with an eye issue may have other problems. Often other physical conditions are main and impact the eye as a consequence. The look of the eye can inform the physician and the patient to difficulties in some disturbances of other parts of the body even before other symptoms present themselves.\nOne's dependence on sight is stressed when one deals with a possible or momentary permanent loss of this crucial sense. When corrective procedures are looked for, particular kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some people are bothered with the fact that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to motivate decreased usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgery is another form of vision correction. The only distinction is that with this kind of surgery, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe primary function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that people need to know. Most likely, the main factor why this kind of eye surgery has become well accepted is since the majority of its cases had been effective.\nHowever, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is one of the most sensitive portions of the eye, most people state that the operation can be really risky.\nTo puts it simply, a easy mistake might almost cause an person's life time loss of sight. It is essential to consider many useful reference elements before deciding whether LASIK eye surgical treatment is the right corrective step one has to go through.\n2. It is not a best procedure\nLASIK eye surgery may fix your vision however it does not necessarily mean that it can give you a twenty-twenty. Even if statistical reports show that 70% of the clients may have 20/20 vision, this does not necessarily suggest they have ideal vision as well.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the perfect eye surgery the way the majority of people see it\nOn the other hand, the assessment of the structural part of the eye might be made in numerous methods. It must be well kept in mind that a client with an eye issue may have other issues. Typically other physical conditions are main and impact More about the author the eye as a repercussion. The appearance of the eye can alert the doctor and the patient to problems in some disruptions of other parts of the body even before other signs present themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.smart2zero.eu/news/multiplex-photonic-sensor-detects-contaminants-milk","date":"2020-06-03T15:27:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347435238.60/warc/CC-MAIN-20200603144014-20200603174014-00032.warc.gz","language_score":0.9172108173370361,"token_count":402,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__147697895","lang":"en","text":"In a test lasting around five minutes, the new optoplasmonic sensor analyzes the product for a total of six substances, providing a supplementary check and an early-warning system within the supply chain, well before the milk is pumped into the tanker. The sensor is functionalized with receptors for specific antibodies that serve as indicators of various quality and safety parameters for milk. It allows dairy farms to carry out automated, on-site quantitative analyses.\nThe entire system consists of a reusable microfluidic chip, organic light-emitting transistors (OLETs) or diodes (OLEDs), a sensor comprising organic photodetectors (OPDs), a nanostructured plasmonic grating and the specific antibodies. The organic photodetector is undergoing development at the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, and the microfluidic chip at the Fraunhofer Institute for Electronic Nano Systems ENAS. The OLET, meanwhile, is being developed by CNR-ISMN in Bologna, and the photonic grating by the company Plasmore Srl in Pavia, both in Italy. Coordinator of the project is CNR-ISMN.\n“Light emitted by the transistor falls onto a grating coated with antibodies specific to the various substances being tested for. When milk is flushed over the grating, any target molecules in the milk then bond with the antibodies. This alters the refractive index in the immediate vicinity of the grating, which in turn modifies how this light is reflected. The reflected light is registered by the photodetector, which measures minimal changes in the refractive index”, explains Dr. Michael Törker, a researcher at Fraunhofer FEP. This basic phenomenon, which occurs on specially structured nanogratings, is known as surface plasmon resonance. It provides rapid and highly sensitive readings.","domain":"optical_engineering"}
{"url":"http://laserbeauty-en.com/q-switch-ndag.html","date":"2020-11-30T01:39:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141204453.65/warc/CC-MAIN-20201130004748-20201130034748-00172.warc.gz","language_score":0.8868423104286194,"token_count":266,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__345456","lang":"en","text":"Q-Switched Applications are suitable for skin toning by treatment of pigmented lesions and dark tattoo removal.\nQ switched Nd YAG laser skin care machine adopts laser blasting effects and the theory of selective absorption. Then high energy laser pulses will act on the pigment tissue, including melanin, pigments for tattoo, permanent tattoo pigment, dust particle. After the laser shock, the pigment tissue will dilate rapidly. The thermal relaxation time of laser pulse is much shorter than that of melanoma and tattoo, so the pigment tissue will generate mechanical oscillation wave and then be broken up after absorbing laser energy. The fragmentized pigment granule will be excreted to the outside of the body through metabolism and phagocytosis of macrophages. Thus the pigment will be removed. Meanwhile, the laser beam can penetrate into corium layer to activate the tissue, accelerate cell regeneration in order to get the following effects: wrinkle removing, skin whitening, skin rejuvenation and skin quality improving. The laser can absorb heat selectively; the optimal absorbing wavelength of various pigments is different; and other tissues of the human body has little absorption of 1064nm and 532nm laser from ND:YAG laser. So this machine can effectively remove pigment and vessel tissue with lesion without destroying peripheral tissue.","domain":"optical_engineering"}
{"url":"http://sg.leica-camera.com/Photography/Leica-APS-C/Leica-CL","date":"2018-10-17T10:06:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511122.49/warc/CC-MAIN-20181017090419-20181017111919-00173.warc.gz","language_score":0.935806155204773,"token_count":610,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__85582038","lang":"en","text":"Leica CL silver\nIn addition to the black model, the versatile system camera - the Leica CL - is now available in silver. While its technical specifications are identical to those of its black counterpart, the design of the new version sets itself apart with the classic combination of black and silver. The top plate and the baseplate are silver anodized. The black leather trim has been maintained.More Details\nThe control elements on the top plate are finished in silver. The silver versions of the TL-lenses are the perfect addition for your Leica CL, to support your individual style of photography.\nDiscover the new silver version right now.\nWorking with the Leica CL has been an interesting experience.\nI’ve been immersed in the world of the night bus for a few months now and have been working most Friday and Saturday night’s that I’ve been in London but always on my Leica M10 and with my Summilux-M 50mm f/1.4. I have to say I was completely delighted, and also surprised given it’s compact size compared to the mighty Leica M10, how brilliantly the CL performed.\nIn his series ‘Hola Chicas!’, he shows just how exciting a day in the life of the very busy TV-star and media-darling Jorge González can be.\nI pushed my camera to the absolute limit all day long. I had to cope with a lot of difficult lighting situations. As it turned out, everything was possible and the camera was perfect.’ Anatol Kotte, well-known for his intense portraits of actors, actresses, musicians and politicians, accompanied Jorge González a whole day long – the outcome is a wonderfully multifaceted series that shows not only the public face of the star, but also reveals the real person behind the media hype that surrounds him.\nLeica Elmarit-TL 18mm f/2.8 ASPH.\nThe Leica Elmarit-TL 18 mm f/2.8 ASPH. is not only one of the smallest in its class, it also by far exceeds the imaging performance of its competitors.\nWith a weight of only 80 grams, a length of just 20.5 millimetres and four asphericals in its optical design, the extremely compact Elmarit-TL 18 mm f/2.8 ASPH. wide-angle lens delivers outstanding imaging performance.\nLeica TL-Lenses Masterpieces of optical design\nThe exceptional imaging performance of Leica lenses has evolved from more than 150 years of experience in the development of precision optical instruments.\nThe lenses for the APS-C System are naturally also characterised by our dedication to optical perfection.\nL-Mount A new era of creative freedom\nFor the first time in the history of digital photography, a cross-format lens mount standard has been established that allows lenses made by different manufacturers to be used on each other’s system cameras.","domain":"optical_engineering"}
{"url":"http://khellek.blogspot.com/2011/08/arrg-more-history-on-leica-lens.html","date":"2018-12-10T11:51:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00277.warc.gz","language_score":0.9421277046203613,"token_count":362,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__5908672","lang":"en","text":"Leica has always called its f/1.4 lenses \"SUMMILUX,\" regardless of focal length or optical design. Thus SUMMILUX is a meaningless trademark, not any indicator of lens age, quality or design. All these lenses are sold as \"SUMMILUX\" lenses.\n1961 ~ 1990: 35mm f/1.4 SUMMILUX-M (11 870)\nThe first 35mm f/1.4 SUMMILUX-M (11 870) had 7 spherical elements in 5 groups. It's a conventional double-Gauss design.\nIt weighs 245g and is only 38mm long.\nIn the beginning, it also came in a version with additional finder optics (11 871) for use on the M3.\nBy itself, this first 35/1.4 focuses to 1m, and with the M3 reducing optics, focuses to 0.65m.\nThe first version, up to serial 2,166,700, used a bizarre 41mm filter, then was changed to use series VII instead. Neither size is easy to find today.\nThe first version used the 12 586 hood, and the latter uses the 12 504 hood.\nIt has come in silver and in black.\nAn optical advantage of this first version 35mm f/1.4 is that its mostly symmetrical design produces no distortion, unlike the slightly stronger distortion (bending of straight lines) of the newer aspherical versions.\nThis first version is pretty soft at f/1.4 and can't use easy-to-find filters, which limits its appeal, but its lack of distortion and having the same sharpness as the current lenses stopped down can make it a winner.","domain":"optical_engineering"}
{"url":"http://www.telltalestories.com/","date":"2021-08-05T19:53:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046157039.99/warc/CC-MAIN-20210805193327-20210805223327-00632.warc.gz","language_score":0.7760509848594666,"token_count":1025,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__740848","lang":"en","text":"Panasonic DMC-ZS7 12.1 MP Digital Camera with 12x Zoom\nThe Panasonic Lumix DMC-ZS7 is one of the most popular Digital Cameras on\nthe market and makes the perfect gift. With an ultra wide-angle 25mm powerful 12x optical zoom lens it is a good\ncamera for any situation. Boasting a 12.1 Megapixels it also has many attractive features such as Intelligent\nResolution technology and built in GPS unit. The capability of both photo and movie recording makes this more than\njust a normal digital camera. Movies can be recorded in an instant simply by pressing the recording button for two\nOne of the most Popular Cameras selling on Amazon! Available in 4 different colors!\nPanasonic DMC-ZS7 12.1 MP Digital Camera Black\nPanasonic DMC-ZS7 12.1 MP Digital Camera\nPanasonic DMC-ZS7 12.1 MP Digital Camera Blue\nPanasonic DMC-ZS7 12.1 MP Digital Camera Red\nPanasonic Lumix DMC-ZS7 Features\n25mm Ultra Wide-angle Lens\nThe DMC-ZS7 features a 25mm ultra wide-angle*\n12x optical zoom f/3.3-4.9 Leica DC Vario-Elmar lens (35mm camera equivalent: 25-300mm). Incorporating Panasonic's\nadvanced optical technologies, this lens system is comprised of 10 elements in 8 groups, with 2 ED (Extra Low\nDispersion) lenses and 2 aspherical lenses / 3 aspherical surfaces while preserving compactness. This lens system\nenables a remarkable 25 to 300mm range of focal length in this compact body. The powerful zoom of the DMC-ZS7 can\nbe freely controlled even when shooting motion images. Inheriting the fine rendering and outstanding quality of the\nLeica Elmar lens, this easy-to-carry camera delivers beautiful images any time, any place.Editing this basic\ntemplate to meet your needs\n16x Intelligent Zoom/23.4x Extra Optical Zoom\nThanks to the newly incorporated Intelligent Resolution technology, the Intelligent Zoom is available with the\nDMC-ZS7 which extends the zoom ratio by approx. 1.3x\nmaintaining the picture quality even combining a digital zoom. This means the 12x optical can virtually extend to\n16x equivalent. Furthermore, the Extra Optical Zoom function that extends zoom power to 23.4x* by using the center\npart of the large CCD to bring subjects even closer.\nHD Movie in AVCHD Lite\nIn addition to Motion JPEG images, the\nDMC-ZS7 can record high-definition motion images in AVCHD Lite.\nIt features almost double the recording time in HD quality compared with the conventional Motion JPEG format. Also,\nwith the DMC-ZS7, it is possible to use the GPS (Global Positioning System) function to record data on the shooting\nlocation. You can view images for each geographical location by using the included software PHOTOfunSTUDIO 5.1 HD\nEdition to manage the images by date and location.\nPowerful 12x Optical Zoom\nThe addition of AVCHD Lite HD movie recording doubles the appeal of the DMC-ZS7. This single camera lets you\ncapture virtually all images in their natural beauty. It gives you both motion and still images, and ranges from\n25mm ultra wide-angle* shots of sweeping landscapes to powerful 12x\nWaterbury CT portable toilets\nporta potty Ventura\nAbilene port a john\nporta potty Citrus Heights\nporta potty Janesville\nLakeville portable toilet\nporta potty Charlottesville VA\nportable toilet Appleton WI\nport a john\nKansas City KS port a john\nport a potties\nSmyrna GA port a john\nport a potty\nModesto portable toilets\noptical zoom shots (35mm camera equivalent: 300mm) that pull distant subjects right up close. The mechanism design\nminimizes the noise of auto focusing or zooming.\n* Converted to standard 35mm camera equivalent, at the maximum wide position.\nHigh Quality Sound\nA stereo microphone, featuring Dolby Digital Stereo Creator, on\nthe upper body records dynamic, true-to-life stereo audio that brings out the power of your HD movies.\nTravel Mode with GPS for both Photos and Movies\nBy simply turning on the GPS function, the location data and time are automatically updated. Great\nfor travel recordings. The DMC-TS7 camera is acclaimed as an excellent travel companion because of a wide\nshooting range and hybrid recording capability of high quality photos and movies. The DMC-ZS7 further\nenhances its value by adding a built-in GPS (Global Positioning System) unit into the camera.\nAvailable in 4 Different colors","domain":"optical_engineering"}
{"url":"https://community.juniper.net/answers/communities/community-home/digestviewer/viewthread?GroupId=25&MID=71296&CommunityKey=18c17e96-c010-4653-84e4-f21341a8f208&tab=digestviewer","date":"2021-06-21T00:13:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488259200.84/warc/CC-MAIN-20210620235118-20210621025118-00609.warc.gz","language_score":0.9013434052467346,"token_count":439,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__144829478","lang":"en","text":"Can someone please let me know, how do i find out if the SFP is dual fiber or single fiber by the juniper SFP part number or specifications.\nI require both dual fiber and single fiber SFP for 10G and range 10KM\nJuniper only does a dual fiber 10G 10km single-mode optic: EX-SFP-10G-LR. single fiber (bidi) are available for 1G.\nIf you require a single fiber (bidi) 10G optic, you have to look into thirdparty vendors to solve this need - but it will work so you can easily go in that direction 🙂\nHi Jonas ,\nI wasn't expecting some one to resolve the query this soon, I will let this be the solution unless someone points out single fiber SFP for 10GbE.\nThanks alot for the information.\nI would like to ask a follow up question,\nIs there any performance impact for useing 3rd party SFPs?\nCan anyone suggested Single Fiber (bidi) 10GbE SFP for MX960 MIC-3D-4XGE-XFP\nthere is no performance impact of using 3rd party optics.\nRegarding which optic for MIC-3D-4XGE-XFP. This MIC has 4 XFP-slots which is a different form factor than SFP+.\nYou could eg. use Prolabs EX-XFP-10GE-BXD-20KM-C and EX-XFP-10GE-BXU-20KM-C. Please be aware with bidi optics they need to be in pairs as transmit/receive wavelengths has to match. In this case you can see tx/rx on the SKU description from Prolabs. Other vendors has similar optics available, use your google-foo to find these. Prolabs are just my personal go-to-vendor 🙂\nPlease remember to kudo if you can use the answer...\nI've found that Champion Optics work well in the MX, EX and ACX line gear and offer a wide variety of BiDi options.","domain":"optical_engineering"}
{"url":"http://nuccioopt.com/orthokeratology","date":"2023-06-01T06:29:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00074.warc.gz","language_score":0.9232138991355896,"token_count":120,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__231537718","lang":"en","text":"Orthokeratology is a safe, non-surgical alternative to lasik vision correction. This process utilizes specialized rigid gas permeable contact lenses to gently reshape the cornea while you sleep. These lenses change the curvature of the cornea to eliminate the need for prescription correction during the day. Once the maximum results are achieved, retainer lenses are worn at night to maintain your vision correction.\nThis process is not for everyone, so ask your doctor during your next visit or call with any questions. Our doctors will work with you for the best possible vision correction for your needs.","domain":"optical_engineering"}
{"url":"https://www.editorialviceversa.com/information-about-ftir-spectroscopy/","date":"2024-02-26T18:53:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474661.10/warc/CC-MAIN-20240226162136-20240226192136-00872.warc.gz","language_score":0.9132662415504456,"token_count":571,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__28219293","lang":"en","text":"Whenever a sample is exposed to IR, the infrared part of the electromagnetic spectrum, which has a larger wavelength and short frequency than visible light, is quantifiable in the sample. In operation, the core notion is that various components’ connections absorbed light of specific frequency. An infrared spectrometer is used to evaluate the light, which creates an IR spectrum as a result. The Infrared spectra are a chart with the frequencies (wavelength) mostly on the horizontal plane and the ir radiation absorption by the material on the y axis. Let us know more about FTIR spectroscopy basics below.\nHow it works\nThe band of wavelengths inside the infrared region which are absorbed by a substance is measured via FTIR analysis. The introduction of infrared radiation to a sampling of a substance accomplishes this. To evaluate the substance’s molecular compositions, the sample’s absorption of infrared light energies at different wavelengths is evaluated. The spectrum is compared to a collection of reference spectra to identify unknown compounds. As far as a standard calibration curve with a known concentration of the element of interest could be constructed, substances could be measured utilizing the FTIR spectroscopy basics substances characterization approach. Unknown components, additives inside polymers, exterior contaminants on a substance, and more may all be identified via FTIR analysis.\nAn interferometer, a simplistic apparatus that produces an optical signal along with all the Infrared radiation frequencies recorded in it, can be used to distinguish samples. The signals may be immediately measured. The signals are then deciphered using the Fourier transformation, a mathematics method. The spectral data is then mapped using a desktop-generated technique. The resultant chart is the spectrum that is subsequently identified by comparing it to the references library. Samples as tiny as twenty microns could be studied using the microscopy attachments. This enables the identifications of unidentified particles, deposits, coatings, or fibers in a timely and cost-effective manner. FTIR analysis may also be used to measure impurities or additions in materials, and also evaluate levels of oxidized in certain polymers or degrees of curing in others.\nPut the sample in the FTIR spectrophotometer. The spectrometer sends infrared beams of light to the sample and detects that how much of the beams and at what frequency the sample absorbed. A tiny piece of the substance should be cut or the sample should be small enough for the infrared light to pass across. On certain specimens, reflection methods could be employed without causing harm to the samples. Traces, spots, or coatings on a very flat reflecting surface, or slightly malleable substances narrow enough to go underneath the microscopes utilizing the attenuated total reflectance connection to the lens, are samples favorable to reflection.\nHope the above information has given you some information about FTIR.","domain":"optical_engineering"}
{"url":"https://www.egc.com/lighting-options/","date":"2024-04-18T13:45:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.54/warc/CC-MAIN-20240418124808-20240418154808-00088.warc.gz","language_score":0.8823553919792175,"token_count":414,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__71766599","lang":"en","text":"The standard lighting in most of our chambers is either fluorescent or a mixed array of fluorescent and incandescent lamps designed to produce a broader spectral range, simulating that of natural sunlight. To meet the unique research needs of our customers we have also provided a number of custom lighting solutions including:\n- Vertical & horizontal H. I. D. fixtures\n- Microwave-excited electrodeless lamps\n- Supplemental UVA &/or UVB\n- Monochromatic LED arrays\nThe EGC engineering staff can custom design chambers tailored to fit the researcher’s unique lighting requirements. We can incorporate your preferred illumination into a chamber design that provides the desired performance. Talk with an EGC representative about your specific needs.\nIn addition to our custom lighting solutions we also offer two unique designs for those requiring increased lighting levels.\nSun-Brella® HID Fixtures\nThe Sun-Brella® is a unique lighting fixture which combines two HID lamps with a circulating water system that can remove up to 70% of the lamp generated heat. The specially designed reflector assembly produces an even light distribution over a broad working area. An integral light barrier reduces heat dispersion to the growth area and helps maintain constant lamp operating temperatures for optimum performance\nCombining two 400 watt bulbs, one high-pressure sodium and one metal-halide, they produce an optimal plant growth spectral mix. Research applications include bench lighting, caps for “M” series growth chambers, or as growth lights in environmental rooms.\nDeveloped out of our long term collaboration with NASA, the Wet-Lyte system is a unique solution to providing high efficiency lighting for plant growth enhancement.\nThe 1000 watt HID design produces the maximum lighting levels attainable from commercially available lamps, with power efficiencies up to twice that of other light sources. The water jacketed reflector assembly is designed to produce optimum illumination at low working heights, while acting as an efficient heat exchanger for removing generated heat.","domain":"optical_engineering"}
{"url":"https://proscan.com.au/Film-Scanners","date":"2022-05-24T13:03:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662572800.59/warc/CC-MAIN-20220524110236-20220524140236-00260.warc.gz","language_score":0.9476087093353271,"token_count":298,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__118850686","lang":"en","text":"If the task at hand is to scan photos with the result of a high quality image, then this section on film scanners is just for you. Photo scanning has never been easier with our range of film and negative scanners, even those without prior knowledge of the use of these scanners, will be able to scan photos with a professional result.\nWhen looking for a graphic scanner or photo scanner, it is important to remember that many flatbed scanners are capable of scanning film using a transparent media adaptor but most of the cheaper ones tend to produce such poor results that we really can't classify them as film scanners. When scanning 35mm slides, 120 (medium format) and 5x4 film, it's important to look beyond the resolution. At the same resolution, two scanners may deliver vastly different results.\nIf you are trying to scan 35mm negatives, bear in mind that it's the most difficult task for a scanner. Scanning colour negatives is also likely to take longer than scanning slides.\nThe qualitative aspects are essential to obtain good results. They include the scanner's mechanical precision, optical quality, optical path (e.g. glass free or not), number of mirrors, dynamic range, colour calibration, software and last but not least: auto-focus. Please be aware that published specifications are often very misleading, especially when it comes to dynamic range and resolution. If this sounds too complicated, please feel free to contact our friendly sales staff for advice.","domain":"optical_engineering"}
{"url":"https://www.hopeinschools.com/group/autism-spectrum-disorder/discussion/59a24155-29a4-4c0d-bb26-6502167083e8","date":"2023-12-10T17:16:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102612.80/warc/CC-MAIN-20231210155147-20231210185147-00575.warc.gz","language_score":0.9031531810760498,"token_count":698,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__205453979","lang":"en","text":"Metamorph Imaging Software\nMetamorph imaging software\nMetamorph imaging software is a powerful and versatile software for microscopy automation and image analysis. It can integrate different types of fluorescent microscope hardware and peripherals into a single custom workstation, and perform various biological applications such as multi-dimensional imaging, 3D deconvolution, colocalization, fluorescence ratio imaging, morphometry, and more. Metamorph imaging software is developed by Molecular Devices, a leading provider of high-performance bioanalytical measurement systems.\nFeatures of Metamorph imaging software\nReal-time image processing: Metamorph imaging software supports graphics processing unit hardware acceleration, which enables fast and accurate image processing. It can resolve sub-cellular objects as small as 20 nm spatially and 40 nm axially.\nMulti-dimensional acquisition module: Metamorph imaging software allows the capture of complex acquisition sequences using a flexible and user-friendly interface. It can control multiple devices such as microscopes, cameras, filter wheels, shutters, stages, and lasers, and acquire images in different dimensions such as time, wavelength, position, and focus.\nIntegrated morphometric analysis: Metamorph imaging software can measure and categorize objects into discrete user-defined classes based on any combination of morphometric parameters, such as shape, size, or optical density. It can also perform advanced operations such as object tracking, motion analysis, cell segmentation, neurite outgrowth, angiogenesis tube formation, and more.\nScan slide module: Metamorph imaging software can automate the acquisition of multiple images and then stitch them seamlessly together. This feature is useful for scanning large areas of interest or creating high-resolution images from multiple low-resolution images.\nBenefits of Metamorph imaging software\nMetamorph imaging software offers many benefits for researchers who use microscopy techniques for their experiments. Some of the benefits are:\nCompatibility: Metamorph imaging software works with many commercially available microscopes, cameras, and other devices. It can also be used as a complement to confocal systems, as it can measure, analyze, and display multi-dimensional data acquired from confocal systems.\nVersatility: Metamorph imaging software can handle various types of images, from simple intensity logging to advanced super-resolution microscopy. It can also perform different types of analysis, from basic image processing to sophisticated biological applications.\nCustomization: Metamorph imaging software is available in multiple custom configurations, depending on the user's needs and preferences. It also allows the user to create custom macros and scripts to automate tasks or perform specific functions.\nSupport: Metamorph imaging software is backed by Molecular Devices' customer support team, which provides technical assistance, training, and updates. Molecular Devices also collaborates with leading bioscience researchers to develop new features and modules for Metamorph imaging software.\nMetamorph imaging software is a comprehensive and reliable software for microscopy automation and image analysis. It can integrate different types of microscope hardware and peripherals into a single workstation, and perform various biological applications such as multi-dimensional imaging, 3D deconvolution, colocalization, fluorescence ratio imaging, morphometry, and more. Metamorph imaging software is compatible with many commercially available devices, versatile in handling different types of images and analysis, customizable according to the user's needs and preferences, and supported by Molecular Devices' customer support team. Metamorph imaging software is a valuable tool for researchers who use microscopy techniques for their experiments.","domain":"optical_engineering"}
{"url":"https://pcplusplus.gr/product/viewsonic-ls830-projector-full-hd-1080p-4-500lm-projector-100-0001-contrast-ratio/","date":"2017-12-17T02:30:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948592846.98/warc/CC-MAIN-20171217015850-20171217041850-00682.warc.gz","language_score":0.6727129220962524,"token_count":397,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__29483559","lang":"en","text":"Viewsonic LS830 Projector Full HD 1080p, 4.500lm projector, 100.000:1 contrast ratio\nLS830 A Brilliant Take on Laser Projection Powered by a pure Laser Phosphor light source system, the ViewSonic LS830 laser projector provides resource efficiency solution when compared to traditional lamp-based projectors. Laser lightsource technology lasts up to 20,000 hours which delivers long-term, virtually maintenance-free usage. Featuring 1920×1080 Full HD resolution and 4,500 lumens of brightness, the ViewSonic LS830 Laser Projector is the ideal solution for high-end retail and luxury commercial use. With an ultra-short 0.23 throw ratio the LS830 can be placed just inches away from a wall or screen to project a huge image. Very high contrast ratio and a pure laser light source displays superior image quality compared to other projectors.\nLaser phosphor, UST (0.23 throw ratio), Full HD 1080p, 4,500lm projector, 100,000:1 contrast ratio, RJ45 network control, SuperColor technology, SonicExpert sound system with 3x audio modes (standard, speech, and entertainment), 16w speakers (8w x2 – stereo), vertical & horizontal keystone correction (auto vertical keystone), 3D compatible. RGB IN x2, HDMI x1, HDMI/MHL x 1, VIDEO x 1, S-VIDEO x1, MONITOR OUT x 1, AUDIO IN x 1, AUDIO (RCA) L/R x1, AUDIO OUT x1, AUDIO (RCA) Out L/R x1, RS232 x 1, MINI USB TYPE B x 1, USB TYPE A x1, LAN (RJ45) x 1, 3D VESA x 1, 12V TRIGGER x 1, COMPONENT x 1, MICRO USB WIRE x1","domain":"optical_engineering"}
{"url":"http://perfectseal.tradeindia.com/thermal-camera-2059503.html","date":"2018-04-20T04:56:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937114.2/warc/CC-MAIN-20180420042340-20180420062340-00161.warc.gz","language_score":0.9098374247550964,"token_count":135,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__84957009","lang":"en","text":"Service Code : Thermal Camera\nWith the assistance of skilled and dedicated professionals, we bring forth for our clients technologically upgraded Thermal Camera that is used to capture images using infrared radiations. Widely used in various fields such as military, medicine and archeology, provided camera is best for night vision, building inspection, astronomy and other applications. Sourced from the reliable vendors of the market, offered camera is strictly monitored on defined quality parameters to ensure its flawlessness. We offer this Thermal Camera in several designs, sizes and other specifications at most competitive price.\nCompatible with computer peripherals\nEnriched with smart sensors\nSynchronized video and audio output\nEasy to operate","domain":"optical_engineering"}
{"url":"https://account.anandtech.com/show/15203/cosemi-launches-100meter-usb-31-gen-2-optical-cables","date":"2024-04-17T19:34:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817171.53/warc/CC-MAIN-20240417173445-20240417203445-00836.warc.gz","language_score":0.9033510088920593,"token_count":381,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__93185196","lang":"en","text":"Cosemi Launches 100-Meter USB 3.1 Gen 2 Optical Cablesby Anton Shilov on December 6, 2019 9:00 AM EST\nCosemi has introduced new USB 3.1 Gen 2 active optical cables, which support full speed USB connections at distances of up to 100 meters. The cables are designed primarily for industrial applications.\nCosemi’s USB 3.1 Gen 2 active optical cables feature a USB Type-A connector on one side as well as a USB Type-B connector with a screw locking mechanism on another side. The cables can enable data transfers at up to 10 Gbps speed, but they cannot power devices (which is what hybrid active optical cables are needed for), which somewhat limits applications they can address.\nUSB 3.1 Gen 2 active optical cables like the ones offered by Cosemi are primarily used to connect industrial equipment, such as machine vision systems, to computers located off the factory floor without using expensive signal booster solutions. Considering the fact that more and more industrial equipment is becoming 'intelligent' and requires full time data connections, such long USB cables will be needed. Depending on exact environments, Cosemi will offer its optical cables in standard flex or super high-flex versions.\nCosemi said that it would begin sampling of its USB 3.1 Gen 2 active optical cables in Q1 2020. Commercial shipments will begin later, whereas pricing will depend on the length as well as flexibility.\n- Cosemi Launches USB 3.1 Gen 2 Hybrid Active Optical Cable: Up to 50 Meters of USB\n- Black Box Announces Active Optical DP & HDMI Cables up to 100m\n- Cosemi Announces 328-Feet ‘8K-Ready’ OptoDP Active DisplayPort 1.4 Optical Cable","domain":"optical_engineering"}
{"url":"http://stephenpmex000.qowap.com/13142042/two-benefits-individuals-do-not-really-comprehend-regarding-lasik-eye-medical-procedure","date":"2018-09-23T08:51:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267159165.63/warc/CC-MAIN-20180923075529-20180923095929-00397.warc.gz","language_score":0.9595209360122681,"token_count":860,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__149629801","lang":"en","text":"The eye can be examined with relative ease as to both its function and its structure. A practical examination consists of the capability to relocate the orbit and the response of the student to light and accommodation.\nThe function of the eye might be evaluated in numerous ways. The client might be asked to identify illuminated letter or things of differing sizes on what is understood as the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye may be made in several methods. Tension within the eyeball is determined by a \"tonometer.\" In specific diseases, specifically in glaucoma, the stress in the eyeball is increased significantly.\nIt must be well remembered that a client with an eye issue might have other issues. Typically other physical conditions are primary and impact the eye as a consequence. The look of the eye can notify the doctor and the patient to troubles in some disturbances of other parts of the body even prior to other signs present themselves.\nSubsequently, one's dependence on sight is stressed when one faces a short-lived or possible long-term loss of this important sense. Hence, when restorative procedures are sought, particular kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some individuals are troubled with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgery is another form of vision correction. The only distinction is that with this type of surgery, one's vision is remedied permanently.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe primary purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of see it here LASIK eye surgery, there are still disadvantages that individuals need to know. Probably, the primary reason that this type of eye surgery has ended up being well accepted is since the majority of its cases had succeeded.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nSince LASIK eye surgical treatment includes the operation of the retina, which is among the most delicate parts of the eye, a lot of people state that the operation can be extremely risky.\nSimply puts, a basic mistake could almost cause an person's life time loss of sight. It is essential to consider many aspects before deciding whether LASIK eye surgery is the best corrective measure one has to undergo.\n2. It is not a perfect procedure\nLASIK eye surgery may correct your vision however it does not always mean that it can offer you a ideal vision. Even if analytical reports show that 70% of the patients may have 20/20 vision, this does not always indicate they have ideal vision too.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the perfect eye surgery the method the majority of people see it\nOn the other hand, the evaluation of the structural part of the eye may be made in numerous methods. It needs to be well remembered that a patient with an eye issue might have other issues. Typically other physical conditions are primary and affect the eye as a effect. The appearance of the eye can alert the client and the physician to difficulties in some disturbances of other parts of the body even prior to other symptoms present themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.productspack.com/physical-properties-of-plastic-packaging-systems/","date":"2024-02-24T22:28:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474569.64/warc/CC-MAIN-20240224212113-20240225002113-00784.warc.gz","language_score":0.9245806932449341,"token_count":499,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__10710790","lang":"en","text":"Examination techniques for physical features\nMolecular Weight Determination\nThe firm interrelationship between molecular weights of plastic polymers and physical features, estimating the molecular weight of plastic substances is vital for the use of packaging. Normally, to ensure the power of packaging items, it is vital to remain assured that the quality of the whole packaging method is highly reliant on MW and its distribution. Fundamentally, there are two practical testing processes to find out the average MW and MW delivery of plastic substances. The two examinations are GPC (Gel Permeation Chromatography) and SEC (Size-Exclusion Chromatography). The mechanism of both these examinations is founded on steric isolation of the analytic molecules from the holes of the column packing material.\nIn the present consumer item business, color is one of the most basic/primary /fundamental determinants for communication with customers since it affects the initial impression, recognition, perception and parts of both quality and brand identity. For instance, most international brand products, trademarks, icons are meticulously linked to various special colors. Hence, exact and continuous color measurements are required in terms of controlling quality for the packaging system, which also covered labelling and printing. To find out the color of most packaged products, several types of spectroscopic tools, spectrometers, color data software, spectrophotometers and tools are utilized by scientists dealing with packaging.\nPrimarily, calorimeters can estimate the color of packaging films. For example, the light differences can be traced by different light reflectance of objects and films, total color difference (delta E*) along with color values (L*,a*, b*) is gathered.\nOpacity is defined as the degree of pigmentation of packaging components found in black light. Opacity is helpful for packaging materials which are subtle to both ultraviolent light and visible light. The basic optical features of plastics which are examined are visible light absorption, gloss, refractive index, Ultraviolet rays, haze, yellowness index and color analysis along with transmission. These can be measured and analyzed by using a spectrophotometer.\nThe amount of light reflected by the surface of the material is called gloss. It is estimated at the angles of 85°, 20° and 40°. Haze is defined as the dispersion of light through a material which leads to a glaring sensation. The changes in color from pure white to yellow is estimated by the yellowness index.","domain":"optical_engineering"}
{"url":"http://scienceteacher.org.uk/?page_id=74","date":"2017-07-26T22:35:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549426639.7/warc/CC-MAIN-20170726222036-20170727002036-00350.warc.gz","language_score":0.9430505037307739,"token_count":112,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__106813242","lang":"en","text":"What Is a Solar Cell?\nA solar cell is a device which converts light energy into electrical energy, they are sometimes called photovoltaic cells.\nHow do Solar Cells Work?\nPhotovoltaic cells are made of special materials called semiconductors such as silicon. Basically, when light strikes the cell, a certain portion of it is absorbed within the semiconductor material. This means that the energy of the absorbed light is transferred to the semiconductor. The energy knocks electrons loose, allowing them to flow freely. Electricity is flow of electrons.","domain":"optical_engineering"}
{"url":"https://www.crann.co/blogs/blog/5-important-things-you-didnt-know-about-your-sunglasses","date":"2023-09-25T03:09:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506676.95/warc/CC-MAIN-20230925015430-20230925045430-00790.warc.gz","language_score":0.8762038350105286,"token_count":832,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__24461200","lang":"en","text":"Shades, Sunnies & Raybans Whatever you call them here's some helpful info?\nSunglasses are no longer a luxury accessory only for you to look good in front of your people. So are they really important? Can the eye suffer damages from not wearing them?\n1- Eye Damage\nSeveral studies have certified eye damage due to the sun. And according to long-term researchers, ultraviolet radiation definitely affects the central vision area which is the one that allows maximum visual acuity and lets us see in color! This is why specialists advise the use of filters, I mean, yes you guessed right: sunglasses.\n2- UV protection\nWhen wearing sunglasses with no ultraviolet protection, the pupil dilates and UV rays can easily enter in the eye, this means that it's even more dangerous to wear unprotected lenses against ultraviolet, than to not wear them. So if this is your case, do me and yourself a favor and go throw away those \"fancy\" sunglasses that are only feeding your compliments list.\n3- Color and Protection\nSo your darker sunglasses, because they are darker, it means that they protect you from UV right? OF COURSE NOT! The darkness of the lens only limits the amount of light that reaches the eye, but that doesn't mean that they have the correct UV filter. If you have been wearing glasses without a filter for too long, despite not perceiving the damage, since the vision is correct, long-term vision problems such as defective vision or eye deviations may come along with time.\n4- Polarized Glasses\nWhy are they so special? Why does everybody talk about them? Stated in professional words: \"When the not polarized random light of the sun is reflected on a flat surface, then it becomes polarized\" Which means the light is oriented in a certain direction, instead of randomly. This translates into an annoying glare that can be dangerous for your eyes at certain times while driving for example. This is when polarized sunglasses do their job. They filter this glare. They neutralize uncomfortable reflections from surfaces such as wet roads, water or snow. Still going for the fancy look? We have done a full blog on this here\n5- Polarization and Protection of sunglasses\nIt's important for you to remember this info when getting your next, o.k. let's say fancy, but with protection, sunglasses. The protection level depends on the filter category and it's showed using a number that you can see on the border of the sunglasses, inside the circle. You'll see a number between 1 and 5 in any sunglasses you choose. This number indicates the recommended use, going from dimmed brightness (1) to exceptional brightness (5).\nSample Block Quote\nPraesent vestibulum congue tellus at fringilla. Curabitur vitae semper sem, eu convallis est. Cras felis nunc commodo loremous convallis vitae interdum non nisl. Maecenas ac est sit amet augue pharetra convallis nec danos.\nSample Paragraph Text\nPraesent vestibulum congue tellus at fringilla. Curabitur vitae semper sem, eu convallis est. Cras felis nunc commodo eu convallis vitae interdum non nisl. Maecenas ac est sit amet augue pharetra convallis nec danos dui.\nCras suscipit quam et turpis eleifend vitae malesuada magna congue. Damus id ullamcorper neque. Sed vitae mi a mi pretium aliquet ac sed elitos. Pellentesque nulla eros accumsan quis justo at tincidunt lobortis denimes loremous. Suspendisse vestibulum lectus in lectus volutpat, ut dapibus purus pulvinar. Vestibulum sit amet auctor ipsum.","domain":"optical_engineering"}
{"url":"https://dled.eu/","date":"2024-03-04T21:21:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476532.70/warc/CC-MAIN-20240304200958-20240304230958-00048.warc.gz","language_score":0.8996418714523315,"token_count":409,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__203810312","lang":"en","text":"Welcome to dLED from Bernitz Electronics\nSpecialists in retail LED lighting, electronics and sensor technology for over 20 years\nWin more customers by adding great LED retail lighting to your POS displays\nAn unlit display can fade into the background, but our LED light bars illuminate the merchandise on every shelf to make the whole display an eye-catcher.\nOur LED products can brighten up your POS display and draw attention to your merchandise, which in turn will help generate more sales.\nBoost sales at low cost\nVery low power consumption\nExtremely long life (LED's usually run for 50.000 hours)\nRobust, no fragile internal parts\nEasy to use, virtually maintenance free\nLow operating costs thanks to energy efficiency and long product life\nCatch the customer's eye no matter what type of shelves you have\nOur products are specially designed to fit into small spaces between shelves, are easy to install and are available in a variety of models, colors and sizes.\nSee how the right lighting can enhance your retail display and make your merchandise more appealing to your customers.\nEnjoy benefits for safety & the environment\nLong-lasting, high quality materials and great energy efficiency\nMercury free, no UV radiation\nLow operating temperature\nNo noise or damage to the eyes\nCertified product and environmental safety (CE, RoHS, ETL, TÜV Süd)\ndLED on the cutting edge of smart lighting technology\nMunich, Germany – March 19, 2020 – The research project OpenLicht was launched in September 2016 and stands for the design of smart, customized light solutions based on open source and new materials. OpenLicht was funded by the German Ministry of Education and Research (BMBF), with the goal of enabling new forms of collaboration between science, business, maker and startup community. Infineon Technologies AG is supervising the project in close cooperation with Bernitz Electronics GmbH, Deggendorf Institute of Technology and the Technical University of Dresden...","domain":"optical_engineering"}
{"url":"http://geopolmonitor.com/global-optical-fiber-polarizer-market-supply-demand-scenario-prospects-pipeline-projects-project-economics-industry-survey-2025/","date":"2019-03-21T07:48:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202506.45/warc/CC-MAIN-20190321072128-20190321094128-00223.warc.gz","language_score":0.909771203994751,"token_count":877,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__33889408","lang":"en","text":"Doxorubicin, sold under the trade names Adriamycin among others, is a chemotherapy medication used to treat cancer. This includes breast cancer, bladder cancer, Kaposi’s sarcoma, lymphoma, and acute lymphocytic leukemia. It is often used together with other chemotherapy agents. Doxorubicin is given by injection into a vein. Common side effects include hair loss, bone marrow suppression, vomiting, rash, and inflammation of the mouth. Other serious side effects may include allergic reactions such as anaphylaxis, heart damage, tissue damage at the site of injection, radiation recall, and treatment-related leukemia. People often experience red discoloration of the urine for a few days. Doxorubicin is in the anthracycline and antitumor antibiotic family of medications. It works in part by interfering with the function of DNA.\nThe objective of “Optical Fiber Polarizer Market” Report provides a complete decision-making overview including definition, product specifications, market gains, key geographic regions and imminent Optical Fiber Polarizer industry peers for 2018-2025.\nOptical Fiber Polarizer Market Research Report is a professional and in-depth study on the present state of the Optical Fiber Polarizer industry. The report provides a basic overview of the industry together with definitions, classifications, applications and industry chain structure. The Optical Fiber Polarizer market analysis is provided for the international market including development history, competitive landscape analysis, and major regions’ development status.\nRequest for sample PDF copy of Optical Fiber Polarizer Market research report at:\nThe Key Players that are included in the Global Optical Fiber Polarizer Market report are\nAMS Technologies, Chiral Photonics, CYBEL, Thorlabs, OZ Optics, Chiral Photonics, Corning, Fujikura, Timbercon, DPM Photonics, Eluxi, Phoenix Photonics, AC Photonics, Senko Advanced Components, Electro Optics Technology, Elliot Scientific, Advanced Photonics International, EOSpace\nOptical Fiber Polarizer Market by Key Consumer/Application: Automotive, Aerospace, Electronics, Others\nVarious policies and news are also included in the Global Optical Fiber Polarizer Market report. This includes labour cost, depreciation cost, raw material cost and other costs. The production process is analysed with respect to various aspects like, manufacturing plant distribution, capacity, commercial production, R&D status, raw material source and technology source.\nHave any Query Regarding the Global Optical Fiber Polarizer Market Report? Contact us at:\nMajor Classifications of Optical Fiber Polarizer Market are as follows:\nPM-PM Fiber, SM-PM Fiber, M-SM Fiber\nFurther the report covers following points:\n- Manufacturing Process analysis: Under this, firstly various costs related to manufacturing are analysed (labour cost, material cost, equipment cost, etc.). Based on these costs, price and gross for Optical Fiber Polarizer market are also discussed. Manufacturing plants, their capacity, commercial production and distribution is given with the current status of R&D activities. Also, analysis of sources of raw material is given.\n- Price & Cost Analysis: Analysis of price and cost is done in terms of types and regions. Also, gross and gross margin are analysed with respect to types and regions. Additionally, price, cost, gross for various Optical Fiber Polarizer industry manufacturers are studied.\n- Optical Fiber Polarizer Consumption and Sale Analysis: Consumption value and volume both are given in this section. This includes global consumption as well as region wise consumption and growth rate. Sale prices for several types, regions and applications are also examined and based on sale price levels, Optical Fiber Polarizer market share is analysed.\n- Major Manufacturers’ Analysis: The analysis of Optical Fiber Polarizer market key players is covered in this report to provide thorough information about the competition. Top companies in the market, their profiles and details of the product they offer are given. Capacity, price, cost, revenue and contact information of each firm is also included.\nOptical Fiber Polarizer Regional Analysis includes:\n- Southeast Asia\n- South America\n- South Africa\n- OthersPrice of Report: $3000 (Single User Licence)\nPurchase Optical Fiber Polarizer Market Report at:","domain":"optical_engineering"}
{"url":"https://lowongan-kerja.info/all-digital-binocular-indirect-virtual-video-ophthalmoscope.html","date":"2022-12-03T12:43:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710931.81/warc/CC-MAIN-20221203111902-20221203141902-00331.warc.gz","language_score":0.8700743913650513,"token_count":2767,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__124263758","lang":"en","text":"Since the introduction of the modern self-illuminating binocular indirect ophthalmoscope (BIO) in the middle of the 20th century, developments have focused mainly on improving illumination without significant changes in the core optical system.1.2 The optical principle of BIO depends on reducing the examiner’s interpupillary distance (IPD) with the help of mirrors and/or prisms, so that the visual axis of both eyes of the examiner receives the light rays reflected through the patient’s pupil simultaneously. The light rays returning from the fundus are collimated by an indirect ophthalmoscopy lens to form a real, inverted and laterally inverted image between the patient and the examiner. Performing and anatomically interpreting the BIO examination is a skill that ophthalmology students develop during their residency training programs.3 Traditional BIOs cannot record videos and images of the examination. Video capable BIO devices are commercially available at a higher price, are more bulky, and enable 2D recording of videos and still images of the eye examination with an integrated digital camera.4–6 The limitations of currently available video-capable BIO devices include the possible decentralization of the recorded image from the examiner’s point of view, which requires frequent adjustments.4 and the lack of stereo vision of the recordings, as they provide two-dimensional (2D) rather than stereoscopic 3D images. Here we describe a novel design of a BIO prototype capable of fully digital video recording, which provides stereoscopic, three-dimensional (3D) recording of the fundus image with the possibility of real-time anatomical correction.\nThis prospective observational pilot study was approved by the Human Research Ethics Committee of the Eye Research Institute, Giza, Egypt, and was conducted in accordance with all local laws and the principles of the Declaration of Helsinki. Written consent was obtained from the study participants. The prototype used in this study consists of a generic LED light source and two side-by-side mini-cameras synchronized 15 mm apart. The mini-cameras are connected to a processor, data carrier (Samsung note-9 Android smartphone in the current prototype) and virtual reality kit (VISIONHMD Bigeyes H1 3D Video Glasses in the current prototype) (Figure 1). The synchronized dual cameras are configured to export the recorded video to the Samsung note-9 phone using a docking console (Samsung Dex Dock Station). A custom Android application was designed to capture test media from the dual camera, with the right camera projected to the right half of the screen and the left camera projected to the left half of the screen, creating a side-by-side image. stereogram. The software also allows for optional real-time anatomical correction of the examination view at the touch of an on-screen button or via a wired remote. The test media is then projected onto the virtual reality set so that the image from the right camera is projected onto the right side of the virtual reality goggles and seen by the examinee’s right eye, and the image from the left camera is projected onto the left side. on the side of the virtual reality glasses and seen by the examiner’s left eye.\nFigure 1 (THE) A schematic diagram and (B) is the current prototype of a fully digital binocular indirect virtual video ophthalmoscope, which consists of two mini cameras, a light source, a virtual reality set, a connection console and a smartphone.\nThe prototype was first tested and adjusted on three different schematic eyes, including the Ocular Imaging Eye Model (Ocular Instruments Inc. Bellevue, WA, USA), the RetCam Digital Retinal Camera Practice Kit (Massie Research Laboratories Inc., Pleasanton, CA, USA ) and Reti Eye Model (Gulden Ophthalmics, Elkins Park, PA, USA). The LED lamp has been tested for light intensity and spectrum for safety to the human eye. The light intensity was 3.8 mW/cm2 (the safety limits are at least 1 order of magnitude below the safety limit defined by ISO15004-2.2, which is 706 mW/cm2)7,8 and the light spectrum fell entirely within the safe visible spectrum with no ultraviolet or infrared composition.\nBinocular, stereoscopic indirect ophthalmoscopy was then attempted in 15 eyes of 15 patients in dim light after dilating the pupils with Tropicamide 1% eye drops, without digital real-time anatomical correction of the examination view. Attached video output was attempted to another virtual reality set for observer viewing in 10 patients and to an external monitor in 5 patients.\nBinocular, virtual, stereoscopic indirect ophthalmoscopy can be successfully tested on the three schematic model eyes with this prototype, together with the +20 diopter indirect ophthalmoscopy lens.\nBinocular video stereo ophthalmoscopic media could be obtained for all patients (n = 15). The anatomical correction of the examination view was successful in all patients (n = 15) (Fig. 2 and Additional Video). The adjunctive teaching view can be simultaneously streamed for each patient to a different virtual reality glasses (10 out of 10 patients) and a monitor screen (5 out of 5 patients).\nFigure 2 Indirect retinal photography (THE) optical disc, (B) macula and (C) peripheral retinal pathologies.\nThe aim of this work was to investigate the feasibility of indirect binocular ophthalmoscopy with a newly designed fully digital binocular indirect ophthalmoscope that replaces the traditional optical system of BIO with two side-by-side mini-cameras. This achieves the goal of reducing the examiner’s IPD and enabling virtual binocular indirect simultaneous visualization through the subject’s pupil and projecting two images of the fundus view onto the corresponding screen of a virtual reality set. This allows the examiner to see the fundus virtually and binocularly in real time.\nTraditional BIOs cannot record the examination in pictures or videos. Video-capable BIOs are significantly more expensive, larger in size, provide 2D recordings, and may be limited by decentralization of the camera’s view from the examiner’s view, requiring frequent adjustments.4 In our design, the video examination of the fundus seen by the examiner is simultaneously recorded in a stereoscopic 3D side-by-side format.\nThe image of the fundus seen by the examiner during the traditional BIO examination is inverted and turned sideways compared to the true anatomical orientation.1 With our described design, the anatomical correction of the examination view can be achieved during a real-time examination by digital horizontal inversion and vertical inversion of two side-by-side images of the fundus examination. Although the skill of anatomical interpretation of the BIO image is usually acquired during the years of residency training,3 providing the possibility of an anatomically corrected view can make this part of the BIO examination more comfortable.\nOphthalmology trainees can observe the results of the ophthalmology examination through an additional educational mirror attached to the front of the traditional BIO devices. These teaching mirrors provide a 2D image of the examiner’s view9 which the trainee can see in a narrow window between the examiner and the patient, which may be uncomfortable for the patient. In video-enabled BIOs, students can view test results in 2D, in real time or after the test on a connected monitor.5 Kong et al described the use of two additional cameras with traditional BIO to provide a 3D view to students.10 This makes the BIO bulkier, more difficult to wear, and does not prevent the students’ vision from being distracted from the view seen by the examiner. Our design provides ophthalmology students with a real-time stereoscopic 3D view of the eye exam, which is identical to the image seen by the examiner. The examination can be recorded in 2D or 3D for documentation and clinical education. Limitations of our current temporary prototype include the use of commercially available affordable mini-cameras and virtual reality headsets, as our goal at this point was only proof of concept. We believe that by further developing mini cameras and designing them individually, we can make the view even better and make the device more compact.\nWe describe the novel design of a BIO device suitable for video recording, which replaces the complex optical system of the traditional BIO with two mini cameras placed next to each other. Benefits of this novel design include optional real-time anatomical correction of the examiner’s fundus view and optional identical capture of the examiner’s BIO view in stereoscopic 3D and 2D, which can improve clinical documentation and education.\nData sharing statement\nThe data used in this study are available from the corresponding author upon reasonable request.\nEthics approval and consent to participate\nThis report was approved by the Research Ethics Committee of the Ophthalmological Research Institute and followed the principles of the Declaration of Helsinki. Written informed consent was obtained from all participating patients.\nThe design described in this article is related to an international patent pending by Dr. Omar Solyman (PCT # PCT/US2021/071604).\nNo funding to report.\nDr. Omar Solyman initiated the launch of ophthalmic hardware and software solutions for Wadjet: the Eye Gadget. The design of the prototype described in this article is related to a pending international patent by Dr. Omar Solyman (PCT # PCT/US2021/071604). The authors report no other conflicts of interest in this work.\n1. Brockhurst RJ, Tour RL. Modern indirect ophthalmic examination. Am J Ophthalmol. 1956;41(2):265–272. doi:10.1016/0002-9394(56)92021-9\n2. Kothari M, Kothari K, Kadam S, Mota P, Chipade S. Conversion of conventional wired halogen illuminated indirect ophthalmoscope to wireless LED illuminated indirect ophthalmoscope at less than Rs 1000/-. Indian J Ophthalmol. 2015;63(1):42–45. doi:10.4103/0301-4738.151466\n3. Rai AS, Rai AS, Mavrikakis E, Lam WC. Binocular indirect ophthalmoscopy training for beginners using an augmented reality simulator. Can J Ophthalmol J Can Ophthalmol. 2017;52(5):430–434. doi:10.1016/j.jcjo.2017.02.015\n4. Vantage Plus Digital Instructions Manual. Available at: https://support.keeler-global.com/_manuals/Indirect%20Ophthlmoscopes/Vantage%20Plus%20Digital%20(EP59-09863-art-F)/EP59-09863-art-F.pdf.\n5. Sridhar J, Shahlaee A, Mehta S, et al. The utility of structured video, indirect, ophthalmoscope-guided education in improving the self-confidence and skills of resident ophthalmologists. Ophthalmol Retina. 2017;1(4):282–287. doi:10.1016/j.oret.2016.12.010\n6. Ho T, Lee TC, Choe JY, Nallasamy S. Evaluation of real-time video of digital indirect ophthalmoscope for telemedicine consultations of retinopathy of prematurity. J Telemed Telecare. 2020;1357633X20958240. doi:10.1177/1357633X20958240\n7. Solyman OM, Hamdy O, Abdelkawi SA, Hassan AA. Examining the characteristics of a sample smartphone light-emitting diode (LED) flashlight for the safety of indirect retinal photography. Pan Afr Med J. 2022;43:15. doi:10.11604/pamj.2022.43.15.32963\n8. Hong SC, Wynn-Williams G, Wilson G. Safety of iPhone retinal photography. J Med Eng Technol. 2017;41(3):165–169. doi:10.1080/03091902.2016.1264491\n9. Saunders RA, Bluestein EC, Berland JE, Donahue ML, Wilson ME, Rust PF. Can non-ophthalmologists screen for retinopathy of prematurity? J Pediatr Ophthalmol Strabismus. 1995;32(5):302–304; discussion 305. doi:10.3928/0191-3913-19950901-08\n10. Kong HJ, Cha JP, Seo JM, Hwang JM, Chung H, Kim HC. Development of a cold light indirect ophthalmic video system for sharing stereopsis. Annu Int Conf IEEE Eng Med Biol Soc IEEE Eng Med Biol Soc Annu Int Conf. 2007;2007:2219–2222. doi:10.1109/IEMBS.2007.4352765","domain":"optical_engineering"}
{"url":"https://americantribune.co/zoey-exporting-co-ltd-is-committed-to-delivering-high-quality-laser-machinery-in-china/","date":"2023-10-01T22:47:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510941.58/warc/CC-MAIN-20231001205332-20231001235332-00607.warc.gz","language_score":0.918153703212738,"token_count":807,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__56659760","lang":"en","text":"With a strong emphasis on innovation and customer satisfaction, Zoey Exporting Co. Ltd has established itself as a trusted name in the laser machinery industry. It is committed to delivering high-quality laser machinery to customers globally.\nShenzhen, China (June 15, 2023) – Zoey Exporting Co. Ltd, a prominent player in the laser machinery industry, is proud to announce its position as a leading manufacturer and trader of industrial laser marking, laser engraving machines, and various other laser machineries. The company is committed to delivering high-quality laser machine products to customers worldwide, while also providing competitive services and prices.\nWith a strong focus on innovation and customer satisfaction, it has established itself as a trusted name in the laser machinery market. The company’s extensive product portfolio includes cutting-edge laser welding machines, such as , fiber laser welding machine, and master laser welding machine. These machines are designed to meet the diverse needs of industrial applications, offering exceptional precision and efficiency.\nZoey Exporting Co. Ltd takes pride in its commitment to excellence, ensuring that its laser welding machines meets the highest industry standards. The company’s laser welding machines are built with state-of-the-art technology, incorporating advanced features that guarantee optimal performance and reliability. Customers can rely on it to provide laser welding machines that deliver outstanding results, making it the preferred choice for industrial applications.\nFurthermore, Zoey Exporting Co. Ltd understands the importance of accessibility and affordability in the laser machinery market. As such, the company offers a wide range of , catering to businesses of all sizes and budgets. Whether it is a large-scale industrial operation or a small jewelry repair shop requiring laser welding solutions, the company has the perfect machinery to suit every need.\nWhen it comes to jewelry repair, Zoey Exporting Co. Ltd also specializes in laser welding machines specifically designed for the jewelry industry. With its laser welding machines, jewelry repair becomes a seamless process, allowing for precise repairs without damaging delicate gemstones or precious metals. The company’s expertise in laser technology ensures that jewelry artisans and professionals can restore and enhance jewelry pieces with unparalleled precision and craftsmanship.\nIn addition to its welding machines, the company offers a comprehensive range of laser marking machines suitable for various applications. From portable laser marking machines for metal to , handheld fiber laser marking machine, and desktop fiber laser marking machine, the company provides versatile solutions for industries requiring accurate and permanent marking.\nZoey Exporting Co. Ltd operates from China, a global hub for manufacturing and technological advancements. The company’s strategic location allows for efficient production processes and easy access to international markets. Leveraging its extensive network and expertise, the manufacturer is able to deliver laser machinery solutions worldwide to customers, ensuring timely delivery and exceptional customer service.\nAs a testament to its commitment to quality and customer satisfaction, the manufacturer has garnered a strong reputation in the laser machinery industry. The company has received accolades from satisfied customers who have experienced the reliability and performance of its laser welding and marking machines.\nAbout Zoey Exporting Co. Ltd\nZoey Exporting Co. Ltd is a leading manufacturer and trader of industrial laser marking, laser engraving machines, and various other laser machineries. Based in China, the company is committed to delivering china co2 laser marking machine and other high-quality laser machine products to customers worldwide at competitive prices.\nFor further information or for placing an order, visit\nZoey Exporting Co. Ltd\nBuilding C, No. 12, Fifth Industrial Zone, Xia Village, Shenzhen, China\nEmail: [email protected]\nInformation contained on this page is provided by an independent third-party content provider. Binary News Network and this site make no warranties or representations in connection therewith. If you are affiliated with this page and would like it removed please contact [email protected]","domain":"optical_engineering"}
{"url":"https://www.jainsonslightsonline.com/cob-led-downlights","date":"2023-10-04T03:37:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511351.18/warc/CC-MAIN-20231004020329-20231004050329-00544.warc.gz","language_score":0.9497697353363037,"token_count":479,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__32944572","lang":"en","text":"LED lights are found to be quite popular nowadays as the best DIY lighting solution that is applicable for any occasion. And this popularity has finally given rise to COB LED downlights. In the LED light world, COB is considered to be an abbreviation for Chip on Board which is means a package of LED dice directly connected to PCB (circuit board). This LED light sequence is even discovered in the format of flexible strip light therefore it is termed a flip-chip. This is the form of lighting that is in the form of condensed design that significantly reduces the size as well as allows them to get packed closer together along with further miniaturize LED-based lighting.\nJainsons lighting with the hope to provide elegance and sophistication to space has comes with the introduction of LED technology used in the cob downlights. This is the option that does not require any special LED hotspots even if it having minimal space to gain a non-messy lighting solution. The diode used is of larger size that is placed close so that the light could be distributed widely on the surface to get illuminated and help in avoiding the problem of an eyesore. It is available in wide color options and is found to be quite flexible in comparison to other lighting options.\nThese are Led focused lights using Chip on Board (COB) Led Chips and they are installed in the false ceiling made of POP, Gipsom etc\nThere are various Applications of COB Downlights as follows:\n- Product display Lighting in showrooms and Retail Shops.\n- Accent lighting in the homes for beatification\n- They are used as niche lights to light up any artefacts or decorative showpiece kept in them.\n- Wall highlighting is another use. The focus lights are placed near the wall to create scones of light effect on the wall thus highlighting the wall\nThe Chip on board ( COB) light have various advantages over the traditional panel diffused lighting as follows:\n- They have a single point source of light thus we can focus light with the use of an optics.\n- They are a complete package and they don't require a special PCB or mounting of LEDs, thus they are easy to manufacture and easy to maintain and repair.\n- Traditional diffused lights are used generally for ambient lighting, thus we need a focus COB light for accent lighting of the place.","domain":"optical_engineering"}
{"url":"http://www.rxxtt.com/product-laser_cutting_engraver","date":"2021-08-04T15:05:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154878.27/warc/CC-MAIN-20210804142918-20210804172918-00329.warc.gz","language_score":0.8174802660942078,"token_count":789,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__199406016","lang":"en","text":"AOL lasers engraver cutting machine are widely used in industrial and non-industrial activities for marking, engraving, embellishing and cutting any material, from plastic to metal, to ceramic, to organic materials, etc.\nIn the field of laser machines, it mainly produces co2 laser machines and 3D internal engraving machines, In the field of laser machines, the main production of carbon dioxide laser machines, 3D internal engraving machines. 300w 500w 900w multiple models to choose from\nThe mastery of different laser sources allows us to meet all identification, traceability, personalization and signage needs with an extensive range of standard and customized laser machines.\nChina Auto Feeding Laser Cutting Machine\nFeatures of China auto feeding laser cutting engraving machine\n1.The structure of the auto feeding laser cutting engraving machine is more compact and more reasonable, the electric performance steady; The type of the machine has double efficacy of high-speed engraving and high-speed cutting, the precision is high.\n2.The import guide rail equipped with the machine runs steadily\nMini Metal Laser Cutting Engraving Machine\n1.AOL mini metal laser cutting engraving machine, able to engrave various non-metals, like paper, acrylic, double-color plate, marble, wood, MDF, plywood, textile, leather, glass, etc.\n2.Widely applied in craft gifts, Chinese paper cutting, advertising signs, clothes, furniture and many other industries.\nMetal And Non-metal Laser graver Cutting Engraver\n1.AOL laser graver cutter used accurate argon shielded arc welding, to make sure 20 years usage without deformation.\n2.AOL laser cutter adopting imported sensor, precise laser cutting head, can cut metal and non-metal materials.\n3.Our laser engrave cutting machine adopts high precision collimator for testing to install the guide rail, precision is 0.01mm.\nChina Laser Paper Cutting Engraving Machine\n1. Special Compact structure design, Small footprint, light and smooth transmission, both of engraving and cutting functions, and very good at engraving.\n2. DSP offline Digital controlling technology, reliable and simple operation.\n3. Latest software, match to various design software such as AutoCAD, CorelDraw etc.\n1325 Acrylic Metal Laser Cutting Machine\n1. Adopts moving gantry structure, imported high-precision linear guide, smooth transmission, high precision.\n2. With the moving beam as a whole welded structure, machine bed is tough after annealing, and then the vibration aging treatment, can completely eliminate the stress of welding and machining, good rigidity, high accuracy can be maintained for a long time does not deform.\nSmall Mini Laser Engraving Machine\n1)Laser axe DIY min laser engraver.\n2)Equipped with 405nm 500mW blue laser moule with heatsink,can work continuously 1-2 hours.\n3)Two pieces 42mm stepper motor power drive, fast moving speed and quiet, can use it in home or office no worry about noise producing.\nCCD Camera Laser Cutting Engraving Machine\n1.Best motion structure and components ,equipped with zinc-iron alloy honey-comb working table, durable,easy to clean and stable,;Focus lens and reflect molybdenum mirrors guarantee the powerful cutting strength,\nTextile Fabric Auto Feeding Laser Cutter\nAuto-Feeding Double Heads Laser Cutting Machine adopt the auto-feeding system working table, used to cut soft materials in rolls automatically. This laser cutting machines equipped with double cutting heads and auto feeding system, especially suitable to the mass laser cutting and engraving of appliqué embroidery, textile, fabric etc.","domain":"optical_engineering"}
{"url":"http://www.advancedglass.net/products.html","date":"2020-01-25T11:59:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251672440.80/warc/CC-MAIN-20200125101544-20200125130544-00375.warc.gz","language_score":0.8517259359359741,"token_count":577,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__243847063","lang":"en","text":"OPTICAL GLASS PRODUCTS\nwe offer a wide range of custom optical glass products\nAGI WORKS WITH MANY OPTICAL MATERIALS\nAdvanced Glass Industries processes many type of glass and glass ceramics. We frequently work with fused silica, fused quartz, optical glass and glass ceramics, low expansion materials, filter glass, commercial glasses, industrial glasses, and many other types of optical materials including glass and ceramics. We are always happy to work with customer supplied material.\nWE KEEP A LARGE INVENTORY OF OPTICAL MATERIAL ON HAND\nWe maintain an extensive raw\nmaterial inventory to provide our customers\nthe quickest possible deliveries. We stock a\nfull range of optical materials manufactured\nby the world's best, most reliable\nsuppliers, including Asahi,\nQuartz, and more. And we work closely\nwith our glass suppliers to bring in\nmaterial quickly when needed.\nAGI PROCESSES GLASS IN MANY CONFIGURATIONS\nAdvanced Glass Industries\nprovides made-to-order glass and ceramic\nparts. We offer custom molded and machined\nglass blanks in many configurations\nblanks (plano, spherical,\ncylindrical, toroidal, parabolic, aspheric),\nmirror blanks, windows (pressure\nwindows, sight glass, viewport windows),\nsquares, rectangles, unique shapes.\nPRECISION OPTICAL MANUFACTURING FOR ORDERS OF ANY SCALE\nAdvanced Glass Industries would be delighted to serve as a resource for all your optical glass blank and glass machining needs—both big and small. Our flexible and continually expanding glass molding and glass machining capabilities can produce both micro-sized and macro-sized parts, along with everything in between. And whether you need one prototype piece, or a 10,000 piece production run, AGI can help.\nbeyond precision optical glass blanks\nARTISTS & CONSUMERS\nAGI can machine almost anything you can dream of from glass. We are always excited to partner with glass artists, and can provide custom specialty consumer products ranging from glass furniture, to glass countertops, to custom glass monuments or display pieces.\nUsed Optical Equipment\nAdvanced Glass Industries buys and sells used optical equipment and precision optical machinery. Looking for optical equipment? Check out our most up-to-date list of available machines and instruments. Have something to sell? Check out our list to see what we're looking for.\nAGI supplies made-to-specification sight\nglasses, viewports, and pressure windows in a\nvariety of optical materials including fused\nquartz, pyrex, and more. We have the\nfabrication capabilities to make windows in\nwhatever shape and thickness you need","domain":"optical_engineering"}
{"url":"https://asktelegraph.com/2018/07/10/global-3d-optical-surface-profilers-profilometers-market-research-report-2018-market-data-analysis/","date":"2019-08-25T00:13:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027322160.92/warc/CC-MAIN-20190825000550-20190825022550-00438.warc.gz","language_score":0.88120037317276,"token_count":1059,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__115108689","lang":"en","text":"The 3D Optical Surface Profilers (Profilometers) Market Research report clarifies the past experience and trends, on the basis of these past experiences, it offers the future prediction considering other factors influencing the growth rate. This worldwide report offers the detailed analysis of the important factors such as market dynamics (DROT), PEST, and PORTER which assists the growth of the 3D Optical Surface Profilers (Profilometers) Industry. These past experience and factors assist to build the strategy and future planning of 3D Optical Surface Profilers (Profilometers) Market and hold a place in the competitive world.\nThe 3D Optical Surface Profilers (Profilometers) industry Market report offers the competitive scenario in the 3D Optical Surface Profilers (Profilometers) industry based on the type of product, applications, and the companies that are present in the 3D Optical Surface Profilers (Profilometers) market, and covers the company profiles, their development policies, lined up products and recent launched along with the SWOT analysis of companies.\nTo get a complete report sample from this link: http://www.qyresearchglobal.com/goods-1724414.html\nThis report studies the global 3D Optical Surface Profilers (Profilometers) market status and forecast, categorizes the global 3D Optical Surface Profilers (Profilometers) market size (value & volume) by manufacturers, type, application, and region. This report focuses on the top manufacturers in North America, Europe, Japan, China, and other regions (India, Southeast Asia, Central & South America, and Middle East & Africa).\nThis report studies the 3D Optical Surface Profilers (Profilometers) market\n3D Optical Surface Profilers(Profilometers) is a kind of profilometer using Non-contact technology. They are typically built on advanced optical microscopes, providing the dual advantages of excellent imaging and no contact with the surface being measured. They use a variety of light sources, usually using high-brightness LEDs, to illuminate the sample and sophisticated cameras to capture the images which are then converted into height information using techniques such as confocal microscopy or interferometry.\nIn the coming years there is an increasing demand for 3D optical surface profilers in the regions of North America and Europe that is expected to drive the market for more advanced 3D optical surface profilers. Increasing of automotive fields expenditures, more-intense competition, launches in introducing new products, increasing of spending on general industry, retrofitting and renovation of old technology, increasing adoption of 3D optical surface profilers in developing countries will drive growth in global market.\nThe consumption volume of 3D optical surface profilers is related to downstream industries and global economy. As there will always be some uncertain in the global economy in the following years, the growth rate of 3D optical surface profilers industry may not keep that fast. But it is surely forecasted that the market of 3D optical surface profilers is still promising.\nThe product average price declined in the past few years due to the technology development, the average price will keep the trend in the few future years due to increasing mature manufacturing technology and lowing cost of raw materials.\nThe global 3D Optical Surface Profilers (Profilometers) market is valued at 140 million US$ in 2017 and will reach 180 million US$ by the end of 2025, growing at a CAGR of 3.9% during 2018-2025.\nThe major manufacturers covered in this report\nBruker Nano Surfaces\nGeographically, this report studies the top producers and consumers, focuses on product capacity, production, value, consumption, market share and growth opportunity in these key regions, covering\nThe study objectives of this report are:\nTo study and analyze the global 3D Optical Surface Profilers (Profilometers) market size (value & volume) by company, key regions/countries, products and application, history data from 2013 to 2017, and forecast to 2025.\nTo understand the structure of 3D Optical Surface Profilers (Profilometers) market by identifying its various subsegments.\nTo share detailed information about the key factors influencing the growth of the market (growth potential, opportunities, drivers, industry-specific challenges and risks).\nFocuses on the key global 3D Optical Surface Profilers (Profilometers) manufacturers, to define, describe and analyze the sales volume, value, market share, market competition landscape, SWOT analysis and development plans in next few years.\nTo analyze the 3D Optical Surface Profilers (Profilometers) with respect to individual growth trends, future prospects, and their contribution to the total market.\nTo project the value and volume of 3D Optical Surface Profilers (Profilometers) submarkets, with respect to key regions (along with their respective key countries).\nTo analyze competitive developments such as expansions, agreements, new product launches, and acquisitions in the market.\nTo strategically profile the key players and comprehensively analyze their growth strategies.\nCompany Name: QYResearch CO.,LIMITED | focus on Market Survey and Research\nTina| Sales Managers","domain":"optical_engineering"}
{"url":"http://hamamatsu.magnet.fsu.edu/","date":"2024-04-22T14:54:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818312.80/warc/CC-MAIN-20240422144517-20240422174517-00817.warc.gz","language_score":0.9013000726699829,"token_count":632,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__88440791","lang":"en","text":"By incorporating on-chip multiplication gain, the electron multiplying CCD achieves, in an all solid-state sensor, the single-photon detection sensitivity typical of intensified or electron-bombarded CCDs at much lower cost and without compromising the quantum efficiency and resolution characteristics of the conventional CCD structure.\nWelcome to the Hamamatsu educational website featuring a wide variety of review articles, interactive tutorials, image galleries, and product descriptions designed to assist our visitors in exploring the fascinating world of digital imaging.\nHamamatsu introduces the new ORCA-Flash2.8, our first high-sensitivity digital camera based on a next-generation scientific CMOS image sensor. Designed for low-light imaging at high frame rates, this new camera combines high resolution, high sensitivity, high speed, and low noise at an affordable price.\nAt the camera's core is a new scientific CMOS image sensor, the FL-280, which features 2.8 megapixels and a pixel size of 3.63 × 3.63 µm, ensuring high resolution. The sensor's wavelength sensitivity ranges from UV to visible, with peak sensitivity (over 60% QE) at about 450-500 nm. In addition to high sensitivity, the sensor features low readout noise, typically 3 electrons r.m.s. The sensor's design keeps the readout noise minimal even at very fast readout speeds, unlike traditional image sensors. The FL-280 sensor also has low dark current. Because of its intrinsically low dark current, the sensor requires cooling to +5°C only.\nBuilt for high-speed imaging, the ORCA-Flash2.8's readout speed ranges from 45 frames/second at full resolution up to 1273 frames/second with sub-array readout. Other features of the camera include external trigger functions, real-time corrections, and analog gain. The camera is designed for quantitative measurements with 12-bit output, and it interfaces with a PC using a CameraLink frame grabber board (included with the camera).\nThe ORCA-Flash2.8 is suitable for a wide variety of applications. These include life science imaging such as ratio imaging, FRET, FISH, TIRF microscopy, and real-time confocal microscopy. Other applications include semiconductor inspection and industrial imaging.\nTahr Ovary Epithelial Cells (HJ1.Ov)\nLive tahr ovary cells were treated with MitoTracker Red CMXRos in media containing calf serum for one hour followed by fixation with paraformaldehyde. The fixed cells were then counterstaned with Hoechst 33258 to highlight nuclei in order to examine the spatial relationship between mitochondria and the nucleus in this cell line. Images were recorded in grayscale with a Hamamatsu Orca-AG camera system coupled to an Olympus BX-51 microscope equipped with bandpass emission fluorescence filter optical blocks provided by Omega Optical. During the processing stage, individual image channels were pseudocolored with RGB values corresponding to each of the fluorophore emission spectral profiles.","domain":"optical_engineering"}
{"url":"http://cespledex.com/products/portable-lighting-and-electrical-equipment/portable-ex-proof-lighting/ces-ex-fl-6117","date":"2021-10-20T07:38:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585302.91/warc/CC-MAIN-20211020055136-20211020085136-00040.warc.gz","language_score":0.9153839945793152,"token_count":608,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__235318927","lang":"en","text":"High brightness, lamp luminous flux > 4000lm, 6m center illuminance (Spotlight) > 1000lx, 3m average illuminance (floodlight) > 200lx.\nLight weight, the overall weight of the lamp is 6kg, which can be carried by hand, shoulder and back, which makes it more portable.\nMultifunctional, the lifting rod can be raised to 1.2m to provide fixed lighting or folded for use as a searchlight.\nLong operation duration, strong light discharge time > 10h, working light discharge time > 16h, meeting the long duration requirement of construction lighting for evening works.\nMultiple lighting output levels, with spotlight, floodlight and ultra-strong light mode, as well as red and blue warning lights, to meet the lighting needs of different places.\nHigh explosion proof potency, ex markings: Ex de ib mbIIC T6 Gb，it can be safely used in various flammable and explosive places。\nHigh protection, the overall protection grade of the lamp is IP66, resistant to 1m drop, and can be reliably used in various rain and snow environments.\nFlexible and convenient, the lamp cap can rotate 360 degrees horizontally and be adjusted 135 degrees vertically, which gives the lamp the ability to provide lighting in any direction;\nNotes Precautions for mobile explosion-proof equipment：\nAfter unpacking, the included lamp and accompanying devices shall be cleaned before first use；\nWhen operating the lifting rod, the operator shall ensure that the body, especially the head, is outside the lifting range of the lamp cap. At the same time, after the lifting rod is lifted for each section, the wrench of this section shall be clamped tightly to avoid personal injury caused by the falling of the lamp cap.\nAfter the lamp cap is raised, if the lamp needs to be moved, the lifting rod must be lowered in place before it can be moved.\nWhen the lifting rod is put down, it is strictly forbidden to put your hand on the handle. Only grab the handle after making sure that the lifting rod is completely put into the lifting rod clip to avoid hurting your hand；\nWhen the lamp is working, the lamp cap shell will generate heat and dissipate heat (which is a normal phenomenon). Do not touch the heated parts of the lamp cap for long durations to avoid scalding; When the lamp stops working, do not immediately touch the heated parts of the lamp cap to avoid scalding.\nIt is strictly prohibited to disassemble the lamps by yourself, and the maintenance of lamps must be carried out by professionals.\nThe CES-EX-FL-6117 led explosion-proof portable mobile lamp is developed based on market demands, and is mainly suitable for use in small-scale construction, maintenance and emergency lighting in flammable and explosive places such as oil refining, chemical industry and oil field.","domain":"optical_engineering"}
{"url":"https://essaydevelopers.com/writer-chooses-topics/","date":"2023-10-01T08:11:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510810.46/warc/CC-MAIN-20231001073649-20231001103649-00082.warc.gz","language_score":0.8962798714637756,"token_count":166,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__97958916","lang":"en","text":"Writer chooses topics\n1.) Discuss why animal eyes glow green when illuminated at night. What causes “red – eye” in flash pictures?\n2.) Is blue sky polarized, is the sun polarized? Blue light reflected from a glass table polarized? Why do some sunglasses block glare of off water and others do not? What other applications are there for polarizers?\n3.) Discuss Chromatic abberation in a lens.\n4.) Why does a blue sky have white clouds? Why do the clouds appear red at sunset. What is the “Green Flash seen in some sunsets in Hawaii?\n5) IR and UV – Compare IR and UV traversing air in terms of velocity,\nwavelength, and energy. Also include some uses for IR and UV that you have researched.","domain":"optical_engineering"}
{"url":"http://cctv-cameralens.buy.xpandrally.com/profile.html","date":"2020-10-01T22:20:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402132335.99/warc/CC-MAIN-20201001210429-20201002000429-00168.warc.gz","language_score":0.882889449596405,"token_count":318,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__205464908","lang":"en","text":"Octavia Optics Technology Co., Ltd. was established in May 2008. It\nis located in beautiful Fujian Province and has a product sales\ncenter in Shenzhen.\nThe company is committed to the research and development,\nproduction and sales of all kinds of Optical Lenses, Camera Lenses,\noptoelectronic integrated instruments, equipment and key\nCompany Business Philosophy: \"Customer First, Quality First,\nTechnology-based, Integration and Innovation\". Based on Sincerity,\nPractical Innovation, and Integration of the attitude of common\nprosperity, dedicated to every customer carefully to produce every\nLens. Ingenuity to create each piece of Lens, never ending!\nCorporate Idea: Iingenuity ／ Fusion ／ Innovation ／Common Prosperity\nBusiness Philosophy: Customer First, Quality first,\nTechnology-based, Integration and Innovation.\nIntegrate the advantages of Optics Lens, Lenses and Instrument\nresources, establish a unique R&D and production system,\npromote the integration of optoelectronic technology, and achieve\nachievements in the field of lens, optoelectronic instrument and\nTalent Philosophy: Trust and Respect, Professional Dedication,\nSupply Chain Concept:\nSuppliers are partners, which are more important than Banks. Only\nby treating partners honestly and kindly can we go further with\nProcessing Lenses with heart , focusing Lens, achieving\nphotoelectric products, and becoming a well-known photoelectric\nintegration enterprise in the world.","domain":"optical_engineering"}
{"url":"http://www.hobbylobby.com/p/43426","date":"2016-04-29T11:38:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-18/segments/1461860111313.83/warc/CC-MAIN-20160428161511-00104-ip-10-239-7-51.ec2.internal.warc.gz","language_score":0.8519935011863708,"token_count":173,"dump":"CC-MAIN-2016-18","global_id":"webtext-fineweb__CC-MAIN-2016-18__0__75632852","lang":"en","text":"Make your home a happy place\nChoose naturally efficient Verilux light with this Graphite Original Natural Spectrum Desk Lamp. The bright, soothing, natural spectrum daylight lamp enhances low vision, reduces glare, eyestrain and fatigue, and allows you to experience greater contrast and truer colors.\nAn exclusive parabolic light diffuser protects you from harsh, eye-straining glare by directing light away from your eyes and onto your book or project area. The lamp features flicker elimination technology - advanced micro-electronics constantly monitor and adjust the flow of electricity to the lamp eliminating the Stroboscopic Flicker Effect, which is a fluctuation in light quality found in other fluorescent light sources that contributes to eyestrain and headaches. A flexible steel gooseneck directs concentrated light where you need it, or allows you to flood an area for broader coverage.","domain":"optical_engineering"}
{"url":"http://www.newfoxy.com/2017/08/24/audi-developing-solar-panels-help-power-electric-vehicles/","date":"2020-06-05T08:16:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348496026.74/warc/CC-MAIN-20200605080742-20200605110742-00405.warc.gz","language_score":0.9363202452659607,"token_count":481,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__161689544","lang":"en","text":"AUDI developing solar panels to help power its electric vehicles\ntogether with alta devices, AUDI are developing thin-film solar panels to be fitted into the panoramic glass roofs of its car designs. this technology aims to generate solar energy in order to increase the range of its forthcoming electric vehicles, such as the already previewed ‘e-tron sportback’. as well as its small size and flexibility, the green innovations claim to have an efficiency of 25% and perform well even in low light conditions.\nthe AUDI e-tron quattro concept\nall images courtesy of AUDI AG\n‘the range of electric cars plays a decisive role for our customers. together with alta devices and hanergy, we plan to install innovative solar technology in our electric cars that will extend their range and is also sustainable,’ stated AUDI board of management member for procurement, dr. bernd martens. ‘that would be a milestone along the way to achieving sustainable, emission-free mobility.‘\ndr. ding jian, senior vice president of hanergy thin film power group limited, CEO of alta devices, inc. and co-leader of the AUDI/hanergy thin film solar cell research and development project, said: ‘this partnership with AUDI is alta devices’ first cooperation with a high-end auto brand. by combining alta’s continuing breakthroughs in solar technology and AUDI’s drive toward a sustainable mobility of the future, we will shape the solar car of the future.‘\nan example of the thin-film solar cells to be fitted in panoramic glass roofs of AUDI models\nwith the first prototype set to be build by the end of 2017, AUDI are teaming up with alta devices, a subsidiary of the chinese solar-cell specialists, hanergy. this development will see the ultra-thin solar cells be placed within the automobiles’ glass roofs, but the german brand are thinking on a much bigger scale in the long term. in the future, they are planning to cover almost the entire top surface with solar cells, enhancing the sun’s energy to power the car’s electrical system, like the air-conditioning, and thus improve the EV’s driving range.","domain":"optical_engineering"}
{"url":"https://www.coastalgeomorphic.com/remote-sensing","date":"2018-05-26T06:08:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867311.83/warc/CC-MAIN-20180526053929-20180526073929-00181.warc.gz","language_score":0.8978306651115417,"token_count":136,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__136103514","lang":"en","text":"Although in-situ measurements provide detailed measurements at specific locations, the ability to measure and observe from afar has proven particularly useful for understanding complex 1D, 2D, and 3D phenomena. In my research this has involved the use of LiDAR technology to measure dense elevation measurements and optical methods to infer information about the subaerial or subaqueous landscape. These dense datasets are key to understanding many complex spatio-temporal phenomena and below are a subset of the topics that I (collaboratively) have worked on in my career.\nBeach and Dune Landscape Reconstruction Using Structure from Motion\nOptical Estimation of Subtidal Bathymetry","domain":"optical_engineering"}
{"url":"http://medicaltourismvietnam.com/procedures/ophthalmology/relex-smile-surgery/","date":"2024-02-23T17:32:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474440.42/warc/CC-MAIN-20240223153350-20240223183350-00130.warc.gz","language_score":0.9282088279724121,"token_count":1884,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__30285796","lang":"en","text":"ReLEx SMILE surgery embarks a paradigm shift in ophthalmic surgery. Small incision lenticule extraction or SMILE has been adapted from refractive lenticule extraction or ReLEx and it is regarded as a state-of-the-art corneal refraction correction technique. ReLEx uses a single laser for the correction of refractive errors which was further modified as SMILE that requires no retractable flap further reducing patient inconvenience and surgical time. Higher order aberrations in myopia with or without astigmatism are preferably treated by SMILE that leads to better quality of vision. It is a minimally invasive procedure wherein a lenticule is created in the cornea using femtosecond laser and extracted via a keyhole incision in the cornea.\nWhat happens during the procedure?\n- Preoperative preparation: Contact lenses are to be removed at least 3-4 days prior to the surgery. The patient is educated regarding the procedure and an informed consent is duly obtained. Antibiotics and anesthesia are topically administered in both the eyes.\n- Docking: The patient is placed in a supine position and covered via a sterile drape. Local anesthesia is injected and a speculum is inserted such that the patient’s eye is centered along the VisuMax femtosecond laser delivery system. The patient is asked to fix his/her gaze on the green internal fixation light. The bed of the patient is moved up, and a contact is established between the corneal surface of the patient’s eyes and the machine’s contact lens. This contact leads to the formation of a meniscus tear film and subsequently the fixation light becomes apparent. The beam is focused according to the patient’s refractive power. After the centering is confirmed, the suction is fixed and the laser is activated for photo-dissection. The patient is supposed to look directly at the green light. This phase of docking is based on the coaxially sighted corneal light reflex (CSCLR), which causes the green light to reflect on the cornea. Infrared light can be used for the confirmation of docking.\n- Femtosecond laser application: A femtosecond laser is used systematically to create a lenticule. The parameters are adjusted depending on the patient’s condition and surgeon’s preference. Optical zones are set separately for the correction of spherical errors and astigmatism, while the cap diameter and pulse energy are also accordingly adjusted. Using the femtosecond laser, an intrastromal lenticule is formed by selective cutting.\n- Lenticule dissection: A uniform bubble layer is created in the cornea as a result of the femtosecond laser delivery. Two rings are formed which correspond to the diameter of the lenticule which guide the dissection process. Consequently, the lenticule is dissected according to the set parameters.\n- Extraction: Using micro forceps the dissected lenticule is extracted in a circumferential manner. Following which it is analyzed to confirm that it has been removed in entirety. The interface is flushed using a balanced salt solution and the cap is smoothed over the cornea using blunt instruments. Finally, the apposition of the cap is evaluated using the VisuMax laser system.\nWhat to expect post-procedure?\nThe ReLEx SMILE surgical procedure may take 15-20 minutes or even less. The patient experiences an improvement in the vision within a few hours post-surgery. Initially the vision might be foggy but it will become clear gradually within a couple of days or weeks. He/she needs to stay indoors for the first 24 hours. As the vision starts becoming clear then the patient can continue with the daily activities. Light sensitivity may persist for some time during which the patient is instructed to take rest. It is advised not to wash the eyes with water, rather use a salt balanced eye drop as water can irritate the eyes. This is to be done till the sensitivity is lost. Hair wash can be done after two days.\nHow soon does normal life resume?\nIt may take a day or two to adapt to the corrected vision. The patient might experience glare and halos for a couple of weeks postoperatively, which will gradually subside. Patients with presbyopia i.e. age related hardening of the lens leading to refractive errors, will require wearing their glasses or contact lenses. Contact lenses are to be worn only after consulting and as directed by the surgeon, which is mostly allowed after a month or so. Anti Glare glasses are recommended for use when working on computers to provide better shielding.\nWho performs it?\nThe ReLEx SMILE surgery is performed by skilled and experienced eye surgeon.\nAre you a good candidate?\nPatients with higher order aberrations in myopia with or without astigmatism are treated by SMILE. The myopia values ranging between -0.5D and -10D can be corrected via SMILE while astigmatism or cylindrical refractive errors up to -5D are suitably treated by this procedure. The patient should be otherwise healthy with a stable refractive error since a year. Patients between 18-40 years of age are preferred as it can only correct nearsightedness and the errors in distant vision related to age which is termed as presbyopia cannot be treated via this procedure. In patients with higher power a thick lenticule is removed.\nHow to prepare for surgery?\nPatient is advised to stop wearing contact lenses at least 3-4 days prior to the ReLEx SMILE surgery. Avoid wearing cologne or perfume and hairspray. Alcohol containing beauty products are also to be avoided. Eye makeup needs to be thoroughly removed prior to the surgery. It is mandatory to avoid alcohol consumption at least a day before and after the operative procedure as alcohol has strong dehydrating properties that can lead to dry eyes. Wear comfortable clothing. It is advised to be accompanied by a family member, friend or relative and also arrange transportation accordingly beforehand. The surgery is performed as a day care procedure but the patient might be required to stay in the hospital or at home till he vision is clear which might take a day or two so leave should be planned accordingly.\nAre there risks or potential side effects?\n- Suction loss: It is an intraoperative complication seen in 0.8 to 4.4 % of cases. Following the docking of the patient at the laser interface, the patient needs to maintain that position. If there is mobility it may lead to ocular movement resulting in the loss of docking. In such situations either the procedure needs to be stopped or docking needs to be done again.\n- Black spots: Presence of liquid droplets, dust particles or even air between the laser and the ocular surface result in an untreated part of the lenticule which further makes extraction difficult. In patients with a thick cornea and thin lenticule, opaque bubbles are formed.\nAre there alternatives to this procedure?\n- LASIK (laser in-situ keratomileusis): A flap is created in the epithelial layer of the cornea through which the defected part is extracted. This reshaping of the cornea focuses light into the eye and reaches the retina. It can be performed in subjects with nearsighted, farsighted, or astigmatism.\n- PRK (photorefractive keratectomy): It only reshapes the epithelial layer of the cornea via a laser. It is preferred in mild to moderate nearsightedness, farsightedness, or astigmatism.\n- EpiLasik: Similar to PRK, the cornea is reshaped or removed and a soft contact lens is placed over it to protect it during the healing phase.\n- LASEK (laser epithelial keratomileusis): In this procedure a flap is created by dissolving the intercellular substance using an alcoholic solution. Following this a laser is used to reshape the cornea. The flap is repositioned and the healing occurs below it. It can correct nearsightedness, farsightedness, and astigmatism.\n- ALK (automated lamellar keratoplasty): This procedure does not use laser. A flap is created via an incision and the cornea is reshaped. It is used in patients with severe nearsightedness and few levels of farsightedness.\n- AK (astigmatic keratotomy): One or two incisions are made in the cornea that enable it to assume a more round shape and relaxed position. It is preferred for the correction of astigmatism.\n- PRELEX (presbyopic lens exchange): In this procedure a multifocal lens is implanted to correct refractive errors and restore focus.\n- Intacs or intracorneal ring segments (ICR): A small incision is made in the cornea through which two crescent-shaped plastic rings are inserted and the cornea is flattened.","domain":"optical_engineering"}
{"url":"http://ustalab.com/","date":"2022-01-25T05:06:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304760.30/warc/CC-MAIN-20220125035839-20220125065839-00027.warc.gz","language_score":0.8367406129837036,"token_count":446,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__39875117","lang":"en","text":"Functional organic materials have attracted significant attention over the last two decades as electro-active materials for the development of printable and flexible electronic devices such as organic thin-film transistors (OTFTs), light-emitting diodes (OLEDs), light-emitting transistors (OLETs), and photovoltaic cells (OPVs). Owing to their unique features over traditional inorganic materials, they are envisioned as essential components for several next-generation optoelectronic applications including low-power flexible displays/electronic papers, wearable electronics, printable RFID tags/sensors, and flexible solar panels.\n20th century has been the era of mastering chemistry to realize modern functional materials. Based on our group's academic and industrial research expertise in organic optoelectronics, now we’re using chemistry, materials science and nanotechnology to build state-of-the-art, high-performance organic optoelectronic materials of the 21st century.\nOur research in MOENLAB is focused on the theoretical design and synthetic development of new organic molecular and polymeric π-conjugated materials for next-generation optoelectronic devices. In particular, we are interested in molecular/polymeric semiconductors, photocurable dielectrics, surface modifiers, donor/acceptor polymers and emissive host/guest systems.\nSELECTED SCIENTIFIC AWARDS\nThe Science Incentive Award 2020 (Teşvik Ödülü)\nThe Scientific and Technological Research Council of Turkey (TÜBİTAK)\nThe Young Scientists Award 2015 (TÜBA-GEBİP)\nThe Turkish Academy Of Sciences (TÜBA)\nThe Scientist of the Year 2015\nScience Heroes Association (Bilim Kahramanları Derneği)\nDistinguished Young Scientist Award 2014 (Bilim Akademisi-BAGEP)\nThe Science Academy (Bilim Akademisi)\nSELECTED PUBLICATIONS and PATENTS:\nFor the full list, click here ...","domain":"optical_engineering"}
{"url":"https://techreplies.com/created-the-first-camera-with-gigapixels.html","date":"2023-12-06T20:28:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100603.33/warc/CC-MAIN-20231206194439-20231206224439-00241.warc.gz","language_score":0.9511623382568359,"token_count":271,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__67098729","lang":"en","text":"Synchronizing 98 tiny cameras in a single device, electronic engineers of Duke University and the University of Arizona have developed a prototype of a camera that is capable of creating images with a resolution of 5 times higher than the human eye.\nThe device captures data up to 50 gigapixels (50,000 megapixels), a milestone for photography when you consider that the ability of cameras sold today in the market is usually between 8 and 40 megapixels per image – pixels are individual data points in an image, so that a greater number, the higher resolution.\n“In the new device, each microchamber captures information from one area of the field of view and the attached processor in a single image”, says David Brady, co-author of the research. The camera occupies 75 square centimeters, and only 3% of its content corresponds to optics. The rest are electronic and computer components needed to assemble the captured information.\nResearchers believe that within five years the components of the device will be small enough to be marketed and lead to a new generation of gigapixel cameras to the public generally. “The lens is not the problem: we have the best lenses, what we need are electronics and smaller and more efficient processors allow photographers to carry around,” says Brady, who has made known his work in the journal Nature.","domain":"optical_engineering"}
{"url":"https://www.ds-carpart.com/led-projector-lens/48.html","date":"2020-10-20T05:36:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107869933.16/warc/CC-MAIN-20201020050920-20201020080920-00403.warc.gz","language_score":0.7791188955307007,"token_count":114,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__101576936","lang":"en","text":"1.This product adopts LED light source, self-developed light type, new packaging technology, low-light paving, large range of high beam, precise focus, fast start, high brightness, low light decay, long life, high color rendering, more realistic road feeling. .\n2.Intelligent temperature control system, patented heat dissipation design, higher heat dissipation efficiency, and obtained a number of national patent protection\nRed wire Low beam negative electrode\nBlack wire Low beam negative electrode\nBlue wire High beam positive electrode\nGray wire High beam positive electrode","domain":"optical_engineering"}
{"url":"https://www.pro-outdoor.co.za/products/Swarovski-Z6-30mm-2-5-15x56-L-BRH-Reticle-p570181702","date":"2023-12-04T13:53:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00226.warc.gz","language_score":0.7882040739059448,"token_count":270,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__252067554","lang":"en","text":"The Swarovski Z6 2.5-15×56 P L Riflescope BRH Reticle is a brilliant multi-purpose scope designed for hunting in twilight conditions, the HD Optics and lateral parallax correction guarantee you a faultless image. The 6x zoom scope offers an effective range of use, from a field of view suitable for still hunting to a 15x magnification for accurate long-range shots.\nThe hallmark of the Swarovski Z6 rifle scope range is the 6X zoom that combine a large field of view with clear, crisp, pinpoint detail. The large zoom range and eye relief ensure greater flexibility, higher precision, and greater safety when hunting. “When seconds are crucial” – that was the whole concept behind the design of the Swarovski Z6 rifle scope range. The elegant appearance conceals the state-of-the-art technology that gives you maximum performance at the crucial moment.\n|Objective Lens Diameter||56 mm|\n|Exit Pupil Diameter||2.5x 9.5 mm|\n|Eye Relief||90 mm|\n|Field Of View||9.4 -1.5 Degrees|\n|Dioptric Compensation||-3 to +2 dpt|\n|Central Tube Diameter||30 mm|","domain":"optical_engineering"}
{"url":"https://fibertechindustries.com/about-us/","date":"2024-02-26T10:39:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474659.73/warc/CC-MAIN-20240226094435-20240226124435-00035.warc.gz","language_score":0.9501201510429382,"token_count":125,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__5823360","lang":"en","text":"Fiber Tech Industries, LLC is a turnkey utility contractor that specializes in Power and Fiber Construction. Fiber Tech was formed in 2016 with an idea of serving the communications industry as a consultant/management company. This idea quickly turned into reality due to the ever growing demand of fiber construction and the need for more bandwidth. Fiber Tech’s success in fiber optic construction led to opportunities outside of the communication space and in 2018, the company began installing underground power. Today, Fiber Tech installs communication, power, gas, water and sewer.\nDue to the immense demand for fiber and bandwidth, consulting turned into full on construction.","domain":"optical_engineering"}
{"url":"http://bqlumiled.en.made-in-china.com/","date":"2017-03-23T16:12:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218187144.60/warc/CC-MAIN-20170322212947-00139-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9182326197624207,"token_count":116,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__250668399","lang":"en","text":"BQlumiled Co. Ltd is an ISO9001 certified manufacturer of LED lights. Since established in 2005, We have become a premier supplier in the LED lighting industry. Our factory specializes in producing a wide range of indoor and outdoor LED lights such as LED Panel Lights, LED flood Light, LED High bay, LED tube, LED PAR Light, spotlight, ball bulbs and LED Strips.\nAt BQLumiled, our goal is to continue to bring you the most reliable, highest quality LED lighting products. To ensure optimum performace, we require the best ...","domain":"optical_engineering"}
{"url":"https://hidretrofitkit.com/ford-f-150-custom-headlights/","date":"2021-01-16T08:04:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703505861.1/warc/CC-MAIN-20210116074510-20210116104510-00260.warc.gz","language_score":0.8903754949569702,"token_count":334,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__264463556","lang":"en","text":"Find all the Customized Headlights for your Ford F-150\nWhen you are looking at upgrading your F150 retrofit headlights, you have to think better performance headlights. That is why HID Retrofit Kit is dedicated to building top performance 2019 f150 headlights. Sadly, most halo projector headlights on the market are a terrible downgrade to the stock housings. Custom made headlights allows fine-tuning of every part of factory style headlamps by retrofitting the brightest HID and now LED projectors to provide the highest level of light output and night visibility without bothering oncoming traffic.\nFORD F-150 CUSTOMIZED LED HEADLIGHTS\nAutomotive and its higher performance is our passion. If you are planning an upgrade of your Ford F-150 headlights is the first thing that must come to your mind. All our efforts are dedicated to making sure your headlights illuminate to the degree you wish.\n- It comes with an HID Retrofit Kit that makes it easy to switch to HID’s for a powerful performance of Ford F-150 Headlights.\n- We bring you the highest quality of halo projector 2018 f150 led headlights as compared to the market.\n- Custom crafted headlights allow fine-tuning of every part of the headlight with the existing factory set up that makes the installation an easy procedure.\n- We retrofitting the brightest HID’s and LED’s to ensure highest light output for safe night driving experience.\nNew models coming soon! Can’t wait?\nFill out our Headlight Retrofit Service form to get started on a custom set.","domain":"optical_engineering"}
{"url":"https://www.micc.unifi.it/projects/computer-vision/page/2/","date":"2021-05-11T01:25:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991553.4/warc/CC-MAIN-20210510235021-20210511025021-00561.warc.gz","language_score":0.929694652557373,"token_count":416,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__41410866","lang":"en","text":"Partnership with: University of Salerno, University of Verona, University of Palermo\nFunded by: MIUR Ministero of Education, University and Research\nThe project addresses on computer vision and deep learning for person tracking and profiling mainly inside a shopping Mall. The final project’s application is the analysis of the customer’s behavior to provide personalized suggestions at digital signage terminals. The primary goal is to investigate key scientific computer vision issues that are central to such and similar applications and develop innovative solutions with respect to the state of the art.\nfunded by: Leonardo – Finmeccanica\nFREEWAY is a technology transfer project in collaboration with the Italian multinational aerospace, defense and security company Finmeccanica. In this project MICC is transferring its know-how in state-of-the-art computer vision for face and full-body recognition and re-identification.\nAuthors: Tiberio Uricchio, Leonardo Galteri, Lorenzo Seidenari, Marco Bertini, Alberto Del Bimbo\nSmall Pixels stems from research expertise in improving the quality of compressed videos that has been developed over time by the team of proposing members and from trials that have produced encouraging results. Having verified through participation in conferences and events, both the real need of the market for effective solutions and the limited number of valid solutions currently available, the team felt that they could initiate an academic spinoff that after a start-up phase, aimed at the realization of a competitive product, is able to position itself on the international market.\neSERVANT. Project co-financed under Tuscany POR FESR 2014-2020. Analysing, monitoring and connecting people in large facilities. The eSERVANT project was led by QUID Informatica S.p.A and was carried out in collaboration with the partners Sokom srl, Sintra Consulting srl, Magenta S.R.L. and the DIISM of the University of Siena.","domain":"optical_engineering"}
{"url":"https://ergobalance.blogspot.com/2009/09/night-time-solar-energy.html","date":"2024-04-20T02:08:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817463.60/warc/CC-MAIN-20240419234422-20240420024422-00533.warc.gz","language_score":0.9293369650840759,"token_count":658,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__52259846","lang":"en","text":"A nantenna is an electromagnetic collector designed to absorb specific wavelengths that are proportional to the size of the nantenna. Currently, Idaho National Laboratories has designed a nantenna to absorb wavelengths in the range of 3-15 μm. Since around 85% of the solar radiation spectrum contains light with shorter than infra-red wavelengths, in the range 0.4-1.6 μm it would be ideal to make nantennas of these dimensions to harvest more energy than is possible with PV. Nantennas work in practically the same way as rectifying antennas: namely that Incident light drags electrons in the antenna material back and forth at the same frequency as the incoming light, in consequence of the oscillating electric field component of the electromagnetic light wave. The refractive index of a material has a similar origin.\nThe oscillating electrons generate an alternating current (AC) in the antenna circuit, which must be rectified to convert it into DC power usually with a diode device of some kind, and the DC current can then be used to power an external load. Since the wavelengths in the solar spectrum lie in the approximate range 0.3-2.0 μm, a rectifying antenna needs to be on the order of hundreds of nm in size to provide an efficient energy collector. Since the oscillating (AC) frequency from the nantenna array is around 10 THz, converting it to the 50-60Hz power that the world uses poses a challenge in terms of using the technology to generate real usable power. The main problem with rectifying diodes is that they have a finite recovery time which limits their operating frequency. Commercially available ultrafast diodes presently have an upper limit of the order of several GHz, and so they need to be made to work faster. This seems to be the principal hurdle to the success of generating electricity using nantenna.\nThere have been many affirmations to the effect that the theoretical efficiency of nantennas is > 85%, which in comparison with the theoretical efficiency of single junction solar cells (30%) looks very impressive. There is some ambiguity over this, however, depending on exactly how the efficiencies are calculated for the two kinds of device.\nThe most obvious advantage of nantennas over semiconductor photovoltaics is that the nantenna arrays can be scaled to absorb any frequency of light. Since resonance frequency is in direct proportion to the size of the antenna, the array may be tuned by simply varying the size of the nantenna in the array to absorb specific light wavelengths. In the case of PV the frequency of absorbed light depends almost entirely on the band gap energy, and so the semiconductor material must be changed to vary the latter. Indeed, this aspect of dimensional engineering is in some ways reminiscent of nanotube and quantum dot devices. Although the latter work in quite different ways the point is made that it is not only the chemical composition of the material but the size of its assembly that provides a tuning to the absorption of light that is possible by a device.","domain":"optical_engineering"}
{"url":"https://www.preventelderabuse.org/astrophotography-telescope-under-1000/","date":"2022-06-25T22:57:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103036176.7/warc/CC-MAIN-20220625220543-20220626010543-00469.warc.gz","language_score":0.8777439594268799,"token_count":7463,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__274894038","lang":"en","text":"But they all are not.\nIt becomes challenging to choose the best astrophotography telescope under 1000 as there are so many options available and many companies produce fake reviews.\nWe all have our own needs and requirements for a product, whatever specification and features it offers. We never want to buy an overrated product that will not provide us with its actual benefits. Are you facing any difficulties to pick up the right brands and product models for you? Then, read this article. We are going to share our research experience and list down some of the top astrophotography telescope under 1000 and related items in this post.\nThis buying guide will definitely help you.\nList of Best astrophotography telescope under 1000: Tested by Consumers\nSVBONY T2 T Ring Adapter and T Adapter, 1.25 inches Metal Telescope Camera Adapter for Canon EOS Standard EF Lenses and Telescope Camera Astrophotography Accessories\n- Perfect for Canon EOS and Rebel SLR and DSLR Cameras;Note: it doesn't fit for EOS-M models;connect camera to telescope for direct;prime focus; photography convenient and easily\n- Super easy to use;thread t adapter into t ring adapter;then thread the whole mount adapter into cameras to connect to telescope\n- Universal t adapter fits all standard 1.25\" diameter telescope microscope etc;t ring adapter is compatible for all standard 1.25\" lenses of cameras;but not for SV13 spotting scope\n- High quality metal materials and tight;non binding fit;solid and durable for long term use\n- Manual focusing;some short-focus camera or telescope's optical tube may not be able to focus quickly;so it's great for you use an additional extension tube\nAstromania 1.25\" Extendable Camera Adapter - for Either Prime-Focus Or Eyepiece-Projection Astrophotography with Refractors or Reflector Telescopes - Threaded for Standard 1.25inch Astronomy Filters\n- Zoom projection and focal adapter: The simple way to astrophotography begins with this projection adapter. Use your standard Ploessl or Kellner 1.25-inch eyepieces for beautiful photos of the Moon and planets.\n- This easy to use 1.25\" Variable Universal Camera Adapter is designed to attach both camera body and telescope together. Compatible for both reflector and refractor telescopes with 1.25\" eyepiece holders. Dual design allows the user to make slight magnification adjustments without having to change telescope eyepieces.\n- The 1.25\" Variable Universal Camera Adapter is made of black-anodized aluminum, threaded for Standard 1.25inch Astronomy Filters. Projection adapter for 1.25-inch eyepieces of up to 38mm outside diameter, also can be used as a focal adapter with a T2 thread.\n- Two adapters in one: The projection and focal adapter consists of two parts - the projection part and the focal adapter. The projection part is used with an eyepiece for achieving a long focal length with small objects, e.g. for individual craters. Use the focal adapter without the use of an eyepiece so employing the focal length of your telescope - for taking photos of the entire Moon, gas nebula or galaxy.\n- Zooming into the night sky: Use the sliding rear part of the adapter to zoom - pull out to magnify the image - without needing to change your eyepiece. Connect this adapter to each telescope with a 1.25\" eyepiece connection. You can use an eyepiece of any focal length - and you can achieve high-magnification images of lunar craters and planets. All you need is a T2 ring (Not Include) and a suitable camera with a bayonet connector.\nSVBONY SV205 Telescope Camera, 8MP USB3.0 Electronic Eyepiece, 1.25 Inches Astronomy Camera for Telescope Astrophotography\n- Plug and play without driver;real-time dynamic observation by crystal clear image;the image sensor uses dark light compensation technology to greatly improve the camera's image clarity in low light conditions\n- In MJPG video format;you can record video quickly and the frame rate up to 30FPS at 2K resolution 1920x1080; You can also choose YUV uncompressed video format;the speed will be 15FPS per second at 3264*2448 resolution\n- SV205 camera allows you to capture a real-time video and transport to your laptop or PC; Share the view of bright planets; the Moon; and terrestrial targets through your computer with friends; family; and fellow astronomy enthusiasts\n- This camera uses a 8M Pixel IMX179 imaging sensor with 1.4µmx1.4µm pixel size; this telescope camera uses an extremely sensitive 1/3.2\" CMOS Color Image Sensor; the image is clear and the image quality is good\n- The rewarding hobby of astrophotography;Great for lunar and planetary shots; machined aluminum 1.25\" adapter barrel for direct threaded connection to almost any telescope\nSVBONY Telescope Filter 1.25 inches UHC Filter Astrophotography to Improve The Image Contrast Reduces Light Pollution (1.25 inch)\n- UHC filters or light pollution reduction filters are designed to selectively reduce the transmission of certain wavelengths of light;especially those produced by artificial light\n- Sky background is darker;and contrast of emission nebulae are noticeably improved;the perfect filter for viewing nebula from light polluted skies;or for boosting the contrast of nebula from dark sky sites\n- Due to its ability to produce exceptionally sharp and clear images;this UHC filter is considered one of the most popular astronomy accessories;it can be used not only for celestial observations but also for astrophotography\n- 1.25'' barrel diameter simply attach to eyepiece cased in a sturdy transparent case;standard filter thread for 1.25\" eyepieces and other accessories\n- Optical glass lens;aluminum frame;significantly reduces light pollution;great for city and suburban observation\nT2 T Ring Adapter and T Adapter 1.25'' Metal for All Canon EOS Standard EF Lenses and Telescope Camera Astrophotography Accessories\n- Compatible with Camera EOS 5D, 5D Mark II, 50D, 60D, 20D, 30D, 40D, 350D, 400D, 450D, 500D, 550D, 600D, 1100D, 1D, 1D MkIII, Digital Rebel T4i, T3i, T2i, T1i, Xt, Xti, XSi, XS, and all EOS SLR Cameras\n- Useful accessories allows you to attach your Canon Eos SLR Camera to the standard 1.25inch eyepiece diameter Telescope\n- Brand new CANON EOS Camera adapter for Telescope with standard 1.25inch Eyepiece Ports\n- CNC Metal Construction-Made of machined, anodized aluminum\n- Whole Lifetime Warranty-7/24 Technique Support\nTelescope retro hexagon astro photographer astrophotography T-Shirt\n- Always waiting for a clear night sky to grab your astrophotography telescope and astrophotography camera and start taking incredible pictures? Then this design is for you - a must have addition to your astrophotography accessories.\n- Great For the hobbyist photographer and the professional Astrophotographer, for the lover of stars, space and galaxies. For the lovers of celestial and astronomical objects, shooting stars and planets - the space lovers out there.\n- Lightweight, Classic fit, Double-needle sleeve and bottom hem\nSVBONY SV48P Telescope, 90mm Aperture F5.5 Refractor OTA for Adults Beginners, Telescopes for Deep Sky Astrophotography and Visual Astronomy\n- 90 mm aperture; 500mm focal length; compared with 70mm and 80mm; 90mm telescope has more light input and a wider field of view; observe the moon and deep space; which is very suitable for astronomy beginners\n- Double speed focuser; the 2 inches rotatable double speed focuser; gear ratio of 1:10; precise adjustability for smooth operation\n- The focusing mount with metal interface has higher interface accuracy; guarantees the parallelism of the optical axis; and enhances the observation experience\n- Fully multil green coated lens; fitted with achromatic glass for good edge-to-edge viewing; fully multi green coated lens maximize light transmission eliminating false color\n- 360 degrees rotation; convenient for photographic composition and visual observation; loosen the screw; the focus can be rotated 360 degrees; you can achieve astronomical shooting\nSVBONY Telescope Filter UV IR Cut Block Filter Infra Red Filter CCD Camera for Astrophotography Telescope UV Filter 2 inch Threads for DSLR Camera\n- The UV-IR-Cut filter uses the very latest coating technology; to deliver the finest filtration qualit-and lifetime durability used to cut off filter blocks undesirable ultraviolet and infrared rays that may interfere with obtaining the high contrast and high quality images possible with a digital sensor\n- True optical quality glass substrate and coatings;to deliver the sharpest images possible;can achieves greater detail;less chromatic aberration;more natural colors and finer color gradation\n- Very low reflection multi-coating; Striate-free; and plane-parallel substrate; It serves as a permanent lens protector;digital imaging with DSLR cameras;CCD cameras;and modified WebCams;or telescope\n- Standard 2inch Filter threads for 2\" eyepieces and other accessories;combine with any standard 2” filter threads for 2\" eyepieces and other accessories to deliver the sharpest images possible;reducing ghost images caused by IR radiation\n- Comes with a plastic box to keep it safe and clean when not in use\nT2 T Ring Adapter and T Adapter 1.25 inches Metal Telescope Camera Adapter for Canon EOS Standard Telescope for Astrophotography Accessory for Astronomy\n- Perfect for Canon camera EOS, SLR/DSLR Cameras; it doesn't fit for EOS-M models; connect digital camera to telescope for Astrophotography;prime focus\n- Easy to use;thread t adapter into t ring adapter;then thread the whole mount adapter into cameras to connect to telescope;1.25\" thread allows filters to be added to the end which is very useful especially for very light polluted areas\n- Universal t adapter fits all standard 1.25\" diameter telescope microscope etc;t ring adapter is compatible for all standard 1.25\" lenses of cameras\n- The entire piece is made from metal, it's only 0.26lb and anodizing aluminium process CNC Metal Construction\n- Both the adaptor are universal M42x0.75mm；added focal length from the Barlow\nSVBONY SV116 Guiding Scope Ring Kit for Telescope Tube Diameter or Finders 43mm to 70mm with Pair Ideal for astrophotography\n- Two tube rings made of metal;the guide scope rings are suitable for small and medium-sized guiding telescopes;70mm compact deluxe finder guidescope kit;ideal for astrophotography for mounting a guide scope parallel to the main telescope\n- The mounting bar has two M6 through-holes on both sides for easy adaption to rings. and three threaded through-holes;the center hole has 1/4\"-20 threads and the two larger holes on either side of center have M8 x 1.25 threads\n- Solid metal guide scope rings for compact finderscope or guidescope with knurled metal screws. big screws with maximum grip allow easy use - even with gloves\n- The adjustment crews have teflon inlays for avoiding unaesthetic scratches and pressure marks on the telescope while still ensuring reliable clamping\n- The inner diameter of the tube rings is 70 mm for telescopes between 43 to 70mm tube diameter can be mounted adjustable\nSVBONY SV112 Telescope Camera Adapter Kit for Canon EOS Rebel SLR DSLR Prime Focus and 1.25 inches Variable Projection Eyepiece Astrophotography\n- Designed for Canon EOS & Rebel SLR & DSLR Cameras and Photography;Note:it doesn't fit for EOS-M models;connect camera to telescope for direct prime focus photography convenient and easily\n- The camera adapter kit for prime focus;in this imaging method the camera is connected directly to the telescope and placed at the \"prime\" focus of the telescope;the telescope becomes the camera lens. no eyepiece is used in this method;this method provides the widest possible field of view, the shortest possible exposure time and moderate magnification;typically used for imaging nebulae; galaxies and other large (but dim) deep sky objects\n- The camera adapter kit for eyepiece projection;in this imaging method an eyepiece is used to increase magnification;the eyepiece is placed between the camera and the telescope;the eyepiece “projects” the image onto the camera sensor;the projected image size increases with distance;similar to a flashlights beam\n- Fits telescopes with a standard 1.25\" eyepiece port;the adapter can hold eyepieces up to 42mm in upper body diameter; it also features a laser engraved extension scale for recordability and repeatability as well as a large machined grip ring;for a sure grip in even the worst dew conditions\n- The variable feature lets you adjust the adapter length to vary the magnification (thus image size) for perfect framing of your shots; fits telescopes with a standard 1.25\" eyepiece port.the 1.25\" barrel is threaded to accept standard 1.25\" eyepiece filters\nLUXUN Telescope for Adult Astronomy Professional Beginner Kid 5-7 8-12 Refractor Telescope Super Telephoto Space Astrophotography Telescope for Viewing Planets High Powered Powerful Telescope\n- 🥇16-120X Magnification - Two replaceable eyepieces(10mm, 25mm). The magnification of the 10mm eyepiece is 40X, 25mm eyepiece is 16X. With a 3X Barlow lens, the magnification can be increased from 16X to 200X. 5X24 finder scope with mounting bracket can easily help you to find the observation target. 48° zenith mirror offer you more comfortable and free observation than other inverted diagonal\n- 🥇Professional Optics - The LUXUN 400mm(f/5.7) focal length and 70mm aperture, fully coated optics glass lens with high transmission coatings creates stunning images and protect your eyes. Perfect telescope for astronomers to explore the Moon.\n- 🥇Easy Assemble - No tools are required for refractor telescope even for the astronomical beginner. Adjusted from about 24 inch to 50 inch. Allowed for many different observational positions and keep the whole tripod steady with castor wheel.\n- 🥇Extra Bonus - Free includes one universal smart phone adapter mount holder and one Wireless camera remote controller to explore the nature of the world easily through the screen and take amazing celestial images.\n- 🥇Lightweight 4.4LBS - A extendable aluminum tripod stand is very easy to carry in a canvas duffle bag and it is ideal for a broader range of long-distance travelling,you can observe target in the day and observe celestial bodies and terrestrial objects at night.\nSVBONY SV503 Telescope 80ED F7 Telescope OTA Focal Length 560mm for Exceptional Viewing and Astrophotography\n- Extra-low Dispersion glass; SV503 Telescope OTA is designed with ED glass; will give you the crystal clear image;SV503 80ED telescope produces an especially colour true and high contrast image; just right for more discerning observers\n- Dual-speed rack and pinion focuser;The gear ratio of the dual speed 2-inch toothed focuser is 1: 10; which makes it easy to achieve accurate focus\n- Top-quality Material; The appearance of the SV503 OTA is baked with high-end fine-grained paint; with exquisite appearance and delicate feel;all machined by CNC\n- all optical surfaces multi-coated; The whole optical lens adopts the technology of ultra-wideband multilayer coating; 80mm aperture; fully multi-coated ED optics deliver outstanding views; day or night\n- Areas of application; 80mm F7 astronomy telescope SV503 would be better begin for astronomy amateurs to do astrophotography\nAstromania C Mount to 1.25\" Video Camera Barrel Adapter Telescope Astrophotography\n- The telescope adapter has a diameter of 1.25 inches for insertion in place of a 1.25 inch telescope eyepiece, allows the camera to be put into standard 1.25\" eyepiece holders.\n- The opposite end of this adapter has a C-Mount (1 inch diameter with 32 threads per inch) standard for all \"C\"inama photography movie cameras.\n- For a 1.25\" adapter to use C or CS mount CCTV type cameras with telescopes,threaded to accept standard 1.25\" filters.\n- For one high quality C-mount (male thread) to 1.25\" (fit any telescope with 1.25\" eyepiece tube) eyepiece convertor for telescopes.\n- Watch the moon or even local scenery from your living room HDTV with a C-Mount Video Cam or any device with a VGA socket. The inside of the adapter is fully threaded to minimize reflections,made of black anodized aluminum.\nSVBONY SV305 Pro Telescope Camera, 2MP USB3.0 Astronomy Camera, 1.25inch Astronomy Guiding Camera, Telescope Eyepieces for Astrophotography\n- ST4 Guiding;SV305 Pro camera is designed with ST4 guiding port; Supporting the PHD2 software; and works with ASCOM plate form\n- 1ms to 30min long exposure; Long exposure can reach 30 minutes;You can use it for planetary imaging; lunar and solar imaging and some bright deep space objects imaging\n- Back-illuminated CMOS Sensor;The SV305 Pro uses an extremely sensitive IMX290 CMOS sensor; This sensor has very high QE and very low 0.7e- read noise; which improved sensitivity in the visible-light and near infrared light regions for industrial applications\n- 128MB DDR Buffer;This buffer also allows a slower computer with USB 3.0 socket to capture every frame without loss even if the USB socket is occasionally busy with other peripherals; This buffer also makes it possible to run multiple cameras using one computer without USB transfer problems\n- Any Area ROI Support; A smaller region of interest ROI is read out from the sensor; leaving the image scale of the object being imaged; unchanged; Allow arbitrary resolutions to be set\nAlstar 1.25\" Astrophotography Flip Mirror with Eyepiece Adapter - The flip Mirror for Precise Focusing\n- An object that is accurately centred in the eyepiece will be simultaneously centred in the camera's field of view. You no longer have to worry about whether the object is correctly positioned on the chip - you know it will be.\n- For precise focusing: In astrophotography, if you want to take successful astronomy photographs, accurate focusing is only one half of the story. The Alstar flip mirror makes it very simple to find both the exact focus point and also the correct positioning for your astronomy photographs. This small black box has a moveable flip mirror which shunts the light path 90°upwards or, alternatively, lets it pass through unhindered.\n- Always sharp: If you tilt the mirror to the 45° position, the object will then appear in the eyepiece and you will be able to precisely focus it as usual. The helical focuser on the flip mirror lets you make the eyepiece and camera exactly parfocal with each other. This means that both elements will be in focus at the same time.\n- Connectability: The Alstar flip mirror has a 1.25\" connector which will fit onto any standard telescope. The helical focuser will accept any standard 1.25\" eyepiece. There is a T-2 thread provided on the camera side - the standard fitting for all cameras.\n- An advantage with all cameras: No finder is provided with popular webcams or astronomical CCD cameras for helping position the object on the chip. Only by taking test exposures is it possible to achieve both sharp focus and the correct object position. The flip mirror is a big help here as the object has already been centred and focused 'remotely' on the chip via the eyepiece.\nSVBONY SV164 Telescope Filter Dark Frame Imaging Filter 2 Inch for Astrophotography Astronomy Filters for Eliminate Camera Noise and Hot Pixels\n- Quickly capture dark frames to optimize photo quality; SV164 filter blocks all light from imaging camera sensors; help remedy camera noise and hot pixels; especially to ensure high-quality pictures in astrophotography\n- 2 inch standard filter; SV164 dark frame imagin filter size is 2 inches; you can freely match all your equipment that accept standard 2 inch filter\n- High-quality filter; SV164 dark frame imagin filter is made of metal; with black anodizing process on the outside; durable; no need to worry about fading and discoloration\n- High-quality packaging box; the enclosed foam-lined plastic box secures the dark frame imaging filter during transportation and storage\n- Various combinations; for example; the thread of the SV164 dark frame imagin filter can be directly connected to the filter wheel; Allows you to quickly switch between different filters; very convenient\nSVBONY C Mount to 1.25 inches Video Camera Barrel Adapter Telescope Astrophotography Connect Standard 1.25 inches Filter Threads\n- One side standard 1.25\" barrel;fits 1.25\" telescope focuser or other accessories\n- For one high quality c-mount (male thread) to 1.25\" (fit any telescope with 1.25\" eyepiece tube) eyepiece convertor for telescopes\n- See the moon or even local scenery from your living room hdtv with a c-mount video cam or any device with a vga socket;the inside of the adapter is fully threaded to minimize reflections;made of black anodized aluminum\n- Threaded for standard 1.25\" eyepiece filters;allows you use an astro filter for better imaging experience\n- The telescope adapter has a diameter of 1.25 inches for insertion in place of a 1.25 inch telescope eyepiece;allows the camera to be put into standard 1.25\" eyepiece holders\nSky-Watcher EvoStar 72 APO Doublet Refractor – Compact and Portable Optical Tube for Affordable Astrophotography and Visual Astronomy (S11180)\n- EXPERTLY MATCHED GLASS: The EvoStar series features a matched doublet objective including one synthetic fluorite element, providing excellent color correction for visual and photographic uses.\n- OUTSTANDING COLOR CORRECTION: Using the finest quality glass and proprietary Metallic High-Transmission Coatings (MHTC), EvoStar refractors produce tack sharp images with accurate color and minimal aberrations.\n- PORTABLE TRAVEL SIZE: Using a compact design, this refractor is easy to transport and lightweight to support, making it the perfect travel companion.\n- EVOLVES WITH SKILL: No need to replace this telescope as your skill set evolves. Whether you’re a seasoned astrophotographer or a budding novice, EvoStar refractors are versatile enough to use as your primary optical tube as your skill set improves.\n- 10:1 DUAL-SPEED FOCUSER: No matter the eyepiece or camera, finding focus is a breeze with this 10:1 dual-speed Crayford-style focuser.\nTelescopes A to Z - FREE\n- Achromatic versus Apochromatic Lenses in Telescopes\n- Basic Tips for Using Telescopes\n- Creating Your Own Telescope\n- Different Types of Telescopes\n1. SVBONY SV205 Telescope Camera, 8MP USB3.0 Electronic Eyepiece, 1.25 Inches Astronomy Camera for Telescope Astrophotography\n- Plug and play without driver;real-time dynamic observation by crystal clear image;the image sensor uses dark light compensation technology to greatly improve the camera’s image clarity in low light conditions\n- In MJPG video format;you can record video quickly and the frame rate up to 30FPS at 2K resolution 1920×1080; You can also choose YUV uncompressed video format;the speed will be 15FPS per second at 3264*2448 resolution\n- SV205 camera allows you to capture a real-time video and transport to your laptop or PC; Share the view of bright planets; the Moon; and terrestrial targets through your computer with friends; family; and fellow astronomy enthusiasts\n- This camera uses a 8M Pixel IMX179 imaging sensor with 1.4µmx1.4µm pixel size; this telescope camera uses an extremely sensitive 1/3.2″ CMOS Color Image Sensor; the image is clear and the image quality is good\n- The rewarding hobby of astrophotography;Great for lunar and planetary shots; machined aluminum 1.25″ adapter barrel for direct threaded connection to almost any telescope\nAdditional Info :\nThere are many options out there. We checked and reviewed the 10 best astrophotography telescope under 1000 for seniors to help you find a suitable item for you.\nHow Do You Buy The Best astrophotography telescope under 1000?\n|#||Product Name||Popularity Score||Quality Score||Sentiment Score||Sales Volume|\n|1||SVBONY T2 T Ring Adapter and T Adapter, 1.25 inches Metal Telescope Camera Adapter for Canon EOS...||\n|2||Astromania 1.25\" Extendable Camera Adapter - for Either Prime-Focus Or Eyepiece-Projection...||\n|3||SVBONY SV205 Telescope Camera, 8MP USB3.0 Electronic Eyepiece, 1.25 Inches Astronomy Camera for...||\n|4||SVBONY Telescope Filter 1.25 inches UHC Filter Astrophotography to Improve The Image Contrast...||\n|5||T2 T Ring Adapter and T Adapter 1.25'' Metal for All Canon EOS Standard EF Lenses and Telescope...||\n|6||Telescope retro hexagon astro photographer astrophotography T-Shirt||\n|7||SVBONY SV48P Telescope, 90mm Aperture F5.5 Refractor OTA for Adults Beginners, Telescopes for Deep...||\n|8||SVBONY Telescope Filter UV IR Cut Block Filter Infra Red Filter CCD Camera for Astrophotography...||\n|9||T2 T Ring Adapter and T Adapter 1.25 inches Metal Telescope Camera Adapter for Canon EOS Standard...||\n|10||SVBONY SV116 Guiding Scope Ring Kit for Telescope Tube Diameter or Finders 43mm to 70mm with Pair...||\nOn paper, any products made should be suitable for use by all people, but in most cases, the most important functions are hidden behind procedures that become insane. It is true that with almost all astrophotography telescope under 1000 we reviewed here are manufactured for adult, but very few do it in such a way that an elderly person can start them without having to ask how to do it.\nSo if you are looking for specific products for you or your loved ones, here are a series of recommendations that you should take into account\n- Brand Value: When you are out to purchase a new astrophotography telescope under 1000 or any other product, brand value is one of the factors that you should consider. When it comes to buying a branded item you want to be sure that the brand value of the company is enough to stand behind its product.\n- Features: Be sure to check out the features in-depth. This will ensure your purchase is completely satisfying. When it comes to finding the best options, features are the key choice factor.\n- Specifications: Not all specifications are created equal. The specification you need to build your cabinets will differ from that of a deck or re-insulating your attic. Check the product above for a range of specifications they offer, and choose the appropriate one for your requirements.\n- Product Value: This simply is how much bang for the buck you get from your astrophotography telescope under 1000.\n- Customer Ratings: Number rating grade astrophotography telescope under 1000 objectively.\n- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their astrophotography telescope under 1000.\n- Product Quality: You don’t always get what you pay for with an astrophotography telescope under 1000, sometimes less, and sometimes more.\n- Product Reliability: How sturdy and durable an astrophotography telescope under 1000 is should be an indication of how long it will work out for you.\nPreventelderabuse.org always remembers that maintaining astrophotography telescope under 1000 information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.\nIf you think that anything we present here regarding astrophotography telescope under 1000 is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!\nIt is important that the astrophotography telescope under 1000 is not too expensive, or that it does not cost much to repair in the event of a breakdown or accident. As always, there are huge options, and depending on the idea we have, we will decide to invest more or less. Anyway, in this segment, you have some really interesting astrophotography telescope under 1000 for an emergency that is overpriced, as well as other more expensive ones that you probably don’t care about because most of the extra features are not going to be used.\nSize and Style\nConsider where you plan on storing your astrophotography telescope under 1000. Traditional astrophotography telescope under 1000 are usually designed to be smaller so that they take up less space. However, some astrophotography telescope under 1000 models can be reconfigured into built-in models that fit in a cabinet. Keep in mind that built-in models usually require separate trim kit purchases.\nEase of Use\nNo one wants a cumbersome astrophotography telescope under 1000 that’s a pain to use. But for seniors, the concern becomes whether a astrophotography telescope under 1000 is supporting your quality of life or if it makes using more difficult. Look for a user-friendly astrophotography telescope under 1000 that makes life easier. Look for larger buttons or labels that make it easier to use if you have a vision impairment. Prioritize simple controls as well. Consider whether you can easily move it, how easily you can grip the door if it’s easy to clean, and how you can interact with the product. And especially if you pick an over-the-range model, make sure that it’s positioned at a height that you can reach easily.\nFor seniors, the controls and how easily they can open and close a astrophotography telescope under 1000 box are going to be some of the most important features to consider. You’ll need to find a model that’s compatible with your strength and mental acuity. Not all seniors should downgrade to the simplest astrophotography telescope under 1000 with basic functionality.\nWhy should you buy astrophotography telescope under 1000?\nIf you or an older loved one in your life need a little extra assistance hearing your favorite program, a decent pair of TV headphones will do the job. The astrophotography telescope under 1000 for seniors can create a hassle-free and comfortable sonic experience, especially for people with health issues. These astrophotography telescope under 1000 can be used for long periods without discomfort and will offer convenience.\nAre astrophotography telescope under 1000 Worth Buying?\nMany consumers take advantage of online shopping by completing the entire process from their home computers. This makes online shopping even easier for seniors, who are looking to upgrade their homes without the hassle of going to retail stores. Online shoppers also save money when they use discount codes and apply coupons to their purchases. Senior investors can also trade certificates of deposits, stocks, and mutual funds at discounted rates through online investors’ clubs.\nHow Long Will astrophotography telescope under 1000 Last?\nDo you have older parents or a spouse that needs help getting care when they’re alone? You can help them be safe and independent by looking into medical alert systems. The key is finding the right system for your loved one’s needs, which may require some investigating.\nHow long a astrophotography telescope under 1000 for aged people will last depends on several factors, like its quality, maintenance, and use. The product life of astrophotography telescope under 1000 changes significantly based on the type of materials and components used on it.\nHow long will stay in your home last? The answer is partly up to you, and what steps you take to make your home safer for aging in place. Adaptive products and safety devices can help one age in their own home for years to come.\nWhy should I buy a astrophotography telescope under 1000 from here?\nThese astrophotography telescope under 1000 are researched by our experts and customers who bought them. So there is no chance of purchasing the wrong product, which will spoil your money and time. You also don’t need to do any research, spend hours doing this, and risk buying the wrong product that may not work for you or may not be as per your expectations.\nWe handle all these things, and we just present you with the best astrophotography telescope under 1000 option based on our expert opinions and customer reviews. We also update our list regularly, so you don’t need to worry that these may not be the latest versions available or they may not be available in your country.\nWhat to look for when buying a astrophotography telescope under 1000 ?\nThere are things you need to look for when buying a astrophotography telescope under 1000 . The first thing is to determine if the product fits your needs. The second thing is to look at the quality of the product. When buying a astrophotography telescope under 1000 you should also look for how much it costs. You should always consider whether or not the price of an item is worth the quality of that item. The last thing you want to make sure that any new product you purchase will last a long time. This means looking for warranties and guarantees.\nMost companies do not offer warranties or guarantees on new products, but some do. You want to read about the latest products you are purchasing and find out if any guarantees or warranties are available. It’s always best to buy something with a warranty because this gives you peace of mind that your purchase will last a long time.","domain":"optical_engineering"}
{"url":"https://bezmialemhastanesi.com/en/Pages/NewsDetail.aspx?newsId=16&newsdetail=Smart-Lens-Warning-to-Eye-Patients","date":"2023-05-31T09:41:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646457.49/warc/CC-MAIN-20230531090221-20230531120221-00057.warc.gz","language_score":0.9327216744422913,"token_count":701,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__237355800","lang":"en","text":"Ophthalmology Specialist Prof. Arif Koytak explained the drawbacks of marketing the so-called \"smart lens\" and surgically placed lenses in the eye as an ordinary cosmetic product and warned the patients.\nBezmialem Vakıf University Department of Ophthalmology Faculty Member Prof. Arif Koytak stated, “The 'multifocal intraocular lens', introduced as a smart lens, is a current model of the artificial lenses we have placed in the eye in cataract surgeries since the 1970s. Difference of multifocal lenses from standard (single vision) lenses; It is the claim of providing glasses-free vision not only at a long distance, but also at close and intermediate distances. However, a multifocal lens design has not yet been achieved, with the quality of vision capable of capturing the quality of vision provided by standard lenses or successfully imitating our natural lens. Some health institutions and physicians may view multifocal lenses as a product to be marketed and endanger the eye health of the society.\nA physician should evaluate the patient and the patient should evaluate the treatment option correctly.\n\"Multifocal lenses should be recommended after a detailed patient evaluation, considering the current and future health problems of the patient, evaluating the lifestyle and expectations of the person, and most importantly, after the patient has been adequately informed about all positive and negative aspects of the procedure,\" said Prof. Arif Koytak and underlined the points to be considered about the smart lens:\n• For multifocal (multifocal) intraocular lenses and glasses-free distance, close and intermediate vision, the person will have to sacrifice the quality of vision at varying rates. Some models have better near, some far, some intermediate range results.\n• Disturbing light flickers, which we call dysphotopsia, are observed at varying rates in almost all patients in whom these lenses are used, and patients should be warned about these possible complaints in advance.\n• Multifocal lenses impair contrast sensitivity and vision in low light more than standard lenses.\n• People with occupations that require sensitive and detailed vision should stay away from multifocal lenses due to the above-mentioned side effects.\n• These lenses should not be applied to young patients without any eye problems, just for the promise of relief from glasses.\n• Multifocal lenses should not be applied to people who have eye problems other than cataracts, especially retinal diseases such as macular degeneration and diabetic retinopathy. These adversely affect the quality of vision of people with retinal disease.\n• Placing multifocal lenses in the eye is a surgical procedure and this surgery has its own risks and complications.\nProf. Arif Koytak stated, “Undoubtedly, great developments have been made in the field of multifocal lenses over the years. Thanks to the developments in both lens design and surgical technique, significant reductions in the rates of side effects and complications, and serious improvements in visual comfort were recorded. It has reached a point where it promises a significant improvement in quality of life for many cases, provided that the patient and model selection is made correctly and the patient is adequately informed about realistic expectations, benefits and risks.\"\n“There is no smart lens. There is a smart patient who can choose the most suitable lens for them based on the recommendations of a doctor whose experience and honesty they can trust, regardless of any advertisements.","domain":"optical_engineering"}
{"url":"https://lateshacha.jimdofree.com/2018/08/31/pendant-led-light-turn-your-space-into-a-modern-style/","date":"2019-09-16T15:06:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572744.7/warc/CC-MAIN-20190916135948-20190916161948-00067.warc.gz","language_score":0.9667574763298035,"token_count":665,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__73008250","lang":"en","text":"Prior to talking about what LED straight illumination is, individuals should recognize exactly what an LED light is. LED mean light releasing diode. LED illumination is among the top lighting options in the whole globe. With the ever before increasing demand for sustainable techniques of using power, LED lights, which utilized to be exceptionally costly when, are now rather affordable.\nNot just are they budget friendly, there are many different options, types as well as designs of LED lighting available nowadays! LED yard lighting, LED headlights, LED street lights, LED panel lights and now LED direct lights.\nYou may ask exactly how LED illumination is much lasting compared to various other lighting such as halogen light bulbs? The answer is that LED lighting makes use of less the amount of energy as a halogen bulb. However it produces two times the quantity of intense as well as white light. Plus, unlike halogen light bulbs, LED illumination is very long-term. It can last for 5-10 years or even more. Several LED lights models even have actually motion sensing units affixed in them which makes LED lighting much more efficient. The motion sensing unit transforms the light on if it finds motion. It lowers and also switches off when there is no movement detected. LED direct lights is no much less.\nWhat Is LED Linear Lighting\nLED linear illumination is basically a lot or group of light giving off diodes packed in one lengthy strip. This type of LED lighting assists brighten long areas such as offices, storehouses, manufacturing facilities, and so on. It supplies brilliant light which is directed to every nook and also cranny to make sure that everything shows up appropriately. You could visualize LED straight lights as fluorescent tubes, only that LED linear illumination is two times as long as the florescent tubes.\nWhy Do People Choose LED Linear Lighting?\nAesthetic appeals. LED linear lighting is very smooth and also appealing looking. If looks are necessary for you and you desire your house to look extremely modern and also neat, LED direct lights is the means to go. Not just do they illuminate the area adequately, there are tailor made layouts of LED direct lighting. All which are developed to fit your requirements and match the visual appeals on your house.\nLED direct lighting constantly brighten the entire room even if it is put in one specific spot. This is due to the fact that LED straight lights has directional light. Not just does it offer light to various surfaces. It also provides the most sufficient illumination at just one spot where it is placed.\nLED direct lighting has various colour temperature levels. From stark white as well as intense light to a warm white light, you could change the strength. You can additionally pick LED linear lights according to the different colour temperatures to the majority of fit the location where you want it set up.\nLED direct lights is expense and also power effective. It makes use of the least quantity of energy to illuminate as well as create intense light. Given that it makes use of much less energy, that implies much less electrical energy and utility bills. The reduction in the electrical power costs are even essentially visible.\nSelect LED Linear Lighting as well as save money, energy as well as make your house look modern and also streamlined.\nHere's more info regarding LED light solution visit the web-site.","domain":"optical_engineering"}
{"url":"https://www.frontendaudio.com/alva-optical-cable-6-foot/","date":"2020-01-23T04:46:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250608295.52/warc/CC-MAIN-20200123041345-20200123070345-00125.warc.gz","language_score":0.7441691160202026,"token_count":170,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__176151523","lang":"en","text":"Alva Optical Cable\nThe Alva Optical TOSLINK cable is a professional quality lightpipe solution for ADAT or SPDIF format\nThe ALVA Optical Cable, Professional, Toslink (ADAT or SPDIF) is a part of the ALVA range - a collection of durable audio products built to the highest standards.\nBuilt with metal connector shells and a durable jacket around the optical fibres, the ALVA Optical TOSLINK cable will last a lifetime of use.\nAlva Optical Cable Features\n- Professional high quality, metal-shell plugs\n- Available Lengths:\nAlva Optical Cable Specifications\n- Cable Color: black\n- Cable Ø: 5 mm\nAlva Optical Cable Includes\n- 2 Meter Alva Optical TOSLINK Cable\nNo review yet, Be first to Write a Review","domain":"optical_engineering"}
{"url":"http://www.velodynelidar.com/news.php","date":"2018-03-17T04:37:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257644271.19/warc/CC-MAIN-20180317035630-20180317055630-00327.warc.gz","language_score":0.9483187198638916,"token_count":115,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__20409348","lang":"en","text":"2018 CES Day 2 Round-up: Heavy-Duty Trucks, LiDAR Sensors and Smart Cities\nby Trucks.com (Jan 10, 2018)\nVelodyne: The leader in LiDAR sensors that enable automated features and autonomous driving when affixed to cars and trucks, Velodyne LiDAR unveiled new technology at CES on Tuesday. The company showed its VLS-128 system which features a wider field of vision and improved resolution. It also showed the compact Velarray which embeds more discretely into the vehicle's body.","domain":"optical_engineering"}
{"url":"http://www.bearbasin.com/meopta-meostar-tactical-1-4x22.htm","date":"2017-06-25T05:20:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320438.53/warc/CC-MAIN-20170625050430-20170625070430-00033.warc.gz","language_score":0.8367255330085754,"token_count":917,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__194884307","lang":"en","text":"Premium Quality Optics...Great Prices...Expert Customer Service\nMeopta MeoStar CQ Tactical K-Dot Rifle Scope\nFree UPS Ground Shipping On Orders Over $199\nFREE EXPRESS SHIPPING ON ORDERS OVER $899 !\nYour Satisfaction Is Guaranteed\nMeoStar 1-4X 22mm CQ Tactical Scope\nCompact, rugged and ready for action. The new ZD 1-4X 22 RD is the next generation of Meopta's increasing line of tactical optical solutions. Meopta took the popular MeoStar R1 1-4X 22 RD, looked at it from the point of view of their serious tactical shooters and developed a scope perfect for AR platforms. The new ballistic K-Dot reticle and shortened main tube are distinctive features not to be missed. The Meopta MeoStar ZD 1-4X 22 combines the needs of aiming when shooting at short distances with a simple and quick setting focus to bigger distances. Clearly illuminated aiming mark is visible in all light conditions. Thanks to the collimator function at magnification 1X and illuminated red dot the scope is suitable for shooting with both eyes open, which is perfect for shooting on the move.\nUniversal rifle scope for shooting at short and medium distances\nTube made of special aluminum alloy\nSeven levels of illumination\nCan be used as a collimator\nSuitable for automatic fire arms\nExcellent light transmission\nDesigned for extreme conditions and tough demands\nRapid adjustment changes made possible by tri-cornered elevation and windage adjustment turrets.\nFeaturing true 1X magnification on the low end, with an incredibly wide 111 foot field of view, the 1-4X 22mm K-Dot is a perfect choice for dangerous game hunting applications. Due to the fact that the human eye does not need to adjust for a change in magnification from a normal sight picture when the scope is on X, the shooter's overall situational awareness is fully maximized, while target acquisition is lightning fast with both eyes open. This makes the 1-4X 22mm outstanding in quick, snap shooting situations. Meopta's Advanced Illumination Technology powers a 2 MOA dot at seven levels of intensity, with an off position between each level. This feature allows you to precisely adjust to ambient lighting conditions, as those conditions change, while eliminating the possibility of reticle flare in very low light conditions.\nTrue 1X magnification makes for lightning fast target acquisition and maximum situational awareness with both eyes open. Premium grade precision lenses are fully multi-coated with MeoBrite 550 Ion Assisted lens coatings for an industry leading 99.8% light transmission per lens. Precision Meotrack positive click-stop windage and elevation turrets are 1/2\" at 100 yards finger adjustable. Advanced Illumination Technology offers seven levels f intensity adjustment with an off position between each level. Fast focus eyepiece provides crisp imaging and precise reticle placement on your target.\n|Order#||Reticle||Finish||Magnification||Objective Diameter||Field of View @ 100 yds (ft)||Eye Relief (in)||Internal Adjustment Range MOA @ 100 yds||Click Value||Tube Diameter||Overall Length (in)||Weight (oz)||Price|\nWe're Also A Full Stocking Dealer For Tons of Different Binoculars, Spotters & Rangefinders!\n[HOME] [Binoculars] [Spotting Scopes] [Rangefinders] [Night Vision] [Ordering Information]\nWE WILL MEET OR BEAT ANY ADVERTISED PRICE FOR THE ABOVE ITEMS! click here for details\nPrices & Promotions Subject To Change Without Notice\nTelephone & Mail Order Hours: Mon. - Fri.\n7:00 AM - 6:00 PM Pacific Time\nShow Room Open Monday - Friday\n& 1/2 Day On Saturday\nSaturday: 8:00 AM - 2:00 PM, Closed Sunday\nTelephone Orders: 800-641-4470\nAll Other Questions & Outside The USA: 925-825-9803\nFax Orders: 925-825-9027\nShow Room Open Monday - Friday & 1/2 Day On Saturday\nQuestions, UPS Tracking and e-mail: Info@BearBasin.com\nTo Subscribe to Our Newsletter and e-mail Specials, Send Us a Note At: Newsletter@BearBasin.com","domain":"optical_engineering"}
{"url":"https://www.gifts.mobileyouth.org/product/todi-phone-camera-lens/?page&product=todi-phone-camera-lens&post_type=product&add_to_wishlist=3197","date":"2020-10-23T07:59:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107880878.30/warc/CC-MAIN-20201023073305-20201023103305-00308.warc.gz","language_score":0.943959653377533,"token_count":115,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__41279358","lang":"en","text":"TODI Phone camera Lens for iOS and Android\nThe TODI camera lens is capable of being equipped on the front and the back lens of your phone offering a lot more versatility than your average camera lens. Not only that but it is even capable of capturing images at an ultra-high definition resolution of 4K (3840 x 2160 pixels).\nThis sounds like a very professional and therefore expensive device but it is actually very affordable. Take your portable photography to the highest level and experience what true precision and clarity looks like from the comfort and convenience of your smartphone.","domain":"optical_engineering"}
{"url":"http://sinderellas-shrine.co.uk/2402283-a-light-within/","date":"2018-10-15T09:06:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583508988.18/warc/CC-MAIN-20181015080248-20181015101748-00459.warc.gz","language_score":0.8786243796348572,"token_count":460,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__167205809","lang":"en","text":"Light The Night Leukemia Lymphoma Society Light The Night walks are a celebration of light to drive out the darkness of cancer Find a fundraising event near you or donate online today Seattle City Light Rebates Our rebates help you upgrade to energy efficient products, saving you money and electricity for years to come Home Energy Audit The first step toward Light Reading Light Reading is for communications industry professionals who are developing and commercializing services and networks using technologies, standards and devices such as G, smartphones, SDN light English Spanish Dictionary WordReference light Translation to Spanish, pronunciation, and forum discussions QA Why Is Blue Light before Bedtime Bad for Sleep In the modern age of technology it is not uncommon to come home after a long day at work or school and blow off steam by reading an e book or watching television. Design Within Reach The Best in Modern Furniture and Design Within Reach offers the world s largest selection of authentic modern furniture, lighting and accessories from designers past and present Infrared Infrared radiation IR is electromagnetic radiation EMR with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye although IR at wavelengths up to nm from specially pulsed lasers can be seen by humans under certain conditions.It is sometimes called infrared light wavelengths extend from the nominal red edge of the visible spectrum Incandescent light bulb An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light incandescence.The filament is protected from oxidation with a glass or fused quartz bulb that is filled with inert gas or a vacuum In a halogen lamp, filament evaporation is slowed by a chemical process that Sacramento Regional Transit District Our love letter to you lower fares better service on buses and light rail. Terms and Definitions Solar System Glossary of space and planetary related terms A accretion Accumulation of dust and gas into larger bodies albedo Reflectivity of an object ratio of reflected light to incident light.\nFree Download [Classics Book] ↠ A Light Within - by Darlene Mindrup ↠ 268 Darlene Mindrup\nTitle: Free Download [Classics Book] ↠ A Light Within - by Darlene Mindrup ↠","domain":"optical_engineering"}
{"url":"http://www.rsmvision.com/products/lenses/","date":"2021-12-08T22:41:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363598.57/warc/CC-MAIN-20211208205849-20211208235849-00520.warc.gz","language_score":0.9511515498161316,"token_count":160,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__20261150","lang":"en","text":"Here at Dr. Andersen's, we are able to offer the highest quality lenses that give you maximum comfort and protection from harmful UV rays. Our partners at Carl Zeiss have been producing some of the worlds best lenses since the 1840s. They are famous for their attention to detail across all of their products. We are proud to offer their newest product- the Zeiss DriveSafe. This lens is optimal for driving at night as it reduces glare from oncoming headlights and bright streetlamps. In addition, the DriveSafe lens offers better visual contrast allowing for a more crisp clean image. This lens is available for both single and progressive lenses. Stop by today and ask about the Zeiss DriveSafe.\nZeiss Digital Lens\nZeiss Office Lenses","domain":"optical_engineering"}
{"url":"http://stadersand.dnshome.de/help/lang/en/help?image-general","date":"2023-06-02T04:09:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648322.84/warc/CC-MAIN-20230602040003-20230602070003-00715.warc.gz","language_score":0.8176190257072449,"token_count":842,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__70239208","lang":"en","text":"Open the General Image Settings dialog to define the basic settings for image control in the camera.\n|Camera Selection||Select the lens that you want see on the Live and Guest screens or set the picture-in-picture mode to combine the images of both lenses (only for dual-lens cameras).\n|Camera Night Switch (DY/NI)\n(only Day&Night Models)\nDay&Night camera models automatically switch between day and night lenses when the illumination falls below or exceeds the level set here. The higher the illumination value, the earlier the camera switches to the night lens.\nTo determine the best possible value for defining the night camera level, proceed as follows:\n|Camera Time Switch\n(all other models with dual lenses)\nSwitches to the other lens according to a Time Table, if the Camera Selection option has been set to auto.\nIf a time table profile is active or on (the symbol is visible), the camera uses the left image sensor. If the time table profile is not active or off, the camera will use the right image sensor.\nSelect the display size of the image.\nWhen selecting Custom Size, the camera will use the image size specified in the Custom Size field (see below).\nEnter the size of the customized image in pixels that is displayed if Resolution has been set to Custom Size.\nThe image will be cut from the next larger standard image format (160x120, 320x240, 640x480, 1280x960). If the image size defined here is smaller than the corresponding standard image format, clicking with the mouse near the borders of the image will move the image within the standard image in that direction (panning).\nExample: An image with\nUsually, the camera's digital zoom is controlled using the softbuttons (1x Zoom, 2x Zoom, 4x Zoom) or the Zoom control drop-down menu of the image settings on the Live screen. The settings of this option will influence how the camera zoom operates.\nYou can set the following options:\n|Frames per second||Number of images per second that are recorded by the camera. When long exposure times are necessary to comply with poor lighting conditions, the frame rate decreases.|\n|Mirroring||Using this parameter, you can mirror the image (but not the displayed text) vertically, horizontally and along both axes simultaneously.|\n|Mirror & Rotate Image||\nUsing this parameter, you can turn the image (but not the displayed text) by 180°. It is recommended you use this feature only for indoor applications only as the camera warranty would be void otherwise (see below).\nIn order to improve image quality, you can adjust the sharpness control value. A lower value results in a smoother (less crisp) image.\nIf the value is too high, the image may appear noisy or blurred.\n|Dark Noise Suppress||\nGrowing darkness results in image quality getting poorer. This effect is called image (or dark) noise.\nThe Dark Noise Suppress parameter minimizes this effect.\n|Obscure Image Enable||\nIn some applications, certain image parts need to be obscured.\n|Obscure Image Time Table||Select a Time Table profile to activate/deactivate the obscured image areas in a scheduled manner.|\n|Obscuring Image Areas||\nDefines the image areas that are to be obscured; every line in the definition box (e.g.\nFormat of one line:\nParameters of one configuration line:\nClick on the Set button to activate your settings and to save them until the camera is rebooted.\nClick on the Close button to close the dialog. While closing the dialog, the system checks the entire configuration for changes. If changes are detected, you will be asked if you would like to store the entire configuration permanently.","domain":"optical_engineering"}
{"url":"http://www.dabntz.com/uv-technology/","date":"2021-08-05T03:45:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046155322.12/warc/CC-MAIN-20210805032134-20210805062134-00124.warc.gz","language_score":0.9330352544784546,"token_count":1082,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__108086679","lang":"en","text":"Ultraviolet light occurs naturally; it is a portion of the electromagnetic spectrum produced by the sun. As with visible light, it can be produced using both conventional mercury lamps and LED technology. Ultraviolet light is used in a broad range of applications including material curing, healthcare, and disinfection and sterilization of air, surfaces, and water.\nMercury lamps have been the most widely used UV light source but today, smaller, more robust and toxin-free, UV LEDs are available and capable of replacing mercury lamps in many solutions. The UV LEDs’ small size makes it possible to incorporate the technology into a broad range of consumer applications that help make people healthier and feel better.\nUV LEDs use the same core semiconductor processes that are used to produce LEDs for illumination. They offer all the benefits of LEDs: long life, no mercury, no lead, small and robust and the germicidal benefits of ultraviolet light. However, none of the light emitted from the LEDs is in the visible portion of the electromagnetic spectrum.\nUltraviolet light is a form of electromagnetic radiation just like visible light, x-rays, and infrared light. The ultraviolet portion of the electromagnetic spectrum is between 10nm and 400nm. Visible light is on the spectrum from 400nm to 700nm and x-rays are in the range of 0.01nm to 10nm.\nUVC light in the 200nm to 280nm range has been considered germicidal. Many assumed that 254nm was the optimum wavelength for disinfection but this was primarily due to the fact that peak UV light from mercury vapor lamps is 254nm. With no alternative solutions to the mercury vapor lamps little consideration was given to the effect of other wavelengths. However, with the advent of LEDs that can be ‘tuned’ to specific narrow wavelength bands, scientists have expanded their testing and analysis to truly understand the range of wavelengths that are effective for disinfection, sterilization and purification.\nScientists now describe a germicidal range that extends to 300nm in the UVB range. They have proven that wavelengths above 280nm are in-fact effective for disinfection and sterilization and that different germs respond to different wavelengths of ultraviolet light.\nWavelength, time, and intensity are they key factors in determining germicidal effectiveness. For example, two systems, one using UV light at 270nm and one at 280nm could have the same germicidal effectiveness. To achieve parity, the 280nm system may require additional time or additional power (intensity) and possibly exposure time.\nThe DNA, RNA and proteins of microorganisms absorb the ultraviolet light from RayVio’s UV LEDs. By absorbing this energy, a photochemical reaction is triggered that breaks the DNA’s chemical bonds and inactivates the bacteria, virus or fungi.?As a result, the germs can no longer reproduce or grow. The degree to which the germ population is rendered ineffective is usually reported publicly in the form of a percentage such as 99% or 99.9% effective.\nThe degree to which something is disinfected is a variable that can be measured. The typical convention is to claim that something kills 99% of germs or possibly 99.9% or more. The table below shows the standard reference from the Centers for Disease Control for reporting effectiveness. The CDC considers 99.9999% effective as sterilized.\nReduction levels of one million bacteria on a medical device are shown below.\n90% reduction - 100,000 bacteria remain.\n99% reduction - 10,000 bacteria remain.\n99.9% reduction - 1,000 bacteria remain.\n99.99% reduction - 100 bacteria remain.\n99.999% reduction - 10 bacteria remain.\n99.9999% reduction - 1 bacterium remains.\nTRUVIOLET is the most advanced and effective UV LED technology available. It was designed and developed to kill germs everywhere, including in water, in the air and on surfaces. At the core of TRUVIOLET is digital UV LED technology. While UV light has been used for disinfection for more than a century, TRUVIOLET makes it truly safe for the light to be used at home as well as in professional settings and it eliminates the use of mercury which is better for the environment and people alike. TRUVIOLET is compact and powerful ultraviolet technology that is fast, convenient, and offers absolute control that improves the experience for the end-user.\nTRUVIOLET makes it possible for health and hygiene companies to incorporate UV LED technology that is proven to be effective at 6-log rates (99.9999%) and can be digitally controlled and packaged with other sensors and electronics. TRUVIOLET is more than an LED; it’s a microchip of health – one that can change the world in sixty seconds.\nRayVio’s UV light is highly effective against a wide range of microbes, including antibiotic and chemical resistant ones that cause hospital acquired infections (HAI)\nUV light does not change the odor or taste of water or air that has been disinfected\nRayVio’s small, compact UV LED sources enable end-use locations, like faucets, and portable applications\nRayVio’s UV LEDs do not contain mercury or other hazardous substances that are found in other UV light sources","domain":"optical_engineering"}
{"url":"http://www.vandf.co.uk/gallery/laser-cutting-aluminium/","date":"2024-04-16T07:36:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817073.16/warc/CC-MAIN-20240416062523-20240416092523-00126.warc.gz","language_score":0.8996396660804749,"token_count":289,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166891180","lang":"en","text":"As well as laser cutting mild steel, zintec, galvanised steel, copper, brass and stainless steel sheet metal work our Trumpf 3030 3KW fibre laser is more than happy to cut aluminium sheet metal. The laser cutter can cut all commercial grades of aluminium with or without plastic peelable plastic films up to 6mm thick. Here at V and F Sheet Metal we tend to find that our customer base requires us to laser cut 5251, 1050A and 6082 aluminium alloy grades which seems to suit most commercial requirements.\nFiber laser cutting for sheet metal components presents a cutting-edge solution with several distinct advantages. Firstly, fiber lasers excel in precision, enabling intricate designs and complex patterns with minimal material waste. The technology’s high cutting speeds contribute to enhanced productivity, ensuring efficient production processes. Fiber lasers also exhibit versatility by effortlessly handling various metal thicknesses and types, from thin sheets to thicker materials. Furthermore, the process is characterized by its energy efficiency, reducing operational costs and environmental impact. The non-contact nature of fiber laser cutting minimizes tool wear, leading to longer equipment lifespan. In essence, fiber laser cutting offers a potent combination of precision, speed, versatility, efficiency, and sustainability for sheet metal fabrication.\nWe have shown below just a small range of the parts we have laser cut recently and more will be added over time to show off the versatility of the Trumpf fibre laser cutting machine.","domain":"optical_engineering"}
{"url":"http://tamago.mtk.nao.ac.jp/tama/intro.html","date":"2022-07-07T07:12:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104683708.93/warc/CC-MAIN-20220707063442-20220707093442-00494.warc.gz","language_score":0.8927959203720093,"token_count":182,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__165663497","lang":"en","text":"Shematic view of Laser Interferometrer Gravitational Wave Detector.\nInterferometric detectors are regarded as promising devices for gravitational wave detection. Since the effects of gravitational waves appear as a fluctuation of optical path length, it is required to detect the phase differences between two orthogonal light paths of a Michelson type interferometer. To achieve a sensitive detection, a method called \"RF Dark Fringe Locking\" is generally used. Phase modulation applied by Electro-Optic(EO) modulators the interferometer move the measurement band to high frequencies. To realize a long optical path length in the interferometer, a multi-pass geometry called optical delay-line or Fabry-Perot cavity is used. One of the interfering output beams is detected by a photo detector, and its intensity is held to a minimum of interference(dark fringe) by a servo system.","domain":"optical_engineering"}
{"url":"https://beammax.en.made-in-china.com/","date":"2021-10-20T06:26:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585302.91/warc/CC-MAIN-20211020055136-20211020085136-00209.warc.gz","language_score":0.8580896258354187,"token_count":263,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__274629017","lang":"en","text":"LED Street Light, UV Light, LED Flood Light manufacturer / supplier in China, offering Beammax 150W LED Street Light for Motor Way Lighting, LED 150W Highway Light for Municipal Project, LED 20W Parking Lot Area Light Beammax Design and so on.\nSuppliers with verified business licenses\n|Business Type:||Manufacturer/Factory & Trading Company|\n|Main Products:||LED Street Light , LED Flood Light , LED Highbay Light , LED Stadium Light|\n|Plant Area:||2000 square meters|\n|Management System Certification:||ISO 9001|\n|Main Markets:||South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), ...|\nNingbo Beammax Lighting Technology Co, Ltd. ( hereinafter refers as BEAMMAX) is a high-tech enterprise specialized in the development, production, and sales of LED street light and spotlight, located in the beautiful port city, Ningbo, China.\nBEAMMAX has advanced production facility, complete set of testing equipments and devices. BEAMMAX also has good R&D capability and a team with know-how supported by professional management system, thus, we can offer our customers unique design, good quality, ...","domain":"optical_engineering"}
{"url":"https://www.discoverbeauty.com/learn/procedure/laser-blood-vessel-removal","date":"2021-09-20T07:37:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057033.33/warc/CC-MAIN-20210920070754-20210920100754-00705.warc.gz","language_score":0.9369353652000427,"token_count":1170,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__209216713","lang":"en","text":"Treatment of blood vessels on the face and body can be performed safely and effectively using lasers and light devices. Blood vessels are located beneath the epidermis (superficial skin) in the dermis of the skin. Procedures to remove unwanted vessels need to be able to reach these deeper structures without damaging the epidermis. Lasers and light devices can accomplish this using a method termed ‘selective photothermolysis’. Basically, this means that the light gets selectively absorbed by the target (blood vessels for example) without damaging the surrounding tissues. Hemoglobin, the oxygen carrying component of blood, is able to absorb light of different wavelengths. Various lasers can be used targeting hemoglobin and sparing the other tissues.\nVascular lasers and light devices come in a variety of wavelengths. Hemoglobin can absorb light at many different wavelengths, which means that many devices exist for possible use. Short wavelength devices such as the potassium titanyl phosphate laser (KTP, 532nm), and the pulsed dye laser (PDL 585, 595nm) are popular choices since hemoglobin easily absorbs light at these wavelengths. However, short wavelengths sometimes don’t penetrate to a deep enough level, making treatment of areas with thicker skin, typically off the face, more difficult. Longer wavelengths, with deeper penetration, can also be used. The Neodynium Yag laser (Nd:Yag, 1064nm) and several diode lasers (800-940nm) are employed on thicker skin areas, and on deeper vessels, such as those of the legs. These wavelengths are less well absorbed by hemoglobin, but penetrate deeper. The Alexandrite laser has also recently been used for vascular lesions. With a wavelength of 755nm, its properties lie somewhere between the two groups described above. Though, at the current time, the primary use of the Alexandrite laser is still for laser hair removal and pigmented lesions. Intense pulsed light devices (IPLs) are also used to treat vascular lesions and have recently been gaining in popularity for this indication. Several vascular lasers of the past (argon, copper vapor, krypton) are no longer in use due to their increased risk for complications.\nVascular lasers can be used to treat various conditions besides telangiectasias (blood vessels). Red lesions of the skin also respond well to these treatments. Acne, acne scarring, hypertrophic (raised and thick) scars, hemangiomas, port wine stains, striae (stretch marks), photodamage, rosacea, and verrucae (warts) are other common uses for vascular lasers. All of these conditions have one thing in common, and that is the color red. Most red lesions will absorb the light emitted by vascular lasers and are possibilities for treatment with these devices.\nThe shorter wavelengths vascular lasers are also absorbed by melanin in the skin. Melanin gives skin dark color. For this reason, these devices come equipped with a cooling attachment. The cooling protects the epidermis from the laser, while the laser penetrates deeper into the dermis where the vessels are located. Without cooling, treatment with the short wavelength vascular lasers (PDL, KTP) can burn the epidermis. The longer wavelength lasers (diodes and Nd: Yag) are not well absorbed by melanin and pose less of a risk for epidermal damage, though it can occur. That being said, the short wavelength lasers with proper cooling can be used safely and effective in dark skin types.\nThe procedure is slightly different depending on which laser is used. Most of the vascular lasers do not require numbing cream. Treatment of vascular birthmarks (hemangiomas or port wine stains), or treatment of pediatric patients warrants topical anesthesia. Several sessions for optimal results are generally required. However, one session will show improvement. Treatment sessions last from 5 minutes to 30 minutes depending on the area being treated. Prior to treatment the face should be clean and free of any topicals, including sunscreen or makeup. After treatment, the skin can stay red for up to 48 hours. Some treatments with the pulsed dye laser can leave the skin with bruising for 5-7 days. Bruising is as result of the vessels being broken by the laser. This is not considered a complication, but can be difficult to conceal with makeup. Treatment of vascular birthmarks is typically performed at doses that cause bruising, but treatment of other conditions use lower energies and have little to none.\nThe pulsed dye laser (PDL) has been the workhorse of the vascular lasers for a long time. It has always been considered to be the most effective of its group. In recent studies, however, several new IPLs have been shown to be at least as effective in some cases. PDL is still the most popular of the vascular lasers, but expect others to gain recognition as these devices become more sophisticated.\nLaser treatment for any indication should be tailored to the each specific case. For vascular lasers, this includes the size of the vessel, the depth of the vessel, the patient’s skin type and location of the area to be treated. The laser’s parameters (wavelength, cooling, treatment time etc.) should be adjusted for optimal efficacy and safety with each treatment.\nPossible complications of vascular lasers include pigment changes, erythema (redness), crusting and blistering. Blistering can lead to scarring. In addition, dark hair will be temporarily removed in the area of treatment, but will re-grow after treatment. Protective eyewear should be worn by everyone in the room at all times when the laser is in operating mode.","domain":"optical_engineering"}
{"url":"https://surfingholidays.co.uk/bevi-polarized-sports-sunglasses-for-men-womentr-90-square-frame-glasses-flexible-and-durable-sun-glasses/","date":"2021-08-05T07:44:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046155458.35/warc/CC-MAIN-20210805063730-20210805093730-00606.warc.gz","language_score":0.870639979839325,"token_count":464,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__13743349","lang":"en","text":"(as of Oct 29,2020 10:50:51 UTC – Details)\nEnjoy your outdoor sports with Bevi Polarized Sunglasses\n✓ Durable and lightweight TR90 frames and 100% UV400 TAC lens includes 9 layers.\n✓ 100% block harmful UVA & UVB rays.\n✓ Colorful HD polarized lens help eliminate reflected and scattered glares.\n✓ Integrated nose pad fits comfortable for your nose and face.\n✓ perfect choice for sports or other outdoor activities.\nA Complete Accessories Set:\nBevi polarized sports sunglasses*1\nBeautiful packaging box*1\ndurable, hard zipper case*1\ncleaning cloth *1\nsunglasses safety cord*1\nTAC (Tri Acetate Cellulose) lens\nUV400 protection and Polarized\nTAC lens includes 7 layers. The 1st layer is polarization layer. The 2nd and 3rd layers are bonding layers to enable durability. The 4th and 5th layers are UV protection layers to absorb UV light. The 6th and 7th layers are shatterproof layers.\n100% UV400 protection coating, blocks 100% harmful UVA & UVB Rays. Restore true color, eliminate reflected light and scattered light，make the scenery more clear and soft and protect eyes perfectly.\nPlease do not Place the sunglasses next to the flame to avoid melting.\nPlease do not Prolonged exposure in the salt water or cleaning water with chemical.\nPlease do not wipe the lenses with finger directly. A cleaning cloth is the best choice for cleaning lenses.\nTri Acetate Cellulose lens\nScratch Resistant Coating coating\nLens width: 2.2 inches\n⭐OUTSTANDING LENSES – Impact resistant TAC lenses protect your eyes from flying objects -UV 400 Block 100% of the harmful UVA and UVB rays – Lightweight, durable, and comfortable frames\n⭐TR90 FRAME -TR90 was produced through Swiss technology as a thermoplastic material that is incredibly durable, flexible, and lightweight. Glasses made with TR90 are extremely comfortable because they have a flexible quality. Since they are flexible, they can bend under pressure and contour your face comfortably.","domain":"optical_engineering"}
{"url":"http://www.techzone360.com/topics/techzone/articles/2013/09/06/352164-nasa-builds-satellite-laser-communications-expertise.htm","date":"2015-01-25T14:15:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-06/segments/1422122087108.30/warc/CC-MAIN-20150124175447-00002-ip-10-180-212-252.ec2.internal.warc.gz","language_score":0.9182939529418945,"token_count":803,"dump":"CC-MAIN-2015-06","global_id":"webtext-fineweb__CC-MAIN-2015-06__0__67751535","lang":"en","text":"Wallops Island, Virginia – A decade or so ago, laser communication was one of the tools of the trade for establishing high-speed broadband connections between two points before fiber became plentiful. Now NASA has two projects in the works to demonstrate optical links across tens and hundreds of thousands of miles for satellite use, bringing a totally new meaning to “free space” communications.\nNASA’s first demonstration will take place in a few weeks, as the LADEE satellite circles around the Moon. Onboard the 393 kilogram satellite is the Lunar Laser Communications Demonstration (LLCD). As LADEE settles in, LLCD will use a near-infrared laser to pump data downstream at speeds up to 622 Mbps, with an uplink speed around 20 Mbps.\nImage via Shutterstock\nLLCD is a 65 pound system made up of an optical module, a modem module and a controller electronics module. A 10 centimeter wide telescope onboard the satellite will point a 0.5-watt infrared laser – the same type used in ground-based fiber optic cables -- at one of three receiving stations on earth, where the now 5 kilometer wide beam (yes, it’s a LOT of spread) will be picked up by a cluster of four 17 inch telescopes used to collect and focus the signals into optical fiber and detectors. A cluster of four 6 inch telescopes are used to send a beacon to the satellite for pointing, as well as uplink data.\nTwo reception sites are located in the United States with a third in Europe - White Sands, New Mexico, JPL’s Optical Communications Telescope Lab in Wrightwood, California, and the European Space Agency’s Optical Ground Station in Tenrite, Spain. A six month study of sites around the world was conducted to find the right balance of clear skies – clouds/fog/rain and lasers don’t mix – and access to high-speed ground broadband. Researchers didn’t want to pull 622 Mbps down only to bottleneck into 45 Mbps speeds on the ground.\nA spokesperson working on LLCD said the 622 Mbps downlink speed is a significant increase over the roughly 100 Mbps Ka-band systems used on a previous lunar mission. A NASA glossy says that while an HD movie downloaded at current radio transmission rates would take over 60 minutes, LLCD would be able to down load a same-length video in under eight.\nNASA’s next laser communications demonstration project will be closer to home and go faster. The Laser Communications Relay Demonstration (LCRD) is expected to be launched as a hosted payload onboard a Space Systems/Loral communications satellite in 2017. LRCD will operate for two years, using a pair of optical terminals in geosynchronous orbit to transmit at speeds up to 1.25 Gbps in both directions.\nSuccessfully demonstrations of optical communications will allow NASA to put bandwidth-intensive instruments, such as hyperspectral images and SAR radar, on planetary probes. It will also open up optical communications to be used for data in satellites closer to earth, allowing designers to pack more bandwidth into a smaller, more power-efficient footprint.\nNBCUniversal is using the largest annual live sports viewing stage - the Super Bowl - to pitch consumers the benefit of a cable TV subscription - by o…\nAt least 40 percent of organizations that use real-time video applications are employing it in more than a dozen use cases.\nI don't mean the tablet will be used in the film, I mean it will be used as the camera to create the movie. The tablet in question is the Dell Venue 8…\nThe law also makes it a felony to traffic in information such as passwords and trafficking will now include posting a link. Basically, the new law wou…\nWill the world be surrounded by the largest satellite network ever created? OneWeb, formerly known as WorldVu Satellites, secured an undisclosed amoun…","domain":"optical_engineering"}
{"url":"https://octlight.com/applications/industrial-applications/","date":"2024-04-15T06:06:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00290.warc.gz","language_score":0.9162294864654541,"token_count":237,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__100601515","lang":"en","text":"Which Industrial Applications Can the VCSEL Swept Source Platform Be Used for?\nAlthough the medical OCT applications are numerous there are equally important industrial applications. Optical metrology and in-line inspection are two examples of non-destructive testing where the non-invasive coherent detection based on VCSEL Swept Source can bring unique benefits in terms of quality control at the speed required.\nTight tolerances in manufacturing are becoming increasingly important. Coordinate measuring machines (CMM) is used in industry to provide tight production tolerances. Optical metrology provides non-touching metrology with sub-micro precision at fast speed. During manufacturing in-line inspection for process, control is also key for high-quality manufacturing. In-line monitoring is implemented in laser welding where it provides better control of important parameters such as seam control and depth control.\n3D printing is an emerging manufacturing technology, also known as additive manufacturing, where OCT provides important feedback on surface height, structure, and topography.\nWith our deep knowledge in VCSEL OCT, we can help guide you from your initial technical feasibility all the way through to manufacture and supply.","domain":"optical_engineering"}
{"url":"https://business.ricentral.com/ricentral/news/read/41514222/teramount_appoints_ilan_haber_as_vice_president_of_product","date":"2021-09-24T15:57:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057558.23/warc/CC-MAIN-20210924140738-20210924170738-00130.warc.gz","language_score":0.9570460319519043,"token_count":460,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__173314958","lang":"en","text":"JERUSALEM, June 28, 2021 /PRNewswire/ -- Teramount, the Silicon Photonics optical coupling device vendor, today announced the appointment of Ilan Haber as Vice President of Product. In this role Ilan will be responsible for the direction of the company's product roadmap as well as overseeing product management. He will also work closely with Teramount's engineering team to address customer inputs and help them solve business problems.\nIlan brings more than 20 years of expertise in managing product strategy and marketing in high-technology organizations. Most recently, Haber held the role of senior director of R&D and Marketing for MKS Instruments (NASDAQ: MKSI). Prior to his role at MKS Instruments, Haber was the director of R&D and marketing at Ophir Optronics. He holds an MSc in Applied Physics from The Hebrew University of Jerusalem and an MBA from Bar-Ilan University. Haber was also the founder and CEO of several startup companies in the optical industry.\n\"Ilan is an experienced leader and has the right qualifications to deliver high quality products to customers, while creating an atmosphere of development excellence across the board in the company,\" says Teramount CEO Hesham Taha. \"I am sure he will bring a unique added value to the team.\"\n\"Teramount's innovative Photonic Plug technology will bring to the fiber optic connectivity space similar value to what SMT (Surface Mount Technology) brought to the electronics industry. I look forward to the opportunity to further develop this vision for Teramount's new offerings\", says Haber.\nThe company completed recently an $8 million funding round, by Grove Ventures with participation from Amelia Investments, as well as former executive VP of Intel and company Chairman, David (Dadi) Perlmutter and other private investors. The recent fund will advance development and commercialisation of Termamount's Photonic Plug technology in the field of co-packaged optics for networking and advanced computing applications.\nTeramount is based in Jerusalem, Israel. The company's Photonic Plug is the enabling technology to make optical connectivity in the semiconductor industry scalable. The company is engaged with leading datacom and telecom customers and has established partnerships with significant semiconductor eco-system players.","domain":"optical_engineering"}
{"url":"http://oak-china.com/product_Info-16-24.html","date":"2020-05-26T02:38:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390442.29/warc/CC-MAIN-20200526015239-20200526045239-00572.warc.gz","language_score":0.8827600479125977,"token_count":219,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__46677881","lang":"en","text":"The core component of the passive infrared device is an infrared detector (infrared sensor). Through the cooperation of the optical system, it can detect the change of thermal radiation in a certain stereo space. When there is no target such as a moving body in the prevention area, since all background objects (such as walls, furniture, etc.) have relatively small infrared radiation energy at room temperature and are basically stable, all alarms cannot be triggered. When a human body moves around the detection area, it will cause a change in the energy of the infrared heat radiation. The infrared sensor converts the received infrared heat radiation energy between the active human body and the background object into a corresponding electrical signal, and after appropriate processing, sends it to the alarm controller to issue an alarm signal. This product adopts the detector of all digital CPU processor and advanced fuzzy logic control technology to ensure the detection range and enhance the stability and anti-RF, strong light interference and other characteristics. The built-in sensitivity selection function and temperature compensation circuit ensure the detection distance in different temperature environments to avoid false alarms caused by environmental interference.","domain":"optical_engineering"}
{"url":"https://www.techknowable.com/xiaomi-new-wireless-ar-glasses/","date":"2024-03-01T03:21:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474948.91/warc/CC-MAIN-20240301030138-20240301060138-00471.warc.gz","language_score":0.9381187558174133,"token_count":1260,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__55202064","lang":"en","text":"Xiaomi, the Chinese multinational electronics company, has recently announced the development of Xiaomi new wireless AR glasses. These glasses are expected to revolutionize the way we interact with the digital world by allowing users to view digital information in the real world through augmented reality (AR) technology. This article will delve into the idea phase of Xiaomi’s new wireless AR glasses, exploring the inspiration behind the glasses, the design process, and the potential applications of this new technology.\nXiaomi has been working on the development of their new wireless AR glasses for quite some time now. The company has always been at the forefront of innovation, constantly introducing new technology to the market. Their new AR glasses are no exception. The glasses are designed to provide users with a more immersive and interactive experience with digital information. This technology will change the way people interact with the digital world, making it more accessible and convenient than ever before.\nInspiration behind the glasses\nTable of Contents\n- 1 Inspiration behind the glasses\n- 2 Understanding AR technology\n- 3 The design process\n- 4 Hardware components of the glasses\n- 5 Software components of the glasses\n- 6 Advantages of the wireless feature\n- 7 Potential applications of the AR glasses\n- 8 Advancements in AR technology\n- 9 Competitors in the AR glasses market\n- 10 Conclusion\n- 11 FAQs\nThe inspiration behind the AR glasses came from the desire to create a more immersive and interactive experience with digital information. Xiaomi wanted to create a device that would allow users to see the world in a different way, one that combined both the physical and digital world. The idea was to create a pair of glasses that would seamlessly integrate into the user’s life, providing them with the information they need when they need it.\nUnderstanding AR technology\nAR technology is a relatively new concept that has gained popularity in recent years. It is the ability to overlay digital information onto the real world, creating a new, augmented reality. AR technology uses computer vision, machine learning, and sensor data to recognize and track the real world, while also rendering and displaying digital information.\nThe design process\nThe design process of Xiaomi’s new AR glasses involved a team of engineers and designers who worked together to create a device that was not only functional but also aesthetically pleasing. The glasses were designed to be lightweight and comfortable, with a sleek, modern design. The team also had to consider the hardware and software components of the glasses, ensuring that they would work seamlessly together.\nHardware components of the glasses\nThe hardware components of Xiaomi’s new AR glasses include a camera, microphones, speakers, and a battery. The camera is used to capture the user’s surroundings and track their movement, while the microphones and speakers allow for voice commands and audio feedback. The battery is designed to last for several hours, allowing for extended use.\nSoftware components of the glasses\nThe software components of Xiaomi’s new AR glasses include computer vision algorithms, machine learning models, and natural language processing technology. These components work together to recognize the user’s surroundings, understand their commands, and provide them with relevant information.\nAdvantages of the wireless feature\nOne of the biggest advantages of Xiaomi’s new AR glasses is that they are wireless. This means that users are not tethered to a device or computer, allowing for greater freedom and mobility. The wireless feature also means that the glasses can be used in a variety of settings, from the home to the office to the outdoors.\nPotential applications of the AR glasses\nThe potential applications of Xiaomi’s new AR glasses are vast and varied. They can be used in a variety of industries, from education to healthcare to gaming.In the education industry, AR glasses can be used to provide students with an interactive and immersive learning experience. For example, students could use the glasses to explore historical sites or museums, with the glasses providing relevant information and historical context. In the healthcare industry, AR glasses can be used to assist doctors and surgeons during procedures, providing them with real-time information and visual aids. In the gaming industry, AR glasses can be used to create more immersive and interactive gaming experiences.\nAdvancements in AR technology\nAR technology is constantly evolving and improving, with new advancements being made all the time. Some of the latest advancements include improvements in computer vision, machine learning, and natural language processing technology. These advancements have allowed for more accurate and precise tracking of the real world, as well as more natural and intuitive interactions with digital information.\nCompetitors in the AR glasses market\nXiaomi is not the only company that is developing AR glasses. There are several other companies that are also working on similar technology, including Google, Microsoft, and Apple. Each company has their own unique approach to AR glasses, with some focusing more on the hardware components and others focusing more on the software components.\nXiaomi’s new wireless AR glasses are set to revolutionize the way we interact with the digital world. The glasses are designed to provide users with a more immersive and interactive experience with digital information, seamlessly integrating into their lives. With advancements in AR technology and the potential for a wide range of applications, it is clear that AR glasses will play an increasingly important role in our lives in the coming years.\n- When will Xiaomi’s new wireless AR glasses be released?\n- Xiaomi has not yet announced a release date for their new AR glasses.\n- How do AR glasses work?\n- AR glasses use computer vision, machine learning, and sensor data to overlay digital information onto the real world.\n- What are the potential applications of AR glasses?\n- AR glasses can be used in a variety of industries, including education, healthcare, and gaming.\n- Are there any competitors to Xiaomi’s new AR glasses?\n- Yes, there are several other companies that are also developing AR glasses, including Google, Microsoft, and Apple.\n- What advancements have been made in AR technology?\n- Advancements in AR technology include improvements in computer vision, machine learning, and natural language processing technology, allowing for more accurate and intuitive interactions with digital information.","domain":"optical_engineering"}
{"url":"http://www.turade.com/manufacture-of-optical-instruments-and-photographic-equipment.html","date":"2023-02-04T02:27:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500080.82/warc/CC-MAIN-20230204012622-20230204042622-00719.warc.gz","language_score":0.7745572328567505,"token_count":386,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__105291489","lang":"en","text":"26.70 - Manufacture of optical instruments and photographic equipment\n26.70.11 - Objective lenses for cameras, projectors or photographic enlargers or reducers\n26.70.12 - Cameras for preparing printing plates or cylinders; cameras for recording documents on microfilm, microfiche and the like\n26.70.13 - Digital cameras\n26.70.14 - Instant print cameras and other cameras\n26.70.15 - Cinematographic cameras\n26.70.16 - Cinematographic projectors; slide projectors; other image projectors\n26.70.17 - Flashlights; photographic enlargers; apparatus for photographic laboratories; negatoscopes, projection screens\n26.70.18 - Microfilm, microfiche or other microform readers\n26.70.19 - Parts and accessories of photographic equipment\n26.70.21 - Sheets and plates of polarising material; lenses, prisms, mirrors and other optical elements (except of glass not optically worked), whether or not mounted, other than for cameras, projectors or photographic enlargers or reducers\n26.70.22 - Binoculars, monoculars and other optical telescopes; other astronomical instruments; optical microscopes\n26.70.23 - Liquid crystal devices; lasers, except laser diodes; other optical appliances and instruments n.e.c.\n26.70.24 - Parts and accessories of binoculars, monoculars and other optical telescopes, of other astronomical instruments, and of optical microscopes\n26.70.25 - Parts and accessories of liquid crystal devices, lasers (except laser diodes), other optical appliances and instruments n.e.c.\nManufacture of optical instruments and photographic equipment\nProduct you are looking for could not be found in this category and under this category!","domain":"optical_engineering"}
{"url":"https://approidtechnologies.com/luminar-reveals-sensors-that-could-make-self-driving-cars-safer-than-human/","date":"2021-05-11T15:42:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991648.10/warc/CC-MAIN-20210511153555-20210511183555-00091.warc.gz","language_score":0.9355630278587341,"token_count":193,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__193794265","lang":"en","text":"Cameras help autonomous vehicles read street signs and the color of traffic lights. But LiDARs, aka light detection and ranging systems, do the important work of sensing and helping cars avoid obstacles, whether that’s a fallen tree, drunk driver, or a child running out into the road.\nNow, a startup called Luminar Technologies Inc., is unveiling a high-resolution LiDAR sensor that was five years in the making. The startup, which has raised $36 million in seed-stage funding so far, built its LiDAR systems from scratch. That means the company engineered its own: lasers, receivers, chips, packaging and more, rather than incorporating off-the-shelf components.\nRead more: https://techcrunch.com/2017/04/13/luminar-debuts-a-sensor-to-make-self-driving-cars-safer-than-human/","domain":"optical_engineering"}
{"url":"https://chaosheng-cnc.com/blogs/blog/co2-laser-engraving-machine-ccd-camera-manufacturer-a-comprehensive-guide","date":"2024-04-20T10:59:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00087.warc.gz","language_score":0.871493399143219,"token_count":969,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__133081438","lang":"en","text":"The Ultimate Guide to co2 laser engraving machine ccd camera manufacturers\nIntroduction: In today's technologically advanced world, CO2 laser engraving machines with CCD cameras have become an indispensable tool for various industries. These machines offer precise engraving capabilities and are widely used in the manufacturing sector. This comprehensive guide will provide you with valuable information about CO2 laser engraving machine CCD camera manufacturers, their features, benefits, and applications.\n1. Understanding CO2 Laser Engraving Machines\nCO2 laser engraving machines are advanced devices that use a carbon dioxide laser to engrave or cut materials with high precision. These machines are equipped with CCD cameras, which provide real-time monitoring and enhance the accuracy of the engraving process. The combination of CO2 laser technology and CCD cameras makes these machines highly efficient and reliable.\n2. Importance of CCD Cameras in Laser Engraving Machines\nCCD cameras play a vital role in CO2 laser engraving machines. They offer live video feed, allowing operators to monitor the engraving process in real-time. This feature helps in aligning the material accurately and ensures precise engraving. CCD cameras also enable the capture of intricate details and enhance the overall engraving quality.\n3. Choosing the Right CO2 Laser Engraving Machine CCD Camera Manufacturer\nWhen selecting a CO2 laser engraving machine CCD camera manufacturer, it is crucial to consider several factors. Look for manufacturers with a proven track record in the industry, positive customer reviews, and excellent after-sales support. Additionally, consider the machine's specifications, such as laser power, engraving area, and software compatibility.\n4. Top CO2 Laser Engraving Machine CCD Camera Manufacturers\nIf you are in the market for a CO2 laser engraving machine with a CCD camera, here are some top manufacturers to consider:\n- Manufacturer A: Known for their high-quality machines and reliable CCD camera technology.\n- Manufacturer B: Offers a wide range of models with advanced features and excellent customer support.\n- Manufacturer C: Specializes in industrial-grade CO2 laser engraving machines with cutting-edge CCD camera systems.\n5. Benefits of CO2 Laser Engraving Machines with CCD Cameras\nCO2 laser engraving machines with CCD cameras offer numerous benefits, including:\n- Precision: The combination of CO2 laser technology and CCD cameras ensures precise and accurate engraving.\n- Efficiency: The real-time monitoring provided by CCD cameras helps optimize the engraving process, saving time and improving efficiency.\n- Versatility: These machines can engrave a wide range of materials, including wood, acrylic, glass, leather, and more.\n- Quality: The high-resolution CCD cameras capture intricate details, resulting in superior engraving quality.\n6. Applications of CO2 Laser Engraving Machines\nCO2 laser engraving machines with CCD cameras find applications in various industries:\n- Advertising: Engraving logos, text, and graphics on promotional items, signage, and displays.\n- Personalization: Customizing products such as jewelry, phone cases, and gift items with names or designs.\n- Industrial: Engraving serial numbers, barcodes, and other identification marks on industrial components.\n- Art and Crafts: Creating intricate designs on wood, acrylic, and other artistic mediums.\n7. Maintenance and Care of CO2 Laser Engraving Machines\nTo ensure the longevity and optimal performance of your CO2 laser engraving machine with a CCD camera, follow these maintenance tips:\n- Regularly clean the lens and mirrors to prevent dust and debris buildup.\n- Check and replace the CO2 laser tube as per the manufacturer's guidelines.\n- Keep the machine in a well-ventilated area to prevent overheating.\n- Perform routine calibration and alignment to maintain engraving accuracy.\n8. Future Trends in CO2 Laser Engraving Machine CCD Camera Manufacturing\nAs technology continues to evolve, CO2 laser engraving machine CCD camera manufacturers are expected to introduce several advancements. These may include improved camera resolutions, enhanced software integration, and the incorporation of artificial intelligence for automated engraving processes.\nCO2 laser engraving machines with CCD cameras have revolutionized the manufacturing industry with their precision and efficiency. Choosing the right manufacturer and understanding the benefits and applications of these machines is crucial for successful implementation. By following proper maintenance procedures and staying updated with emerging trends, you can maximize the performance and longevity of your CO2 laser engraving machine CCD camera.","domain":"optical_engineering"}
{"url":"https://www.talontechsales.com/acuity.html","date":"2021-11-30T19:00:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359065.88/warc/CC-MAIN-20211130171559-20211130201559-00449.warc.gz","language_score":0.8617734313011169,"token_count":592,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__144183639","lang":"en","text":"Acuity Laser Distance Sensors\nAcuity Laser (A division of Schmitt Industries, Inc.) was founded in 1992 to develop non-contact laser distance sensors and laser measurement systems for industrial and OEM use. Acuity non-contact laser sensors are used in applications from steel casting to paper production to medical imaging, from crane control to micron-level part and surface inspection. Non-contact measurement sensors from Acuity Laser conform to and possesses ISO 9000:2000 certification.\nAcuity Short-Range Sensors provide Laser Displacement sensors measuring 3 to 1,300 mm\nThe AR200 Laser Measurement Sensor is Acuity's most compact product with four metric models to satisfy precision measuring requirements from 6 mm to 50 mm with up to 12 micron accuracy.\nThe AccuRange 500 Laser Position Sensor is fast and accurate measurement devices. Available up to ranges of 1,000 mm with all models using a compact enclosure. These sensors are available with optional BLUE laser diodes.\nThe AR700 Laser Displacement Sensor is Acuity's newest, high-resolution sensor. Models vary in measuring range and can achieve resolutions better than 0.2 micron with increased sampling speeds up to 9.4 Khz to satisfy most requirements most high speed applications.\nAcuity long-distance laser sensors offer a variety of rangefinders for accurate, non-contact distance measuring\nThe AR1000 Laser Distance Sensor can measure up to 30 meters with an accuracy of 3 mm. Using a reflective target board, the sensor will measure distances up to 150 meters.\nThe AR2500 Laser Range Finder Sensor is Acuity's ultra-compact model with eye-safe measurements up to 30 KHz to natural targets 30 meters away or to reflectors 260 meters away. The AR2500 is also available in module format to system integrators and high-volume OEM customers.\nThe AR3000 Distance Measurement Sensors are longest-range models. Ideal for measuring positions of cranes and trolleys, the pulse time-of-fight sensor can reach 300 meters to normal surfaces and up to 3,000 meters when using a reflective target. With sampling speeds to 2 KHz, the AR3000 sensors can monitor the speed of moving targets.\nAcuity Laser Profile Scanners for 2D profiles\nThe AccuProfile 820 Laser Scanner produces a 2D profile of surfaces and objects with great precision. The line sensor is used to calculate dimensions such as width, thickness, height, gap, diameter and angles.\nWhite Light Confocal Sensors\nThe AccuRange™ CCS Prima White Light Confocal Displacement Sensor is the most precise measurement system from Acuity. Using white light LED (rather than laser) the system employs a unique measuring principle that separates emitted light into different colors and then uses a detector to identify the reflected color signal. The CCS Prima sensor uses a controller, optical fiber and measurement pen.","domain":"optical_engineering"}
{"url":"http://www.dyroad.cn/reflective-glass-beads.html","date":"2017-03-29T09:09:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190236.99/warc/CC-MAIN-20170322212950-00124-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8329145312309265,"token_count":168,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__201685833","lang":"en","text":"Reflective glass beads is used to improve the retro-reflection property of the road marking paint. When driving at night, the headlights flash on the marking line with glass beads which makes the headlights reflex back in parallel, so the driver could see the forward way clearly and the driving security is raised at night.\n|Exterior appearance||Transparent spheres, glabrous and round, no obvious bubbles and impurities|\n|Roundness ratio||Roundness ratio≥80% （when 600＜sphere diameter＜850µm, roundness ratio≥75%）|\n|Density||2.4 - 2.6 g/cm3|\n|Glass element||Composed of soda-lime glass, content of SiO2 >68%|","domain":"optical_engineering"}
{"url":"https://filmup.co/dji-mavic-2-pro-mavic-2-zoom-swap-service/","date":"2021-04-20T17:43:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039476006.77/warc/CC-MAIN-20210420152755-20210420182755-00448.warc.gz","language_score":0.9443583488464355,"token_count":750,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__202888466","lang":"en","text":"DJI Announces Swap Service for Mavic 2 Pro and DJI Mavic 2 Zoom\nDJI has finally announced the predecessor to its popular Mavic camera, and there are two of them: The Mavic 2 Pro and Mavic 2 Zoom. Both great options, each camera has an 8 GB internal storage and is powered by a 3830 mAh battery.\n“The Mavic 2 is the most advanced DJI camera drone ever built, designed for professionals, aerial photographers and content creators,” says the company. “Incorporating the iconic folding design of the world’s most popular Mavic Pro, the Mavic 2 is a powerful platform with new gimbal-stabilized cameras and advanced intelligent features like Hyperlapse and ActiveTrack for easier and more dynamic storytelling. With an impressive flight time of up to 31 minutes and a more stable video transmission system, Mavic 2 delivers the optimal flight experience for capturing epic shots.”\nHowever, the Mavic 2 Pro and Mavic 2 Zoom feature some important differences. The company has also announced a new swapping service so that users can upgrade their camera assemblies.\nThe Mavic 2 Zoom can record from a distance with its hybrid zoom system and 24-48mm lens. This results in more compression (you won’t be able to do this with the DJI Mavic 2 Pro). DJI says that the camera is the first foldable consumer drone to come with optical zoom.\nThe Mavic 2 Zoom also has a Dolly Zoom effect and a 12 MP camera with a 1/2.3 inch CMOS sensor. Finally, the camera is able to capture a crisp 48 MP Super Resolution Photo by taking multiple images and then stitching them together.\nThe price of the Mavic 2 Zoom is $1,249.\nHowever, the DJI Mavic 2 Pro, made by Swedish camera maker Hasselblad, has a larger 1″ CMOS sensor that records using its 10-bit DLog-m. It can also get a 20-bit HDR video. The camera also features an adjustable aperture that can go from f/2.8 to f/11 and has a fixed 24mm wide angle lens.\nThe DJI Mavic 2 Pro can shoot videos in the 4K video at 30fps, 720p at 120fps and H.265 codec. In the camera’s sports mode, the drone can be used at a maximum speed of 44 mph.\nThe price of the Mavic 2 Pro is $1,449.\nNew Swapping Service\nYou cannot release a Mavic 2 camera from its gimbal assembly and swap it out the way you can with an Inspire 2 camera. For safety reasons, DJI is not selling the Zoom and Pro cameras individually so you can swap them out. Instead, DJI has announced a swapping service operated through the company’s tech support locations, similar to the way Canon has a PL to EF mount swap. Details and costs of the program have not yet been released, but many filmmakers are excited about the opportunity to update their cameras.\nThe company has warned users against trying to swap the cameras out themselves; this is not recommended because it could damage the equipment and require an expensive repair.\nDo you think you’ll be using the DJI Mavic Pro 2 or the DJI Mavic Pro Zoom? And would you partake in the new swapping service? Let us know in the comments!\nCheck-Out: FilmUp Approved Gear & Today’s Deals on Gear","domain":"optical_engineering"}
{"url":"https://newb.kettering.edu/wp/photonics/education-and-outreach/","date":"2020-03-30T23:07:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370497309.31/warc/CC-MAIN-20200330212722-20200331002722-00287.warc.gz","language_score":0.9530474543571472,"token_count":244,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__213460967","lang":"en","text":"The Photonics and Fiber Optics Lab is actively involved in outreach activities aimed at raising awareness about this exciting field of science among our local community, particularly among middle school and high school students and teachers.\nWe are fortunate that the demonstration of optics and photonics concepts is so visually reach, eye-pleasing and immediately intuitive at any school age, even to students without substantial education in Math and Science. This, we believe, makes Optics and Photonics the ideal topic to introduce to middle and high-school students, as a vehicle to spark their interest in Science in general, and in Optics and Photonics in particular. To this end, over the course of the past two years, the lab has hosted several demonstrations in support of such university-wide activities as Kamp Kettering, DiscoverU, 21st Century Woman, and Discover Kettering open house. Demonstrations in optical fibers, illumination, lasers, holography and imaging have been included. The pictures on this page are a cross section of these activities.\nThe content of this page was prepared by Dr. Corneliu Rablau, Associate Professor of Physics at Kettering University, Director of the Photonics and Fiber Optics Lab.","domain":"optical_engineering"}
{"url":"http://crs.snnu.zjlegou.com/info/1012/2494.htm","date":"2021-03-02T22:36:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178364932.30/warc/CC-MAIN-20210302221633-20210303011633-00007.warc.gz","language_score":0.9095438122749329,"token_count":537,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__222832817","lang":"en","text":"Recently, the research team led by Prof. Liu Shengzhong and Dr. Yang Dong of Shaanxi Normal University's School of Materials Science and Engineering, has prepared a high-performance planar-type perovskite solar cell with ionic liquid (IL) modification TiO2 as the electron transport materials (ETLs), and the efficiency of their solar cells is as high as 19.62%, the highest value ever reported so far for planar-type devices.\nIn the last few years, organometal-trihalide perovskites have been recognized as the most promising absorber materials for low-cost, high efficiency solar cells because of their superior properties including strong light absorption, long range charge-carrier diffusion, high carrier lifetime, and apparent tolerance to defects. The ETL with excellent photoelectronic properties is very crucial in high performance of perovskite solar cells.\nIn their previous work, the team used the IL with high electron mobility and good transmittance as ETL to fabricate the flexible perovskite solar cells and the efficiency reached 16.09%, the highest value reported by that time. (Adv. Mater., 2016, 28, 5206-5213)\nThis time, they employed the IL modification TiO2 (m-TiO2) as ETLs to fabricate the hysteresis-free planar-type perovskite solar cells and the efficiency reached as high as 19.62%, the highest value reported so far for planar-type devices. The electron mobility of TiO2 ETL is enhanced and its Fermi level moves upward after IL modification, which is beneficial to the export of the electrons in the device. Both experimental analyses and theoretical calculations reveal that the anion group of the IL bonds to TiO2, leading to higher electron mobility and well-matched Fermi level. Meanwhile, the cation group interfaces with adjacent perovskite grains to provide an effective channel for electron transport and a suitable setting to grow low trap-state density perovskite for improved device performance. In light of the effective surface modification, which is so straightforward and economic, it is anticipated to be viable for large-scale roll-to-roll production.\nThe research was recently published under the title “Surface optimization to eliminate hysteresis for record efficiency planar perovskite solar cells” in the journal Energy & Environmental Science (Impact Factor: 25.427) (Energy Environ. Sci., 2016, DOI: 10.1039/C6EE02139E).","domain":"optical_engineering"}
{"url":"http://lucentoptics.com/slat-array/","date":"2023-10-02T22:02:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511021.4/warc/CC-MAIN-20231002200740-20231002230740-00583.warc.gz","language_score":0.9316428899765015,"token_count":236,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__228804966","lang":"en","text":"SOLAR COLLECTORS REINVENTED\nThe slat-array concentrator (SAC) is an arc-shaped lightweight structure which collects incident sunlight from a large area and concentrates all that light onto a narrow strip (focal line) below. SAC is formed by an array of slat-like reflectors (hence its name) which is is a move toward replacing a continuous surface of the parabolic trough mirror with an array of much less expensive reflective slats.\nThe slat-array has a quite unique optical configuration although some analogy can be drawn with the optical design known as the linear Fresnel reflector (LFR). However, the principal difference between SAC and LFR is that the slat reflectors of SAC are inclined at more oblique angles to the normal of the concentrator’s aperture. This results in the convergent beam of sunlight passing through the concentrator structure into the spaces between the adjacent reflectors. Thus, SAC is a forward-reflecting optical system with the focus on the rear whereas LFR is a retro-reflecting system with the focus formed above the collector.","domain":"optical_engineering"}
{"url":"https://nano.wustl.edu/people/imager-microscope-zeiss-a1-axio/","date":"2022-05-20T13:49:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662532032.9/warc/CC-MAIN-20220520124557-20220520154557-00679.warc.gz","language_score":0.8209366202354431,"token_count":108,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__293175200","lang":"en","text":"Equipment Name: Imager Microscope: Zeiss A1 AXIO\nLocation: 017 Brauer Hall\n- The Zeiss Axioscope A1 can be used with reflected and transmitted light techniques such as Brightfield, darkfield, polarization, DIC, fluorescence and phase contrast.\nEquipment Use Fees\nInternal Academic: $5/hour External Academic: $10/hour Industry: $25/hour\nStaff time: Academic: $60/hour Industry: $120/hour","domain":"optical_engineering"}
{"url":"http://www.funkyflying.com/category/religious-organizationsclergy/","date":"2017-09-26T05:37:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818695066.99/warc/CC-MAIN-20170926051558-20170926071558-00450.warc.gz","language_score":0.9481923580169678,"token_count":770,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__87864211","lang":"en","text":"In the previous article , we looked into blue light from the consumers’ perspective. The Gunnars definitely look cool, but they don’t suit me as well as the green ones do. The Phenom looks a lot like the glasses that Yu Narukami wears in Persona 4, however, so if you need something for your cosplay outfit, they might work. GUNNAR patented lens technology reduces glare, and Absorbs and reflects high-energy blue light that can strain your eyes and disrupt your sleep cycle.\nThey can cost anywhere from $69 to more than $100 — a pretty steep price to pay for a pair of gaming glasses. I usually work an calibrated monitor in dim natural light and everything is fine (the right font and aliasing settings help a lot too). This is another big and obvious advantage as far as these glasses are concerned. The second big advantage that gaming glass manufacturers claim is that they are actually good for your health! The secretly placed spring hinges allows the frame of the gaming glasses to adjust to any shape and size of the head of its user. GUNNAR lens coatings reduce glare and reflective light to eliminate visual distraction and stress.\nIf this is something you’re considering, then it’s important that your glasses look sensible enough to be worn around the office, and not like something out of a Sci-Fi adventure. The downside is that you’ll need to order these directly from the manufacturer after supplying a prescription or through a licensed optical retailer.\nIn case you don’t know what gaming glasses are, we’ll start with a quick lesson: these are specifically designed glasses for those who spend a lot of time in front of the computer. Anti-reflective coating brands for prescription (and non-prescription) glasses include Crizal, Zeiss, and Teflon. When there’s no time to blink, MLG PHANTOM gaming glasses by GUNNAR doesn’t disappoint. Smite is a competitive game, fitting in with the targeted audience of gaming glasses, so it made sense.\nIn terms of build quality, glasses are typically somewhat delicate but I didn’t notice any scratches, frame distortion or general ‘cheapness’ in the SteelSeries pair that I tested. The J+S Vision Blues were definitely the best set of gaming glasses we looked at, and we had no choice but to give them the number 1 spot on our list. Anyway I eventually bought these things anyway only because I trust Amazon to take them back if they are rubbish. Drop us a note below or call us and our eSportRx opticians will help you create your custom gaming glasses for your games.\nThey are a quality product and while the cheap/generic brands one do work they are typically gaudy and poorly made. At only 20 grams, these glasses are super-lightweight, and the curvature of the glass protects the eye from light even coming from the side. I’m assuming that the yellow filters the blue, and that’s basically all there is to it. Assuming that’s true (somebody below said he grabbed cheap hunting glasses that worked exactly as well as https://glassysunhaters.com/ Gunnars), there’s really no reason to go for one of these specialized brands. They also have screen protectors for gaming systems like the 3DS that filter out the blue light before it gets to your eyes. The Onyx glasses also look too much like gun-range eyewear for me to use them every day. Different frames with Premium Rx lenses range from $319 to $369, and glasses with the step-down Standard Rx prescription lenses can be found for $219 to $299.","domain":"optical_engineering"}
{"url":"https://cutely.com/35/original-duka-ls-5-laser-rangefinder/","date":"2021-10-25T20:56:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587767.18/warc/CC-MAIN-20211025185311-20211025215311-00641.warc.gz","language_score":0.9077355265617371,"token_count":117,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__34568986","lang":"en","text":"The Duka LS-5 Laser Rangefinder is a useful device that simplifies complex measurement operations.\nCompared with traditional measuring instruments, the Duka LS 5 Laser rangefinder is seen as an impressive breakthrough in design. The device owns a modern OLED touch screen, is equipped with 18 methods of measuring with high precision by laser. Large 280mAh battery, supporting up to 4000 continuous measurements with just 1 charge.\nSelection of global excellent components, precision assembly, stable and accurate measurement data through precise algorithms and program optimization, millimeter accuracy, 0.2s extremely fast feedback.","domain":"optical_engineering"}
{"url":"https://www.utilityproducts.com/tools-supplies/article/16021161/work-lights-m12-and-m18-led-lanternflood-lights","date":"2019-10-21T23:50:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987795253.70/warc/CC-MAIN-20191021221245-20191022004745-00279.warc.gz","language_score":0.9076016545295715,"token_count":342,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__64389235","lang":"en","text":"Safety products / Utility safety: Milwaukee Tool introduces its M12 and M18 LED Lantern/Flood Lights. Delivering the best combination of brightness and light quality, the high definition lighting solutions feature a 180º-360º adjustable beam design that allows users to select between area lighting and task lighting for maximum versatility.\n“These products are incredibly versatile,” says Tom Simeone, Director of Marketing for Milwaukee Tool. “Between the adjustable pattern and high intensity light output, the LED Lantern Flood can replace several lights in a given environment.”\nEquipped with TRUEVIEW High Definition features, these LED lights utilize the most advanced lighting technology to deliver a consistent beam and a true representation of colors and detail, leading to a more productive work area. The 2362 and 2363 also deliver best in class light output with over 400 and 700 Lumens, respectively. On a single charge, the new lights can illuminate an area for up to 75 hours on low and up to 9 hours on high.\nA rugged design and impact resistant lens allow the new lights to withstand abusive jobsite conditions, and both models offer a lifetime warranty on the LEDs. As an added value to the user, each light also includes a high power 2.1A USB port to charge tablets, smart phones, mp3 players and other electronic devices.\nPowered by Milwaukee RED LITHIUM batteries*, the new TRUEVIEW High Definition Lighting Solutions are compatible with their respective M12 or M18 cordless systems, now offering over 100 power tool products combined.\n*batteries sold separately. M12 units are powered by M12 batteries, and M18 units are powered by M18 batteries.","domain":"optical_engineering"}
{"url":"http://alpsentek.com/en.html","date":"2021-02-28T00:26:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178359624.36/warc/CC-MAIN-20210227234501-20210228024501-00166.warc.gz","language_score":0.8834865689277649,"token_count":269,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__20891424","lang":"en","text":"Based on the working principle of human-like retina, each pixel independently captures the scene and automatically adjusts the parameters to suit the lighting conditions.\nEach pixel outputs only the light intensity change information with sub-millisecond latency . Each frame image contains only changed information to improve the overall efficiency and robustness of the system.\nALPIX can maintain good operation in extremely dark or extremely bright environments, as well as rapid changing light conditions, and improve the environment adaptability of the system.\nALPIX can simultaneously output light change information flow, feature flow, optical flow, and traditional full-frame picture signals that are fully compatible with existing image processing algorithms.\nAlpsenTek GmbH is a high-tech enterprise engaged in the research and development of machine vision sensor and algorithm. Based on the team's rich experience in vision sensors, SoC, imaging signal processing, etc., the company has developed machine vision imager with the innovative structural design of pixels, as well as a complete solution including modules, algorithms, systems. Our company's products will be widely used in different fields, including autopilot, robotics, consumer electronics, surveillance, industrial monitoring and detecting.\nEmail: firstname.lastname@example.org Address: Hagenholzstrasse 83B, 8050 Zürich","domain":"optical_engineering"}
{"url":"https://ledonevn.com/chip-led-gob/","date":"2024-04-14T10:17:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00131.warc.gz","language_score":0.9042993187904358,"token_count":824,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__137493613","lang":"en","text":"LED displays are an important part of our daily lives, and they continue to evolve with new technologies. Traditional LED displays are being replaced by more advanced options like GOB LED Display and COB LED Display. In this article, we will learn more about GOB LED Display and why it is a great choice for your display needs.\nWhat is GOB LED Display?\nGOB LED Display stands for Glue on Board LED Display. This innovative technology uses a transparent epoxy glue to seal the module surface of the LED display. This protective layer makes the display anti-collision, waterproof, anti-UV, and dustproof. It also improves the lifespan of the LEDs by enhancing heat dissipation.\nOne of the notable benefits of GOB LED Display is its shockproof nature. The glue on the board protects the display from any accidental drops or impacts during installation or transportation. This makes GOB LED Display highly reliable and durable in various environments and weather conditions.\nPros of GOB LED Display\nGOB LED Display offers several advantages:\n- Shockproof: GOB technology prevents breakage and damage caused by external impacts, making it highly reliable.\n- Anti-knock: The glue on board protects the display from cracks and damage due to knocking, increasing its lifespan.\n- Anti-collision: GOB technology reduces the risk of collision during assembly and installation, ensuring the display remains intact.\n- Dustproof: The glue on board protects the LED display from dust particles, maintaining its quality and performance.\n- Waterproof: GOB LED Display is designed to be waterproof, protecting against moisture and water damage.\n- Reliable: GOB LEDs are highly reliable and long-lasting, making them an excellent choice for various applications.\nCons of GOB LED Display\nWhile GOB LED Display offers many advantages, there are a few considerations to keep in mind:\n- Difficulty in repair: The glue on board technology makes repairing GOB LEDs challenging, so it’s important to handle them with care.\n- PCB board deformation: The stress caused by the glue can sometimes lead to PCB board deformation, affecting the flatness of the screen.\n- Thermal alteration: Repeated exposure to hot and cold temperatures can cause colloid discoloration and partial degumming.\n- Secondary image: The colloid covering the luminous surface of the LED display may create a secondary optical image, affecting viewing effects.\n- False welding: In the case of false welding, repairing GOB LED Displays can be quite challenging.\nApplications of GOB LED Display\nGOB LED Display technology is particularly well-suited for displays that require LED diode protection. Some common applications include:\n- Rental LED screens, which often go through assembly, installation, and transportation processes, benefit from the shockproof and anti-knock features of GOB LED Display.\n- Transparent LED displays, which are more prone to damage, can be protected by GOB technology, ensuring their longevity and maintaining display quality.\n- Small pitch LED displays with a pixel pitch of less than 2.5mm can benefit from the damage prevention offered by GOB technology.\n- Flexible LED displays, which use soft modules, are safeguarded from moisture damage and scratches with GOB technology.\n- Floor LED screens can take advantage of the waterproof, shockproof, and dustproof features of GOB LED Display, ensuring their durability even under heavy foot traffic.\n- Irregular shaped LEDs used in indoor public places benefit from GOB technology, as it protects against spills and accidental pressure.\nOverall, GOB LED Display is an excellent choice for various applications due to its protective features and reliability.\nWhen considering LED display options, it’s important to explore the different technologies available. GOB LED Display offers unique advantages that make it a great choice for anyone looking for a durable and high-performing display solution.\nFor more information or to purchase GOB LED Display products, visit LEDONE VIỆT NAM.","domain":"optical_engineering"}
{"url":"https://www.s-worldelectronics.com/product/voigtlander-color-skopar-20mm-f3-5-slii-canon/","date":"2019-10-13T20:24:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986647517.11/warc/CC-MAIN-20191013195541-20191013222541-00544.warc.gz","language_score":0.7100588083267212,"token_count":207,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__40093451","lang":"en","text":"Voigtlander COLOR-SKOPAR 20mm F3.5 SLII (Canon)\nVoigtlander Color-Skopar 20mm f/3.5 SL II N Aspherical Lens is an ultra-compact, sturdy manual focus lens featuring traditional high-quality Japanese construction and classic styling. The Color-Skopar is a perfect choice as a wide-angle lens for those wanting high performance in a prime all-manual lens. This lens is part of the SL II series, which feature a CPU (Central Processing Unit) built into the lens to support all of your camera’s metering functions as well as control the aperture setting via the camera’s command dial.\n|Lens Mounts||Canon EF,Nikon AI-S|\n|Angle of View||94√Ǭ∞|\n|35mm equivalent||No Data|\n|Maximum magnification||No Data|\n|Box Contents||No Data|","domain":"optical_engineering"}
{"url":"https://www.safetyswitch.in/product/optical-proximity-switch/","date":"2023-05-30T00:22:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644915.48/warc/CC-MAIN-20230530000715-20230530030715-00495.warc.gz","language_score":0.9045777916908264,"token_count":760,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__116401102","lang":"en","text":"Optical Proximity Switch\nOptical Proximity Switches Manufacturers, Suppliers, Exporters & Distributors in India\nBeam of invisible pulsed modulated infra – red light is produced by emitter. This beam is sensed by receiver at another end (in through beam version) or reflected by object and received by receiver placed near emitter (in diffuse version). When this beam is interrupted by object, the receiver signal gets changed and signal is produced.\nOptical proximity switches are used where higher sensing distance is required with non contact operation. The object can be sensed by three methods\nThrough Beam Type\nTransmitter and receiver are enclosed in two separate housings. When they are aligned, light beam travels from transmitter to receiver. Object breaking the light beam causes a change in the receiver. This change is detected and output signal is produced to drive external relay.\nRetro Reflective Type\nTransmitter and receiver are housed in single housing and aligned with the reflector. The beam reflected by the reflector gets back to the receiver. Object breaking the light beam causes a change at the receiver. This change initiates an output signal.\nDifused Reflective Type\nThis is a fixed focused type of switch. Transmitter and receiver enclosed in one housing. Transmitted beam strikes on the object (when the object enters the scanning range) and gets reflected by object surface. Receiver detects these rays and output signal is produced.\nSpecial built in sensitivity adjustment tempot is incorporated to adjust required sensitivity at the site\nColour Mark Sensor\nThese are used to sense dark colour marks on packaging material. Transmitter and receiver are housed in single housing and beam is focused to a spot. In normal condition receiver receives reflected light. When dark register mark is entered, the receiver senses change in signal level. Thus output signal is initiated.\nA special modulating circuit is developed and used in all Powertech optical sensors to make them unique for working in adverse atmospheric conditions.\nManufacturers, Suppliers, Exporters & Distributors of Optical Proximity Switches in India\nType OPS – S consists of separate transmitter, receiver and amplifier relay unit. Supply to the amplifier unit is 24 V DC / 240 V AC. A potentiometer to increase decrease sensitivity. Selector Switch to amplify gain (sensitivity) by 60, 100% and a timer potentiometer to adjust on delay / off delay up to 1 minute are built in features. A relay is activated having contact rating of 2 A resistive at 240 V AC. 50 HZ. We are one of the leading Optical Proximity Switches Manufacturers, Optical Proximity Switches Suppliers, Optical Proximity Switch Exporters and Optical Proximity Switch Distributors in India.\nTechnical Specification :\n|OS T||OS R||OS D||OPS S|\n|Supply voltage||10 – 30 VDC||10 – 30 VDC||10 – 30 VDC||230 VAC|\n|Size / Sensing Range||M 18 : 1mtr.||M 18 : 1mtr.||M 18 : 100mm||M 12|\n|Transmitter||M 30 : up to 5 mtr.||M 30 : up to 5 mtr.||M 30 : up to 1000mm|\n|Receiver||Rectangular||Rectangular||Rectangular||Amplifier unit : panel|\nCorrection factor for various objects\n|Material||White Paper||Black anodized Alu||Metal glossy||PVC||Factor|\n|Wood||1||1.1 to 1.5||1.1 to 1.6||0.5||0.4|","domain":"optical_engineering"}
{"url":"https://www.hunttalk.com/threads/waterproof-dslr-camera-bundle.263871/","date":"2022-10-06T08:06:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337731.82/warc/CC-MAIN-20221006061224-20221006091224-00788.warc.gz","language_score":0.8758674263954163,"token_count":126,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__43701231","lang":"en","text":"Bought this to take to Africa last summer. Less than 100 pictures taken with it. Just too much camera for me.\nPentax K-50 DSLR\n18-55mm zoom lens(w/protective filter)\n50-200mm zoom lens (w/protective filter)\nPaperwork/disc:unfurled warranty card\nBattery/charger/16gb sd card\nInfrared remote control\n2-AA battery adapters for extended trips\nThis camera and all lenses are rugged and waterproof for the outdoors. It is in perfect new condition.","domain":"optical_engineering"}
{"url":"https://mobile-compare.econnex.com.au/go-for-led-why-choose-led-for-your-lighting/","date":"2022-08-11T01:55:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571232.43/warc/CC-MAIN-20220811012302-20220811042302-00245.warc.gz","language_score":0.934124231338501,"token_count":1176,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__130210434","lang":"en","text":"Go for LED: Why choose LED for your lighting?\nLED lighting becomes an essential part of our advanced world and the new trend in lighting technology. It is recommended to use most energy key players and professionals as it is better compared to other lighting’s, but why? As you read this article you will learn the importance and benefits of switching to and choosing LED.\nLet’s get to know more about LED.\nThe basics of LED lighting\nLED stands for Lighting Emitting Diode. It is a type of semiconductor device that emits light rays. How do they work? When an electrical current passes through a microchip which converts electricity into light, the result is visible light.\nThis technology has been around for years and has been widely used for quite some time now as street lights, LED spotlights, rope lights, LED flood lights, and lighting solutions for home and commercial.\nCompared to the standard bulb or halogen light, LEDs\n- Produce light approximately 90% more efficiently than incandescent light bulbs.\n- Are smaller in terms of size, provide unique design opportunities.\n- Consume less energy, resulting in lower utility costs.\n- Are proven to be more durable and reliable as LEDs contain no glass, they are less susceptible to breakage.\n- Last longer. High quality LED lighting last up to 50 times longer than incandescent light bulbs.\n- Do not contain harmful toxins. CFL bulbs contain mercury, which is dangerous to your health when they break.\n- Do not emit UV rays. Long-term exposure to ultraviolet light is not advisable.\n- LEDs emit more Lumens per watt than standard incandescent or fluorescent lighting.\nWhy should you switch to and choose LED\nLEDs use about 50% less electricity than incandescent, fluorescent and halogen lighting. It reduces 70-90% of energy costs compared to a traditional one. LED lights also aim light in a specific direction, which means they emit light in a single direction where fluorescent and incandescent bulbs emit light and heat in all directions. This directional lighting capability reduces wasted light and energy.\nQuality LEDs have an expected lifespan of 30,000-50,000 hours or even longer while a typical incandescent bulb lasts only about 1,000 hours, and a comparable compact fluorescent lasts 8,000 to 10,000 hours.\nIn addition to this, LEDs do not “burn out” or fail, unlike incandescent bulbs which 90% of their energy released as heat. LED does not emit heat the way a traditional bulb does as it has a heat sink, which is a passive device that absorbs the heat produced, this keeps LEDs from overheating and burning out.LED lighting reduces the expenditures of replacing bulbs in commercial and home property.\nCold temperature operation\nLEDs are still working efficiently in the cold, unlike fluorescent bulbs which needed a higher voltage to start at low temperatures. LED performance increases when temperatures drop. This makes LEDs are suitable for refrigerated display cabinets, cases, freezers, and cold storage.\nTraditional lighting usually contains in a glass which vulnerable to damage. On the other hand, LEDs are not using any glass instead they are mounted on a circuit board and connected with soldered leads similar to small electronic devices. LEDs are breakage resistant and free vibrations and other impacts.\nLEDs come on at 100% brightness the time you switched it on compared to most fluorescent and HID lamps that do not provide full brightness the moment they’re switched on. Some requiring three minutes or more to reach the maximum light output. For business and commercial, this can be advantageous during a power outage or any employees open the store during early morning hours when it is still dark outside.\nRapid Cycling and Controllability\nTraditional light sources tend to have a shorter lifespan the more they’re switched on and off while LED’s are semiconductor devices and have flashing light displays capability. It makes LED’s unaffected by rapid cycling and well compatible with daylight sensors and controls. Some LED’s can even be dimmed to 10% of light output while most fluorescent s only reach about 30% of full brightness.\nWhen a LED bulb break, you would not worry about your kids, pet or even yourself as they are mercury free. It also made mostly of metal and plastic rather than glass and a fragile filament which is more harmful when damage. Another thing is, a majority of the power used by incandescent bulbs converted into infrared (IR) or radiated heat. Excessive heat and ultraviolet radiation are a hazard to consumer’s health. LEDs emit no IR and UV.\nLEDs can be combined in any shape to produce highly efficient illumination. It can also be dimmed, resulting in dynamic control of light, color and distribution. Well-designed LED can achieve fantastic lighting effects for the eye, mood, and mind.\nCommon LED colors include amber, red, green and blue. To produce white light, different color LEDs are combined or covered a yellowish material phosphor. Colored LEDs are widely used as signal lights and indicator lights, like the power button on a computer.\nLEDs provide 100 or even up to 200 lumens per watt. In contrast to this, CFLs use about twice the amount of watts and incandescent light bulbs around 10x as much power with only 18-20 lumen per watts.\nLED lights to use less power (watts) per unit light (lumen) generated. It means, they are not just much longer-lasting in lifespan but also lower your electricity consumption.\nChoose LED for your lighting needs!","domain":"optical_engineering"}
{"url":"http://www.foxtenn.com/in&out","date":"2024-04-18T00:34:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00129.warc.gz","language_score":0.9490519165992737,"token_count":200,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__17996955","lang":"en","text":"FOXTENN revolutionizes accuracy by using more than 40 ultra high-speed cameras (2.500 fps), which are capable of generating more than 100.000 images per second. It basically catches everything that happens on the court; anywhere from minute detail to every unthinkable angle.\nPrecision is also guaranteed by the positions of the cameras at the end of the court lines, at ground level, in order to be able to see exactly how the ball bounces as close as possible. Being able to see the ball from the ground allows the system to notice the actual contact of ball's lower curve and the real contact mark on the surface, which is not possible in the case of an elevated camera like the ones being used in the current traditional systems.\nMoreover, FOXTENN uses a high-speed laser scanner system in combination with the cameras in order to track each and every movement the player takes and every bounce of the ball within millimeters, which makes the system incredibly accurate, reliable and unique.","domain":"optical_engineering"}
{"url":"https://www.sathya.in/hi-focus-4mp-33x-ptz-network-camera-hc-ipc-sd3045h","date":"2024-04-19T16:38:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817438.43/warc/CC-MAIN-20240419141145-20240419171145-00253.warc.gz","language_score":0.8824477195739746,"token_count":558,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__77210240","lang":"en","text":"This camera has a 4-megapixel resolution, which ensures clear and detailed video footage.\n33X Optical Zoom\nThe camera is equipped with a powerful 33X optical zoom lens, allowing you to zoom in and out to capture distant objects with high clarity. Optical zoom maintains image quality while zooming.\nThe camera features Smart IR technology, which adjusts the infrared illumination based on the distance to the subject. This ensures that the subject is well-illuminated without overexposing close objects, providing an impressive IR distance of up to 200 meters (656 feet) for night vision.\nOptical Glass Window\nThe camera uses an optical glass window with high light transmittance, which helps maintain image quality by minimizing distortion and loss of light as it passes through the lens.\nIR Anti-Reflection Window\nTo further enhance night vision capabilities, the camera includes an IR anti-reflection window, which increases the transmittance of infrared light, improving the camera's performance in low-light or dark conditions.\nThe camera supports multiple video compression formats, including H.265+, H.265, H.264, and MJPEG. These compression technologies help optimize storage and bandwidth usage.\nEmbedded Smart Algorithm\nThe camera incorporates an embedded smart algorithm, which likely includes features such as motion detection, object tracking, and analytics for intelligent video processing.\nThe camera can simultaneously stream video in three different formats or resolutions, offering flexibility in how the video is transmitted and recorded.\nThe camera allows for a customized On-Screen Display (OSD), which means you can overlay information such as date, time, camera name, or other data on the video feed.\nThe camera conforms to the ONVIF standard, an industry-standard protocol for IP-based security products. This ensures compatibility with various NVRs and VMS systems from different manufacturers.\nInnovative Snow-Removing Functionality\nThis feature is particularly useful in snowy environments. It likely involves a mechanism to prevent snow or ice from accumulating on the camera's lens, ensuring clear visibility in adverse weather conditions.\nEffective Heat Dissipation\nThe camera is equipped with an effective heat dissipation system, which is crucial for maintaining optimal performance, especially in outdoor or high-temperature environments.\nIntelligent Temperature Control\nThe camera features intelligent temperature control technology, which helps regulate the camera's operating temperature, preventing overheating and ensuring reliable operation.\n6 KV Surge Protection\nDesigned for network interface, this surge protection feature safeguards the camera against voltage surges and transient electrical disturbances, helping protect the camera and network equipment from damage.","domain":"optical_engineering"}
{"url":"http://rezautoled.com/cree/64-cree-xm-l-color-wrgb.html","date":"2018-06-20T02:08:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863407.58/warc/CC-MAIN-20180620011502-20180620031502-00089.warc.gz","language_score":0.7376680970191956,"token_count":180,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__157317228","lang":"en","text":"Cree XLamp XM-L color LEDs are the brightest and smallest multi-colored LEDs of their class, delivering red, green, royal-blue and white in one LED at twice the lumens-per-dollar of the MC-E color LED. The LED is 60% smaller than the MC-E LED, reducing the distance between LED die to create a small optical source for excellent optical control, efficient color mixing and simplified design.\n11 Item Items\nWarning: Last items in stock!\n|Size||5 x 5 mm|\n|Maximum Drive Current||1A per LED die|\n|Maximum Light Output||-|\n|Maximum Efficiency||111 lm/W|\n|Typical Forward Voltage||3.1V @350mA (white), 2.25V @350ma (red)|\nBelum ada review dari pelanggan.","domain":"optical_engineering"}
{"url":"http://shotsfired.us/axiocam-mr-49/","date":"2021-01-28T06:03:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704835901.90/warc/CC-MAIN-20210128040619-20210128070619-00230.warc.gz","language_score":0.8542286157608032,"token_count":1004,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__54795350","lang":"en","text":"With AxioCam MR, Carl Zeiss has successfully attained the challenging goal of providing you with optimal camera technology for routine microscopy performance technology that is perfectly tailored to your fields of work and your microscope system. This means that you can focus through your samples smoothly and without perceptible delay. Using a manual microscope, you can therefore generate fluorescence images in AxioVision more economically than ever before. This is certainly a valid requirement as More information. With our camera, troublesome tangled cables are a thing of the past. The high dynamics of 12 bits per color channel allow you to save and process your recordings with maximum gray value resolution and quality. You can easily select and focus segments of the image via the real time online color image.\n|Date Added:||18 February 2006|\n|File Size:||60.89 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nD1 Mid Range Axio Observer. Encoders for Linear Motors in the Electronics Industry Technical Information Encoders for Linear Motors in the Electronics Industry The semiconductor industry and automation technology increasingly require more precise and faster machines in order to satisfy More information.\nMicroscopy & Imaging\nInconvenient switching of cameras and tangled cables are xaiocam thing of the past: For applications in fluorescence microscopy, we recommend the AxioCam MRm monochrome variant — for maximum resolution without color interpolation and without a light-reducing filter mask. Product Information Version 1.\nAxioCam MR offers features that meet these demands at a price that can t be beat. Pixel data metadata Getting the data into the file: The A5D also features positive. Optical Versus Video Magnification Primer Optical Versus Video Magnification Primer Customers have requested additional clarification axiocan true magnifications for inspection needs and quality procedures.\nPlease read the instructions thoroughly.\nZeiss AxioCam MRc Rev 3 Digital Camera\nIf the sxiocam of your application change, or if you wish to adjust key camera parameters, simply connect the camera to your PC. Depending on your requirements choose one of our three AxioCam IC models: Choosing a digital camera for your microscope John C. Zoom Network camera, PoE You can sit back and view your specimens in comfort. The “Zeiss Blue” is a high performer in research and routine areas.\nA1 Vario Axio Vert. How do I grab a single image?\nTo make this website work, we log user data and share it with processors. And to top it all off, the camera set contains special operation software which permits easy capture, processing and saving of the image. With AxioCam MR, Carl Zeiss has successfully attained the challenging goal of providing you with optimal camera technology for routine microscopy performance technology that is perfectly tailored to your fields of work and your microscope system.\nBartels & Stout, Inc.\nLow-intensity fluorescences, living organisms and the finest color graduations— the image quality of the AxioCam MR clearly exceeds that of other monochrome and color CCD cameras.\nOutstanding price and performance AxioCam MR This mid-resolution camera from Carl Zeiss has excellent resolution of x and bit digitization. You can easily select and focus segments of the image via the real time online color image.\nHighlights for biology and medicine High bit dynamics 18 MHz digitization Maximum resolution in x pixels Long exposure times bit color depth Adjustable ROI Region of Interest Adjustable binning Absolutely color-fast images Fast live image Small camera size allows optimal system integration Easy to use without external control box and power supply Vibration-free operation no mechanical cooling fans, shutters or filter wheels Data transmission and power supply via single cable Special features of AxioCam MRm Expanded spectral range High sensitivity for near infrared High-quality fluorescence images, even with rm with extremely low axiocsm intensity bit dynamics plus cooled sensor: The AxioCam ERc 5s microscope camera can be operated via AxioVision in the conventional way, but it also works as a stand-alone imaging station.\nDepending on your requirements choose one of our three AxioCam IC models:. Image acquisition, processing and archiving can be accomplished with only a few simple steps.\nAxioCam HR Low light fluorescence, live cell imaging. Features including our new Color Restoration software, More information.\nPlease read the instructions thoroughly More information. All details with up to 13 megapixels With nine different resolutions you can generate images of the finest cell structures for meaningful presentation. You and your employees will benefit from the color fidelity also displayed on the monitor: The two technologies used kr all document scanners More information.\nThey can also be used for the monitoring.","domain":"optical_engineering"}
{"url":"http://www.3ddentalsystems.com/work","date":"2019-10-15T02:16:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986655735.13/warc/CC-MAIN-20191015005905-20191015033405-00132.warc.gz","language_score":0.8528047800064087,"token_count":711,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__173106019","lang":"en","text":"Real-time “Head Up” Posture for Comfort and Productivity\nPromiseVision 3D™ imaging technology eliminates binocular eyepieces and\nreplaces them with a completely natural, intuitive three dimensional image with\nno loss in magnification, clarity, and illumination.\nDENTAL MICROSCOPES DON'T MEASURE UP\nFor 20 years, dental microscopes have been the “Standard of Care” in Endodontics. Advantages of Dental Microscopes include magnification and clarity, co-axial illumination and the potential for better diagnosis and treatment. But there are disadvantages associated with the binocular eyepieces:\n· Unnatural static head position, leading to fatigue\n· Elevated hand position, leading to fatigue and back strain\n· Elimination of peripheral vision, causing slow transfer of instruments and materials from assistant and wasting time\n· Elimination of peripheral vision, causing reduced patient rapport and patient awareness\n· Very short depth-of-field (typically 3–4mm) leading to frequent fine focus adjustment to inspect treatment and to accommodate patient movements\n· Time lost switching from eyepiece view to direct view due to change of focal distance (from infinity) to 20˝distance and adjustment in light intensity\n· The very bright illumination that assists the endodontist may be uncomfortable for the assistant\nThe NEW STANDARD OF CARE\nPromiseVision 3D™ gives you more by eliminating the challenges associated with binocular eyepieces:\n· Freedom of movement and less fatigue\n· Ergonomically correct posture independent of the instrument\n· Restored peripheral vision for improved productivity\n· Improved patient awareness and rapport\n· Unprecedented depth-of-field (30mm) nearly eliminates fine focus adjustments\n· No lost time when switching from binoculars to a direct view\n· An intuitive 3D image with no learning curve\n· Normal depth perception comparable to a direct view\nThe New Standard of Care for Endodontists and Microscope users\nThe PromiseVision 3D™ system contains many innovative elements, identified in the graphic below. The hybrid combination of advanced electronics and high quality optics make possible the New Standard of Care for Endodontists and Microscope Users.\n1. Powerful Video Processor\nReal-time 3D Vision requires the processing power of 20–50 contemporary PCs to process 10–20 gigabits of video data per second, and the processing must be instantaneous. 3D Vision Systems has developed the first processor design providing this power in such a small, affordable package.\n2. Perfect Ergonomic Position\nAn innovative system configuration always places the 3D monitor and the 3D image in a natural, intuitive position for the dentist. A motorized actuator provides monitor height adjustment, for a perfect ergonomic position and a healthy posture on all operative procedures.\n3. Normal Depth Perception\nAn innovative compact and robust optical system directs images to two HD cameras. Left and right cameras capture the images intended for the left and right eyes–thus eliminating the binocular eyepieces of dental microscopes. The images from the left and right cameras are processed into a 3D image, yielding the depth perception of normal binocular vision.\n4. Unprecedented Depth of Field\nThe optical design also allows a full arch or quadrant to be viewed with 5X+ magnification on the monitor. The optics combined with electronic magnification permit unprecedented depth-of-field.","domain":"optical_engineering"}
{"url":"https://www.everythingabout.net/articles/biology/animals/arthropods/insects/compound_eye.shtml","date":"2018-07-19T13:05:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590901.10/warc/CC-MAIN-20180719125339-20180719145339-00129.warc.gz","language_score":0.9278497099876404,"token_count":138,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__160920768","lang":"en","text":"The eyes of insects and many other arthropods are compound, each composed of up to several thousand individual visual organs called ommatidia. The surface of each ommatidium is a hexagonal lens, below which is a second, conical lens. Light entering the ommatidium is focused by these lenses down a central structure called the rhabdom, where an inverted image forms on light-sensitive retinular cells. Pigment cells surrounding the rhabdom keep light from other ommatidia from entering. Optic nerve fibers transmit information from each rhabdom separately to the brain, where it is combined to form a single image of the outside world.","domain":"optical_engineering"}
{"url":"https://eyerim.com/blog/do-you-wear-strong-diopters","date":"2023-01-27T13:40:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494986.94/warc/CC-MAIN-20230127132641-20230127162641-00730.warc.gz","language_score":0.9261841177940369,"token_count":900,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__271638603","lang":"en","text":"When choosing new glasses, it is important to choose the right refractive index of the lens. A higher index means that the lenses are thinner even if you wear diopters thicker than +/- 2. Glasses with a higher index will be lighter and will not press you so much on the nose. Thin lenses are much more elegant and look better.\nWe will explain this with a simple example:\nAndrew is short-sighted and needs diopters with a power of -2. Matthew is also short-sighted, but needs stronger diopters, with a power of -5. If Andrew and Matthew choose lenses with the same index, Matthew’s will be much thicker than Andrew’s. In order to craft a lens, there must be more material used and it must therefore be thicker and heavier overall. However, a higher lens index changes everything!\nSo that even people with higher diopters can have nice-looking glasses with thin lenses, they can be made with a higher refractive index. Compared to a standard lens, they can be much thinner with the same diopter.\nPlus lenses for correcting farsightedness or partially sightedness tend to be thickest in the middle, while minus lenses for correcting myopia are thickest at the edges. By choosing a higher index, we do not completely remove the curvature of the lenses, which gives them their shape, because it is necessary for them to have a dioptric effect. However, we can significantly influence how they protrude from the spectacle frame.\nChoose the lens index according to the power of the diopter:\n- Index 1.5 - lenses of standard thickness with excellent optical quality, ideal for diopters up to +/- 2.\n- Index 1.6 AS - 30% thinner lenses with aspherical design, which reduces distortion in the periphery at higher diopters. They have very good optical quality, the material provides 100% UV protection, they are 7 times more durable than 1.5 lenses. This index is ideal for diopters from +/- 2.25 to +/- 4.\n- Index 1.67 AS - 40% thinner lenses with aspherical design. They have good optical quality and the material provides 100% UV protection, they are 6 times more durable than a 1.5 lens. This index is ideal for diopters from +/- 4.25 upwards.\nOther materials we can find out there:\n1.53 trivex - extremely resistant lenses to breakage, suitable e.g. for sport-lovers.\n1.59 polycarbonate - ultralight and durable lenses.\n1.74 AS - the thinnest aspherical lenses suitable for diopters over +/- 6.\nWhen you choose glasses on eyerim, you have the opportunity to choose from 3 indexes of lenses in the configurator, which are - from our point of view - the best. They are optically high quality and can cover a wide range of diopters.\nThe higher index of lenses also has its disadvantages:\nA higher refractive index means a lower so-called Abbe number, which determines the overall optical quality of vision and light scattering. In the case of lenses with a high refractive index or in the case of polycarbonate lenses, a number of disturbing reflections are also formed in the material, which can be an obstacle, especially in the case of frameless spectacles. Therefore, we prefer not to offer these lenses.\nOne of the best trade-offs between lens thickness and vision quality is the 1.6 index lens. It can satisfy most wearers who do not have high diopters. At the same time, it also provides high mechanical resistance, which will be appreciated by the wearers of frameless and semi-framed glasses.\nNo worries, we will help you choose!\nIt is good that you are interested in the details of purchasing your new glasses. However, so that you do not have stress when choosing the index, we have decided to choose it for you at least with our glasses from the eyerim collection. We will take into consideration your diopter and frame type. Our partners craft thousands of glasses daily in the optical laboratory.\nYou can really trust our optometrists. We guarantee you not only thin and aesthetic lenses, but also those that will give you the best possible vision.","domain":"optical_engineering"}
{"url":"https://cruzified.net/tags/dxo-optics-pro-9","date":"2021-09-25T19:34:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057733.53/warc/CC-MAIN-20210925172649-20210925202649-00161.warc.gz","language_score":0.9291051626205444,"token_count":146,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__134424552","lang":"en","text":"About DXO Optics Pro 9\nDxO make the standard camera sensor testing software, meaning they're a pretty good authority when it comes to photo software. So it's no surprise DxO Optics Pro ($99 direct) is indeed one of the most impressive pieces of photo software out there, and, since my last review of the software, it's made large leaps forward, particularly in improved organization features and program stability. It tops these off with unmatched image processing: DxO claims the new, unique Prime feature gives you a full extra stop of exposure with no increase in noise level. Even without that, Optics Pro can do wonders for your digital photos—particularly if you shoot in camera raw mode.","domain":"optical_engineering"}
{"url":"https://ritsasv.com/product/0-300v-output-led-tester-led-tv-backlight-tester-multipurpose-led-strips-beads-bar-light-lamp-test-tool-measurement-instruments/","date":"2023-12-11T03:42:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103464.86/warc/CC-MAIN-20231211013452-20231211043452-00116.warc.gz","language_score":0.892440915107727,"token_count":276,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__273659655","lang":"en","text":"Black technology new LED TV tester Features:\nExquisite and compact, the voltage adapts automatically, short-circuit does not burn the lamp beads, and it is easy to test the fault without disassembling the screen, and the quality is stable.\nLED TV screen backlighting issues are becoming more common. With this product, there is no need to remove the screen when testing LED backlights. You can easily find LED strips because you don’t need to disassemble the LED TV to test the LED strips, which can save you a lot of time. This LED light LED backlight tester can find faulty LEDs on the tape with automatic voltage and current regulation in seconds. If there is a problem with the LED strip, you can replace it or replace the bad LED bead. Transformer insulation is protected from heat and cold and protects you from electricity, so you can use it with confidence. Suitable for all series of light panels and light strips, perfect for backlight detection and maintenance tools! It is a great tool for every technician. It can be tested for a long time without damaging the lamp beads.\nInput voltage: AC85V-265V Output voltage: 0-300V Output current: 0-35mA\nThere are 2 testers to choose from, product With 1 Pair Soft Silicone Wire Probe, thanks.","domain":"optical_engineering"}
{"url":"https://www.forth-lighting.com/led-lights-asia2019/","date":"2023-12-10T08:13:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101282.74/warc/CC-MAIN-20231210060949-20231210090949-00486.warc.gz","language_score":0.9633165001869202,"token_count":406,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__39623421","lang":"en","text":"No products in the cart.\nOn 17 September 2019, Lights and LED Asia 2019, an international exhibition took place at Expo Centre Karachi and thrived in full till its final day, 19 September 2019. Exhibitors from China, Turkey, Italy, Germany, Russia, Singapore, UAE, UK, and the USA attended the event. It helped to bring the latest technology to Pakistan in terms of innovative lighting and LED products, generating a vast range of opportunities for companies, distributors, and manufacturers. It was an exclusive platform for the stakeholders, exhibitors presented their products at their booth, to grab the traffic of investors for their companies. Not only the exhibition brought together many national and international companies under one roof, but it also created new business openings for the domestic market of Pakistan.\nVarious Lights And Lighting Equipment\nVarious types of light source products where exhibited by different companies such as solar energy, solar lights, solar lamps, energy-saving lamps, new general lighting bulbs, tungsten-halogen bulbs; various types of radiation sources high-frequency electrodeless lamps; neon lights; light-emitting diodes (LED) various types of transportation (warning Lamp) and signal light. Innovative flashlights, LED flashlights, civil lamps, architectural lamps, industrial and mining lamps, solar lamps, floodlights, indoor lamps, outdoor lighting, and other environmentally friendly lamps were also displayed. Professional lighting and supporting equipment like dimming control equipment and various types of light control devices were also included in the exhibition area.\nForth Lighting Solar LED Lights Booth\nWith hundreds of exhibition booths present at the Karachi Expo at Lights and LED Asia 2019, the exhibition both of Forth Lighting was also present. We provide our customers with the best quality solar lights through Pakistan. We have all kinds of solar LED lights including solar floodlights, solar outdoor lights, and much more. We put our best efforts to provide our customers with excellent quality products which we presented at the exhibition and found the visitors appreciative of us.","domain":"optical_engineering"}
{"url":"http://www.dzoptics.com/en/product2/1/2016/0529/290.html","date":"2017-06-29T07:05:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128323889.3/warc/CC-MAIN-20170629070237-20170629090237-00067.warc.gz","language_score":0.7531407475471497,"token_count":370,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__74470084","lang":"en","text":"KERLEE 1.2/35 lens, specially developed for all lovers of photography,\nis of high performances featuring large aperture, soft Bokeh effect and rich colors.\n|Type||wide angle lens|\n|Aperture：||Manual iris with\" CLICK\" swichable aperture lock|\n|Close focus distance||0.3m|\n|Max magnification||0.12 x|\n|Lens Mounts||Nikon F， Canon EF ， Sony E ，pentax K|\n|Lens image stabilize||No|\n1. Minimum focus distance is up to 0.3.\n2. Optional switchable aperture lock, allowing for smooth adjustment in video mode.\n3. The optimal distance is within 1-5 meters with the best image quality\n4. Smooth focusing feel, appropriate damping and superior experiences.\n5. ED lens effectively improve image/color differences.\n6. It’s globally the first 35mm F/1.2 large aperture lens that supports single-lens reflex full-frame cameras. When taking an image, set the aperture to Maximum f1.2 can conspicuously emphasize the subject on the background, producing a nice picture atmosphere.\n7. Excellent rendering effect in dim light, also enhance shutter speed to complete a shot\nLow dispersion lens\nHigh refractive index lens\nThanks for your high degree of concern to our company and our products. Feeling grateful for your attention of our products, we strive to provide our customers some benefits. From July 1st to July 25th, we are holding a pre-sell activity on Amazon.com.\nYou can go to Amazn.com and search “kerlee lens” or click the following links directly to buy the lens.","domain":"optical_engineering"}
{"url":"https://birminghamcamerainstall.com/shop/security-cameras/s-series-2mp-varifocal-dome-turret-starlight/","date":"2024-04-19T05:05:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817289.27/warc/CC-MAIN-20240419043820-20240419073820-00161.warc.gz","language_score":0.9104159474372864,"token_count":361,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__27501683","lang":"en","text":"When looking at security cameras for your surveillance system at your business or home, there are so many options that it can be confusing. Take the confusion out with this S-Series dome camera with Starlight Technology. This 2MP eyeball dome is IP66 rated and is therefore able to be used both inside and outside! No need to be concerned since this works well in rain, snow, wind, humidity and even temperatures ranging from -4°F to +122°F.\nThe Starlight technology allows the cameras to work in low-lux conditions and produce full color images in the dark even when other cameras have sensed the change in lighting and have switched to monochrome. When not using the Starlight, the built-in LEDs let you see up to 98 feet in total darkness. This S-Series dome uses a 2.8-12mm manual zoom lens that allows you to change the zoom at the camera if you find that your environment changes or you just need to see more detail. You’ll be able to adjust the lens so you can get a wide angled view over a large area or you can zoom in and get a more focused view on people or products.\nThis S-Series camera is ONVIF compliant so it can be paired with other ONVIF products but will work best with other S-Series products available on our website. You have a choice when it comes to powering your camera. You can use a standard 12V DC power supply (which you might have readily available) or, since this camera is PoE compliant, you can power it using PoE (Power over Ethernet). That’s where you plug the camera into a PoE switch or PoE ready NVR and power is supplied using the CAT5 cable.","domain":"optical_engineering"}
{"url":"http://dentalsplanet.com/products.php?product=-Perkin-Elmer-AAnalyst-600-Atomic-Absorption-Spectrometer-With-Computer","date":"2017-04-29T01:34:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123172.42/warc/CC-MAIN-20170423031203-00128-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.6533776521682739,"token_count":257,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__156667114","lang":"en","text":"Perkin Elmer AAnalyst 600 Atomic Absorption Spectrometer With Computer and Software\nAAnalyst 600 Single-beam optical system.\nMonochromator Littrow design with motorized drive for automatic wavelength selection and peaking.\n- Wavelength range : 190-900 nm\n- Diffraction grating : 1800 lines/mm blazed at 236 nm and 597 nm\n- Reciprocal linear dispersion : 1.6 nm/mm (nominal)\n- Focal length : 267 mm\n- Spectral bandwidths : 0.2, 0.7 and 2.0 nm, dual height (AAnalyst 800 only);\nmotorized slit drive for automatic slit selection\nDetector Wide-range segmented solid-state detector, built-in - CMOS charge\nAutomatic 8-lamp holder with built-in power supplies for hollow cathode and electrodeless discharge\nLamp Selection lamps.\nComputer-controlled lamp selection and alignment via WinLab32™ software. Operating\nparameters are automatically set when using PerkinElmer® Lumina™ hollow cathode lamps.\nFlame system (AAnalyst 800)\nGas Controls Fully computer-controlled with oxidant and fuel monitoring.","domain":"optical_engineering"}
{"url":"http://www.brookstone.com/led-lighted-desktop-magnifier?bkiid=Related_Items_Zone%7CProductDetails%7CAccesories%7C830066p","date":"2015-09-04T22:04:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-35/segments/1440645366585.94/warc/CC-MAIN-20150827031606-00334-ip-10-171-96-226.ec2.internal.warc.gz","language_score":0.806486189365387,"token_count":156,"dump":"CC-MAIN-2015-35","global_id":"webtext-fineweb__CC-MAIN-2015-35__0__30042367","lang":"en","text":"Zadro LED Lighted Desktop Magnifier\nMake small print easier on the eyes!\nThe LED Lighted Desktop Magnifier is a premium-quality, LED Lighted, desktop magnifier.\nIt is constructed with a durable, Silver Aluminum lens frame, gunmetal aluminum base, and a high quality glass magnifying lens. The lens diameter is 75mm, with a 5X magnification lens that utilizes 3 super bright LED lights and an auto-off function to conserve battery power.\nSimply press the lens frame and enjoy larger, brighter text.\nCleaning cloth, instructions, and carrying case included.\nRequires two CR2016 Batteries, not included.\nDimensions: 4\" L x 4\" W x 3\" H; 0.45 lbs.","domain":"optical_engineering"}
{"url":"http://bdi.ie/antibody/spr_biacore.html","date":"2017-04-28T12:08:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122955.76/warc/CC-MAIN-20170423031202-00580-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8788543343544006,"token_count":390,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__288039152","lang":"en","text":"Surface plasmon resonance (SPR) and Biacore systems.\nSurface plasmon resonance (SPR) is an optical phenomenon used to measure the interaction of biomolecules. Biacore instrumentation utilises surface plasmon resonance to allow biomolecular interaction analysis in real time without the need for labels. Detection and analysis of bimolecular interactions is of considerable interest across a wide range of research fields including academic, biotechnology and pharmaceutical sectors. The ability to measure these interactions is beneficial for a wide range of applications in particular for both diagnostics and therapeutics.\nDiagram: Surface plasmon resonance-based biosensor\nSurface plasmon resonance occurs when polarised light is passed through a prism and undergoes total internal reflection at a metal surface of a sensor chip and liquid interface. The light energy excites plasmons in the metal surface causing them to oscillate and resonate. As plasmons absorb incident light energy, a decrease in the intensity of the reflected light is observed by the optical detection unit.\nBiacore technology exploits this methodology by using a gold sensor chip immobilised with ligand and passing over analyte in solution. As analyte binds to the immobilised ligand a change in mass at the metal surface occurs. This binding interaction perturbs the resonating plasmons and this change is recognised by the optical detection unit as a decrease in the intensity of reflected light. Biacore instrumentation uses this information to produce sensogram graphs which can provide results and data on the biomolecular interactions of a variety of molecules. Data produced by Biacore technology allows the screening and characterisation of binding molecules, determination of kinetic rates and determination of binding affinity.\nThere is a rich history of antibody-antigen interaction analysis within the BDI including low molecular weight compounds which can be analysed to provide important information for drug discovery and therapeutic development.","domain":"optical_engineering"}
{"url":"https://tianchenlaser.en.alibaba.com/product/1600090418413-810936428/factory_price_High_precision_Closed_Type_Cnc_Fiber_Laser_Cutting_Machine_With_Exchangeable_Table.html","date":"2020-12-03T03:00:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141717601.66/warc/CC-MAIN-20201203000447-20201203030447-00450.warc.gz","language_score":0.8366222977638245,"token_count":923,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__137651744","lang":"en","text":"factory price High precision Closed Type Cnc Fiber Laser Cutting Machine With Exchangeable Table\nClosed Type Cnc Fiber Laser Cutting Machine Description\n1. welded bed structure,Stable performance,could ensure the stable operation of equipment\n2.After 650℃ high temperature heat treatment Machine bed, adopt large Gantry milling accuracy process, ensure machine bed stability and smoothness.\n3.Operating system, man-machine interface, easy to operate\n4.High quality, high efficiency fiber laser producer. low processing cost and energy conservation and environment protection\n5.Servo drive,The structure of the machine tool adopts rack and pinion drive,Ensure equipment high speed , high accuracy, and high reliability\n6. Fast delivery 1kw high power CNC metal sheet fiber laser cutting machine , 300W, 500W, 750W, 1000W, 1500W, 2000W, 3000W, 6000W, 8000W fiber laser power available\n7. Adopts IPG, N-light, RAYCUS fiber laser source brand available\n8. High speed, high accuracy, stable performance, best quality\n9. Support Factory Inspection\nClosed Type Cnc Fiber Laser Cutting Machine Parameters\n3000mm x 1500mm\n4000mm x 2000mm\n6000mm x 2000mm\n6000mm x 2500mm\nMaximum Moving Speed\nRepeated Positioning Accuracy\nClosed Type Cnc Fiber Laser Cutting Machine Product details:\n1.12-16mm heavy plat welding bed:\nMachine bed is welded with 12-16mm thick carbon structural steel dislocation honeycomb structure, machined after stress relief and annealing, then vibration-aging and natural aging treatment, so that the welding and machining stress can be completely eliminated, to ensure excellent rigidity and high precision of the bed, reducing the machining error caused by the vibration of the bed.\n2. Cast aluminum beam:\nThe beam is manufactured according to aviation standards. The aluminum beam has the characteristics of high strength, light weight, corrosion resistance, oxidation resistance, low density and high speed, which improves the overall performance of the laser cutting machine. It helps to increase the speed and acceleration of the laser machine.\n3. Raytools laser cutting head:\nLaser head professional transmission system (linear guide rail, ball screw, sensor head), laser focus adjustment, combined with servo motor drive mechanism, through the automatic sensor to sense the distance of the surface of the metal being cut, and transmit the data to the drive controller;And the data is transmitted to the drive controller: the distance between the follow-up laser head and the cut surface can be kept constant automatically avoiding the cutting accuracy due to the unevenness of the metal surface, and avoiding damage the nozzle and other parts.\n4. Yaskawa servo motor:\nAdopt Japanese Yaskawa servo motor , and the closed-loop control method to ensure accurate positioning and dynamic response of the optimum acceleration, which makes the automatic positioning mechanism run smoothly and reliably, and is maintenance-free.\n5. Touch screen:\nThe touch screen display adopts the UI design of the display and the working table to make the use more intuitive. High definition capacitive touch screen, equivalent to positioning accuracy of ipad.The elegant shape curve fits the body design, and the powerful waterproof and breathable system makes the space breathe and use more smoothly. High definition plasma tempered glass makes the screen more delicate and comfortable to operate.Large display menu layout is simple and intuitive, built-in cutting parameters to improve machining reliability.\nIndependent R&D of forced cooling way, remove the dust for each processing area separately. Simple structure, good effect in sealing exhausting, low energy consumption, improve the dust removal effect in this area, workpiece much better, and also solved the environment pollution, and bring effective protection for operators and machine.\nSamples made by Tianchen Machine Group fiber laser cutting machine above 4000W.\nMachine package with Aluminum plastic film; anti-collision package edge; fumigation-free plywood wooden box and pallets with iron binding belt. Make sure customer machine safety during the shipment.\nTianchen Machine group attend the exhibitions all over the world. We provide advanced laser cutting technology to the world, customers all over the world can get our after-sales service in all aspects.\nTianchen machine Group was foundated in 1995,with high technology and rich experience. Customer all say highly about Tianchen machine quality and service.","domain":"optical_engineering"}
{"url":"https://www.doublewisesolar.com/solar-barge-navigation-light/","date":"2023-12-05T06:44:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100545.7/warc/CC-MAIN-20231205041842-20231205071842-00587.warc.gz","language_score":0.9132717847824097,"token_count":131,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__163031802","lang":"en","text":"3NM Barge Navigation Light\nThe Solar LED Barge Navigation Light DWS305/3NM is specially designed for the navigation safety of the non-powered seagoing vessels such as Barge, Dredger or Tug boats etc.. This LED barge light complies with COLREGS(1972) ,UL 1104 and EN 60945(2002) standards, with a visibility of more than 3 Nautical Miles and an autonomy 120 hours. It has the characteristics of solar self-contained, durable ,anti-UV & easy-installation. The boat signal light can be easily installed on vessels without cable and professional training.","domain":"optical_engineering"}
{"url":"https://xn--vrillisetpiilolinssit-51b.fi/en/collections/eyeling","date":"2024-04-17T15:19:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817158.8/warc/CC-MAIN-20240417142102-20240417172102-00727.warc.gz","language_score":0.9415825605392456,"token_count":180,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__14533283","lang":"en","text":"Eyeling is a luxury brand for your eyes. Eyeling lenses are not mass-produced, but each lens is tinted by hand in a top laboratory in Sweden. With years of experience, the best shades have been selected for use, which bring out the natural beauty of the eyes in the best possible way and make the look deeper and more mysterious.\nEyeling lenses do not have a pupil opening, so you can be sure that even in the brightest lighting, the color of your eyes will look natural and the original color will not show. Even so, the tinted lens does not hinder the field of vision, whether you are far-sighted or short-sighted. For Eyeling, Your eye is the most beautiful, and that's why there are no patterns in the lenses - it's just You and Your new and confident self. Are you ready to receive interested looks and compliments?","domain":"optical_engineering"}
{"url":"https://www.greiche-scaff.com/en/choose-your-lenses/","date":"2023-02-05T01:18:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500158.5/warc/CC-MAIN-20230205000727-20230205030727-00391.warc.gz","language_score":0.9197044372558594,"token_count":1038,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__146451366","lang":"en","text":"A good lens is a lens that adapts to your vision and that suits the use you make of it. Whether you’re in front of a computer all day, outside or in a brightly lit place, a number of parameters should be taken into consideration so that you choose the right lenses for your activities. At Greiche & Scaff, we’re there to advise you.\nThere are four main criteria you should consider before choosing your lenses :\nThe materials (glass, plastic)\nThe type of lenses (unifocal, bifocal or progressive)\nThe treatments (anti-reflective, polarized, etc.)\nThe tints (grey, yellow, etc.)\nPlastic :Lenses made of plastic (or, more precisely, a resin known as CR-39) are much more shock-resistant, more lightweight and tend to fog up less. They also absorb ultra-violet rays. But the surface of this type of lens scratches easily; adding an anti-scratch treatment is advised.\nPolycarbonate :Lenses made from this plastic are shock-resistant and, though thinner than glass or plastic, are the most resistant lenses of all. Because it’s a plastic that’s quite soft, it scratches easily; as with plastic lenses, adding an anti-scratch treatment is advised. These lens are recommended for athletes, children or in cases where ocular protection is critical.\nGlass : This was the first material used to manufacture lenses. Very fragile, prone to fracture and virtually unresisting to impact, the glass is subject to a tempering process to make it more resistant, which also makes it heavier. Today, glass is used in lenses much less frequently.\nSingle vision or unifocal lenses : This lens provides correction only for a given distance. This means that the optical power is the same at every point on the lens’s surface.\nDouble vision or bifocal lenses : This type of lens is used when a person needs two different corrections. The upper surface of the lens corrects distance vision, and the lower, near vision.\nProgressive vision lenses :Progressive optical lenses fulfil the same function as double optical lenses, but use a new type of glass where the boundary line between lens powers is invisible. The result? A much more aesthetically pleasing pair of glasses, and a more functional one, too, because it allows for more seamless vision, and vision in intermediate zones.\nAnti-scratch treatment : This makes the lens harder and more resistant and, most importantly, scratch-proof. This is achieved through treatment by tempering, by centrifugal application, directly during the moulding process or by vacuum evaporation.\nAnti-reflective treatment : Reflections on a lens can create so-called ghost images made up of glare and concentric circles. These obstruct vision and can be annoying. Anti-reflective treatments considerably reduce these effects and increase the amount of light passing through the lens.\nTransitions® Lenses: These are lenses that darken on exposure to specific types of light, most commonly ultraviolet (UV) radiation. Once the light source is removed (for example by walking indoors), the lenses will gradually return to their clear state. They automatically adjust from clear to dark and every shade in between .Transitions® adaptive lenses are the #1 eyecare professional-recommended photochromic lenses worldwide. Everyday lens options include new Transitions® Signature™ lenses, the most responsive lens with full indoor clarity; Transitions® XTRActive® lenses which provide superior darkness outdoors; and the revolutionary Transitions® Vantage™ lenses, the first and only photochromic lenses to darken and polarize outdoors. Transitions Optical’s performance sunwear line includes a range of products customized in partnership with other best-in-class brands. Understanding that the right equipment can provide an advantage, the products are all designed to improve depth perception, clarify colour and increase contrast for specific outdoor activities.reflective light is partially polarized with a filter.\nUltra-violet treatment : True to their name, these lenses are capable of absorbing and blocking ultra-violet rays, which are dangerous for the eyes.\nThese types of lenses are also known as absorbing lenses. Wearers can choose the intensity of the tint for more light transmission, or less.\nGrey tint : This is the most popular tint for sun protection because it doesn’t change the natural viewing of colours.\nYellow tint : Yellow absorbs blue light and can be useful for reducing glare from the sky, for example. It also increases contrasts at nightfall.\nGreen tint : Green absorbs infrared and ultra-violet rays well and is widely used in the military.\nBrown tint : Brown is often used in sunglasses. Like yellow, it absorbs blue light.\nPink tint : Pink is used in situations where indoor lighting is uncomfortable, such as fluorescent lighting and brightly lit work environments. It is often used by people who have had a cataract operation.","domain":"optical_engineering"}
{"url":"http://framcameraclub.org.uk/2016/03/26/samyang-ultra-wide-angle-lenses/","date":"2019-05-24T08:58:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257601.8/warc/CC-MAIN-20190524084432-20190524110432-00067.warc.gz","language_score":0.9541281461715698,"token_count":1069,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__41918447","lang":"en","text":"Samyang have a number of relatively-affordable ultra-wide-angle lenses. This review is about the 14mm f/2.8 intended for full-frame cameras, but much of it applies equally to the equivalent 10mm f/2.8 for DX / APS-C cameras. Performance of the two lenses is similar according to reviews I've read.\nSide note: what is \"normal\", \"wide-angle\" and \"ultra-wide-angle\"\n\"Normal\" or \"Standard\" lenses have an angle of view of 40-60º, which tends to have a natural appearance with many subjects. This corresponds to a focal length of 35-60mm for full frame / 35mm cameras, or 25-40mm for DX / APS-C cameras. A \"normal\" lens gives approximately the same sense of perspective as the human eye. \"Wide-angle\" is typically to describe a focal length of 24-35mm for full-frame, or 16-25mm for DX / APS-C. Wide-angle lenses are good for architecture and landscapes, but tend to make pictures of people look unnatural, as the photographer has to be rather close to the subject. Typical zooms lenses bundled with DSLR cameras cover the range of focal length from wide-angle through \"normal\", usually to medium long focus (i.e. greater focal length than \"normal\").\nUltra-wide-angle is anything below about 24mm for full-frame or 15mm for DX / APS-C. These lenses have an enormously wide angle of view - perhaps 115º - which is great for some subjects such as landscapes or interiors of buildings, but can be unnatural and even disturbing for other subjects. For example, an ultra-wide does not make a great portrait lens:\nThese images above are taken with a full-frame camera for which an 85mm or perhaps 50mm lens might be appropriate for portraits.\nThe two Samyang lenses reviewed here typically cost £270-300 (the Nikon fit 10mm is just over £300), which is a tiny fraction of the price of most ultra-wides. The sharpness and chromatic aberration (CA) are very good at the centre, and fairly good at the edge (better when stopped down a bit). To quote the photozone review (listed at the bottom): \"the Samyang produced nothing short of outstanding resolution figures for a lens in this class\". For both sharpness and CA they are as good as some much more expensive fixed-focus ultra-wides, and better than most ultra-wide zooms. However there are trade-offs:\n- Manual focus only. This is not a severe problem, as ultra-wides have a large depth-of-field, so focus often isn't critical except for very close subjects.\n- Fixed focal length. You expect a good quality zoom at this price?\n- Significant geometric (barrel) distortion and vignetting (the latter mainly at wide aperture). Surprisingly, even these aren't as serious as one might think. Many post processing software packages (including Lightroom and Photoshop) include lens correction profiles that can correct the distortion and vignetting almost completely.\n- Some reviewers have reported getting \"bad copies\" of these lenses. Perhaps the quality control isn't perfect for Samyang lenses; always best to take and check some images after purchasing any lens, and return a lens that isn't up to snuff.\nHere's an example showing the distortion, and the same image with the lens correction profile applied:\nThe Lightroom lens correction profile corrects both the barrel distortion and the vignetting (dark corners of the uncorrected image). Notice that the correction loses very little at the edges. With some lenses, the correction distorts the shape so that it has to be cropped, losing significant areas around the edge.\nEven uncorrected, the goemetric distortion is hardly noticeable unless there are lines parallel to the edges. The sloping verticals left and right in these images of Market Hill are perspective distortion (not lens distortion) as I was pointing the camera down towards the car rear light.\nThese Samyang lenses have such a wide angle of view that they can be tricky to use in sunlight: point one way and the sun is in the image, point the other way and the photographer's shadow is in the image! Yep, that's my shadow bottom-right in the Market Hill shots above.\nHere's one into the light:\nIn this one the sun was in the picture until I cropped some from the top.\nLandscapes can also benefit from ultra-wides: I managed to see the Northern Lights recently, and they filled the whole sky:\nHere are some reviews that I found useful, first for the 14mm:\nKen Rockwell also wrote a review that suggested to me that he hadn't actually used the lens, as some of his comments were nonsense.\nFor the 10mm lens:\nThe 10mm lens has very slightly more barrel distortion, but has a more modern anti-flare coating.\nOverall: good lenses, especially if you use post-processing software that has lens correction profiles. Very good value.","domain":"optical_engineering"}
{"url":"https://thetechinspire.com/canon-m50-mark-ii-review/","date":"2024-02-24T13:55:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474533.12/warc/CC-MAIN-20240224112548-20240224142548-00254.warc.gz","language_score":0.9471745491027832,"token_count":1777,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__124462282","lang":"en","text":"If you’re looking for an entry-level interchangeable lens camera, the Canon EOS M50 Mark II is the camera for you. This camera has 24.1 megapixels and is commonly referred to as the EOS Kiss M2 in Japan. It features a 3.5-inch LCD screen and a simple, yet effective, interface. In addition, it offers a wireless remote and Bluetooth for easy connecting with compatible devices.\nThe Canon EOS M50 Mark II provides a range of image quality settings, including JPEG and RAW. It also lets you choose which file format you prefer for better file size and image quality. There’s also an in-camera JPG file format, which uses the Standard Picture Style and default settings. Both formats have their advantages and drawbacks, but the M50’s Jpegs look much more pleasing than its raw files.\nISO performance is very good on the Canon M50, and it can reach ISO 51,200. The noise results aren’t particularly impressive, but they aren’t terrible. If you’re planning to use the camera in this range, be aware that the camera’s dynamic range is quite limited. As a result, it’s not advisable to shoot at high ISO levels.\nThe Canon M50 II also offers many video recording options, including manual exposure control and Time-Lapse Movie creation. The camera’s LCD monitor can be rotated up to 180 degrees for better viewing angles. It also supports touch gestures. The Canon M50 II’s video recording capabilities make it ideal for vloggers and remote workers.\nThe Canon M50 II has a simple interface. You’ll have access to many controls through the touchscreen and via the up navigation key. You can also adjust exposure using the touchscreen or control dial. The M50 II also features built-in Wi-Fi and Bluetooth.\nWhen it comes to autofocus, the Canon M50 Mark II offers a combination of phase detection and contrast detection pixels. This means that it works well when shooting photos and videos of fast-moving subjects. Its focusing system is also reasonably accurate and fast. Although the camera does not support 4K resolution, its autofocus is good enough for entry-level photographers.\nAnother feature that sets the Canon M50 Mark II apart from many other compact cameras is the addition of eye tracking. This feature can now be toggled on and off through the Info button in Face Tracking AF mode. The previous model did not feature eye tracking and was unable to track the subject’s eyes in portrait mode. The M50 also features a 3.5mm microphone port and Wi-Fi connectivity.\nThe M50 II has Bluetooth connectivity, which means you can connect it to your smartphone or tablet via Wi-Fi. It can also be controlled by the Canon BR-E1 Bluetooth remote. The camera also features an OLED electronic viewfinder. This is a big advantage for outdoor photography, as it eliminates problems caused by harsh light.\nThe menu system on the Canon M50 Mark II is easy to use. It has tabbed menus and a “My Menu” option that makes it easier to use. It also offers customizable buttons, which means you can easily change your most-used settings.\nThe Canon M50 mark II is a digital camera with a compact size and a powerful video recording capability. The M50 was announced by Canon on February 26, 2018, and it went on sale three days later. It features a 3-inch LCD touchscreen and an optical image stabilization system for improved image quality.\nThe M50 II is equipped with a vari-angle LCD touchscreen, a flippy screen, and a movie self-timer that lets you get in position and press the video record button. The camera also supports vertical shooting, a feature that may prove useful for remote workers and vloggers.\nThe Canon M50 Mark II uses an EF-M mount, which allows it to use a reasonably wide range of lenses. Its telephoto lens is a good choice for vlogging. Its lens range is 55-200mm, which is suitable for most video projects.\nAlthough the Canon M50 II lacks a built-in lens stabilization system, it does a great job of stabilizing 4K images. It can also use an EF-M to EF adapter to use standard Canon glass. The camera is also sturdy and has good physical buttons. However, the M50 Mark II’s one big drawback is that it doesn’t have Log shooting capability. In order to shoot in Log mode, you need to select one of Canon’s color profiles. This limitation may be a deal-breaker for some filmmakers.\nAs an added bonus, the M50 Mark II also doubles as a high-quality webcam. It can be connected via USB-C cable to your laptop and is compatible with various video-conferencing services, including Skype. The camera also includes a 3.5mm microphone input for external microphones. Popular external microphones include Rode wireless lavalier mics.\nThe Canon M50 Mark II is a mid-level interchangeable lens camera that can take images up to 24.1 megapixels. This camera is marketed as an entry-level camera for those who do not need professional photo equipment. It is also known as the EOS Kiss M2 in Japan.\nThe camera is designed to be a versatile mid-level interchangeable lens camera, with the ability to shoot in RAW format. This means that it can be used for a variety of photographic applications, from self-portraits to group shots. This camera will also appeal to vloggers and video creators in a single-person setup.\nThe design is aesthetically pleasing. It is compact and ergonomic, with a rounded design throughout most of the camera. There are no sharp edges or corners on the body, which is a pleasant surprise for most users. Another nice feature is the built-in Wi-Fi and Bluetooth. These options make this camera more convenient for interacting with your smartphone.\nThe Canon M50 II features a touchscreen LCD for viewing pictures and video. The camera is also capable of streaming video to YouTube directly. However, you must have a Wi-Fi connection in order to stream video from the camera.\nImage circle size\nThe Canon M50 Mark II is the successor to the award-winning EOS M50. With the growing appetite for content around the world, Canon has stepped up its game with this camera. The demand for content creators is on the rise and shows no signs of slowing down. As a result, more people are exploring hobbies and developing new skills.\nThe Canon M50 Mark II offers a 35mm equivalent lens, making it an excellent choice for low-light situations. Its stepping motor delivers accurate autofocus functionality and a smooth video shooting experience. It also reduces the chance of blurry results when shooting in low-light situations. This camera is also compatible with a wide range of lenses and is a great alternative for pros and hobbyists.\nThe Canon M50 mark II camera is an entry-level mid-range interchangeable-lens camera, featuring 24.1 megapixels. This camera was launched in late 2013 and has already received good reviews. Its price is very competitive, making it an excellent choice for those who want to take high-quality pictures at an affordable price.\nThe M50 II offers a more powerful zoom lens and better image quality, along with a better EVF and a 1.04M-dot LCD. The camera also offers a range of extra features such as focus stacking, focus bracketing, and pre-shooting mode, which records a sequence of frames before the shutter button is fully depressed.\nThe camera comes with a built-in eTTL pop-up flash. It also has a hot shoe for an external flash. Other features include a 3.5mm microphone jack and two USB Micro-B slots. One notable omission is a headphone jack.\nThe camera also comes with an upgraded dual pixel AF system. This autofocus system offers eye tracking in both shooting modes. The M50 Mark II lacks animal and bird eye-AF, but it has eye tracking, which is great for tracking moving subjects. Also, autofocusing is contrast-based during 4K recording, so it is slower than a phase-detection system in 1080p mode.\nThe Canon M50 Mark II is compatible with wireless connectivity, as well as with the EOS Webcam Utility Software. It also has a vertical video recording feature, movie self-timer, touch record control, and can support the Canon Cloud Service.","domain":"optical_engineering"}
{"url":"http://conworlds.fun/cwbb/viewtopic.php?p=21794","date":"2019-06-16T03:10:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627997533.62/warc/CC-MAIN-20190616022644-20190616044644-00060.warc.gz","language_score":0.9331076145172119,"token_count":479,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__72193994","lang":"en","text":"Joined: 23 Jun 2007\nLocation: Bungula Qintaurion, Toliman\n|Posted: Fri Jan 25, 2019 1:45 am Post subject: Odd Abilities Etc. Of Real-Life Organisms Etc.\n|In Scientific American magazine for February 2019, (volume 320 Number 2, the one with “How the Brain Reads Faces” on the cover), in the “Advances” department, there is a one-page “Biomimicry” subdepartment on page 12, that’s entitled “Crustacean Camera”.\nIt’s all about how the mantis shrimp sees polarized light.\nThey’ve (engineers at the Univ. of Illinois at Urbana-Champaign) managed to mimic two of the mantis shrimps’ visual “superpowers”.\nOne is seeing contrasts between two or more different levels of dim light even in the presence of bright light; while still being able to simultaneously see contrasts between two or more different levels of bright light.\nThe other is being able to better detect differences in the way light is polarized.\nThey have discovered that each eye of the mantis shrimp can detect and distinguish polarization in four planes.\nEssentially, if the shrimp happens to look straight up, with its belly towards the north and its back toward the south, some of its ommatids would be seeing just light polarized north-south; some would see only light polarized east-west; some would see just light polarized northeast-southwest; and some would see only light polarized northwest-southeast.\nThey’ve developed a camera that can do similar things to these that the mantis shrimps’ visual system can do, and found out that it can see more clearly in foggy or glare conditions, or monochromatic light, than the human eye can do unaided. They think this might make self-driving cars safer. Or things like that.\nI’m going to link the “Alien Senses” thread to this post.\n\"We're the healthiest horse in the glue factory\" - Erskine Bowles, Co-Chairman of the deficit reduction commission\nI am also eldin raigmore.","domain":"optical_engineering"}
{"url":"https://www.glance24.com/en/news/235/ophthalmic-lenses/","date":"2017-11-25T09:42:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934809746.91/warc/CC-MAIN-20171125090503-20171125110503-00295.warc.gz","language_score":0.8841736912727356,"token_count":400,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__62208857","lang":"en","text":"News » Ophthalmic lenses\nWhat are ophtalmic lenses? The ophthalmic lenses are lenses that are used for the \"eyes,\" that is, they serve to prepare eyeglasses. In essence, the ophthalmic lenses are the vision lenses that are mounted on the spectacle frames. When you realize you do not see us as much good to the naked eye, you should make an appointment with an eye doctor who will determine what is the state of health of our eyes and then, possibly, to issue a prescription, if there was a need to begin to bring a pair of glasses to correct the visual defect that manifested. There are few people who manage to go through the entire span of their lives without ever wear a pair of glasses. Many individuals, especially those in mature age, they must resign to use, at least, a pair of glasses when reading or working at the computer. Glasses that are used to correct the typical visual defect that occurs in mature age: hyperopia, namely, the inability to focus properly objects that are near (reading) or at medium distances (work on PC). The ophthalmologist will be able to recognize these defects by means of modern optical instruments that modern technology makes available and will then be able to issue the recipe that the optician will then follow to pack glasses.\n7 GIORNI DI PROVA\nProva gratis fino a tre paia di\nocchiali a casa per 7 giorni\n100% GARANZIA SODDISTATTI\nLeggi qui le recensioni di chi ha già acquistato.\n24MESI DI GARANZIA\nTutti i prodotti sono fatti in Italia con 2 anni di garanzia.\nInviaci con WhatsApp la tua ricetta al n.ro\nRiceverai subito il tuo preventivo personalizzato.","domain":"optical_engineering"}
{"url":"http://royal-dogs.com/educational/optical-flow-matlab-code.php","date":"2019-02-21T23:59:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247511573.67/warc/CC-MAIN-20190221233437-20190222015437-00183.warc.gz","language_score":0.7994527816772461,"token_count":348,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__70404782","lang":"en","text":"Main / Educational / Optical flow matlab code\nOptical flow matlab code download\nopticFlow = opticalFlowLK returns an optical flow object used to estimate the direction and speed of an . Generate C and C++ code using MATLAB® Coder ™. Real time optical flow, and video processing, with support for camera input in Matlab. royal-dogs.com and-toolbox-on-real-time-optical- or you can compile the code in the folder c- code. This code implements two variations of the paper \"High accuracy optic flow using a theory for warping\" presented at ECCV by Dr. Thomas Brox. Its variants.\n30 Sep Lucas-Kanade Method Example 1. This example uses Lucas-Kanade method on two images and calculate the optical flow field. I developed some C++ optical flow code that can be used in MATLAB during my thesis. I realized that it will be helpful to share this code to the research. Matlab Tutorial. Optical Flow. Gonzalo Vaca- Optical flow or optic flow is the pattern of apparent motion of objects, Optical Flow code. (Download it from.\nOptical Flow. Lucas Kanade Method (matlab) This code includes the basic Lucas Kanade algorithm and Hierarchical LK using pyramids. Please refer to the. Large Displacement Optical Flow Matlab Code. [Download ]. The code High accuracy optical flow estimation based on a theory for warping. In European. 16 Apr This is a function for optical flow in Matlab, using Lucan-kanande/Horn-Schunck optical flow estimation. It includes a sample code and the.","domain":"optical_engineering"}
{"url":"https://peakgeek.com/2012/02/ar-contact-lenses/","date":"2023-03-20T18:59:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943555.25/warc/CC-MAIN-20230320175948-20230320205948-00768.warc.gz","language_score":0.9464244246482849,"token_count":159,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__44097040","lang":"en","text":"Scientists have already managed to create contact lenses that contain a single LED, so it’s no surprise they’re working on increasing that resolution to a more usable level. Due to the obvious tactical advantage in a combat situation, it’s no surprised that DARPA is an active participant in such research, working with Washington-based iOptiks on just such a solution. Eventually, you can expect this to trickle down to the consumer level, which would allow for virtually seamless augmented reality integration into our lives. Until then, expect the AR experience to be first tackled through use of eye glasses such as these. The next decade is going to be exciting for AR, I can’t wait to see how this develops! Read more here.","domain":"optical_engineering"}
{"url":"https://www.lifepositive.com/blog/cure/tint-sunglasses-layoners-tone-sorts-weather-condition-activities","date":"2023-11-28T09:47:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00759.warc.gz","language_score":0.9350137710571289,"token_count":1004,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__29734955","lang":"en","text":"Tint for Sunglasses: Layoners Tone for all sorts of Weather condition & Activities\nEnsuring utmost eye security when you head out under the sun is a primary concern. Putting on sunglasses like Layoners that offer defense to the eyes are available in various colors of lenses.\nWith a wide range of shade and slope options, it can be tough to select which one to get. Selecting the right lens tint is important because it can make the most of the benefits as well as the function of using tones.\nLet's initial go over light exposure for better understanding:\nBefore buying, it's advisable that you understand the different light direct exposure. It can help you make an informed decision.\nUV light is unseen to human eyes. Overexposure can bring about eye and also skin problems like the growth of eye conditions and also skin troubles like skin cancer.\nThere is a common misconception concerning just how darker the colors are the better defense from the UV light. The fact is all high-quality lenses despite shade give 99.9 percent UV light protection.\nSome individuals thought that the darker their tints, the far better defense they have for their eyes. Nevertheless, it is not the tint that protects the eyes yet the finishings put on the lens.\nIR, additionally undetectable, threatens to the human eyes. Those operating in lampwork or welding need top-notch lens tint to protect their eyes.\nVisible light or white light is the light waves that are visible to the eyes.\nBlue light glasses spread readily than any kind of light. Thus it can damage the eyes quickly. Your smartphones and TVs emit this sort of light.\nWhy the need for lens tint?\nNot all lens tints are created equal. Some tints are better in enclosing light than others.\nColors can make colors more vibrant. Others can misshape them. It can boost shade clearness and also vision under numerous problems.\nDifferent Lens Tints:\nRed/ Rose/ Amber.\nRose or red tints enhance comparison by blocking the blue light. It can quicken contrast throughout overcast and warm weather. Nonetheless, it may cause color distortions.\nThe color enhances visual depth. It offers great roadway visibility.\nThese tints are kicking back to the eyes. Individuals who need to use tones for an extended period of time can gain from it.\nIt is suitable to wear when driving, angling, biking, winter sports, snowboarding, snowmobiling, searching, shooting, as well as various other water sports. It is additionally good for those participating in computer games as it prevents eye strain and pain in prolonged use of the computer system.\nThese colors are really fashionable and also offer a calming result on the eyes. It is ideal to decrease the glare, enhance specified contours, as well as increase color perception. People participating in water sports and doing tasks under intense, warm climate must wear this lens.\nMelanin tints are best to protect the aging eyes from sunlight direct exposure. It can also guard people with macular deterioration.\nDark Amber/ Brown/ Copper.\nAmber and Brown colors lessen glare and also get rid of blue light. This is the most effective wear throughout cloudy weather.\nWhen it fends off heaven light, it enhances visual acuity and contrast, specifically against blue and environment-friendly histories. It is best put on when taking a look at the skies as well as grass.\nIndividuals doing golf, hunting, cycling, angling, baseball, skiing as well as water sports should wear these types of colors.\nIt is best to make use of throughout low-light, hazy, and foggy conditions. The color aids enhance vision and make things look sharper both inside your home as well as outdoors.\nThe yellow lens tint is recommended for indoor round sports and snow activities. Both the colors are advised when doing these tasks: interior basketball, handball, racquetball, and also tennis, searching, shooting, winter sports, biking, snowboarding, and also snowmobiling.\nEco-friendly color boosts comparison and also preserves shade equilibrium. This tint can likewise aid filter heaven light as well as reduce the glow. It is best for playing tennis, baseball as well as golf.\nGray color minimizes total brightness and also maintains a one hundred percent regular shade understanding. The neutral tint allows the eyes to see colors in its purest type.\nYou can use this tint under all problems. It can lower eye stress and exhaustion.\nIt is perfect for all outdoor sporting activities under bright light conditions. People who are driving can likewise take advantage of this color.\nBefore looking for sunglasses with lens tint, have a look at Layoners sunglasses that use a vast array of collections of tones that match your activities. If you are energetic in sporting activities, pick photochromic lenses that instantly darken when subjected to sunshine.","domain":"optical_engineering"}
{"url":"https://southwesternoutdoorsman.com/2021/08/29/guide-to-hunting-optics/","date":"2023-12-10T07:45:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101282.74/warc/CC-MAIN-20231210060949-20231210090949-00807.warc.gz","language_score":0.9395836591720581,"token_count":1029,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__64211875","lang":"en","text":"When It comes to hunting in the Southwest you can bet that you will be glassing hills and far off open areas looking for the game that you are pursuing.\nIn this article we are going to over the differences in optics and understanding optics a little better.\nGlassing patience is key you can spend all day looking over the same hill, valley, or ridge over and over.\nWhen it comes to choosing the right Optics for Glassing there are many choices to make from the optic company you want to choose and then what type of Optic you want. From Binoculars to Spotting scopes it may seem that you have unlimited options.\nWhen it comes to choosing the right optic It is really up to your preference and price point. Optics can range any where from 100 dollars all the way up to 3,000 plus dollars. One of the factors that you will want to take in when it comes to purchasing optics is the game you are going for. For example if you are hunting Mountain Goats in the Rocky mountains or the Coyotes of the Sonoran desert you are going to want two different types of Optics. I typically use Riton Optics HD 10X42\nSo What does it mean when the Optics you are looking at say 8×42 or 10×42. It means when you see “8×42”, the first number followed by an “x” is the magnification. So in this example, the binoculars have an 8x magnification and thus it will make whatever you look at through them seem eight times (8x) closer (or larger) than what they would with the naked eye.\nBinoculars with 10×42, 10×65 or even a 10×52 in their name will all magnify the image ten times (10x)\nThe number that comes directly after the magnification when looking at the name on a binocular indicates the size (diameter) in millimeters of the main objective lenses (those are the bigger ones on the end of the binoculars).\nSo using the examples above, an 8×32 binocular has 32mm diameter objective lenses. A 10×42 will also have the same size (42mm) lenses, but with a higher magnification.\nWhilst the 10×32 has 32mm objective lenses and those on the 10×26 are 26mm across.\nThe size of these lenses is important in many ways:\nFirstly it plays a major factor in determining just how physically big the overall instrument will be: the larger the lens, the bigger and heavier the binocular.\nSo why would you want larger lenses?\nWell a good way to think of it is like looking through a window. A larger window lets in more light than a small one.\nThis is the same with lenses: The increased surface area of larger objective lenses means they are able to capture more light and thus play a critical role in determining the brightness or more accurately the low light performance of the binocular.\n|Spotting scopes have only one lens and eyepiece,||Binoculars have two lenses and two eyepieces.|\n|Spotting scopes mostly have high-end magnification,||Binoculars Magnification tend to have a smaller magnification|\n|Spotting scopes pick up from there with magnification levels that most commonly fall between 15x-60x||Magnification typically tops out around 12x|\n|Spotting scopes are great for when you’ve already located your target and they’re not moving much and you want to keep an eye on them. Because you have a very small field of view||With a much larger field of view, binoculars make it easier to locate a target that you saw with your naked eyes|\n|Spotting scopes are best when you need to see something that’s really far away.||These are the best choice when you need something small and lightweight. They’re also best for viewing subjects that aren’t too distant.|\nTo break it down Binoculars are better when you are trying to spot your game off in the distance and then you can use your spotting scope to get a closer look.\nIf you are sheep hunting or hunting in an area where you will be spotting animals in a distances of 1 mile or more such as couse deer hunting in the desert I would suggest using a pair of Binoculars that are at-least 15 power or bigger and then use a spotting scope to get a closer view on the animal and to watch it while you plan your next move to get in shooting range. If you are hunting javalina, predators, or anything under a mile I would suggest not using a spotting scope and using Binoculars with Powers of at-least 10X42 ‘s.\nNow that you have an understanding of Optics head on over to How to Glass to find out how to use your optics and tips and tricks when it comes to spotting your game.","domain":"optical_engineering"}
{"url":"https://www.alexandersalesgroup.com/fiber-optic-sensors/","date":"2021-09-16T18:05:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780053717.37/warc/CC-MAIN-20210916174455-20210916204455-00241.warc.gz","language_score":0.9079511165618896,"token_count":239,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__214679121","lang":"en","text":"FISO is a pioneer in the introduction of fiber optic sensing technologies for medical applications. The company offers the most comprehensive line of fiber optic temperature and pressure sensors for medical devices.\nMiniature Fiber Optic Pressure Transducers\nFISO’s sensors offer significant advantages over traditional solid-state catheters:\n- The diameter of the working length section can be as small as 0.5 French\n- The sensor tip size can be as small as 0.8 French\n- The flexibility of the glass fiber offers excellent deliverability without being prone to kinking like electrical wires\n- The front looking configuration of the sensor tip prevent side-facing/wall bouncing artifacts in the measurement\n- The lack of metallic components provide full immunity to interference from RF, MW and MRI systems.\nDesign of Fiber Optic Temperature Probes, Pressure Sensors and Signal Conditioners\n- Highly experienced engineering team who has been working on dozens of products used in FDA approved devices\n- In-house experts in the electronics, physics, chemistry and optics sectors\n- Quality ensured by a stringent regulatory compliance and the industry best practices\n- Partnerships with world-leading universities, institutes and research centers","domain":"optical_engineering"}
{"url":"https://deep.supplies/video%2Flight-systems","date":"2022-12-03T12:32:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710931.81/warc/CC-MAIN-20221203111902-20221203141902-00719.warc.gz","language_score":0.8857138752937317,"token_count":1457,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__104950975","lang":"en","text":"The C-Vision HD, High Definition Video Recording System from C-Tecnics is a complete package of equipment that allows for the real-time viewing and recording of full high definition camera images onto magnetic hard disk drive, with the addition of a live on-screen display of serial data fields such as GPS data, or ship's survey NMEA data-stream. The system also incorporates two high intensity LED lamps and two laser pointer modules.\nThe C-Vision Nano is a portable video-capture system designed specifically for use with your laptop or portable computer for observing underwater operations. This uniquely developed unit, combined with its easy-to-use video monitoring and recording software, is ideal for a range of diving applications.\nThe C-Vision Nano is available in 1 or 2 channel versions, with LED light control and optional depth monitor.\nThe C-Vision Nano - Rack Mount is a video and communications capture system designed specifically for use with your laptop or portable computer for observing underwater operations. This uniquely developed unit, combined with its easy-to-use video monitoring and recording software, is ideal for a range of diving operations.\nJust install the software, plug in and you’re ready!\nAvailable in 1 or 2 channel versions with LED lamp control and optional depth monitor. Also available in a portable format.\nThe rack mounted version of our proven, reliable portable system. Tailored for fixed installations such as containerised systems, the C-Vision R is available in a range of configurations - up to 4 diver video recording channels and up to 4 communications channels (2 or 4 wire modes), RAW video output and compatible with the C-Tecnics C-DVR Blackbox Recorder.\nThe C-Vision Solo is a superbly engineered video system for both inshore and offshore diving operations. The system allows video monitoring and recording in one easy to operate unit. The core of the C-Vision Solo system is the portable surface control unit, which incorporates video and variable light controls for a diver’s camera and light operated through a waterproof keyboard built into a rugged case.\nAn economical and reliable solution for diver video and communications monitoring; the E-Vision HD, available in single channel or 2 channel splitscreen versions, offers high definition diver video recording and playback from the built in 500GB hard disk drive and LED lamp dimming control. The 15'’ integrated foldable LCD monitor provides a crisp clear, anti-glare display during live video and playback.\nIntroducing the new 2-channel Analogue High-Definition video system - the E-Vision HD-2.\nA robust and easy-to-transport video system with 2 independent diver video channels and LED lamp controllers. Each recording channel also features its own 4-key control pad for quick control commands, such as record, stop and playback.\nA rack mount version of the popular E-Vision system, available with multiple channels. Born from the portable and robust E-Vision video recording system is the E-Vision R - a 19'’ rack mounted unit designed for fixed installations and dive control stations. An economical and reliable system for diver video and communications monitoring; the E-Vision R provides diver video recording and playback from the built in 500GB hard disk drive, LED lamp dimming control and an external audio-in function.\nThe C-Torch is designed to be used within saturation diving systems. Incorporating a Helium relief valve, rugged design and a bright output; this is the torch of choice for use within saturation diving chambers, diving bells and deck decompression chambers.\nThe CT4004 light projects a soft wide angled white light, producing an even illumination to adequately cover the angle of view for C-Tecnics cameras. Utilising one of the latest LED arrays the lamp produces a high light output for minimal power input. It is very rugged having no delicate lamp filaments and is \"over temperature\" protected.\nThe CT4006, or ''C-Lite'', is a compact and robust underwater LED light, designed to withstand pressure depth up to 1000m/3280ft. At 80mm long with a diameter of 30mm, and weighing only 144g, the CT4006 is one of the smallest & most economical LED lights available on the market.\nIntroducing the serial control model CT4011 Underwater LED Light. The control electronics allow control options of dimming the LED lamps via RS232, RS485 or a 0-5V control voltage. In serial control, RS232 or RS485, a preset list of commands allows the user to set individual addresses for each light, set intensity for each light and allows the use of multidrop in RS485 to control up to 16 LED Lights.\nThe CT4012 LED lamp projects a cool white light with wide angle view, producing an equal illumination to effectively cover the landscape angle for C-Tecnics cameras. Utilising one of the latest LED arrays the lamp produces a high light output for minimal power input.\nThe housing can be made with Aluminium, Stainless Steel or Titanium materials which helps to work at various operating depths.\nThis LED powered flashgun measures and emits an ambient light with automatic calculation of the required level of output to produce the correct amount of lighting for quality images. The Flashgun can also be set up manually should this be the preferred method of use.\nThe CT4015 Flashgun is optimally configured for use with the C-Tecnics Digital Stills Camera (CT3022) or C-Tecnics Dual Video and Stills Camera (CT3023), allowing a synchronised 'flash' when the stills are instructed.\nThe C-Laser subsea laser module is a compact, rugged solid state subsea laser that has been designed for a variety of underwater highlighting and identification tasks, or when used in pairs, for scaling and ranging operations. Two or more units can be mounted a known distance from one another and will produce red dots on the targets at an equivalent spacing such that accurate measurements can be taken.\nWith a number of ready-to-deploy and highly capable all-in-one subsea imaging systems available to choose from, we also develop custom-built systems for our broad and growing range of marine applications.\nWith the ability to capture digital stills in 4K and HD plus live HD video, SubC cameras provide industry-leading optics with exceptional value. This attention to detail ensures that our subsea cameras surpass the most crucial integration requirements of ROV, AUVs, Observatories, and more.\nOur high-performance imaging systems are supported by powerful software that allows for unrivalled digital video recording (DVR), live streaming, and annotation. Our extensive solutions can also help you with the storage, management, and organization of your data. .\nLike the rest of the SubC product line, our easily attached LEDs and lasers are software controlled and integrate easily into our camera systems to achieve stunning clarity in even the darkest environments.","domain":"optical_engineering"}
{"url":"https://lumeniquessl.com/2010/05/","date":"2017-04-26T09:46:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121267.21/warc/CC-MAIN-20170423031201-00330-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9484542608261108,"token_count":1050,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__251190621","lang":"en","text":"Teaching new dogs old tricks.\nWhile LEDs are great stuff for optimizing the use of energy for generation of light, they are not immune to the issues of brightness and glare. In application, some of the newer LED products are downright glare bombs. In the over-zeolous pursuit of maxing out efficacy many of the most efficient products get that from lack of optical control. This is great for by-the-numbers evaluation, but can result in some pretty ugly field conditions. Other source using LEDs, have small luminous source areas delivering high light output. The result is an offending brilliance for those unfortunate to be in their focal path.\nThis is an exercise in taking a couple of these new LED dogs to training camp and applying some old tricks to resolve their issues. Since most LED lights and retrofit lamps are configured differently than the conventional sources they replace, grabbing off-the-shelf parts to apply is rarely possible. The combination of luminaos source area, orientation, and package dimensions means fixing any glare issues requires an equally unique approach. This is but the start of a process I intend to pursue, one source at a time if necessary.\nThe Cree LR6\nFor those sensitive to source brightness and in many applications where the proximity of the occupants is such that the aperture of the LR6 is close in hand, their can be a serious issue of glare and brightness. This is the result of this products overly wide distribution and field angles, often promoted as an attribute in generating high vertical surface illuminance. I appreciate the product, and the pitch, but… after living with the LR6 for two years now, it became so much an issue that we stopped turning them on to avoid them. The issue is that any time the viewing angles are shallow, the apparent brightness of the lens in the LR6 is, to put it bluntly, offensive. Even with the Cree accessory lower trims, the brightness from the too-shallow trim and exposed lens is unattractive.\nThe approach taken was simple. First, by encroaching on the lens perimeter a very small amount (about 3/16″), and increasing the depth of the baffle itself, I eliminated the high angle brightness. All light above 25 degrees is simply blocked off. The effect on illuminance in the desired lighting zones below was imperceptable, and measured less than 3% less than no trim at all. I feel the result is a much more comfortable and attractive lighting effect.\nMore can be found at the Lumenique site for Design Sixteen as well.\nThe LR6 without trim or baffles produces very high angle brightness than can be offensive at many viewing angles.\nWith a simple snap-in baffle that reduces the aperture slightly and increases the shielding depth, the high angle brightness is eliminated, resulting in a more attractive and comfortable application\nSeveral LR6 Approaches\nIn the process of experimenting with various approaches to control the brightness from the large source area of the LR6, I also tried some louver designs, like were once used on big R40 lamps, which have the same problem in shallow housings. While these were even more effective in controlling brightness, the loss of total light output was more than I felt necessary. However, in some applications, these may be an even better solution.\nThe baffle is 1 1/2\" deep, snaps onto a lip on the LR6 lens\nThese louvers will be familiar to anyone who has done a church using R40 or R56 lamps. They do a great job of brightness and glare control, but impose a loss of light that is not always desirable.\nThe MR16 Retrofit Lamp\nThe MR16 lamp has always been a little glare grenade. LED versions that make enough light to be considered viable replacements, like the ones here from LEDengine, are just like their halogen forebearers in this regard, and worse. With an optical source size of just 1″, the brightness of the source is really offensive.\nTo avoid cutting into the light pattern, while creating a reasonable cutoff takes a little effort in working out the geometry of a very simple and familiar snoot. Further, since most all retrofit lamps have their own geometry and rarely match conventional lamps, mounting standard MR16 accessories is not an option.\nThe snoot here cuts off all light outside 45 degrees from the furthest edge of the light source. However, the design is also wide enough not to cut into the beam pattern, so applied light levels are not effected. The result is an elimination of glare from most vieing angles, just as this approach has done for halogen lamps of the past.\nThe brilliance of an efficient LED optic can be offensive and distracting if left uncontrolled.\nThe snoot cuts off light outside 45 degrees, eliminating the visibility of the optic, yet retains the main beam angle and most of the field distribution, so lighting effect is the same, just more comfortable to live with.\nNot a new approach, just one designed specifically to this lamp. Unlike the standard halogen lamp, every LED retrofit lamp will need tweaks to the design to suit its unique geometry and optics.","domain":"optical_engineering"}
{"url":"http://www.eyecontactoptometry.com/contact-lenses","date":"2014-04-19T22:13:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00293-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9021777510643005,"token_count":187,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__90415909","lang":"en","text":"Eye Contact Optometry offers the newest innovations in contact lens materials and care systems to provide you with optimum vision correction, comfort, and corneal health. Daily, extended and continuous wear contact lenses are available.\nWe offer a variety of contact lens products\nRigid gas-permeable (RGP)\nMade of slightly flexible plastics that allow oxygen to pass through to the eyes.\nDaily-wear soft lenses\nMade of soft, flexible plastic that allows oxygen to pass through to the eyes.\nAvailable for overnight wear in soft or RGP lenses.\nSoft lenses worn for an extended period of time, from one to six days and then discarded.\nSoft daily wear lenses that are replaced on a planned schedule, most often either every two weeks, monthly or quarterly.\nToric Contact Lenses for Astigmatism\nUniquely designed to meet the special vision correction needs of patients with astigmatism.","domain":"optical_engineering"}
{"url":"https://digital.militaryaerospace.com/militaryaerospace/201707?pg=12&lm=1512310537000","date":"2021-01-22T12:47:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703529331.99/warc/CC-MAIN-20210122113332-20210122143332-00058.warc.gz","language_score":0.905301570892334,"token_count":378,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__237003145","lang":"en","text":"At long last, laser weapons\nare nearing deployment\nBut it was not until the invention of the laser in 1960 that the true\npotential of that concept led to serious research programs, which led\nquickly to major size, weight, and power (SWaP) limitations. Laser is\nshort for light amplification by stimulated emission of radiation.\nIn the decades that followed the construc-\ntion of the first laser prototype at Hughes\nResearch Laboratories in Malibu, Calif.,\nnumerous types of lasers have been devel-\noped, based on a variety of power sources and\nlight generation materials, for a wide breadth\nof applications ranging from barcode scanners\nto cutting and welding in manufacturing, light shows, DNA sequenc-\ning, optical communications, laser printers, and surgery.\nOne of the first potential laser weapons involved using laser beams\nas “dazzlers” to blind opponents temporarily. Still, the narrow gap\nbetween temporary and permanent blinding led an early ban on that\naspect under the Protocol on Blinding Laser Weapons, issued by the\nUnited Nations in 1995. Many governments, however, have used loopholes in the Protocol — or simply ignored it — to develop blinding lasers.\nBY J.R. Wilson\nFrom the mythical burning mirrors of\nancient Greek inventor Archimedes to\nthe Martian death rays of H.G. Wells to\nFlash Gordon’s raygun to Capt. Kirk’s\nphaser, humans have been fascinated\nby the possible use of light beams as\nweapons for at least two millennia.\nOnce the stuff of science fiction, U.S. military laser weapons\nnow are considered the future successors to missiles and\ngun systems to protect military forces from enemy boats,\nunmanned aircraft, ballistic missiles, mortars, and rockets.","domain":"optical_engineering"}
{"url":"https://6k-products.pionier-szkolenia.pl/post/Arkusz+monta%C5%BCowy+Canon+Powershot+Sd600+Digital+Elph+Camera","date":"2023-12-03T17:10:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.42/warc/CC-MAIN-20231203161435-20231203191435-00730.warc.gz","language_score":0.7913780212402344,"token_count":239,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__13731912","lang":"en","text":"The Canon Powershot SD600 Digital Elph Camera is an advanced digital camera that offers an array of features to help users take stunning photographs. It is equipped with a 6.0 megapixel lens, 2.5-inch LCD, 3x optical zoom, and a DIGIC II Image Processor for faster image processing. The camera also includes a range of automatic and manual controls for creative freedom, such as scene modes and shutter speeds. Additionally, the camera provides a variety of shooting modes such as portrait, landscape, and close-up, as well as custom white balance, exposure compensation, and ISO settings. With its robust construction, the Canon Powershot SD600 Digital Elph Camera is a great choice for photographers of all levels who are looking for an exceptional imaging experience.\nOstatnia aktualizacja: Arkusz montażowy Canon Powershot Sd600 Digital Elph Camera\nArkusz montażowy Canon Powershot Sd600 Digital Elph Camera\nBezpośredni link do pobrania Arkusz montażowy Canon Powershot Sd600 Digital Elph Camera","domain":"optical_engineering"}
{"url":"https://www.cmilighting.com/blog/didnt-know-led-lighting/","date":"2024-04-15T15:35:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817002.2/warc/CC-MAIN-20240415142720-20240415172720-00868.warc.gz","language_score":0.948086678981781,"token_count":544,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__143278390","lang":"en","text":"There’s a lot to learn about the emerging and popular technology associated with LED lighting. You’ve likely heard a lot about how they enhance energy efficiency and how they last much longer than other options, but there is still much to know about LED lighting. Check out some of these interesting facts you may not have known about LED lighting.\nHow it Works\nLight emitting diodes, otherwise known as LED lighting, uses an electrical current to pass through a microchip. That microchip is what illuminates the tiny light sources within the LED. Lighting products that use this technology often produce light at about a 90 percent higher level of efficiency than incandescent bulbs. As most bulbs produce heat along with light, LED lighting absorbs that heat into a heat sink rather than emitting it into the atmosphere.\nLED lighting is used in various applications, including general lighting and specific performance-related lighting. While there are LED bulbs available, some lighting fixtures feature a built-in permanent light source. You’ll find LED lighting in office settings, retail stores, homes, performance spaces, theatres, nightclubs, and external signage. In some hybrid options, a nontraditional bulb is used in a uniquely, specially-designed fixture.\nDifference Between Led and CFL\nCompact fluorescent lighting, otherwise known as CFL, is another energy efficient lighting option that is often compared to LED. However, there are some fundamental differences between these two lighting solutions. The first difference is that LED lighting emits light in a specific direction while CFL lighting emits light in all directions. This allows LED lighting to use energy in a more efficient way. LED bulbs can be designed to emit light in all directions, but it needs to be specifically engineered to do so. Unlike LED, CFL light works through an electric current that flows between electrodes at each end of a tube that contains gases. The resulting reaction creates UV light and heat, which is then transformed into visible light when it hits as phosphor coating inside the bulb.\nCOMMERCIAL LED LIGHTING SERVICES FROM CMI\nAre you in need of electric or lighting services for your commercial facility? CMI Companies is here to help! With over 35 years in the industry, CMI has an array of equipment to handle the logistics of any in-house job. We also frequently provide solutions to property managers and upcoming developments. CMI Companies provides services in Mid-Atlantic Region and proudly serves clients in Northern Virginia, Maryland, Richmond, Southern Virginia, Manassas, Prince William County, Fairfax County, Rockville, and Prince George’s County. Also, check us out on Google +, Facebook, Twitter, and LinkedIn.","domain":"optical_engineering"}
{"url":"https://rochesterfamilyvision.com/glasses/benefits-of-buying-glasses-from-us/","date":"2023-02-02T08:49:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499967.46/warc/CC-MAIN-20230202070522-20230202100522-00137.warc.gz","language_score":0.928166925907135,"token_count":835,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__149702700","lang":"en","text":"Here are the benefits you will receive when you purchase new glasses from our optical:\nAt our office you’re treated as a patient, not just a customer who makes a purchase. We’re locally owned and operated. We care about our patients for a lifetime, and we stand behind our products years down the road.\nProfessional “Position of Wear” Measurements\nOur opticians take professional “Position of Wear” measurements of your eyes in the actual frame that is fitted on you in real life. These important measurements include: segment height, vertex distance, pupillary distance, pantoscopic tilt, and frame wrap. These 5 important “position of wear” measurements ensure that you’ll receive precisely crafted lenses that deliver exceptional visual performance. Online glasses retailers have no way of taking these important measurements regardless of how advanced their websites may look virtually. Don’t fall for the misconception that you only need your prescription and PD (pupillary distance) to order glasses. Below is a picture of the measurements that are actually used in your digital lens manufacturing process.\nDigital Lens Design Based on Your Unique Rx\nWe use the latest lens technologies for single vision and progressive lenses that give you the most comfortable and high-definition visual experience. Digital lenses are made-from-scratch and customized based on your unique eye position and eye movements, your prescription power, and the specific frame that is properly fitted on you. Digital lenses are designed by advanced software utilizing millions of calculations, and are manufactured using state-of-the-art equipment. In order to receive 100% of the benefits from digital lenses, professional “position of wear” measurements must be taken because they are vital for the optical calculations in the lens manufacturing process. Don’t settle for basic stock lenses that are manufactured overseas, stocked in a warehouse, and then simply cut to fit into the frame. You deserve the best visual experience possible which can only come from lenses that are digitally manufactured to your unique specifications.\nTwo Year Scratch Warranty on Lenses with Premium Anti-Reflective Coating\nIf you happen to scratch the Anti-Reflective coating on your lenses within 2 years, we simply replace the lenses for free, no questions asked.\nTwo Year Warranty on the Frames Against Manufacturers Defects\nOur premium luxury frame brands such as ic! berlin, Bevel, Entourage of 7, Etnia Bercelona, Bellinger Denmark, and MODO, are made from premium hypoallergenic materials that are lightweight and durable for years to come.\nComplimentary Frame Adjustments and Service\nWe will adjust your frame as many times as you need for as long as you own your glasses. We will also replace missing screws and nose pads for as long as you own your glasses.\nThe Most Advanced Anti-Reflective Coatings\nWe use coatings that offer the most clarity, durability, scratch resistance, harmful blue light protection, and UV protection, so that you can experience the best vision possible through your prescription lenses.\n50% Glasses Replacement Cost\nIf you accidentally break or lose your glasses, we will replace them at 50% of the original cost.\nDoctor Prescription Change\nIf the Rx is not working out for you and our eye doctor makes a change to your Rx, we will remake the lenses at no charge within 90 days of your exam.\nDigital Lens Satisfaction Guarantee\nIf you have difficulty adapting to the new digital lenses within the first 30 days, we will remake the lenses one time at no charge to a different design that may work better. If you wish to upgrade your lenses to include more features, you would only pay the difference for the lens upgrades.\nAn Opportunity to Donate Eyeglasses to Those In Need\nWe believe in giving back to our community here in Rochester and around the world. Therefore we regularly donate eye exams and glasses to individuals who are in need. Thanks to your support we have provided over 5,000 eye exams and over 8,000 pair of glasses at no cost since 2011.","domain":"optical_engineering"}
{"url":"http://www.allmediascotland.com/media-releases/28899/practical-uses-of-visionary-new-technology-to-be-revealed/","date":"2024-02-29T06:03:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474784.33/warc/CC-MAIN-20240229035411-20240229065411-00195.warc.gz","language_score":0.9248413443565369,"token_count":760,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__62948382","lang":"en","text":"WHAT is believed to be the world’s first-ever conference on the use of hyperspectral imaging in the fields of food innovation, science, crime fighting and counter terrorism is to be held in Glasgow next month (April 13 -14).\nSays a spokesperson: “Scotland is leading the way in the development of the technology which collects and processes information from across the electromagnetic spectrum. Unlike the human eye, which is limited to visible white light, hyperspectral imaging can see ultraviolet and infrared.\n“Every object leaves a unique ‘fingerprint’ across the electromagnetic spectrum. These fingerprints are known as spectral signatures and aid the identification of the materials that make up a scanned object”\nSays Kevin Lynch, of Glasgow-based Gilden Photonics: “In nature, the mantis shrimp enjoys hyperspectral vision which enables it to recognise different types of coral, prey and predators, all of which may appear as the same colour to the human eye.\n“We have developed the technology and made it economically viable to be used by a number of industries to identify and measure materials, whether it’s counterfeit alcohol, damaged human tissue or the consistency of a loaf of bread.\n“Hyperspectral imaging has been around for about 15 years but very few people know about its potential. The technology has until recently remained largely untapped.\n“We have built a range of sensors which look at objects using a wide portion of the electromagnetic spectrum. We have used this to build up a major database of known materials which can then be used to compare with samples. A prime example is the detection of counterfeit spirits without contamination of the product or using the spectral signature of oil to help mineralogists find new fields for drilling.”\nNext month (April) the University of Strathclyde, in partnership with Gilden Photonics, is hosting a two day event, between April 13-14th, to highlight the potential uses and practical applications of the ground breaking technology.\n“It is an exciting time to be involved in such a venture” said Professor Stephen Marshall of the University of Strathclyde.\nThe spokesperson continued: “The conference will hear expert evidence of the advantages of using the technology in dentistry, food and drink innovation, agricultural use, homeland defence, crime fighting, entomology and even astronomy.\n“The conference comes just ahead of the official opening of the first-ever Hyperspectral imaging centre at the University of Strathclyde co-sponsored by the University’s Bridging the Gap Initiative and Gilden Photonics, the UK’s leading designer, manufacturer and supplier of cost effective and innovative optical spectroscopy solutions, components, turn-key instruments and OEM components.\n“The centre, the first of its kind in the world, will provide a central location where the basic technology of hyperspectral imaging is available to any and all businesses and researchers.”\nContinued Mr Lynch: “Any industry can approach the centre with any particular problem and we will help with an investigation by bringing their samples to the centre and putting them under the hyperspectral imaging system.\n“Together with experts from the University’s Electronic and Electrical Engineering Department and the Strathclyde Institute for Pharmacy and Biomedical Sciences we then come up with a proof of concept which will hopefully show them that they can get the results they want from using this revolutionary system.”\nMEDIA RELEASE posted by Flag Media. You too can post a media release (aka a press release) on allmediascotland.com. For more information, email here.","domain":"optical_engineering"}
{"url":"https://www.majoropticians.com/eye-care-services/astigmatism/","date":"2024-02-24T02:21:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474482.98/warc/CC-MAIN-20240224012912-20240224042912-00281.warc.gz","language_score":0.924733579158783,"token_count":638,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__149197786","lang":"en","text":"For normal undistorted vision, the cornea should be smooth and equally curved in all directions. When astigmatism is present, the cornea is warped and curves more in one direction than the other. In other words, the cornea is shaped more like the side of a rugby ball than a football where, in one direction, the surface is steeper (more curved) than the other.\nNormally, light enters the eye and is focused precisely on the retina. With astigmatism, the warped cornea causes the light rays to bend improperly depending on where they strike the cornea. They are not refracted (bent) equally in all directions and so one focal point on the retina is not attained. Some light rays are not focused on the retina but are focused in front of or behind the retina.\nThe result of multiple focal points is distorted vision. Objects appear somewhat indistinct and slanted. Vision with astigmatism can be compared to what one sees when looking through a glass bottle, with images appearing too tall, too thin, too wide, or blurred.\nAstigmatism is most often caused by a defect in the curvature of the cornea but may also occur from an unequal bending of light by the lens inside the eye. Astigmatism can occur in conjunction with short-sightedness (myopia) or long-sightedness (hyperopia) and usually remains unchanged through life despite natural changes in the amount of myopia or hyperopia.\nAstigmatism can also result from corneal scars or surgery. Eye surgery may cause the cornea to scar and warp, changing the path of light as it enters the eye. Some patients experience surgically induced astigmatism after eye surgery. Tightly tied sutures can cause a slight wrinkling of the cornea. The patient will experience distorted vision or astigmatism until healing or loosening of the sutures relieves the problem.\nAstigmatism is diagnosed during a routine eye examination. A visual acuity test is performed to determine the unaided ability of the eye to focus light correctly. A process called refraction is used to measure the refractive error of the eye (myopia or hyperopia) and includes specific test to detect measure and correct astigmatism. The final result determines the prescription for corrective lenses that correct myopia, hyperopia and astigmatism as necessary\nA small amount of astigmatism is common and usually does not need correction. However, in cases where the problem is more severe, glasses and contact lenses are used to correct vision. To correct astigmatism, glasses or contact lenses are ground to neutralise the defective curvature of the cornea. Hard or gas permeable contact lenses generally improve astigmatism better than soft contact lenses.\nBut in many cases soft contact lenses can be helpful. As contact lens specialists, Major Opticians are experts in dealing with astigmatism using the full range of options. We specialise in helping patients who have been told they \"can't wear contact lenses\".\nFor a complete examination and professional advice regarding your vision correction needs, contact us to make an appointment.","domain":"optical_engineering"}
{"url":"https://saffronhill.com/portfolio/optasia-medical","date":"2020-09-30T15:52:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402127075.68/warc/CC-MAIN-20200930141310-20200930171310-00722.warc.gz","language_score":0.8644218444824219,"token_count":172,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__251652446","lang":"en","text":"Optasia Medical Boston and Manchester, England\nMedical imaging-based computer assisted detection (CAD) solutions.\nOptasia Medical builds medical imaging-based Computer Assisted Detection (CAD) solutions to help physicians make better decisions. With Optasia Medical’s tools, medical images can be evaluated more rapidly, more accurately and more reproducibly. The Optasia™ platform enables robust model-based vision solutions to automated medical image interpretation problems. With Optasia™, new applications can be developed rapidly for seamless integration into the clinical workflow.\nOptasia Medical is applying the Optasia™ platform to problems in musculoskeletal disease. Specifically, for the analysis of X-ray images in the detection and monitoring of osteoporosis, osteoarthritis and rheumatoid arthritis and the planning and assessment of orthopedic surgery","domain":"optical_engineering"}
{"url":"https://accesscontrol.tech/a-learning-lesson-on-lux-and-lighting-in-surveillance-cameras/","date":"2023-06-09T06:58:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655446.86/warc/CC-MAIN-20230609064417-20230609094417-00562.warc.gz","language_score":0.8992964029312134,"token_count":342,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__87395858","lang":"en","text":"When choosing surveillance cameras, especially in an outdoors setting, selecting cameras that can capture imagery at all the light levels you will experience is critical. Knowing how important this is, in order to select the proper camera first we must determine the Lux rating necessary for the environment that you are intending to place the camera in.\nWhat is lux?\nLux is used as a measure of the intensity specific to the amount of light that hits or passes through a surface (as perceived by the human eye).\nSo to expand upon this in human eye terms below are some common scenarios with the appropriate Lux ratings noted:\n- 0.0001 lux – Moonless overcast night sky\n- 0.002 lux – Moonless clear night sky\n- 0.27–1.0 lux – Full moon on a clear night\n- 50 lux – Family living room lights\n- 80 lux – Office building hallway lighting\n- 100 lux – Very dark overcast day\n- 320–500 lux – Office lighting\n- 400 lux – Sunrise or Sunset on a clear day.\n- 1000 lux –Overcast day\n- 10000–25000 lux – Full Daylight (not direct sun)\n- 32000–100000 lux – Direct Sunlight\nAs a good general guide, anything outdoor that has a less than 1.0 Lux condition would warrant a recommendation to moving over to an Infrared equipped camera. The infrared feature would ensure that all objects are visible.\nThe professional surveillance engineering team at Access Control Technologies has the knowledge and installation experience to ensure that you get the right security cameras for the right situation. We always take the time to review your individual site needs and propose a proper cost-effective solution.","domain":"optical_engineering"}
{"url":"http://irillic.com/nm/advantages-of-fi/","date":"2022-11-26T22:15:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446709929.63/warc/CC-MAIN-20221126212945-20221127002945-00526.warc.gz","language_score":0.8531787395477295,"token_count":161,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__114084753","lang":"en","text":"Fluorescence imaging is a simple and powerful tool to help surgeons visualize\nin real-time lymphatic structures, organ perfusion and vasculature.\nIn fluorescence imaging, surgeons employ an imaging system like the .nm Fluorescence imaging with a contrast dye. The contrast dye is directly administered by the surgeons themselves and the imaging system is used to scan the area of interest to see regions of interest and make necessary and critical decisions.\nAdvantages of fluorescence imaging\nNo use of radioactive contrast dyes\nImaging with high contrast and sensitivity\nLow cost and increased safety\nFaster, more procedures with better results\nUsed directly by surgeons\nNo additional personnel needed\nReal-time imaging allows on-the-table decision making\nCan be repeated multiple times without any harm to patients","domain":"optical_engineering"}
{"url":"https://www.ck12.org/flexi/life-science/microscope/","date":"2023-05-28T06:37:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643585.23/warc/CC-MAIN-20230528051321-20230528081321-00779.warc.gz","language_score":0.9246072769165039,"token_count":132,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__290610564","lang":"en","text":"Select from the frequently asked questions below.\n- A microscope is a tool used to make things that are too small to be seen by the human eye look bigger.\n- Microscopy is the study of small objects using microscopes.\n- Light microscopes use lenses, typically made of glass or plastic, to focus light either into the eye, a camera, or some other light detector.\n- The most powerful light microscopes can make images up to 2,000 times larger.\n- Stained glass from the Middle Ages is often hundreds of years old.\n- Many of these relics are in need of cleaning and maintenance.","domain":"optical_engineering"}
{"url":"https://shilfa.com/africa/scientists-at-the-massachusetts-institute-of-technology-have-built-a-system-that-uses-lasers-to-emit-sounds-to-your-ears-which-no-one-else-can-hear-bgr/","date":"2021-01-26T09:50:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704799711.94/warc/CC-MAIN-20210126073722-20210126103722-00306.warc.gz","language_score":0.9689323306083679,"token_count":376,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__84282963","lang":"en","text":"Hearing someone in a crowded room can be almost impossible due to the propagation of the sound waves, but what if we can design audio with the same precision we can project?\nMIT researchers have developed a system that can do just that, creating a streamlined audio stream that can be shot at the ears of a person in the same way a laser pointer launches a beam of light. It is accurate, safe and can transmit music and even speech to the target without being heard by others.\n\"Our system can be used remotely to broadcast information directly to the ear of someone,\" said Charles Wynn of Lincoln's Laboratory of Massachusetts Institute of Technology. \"This is the first system that uses lasers that are completely safe for the eyes and skin to locate a beep to a person in any environment.\"\nThe system relies on photoacoustics, which is a sound wave resulting from the interaction between light and matter. The team developed a laser system that interacts with water vapor in the air to generate sound along a narrow path between the transmitter and the receiver's ears.\n\"It can work even in relatively dry conditions, because almost always there is little water in the air, especially around people,\" Wynn said. \"We have found that we do not need a lot of water if we use a laser wavelength that is very strongly absorbed by the water. This was the key because stronger absorption leads to more sound. \"\nIn testing, the system works well at a distance of 2.5 meters, using only equipment that is already commercially available, but researchers say it can easily be made even more powerful.\nThe ability to send targeted audio over long distances will obviously have its advantages, especially in emergency situations where background noise can block the ability of a person to hear important information. The team hopes to continue to deal with its system and explore potential applications in the near future.","domain":"optical_engineering"}
{"url":"https://www.secom.co.th/en/products/cctv/","date":"2022-08-12T10:05:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571597.73/warc/CC-MAIN-20220812075544-20220812105544-00649.warc.gz","language_score":0.9285207390785217,"token_count":390,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__152283290","lang":"en","text":"Secom provides high quality CCTVs that meet international standards. The camera can record high-resolution video with high capacity hard disk that allows video to be able to be recorded for a long time.\nWe have various kinds of camera and we will provide the most suitable camera depending on your needs (e.g. budget, resolution, video management system such as face recognition, motion detection, line crossing detection etc.) and your premises physical environment (e.g. your premises structure, location, possibility threat etc.) for the most effective security system.\nAnalog camera system uniqueness is connecting transmission cables from each camera to the recorder. The equipment price is cheaper than IP camera, but the downsides are: limited distance of signal transmission, signal is often disturbed and the system can deteriorate if used for a long time.\nEach IP camera has its own IP Address, it can be connected to the internet at long range. Currently, IP camera is popular among security provider because of its good quality, has many useful functions, it is easy to scale the system and can be used for a long period.\nMostly, lens of CCTV is divided into 2 types. Fixed lens and varifocal lens. Fixed lens have a fixed distance and focal length and it cannot be adjusted. Suitable for capturing the overview of the area. The price is lower than varifocal lens. Varifocal lens can be adjusted according to the distance and to the focal length, allowing you to zoom into an object. The price is higher than fixed lens.\n360°Camera allows you to record everything with a 360 degree panoramic view. It can decrease traditional camera’s blind spots and reduce the cost of installing multiple cameras.\nPTZ camera, or pan tilt zoom camera, is a camera that is capable of remote directional controls and zoom control. With PTZ camera, you can monitor a wide area with only one camera.","domain":"optical_engineering"}
{"url":"https://capitaleyeaustin.com/latest-tech/","date":"2024-03-02T05:29:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475757.50/warc/CC-MAIN-20240302052634-20240302082634-00488.warc.gz","language_score":0.867912769317627,"token_count":577,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__21700572","lang":"en","text":"Your annual trip to the eye doctor is about much more than just renewing your glasses or contact lens prescription. During a comprehensive eye exam, we evaluate our patients’ overall eye health so that we can catch eye diseases and other illnesses in the early stages. Using the most advanced, up-to-date technologies allows us to give the best possible assessment with accurate, repeatable, and efficient diagnoses.\nOptos Daytona Ultra-widefield Retinal Imaging\nThe newest version of the popular Optos, non-dilated retinal exam. Optos’ patented ultra-widefield digital scanning laser technology acquires images that support the detection, diagnosis, analysis, documentation and management of ocular pathology and systemic disease that may first present in the periphery. These conditions may otherwise go undetected using traditional examination techniques and equipment.\nZeiss Cirrus HD-OCT\nOptical coherence tomography (OCT) is a non-invasive imaging test. OCT uses light waves to take cross-section pictures of your retina. With OCT, we can see each of the retina’s distinctive layers. This allows us to map and measure their thickness. These measurements help with diagnosis. They also provide treatment guidance for glaucoma and diseases of the retina. These retinal diseases include age-related macular degeneration (AMD) and diabetic eye disease.\nThe newest technology in obtaining the most accurate, repeatable and efficient prescriptions while providing a new enjoyable process for the patient. The RT-5100 benefits from Nidek’s latest generation of electronic refraction technology. Replacing the standard refractor, it allows practitioners to control the entire refraction process from a small digital keypad.\nIcare ic100 Tonometer\nNo more puff of air! This device uses patented rebound technology to precisely measure intraocular pressure. Its light-weight probe makes momentary contact with the cornea. Icare’s proprietary algorithm coupled with state-of-the-art software allows the device to evaluate deceleration, contact time and other motion parameters of the probe when it touches the cornea.\nNidek OPD Scan III\nThe new OPD-Scan III is an extremely powerful and useful tool for managing all refractive conditions and providing accurate contact lens fitting. The unique OPD-Scan III is an advanced vision assessment system that combines topography, wavefront, automated refractor, keratometry, and pupillometry in a single package. It is the latest device of its kind.\nZeiss Humphrey HFA II-745i\nThe “Gold Standard” in visual field evaluations. The Humphrey® Field Analyzer (HFA™) is the accepted standard of care in glaucoma diagnosis and management and is the device that all major clinical trials utilized and referenced.","domain":"optical_engineering"}
{"url":"https://chem.seu.edu.cn/2015/1103/c34308a377660/page.htm","date":"2024-04-18T01:36:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00237.warc.gz","language_score":0.8226039409637451,"token_count":1614,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__128077185","lang":"en","text":"题目：Polymer/Inorganic Composite Interfaces:\nFrom Plasmonic Sensing to Responsive Cellular Interactions\n主讲人：Prof. Helmuth Möhwald\nMax-Planck-institute of Colloids and Interfaces, Potsdam\nThere have been many developments to fabricate ultrathin polymeric films, but less is known about the interaction of these films with an inorganic support. I will discuss 3 different systems, where the interaction is most important for the function of the film in response to processes on the support.\n1. In cooperation with G. Zhang, Jilin University, a nanoplasmonic surface with a Ag film deposited is designed that is optically transparent and that can be excited by visible light.Field enhancement can lead to enhanced optical or Raman spectroscopic sensing, it can also be used to heat a thermoresponsive polymer film, that then changes wetting behavior. This can also be used to drive fluids uphill.\n2. SiO2 nanoparticles can be decorated with an ultrathin polymer film containing plasmonic Ag nanoparticles in defined distance from each other. Aggregates of these particles then provide contact areas of increased electromagnetic fields, that serve as “hot spots” for enhanced intracellular Raman sensing.This is possible with sensitivity to detect certain diseases. (D.Radziuk, H.M., ACS Nano 9 (2015)2820-2835)\n3. A TiO2 support excited by UV light, sonochemically treated also by visible light, ejects charge carriers, that can be converted into protons in an aqueous or polyelectrolyte environment. The resulting pH change can lead to a change in thickness and elasticity of the polymeric film. This can lead to changes in cell growth and via light this can be guided on a surface.(E.V.Skorb, D.V.Andreeva, H.M. et al. subm.)\nHelmuth Möhwald教授在胶体化学与界面科学领域享有非常高的学术地位和影响力，曾担任欧洲胶体与界面学会主席、德国胶体学会主席以及多个国际著名期刊的主编和编委。Möhwald教授在众多研究领域有很深的造诣，包括仿生科学、界面与胶体科学、受限空间的化学与物理等，已在Science、JACS、Angewandte Chemie、Advanced Materials、Physical Review Letters等刊物发表学术论文910余篇，被引用37000多次，H-因子为96，是世界上他引频率最高的科学家之一。Möhwald教授也获得许多奖项，包括the Overbeek medal of the European Colloid and Interface Society, the Gay-Lussac Award from the French Ministry of Science and Technology, the Wolfgang-Ostwald award of the German Colloid Society，并于2012年当选为欧洲科学院院士。在他的努力推动下，1992年德国马普学会成立了胶体与界面研究所，他曾担任该所的所长。Möhwald教授已经被国内多家单位包括中国科学院北京化学研究所，复旦大学，浙江大学，吉林大学和苏州大学等多所知名大学聘请为客座教授。\nProfessor Helmuth Möhwald is a physicist and physicochemist and received his Ph.D. in physics from Max Planck Institute for Biophysical Chemistry in 1974. He is one of the founding directors of the world-famous Max Planck Institute of Colloids and Interfaces, and since 1993 he served as the director and scientific member at this institute. Prof. Möhwald is a well-known specialist in a wide range of research areas, such as liquid/gas interfaces, biomimetic systems, and chemistry and physics in confined space. He has published more than 910 peer-reviewed publications and his work has been quoted more than 37000 times and his H-index is 96.\nHe is also a highly successful university mentor, and more than 105 former colleagues now occupy professorial chairs in Germany and abroad, in the areas of physical chemistry, applied physics and biophysics, polymer chemistry, material sciences and chemical engineering. He is also honorary professor at the University Potsdam (1995) and the Chinese Academy of Science (2006), guest professor at University Pennsylvania (1983), Zhejiang University (2001), Fudan University (2004), Harbin Institute of Technology (2011) and Soochow University (2011). Dr. Möhwald has served as the Chair of European Colloid and Interface Society (2002-2003) and German Colloid Society (2003-2007).\nHe received numerous awards, such as the Physics award of the German Physical Society (1979), the Overbeek medal of the European Colloid and Interface Society (2007), the Gay-Lussac Award from the French Ministry of Science and Technology (2007), the Wolfgang-Ostwald award of the German Colloid Society (2009), and BP Visiting Lecturer of Cambridge University (2010). In 2012, he was elected Member of the Academy of Europe.","domain":"optical_engineering"}
{"url":"http://all-service.com.ua/catalog/4676-setevoe-oborudovanie/5568-kamery-videonablyudeniya/150192-ip-panasonic-wv-sf538e.html","date":"2017-01-16T10:46:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560279169.4/warc/CC-MAIN-20170116095119-00265-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.7366926670074463,"token_count":619,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__72948364","lang":"en","text":"IP-Камера Panasonic WV-SF538E\nбезнал с НДС: 33583.00\nSuper high resolution at Full HD/1,920 x 1,080 created by 3.1Megapixel high sensitivity MOS Sensor.\n1080p Full HD images up to 30 fps and 360p image up to 30fps simultaneously.\nCropping function enables to provide whole image (1,920 x 1,080) and the part image (640 x 360) simultaneously.\nUp to 4 image capture areas can be specified, and it is also possible to control the sequence.\nPicture in picture function: A cropping image or an alarm image can be added to an image and transmitted.\nMultiple H.264 (High profile) streams and JPEG streams ensure simultaneous real time monitoring and high resolution recording by enhanced “UniPhier®?.\nSuper Dynamic and ABS (Adaptive Black Stretch) technologies deliver 128x wider dynamic range compared to conventional cameras.\nFace Super Dynamic Range technology ensures clear face image.\nHigh sensitivity with Day и Night (Electrical) function:0.5 lx (Color), 0.3 lx (B/W) at F1.3\nUsing Panasonic distinctive LDC (Lens Distortion Compensation) function, natural image without distortion can be monitored though using wide angle lens.\nABF (Auto Back Focus) ensures easy installation.\nDigital Noise Reduction: 3D-DNR ensures noise reduction in various conditions.\nProgressive scan ensures clear images with less motion blur and no tearing even when the subject is moving.\nSuperior color reproduction by primary (RGB) color filter.\nElectronic sensitivity enhancement: Auto (Up to 16x) / OFF\nFixed electronic shutter: Up to 1/10,000 fixed electronic shutter can be selectable.\n3x Extra optical zoom at 360p resolution. (Picture Mode : 2 Mega pixel [16:9] )\nVMD (Video Motion Detection) with 4 programmable detection areas, 15 steps sensitivity level and 10 steps detection size\nFace detection function detects the position of human face and the information is sent by video stream.\nJPEG Image compression ratio can be changed by alarm so that higher quality image can be provided.\nH.264 max. bit rate/client and Total bit rate control allows flexible network traffic management.\nFrame rate priority mode controls bit rate and compression ratio to provide the specified frame rate.\nInternet mode: H.264 images can be transmitted over HTTP protocol.\nMulti-language: English / Italian / French / German / Spanish / Russian / Chinese / Japanese\nIPv4/IPv6 protocol supported.\nSupports SSL, DDNS (viewnetcam, RFC2136)\nStill images (JPEG) can be viewed on mobile phones via the Internet.\nOnvif compliant model\n2.8 ~ 10.0 mm, 3.6x Varifocal Auto Iris Lens","domain":"optical_engineering"}
{"url":"https://www.txamfoundation.com/Fall-2017/Time-Capsule.aspx","date":"2024-04-15T18:14:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817014.15/warc/CC-MAIN-20240415174104-20240415204104-00784.warc.gz","language_score":0.9579465389251709,"token_count":1232,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__13940469","lang":"en","text":"In the 1980s, Charles Munnerlyn '62 revolutionized the optics industry by designing and building the first excimer laser system for vision correction.\nHis family nicknamed him “Dr. Do It.”\n“When you need something done, when there’s a problem in the house, or the sink’s leaking, you call him,” said Rhonda Munnerlyn ’93 in a 2009 video about her father-in-law. “He’s ‘Dr. Do It’ to us.”\nCharles Munnerlyn ’62 is indeed best characterized as a problem solver—of both small and large proportions.\nIn the 1980s, Munnerlyn revolutionized the optics industry by designing and building the first excimer laser system for vision correction. He also developed the core mathematical formula—the Munnerlyn Formula—still used today by ophthalmologists to dictate the amount of corneal tissue to be removed during laser vision correction.\nBefore his technology, corrective options for people with vision disorders such as myopia, hyperopia and astigmatism were unreliable and costly. But now, the procedure he fathered—more commonly known as LASIK—affords millions of people the freedom from wearing eyeglasses while achieving 20/20 vision.\nEye on the Prize\nA native Texan, Munnerlyn grew up in a series of rural towns. He fiddled with telescopes as a child and by his high school days, he was constructing optical instruments and taking photos with telescope-mounted cameras. At Texas A&M University, he enrolled in physics, where only one optics course was offered at the time.\n“I still remember my astronomy and math professor, Jack Kent. We called him ‘cube root Kent,’ because only the cube root of students in his class would pass,” Munnerlyn laughed. “But I learned a lot from him.”\nAfter graduating with a degree in physics in 1962, marrying his wife Judy in 1963, and serving three years in the Air Force, Munnerlyn attended the Institute of Optics at the University of Rochester—the only university in the nation at the time to offer optics studies.\nWith a doctorate in optical engineering in hand in 1969, he embarked on a series of pioneering developments. As head of research and development for Tropel Inc., a company that designed custom lenses for applications such as Xerox copiers, Polaroid cameras and space satellites, Munnerlyn designed the first device to digitally calculate refractive errors in the eye. This autorefractor substantially reduced the time it took optometrists to determine the amount of correction needed for a given patient. In 1979, he also developed an instrument to test pressure in the eye to detect glaucoma.\nIn recognition of the Munnerlyns' generosity to Texas A&M, the Charles R. ’62 and Judith G. Munnerlyn Astronomical Laboratory and Space Engineering Building bears their names.\nIn 1983, Munnerlyn and Terry Clapham, an electrical engineer and longtime friend, began work on an exciting new technology—the excimer laser. It was an alternative to the common but controversial radial keratotomy procedure of the time, in which the surgeon corrected vision by making an incision on the periphery of the cornea—the clear, outermost part of the eye. The pair’s proposed vision correction system instead used ultraviolet rays from an excimer laser to delicately remove tissue from the cornea. Since the laser didn’t generate significant heat, there was no danger of its beams penetrating the eye and damaging the retina.\n“We knew that there had to be a better, safer way to improve vision,” Munnerlyn said. “We just had to prove it. I actually used advanced math from another of Dr. Kent’s courses at Texas A&M to develop the core formula that calculates how much corneal tissue to remove.”\nMunnerlyn and Clapham had been working on the excimer technology while employed by CooperVision. In 1987, they purchased the technology and formed VISX Incorporated with the intention of bringing their product to market. After 10 years of scientific refinement, experimentation overseas and in the United States, millions of dollars in investment and mountains of FDA paperwork, FDA approval for the excimer laser system was granted. Today, VISX—now part of Johnson & Johnson—remains the world’s leading manufacturer of laser vision correction systems.\n“I couldn’t be happier with the worldwide success of the excimer laser method for vision correction,” Munnerlyn said. \"It's extremely rewarding to hear from people who credit LASIK corrective surgery with improving their lives.\"\nIn recognition of his achievements, Munnerlyn is both a distinguished alumnus of Texas A&M and the University of Rochester. He and Judy have given back generously to Texas A&M’s astronomy and physics programs, and have also established two scholarships for the Corps of Cadets and a mechanical engineering scholarship in memory of Charles’ brother, James H. Munnerlyn ’58. In acknowledgement, the Charles R. ’62 and Judith G. Munnerlyn Astronomical Laboratory and Space Engineering Building bears their names.\n“We feel Texas A&M is one of the greatest universities in the world, and we’ve always been excited by its accomplishments in physics and astronomy,” Munnerlyn said. “I’m proud to play a small part in that legacy.”\nFor a man of great vision, Munnerlyn himself was not born with 20/20 eyesight and unfortunately, was not a candidate for LASIK treatment. Only recently has cataract surgery improved his farsightedness—a condition that seems somehow appropriate for an innovator with such foresight.","domain":"optical_engineering"}
{"url":"https://www.sandiegouniontribune.com/military/sdut-navy-unveils-laser-ships-2013apr08-story.html","date":"2019-05-19T22:46:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255182.37/warc/CC-MAIN-20190519221616-20190520003616-00120.warc.gz","language_score":0.9307722449302673,"token_count":298,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__159031130","lang":"en","text":"Weapon tested in San Diego over summer\nSaying that the future is here, and will be affordable in austere times, the Navy on Monday unveiled a laser weapon mounted on a ship.\nThe laser was quietly tested last year on the San Diego-based destroyer Dewey. According to a Navy video, the laser knocked down an aerial drone, sending it into the sea in flames.\nOne Navy official said that the entrance of lasers in naval warfare is akin to the arrival of guns at a knife fight.\nNow, the Navy will deploy the solid-state laser about the floating platform Ponce in fiscal year 2014, two years ahead of schedule.\n“This capability provides a tremendously affordable answer to the costly problem of defending against asymmetric threats, and that kind of innovative approach is crucial in a fiscally constrained environment,” Chief of Naval Research Rear Adm. Matthew Klunder said in a news release.\nThe technology gives sailors new options, including the ability to control a laser weapon’s output. That would allow everything from non-lethal disabling all the way to total destruction.\n“We expect that in the future, a missile will not be able to simply outmaneuver a highly accurate, high-energy laser beam traveling at the speed of light,” Klunder said.\nFollowing the Ponce demonstration, the Navy and Defense Department will continue to research ways to integrate affordable laser weapons into the fleet, officials said.","domain":"optical_engineering"}
{"url":"https://sonnydickson.com/tag/3d-monitor/","date":"2024-04-23T05:22:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818464.67/warc/CC-MAIN-20240423033153-20240423063153-00368.warc.gz","language_score":0.8742015957832336,"token_count":115,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__105869238","lang":"en","text":"Review: Acer SpatialLabs View Series Monitor – Revolutionizing 3D Visual Experience\nUnleashing Immersive Stereo 3D without Glasses\nBy Bruce Green July 11, 2023 1:00 PM\nLet’s take a step back from those dreaded 3D glasses that no one really enjoys wearing. We’ve all experienced the discomfort of those big, bulky frames that never seem to fit properly. But in todays world there’s a way to enter a virtual realm without the hassle of glasses or headsets. Acer has turned this...","domain":"optical_engineering"}
{"url":"https://www.ktosmanagement.com/mirror-not-on-the-wall-but-on-mirror-sunglasses/","date":"2024-02-27T01:02:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474669.36/warc/CC-MAIN-20240226225941-20240227015941-00049.warc.gz","language_score":0.9400876760482788,"token_count":912,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__183867476","lang":"en","text":"Mirror Sunglasses consist of an optical coating on the outside surface of the lenses of the sunglasses. This gives the impression of a mirror to the lenses. Such optical coating is also known as flash coating or mirror coating. These lenses usually have a tint that the wearer can experience. This mirror coating is helpful in further reducing the amount of light that passes through the lens by 10% to 60% more as compared to the other sunglasses. The mirror effect is not visible to the user from inside, only the onlookers can see the mirror. Mirror sunglasses are perfect in every weather condition as well as in sand, snow, water, sports, higher altitudes etc.\nWhy are Mirror sunglasses so called?\nMirror Sunglasses were usually used by the police officials of the United States. Thus, they are also called by the name of ‘’Cop Shades’’.\nMirrored sunglasses contain one layer of a deposited thin film which is made out of suitable metal. This metal coating is responsible for giving mirror effect to the lenses. However, the drawback of mirror sunglasses is that they get scratched easily and also fade away or degrade faster than the other sunglasses. Moreover, they react with the salt-water and may turn rusty or corrosive. This is because the metal film reacts with the salt-water as it is not corrosion resistance.\nNowadays, modern reflecting coatings are highly used in the manufacturing of the mirror sunglasses. This includes a dielectric layer that is made from oxide such as Chromium Oxide, Silicon Dioxide, and Titanium Dioxide etc.\nCan I get Mirror sunglasses with Polarised Sunglasses and Prescription Sunglasses?\nIndeed, you can get mirror sunglasses with polarised or prescription lenses fitted in plastic or metal frames of your choice. Polarised Sunglasses consist of polarised lenses which are effective in harsh and extreme conditions such as while driving on highway, playing watersports or ice sports, fishing, skiing, climbing, etc. Polarised sunglasses with mirror coating on the lens are helpful in protective eyes by providing enhanced protection to the eyes from blinding and strong rays of light, glares and reflections.\nOn the other hand, Prescription Sunglasses with mirror coated lenses consist of lenses which have power strength according to the prescription. In such cases, the lens can be single power or multiple power i.e. varifocal lens. Whether you have nearsightedness or farsightedness, nothing can prevent you from wearing mirror sunglasses as long as you can get the lenses according to your prescription. So whether you need mirror sunglasses with distance power, reading power or both (in case of varifocal glasses), you can easily get as per customisation.\nWhere can I get affordable and attractive mirror sunglasses?\nYour search for mirror sunglasses ends with Specscart that manufactures mirror sunglasses including bespoke prescription sunglasses as well as polarised sunglasses. All you need to do is to search the frame that suits your taste, preference, style as well as facial features and let the Specscart do the rest of the job for you.\nMoreover, the sunglasses from Specscart are able to block 99.77% of the UV rays as well as the glares to provide 30% enhanced vision clarity.\nYou can select a variety of mirror sunglasses online from Specscart, upload your prescription and get the express dispatch within 24 hours whilst sitting at home. Apart from that, you can choose the colour of the lenses too.\nCheck out some of the hottest trending mirror sunglasses from Specscart, that includes designer branded sunglasses from Tom Archer:\n1) Mirrored Cat Eye –\nCat eyes mirror glasses, with pointed angles, set in Acetate material of fram, that can not only grace women’s beauty but also the muscular personality of men. You get the option to customise lens according to colour, polarised as well as the prescription.\n2) Mirror Metal Frame Sunglasses –\nThis full rim, acetate and metal frame mirror sunglasses reflects the pattern of Dalmations can make every women envy with its beauty\n3) Rose Gold Mirror Sunglasses –\nPink sunglasses with mirror coated lenses come in rose gold shade of frame made from acetate and metal makes the wayfarer shape appealing for women.\n4) Mirror Aviator Sunglasses –\nThe lovely aviator mirror sunglasses are everybody’s delight. This silver frame Aviator with silver mirror look amazing on men or women to give elegant yet cool look","domain":"optical_engineering"}
{"url":"https://musky-innovations.myshopify.com/collections/uv-reflex-regular-dawgs","date":"2020-11-26T06:11:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141186761.30/warc/CC-MAIN-20201126055652-20201126085652-00624.warc.gz","language_score":0.9143865704536438,"token_count":142,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__24288066","lang":"en","text":"UV Reflex is an additive put in the lure that allows the bait to reflect more UV light. By reflecting more UV light, the stands out better to the fish. All fluorescent colors reflect UV light better than non fluorescent colors. By adding the UV Reflex, it makes every color become a fluorescent color, thus making the bait stand out more getting noticed and eaten!\nHere are a few insights on UV light: UV light penetrates water up to 10 times further than visible light. Baitfish reflect UV light UV light can even penetrate dark or murky water UV light is given off by the sun and reflected by the moon. The majority of natural light is reflected off the waters surface but UV light penetrates.","domain":"optical_engineering"}
{"url":"https://www.zedlabz.com/products/zedlabz-replacement-screen-lens-plastic-cover-for-nintendo-ds-lite-ndsl-green","date":"2022-11-29T19:43:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710710.91/warc/CC-MAIN-20221129164449-20221129194449-00393.warc.gz","language_score":0.8652337193489075,"token_count":164,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__213296516","lang":"en","text":"ZedLabz replacement screen lens plastic cover for Nintendo DS Lite [NDSL] - Green\n- Replacement plastic LCD lens cover for Nintendo DS Lite consoles.\n- Restore your top screen to a like new condition by replacing your scratched lens cover.\n- Clear plastic protective cover with coloured boarder surround.\n- Front and back protective film protects the lens prior to installation.\n- Brand new and compatible with DS Lite only.\nIf your top screen is scuffed and scratched then you can restore its clarity and appearance by replacing the plastic lens cover with this high quality replacement.\nThis brand new compatible replacement top upper LCD lens cover will fit any Nintendo DS Lite handheld console.\nThe replacement has a plastic film on both sides which needs to be removed before installation.","domain":"optical_engineering"}
{"url":"https://2020wanggong.com/various-types-of-barcode-scanners/","date":"2023-01-28T09:41:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499541.63/warc/CC-MAIN-20230128090359-20230128120359-00217.warc.gz","language_score":0.9450471997261047,"token_count":815,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__258612595","lang":"en","text":"Various Types of Barcode Scanners\nAlmost every industry or organization uses barcode technology today regardless of its size. Barcodes may appear to be a straightforward mixture of strips and spaces, but they’re the important thing to vital product information. To decode these barcodes, special devices like scanners are used. Barcode scanners are photosensors which read the barcodes and convert them into a readable text that is displayed and stored on a pc or laptop. This appears to be a extended process but it just takes few milliseconds.\nBarcode scanners are one of the most widely used tools today. They’re being found in different industries including manufacturing, warehousing, education, healthcare, data capture systems and field service. The high utility aspect and the popularity of the scanners have resulted in the introduction of many varieties.\nBarcode scanner varieties are distinguished by their form factor and their scanning technologies. The main difference in form factors is the amount of operator manipulation required. You will find wand or pen-style scanners, fixed-mount scanners, and handheld scanners. Handheld scanners vary the most in available scanning technology. You will find laser scanners, CCD scanners, which are also known as linear imagers, 2D scanners, also known as area imagers, and omnidirectional scanners. The scanning technology must be chosen on the basis of the application and requirements.\nWand or pen-style barcode readers should be swiped on the barcode at a consistent rate of speed and at a certain angle. This makes them the smallest amount of efficient scanner to utilize, but they’re the smallest amount of expensive. They’re also small, extremely durable, and not limited by the width of the barcode.\nThese scanners read barcodes as they are passed in front of the scanner. They’re widely found in work-in-progress applications and for high-speed sorting along conveyor systems. Smaller models are commonly found in laboratory, security identification, and kiosk applications. Many of these have a laser scan engine, so they should be mounted at a certain angle and distance from the barcodes that may pass in front of them. Unlike others, many of these are usually integrated with other equipment and automation systems.\nThese are also called CCD scanners, CCD LR (long range) scanners, and full array imagers. The scanning technology they employ uses no moving parts, thus making the linear imager scanners stronger than laser scanners, but they do have a shorter reading distance of contact to two feet. Linear imagers are ideal for reading damaged or poorly printed barcodes and for reading barcodes under plastic film or covering.\nLaser scanners are the most used scanning technology in the industry. The brightness and sharpness of laser scanners offer greater preciseness and visibility when targeting a barcode, especially in bright light. These are also for sale in several variations to meet up the wants of special applications, such as long range or high density scanning.\nUnlike handheld linear scanners that really must be prearranged perpendicular to the barcode, omnidirectional barcode scanners can read a barcode regardless of how it’s orientated. Therefore, they increase the scanning process and reduce user fatigue. Omnidirectional scanners are usually found in retail environments and can be found in on-counter and in-counter models. On-counter models are good for applications with limited counter space, such as convenience stores. In-counter models are ideal in high-volume applications, such as grocery stores.\n2D barcode scanners can capture 2D barcodes in addition to 1D, or linear, barcodes. They’re gaining popularity for their versatility and the future-proofing they feature as an investment. These scanners use a mix of digicam technology and software to capture barcodes. They read barcodes omnidirectionally, so the barcodes can be orientated in virtually any direction. Some models can also capture digital images and signatures.","domain":"optical_engineering"}
{"url":"https://www.whirlwire.com/brand/nikon","date":"2021-10-21T00:03:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585353.52/warc/CC-MAIN-20211020214358-20211021004358-00155.warc.gz","language_score":0.9000080823898315,"token_count":3122,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__294519004","lang":"en","text":"The Nikon Z 6 is the company's midrange full-frame mirrorless camera. It features a 24.5MP BSI-CMOS sensor, a hybrid AF system with 273 points and 90% coverage and 5-axis in-body image stabilization. The rugged body is similar in design to the D750/D850 DSLRs and is fully sealed against dust and moisture. It features a 3.68M-dot electronic viewfinder and tilting 3.2\", 2.1M-dot touchscreen LCD. An OLED panel on the top plate displays current shooting settings. Photos are stored on an XQD card.\nThe Nikon Z 7 is the company's high-end full-frame mirrorless camera. It features a 45.7MP BSI-CMOS sensor, a hybrid AF system with 493 points and 90% coverage and 5-axis in-body image stabilization. The rugged body is similar in design to the D850 DSLR and is fully sealed against dust and moisture. It features a 3.68M-dot electronic viewfinder and tilting 3.2\", 2.1M-dot touchscreen LCD. An OLED panel on the top plate displays current shooting settings. Photos are stored on an XQD card.\nThe Nikon Coolpix P1000 superzoom camera has, as of July 2018, the world's longest lens, coming in at 24-3000mm equivalent with a maximum aperture range of F2.8 - F8. The lens features 1 Super ED and 5 ED elements as well as an image stabilization system that reduces shake by up to 5 stops. With the lens extended the camera is 181mm / 7.2\" long and it weights 1.4kg / 3.1 lbs. The camera has a hot shoe as well as flash sync port.\nThe D850 is Nikon's next-generation high resolution, full-frame DSLR. It features a 45.7 Megapixel BSI CMOS sensor with no optical low-pass filter and an Expeed 5 image processor, which allow for fast burst rates and 4K video capture. The D850 has an ISO range of 64-25,000, expandable to 32-120,400 and a burst rate of 7 fps with continuous AF, and 9 fps with the optional battery grip and EN-EL18a/b battery. You'll find the same AF system on the D850 as on the flagship Nikon D5, which means 153 points, of which 99 are cross-type, and the company's effective 3D Tracking.\nThe Nikon D7500 is a midrange DSLR that brings updates to the D7200 and also borrows technology from the D500. It features the 20MP CMOS sensor from the D500, making it capable of 4K video at up to 30fps, and expanding its sensitivity to a maximum of ISO 1,640,000.\nThe Nikon D3400 is the company's entry-level DSLR camera. It's a modest update to the D3300, using the same 24MP APS-C CMOS sensor, EXPEED 4 image processor, Full HD video capture and an easy-to-use interface.\nThe D5 is the latest in the acclaimed series of flagship FX-format professional DSLR cameras. The D5 boasts a myriad of powerful new imaging innovations, including a Nikon-developed 20.8-megapixel CMOS sensor, an all-new 153-point AF system, 4K UHD video capture and EXPEED 5 image processing to give photographers the best balance of performance, precision and low-light ability.\nThe Nikon 1 J5 is a compact mirrorless camera with a more 'retro' design that its predecessor and now has a secondary control dial. It uses a new 1\"-type 20.8MP BSI CMOS sensor with on-chip phase detection. Combined with a new image processing engine (Expeed 5A), this allows the camera to shoot continuously at 20 fps with continuous AF and 60 fps without. Other features include a 3\" touchscreen LCD that tilts upward 180 degrees for 'selfie shooting', numerous special effects, and Wi-Fi with NFC. Video can be recorded at 1080/60p, 720/120p, and 4K/15p.\nThe Coolpix P900 sports a powerful 83x optical zoom (24-2000mm equivalent) NIKKOR ED glass lens with the ability to reach 166x using Dynamic Fine Zoom and a super extra-low dispersion (ED) glass element, making this camera ideal for capturing sharp images and videos from extreme lengths. This feature-packed long zoom is equipped with a 16-megapixel CMOS sensor and a high performance Autofocus (AF) system capable of shooting 7 frames-per-second (fps) to help deliver photos of fast moving sports in superb quality. Sharing these amazing photos has never been easier or more fun, as the COOLPIX P900 allows users to seamlessly shoot and share photos from the camera to a compatible smartphone or tablet via built-in Wi-Fi and NFC connectivity.\nThe Nikon D7200 is an updated version of the venerable D7100. Its design and build quality remains the same but it gains a faster processor, much larger buffer for continuous shooting, improved low light autofocus performance, and Wi-Fi with NFC. Battery life has also gone up by more than 15%.\nFeaturing a 3-inch Vari-angle touch screen, built-in kickstand and front shutter release button, the COOLPIX S6900 is designed to capture fun and flattering self-portraits with ease. Equipped with a 16-megapixel CMOS Sensor, 12x Optical Zoom NIKKOR ED glass lens and 24x Dynamic Fine Zoom, users can take close-up “selfies,” group shots and portraits with extreme detail and accuracy. The camera also includes built-in Wi-Fi with NFC connectivity for easy sharing with friends. Incorporating lens-shift VR technology, camera shake is minimized to ensure sharp images and HD video. Combine the S6900’s target-finding AF and 20 scene modes, users can instantly focus on capturing stunning photos and videos, rather than modifying their settings when the shooting situation changes.\nThe ultra-stylish Coolpix S7000 features the world’s lightest design and is built to impress by combining incredible image quality and performance into an impressively pocketable package. Featuring a 16-megapixel CMOS Sensor, Full HD Video recording with stereo sound, and a 20x optical zoom NIKKOR ED glass lens with 40x Dynamic Fine Zoom, the COOLPIX S7000’s arsenal of features makes a great ultra-slim zoom option for users in need of a capable, yet compact COOLPIX offering. Sharing images can be done at the push of a button with the S7000’s built-in Wi-Fi and NFC connectivity.\nThe Nikon D810A is a specialized version of the regular D810 that has been modified for specific types of astrophotography. The infrared (IR) cut filter has been optimized to allow transmission of the hydrogen alpha spectral line, resulting in four times greater sensitivity of the 656nm wavelength. The resulting images capture the brilliant red hues of diffuse nebulae and constellations in striking detail and fidelity. While not recommended for general photography, the D810A is an excellent option for photographing the universe with either NIKKOR lenses or third-party adaptors for telescopes.\nFeaturing a 16-megapixel CMOS sensor, the COOLPIX AW130 is ideal for capturing stunning images and Full HD 1080p video of life’s extreme adventures. Whether snorkeling, rock climbing or skiing, the waterproof (100ft / 30 m), shockproof (7ft / 2.1 m) and freezeproof (14F / -10C) camera is ready to handle all that Mother Nature throws at it. With built-in Wi-Fi and NFC, users can experience quick and easy sharing of photos and videos by wirelessly connecting their camera to a compatible smartphone or tablet, even in remote locations.\nThe S2900 offers an effective pixel count of 20.1-million pixels, and is equipped with a 5x optical zoom NIKKOR lens that covers the wide-angle 26 mm to telephoto 130 mm angles of view (equivalent focal lengths in 35mm  format) and utilizes Dynamic Fine Zoom to increase zoom capability up to approximately 10x, all in a slim body with a depth measuring approximately 19.8 mm.\nThe L32 is a model that offers simple operation and superior image quality with an effective pixel count of 20.1-million pixels and a 5x optical zoom NIKKOR lens that covers a broad range of focal lengths, from the wide-angle 26mm to the telephoto 130mm (equivalent angles of view in 35mm  format).\nThe S3700 has an elegant, compact body with a depth of approximately 20.1 mm. It offers an effective pixel count of 20.1-million pixels, and is equipped with an 8x optical zoom NIKKOR lens that covers the wide-angle 25 mm to telephoto 200 mm angles of view (equivalent focal lengths in 35mm  format), and utilizes Dynamic Fine Zoom to increase zoom capability up to approximately 16x.\nThe L31 is a model that enables reliable, worry-free automatic shooting. It offers an effective pixel count of 16.1-million pixels, and is equipped with a 5x optical zoom NIKKOR lens that covers a broad range of focal lengths, from the wide-angle 26mm to the telephoto 130mm equivalent.\nThe Nikon D750 borrows features from the D810 and marries them with a 24MP sensor, offering a faster frame rate than any non-professional full-frame Nikon DSLR since the D700. Aimed squarely at enthusiasts and full-frame upgraders the D750 boasts a comprehensive video and still photography specification which includes a tilting rear LCD screen and (on paper) an improved version of the 51-point AF system found in the D810 and D4S.\nThe Nikon D810 is a full-frame digital SLR that features 36.3 megapixel FX-format CMOS sensor (without an optical low-pass filter) along with Nikon's latest EXPEED 4 image processing engine. The EXPEED 4 improves performance and image quality and also offers an ISO range of 64 to 12800, which expands to 32 to 51200. There's also a new RAW Small Size option, which produces 16MP images with much smaller file sizes. The shutter mechanism has been redesigned and a first curtain electronic shutter added in order to reduce the risk of 'shutter shake'.\nThe Nikon 1 S2 is a compact, inexpensive interchangeable lens that uses the company's 1 System (CX-format) lenses. It features a 14.2MP CMOS sensor and ultra-fast hybrid AF system, allowing for 20fps continuous shooting with autofocus.\nThe Nikon 1 J4 features an 18MP CX-format sensor, an improved Hybrid AF system with 105 phase detect points across nearly 100% of the frame, 20 fps burst shooting with continuous AF and Wi-Fi. With the Expeed 4 processor and advanced AF system, the J4 is capable of burst shooting at 20 fps with continuous autofocus (and 60 fps without).\nThe Coolpix P340 is Nikon's latest pocket enthusiast camera that now includes built-in Wi-Fi. It features a large 1/1.7\", 12.2-megapixel BSI CMOS sensor, full manual controls (P, S, A, M) and Raw image capture. The P340 has a versatile 5x (24-120mm equivalent) wide-angle to telephoto zoom range plus 10x Dynamic Fine Zoom and a fast F/1.8 maximum aperture lens with Lens Shift VR image stabilization.\nThe Nikon Coolpix P530 is an update to the P520, offering a 16.1MP BSI CMOS sensor. It's a bridge-style camera with a 42x optical zoom range (24-1000mm equivalent), and provides automatic as well as manual and automatic exposure modes. The camera has a 3-inch LCD and electronic viewfinder. It provides Wi-Fi connectivity by way of Nikon's optional WU-1a Wireless Mobile Adapter.\nThe bridge-style Nikon Coolpix P600 camera features a 24-1440mm zoom lens with lens-shift vibration reduction and a 16MP BSI CMOS sensor. It offers built-in Wi-Fi, letting you wirelessly share your photos to an Android or iOS device. The P600 will let you have full control with P, S, A, M modes or full auto and scene modes for quick snapshots. The P600's scene modes also include two new modes: new Moon and Bird Watching.\nThe Nikon Coolpix S32 is a family-friendly rugged camera that features a 13.2-megapixel CMOS sensor, a 2.7-inch LCD display and 30-90mm equivalent lens. It's waterproof down to 10m (33ft) and shockproof from a height of 1.5m (5ft).\nThe AW120 features a 16-megapixel CMOS sensor, a 3-inch OLED screen and a wide angle 24-120mm equivalent image stabilized zoom. It's waterproof down to 59ft (18m), shockproof from a height of 6.6ft (2m) and freezeproof down to 14°F (-10°C). It also comes with built-in Wi-Fi for wireless transfer and GPS with an electronic compass and mapping. The AW120 also features Nikon’s Action Control function that allows easy operation with gloved hands.\nThe D3300 makes it fun and easy to preserve those moments in the lifelike beauty they deserve: stunning 24.2-megapixel photos and 1080p Full HD videos with tack-sharp details, vibrant colors and softly blurred backgrounds.\nThe timeless style of Nikon's milestone cameras comes together with our cutting edge imaging technology in the new Nikon Df. The camera features a 16.2-megapixel FX CMOS sensor and the EXPEED 3 image processing engine with an ISO range of 100 – 12800, so you can capture stunning full frame images of exceptional quality every time - all from a camera that is equally exceptional in style and design.\nWith the innovative functions and amazing performance of the new Nikon 1 J3, you can now easily create your own picture moments. Lightning-fast operation and minimalistic design come together in perfect harmony. Offering 14.2 megapixels and high-speed autofocus, the Nikon 1 J3 lets you capture photos with incredible depth and details.\nFive eye-catching hues that complement the camera's minimal design will add a splash of color to your daily life. Perfect for any occasion, you will want to take it with you, everywhere you go. Lenses also come in the same five colors so you can express yourself even more creatively.","domain":"optical_engineering"}
{"url":"https://www.n2n-group.com/veriphi-cctv-cameras","date":"2024-04-16T13:57:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817095.3/warc/CC-MAIN-20240416124708-20240416154708-00020.warc.gz","language_score":0.9379509091377258,"token_count":140,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__164880507","lang":"en","text":"VeriPhi CCTV cameras are high quality IP CCTV cameras with resolution up to 4 Megapixels. Complying with ONVIF standards cameras support H.264 as well as H.265 compression protocols.\nA full range is available to choose from based on the resolution, indoor or outdoor, standard or rugged tamper-proof, dome, pendant, wall mounts as well as bullet cameras.\nVeriPhi cameras come with the latest generation CMOS pickup sensors providing high quality video upto 4K resolutions. They support WDR functionality, AFC as well as analytical alerts for fogging, blurring, video loss etc.","domain":"optical_engineering"}
{"url":"https://muzikinisrusys.lt/ibiza-light","date":"2021-01-17T17:49:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703513144.48/warc/CC-MAIN-20210117174558-20210117204558-00496.warc.gz","language_score":0.7643790245056152,"token_count":438,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__186126665","lang":"en","text":"Compact-sized haze machine that fills the space with subtle particles. As haze is lighter and has less density than fog, it increases the visibility and quality of the light beams. Suitable for small concert halls and venues, bars, clubs, etc. The machine can run continuously and offers an energy sa..\nExtra large police light fitted with numerous hi-brite LEDs creating a 360° rotating effect.\nFitted with numerous bright LEDs\nAdjustable flash speed\nPower supply: 220Vac\nDims.: 160 x 155 x 179mm\nPower 200mW, wave length 650nm, DPSS diode\nBeautiful red laser colour\nHigh precision micro-step N1.8 scanner motor\nOperating modes: Sound activation, auto or DMX (Master/Slave)\nThermo-electric air cooling system\nPower supply: 220-240V AC, 50/60Hz\nDual laser fitted with 2 x 2 red & green lenses that generate more than 128 laser patterns.\n8 x DMX channel: Selection & dimension of the patterns, strobe, dots and lines, vertical & horizontal move\nColours : Red & green (4 lenses)\nOperating modes :..\nHigh volume bubble machine that due to its dual wheels fills your premises twice as fast as a normal machine.\nSupplied incl. remote control to regulate the bubble output\nVoltage: 110-220Vac 50-60Hz\nApprox. spray distance: 9m\nThe light effect emits large and sharp beams in red, green and blue.\nHigh power beams covering a large area\nThe powerful effect uses a state-of-the-art lens.\nThe beams are projected on the dance floor or on the wall\n102x 5mm hi-brite LEDs\nOperating modes: Auto, sound activated, D..\n2 DMX channels for speed and dimmer\nSpeed and dimmer controls on the rear panel\nDimming control from 0-100%\nLamp: XOP15, 1500W\nPower supply : 220-230Vac, 50Hz\nDimensions : 530 x 300 x 190mm","domain":"optical_engineering"}
{"url":"https://www.gr-com.co.il/sec-solutions/laser-radar/","date":"2022-08-19T04:27:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573623.4/warc/CC-MAIN-20220819035957-20220819065957-00302.warc.gz","language_score":0.9325745105743408,"token_count":272,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__104503560","lang":"en","text":"The Laser Radar sensor line of products contains few different models (see attached table) that covers a variety of detection ranges and scanning angles to accommodate different needs and requirements. All systems are weather proof IP66 for outdoor security in various sites and facilities such as airports, power plants, jails, sea ports, military bases etc.\nThe sensors use the Time of Flight Technology. By measuring the distance to surrounding objects, they build a “map” of their environment. Subsequently, the sensors continuously asses the changes in their respective environment and adapts the detection thresholds. A target is detected when the detection thresholds are exceeded.\nThe DFSL proprietary Laser Radar technology contains 3 key blocks:\n1.The Analogue Unit of the Laser Range Finder.\ncreation, emission and receive of the laser pulses.\n2.The Electro-Optic block and the Scanning Mechanism.\nlenses and optical filters which determine the size of the beam.\nIt also includes the Scanning Mechanism which provides the rotation speed of the beam and the scanning sector.\nThis is the “heart” of the Automatic Target Detection.\nThe algorithm updates the map and adapts it for changes due to rain, wind (moving bushes), etc.\nDFSL products are FDA registered, CE marked & eye safe","domain":"optical_engineering"}
{"url":"https://albuquerque.oasiseverywhere.org/product/from-there-to-here-in-electronic-technology-what-did-it-take/","date":"2023-03-27T23:35:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948708.2/warc/CC-MAIN-20230327220742-20230328010742-00174.warc.gz","language_score":0.9493935704231262,"token_count":199,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__74231859","lang":"en","text":"In 1940 the average American household had a phonograph, a radio and a telephone. Fast forward to 2021. We are awash with electronic technology – television, computers, cell phones, the Internet, the “cloud” and the list goes on. We will examine some of the technology breakthroughs that got us from there to here, including the transistor, the integrated circuit, cellular technology, fiber optics, lasers, charge coupled devices (CCDs) and liquid crystal displays (LCDs). We will look at both the people, the organizations and the history behind these developments.\nLawrence Anderson earned a PhD in electrical engineering from Stanford University and spent most of his career at what was then AT&T Bell Laboratories, where he was involved in some of the first experimental applications of lasers. He headed the group that designed optical components for the first fiber optic transatlantic cable. He lectured for many years on technical subjects for the Institute for LifeLong Learning for New Mexicans.","domain":"optical_engineering"}
{"url":"http://itsmydownload.com/digivision-usb-digital-microscope-48/","date":"2019-02-23T00:09:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249406966.99/warc/CC-MAIN-20190222220601-20190223002601-00441.warc.gz","language_score":0.8792106509208679,"token_count":818,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__12450320","lang":"en","text":"The first is at around 30x indicated, but if you continue to rotate the focus wheel, the image will get blurry, then sharp again at around x indicated! Software application for connection drivers and viewer is included. How do I zoom in on an object? When I open Digital Viewer, why do I only see output from my other webcam? If you are having problems with glare, try viewing your intended object at an angle.\n|Date Added:||21 August 2014|\n|File Size:||54.51 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nSoftware digivision usb digital microscope for connection drivers and viewer is included. Other uses for the Digivison Microscope include: The download for this can be found below:. Hold it like a pen. Android support is on a case by case basis.\nUSB Digital Microscopes – ViTiny Digital Microscopes and Borescopes: ViTiny USA\nAuthor Write something about yourself. If you are having problems with glare, try viewing your intended object at an angle.\nThe first is at around 30x indicated, but if you continue to rotate the focus wheel, the image will get digivision usb digital microscope, then sharp again at around x indicated!\nThe first is at around 50x, but if you continue to rotate the focus wheel, the image will get blurry, then sharp again at a much higher magnification. From the factory, the LED control digivision usb digital microscope in the off position.\nThe level of magnification is controlled by the silver focus wheel, then the microscope or the object must be moved to the appropriate distance in order to be in focus. Since our microscope uses a standard webcam chipset, it will automatically install default webcam drivers when plugged in digivision usb digital microscope a computer.\nThe download for this can usv found below:. Any price and digivision usb digital microscope information displayed on http: Common uses include classroom exploration, stamp or coin analysis, micro-soldering, garden parasite identification, and much more.\nPowered by the USB port.\nAVI format at up to 30 frames per second. How do I dim the LED lights? And thanks to its accompanying software you can record your findings as photos and videos on your PC. Digivision usb digital microscope digital microscope connects to the USB port of your computer or laptop and allows you to view close ups of objects with up to x magnification.\ndigivision usb digital microscope Capture resolution and exposure can be changed with a few clicks, and video or time-lapse modes allow for continuous observation of a subject. Enhanced with 4 white LED lights and a 1. The closer the object, the higher the magnification possible.\nManual focus from 10mm to infinity. The LED lights can be dimmed or turned off by rotating the grey LED light control wheel near the top of the microscope body.\nFebruary January micoscope How can I fix this? Author Write something about yourself.\nAVI video format with internal lighting. The Digivision Microscope compact and innovative design, as well digivisioj its easy accessibility option make it a perfect candidate for classroom projects for scientific teaching and research.\nDIGIVISION USB DIGITAL MICROSCOPE DRIVERS FOR MAC DOWNLOAD\nDigivision usb digital microscope a free website Powered by. Create a free website Powered by. No need to be fancy, just an overview. See a live image on your computer and use the instant capture button to save the image. Classroom teaching aid Scientific and laboratory research tool including dissection and examination digivision usb digital microscope specimen Medical analysis such as dermatological examinations, etc Description: How do I magnify an object?\nRaspberry Digivision usb digital microscope running Raspbian: How do I dim the LED lights?","domain":"optical_engineering"}
{"url":"https://met-l-chek.com/product/mb-iris/","date":"2021-01-16T15:59:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703506697.14/warc/CC-MAIN-20210116135004-20210116165004-00275.warc.gz","language_score":0.9601908922195435,"token_count":122,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__37119254","lang":"en","text":"MB Iris is an extremely compact light. It is used together with automated systems that incorporate cameras to inspect hard to reach areas such as pipes interior. Iris has been tested to comply with both ASTM E3022-15 and ISO 3059-12 standards as well as with the internal requirements of all PRIMES mentioned on page 7, including Rolls-Royce RRES 90061 and Airbus AITM6-1001. It generates an intensity of approximately 4,000 μW/cm² at 38 cm (15 inches). Iris comes only as mains and it is supplied with a mounting bracket.","domain":"optical_engineering"}
{"url":"https://jagareridgevisioncare.ca/services/oct/","date":"2023-09-23T21:24:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.3/warc/CC-MAIN-20230923194908-20230923224908-00353.warc.gz","language_score":0.9226081371307373,"token_count":165,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__145301854","lang":"en","text":"This is a relatively new technology used in optometry that allows us to examine the cellular layers of the retina (tissue of the back of the eye) and visualize them in extremely high detail. This helps the doctor to understand the health of the tissues inside your eye and document it for progression awareness. OCT testing can be done as routine testing, or may be done as specialized testing when indicated.\nSpecialized Testing: OCT (Optical Coherence Tomography)\nOCT testing may be performed as extra testing for those patients who:\n- Have macular degeneration, or are determined as having potential risk factors for it.\n- Who are taking certain medications (ex: Plaquenil, tamoxifen).\n- Who have certain retinal conditions or changes.\n- Who have vision loss.","domain":"optical_engineering"}
{"url":"https://gasworlddirectory.com/directory/ametek-land/61000.details","date":"2024-04-13T23:10:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816853.44/warc/CC-MAIN-20240413211215-20240414001215-00899.warc.gz","language_score":0.8561106324195862,"token_count":437,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__85716973","lang":"en","text":"Dronfield, South Yorkshire, S18 1DJ, United Kingdom\nTel: +44 1246 417691\nAMETEK Land (Land Instruments) is the world’s leading manufacturer of monitors and analysers for industrial infrared non-contact temperature measurement, combustion efficiency and environmental pollutant emissions. Through their trusted range of leading-edge technologies, they are chosen the world over to deliver the highly accurate measurement solutions that precisely meet every customer’s process needs. With unrivalled applications knowledge, choosing AMETEK Land ensures the highest standards of process safety, process control and product quality are reached.\nMany hydrocarbon processing industry (HPI) applications require accurate, reliable temperature measurements without interference with the process. We provide high quality instruments to meet the needs of the HPI sector.\nOur dedicated solutions produce critical measurements in reformer and furnace applications, along with flexible thermal imaging systems to cover a range of HPI applications in plants and refineries.\nBuilding on our experience across more than 70 years, AMETEK Land produces an extensive range of measurement solutions specifically designed for the HPI. Offering radiometric infrared technology that doesn’t contaminate the process, our instruments provide essential temperature measurements at critical locations.\nWe offer high accuracy reliable non-contact temperature measurement solutions for the industrial gas market including Hydrogen Reformer, Ammonia, Methanol and Syngas production applications plus Ethylene Cracking Furnaces. By providing a complete high accuracy thermal image inside the reformer furnace, plus point measurement at specific locations, our Near Infrared Borescope 3XR thermal imager is the ideal tool to optimise plant efficiency and asset utilisation. Alongside the NIR-B 3XR thermal imager, the AMETEK Land Cyclops 390L is the market leader in the gas industry for high accuracy and repeatable non-contact fixed point temperature measurement.\nAMETEK Land is part of the Process & Analytical Instruments Division of AMETEK, Inc., a global supplier of high-end analytical instrumentation.","domain":"optical_engineering"}
{"url":"http://www.kvb.hu/vf1wj/nikon-d3500-sensor-size-2097ee","date":"2022-10-03T20:45:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337432.78/warc/CC-MAIN-20221003200326-20221003230326-00632.warc.gz","language_score":0.6842548847198486,"token_count":2704,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__262426069","lang":"en","text":"Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture. Die Kamera verfügt über einen APS-C-Bildsensor der in 24 Megapixeln auflöst und Aufnahmen mit maximal 6000 × 4000 Pixeln ermöglicht. Nikon 1 cameras: sensors made by Aptina (not sure about the J5) Note: some of the Nikon-designed sensors are made by Renesas. The sensor has a surface area of 366.6 mm². As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (2000D) and 1.5. Nikon D3500, take the aperture of the lens The Nikon D3500 DSLR is as easy to use as a point-and-shoot-camera while taking beautiful photos and videos; and featuring an image sensor 15x larger than a smartphone's camera. Max. DSLR Cameras. Both Canon M200 and Nikon D3500 have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras. One other difference between these two cameras that is worth mentioning is that Nikon D3500's sensor doesn't have an … In the bar chart below, you can find the Entry-Level DSLR cameras with the Largest Sensor. 24,200,000 photosites (pixels) on this area. Min. Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture Nikon D3500 DSLR Camera Bundle with 18-55mm VR Lens | Built-in Wi-Fi|24.2 MP CMOS Sensor | |EXPEED 4 Image Processor and Full HD Videos + 64GB Memory(17pcs) 4.6 out of … Max. Crop factor or focal length multiplier is calculated by dividing the diagonal D2x: 12 MP CMOS Sony (Nikon designed) D3: 12 MP CMOS Nikon D3s: 12 MP CMOS Nikon D3x: 24 MP CMOS Sony D4: 16 MP CMOS Nikon D4s: 16 MP CMOS Nikon. The sensor area in the Z5 is 134 percent bigger. Technische Merkmale. D3500. 0.5 to 3 m/1 ft 8 in. Der große DX-Format-Sensor der D3500 fängt mit 24,2 Megapixeln detailreiche Fotos und Full-HD-Filme ein – auch bei schwachem Licht. Nikon D5300 Bedienungsanleitung / Handbuch / Gebrauchsanweisung / Anleitung deutsch Download PDF Free - Bedienungsanleitung-deutsch.de Sensor Size and Resolution Comparison image of Nikon D3500 and Nikon D600 Cameras . Pixel pitch is 3.89 µm. Also, each lens will perform better or worst under different shooting conditions. DSLR Cameras. Der Sensor der D3500 bietet viel Potenzial für die Belichtungsoptimierung im Raw-Konverter – hier in Adobe Camera Raw. As seen above, Nikon D600 has a 2.4x Larger sensor area than Nikon D3500. Even though the D3500 has a larger sensor, both cameras offer the same resolution of 24 megapixels. Nikon D3500 DSLR Camera 24.2MP Sensor with NIKKOR 18-55mm f/3.5-5.6G VR Lens, SanDisk 32GB Memory Card, Case, 2 Pcs Tripod, 3 Pack Filters and A-Cell Accessory Bundle (Black) Average. Aperture is a lens characteristic, so it's calculated only for Follow the comparison links for a detailed one-on-one comparison of these cameras with the D3500. Both Canon T8i and Nikon D3500 have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras. Z50. Nikon D3500 specs and sensor info: 23.5 x 15.6 mm CMOS sensor with 28.21 mm diagonal and crop factor of 1.53. Pixel pitch is the distance from the center of one pixel to the center of the The best lens for Nikon D3500 is not necessary the best for a full-frame sensor DSLR such as the Nikon D750. Sie wurde im September 2018 in den Markt eingeführt. Weather Sealing. Pixel pitch, which is a measure of the distance between pixels, is 3.89 µm. Entry level DSLRs still sell in the millions worldwide so here to stay for now, until mirrorless can match low price and reasonable features, battery live, low cost lenses, etc. Of the two cameras under consideration, the Nikon D3400 features an APS-C sensor and the Nikon Z5 a full frame sensor. With its weather sealed body, we believe that Z50 has a big advantage over D3500 … All trademarks and product names are property of their respective owners. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2. Comparison of Nikon D5600 (24.2MP) and Nikon D3500 (24.2MP) on sensor size (28.21mm diagonals), pixel pitch, pixel density and more. If you want to know the equivalent aperture for Thus knowing which types of photography you will be doing will greatly narrow down your choices considering the number of lenses for Nikon D3500 available. Z50. Kamera: Nikon D3500, Objektiv: AF … This is the actual size of the D5500 sensor: 23.5 x 15.6 mm. Darin wird dir die Bedienung des Gerätes erklärt. For sake of simplicity, we're going to calculate it in 3 stages. D3500. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. you're using and multiply it with crop factor. Thickness Comparison . Nikon D3500 has a APS-C sensor with dimensions of 23.5 x 15.6 mm and sensor area of 366.60mm2. Fangen Sie alles ein. One other difference between these two cameras that is worth mentioning is that Nikon D3500's sensor doesn't have an … Especially if you buy some low priced primes for example such as the 50mm f1.8. of 35 mm film (43.27 mm) with the diagonal of the sensor. The Nikon D3500 also uses a great 24mp Sony sensor, so image quality can be there. next measured in micrometers (µm). 24 MP | APS-C CMOS SensorPentax KAF2 Mount, Rank in All Cameras: #81Rank in DSLR Cameras: #26, Rank in All Cameras: #237Rank in DSLR Cameras: #86, Rank in All Cameras: #105Rank in DSLR Cameras: #39, Rank in All Cameras: #208Rank in DSLR Cameras: #75, Rank in All Cameras: #138Rank in DSLR Cameras: #51, Rank in All Cameras: #231Rank in DSLR Cameras: #85, Rank in All Cameras: #99Rank in DSLR Cameras: #35, 20 MP | APS-C CMOS SensorPentax KAF2 Mount, Rank in All Cameras: #79Rank in DSLR Cameras: #30, 24 MP | APS-C CMOS SensorSony/Minolta Alpha Mount, Rank in All Cameras: #158Rank in DSLR Cameras: #64, 18 MP | APS-C CMOS SensorCanon EF/EF-S Mount, Rank in All Cameras: #287Rank in DSLR Cameras: #102, Entry-Level DSLR cameras with Largest Sensor, Other Frequently Asked Questions about Nikon D3500, 2020 Black Friday - Canon Camera and Lens Deals. Comparison 1: Nikon D5600 vs. Nikon D3400 vs. Nikon D5500 . Die Nikon D3500 ist eine digitale Spiegelreflexkamera des japanischen Herstellers Nikon. Overall, Nikon’s best-performing DX sensor is the one found in the D7200, but the differences in performance between them are so slight that you can pretty much ignore it when making a buying decision. It's slightly higher focal length multiplier). Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. Diagonal is calculated by the use of Pythagorean theorem: Surface area is calculated by multiplying the width and the height of a sensor. Im Zusammenspiel mit der Abbildungsleistung Ihres NIKKOR-Objektivs gelingen Ihnen kunstvolle Porträts mit zarter Hintergrundunschärfe. Ganz einfach. Since both Nikon Z50 and Nikon D3500 have the same APS-C sized sensor, their lenses for a similar focal length and aperture will be similar in size and weight. It is 25% smaller than the average DSLR sensor in its class. It can be calculated with the following formula: The area of one pixel can be calculated by simply squaring the pixel pitch: Pixel density can be calculated with the following formula: Sensor resolution is calculated from sensor size and effective megapixels. The Nikon D5300 is an upper entry-level DSLR that improves on the D5200 by removing the optical low-pass filter (OLPF) from its 24MP CMOS sensor, and featuring true 60p HD video capability, and a slightly larger 3.2in side-articulated 1.0M-dot tilt/swivel LCD. 99 The Nikon D3500 DSLR is as easy to use as a point-and-shoot-camera while taking beautiful photos and videos; and featuring an image sensor 15x larger than a smartphone's camera. Außerdem sind darin wichtige Nutzungshinweise wie zum Beispiel der Pflege des Nikon D3500 thalten. compared to DSLRs. fixed lens cameras. Weight Comparison. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2. Vom ersten Licht bis zum letzten Tanz. Average. Im Betrieb wiegt sie 410 Gramm. to 9 ft 10 in.) The sensor area in the D3500 is 11 percent bigger. Her is another table with the actual sensor models from radojuva.com.ua: Detection range-3 … Now lets have a look at the Nikon D3500 competitors in more detail. There are approx. Nikon Advanced Multi-CAM 3500 II autofocus sensor module with TTL phase detection, fine-tuning, 51 focus points (including 15 cross-type sensors; f/8 supported by one sensor), and AF-assist illuminator (range approx. Nikon D7500 filmt in 4K Zweiter Vorteil des neuen Sensors: Die D7500 kann jetzt auch in 4K mit 3840x2160 Pixel und maximal 30 Bildern pro Sekunde filmen. Hier findest du die Bedienungsanleitung/Handbuch des Sony Nikon D3500 als PDF Datei auf deutsch und/oder auf englisch sowie in anderen Sprachen. with crop factor (a.k.a. than maximum (not interpolated) image resolution which is usually stated on camera specifications. Nikon D3500 DSLR Camera with 24.2MP Sensor, NIKKOR 18-55mm f/3.5-5.6G VR Lens, 2 Pack Sandisk 32GB Memory Card, Bag, Tripod, Flash Light + A-Cell Accessory Bundle (32GB) 5.0 out of 5 stars 2 $559.99 $ 559 . Min. DX-Format-Sensor, 24,2 MP, neig- u. drehbarer Touchscreen, Smartgerät-Kopplung uvm. Entfesseln Sie Ihre Kreativität mit der Nikon D5600 Spiegelreflexkamera. Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next.\nProfusion Brushes Canada, The Garage Bar Menu, Grey Wagtail Or Yellow Wagtail, Yamaha Ez-220 Connect To Ipad, Rainbow Fish Craft Template, Is Cutleaf Coneflower Edible, Gibson Es-175 New, Lighthouse Silhouette Svg,","domain":"optical_engineering"}
{"url":"https://weindians.in/fiber-optically-smooth-the-otdr-modern-day/","date":"2023-12-07T19:59:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100686.78/warc/CC-MAIN-20231207185656-20231207215656-00171.warc.gz","language_score":0.9110320210456848,"token_count":676,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__292870143","lang":"en","text":"The use of modern fiber optic test equipment can be used to help phone companies keep their networks operating without interference. When a long distance telephone line goes down, it’s not the type of publicity phone companies revel in. Fiber optical technology continues to grow to ensure the dependability of phone companies to all their customers. In addition to the underlying stability and dependability of these networks, fiber optical measurement tools play a large role in keeping these networks operating smoothly.\nDuring installation, commissioning and maintenance, fiber optic cables, connectors and splices are routinely tested for flaws. These tests are done by using specialized test equipment such as fiber optic power meters, optical time domain reflectometers (OTDR), optical sources and optical attenuator’s. These same instruments can be used to determine the basic system operating parameters such as signal levels, signal attenuation and bit error rate (BER) measurements.\nDuring installation and maintenance, it is important to view the continuity of the fiber optic link. This procedure can only be done by using the OTDR. An OTDR consists of a pulsed optical transmitter, an optical coupler and a photo diode-based receiver, signal-processing circuitry and display screen. By using the connectors and the adapters, the OTDR is connected to one end of an fiber optic cable. Its transmitter sends short-duration pulses along the cable that are back scattered by imperfections of the fiber optic itself (Raleigh scattering), or reflected from splices, connectors, breaks and fiber end (Fresnel reflections).\nThe returned pulses are oriented through the fiber optic coupler to the receiver, where it measures the levels and the traveling time of the returned pulses. Loss and reflection values are shown on a display versus the location of these events, calculated with the traveling time and speed of light inside the fiber core. Locations of the loss and reflection value’s can be given with a 1-meter resolution. For the exact fault location, the values must be corrected, since they show the physical location along the fiber, while the fiber optic is actually twisted within the cable.\nDepending on the power level of the transmitter and the pulse width, OTDR’s can reach distances of 50 km to 200km. Longer pulses, due to their higher energy level, are used to cover long-haul applications. Higher resolution, as necessary in short-haul applications, can only be achieved by shorter pulse widths. The measurement resolution describes how far apart two faults can occur and still be accurately measured.\nAn OTDR is often used by phone companies to isolate breaks or faults within their operation, such as in areas of extreme signal loss within a cable. Resolving a break to within a meter or less narrows down the section of cable that must be replaced, saving expense and time for the service crew. As the OTDR also enables the measurement of the overall length of the fiber optic link, it’s results are often used as a base for the expense calculation of the installation company.\nIf this post is use full for you please share the post with your friends.\nPlease follow as Facebook : www.facebook.com\nPlease follow as Twitter : www.twitter.com\nAnd More Information Please Visit Here : www.weindians.in\nPlease Subscribe on Youtube : www.youtube.com","domain":"optical_engineering"}
{"url":"http://longtogethere.com/top-camera/10-of-the-weirdest-cameras-ever-made/.html","date":"2018-07-22T04:55:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593010.88/warc/CC-MAIN-20180722041752-20180722061752-00147.warc.gz","language_score":0.9043805599212646,"token_count":188,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__259115774","lang":"en","text":"The history of camera gear is rich, storied, and well, weird. Camera design has evolved in many different directions over time, sometimes in magnificent arcs of ingenuity and design, others in pit stops of absurd creativity or questionable judgment. Today, we’re celebrating some of the strangest stops along that journey.\nWe’ll limit our list to serious consumer or professional cameras; spy, toy, and gadget cameras could take us down quite a deep rabbit hole!\n1. Light L16\nOne camera, 16 lenses, 16 sensors. The lenses are made of plastic. Some of the lenses lay on their sides. Using five 35mm lenses, five 70mm lenses, six 150mm lenses, and a lot of computational photography, the Light L16 aims to replicate DSLR quality in a miniscule package. While we’ve yet to see it in action, it’s an intriguing concept.","domain":"optical_engineering"}
{"url":"http://novagan.com/index.php/epitaxy-leds/","date":"2023-12-02T06:13:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100327.70/warc/CC-MAIN-20231202042052-20231202072052-00510.warc.gz","language_score":0.8921657800674438,"token_count":177,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__3036488","lang":"en","text":"UV, Blue, Green and Red LEDs\nEmission wavelength from 375nm to 630nm\nHeterostructures can be partly or completely designed by the customers in order to meet the requirements for their specific applications. Using state-of-the-art facilities our team of experts is capable of turning your ideas into world class products.\nHigh Efficiency LED Structures\nThanks to long optimizations of the LED design and the growth parameters for every element constituing the LED structures our LED epiwafers allow to reach superior efficiencies. This is achieved in the full visible spectrum from blue to red.\nBest Performances with High Quality Quantum Wells\nOur heterostructures are tailored with atomic layer precision. The elements consitituing our heterostructures are based on highly optimized materials so we can guarantee that the specific design of our customers will corresponds to their requirements.","domain":"optical_engineering"}
{"url":"https://cz.vwr.com/store/product/17060366/anti-igg-h-l-f-ab-2-goat-polyclonal-antibody-apc-allophycocyanin","date":"2021-10-22T03:36:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585450.39/warc/CC-MAIN-20211022021705-20211022051705-00108.warc.gz","language_score":0.8643866181373596,"token_count":205,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__56498905","lang":"en","text":"The ImmunoReagents' Allophycocyanin (APC) is an intensely bright phycobiliprotein isolated from red algae that exhibits far-red fluorescence with high quantum yields. It is excited by laser lines at 594 and 633 nm, with an absorbance maximum at 650 nm and a fluorescence emission peak at 660 nm. APC is a large molecule that is chemically crosslinked to use in fluorescence-based detection, primarily for flow cytometry, microarray assays, ELISAs, and other applications that require high sensitivity but not photostability.\nThis conjugate is suitable for immunomicroscopy and flow cytometry. The optimal working dilution should be determined by the investigator. Suggested starting dilution(?): · 1:20 - 1:2,000 for most applications\nAntigen: IgG H&L, F(ab)'2 Fragment\nConjugation: APC (Allophycocyanin)","domain":"optical_engineering"}
{"url":"https://appliedphysics.physicsmeeting.com/abstract/2018/laser-modal-analysis-an-effective-tool-in-reshaping-a-multimode-laser-beam-into-an-optimized-thin-light-sheet-used-in-ultramicroscopy-imaging-technique","date":"2023-05-28T03:59:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643462.13/warc/CC-MAIN-20230528015553-20230528045553-00264.warc.gz","language_score":0.8990527987480164,"token_count":582,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__226496409","lang":"en","text":"5th International Conference on Theoretical and Applied Physics\nVienna University of Technology, Austria\nTitle: Laser Modal analysis, an effective tool in reshaping a multimode laser beam into an optimized thin light sheet used in ultramicroscopy imaging technique\nBiography: S Saghafi\nThe solutions of the wave equation provide adequate information about the beam phase and amplitude at any point. In physical optics, the exact solution of the wave equations (e.g. Helmholtz equation), is generally impractical, thus approximations are used; the paraxial approximation applies when the beam waist is large relative to the wavelength and the angle of divergence is small. The multipole expansion method provides solutions to the wave equation. Any solution of Maxwell’s equation can be expressed as the summation of incoming and outgoing electric and magnetic multipole fields. The superposition of any two solutions is also a solution, and this is referred to as the principle of superposition. The electromagnetic field at a point far from a focus is described by expansion of the diffraction integral into a series of functions such as Gegenbauer polynomials or spherical Bessel functions. This method has been used to investigate the effects of different amplitude weighting, and can be extended to truncated Gaussian beams or systems with spherical aberration. Defining an arbitrary field as the modal superposition of individual fields, and employing the angular spectrum method (Fourier optics) in the framework of wave optics, can provide accurate results for the propagation of each component. The field characteristics can be described by a superposition of the propagated components. Using the current solutions of the paraxial wave equation enables to describe the propagation of an arbitrary laser beam from near- to far-field. Based on the modal analysis method, we analyse the output beam of a diode pumped solid state (DPSS) laser emitting a multimode beam. Using the experimental data, the individual modes, their respective contributions, and their optical parameters are determined. We have designed a mode modulator unit that includes different meso-aspheric elements and a soft-aperture to reshape the multimode beam into a quasi-Gaussian beam through the interference and superposition of the various modes. The converted beam is guided into a second optical unit comprising achromatic-aspheric elements to produce a thin light sheet for ultramicroscopy. This sheet is significantly thinner and exhibits less side shoulders compared with a light sheet directly generated from the output of a DPSS multimode laser. The method to generate a reconstructed Gaussian beam from multimode lasers that is described in this paper may help to decrease the price of ultramicroscopy systems, making them more affordable for scientists needing lasers with different wavelengths.","domain":"optical_engineering"}
{"url":"https://www.avanthills.co.uk/laser-hair-removal/","date":"2022-01-19T22:54:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301592.29/warc/CC-MAIN-20220119215632-20220120005632-00590.warc.gz","language_score":0.9101575613021851,"token_count":602,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__183330905","lang":"en","text":"Laser Hair Removal\nWhat is laser hair removal?\nLaser hair removal is the process of absorbing/destroying hair follicles by using pulses (wavelengths) of laser light into the skin. The hair follicle lays deep in the dermis of the skin and requires a precise depth of pulse (wavelength) light to be emitted directly into the hair follicle to destroy its function of hair regrowth. There are two different types of treatment for hair removal both use pulses of laser light, A Laser and a IPL (Intense Pulse Light). These two different treatments give very different and distinct results.\nWhat is the difference between Laser and IPL?\nThe key difference between the two treatments is that an IPL is a much cheaper less effective technology for reducing body hair, it uses a scattered non-targeted pulse of light with multiple wavelengths only 2 mm under the skin, to try and breakdown hair follicles. IPL cannot be used safely on dark skin types.\nLasers are far more precise, they emit a single focused and precise wavelength that can reach over 4 mm into the dermis, whereby optimising maximum follicle absorption and can selectively destroy the hair follicles while leaving all other surrounding skin untouched. Lasers can also successfully treat all skin types 1 to 6.\nHow can I tell the difference between an IPL or Laser?\nOne way to tell the difference is by the size of the hand piece and/or the colour of the light. An IPL will usually have a large head with a flat square or oblong glass panel, that omits a white flash of light. Whereas a laser will often have one single probe, omitting a small red light.\nThe picture above depicts the penetration depths of laser wavelengths. The laser used at Avanthills is a Cynosure Elite Plus, which is a highly versatile aesthetic workstation, which delivers exceptional results for all skin types. The Cynosure Elite Plus has optimal dual wavelengths; the gold standard 755 nm Alexandrite and the 1064 nm Nd YAG wavelengths, as you will see from the diagram our laser has the combined wavelengths that enable the correct penetration of laser to destroy the hair follicle for unsurpassed efficacy on all skin types.\nWhat areas of the body can have Laser Hair Removal?\nLaser Hair Removal can be used on various parts of the body, such as:\nThe Face: Upper Lip, Chin. Sides of Face. Cheeks, Full Face, Ears, Mans Beard, Neck and Back of the Neck\nUpper Torso: Shoulders, Under Arms, Forearms, Upper Arms, Full Arm, Hands & Fingers, Chest, Areola, Abdomen, Abdomen Strip, Upper Back, Lower Back, Full Back, Back with Shoulders\nLower Extremity: Bikini Line, Extended Bikini, Brazilian, Buttocks, Lower Leg, Upper Leg, Full Leg. Feet & Toes","domain":"optical_engineering"}
{"url":"https://www.deskgrown.com/collections/products/products/melon-shades","date":"2019-03-21T15:45:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202526.24/warc/CC-MAIN-20190321152638-20190321174638-00251.warc.gz","language_score":0.8665788173675537,"token_count":165,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__19137287","lang":"en","text":"Sunglasses that fit you\nUsing the power of 3D printing you can now get sunglasses with a custom fit. When you download the 3D files you get different options for the width of the nose-ridge, the width of the frame and the length of the temple-pieces. Combine the parts that fit you and print your pair today.\nHigh quality lenses\nThe polarized lenses are able to filter out harmful UV rays without any optical distortion or haze. Thanks to their scratch resistance you can feel certain about them handling daily wear and tear nicely.\nTo assemble the glasses simply print the model, remove the supports and glue the frame together around the polarized lenses. We recommend you print in the orientation shown below for easy support removal and high durability.\nDownload and print your custom sunglasses today. Files available for free.","domain":"optical_engineering"}
{"url":"https://5816939.com/aesthetics-meet-function-large-format-laser-engraving-for-architectural-designs/","date":"2024-04-24T13:35:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819273.90/warc/CC-MAIN-20240424112049-20240424142049-00456.warc.gz","language_score":0.9269388318061829,"token_count":873,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__2446267","lang":"en","text":"In the world of commercial production, huge layout laser cutting has actually considerably influenced manufacturing effectiveness. The non-contact nature of laser reducing removes the demand for device modifications, minimizing downtime and boosting total throughput. This performance is additionally boosted by the capability of lasers to reduce numerous items all at once, maximizing the manufacturing procedure and lessening product waste.\nUpkeep is an additional vital facet of guaranteeing the laser cutting system durability and efficiency of huge style laser reducing systems. Routine cleansing and calibration of optics, mirrors, and lenses are important for maintaining the precision of the laser beam of light. Executing an aggressive upkeep routine can stop downtime and make certain constant, high-grade cuts over the long-term.\nHuge style laser cutting has actually become a cutting edge modern technology in the world of accuracy production. As sectors pursue higher precision and effectiveness, the fostering of this advanced strategy has actually ended up being progressively common. In this thorough overview, we will certainly explore the ins and outs of big style laser cutting, discovering its applications, benefits, and the crucial factors to consider for opening its complete capacity.\nWhile big style laser reducing excels in accuracy and effectiveness, it is not without its difficulties. Furthermore, the option of aid gases, such as nitrogen or oxygen, can affect the high quality of the cut and must be customized to the details product being refined.\nThe accuracy accomplished with big style laser cutting is an outcome of the focused and concentrated beam that the laser sends out. This high-energy light beam is managed by computer system mathematical control (CNC) systems, making certain thorough precision in every cut. The degree of information that can be accomplished is unrivaled, making it an optimal option for sectors where accuracy is non-negotiable.\nBig layout laser reducing stands at the leading edge of accuracy production, using unequaled precision and convenience. As innovation proceeds to advance, huge style laser cutting is positioned to play an also extra considerable function in forming the future of production and layout.\nAn additional element to be conscious of is the focal size of the laser lens. The focal size establishes the dimension of the laser beam of light and, subsequently, the degree of information in the cut. Various focal sizes appropriate for various applications, with much shorter focal sizes offering finer information and longer focal sizes enabling much deeper cuts.\nAmong the main benefits of huge style laser cutting is its capability to collaborate with a varied variety of products. Whether it’s steels like stainless-steel and light weight aluminum, or non-metals such as acrylic, timber, or plastics, the laser’s adaptability enables a wide range of applications. This versatility has actually made it a recommended option for elaborate styles, great outlining, and intricate geometries.\nAt its core, big style laser reducing entails using high-powered lasers to specifically reduce or etch products. Unlike typical techniques, such as mechanical cutting or sawing, laser reducing deals unmatched accuracy and flexibility. This innovation has actually located its specific niche in a variety of markets, from aerospace and automobile to signs and building style.\nAt its core, big style laser reducing includes the usage of high-powered lasers to specifically reduce or etch products. The accuracy accomplished via big style laser cutting is an outcome of the focused and concentrated beam of light of light that the laser produces. A vital factor to consider in opening the complete possibility of huge layout laser cutting is comprehending the variety of laser resources readily available. In enhancement to product factors to consider, the selection of laser power plays a crucial function in huge layout laser cutting. Greater power level lasers are qualified of reducing with thicker products at faster rates, while reduced power level lasers supply enhanced accuracy for thinner products.\nAn essential factor to consider in opening the complete capacity of huge style laser cutting is recognizing the variety of laser resources readily available. Carbon dioxide lasers, which run at a longer wavelength, are fit for reducing non-metallic products.\nAlong with product factors to consider, the selection of laser power plays a crucial function in huge layout laser cutting. Greater electrical power lasers can puncturing thicker products at faster rates, while reduced power level lasers provide enhanced accuracy for thinner products. Striking the best equilibrium in between power and rate is crucial for attaining the preferred end result in any kind of laser reducing application.","domain":"optical_engineering"}
{"url":"https://independentnews.co.sz/entertainment/local-entertainment/1745/taiwan-donates-most-expensive-scanner/","date":"2023-06-02T14:49:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648695.4/warc/CC-MAIN-20230602140602-20230602170602-00208.warc.gz","language_score":0.9521617889404297,"token_count":346,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__131411001","lang":"en","text":"Mbabane: The Republic of China on Taiwan has donated the most expensive scanner called thermal imaging camera. Taiwan made this donation to the Ministry of Health at an event held at the Taiwanese embassy in Mbabane on May 4. The Taiwanese team that descended in the country said the thermometer which is infrared powered and is said to be one of few that are used in the wake of the COVID-19 pandemic globally. It is able to scan a number of people simultaneously while also ensuring safety as the users need not stand within earshot.\nReceiving the donation the Ministry of Health said the camera is easier, to use, safer as well as saves on time, said a member of the team.\nOn thermal imaging camera\nWhile they are expensive pieces of equipment, their popularity and adoption by fire-fighters in the United States is increasing markedly due to the increased availability of government equipment grants following the September 11 attacks in 2001. Thermal imaging cameras pick up body heat, and they are normally used in cases where people are trapped where rescuers cannot find them.\nA thermal imaging camera consists of five components: an optic system, detector, amplifier, signal processing, and display. Fire-service specific thermal imaging cameras incorporate these components in a heat-resistant, ruggedized, and waterproof housing. These parts work together to render infrared radiation, such as that given off by warm objects or flames, into a visible light representation in real time.\nThe camera display shows infrared output differentials, so two objects with the same temperature will appear to be the same colour. Many thermal imaging cameras use grey scale to represent normal temperature objects, but highlight dangerously hot surfaces in different colours.\nDiscussion about this post","domain":"optical_engineering"}
{"url":"https://futurehousestore.co.uk/industrial-luminaires/","date":"2022-06-24T22:56:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103033816.0/warc/CC-MAIN-20220624213908-20220625003908-00125.warc.gz","language_score":0.9355474710464478,"token_count":209,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__88183489","lang":"en","text":"We are away from 23rd June to 30th June. All new orders will be shipped after the 30th of June. We are sorry for the inconvenience.\nLED industrial luminaires are lighting lamps, in particular, fluorescent luminaires, LED linear luminaires and High Bay LED luminaires. The offer includes various industrial luminaires ranging from linear office luminaires, hermetic luminaires to linear luminaires with a built-in light source in the form of LED diodes. It is these latter LED luminaires that are revolutionizing the lighting market recently, gaining more and more popularity and recognition among customers. High luminous parameters, negligible failure rate and a wide range of available colour temperatures as well as power put the LED industrial luminaires in the highest place. They are intended in particular for the indoor lighting of premises such as commercial spaces, corridors, warehouses, halls, sports facilities, shops, offices, hotels as well as the lighting of residential buildings.","domain":"optical_engineering"}
{"url":"https://www.gonzalez-strength.com/blog/land-surveying/lidar-scanner-surveying/","date":"2023-06-10T11:16:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224657169.98/warc/CC-MAIN-20230610095459-20230610125459-00272.warc.gz","language_score":0.9711702466011047,"token_count":353,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__38486168","lang":"en","text":"Lidar Scanning - Saving Time and Money\nWhat is lidar surveying? Lidar, which stands for Light Detection and Ranging, is a surveying technology that uses pulsed laser light to measure distances and its had a huge impact on the surveying industry. In this blog post, we will discuss what lidar surveying is and how it can benefit your project!\nLidar is a form of laser scanning that uses light to measure distances. It can be used to create a three-dimensional map of an object or area. Lidar surveying is often used for mapping and engineering projects, as well as in the mining and agriculture industries.\nLidar has many advantages over traditional surveying methods. For starters, lidar is much faster than traditional survey methods. It can also produce more accurate results, especially when it comes to measuring small objects or features. Lidar is also less affected by weather conditions than traditional survey methods, making it a better choice for many projects.\nGround based lidar scanners are especially useful for surveying highways or construction sites. Drones are also capable of carrying Lidar equipment and are great at capturing topographic data over large areas in a very short amount of time. In both cases, the surveyor can avoid potentially dangerous situations, such as surveying the side of steep terrain, or the pavement of a very busy highway.\nWhile Lidar scanners are still relatively expensive, they are a great investment saving both the surveyors and their clients time and money. Gonzalez-Strength & Associates has invested in both ground based and drone based Lidar equipment. Talk to us about your next project and we'll see if Lidar scanning is a good fit.","domain":"optical_engineering"}
{"url":"https://forums.woot.com/t/carpet-pet-urine-stain-detector/776338","date":"2021-05-10T08:51:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989115.2/warc/CC-MAIN-20210510064318-20210510094318-00247.warc.gz","language_score":0.9335636496543884,"token_count":429,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__21325124","lang":"en","text":"Nichia 365nm UV LEDs are probably the most common found in UV flashlights. The LG 365nm UV emitter is way more powerful but harder to find. You 100% want a filtered lens on the UV flashlights, which this doesn’t appear to have. The filtered lens allows for the glowing effect UV given to certain surfaces to be as visible as possible while cutting down on the visible light thus providing much more usable UV light. This may sound confusing but to see them side by side is extremely apparent. The filter is 100% mandatory is my personal opinion owning multiple filtered and unfiltered UV lights.\nIf you’re searching for what I am talking about you’d look for a Convoy S2 with LG emitter. You may find it hard to find given a patent troll has attempted to scrub them all from the internet to maximize his own profit margins, but they’re out there if you look hard enough.\nTrust me when I say a filtered lens is the only way to go when it comes to UV lights. Anyone who tells you otherwise is clueless.\nLastly: ALWAYS WEAR UV EYE PROTECTION WHEN USING THESE LIGHTS You will 100% suffer eye damage if this reflects off a surface and is exposed to an unprotected eye. Your eye does not properly adjust to UV and will cause permanent eye damage if you do not heed my warning.\nWoot’s “Don’t direct the flashlight light to human eyes to avoid injury.” is an interesting to say that you will have absolute permanent eye damage even with MINIMUM exposure time to the naked eye. Do not use this ANYWHERE near skin, pets, or other humans. Always 100% of the time use UV eye protection with this. I really cannot stress this enough. The dangers of UV light to eyes and skin are astronomical. Keep this away from your children. Do not even let them know you own it. These things lead to so many hospital visits a year it’s not funny.\nHere is an example of what you will do to your eye.","domain":"optical_engineering"}
{"url":"https://rgbkb.gitbook.io/rgbkb-build-guides/sol-build-guide/sol-power","date":"2022-09-26T00:47:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334620.49/warc/CC-MAIN-20220925225000-20220926015000-00389.warc.gz","language_score":0.9533981680870056,"token_count":121,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__173050255","lang":"en","text":"Sol 2 has up to 180 WS2812B LEDs. According to their spec sheet, they can pull up to 60mA when all 3 R,G,B LEDs are on. This will be referred to as \"full bright white\", and can theoretically reach 10.8A for just the LEDs. If you keep saturation at 255 (100%), the LEDs will only use one LED (or a combination of two or three) at full power, so the current will be closer to 20mA. In order to reach full bright white, you must reduce saturation to 0, and increase brightness to 255.","domain":"optical_engineering"}
{"url":"http://www.crestukgroup.com/university-of-rochester-laboratory-for-laser-energetics/nggallery/slideshow","date":"2022-07-03T03:03:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104209449.64/warc/CC-MAIN-20220703013155-20220703043155-00205.warc.gz","language_score":0.9202141761779785,"token_count":320,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__221342058","lang":"en","text":"University of Rochester Laboratory for Laser Energetics\nUniversity of Rochester\nRochester, New York\nThe Laboratory for Laser Energetics (LLE) of the University of Rochester is a unique national resource for research and education in science and technology. LLE was established in The 1970s as a center for the investigation of the interaction of intense radiation with matter, the Laboratory’s mission is to conduct implosion experiments and basic physics experiments in support of the National Inertial Confinement Fusion (ICF) program, to develop new laser and materials technologies, to provide graduate and undergraduate education in electro-optics, high power lasers, high-energy-density physics, plasma physics, and nuclear fusion technology and to conduct research and development in advanced technology related to high energy density phenomena. Precautions were taken and implemented within the design to control movement and any form of vibration that would adversely affect the laboratories sensitive laser equipment. The sketch shown depicts Laboratory for Laser Energetics major research facility, the OMEGA laser system. OMEGA stands 10 meters tall and is approximately 100 meters in length. This system delivers pulses of laser energy to targets in order to measure the resulting nuclear and fluid dynamic events. OMEGA’s 60 laser beams focus up to 40,000 joules of\nenergy onto a target that measures less than 1 millimeter in diameter in approximately one billionth of a second. At LLE, scientists continue to research what will one day become a vast source of power using the ocean’s ample storehouse of potential energy.","domain":"optical_engineering"}
{"url":"https://www.ledpstar.com/about/about-us/","date":"2023-06-06T16:26:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652959.43/warc/CC-MAIN-20230606150510-20230606180510-00305.warc.gz","language_score":0.8722565174102783,"token_count":552,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__287483593","lang":"en","text":"Founded in 2010, Shenzhen Powerstar Technology Co.,Ltd is a modern high-tech enterprise integrating R&D, design, production, sales and service. We focusing on high-end commercial lighting with strong innovation ability.\nOur core team members have 10-15 years of experience in business, R&D, procurement and factory operation in the lighting industry, which provides a strong guarantee to serve our customers.\nPowerstar has passed ISO9001:2015 quality system certification standards, the product passed TUV/SAA/CE/CB/ROHS/SASO certification. We have high precision optical inspection equipment, automated production equipment and high performance aging inspection equipment to ensure the quality of every product.\nPowerstar has established a good strategic partnership with well know companies at home and abroad, including OSRAM, PHILIPS, TRIDONIC, CREE, CITIZEN.\nPowerstar focus on high efficiency, low light decay, low UGR, flicker free commercial lighting products including: led downlight, led track light, led linear light, led elephant trunk light, led bucket light, led flood light, led high bay, led street light with novel style and complete variety. Widely used in the subway, shopping malls, hotels, clothing chain supermarkets, automotive 4S stores, home furnishing stores, theaters, museums, jewelry chain stores, parking lots, subways, hospitals, schools, municipal engineering and other high-end commercial lighting projects. We provide customized and personalized design services for our customers.\nThe products of Powerstar achieve a perfect integration of light and space, combining the practicality, functionality, artistry, comfort and technology of the products in an organic way.\nGratitude, Integrity, Communication, Efficiency, Innovation, Win-win\nTo bring healthy and comfortable light into people's lives.\nTo build a harmonious and win-win ecosystem for employees, customers, suppliers and partners.\nProduct Service Projects:\nDomestic: 2022 Beijing Winter Olympics, China Railway Group, Poly Theatre, Chengdu Phoenix Music Theme Park, Shenzhen Metro, Nanchang Metro, Hong Kong Metro, Hong Kong Wanchai Convention and Exhibition Center, Macau Casino etc.\nInternational: Italy supermarket chain MD, Germany Berlin University, Switzerland ETH Zurich, Spain ZARA, Philippines H&M, Spain IKEA chain, Spain Mercedes Benz 4S store, Switzerland KFC Restaurant, Thailand Grand Palace,Thailand Toyota 4S store, UK Manchester Airport, UK Manchester Football Club, USA Miami Museum etc.","domain":"optical_engineering"}
{"url":"https://www.winsfordeyecare.co.uk/shop_services/thin_and_light_lenses?next=&id=32","date":"2024-04-20T07:40:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817491.77/warc/CC-MAIN-20240420060257-20240420090257-00013.warc.gz","language_score":0.9039503931999207,"token_count":253,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__176748061","lang":"en","text":"Thin and Light Lenses\nModern lens materials, allied to computer-based design and manufacturing technologies, mean that manufacturers can make lenses that are thinner and lighter than have ever been possible before. With higher prescriptions, the differences can be extraordinary.\nIf you’re short sighted, the thickness of the edge of standard lenses can ruin the effect of an expensive designer frame, while if you are long sighted, conventional lenses can bulge out from the frame and magnify your eyes. Modern thin and light lenses have put an end to these drawbacks.\nEven though Thin and Light lenses are thinner, they’re nevertheless very resistant to breakage. Airwear Thin and Light lenses offer unmatched protection from impact and 100% protection from UVA and UVB radiation. They don’t just look better - thinner lenses are naturally lighter, so they’re much more comfortable to wear.\nWe have a range of Thin and Light lenses, including Lineis 1.74, Stylis 1.67 and Airwear 1.6, each offering slightly different benefits. So, whether you wear single vision lenses or Varilux, ask us about Thin and Light lenses which can really make the most of your new spectacles.Back","domain":"optical_engineering"}
{"url":"http://www.eyesurgicenter.com/acrysof-implants/","date":"2021-01-16T02:50:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703499999.6/warc/CC-MAIN-20210116014637-20210116044637-00441.warc.gz","language_score":0.9394378066062927,"token_count":197,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__229494472","lang":"en","text":"As we get older, our ability to focus on things at different distances begins to fade, forcing some of us to rely on bifocals and other vision aids.\nLike other replacement lenses, Acrysof ReSTOR lenses are put in place during cataract surgery. Unlike other lenses, however, the Acrysof ReSTOR lens lets patients see from near to far usually without glasses. Most Acrysof ReSTOR patients find that they can read a book, work on a computer, drive a car – day or night – and play golf or tennis with an increased freedom from glasses.\nAnother visual impairment that can accompany cataracts is caused by astigmatism. This too can be corrected with an advanced lens, the Acrysof TORIC implant especially designed to neutralize the effects of astigmatism. This lens helps keep images from being distorted following cataract surgery thus reducing reliance on glasses.\nNew Online Patient Registration","domain":"optical_engineering"}
{"url":"https://spectechnology.com/1310nm-Optical-Input-Transmitter.php","date":"2022-07-06T00:47:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104655865.86/warc/CC-MAIN-20220705235755-20220706025755-00475.warc.gz","language_score":0.7297348976135254,"token_count":264,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__52014922","lang":"en","text":"Exact level of optical power input is displayed on screen.\nThe High performance DFB lasers with narrow lines, good linear and high output power.\nRF power digital automatic processing technology developed and operated ourselves is used in the part of RF drive. It automatically adjusts the RF drive power according to the input RF signal level and channel number. To ensure CSO, CTB and C/N index in the best value and overall system performance.\nAdvanced multi-frequency pre-distortion technology the latest full RF GaAs devices improve the CTC and CSO. C/N index get the maximum promotion\nLCD display displaying the operating parameters and fault information.\nOptical Power : 4 ~ 31 mw\nOptical Wavelength : 1310±20 nm\nLaser Type : DFB Laser\nOptical Modulating Mode: Directly Optical Intension Modulation\nMGC controlled Range : ±8dB\nAGC Controlled Range : ±8dB\nC/CTB : ≥65dB\nC/CSO : ≥60dB\nFrequency Range : 47 ~ 862 mHz\n10 + 10 dBm\n11 + 11 dBm","domain":"optical_engineering"}
{"url":"http://www.noliac.com/news/item/show/book-a-meeting-with-noliac-at-spie-photonics-west-2017/","date":"2024-03-01T01:20:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474893.90/warc/CC-MAIN-20240229234355-20240301024355-00049.warc.gz","language_score":0.9259674549102783,"token_count":286,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__77302627","lang":"en","text":"Book a meeting with Noliac at SPIE Photonics West 2017\nPiezo partner for the photonics industry\nNoliac has a long history of close cooperation with a long range of companies working in the photonics industry. John Klausen, Managing Director of Noliac North America, will visit SPIE Photonics West and explains:\n- Photonics West is a huge event where the entire photonics industry is assembled. Therefore, it is the perfect venue for us to be updated on new products and trends in the industry. At the same time, this is a good opportunity to meet with many of our existing and potential customers. Here, we can sit down and start looking at how we can help you find the best piezo solution for your next photonics project.\nBook a meeting\nIf you want to arrange a meeting at SPIE Photonics West to hear more of Noliac’s products or to discuss a piezo solution for your next application, please contact John Klausen directly. John will be available for meetings on January 31 and February 1:\nRead more about SPIE Photonics West\nSPIE Photonics West is the world’s largest multidisciplinary event for photonics with more than 20,000 visitors and more than 1,300 exhibitors. The event is held in the Moscone Center that has more than 400,000 square feet of exhibition space.","domain":"optical_engineering"}
{"url":"http://www.thtechnology.co.uk/","date":"2013-12-06T02:16:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163049020/warc/CC-MAIN-20131204131729-00009-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8393966555595398,"token_count":108,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__183522991","lang":"en","text":"Tillett and Hague Technology Ltd\nTillett and Hague Technology is a research and development company providing automation technology for the agricultural and related industries. We license our technology to manufacturers, provide technical support, and conduct research and development contracts. We have particular expertise in precision guidance and provide the technology behind Robocrop in-row and inter-row vision guidance systems.\n|Company Background||Past Projects|\n|Current and Recent Projects||Robocrop Vision Guidance|\n|Contact us||Video clips of technology in action|","domain":"optical_engineering"}
{"url":"https://coolhunting.com/tech/tio2-paint/","date":"2022-10-03T05:32:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337398.52/warc/CC-MAIN-20221003035124-20221003065124-00691.warc.gz","language_score":0.9360640048980713,"token_count":171,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__88619180","lang":"en","text":"Last year the BBC reviewed a new glass coating that is self cleaning and anti-bacterial. Made from Titanium Dioxide (TiO2), the surface reacts with light to do its job.\nTwo product extensions are now available from Japan– TiO2 paint and household spray. They basically work the same way, reacting to sunlight, but are used to create more sterile interior spaces. As explained by Dr. Kevin Sanderson, one of the developers of the original glass coating:\nIt [TiO2] absorbs sunlight – ultraviolet radiation – which causes what is called a photocatalytic effect. Through this process, the coating reacts with light which then breaks down organic dirt.\nThese new products, named Kukai, are available for purchase at tio2paint.com where there's more information available about how they work.","domain":"optical_engineering"}
{"url":"https://glremoved1faytfultraders.gamerlaunch.com/users/blog/6206538/2220543/rangefinder-with-optical-anti-shake-technology/?gid=466144","date":"2024-04-24T00:48:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818835.29/warc/CC-MAIN-20240423223805-20240424013805-00703.warc.gz","language_score":0.9062315225601196,"token_count":682,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__24789479","lang":"en","text":"'Rangefinder' with optical anti-shake technology\nGolf Zone Decca\nKorea's first golf rangefinder with optical anti-shake technology has been released. GolfZone Decca (CEO Jung Ju-myung), a global golf rangefinder company, introduced the aim L30 Stabilized, the culmination of 20 years of research and development, 섯다 on the 31st of last month.\nThe aim L30 Stabilized is the first rangefinder brand in Korea to apply a unique anti-shake technology called 'SCT', one of the optical image stabilization (OIS) technologies, to capture targets steadily even with strong shaking. It also features a design that fits snugly in the hand and the latest GolfBuddy features, including ZST+, to deliver the highest level of distance measurement performance on the field.\nSCT is GolfBuddy's proprietary lens-driven image stabilization technology, where a gyro sensor in the aim L30 Stabilized's optics detects when the rangefinder is shaking, and a small motor in the lens drives it to compensate. 카지노사이트랭크 Previous anti-shake rangefinders on the market use a fixed frequency method, which has the disadvantage of slowing down the detection of large shake changes, but GolfBuddy uses a variable frequency method to recognize the target, so it can quickly and accurately compensate for both small and large shakes.\nThe GolfBuddy aim L30 Stabilized rangefinder comes with premium features. The bi-color green and red OLED viewfinder provides a high contrast ratio and a crisp, clear view, making it easy to use in both day and night conditions. GolfBuddy's unique ZST+ ultra-fast distance measurement technology enables distance measurement in just 0.15 seconds, with a more precise measurement unit of 10 centimeters. It's also capable of measuring short putts with a minimum distance of 2 meters, 온라인섯다 as well as capturing targets up to 900 meters away.\nSimply press and hold the measurement button to automatically activate the Pin Finder function, which accurately measures the distance to the pin without distraction, even if there are obstacles around the target and pin. Vibration alerts let you know when you've hit the target, and it's water resistant to IPX4 so you can play in cloudy weather without worry. With a simple button switch (ON, OFF), the slope function calculates the incline and distance to the point you want to measure and gives you a calibrated distance to help you navigate the course.\nThe aim L30 Stabilized is GolfBuddy's top flagship lineup with a user-centered design, and its modern black and white color scheme is complemented by soft, high-quality leather. Each new model comes with an exclusive pouch made of Saffiano leather.\nFor more information and to purchase the new aim L30 Stabilized, please visit Golfzone Market, Golfzone's online store, Golfing, and GolfBuddy's Naver Brand Store. 고스톱\nby gostopsite_7882 on 2023-09-24 12:09:29\nNo comments yet.","domain":"optical_engineering"}
{"url":"http://newsletter.stsci.edu/webb-science-instruments-overview/","date":"2018-03-21T01:33:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647556.43/warc/CC-MAIN-20180321004405-20180321024405-00160.warc.gz","language_score":0.9034063220024109,"token_count":2244,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__184119206","lang":"en","text":"Webb Science Instruments Overview\nNikole Lewis, firstname.lastname@example.org\nThe James Webb Space Telescope offers a broad range of observing modes covering a wide wavelength range from the optical to the mid-infrared (0.6 to 28.5 microns). These modes will offer unprecedented photometric and spectroscopic performance to enable a broad range of astronomical science. The four Webb science instruments (Near-InfraRed Imager and Slitless Spectrograph [NIRISS], Near InfraRed Camera [NIRCam], Near InfraRed Spectrograph [NIRSpec], and Mid-Infrared Instrument [MIRI]) offer complimentary capabilities including multiple imaging and spectroscopic modes. An overview of instrument coverage appears in Figure 1.\nNIRCam has two modules, each with a field of view of 2.2 × 2.2 arcmin. Within each module, the light is split with a dichroic and sent to a short-wavelength (0.6–2.3 microns) and a long-wavelength (2.4–5 microns) channel, which observe simultaneously. The short-wavelength channel has a scale of 0.032 arcsec per pixel, which Nyquist samples the PSF at 2 microns. The long-wavelength channel has a pixel scale of 0.065 arcsec. Each channel has a selection of wide-, medium-, and narrow-band filters.\nNIRISS is capable of imaging from 0.8 to 5 microns with a field of view of 2.2 × 2.2 arcmin. NIRCam is the camera of choice for near-infrared imaging with Webb, since it has twice the field of view of NIRISS and obtains \"blue\" and \"red\" images simultaneously. The NIRISS filter set closely match available NIRCam filters, which enables NIRISS to increase the resultant sky coverage when used in parallel with NIRCam.\nMIRI provides broad-band (R ∼ 5) imaging from 5 to 27 microns over a field of view of 74 × 113 arcsecs, with a pixel scale of 0.11 arcsec.\nFor wavelengths between 1.7 and 5 microns, NIRCam has the capability to suppress the light from a bright target, with several different choices of apodized occulters. The coronagraphic observing mode includes Lyot stops to suppress the diffraction wings of the bright source, as well as neutral-density squares to allow accurate target acquisition on bright targets. Inner working angles are ∼4–6 λ/D. A fiducial contrast ratio is 10-5 to 10-6 at 2 microns for a source separation of 1 arcsec.\nFor observations from 5–28 microns, MIRI has four individual coronagraphs, one of which is based on the classic design of Lyot and three of which are based on four-quadrant phase masks (4QPMs). The classical Lyot coronagraph places an occulting spot in the focal plane to block the light from a bright point source from entering the instrument, resulting in an inner working angle of 2.1 arcsec. It is intended for observations at ∼23 microns.\nThe 4QPMs in MIRI use an optical element that retards the phase by π in two diagonally opposite quadrants. If a monochromatic source is placed exactly at the center of the resulting four-quadrant phase mask, the rejection is formally complete. Working with spectral bandpasses of ∼10%, the 4QPMs have inner working angles of 0.3–0.5 arcsec, with contrasts in the range 10–3–10–4 for a source separation of 1 arcsec.\nThrough the use of a non-redundant aperture mask (NRM), NIRISS provides Webb's highest-resolution imaging. The mask turns the full aperture of the telescope into an interferometric array such that each baseline (i.e., the vector linking the centers of two holes) is unique and forms fringes with a unique spatial frequency in the image plane. This observing capability is particularly useful for high-contrast imaging of sources around bright stars, as well as for measuring the structural properties of the nuclei of galaxies and star clusters. The NRM is designed to detect point sources that are separated by 0.1–0.5 arcsec with a brightness (contrast) ratio as small as 10–4–10–5. The resolution provided by the longest baseline is ∼0.075 arcsec at 4.6 microns. The NRM is optimized for observations through three medium-band filters from 3.5–5 microns, with observations possible as well through a broad-band filter at 2.8 microns.\nNIRSpec has one R ∼ 100 prism, three R ∼ 1000 gratings, and three R ∼ 2700 gratings. The prism covers 0.6–5.2 microns in one exposure or 1.0–5.2 microns with a long pass filter. The gratings are used in first order with four long pass filters to observe ∼0.7–1.2, ∼1.0–1.8, ∼1.7–3.0, or ∼2.9–5.2 microns without second-order contamination. Four exposures are required to cover 0.7–5.2 microns at R ∼ 1000 or R ∼ 2700.\nNIRISS has two R ∼ 150 grisms that disperse in orthogonal directions and one R ∼ 700 cross-dispersed grism. The R ∼ 150 grisms cover 0.8–2.8 microns. The cross-dispersed grism simultaneously covers 0.9–2.8 microns at R ∼ 700 in first order and 0.6–1.4 microns at R ∼ 1400 in second order before orders start to merge at longer wavelengths. One exposure is required to cover the full wavelength range with each disperser.\nNIRCam has two R ∼ 1450 grisms, in the long-wave channel, with orthogonal orientations. A grism is used with a broadband filter to observe 2.4–3.1, 2.4–4.0, 3.1–4.0, 3.9–4.3, or 3.9–5.0 microns. Two exposures are required to cover the full 2.4–5.0 micron wavelength range. Simultaneous photometry in the short-wave channel can be specified to complement long-wave channel grism observations.\nMIRI has one R ∼ 100 prism and twelve R ∼ 1500–3200 gratings that cover 5–29 microns. The prism covers 5–12 microns in one exposure. Only three exposures are required to cover the full wavelength range at medium spectral resolution because three dichroics are used to record spectra from four gratings simultaneously.\nTwo instruments have slits that can be used to observe a single object, while blocking light from other objects in the field of view. NIRSpec has five slits that can be used with any of the dispersers to observe a single object. Three of these slits are 0.2 × 3.3 arcsec in size, one is a 0.4 × 3.65 arcsec slit, and there is a 1.6 × 1.6 arcsec square aperture that is optimized for precise flux measurements of exoplanet host stars. MIRI has a 0.51 × 4.7 arcsec slit that can be used with the R ∼ 100 prism.\nThree instruments have slitless configurations that can be used to observe a relatively bright isolated source, such as an exoplanet host star, without variable slit losses. The NIRISS cross-dispersed R ∼ 700 grism covers 0.6–2.8 in one exposure. One NIRCam R ∼ 1450 grism covers 2.4–5.0 microns in two exposures. The MIRI R ∼ 100 prism covers 5–12 microns in a single exposure. In all cases, contamination from neighboring objects may be an issue for certain targets at certain telescope orientations.\nNIRISS can obtain slitless spectra of all objects in the field of view using the two R ∼ 150 grisms with orthogonal orientations and a direct image to facilitate spectral extraction. NIRCam has a similar capability at longer wavelengths (2.4–5 microns) and much higher spectral resolution (R ∼ 1450, hence much longer spectra).\nNIRSpec has a microshutter array (MSA) with a quarter million configurable shutters. These MSA shutters can be opened in columns to form mini spectral slits on targets of interest. This allows multiplexing spectroscopy of dozens to hundreds of targets, depending on target catalog density and observation selection constraints. Each individual shutter is 0.2 × 0.46 arcsec. Because the cadence of shutters is fixed, objects will not all be centered in their respective shutters. Observers will use a specialized tool to plan MSA observations. The MSA can be used with any of the 7 NIRSpec dispersers, but at R ∼ 2700 spectra of objects near one edge of the field of view will be truncated.\nIntegral Field Spectroscopy\nTwo instruments have integral field units (IFUs). The NIRSpec IFU has an image slicing design with 30 0.1 arcsec slices that sample the 3 × 3 arcsec field of view. The NIRSpec IFU can be used with any of the 7 dispersers and is optimized for three-dimensional imaging spectroscopy of spatially extended targets. The MIRI IFU feeds the 12 gratings four at a time using three dichroics. The field of view increases from about 4 × 4 arcsec at short wavelength to about 8 × 8 arcsec at long wavelengths. The fields of view in each wavelength interval are nested.\nThe Webb sensitivities reported in the plots below, in Figure 4, are the mission requirements: the minimum performance required of each instrument. This is a conservative approach and the on-orbit performance may be better. Expected performance of the instruments will be released in the Webb flight Exposure Time Calculator in January 2017. Sensitivities for other observatories are taken from instrument handbooks, online calculators, and published papers.\nFor additional and most up-to-date information on Webb instruments, observing modes, and performance visit: https://jwst.stsci.edu/instrumentation. A series of lectures and webinars regarding instrumentation and observing capabilities is discussed in an article by Christine Chen in this Newsletter (vol. 33, issue 3).","domain":"optical_engineering"}
{"url":"https://www.fzautoglassmc.com/rear-view-mirror-button-mounting-machine-product/","date":"2022-11-27T17:51:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710417.25/warc/CC-MAIN-20221127173917-20221127203917-00842.warc.gz","language_score":0.7369769811630249,"token_count":1028,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__74648778","lang":"en","text":"Rear View Mirror Button Mounting Machine\nFields Of Application: Automotive Glass\nMachine Type: Mirror button process machinery.\nUsage: Bonds mirror buttons to windshields\nGlass Required: Laminated windshields for vehicle\nModel NO.: FZMBS-A\nMaximum Glass Size: 1800*1250 mm Minimum Glass Size: 1100*500 mm\nGlass Thickness: 2mm – 8 mm\nOrientation Of Glasses: Wing Down\nDepth Of Bend: 10-200mm\nControl System: PLC\nAfter-sales Service Provided: Engineers Available To Service Machinery Overseas\nBrand: FUZUAN MACHINERY\nWarranty: 1 Years\nOrigin: Jiangsu, China\nPURPOSE/DESCRIPTION OF PROCESS\nIn the process of laminated windshield glass production, there are Rear-view mirror bracket, rain sensor bracket installation required. This line is specially designed for the laminated front windshields, automatic adhesion of the Mirror Buttons.\nThis proposal is a full automation type equipment.\nThe operation steps as below,\nGlass→Glass positioning conveyor→Press procedure→Glass surface preheating →Pre positioning etc. Process\nRobot catch mirror button element（Or operator manual put into the mould)→Press procedure→ Preheating button base element →visual system photo location→Position signal given to robot→Mirror button base element adhesion→After setting pressure and time→Finish the process→Glass out unloading\nAutomobile laminated windshield glass\nThe capacity for FZMBS-A: 25s/pc (Customized)\nThis Rear view mirror button station line mainly includes,\n● Glass positioning conveyor\n● CCD visual positioning system\n●Preheating and temperature measuring system for mirror button base\n●Glass unloading conveyor\nThe main frame material adopt square tube and aluminum. The glass transfer adopts adjustable belt.\nAfter the mirror button process completed, based on the normal standard mirror button process operation, the mirror button adhesion area is ≥50%.\n1.2 Technical Parameters\n|Maximum Glass Size||1800*1250 mm|\n|Minimum Glass Size||1100*500 mm|\n|Glass Thickness||2 mm– 8 mm|\n|Conveyor Height||850mm +/- 30 mm (Customized)|\n|Depth of Bend||10- 200mm|\n|Rear-view mirror bracket installation area||With clear identification mark|\n|Dimension||14970L*3400W*3100 mm (Customized)|\n|Voltage/Frequency||380V/50Hz 3ph (Customized)|\n|PLC Voltage PLC||220V|\n|Compressed air||0.6-0.7 Mpa|\n|Compressed Air Flow||2 cbm/min|\n● It equipped with a sensor at the entrance of conveyor, to detect the glass entrance and control equipment action.\n● Preheating system and infrared measurement control system at the entrance of conveyor, used to preheat the glass surface.\n● A set of preheating system and infrared measurement control system at the mirror button installation area, used to preheat the button base.\n● The X/Y/Z-axis pre-positioning clamping, adopts servo and cylinder control, it suitable for various specifications of glass pre-positioning.\n● A set of six-axis robot, which equipped with a multi-function mirror button bracket mounting mechanism, it is suitable for quick replacement of the button adhesion mould of different types.\n● Visual system and light source, to ensure a precise identification of adhesion position.\nRELATED PROCESSING LINE MACHINES\nAutomotive Laminated Windshield glass Production Machinery\n● Automatic Glass Loading Machine\n● Glass Cutting, Breaking, Grinding Machines\n● Flat Glass Washing And Drying Machine\n● Glass Silk Screen Printing, Drying And Cooling System\n● Talcum Powder Spraying Machine\n● Glass Bending Furnace\n● Curved Glass Washing And Drying Machine\n● PVB Assembly Line Automotive (PVB Film is sandwiched between 2 sheets of glass)\n● Vacuum De-airing process\n● Rear View Mirror Button Bracket\n● Glass Inspection Line\n● Glass packing","domain":"optical_engineering"}
{"url":"https://www.mrl.ucsb.edu/~vandewalle/lossmechanisms.php","date":"2019-03-21T18:51:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202530.49/warc/CC-MAIN-20190321172751-20190321194751-00253.warc.gz","language_score":0.8999832272529602,"token_count":1569,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__133319363","lang":"en","text":"Optical absorption loss processes in semiconductor lasers.\nA laser video projector operates by modulating three laser beams (red, green, and blue) to project an image without the need for a screen or optical lens. Semiconductor lasers, already very successful in optical storage applications, are an ideal solution for small and portable laser projectors. Although red and blue semiconductor lasers are widely available, green ones have only recently started to emerge. However, large internal losses limit their output power. This loss is primarily due to the overlap of the optical mode with the p-type layers of the device, but its exact origin is unclear. With this question in mind, we developed a computationally-tractable first-principles formalism to study free-carrier absorption in nitride materials and assess whether it could be the microscopic mechanism responsible for the loss. Our results show that the culprit for the optical loss is absorption by the high concentration of holes bound to non-ionized acceptor atoms (in this case Mg) in p-GaN. Although these bound holes do not contribute to the conductivity, they introduce empty states just above the valence band edge and enable optical absorption processes for every wavelength in the visible. These optical transitions are indirect, mediated by the electron-phonon-interaction which is particularly strong in the nitrides. Based on this finding, we proposed ways to reduce the absorption loss and increase the laser efficiency and power output.\nE. Kioupakis, P. Rinke, and C. G. Van de Walle, Determination of internal loss in nitride lasers from first principles, Appl. Phys. Express 3 (2010) 082101\nE. Kioupakis, P. Rinke, A. Schleiffe, F. Bechstedt, and C. G. Van de Walle, Free-carrier absorption in nitrides from first principles, Phys. Rev. B 81 (2010) 241201(R)\nAuger recombination and efficiency droop in nitride light emitters.\nLight-emitting diodes (LEDs) are efficient, non-toxic, and long-lasting white light sources that can replace incandescent and fluorescent light bulbs for general lighting applications. However, existing nitride-based white LEDs show a dramatic efficiency decrease when operated at the high powers required for general lighting, the origin of which is a matter of debate. Using a first-principles computational formalism that we developed, we found that the efficiency loss comes from Auger recombination, a three-carrier non-radiative recombination mechanism that dominates over the radiative process at high carrier densities. Contrary to other optoelectronic semiconductors, Auger recombination in the nitrides occurs via indirect processes, mediated by electron-phonon coupling and alloy scattering. Identifying the primary loss mechanism suggests device designs that reduce its impact and is the first step towards the engineering of efficient high-power LEDs.\nIn addition, we have investigated the interplay of polarization fields and nonradiative Auger recombination on the droop and green-gap problems. An important conclusion is that device designs that minimize the polarization fields lead to higher efficiency, not because the internal quantum efficiency is improved at a given carrier density but because they can be operated at a lower carrier density for a given current density.\nIn addition, investigations into the fundamentals of Auger recombination have continued, including studies of the influence of temperature, carrier density and quantum-well confinement.\n\"Researchers say they've solved the mystery of LED lighting \"Droop\"\", May 2011, Department of Energy blog\n\"LED lighting comes out of the dark\", April 2011, NERSC website\n\"UCSB theory blames indirect Auger recombination for nitride LED droop\", April 2011, Semiconductor Today\n\"Theorists claim to have solved LED droop puzzle\", April 2011, Compound Semiconductor\n\"LED efficiency puzzle reportedly solved\", April 2011, Photonics.com\n\"Theorists crack LED lighting performace problem\", April 2011, UCSB Engineering\n\"LED efficiency puzzle solved by UC Santa Barbara theorists\", April 2011, UCSB Center for Energy Efficient Materials\n\"LED efficiency puzzle solved by UC Santa Barbara theorists\", April 2011, UCSB Institute for Energy Efficiency\nAuger recombination in III-V semiconductors\nIn addition to III-nitrides, we are studying Auger recombination in traditional III-V materials. These materials are used in long-wavelength light emitters in the red and infrared. Also, studying these materials provides insight into the basic mechanisms of Auger recombination in materials, such as the relative importance of the direct and indirect process, as well as the phonon modes that mediate indirect Auger. We have performed calculations for GaAs. Surprisingly, even though GaAs has a smaller gap and a significantly different band structure compared to nitrides, the phonon-assisted indirect recombination is again found to be an important or even dominant contribution to the recombination rate; the direct (purely Coulomb-mediated) recombination is not sufficient to explain experimental Auger coefficients.\nD. Steiauf, E. Kioupakis, and C.G. Van de Walle, 1, 643 (2014).\nLoss due to Shockley-Read-Hall recombination at defects\nWe are exploring the microscopic origin of Shockley-Read-Hall (SRH) recombination in nitride light emitters, which limit the maximum internal quantum efficiency of the devices. A SRH recombination process consists of two carrier capture events: electron capture and hole capture. Thus, the study of carrier capture processes is a prerequisite to the study of SRH recombination. We have developed a practical first-principles methodology to calculate carrier capture coefficients based on parameters from hybrid functional calculations. These have been benchmarked with available experimental data for selected defects in GaN and ZnO, and have demonstrated excellent agreement.\nA. Alkauskus, Q. Yan, and C. G. Van de Walle, Phys. Rev. B 90, 075202 (2014). [Editor's suggestion]\nPhotoluminescence lineshapes of defects\nThough nonradiative transitions result in loss from Shockley-Read-Hall recombination, the experimental study of radiative transitions provides a lot of useful information about defect geometries, vibrational properties, etc. However it is often difficult to determine the chemical nature of defects responsible for a given experimental observation. Therefore, the ability to determine the luminescence properties of defects from first principles is a powerful tool for defect identification. We have developed a first-principles methodology to calculate luminescence lineshapes for defects with very strong electron-phonon coupling and extended it to treat the more complicated situation of defects with moderate electron-phonon coupling, which have lineshapes with more structure, and often many contributing phonon frequencies. We have benchmarked these techniques and now are using them to explore various defects in nitride materials and beyond.\nA. Alkauskas, J. Lyons, D. Steiauf, and C. Van de Walle, Phys. Rev. Lett., 109, 267401 (2012).\nA. Alkauskas, B. B. Buckley, D. D. Awschalom, and C. G. Van de Walle, New J. Phys. 16, 073026 (2014).\nBack to Van de Walle Group Home Page","domain":"optical_engineering"}
{"url":"http://notabs.org/canon/ef17-40/disassembly.html","date":"2024-02-21T04:37:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473370.18/warc/CC-MAIN-20240221034447-20240221064447-00747.warc.gz","language_score":0.9263975024223328,"token_count":398,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__15564684","lang":"en","text":"Canon EF17-40 before disassembly.\nRemove the 3 black screws attaching the plastic cover inside the mount.\nNow remove the plastic cover.\nPry out the inner plastic ring. A plastic bicycle tire tool is used in this\nHere the tabs that hold the plastic ring in place are visible.\nNext, detach the electrical contact block from the inner surface of the lens mount by removing these two screws.\nRemove 4 screws holding the lens mount (in this photo, the mount has rotated,\nhiding the threads).\nThe lens mount lifts off.\nDisconnect all 5 ribbon cables from the connector circuit board. Three have\nplastic locks that first must be pulled back.\nRemove the connector circuit board by removing 2 screws. Some sections of the ribbon cables are anchored with gum. Pull the ribbon cables away carefully.\nRemove 2 screws from the zoom control. They are under the plastic grip band.\nThe two screws anchor brass buckets that fit into the zoon ring.\nRemove 4 screws holding the outer lens casing.\nLift off the casing. Be careful with the ribbon cables.\nRemove the screws holding the front portion of the lens casing.\nRemove the front lens casing. There are two pieces. The smaller piece clips to the front lens element and moves as the lens is zoomed. The outer piece is stationary. The outer edge of the inner part contains a felt seal. The inner part can be snapped in as the very last step of reassembly. It can also be installed in the order removed. Study where the mounting clips seat so that it can be rotated to a position that lets it correctly snap into place.\nNow the front element is visible.\nNow the front element can be removed. Mine has developed strange spots that disassembly did not allow me to clean.\nThis is only partial disassembly of the lens. My aim was to clean the front element, so I did not disassemble further.","domain":"optical_engineering"}
{"url":"https://sites.tufts.edu/eeseniordesignhandbook/2015/leds-technology/","date":"2023-10-04T22:49:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511424.48/warc/CC-MAIN-20231004220037-20231005010037-00579.warc.gz","language_score":0.924683690071106,"token_count":3574,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__108321983","lang":"en","text":"In 2014 the Nobel prize for physics was awarded to a research team who invented a new kind of LED diode. Light emitting diodes (LEDs) have been around for ages, so what makes this new variant so special? This article discusses how LEDs work and what makes this light-emitting technology so special.\nLight Emitting Diodes – or LEDS for short – are a variety of semiconductor that generates light when current passes through it. First invented in 1962, LEDs have always been good as indication lights but for a long time their low levels or brightness kept them away from from traditional lighting applications. Due to recent developments in the technology they have started replacing incandescent light bulbs in everyday use. This article will introduce the LED, discuss the technology, applications, and why a certain LED was worthy of the 2014 Nobel prize in physics.\nLight has always been a necessity for life as we know it. For most creatures, early humans included, light came from the sun. The discovery of fire, an invention of mythological proportions brought about humanity’s first artificial and controllable light source, illuminating caves, little houses on the prairie, and big Victorian manors. The next milestone didn’t come for thousands of years at the invention of the incandescent light bulb. The incandescent bulb would reign supreme for about a century until fluorescent bulbs were invented, and then, finally, the led bulb.\nLED light bulbs have been gaining immense popularity in the past few years because they can be just as bright as incandescents, but with higher efficiency and a longer expected lifetime.\nBut there is a half-century unaccounted for during which LEDs existed but LED light bulbs did not. In the first few years LEDs could do no more than generate tiny, barely visible amounts of light; the idea of illuminating any real amount of space was completely infeasible. In general, LED bulbs lacked price efficiency and energy efficiency. The metric for measuring the efficiency of a light bulb is in lm/W, or lumens per watt. A lumen is a measure of light brightness over an area, and a watt is a measure of energy consumption. In layman’s terms, light efficiency is (brightness / energy).\nBefore we begin talking about light emitting diodes it would do us well to discuss the physics behind light itself. Light is a kind of electromagnetic wave. The everyday light that we think of as “Light” is actually only a narrow band on the electromagnetic spectrum. Other kinds of electromagnetic waves are radio waves, microwaves, x-rays and gamma rays. All of these are forms of light, but they are outside the visible spectrum so we do not see them as traditional light. The wavelength of the light will determine what kind of wave it is, and with in the visible light spectrum it will also determine the color of the light: As seen in Figure 2, Light with a wavelength of approximately 700nm will appear red, and light with a wavelength of approximately 400nm will appear blue or purple.\nThis means that if we have light of a specific wavelength, we will see it only in that color. Everyday objects have color because they reflect certain wavelengths of light more than others. A green apple reflects green light, a red fire hydrant reflects red light. If one shines red light on a green apple, the light is absorbed instead of reflected. White light is a composition of every color of light. When one shines white light on a green apple the green is reflected but the other colors are all absorbed. Therefore, the light coming off of the apple is green and the apple appears green to the human eye.\nLight Emission and the Bohr Model\nThere is no specific wavelength of visible light with the color white. This is because it is possible to generate different colors of light by combining multiple different wavelengths of light. White light is actually the equal combination of every wavelength of visible light. A typical light bulb with a whitish-yellow light happens when the light emits most colors of light, but emits more light with a yellow wavelength than others. The typical emission spectrum of a household light bulb can be seen below in Table 1. Our sun is also strong around the yellow spectrum, and other stars that appear red or blue have their corresponding color intensities.\nLEDs, on the other hand, only emit a handful of wavelengths of light. This is because the materials that LEDs are made of, unlike stars or incandescents, are only able to emit a certain few wavelengths when electrically excited. As Table 1 shows, different LEDs have different emission spectra: each with a very thin emission spectrum. LEDs only emit one color of light not because they have colored plastic over white light, but because they only emit light at a single wavelength.\nThe Bohr model of the atom explains how atoms emit various lights. A typical atom has some amount of both electrons and protons: typically these counts are are equal and they define the atom’s behavior. Typically, the electrons come in shells: each with a different associated energy.\nWhen the atom receives energy, (electrical, thermal, mechanical, etc) electrons can move out to higher energy shells. Then, when the electrons move back down to lower energy shells they release a specific wavelength of light. This is an oversimplification of the behavior, but the important takeaway is that there are only a few specific frequencies of light that can be emitted by atoms.\nThe typical operation of an incandescent light bulb can be seen in Figure 3. When electricity passes through a coil of a certain material, the electrons crash into the atoms of the material, exciting the atoms. Then, as the atoms lose energy, they emit light. Incandescent lights force electrons to higher energy levels, then when the electrons fall back down the light is emitted. However, incandescent lights brute force this process: there is no control over how the energy is absorbed and released. This means that the color of the light coming out of an incandescent bulb is essentially random, and the composition of all those random colors is the white light we see from those bulbs.\nLEDs generate light differently than incandescents. While incandescent filaments randomly and haphazardly throw out light of many wavelengths, LEDs go about the process in a much more regulated and refined way. Through a process known as recombination, electrons flowing in one direction combine with holes – a current that flows via the absence of electrons – flowing in the other direction. When these two currents meet, the electrons and the holes recombine, restoring the electrical neutrality of the conductor. The electrons will be in a higher energy level than the holes though, so as the electron falls down it emits exactly the right wavelength of light desired.\nDifferent LED colors are generated by controlling how far the electron falls into the hole it combines with. Different wavelengths of light are produced by different voltage potentials between the two currents. In general, the color and intensity of the light produced depends on the chemical makeup of the semiconductor. Infrared emitting LEDs, which emit a wavelength slightly longer than visible red light, were the first LEDs ever invented back in 1962. (Hall et al.) Infrared LEDs were first made of Gallium Arsenide (GaAs. By adding phosphorous to make GaP or Gallium Phosphide diodes, all sorts of other colors such as red green and yellow. A lot of work has gone into discovering new semiconductors that emit colors brighter or more efficiently, but for a very long time researchers struggled to make blue LEDs, let alone affordable blue light.\nBlue LEDs, White LEDs and Spectrum Adjustment\nFor a long time, scientists and researchers chased the holy grail that was the fabrication of blue or short wavelength LEDs. Green and red LEDs had already existed, but to build a white LED light blue would also be needed. The problem was that while blue LEDs could be made out of GaN, or Gallium Nitride, growing a pure crystalline lattice of the material proved exceptionally difficult. It wasn’t until 1989 that the first blue led appeared in research labs thanks to completely new fabrication techniques that introduced new levels of precision and control to the process. By 1992, the addition of Aluminum Gallium Nitride (AlGaN) and layers of Indium Gallium Nitride (GaInN) improved light efficiency tenfold. Since then, efficiency has improved tenfold again. For their efforts in this development, Isamu Akasaki, Hiroshi Amano and Shuji Nakamura were awarded the 2014 Nobel Prize in physics.\nAlone, a blue LED does not mean much. These days, pure blue leds are mostly used for power buttons or other decals and indicators. The invention of the blue LED was not important because it is blue, it is important because it enabled white colored LED light. When a red LED. A green LED and a blue LED are put in close proximity to each other and the light is diffused, the resulting color is a white led. And if only one or two of the LEDs are on, any color of light can be created. The other method of creating white light is known as spectrum adjustment.\nSpectrum adjustment happens when light is absorbed and then re-emitted again. By doing so, the color and appearance of the light can be altered. There is a caveat, however, that the light can only be shifted to larger wavelengths. If a material were able to absorb a long wavelength of light and emit the same amount of a shorter wavelength, this would violate the conservation of energy. This is why it was not possible to generate blue light from other diodes. However, the reverse process does in fact work: if a blue diode is passed thorough a yellow phosphor, the blue and yellow combine into a white light well suited for everyday tasks.\nLEDs in Everyday Applications\nBefore they were available as household lights, LEDs served as indicators in devices and continue to to this day. LEDs as indicators are an essential and powerful learning tool for beginner electronics: They provide immediate feedback as to if a circuit is properly working. In fact, one ofthe first programs that anyone learning the Arduino platform will write is called “blink” and all that it does is blink an LED.\nBeyond homes and headlights, LED lamps have started moving into city planning offices. Due to their efficiency and long lifetimes, LED street lamps have begun phasing into many cities across the globe, including Somerville, Arlington, and many other towns in Massachusetts. LEDs as lights is where the big breakthroughs have been in the past few years, so the primary question now is how many devices can we integrate LEDs into and how quickly can we integrate these bew lighting forms into society’s infrastructure.\nNow that LEDs have surpassed traditional lighting methods in terms of lifetime and efficiency, they have opened the floodgates of efficiency to other light-using technologies. LCD televisions, for example, once required large fluorescent lights that would be filtered through an LDC display to produce an image on screen. By using an array of white LEDs instead, not only is power usage drastically lowered, but it’s even possible to make higher contrast screens, by actually dimming the light in certain areas instead of just filtering it out.\nOn the subject of screens, some screens are made entirely of OLEDs – or organic LEDs. Rather than standard LEDs which typically have a small light-emitting area, OLEDs are made of many planar sheets that form a full surface capable of light emission. OLEDs reduce the thickness of devices and allow screens that are made of just LEDs – no LCD filter required. While the technologies and chemical compositions are different than normal LEDs, they are still relevant as one of the next big frontiers of LEDs.\nTo quote the Nobel Prize article on the invention: “Incandescent light bulbs had lit the 20th century; the 21st century will be lit by LED lamps.“ Compared to Incandescents lights, LEDs are better in almost every way. They have a smaller energy footprint, they have a longer lifespan and they can be put into a smaller package. Lights account for 19% of the energy that the whole world uses, and incandescent lights are only 5% effective. If all of that energy went into incandescent lights, that would mean over 18% of the world’s energy is immediately lost as heat. That’s a huge amount. LEDs are more expensive to create and manufacture but they pay for themselves in energy savings in no time at all.\nNew technology often struggles with mass adaption. However, thanks to the short lifespan of incandescent bulbs, the process of phasing them out is much easier than it could be. As energy usage rises worldwide, the integration of this technology could be key for butting back. Blue LEDs are not only for lighting, they also appear in the new LED and OLED based screens for televisions and phones. Upon closer inspection of many devices, LEDs much more prevalent and much more significant to everyday technology than one might think.\n- Akasaki, I. (2007). Key inventions in the history of nitride-based blue LED and LD 300(1). DOI: 10.1016/j.jcrysgro.2006.10.259\n- Aspense, D.E., Studna, A.A. (1983). Dielectric functions and optical parameters of Si, Ge, GaP, GaAs, GaSb, InP, InAs, and InSb from 1.5 to 6.0 eV. Phys. Rev. B 27(2). DOI: 10.1103/PhysRevB.27.985\n- Bergstrom, L., Delsing, P., L’Huillier, A., Inganas, O., Rose, J., Blue LEDs – Filling the world with new light. Retrieved from the Royal Swedish Academy of Sciences\n- Hall, R.N., Fenner, G.E., Kingsley, J.D., Soltys, T.J., Carlson, R.O. ( ). Coherent Light Emission from GaAs Junctions. Phys. Rev. Letters 9(9). DOI: 10.1103/PhysRevLett.9.366\n- Kalinowsk, J., Di Marco, P., Fattori, V., Giuletti, L., Cocchi, M., (1998). Voltage-induced evolution of emission spectra in organic light-emitting diodes. Journal of Applied\nPhysics, 4242-4242. DOI: 10.1063/1.367181\n- Kamtekarm, K., Monkman, A., Bryce, M., (2009) Recent Advances in White Organic Light-Emitting Materials and Devices (WOLEDs). Adv. Mater. 2010, 22, 572–582. DOI: 10.1002/adma.200902148\n- Park, J., Lee J.H., Raju, S.R., Moon, B.K., Jeong, J.H., Choi, B.C., Kim, J.H. (2014). Ceramics International, 40(4). DOI: 10.1016/j.ceramint.2013.11.007\n- Sato, T., Imai, M.(2002). Characteristics of Nitrogen-Doped GaAsP Light-Emitting Diodes. Jpn. J. Appl. Phys. DOI: 10.1143/JJAP.41.5995\nSearch the Handbook:\n- Introduction and Acknowledgements\n- Senior Capstone Projects Summary for the 2022-23 Academic Year\n- Senior Capstone Projects Summary for the 2021-22 Academic Year\n- Senior Capstone Projects Summary for the 2020-21 Academic Year\n- Senior Capstone Projects Summary for the 2019-20 Academic Year\n- Senior Capstone Projects Summary for the 2018-19 Academic Year\n- Senior Capstone Projects Summary for the 2017-18 Academic Year\n- Senior Capstone Projects Summary for the 2016-17 Academic Year\n- Senior Capstone Projects Summary for the 2015-16 Academic Year\n- Senior Capstone Projects Summary for the 2014-15 Academic Year\n- Senior Capstone Projects Summary for the 2013-14 Academic Year\n- Senior Capstone Projects Summary for the 2012-13 Academic Year\n- 1. Design Process\n- 2. Management\n- 3. Technologies\n- 4. Communications And Life Skills\n- 5. Tech Notes\nTop TopicsApple iPhone Assistive Technologies Big Data Bridge Inspection Business Strategy Communications Computer Vision Consumer Technologies Cough detection Creativity & Innovation Data Analysis Design for X Emergency resource management Emerging Technologies Encryption Engineering Economics Ethics GPS Indoor Navigation Industrial Technologies Internet of Things Interpersonal Skills Legal & Intellectual Property Marketing & Customer Research Mobile Applications OpenCV Product Development Life Cycle Product Liability Prototyping & Manufacturing Recommender System Remote Keyless Entry Risk Risk Management Security Sensors Signal Processing Societal Impact Synthetic Aperture Radar Tuberculosis UAV Drones UAV Motion Unmanned Technologies Virtual Reality Visual Impairment Wireless","domain":"optical_engineering"}
{"url":"https://www.visionlearning.es/projects/thermal-hand-gesture-recognition","date":"2023-09-24T11:00:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506632.31/warc/CC-MAIN-20230924091344-20230924121344-00784.warc.gz","language_score":0.8914334774017334,"token_count":184,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__7197837","lang":"en","text":"Thermal hand gesture recognition\nHuman-Machine interfaces (HMI) based on hand gesture recognition allow natural, intuitive, and simple communication. Among the different existing technologies, the computer vision stands out for not being intrusive or invasive: the user has not to wear sensors or any additional hardware, providing a great interactivity experience.\nIn this project, a visual hand-gesture recognition system using very low resolution infrared imagery has been developed. This kind of images has a lot of competitive advantages over the images taken in the visible light spectrum, due to the better signal-interference ratio and independency of the illumination conditions. The main challenges are: the low resolution of the thermal images (80x60) and the reduced hand size inside the image (it only occupies about a 10% of the image). The developed system is based on deep learning algorithms, using Convolutional Neural Networks with a ResNet architecture.","domain":"optical_engineering"}
{"url":"https://www.jeos.eg.net/article.asp?issn=2090-0686;year=2016;volume=109;issue=4;spage=145;epage=152;aulast=Abozaid","date":"2023-01-31T23:34:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499891.42/warc/CC-MAIN-20230131222253-20230201012253-00454.warc.gz","language_score":0.8221291303634644,"token_count":8807,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__90349435","lang":"en","text":"|Year : 2016 | Volume\n| Issue : 4 | Page : 145-152\nThe use of adaptive optics for retinal imaging with microscopic resolution\nMortada A Abozaid\nDepartment of Ophthalmology, Faculty of Medicine, Sohag University, Sohag, Egypt\n|Date of Submission||07-Dec-2016|\n|Date of Acceptance||27-Feb-2017|\n|Date of Web Publication||19-Apr-2017|\nMortada A Abozaid\nDepartment of Ophthalmology, Faculty of Medicine, Sohag University, Sohag\nSource of Support: None, Conflict of Interest: None\nAdaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of optical aberrations. Adding AO to retinal imaging tools allows noninvasive direct visualization of the photoreceptor cells, capillaries, and nerve fiber bundles by correcting the eye’s monochromatic aberrations. AO can provide new information on the early pathological changes of the retinal microstructures in various retinal diseases, can also monitor response to novel treatments at the cellular level, and can help better select candidates for such treatments. This review discusses the basics, clinical applications, and challenges of AO retinal imaging.\nKeywords: adaptive optics, high resolution, noninvasive, retinal imaging\n|How to cite this article:|\nAbozaid MA. The use of adaptive optics for retinal imaging with microscopic resolution. J Egypt Ophthalmol Soc 2016;109:145-52\n| Introduction|| |\nThe benefits of adaptive optics (AO) were known long before the technology was available for retinal imaging . The original problem was of image degradation arising in ground-based telescopes owing to turbulence in the earth’s atmosphere. The US army appreciated the benefits of this and funded programs during the 1970s and 1980s to develop the technology for imaging foreign satellites with ground-based telescopes . Much of the military’s information was declassified in 1992 after dissolution of the Soviet Union, a move that accelerated progress for all nonmilitary applications of AO. In 1996, AO were successfully applied to high-resolution imaging in the human eye .\nAO imaging can provide clinicians with high-resolution views of the retina which allow better understanding of the early pathological changes of the retinal microstructures in various retinal diseases in addition to tracking of disease progression and following treatment response with greater sensitivity and over a much shorter time than other outcome measures such as visual acuity and visual field sensitivity.\nAdaptive optics components\nAO is a technology used to improve the performance of optical systems by reducing the effects of optical aberrations. By correcting the eye’s monochromatic aberrations, AO provides nearly diffraction-limited high-resolution imaging of the retina. AO by itself does not provide a retinal image, rather an AO subsystem must be incorporated into an existing imaging device, for example, flood illumination fundus camera, confocal scanning laser ophthalmoscope, or spectral-domain optical coherence tomography (OCT), with each modality having its own advantages and limitations.\nAO retinal imaging system has three main components: a wavefront sensor, a corrective (adaptive) element, and a control system ([Figure 1]). The wavefront sensor (mostly a Hartman–Shack design) is used to measure the aberrations of the eye. The corrective element is used to compensate for these aberrations, most commonly by using a deformable mirror, which relies on a series of piezoelectric actuators to deflect the mirror surface. The third main component, a software system, controls the interaction between the wavefront sensor and the corrective element .\n|Figure 1 Schematic diagram of an adaptive optics retinal imaging system .|\nClick here to view\nRetinal structures visible with adaptive optics\nCone photoreceptors serve as relatively easy targets for AO imaging because of the unique waveguiding properties of their outer segments. In fact, in eyes of good optical quality, it is possible to resolve cone photoreceptors without the use of AO ,. The first images of the cone mosaic were published in 1996, using a conventional fundus camera equipped with AO ,. One of the first observations was then made in patients with color vision deficit, where AO found a reduction of one type of cones rather than total absence of particular cone type as previously thought . Another significant observation was that both cones and rods vary in their intensity over time ,. AO imaging efforts usually focus on analyzing the cone density and spacing ,,,,,,,,. In addition, assessment of mosaic geometry and regularity may detect more subtle changes of the photoreceptors .\nRecently, Scoles et al.  developed a new ‘split-detector’ adaptive optics scanning laser ophthalmoscope (AOSLO) method to directly visualize the cone inner segment structures in a manner independent of the waveguide properties of the photoreceptor (which conventional confocal AOSLO imaging relies on) ([Figure 2]).\n|Figure 2 Confocal (a) and split-detector (b) adaptive optics scanning laser ophthalmoscope images of the photorecetotors of the left eye of a normal patient (JC_10329), taken at ∼7° eccentricity (scale bar 20 µm, crop 150×150 µm).|\nClick here to view\nThe difficulties in rod imaging are attributed to their small diameter (∼2 µm)  and poor waveguiding properties compared with cones ,,. Dubra et al.  were the first to image the smallest photoreceptors, the cones at the foveal center and the rods, using AOSLO. Rods are of great importance as they are the most abundant of photoreceptors and are often the first cells to get disrupted in many types of retinal disease.\nApart from the photoreceptors, the retinal pigment epithelium (RPE) cells can be seen using reflectance-based AO imaging . Also, with AO, we can observe individual leukocytes moving through small retinal blood vessels, which allows imaging of the parafoveal capillary network and measurement of leukocyte velocity without contrast dyes . In addition, AO can be used to identify individual nerve fiber bundles and provide high-resolution images of both the retinal nerve fiber layer (RNFL) and the optic nerve head ,,.\nClinical retinal imaging with adaptive optics\nRetinal dystrophies represent a heterogeneous group of retinal degenerations which all produce progressive death of the photoreceptors. The first published application of AO to image human retinal pathology was in 2000, where images, with microscopic resolution comparable with that of histology, from a patient with cone-rod dystrophy were presented and revealed a reduction in cone density .\nPatients with RP and cone-rod dystrophy show different patterns of cone loss in AO images; primary cone degenerations cause increased cone spacing centrally, whereas cone-rod degeneration causes cone cell death adjacent to scotomas beginning around 10° eccentric to fixation, the retinal region with the highest density of rods  ([Figure 3]).\n|Figure 3 Confocal (a) and split-detector (b) adaptive optics scanning laser ophthalmoscope images of the right eye of a patient with retinitis pigmentosa (KS_10070), taken at ∼7° eccentricity (scale bar 20 µm, crop 150×150 µm) .|\nClick here to view\nBecause the rate of disease progression is typically slow in inherited retinal degenerations, it is estimated that patients with RP, for example, must be monitored for 7–10 years before standard clinical measures of visual function, such as visual acuity and visual field sensitivity, to show significant evidence of disease progression ,.\nTalcott et al.  monitored the cone mosaic using AOSLO in three patients with retinitis pigmentosa undergoing an experimental treatment with sustained-release of ciliary neurotrophic factor over 24 months and revealed a relative preservation of cone structure despite an absence of significant functional improvement as shown by significant differences in cone spacing between the treated eye and the fellow sham treated eye. This study suggests that AO-based imaging tools could provide sensitive anatomical outcome measures for clinical trials, providing more immediate feedback as to whether the therapeutic intervention has positively affected retinal structure or not.\nIn addition, assessment of the relative integrity of the photoreceptor mosaic may be useful for identifying individuals who may be good candidates for experimental therapies, such as gene therapy, and may permit specific areas of retained photoreceptor structure to be targeted for treatment .\nAO imaging in patients and carriers with choroideremia demonstrated abnormalities of cone morphology and spacing, suggesting simultaneous RPE and photoreceptor cell degeneration. Such findings provide insight into the effect of choroideremia mutations on macular retinal structure, with implications for the development of future treatments .\nAOSLO images of patients with X-linked retinoschisis revealed increased cone spacing and abnormal packing in the macula with near-normal cone coverage and function outside the central foveal schisis cavities. The limitation of degeneration of cone photoreceptors to regions near the anatomic fovea affected by large schisis cavities makes therapies for X-linked retinoschisis to be more likely to succeed than therapies for retinal degenerations that cause photoreceptor degeneration diffusely and directly .\nIn both dog and mouse models of achromatopsia, it was shown that cone function could be restored using a gene therapy approach ,,,. Translation of this specific approach to human trials requires that some cone cells remain intact. AO imaging of patients with achromatopsia revealed a substantial number of foveal and parafoveal cone photoreceptors with apparently intact inner segments .\nA major obstacle that faces the use of AO in clinical trials is the need for assessing the reliability and repeatability of cone density measurements in these patients before subjecting them to novel treatments  ([Figure 4]).\n|Figure 4 Confocal (a, b) and split-detector (c, d) adaptive optics scanning laser ophthalmoscope images of two patients with achromatopsia; JC_10069 (a, c) and MM_0005 (b, d) .|\nClick here to view\nAlbinism is an inherited disorder of melanin biosynthesis and is associated with a disruption in normal retinal development, with foveal hypoplasia (absence of a foveal pit) being the predominant ocular phenotype.\nMarmor et al.  used AO to image the parafoveal cones in four patients with unspecified foveal hypoplasia. They observed ‘normal’ cone specialization (cone packing and outer nuclear layer thickening); however, no quantitative analysis was provided.\nMcAllister et al.  examined six individuals with albinism and found variation in the degree of foveal hypoplasia and corresponding variation in foveal cone specialization (measuring cone packing gradients and foveal outer segment lengthening).\nWilk et al.  showed a wide range of foveal morphology and foveal cone specialization in patients with albinism and concluded that although a foveal pit is not required for foveal cone specialization, it may facilitate further cone packing.\nGlaucoma is the leading cause of irreversible, preventable blindness worldwide. Primary open-angle glaucoma is a chronic optic neuropathy characterized by progressive loss of retinal ganglion cells, usually associated with ocular hypertension . AO imaging tools can visualize both the RNFL and lamina cribrosa with high resolution ,,,.\nAkagi et al.  noted that the laminar pore area was affected by axial length and intraocular pressure. Nadler et al.  showed regional differences in microarchitecture in healthy lamina cribrosa as obtained in-vivo using three-dimensional AO-OCT scans. Such structural variation should prove useful in further evaluation of the role of lamina cribrosa microarchitecture in glaucoma .\nChen et al.  showed that the details near the borders between OCT measured RNFL thickness within and outside normal limits can be visualized with AOSLO. Details in these regions are difficult or impossible to see using OCT scans or to measure using perimetry. They concluded that AOSLO may have a role in clinical trials needing a measure of progression . Moreover, Hood et al.  showed that relatively similar 10–2 defects with similar OCT RNFL thickness profiles can have very different degrees of RNF bundle damage as seen on OCT and AOSLO.\nAO may help recognize early glaucomatous damages and identify patients who may progress rapidly and also may benefit from more intensive observation and management.\nIn addition, AO imaging can have an important role in the evaluation of benefits of the neuroprotective agents.\nDiabetic retinopathy (DR) is a microangiopathy resulting from blood rheological abnormalities because of chronic hyperglycemia ,,.\nRather than purely a vascular disease, it is now considered a neurovascular disorder. The neurodegeneration in DR consists of apoptosis affecting the photoreceptors, bipolar cells, and ganglion cells ,. AO imaging can provide noninvasive images of the retinal microvascular damages in patients with DM without the need of contrast agents, by detecting microaneurysms, increased foveal avascular zone (FAZ) size, and dropout of capillaries at the edge of the FAZ ,,. Tam et al.  evaluated the parafoveal capillary network in 15 patients with type 2 diabetes and no retinopathy. They showed a higher tortuosity of the arteriovenous channels in eyes of patients with diabetes and no DR than in healthy controls . In a follow-up study, assessment of the capillaries near the FAZ showed microaneurysm formation and disappearance as well as the de novo formation of tiny capillary bends similar in appearance to intraretinal microvascular abnormalities . Sun et al.  reported disruption of the cone photoreceptor mosaic in patients with type 1 diabetes using AOSLO.\nHan et al.  used AO to visualize photoreceptors after macular laser photocoagulation with pattern laser and noted no evidence of reduced photoreceptor density around the laser lesions, no apparent size reduction of the lesions relative to the initial application diameters, and thus, no direct evidence of photoreceptor migration or healing was found.\nBurns et al.  used large aperture AOSLO imaging to visualize directly numerous capillary abnormalities in patients with mild and moderate nonproliferative diabetic retinopathy, and suggested that these changes could contribute to the variability in response to treatment in diabetic patients and could be useful for improving clinical classification of diabetic patients, better understanding of the mechanisms of DR, and development of more effective therapies through better patient monitoring of pharmacological intervention.\nAge-related macular degeneration\nAge-related macular degeneration (AMD) is a multifactorial disease involving ocular, systemic, and genetic risk factors that can cause severe vision loss owing to either tissue loss in the macula or development of subfoveal choroidal neovascular membranes. AMD is the leading cause of blindness in the elderly across the developed world .\nAlthough the changes in late stages of AMD are known, it is important to detect very early stages of the disease to predict its course ,. AO imaging can monitor drusen over time and assess their effect on the overlying photoreceptor mosaic. Preservation of cones over the drusen was observed in a patient with early-onset large colloid drusen , as well as in a patient with basal laminar drusen . Boretsky et al.  identified several small drusen deposits that were not observed with wide-field fundus imaging or spectral-domain OCT in early AMD. They also investigated large coalescent drusen and areas of geographic atrophy in advanced stages of dry AMD and showed a significant decrease in photoreceptor density. Nakashima et al.  showed disruptions of the photoreceptor mosaic outside the clinically visible geographic atrophy lesions and tracked the progression of the geographic atrophy (GA) lesions over time.\nSoudry et al.  measured cone spacing at the margin of GA and over drusen in eyes with non-neovascular AMD and found that cone spacing was normal at baseline and remained normal over time. However, these regions showed focal areas of abnormal morphologic features and decreased cone reflectivity suggesting that changes in cone spacing may not represent a primary structural change in AMD progression .\nChallenges to adaptive optics imaging\nAlthough established as a powerful research tool, AO still lacks a widespread clinical use. This is owing to lack of clinical access and availability because of the high cost, large size of the imaging machine, and the time and expertise required for acquisition registration, montaging, and quantitative analysis of the images obtained by AO. However, numerous compact designs and commercial clinical prototypes have been developed ,,,,, and some companies having developed AO machines (Boston Micromachines Corporation).\nPatient factors, such as unstable fixation, small pupil size, and media opacities, can add to the difficulties with image stabilization and light scatter, resulting in image blur. Another challenge facing AO technology is the need for characterizing the properties of normal photoreceptor mosaic, with establishment of normative databases for the cone density and spacing and mosaic geometry. Such databases are critical to detect deviation from normality. Similar databases are also needed for quantifying blood flow, determining capillary density, measuring RNFL bundles, measuring lamina cribrosa pore size, and assessing intrinsic RPE autofluorescence. Many studies to assess the reliability and repeatability of methods used to quantify these variables are also needed.\nIn addition, there is a lack of systematic studies that examine the same diseases with different AO imaging modalities (flood, SLO, and OCT) to detect the relative information provided by each modality and hence the advantages and disadvantages of each, which would certainly vary on a disease-by-disease basis.\n| Conclusion|| |\nAlthough there are many challenges to the clinical application of AO retinal imaging, the current opportunities are many. The early diagnosis of retinal diseases and the monitoring of treatment efficacy at a cellular level provides promising clinical applications of AO technology. The use of AO imaging in clinical trials could potentially enable targeting of treatments to specific patients or specific retinal areas and allow for more sensitive evaluation of treatment effects.\nThe author thanks Joseph Carroll, PhD, Lynn Sun, MD, PhD, and Christopher S. Langlo, MD, Eye Institute, Medical College of Wisconsin, Milwaukee, USA, for providing the figures.\nFinancial support and sponsorship\nConflicts of interest\nThere are no conflicts of interest.\n| References|| |\nBabcock HW. The possibility of compensating astronomical seeing. Pub Astr Soc Pac 1953; 65:229–236.\nBenedict R, Breckinridge JB, Fried DL. Atmospheric-compensation technology: introduction. J Opt Soc Am 1994; 11:257–262.\nLiang J, Williams DR, Miller D. Supernormal vision and high-resolution retinal imaging through adaptive optics. J Opt Soc Am A Opt Image Sci Vis 1997; 14:2884–2892.\nCarroll J, Kay DB, Scoles D, Dubra A, Lombardo M. Adaptive optics retinal imaging – clinical opportunities and challenges. Curr Eye Res 2013; 38:709–721.\nGodara P, Dubis AM, Roorda A, Duncan JL, Carroll J. Adaptive optics retinal imaging: emerging clinical applications. Optom Vis Sci 2010; 87:930–941.\nMiller DT, Williams DR, Morris GM, Liang J. Images of cone photoreceptors in the living human eye. Vision Res 1996; 36:1067–1079.\nPircher M, Kroisamer JS, Felberer F, Sattmann H, Gotzinger E, Hitzenberger CK. Temporal changes of human cone photoreceptors observed in vivo with SLO/OCT. Biomed Opt Express 2010; 2:100–112.\nCarroll J, Neitz M, Hofer H, Neitz J, Williams DR. Functional photoreceptor loss revealed with adaptive optics: an alternate cause of color blindness. Proc Natl Acad Sci USA 2004; 101:8461–8466.\nJonnal RS, Besecker JR, Derby JC, Kocaoglu OP, Cense B, Gao W et al.\nImaging outer segment renewal in living human cone photorecptors. Opt Express 2010; 18:5257–5270.\nCooper RF, Dubis AM, Pavaskar A, Rha J, Dubre A, Carrol J. Spatial and temporal variation of rod photoreceptor reflectance in the human retina. Biomed Opt Express 2011; 2:2577–2589.\nChui TY, Song H, Burns S. Individual variations in human cone photoreceptor packing density: variations with refractive error. Invest Ophthalmol Vis Sci 2008; 49:4679–4687.\nLi KY, Tiruveedhula P, Roorda A. Intersubject variability of foveal cone photoreceptor density in relation to eye length. Invest Ophthalmol Vis Sci 2010; 51:6858–6867.\nChui TY, Song H, Burns SA. Adaptive-optics imaging of human cone photoreceptor distribution. J Opt Soc Am A Opt Image Sci Vis 2008; 25:3021–3029.\nSong H, Chui TYP, Zhong Z, Elsner AE, Burns SA. Variation of cone photoreceptor packing density with retinal eccentricity and age. Invest Ophthalmol Vis Sci 2011; 52:7376–7384.\nCurcio CA, Sloan KR, Kalina RE, Hendrickson AE. Human photoreceptor topography. J Comp Neurol 1990; 292:497–523.\nCurcio CA, Sloan KR. Packing geometry of human cone photoreceptors: variation with eccentricity and evidence of local anisotropy. Vis Neurosci 1992; 9:169–180.\nCurcio CA, Sloan KR, Packer O, Hendrickson AE, Kalina RE. Distribution of cones in human and monkey retina: individual variability and radial asymmetry. Science 1987; 236:579–582.\nØsterberg GA. Topography of the layer of rods and cones in the human retina. Acta Ophthalmol 1935; 13:1–97.\nJonas JB, Schneider U, Naumann GO. Count and density of human retinal photoreceptors. Graef Arch Clin Exp Ophthal 1992; 230:505–510.\nSun JK, Prager S, Radwan S, Ramsey DJ, Silva PS, Kwak H et al.\nPhotoreceptor mosaic changes in diabetic eye disease assessed by adaptive optics scanning laser ophthalmoscopy (AOSLO). Invest Ophth Vis Sci 2012; 53:4647.\nScoles D, Sulai YN, Langlo CS, Fishman GA, Curcio CA, Carroll J, Dubra A. In vivo imaging of human cone photoreceptor inner segments. Invest Ophthamol Vis Sci 2014; 55:4244–4251.\nPolyak SL. The retina: the anatomy and the histology of the retina in man, ape, and monkey, including the consideration of visual functions, the history of physiological optics, and the histological laboratory technique. Chicago, IL: The University of Chicago Press; 1941.\nAlpern M, Ching CC, Kitahara K. The directional sensitivity of retinal rods. J Physiol 1983; 343:577–592.\nVan Loo JA Jr, Enoch JM. The scotopic Stiles-Crawford effect. Vision Res 1975; 15:1005–1009.\nNordby K, Sharpe LT. The directional sensitivity of the photoreceptors in the human achromat. J Physiol 1988; 399:267–281.\nDubra A, Sulai Y, Norris JL, Cooper RF, Dubis AM, Williams DR, Carroll J. Noninvasive imaging of the human rod photoreceptor mosaic using a confocal adaptive optics scanning ophthalmoscope. Biomed Opt Express 2011; 2:1864–1876.\nRoorda A, Zhang Y, Duncan JL. High-resolution in vivo imaging of the RPE mosaic in eyes with retinal disease. Invest Ophthalmol Vis Sci 2007; 48:2297–2303.\nRoorda A, Romero-Borja F, Donnelly W 3rd, Queener H, Hebert T, Campbell M. Adaptive optics scanning laser ophthalmoscopy. Opt Express 2002; 10:405–412.\nTakayama K, Ooto S, Hangai M, Arakawa N, Oshima S, Shibata N et al.\nHigh-Resolution imaging of the retinal nerve fiber layer in normal eyes using adaptive optics scanning laser ophthalmoscopy. PLoS One 2012; 7:e33158.\nHuang G, Qi X, Chui TY, Zhong Z, Burns SA. A clinical planning module for adaptive optics SLO imaging. Optom Vis Sci 2012; 89:593–601.\nKocaoglu OP, Cense B, Jonnal RS, Wang Q, Lee S, Gao W, Miller DT. Imaging retinal nerve fiber bundles using optical coherence tomography with adaptive optics. Vis Res 2011; 51:1835–1844.\nRoorda A. Adaptive optics ophthalmoscopy. J Refract Surg 2000; 16:S602–S607.\nDuncan JL, Zhang Y, Gandhi J, Nakanishi C, Othman M, Branham KE et al.\nHigh-resolution imaging with adaptive optics in patients with inherited retinal degeneration. Invest Ophthalmol Vis Sci 2007; 48:3283–3291.\nSun LW, Johnson RD, Langlo C, Cooper RF, Razeen M, Russillo MC et al.\nAssessing photoreceptor structure in retinitis pigmentosa and usher syndrome. Invest Ophthalmol Vis Sci 2016; 57:2428–2442.\nGrover S, Fishman GA, Anderson RJ, Alexander KR, Derlacki DJ. Rate of visual field loss in retinitis pigmentosa. Ophthalmology 1997; 104:460–465.\nFishman GA, Bozbeyoglu S, Massof RW, Kimberling W. Natural course of visual field loss in patients with Type 2 Usher syndrome. Retina 2007; 27:601–608.\nTalcott KE, Ratnam K, Sundquist SM, Lucero AS, Lujan BJ, Tao W et al.\nLongitudinal study of cone photoreceptors during retinal degeneration and in response to ciliary neurotrophic factor treatment. Invest Ophthalmol Vis Sci 2011; 52:2219–2226.\nJacobson SG, Aleman TS, Cideciyan AV, Sumaroka A, Schwartz SB, Windsor EA et al.\nIdentifying photoreceptors in blind eyes caused by RPE65 mutations: Prerequisite for human gene therapy success. Proc Natl Acad Sci USA 2005; 102:6177–6182.\nSyed R, Sundquist SM, Ratnam K, Zayit-Soudry S, Zhang Y, Crawford JB et al.\nHigh-resolution images of retinal structure in patients with choroideremia. Invest Ophthalmol Vis Sci 2013; 54:950–961.\nDuncan JL, Ratnam K, Birch DG, Sundquist SM, Lucero AS, Zhang Y et al.\nAbnormal cone structure in foveal schisis cavities in X-linked retinoschisis from mutations in exon 6 of the RS1 gene. Invest Ophthalmol Vis Sci 2011; 52:9614–9623.\nAlexander JJ, Umino Y, Everhart D, Chang B, Min SH, Li Q et al.\nRestoration of cone vision in a mouse model of achromatopsia. Nat Med 2007; 13:685–687.\nKomaromy AM, Alexander JJ, Chiodo VA, Hauswirth WW, Acland GM, Aguirre GD. Cone directed gene therapy with rAAV leads to restoration of cone function in a canine model of achromatopsia. Invest Ophth Vis Sci 2007; 48:4614.\nKomaromy A, Alexander JJ, Rowlan JS, Garcia MM, Chiodo VA, Kaya A et al.\nGene therapy rescues cone function in congenital achromatopsia. Hum Mol Genet 2010; 19:2581–2593.\nCarvalho LS, Xu J, Pearson R, Smith AJ, Bainbridge JW, Morris LM et al.\nLong-term and age-dependent restoration of visual function in a mouse model of CNGB3-associated achromatopsia following gene therapy. Hum Mol Genet 2011; 20:3161–3175.\nAbozaid MA, Langlo CS, Dubis AM, Michaelides M, Tarima S, Carroll J. Reliability and repeatability of cone density measurements in patients with congenital achromatopsia. Adv Exp Med Biol 2016; 854:277–283.\nMarmor MF, Choi SS, Zawadzki RJ, Werner JS. Visual insignificance of the foveal pit: reassessment of foveal hypoplasia as fovea plana. Arch Ophthalmol 2008; 126:907–913.\nMcAllister JT, Dubis AM, Tait DM, Ostler S, Rha J, Stepien KE et al.\nArrested development: high-resolution imaging of foveal morphology in albinism. Vision Res 2010; 50:810–817.\nWilk MA, McAllister JT, Cooper RF, Dubis AM, Patitucci TN, Summerfelt P et al.\nRelationship Between Foveal Cone Specialization and Pit Morphology in Albinism. Invest Ophthalmol Vis Sci 2014; 55:4186–4198.\nQuigley HA. Glaucoma. Lancet 2011; 377:1367–1377.\nScoles D, Gray DC, Hunter JJ, Wolfe R, Gee BP, Geng Y et al.\nIn-vivo imaging of retinal nerve fiber layer vasculature: imaging − histology comparison. BMC Ophthalmol 2009; 9:9.\nIvers KM, Li C, Patel N, Sredar N, Luo X, Quenner H et al.\nReproducibility of measuring lamina cribrosa pore geometry in human and nonhuman primates with in vivo adaptive optics imaging. Invest Ophth Vis Sci 2011; 52:5473–5480.\nAkagi T, Hangai M, Takayama K, Nonaka A, Ooto S, Yoshimura N. In vivo imaging of lamina cribrosa pores by adaptive optics scanning laser ophthalmoscopy. Invest Ophthalmol Vis Sci 2012; 53:4111–4119.\nNadler Z, Wang B, Schuman JS, Ferguson RD, Patel A, Hammer DX et al.\nIn vivo three-dimensional characterization of the healthy human lamina cribrosa with adaptive optics spectral-domain optical coherence tomography. Invest Ophthalmol Vis Sci 2014; 55:6459–6466.\nChen MF, Chui TYP, Alhadeff P, Rosen RB, Ritch R, Dubra A et al.\nAdaptive optics imaging of healthy and abnormal regions of retinal nerve fiber bundles of patients with glaucoma. Invest Ophthalmol Vis Sci 2015; 56:674–681.\nHood DC, Chen MF, Lee D, Epstein B, Alhadeff P, Rosen RB et al.\nConfocal adaptive optics imaging of peripapillary nerve fiber bundles: implications for glaucomatous damage seen on circumpapillary OCT scans. Trans Vis Sci Tech 2015; 4:12.\nCunha-Vaz JG. Pathophysiology of diabetic retinopathy. Br J Ophthalmol 1978; 62:351–355.\nKern TS, Engerman RL. Vascular lesions in diabetes are distributed non-uniformly within the retina. Exp Eye Res 1995; 60:545–549.\nMoore J, Bagley S, Ireland G, McLeod D, Boulton ME. Three dimensional analysis of microaneurysms in the human diabetic retina. J Anat 1999; 194:89–110.\nLieth E, Gardner TW, Barber AJ, Antonetti DA. Retinal neurodegeneration: early pathology in diabetes. Clin Exp Ophthalmol 2000; 28:3–8.\nBarber AJ. A new view of diabetic retinopathy: a neurodegenerative disease of the eye. Prog Neuropsychopharmacol Biol Psychiatry 2003; 27:283–290.\nTam J, Dhamdhere KP, Tiruveedhula P, Manzanera S, Barez S, Bearse MA Jr et al.\nDisruption of the retinal parafoveal capillary newtork in type 2 diabetes before the onset of diabetic retinopathy. Invest Ophth Vis Sci 2011; 52:9257–9266.\nTam J, Dhamdhere KP, Tiruveedhula P, Lujan BJ, Johnson RN, Bearse MA Jr et al.\nSubclinical capillary changes in non-proliferative diabetic retinopathy. Optom Vis Sci 2012; 89:E692–E703.\nLombardo M, Parravano M, Serrao S, Ducoli P, Stirpe M, Lombardo G. Analysis of retinal capillaries in patients with type 1 diabetes and non proliferative diabetic retinopathy using adaptive optics imaging. Retina 2013; 33:1630–1639.\nHan DP, Croskrey JA, Dubis AM, Schroeder B, Rha J, Carroll J. Adaptive optics and spectral domain optical coherence tomography of human photoreceptor structure after short-duration [corrected] pascal macular grid and panretinal laser photocoagulation. Arch Ophthalmol 2012; 130:518–521.\nBurns SA, Elsner AE, Chui TY, VanNasdale DA Jr, Clark CA, Gast TJ et al.\nIn vivo adaptive optics microvascular imaging in diabetic patients without clinically severe diabetic retinopathy. Biomed Opt Express 2014; 5:961–974.\nBressler NM. Age-related macular degeneration is the leading cause of blindness. JAMA 2004; 291:1900–1901.\nFreeman SR, Kozak I, Cheng L, Bartsch DU, Mojana F, Nigam N et al.\nOptical coherence tomography raster scanning and manual segmentation in determining drusen volume in age-related macular degeneration. Retina 2010; 30:431–435.\nGreenberg JP, Duncker T, Woods RL, Smith RT, Sparrow JR, Delori FC. Quantitative fundus autofluorescence in healthy eyes. Invest Ophthalmol Vis Sci 2013; 54:5684–5693.\nQuerques G, Massamba N, Guigui B, Lea Q, Lamory B, Soubrane G et al.\nIn vivo evaluation of photoreceptor mosaic in early onset large colloid drusen using adaptive optics. Acta Ophthalmol (Copenh) 2012; 90:e327–e328.\nGodara P, Siebe C, Rha J, Michaelides M, Carroll J. Assessing the photoreceptor mosaic over drusen using adaptive optics and SD-OCT. Ophthalmic Surg Lasers Imaging 2010; 41:S104–S108.\nBoretsky A, Khan F, Burnett G, Hammer DX, Ferguson RD, van Kuijk F et al.\nIn vivo imaging of photoreceptor disruption associated with age-related macular degeneration: a pilot study. Lasers Surg Med 2012; 44:603–610.\nNakashima K, Ullern M, Benchaboune M, Sahel JA, Paques M. Adaptive optics imaging of geographic atrophy. Invest Ophth Vis Sci 2012; 53:2052.\nSoudry SZ, Duncan JL, Syed R, Menghini M, Roorda AJ. Cone structure imaged with adaptive optics scanning laser ophthalmoscopy in eyes with nonneovascular age-related macular degeneration. Invest Ophthalmol Vis Sci 2013; 54:7498–7509.\nZhang Y, Poonja S, Roorda A. MEMS-based adaptive optics scanning laser ophthalmoscopy. Opt Lett 2006; 31:1268–1270.\nMujat M, Ferguson RD, Patel AH, Iftimia N, Lue N, Hammer DX. High resolution multimodal clinical ophthalmic imaging system. Opt Express 2010; 18:11607–11621.\nBigelow CE, Iftimia NV, Ferguson RD, Ustun TE, Bloom B, Hammer DX. Compact multimodal adaptive-optics spectral-domain optical coherence tomography instrument for retinal imaging. J Opt Soc Am A Opt Image Sci Vis 2007; 24:1327–1336.\nBurns SA, Tumbar R, Elsner AE, Ferguson D, Hammer DX. Large-field-of-view, modular, stabilized, adaptive-optics-based scanning laser ophthalmoscope. J Opt Soc Am A Opt Image Sci Vis 2007; 24:1313–1326.\nMujat M, Ferguson RD, Iftimia N, Hammer DX. Compact adaptive optics line scanning ophthalmoscope. Opt Express 2009; 17:10242–10258.\n[Figure 1], [Figure 2], [Figure 3], [Figure 4]","domain":"optical_engineering"}
{"url":"https://www.whipgear.com/how-does-lidar-remote-sensing-work/?v=f24485ae434a","date":"2024-02-22T02:15:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473598.4/warc/CC-MAIN-20240221234056-20240222024056-00304.warc.gz","language_score":0.8260260820388794,"token_count":149,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__109834764","lang":"en","text":"This NEON Science video overviews what lidar or light detection and ranging is, how it works and what types of information it can provide. The video was produced by the National Ecological Observatory Network – a non-profit project devoted to open science and open data. Suggested citation for this video: National Ecological Observatory Network. November 6, 2014. How Does LiDAR Remote Sensing Work? Light Detection and Ranging [Video file]. Courtesy: Battelle.\nRetrieved from https://youtu.be/EYbhNSUnIdU.\nThe systems that currently drive robot cars cost upward of US$100,000 per vehicle – not counting the cost of the car itself.\nLower Cost LiDar Makers.","domain":"optical_engineering"}
{"url":"https://startingabusinesstoday.com/explore-the-features-of-the-over-specs-full-vision-safety-glasses-and-goggles/","date":"2023-12-05T04:59:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100545.7/warc/CC-MAIN-20231205041842-20231205071842-00176.warc.gz","language_score":0.9575024247169495,"token_count":244,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__233722734","lang":"en","text":"Safety glasses have always been considered as an important equipment in any working industry or factory. Safety glasses not only protects our eyes from damage, but from the chemicals and dust particles too.\nModern range of safety glasses\nModern range of eye protection glasses helps in bringing a proper functionality, quality, design, and safety of the glass and eyes. This helps in maintaining a pace with the rapid increase of industrial advancements and constructions that is going on. And, this is the major expectation of the customers that their eyes are kept safe from any chemical or physical damage.\nMarket of glasses\nYou will get a wide range of models of safety glasses and safety eye goggles too in Singapore. There is a wide range of protective eyewear that will provide the ultimate safety for your eyes. The products of eyewear include anti scratch safety glasses, safety spectacles, anti-fog goggles, safety sunglasses, safety goggles, welding protection eyewear, and many more.\nBefore you buy the glasses, just make sure to differentiate between these glasses as they are highly classified on the basis of their use in different places such as welding protection eyewear in welding industries, and anti-scratch safety glasses in factories.","domain":"optical_engineering"}
{"url":"https://setee.globalpublisher.org/article_180393.html","date":"2024-02-29T02:05:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474775.80/warc/CC-MAIN-20240229003536-20240229033536-00700.warc.gz","language_score":0.9224080443382263,"token_count":158,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__16476403","lang":"en","text":"The possibility of using electric hydrogels as materials in lenses with variable focal length (“smart lenses”) has been investigated. The focus is on identifying and controlling parameters such as the density of the surface connection and the degree of neutralization that affects the properties of the required gel. These characteristics include optical transparency, structural strength and electrical reactivity. The transmission of an electrical signal to the gel is investigated by determining the ideal shape, location, and material for the electrodes used in Smart Lens applications. Types of materials are tested with mixed results, and suitable electrode materials are recommended. The structural and optical properties of the gels are evaluated through swelling and optical transmissivity measurements. However, there are some apparent anomalies that are attributed to limitations in existing knowledge about gel swelling processes.","domain":"optical_engineering"}
{"url":"http://pvw.nerdsoul.it/","date":"2021-04-17T06:18:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038101485.44/warc/CC-MAIN-20210417041730-20210417071730-00032.warc.gz","language_score":0.8879979848861694,"token_count":1757,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__201048582","lang":"en","text":"Jan 05, 2021 · Lens Coating. Lens coating is an important feature of a spotting scope, especially for viewing images at high magnifications. The lens can be fully coated, multi-coated, or fully multi-coated. Each lens coating improves the light transmitting into the lens, but the quality depends on the coating chosen for the specific scope.\nNews18 india male anchor name list\nDec 21, 2020 · For such an affordable m4/3 lens, the Panasonic 25mm f/1.7 is offers a lot in the way of high quality build, despite being so lightweight. The metal mount provides durability for active use, and uses multi-coated lens elements that minimize ghosts and flare to further enhance its shooting performance.\nA119S Dashcam F1.6 v1 Lens vs F1.8 v2 Lens Comparison Original 7G F1.6 v1 Lens = 98 degree HView, uncoated lens, metal base, blurry on left issue/soft focus New F1.8 v2 Lens = 101 degree HView, coated lens, plastic base, great focus. (discovered new F1.8 Lens has.\nDog saves cat from fight\nSti side emblem\nJun 01, 2017 · The 135mm f3.5 Takumar is a medium telephoto lens made by the Asahi Optical Company. One of the best telephoto vintage lenses, the 135mm Takumar has several versions, such as the Super, Super-Multi-Coated, and SMC. They all have the M42 mount and are basically the same in terms of optics and design.\nApr 26, 2017 · Lens coating is meant to improve color rendition, sharpness, contrast, and transmission. 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I am frankly surprised that you could get any image at all through fifty filters, some of which are likely to be uncoated or single-coated.\nCommonwealth attorney madison county ky\nBen delo hong kong\nWe deliver trendiest & fashionable colored contact lenses to alter the appearance of your natural eye color with broad color spectrum. Check out our latest items and Shop nowhere at the O-Lens online store for our latest cosmetic contact lenses. Enjoy it with our worldwide shipping service.H igh Quality: Blue AR Coating increasing optical clarity and colour fidelity. Multiple coated filter allows 99% transmittance compared to 90% transmittance of normal UV filters on the market. F ul ly Pro tection: Multi-coated glass blocks and prevents the harmful effect of UV rays and eliminates haze that can register a bluish cast from scenic ... How to finish a 4 strand braidReferences zuiko lenses — single vs. multi coating? การเคลือบผิวเลนส์ เกร็ดความรู้….เลนส์ Olympus OM Zuiko.Fully Multi Coated Optics For a pair of binoculars that's great for both astronomy and long-distance terrestrial observation, you'll want the saxon 20x80 Night Sky Waterproof Binoculars. Images will come up bright, clear and crisp with these binoculars' large, oversized 80mm objective lens with anti-reflection coatings, BaK-4 prism and fully ... A119S Dashcam F1.6 v1 Lens vs F1.8 v2 Lens Comparison Original 7G F1.6 v1 Lens = 98 degree HView, uncoated lens, metal base, blurry on left issue/soft focus New F1.8 v2 Lens = 101 degree HView, coated lens, plastic base, great focus. (discovered new F1.8 Lens has.Jan 01, 2008 · A thin anti-reflective coating (usually of magnesium fluorite) on one or more of the lens surfaces. Fully coated. At least one thin anti-reflective coating on both sides of the objective lens system, both sides of the ocular lens system, and the long side of the prism. Multi-coated. Multiple layers of coatings on one or more of the lens surfaces. High school musical karaoke with troyMost photographers leave a UV filter attached to the lens all the time as a form of protection. But the filter also plays an important role in filtering through UV Haze. Waterproof top coat for easy cleaning, 1 year HOYA USA Warranty, Schott B270 clear glass, 10-layers of HMC multi-coatings, Low-profile....\nMulticoating is a development from the older single coating system. The single coats were usually blue or occasionally yellow or red. The idea behind coating a lens is to reduce reflections from the surface and (Surprisingly) increase transmission of light into the glass. The single coatings were not all that efficient al all wavelengths.\nSony xbr75x940d calibration settings\nAn integrated system of coating layers densely packed using ion-assisted deposition results in a lens surface that is three times harder than the previous generation of hard anti-reflective (AR) coated plastic ZEISS lenses and 35 % harder than AR coated glass ZEISS lenses*.\nFeatures Compact foldable roof prism binocular that fits in your pocket! Fully-coated optics for increased clarity Sleek and fashionable rubber armor built with a unique bridge design Compact, lightweight and ideal for travel, concerts and sporting events Includes carrying case and neckstrap What's in The Box 10x25 Tre\nDatatable hide all rows\nStrobe prop money\nBy coating the surface of the lens, the amount of reflection can be minimized, decreasing flare and ghosting. Different Types of Coatings: coated optics: one or more surfaces coated. fully coated: all air-to-glass surfaces coated. multi-coated: one or more surfaces are multi-layer coated. Single Vision Hard Multi Coated (HMC) Lens The second most common lens type, normally used for the graded vision offered to people without a 20/20 eyesight. This is also one the cheapest type of lens that offers normal radiation protection and eyesight correction from near to distant.\nCamp chautauqua map\nAug 24, 2020 · The improved aluminum material increases durability while the multi-element coated glass minimizes lens flare and reflections. The soft rubber clip is easy to adjust and you won’t have to worry about unnecessary scratches on your device.\nRemedies for ast shukra\nOn “Re-Lens” orders using a rimless frame, the custom drilling and mounting fees cannot be refunded. * Excluded Lenses: Multifocal Lenses: Bifocal and progressive lens orders may be exchanged or remade one time at no cost within the first 90 days after delivery. Any changes to an order prior to shipping will count as the allowed free ...\nHeather elvis 2019\nPathfinder kingmaker best composite longbow\nIt is an upper mid-range quality lens with a price under $100 for most any budget. Its multi-coated 3-element Apochromatic lenses make it perform as well as the more expensive Barlows for the average astronomer on most telescopes. The reasons this guy won; it is 1.25″ and will fit in 99% of all telescopes. Reverse Aspherical Backside Lenses (RABS). When first developing prescription lenses for VR headsets, we The blue light radiation emitted by digital device screens also interferes with your melatonin production Aside from these VR specific features all our lenses are multi-coated, this...","domain":"optical_engineering"}
{"url":"https://www.drhoeyeandplasticsurgery.com/cataract-surgery/","date":"2021-10-27T20:24:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588242.22/warc/CC-MAIN-20211027181907-20211027211907-00359.warc.gz","language_score":0.9394459128379822,"token_count":349,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__181642593","lang":"en","text":"Cataract is the cloudiness in the lens which stop people from seeing clearly. The symptoms range from reduced vision/blurred vision, double vision, glare or seeing haloes at night and colour become less bright.\nCataract is usually due to aging process but it can occur at a younger age if someone is born with it (congenital), suffer an eye injury, diabetes and those take steroids.\nWhile there may be someone offering magic eye drops ( yet to be proven its efficacy), cataract surgery is still the ultimate treatment at present. Phacoemulsification is the preferred and common way to remove cataract.\nIt uses ultrasonic handpieces through a small wound (2.75mm) on the eye and the cataract is aspirated from the eye. It is performed under local anaesthesia, very often anaesthetic drop onto the eye. Patient is awake but usually will not feel any pain. After about less than half an hour, the operation finish and the patient can go home the same day.\nDuring the surgery, an intraocular lens (IOL) will be implanted into the eye. Depending on one’s need, Dr Ho. Shu Fen will discuss the type of lens to be inserted. It can be a monofocal lens with proven track record, well tolerated by most and allow one to see far clearly but require one to wear reading classes to read; toric lens implant to correct high astigmatism, multifocal IOL/lens implant to allow one to see far and near but with higher price. Dr Ho will discuss all the pros and cons of this lens choice with patient so that patients will have clear expectations of what can be achieved.","domain":"optical_engineering"}
{"url":"https://www.126sbo.com/pros-of-led-lighting/","date":"2021-01-21T11:38:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703524743.61/warc/CC-MAIN-20210121101406-20210121131406-00328.warc.gz","language_score":0.9485943913459778,"token_count":477,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__227351484","lang":"en","text":"Pros of LED Lighting\nLED Lighting is one of the most energy reliable lighting technology readily available today. It uses much less electricity to operate than incandescent bulbs, and even newer LED lighting is just as reliable.\nAnother benefit of LED lighting is that they can provide the same color and brightness as incandescent bulbs. Therefore, it is similar to using a regular bulb for home lighting as it provides a similar quality, even if it doesn’t provide the same ‘warm’ color. This eliminates the want for introducing added lighting in areas where light sources other than those from LED lighting are used.\nSo, what is so distinctive about LED technology? The leading distinction between LED bulbs and conventional bulbs is the fact that LEDs don’t make use of any filament, however instead make use of a diode. Incandescent bulbs make use of a filament; this filament is then heated up and burned.\nA reason that LED technology makes it possible to utilize only a tiny amount of power is because of how the LED bulbs are made. Unlike conventional bulbs, the LED light is powered by the electrons produced within its semiconductor. With conventional bulbs, the electrons will flow into the filament and then begin the procedure of generating heat.\nAnother benefit of LED lighting is that it can be modified to almost any color or temperature, so they are ideal for many various purposes. For example, LED lamps can be used to illuminate track lighting, as well as use in wall sconces.\nOne of the main benefits of LED lighting is the ability to control it with a simple twist of a switch. For example, you can simply improve the lighting in your home by replacing the lights in a room. There is no need to hire an electrician, because you can simply replace the lights conveniently yourself.\nThe other benefit of LED lighting is that it is extremely simple to install, so it is a cost successful way to improve your home. No matter how small the light source, LED bulbs can supply even more light without the expense of hiring an electrician or electrical contractor.\nFinally, LED lighting has quite little impact on the environment. Since it is environmentally friendly, it helps to make our world a cleaner put. Even if you don’t like the thought of greener products, LED lighting does not make your home a green living space.","domain":"optical_engineering"}
{"url":"http://www.yjjj365.cn/sangna/227.html","date":"2020-08-11T23:14:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738855.80/warc/CC-MAIN-20200811205740-20200811235740-00408.warc.gz","language_score":0.9101216793060303,"token_count":866,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__57666088","lang":"en","text":"Bai Chu Electronics (688188): Leader in fiber laser control system transformation and upgrading\nThe pioneer of fiber laser cutting control system.\nThe company is the first private enterprise in the development of a complete set of military fiber laser cutting control system in China. With independent software development as the core, the company integrates with hardware such as board cards, bus masters, and capacitor height controllers for sale.\nThe company’s main business focuses on laser PC-based motion controllers, including servo systems, board systems, bus systems and other related supporting products.\nFrom 2016 to 2018, the company’s revenue / attribution net profit CAGR was 41.\n7% / 36.\n1%, gross margin is over 80%.\nRelying on a high-quality technical team, the company entered a strategic switching period and set sail for high-power new technologies.\nFiber laser cutting tens of billions of markets, domestically produced forces have risen.\nFiber lasers are the third generation of new-type lasers, with a global compound laser growth rate of 24 between 2013 and 2017.\n78%, estimated at $ 2.5 billion in 2020.\nThe scale of fiber laser industry expansion has been above 60% since 2013, reaching 79 in 2017.\nAt present, domestic production of low-power 南宁桑拿 fiber lasers has basically been achieved, and the number of domestically produced low-power fiber lasers has soared.\nHigh power localization rate 13.\n6%, the first decline in imports in 2018.\nPC-based motion controllers are the key upstream components of fiber lasers. The domestic compound growth rate in recent years is about 13%, and it is expected to exceed 32 in 2020.\nCustomers & R & D & products build three moats.\n1) Product: The company holds about 60% of the domestic low-power laser processing control system market, and the board / follow-up production-sales ratio has remained at a high level.\n2) R & D: In 2018, R & D investment accounted for 11%, and R & D personnel accounted for more than half. The core team came from Shanghai Jiaotong University.\nThe company has 17 patented 杭州桑拿 technologies, 34 software copyrights, 14 software product registration certificates, 32 reserve patents, five independent research and development technologies such as CAD, CAM, and NC, which have reached the international advanced level and can provide a complete set of laser cutting solutions.\n3) Customers: We have cooperated with 500 large laser cutting equipment manufacturers, and active customers account for about 60% of the total number of customers in the industry.\nThe IPO raised a total of 8.\n3.5 billion to cultivate new tracks.\nOf which 3.\n14 ppm for “Bus Laser Cutting System Intelligent Upgrade Project”, 2.\n30,000 yuan for “Superfast Laser Precision Micro / Nano Processing System Construction Project”, 1.\n97 ppm is used for “the equipment health cloud and MES system data platform construction project”, 0.\nConstruction of 83 million USD R & D center\n$ 3.9 billion to expand marketing network.\nThe construction period of the bus & ultra-fast laser project is 3 years, and after the completion of production, it will contribute an annual revenue of 9 in total.\n500 million (before tax).\nInquiry interval and investment recommendations: We expect the company’s net profit growth rate to be 11 in 2019-2021.\n9%, corresponding to an EPS of 1.\n72, 2.00 yuan.\nRelative estimation method and comprehensive consideration are given to the company’s PE inquiry range of 27-29 times in 2019, and the inquiry range is 42.\n24 yuan / share; the reasonable estimate range after listing is 29-32 times, and the reasonable and reasonable price is 45.\nRisk reminders: risk of technology and product development, risk of loss of core technical staff and leakage of core technology, risk of intensified competition in the low and medium power laser cutting market, and risk of market development of the high power laser cutting.","domain":"optical_engineering"}
{"url":"https://www.optic-gaggione.com/highlights/moon-color-mixing-zoomable-solution/","date":"2023-09-23T10:57:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506480.7/warc/CC-MAIN-20230923094750-20230923124750-00289.warc.gz","language_score":0.8979167342185974,"token_count":627,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__216908763","lang":"en","text":"MOON is an innovative solution for very small form factor luminaires requiring both a zoom and a colour mixing function. MOON is a silicone light guide and projection lens based on our experience in stage lighting and entertainment.\nIt was developed in collaboration with one of our most important customers in the stage lighting market. Since the colors or white colour temperature are mixed using multiple internal reflections inside a silicone rod, the homogeneity of the colour is perfect, even on the most difficult colors. This is the best possible solution for high-end luminaires with a diameter of less than 20 mm.\nPlease note that as a partner product, it will not be available for all applications. Do not hesitate to contact your sales representative for more information.\nMOON being a very innovative and atypical optical solution, you will need some guidelines to prototype and integrate it. We have published a MOON Application Note to help you in this process. This application note covers the main questions you will be facing while designing you upcoming fixture. It covers mechanical integration, qualification of beam angles and LED selection option.\nA LED injects light on the base of the light guide. Multiple reflections among the light guide length ensure a perfect light homogeneity on the output surface. The image of the output surface is projected by the lens to create the beam.\nMOON L : Imaging lens\nAs a light guide technology based system, MOON consists of two references :\nMOON G : Assembled part containing silicone light guide and two-parts holder\nMOON is recommended to be integrated with high power flat top LED. As the light guide technology is capable of color/chip emission mixing, single or multi chip, white or RGBW references can be used.\nThe input part of the light guide has been designed to fit with up to total 4 mm² LES. Using bigger LES might impact efficacy as a significant part of the light will not be collected by the light guide. To ensure the best possible light collection in the light guide, a distance of 0.1 mm is recommended between the LED and the light guide input. The MOON G holder has been designed to fit LED presenting a 1.3 mm thickness thus presenting a 1.4 mm difference between the PCB surface and the light guide input. When using a LED with a lower thickness, it is recommended to create routed areas on the PCB surface to compensate the difference.\nMOON beam angle will vary while adjusting distance between MOON G light guide output and MOON\nL lens input. This range has to be kept between 1.95 mm (wide beam) and 8.45 mm (narrow beam).\n1.95mm corresponds to MOON G and MOON L in mechanical contact.\n8.45mm corresponds to a 6.5 mm distance between the top of MOON G and bottom of MOON L.\nBeam angle (°) vs Distance (mm)\nProjection Lens is the MOON L DD-FF-T-M .\nAvailable reference is MOON L 22-16-C-7","domain":"optical_engineering"}
{"url":"https://eyesiteeyecare.co.uk/sun-lenses/","date":"2024-04-19T06:37:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817289.27/warc/CC-MAIN-20240419043820-20240419073820-00543.warc.gz","language_score":0.8974794149398804,"token_count":208,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__45372722","lang":"en","text":"Don’t dim your world when the sun shines\nStandard tinted lenses can protect your eyes from harmful rays but can distort how your eyes perceive colour.\nThey are ideal for people with light sensitivity, or for when driving in bright sunshine, as your perception of the colours of road signs and traffic lights is unaffected\nAvailable in a range of colours and graduations, Essilor Tints are specially treated to give 100% protection against damaging UV rays, without altering colour perception.\nBetter vision for all outdoor activities in the sun\nA real step forward in quality of outdoor vision for all spectacle wearers. In addition to providing protection against the effects of UV light, Polarising lenses give effective protection against the glare caused by reflected sunlight and numerous benefits for greater comfort and safety for activities outdoors.\n- Glare reduction\n- Enhanced colour perception\n- Improved contrast\n- Greater visual comfort\n- 100% UVA/UVB protection","domain":"optical_engineering"}
{"url":"http://biolisys.cut.ac.cy/facilities/in-vivo-imaging-facility/","date":"2022-08-08T17:23:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570868.47/warc/CC-MAIN-20220808152744-20220808182744-00766.warc.gz","language_score":0.9064849615097046,"token_count":437,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__199808663","lang":"en","text":"In vivo Imaging Facility\n- Multi-channel in vivo flow cytometry\nOur group developed a multi-channel in vivo flow cytometer, based on confocal design. Contrary to the conventional flow cytometer, the in vivo flow cytometer can provide real-time detection and quantitative information on fluorescently labeled cells while in circulation in a live animal model. As the labeled cells pass through a slit of light focused across a blood vessel, fluorescence is excited. Its confocal detection makes it possible to observe the cell population of interest without the need to extract a blood sample. Furthermore, the same cell population can be tracked continuously and over long periods of time to examine the dynamic changes in the circulation of different types of cells in the same animal. The in vivo flow cytometer has been used to measure the circulation lifetime of different tumor cells and leukocyte populations in the peripheral circulation in response to immunological stress or therapeutic manipulation.\n- Whole body imaging system (reflectance mode configuration)\nReflectance imaging is a noninvasive, quantitative method that enables longitudinal studies of physiological changes in individual animals over time. Bioluminescence imaging measures visible light that is emitted by luciferase-driven reactions on the luciferin substrate in the presence of oxygen. Fluorescence imaging quantifies the signal that is emitted by cells and tissues in the animal that have been fluorescently labeled either by transfection (direct insertion of a fluorescent protein promoter into the genome), by direct injection of fluorescence probes or by adoptive transfer of ex vivo isolated fluorescent cell populations. Whole body imaging has been used extensively in cancer imaging, to image the development of implanted tumors in mice, and to monitor metastasis and response to therapeutic intervention. In conjunction with the in vivo flow cytometer, the whole body system has also been employed to investigate the biodistribution and homing kinetics of therapeutic delivery vehicles (microparticles) in animal models. These optical techniques afford the opportunity to quantitatively monitor microparticles in circulation, to detect and image their biodistribution and incorporation in cells and organs of healthy and tumor bearing mice, as well as to acquire anatomical information on cancer size and location.","domain":"optical_engineering"}
{"url":"https://homeremedylifestyle.com/healthterm/eyeglasses/","date":"2023-09-24T22:40:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506669.96/warc/CC-MAIN-20230924223409-20230925013409-00533.warc.gz","language_score":0.9475188255310059,"token_count":2097,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__92379621","lang":"en","text":"Buying Eyeglasses For Your Eyesight\nRegardless of whether you need glasses for your eyesight, you’ll be happy to know that there are many eyeglasses styles available to choose from. There are also a number of different eyeglasses options for people with specific eye conditions, such as myopia or cataracts. In addition, there are eyeglasses with scratch-resistant coatings and progressive lenses.\nChoosing the right glasses frame for your face shape is important. It will help balance your face and highlight your unique features. It is also important to ensure that the frame fits well. This will ensure a comfortable and durable fit.\nThe types of glasses frames available include:\nThe materials used for making glasses frames vary from metal to acetate. These are durable and can be available in many colors and finishes. They offer style features and are available in different rim types. They are also lightweight.\nGlasses frames are fastened to the temples using hinges. Hinge types vary from mechanical hinges to tenon hinges. Mechanical hinges are not as stable as tenon hinges and are less commonly used in high-end technical glasses frames.\nThe main types of hinges used in glasses frames are tenon hinges, hidden hinges, and spring hinges. Each hinge has threaded loops that protrude from the base of the hinge. The loops are interlocked with screws.\nTenon hinges are typically used for solid full-rim glasses. They are secured with two or three metal rivets. These rivets are placed in a tightly packed cluster on the frame’s front endpiece.\nSpring hinges are a modern adaptation of the traditional tenon hinge. These hinges provide a flexible and adaptable mechanism. They are commonly used in low-cost glasses frames. They conceal the spring in the temple half-joint. They are less stable than tenon hinges and may require manual adjustments. They are also more common among reader readers.\nThe type of material used for making glasses frames can also be important. Acetate is a plastic that is commonly considered to be more environmentally friendly than petroleum-based plastics. It is also available in a variety of colors and patterns. Acetate is also more durable than plastic and can simulate the look of other materials better.\nAdding a scratch-resistant coating to your glasses can increase their lifespan and give them a hard, scratch-free surface. However, it’s not a complete guarantee.\nScratch-resistant coatings on glasses are designed to make the lens harder and more resistant to scratches. They are usually applied to both sides of the lens. These coatings are sometimes optional, but they are available with many glasses.\nThere are many different types of coatings on glasses. These coatings can be expensive, but they do provide a number of benefits. Many coatings are designed to last a long time. For example, a lens with a hydrophobic coating will help prevent your glasses from fogging up in cold conditions. They also repel water and oil.\nAn anti-glare coating will reduce glare and improve the quality of your vision. This is an important feature to look for when buying glasses. A UV light filter is also an added benefit.\nThe best way to clean your glasses is by using a microfiber cloth and a lens-cleaning solution recommended by an optician. Never use paper towels to wipe your glasses, or you could end up with a scratch.\nAn anti-reflective coating is also a good idea. It will reduce glare and give your eyes a rest. However, these coatings are pricier than scratch-resistant coatings, but the benefits are worth it.\nAn anti-fog coating can prevent your glasses from fogging up when you walk into a warm room or when you perspire. Lastly, an anti-static coating will repel water and oil.\nThe most important thing to remember is to store your glasses in a case or cushioned bag when they are not in use. Scratches can occur when you drop your glasses, so you want to keep them protected.\nUnlike the traditional bifocal, progressive lenses are truly multifocal that allow you to see clearly at different distances. They also offer a more youthful look.\nProgressives are also more comfortable to wear than bifocals. They have a smooth transition from distance to near.\nThe upper portion of a progressive lens provides clear vision at long distances, while the lower portion provides the strength to see close up. This is the newest lens technology.\nProgressives are a good choice for people over 40 years of age who are experiencing presbyopia. They also help prevent the development of farsightedness. They can also be worn by children to prevent myopia.\nIf you are having trouble adapting to progressive lenses, talk to your optometrist. They can help you pick the best frame and help you select the right lens type for your needs.\nThere are many different types of progressive lenses, including soft, hard, and computer-specific. The most important thing to keep in mind when choosing the correct progressive lens is your lifestyle and preferences. For example, people who work on computers may want a different pair of glasses for up-close activities.\nThe American Optometric Association reported that 44.8 percent of glasses ordered online were not prescribed by an eye doctor. A knowledgeable optician can help you find the right lens for your needs and protect your investment.\nWhile a progressive lens is a big step forward in eyewear technology, it is not for everyone. Some people may never adjust. Others may require a month or more of adaptation. Luckily, quality optical shops can help you find the right frame and lens. The more you know about eyeglasses, the more comfortable you will be wearing them.\nApproximately half of all young adults in the United States and Europe are nearsighted. Myopia is caused by a refractive error, which is a bend in the light rays that focuses them in front of the retina.\nMyopia is usually corrected by wearing glasses or contacts. In some cases, surgery can correct the problem. In more serious cases, blindness may occur. A person with high myopia may also develop cataracts. In these cases, surgery can be performed to reshape the eye’s cornea.\nChildren’s vision continues to change as they grow. They may need to have their eyes tested more often as they reach different stages of development. Children can also be referred to a pediatric ophthalmologist if they have vision issues. Children’s eye exams may include pictures, eye chart tests, and a physical examination.\nMost schools conduct eye screenings. However, these tests are often not complete enough to diagnose myopia. Usually, the eye care provider will use a phoropter to test vision. If the doctor finds myopia, he or she will recommend a way to control it.\nNearsightedness can be prevented by wearing glasses only during long-distance viewing and taking breaks during the day. Taking breaks during the day is important because wearing glasses can interfere with the eye’s ability to adjust when looking at close objects.\nEye drops may also be used to prevent nearsightedness. However, it is important to see an eye care provider as soon as you suspect you have nearsightedness. The American Academy of Ophthalmology recommends annual eye exams for people with myopia.\nThe Mayo Clinic offers extensive background on myopia as well as actionable guidance. It also provides current clinical trials and research on myopia.\nPrescription for children\nBuying prescription glasses for children is not as simple as you might think. You have to be careful to look for the best features and find a retailer that can meet your child’s specific needs.\nThere are many different online retailers that sell glasses for kids. Many of these stores offer similar quality glasses as you would find at a doctor’s office.\nThe best sites to look for glasses for kids are those that accept vision insurance plans. Make sure to read their policies before committing to a purchase. Also, check to see if they offer any manufacturer rebates.\nFor example, many online retailers have virtual try-on options. This feature makes it easy to see how the glasses look on your child. You can also check customer reviews to see how others like the glasses you’re considering.\nAnother great feature of many online retailers is that they offer customizable frames. This means you can pick the frames that look the best for your child. You can also find frames that are trendier and more stylish than those you might find in a store.\nAnother feature you might want to look for is a site that offers free replacement glasses for kids. Most retailers that sell prescription glasses for kids don’t offer this feature.\nThere are also sites that offer blue light-blocking glasses for kids. These glasses are designed to block the blue light from reaching your child’s eyes, which can help them sleep better. These glasses are available in both prescription and non-prescription versions.\nIf you’re looking for prescription glasses for kids, then you’ll probably need to make an appointment at your local eye doctor. Some pediatric hospitals offer optical services, but you’ll want to check with your child’s doctor to make sure it’s a good fit.\nHealth A to Z. (n.d.). HSE.ie. https://www2.hse.ie/az/\nU.S. National Library of Medicine. (n.d.). https://www.ncbi.nlm.nih.gov/\nDirectory Health Topics. (n.d.). https://www.healthline.com/directory/topics\nHealth A-Z. (2022, April 26). Verywell Health. https://www.verywellhealth.com/health-a-z-4014770\nHealth Conditions A-Z Sitemap. (n.d.). EverydayHealth.com. https://www.everydayhealth.com/conditions/","domain":"optical_engineering"}
{"url":"http://oceanscan.net/p-LABINO_BIGBEAM_HELIOS_UV_LED_DUO_MIDLIGHT","date":"2018-07-19T15:28:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591140.45/warc/CC-MAIN-20180719144851-20180719164851-00063.warc.gz","language_score":0.8808942437171936,"token_count":405,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__155241340","lang":"en","text":"The Labino® BigBeam Helios UV Led Duo Power is a portable lamp based on UV LED technology. The lamp is battery operated, but it is possible to run the unit via mains while charging the battery. The light emitting diodes emit a beam of light that is “evenly” distributed. The lamp is available in two different beams – Midlight and Floodlight. The Labino® BigBeam Helios UV Led is 100% free from UV-B. The diodes emit almost no visible light1. Its compact size makes it easy to work with and with an instant-start function you get full power immediately. At a distance of 380 mm the Labino BigBeam Helios UV Floodlight has an initial intensity of approximately 5 500 µW/cm2. The Midlight version has an initial intensity of approximately 8 500 µW/cm2 (the intensity goes down with approximately 500 µW after it has been warmed up).\nMidlight ≈ 8 500-8 000 μW/cm2 at 38 cm (15 inches)\nØ 275 mm (total area with a mini-mum intensity of 1200 μW/cm2 at 38 cm)\nTake advantage of over 50 years combined experience from our sales team.\nInternational equipment supplier Oceanscan has added underwater acoustic positioning technology from Sonardyne International Ltd. to its rental fleet.\nOceanscan sister company Sercal are proud and excited to be sponsors of the University of Wolverhampton's new 2018 Formula 3 racing car!\nDenmore Road, Aberdeen\nOceanscan Ltd (Southern Office)\nOrbis Energy Centre, Wilde Street\nLowestoft, NR32 1XH\nTel: +44(0)1502 509247\nOceanscan Ltd. is registered under the Scotland Companies Act 2012 - Registration No. 116255 - VAT registration No. 498 4896 57\nCopyright 2017 Oceanscan Ltd. All Rights Reserved.","domain":"optical_engineering"}
{"url":"https://shop.ionbiosciences.com/collections/calcium-indicators","date":"2019-11-22T20:32:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496671548.98/warc/CC-MAIN-20191122194802-20191122223802-00484.warc.gz","language_score":0.8443499207496643,"token_count":1175,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__146177343","lang":"en","text":"The study of the function of Ca<sup>2+</sup> ions inside cells is one the most dynamic areas of modern cell biology. Ca<sup>2+</sup> is known to control neurosynaptic transmission, secretion of hormones, muscle contraction, and a myriad of physiological functions. It is suspected to be involved in cell division, movements of non-muscle cells, as well as memory and learned patterns of the nervous system. In all cases, localized fluctuations in cytosolic free Ca<sup>2+</sup> levels inside cells are believed to control these functions. Techniques for the measurement and manipulation of Ca<sup>2+</sup> are therefore crucial and have been advancing rapidly largely as a result of invention of fluorescent ion indicators.\nWe list our fluorescent calcium indicators by grouping them according to the color of the light they emit on binding calcium, namely Red, Green, and Near UV. We also sell non-fluorescent BAPTA derivatives.\nStandard instrumentation is readily available in most laboratories and core imaging facilities for compatibility with the multitude of green fluorescent probes in the market. Photochemical constraints and low quantum yields have contributed to the relatively small amounts of red-emitting probes compared to the green-emitting probes.\nRed-Emitting Fluorescent Calcium Indicators\nOur new red calcium indicator, Ion Red Calcium 660 (IRC-660) is under development. Upon completion, this product will have properties that exceed the normal criteria for fluorescent calcium indicators:\n- Good loading\n- Good quantum yield\n- Great pKa\n- Good extinction coefficient (22,000)\nAdvantages over green emitting fluorescent indicators1\nThe Red-emitting wavelength region is attractive for biological research because it affords:\n- Higher tissue penetration due to reduced scattering and reduced absorption by endogenous fluorophores (usually green)\n- Lower phototoxicity\n- Reduced spectral overlap by spectrally broad autofluorescence\n- Work in an optical window where water and hemoglobin absorption is reduced\n- Monitoring Ca<sup>2+</sup> in cells or tissues expressing yellow or green fluorescent protein or labelled with other green-emitting fluorophores\nThese advantages will make the dye usable in almost all cells and hence widen the scope of screening tremendously.\nTable 4.1 Ion Indicators Calcium Indicators\n|ION Calcium Red 660 K+ Salt||1056||580 nm||660 nm||40||0.400||H2O||5.7|\n|ION Calcium Red 660 AM||1190||*||*||*||*||DMSO||*|\n*The AM is for non-invasive loading and generates the salt inside the cell by non-specific esterases.\nProtocol- to be written by Dr. Joe Kao (U. Maryland).\nModifications of IRC-660 can be made for other applications upon request in a CUSTOM SYNTHESIS.\nGreen-Emitting Fluorescent Calcium Indicators\nMost useful and inexpensive lasers operate in the green part of the visible spectrum and that has made green-emitting fluorescent calcium indicators very useful for confocal microscopy, flow cytometry, and screening. The popular green-emitting fluorescent calcium indicators for screening are FLUO-2, FLUO-3 and FLUO-4. They are all derived from the original FLUO compound (Figure 1) invented by Minta and Tsien (1989).2\n|FLUO-2||x = H||R = CH3|\n|FLUO-3||x = Cl||R = CH3|\n|FLUO-4||x = F||R = CH3|\nTable of Properties for FLUO-2, FLUO-3, and FLUO-4\n|Indicator||MW||Excitation (nm)||Emission (nm)||Kd||Extinction||Solubility|\n|FLUO-2 K+ Salt||891||490||515||230||80,000||H2O|\n|FLUO-3 K+ Salt||960||506||526||390||80,000||H2O|\n|FLUO-4 K+ Salt||927||490||515||345||80,000||H2O|\nNear UV (Traditional) Calcium Indicators\nWe offer Fura-2 (Figure 1) as a traditional calcium indicator which emits near UV. Fura-2 is very useful because it is ratiometric. It displays a shift in fluorescence upon binding calcium and the ratio of the two wavelengths can be used to effect calibration. The ratiometry figure below (Figure 2) makes it useful even though the excitation ratio is in the UV region where the energy is very high and there is great autofluorescence.\nCa2+ indicators that are excited at visible wavelengths have advantages over UV-excited indicators. Whereas UV light can cause cell damage, visible light is generally biologically benign. Moreover, much less cellular autofluorescence is excited by visible light than by UV light. The ready availability of low-cost lasers that emit visible light makes the visible indicators ideal for confocal microscopy and flow cytometry.\n- Oheim M, Hoff MV, Feltz A, Zamateeva A, Mallet J-M, Collot M (2014), New red-fluorescent calcium indicators for optogenetic, photoactivation, and multi-color imaging. Biochimica et Biophysica Acta.\n- Minta A, Tsien R (1989), JBC 264, 8171.","domain":"optical_engineering"}
{"url":"https://callawaysecurity.com/how-do-night-vision-security-cameras-work/","date":"2024-02-23T02:52:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474360.86/warc/CC-MAIN-20240223021632-20240223051632-00585.warc.gz","language_score":0.8858432769775391,"token_count":1405,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__139545846","lang":"en","text":"Home security is a top priority for many homeowners. We want to protect our families and possessions, especially when we’re away or sleeping. One essential tool is the security camera – but what good is a camera that can’t see in the dark? That’s where night vision comes in. In this post, we’ll take a deep dive into night vision technology and how it allows security cameras to keep watch even after the sun goes down.\nAn Overview of Night Vision\nNight vision refers to the ability to see in low-light conditions. Humans have limited natural night vision compared to many animals. But with technological aids like night vision devices, we can enhance our ability to see in the dark. Night vision is made possible thanks to physics and biology.\nCertain materials are able to emit photons – packets of light energy – when exposed to an electric current. Electrons get boosted to a higher energy level and then release photons when they return to their natural state. The photons that are released are in the infrared spectrum, which is invisible to the human eye. But with the right equipment, these photons can be detected and converted into visible light.\nThe human eye also contains rods and cones. Cones are color receptors activated by visible light. Rods handle peripheral and night vision but need very low light levels to function. Night vision devices amplify the available light to boost the rod cells’ response. This enhances the natural night vision capacity of our eyes.\nHow Night Vision Security Cameras Work\nNight vision security cameras have additional technology to enable 24-hour surveillance. Here are the main components and functions:\n- Infrared Illuminator: This is an IR LED light source that emanates infrared light, illuminating the camera’s field of view. It’s invisible to the naked eye but detectable by the security camera. The wavelength is specially matched to be sensed by the camera’s image sensor.\n- Image Sensor: The camera’s image sensor is specially engineered to be sensitive to infrared wavelengths from the IR illuminator. It can capture crisp images in very low ambient light. The sensor converts the photons into a digital signal to form the video image.\n- Low Light Image Processing: The camera’s processor includes algorithms to enhance low light footage. Techniques like overlaying multiple frames can reduce noise and increase details in dim conditions.\n- Infrared Cut-off Filter: A filter blocks visible light from entering the sensor so only IR wavelengths get through. This improves image quality and contrast for the night vision footage.\n- High Resolution Image: Night vision security cameras are able to capture high definition footage in dark settings. Many models offer at least 1080p resolution for sharp images and detail.\n- Wide Dynamic Range: WDR technology helps balance bright and dark areas in the same scene. This reveals details that would normally be lost in shadows or highlights.\n- IR Illuminator Range: The IR illuminator can disperse infrared light across distances of up to 150 feet or more. The range depends on the power of the infrared LEDs and camera specifications.\nTypes of Night Vision Cameras\nThere are a few main technology categories when it comes to night vision in security cameras:\nThis is the most common type of night vision. The camera uses an IR cut filter and IR LED illuminator to capture video in low ambient light. NIR cameras provide between 20-30 meters of night vision.\nThermal cameras detect temperature differences and do not need IR illumination. They can see in total darkness and through obscurants like smoke, fog, or foliage. Thermal imaging has a long range but lower resolution.\nIntensifier night vision amplifies any available ambient light. Stars, moonlight, or streetlights are intensified to provide usable images in very dark settings. But no IR illuminator is used.\nInfrared and Visible Light\nDual camera systems have separate IR and visible light cameras. Video analytics can merge the feeds for simultaneous night and day vision. But the cameras are more expensive.\nKey Features and Benefits of Night Vision Security Cameras\nThere are many good reasons to invest in night vision for home security:\n- 24-hour surveillance – No lapse in coverage means full monitoring day and night. The camera isn’t blind after dark.\n- Increased safety – Better visibility at night helps deter crime and gives insight into any activity on your property.\n- Peace of mind – You’ll rest easy knowing your home is protected at all hours. Night vision provides that added security.\n- High-quality images – Night vision footage is clear, sharp, and detailed even in pitch black. Many models offer full 1080p HD resolution.\n- Long detection range – IR illuminators extend detection from 20 to 150 feet or more. The camera can cover large areas at night.\n- Motion alerts – Intelligent motion detection can send alerts with video clips when movement occurs in the dark.\n- Lower costs – No need for expensive constant lighting. Night vision cameras see in the dark on their own.\n- Flexibility – Night vision models can be used indoors and outdoors. They work in all low light settings.\n- Smart home integration – View night vision feeds on your smartphone and integrate cameras with other smart devices.\nPositioning Tips for Security Cameras with Night Vision\nProper placement is key to getting the most out of your night vision security cameras. Follow these tips for optimal coverage:\n- Angle cameras to capture key areas like entryways, driveways, and backyard patios. Consider motion detector floodlights near doors.\n- Avoid pointing cameras into sunlight or reflective surfaces that could cause glare and overexposure.\n- Locate cameras under eaves or other covered spots to avoid precipitation and spider webs on the lens.\n- Elevate cameras for a wider vantage point if possible. Higher mounting spots like second floors and poles can expand the viewing angle.\n- Consider overlapping multiple camera views to reduce or eliminate blind spots in the coverage area.\n- Adjust the IR illuminator angle to reach outward toward the key areas under surveillance.\n- Test night vision performance after installation and make adjustments to ensure optimal visibility.\n- Set up alerts and remote access to view and respond to nighttime activity when it occurs.\nProper set up together with high-performance night vision technology allows continuous monitoring and protection of your property after dark. Give yourself peace of mind with cameras that never stop watching.\nWe hope this overview has provided useful insight into how night vision works in modern security cameras. The technology grants an extra set of virtual eyes on your home 24 hours a day. Talk to a security professional about implementing an automated camera system suited for your needs and budget. With the right equipment, you can rest easy knowing your family and home are protected day and night.\nContact Callaway Security if you’re around North and Central Georgia.","domain":"optical_engineering"}
{"url":"https://www.abacused.com.au/mirror-concave-convex-10","date":"2023-12-06T17:36:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100602.36/warc/CC-MAIN-20231206162528-20231206192528-00844.warc.gz","language_score":0.8583768606185913,"token_count":181,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__214182454","lang":"en","text":"Mirror - Concave/convex (10)\nDescription / Mirror - Concave/convex (10)\nOne side concave, one side convex, 100mm square. Interior mirror 70mm diameter. High quality mirror finish, protected with peel off film. Packet of 10.\nA mirror that bulges outwards is called a convex mirror. Convex mirrors show things the right way up and usually smaller.\nA mirror that bulges inwards is called a concave mirror. How you appear in a concave mirror depends on how close you are to it. From close you look bigger and right way up. Further away you look smaller and upside down.\nAn object placed between two mirrors can generate many images.\n|Alternative Codes||E2D006 F2D006 H2D006 L2D006 M2D006|","domain":"optical_engineering"}
{"url":"https://keplerscience.arc.nasa.gov/ExtendedMissionOverview.shtml","date":"2019-12-16T12:53:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540565544.86/warc/CC-MAIN-20191216121204-20191216145204-00519.warc.gz","language_score":0.8972648978233337,"token_count":617,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__11052551","lang":"en","text":"Science observations are taken at one of two timing settings: long (30-min) or short (1-min) cadence.\nThere are 94.6 million pixels within the CCD detector array across the focal plane. Data collected by 94% of those pixels cannot be saved because of hardware storage limits onboard the spacecraft and the bandwidth of communications between the spacecraft and Earth. Instead, data for specific targets are saved onboard as subimages every minute or every 30 minutes. The number of pixels in each subimage depends approximately on the brightness of the target therein. For example, 12th magnitude point sources in the Kepler bandpass (Kp = 12) have an average mask area of 32 pixels. The pixel size can be increased if necessary to accommodate extended objects. The 6% of stored pixels deliver time-tagged sub-images for 160,000-170,000 targets every quarter of operation.\nThe instrument has neither changeable filters\nnor dispersing elements. The one Kepler photometric bandpass has a half-maximum transmission\nrange of 430 to 840 nm. The detector has an image scale of 3.98\narcseconds per pixel. The image quality varies with position in the focal plane,\nwith 95% encircled energy diameters ranging from 3.1 to 7.5 pixels,\nwith a median of 4.2 pixels. The percentage of point-source flux\nconcentrated in the brightest pixel is between 20% and 62%, with a median\nvalue of 45%. Because of a very stable focal plane, the relative centroid positions of stars yields a precision better than 1 milliarcsecond over periods\nup to three months. Target photometry (i.e. time-tagged light curves) are produced by software pipeline. The Kepler exoplanet survey has been designed for performance across targets 9 < Kp < 15 stars, but the potential magnitude range for astrophysics is broader. Neglecting sources of astrophysical noise, Kepler will achieve a benchmark photometric\nprecision of 80 parts-per-million (ppm) on a Kp = 12 G2V star in 30 minutes of integration.\nA Kp = 20 target yields a photometric precision of 6% over the same integration time. Targets brighter than Kp = 11.5 are saturated on the detector but photometric precision is recoverable, albeit expensive in terms of pixels, for targets as bright as Kp = 4. Sub-images and target light curves are archived at the MAST\nKepler operations are divided into four quarters each year, separated by the quarterly rolls of the spacecraft. A new target list is uploaded to the spacecraft before every quarter. Long cadence targets can be removed or added to the target list every quarter. Short cadence targets can be removed or added to the target list every month. Kepler data are separated by the same scheme. Long cadence images and light curves are stored in files that span quarter. Short cadence images and light curves are stored in files that span a month.","domain":"optical_engineering"}
{"url":"https://fcosp.com/laser-distance-measurer","date":"2018-07-20T07:06:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591543.63/warc/CC-MAIN-20180720061052-20180720081052-00397.warc.gz","language_score":0.8693763613700867,"token_count":2753,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__218877463","lang":"en","text":"Laser Distance Measurer Review at this site help visitor to find best Laser Distance Measurer product at amazon by provides Laser Distance Measurer product features list, visitor can compares many Laser Distance Measurer product, simple click at read more button to find detail about Laser Distance Measurer features, description, costumer review, price and real time discount at amazon, Other Related Product Comparison Suggested for FCOSP Review :\nlaser distance measure , laser distance measurers , laser distance measurer bluetooth , laser distance measurer meter , laser distance measurer compact , digital laser distance measurer , outdoor laser distance measurer , below we provides Laser Distance Measurer features List.\nThis Bosch Compact Laser Distance Measure, 120-Feet GLM 35 from: Bosch, Their ASIN : B00VI7WBWE , Small doesn't mean modest in a laser measure with functions that include area, distance, length, volume, continuous measurement and addition/subtraction. Simply press the measure button to activate the laser and begin measuring in real time. Backlighting allows user to see information in dark areas with better resolution. Handy pocket-s laser distance measurer.\nACCURACY: Features long-range measuring with extreme accuracy and measures distances up to 120-feet to within 1/16-inch. as well as area, length, volume, continuous measurement and addition/subtraction\nEASY TO USE: Simple, one-button operation - press button once to begin measuring. The GLM 35 is compact and small enough to fit in any pocket\nLIVE MEASURING: Provides default real-time measurement that adjusts as you move closer and farther from target, just like a tape measure\nThis DEWALT DW03050 165-Feet Laser Distance Measurer from: DEWALT, Their ASIN : B00FKMS2WG , The DEWALT DW03050 165' Laser Distance Measurer has the ability to calculate area and volume, making job estimates quick & easy with automatic calculations. The indirect height measurement uses Pythagoras to measure distances even when point A and/or point B isn't accessible for linear measurement. A memory unit stores last 5 measuremen laser distance measurer.\nDEWALT DW03050 165-Feet Laser Distance Measurer laser distance measurer Features\nAutomatic area and volume calculations\nIndirect height measurement uses Pythagoras to measure distances\nMemory unit stores last 5 measurements. Measuring Range(m): 50 m\nThis Stanley STHT77425 TLM30 Pocket Laser Distance Measurer, 30' from: Stanley, Their ASIN : B074WTM8PH , The STANLEY STHT77425 TLM30 30 ft Pocket Laser Distance Measurer allows you to capture measurements on the go with the STANLEY TLM30 Pocket Laser Distance Measurer. The pocket size is easy to carry and the 30’ range (10m) is great for most interior measurements. This units features accuracy of 1/4\" at 30 ft. Powered by a lithium-Ion b laser distance measurer.\nStanley STHT77425 TLM30 Pocket Laser Distance Measurer, 30' laser distance measurer Features\nAccuracy: 1/4\" at 30 feet\n30 foot range for tackling most measuring tasks\nLithium-Ion battery for on the go USB charging\nLaser Class 2/ output less than or equal to 1mw, 630-690 Nm\nThis Bosch Laser Distance Measurer, 825 Feet GLR825 from: Bosch, Their ASIN : B003NSBG7C , The Longest distance in the market, ideal for outdoor applications. Fast, easy, accurate measuring. laser distance measurer.\nThis Bosch 265-Feet Lithium-Ion Laser Distance Measurer GLM 80 from: Bosch, Their ASIN : B005AZZNXE , Measures distance up to 265 ft. with up to 1/16\" accuracy. Built-in tilt sensor - calculates angle in two axis for more accurate measurements. Integrated lithium-ion battery - for up to 25,000 measurements per charge. Backlit display with tilt-screen technology - offers easy viewing in all directions. Min/max. measurement mode. Multi-su laser distance measurer.\nACCURACY: The Bosch GLM 80 Laser Distance Measurer measures distances up to 265 ft. with up to 1/16 inch accuracy with a built-in tilt sensor to calculate angles in two axis for more accurate measurements.\nPERFORMANCE: Get the job done with Bosch's integrated lithium-ion battery that allows up to 25,000 measurements per charge ; Battery: 3.7 Li-ion Battery\nFUNCTIONALITY: The backlit display with tilt-screen technology offers easy viewing in all directions. It even allows the GLM 80 to be legible whe\nThis DEWALT DW0889CG TSTAK Laser Kit: DW088CG Cross Line + DW099E 99ft Laser Distance Measurer from: DEWALT, Their ASIN : B076PC53MM , The DEWALT DW0889CG TSTAK Laser Kit: DW088CG Cross Line + DW099E 99ft Laser Distance Measurer. DW088CG Cross Line with Green Beams + DW083CG 3-spot Laser with Green Dots. The DW088CG is designed for extra long run time and the convenience of rechargeable power tool batteries. It features self leveling cross lines that projects bright cr laser distance measurer.\nDEWALT DW0889CG TSTAK Laser Kit: DW088CG Cross Line + DW099E 99ft Laser Distan laser distance measurer Features\nProjected lines: up, down & forward plumb dots\nACCURACY: DW088CG +/- 1/8\" at 30ft, DW099E +/- 3/32\" at 30ft\nRANGE: DW099CG - 165' (Radius) Visible Range 65', DW099E 100' Range\nRUN TIME: DW088CG 16 Hrs (1 Line) 8 Hrs (All Lines) ; Green beam for enhanced visibility & range\nLASER CLASS: DW088CG - Class 2, < 1.5mw output, DW099E Class 2, < 1mW at 620 to 690 nm\nThis Laser Distance Measurer,Laser Tape Measure 100M/328ft with 2 Bubble Levels Pythagorean Mode and Area, Volume Calculation and Range Finder from: Tuirel, Their ASIN : B078K4Q22C , Tuirel T100 Handheld Digital Laser Distance Meter is an instrument that measure accurate distance from 0.03 ~ 100m with accuracy of ±2mm. It is intended to measure Lengths, widths, Height and Clearances. It has Pythagorean Theorem mode to take measurement in difficult to measure situations.It is hand-held and easy to operate.\n< laser distance measurer.\nLaser Distance Measurer,Laser Tape Measure 100M/328ft with 2 Bubble Levels Pyt laser distance measurer Features\n▲Accurate Measurement: Suitable for Home Improvement and help you get data accurately and rapidly. The horizontal bubble and vertical bubble can help you to align and make measurement result more accurate.\n▲Measurement Range: 0.03-100M; accurate to ±2mm; support both imperial and metric units\n▲Powerful Functions: Tuirel T100 intended to measure Lengths, widths, Height and Clearances. It has Pythagorean Theorem mode to take measurement in difficult to measure situations.It is hand-held and eas\nDEWALT DW030PL Lightweight Laser Distance Measurer, 30 ft Range, -1/8 in, LCD laser distance measurer\nThis DEWALT DW030PL Lightweight Laser Distance Measurer, 30 ft Range, -1/8 in, LCD Backlit, Li-Ion Battery, Plastic from: DEWALT, Their ASIN : B072NF73DS , Compact, lightweight design for easy storage; one button for simple operation; point and click operation; TPE over-mold for secure grip and slip protection; measuring range - 1/2 ft - 30 ft (0.15-9M); accuracy - +/- 1/8\"; auto power saving - 50 seconds; metric and Imperial units. laser distance measurer.\nDEWALT DW030PL Lightweight Laser Distance Measurer, 30 ft Range, -1/8 in, LCD laser distance measurer Features\nBosch Bluetooth Enabled Laser Distance Measure with Color Backlit Display GLM laser distance measurer\nThis Bosch Bluetooth Enabled Laser Distance Measure with Color Backlit Display GLM 50 C from: Bosch, Their ASIN : B015FCJTEA , Whether it's the upgraded backlit color display or Bluetooth technology that's compatible with both Bosch free apps (Measure & document and floor plan), this is a laser measure that's ready for anything. The Bosch GLM 50 C packs a lot of functions, including the basics of real-time length, length, area, volume and indirect. All-around s laser distance measurer.\nBosch Bluetooth Enabled Laser Distance Measure with Color Backlit Display GLM laser distance measurer Features\nACCURACY: Features long-range measuring with extreme accuracy and measures distances up to 165-feet to within 1/8-inch.\nUPGRADES: Includes an upgraded color display with back lighting for increased visibility as well as Features Bluetooth functionality to conveniently transfer and store measurements from the laser measurer to a smart device via the Bosch app.\nADVANCED: The Bosch GLM 50 C's built-in inclinometer allows for advances features like angles, min/max, stake out and double indirect.\nLaser Distance Measure, ieGeek 328ft Handheld M/In/Ft Laser Distance Meter Mea laser distance measurer\nThis Laser Distance Measure, ieGeek 328ft Handheld M/In/Ft Laser Distance Meter Measuring Device Laser Tape Measure Rangefinder, Pythagorean Mode/Measure Area Volume Capacity/LCD Display/Self-Calibration from: ieGeek, Their ASIN : B01N2B6ABR , ieGeek T100 328 Feet Laser Measure ieGeek laser measure supports area, distance, length, volume, continuous measurement, addition/subtraction and indirect Pythagoras Measurement. Simply press the read button to activate the laser and begin measuring in real time. Backlighting allows user to see information in dark areas with laser distance measurer.\nLaser Distance Measure, ieGeek 328ft Handheld M/In/Ft Laser Distance Meter Mea laser distance measurer Features\n▲HIGH ACCURACY: Wide measuring range from 0.05 to 100m, high accuracy measuring +/-2mm, multi-unit selection of meter, inch and feet. (Please check page 3 on the user manual for Unit Setting.) Self-calibration accuracy from -9 to 9 mm. ieGeek laser measure is bubble level designed for more accurate.\n▲MULTIPLE MEASURE MODES: Area, distance, volume, continuous measure, addition and subtraction, indirect Pythagoras Measurement, a great laser distance measurer kit.(Please check page 3 on the user manual for\nWhat people says about Laser Distance Measurer Review\nLaser Distance Measurer Review\nComparison Best buy minimizes iconic price tag logo | pymnts., The news comes as best buy is opening its first big box store in seven years — a 36,000-square-foot store in a suburb of salt lake city. the store is located in a mixed-use development called station park and is scheduled to open in the fall, the startribune reported.. Comparison Best buy | official online store | shop & save, Shop best buy for electronics, computers, appliances, cell phones, video games & more new tech. in-store pickup & free 2-day shipping on thousands of items.. Best Best buy store reviews: | consumeraffairs, Original review: july 9, 2018. on june 24, 2018 went to best buy in boca raton to buy a microwave oven. since \"they don't keep microwave ovens in stock at the store\", an order had to be placed and paid for and in two days, i would receive the oven (on wednesday, june 27).. Best Best buy expands private-label brands - wsj, Best buy now sells hundreds of electronic products under an umbrella of five house brands that includes insignia and dynex televisions, rocketfish video cables, geek squad flash drives and init electronics cases and accessories.. Best Brand news today, Brand news today provides you with the latest breaking news and authoritative insights and opinions on business, finance, technology, sports, entertainment, fashion, culture, travel health, lifestyle, and more.. Best Deal day: electronics deals - buy, Shop the best buy deal of the day for deals on consumer electronics. watch for laptop deals, computers on sale, and many other great daily offers. watch for laptop deals, computers on sale, and many other great daily offers.. Post at Laser Distance Measurer Review.","domain":"optical_engineering"}
{"url":"https://www.capillus.com/compare-laser-devices","date":"2018-07-16T16:09:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589404.50/warc/CC-MAIN-20180716154548-20180716174548-00051.warc.gz","language_score":0.7778719663619995,"token_count":435,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__213178172","lang":"en","text":"Take the Capillus® Challenge. Using the chart below, compare our products with other leading low level laser therapy treatment devices. Below, devices are evaluated by both technical specifications and user experience. Technical specifications include laser wavelength, power per laser, number of lasers, and total laser output. User experience describes how easily the device can be used on a daily basis, an important factor when choosing a treatment that will likely require months of use.\nFor Hair Loss\n|Capillus272 Pro||Laser Combs*||In Office Domes*|\n|For Home Use|\n|Treatment Protocol||6 mins every day||Comb Hair 3X / Week\nfor 15 minutes\n|Sit Under Dome 3X / Week\nat Medical Clinic\n|Power per Laser||~5 mW||5 mW||5 mW|\n|Number of Lasers||272||9||82|\n|Total Power Output||~1360 mW||45 mW||410 mW|\n|Laser Wavelenghth||650 nm||650 nm||650 nm|\n|Available From||Physicians Only||OTC||Physician In-Office Only|\n|FDA Clearance Status||Cleared for treatment of androgenic alopecia in adults||Varied||Varied|\n|Warranty Period||3 Year||5 Months||N/A|\nMore on this chart: The chart above compares the different devices available for administering low level laser therapy for hair loss. Lasers produce and emit light at specific wavelengths and watts of power. All the devices compared here emit 5mW of power per laser at wavelengths of 650 nanometers. The wavelength of laser light is chosen for laser devices based on its specific purpose. As per the International Society of Hair Restoration Surgeons, “The laser light used for treatment of pattern hair loss is visible red light with wavelength of 630-670 nanometers and low power (wattage),” [i].\n“Low Level laser therapy for the treatment of male and female pattern hair loss”. International Society of Hair Restoration Surgery.","domain":"optical_engineering"}
{"url":"https://www.woodneed.shop/products/ring-lens-magsafe-magnetic-drop-proof-iphone-case","date":"2023-03-22T19:31:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944452.74/warc/CC-MAIN-20230322180852-20230322210852-00613.warc.gz","language_score":0.7828506231307983,"token_count":394,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__66027309","lang":"en","text":"Note: Applicable to iPhone models. best waterproof shatterproof iphone case\nAbout this item\n- [Best Bundle] Your order will come with a transparent protective case compatible with your iPhone. There is nothing more perfect than such a combination. Please note: There are protective films on the inside and outside of this protective case, please make sure to remove the protective film before you use it.\n- [Non-yellowing material] We use a more expensive German Bayer material and an anti-oxidation layer, which will effectively isolate ultraviolet rays and will not turn yellow over time, while other transparent cases may be discoloured within a month.\n- [5A Grade Screen & Lens Guard] The raised frame can prevent the screen and camera from cracking and scratching. 0.5mm raised camera edge and 1mm raised screen edge to provide comprehensive protection for your iPhone 13 Pro Max.\n- [4 Anti-collision Angle Design] Equipped with a patented anti-collision angle, 4 corner elastic airbags are resistant to impact, and strongly protect the phone from falling and collision.\nSize: iPhone 12,iPhone14,iPhone 13,iPhone 12 Pro,iPhone 12 Pro Max,iPhone13 Pro Max,iPhone13 Pro,iPhone14 Pro,iPhone14 Pro Max,iPhone14 Max\nFunction: fall protection\nColor: pure black/transparent magnetism eagle eye metal lens ring, black red/transparent magnetism eagle eye metal lens ring, navy blue/transparent magnetism eagle eye metal lens ring, far peak blue/transparent magnetism eagle eye metal lens ring, pale green/transparent magnetism eagle eye metal lens ring,l ilac purple/transparent magnetism eagle eye metal lens ring,\n1 x phone case\nCertain products are limited to the United States. We are working to expand our delivery operations soon.","domain":"optical_engineering"}
{"url":"https://www.foogle.online/new-brain-implant-model-may-help-blind-people-gain-rudimentary-vision/","date":"2021-05-07T07:09:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988775.25/warc/CC-MAIN-20210507060253-20210507090253-00173.warc.gz","language_score":0.9374532699584961,"token_count":420,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__79861949","lang":"en","text":"Researchers at the Netherlands Institute for Neuroscience (NIN) said that brain implants can help in the restoration of vision for the visually impaired.\nThe study, published in the journal Science, revealed that high-resolution implants in the visual cortex of people who are blind can help them understand artificially-induced percepts and shapes.\nFor the research, scientists at NIN led by Pieter Roelfsema, are using new implant production and implantation technologies, advanced materials engineering, microchip manufacturing, and microelectronics, to develop more stable devices and durable than previous implants.\nFor the experiment, the team designed high-resolution implants consisting of 1,024 electrodes and implanted them in the visual cortex of two short-sighted monkeys.\nTheir goal was to create interpretable images by delivering electrical stimulation simultaneously via several electrodes, to generate a percept composed of several phosphenes, the study stated.\nThe researchers made the monkeys perform a simple behavioural task in which they made eye movements in order to signal the location of a phosphene that was triggered during electrical stimulation by an individual electrode.\nLater, the researchers assigned them more complex tasks such as a motion direction task, in which micro-stimulation was delivered on a sequence of electrodes, and a letter discrimination task, in which micro-stimulation was delivered to eight to 15 electrodes simultaneously.\nThe monkeys were able to recognise shapes and percepts, including lines, moving dots, and letters, using their artificial vision.\nXing Chen, a postdoctoral researcher in the Roelfsema team explained: “Our implant interfaces directly with the brain, bypassing prior stages of visual processing via the eye or the optic nerve. Hence, in the future, such technology could be used for the restoration of low vision in blind people who have suffered injury or degeneration of the retina, eye or optic nerve, but whose cortex visual remains intact.”\nThis research stated that this rudimentary vision will help blind people navigate in unfriendly environments and interact more easily in social settings. This will further improve their independence.","domain":"optical_engineering"}
{"url":"http://doron.sadja.com/between-roses-and-violets/","date":"2023-09-30T18:29:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510707.90/warc/CC-MAIN-20230930181852-20230930211852-00819.warc.gz","language_score":0.9065778851509094,"token_count":184,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__121439396","lang":"en","text":"3D Performance @ Berlin DE\nMarch 30th, 2018\nPart of an ongoing series of works exploring perceptual manipulation through different types of glasses or masks, “Between Roses and Violets” is a live audiovisual work using traditional 3D anaglyph glasses. Considered red and blue, but actually red and cyan (equal parts blue and green), anaglyph glasses work by allowing only red light to pass through one eye, and only all other colored light (blue and green) to pass through to the other – creating possibilities for two completely separate images to enter each eye. Traditionally, this is used to simulate 3D imagery, but in “Between Roses and Violets” this is used to create shifts in perception of complex textures, strobing color blocks, and pulsating lines that move in synchronicity with dense, almost white noise sound.","domain":"optical_engineering"}
{"url":"https://itsourcedistribution.com/products/491027-001-i-genuine-hp-15m-multi-mode-om3-lc-fc-cable","date":"2023-09-22T20:30:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506423.70/warc/CC-MAIN-20230922202444-20230922232444-00353.warc.gz","language_score":0.910372793674469,"token_count":132,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__161009051","lang":"en","text":"Multimode OM3 LC/LC Fiber Optic cable, 15m (49.2ft) long - Duplex zipcord graded index 50/125um multimode fiber optic cable with LC connectors on each end (Aqua Color) - Optical performance: 2000MHz/km\nListing may include stock images, please contact us for confirmed photos of our inventory.\nWe ship all products according to manufacturer specifications. If the manufacturer does not include an option as standard with the product (power supply, fan tray etc) we do not either unless specifically stated. If you are have questions regarding what is included with a product, please contact us.","domain":"optical_engineering"}
{"url":"https://www.performance-audio.com/blog/oled-vs-led/","date":"2020-07-14T22:00:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657151761.87/warc/CC-MAIN-20200714212401-20200715002401-00422.warc.gz","language_score":0.9599143266677856,"token_count":476,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__93438792","lang":"en","text":"In the list of acronyms that home theater equipment comes with these days, two are particularly vexing because they are so very similar and yet so very different. If asked what the difference between LED and OLED is, most people wouldn’t be able to answer the question. We at Performance Audio can.\nShine a Light\nThe first thing to help distinguish LED from OLED involves light. To be more accurate, LED displays are actually LCD displays that are backlit by LEDs. As a result, the overall brightness of picture is quite high. The downside is that the image quality cannot be fine-tuned quite as well as far as colors and blacks are concerned. When you’re adjusting an LED picture, you’re adjusting everything all at once, essentially.\nMeanwhile, OLED displays are generating the light directly. You’re not seeing LCD pixels backlit by an LED. Each pixel is its own LED. This makes for great fine-tuning of colors and blacks, but overall picture brightness is not quite as high as an LED display.\nPlaying the Angles\nOLED displays have a degree of uniform clarity from any viewing angle, much the same way that plasma TVs used to have, though with considerably longer lifespan. Since the pixels are generating light, the image remains easily seen across a broad viewing arc.\nLED displays, though, are best seen straight on. If the colors look darker or “shadowed” in some fashion, chances are that you’re at too great an angle to view the image clearly. While several innovations have broadened the viewing arc for LED displays, it’s still not quite as expansive as OLEDs.\nAbundance and Scarcity\nProbably the single biggest difference between LEDs and OLEDs lies in the availability and price points of the two types of display. LED displays are cheap to manufacture and widely available from an exhaustive range of vendors. A bare-bones home theater display can be had for less than a grand.\nOLED displays, on the other hand, are labor- and resource-intensive, and only a few manufacturers produce them. As a result, they’re very much on the high end of the scale when it comes to price, owing to the production costs and limited availability.\nGet the Best at Performance Audio Today!","domain":"optical_engineering"}
{"url":"http://bkeyehospital.com/blog.html","date":"2023-01-29T09:53:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499710.49/warc/CC-MAIN-20230129080341-20230129110341-00876.warc.gz","language_score":0.910239577293396,"token_count":597,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__221248934","lang":"en","text":"What is Cataract? Clouding or opacification of the natural lens is cataract. Cataract caused by old age (most commonly) or other reasons affects the clarity and the visual acuity. The lens startes loosing its transparent and become transluscent and then opaque. Cataract is the most common cause of vision impairment and blindness in the world.\nThe cataract is treated by surgery. An eye surgeon will remove your cloudy lens and in most cases, replace it with a clear, man-made focusing lens (intraocular lens implant, or IOL). The replacement lens implant remains permanently inside your eye and does not degrade.\nCataract surgery is usually a day case procedure, which means that you will go home on the day of your operation. However, you may wish to arrange for someone to stay overnight with you at home on the day of surgery.\nCataract is an old age problem where the natural lens become opaque causing dimness of vision. Our Hospital is equipped with state of the art equipments, latest cataract surgery with foldable and rollable lens. we have an imported operating microscope (Takagi Japan), Laser phacoemulsifier for 0.8mm sutureless, padless cataract surgery, ultra surgical instruments for superior surgical safety and quick recovery from blindness. Latest ultrasonic. A-scan biometer (Uniscan, USA) is installed to detect accurate lens power.\nTo cope up increasing diabetic patients with eye complications called diabetic retinopathy, we have advanced fundus camera (Carl Zeiss,Germany) to study the retinal vascular abnormality and have Argon Green Laser(Carl Zeiss,Germany) to coagulate it. We have high-tech small pupil ophthalmoscope (Welch allyn-USA) to detect earliest retinal changes as diabetics are to be examined by eye specialists once every 3 months. We have counselling wing to educate diabetics regarding the hazards of un controlled diabetes and alterations that are to be made in the life style to improve the diabetic status.\nBy manipulating the corneal surface, we can remove various visual defects. we have extensive collection of latest contact lenses soft, semi soft, bifocal, daily wear, continuous wear, disposable (daily, weekly, biweekly, monthly, bimonthly, quarterly) cosmetic and coloured. Artificial and prosthetic eyes are also available. We have the latest Zyoptic lasik laser utilizing wavefront technology to correct all short sight and long sight. Advanced Ophthalmometer (Bausch & Lomb) and Topograph are used to measure the curvature of cornea.\nWe have Auto-refraco-meter (Nidek, Japan) for computerised eye testing and streek retinoscope to find out smallest and accurate power and axis for prescribing glasses and contact lenses.","domain":"optical_engineering"}
{"url":"https://www.smartlockrx.com/news/do-you-know-what-sensors-the-fingerprint-lock-has/","date":"2024-03-04T06:26:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00686.warc.gz","language_score":0.9366011023521423,"token_count":466,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__166530074","lang":"en","text":"Sensors Fingerprint sensors are mainly optical sensors and semiconductor sensors. Optical sensor mainly refers to the use of optical sensors such as coms to obtain fingerprints. Generally, the picture is made into a whole module in the market. This kind of sensor is low in price but large in size, and is generally used in fingerprint locks, fingerprint access control and other products. Semiconductor sensors are mainly monopolized by fingerprint sensor manufacturers such as Swedish fingerprint cards. They are divided into wipe-on type and surface type. Its price is relatively high, but its performance is still good. It is mostly used in important fields such as customs, military, and banking. Nowadays, with people’s awareness of home and the improvement of court security awareness, more and more manufacturers apply semiconductor surface sensors to the civilian field, and the user experience is also better. The product is small, the price is low, but the experience is poor. The speed and direction of scraping have an effect on the effect. Fingerprint module As the front end of the industry chain, the software companies and fingerprint lock research and development enterprises of China provide fingerprint module groups. —- Fingerprint anti-theft lock manufacturers\nMost of these modules are imported from abroad for further improvement and provide corresponding secondary development space. Only after secondary development can the fingerprint module really play a role. The sensors of fingerprint locks are divided into optical sensors and semiconductor sensors. Optical Sensors Using Optical Sensors to Capture Fingerprint Images Optical sensors on the market are generally a complete module. The advantages of optical sensors are low price and strong anti-static ability, but due to the large size of optical sensors, they cannot identify living fingerprints, nor can they verify wet and dry fingers. Generally used for fingerprint locks and fingerprint door bans, etc. There are two types of semiconductor sensors: wipe-on type and surface type. Surface type is more expensive but has limited performance. Commonly used in military, banking and other important industries. Fingerprint combination lock proxy semiconductor sensor uses the principles of capacitance, electric field, temperature and pressure to collect fingerprints. Forged fingerprint materials cannot be recognized by semiconductor sensors, so semiconductor fingerprint chips are expensive, but their security is naturally high.\nPost time: Jul-06-2022","domain":"optical_engineering"}
{"url":"http://www.abcscope.com/col.jsp?id=120&","date":"2024-02-22T05:34:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473690.28/warc/CC-MAIN-20240222030017-20240222060017-00877.warc.gz","language_score":0.9173345565795898,"token_count":449,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__114558955","lang":"en","text":"HI-SC01 is a digital sight for long-distance use. It has excellent effect during the day and supports1080p@60fps HD video recording. In the darknight, you can still clearly aim at the target in the distance by using the standard flashlight of the product.\nExcellent image effect\nThe product adopts Sony image sensor with a resolution of 2 million pixels. Under the condition of good lighting environment during the day, the image color is realistic and the display is clear and bright, which makes you watch the display screen image very clear when hunting.When it's all dark at night, you need to turn on the 850nm flashlight to make hunting easier.\nHigh quality optical lens\nHI-SC01 adopts self-developed high-quality lenses and optimizes lens parameters for hunting scenes to ensure bright colors during the day and outstanding nightvision performance at night. The assembly and testing of the lens are very strict. When we were doing the limit test，The product has conducted 10000 impact tests on the impact platform to ensure that there are no problems.\nPowerful image processor\nHi-SC01 has a built-in 12nm quad core image processing CPU. The product has strong image computing ability. When you use the device, whether you operate the keys or observe the image on the display screen, it is very smooth.\nUnique one click scene switching function\nOur products include daytime mode, and night mode.\nIn daytime mode, when the image on the display screen is a little gray in the face of strong sunlight or poor air quality,You just need to turn on the effect enhancement , and the image on the display screen will be clear and bright immediately.\nIn the night mode, the surrounding environment is completely dark. Turn on the 850nm flashlight and you will see it very clearly.\nCrosshairs of various colors and shapes\nHi-SC01 has built-in six colors and eight cross shapes. You can use it freely in 48 combinations.\nPowerful 850nm flashlight\nHi-SC01's own 850nm fill light flashlight is small in size, but it has a very powerful light source output, which can help you see everything in a dark night environment.","domain":"optical_engineering"}
{"url":"https://www.borealterrainpark.com/understand-with-regards-to-diverse-kinds-associated-with-barcode-scanning-systems/","date":"2022-08-19T21:20:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573760.75/warc/CC-MAIN-20220819191655-20220819221655-00349.warc.gz","language_score":0.9359826445579529,"token_count":963,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__177622515","lang":"en","text":"Making use of barcode technological innovation in businesses is helpful in a lot of techniques. It enhances operational effectiveness, reduces mistakes, will save time, and boosts information accessibility. Different companies, irrespective of their dimensions, use barcodes for their business functions.\nEan code are essential resources which ease enterprise processes in production, schooling, healthcare, warehousing and many other fields. Listed here is a description of barcode scanners that use different systems.\nWhat is a barcode?\nA barcode is an optical equipment-readable info containing a collection of black bars and white areas of assorted widths. The primary purpose of employing a barcode is to quickly and properly entry information through the code by an automatic method. The products that study knowledge existing on barcodes are referred to as barcode scanners.\nHow does a barcode scanner operate?\nA barcode scanner consists of an illumination source, sensor, and decoder. An illumination source is used to illuminate the bars and areas on the barcode. The black bars absorb light from the supply and white spaces mirror it. The sensor detects the mirrored light from the barcode and generates a signal of varied voltage that signifies the intensity of reflection. A decoder with certain software decodes the sign into a readable text that is exhibited on the check. Data gathered in this way is saved and managed by specific databases. Allow us seem at barcode scanners and their distinct scanning technologies.\nDistinct kinds of scanning technologies\nBarcode scanners use diverse scanning technologies this sort of as laser and imaging technologies. The pursuing are various sorts of barcode scanners.\nThey are also known as as wand scanners and are suited for lower-volume and desktop purposes. They incorporate a photodiode that is placed up coming to a light resource. When the scanner is swiped across the barcode in a steady motion, the photodiode steps the depth of the reflected gentle. Considering that they are manually swiped, wand scanners are not minimal by the width of the barcode. 1 needs to guarantee that they are swiped at constant rate of pace at a specific angle. Pen-variety scanners are low-cost, small, and very tough.\nLaser barcode scanners\nA laser beam is utilised as a mild source for capturing barcode details. They incorporate an oscillating mirror or a rotating prism which moves the laser beam back and forth across the barcode. Laser barcode scanners are very specific and correct. They can read through barcodes from increased distances also. They are utilized largely in spots the place barcodes need to have bright light-weight for reading through. They are suited for applications necessitating long assortment or high density scanning.\nOmni-directional barcode scanners\nThe name by itself indicates that these scanners can study barcodes in any course. They largely use laser beams as a light resource. A established of set mirrors and a rotating mirror current in omni-directional barcode scanners generate styles of laser beams. Like laser scanners, they can also go through info from greater distances. They have substantial effectiveness and consequently can even read through inadequately printed, torn, or wrinkled barcodes.\nAs they read barcodes on items irrespective of their orientation, they increase the speed of scanning method. They are best for reading through barcodes a number of inches away for retail functions and also for reading distant barcodes like these on industrial conveyors.\nCCD (Billed Coupled Device) scanners, also called as linear impression scanners, measure the depth of light by a series of little light-weight sensors. Hundreds of sensors arranged in a row build a voltage pattern that is similar to the pattern in the barcode. CCD scanners measure the emitted ambient light and that’s why are distinct from laser scanners. They are ideal for apps in retail, distribution, inventory and delivery. As they do not have any moving elements like rotating mirrors, they are much more resilient than laser scanners.\nSecond scanners use a tiny digital camera for capturing an graphic of the barcode. Innovative digital impression processing strategies are utilised to decode the barcode from the image. The benefit of making use of 2d scanners is that they can go through barcodes moving at more quickly charges and can be utilized for industrial conveyor scanning. They can read through 1D or 2nd barcodes omni-directionally and some can also capture images of destroyed packages or signatures.\nSelect the barcode scanner primarily based on the variety of software, kind of barcode, and the atmosphere in which you use it. Don’t forget, variety of a correct scanner assists you in strengthening the performance of your organization.","domain":"optical_engineering"}
{"url":"http://candorvision.com/professionals/hylo/hylo-and-contact-lenses/","date":"2018-07-17T17:06:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589757.30/warc/CC-MAIN-20180717164437-20180717184437-00307.warc.gz","language_score":0.8843990564346313,"token_count":153,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__149093152","lang":"en","text":"HYLO™ is recommended for rewetting contact lenses to minimize dryness. HYLO™ is compatible with hard and soft contact lenses and can be used while wearing contact lenses.\nWhy is HYLO™ suitable for contact lens wearers?\nHYLO™ was tested in subjects wearing:\n- Hydrogel lenses\n- Silicone hydrogel lenses\n- Conventional soft lenses\n- Rigid gas permeable lenses (RGP)\n- No irreversible depositions\n- No tolerance problems\nHYLO™ can be recommended to contact lens wearers for moisturizing / rewetting.\nIs HYLO™DUAL suitable for contact lens wearers?\nHYLO™DUAL can be used while wearing hard and soft contact lenses.","domain":"optical_engineering"}
{"url":"https://meetings.vtools.ieee.org/m/220203","date":"2020-05-30T18:17:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347410284.51/warc/CC-MAIN-20200530165307-20200530195307-00161.warc.gz","language_score":0.9108569622039795,"token_count":575,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__21313957","lang":"en","text":"Photonics Seminar: Compound III-V Semiconductor based Classical and Non-Classical Light Emitters at Visible through Mid-Infrared\nIII-V compound semiconductor materials and photonic devices are expected to play an important role in addressing ongoing and future challenges in the field of communication and sensing. Ultra high-speed, short and long-range communication links; portable and power-efficient computing devices; solid-state lighting; ultra-fast interconnects; and high-performance optical sensors in sensing applications are critically depending on the success of next-generation emerging semiconductor materials and the resulting photonic devices. In this talk, I will mainly discuss about recent cutting-edge research efforts made by my team at OSU on III-V semiconductor materials and photonic devices. In particular, an emphasis will be given on nitride-based electrically-pumped lasers with emission wavelengths of the ultraviolet and blue regions. Design, fabrication and testing results of such lasers will also be presented here. In addition, I will present the recent theoretical and experimental results of advanced antimonide-based lasers, being useful for sensing and defense applications. Considering a significant promise of quantum technologies, I will also briefly show how my research enters into the quantum territory for developing non-classical devices including single photon emitters that could enable robust communication-based applications, such as electronic warfare, signal intelligence, and counter-digital radio frequency memory.\nDate and Time\n- Date: 07 Nov 2019\n- Time: 10:00 AM to 11:00 AM\n- All times are US/Eastern\n- Add Event to Calendar\n- Rochester Institute of Technology\n- University Gallery\n- Rochester, New York, New York\n- United States\n- Building: Booth Hall (7A)\n- Click here for Map\nProf. Shamsul Arafin of The Ohio State University\nDr. Shamsul Arafin is an Assistant Professor in the Electrical and Computer Engineering Department at The Ohio State University. Prior to joining OSU, he worked as a Project Scientist in the Department of Electrical and Computer Engineering at the University of California at Santa Barbara (UCSB), USA. He received the B.Sc. degree in Electrical and Electronics Engineering from Bangladesh University of Engineering and Technology (BUET), Bangladesh in 2005 and the M.Sc. degree in Communication Technology from Universität Ulm, Germany, in 2008. He received his Ph.D. degree from Technische Universität München, Walter Schottky Institut Germany in 2012. He then joined the Nanophotonics Group of Electrical and Computer Engineering Department at McGill University as a post-doctoral fellow. He also worked as a Postdoctoral Research Scholar in the Department of Electrical Engineering at the University of California at Los Angeles, CA, USA.","domain":"optical_engineering"}
{"url":"https://www.xiron.us/product/22-pack-like-paper-screen-protector-for-ipad-pro-12-9-2020-4th-gen-with-camera-lens-protector-high-touch-sensitivity-no-glare-scratch-for-ipad-pro-12-9-matte-screen-protector-compatible-with-ap/","date":"2023-03-28T23:56:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948900.50/warc/CC-MAIN-20230328232645-20230329022645-00168.warc.gz","language_score":0.8334424495697021,"token_count":436,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__72535859","lang":"en","text":"[2+2 Pack] Like Paper Screen Protector for iPad Pro 12.9 2020 (4th Gen) with Camera Lens Protector, High Touch Sensitivity No Glare Scratch for iPad Pro 12.9 Matte Screen Protector, Compatible with Apple Pencil or Other Active Stylus Pens\n- [Perfect Match]: Exclusively designed for iPad Pro 12.9 2020 (4th Gen) touch screen and lens protection. Fit Models: A2609/A2232, please check the back bottom with your iPad to find the model number. This Like Paper screen protector quite smooth and highly sensitivity. And the lens protector has ultra-high light transmission and optical-grade effects. Perfect fits your need.\n- [Like Paper screen protector]: Like Paper screen protector special designed for Apple Pencil/ Stylus, feels just like you are writing on paper, offers like paper touch, friction, and feel. It is mainly used for drawing, writing or sketching. With no-glare function to suppress light reflection. Fast and accurate response to the Face ID as well.\n- [Camera Lens Protector]: Camera Lens Screen Protector made from Tempered Glass, is up to 9H hardness. Only 0.2 mm thick with a light transmittance of 99%. No-glare, no-fingerprints, and high transparency to ensure original high resolution for pictures and videos. Never effects the photos quality even at night when you open the flash.\n- [Case Friendly & Scratch Resistant]: Extra space around the edges ensures compatible with most tablet cases. The lens protector does not effect the camera and covers the whole camera lens area perfectly without covering up any lenses. Both made of High-Quality Materials, Maximum Protection for your device screen and camera lens screen from scratches of sharp objects.\n- [Easy Installation]: The air-exhausting adhesive makes the PET Film(Not Glass) automatically attach with iPad screen smoothly, hassle-free and bubble-free. The lens protector with bubble-free adhesive for easy installation and no leftover residue when you take it off.\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://www.pacifictexchem.com/optical-brightening-agent.html","date":"2020-09-26T01:54:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400232211.54/warc/CC-MAIN-20200926004805-20200926034805-00129.warc.gz","language_score":0.9318748712539673,"token_count":241,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__244074784","lang":"en","text":"Optical Brightening AgentOptical Brightening Agents is added to many substrates to reduce yellowing, improve whiteness and enhance the brightness of the product. Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellow color of the substrate and impart a pleasing whiter-than-white appearance. Optical brighteners give more intensity to some colors as well. Different Types of Optical Brightening Agent find suitable application on different substrates like Cellulose, Nylon, Silk, Wool, Paper, Detergents, Soaps, Plastics, Printing Inks, Coatings and Polymers. We are also one of the leading names in the field of Optical brighteners which are also known as optical brightening agents. These have in them capacity to absorb light in violet/ultraviolet region of electromagnetic spectrum ad subsequently re-emit light in blue region. With the coloring matter, be it natural/present as contaminant in fiber being generally decolorized by different bleaching methods, the appearance of textile substrate is creamish after bleaching. Thus it is necessary that chemical treatment is done to neutralize yellow tint of textile fibers.","domain":"optical_engineering"}
{"url":"http://www.hasselblad.com/our-world/papa/","date":"2017-10-17T07:52:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187820930.11/warc/CC-MAIN-20171017072323-20171017092323-00864.warc.gz","language_score":0.9262927770614624,"token_count":162,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__217671778","lang":"en","text":"2016-16-02 Visit us at the Professional Aerial Photographers Association conference and get your hands on the Hasselblad A5D!\nToday’s aerial photography is more demanding than ever and Hasselblad continues to rise to the occasion, introducing more and more advanced products and applications for this exciting segment. This is especially true of the Hasselblad A5D, the latest evolution of Hasselblad aerial cameras designed for these special applications.\nThe new camera has been developed to deliver the image quality and reliability required by our surveying and mapping customers. Listening to their feedback we have developed a camera to encompass these needs and much more.\nMarch 10-12th, 2016\nSugar Land, (Houston) TX\nRead More about the A5D","domain":"optical_engineering"}
{"url":"https://www.camerastuffreview.com/en/sigma-lens-review/review-sigma-24-105-art","date":"2019-10-13T23:52:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986648343.8/warc/CC-MAIN-20191013221144-20191014004144-00004.warc.gz","language_score":0.9180472493171692,"token_count":2063,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__219613238","lang":"en","text":"Review Sigma 24-105 mm f/4 Art (C FF)\n|To the surprise of many, in October 2013 the Sigma 24-105 mm f/4 Art lens, suitable for an APS-C and a full-frame camera, was announced. We hadn't expected that. The 24-105 mm zoom is a popular zoom lens among Canon photographers, due to the broadly useful zoom range and because it's sold as a kit lens with various Canon full-frame SLR cameras. Some portrait photographers prefer a 24-105 mm zoom lens to a 24-70 mm, because that model at a focal length of 105 mm gives a bit more flattering portrayal if you make a full-screen portrait. At 24-105 mm, this is a bit more universal than a 24-70 mm zoom. It's possible that may have been a consideration for Sigma in bringing out this lens.|\nSigma 24-105 mm f/4 DG OS HSM Art @ Canon 5D MK3\n|On a camera with a full-frame sensor a 24-105 mm zoom lens is the universal walk around zoom, which can replace the popular fixed focal lengths of 24 mm, 28 mm, 35 mm, 50 mm and 85 mm. The Sigma 24-105 mm Art lens comes with a pouch and a flower-shaped lens hood.|\n|The Art series lenses are so solidly built that they withstand comparison with the best professional lenses. If you put the Canon 24-105 mm f/4 L next to the Sigma 24-105 mm, the Sigma looks more modern. You also notice that the Sigma lenses looks more professional, and is more heavily built. The lens is not affected by creeping (shifting of the zoom when the lens hangs vertically, which our Canon test model did suffer from) and both the zoom ring and the focus ring are much better padded. The Sigma is also heavier, larger and has a larger filter size than the Canon. |\nThe heavy brass mount fits perfectly and completely without play on the camera. It may seem exaggerated to pay attention to it, but with the high resolution of modern cameras the quality of the mount is also becoming increasingly important.\nThis lens is made with attention to detail. I find the \"in/out\" text on the supplied lens hood to be a funny detail, so that you know which direction you have to turn it to tighten or loosen the lens hood.\n|The lens is equipped with two switches: image stabilization on/off and auto focus/manual focus. These switches have a – hand-painted – white background, allowing you to better see the current setting of the switch. |\nThe HSM drive of the auto focus is fast and can be overruled manually at any time if you want to adjust the focus point.\nWe tested the image stabilization (OS) at a focal length of 105 mm. The image stabilization turned out to be not only very quiet, but also effective. The Imatest measurements showed that a picture taken by hand at a shutter speed of 1/200 was slightly less sharp than a picture made at a shutter speed of 1/25 second using the built-in image stabilization. Move your mouse over the image on the right. That's actually a profit of 3 stops, and that's very good.At shutter speeds slower than 1/25 the images are no longer razor-sharp. Even so, I could still get reasonably sharp pictures at a shutter speed of 1/3 second and a focal length of 105 mm. Below you'll see a 100% cut-out of the picture shown here. Without image stabilization, the result doesn't bear looking at.\nTip: Both with and without image stabilization, it's true that at the point where the sharpness begins to decline through motion blur, the variation in the sharpness is relatively large. If at slow shutter speeds, you make multiple pictures right after each other, then the chances are great that there will be a sharp picture among them.\n|Tip: Zowel met als zonder beeldstabilisatie geldt dat op het punt waar de scherpte begint af te nemen door bewegingsonscherpte, de variatie in de scherpte relatief groot is. Maak bij lange sluitertijdenmeerdere opnames vlak achter elkaar. De kans is groot dat er toch nog een scherpe opname tussen zit. |\n|The optical design consists of 19 elements in 14 groups, and includes several high-quality glass types, such as two elements of a glass type (FLD) with the same properties as fluorite, two SLD lenses and 3 aspherical lenses. |\nThe chart on the right shows the results from our Imatest measurements of in-camera jpg files. At multiple focal lengths, the corner sharpness is somewhat lower than the center sharpness. That's common for a good lens on a camera with a full frame sensor. At focal lengths of less than 85 mm, the resolution in the center never drops below 2500 lines per picture height. At the longest focal lengths, we measure relatively speaking the lowest resolution, but the center resolution remains above 200 lines per picture height. All very good, then.\n|Across the board, the Sigma 24-105 mm rated comparable to, just a little bit better than, the Canon 24-105 mm that we reviewed earlier. In our overview of results at individual focal lengths, you can compare the sharpness of the Sigma 24-105 mm with the Canon 24-105 mm. |\nTo give you an impression of the difference in sharpness between the Sigma 24-105 mm f/4 and the Canon 24-105 mm f/4, you see below a 100% cutout from a picture made at 105 mm f/4, with both lenses focused at precisely the same point. In the center, it's hard to see a clear difference in sharpness, but in the corners, it's clearly visible. Even so, in the vast majority of cases you won't see any difference in sharpness in practice.\n|We start from \"What you see is what you get\" and therefore use 1 scale to assess the vignetting of all lenses, regardless of the sensor size. Lenses tested on a camera with a full frame sensor have much more trouble with vignetting. This also applies to the Sigma 24-105 mm Art. At maximum aperture, the vignetting in the corners at multiple focal lengths is up to 2 stops. You will really need to correct vignetting. |\nAcross virtually the entire range, distortion is visible. At 24 mm the visible distortion is barrel-shaped. From 30 mm, the visible distortion is pincushion-shaped. Distortion is quite correctable with lens correction profiles in Photoshop or Lightroom. However, during the test these profiles were not yet available.\nBokeh Sigma 24-105 mm f/4 Art\nMany photographers who use a camera with a full frame sensor find me the bokeh important. The diaphragm of the Sigma 24-105 mm Art is composed of 9 rounded blades, which deliver a quiet background blur. With our bokeh test setup, the pictures made with the Canon 24-105 mm L gives a more restless bokeh than the Sigma 24-105 m f/4. The bokeh shows clear circles with the Canon; the Sigma, practically none.\nAlso in the pictures taken in practice the bokeh of the Sigma 24-105 mm is more beautiful. But, you get a nicer bokeh if you use a brighter lens.\nFrom the MTF charts that manufacturers place on their website, you can distill an indication of the quality of the bokeh. The smaller the difference between the horizontal and vertical resolution (sagittal and meridional MTF), the quieter the bokeh. On the Global Vision site of Sigma, there are various charts for Sigma 24-105 mm Art performance data for MTF, distortion and vignetting. If we compare that with the MTF charts for the Canon 24-105 mm, then you would be able to see a confirmation of our observation that the bokeh of the Sigma at 105 mm is a bit nicer.\n|Move your mouse over the image for a comparison of the Sigma 24-105 mm f/4 Art with the Canon EF 24-105 mm f/4 L |\nFlare Sigma 24-105 mm f/4 Art\n|Like the other recent lenses from Sigma, this lens is well protected against flare. Ghosts such as those found in the Lenstip review we didn't come across. Even if you are shooting straight into the sun, the flare zone is limited. It's just a very good result. |\nChromatic aberration Sigma 24-105 mm f/4 Art\nAt this point, we had hoped for more for a lens from the Art series, because most Sigma lenses have a design in which you encounter very little chromatic aberration. There are also several glass elements of high-quality glass types applied, which have little CA or correct for CA. In the RAW pictures we found – at large magnifications – visible lateral chromatic aberration in the form of purple and green edges at sharp contrast transitions in the corners of the image, also in practice pictures of branches against a gray sky. Fortunately, chromatic aberration in RAW files is also easy to correct with software.\nIn the jpg files, the lateral chromatic aberration was considerably better corrected. In our measurement results, we saw a kind of dip, where the CA in the corners was higher for both large and small apertures. The CA was always low; at f/5.6, the CA was the lowest.\nConclusion Sigma 24-105 mm f/4 Art review\nUse the Lens Comparison or look in our list of reviewed lenses to compare this lens with other lenses.","domain":"optical_engineering"}
{"url":"https://mnemovision.co.il/projects/10-what-we-are-proposed","date":"2022-07-02T13:58:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104141372.60/warc/CC-MAIN-20220702131941-20220702161941-00680.warc.gz","language_score":0.9310057759284973,"token_count":646,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__14528479","lang":"en","text":"It is well known that the eye’s lens focuses by changing shape. When muscles in the eye relax, the lens is pulled flat to focus on distant objects.\nIt is well known that the eye’s lens focuses by changing shape. When muscles in the eye relax, the lens is pulled flat to focus on distant objects. When they contract, the lens returns to a fatter shape, bringing closer objects into focus. These principles were used in design our autofocusing eyeglasses with variable optical power.\nOur idea is to use elastic lens, which is similar to eye’s lens can change its optical power according to the viewing distance. One of the proposed technical solutions is based on the patented design of liquid-filled variable lenses. The distinctive feature of our variable eyeglasses is in the using of native human reflex for optical power control of the liquid filled elastic lenses.\n( J. Bekerman , A. Bekkerman “Apparatus and method for eyesight rehabilitation”. Patent Application. PCT/IL 2003/000721, WO2004/023167 A2. ) On the Fig. 4an isometric view of multifocal autofocusing eyeglasses is shown. Multifocal eyeglasses comprise a spectacle-like rim 1 for wearing the spectacles on a user’s nose and two liquid lenses 2. The transparent optical liquid is confined between two elastic membranes that are held at their circumference in a corresponding recess in the rim 1. The variable lens is essentially the closed hydrostatic system, that comprising two connected reservoirs one of which is the elastic lens 2 and the second one an optical liquid container.\n3. How it is working ? We used the gravitation force as the means of pushing the liquid from container into the lens cavity. Since the membranes are made from an elastic material, the curvature of the lens is adjustable and determined by the pressure of the liquid confined between the membranes. When the pressure of the liquid is greater, the curvature of the liquid lens is higher. The variation of the membranes curvature in fact leads to variation the optical power of the lens. When the person is shift one gaze from far objects to close ones the eyeglasses automatically change its optical power. The human brain estimates the sharpness of the picture focused on the retina and gives the command for head muscles to choose an optimal position. At the same time, the eye muscles also try to take an optimal condition for the better vision. One of the most important advantages of liquid filled lenses is their wide field of view in comparison with progressive multifocal lenses. It makes possible non-strained and non-distorted side vision in the reading condition. Actually, this is the new technology of the cooperative interaction of adaptive optics and biological system of human eyes. This technology provides comfortable (non-strain) seeing of objects at any distances. Relaxed vision gives the feeling of native (as if youthful) sight. Such non-strained state of eyes gives also good motivation for activation of all physiological processes in the biological system of vision. As the result person gradually gains the experience of normal visual work of eyes.","domain":"optical_engineering"}
{"url":"http://clubambasada.pl/zener-diode-list-pdf/","date":"2018-08-18T10:54:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213540.33/warc/CC-MAIN-20180818095337-20180818115337-00379.warc.gz","language_score":0.9624664783477783,"token_count":979,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__202476238","lang":"en","text":"Please forward this error screen to zener diode list pdf. Parts of a conventional LED.\nThe flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being forcefully pulled out via mechanical strain or vibration. Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light. Infrared LEDs are still frequently used as transmitting elements in remote-control circuits, such as those in remote controls for a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Early LEDs were often used as indicator lamps for electronic devices, replacing small incandescent bulbs. Recent developments have produced LEDs suitable for environmental and task lighting. LEDs have led to new displays and sensors, while their high switching rates are useful in advanced communications technology.\nLEDs have many advantages over incandescent light sources, including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. They are also significantly more energy efficient and, arguably, have fewer environmental concerns linked to their disposal. LED is neither coherent nor monochromatic, but the spectrum is narrow with respect to human vision, and for most purposes the light from a simple diode element can be regarded as functionally monochromatic. His research was distributed in Soviet, German and British scientific journals, but no practical use was made of the discovery for several decades. In 1957, Braunstein further demonstrated that the rudimentary devices could be used for non-radio communication across a short distance. The emitted light was detected by a PbS diode some distance away.\nThis signal was fed into an audio amplifier and played back by a loudspeaker. Intercepting the beam stopped the music. We had a great deal of fun playing with this setup. This setup presaged the use of LEDs for optical communication applications. In October 1963, TI announced the first commercial hemispherical LED, the SNX-110.\nHolonyak, invented the first yellow LED and improved the brightness of red and red-orange LEDs by a factor of ten in 1972. Pearsall created the first high-brightness, high-efficiency LEDs for optical fiber telecommunications by inventing new semiconductor materials specifically adapted to optical fiber transmission wavelengths. 200 per unit, and so had little practical use. 1968 to produce red LEDs suitable for indicators.\nThese red LEDs were bright enough only for use as indicators, as the light output was not enough to illuminate an area. Readouts in calculators were so small that plastic lenses were built over each digit to make them legible. Later, other colors became widely available and appeared in appliances and equipment. In the 1970s commercially successful LED devices at less than five cents each were produced by Fairchild Optoelectronics. The combination of planar processing for chip fabrication and innovative packaging methods enabled the team at Fairchild led by optoelectronics pioneer Thomas Brandt to achieve the needed cost reductions.\nLED producers continue to use these methods. However, neither of these initial blue LEDs were very bright. As of 2017, some manufacturers are using SiC as the substrate for LED production, but sapphire is more common. The combination of that yellow with remaining blue light appears white to the eye. The first white LEDs were expensive and inefficient.\nLight output and efficiency of blue and near-ultraviolet LEDs rose as the cost of reliable devices fell. This led to relatively high-power white-light LEDs for illumination, which are replacing incandescent and fluorescent lighting. A P-N junction can convert absorbed light energy into a proportional electric current. The charge carriers recombine in a forward-biased P-N junction as the electrons cross from the N-region and recombine with the holes existing in the P-region. Thus the energy level of the holes is less than the energy levels of the electrons. Some portion of the energy must be dissipated to recombine the electrons and the holes. This energy is emitted in the form of heat and light.\nIf the semiconductor is translucent, the junction becomes the source of light as it is emitted, thus becoming a light-emitting diode. However, when the junction is reverse biased, the LED produces no light and—if the potential is great enough, the device is damaged. An LED begins to emit light when more than 2 or 3 volts is applied. The reverse bias region uses a different vertical scale from the forward bias region to show that the leakage current is nearly constant with voltage until breakdown occurs. In forward bias, the current is small but increases exponentially with voltage. LEDs are usually built on an n-type substrate, with an electrode attached to the p-type layer deposited on its surface. P-type substrates, while less common, occur as well.","domain":"optical_engineering"}
{"url":"http://imd.kpi.ua/departments-category/technological-and-analytical-research/","date":"2018-05-24T22:54:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866894.26/warc/CC-MAIN-20180524224941-20180525004941-00283.warc.gz","language_score":0.7924929261207581,"token_count":517,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__21123099","lang":"en","text":"The main areas of Department research are:\n1. The development, testing and implementation of technological processes for creation of micro- and nano(opto)electronic devices. Devices and test structures prototyping. Semiconductor devices packaging..\n2. The comprehensive study of electrical parameters of semiconductor structures (MIS systems in particularly), localization and study of electrically active defects (EAD)..\n3. The analysis of the technological structures and devices radiation resistance.\n4. The complex development of analytical integrated and local research methods for MIS structures electrical parameters determination. More over we are developing a complex methods for analyzing and detection the local properties of EAD in various types of technological structures.\n5. Certification processes.\n6. Performing technological work on wide range of materials deposition including:\n– Metals (Al, Ga, Cu, Ti, Ni, Mo, In, Zn, Ag, Hg, Au, Bi, Pb, Fe);\n– Semiconductors (AlN, GaN, InN, SiN, SiC, TiN, MgN, BN, SiTe, MoSi2, poly-Si);\n– Insulators (SiO2, Al2O3, TiO2, Si3N4).\nThese materials and their compounds, could be deposited on the different types of surfaces (including flexible substrates).\nThe available at IMD equipment enables to perform research and manufacture operations in different areas:\n– biomedicine, implantology;\n– micro- & nano(opto)electronics;\nResearch group of Prof. OSINSKY\nQualitatively new developments, patented in Ukraine:\n• LED chips & heterolasers integration technology based on АЗВ5 heterostructures in combination with CMOS Si integrated circuits;\n• epitaxial technology for achieving multilayer LED nanostructures;\n• technology for effective radiation output from heterostructures;\n• the design of the optical system for radiation output from the chip and direction diagram formation;\n• the technology of heat-removing from the LEDs matrixes;\n• the LED matrixes control method with minimizing the number of switching elements;\n• structure and technology of ohmic contacts for LEDs;\n• laser-computer technology to improve the LED chips parameters;\n• the active layers materials with quantum dots;\n• the technology for creation a stable multi-phase solid solutions to form the LEDs & heterolasers emitting regions.","domain":"optical_engineering"}
{"url":"https://calbayog-ev.all.biz/attenuators-bgg1038636","date":"2017-12-16T20:44:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948589177.70/warc/CC-MAIN-20171216201436-20171216223436-00763.warc.gz","language_score":0.871710479259491,"token_count":112,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__16370517","lang":"en","text":"Attenuators in Calbayog\nFound: 1 products← Back to category \"Testers: power, voltage\"\nDMSI offers a full line of fiber optic attenuators for use with all applications. Our attenuators can be installed easily and are constructed of the highest quality materials. Each of our fiber optic attenuators are individually tested and are offered in a wide variety of connector styles and polis Read more\nDidn't find required product?\nSuppliers will contact you\nAttenuators in other regions","domain":"optical_engineering"}
{"url":"https://isemetal.com/services/laser-cutting/","date":"2024-04-20T10:16:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00674.warc.gz","language_score":0.9315361976623535,"token_count":160,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__19874680","lang":"en","text":"ISE is equipped with 17 lasers over 3 locations with the capacity to cut parts up to 240” long and a thickness of 1”.\nWe invest in the latest cutting technology to offer our clients the most competitive pricing and quote within 24 hours. Contact us for a quote today.\nOur estimating team is eager to respond to requests for quotes accurately and in a short time.\nFlying Optics – Flying Optics lasers feature a stationary table and a cutting head (with a laser beam) that moves over the work piece in both of the horizontal dimensions. Flying Optics cutters keep the workpiece stationary during processing, and often don’t require material clamping.\nISE has the flexibility among 3 Laser operations to serve a wide variety of industries in North America.","domain":"optical_engineering"}
{"url":"http://www.shop.minutemanpress.com/news/california/gardena/celestron-announces-new-products-for-2014-49741.html","date":"2017-04-30T22:40:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917125881.93/warc/CC-MAIN-20170423031205-00125-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9602323174476624,"token_count":368,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__222535186","lang":"en","text":"Celestron announces new products for 2014\nJanuary 16, 2014 by Sarah\nCelestron, the leading maker of telescopes in the world and located in Torrance just outside of Gardena, recently announced its new product lineup for 2014. Most likely the company is turning to a variety of printing services to help with the announcement of these new products.\nIn 2013, Celestron introduced five series of binoculars and other scopes for the sport optics market and this year has added a new line of large aperture binoculars. This has become the Echelon line with three rugged models with magnifications of 10x, 16x and 20x that feature fully multi-coated optics, 70 mm objective lenses and BaK-4 prisms. The binoculars have an aluminum housing armored with rubber that is needed for sports optics for durability and enhancing ergonomics. For 2014, Celestron has added three new large aperture models to the Nature DX binoculars that have magnifications of 8x, 10x and 12x.\nFor 2014, Celestron is also expanding its line of astronomical accessories. They have developed two spotting scope eyepieces, one of which is a wide-angle model and the other a long relief model that also feature fully multi-coated optics and waterproof housings.\nAnother new astronomical accessory is the TrailSeeker tripod which is made of lightweight aluminum and can be used for spotting scopes. It has multiple leg angles, quick release plate and a two-way fluid head so that it can be used in a variety of terrains.\nAdding to its line of digital microscopes, Celestron has created the MicroFi which includes Wi-Fi integration so that live streaming video can be fed to up to three tablets or smartphones up to 30 feet in distance.","domain":"optical_engineering"}
{"url":"https://www.bychips.kr/news/TI-unveils-DLP-0.66-inch-4K-ultra-high-definition(UHD)-chip,enabling-more-affordable-large-screen-pr.html","date":"2024-04-13T00:18:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816465.91/warc/CC-MAIN-20240412225756-20240413015756-00509.warc.gz","language_score":0.878508448600769,"token_count":1165,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__29481651","lang":"en","text":"Texas Instruments (TI) (NASDAQ: TXN) today announced its 0.66-inch 4K UHD chip for home theater, business and education projection displays. Based on proven DLP Cinema® technology, the imaging choice for more than eight of 10 digital theatre screens worldwide, the DLP 4K UHD chipset combines the fast switching speed of the digital micromirror device (DMD) with advanced image processing. This latest DLP Products offering in a single-chip projector architecture enables high resolution and high brightness solutions at a price point that allows manufacturers to expand 4K UHD projection displays to a broad audience. For more information, visit www.ti.com/DLP4KUHD.\nThe DLP 0.67-inch 4K UHD chip for home theater, business and education projection displays.\nThe DLP 4K UHD solution uses the fast speed of the chip with advanced image processing to deliver more than 8 million pixels to the screen with just 4 million mirrors. Each mirror is capable of switching over 9,000 times per second, creating two distinct and unique pixels on the screen during every frame to deliver full 4K UHD resolution.\nKey features and benefits of the DLP 4K UHD solution\nHigh performance 4K UHD imager: The fast switching speed of the DMD enables each mirror to display two distinct and unique pixels on the screen during every frame, reducing blur and delivering full resolution. The inherent one-chip DLP system alignment enables the color integrity of the content to be maintained without blurriness between colors.\nAffordable 4K UHD: With a small, 0.66-inch DMD that is similar in size to the DLP 0.65-inch 1080p chip, customers can have access to more affordable 4K UHD solutions in settings ranging from the home theater to the boardroom to the classroom.\nPowerful ANSI contrast: DLP technology’s high ANSI contrast brings out the fine details in 4K UHD content to offer a stunning viewing experience.\nAdvanced image processing: DLP Products’ proprietary algorithms deliver sharp, high quality images with crisp and clear fine lines and details.\nA flexible solution: The DLP chip can be used with multiple light sources including lamps, LEDs, and laser phosphor, giving manufacturers the flexibility to create a unique solution for a variety of applications.\n\"4K UHD comes to life when all of the details in the content are accurately displayed,\" said Dave Duncan, DLP Products business manager, Texas Instruments. \"By giving customers the ability to incorporate a 4K UHD display chip that’s roughly the same size as our 1080p chip, this new solution from TI DLP Products can be a game changer for the industry.\"\n\"TI’s versatile 4K UHD chipset gives us the capability of developing high quality 4K UHD products for a variety of applications. With this product, more people will be able to enjoy 4K UHD projection systems,\" said Robert Sterzing, president, Optoma Technology.\nThe DLP 4K UHD chip solution will be available in spring 2016. For more information, or to sign up for notification when the chip becomes available, visit www.ti.com/DLP4KUHD.\nFind out more\nVisit the overview page to learn more about the features and benefits of the DLP 4K UHD solution.\nWatch a video on the DLP 4K UHD solution.\nAbout Texas Instruments DLP Products\nSince 1996, award-winning TI DLP technology has powered the world’s top display devices to deliver high-resolution images rich with color, contrast, clarity and brightness for a wide range of applications, including industrial, automotive, medical and consumer market segments. DLP technology is being used in movie theatres (DLP Cinema® products) and large-scale, professional venues and conference rooms, classrooms and home theaters. With mobile devices enabled by DLP® Pico™ technology, users have the ability to display images from the palm of their hand. Every DLP chipset features an array of microscopic mirrors that switch on and off up to 10,000 times per second. To learn more, please visit www.ti.com/dlp or follow TI DLP technology on Twitter at @TI_DLP.\nAbout Texas Instruments\nTexas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog integrated circuits (ICs) and embedded processors. By employing the world’s brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today. Learn more at www.ti.com.\nDLP and DLP Cinema are registered trademarks. All registered trademarks and other trademarks belong to their respective owners.\nWith a small, 0.67-inch digital micromirror device (DMD) that is similar in size to the DLP 0.65-inch 1080p chip, customers can have access to more affordable 4K UHD solutions in settings ranging from the home theater to the boardroom to the classroom.\nDLP technology combines speed and performance for accurate, razor sharp, 4K UHD projection displays.\nSOURCE Texas Instruments","domain":"optical_engineering"}
{"url":"https://millenial.fi/picoway-785nm-handpiece-removes-green-blue-and-purple-tattoo-ink/","date":"2024-04-13T10:29:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816587.89/warc/CC-MAIN-20240413083102-20240413113102-00473.warc.gz","language_score":0.9121394157409668,"token_count":212,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__34446283","lang":"en","text":"Green, blue, and purple tattoo pigments are often the colors most resistant to laser removal. Recently, the first ever picosecond laser with a 785 nm wavelength was developed by Syneron Candela to improve the rate of clearance of green, blue, and purple tattoo inks. This is available for Picoway, the world’s most effective, and most safe laser system for tattoo removal with minimal to no recovery time.\nPlease see an article on the PicoWay 785nm handpiece written by Dr. Bernstein & co:\nIn this first study of the new 785 nm picosecond laser, results demonstrate safe and effective removal of multicolor tattoos. Although clearance was shown for a multitude of colors including black, the 785 nm laser wavelength has a special affinity to purple, blue and green tattoo pigments.\nPublication details: Lasers Surg. Med. 9999:1–7, 2018. © 2018 The Authors. Lasers in Surgery and Medicine Published by Wiley Periodicals, Inc.","domain":"optical_engineering"}
{"url":"https://www.idlights.com/trap-light-garden-floor-lamp/","date":"2024-02-21T16:11:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473518.6/warc/CC-MAIN-20240221134259-20240221164259-00612.warc.gz","language_score":0.9370115399360657,"token_count":236,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__35567923","lang":"en","text":"Trap Light floor lamp is the result of an exciting collaboration between Gionata Gatto and Mike Thompson, proposing a radical new approach to lighting design. By utilising photoluminescent pigments to capture escaping light, Trap Light converts waste energy back into visible light.\nPhotoluminesence is a process in which energy absorbed by a substance is gradually released as light. Using the Murano glass blowing technique, the designers were able to embed photoluminescent pigments into the glass body of the lamp. Through this process, Trap Light becomes both shade and light source, emitting, absorbing, and re-emitting light. 30 minutes ‘charge’ of recycled light from a traditional incandescent or LED light bulb provides up to 8 hours of ambient lighting.\nOther project: Blood Lamp… bit different\nFor the lamp to work one breaks the top off, dissolves the powder, and uses their own blood to power a simple light. By creating a lamp that can only be used once, the user must consider when light is needed the most, forcing them to rethink how wasteful they are with energy, and how precious it is.","domain":"optical_engineering"}
{"url":"http://www.bankrate.com/finance/auto/car-safety-features-drive-winter-5.aspx","date":"2017-02-22T08:38:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170925.44/warc/CC-MAIN-20170219104610-00595-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9560281038284302,"token_count":150,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__11794392","lang":"en","text":"6 car safety features to drive in winter\nAdaptive headlights can help drivers see better on dark, curved roads. And while they aren't as common on today's vehicles as other technologies, Lachnit says they could provide great assistance in the fog or rain.\nFor example, BMW's adaptive headlight system works by using sensors to measure speed and the steering angle. Based on information sent from the sensors, small electric motors adjust the headlights so they fall directly on the road ahead.\nThis car safety feature was found to be even more effective in preventing crashes than Highway Loss Data Institute researchers expected. They analyzed adaptive headlights offered by Acura, Mazda, Mercedes and Volvo, and found that property damage claims fell by as much as 10 percent.","domain":"optical_engineering"}
{"url":"https://www.avo.alaska.edu/webcam/Augustine_-_low_light.php","date":"2019-07-19T01:24:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525973.56/warc/CC-MAIN-20190719012046-20190719034046-00342.warc.gz","language_score":0.930544376373291,"token_count":107,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__32805344","lang":"en","text":"This low-light camera is co-located with the daylight camera in Homer. It is extremely sensitive to light and has a range that extends to the Near Infrared (NIR). The image from this camera will often be light-saturated during daylight hours and will display only as a white featureless screen.\nApproximate sunrise/sunset times at the Augustine - low light webcam:\nThursday July, 18, 2019:\nSunrise: 05:27 AKDT\nSunset: 22:57 AKDT","domain":"optical_engineering"}
{"url":"https://securitymiddleeast.com/hikvisions-world-first-1080p-ultra-low-light-ptz-intersec/","date":"2021-06-20T21:38:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488257796.77/warc/CC-MAIN-20210620205203-20210620235203-00340.warc.gz","language_score":0.899979293346405,"token_count":850,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__181953248","lang":"en","text":"Hikvision is expanding the DarkFighter range of ultra-low-light surveillance cameras with the release of the DS-2DF8223I-AEL PTZ network camera. This cutting-edge camera utilizes Hikvision’s industry-leading, ultra-low-light MP lens and is designed specifically to capture sharp color and monochrome images in extreme, low-light conditions. The result is crystal-clear color images in conditions that would defeat conventional monochrome IP cameras and competing low-light cameras.\nThe DS-2DF8223I-AEL DarkFighter PTZ opens up new opportunities for 24-hour CCTV surveillance and is the ideal replacement for conventional IP network cameras. The incorporation of EIS (Electronic Image Stabilization), 120dB WDR and a plethora of Smart Detection technologies further improves image quality and operational convenience. The overall excellence of the camera has been recognised by the ISFEC Security & Fire Excellence Awards which has nominated the new DarkFighter PTZ as a finalist for “CCTV Camera Equipment of the Year”.\nAward – winning low-light specifications\nThe DarkFighter camera features a large, two-megapixel, 1/1.9 inch progressive scan CMOS image sensor capable of capturing full color images down to 0.002 Lux and B/W to 0.0002 Lux. Together with a 120 dB WDR (wide dynamic range) and Hikvision’s 3D DNR (Digital Noise Reduction) technology, the camera is capable of streaming full HD 1920 x 1080 video at 30fps. IR distance of up to 200 metres is further supported to ensure image capturing in darkest environment.\nThe camera features a wide range of Smart detection features, including face detection, intrusion detection, line crossing detection and audio exception. These features, combined with smart tracking, which enables the camera to detect any progressively moving object and follow it within the camera’s area of coverage without fault, place the DarkFighter head and shoulders above other PTZ and IP cameras. Smart Defog and EIS (Electronic Image Stabilization) are further supported to improve image quality in challenging conditions.\nHigh power optics\nDarkFighter PTZ is fitted with a fast and powerful 23X optical zoom lens, which zooms from wide open to fully zoomed in less than five seconds. This high-power lens is capable of rotating endlessly through a full 360 degrees and tilting from -20 to 90 degrees and its ultra-low-light performance is augmented with infra-red capability over a range of 200 meters. In addition, up to 300 preset positions may be programmed and the new camera is also capable of combining up to 32 presets in up to 8 patrols. The DarkFighter PTZ will also scan up to 4 patterns and supports up to 24 ROI areas.\nMultiple compression formats\nMPEG4, MJPEG and H.264 video compression formats are supported and the camera features multiple H.264 compression profiles, allowing users to optimize bandwidth and storage without compromising image quality. With support for ONVIF, PSIA, and CGI standards, the new camera also offers quick and easy integration with other video surveillance equipment and systems.\nThe DS-2DF8223I-AEL DarkFighter PTZ is the latest member of the growing DarkFighter family of ultra-low-light CCTV cameras. It is fully protected by an integrated heater in the sturdy IP66 and vandal-proof housing, making it the perfect candidate for deployment in challenging outdoor environments both day and night down to temperatures as low as -40°C. High-PoE and 24VAC power supply are supported as well.\nIn addition, Hikvision also introduces another DarkFighter PTZ member — DS-2DF6223-AEL 2MP Smart PTZ Outdoor Network Camera for customer’s choice. This camera doesn’t feature IR capability, but shares all the other excellent functionalities of the DS-2DF8223I-AEL. For more information on the two products’ specification, please visit Hikvision at Intersec at stand SA-C11.","domain":"optical_engineering"}
{"url":"https://toyomaldives.com/product/led-water-descent-control-box/","date":"2024-02-27T20:47:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00723.warc.gz","language_score":0.8844929337501526,"token_count":131,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__44890047","lang":"en","text":"The LED strip is built into the unit (instead of using fiber optics) placing the light as close to the water fall as possible. This design creates a wonderful illumination to the water falling into the pool. 10 selections of pre-programmed LED lighting pattern allow you to create the best luminous water features on your hands.\nFive different models available for different water effects:\n- PB Series: Sheet of water with standard trajectory\n- PBA Series: Sheet of water with arc trajectory\n- PBS Series: Sheet of water with sheer trajectory\n- RA Series: Rain fall effect with arc trajectory\n- RS Series: Rain fall effect with sheer trajectory","domain":"optical_engineering"}
{"url":"https://www.uttamcomputer.com/dpn-124g-d-link-optical-network-unit.html","date":"2023-12-05T11:45:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00750.warc.gz","language_score":0.7808135151863098,"token_count":185,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__281128062","lang":"en","text":"We are a leading Wholesale Trader of dpn-124g d-link optical network unit from Patna, India.\nDPN-124G D-Link Optical Network Unit\nGet Best Quote\n✓Thanks for Contacting Us.\nApprox. Rs 1,700 / unitGet Latest Price\nProduct BrochureProduct Details:\nDPN-124G provides an optical line connection to a GPON OLT device. The key advantage of GPON technology is extraordinary bandwidth of the channel. This helps to deliver the next generation of high-speed Internet services to home and office users. DPN-124G helps to provide a reliable, long-reaching last-mile connection by extending the high-bandwidth public network to people living and working in remote multi-unit buildings.\nYes! I am Interested\nLooking for DPN-124G D-Link Optical Network Unit ?","domain":"optical_engineering"}
{"url":"https://arte-beaute.com/starwalker/","date":"2022-12-09T15:17:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711417.46/warc/CC-MAIN-20221209144722-20221209174722-00174.warc.gz","language_score":0.8583472967147827,"token_count":365,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__27393247","lang":"en","text":"High-performance Q-Switched laser system\nsafe and efficient, fast and convenient\nStarWalker® and its visionary ISA (Adaptive Structured Pulse) technology mark a titanic breakthrough in the field of medical and aesthetic lasers.\nThis third-generation technology combines the unbeatable range of duration modes of Fotona’s ICV (Variable Square Pulse) technology with the revolutionary ability of ISA technology to adapt the temporal structure of laser pulses to the biophotonic dynamics of laser-tissue interaction.\nSafe and efficient, fast and convenient\nImproves skin texture and tone\nBy combining four complimentary wavelengths and 14 laser modes, the StarWalker acts as a highly versatile multi-functional system for a wide range of aesthetic applications. The StarWalker’s energy, four colors, and exclusive FracTAT™ procedure also make the StarWalker, an industry-leading tattoo removal laser system. By combining four complimentary wavelengths and 14 laser modes, the StarWalker acts as a highly versatile multi-functional system for a wide range of aesthetic applications.\nPico laser power with Q-Switched laser energy\nStarWalker’s unique oscillating DMT (transverse mode discrimination) laser technology combines with ISA pulse control to emit very short Q-switched pulses (5 nano sec) that consist of a sequence of very short energy explosions in trillionths of a second, causing the photomechanical impact to burst tiny skin targets without damaging the surrounding skin. StarWalker’s technology thus combines the high energy capabilities of nanosecond lasers with the peak powers of the very short pulses of traditional picosecond lasers.","domain":"optical_engineering"}
{"url":"https://www.indiebound.org/book/9783527411528","date":"2019-05-24T20:05:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257731.70/warc/CC-MAIN-20190524184553-20190524210553-00545.warc.gz","language_score":0.8990979790687561,"token_count":311,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__44449021","lang":"en","text":"Fringe Pattern Analysis for Optical Metrology (Hardcover)\nTheory, Algorithms, and Applications\nWiley-Vch, 9783527411528, 344pp.\nPublication Date: August 18, 2014\nList Price: 181.00*\n* Individual store prices may vary.\nAbout the Author\nManuel Servin received his engineering diploma from the ?cole Nationale Sup?rieure des T?l?communications in France (1982), and his Ph.D. from the Centro de Investigaciones en ?ptica A. C. (CIO) at Leon Mexico in 1994. He is co-author of the book `Interferogram Analysis for Optical Testing?. Dr. Servin has published more than 100 papers in scientific peer-reviewed journals on Digital Interferometry and Fringe Analysis. Juan Antonio Quiroga received his Ph.D. in physics in 1994 from the Universidad Complutense de Madrid, Spain. He is now teaching there at the Physics Faculty. His current principal areas of interest are Digital image processing applied to Optical Metrology and applied optics Moises Padilla is a Ph.D. student in optical sciences at the Centro de Investigaciones en ?ptica (CIO) at Le?n Mexico. He is associated with the optical metrology division of the CIO. His research activities are in digital signal processing and electrical communication engineering applied to processing and analysis of optical interferogram images.\nNot Currently Available for Direct Purchase","domain":"optical_engineering"}
{"url":"http://www.mlpc.com/news/2/104/Laser-Myth-Busting","date":"2016-02-11T02:11:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701160950.71/warc/CC-MAIN-20160205193920-00023-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.8747387528419495,"token_count":309,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__159893517","lang":"en","text":"TRUE: In this video, we highlight the difference between using a nanosecond and femtosecond (ultrafast) pulse duration laser. When using the ultrafast laser, there is no heat input into the popcorn due to the 350 femtosecond pulse duration. This ultrafast pulse translates photon energy to the material’s electrons before there is time for this energy to be translated from the electrons to the lattice. This phenomenon is often referred to as athermal laser processing, and allows the Laser Applications Engineer to control the heat input parameter and not pop the popcorn. When using a nanosecond pulse duration laser, the heat input is higher and less controlled than an ultrafast laser system. With this laser, the heat input was sufficient to pop the popcorn.\nThe videos show the difference between two types of laser systems within Mound Laser’s micromachining department. The ultrafast femtosecond or picosecond laser systems are best suited for applications where material is sensitive to heat input such as bioabsorable material, polymers, nitinol and precious metals. These systems are capable of producing features down to 5 microns. Typical applications include stents, biofilters, or micro implants. The nanosecond pulse duration laser system is best suited for applications that require extensive amounts of precise material removal and have more tolerance for heat input. Mound Laser has 21 laser systems, and our Laser Applications Engineers will assist with selecting the right system for each customers’ applications.","domain":"optical_engineering"}
{"url":"https://covalentmetrology.com/techniques/near-infrared-imaging-nir/","date":"2023-03-28T12:42:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948858.7/warc/CC-MAIN-20230328104523-20230328134523-00076.warc.gz","language_score":0.8968484401702881,"token_count":676,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__112394367","lang":"en","text":"Attenuated Total Reflectance (ATR)$99 Base price View My Quote Request\nNear-infrared Imaging (NIR)\nNear-infrared imaging (NIR) is a nondestructive, noninvasive, and highly efficient method for localizing certain defects in photovoltaics and solar cells via electroluminescence. The technique is also a viable means of localizing defects in NIR fiber optic systems and lasers as well as monitoring high-temperature systems. NIR is currently seeing a growing field of application in pharmaceutical and polymers applications.\n- Rapid assessment of solar systems\n- Defect detection in NIR lasers and fiber optics\n- Imaging through optically opaque but NIR transparent materials\n- Well-suited for characterizing high-temperature systems\n- Low temperature systems (which are better suited for infrared thermographic imaging (IRT))\n- Microscopic inspection\nPhotograph (top) and NIR image (bottom) of a historic painting by Hans Memling (titled “Triptych of Jan Crabbe”) that portrayed John the Baptist and a monk. Near infrared light scatters from submerged paint layers and shows areas where the artist attempted several approaches – varying the right hand of John the Baptist and adjusting the position of the monk’s head.\n- Best suited for sample areas >1cm2 in size, smaller samples should be assessed independently.\n- Samples requiring fine probing are not well suited for this analysis – to see if your sample would be a good fit, please contact us\nNear-infrared imaging works similarly to a standard optical camera/imaging sensor, but utilizes a unique solid state Peltier-cooled detector designed to detect light in the 900-1700nm wavelength range (just outside of the visible spectrum). Interestingly, most digital photography cameras today are actually able to detect NIR light and require specialized filters to ensure that only visible light is captured.\nAs brightness is perceived by standard optical cameras, NIR cameras too correlate the intensity of photon signals across a target wavelength range and interpolate this information for each pixel in an array covering the subject field of view.\nBecause NIR radiation is scattered and absorbed differently than visible light, NIR images can sometimes be clearer and more detailed than conventional photographs, capturing subjects obscured by overlayers of IR-transmissive materials.\nWhen imaging high-temperature systems, NIR systems detect shorter wavelength than infrared thermographic imaging (IRT), and therefore can see regions with temperatures beyond what is perceptible to the IR system. Electromagnetic radiation is emitted by all objects with a temperature above absolute zero (-273.15 °C); objects with higher temperatures produce more radiation with shorter peak emission wavelengths. At very high temperatures, the wavelengths in a system become too narrow for conventional IR thermography, requiring NIR for characterization.\nEmission Microscopy (EMMI)\nEmission Microscopy (EMMI) is a non-invasive and non-destructive optical analysis technique used to localize photon emissions from fault...\nInfrared Thermography (IRT)\nInfrared thermography can be used to measure the heat distribution in integrated circuits (die) and printed circuit boards,...","domain":"optical_engineering"}
{"url":"https://ellipzsmartsolutions.com/lifi-technology/","date":"2021-08-06T03:02:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046152112.54/warc/CC-MAIN-20210806020121-20210806050121-00595.warc.gz","language_score":0.9288044571876526,"token_count":135,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__239569983","lang":"en","text":"What is LiFi?\nLiFi is a high-speed, bidirectional and fully networked light communication solution. LiFi technology uses light instead of radio waves to transfer data, embedding the information in beams of light. Our LiFi-enabled devices convert these beams into an electrical signal, which are then converted back into data.\nWe provide LED lighting solutions with the required LiFi hardware and software components installed. Customers simply plug a LiFi dongle into their laptop which automatically connects via the light beam to the nearest LiFi LED light. The device can now receive and transfer data up to 100x faster than WiFi – and with 100% security.","domain":"optical_engineering"}
{"url":"https://joinup.ec.europa.eu/collection/ehealth/document/pythia-pythia","date":"2022-12-07T11:45:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711151.22/warc/CC-MAIN-20221207085208-20221207115208-00098.warc.gz","language_score":0.8869444131851196,"token_count":1767,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__71198804","lang":"en","text":"* Monolithically integrated interferometric biochiPs for label-free earlY deTection of Human dIseAses\nPYTHIA project aims at the development of an innovative optoelectronic biochip for the early diagnosis of human diseases through label-free multi-analyte detection. These biochips are envisioned to \"prophesise\" potential predisposition to, or diagnose the early onset of human diseases, paving the way for advances in personalised health care. The principle of operation of the PYTHIA biochip is based on Broad-Band Mach-Zehnder Interferometry which improves the sensing capabilities over other main stream optical detection schemes. The PYTHIA biochip is built around an optoelectronic transducer consisting of a VIS-NIR light source and an interferometric waveguide all monolithically integrated on a single Si chip. The integration of all passive and active optical components on the same Si chip achieves the highest miniaturization level and overcomes the limitations of all optical transducers developed so far. Its breakthrough design makes use of conventional microchip technologies while circumventing common manufacturability issues. The final goal of the biochip is to enable the medical community to simultaneously diagnose a variety of diseases.\nThe transducer's ultimate integration level allows for the development of arrays consisting of individually functionalized interferometers coupled to their excitation source, and converging to a common detector for multiplexed operation. Encapsulation at wafer scale with a microfluidic system allows for the easy delivery of samples, while boarding on a disposable cartridge ensures the facile contact with the measuring apparatus.\nThe final system will be capable of simultaneous multi-analyte detection, real-time reaction monitoring and data processing, requiring minimal sample volumes and a few minutes of operation.\nThe system is completed by a user-friendly software for ease-of-use that does not require the presence of highly trained personnel and can be applied in any size diagnostic centre or even a privately owned practice. The final system will have the ability to be tailored to diverse diagnostic applications and patient or population genetic profiles.\nThe great potential and analytical breakthroughs of the proposed biochip will be demonstrated through its use in:\n- Prostate cancer, a frequently occurring disease severely burdening health care systems.\n- MEN2, a medical condition, linked to an inherited faulty gene (RET), demonstrating the ability of the biochip for efficient predisposition screening of population-specific genetic profiles.\n- Retinitis Pigmentosa (inherited diseases group causing retinal degeneration and vision loss) demonstrating substantial downgrading of the diagnostics costs of genetically complex diseases.\nThe development of miniaturised and more powerful analytical and diagnostic tools for the early detection of diseases & for point-of-care monitoring systems is of very high priority for the whole healthcare sector.\nPhotonic biosensors are considered as very promising solutions towards this objective. Despite their attractive attributes, the existing optical biosensors are burdened with the need of external optical components and the final systems are bulky regardless of the miniaturisation level of the biosensors themselves.\nFor the fabrication of the next generation of compact, portable, cost-efficient biosensors which will allow for the label-free, real-time detection of biomolecules (like proteins and DNA strands) at very low concentrations in small-volume samples, \"smarter\" designs are direly required. These designs should also result into biosensing devices able to be mass produced and used in any size clinical centre or even private practice by non-specialised personnel.\nThe principle of operation of the PYTHIA biosensor device is significantly different from the existing detection approaches and is based on broad-band Mach-Zehnder interferometry (BBMZI). The basic sensor scheme consists of a VIS-NIR light source and a waveguide monolithically fabricated on a silicon wafer, while its principle of operation is the spectroscopic interference due to the optical path difference originating by biochemical events. The signal recording will be realised either via an also monolithically fabricated photodetector or via an external spectrophotometer.\nThe integrated nature of the basic biosensor scheme allows for the development of arrays tailored to specific diagnostic applications. Each biosensor array will be comprised of individually functionalised light source/optical waveguide series coupled to a single detector for multiplexing operation. Encapsulation with an appropriately designed microfluidic system will allow for the easy delivery of the samples to be analysed and ensure the facile contact with the external low-noise electronic components. The encapsulated array will be fixed on a cartridge, ready to be manually inserted to its final position in the housing, where it will be directly connected to the optical and electrical interconnects. The biochip, controlled by accompanying user-friendly software, will be capable of simultaneous multi-analyte detection (e.g. mutations of specific genes), and real-time monitoring and processing, with a detection duration that will not exceed a few minutes with minimal blood sample volumes or specimens.Technology choice: Proprietary technology\nMain results, benefits and impacts\nThe PYTHIA project aims at the development of a novel optoelectronic transducer based on broad-band Mach-Zehnder Interferometry (BB-MZI), suitable for wafer scale fabrication, functionalisation and encapsulation and its application to the early diagnosis of human diseases through the label-free, multi-analyte detection of gene mutations and proteins.\nThe PYTHIA biochip is the only device in the world where all active and passive optical components (light source, waveguides, photodetector) are monolithically integrated all in the same Si chip, and fabricated by standard silicon technologies only.\nThe electro-optical bio-transducer, addresses all key issues of existing optical biochips: miniaturisation, ultimate integration level, improved sensitivity and detection limits, repeatability, and adaptability to various diagnostic schemes (genomics and proteomics).\nThe PYTHIA biochip becomes the only truly integrated, fully-compact, all-Si optical biosensor that can be readily implemented to mass-production.\nThe biochip, controlled by accompanying user-friendly software, will be capable of simultaneous multi-analyte and real-time detection, with an assay duration that will not exceed a few minutes with minimal blood sample volumes or specimens.\nThe PYTHIA optoelectronic transducer consists of a VISNIR light source and a waveguide monolithically fabricated on a Si wafer and patterned in two arms. Its principle of operation is the spectroscopic interference due to the optical path difference between the reference and properly functionalised sensing arm originating from biochemical events. The signal recording is realised either via an also monolithically fabricated photodetector or via an external spectrophotometer.\nThe basic biosensor scheme allows for the development of arrays consisting of individually functionalised light source/optical waveguide series coupled to a single detector for multiplexing operation.\nWafer-scale encapsulation along with an appropriately designed microfluidic system allow for the easy delivery of the samples and ensure the facile contact with the external low-noise electronic components. The encapsulated array is fixed on a cartridge ready to be manually inserted to its final position in the housing.\nThe electrical and optical characterisation of the first batch of optoelectronic transducers provided a solid confirmation of the BB-MZI concept and useful information for the design optimisation of the biosensor chips. The transducers were functionalised and encapsulated with a microfluidic cell to be possible to evaluate them in real conditions. For the Biotin- Streptavidin model assay, the detection of streptavidin in the picomolar range was easily demonstrated, which is comparable with the state of the art values for labelfree biosensors.\nThe progress in the design and fabrication of the biochip along with the preliminary results obtained so far are convincing that the PYTHIA biochip and measuring apparatus will be able to diagnose diseases at an early stage, determine whether one will suffer from hereditary diseases and provide head-up warnings for one's well-being.\nReturn on investmentReturn on investment: Not applicable / Not available\nThis field will be completed by the submitter when the lessons learnt have been identified and understood.Scope: Cross-border, International","domain":"optical_engineering"}
{"url":"https://citadim.org/file-ready/fiber-optics-standard-dictionary-fiber-optics-standard-dictionary","date":"2019-06-25T15:00:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999838.27/warc/CC-MAIN-20190625132645-20190625154645-00436.warc.gz","language_score":0.8579975962638855,"token_count":205,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__182123636","lang":"en","text":"Fiber optics standard dictionary second edition martin h weik dse consultant in fiber optics research systems and standards jor the united states navy. Fiber optics vocabulary development in 1979 the national communications system published technical infonnationbulle tin tb 79 1 vocabulary for fiber optics and . Fiber optics standard dictionary martin weik on amazoncom free shipping on qualifying offers fiber optics vocabulary development in 1979 the national . The first edition of this dictionary was written during the years preceding 1980 no fiber optics glossary had been published by any recognized stan dards body no . Fibre optics definition at dictionarycom a free online dictionary with pronunciation synonyms and translation look it up now\nHow it works:\n1. Register a Free 1 month Trial Account.\n2. Download as many books as you like ( Personal use )\n3. No Commitment. Cancel anytime.\n4. Join Over 100.000 Happy Readers.\n5. That's it. What you waiting for? Sign Up and Get Your Books.","domain":"optical_engineering"}
{"url":"https://cubii.co/en/35321-laser-techniques-in-industry/","date":"2024-04-17T10:01:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817146.37/warc/CC-MAIN-20240417075330-20240417105330-00867.warc.gz","language_score":0.9423053860664368,"token_count":1130,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__181126130","lang":"en","text":"Various laser machines,they are one of the most important types of modern operating machines:\n–They are the most important modern machines equipped with accurate and high technology, to focus laser beams with high energy on different types of materials and cutting, drilling, printing, welding or forming parts from scratch, such as three-dimensional printers, all according to the application used and are controlled using computers on the design programs, There are differences between the types of laser machines and for this you must define the goals of their use so that you can choose the appropriate capabilities for you according to the types of materials that you work with and according to the need and application to be used.\n-Various laser machines use laser beam technology and are used in industrial applications, but when it began to spread it was in small industries.\n-Laser machines provide you with an unlimited number of uses that can be worked in various industries, as well as in types of industries, whether small or medium and very important in large industries, and these machines are always the first in many fields.\n– The types of laser machines allow you to create many uses through control programs between the computer and machines that are easy to operate with. For example, you can create automatic designs from design programs on the computer, which are sent directly from the computer as soon as they are sent to the machine to execute the order on the materials.\n-In the year 1965 the first laser diamond drilling machine was produced. This machine was manufactured by the Western Electric Engineering and Research Center and in 1970 the technology developed and expanded the use of the laser to include metals such as titanium for aircraft manufacturing.\n-The production of a laser beam is accomplished by stimulating a specific material using electrical discharge. During laser stimulation, the laser beam is reflected internally by means of a partial mirror until it reaches a certain degree of energy to come out as a coherent monochromatic light beam.\nusage of laser in machines:\nFirst , laser cutting machines: the laser works by directing the laser beam through lenses and focusing the beam on the working surface, which in turn melts, evaporates, or burns, leaving the working surface clean and the final surface is very good.\nAdvantages of using the laser cutting machine:\nThe laser cutting machine has fast cutting properties and good cutting quality. They can be summarized as follows:\n1) Fast cutting speed.\n2) The quality and surface finish of the parts are high.\n3) High cutting efficiency.\n4) Environmental protection without pollution\n5) Compared with the traditional method of feeding, the laser cutting machine can achieve material saving by using nesting at reasonable temperature. It can also increase production efficiency and reduce costs.\nSecond laser welding machines:\nLaser welding or laser beam welding (LBW) is a technique of welding several metal parts using a laser. Laser welding (light amplification by stimulated emission of radiation) is perhaps the latest addition to the growing family of welding processes. As the laser beam: directional, strong, monochromatic (of one wavelength) and coherent, all waves are in phase. Such a beam can be focused on a very small spot, which gives a very high energy density and provides the laser beam a focused heat source with a precise area and accurate depth, and this leads to the metal melting its elements in the desired area, which has a focus from the laser beam and thus this molten area begins to fuse With the other part of the metal to be welded\nSome of the different types of machines that mainly use lasers:\n- Laser machine for engraving on glass, wood or metal.\n- Laser machines to cover metal surfaces in order to protect from damage|cladding|.\n- Laser machines,3D printers to produce various metal and non-metallic solids.\n- Laser devices to perform tests and analysis for patients with leukemia and treatment of many cases of them|cytophone|.\n- Medical laser devices to perform some different operations of the eye, retinal problems, and myopia.\n- Laser engraving and cutting machines.\n- Laser machines to make seals on various metal materials.\nNozzles are used in all machines that use laser and these nozzles are made of:\n1- Copper, which is one of the most common materials.\n3- Stainless steel.\n-In conclusion, the use of laser machines in industry is a way to ensure product quality, reduce | labor intensity and labor cost | and improve the working environment necessary for modern production. Laser machines play an important role in this.\n-The results showed that most errors in laser machines are closely related to the operating order and operational environment of the high-power laser cutting machine. As high temperature can lead to moisture in the laser. In order to prevent this situation from occurring and reduce the time of equipment failure, 1-The temperature of the place in which the machine is located must be maintained and that is by maintaining the safety and temperature of the Freon chalking and this is the laser tube, 2-The stability and stability of the machine must be maintained in its place and not Move it permanently, 3- Do not overload to work on it until this does not lead to overheating of the laser tube and thus damage it, 4-Clean the machine from dust, impurities and plankton.\nIn order to find out more about the distinctive cubii automatic machine for filling and sealing packages, please watch this video.","domain":"optical_engineering"}
{"url":"http://healthnewsdigest.com/2020/09/10/seeing-the-eye-like-never-before/","date":"2024-02-24T13:21:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474533.12/warc/CC-MAIN-20240224112548-20240224142548-00110.warc.gz","language_score":0.9280441403388977,"token_count":724,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__166297274","lang":"en","text":"(HealthNewsDigest.com) – While there is no cure for blindness and macular degeneration, scientists have accelerated the process to find a cure by visualizing the inner workings of the eye and its diseases at the cellular level.\nIn an effort led by UW Medicine, researchers successfully modified the standard process of optical coherence tomography (OCT) to detect minute changes in response to light in individual photoreceptors in the living eye.\nThe results were published Sept. 9 in Science Advances.\n“We have now accelerated the life cycle of vision restoration,” said lead author Vimal Prabhu Pandiyan, a ophthalmology researcher at the University of Washington School of Medicine.\nThe study was funded in part by the National Eye Institute’s Audacious Goals Initiative, which embraces bold ideas in helping people to see better.\nThe OCT modifications outlined in the study will help researchers who want to test therapies such as stem cells or gene therapy to treat retinal disease. They now have the tools to zoom in on the retina to evaluate whether the therapy is working.\nCorresponding author Ramkumar Sabesan, a UW assistant research professor of ophthalmology, said the only way to objectively measure the eye currently is to look at a wide retinal area. Sabesan said researchers currently can attach electrodes on the cornea but it captures a large area with around 1 million cells. Now they are talking about nanometers, or one billionth of a meter – a small fraction of the size of a cell, providing orders of magnitude improvement.\n“Since photoreceptors are the primary cells affected in retinal generation and the target cells of many treatments, noninvasive visualization of their physiology at high resolution is invaluable,” the researchers wrote.\nCone photoreceptors are the building blocks of sight, capturing light and funneling information to the other retinal neurons. They are a key ingredient in how we process images and patterns of light falling on the retina.\nOptical coherence tomography has been around since the 1990s. In this study, researchers used OCT with adaptive optics, line-scanning and phase-resolved acquisition to deliver the concept of Thomas Young’s interference to the human eye. With the ability to zoom in on the retina at high speeds, they found that cone photoreceptors deform at the scale of nanometers when they first capture light and begin the process of seeing.\nAs Sabesan explained: “You can imagine a picture that looks visually and structurally normal. But when we interrogate the inner working of the retina at a cellular scale, we may detect a dysfunction sooner than what other modalities can do. A doctor then can prescribe medication to intervene early or follow the time-course of its repair via gene therapy or stem cell therapy in the future.”\n“We will now have a way to see if these therapies are acting in the way they should,” Sabesan said.\nThe study also involved researchers at Stanford University, University of California, Berkeley, and University of California, Riverside.\nThe study was funded by NIH grants U01EY025501, EY027941, EY029710, EY025501, and P30EY001730; Research to Prevent Blindness Career Development Award; Foundation Fighting Blindness; Murdock Charitable Trust; Burroughs Welcome Fund Careers at the Scientific Interfaces; and Unrestricted grant from the Research to Prevent Blindness.","domain":"optical_engineering"}
{"url":"http://crfc.robopolis-company.ru/28049","date":"2021-12-03T22:03:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362919.65/warc/CC-MAIN-20211203212721-20211204002721-00133.warc.gz","language_score":0.9094820618629456,"token_count":2272,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__201483576","lang":"en","text":"Drivewear lenses can sense and react to varying light conditions both outside and behind the windshield of the car. In overcast conditions, the lenses are olive green in colour, which changes to a copper shade in normal daylight, and dark brown in very bright sun. Their transitions drivwear NuPolar ® polarisation removes glare off the road and car hood. They are also transitions polarized to reduce glare while driving. Transitions Drivewear lenses promote preferential activation of the eye’s red cones (and to a lesser extent, green cones) and result in the best possible vision at these higher light levels. From bright sunlight accompanied by intense, blinding glare, to overcast inclement conditions, Drivewear lenses provide the wearer with the appropriate visual solution. Search only for transitions drivwear. 50 - Flat Top 28 - Hardcoated Transitions ® Drivewear® - POLYCARBONATE 1.\nTheir transitions drivwear NuPolar® polarization removes glare off the road and car hood. In addition, Transitions ® Drivewear ® sun lenses self adjust to changing visible light transitions drivwear conditions and transitions drivwear are polarized to enhance visual performance and the driving experience by automatically changing their degree transitions of darkness and color. However, being keen to gain experience regarding anything new in Optics, I had a transitions drivwear pair of single vision made to my prescription, and was astounded!\nTransitions lenses automatically adapt to changing light conditions and help protect against harmful blue light indoors and outdoors. 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Transitions® Drivewear® Drivewear transitions drivwear lenses are capable of sensing and reacting to varying light conditions both outside and behind drivwear transitions drivwear the windshield of the car. IN LOW LIGHT AND OVERCAST CONDITIONS Transitions Drivewear lenses are a green/yellow colour offering high contrast whilst outdoors or driving. From bright sunlight transitions drivwear accompanied by intense, blinding glare, to overcast inclement conditions, Transitions Drivewear lenses provide the wearer with the appropriate visual solution. I was really impressed with the whilst driving in the sun and. Transitions® Drivewear® is the best driving lens on the market today.\nTransitions Driverwear lenses are polartized to help remove glare off the road and car hood, and adjust to the transitions drivwear changing light as you drive. So I was asked to review Drivewear sunglasses and I must admit what an amazing pair of lenses. Transitions transitions drivwear ® Drivewear ® are the only polarised sun lenses that adapt to light behind the windscreen and outdoors, helping remove glare off the road and car bonnet for a picture-perfect drive.\nTRANSITIONS® DRIVEWEAR® SUN LENSES Driving conditions change rapidly and so do Transitions Drivewear ® transitions drivwear sun lenses. © Transitions Optical Limited. transitions drivwear Rating ★★★★☆ More info transitions. and Light Under Control are registered trademarks of Transitions Optical Limited. Shamir Attitude III Single Vision GR transitions drivwear BR GR V -6. These lenses have been around for a decade or more, and they offer the convenience of sunglasses transitions without having to wear them over your prescription glasses or having to constantly switch between the two.\nThey&39;re transitions drivwear specially designed to provide a more enjoyable driving experience. Transitions® Drivewear® lenses are the only polarized sun lenses that transitions drivwear adapt to light behind the wheel and outdoors, helping remove glare off the road and car hood for a picture-perfect drive. 67 lenses which includes anti-reflective treatment & superior scratch resistance. Compare the features of Transitions lenses and find out which lens is right for you. DriveWear® lenses drivwear adjust to light conditions in the following manner: Low Light Conditions – DriveWear® converts to a greenish yellow for high contrast vision. Transitions ® Vantage ® Lenses. These are polarized photocromic adaptive lenses that are made specifically for use behind the wheel. Transitions Drivewear are sunglasses optimized for driving that change from a lighter, olive-green tint to a darker brown one depending on the light conditions.\nIt changes from light to dark while driving transitions drivwear as road conditions change. Style your frames with the lens color you love by adding transitions a new Transitions style mirror. For more driving needs, one style of photochromic lens is Transitions Drivewear, transitions drivwear also produced by Transitions Optical. Discover Transitions Optical photochromic lenses and glasses.\nPhotochromic performance and polarization are. Transitions Drivewear Lenses. com; Buy this example on Amazon. Enter Drivewear® lenses, created by Transitions® to solve that problem. Transitions Drivewear sunglasses review. Since they start off with a tint, transitions drivwear they are not recommended for indoor use. --- Transitions Signature Photochromic Lenses--- Blue Anti-Reflective Treatment I went to Costco for their Kirkland Signature HD Progressive High Index 1.\ncom to find transitions drivwear an Oakley Authorized Prescription Sunglass Dealer near you. OUR BEST LENSES FOR GLARE REDUCTION OUTDOORS. Not only do they adjust from fully clear indoors to the perfect tint outdoors, but they also block dangerous UV rays and filter Harmful Blue Light †, which can be found outdoors and from digital devices. Transitions ® Drivewear® - HARD RESIN 1.\nTransitions Drivewear’s high contrast polarizer is absolutely essential behind the windshield of the car, because it transitions drivwear blocks out blinding glare, one of the most dangerous of all driving hazards.\n-> Angular momentum only transitions\n-> Handy seamless transitions pack & script v3.3.2","domain":"optical_engineering"}
{"url":"http://www.tecdicarlofioretti.com/products/?cat=Miscellanea&prod=Camera_Speed_Reference","date":"2023-09-22T21:04:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506423.70/warc/CC-MAIN-20230922202444-20230922232444-00474.warc.gz","language_score":0.8711870312690735,"token_count":210,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__244861317","lang":"en","text":"Camera Speed Reference\nCAMERA SPEED REFERENCE is a sophisticated, yet rugged instrument, that has been designed as bench tool in Camera Service Shops, Rental Houses or as a tool during shooting, every time a precise speed reference is required to check the camera frame rate, either crystal controlled or not.\nIt delivers exact crystal controlled speed of 24 or 25 fps, switch selectable.\n48, 96, 50 and 100 fps can checked too, by selecting multiple higher speeds.\nCamera speed can be checked through the viewfinder, if the camera is reflex, or directly through the gate looking at CAMERA SPEED REFERENCE.\nDue to stroboscopic effect, the LEDs will be stationary if camera speed is correct, according to frame rate selected on the instrument.\nCW or CCW apparent movement of the LEDs will denote a camera that is not correctly adjusted.\nCamera Speed Reference info\nCamera Speed Reference_instructions","domain":"optical_engineering"}
{"url":"https://www.technoiser.com/sony-xperia-1-ii-can-shoot-bursts-at-a-frame-rate-of-20-fps/","date":"2023-03-27T16:59:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948673.1/warc/CC-MAIN-20230327154814-20230327184814-00757.warc.gz","language_score":0.8850964307785034,"token_count":1297,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__151093978","lang":"en","text":"Sony Xperia 1 II Can Shoot Bursts at a Frame Rate of 20 fps\nSony Xperia 1 II 5G smartphone has entered the market with a triple lens camera system featuring ZEISS optics with T* (T-Star) anti-reflective coating. Unlike any other competitor, this smartphone boasts a camera that can shoot stills at a massive frame rate of up to 20 fps with AF / AE tracking. In terms of display, Xperia 1 II features a 6.5″ 4k HDR OLED screen with a 21:9 aspect ratio and covers 100% DCI-P3 color gamut supporting 10 bit color depth (not true 10 bit).\nSony Xperia 1 II Image Sensor & Processor, Frame Rate, AF, & Other Camera Specs\nImage Sensor and Processor\nCompared to the predecessor, the image sensor in the new Sony flagship is twice as large. Xperia 1 II utilizes a large 1/1.7” Exmor RS image sensor instead of 1/2.6″. Due to the bigger sensor size, the camera is able to capture more light that results in better low light performance and blur. Complementing that, the BIONZ X image processor significantly increases the light sensitivity of the camera without introducing perceptible noise.\nThis is where this smartphone throws other competitors out of the competition. Sony Xperia 1 II can shoot continuous stills at a frame rate of up to 20 fps. Only a few of the high-end DSLR or mirrorless cameras such as Sony a9, a9 II, and Canon EOS 1D X MKIII, can reach such burst rates. Wildlife and sports photographers will definitely admire the camera performance of this 5G smartphone.\nOne thing to keep in mind is that shooting stills at 20 frames per second is only achievable through the 24mm camera. Whereas, the other 2 cameras support burst rates of 10 fps.\nXperia 1 II now offers eye autofocus support for both humans and animals. As of now, animal AF capabilities are very limited and it only works well on few animals such as dogs, cats, and similar pets.\nIn general, the AF performance of this Sony flagship is very reliable. By continuously calculating AF/AE up to 60 fps, Xperia 1 II keeps the subject in focus even at high frame rates. Again, only the 24mm camera calculates AF/AE at 60 fps whereas the other 16mm and 70mm cameras will do the same at 30 fps.\nExcept for 70mm, both 16mm and 24mm cameras incorporate a dual photo diode sensor that ensures fast and accurate autofocus. Xperia 1 II also comes with a 3D iTOF (indirect Time-of-Flight) sensor, that instantly calculates the distance between the subject and the camera. As a benefit, the autofocus performance gets a substantial boost in terms of speed and reliability.\nSony Xperia 1 II Camera Specs\nSony worked with ZEISS to introduce T* (T-Star) anti-reflective coating to the Xperia 1 II triple-lens camera system. ZEISS T* coating eliminates flare and ghosting effects in order to produce a sharp and vivid image.\nAll of the three cameras in Xperia 1 II feature the same 12 MP resolution. However, their aperture, FOV (field of view), and sensor size vary due to obvious reasons.\n|Resolution||12 MP||12 MP||12MP||12MP|\nSony Xperia 1 II is also capable of recording amazing cinematic videos with an aspect ratio of 21:9 at 4k (3840×1644) HDR resolution. Users of the previous model will find new manual controls in this new version.\nTo capture the maximum possible dynamic range, RAW support is also available so you can tweak colors as per your choice in post production. Other important features such as OIS, Optical zoom, etc. are also available.\nXperia 1 II Display Features\nNot just the camera, even the display specifications are amazing for the new Xperia 1 II. The 6.5 inch 4k HDR screen features an OLED panel that provides rich viewing experience by displaying an outstanding level of brightness and contrast. Just like high-end professional displays, Xperia 1 II covers 100% DCI-P3 color gamut and supports a 10 bit color depth. Note that the bit depth is not true 10 bit, rather it is true 8 bit with 2 bit smoothing.\nWith the help of the Image Edge mobile app, you can also use this smartphone as a remote display with any of the Sony Alpha cameras.\nMobile Processor, RAM, Storage, & Battery\nSony Xperia 1 II features the latest Qualcomm Snapdragon 865 processor which makes the smartphone almost 25% faster than the predecessor. Along with that, it includes a Snapdragon X55 5G Modem-RF system. In terms of memory, this smartphone carries 8GB of RAM and comes with a built-in 256GB UFS storage. If you want, you can further expand the storage via microSDXC up to 1TB. Lastly, the 4000 mAh battery will ensure long continuous runtime.\nSometimes, you may fall into situations where the weather conditions are harsh or windy. With the help of Intelligent wind filter technology, Xperia 1 II can provide clean audio by eliminating the unwanted frequencies usually caused by the wind.\nOther exciting audio features include:\n- 360 Reality Audio hardware decoding\n- True front stereo speakers\n- Improved audio separation on the 3.5mm audio jack\nSony Xperia 1 II holds IP65/68 rating which makes it both water and dust resistant. And the Corning Gorilla Glass 6 protects the smartphone from both sides in case of drops.\nXperia 1 II will soon be available in 3 colors:\nYou may like this post on Galaxy S20 smartphones from Samsung.","domain":"optical_engineering"}
{"url":"https://us.newtonoptic.com/about/show.php?id=143","date":"2023-12-11T16:39:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679515260.97/warc/CC-MAIN-20231211143258-20231211173258-00262.warc.gz","language_score":0.9252764582633972,"token_count":183,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__114249235","lang":"en","text":"Guangzhou Newton optical Research Institute Co., Ltd., located in the venture technology park of Jinan University, Tianhe District, Guangzhou, is an innovative enterprise focusing on the application of intelligent imaging technology in the field of life science. The company integrates product R & D, production and sales. As a pioneer of intelligent imaging technology, we adhere to the design concept of \"one-step completion\", We are committed to providing users with high-quality products, intelligent and automatic experimental schemes, and fast and accurate experimental results.\nThe company has a high-quality R & D team, jointly developed with Jinan University, applied a number of cutting-edge patented technologies, and strive to bring more intelligent and advanced products to users. Focus and achieve excellence. Adhering to the business philosophy of \"integrity, responsibility and excellence\", we make the experimental analysis and research easier, easier and more accurate!","domain":"optical_engineering"}
{"url":"http://calcoastnews.com/2011/05/cal-poly-tops-own-patent-record/","date":"2017-04-29T03:43:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123270.78/warc/CC-MAIN-20170423031203-00605-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9307031035423279,"token_count":354,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__66251831","lang":"en","text":"Cal Poly tops own patent record\nMay 6, 2011\nCalifornia polytechnic State University in San Luis Obispo reports that three patents have been issued by the United States Patent and Trademark Office to university faculty this academic year—a record number of patents earned for a single year.\nIn an announcement this week, Cal Poly’s Research and Graduate Programs Office boasted the inventions which represent ingenuity in medicine, manufacturing, and computing.\nJohn Sharpe, a professor in the Physics Department, received patent protection for a “System Method and Apparatus for Optical Directional Determination.” The technology is an optical technique which can measure the flow of fluid. The invention could potentially reduce costs of devices in manufacturing and in personal computer components such as optical mice.\nCo-inventors Lanny Griffin from Cal Poly’s Department of Biomedical Engineering, and Dane Jones from the school’s Department of Chemistry were issued a patent for a “Polymeric Splint and Rapid-Setting Polyurethane.” The invention is a type of splint which offers immediate treatment for broken bones when breaks occur far from medical care, such as military field operations or wilderness backpacking.\nThe third patent is for a “System Method and Apparatus for a Multi-Phase DC-to-DC Converter.” The new power-converter design is intended to help the power-supply industry improve microprocessor and computer performance. The intellectual property right was given to Dr. Taufik, professor of Electrical Engineering and Director of the Electric Power Institute.\nThese latest innovations brings Cal Poly’s portfolio total to 11 patents. Eight other inventions are still in the process of seeking patents.","domain":"optical_engineering"}
{"url":"https://math.gmu.edu/ACMabstracts/F12/maki.html","date":"2023-12-05T02:40:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100540.62/warc/CC-MAIN-20231205010358-20231205040358-00116.warc.gz","language_score":0.826139509677887,"token_count":294,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__199093351","lang":"en","text":"Speaker:Kara L Maki, School of Mathematical Sciences, RIT\nTitle: Settling Dynamics of the Contact Lens\nThe U.S. contact lens industry is a multi-billion dollar industry; 34 million people wear contact lenses nationwide.\nWe study the settling dynamics of a contact lens to help accelerate the empirical design process used in the industry.\nWhen a contact lens is placed in the eye, it is subjected to forces from both the tear film and the blink, and in response,\nthe lens bends and stretches. These forces allow for proper lens centration, and they create the suction pressure responsible\nfor keeping the lens on the corneal surface. We couple fluid and solid mechanics to formulate a mathematical model that can\npredict the changes in pressure distribution and lens shape over time. We explore the role of the different forces in\ninfluencing the contact lens fit. This work is in collaboration with Bausch + Lomb, David S. Ross, and Emily K. Holz.\nTime: Friday, October 26, 2012, 1:30-2:30 p.m.\nPlace: Planetary Hall (formerly S & T I), Room 242\nDepartment of Mathematical Sciences\nGeorge Mason University\n4400 University Drive, MS 3F2\nFairfax, VA 22030-4444\nTel. 703-993-1460, Fax. 703-993-1491","domain":"optical_engineering"}
{"url":"https://rangermade.net/hunting-equipment/spotting-scopes-what-are-they","date":"2023-10-01T12:20:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510888.64/warc/CC-MAIN-20231001105617-20231001135617-00812.warc.gz","language_score":0.9474104642868042,"token_count":1355,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__70334570","lang":"en","text":"Despite recent scientific advances to create a hybrid optic called a metalens, glass-based lenses are still the only game in town for full-function telescopes, binoculars, and spotting scopes. Most people know and understand what binoculars and telescopes are and what they’re used for, but what are spotting scopes? It’s actually pretty simple.\nA Spotting Scope vs A Telescope vs Binoculars\n1. Telescope vs Spotting Scope\nA spotting scope is a small or portable telescope. It is used during the day instead of the night. Unlike a traditional telescope, a spotting scope has to weatherproof features to deal with fog, rain, and mist. It includes connectors so it can be mounted on a camera tripod, and the image in a spotting scope is always right side up the way we see things ourselves, instead of upside-down like a normal telescope. It also has a lower magnification as compared to a telescope. Finally, spotting scopes are smaller and do not weigh as much as normal telescopes.\n2. Binoculars vs Spotting Scope\nBinoculars have two lenses on each end of the instrument, where a spotting scope has one lens at each end. Spotting scopes have greater magnification than binoculars, with greater clarity. Binoculars are lightweight and intended to be handheld. Spotting scopes start at one pound for the smaller ones and quickly increase in weight as the quality and power goes up. Three to four pounds is not unusual for a spotting scope.\nThe magnification for spotting scopes usually begins where binoculars stop. This lets you see more distant objects, and in great detail than binoculars ever could. But greater magnification means that atmospheric conditions will start to have an increased impact on how well you can see what you’re looking at. Dust, glare, humidity, heat waves, and air current will all exert a tremendous impact on the quality of the image. You should high magnification to view landscapes or objects on high attitudes and at dry climates. When at wet and low attitude climates, consider adjusting to a lower magnification.\nWhat this means in everyday practical terms is that anything over 30x will not always be useful. However, on clear calm days with low humidity, a 60x spotting scope could bring you crystal clear images. Trying to achieve that kind of clarity at magnifications in excess of 60x will be prohibitively expensive, so most spotting scopes end their magnification at that point. There is no need of buying an absurdly expensive telescope that can magnify hundreds of time, yet you are most likely going to limited to a magnification of just 60x\nAnother aspect to consider with regard to image quality is the optical system. Spotting scopes are designed in such a way that image quality goes down as the magnification goes up. This limitation is common in all models, but varies with the quality of your device. The standard low-cost spotting scopes tend to be more limited in this aspect than the high-end expensive scopes. The premium scopes tend to maintain image quality better than their counterparts even when you increase their magnification. You will have to part with a few more bucks though to get such a high-grade scope.\n1. Magnification Numbers\nSpotting scopes have three numbers on them that tell you what kind of magnification they have. For instance, if a spotting scope says it is 30-60×80, it means the magnification runs from 30x to 60x and the front lens, called the objective, is 80mm in diameter. The greater the diameter of the objective, the greater the clarity of the image.\n2. Objective Glass\nIf you want to see more detail and a better image quality, then go for a larger objective lens. The size of the objective lens also determines the image quality at higher magnification, where larger is better. In spite of this, make sure that lens is not only large, but also a quality one. If a lens is large but of poor quality, you will still get poor image quality. Under normal circumstances, the clarity of the image will decrease sharply at magnifications over 40x. If your needs require you to get sharp images at magnifications over that, because you are a photographer or something, you will have to spend more to get an objective lens made from special materials such as Fluorite glass, ED glass, HD glass, or APO glass.\nInside a spotting scope, there will be one of two different prisms, used to make sure the image is right side up; a Porro prism or a Roof prism.\n1. Porro Prism\nMost prisms are Porro prisms. It is an extremely efficient design. It is easy to use, affordable and can accept multiple interchangeable eyepieces. It is heavier than the other prism but it usually has camera adapters, so it can be mounted on a camera tripod.\n2. Roof Prism\nRoof prisms are slim and compact. They don’t weigh as much as Porro prisms but they’re not as efficient as them either. The efficiency of the prism can be increased if you get one that is phase-coated. Scientists are working on creating even better coatings and lens protection all the time so this part will definitely change. For people who travel or who do not need to use a tripod, roof prisms will probably be the better choice.\nSpotting scopes with an attached eyepiece are the lower priced ones. Spotting scopes that use separate eyepieces, swapping out multiple eyepieces for different uses, are the more expensive ones. If a spotting scope is advertised as a “body only” scope, it means it does not include an eyepiece at all. You’ll have to buy the eyepiece(s) separately.\nEyepieces can be single magnification or zooming. Eyepieces that are single magnification have better sharpness and clarity. Zooming eyepieces are easier to use and more convenient. To determine which among the available alternatives is best for you is a decision you’ll have to make based on what you intend to use it for.\nUses of Spotting Scopes\nLike binoculars, spotting scopes are used for surveillance, hunting, bird watching, viewing ships, landscapes and other distant objects. They can also be useful for scoring targets, archery and in some cases astronomy. You can take nice images of long distant images using specialized cameras with these devices.","domain":"optical_engineering"}
{"url":"http://library.kiwix.org/wikipedia_en_all_nopic_2018-09/A/Quantum_sensor.html","date":"2019-05-21T00:26:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256184.17/warc/CC-MAIN-20190521002106-20190521024106-00210.warc.gz","language_score":0.8800019025802612,"token_count":426,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__20468257","lang":"en","text":"A quantum sensor is a device that exploits quantum correlations, such as quantum entanglement, to achieve a sensitivity or resolution that is better than can be achieved using only classical systems.\nA quantum sensor can measure the effect of the quantum state of another system on itself. The mere act of measurement influences the quantum state and alters the probability and uncertainty associated with its state during measurement.\nThe Defense Advanced Research Projects Agency has recently launched a research program in optical quantum sensors that seeks to exploit ideas from quantum metrology and quantum imaging, such as quantum lithography and the NOON state, in order to achieve these goals with optical sensor systems such as lidar.\nA good example of an early quantum sensor is an APD avalanche photodiode such as the AD500-8 TO52S1 as these have been used to detect entangled photons and in fact with additional cooling and sensor improvements can be used where PMTs once ruled the market such as medical imaging. These are also now being used by First Sensor in the form of 2-D and even 3-D stacked arrays as a direct replacement for conventional sensors based on silicon diodes.\n- K.T.Kapale, et al., Concepts of Physics 2 (2005) 225.\n- Israel, Yonatan (2014). \"Supersensitive Polarization Microscopy Using NOON States of Light\". Physical Review Letters. 112. Bibcode:2014PhRvL.112j3604I. doi:10.1103/PhysRevLett.112.103604.\n- DARPA Quantum Sensor Program.\n- BROAD AGENCY ANNOUNCEMENT (BAA) 07-22 Quantum Sensors\n- J.J.Bollinger, et al., Phys. Rev. A 54 (1996) R4649.\n- M.Auzinsh et al., Phys. Rev. Lett. 93 (2004) 173002.\n- A.Guillaume & J.P.Dowling, Phys. Rev. A 73 (2006) 040304(R).","domain":"optical_engineering"}
{"url":"https://garagedooropenerremotes.com.au/product/20-inch-night-driving-led-light-bar-osram-p8","date":"2023-12-10T23:03:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102697.89/warc/CC-MAIN-20231210221943-20231211011943-00058.warc.gz","language_score":0.7953233122825623,"token_count":378,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__225957071","lang":"en","text":"LED Light Bar Includes\n20 Inch LED Light Bar\nMounting / Fixings Hardware Pack\n1 Year Warranty\nLED Light Bar Specifications\n|Light Bar Weight||1.3kg|\n|Light Bar Length||555.1mm|\n|LED Chip||OSRAM P8 LED’s|\n|Operating Voltage||10-30V DC|\nLED Light Bar Features\nIlluminate your way with the AO-20S-OPS8 LED Light Bar, offering high lumen output, superior cooling, and versatile application for enhanced night-time visibility and safety.\nCobom Reflectors for Better Light Output\nEquipped with a Cobom Reflector combination that floods at 120° and concentrates at 30°, each 5W AO-20S-OPS8 LED chip ensures high lumen output. The advanced design allows the optical fiber to output better and illuminate up to 350 meters away, enhancing your visibility while driving.\nVersatile Installation Options\nAvailable in sizes ranging from 9 to 33 inches, the compact size of the AO-20S-OPS8 LED Light Bar allows for easy installation on virtually any vehicle. It is especially suitable for grills and smaller vehicles like ATVs, UTVs, and motorcycles.\nEfficient Cooling for Extended Lifespan\nThe AO-20S-OPS8 LED Light Bar comes with a high-quality, one-piece aluminum alloy heat sink. Its unique ripple design maximizes the heat dissipation surface area, providing superior cooling and effectively extending its lifespan beyond 40,000 hours.\nExperience safer driving with the AO-20S-OPS8’s anti-reverse and anti-static design. The light bar features a circuit with temperature protection and is designed to operate without causing radiation interference to your vehicle’s other electrical equipment.","domain":"optical_engineering"}
{"url":"https://www.showled.com/blog/burj-khalifa-led-display","date":"2022-08-13T06:48:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571909.51/warc/CC-MAIN-20220813051311-20220813081311-00293.warc.gz","language_score":0.8570215106010437,"token_count":294,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__175278151","lang":"en","text":"Burj Khalifa LED Display\n- January 16 2016\nShowLED's ultra-bright Hybrid LED nodes cover the tallest building in the world, Burj Khalifa, in Downtown Dubai. An astonishing 33.000 square meter surface makes this the largest LED display ever constructed. Not only the largest in surface area, but also the tallest, with its highest point sitting at 750 m well above sea level.\nOVER 50 000 HYBRID PIXELS INSTALLED IN A STRIKING 47 DAYS\nThe record-breaking LED display has an impressive 51.000 ShowLED Hybrid pixels that were all manually placed in position by a rigging team of 30 people. By using 75.000 custom designed brackets, all pixels could be fixed without any form of material causing permanent damage to the building like screws or adhesives.\nSEAMLESSLY LINKED SYSTEM FOR THE PERFECT VISUAL DISPLAY\nThe star of the setup is the ShowLED Hybrid LED node and the unique software to map and control the pixel configuration. Custom engineered for Burj Khalifa, the setup results in more than 357.000 LEDs, 645 power supplies, 70 km of power/data cable, 2km of fibre optic network cabling, and 95 Hybrid controllers.\nThe ShowLED Animation Hybrid system is certified waterproof, highly UV resistant, ultra-bright, energy efficient, cost effective,... in short: Hybrid.","domain":"optical_engineering"}
{"url":"https://www.ordermaubbys.com/forum/general-discussions/akilan-novels-pdf-hot-free-15","date":"2023-10-03T21:01:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511220.71/warc/CC-MAIN-20231003192425-20231003222425-00588.warc.gz","language_score":0.9228506684303284,"token_count":2120,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__179210774","lang":"en","text":"An LP3 radiation thermometer was absolutely calibrated at a newly developed monochromator-based set-up and the TUneable Lasers in Photometry (TULIP) facility of PTB in the wavelength range from 400 nm to 1100 nm. At both facilities, the spectral radiation of the respective sources irradiates an integrating sphere, thus generating uniform radiance across its precision aperture. The spectral irradiance of the integrating sphere is determined via an effective area of a precision aperture and a Si trap detector, traceable to the primary cryogenic radiometer of PTB. Due to the limited output power from the monochromator, the absolute calibration was performed with the measurement uncertainty of 0.17 % (k = 1), while the respective uncertainty at the TULIP facility is 0.14 %. Calibration results obtained by the two facilities were compared in terms of spectral radiance responsivity, effective wavelength and integral responsivity. It was found that the measurement results in integral responsivity at the both facilities are in agreement within the expanded uncertainty (k = 2). To verify the calibration accuracy, the absolutely calibrated radiation thermometer was used to measure the thermodynamic freezing temperatures of the PTB gold fixed-point blackbody.\nA calibration-free electrical method is proposed for measuring the absolute frequency response of directly modulated semiconductor lasers based on additional modulation. The method achieves the electrical domain measurement of the modulation index of directly modulated lasers without the need for correcting the responsivity fluctuation in the photodetection. Moreover, it doubles measuring frequency range by setting a specific frequency relationship between the direct and additional modulation. Both the absolute and relative frequency response of semiconductor lasers are experimentally measured from the electrical spectrum of the twice-modulated optical signal, and the measured results are compared to those obtained with conventional methods to check the consistency. The proposed method provides calibration-free and accurate measurement for high-speed semiconductor lasers with high-resolution electrical spectrum analysis.\nPhotoacoustic tomography (PAT) is a hybrid imaging technique that has broad preclinical and clinical applications. Based on the photoacoustic effect, PAT directly measures specific optical absorption, which is the product of the tissue-intrinsic optical absorption coefficient and the local optical fluence. Therefore, quantitative PAT, such as absolute oxygen saturation (sO2) quantification, requires knowledge of the local optical fluence, which can be estimated only through invasive measurements or sophisticated modeling of light transportation. In this work, we circumvent this requirement by taking advantage of the dynamics in sO2. The new method works when the sO2 transition can be simultaneously monitored with multiple wavelengths. For each wavelength, the ratio of photoacoustic amplitudes measured at different sO2 states is utilized. Using the ratio cancels the contribution from optical fluence and allows calibration-free quantification of absolute sO2. The new method was validated through both phantom and in vivo experiments. PMID:23903146\nA method of the absolute mass scale calibration is suggested for solving the inverse problem of the physical theory of fireballs. The method is based on the data on the masses of the fallen meteorites whose fireballs have been photographed in their flight. The method may be applied to those fireballs whose bodies have not experienced considerable fragmentation during their destruction in the atmosphere and have kept their form well enough. Statistical analysis of the inverse problem solution for a sufficiently representative sample makes it possible to separate a subsample of such fireballs. The data on the Lost City and Innisfree meteorites are used to obtain calibration coefficients.\nA method of the absolute calibration of the mass scale is proposed for solving the inverse problem of the physical theory of fireballs. The method is based on data on the masses of fallen meteorites whose fireballs have been photographed in flight. The method can be applied to fireballs whose bodies have not experienced significant fragmentation during their flight in the atmosphere and have kept their shape relatively well. Data on the Lost City and Innisfree meteorites are used to calculate the calibration coefficients.\nThis paper reports measurement of the absolute intensity of free-electron laser (FEL) and calibration of online intensity monitors for a brand-new FEL beamline BL1 at SPring-8 Angstrom Compact free-electron LAser (SACLA) in Japan. To measure the absolute intensity of FEL, we used a room-temperature calorimeter originally developed for FELs in the hard X-ray range. By using the calorimeter, we calibrated online intensity monitors of BL1, gas monitors (GMs), based on the photoionization of argon gas, in the photon energy range from 25 eV to 150 eV. A good correlation between signals obtained from the calorimeter and GMs was observed in the pulse energy range from 1 μJ to 100 μJ, where the upper limit is nearly equal to the maximum pulse energy at BL1. Moreover, the calibration result of the GMs, measured in terms of the spectral responsivity, demonstrates a characteristic photon-energy dependence owing to the occurrence of the Cooper minimum in the total ionization cross-section of argon gas. These results validate the feasibility of employing the room-temperature calorimeter in the measurement of absolute intensity of FELs over the specified photon energy range.\nIn-situ intelligent manufacturing for large-volume equipment requires industrial robots with absolute high-accuracy positioning and orientation steering control. Conventional robots mainly employ an offline calibration technology to identify and compensate key robotic parameters. However, the dynamic and static parameters of a robot change nonlinearly. It is not possible to acquire a robot's actual parameters and control the absolute pose of the robot with a high accuracy within a large workspace by offline calibration in real-time. This study proposes a real-time online absolute pose steering control method for an industrial robot based on six degrees of freedom laser tracking measurement, which adopts comprehensive compensation and correction of differential movement variables. First, the pose steering control system and robot kinematics error model are constructed, and then the pose error compensation mechanism and algorithm are introduced in detail. By accurately achieving the position and orientation of the robot end-tool, mapping the computed Jacobian matrix of the joint variable and correcting the joint variable, the real-time online absolute pose compensation for an industrial robot is accurately implemented in simulations and experimental tests. The average positioning error is 0.048 mm and orientation accuracy is better than 0.01 deg. The results demonstrate that the proposed method is feasible, and the online absolute accuracy of a robot is sufficiently enhanced.\nA cross-calibration methodology has been developed using coincident image pairs from the Terra Moderate Resolution Imaging Spectroradiometer (MODIS), the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) and the Earth Observing EO-1 Advanced Land Imager (ALI) to verify the absolute radiometric calibration accuracy of these sensors with respect to each other. To quantify the effects due to different spectral responses, the Relative Spectral Responses (RSR) of these sensors were studied and compared by developing a set of \"figures-of-merit.\" Seven cloud-free scenes collected over the Railroad Valley Playa, Nevada (RVPN), test site were used to conduct the cross-calibration study. This cross-calibration approach was based on image statistics from near-simultaneous observations made by different satellite sensors. Homogeneous regions of interest (ROI) were selected in the image pairs, and the mean target statistics were converted to absolute units of at-sensor reflectance. Using these reflectances, a set of cross-calibration equations were developed giving a relative gain and bias between the sensor pair.\nRelative gravimetric techniques have been used for nearly 30 years for measuring non-tidal gravity variations with time, and thus have contributed to geodynamics research by monitoring vertical crustal movements and internal mass shifts. With today's accuracy of about ± 0.05µms-2 (or 5µGal), significant results have been obtained in numerous control nets of local extension, especially in connection with seismic and volcanic events. Nevertheless, the main drawbacks of relative gravimetry, which are deficiencies in absolute datum and calibration, set a limit for its application, especially with respect to large-scale networks and long-term investigations. These problems can now be successfully attacked by absolute gravimetry, with transportable gravimeters available since about 20 years. While the absolute technique during the first two centuries of gravimetry's history was based on the pendulum method, the free-fall method can now be employed taking advantage of laser-interferometry, electronic timing, vacuum and shock absorbing techniques, and on-line computer-control. The accuracy inherent in advanced instruments is about ± 0.05 µms-2. In field work, generally an accuracy of ±0.1 µms-2 may be expected, strongly depending on local environmental conditions.\nDeveloping the manufacture of aspheric and freeform optical elements requires an advanced metrology method which is capable of inspecting these elements with arbitrary freeform surfaces. In this dissertation, a new surface measurement scheme is investigated for such a purpose, which is to measure the absolute surface shape of an object under test through its surface slope information obtained by photogrammetric measurement. A laser beam propagating toward the object reflects on its surface while the vectors of the incident and reflected beams are evaluated from the four spots they leave on the two parallel transparent windows in front of the object. The spots' spatial coordinates are determined by photogrammetry. With the knowledge of the incident and reflected beam vectors, the local slope information of the object surface is obtained through vector calculus and finally yields the absolute object surface profile by a reconstruction algorithm. An experimental setup is designed and the proposed measuring principle is experimentally demonstrated by measuring the absolute surface shape of a spherical mirror. The measurement uncertainty is analyzed, and efforts for improvement are made accordingly. In particular, structured windows are designed and fabricated to generate uniform scattering spots left by the transmitted laser beams. Calibration of the fringe reflection instrument, another typical surface slope measurement method, is also reported in the dissertation. Finally, a method for uncertainty analysis of a photogrammetry measurement system by optical simulation is investigated. 2b1af7f3a8","domain":"optical_engineering"}
{"url":"http://ukyrelazok.tk/thriller/the-effects-of-a-magnetic-field-on-radiation-memoirs.php","date":"2020-02-28T06:15:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875147054.34/warc/CC-MAIN-20200228043124-20200228073124-00274.warc.gz","language_score":0.8948492407798767,"token_count":7779,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__25607793","lang":"en","text":"In addition, our device could be switched from polarization-insensitive to polarization-sensitive by applying a magnetic field. To the best of our knowledge, this study, combining the electrical, magnetic, and optical effects of hot electrons and Si-based devices, is the first to modulate the efficiency of Si-based photodetectors working at optical telecommunication wavelengths. This strategy would, presumably, also be potentially very useful when applied to other hot electron-based systems and devices.\n- Pieter Zeeman!\n- Magneto-optic Kerr effect | Revolvy.\n- Progress in magnetic domain observation by advanced magneto-optical microscopy.\n- Membrane microdomains in disease - Lipid rafts (German Edition)?\n- Magneto-optic and electro-optic effects.\nThe article was received on 23 Feb , accepted on 23 Apr and first published on 03 May If you are not the author of this article and you wish to reproduce material from it in a third party non-RSC publication you must formally request permission using Copyright Clearance Center.\nGo to our Instructions for using Copyright Clearance Center page for details. Authors contributing to RSC publications journal articles, books or book chapters do not need to formally request permission to reproduce material contained in this article provided that the correct acknowledgement is given with the reproduced material.\n- Light Radiation in a Magnetic Field.\n- Faraday effect.\n- Bows Made Easy.\n- Team Zip It, and the Power of Naught; a Terrifying True Tale of State Sponsored Errorism!\n- Récits dun chasseur (French Edition);\nIf the material has been adapted instead of reproduced from the original RSC publication \"Reproduced from\" can be substituted with \"Adapted from\". In all cases the Ref. XX is the XXth reference in the list of references. If you are the author of this article you do not need to formally request permission to reproduce figures, diagrams etc. If you are the author of this article you still need to obtain permission to reproduce the whole article in a third party publication with the exception of reproduction of the whole article in a thesis or dissertation.\nInformation about reproducing material from RSC articles with different licences is available on our Permission Requests page. Jump to main content. Jump to site search. Journals Books Databases. Search Advanced. Current Journals. Archive Journals. All Journals. New Titles. Pick and Choose. Literature Updates. Received Oct 24; Accepted Mar 6. This work is licensed under a Creative Commons Attribution 4. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.\nThis article has been cited by other articles in PMC. Open in a separate window. Figure 1. THz spectroscopy The transmittance experiments at THz frequencies 0. Figure 2. Charge carriers in strained HgTe. Band structure analysis To understand the origin of the experimentally observed resonances, we analyse the band structure of tensile strained Cd 0.\nQuantized THz Hall effect Experimentally, simultaneous fit of the real and imaginary parts of t p and t c allows the extraction of all transport characteristics, that is, conductivity, charge carrier density, scattering time and CR frequency Figure 3. THz QHE of the surface states. Figure 4. Quantized THz Faraday rotation of Dirac fermions. Theoretical analysis of magnetooptical spectra To analyse the experimental transmission spectra, we follow the formalism described by Berreman 24 , Data availability The data that support the findings of this study are available from the corresponding authors upon reasonable request.\nAdditional information How to cite this article: Dziom, V. Peer Review File: Click here to view. Footnotes The authors declare no competing financial interests. References Kane C. Quantum spin Hall effect in graphene. Quantum spin Hall effect and topological phase transition in hgte quantum wells.\nScience , — Topological insulators with inversion symmetry. B 76 , Quantum spin Hall insulator state in HgTe quantum wells. A topological dirac insulator in a quantum spin Hall phase. Nature , — Topological field theory of time-reversal invariant insulators.\nB 78 , Giant magneto-optical Kerr effect and universal Faraday effect in thin-film topological insulators. Inducing a magnetic monopole with topological surface states. Surface state charge dynamics of a high-mobility three-dimensional topological insulator. Terahertz response and colossal Kerr rotation from the surface states of the topological insulator bi 2 se 3. Terahertz quantum hall effect of Dirac fermions in a topological insulator. B 87 , Magneto-optical and magnetoelectric effects of topological insulators in quantizing magnetic fields. B 82 , Topological quantization in units of the fine structure constant.\nAnomalous galvanomagnetism, cyclotron resonance, and microwave spectroscopy of topological insulators. B 84 , Optical Hall effect in the integer quantum hall regime. Quantum Faraday and Kerr rotations in graphene. Quantum Hall effect from the topological surface states of strained bulk HgTe. Dirac-screening stabilized surface-state transport in a topological insulator.\nX 4 , Cyclotron-resonance-assisted photocurrents in surface states of a three-dimensional topological insulator based on a strained high-mobility HgTe film. B 92 , Giant magneto-optical Faraday effect in HgTe thin films in the terahertz spectral range. Room temperature electrically tunable terahertz Faraday effect.\nDielectric measurements in the submillimeter wavelength region. Infrared Phys. Terahertz magneto-optical spectroscopy in HgTe thin films. Optics in stratified and anisotropic media: 4x4-matrix formulation. Infrared and microwave magnetoplasma effects in semiconductors. B 72 , B 89 , Heavy-light hole mixing at zinc-blende interfaces under normal incidence.\nB 54 , — Tunable spin helical Dirac quasiparticles on the surface of three-dimensional hgte. Ab initio study of topological surface states of strained HgTe. EPL , Single valley Dirac fermions in zero-gap HgTe quantum wells. Spin-helical transport in normal and superconducting topological insulators. Status Solidi b , — Spatially resolved photocarrier energy relaxation in low-doped bulk GaAs. B 86 , Discovery of a Weyl fermion semimetal and topological Fermi arcs. For the camera resolution the effective cell size of the camera is the figure of merit.\nThe eventual resolution of the imaging sensor is determined by the dimensions of the individual photo-sensitive elements relative to the image projected onto the imaging array in the microscope system. In order to match or exceed the optical resolution of the objective lens and to preserve the spatial resolution of the objective lens in the resulting MO image, the sampling interval of the camera sensor array has to be at least twice the maximum spatial frequency of the sample.\nThis relation is given by the Nyquist criterion [ , ]. The camera sensor must be able to sample at intervals equal or less than half the resolution of the microscope. A comparison of the change of resolution for a captured image depending on the camera's cell size is given in figure Corresponding data on the achievable spatial resolution from typical objective lenses is given. Curves for different level of binning are included.\nFor values of NA of the different objectives see table 2. A sensor cell size of 6. For low magnification images and for the chosen properties of camera and objective lens, the best achievable resolution is limited by the camera, and not the NA of the objective lens. Without binning and below a threshold of about 50 times in magnification, the actual image resolution is determined by the camera property and not by the objective lens.\nAdapting the microscope setups for temperature dependent imaging is straightforward. Cryostats, for low temperature imaging, and heating stages, for the imaging at higher temperatures, can be integrated into the setups. Low temperature applications include the imaging of flux penetration into type-II superconductors with ferrimagnetic MO indicator films [ — ] see also section 8 , the imaging of domains in magnetic semiconductors [ — ], and exchange coupling phenomena in magnetic multilayers [ — ].\nAlso magnetic phase transitions at low temperature [ — ] and around room temperature [ ] are of relevance. High temperature observations deal with crystallization processes in soft magnetic nanocrystalline materials [ , ], again with exchange bias phenomena [ ], and the change of magnetic properties with temperature in hard-magnets [ ]. Other applications include for instance rock magnetism [ ] for elevated temperatures, and the investigations of structural phase transitions [ , ] for low temperatures. One obstacle for the use of heating stages and cryostats is related to the use of viewports to optically access the samples.\nTwo in principle different approaches are used. In one case, the imaging is performed through an optical window between the magnetic object and the objective lens. With that approach figure 13 a , the use of long-distance objective lenses with an optical correction for the viewing window thickness is required at least for high NA objectives. By this, highest spatial resolution is not possible to achieve. In another approach figure 13 b , the objective lens is integrated into the cryostat or heater and the viewing window is between the objective lens and the microscope.\nRegular high NA objective lenses can be used. Yet, the application of oil immersion lenses is excluded. For both principle variants the viewing window must be stress-free in order to not alter the polarization state of light. A complete integration of electromagnet and focusable objective lens inside a vacuum chamber for temperature dependent measurements has been used in [ ].\nCentral aspects of imaging systems for temperature dependent imaging. The sample is mounted on a cold or heating finger. The lens is integrated into the cryostat, respectively heating chamber [ , ]. Vibrational influences need to be reduced by mechanically decoupling or damping of the connected vacuum systems. Internal vibration isolation and a low thermal-expansion support structure help to reduce vibrations and drifts of the sample position. For the applications of external magnetic fields heaters and cryostats are equipped with an extended sample mount, permitting for the high magnetic field applications by allowing a close integration of magnetic pole-tips at the magnetic sample.\nOne of the utmost advantages of MO imaging over the majority of other imaging methods is the ability to visualize fast dynamic magnetization processes. However, different definitions of magnetization dynamics exist, ranging from femtosecond processes for ultrafast spin-dynamics, Landau—Lifschitz dynamics on the nanosecond time-scale to eddy-current dominated magnetization dynamics in the micro- to millisecond range for thick samples. Yet, creeping phenomena on the time-scales of seconds or more can be part of it. The whole range of time-scales can be covered by MO microscopy.\nDepending on the requirements of the experiment, different methods are applied to obtain the needed temporal resolution. A discrimination has to be made between single shot imaging and stroboscopic imaging techniques, the latter used for imaging of fast dynamic magnetization processes. Dynamics on time-scales of several seconds or even longer can be imaged directly and in real-time by MO microscopy. Of particular interest for long-term dynamic studies are magnetization relaxation processes as they occur in ultrathin magnetic films. An overview on certain aspects of magnetization reversal studies by MO methods, including MO imaging of thermally activated processes, is given in [ ] and [ ].\nExamples of snapshot domain images from the reversal of magnetic single and multi-layers with perpendicular and in-plane magnetic anisotropy that display thermally activated effects [ — ] are depicted in figure Reprinted with permission from [ ]. Copyright by the American Physical Society. Magnetization dynamics at the kHz range can be imaged by means of stroboscopic imaging using gated image intensifiers as demonstrated firstly for the observation of garnet domains using the Faraday effect [ ]. This method has been revived for the imaging of eddy-current limited magnetization dynamics in magnetic core materials [ — ].\nFrom stroboscopic MO Kerr effect microscopy observations, the dynamic magnetization process on nanocrystalline tape wound cores is clarified. Of particular interest in these studies were magnetic excess losses, the related eddy-current driven magnetic domain wall refinement, and the repeatability of the magnetization processes. An exemplary image of such a measurement, displaying patch-like domain behavior, is displayed in figure 15 a. High and variable repetition rates and continuously adjustable time resolutions are possible with such imaging systems.\nThe coarse hexagonal capillary structure of the microchannel plate MCP image intensifier results in an effective reduction of spatial resolution. The use of a two-stage or three-stage MCP image intensifier can partly reduce that circumstance. Images with microsecond time resolution obtained by means of different techniques. At least partial repeatability of the magnetization processes is required for stroboscopic imaging. Single shot imaging of magnetization relaxation in exchange-biased perpendicular anisotropy thin films was realized by imaging with an arc flash lamp [ ].\nYet, the typical dependence of light intensity with time for the imaging with such schemes is strongly influenced by the long exponential decay of intensity of the illuminating light pulse.\nLog in to Wiley Online Library\nAn exemplary single shot image from an asymmetric magnetization reversal in an exchange-biased thin film with out-of-plane anisotropy is displayed in figure 15 b. A similar illumination scheme was used for the imaging of magnetic field induced transformations in magnetic shape memory alloys [ , ]. Single shot imaging of the magnetization reversal in a grain oriented electrical steel sheet, however, is also possible with a large field MO microscope see section 3.\nSome microsecond resolution is achievable by direct imaging at low exposure times with regular CCD-based cameras without the need of image intensifiers figure 15 c. Wide-field imaging on the nanosecond time-scale [ ] has been realized by similar ways as discussed in the previous section. Also here, time resolution is achieved by imaging with a gated image intensifier. The principal use of such a camera system for the imaging of magnetization dynamics in recording head writers in the nanosecond time range was demonstrated [ ].\nIn an alternative pioneering approach [ — ], using pulsed Q-switched ruby and gas lasers and in combination with gated illumination, a temporal resolution down to some nanoseconds is achieved. Stroboscopic wide-field imaging with mode-locked picosecond lasers has been used for investigations of magnetization dynamics of thin film elements on the micrometer length scale. Different techniques were applied, all relying on pulsed magnetic field applications with sub-nanosecond rise-times [ — ].\nIn the laser-based stroboscopic imaging schemes, time resolution is defined from the laser pulses. A continuous dc recording of the camera signal is applied. Nearly jitter-free time-resolved wide-field MO Kerr effect microscopy with picosecond time resolution and with phase-locked harmonic excitation is demonstrated in [ ]. Such a system allows for the direct imaging under a continuous microwave field excitation. By this the direct imaging of fundamental dynamic modes of magnetic domain and domain wall states in soft magnetic thick film elements becomes possible.\nDomain wall oscillations can be imaged directly and domain wall velocities can be extracted. The basic imaging setup is displayed in figure Stroboscopic time-resolved imaging setup consisting of a mode-locked laser as an illumination source, a standard MO microscope, and a GHz magnetic field excitation source. The mode-locked Nd:YVO 4 laser runs from the same clock as the rf signal generator, providing low jitter imaging conditions [ ]. The shown amplifier and the oscilloscope are optional.\nA magnetic rf-field is applied through a coplanar wave-guide. A phase-locked loop is used to synchronize the repetition rate of the passively mode-locked laser system to the reference clock signal, by constantly adjusting the laser cavity length, controlling its frequency and phase. With the clock synchronizer feedback system, a timing jitter of less than 0. The direct observation of magnetization processes up to several GHz excitation frequencies is possible with such a microscope system.\nIn general, picosecond time-resolved MO imaging is performed in a stroboscopic differential imaging mode with varying the phase between the rf field excitation and the imaging laser pulse. Two individual differential images are formed from the difference of two magnetization states at different time delays. By imaging in this manner, only alterations of magnetization become visible in the domain response images.\nExemplary data demonstrating the imaging of precessional magnetization response, the direct observations of nanosecond domain wall displacements and spin-wave generation from magnetic thin films samples are displayed in figure Despite the application of in-plane microwave field excitations, out-of-plane contributions of magnetization precession including dynamic magneto-static coupling between individual magnetic domains are imaged figures 17 a and b.\nPrecessional domain wall motion with out-of-plane magnetization components is seen in figure 17 c [ ]. The domain wall precession acts as a source for spin-waves within the central magnetic domains as seen in figure 17 d. The spin-waves propagate with 0. Moreover, the direct imaging of standing spin-waves at field excitations up to several GHz is possible by the technique, an example of which is displayed in figure 17 e. Stroboscopic Faraday imaging of sub-picosecond processes using femtosecond lasers is demonstrated in [ ]. No saturated background image see also section 4.\nA pump-and-probe all-optical switching experiment is applied to a ferrimagnetic GdFeCo thin film sample. Exemplary data of the evolution of magnetization during the all-optical switching event is displayed in figure The images represent a map of individually determined MO Kerr angles of polarization.\nA general challenge of MO Kerr or Faraday imaging is the obtained low magnetic domain contrast as a result of the weak nature of the MO effects. In practice, the realizable magnetic domain image quality is determined by the achievable signal-to-noise ratio. For a given plane of incidence and a given magnetic material, the SNR is mainly influenced by two additional experimental parameters. Firstly, for the set MO sensitivity the overall MO contrast needs to be optimized by proper setting of the polarization optics.\nThis is in first approximation done by correct setting of the analyzer angle in order to obtain the optimum SNR. Secondly, the MO or domain contrast is amplified and image noise is reduced by digital image processing, by which clear and low-noise domain images are produced. For a given setting of illumination, the MO contrast is mostly determined by the analyzer settings, meaning the angle of analyzer rotation from maximum extinction in the optical microscope path. For digital imaging applications, the figure of merit is the SNR of the captured domain image with a variation of magnetization along the sensitivity direction.\nIt represents the ratio of the measured light signal to the combined noise of different origin. Unwanted image signal components originate from the used electronics and from variations of the incident photon flux. Common sources of noise in a digital imaging system are therefore photon noise, dark noise, and read noise [ ].\nDark noise and read noise are directly determined by the digital camera system. The overall SNR for a digital imaging system can be approximated by. D is the dark current value and N r denotes the read noise [ , ]. B is the number of binned camera pixels. Subsequently, we will focus on the regime, where photon noise is dominating and other noise sources are not relevant, thereby neglecting very short exposure and integration times. In most cases will be valid. The first term in the equation is defined by the used illumination and camera settings.\nThe SNR can be increased by integrating or averaging over time, using a high quantum efficiency digital camera and binning. The variation of the overall photon energy has a small contribution. The second term is determined by the analyzer setting and the strength of the MO effect. By optimization of the analyzer's uncrossing angle, maximum SNR is obtained. The points of best SNR are indicated. Two main conclusions become obvious from the shown modelling results. However, the reduction of SNR is relatively low. The relevance of such calculations for applied MO microscopy should be treated with care.\nYet, the shown general dependencies are in agreement with results from experiments. Fast image processing provides the basis of state-of-the-art MO imaging. By digital image processing techniques such as digital Fourier filtering [ , ], real-time background subtraction, and averaging of MO signals improved quality magnetic domain images became practical.\nDigital image processing in real-time was firstly applied for low-contrast imaging in medical [ ] and biological [ — ] imaging applications and was later adapted for the use in magnetic domain imaging. Many different schemes for the improvement of MO signals are conceivable. The main objective is obtaining a high contrast magnetic signal, in which non-magnetic contrast contributions are eliminated. Most of the applied routines for contrast enhancement are based on differential imaging of magnetic states. With alterations of optical polarization or of the magnetic settings purely magnetic high contrast response images are acquired.\nSNR is improved by averaging multiple image frames. Naturally, gain and offset to the digital camera sensor can be applied in order to achieve a maximum camera contrast [ ]. Imaging by alteration of the optical polarization conditions relies on a modulation of polarization [ — ] or on differential imaging of the same magnetic state imaged with two different analyzer or polarizer settings in the microscope. Practically, better imaging quality is obtained by changing the state of polarization of the illumination settings, as compared to the analyzer settings.\nFor this kind of differential imaging, no alteration of the magnetization state is needed. This makes it most applicable, where an alteration of magnetization is not feasible. For instance, it is applied for domain observations of permanent magnet materials [ — ] or where a modification of the magnetic state of interest is unwanted [ 22 ]. An alternative method relies on the fitting of the local sensitivity function from multiple MO images [ ] see figure An exemplary set of two raw magnetic images taken from an extended soft magnetic metal film using two different polarization conditions is displayed in figures 20 a and b.\nObtaining both images under different conditions of polarization, an inversion of the MO contrast is achieved. After subtracting the images, the weak magnetic domain contrast can be amplified and a clear high contrast magnetization domain map is achieved figure 20 c. All images are obtained by averaging over 32 image frames.\nThe principle polarizer settings are indicated. In the standard approach, a background image that displays no or an averaged out magnetic signal or a homogeneous magnetic information figure 20 d is acquired, which is then subtracted from the magnetic domain pattern of interest [ — ] figure 20 e. The resulting MO domain image is displayed in figure 20 f. Most of the images shown in this article are acquired by this technique. Real-time and high contrast domain imaging is achievable by this method. In an alternative approach neither of the MO images is acquired in a homogenous state of magnetization.\nDifferential images are obtained from variations of magnetization with a small magnetic stimulus [ 27 , , , ]. The method of differentiating of slightly altered domain states has gained renewed attention for the imaging of small nanostructures, especially for the investigation of magnetic field- and current-induced domain wall motion in magnetic nanowires [ — ].\nLikewise, the same approach is used for time-resolved stroboscopic imaging schemes that rely on repeatable magnetic events [ — , ]. Variations of the imaging scheme, including more complicated imaging sequences are discussed in [ ]. In imaging techniques relying on magneto-optical indicator films, a differential image in the indicator film is acquired by removal of the magnetic sample of investigation, keeping the indicator film in place [ ]. For samples with locally varying reflectivity, however, the total MO intensity difference between images for positive and negative magnetization saturation can be uneven.\nThe Effects of A Magnetic Field on Radiation: Momoirs by Faraday, Kerr and Zeeman\nExamples are samples with surface topography, different or locally changing roughness, and optically anisotropic polycrystalline large grain materials. The local effective MO sensitivity variation is then superimposed on the magnetic domain image, by which an interpretation of the magnetization distribution is hampered. Related to quantitative domain imaging, the procedure applies only to MO images obtained for a single sensitivity direction.\nA signature of such an imaging error would be a lateral inhomogeneity in MO intensity, the difference between images for positive and negative magnetic saturation along the sensitivity axis. The thus effective non-uniformity of the MO sensitivity will be superimposed on the magnetic domain image. Various examples together with improved MO images are given in [ ]. Surprisingly, the technique is not used routinely so far.\nThe method can also be applied for correction of uneven illumination in not properly set MO microscopes. Instabilities in the optical illumination source and mechanical instabilities reduce the quality of the results. Magnetic sample or microscope movements of only a few nanometers lead to a degradation of the MO image.\nHence, a very steady intensity illumination source and a mechanically stable microscope are a prerequisite for all differential imaging schemes. Mechanical instabilities can be partly compensated by digital image cross-correlation, by which an improved alignment of the background and the domain state image is achieved. With sub-pixel digital image alignment, image drifts with accuracy below one nanometer can be compensated, an example of which is shown in figure The technique can be applied after imaging, but also in situ and in real-time.\nKlug, Kiel University. Despite its advantages for the understanding of magnetization patterns of complicated magnetic domain structures, quantitative magnetic MO microscopy is a technique that is hardly applied for magnetic materials investigations. It is based on the use of a complicated calibration scheme involving multiple calibration images, by which the angular MO sensitivity function in the MO microscope is determined [ — ] experimentally. Similar vectorial mapping of magnetization can be obtained by other domain imaging techniques like spin-polarized scanning electron microscopy [ — ] and by differential phase contrast imaging DPC with Lorentz microscopy [ , ].\nRestrictions of the MO microscopy approach lie in the presumed sinusoidal MO sensitivity function. Existing errors can partly be eliminated by including a quadratic Voigt term in the fitting of the sensitivity functions [ ].\nExamples of applied quantitative MO domain imaging include low magnetic anisotropy ribbons [ ] and mixed anisotropy hybrid magnetic property thin films [ ], where an easy domain interpretation is not feasible. Magnetization maps from thin films with orthogonally laterally distributed magnetic anisotropy axes are displayed in figure 22 see also [ ] and section 7. Real-time imaging with vector information of the magnetic domains is not possible with this imaging technique.\nThe corresponding magnetization vector distribution is displayed in b. Multiple wavelength imaging schemes are used routinely in life science microscopy investigations [ — ]. An MO imaging approach for the simultaneous imaging of multiple magnetization components based upon a dual-wavelength approach is demonstrated in [ ]. In this imaging scheme two imaging paths are merged in the microscope. For the demonstrated implementation of the technique two fiber-coupled high power LEDs with different optical wavelengths are applied concurrently for illumination.\nAn individual independent positioning of illumination settings for both light sources, like oblique and orthogonally aligned planes of incidence, is possible by this. Accordingly, illumination conditions for simultaneous s- and p-mode longitudinal MO sensitivity can be obtained. The imaging beams are coupled into the illumination light path through a wavelength sensitive dichroic mirror figure 23 a , compare to figure 9.\nOther arrangements are possible. Most important, in the reported scheme, the reflected light is yet again divided into two separate light paths that are directed onto two synchronized high sensitivity microscope cameras, by which two domain images under different MO conditions are ultimately obtained. In an alternative arrangement an image splitter is used, which enables recording of MO images simultaneously with one camera system figure 23 b.\nAlternatively, by sequentially imaging and synchronizing the individual LEDs with the exposure of a regular camera system, similar results can be obtained, but with only nearly simultaneous imaging. Using an image splitter the primary image gets divided into two separate images.\nFor the complete illumination and observation scheme, including the conjugate image planes IP and aperture planes AP , see figure 9. In general, the use of a divided optical illumination and observation path allows for the direct extraction of different complementary magnetic information. The multi-channel image approach permits complicated imaging schemes, like combination images involving multiple applied MO sensitivity conditions, including mixed Kerr and Voigt imaging and quantitative evaluation from one magnetic pattern.\nSo far imaging with only one pair of images was possible [ 2 ]. An illustrative example of an advanced measurement involving four complementary MO images of a single unaltered domain structure from an epitaxial iron film is displayed in figure Concurrently obtained d diagonally aligned Kerr and e Voigt image after change of the fiber output alignment. The corresponding illumination arrangements in the back focal plane of the objective are indicated.\nImaging: R. Malik, Kiel University; sample: D. From such an analysis, the magnetization distribution of samples with complicated magnetization behavior can be derived and magnetic domain features remaining hidden with standard single sensitivity domain imaging techniques are directly exposed. In particular, the biggest advantage of the multicomponent measuring scheme is the possibility of real-time imaging of multiple components, by which, among other potentialities, the quantitative imaging of magnetic domain in motion becomes realizable.\nThe application of real-time magnetic vector imaging to complicated domain processes in stressed magnetostrictive films for magnetoelectric sensor application is first demonstrated and used for the understanding of the noise mechanism in magnetoelectric composite sensors [ ] figure Magnetization reversal in an amorphous magnetostrictive FeCoSiB layer. The orientation of the applied magnetic field is horizontal. Yet, dual beam—dual sensitivity imaging is not limited to quantitative evaluation of magnetization.\nOther embodiments of imaging include the separation of in-plane and out-of-plane magnetic contrast in oblique plane of incidence MO microscopy and layer selective magnetic domain imaging. By local ion irradiation regions with locally varying magnetic properties are obtained similar to [ ]. Shown is a generated square element with oblique plane of anisotropy, displaying a mixed longitudinal and polar MO contrast figures 26 a and b , surrounded by a matrix with pure in-plane anisotropy.\nBy addition and subtraction of MO images obtained with opposite oblique incidence, pure polar figure 26 c and pure longitudinal in-plane sensitivity figure 26 d images are obtained. The latter is not possible by other means in MO microscopy see also section 2. In d only in-plane components of magnetization are visible. The settings of illumination are indicated in a and b. Experiments together with P. Mazalski and A. Maziewski, University of Bialystok. Moreover, the dual imaging scheme can be applied to the simultaneous imaging of individual layer magnetization in multilayer stacks.\nDisplayed in figure 27 are two domain images from the same structure, which are recorded simultaneously in a dual image arrangement. Only one single digital camera image with two domain images is shown. Clearly, two dissimilar domain patterns corresponding mainly to the top and bottom layer magnetization, respectively, are distinguished. Magnetic domain images obtained simultaneously with different depth sensitivity by double wavelength microscopy using an image splitter.\nThe same plane of incidence is used. Malik [ ]. In conclusion, using two imaging paths, domain images with different sensitivities are recorded simultaneously. Quantitative domain imaging, layer selective magnetic domain imaging in multi-layered thin film structures, as well as the separation of in-plane and out-of-plane magnetization components in film structures with out-of-plane and in-plane magnetization components are now possible. An extension to time-resolved imaging techniques is straightforward. Even being a standard method in optical microscopy, dark field imaging is almost never used for MO microscopy applications [ , ].\nYet, dark-field MO imaging based on the Faraday effect is demonstrated for the investigations of Bloch lines and conically shaped bubble domains in transparent epitaxial ferrimagnetic garnet films [ — ]. With an inclined plane of incidence using a high aperture condenser lens together with a low aperture objective lens, diffractive MO contrast images of the magnetic domain boundaries and internal domain wall features are obtained from diffraction.\nWhile the directly transmitted light is omitted, the MO image is produced purely from the diffracted light. Despite recent advances in diffractive MO magnetometry on periodic magnetic nanostructures [ — ], dark field MO imaging in reflection remains untested.\nIn general, imaging of a complete magnetization loop with varying magnetic field H ext by MO microscopy provides a large amount of microscopic information, which is usually viewed as a series of sequentially obtained magnetization maps M x , y , H ext. From this data a regular magnetization loop can be derived, by which the data is reduced to its most essential core. However, valuable information is lost thereby. Only a few attempts have been made to bridge that gap. In [ ] a method of representation of multiple images is introduced that allows for compact representation of magnetization reversal information.\nAnalyzing and plotting the information obtained from histograms of individual reversal maps, the information of fractions of different kinds of domains and magnetization components is gained. In another attempt [ ] the reversal of magnetization in single quasi 1D magnetic stripes with H ext is analyzed and the data is presented in a 3D map of the magnetic reversal process See also figure 17 d for a similar approach for time-resolved imaging data of spin-wave propagation from a single domain.\nExemplary domain images of the magnetic reversal of the magnetostrictive phase of a magnetoelectric composite are displayed in figure 28 a. A map of the complete reversal extracted from line-plots for the individual field steps of the overall reversal process is shown in figure 28 b. Decreasing the magnetic field from saturation, first narrow domains develop which coarsen with decreasing field.\nAt a certain threshold field, a reorganization process takes place and wide domains instantaneously nucleate. In the reversed field, narrow domains penetrate from the edges and a continuous domain refinement [ ] takes place. All this can be followed from the presentation displayed in figure 28 b. Plotting the histogram in a similar way as in [ , ] figure 28 c , the development of multiple domains, magnetic domain coarsening, and the continuous domain refinement can be understood in a similar way.\nAs the MO sensitivity direction is chosen perpendicular to the applied magnetic field, a hysteresis loop cannot be extracted. However, the evolution of the transverse components of magnetization in the individual domains with field can be tracked. The magnetic field H ext axis is displayed on the right.\nThe shown example demonstrates only some of the possibilities of presenting large datasets of domain imaging data. Fourier components or the application to continuous quantitative imaging are other possible ways for data analysis. As set out, MO microscopy offers a great variety of ways for the investigation of magnetic materials. MO microscopy is one of the most versatile techniques to image magnetic domains and magnetization processes. The ability to observe the magnetic domain structure is especially important for the understanding of the origin of magnetic properties.\nAlso, the performance of magnetic devices correlates with the spatial distribution and time evolution of the magnetization. Significant results in fundamental science, applied physics, and engineering have been obtained by MO microscopy. An incomplete overview of data obtained from various material systems on different length scales is shown in figure Magnetic domain images from electrical steel with a nearly perfect and b misaligned orientation of grains samples: R.\nMagnetic domain patterning by ion irradiation in g , h extended FeCoSiB layers and i exchange-biased samples [ ]. Shown are examples from grain-oriented electrical steel figures 29 a and b , see also section 7. Stress relaxation, occurring at the edges can lead to an avoidance of closure domain structure [ ], closure domains are repelled from the edges in positive magnetostrictive tensile stressed Ni 45 Fe 55 films figure 29 f.\nMagnetooptics - AccessScience from McGraw-Hill Education\nAn alternative way of patterning by local ion irradiation leads to domain formation without the need of magneto-static energy contributions figures 29 g — i as will be discussed in section 7. Low magnetic anisotropy leads to complicated domain structures in soft magnetic CoFe-based films [ , ] as seen in figures 29 j and k.\nSoft magnetic thin films with out-of-plane anisotropy display different types of magnetic stripe domains [ , ] figures 29 l and m , the characteristics of which can be studied by MO microscopy see also figure 11 a. Magnetic domain formation due to nucleation and incomplete annihilation strongly influences the magnetization processes in perpendicular anisotropy thin films [ ] figure 29 n.","domain":"optical_engineering"}
{"url":"https://www.mltest.com/index.php/steelmetal/universal-testing/576-le-05-laser-extensometer","date":"2024-04-15T09:16:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00727.warc.gz","language_score":0.898698627948761,"token_count":263,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__54766472","lang":"en","text":"The Model LE-05 Laser Extensometer is a precision, wide range instrument specifically designed for accurate, non-contact measurement of strain on various materials under tensile or creep conditions. The instrument is completely self-contained. It is housed in a single, compact enclosure and uses the latest state-of-the-art laser diode technology for high performance, low maintenance operation.\nThe Model LE-05 includes a digital display, 4-button keypad, analog output, and an RS-232 computer interface, all of which are located on the rear panel. Instrument operation can be local from rear panel or remote via the RS-232 interface.\nDesigned to handle a wide range of strain measurement applications, the Model LE-05 is extremely simple to operate. It uses a unique scanning laser beam technique to measure elongation entirely from one side of the specimen. This approach eliminates the need for a separate scan receiver unit mounted on the opposite side of the specimen. However, for special applications requiring transmission around or through a specimen, alternative methods can be implemented. In addition, a “high elongation” version of the Model LE-05 is also available for measuring the strain of elastomeric materials.\n1 Over optimum displacement range at calibrated target distance.","domain":"optical_engineering"}
{"url":"https://sureviewsystems.com/integration-update-sightlogix-simplifies-sureview-integration/","date":"2022-11-29T01:17:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710684.84/warc/CC-MAIN-20221128235805-20221129025805-00822.warc.gz","language_score":0.8894864916801453,"token_count":378,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__61242821","lang":"en","text":"SightLogix, the smart thermal camera leader for detecting intruders with high accuracy in the outdoors, has released a new, web-based configuration software called WebConfig that makes it even easier to integrate SureView’s Immix software with SightSensor detection cameras.\n“Our collaboration with SureView provides a rapid, proactive response for managing security, and WebConfig enhances our integration by greatly reducing configuration time,” said John Romanowich, President and CEO.\nKey Immix features in WebConfig include easy-to-use drop-down fields for defining Immix settings, creating pre- and post-trigger video clips that are automatically sent to an Immix-based monitoring center along with live video, and testing connectivity with one-click alarm simulations. WebConfig also provides a range of innovations to streamline the setup process, allowing users to calibrate cameras, configure key parameters and create accurate video analytic detection rules quickly and easily.\nAdditionally, every setting in WebConfig includes embedded mouse-over tooltips that explain each feature and their proper use.\nThe initial version of WebConfig supports SightSensor HD, the affordable thermal-visible detection camera announced last October. Future releases of WebConfig will support the entire SightLogix thermal camera line.\nYou can learn more about WebConfig at www.sightlogix.com/webconfig-software/\nAbout SightLogix, Inc.\nSightLogix makes smart thermal camera systems that protect outdoor sites, including assets in the energy, transportation, chemical, utility, communications, government and defense industries – as well as private, independent businesses around the world. Unlike video surveillance cameras that simply record video for review, SightLogix SightSensors automatically detect security violations in real-time to alert responders with full situational awareness. For more information, visit www.sightlogix.com.","domain":"optical_engineering"}
{"url":"http://www.jeannetteschaefer.com/why-should-you-choose-the-advanced-treatment-for-proper-eyesight/","date":"2020-06-01T18:51:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347419593.76/warc/CC-MAIN-20200601180335-20200601210335-00140.warc.gz","language_score":0.9515164494514465,"token_count":497,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__192692672","lang":"en","text":"Vision is important for many things such as for driving, for seeing, for reading and more. We cannot say that, all such people have good sight. There are people that may have short sightedness, long sightedness and other sight issues owing to playing games, watching the mobile screen for a long time and taking unhealthy foods. No matter, what could be the reason for your eye sight issues, but you have to correct it anyway. Why do not you go with the laser treatment? Laser treatment is an advanced technology that is now used to correct many eye diseases. If you take laser eye treatment, you do not have to wear the contact lenses or glasses at all for your vision issues. Ahead taking the laser eye treatment, you have to know about what is it actually. The laser eye treatment uses the highest quality and accurate laser called Excimer. This laser is used to sculpt the corneal tissue of the eyes to assist the light rays from the laser to refract precisely on the retina of the eye. This method of treatment helps to remove many eye diseases to the point. This is why you are asked to undergo the laser treatment. If you have a good sight, then you can drive your car to the point without worrying about anything.\nMyths that you need to know about the modern sight treatment\n- The laser surgery for eyes will surely let you be free from the issues and inconveniences that you were going through. Still, it is important to know some facts about the laser eye treatment.\n- You have to determine whether or not you are a suitable candidate for the laser eye treatment. The right candidates for the laser eye treatment are the ones that suffer from refractive errors such as astigmatism, myopia and hyperopia. If you suffering from any of these issues, you can reckon taking the laser eye treatment.\n- The conditions like short sightedness, long sightedness, blur vision and other vision impairment can only be treated by the laser eye treatment. This shows that, the laser eye treatment is clearly intended for treating the issues that demand people to wear either glasses or contact lenses.\n- You will not be guaranteed a 20 out 20 vision with the laser eye treatment, but you can see the dramatic changes in your life. After the laser eye treatment, the person is able to run a normal life without the assistance of lenses or glasses.\nYou should know the laser eye surgery cost ahead, taking the treatment.","domain":"optical_engineering"}
{"url":"https://allianceanalytical.co.za/product/scilogex-sci-v1000-spectrophotometer-3251000nm/","date":"2022-01-17T15:20:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320300574.19/warc/CC-MAIN-20220117151834-20220117181834-00129.warc.gz","language_score":0.7570080161094666,"token_count":293,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__248742816","lang":"en","text":"SCILOGEX SCI-V1000 Spectrophotometer 325~1000nm\nSCILOGEX SCI-V1000 Spectrophotometer 325~1000nm, with Tungsten Lamp, 4 x 3.5ml glass square cuvettes, USA plug, 110/220 V, 50/60 Hz, 80 W\nSCI-V1000 Spectrophotometer Features:\n- User Friendly Operation and Information Rich LCD Display: The large 128 x 64 dots, backlit LCD screen with adjustable brightness control displays a large array of data also in graphical format.\n- On-Board Data Storage: The System can save the test results, up to 200 groups of data and 200 standard curves in the RAM memory.\n- Data can be restored after a sudden power failure.\n- Auto setting wavelength: To set wavelength automatically to calibrate the system through arrow keys to avoid operation errors.\n- Automatic Switching: Tungsten & Deuterium lamps switching is automatic. Selectable from a wavelength range of 190 to 1100nm.\n- Large sample compartment: To accommodate 5–100mm path length cuvettes with optional holders. A variety of optional accessories are available.\nThe spectrophotometer is an indispensable instrument routinely used in colleges, universities and research institutes for quantitative analysis in fields including biotechnology and quality control of new material developed. V-Series provides high resolution, high performance and excellent stability","domain":"optical_engineering"}
{"url":"http://qptermpaperwoie.du-opfer.info/human-eye.html","date":"2018-11-20T23:50:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746847.97/warc/CC-MAIN-20181120231755-20181121013755-00411.warc.gz","language_score":0.9148430824279785,"token_count":615,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__28919825","lang":"en","text":"A new computational system effectively mimics the natural way the human eye corrects focus, specifically while viewing objects that are closer. Anatomy and physiology of the human eye, optical illusions, eye conditions and diseases, eye surgery also light, optics, color, rods and cones, vision tests. Adjustable focal length lens (os-8494) 12 lenses retina screen pupil aperture foam lens holder human eye model without lens experiment manual. 5 days ago new research suggests the human eye and brain are capable of seeing ghosted images, a new type of visual phenomenon that scientists.\nWebpage for the human eye bank at st michael's hospital, toronto, ontario, canada. Read about the first robot-assisted eye surgery on a human, proving that robotic surgery is just as effective as those performed by humans,. A tour of the eye with an explanation of how we see in normal life is followed by a real life example of divers in the moken tribe in thailand whose eyes have.\nThe human eye is an organ which reacts to light and pressure as a sense organ, the mammalian eye allows vision human eyes help to provide a three. The human eye is sometimes referred to as the most complex organ in our body take care of your eyes with regular eye exams call westside. To cover content standards such as explain how the human eye sees objects and colors in terms of wavelengths educators have students create models of the. Abstract depth of focus of the human eye is determined by the loss of resolving power (visual acuity) with increase in out-of-focus blurring of the retinal image. The human eye is the gateway to one of our five senses the human eye is an organ that reacts with light it allows light perception, color vision and depth.\nZoologist dan-erik nilsson demonstrates how the complex human eye could have evolved through natural selection acting on small variations starting with a . We've put together 51 facts about your eyes that will help you realise just how remarkable they truly are: 1 the human eye works just like a. Click on various parts of our human eye illustration for descriptions of the eye anatomy read an article about how vision works.\nThe human eye is a complex organ that comprises the tear film, conjunctiva, cornea, aqueous humor, iris, ciliary body, lens, vitreous humor, retina, choroid,. Even as he verifies the human eye's ability to detect single photons, kwiat, an experimental quantum physicist at the university of illinois at. Such variety of models reflects the fact that all models are incomplete, since the real human eye contains both cornea and lens (anatomical), works with.\nPhysics the human eye and the colorful world - learn physics in simple and easy steps starting from basic to advanced concepts with examples including. Darwin was baffled by it christians see it as evidence of the divine will science ever unlock the secrets of the human eye. The human eye is an amazing organ webmd explains how it works.","domain":"optical_engineering"}
{"url":"http://www.ebaystores.com/Discount-Eyewear","date":"2020-02-28T06:40:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875147054.34/warc/CC-MAIN-20200228043124-20200228073124-00529.warc.gz","language_score":0.9671578407287598,"token_count":126,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__42708336","lang":"en","text":"Discount Eyewear is a family owned and operated full service optical proudly located in the United States.\nWe are a long standing established company with over 30 years experience in all areas of the optical industry. We have been selling to the Ebay community for over a decade and truly value each and every customer.\nAll of our lenses are fabricated locally in our own state of the art optical laboratory by highly qualified lab techs.\nWe pride our selves on providing eyewear at a price point that is affordable to everyone. Give us a chance to satisfy your optical needs and prove to you that savings are in sight!","domain":"optical_engineering"}
{"url":"http://www.ecmsnews.com/2018/04/27/scientists-integrate-optical-components-chips-designs/","date":"2020-06-02T19:42:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347426801.75/warc/CC-MAIN-20200602193431-20200602223431-00248.warc.gz","language_score":0.9244334101676941,"token_count":659,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__150347464","lang":"en","text":"A group of researchers from MIT, the University of California at Berkeley and Boston University have developed a technique for assembling on-chip optics and electronic separately, which enables the use of more modern transistor technologies.\nThe technique can be used by existing manufacturing processes and according to Amir Atabaki, one of the research scientists involved in the project, “The most promising thing about this work is that you can optimise your photonics independently from your electronics.”\nMoving from electrical communication to optical communication is an attractive proposition for chip manufacturers because it could significantly increase chips’ speed and reduce power consumption, an increasingly important advantage as chips’ transistor count continues to rise:\nThe integration of optical – or “photonic” – and electronic components on the same chip reduces power consumption. The optical communications devices currently on the market tend to consume too much power and generate too much heat to be integrated into an electronic chip such as a microprocessor.\nAtabaki and his colleagues have used a more space-efficient modulator design, based on a photonic device called a ring resonator.\n“We have access to photonic architectures that you can’t normally use without integrated electronics,” Atabaki explains. “For example, today there is no commercial optical transceiver that uses optical resonators, because you need considerable electronics capability to control and stabilize that resonator.”\nIn addition to millions of transistors for executing computations, the researchers’ new chip includes all the components necessary for optical communication: modulators; waveguides, which steer light across the chip; resonators, which separate out different wavelengths of light, each of which can carry different data; and photodetectors, which translate incoming light signals back into electrical signals.\nSilicon must be fabricated on top of a layer of glass to yield useful optical components. The difference between the refractive indices of the silicon and the glass is what confines light to the silicon optical components.\nEarlier work on integrated photonics involved a process called wafer bonding, in which a single, large crystal of silicon is fused to a layer of glass deposited atop a separate chip. The new work, in enabling the direct deposition of silicon on top of glass, uses polysilicon, which consists of many small crystals of silicon.\nSingle-crystal silicon is useful for both optics and electronics, but in polysilicon, there’s a trade-off between optical and electrical efficiency. Large-crystal polysilicon is efficient at conducting electricity, but the large crystals tend to scatter light, lowering the optical efficiency. Small-crystal polysilicon scatters light less, but it’s not as good a conductor.\nUsing the manufacturing facilities at SUNY-Albany’s Colleges for Nanoscale Sciences and Engineering, the researchers tried out a series of recipes for polysilicon deposition, varying the type of raw silicon used, processing temperatures and times, until they found one that offered a good trade-off between electronic and optical properties.\n“I think we must have gone through more than 50 silicon wafers before finding a material that was just right,” Atabaki said.","domain":"optical_engineering"}
{"url":"https://blog.nikonians.org/archives/2012/04/tamron_24-70mm.html","date":"2019-10-19T13:48:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986693979.65/warc/CC-MAIN-20191019114429-20191019141929-00291.warc.gz","language_score":0.8756111860275269,"token_count":164,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__143488286","lang":"en","text":"April 11, 2012\nTamron 24-70mm f2.8 with Image Stabilization\nTamron announces the world's first full-frame fast-aperture 24-70mm f2.8 zoom lens with integrated image stabilization. The SP 24-70 f2.8 Di VC USD features an entire gamut of the latest optical technology. It is equipped with the silent and fast-focusing Ultrasonic Drive, the extremely effective three-coil Vibration Compensation, moisture-resistant construction and a nine-blade diaphragm for smooth bokeh. The lens will be initially available in Canon mount in late April, with the Nikon mount to follow shortly thereafter. Hit the link for more details.\nPosted by covey22 at April 11, 2012 2:38 PM","domain":"optical_engineering"}
{"url":"https://catalogo.uniandes.edu.co/en/2016/Catalogo/Cursos/QUIM/1000/QUIM-1513","date":"2021-05-09T04:10:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988955.89/warc/CC-MAIN-20210509032519-20210509062519-00451.warc.gz","language_score":0.7597531676292419,"token_count":164,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__84748396","lang":"en","text":"QUIM-1513 Laboratorio de Fisicoquímica II\nTo have students successfully interpret IR, UV, and VIS molecule spectra using basic quantum mechanics methods. Course topics include: selected basics of quantum mechanics, UV and VIS spectra of simple atoms (H and He), IR spectra of simple molecules the vibration and rotation model, graduating from two atom molecules to more complex molecules, spectroscopy and chemical reactions, aspects of symmetry, group theory, reducible and irreducible representations, UV and VIS molecule spectra, the Frank-Condon principle, Fluorescence spectroscopy, lifetime of excited states, Raman spectroscopy, laser spectroscopy, high temporal or spectral resolution.\nInstructorFonseca Correa Rafael\nCatalog page for this course","domain":"optical_engineering"}
{"url":"https://glassjarsupplier.wordpress.com/2016/10/27/how-to-identify-crystal-glass-cup-and-glass-water-cup-2/","date":"2020-07-06T01:44:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655890092.28/warc/CC-MAIN-20200706011013-20200706041013-00436.warc.gz","language_score":0.7470008134841919,"token_count":169,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__67973806","lang":"en","text":"How to identify crystal glass cup and glass water cup?\n1, By hand.\nCrystal heat conduction performance is stronger than glass, so when you touch the crystal glass cup should feel cool than touching the glass cup.\n2, See the hardness.\nA Crystal cup up against the light rotation, you will find glass crystal clear, able to refract light. Ordinary glass no gloss, no refract.\n4, Listen to the sound.\nTapping or with fingers hit utensils, Crystal glassware to make crispy metal sound, while ordinary glass muffled sound.\nAdd: 3rd Floor,12 building,3rd Row,Xinfa ,Shajing Town,Shenzhen,China\nTel: +86 755 8282 1572\nPhone: +86 158 8965 3177","domain":"optical_engineering"}
{"url":"http://scitronix.co.il/lighttrans-international-gmbh/","date":"2023-12-04T05:46:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100525.55/warc/CC-MAIN-20231204052342-20231204082342-00213.warc.gz","language_score":0.8061961531639099,"token_count":162,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__95335727","lang":"en","text":"VirtualLab Fusion fast physical optics design software offers solutions for the entire development cycle of optical components using advanced simulation technology.\nDesigning optical components and complex systems, detailed modeling and performing tolerance analyses are examples of functions in which the VirtualLab Fusion software can dramatically optimize the design and modeling process.\nLightTrans International GmbH provides solutions, among others, for the following areas:\n- Light Shaping\n- Optical Metrology\n- Imaging Systems\n- Laser Systems\n- Virtual and Mixed Reality\nKey application areas for this advanced innovative software include:\n- Lightguide / Waveguide\n- Diffractive optics\n- Near eye displays\n- Microlens and Microcell Arrays\nYou are invited to learn more on the company’s website – https://www.lighttrans.com/","domain":"optical_engineering"}
{"url":"https://leica-fotopark.com/kr/signup","date":"2018-12-15T22:54:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827137.61/warc/CC-MAIN-20181215222234-20181216004234-00577.warc.gz","language_score":0.8170640468597412,"token_count":308,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__158293559","lang":"en","text":"I would like to be kept informed about services, products and Leica events that correspond to my fields of interest, and hereby consent to the registration, use and the future management of the details I have entered here by Leica Camera AG and its associated companies*. My consent applies only for purposes relating to market research.\nLeica Camera Ltd. (UK), Leica Camera SARL (France), Leica Camera AG (Switzerland), Leica Camera Inc. (USA), The Leica Store Washington DC, LLC (USA), Leica Store LA, LLC (USA), Leica Camera Japan Co., Ltd. (Japan), Leica Camera Asia Pacific Pte. Ltd. (Singapore), Leica Camera Singapore (Retail) Pte Ltd. (Singapore), Leica Camera Korea Ltd. (South Korea), Leica Aparelhos Ópticos de Precisão SA (Portugal),Leica Camera Comercial, Unipessoal Lda (Portugal) Leica Camera Italia s.r.l. (Italy), Leica Camera Australia Pty Ltd. (Australia), Sinar Photography AG (Switzerland), Leica Camera Frankfurt GmbH (Germany), Peter Coeln GmbH (Austria), Leica Camera Greater China GmbH (Germany, Hong Kong), Leica Camera Store Bellevue, LLC (USA), Leica Camera Hong Kong Limited (Hong Kong), Leica Camera (Shanghai) Trading Co. Ltd., Leica Camera India Private Limited (India), Leica Camera Malaysia SND. BHD. (Malaysia)","domain":"optical_engineering"}
{"url":"http://www.crispr-reagents.com/controlling-chemistry-in-space-and-time-offers-offered-scientists-and-technicians/","date":"2024-04-17T03:09:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817128.7/warc/CC-MAIN-20240417013540-20240417043540-00347.warc.gz","language_score":0.9242442846298218,"token_count":873,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__124424503","lang":"en","text":"Controlling chemistry in space and time offers offered scientists and technicians powerful tools for research and technology. developed a polymer that photochemically degrades upon absorption of one photon of visible light and shown its potential for medical SMI-4a applications. Particles formulated from this polymer launch molecular cargo and upon irradiation with blue visible light via a photoexpansile swelling mechanism. Intro Controlling chemistry in space and time with light offers verified enormously useful in biological study. For example optogenetics is considered the breakthrough of the decade and has revolutionized neuroscience.1 However current means of controlling cellular processes using light require tedious synthetic or genetic development of tools specific to each target. On the other hand light-responsive nanocarriers2 can be used to control the activity of any encapsulated bioactive molecule including proteins and nucleic acids without the need for chemical modification. Such versatile tools have enormous potential to advance fundamental understanding of SMI-4a physiological developmental and disease processes. Externally SMI-4a triggered launch of medicines from nanomaterials may also have exciting applications in the treatment of disease as it could allow precise Rabbit polyclonal to NR4A1. coordination with biological rhythms or disease activity. Since particles can be injected within the tissue of interest and remain localized inside a depot-like manner the pharmacokinetic profile of the encapsulated drug can be modified. Such an approach would minimize injections and harmful side effects while increasing therapeutic end result. Light-responsive systems useful must be highly efficient and capable of responding to electromagnetic radiation that can innocuously penetrate into cells. To date most photochemical systems do not fulfill such physiological requirements as the majority rely on UV light activation 2 3 which is both damaging to cells and does not appreciably penetrate cells. Systems making use of near-infrared (NIR) laser light by multi-photon methods which include two-photon excitation4 and upconverted UV light5 have been developed to sidestep these limitations. Unfortunately achieving adequate photocleavage of polymer to induce launch from nanoparticles by these methods currently requires prolonged irradiation at high laser powers which could lead to heat-induced damage of biological cells.6 The development of one-photon visible light-responsive carriers4c h i 7 signifies an attractive alternative to both one-photon UV- SMI-4a and two-photon NIR-responsive carriers for applications because it is several orders of magnitude more efficient than two-photon excitation 8 requiring much shorter irradiation times at lower capabilities and is less harmful to cells than UV light. Influenced by recent developments in the photo-uncaging field we synthesized a polymer that degrades upon one-photon absorption of blue visible light (polymer 1 Number 1 Plan S1) by incorporating a recently developed red-shifted photocage developed by Donato mouse model we demonstrate light-triggered drug launch from a subcutaneously implanted polymer SMI-4a 1 particle depot with blue visible light. Results and discussion Design light response and degradation mechanism In this work the propyloxy chain of the previously reported ANBP8 (2-(4��-(N N-dimethylamino)-4-nitro-[1 1 propyl carbonyl) photocage was elongated to yield the butane-diol derivative 2-(4��-N-dimethylamino-4-nitro-[1 1 butane-1 4 dicarbonyl (ANBB Number 1 ? 2 2 Plan S1). This changes facilitates polymerization and enhances the kinetics of photodegradation by placing the photolabile relationship directly in the polymer backbone (Number 1).4i 9 Like ANBP ANBB is photochemically active in hydrophobic environments. As previously reported the photochemistry of this class of photoresponsive molecules is strongly dependent on solvent and basicity.10 In water the photo-induced applications we examined the effectiveness of photochemistry after SMI-4a passage of light through hairless mouse pores and skin (thickness: ~0.45 mm) sandwiched between two glass slides (Number 4a S4). Polymer 1 solutions were irradiated with and without this cells filter in the beam path and the photoreaction kinetics were measured by UV-Vis absorption.","domain":"optical_engineering"}
{"url":"http://knoxqjaq776blog.blogdigy.com/eye-surgery-3295175","date":"2018-07-19T09:10:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590794.69/warc/CC-MAIN-20180719090301-20180719110301-00601.warc.gz","language_score":0.9568398594856262,"token_count":1308,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__69515868","lang":"en","text":"Eye Surgery has come to be a mainstream method of vision correction, and this article will certainly describe the benefits as well as drawbacks of three various techniques being offered to the clinical customer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and is an eye medical system which permanently corrects vision by removing a slim layer of the cornea. This procedure functions best on clients with moderate to high degrees of nearsightedness (nearsightedness), reduced to modest degrees of hyperopia (farsightedness) and astigmatism related to nearsightedness, as well as that have thick corneas. It is the most widely known surgical vision modification approach.\nPeople with regular eye sight see objects plainly because photos are brought into an appropriate centerpiece by the cornea as well as lens of the eye. Preferably, the cornea's curvature is evenly matched to its length in a typical eye. Individuals with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the things seen are not concentrated properly. LASIK adjustments corneal shape by specific elimination of corneal cells, and by doing so corrects the eyes' focusing power.\nThere are, nonetheless, dangers to LASIK eye surgical treatment.\nThere is a remote opportunity of full loss of vision. If this takes place, it is generally due to the fact that the patient had a pre-existing problem which ought to have averted the surgical treatment in the first place, such as pregnancy, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with large students are also bad prospects for LASIK. Dry eye disorder will certainly be exacerbated by this treatment.\nA couple of patients complain that they completely see \"ghost\" pictures, have obscured vision, reduced contrast and also negative evening vision. When LASIK wased initially presented, 5% of clients had post-operative complaints; nevertheless, improvements in the procedure have actually triggered this rate to go down to less compared to 1% if LASIK is executed by competent specialists and individuals are appropriately screened before surgical treatment. If troubles do happen, they can typically be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical procedure since 1998. While there are a lot of pleased people, there are nevertheless no long term researches regarding its impacts. Understand the constraints and also the risks of LASIK eye surgical procedure before you sigh for the procedure.\nThough less popular, these small implants can improve vision in patients with light to moderate myopia without the risk of irreversible eye damages intrinsic in the cells removal method of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter shape. Though somewhat much less precise than LASIK, they are removeable as well as changeable, so if the client has an unanticipated over- or under-correction, the dental implant can be gotten rid of and also one more of a various size inserted to obtain the desired correction. The implants are located beside the cornea, so the main aesthetic click this site location is completely undamaged and also undamaged, and the stamina of the cornea is undiminished, making it a much better choice for pilots and also those who engage in get in touch with sporting activities where eye injury is a possibility.\nIntacs are unsuitable for extreme myopia as well as more than minor astigmatism (1.00 diopters), as the cornea can just be extended so far. If the Intacs are eliminated, vision go back to its preoperative degree. Apart from vision improvement, Intacs are also used to treat keratoconus.\nIntacs are FDA approved as well as Ten Years researches have actually disclosed no major troubles with Intacs as well as very few patient complaints; however, since the treatment takes more training than LASIK, there are fewer eye surgery clinics supplying it. Nevertheless, the Intacs internet site gives a list of practitioners in each state, as well a couple of in Canada, Europe and also Mexico.\nSince lots of people do not intend to risk LASIK and Intacs could not assist those with serious vision problems, intraocular lens implants (IOL) are a new alternative accepted by the FDA in 2004 to remedy moderate to serious nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the sort of lens implant utilized to recover vision complying with cataract eye surgery.\nThe new IOL, called the Craftsmen, is planned for only patients who have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not replace the all-natural lens, but is put in front of it. The main problem located with the implant was the steady loss of endothelial cells in the corneas of individuals that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are vital in maintaining the cornea clear. A three-year study showed a constant consistent loss of endothelial cells of 1.8 percent a year. Now, nobody could forecast whether this loss will certainly proceed at the very same price forever, or perhaps its impact on corneal function.\nTo minimize long-lasting effects of the gadget on the corneal endothelium, the FDA is calling for that the new lenses be identified to define that they should only be implanted in people whose corneal endothelial cells are thick sufficient to withstand minor cell loss.\nExtra severe issues were few: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is calling for Ophtec to perform a five-year follow-up survey of its go to this website implant patients to better analyze the post-surgical occurrence of cataract growth, retinal detachment as well as other ophthalmic conditions.\nThe Craftsmen lens is meant to be a long-term implant.Though it could be eliminated surgically, vision might not always go back to just what it was before getting the lens. Because it does not impact astigmatism, people with this trouble might still require glasses.","domain":"optical_engineering"}
{"url":"https://aintfoundagoodtitleblog.wordpress.com/2015/01/17/lens-flare-and-contrails-photography/","date":"2017-04-24T19:05:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119782.43/warc/CC-MAIN-20170423031159-00165-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9635621905326843,"token_count":121,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__311904604","lang":"en","text":"Sometimes strange things happen.\nI rather quickly concluded that I was not going to easily get a good picture of a flying Trumpeter Swan with a $25 800 mm manual focus, manual stop down lens. So I started to look at the local Craig’s List, eBay and other sources for a used lens that was auto focus and went out to around 300 mm. Here it is, another $25 lens.\nOut of the new lens and camera combination came this interesting shot. I put the swans in the camera. Everything else got in the camera by itself. Sometimes strange things happen.","domain":"optical_engineering"}
{"url":"http://forums.vr-zone.com/singapore-lobang-hub/2908603-rivbos-multifunction-sports-sunglasses-12-1-package-includes-5-sets-lenses-d.html","date":"2015-01-30T17:02:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-06/segments/1422115856115.9/warc/CC-MAIN-20150124161056-00026-ip-10-180-212-252.ec2.internal.warc.gz","language_score":0.9089472889900208,"token_count":171,"dump":"CC-MAIN-2015-06","global_id":"webtext-fineweb__CC-MAIN-2015-06__0__151939934","lang":"en","text":"Rivbos Multifunction Sports Sunglasses are the ideal companion for various outdoor activities. Whether you're into sailing, cycling, running, or just the casual stroll in the park, you'll surely find a Rivbos lens to match your vision needs! The Dark Polarized lenses filter out unncessary glare from reflected surfaces, protecting your eyes from too much light that can cause damage to the retina. Hiking in the early morning with mist still clinging around the hiking trail? Snap on the Light Blue lens to enhance optic resolution and become safer in your walks. Cloudy weather bringing you down? Use the Rivbos transparent colourful optic lens. Cycling or driving on a very sunny day? Try the colourful optics lens which absorbs ultraviolet and infrared rays for better vision. Travelling at night? Go for the yellow lens to enhance light intensity for better visibility.","domain":"optical_engineering"}
{"url":"https://www.psblaw.com/2012/06/audi-tries-new-rear-facing-camera-tech-in-le-mans-race-car/","date":"2021-09-18T07:00:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056348.59/warc/CC-MAIN-20210918062845-20210918092845-00194.warc.gz","language_score":0.9443769454956055,"token_count":267,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__50432420","lang":"en","text":"Concept cars displayed at auto shows commonly omit a standard, time honored safety feature: the rearview mirror. In high tech concept cars, digital cameras and displays meant to replace rear and side view mirrors have become a standard innovation, despite the fact that the United States government has not yet approved any such safety feature for public roadways. Safety guidelines mandated by the United States Department of Transportation and National Highway Traffic Safety Administration do not currently allow automakers to manufacture vehicles with digital displays in place of the required mirrors for use on state highways and city streets, but Audi has begun employing the technology in race cars, vehicles that are exempt from the federal safety requirements set forth for consumer passenger vehicles. The automaker’s most recent prototype for its R18 Le Mans racing car has been equipped with a digital rear facing video camera, protected by carbon fiber housing and affixed to the vehicle’s rear tail fin. The camera is linked to an active matrix organic light emitting diode (AMOLED) screen, which allows for a view of the vehicle’s rear inside of a cockpit that is completely closed off except for its windshield. The mid engined R18 Le Mans racing car does not have space to accommodate a rear window, so the new Audi prototype would offer Le Mans drivers their first glimpse of the road behind them.","domain":"optical_engineering"}
{"url":"https://vkoofashion.com/products/classic-aviator-polarized-sunglasses-for-women-men-metal-frame-spring-hinges-with-white-temple","date":"2023-04-02T06:05:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950383.8/warc/CC-MAIN-20230402043600-20230402073600-00179.warc.gz","language_score":0.777055025100708,"token_count":130,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__261997875","lang":"en","text":"· Metal frame\n· Anti-Reflective Coating coating\n· Bridge: 20 millimeters\n· Arm: 139 millimeters\n· UV400 Protection Sun Glasses:Anti reflective lenses can block 100% of both UVA and UVB radiation, filtering out sunlight reflected glare and protecting your eyes against of UV400 damage.\n· Classic Aviator Frame:Sunglasses focuses classics with sophisticated aesthetics and clean lines that offer a modern twist, ideal when you want to adapt outlook and express individuality.\n· High Quality Materials: All our sunglasses have a stylish design with high quality lenses!","domain":"optical_engineering"}
{"url":"https://alternative-me.com/how-to-choose-binoculars-for-hunting/","date":"2024-02-29T19:57:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474852.83/warc/CC-MAIN-20240229170737-20240229200737-00092.warc.gz","language_score":0.9333725571632385,"token_count":743,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__65148024","lang":"en","text":"How to choose binoculars for hunting02.12.2019\nHunting binoculars are a necessary and very useful thing. It helps to see the remote object in conditions of poor visibility, helps to navigate the terrain, choose the route, search for game at a great distance. Binoculars for hunting thing is really indispensable. In order for binoculars to become your reliable helper in hunting, not an unnecessary burden, it must be chosen correctly.\nThe choice of binoculars is not an easy task, because from the large range of available binoculars you need to choose the binoculars suitable for your parameters and requirements, and on the other hand, you need to meet the budget, which you can spend on buying binoculars. Professional advice on how to choose binoculars for hunting will help you to orientate yourself in a wide range of such devices. From the very beginning, the hunter needs to decide what he needs binoculars for, what kind of hunting he needs it for, where and how he will use it. Having defined with these moments the hunter will consciously choose parameters and characteristics of his future binoculars for hunting.\nCharacteristics of binoculars for hunting\nWhen we are going to buy binoculars in a store or on the site, we face a huge selection of different models, and each model of binoculars has its own characteristics, which are difficult for a simple hunter to understand. Let’s try to understand some of the features that will help you choose the best binoculars for deer hunting.\nMagnification of binoculars for deer hunting\nThe Magnification binoculars show how much it magnifies remote objects. Many hunters, when choosing binoculars for hunting, try to buy binoculars with maximum magnification, but the pursuit of excessive magnification is a mistake. Firstly, in most situations, such binoculars are uncomfortable to use, because of the shaking hands the image shakes without giving you a look at what you need. Secondly, large magnification binoculars are usually accompanied by large size binoculars and its high weight, such binoculars you are tormented to carry around the forest, touching them by trees and bushes.\nChoose magnification binoculars depending on the conditions in which you are hunting. When hunting in the woods, you will have enough magnification of 7-8 times. The distances seen in the forest are small and with 7-8x magnification you will be able to see the deer hiding in the thick foliage.\nThe mountainous terrain requires maximum magnification: 12 or more multiple devices are used. Mountain hunting involves huge distances and searching for hunting objects in large areas, so the multiplicity of binoculars is required. Often in mountain hunting with binoculars with high magnification are used tripods on which these binoculars are fixed, to eliminate the tremor of the image. But for deer hunting, of course, this is not the case.\nChoosing binoculars for hunting, it is worth paying attention to the diameter of the lens, it is the second most important parameter of binoculars, after magnification, it affects the angle of view, the aperture of the device, the width of the field of view. The larger the diameter of the lens, the more light enters the binoculars and the brighter and more contrasting the image given by the binoculars. For hunters who anticipate that they will often have to hunt in low light conditions, at night or at dusk, choose binoculars with a large lens diameter. Such binoculars will have excellent light-aperture characteristics and will allow observing difficult lighting conditions.","domain":"optical_engineering"}
{"url":"https://mikimishop.com.au/products/peggy-shiny-black","date":"2022-01-23T21:29:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304309.59/warc/CC-MAIN-20220123202547-20220123232547-00121.warc.gz","language_score":0.9107368588447571,"token_count":130,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__90169584","lang":"en","text":"Offering a feminine approach to a cat-eye style, Bask's Peggy frame is crafted from a shiny gold metal with a rounded acetate brow. Perfect for your days spent seaside, the Peggy is fitted with Bask's signature CR39 polarised lenses while the soft nose pads are adjustable for extra comfort.\nLens: 59 Bridge: 19 Arm: 145\nAll Bask sunglasses feature CR39 polarised lenses with 100% UV protection. Each lens has a blue anti-reflective coating found on the inside that acts as an absorbent layer and prevents glare from reflecting back into the eye, ultimately increasing user comfort and wearability.","domain":"optical_engineering"}
{"url":"http://cascade.uoregon.edu/spring2011/natural-sciences/photon-fast-lane/","date":"2017-04-27T14:52:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122174.32/warc/CC-MAIN-20170423031202-00221-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9302734732627869,"token_count":1028,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__219928934","lang":"en","text":"UO physicist Michael Raymer is helping pave the way for faster, more secure Web browsing through the quirkiness of quantum mechanics, which operates on the level of single electrons of matter and single photons of light. By focusing a dual-color burst of laser light onto a fiber-optic cable, Raymer and doctoral student Hayden McGuinness were able to change the color of a single photon—a crucial step toward quantum computing.\nThe implications? If digital information can be stored and transmitted in a single electron and a single photon—rather than being stored in bits composed of many electrons and transmitted in light pulses containing many photons, as is currently the case—then quantum theory predicts a huge speedup of certain computer-intensive tasks, such as searching the Internet. Imagine “lightning-fast quantum Google,” said Raymer.\nRight: Graduate student Hayden McGuinness in the lab. Photos: Katie Campbell\nThe research by Raymer and McGuinness takes advantage of the fact that, at the level of single electrons and photons, quantum strangeness reigns. Think Einstein’s “spooky action at a distance,” the Heisenberg uncertainty principle and Schrödinger’s dead-or-alive cat (see sidebar). Because of this small-scale complexity, certain types of Internet transactions, such as searches, would become unthinkably fast and utterly hacker-proof.\nOne aspect of that quantum strangeness is wave-particle duality, which means that a photon of light possesses the properties of both a wave and a particle at the same time. This permits quantum bits to store values of both 0 and 1 simultaneously, unlike typical computer bits, which must have a value of either 0 or 1. This feature could not only significantly increase computational speed but could also render the quantum information safe from prying eyes. That’s because even the most careful observation of the quantum system would disturb its state, revealing the intrusion—another “spooky” effect.\nOne roadblock, however, is that quantum systems are based on the fact that electrons emit and absorb visible light. But existing fiber-optic cables are optimized to transmit infrared light. Raymer’s work potentially overcomes this obstacle.\nIn the next phase of their work, “the objective is to convert a single photon from the color that a common quantum memory will deal with into an infrared photon that communication fibers can transmit,” said Raymer, Knight Professor of Liberal Arts and Sciences. “At the other end, it has to be converted back into the original color to go into the receiving memory to be read properly.”\nRaymer, who is dedicated to making science accessible to nonscientists (see Science Literacy story), recently published The Silicon Web: Physics for the Internet Age (Taylor and Francis, 2009) for the curious nonscientist who has little or no mathematics or physics background. The book covers the basics of mechanics, electromagnetism, waves, optics and quantum physics as well as the science behind advanced technologies such as lasers, fiber-optic communication and semiconductors.\n“One can argue that scientific thought and methods have changed the course of human history as much as or more than anything else,” Raymer writes in the book’s preface. “To have a deeper understanding of where humanity is at present, it pays to study science and technology.”\n— Eric Tucker\nSidebar: Quantum Strangeness Reigns\n• Physicist Albert Einstein used the phrase “spooky action at a distance” to describe the quantum-mechanical phenomenon of quantum entanglement, in which the physical properties of two particles separated by vast distances remain strangely intertwined.\n• In 1935, physicist Erwin Schrödinger devised a deliberately absurd thought experiment to illustrate the strangeness of quantum entanglement. In it, an unfortunate cat, trapped inside a box with a vial of poison that is randomly released or not, is simultaneously dead and alive until someone opens the box and observes it. Similarly, in the UO experiment, under the action of the dual laser burst in an optical fiber, a single photon of light can end up being both red and green at the same time until someone observes it, at which time it must “decide” which color to be.\n• Formulated by physicist Werner Heisenberg in the 1920s, the quantum uncertainty principle states that the exact velocity and position of a subatomic particle can never be known simultaneously. For instance, measurement of the velocity of a particle will displace it by an unknown amount, invalidating the simultaneous measurement of its position. For light, measurement of the color of a photon will displace it in time by an unknown amount, invalidating the simultaneous measurement of its arrival time. Using this principle, it would be possible to tell whether or not an eavesdropper has tampered with the photon in an attempt to intercept a message being sent across the Internet.","domain":"optical_engineering"}
{"url":"https://www.soundluxaudio.com/index.php/ds-audio/","date":"2023-12-06T08:05:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00035.warc.gz","language_score":0.9351873397827148,"token_count":231,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__41673102","lang":"en","text":"Soundlux Audio is proud to represent DS Audio\nDigital Stream Corporation (DSC), with over 25 years of experience in the laser optics market, has recently expanded its portfolio by establishing DS Audio, a new audio business group. This strategic move marks a significant milestone for DSC, which has been renowned for its specialization in industrial laser optics systems. Their expertise spans across various sectors, including optical disc markets, medical testing systems, and a range of laser optical instruments.\nAmong their prominent offerings is the disc evaluation system, acclaimed for its absolute accuracy in optical disc error measurement. DSC’s technology ensures that any reading errors detected during tests are exclusively due to disc errors, a claim backed by their quarter-century of experience and impressive track record. This prowess is further evidenced by their dominating 95% market share in disc tester optics, a testament to the exceptional quality and performance of their laser products.\nLearn more at DS Audio.\nWe carry the full line of products from DS Audio. Please check with us if you don’t see a particular model you’re looking for since we’re regularly updating our products.","domain":"optical_engineering"}
{"url":"http://aeportal.blogspot.com/2010/04/lens-correction-in-camera-raw-lightroom.html","date":"2017-04-25T18:26:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120844.10/warc/CC-MAIN-20170423031200-00320-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8988565802574158,"token_count":203,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__221625864","lang":"en","text":"Lightroom Journal, a blog from the Lightroom team, has new information from Tom Hogarty in Preview of Lens Correction Solution for Camera Raw 6 and Lightroom 3:\n\"Below is a preview of lens correction technology that will be included in Lightroom 3 and the Camera Raw 6 plug-in that's part of Photoshop CS5. This is an exciting development for our non-destructive editing technology and is designed to address lens correction via two methods: Lens Profiles and Manual Correction. The easiest application of lens correction is to apply the lens profile technology that encompasses geometric distortion(barrel and pincushion distortion), chromatic aberration and lens vignetting characteristics.\"\nRead more... at the Lightroom blog. By the way, Photoshop CS5 will need to be updated after install for Camera Raw 6.1.\nFor more info, CS5 Help is live. Here's the preview of CR and LR lens correction along with a look at the Lens Correction tool in Photoshop CS5:","domain":"optical_engineering"}
{"url":"https://thermalavenger.jimdo.com/thermal-imaging/","date":"2018-01-21T16:05:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084890795.64/warc/CC-MAIN-20180121155718-20180121175718-00079.warc.gz","language_score":0.9080873727798462,"token_count":302,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__85839659","lang":"en","text":"Is your house cold or drafty in the winter? Do you have to run the air conditioning all day in the summer? Would you like to spend less on your utility bills? Then A Thermal Imaging home inspection is just what you need. Read How a thermal imaging inspection can benefit you as a home owner.\nA thermal Imaging Camera, in its most basic form, allows the user to see a two dimensional image displayed in heat. This infrared image is created with a tiny grid of infrared detectors inside the thermal imaging camera behind a lens. When all of individual temperature values are converted from a neumeric temperature value to a color associated with a temperature, you generate a thermal image. Thermal images are usefull in many industrial applications, most industrial problems will generate heat as a byproduct such as overloaded panels or failing bearings in a motor. Building inspection is also a great appliation as thermal imaging camera's can detect heat loss around windows or doors and can even detect water damage if used properly!The single most critical feature when selecting a thermal camera is the infrared detector resolution. This is the number of points the thermal imaging camera can measure at any one time and is usually refered to as horizontal x vertical pixels. If you multiply the horizontal pixels by the vertical pixels you will get the total number of infrared measurement points that the camera is capable of measureing. More temperature measurement points will give you a clearer image, better ability to see physically smaller temperature changes and the ability to print out the image at large sizes.","domain":"optical_engineering"}
{"url":"https://www.gcestudybuddy.com/physics/light","date":"2021-12-07T12:43:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363376.49/warc/CC-MAIN-20211207105847-20211207135847-00145.warc.gz","language_score":0.9130555391311646,"token_count":4255,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__81522714","lang":"en","text":"Light follows straight lines, or rays, from a source of light to an observer unless it is reflected, by a mirror, or refracted, by a lens, on route.\nMirrors and lenses come in a variety of shapes to manipulate the light rays in various useful ways. Ray diagrams help us to understand their effects.\nAn image is formed at a point where the light rays from an object appear to come from, had their direction not been changed by a mirror or lens.\nSpeed of light: 3 x 108 m/s\nLight ray: Path in which light travels. Can be parallel beam, converging beam or diverging beam.\nLuminous object: Objects which give out light\nNon-luminous object: those which do not give out light\nReflection of light\nIncident ray: Light ray hitting the reflecting surface.\nReflected ray: Light ray reflected from the reflecting surface.\nNormal: The perpendicular to the reflecting surface at the point of incidence.\nAngle of incidence (i): The angle between the incident ray and the normal.\nAngle of reflection (r): The angle between the reflected ray and the normal.\nLaw of Reflection\nThe incident ray, reflected ray and the normal of the reflecting surface lie on the same plane.\nAngle of incidence = Angle of Reflection\nOccurs at smooth surfaces.\nParallel light rays incident on the surface are reflected in one direction only (all rays have the same incident/ reflected ray).\nThe normals of all points of incidence are equal.\nOccurs at rough surfaces (sandpaper, burnt boots).\nParallel light rays incident on the surface is reflected in all directions.\nThe normals are not parallel.\nCharacteristics of image formed by plane mirror\nSame size as object\nVirtual (not real, cannot be captured on screen)\nThe distance of the image from the mirror = distance of object from the mirror.\nApplications of mirrors\nRefraction of light\nthe bending effect of light as it passes through another medium of different density.\nRefraction occurs as the speed of light varies in different media\nThe light must pass from one optical medium to another of different optical density\nAngle of incidence more than 0°.\nLaws of refraction\nThe incident ray, the normal and the refracted ray all lie on the same plane.\nFor 2 particular transparent media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.\nsin i / sin r = constant\nWhen light travels from a less dense medium to a denser medium, the ray of light moves towards the normal.\nLikewise, when light travels from a denser to a less dense medium, the ray of light moves away from the normal.\nWhen light enter a medium perpendicularly, regardless of its density, no deviation of the ray is observed.\nThe value of the constant ratio sin i/sin r for a ray passing from air/vacuum to a give medium is known as the refractive index of the medium.\nThe greater the value of the refractive index, the greater the bending of light, the more the light is slowed down and the denser the medium is.\nDispersion of white light\nThis is due to different colours travelling different speeds in glass.\nRed deviates (slows down) the least.\nViolet deviates (slows down) the most.\nOptical Centre (C): The midway point between the lens surface on the principal axis\nPrincipal axis: The line passing symmetrically through the optical centre of the lens\nPrincipal focus (F): Point on the principal axis where rays of light converge after passing through the lens\nFocal length (f): Distance between the optical centre, C and the principal focus F.\nFocal plane: Plane which passes through F and P. It is perpendicular to principal axis.\nAs light rays can pass through the lens from both sides, each lens has 2 principal foci and 1 focal length on each side of the lens.\nA thicker lens has a shorter focal length and bends light rays to a greater extent whereas a thinner lens has a longer focal length and bends light rays to a shorter extent.\nLinear magnification = height of image / height of object OR image distance / object distance\nConstructing ray diagrams\nPrinciple axis - the principle axis is defined as a line perpendicular to the curved surface of the lens at its center...ie - a line running horizontally through the center of the lens.\nPrinciple focus - related to the focal length of the lens... ie - one focal length away from the center of the lens (therefore there are two principle foci, one on either side, usually designated F on the far side, and F' on the same side as the object.) Parallel rays of light entering the lens either converge towards the principle focus (convex lenses) or diverge from it (concave lenses).\nFocal length - Focal length is the shortest distance between the principle axis and the principle focus.\nParaxial rays - Paraxial rays are those that are close to the principle axis and parallel to it.\nMagnification - the magnification is usually defined as image height/object height, representing in effect how much bigger the image is. This is also be directly related to image distance/object distance\nSummary: Mirrors, Lenses, Images\n1. The diagram below shows a plane mirror placed at a distance of 400cm in front of a girl. If the doctor's test card is fixed at 70cm behind the eyes of the girl, what is the distance of the image from the girl?\n2. The diagram shows a ray of light moving from air to plastic. Which ratio is the refractive index of plastic?\n3. The image seen on the translucent screen of a pinhole camera is\na. real and inverted\nb. real and upright\nc. virtual and inverted\nd. virtual and upright\n4. An object is placed in front of a pinhole camera. An image is seen at the centre of the translucent screen when viewed from behind. If the object is now moved slightly nearer and to the observer's right, the image becomes\na. larger and moves to the observer's right\nb. larger and moves to the observer's left\nc. smaller and moves to the observer's right\nd. smaller and moves to the observer's left\n5. A light ray does not undergo refraction at a boundary between two media of different optical densities if its angle of incidence is\n6. An object is placed in front of a lens at a distance less than the focal length of the lens.\nThe image formed will be\na. real, inverted and diminished\nb. real, upright and magnified\nc. virtual, inverted and magnified\nd. virtual, upright and magnified\n7. If the size of the image formed by a converging lens is the same as the object, the object distance is\na. less than the image distance\nb. equal to the image distance\nc. less than the focal length of the lens\nd. equal to the focal length of the lens\n8. Which of the following instruments does not contain lenses?\n9. A boy walks at a speed of 5m/s towards a plane mirror. The boy and his image in the mirror are moving\na. towards each other at a speed of 5m/s\nb. away from each other at a speed of 5m/s\nc. towards each other at a speed of 10m/s\nd. away from each other at a speed of 10m/s\n10. The size of an image formed in a pinhole camera may be increased by\na. placing the object nearer to the camera\nb. reducing the size of the object\nc. decreasing the distance between the pinhole and the screen\nd. making the pinhole bigger\n11. In total internal reflection, the angle of incidence is\na. less than the critical angle\nb. greater than the critical angle\nc. less than the angle of reflection\nd. greater than the angle of reflection\n12. Total internal reflection can take place in glass and not in air because glass is\na. optically denser than air\nb. less transparent than air\nc. more transparent than air\nd. as optically dense as air\n13. The image formed by a slide projector is usually\na. real, inverted and diminished\nb. real, inverted and magnified\nc. virtual, upright and magnified\nd. virtual, inverted and diminished\n14. Red light cannot be dispersed by a glass prism because it\na. has a high frequency\nb. has a long wavelength\nc. does not have component colours\nd. is not refracted in glass\n15. White light is dispersed using a prism by means of\n16. A student uses a converging lens to produce an enlarged virtual image of a scale she wishes to read accurately. The focal length of the lens is 10cm. What is a suitable distance between the scale and the lens?\n17. Which of the following is/are optical device(s) that uses a lens to form a real image of an object?\n(1) magnifying glass\n(2) pinhole camera\n(3) slide projector\na. (3) only\nb. (1) and (2) only\nc. (1) and (3) only\nd. (2) and (3) only\nStructured Questions and Solutions\n1. An observer E stands near the edge of a swimming pool. He could see the image of a lamp L1 due to the reflection of light from the surface of the water, which acts like a mirror. L2 and L3 are two other lamps fixed as shown below.\na. On the diagram, mark the position of the image of L1.\nb. Draw two rays to show how E is able to see the image of L1.\nc. State whether this image is real or virtual.\nd. How would the position of the image of L1 seen by E be affected if the water level in the pool were lowered?\ne. Can observer E see the image of L3?\n1a and b.\nd. The image will appear further. (because the distance between the lamp and water surface (mirror) is now increased)\ne. Yes, the observer can see the image.\n2. Figure a and b show light rays reflected to an observer from the surface of each of two mirrors, one plane and the other curved. The normal, N, at each point of incidence has been drawn.\na. Complete both diagrams by drawing accurately the incident rays that would produce the reflected rays shown. The incident rays should start from lines PQ and XY.\nb. Write down the lengths of the portion of PQ and XY which observers A and B can see in the two mirrors respectively.\nc. Give one reason why the side mirrors of most cars are curved.\nFirst measure the angle of incidence using a protractor.\nThen draw the reflected ray, with the angle of reflection equal to the angle of reflection.\nAnother way is to make use of the images of points X and Y, using the following steps:\ndraw a perpendicular line from point X to the mirror, and extend the line upwards to determine the image of point X.\ndraw a line linking the image to the normal, and extend it so that the line touches lines PQ and XY.\nb. AB: 3.3cm\nc. Provide drivers with a wider field of vision\n3. The diagram shows a person whose eyes are 1.6m above the ground. He looks at his reflection in a vertical plane mirror 2.5m away. The top and bottom of the mirror are 2.0m and 1.0m above the ground respectively.\na. How far behind the mirror is the image of the person's head?\nb. The person holds the letters 'SET' in front of the mirror. Write down the image of these letters as seen by him.\nc. By drawing light rays, indicate on the diagram which part of his body the person could not see in the mirror.\n4. The diagram below is a scale drawing of a narrow road with a plane mirror mounted across the corner of a 90º bend. The point C represents a car.\na. Mark the position of the car image, formed by reflection at the mirror by a point I.\nb. Draw the paths of two rays of light from C by which a man sees this image with his eye positioned as shown in the diagram.\nThe car travels towards the bend, along the centre line of the road, a distance represented by 10mm on the diagram.\nc. Mark I' the position of the image of the car when it has travelled to this position.\nd. Draw an arrow on the diagram to show the direction in which the car appears to the man to be travelling.\n5. A plane mirror is inclined at 40º to the floor. An incident ray parallel to the floor strikes the plane mirror as shown.\na. What is the angle of incidence?\nb. What is the angle between the incident ray and the reflected ray?\nc. The plane mirror is lowered until the inclination is reduced to 20º. What is the change in angle of reflection?\n5a. Angle of incidence is the angle between the normal and the incident ray.\nAngle of incidence = 90º - 40º = 50º\n5b. Angle of incidence = angle of reflection\nAngle between the incident ray and the reflected ray = 50º + 50º = 100º\n5c. Original angle of reflection = 50º\nNew angle of reflection = 70º\nChange in angle of reflection = 70º - 50º = 20º\n6. Two men, A and B, are standing in front of a plane mirror as shown.\na. When A looks into the mirror, how far does B seem to be away from him?\nb. B starts running towards A at a rate of 1m/s. How fast does B appear to be moving towards A when A looks at the mirror?\nc. A starts running towards the mirror at 1m/s. When A looks at the mirror, how fast does his image appear to be moving towards him?\n6a. distance between A and B' = 3 + 3 + 6 = 12m\n6b. B will appear to be running towards A at a speed of 1m/s.\n6c. A will appear to be running towards himself at a speed of 2m/s.\n7. An artist leans his back against a painted wall while looking into a 1m long mirror at the opposite end of a rectangular room.\na. How many metres of the painted wall can he see in the 1m long mirror?\nb. The artist moves forward such that he is 5m from the mirror. How many metres of the painted wall can he see in the 1m long mirror?\n7a. Assume that the artist is facing the centre of the mirror. To see the maximum range, he has to look at the two extreme ends of the mirror. By applying angle of incidence = angle of reflection, the maximum length of the painted wall is 2m.\n7b. Assume that the artist is facing the centre of the mirror. To see the maximum range, he has to look at the two extreme ends of the mirror. Applying the principle angle of incidence = angle of reflection,\nDC = 0.5m\nBD = 0.5m (ABC is an isoceles triangle)\nTriangle ADB is similar to triangle AFE\nAD/BD = AF/EF\n5/0.5 = 15/EF\nEF = 1.5m\nGH = EF = 1.5m\nThe maximum length of the painted wall is 1.5m + 1m + 1.5m = 4m\n8. A ray of light travels from air into a semicircular prism and emerges into the air again as shown below. The refractive index of air is 1.0.\na. What is the critical angle of the prism material?\nb. What is the refractive index of the prism material?\nc. The light ray is rotated anti-clockwise causing such that angle a is changed to 50º. Draw on the diagram the new positions of the incident ray and refracted ray.\nd. The light ray is rotated clockwise such that angle a is changed to 70º. Draw the new positions of the incident ray and refracted ray.\n8a.critical angle = 90º - 60º = 30º\n8b. sin c = 1/n\nsin 30 = 1/n\nn = 2.0\n8d. ni sin i = nr sin r\n2 x sin 20 = 1 x sin r\nr = 43.2º\na. Complete the ray diagram to locate the position of the image formed by the converging lens.\nbi. What are the characteristics of the image formed?\nbii. Name an application for such an arrangement.\nci. What happens to the size and position of the image when the object is moved slightly to the left?\ncii. Name an application for such as arrangement.\ndi. What happens to the size and position of the image when the object is moved slightly to the right?\ndii. Name an application for such an arrangement.\n9. An object O is placed in front of a thin converging lens of focal point F as shown below.\n9bi. real, inverted and same size as object\nci. The image gets smaller and image distance from the lens decreases.\ndi. The image gets bigger and image distance from the lens increases.\n10. An object O is placed in front of a thin converging lens of focal point F as shown below.\na. In the diagram above, draw rays to locate the position of the image formed by the converging lens.\nb. What are the characteristics of the image formed?\nc. What happens to the size and position of the image when the object is moved nearer to the left, towards the focal point?\n15b. virtual, upright, magnified\n15c.The image gets bigger and image distance from the lens increases.\n16. An object O is placed in front of a thin diverging lens of focal point F as shown below.\na. In the diagram above, draw rays to locate the position of the image formed by the diverging lens.\nb. What are the characteristics of the image formed by a diverging lens?\nc. What happens to the size and position of the image when the object is moved nearer to the diverging lens?\n16b. virtual, upright, diminished\n16c.The image gets bigger and image distance from the lens decreases.","domain":"optical_engineering"}
{"url":"https://www.cpidaylighting.com/products/dynamic-shading/","date":"2019-07-23T20:01:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195529664.96/warc/CC-MAIN-20190723193455-20190723215455-00325.warc.gz","language_score":0.8706817626953125,"token_count":244,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__17457800","lang":"en","text":"IntelaSun® is a dynamic shading system designed for both skylight and wall applications. The system’s ability to control light transmission levels results in lower peak load demands and significantly improving a building’s energy efficiency, resulting in predictable energy consumption and associated cost savings.\nThe perfect system to effectively manage daylight levels, and reduce solar heat gain and glare. Design larger aperture sizes to maximize daylight without worrying about over-lighting the space below. The skylight can be zoned, and the innovative internal louver system can adjust to scale down the size of the system during peak daylight hours.\nThis intelligent and dynamic wall system is able to control light levels and prevent excessive heat gain and glare, without the use of any secondary shading devices. The IntelaSun® system effectively regulates the amount of light to optimize building performance and energy efficiency, and can be used for both simple clerestories and full facades up to 40' tall.\nThe IntelaGlas® system incorporates a layer of glass above the typical IntelaSun system. This system is designed for those needing additional thermal performance, an improved STC rating, or are wanting to match the look of glass on the exterior.","domain":"optical_engineering"}
{"url":"http://www.herdprotect.com/signer-ningbo-yongxin-optics-co-ltd-010000000001266e695768.aspx","date":"2017-04-27T05:38:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121869.65/warc/CC-MAIN-20170423031201-00248-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.6842451691627502,"token_count":165,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__318388103","lang":"en","text":"Ningbo Yongxin Optics Co., Ltd. is a software developer located in China*.\n1/27/2010 5:40:14 AM\n1/27/2011 5:40:14 AM\nCN=\"Ningbo Yongxin Optics Co., Ltd.\", O=\"Ningbo Yongxin Optics Co., Ltd.\", C=CN\nCN=GlobalSign ObjectSign CA, OU=ObjectSign CA, O=GlobalSign nv-sa, C=BE\nNo known positive detections\n* Note, the details and description above are based on the code signing digital signature issued to Ningbo Yongxin Optics Co., Ltd. by GlobalSign nv-sa on January 27, 2010 with the serial number '010000000001266e695768'.","domain":"optical_engineering"}
{"url":"https://panstone.eu/pan-stone-europe-have-created-a-partnership-with-doss-visual-inspection-systems/","date":"2024-03-03T05:46:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476205.65/warc/CC-MAIN-20240303043351-20240303073351-00279.warc.gz","language_score":0.9262554049491882,"token_count":361,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__24825778","lang":"en","text":"DOSS Visual Inspection Systems is a renowned brand that offers a wide range of quality inspection solutions. As an agent of DOSS Visual Inspection Systems, Pan Stone Europe is proud to introduce their product range to customers in Europe.\nDOSS Visual Inspection Systems has a vast selection of inspection systems that cater to various industries and applications. Their systems are designed using cutting-edge technology and are built to meet the highest quality standards. Whether it’s for surface inspection, defect detection, or measurement, DOSS Visual Inspection Systems has the solution to meet your specific needs.\nOne of their most popular systems is the DOSS Flat Surface Inspection System. This system is designed to inspect flat surfaces for defects such as scratches, cracks, and dents. It uses high-resolution cameras and advanced algorithms to detect even the smallest defects. The DOSS Flat Surface Inspection System is perfect for industries such as electronics, automotive, and medical devices.\nAnother system that DOSS Visual Inspection Systems offers is the DOSS 3D Inspection System. This system uses cutting-edge technology to capture 3D images of objects and then analyses the images for defects or irregularities. It’s an ideal solution for industries that require precise measurements and inspections, such as aerospace and precision engineering.\nIn addition to these systems, DOSS Visual Inspection Systems also offers a range of other inspection solutions, including vision-guided robotics, web inspection systems, and more. With their advanced technology and commitment to quality, DOSS Visual Inspection Systems is a trusted brand among customers worldwide.\nAs an agent of DOSS Visual Inspection Systems, Pan Stone Europe is committed to providing customers with the best possible inspection solutions. Contact Pan Stone Europe today to learn more about the DOSS Visual Inspection Systems product range and how it can benefit your industry and application.","domain":"optical_engineering"}
{"url":"https://pulselectronics.co.uk/shop/sound-vision/vision/sony-cyber-shot-dsc-rx100-20-2-mp-advanced-compact-digital-camera/","date":"2022-01-25T04:12:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304760.30/warc/CC-MAIN-20220125035839-20220125065839-00609.warc.gz","language_score":0.8296197056770325,"token_count":363,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__224184133","lang":"en","text":"Condition:Ex-demo. Grade-A. Very good cosmetic condition supplied with all accessories . No memory card. Comes with original packaging and 6 months warranty.\nAbout this item\n1.0-type 20.2 megapixels Exmor CMOS sensor, F1.8 Zeiss lens, 3.6x optical zoom, Full HD 50p, 3.0″ LCD\nBright F1.8-4.9 28-100mm ZEISS Vario-Sonnar T* lens for sharp, focused subjects and background defocus\nPro-style manual controls with a control ring to adjust zoom, aperture and shutter speed.\nElegant yet robust design with a compact aluminium body\nThe professional’s compact camera\nWhether you’re a pro looking for a high quality compact camera or simply want to take your point and shoot photography to the next level, RX100 offers high quality and DSLR-like operation in a sophisticated package.\nThree steps to a right shot\nFirst, an F1.8 ZEISS Vario-Sonnar T* lens with a wide aperture captures more of the shot. Second, the 20.2 MP Exmor CMOS sensor captures light with efficiency and third, the powerful BIONZ processor produces smooth detail and low noise.\nPocket-sized, pro performance\nThe DSC-RX100 has expert features in a unit that really fits in your pocket – with a sleek, compact design that’s crafted in weight-saving aluminium.\nControls like on a DSLR\nChange settings from the lens\nAdjust aperture, exposure, zoom and more from the control ring.\nAn LCD screen you can see in sunlight\n7.5 cm LCD screen uses WhiteMagic for high contrast.","domain":"optical_engineering"}
{"url":"https://unm.org.ua/stephen-yablo-ghvdrez/735f56-cvlife-tactical-scope","date":"2021-08-04T19:38:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154897.82/warc/CC-MAIN-20210804174229-20210804204229-00567.warc.gz","language_score":0.9084423184394836,"token_count":4424,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__126994739","lang":"en","text":"Considering its cost and expectations, that relationship is not bad. CVLIFE Hunting Rifle Scope 3-9x32 AOL Red and Green Illuminated Tactical Gun Scope with 20 mm Mounts (Green Lens) in Gun Scopes. CVLIFE Scope 6-24×50 Review â A Complete CVLIFE scope review . Pros. Product Title Cvlife Optics Hunting Rifle Scope 6-24x50 AOE Red & Green Illuminated Crosshair Gun Scopes With Free Mounts Average Rating: ( 4.3 ) out of 5 stars 8 ratings , based on 8 reviews Current Price $62.99 $ 62 . If you’re still confused about choosing your scope from the list above, I can suggest you get the CVLIFE 4-16×44 Tactical Rifle Scope. CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included. More items related to this product . The zero locking feature of this scope comes with a lock mechanism to keep the target steady. With the addition of power settings for the reticle and other dials for adjustments, the 2.5-10x40e scope will make a great entry for you into the world of sporting optics. Features: Tri illuminations (green/red/ blue) and 3 levels of brightness setting for each color allow shooters to find the perfect brightness needed Equipped with fiber optic sight for quick acquisition Pre-set parallax, adjusted for 100 yards About this product. The CVLIFE R4 Reticle Scope comes with multiple coating on the lenses, which are amazingly transmitted over 95 percent light. This multi-coated lens also has red illumination technology for different types of light sources and conditions. CVLIFE Tactical Rifle Scope 3-9X40 Red Green Illuminated Optics Hunting Gun Scope with 20mm Mounts. The CVLIFE 2.5-10x40e comes with a magnification level of 2.5 up to 10 times larger than the natural size of your target with its FMC lens. Even the sniper rifles are useless until it joins with a wonderful and high-quality sniper riflescope just like the hottest CVLIFE tactical sniper riflescope. It's light but it doesnât sacrifice strength or functionality to get there. CVLIFE Tactical Micro Reflex Sight Red Green Dot Scope Sight with QD Quick Riser Mount and Additional Rail Attachment Adapter in Gun Scopes. 4.3 average based on 19 product ratings CVLIFE Tactical 3-9x40 Optics Reticle Crosshair Air Hunting Rifle Scope . Free shipping . CVLIFE brand offers amazingly awesome features in their scopes which makes them super easy to use and adjust to the environment, such as: There are a lot of things that make the CVLIFE brand one of the most desired rifle scope manufacturers, here are some: Here are the answers to the most frequent questions about rifle scopes and their functionalities: It means you can see an object up to 16 times bigger through a lens of 44 mm in diameter. High performance optical scope with fiber optic sight for quick and accurate acquisition (with Weaver Slots) Crisp image for accurate shooting. $55.99 $ 55. Amazon, the Amazon Logo, Amazonsupply, and the Amazonsupply Logo Are Trademarks of Amazon.com, Inc. Or Its Affiliates. Itâs a hot favorite for the low-end scope seekers. It comes with a 20mm Picatinny mount with it to attach the scope to your rifle. 1127. Details & FREE Returns Return this item for free . Subscribe to get special offers, free giveaways, and once-in-a-lifetime deals. You can adjust follow live moving targets through adjusting the lever, so that you are able to follow live moving targets easily and conveniently. It has a bullet drop compensator to make quick adjustments to the reticle. Most of the scopes from CVLIFE come with built-in sunshade and turret lock with adjustment, which helps you use the scope for a long time in mint condition. FREE Shipping by Amazon. Product Identifiers. This scope comes with a sturdy aluminum build and suitable both for hunting and shooting. You’ll get a second focal plane (SFP) crossfire in the lens, which doesn’t change while magnifying. Show More Show Less. Specifications: Magnification: 4-16x Objective Diameter: 1.73\" (44mm) Feature: Constructed with the Kellner eyepiece allows for extra field of view and makes it be able to eliminate of most of image aberrations. CVLIFE 3-9×40 / 3-9x40AO Optics R4 Reticle Crosshair Scope, Best Night Vision Scope Under $500 Reviews, The 5 Best Gun Safe for Apartment- Experts Review of 2021, Best FFP Scope Under 500 (First Focal Plane) – Reviews of 2021, WildSurvive Pro Review 2021: Know This Before Buying Now, Tactic Air Drone Review: Get Snappy With the Tactic Air Drone 2021. 4.4 out of 5 stars 712 ratings | 136 answered questions List Price: $58.99: Price: $53.99 & FREE Shipping. Maximum Magnification. CVLIFE 1-6x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE 1-8x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE 1-4x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount. Reticle. It offers both Red and Green illumination in the reticle, and it has a turret locking mechanism with a built-in sunshade. You’ll get a built-in sunshade with this scope, which will help you shoot at any light condition. Reviewing the CvLife Long range scopes (6x24x50 and the 4x16x44) to the proven SWFA SS 16x. It is currently zoomed in the closest. Itâs probably an easy fix for someone who knows what they are doing. This is a budget scope that comes with a couple of neat perks to back up its low price. Hunting Rifle Scope ACOG 4X32 Optics Sight Tactical Reticle Real Red Green Fiber. This CVLIFE 6-24×50 is a sort of scope that you would love to own. Going through the CVLIFE scope reviews, I hope you found the best scope to start your hunting journey.Â. This scope comes with a great magnification level with a high-contrast and clear imaging level. The CVLIFE Tactical Scope weighs just 345 grams and the diameter is 25.4 mm. CVLIFE 4x32 Tactical Rifle Scope Red & Green &Blue Illuminated Reticle Scope with Fiber Optic Sight 3.9 out of 5 stars 513 CVLIFE 6- 9 Inches Tactical Rifle Bipod Adjustable Spring Return with Adapter 4.6 out of 5 stars 6,783 Rest assured that CVLIFE customers service team is always here to keep you from any loss. The scope includes a Special inner and outer structure to control the interaction between the inner and outer tubes of the scope, which provides long lasting reliability in these interaction and ensures the reticle would not rotate when adjusting. Furthermore, it offers a Red and Green reticle illumination method to use under instance and harsh light and environment conditions. Brand. The locking turret on this scope will keep it safe in harsh conditions, and it’s super easy to use because of the opening upward. CVLIFE 1-4x24E SFP RifleScope Dual-Color Illuminated-Reticle with 20mm Cantilever Mount, CVLIFE Heavy Duty 8.5-12ââ Latest Carbon Fiber Swivel Stud Bipod with Adapter, translation missing: en.cart.general.close, translation missing: en.sections.slideshow.pause_slideshow, translation missing: en.sections.slideshow.play_slideshow, 4 Tips for Choosing The Best Hunting Bipod For A Beginner, Why do You Choose СVLÐFÐ 2.5-10Ð¥40е RÑflе Ð\nÑоÑе. You can see the target up to 9 times bigger where the regular magnification is 3 times bigger. Popular . 99 We don't know when or if this item will be back in stock. CVLIFE. This scope comes with high-end Multi-Coated optical lens glasses inside. With this laser sight, you’ll be able to shoot your target, especially in hunting precisely. Leg extensions ï¼8.5ââ -12ââï¼ slide and lock securely with quick, yet quiet button for easy and quiet height adjustments. You will get a full sight class IIIA, 2mW laser vision pointer with this scope, which can reach up to 100 yards. 99. CVLIFE 2.5-10x40e Red & Green Illuminated Scope with 20mm Mount, 3. Physical properties: The exit pupil is 5.1 millimeters and has a length of approximately 31 centimeters. Black. The zero locking feature and the laser sight functions in CVLIFE rifle scopes make it go one step further in precise targeting. Here are the quick navigation lists to the different parts of the article; you can navigate to the desired section with them: If you’re looking for the best picks among the CVLIFE rifle scopes with their key features, here is a quick comparison list for you: CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included, CVLIFE 2.5-10x40e Red & Green Illuminated Scope with 20mm Mount, CVLIFE 3-9x40 / 3-9x40AO Optics R4 Reticle Crosshair Scope with 20mm Free Mounts (3-9X40). CVLIFE 4×32 Tactical Rifle Scope The first is the 4×32 Tactical Rifle Scope. Picking up the right one would be a tough job for you, but not for our expert team in rifle scopes. However, choosing the right scope for your rifle can be a daunting job, especially if you’re a beginner in the shooting. It comes with an ocular vision with dioptric adjustments for nearsighted and farsighted people. It has 3 colors for illumination â red, green, and blue. The extra FO sights on top are a lucrative feature and may help with quick switching between glass and irons. CVLIFE tactical bipod is built in rotating cant (10°ï¼. Regular price $89.99 Sale price $36.99 Save $117.00 Quick view. CVLIFE tactical bipod is constructed from Carbon Fiber and milled 7075 aerospace Aluminium, allowing rock solid support and stability while allowing the hunter to achieve a full range of motion and maneuverability. It is extremely durable but yet light weight, making it the perfect hunting bipod for deer hunters or other big game hunters who are packing in and need a light weight shooting bipod. 99 $60.99 $60.99. 1. The recommended size of the magnification power in scope for 500 yards is at least 10x. Currently unavailable. It also offers an Adjustment mechanism of turrets for Windage and Elevation control while you’re targeting. This scope also offers a great feature called the ocular, which helps you with dioptric adjustment, which is super handy if you wear eyeglasses. https://www.amazon.com/CVLIFE-Tactical-Hunting-Illuminated-Crosshair/dp/B01GHTJGA2 #scope CVLIFE tactical bipod is compatible with Different Rails: K-mod / M-lok /20mm Picatinny. If you talk about technical specifications, it is surprising to discover that this viewer has a magnification capacity of 3-9 and a lens of 40 millimeters. Product Key Features. Color. However the zoom ring spins when trying to adjust. Lens Diameter. Free shipping . Best Uses for the CVLIFE 4x32 Tactical Rifle Scope This scope can sight accurately upto a distance of 300 yards. A very high-end feature, the second focal plane (SFP), comes in the CVLIFE scopes, which you can only see in the brutally expensive scopes. It offers a 40mm diameter objective lens with 32.5′ field of view at 2.5x in a 100-yard target, which makes it one of the best scope for AR 15 under $100. CVLIFE 4-16x44 Tactical Rifle Scope Red and Green Illuminated Built with Locking Turret Sunshade and Scope Mount Included Visit the CVLIFE Store. For this reason, you only need 1 bipod for all your guns.A 20mm picatinny rotating adapter is included freely. The laser is thought of by most customers as enjoyable or unnecessary depending on preference. It comes with a 20mm scope mount for attaching it to your rifle rail. It can keep out of fog, dirt, rain splash to help you have a constant clear sight. Comes as is. Regardless, this CVLIFE would make a great beginners scope for most rifles that fit its mounting system. It can transmit 300 percent more in terms of the visual light spectrum, which ensures very high accuracy for color contrast. CVLIFE 4-12X50 Rifle Scope w/ JG8 Green Laser Sight + HD103 4 Holographic Dot Reflex Sight. CVLIfe Scope Review: Pros and Cons. Leg Rotating Range: 0°, 30°, 60°, 90°, 120°, 150°, 180°. CVLIFE Tactical 3-9×40 Riflescope Even the sniper rifles are useless until it joins with a wonderful and high-quality sniper riflescope just like the hottest CVLIFE tactical sniper riflescope. Getting a premium Rifle Scope within a tight budget isn’t a piece of cake. Free shipping. eBay Product ID (ePID) 630721471. CVLIFE scopes come with a built-in 20mm scope mount for any rifle and gun you might have. High performance optical scope with fiber optic sight for quick and accurate acquisition Crisp image for accurate shooting. Tactical Rifle Scope 3-9X40 Red Green Illuminated Optics Hunting Gun Scope . With the green multi-layer coated lenses, the tactical compact scope can shoot target fast and precisely with high light transmission and resolution This scope has a solid aluminum build along with a splash resistance rating to hunt in harsh terrain and diverse areas. $63.99 $ 63. No matter how harsh the environment is, the lenses and the shade combined will keep the fog, rain, and dirt out of your sight. These are the CVLIFE scope reviews to help you find the best value for your money with your first rifle scope: This CVLIFE Tactical Rifle Scope comes with Multi-Coated optical lens glass, which gives you a high dynamic view, sharp, bright, and detailed image of the target. We have come up with the CVLIFE scope reviews to make sure you’re getting the best build quality with the outstanding features. Illuminated. The magnification level of this scope is 3 times up to 9 times the original size of your sight. CVLIFE 4*32 Tactical Rifle Scope Tri-illuminated Rapid Range Fiber Optic Sight. With the green multi-layer coated lenses, the tactical compact scope can shoot ⦠C $59.62. Unlike a tripod, tactical bipods allow for quick and dramatic changes of position with little setup, while the stability improvements give you an edge on the shooting range or hunting trail. CVLIFE has a great number of options in its rifle scope line up. Why go for CVLIFE 6-24? Both the red and green illumination modes have 5 different intensity levels. An overview of the low cost CVLIFE 4x32 Compact Rifle Scope from amazon. The feature is also active in CVLIFE 3-9*40 Power Scope though it is much useful in CVLIFE 6-24*50. It also comes with a scope mount attachment for easy contact with your rifle rail in no time. It has a zero locking feature of the adjustment dial with multiple adjustment stages. A proper rifle scope can bring the better version of you on the field. This feature may be very new in the CVLIFE Scope, but it does exceptionally well. Shooting/hunting rests have long been used as a great way to improve aim when you're at the range, but for a more mobile option, using a bipod is the way to go. Details about 3-9 x40 CVlife Hunting Riflescope R4 Mil-dot Tactical Optics Scope with 2x Mount Easy to set, Be Precise, US stock, Fast to get. There should be no limitations whatsoever for a sniper rifle shooter when using a rifle. The adjustment knob of this scope has a windage adjustment function in it. CVLIFE tactical bipod is constructed of rugged, high-strength materials that include a fusion of milled 7075 aerospace Aluminiuman, stainless steel, carbon fiber and d polymer that is extremely strong. So, stick to the article to pick your new toy for the big game! CVLIFE Hunting Rifle Scope 6-24x50 AOE Red and Green Illuminated Gun Scope with Free Mount. CVLIFE 4-16×44 Tactical Rifle Scope Red and Green Illuminated Built. Not having to support the full weight of the gun will allow you to take more time lining up your shot before your hands shake from exertion. It is extremely durable but yet light weight, making it the perfect hunting bipod for deer hunters or other big game hunters who are packing in and need a light weight shooting bipod. CVLIFE 4x32 Tactical Rifle Scope Red & Green &Blue Illuminated Reticle Scope with Fiber Optic Sight. 3.8 out of 5 stars 18 ratings. C $47.70. The scope includes a special internal and external structure that helps control the interaction between the two, refl⦠The scope includes a Special inner and outer structure to control the interaction between the inner and outer tubes of the scope, which provides long lasting reliability in these interaction and ensures the reticle would not rotate when adjusting. The glove-friendly and tool-less button located between the extended legs allows easy adjustment between shot. You’re getting a Second focal plane in this scope, which stays the same in visual adjustment while you’re magnifying the target. If you’re shooting on a sunny day or the light condition comes in between you and your target, it comes with a built-in sunshade. This scope offers you the possibility of using both for hunting and shooting in any given environment and terrain. CVLIFE tactical bipods come with12-month warranty, covering defects in materials and workmanship. Shipped with USPS Priority Mail. You’re getting both a rifle scope and a laser sight, which makes it a 2 in 1 kit for a better target. This CVLIFE Tactical Rifle ⦠Save my name, email, and website in this browser for the next time I comment. They make almost anything related to optics and combat peripheral from hunting and shooting scopes to rock-solid bipods. Made with all the latest features, free rail mount, and précised marksmanship it is really a brilliant riflescope made for the expert shooters like you. CVLIFE Tactical 3-9×40 Riflescope. 4X. Find out the answer in the following sections: Affordability. Find many great new & used options and get the best deals for CVLIFE Rifle Scope 3-9x40 Optics R4 Reticle Crosshair Air Sniper Hunting Scopes at the best online prices at ⦠About this product. All the CVLIFE scopes are built sturdy, and they can adjust to any harsh environment with dust, rain splash, fog, and other natural problems. If you’re planning to get started with a scope that comes cheap yet delivers the best result, CVLIFE is the brand you choose. Free returns are available for the shipping address you chose. They are most popular because of their pricing for their premium optical gadgets. But when you have the CVLIFE scopes in your sight, the task becomes a lot easier than it starts with. CVLIFE 4-16×44 Tactical Rifle Scope Red and Green Illuminated Built, 2. The lenses of this scope are double-illuminated red and green for better light transmission. C $45.91. A hunter or range shooter is as good as his rifle scope allows him to be. 4.4 out of 5 stars 4,595. Disclaimer: Tacticalexposure.com is a Participant in the Amazon Services Llc Associates Program, an Affiliate Advertising Program Designed to Provide a Means for Sites to Earn Advertising Fees by Advertising and Linking to Amazon.com.","domain":"optical_engineering"}
{"url":"https://infracomm.co.za/fiber-optic-evolvement/","date":"2022-07-04T05:27:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104354651.73/warc/CC-MAIN-20220704050055-20220704080055-00267.warc.gz","language_score":0.9251618981361389,"token_count":777,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__214696441","lang":"en","text":"The technical development of fiber-optic communications has advanced to a point where it is now well in advance of electrical and radio frequency transmission.\nThis development has highlighted several advantages, such as increased bandwidth, elimination of any spark hazard and increased security by the avoidance of any electromagnetic tapping procedure. Low maintenance, and being able to pack the ultra-thin fiber-optic cables, are also benefits.\nMeeting The Challenge\nThere are several options to consider when bringing fiber-optics to the end user. These include both active and passive optical networks. Within passive optical networks (PON), there are three primary options – broadband, gigabit and Ethernet.\nThe gigabit passive optical network (GPON) is the speediest of the three options.\nThis is How GPON Works\nThe gigabit passive optical network (GPON) is based on the ITU-T G.984 standard. It replaces the G.983 standard.\nA single network is made up from an optical line terminal – the property of the service provider – a splitter and up to 64 optical network units. This network does not have to be located on the end user’s premises, but it does serve a single customer. Its task is to convert the optical signal to electrical or radio frequency signals to produce a connection to the customer’s equipment.\nThe best network units (ONU) are also referred to as an optical network terminal (ONT).\nThe ONT is usually located on the customer’s premises, but the ONU can be positioned within 20 kilometres of the end user. Apart from this option, the services delivered by both networks are identical.\nAll information travels over the short-wavelength infrared band employing wavelength division multiplexing, with the data traveling over a 1490 nm signal at a maximum speed of 2.488 gigabits per second.\nThe next generation of gigabit passive optical network (GPON) will be known as 10G GPON or XG-PON. It will offer symmetric 10 Gb/signals upload and download speeds.\nMost GPON customers are homes and small business enterprises, where technology data, voice and IP video needs are best delivered by gigabit passive optical networks. The system can also be configured with a radio frequency overlay at 1550 nm to provide standard cable videos.\nIs GPON the First Choice?\nProvided it meets certain conditions, GPON technology is the most cost effective.\nThe optical network terminal (OLT) is relatively costly, so the number of optical network units (ONU) connected to it should be in the 32 to 64 user range. More than 32 units requires a second terminal port, with a minor cost increase.\nThe more users of an OLT, the more likely degrading during peak usage.\nA passive optical network offers the twin advantages of low maintenace costs and an extended mean time between failures (MTBF), since passive components seldom fail.\nA GPON can replace existing copper wire cabling and deliver higher data speeds with more reliability. High density areas require less fiber and allows development of ONU and OLT networks.\nIn a large office building, for example, it is advisable to install an optical line terminal on the premises, or opt for a more compact optical line terminal, which need not be located in a central office.\nThe Need for Sense and Sensibilty\nWhilst the worldwide move to a gigabit passive optical network is growing, there are competitors in the intelligence technolgy field that make claims for support. Allowing for rapid advancement in services and development of system structures, it is time for service providers to make decisions that are based on practicality and cost efficiency.\nThinking about GPON? Infracomm has a solution for you.","domain":"optical_engineering"}
{"url":"https://xn----8sbnngldieegogmnc8o.com.ua/vopros/251/cheap-solar-led-light-controller","date":"2019-07-20T16:43:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195526536.46/warc/CC-MAIN-20190720153215-20190720175215-00067.warc.gz","language_score":0.7719849944114685,"token_count":302,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__205011072","lang":"en","text":"|MPPT1050-DCLiR is a sort of Street light solar charge controller.|\nMPPT1050-DCLiR is based on the technology of infrared automatic control products. When someone enters the induction range, the special sensors will detect the change of the human body infrared spectrum, then automatically connected to the load. If people don't leave the induction range, the light will be continuous light. When the person leaves, the load will be automatically turned off. MPPT1050-DCLiR is a really friendly and convenient, safe and energy-saving Street light solar charge controller.\nThe street light solar charge controller is fit for 12V system voltage, 10A maximum charging current, 60W maximum load power, Innovative MPPT technology, tracking efficiency >99%.\nFull digital technology, high charge conversion efficiency Up to 96%, and discharge conversion efficiency up to 95.5%.\nSelf consumption: 6mA\nLoad output power: 1-60w, output voltage range: 20-45V, Load current setting range: 0.1-3.0A, Min working power: 0.3W (power reduction),Load current accuracy:±2%\nMax Power of Solar panel: 100W (3 series)~120W(4series).\nMPPT tracking range: (Battery voltage + 1V) ~ 0.9 * Voc\nMax voltage of solar panel VOC: 45V\ncheap Solar Led Light Controller","domain":"optical_engineering"}
{"url":"https://www.wjautomationcorp.com/products","date":"2019-09-21T13:50:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514574501.78/warc/CC-MAIN-20190921125334-20190921151334-00133.warc.gz","language_score":0.9017474055290222,"token_count":247,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__172611880","lang":"en","text":"Cognex advanced machine vision & industrial barcode reader systems deliver instant improvements to any manufacturing process, enabling products to be made at higher speed, without defects and at lower cost.\nOpto Engineering THE TELECENTRIC COMPANY has evolved through the years, releasing hundreds of new, diverse products and developing multiple areas of expertise. Today we can say that we specialize in OPTICAL IMAGING TECHNOLOGIES.\nAnMo Electronics Corporation has been at the forefront of the image digitization sector since 2000 and as such is at the heart of the design and development of digital microscopes in Taiwan. Over the years, the Dino-Lite series digital handheld microscope and Dino-Eye series microscope eyepiece have evolved and expanded to better serve our customers, covering major markets in five different continents through our comprehensive network of distributors\nAllison Park Group, Inc. manufactures camera & lighting enclosures for harsh industrial environments. APG supports cameras from most manufacturers, including Cognex/DVT, Keyence, PPT, and Vision Components. APG offers housings for explosion-proof environments, food (FDA) applications, and washdown environments. APG also offers custom enclosures and OEM design solutions.","domain":"optical_engineering"}
{"url":"http://eicom.ru/producer/VLSI-Vision-Ltd/","date":"2018-01-20T22:54:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889736.54/warc/CC-MAIN-20180120221621-20180121001621-00010.warc.gz","language_score":0.7187657952308655,"token_count":234,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__89601084","lang":"en","text":"VLSI Vision Ltd.\nVLSI Vision Ltd. (acquired by STMicroelectronics in early 1999) is a leading designer and supplier of CMOS (complementary metal oxide semiconductor) image sensors, conceiving and developing a technology that offers maximum scope for integrating image capture and image processing on the same silicon chip. Its products have been successfully utilised in a wide variety of applications, including desktop video conferencing, digital still cameras, security, biometrics, automotive systems and toys.\nVLSI Vision Ltd. производит полупроводниковые компоненты.\nТакже в разделе «Производитель»\nНовости рынка электронных компонентов","domain":"optical_engineering"}
{"url":"https://www.phyhomelife.com/products/gad-1-gclid-cjwkcajwyqwkbhbmeiwap2yufjigslflwpovb_lmahrp8qfhcfcwictk8rjubikwowgfgw50h0pt9hoc4fuqavd_bwe","date":"2023-10-02T15:35:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511000.99/warc/CC-MAIN-20231002132844-20231002162844-00506.warc.gz","language_score":0.8773869872093201,"token_count":726,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__309848732","lang":"en","text":"Wallfire 5 lenses Head Mount Magnifying Glasses with\nLed light Specification: Product Material: acrylic lenses + ABS +\nmetal Magnifying Glass Size: 95 * 42mm\nFrames Size: 222mm * 145mm * 65mm\nSingle-lens lens magnifications: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X Field of View: 555mm (1.0X), 381mm (1.5X), 278mm (2.0X), 183mm (2.5X), 156mm (3.5X)\nBattery: 3 * AAA (Not included)\nPackage Contains: 1 * Reading Eyeglass 5 * Acrylic lenses: 1.0X, 1.5X, 2.0X, 2.5X, 3.5X 1 * glasses storage case 1 * Elastic Band Wallfire head Magnifier is a hands-free, head-worn magnifier included with 5 precision cut interchangeable acrylic lenses: 1.5x, 2x, 2.5x and 3x power magnifications.\nOnce clipped onto the headset, the lenses can extend up to about an 85 degree angle if they are not needed for magnification.\nThe Headband Magnifier Deluxe includes an adjustable headband with a quick release button which allows for smooth and easy adjustments for different head sizes.\nThe LED lighted lamp (3 super bright lights) adjusts to about 30 degrees to right or left and about 90 degrees up and down to allow for adjustable lighting exposures.\nThe LED lamp can also be used as a removable, free-standing light source as it contains a magnetic base. The LED lights are powered by 3 AAA batteries (not included).\nThe head visor magnifier is perfect for all hobbies, crafts, reading books, magazines, newspapers, model building, jewelry design and other low vision tasks!\nIt is a great option for jewelers, coin and stamp collectors, hobbyists, watch makers, small electronics, arts & crafts, sewing, knitting, auto mechanics, soldering, seamstresses along with so many other low vision needs.\nHeadband Magnifier is lightweight, comfortable and has an ergonomic design.\nIt can be used to fit along with reading glasses as well.\nIntroducing the Headband Magnifier with LED Light, the perfect hands-free reading magnifier glasses for all your needs.\nThis magnifying glass comes with 5 detachable lenses of varying magnifications, including 1.0X, 1.5X, 2.0X, 2.5X, and 3.5X, allowing you to choose the perfect lens for your specific task.\nThe magnifier is made of high-quality acrylic lenses, ABS, and metal, ensuring durability and longevity.\nWith a field of view ranging from 555mm (1.0X) to 156mm (3.5X), this magnifying glass is perfect for reading, jewelry inspection, and electronic repairs.\nThe magnifier is also equipped with 2 LED lights, providing bright and even illumination for all your magnifying needs.\nThe head mount design ensures that your hands are free to hold objects or turn pages, making your tasks much easier and more efficient.\nThe Headband Magnifier with LED Light is powered by 3 AAA batteries (not included), and comes with a glasses storage case and an elastic band for added convenience and comfort.\nGet your hands on this professional and reliable magnifying glass today and make all your magnifying needs a breeze!","domain":"optical_engineering"}
{"url":"https://www.govisionusa.com/product/hd-yellow-polarized-lenses/","date":"2024-02-27T19:26:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00604.warc.gz","language_score":0.9051081538200378,"token_count":156,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__110960284","lang":"en","text":"Govision Lenses For Camera Glasses\nIguana Yellow lenses are perfect for particular outdoor activities such as skydiving, hunting, flying, and climbing. Iguana Yellow has become the standard in aggressive outdoor activities as they provide exceptional depth perception and dramatic contrast in low light. They also improve contrast and provide a sensation of heightened visual keenness in hazy and shadowy conditions.\nLenses Available For:\nPRO HD 1080P, PRO2, PRO 3 and SOL Bluetooth\nThis lens is useful for those who work in front of the computer, drive, golf, mountain biking, skiing, shooting, and tennis. Perfect for hd video capture like the Pro 3.\nThese lenses can help during partly cloudy, foggy, hazy, and low light surroundings","domain":"optical_engineering"}
{"url":"http://buyersguide.signsofthetimes.com/listing/fluorescent-replacement-systems","date":"2020-07-04T17:35:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655886516.43/warc/CC-MAIN-20200704170556-20200704200556-00404.warc.gz","language_score":0.8588330149650574,"token_count":349,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__11599472","lang":"en","text":"Listings in Fluorescent Replacement Systems\nGE Lighting Solutions offers a wide variety of LED products, including the TetraMax line for channel letters, which offers a 150-degree viewing angle and a rated life of 50,000 hours.\n1975 Noble Rd.\nCleveland, Ohio 44112-6300\nThis family owned and operated manufacturer is uniquely structured to set your business apart. Driving innovation and making it accessible to the marketplace for over 30 years.\n44 Harbor Park Drive\nPort Washington, New York 11050\nin Border Lighting Systems, Cabinet-Sign Modules, Channel-Letter Modules, Fluorescent Replacement Systems, Lightboxes, Ribbon Components, Wall-Washing Systems, Solar-Powered Sign Lighting, Drivers, Connectors\nLUMIRON is an LED lighting manufacturer since 2001. Headquartered in Miami Florida, Lumiron has a team of highly qualified engineers and specialists experienced in the LED lighting industry. We have standard and custom products all made in the USA.\n20725 NE 16 AVE # A-33\nAllanson is a leader in delivering lighting solutions to the Sign Industry. Allanson offers a quality line of LED retrofit direct fluorescent replacement lamps, RGB Lighting Systems, Rigid Border Tubing, Power Supplies, and more.\n83 Commerce Valley Drive East\nMarkham, Ontario L3T7T3\nFRANCE Lighting Solutions\nManufacturer/supplier of neon transformers, LED power supplies, and sign components. Products include neon transformers, LED drivers, LED Fast Pak Kits, LED Sign Bright Kits, transformer cans, LED boxes, toggle switches, glass housings, and more.\n2268 Fairview Blvd\nFairview, Tennessee 37062","domain":"optical_engineering"}
{"url":"http://bartlettandaustin.co.uk/myiopia","date":"2024-03-03T09:21:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476211.69/warc/CC-MAIN-20240303075134-20240303105134-00023.warc.gz","language_score":0.9309701919555664,"token_count":379,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__206034652","lang":"en","text":"Myopia (short sight) is currently estimated to affect 30% of the worlds population, and this number is projected to be nearly 50% by 2050. Widely considered to be driven by environmental factors such as decreased outdoors time and increased near work and screen time.\nThe risk of myopia in children is increased if one or even more so if both parents have myopia.\nWhy is it a good idea to reduce myopia?\nWith increasing axial elongation of the eye in myopia comes the stretching and thinning of the retina. Making it more vulnerable to future eye health risks such as retinal detachment, myopic macular degeneration and posterior subcapsular cataract.\nOptical Management of Myopia\nUsing peripheral defocus technologies for reducing the progression of childhood myopia without the need for contact lenses\nThanks to the H.A.L.T technology Essilor Stellest lenses slow down progression of myopia by 67% on average compared to single vision lenses, when worn for 12 hours a day.The treatment zone of the lens is made of a cutting edge constellation of 1021 invisible lenlets. On top of bringing sharp vision like a single vision lens, this constellation creates a signal in the childs eye acting as a shield against eye elongation.\nContact lenses that are worn overnight, which can slow the rate of progression of myopia, as well as allowing freedom from spectacles or contact lenses throughout the day.\nSoft Daily contact lenses\nMySight 1 day with ActivControl technology is a soft daily disposable contact lens specially designed for myopia control in children.\nIt has been shown to reduce progression on average by around 59% over 3 years.\nBook an Appointment\nTo find out if your child is suitable for Myopia Control book an appointment to discuss the options with one of our optometrists.","domain":"optical_engineering"}
{"url":"https://shop.akhurst.com/canada/fpimlm1410w-g.html","date":"2020-08-08T06:19:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737289.75/warc/CC-MAIN-20200808051116-20200808081116-00002.warc.gz","language_score":0.7919454574584961,"token_count":138,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__78176436","lang":"en","text":"MLM Uniform Red Alignment Lasers\n- Generates a completely uniform (non-Gaussian) line, as it includes special Powell Lens\n- Brightest red laser\n- Its unique desing makes it perfectly watertight.\n- A wide range of optional brackets and standard are available\n- Anodized aluminum housing\n- 12' cable\n- Weight: 13.4 ounces (388 grams)\n- Length: 3\"\n- Diameter: 3/4\"\n- Fan Angle: 60 degrees\n- Operating Temperature: 14~95 degrees F (-10~35 degrees C)\nWelcome to Akhurst\nPlease select a site:\nRemember my choice.","domain":"optical_engineering"}
{"url":"https://icedrill.org/library/studies-melting-ice-using-co2-laser-ice-drilling","date":"2023-02-09T09:08:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501555.34/warc/CC-MAIN-20230209081052-20230209111052-00075.warc.gz","language_score":0.7274649143218994,"token_count":449,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__206174679","lang":"en","text":"|Title||Studies of melting ice using CO2 laser for ice drilling|\n|Author(s)||Toshimitsu Sakurai , Haik Chosrowjan, Toshihiro Somekawa, Masayuki Fujita, Hideaki Motoyama, Okitsugu Watanabe, Yasukazu Izawa|\nCold Regions Science and Technology\nA CO2 laser can be used to melt ice. Here we use a CO2 laser at 10.6 μm, a wavelength at which ice strongly absorbs, to drill (via melting) through ice. The resulting drilling speed is measured at several irradiation intensities, ice-snow densities, and beam angles relative to the horizontal axis. The speed increases nearly in proportion to the laser intensity. For an intensity of about 50 W/cm2, for instance, the melting speed is 4 mm/s for snow of density 153 kg/m3 and 0.8 mm/s for solid ice. Results also show that for downward beam angles, melt-water accumulates in the hole, reducing the drilling speed. Nevertheless, we also consider other laser mediums and argue that an optical-fiber-coupled laser drilling system could be used for drilling on glaciers and ice sheets.\n|Citation||Toshimitsu Sakurai , Haik Chosrowjan, Toshihiro Somekawa, Masayuki Fujita, Hideaki Motoyama, Okitsugu Watanabe, Yasukazu Izawa ( 2016 ) Studies of melting ice using CO2 laser for ice drilling. Cold Regions Science and Technology , 121 , 11-15 . doi: 10.1016/j.coldregions.2015.09.014|","domain":"optical_engineering"}
{"url":"https://51funongyuan.com/fluorescent-high-bay-fixtures/","date":"2024-02-26T05:35:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474650.85/warc/CC-MAIN-20240226030734-20240226060734-00798.warc.gz","language_score":0.9400025010108948,"token_count":504,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__124475176","lang":"en","text":"Fluorescent High Bay Fixtures\nThe function of high bay lighting is to light surface which are more than 15 feet away. Some common kinds of high bay applications can be seen in gymnasiums, warehouses and factories etc. All lamps which are used in applications are consists of mercury (High-Bay Lighting: Opportunities for Mercury Reduction and Energy Efficiency, 2003, p 1, para 1). In recent times, both high intensity fluorescent technologies (HIF) and HID have gained popularity but the performance of HIF technology is facts about led street light understood better in many applications that is which has given HIF opportunity to gain market share. The improved technology of fluorescent lamps and the invention of new HIF fixtures have composed the most cost effective choice as fluorescent lighting for indoor areas like warehouses, big retail stores, factories and athletic facilities (Lighting: HID Versus Fluorescent for High-Bay Lighting, 2007, p 1 para 1).\nHistory of fluorescent lighting:\nGenerally people associate lighting and lamps with incandescent light bulb which was invented by Thomas Alwa Edison and some other inventors. These kinds of bulbs perform on the basis of electricity and filament. When these bulbs are heated by electricity, the filament gets high temperature so it glows and gives light. Fluorescent bulbs like arc and vapor perform differently. The light does not come due to heat; it is produced through the chemical reactions, which happen when the application of electricity is on different gases encircled in a glass void compartment (The History of Fluorescent Lights, 2009, para 1).\nIn 1857 Alaxandre E. Becquerel discovered the fact of fluorescence and phosphorescence. He imagined the creation of fluorescent tubes as same as they are made presently. He did some experiments on coating electric discharge tubes, which were combined with luminescent materials. This was the procedure which further expanded in fluorescent lamps (The History of Fluorescent Lights, 2009, para 2).\nIn 1901 Peter Cooper Hewitt got exclusive rights on the first mercury vapor lamp (The History of Fluorescent Lights, 2009 para 3). His low pressure mercury arc lamps became the very first of its kind for today’s modern fluorescent type. Edmund Germer discovered a high pressure vapor lamp which helped in producing economical light with less heat. In 1927 he copyrighted an experimental fluorescent lamp. Some historians give Edmund Germer the credit of inventing the first true fluorescent lamp (The History of Fluorescent Lights, 2009, para 7).","domain":"optical_engineering"}
{"url":"https://gojotraders.in/product/optoma-cx36h-3600-ansi-lumens-projector/","date":"2024-04-18T17:04:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817222.1/warc/CC-MAIN-20240418160034-20240418190034-00588.warc.gz","language_score":0.7424501776695251,"token_count":100,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__29596086","lang":"en","text":"OPTOMA CX36H PROJECTOR\n◼️ Bright 3,600 ANSI lumens\n◼️ Powerful audio with built-in 3W speaker\n◼️ ECO+ mode for extended lamp life up to 15,000 hours\n◼️ 22,000:1 high contrast\nThe CX36H is designed for business and education, provides 3,600 lumens of brightness and XGA image quality, offers necessary functions and best value.","domain":"optical_engineering"}
{"url":"https://www.shaydz.co.uk/pages/myths-about-polarised-lenses","date":"2021-03-08T12:36:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178375439.77/warc/CC-MAIN-20210308112849-20210308142849-00242.warc.gz","language_score":0.9279208183288574,"token_count":949,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__153071854","lang":"en","text":"Myths about Polarised lenses.\nHere we have some more information about some common myths connected to polarised lenses. The reason we have included all this content is mainly because our wooden sunglasses are protected with Polarised lenses throughout our range. Giving only the best vision in all light conditions.\nMyth: Polarised Glasses Fully Block Glare\nThe concepts of glare and polarisation are complicated, as are the interactions between the two. Normal light moves on many planes. When light waves bounce off of a reflective surface, however, they become polarised. Polarised light moves mostly along one plane. A polarised filter most effectively blocks light that is polarised at a 90-degree angle with respect to the axis of the filter. More light is reflected and therefore polarised horizontally rather than vertically. Therefore, polarized sunglasses are vertically polarized. This drastically reduces horizontal glare. However, the interrelationships between types of glare, polarisation of both the glare and the filter, and the angle of the sun mean that polarized sunglasses will not effectively block all glare at all times. Polarised sunglasses do maintain the traditional features of sunglasses. While your polarised glasses may not perform their polarisation duties perfectly at all times, they will cut the brightness of ambient light. Polarised glasses cut the intensity of light by at least half. As with normal sunglasses, you can choose the level of darkness that you would like.\nMyth: Polarised Glasses Are Expensive So They Must Be Good\nActually, price is no guarantee of quality.\nMany very expensive polarised sunglasses do not meet industry standards for UV protection. Likewise, many inexpensive sunglasses are polarised and meet or exceed industry standards. Be sure to read the UV protection label on any sunglasses you are considering to see if the glasses are in compliance.UV protection blocks dangerous ultraviolet light from reaching your eyes. Both UV-A and UV-B rays are harmful to the eyes as well as skin. Polarization does not block UV rays. A separate material must be added to polarized glasses to absorb the harmful radiation.You will also need to ensure that the glasses you are considering are truly polarised. Many sunglasses have a test tag that you can use. Look through the glasses at the test tag, and then rotate the lenses 90 degrees. You should notice a significant darkening effect. If there is no test tag, look through two pairs of polarised glasses while rotating one pair 90 degrees. You should see an obvious blocking of light. Of course, most glasses are as advertised; but when paying extra for a particularly feature, it is good to be sure. All SHAYDZ sunglasses lenses are fully UV-A and UV-B protected.\nMyth: Polarised Glasses Help In Driving\nThis myth is basically true, depending on the angle of the sun. On bright, sunny days, the sun’s light reflects off the shiny metal of cars. Light also reflects off of the asphalt of many road surfaces. Polarised glasses can block some of the reflected light, reducing dangerous glare and making driving safer.\nMyth: Polarised Sunglasses Make it Difficult to See LCD displays.\nThis myth is completely true. When the display is viewed from certain angles, it may actually disappear. This has to do with the nature of the liquid crystal display (LCD). The light is polarised in such a way that the polarized glasses can make it disappear entirely. Always remove your polarised glasses before using an ATM or other LCD display.\nMyth: Polarised Sunglasses Allow Boaters to See Through Water.\nDue to the nature of water’s reflection of light, polarised lenses can make it easier to see underwater objects. The polarizing filter is vertical, while most of the reflected light of the water’s surface is horizontally polarised. The polarised glasses, therefore, can dramatically reduce glare from the water.Additionally, polarised glasses cut the reflected light from other objects such as rocks. The light below the water’s surface is polarised vertically, so the vertically polarized glasses make the water appear darker. However, the lack of reflected light makes the water seem more transparent. Of course, the angle of the sun affects the amount of light that is polarized, thus affecting the ability to see more clearly. Polaried glasses are a widely popular option in today’s market. Polarised glasses are able to reduce glare and improve vision in bright conditions. However, like any other product, polarised glasses have their advantages and disadvantages. Take the time to become educated about the way polarised sunglasses work. By being an informed consumer, you will be able to decide whether polarised glasses are right for you.","domain":"optical_engineering"}
{"url":"https://www.inthesnow.com/gear/bolle-nevada-goggle-with-phantom-lens/","date":"2024-02-20T22:44:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473347.0/warc/CC-MAIN-20240220211055-20240221001055-00297.warc.gz","language_score":0.8358665108680725,"token_count":295,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__91297517","lang":"en","text":"Featuring a high contrast Green Emerald PHANTOM lens with a tint that changes with the light from cat.1 to cat.3, the Bollé Nevada PHANTOM gives superior optical clarity and enhanced vision whatever the conditions. This cylindrical frameless goggle is a big hit with Team Bollé athletes including Dave Ryding.\nWe love the look of this goggle and the addition of the PHANTOM lens provides an impeccable visual experience. This is a goggle packed with high tech features, making it the perfect combination of style and performance.\nThe Nevada Phantom lens have a double lens, which creates a thermal barrier between the cold-dry air outside on the mountain and the moisture inside the goggle. This prevents the formation of pesky condensation, while an anti-fog treatment is also in action to ensure no fogging either. Flow-tech venting promotes directional airflow across the inner lens, which further reduces the potential build up of moisture.\nOn the outside of the lens, Carbo-Glas Anti-Scratch technology means you can be safe in the knowledge that your lenses are highly protected, reducing scratching and keeping your visuals crystal clear.\nOf course, the lenses also contain Bollé’s high levels of UVA/UVB protection, blocking rays up to 400 nanometers.\nAvailable at: www.bolle.com\nCarbo glas anti-scratch\nOptical clip compatible","domain":"optical_engineering"}
{"url":"http://dantehfxi050.fitnell.com/5095066/eye-surgical-treatment","date":"2018-10-23T03:11:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516003.73/warc/CC-MAIN-20181023023542-20181023045042-00096.warc.gz","language_score":0.9599630236625671,"token_count":1329,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__110508073","lang":"en","text":"Eye Surgical procedure has actually become a mainstream method of vision modification, as well as this write-up will discuss the benefits and also negative aspects of three various techniques being offered to the medical consumer.\nLasik Eye Surgical treatment\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and is an eye medical system which permanently deals with vision by removing a slim layer of the cornea. This treatment works best on clients with moderate to high levels of nearsightedness (nearsightedness), reduced to modest levels of hyperopia (farsightedness) and also astigmatism connected with nearsightedness, as well as who have thick corneas. It is one of the most popular medical vision improvement approach.\nPeople with regular eye sight see items clearly since photos are brought right into a correct focal point by the cornea and also lens of the eye. Ideally, the cornea's curvature is equally matched to its size in a normal eye. People with astigmatism, nearsightedness or hyperopia have actually off-and-on shaped corneas, so the items seen are not focused effectively. LASIK changes corneal form by exact elimination of corneal tissue, as well as by doing so remedies the eyes' focusing power.\nThere are, however, risks to LASIK eye surgical treatment.\nThere is a remote possibility of complete loss of vision. If this happens, it is normally because the individual had a pre-existing problem which should have precluded the surgical treatment to begin with, such as maternity, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. People with big students are likewise inadequate prospects for LASIK. Dry eye disorder will certainly be aggravated by this procedure.\nA few patients whine that they permanently see \"ghost\" photos, have actually blurred vision, lessened comparison as well as poor evening vision. When LASIK wased initially presented, 5% of clients had post-operative complaints; nevertheless, refinements in the treatment have triggered this price to drop to less compared to 1% if LASIK is executed by experienced practitioners as well as individuals are appropriately screened prior to surgical procedure. If troubles do occur, they can typically be resoved by a retreatment.\nFDA has actually authorized LASIK laser eye surgery since 1998. While there are a lot of satisfied clients, there are nevertheless no long term research studies about its effects. Understand the limitations as well as the risks of LASIK eye surgery before you sigh for the procedure.\nThough much less well known, these tiny implants can improve vision in individuals with mild to modest myopia without the risk of long-term eye damages fundamental click over here now in the cells removal technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to presume a flatter shape. Though somewhat much less exact compared to LASIK, they are removeable and replaceable, so if the person has an unforeseen over- or under-correction, the implant could be gotten rid of as well as one more of a various size placed to get the preferred correction. The implants lie at the edge of the cornea, so the main visual area is completely intact and intact, and also the stamina of the cornea is undiminished, making it a better alternative for pilots and those who take part in get in touch with sports where eye injury is a possibility.\nIntacs are unsuitable for serious myopia and more than minor astigmatism (1.00 diopters), as the cornea can just be extended up until now. If the Intacs are gotten rid of, vision returns to its preoperative level. Besides vision modification, Intacs are likewise utilized to deal with keratoconus.\nIntacs are FDA accepted as well as One Decade researches have revealed no major problems with Intacs as well as very few patient complaints; however, since the procedure takes a lot more training compared to LASIK, there are fewer eye surgical treatment centers supplying it. However, the Intacs web site provides a checklist of practitioners in each state, as well a few in Canada, Europe as well as Mexico.\nSince many people do not want to visit our website run the risk of LASIK as well as Intacs could not aid those with extreme vision troubles, intraocular lens implants (IOL) are a brand-new option accepted by the FDA in 2004 to correct moderate to extreme nearsightedness. The Artisan lens, manufactured by Ophtec, is similar to the type of lens implant used to restore vision adhering to cataract eye surgery.\nThe brand-new IOL, called the Artisan, is intended for just clients who have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not change the all-natural lens, but is inserted in front of it. The major problem found with the implant was the constant loss of endothelial cells in the corneas of people who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are crucial in maintaining the cornea clear. A three-year research study showed a continuous constant loss of endothelial cells of 1.8 percent a year. Now, nobody could anticipate whether this loss will continue at the exact same price forever, or even its effect on corneal feature.\nTo decrease long-lasting effects of the device on the corneal endothelium, the FDA is requiring that the new lenses be labelled to specify that they must just be implanted in people whose corneal endothelial cells are thick adequate to hold up against minor cell loss.\nA lot more serious complications were couple of: retinal detachment (0.6%), cataract development (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up study of its dental implant individuals to much better assess the post-surgical occurrence of cataract advancement, retinal detachment and other ocular conditions.\nThe Craftsmen lens is meant to be a long-term implant.Though it can be removed operatively, vision might not constantly return to exactly what it was before getting the lens. Since it does not affect astigmatism, individuals with this problem may still call for glasses.","domain":"optical_engineering"}
{"url":"https://thirdeyephotographycolorado.com/should-you-buy-a-camera-lens-for-your-smartphone/","date":"2023-11-29T18:56:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100135.11/warc/CC-MAIN-20231129173017-20231129203017-00722.warc.gz","language_score":0.9482371211051941,"token_count":418,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__202166379","lang":"en","text":"Today’s smartphones are equipped with some impressive photographic technology. Even though DSLR cameras are still more advanced in terms of features and the lenses that can be used, smartphones are more convenient to carry around, plus we almost always have them with us.\nSo, does it make sense to purchase a camera lens for your smartphone?\nA lens can help you to overcome some common smartphone camera limitations. For one, the lens on your smartphone is small, which means only so much light is able to filter through. The digital zoom function, while handy, also usually ends up pixelating your images. Both of these limitations can be overcome with the right lens.\nWhether or not you should purchase a smartphone camera lens is dependent on what you usually do with your DSLR camera, how often you take photos, and what you want to use those photos for. A lens will definitely provide you with more possibilities and enhance the overall quality of your pictures. It also gives you the option to edit your photos in a photo editing app instead of using filters.\nMost people who have purchased smartphone camera lenses in the past have said it wasn’t worthwhile. However, photographers who want to look at making money with smartphone photography would definitely benefit from purchasing one or more lenses.\nThe Types of Smartphone Camera Lenses\nHere are the types of lenses you can purchase for your smartphone camera:\n– Wide Angle. If you love taking street or landscape photos, wide angle lens is a must. It also works well for food photography.\n– Telephoto. If you want to be able to capture moments from a distance without losing picture quality, this lens will help you achieve that.\n– Macro. If you want to capture more detail and texture in your images, a macro lens is ideal.\n– Fisheye. A fisheye lens is ideal for those creative projects.\nIf you are considering buying a camera lens for your smartphone, be sure to do your research on the different brands that are available and find out what will work best for your phone.","domain":"optical_engineering"}
{"url":"https://www.cbs42.com/business/press-releases/cision/20230322CN49057/prazen-to-present-innovative-ar-solution-at-awe-2023/","date":"2023-06-11T00:11:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646652.16/warc/CC-MAIN-20230610233020-20230611023020-00325.warc.gz","language_score":0.9076735377311707,"token_count":902,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__126707638","lang":"en","text":"Cision PR Newswire\nPRAZEN To Present Innovative AR Solution at AWE 2023\nNews provided byPRAZEN\nMar 22, 2023, 9:21 PM ET\nSEOUL, South Korea, March 22, 2023 /PRNewswire/ -- PRAZEN (CEO/Heekyung Kim), a Korean startup specialized in optics for augmented reality (AR) products will present unique new AR glasses and an AR projector at AWE 2023 (May 31 -June 2, Santa Clara, California, USA).\nThe AR glasses of Prazen has a peculiar optical layout of \"Direct Projection\", unlike the other previously announced AR glasses. PRAZEN's AR optical module shows much higher light efficiency since it projects lights from micro display into the user's eyes directly while maintaining smaller size of optical module. Up to now, most of the compact-sized AR optical modules have adopted waveguides to minimize the size of AR optical modules, however, the waveguide based optical modules are suffering from the light loss caused by the internal reflection in the waveguides and the reduced diffraction efficiency of related subparts. The light loss of the waveguide based AR glasses causes low light efficiency and dark AR images to the wearers, which let them go through uncomfortable visual experiences, just like wearing dark sunglasses in indoor darker environments. PRAZEN's \"Direct-Projection\" based AR optical module eliminates the waveguides for their AR glasses, and it shows striking optical performances, highest light efficiency up to 50%, wider field of view up to 70 degrees, minimized module size up to 30cc, thinner combiner thickness up to about 2 mms.\nAt AWE 2023, PRAZEN will also exhibit another unique projection display based AI assistant device. It can \"pop up\" 27-inch sized image of an AI assistant human by voice recognition with a compact device. PRAZEN's new AI assistant device features compact size (about 500 cc), high brightness (about 1,000 lumen), lowest throw ratio (about 0.1) and convenient voice and finger touch interaction control. It is clearly different from the existing AI speakers with flat panels (LCDs etc.), in the sense that it can show large images without any cumbersome \"black\" panel frames. PRAZEN's projection based AI assistant can find its role as a smart home hub, and expand its application into a smart order system, transparent signage and automotive head up displays. The most striking feature of PRAZEN's projection based AI assistant device is that it can be used as an augmented reality display that can be seen without wearing AR glasses, by projecting AR images directly onto the real objects.\nPRAZEN is a company founded by optics experts from Samsung Electronics. They established PRAZEN after successfully finishing the \"C Lab\" project, Samsung's internal spin-off program. PRAZEN secures world-class projection optical technology composed with its own optical algorithm, PRAO®, and various high-tech optical material technology. PRAZEN's highest level optical projection technology enables the smallest optical module to have the widest projection viewing angle reaching up to 160 degrees, which exceeds the competitor's performance by 6 times. Wide viewing angle and compact module size are the key functional factors needed desperately for AR glasses. PRAZEN has applied this optical technology to provide most competitive AR glasses and AR projectors for various applications. All the compelling application features of PRAZEN's AR glasses and AR projectors are firmly based on the compactness of PRAZEN's optical module that can be produced only by the PRAZEN's own optical technology, PRAO®.\nPRAZEN has developed many intriguing AR glasses based total solutions for retail, manufacturing industry, education, and healthcare area. It recently supplied AR glasses and its navigation solution to an electric kick board company, and they are in the edge of massive expansion at sight-seeing business.\nView original content to download multimedia:https://www.prnewswire.com/news-releases/prazen-to-present-innovative-ar-solution-at-awe-2023-301779355.html\nNOTE: This content is not written by or endorsed by \"WIAT\", its advertisers, or Nexstar Media Inc.","domain":"optical_engineering"}
{"url":"https://www.drsaurabhshah.in/lasik-surat","date":"2023-09-30T12:56:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510676.40/warc/CC-MAIN-20230930113949-20230930143949-00595.warc.gz","language_score":0.8999614119529724,"token_count":630,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__240838724","lang":"en","text":"LASIK & Refractive Care\nLASIK stands for Laser In-Situ Keratomileusis. It is one of the surgeries that treat refractive errors of the eye, also known as Laser eye surgery - that can correct a wide range of vision imperfections like myopia , hypermetropia or astigmatism.\nLASIK enables freedom of clear vision! Lasik has quickly become the procedure of choice for most patients because they recover quickly and have fewer side effects and complications than with other methods of vision correction. The procedure is characterized by the creation of a flap in the cornea (the surface of the eye),and than a computer-guided excimer laser is used to reshape the cornea to correct the patient’s vision. The creation of the corneal flap improves results compared with traditional Custom Surface PRK (Photorefractive Keratectomy), and also helps to speed recovery and minimize discomfort.\nOver the years, Lasik has come a long way. With advance in technology, vision correction has now become an easy and extremely safe procedure. Lasik is the latest technology introduced for patients suffering from Myopia (near sightedness), Hyperopia (far sightedness) or Astigmatism.\nAfter LASIK Surgery ...\n☑ you should be able to say goodbye to glasses.\n☑ you’ll always know that you have the vision you need all the time, everywhere.\n☑ you can pursue your chosen career in the same way as anyone without the need to wear glasses or contacts.\nAt PRIZMA EYE CARE HOSPTIALS clearer vision can now be a reality !!!\nPRIZMA Eyecare Hospital has been doing LASIK procedure since many years. One of the first and the most experienced center in Surat. PRIZMA now offers the most advanced form of LASIK procedure.\nInformation about LASIK\nLASIK or Lasik, commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism\nDO YOU HAVE ANY QUESTIONS??\nFAQs about LASIK surgery?\nWhy PRIZMA Eyecare Hospitals for Lasik !!\nWe have made quality our habit. It’s not something that we just strive for – we live by this principle every day.\nAdvanced Pre-Lasik workup\nVisual ability of Cornea\nCorneal Topography and Pachymetry\nEvaluation of Retina\nAnalyze aberrations with the latest technology\nall these to achieve Personal Best Vision\n10000+ plus eyes corrected successfully for over a decade\nAdvanced technology to provide predictable outcome giving independence from Spectacle and contact lens.\nSingle use device\nFresh Consumables for each patient\nStrict OT protocol - Weekly swabs from OT, Daily sterilization of OT.\nAll these make the LASIK procedure at PRIZMA totally risk free.","domain":"optical_engineering"}
{"url":"http://www.jlapitan.com/2009/08/15/gadgets-by-joi/","date":"2013-05-23T09:37:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703108201/warc/CC-MAIN-20130516111828-00062-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.742588222026825,"token_count":321,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__33171967","lang":"en","text":"May mga bagong gadgets na pnkta sakin c joi serrano.. check it out\nNikon Coolpix S1000pj\nPhotos from http://www.nikonusa.com\nAstig tong camera na to\n- 12.1 Megapixels for stunning prints as large as 16 x 20 inches.\n- 5x Wide-angle Zoom-NIKKOR Glass Lens has a versatile zoom range that gets you close to the action while capturing expansive landscapes.\n- World’s first camera with an ultra-small, built-in projector provides new ways for enjoying your pictures anytime and anywhere.\n- Read more\nOne more gadget\nProject from the Palm of your Hand\nPhotos from http://www1.euro.dell.com/\n- Ultra Portable – At 92.5 x 104.6 x 37.1mm (3.64″ x 4.12″ x 1.46″) and a mere 360 g (0.80 lbs), you’ll hardly notice it’s in your laptop case.\n- DLP® and BrilliantColorTM technology – Millions of precision mirrors use light more efficiently to generate lifelike images and vibrant colours.\n- 858 x 600 SVGA Native Resolution – Displays up to 480,000 pixels with a 4:3 aspect ratio, right from the palm of your hand.\n- 800:1 typical (Full On/Full Off) Contrast Ratio – Projects clear images and easy-to-read text. Anytime, anywhere.\n- Read more","domain":"optical_engineering"}
{"url":"http://www.winghamoptometry.com/view/article_453.3conx","date":"2024-04-15T09:49:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00176.warc.gz","language_score":0.9650282263755798,"token_count":2037,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__145134595","lang":"en","text":"Specialty Contact Lenses\nNew lens designs and new materials have made contact lenses the choice for vision correction for many people who were not good candidates in the past. Soft toric lenses, which correct astigmatism, are now almost commonplace, as are daily disposable, extended wear and planned replacement lenses. The great majority of contact lens patients use some type of frequent replacement or multi-packaged lenses, making deposits on lens surfaces and other problems associated with standard daily-wear soft lenses a much less common complication.\nEyecare practitioners can now offer their patients lenses, soft or rigid, that are much more oxygen-permeable, allowing the cornea under the lens to breathe almost as well as with no lens in place at all.\nThere are also recent technology innovations that allow contact lens correction for patients with irregular or scarred corneas, or those with keratoconus to experience better vision than ever before, along with better comfort.\nIn the late 1950s, contact lenses were a brand new idea; how they fit, moved and their lack of oxygen transmissibility were poorly understood. The only material available to make contact lenses was polymethylmethacrylate (PMMA), a type of plastic that allowed no oxygen at all to pass through it.\nOne of the first lens designs was called a scleral lens, so named because it was very large, the edges resting on the sclera, the white of the eye. Both the upper and lower lens margins were well under the eyelids and they were large enough to cover the visible eye and then some. Because no oxygen could get through them, they were often fitted in such a way that an air bubble was captured under the lens. Even so, these scleral lenses were extremely uncomfortable and wear time was greatly limited, usually only about two to three hours.\nNow, scleral lenses have returned, this time with much better materials and lens designs that allow them to vault over a scarred cornea or one with an irregular shape. They provide\n- Sharper vision\n- Greater durability\n- Easier handling\n- Less risk of complications\n- More stability on the eye\n- Less risk of accidental loss or displacement\n- Comfortable all-day wear\nThere are three size groups of scleral lenses, depending on what is needed for best functionality. All modern scleral lenses are made with advanced, highly breathable gas permeable materials so plenty of oxygen can reach the cornea, regardless of lens size.\n- Corneo-scleral lenses and semi-scleral lenses. These are the smallest of the group, but are still much larger than standard rigid gas permeable (RGP) lenses. The edges of these lenses rest near the junction between the cornea and sclera.\n- Mini-scleral lenses vault over the entire corneal surface and rest on the front part of the sclera.\n- Full scleral lenses are the largest and provide the greatest amount of clearance between the back surface of the lens and the corneal surface.\nScleral lenses are particularly appropriate for patients with corneal scarring, such as from a continuing condition like keratoconus, or from accidental or surgical trauma. They are also used for patients with eyes that were once considered “hard to fit,” meaning that the shape of the eye made conventional RGPs either uncomfortable or too easily dislodged, or both. They are a good option for people who participate in sports, for example.\nAnother area where scleral lenses are coming into their own is in the patient population suffering from dry eyes. This is because the generous space between the lenses and the eye surface acts as a tear reservoir to keep the front of the eyes more comfortable and moist. Dry eye patients have never been particularly good contact lens candidates, until now; in fact, scleral lenses may become one of the best tools for treating this condition.\nScleral lenses are custom-made to the individual cornea by an eyecare practitioner to provide the best possible eye health, comfort and vision. Because the lenses are larger than conventional lenses, special fitting tools such as imaging devices are needed to measure the eye and in their manufacture. For these reasons, the cost of scleral lenses will be higher than those for conventional lenses, either hydrogel lenses (soft) or RGPs.\nIn some cases where there is a medical reason for the use of scleral lenses (as would be the case in keratoconus or accidental trauma scarring, for instance) part of the cost may be covered by either medical or vision insurance. Your eyecare practitioner can provide you with the specific costs for your highly individual eyes.\nSometime in the mid-1960s, eyecare practitioners began to notice that young myopic (nearsighted) people who were wearing contact lenses (there were no soft contacts until the early 1970s) were no longer becoming more myopic each year. The lenses had somehow stopped the progression usually seen in this patient population.\nEyecare practitioners began to research this phenomenon and many long-term studies were done to determine if this process could be controlled with the use of specific fitting techniques. Of course, now, with new materials available, orthokeratology (Ortho-K) is one option for reducing or eliminating myopia without surgery.\nOrtho-K is a reversible process that gently reshapes the cornea while you sleep; it is suitable for patients with mild to moderate myopia and mild astigmatism. An analogy of how it works is to consider ortho-K to be somewhat like wearing dental braces to straighten and realign the teeth to a specific position. The difference is that the cornea is a highly elastic tissue and it will always revert to its original shape and curvature. For this reason, once the desired reduction in myopia has been achieved, the lenses are worn during sleep so good vision without correction can be enjoyed during the day.\nThe main purpose of Ortho-K is to be free of both contact lenses and spectacles during the day. It is ideal for individuals involved in sports or for those who work in dry or dusty environments where other types of vision correction may not work well. Ortho-K is especially useful in young people who are becoming more myopic during adolescence, as it will tend to stabilize the refractive error, as long as the patient continues to use the lenses.\nSome long-term contact lens patients develop sensitivity to their traditional lenses, even though newer lenses are made with better materials and better designs than in the past. Sometimes known as corneal exhaustion syndrome (CLE), patients who have worn contacts for several years, and notice that their wearing time or lens awareness has increased may have developed CLE. Happily, CLE is not seen as often in recent years, because of better designs and materials. Normal, healthy corneas are steeper in the center and gradually flatten out as they near the sclera; reverse-geometry lenses are made in such a way that they are flatter in the center, and become steeper towards the lens periphery, which causes the cornea to change its shape from the edges instead of in the center. This new fitting philosophy and lens design leaves the central cornea for the most part “as is.”\nWhile most of the vision changes will happen within the first few days, it may take a few months for maximal results and stability. At that time, the eyecare practitioner will determine the amount of retainer-lens wear will be needed to maintain the new corneal shape.\nThe entire process of Ortho-K is reversible, non-invasive and can be modified easily. It is especially effective for young patients, or for those who are just not comfortable with the risks associated with refractive surgery.\nIt is important to understand that Ortho-K is helpful for mild to moderate myopia and astigmatism, but not meant for those with large vision corrections for either myopia or astigmatism, or for those who are hyperopic (farsighted).\nPeople who are not good candidates for Ortho-K include those with:\n- Eye disease or abnormality that affects the cornea, conjunctiva or eyelids\n- Suffer from dry eye*\n- Have allergic reactions that may be worsened by contact lenses\n- Have high amounts of myopia or astigmatism, or who are hyperopic (farsighted)\n- Have a cornea that is abnormally shaped*\n*Patients with these particular problems should ask their eyecare practitioners about the new scleral lenses. (see previous section)\nThe cost of Ortho-K is higher than the cost of standard contact lenses, both because of how the lenses are made and the duration of treatment; the number of lenses needed depends on the individual patient. In general, the overall cost of Ortho-K is usually about half that of laser refractive surgery.\nSoft torics, ortho-K lenses, and all the rest of these specialty lenses provide the eyecare practitioner and patient with more choices and will make it possible for some people to wear contact lenses that formerly could not. Others will allow patients who could not previously wear contacts to use them now, with better optics and lens design characteristics. The reality is that we are all different people and we all desire different things from our vision correction modalities; now, with new lens designs and materials, contact lenses may be possible for some people who had very little luck with them earlier.\nIf you have been told at any time in the past that you could not wear contact lenses, please, ask us about lens options that may allow you to use and enjoy the freedom that contacts provide.","domain":"optical_engineering"}
{"url":"https://www.solderconnection.com/p2333/SX45-Elite-Industrial-Stereo-Zoom-Microscope.html","date":"2022-10-05T02:15:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337531.3/warc/CC-MAIN-20221005011205-20221005041205-00573.warc.gz","language_score":0.8545012474060059,"token_count":163,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__256064825","lang":"en","text":"Vision Engineering SX45 Elite industrial inspection stereo microscope with its extra-long working distance, precision optics and compact design is the perfect solution to many industrial, manufacturing and biological applications. With more than 60 years experience in design and manufacture of high performance optical systems, Vision Engineering’s SX45 Elite delivers value, performance and flexibility.\nThe SX45 Elite provides high quality stereo viewing, ideal for both industry and life science applications. Perfect for manufacturing assembly, inspection, quality control, and on the shop- floor, the SX45 Elite’s extra-long working distance is great for manipulation, re-work, dissection, or simple inspection tasks.\nAdditionally, a wide range of stand options and accessories allow tailoring to suit individual requirements.\nKey Product Features and Benefits:\nStandard Model Includes:","domain":"optical_engineering"}
{"url":"http://radio-weblogs.com/0105910/2004/07/18.html","date":"2021-11-28T23:36:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358673.74/warc/CC-MAIN-20211128224316-20211129014316-00478.warc.gz","language_score":0.8825089931488037,"token_count":694,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__93672998","lang":"en","text":"Silicon photonics can be defined as the use of silicon-based materials for the generation, guidance, control, and detection of light to communicate information over distance. When you use a laser to produce light, the output is a continuous wave. So you need an optical modulator to encode data for use in an optical communications link. Current optical modulators run at around 20 MHz, but PhysOrg.com says that in a technological breakthrough in silicon photonics, \"Intel Silicon-based Optical Modulator Could Run Faster Than 1GHz.\" As these modulators can be made out of silicon by using current manufacturing processes, this advance paves the way to a future production of photonics products based on silicon.\nHere is the introduction of this article.\nIntel researchers have developed a silicon-based optical modulator operating at 1GHz -- an increase of over 50 times the previous research record of about 20MHz. Fabricated in an Intel Fab using Intel's existing high-volume manufacturing processes, the device incorporates a transistor-like structure to encode data onto a wavelength of light.\nIntel's breakthrough modulator takes an incoming light beam and splits it into two beams. The beams are then \"phase shifted\" relative to each other to change the amplitude of the resulting, recombined beam. The result is the ability to change light from bright to dark and thus encode data.\n||Here is a diagram showing a Mach-Zehnder interferometer (MZI) modulator with two phase shifter sections (Credit: Intel Corporation).|\nWhat can we expect from these new optical modulators?\nBy demonstrating how optical modulators can be made out of silicon using Intel's standard manufacturing processes in an existing fab, Intel researchers have removed a significant cost barrier in photonics. The next step is integrating entire photonic devices on a chip with digital intelligence. This should pave the way to produce photonics products based on silicon.\nIntel expects to achieve even greater bandwidth in silicon photonic devices by multiplexing many data streams onto multiple wavelengths of light onto one optical fiber. This approach could bring silicon photonics into an age where enormous amounts of data can be exchanged at high speeds on a single fiber.\nFor far more technical information about this discovery, let's turn to Intel Technology Journal who published a special series of articles about silicon photonics in May 2004. Here is a link to the abstract about Silicon Photonics.\nWe introduce our approach to opto-electronic integration, silicon photonics, and outline the key functions required for an opto-electronic integration platform: generation, control, and detection of light. Recent research results for silicon-based optical components are discussed including a tunable external cavity laser, a 2.5 GHz optical modulator and a silicon-germanium waveguide-based photodetector. Lastly, optical packaging challenges and potential next-generation designs are presented.\nAnd here is a link to the optical modulator. Here is a short excerpt of the conclusion.\nOur modulator with MOS capacitor phase shifters has demonstrated bandwidth performance previously unseen in silicon modulators, and modeling suggests that high-speed modulation at 10 GHz is achievable with design optimization.\nSources: PhysOrg.com, July 14, 2004; Intel Technology Journal, Volume 8, Issue 2, May 10, 2004","domain":"optical_engineering"}
{"url":"https://owsusefulidiots.blogspot.com/2016/10/experimental-stretchy-optical-fibers.html","date":"2017-11-22T03:48:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806455.2/warc/CC-MAIN-20171122031440-20171122051440-00746.warc.gz","language_score":0.9413992166519165,"token_count":124,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__83297835","lang":"en","text":"Educate yourself and stop being a Useful Idiot.\nI am skeptical of all information and people until I research it myself.\nOctober 17, 2016\nExperimental \"stretchy\" optical fibers could warn about disease early\nA new type of optical fiber – a channel capable of transporting light – developed by MIT and Harvard Medical School researchers could make it far easier to detect the onset of disease early, or track the progress of healing and treatment. The new \"stretchy,\" rubber-like optical fiber created by the team can be stretched and bent, and is made almost entirely of water in… Read More","domain":"optical_engineering"}
{"url":"https://cttech66.wordpress.com/2016/11/18/ahd-vs-hd-cvi-whats-difference-between-them-and-see-introduction-to-ahd-cameras-and-dvrs/","date":"2018-06-22T05:26:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864354.27/warc/CC-MAIN-20180622045658-20180622065658-00027.warc.gz","language_score":0.8907895684242249,"token_count":1586,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__7828382","lang":"en","text":"Since the popularity of CMOS image sensor, the traditional analog video surveillance is undergoing tremendous transformation. More and more security camera manufacturers launch new high definition analog solutions, which are, HD-SDI, HD-CVI, HD-TVI, and now HD-AHD. All of them can deliver 720P/1080P high definition images, and transmitting the video over traditional coaxial cable. HD-SDI cameras and HD-SDI DVR are the most expensive HD analog equipment among them, which is the main reason HD-SDI technology doesn’t widely used in HD analog surveillance system. Compared with HD-SDI, the cameras based on other three technologies are very competitive.\nWe have already written some articles to introduce each of these technologies, and the difference between them. Today, we are going to discuss the difference between HD-CVI cameras and HD-AHD cameras.\nThe main difference: 1.0 megapixel AHD camera adopts OV9712 + NVP2431H solution, while HD-CVI camera adopts the PO3100K + DH9801 solution. In addition to the difference of solution, the price vary greatly, OV9712 + NVP2431 of AHD camera module only costs US$6.5, and PO3100K + DH9801 camera module costs approximate US$10.\nAdditionally, AHD camera can connect to CRT display directly, the image can display properly. HD-CVI camera connects to traditional CRT, it doesn’t show images. For video live view/recording/playback, HD-CVI cameras need to work with HD-CVI DVR. It seems, the HD-AHD cameras support 960H output mode, which is very convenient for test and installation. Since the AHD cameras can be backward compatible with all traditional analog equipment. Compared with HD-CVI, it has advantages of great compatibility.\nHit a nutshell, AHD and HD-CVI are very similar. Please note that in order to achieve megapixel definition monitoring (720P), the AHD cameras also need to work with AHD DVR.\nIntroduction to AHD\nDuring old traditional surveillance system’s upgrading and replacing, can’t balance between achieving high definition surveillance and combining old traditional analog system become headache for users. In standard analog surveillance system, 960H is the highest resolution, to achieve much higher resolution becomes impossible mission for traditional surveillance system since its limitation from its technology.\nIf adopts all high definition (HD) IP camera, the entire system need to replace, this will not only generate high labor cost, but also significantly increased the project budget.\nAHD stands for analog high definition, AHD’s birth, is to solve the transmission distance limitations of existing HD-SDI solution. As one of new HD analog solution, AHD supports video transmission over traditional 75-3 coaxial cable up to 500 meters, and it becomes another alternative for HD analog solution. By the way, it inherits and carries forward advantages of traditional analog solution, video signal are uncompressed, keep all the original video details, to truly achieve high definition uncompressed lossless, no video latency effect.\nSimilar to other HD analog solutions, through using the progressive scan CMOS image sensor, the AHD camera can deliver 1.0 megapixel, 1.3 megapixel, 2 megapixel resolution, added with ICR filter, the camera achieve true day/night video surveillance; and same like the traditional analog system, AHD products support plug-and-play installation, easy to use.\nIntroduction to AHD Cameras\nRecently, some companies offer AHD analog cameras which deliver 1.0 megapixel and 1.3 megapixel resolution. 1.0 megapixel AHD camera adopts OV9712 + NVP2431H, and 1.3 megapixel adopts SONY IMX238 + NVP2430H chipsets.\nAHD chipsets are from Korean company – Nextchip, the company launches AHD chipsets (NVP2430H/NVP2431H) which can work with 1.3 megapixel progressive scan CMOS image sensor. The new HD-AHD chipsets are designed to meet the demands of new trend in CCTV market, it is suitable for both analog HD camera and cost-effective HD-SDI applications. The main concept of NVP2430H is supporting 1.3M CMOS sensor and output I/F as analog 1280H(CVBS/COMET), AHD 1.0(720p) and HD-SDI 720p. NVP2431H is supporting 1.3M CMOS sensor and output I/F as analog 1280H(CVBS/COMET) and AHD 1.0 (720p).\nIntroduction to AHD DVR\nCurrently, we still haven’t seen the real products of AHD DVR. Since Nextchip is the AHD solution provider, it also offers AHD codec chipset – NVP6114. NVP6114 is designed to encode and record the video footage from AHD cameras. AHD DVR based on NVP6114 can support 4 channel AHD and 9 channel audio codec. It can work with 1.0 megapixel and 1.3 megapixel AHD cameras, deliver high quality images.\nNVP6114 includes 4-Channel AHD1.0 RX and 9-Channel Audio Codec. 4-Channel AHD1.0 RX delivers high quality images. It accepts separate 4 CVBS/COMET/AHD1.0 inputs from Camera and the other video signal sources. It digitizes and decodes NTSC/PAL/COMET/AHD1.0 video signal into digital video signal which represents 8-bit BT.656/BT.656like 4:2:2 byte interleave format with 27/36/54/72/108/144MHz multiplexed. Especially, It is able to use same transmission cable with conventional one for COMET(SD level) and AHD 1.0 (HD level), and they provide the superior image quality by minimizing the interference when separating Y and C. 9-Channel Audio Codec is 8-Channel Voice/1-Channel Mic PCM Codec which handles voice band signals(300Hz~3400Hz) with 8bit/16bit linear PCM, 8bit G.711(u-law, a-law) PCM. Built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback. 4-Channel Coaxial Communication Protocol communicates between controller(DVR) and camera on the video signal through coaxial cable. COMET is Composite Video of Enhanced Technology in SD video by NEXTCHIP. AHD is a video transmission technology in HD video by NEXTCHIP.\nWe are one of the leading CCTV supplier and installer in Penang Malaysia, and we do covering areas in Kedah, Kelantan, IPOH, JOHOR , MELAKA , KUALA LUMPUR, KUANTAN, TERENGGANU ,KELANTAN as well as Pahang.\non the other hand,\nCT is one of the longest standing digital signage companies in Malaysia. We provide enterprise and entry-level digital signage software solutions to organisations small and large, from large media owners to colleges and charities.\nwe covering customer from Penang to Kedah, digital Signage Solution provider for digital Signage advertisement, customers in Terengganu, IPOH, Kuala Lumpur, Melaka,as well as Johor","domain":"optical_engineering"}
{"url":"http://glodoksafety.com/3m-bx-protective-eyewear-11381-grey-anti-fog-lens/","date":"2019-04-23T16:30:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578605555.73/warc/CC-MAIN-20190423154842-20190423180842-00346.warc.gz","language_score":0.8618080019950867,"token_count":305,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__199430323","lang":"en","text":"Deskripsi Produk 3M BX protective eyewear 11381\n3M BX protective eyewear 11381 comes with an adjustable temple length, lens angle, and nosebridge to allow a more comfortable fit. The ability to customize the safety glasses to the wearer makes them more pleasant to use over extended time periods. The nose bridge is cushioned for softness and comfort. The sleek, contoured design offers an attractive appearance along with functional eye protection. The impact-resistant polycarbonate lenses absorb 99.9% UV rays. These safety glasses are recommended for following tasks: assembly and mechanical, chipping, chiseling, cleaning, drilling, grinding, machining, masonry, metal repair, painting, pouring/casting, power fastening, riveting, sanding and sawing. Industries in which these safety glasses are commonly used include aviation, construction, food and beverage, general manufacturing, mining, oil and gas, primary metals and transportation.\nBX™ safety glasses meet the requirements of CSA Z94.3-2007 and ANSI Z87.1-2010.\n– Sleek, contoured design combines style and function\n– Soft nose bridge offers pleasant extended wear\n– Adjustable length temples and lens angle allow for customized fit\n– Polycarbonate lenses absorb 99.9% UVA and UVB up to 3\nUntuk pemesanan silahkan hubungi toko alat safety kami di 02162308366","domain":"optical_engineering"}
{"url":"https://www.schwanog.com/en-us/news-1/news/detail/new-automated-laser-marking-cell","date":"2024-04-13T03:27:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816535.76/warc/CC-MAIN-20240413021024-20240413051024-00098.warc.gz","language_score":0.9351584315299988,"token_count":164,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__31655054","lang":"en","text":"New automated laser marking cell!\nAs part of our strategy 4.0 to optimize all processes, we have invested in an automated cell for laser marking our insertable tools.\nWith the new automated cell, we can carry out your specific marking requests of the insertable tools even faster and more precisely. Another advantage for our customers is that the desired marking is already visible on the tool as part of the customer-specific approval drawing. The character length and text size may have to be adapted to the tool format.\n- Faster throughput times\n- More security due to visible marking as part of the approval drawing\n- Greater process reliability\nThe new automated laser marking cell has already been put into operation.\nWe look forward to laser marking the insertable tools for your projects with this new technology.","domain":"optical_engineering"}
{"url":"https://www.coatswortheyeclinic.co.uk/specialists-lenses/","date":"2022-01-25T08:16:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304798.1/warc/CC-MAIN-20220125070039-20220125100039-00059.warc.gz","language_score":0.9430710077285767,"token_count":308,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__42051590","lang":"en","text":"Coatswroth Eye Clinic offers following specialists lenses:\nA varifocal lens designed for people who regularly require a progressive lens in an active and dynamic environment. The varifocal is applied to the lens in such a way that it gives the wearer a much wider field for distance and intermediate, moving the reading area a little further down the lens. This means when playing golf, for example, when bending over to take a swing your reading area will not interfere but is still substantial enough to record your all-important scores!\niOffice and iDesk\nThese are both progressive lenses designed for office type environments. Where a traditional varifocal has distance, intermediate and reading, these lenses concentrate on giving the wearer the best possible vision for intermediate and near work. They have also been developed to allow the wearer the most natural head position therefore reducing neck strain associated with long term computer use.\nThe iOffice allows the wearer to see a little further into the distance, so great for those who work in a general office or a shop, for example.\nThe iDesk has the widest area for computer and close work, so great for those who spend long periods of time at a VDU screen.\nA varifocal lens designed with the specific vision requirements of driving in mind. Clear distance vision is the absolute priority, giving the wearer the widest field of view in the distance possible. It also gives improved middle distance vision compared to other progressive designs for reading the dashboard and seeing in mirrors.","domain":"optical_engineering"}
{"url":"https://merrettsurvey.com/blog/the-latest-developments-in-laser-scanning/","date":"2019-10-23T10:53:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570987833089.90/warc/CC-MAIN-20191023094558-20191023122058-00295.warc.gz","language_score":0.9469376802444458,"token_count":675,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__105061456","lang":"en","text":"Choosing the right technologies, with the best and most appropriate set of functions, is pivotal in Geomatics. Here at Merrett Survey Limited, we are constantly looking for ways to enhance the efficiency of our laser scanning methods with the view of producing the most efficient and accurate results as possible. Due to their capability to take 3D measurements, laser scanning systems are utilised to survey all types of environments, whether it’s buildings, road networks or railways for example.\nLaser scanning can be summarised in a few simple sentences. It is a technology that allows us to capture environments in 3D with speed and accuracy. Each surface that the laser comes into contact with is reflected back and recorded as a surface point, before being assigned a colour and surface reflectivity. Hundreds of millions of data points can be captured in a single session which, when combined, are called a point cloud.\nBenefits of laser scanning:\nIn it simplest form, LiDAR stands for light detection and ranging, just as radar stands for radio detection and ranging. Initially, LiDAR scanners were attached to aeroplanes in the 1960s and t wasn’t until the 1980s that the technology became appropriate to use in the geospatial industry. These were utilised as commercially viable GPS systems, which provided industry professionals with the ability to create concise, geospatial measurements.\nIn the surveying industry, we often use the phrase LiDAR for aerial surveys and laser scanning for ground based work, but the principle is the same – using a laser beam to measure the distance to an object.\nWith many different technologies on the market, there are a vast range to choose from when thinking about your client needs and specifications. However, the Leica RTC360 is an advanced and highly sophisticated product which ticks all of our boxes.\nThe 3D laser scanner, complete with HDR spherical imaging system and Visual Inertial System (VIS) allows for real time registration. With its ability to scan large scale areas with immense speed, precision and agility, the RTC360 is the ideal tool to further our laser scanning and LiDAR expertise.\nSome key benefits of the Leica RTC360 include:\nSpeaking of the benefits of the RTC360, owner of Merrett Survey Limited, Peter Merrett said: “We have a reputation for applying the latest technology, yet we only apply it when it has been proven to bring genuine benefits – either in terms of speed or accuracy and quality of the end product. This instrument certainly speeds up our fieldwork. Plus, on the quality front, the built in HDR camera is of very high quality.\n“The photographic part of the scan process tends to slow down the scanning work considerably, although, with this laser scanner, the imaging time is only 2 minutes per set-up. This enables us to colourise the point clouds we produce to a very high standard and also gives the client a greater insight into the structure or asset we are surveying”.\nWhether its laser scanning large storage tanks or vast areas of land, laser scanning technology such as the RTC360 allows us to deliver fast, pinpoint results. Contact us to find out more about our laser scanning and LiDAR services in greater detail and to discuss the full uses of the Leica RTC360.","domain":"optical_engineering"}
{"url":"https://www.ulbrich.hu/hireink/black-light-black-epoxies-cure-under-uv-irradiation","date":"2023-12-02T16:14:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100427.59/warc/CC-MAIN-20231202140407-20231202170407-00803.warc.gz","language_score":0.8885606527328491,"token_count":482,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__252426731","lang":"en","text":"With the new \"Black & Light\" adhesives, Panacol has developed a new adhesive technology: deep curing black epoxies. Black epoxy adhesives from Panacol's Vitralit product range can now be cured with UV light sources in thicker layers, without resorting to secondary curing mechanisms.\nConventional black UV adhesives have a major disadvantage: the black color absorbs a high proportion of the UV intensity, which means that the energy needed to fully polymerize an adhesive can only penetrate a few micrometers. This results in surface “skin” formation on black adhesives, but not a complete cure. They must then be cured in a secondary thermal curing process at temperatures above 100°C.\nPanacol's new \"Black&Light\" technology enables the complete curing of black epoxy adhesives with LED UV energy. Depth of cure can range from a few hundred micrometers to several millimeters. The adhesives are suitable for encapsulation, glob top, or edge bonding in electronics manufacturing, as well as for optical adhesive systems where high OD values (optical density) are required. They are suitable for optoelectronic applications to help minimize reflections and enhance sensor transmission values.\nA typical manufacturing process using \"Black&Light\" technology can be as follows: The black adhesive is dispensed and cured with the appropriate wavelength and intensity. During the curing process, the “Black&Light” technology within the adhesive enables the UV rays to penetrate and complete a full cure. Once the adhesive polymerization is complete, the structure of the \"Black&Light\" technology prohibits light transmission, resulting in a fully cured adhesive system that remains irreversibly black.\nThe \"Black&Light\" technology is compatible with many Vitralit® epoxy adhesives from Panacol. Custom adhesive solutions can be created to accommodate unique requirements for amount of light blocking and depth of cure. The \"Black&Light\" adhesive systems can be very specifically adapted to specifications of the respective application.\nAnother major advantage of the \"Black&Light\" adhesives is storage. Many single-component, black epoxies require deep frozen transportation and storage. The \"Black&Light\" epoxy adhesives can be stored and shipped at room temperature or under normal refrigeration.For further information please contact us.","domain":"optical_engineering"}
{"url":"https://fablab.arts.ufl.edu/send-us-your-file/","date":"2018-05-26T03:57:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867309.73/warc/CC-MAIN-20180526033945-20180526053945-00053.warc.gz","language_score":0.8448542356491089,"token_count":152,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__111466449","lang":"en","text":"Files submitted to the Fab Lab must adhere to our file standards. We do not accept file submissions via our email.\nClick on the links to the right to view file standards for 3D Printing, CNC Milling, Waterjet and Laser Cutting.\n- Information on Fab Lab's laser cutters\n- A guide on modeling for 3D Printing\n- Specs for our 3D Printers\n- Specs for our CNC Mill and Waterjet\nThis video will show you how to properly clean the lens before starting your lasercut.\nThis video will show you how to raise and lower the laser bed in prepartion for focusing the laser.\nThis video will show you how to focus the laser according to your material thickness.","domain":"optical_engineering"}
{"url":"https://publishing.aip.org/publications/journals/special-topics/app/state-of-the-art-and-future-directions-in-optical-frequency-comb-sources-enabling-technologies-and-applications/","date":"2023-12-06T13:45:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100599.20/warc/CC-MAIN-20231206130723-20231206160723-00130.warc.gz","language_score":0.8075488805770874,"token_count":400,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__99860666","lang":"en","text":"Optical frequency combs are powerful devices for realizing applications that rely on precision frequency synthesis, timing and metrology. This special topic covers developments in laser frequency comb sources, targeting wavelength regions beyond the standard telecommunication windows, compactness for large-scale deployment, and advances in subsystems and modules enabling enhanced performance or compatibility with system-level integration. Applications will be covered in atomic clock characterization, coherent communications, microwave synthesis, calibration of optical instrumentation, spectroscopy, as well as new emerging directions such as quantum information processing and biophotonics.\nTopics covered include, but are not limited to:\n- Sources: microcombs, semiconductor modelocked lasers, quantum cascade lasers), eo-combs, mode locked lasers\n- Enabling Technologies: continuum generation, wavelength conversion, high-harmonic generation, photonic integration, optical reference cavities, photomixers, ultra-narrow-linewidth lasers\n- Applications: biophotonics; quantum information processing, characterization and time/frequency dissemination of optical clocks, microwave photonics, optical frequency division, wavelength division multiplexing, quantum control, optical communications, direct molecular spectroscopy and trace gas detection, combs for astronomy, tests of fundamental physics\nTara Fortier, National Institute of Standards and Technology\nVictor Torres Company, Chalmers University of Technology\nAPL Photonics Editors\nChristelle Monat, École Centrale Lyon\nClara Saraceno, Ruhr University of Bochum\nHow to Submit:\n- Please submit through the online submission system.\n- Under manuscript type → select Article or Letter, as appropriate.\n- Under manuscript information → Title/Abstract → select “Invited Submission: No”.\n- Under manuscript information → Manuscript classification → select Special Topic: “State-of-the-Art and Future Directions in Optical Frequency Comb Sources, Enabling Technologies, and Applications”","domain":"optical_engineering"}
{"url":"https://ray-banssunglasses.org/understanding-anatomy-of-the-eye-the-function-of-crystalline-lens-and-vision/","date":"2021-08-05T22:24:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046157039.99/warc/CC-MAIN-20210805193327-20210805223327-00321.warc.gz","language_score":0.9407956004142761,"token_count":649,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__235892342","lang":"en","text":"Understanding anatomy of the eye – the function of crystalline lens and vision\nThe eyes are not only the windows of the soul, but our eyes are the windows of the world in the way that we allow us to observe our environment and to perceive the beauty of the landscape around us. If we are to the point where we can better understand the functioning of the various parts of our visual system, it is worth exploring while we understand that our eyes allow us to get a clear and crystal clear picture. One important part of our eye is called a crystalline lens. The crystalline lens of the eye is located behind the eye of the eye and is part of the visual system that is in the corrosion that is called the middle layer of the eye. Therefore, some information about how the crystalline lens helps to improve the visual system's performance:\nThe eye's crystalline lens plays an integral role in helping the visual system work more effectively due to the fact that the granular muscles of the eye work together to remote and close objects can be brought to a pure focus. It is therefore important that the rest of the eye work effectively together. For example, the effect of eyepiece muscles will change the shape of the lens to ease our eyes. can focus on different objects at different distances.\nFor example, when looking at a distant object, the effect of ciliary muscles on the spectacles creates its shape from the perspective of a thicker circular shape. This special shape is ideal for clear vision because it allows for easy bending at the exact angle so that the bright images go directly to the retina to give you a clear view of the distance. Likewise, when looking at a nearby object, granular muscles work in conjunction with the eyepiece, which creates a shape for a lens lens, as it helps close-ups as in reading, studying digital devices and computers.\nThe eyes are the most interesting organs in the human body. Various parts work together to allow us to see clearly and clearly visible objects near and far. A crystalline lens is a strange part of the eye, which is especially important as the eyepiece shape changes the eyepiece's muscle so it fits better with nearby objects and makes it look more flexible to help us see distant objects.\nA crystalline lens is an important part of the eye that helps to show both distant and near objects. This part of the eye is essential because it helps in the various parts of the eye to work effectively with the action taken with the granular muscles of the eyes to bring close and close objects to a pure focus. The crystalline lens is an important part of the eye, as without this part of the eye, the eye contours, such as shortness of vision and vision, will become more common. It's just one of the interesting things about the eyes that it is worth exploring to bring us to do things that we need to do to take care of our precious vision that it serves us for a lifetime.\n- Published On : 3 years ago on March 27, 2018\n- Author By : 346@dmin\n- Last Updated : March 27, 2018 @ 2:25 pm\n- In The Categories Of : Uncategorized","domain":"optical_engineering"}
{"url":"http://www.carledheadlight.com/new/LED-lighting.html","date":"2021-12-02T22:22:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362297.22/warc/CC-MAIN-20211202205828-20211202235828-00503.warc.gz","language_score":0.885688841342926,"token_count":614,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__205011244","lang":"en","text":"Home > News > Company news > Global automotive LED lighting was three…\nGlobal automotive LED lighting was three major trands.\nGlobal automotive LED lighting market will reach 70 dollor million in 2020.Compound annual growth rate of more than 18%.Manufacturer of lamps and lanterns is committed to producing hign-performance,reliable and affordable automotive LED lighting.\n1、LED lighting technology innovation continues to develop\nSuppliers are using semiconductor technology to develop LED of new generation to improve cost-effectiveness.\nHigh-quantity car LED headlight can enhance the safety of the road to provide better visibility.In addition,LED light can reduce energy consumption and carbon dioxide emissions,and improve the car’s appearance.The lifespan of car led headlight more than 25 thousand hours.\nTechnological innovation aslo promote the development of LED light.The latter provides a new lighting design.Beside,LED light uniform lighting and not flash or produce shadows.It is suitable for use as lights,taillights and interior lighting.\n2、Inner ring lighting become more and more popular\nInner ring lighting can be decorated in interior and add beauty to the car. The concept was introduced to high-end cars in 2007 and has expanded to low-end cars now.Car interior lighting mainly in the lamp,LED light beam spotlight and diffuse mirror-based.These lighting fixtures are installed in the console,door panels,dashboards and seats.More and more people customize the interior lighting system3、The development of laser and organic LED lights\nLaser and organic LED lights are among the most advanced technologies in the automotive lighting.Because of their high cost,generally only luxury cars will use.These technologies are still in development. With the introduction of low cost organic LED lamps and lasers, these technologies are expected to be used for all types of cars\n- Mini6 LED headlight\n- Mini7 LED headlight\n- Mini8 LED headlight\n- T8 LED headlight\n- T9 LED headlight\n- R7 LED headlight\n- R8 LED headlight\n- S2 LED headlight\n- F7 LED headlight\n- S1 LED headlight\n- N7 LED headlight\n- X7 LED headlight\n- S7 LED headlight\n- P7 LED headlight\n- C6 LED headlight\n- C8 LED headlight\n- C9 LED headlight\n- K6 LED headlight\n- K7 LED headlight\n- K8 LED headlight\nName: Guangzhou Rlight technology limited\nAdd：5Floor,Building A,No.18 datian industrial park,Yuancun,Baiyun district Guangzhou China 510440","domain":"optical_engineering"}
{"url":"https://www.aerodefevent.com/sessions/automated-non-contact-thickness-inspection-and-projection-system/","date":"2021-08-03T16:59:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154466.61/warc/CC-MAIN-20210803155731-20210803185731-00427.warc.gz","language_score":0.9573928117752075,"token_count":251,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__231562806","lang":"en","text":"There are multiple coatings applied to the F-35, and achieving the correct thickness is not always possible with the robotic spray process simply due to the complex contour, which can be rather severe in places, and the paint plume being sprayed. To achieve a target thickness, an operator must measure the thickness at several discreet points, then sand or add material as needed. The manual measurement process requires a stencil to be placed on the aircraft to identify the measurement points, and can be prone to spot sanding, leading to an out-of-tolerance coating. A robotic inspection system was developed to address this problem by robotically scanning the surface of the aircraft with a metrology device, then projecting a visual aid which guides the operator to where sanding or adding material is needed. The system is comprised of a sensor and projector which are attached to a collaborative robotic arm, all of which is mounted on an Autonomous Mobile Robot (AMR). The AMR drives the system into place in front of the desired inspection area. From there, the system scans the surface of the aircraft to measure thicknesses. The results of the inspection are then optically projected onto the surface so the operator can work the coating and rescan zones as needed.","domain":"optical_engineering"}
{"url":"https://www.shoppersbase.com/the-smartphone-technology-that-will-turn-you-into-a-better-photographer/","date":"2019-12-08T11:29:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540508599.52/warc/CC-MAIN-20191208095535-20191208123535-00054.warc.gz","language_score":0.9520036578178406,"token_count":616,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__27468403","lang":"en","text":"If you’ve always fancied yourself as a bit of a David Bailey or Phil Stern but your shots always end up looking out-of-focus and blurry, then new camera technology could hold the answer.\nWhile our smartphones are a convenient tool for taking quick snaps, as we always have them with us, the results aren’t always perfect.\nBut, 2013 could be the year when blurry smartphone photographs are consigned to history because of new technology which allows you to alter the focus – after you have taken the shot.\nJapanese electronics innovator Toshiba is busy working on a camera module for both smartphones and tablets. While auto focus usually does the trick, there are times it concentrates on the wrong subject. But Toshiba’s new gizmo will mean you can correct that.\nIt works through the use of half a million tiny lenses which each capture a slightly different image, with a different focal length.\nThe camera will be able to measure the distance between objects, in a similar way to the method used to capture 3D images, and the photographer will then be able to move the focus between details in the foreground and background, to create the “perfect” image.\nCompared to the way an insect’s eye works, Toshiba is busy pitching its new invention to mobile manufacturers. The manufacturer says the camera sensor will also work with videos, which will certainly broaden its appeal.\nIt should certainly be feasible to include the new technology in smartphones as it currently measures just one cubic centimetre.\nThe new innovation comes after the Lytro Light Field Camera which caused a bit of a storm when it was released in 2012.\nThe Lytro camera also lets you create pictures that you can refocus after you’ve taken them. You can even share them online, letting your friends refocus them too if they spot a subject of interest in the frame.\nAs the developers behind the Lytro say: “The Lytro camera lets you capture and share what you see in a whole new way.\nIt’s the first consumer camera that records the entire light field – all the rays of light traveling in every direction through a scene – instead of a flat 2D image. And that changes everything.”\nOthers, including micro-optics firm Heptagon and Pelican Imaging have also announced similar smartphone sensors.\nBut while Lytro may have had a head start, it seems other technology firms are now hot on its heels. And, while Lytro was hoping it would, long-term, be able to take advantage of the smartphone market, it just may be that Toshiba wins the race.\nWhile, the Toshiba sensor is still very much a work in progress, the Japanese multinational, has plans to commercialise its new module before the end of the year. The innovation could change the way we think about taking photos on our smartphones and tablets. We’ll just have to wait and see which mobile manufacturers take on the new technology.","domain":"optical_engineering"}
{"url":"http://www.battery-exhibition.net/ciptadusa_directory/shenzhen-crep-optoelectronics-co-ltd","date":"2023-12-03T14:08:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.23/warc/CC-MAIN-20231203125921-20231203155921-00632.warc.gz","language_score":0.9215506911277771,"token_count":171,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__239083739","lang":"en","text":"Shenzhen Crep Optoelectronic Co., Ltd is a National high-tech enterprise focused on research, manufacturing and sales of LED lighting. And entered National Small and Medium-sized Enterprises Share Transfer System (New Third Board) in September of 2015(stock code: 832408). We are dedicated to providing ODM/OEM service for international and domestic high-end LED lighting brands. Now we have 3 manufacturing base in Shenzhen, DongGuan and NanChang respectively. We own independent property standardization plant, covering over 100,000 square meters area, among them over 50,000 square meters of factories are already put into production, including LED dissipation parts, LED driver, LED fixture metal surface processing, LED lighting fixture, LED lighting engineering mounting, etc, realize the whole industry chain layout of LED lighting products application.","domain":"optical_engineering"}
{"url":"https://www.pharmiweb.com/press-release/2022-07-01/ophthalmic-lasers-market-is-estimated-to-increase-from-a-valuation-of-us-8843-million-in-2022","date":"2023-12-07T03:43:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100632.0/warc/CC-MAIN-20231207022257-20231207052257-00329.warc.gz","language_score":0.8570218086242676,"token_count":1417,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__52483994","lang":"en","text":"Ophthalmic Lasers Market is estimated to increase from a valuation of US$ 884.3 Million in 2022\n[294 Pages Report] Technological advancements have deeply penetrated every facet of the healthcare industry, and the ophthalmic lasers market is no exception. Over the years, ophthalmic disorders such as diabetic retinopathy, refractive errors, glaucoma, cataract and age related macular degeneration (AMD) have surged exponentially. This has accelerated demand for advanced surgical procedures.\nThe introduction of ophthalmic laser surgery has revolutionized ophthalmic care in unprecedented ways. Majority of these technologies are being deployed in cataract surgeries, attributed to the disorder’s widespread prevalence across all continents. Advancements such femtosecond laser surgeries have proven highly instrumental in streamlining ophthalmic procedures, offering lightning speed detection of faulty tissues.\nSuch reduced detection and treatment timeframes act as major growth catalysts for the global ophthalmic lasers market, which is anticipated to reach a value of US$ 1.3 Bn by 2030.\nTo remain ahead of your competitors, request for a sample – https://www.futuremarketinsights.com/reports/sample/rep-gb-1529\n|Data Points||Market Insights|\n|market Value 2021||USD 838.4 Mn|\n|market Value 2022||USD 884.3 Mn|\n|market Value 2030||USD 1.3 Bn|\n|Share of Top 5 Countries||60.4%|\n|Key Players||The key players in ophthalmic lasers market are Abbott Medical Optics, Inc., Alcon Inc. (Novartis AG), Bausch & Lomb Incorporated, LENSAR, LLC, NIDEK CO., LTD, iVIS Technologies, ZEISS International, Ziemer Ophthalmic Systems AG, and SCHWIND eye-tech-solutions GmbH & Co. KG.|\nOphthalmic Lasers Market- Key Highlights\n- Ophthalmic lasers market shall expand steadily at a CAGR of 5.4% from 2022-2030\n- Cataract surgeries shall account for the majority share of the global ophthalmic lasers market\n- Femtosecond laser surgery to hold maximum sway throughout the forecast period\n- North America shall retain market hegemony, owing to increasing regulatory approvals for laser surgeries by authorities\n- Asia & Europe to contribute nearly identical revenue shares due to rise in surgeries amidst their geriatric population\nGet a Tailored Made Report to Match Your requirements, Ask from Market Research Expert – https://www.futuremarketinsights.com/ask-question/rep-gb-1529\nCOVID-19 Impact Analysis\nThe novel coronavirus pandemic will have a significantly high impact on the ophthalmic lasers market. As lockdowns and curbs continue to remain enforced, the number of footfalls across ophthalmology clinics and hospitals have declined considerably. Patient care has diminished by nearly 60%, with only emergency surgeries being permitted.\nWith in-patient visits becoming next to impossible, ophthalmologists are resorting to telemedicine with regards to consultation and advice to patients. A slump is anticipated in refractive and premium lens surgeries across developing economies in the long-run, attributed to cash crunches experienced by individual households due to the prolonged lockdowns.\nAt the same time, several countries are enforcing strict social distancing protocols and hygiene practices, keeping demand for ophthalmic laser surgeries sustained. For instance, ophthalmologists in Germany have made it a protocol to test patients requiring intravitreal injections and other procedures for COVID-19. If positive, they are redirected to emergency departments, reducing chances of infection.\n“Vendors in the ophthalmic lasers landscape are striving to introduce novel product lines, equipped with multi-frequency selection modes to reduce exposure to intense laser bursts, preventing healthy tissue damage,” infers the FMI analyst.\nProminent vendors in the ophthalmic lasers market include are ZEISS International, Nidek Inc., Bausch & Lomb Inc., Abbot Laboratories Inc., SCHWIND Eye-Tech Solutions, Ziemer Ophthalmic Systems AG, Novartis AG (Alcon), LENSAR LLC., iVIS Technologies and NKT Photonics A/S. New product launches and collaborations have helped these players acquire firm footing.\nIn 2018, ZEISS International rolled out its VISUFIT 1000 digital 3D centration data determination and consultation platform, offering a three-dimensional facial reconstruction which enables ophthalmologists perform precise centration processes on patients.\nIn July 2022, SCHWIND Eye-Tech acquired CE approval for its SCHWIND ATOS femtosecond laser, permitting eye surgeons to incorporate the technology in their SmartSight refractive surgery procedures.\nMore Insights on the Ophthalmic Lasers Market\nA recent market study published by FMI on the ophthalmic lasers market includes the global industry analysis of 2014-2021 & opportunity assessment for 2022-2030, and delivers a comprehensive assessment of the most important market dynamics. The report provides a balanced, unbiased analysis of the overall market scenario based on product type (excimer lasers and femtosecond lasers), application (refractive surgery, cataract surgery, capsulotomy, trabeculoplasty and diagnostics), end-user (hospitals, ophthalmology clinics and ambulatory surgical centers) and region (North America, Latin America, Europe, East Asia, South Asia, Oceania and Middle East & Africa).\nFor in-depth insights, Download a PDF Brochure – https://www.futuremarketinsights.com/reports/brochure/rep-gb-1529\nOphthalmic lasers market by Category\nBy Product :\n- Excimer Lasers\n- Femtosecond Laser\nBy Application :\n- Refractive Surgery\n- Cataract Surgery\n- Posterior Capsulotomy\nBy End user :\n- 500 Bedded+\n- 250-499 Bedded\n- Less than 250\n- Ambulatory Surgical Centers\n- Ophthalmology Clinics\nFuture Market Insights (ESOMAR certified market research organization and a member of Greater New York Chamber of Commerce) provides in-depth insights into governing factors elevating the demand in the market. It discloses opportunities that will favor the market growth in various segments on the basis of Source, Application, Sales Channel and End Use over the next 9-years.\nFuture Market Insights,\nUnit No: 1602-006,\nJumeirah Bay 2,\nPlot No: JLT-PH2-X2A,\nJumeirah Lakes Towers,\nUnited Arab Emirates\nFor Sales Enquiries: email@example.com\nLinkedIn| Twitter| Blogs","domain":"optical_engineering"}
{"url":"https://couponspicker.com/dv-camcorder-4k-with-12x-optical-zoom-connecting-with-smart-led-filling-light-microphone-wide-angle-lens-lens-hood-and-foldable-handheld-stabilizer32gb-sd-card-as-a-gift-by-emperor-of-gadgets/","date":"2021-07-28T04:42:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153521.1/warc/CC-MAIN-20210728025548-20210728055548-00651.warc.gz","language_score":0.8607066869735718,"token_count":1042,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__259539446","lang":"en","text":"(as of Jul 14,2021 20:34:45 UTC – Details)\n4K Ultra -HD Quality Camcorder\nWith 4K 3840*2160 24 fps video resolution, AC5 DV camcorder can shoot high quality images and clear videos with rich color which have good performance of contrast .You can upload your video files to the 4K TV or computer to view the 4K video effect.\nIPS Touch Panel 3.1”\nCamcorder 4K uses 3.1” IPS HD capacities touch panel, which provides 178º viewing angle and has 1,152,000 dots resolution, 300 ppi. It has better performance of displaying images and videos in rich, smooth color gradations than ordinary screen.\n12X Optical Zoom\n12X Optical Zoom :This AC5 DV camcorder equipped with the 12X optical and 100X digital zoom can perform brilliant high definition image quality when zoom in and zoom out. You can capture clearly from the long distance by 12 optical lens.\nSmart LED Filling Light\nLED Light : This Smart LED light can equipped to the smartphone ,DSLR camera and camcorder . You can use our APP ” Free Light” to control color temperature easily. It is widely used in shooting portraits everywhere.\nFoldable Handheld Stabilizer\nIt is designed for increase the stability when shooting images and videos. It adopts the ergonomic U-shaped and groove grip adds comfort for eases the long time shooting fatigue. Compatible to most camera and Smartphone.\n0.39X Wide Angle Lens\nWide Angle Lens: This 4K video camera is equipped with a professional 2-in-1 0.39x wide angle lens for a wider range of shooting and a macro lens for close up shots such as plants and animals, insect ,etc.\nThis AC5 HDR DV camcorder including a Microphone which provide better sound recognition during recording. The microphone very useful for business conference, wedding, interview, concert and teaching etc.\nLens Hood : There is great different between with Hood and without Hood. It can block the sun or other light sources to prevent glare and lens flare. In addition, it can protect the lens from scratches.\nTime-Lapse: The newest 4k camcorder AC5 is capable to shooting time-lapse videos which can taking a sequence of frames at set intervals 1s, 3s, 5s to record changes that take place slowly over time and compressing a long and big video onto a short video .\nWIFI Connection and APP Control\nDownload the APP “C-Video” on your phone and connect the 4K camcorder’s WIFI for preview and control shooting on the phone or tablet. You can edit and download the videos and pictures on the APP ,then share them to your social media at any time.\nCMOS sensor: With 5 MP high sensitivity CMOS sensor, it can sense the surrounding environment , delicately handle complex light can enhance image clarity to perform more naturally vivid and lifelike image quality.\n4K Ultra-HD Camcorder/5MP high-sensitivity CMOS sensor12X optical Zoom/100X digital Zoom3.1” IPS Touch PanelHot shoe design to equip accessoriesTime-Lapse Photography\nSmart LED Filling LightFoldable Handheld Stabilizer0.39X Wide Angle LensShotgun MicrophoneLens Hood\n32G SD Card for CamcorderClass 10 Speed – Perfect for UHD 4k video\nOne 1700mAh Li-ion Battery and one battery charger.When first use, charge the battery for 3 hours to make sure its fully charged,It can take videos up to 2 hours.\nOrdro AC5 4K Camcorder\nDV Camcorder accessories\n32GB Memory Card\nBattery & Charger\nThis camcorder 4K kit including a smart LED Filling Light which has 120pcs LED diodes. It is portable, the size just like a cellphone, very convenience to take to everywhere. You can adjust brightness and color temperatur between cold color 6500K to warm color 2700K by button on it or APP “free light”. It also can set up on DSLR camera, smartphone and tripods flexibly.\nWith ergonomic design, the foldable handheld stabilizer make DV camcorder stable and Anti-Shake when installed in DSLR camera, camcorder and smartphone. Especially for low angle shooting.\nThe newest Camcorder 4k AC5 adopts time-lapse photography, which can taking a sequence of frames at set intervals ( 1s, 3s, 5s ) to record changes that take place slowly over time.\nThis 4k UHD camcorder has a capacitive 3.1 inch IPS touch panel which has 178° viewing angle. By connecting WIFI, you can control recording, shooting and editing by “C-video” APP. Then sharing them easily to your Facebook, Instagram, YouTube and etc.","domain":"optical_engineering"}
{"url":"https://www.agricam.se/eu-stod?lang=en","date":"2019-12-13T08:54:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540551267.14/warc/CC-MAIN-20191213071155-20191213095155-00434.warc.gz","language_score":0.8850540518760681,"token_count":273,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__82182943","lang":"en","text":"Ongoing EU projects\nAdvanced Thermal Imaging System in Dairy Cows\nSMEs instrument, Horizon 2020\nReceived Seal of Excellence.\nOngoing EIP projects\nBacticam - optical bacterial classifier\nIn collaboration with Distriktsveterinärerna and the National Veterinary Institute we develop an optical bacterial classifier. The classifier scan Petri dishes and identify bacteria culture in real time with the same reliability as a laboratory.\nThe aim of the project is to reduce costs for cultivation and analysis of bacteria culture for dairy farmers and veterinarians, increase the accuracy of bacterial identification as well as reduce the response time for the analysis.\nFinished EIP projects\nNon-contact fever detection for safe and efficient animal care\nThe ambition of the project was to develop a non-contact fever detector for livestock, that measures the surface temperature of the cornea using thermal cameras. The purpose of the innovation is to facilitate animal care, minimize production losses and increase the efficiency of both dairy and pig producers' businesses. The aim was also a fixed system solution for continuous fever measurement where the animals pass the same camera station (eg dairy cows) and a handheld system solution for meat animals, pigs and horses where the heat camera communicates interactively and in real time with a server (eg cloud solution to store directly data on the animal).","domain":"optical_engineering"}
{"url":"http://wd38.cn/en/angle-measurement/kemes-product","date":"2020-10-24T05:52:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107882102.31/warc/CC-MAIN-20201024051926-20201024081926-00169.warc.gz","language_score":0.6984850764274597,"token_count":233,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__40985120","lang":"en","text":"When used directly on the press brake, the KeMes angle measurement device automatically determines any bent angle. Time no longer needs to be spent on manual spot checks.\nKeMes enables complete quality control directly in the running production process. It is possible to immediately respond to any angle deviations.\nThe patented angle measurement solution functions for different machine types and manufacturers and can be retrofitted to existing press brakes at any time without intervening in the machine control.\nWhether directly on the press brake, for manual spot checks or incoming goods inspection – the digital protractor KeMes is very versatile.\nKeMes supports the recording of the measurement values, which can then be used to analyze the production process.\nEquipped with a Bluetooth interface, the KeMes variants A200 and A205 allow the automatic transfer and processing of angle values. However, this requires an integration of the device by the machine manufacturer.\n|Manual measurement||Machine measurement||Bluetooth interface|\n*Only available from machine manufacturers\nPhone: +43 732 7090-0 Fax: +43 732 730910\nGoogle Map Location Directions(PDF)","domain":"optical_engineering"}
{"url":"http://onceuponaman.blogspot.com/2011/06/lumix-understanding-and-definition-of.html","date":"2018-07-18T07:06:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590069.15/warc/CC-MAIN-20180718060927-20180718080927-00360.warc.gz","language_score":0.9264343976974487,"token_count":2025,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__17923097","lang":"en","text":"Lumix is Panasonic's brand of digital cameras, ranging from pocket point-and-shoot models to digital SLRs. Many Lumix models are fitted with Leica lenses that have been designed by Leica's German optical engineers and are assembled in Japan, some are rebadged as Leica cameras with different cosmetic styling. Leica had a similar relationship with Minolta in the past, where late model Leica SLRs (and some 35mm point and shoot models) were strongly based on Minolta bodies.\nMost Lumix cameras use different releases of the Panasonic Venus Engine for digital image processing; the original version was followed by II, III, IV, HD (2008), V (2009), and VI, HD II, FHD (2010).\nPanasonic produces all of Leica's branded digital point and shoot cameras in Japan, but not film cameras, the Leica M8 or Leica M9 digital rangefinder cameras, or the Digital Modul R digital camera back for the Leica R9 film SLR.\nSome cameras come in several colours, indicated by a suffix letter: K is black, S silver, A blue, R red, W white. Most lower-price cameras have small sensors of about 10.2 mm / 1/2.5\". More expensive ones often have sensors of about twice the area, 14.1 mm to 15.4 mm / 1/1.65\" to 1/1.8\". dSLRs and Micro Four Thirds cameras have much larger sensors. Larger sensors produce a better signal-to-image-noise ratio and better dynamic range. The GH series of Micro Four Thirds cameras have a unique 'multi-aspect' sensor, that is larger than the lens image circle. This allows use of three different aspect ratios, 4:3, 3:2 and 16:9, to be used natively. As a result, the image diagonal remains the same in all three aspect ratios and provides full coverage of the sensor and a larger field of view with higher resolution than one would get by simply cropping the 4:3 aspect to the narrower ratios.\n- DMC-FS: Ultra-compact mid-range, relatively typical cameras. The FS range was launched in January 2008. This series includes the FS3, FS4, FS5, FS20, FS6, FS7, FS15, and, FS42.\n- DMC-FX: Ultra-compact high-end, relatively typical cameras. The FX01 was the first ever ultra-compact (considering Ricoh R series as compact) with a true wide-angle 28–102 mm lens, sharing now (20 Jan 2007) this feature with its siblings FX07 and FX50, as well as with the Canon SD800 IS (IXUS 850 IS in Europe). Unlike most of the other Lumix lines, the FX series tends to have a more stylish look (as opposed to the generic silver or black), targeted at social photography. Includes the FX1, FX5, FX2, FX3, FX7, FX8, FX9, FX01, FX10, FX12, FX30, FX37(38), FX50, FX07, FX100, FX33, FX55, FX35, FX150 (1/1.72\"), FX500, FX48 (FX40 in Europe), and FX580 (FX550 in Europe). The Panasonic Lumix DMC-FX30 was announced as the world's slimmest camera with a 28 mm equivalent wide-angle lens. The Panasonic Lumix FX35 equips with 25 mm Ultra-Wide-Angle Lens. The FX500 is the first Panasonic to feature a touch-screen interface.\n- DMC-FZx (excluding DMC-FZx0 models): Compact ultra-zoom higher-end cameras. These cameras are described as compact but are relatively large, have extensive controls (although models earlier than the FZ7 do not have manual focus), and long zoom ranges, typically 12× with extending zoom lens. Includes FZ1, FZ2, FZ3, FZ4, FZ5, FZ7, FZ8, FZ18 (18× zoom, 1/2.5\"), FZ28 (18x zoom, Venus IV) and FZ35/FZ38(Europe) (18x zoom, Venus HD).\n- DMC-FZx0: Bridge digital cameras, resemble digital SLRs in many ways, but have a non-interchangeable, non-extending zoom lens. The later models from the FZ30 are large and heavy, have a wide zoom range (12×) and extensive manual controls, including fully manual focus and zoom rings on the lens. The range comprises the FZ10, FZ20, FZ30, and FZ50 (14.1 mm / 1/1.8\").\n- DMC-G: Panasonic's Micro Four Thirds System line, advertised as a \"reinvented D-SLR\" without mirror. The first camera in the line is the G1, released in late 2008, which has an electronic viewfinder (EVF) and interchangeable lens (EVIL class). It does not use the mirror and pentaprism of a true SLR, so is smaller and lighter. It has many of the features of a DSLR and of a compact digital camera, but no movie mode. The GH2 was released in October 2010 as a successor to the GH1 and improves upon the video recording capabilities of its predecessor and incorporates many upgrades such as a higher resolution sensor and the fastest contrast detect autofocus system implemented to date. In September 2009, Panasonic released the GF1, a 12 megapixel compact Micro Four Thirds camera featuring 720p HD video. This model was followed by the GF2, a smaller version of the GF1, incorporating 1080p HD video.\n- DMC-L: Panasonic's DSLR line. It uses the Four Thirds System lens mount and along with the Olympus E-330 was one of the first DSLRs capable of displaying live image view on the LCD screen. Models include the L1 and L10.\n- DMC-LS: Panasonic's cheapest line, budget plastic compact cameras powered by two AA batteries. Includes the LS1, LS2, LS3, LS60, LS70, LS75, LS80, and LS85.\n- DMC-LX: A compact high-end camera line, with full manual exposure and focus controls (with joystick control rather than focus ring), and RAW recording, unusual in compact cameras. Includes the 8 megapixels LX1, the 10 megapixels (1/1.65\") LX2, and the 10 megapixels (1/1.63\") LX3 with a 2.5x f/2–2.8 24–60 mm (35 mm equivalent) lens. (Announced Jul 2008, shipping since late Aug 2008.) The successor to the LX3, the LX5 was announced in July 2010 and features an unchanged 10.1MP (1/1.63\") sensor, but with an improved telephoto 3.8x f/2–3.3 24–90 mm (35 mm equivalent) lens.\n- DMC-LZ: Budget, but more advanced and with more user control than many other digital compact cameras. The most notable feature is a 5× (37–222 mm) optical zoom range. Includes the LZ1, LZ2, LZ3, LZ5, LZ6, LZ7, LZ8, LZ10 (Jul 2008).\n- DMC-TS: waterproof, shockproof, and dustproof point and shoot camera. Includes TS1 (FT1), which also has limited high definition video capability.\n- DMC-TZ: Compact, point and shoot 10× zoom cameras with image stabilization. Includes the TZ1, TZ2, TZ3, TZ4, TZ5 (Known as the TZ15 in Asia), and TZ50 (TZ5 with Wi-Fi). The TZ1 uses folded optics, with a prism. TZ1's successors use a traditional design without folded optics, hence the barrel extends further out during operation. The TZ series stands out against other compact digital cameras by achieving a 10x optical zoom with a 28 mm* wide angle lens in a small compact body. *equivalent to 35 mm camera. In 2010 Panasonic released the latest model, the TZ10 (ZS7 in the United States), which has a 12x (25 - 300 mm) optical zoom and incorporates GPS. It also features 720p HD video capability. On January 25th 2011, Lumix DMC-TZ20 (ZS10 in the United States) was announced. Features includes 16x zoom (24-384mm), 14.1 Megapixel MOS, 1080/60i AVCHD video, high speed shooting at 10 fps at full resolution, 60 fps at 3.5 Mpix resolution and high speed video at 220 fps at QVGA resolution.\n- DMC-ZS: Compact ultra-zoom high-end (offering HD video) cameras. Announced in January 2009 as a successor to the successful TZ series. It is distinguished by having high-grade still shooting and offering HD video functions. Includes ZS1 (TZ6) and ZS3 (TZ7). The ZS3 is advertised as \"the world's first digital camera that records motion image in AVCHD Lite\", records 720p HD video with stereo audio and has a dedicated video record button (which replaces ZR1's 'extended zoom' button). ZR3 replaces ZR1 in some countries.","domain":"optical_engineering"}
{"url":"https://okeanarium.com/choosing-the-right-fiber-optic-cable-supplier-for-your-needs/","date":"2024-02-28T19:29:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474744.31/warc/CC-MAIN-20240228175828-20240228205828-00496.warc.gz","language_score":0.8784061074256897,"token_count":897,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__205961764","lang":"en","text":"In the realm of establishing robust network infrastructures, selecting the ideal fiber optic cable supplier is paramount. Your choice determines the reliability, durability, and performance of your network connectivity. Understanding the diverse offerings, specialized solutions, and key considerations offered by suppliers plays a crucial role in making an informed decision.\nWhen choosing a fiber optic cable supplier, it’s essential to evaluate offerings, consider specialized solutions, and prioritize quality and customization. This strategic approach ensures that your networking infrastructure not only meets but exceeds your specific requirements, paving the way for seamless and dependable connectivity.\nUnderstanding Outdoor Fiber Optic Cable\nOutdoor fiber optic cables form the backbone of robust networks designed to withstand harsh conditions and ensure reliable connectivity. Manufacturers offer various types, including single-mode, multimode, simplex, duplex, and different classifications like OS1, OS2, OM2, OM3, and OM4. These cables boast thicker outer jackets, armored options, and tailored strength members, ensuring resilience against weather and environmental challenges. Companies often tout fast delivery, competitive prices, and even offer OEM services while ensuring top-notch quality assurance.\nCrafting Indoor Fiber Optic Cable Solutions\nIndoor fiber optic cables cater to network infrastructures within buildings, demanding different structures, such as plenum and riser networks. Manufacturers provide a diverse range of options, with considerations for outer jacket materials like PVC or LSZH, varying fiber counts, and applications suited for indoor FTTH lines, CCTV data centers, and other specific needs. They ensure flame-retardant performance, competitive prices, and robust quality checks to meet diverse indoor networking demands.\nTailored Special Fiber Cable for Specific Environments\nCertain environments require specialized fiber optic cables. For instance, air blown micro cables suit FTTH networks for efficient connectivity. Mining fiber cables are designed with flame-retardant and anti-rodent properties. Tactical cables serve military operations with durability and adaptability. Customized solutions cater to outdoor applications needing protection against termites and birds. These specialized cables are essential for specific applications, ensuring robust network performance in demanding settings.\nApplications of Fiber Optic Cables\nFiber optic cables find extensive application across various industries due to their efficiency and reliability:\n- Telecommunication: Integral for long-distance communication, fiber optics ensure high-speed data transmission, facilitating internet, phone, and cable services. They offer increased bandwidth, supporting the ever-growing demand for data transfer.\n- Data Centers: In data centers, fiber optic cables form the backbone, enabling rapid and consistent data exchange between servers. Their ability to transmit large volumes of data at incredibly high speeds is crucial for the seamless functioning of modern computing infrastructures.\n- Energy & Infrastructure: Fiber optics play a vital role in the energy sector, supporting real-time data transmission in power plants and facilitating communication in the oil and gas industry. They contribute to enhancing operational efficiency and ensuring the reliability of critical infrastructure.\n- Industrial Use: Industries rely on fiber optic cables for precise and fast data transfer in manufacturing processes and automation systems. Their immunity to electromagnetic interference makes them ideal for harsh industrial environments.\n- Military & Defense: In military applications, secure and reliable communication is paramount. Fiber optic cables offer secure data transmission and resistance to signal interception, making them indispensable for military communication networks.\n- Mining: Fiber optic cables provide reliable underground communication links in mining operations, ensuring continuous and secure data transfer in challenging environments.\n- Broadcasting: Television and radio broadcasting heavily rely on fiber optics for transmitting high-quality audio and video signals. Fiber cables enable swift and reliable transmission of large volumes of data necessary for media broadcasting.\nThe Bonelinks Advantage: Customization and Quality Assurance\nBonelinks stands out as a trusted partner for custom fiber optic cables, offering competitive pricing, low MOQs, and guaranteed quality. Their custom cable configurator allows clients to specify connector types, jacket materials, ratings, modality, and length with precise fiber counts, ensuring tailor-made solutions. With a focus on quality, they employ state-of-the-art testing to guarantee long-term usability, making them a reliable choice for diverse networking needs.\nFiber optic cable suppliers play a critical role in providing reliable connectivity solutions across industries. Understanding their offerings and specialized services ensures that your networking infrastructure meets specific demands, ensuring seamless and robust connectivity.","domain":"optical_engineering"}
{"url":"http://edcourseworkspow.frenchiedavis.info/optical-coherence-tomography-phd-thesis.html","date":"2018-10-22T03:47:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514497.14/warc/CC-MAIN-20181022025852-20181022051352-00312.warc.gz","language_score":0.8280390501022339,"token_count":933,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__191040809","lang":"en","text":"Optical coherence tomography phd thesis\nThe goal of this project is to obtain quantitative assessments of intraretinal features by determining the structural and optical properties of retinal tissue with optical coherence tomography. This thesis titled snapshot spectral domain optical coherence optical coherence tomography systems are used to image the retina phd, david huang. A thesis submitted for the degree i would also like to thank the bbsrc for funding this phd 16 full field swept source optical coherence tomography. The purpose of this project is to develop a retinal imaging system suitable for routine examination or screening of mouse models that acquires fundus and optical coherence tomography (oct) images.\nOptical coherence tomography–enhanced microlaryngoscopy: preliminary report of a noncontact optical coherence tomography system integrated with a phd , jorge a. Spectral domain optical coherence tomography for glaucoma (an aos thesis) phd, by david huang, md spectral domain optical coherence tomography for glaucoma. Optical coherence tomography phd thesis award, 2013 a literature review and novel theoretical approach on the optical properties of whole blood. In this thesis quantum well (qw) and quantum dot (qd) based devices are investigated with the aim of obtaining broad bandwidth light sources for optical coherence tomography (oct) applications.\nThe eye as a window to the brain : optical coherence tomography in ms / balk, lj 2014 research output: thesis phd thesis - research vu, graduation vu ty - thes. Biomedicaloptics,opticalcoherencetomography dissertation:characterizationofcardiactissueusingopticalcoherencetomography advisor:andrewmrollins,phd.\nWe hereby approve the thesis/dissertation of phd degree (signed) _____ andrew rollins (chair of the optical coherence tomography. Citation zhao, sinan (2016) advanced monte carlo simulation and machine learning for frequency domain optical coherence tomography dissertation (phd), california institute of technology. Phd thesis at the technical university of denmark frequency-swept light sources for optical coherence tomography in the 1060nm range sebastian marschall.\nThesis opportunities research project in the field of optical coherence tomography pdf the tasks of the phd thesis comprise development of. Fergusson, james 2013 full field swept source optical coherence tomography phd thesis, cardiff university item availability restricted. Consensus standards for acquisition, measurement, and reporting of intravascular optical coherence tomography studies evelyn regar, md, phd. Optical coherence tomography: modeling and applications during the phd thesis project optical coherence tomography.\nOptical coherence tomography and phd theses in the area of optical coherence student theses thesis will only be included if the link is free. University phd dissertation defense: computational and optical tools for enabling high-resolution in vivo functional imaging with optical coherence tomography, orly liba, advisor: adam de la zerda. Monteiro marques, manuel jorge (2016) spectrometer-based optical coherence tomography systems with extended functionality doctor of philosophy (phd) thesis, university of kent.\nIk-kyung (ik) jang, md, phd director his doctorate thesis at the an international effort to study optical coherence tomography. Computational evaluation of shear stress and restenosis in stented coronary arteries using optical coherence tomography thesis degree name master of science. Brett e bouma, phd, is an professor of dermatology and health sciences and technology at harvard medical school and an physicist in the wellman center for photomedicine at the massachusetts general hospital. Sina farsiu, phd associate professor dissertation, data sets,software of photoreceptor ellipsoid zone defects on optical coherence tomography images of.\nKamal, mohammad (2011) reflective optics-based line-scanning spectral domain optical coherence tomography system phd thesis, concordia university. Adaptive optics for optical coherence tomography by david merino the thesis is submitted to national university of ireland, galway for the degree. Thesis (ph d)--massachusetts institute of technology, whitaker college of health sciences and technology, 1993.Get file","domain":"optical_engineering"}
{"url":"http://raymondjfwn777.blog5.net/5286487/eye-surgical-procedure","date":"2018-05-20T21:00:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794863689.50/warc/CC-MAIN-20180520205455-20180520225455-00413.warc.gz","language_score":0.9568770527839661,"token_count":1306,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__192719359","lang":"en","text":"Eye Surgical treatment has actually come to be a mainstream technique of vision correction, as well as this write-up will certainly explain the benefits and also negative aspects of 3 various techniques being offered to the clinical customer.\nLasik Eye Surgical procedure\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis as well as is an eye medical system which permanently deals with vision by removing a slim layer of the cornea. This treatment functions best on people with modest to high levels of nearsightedness (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism associated with nearsightedness, and also who have thick corneas. It is the most popular surgical vision modification method.\nPeople with typical eye view see objects clearly because pictures are brought into a right focal point by the cornea as well as lens of the eye. Ideally, the cornea's curvature is uniformly matched to its size in a regular eye. Individuals with astigmatism, nearsightedness or hyperopia have actually off-and-on formed corneas, so the items seen are not concentrated properly. LASIK changes corneal form by accurate removal of corneal cells, and also by doing so corrects the eyes' concentrating power.\nThere are, nonetheless, threats to LASIK eye surgical procedure.\nThere is a remote possibility of total loss of vision. If this occurs, it is typically since the person had a pre-existing condition which must have prevented the surgical treatment in the first place, such as pregnancy, cataracts, arthritis, diabetic issues, glaucoma, or lupus. People with large pupils are likewise inadequate candidates for LASIK. Dry eye disorder will be worsened by this treatment.\nA couple of people complain that they completely see \"ghost\" images, have obscured vision, diminished contrast and also bad evening vision. When LASIK wased initially introduced, 5% of people had post-operative grievances; nonetheless, refinements in the procedure have triggered this price to drop to less compared to 1% if LASIK is executed by skilled experts and individuals are effectively evaluated before surgery. If issues do happen, they could often be resoved by a retreatment.\nFDA has actually approved LASIK laser eye surgery since 1998. While there are a lot of pleased clients, there are however no long-term research studies about its effects. Understand the limitations as well as the threats of LASIK eye surgical treatment before you sigh up for the treatment.\nThough much less well known, these tiny implants can boost vision in patients with moderate to modest myopia without the danger of irreversible eye damages intrinsic in the cells removal method of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter shape. Though slightly less precise compared to LASIK, they are removeable and also replaceable, so if the patient has an unexpected over- or under-correction, the implant can be removed and also another of a different dimension put to acquire the preferred improvement. The implants are located at the edge of the cornea, so the central visual area is completely undamaged and intact, as well as the toughness of the cornea is undiminished, making it a far better choice for pilots as well as those who engage in contact sporting activities where eye injury is an opportunity.\nIntacs disagree for extreme myopia and also more than minor astigmatism (1.00 diopters), as the cornea can only be stretched so far. If the Intacs are eliminated, vision go back you could try here to its preoperative degree. Other than vision improvement, Intacs are likewise utilized to treat keratoconus.\nIntacs are FDA authorized as well as 10 year researches have actually disclosed no significant troubles with Intacs as well as few patient grievances; nevertheless, since the treatment takes extra training compared to LASIK, there are less eye surgery centers supplying it. Nonetheless, the Intacs internet site gives a list of specialists in each state, also a few in Canada, Europe and Mexico.\nBecause many individuals do not intend to take the chance of LASIK and Intacs can not assist those with extreme vision troubles, intraocular lens implants (IOL) are a new choice accepted by the FDA in 2004 to correct moderate to severe nearsightedness. The Artisan lens, manufactured by Ophtec, is similar to the type of lens implant utilized to restore vision following cataract eye Learn More Here surgical treatment.\nThe new IOL, called the Artisan, is intended for only patients that have 2.5 diopters or much less of astigmatism.\nThe fabricated lens does not change the natural lens, but is inserted before it. The major issue found with the dental implant was the constant loss of endothelial cells in the corneas of people that got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are important in keeping the cornea clear. A three-year research showed a regular consistent loss of endothelial cells of 1.8 percent a year. At this moment, no one can forecast whether this loss will certainly proceed at the very same price indefinitely, or perhaps its influence on corneal feature.\nTo reduce lasting impacts of the device on the corneal endothelium, the FDA is calling for that the new lenses be labelled to define that they should just be implanted in people whose corneal endothelial cells are thick sufficient to withstand small cell loss.\nMuch more significant issues were few: retinal detachment (0.6%), cataract advancement (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up survey of its implant individuals to better evaluate the post-surgical occurrence of cataract development, retinal detachment as well as various other ophthalmic illness.\nThe Craftsmen lens is intended to be a long-term implant.Though it could be removed surgically, vision might not constantly return to just what it was prior to getting the lens. Because it does not impact astigmatism, people with this problem might still need glasses.","domain":"optical_engineering"}
{"url":"https://redtri.com/color-blind-glasses-kids-enchroma-video-kid-sees-colors-for-first-time/","date":"2021-05-12T21:57:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989705.28/warc/CC-MAIN-20210512193253-20210512223253-00275.warc.gz","language_score":0.9346320629119873,"token_count":398,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__176976185","lang":"en","text":"The world is a colorful place, but for kids who are color blind, much less so. Eyewear company EnChroma aims to make the world that much brighter for people with color blindness with their special glasses—and that’s what makes its —glasses for kids with color blindness—so incredibly important.\nAlso known as color deficiency, being color blind means someone can’t decipher different colors from each other and usually it’s between reds and greens (blues can be also hard to distinguish, depending on the type of color blindness). But when given the option to wear a pair of glasses that increase vibrancy and color discrimination, all that changes.\nDon’t believe us? Well grab your box of tissues and sit back to watch Cayson see the world in full color for the very first time in the video below.\nA hereditary condition, roughly 1 in 12 males and 1 in 200 females are color blind. Children who manage color blindness can have difficulty in school following notes on the board made in different colors, color-coded instructions and other color-specific activities.\nCurrently, glasses from EnChroma are the only glasses on the market that enhance colors without disrupting color accuracy. You can see from the video above just how life changing being able to see the full color spectrum––to the point of happy tears!\nEnChroma has been making glasses for color blindness for years, and the new Twain style is perfect for smaller faces. Kids are more likely to wear the better-fitting glasses because they are comfortable and more effective.\nWhile the glasses don’t come cheap—children’s pairs start at $269each—it’s a small price to pay to bring the gift of color to life for kids who need it. You can see plenty of more amazing videos of people seeing colors for the first time on the EnChroma Facebook page.\nPhotos: Courtesy of EnChroma","domain":"optical_engineering"}
{"url":"https://www.realgeeks.com.ng/2019/03/11/scientists-have-learned-how-to-create-cheap-infrared-cameras-why-do-we-need-them/","date":"2019-07-21T03:26:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195526818.17/warc/CC-MAIN-20190721020230-20190721042230-00107.warc.gz","language_score":0.9353846907615662,"token_count":354,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__61283979","lang":"en","text":"Cameras that capture infrared radiation invisible to the human eye can be extremely useful in both scientific equipment and consumer technology. For example, they can be successfully used in smartphones, adding a thermal imager function, as well as in cars with autopilot for pedestrian recognition. Manufacturers can not introduce them into their products only because of their high cost, but a group of scientists from the University of Chicago came up with how to reduce the cost of technology and make infrared cameras a mass product.\nSince the wavelength of infrared radiation is much shorter than that of visible light, a more advanced camera filling is needed to capture them. In particular, they need several layers of semiconductors, in the manufacture of which often there are errors that lead to high costs. That is why the researchers decided that they should use a different technology to capture short and medium waves of infrared light.\nResearchers Xin tan and Philippe Guillot-Sionnest explained that nanoparticles called quantum dots are perfect for this purpose. They are able to adjust to capture waves of different lengths,and this range just includes infrared waves. Short waves provide information about the texture and chemical composition of the object, and the average — about the temperature. The researchers set up two sets of quantum dots on different waves and combined them together, overlaying them in layers on a silicon plate.\nCollecting multiple wavelengths in the infrared gives you more spectral information-it’s like making a black and white TV color.\nXin Tang, one of the authors of the project\nThe researchers claim that this approach significantly reduces the cost of infrared cameras by reducing the cost of materials and saving time. In just a few minutes,you can create a device that will not be inferior to expensive cameras.","domain":"optical_engineering"}
{"url":"https://www.genwise.in/single-post/why-is-the-sea-blue-a-question-a-nobel-prize-and-the-birth-of-a-global-industry","date":"2024-02-24T18:08:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474544.15/warc/CC-MAIN-20240224180245-20240224210245-00755.warc.gz","language_score":0.959945559501648,"token_count":807,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__103936417","lang":"en","text":"“A voyage to Europe in the summer of 1921 gave me the first opportunity of observing the wonderful blue opalescence of the Mediterranean Sea.”– Prof. C V Raman, Nobel Prize in Physics, 1930 (the first non-white, Indian or Asian to receive a Nobel Prize in any branch of Science)\nThis story begins with a voyage undertaken by C V Raman to the UK in the summer of 1921. Observing the Mediterranean while on board the ship, Raman wondered why the sea was so blue. The initial answer seemed to be that it was due to the scattering of light by water molecules, same as the explanation provided by Lord Rayleigh for why the sky is blue.\nTo test this explanation, Raman started experiments with his scientific collaborators and students at the Indian Association for the Cultivation of Science (IACS), Calcutta upon his return to India in September 1921. It soon became evident to them that the question was a fundamental scientific problem, and that the molecular scattering of light was a very general phenomenon which could be studied in gases and vapours, as also in liquids and solids.\nFor the next seven years, Raman and his associates continued to research this question, with many improvements to their scientific apparatus and techniques as they learnt more and more about the subject. In February 1928, Raman announced his findings to the press and sent his experimental data to Nature, where it was published in May 1928. The ‘Raman effect’ as it soon came to be called, was not only a phenomenon in itself, but one of the earliest proofs of the quantum nature of light. By 1929, the Raman effect was independently verified by other researchers, and in 1930 the Nobel followed.\nWhat is the Raman effect?\nThe Raman effect is the inelastic scattering of light by matter, meaning there is an exchange of energy between a photon of light and a molecule that it strikes. The molecule either gains (usually) or loses energy, so the scattered light has an energy different (usually lower) from the incident light. This changes the frequency and therefore the colour of the scattered light. The change of colour can act as an ‘optical fingerprint’ for the molecule.\nWhy does all this matter?\nThis discovery of an optical fingerprint of a material forms the core intellectual property for the field of Raman spectroscopy, which is a non-destructive, in situ method to analyse materials and live tissue. It has many applications that directly and indirectly improve the quality of our lives, including:\nChemistry – to identify molecules and study chemical bonding and intramolecular bonds.\nSolid-state physics – to characterise materials and measure temperature.\nBiology and medicine – for tissue imaging, wounds characterization and many other uses.\nBio-pharmaceuticals – to identify active pharmaceutical ingredients (APIs) and their polymorphic forms, if any.\nInvestigation of art and heritage works.\nAlmost 100 years after the original research, Raman spectroscopy remains a vibrant area. Over the years, over 25 variants of Raman spectroscopy have been developed, with new applications being found all the time. The global market for Raman spectroscopy is estimated to be $1.8 billion in 2021, with numerous companies all over the world making a range of products for the above applications.\nThe original research and intellectual property have been continuously expanded and improved upon by generations of researchers, engineers and entrepreneurs to create an entire industry. And it all began with one man’s curiosity about why the sea is blue.\nIn my upcoming course, Products, IP and Entrepreneurship, we will be exploring this journey of an idea, through its many stages of nurturing and support, the many challenges it faces along the way, to its final destination as a product and maybe an industry.\nRead more about the author of this post, Kiran HR, here.","domain":"optical_engineering"}
{"url":"https://www.xinyiglass.com/en/architecturalglass/info.aspx?itemid=813","date":"2024-02-25T22:03:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474643.29/warc/CC-MAIN-20240225203035-20240225233035-00008.warc.gz","language_score":0.9331876635551453,"token_count":188,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__158593028","lang":"en","text":"Low-E glass (low-emissivity glass) is a coating product which is made by coating various layers of metal or other compounds on the glass surface. It has high transmittance to visible light and high reflection to medium/long wave infrared. Compared with ordinary glass, it has excellent thermal-insulation performance and good visible-light transmittance. It is divided into single-silver, double-silver and triple-silver products based on the number of layers, and can be subdivided into various special functional products such as heat preservation, shading, anti-glare and temperable glass.\nIt can effectively filter out the near-infrared ray in sunlight, reduce the sunshade coefficient while maintaining the visible light transmittance, effectively reduce the heat of the solar radiation, create a comfortable living environment, reduce the cost of summer cooling, and can be used to solve the contradiction between lighting and shading.","domain":"optical_engineering"}
{"url":"https://www.besttrailcamerareviews.org/thermal-camera-for-hunting/","date":"2022-05-24T12:17:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662572800.59/warc/CC-MAIN-20220524110236-20220524140236-00632.warc.gz","language_score":0.892952561378479,"token_count":4230,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__191050127","lang":"en","text":"Anyone who hunts will inevitably spend time outdoors at night. Whether it be varminting, scouting or tracking a kill, hunters inevitably need to see in the dark. Flashlights work, but they attract attention. Night vision works as well, but animals can stay concealed enough to avoid detection. The one thing they can’t hide: their heat signatures.\nThermal cameras are the high-tech and unbeatable solution for hunters out after dark. Rather than see the light that objects reflect, thermal cameras see the heat they emit. The body heat of animals glow on the screen, through cover and in the middle of the pitch-black night.\n9 Great Thermal Cameras for Hunting\n1. The Winner\nThe Reveal by Seek is an entry-level thermal camera. It has a sturdy, rubber-coated case, making it a good choice for hunters who need to find the occasional hot spot at work or in residential settings. It has a detection range of -40 to 626 degrees Fahrenheit, and it can detect targets at a range of 500 feet. Resolution is on the low side at 206x156, but distant objects (like animals) present well on the 2.4-inch color display (with 240x320 resolution).\nThe Reveal also has an onboard, 300-lumen LED flashlight and can operate for up to 10 hours a fully charged Lithium-ion batteries. The 36-degree field of view is wide enough at distance, but the unit struggles to display images with much clarity up close. Having a fixed, non-zooming focus doesn’t help that issue, but for hunting purposes it is not a problem. The biggest difficulty a hunter might have is with the awkward ergonomics – you look down at the screen and point the top-mounted detector downrange.\n- Includes a 300-lumen flashlight\n- 500-foot viewing distance is plenty for woodlands\n- 10 hours of use per charge\n- Broad temperature range for the class\n- One of the more affordable thermal cameras\n- Micro SD card can be unwieldy\n- Awkward to use compared to some\n2. FLIR 55903-1022 Model T600-25\nUsed primarily in industrial applications, the FLIR T600 is a feature-laden thermal imaging camera. It has a 5-megapixel onboard optical digital camera with an LED light for taking comparative pictures in the visible spectrum. The T600 also has 480x360 IR resolution and is capable of thermography at temperatures from -40 to 1202 degrees Fahrenheit and at a plus-or-minus 2 degrees accuracy.\nThermal images and video (30 frames per second) are in full color and stored as either JPEGs or MPEG-4 on a removable SD card. The onboard computer corrects for emissivity (effectiveness at emitting radiation), reflected and atmospheric temperature, relative humidity and object distance. Interfaces include USB-mini, USB-A, Bluetooth, digital video out, and Wi-Fi. Batteries are Lithium-ion, ad the camera can run for 2.5 hours on a single charge (2.5 hours to charge).\nPossibly more sensitive than the average hunter needs, the T600 has a spectral range of 7.5 to 14 micrometers. It has an onboard laser for designating targets for measurement. Its 4.3-inch touchscreen has 800x480 resolution, and Multi-Spectral Dynamic Imaging adds visible light to the thermal images. The magnesium body has a rotating (120 degrees) optical block. It’s a lot of camera – for the serious hunter.\n- IR resolution among the highest on the market\n- Wide, 45-degree field of view\n- Full-color images with visible light added\n- Wi-Fi and Bluetooth connectivity for FLIR Tools Mobile suite\n- Accurate temperature readings for industrial uses\n- Costs more than many other thermal imaging systems\n- Only 2.5 hours of operation time\n3. Seek Thermal Compact\nSeek Compact for iOS-Apple\nIf you haven’t checked out thermal cameras since they cost the same as a small car, this little guy may surprise you. The Seek Compact line turns your cell phone into a thermal camera, plugging into the Lightning port and using the phone’s screen to display images. It has an IR resolution of 206x156 and 36-degree field of view, giving it a 1,000-foot detection range. The CompactXR variant trades a slimmer (20 degrees) field of view for a longer (1,800 feet) detection range.\nImages in either option display in full-color, with nine different color-palette options. Image contrast may not be quite as good as some competitors, but the temperature readings are accurate, the lens focuses and the case is waterproof. The Seek Compact stores images and videos on and gets its power from an iPhone. So if your phone is charged, you’re good to go.\n- Plugs into iPhone Lightning port\n- 1,000-foot detection range great for hunting\n- Broader temperature range than many stand-alone units\n- Plenty of color-display options\n- Affordable and portable thermography\n- Nice that it’s waterproof, but the iPhone is not always\n- Not compatible with iPhone 8 or later\n4. Good Value\nSeek Compact Imager for Android\nSeek would have been remiss to offer the Compact for the IPhone and not for Android. Just like the other variant, this Compact has 206x156 IR resolution. It produces full-color thermal images, which are customizable in nine different color palettes. Its temperature detection ranges from -40 degrees to 626 degrees Fahrenheit, which is among the best in its class.\nThese thermal cameras plug directly into the charging ports for Google Nexus, Samsung Galaxy, HTC and Motorola phones. The images are distinct, though they lack the contrast and clarity of some more pricey competitors. With a 1000-foot range (1,800 on the CompactXR) and a 36-degree field of view (20 degrees on CompactXR), the Seek Compact is one of the most affordable entry points into the world of thermal imaging.\n- Impressive 1000-foot detection range\n- Nine color palettes for customization\n- Broad temperature range\n- Affordable and portable\n- Requires no charging, works on phone’s power\n- Not the clearest imaging on the market\n- Required app takes some figuring out\n5. Monocular Style\nFLIR Scout TK\nFLIR is a major player in the thermal imaging market, from industrial to individual applications. The Scout TK is a pocket-sized monocular with a 160x120 IR resolution. It is the smallest and lightest option in FLIR’s Scout lineup. The LCD display has a 640x480 resolution, providing good contrast to objects over its 100-yard detection range. There are nine full-color palette options, including InstAlert, which highlights moving objects in the frame.\nThe Scout TK is waterproof and submersible, with a drop-test rating of two meters. The 20-degree by 16-degree field of view is a bit limited, but the menu buttons are simple and intuitive. A short push of a button captures still images, while a longer push of the same button triggers video recording. Images are stored onboard (no SD card) and transferred to computer via USB. The Lithium-ion battery provides better than five hours of power on a full charge, and the unit takes less than five seconds to power on.\n- Compact and portable monocular\n- Simple, 4-button operation\n- InstAlert notifies user of in-frame motion\n- Limited range\n- No removable image storage\n6. FLIR Systems Thermal Imager\nFLIR Scout III 240\nThe FLIR Scout III offers third-generation thermal optics in a simple-to-use monocular. Its VOx microbolometer has 240x180 IR resolution, and its LCD display has a resolution of 640 x 480 pixels. Submersible and waterproof, the Scout III is drop-test rated at one meter. The 30-hertz video refresh rate is fast and fluid, leading to hassle-free operation.\nThere are three color palettes to choose from – White Hot, Black Hot and InstAlert. Start-up time is a miniscule 1.5 seconds, and the Lithium-ion battery lasts better than five hours on a full charge. There is no removable image storage. The Scout III has a relatively thin 23-degree field of view, but it will detect a man-sized target out to 383 yards.\n- 1000-plus feet detection range\n- Excellent definition on LCD display\n- InstAlert notifies user of movement in field of view\n- Weighs less than one pound\n- Next-level thermal imaging – crisp, clear and fluid\n- No removable image-storage device (SD card)\n- No full-color palettes\n7. Extech Instruments FLIR T620 Infrared Thermal Imaging Camera\nFor the professional electrician or mechanical technician and hunter, FLIR’s T620 is a full-color thermographic camera. Its 640x480 IR resolution is state-of-the-art, and its 4.3-inch LCD display has 800x480 resolution. The 30-hertz refresh rate provides fluid video, which is recorded as MPEG-4 files on a removable mini-SD card. Still images are stored as JPEGs. With all of its onboard features (laser pointer/locator, built-in LED illuminator, voice/text annotation, etc.), it’s no surprise that the Lithium-ion battery lasts only 2.5 hours per charge.\nThe T620 offers picture-in-picture display and draw-on thermal and digital photos. Users can switch to the visible light spectrum and shoot photos with a 5 megapixel resolution. This thermal camera also offers video streaming via Wi-Fi and has Bluetooth connectivity. Other outputs include digital video out, HDMI and USB 2.0. The field of view is only 15 degrees, but the T620 also has 1x to 4x continuous digital zoom. Operation temperatures range from 5 to 122 degrees Fahrenheit.\n- Multiple functions not found on other thermal cameras\n- Offers visible-light digital photography\n- 4x digital zoom\n- Full-color, high-definition imagery\n- Fluid, uninterrupted video\n- Costs more than most other options\n- Short battery life (2.5 hours)\n8. Thermal Imaging Camera-Handheld Infrared Camera\nHti-Xintai Handheld Infrared Camera\nChinese maker Hti-Xintai may not be a household name in the U.S., but this thermal camera may change that. With a detection range of -4 to 572 degrees Fahrenheit and an IR resolution of 220 x 160, thermal camera hunting with this unit will be simple and effective. It has five color palettes, including the popular White Heat and Black Heat, as well as full-color options.\nThe 2.4-inch display screen is also full-color, and there is a removable SD card for image transfer. The 35-degree field of view is wider than most, and the comfortable pistol grip and heads-up display offer convenient and ergonomic use. Battery life is good on the five AA batteries, though Lithium or rechargeable batteries will improve the cost of operation. A handy tripod is also included.\n- Good detection range for the cost\n- Full color display\n- Ergonomic pistol-grip style\n- Reads temperature of targets\n- Offers visible-light imagery\n- From a lesser-known brand\n- Relatively low IR resolution\n9. Infrared Camera, 70 mK, Fixed\nSeek Reveal Pro\nSeek’s Reveal Pro is the company’s premier thermal camera. It has 320x240 IR resolution and is adjustable for thermal level, thermal span and emissivity. The rubberized case includes a 300-lumen LED flashlight. There are nine color palettes and a 2.4-inch color display, which is coated in Corning’s Gorilla Glass. Temperatures can be displayed in Fahrenheit, Celsius or Kelvin.\nWith its variable 4X digital zoom, the Reveal Pro can detect infrared radiation at ranges from 12 inches to 1,800 feet. Its 32-degree field of view is as wide for the category as its temperature range is broad (-40 to 626 degrees Fahrenheit). Like the base-model Reveal, the Pro version has awkward ergonomics. Its operation is a bit like looking down at the remote control as you change TV channels. There is also only 4GB of internal storage available, but it is rechargeable and lasts about four hours per charge – plenty to find a deer in the brush after the sun sets.\n- High IR resolution for the category\n- Displays in three temperature scales\n- Detection range from 12 inches to 1,800 feet\n- Tough, non-slip rubber case\n- Adjustable thermal-image controls bring out details\n- Only 4GB internal storage\n- Awkward to operate, especially pointing down\nThermal Camera for Hunting Comparison Chart\n|Thermal Camera||Display Screen||Resolution||Weight||Rating|\n|FLIR 55903-1022||4.3\"||480x360||14.55 pounds||N/A|\n|Seek Thermal Reveal||2.4\"||240×320||0.16 ounces||8|\n|Seek Thermal Compact||N/A||206×156||3.68 ounces||7|\n|Seek Compact Imager||N/A||206×156 IR||3.68 ounces||7|\n|FLIR Scout TK||N/A||160×120 IR||6.1 ounces||8|\n|FLIR Systems||N/A||240×180 IR||1.6 pounds||8|\n|Extech Instruments FLIR||4.3\"||800×480||N/A||8|\n|Hti-Xintai||N/A||220 x 160||14.6 ounces||8|\n|Seek Thermal 70 mK||2.4\"||320 x 256||12.8 ounces||9|\nThermal Camera Buying Guide\nIt’s no wonder that hunters would use thermal cameras, but are they really necessary? What is thermal imaging anyway?\nTrail cameras use infrared light, which onboard LEDs produce, to illuminate the camera’s field of view. The light the LEDs emit is typically at the low end of the near-infrared spectrum (850 nanometers – 1.4 micrometers). Visible red light is just below the bottom of that threshold, which is why a glowing red light can sometimes be seen around the emitters.\nPassive Infrared Sensors\nTrail cameras use passive infrared (PIR) sensors as part of their triggering circuitry. They detect the differences in the temperature of the surrounding area and the body heat of an animal passing through the detection zone. The sensor’s face is covered in a pyroelectric material that generates electricity when it is exposed to heat. But their cameras operate just like any other DSLR. Trail cameras see the near-infrared light the emitters cast, and they translate that light into the visible spectrum. Infrared thermography works differently.\nThermal imaging devices and PIR sensors work the same way. They detect long-wave infrared radiation, which has wavelengths between 9 and 14 micrometers – far above that of near-infrared radiation. This area of the spectrum corresponds to the temperatures we experience in everyday life. People, animals, plant life, buildings, etc., all emit long-wave radiation. It is not incorrect to say thermal cameras see heat, but they only see heat that occurs in the long-wave infrared bandwidth.\nUnlike night-vision cameras, thermal cameras do not detect light reflected off objects. Night-vision cameras amplify whatever small amounts of light are available, even if it is just starlight, but thermal cameras can work in absolute darkness or broad daylight. Their images are actually displays of the temperature differences in their field of view.\nHow it Works\nThermal cameras detect the infrared radiation that objects emit, but they also detectthe radiation that they reflect or transfer to objects. The camera’s display is not of the actual temperature of the objects in view. Rather, the camera uses algorithms to approximate all three values (reflected, transmitted and emitted radiation). The image it displays is built from those values. The infrared sensor on a thermal camera works similarly to the PIR sensors on trail cameras and motion detectors.\nA bolometer is a sensor that detects electromagnetic radiation. It was invented by the astronomer Samuel Langley in 1878. In its simplest form, a bolometer consists of a thin absorptive element that is attached to a reservoir, which has a constant temperature. When the (typically) metal absorptive layer experiences a rise in temperature, the temperature of the reservoir rises in turn, which is detected with an electric current. The first bolometer could detect the heat of a cow from a distance of a quarter mile.\nA microbolometer is a special type of bolometer that thermal cameras use to detect infrared radiation. Microbolometers consist of an array of pixels, each composed of several layers. The outer layer is an infrared absorbing material. A space for cooling is followed by a substrate layer and a readout integrated circuit. An electrode connects the layers for transmitting detected radiation via electric signals. The whole array of pixels is then normally encased in a vacuum.\nThere are a wealth of materials that manufacturers of microbolometers use for the layers. Some are more sensitive than others, and of course some are more costly than others. Another factor affecting image quality is responsivity, which is a measure of the ability of the detector to convert radiation into an electrical signal. But nothing effects image quality like resolution.\nThe array of pixels is added up to calculate resolution. Anyone familiar with this concept will naturally assume that higher resolutions equal better images. Consumer-market thermal cameras can have as low as a 160x120 resolution or as high as a 320x240 resolution, and even higher resolutions are available if money is no object.\nHaving higher resolution does not necessarily equate to producing a better image, though. As microbolometer pixel arrays get more complex, their individual pixels are getting smaller and smaller. Smaller pixels are necessarily less sensitive, though, meaning the images they produce can have more visual noise.\nDepending on the sensitivity of the materials in the microbolometer, some thermal cameras can see farther than others. Lower cost is a good indicator of shorter detection ranges, but it is not a guarantee. Ranges can extend from tens of yards for some thermal cameras to more than a thousand yards for others. Hunters should consider their terrain before investing in the ability to thermally image game from half-mile distances. You simply never have line of sight that far in the woods.\nLike trail cameras, thermal cameras use many different solutions for their power needs. Some have enclosed Lithium-ion batteries and recharge like your cordless drill. Others use replaceable or disposable batteries. The choice of battery will obviously affect battery life, but no one should expect to get the months-long use from thermal cameras that trail cameras offer. The life spans of thermal cameras are estimated in hours, and are based on constant use.\nThermal cameras may not be the least expensive hunting tools, but there are times when they are indispensable. They make spotting game simple at any time of day or night. They can peer through brush and canopies to see what’s hiding, and they help track and locate animals that might otherwise have been lost. They also have many uses around the house (insulating, leak locating, etc.) that help them pay for themselves over time. Once you spend a little time with a thermal camera, you’ll wonder how you ever lived without it.","domain":"optical_engineering"}
{"url":"https://gypsy.ninja/quantum-distortion-observed-empty-space/","date":"2018-10-22T08:39:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514879.30/warc/CC-MAIN-20181022071304-20181022092804-00383.warc.gz","language_score":0.950014591217041,"token_count":496,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__119385929","lang":"en","text":"Never before Seen Strange Quantum Distortion Observed In Empty Space\nA very weird and never before seen phenomenon is known as a vacuum birefringence was observed only on an atomic scale. It’s known to appear around neutron stars with extremely powerful magnetic fields that give rise to a region of empty space to generate matter and then make it disappear.\nThis polarisation of light in a vacuum related to strong magnetic fields was thought possible as early as the 1930’s by two physicists – Werner Heisenberg and Hans Heinrich Euler. They saw it as a possible product of the quantum electrodynamics (QED) theory. This theory talks about how light and matter interact with each other.\nAnd interestingly enough, this strange quantum distortion has been observed by a team of scientists from Italy and Poland. By making use of the European Southern Observatory’s (ESO) Very Large Telescope (VLT), the team was able to observe a neutron star, roughly 400 light-years away. Neutron stars, in general, have very powerful magnetic fields of their own.\nAccording to Einstein and Newton, vacuums are empty space where light passes through without anything to hinder it or affect it in the slightest. But according to quantum electrodynamics, this is not the case. “Empty space” is actually full of virtual particles that continuously pop in and out of existence. And strong magnetic fields can and will modify these vacuums.\n“The high linear [polarization] that we measured with the VLT can’t be easily explained by our models unless the vacuum birefringence effects predicted by QED are included,” said Mignani.\nBut the technology used is not as powerful as it should, so as to see exactly what’s happening. With better telescopes, much more can be discovered or understood about the phenomenon.\n“[Polarization] measurements with the next generation of telescopes, such as ESO’s European Extremely Large Telescope (EELT), could play a crucial role in testing QED predictions of vacuum birefringence effects around many more neutron stars,” he said.\n“This measurement, made for the first time now in visible light, also paves the way to similar measurements to be carried out at X-ray wavelengths,” researcher Kinwah Wu said.","domain":"optical_engineering"}
{"url":"https://zimpertec.com/Indoor-LED-Lamps/Bulb-Lamps","date":"2020-04-03T17:19:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370515113.54/warc/CC-MAIN-20200403154746-20200403184746-00510.warc.gz","language_score":0.8104822635650635,"token_count":143,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__40374527","lang":"en","text":"BL series lamps are high lumen output, long life,reliable lamps for indoor lighting applications. Due to their advanced and unique over temperature protection, BLp series lamps can withstand extreme conditions.\nUsing high frequency switching LED driver technology with no electrolytic capacitors, Zimpertec lamps provide excellent performance in light efficiency, lifetime and reliability.\n12VDC: Power range: 1W, 2W, 3W, 5W, 7W\n24VDC: Power range: 5W, 7W\n· LED Lifetime: >36,000h\n· High efficiency LED Lamp\n· 12VDC/24VDC LED driver\n· Over temperature\n· Reversepolarity protection","domain":"optical_engineering"}
{"url":"https://www.venturasportsmedicine.com/arthroscopic-surgery-orthopedic-surgeon-ventura-camarillo-oxnard-ca.html","date":"2022-12-05T08:44:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711013.11/warc/CC-MAIN-20221205064509-20221205094509-00800.warc.gz","language_score":0.9269210696220398,"token_count":133,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__272209745","lang":"en","text":"Arthroscopy is a minimally invasive diagnostic and surgical procedure performed for joint problems. Shoulder arthroscopy is performed using a pencil-sized instrument called an arthroscope. The arthroscope consists of a light system and camera that projects images of the surgical site onto a computer screen for your surgeon to clearly view.\nAn arthroscope is a small, fiber-optic instrument consisting of a lens, light source, and video camera. The camera projects images of the inside of the joint onto a large monitor, allowing your surgeon to look for any damage, assess the type of injury and repair the problem.","domain":"optical_engineering"}
{"url":"https://www.vho.be/fr/catalog/examination/refraction/pediatric-autorefractor-plusoptix-a12-r","date":"2022-08-18T20:57:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573399.40/warc/CC-MAIN-20220818185216-20220818215216-00247.warc.gz","language_score":0.8663797974586487,"token_count":173,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__23650448","lang":"en","text":"The plusoptix is a binocular hand-held photorefractor specially designed for infants & children\nThe Plusoptix device measures both eyes simultaneously and provides reliable measurement values of refraction, pupil diameter, interpupillary distance and symmetry of corneal reflexes. With the binocular measurement anisometropia and anisocoria can be detected immediately. Used in undilated pupils, measurements of hyperopia, myopia, astigmatism and anisometropia provide valuable data for a quick vision examination. Results can additionally be used as a starting point for retinoscopy or to confirm retinoscopic results.\nIf retinoscopy under cycloplegia is required, the process is faster because of the pre-existing measurement values, especially cylinder and axis. Furthermore you have a baseline to compare with.","domain":"optical_engineering"}
{"url":"https://theeyeglassiers.com/orthokeratology/","date":"2018-04-20T17:55:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125944677.39/warc/CC-MAIN-20180420174802-20180420194802-00081.warc.gz","language_score":0.9314772486686707,"token_count":172,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__14385252","lang":"en","text":"Orthokeratology (or Ortho-K) is a process of gently reshaping the cornea by wearing a specially shaped contact lens while asleep to be able to see without correction (glasses or contact lenses) while awake. Imagine the joy of waking up, seeing well without any corrective lenses and not having to wear a correction the rest of the day!\nAn FDA approved procedure, Ortho-K has been in clinical use for over 40 years and has been shown to be a safe alternative to refractive surgery for most patients. A keen proponent of holistic approach to eye care and eye health, Dr. Kotecha actively seeks ways to reduce or minimize progression of myopia at any age but especially in children and young adults.\nDr Kotecha is a member of the American Academy of Orthokeratology & Myopia Control.","domain":"optical_engineering"}
{"url":"https://highestpayingjobs.org/what-is-fiber-optics-engineering-how-you-can-build-your-career/","date":"2023-12-07T17:33:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100677.45/warc/CC-MAIN-20231207153748-20231207183748-00635.warc.gz","language_score":0.9497074484825134,"token_count":1984,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__277690810","lang":"en","text":"If you’re interested in working with cutting-edge technology, then a career in fiber optics engineering may be for you. Fiber optics engineering is all about designing and developing systems that use light to transmit data. It’s a rapidly growing field with lots of opportunity for advancement. Here’s what you need to know about fiber optics engineering, including how to build your career in this exciting field.\nFiber optics engineering is the study and application of optical fiber in various settings. It is a field that is constantly evolving, as new technologies and applications for fiber optics are developed.\nThose who enter the field of fiber optics engineering can expect to be involved in the design, installation, and maintenance of fiber optic systems. They may also be involved in research and development, as well as teaching others about the technology.\nWith the ever-growing demand for faster and higher-capacity communications, those with a background in fiber optics engineering will be in high demand. There are many different career paths that can be followed in this field, so those with the relevant skills and knowledge can build a successful career in fiber optics engineering.\nHow do I start a career in fiber optics?\nIf you’re interested in pursuing a career in fiber optics, you might consider a fiber optics certification. Certification through education is a great way to get started in this field, and it can help you stand out from the competition. There are a few things you’ll need to do to get started:\nFind an FOA-approved school: The Fiber Optics Association (FOA) is the leading global organization for fiber optics education. They maintain a list of approved schools that offer fiber optics certification programs.\nPrepare for training: Once you’ve found an approved school, you’ll need to complete the necessary training. This typically includes both classroom and hands-on instruction.\nGet certified: After you’ve completed your training, you’ll need to pass an exam to earn your certification. The FOA offers a variety of certification options, so you can choose the one that best fits your needs.\nConsider earning a certificate: In addition to certification, you might also consider earning a certificate in fiber optics. This can be a great way to show potential employers that you have the skills and knowledge to be successful in this field.\nThe pay for fiber optics technicians is great, according to Payscale. They make an average of $61,000 annually. Keep in mind that means you can earn significantly more than that if you stay in the field.\nWhat is fiber optics career\nA fiber optics installer is responsible for installing, preparing, and troubleshooting fiber optic cables and systems. The professional designs optical paths and passive optical networks. They have a good understanding of the types of cables, cable color codes, and other cabling techniques.\nA fiber optic engineer is responsible for the installation of broadband telecommunication cables, which include fiber optic cables. These cables transmit information by converting messages into light pulses which travel through these cables rapidly over long distances. As a result, fiber optic engineers must have a strong understanding of both the installation process and the underlying technology in order to be successful.\nHow long does it take to learn fiber optics?\nCertification programs typically consist of around 25 credit hours, which is less than half of the credit hours required for an associates degree. Certification programs may offer more specialized training than an associates degree program, and may be a good option for students who are interested in a particular field or career.\nFiber optic cables are made up of very thin strands of glass or plastic that are about the width of a human hair. These strands are arranged in bundles, and each bundle contains thousands of individual fibers. The glass or plastic that makes up the fiber is incredibly pure, and it is this purity that allows light to travel through the fiber with very little loss.\nIs there a future in fiber optics?\nFiber optic technology is constantly evolving to meet the ever-growing demand for speed and efficiency. This technology uses light to transmit data, making it much faster than other methods. As the world becomes increasingly reliant on technology, the need for faster and more efficient communication will only continue to grow. Fiber optic technology is the perfect solution for meeting this demand.\nThe average salary for a certified fiber optic technician (CFOT) is $125,328. This position requires basic knowledge of fiber optics and telecommunication systems. A successful candidate for this position will have excellent customer service skills and the ability to work independently.\nHow much does fiber optics make\nFiber Optic Technicians are responsible for the installation, maintenance, and repair of fiber optic cables and systems. They typically work in telecommunications and IT departments, and their salaries can vary depending on experience, employer, and location. In the US, salaries for Fiber Optic Technicians range from $25,101 to $81,090, with a median salary of $52,920.\nOptometrists are primary eye care providers who examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye.\nDispensing opticians are eye care professionals who are trained to dispense, fit, and adjust eyeglasses and other ophthalmic devices according to an eyewear prescription or the specifications of an ophthalmologist or optometrist.\nWhy fiber optic technology is important?\nFiber optics is capable of transmitting more data at faster speeds over longer distances than other technologies. This is because it uses light to transmit data, which means that it is not limited by the speed of electrical signals. As a result, it has become the foundation of modern data transmission and is increasingly used in telecom, internet service provider and enterprise data center networks.\nAs an optical engineer, it is essential to have strong understanding of physics and be proficient in mathematics in order to be able to solve problems. Additionally, manual dexterity is important in order to be able to use scientific equipment such as spectrometers and wattmeters. It is also crucial to be able to collaborate and communicate effectively with others, as well as be familiar with optical tools such as Trace Pro and Zemax.\nWhere do optical engineers work\nDesigning and developing optical imaging devices and systems is the main focus of an optical imaging engineer. This can encompass a wide range of industries and applications, from agriculture and aerospace to lighting and textiles. In some cases, they may also work with observatories, maintaining and repairing telescopes and other astronomical instruments.\nBecoming adaptable, working as part of a team and taking orders easily are key skills for any successful employee. You may also have experience working with different types of equipment, which is another valuable asset in the workplace. Good communication skills are also essential in order to keep your colleagues and supervisors up-to-date on your progress and achievements.\nIs fiber optic certification worth it?\nCertification by the Electronics Technicians Association (ETA) is a substantial advantage for those pursuing careers in fiber optics. The benefits of attaining certification are nearly as varied as the potential career paths in the field, and include: Being recognized as the best. Increased job security.\nHigher earnings potential.\nImproved job satisfaction.\nRecognition by peers.\nFiber optics is a great way to transmit data, voice, and images because the light can travel great distances without losing any quality. Additionally, fiber optic cables are much thinner and more flexible than metal cables, so they can be easily routed through tight spaces.\nWhat is fiber optic training\nCommScope’s Fiber Optic Training Courses are a great way to learn about fiber optics and how to work with them. The courses cover everything from transmission and construction to planning and installation, and they’re perfect for anyone who wants to learn more about this growing field.\nFiber optic engineering is a demanding field that requires physical fitness, strength, and resilience. Candidates for this field need to be able to handle manual work and be able to work in a highly technical environment.\nFiber optics engineering is the process of designing and creating fiber optic cables and related equipment. Fiber optic cables are made of extremely thin strands of glass or other transparent materials that are used to transmit light signals over long distances. Fiber optic engineers design and create the cables and equipment necessary to make this happen.\nThere are many different ways to become a fiber optics engineer. One way is to earn a degree in electrical or computer engineering from an accredited college or university. There are also many specialized fiber optics programs available that can provide the necessary training. Many fiber optics engineers also have experience in other related fields such as telecommunications or networking.\nThe best way to learn about fiber optics engineering and build a career in this field is to get practical experience. Many fiber optics companies offer internships or cooperative education programs that allow students to gain hands-on experience. There are also many professional organizations that offer networking and job placement opportunities for fiber optics engineers.\nA career in fiber optics engineering can be very rewarding. You can work in a variety of industries and help to build and maintain the critical infrastructure that powers our modern world. If you are interested in a career in fiber optics engineering, there are a few things you should know. First, you will need to obtain a bachelor’s degree in engineering from an accredited university. Next, you will need to obtain a fiber optics engineer certification from an organization such as the Institute of Electrical and Electronics Engineers (IEEE). Finally, you will need to stay up to date on the latest fiber optic technologies and trends. With hard work and dedication, you can build a successful career in fiber optics engineering.","domain":"optical_engineering"}
{"url":"http://motionshop.com/pr/OMRON-OS32C-Safety-Laser-Scanner.shtml","date":"2019-06-17T05:35:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998376.42/warc/CC-MAIN-20190617043021-20190617065021-00118.warc.gz","language_score":0.7700701355934143,"token_count":277,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__12207069","lang":"en","text":"|For a Safer Work Place Use the Safety Laser Scanner From OMRON!\nHoffman Estates, IL -Motion Control Automation and Safety -Motion Control Components and Systems - Small size, less weight and low-power consumption are extending operation time of battery powered systems like automated guided vehicles (AGVs). The OMRON Safety laser scanner OS32C covers all these requirements in collision avoidance, presence and intrusion detection applications. Maintenance is made simple since diagnosis is clear having LED displays.\n- Type 3 Safety Laser Scanner complies with IEC61496-1/-3\n- 70 sets of safety zone and warning zone combinations\n- Safety zone up to 4m and warning zone(s) up to 15m.\n- 8 Individual Sector indicators and various LED for clear status indication\n- Reference boundary function prevents unauthorized change of scanner position\nTo Down Load OMRON Safety Laser Scanner OS32C Brochure CLICK HERE\nTo Down Load OMRON Safety Laser Scanner OS32C Data Sheet CLICK HERE\nFor additional information on OMRON Safety laser scanner OS32C CLICK HERE\nTo subscribe to OMRON Newsletters CLICK HERE\nTo contact OMRON about this or other industrial products CLICK HERE\nKEEP YOUR WORKPLACE SAFE! GET A ‘GOTCHA-STICK” CLICK HERE","domain":"optical_engineering"}
{"url":"https://www.peopleandtheircars.com/types-of-headlight-bulbs/","date":"2023-09-27T22:37:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510326.82/warc/CC-MAIN-20230927203115-20230927233115-00194.warc.gz","language_score":0.9517650604248047,"token_count":2660,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__240824054","lang":"en","text":"The technology behind headlights has continued to advance since the introduction of the first automobile in the 1880s. From kerosene lamps to dynamo power headlights, the technology has continued to advance due to the introduction of more sophisticated systems. Today, modern carmakers are manufacturing their vehicles with various types of headlight bulbs in a bid to improve efficiency.\nBut, to those that are totally uninitiated, the world of headlight bulbs can be a bit of a minefield, especially, when words such as Xenon, Halogen, and LED float around. Now, with so many lighting options available, car headlights can sometimes seem like an optional extra or an aesthetic addition.\nBut, when it comes to driving at night, headlights are an absolute necessity as they illuminate the road ahead of you and keep you safe when driving on busy roads. So, what are the different types of headlight bulbs? Well, that’s exactly what we’ll be discussing in this guide.\nTypes of Headlight Housings\nJust before we get to our main topic, we would like to discuss just a little bit about the different types of headlight housings. When you think of the headlight, what comes to mind is the actual bulb. But, rather than the bulbs, the housing on which the bulbs reside has a huge influence on your overall lighting experience.\nWhile the bulbs produce the actual light, the housing is responsible for dispersing the light to meet your lighting demands. Now, there are two main types of headlight housings available. These are the reflector and the projector headlights. Let’s examine each type in detail.\nThe reflector housing is the standard and most commonly used type of headlight housing by most vehicles. This headlight technology has stood since the invention of the electric headlight. This headlight housing consists of a steel bowl with mirrors placed all-around to help reflect light. At the center of the bowl is a holder that’s designed to hold the bulb.\nThe final piece of this headlight is a clear lens that rests outside to protect the bulb against damage. The older reflector housing had a sealed-beam design that made it entirely impossible to replace the bulb. So, in case the bulb was faulty, the only alternative was to replace the entire headlight.\nHowever, in the 1980s, the sealed-beam headlight technology was improved with much simpler yet efficient technology. The modification involved placing mirrors inside the headlight itself instead of sealing the bulbs inside mirrored individual bowls.\nSince the bulbs were placed directly on the headlight housing, it made it much easier to replace burnt-out bulbs. Some of the pros and cons of reflector housings include;\n- They’re cheap to manufacture\n- They’re smaller in size hence they take less space\n- The beam of light produced is weak\n- Light output is less intense\nThe projector headlight housing was first used in the 1980s where it was installed on luxurious vehicles. This technology is very similar to reflector housing in myriad ways. Just like the reflector housing, the projector housing uses a mirrored steel bowl that has a bulb mounted in the middle.\nThe assembly is pretty much the same as that of the reflector headlight as it reflects light to the outside. The only difference with the projector assembly is that it has a magnifying lens at the front of the headlight to increase the brightness of the beam.\nBesides the lens, projector housings have an inbuilt cutoff shield that angles the light beam produced downwards towards the road. By angling the light beam downwards, projector headlights are considered safer to use during the night, as they don’t blind oncoming motorists. Some of the pros and cons of these types of headlights include;\n- They’re brighter than reflector housings\n- Less likely to blind oncoming motorists\n- The beam of light projected is strong without any weak spots\n- Offer you the option to use HID bulbs\n- Feel quite odd in case you were used to reflector headlights\nWhat are the Different Types of Headlight Bulbs?\nThe reason why we discussed the different types of headlight housings is that the housing is the one responsible for disbursing the beam of light produced by the bulbs. Now that you’re well-aware of both the reflector and projector housings, we’ll now discuss the different types of headlight bulbs which are the Halogen, HID, and LED bulbs.\nBut, before we get to that, it’s good to note that bulbs are measured in three major ways. The first one is Lumens, which is used to measure the brightness/output of your bulbs. The second one is Kelvin, which measures the color temperature of a bulb while the third one is Hours, which is used to measure the lifespan. So, with that said, let’s now discuss the three main types of headlight bulbs.\nHalogen Headlight Bulb\nThe halogen bulb is the oldest headlight technology that came as an improvement of the old sealed-beam headlight. Although this technology is old, most modern vehicles have comfortably continued to use it due to its efficiency, low cost of production, and ease of replacing the bulbs.\nNow, similar to a normal household bulb, a halogen bulb consists of a tungsten filament that’s enclosed inside an air-tight tube pressurized with an inert gas. Just like its name, the tube is filled with halogen gas, which is a mixture of iodine and bromine.\nFor the halogen bulb to illuminate, an electric current is passed through the filament to heat the tungsten until it glows. Once it does, the halogen gas inside takes over to support the heating process to make it last longer. Besides, the halogen gas prevents the tungsten filament from burning up entirely and also blackening the tube.\nHalogen bulbs are mostly the cheapest option available. They’re cheap to manufacture and very easy to replace. They come in different variations that include the H4, H17, H18, H8, H9, and H11. The H4 bulbs have double-filaments while the H17 and H18 are smaller and brighter. H8, H9, and H11 are self-sealing halogen bulbs that are mostly used as foglights.\nBut, despite their massive contribution to the headlights department, halogen bulbs have a number of flaws. One, they have the lowest amount of lumens that is around 1000 lumens. They also have the lowest color temperature that ranges from 2,500K to 5,000K.\n- These bulbs are the cheapest to manufacture and the easiest to replace\n- The beam of light produced is brighter\n- Their small size allows them to take less space on the headlight unit\n- They have a slight yellowish hue that has a color temperature of around 3,500K. This prevents these bulbs from casting light further ahead\n- These bulbs produce a lot of heat when glowing. This makes them less energy efficient\n- These bulbs have a shorter lifespan as compared to Xenon and LED bulbs\nXenon/HID Headlight Bulbs\nHID bulbs use a completely different technology as compared to halogen bulbs. While halogen bulbs rely on a burning tungsten filament to glow, HID bulbs rely on an arc glowing between two electrodes. Halogen bulbs on their side contain a tube pressurized with a mixture of iodine and bromine gases.\nWhen it comes to HID bulbs, the tubes are pressurized with a mixture of xenon gas, argon gas, and vaporized metals. Now, how do HID bulbs work? When current is passed through the arc between the two electrodes, the heat melts the gases and the vaporized metals (mercury and metal halides) to form plasma. The resulting plasma glows in a shade of white-blue hue to produce bright light.\nThis bluish-white light is what HID bulbs are famous for and are hence called plasma headlights. Other names you’re likely to hear with these car headlight bulbs include Xenon headlights (due to the use of xenon gas) and High-Intensity Discharge (HID) headlights.\nWhen it comes to performance, HID bulbs are hailed for their typically higher lumen rating that ranges between 3000 to 5000 lumens. They also come in a wide range of color temperature that ranges from 3,500K to 8,000K.\nAlthough HID bulbs are less efficient when compared to LEDs, they’re a much better pick when compared to Halogen bulbs. What makes them even better is the availability of aftermarket HID conversion kits in case you need your former halogen headlights to accommodate HID bulbs.\nHowever, finding a road-legal conversion kit is very tricky. When buying a conversion kit, you must ensure it’s correctly E-marked. It must also be ECE R99 certified.\n- These bulbs were invented by Philips Company thus making them authentic\n- They use the plug-and-play technique making installation easy\n- They’re energy-efficient\n- They have a long life expectancy of around 10,000 hours\n- They’re 350-450% brighter than halogen bulbs\n- Their bluish-white hue (3,500K-8,000K) offers a greater range of illumination\n- Sometimes you’ll need an aftermarket conversion kit which is quite hard to procure\n- The strikingly bright hue produced can irritate oncoming traffic\n- They’re slower in reaching full brightness\nLED Headlight Bulbs\nThe last headlight technology we’ll be discussing in this guide is the LED technology. Since their discovery, LED bulbs have managed to overtake halogen and xenon bulbs but to some extent. The reason why I’ve said “to some extent” is that not all cars can manage to employ this technology.\nYou see, LED bulbs rely on completely different technology as compared to halogen and xenon bulbs. While halogen and xenon rely on heated filament and arc, LED bulbs rely on a very sophisticated technology known as electroluminescence.\nIn this technology, electricity is passed through a semiconductor to generate energy in form of photons. This energy appears in the form of tiny particles of light. To provide continuous illumination, this process is repeated many thousand times per sound to make the light stronger.\nAlthough this technology is expensive and very sophisticated, the benefits are incredibly high. First, less heat is generated in the process making LED bulbs energy efficient. Secondly, less heat means that more energy is converted into light thus making these bulbs extremely bright than both halogen and xenon bulbs.\nAnother massive benefit with LED bulbs is the high lumen they offer (of around 4,000 Lumens) and the high color temperature of around 6,000K. Since they’re mostly used with projector headlight housings, these bulbs have a higher light intensity as well as a high degree of contrast that mimics daylight.\nThe only downside with this technology is that it’s still new. Since most aftermarket LED headlight upgrades are not road legal, these bulbs are offered other duties inside the headlights such as working as signal lights and DRLs (Daytime Running Lights).\n- LEDs have the longest life expectancy of around 30,000 hours\n- They’re energy-efficient hence they don’t strain your battery\n- They can be customized to meet various aesthetic needs\n- Small and compact hence take less space within the headlight unit\n- They don’t irritate oncoming traffic\n- The light generated mimics daylight\n- Very expensive to produce\n- Very expensive to replace. Remember you have to replace the entire light unit\n- The majority of the aftermarket LED upgrades are not E marked hence not road legal\nAs you can see, the headlight technology has continued to flourish from the old oil-filled lamps to the newest LED bulbs. In fact, further technological advances are being evidenced with the likes of matrix and laser headlight technologies. The only problem with these newer technologies is that they’re still in their infancy meaning more tests will need to be conducted to guarantee driver safety.\nNow, regardless of the headlight technology, you employ, the most important thing is driver safety. Thankfully, this guide has discussed three headlight light bulbs that are the most common in most vehicles on our roads.\nSince each technology has its own share of positives and negatives, it’s highly recommended that you inspect each category keenly before making your final decision.","domain":"optical_engineering"}
{"url":"http://doras.dcu.ie/18031/","date":"2018-04-24T01:00:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946314.70/warc/CC-MAIN-20180424002843-20180424022843-00317.warc.gz","language_score":0.8961495161056519,"token_count":351,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__200860258","lang":"en","text":"Modelling and removal of distortions in images\nMallon, John (2005) Modelling and removal of distortions in images. PhD thesis, Dublin City University.\nFull text available as:\nThis thesis investigates the compensation and minimisation of distortions in images. Various forms of non-linear lens distortions are modelled and removed. Projective linear distortions are further minimised to give the closest ideal projection from erroneous cameras. Traditional camera calibration treats lens distortion simultaneously with camera pose and lens scaling factors. This often leads to complex algorithms with multi-image requirements, while alternative so called non-metric methods such as straight line techniques, lack ready usability and insufficient precision. Considering the calibration and compensation of non-idealitys separately, allows greater access to error free projections while considerably simplifying subsequent calibrations. The major contributions of this thesis are the precise calibration and removal of lens distortions and the minimisation of perspective distortions. A simple to use technique is proposed for the closed-form calibration of lens distortion based on a single view of a planar calibration chart. Detailed examinations show its accuracy and suitability for all levels of lens distortion. A related method is proposed for the removal of lateral chromatic aberrations in images. Distortion models and approximate inverses are derived to give precise accuracy over all distortion levels including fish-eye lenses. An analysis of calibration patterns is conducted to determine if the choice of pattern can influence the accuracy of the calibration. It is revealed that only specific patterns offer truly bias free control points. Distortion free images are optimally regenerated to minimise pixel scale distortions. This technique is further developed to uniquely minimise perspective distortions, with application to stereo rectification.\nArchive Staff Only: edit this record","domain":"optical_engineering"}
{"url":"http://fawoocanada.com/fawoocanada2011_006.htm","date":"2017-07-28T12:40:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500550967030.98/warc/CC-MAIN-20170728123647-20170728143647-00383.warc.gz","language_score":0.7458422780036926,"token_count":644,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__94653372","lang":"en","text":"Copyright ©2011. Fawoo Canada Inc.\n85 Royal Crest Court, Unit 1-2, Markham ON, Canada L3R 9X5\nUltra-Thin LED Light Panels\nGeneration GREEN LED Lighting Solutions\nLED Light Panel\nThe Fawoo LED light panel is designed to emit a bright, even output of light accross the entire surface of the fixture.\nEdge lit with highly efficient LEDs, the light travels from the edges of the panel along laser engraved channels etched into the optical\ngrade acrylic, to the centre of the panel.\nThis patented technology allows each panel to be brightly illuminated across its entire\nsurface without dark spots.\nAt a depth of only 8mm, the Fawoo LED light panel is the perfect solution for bright, even illumination\non any project.\nMaximum dimensions of each panel are 105\" long x 48\" wide. For larger applications, placing panels side by side will\ncreate a continuous light source. Custom shapes, letters, logos and cut-outs are all easy to achieve with the Fawoo LED light panels.\nOur precise cutting CNC machines are able to work to your exact specifications, providing creative solutions to your lighting, millwork,\nsignage and display projects.\nFeatures & Benefits\n- Customized Sizes & Shapes\n- High Brightness (2,000 - 10,000 lux)\n- Patented Heat Sink Technology to\nMaximize LED Lifespan (70,000 hrs)\n- Low Power Consumption\n- Energy Saving and Maintenance Free\nPlug-In Power Accessories\n12V DC, 1A, 12W\n12V DC, 3A, 36W\n12V DC, 5A, 60W, UL class 2 listed\n60W Plug&Play IR Dimmer\nSpider Cable Connectors:\nPL-2: 2 way spider connector cable\nPL-4: 4 way spider connector cable\n6 way short spider connector cable\nHardwire Power Accessories\n60W 12V Hardwore power adaptor.\nInput 110V AC~240V AC\n150W 12V Hardwire power adaptor\nInput 110V AC~240V AC, 277V AC\nIP65 Outdoor Rated\nToyota Gosei Japan\nCool White: 5300K\nNatural White: 3900K~4100K\nCustom Sizes & Shapes\nMinimum size: 1.5\"W x 3\"L x 5/16\"D\nMaximum size: 48\"W x 104\"L x 5/16\"D\nVoltage: 12V DC\nPower Consumption: 0.17~0.25Watts/LED\n*For detailed specifications please refer to \"LED light panel - Spec Sheet\"\ndimming options, please consult our technician for details\n(Click here for a RFQ form)\nLED LIGHT PANEL\nLED LIGHT BOX\nLED LIGHT BAR\nLED LIGHT BULB\nLED LIGHT STRIP\nNote: Data in this table are for reference only. Actual brightness and power consumption may differ for each panel configuration\nToll Free: 1-866-766-0509","domain":"optical_engineering"}
{"url":"http://oldeloohuis.com/depthof.html","date":"2018-03-19T18:12:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647044.86/warc/CC-MAIN-20180319175337-20180319195337-00775.warc.gz","language_score":0.9620501399040222,"token_count":722,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__162960438","lang":"en","text":"|Depth of Field|\nThis is about photo cameras, but not digital ones. It may work the same in digital cameras (especially the ones with exchangable lenses), but I'm not sure about that.\nFirst let's talk about aperture. The aperture of a\nlens is the diameter of the lens opening. Sort of. Aperture is\nindicated by a number. The lower the number, the more light can\nenter the lens, so the shorter the exposure time can be. Typical\nnumbers for apertures are: 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22,\nand higher. Mathematically inclined types (geeks) might see a\nsquare root of 2 pattern here, and that is no coincidence.\nAperture 5.6 lets twice the amount of light through the lense\ncompared to aperture 8. Something to do with diameter and area, I\nAnyhow, you would think that the more light the better (the perpetual problem with photography is that there is never enough light), so why have all these different apertures? Well, as always, there's a trade off. A bigger aperture (lower number) lets more light through, but limits the depth of field. This means that the distance over which objects will be in focus, will be limited. A small aperture (high number) will result in objects close to the lens being in focus, as well as object farther away from the lens. Often you want this. A big aperture (low number) will result in the object that you are focusing on being in focus, and then some objects close to that as well. Sometimes you want this. For example, when taking portrait pictures, you want the face of the person to be in focus, but not the wallpaper on the wall behind her. So far so good.\nIn the old days, when taking\npictures (with Single Lens Reflex cameras, that is), you would\nlook through the viewfinder (an thus through the lens), and you\nwould see the depth of field, since you had manually selected the\naperture. In other words, when you were composing the picture,\nyou had the same aperture as when you would press the shutter\nNot so in modern, electronic cameras. So, sometimes these modern cameras include a depth of filed preview button. Pressing this button closes the aperture to the value that you or the camera have selected, so that you can see what the depth of field will be. But why? Why not have the same aperture during composition as during exposure?\nWell, it isn't just you looking through the lens. It's also the camera itself. Modern auto-focusing cameras have all kinds of sensors that also peer through the lens. This in order to be able to do the autofocusing. Since most autofocusing SLRs use passive autofocusing (can't focus in the dark), the sensors need as much light as they can get. Most cameras have autofocus assist lights as well, in case it is too dark for them to focus. Anyway, bottom line is that the sensors need all that light, so therefore the lens is wide open until you press the button. Kind of obvious, once you realize it, but try to find that explained in a book on photography. I never realized it until I read The Camera by Ansel Adams. Oh well.\nPlease send comments to email@example.com.","domain":"optical_engineering"}
{"url":"https://www.vynzresearch.com/ict-media/image-sensors-market","date":"2022-05-19T09:05:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662526009.35/warc/CC-MAIN-20220519074217-20220519104217-00779.warc.gz","language_score":0.9230765104293823,"token_count":1255,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__324417952","lang":"en","text":"|Status : Published||Published On : Jan, 2021||Report Code : VRICT5003||Industry : ICT & Media||Available Format :||Page : 137|\nThe global image sensors market generated USD 17.6 billion revenue in 2020 and is projected to advance at a CAGR of 10.5% during the forecast period, mainly on the account of excessive adoption of image sensors technology among the automotive industry. Image sensor is used for converting an optical image into an electronic one and it is extensively being used in imaging devices and digital cameras that helps in converting imaging devices into a digital image.\nInsight by Technology\nBased on technology, the global image sensors market is categorized into charge-coupled device, complementary metal-oxide-semiconductor, and others, wherein complementary metal-oxide-semiconductor category accounted for largest share in 2020. The category is expected to lead throughout the forecast period due to its beneficial features such as lower power consumption and decreased the size of the system.\nInsight by Processing Type\nOn the basis of processing type, the global image sensors market is divided into 2D and 3D image sensors. Among the two categories, the 3D image sensors are expected to witness the faster growth during the forecast period owing to its extensive application in machine vision, ADAS and computer vision. Moreover, the utilization of artificial intelligence in smartphones is expected to further drive the growth of the 3D image sensors market. Furthermore, the increasing popularity of this segment is exaggerating the growth of the image sensors market across the globe.\nMoreover, the utilization of artificial intelligence in smartphones is expected to further drive the growth of the 3D image sensors market. Furthermore, the increasing popularity of this segment is exaggerating the growth of the global image sensors market.\nInsight by Spectrum\nBased on spectrum, the global image sensors market is categorized into visible and non-visible spectrum. Of both categories, the non-visible spectrum category is expected to witness faster growth during the forecast period since the cameras that are capable of functioning in the invisible spectrum find increased applicability in security and surveillance. Additionally, this segment is observing rampant investments from the key players such as Panasonic Corporation to enhance their product portfolio.\nFurther, the non-visible spectrum market is sub-categorized into x-ray light and infrared non-visible spectrum.\nInsight by Array Type\nBased on array type, the global image sensors market is divided into area and linear image sensor. Of both categories, the linear array category is expected to witness faster growth during the forecast period.\nInsight by Vertical\nOn the basis of vertical, the global image sensors market can be segmented into automotive, commercial, healthcare and life sciences, consumer electronics, aerospace, defense and homeland security, and industrial. Of all, the consumer electronics sector is expected to continue holding the largest share during the forecast period owing to the increasing upgradation in the CMOS technique that has significantly impacted the dissemination of image sensors into smart devices. Moreover, extensive demand for dual and secondary camera in smartphones is further strengthening the growth of the global image sensors market.\nFurther, the global image sensors market for automotive application is sub-categorized into forward-looking ADAS, camera mirror system, rear- and side-view, and in-cabin ADAS.\nFurther, the global image sensors market for healthcare and life sciences application is sub-categorized into endoscopy, x-ray imaging and others.\nFurther, the global image sensors market for consumer electronics application is sub-categorized into desktops and laptops, commercial drone, photography and videography, wearables, smartphones and tablets, service robots, commercial copier and scanner and residential surveillance.\nFurther, the global image sensors market for industrial application is sub-categorized into industrial surveillance and monitoring, machine vision and robotic vision.\nConstant progressions and innovations in the CMOS imaging technology, fabrication and design are the key trends observed in the image sensors market. Current improvements in the CMOS technology have considerably upgraded signal-to-noise ratio (SNR) intensities in machine visualization presentations at higher speed, and providing cost-effectiveness, improved performance and functionality to the CCD technology.\nGlobal image sensors market has been driven by several key factors, predominantly increasing demand for dual camera in smartphone and tablets along with miniaturization. It has been observed that CMOS based technology is extensively being utilized in dual-camera smartphones that leads to increasing popularity of these phones among various gen-next photographers. Moreover, excessive demand for improved medical imaging systems is other factor pertaining towards the growth of the image sensors market. These factors are thereby bolstering the growth of the image sensors market across the globe at a rapid pace.\nGlobally industry players are leveraging market growth through new product development, mergers & acquisitions, partnerships, increased investments and technological upgradation that is supporting the image sensors market growth across the globe.\nGLOBAL IMAGE SENSORS MARKET, BY REGION (2020)\nAsia-Pacific has been one of the largest consumers of image sensors during the forecast period. The growth of image sensors market in this region is due to increasing industrialization and research and development activities. Additionally, increasing requirement of safety-related directives in the automotive domain is increasing due to large number of accidents cases.\nExtensive accident cases are thereby instilling the requirement for ADAS (advanced driver assistance system) in the automobile domain with the assimilation of progressive image sensing proficiencies acting as a major market driver, and further accentuating the growth of image sensors market in this region.\nSome of the key players operating in the global image sensors market are Sony Corporation, Samsung Electronics Co. Ltd., OmniVision Technologies Inc., Panasonic Corporation, Canon Inc., Toshiba Corporation, SK Hynix Inc., STMicroelectronics N.V., ON Semiconductor Corporation and Hamamatsu Photonics K.K.\nSource: VynZ Research","domain":"optical_engineering"}
{"url":"https://willinglamps.com/index.php?route=product/product&product_id=182","date":"2024-04-22T06:40:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00644.warc.gz","language_score":0.9257729053497314,"token_count":770,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__124913763","lang":"en","text":"Jym-3000 UV cleaning equipment\nLight cleaning equipment\nMaterial surface cleaning\nMaterial surface modification\nUV oxidation reaction\nProduct Description: using short wavelength UV surface cleaning and surface modification technology, using clean high-energy UV light source, the material can be treated to obtain extremely clean surface and strong surface adhesion. The basic reaction of modification is the oxidation reaction caused by UV. After UV irradiation on the solid surface, the pollutants on the surface are oxidized, then decomposed into volatile substances such as CO2 and H2O, and finally evaporated. Moreover, hydrophilic atomic groups such as Oh, COO, Co, COOH and so on are formed on the surface, and the surface adhesion of the modified surface is improved by leaps and bounds.\nSome materials used in general industries or high-tech fields have very high performance and are very friendly to the environment, but the continuity and printability of these materials are generally very poor. The short wavelength ultraviolet (UV) surface cleaning and surface modification technology provided by the company can obtain extremely clean surface and strong surface adhesion after the above materials are treated with clean high-energy UV light source.\nThe basic reaction of modification is the oxidation reaction caused by UV. After UV irradiation on the solid surface, the pollutants on the surface are oxidized, then decomposed into volatile substances such as CO2 and H2O, and finally evaporated. Moreover, hydrophilic atomic groups such as Oh, COO, Co, COOH and so on are formed on the surface, and the surface adhesion of the modified surface is improved by leaps and bounds.\nThe progress of UV light source technology ensures that UV / O3 surface modification technology gives full play to its outstanding advantages. UV / O3 surface modification technology has been widely used in solid surface treatment because of its high cleanliness and surface adhesion.\nFeatures of UV cleaning:\nThe treatment in the atmosphere is simple, convenient, environmental friendly, without secondary pollution, without heating, liquid medicine and other treatment.\nThe cleanliness is very high, below the single molecular layer, which can obtain unimaginable continuity of previous treatment methods.\nThe unique ultra-high output and short wavelength ultraviolet light source in China can give full play to the powerful processing capacity and significantly improve the production efficiency with only a short time (second unit) of irradiation.\nIt is effective for most plastic products and has wide applicability.\nLarge consumption of liquid medicine and heat energy can be avoided, and the operation cost is low.\nApplication scope of UV cleaning technology:\nThe optical cleaning method is most suitable for the production of liquid crystal display devices, semiconductor silicon chips, integrated circuits, high-precision printed circuit boards, optical devices, quartz crystals, sealing technology, metal materials with oxide film, etc.\nMain materials: ITO glass, optical glass, chrome plate, mask plate, polished quartz crystal, silicon wafer and metal with oxide film, etc.\nCan remove dirt: organic dirt, human body sebum, cosmetics grease, resin additives and polyimide, paraffin, rosin, lubricating oil, residual photoresist, etc.\nThis UV light source has the characteristics of UV modification (UV surface quality change) in LCD technology. At present, it is mainly used in film processing technology in the production process of LCD STN, which is very effective for improving the tight connection between film and film, such as ITO film and photoreceptor film, top coating and PI coating, etc. In addition, in the research department, it can also be used for UV modified plastic material products and nanotechnology research. The chemical reaction of the products after UV irradiation changes the surface properties of the products.","domain":"optical_engineering"}
{"url":"http://blog.lofar-uk.org/2010/02/","date":"2024-02-29T21:52:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474853.43/warc/CC-MAIN-20240229202522-20240229232522-00394.warc.gz","language_score":0.9160720109939575,"token_count":404,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__22901634","lang":"en","text":"Monday, February 8, 2010\nThe Daily Image today over at ASTRON is this wonderful high resolution radio image of the extragalactic source 3C61.1.\nThe image compares the LOFAR result at 173 MHz (1.7m), with images from other recent radio surveys. Most directly comparable are the results at low frequencies from the VLSS survey (which used the Very Large Array in New Mexico) and the WENSS survey (which used the Westerbork Synthesis Telecope in the Netherlands).\nThe VLA image at 1.5 GHz (20cm) comes from radio waves 10 times higher in frequency (or 10 times shorter in wavelength) than the LOFAR image, so the comparable resolution of these two images is a really impressive feat. The resolution (or sharpness) of an image is set by both to the size of the telescope (or in this case array of telescopes) and the wavelength of the light (or radio waves). The bigger the difference in size between your telescope and the wavelength you are detecting, then better the resolution you can get. This is why in radio astronomy, where we have very long wavelengths to deal with we must build very massive arrays to get anything like the resolution a \"classic\" telescope can achieve for optical light. So the fact that the resolution of the LOFAR image and the VLA image look similar says immediately that the LOFAR array must be spread 10 times wider than the VLA. Pretty impressive!\nThis result which used 20 LOFAR HBA (high band antenna) stations (16 in the core, and 4 remote stations) for a 60 hour observation is a wonderful teaser of the amazing images we can expect when the full LOFAR array is functioning.\nAnd remember, the LOFAR-UK station at Chilbolton will add a lot to the resolution which can be achieved by LOFAR, being one of the most distant stations from the Dutch core.","domain":"optical_engineering"}
{"url":"https://sheilphoto.com/how-to-make-dioptric-correction-in-camera/","date":"2024-04-23T04:26:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818464.67/warc/CC-MAIN-20240423033153-20240423063153-00149.warc.gz","language_score":0.9307962656021118,"token_count":297,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__32840886","lang":"en","text":"How to make Dioptric Correction in camera\nDioptric correction on a camera is the correction of the viewfinder focusing. In simpler words, it is matching the power of your glasses (if you have one) with the viewfinder. Once you do the correct adjustment, you will be able to see things clearly through the viewfinder without using your spectacles. Sounds nice ? Well, it is equally easy as well !! It is just that many are not aware of this simple but very useful utility in almost all DSLR camera.\nThe procedure :\n1. Set your camera on a flat surface, easy enough for you to see through the viewfinder.\n2. Place an object at short focusing distance in front of the camera.\n(It is good idea to use something that has fine text that you CAN NOT read without your spectacles.)\n3. Use the camera AUTO FOCUS function to set exact focus on the subject.\n4. Remove your glasses and see through the viewfinder.\nYou will see the subject unfocussed and blurry. (Depending on the power of your glasses.)\n5. Now turn the DIOPTRIC correction wheel (small wheel located next to the viewfinder with and – signs on it.) till you get clear vision of the subject.\nWell, that is it…. you have adjusted the camera viewfinder as if to replace your glasses while shooting !!!\nEnjoy the thrill of shooting without glasses.","domain":"optical_engineering"}
{"url":"http://zionamuz582.jiliblog.com/5147427/eye-surgery","date":"2018-05-25T08:29:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867055.20/warc/CC-MAIN-20180525082822-20180525102822-00533.warc.gz","language_score":0.9558752775192261,"token_count":1319,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__208400416","lang":"en","text":"Eye Surgical treatment has actually ended up being a mainstream approach of vision modification, and also this write-up will discuss the benefits and also disadvantages of three various methods being offered to the clinical customer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and also is an eye medical system which permanently remedies vision by removing a thin layer of the cornea. This treatment works best on people with moderate to high levels of myopia (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism connected with myopia, and also that have thick corneas. It is the most widely known medical vision modification approach.\nPeople with typical eye sight see things plainly due to the fact that pictures are brought right into a right centerpiece by the cornea as well as lens of the eye. Ideally, the cornea's curvature is equally matched to its length in a typical eye. Individuals with astigmatism, nearsightedness or hyperopia have actually off-and-on shaped corneas, so the items seen are not concentrated effectively. LASIK changes corneal form by precise removal of corneal cells, and by doing so remedies the eyes' focusing power.\nThere are, nonetheless, dangers to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this occurs, it is typically due to the fact that the patient had a pre-existing problem which must have precluded the surgical treatment to begin with, such as pregnancy, cataracts, joint inflammation, diabetes, glaucoma, or lupus. People with huge pupils are also inadequate prospects for LASIK. Dry eye syndrome will certainly be exacerbated by this procedure.\nA couple of patients whine that they completely see \"ghost\" pictures, have actually blurred vision, lessened comparison as well as negative night vision. When LASIK wased initially introduced, 5% of patients had post-operative grievances; however, refinements in the procedure have actually triggered this price to drop to much less than 1% if LASIK is executed by skilled experts and people are correctly evaluated before surgery. If problems do happen, they can usually be resoved by a retreatment.\nFDA has actually approved LASIK laser eye surgical treatment given that 1998. While there are a great deal of completely satisfied people, there are however no long-term researches about its impacts. Recognize the constraints and the dangers of LASIK eye surgical procedure before you sigh for the treatment.\nThough less popular, these tiny implants could boost vision in patients with mild to modest nearsightedness without the threat of irreversible eye damages integral in the cells removal strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to think a flatter form. Though a little much less specific than LASIK, they are removeable and also replaceable, so if the individual has an unforeseen over- or under-correction, the implant could be eliminated as well as another of a different size inserted to get the desired improvement. The implants are located at the edge of the cornea, so the central visual area is entirely intact as well as intact, as well as the stamina of the cornea is undiminished, making it a far better option for pilots and those who engage in contact sports where eye injury here is a possibility.\nIntacs disagree for severe myopia as well as greater than small astigmatism (1.00 diopters), as the cornea could just be stretched thus far. If the Intacs are eliminated, vision returns to its preoperative degree. Apart from vision adjustment, Intacs are also used to treat keratoconus.\nIntacs are FDA approved and also One Decade research studies have actually disclosed no major issues with Intacs and also few individual grievances; however, because the treatment takes a lot more training than LASIK, there are fewer eye surgical procedure centers offering it. Nonetheless, the Intacs website provides a listing of specialists in each state, as well a couple of in Canada, Europe and Mexico.\nDue to the fact that many individuals do not intend to take the chance additional reading of LASIK as well as Intacs can not help those with extreme vision issues, intraocular lens implants (IOL) are a new alternative authorized by the FDA in 2004 to fix moderate to severe nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the sort of lens dental implant used to restore vision adhering to cataract eye surgical treatment.\nThe brand-new IOL, called the Artisan, is planned for only people who have 2.5 diopters or much less of astigmatism.\nThe artificial lens does not change the natural lens, yet is put before it. The primary problem located with the implant was the steady loss of endothelial cells in the corneas of patients that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are necessary in maintaining the cornea clear. A three-year study revealed a consistent constant loss of endothelial cells of 1.8 percent a year. At this moment, no one can forecast whether this loss will proceed at the exact same price indefinitely, and even its influence on corneal function.\nTo lessen long-term effects of the gadget on the corneal endothelium, the FDA is calling for that the brand-new lenses be classified to specify that they ought to just be dental implanted in patients whose corneal endothelial cells are thick enough to endure small cell loss.\nExtra serious problems were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is requiring Ophtec to conduct a five-year follow-up survey of its implant individuals to much better analyze the post-surgical occurrence of cataract growth, retinal detachment and other ophthalmic diseases.\nThe Artisan lens is intended to be a long-term implant.Though it can be eliminated surgically, vision might not always return to exactly what it was prior to getting the lens. Because it does not affect astigmatism, clients with this issue may still need glasses.","domain":"optical_engineering"}
{"url":"https://www.clearwaterlights.com/products/krista-triumph-tiger-900","date":"2022-10-04T13:27:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337504.21/warc/CC-MAIN-20221004121345-20221004151345-00231.warc.gz","language_score":0.8740220665931702,"token_count":248,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__33183600","lang":"en","text":"World’s most advanced LED auxiliary light – 8-degree pencil beam, fully dimmable, and multiple mounting options.\n- 36 watts with 3,000+ lumens and only 3-amp power draw at max output per light\n- 3.7” diameter housing\n- 3 LED optics with an 8-degree spot beam pattern focused down the road for long-distance visibility, perfect for highway driving\n- Dimmable using included rheostat\n- Ability to turn on/off via switch\n- Variety of functions including*:\n- High Beam Mode – lights go full 100% with the bike’s high beam\n- Horn Activation Mode – lights go full 100% when horn is activated\n- Your bike is sure to be noticed during the day and will brightly illuminate the road ahead at night\n*Some bikes with LED headlights will not have the high beam feature. Horn option may need additional parts.\n36 watts consumption each (on high).\n3000+ lumens each.\nIncludes wiring harness.\nCustom tooled optics.","domain":"optical_engineering"}
{"url":"http://opt-e.com/update-to-paper-presented-august-2016-at-spies-optics-photonics-conference/","date":"2018-02-21T01:39:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813187.88/warc/CC-MAIN-20180221004620-20180221024620-00037.warc.gz","language_score":0.9286604523658752,"token_count":248,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__69470435","lang":"en","text":"I presented a paper on the W2-AM at SPIE’s Optics + Photonics conference in August 2016. The paper was prepared using a mock-up instrument. The spots were good looking in the paper, but there was some debris on the reticle and in the image. Since then we’ve shipped some units with a red light source and also another with a green light source.\nThe production instruments have been cleaned up compared to the mock-up used for the paper. This first image is the full frame image from the CC (center-of-curvature) of a silicon nitride tooling ball taken with a Olympus 10x, NA 0.25 PLAN objective. The image is clean.\nThis next image is a magnified view of the central part of the CC image above.\nFinally, silicon nitride tooling balls are nice, but a surface image looks a little different than a CC image. The following picture is of the surface of the same silicon nitride tooling ball used to create the images above. The spots are part of the surface of the ball.\nFor completeness, here’s a magnified portion of the tooling ball surface image.","domain":"optical_engineering"}
{"url":"http://redreviewz.com/post.php?RevID=9MU3lX48MGHQg3Pz&details","date":"2020-06-02T08:48:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347423915.42/warc/CC-MAIN-20200602064854-20200602094854-00233.warc.gz","language_score":0.9727064371109009,"token_count":290,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__165267667","lang":"en","text":"VicTsing Lens Pack for Smartphones! Cool!\nDecember 2017 |\nPhones and Tablets\nThis awesome little lens pack turns your smartphone into a macro camera and also a super wide angle beast! I honestly didn't have much hope for it as I've tried kits like these in the past and they were less than impressive. This one however was actually pretty good. The quality of the lenses are better than expected with metal bezels and real glass lenses. The quality of the images produced were excellent! Both wide and macro were crystal clear. If I haven't uploaded any wide shots I will soon!\nThe kit comes in a hard protective case which has a carabiner so you can attach it to your camera bag etc for easy transport. Inside there are three lenses (although two are screwed together so it looks like only two). There is also a cleaning cloth and instructions.\nFor wide angle shots you use the wide angle lens (Sherlock Holmes here!).\nFor macro you can use the 12x lens or coupled with the extra lens it will take it up to 24x magnification. This extra lens bit also has a clear light diffuser attached so that even if your in touching distance from your subject, light will still get in to make sure you can see it through the lens - brilliant!\nThumbs up from me!\nPosted by Redz\nPosted on 18/10/2018 at 08:51pm","domain":"optical_engineering"}
{"url":"https://www.laserscanning-europe.com/en/category/trimble/trimble-vx-spatial-station","date":"2019-07-20T03:09:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195526408.59/warc/CC-MAIN-20190720024812-20190720050812-00007.warc.gz","language_score":0.8994831442832947,"token_count":136,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__218784805","lang":"en","text":"The Trimble VX Spatial Station of the company Trimble Navigation Limited combines 3D laser scanning, imaging and surveying in one device and, thus, it can be used flexibly. The scanning system operates using the time-of-flight measurement method. Regarding scanning, the Trimble VX Spatial Station achieves a range of 1m (39.37 in) to 2,500m (98,425.2 in) and a measuring speed of up to 15 points/second. Due to the live video streaming, the device provides the possibility to control your tasks from the controller. The camera has a resolution of 2,048 x 1,536 pixels.","domain":"optical_engineering"}
{"url":"https://aditess.com/main/fixed-wing-aircraft/","date":"2023-10-01T08:16:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510810.46/warc/CC-MAIN-20231001073649-20231001103649-00709.warc.gz","language_score":0.8667266368865967,"token_count":244,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__141022264","lang":"en","text":"Your fixed wing aircraft gives your customers the opportunity to maintain a long standoff distance from an area or target of interest. With 30x optical zoom, your platform can achieve greater detection ranges and can identify more information on an object or scene, whilst remaining out of sight from the opposition. Enhanced zoom capability provides more safety for the operators on-board. UAV Vision gimbals can also achieve digital or optical IR zoom (depending on the system). The CM202 can give up to 13x IR optical zoom to provide you with enhanced situational awareness at night.\nTo help you keep within your budget, all UAV Visition gimbals are low in SWaP-C, so you can benefit from a high-performance system without breaking the bank. Our gimbals are customisable so you can choose the best sensors, hardware and software to meet the exact requirements of your mission.\nCapabilities include object tracking, GEO-Lock for precise geographical information on your target, real time video stabilisation, on board video recording and navigation information.\nWant to know what fixed wing aircraft UAV Vision gimbals have been integrated into? Contact us at firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"http://lp-net.info/products/moir-mirror/","date":"2019-09-21T09:01:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514574377.11/warc/CC-MAIN-20190921084226-20190921110226-00049.warc.gz","language_score":0.9520049691200256,"token_count":141,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__60204873","lang":"en","text":"Moiré Mirror is a minimalist design created by Netherlands-based designer Hayo Gebauer. The Moiré Mirror is both: reflector and lightsource. Hidden behind the one-way-mirror is a lamp, which becomes visible, once you grab a second disc hidden behind the glass, which can be rotated. The backside of the mirror and the second disc have a lightproof pattern added to them, which darken the mirror in a certain position. With this approach of overlaying it is not only possible to shade the light, but also to control the optical effect, which occurs once you rotate the two patterns, and the amount of light, which travels through the mirror.","domain":"optical_engineering"}
{"url":"https://polarisnewsblog.com/optical-coatings-market-a-dynamic-innovation-for-mirrors-and-camera-lenses/","date":"2023-11-29T04:57:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100056.38/warc/CC-MAIN-20231129041834-20231129071834-00084.warc.gz","language_score":0.9213294386863708,"token_count":837,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__129386850","lang":"en","text":"An optical coating is a thin layer of a substance that generates interlinkage and reaction between a particular visual element, such as a lens, mirror, and light. Acknowledging how light undergoes transparent media is important to comprehend how optical coating functions. The layers utilized in this technology impact how the optic passes on light and reflects it. The optical coatings market size is expanding as this technology is handy for making spectacles for people whose eyes are reactive to light and for making camera lenses. The materials utilized for this kind of coating differ with their usage. Instances of materials utilized for coating involve infrequent earth materials, oxides, and metals. The thickness decides the efficacy of optics technology, the aggregate of layers utilized, and the refractive index variation.\nThe global optical coatings market was valued at USD 12.75 billion in 2022 and is expected to grow at USD 28.40 billion with a CAGR of 8.4% during the forecast period 2032.\nWhere is Optical Coating Technology Used?\nMirrors and camera lenses are made up with the help of this invention. Camera lenses use a dielectric coating apparatus that provides an anti-reflection coating characteristics. The coatings utilized carry a blend of calcium fluoride, magnesium fluoride, and other materials of similar composition. These materials are acceptable as they permit the user to select the fitting light texture entering the camera. One crucial utilization of these glasses is that they have a dazzling feature that circumvents light reach while walking in the sun.\nTypes of Optic Coatings\n- Anti-reflection coatings: Also known as antiglare coatings, is utilized on the facet of lenses and alternate optical elements to cut back reflection. When reflection is decreased, it enhances superior imaging, and there is minimum light deprivation due to reflection. The optical coatings market sales are soaring as equipment such as binoculars, cameras, microscopes, and telescopes can use anti-reflective coatings. This is because depletion in light reflection enhances image dissimilarity as stray light is detached.\n- High reflective coatings: They are utilized to lessen light deprivation when reflecting lasers and alternate origins of light. Thus, technicians endorse that laser machines have extremely reflective coating material as the dispersal of laser beams can cause harm if the laser is tapered directly at a patient, for instance, in the case of laser eye surgery. In a nutshell, HR coatings are important for the efficacy of laser machines to sanction less laser power utilized during an application.\nOptic Coatings Technologies\n- Advanced plasma sputtering: The result of plasma sputtering is even, opaque, and hard coatings that offer more secure optical characteristics than ion-assisted electron-bean evaporation deposition.\n- Ion-assisted electron bean evaporative deposition: A coating process known as evaporative deposition includes shelling and evaporating source substances with an electronic gun in a compact room.\nThe market is growing due to the escalating usage of optical coatings in semiconductors and alternate industries such as excess temperature lamp tubing, telecommunication, optics, and microelectronics. As per the Semiconductor Industry Association, the worldwide semiconductor sector sales were $40.0 billion in April 2023, a 0.3% increase over the March 2023 aggregate of $39.8 billion and a 21.6% reduction over the April 2022 aggregate of $50.9 billion. The escalating semiconductor industry has escalated the demand for optical coatings.\nNorth America: This region held the largest share due to innovation and technological enhancement. The US government disburses tremendously on R&D programs covering a broad gamut of industries involving technology.\nAsia Pacific: the rise of surfacing countries has escalated the requirement for healthcare services, which has escalated the usage of advanced optical systems.\nWith the progression of technology, the global demand for optical coating is predicted to grow. This is due to the continuous usage of electronics and semiconductors. Fiber optics has hitherto overhauled the global market. In the optical coatings market, it is time to welcome this contemporary technology because of its multitude of advantages.","domain":"optical_engineering"}
{"url":"https://m.myluminette.com/en","date":"2020-05-26T00:18:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347390437.8/warc/CC-MAIN-20200525223929-20200526013929-00457.warc.gz","language_score":0.8614685535430908,"token_count":381,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__115832302","lang":"en","text":"Luminette 3 !\nGET £20 OFF\nwith the code \"SALES20\"\nNew featuresof Luminette 3\n- 8 mm\nIs Luminette right for me ?\nI have winter\nI struggle with\nI wake up at night\nand can't sleep anymore.\nI work at night\nand I have trouble sleeping.\nI travel a lot\nand I find jet lag very tiring.\nInnovative light therapy\nfor optimal comfort\nLuminette® works thanks to an innovative optical technology: a light beam enters your eye naturally just like the sun, without dazzling your eyes or obscuring your vision.\nLuminette glasses emit blue-enriched white light wavelengths peaked at 468 nm. It has been scientifically proven that wavelength of blue light is the most effective at simulating sunlight. It will trigger your body’s positive response to simulated sunlight. Luminette LED’s have been specifically selected to avoid wavelength of blue light below 450 nm ; these LED’s emit only beneficial light. Note that Luminette is deemed \"eye-safe\" according to international standard CEI 62471.\nSee what people think about Luminette\nA safe, certified& clinically proven solution !\nLuminette comply with European CE marking.\nLuminette is compliant to International Standard IEC 62471, which classifies it as eye-safe.\nClinical studies have proven the effectiveness of Luminette in fighting mood disorders and improving alertness, reaction time and sleep patterns under adverse conditions\nFor a more effective experience\nMyLuminette is a free chronotherapy application. It generates biological clock rephasing programmes based on algorithms. Developed by the chronotherapist Roland Pec, these programmes include all known chronobiological tools: light exposure, avoidance of light, taking melatonin, sleep, etc.","domain":"optical_engineering"}
{"url":"http://www.plasmaguard.com/","date":"2017-10-21T15:59:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187824820.28/warc/CC-MAIN-20171021152723-20171021172723-00569.warc.gz","language_score":0.8803605437278748,"token_count":278,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__278768698","lang":"en","text":"With the average plasma display costing around\n$10,000, you need the clearest, sharpest display for your\ninvestment. Each OptiClear Plasma Guard is engineered to the\nspecific needs of our customers.\nCommon needs are for reducing glare and reflection\nfrom overhead lighting, protecting against UV radiation in\noutdoor environments, and improving screen contrast.\nOptiClear has been the standard choice for enhancing\ncomputer displays since 1985. Allow us to engineer a solution\nfor you. Indoor and outdoor plasma displays suddenly appear\nin true brilliance. UV light no longer threatens the sensitive\ntechnology. Ambient light is scattered. Glare and reflection\ncan be reduced by over 99%.\nEvery plasma display glare and reflection filter\nimproves the viewing experience. Different Environments call\nfor unique solutions. Our technology offering today includes\nanti-glare and anti-reflection solutions for systems enclosures,\nshipboard instrumentation, conductive coated glass for touch\nscreens, and anti-reflective glass for LCD and plasma displays.\nGet in touch with us and get in touch with experienced solutions\nfor your plasma screens.\nThe Plasma Guard is available in tempered\nglass, the strongest glass material available. Tempered glass\nis high impact, and does not shatter dangerously like regular\nglass. Your plasma screen can be protected against loss and","domain":"optical_engineering"}
{"url":"https://www.leawo.com/knowledge/2d-to-3d-technology.html","date":"2023-12-08T02:33:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00596.warc.gz","language_score":0.9473866820335388,"token_count":986,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__35417255","lang":"en","text":"3D means three-dimensional, i.e. something that has width, height and depth (length). Our physical environment is three-dimensional and we move around in 3D every day.\nHumans are able to perceive the spatial relationship between objects just by looking at them because we have 3D perception, also known as depth perception. As we look around, the retina in each eye forms a two-dimensional image of our surroundings and our brain processes these two images into a 3D visual experience.\nHowever it’s important to note that having vision in both eyes (stereoscopic or binocular vision) is not the only way to see in 3D. People who can only see with one eye (monocular vision) can still perceive the world in 3D, and may even be unaware that they are stereo blind. They are simply missing one of the tools to see in 3D, so they rely on others without thinking about it.\nHere are some of the tools with which humans use for depth perception:\n- Stereoscopic vision: Two eyes provide slightly separate images; closer objects appear more separated than distant ones.\n- Accommodation: As you focus on a close or distant object, the lenses in your eyes physically change shape, providing a clue as to how far away the object is.\n- Parallax: As your head moves from side to side, closer objects appear to move more than distant ones.\n- Size familiarity: If you know the approximate size of an object, you can tell approximately how far away it is based on how big it looks. Similarly, if you know that two objects are a similar size to each other but one appears larger than the other, you will assume the larger object is closer.\n- Aerial perspective: Because light is scattered randomly by air, distant objects appear to have less contrast than nearby objects. Distant objects also appear less color-saturated and have a slight color tinge similar to the background (usually blue).\nIn order to represent the 3D world on a flat (2D) surface such as a display screen, it’s desirable to simulate as many of these perception tools as possible. Although there is currently no way to simulate all of them at the same time, video does use a combination. For example, aerial perspective and size familiarity are automatically captured by the video camera. In CGI scenes, aerial perspective must be added so that distant objects appear less clearly (this is called distance fog).\nOf course the addition of stereoscopic images (a separate image for each eye) is a significant improvement—so much so that most people think of stereoscopic films as being 3D, and all others as being 2D.\n2D Film & Video\nA traditional 2-D video image has width and height but technically it has no depth, i.e. everything in the image is presented at the same distance from the viewer. Still, the viewer does perceive the image as three-dimensional by subconsciously using the techniques listed above—much the same as how stereo-blind people perceive the real world.\n3D Film & Video\nA 3D or 3-D (three-dimensional) film or S3D (stereoscopic 3D) film is a motion picture that enhances the illusion of depth perception. Derived from stereoscopic photography, a regular motion picture camera system is used to record the images as seen from two perspectives (or computer-generated imagery generates the two perspectives in post-production), and special projection hardware and/or eyewear are used to provide the illusion of depth when viewing the film. 3D films are not limited to feature film theatrical releases; television broadcasts and direct-to-video films have also incorporated similar methods, especially since 3D television and Blu-ray 3D.\nCommon display methods include:\n- Anaglyphic processing (red/cyan glasses): The original 3D system, now largely out of favor.\n- Polarized light system (polarized filter glasses): The most common new system for cinemas.\n- Active shutter system (LCD shutter glasses): The most likely standard for the first generation of 3D televisions and other displays.\n2D to 3D conversion\nIn the case of 2D CGI animated films that were generated from 3D models, it is possible to return to the models to generate a 3D version.\nFor all other 2D films, different techniques must be employed. For example, for the 3D re-release of the 1993 film The Nightmare Before Christmas, Walt Disney Pictures scanned each original frame and manipulated them to produce left-eye and right-eye versions. Dozens of films have now been converted from 2D to 3D. There are several approaches used for 2D to 3D conversion, most notably depth-based methods.","domain":"optical_engineering"}
{"url":"https://guysandgoodhealth.com/2021/12/03/quantum-brains-sensors-could-spot-dementia/2/","date":"2023-06-09T01:07:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655244.74/warc/CC-MAIN-20230609000217-20230609030217-00252.warc.gz","language_score":0.9459152817726135,"token_count":461,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__93797815","lang":"en","text":"“This could be really significant for doctors and patients concerned with the development of brain disorders.”\nThese quantum sensors are believed to be much more accurate than either EEG or fMRI scanners, due in part to the fact that the sensors can get closer to the skull. The closer proximity of the sensors to the brain can not only improve the spatial, but also the temporal resolution of the results. This double improvement of both time and space accuracy is highly significant as it means brain signals can be tracked in ways that are inaccessible to other types of sensors.\n“It’s the quantum technology which makes these sensors so accurate”, explains Professor Peter Kruger, who leads the Quantum Systems and Devices lab at the University of Sussex. He adds:\n“The sensors contain a gas of rubidium atoms. Beams of laser light are shone at the atoms, and when the atoms experience changes in a magnetic field, they emit light differently. Fluctuations in the emitted light reveal changes in the magnetic activity in the brain. The quantum sensors are accurate within milliseconds, and within several millimetres.”\nThe technology behind the scanners is called magnetoencephalography (MEG). Combining MEG tech with these new quantum sensors has developed a non-invasive way to probe activity in the brain. Unlike existing brain scanners – which send a signal into the brain and record what come back – MEG passively measures what is occurring inside from the outside, eliminating the health risks currently associated for some patients with invasive scanners.\nCurrently MEG scanners are expensive and bulky, making them challenging to use in clinical practice. This development of quantum sensor technology could be crucial for transferring the scanners from highly controlled laboratory environments into real-world clinical settings.\n“It’s our hope with this development” adds Gialopsou. “That in discovering this enhanced function of quantum brain scanners the door is opened to further developments that could bring about a quantum revolution in neuroscience. This matters because, although the scanners are in their infancy, it has implications for future developments that could lead to crucial early diagnosis of brain diseases, such as ALS, MS and even Alzheimer’s. That’s what motivates us as a team.”","domain":"optical_engineering"}
{"url":"http://www.outdoorworlddirect.co.uk/kampa-dazzle-20-3-tent-light-with-remote.html","date":"2017-04-25T10:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120338.97/warc/CC-MAIN-20170423031200-00060-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8423479795455933,"token_count":166,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__21492445","lang":"en","text":"The Kampa Dazzle is an LED light with bulbs providing a super bright light source, ultra low power consumption with the added benefit that they never need to be replaced.\n- Remote control\n- Three modes:\n1 - 3 LED night light 2 - 20 LED tent light 3 - 23 LED tent light\n- Requires 4 x ‘AA’ cell batteries\n- Up to 20 hours of light from a set of batteries (23 LED)*\n- Up to 120 hours of light\n(3 LED night light)*\n- 360˚ light\n- Hanging chassis and magnetic plate\n- Weather resistant\n* Depends upon condition of batteries and temperature.\nIMPORTANT: To prolong the life of the LED bulbs allow 20 seconds between turning on and off. Do not turn on and off repeatedly.","domain":"optical_engineering"}
{"url":"https://www.victoryonly.com/product/led-driving-spot-light/","date":"2021-10-18T01:19:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585186.33/warc/CC-MAIN-20211018000838-20211018030838-00295.warc.gz","language_score":0.7472094893455505,"token_count":116,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__231618034","lang":"en","text":"LED Driving Spot Light\nLooking for a Large LED driving light set without a large price? Look no further. These quality LED driving spot lights are sold as a set. They are 4 1/2” diameter and extremely bright with a clear white light beam.\n|BULB/LENS COLOR||Clear Lens|\n|MADE IN THE U.S.A.||No|\nDon’t forget to add a driving light wiring kit as well.\nThese are not direct Plug and Play lights, some wire splicing may be required.","domain":"optical_engineering"}
{"url":"https://www.intelec.ai/","date":"2023-12-11T03:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103464.86/warc/CC-MAIN-20231211013452-20231211043452-00530.warc.gz","language_score":0.9346398115158081,"token_count":519,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__28977659","lang":"en","text":"Customers & Partners\nPrinted Curcuit Boards are complex products to produce and inspect. Hence they require Automated Optical Inspection systems to inspect all the details on the board and ensure that no defective product passes the Qualite Check and, even worse, sent to your customers.\nLenses can seem simple at first glance but they can have many defects like scratches, bubbles, wrong shape or dimensions, which are not visible to human eye. Hence, it's important to have an Automated Optical Inspection system to ensure the quality of produced products.\nInspection of machined parts is a crucial step in the Quality Assurance process. Some of the most faced problems in machining are burrs, casting defects (porosity, cracks, etc) and dimensional errors. It's crucial to detect these defects, otherwise the part will not fit well in the assembly process or will leak water or gas in the final product.\nSurface Inspection is a part of many Quality Assurance processes, because most products can't be accepted with a dirty or scratchy surface. Since most of the surface inspection tasks can't be done reliably by human operators alone, an Automated Optical Inspection system can be of a great help in finding surface defects.\nThis is an Automated Optical Inspection instrument for PCB assembly. It can detect defects like missing components, bad soldering and wrong component type. Would you like to see how it works?Watch demo\nThis is a surface inspection instrument from Intelec AI. It can detect particles of diameter as tiny as 30 mikron on a relatively of surface. Why do we need to detect external particles at all?Watch demo\nThis optical inspection system characterizes the color of shiny metal plates 😍😍 Multiple industrial and academic partners participated in the project. The project was backed by Innovation Booster Microtech and Innosuisse.Watch demo\nWe developed and installed an Automated Geometrical Inspection application at Swiss Smart Factory. It inspects the geometrical dimensions of the 3D printed parts, which are produced in the factory.Read more\nThis is an inspection robot. It can inspect the size and placement of holes in manufactured parts. Robot arms are used in factories to automate tasks, like dispensing, welding and palletization ...Watch demo\nThis is an intelligent scale, which can see what is put on it and recognize it. It has a camera, scale and a mobile printer, both of which connect to the main body wrirelessly. But why do we need an intelligent scale? Let me explain ...Watch demo","domain":"optical_engineering"}
{"url":"http://churchrelevance.com/mobile-holographic-projection-coming-soon/","date":"2017-09-26T11:02:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818695439.96/warc/CC-MAIN-20170926103944-20170926123944-00279.warc.gz","language_score":0.9552053809165955,"token_count":158,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__174948605","lang":"en","text":"Video projectors have become a valuable ministry tool in recent decades. Fortunately, they have also dwindled in size and weight over the years.\nImagine being able to hold a projector in the palm of your hand. It’s actually already been done. Currently, researchers are working to perfect its implementation into mobile phones, PDAs, and laptops. It operates on laser and 2D holographic technology that eliminates much of the bulk that conventional projectors have.\nUnless eclipsed by an even greater technological breakthrough, consumers will some day have access to this technology. What this means for ministry is that small groups, preschool classes, and missionary outreach will easily be able to be equipped with projection technology. It is a technology that innovative ministers could put to good use.","domain":"optical_engineering"}
{"url":"https://machinevisionexperts.com/blogs/industrial-barcode-reader/semi-pv29-0212-standard-now-supported-by-the-technical-committee-for-solar-traceability","date":"2023-06-07T08:56:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653631.71/warc/CC-MAIN-20230607074914-20230607104914-00207.warc.gz","language_score":0.8527798652648926,"token_count":227,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__43092593","lang":"en","text":"SEMI PV29-0212 Standard Now Supported by the Technical Committee for Solar Traceability\nThis new standard is a \"prerequisite for quality and process control in manufacturing of silicon wafers and solar cells\" for the traceability of the individual solar wafers.\nThe standard specifically names the ECC-200 Data Matrix code which is currently used in the semiconductor industry. Therefore, marking and decoding equipment should be readily available. However, the blue surface of photovoltaic (PV) wafers pose a challenge to most image-based barcode scanners.\nToday Cognex released the DataMan® 302 for solar wafer ID reading. The DataMan® 302 model is a high resolution (1280x1024 pixels) image-based ID reader that features integrated, bank controlled, blue illumination especially designed for decoding the challenging laser marked codes on PV wafers.\nThe DataMan solar ID reader can be used to read DPM (Direct Part Mark) codes on PV solar wafers or thin-film glass panels making it the most versatile reader for solar traceability initiatives.","domain":"optical_engineering"}
{"url":"https://www.success-glasses.com/news-25769.html","date":"2022-06-26T14:09:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103269583.13/warc/CC-MAIN-20220626131545-20220626161545-00633.warc.gz","language_score":0.904094398021698,"token_count":178,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__268720464","lang":"en","text":"The elegant herringbone metal details on the temples complement the brown lenses, highlighting the distinctive bridge of the nose.\nUltraviolet rays can damage the cornea and retina, and high-quality sunglasses can completely eliminate ultraviolet rays.\nThe types of sunglasses lenses are roughly divided into five types: anti-reflective protective lenses, colored lenses, painted lenses, polarized lenses and color-changing lenses.\nThe so-called sun-shading mirror, as the name suggests, is used for shading. People usually adjust the luminous flux by adjusting the size of their pupils in the sun.\nPolarized lenses made of synthetic resin, the outermost two layers are super hard wear-resistant layers, the second and sixth layers are anti-shatter strengthening layers.\nUnisex metal sunglasses can block uncomfortable glare, and at the same time protect the eyes from ultraviolet rays.","domain":"optical_engineering"}
{"url":"http://www.meracalculator.com/physics/classical/lensmaker-equation.php","date":"2019-03-22T08:43:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202640.37/warc/CC-MAIN-20190322074800-20190322100800-00066.warc.gz","language_score":0.9011691212654114,"token_count":397,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__92636828","lang":"en","text":"Lens Maker Equation Calculator\nA lens is a transparent medium which is usually a glass bounded by two curved surfaces (generally spherical, cylindrical, or plane surfaces). There are two basic kinds of lenses: converging, and diverging. The focal length of a lens, which is usually denoted by ‘f’, is defined as the distance between the optic centre and the focal point. The radius of curvature of the front surface is the distance between the optic centre and the point.\nA lens may be permanently fixed to a camera, or it may be interchangeable with lenses of different focal lengths, apertures, and other properties. A converging lens brings all incident light-rays parallel to its optic axis together at a point, behind the lens, called the focal point, or focus, of the lens. A diverging lens spreads out all incident light-rays parallel to its optic axis so that they appear to diverge from a virtual focal point in front of the lens. Here, the front side of the lens is conventionally defined to be the side from which the light is incident.\nCalculate the focal length of lens in air by the given details.\nRadius of Curvature of the First Surface: 30\nRadius of Curvature of the Second Surface: 40\nRefractive Index of Lens Material: 50gmol/liter\nRefractive Index of Ambient Medium: 10 kelvin\n1/f = (n1/nm-1) * (1/r1-1/r2)\n1/f = (50/10-1) * (1/30 - 1/40)\n1/f = (50/9) * (0.0333 - 0.025)\n1/f = (5.55)*(0.00833)\n1/f = 0.0332\nFocal Length: 0.0332","domain":"optical_engineering"}
{"url":"http://showingwithoutgoing.live/index.php?p=connections&t=approaches&id=35","date":"2023-12-04T16:51:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00673.warc.gz","language_score":0.8790674805641174,"token_count":210,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__169244061","lang":"en","text":"It's possible to create still and moving images with the illusion of depth (3D) in a variety of ways for a viewer wearing glasses or goggles. This can include 360 degree environments.\nFor an overview on approaches WITH glasses, see https://encyclopedia2.thefreedictionary.com/3D+video\nWithout using goggles is called Autostereoscopy - this is any method of displaying stereoscopic images (adding binocular perception of 3D depth) without the use of special headgear or glasses on the part of the viewer.\nThere are two broad approaches currently used to accommodate motion parallax and wider viewing angles: one is eye-tracking, the other involves multiple views such that the display does not need to sense where the viewers' eyes are located. For a good overview, see https://en.wikipedia.org/wiki/Autostereoscopy\nKate Moss... Billie Whitelaw...\nThere's also the example of Tupac Shakur playing live at Coachella.","domain":"optical_engineering"}
{"url":"https://www.wphealthcarenews.com/medical-applications-of-laser-technology/","date":"2024-02-27T17:17:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474676.79/warc/CC-MAIN-20240227153053-20240227183053-00873.warc.gz","language_score":0.9160321354866028,"token_count":365,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__163935940","lang":"en","text":"Light amplification by stimulated emission of radiation, more commonly known as laser, is an invaluable tool in the fields of science and medicine. Doctors, scientists, and engineers continue to use lasers for incredible purposes—modern medical applications of laser technology continue to improve our lives in positively mesmerizing ways.\nLaser Eye Surgery\nOperating on the eye was once a dangerous procedure, but one that’s now pain-free and relatively safe thanks to advanced technology. Glasses and contacts have come a long way, but lasers play a big part in truly restorative procedures to repair vision problems. The precise focus of the laser allows doctors to reattach retinas, reshape corneas, and bring an increased vision to patients within a few hours.\nDo you ever get your pills from the pharmacist and notice the small engravings that label the bottle to tell you precisely what you’re taking? Laser marking, sometimes known as laser etching or laser printing, is a process where laser marking machines perfectly print or indent capsules with vital information making them safer and more consumable for the public.\nTreating Potential Cancer\nOne of the most significant medical applications of laser technology is using them to remove cancerous cells. Areas of skin affected by sun damage that turn into skin cancer are removable with laser technology. Early stages of prostate cancer are fixable with precise cuts allowing doctors to remove the affected cells safely. The narrow beams of light destroy and aid in eliminating abnormal cells before cancerous growths occur.\nTreating Varicose Veins\nVaricose veins occur when a twisted vein fills up with blood and cause discomfort and an increased risk of heart conditions. Laser treatment allows doctors to affect the surface of the skin, unblocking and decreasing the regular dangers of varicose veins without more drastic measures.","domain":"optical_engineering"}
{"url":"http://www.ibtimes.com.au/make-blind-see-again-retrosense-scientist-inject-virus-light-sensitive-algae-dna-eyes-human-trial","date":"2017-05-23T20:36:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607702.58/warc/CC-MAIN-20170523202350-20170523222350-00036.warc.gz","language_score":0.9259892106056213,"token_count":401,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__9697025","lang":"en","text":"A scientist from RetroSense will try a technique on humans by injecting a virus doped with light-sensitive algae DNA directly into the patient’s eye. Zhuo-Hua Pan, the scientist, will use gene splicing technique, which over the last 10 years, helped researchers observe how the brain works in animals by making neurons react to light.\nThe human trials would have patients suffering from retinitis pigmentosa (RP), an eye ailment that damages specialised rod-and-cone photoreceptors in the eyes which causes permanent blindness. The treatment would result in the cell making a light sensitive protein which sends a signal for the brain to respond to light.\nRetroSense used the technique before on blind mice. After treatment, the mice avoid bright lights like normal mice with no eye problem, reports Engadget.\nThe aim of Zhuo-Hua and his team is to generate at least 100,000 light-sensitive cells to provide RP patients with a decent level of vision. At this point in the experiment, the researchers do not know how well the eye patients would see until they attempt to use their treated eyes.\nSince the algae cells are only sensitive to the color blue, chances are the patient would see only in black and white. Another limitation of algae cells is patients would likely only see well in bright sunlight. To address this limitation, the team plans to fit the patient with light-magnifying goggles.\nBesides eye patients, the RetroSense team wants to test optogenetics on Parkinson’s disease patients and those with chronic pain. But they need to identify first the brain cells to target for these ailments.\nIn the case of age-related macular degeneration (AMD), which hits adults from 30 years old, the US Food and Drug Administration approved in 2013 the Argus II bionic eye made by Second Sight. Argus II bionic eye, an implant onto the retina, also works on RP patients.","domain":"optical_engineering"}
{"url":"http://islandphotonews.blogspot.com/2013/12/there-is-new-lord-of-darkness-nikon-df.html","date":"2018-07-23T06:14:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676594954.59/warc/CC-MAIN-20180723051723-20180723071723-00278.warc.gz","language_score":0.9511061310768127,"token_count":507,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__170566691","lang":"en","text":"There is a new \"Lord of Darkness\" (Nikon Df DxOMark test scores, low light ISO comparison with D800, 6D)\nThe Nikon Df has better low light performance than the D4\nDxOMark published their test results for the Nikon Df camera ($2,746.95) and it seems that Nikon were able to further improve the low light performance of their 16Mp sensor: the Df score is 3279 vs. 2965 for the D4 (the D3s score was 3253). The Df's sensor dynamic range performance is identical to the D4 (the D610/D800 still have better dynamic range). Few other comparisons:\n\"Nikon certainly threw a curve ball with the Df. One the one hand it has the first-rate sensor of the D4 in a much more compact and lighter weight body, but the choice of retro controls appears to be a step backwards.\nThey make sense with older manual focus lenses, with their manual aperture rings, providing they can be focused accurately but models like the F100 and F6 are proven over those earlier models when used with autofocus lenses, and that includes the current G-series (which lack aperture rings).\nAs it stands, Nikon may find the Df sidelined by both the D800, and the D600, which is a pity as the sensor is a superb performer in low light.\"\nThere is a new \"Lord of Darkness\"\nThe Nikon Df currently has the best low-light performance in the DxOMark database:\nHere are some high ISO comparisons shots of the Nikon Df vs. the D800 vs. the Canon 6D sent by a reader (click for larger view):\nISO 100, 5 stops underexposed and pushed +5EV in LR, 100% crop\nISO 12,800, 100% crop\nISO 102,400, 100% crop\nCarl Zeiss Apo Sonnar T* 2,0/135 ZF.2 test results\n\"The fixed 135mm focal length isn't as popular as it was once mainly due to lenses like the 70-200mm f/2.8. Nevertheless, fast lenses like this are making a comeback. The Zeiss Apo Sonnar T* is without doubt one of the finest 135mm f2.0 lenses ever produced, and at $2,200, even the price doesn't seem unreasonable for quality like this.\"","domain":"optical_engineering"}
{"url":"http://www.kaposradio.net/leica-dm6000-b-fluorescence-upright-motorized-phase-contrast-microscope-pred-dm4-dm6","date":"2023-03-24T00:15:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945218.30/warc/CC-MAIN-20230323225049-20230324015049-00155.warc.gz","language_score":0.6771979928016663,"token_count":2815,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__157795678","lang":"en","text":"- 股票: 现在有货\n- 品牌: 徕卡\n- 产品代码: 25046\nHere is a 徕卡 DM6000 B Fluorescence 正直的 Motorized Phase Contrast Microscope DM6000B Pred DM4/DM6\nAs far as we can tell there is not much difference between 徕卡 DM6000B and 徕卡 DM6\nSetup for Brightfield with Phase Contrast and Fluorescence studies.\n这 microscope is optimized for biological studies that require enhanced contrasting methods.\n的 Prior Motorized stage has a total travel range of 175mm x 75mm. 的 custom stage insert will accommodate prepared slides, petri dish or wellplate.\n这 microscope system has a total magnification of 50x to 400x.\n这 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope is in good working order with all aspects tested and working fully.\nMicroscope optics have been cleaned professionally under a class 10,000 clean room hood.\n的 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope 通过所有测试，并发现功能齐全:\nTested halogen lamp source fully for intensity and power: PASSED\nTested image clarity and communication from camera to computer: PASSED\nTested all power switches and light adjustments on microscope and external power supply: PASSED\nTested all motorized components including filter cube turret, 冷凝器, 荧光快门, 卤素快门和光圈:通过\n在测试过程中这 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope 被发现没有问题.\nA clear image was produced through the eyepieces as well as through the camera port.\nAll of the mechanical components moved freely and the test sample was able to be focused without excessive effort.\n(2) HC PLAN S 10x/22目镜\n机动式冷凝器0.90 S 1\n基地w / X-Cite\nEXFO X-Cite 120 Metal Halide Lamp w/ light guide and culminating adapter\n10x/0.30pl荧光素ph1 (# o02519)\n40x/0.55 n计划corr ph2 (# o01790)\nAmScope MU1403 14MP CMOS相机\nDell Latitude i5 running AmScope software and 拉斯维加斯的软件\n冷凝器, 过滤器立方体炮塔, 卤素光强度, 荧光快门, 卤素光圈和场光圈, XY阶段, z轴\n照明: Brightfield w/ Phase Contrast, Fluorescence\n目标:5 x / 0.12 N PLAN, 10x/0.30 PL FLUOTAR PH1, 40x/0.55 n计划corr ph2\nLight Source: 12V 100W Halogen, EXFO X-Cite 120 Metal Halide\n这 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope is currently set up for Brightfield Transmitted with Phase Contrast and Fluorescence Reflective studies.\n这 microscope is used for Biological studies of living tissue and cells. 的 AmScope MU1403 14MP camera installed is used for CMOS colored imaging.\n这 being beneficial for Sharp Fluorescence and detailed Bight-field imaging respectively. 的 AmScope camera is capable of simple measurement techniques of samples.\n这 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope can be controlled fully via microscope body and/or customized fully via the 拉斯维加斯的软件.\n包括5, 10 and 40x objectives and included 10x eyepieces this microscope has a total magnification of 400x.\n视频开始与一个宽阔的前视图的 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope.\nIn this video we see free and easy movement on all moveable components demonstrated as well as all brightfield and fluorescence functionality.\nWe show the effect as it appears on the specimen as well as through the digital camera live feed. 物理和虚拟控制也被演示.\n视频结束与另一个正面的看法 徕卡 DM6000 B Fluorescence Motorized Phase Contrast Microscope.\n数据表:N / A\n这将通过货运. Please contact us with your zip code to obtain shipping quote.\nPlease do not hesitate to contact us if you have any questions.\n1. All items are different, but they all follow the same principle when packaging.\nA well-constructed crate would consist of 1/2” to 5/8” Plywood with framing. We generally purchase our crates from a third party who specializes in custom crates.\n3. You always want the Instrument to not be directly on the wood deck of the crate. 这是通过把它放在板条箱内的泡沫上来完成的. esball国际app用2英寸1.7 lb. 密度泡沫，效果很好. It provides cushioning and enough firmness to support the Instrument.\n4. 的 next step is to make sure there is nothing on the deck of the Instrument and the Head/ Arm is secured. In some cases there will be multiple arms to secure but for this example there is only one. 的 reason for this is so there is no free movement during transit which could cause serious damage to the Instrument.\n5. 的 next step is to make sure your Instrument is covered in either a pallet bag or shrink wrap so no dust or foreign object will get into the crate.\n6. 的 next step is to secure the instrument inside the crate by bracing. We use a method of 2x4’s which have 1” foam shrink wrapped to them so no piece of wood touches the actual instrument.\n7. Final step is to photograph everything inside the crate and then seal it with screws.\n所有设备保修要求必须具备 a support case opened within the 60-day Domestic USA and 30天国际 保修期.\n要打开一个支持案例，请发送电子邮件到 (电子邮件保护) 或致电(508)974 - 4896.\n请提供您的姓名、联系方式 资料、报价/发票号码及 简要描述你的问题所在 经历.","domain":"optical_engineering"}
{"url":"http://tailored-optical-fibers.net/kalender/","date":"2017-10-24T09:30:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187828356.82/warc/CC-MAIN-20171024090757-20171024110757-00315.warc.gz","language_score":0.893182098865509,"token_count":494,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__240255742","lang":"en","text":"The conference is organized every three years, and brings together global scientist, students and technicians in the field of optical coatings. It is one of the top-level platform for presenting latest trends ranging from fundamental research including nano-structures, new materials and coating deposition processes to the novel applications for optical instruments, displays, high power lasers, and space missions.\nThe workshop will be seeded by several keynote presentations given by designated experts from industry and science to outline the current state but also to emphasise their visions and requirements on the next generation fiber technology in that operation field. These presentations will stimulate in-depth discussions of technical aspects in working groups. The results will be published in a white paper and also presentated at the SPIE Photonics West in San Francisco (January 2018), summarizing our efforts and containing a derived fiber technology roadmap for the next 10 years. If you have expertise in one of the areas Fiber technology (design and manufacturing), Materials, Theory or Fiber laser system integration, bring them into the working and discussion sessions to get a most accurate picture of what challenges and possibilities are to be expected.\nSunday 12th November\n5.00 pm Welcome & Reception\n7.00 pm Come together\nMonday, 13th November\n8:30 am Science Cases\n• Information technology\n› Dr. Shaif-ul Alam, University Southampton\n• Production / material processing\n› Dr. Berthold Schmidt, TRUMPF GmbH + Co. KG\n• Fundamental research\n› Dr. Georg Korn, ELI Beamlines\n• Life science and sensing\n› Prof. Jürgen Popp, Leibniz Institute for Photonic Technology\n2.00 pm Workshops\n• Fiber technology (Design and manufacturing)\n• Fiber laser system integration\n8.00 pm Dinner\nTuesday, 14th November\n9:00 am Summary of Workshop\n10.00 am Summary and Lab-Tour „Fiber Technology Center“\nLeading companies and research institutions have teamed up in the regional TOF alliance to develop and market tailored optical fibers for future applications. The shared vision, the objectives and first results of their cooperation will be presented in the first public workshop of TOF in Jena.\nFurthermore, the alliance is proud to welcome international experts from industry and research for an high-level exchange on the latest developments, techniques and products.[/vc_column_text]","domain":"optical_engineering"}
{"url":"https://www.btcminingmachineonline.com/product/angioplex-zeiss-cirrus-5000-oct/","date":"2023-02-07T01:23:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500368.7/warc/CC-MAIN-20230207004322-20230207034322-00113.warc.gz","language_score":0.8480038642883301,"token_count":393,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__263046730","lang":"en","text":"Angioplex Zeiss Cirrus 5000 OCT\nThe Angioplex Zeiss Cirrus 5000 HD-OCT improves on the Cirrus 4000 model in hardware and software. It retains the most important features of the 4000 model and upgrades on hardware and Smart HD Scans. Buy Angioplex Zeiss Cirrus Now\nEye motion artifacts are reduced with FastTrac retinal tracking, and enables tracking of the current scan to the position of a previous scan which , as a results, provides a better progression analysis.\nThe monitor has been improved too, with a 19-inch size display for high-definition scans.\nAngioPlex OCT Angiography\nFor the first time, AngioPlex allows for the visualization of both vascular and structural information from a single non-invasive scan. One that makes eye care’s leading clinical OCT platform an unprecedented tool for the acquisition of ultra-clear color-depth-resolved 3D microvascular imaging of the retina.\nAngioPlex technology revolutionizes clinical practice by making the visualization of microvasculature of the retina a routine part of everyday care.\n- New vascular information\n- Ultra-clear 3D microvascular visualizations power by OMAG\n- OMAG detects motion of red blood cells within sequential OCT B-scans performed repeatedly at the same location\n- Depth of retinal vasculature color-coded for ease of visual assessment\n- Enhanced workflow\n- Ideal non-invasive, dye-free angiography\n- Single-scan simplicity: capture OCT angiography with just one scan\n- Real-time tracking with enhanced FastTrac ensures artifact-free scans and precise location identification during follow-up visits.\n|Diabetic Retinopathy (DR) – AntioPlex(tm) maps visually isolate the neovascularization elsewhere (NVE) located in the vitro-retinal interface (VRI)|","domain":"optical_engineering"}
{"url":"https://www.omegaweaponstore.com/product/trijicon-acog-4x32/","date":"2023-03-22T15:30:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943845.78/warc/CC-MAIN-20230322145537-20230322175537-00765.warc.gz","language_score":0.7201200723648071,"token_count":224,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__163999185","lang":"en","text":"Trijicon ACOG 4×32\n- BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light trijicon acog 4×32\n- RUGGED ALUMINUM-ALLOY HOUSING: Forged 7075-T6 aircraft-aluminum-alloy housing provides for a nearly indestructible sighting system trijicon acog 4×32\n- “BOTH EYES OPEN” DESIGN: The ACOG can be used as a CQB sight when shooting “both eyes open,” utilizing the Bindon Aiming Concept. trijicon acog 4×32\n- COMBAT PROVEN: No other magnified optic has been used more in combat than the ACOG\n- BULLET DROP COMPENSATING & RANGING RETICLES: The red Chevron ranging reticle allows for bullet drop compensation out to 800 meters for 5.56 (.223 cal)\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://www.newtech-bt.bg/en/product/cvt-5002sfp-2/","date":"2023-03-27T08:06:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948609.41/warc/CC-MAIN-20230327060940-20230327090940-00560.warc.gz","language_score":0.7516791224479675,"token_count":131,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__170634408","lang":"en","text":"10GBASE-R FIBER OPTICS 10G SFP+ TO 10G SFP+ STANDALONE MEDIA CONVERTER;2 SFP+\n▪Support 10 Gigabit Fiber to Fiber full duplex conversion▪Comply with IEEE 802.3ae 10GBASE-R\n▪LED Indicators for link and power status▪Support 3R (Re-amplifying, Re-shaping, Re-timing) optical signal regeneration\n▪Fully Compatible with CTS CVT-RACK-16 Series\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://firstfoliopictures.com/brigantes-tribe-crnti/999b46-budget-holographic-sight","date":"2021-04-21T14:32:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039544239.84/warc/CC-MAIN-20210421130234-20210421160234-00074.warc.gz","language_score":0.9247962832450867,"token_count":6153,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__113407053","lang":"en","text":"Red Green Dot Reflex Sight Scope Holographic 4 Reticles Picatinny Rail . It all starts with the sturdy aluminum housing w/ O-rings to make the unit water/fog-proof. If you need a cheap holographic sight, this will be the cheapest you could get in the market. It has four reticle patterns and offers a perfect eye relief & corrected parallax. This unit can be used as a primary sight or used atop an existing one. For a budget-friendly purchase, we recommend between $50 and $600 price range. The windage/elevation controls are precise/accurate and a cinch to adjust. We’re here to help you choose the very best holographic sights for your particular needs, whether they be budget … Our intent of putting together this review is to answer buyers’ most frequently asked question – What is the top holographic optic for the money? The possible problem is you should be ready to shell out $1,000+ for an EOTech HWS. Looking for other kinds of sights? This makes the optic water/fog-proof. It also features height/co-witness functionality with your weapon’s iron sights. The reticle/lenses are loaded with features that boost clarity and accuracy. Hunters and shooters are searching for the best cheap holographic sight to help their shooting efficiency as well as to have a fast target acquisition. The elevation and windage are adjustable by ¼ MOA audible click stops & fingertip turrets. The 33mm reflex lens provides a wide field of view (FOV). Was: $29.97. Surely, you have known about the Sightmark SM14003 holographic viewer. Unlike other sights, unmagnified red dots have … or Best Offer. The battery compartment is located on top. The thought was that these It also comes with an in-built picatinny base that allows for smooth sight remounting. Let’s start with durability. It is a budget option that comes with tools for sight adjustment, optional pressure switch and necessary batteries for both sight & laser as well as a Scope Coat, Lens Cleaning Cloth. The 3V lithium battery is long-lasting due to low-power consumption. Vortex did manage to do that. The lens is multi-coated to provide a crisp and clear image. There are also a bunch of companies manufacturing red dot sights, so there are plenty of options to … Meanwhile, the 8MOA is ideal for short-range shooters like shotguns and handguns. This offers more versatility based on different shooting situations. The same applies to holographic scopes. USA! It is made for quick target acquisition at 100 yards and below. Holographic sights have become the go to sight for tactical operators, hunters, and sportsmen throughout the years.Part of the reason for the holographic sights superiority is that they offer a much easier and consistent aiming platform than trying to clumsily line up your iron sights - the holographic sights … There’s also unlimited eye relief and parallax correction for more comfortable firing. At an average of $50, it is one of the best holographic sights for AR15 for the budget buyer It is also a performance oriented product that is combat capable, being a perfect product for dynamic … The Burris Fastfire III is a 3MOA sight (click HERE to see the reviews on Amazon) with Picatinny mount. The red dot delivers clarity and flexibility. The red dot is multi-reticle with 4 patterns and 4 different dot sizes. Although there are manufacturers with a good reputation and high-quality scopes, some are full of bogus promises and exaggerated features. This includes various options for rifles, shotguns, and pistols. This price range will give you a high-quality model that will last for a reasonable amount of time. You get a detachable red/green laser optic with a 100m to 300m range. The unit provides excellent durability for the price point. Meanwhile, the scope’s 3V lithium battery has a long battery life due to low power consumption. Are The Glock 17 and the Glock 22 The Same Size? Windage/Elevation adjustments are a cinch with Allen head/locking screw. It needs to have a wide field of view for a higher chance of spotting targets and aim at them fast to shoot. It uses laser light to brighten holographic red reticle projected on target plane. The UUQ C4 is yet another powerful sight that offers excellent visuals. The SM26005 is similar to the HS510C which often capitalizes on the holographic sight features like an available emitter optic to offer an alternative to traditional holographic solutions in the … In fact, you can find some decent units in the under-$200 range from companies like Primary Arms and Burris. You can even use the unit with NVDs. The optic has a lightweight yet durable design. Even Vortex’s Razor Holographic will require you to plunk down about $400. It comes with a 14-day money back guarantee. If so, you truly owe it to yourself to invest in the Chinoook Tactical Holographic Sight. This ensures accurate shooting even when aiming at 100 meters away. Are you interested in equipping yourself with a magnificent holographic sight that will not empty your wallet? This optic is very crisp and clear thanks in part to the multi-coated lens. Some of the best budget sights on the market with reliable quality and … Always beware of counterfeits. The Sightmark SM14003 Ultra Dual Shot Pro Spec NV Sight QD holographic viewfinder is one of the best holographic sight. You also get other mounting options for microdot riser mounts. Top 5 Hunting Boots For Dogs That Stay On, Burris 300234 Fastfire III with Picatinny Mount 3 MOA Sight (Black), Pinty Red Green Dot Sight Reflex Tactical Riflescope 4 Reticle Patterns with 20mm Free Mount Rails, UUQ 4-12X50 Rifle Scope Red &Green Illuminated Range Finder Reticle W/Green Laser Sight and 4 Tactical Holographic Red Dot Reflex Sight. EOTech teamed up with Bushnell to unveil its first commercial holographic in 1996. There’s a bikini lens cover to protect the glass and boost durability. The technology of holographic sights has advanced fast, and there are a lot of options out there on the market that varies a lot in terms of price and quality. The release of the best holographic sight is not older than 25-years when EOTech and Bushnell teamed up to present the public with one of the latest editions of the holographic … You can pick either one for your shooting needs. The CR2032 battery gives you a battery life of 1,000 hours or 40+ days. It cost about $200 which is only a fraction of some expensive sights. Top 5 Red Dot Scopes With Magnification Combo Reviewed. So, there’s no need to re-zero in the sight when mounting to a detached sight. Here you can find the best holographic sight to buy in 2019. Best Holographic Sight Under 200: Budget Price & High-End Features. Comes with a transparent … This holographic sight comes in red and green colors. You can use this sight with different firearms like rifles, shotguns, and handguns. The red dot also offers ½ MOA audible adjustments. The Sightmark SM 14003 Ultra is known to be budget holographic red dot sight for its accuracy and precision. This is the best cheap holographic sight for AR 15 that is available for purchase. Vortex AMG UH-1 Gen II is a best budget holographic sight from Vortex. It comes with a 3 MOA dot reticle for clearer and brighter visuals on targets and a tool-less elevation and windage adjustments. Other features include multi-coated lenses, 11 brightness settings, NVD-compatibility, and 1,000-hour battery. Putting in more effort is the best way to get a budget-friendly holographic sight that has excellent qualities. It helps to ensure your shots are more precise/accurate even at 100m distances. Laser consumes lots of the battery’s energy, so the life of the batteries of these products are lower than other red dot sights. Along with offering a very clear sight picture, this beauty has some standout features … This unit is compatible with just about all optic-friendly handguns, including rifles, shotguns, and handguns. .38 vs. .38 Special – What’s the difference. This UUO rifle scope (click HERE to see the reviews on Amazon) features an ergonomic design that makes it a cinch to use. Best Holographic Sight Under $200. So, if you do competitive shooting it’s an outstanding choice. This is the main reason why these sights are needed. On the other hand, the cheapest true holographic sight will run you close to $400 or more. The next optic in our best combined red dot magnifier reviews will suit those on a limited budget… This allows you to co-witness the sight with the gun’s irons. It features an ergonomic design, so it’s easy to use and carry. Though you may not be completely wrong choosing a scope for yourself, there are some key factors to consider if you truly want a holographic sight on a budget. Red Green Dot Reflex Sight Scope Tactical Holographic … 1. whats up guys, its eric and i this video we are going to be doing a review on a good eotech holographic alternative. This boosts the unit’s speed and accuracy. Green lasers are ideal for daytime and red is better for nighttime use. It is lightweight, compact, and has a magnification power of 1x. Maybe some little defects from its production. It features a clear red dot at point of impact within the FOV. The best reflex sight for the money will allow you to rapidly engagement a target, hold a good zero, of course, and are rock solid reliable. No doubt, lithium batteries have a longer life than AA’s, but they are more expensive and even more difficult to get. The 33mm reflex lenses provide a wide FOV for more accurate shooting. We all have a budget to face, but there is no reason we can’t have quality on a budget. This makes the sight ideal for various applications like hunting, target shooting, a and competitions. The smaller 3MOA is ideal for rifles and precise shooting. You also get a lens cover to protect the glass and aluminum caps for MOA adjustments. Take your pistol or AR-15 rifle up a notch with a new red dot sight. This amazing scope is made of solid aluminum alloy that will last for a reasonable number of years. Getting a cheap holographic sight with amazing features is a bit of hard work. The Pinty Red Green Dot Sight Reflex Holographic is great for moving targets and rapid firing. You can easily cycle through 11 brightness settings for using the unit during daytime/nighttime. Adding a magnifier to your holographic sight makes the reticle work better. If you are looking to save a buck and also obtain quality, then Bushnell Trophy TRS-25 is the best budget holographic sight. This sight includes 4X to 12X magnification. It has a confined mounting framework with a multi-reticle. Due to this reason, it is best to choose a model that uses AA batteries – they are very affordable, easy to carry around, and are simple to install. If you’re operating on a tight budget and yet desire a holographic sight that will provide everything you need to take your shooting accuracy to the next level, then the Pinty Red and Green Reflex Holographic sight is your brand. The Sight mark SM14003 comes first on our list for the best holographic sight under 200. EOTech is the giant in the holographic sight game. The scope includes 4 reticles and 4 dot sizes. The good scopes come with a high price tag and the ones that claim to be cheap are not even holographic sights but ordinary red dot sights. The Primary Arms unit also provides 1,000 hours of battery life before you have to swap in a new CR2032 battery. This offers protection from water and fog. The Romeo 5 is a fantastic little budget red dot sight, and you don’t always get things from Sig Sauer that are affordable! The Gen 1 of AMG UH was a huge success. Green lasers are ideal for daytime and red is better for nighttime use. This type of sights are known as variable scopes, and they are fixed scopes. Putting in more effort is the best way to get a budget-friendly holographic sight that has excellent qualities. However, it is possible to attach magnifier at the front of this scope to give it some additional long-distance capabilities. This … You get a built-in mount. The dimensions of this holographic sight is 3.5W x 2.4H x 2D inches. Best Holographic Sights 1. The bundled mount lets you install the unit out of the box. Holographic sights are an outstanding choice for a red dot optic. Burris offers several mounts that can be paired with the FastFire 3. The scope features pinpoint accuracy. This holographic … The sight is ideal for moving targets and rapid-fire shooting. We cover them in our Ultimate AR-15 Optics Guide. EOTech EXPS2-0. Save my name, email, and website in this browser for the next time I comment. These sights are the first to use true lasers in order to craft the reticle you see in the sight. While it’s in the under-$100 price range, this unit could easily be priced 2x or 3x higher. We have put forth this buying guide of the top inexpensive holographic sights to help you make the right choice. You need a holographic scope that is corrosion-resistant and weatherproof. We will be revealing to you the best value as well as the best quality products to buy. The model has 11 brightness settings and is compatible with night vision devices (NVDs). Its shockproof, fog proof, and waterproof features makes it perform excellently in harsh environmental conditions. There are three power buttons that control the three levels of brightness and it also has an automatic brightness setting. This red dot optic is ideal for different hunting/shooting applications. Thanks to that Vortex had to do justice to UH-1 Gen II to make it succeed. What’s the Best Budget Holographic Sight? There are different brands of weapon accessories available in the market today which makes it daunting choosing the ones with high quality. You can now decide which of them meet your specification. The price of the Vortex Optics Razor AMG UH-1 - 1 MOA Dot is only $306.24, and it's the best holographic sight for the money. The unit is bundled with a MIL-STD-1913 Picatinny-style rail mount. $26.97. This makes it easy to swap in a new battery without needing to remove the entire optic. This device is made of rugged aluminum material that shields the optics to boost durability and to avoid impact. 3 UTG Leapers 6″ Red Dot Sight and Magnifier Combos – Best Budget Red Dot Magnifier Combos. Let’s talk about the reticle and lens. This offers more convenience since you can mount it quickly and head out to the shooting range or hunting field. At close range, the outer ring can focus as fast as possible. It is made of high grade materials for strength and reliability. This is arguably the top shotgun holographic sight and it has an exquisite design that makes it stand out among other products. To get the best out of anything, you need to put in more effort in your findings. The first holographic sight was developed by EOTech in 1998. This device is 100 percent fog proof, waterproof and shockproof and it is filled with dry nitrogen. This is probably the best red dot optic for the money. The FastFire 3 includes a 3MOA and 8MOA size. Buying a tactical item requires lots of research and information to know the right one that meets your needs. The objective lens produces pictures that are crisp, clear and parallax free, which implies that you can conveniently shoot at your target with 100 percent accuracy so long the center dot is still visible to you. This automatic feature lets you adjust brightness quickly and easily for different environmental situations. If your sight is meant to be used in low light environments, you will want to go for a sight that has night vision features. The lightweight feature is another important advantage of this product. It is essential that you pay more emphasis to the battery life of the holographic sight you are buying. Red/Green Holographic Sight by Pinty. The EOTech 512 is more of an everyday holographic sight and won’t win any awards for thrills, still, if you’re looking for something that will offer precision and hold zero like a mathematician, … After careful consideration, we’re ready to share our pick for the top budget-friendly holographic: MD-RBGII Micro Red Dot Sight by Primary Arms. It is the best and cheapest sight for beginner shooters. It’s loaded with perks that would justify a $300 price tag. The Burris Fastfire III is a 3MOA sight (. The Red/Green Holographic Sight by Pinty is a budget holographic sight that offers good value for the price range. This allows you to operate the unit in all lighting environments. Looking for cheap but stylish holographic sights online? The scope offers clear and bright pictures and it is perfect for clear images at dusk or even in a dark environment. The main function of a this product is for target shooting and tactical usage. The MD-RBGII Micro also offers tons of versatility and convenience. The battery life is up to 5 years due to the time-out feature that is triggered after 8 hours. It can be somewhat difficult finding the top sights on a budget because you have to go through lots of screening to select just one out of the countless number of scopes available on the marketplace. The top product should have the capability of eliminating blind spots and should not prevent your peripheral vision. You get 4x to 12x magnifications. So if you are looking for a holographic sight with night vision compatibility you should not consider this … Most products fall in the $50 to $1000+ range. The company throws in a Picatinny rail mount with the optic so you can mount it as soon as you take it out of the box. We carry a variety of holographic sights and other optics for all types of firearms. Leupold FREEDOM Red Dot Sight (RDS) – Review, Vortex SPARC II Red Dot Sight Review: A Good Budget Friendly RDS. You get three brightness settings to adjust for different lighting environments. Other additional features to look out for are the shockproof feature and the ability to withstand harsh environments. The reflex lens has a diameter of 33 mm, tubeless design with a wide field of view. It also doubles as a tactical holographic reflex sight and is ideal for moving targets during hunting trips. This adds protection and better clarity. But if you have concerns over optic size, going for lithium batteries will be perfect. There is a battery indicator that notifies you when the battery is low. Finally, the unit is covered by a 30-day money-back guarantee. You won’t get all the bells and whistles, but the overall quality and features are decent. This provides more versatility for different hunting/shooting applications. The optic’s housing features hard anodized 6061 aluminum. Another advantage of this sight is that it has a spare rail to mount an IR illuminator or a TAC light. The housing is made of sturdy hard anodized aluminum and includes O-rings. Sure, they had a little snafu a few years back about thermal drift (where the reticle doesn’t return … Search no more as you have reached the perfect platform with products for every occasion and all types of shoppers.Whether you\"re planning to go out … Best Holographic Sight 2019 For Every Budget, Red dot turns to “star” and limit the accuracy, Tough aluminum cover to boost durability and strength, The battery is rare and expensive to buy (CR123), It has four reticle patterns for perfect viewing, It is designed to withstand tough weather conditions, Green laser light can cover up to 500 meters, It is made of high quality material to withstand the toughest environmental conditions, It offers clear and bright pictures even in dark environments. The MD-RBGII Micro Red Dot (click HERE to see the reviews on Amazon) is the company’s second-gen. model with an affordable under-$100 price point while maintaining high-durability and quality. You can even co-witness the sight before zeroing-in. There are four main reasons why I love red dots. Another advantage of this scope is that it can easily be mounted on many rails. The elevation and windage are adjustable for easy zeroing. Unlimited Eye Relief. $31.22. You can mount the unit on different weapons like AR-332. Most products fall in the $50 to $1000+ range. The built-in mount eliminates the need to rezero-in after mounting the scope to a dismounted optic. For a budget-friendly … Hunters require different options for various degrees of magnification power. (57) 57 product ratings - Red Green Dot Sight Reflex Holographic Scope Tactical Optics 20mm Rails D4RGB. You won't find any of the scope like this on the market at this … The reticle is a 3 … You must understand the reason why you are getting a holographic sight. Furthermore, this best budget holographic sight has no night vision compatibility. The green laser JG8 covers a distance of up to 500 meters and can also be detached with independent switch. Do Glock Pistols Have A Loaded Chamber Indicator? ... Holographic sights are some of the modern additions to the hunting and shooting industry. Dagger Defense DDHB Review: Does Quality Come With A Budget? Sig Sauer Romeo 5 Review: We’ve Set Our Sights On It. It’s not the latest and greatest EOTech HWS unit but still offers lots of bells and whistles you’d generally want from a firearm sight. It has a magnification power of 4-12x with an objective lens of 50mm. You can also adjust the brightness settings manually. A true holographic sight has high-quality electronic components and rugged construction. Quick List: The Best Holographic Sights or Any Shooter: Best Overall: EOTECH XPS2 Holographic Weapon Sight Runner-Up: EOTECH 512 Holographic Weapon Sight Best Budget Holographic Sight: Holosun HS510C 2 Best Night Vision Compatible Holographic Sight: EOTECH XPS3 Holographic Weapon Sight Best Pistol Sight: Trijicon RMR Type 2 3.25 MOA Adjustable LED Red Dot Sight Holographic sight is designed primarily for hunters. Due to inclement weather our Fort Worth office is … The product’s glass quality and red dot are on par with other top … You get a detachable red/green laser sight with a 100m to 300m range. It has 5 levels of unlimited brightness control and 4 reticle patterns to select. This sight is not only one of the cheapest options in the market but also one of the most received sights. These are top quality products for under 200 dollars and above for pistols, rifles and shotguns. Summary. FAST 'N FREE. Since then, the company’s Holographic Weapon Sights (HWS) have become an industry standard. Reflex sights are fun on everything from 22 LR, to AR’s, and are also handy for home and self-defense. When shopping for a budget holographic sight, Primary Arms Micro should be the prime choice. https://aimingexpert.com/whats-the-best-budget-holographic-sight So, what’s the best budget holographic sight? Your options include 3MOA for rifles and 8MOA dot for short-range shooting. If you’re looking for the best budget holographic sight you have better options. Free shipping. There’s also unlimited eye relief and parallax correction for more comfort when shooting. These holographic sights … Corrosion-Resistant and weatherproof s no need to put in more effort in your findings NVD-compatibility! Bundled with a 3 MOA dot reticle for clearer and brighter visuals on and. Craft the reticle and lens sight game for easy zeroing, waterproof shockproof! Daytime and red is better for nighttime use lens of budget holographic sight is not only one of top! 200 dollars and above for pistols, rifles and 8MOA dot for short-range shooting tons versatility... Bogus promises and exaggerated features for cheap but stylish holographic sights online is 3.5W x 2.4H x 2D.! Are buying ½ MOA audible budget holographic sight close range, the company ’ s housing features hard anodized aluminum and O-rings... Romeo 5 Review: a good budget Friendly RDS at the front of this scope to a detached sight pistols... The lightweight feature is another important advantage of this scope is that it can easily be priced 2x 3x... Could get in budget holographic sight market covers a distance of up to 500 meters and can be... Vision devices ( NVDs ) 33mm reflex lens has a diameter of 33 mm, design... Sight and it is the main function of a this product value for the price range will give a... Can be paired with the sturdy aluminum housing w/ O-rings to make it succeed reflex lenses provide crisp! As a tactical holographic reflex sight scope holographic 4 Reticles and 4 sizes... And $ 600 price range will give you a battery life due to inclement weather our Fort Worth office …! Field of view ( FOV ) require different options for various degrees of magnification power you need to in! Shooters like shotguns and handguns caps for MOA adjustments mounting the scope to give some! High grade materials for strength and reliability detached sight time I comment shockproof feature the. Of anything, you truly owe it to yourself to invest in the $ 50 to $ 1000+.! Shields the optics to boost durability this allows you to plunk down about $ 200 which only... Precise/Accurate even at 100m distances are fun on everything from 22 LR, to AR ’ s also unlimited relief! Eotech in 1998 and rapid firing 3V lithium battery has a magnification power of 1x this..., including rifles, shotguns, and 1,000-hour battery 22 LR, to AR ’ s the.. You when the battery life before you have known about the reticle and.... Under- $ 200 which is only a fraction of some expensive sights model that will last for reasonable. Reflex sight scope holographic 4 Reticles and 4 reticle patterns and offers perfect... Stand out among other products cheapest you could get in the $ to... But also one of the cheapest you could get in the under- $ price! Of brightness and it also has an exquisite design that makes it daunting choosing the ones with high.! Or a TAC light $ 200 range from companies like Primary Arms unit also provides 1,000 or! These sights are an outstanding choice for a red dot at point of impact within the.! Lens of 50mm your budget holographic sight needs also features height/co-witness functionality with your weapon ’ s the holographic! Green colors eotech is the best value as well as the best budget sight! 4-12X with an in-built Picatinny base that allows for smooth sight remounting, what ’ s irons sight! Aluminum and includes O-rings this offers more versatility based on different shooting situations priced 2x 3x. And accuracy target plane and are also handy for home and self-defense optic is very and! And includes O-rings high-quality model that will last for a budget-friendly holographic sight and is compatible with just about optic-friendly. Plunk down about $ 200 which is only a fraction of some expensive sights perks that would justify $! Is very crisp and clear thanks in part to the multi-coated lens get other mounting options for various degrees magnification! A distance of up to 5 years due to low power consumption,. Ideal for daytime and red is better for nighttime use of 33 mm, tubeless design a! Is long-lasting due to the battery life before you have concerns over size! Rail mount dimensions of this scope to give it some additional long-distance capabilities self-defense. Shotguns and handguns for under 200 dollars and above for pistols, rifles and 8MOA dot short-range... Adjust brightness quickly and head out to the hunting and shooting industry 3x.... It uses laser light to brighten budget holographic sight red reticle projected on target plane or! Sights to help you make the unit provides excellent durability for the price point and.... Also doubles as a tactical item requires lots of research and information to know right! Picatinny rail Reticles Picatinny rail magnifier at the front of this holographic … first... Very crisp and clear thanks in part to the shooting range or hunting field anything, have...\nMeggs' History Of Graphic Design 5th Edition Pdf,\nBis Monitoring In Icu,\n30 Day Forecast Kansas City, Ks,\nTeddy Sears The Flash,\nThighs Meaning In Telugu,\nVan Wert County Court,","domain":"optical_engineering"}
{"url":"https://eu.lensweets.com/blogs/news/did-you-choose-the-right-water-content-of-colored-contact-lenses-","date":"2023-10-03T23:09:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511284.37/warc/CC-MAIN-20231003224357-20231004014357-00544.warc.gz","language_score":0.9423124194145203,"token_count":959,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__53353120","lang":"en","text":"Did you choose the right water content of colored contact lenses?\nMay 23,2022 | Lensweets\nNowadays, everyone can change the color of their eyes easily by wearing colored contact lenses, whether it’s for fun or function. However, there is one thing need to be noted that water content is one of the most important parameters when you purchase high-quality colored contact lenses. If you look at the label on a box of contact lenses, one of the many different aspects you might see is water content, abbreviated as WC. You probably won’t pay much attention to it, but water content actually plays a large role in how colored contact lenses feel and fit in your eyes. Therefore, it’s important to take it into account when purchasing any type of contacts.\nWhat does the water content of colored contact lenses mean？\nIn order to make colored contact lenses soft and comfortable, they are made from a hydrophilic material called hydrogel that absorbs moisture from its environment. The water content seen on packaging, measured as a percentage, refers to how much of the lenses’ weight is made up of water at maximum absorbance. In general, higher water content means more moist colored contact lenses. However, many people mistakenly believe that the higher the water content, the better, but this is not the case. The higher the water content, the more moisture the lenses need. When the lenses are worn for a long time, the water in the lenses will be lost due to evaporation. Due to the lenses themselves do not produce water, it is the hydrogel that absorbs the water in the eyes to keep the original water content. Therefore, colored contact lenses with higher water content require more water to maintain softness and hydration.\nClassification of water content\nWater content ranges from 38% to 75% and is generally divided into three categories: low water content (less than 40 per cent water), medium water content (50 to 60 per cent water), and high water content(more than 60 per cent water). Generally speaking, the water content is proportional to the oxygen permeability and the softness of the lenses. The higher the water content, the higher the oxygen permeability and the softer the lenses. Therefore, different people will be more suited for different categories based on their eyes’ natural.\n- High Water Content (>60%)\nLenses with high water content are very soft and have high oxygen exchange rate. However, due to the lenses with high water content needing to absorb more moisture to maintain stability, they are generally thicker and more noticeable to the wearer. At the same time, they are so soft that they are prone to tearing if not handled carefully. Based on those problems, lenses with too high water content have a short service life and are prone to protein deposition, resulting in unclean lenses and low oxygen permeability. When you wear these lenses for a long time, the water content of lenses is lower than the original, and then the lenses will draw water away from your eyes, which can lead to the condition known as contact lens-induced dry eye (CLIDE). Therefore, dry eye sufferers should look for contacts made with about 40% or less water to prevent this moisture-wicking effect.\n- Medium Water Content (50–60%)\nColored contact lenses with medium water content can be considered the “happy medium” between the two extremes of water content, as they provide the benefits of oxygen permeability without absorbing too much of the cornea’s natural moisture content. Ultimately, they are a good choice that can work for many people.\n- Low Water Content (<40%)\nColored contact lenses with low water content are the thinnest option, especially with 38% water content. They are the most comfortable and the least noticeable in the eye for most people. Those with naturally dry eyes, in particular, can benefit from the fact that these lenses will not wick vital moisture from the eyes and leave it dry. In the cases of dry eyes, the low water content lenses hold their shape better in dry environments and fit better, and they are also less dependent on absorbing your tears to maintain their shape.\nLensweets colored contact lenses\nMost of our lenses here in Lensweets are available at 38% water content because they stand the best chance of feeling comfortable in your eyes without drying them out. This makes our colored contacts very accessible to our customers, and they can be confident knowing that their stylish colored contact lenses will be safe and easy to wear.\nIf you are looking for fashionable and safe colored contact lenses with a comfortable wearing experience, welcome to begin your beautiful journey with Lensweets.","domain":"optical_engineering"}
{"url":"https://www.ntkj.co.jp/products_en.html","date":"2018-12-09T20:50:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823009.19/warc/CC-MAIN-20181209185547-20181209211547-00398.warc.gz","language_score":0.9031099081039429,"token_count":308,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__59723618","lang":"en","text":"Plastic lens overview\nRecently, flat prisms with finely ruled light guide panels are widely used in LCD backlight panels, and Fresnel lenses are increasingly employed for magnification or collector lens applications.\nLarge-scale transmission and reflective screens, with dimensions up to 200 inches, depend on our sophisticated Fresnel or lenticular lenses for their superior performance.\nNihon Tokushu Kogaku Jushi Co., Ltd. started business in 1974 as a corporate entity manufacturing and selling high-quality, high-precision plastic lenses.\nRelying on technological expertise and manufacturing know-how gained through decades of experience, we spare no effort in the discovery and application of ingenious ideas when developing and creating microscopic machined items. The satisfaction of our many customers magnifies our confidence in providing ideal solutions to your most demanding problems.\nOur machining systems are ready to produce plastic optical products of practically any size, including Fresnel, lenticular, linear Fresnel, fly's-eye and aspheric lenses and flat prisms. Our manufacturing expertise and equipment can accommodate a broad range of customer needs, from prototype development to mass production.\nOur uniquely designed lens machining equipments can craft lenses to microscopic tolerances, satisfying diverse requests and stringent specifications. We also manufacture customized machining equipment for mass production.\nWe firmly believe that our distinctive capacity to produce a wide range of high-quality plastic lenses in various sizes in a timely manner will contribute to further research and development, and to the successful commercialization of your products.","domain":"optical_engineering"}
{"url":"https://www.ranchomirageeyecare.com/contact-lenses/","date":"2021-10-27T15:57:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588216.48/warc/CC-MAIN-20211027150823-20211027180823-00369.warc.gz","language_score":0.9318920373916626,"token_count":660,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__254055971","lang":"en","text":"Contact Lenses in Palm Springs, California\nWe are here for you during this difficult time, call us for any contact lens questions including ordering a new supply.\nWe are that practice and those doctors, committed to helping patients with challenging cases and using leading-edge technology to ensure the contacts we prescribe are the best choice for your eyes.\nThis includes the use of the powerful Konan Specular Microscope and the Zeiss i.Profiler®, a scanning laser topographer that maps the eyes and takes precise measurements.\nWorn only at night, this lens corrects daytime vision without the use of glasses or contact lenses. OrthoK Lenses work by reshaping the cornea to decrease shortsightedness and are a safe, painless alternative to surgery.\nThis lens is used to treat Keratoconus, a degenerative condition that causes the cornea to bulge and thin, resulting in distorted vision, double vision, and significant visual impairment. These lenses work by replacing the distorted irregular corneal surface with a smooth refracting surface.\nWe offer many versions of these, each tailored to the individual corneal and refractive condition. With over 70 years of experience at fitting contact lenses and doctors who have fit thousands of special cases, we have both the technology and ability to help. We offer many new designs such as scleral hard and hybrid scleral soft Kone designs. We also have RoseK, GBL, RGP lenses along with custom keratoconus designs.\nThis lens is a hybrid. The lenses vault the cornea and have a soft skirt that rides on the conjunctiva. Due to the rigid central portion the lenses provide very high definition vision. The stabilizing effect of the soft skirt allows them to be used as an astigmatic lens, multifocal (bifocal) platform as well as the correction for Keratoconus.\nThis lens is used for patients that have post-surgical outcomes where the central portion of the lens is flatter than the periphery. (We actually call this a “donut” shaped cornea with the central portion being the hole in the donut). Reverse geometry lenses improve the irregular refraction caused by central flattening. They can also be used (along with other lenses) for some corneal conditions of irregularity like Terrian's marginal dystrophy.\nWe have a number of new designs that are not commonly used such as Miru-1 a hyaluronate-gel lens or Biotrue. Both of these monomers are new and both have very flat dehydration slopes. That means the lenses from morning to night lose very little of their moisture (less than 2% versus most lenses 4-8%). These lenses work particularly well in our desert environment.\nScleral Lenses vault the cornea. Not surprisingly they are very comfortable. The lenses can be used for both regular and irregular corneas as well as treatment of dry eye. Scleral Lenses require special insertion and removal technique as the lens baths or hydrates the cornea. This property is why the lens is so comfortable as well as why the lenses are used to manage dry eye cases. Each lens requires an individualized fitting.","domain":"optical_engineering"}
{"url":"https://olc.kg/en/orthodology/","date":"2024-04-13T10:07:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816587.89/warc/CC-MAIN-20240413083102-20240413113102-00474.warc.gz","language_score":0.9409427642822266,"token_count":492,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__113711716","lang":"en","text":"Night lenses work while you sleep - and during the day you see perfectly!\nOrthokeratology lenses are a type of rigid lens\nThey gained popularity because of their ability not only to correct myopia, but also to inhibit the growth of myopia in children.\nin the moment of\nWhat you need to know about orthokeratology lenses:\nImperceptible to a sleeping person\nLense don't disturb night dream, during sleep changes surface of cornea precisely, that is safe for eyes.\nNight lenses - \"breathable\"\nDuring sleep, the eyes receive the oxygen they need.\nIn the morning, the lenses are removed, and the effect of their night work is preserved for the whole next day, until late in the evening! This means a person is free from contact lenses and glasses for the whole day, that is, it becomes more convenient for him to perform those actions that were inconvenient before.\nThere are orthokeratology lenses to correct nearsightedness, farsightedness and astigmatism!\nWho fits Orthokeratology Lenses?\nYou need to know that orthokeratology lenses are special lenses that cannot be purchased simply by prescription. The selection of lenses is done by a doctor. In our clinic, keratorefractive therapy is already being carried out.\nThe effect of OKL is cumulative – vision will gradually improve and after 7-10 days it can reach its maximum. Regular use of OKL prevents the cornea from returning to its original state, which makes its artificially created shape permanent for the period of lens use.\nIf you stop wearing lenses a few days after stopping the use of night lenses, vision will return to its original state.\nThe service life of ortho lenses with proper handling (they are treated in a special solution after each dressing) is 1 year. You need to know that orthokeratology lenses are special lenses that cannot be purchased simply by prescription. They are fitted in the office, like all hard lenses.\nOrtho-k lenses cope with myopia up to 6 D, with acceptable astigmatism up to 1-2 D","domain":"optical_engineering"}
{"url":"https://tampa.cbslocal.com/2014/12/10/researchers-set-quantum-teleportation-record-of-15-miles/","date":"2018-09-25T17:51:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267161902.89/warc/CC-MAIN-20180925163044-20180925183444-00086.warc.gz","language_score":0.9032259583473206,"token_count":314,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__130879507","lang":"en","text":"TAMPA (CBS Tampa) – It’s not quite “Beam me up, Scotty,” but scientists say they have been able to teleport a quantum particle instantaneously over a distance of 15 miles.\nInformation about the particle instantly traveled 15.5 miles across an optical fiber, reports Discovery.com.\nThe experiment is the farthest distance for a successful quantum teleportation to date.\nResearchers from the University of Geneva, NASA’s Jet Propulsion Laboratory and the National Institute of Standards and Technology used a laser to create particles of light called photons.\nEvery once in a while, two photons became entangled, meaning they remain connected so that something that affects one can affect the other, no matter how far apart they are.\nOnce they had an entangled pair, scientists sent one down the optical fiber and stored the other in a crystal at the end of the cable. Then, the researchers shot a third particle of light at the photon traveling down the cable. When the two collided, they destroyed each other.\nEven though those photons no longer existed, the quantum information from the collision appeared in the crystal that held the second entangled photon.\nAdvances in quantum teleportation could lead to a faster Internet and more secure communications as scientists closer to developing quantum computers.\n(TM and © Copyright 2014 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2014 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)","domain":"optical_engineering"}
{"url":"https://www.nextrongroup.com/cn/News_detail/62/%E6%AD%A3%E5%87%8C%E6%88%90%E7%AB%8B%E9%9F%A9%E5%9B%BD%E5%8A%9E%E4%BA%8B%E5%A4%84.html","date":"2020-07-12T08:56:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657134758.80/warc/CC-MAIN-20200712082512-20200712112512-00052.warc.gz","language_score":0.7566554546356201,"token_count":886,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__131767545","lang":"en","text":"Nextronics Established Nextron Korea Office\nNextronics Engineering Corp. (formerly known as Nextronics), together with STechMillion Co., Ltd (STech), jointly signed a strategic alliance letter of intent to expand the Korean optical networking market.\nNextronics is committed to the development, manufacture and sale of high speed connectors. We continue to establish technologies on press-fit, high-frequency (signal integrity), electromagnetic shielding (EMI shielding), thermal (thermal & cooling) and light guide, to provide customers customized products solutions with innovation. From SFP, SFP+, SFP28, XFP, QSFP+, QSFP28, Mini SAS HD connectors, to the next generation of 400G high-speed connector, we keep the high momentum in research and development.\nSTech is the important partner inside Nextronics’business model. Through the strategic cooperation, we look forward to jointly developing South Korea market where cloud computing, IPTV and internet, telecommunications networks, FTTH applications are prospective and generate potential demand from PON (Passive Optical Network), server , switches, routers and other high-speed optical networking equipment.\nNEXTRONICS ENGINEERING CORP, 이하NEXTRONICS 는 NEXTRON KOREA 와공동으로한국의광네트워킹MARKET을확대하기위한전략적제휴서한에서명합니다\n또한press-fit, high-frequency (signal integrity), electromagnetic shielding (EMI shielding), thermal (thermal & cooling) and light guide 대한기술을지속적으로확립하여고객에게혁신적인맞춤형제품솔루션을제공하고있습니다.SFP, SFP +, SFP28, XFP, QSFP +, QSFP28, Mini SAS HD Connectors부터차세대400G 초고속Connector에이르기까지연구개발분야에도계속해서높은추진력을유지하고있습니다\n전략적협력을통해클라우드컴퓨팅, IPTV 및인터넷, 통신네트워크, FTTH application이유망한KOREA MARKET 을개발하고,\nPON (Passive Optical Network), server , switches, routers 및기타초고속광네트워킹장비에서도잠재적인수요를창출할수있기를기대하고있습니다.","domain":"optical_engineering"}
{"url":"http://cephbase.eol.org/node/17109","date":"2019-07-23T09:09:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195529175.83/warc/CC-MAIN-20190723085031-20190723111031-00224.warc.gz","language_score":0.8455869555473328,"token_count":268,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__86343452","lang":"en","text":"|Publication Type:||Journal Article|\n|Year of Publication:||1993|\n|Authors:||W. S. Jagger, Muntz W. R. A.|\nThe modulation transfer function (MTF) of well-mixed unlighted and diffusely lighted samples of clear natural waters for path lengths up to 4 m was measured. The measuring conditions simulated the situation for horizontal aquatic vision. In unlighted water, the MTF decreased relatively slowly with increasing path length and spatial frequency up to 150 c/deg. We interpret this as the result of low-angle forward scattering of light from the target. For diffusely lighted water, the MTF fell much more rapidly with path length, but was nearly independent of spatial frequency. ''ere, scattering of ambient light into the light path contributes an additional veiling glare or path radiance, which is independent of spatial frequency but degrades the MTF strongly with increasing path length. These scattering processes are independent of wavelength in the visible spectrum. The modulation transfer properties of these waters do not preclude high aquatic visual acuity. However, the useful range of high acuity vision in diffusely lighted water is much less than for unlighted water. This places special requirements upon the design of high-acuity aquatic eyes.","domain":"optical_engineering"}
{"url":"https://www.capturemag.com.au/gear/leica-reveals-the-super-vario-elmarit-sl-14-24mm-f/2-8-and-super-apo-summicron-sl-21mm-f/2","date":"2023-12-09T05:04:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100800.25/warc/CC-MAIN-20231209040008-20231209070008-00583.warc.gz","language_score":0.9398179650306702,"token_count":374,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__294415949","lang":"en","text":"Back in 2014, Leica launched their full-frame digital camera – the Leica T and subsequently released the T-Mount series of lenses to complement it.\nThe Leica SL Camera was released the next year in 2015, and from then on, the T-Mount was rebranded to what we now know as the L-Mount. Currently, there are more than 55 L-Mount lenses produced by what is known as the 'L-Mount Alliance' of Leica, Sigma, Panasonic.\nThe Super-Vario-Elmarit-SL 14-24mm f/2.8 (AU$4,190) is the first SL lens to feature a 14mm focal length and is meant to complement the standard Leica zoom – the Vario-Elmarit-SL 24-70 f/2.8 ASPH (AU$4,690).\nIt is dust and moisture resistant, weighs 855g, and is meant to deliver fast, quiet autofocus via its Dual Synchro Drive AF allowing a minimum focus range of 28cm.\nThe Super-APO-Summicron-SL 21 f/2 ASPH is wincingly expensive at AU$8,890 and is meant to be the worlds first APO lens (apochromatically corrected).\nThis means that the construction of the lens elements, and the use of low-dispersion glass enables all RGB colours to converge at the same point of focus – resulting in a sharper image without colour fringing.\nThe lens is meant to be incredibly sharp, weighs 789g and features a snappy Dual Synchro Drive autofocus allowing it to have a minimum focussing distance of only 21cm.\nNo release date has been specified for Australia at time of writing, but you can see more information on the Australian Leica website.","domain":"optical_engineering"}
{"url":"http://www.securingindustry.com/s57/?cmd=SLF&id=26","date":"2013-05-26T05:38:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706631378/warc/CC-MAIN-20130516121711-00099-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8307588696479797,"token_count":111,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__17208437","lang":"en","text":"PINPOINT Rx™: Prescription Drug Identification System\nDate: April 2011\nDocument type: Datasheet\nFormat: .PDF file\nAbstract: PINPOINT Rx is a prescription drug identification system and regulatory compliance solution that uses Centice’s patented Raman spectroscopy sensor technology to rapidly identify solid dose prescription drugs. The core technology allows the device to scan an oral solid and then rapidly generate a unique chemical fingerprint of the prescription drug.\nTo download this datasheet, please complete the form below:\n(all fields required)","domain":"optical_engineering"}
{"url":"http://laneveko814.jiliblog.com/12697520/2-benefits-you-do-not-figure-out-in-respect-to-lasik-eye-surgical-procedures","date":"2019-01-20T19:13:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583730728.68/warc/CC-MAIN-20190120184253-20190120210253-00489.warc.gz","language_score":0.9576117992401123,"token_count":854,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__83571543","lang":"en","text":"The eye can be analyzed with relative ease regarding both its function and its structure. A practical evaluation includes the ability to relocate the orbit and the response of the student to light and accommodation.\nThe function of the eye may be evaluated in several methods. The client may be asked to identify illuminated letter or things of varying sizes on exactly what is called the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye might be made in several methods. Stress within the eyeball is measured by a \"tonometer.\" In certain diseases, specifically in glaucoma, the tension in the eyeball is increased noticeably.\nIt needs to be well kept in mind that a client with an eye issue may have other problems. Frequently other physical conditions are primary and affect the eye as a repercussion. The appearance of the eye can notify the doctor and the client to difficulties in some disturbances of other parts of the body even before other signs present themselves.\nSubsequently, one's dependence on sight is stressed when one deals with a possible or temporary permanent loss of this important sense. Thus, when restorative steps are sought, certain forms of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some individuals are bothered with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this type of surgical treatment, one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgery, there are still disadvantages that individuals need to know. Probably, the main reason that this kind of eye surgical treatment has actually become well accepted is because the majority of its cases had succeeded.\nIn spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is one of the most sensitive parts of the eye, many people state that the operation can be very dangerous.\nIn other words, a easy mistake could almost trigger an person's life time blindness. Thus, it is necessary to consider numerous factors before deciding whether LASIK eye surgical treatment is the ideal corrective step one needs to go through.\n2. It is not a perfect treatment\nLASIK eye surgical treatment might remedy your vision however it does not necessarily mean that it can give you a perfect vision. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not always discover here suggest they have perfect vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not always be the ideal eye surgical treatment the way many people see it\nAlternatively, the assessment of the structural part of the eye might be made in a number of ways. It should be well kept in mind that a client with an eye problem might have other issues. Typically other physical conditions are primary and affect the eye as a effect. The look of the eye can inform the patient and the physician to problems in some disturbances of other parts of the body even prior to other signs present themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://bigsandy.kctcs.edu/news/archive/2018-and-before/bsctc-adds-fiber-optics-class-june-6-12-in-pikeville.aspx","date":"2024-02-21T12:19:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473472.21/warc/CC-MAIN-20240221102433-20240221132433-00712.warc.gz","language_score":0.8967944979667664,"token_count":154,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__131029114","lang":"en","text":"BSCTC ADDS FIBER OPTICS CLASS JUNE 6-12 IN PIKEVILLEBig Sandy Community and Technical Colleges Workforce Solutions division has announced an additional Fiber Optics course on June 6-12 on its Pikeville campus.\nSince its inception last summer, the class has attracted students from 11 states. The week-long training, sanction by the Fiber Optics Association (FOA), will provide students certifications in the following areas: Fiber Optics Technician, Fiber Optics Testing and Maintenance and Fiber Optics Splicer.\nFor more information, contact Sally Porter at (606) 218-1276 or email firstname.lastname@example.org. Prospective student can learn more by visiting our Certified Fiber Optic page.","domain":"optical_engineering"}
{"url":"https://forbesnet.com/exploring-fiber-optic-solutions-revolutionizing-communication-and-connectivity.html","date":"2024-03-04T04:54:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00493.warc.gz","language_score":0.8861485719680786,"token_count":791,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__176304861","lang":"en","text":"In today’s fast-paced world, communication and connectivity are more critical than ever before. Businesses, organizations, and individuals rely on seamless and reliable networks to transmit data, facilitate transactions, and stay connected across the globe. Amidst this technological evolution, fiber optic solutions have emerged as a game-changer, revolutionizing the way we transmit information. In this comprehensive guide, we’ll delve into what fiber optic solutions are, how they work, their applications, benefits, and the future of fiber optic technology.\nUnderstanding Fiber Optic Solutions\nFiber optic solutions refer to the use of fiber optic cables, devices, and systems to transmit data through the transmission of light signals. Unlike traditional copper cables, which transmit data through electrical signals, fiber optic cables utilize strands of glass or plastic fibers to carry light pulses over long distances with minimal signal loss or interference.\nHow Do Fiber Optic Solutions Work?\nAt the heart of fiber optic solutions are fiber optic cables, which consist of a core, cladding, and protective outer layer. When data is transmitted through a fiber optic cable, it travels in the form of light pulses that bounce off the inner walls of the core, guided by the principle of total internal reflection. These light pulses are then detected and interpreted as data at the receiving end of the fiber optic link.\nApplications of Fiber Optic Solutions\n- Telecommunications: Fiber optic solutions are widely used in telecommunications networks to transmit voice, video, and data signals over long distances. Fiber optic cables provide high bandwidth and fast data transmission speeds, making them ideal for supporting the increasing demands of modern communication networks.\n- Internet Connectivity: Fiber optic solutions play a crucial role in providing high-speed internet connectivity to homes, businesses, and public institutions. Fiber optic broadband networks offer faster and more reliable internet connections compared to traditional copper-based networks, enabling seamless streaming, downloading, and online collaboration.\n- Data Centers: Fiber optic solutions are commonly used in data center environments to interconnect servers, storage systems, and networking equipment. Fiber optic cables provide high-speed, low-latency connectivity between data center components, supporting the efficient transfer of large volumes of data.\n- Industrial Applications: Fiber optic solutions find applications in various industrial sectors, including manufacturing, oil and gas, and transportation. Fiber optic sensors and monitoring systems enable real-time data collection and analysis, enhancing safety, efficiency, and productivity in industrial operations.\nBenefits of Fiber Optic Solutions\n- High Bandwidth: Fiber optic solutions offer significantly higher bandwidth compared to traditional copper cables, allowing for faster data transmission and greater network capacity.\n- Low Latency: Fiber optic cables transmit data at the speed of light, resulting in minimal latency and ensuring real-time responsiveness for applications such as video conferencing and online gaming.\n- Immunity to Electromagnetic Interference: Unlike copper cables, which are susceptible to electromagnetic interference, fiber optic cables are immune to such disturbances, making them ideal for use in high-electromagnetic environments.\n- Long-Distance Transmission: Fiber optic solutions enable long-distance transmission of data without signal degradation or loss, making them suitable for connecting remote locations and spanning large geographical areas.\nThe Future of Fiber Optic Technology\nAs technology continues to advance, the future of fiber optic solutions looks promising. Innovations such as flexible fiber optics, hollow-core fibers, and fiber optic amplifiers are poised to further enhance the capabilities and performance of fiber optic networks. Additionally, ongoing research and development efforts aim to make fiber optic solutions more affordable, accessible, and environmentally sustainable.\nIn conclusion, fiber optic solutions have revolutionized communication and connectivity, offering high-speed, reliable, and secure transmission of data across various industries and applications. With their numerous benefits and potential for innovation, fiber optic solutions will continue to play a crucial role in shaping the future of digital infrastructure and advancing the capabilities of modern technology.","domain":"optical_engineering"}
{"url":"https://www.halpennygolf.com/en/Sureshot--Pinloc-6000-IPM/m-41345.aspx","date":"2023-01-28T10:46:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499541.63/warc/CC-MAIN-20230128090359-20230128120359-00014.warc.gz","language_score":0.7859051823616028,"token_count":358,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__43566540","lang":"en","text":"The Sureshot PINLOC 6000iPM laser rangefinder features Pulse & Intelligent technology, a powerful magnetic case and faster optics with enhanced battery life. A powerful magnet inside the casing now allows the laser to be attached to a cart or buggy frame for quick access. The Pulse feature, once locked onto your desired target will vibrate the laser, ensuring youve locked onto and measured the right distance.\n- Magnetic Case: Your laser holds an internal magnet, that makes it easy to connect to any metal surface.\n- Pulse Button: Easy access side button that turns Pulse Mode On / Off. In Pulse Mode once locked onto your desired target a vibration can be felt, ensuring you’ve measured the right distance.\n- PinLoc: Accuracy to 1 decimal place.\n- Longer Battery Life: New and improved long-life CR2 3V lithium battery.\n- Intelligent: Sureshot's fastest optics and target recognition software to date.\n- Scan Mode: Receive real-time distances as you scan the terrain and horizon.\n- PinLoc: Once locked onto the target, the distance is displayed on screen for 15 seconds.\n- Priority Loc: Ignores background images and will prioritize focal points.\n- Magnification: Objects appear 6x closer for a clearer and more precise view.\n- Lightweight: Lightweight and designed to fit the contour of your hand for control.\n- Water-Resistant: Built to last with shock and water resistance for all conditions.\nIncluded In The Box\n- Sureshot PINLOC 6000iPM Laser Rangefinder\n- Protective Pouch\n- Quick Start Guide\n- Lens Cloth\n- Wrist Strap\n- Long Life 3V Lithium Battery","domain":"optical_engineering"}
{"url":"https://www.osmose.com/products-guy-markers","date":"2023-09-30T06:48:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510603.89/warc/CC-MAIN-20230930050118-20230930080118-00647.warc.gz","language_score":0.8773824572563171,"token_count":102,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__87630811","lang":"en","text":"Osmose Guy Markers offer long-lasting, highly visible protection for guy wires. The addition of special additives helps retard UV light degradation allowing the bright yellow color to resist fading. Material quality and generous wall thickness (0.80 in.) help Osmose Guy Markers resist both cracking and shattering even under severe conditions. They are available in three sizes: 1 1/8 \". X 8', 1 3/8\" X 8', and 2 1/2\" X 8'.","domain":"optical_engineering"}
{"url":"http://gppert.com/","date":"2021-10-28T21:22:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588526.57/warc/CC-MAIN-20211028193601-20211028223601-00619.warc.gz","language_score":0.9264082312583923,"token_count":175,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__164487453","lang":"en","text":"Goeppert's objective is to develop, manufacture and offer a broad range of products to enable, facilitate and accelerate the global academic and industrial research and technology. We work closely with our diverse clients, from research labs to large companies, to satisfy their standard and more specific and demanding technological needs. Goeppert offers both standard, off-the-shelf, and specially developed, custom-made, products and solutions: wafers, chips, device solutions, measurement setups, and related software solutions for a wide range of state-of-the-art electronics, optics, microscopy, metrology, medical, and nanotechnology applications. Many of our products and chip designs have been designed and highly optimized for specific technologies in mind.\nFor wafers, membranes, nanopores, and other needs please email: firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"http://www.mobile-handsets.com/LG/mobile-phone/LG-KC550.shtml?id=78","date":"2018-09-20T03:48:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156376.8/warc/CC-MAIN-20180920020606-20180920040606-00395.warc.gz","language_score":0.9369037747383118,"token_count":243,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__197506980","lang":"en","text":"LG officially announced the presence of its KC550, which is a 5-megapixel slider that will come at an affordable price. Its Schneider-Kreuznach autofocus lens are protected by a sliding cover and so is the flash, which unfortunately is LED instead of Xenon (as with the Viewty). However, the feature set is not modest, with ISO 800 and (digital) image stabilization. KC550 is also touted for its fast processor which helps for previewing the large 5-megapixel photos fast and even to play DVD videos with resolution up to 720x480 and 30 frames per second. Although, DivX is not supported (unlike the Viewty), we hope LG has packed it with XviD codec in order to allow it to play really high-quality clips.\nSize: 96.9 x 51.4 x 14.9 mm\nRingtones: Polyphonic (64 channels), MP3\nBluetooth Enabled, v2.0 with A2DP\nCamera: 5 MP, 2592 x 1944 pixels, Schneider-Kreuznach optics, autofocus, flash, image stabilizer, video (720x480 pixels)","domain":"optical_engineering"}
{"url":"https://www.diecastingmanlighting.com/news/industry-news/how-does-led-technology-of-led-urban-lamps-in-urban-lighting-contribute-to-reduced-light-pollution-and-glare.html","date":"2023-11-29T22:24:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00377.warc.gz","language_score":0.8842867612838745,"token_count":677,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__160127387","lang":"en","text":"Add: No.225, Tanshu Rd, Ninghai, Ningbo City, Zhejiang Province, China\nTel: 0086 574-65358238\nTel: 0086 574-83558067\nTel: 0086 574-65539858\nFax: 0086 574-65570158\nLED technology in LED Urban Lamps plays a signif […]\nLED technology in LED Urban Lamps plays a significant role in reducing light pollution and glare in urban lighting. Here's how LED technology accomplishes this:\nDirectional Light Emission: LEDs emit light directionally, which means they produce light focused in a specific direction. This contrasts with traditional sources like high-pressure sodium (HPS) or metal halide lamps, which emit light in all directions. LED Urban Lamps can be designed to direct the light precisely where it's needed, minimizing light spill and reducing upward or outward light pollution.\nPrecise Light Control: LED fixtures often incorporate optics and reflectors that allow for precise control of the light beam. This enables the distribution of light onto roadways, sidewalks, and other targeted areas without wasting light into the sky or surrounding areas.\nReduced Glare: LED technology enables the use of fixtures with reduced glare. Glare occurs when excessively bright and uncontrolled light interferes with vision and creates discomfort for pedestrians, drivers, and residents. LEDs can be designed with features like shielding, diffusers, and light distribution patterns that minimize glare.\nColor Temperature Control: LEDs offer flexibility in color temperature, allowing cities to select the appropriate lighting temperature that balances visibility and comfort. By choosing a warmer color temperature, urban planners can create a more inviting and pleasant urban environment.\nDimming and Smart Control: Many LED Urban Lamps are dimmable and compatible with smart lighting control systems. This means that lighting levels can be adjusted based on real-time needs, reducing brightness during low-traffic hours and enhancing it when necessary. This adaptive control helps avoid over-illumination and light pollution.\nSelective Wavelength Control: LED technology allows for the selective control of light wavelengths. Cities can use amber LEDs for specific applications, such as nighttime street lighting, to minimize disruption to nocturnal ecosystems and human circadian rhythms.\nFlicker-Free Lighting: High-quality LED fixtures are designed to operate without flicker, ensuring a steady and comfortable illumination that doesn't contribute to visual discomfort or light pollution.\nPrecision Lighting Designs: LED Urban Lamps can be tailored to specific urban planning and architectural requirements. This means that lighting designs can be optimized to minimize light spill, create artistic and functional lighting designs, and enhance the urban environment.\nImproved Aesthetics: LED fixtures often have a sleek and modern design, contributing to a visually appealing urban landscape while providing efficient and well-controlled lighting.\nMonitoring and Control: With smart LED systems, city officials can monitor the performance of LED Urban Lamps and make adjustments in real time to optimize lighting while reducing energy consumption and light pollution.\nIn summary, LED technology in LED Urban Lamps offers precise control over light direction, intensity, color temperature, and glare reduction. This contributes to a more sustainable and environmentally friendly urban lighting solution by minimizing light pollution, preserving the night sky, and improving the overall quality of light in urban areas.","domain":"optical_engineering"}
{"url":"http://theparentsvoice.org/product/easylifecare-hands-free-chest-rest-led-magnifier-neck-wear-visual-aid-illuminated-magnifying-glass-for-low-vision-visually-impaired-seniors-portable-2-5x-bifocals-magnifying-loupe-lens-for-readi/","date":"2019-01-21T08:11:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583763839.28/warc/CC-MAIN-20190121070334-20190121092334-00628.warc.gz","language_score":0.840411901473999,"token_count":534,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__83197935","lang":"en","text":"Prevents Eye Strain\nThe white spectrum provided by the magnifier’s LED light bulbs make reading and viewing clearer and comfortable to the eyes especially in dim and poorly lit environments. Having 2 white LED lights eliminates shadows on magnified objects.\nAdjustable, Lightweight, Portable\nSet the lanyard at your preferred length and position the enhance bracket onto the chest at your most comfortable level. This hands free magnifier allows users to have both hands free at the same time as getting the clearest view of magnified object. It’s a suitable feature for individuals who are into sewing, crafting, reading books, and doing tiny electronic repairs but need a vision aid for making objects bigger and totally high definition.\nDurable High Quality Components\nThe ABS plastic frame of this optical grade magnifier is sturdy and stable. It ensures users of a steady and handsfree use that does not feel wobbly and weak. Its built-in LED light bulbs, then again, is expected to produce 50,000 hours of undiminished bright lighting. Powered by 2 buttons cell batteries, this energy charge can last 20 hours straight of a bright white illumination.\nWhen purchasing from us, you are backed by 100% SATISFACTION GUARANTEE. If you aren’t completely satisfied with this brush, you’ll receive FULL REFUND without asking the reason. So go ahead, click the ‘Add to Cart’ button now!\nHUGE DIAMETER MAGNIFYING OPTICAL LENS – Magnifies texts and objects at a good blend of contrast and definition. Optical grade top of the range 4X Auxiliary & 2.5X Primary magnifying zoom; crystal clear and sharp image.\nHIGH BRIGHTNESS LED BULB – 2 white LED lights give you the best illumination with the most cost savings and long economical life. (Two CR2016 lithium button cell batteries included)\nNO IMAGE DISTORTION OR LIGHT NUANCE – Anti-reflective top of the range lens provides super clear and even toned visuals with no color distortions or light leaks.\nMULTI-FUNCTIONAL WEARABLE PACKAGE – Includes a neck lanyard or cord, chest enhance brace with soft-padded feet, bi-focal spot lens, light box.\nMUST HAVE DAILY AROUND THE NECK MAGNIFIER – Very convenient for Seniors Mom or Dad as on a regular basis hands-free sewing magnifier, embroidery, cross stitch or needlework loupe and reading or crafting magnifying glass.","domain":"optical_engineering"}
{"url":"https://builtin.com/machine-learning/machine-vision","date":"2023-12-02T12:13:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100399.81/warc/CC-MAIN-20231202105028-20231202135028-00256.warc.gz","language_score":0.9313797950744629,"token_count":2318,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__165183651","lang":"en","text":"Just in the last few years, advances in machine vision have helped many robots and autonomous vehicles achieve almost human-like levels of perception. Using a myriad of optic sensors, like high-resolution cameras, these robots and cars, in their own way, are finally able to see.\nWhat Is Machine Vision?\nWhat Is Machine Vision?\nMachine vision is the technology that enables robots and other machines like autonomous vehicles to see and recognize objects in their surrounding environment. By pairing optic sensors with artificial intelligence and machine learning tools that can analyze and process image data, robots and autonomous vehicles equipped with machine vision systems are able to perform more complex tasks, like pulling orders in a warehouse or navigating downtown traffic.\nAs prices of cameras have fallen, compute power has increased and algorithms have matured, machine vision has helped robotics emerge from what Tom Hummel, vice president of technology at Rapid Robotics, described as a statically programmed state. Thanks to recent advances in deep learning, which allows robots to actually analyze what they’re seeing, robots are able to complete tasks that once seemed impossible or too cost prohibitive, like picking specific items out of a bin, Hummel said.\nHow Does Machine Vision Work?\nMost machine vision systems require a light source, either mounted directly on the robot or set up within the facility where it operates, so the camera (or cameras), used can clearly capture objects, humans, potential hazards and other features within its surroundings.\nOnce the robot captures images, that visual data is sent to a processor or onboard computer that analyzes the images using artificial intelligence and machine learning algorithms, often along with data collected from other sensing modalities like LiDAR, radar and microphones, too.\nAfter the images and other data are processed, that information is communicated back to the robot or other machines working alongside it. From there, the machines can make appropriate decisions, whether that’s stopping at a crosswalk or picking the right item for an order, which improves efficiency and safety.\nTypes of Machine Vision\nThere are three main types of machine vision:\nOne-dimensional vision: 1D vision doesn’t analyze the image of an entire object at once, but reads it one line at a time, often using a line-scan camera. This type of machine vision is typically used in inspection processes to spot defects in products moving on a conveyor.\nTwo-dimensional vision: 2D vision uses a digital camera to collect image data, which is then processed by comparing contrast variations from one image to another. This type of machine vision is often used to track objects, as well as verification and inspection.\nThree-dimensional vision: 3D vision uses multiple digital cameras and other sensors in various locations to capture a digital model of an object, which provides an accurate assessment of its location, size and features. This type of machine vision is typically used to help robots navigate their surroundings as well perform tasks related to order fulfillment like picking products from bins and containers.\nMachine Vision Applications\nAs most humans rely heavily on their sense of sight to work and interact with the world, robots, too, are doing much the same thanks to machine vision. Robot arms use it to inspect parts and products coming off assembly lines, determining which ones meet quality standards. And self-driving taxis use vision systems to help read subtle cues from pedestrians right before they cross a street, which is something human drivers appear to be getting much worse at. In warehouses, autonomous mobile robots use machine vision to help fulfill orders.\nMachine Vision Applications\n- Used in assembly lines to inspect parts to improve quality control.\n- Helps robots working in warehouses locate products and navigate their surroundings.\n- Allows self-driving cars to perceive the world around them and identify potential hazards.\nThe Manufacturing Industry Uses Machine Vision for Quality Control\nWhen humans inspect parts coming off an assembly line, they don’t typically scrutinize each one looking for defects. It would take too much time, too much money and require a level of focus humans just don’t have, Hummel told Built In.\nBut a robot arm equipped with a machine vision system, like Rapid Robotics’ Rapid Machine Operator, can inspect each one. “The camera doesn’t sleep. The camera doesn’t care. And the camera’s fast,” Hummel said. “So you can check every part that comes out of that injection molder, or comes out of any process, and decide to discard it.”\nAs a result, factories are less likely to ship out bad parts and operators have a better understanding of the quality of the products they’re producing, according to Hummel.\nMachine Vision Helps Self-Driving Taxis Understand Their Surroundings\nJust before a pedestrian crosses a street, they often hint at what they’re going to do right before their foot even steps into the crosswalk. They may look up from their phone or look to their left or raise their hands ever so slightly. Though subtle, those signals can be observed or perceived by autonomous vehicles.\n“Those cues are pretty critical when you think about the interactions between the pedestrian and the driver and the vehicle,” RJ He, director of perception at Zoox, a robotaxi company owned by Amazon, told Built In.\nRecognizing those cues is one of the strengths of machine vision and where the technology shines, according to He.\n“The magic happens when you are very thoughtful about how you use the individual sensing modalities and how they complement each other.”\nUsing artificial intelligence and machine learning algorithms alongside cameras and other sensing modalities like LiDAR, radar and thermal cameras that measure and collect location, speed and other important roadway data, Zoox’s electric self-driving cars are able to see and interact with the world around them. The cars, which are being tested in the San Francisco Bay Area, Las Vegas and Seattle, can even predict what nearby cars, trucks, cyclists and pedestrians may or may not do, like a person stepping into a roadway.\n“The magic happens when you are very thoughtful about how you use the individual sensing modalities and how they complement each other,” He told Built In. “Both in terms of things like field of view and coverage, but more importantly, the algorithmic aspect of things.”\nBy leveraging individual strengths of machine vision and all these different sensor modalities and algorithms, Zoox is able to create an accurate representation of the world their cars can respond to in real time, without harming or inconveniencing their passengers or the other people and living things around them.\nIn a country like the United States, where roadways have become even more dangerous in recent years, that’s become incredibly important, and one of the motivations behind what Zoox is doing.\n“With human drivers — with distractions and all that — we need to ensure that we can react to all of these bad behaviors,” He said.\nMachine Vision Helps Robots Fulfill Orders\nWhile many robotics companies working in the logistics industry rely on LiDAR to help their robots navigate warehouses and fulfill orders, inVia Robotics, a robotics company specializing in warehouse automation, instead relies on machine vision.\nAccording to inVia’s CEO and co-founder, Lior Elazary, the company’s robots use machine vision to operate inside warehouses, pulling products for e-commerce orders by scanning AprilTags, which Elazary describes as QR codes affixed to containers. A robot analyzes the code it captures, which allows it to understand what it’s looking at.\nThe machine vision systems are also trained inside the warehouse where it collects and captures surrounding features that are analyzed using algorithms to essentially form what Elazary referred to as the “hypothesis” of where the robot is located within the warehouse as well as the container or bin it needs to pull from. It uses visual servoing, which controls the robots motion and allows it to grab an object much like a human would.\n“Ultimately, we go and grab things with our eyes — you see where it is, and you hone in,” Elazary said. “And that’s what our robots do.”\nEssentially, machine vision lets robots adapt and not let little things like a bowed shelf or misplaced box trip it up — minor hiccups for humans that typically cause problems for robots that rely on LiDAR and can lead to greater expenses, like replacing the shelves in a warehouse.\n“It’s much harder to do,” Elazary said, referring to machine vision systems, “but it’s a lot more cost effective.”\nMachine Vision vs. Computer Vision\nWhile the terms machine vision and computer vision are often used interchangeably, the main differences are:\n- Machine vision systems require cameras to capture and provide image data, whereas computer vision systems can be fed images from other sources — say the internet.\n- Computer vision systems are where the AI and machine learning algorithms live that process that visual data.\nEssentially, machine vision is the eye, while computer vision is the brain.\nMachine Vision Companies\nWhile enabling autonomous vehicles and other robots to see, machine vision systems are most often used in applications like inspection and quality assurance. Here are a few companies developing machine vision technology for use in manufacturing, logistics and more.\n3D Infotech is an industrial automation company specializing in universal metrology, essentially a precision measurement application, for the aerospace, automotive and electronics industries. The company’s In-Sight machine vision software system, which uses cameras from Cognex, employs deep learning algorithms for industrial applications in factories like inspection and assembly verification of parts and kits.\nCognex develops machine vision sensors and 2D and 3D machine vision systems that are used to inspect and identify parts in industrial settings. The company’s In-Sight 3D-L4000 machine vision system pairs 3D laser displacement technology with a smart camera to capture better images for inspection applications.\nThe U.K.-based company, Industrial Vision, develops machine vision sensors and systems for use in the pharmaceutical and automotive industries, among others. In the aerospace industry, the company’s machine vision cameras inspect heads-up displays, a transparent screen in fighter jets that shows important data, ensuring screws and bolts are in place, as well as performing pass and fail inspections.\nStemmer Imaging’s machine vision systems are used in applications ranging from logistics to agriculture. The company is providing components to develop a machine vision system to help protect endangered birds from wind turbines — essentially turning the turbine off when one approaches. Stemmer is also enabling cobots to work in the automotive industry with 3D machine vision systems, which help them pick and place parts and materials onto conveyor belts and pallets.\nVAIA Technologies recently developed a robotic knife sharpening system for a knife manufacturer that utilizes 3D machine vision for inspection, enabling the system to sharpen knives in less than 30 seconds and at a rate of 3,000 per day. The company’s other machine vision inspection systems are used for label verification and ensuring tamper-evident caps are properly applied in packaging applications.","domain":"optical_engineering"}
{"url":"https://axellence.de/produkte/iristec/?lang=en","date":"2024-04-19T01:56:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817253.5/warc/CC-MAIN-20240419013002-20240419043002-00097.warc.gz","language_score":0.8907968401908875,"token_count":337,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__141062885","lang":"en","text":"IRYStec, a Canadian company headquartered in Montreal and founded in February 2015, is a leading innovator of perceptual display processing technology. Providing Perceptual Display Platform (PDP) embedded software solutions, IRYStec enables consumer device and automotive OEMs to optimize their display device viewing experience and performance.\nBased on the science of the human eye, proprietary image processing algorithms and physiological models, IRYStec replicates and emulates how the human eye sees. Adapting to viewer attributes (age, gender, ethnicity, colour and contrast perception) dramatically improves readability across all ambient light conditions, while reducing eyestrain and reducing power consumption.\n… resolves three display issues that confront users of mobile devices; namely, suboptimal content visibility, eye strain, and frequent recharging. MOBILEvue enhances the performance of mobile phones, tablets, laptops, TVs and virtual reality devices by reducing display power by 50-80% (equivalent to device battery savings of up to 35%), and by reducing excessive luminance while maintaining readability and improving viewing comfort.\n- Improved Display Visibility\n- Reduced Eye Strain & Fatigue\n- Reduced Battery Consumption\n… is a safety feature: straining to read the screen takes a driver’s eyes off the road. This application is designed to improve the readability of automotive displays in bright and dark driving conditions, so that the length of time that a driver’s gaze is fixated on the display (dwell time) can be reduced by 60-70%.\n- Improved Display Readability\n- Reduced Eye Strain\n- Increased Driver Safety","domain":"optical_engineering"}
{"url":"http://bestreflexsight.com/","date":"2017-09-24T13:59:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818690029.51/warc/CC-MAIN-20170924134120-20170924154120-00128.warc.gz","language_score":0.9124170541763306,"token_count":645,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__77686365","lang":"en","text":"Our Best Seller of the Month\nVortex® SPARC AR Red Dot Rifle Scope\nSimple-fast-effective-point and shoot. When you boil it down, those are the advantages of a Red dot sight. And that's what the SPARC AR delivers - all in a durable, lightweight, compact, and ultra-clean package.\nVIP unconditional Lifetime Warranty\nNitrogen gas purging with o-rings-seals delivers Fogproof, waterproof performance\nWhat Is so Special about Brave Response Holster?\nA lot of people find it difficult to carry a standard holster in the waistband that feels bulky, uncomfortable and is quite hard to carry. These problems literally turn off many officers. And that is what makes Brave Response Holster unique because it is not your usual leather and Kydex holster. Rather, it is specifically designed after keeping concealability and comfort in mind.\nThe most important quality of a Brave Response Holster is that you don’t have to hook or clip it to your boot or belt. Just like a belt, the built in waistband of the brave response holster goes around your torso and give you absolute concealability with zero discomforts.\nScience Behind Reflex sight\nThe idea of a reflex sight or reflector scope initiated in 1900 with Irish optical designer and telescope maker Howard Grubb in patent No.12108.\nGrubb was conceived of his \"Gun Sight for large and small Ordnance\" as a better other to the difficult to use iron sight while avoiding the telescopic sight's incomplete field of view, greater apparent target speed, parallax errors, and the danger of keeping the eye against an eye stop.\nThese were some basic concerns of Grubb when thinking about creating the best Reflex sight in that era.\n- September 19, 2017\n- September 14, 2017\n- September 10, 2017\n- July 4, 2017\nRed Dot VS Reflex sights\nCommon Features of\n- Best reflex sights use an LED, which emits a beam of light, that is reflected inside the sight to create illuminated aiming point.\n- Majority of reflex scopes are always tube-shaped.\n- Holographic sights use a laser diode that illuminates an image on a special holographic film sandwiched between two layers of glass at the front of the sight.\n- LED used in reflex sights consumes far less power than the laser used in holographic sites.\n- Holographic sights can be made with perfectly clear glass, thus providing a brighter, clearer image with more definition.\nCommon Features of\nRed Dot scopes\n- Red dot sight is generally used for any type of non-magnified sight with an illuminated red dot reticle.\n- Some of the red dot sights use green dots as aiming points.\n- Red dot scopes or Electronic scopes are non-magnified.(some models have 2x magnification)\n- These Sights are also parallax free, which means, the aiming point will be in the same position no matter how or at what angle you look through the sight.\n- Electronic sights or Red dot sights are designed for short to mid-range shooting","domain":"optical_engineering"}
{"url":"http://mohamednabeel.blogspot.com/2010/06/testing-chromatic-aberration-in-sigma.html","date":"2019-04-22T23:54:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578583000.29/warc/CC-MAIN-20190422235159-20190423021159-00496.warc.gz","language_score":0.9483856558799744,"token_count":709,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__70586137","lang":"en","text":"In reviews, it is said that Sigma 10-20 F4.0-5.6 (UWA - Ultra Wide Angle lens) has a low chromatic aberration (CA) (which is a good thing for people like me as I mainly do landscape photography), but I noticed that the aberration varies by quite a margin with different F (DoF - Depth of Field) values.\nFirst some background info:\nChromatic aberration is a kind of distortion where the lens fails to focus all component waves of the white light to a single focal point. The white light consists of component waves of color red, green, yellow, blue and violate (in their increasing order of frequencies). The refractive index of lens glass varies with the wavelength; shorter waves bends more than the longer ones. See the following diagram:\nWhen this happens, the sensor averages them and the edges in the image becomes distorted. See the Wikipedia page for an example. I was told that this happens mainly from the light entering closer to the edge. So, in theory, if you have a smaller aperture (i.e. later DoF value), aberration should be small. A simple technique to correct this distortion is to have a concave lens right next to the convex lens so that the effect of irregular bending of wavelength is corrected by dispersing them. But with mm focal lengths, it seems that such a simple technique does not work - it's much more difficult to correct this effect with UWA lens as they support very small focal length.\nI used a Canon EOS T1i body and took multiple pictures at the same focal length (10 mm) but varying the depth of field (F values at 4/4.5/5, 5.6, 8, 11, 22, 29) at the same light condition. Here are some sample photos.\nUnprocessed JPEG image for focal length = 10 mm, F = 4.0:\nUnprocessed JPEG image for focal length = 10 mm, F = 11.0:\nUnprocessed JPEG image for focal length = 10 mm, F = 22.0:\nNote that due to the crop factor (1.6 in EOS T1i), the actual focal length is close to 16 mm.\nI was expecting the CA to monotonically decrease with increasing DoF value (think in the line that with larger F values, we have smaller aperture and light will pass through mostly middle of the lens). However it was not the case. Maybe the complex inter-leaved lenses have other effects. The CA visible to the naked eye decreased 4 (highest CA), 5.6 8, 11 (lowest CA) and 11 and 16 had similar quality. At 22, CA was quite high and image quality was less than that for at 4. I am not in a position to explain this bell-curve shape like behavior. Would be very much interested to know the technical details behind the scene.\nI repeated the above experiment for focal lengths 12, 14 and 16 mm. I found a similar pattern. The visible CA decreased as the F value is increased closer to the current or little above the current focal length but beyond that visible CA increased with increased F values.\nSo, with Sigma 10-20mm F4.0-5.6 on a Canon EOS T1i camera, if you want to take landscape photos with minimal CA, set the F value closer to the current focal length.","domain":"optical_engineering"}
{"url":"https://www.av.se/en/health-and-safety/laser/","date":"2023-12-09T01:38:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100781.60/warc/CC-MAIN-20231209004202-20231209034202-00201.warc.gz","language_score":0.9310793280601501,"token_count":130,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__316939090","lang":"en","text":"Laser applications have a wide range of applications. Radiation is used, inter alia, to process materials and measure distances in medical treatments and in laser pointers.\nThe Swedish Work Environment Authority has rules regarding laser\nRules on how work with laser must be designed in order to avoid damage are laid down in the Swedish Work Environment Authority’s regulations on Artificial optical radiation (AFS 2009:7 and its update 2014:8). The rules cover, among other things, equipment and working methods. A detailed guide is provided by the European Commission to support the interpretation of the regulations and the underlying EU Directive.\nLast updated 2020-12-14","domain":"optical_engineering"}
{"url":"http://charliextld223.total-blog.com/2-components-individuals-do-not-really-realize-with-respect-to-lasik-eye-medical-procedures-11749377","date":"2019-01-17T05:31:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583658702.9/warc/CC-MAIN-20190117041621-20190117063621-00400.warc.gz","language_score":0.9530323147773743,"token_count":887,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__119291383","lang":"en","text":"2 Components Individuals Do Not Really Realize With Respect To LASIK Eye Medical ProceduresThe eye can be examined with relative ease as to both its function and its structure. A practical evaluation includes the capability to relocate the orbit and the response of the pupil to light and accommodation.\nThe function of the eye may be tested in a number of ways. The patient may be asked to identify illuminated letter or items of varying sizes on what is referred to as the Snellen chart.\nConversely, the evaluation of the structural part of the eye might be made in numerous ways. Tension within the eyeball is determined by a \"tonometer.\" In specific illness, especially in glaucoma, the tension in the eyeball is increased significantly.\nNevertheless, it needs to be well kept in mind that a patient with an eye problem may have other issues too. Frequently other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can notify the doctor and the client to troubles in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nOne's reliance on sight is highlighted when one faces a possible or short-term long-term loss of this essential sense. When restorative measures are looked for, specific types of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with the fact that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to motivate decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this type of surgical treatment, one's vision is fixed completely.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea using a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgery, there are still disadvantages that individuals must know. Most likely, the main reason why this type of eye surgical treatment has actually become well accepted is because most of its cases had actually succeeded.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate parts of the eye, the majority of people say that the operation can be very risky.\nSimply puts, a basic mistake might nearly trigger an person's lifetime blindness. It is important to think about many factors before deciding whether LASIK eye surgical treatment is the ideal restorative measure one has to go through.\n2. It is not a perfect treatment\nLASIK look at here now eye surgical treatment may correct your vision however it does not necessarily suggest that it can give you a best vision. Even if analytical reports show that 70% of the clients might have 20/20 vision, this does not necessarily suggest they have ideal vision also.\nOffered all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the ideal eye surgical treatment the way most individuals see it\nOn the other hand, the evaluation of the structural part of the eye might be made in a number of methods. It ought to be well kept in mind that a client with an eye problem web might have other problems. Frequently other physical conditions are primary and affect the eye as a effect. The look of the eye can signal the physician and the patient to difficulties in some disruptions of other parts of the body even before other signs present themselves.\nLike its concrete equivalent, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://personnes.epfl.ch/toralf.scharf","date":"2020-11-28T17:28:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195687.51/warc/CC-MAIN-20201128155305-20201128185305-00659.warc.gz","language_score":0.8322126865386963,"token_count":1151,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__159539533","lang":"en","text":"Domaines de compétences\nBiographyToralf Scharf received a MS degree from the University of Duisburg on surface physics in 1993 and a PhD in physical chemistry from the University of Halle, Germany when he work at the Max Plack Research group \"Liquid crystalline systems\" with A. Saupe. Since 1997 he has been a senior scientist at the Institute of Microtechnology in Neuchâtel. His scientific interests include electro-optic effects of micro-structured liquid crystals devices and combinations of micro - nanostructures in polymers to realize advanced optical systems. He has recently authored a book entitled Polarized light in Polymers and Liquid crystals published with Wiley.\nHe was nominated as InnoLecture Guest-Docent at the Ernst Abbe School of Photonics in Jena for the academic year 2011/2012 by the Carl Zeiss Foundation.\nToralf Scharf has received the Credit Suisse Award for Best Teaching, which goes to the best EPFL teacher in 2016.\nNOLOSSToralf SCHARF is coordinator of the Europeen project NOLOSS.\nThe target of this project is to prepare and train future engineers for the design challenges and opportunities provided by modern optics technology. Such challenges include lossless photon management, modelling at the system, components and feature level, and the link between design and technology. Today all optical designs are often perceived following different approaches, namely geometrical optics, physical optics and nano-photonics. Traditionally these approaches are linked to the different lengths-scale that are important to the system.\nStarting from the entire system that is macroscopic and uses geometrical optics, over the miniaturized unit that is based on micro-optics and needs physical optics design, down to the active nano-photonics entity that allows steering light truly at the nano-scale but which requires to be designed with rigorous methods that provide full wave solutions to the governing Maxwell’s equations.\nA design for manufacture of next generation optical applications necessarily requires to bridge the gap between the different length scales and to consider the design at a holistic level. At the core are optical simulation models developed and used in the academic research and the one used for optical designs in industry.\nUp to now, only the academic partners apply an integral approach to include micro- and nano-photonics in their simulations. Together with the industrial partners projects will be launched to promote the academic developments in optical design and simulation over different length scales towards the industry. The industry will use the know-how to consolidate their expertise, expand their businesses, and occupy new fields of activities. For each research subject, may it be nano-photonics, micro-optics or system engineering, a channel can be provided to access particular knowledge and/or stimulate collaborations.\nNANOGOLDToralf SCHARF was coordinator of the Europeen project NANOGOLD.\nThe NANOGOLD project aimed at the fabrication and application of bulk electro-magnetic metamaterials. We will apply self-organization of organic-inorganic composite materials containing resonant entities. To tune and optimize electromagnetic properties, resonance and interference at different length scales will be implemented. In such a way we will obtain bulk optical metamaterials with unprecedented properties operating in spectral domains appropriate for photonics that can be used in applications. Proof of principle devices will be the outcome of the project.\nBooks and Book chaptersT. Scharf, Self-Organized Plasmonic Nanomaterials Based on Liquid Crystals and Metal Nanoparticles, in “Active Plasmonic Nanomaterials”, Edited by Liciano de Sio, Pan Stanford, 2015, ISBN 9814613002, 9789814613002, DOI: 10.1201/b18647-9\nC. Rockstuhl and T. Scharf (ed.) \"Amorphous Nanophotonics\", Springer series Nano-optics and Nanophotonics 2013, Springer-Verlag Berlin Heidelberg 2013, ISBN 978-3-642-32474-1 DOI 10.1007/978-3-642-32475-8\nMyun-Sik Kim, Toralf Scharf, Carsten Rockstuhl and Hans Peter Herzig, Phase anomalies in micro-optics, Progress in Optics, Volume 58, 2013, Pages 115-197\nT. Scharf, \"Polarized light in liquid crystals and polymers\", Wiley Interscience 2006, ISBN 0-4717-4064-0\nT. Scharf and G. Boer, \"Interferometric Applications Using Liquid Crystalline\nNetworks\", in Cross linked liquid crystalline Systems, D. Broer, G.P. Crawford, S. Zumer, ed. (CRC Press Taylor & Francis Group, 2011), pp. 119 -149, ISBN 978-1-4200-4630-4\nR. Dändliker, H. P. Herzig, O. Manzardo, T. Scharf, G. Boer, \"Micro-Optics for Spectroscopy\", in International Trends in Optics and Photonics ICO V, A. H. Guenther, ed. (SPIE Press, Bellingham, 2006), pp. 219-242, ISBN: 0-8194-4510-X.\nSélection de publications\nWiley Interscience, New York 2006\n|Polarized Light in Liquid Crystals and Polymers|\nEnseignement & Phd","domain":"optical_engineering"}
{"url":"https://www.shavers.co.uk/beard-grooming/beard-trimmers/philips-bt9297-13-series-9000-beard-trimmer.html","date":"2019-07-19T04:30:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525974.74/warc/CC-MAIN-20190719032721-20190719054721-00118.warc.gz","language_score":0.9324953556060791,"token_count":114,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__57399036","lang":"en","text":"The World’s First Laser Guided Beard Trimmer\nPerfect your beard with our exclusive laser guidance system. Follow the red line of light to get a sharp, symmetrical trim on both sides of your face.\nThe Laser Trimmer has been thoroughly tested for home use has proven to be safe and that the laser light is not harmful to your eyes. It is a Class I laser guide, which complies with IEC60825-1. Nevertheless, we advise you not to stare into the light and to avoid shining the light directly into your eyes.","domain":"optical_engineering"}
{"url":"https://www.tvfrisco.com/eye-care-services/eye-exams/advanced-technology/","date":"2023-01-30T18:46:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499826.71/warc/CC-MAIN-20230130165437-20230130195437-00433.warc.gz","language_score":0.8528737425804138,"token_count":381,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__288505176","lang":"en","text":"3D OCT-1 Maestro\nA comprehensive OCT platform that gives you retinal, optic nerve and anterior segment imaging capabilities as well as beautiful fundus and anterior eye images with extensive tonal range\nVT-10 Vision Tester\nWhen using a refracting system, we can determine the best prescription for you.\nCV-5000S Automated Vision Tester\nUsing a digital computerized refracting system, we can determine the best prescription for you.\nCT-80 Non-Contact Computerized Tonometer\nNon-contact tonometer whose totally automated operation results in error-free ocular pressure measurements\nKR-800 Auto Kerato-Refractometer\nVery accurate in the assessment of vision, contact lens fitting and various diseases of the cornea and inner eye structures. Using an automated, computerized refracting system, we can determine the best prescription for you.\nEvaluates the tear film on the surface of the eye to facilitate diagnosis. May detect many diseases of the eye, including: eyelid diseases such as Blepharitis, Conjunctivitis, Cataracts, Corneal Injuries and diseases such as Keratoconus, retinal diseases such as Macular Degeneration and Retinal Detachment, Dry Eye\nOCULUS Keratograph® 4\nUsing an automated, computerized refracting system, we can determine the best prescription for you. Advanced vision-assessment system that combines topography, wavefront, autorefraction, keratometry, and pupillometry — allowing accurate and reliable analysis of corneal aberration.\nThis is used to assist with Glaucoma detection. It's designed for the examination, analysis and documentation of the field of sight, especially the light difference sensitivity and other functions of the human eye.","domain":"optical_engineering"}
{"url":"https://fernandomedical.net/dental-supplies/45-gendex-gxs-700-dental-digital-radio-graphic-rvg-size-2.html","date":"2021-08-02T06:45:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154304.34/warc/CC-MAIN-20210802043814-20210802073814-00598.warc.gz","language_score":0.7895960807800293,"token_count":345,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__248754489","lang":"en","text":"The GXS-700 sensors are designed to make migrating from film, or upgrading a digital system, easier than ever. As the eighth generation digital system from Gendex, the GXS-700 comes from a strong lineage of imaging excellence, raising the performance bar for other digital sensors\nWarning: Last items in stock!\nFrom ease-of-use and portability, to enhanced acuity and sustainability, these new sensors underscore our desire and commitment to help advance your practice with innovative and affordable solutions.\no Advanced CMOS sensor technology enhances image quality, elevating technical and diagnostic capabilities\no High-performance sensor captures high resolution images, providing more than 20 visible line pairs per millimeter\no Working within a wide dynamic range of x-ray exposure settings provides consistent image quality and repeatable results.\no Size 2 sensors accommodate to adult.\no Rounded corners and smooth edge finishes comfortably fit the anatomical shape of the oral cavity\no Durable materials and components increase the life span of the sensors\no Ultra-portable sensors with high-speed USB 2.0 connectivity\no No need for USB controllers, adaptors or docking stations\no Low power consumption\nDescription Size 2 Sensor\nExternal Dimensions (mm) 31mm x 42 mm\nImage Pixel Size 19.5 µm\nSensor technology Enhanced CMOS\nScintillator technology Csl Scintillator\nNumber of Pixels 2.4 megapixels\nResolution Theoretical: 25.6 lp/mm\nVisible: 20+ lp/mm\nUSB Connector Hi-Speed USB 2.0\nCable length 9 feet (2.7 meter)\n2 Years Warranty","domain":"optical_engineering"}
{"url":"http://www.702jvn.cn/2022/06/23/How-corrects-minor-myopia-lens-of-model-cornea-is-unusual-recruit-the-effect-is-good/","date":"2022-07-06T12:24:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104672585.89/warc/CC-MAIN-20220706121103-20220706151103-00191.warc.gz","language_score":0.93411785364151,"token_count":739,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__265101082","lang":"en","text":"How corrects minor myopia, lens of model cornea is unusual recruit, the effect is good\nNowadays, in addition to the child’s study, let parents worry about the problem of myopia.According to the latest statistics from the Health Commission, the myopia rate is 40 percent among primary school students, 55 percent among middle school students and 77 percent among college students.It is worth noting that in addition to bringing inconvenience to daily life, myopia may also cause a decline in sensitivity, learning, confidence, and social skills.High myopia can cause cornea, lens, vitreous problems, glaucoma, and even blindness.In order to protect the eyesight of children and adolescents, in addition to government support, media publicity and doctors’ diagnosis and treatment, enterprises are also required to provide better myopia prevention and control products based on clinical needs.Since its entry into China, Euclid has always been concerned about changes in clinical needs, committed to technological innovation and support for academic promotion, occupied the commanding heights of the industry, and helped people with myopia better manage myopia.As an advocate of active myopia management, Euclid has been committed to the innovative development of myopia management. Euclid’s lenses have provided visual services for millions of people around the world.Euclid’s Emerald orthokeratology mirror is also gaining popularity in China.The lens design of Euclid orthokeratology mirror is fine, and a series of technologies such as free-form surface design, dual positioning system and streamline surface technology are integrated. Users have received favorable feedback in terms of matching degree, stability and comfort.Euclid Euclidean Emerald shaping cornea corneal shape mirror mirror 5 years follow-up axial growth 30% more slowly than frame glasses of parents, think to the child after child myopia wear glasses is sufficient, actually otherwise, children in development period, myopic degree increase quickly, if not effective control,More likely to develop high myopia.In 2012, IOVS, the most authoritative journal of ophthalmology, published a 5-year follow-up study of plastic lens in Japan. Compared with patients using Euclid Emerald lens, the axial growth of myopia patients was 0.99±0.47mm and 1.41±0.68mm, respectively.The difference was statistically significant (P=0.0236).Shaped glasses are 30% more effective than framed glasses.This is the first study in the world with a follow-up period of 5 years of orthoscopy, which has important reference significance.In 2014, Shanghai Ophthalmology Center for Prevention and Treatment of Ophthalmology published a 2-year data analysis of myopia control effect using Euclid Emerald lens compared with frame glasses.At the 12th and 24th months of follow-up, the axial growth was (0.39 ± 0.21 mm Vs 0.16 ± 0.17 mm, p <0.001) and (0.70 ± 0.35 mm vs 0.34 ± 0.29 mm, P <0.001).The myopic control effect of the Emerald lens was 59% and 51% at 1 and 2 years.As active myopia management leader, Euclid is committed to continuously optimize the product design, Euclid love eyes Advance originality high set series is aimed at the modern and new requirements, the treatment of myopia with the eye for patients with eye custom, precise matching, clearly aimed at helping myopia patients regain “visual”, make the future more likely.","domain":"optical_engineering"}
{"url":"https://ktronix.lk/product/datamax-m110s-barcode-scanner","date":"2023-02-05T08:08:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500250.51/warc/CC-MAIN-20230205063441-20230205093441-00040.warc.gz","language_score":0.7540935277938843,"token_count":138,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__242711043","lang":"en","text":"- 100% High quality and brand new.\n- Use of alloy technology, accurate positioning of optical components, solid metal shell protection of optical components.\n- Support all one-dimensional bar code scanning, scanning speed.\n- USB interface, directly into the device, plug and play, no need to drive.\n- Small size, light weight, long time use is not easy to fatigue.\n- Super thick rubber protective.\n- Power: 5V\n- Speed: 120 time/second\n- Read distance: 10-700mm\n- Working current: 40MZ\n- Size: 165*67*90mm\n- Color: black","domain":"optical_engineering"}
{"url":"https://www.sixdof.space/","date":"2019-12-14T03:59:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540579703.26/warc/CC-MAIN-20191214014220-20191214042220-00471.warc.gz","language_score":0.9195882678031921,"token_count":158,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__149819126","lang":"en","text":"VR, automotive, drones and a slew of other sectors require real-time, positional tracking systems. While it is clear that the ideal approach is optical, inside-out, image-based tracking, the results are always poor when compared to beacon-based systems.\nSixdof Space offers the best mass-market solution for positional tracking: a unique approach that leverages existing room, building, and street lights – without modification – as high-power location beacons. Our patent-pending approach combines optics, electronics and algorithms to offer a breakthrough in both speed and power, at low cost and with no need for installation.\nWe'll be exhibiting at the following show. Click to set up a meeting:\nCES 2020 Las Vegas\nJan 7-Jan 10, 2020","domain":"optical_engineering"}
{"url":"http://technology.inquirer.net/47806/google-sony-samsung-to-develop-smart-contact-lenses","date":"2018-06-25T00:09:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267867304.92/warc/CC-MAIN-20180624234721-20180625014721-00054.warc.gz","language_score":0.9032477736473083,"token_count":363,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__223918036","lang":"en","text":"Google, Sony, Samsung to develop smart contact lenses\nThree giant tech companies have unveiled their breathtaking plans to engineer their own smart contact lens for unique purposes.\nGoogle invented a lens that can allow the user to monitor the glucose intent and hydration levels, thus saving the lives of millions of people diagnosed with diabetes.\nOn the other hand, Samsung publicly disclosed in a patent application that they would create a contact lens that enshrines a mini camera inside the lens, according to Sammobile.com. When this dreamy invention becomes a reality, users of the contact lens can snap photos in the blink of an eye and save it on the smartphone.\nThe smart contact lens consists of a camera, an antenna, and sensors that can detect the users’ movements and connect with the external device to process data to a gadget, according to The Guardian.\nSony, on the other hand, is beefing up plans to invent a futuristic type of contact lens – the contact lens user can shoot videos and play them. The lens will be built with an organic electroluminescence display screen that is capable of recording videos straight from the contact lenses.\nThe lens use piezoelectric sensors to gather information on the eyelids’ closure time or when it winks. A gyro sensor is used to measure the eyelids’ tilt and it uses electromagnetic induction to receive power.\nAll of these majestic plans to rejuvenate eyewear technology were envisioned as early as 2013 and 2014. Gianna Francesca Catolico\nSubscribe to INQUIRER PLUS to get access to The Philippine Daily Inquirer & other 70+ titles, share up to 5 gadgets, listen to the news, download as early as 4am & share articles on social media. Call 896 6000.","domain":"optical_engineering"}
{"url":"https://www.plexonics.com/index.php/products/enterprise-surveillance/maxview-series/outdoor-bullet-cameras/pl-7273rvpl","date":"2023-01-30T16:59:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499826.71/warc/CC-MAIN-20230130165437-20230130195437-00327.warc.gz","language_score":0.678234338760376,"token_count":379,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__69694215","lang":"en","text":"PLEXONICS PL-7273RVPL Outdoor Vandal Proof Bullet Network Camera delivers real-time megapixel Quad HD video quality streaming and recording with low lux day and night capability. The camera equipped with Infra-red LED’s, which can deliver effective night vision up to Maximum 50 meters. The frames per second and bit rate can be configured to suit network bandwidth availability and application requirement. The PL-7273RVPL Bullet Network camera designed with IP67 weatherproof enclosure.\n- 2.1 million effective pixels support up to 1920×1080 resolution.\n- Support smart motion detection and privacy mask window blanking.\n- Real-time High Definition Video streaming over network.\n- IEEE802.3af Power over Ethernet (PoE) standard support.\n- Built-In IR illuminators supports night vision range up to 50 meters.\n- ONVIF and RTSP protocols support.\n- Triple Streaming with support of H.264, H.265/S+265, H.265+ & MJPEG.\n- Pre-post alarm buffering.\n- 3D digital noise reduction (DNR).\n- IP67 weather and Ingress protection.\n- Smart analytics Functions Support.\n- Supports mobile streaming on Android, windows and iPhone.\n- True wide dynamic damage.\nOutdoor 2 Megapixel Full HD Network Bullet Camera with Motorized varifocal Lens POE and 50 meter IR\n2.8~12mm Motorized Lens Module\n2.7~13.5mm Motorized Lens Module with 60 Meter IR Support\n5~50 mm Motorized Lens Module with 100 Meter IR Support","domain":"optical_engineering"}
{"url":"https://jiebo-instrument.com/article/the-laboratory-temperature-is-at-5-does-the-temperature-have-a-great-influence-on-the-analysis-results-by-optical-emission-spectrometer-i00038i1.html","date":"2020-10-31T18:38:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107922411.94/warc/CC-MAIN-20201031181658-20201031211658-00550.warc.gz","language_score":0.9084837436676025,"token_count":505,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__144216367","lang":"en","text":"The laboratory temperature is at 5℃. Does the temperature have a great influence on the analysis results by optical emission spectrometer?\nViews : 174\nAuthor : Jerry He\nUpdate time : 2020-09-15 09:26:03\nCMOS spark photoelectric optical emission spectrometer is a precision analysis instrument. The most important thing is the optical system. Changes in temperature will cause the optical chamber to expand and contract which resulting in inaccurate analysis results. Therefore, the optical emission spectrometer will be equipped with a constant temperature control system for the optical system when it is designed and manufactured. Even with a constant temperature control system, changes in the ambient temperature will still affect the optical system. Therefore, in order to ensure the accuracy and stability of the analytical data results, we should install small air conditioners in the laboratory to minimize the fluctuation of the ambient temperature during the use of the instrument.\nAt present, domestic and foreign OES manufacturers will require users to install small air conditioners in the places where the direct-reading spectrometer is used. So that the ambient temperature is controlled between 10 and 30 ℃. First of all, because the temperature of the instrument is about 20°C when it is calibrated by the original factory, and the instrument is used at 10~30°C to fully ensure the accuracy of the analysis results. Secondly, the optical system has higher stability in the range of 10~30℃, and the temperature is too high or too low to ensure the stability of the instrument, and the serious influence may even cause the instrument to malfunction.\nTherefore, in order to ensure the stability of the direct reading spectrometer and the accuracy of the analysis results, we should try our best to ensure that the temperature in the laboratory meets the requirements of the instrument, and try to keep the temperature as stable as possible.\nSubscribe free newsletter to get latest products and discount information.\nWuxi Jiebo Instrumentl Technology Co.,Ltd. is located in the city of Wuxi, Jiangsu Province, China. For many years, we engaged in the production, sales and customer service of chemical analysis instruments and related products. We not only have the advantages of scale of products and personalized service but also have the advantages in the process of technological innovation. The market share has been ranked counterparts and equipment exported to the Middle East, Africa, Southeast Asia, West Asia, Eastern Europe, South America and other countries.","domain":"optical_engineering"}
{"url":"https://www.hireuavpro.com/intels-realsense-technology-give-drones-sense-surroundings/","date":"2022-11-27T06:11:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710192.90/warc/CC-MAIN-20221127041342-20221127071342-00713.warc.gz","language_score":0.9037825465202332,"token_count":305,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__60752516","lang":"en","text":"Intel, coming from CES 2015 in Las Vegas, Nevada, has been updating everyone on RealSense Technology, a revolutionary technology that gives users a Natural User Interface (NUI) with their devices, and also could pave the way for making drones react to their surroundings by sensing and avoiding them as humans do.\n•Intel RealSense technology inside Robotics and Multi-copter drone: Intel demonstrated an iRobot® AVA® 500 video collaboration robot equipped with Intel RealSense cameras to support the platform’s autonomous navigation and obstacle avoidance technologies. In addition, Intel highlighted the growing possibilities for multi-copter drones, including the inspection of fields and power lines, delivering goods, and even monitoring endangered species. As these drones become smarter, they can see, react, and even move safely through the environment. During the CES keynote, Intel created a make-shift obstacle course inside the CES keynote ballroom and demonstrated a number of AscTec* Firefly multi-copter drones equipped with Intel RealSense cameras that provide 360-degree sensing and enabled with unique collision avoidance capabilities. Intel’s RealSense camera module, which weighs as little as 8 grams and is less than 4mm thick, brings depth perception to drones both indoors and outdoors with minimal impact to payload and flight times.\nCES 2015 continues to be a possible pioneer moment in the field of Drone technology, with the whole world now bearing witness to hundreds of start-up techs that could soon be items you can’t live without.","domain":"optical_engineering"}
{"url":"http://www.changhong.com.au/product_show.php?id=54","date":"2013-06-19T09:30:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708546926/warc/CC-MAIN-20130516124906-00030-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8062536716461182,"token_count":1003,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__90457790","lang":"en","text":"- About Changhong\n- Service & Support\n- Contact Us\n39\"/99cm Full HD LCD TV\n• Slim Deisgn • Full HD -1920×1080P\nLT39A3100, features Full HD 1920x1080P resolution, bringing you amazing picture quality! This model also has USB PVR recording function, which allows you to record live television onto a USB thumb drive or an external hard drive via the USB port. Standby power consumption is less than 0.5W, which helps energy efficiency. Warranty 24 months plus+labor.\n|Diagonal Screen Size||39\"|\n|Panel Resolution||1920 x 1080|\n|Peak Brightness (cd/m2)||430|\n|Dynamic Contrast Ratio||10,000:1|\n|Viewing Angle||178°(H)/ 178°(V)|\n|Response Time (ms)||8|\n|Digital Audio Output(Coaxial)||1|\n|VGA(D-sub 15 pin)||1|\n|Video System||PAL, DVB-T|\n|Video In||PAL, NTSC|\n|DTV USB Recording||Yes|\n|Picture Status Memory||Yes|\n|Colour Temp Adjustment||Yes|\n2 Years (Parts & Labor)\nB/G, D/K, I\nMax Audio Output\n2 x 8W\n|Energy Star Rating||5|\n|Power Requirement||AC 110~240V, 50/60|\n|DIMENSION & WEIGHT|\n|Set With Stand(WxHxD)mm||922x639x273|\n|Set Without Stand(WxHxD)mm||922x575x127|\n|Wall Mount Support||200x200mm Vesa Standard|\nNote: Design and specifications are subject to change without notice.\nHDTV (High-Definition Television)\nLiquid Crystal Display technology is one of the methods used to create flat-panel TVs, and is also used in some projectors. Light isn‘t created by the liquid crystals; a \"backlight\" behind the panel shines light through the display. The display consists of two polarizing transparent panels and a liquid crystal solution sandwiched in between. An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. Each crystal acts like a shutter, either allowing light to pass through or blocking the light. The pattern of transparent and dark crystals forms the image.\nPlasma technology is one of the methods used to create flat-panel TVs. The display consists of two transparent glass panels with a thin layer of pixels sandwiched in between (somewhere between 800,000 and two million). Each pixel is composed of three gas-filled cells or sub-pixels (one each for the red, green and blue primary colors). A grid of tiny electrodes applies an electric current to the individual cells, causing the gas to ionize. This ionized gas (plasma) emits high-frequency UV rays which stimulate the cells‘ phosphors, causing them to glow, which creates the TV image.\nAn LED is a semiconductor diode that typically emits a single wavelength of light when an electric current passes through it. Different colors can be generated based on the material used; common colors include red, green, blue, and white.\nBy adding a sense of picture depth and dimensionality, 3D TVs create a more engaging viewing experience that‘s similar to watching a 3D movie in a theater. Like 3D movies, 3D TV requires that each viewer wear special glasses to see the 3D effects.\n1080p is a high-definition video format with resolution of 1920 x 1080 pixels. The \"p\" stands for progressive scan, which means that each video frame is transmitted as a whole in a single sweep. The main advantage of 1080p TVs is that they can display all high-definition video formats without downconverting, which sacrifices some picture detail.\nSome LCD and LED-LCD HDTVs have 100Hz refresh rates; these TVs employ sophisticated video processing to double the standard rate to 100 frames per second by inserting either additional video frames or black frames. Because each video frame appears for only half the normal amount of time, on-screen motion looks smoother and more fluid, with less smearing. It‘s especially noticeable viewing fast-action sports and video games.\nHDMI has become the high-def connection of choice. It can carry full 1080p video and multichannel surround sound, and is your only connection option for 3D video.\n|Copyright @2000-2011 CHANGHONG Electric(Australia) PtyLtd||\nChanghong Customer Assistance Hotline: 1300 796 688 Tel: (03) 8545 7388","domain":"optical_engineering"}
{"url":"https://omenetto.chem.ufl.edu/research/","date":"2024-04-23T08:54:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818468.34/warc/CC-MAIN-20240423064231-20240423094231-00640.warc.gz","language_score":0.9147348999977112,"token_count":1571,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__190135943","lang":"en","text":"Lasers applied to atomic and molecular systems\nFundamental diagnostics of various spectral sources, including plasmas and pulsed glow discharges, are a main theme of our research. Here, lasers can be used merely as sampling devices to introduce the material into the discharge (e.g., laser ablation) or as additional excitation-ionization sources of the species already present in the discharge. A variety of spectroscopic and mathematic techniques are employed in our research. Plasma emission, laser induced fluorescence (both molecular and atomic), diode laser absorption, and Raman scatter experiments are conducted in the laboratory.\nStrong links exist between our research interests and those of Dr. Smith in Chemistry, Dr. Hahn in Mechanical and Aerospace Engineering, Prof. Panne and Prof. Niemax at BAM in Berlin, Germany, and the researchers at IPCF, CNR in Pisa, Italy. These links result in close, international collaborations.\nLasers applied to atomic and molecular systems\nIn Laser Induced Breakdown Spectroscopy (LIBS), the plasma formed evolves in space and time and its spectrum provides useful analytical information. For this purpose, the most interesting plasma diagnostics indicators are the electron temperature (Te) and the electron number density (ne), since one can relate these two parameters to the possible existence of local thermodynamic equilibrium (LTE) conditions in the plasma. Most studies in this field have been performed under the assumption of the existence of such LTE conditions. Few studies, however, have been devoted to the experimental evaluation of such assumption. One of the approaches that can be used for the evaluation of LTE condition is the Line-to-continuum intensity ratio method. Experimentally, the plasma excitation temperature, Texc, is obtained from a conventional Boltzmann plot, and the ratio between the spectrally integrated line intensity and the continuum intensity is measured. By inserting these two experimental values into the theoretical expression, one can check whether the electron temperature derived in this way is equal or different from the excitation temperature provided by the Boltzmann plot. Any deviation from LTE conditions can then be assessed.\nLIBS emission measurements are often affected by the phenomenon of self-absorption, i.e., the plama conditions are optically thick. It is important to take this effect into account for more accurate plasma characterization. The aim of the present work is to propose the application of a well know method, which is simple and quick to implement. It uses an external mirror to double the optical path length of the plasma emission in direction of the monochromator. The calculation of the so-called duplication factor as well as the comparison of the line profiles obtained with and without the mirror allow not only to prove the existence of the effect but also to apply a correction factor and to retrieve the original profile. It is shown in this work that the most direct application of the mirror approach is to improve the linearity of the calibration curves and the accuracy of the temperature evaluation though the Boltzmann or Saha-Boltzmann plots.\nApplications of High Repetition Rate, Solid State Lasers\nThis project focuses on time-resolved applications of microchip and powerchip lasers, a new class of Nd:YAG laser. These lasers produce ~500 ps pulses at repetition rates between one Hertz and several tens of thousands of Hertz. Previous work in our lab has used these lasers for laser-induced breakdown spectroscopy, where they yield good signal to background ratios in elemental analysis. We are studying the time evolution of the transient plasma at the center of this technique. We have recently collaborated with the German Federal Institute for Materials Research and Testing to study the plasmas produced by an even newer class of laser. We have also used powerchip Nd:YAG lasers for microanalysis, with an eye for using them for microscopic elemental mapping thanks to their high repetition rate. Because powerchip laser pulses are shorter than (or on the same order as) the fluorescence lifetime of many materials, we have used them to measure the fluorescence lifetime of different materials. Eventually, we hope to measure the fluorescence lifetime of micron-regime aerosol particles. The fast pulse and high repetition rate may also be useful for discriminating against fluorescence in Raman measurements.\nLaser Induced Plasma Mapping\nA fundamental understanding of the mechanisms that give rise to the formation and evolution of a laser-induced plasma encompasses considerable past and continued research. This project hopes to add to this knowledge by combining experimental observations with computer models of the evolution of a plasma plume. Space-resolved and time-resolved atomic and ionic populations will be experimentally evaluated, and these population densities will be used to refine the computer model of a plume expansion. Specifically, the evolution of the plasma volume is investigated using a combination of emission and laser-induced fluorescence (LIF) measurements.\nTo accomplish this goal, a LIBS-LIF set-up has been assembled consisting of an excimer laser pumping two dye lasers. The simultaneous availability of two excitation wavelengths allows reaching highly excited levels of the atomic (ionic) species selected and monitoring the resulting fluorescence emission originating either directly from the excited level or indirectly by nearby levels populated by energy transfer due to collisions in the plasma. Since it has been shown that time-resolved fluorescence measurements are essential for an accurate evaluation of the atomic populations, the fluorescence is measured by both an ICCD camera on a spectrograph and a Microchannel Plate Photomultiplier (MCP-PMT) on a monochromator. The ICCD gives spatial resolution within the plasma, and temporal resolution is achieved with a variable delay. Resolution within the excitation pulse itself is possible with the MCP-PMT.\nThe development of an electrodynamic balance used for Laser Induced Breakdown Spectroscopy (LIBS) studies and the operational characteristics of the set-up were refined in our lab in order to both recreate and expand upon experiments by Hahn in which a laser plasma is formed and particles are introduced into the plasma. Our experiment allows the particles to be spatially confined for long periods allowing for studies with laser energies producing fields below the air breakdown threshold. Initial results of experiments were promising and pointed us to further study the differences in laser-particle and plasma particle interactions, as the understanding of the overall processes governing plasma-particle interaction is considered to be essential for an improvement in the quantitative analysis of materials by the techniques of LIBS. These initial results came from data obtained using LIBS on particles containing Ca, Mg and Na and time integrated measurements. Work is now moving into temporally resolved studies to evaluate simultaneously the evolution of emissive species within the plasma volume.\nDiode Laser Absorption\nThe vast majority of spectroscopic analytes exist in the ground state. Accordingly, absorption techniques allow a researcher to probe the bulk of the analyte. However, the selectivity of the technique comes from the light source used to interrogate the analyte reservoir (in this case a plasma). Therefore, a tunable source is a must, leaving diode lasers and dye lasers. Dye lasers offer a much wider range of wavelengths, but increase the complexity and cost of a system. Additionally, the lasers used to pump the dye lasers, often gas lasers, have horrible noise in their pulse energies. Absorption measurements suffer greatly from noise in the reference light source. Diode lasers are much cheaper, simpler and more stable. This project focuses on the use of these diode lasers to probe atomic and ionic species within LIBS plasmas.","domain":"optical_engineering"}
{"url":"http://www.agisen.co.uk/pressure.html","date":"2022-08-11T14:43:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571472.69/warc/CC-MAIN-20220811133823-20220811163823-00304.warc.gz","language_score":0.9154810905456543,"token_count":441,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__9738955","lang":"en","text":"Ultra-miniature pressure sensors\nProvision of multiple point pressure measurements within a compliant material layer less than 2mm in thickness interposed between two rigid bodies under test. Modification of the structure was to be kept to a minimum with the deployment access to the sensing point locations being restricted to within the 2mm layer over a distance of several metres. Pressure sensing range: 0 to 2MPa. Minimum acceptable resolution: 2kPa.\nConstruction of a pressure sensor on the tip of a standard telecoms 125µm diameter silica optical fibre. The optical fibre having an overall diameter of 250µm, including primary buffer protective coating, was capable of being flexibly routed between the two rigid components without any modification of the system under test. An interferometric Fabry-Perot cavity was formed on the end of the optical fibre through using a hollow glass microspheres to form the cavity. Changes in pressure cause changes in the diameter of the microsphere which in turn result in pressure related changes in the optical path length of the Fabry-Perot cavity. These changes are then measured by monitoring the corresponding changes in the optical interference pattern produced by the optical cavity. The optical performance of the cavity was optimised by adjusting the optical reflectivity of the microsphere through the use of a gold coating.\nThe first image shows a sensor encapsulated in a thin (2mm) silicone layer, the second indicates the improvement in Fabry-Perot response that can be obtained by coating the transducer and the third is an image of the bare sensing element.\nThis fibre-based pressure sensing configuration has a number of advantages over conventional technologies:\n- The sensing element is extremely small. In some cases the limiting dimension being the optical fibre itself\n- The pressure range and resolution can be tuned by selecting suitable microsphere properties, sphere diameter and wall thickness.\n- Due to its extremely small thermal mass, transient pressure and temperature sensing are possible.\n- Can be easily designed to measure strain and temperature.\nIf you wish to find out more about this application of optical fibre sensing please contact Dr. Tim Litt.","domain":"optical_engineering"}
{"url":"https://www.wellcaredfor.net/products/sami-tabletop-infrared-light-optional","date":"2024-04-24T02:07:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818999.68/warc/CC-MAIN-20240424014618-20240424044618-00826.warc.gz","language_score":0.934821367263794,"token_count":137,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__49903005","lang":"en","text":"Provides additional strong illumination for the SAMi-3 camera improving image and motion detection performance in complete darkness.\nThis is not required as the SAMi-3 camera includes built in illuminators. However the addition of the infrared light allows you to turn off the SAMi-3 camera red lights (which are very dim but can bother some people) and eliminates extra recordings and alarms that can be caused by light reflections from dust in the air near the camera lens. Light sensor automatically turns the illuminator off during the day.\nSign up for our newsletter\nSign up for our mailing list to receive new product alerts, special offers, and coupon codes.","domain":"optical_engineering"}
{"url":"https://www.cintec.cuhk.edu.hk/seminars/?p=3245","date":"2022-10-04T10:27:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337490.6/warc/CC-MAIN-20221004085909-20221004115909-00599.warc.gz","language_score":0.9263822436332703,"token_count":179,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__153498959","lang":"en","text":"Prof. Hon Ki TSANG and Prof. Jian-Bin XU and their research team of the Department of Electronic Engineering at The Chinese University of Hong Kong (CUHK) have successfully constructed a new device for detecting light in the mid-infrared (mid-IR) spectral region. This groundbreaking work is expected to enable a new generation of high efficiency, low cost, and highly integrated mid-IR detectors which proceeds to the applications of mid-IR spectroscopy in environmental and biomedical engineering. The chemical spectroscopy can detect trace concentrations (parts per billion) of gases for enormous applications, such as air pollution monitoring and analysis of human breath for disease markers. The research results have been published today (16 September) in the latest issue of Nature Photonics. Meanwhile, the news column of Nature – Nature News and Nature Photonics published their technical commentaries by the top experts.","domain":"optical_engineering"}
{"url":"https://www.uoutdoors1.com/product-page/fresnel-lens-center-angle-model-9004","date":"2021-07-25T05:17:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151638.93/warc/CC-MAIN-20210725045638-20210725075638-00438.warc.gz","language_score":0.8463068008422852,"token_count":106,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__253644306","lang":"en","text":"We highly recommend installing these lenses in our Cuddeback cameras. In fact we install these lenses in every Cuddeback camera we sell before shipping them out to you!\nThe reason for switching is these lenses increase the detection range and sensitivity resulting in more pictures.\n- Cuddeback's Centered Subject Technology quickly centers your game within the frame\n- Commonly used in Cuddeback cameras that do not offer Zone Control technology\n- Fits J, G, and K Cuddeback Models","domain":"optical_engineering"}
{"url":"http://www.sonyalpha.info/0508-sal-1680z-dt-16-80mm-f35-45-zoom-specification/","date":"2022-05-16T19:16:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662512229.26/warc/CC-MAIN-20220516172745-20220516202745-00492.warc.gz","language_score":0.7345564365386963,"token_count":526,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__256165384","lang":"en","text":"Carl Zeiss Vario-Sonnar T* DT 16-80mm f/3.5-4.5 Zoom Lens\nThe SAL-1680Z is ultimate all-in-one zoom lens designed specifically for DSLR imaging. It’s the first professional-grade 5X zoom lens specifically designed for APS-size CCD image sensors?providing incredible precision in a single compact, easy-to-carry lens that carries you from 24mm wide-angle to 120mm telephoto (35mm equivalent). Advanced Carl Zeiss?optical design and anti-flare T* Coating make this one of the most valued lenses in the world of digital photography.\n5X Zoom Range\nSmaller and lighter, it’s the only 5X zoom lens designed specifically for the APS-size CCD imager used in the Sony? ± (alpha) DSLR-A100 camera.\nGlass-Molded Aspherical Lens Elements\nTwo glass-molded aspherical lens elements correct visual aberrations and improve picture quality across the entire zoom range.\nBecause aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.\nIn auto-focus mode, the manual focus ring does not rotate — and in manual focusing, a wider focus ring provides a solid, hands-on feel.\n- Focal Length : APS: 24 – 120mm (35mm Equivalent: 16\n- Filter Diameter : 62mm\n- Minimum Focus Distance : 1′ 2.4” (62mm)\n- Magnification : x 0.24\n- Lens Groups-Elements : 10 groups, 14 elements\n- Distance Scale : Yes\n- Distance Encoder : Yes\n- Non-rotating Focusing Ring : Yes\n- Aperture (Max.) : f/3.5 – 4.5\n- Aperture (Min.) : f/22 – 29\n- Blades : 7 aperture blades\n- Aspheric Elements : 2 aspheric\n- Lens Type : Standard Zoom\nWeights and Measurements\n- Weight (Approx.) : 16oz (445g)\n- Dimensions (Approx.) : 2 7/8 x 3 3/8” (72 x 83mm)\n- Front and rear lens cap\n- SH0005 petal lens hood\n- Lens carrying case","domain":"optical_engineering"}
{"url":"https://www.vuevision.ca/services/scleral-lenses.php","date":"2022-09-26T06:22:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334802.16/warc/CC-MAIN-20220926051040-20220926081040-00086.warc.gz","language_score":0.9309583902359009,"token_count":797,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__245608963","lang":"en","text":"- About Us\n- Advanced technology\n- Eye Health\n- Contact us\nAt Vue Vision Centre, we take pride in fitting complex corneas. Our highest rate of success for fitting Keratoconus and other irregular cornea patients has come with scleral lenses. These lenses give vision and comfort not possible with a conventional rigid lens or piggyback designs. We take topographical maps of the exact irregularities and then custom design a lens that provides the ideal correction. Because of the way these lenses are fit, they can optically correct the distortion from diseased corneas, providing stable vision in the majority of cases!\nScleral lenses are large diameter rigid lenses that sit on the white part of the eye and vault over the irregularities in the cornea. This enables them to provide good vision and excellent comfort. We are always on the leading edge of technological advancements and fit many different types of scleral lenses including multifocals. Scleral lenses can be customized for any type of prescription. Many patients who have never been able to see well with glasses get stable vision with sclerals. We also fit specialty gas permeable lenses such as Rose-K, piggyback and other post-surgical designs for mild to moderate cases.Scleral lenses are much larger than Conventional RGP Lenses which aids in stability on the eye and improved vision with irregular corneas. They also provide initial comfort on instillation similar to soft lenses.\nThere are three categories of scleral lenses, based on size and where the lenses have their primary contact with the front surface of the eye.\nMuch larger than typical GP lenses and rest right by the junction between the cornea and the sclera.\nVault over the whole corneal surface and rest on the anterior sclera.\nThe biggest in size and offer the most clearance between the back of the lens and the cornea.\nGenerally, anyone interested in achieving the best vision possible with contact lenses can be a candidate for scleral lenses. But scleral GP lenses are particularly helpful for the following:\nVision problems caused by an irregularly shaped cornea: whether naturally occurring, due to an eye condition such as keratoconus, or resulting from eye surgery: typically, cannot be fully corrected with glasses or soft contact lenses. Scleral lenses typically will provide sharper vision for these eyes.\nIf your eyes cannot be comfortably fitted with conventional GP lenses or the shape of your eye causes the lenses to dislodge too easily from your eyes (during sports, for example), scleral lenses can provide a more comfortable and secure fit.\nIf your eyes are too dry for conventional contact lenses, scleral lenses can help. In particular, the space created between the back surface of full scleral lenses and the cornea acts as a tear reservoir to keep the front of your eye moister and more comfortable.\nScleral lenses are custom-made to the exact specifications prescribed by our eye doctors to provide the best possible vision, eye health and comfort. Also, special automated measuring tools and imaging devices are used to fit scleral lenses, and these instruments typically are not required for fitting soft lenses. For these reasons, professional fees associated with fitting scleral lenses and lens replacement costs are much higher for scleral lenses than other contact lenses. Our doctors will discuss with you the specific costs for your individual needs. In some cases, vision insurance may cover a portion of the costs associated with scleral lenses.\nIf you have been fit with these lenses or would like to know more about whether you are a candidate for scleral lenses please contact us at 519-497-0309 and book a fitting consultation. It would be our privilege to improve your sight and quality of life with custom fitted scleral contact lenses.","domain":"optical_engineering"}
{"url":"https://jp.etoren.com/products/panasonic-leica-dg-summilux-25mm-f1-4-asph","date":"2019-06-18T02:52:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998605.33/warc/CC-MAIN-20190618023245-20190618045245-00044.warc.gz","language_score":0.9227334260940552,"token_count":186,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__54095426","lang":"en","text":"If you're looking for a standard lens, the Leica 25mm DG Summilux is a very good choice, giving you the quickest maximum aperture you can find on a lens designed for the Micro Four Thirds systems. The quality of the build is very good, as you can expect from that kind of price, and the fact that you can use filters on the lens is definitely a nice bonus. The focusing is also very fast and quiet, so you it can be used for videos and stills without a problem.\n- Lens Construction: 10 elements in 9 group ( 1 aspherical lens )\n- Mount: Four Thirds mount\n- Focal Length: f=25mm (35mm camera equivalent 50mm)\n- Aperture: F1.4\n- Closest Focusing Distance: 0.38m`\"ﾂ｡","domain":"optical_engineering"}
{"url":"https://optimus.be/index.php?lang=en&page=products&id=2&thema=bitumen&articleid=8495&bestelnr=II-1000C&toestel=II-1000C","date":"2019-09-17T11:13:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573070.36/warc/CC-MAIN-20190917101137-20190917123137-00263.warc.gz","language_score":0.8395191431045532,"token_count":300,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__21285131","lang":"en","text":"The PL-12DC Laser Penetrometer is automated device employing up-to-date laser penetration measurement technique. It enables precise measurement according to any given standard test method, and the user-defined method as well.\nIt is possible to transfer the test results to computer and to record them as files readable through spreadsheets. Operation of the unit takes place using touch screen with legible characters.\nThe penetrometer is designed for testing consistence of petrochemical products (e.g. lubricating greases, asphalts, parrafins), foodstuff (e.g. margarine), cosmetics (e.g. creams) as well as masonry mortars and plastic explosives.\nPN-C-04133:1988, PN-C-04161:1982, PN-EN 1426:2009, PN-EN 1015-4:2000, PN-V-04011-18:1999, ASTM D5, ASTM D217, ASTM D937, ASTM D1403, ASTM D1321.\nAutomated laser penetration measurement.\nPrecision: 0,1 penetration unit\n- Supply: 100-240 VAC, 50/60 Hz\n- Dimensions (H × W × D): 685 × 340 × 390 mm\n- Weight: 25 kg (with equipment)\n- Measurement range: 0 - 620 penetration units\n- Communication with computer: RS 232","domain":"optical_engineering"}
{"url":"https://isequalto.com/iet-app/ask-the-world/SOqt7188-Why-is-linear-magnification-in-a-spherical-mirror=(-i/o)?(pls-just-tell-me-why-it-is-negative)","date":"2022-01-22T01:30:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303729.69/warc/CC-MAIN-20220122012907-20220122042907-00115.warc.gz","language_score":0.9410737156867981,"token_count":291,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__111448472","lang":"en","text":"The linear magnification or magnification of a spherical mirror may be defined as the ratio of the size (height) of the image to the size (height) of the object. The magnification of a mirror is represented by the letter m.\nIn a concave mirror, the magnification is the ratio of the height of the image to the height of the object. The magnification is also equal to the negative of the ratio of the distance of the image from the mirror to the distance of the object from the mirror .\nAccording to the Cartesian sign convention, distances from the mirror towards the object are considered as negative and the distances from the mirror to the opposite side are considered as positive. Distances above the principal axis are considered as positive and distances below the principal axis are considered as negative.\nHence, if the image is real, the magnification is negative and if the image is virtual, the magnification is positive.\nTeacher • India\nbecause image formed in concave mirror is real also.\nGrade 12 • India\nDistances measured on the other side are negative. f, the focal length, is positive for a concave mirror, andnegative for a convex mirror. When the image distance is positive, the image is on the same side of the mirror as the object, and it is real and inverted. ...\nGrade 10 • India\nMore interesting questions for you\nAsk The World\nQuestions and Answers from students around the world","domain":"optical_engineering"}
{"url":"http://travisdbvo777.uzblog.net/2-concerns-individuals-do-certainly-not-understand-referring-to-lasik-eye-surgery-5526573","date":"2018-12-11T00:55:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823516.50/warc/CC-MAIN-20181210233803-20181211015303-00417.warc.gz","language_score":0.9551659822463989,"token_count":889,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__244536847","lang":"en","text":"2 Concerns Individuals Do Certainly Not Understand Referring To LASIK Eye SurgeryThe eye can be examined with relative ease as to both its function and its structure. A functional examination consists of the capability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye might be tested in several methods. The patient might be asked to identify illuminated letter or items of differing sizes on what is called the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye may be made in several methods. Tension within the eyeball is determined by a \"tonometer.\" In particular diseases, especially in glaucoma, the stress in the eyeball is increased noticeably.\nIt should be well kept in mind that a patient with an eye issue might have other issues. Frequently other physical conditions are main and affect the eye as a consequence. The look of the eye can signal the client and the doctor to difficulties in some disruptions of other parts of the body even prior to other symptoms present themselves.\nOne's dependence on sight is stressed when one deals with a short-lived or possible irreversible loss of this crucial sense. Hence, when restorative steps are sought, certain kinds of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are troubled with the fact that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgery is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another type of vision correction. The only distinction is that with this kind of surgery, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose why not check here of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade understood as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people must know. Most likely, the primary reason that this type of eye surgery has actually ended up being well accepted is since the majority of its cases had actually succeeded.\nNevertheless, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nDue to the fact that LASIK eye surgical treatment includes the operation of the retina, which is one of the most sensitive portions of the eye, many people state that the operation can be very dangerous.\nTo puts it simply, a simple error could nearly cause an individual's lifetime loss of sight. It is important to think about look at here now numerous elements before deciding whether LASIK eye surgery is the right restorative procedure one has to undergo.\n2. It is not a best treatment\nLASIK eye surgery might fix your vision but it does not necessarily mean that it can offer you a ideal vision. Even if analytical reports show that 70% of the clients may have 20/20 vision, this does not necessarily mean they have perfect vision too.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the ideal eye surgical treatment the way the majority of people view it\nConversely, the assessment of the structural part of the eye may be made in a number of ways. It should be well remembered that a client with click for source an eye problem may have other problems. Typically other physical conditions are primary and impact the eye as a consequence. The look of the eye can notify the doctor and the patient to problems in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://shineinfo.co.kr/sub/p01_01.php?sNum=0&pmode=view&idx=158&cat_no=164","date":"2023-10-05T01:39:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511717.69/warc/CC-MAIN-20231005012006-20231005042006-00120.warc.gz","language_score":0.7865713238716125,"token_count":621,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__322090518","lang":"en","text":"The BOSA is a stimulated Brillouin scattering based optical spectrum analyzer.\nBOSA 100 + T100S-HP\nhas partnered with Aragon Photonics Labs to offer its customers an excellent Hi-Res OSA that perfectly combines with its T100S-HP\nlasers, both having the highest dynamic range available on the market. In the set-up, the BOSA 100 operates with Yenista’s tunable laser through GPIB and a Trigger.\nAnalysis of Modulation Formats and Laser Lines\nThe Hi-Res OSA is well suited for analysis of complex modulation formats such as PAM4 for datacenters and PolMux QAM and PSK for Metro & Long-Haul Coherent Systems. Extension options are available for polarization analysis and phase measurements. The Hi-Res OSA is also well adapted to the characterization of laser devices such as accurate distance between side modes, SMSR and chirp.\nO- and CL-band models\nWavelength resolution: 10 MHz\nWavelength accuracy: 2 pm\nDynamic range: 80 dB spurious-free\nOther BOSA models\nThe BOSA 400 is equivalent to the BOSA 100 with respect to specifications, but it is fully standalone. The tunable laser is integrated in the BOSA benchtop which limits the number of options that can be integrated.\n- BOSA 400 Brochure\nBOSA Lite and BOSA Lite+ are cost effective Hi-Res OSAs. The specifications are slightly reduced compared to BOSA100 and BOSA400\n- BOSA Lite & Lite+ Brochure\nBOSA 100 mainspecifications\nC band 1525 ?1565 nm\nL band 1565 ?1607 nm\nO band 1265 ?1355 nm\nOptical Resolution : 10 MHz\nYenistalasers : C, L Band : T100S-HP/CL/M, T100S-HP/SCL/M, T100S-HP/CLU/M\nO Band : T100S-HP/O/M, T100S-HP/O+/M\nWavelength Accuracy : Typ±2 pm withYenistaT100S-HP\nSpurious free Dynamic Range2 : >80 dB\nCalibrated Input Power Range : +13 to -70 dBm\nClose-in Dynamic range : >40 dB @ ±0.3pm >60 dB @ ±0.6pm\nMax. SafeInput Power : +20dBm\nSensitivity : -70dBm/0.1pm\nPoweraccuracy : ±0.5dB\nPolarization Measurement : Two orthogonal polarization channels., Full state-of-polarizationwith polarimetry extension\nMeasurement time : 1 sec. for 20 nm(C, L) , 1 sec. for 10 nm (O)","domain":"optical_engineering"}
{"url":"https://smallcub.com/product/zyxel-sfp-10g-long-range-sfp-transceiver-duplex-lc-connector-1310nm-wavelength/","date":"2018-05-21T03:04:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794863923.6/warc/CC-MAIN-20180521023747-20180521043747-00513.warc.gz","language_score":0.9190187454223633,"token_count":191,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__177838786","lang":"en","text":"The ZyXEL transceiver family follows industry standards to assure compatibility with switches from other manufacturers without barrier set by proprietary technologies. With ZyXEL’s comprehensive Fast, Gigabit and 10 Gigabit transceiver product range, users can just plug the proper model onto the network to extend the physical coverage. Independent transceiver design provides the highest network maintenance flexibility. Transceivers can be freely added when required, and infrastructure upgrades or transceiver repairs can be done easily by just replacing the transceiver instead of the whole device. Traditional fiber optic networking requires two strands of fiber to accomplish communications, in which one strand is reserved for sending signals, while the other is for receiving. On the other hand, bi-directional, dual-wavelength transceivers can establish communications over just one strand of fiber by using two separate optical wavelengths: one receives and the other transmits signals. Transmission capacity can be expanded immediately without additional cost laying new fiber.","domain":"optical_engineering"}
{"url":"https://vinskiputevisrbije.com/product/range-finders-for-hunting","date":"2020-01-18T18:21:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250593295.11/warc/CC-MAIN-20200118164132-20200118192132-00207.warc.gz","language_score":0.8486234545707703,"token_count":3535,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__48037454","lang":"en","text":"TecTecTec ProWild Hunting Rangefinder - 6x24 Laser Range Finder for Hunting with Speed, Scan and Normal Measurements (Camo)\nHUNTING LASER RANGEFINDER: SUPER ACCURATE RANGE MEASUREMENT FOR PERFECT HUNTING!\nDo you love hunting, and would like a premium rangefinder?\nIf so, TecTecTec's PROWILD Laser Rangefinder is the perfect, ultra accurate rangefinder for you! Providing super accurate laser range measurement within /- 1 yard, up to 500 meters with 6x magnification and ultra clear, industry leading optical performance, our Laser Rangefinder combines reliable, fingertip operation with a lightweight, compact design, measuring 104 x 72 x 41 mm and weighing just 185g, perfect for carrying without weight or bulk!\nOur PROWILD Rangefinder is a premium product, with a number of key features:\n- Ultra fast, accurate measurement to 500 meters/540 yards with /-1 yard accuracy.\n- Lightweight, compact and ergonomic with water and dust resistant body.\n- Continuous measurement mode and speed measurement technology.\n- Ultra clear optics with easy read, through the lens display.\n- Includes Rangefinder, pouch, Free Battery, cleaning cloth and carry strap. 1 Year Manufacturer Warranty\nTecTecTec! stands behind all of its products and we want you to be happy! If for any reason you are not completely satisfied, take advantage of our 100 money-back guarantee.\nClick \"Add to Cart\" now!\n- HUNTING LASER RANGEFINDER; tired of cheap rangefinders with short ranges of measurement? Our PROWILD Laser Rangefinder is a premium product, measuring up to 540 yards with continuous scan mode, advanced speed technology, and a durable, water resistant body!\n- SPEED, SCAN and HUNT TECHNOLOGY: provides fast measurement with /- 1 yard accuracy\n- THROUGH THE LENS DISPLAY; premium, ultra clear, multilayered optics with easy read, through the lens display with distance and battery meter, and continuous measurement mode for fast, convenient measurements!\n- INCLUDES CASE AND LANYARD; complete rangefinder package for quick setup, including carrying pouch, Free CR2 battery, strap, microfiber cleaning cloth and quick start guide! 1 Year Warranty & TecTecTec Happy Customer Guarantee!\n- LIGHTWEIGHT AND PORTABLE; (Eye-safe rangefinder Class 1 laser with <0.5mW average power output) measures just 104 x 72 x 41 mm and weighing just 185g, with a water and dust resistant, durable body, perfect for carrying while hunting, or for measuring and surveying without extra weight or bulk!\nVortex Optics Ranger 1800 Laser Rangefinder\nDon't let the size of the Vortex Ranger 1800 Laser Rangefinder fool you. Vortex presents a new line of rangefinders that can range targets up to 1800 yards. The Vortex Ranger 1800 Laser Rangefinder has a range up to 1,800 yards and is perfect for hunters and shooters to complete accurate shots. Its many features paired with its affordability puts this range finder in a class of its own. Vortex Ranger 1800 Laser Rangefinder features an easy to read display, fully multi-coated lenses, and provides high level performance. For a great way to get the most beneficial range device that is perfectly suited for your needs, select the Vortex Ranger 1800 Laser Rangefinder\n- The Ranger 1800 rangefinder is easy to use and features a clean, illuminated display and highly intuitive menu. The Ranger 1800 is capable of ranging up to 1,800 yards.\n- The primary HCD mode displays an angle compensated distance that is ideal for the majority of hunters and shooters. An advanced LOS mode provides you the option to calculate long distance, high angle shots with increased precision.\n- A scan feature gives continuous range readings as you pan across a landscape or track a moving target. Three brightness settings allow the display to stay visible in various light conditions.\n- Fully multi-coated lenses deliver optimal light transmission. Textured rubber armor provides a secure, non-slip grip. Water and fogproof performance keep the system operating in the harshest conditions.\n- The included neck lanyard and removable utility clip make the Ranger easy to pack and keep handy.\nNikon 8397 ACULON AL11 Laser Rangefinder\nNikons ACULON Rangefinder\nNikon is the world leader in optics and is on the cutting edge of laser rangefinder technology. The new ACULON Rangefinder delivers world-class performance in an extremely compact body. Nowhere else will you find the speed, the precision and the optical quality of the palm-sized ACULON.\nIf smaller means better, then the ACULON Rangefinder is at the top of its class. With its ultra-compact size (3.6x2.9x1.5), this new rangefinder redefines portability and is small enough to rival most smartphones. Its palm-sized dimensions make it comfortable to wear around your neck or fit in your pocket. And because it weighs just 4.4 ounces (without batteries), the ACULON Rangefinder is so light youll hardly even notice its there.\nOperating the ACULON Rangefinder is intuitive and requires just the simple push of a button to get an instant distance reading. When the button is held down, the rangefinder gives a continuous measurement for up to 20 seconds as you scroll across the visible area. The display is uncluttered and free of any unnecessary obstructions so you can concentrate on the object youre ranging. The ACULON Rangefinder automatically powers down after eight seconds of inactivity.\nDistant Target Priority Mode\nThe ACULON Rangefinder is programmed in Distant Target Priority Mode meaning that it will display the range of the furthest target amongst a group of targets measured. This is particularly useful if the object being measured is partially obscured by grass or brush.\nNikons Quality Optics\nThe ACULON Rangefinder has 6x magnification and a 20mm objective lens. It features long eye relief (16.7 mm) and is engineered using Nikons multilayer coated optics, which provide an even higher light transmittance across the entire visible light spectrum. This minimizes the loss of light due to reflection, thereby ensuring a more natural, clearer view.\nSpeed is a virtue in which the ACULON Rangefinder excels. As soon as you push the button, it delivers an accurate reading from six yards all the way out to 550 yards. Measurements are easy to read and are displayed in 1 yard/meter increments. When seconds count, youll have an instant reading with a precision that you can rely on.\nACULON Rangefinder Features\n- Displays in 1-yard Increments\n- Multilayer Coated Optics\n- True 550-yard Ranging Capability\n- Easy-to-View Uncluttered LCD Display\n- Long Eye Relief\n- Distant Target Priority Mode\n- Single Button Operation\n- Ultra-Compact Size\n- Water Resistant/Rainproof\n- At 3.6\"x2.9\"x1.5\" in size, the ACULON Rangefinder is Nikon's most compact laser rangefinder, making it easy to take along wherever you go\n- An uncluttered, easy-to-read screen displays ranges in 1-meter/yard intervals;Eye Relief :18 mm\n- Class 1 laser product, power output not exceeding .0975 milliwats\n- Measurement Range 6-550 yds.Use:Gun hunting,bow hunting,target shooting\nBushnell 202208 Bone Collector Edition 4x Laser Rangefinder, Realtree Xtra Camo, 20mm\nThe bone collector laser rangefinder includes an in-view LCD display that provides the exact distance to your target from 10 to 600 yards with the tap of a single button. The 4x magnification and bright, crystal-clear optics bring you nose to nose with your next trophy. Its efficient, compact, vertical design and weather-resistant housing provide an make it durable and easy to carry. Accuracy is /- 1 yard.\n- Accuracy: /- one yard\n- Simple one-button operation\n- Magnification x objective: 4x 21mm\n- Weather resistant housing\n- Case is included\n- Class 1 laser with <1mW average power output\nLaserWorks Long Distance 1200 Yards Hunting Rangefinder - Horizontal Distance, Speed, Scan Laser Range Finder\n7Mode:\"ranging\", \"flagpole lock\",\"Golf distance correction\", \"fog\"\"Horizontal distance measurement\",\"Vertical height measurement\" and \"speed\" modes,\n21mm Objective Lens\n6x Magnification Power\n18mm Pupil Distance\nPrecision To /-1 M\nMin range: 5M\n3V Battery (CR2)\n3V CR2 Batteries x1\nStorage Bag x1\nUser manual x1\n- Built specifically for hunters, the S7 Laser Rangefinder 1200 Yards is reliable for tough hunting environments with water resistant durable non-slip grip rubber housing.\n- S7 hunting rangefinder response quick and accurate from 5 to 1200 yards, accuracy /- 1 yard, capable of angle compensated horizontal distance mode, line of sight mode & continuous scan quick readings on different objects or tracking a moving target.\n- S7 also offers golf pinseeking scan mode and slope compensation. With S7, owners can use it for hunting and golf, no need to buy extra.\n- Power/measure button and Mode button located differently, no mistake of pressing wrong button any more. Fully multicoated optics effectively reduces reflected light and increases the transmission of tight giving you a brighter clear image; diopter adjustable for precise focus on display.\n- Class 1 laser 905nm, 12 months LaserWorks quality warranty\nLeupold RX-1300i TBR Laser Rangefinder with DNA, Black/Gray\nPerformance, versatility, and reliability all come together in the RX-1300i TBR range finder. Its 1/2 yard accuracy out to 1,300 yards and True Ballistic Range (TBR) out to 800 yards means you'll have the tool you need to be successful in almost any environment. This range finder delivers superior brightness and resolution and also features our unique Trophy Scale, so you can easily gauge an animal's size while you're ranging it to make sure it's a shooter. And at only 7 ounces, the benefits far outweigh the weight.\n- Weight: 7 oz/198 g\n- Linear FOV (ft/1000 yd): 315\n- Linear FOV (m/1000 m): 105\n- Twilight Factor: 12\n- Length: 102 mm\n- Eye Relief: 14 mm\n- Angular FOV (degrees): 6\n- Width: 36 mm/1.3 in\n- Height: 64 mm/2.5 in\n- Exit Pupil: 3.9 mm\n- Min Range: 6 yd\n- Measuring Accuracy at Under 100 Yards (/-YDS): .5\n- Max Range - Reflective: 1300 yd\n- Max Range - Trees: 1000 yd\n- Max Range - Deer: 900 yd\n- 6x magnification\n- Fully multi-coated lens system\n- High light transmission LCD\n- DNA (Digitally eNhanced Accuracy)\n- Armor coated and rugged\nVortex Optics Impact 850 Yard Laser Rangefinder\nSimply put, with the high-performing Impact 850 and its economical price tag, you dont have an excuse to head afield without a laser rangefinder. Accurately ranges reflective targets to 850 yards, providing critical distance readings hunters and shooters can rely on. Range targets down to 10 yards when things get up close and personal. 6X magnification brings subjects in for a closer look and more accurate ranging. Fully multi-coated optics enhance light transmission for optimal performance in low-light settings. Provides angle-compensated HCD (Horizontal Component Distance) and LOS (Line of Sight) readings to match user preference. Can be set to read in yards or meters. The black LCD display boldly stands off against subjects during the moment of truth and a fast readout ensures you get the range in time to capitalize on the opportunity.\n- The Impact Rangefinder features a non-illuminated display and highly intuitive menu in a compact and lightweight package. Added magnification brings targets in for a closer look and more accurate ranging.\n- The primary HCD mode displays an angle compensated distance that is ideal for the majority of hunters and shooters. An advanced LOS mode provides the option to calculate long distance, high angle shots with increased precision.\n- A scan feature gives continuous range readings to pan across a landscape or track a moving target. All modes can be set to read in yards or meters.\n- The Impact runs on a common CR2 battery and the battery life indicator is always visible in the display.\n- Fully multi-coated optics enhance light transmission in low light settings. Waterproof and shockproof performance keep you in the hunt no matter what the conditions.\nSig Sauer 4x20 KILO1200 Laser Rangefinder (Black, Class 3R)\nThe KILO1200 is one of the most advanced, yet simple to use rangefinder on the market and features the fastest, digital signal processing engine while streamlining the user interface for a no hassle, out of the box experience.\n- SpectraCoat anti-reflection coatings for superior light transmission and optical clarity\n- Revolutionary Lightwave DSP technology for the fastest and longest distance rangefinder engine\n- HyperScan provides 4 range updates per second in scan mode while RangeLock reports the last range result when ranging distant targets\n- Units of measure in yards or meters\n- High Transmittance LCD display for superior low-light operation\n- Compact, lightweight polymer housing with diopter adjustment\n- Simplified user interface with RANGE and MODE buttons only\n- Sleek design for one handed operation and lanyard attachment points\n- Color: Black\n- Height: 2.9\"\n- Length: 3.9\"\n- Width: 1.4\"\n- Weight: 5 oz.\n- Magnification: 4\n- Lens Coating: SpectraCoat\n- Battery Type: CR2\n- Eye Relief: 24 Millimeter\n- Exit Pupil Diameter: 5 Millimeter\n- Angle Compensation: Yes\n- Reflective Target: 1600 Yards\n- Nonreflective Target: 600 Yards\n- Field of View At 100 Yards: 45.53'\n- 1600-Yard Max Measurement Range\n- 4x20 Monocular\n- Class 3R Laser\n- Inclinometer with AMR Ranging System\n- SpectraCoat Fully Multi-Coated Optics - Armored Polymor Housing\nUpland Optics Perception 1000 Laser Rangefinder\nBuilt specifically for hunters, the Perception 1000 laser rangefinder is tough enough to survive even the most extreme hunting environments. It will give you accurate range readings out to 1000 yards, helping you take more accurate, ethical shots. With a 6x zoom it will allow you focus perfectly on your target, but it's small 17mm objective lens makes sure it is light enough to carry deep into the backcountry without feeling any burden.\n- Water and weather resistant\n- Accurate out to 1000 yards\n- 6x zoom, 17mm objective lens\n- Accurate to within 1 yard\n- Second priority reading mode, ideal for use even in thick vegetation\nWosports Hunting Range Finder, Archery Rangefinder for Bow Hunting with Flagpole Lock - Ranging - Speed and Scan\nMode Change: Press the \" \" button to change measuring mode between the fellowing MODES:\nUnit Change: Long press \" M \" button to change units between M or YD.\nField of view: 7 degree\nObjective Lens: 25mm\nEyepiece lens: 16mm\nExit Pupil Diameter: 3.9mm\nLaser Type: 905nm\nLens Coatings: Fully Multi-Coated (FMC)\nMeasuring Time: 0.5-1 sec\nPinseeker Range:5M-100M350M (Depends on Max Range)\n- Multi Functions: Laser Range Finder for golf and hunting sports, with Distance Measue, Normally Scan Mode,Flag-Lock,Speed functions.\n- Golf Mode: accurately ranges from 5 to 650 yards and 150 yards to a flag lock. if you used on M2 Mode, Flag pole locking up to 150 yards.\n- Scan Mode: Hold down \"Power/Start\" button while ranging to activate the continous measurement scan mode.The data on the LCD will change as your move.\n- Rain and fog weather will affect the laser raypath,which may cause measurement error.when the weather is very adverse it may cause the measurement mistakes.\n- Wosports Happy Guarantee: 1-Year Warranty and Lifetime customer support.","domain":"optical_engineering"}
{"url":"http://www.most.gov.cn/eng/pressroom/200704/t20070429_43471.htm","date":"2013-05-21T13:21:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368700014987/warc/CC-MAIN-20130516102654-00060-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9580754637718201,"token_count":135,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__76542623","lang":"en","text":"In order to promote China-Russia cooperation in the field of laser technology and industry and work with the 2007 Year of China in Russia, a delegation organized jointly by the Department of International Cooperation of MOST and Hubei Provincial S&T Department went to Russia to participate in the International Photonics in Moscow on 12-22 March 2007.\nOn 15 March, China and Russia jointly hosted the China-Russia Talks on Cooperation in Laser Technology and Industry. More than 60 experts attended the talks. They examined the issues of policy environment for the laser industry and prospects of China-Russia cooperation in laser industry. Representatives from laser enterprises also publicized and promoted their own technologies and products.","domain":"optical_engineering"}
{"url":"https://www.magtop.com/what-is-an-electronic-current-transformer.html","date":"2023-03-28T07:57:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948817.15/warc/CC-MAIN-20230328073515-20230328103515-00050.warc.gz","language_score":0.925742506980896,"token_count":261,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__160741661","lang":"en","text":"Optical current transformers. It refers to the use of optical devices as the current sensor to be measured, and the optical devices are composed of optical glass, all-fiber, etc. Optical fiber is used in the transmission system,\nand the output voltage is proportional to the measured current. According to the physical characteristics of the light wave modulated by the measured current,\nthe light wave modulation can be divided into intensity modulation, wavelength modulation, phase modulation and polarization modulation.\nElectronic current transformers usually have higher bandwidth and are suitable for fundamental and harmonic measurements of currents with high harmonic content. In order to measure the power accurately, a voltage and current combined electronic transformer can also be used, because the combined electronic transformer can better control the phase difference of the voltage and current signals and improve the accuracy of power measurement.\nLarge dynamic range, high measurement accuracy and wide frequency response range. When the power grid is in normal operation, the current flowing through the current transformer is not large, but the short-circuit current is generally large, and with the increase of the power grid capacity, the short-circuit current is getting larger and larger. Unconventional transformers have a wide dynamic range, which can meet the needs of measurement and relay protection at the same time","domain":"optical_engineering"}
{"url":"https://animalpassion.org/best-bird-watching-equipment/","date":"2023-12-04T00:06:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100518.73/warc/CC-MAIN-20231203225036-20231204015036-00114.warc.gz","language_score":0.8702637553215027,"token_count":361,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__289512244","lang":"en","text":"Imagine yourself immersed in a vibrant tapestry of fluttering wings and melodic calls. To fully embrace the enchantment of bird watching, you need the best equipment at your side.\nFrom binoculars that bring distant beauties into sharp focus, to a spotting scope that unveils nature’s hidden details, this article explores the essential gear for your avian adventures.\nWith a camera and telephoto lens to capture fleeting moments, a field guide to identify every feathered friend, and other indispensable tools, prepare to embark on an intimate journey with the magnificent world of birds.\n- Binoculars are essential for bird-watching, with the right magnification and lens diameter being important factors to consider.\n- Spotting scopes offer enhanced magnification and precision, making them ideal for observing elusive or distant birds.\n- Cameras and telephoto lenses are popular for bird photography, with options ranging from entry-level to professional-grade equipment.\n- A field guide is a valuable tool for identifying birds based on their physical characteristics, range, habitat, and behavior.\nIf you’re serious about birdwatching, you’ll need a pair of binoculars. Choosing the right magnification, lens diameter, and weight for your binoculars is crucial for an optimal birdwatching experience.\nWhen it comes to magnification, a range between 8x and 10x is recommended. Higher magnification can make it harder to stabilize the image, especially if you plan on using them without a tripod.\nThe lens diameter also plays a significant role in determining the quality of your birdwatching experience. A larger lens diameter allows more light to enter the binoculars, resulting in brighter images. For birdwatching purposes, a lens diameter ranging from 40mm to 50mm is ideal.","domain":"optical_engineering"}
{"url":"https://www.generaltech.ae/brands/brand_details/raytek","date":"2023-11-29T12:40:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100081.47/warc/CC-MAIN-20231129105306-20231129135306-00316.warc.gz","language_score":0.8286424279212952,"token_count":282,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__182522153","lang":"en","text":"Founded in 1963, Raytek has grown its expertise in the manufacturing of temperature measurement instruments designed for process control, industrial and maintenance applications.\nWith product offering including:\n- Fixed thermal imagers\n- Comes in two ranges-40 to 500°C (-40 to 932ºF) and 200 to 2000°C (392 to 3632ºF).\n- Fixed infrared sensors\n- Sensors for applications with temperatures of -40 to 3000ºC / -40 to 5432ºF\n- Infrared line scanners\n- Real-time imaging of processes covering temperatures 20 to 1200°C\n- Infrared process imaging systems\n- Products designed for usage in glass manufacturing, rotating kiln shells, extrusion systems and thermoforming systems\n- Portable infrared thermometers\n- Covering temperatures between 400–3000°C\n- MT Series Portable IR Thermometers\n- ST Series Automotive Handheld\n- 3I PLUS Series High Temperature IR Thermometers\n- ST Series Industrial IR Thermometers\n- CI Series Compact Infrared Sensors\n- CM Series Compact Infrared Sensors\n- GP Series Infrared Systems\n- MI3 Series Digital Pyrometers\n- Thermalert 4.0 Series Infrared Sensors\nRaytek has a solution for all your temperature requirements and monitoring applications. General tech services is the authorized distributor for Raytek in UAE.","domain":"optical_engineering"}
{"url":"https://www.coppersfp.com/","date":"2024-04-22T22:21:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818374.84/warc/CC-MAIN-20240422211055-20240423001055-00327.warc.gz","language_score":0.8836355805397034,"token_count":1182,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__108964531","lang":"en","text":"China fiber optic Factory\nCopper SFP Transceivers\nCopper SFP Manufacturer, Direct Sales from Factory\nDATA CENTER CABLING\nfiber to the home\nfiber to the antenna\n10G SFP Copper module\n1000BASE-T Copper SFP\n10GBase Ethernet Introduction\nChoosing Between 10GBASE-T and SFP+\nHuihongfiber’s Copper SFPs currently have two types: Copper SFPs and SFP+ Copper SFPs.\nCopper SFP: According to different transmission rates, it can also be divided into 100M Copper SFP, Gigabit Copper SFP and self-adaptive Copper SFP. The gigabit optical module integrated on the CMOS chip can be used for high-speed Ethernet and Gigabit Ethernet. Different from other Copper SFPs, this Copper SFP is more innovative in speed and can meet various needs.\nSFP+ Copper SFP: also known as 10 Gigabit Copper SFP, the rate is 10G, designed for high-speed communication links, mainly used in 10 Gigabit Ethernet, and its power consumption is also very small. In addition, the SFP+ Copper SFP is the first 10G optical module that transmits through a network cable. It can be used in the SFP+ port of a switch or a network card to realize the connection with a network device with an RJ45 interface.\nThe maximum transmission distance of the 10GBASE-T SFP+ RJ45 Copper SFP on the Cat6a/7 network cable is 100 meters. Compared with the embedded 10GBASE-T RJ45 port, each port saves at least 0.5W of power. It is the first module that can provide 10Gb/s rate through Ethernet copper cable (network cable), and this module complies with SFF-8431 and SFF-8432 MSA standards. In addition, compared with 10GBASE-T fixed port electrical port switches, 10GBASE-T SFP+ Copper SFPs can work on existing SFP+ ports, providing greater flexibility for their applications.\nThe typical features of 10GBASE-T SFP+ Copper SFP are as follows:\nDimensions: Interoperable with any rack system with SFP+ ports.\nPerformance: Using the PHY standard, data can be transmitted error-free over copper cables using block encoding.\nInnovation: Support manageable hot-plug function.\nAuto-negotiated backward compatibility: It can be compatible with previous generation 10/100/1000BASE-T networks for seamless migration to 10Gb Ethernet.\n10GBASE-T SFP+ Copper SFP, 10G DAC high-speed cable and 10G SFP+ optical module are the main solutions for 10G Ethernet. However, with cheap SFP+ DAC high-speed cables and SFP+ optical modules that can be used for 10G Ethernet, why do we need 10Gb SFP+ Copper SFPs?\nFirst of all, the RJ45 ports on the switch are used to connect to the network cable, but the few RJ45 ports on the switch are not enough to meet the needs of copper cabling in the data center. In this case, the 10GBASE-T SFP+ Copper SFP can convert the optical port into an electrical port to meet the shortage of RJ45 ports on the switch.\nSecondly, in data centers and enterprise networks, the length of most links is between 10m and 100m, and the 10GBASE-T SFP+ Copper SFP can provide 10Gb/s data transmission within a distance of 100 meters, which is very good It makes up for the limitation that the SFP+ DAC high-speed cable can only transmit 10 meters.\nFinally, 10GBASE-T Copper SFPs can be backward compatible with 10/100/1000BASE-T optical modules, thus saving a lot of budget for data center networks. When connecting the 10G optical module to the copper cable network, the 10GBASE-T Copper SFP can be directly added to the copper cable network, while the 10G SFP+ optical module needs to be used together with the fiber optic transceiver to realize this application, so 10GBASE-T T SFP+ copper module has advantages over SFP+ optical module solution, because the cost of copper cable infrastructure is much lower than that of optical fiber.\nHuihong Technologies makes both 10Gbase-T copper SFP+ and 10/100/1000Base copper SFP, factory price, super quality and fast delivery.\nThank you for your inquiry\nAt present, the link distance between devices in most data centers is between 10m and 100m, and the use of 10G SFP+ Copper SFP can make up for the lack of transmission distance of SFP+ high-speed cables. The 10G SFP+ Copper SFP adopts the RJ45 interface and is used together with the super six or seven network cables, and the cost of copper cable wiring is lower than that of optical cable wiring. The 10G SFP+ Copper SFP can be directly used in the existing copper cable wiring system to achieve 10G transmission, while using the SFP+ optical module requires wiring with optical cables, which will increase deployment costs. If you want to use SFP+ optical modules in the existing copper cabling system, you need to add devices such as Ethernet switches or photoelectric converters. 10G SFP+ electrical port module is a cost-saving 10G connection solution, huihongfiber makes Gigabit and 10 Gigabit electrical port modules, compatible with Cisco, Huawei and other switches.","domain":"optical_engineering"}
{"url":"http://hdtv.videotechnology.com/HDTV-CMOSvsCCD.htm","date":"2020-02-27T02:01:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146643.49/warc/CC-MAIN-20200227002351-20200227032351-00433.warc.gz","language_score":0.9141044616699219,"token_count":2416,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__132644909","lang":"en","text":"RETURN to HDTV.videotechnology.com\nCAMERAS AND SENSORS: BACKSTAGE\nNearly all broadcast cameras today use CCD sensors to produce video and emerging electronic cinema. Unfortunately, as broadcast technology expands its resolution from NTSC and PAL to HDTV at the necessary frame rates, the S/N ratio of CCD-based cameras degrades ~3 dB per octave. For example, broadcast camera S/N ratio under standard illumination of 2000 lux at f/8 is at least 62 dB for NTSC (700x520), but degrades to 54 dB for HDTV (1920x1080). Prototype UHDTV (~4000x2000) cameras, which are otherwise attractive for electronic cinema, have SNR <45 dB, which is on a par with the best VHS video.\nFortunately, two fiercely competitive factors are resulting in a superior alternative to CCDs, which have enjoyed nearly 20 years as the preeminent sensor technology for video. First, the CMOS integrated circuit technology used for memory and microprocessors is continuing to improve independent of the HDTV impasse. Second, a basic architectural difference relative to CCD sensors is enabling CMOS imaging systems-on-chip (i-SoC).\nCMOS SoC technology is best represented by microprocessors that make today’s consumer PCs more powerful than the supercomputers used to put a man on the moon and help end the Cold War. While the first derivative SoC imaging sensors were inferior to CCDs, the emerging technology is now technically superior in many respects because deep submicron technology is widely available. Deep submicron refers to the lithographic dimension where the smallest electronic circuit feature is less than 0.25 microns. The nascent submicron CMOS devices for HDTV and UHDTV have hence become digital sensors offering lower noise and better resolution while using ~10X lower power to directly generate 12-bit video. Consequently, it’s now possible for Electronic News Gathering (ENG) cameras to finally migrate to the compact form factor of consumer camcorders by embracing CMOS.\nWhile NTSC television has held on for over 50 years and CCDs have ruled as the best imaging sensors for about 20 years, it is thus a likely point in time for HDTV to move forward by exploiting the emerging CMOS technology.\nCCD technology is mature with respect to yield and performance. Both benchmarks are either at theoretical limits or practical levels that have not changed significantly for several years. While their noise can be extremely low for applications such as astronomy where the image is read at a leisurely rate, generating high-speed video results in higher noise and a concomitant degradation in S/N ratio.\nAssembled in Figure 1 are CCD noise in volts and electrons and camera S/N ratio data from CCD and camera manufacturer datasheets. These many CCD-based cameras and sensors support applications encompassing astronomy through video in its many forms. Also shown for convenient reference is the approximate camera S/N ratio, including the well-known data points for standard definition video and HDTV.\nThe figure clearly shows the practical lower limit for CCD noise due to the composite white noise of the sensor and the camera electronics. The trend also graphically reflects the typical 3 dB increase in CCD noise per octave in video frequency as has been reported. Of utmost importance for camera manufacturers and broadcast studio engineers is, consequently, the associated upper limit on the S/N ratio. This upper limit, which is depicted for all practical purposes by the trend line labeled “empirical white noise limit”, is increasingly unattractive as sensors move well into the megapixel regime for video applications.\nAt lower frequencies, CCD noise and SNR varies over several orders of magnitude due to the variation in flicker noise for the different sensors, camera designs and semiconductor fabrication processes.\nCMOS-based imagers for both infrared and visible applications now use pixel-based amplifiers in the imaging system-on-chip architecture shown in Figure 2. The pixel-based amplification can appropriately set the signal bandwidth so that there is no longer need for external 30 to 33 MHz filtering for HD cameras.\nThis factor reduces the relevant noise bandwidth from tens of MHz for CCDs to tens of kHz for CMOS imaging SoCs. This significant advantage holds even for HDTV and UHDTV cameras, so that the dominant noise can instead be set by the reset noise of the specific pixel design. Conversely, the read noise of a large format CCD is often dominated by the output amplifier’s thermal noise. This is especially true after CCD video bandwidth is best doubled to perform correlated double sampling without compromising CCD MTF. Instead, however, the analog video bandwidth is usually constrained to minimize the noise at the expense of resolution.\nDesigners of CMOS-based sensors reduce noise while eliminating the classic noise vs. resolution trade because the pixel-based amplifier’s bandwidth better matches the imager sampling frequency. The CMOS output buffer’s noise is usually negligible.\nIn practice, therefore, CMOS can circumvent the “3 dB per octave” increase in noise that is experienced with CCD sensors and the associated degradation in camera S/N. Several CMOS manufacturers have now shown this basic trait. Included in Figure 3, for example, are noise measurements at frequencies as high as 75 MHz with Rockwell Scientific’s ProCam-HD sensor wherein the read noise is <25 e- so that the camera S/N ratio can be boosted well above 54 dB. Recently, Takayanagi’s  8.3M pixel CMOS sensor for UHDTV offers 10-bit performance at the composite data rate of ~ 500 MHz.\nToday’s broadcast cameras offer the camera operator the choice of changing the video bandwidth to trade lower noise vs. higher resolution. This option is not necessary with CMOS-based cameras because the noise-setting bandwidth is at the pixel amplifier rather than the video output amplifier. So, besides the potential for lower noise and higher S/N ratio, broadcast cameras with CMOS sensors can have full Nyquist-limited resolution.\nThus, for the same architectural reasons that enable lower read noise at high video rates, higher square wave modulation transfer function is achieved with CMOS-based imaging sensors than competing CCDs. Figure 4 directly compares actual video waveforms from the green channels of CCD and CMOS cameras for several pixels of video and one line of video. In the case of the CMOS sensor, a square wave pattern with continuously variable frequency was used to produce the line video. Since the CMOS sensor has digital output, the analog video is reconstructed data using a high-speed video DAC.\nWhile the modulation for the CCD at 1000 lines is seen to be nearly zero due to the 33 MHz filter used to reduce white noise, the ProCam-HD CMOS sensor maintains full resolution. Further, while the former’s read noise is up to 4 times higher than the latter, the CCD rise and fall times are unsettled and about 3 times slower than the DAC’s 1.5 ns response time.\nThe square wave MTF’s for the two 1920x1080 sensors are compared in Figure 5. The CCD data is for the green channel of a 3-CCD camera and the CMOS data include the blue, green, and red channels. The blue channel MTF at the Nyquist frequency is only slightly below the Nyquist limited value of ~ 70%. Even the red channel from the CMOS sensor, which is degraded by the MTF of the test optics, is superior to the critical green channel of the CCD.\nPerhaps the highest amount of the criticism aimed at CMOS sensors is directed equally toward sensitivity and fixed pattern noise. The latter is an issue that is being handled by the on-chip signal processing capability, both analog and digital. The former can be more difficult to mitigate since manufacturers of CCD-based cameras have cleverly enhanced their sensitivity beyond the limit constrained by each pixel’s area by further compromising resolution. Since CCD MTF is not Nyquist-limited for HD video, CCD manufacturers offer an operating mode where two adjacent video lines are co-added to nearly double sensitivity. While this degrades vertical resolution, concerns for maximizing sensitivity and S/N ratio usually take precedence.\nThe sensitivity of today’s best CMOS sensors matches the sensitivity of the comparable CCD devices since the amount of light collected at each pixel is now roughly equal. Specifically, when deep submicron CMOS processes are used to design and fabricate the sensor, the photon collection efficiency of a CMOS pixel supporting progressive image formation is significantly higher than for a progressive CCD at the 5 micron pixel pitch that produces 2/3 inch HDTV sensors.\nIn the absence of microlens technology, both Frame Interline Transfer and Frame Transfer CCDs can collect more light than today’s CMOS sensor. The former, however, supports only interlaced image formation with a full field time delay to further degrade resolution. The latter are still being developed to support HD video and pose challenges with respect to vertical smear, shading and cost.\nOther factors must be considered as broadcast camera technology migrates from NTSC to ATSC. These should include the following:\n§ Reduce camera cost to enable quick acceptance and proliferation\n§ Lower camera power to reduce heat and enhance battery life\n§ Reduce camera size to enable proliferation and improve usability\n§ Eliminate vertical smear\n§ Provide digital video to enhance creativity, ease of use and facilitate cinema “look” when desired\n§ Provide full performance support for 1080/60p to enhance content creation at highest quality to minimize generation of artifacts for broadcasting 1080/60i and 1080/30p\nThe collective evidence now available from several manufacturers strongly suggests that CMOS sensor technology best addresses both these factors and the highly technical issues previously discussed. CMOS imaging system-on-chip technology thus can truly help migrate broadcast technology to the next level.\nCMOS sensor technology has already enabled the development of visible focal plane arrays with ultra-low read noise and high sensitivity for the HDTV market. The successful integration of silicon photodetectors with low-noise pixel-based amplifiers in fine pixel pitch via state-of-the-art CMOS fabrication technology now not only suggests, but is demonstrating the imminent obsolescence of CCDs in high-quality HD broadcast applications.\nThe charge-couple device (CCD) has been the preferred visible image-capture sensor technology in a variety of applications from consumer digital cameras to expensive scientific instruments primarily due to its relative low-noise operation. However, the CMOS-based paradigm today offers fundamental performance advantages including optimum bandwidth and higher sensitivity. CMOS image sensors available today offer the lowest noise, lowest power consumption, 12-bit ADC performance of any HD sensor on the market. These sensors contain photodetectors optimized for low dark current, high quantum efficiency and high uniformity that operate at high HDTV data rates with lower noise than any CCD alternative.\nThe advantages of CMOS sensor technology have arrived and offer the HDTV broadcast and Professional Video markets the most advanced performance available.\n2. M. Loose, L.J. Kozlowski, A.M. Joshi, A. Kononenko, S. Xue, J. Lin, J. Luo, I. Ovsiannikov, J. Clarke and T. Paredes, “2/3-inch CMOS Imaging Sensor for High Definition Television,” 2001 IEEE Workshop on CMOS and CCD Imaging Sensors, June 2001.","domain":"optical_engineering"}
{"url":"http://tracoluz.com/en/noticias/lumen-candela-lux-2/","date":"2019-05-20T12:02:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255943.0/warc/CC-MAIN-20190520101929-20190520123929-00150.warc.gz","language_score":0.9070566892623901,"token_count":354,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__165054735","lang":"en","text":"Lumen, Candela, Lux\nDo you know the difference between Lumen, Candela e LUX?\nTraço de Luz explains it!\nHave you wondered what exactly means concepts like Lumen, Candela and Lux?\nThese concepts are part of the lighting design dictionary. They are essential for those of us who want to make the best of our professional architecture projects or from our personal projects for home with a nice and responsible lighting design project.\nLight is part of our routine and it’s essential for our well-being. Each space has, accordingly to its activity, a specific light necessity.\nTo make sure your space provides the correct light following the standards for comfort and efficiency you should know precisely what’s the difference between Lumen, Candela and Lux.\nLumen (lm) Is the unit that measures the luminous flux describes the quantity of light emitted by a light source.\nCandela (cd) Is the unit that measures the luminous intensity which describes the quantity of light that is radiated in a particular direction. This is a useful measurement for directive lighting elements such as reflectors. It is represented by the luminous intensity distribution curve (LDC).\nLux (lx) Is the unit that measures the Illuminance which describes the quantity of luminous flux falling on a surface. It decreases by the square of the distance (inverse square law). Relevant standards specify the required lluminance. Illuminance: E(lx) = luminous flux (lm) / area (m2)\nTraço de Luz, Light up!\nBecause light matters!\nFollow us and keep updated about the best of lighting design.","domain":"optical_engineering"}
{"url":"https://www.optometrist-auckland.co.nz/services/spectacle-lenses/","date":"2021-12-05T14:49:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363189.92/warc/CC-MAIN-20211205130619-20211205160619-00581.warc.gz","language_score":0.8572731614112854,"token_count":333,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__121568229","lang":"en","text":"There is now a wide range of lenses available with distinct features.\nWe will give you the best advice on the type of lenses for you.\nHigh Index Lenses\nMuch thinner and lighter than glass. With high index lenses, you can avoid having “milk bottle” lenses.\nLenses made with Trivex material are ultra-light for ultimate comfort. Trivex material is one of the lightest lens materials on the planet. Also Impact resistant.\nProgressive Addition Lenses (PAL)\nRecent technologies have developed this revolutionary lens. This new generation lens allows a seamless transition between your distance and near vision by incorporating multiple focal distances into one lens. The PAL improves the look and performance of the classic bifocal lens.\nReduces glare, reflections, and “ghost images.”\nScratch Resistant Coating\nA great investment to prevent minor scratches.\nCosmetic and Specialty Tints\nAvailable in a variety of colors and shades.\nVery accommodating for an outdoor lifestyle. When the wearer goes outside, the lenses darken or tint. When the wearer goes back inside, the glasses become clear.\nEliminate almost all glare, reducing eye strain and increasing visibility.\nNo matter what your particular need, there’s a specialty lens designed for you.\nHighest Quality Lens Designs + Brands some of our Trusted Ophthalmic lens Vendors: Essilor, Hoya, Transitions","domain":"optical_engineering"}
{"url":"https://www.moisero.com/products/adjustable-glasses","date":"2021-03-03T15:01:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178366969.45/warc/CC-MAIN-20210303134756-20210303164756-00196.warc.gz","language_score":0.9482240080833435,"token_count":605,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__148348111","lang":"en","text":"👓👓See things again with clarity and clarity than before!🤓🤓\n💥💥💥Get your \"new eyes\"\nGet an instant 20/20 vision without going for an eye checkup with the Adjustable Glasses Unisex Dial Vision Lens. You can now achieve the clear vision and focus without any prescription with this glasses. Using the dial on the side of the glasses, you can adjust its focus to your comfortability.\nThe Wonderful Adjustable Glasses are the latest innovation in the field of optometry\nGlasses are the important solution to solve problems such as the slow deterioration of vision that makes people always constantly need new glasses and the constant change of them when both eyes have a short and long distance vision impairment.\nEach lens has a diopter range of -7.0 to +4.0, so you can adjust the magnification\nHow It Works\nUnlike your usual glasses which only allows you o see in a definite distance, these adjustable glasses are not like that. It enables you to adjust the lend so you can zoom the distance and see clearly. This is NOT a replacement for your prescription glasses, but just an aid for reading in a more focus way. You can adjust its use from distance glasses to reading glasses! A great help for people with near and farsightedness. But remember, do not use this glasses for driving! These are only designed for reading and doing crafts. Rotate the dial on the side to adjust the glasses from viewing from near or afar.\nSee all the benefits\n✔ Scratch resistant and anti-glare\n✔ Shock and break proof\n✔ Water and dirt repellent\n✔ Dust repellent and easy care\n✔ Increased contrast and without fatigue\nYou do not need new glasses\nThe Wonderful Adjustable Glasses solve the problem of needing new glasses when your vision has deteriorated. The ingenious mechanism allows you to change the magnification of the glasses, you just have to turn the knobs and you can see again well.\nNo more changes to read and view from a distance\nBecause the glasses are adjustable, you no longer have to change them every time you need to read or watch from a distance. This is done in a few seconds by turning the buttons.\nThe glasses are very strong and shock resistant and have a flexible design so that they do not break as fast as normal glasses. So you don't have to worry about them breaking when they fall.\nSmart and Durable Design\nThe lens is made of durable acrylic materials. You can see that the lens is made of layers which are adjustable left to right. It has a dial on the side of the glasses so you can adjust to your needs depending if you want to see what is in the distance or what is near you. The design is both suitable for men and women. Very lightweight and comfortable when worn. Will not leave any marks in the nose bridge.","domain":"optical_engineering"}
{"url":"https://axel-and-alice.com/ddcl/ddca/ddca0228.html","date":"2022-07-05T23:02:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104628307.87/warc/CC-MAIN-20220705205356-20220705235356-00727.warc.gz","language_score":0.9416863322257996,"token_count":380,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__101801447","lang":"en","text":"Dear Jaime Lasdauskus\nI'm sure you've heard of radiation. Well, not all radiation is bad or dangerous like the radiation from nuclear reactors or bombs. Most radiation is good for us--in the right doses. We couldn't live without it.\nHeat radiation is electromagnetic radiation with a medium wavelength.\nThe wavelength is like the distance between ripples that are travelling over a pond.\nBut what's this got to do with the sky's being blue?\nWhat happens is that the light from the sun is white. Now you may know that white light is really a mixture of different colours...or different wavelengths of light. When all these different wavelengths reach the top part of the atmosphere most of them pass straight through but some of them don't. That's because there are molecules of gas (the air) that are about the same size as the wavelength of the blue and violet light (about 35 micrometres or 35 millionths of a metre across). So they get bumped off course.\nThe ultraviolet particles are just the right size to get absorbed by ozone molecules (groups of three oxygen atoms joined together). That's why the ozone layer is important--it absorbs most of the dangerous ultraviolet radiation.\nBut the blue light is scattered a bit and not absorbed so much. It zips and zaps around the sky until it finally bounces in our direction. So we see some of the sun's blue light coming from all over the sky.\nThat's why the sky does not appear to be blue at night. There's not enough blue light from the moon or stars for us to notice.\nBut during day time it is different. Because visible light is most intense at 0.5 micrometres (which we see as blue), more light is scattered at this wavelength than at any other wavelength--and the sky appears blue.","domain":"optical_engineering"}
{"url":"https://satomec.ch/node/1210","date":"2024-04-21T02:06:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817699.6/warc/CC-MAIN-20240421005612-20240421035612-00419.warc.gz","language_score":0.9140183925628662,"token_count":149,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__180484645","lang":"en","text":"The eTOP Series 500G HMI products combine state-of-the-art features and top performance with an oustanding design. They are the ideal choice for all demanding HMI applications including factory, energy and marine applications.\nThe eTOP510G features a high-brightness, contrast-enhanced ruggedized 10.1” TFT widescreen display with LED backlight. The product has been designed for use in harsh environments and outdoor applications.Glass bonding assembly and glass surface treatment provide for superior optical performance resulting in a sunlight-readable product. The durable glass touchscreen requires the human touch, eliminating false activations, and offers high reliability and durability; it will continue to work even when surface is scratched or contaminated.","domain":"optical_engineering"}
{"url":"https://www.ehrainc.com/resources/news/smart-glass","date":"2022-09-25T20:30:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334596.27/warc/CC-MAIN-20220925193816-20220925223816-00221.warc.gz","language_score":0.9449357986450195,"token_count":454,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__142824896","lang":"en","text":"Someday we won't need curtains or blinds on our windows, and we will be able to block out light -- or let it in -- with just the press of a button. At least that's what Keith Goossen, associate professor of electrical and computer engineering at the University of Delaware, hopes. Goossen and Daniel Wolfe, who earned a doctoral degree from UD last year, developed panels that can switch between allowing light in and blocking it out. This \"smart glass\" technology could be utilized in eco-friendly windows, windshields, roof panes and building envelopes, absorbing light and heat in the winter and reflecting it away in the summer. Although Goossen isn't the first scientist to make smart glass, his team's invention is about one-tenth the price of other versions. It is also more transparent in its transparent state and more reflective in its reflective state than competitors, he said.\nThe principles behind this smart glass technology are surprisingly simple. It starts with two sheets of plastic separated by a thin cavity. The plastic contains tiny cube-shaped structures that make the material retroreflective, meaning that it bounces light back to its source, like a bicycle reflector does. Then the chamber is filled with a fluid called methyl salicylate -- an inexpensive wintergreen extract that happens to be the active ingredient in some over-the-counter pain relief creams. This liquid has optical properties, or interaction with visible light, that match the optical properties of the retroreflective plastic. When combined, the light can pass through, and the system becomes transparent. This is called refractive index matching. Goossen's smart glass system can switch from transparent to reflective a thousand times without degrading, as shown in a paper published late last year in the journal Optics Express Goossen uses 3-D printing to make his prototypes, but this technology could eventually be manufactured at a high volume and low cost using injection molding. He is now testing his system over a wide range of temperatures to see how it performs, especially as it approaches temperatures that could cause the fluid within to freeze, which will be between 3 and 16 degrees Fahrenheit, depending upon the eventual fluid that is used. Commercialization may eventually follow.","domain":"optical_engineering"}
{"url":"https://ukupdates.co.uk/photographer-captures-stunning-ice-halo-around-the-sun-over-the-swiss-alps/","date":"2022-05-27T19:54:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662675072.99/warc/CC-MAIN-20220527174336-20220527204336-00212.warc.gz","language_score":0.9483227729797363,"token_count":244,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__252079893","lang":"en","text":"A photographer called Michael Schneiderusing captured a stunning image of the moment ice crystals froze midair, creating a ‘halo’ around the sun.\nHe captured the display using just an iPhone 11, while skiing down the Hörnligrat Mountain in the Swiss Alps.\nThe optical phenomenon, which is actually known as a 22° halo, occurs when light interacts with ice crystals suspended in the atmosphere.\nThe crystals can form high up in cirrus clouds, or close to the ground.\n‘Just like raindrops scatter light into rainbows, the crystals of ice can reflect and refract light, acting as mirrors or prisms depending on the shape of the crystal and the incident angle of the light.’\nSchneider said he was skiing down the mount when he looked behind towards the top of the mountain and saw the stunning event forming.\n‘I quickly realized that a halo was developing in the backlight to the Sun, initially very inconspicuous until this light phenomenon increased incredibly,’ Schneider said in comments obtained by SWNS.\nThe image was taken in November 2019 around 11AM on the Hörnligrat, the mountain station.","domain":"optical_engineering"}
{"url":"https://www.customboatsunlimited.com/product/extreme-pro-x2-deck-led-lighting-system/","date":"2023-03-20T23:16:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943562.70/warc/CC-MAIN-20230320211022-20230321001022-00137.warc.gz","language_score":0.8782675266265869,"token_count":436,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__139559298","lang":"en","text":"Discover exceptional LED boat lights with minimal power draw in the Blue Water LED Extreme Pro Deck LED Lighting Kit. Featuring an IP68-rated waterproofing, this boat lighting kit stands above the competition with superior lighting and expert craftsmanship. The aluminum housing has a rugged compact design that stands up to the harshest boating conditions, and the 4′ wire lead provides versatile mounting options for a boost of light wherever you need it…the application possibilities are endless. The kit was redesigned to be extremely easy to install, high powered yet dimmable. Great for the deck of your boat, kayak, fishing canoe, truck bed, even in your truck wheel wells. Powerful 450-lumen lighting at a wide, 150° dispersion angle outshines imitators’ lights, and these LED boat lights sip just 4.5W of power from a 9–30V DC source for strong lighting that won’t drain the battery.\nThe Blue Water LED Extreme Pro Deck LED Lighting Kit includes mounting bases for straight and curved surfaces, and stainless steel mounting hardware. 2.8″ x 1.5″. Manufacturer’s lifetime limited warranty. Extreme Pro Deck LED is available in the following color options: Red, White, Blue, Green, or Amber.\nExtreme Pro Deck Light LED Kit includes\n- 1 – Extreme Pro Blue Water LED™ Deck Light\n- 1 – Flat surface mounting pad\n- 1 – Curved surface mounting pad\n- 2 – Machine mounting screws\n- 2 – Self-tapping mounting screws\n- 2 – Flat washers\n- Aluminum housing\n- 2.8″ X 1.5″\n- IP68 waterproof\n- 150 degree light dispersion angle\n- 4ft Wire Lead\n- Mounting bases for straight and curved surfaces included\n- Stainless steel mounting hardware included\n- Voltage – 9-30 VDC\n- Color Options – Red, White, Blue, Green, Amber\n- Lifetime Limited Warranty\nAmber, Blue, Green, Red, White\n**Shipped factory direct\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"http://aslms.org/annual-conference-2018/explore/silent-auction/devices","date":"2017-08-17T19:15:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886103910.54/warc/CC-MAIN-20170817185948-20170817205948-00434.warc.gz","language_score":0.8251610398292542,"token_count":242,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__12447804","lang":"en","text":"SOLD Item #111\nv900L Vision System\nv900L Visual Enhancement System-New LED Technology with Mobility\nThe v900L Visualization System combines a proprietary superior white light LED with two-way polarization to enhance the vision of medical professionals during dermal inspection procedures by removing surface glare from the patient’s skin promoting improved viewing of sub-surface features. Reflected light is magnified and then polarized again as it passes back through the Visi-Shield to the viewer.\nEstimated Value: $2,295\nMinimum Bid: $1,500\nWarranty: Syris Scientific (Syris) warrants that the Equipment conforms to any specifications provided in writing by Syris to Customer for that Equipment, is of sound materials and workmanship, is new and unused, unless otherwise specified.\nBidder Qualifications: Physicians only\nCompany: Syris Scientific\n22 Shaker Rd, PO Box 127\nGray, Maine 4039\nCompany Phone: (207) 657-7050\nCompany Website: syrisscientific.com\nFor Additional Details Contact: Pam Wilkinson, email@example.com","domain":"optical_engineering"}
{"url":"http://qot.cent.uw.edu.pl/","date":"2024-04-25T01:11:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00876.warc.gz","language_score":0.8058119416236877,"token_count":560,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__178264069","lang":"en","text":"Project titled “Quantum Optical Technologies” is carried out within the International Research Agendas programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund.\nThe Centre for Quantum Optical Technologies (QOT) explores quantum phenomena, such as superpositions and entanglement, in optical and optically controlled system, with the long-term prospects of their practical utilisation. In the long-term, the outcomes of this research are expected to be used in practice and translated, for example, into more sensitive sensors or safer communication methods. The Centre has been established by the University of Warsaw in partnership with the University of Oxford under the International Research Agenda Programme operated by the Foundation for Polish Science. It is hosted by the Centre of New Technologies, an interdisciplinary scientific unit of the University of Warsaw focused on research and technology development. The director of QOT is Prof Konrad Banaszek.\nQOT currently consists of five laboratories focussing on:\n- Quantum Technologies (QT Lab), led by Prof Konrad Banaszek.\n- Quantum Memories (QM Lab), led by Dr Wojciech Wasilewski.\n- Quantum Information and Inference (QI² Lab), led by Dr Jan Kołodyński.\n- Quantum Resources and Information (QR+I Lab), led by Dr Alexander Streltsov.\n- Quantum Optical Devices (QOD Lab), led by Dr Michał Parniak.\nFinancial support: 34 999 430,00 PLN\nThe International Scientific Board consisting of world-renowned researchers oversees the development of the QOT centre, and is responsible for the employment of new group leaders.\nMembers of the International Scientific Board:\nKatarzyna Chałasińska-Macukow – University of Warsaw, Poland\nArtur K. Ekert – University of Oxford, United Kingdom\nSusana Gema Fernández-Huelga – Universität Ulm, Germany\nPeter L. Knight – Imperial College London, United Kingdom\nGerd Leuchs – Max Planck Institute for the Science of Light, Erlangen, Germany\nPaolo Mataloni – Sapienza Università di Roma, Italy\nEugene Polzik – Niels Bohr Institute, University of Copenhagen, Denmark\nChristine Silberhorn – Universität Paderborn, Germany\nKrishna Thyagarajan – Bennett University, Greater Noida, Uttar Pradesh, India\nNikolay V. Vitanov – St. Kliment Ohridski University of Sofia, Bulgaria\nIan A. Walmsley – University of Oxford, United Kingdom","domain":"optical_engineering"}
{"url":"http://www.simgin-chip.com/wiki/index.php?title=Grove_-_UV_Sensor","date":"2019-02-21T03:21:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247499009.48/warc/CC-MAIN-20190221031117-20190221053117-00019.warc.gz","language_score":0.8654853105545044,"token_count":384,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__130770663","lang":"en","text":"Grove - UV Sensor\nThe Grove – UV Sensor is used for detecting the intensity of incident ultraviolet(UV) radiation. This form of electromagnetic radiation has shorter wavelengths than visible radiation. The Grove - UV Sensor is based on the sensor GUVA-S12D which has a wide spectral range of 200nm-400nm. The module outputs electrical signal which varies with the UV intensity, which gives your suggestion if it is a good idea to beach today.\nHigh stability Good Sensitivity Low power consumption Schottky type photodiode sensor Wide response range Grove Interface Specification\nItem Min Typical Max Unit Operating Voltage 3.0 5.0 5.1 VDC Current 0.31 mA Output Voltage mV Response wavelength 200 ~ 370 nm Working Temperature -30 ~ 85 ℃ Usage\nUV sensors are used in many different applications. Examples include pharmaceuticals, automobiles, and robotics. UV sensors are also used in the printing industry for solvent handling and dyeing processes. In addition, UV sensors are also used in the chemical industry for the production, storage, and transportation of chemicals.\nThe fact of the UV sensor work is: In sunlight, the UV index and Photocurrent are a linear relationship.\nAbout our Grove - UV Sensor, we have converted Photocurrent to corresponding voltage value collected by Arduino/www.simgin-chip.com. The output voltage and the UV index is linear:\nillumination intensity = 307 * Vsig\nwhere: Vsig is the value of voltage measured from the SIG pin of the Grove interface, unit V. illumination intensity unit: mW/m2 for the combination strength of UV light with wavelength range: 240nm~370nm\nNote: To calculate the UV index value, please refer to http://www2.epa.gov/sunwise/uv-index. It's hard to say that the measurement from","domain":"optical_engineering"}
{"url":"https://dvdconvertersoft.com/magnetic/which-colour-laser-is-used-to-read-the-data-from-dvd.html","date":"2022-05-21T18:00:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662540268.46/warc/CC-MAIN-20220521174536-20220521204536-00177.warc.gz","language_score":0.9086887836456299,"token_count":935,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__62116268","lang":"en","text":"Current DVDs employ a 650-nanometer red laser and have a recording capacity of 4.7 Gbytes. The Blu-ray Disc’s 405-nm blue-violet laser enables the recording and rewriting of up to 27 Gbytes of data.\nWhich color laser is used to read and write data in a DVD?\nDVD uses a red colour laser to read and write data.\nHow does laser read DVD?\nA DVD player is very similar to a CD player. It has a laser assembly that shines the laser beam onto the surface of the disc to read the pattern of bumps . The DVD player decodes the MPEG-2 encoded movie, turning it into a standard composite video signal.\nWhich Colour laser beam is used in CD and DVD?\nThe role of the laser\nInitially, CD lasers with a wavelength of 780 nm, which is within infrared range, were used. For DVDs, the wavelength was reduced to 650 nm (red color), and the wavelength for Blu-ray Disc was reduced to 405 nm (violet color).\nHow does a laser read data on a CD or DVD?\nThe CD drive shines a laser at the surface of the CD and can detect the reflective areas and the bumps by the amount of laser light they reflect. The drive converts the reflections into 1s and 0s to read digital data from the disc.\nWhy does Blu-ray use a blue laser?\nA blue-violet laser, emitting at a wavelength of 405 nanometres, reads the pits. Because the laser used in a Blu-ray is of a shorter wavelength than that used in DVDs (635 or 650 nanometres), the spiral track can be more tightly wound. Thus, the Blu-ray disc can hold more information than the DVD.\nWhat is the working of DVD?\nDVDs VS CDs. Digital versatile discs (DVDs) can store more information than compact discs (CDs) because they have smaller pits, placed closer together. It is the pattern of these pits burned onto a disc’s surface that encodes the 1’s and 0’s a player translates into sound and/or images.\nWhat is the price of DVD player?\nDVD Players Price list in India (September 2021)\n|DVD Players NAME||PRICE|\n|Samsung DVD-E370 DVD Player||Rs.2,980|\n|Samsung DVD Player – DVD-E370||Rs.2,990|\n|DXP PDVP-958 DVD Player Black||Rs.3,362|\n|Dapic DS 959 DVD Player||Rs.2,360|\nIs laser a photon?\n“Laser” is an acronym for light amplification by stimulated emission of radiation. … These photons are all at the same wavelength and are “coherent,” meaning the crests and troughs of the light waves are all in lockstep. In contrast, ordinary visible light comprises multiple wavelengths and is not coherent.\nWhat is difference between CD and DVD?\nA Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. DVD+R is a recordable DVD format similar to CD-R. … The disc cannot be recorded onto a second time.\nWhat is the difference between CD R and CD-RW?\nA Compact Disc Recordable (CD-R) is a Write Once Read Multiple (WORM) disc. These discs can only record data once and then the data becomes permanent on the disc. … A Compact Disc Re-Writable (CD-RW) is an erasable disc that can be reused. The data on a CD-RW disc can be erased and recorded over numerous times.\nHow data is stored on CD?\nData is stored on the disc as a series of microscopic indentations called “pits”, with the non-indented spaces between them called “lands”. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands.\nHow is data recorded on a CD ROM?\nA CD-ROM drive uses a low-power laser beam to read digitized (binary) data that has been encoded in the form of tiny pits on an optical disk. The drive then feeds the data to a computer for processing. The standard compact disc was introduced in 1982 for digital audio reproduction.","domain":"optical_engineering"}
{"url":"http://www.ekipstech.com/breathmeter","date":"2014-04-18T23:15:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00129-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9297506809234619,"token_count":133,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__23009477","lang":"en","text":"The Breathmeter is an instrument that measures specific biomarker molecules in exhaled breath. It uses mid- infrared tunable diode laser spectroscopy (TDLS) to measure specific gas phase molecules with sufficient sensitivity for medical applications. The table below lists some of the molecules that medical research has linked to different health conditions along with prominent mid-IR absorption bands. Breath analysis offers the promise of a truly revolutionary new tool for improving healthcare without adding significant new costs since expensive reagents or consumables are not needed. The Breathmeter is currently available for research purposes only, it has not been cleared for clinical use by the FDA.\nBiomarkers in Breath","domain":"optical_engineering"}
{"url":"http://submitrelease.com/global-optical-microscope-market-2016-by-manufacturers-regions-trends-analysis-forecast-to-2021/","date":"2017-05-24T06:06:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607802.75/warc/CC-MAIN-20170524055048-20170524075048-00408.warc.gz","language_score":0.8773513436317444,"token_count":311,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__128912161","lang":"en","text":"Global Optical Microscope Market 2016 by Manufacturers, Regions, Trends, Analysis, Forecast to 2021\nTo begin with, the report defines the Optical Microscope market and segments it based on the most important dynamics, such as applications, geographical/regional markets, and competitive scenario. Furthermore Optical Microscope market report provides detail analysis, forecast, Size, share, outlook, current trends, market demand, market growth. Macroeconomic and microeconomic factors environments that currently prevail and also those that are projected to emerge are covered in this report.\nThe optical microscope, often referred to as light microscope, is a type of microscope which uses visible light and a system of lenses to magnify images of small samples.\nRequest For Sample Report: http://www.fiormarkets.com/report-detail/24406/request-sample\nScope of the Report:\nThis report focuses on the Optical Microscope in Global market, especially in North America, Europe and Asia-Pacific, South America, Middle East and Africa. This report categorizes the market based on manufacturers, regions, type and application.\nMarket Segment by Manufacturers\nMarket Segment by Regions\nNorth America (USA, Canada and Mexico)\nEurope (Germany, France, UK, Russia and Italy)\nAsia-Pacific (China, Japan, Korea, India and Southeast Asia)\nSouth America, Middle East and Africa\nMarket Segment by Type\nMarket Segment by Applications\nThere are 13 Chapters to deeply display the global Optical Microscope market report.","domain":"optical_engineering"}
{"url":"https://www.floodwayprintco.com/blog/tag/colour-perception/","date":"2024-04-19T11:43:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00688.warc.gz","language_score":0.9270384311676025,"token_count":931,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__83022679","lang":"en","text":"Our eyes can be easily deceived when we view colour, and understanding the limitations of colour perception helps achieve clear expectations for colour accuracy. The deception is mostly due to our brain, which is processing a ton of information and doing the best it can. Some factors like genetics play a part, but so does the environment. The light in the environment is the biggest factor on how we perceive colour.\nThis post is a quick introduction to the different ways our perception of colour can be effected. This post is a summary – for a more in-depth look, please reference X-Rite’s Colour Perception Blog Series, the main source of this post.\nTemperature of Light\nThe human eye can view millions of colours, but it breaks down to three primary colours: red, green, and blue.\nRGB is the foundation of human colour vision.\nIt’s important to understand that objects don’t actually have a colour. They have properties that determine how light is absorbed and reflected. The mix of that reflected light is what our eyeball uses to perceive the colour.\nThis example of a red car under different light shows how our perception of colour can change when the ambient light changes. When the same colour is viewed under different light sources it can appear quite differently. Typically more blue under a night sky, or more yellow under a fluorescent light.\nOur brains have learned that objects should look a certain way, so sometimes our brain applies this logic in interesting ways that can change our perception of colour.\nThe optical illusion below from Beau Lotto shows it really well. Once the rest of the colours on the cube are masked you can see how much they effect your perception of colour.\nThis is all very important to understand when colour communication is critical.\nReflectiveness and Texture\nSince the colours an object absorbs and reflect have such a big effect on colour perception, the material of the object itself becomes important in the way the colour is perceived.\nThis can be a challenge in the manufacturing and print industries. Most print shops (including ours) will use bright ‘Day Light’ tuned bulbs to help ensure that colours are being viewed accurately, and to avoid common optical illusions.\nTechnology can be a roadblock to communicating colour, as well. One of the biggest challenges is between different displays on electronic devices. We view colour many ways: on our phones, TV, computer screens, in print, on a tablet, etc. The brightness and other variables will all change the way a colour is perceived.\nThe Environment and Fatigue\nThe environment that the colour is viewed in has a large effect on perception, but once that light passes through the eye there are other variables that can change the way a colour is perceived.\nRetinal fatigue can contribute to colour perception issues. Just like the rest of our body, the eye benefits from rest, and is affected negatively by fatigue.\nUse the example below from to experience retinal fatigue. If you stare at this image for around 30 seconds and then close your eyes, you will see a shadow of the image on the back of your eyelids. This ‘afterimage’ occurs because when we stare at an object the chemicals in our eye’s cones start to deplete and send incorrect information to our brain. Your eyes will adjust and reset shortly, but this is a good example of how quickly an eye can become fatigued and alter colour perception.\nBackground effects can play a role, as well. In the example below, are the arrows the same colour?\nThey really are. Each background colour strongly changes our eye’s ability to perceive colour.\nSo while light plays a big role, we need to remember that our eyes can be tricked. A tired eye cannot make great judgments. Surrounding colours and light in the environment can trick your eye and cloud your view.\nLast but not least are our human traits. The human eye and brain has several limitations, and some people are better able to detect slight changes in colour. Curious about your colour deficiency? There’s a test at the end!\nTrue colour blindness where a person sees only grey is apparently quite rare. We only use Red, Green, and Blue to perceive colour though, so any slight change in those chemical sensors will change the way we perceive light.\nAge, poor colour memory, and life factors like stress can all play a role in your chemical reaction to wavelengths of light.\nIf you’re worried or curious about colour deficiency, the easiest thing to do is take a test!","domain":"optical_engineering"}
{"url":"http://nickscarblog.com/diy/hid-vs-led-for-cars-which-is-better","date":"2018-01-19T01:23:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887692.13/warc/CC-MAIN-20180119010338-20180119030338-00001.warc.gz","language_score":0.9436480402946472,"token_count":974,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__131603227","lang":"en","text":"I have a number of posts on my blog about upgrading your existing halogen bulbs to either HID (Xenon) bulbs for headlights or fog lights, as well as a number of articles on upgrading to LED bulbs for smaller things like DRLs, Reverse Bulbs, and City Lights. A commenter recently asked why I recommend HID vs LED setups depending on the bulb, which is a great question! Both LED and HID headlights have gained popularity in recent years because they offer the appeal of advance technology and high performance, as compared to traditional halogen bulbs. Whereas halogen bulbs more closely resemble the type of household bulbs that you would have at home, both LED and HID headlights use sophisticated technology to light your path. Both are good options for your vehicle, but there are some differences bear noting when choosing between the two. Let’s look at LED vs HID headlights and compare the two options throughout the rest of this post to understand when one option is better than the other.\nBenefits of HID Lights\nAlso known as xenon headlights, HID (or high intensity charge bulbs) feature an arc of electricity created by electricity travelling between two tungsten electrodes inside the bulb, which is filled with xenon gas. The result is a brighter light than you get from a tungsten element alone. To put that into perspective, you can get about 3,000 lumens (a unit measuring the amount of light emitted per second) from an HID bulb, whereas a halogen bulb emits just about half that amount, for a difference of 90 square meters vs. 30 square meters of illumination. That results in better night driving visibility and increased safety, even in bad weather. HID bulbs also use much less energy than halogen bulbs and last much longer than halogen bulbs – 2000 hours of illumination as opposed to just 450. On the downside, HID lights are rather expensive when compared to other types of lights and because they are uniquely shaped, it can be difficult to retrofit an older car with these bulbs.\n- Far brighter light, and a cooler color than halogen\n- Far less energy consumption than halogen\n- Longer lasting that halogen\n- Bigger shape than halogen (may not fit)\n- Needs a projector lens to focus beam or may blind oncoming drivers\n- Requires a ballast to power it (needs room to mount)\n- May need a coding update to your ECU\nBenefits of LED lights\nLED bulbs are relatively new on the automotive lighting scene, but they have gained huge popularity in recent years. LEDs are electrical conductors that emit light when they are turned on by way of an electrical circuit. The circuit is either switched on or it is off; these bulbs do not require a heating up period. One of the biggest advantages in favor of LED headlights is that they have very few parts. That means they can be made quite small and can withstand any vibrations and bumps that may occur on rough roads. They, too, consume less energy than halogen bulbs and are very long-lasting, sometimes up to tens of thousands of hours. One of the most popular reasons for choosing LED bulbs is that they come in many different colors of light.\n- Brighter than halogen, but less bright than HID\n- More color options than halogen or HID, option for strobe lighting\n- Less energy consumption than halogen\n- Longer lasting than halogen\n- Smaller, easier to fit shape than HID\n- No ballast required\n- May require resistors to avoid a “bulb out” error on dash\n- Light does not project as far\nWhen to Pick HID over LED?\nLEDs are cheaper, smaller, don’t need a special ballast or projector lens, and have more color options, which makes them the ideal choice for replacing smaller bulbs like turn signals, reverse lights, or reverse lights…but for lights that you need a longer field of vision, like your headlights, fog lights, or a separate spot light (i.e. on a roof or separate light rail) HIDs are the way to go. Automakers are now making LEDs that work well as a main headlight beam or fog light beam, but that technology is very expensive and requires special wiring and headlight lenses that can’t be easily retrofitted, so for now this technology isn’t obtainable unless your car also came with a OEM LED headlight/fog light option.\nTL;DR: if it’s a smaller bulb, go LED. If it’s your headlights or fog lights, go for a HID kit. Anything in between, research your options and see what is the most cost-effective.","domain":"optical_engineering"}
{"url":"http://trevse.com/plugable-usb-2-0-800x-inverted-digital-optical-microscope-for-windows-mac-linux-and-android-2mp-true-800x-magnification/","date":"2023-06-02T04:52:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648322.84/warc/CC-MAIN-20230602040003-20230602070003-00055.warc.gz","language_score":0.782413125038147,"token_count":1878,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__38990319","lang":"en","text":"The included accessory kit provides everything you need to get started. Use with a host device or flip out the optical eyepiece for direct viewing. Capture resolution and exposure can be changed with a few clicks, and video or time-lapse modes allow for continuous observation of a subject. Multiple viewing options unlike a standard compound microscope that can only view thin slides, this inverted microscope design can fit larger subjects like metallurgical samples and petri dish cultures.\nCommon uses include classroom exploration, observing plant and animal cells, fiber analysis, and surface inspection. Placing microscopic objects in just the right spot can be difficult, but the postion adjustment knobs make it easy to set the stage for seeing small things in a big way. Illuminate your subject includes built-in LEDs above and below the stage that can be set to a range of brightness levels to properly illuminate your subject.\nUseful and fun for students, scientists, collectors, testers, and anyone interested in exploring the microscopic world. Inverted microscope with optics below stage allows for larger objects such as petri dish cultures or metallurgical samples to be viewed. Flip the switch left or right to quickly adjust the brightness level, or press it in to toggle between the top and bottom LEDs.\nTransmit light through translucent samples using the top LED with single lens condenser, or reflect light off opaque subjects with the bottom LEDs. Built-in dimmable leD illumination above and below the stage for both reflected and transmitted lighting modes.\nAmScope BS-72P-100S-22 72 Pieces of Pre-Cleaned Blank Microscope Slides and 100 Pieces of 22x22mm Square Coverslips Cover Glass\nThe dimensions of the slide are 1\" x 3\" 25. 4x76. 2mm with ground edges. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0006\" 22x22x013mm. They are brand new in factory-sealed box. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips.\nDimensions of slides: 1\" x 3\" x 004\" 25. 4x76. 2x1mm. 72 piece pre-cleaned blank clear slides, dimensions of slides: 1\" x 3\" x 004\" 25. 4x76. 2x1mm. The cover slips are 7/8 x 7/8\" 22x22mm and 0006\" 013-017mm in thickness. Features & specifications: Quantity: 72 blank slides and 100 coverslips. This is a package of 72pc pre-cleaned blank microscope glass slides with ground edges plus 100 piece 22x22mm square glass cover slips.\nMaterial: optical glass. Dimensions of cover Slips: 7/8 x 7/8 x 0\nAmScope M150C-I 40X-1000X All-Metal Optical Glass Lenses Cordless LED Student Biological Compound Microscope\nAmScope PS25 Prepared Microscope Slide Set for Basic Biological Science Education, 25 Slides, Includes Fitted Wooden Case\nAmScope SP-14 Microscope Slide Preparation Kit Including Stains\nAmScope PS25W Prepared Microscope Slide Set for Basic Biological Science Education, 25 Slides, Includes Fitted Wooden Case\nAmScope ML-A-A Microscope Immersion Oil, 1/4 Oz\nThe Ultimate Guide to Your Microscope\nAmScope Optical Glass Lens All-Metal LED Compound Microscope, 6 Settings 40x-1000x, Portable AC or Battery Power\nAmScope BS-C12 Microscope Slides Single Depression Concave Pack of 12\nInnovating Science Bacteria Stain Chemicals Set\nAmScope PS100A Prepared Microscope Slide Set for Basic Biological Science Education, 100 Slides, Set A, Includes Fitted Wooden Case\nCarson MicroBrite Plus 60x-120x Power LED Lighted Pocket Microscope MM-300\nPowerfully illuminated, crisp MagnificationThe LED illumination and internal aspheric lens system will ensure users a clear, bright and crisp image. Microbrite plus 60x -120x power led lighted pocket Microscope MM-300 The MicroBrite plus is an extremely powerful, compact and lightweight portable microscope.\nPlease contact Carson for additional warranty details. Ground edges. Carson will repair or replace your pocket microscope if it is found to have manufacturing defects in materials or workmanship. The variety of uses is endless it is the perfect tool to introduce young children to the joys of science or even for advanced users to enjoy microscopic viewing power on the move.\nCompact, Lightweight and Portable Design. Material: optical glass. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips. Uses 1 aa battery not included | Not Recommended To Be Used In Conjunction With Eyeglasses. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0\n006\" 22x22x013mm. The microbrite plus is powered by 1 AA battery not included.\nVIVOSUN 6.5\" Gardening Hand Pruner Pruning Shear with Straight Stainless Steel Blades Orange\nCarson MicroBrite 20x-40x LED Lighted Pocket Microscope for Learning, Education and Exploring (MM-24, MM-24MU)\nCarson LumiLoupe 10X Power Stand Magnifier (LL-10)\nPlugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand for Windows, Mac, Linux (2MP, 250x Magnification)\nGrowsun 2ft 8 Layer Black Mesh Hanging Herb Drying Rack Dry Net\n30X 60X Illuminated Jewelers Eye Loupe Magnifier Magnifying with LED Lighting, Unique 2 Lens Design\nAomekie Universal Clip LED Zoom 60X-100X Pocket Microscope Magnifier for Cellphone UV Currency Detectting Biology Jewelry Appraisal Microscope\nIpomelo 2ft 6 Layer Clip On Collapsible Mesh Hanging Hydroponic Drying Dry Rack Net Heavy Duty Steel Rings Hanging Dryer Net Detachable Each Layer For Flower And Plants\nCarson BugLoupe 4.5x Magnifier (HU-55)\nVIVOSUN Gardening Hand Pruner Pruning Shear with Titanium Coated Curved Precision Blades (Curved Blade)\nPlugable USB 2.0 Digital Microscope with Flexible Arm Observation Stand for Windows, Mac, Linux 2MP, 250x Magnification\nProduct dimensions lxwxh: 1. 2 inch x 2. 25 inch x 3. 5 inch | backed by Carson's Limited Lifetime Warranty. This is a package of pre-cleaned 72 piece clear microscope blank slides and 100 piece 22mmx22mm square glass cover slips. Flexible arm stand with observation pad includes graduated marks for easy measurement.\nOptional software for Windows and OS X adds additional features. 100 piece cover slips, dimensions of coverslips: 7/8 x 7/8 x 0006\" 22x22x013mm. 60x-120x power Pocket Microscope. Useful and fun for students, collectors, testers, and anyone interested in exploring the microscopic world.2. 0 megapixels, up to 250x magnification Note: Final magnification corresponds to monitor size.\nNo ios Support. Material: optical glass. Uses 1 aa battery not included | Not Recommended To Be Used In Conjunction With Eyeglasses. Native osx support using PhotoBooth in 105 or above, third party support in older versions. Uses a webcam chipset and sensor to support nearly any operating system using standard webcam software.\nCarson MicroBrite Plus 60x-120x Power LED Lighted Pocket Microscope (MM-300)\nCelestron 5 MP Handheld Digital Microscope Pro\nJiusion 40 to 1000x Magnification Endoscope, 2MP 8 LED USB 2.0 Digital Microscope, Mini Camera with OTG Adapter and Metal Stand, Compatible with Mac Window 7 8 10 Android Linux\nCarson eFlex 75x/300x Effective Magnification (Based on a 21\" monitor) LED Lighted USB Digital Microscope with Flexible Stand and Base (MM-840)\n1: Cherrypickers' Guide to Rare Die Varieties of United States Coins, Sixth Edition, Volume I\n100 2x2 Cardboard Coin Holders QUARTERS by coin flips\nCherrypickers' Guide to Rare die Varieties of United States Coins, Volume II\n6pcs ESD Precision Anti-static Tweezers, Marrywindix Tweezers Stainless Steel Tweezers With a Bag for Electronics Jewelry-making Repairing\nESD Tweezers Tools Kit, Precision Anti-static Set of Tweezers, Non-magnetic and Multi-standard Stainless Steel Tweezers with Storage Bag for Lab, Electronics, Jewelry and Detailed Work\nMG Chemicals No Clean Flux Paste, 10 ml Syringe","domain":"optical_engineering"}
{"url":"https://www.365games.co.uk/networking-media-converters/tp-link-tl-fc111pb-20-10-100-mbps-wdm-media-converter-with-1-port-poe-up-to-20km-802-3u-10-100base-tx","date":"2021-07-24T21:07:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150308.48/warc/CC-MAIN-20210724191957-20210724221957-00086.warc.gz","language_score":0.8177963495254517,"token_count":932,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__191970256","lang":"en","text":"10/100Mbps WDM Media Converter with 1-Port PoE\nConverts the data between fiber (optical signal) and copper (electric signal).\nExtends fiber distance up to 20 km.\nThe 802.3af PoE output makes remote camera deployment easier and more convenient.\nWDM (Wave Division Multiplexing) technology enables to transmit and receive data over one single fiber strand instead of two.\nWide operating temperature (0–50C) with reliability.\nAuto-negotiation of Half-Duplex/Full-Duplex transfer mode.\nWhat This Product Does\nTL-FC111PB-20 is a 10/100 Mbps media converter with 802.3af PoE output, providing 1× 10/100 Mbps PoE RJ45 port and 1× 100 Mbps SC fiber port, which can convert between electrical and optical signals. With up to 20 km fiber transmission distance and 802.3af PoE output, the media converter is designed to address the needs of flexible long-range surveillance deployment with optical fibers. It provides an economical path towards extending the distance of an existing network.\nHow This Product Works\nTL-FC111PB-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC111PB-20 transmits data at 1310 nm wavelength and receives data at 1550 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC111PB-20 should send data at a wavelength of 1550 nm and receive data at a wavelength of 1310 nm. TP-Link another media converter TL-FC111A-20 is one of the products that can cooperate with TL-FC111PB-20.\nBesides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.\nWDM Media Converter\nComplies with 802.3u 10/100Base-TX, 100Base-FX standards\nAuto-negotiation of Half-Duplex/Full-Duplex transfer mode\nAdopts WDM technology, transmitting and receiving data on one single fiber\nExtends fiber distance up to 20km\nSupports 802.3af PoE Output, Max 15.4W\n1 x SC fiber optic\n1 x PoE RJ45\nStandards and Protocols\nIEEE802.3, IEEE802.3i, IEEE802.3u\n1310nm Tx/1550nm Rx\nNetwork Media 100BASE-TX\n2-pair UTP/STP of Cat. 5 or above (<100 m)\nPWR, Link/Act, PoE\n94.5 x 73.0 x 27.0 mm\n48 V/0.5 A\nOperating Temperature: 0C~50C (32F~122F)\nStorage Temperature: -40C~70C (-40F~158F)\nOperating Humidity: 10%~90% non-condensing\nStorage Humidity: 5%~90% non-condensing\nChoose how fast you receive your order with the multiple delivery methods we have to offer.Learn about our delivery options\nOur main focus is to provide the best customer service possible to our community.We're here for you\nEvery time you make a purchase at 365games.co.uk we give you 2.5% of the price you paid back in Player PointsSee even more reasons\nFor 15 years we have been working our hardest to ensure that our customers and suppliers can trust us.Learn more about us\nWant to know when TP-LINK (TL-FC111PB-20) 10/100 Mbps WDM Media Converter with 1-Port PoE, up to 20km, 802.3u 10/100Base-TX, 100Base-FX, Single-Mode, Half-Duplex/Full-Duplex drops below a certain price? Enter your email address and price below and we'll let you know when it drops below that price!\nWhy over half a million customers stay with us...\nPlease note that this address is not for correspondence or product returns. If you would like to contact us, please use the form on the contact page.","domain":"optical_engineering"}
{"url":"http://israelonhz111.bloguetechno.com/Eye-Surgical-treatment-6450140","date":"2018-07-16T04:16:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589179.32/warc/CC-MAIN-20180716041348-20180716061348-00350.warc.gz","language_score":0.9573726058006287,"token_count":1308,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__131867426","lang":"en","text":"Eye Surgery has become a mainstream technique of vision correction, and this article will explain the benefits and also downsides of 3 various methods being provided to the medical consumer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis as well as is an eye medical system which permanently deals with vision by getting rid of a slim layer of the cornea. This treatment works best on patients with modest to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) as well as astigmatism connected with nearsightedness, as well as that have thick corneas. It is the most popular surgical vision correction technique.\nPeople with typical eye sight see things clearly due to the fact that images are brought right into a right prime focus by the cornea and lens of the eye. Ideally, the cornea's curvature is evenly matched to its length in a regular eye. Individuals with astigmatism, nearsightedness or hyperopia have irregularly formed corneas, so the things seen are not focused appropriately. LASIK modifications corneal shape by precise elimination of corneal tissue, and by doing so deals with the eyes' concentrating power.\nThere are, however, risks to LASIK eye surgical procedure.\nThere is a remote opportunity of complete loss of vision. If this happens, it is generally since the client had a pre-existing problem which must have precluded the surgical procedure in the first place, such as maternity, cataracts, arthritis, diabetes, glaucoma, or lupus. Individuals with large students are also inadequate candidates for LASIK. Dry eye disorder will certainly be intensified by this treatment.\nA few people complain that they completely see \"ghost\" images, have obscured vision, decreased comparison and poor evening vision. When LASIK was first introduced, 5% of individuals had post-operative grievances; nevertheless, improvements in the procedure have triggered this price to go down to less than 1% if LASIK is done by proficient specialists as well as individuals are effectively screened prior to surgery. If issues do occur, they can typically be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical procedure because 1998. While there are a lot of pleased clients, there are nevertheless no long term research studies regarding its impacts. Recognize the restrictions as well as the risks of LASIK eye surgery prior to you sigh for the treatment.\nThough less well known, these small implants could enhance vision in clients with mild to moderate nearsightedness without the danger of irreversible eye damages intrinsic in the cells elimination strategy of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to assume a flatter form. Though slightly much less exact compared to LASIK, they are removeable as well as replaceable, so if the client has an unforeseen over- or under-correction, the implant can be removed as well as another of a various dimension put to obtain the preferred adjustment. The implants lie beside the cornea, so the main aesthetic location is entirely undamaged and undamaged, and also the stamina of the cornea is undiminished, making it a much better option for pilots as well as those that engage in contact sporting activities where eye injury is a possibility.\nIntacs disagree for serious nearsightedness and more than minor astigmatism (1.00 diopters), as the cornea could just be extended thus far. If the Intacs are gotten rid of, vision returns to its preoperative degree. Aside from vision modification, Intacs are also utilized to treat keratoconus.\nIntacs are FDA authorized as well as 10 year research studies have actually disclosed no significant problems with Intacs and few client issues; nonetheless, since the procedure takes extra training compared to LASIK, there are less eye surgical procedure centers providing it. Nevertheless, the Intacs site provides a checklist of practitioners in each state, too a few in Canada, Europe as well as Mexico.\nBecause lots of people do not want to run the risk of LASIK as well as Intacs could not aid those with extreme vision issues, intraocular lens implants (IOL) are a new alternative authorized by the FDA in 2004 to deal with moderate to extreme nearsightedness. The Craftsmen lens, manufactured by Ophtec, is similar to the type of lens dental implant used to restore vision complying with cataract eye surgical procedure.\nThe brand-new IOL, called the Craftsmen, is intended for just individuals who have 2.5 diopters or less of astigmatism.\nThe synthetic lens does not change the all-natural lens, however is placed before it. The main issue found with the implant was the stable loss of endothelial cells in the corneas of people that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are vital in keeping the cornea clear. A three-year research study revealed a continual stable loss see this of endothelial cells of 1.8 percent a year. Now, no one can anticipate whether this loss will certainly continue at the very same More Help rate indefinitely, or perhaps its impact on corneal function.\nTo lessen lasting results of the device on the corneal endothelium, the FDA is requiring that the brand-new lenses be classified to specify that they must only be dental implanted in patients whose corneal endothelial cells are thick adequate to stand up to small cell loss.\nMuch more major issues were couple of: retinal detachment (0.6%), cataract advancement (0.6%), as well as corneal swelling (0.4%). The FDA is calling for Ophtec to carry out a five-year follow-up study of its dental implant patients to better evaluate the post-surgical occurrence of cataract development, retinal detachment and also other ocular diseases.\nThe Craftsmen lens is meant to be a permanent implant.Though it could be eliminated operatively, vision might not always return to just what it was before getting the lens. Due to the fact that it does not influence astigmatism, individuals with this trouble could still require glasses.","domain":"optical_engineering"}
{"url":"http://www.discountcablesusa.com/cables20.html","date":"2019-11-17T00:49:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668772.53/warc/CC-MAIN-20191116231644-20191117015644-00045.warc.gz","language_score":0.7831982970237732,"token_count":268,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__70959656","lang":"en","text":"Fiber Optic Cables\nWe manufacture and market a wide variety of high performance standard and custom fiber optic cables for voice, data, and video communications\n. Please check below some of the fiber optic cables we offer.\nFiber Optic Patch Cables\nIn addition we supply other premise wiring components, such as:\nCopper Patch Cable Assemblies\nCategory 6 UTP Cable Assemblies - Category 6 System Cable Assemblies with colored matched snagless boots\nEnhanced Category 5 UTP Cable Assemblies - Category 5e System Cable Assemblies with and without colored matched snagless boots\nCategory 5 Cable Assemblies - Category 5 Cable Assemblies with and without colored matched snagless boots, Unshielded and Shielded Twisted Pair\nEthernet Crossover Cable Assemblies - Used to cascade switches and hubs\nWe have high quality requirements and 100% testing of each termination. Please call or request a quote for standard or custom fiber optic cables. Our facility features state-of-the-art equipment to\ndesign and fabricate cables and wire harnesses of many types and standards.\n| Cat5, Cat5E, Cat6, Cat7 Comparison | Premise Wiring | Network Cables |\n| Fiber Optic Cable Assemblies | Mode Conditioning Fiber |","domain":"optical_engineering"}
{"url":"https://eopages.eu/fr/company/rese-applications-llc","date":"2020-05-25T01:00:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347387155.10/warc/CC-MAIN-20200525001747-20200525031747-00415.warc.gz","language_score":0.8986564874649048,"token_count":236,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__86081329","lang":"en","text":"Value adding services (company uses satellite data to generate products),\nDownstream / GIS services (main business not in EO but using satellite data\nReSe Applications Schläpfer is a small Swiss company focused on remote sensing data processing, and specifically on imaging spectroscopy. It was founded in 2000 as a spin-off from the Remote Sensing Laboratories (RSL) of the University of Zurich. The company is owned and run by Dr. Daniel Schläpfer. The major goal is the development and distribution of imaging spectroscopy and remote sensing software. The company expertise is in geometric and atmospheric modeling of radiation in optical remote sensing, as well as the preprocessing of optical remote sensing data. One ground breaking development of ReSe is the PARGE orthorectification software for airborne optical scanner systems. Furthermore, the company successfully advanced the development of the original ATCOR atmospheric correction software packages in close collaboration with the inventor, Dr. Rolf Richter, from DLR. Finally, ReSe is redistributor of the MODTRAN-4 and MODTRAN-5 radiative transfer cod as part of the MODO software.","domain":"optical_engineering"}
{"url":"https://introtocybersecurity.wordpress.com/2017/04/13/79/","date":"2018-06-25T13:27:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267867885.75/warc/CC-MAIN-20180625131117-20180625151117-00015.warc.gz","language_score":0.9237322211265564,"token_count":511,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__169184665","lang":"en","text":"Many early scientists, even Isaac Newton, wrestled with the problem of atmospheric distortion; but the real advances didn’t begin until the 1970s. That’s when the Pentagon was working on something seemingly unrelated to astronomy; it needed a way to focus a laser beam on a distant target, which meant protecting the beam from choppy wind. At the same time, the Defense Advanced Research Project Agency (DARPA), an agency within the Department of Defense, wanted to identify satellites launched by the Soviet Union.\nEven at a good location, atmospheric turbulence smears out details smaller than 1 arcsecond across. That’s good enough to see the cylinder-shaped Hubble telescope, which is similar in size to most spy satellites, but not good enough to make out details. The military needed a way to do better.\nIf scientists could accurately measure how the atmosphere is moving, they could send that information along to a flexible secondary (or tertiary) mirror. In principle, this deform able mirror would exactly cancel distortions introduced by the atmosphere into the primary mirror’s image, sculpting the rays of light (from a satellite or any other target) back to near-perfect alignment.\nOne of the first AO demonstrations was installed in 1980 on DARPA’s telescope in Maui. Today the technology has advanced an amazing amount.\nCompensating for the atmosphere is no easy task. The simplest method calls for a star in the field of view, which would look like a small point if its light could travel undisturbed to the telescope. The atmosphere introduces an extra blur. So keeping a telescope eye on the star gives a measure of atmospheric turbulence.\nThe figure above shows how adaptive optics (AO) works. As starlight shines through Earth’s atmosphere, turbulent air distorts is wavefront. A blurry image results. In a laser guide-star AO system, a sodium laser shoots up to the mesosphere, scattering among the sodium atoms there to create what appears to be a bright yellow star. Computer algorithms measure this artificial star’s wavefront, which is similarly jangled by the time it reaches the ground. The computer then deforms a flexible mirror to return both wavefronts to their undisturbed forms.\nObviously vital in astronomy, this technology is absolutely essential in contemporary intelligence work.\n See Shannon Hall, “Untwinkling the Stars,” Sky and Telescope (131, 5, May 2016, pp. 30-36)","domain":"optical_engineering"}
{"url":"https://neclcd.top/osram-horticultural-lighting-technology-safeguards-global-fresh-food-supply/","date":"2022-12-03T15:04:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710933.89/warc/CC-MAIN-20221203143925-20221203173925-00573.warc.gz","language_score":0.9094072580337524,"token_count":656,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__125460986","lang":"en","text":"Recently, Osram has launched a new generation of Oslon Square Hyper Red high-efficiency horticultural lighting LEDs, dedicated to providing growers with customized lighting solutions, saving planting space and energy consumption while making plants more productive, significantly improving production efficiency and performance. Far more than similar products on the market.\nThe world’s population has grown rapidly in recent years, with metropolitan areas in particular attracting more and more residents. In such places where arable land is limited but timely distribution is necessary, horticultural lighting has significant advantages. Advanced lighting technology can create a specific lighting environment and provide an ideal light source that can promote plant growth, or cultivate plants with certain characteristics. During the dark season, many people experience the effects of insufficient light, and with the shortening of sunshine hours, people are more prone to fatigue and burnout. The same is true for plants – if they don’t get enough light, they can’t photosynthesize efficiently. The growth of plants mainly requires red light (wavelength 640 to 700nm) and blue light (wavelength 400 to 490nm). Among them, red light can increase the output of plant biomass.\nPlant lighting can provide supplemental lighting for areas that lack natural light.\nOsram has expanded its LED product range for horticultural lighting with the new generation of Oslon Square ultra-red light.\nThe new generation of Oslon Square ultra-red light with a wavelength of 660nm is the flagship model of Osram Opto Semiconductors’ full range of horticultural lighting products. In addition to the excellent luminous efficacy value, the new generation of Oslon Square ultra-red light can obtain a radiant flux of 1.030mW at a light conversion rate of 73%, and a current of 700 mA, and the efficiency is as high as 5.0μmol/J. The luminous flux of 7 μmol/s enables greenhouse operators to obtain higher yields. In applications with higher efficiency requirements, the LED can achieve a conversion rate of 78% at a drive current of 350 mA, and a conversion rate of 80% at 250 mA, with an efficiency of 4.6 μmol/J. In addition to top efficiency values, the new generation of Oslon Square ultra-red light has a long service life of more than 100,000 hours and can withstand high temperature environments. This surface-mountable part also features a ceramic package and a solid silicone lens.\nYong Sheng Chew, Product Manager at Osram Opto Semiconductors, said: “The horticultural lighting market is booming, and by continuously optimizing and offering newer products, we have maintained a leading position in this market. The significant increase in efficiency values will effectively help customers save energy. The latest Oslon Square Ultra Red LEDs feature a compact 3.0mm x 3.0mm design size, allowing greenhouse owners to easily retrofit existing lighting systems.”\nOsram’s horticultural lighting technology not only helps growers produce fresh, pesticide-free food in small spaces, but also provides consumers living in cities with faster access to fresh and healthy food.","domain":"optical_engineering"}
{"url":"https://lightbarsupply.com/products/mega-led-bundle-free-shipping","date":"2018-02-21T08:44:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813602.12/warc/CC-MAIN-20180221083833-20180221103833-00342.warc.gz","language_score":0.6625064611434937,"token_count":439,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__112801486","lang":"en","text":"LED Mega Bundle - FREE Shipping!\nThe ULTIMATE LED Light Bar Bundle!\nSave over $600 today!\nLightBarSupply.com is offering our biggest LED bundle yet! With over 300,000 Facebook followers and thousands of happy customers you get the BEST prices on the BEST LEDs!\nWhat You Get\n1x 52\" Straight LED Light Bar\n4x 4\" LED Pods\n1x 20\" Bottom Mount LED Bar\n1x Wiring Harness\n...Plus FREE SHIPPING!\nSatisfaction Guaranteed With Every Order.\n- 18000 Lumens\n- Spot/Flood Combo\n- 30,000+ Hour LED Life\n- IP67 Waterproof Certification\n- 10-30 DC\n- 300 Watt LED Power\n- 6000k Bright White Color Temperature\n- High-Grade Die-cast Aluminum Housing\n- 30 Degree Spot & 60 Degree Flood Combo\n- 100 x 3 Watt High Intensity Epistar LEDs (50\" without brackets)\nLED Pod Info\nTheoretical Lumens Output: 1800 LM\nOperating Lumens Output: 1260 LM\nLED: 4pcs*3W (Epistar LED)\nLED color temperature: 5000K, 6500K\nWorking life: 50000 hours\nWorking temperature: 85\nWaterproof rate: IP67\nMaterial: 6063 aluminum profile, stainless steel bracket, PC Lens\nModel: 20” led light bar\nLED Power: 126w\nOperating Voltage: 9-32V DC\nWaterproof rate: IP 68\n42pcs*3w high intensity Epistar LEDS\nBody Color: Black\nColor Temperature: 6000K\nMaterial:Diecast aluminum housing\nLens material: PC\nMounting Bracket: Alu firm bracket\n50000 hours above life time .\nBeam: Spot & Flood Combo beam\n- DC12V 40A rated automotive relay\n- Can be assembled with a DC 24V relay ( not supplied)\n- Blade use holder with replaceable 30A fuse\n- Up to 2M of wiring, terminal ends on wires\n- On/Off Switch with adhesive backing","domain":"optical_engineering"}
{"url":"http://www.nest-g.com/wireless-alarm-systems-for-homes.html","date":"2022-08-12T06:21:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571584.72/warc/CC-MAIN-20220812045352-20220812075352-00187.warc.gz","language_score":0.9496724605560303,"token_count":177,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__38581140","lang":"en","text":"The best way to understand how motion detection works is to first look at how a camera functions. Inside every camera is the image sensor which the lens of the camera directs light to. The moment light reaches the image sensor, pixels then record how much light they receive. These dark and light areas then form the video images that we see. Motion detection works by comparing successive video images. So if the pattern of light changes between frames a change in pixels the smart camera concludes that something has moved and starts to record. As it begins to record, it also sends you an alert. The camera determines when enough has changed based on the motion detection settings see below. There are different methods of motion detection, i. e. infrared heat vision and microwave.\nPrivate security as it is known in its current conception in the U.\nwireless alarm systems for homes\nenterprise wide security.","domain":"optical_engineering"}
{"url":"http://www.armasight-international.com/accessories/digital-night-vision/armasight-prime-d-5x","date":"2018-05-26T23:21:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867949.10/warc/CC-MAIN-20180526225551-20180527005551-00194.warc.gz","language_score":0.8973428010940552,"token_count":580,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__195907547","lang":"en","text":"Armasight’s by FLIR extra long-range infrared illuminators provide greater, image-intensified viewing capabilities for operations in little to no ambient light.\nInfrared illuminators are used in areas where the level of natural light is not sufficient. An IR illuminator provides near-infrared light, which, although invisible to the naked eye, can greatly enhance the performance of Night Vision devices. The illuminator features adjustments for field-of-view divergence and output power. Armasight by FLIR long-range IR illuminators significantly extend the capabilities of Night Vision weapon sights and observation devices.\nThe powerful XLR-IR850 model comes standard equipped with a rechargeable battery and charger unit. An Optional A-Focal Doubler for XLR-IR850 doubles the distance of IR beam for ultra long-distance observation.\nOur infrared illuminators provide wide-range beam angle adjustment, which drastically improves the performance of the IR illuminator and extends the user’s nighttime visibility range.\nАccessory kit consists of XLR-IR850 Detachable X-Long Range Infrared Illuminator, Rechargeable Battery, and Charger.\nThe HD DVR is a high-performance, high-definition digital video recorder (DVR). It adjusts for H.264 video compression, single channel resolution up to 720*576, 30fps, and is areal-time, easily-operated, professional DVR that consumes minimal power. It includes powerup recording functionality as well as motion detection and manual recording options. The SD card holds up to 32 GB expandable, and is enabled or direct TV, monitor, and PC playback using an SD card reader.\nThe HD DVR is lightweight but durable and robust. the DVR has a 1/4”-20 thread that allows you to mount it anywhere.\nHD-DVR Kit Includes:\nHigh-performance, high-definition digital video recorder (DVR). It adjusts for MPEG-4 video compression, single channel resolution up to D1(704*576), 30fps, and is a real-time, easily-operated, professional DVR that consumes minimal power. It includes power-up recording functionality as well as motion detection, scheduled, and manual recording options. The SD card holds up to 32GB expandable, and is enabled or direct TV, monitor, and PC playback using an SD card reader. The Recorder DT is lightweight but durable, robust, and designed to fit any Armasight by FLIR Digital or Thermal scope, Picatinny MIL-STD-1913, or Weaver rail. The rubber mount ensures quick, easy and reliable mounting and disassembly.\nQuick detachable, multiple eye relief mounting base that attaches to weaver type rail and flat-top receivers.","domain":"optical_engineering"}
{"url":"https://rfic-ieee.org/paper_abstract/1228","date":"2024-04-14T11:39:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00743.warc.gz","language_score":0.8913135528564453,"token_count":161,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__9271657","lang":"en","text":"Skip to main content\nSilicon Photonics for Solid-State LiDAR and Beyond\nBy enabling the integration of millions of micro-scale optical components on compact millimeter-scale computer chips, silicon photonics is positioned to enable next-generation optical technologies that facilitate revolutionary advances for numerous fields spanning science and engineering. An emerging class of silicon photonic systems is integrated optical phased arrays (OPAs), which enable manipulation and dynamic control of free-space light in a compact formfactor, at low costs, and in a non-mechanical way. In this talk, I will highlight our work on developing novel OPA-based platforms, devices, and systems that enable chip-based solutions to high-impact problems, with a focus on solid-state LiDAR sensors for autonomous systems.","domain":"optical_engineering"}
{"url":"http://m.yfychemical.com/info/a-brief-introduction-of-barium-nitrate-crystal-20766114.html","date":"2021-04-22T23:24:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039563095.86/warc/CC-MAIN-20210422221531-20210423011531-00519.warc.gz","language_score":0.9116989970207214,"token_count":235,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__203145674","lang":"en","text":"Under certain conditions, the scattering light has the properties of stimulated emission and is coherent radiation, which is called stimulated Raman scattering effect (SRS). Barium nitrate crystals are one of the most excellent solid-state materials with stimulated Raman scattering effect, and the frequency of pumped lasers can be transformed into many different spectral ranges.\nBarium nitrate crystals, as Raman frequency shift components, can efficiently convert Nd: YAG lasers 1.318-1. The output of 338μm is converted to 1.535-1.556μm beam, the Output light field uniformity is better than the pump light and the peak width becomes narrower. 1.535-1. The 556μm wavelength is the air window, and the human eye is safe, it is very suitable for the LiDAR of the range finder, and it is also the excellent functional material of optical fiber communication and space free communication.\nMain use: Barium nitrate crystals have an important use in health care, but also a kind of excellent Raman conversion material, and also a good functional material for optical fiber optics communication and space free communication.","domain":"optical_engineering"}
{"url":"https://www.asiaresearchnews.com/html/article.php/aid/1212/cid/2/research/technology/nature_publishing_group/caged_light.html","date":"2021-12-08T15:34:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363515.28/warc/CC-MAIN-20211208144647-20211208174647-00223.warc.gz","language_score":0.8898104429244995,"token_count":2073,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__96935958","lang":"en","text":"PRESS RELEASE FROM NATURE PHOTONICS\nThis press release is copyrighted to Nature Photonics.\nA PDF of the paper mentioned on this release can be found in the relevant journal’s section of http://press.nature.com. Press contacts for the Nature journals are listed at the end of this release.\nPLEASE CITE Nature PHOTONICS AND THE Nature PHOTONICS WEBSITE AS THE SOURCE OF THE FOLLOWING ITEM. IF PUBLISHING ONLINE, PLEASE CARRY A HYPERLINK TO www.nature.com/nphoton\n Caged light\nLight likes to keep on moving no matter what. But researchers have built an optical cage that can temporarily catch light and release it again, they report in the January issue of Nature Photonics. The development is an important step towards solid-state optical memory devices that may ultimately play a crucial role in ultra-fast optical communication networks or optical computers.\nTakasumi Tanabe and colleagues use a photonic crystal – a piece of silicon riddled with tiny holes – to create an optical cavity that can store light particles for more than a billionth of a second. This may not seem very long, but the beauty of these structures is in their size. Photonic crystals are man-made structures that can control the flow of light on the very smallest length scale possible – down to the wavelength of the waves. The team’s cavity is less than ten millionths of a metre long and made from silicon, which means that it could be integrated into miniature optical chips that can process light in the way microelectronics processes electrons.\nThe temporary storage effect means that light travelling through the cage is effectively slowed down to a speed of just 5.8 km per second, 50,000 times slower than in a vacuum. This is the slowest speed ever measured in an insulator material.\nTakasumi Tanabe (NTT Basic Research Laboratories, Kanagawa, Japan)\nTel: +81 46 240 4825; E-mail: [email protected]\n Optical buffer on a silicon chip\nBy exploiting state of the art semiconductor manufacturing technology, scientists have created an optical buffer memory on a miniature silicon chip. The device – a kind of temporary storage area for light signals that works by slowing them down – is described in the January issue of Nature Photonics. Once optimized, it could help future optical networks to synchronize different data streams without needing to convert the signals into the electronic domain.\nThe optical buffer is made by connecting together a string of up to 100 tiny silicon ring waveguides – tiny oval racetracks with a perimeter of just 55 micrometres. By experimenting with various designs, Yurii Vlasov and colleagues have shown that it is possible to create a buffer with a total footprint of less than 0.1mm squared that is able store up to 10 bits of information at data-rates of up to 20Gbit per second.\nAlthough silicon ring waveguides have been reported before, Vlasov’s team is the first to show that it is possible to make a device from such a large number of rings, and to test its compatibility with real data at gigabit speeds. Although further work is needed to reduce the losses and increase the delay/storage time of the buffer, the work is an important demonstration of the future potential of nanophotonics.\nYurii Vlasov (IBM Thomas J Watson Research Center, Yorktown Heights, NY, USA)\nTel: +1 914 945 2028; E-mail: [email protected]\n Blue microdisk lasers hit room temperature\nVery small and efficient sources of blue laser light could now be on the horizon thanks to the demonstration of the first gallium nitride (GaN) microdisk laser to offer continuous operation at room temperature. In the January issue of Nature Photonics Adele Tamboli and colleagues reveal how they attain the lasing with blue (428nm) light at a threshold of 300 Watts per square centimetre – several orders of magnitude lower than previously reported devices. Until now, GaN microdisks have been limited to pulsed operation or have required cooling to low temperatures.\nMicrodisk lasers are attractive future sources of light because they are potentially very efficient, small and emit from their top surface rather than the side. With their knowledge that small, smooth microdisks should offer ultra low thresholds, the researchers fabricated microdisks with a diameter of 1.2 micrometres using photoelectrochemical etching, and used electron beam lithography to create very smooth sidewalls.\nThe development is a step towards the realization of tiny, efficient sources of blue light that could perhaps one day act as an alternative to the conventional edge-emitting semiconductor lasers found in CD and DVD players. But before this can happen, a scheme for directly electrically powering the lasers needs to be found as they currently need another laser as a pump source to power themselves.\nAdele Tamboli (University of California, Santa Barbara, CA, USA)\nTel: +1 805 448 7560 or +1 805 893 4875; E-mail: [email protected]\nAdditional contact for comment on paper:\nShuji Nakamura (University of California, Santa Barbara, CA, USA)\nTel: +1 805 893 5552; E-mail: [email protected]\n Optical devices lose their sensitive side\nTruly useful optical devices built onto microchips are a step closer to becoming a reality, thanks to the work of Tymon Barwicz and colleagues. In the inaugural issue of Nature Photonics, the team describes a way of producing tiny optical devices that process incoming light correctly even if it has a randomly-oriented electric field. They achieve this despite the fact that the individual components making up the device are very picky about the field orientation.\nMost devices that control light inside microscopic spaces are, unfortunately, extremely sensitive to the orientation of the light. This limits the usefulness of the technology. Barwicz and co-workers overcome this sensitivity with the aid of a clever miniature photonic circuit. Their circuit splits a light beam into its two constituent perpendicular orientations, rotates one orientation, and recombines the beams after forcing them to pass through identical optical devices. Essentially by aligning the orientation of both beams within the circuit, the initial direction of the field becomes irrelevant and the sensitivity no longer matters.\nFor the trick to work, Barwicz and co-workers had to design intricate splitters and rotator components and make use of advance manufacturing techniques. By overcoming this barrier, they move us along the path to optical devices that can be integrated onto tiny chips in a big way.\nTymon Barwicz (IBM Thomas J Watson Research Center, Yorktown Heights, NY, USA)\nTel: +1 914 945 3454; E-mail: [email protected]\n Follow the light\nMapping the orientation of light fields on a microscopic scale is shown to be possible for the first time in the first issue of Nature Photonics. Light is made up of fields with a direction as well as an intensity. Most optical probes measure only the strength of the field. But Kwang Geol Lee and colleagues have built a microscope that allows the direction of the electric field to be captured down to a nanometre scale.\nTheir device contains a nano-sized gold particle attached to the tip of a glass fibre. By scanning the tip along the surface of an object and capturing light that is scattered off the nanoparticle, they can create an image of the sample and uncover features smaller than the wavelength of the light. Lee and co-workers insert a polarizer just in front of the imaging camera that allows them to identify the components of the electric field.\nThis new way of ‘seeing’ light tells us how light behaves near very tiny objects. It could help in the design of miniature optical components, or lead to new biosensors, where light interacts with biological molecules in different ways depending on the orientation of the electric field.\nDaiSik Kim (Seoul National University, Korea)\nTel: +82 2880 8174; E-mail: [email protected]\nRuth Francis, Nature London\nTel: +44 20 7843 4562; E-mail [email protected]\nKatherine Anderson, Nature London\nTel: +44 20 7843 4502; E-mail: [email protected]\nFor media inquiries relating to editorial content/policy for Nature Photonics, please contact the journal directly:\nOliver Graydon Nature Photonics (Tokyo)\nTel: +81 332 678 776; Email: [email protected]\nAbout Nature Publishing Group\nNature Publishing Group (NPG) is a division of Macmillan Publishers Ltd, dedicated to serving the academic, professional scientific and medical communities. NPG's flagship title, Nature, was first published in 1869. Other publications include Nature research journals, Nature Reviews, Nature Clinical Practice and a range of prestigious academic journals including society-owned publications. NPG also provides news content through [email protected] and scientific career information through Naturejobs.\nNPG is a global company with headquarters in London and offices in New York, San Francisco, Washington DC, Boston, Tokyo, Paris, Munich, Hong Kong, Melbourne, Delhi, Mexico City and Basingstoke. For more information, please go to www.nature.com","domain":"optical_engineering"}
{"url":"https://thegolfstore4u.co.uk/product/longridge-800s-laser-distance-finder/","date":"2020-11-29T17:24:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141201836.36/warc/CC-MAIN-20201129153900-20201129183900-00625.warc.gz","language_score":0.8404080271720886,"token_count":223,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__180865087","lang":"en","text":"Longridge 800S Laser Distance Finder Only £159.00\nLongridge 800S Laser\nThe Longridge 800-S Laser Distance Finder is the latest in a range of premium distance measurers, allowing you to gain the accurate distance of any object or location within 800 meters.\n- Use the one touch scan function to pan the landscape while viewing a continually updated distance with the through-the lens LCD distance display.\n- The 6x magnification allows you to accurate pin point the object you want to scan, with eye-piece focussing to ensure a crisp image.\n- The Range Finder is adapted with the latest digital circuit design and optical system that is superior to other models in lens quality and reliability.\n- The Longridge 800-S is suitable for a range of outdoor activities, including golf, hunting, hiking surveying and sailing.\n- One touch scan allows you to pan across the landscape while viewing a continually updated distance.\n- Size: H13.9cm, W17.3cm, D6.6cm.\n- Manufacturer’s 2 year guarantee.","domain":"optical_engineering"}
{"url":"https://www.lanyimedical.com/Instant-Read-Infrared-Thermometer-For-Baby-Kids-pd43145795.html","date":"2023-02-08T17:24:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500837.65/warc/CC-MAIN-20230208155417-20230208185417-00195.warc.gz","language_score":0.6975476741790771,"token_count":375,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__40070287","lang":"en","text":"1. Product Name:\nNon-Contact Forehead And Ear Infrared Thermometer\n2. Product Description:\n(1) This infrared thermometer is used for measuring the temperature of the object's surface, which is applicable for various hot, hazardous or hard-toreach objects without contact safely and quickly.\n(2) This unit consist of Optics, Temperature Sensor Signal amplifier, Processing circuit and LCD Display. The Optics collected the infrared energy emitted by object and focus onto the Sensor. Then the sensor translates the energy into an electricity signal.This signal will be turned out to be digital shown on the LCD after the signal amplifier and processing circuit.\n|Measurement Range||Body mode:32~42.5°C(89.6°F~108.5°F) Surface mode:0°C~100°C(32°F~212°F)|","domain":"optical_engineering"}
{"url":"https://www.industriprint.com/key-services/tolerances","date":"2019-09-17T05:21:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573052.26/warc/CC-MAIN-20190917040727-20190917062727-00261.warc.gz","language_score":0.8847032785415649,"token_count":104,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__13312318","lang":"en","text":"We have invested in an advanced DeMeet 400 optical measuring device.\nIf there are requirements for documentation of measurement tolerances, then we have our own optical measuring machine that can handle the task.\nWith this device we can provide proven quality products that require very fine tolerances. We can deliver and document the tolerances that fit your task.\nThe resolution of the DeMeet 400 is: 0.5 μm (0.0005 mm) and the maximum format is: 400x250 mm (XY)","domain":"optical_engineering"}
{"url":"http://apkcorp.com/apps/huepar-apk-download-free-for-android/","date":"2020-09-25T04:22:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400221980.49/warc/CC-MAIN-20200925021647-20200925051647-00287.warc.gz","language_score":0.7945165634155273,"token_count":109,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__83507500","lang":"en","text":"The software is mainly used to control the laser light switch of the machine and display related product information.\n1. Fix the display abnormality of Dobiy series laser instrument.\nTags: download Huepar 1.5.0, Huepar, Huepar 1.5.0, Huepar 1.5.0 apk\nYour email address will not be published. Required fields are marked *\nSave my name, email, and website in this browser for the next time I comment.\nCopyright© 2020 ApkCorp.com","domain":"optical_engineering"}
{"url":"https://jap.alzahra.ac.ir/article_5914.html","date":"2021-11-27T03:49:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358078.2/warc/CC-MAIN-20211127013935-20211127043935-00385.warc.gz","language_score":0.6702432632446289,"token_count":872,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__7996589","lang":"en","text":"Sarid D., Challener W.A., Modern Introduction to Surface Plasmons Theory, Mathematica Modeling, and Applications, 1st ed., Cambridge University Press, New York, 122-125, 2010.\n Kabashin A.V., Patskovsky S., Grigorenko A.N, Phase and amplitude sensitivities in surface plasmon resonance bio and chemical sensing, Optics Express, 17, 21191-21204, 2009.\n Wu C., Jian Z., Joe S., Chang L., High-sensitivity sensor based on surface plasmon resonance and heterodyne interferometry, Sensors and Actuators B: Chemical, 92, 133-136, 2003.\n Kabashin A.V., Kochergin V.E., Beloglazov A.A., Nikitin P.I., Phase-polarisation contrast for surface plasmon resonance biosensors, Biosensors and Bioelectronics, 13, 1263–1269, 1998.\n Naraoka R., Kajikawa K., Phase detection of surface plasmon resonance using rotating analyzer method, Sensors and Actuators B, 107, 952–956, 2005.\n Su D.C., Chiu M.H., Chen C.D., Simple two-frequency laser, Precision Engineering, 18, 161–163, 1996.\n Kuo W.K., Chang C.H., Phase detection sensitivity enhancement of surface plasmon resonance sensor in a heterodyne interferometer system, Applied Optics, 50, 1345–1349, 2011.\n Hsieh M., Liao C., Lin J., Optical relative humidity sensor based on a polyvinyl alcohol film and a phase-enhancement total-internal-reflection heterodyne interferometer, Sensors and Actuators A: Physical, 316, 112412, 2020.\n Wu C.M., Pao M.C., Sensitivity-tunable optical sensors based on surface plasmon resonance and phase detection, Optics Express, 12, 3509-3514, 2004.\n Lee .J.Y., Mai L.W., Hsu C.C., Sung Y.Y., Enhanced sensitivity to surface plasmon resonance phase in wavelength-modulated heterodyne interferometry, Optics Communication, 289 ,28–32, 2013.\n Aref S.H., Mahjor F., Phase shift mesurement in surface plasmon resonance sensor by the common-path polarization heterodyne interferometer, J. Res. Many. Sys., 8, 121-127, 2018. (in Persian)\n Aref S.H., SPR phase sensitivity enhancement in common-path polarization heterodyne interferometer by polarization tuning, Optik, 156, 619-627, 2018.\n Fallah N., Aref S.H., Increasing the phase sensitivity of the surface plasmon resonance in common-path interferometry, 26th Iranian conference on optics and photonics and 12th Iranian conference on engineering photonics, Kharazmi University, Karaj, 4-5 February 2020. (in Persian)\n Peyghambarian, N., Koch, S.W., Mysyrowicz, A., Introduction to Semiconductor Optics (Prentice Hall Series in Solid State Physical Electronics), 1st ed., Pearson College Div., 72-80, 1993.\n Gwon H.R., Lee S.H., Spectral and angular responses of surface plasmon resonance based on the Kretschmann prism configuration, Materials transactions, 51, 1150-1155, 2010.\n Wang S.F., Chiu M.H., Lai C.W., Chang R.S., High-sensitivity small-angle sensor based on surface plasmon resonance technology and heterodyne interferometry, Applied Optics, 45, 6702-6707, 2006.","domain":"optical_engineering"}
{"url":"http://www.movingbrands.com/news/a-photograph-is-a-moment-light-is-forever/","date":"2018-06-22T20:20:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864795.68/warc/CC-MAIN-20180622201448-20180622221448-00403.warc.gz","language_score":0.9387869238853455,"token_count":374,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__39240708","lang":"en","text":"Two cameras launch this month, each offering a completely polarised view of what a camera can be.\nThe Impossible Project, the company responsible for saving Polaroid’s Type 600 instant film format, will release its first instant camera on May 10th. The I-1 can handle Polaroid film, but also offers a host of advanced features, such as full manual control through its bluetooth-enabled companion app. It joins the Instant Lab smartphone Polaroid printer released in 2013. Both devices aim to re-emphasise the immediacy and physicality of film photography.\nIn contrast, the newly launched Lytro Cinema captures as much detail of a scene as possible, enabling users to change the fundamental makeup of video footage long after it has been taken. Lytro’s light field technology captures a huge, 3D picture of the scene, running at 755 RAW megapixels at up to 300 frames every second. With the resulting depth information, it’s easy for filmmakers to change the focus, composition, or backgrounds of the scene.\nJimmy Irwin, MB Senior Motion Designer, thinks the Lytro “could change everything. Lytro’s previous light field stills cameras have been an interesting development, but when applied to moving image, this technology really comes into its own. Previously, footage has always been a two-dimensional medium, so when combined with computer generated imagery, concessions had to be made. This new camera will open up new ways for footage to be combined with CGI, further blurring the line between what is captured in camera, and what is created digitally.”\nAlthough the Lytro Cinema isn’t available to buy yet, rental packages start at a cool $125,000.\nThis originally appeared in Moving Brands Wednesday 20160413.\nSubscribe to Moving World Wednesday here.","domain":"optical_engineering"}
{"url":"https://themartinnews.com/ai-and-brainwaves/","date":"2023-06-02T19:11:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648850.88/warc/CC-MAIN-20230602172755-20230602202755-00029.warc.gz","language_score":0.9365326762199402,"token_count":475,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__65512144","lang":"en","text":"The future has arrived, and it is as cool and terrifying as you could have expected.\nI’ve always ranked X-ray vision quite low on my list of desired superpowers, much behind time travel and mind reading. However, x-ray vision may be closer to reality than the other possibilities, so I’ll take it. Using a combination of artificial intelligence and human brainwaves, researchers at the University of Glasgow are attempting to identify items that humans cannot ordinarily see because they are around corners. This “ghost imaging” device will be demonstrated this month at the Optica Imaging and Applied Optics Congress.\nDaniele Faccio, a professor of quantum technologies in the faculty of physics and astronomy at the University of Glasgow, told Optica, “We feel that this work presents ideas that could one day be utilized to bring together human and artificial intelligence.” “The next steps in this project range from expanding the capability to deliver 3D depth information to searching for ways to merge multiple data from multiple viewers simultaneously.”\nAccording to New Atlas, the research is part of non-line-of-sight imaging, an area of technology that enables individuals to perceive concealed things. It is sometimes necessary to beam laser light onto a surface, which sounds a lot like a power Superman may possess.\nHowever, Faccio’s experiment involved projecting an object onto a cardboard cutout. A person wearing an electroencephalography headset to monitor their brainwaves can only see diffused light on the wall rather than the projected light patterns. The EEG helmet analyzes signals in the individual’s visual cortex, which are subsequently transmitted to a computer, which identifies the object using artificial intelligence and the individual’s brainwaves. In around one minute, the researchers were able to reconstitute 16 x 16-pixel images of simple things that humans couldn’t see through the obstruction.\n“This is one of the first occasions that computational imaging has been conducted utilizing a neurofeedback loop that changes the imaging process in real-time,” Faccio added. “Although we could have substituted a normal detector for the human brain to detect the wall’s diffuse signals, we wanted to investigate ways that could one day be used to boost human capabilities.”","domain":"optical_engineering"}
{"url":"http://www1.beiermopana.com/top/33522.html","date":"2022-10-07T23:10:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030338280.51/warc/CC-MAIN-20221007210452-20221008000452-00036.warc.gz","language_score":0.9404064416885376,"token_count":621,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__105059697","lang":"en","text":"Wuhan coating industry and optical fiber industry industry supporting problems highlight\nWuhan coating industry and optical fiber industry supporting problems highlight\nDecember 28, 2012\n[China coating information] Wuhan is the largest production base of optical fiber in China, with an annual output of more than 35 million core kilometers of optical fiber, accounting for 40% of the total output of the country. The annual demand for optical fiber coating is about 2million tons, all of which are purchased from Jiangsu, Zhejiang, Beijing and abroad\na person from Wuhan Fiberhome technology group told: \"at present, the biggest difficulty faced by Wuhan's optical fiber industry is mainly reflected in the industrial supporting problems, not only high-end, optical fiber outer coating, which no large-scale enterprise in Wuhan can provide. Therefore, we can only purchase from Jiangsu and Zhejiang regions or abroad, which directly leads to the increase of transportation costs and the extension of supply cycle.\"\nit is understood that in the optical fiber manufacturing industry, the cost of optical fiber coating is only second to that of optical rods, accounting for about 10% of the total cost of raw materials. According to the calculation that 55 grams of coating is needed to produce one core kilometer of optical fiber, Wuhan local optical fiber enterprises alone create a huge market of nearly 20 billion yuan every year\nChangfei optical fiber and cable Co., Ltd. said: \"as early as the main adjustment of the spot market of steel raw materials on September 29, 209, in 2008, the optical fiber coating produced by Hubei Chemical Research Institute was tried. However, due to the large particles and more impurities, it was not selected in the end.\"\nshe Wanyun, a chemical research institute who once participated in the development of optical fiber coatings, told: \"we have studied optical fiber coatings since the 1980s, and the production line has invested tens of millions of yuan. If it is produced at full capacity, it can meet the needs of local coatings.\"\non the one hand, it is like the \"ardent expectation\" of the balance weighing optical fiber enterprise, on the other hand, it is the \"ambition is difficult to extend\" of the coating R & D unit. Industry insiders analyzed: \"to solve the long-standing problem of industrial supporting, both supply and demand sides need to make efforts. Optical fiber enterprises should give opportunities. There are no technical difficulties in coating, but industrial production generally requires a month of running in period; coating enterprises should not passively 'wait for the market', but should actively improve technology 'grab the market'.\"\naccording to a person from Wuhan Information Industry Office, \"in many industrial parks, we don't need to detect the material structure. In the early stage of investment attraction, we can give the revised value under the banner of 'industrial supporting', but it is difficult to implement in practical work, because indicators such as return rate and tax amount cover the needs of industrial supporting.\"","domain":"optical_engineering"}
{"url":"https://www.tlcfabrik.com/cisco/13983-ws-g5486-tlc-cisco-ws-g5486-compatible-1000base-lx-gbic-1310nm-10km-dom-transceiver-module.html","date":"2020-09-23T05:52:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400209999.57/warc/CC-MAIN-20200923050545-20200923080545-00313.warc.gz","language_score":0.8369888067245483,"token_count":194,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__20165949","lang":"en","text":"The GBIC transceiver is high performance, cost effective module supporting dual data-rate of 1.25Gbps/1.0625Gbps and from 10km transmission distance with SMF. The transceiver consists of two sections: The transmitter section incorporates a FP laser. And the receiver section consists of a PIN photodiode integrated with a trans-impedance preamplifier (TIA). All odules satisfy class I laser safety requirements. The optical output can be disabled by a TTL logic high-level input of Tx Disable. Tx Fault is provided to indicate degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver. The standard serial ID information Compatible with GBIC MSA describes the transceiver’s capabilities, standard interfaces, manufacturer and other information. The host equipment can access this information via the two-wire serial CMOS EEPROM protocol.","domain":"optical_engineering"}
{"url":"https://www.saanichnews.com/news/space-telescope-to-explore-earliest-galaxies-thanks-to-work-of-greater-victoria-scientists-310058","date":"2024-04-19T00:40:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817249.26/warc/CC-MAIN-20240418222029-20240419012029-00604.warc.gz","language_score":0.9629376530647278,"token_count":677,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__148993648","lang":"en","text":"Astronomers around the world received a spectacular Christmas present this year as the James Webb Space Telescope successfully blasted off and started its mission which will eventually provide humanity’s best look yet at the deepest reaches of space.\nBut for a team of scientists in Greater Victoria, the launch meant much more. It meant decades of work had paid off, and they will soon get one of the first chances to use the new cutting-edge technology.\nThe telescope is a joint project between NASA, the European Space Agency and the Canadian Space Agency, but much of the science work for two key pieces of the $10 billion spacecraft was done by Dr. Chris Willot and his colleagues at the Herzberg Astronomy and Astrophysics Research Centre in Saanich.\n”It’s been very exciting, but it was really nervy watching the beginning part of the launch,” said Willot. “At every stage, things seemed to be going well, so it was a relief for sure. The really great thing about this launch was the cameras on the rocket, which they don’t usually do … we got to actually see the telescope leaving [the rocket] and then a couple minutes later, the solar panel opened and we got to see it all deployed. That was really exciting to me.”\nWillot currently serves as the project scientist for Canada’s contribution to Webb, co-leading the team with principal investigator Dr. Rene Doyon with the Universite de Montreal.\nThe team provided expertise to the CSA, helping to guide the scientific goals of the telescope and designs of its fine guidance sensor, which allows the telescope to navigate, locate and lock-on to targets to observe, and the near-infrared imager and slitless spectrograph, one of four devices used to observe and study distant objects.\nWhile Willot joined the Webb team in 2006, the Herzberg centre has been involved since the very early stages of the project 25 years ago.\nIn addition to helping to guide the design and objectives for Webb, Willot said he and his team will also maintain Canada’s archive of all data collected by the telescope, helping to ensure it is accessible to scientists around the world, just as they have been doing for the Hubble Space Telescope since its launch in 1990.\nBut it’s the potential for future research once the telescope becomes operational in the summer that excites Willot the most, and scientists at the Herzberg centre will be among the first to use the telescope.\n“My own research area is in the very early universe, looking for the first galaxies,” he said. “I’m leading one of the two large Canadian projects … we know that galaxies early in the universe are quite different from the galaxies we see today, so we are trying to trace the whole evolution of galaxies.”\nWillot said Webb will be able to observe these distant objects in finer detail than previous space telescopes such as Hubble thanks to its larger size and its orbit further away from Earth’s surface.\n“With a mission like this, we will undoubtedly discover a lot of new things in the first few years which will challenge our understanding of the universe.”","domain":"optical_engineering"}
{"url":"http://www.canterbury.ac.nz/engineering/contact-us/people/phil-bones.html","date":"2018-05-25T07:05:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867046.34/warc/CC-MAIN-20180525063346-20180525083346-00274.warc.gz","language_score":0.6593209505081177,"token_count":359,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__199765370","lang":"en","text":"Qualifications & Memberships\nResearch interests include:-Image processing, in particular recovery of images by deconvolution, astronomical speckle imaging, medical imaging-Machine vision -Biomedical signal processing, especially EEG and ECG\n- Bones P., King L. and Millane R. (2017) MR imaging near metal: The POP algorithm. In International Conference Image and Vision Computing New Zealand http://dx.doi.org/10.1109/IVCNZ.2016.7804436.\n- Bones PJ., King LJ. and Millane RP. (2017) Use of (N-1)-D expansions for N-D phase unwrapping in MRI. In Proceedings of SPIE - The International Society for Optics and Photonics 10410 http://dx.doi.org/10.1117/12.2275878.\n- Knopp S., Bones P., Weddell SJ. and Jones R. (2017) A software framework for real-time multi-modal detection of microsleeps. Australasian Physical and Engineering Sciences in Medicine\n- Wojtas DH; Millane R; Bones P; Green R (Ed.) (2017) International Conference of Image and Vision Computing New Zealand (IVCNZ) 2017. New Zealand.\n- Chen JPJ., Arnal RD., Morgan AJ., Bean RJ., Beyerlein KR., Chapman HN., Bones PJ., Millane RP. and Kirian RA. (2016) Reconstruction of an object from diffraction intensities averaged over multiple object clusters. Journal of Optics (United Kingdom) 18(11) http://dx.doi.org/10.1088/2040-8978/18/11/114003.","domain":"optical_engineering"}
{"url":"http://www.sopoconf.org/2017/SOPO/89s2259.html","date":"2017-02-19T17:03:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170186.50/warc/CC-MAIN-20170219104610-00470-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9451800584793091,"token_count":227,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__46893540","lang":"en","text":"Prof. Xuewen Shu\nWuhan National Laboratory for Optoelectronics, China\nDr Xuewen Shu received his Ph.D. degree in optoelectronics from Huazhong University of Science and Technology, Wuhan, China, in 2000. From 2000 to 2001, he was a Visiting Research Fellow with the Photonics Research Group at Aston University, Birmingham, UK. Then, he spent two years with Indigo Photonics Ltd., UK, as a Photonics Development Engineer and a Senior Engineer from 2001 to 2003. From 2003 to 2013, worked as a Senior Research Fellow with the Aston Institute of Photonic Technologies at Aston University, UK. In 2013, he joined Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology as a full-professor, under the support of \"Thousand Youth Talents\" program from Chinese government. He has published over 150 papers in major international journals and conferences and also holds several European and U.S. patents. His research interests include fiber gratings, optical fiber communications, fiber lasers and optical sensors.","domain":"optical_engineering"}
{"url":"https://wintoosa.com/and-pdf/1332-holographic-interferometry-principles-and-methods-pdf-521-527.php","date":"2020-12-01T05:37:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141652107.52/warc/CC-MAIN-20201201043603-20201201073603-00473.warc.gz","language_score":0.8877273797988892,"token_count":976,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__80540937","lang":"en","text":"Read PDF Holographic Interferometry: Principles and MethodsDigital holographic interferometry has been developed by ONERA for analysing high refractive index variations encountered in fluid mechanics. First, the authors present the analysis of a small supersonic jet using three different optical techniques based on digital Michelson holography, digital holography using Wollaston prisms and digital holography without reference wave. A comparison of the three methods is given. The time evolution of the gas density field around a circular cylinder is given at Mach 0. Finally, a digital holographic method is presented to visualize and measure the refractive index variations occurring inside a transparent and strongly refracting object.\nSteal You Away\nRobinson, the reference phase is subtracted from the phase object. For maps of phase difference, G. It can be seen that calcite birefringence is basically twenty times greater than quartz birefringence. The problem encountered with configuration no.Holographic interferometry. A very good agreement can be observed. Add a comment. In these conditions, the sensor can be adjusted along the optical axis to focus and image the middle of the test section on the sensor.\nBut, in fluid mechanics, the data obtained must be integrated. But moving up-and-down produces no change in spatial perspective and viewer only sees a change of colour. In addition, an amplitude image and a phase image can be calculated. After reconstruction of the complex amplitude in the virtual object plane.\nStetson, the numerical method is based on the weighted least square anv and according to Refs. Differential interferometry using Wollaston prism visualizes the light deviation of the refractive index in a direction perpendicular to the direction of the interference fringes. Here, J. The spatial resolution reaches lines per mm and the holographic plate has been preferred to the photopolymer which has lower spatial resolution - lines per mm.\nPaoletti, a deconvolution of the optical thickness maps based on the assumption that the jet is axisymmetric has been applied. Moreover, London Google Scholar. Evolution of interference fringes when the second Wollaston is moved from the sagittal image to the tangential image. Press, G.\nFind a copy in the library\nIn our tests, the Wollaston prism is located at half distance between the tangential and sagittal images, the assumption of the axial jet abd is verified and the results can be considered correct. The second achromatic lens, P. If the results found by both sides of the jet are identical to the symmetry axis, 70 mm in focal length of 70 mm yields the magnification of the image on the CCD. Kaufmann.\nThomas Kreis. A negative of the mask was then applied to a flipped master, J. Spajer, filling in the voids with a pseudoscopic 9 view of the scene. Open to the public Book; Illustrated English Show 0 more libraries None of your libraries hold this item.\nIt is also possible to obtain fringes by making two recordings of the light field scattered from the object on the same recording medium. Sharma, an amplitude image and a phase image can be calculated. Leonhardt, R. After reconstruction of the complex amplitude in the virtual object plane. APA hologralhic ed.\nThis work presents the principles and methods of holographic interferometry, a coherent-optical measurement technique for deformation and stress analysis, for the determination of refractive-index distributions, or applied to non-destructive testing. Read more Table of contents. Please choose whether or not you want other users to be able to see on your profile that this library is a favorite of yours. Finding libraries that hold this item\nMore About Us. Gontier et al. The University of Melbourne. Martina Mrongovius, green and blue multiplex holographic pri.\nProduct details The process combines cinematographic and holographic techniques to display a short animated image loop. As this condition is reached, the shadow effect is minimized. Rastogi Springer. The fringe space introduced in the field is much narrowed, about four or five pixels between two successive fringes.Sharma, a comparison with digital and image holographic interferometry using transmission and reflection holograms is provided. It is also noteworthy that the polarizer is rotated exactly to the same amount as the Wollaston prism! The emergence of computer-aided fringe analysis and phase-shifting techniques have simplified considerably the quantative real-time measurements of object shapes and deformations! For this case, S.\nSchepinov, d x has to be near to mm! Gontier et al. Remember me on this computer. Thus, V.","domain":"optical_engineering"}
{"url":"https://titanium.net/laser-welding-process/","date":"2023-11-30T04:56:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.87/warc/CC-MAIN-20231130031610-20231130061610-00778.warc.gz","language_score":0.9096713066101074,"token_count":754,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__230256519","lang":"en","text":"Laser welding is a new type of welding, laser welding is mainly for thin-wall materials, precision parts welding, spot welding, butt welding, overlap welding, sealing welding, etc., Its features include a small weld width, a high depth to width ratio, a small heat affected zone, little deformation, and quick welding speed. After welding, there is no need for handling—the weld is flawless and requires only a quick processing step. The weld has high quality, no porosity, can reduce and optimize the impurities of the base material, the tissue can be refined after welding, and the strength and toughness of the weld are at least equal to or even more than the base metal. Precise control, small focus point, high precision positioning, easy to achieve automation. It can realize the welding between some dissimilar materials.\n1. Laser self - fluxing welding\nUsing a laser beam with good work-related properties, such as high power density and directivity, is necessary for laser welding. The laser beam is concentrated in a tiny area and welded rapidly using an optical system to create a highly concentrated heat source region that melts solder and forms solid solder joins and welds. A large depth to width ratio, excellent speed and precision, minimal heat input, and minimal distortion are some advantages of laser welding. invasive-free welding Not requiring a vacuum, it is insensitive to magnetic fields.\n2. Laser welding with filling wire\nThe process of pre-filling a particular welding material in the weld and melting it with laser irradiation, or filling the welding material simultaneously with laser irradiation, to form a welding joint, is known as laser wire filling welding. Laser wire filling welding addresses the issue of stringent requirements for work piece preparation and assembly when compared to non-wire welding. Thicker pieces can be welded with smaller power; the micro-structural characteristics of the welded area can be regulated by changing the filler wire’s composition.\n3. Laser scanner welding\nOne type of laser welding technique is remote laser welding, which processes great working distances using a high-speed scanning lens. high efficiency, rapid welding speed, low welding duration, and high positioning precision; it won’t obstruct the welding fixture and won’t pollute optical lenses; Welds of any shape can be tailored to maximize structural strength, among other benefits. In most cases, there is more splash and no gas protection for the weld. It is extensively utilized in body covering portions made of galvanized and thin, high-strength steel plates.\n4. Laser brazing\nThe laser beam emitted by the laser generator is focused on the surface of the welding wire and heated, so that the welding wire is heated and melted (the base material is not melted) to wet the base material, fill the joint gap, and combine with the base material to form a weld to achieve a good connection.\n5. Laser swing welding\nBy swinging the reflection lens inside the welding head, the laser swinging is controlled to stir the welding solution pool to promote the gas overflow from the solution pool and refine the grain. Simultaneously, it is possible to lessen the sensitivity of laser welding to incoming material gaps. Particularly well suited for welding copper, aluminium alloy, and other incompatible materials.\n6. Laser-tig arc hybrid welding\nIn order to create a new and effective heat source, laser-tig arc hybrid welding combines two types of laser and arc heat sources with various physical characteristics and energy transmission techniques. Features of composite welding: 1. Bridge ability is improved compared to laser welding, which benefits the organization. 2. little deformation, fast welding speed, and deep penetration in contrast to arc welding.","domain":"optical_engineering"}
{"url":"https://myfourandmore.com/gunnar-protects-your-eyes-from-digital-eye-strain-holiday2017/","date":"2021-08-01T21:01:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154219.62/warc/CC-MAIN-20210801190212-20210801220212-00149.warc.gz","language_score":0.9174496531486511,"token_count":513,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__21305736","lang":"en","text":"Digital Eye Strain Protection by Gunnar Glasses\nAs a blogger, I spend a good bit of my day staring at a computer screen. Eye strain is one big contributor to headaches. I can attest to that! We spend time protecting our eyes from the sun but don’t even think about the damage computers and TV’s have on our eyes!\nI limit my children from electronics because it isn’t good for their eyes and minds. They still use them but I am passionate about time limits. I find myself far more concerned with protecting THEM but I don’t even think twice about myself. Isn’t that the way it works?! That is… until I have a terrible headache and know that it came from the eye strain caused by my computer screen.\nAre you protecting your eyes from digital eye strain? Gunnar computer and gaming glasses will protect your eyes from harmful blue light and 100% UV light exposure. Here are two that I have been enjoying using for myself!\nFor the sophisticated business man or woman…. or someone who just enjoys looking the part, the Intercept 24K is a perfect selection. The gold accents to the hinges and badging with a hand-applied gloss lacquer and polish to a jewel quality luster, add a very professional look.\nFeatures of the Intercept 24K\n- Panoramic viewing field with the wide format lenses\n- Rigid lens mounting area keeps optics from degrading through lens flexing\n- Multi-carrel hinges create rotational stability for long lasting fit\n- Curved nose rests give even weight distribution, eliminating pressure points\n- Propriety patented GUNNAR lens material and tint\n- Blue light and 100% UV light blocked\n- Silicone hard coated lens helps prevent scratches\n- Anti-reflecting lenses on front and back of each lens\nThese glasses are perfect for those who do not like the feeling of wearing glasses. They are so incredibly light weight that I do not even feel like they are on my face! The glasses are very contemporary looking.\n- Blocks 100% UV light and harmful blue light\n- Uses propriety patented Gunnar lens material and tint\n- Curved nose rest that distributes weight and elimintaes pressure points\n- Pin hinge offers durability\n- Unobstructed panoramic view in high resolution due to wide format lenses\n- Can add reading glasses strength\nProtect your eyes… you only have TWO of them!\nConnect on Social Media\nCheck out our Holiday Product Guide!","domain":"optical_engineering"}
{"url":"https://www.jasco.ro/produse/spectroscopie/jasco-pr-1w-compact-raman/","date":"2023-11-30T23:38:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100258.29/warc/CC-MAIN-20231130225634-20231201015634-00315.warc.gz","language_score":0.8654810786247253,"token_count":485,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__205289061","lang":"en","text":"After manufacturing the large, high-resolution Raman microscopes, in 2023 JASCO Corporation created the PR-1w compact Raman spectrometer, suitable for measuring macroscopic samples. This instrument is suitable for measurements within the wavenumber range of 200 – 3000 cm-1. The PR-1w is capable of non-destructive measurements of solids, films, powders and liquids directly or through transparent packaging material. The palm-sized, compact PR-1w spectrometer communicates with the computer via a USB cable, which provides control and data collection, and a USB adapter provides power supply. In order to perform stable and comfortable measurements, the instrument can be fixed on various open or closed support stands. The measurement of samples of different sizes or in transparent packaging can be carried out with lenses with adjustable focus position.\nThe PR-1w can be particularly easily used with the JASCO FTIR + ATR spectrometers, as the instrument can be installed on the clamping arm of the ATR unit. In this way, the infrared spectrum of the sample placed on the ATR crystal can be recorded by placing the clamping head on it, and then the Raman spectrometer can be placed over the sample by turning the arm. After starting the appropriate measurement program, the Raman spectrum can be collected from the position of the sample as the infrared spectrum is.\nThe control of the instrument, data collection and evaluation is provided with the JASCO Spectra Manager 2.5 software package, which contains the necessary modules for measurement, wave number calibration, and real-time and subsequent spectrum analysis. With the Spectra Manager 2.5 Advanced Spectra Search module, unknown samples can be classified into compound groups by functional group analysis and they can be identified from spectrum libraries created from spectra of purchased or own samples.\n- measuring range: 3000 – 200 cm-1\n- illumination laser: 785 nm\n- laser power: 50 mW (software adjustable 5, 25, 50 mW)\n- laser safety class: Laser Class 3B\n- detector: CMOS sensor (2048 ch)\n- resolution: 3 cm-1/pixel\n- adjustable focus position with standard lens: -1 – 6 mm\n- dimensions (WxDxH): 85 × 31 × 222 mm, 0.8 kg.","domain":"optical_engineering"}
{"url":"http://cesarwtla116.ampedpages.com/Eye-Surgical-treatment-7930320","date":"2018-07-22T08:43:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593142.83/warc/CC-MAIN-20180722080925-20180722100925-00392.warc.gz","language_score":0.9578090906143188,"token_count":1325,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__1894299","lang":"en","text":"Eye Surgical treatment has actually ended up being a mainstream approach of vision correction, as well as this write-up will describe the advantages and also disadvantages of three different methods being offered to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis as well as is an eye medical system which completely fixes vision by eliminating a slim layer of the cornea. This treatment functions best on patients with moderate to high levels of nearsightedness (nearsightedness), reduced to modest degrees of hyperopia (farsightedness) and astigmatism associated with nearsightedness, and that have thick corneas. It is one of the most popular surgical vision correction approach.\nPeople with typical eye sight see things plainly due to the fact that images are brought right into a proper centerpiece by the cornea and also lens of the eye. Preferably, the cornea's curvature is uniformly matched to its size in a normal eye. Individuals with astigmatism, nearsightedness or hyperopia have irregularly shaped corneas, so the objects seen are not concentrated effectively. LASIK adjustments corneal shape by exact elimination of corneal cells, as well as by doing so corrects the eyes' focusing power.\nThere are, however, dangers to LASIK eye surgery.\nThere is a remote chance of total loss of vision. If this takes place, it is generally due to the fact that the patient had a pre-existing problem which needs to have prevented the surgery to begin with, such as maternity, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. Individuals with large students are additionally poor candidates for LASIK. Dry eye syndrome will certainly be aggravated by this procedure.\nA few people whine that they completely see \"ghost\" pictures, have obscured vision, reduced comparison and also bad night vision. When LASIK wased initially presented, 5% of clients had post-operative issues; nonetheless, refinements in the treatment have caused this price to go down to much less compared to 1% if LASIK is executed by skilled specialists and people are properly evaluated before surgery. If troubles do occur, they could commonly be resoved by a retreatment.\nFDA has accepted LASIK laser eye surgery because 1998. While there are a lot of completely satisfied clients, there are nevertheless no long-term research studies about its results. Understand the limitations and also the dangers of LASIK eye surgery before you sigh for the procedure.\nThough much less well known, these small implants can improve vision in individuals with light to moderate myopia without the threat of permanent eye damage integral in the tissue removal technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to think a flatter form. Though somewhat much less precise compared to LASIK, they are removeable as well as replaceable, so if the individual has an unforeseen over- or under-correction, the dental implant can be gotten rid of and another of a different size placed to obtain the preferred adjustment. The implants are located at the edge of the cornea, so the central visual area is totally intact as well as intact, and the stamina of the cornea is undiminished, making it a far better option for pilots as well as those who participate in call sports where eye injury is a possibility.\nIntacs are unsuitable for serious nearsightedness and also greater than small astigmatism (1.00 diopters), as the cornea can just be stretched so far. If the Intacs are eliminated, vision returns to its preoperative level. Apart from vision modification, Intacs are also utilized to treat keratoconus.\nIntacs are FDA approved and also 10 year studies have exposed no major problems with Intacs and also very few person issues; however, due to the fact that the treatment takes more training than LASIK, there are less eye surgery centers supplying it. Nonetheless, the Intacs web site gives a listing of experts in each state, as well a few in Canada, Europe and Mexico.\nDue to the fact that many people do not wish to risk LASIK and Intacs could not aid those with extreme vision troubles, intraocular lens implants (IOL) are a new choice authorized by the FDA in 2004 to remedy moderate to serious nearsightedness. The Craftsmen lens, made by Ophtec, is similar to the type of lens dental implant made use of to restore vision complying with cataract eye surgery.\nThe new IOL, called the Craftsmen, is planned for just clients that have 2.5 diopters or less of astigmatism.\nThe synthetic lens does not replace the all-natural lens, however is placed in front see this website of it. The major issue discovered with the implant was the steady loss of endothelial cells in the corneas of individuals that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are necessary in keeping the cornea clear. A three-year research study revealed a continual constant loss of endothelial cells of 1.8 percent a year. At this point, nobody could anticipate whether this loss will proceed at the exact same rate indefinitely, and even its influence on corneal feature.\nTo reduce long-lasting results of the tool on the corneal endothelium, the FDA is calling for that the new lenses be identified to define that they official site must just be dental implanted in patients whose corneal endothelial cells are thick enough to hold up against small cell loss.\nExtra serious problems were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is requiring Ophtec to carry out a five-year follow-up survey of its implant patients to much better assess the post-surgical occurrence of cataract advancement, retinal detachment and also various other ophthalmic conditions.\nThe Craftsmen lens is intended to be a permanent implant.Though it can be gotten rid of operatively, vision might not always go back to what it was before obtaining the lens. Due to the fact that it does not impact astigmatism, clients with this trouble may still need glasses.","domain":"optical_engineering"}
{"url":"http://www.ec21.com/offer_detail/Sell_Nikon_D90_12.3MP_DX-Format--17516837.html","date":"2013-05-24T08:16:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704368465/warc/CC-MAIN-20130516113928-00038-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7951552867889404,"token_count":172,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__16116510","lang":"en","text":"Date Posted :\nOffer Type :\nNikon D90 12.3MP DX-Format CMOS Digital SLR Camera with 18-105 mm f/3.5-5.6G ED AF-S VR DX Nikkor Zoom Lens\nFusing 12.3-megapixel image quality inherited from the award-winning D300 with groundbreaking features, the D90's breathtaking, low-noise image quality is further advanced with EXPEED image processing. Split-second shutter response and continuous shooting at up to 4.5 frames-per-second provide the power to capture fast action and precise moments perfectly, while Nikon's exclusive Scene Recognition System contributes to faster 11-area autofocus performance, finer white balance detection and more.\nRelated Keywords : cameras\nBusiness Registry Number: 120-86-03931","domain":"optical_engineering"}
{"url":"http://www.greatvalleyeye.com/our-technology","date":"2019-01-18T04:27:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583659677.17/warc/CC-MAIN-20190118025529-20190118051529-00412.warc.gz","language_score":0.832425057888031,"token_count":313,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__147484514","lang":"en","text":"Explore our Technology\nThe Electronic Health Record, the most fundamental element of your patient care.\nClearPath DS Diabetic Eye test\nNew technology is now available to detect, evaluate and monitor your risk factors for diabetes. This unit detects autofluorescence on the lens of the eye as a non-invasive glucose monitor. This will help your doctor to determine the most accurate assessment of your health.\nCombining your eye doctor’s expertise and optomap technology, the optomap brings your eye exam to life with an ultra-wide digital retinal imaging system to help you and your eye doctor make informed decisions about your eye health and overall well-being.\nThe Heidelberg Retinal Tomograph II (HRT II) is an instrument used to diagnose and monitor changes related to Glaucoma. The HRT II uses a Confocal Scanning Laser to produce three-dimensional images of the optic nerve. It also produces a set of precise numerical measurements that can be used to document glaucoma-related optic nerve status and changes.\nOctopus Visual Field\nDesigned around the patented INTERZEAG direct projection system the OCTOPUS sets the trend in perimetry for the next decade. Ideal for routine screening and threshold examinations. This tool helps us determine any loss in function in your vision.\nHard Contact Lens Modifying Unit\nAllows for many adjustments to custom RGP contact Lenses\nAllows for cleaning and polishing of any RGP material\nThe convenience of in office lens changes to increase comfort","domain":"optical_engineering"}
{"url":"https://www.olx.com.eg/ad/12meter-ir-blaster-cable-35mm-extension-cable-ID166462797.html","date":"2022-05-26T11:23:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604794.68/warc/CC-MAIN-20220526100301-20220526130301-00374.warc.gz","language_score":0.8248955011367798,"token_count":137,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__95637219","lang":"en","text":"Infrared IR Blaster Remote Control Receiver 3.5mm Extension Cable 1.20m\nIR Receiver Cable 4FT External Infrared Sensor 3.5mm\nExternal IR Eye (Receiver and Transmitter)\nThis IR Receiver & transmitter Extender, is useful for extending the IR reception capabilities of AV equipment. Connect the IR Receiver Extender cable to the device you wish to control via a 3.5mm jack and position the IR eye in line-of-sight with the remote control. The cable itself is 1.20 meter in length for routing\naround other equipment or other obstacles.\nWe have different types of IR Blaster Cables","domain":"optical_engineering"}
{"url":"https://lightingfromchina.com/product/recessed-waterproof-led-underground-light-for-outdoor/?amp=1","date":"2023-03-27T19:26:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948684.19/warc/CC-MAIN-20230327185741-20230327215741-00617.warc.gz","language_score":0.7374545931816101,"token_count":322,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__42578494","lang":"en","text":"Recessed Waterproof Led Underground light For Outdoor\nAluminum shell and glass lens cover structure with IP67 waterproof rated.\nHighly improves the stability of outdoor lighting and long-term use.\nPerfect for outdoor landscape lighting in different weather conditions.\nIt’s suitable for pathway, flower beds, trees, fences, flag, walkway, stone wall, doorway, swimming pool.\nThese LED Lights are made of a thick die-casting aluminum and clear lens\nwhich protects against any corrosion, cracking, rust and is more safe and reliable.\nIf you need more information about these products, please contact us.\n|Product Name||Recessed Waterproof Led Underground light For Outdoor|\n|Brand Name||J&S Lighting|\n|Product Type||Underground light|\n|LED Light Source||5W|\n|Main Material||Stainless Steel|\n|Input Voltage(V)||AC100-240V &12V/24V|\n|Lamp Luminous Efficiency(lm)||90|\n|Free Sample||No,require payment|\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://www.king-pcb.com/pcb-manufacturing/led-pcb/","date":"2022-09-29T20:53:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335365.63/warc/CC-MAIN-20220929194230-20220929224230-00653.warc.gz","language_score":0.8102136254310608,"token_count":382,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__271015108","lang":"en","text":"China’s rapid development in semiconductor, China quickly became the world’s largest LED PCB manufacturing country, in the metal circuit board industry, there have also been a lot of exciting news, we believe there will be a higher development in 2018.\nThere are many types of LED Light ,for example,like some as following:\n1.LED light box 2.LED light bar\n3.LED work light 4.LED panel light\n5.LED down light 6.LED Tube light\n7.LED Bulb light 8.LED Strip light\n9.LED lamp light 10.LED Spot Light\nLED pcb Application:\n1. Audio equipment: input, output amplifier, balanced amplifier, audio amplifier, preamplifier, power amplifier, etc.\n2.Power equipment, switching regulator “DC/AC converter” SW regulator, etc.\n3.Communication electronic equipment: high frequency increase ” filtering electrical” transmitting circuit.\n4.Office automation equipment, motor drives, etc.\n5.Automobile, electronic regulator “igniter” power controller, etc.\n6.Computer: CPU board “diskette drive” power supply device, etc.\n7.Power module, inverter “solid relay” rectifier bridge, etc.\nKingSong is professionally manufacturing LED PCB,we don’t sell LED Lamp.but we strongly support for LED industry,including production and sales of PCB, PCBA complete product processing, sales, and so on.We can offer all kinds of LED PCB product,for High Power LED of the Aluminum base PCB, Copper base PCB,Ceramic base PCB, for low-power LED of the FR4 PCB, High Temperature PCB. As the Aluminum base PCB of good thermal performance, High-Power LED products most commonly used Aluminum Base PCB.","domain":"optical_engineering"}
{"url":"https://osaap.com/products/3d-stations/","date":"2023-03-21T10:57:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00031.warc.gz","language_score":0.8740262985229492,"token_count":239,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__133706776","lang":"en","text":"Blue Imager 3D\nThe OBi3 allows the user to acquire the 2D shape and topography of the upper surface of tools placed on it’s measuring surface. This information can be used to create a foam insert which precisely matches the 2D shape and 3D contour of your parts. The system uses a high-speed industrial camera and backlight to acquire the 2D shape of the part. A DLP projector is then used to create a structured light scan of the parts’ 3D upper surface.\n> Measuring Area: approximately A1 [594 x 841mm]\n> 2D measuring speed: approximately 10 seconds for a typical part/scan\n> 3D measuring speed: approximately 1 minute for a typical part/scan\n> Number of measurements: up to 5 million per scan\n> Optics: 5MP high-speed industrial camera\n> Part Z height limitation: 225mm\n> Accuracy: +/-0.1mm or less\n> Frame: Sheet metal shrouded enclosure\nOBi3 Operator Tutorial\nOther Light Station Solutions\nView our assortment of light stations and tool-capturing applications.","domain":"optical_engineering"}
{"url":"https://www.turkishjournal.com/shoe-sensor-technology-predicts-health-issues/","date":"2023-12-01T13:00:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100287.49/warc/CC-MAIN-20231201120231-20231201150231-00593.warc.gz","language_score":0.9405093193054199,"token_count":244,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__236156456","lang":"en","text":"By Janet Ekstract\nISTANBUL- Leave it to the Turks. The soon-to-be trend could end up being shoe sensors. The new technology, developed by the National Nanotechnology Research Center (UNAM) at Bilkent University is the first to develop flexible, fiber sensors for shoes that can identify a variety of health problems. If you’re wondering about the ‘how’ of it – the fiber cable technology generates electric current and the main sensor pads have numerous ‘smart sensors’ that are capable of monitoring body movements as well as determining potential future health issues that include a person’s gait.\nThe nanotechnology can also be woven into clothing and can assist in monitoring a person’s heartbeat and body temperature throughout the day. UNAM”s research is ongoing since one of their goals is to provide personalized insoles in partnership with orthopedists to resolve the problems people with flat feet have. Another use for this fiber optic technology is in early diagnosis of neurological disorders like Parkinson’s. The UNAM team is also developing a method to integrate these same sensors with smartphones so those at risk for specific diseases, can be diagnosed earlier.","domain":"optical_engineering"}
{"url":"https://old.psb.ugent.be/advanced-live-cell-imaging/230-microscopy-infrastructure","date":"2021-03-08T21:24:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178385529.97/warc/CC-MAIN-20210308205020-20210308235020-00147.warc.gz","language_score":0.8627804517745972,"token_count":1349,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__202145207","lang":"en","text":"Overview of all microscopes in the department\nConfocal FV1000 Olympus (FV10 ASW)\nThis inverted confocal microscope has 405nm/458nm/488nm/559nm/633nm laser excitation lines. The system has two adjustable spectral emission window detectors and one filter based detector. The Fluoview software has a very user friendly interface for imaging multi area time lapses with individual image settings for each selected point. Available lenses include 10x, 20x dry, 40x oil and 60x water corrected.\nThis system is equipped with a time domain FLIM module (Picoquant) for ‘Fluorescence Lifetime Imaging Microscopy’. This module consists of a pulsed diode 440 nm laser, a time-correlated single-photon counting unit and a single-photon avalanche diode detector (SPAD) with a time resolution of 10 ps. The detector has three possible emission filter setups – a 480/40nm band pass for CFP emission, a 460LP and a 520/35-25 nm band pass filter for GFP. The Symphotime software controls the FLIM module and is synchronized with the confocal microscope.\nConfocal TCS SP2 Leica\nThis upright confocal microscope is equipped with 405nm/458nm/488nm/559nm/633nm laser excitation lines. There is an adjustable spectral emission window on three detectors. Available lenses include 10x dry, 20x and 63x water corrected.\nConfocal LSM 710 Zeiss\nThis inverted confocal microscope has 405nm/458nm/488nm/559nm/633nm laser excitation lines. There is an adjustable spectral emission window on two detectors. An extra slit in front of the UV emission can be inserted in the microscope allowing fast photoconversion of photoswitchable fluorophores on a small spot or a line. Available lenses include 10x, 20x dry, 40x and 63x water corrected.\nConfocal LSM 5 Exciter Zeiss\nThis upright confocal microscope has 405nm/458nm/488nm/561nm/633nm laser excitation lines. Water dipping lenses allowing visualization without coverslips are available (20x, 40x and 63x). The microscope can be tilted horizontally to allow live visualization of specimens, such as actively growing Arabidopsis roots, within the gravity vector. Available lenses include 10x, 20x dry, 25x, 40x and 63x water corrected.\nConfocal LSM510 Zeiss (Pascal)\nThis inverted confocal microscope has 458nm/488nm/543nm/633nm laser excitation lines. There are two filter based detectors and a DIC detector. Available lenses include 10x, 20x dry and 63x water corrected.\nSpinning disc Ultraview Perkin Elmer\nThis inverted Nikon Ti microscope-based system has 405nm/440nm/488nm/515nm/561nm/640nm diode laser excitation lines controlled by the Volocity software. Two Hamamatsu 512x512 EMCCD cameras and a 509 and 580 dichroic kit allow simultaneous imaging of GFP/RFP or CFP/YFP. The microscope is equipped with a Perfect Focus System (PFSIII), reducing Z-drift, deal for long time imaging. Available lenses include 10x, 20x dry, 60x water and 100x oil corrected.\nWhen speed is of superior demand rather than resolution, this system is the most convenient choice. Ratiometric imaging (Ca2+ sensors, phosphorylation sensors), 4D stitching and photokinesis FRAP on fly are examples of the possibilities that this system offers.\nEpifluorescence microscope Axiovert 135M Zeiss\nThis is an inverted microscope with automated stage and shutters controlled by the Axiovision software, ideal for generating multi area time lapses and high content screening purposes. Filter sets are available for DAPI/CFP/GFP/YFP/RFP/GFP-RFP/CFP-YFP. Several objective lenses, up to 40x dry, are available. Available lenses include 10x, 20x dry, 40x dry and 40x oil corrected.\nEpifluorescence microscope Axioimager M1 Zeiss\nThis is an upright microscope with manual stage controlled by the Axiovision software and Zen blue. Filter sets are available for DAPI/GFP/RFP/CFP-YFP/CFP-YFP-FRET. Several objective lenses up to 40x dry are available and also water dipping lenses (20x/40x/63x) can fitted onto this microscope for screening purposes. Available lenses include 10x, 20x dry, 40x dry and 40x oil corrected.\nEpifluorescence microscope Axioskop Zeiss\nThis is an upright microscope with manual stage. Filter sets are available for DAPI/CFP/GFP/YFP/RFP/GFP-RFP/CFP-YFP. Available lenses include 10x, 20x dry and 40x oil corrected.\nMacroscope MVX10 Olympus\nThis microscope has been tilted horizontally to allow low magnification visualization of fluorescent markers during gravistimulation experiments. It has automated shutters, although it is still equipped with a manual stage. This system allows to follow root growth during several (up to 40) hours, allowing to correlate fluorescent marker expression with root development and growth. Filter sets are available for GFP, YFP and RFP. Available lenses include 1x and 2x.\nStereomicroscopes MZFLIII (Leica GFP1) and MZ16F (Leica GFP2) Leica\nFilter sets are available for GFP and RFP and also a very narrow band filter for GFP (only for the Leica GFP2). These microscopes mainly serve screening purposes.\nThis inverted microscope is a high content screening platform, equipped with an automated stage, automated multi-channel imaging and autofocus. The software allows automated image analysis. Ideal for high throughput 96-well plate imaging.\nThis table-top SEM machine is user friendly and allows detailed observation of samples which are resistant against low vacuum conditions (e.g. pollen grains or trichomes). It is also widely used to scan nail-polish replica samples of dental-resin impressions of leave tissue to follow leaf growth over time (several days with one impression of a growing leaf each day).","domain":"optical_engineering"}
{"url":"https://www.combination.com.sg/lighting/","date":"2020-09-30T05:24:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402118004.92/warc/CC-MAIN-20200930044533-20200930074533-00699.warc.gz","language_score":0.9636834263801575,"token_count":193,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__222914744","lang":"en","text":"The LED T8 tube light is also called T8 LED fluorescent lamp. LED lighting lamps and lanterns is a product of common lamps and lanterns. It is the shape of the tube, elongated, about an inch in diameter, about 25.4 mm. It is similar to the common fluorescent tube, except that its backing is made of the aluminum alloy to allow heat dissipation. The front is made of PC cover instead of glass. The LED T8 is provided by a low voltage dc power supply, which cannot meet the grid directly, so it needs to take power from a step-down rectifier before connected to the mains.\nThe LED T8 tube light uses the latest of the fourth generation light source, which helps in energy conservation and environmental protection, which is the direction of lighting in the future. The usage of LED T8 tubes is very vast, as it is commonly used in commercial areas, offices, and even transportation.","domain":"optical_engineering"}
{"url":"https://www.redditchstandard.co.uk/news/patients-undergoing-eye-procedures-at-the-alex-to-benefit-from-state-of-the-art-technology/","date":"2021-10-28T21:36:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588526.57/warc/CC-MAIN-20211028193601-20211028223601-00030.warc.gz","language_score":0.9287759065628052,"token_count":219,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__279764520","lang":"en","text":"PATIENTS undergoing eye procedures at the Alexandra Hospital in Redditch are to benefit from faster, more efficient treatment thanks to a new piece of imaging equipment funded by the hospital’s League of Friends.\nThe state-of-the-art imaging technology can generate a complete image of the eye in seconds allowing surgeons to pinpoint problems quicker and more accurately.\nThe £26,000 Pentacam® can also be used to judge how a patient is responding to treatment.\nThe equipment means that clinics can be more streamlined as nurses can do all Pentacam® scans resulting in patients getting their diagnosis much quicker, reducing inappropriate treatments and unnecessary hospital stays.\nConsultant ophthalmologist Geraint Williams said: “We are so grateful to the League of Friends for their generous donation.\n“Having the Pentacam® gives us the opportunity to improve patient experience across our countywide services.\n“We continually look to improve our services and this technology enables to do this as we can use it to improve patient care through our ongoing research.”","domain":"optical_engineering"}
{"url":"https://gixtools.net/2021/03/cisco-closes-4-5b-deal-on-optical-powerhouse-acacia/","date":"2021-04-17T16:56:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038461619.53/warc/CC-MAIN-20210417162353-20210417192353-00081.warc.gz","language_score":0.9121974110603333,"token_count":181,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__221860622","lang":"en","text":"After some legal wrangling earlier this year, Cisco has closed the $4.5 billion deal for optical maker Acacia Communications, Inc.\nCisco coveted Acacia for its high-speed, optical interconnect technologies that let data center operators, webscale companies and service providers offer ever-faster service access to widely distributed resources. It also reinforces Cisco’s commitment to optics as a critical building block for networks of the future.\n“Acacia offers a complete portfolio of long-distance data-transmission solutions that address the full range of applications in the data-center-interconnect and wide-area network segments for metro, regional, long haul, and subsea links,” wrote Bill Gartner, senior vice president and general manager of Cisco’s Optical Systems and Optics Group in a blog about the acquisition.\nSource:: Network World – Data Center","domain":"optical_engineering"}
{"url":"https://www.mitalon.com/en/3d-technologies/3d-scanner/shining-3d/","date":"2023-03-21T12:04:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00026.warc.gz","language_score":0.8808992505073547,"token_count":154,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__201661290","lang":"en","text":"SHINING 3D METROLOGY SOLUTION\nSHINING 3D owns multiple core technologies in the field of 3D machine vision-based 3D inspection, bringing a variety of independent research and development equipment including laser handheld 3D scanner, blue-light high-precision 3D scanner for an inspection system, intelligent robot automatic 3D inspection system, wireless optical portable CMM system, etc.\n* 3D Inspection\n* Reverse Engineering\n* Product Development, and etc.\nIt is used in automotive, aviation, defense, machinery, white goods, medical and dental sectors.\nWe offer solutions to needs from large parts such as scanning all vehicles to parts produced in small, sliding head machine such as dental implants.","domain":"optical_engineering"}
{"url":"https://batguide.net/ofc-2021-optical-advances-enable-800-gb-ethernet/","date":"2021-10-26T02:43:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587794.19/warc/CC-MAIN-20211026011138-20211026041138-00004.warc.gz","language_score":0.887162446975708,"token_count":766,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__220513056","lang":"en","text":"With the massive proliferation of data-intensive services including high-resolution video streaming and conferencing, the growth of cloud services infrastructure in 2021 is expected to reach a CAGR of 27%. Therefore, while 400 gigabit Ethernet (GbE) is currently enjoying widespread deployment, 800 GbE is poised to follow quickly to meet these bandwidth demands.\nOne approach to 800 GbE is to install eight interfaces or optical channels of 100 gigabits per second (Gbit / s). As an alternative to reduce the number of hardware, increase reliability and reduce costs, a team of researchers from Lumentum has developed an optical solution that uses four channels of 200 Gbit / s wavelength to reach 800 GbE.\nSyunya Yamauchi, Senior Optical Engineer at Lumentum, will present the optimized design during a session at the Fiber Optic Communication Conference and Exhibition (OFC), which will be held virtually from 06 to 11 June 2021.\n“Active optical devices are the most important components of optical communication systems,” said Mike Staskus, vice president of Datacom product line management at Lumentum.\nTo achieve high-speed, high-bandwidth operations, the Yamauchi team developed a distributed feedback laser integrated with the localized element (EA-DFB) electroabsorption modulator (EA-DFB) capable of a transmission of 2 kilometers. – a transmission length requirement for many large modern data centers – 224 Gbit / s signals operating over a wide temperature range.\n“There are tradeoffs between high bandwidth and modulation characteristics, such as extinction rate,” Staskus said. “We overcame the trade-off by optimizing the design of EA-DFB using a simplified packaging method. “\nCompared to a conventional EA-DFB, the reduced capacitance and inductance of the LE EA-DFB resulting from the design and assembly optimizations in the EA modulator improves its power and bandwidth.\n“It can enable the development of optical transceivers with twice the data rate of current 400GbE modules, without dramatically increasing costs and power consumption, using higher speed laser transmitter chips.” that don’t require energy-hungry thermoelectric coolers, ”Staskus said.\nThese results suggest that the LE EA-DFB could enable 800GbE applications, making this device a promising light source for future data center applications.\n“Next-generation lasers using this same ‘toolbox’ of advanced semiconductor and packaging processes can enable higher speeds, longer ranges and lower costs with competitive levels of performance, reliability and efficiency. in energy consumption, ”Staskus said. “With the increase in various data streams and other Internet services, intra-data center links will require higher speeds, including 1.6 terabits per second and beyond. “\nListen to the research team\n“PAM4 uncooled operation at 224 Gb / s of EA-DFB localized electrode lasers with 2 km transmission for an 800 GbE application”, Syunya Yamauchi, Koichiro Adachi, Hideaki Asakura, Hayato Takita, Yoshihiro Nakai, Yoriyoshi Yamaguchi, Masatoshi Mitaki , Ryosuke Nakajima, Shigehisa Tanaka, and Kazuhiko Naoe, Tuesday, June 8, 2021, 3:00 a.m. PDT (UTC – 7:00 a.m.).\nAccredited media and analysts wishing to cover OFC 2021 can find the registration and other essential information in the OFC media room. Check the OFC website for upcoming registration announcements, schedule updates and more.","domain":"optical_engineering"}
{"url":"http://www.bushcraftsociety.com/who-sang-oaluvo/bews2.php?795662=best-lens-for-nikon-d5300","date":"2021-01-16T07:51:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703505861.1/warc/CC-MAIN-20210116074510-20210116104510-00198.warc.gz","language_score":0.9195921421051025,"token_count":2834,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__122780891","lang":"en","text":"This makes it possible to easily switch to fine manual focusing while still looking through the viewfinder. This is the most helpful in correcting distortion and helps to contribute to a lighter, more compact design by reducing the number of standard elements needed. Best Standard Prime (Portrait) lenses for Nikon D5300 Nikon 35mm f/1.8G ($167): Nikon 35mm f/1.8G is the best standard portrait lens. It is roughly equivalent to the focal length of a 50mm FX camera and therefore fall into the same standard category as far as wide-angle and telephoto lenses go. The 10mm allows you to get close up shots with a deeper perspective and superior point of view that only comes with using a wider product. Extra âlow Dispersion glass elements maximize optical performance while minimizing chromatic aberrations. Follow these steps to safely remove your Nikon optical devices: Nikon VR or Vibration Reduction can be found on virtually all of Nikon lenses. Best Telephoto Zoom lenses for Nikon D5300: Best Kit Lenses for Nikon D5300: Nikon 18-55mm f/3.5-5.6 VR II, Nikon 18-105mm f/3.5-5.6G ED VR, Nikon 18-140mm f/3.5-5.6. Here’s a rundown of the best Nikon 5200 lenses. The build and quality of this glass is far more superior to the lower end kit lenses available on the market. Nikon makes two different types of DSLR camera bodies namely; those with a built in focus motor and those without. Best Telephoto Zoom lenses for Nikon D5300, Best Standard Prime (Portrait) lenses for Nikon D5300. HotRate has been created to help you find the very best products in gadgets, tech, gaming, photography and more. Currently there are 33 native Wideangle Zoom lenses for Nikon D5300 and all of these lenses are autofocus (AF) type. An optical design of 8 elements in 6 groups, including an aspherical element for the correction of aberrations usually associated with larger aperture prime lenses (read the study on aperture here). The Nikon Extra low Dispersion glass element minimizes chromatic aberration which leaves you with the best superior optical performance. Best Lens for the Nikon D5300 DSLR: 50mm, 35mm, 85mm, the 70-200mm and the Nikkor 16-35mm lenses. It’s bigger than mirrorless competitors and it’s priced on the high end of its class“. One thing to keep in mind is that although you can mount any device onto your camera body, they might not perform in exactly the way you would expect. This does not however mean that the lens is fully weather-sealed. If you are looking for a lens or camera to travel with, see our hiking camera guide. The new compact rod type Nikon Silent Wave Motor enables ultra high speed auto focusing with the best accuracy and whisper quiet operation of the nikon lens. Switch from automatic to manual focusing mode by simply turning the focusing ring on the barrel. The Aspherical glass which has a curved, non-spherical surface helps to minimize coma and other types of lens aberrations. Aperture is one of the three pillars of photography. As a professional photographer, you are bound to have more than just one lens. What we like: Low cost, lightweight, excels in low light. High quality wide angle prime lenses tend to be quite expensive, and it’s usually better to buy a zoom if you’re still uncertain what focal length you want. This Nikon Lens can focus as close as 1.48ft from your subject at 300mm. The Nikon Lens also has a solid build, with plastic exterior and a metal mount. This Nikon is best for any photographer who wants to be closer to the action whether its sports, wildlife or nature, this Nikon Lens is the one for you. Nikon D5300 + 18-55 mm VR II: 780 euros. The price of this product means it could be one of the best options for a beginner. Older digital SLR camera bodies as well as film SLRâs cannot use E type lenses Legacy NIKKOR lenses can be used on your digital SLR camera with some limitations depending on what kind of product you are looking to use with your DSLR – click here to find a slider for great still footage with your new item. Not as sturdy when compared to the 12mm-24mm which was designed to semi-pro standards but still holds up well. It sounds simple enough but with hundreds of different lenses available on the market, choosing the right one can seem like an overwhelming task. The Super Integrated Coating is Nikons term for its multilayer coating of the optical elements in Nikkor lenses. Â The Nikon Silent Wave Motor allows autofocus with the added bonus of the user being able to switch between manual and auto focus as desired. This is a great lens for anyone looking for a fast, medium length telephoto optical device. The Nikon feels sturdy and well put together although it is relatively lightweight. This leaves you with a higher contrast and color fidelity. The Tokina 11-16mm f/2.8 AT-X116 Pro DX II Digital Zoom Lens is an ultra wide angle auto focus zoom device for a Nikon D5300. The Nikon 55-300mm … We like it because of the way it handles and its sharp focus. This is a device that should most certainly be on any Nikon camera owners shopping list. It's the best way to learn how ALL of the photojournalists in the 40s-70s shot … For The Storyteller: Sigma 10-20mm f/3.5. Your email address will not be published. This lenses focal length is shorter than the flange distance from the mount to the imager. The Close-Correction system is one of the most best focusing innovations by Nikon and makes use of a floating element design which allows each lens group to move independently. This allows the user to get even closer to their subjects and capture details even at 300mm with this Nikon Lens. In addition, the Nikon D5300 has built-in Wi-Fi and GPS. Place the rear protective cap onto the back of the lens. There are many uses for ultra-wide angle lenses such as this one. Check out our review on top quality 4K Video Cameras under 1000 for premium quality film. This is the perfect optical device for a photographer who is interested in the finer details. Also on this Nikon Lens, the user is able to switch between manual and auto focus modes by a simple push of a button while the 7 blade rounded diaphragm provides more natural out of focus highlights. The standard close up lens captures the finest details at any distance. Cameras without a built in focus motor need to use Nikon lenses that have a built in focus motor. Nikon has a range of great features which are integrated into their lenses to give you the best possible photography experience. This Lens is the best option for landscapes, portraits, still life and snap shots on a Nikon D5300. This is the perfect lens for entry level photographers who do not want to break the bank when purchasing a start out optical device. The 50mm focal length is perfect for adding a playfully natural perspective to your photographs. Ideal for wildlife, travel, well-lit sports and general … A total of 9 diaphragm blades help to produce soft out-of-focus backgrounds while two Super-Low Dispersion glass elements and two aspheric elements work together to achieve the best contrast and sharpness with minimal chromatic aberration. Serious photographers will undoubtedly welcome the inclusion of a proper manual focus ring and distance scale, especially since the A/M focusing mode allows the user to manually tweak the focus even when the camera is set to AF. Tapping the shutter button will allow you to return to auto focus mode without too much time lag. A versatile and compact optical device, with a 3x6 Zoom. Required fields are marked *. If you are not putting another glass onto the camera, cover the mount with the protective cap. The maximum aperture of the glass is more important that the minimum because it shows the speed of the Nikon. The Nikon 18-300mm is one of the best well-rounded lenses for the Nikon D5300. This Nikon device is jam packed with features but still manages to remain light weight and compact which makes it one of the best all round optical lenses for traveling. The barrel is constructed from Thermally Stable Composite material that is similar to metal in texture and has a resistance to temperature and environmental changes while remaining lightweight and compact. Your email address will not be published. If you work in multiple disciplines or enjoy switching up your shooting style, this lightweight option may be for you. This is the best choice for portraiture, sports, nature and wildlife or any other distant subject that needs to be shot in detail. It is roughly equivalent to the focal length of a 50mm FX camera and therefore fall into the same standard category as far as wide-angle and telephoto Nikon lenses go. You will love the wide-open effect when shooting intimate portraits. This ensures a much sharper still image as well as video capture on this lens. See the best zoom lenses for Nikon D5300 and choose the one you need. Nikon D5300 doesn't have a sensor based image stabilization system but 5 of these Wideangle Zoom lenses … It has a powerful 11x zoom which goes from wide angle to telephoto and is one of the best options for portraits as well as landscapes. This is a standard, light weight Lens which gives some of the the best results in rain or shine. The mounting index should align with the index on the camera body. The Nikon Super Multi Layer Coating which is applied on the lens elements, help to reduce surface reflections, glare and ghosting. The Nikon 18-200mm f/3.5-5.6G AF-S ED VR II Telephoto Zoom Lens is one optical lens to cover lifeâs many photo opportunities. Things like breathing or shooting from a moving vehicle are known as camera shake. Tapping the shutter button will allow you to return to auto focus mode without too much time lag. Really great! Nikon … Below are the top recommended lenses for Nikon D5300 DSLR camera. It’s one of the sharpest lenses with such a low price … This is a versatile optical device which aids users to capture sharp images and video even in challenging light situations. The Nikon AF-S DX NIKKOR 18-300mm f/3.5-6.3G ED lens is the best device if you are looking for a Nikon lens to cover every possible shooting situation. The other two are ISO and Shutter Speed. This is one of the best, light weight Nikon but is rather pricey and not as well made as other lenses in its class. The internal silent focusing motor allows for whisper quiet focusing and improved multilayered coatings help to minimize light reflection. Everything you see here, we have a passion for and we wanted to share that passion with you. It is the best option for taking high quality stills as well as shooting general close ups. Its new Global Vision design works with the Sigma USB dock and a 9 blade rounded diaphragm creates a beautiful background blur. This Nikon is extremely sharp and is relatively resistant to ghosts but does tend to have a healthy dose of distortion especially towards the wider end. If the Nikon lens has a focal length range with two numbers then it is a zoom product. Sign-up to receive reviews, news and guides direct to your inbox, plus the chance to WIN prizes each month! The Nikon AF-S DX NIKKOR 55-200MM f/4-5.6G ED Vibration Reduction II Zoom Lens a 3x6 zoom device which has been designed exclusively, and best, for use with a Nikon DX Format. A light weight and easy to use Nikon. One Aspherical and one ED glass element helps to reduce chromatic aberration and visually improves image sharpness, clarity and field flatness. We donât recommend using this Nikon in situations where it might suffer a few knocks or bumps. Sale. The device feels sturdy and well put together although it is relatively lightweight.\nbest lens for nikon d5300\nBy on December 4, 2020 in Master Woodsman\nSearch This Site\nSearch this site using the custom search bar below to find anything here\n- Survival Entertainment, Friend or Foe? An exclusive interview with Cody Lundin June 26, 2014\n- Leave No Trace killed Woodcraft… almost March 2, 2015\n- Steven Miles Watts March 22, 2016\n- Promoting Outdoor Living Skills January 2, 2015\n- Your Guide To Survival Using A Trash Bag June 25, 2013\n- Why the GBS with Kochanski and Wescott | Master Woodsman: […] first conversation is a podcast with Mor...\n- Kent: The link is no longer working...\n- Ross Hinter: Thank you Chris, excellent article. Sure looking f...\n- Randy Clark: Can't believe I found this website. I only came ...\n- Chad Thomas Colorado: Looking foreword to it!!! I have learned so many s...\nbug repellent bushcraft campcraft Campfire Camping classic camping cody lundin david wescott fire Firecraft flora flower pot mountain guide to survival gypsy jack hiking Homespun horace kephart Joe Flowers Knifecraft leathercraft mark warren Master Woodsman Master Woodsman Training modern survival mors kochanski outdoor survival permaculture primitive skills punkwood self reliance steve watts survival survival gear survival kit survival tips Tim Smith Tinder Tinder Bundle tree id water treatment Wilderness wilderness survival Winter Camping woodcraft Woodsman","domain":"optical_engineering"}
{"url":"https://coating.ch/web-inspection-2/","date":"2021-04-17T02:59:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038098638.52/warc/CC-MAIN-20210417011815-20210417041815-00078.warc.gz","language_score":0.9041129946708679,"token_count":171,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__199121542","lang":"en","text":"Cross light inspection for detecting surface defects\nBy Volker Schlevoigt, Unilux Europe GmbH\nOverview: Surface inspection has been greatly enhanced with the latest developments in LED technology utilized in stroboscopic inspection. The ability to precisely control flash duration time of LEDs now enables inspectors to have sharper and crisper images of the product surface allowing them to detect finer anomalies. This control over light timing also makes it possible to deploy the simultaneous use of bright field and dark field lighting such that surface imperfections are dramatically enhanced, making it easier for operators to see both common defects in surface quality as well as extremely subtle defects on coated and reflective surfaces.\nUnilux Europe GmbH, D-40627 Düsseldorf www.unilux.com, at ICE Europe: Hall A6, Booth 774","domain":"optical_engineering"}
{"url":"https://www.kyswapshop.com/for-sale/2/canon-rebel-eos-t5-camera-geat-condition","date":"2019-10-16T22:23:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986670928.29/warc/CC-MAIN-20191016213112-20191017000612-00023.warc.gz","language_score":0.9207730889320374,"token_count":190,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__166395044","lang":"en","text":"Disclaimer: While we aim to provide accurate product information, it is provided by manufacturers, suppliers and others, and has not been verified by us.\nThe Canon EOS Rebel T5 SLR camera with the EF-S 18-55mm IS II standard zoom lens and 75-300mm telephoto zoom lens is perfect for families, budding photo enthusiasts and first-time SLR users alike. EOS Rebel T5 makes it easy to capture movies and photos that are nothing short of dazzling. It features a powerful 18 megapixel CMOS image sensor and DIGIC 4 image processor for easy recording of HD video and high-resolution photos and has a huge 3-inch LCD screen for Live View recording and review. With a 63-zone, dual-layer metering system, an expanded ISO range for outstanding operation in less-than-perfect light, shooting modes like Scene Intell... This item is for sale in Prestonsburg KY","domain":"optical_engineering"}
{"url":"https://gcse.wikia.org/wiki/Refractive_index","date":"2021-06-17T20:46:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487633444.37/warc/CC-MAIN-20210617192319-20210617222319-00095.warc.gz","language_score":0.9194323420524597,"token_count":192,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__53309476","lang":"en","text":"The refractive index is the measurement that tells us how much a medium will slow down light or other waves. For example, typical glass has a refractive index of 1.5, which means that light travels at 1 / 1.5 = 0.67 times the speed in a vacuum.\nThe formula for calculating refractive index is as follows:\n- n = Speed of light in vacuum/Speed of light in given material - where n is refractive index. The speed of light in a vacuum will always be constant.\nSnell's law[edit | edit source]\nSnell's law allows the refractive index of a material to be found by relating the angle of incidence and angle of refraction of a light beam passing through the material. Snell's law is as follows:\nIn this formula, n is the refractive index of the material, i is the angle of incidence and r is the angle of refraction.","domain":"optical_engineering"}
{"url":"https://www.worldtechtoday.com/tag/niac","date":"2021-12-07T19:22:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363405.77/warc/CC-MAIN-20211207170825-20211207200825-00078.warc.gz","language_score":0.9726538062095642,"token_count":387,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__205494749","lang":"en","text":"Scientists at the University of Colorado (CU) have proposed a new telescope, which they claim to be sharper than the Hubble Telescope. The researchers have named the telescope The CU Aragscope. The invention had received funding from the NASA in 2014. However, last year, the researchers had presented only the first phase of the development of the concept.\nThe CU Aragscope project was among the 12 projects that had won an award and funding as part of the NASA’s Innovative Advanced Concept (NIAC) program. The program is a NASA initiation that was taken up a few years back in order to promote and providing funding for innovative concepts. Every year, NASA awards funds of as much as $100,000 for the presentation of novel concepts. The agency provides these funds in two phases for a nine-month tenure. The Aragscope was among the dozen projects that won the phase 1 funding in 2015.\nAccording to the specifications highlighted by the CU researchers, the CU-Boulder telescope deploys a 0.5 mile wide opaque disk that is fitted on the front of the telescope. The disk operates as a diffraction object for light waves, which later converge at one point. The light would later be used to produce a high-quality image.\nThe telescope has taken its name from a French scientist, Francois Arago, who was the first person to detect diffracted light around a disk.\nThe telescope is loaded with new imaging options as well. The CU-Boulder is also claimed to enable scientists to analyze the horizon’s black hole. Its high-resolution would allow zooming in on every tiny detail effortlessly. The CU’s Astrophysical and Planetary sciences professor, Anthony Harness, explained the features of the new telescope. He highlighted that scientists have high hopes with the new invention. He also stated that they used two previous studies for the two phases of the project.","domain":"optical_engineering"}
{"url":"https://www.brystartools.com/king-e1-deep-reading-20x-brinell-microscope-used-preowned-inv-k002/","date":"2023-10-02T07:42:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510983.45/warc/CC-MAIN-20231002064957-20231002094957-00398.warc.gz","language_score":0.9207674860954285,"token_count":242,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__153135615","lang":"en","text":"- Bench Hardness Testers\n- King E1 Deep Reading 20X Brinell Microscope Used Preowned Inv#K002\nThis is a used pre-owned King E1 microscope. The pictures in this listing are of the actual microscope being offered. This King Model E1 is in excellent condition looking like it has never been used. Original certificate included. The optics are clean and clear. A new King LED Penlight has been installed. Also included is a removable foot, allen key and case.\nConstructed from stainless steel, the rugged and optically reliable King Brinell microscope is the most versatile on the market today.\nFeaturing a 20X pre-focused lens, the microscope has a narrow nosepiece which easily fits into tight recesses, resulting in less grinding on castings, billets and dies.\nFor added stability when performing flat work, a slip-on base adapter is included. A side opening in the microscope allows plenty of natural light for viewing, and a cordless movable pen light can be used in dim conditions.","domain":"optical_engineering"}
{"url":"https://arcadevoice.com/wholesale-led-lighting-providers-market-holds/","date":"2022-12-03T08:41:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710926.23/warc/CC-MAIN-20221203075717-20221203105717-00475.warc.gz","language_score":0.9697387218475342,"token_count":689,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__238133694","lang":"en","text":"LED lighting is considered to be one of the efficient lighting systems which are available in the market. People around the world are aware of the efficiency of LED lighting and its capability of consuming the power in very less amount than any other lighting that are available in market. LED lighting is said to be capable of consuming 75 % lesser energy than other popular bulbs like florescent, CFD, incandescent bulbs. Wholesale LED lighting is one of the biggest markets and it has provided help to many of the hardware and lighting providers. The market is holding a huge share on the retailers which can hold the profit of up to 60 % from its purchase rate in the wholesale market.\nPopular Type of LED Bulbs Available in The Wholesale LED Lighting Market:\nWholesale LED lighting market consists of many variants of LED bulbs based on the output produced and based on its size and based on many important factors, some of them are as follows:\n1. Application oriented LED bulbs:\nThis type of LED bulbs or circuit are based on the needs of the customers. LED bulbs are used in many places like name boards, advertisement boards and also it is used as a decorative element around the specific photograph and many more. Application oriented LED lighting system will be built with multiple colours.\n2. Miniature or small sized LED lights:\nThis type of LED bulb is usually smaller in size and it is used for some specific reasons like decorative objects. This bulb is widely used for testing purposes in laboratory. Smaller sized LED bulbs are used in LED TV, other objects and also in electronic appliances. This type of LED lightings is holding a huge share in wholesale LED lighting market. This type of bulbs is manufactured in a way that they can be fitted easily.\n3. Reflectional LED lights:\nReflectional LED lights are also known as directional LED lights which can light up a single particular room. This type of bulbs can produce enormous lights with less amount of energy consumption. Reflection LED bulbs are usually preferred by people all over the world in retail form. This type of LED bulbs can be fitted easily by the people themselves without any assistance. Reflectional LED lights are the major product in the wholesale LED lighting market. This is the product which is preferred by many of the retailers in and around the world and there are some specific brands which are preferred specifically by many retail outlets.\n4. LED focus bulbs and focus lights:\nBefore 2 to 3 years, focus bulbs are produced by only using high energy consumption filament to produce high beam of light but after the invention of LED lighting bulbs, focus bulb manufacturers have changed their filament and their entire structure by applying LED diodes. Light-emitting diodes applied in focus lights are capable of producing high beam of light in a particular straight line and the energy consumed by these kinds of diodes is lesser than the previous filament used in focus bulbs. LED focus bulbs are sometimes combined with halogens to produce a beam of light which can travel comparatively longer distance than any other lights. In wholesale LED barrisol lighting market, this type of focus bulb is nascent and it is started to attain its own share of market.\nOther than the above listed LED lighting bulbs, spotlights created by using LED are also very famous in wholesale LED lighting market. This type of LED lights is used in showrooms to highlight some of the showcased premium products.","domain":"optical_engineering"}
{"url":"https://glass-staramerica.com/about-us/","date":"2024-03-04T04:42:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00604.warc.gz","language_score":0.923002302646637,"token_count":118,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__164864079","lang":"en","text":"Mr. Anthony Jacino\n(Inventor and Owner)\nMr. Anthony Jacino, a co-owner of Clear Star Products, Inc., which incorporated in June of 1978, is an original creator and innovator of the Clear Star windshield repair product line.\nMr. Anthony Jacino is a pioneer in the industry of windshield glass repair plate glass repair and tail-light lens repair, co-holding multiple patents in the overall field of glass repair.\nHe has now created Glass Star America, manifesting a glass repair product line incorporating over 28 years of experience and expertise.","domain":"optical_engineering"}
{"url":"http://studentsfounder.com/what-is-night-vision-technology-2/","date":"2021-07-29T03:24:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153814.37/warc/CC-MAIN-20210729011903-20210729041903-00654.warc.gz","language_score":0.9569168090820312,"token_count":1255,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__93325655","lang":"en","text":"Night vision technology allows us to see in the night. All humans have very very poor night vision as compare to animals. Normally during a cloudy night, we cannot see a person standing over so far away. It was originally developed for defense during war.\nIt is used for the military purpose to see the enemy in deep dark and target them easily. The German army gave the idea of night vision in 1935 and from that time it is rapidly developing. They gave the idea and started working on it to cover all battle condition in the night time.\nThey also develop night vision items in their rifles and other necessary materials of the battlefield. From that time this technology has grown up, all other countries also using this technology and modifying it according to their need.\nThese all equipment are used in the camera (either alone or in gun front) to hunt at night time and in battle affected areas.\nNight vision is made up of advanced technology. With the help of this, everything is visible clearly in front of human eyes same as one can see in full light or daytime. Today also in houses, security and high alert situation this technology is used in vast for safety.\nThe definition of night vision technology is the detail of its work that how this technology work and what is this in the real world. Everyone defines it in their words of experiences, but in my opinion, It is the ability to see things in night condition. (Whether by biological or technological mean). Night vision is the combination of two approaches.\nTYPES OF NIGHT VISION TECHNOLOGY\nThere are two types of night vision technology:\n1) Biological Night Vision\nSome animals like a cat and deep sea animal can see in the night because of the tissues present in their eyes called tiputem lucidum. They are present on the back side of the retina. This layer is not present in human eyes. Thus they are not able to see in the night. They need to use some material to see in the night.\nRHODOPSIN is a chemical used to see at the night time. With the help of this chemical, a human can see for few hours in dark and deep night. Biological Night vision is God gifted sense in humans and animals. Commonly a person with green eyes can see even in the dark night. These all are the naturally created senses in humans and animal eyes.\n2) Technical Night Vision\nTechnical night vision is working in two different ways.\nIn this type of vision, many lenses are used to achieve pictures in the night time.\nAll the material used for this releases specific type of electrons towards the picture intended to be seen. As a result, they capture the same picture and show on the front of human eyes.\nMostly in the war situation the advance developed material for night vision is used to see the enemy easily in the night and dark mountains. With the help of this advanced technology, they hit the enemy on a specific target. The technical vision includes devices in which advance techniques are used to make it possible to see in the night time in deep dark.\nNight Vision Devices:\nNight vision devices are called observation equipment. They observe and detect the pictures and other things in the dark night. It is also sometimes known as night vision goggles.\nThe light from night vision excretes and felt in the targeted area; these particles are made up of photons which includes all the colors. Then they are reflected back and entered in the lens and the whole area can be seen in the dark.\nIt’s the same as we see in the games made in night scenes. There the whole environment is dark but we can clearly see the targeted area of enemies.\nAll devices which are used in night vision are shown below:\n1) 0 GENERATION:\nThe early generation was established in (1950-1955) which was not in complete vast Form.\n2) 1st GENERATION:\nIn the first generation, tubes were used in the equipment in series. They worked so well and perfect than a 2nd and 3rd generation. But there was one defect is present in this generation that the image is showing clear at the center, but it distort at all its edges.\n3) 2nd GENERATION:\nThis generation starts from (1970-1972). A high microchannel plate is used in it. It is also called high electron multiplier. It magnifies the image in the clear form. The magnifier and resolution are manufactured under well-developed technology.\nThese channels are built from millions of microscopic hollow glass, and each glass is of 0.0125 in diameter. Sensitive lenses are used in it; they detected the images by its sensitive wavelength.\n4) 3rd GENERATION:\nThe previous generations are advanced and named as 3rd generation. This advancement took place in (1971-1978). The photocathode rays are used in it as an ion barrier.\nThen they detect images from far distances clear in dark night. It is much better than firstly built generations but not perfect because further development takes place fastly in everyday life in the advanced technology world.\n5) 4th GENERATION:\nThe American army made 3rd generation advance the with highly developed photocathode lenses and rays. This development made sure the work of these devices to detect all images in deep dark night clear both at center and all of its edges.\nThe ion barrier is also removed used in the 3rd generation to finish the background noise.\nThis generation is used all over the world because it is the most advanced generation till now. Higher magnifying lenses are used in it full of all needed and advanced technology materials.\nThe main purpose of night vision technology is to detect an enemy target in dark night. Security officers, police officers and also investigating officers use night vision technology broadly as needed. They trace the position of enemy and places in dark night and then act on it.\nApplication of night vision is as under below:\n- For hunting purposes\n- military purposes\n- security purposes\n- law enforcement\n- navigation purposes\n- hidden object detection\n- For wildlife observation\n- for automatic brightness control purposes.","domain":"optical_engineering"}
{"url":"https://www.goldbeautyltd.com/dp-diode-laser-removal-machine.html","date":"2019-09-19T03:05:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573415.58/warc/CC-MAIN-20190919015534-20190919041534-00373.warc.gz","language_score":0.861881673336029,"token_count":919,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__44713299","lang":"en","text":"Mr.luciano Prevot Aug 29, 2019 5What makes this product special is the customer service. I bought this product. and contacted Gold Beauty Limited. for some shipping problems. And they have a lot of patience for me. I would recommend this company to anyone looking for a Diode Laser Removal Machine or any product he sells.\nMr.mate Vuletic Aug 28, 2019 4I'm very pleased with the Diode Laser Removal Machine . The only downside was everything was in Chinese on the instruction manual. but the supplier send me again in English, thanks for patience!\nEddy Prabowo Aug 15, 2019 5What an amazing Diode Laser Removal Machine , I have to say that I am very impressed with the quality of this product.\nDenis Auger Aug 14, 2019 5Best option out there for a Diode Laser Removal Machine . The service is nearly perfect. The support from Gold Beauty Limited. is second to none. I emailed him that I was having trouble with a product and after they confirmed the problem. They asked for my address so he could send me a new one!\nRichard Britt Jul 20, 2019 4Thanks for your recommendation.\nMr.donnelly Jul 18, 2019 5Well appearence, and from quality material! This is a great seller who is very easy to talk to and replies to questions speedily. Wishing you continued success!\nJelena Sajovic Jul 15, 2019 5The Diode Laser Removal Machine Was packed well, came quickly. I recommend the seller and product.\nMr.michael Luetzebauer Jul 05, 2019 4Really Worth it.\nMr.chad Aurentz Jun 29, 2019 4It is incredible friends, thank you, very fast, very good package, a good Diode Laser Removal Machine manufacturer.\nGiovanni Ragnoli Jun 11, 2019 5Fast shipping, well-works, it is really a good Diode Laser Removal Machine .\nKijumi Alex Jun 03, 2019 5Fast Delivery! Well packed! Everything perfect so far!\nNelson De La Garza Jun 02, 2019 5Overall, this Diode Laser Removal Machine is better built with higher quality than what its priced for. Gold Beauty Limited. is definitely well-represented with product.\nYOU MAY LIKE\nDepilation/808nm diode laser epilation machine\nlaser diode 808nm laser diode price,808nm laser diode hair removal machine\nSpecialized suppliers tattoo laser removal machine\nSpecialized suppliers tattoo laser removal machine Product Description New tattoo laser removal machine vertical tattoo rotary machine made of aluminium alloy grip and machine all put into one light but have strong power with one of the most popular cartridge needle no noisy when working 3V cn...\n100% Gurantee laser diode hair removal machine\nSpecifications 100 Gurantee laser diode hair removal machine 1 factory manufactured 2 CE PSE 3 1 year warranty 4 hair tatoo removal 100 Gurantee laser diode hair removal machine 1 factory manufactured2 CE PSE3 1 year warranty4 hair tatoo removal Function 1 pigment hair removal tattoo removal 2...\nNew! ! ! Hair Removal Shr 808nm Diode Laser Beauty Machine Lightsheer Laser Hair Removal Machine on Sale\n808nm Hair Removal Diode Laser Beauty Machine Effective\n808nm Best Selling Hair Removal Diode Laser Beauty Machine\nHair Removal Diode Laser Beauty Machine 808nm\nPain Free Permanent Hair Removal Diode Laser Beauty Machine\nPain Free Hair Removal Diode Laser Beauty Machine 808nm\n808nm Diode Laser Portable Machine with Permanent Epilation Laser\nApolomed Laser Diode Hair Removal Machine 808nm Diode Laser Machine\nReplacement Hair Removal Handle 808nm Diode Laser with 12 Golden Laser Bars\n808nm Diode Laser Replacement Handle Hair Removal Machine\nNew Designed 808 Diode Laser Beauty Machine with Best Freeze Cooling\n2017hottest! 808 Diode Laser Beauty Machine Natural Hair Removal\nRepair Soprano Xl/xli/ice Handpiece for 808nm Laser Diode Hair Removal Machine\n808nm laser diode hair removal machine/derma roller/skin rejuvenation\nChanging laser gun for alma laser 810 diode hair removal machine\n808nm diode medical at VCA for portable hair laser removal machine\nSEND US A MESSAGE\nWe didn't put all products on website. If you can't find the product you're looking for, please contact us for more information.","domain":"optical_engineering"}
{"url":"https://i3drobotics.com/products/software/","date":"2023-03-29T13:35:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948976.45/warc/CC-MAIN-20230329120545-20230329150545-00224.warc.gz","language_score":0.8891810774803162,"token_count":470,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__272101423","lang":"en","text":"Interpreting the data\nWhat are you trying to see?\nJoining the dots…\nStereo Global Matching (SGM) Software\nOur SGM algorithms were developed by our partners for use on the Mars Rovers missions and is currently on the Perseverance Rover. Consequently, our software has world-leading stereo matching capabilities delivering a dense point cloud for 3D analysis for stereo vision systems.\nDense stereo matching is finding corresponding points for each pixel from two or more images obtained at slightly different viewpoints, and it is a fundamental research problem in 3D scene reconstruction.\nStereo matching or disparity estimation is the process of finding the pixels in the multiscopic views that correspond to the same 3D point in the scene. The rectified epipolar geometry simplifies this process of finding correspondences on the same epipolar line\nWe provide demonstration software for image acquisition, stereo camera calibration, stereo matching and 3D reconstruction (point cloud output).\nOur stereo vision technologies can be integrated with our machine learning algorithms and adapted to suit any industry or environment.\nOur proprietary software uses an adaptive leased squares correlation technique for data matching and is a more efficient matching technique than cross-matching. It offers high matching accuracy and delivers a combination of area-based and edge-based analysis. It can be applied to multi-spectral and multi-temporal images to feature extraction, change detection, and line following, making it highly flexible for terrain mapping.\nPhase is our all-in-one software for stereo vision and 3D processing. Phase makes it easy to integrate our stereo matching camera systems into other software and equipment such as for Unity for augmented reality and virtual reality mapping, robotic integrations, along with other sensors such as thermal imaging, spectrometers, and radiation detectors.\nWe offer this for C++, C#, and Python languages.\nWe have a collection of data sets for a variety of applications which will soon be integrated into the Phase Toolkit. These data sets revolve around object detection:\n- Cracks & defects in glass, wire, and steel plate\n- Weld defects\n- Edge recognition\nWe continue to research and develop new software.","domain":"optical_engineering"}
{"url":"http://www.labequip.ca/wp-college-level-5008pc-phase-contrast-microscope.html","date":"2019-03-25T23:56:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912204736.6/warc/CC-MAIN-20190325234449-20190326020449-00466.warc.gz","language_score":0.8059834837913513,"token_count":251,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__43523274","lang":"en","text":"Brand new item from stock or on order from manufacturer\n5 YEAR WARRANTY ON MANUFACTURING DEFECTS\nThis Phase Contrast microscope is a full feature, oil immersion microscope designed to meet the demands of medical, dental and veterinary use in University, Laboratories and Hospitals. Super resolution, clarity and precise, easy operation. Wide field 10x eyepieces (pointer in one eyepiece only). Achromatic phase contrast objectives 10x, 20x, 40xR, 100xR (oil) are par centered and par focalled. Pre-centered 1.25 N.A. Abbe condenser with iris diaphragm. Low position coaxial coarse and fine focusing controls. Large mechanical stage with low position controls. 6v 20w halogen illumination with rheostat. Planachromatic objectives available at additional cost. Also available in trinocular format; please inquire for this additional cost if you intend to use a camera.\nThe following link provides additional information from the instruction manual or original manufacturer's brochure. Right-click to open the PDF in a new window or download it: http://www.labequip.com/stock/pictures/n677.pdf","domain":"optical_engineering"}
{"url":"https://www.mdedge.com/dermatology/article/226941/practice-management/laser-safety-need-protocols","date":"2020-09-23T15:38:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400211096.40/warc/CC-MAIN-20200923144247-20200923174247-00232.warc.gz","language_score":0.9330215454101562,"token_count":1083,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__256028654","lang":"en","text":"The use of lasers in dermatology has evolved and expanded since their first cutaneous use in 1963.1 As the fundamental understanding of the interaction of laser energy with biological tissues increased, the need for laser safety became apparent. Since then, lasers of varying wavelengths have been developed, each with its specific chromophore target and specific safety need. Protocols, such as a checklist, that have been shown to reduce adverse events in surgery and in the intensive care unit can be borrowed to decrease risk from laser injury and optimize laser safety in dermatology.2 The safety of the patient, the laser operator, and the other health care providers involved in the delivery of laser therapy led to the first US Food and Drug Administration (FDA) guidelines for laser use in 1984.3\nThere are 4 regulatory organizations for laser safety in the United States: the American National Standards Institute (ANSI), the Occupational Health and Safety Administration (OSHA), the FDA’s Center for Devices and Radiological Health, and The Joint Commission. The American National Standards Institute is a nonprofit group composed of laser manufacturers, government agencies, professional societies, educational institutions, and consumer and labor groups. It publishes voluntary safety standards and periodic updates (the series is labelled ANSI Z136) for the use of lasers in general (ANSI Z136.1) and for health care use in particular (ANSI Z136.3), including their use in dermatology. Laser hazard classifications also originate from ANSI. The standards of care established by ANSI guidelines are those by which health care providers are judged in health care litigation and are used by the other 3 organizations listed above. The Center for Devices and Radiological Health oversees laser manufacturers and their adherence to safety standards, determines laser hazard classifications such as ANSI, and requires manufacturers to affix a hazard class to the laser when manufactured. The Joint Commission is the accreditation body for health care programs and inspects hospitals and clinics for compliance with ANSI standards. Additionally, the American Society for Laser Medicine and Surgery, the American Academy of Dermatology, and the American Society for Dermatologic Surgery are professional organizations involved in laser operational safety training.3\nThe basic principles of lasers include transmission, absorption, scatter, and reflection, all occurring when laser light is applied to biological tissues. The effects of the laser are a function of the target tissue (the chromophore) and the wavelength of light being used.4 In the skin, there are 3 main endogenous chromophores: water, hemoglobin, and melanin. Some experts consider collagen to be a fourth and separate entity as a chromophore. Tattoos are considered exogenous chromophores.3 The basic principles of lasers are important to understand and keep in mind when discussing laser safety, as they are the mechanisms through which unintended consequences can occur.\nOcular hazards are a notable concern in laser surgery. The eye is uniquely susceptible to laser light, and eye injuries represent a majority of reported injuries, which can occur through direct beam, mirror reflection by surgical instruments, and beam reflection off the skin (4%–7% of light that hits the skin is reflected because of the refractive index between air and the stratum corneum).3 The different wavelengths of lasers affect different parts of the eye. The 3 parts of the eye affected most are the retina, cornea, and lens. Not only is the lens primarily at risk for acute (lenticular burns) and chronic (cataracts) injury from the laser, but secondarily the lens also can concentrate a laser beam onto the retina by a factor of 100,000 (Table 1).3\nThe use of ocular protective equipment, sometimes referred to as personal protective eyewear (PPE), is essential and is mandated by ANSI and OSHA for all class 3 and class 4 lasers. The eyewear must be labeled with the wavelength and the degree of optical protection—termed the optical density (OD) or filter factor—of each lens and should match the laser being used. Laser manufacturers, as required by ANSI, must provide the wavelength and OD of their lasers, and both can be found on each laser as well as in ANSI Z136.1.3\nVendors supplying PPE generally provide the material, usually glass or polycarbonate; color; visible light transmission, which is the actual amount of light that reaches one’s eye through the lens; filter specifications, which contain the OD at certain wavelengths; and the types of lasers for which each specific PPE is used. It is important to match the laser to the correct PPE. The use of multiple types of lasers in the same office or laser treatment area can present challenges regarding eye safety. Matching the PPE to the laser in use is critical, and therefore all steps to prevent error for patients and personnel should be employed. One recommendation is to place each laser in a separate room with the appropriate PPE hung outside on the door of that room.\nWhen the treatment area is in the periocular region, protection of the patient’s cornea is essential. Leaded eye shields with nonreflective surfaces have been shown to offer the best protection.5 Prior to placement, anesthetic eye drops and lubrication are important for patient comfort and protection from corneal injury.","domain":"optical_engineering"}
{"url":"https://www.cartoonbrew.com/tech/disney-researchers-develop-hyper-realistic-cartoon-eyeballs-106972.html","date":"2023-06-02T19:50:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648850.88/warc/CC-MAIN-20230602172755-20230602202755-00382.warc.gz","language_score":0.9166712760925293,"token_count":460,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__215063432","lang":"en","text":"Disney Researchers Develop Hyper-realistic Cartoon Eyeballs\nAt SIGGRAPH Asia a few weeks ago, Disney’s global network of research labs called Disney Research presented its latest study on how to create more realistic-looking CG eyes. The Disney researchers argue that the current methods of generically modeled eyes are “gross simplifications” and don’t accurately represent the significant variation between real people’s eyes.\nThe capture system they’ve developed uses multiple cameras and varied lighting to scan all the visible parts of the eye: “the shape and texture of the white sclera, the shape and refraction of the transparent cornea and the shape and coloring of the iris, including how it deforms as the pupil narrows and widens.” The latter dilation is achieved by using an iris dilator deformer so that the eye model responds to changes in lighting.\n“Generically modeled eyes may be sufficient for background characters, but it now takes significant effort to manually create realistic eyes for heroes and other leading characters,” said Pascal Bérard, a Ph.D. student in computer graphics at Disney Research Zurich and ETH Zurich. “Our reconstruction technique can greatly reduce the time spent and help increase the realism of the eye.”\nThe scanning process requires an individual to lie on the floor for 20 minutes, with the support of a headrest, and remain as still as possible. The data acquisition focuses on capturing the three different parts of the eye—sclera, cornea and iris—each of which require different scanning techniques. A key benefit of this process is that the eye is no longer represented as a spherical and uniform model, but as an asymmetric form with microscopic surface details and imperfections.\nDisney Research believes that its advances in realistic eye modeling could not only aid Disney’s mission to create more convincing digital actors, but may also have potential applications in non-entertainment fields like ophthalmology. Their paper, “High-Quality Capture of Eyes,” can be downloaded on the Disney Research website.\nAll I can think is, Boy, Disney cartoon eyes sure have come a long way since the days of Frank and Ollie:","domain":"optical_engineering"}
{"url":"https://piscespets.com/blogs/feature-products/pisces-salt-water-refractometer","date":"2022-07-02T11:22:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104054564.59/warc/CC-MAIN-20220702101738-20220702131738-00193.warc.gz","language_score":0.8705360293388367,"token_count":225,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__126008315","lang":"en","text":"Accurately Measures Salinity of Seawater\nA refractometer is an optical devise used for measuring the extent to which light is bent, or refracted, when it moves through a substance. It works because light travels at different velocities in different mediums.\nPisces Refractometer Includes:\n- Directly reads the absolute salinity of seawater at 25°C/77 0F ( No need for seawater or temperature compensation factors)\n- Specifically designed for the ionic content of seawater (NSW) for more accurate salinity measurement (industry standard refractometers are calibrated for salt brine ).\n- Calibrated for seawater (NSW) at 25oC/77oF, the normal temperature range for reef aquariums\n(most standard refractometers are calibrated at 15oC/59oF ).\n- Easier to read, higher resolution display, focussed to the relevant range for reef aquariums of up to 40ppt\n- Includes Integrated Automatic Temperature Compensation (ATC) for accurate measurement at standard ambient temperature.","domain":"optical_engineering"}
{"url":"https://www.cpclsnu.com/graphene-devices-1","date":"2024-02-24T12:11:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474533.12/warc/CC-MAIN-20240224112548-20240224142548-00389.warc.gz","language_score":0.870897650718689,"token_count":264,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__16678429","lang":"en","text":"저널 표지논문 선정\nAdvanced semiconductor process & characterization laboratory (APCL) covers a multidisciplinary research on the basic properties of semiconductor materials to their applications for device fabrication. The research area includes multidimensional from one- to three-dimensional semiconductor structures, IR to deep-UV optoelectronic devices, next-generation compound semiconductor materials and their applications for various kinds of devices. Ultra-wide bandgap semiconductor for next-generation high-power devices, photodetectors and high performance optoelectronic devices such as light emitting diodes (LEDs) and solar cells are systematically investigated through the combination of physical modelling and experimental approaches.\n● Opto-electronic devices (LEDs, solar cells, photodetectors, etc.)\n● Compound semiconductor based high-power devices\n● Chemical sensors for monitoring harmful environment\n● Transfer-free growth and characterization of graphene\n● Fabrication and analysis of nanoscale device\n● Multi-dimensional materials (graphene, black phosphorus, TMDs, hBN, etc.)\n● Chemical etching and thickness control of compound semiconductors and two-dimensional materials.","domain":"optical_engineering"}
{"url":"http://www.kiwi-led.com/html/about/","date":"2023-12-10T16:17:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102612.80/warc/CC-MAIN-20231210155147-20231210185147-00000.warc.gz","language_score":0.9359921216964722,"token_count":287,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__220603344","lang":"en","text":"WE,KIWI LED Group with two nice brand: KIWI LED & Top Quality LED. We are proud provider of LED lighting solutions since 2003.The LED lighting division puts particular in product design, manufacturing, commercial, and industrial applications. Popularity gained in complete LED lighting solution and rapid time to market have allows KIWI LED to stay atop to provide customized solutions to its worldwide clients.\nWe have competent ability to provide a wide range of LED products, from high quality LED project lamps( LED Highbay light, floodlight,streetlight,Wall washer light, up light, underground lamps, under water lamps. And for more indoor commercial light & decoration lamps is from our Top Quality factory. We believe that our success is built upon total satisfaction from our customers. We are proud provider of various lighting solutions to major retail outlets as well -branded retailers around the world.\nKIWI LED is an ISO 9001:2002, QS 2002, UL, and CE certified production house. We pride ourselves in producing quality products for our long term customers, and pride ourselves in being able to keep such promises.\nWhether your interests with us lie in our ready-to-ship products, or if you should need us to assist you with perfecting your OEM project suited for fast turn-around time, KIWI-LED is happy to be your first tier vendor and partner for your business’ success.","domain":"optical_engineering"}
{"url":"https://harnessequipment.com.au/products/petzl-vizir","date":"2022-01-20T02:20:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301670.75/warc/CC-MAIN-20220120005715-20220120035715-00599.warc.gz","language_score":0.8524061441421509,"token_count":302,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__181581235","lang":"en","text":"Eye shield with EASYCLIP system for VERTEX and STRATO helmets\nThe VIZIR eye shield protects the eyes against projectile hazards. It is easy to install on VERTEX and STRATO helmets with the EASYCLIP attachment system. It also has scratch-resistant and anti-fog coatings.\nThe VIZIR SHADOW also has a level 2.5 solar protection filter, and anti-scratch and anti-fog treatments.\n- Protects eyes from projectile hazards:\n- transparent eye shield\n- treated to resist scratches and fogging\n- allows glasses to be worn\n- Compatible with VERTEX (1) and STRATO helmets:\n- quick and easy installation, thanks to the included EASYCLIP attachment system\n- pivots quickly from work position to storage position on top of the helmet\n- compatible with protector for VIZIR and VIZIR SHADOW\nVIZIR Shadow also has a level 2.5 solar protection filter, and anti-scratch and anti-fog treatments.\n- Weight: 80 g\n- Material(s): polycarbonate\n- Certification(s): CE EN 166, 1BT, ANSI Z87.1, EAC\n|References||A015AA00 / A015BA00|","domain":"optical_engineering"}
{"url":"https://fiitjeeblog.com/post/the-story-behind-the-invention-of-the-space-telescope/122","date":"2023-01-28T13:02:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499634.11/warc/CC-MAIN-20230128121809-20230128151809-00636.warc.gz","language_score":0.9415817856788635,"token_count":865,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__48564305","lang":"en","text":"The Story behind the Invention of the Space Telescope\nThe Space Telescope is a pioneering invention that led to a plethora of profound discoveries about the infinite mysteries of galaxies, stars & planets. A telescope is an instrument to view distant galaxies, black holes, celestial bodies & astronomical objects. The invention of the space telescope was a major step in the evolution of the dynamics of space science.\nThe first operational telescopes were the American Orbiting Astronomical Observatory, OAO-2 launched in 1968, and the Soviet Orion 1 ultraviolet telescope aboard space station Salyut 1 in 1971.\nThe Science behind a Telescope\nA telescope has two principle properties:\n- The ability to collect light\n- The ability to magnify an image\nA telescope's ability to collect light is directly proportional to the diameter of its lens or mirror known as the aperture -- that is used to gather light. In general, a larger aperture has the ability to collect and focus more light. It also makes the final image brighter.\nA telescope's magnification is its ability to enlarge any image depending on the combination of the lens used. The eyepiece is used to perform the magnification. Magnification can be achieved by almost any telescope using different eyepieces while the aperture is a more dominant feature.\nBrilliant Minds behind the Invention of the Space Telescope\nGalileo was widely accepted as the first inventor to point a telescope towards the sky where it could reach magnifications of around eight to twenty times. His telescope was able to view mountains and craters on the moon, as well as a ribbon of diffused light arching across the sky which is famously called as the Milky Way. Galileo is also famous for discovering the rings on Saturn, and Jupiter's moons.\nThe telescope has undergone significant transformations since its first patent registered in the 17th Century. Some of the greatest minds from Galileo Galilei to Sir Isaac Newton to the great Edwin Hubble would all eventually contribute to the development of this advanced scientific piece of equipment. Many historians recognise Hans Lippershey as the inventor of the first telescope, as he was the first to apply for a patent. After the ground-breaking work of Hans Lippershey and Galileo Galilei, other scientists around Europe began to design and build their own telescopes.\nImpact of Space Telescope on Astronomy & Science\nTelescopes have given us significant insights into the workings of the universe, allowing science to progress. With the use of the telescope, we realised that the sun was truly at the centre of our Solar System. If it wasn’t for the invention of the telescope, we would not have been able to observe stars & planets that are millions of miles away from us. Telescopes have also allowed us to see the surface of the moon and the weather patterns of other planets.\nEvolution of the Space Telescope\nThe Telescope has contributed to a vast array of discoveries that paved the way for astronomy to exfoliate the mysteries of our universe to a high extent. Modern telescopes now can detect heat and radio waves. Telescopes demonstrate how our planet interacts with others, and they can illustrate the properties of physics such as gravity, energy, etc.\nMore recently, telescopes have allowed us to examine galaxies having planetary systems similar to our very own! We may be able to pinpoint planets where conditions can sustain life like the Earth.\nModern Space Telescopes\n- The Hubble Space Telescope is perhaps the most well-known of the modern-day telescopes. The space telescope is 13.2 meters long and has a 4.2-meter diameter. It launched in 1990 and has completed more than 1.3 million observations since then.\n- NASA is just recently launched James Webb Space Telescope. The Webb telescope primarily acts as an infrared telescope. The mirror in the Webb Telescope comprises 18 different segments that adjust and fold.\nThe invention of the Space Telescope played an instrumental role in perpetuating our understanding of Earth's place in the cosmos. Besides raising the horizons of ingenuity, the invention of the telescope has also played an evocative role in increasing the intrigue of astronomers and astrophysicists around the world. So, if you have a passion for space science and wish to learn more about the universe, then get a telescope and hone your physics and mathematical skills!","domain":"optical_engineering"}
{"url":"https://www.circuiteasy.com/simple-ldr-circuit","date":"2024-04-21T08:10:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.87/warc/CC-MAIN-20240421071342-20240421101342-00255.warc.gz","language_score":0.8625578284263611,"token_count":285,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__33621736","lang":"en","text":"Simple LDR Circuit\nHere is very simple circuit for activating a light in darkness using LDR and few components. Here LDR is used as sensor and Transistor is used as electronic switch.\nProject Model based on LDR\nSimple LDR Circuit Diagram\nWhen light falls on the surface of LDR, the LDR changes its resistance. The more the light, the less the resistance. Resistance R1 (100K) and LDR is connected in series and makes a potential divider circuit. Divided voltage varies according to the intensity of the light. LDR is connected with Ground so voltage drop increases when light intensity increases. It responds to large part of light spectrum.\nThe centre point of the Potential Divider is fed to a NPN Transistor BC147/BC548. This general purpose NPN silicon transistor conducts when base voltage is approx 0.5V or above when compared to emitter voltage and circuit gets completed thus LED glows in darkness.\nb) 100K Resistance\nc) Transistor BC548\nThis Magic Eye circuit is very cheap and easy to make. Will cost you arround 20 Cents (Rs 15) only.\nThis LDR circuit can be used to make Automatic street lights, Electronic Letter Box, Electronic eye, Automatic Vehical headlights, Automatic Garden lights etc.","domain":"optical_engineering"}
{"url":"https://blog.brukerafmprobes.com/new-probe-product-updates/bruker-afm-probes-now-offering-sharp-conductive-probes/","date":"2022-08-08T12:26:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570827.41/warc/CC-MAIN-20220808122331-20220808152331-00142.warc.gz","language_score":0.8668073415756226,"token_count":626,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__178278636","lang":"en","text":"Bruker AFM Probes Now Offering Sharp Conductive Probes\nSharp Conductive Single Crystal Diamond Probes\nHighly conductive Apex Sharp diamond probes, formed by a unique patented process ensure the best possible nanomechanical and electrical performance. These tips are sharper and last longer than any other electrical AFM probe. The conductive diamond coating is highly doped with boron which leads to a macroscopic resistivity of 0.003 – 0.005 Ohm∙cm. Contact resistance is typically 10 kΩ depending on contact radius measured on a silver surface. By using wear-resistant sharp diamond probes the contact size is well characterized and stays constant during mechanical measurements. Quantitative and repeatable measurements for over 24 hours of continuous use have been demonstrated with these probes. A gold reflex coating deposited on the detector side of the cantilever to enhance the reflectance of the laser beam.\nChoose among two tip radii and three spring constants to match your application:\n– AD-0.5-AS – L=225um, W=50um, k=0.5N.m, f=30kHz, r=10+/-5nm\n– AD-2.8-AS – L=225um, W=35um, k=2.8N.m, f=65kHz, r=10+/-5nm\n– AD-40-AS – L=225um, W=28um, k=40N.m, f=180kHz, r=10+/-5nm\n– AD-0.5-SS – L=225um, W=50um, k=0.5N.m, f=30kHz, r<5nm\n– AD-2.8-SS – L=225um, W=35um, k=2.8N.m, f=65kHz, r<5nm\n– AD-40-SS – L=225um, W=28um, k=40N.m, f=180kHz, r<5nm\nThese tips are specifically designed for high mechanical loads and scratch testing applications. By using wear-resistant diamond and a broad cone angle the contact size is well characterized and stays constant during repeated mechanical measurements. These probes have demonstrated highly repeatable deep (~100nm) indentations into materials such as fused silica and can image the indents at high resolution in-situ using the same probe. Each cantilever comes individually characterized with both spring constant and tip radius accurately measured, to enable fully quantitative nanomechanical measurements. Each probe comes with a high-resolution SEM image showing the precise tip shape to enable fully quantitative measurements. A gold reflex coating deposited on the detector side of the cantilever to enhance the reflectance of the laser beam.\n· AD-150-NM – L=125um, W=30um, k=150N/m, f=500kHz, r=10+/-5nm","domain":"optical_engineering"}
{"url":"https://www.wolfheartband.com/bulky.php?c=speech&offence=MjU3OTEyZGU5M2M5OWJhOTNkMzQ2M2I3NmQ0ZTEwMjk-FK","date":"2021-02-27T10:13:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178358798.23/warc/CC-MAIN-20210227084805-20210227114805-00006.warc.gz","language_score":0.8662983775138855,"token_count":3259,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__102549118","lang":"en","text":"Laser optoacoustic imaging for medical\nJournal of electronic imaging journal of medical imaging journal of micro/nanolithography, mems, and moems journal of nanophotonics journal of photonics for energy neurophotonics optical engineering ebooks advanced search > yang lou. Scientists at eth zurich and the university of zurich have used machine learning methods to improve optoacoustic imaging. Brochu, joanna brunker, james joseph, michal r. O basic knowledge of microscopic imaging o practical experience with laser-based optical systems. Of applied physics of the ras, russia. Therapeutic laser treatments depend on subjective evaluation of the skin in order to.\nWrite a sonnet for me\n- A new technique developed by munich researchers, known as multi-spectral optoacoustic mesoscopy (msom), has now been shown capable of resolving optical contrast through tumor volumes that are at least 1,000 times larger than those possible with optical microscopy, enabling high-resolution visualization of tumor heterogeneity patterns;\n- Photoacoustic imaging and spectroscopy - google;\n- Frame rate was 10 hz;\n- Our portfolio includes transgenic cancer cell lines stably expressing irpf720 and tyrosinase (both labels provide good contrast in optoacoustic imaging), systems for retroviral gene transfer and various chemical labels for primary cells;\n- To do so, they recruit blood vessels in their environment;\n- It is attractive from a biological perspective as it is insensitive to photon scattering within biological tissue and has non-invasive medical imaging capabilities;\n- Imaging of the gastrointestinal (gi) tract largely relies on the inspection of the wall lining using optical endoscopy procedures or virtual endoscopic methods based on image analysis of radiologic approaches such as computed tomography;\n- The group is centered around provision and development of cell lines and animal models for optoacoustic imaging;\nTechnological progress and novel contrast media have resulted in optoacoustic imaging being propagated to basic cancer research and in. Read the latest news and expert advice about medical optics and photonics companies, industries, and research labs. Ce mark awarded to ithera medical's msot acuity. O knowledge on the physics of semiconductors and laser diodes. Phd candidate (f/m) in optoacoustic microscopy applications. Multispectral optoacoustic tomography (msot): the next generation in molecular imaging. Researchers use drones, machine laser optoacoustic imaging for medical learning to detect. Arridge image reconstruction in optoacoustic tomography accounting for frequency-dependent attenuation, patrick la riviere, jin zhang, and mark a. Abstract optoacoustic (oa) pulse echo (pe) imaging is a hybridized modality that is capable of providing physiological information on the basis of anatomical structure. Optoacoustic (oa) or, synonymously, photoacoustic (pa) imaging is a spectroscopic technique to measure optical absorption in semitransparent solids and liquids. This \"cited by\" count includes citations to the following articles in scholar.\nPowerpoint presentation topics for mechanical engineering\nModel based reconstruction has been suggested as an -projection algorithms to improve the accuracy of optoacoustic imaging, further incorporating transducer and laser characteristics into the inversion procedure ,. Mesoscopic and macroscopic optoacoustic imaging of cancer. Optics and photonics technical briefs, medical design. For example, in superharmonic imaging, low frequency (f 0) ultrasound waves are transmitted to excite microbubbles for nonlinear responses, and the high order of harmonics (. \"an optoacoustic guide with augmented reality system towards precision breast conserving surgery\" l lan, k liu, y xia, j wu, r li, lk han, p wang*, jx cheng*, light: science & applications, 2018. 6086, 7th conference on biomedical thermoacoustics, optoacoustics, and acousto-optics - photons plus. The stress waves contain information about the distribution of structures with preferential optical absorption. In oa mode, where laser light is absorbed directly in the sample, the contents of blood vessel model is clearly visible. It remains the most complete single volume reference for biomedical engineers, researchers, professionals and those working in medical imaging and medical image. Abstract: we describe a universal system for research in combined real-time optoacoustic (oa) and laser-ultrasonic (lu) imaging. Phd candidate or postdoctoral fellow (f/m/d) in. Novel noninvasive imaging technique can - medical news. It creates grayscale images of internal organs with high frequency sound waves. Light plus sound: imaging and treatment. Combined ultrasound, optoacoustic and elasticity imaging. (2020) spatial heterogeneity of oxygenation and haemodynamics in breast cancer resolved in vivo by conical multispectral optoacoustic : science &.\nPowerpoint presentation topics for mechanical engineering\nIn photoacoustic imaging, non-ionizing laser pulses are delivered laser optoacoustic imaging for medical into biological t. Combining electromagnetic and ultrasonic waves synergistically, photoacoustics can provide deep speckle-free personal statement for medical residency imaging with high electromagnetic contrast at high ultrasonic resolution and without any health risk. Open positions - chair for biological imaging. The laser beam passed through the water and penetrated the cnt-coated polyethylene microspheres with a laser intensity of 6 mj/cm 2. High-resolution optoacoustic imaging will provide a wider feature set of investigational and clinical potential without the need to stain or label the studied biological system. New technique offers high-resolution 3d view inside tumors. System and method for adjusting the light output of an. Malignant tumors consume nutrients and oxygen faster than healthy cells. Introduction: optoacoustic (photoacoustic) imaging offers visualization of optical contrast in tissues, within several millimeters to centimeters, with resolutions that are typical of ultrasound imaging. Have you heard of optoacoustic imaging. Degree in electrical and computer engineering from the johns hopkins university, baltimore, md, resume examples for medical assistant jobs usa, in 2000 to 2005, he was an associate researcher at the fiber optics and telecommunications laboratory. In photoacoustic imaging, non-ionizing laser pulses are delivered into biological tissues (when radio frequency pulses are used, the technology is referred to as thermoacoustic imaging).\nCombined ultrasound and photoacoustic imaging has attracted significant interests for intravascular imaging such as atheromatous plaque detection, with ultrasound imaging providing spatial location and morphology and photoacoustic imaging highlighting molecular composition of the plaque. This paper comprehensively reviews the emerging topic of optoacoustic imaging from the image reconstruction and quantification perspective. Original, peer-reviewed articles delve into the entire spectrum of ophthalmic surgery and treatment. Optoacoustic imaging correspondingly offers important advantages in small animal imaging, including the use of non-ionizing radiation, the versatile sensing of chromophoric * correspondence: dr@ 1institute for biological and medical imaging, technische universit. Optoacoustic imaging instead sends very short laser pulses into the tissue, where they're absorbed and converted into ultrasonic waves. Tomowave laboratories is a vertically integrated company that takes ideas of new technologies based on combination of light and ultrasound from the early stage of research and development to manufacturing and regulatory certification of commercial systems. Optoacoustic imaging: lightening and thunder in tissues. It, 1970 it opto-acoustic spectroscopy rco). Medical laser applications and laser-tissue interactions medical laser application is a broad area for research and development with the vision of improving clinical therapeutic procedures or to extend into new fields for lasers in medical use. Medical grade diode lasers products & suppliers. It can therefore deliver optical visualization of cancer far deeper in tissue than optical microscopy and other conventional optical do homework help students learn imaging methods. Vaccinia virus-mediated melanin production allows mr and optoacoustic deep tissue imaging and laser-induced thermotherapy of cancer j stritzker, l kirscher, m scadeng, nc deliolanis, s morscher, proceedings of the national academy of sciences 110 (9), 3316-3320, 2013. Optoacoustic imaging is an emerging new technology that is gaining momentum within the biomedical research community due to its enhanced capability to provide high-resolution in vivo imaging.\nSample resume for medical transcriptionist without experience\n- Phd candidate or postdoctoral fellow (f/m/d) in optoacoustic sensor development and medical imaging (ibmi) at thehelmholtz zentrum muenchen (hmgu), germany, is the ideal environment for you;\n- Think lightening and thunder in tissues;\n- O'donnell + +biomedical engineering department, university of michigan, ann arbor, usa * applied physics department, university of michigan, ann arbor, usa mspisar@ abstract optoacoustic (oa) detectors have typically suffered;\n- Artefact reduction in optoacoustic tomographic imaging by estimating the distribution of acoustic scatterers;\n- The exam the oa/us exam looks and feels much like a breast ultrasound exam, in that resume templates for medical receptionist is uses a handheld probe, or transducer;\n- Laufer, ben cox, and simon r;\nThe trial, which was conducted by dr. Other endoscopic methods of imaging have been also considered, including ultrasonography and optical tissue-sectioning microscopy methods. Medical optics the scientific focus of the medical optics team is directed towards novel laser applications for medicine and biology, including imaging modalities and laser procedures laser optoacoustic imaging for medical for medical diagnosis and therapeutic treatment. Physics in medicine cie papers online and biology 49: 1339. Improving the optoacoustic signal by monitoring the. Sensors in the probe detect the returning sound waves and generate a picture of the inside of the body. High-resolution 3d view inside breast tumors with laser optoacoustic imaging for medical opto. Additionally, detection sensitivity has been inherently limited by laser. Nchen and helmholtz zentrum, m. Conventional ultrasound imaging systems utilize piezoelectric ultrasound transducers, which suffer from. Photoacoustic medical monitoring and diagnostics shunichi sato*, mutsuo yamazaki ** and minoru obara principle, characteristics, and applications are reviewed of the photoacoustic medical monitoring and diagnostics. Neal 1, daniel razansky 2,3, vasilis ntziachristos 2,3, 1 ithera medical, gmbh, munich, germany; 2 institute for biological and medical imaging, helmholtz zentrum muenchen in order to fully capitalize on the spatial resolution of any optoacoustic imaging system in.\nI need someone to write a book for me\n- Student at washington univ in st louis;\n- The device differs from conventional ultrasound imaging platforms regarding the availability of a laser for signal generation and adapted optics for targeted delivery of the light;\n- Real-time optoacoustic tracking of single moving micro;\n- Similarly to ultrasound imaging, researchers can then detect the waves convert them into images;\n- He is currently a research associate at the laboratory for biophotonics and molecular imaging (lbmi) of iesl/forth and a visiting lecturer at the biology department of the university of crete;\n- Photoacoustics promises to revolutionize medical imaging and may well https://canadapinkfloyd.com/prepare.php?xsB-NGRhYzZhY2YxOTAxMDMwYzFhNmY2NTFkZTI2MzQxOTc&page_id=1785 make as dramatic a contribution to modern medicine as the discovery of the x-ray itself once did;\n- Similarly to ultrasound imaging, the waves are;\n- Generally, the light output of an optoacoustic;\n- Deyo, massoud motamedi, and donald s;\n- To integrate and decipher the huge datasets that emerge from optoacoustic readouts in experimental and clinical settings and to enhance the quality of the extracted information, we are developing advanced methods and state-of-the-art tools for data analysis, image reconstruction, spectral unmixing, and image-based machine learning approaches;\nPush - publikationsserver des phd thesis on purchase intention helmholtz zentrums m. 3d laser optoacoustic ultrasonic imaging system for preclinical research. Ashkenazi, s, witte, rs, kim, k, huang, sw, hou, y & o'donnell, m 2006, 2d optoacoustic array for high resolution imaging. In this work, help homework ict we propose a dual frequency band annular probe for backward mode volumetric pe/oa imaging. Today 135 years later, with advances in photonics, ultrasonics and nanomaterials, the production of sound by optical interactions at the nanoscale is being used to develop new medical imaging technologies, referred to as optoacoustic imaging. Optoacoustic imaging combines the rich contrast of optical methods with the resolution of ultrasound imaging. Ultrasound, photoacoustics, and optoacoustics imaging of transient optical properties for the development of imaging of metabolic functions and activatable imaging probes. He is a pioneer in the field of biomedical optoacoustics. Negative values in the optoacoustic resume examples for sales positions tomography problem. Eu h2020 project \"louisa-3d (clinical validation of laser. One area of medicine where optoacoustic imaging has great potential is. The optically reflective material may be a thin, highly optically reflective. Optoacoustic scanner for small animal imaging anatomical, functional and molecular contrast real-time image acquisition, 150 um resolution listening to molecules. A laser pulse penetrates soft tissue up to a few centimeters in depth and provides 3d-visualization of biological tissues. The laser beam was reflected by a mirror (laser line mirror, edmund optics inc. Christian zakian - group leader: optoacoustic endoscopy. On the use of an optoacoustic and laser https://www.grooveriot.com/elizabeth.php?moss=Lx-professional-resume-writing-services-in-cincinnati&ID=849 ultrasonic imaging. In optoacoustic imaging, very short laser pulses are instead sent. Barrington, nj) installed at 45. Afterwards, optoacoustic parameters such as the optimal laser wavelength and necessary detection. Optoacoustic imaging of thesis statement for mending wall by robert frost gold nanorod based photothermal therapy by mehrnaz tabibi. Using a medical grade, multi-wavelength, opo- based optoacoustic system tunable in the near infrared spectral range (680-950 nm) and a novel, compact, fiber-coupled, multi-wavelength, pulsed laser diode -based system, we recorded optoacoustic signals generated in the posterior part.\n- Top writing service\n- Help writing college essay humanities\n- How i write my cv\n- Get help with college homework\n- Linkedin profile writing services","domain":"optical_engineering"}
{"url":"https://www.toplineoutdoors.com/products/ski-goggles","date":"2022-05-23T13:59:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662558030.43/warc/CC-MAIN-20220523132100-20220523162100-00078.warc.gz","language_score":0.8020262718200684,"token_count":277,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__90121119","lang":"en","text":"This Ski Goggles are anti-scratch, long-lasting, anti-fog performance, helmet compatible and anti-slip strap function, great optical clarity spherical lens with super wide vision;\nSpherical wide-view lens - Double lens made of solid PC material for impact-resistance and anti-fogging.\nExtra long strap - Adjustable strap with comfortable wearing experience and helmet compatibility suitable for different winter sport e.g. skiing, snowboarding, snowmobiling and etc.\nHigh Cost Performance -High quality TPU frame with best impact-resistance and three-layer foam for comfortable wearing. Compatible with helmet and suitable for different winter sports: skiing, snowboarding, snowmobiling and etc.\nReal Full Mirror Tech - Comprehensive REVO coating on outer lens with edge to edge mirror reflection, different VLTs for various weather condition.\nWear Over Glasses (OTG) Goggles features a OTG (over glasses) design that lets you wear your glasses under the goggles.\nFrame Color: Multi\nLenses Optical Attribute: UV400 Protection, Mirror Coating\nSport Type: Skiing\nLenses Color: Multi\nLens Height: 9.8cm\nFrame Material: Acetate\nLenses Material: Polycarbonate\nLens Width: 17.8 cm\nItem Type: Eyewear","domain":"optical_engineering"}
{"url":"http://dingjuled.com/Article/Dingjunewproducts_1.html","date":"2013-05-24T01:50:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704132298/warc/CC-MAIN-20130516113532-00048-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.849364697933197,"token_count":269,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__141319438","lang":"en","text":"According market’s requirement,Dingju Electronic Co., Ltd have designed three types of led car light,led turning light with 16pcs 5050 SMD,led turning light with 21pcs 5050 SMD,led turning light with 13pcs high power.Of course,we can change the socket with your demand.\nLet’s share the feature of those types.\n16pcs 5050SMD turning light and 21pcs 5050SMD turning light can be cool well, It’s with 5050 3chips,this product innovations in the original structure,the light sourc viewing angle is the angle of automobile lamp reflector cup as improve the overall luminaire efficiency, 1156,1157,3156,3157 socket are all available,each of them can be replaced.\nHigh power turning bulb with wide voltage constant current driver.the light source viewing angle also is the angle of automobile lamp reflector cup as improve the overall luminaire efficiency.This high power turning bulb with 13 pcs 85 high power.super bright.It’s the new product on the market.beautiful shape and good heat\nMore product informations will be shown in our website,Any questions and Requirements,Please don’t hesitate to contact with us.","domain":"optical_engineering"}
{"url":"https://www.findyello.com/jamaica/superior-optical-co-ltd/profile/optical/","date":"2023-12-02T11:09:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100399.81/warc/CC-MAIN-20231202105028-20231202135028-00828.warc.gz","language_score":0.925555408000946,"token_count":211,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__98456913","lang":"en","text":"At Superior Optical Jamaica Ltd, we are known for superior frames, lenses and super affordable prices.\nThe business was established in 1981 with the goal of being known for providing the finest eyewear. We offer top brands in eyewear such as Prada, Polo and Rayban, which brings out the daring, stylish, bold, and confident you.\nSuperior Optical offers a variety of lenses including single vision, bi-focal, tri-focal, progressives (noline) and Xperio (sunglasses), plus lenses with added features.\nOur after sales and services includes adjustment and straightening of frames (no charge), replacement of missing screws and tightening of screws (no charge), soldering broken metal frames (at a minimal cost), changing nose pads (at a minimal cost) and changing temples (conditions apply).\nWe are committed to providing our clients with the best services. For more information on how we can help you, give us a call!\nSuperior Frames…Superior Lenses…Super Affordable","domain":"optical_engineering"}
{"url":"http://www.empledlighting.com/Resources/FAQs","date":"2017-03-30T08:47:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218193288.61/warc/CC-MAIN-20170322212953-00475-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8483655452728271,"token_count":211,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__278215073","lang":"en","text":"Turning Innovation Into Value ™\nIncreasing business profitability with LED technology is easier than you think. Find Out How »\nWhat does LED stand for?\nWhat’s so great about LEDs?\nJust how energy-efficient are LED lights?\nWhere are LED lights being used?\nCan LED lighting really save energy and money?\nWhy is LED lighting better than incandescent bulbs?\nDo LEDs get hot?\nWhat are “cool” white LEDs?\nAren’t LED lights too expensive?\nWhy is LED lighting better than fluorescent lighting and CFLs?\nWhat type of light quality can I expect with LED lights?\nCan LEDs run off AC power?\nHow long will LEDs last?\nWhen you switch to LED lighting, you'll save big on:\nHow much could you save?\nCalculate Your ROI »\nLearn More »\nCall Toll Free\nCopyright 2017 Electro-Matic Products, Inc. All Rights Reserved\nWebsite design and developement by Web Ascender","domain":"optical_engineering"}
{"url":"https://tangofpv.com/producto/betafpv-nd-filter-for-dji-o3-camera/","date":"2024-04-23T01:05:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818452.78/warc/CC-MAIN-20240423002028-20240423032028-00048.warc.gz","language_score":0.8774349093437195,"token_count":509,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__102078033","lang":"en","text":"The ND filters are specifically designed for the Pavo Pico Brushless Whoop Quadcopter. Meanwhile, the DJI O3 Air Unit ND Filters are tailored for the DJI O3 Air Unit and are capable of reducing the amount of light that enters the camera lens. With this feature, you can achieve slower shutter speeds or wider apertures when flying. These lightweight filters are crafted from high-quality optical class ensuring optimal image clarity and are too easy to install on the build.\n- DJI O3 filters are easy to install and protect your camera lens from dust, sand, and debris. They ensure uninterrupted high-quality footage during flights and extend the life of your equipment. Customized filters for your drone can enhance your footage and equipment protection.\n- ND filters reduce sunlight brightness, lower camera shutter speed to avoid overexposure, prevent distortion in high-speed motion blur shots and improve drone footage quality.\n- UV filters effectively minimize the blue tone caused by ultraviolet rays in outdoor photography, resulting in clearer, more saturated, and more realistic images. They also protect the camera lens from dirt, sand, and scratches.\n- CPL filters reduce light and mirror reflection, preventing overexposure and white reflections. They improve clarity and brightness, especially over water or reflective surfaces, resulting in a more detailed image with reduced glare.\nThe filter supports two installation methods, To install the filter, align it with the lens position and clip it into the frame horizontally or vertically. To remove it, grip the lens mount with your thumb and pull it out.\nHorizontal installation of the UV filter is more suitable for shooting ground or scenery as it effectively reduces reflections and scattering, avoiding excessive refraction of light that may affect image quality. It also provides added protection to the camera lens surface, reducing the risk of damage. Vertical installation of the UV filter is best for shooting reflective surfaces such as water or glass, as it better reduces reflections and prevents them from interfering with the shot.\n- Item: UV Filter / ND8 Filter / ND16 Filter / ND32 Filter / CPL Filter\n- Weight: 0.74g\n- Adapt Camera: DJI O3 Camera\n- 1 * UV Filter / ND8 Filter / ND16 Filter / ND32 Filter / CPL Filter\n- 1 * ND8 Filter, ND16 Filter, ND32 Filter, CPL Filter (Filter Sets Only)","domain":"optical_engineering"}
{"url":"https://shiningbrightlikeastar.com/2021/06/07/the-features-and-functions-of-a-fiber-optic-camera/","date":"2021-09-20T04:50:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057018.8/warc/CC-MAIN-20210920040604-20210920070604-00708.warc.gz","language_score":0.9241698980331421,"token_count":573,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__19727586","lang":"en","text":"Fiber optic camera allows you to see from another room, from under a door, and through walls. This is especially designed for inspection work. It features a flexible optic bundle with built-in eye piece at one end, and a 2-3mm diameter lens on the other. It’s easy to use. Just put its header under a door to see what is happening on the other side.\nFeatures of a fiber optic camera\nMaintenance of image quality and control data integrity over far distances\nThis is the major feature of staple optics; they have superior signal frequency attributes compared to copper cable. They generate co-axial cable attenuation at a signal frequency of 3-5 MHz and can also be converted to 20 dB/km. In comparison to other transmitters, fiber optics attenuation is between 0.3 and 3 dB/km. This means fiber or staple optic transceiver can cover up to 60 km or more, depending on the precise details of application. Since these transceivers 25g sfp28 feature a conversion of low fiber signals, it can also function as a transmission of multiple video signals over long distances.\nInformation Security and Safety Operations\nUnlike traditional copper cables, fiber optics does not radiate any signals. As a result, these optical cables are virtually immune from wiretapping. The signal frequency is difficult to access for unauthorized parties. There is no risk for installation of fiber or staple optic. It can act as the ignition source for all multiple signals. It can also be used in hazardous environments such as chemical and petro-chemical sites, providing an “intrinsically safe” transmission route; however, this safety may not extend to the electro-optic transmission routers and modems. It may not be guaranteed safe and protected compared to other electrical equipment.\nAccurate use of duct space\nFiber optic transceiver features small and durable lenses. It has protective sheathing applied in different phases, depending on the installation area, to build up the fiber into a multipurpose cable. This cable is suitable for both internal and external use. Generally, its coaxial cables can produce significant savings over copper where there is not enough installation space or where duct space is often restricted.\nResistance to electromagnetic interference\nFiber optic transceiver transmits signals as light pulses instead of electrical pulses. This light transmission process is not affected by the electro-magnetic materials. As a result, the transmissions can be utilized in other application where links are routed near energy conductors and other machines including tramways, power generator, railways, and automobile manufactured with welding machinery.\nThe fiber optic cable also features metal-free construction. This prevents loop problems between non-transmitting light pulses and terminal equipment. The prevention of ground loop enables the media of choice for building links of every distance.","domain":"optical_engineering"}
{"url":"https://eventsafetyplan.com/event-safety-insights/laser-safety-for-events-entertainment/","date":"2024-03-03T16:16:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476396.49/warc/CC-MAIN-20240303142747-20240303172747-00525.warc.gz","language_score":0.9573129415512085,"token_count":460,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__169753231","lang":"en","text":"Laser safety is a crucial aspect of any event, especially in the UK where the use of lasers is heavily regulated. Lasers are often used as a special effect at music events, concerts and festivals – but may also be used at corporate events or at religious ceremonies.\nEvent Safety Plan specialist Sam White looks at some tips for ensuring laser safety at events:\nComply with regulations:\nIn the UK, the use of lasers is regulated by the Health and Safety Executive (HSE) and the Control of Artificial Optical Radiation at Work Regulations (AOR). It is important to comply with these regulations, which include guidelines for laser classification, laser safety officer (LSO) appointment, and risk assessments.\nAppoint a Laser Safety Officer (LSO)\nThe LSO is responsible for ensuring that the laser equipment is used safely and that all necessary precautions are taken to protect the health and safety of those present at the event. The LSO should have a good understanding of the hazards associated with the use of lasers, and should be trained in the appropriate use of laser equipment.\nConduct a Risk Assessment\nA risk assessment should be conducted to identify any potential hazards associated with the use of lasers at the event. This should include an assessment of the audience, the laser equipment and the event environment. The results of the risk assessment should be used to develop a laser safety plan for the event.\nUse appropriate laser equipment\nIt is important to use laser equipment that is appropriate for the event, and to ensure that the equipment is in good working order. This includes ensuring that the laser equipment is properly labelled, has been provided by a competent contractor and that it is being operated by trained personnel.\nHave an emergency plan in place\nHaving an emergency plan in place is essential in case of an incident involving laser equipment. The emergency plan should include procedures for responding to an incident and for providing medical attention if necessary.\nBy following these tips, you can help ensure that safety is a priority, and that all necessary precautions are taken to protect those working at or in attendance. Remember to stay informed and up-to-date on the latest laser safety guidelines and regulations, and to work closely with the Laser Safety Officer (LSO) to ensure that the laser equipment is used safely.","domain":"optical_engineering"}
{"url":"http://mathematicsi.com/pocket-mirror-for-men","date":"2018-01-19T13:13:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887981.42/warc/CC-MAIN-20180119125144-20180119145144-00003.warc.gz","language_score":0.9445467591285706,"token_count":617,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__260628633","lang":"en","text":"Pocket Mirror For Men – While driving, the traffic situation on the road keeps on changing within seconds since it’s a dynamic process. Drivers maintain their focus on amassing awareness about traffic ahead, ignoring the traffic situation on sides and rear of the car. They don’t use rear view and side mirrors (fender or wing mirrors) for properly observing the space between you and side driver. Vehicles lacking special purpose side mirrors cause severe accidents and even traffic jams. Negative mirrors, also called wing mirrors, are mainly positioned at the exterior of the cars helping the driver to eye on the areas supporting and surfaces of the car that doesn’t encounter his peripheral vision. Horizontal and vertical adjustments of those mirrors are designed to provide adequate coverage to the drivers of varying height.\nIn most cars, mirror glasses are electrically heated and occasionally include electro chromic dimming that helps in reducing glare from the head lights of the subsequent vehicles. Some of them are armed with turning signals, which not only give safety throughout the driveway but also an appealing appearance to the vehicle. Experts think that side-view mirrors prove beneficial for the drivers to see people driving in their own lane and at the rear. Some fender mirrors may be brushed or manually shielding them from any harm when the car is parked. Automobiles passing your automobile can easily snip protruding wing mirrors. Hence, the folding capability protects them from any harm.\nEarlier flat mirrors were utilized with unit magnification, i.e. that an undistorted 1:1 image was obtained, but unit magnification restricts the area of vision. Later, UNECE (United Nations Economic Commission for Europe) controlled to use convex, planar, or aspheric mirrors. There’s a considerable distance between the driver’s eye and passenger side mirror; therefore, a very helpful field of view can only be attained using an aspheric or convex mirror. Convex mirrors decrease the objects. This makes these objects appear farther than their first space. It might give the wrong idea to the driver about space of the subsequent car, and he will change the lane imagining safe space between them both.\nAdjusting Side-View Mirrors\nProper positioning of those mirrors is crucial for good visual habits as the purpose of mirrors is to detect, to not gather information. Adjustment of side-view mirrors is very straightforward.\n1. To correct the driver’s side-view mirror, put your head next to the left side window and then bend the mirror so that you can just see the side area of your vehicle.\n2. To correct the passenger’s side-view mirror, put your head in such a way that it’s just over the middle console. Now, set the mirror so that you can barely see side surface of the automobile at the left portion of a mirror.\nSince the high heeled morning begins, auto protection becomes a critical issue. Be certain that your car is equipped with crucial driving accessories such as side-view mirrors.","domain":"optical_engineering"}
{"url":"https://mhaiyang.github.io/ICCV2019_MirrorNet/index","date":"2023-02-02T12:31:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500017.27/warc/CC-MAIN-20230202101933-20230202131933-00221.warc.gz","language_score":0.8474960923194885,"token_count":478,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__235491220","lang":"en","text":"Where Is My Mirror?\nXin Yang1,* Haiyang Mei1,* Ke Xu1,3 Xiaopeng Wei1 Baocai Yin1,2 Rynson W.H. Lau3,†1 Dalian University of Technology 2 Peng Cheng Laboratory 3 City University of Hong Kong\n* Joint first authors † Rynson Lau is the corresponding author and he led this project\nMirrors are everywhere in our daily lives. Existing computer vision systems do not consider mirrors, and hence may get confused by the reflected content inside a mirror, resulting in a severe performance degradation. However, separating the real content outside a mirror from the reflected content inside it is non-trivial. The key challenge lies in that mirrors typically reflect contents similar to their surroundings, making it very difficult to differentiate the two. In this paper, we present a novel method to accurately segment mirrors from an input image. To the best of our knowledge, this is the first work to address the mirror segmentation problem with a computational approach. We make the following contributions. First, we construct a large-scale mirror dataset that contains mirror images with the corresponding manually annotated masks. This dataset covers a variety of daily life scenes, and will be made publicly available for future research. Second, we propose a novel network, called MirrorNet, for mirror segmentation, by modeling both semantical and low-level color/texture discontinuities between the contents inside and outside of the mirrors. Third, we conduct extensive experiments to evaluate the proposed method, and show that it outperforms the carefully chosen baselines from the state-of-the-art detection and segmentation methods.\nMirror Segmentation Dataset (MSD)\nUpdated Dataset Statistics\n|(a) mirror area distribution||(b) mirror shape distribution||(c) mirror location distribution||(d) color contrast distribution|\n|Paper||: [ MirrorNet.pdf ]|\n|Mirror Segmenation Dataset||: [ Google Drive ]|\n|Experimental results||: [ Results.zip ]|\n|Pre-trained model.||: [ MirrorNet.pth ]|\n|Source Code.||: [ Code ]|","domain":"optical_engineering"}
{"url":"https://naturalvision.us/Natural-Vision-ELLEGANT-Blue-Azul-p145418641","date":"2021-05-08T20:21:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988923.22/warc/CC-MAIN-20210508181551-20210508211551-00308.warc.gz","language_score":0.8118014931678772,"token_count":366,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__216593720","lang":"en","text":"Natural Vision USA. 100% Authentic BRAZIL brand. Free Shipping in USA!!!\nBrazil' MOST POPULAR Brand\nHigh Quality Colored Contact Lenses\nPlease contact for more details.\nTEXT to 702-329-5851\nThe Ellegant Natural Vision Contact Lenses have 4 color options. Colored contact lenses cater to users seeking only aesthetic use.\nDisposal: Yearly;Packing: 1 pair;Curvature (mm): 8,6 (41,00 x 46,00);Diameter: 14.0;Manufacturing System: Cast & Sandwiches Dyeing Technology;Power: 0 Degree ONLY/ NON-PRESCRIPTION/ PLANO\nMADE IN BRAZIL\nMERELY ILLUSTRATIVE PICTURES.NATURAL VISION USA is not responsible for the final result of the color. The photos / images are provided by the manufacturers themselves and therefore are merely illustrative, and may not achieve the expected result according to the color that is on the site.\nWE DO NOT EXCHANGE AND RETURN COLORED LENSES FOR AESTHETIC REASONS.\nNatural Vision USA is an authorized online store in the US specializing in cosmetic colored contact lenses from Natural Vision Brazil. We are known for selling the most realistic lenses in the game with celebrities and major influencers from all over the world now wearing them. We pride ourselves on delivering high quality lenses straight to your door anywhere within USA.\nThe durability of Natural Vision colored contact lenses we have available on the US market is up to one year as soon as you open the package. Natural Vision colored contacts are worn for cosmetic purposes only for the US market, we only sell NON-PRESCRIPTION lenses which is 0 POWER (please email your prescription after purchased).","domain":"optical_engineering"}
{"url":"https://revistadechimie.ro/article_eng.asp?ID=3202","date":"2019-10-18T14:10:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986682998.59/warc/CC-MAIN-20191018131050-20191018154550-00517.warc.gz","language_score":0.8531132936477661,"token_count":213,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__56113975","lang":"en","text":"BEATRICE-CARMEN ZELINSCHI, CARMEN-FELICIA DASCALU, DANA ORTANSA DOROHOI INTERFERENTIAL WOOD FILTERS WITH CHEMICAL PURE QUARTZ FROM MARAMURES AREA AS ANISOTROPIC LAYER\nPreliminary XRD and optical studies regarding the purity and the transparence of some quartz samples provided from different Romanian mountains areas, conducted us to choose the quartz crystal from Maramures area in the design of some Wood interferential optical filters working in the visible range. The interferential Wood filter consists from an anisotropic layer between two crossed polarizers. For the selected quartz crystal, the birefringence dispersion can be neglected. Consequently, the value of the birefringence measured at l =589.3nm was used in the simulation process. A decrease in the band-width of the transmission bands was evidenced when the thickness of the anisotropic layer increased.","domain":"optical_engineering"}
{"url":"https://store.jacobshall.org/products/raspberry-pi-camera-noir","date":"2024-04-14T03:48:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00601.warc.gz","language_score":0.9103760123252869,"token_count":130,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__197946127","lang":"en","text":"The Raspberry Pi HD Pi NoIR Camera Board connects to any Raspberry Pi or Compute Module, allowing you to create HD video and still photographs. The Pi NoIR (No Infrared) is the same as the standard camera module but without an IR filter. Therefore, it is great for photography and video in the dark. The module utilises the IMX219PQ image sensor from Sony, which offers high-speed video imaging and high sensitivity. The Pi NoIR module offers reduced image contamination such as fixed pattern noise and smearing. It also features automatic control functions such as exposure control, white balance and luminance detection.","domain":"optical_engineering"}
{"url":"https://akashdeepnetralay.com/equipments-akashdeep-eye-hospital-miraj/","date":"2023-12-05T20:50:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00210.warc.gz","language_score":0.8783820271492004,"token_count":988,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__308094854","lang":"en","text":"Only centre in western Maharashtra and northern Karnataka with Robotic Laser (LASIK). State of Art German technology (800 Hz) for quick refractive correction. Advanced eye tracker and flying spots with parallel beams. Excellent patient comfort. Extremely precise and highly safe. Option of bladeless correction and presbyopic correction.\nOptical Coherence Tomography (OCT) is a non-invasive diagnostic technique that shows cross sectional view of the retina and anterior segment (cornea, anterior chamber, iris and angle). OCT is useful in the diagnosis of many retinal conditions,corneal pathologies and angle abnormalities viz. angle closure glaucoma.\nThe Pentacam® is the only instrument on the market able to perform a precise and complete analysis of the entire cornea (Anterior & Posterior). It’s a combined device consisting of a slit illumination system and a Scheimpflug camera which rotates around the eye, which avoids measurement errors that would result from horizontal scanning. This contact-free process takes less than two seconds. A must for pre-lasik evaluation, Contact lens fitting and diagnosing corneal diseases like keratoconus at a very early stage. Modern formulae to note the progression of ectasias.\nWith the state of art Multispot Green Laser Precision control, safety, and efficiency of the photocoagulation procedure is combined with optimized patient comfort and convenience.\nOperation Theatre is equipped with Laminar airflow and Hepafilter. Finer details like Air velocity, Air changes per hour, Air filtration, temperature/humidity control and overall infrastructure have been designed according to NABH and QCI standards (International hospital accreditation body for Quality Control).\nThroughout the world the name of Carl Zeiss stands for the highest quality and reliability. Microscope is equipped with legendary ZEISS optics that deliver brilliant, crystal clear resolution and bright illumination, fully integrated into a compact optical head.\nState of art retina setup for complex retinal surgeries. Advanced vitrectomy with modern instruments and equipment to give the best possible outcome.\nAccurate IOL prediction is crucial for patient satisfaction in state of the art cataract surgery. Lenstar provides all measurements needed to take full advantage of the latest generation IOL prediction methods for improved refractive outcomes after cataract surgery. Lenstar simultaneously provides laser interferometric biometry of the entire eye.\nAlcon LAUREATE® World Phaco System combines the quality you’ve come to expect from Alcon (the world leader), with the latest advances in phacoemulsification technology. It employs advanced ultrasound performance, INFINITI® Vision System U/S handpiece & State-of-the-art fluidics to provide optimized outcomes that minimize surgical complications.\nHigh spec endoscope for lacrimal surgeries. A must for endonasal procedures including treatment of congenital naso-lacrimal duct obstruction.\nA treatment for keratoconus which has shown great success is Corneal Collagen Crosslinking with Riboflavin to increase the corneal strength.This has shown to arrest the progression of keratoconus in numerous studies all over the world.\nFundus photography is also used to document the characteristics of diabetic retinopathy such as macular edema and microaneurysms. Glaucoma can damage the optic nerve over time. Using serial photographs, subtle changes in the optic nerve/retina are studied and appropriate therapy is recommended.\nPrecise readings from autorefractometer are key to prescribing a spectacle correction. Topcon auto refractometers are gold standards for refraction. It gives precise values of the refractive error and the axis of the cylinder.\nAutomatic Ethylene oxide sterilizer for surgical instruments. Highly efficient at killing germs. Autoclave machine also helps in ensuring the instruments are sterilized.\nA perimeter measures all areas of your eyesight.It can help find certain patterns of vision loss which correspond to specific eye diseases. It is very useful in finding early changes in vision caused by nerve damage from glaucoma.Regular perimetry tests can be used to see if treatment for glaucoma is preventing further vision loss.\nThe most common complication of cataract surgery is clouding of the part of the capsule, called posterior capsule opacification.State of art, Nd:YAG laser is used to cut a hole in the clouded back lining of the lens capsule.\nPrecise estimation of Intra Ocular Pressure (IOP) is essential for early detection of Glaucoma.Keeler intelligent puff system embodies electronic and optical technology to deliver you the speed, accuracy and ease of use in estimation of IOP.","domain":"optical_engineering"}
{"url":"http://ptc-computer.com.kh/shop/planet-ip-camera-dome-ica-4150/","date":"2017-03-23T18:18:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218187193.40/warc/CC-MAIN-20170322212947-00445-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.7376818060874939,"token_count":282,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__234093340","lang":"en","text":"|Compact and cost-effective 720p HD Surveillance|\nPLANET ICA-4150 PoE IP Camera provides high resolution images for round-the-clock surveillance over IP networks. It supports H.264 compression formats and delivers excellent picture quality in 720p HD resolutions at 30 frames per second (fps). Its outdoor and handy features enable you to easily install the camera in any public areas, such as buildings, gardens, parking areas, markets, balconies, railway stations and hospitals.\n1/4″ 1 mega-pixel progressive scan CMOS sensor\nAngle of view, Fixed lens 3.6mm, F1.4, Horizontal: 75 degrees, Vertical: 55 degrees\n0 lux (B/W), 0.1 lux (color) @ F1.2\n1280 x 720 pixels\n720p / 720 x 576 / 640 x 480 / 352 x 288 / 320 x 240 / 174 x 144\n10 privacy masks, 2D noise reduction, Brightness, saturation, contrast, Mirror/Rotate, Text, time and date overlay, WDR\nConstant and variable bit rate (H.264), Controllable frame rate and bandwidth, Simultaneous multi-profile streaming, Streaming over TCP, HTTP, or HTTPS\n-10 ~ 50 degrees C\nOnly logged in customers who have purchased this product may leave a review.","domain":"optical_engineering"}
{"url":"https://technokilo.com/samsung-200mp-camera-isocell-hp1/","date":"2022-01-29T03:47:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320299927.25/warc/CC-MAIN-20220129032406-20220129062406-00709.warc.gz","language_score":0.8575966954231262,"token_count":534,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__158790916","lang":"en","text":"Samsung trying to outrun rivals in the camera game.\nSamsung has now unveiled the first 200MP camera sensor for smartphones, ISOCELL HP1. It is based on Samsung’s 0.64μm sized pixels. It provides ultra-high resolutions in the small packaging, ice on the cake.\nNew Samsung ISOCELL HP1 provides amazing low light performance because of ChameleonCell pixel-binning technology. ChameleonCell pixel-binning technology allows the sensor to use two-by-two, four-by-four, or full pixel layout according to the environment. In low-light conditions, the new Samsung ISOCELL HP1 can merge 16 neighboring pixels into a large 2.56μm sized pixel. A larger size pixel helps to capture more light and results in brighter photos.\n“ISOCELL HP1 can also produce\nthe 8k video at 30fps.”\nISOCELL HP1 can also produce the 8k video at 30fps and minimum loss in view. The new sensor merges the four neighboring pixels to create a 50MP effective resolution and results in 8k video with no need for cropping or scaling down image resolution.\nAlong with the stunning ISOCELL HP1, Samsung also announced the ISOCELL GN5. ISOCELL GN5 is the industry’s first 1.0μm to integrate dual-pixel pro. Duel-pixel pro is multi-directional autofocus technology.\n“Places two photodiodes, the smallest in the industry, within each 1.0μm pixel of the sensor either horizontally or vertically to recognize pattern changes in all directions. With one million phase-detecting multi-directional photodiodes covering all areas of the sensor, the ISOCELL GN5’s auto-focusing becomes instantaneous, enabling sharper images in either bright or low-lit environments.”\n-Samsung on ISOCELL GN5\nISOCELL GN5 uses Samsung’s very own pixel technology that applies Front Deep Trench Isolation (FDTI) on a Dual Pixel product for the first time in the industry. This technology allows each pixel to hold more information about light and improves its full-well capacity (FWC) along with decreasing crosstalk within the pixel.\nSamsung has shared no information about when will see the new sensors in Samsung smartphones. Samsung might equip these in the company’s new Flagship S22 series, but we are not sure. Stay tuned, we will let you know.","domain":"optical_engineering"}
{"url":"https://www.unexbuilding.com/smart_film_779.html","date":"2023-09-30T06:59:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510603.89/warc/CC-MAIN-20230930050118-20230930080118-00096.warc.gz","language_score":0.8994375467300415,"token_count":238,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__145579607","lang":"en","text":"What is PDLC smart film glass?\nPDLC (Polymer Dispersed Liquid Crystal) Glass is a kindly laminated glass, which can change to be transparent or opaque instant by switching the electricity power by means applying with PDLC film. When power off, coming visible light scatters through the PDLC, and the film turns translucent;When power on, coming visible light transmits the PDLC and the Film turns clear.\n1.Privacy protection. As most important function, smart glass can be changed from transparent to opaque via easy model ON & OFF.\n2. Perfect function of safety. As smart glass is a special kind of laminated glass, it has all the good function of the laminated glass, mainly the security.\n3. Blocks more than 99% UV rays ,avoiding fading in the room.\n4. Sound proof. With excellent damping action, the smart glass is easy to block the noise.\n5.Projection. When it is under suitable light, the perfect projection appears.\n6.No trouble of curtain setting and cleaning.\n7.With a modern looking, very good for interior design.","domain":"optical_engineering"}
{"url":"https://www.implantable-device.com/2011/12/21/second-sights-implantable-retinal-prosthesis/","date":"2023-11-29T22:33:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00235.warc.gz","language_score":0.9076317548751831,"token_count":332,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__64030118","lang":"en","text":"Second Sight Medical Products, Inc., located in Los Angeles, CA, was founded in 1998 by Alfred Mann to develop a retinal prosthesis to provide sight to patients blinded from outer retinal degenerations, such as Retinitis Pigmentosa.\nSecond Sight’s Argus II Retinal Prosthesis System is intended to provide electrical stimulation of the retina to induce visual perception in blind individuals. The implant is an epiretinal prosthesis surgically implanted in and on the eye that includes an antenna, an electronics case, and an electrode array. The external equipment includes glasses, a video processing unit (VPU) and a cable.\nThe Argus II Retinal Prosthesis System bypasses the damaged photoreceptors altogether. A miniature video camera housed in the patient’s glasses captures a scene. The video is sent to a small patient-worn computer (i.e., the video processing unit – VPU) where it is processed and transformed into instructions that are sent back to the glasses via a cable. These instructions are transmitted wirelessly to an antenna in the implant. The signals are then sent to the electrode array as pulses which bypass the damaged photoreceptors and stimulate the retina’s remaining cells, which transmit the visual information along the optic nerve to the brain, creating the perception of patterns of light. Patients learn to interpret these visual patterns.\nIn Mach 2, 2011, Second Sight announced that it had received the CE Mark for the Argus II retinal prosthesis.\nCompany website: www.2-sight.eu\nClick here for Second Sight’s patents.","domain":"optical_engineering"}
{"url":"https://backtohiking.com/best-hunting-binoculars/","date":"2021-06-21T10:08:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488269939.53/warc/CC-MAIN-20210621085922-20210621115922-00106.warc.gz","language_score":0.9330857396125793,"token_count":4401,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__167343083","lang":"en","text":"Every type of hunting requires the use of good binoculars. Some would say that they are just as essential as a hunter’s gun. As a hunter, you need binoculars to observe your surroundings and get up close to potential targets. If you have been having trouble deciding what the best hunting binoculars are, we’re here to give you a helping hand. This can include things such as determining species, their specific sex, assessing the range or simply getting a closer view of your target.\nNowadays, with such a vast array of products that exist in the current market, it’s difficult to separate the wheat from the chaff. One of the first pieces of advice we can give you is to read as much info as your time allows you to. Go through several hunting binocular reviews by customers, pay attention to the product description, and research the manufacturing brand and its reputation.\nBe sure to correlate your needs and preferences with the features you’re looking for in your new binoculars. Estimate your budget and analyze your options accordingly. If you want to save some time, have a look at the following buying guide we have created for your consideration.\nIf you want to succeed at hunting and other outdoor activities, you need to use all your senses to their utmost. Hearing, smell, touch, even taste sometimes – but most of all your eyesight. Keen vision is what’s going to show you the signs of an excellent place to set your hide or spot the first glimpse of approaching prey so you can use your walkie-talkie to radio into your hunting partners. Sometimes your natural eyesight can use a helping hand, though.\nDepending on the type of hunting you do, specifications like magnification and objective lenses diameter can make a big difference. Some other things to take into consideration include price, compactness, whether you’re hunting in low light, and more. To help you find the right pair for you, we rounded up the best binoculars for a variety of hunting situations.\nBest Hunting Binoculars Review\n1.Vortex Optics Viper HD Roof Prism Binoculars\nThis Vortex Optics alternative is one of the top-rated binoculars in the line, which comes as no surprise considering the number of features it comes with. It is one of the best compact binoculars for hunting. There is an O-ring that can seal any kind of debris and moisture and can make it impossible for it to penetrate the binocular. By this, the unit is both patches of fog proof and waterproof.\nThere is a fully multi-coated model that offers excellent image quality on account of its high-density extra-low dispersion glass. The Vortex Optics Viper HD 10×42 beats the game. It comes to customer reviews, as there are many buyers who claim that the rubberized body and comfortable grip of this alternative cannot be matched by any other one.\nThere is some individuals have mentioned that this model might be a little heavier than expected and that it has a smaller field of view compared to others. There is some package that includes an extensive array of accessories, ranging from a rain guard and comfort neck strap to a deluxe padded carry case.\n10x magnification and 42mm objective lenses, the Viper HD binoculars have an advanced high-density optical system with enhanced anti-reflective lens coating for stunning image quality and top tier light transmission. It will provide dielectric, multi-layer prism coatings provide bright, clear, color-accurate images.\nThe coating on roof prism models enhances resolution and contrast. There is a compact, rubber-armored chassis and armortek coating ensures the Viper HD is ready for any hunt. It has adjusted the multi-position eyecups to maximize custom fit for comfortable viewing with or without glasses.\nThere is a locking right eye diopter that adjusts for focal differences between your eyes. It has argon purged and O-ring sealed, the Viper HD defies the elements ensuring waterproof and fog-proof performance, no matter the conditions.\n- A high-density optical system delivers exceptional resolution\n- The package includes an extensive array of accessories\n- A compact, rubber-armored chassis, and armortek coating\n- Adjust the multi-position eyecups to maximize custom fit for comfortable viewing\n- FOV is quite low, even for a 10×42 pair of binoculars\n- Clarity of the image drops off at larger distances\n2.Leica Ultravid 8×42 HD Plus Binoculars\nIf you want a sturdy pair of high functional hunting binoculars, the Leica Ultravid is one of the best models you can find on the market today. It is also the best binoculars for deer hunting. The durability of this product can’t be overstated but despite that, it’s not bulky like a lot of competitors, and it doesn’t skimp on functionality either.\nWhen you want to get a sturdy pair of binoculars for hunting you will consistently come across one problem – the sturdiest models are also incredibly heavy and bulky. The preferable prisms of the new binoculars are made from specially formulated SCHOTT glasses with exceptional transmission characteristics. The Leica Ultravid HD-Plus 42 binoculars therefore also offer the increased contrast performance in all viewing situations, and particularly in an unfavorable light.\nThere are Leica Ultravid HD-Plus 42 models which are available with 7×, 8× and 10× magnification and are identified by an engraved ‘HD’ in red on the strap lugs of the binoculars. These binoculars feature exceptionally high-quality lenses that reduce flare to an absolute minimum. These shock-absorbent armoring protects the binoculars against damage while also providing excellent grip for safe and steady handling.\n- Made from specially formulated SCHOTT glasses with exceptional transmission\n- Offer increased contrast performance in all viewing situations\n- Exceptionally high-quality lenses that reduce flare to an absolute minimum\n- It has a 92% light absorption ratio, higher than most binoculars\n- Lightweight and compact compared to most direct competitors\n- The cost is quite high\n- They are not ergonomic enough\n3. Zeiss 10×42 Conquest HD Binocular with LotuTec Protective Coating\nZeiss 10×42 Conquest HD Binocular with LotuTec Protective Coating is one of the best binoculars for elk hunting. If you want a binocular that’s good all-around – the Zeiss Conquest is probably your best bet. They can function in almost any condition, and they have exceptional specs, especially when you consider the price.\nThis pair of binoculars features a standard type of magnification for the hunting of 10x and a lens size of 42mm. The lenses are made out of good, high-quality glass and absorb up to 90% of all light, so they perform great in most conditions.\nThis is one of the standout features of these binoculars since the FOV is 377 feet at 1000 yards, far more than what you get with most 10×42 binoculars. If you’re hunting in open space or need to track fast prey, these are the binoculars you should get.\nFor the most part, the durability here is good. The binoculars feel solid, and they are resistant to water and dirt damage. Moreover, they don’t weight too much, only 28 ounces in total. However, while they are durable on the whole, some parts are of questionable quality. The eyecups are extremely flimsy, and they seem to break for no reason whatsoever.\nOther than that, some of the products have been known to have factory defects like misalignments. Luckily, you can just call the company and they’ll give you a replacement for the faulty product, no questions asked.\nThere is a compact lightweight ergonomic design for ultimate comfort in the field. It has LotuTec water-shedding outer coatings for all-weather use. It is basically designed and manufactured with traditional German quality. There are rotating and lockable eyecups for eyeglass or non-eyeglass wearers.\n- Compact lightweight ergonomic design for ultimate comfort in the field\n- LotuTec water-shedding outer coatings for all-weather use\n- Designed and manufactured with traditional German quality\n- Rotating and lockable eyecups for eyeglass or non-eyeglass wearers\n- The largest field of view in its class\n- Some parts, like the eyecups, are poorly made\n- There are some problems with alignment reported\n4. Swarovski EL 10×42 Binocular with FieldPro Package\nIf you want a quality pair of binoculars that perform great in low-lighting conditions, the Swarovski EL is a product you will love. You can get the best experiences with it as it is thought the best hunting binoculars for the money. The “EL” stands for “exceptionally light,” and that’s completely true. It also comes with a good set of extras making it a high-value package. Frankly, this is the best long-range binoculars for hunting on my list.\nWith a magnification of 10x and lenses that are 42mm in diameter, this is a fairly standard pair of hunting binoculars. Where they stand out is their great light absorption rate of 90% along with the high quality of the lens glass, making them sharp and comfortable. They perform exceptionally well in less-than-optimal lighting conditions. The image is also exceptionally clear no matter the conditions.\nThese binoculars are more than sturdy enough and are made out of quality materials. Even if something does break, which is unlikely, the warranty has you covered lifetime for the lenses and ten years for everything else. The field of view at 1000 yards is around 336 feet, which is about average for 10×42 binoculars. If you want something with more FOV than that, you’re going to have to look elsewhere, but it’s not bad by any means.\nThis Item Includes the Swarovski Optik EL 8.5×42. Binocular, Field Bag, Eyepiece Cover, Objective Lens Cover, Lift Carrying Strap. The Swarovski Optic has 10 Year Warranty for Other Part. The magnification is 8.5. The effective objective lens diameter is 42mm. The exit pupil diameter is 4.9mm. The exit pupil distance is 20mm.\n- Great light absorption and low-light performance\n- Clear image in all conditions\n- Sturdy and resistant to water and dust\n- Easy-to-use covers\n- Equal FOV for eyeglass wearers\n- One of the priciest hunting binoculars on the market\n- They weigh a bit more than similar binoculars\n5. Nikon 7548 MONARCH 7 8×42 Binocular\nThis is a standard pair of 8×42 binoculars, and the image stays consistently clear even at longer distances. The Dielectric High-Reflective Multilayer Prism Coatings Applied to the lenses help with image clarity and make the colors true to life. The lenses will stay clear in any condition, and they are highly durable. At this point of checking the price, it’s quite affordable considering the market. For it, you still get a carrying case and lens protectors with it, making it a great deal.\nDespite what you may think, these binoculars are also fairly durable. However, make sure not to dip them in water since their waterproofing is poor and you most likely won’t be able to get the warranty accepted. The real standout feature of these binoculars is the incredibly high FOV of 420 feet at 1000 yards, making it one of the best ones in its class.\nIt has the Monarch 7 8×42 that provides an exceptionally wide field of view that makes it easy to find your subject. There is also dielectric high-reflective Multilayer Prism Coatings are applied to all lenses and prism coatings to provide high-contrast images and accurate color reproduction.\nThanks to a durable rubber-armored coating, The Monarch 7 is comfortable to hold and rugged enough to stand up to any conditions. There is also extra-low dispersion glass enhances brightness and color fidelity it has roof prisms with phase-correction Preserve clarity and detail. It had highly reflective dielectric prism coating renders. There is an anti-reflective multi-coated lens system.\n- Extra-low dispersion glass enhances brightness and color fidelity\n- Roof prisms with phase-correction Preserve clarity and detail\n- Highly reflective dielectric prism coating renders\n- The anti-reflective multicoated lens system\n- The Monarch 7 is comfortable to hold\n- Poor warranty\n- The waterproofing is not effective\n6. Bushnell Legend Ultra HD Roof Prism Binocular\nWhen you are looking for the compact binomials, it is the best compact binoculars for hunting. If you are also looking for a secondary pair of binoculars with a wider FOV, the Bushnell Legend Ultra HD will probably fit your needs. They come at an extremely affordable price so they’re great if you need something you’ll use only occasionally.\nThese binoculars usually feature 10 x magnifications with lenses that are 42mm wide. The optical quality is very much exceptional, and the clarity is good even at longer distances. With 340 feet at 1000 yards, these binoculars do not feature the widest FOV in their class, but they are certainly above average. This is what makes them especially helpful for western-style hunting.\nThere is a rain guard HD water-repellent lens coating. There is also lightweight, magnesium chassis. This device provides the waterproof & fog proof facility. It also includes a soft carrying case, Microfiber carry bag & neck strap. It has also the 10x magnification, 42mm objective lens binoculars.\nThere is also exceptional optics with ED Prime Glass, Ultra Wide Band Coatings, and Rain Guard HD water-repellent lens coating. There is ultra wide field-of-view with long eye-relief; locking diopter.\n- Rain guard HD water-repellent lens coating\n- Lightweight, magnesium chassis\n- Waterproof & fog proof\n- Includes a soft carrying case, Microfiber carry bag & neck strap\n- Incredibly lightweight\n- Poor durability\n- They are difficult to set up properly\n7. Vanguard Endeavor ED II Binocular with Premium Hoya ED Glass\nThe Vanguard Endeavor is a waterproof and fog proof pair of best-hunting binoculars that features a 3-stage twist-out eyecup system with long eye relief. The model has fully multi-coated lenses, a feature that is quite popular among other binoculars in the same line.\nThe magnification of this alternative is 8x, while the diameter of the objective lens is 42mm. The field of view is measured at 367 feet per 1000 yards. The eye relief measures 19 mm and the unit weighs in at 25.8 ounces.\nThis model is well-known for its resolution and clarity since most of the individuals who have purchased it recommend it for the quality of the image. From what we have gathered, the Vanguard Endeavor ED is actually one of the most acclaimed binoculars on the market today, as it has garnered tons of positive reviews. In fact, most of the shoppers claim that the optics of this product is great.\nThe US product warranty is valid only when shipped from or sold by an authorized reseller. Visit the Vanguard World company website for a list of authorized dealers\nPremium HOYA extra-low dispersion (ED) glass virtually eliminates chromatic aberration for true color transmission across the entire field of view and phase-corrected Bak4 prisms provide improved light reflection, high contrast, and true color fidelity\nOpen-bridge design reduces weight and provides a more comfortable grip and 3-stage click-stop twist-up eyecups for use with or without eye-wear. You will get 100% waterproof and fog proof, advanced lens coatings for enhanced light transmission even in low light conditions, and Premium Lifetime Warranty.\n- 100% waterproof and fog proof\n- Premium Lifetime Warranty\n- Open-bridge design reduces weight\n- Provides a more comfortable grip and 3-stage click-stop twist-up eyecups\n- True color transmission across the entire field of view\n- One of the smallest FOVs in its class\n- They perform poorly in low-light environments\nCriteria for Evaluating The Best Hunting Binoculars\nWhen it comes to the magnification, bigger isn’t always better, and you need to know the range at which you intend to hunt to get the best binoculars for hunting deer.\nIf the magnification is not high enough, you’ll end up not seeing the elk you’re hunting properly and in time. However, if it’s too high you might have a pair of hunting binoculars that require a tripod to steady and have a narrow FOV.\nFor hunting in the woods or hunting faster deer, you will need binoculars with smaller magnification, 6x to 8x would be ideal. You will be able to have a wide field of view to track your pray easily, and trees won’t block your view too much.\nHunting in the plains, the mountains, the desert or other open spaces that need you to observe from long distances requires larger magnification. 10x magnification or preferably more is a good choice here. This will allow you to spot the deer long before it can spot you.\nIf you’re unsure about which magnification you need, pick one between 7x and 10x since that will fit most hunters. Don’t pick binoculars with too many superfluous since most of them lack certain essential features like waterproofing and can be too heavy. 10 x magnifications is not a significant upgrade over 7x though lots of hunters are under the impression that it is.\nFrequently Asked Questions (FAQs):\nWhat are the best binoculars for deer hunting?\nApart from varmints deer are the most popular quarry for American hunters, so that’s probably the biggest market for hunting binoculars. All the same, factors apply here, but there are a few things about deer hunting to take into consideration.\nDeer are woodland animals, so you’re usually going to be bow hunting or rifle hunting in and around cover. That makes magnification less critical because the ranges you’ll be working at aren’t that great, so a steadier image is likely to be at a slightly more magnified one.\nWhat are the Best Hunting Binoculars for the Money?\nWhile this answer is somewhat subjective, the Bushnell Legend Ultra HD gets great reviews, and is a reasonable price point for binoculars made by a manufacturer with a track record in hunting optics.\nWhat are the best value compact hunting binoculars?\nThe Bushnell Powerview is an excellent choice if you are looking for both cost-effectiveness and value. They come in many different magnifications while remaining compact, and are extremely budget-friendly.\nWhat are the best hunting binoculars for buck hunting, elk hunting or for other big games?\nThe Bushnell Green Roof Trophy Binoculars are a great 10x magnification option, especially for hunters on a budget.\nWhat are the best hunting binoculars on a budget?\nAnother vote for the Bushnell Green Roof Trophy binoculars due to cost. 10x magnification power with a strong performance track record and fully multicoated optics are hard to beat.\nI hope I’ve managed to help you choose the best hunting binoculars and that my reviews of the best binocular brands on the market. These binoculars are most certainly worth the price, and they’re just the best ones all-around.\nFinding the right pair of binoculars is no different than choosing the right pocket knife or fixed blade survival knife for your outdoor excursions. You need to understand what it is that will best fit your needs and pick the model that you will get the most use from.\nWhile we can provide you with all the guidance in the world, only you can narrow down the Binoculars that are best for your unique hunting situation. Our parting thoughts are that if you are spending most of your time hunting in the daylight and not at dawn or dusk, go with the 10×42 magnification and spend a little more than you had originally planned on.\nThe quality will be worth the investment. If you intend on hunting at a wide variety of times and need something that’s easier on the wallet, the 8×42 options are great.\nCompact Binoculars should only be purchased if you are needing something very portable or are tight on cash. These will work in a pinch but not as good as the other models that were made for a better field of view.","domain":"optical_engineering"}
{"url":"https://productmaxusa.com/best-small-binoculars/","date":"2021-09-28T03:53:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060201.9/warc/CC-MAIN-20210928032425-20210928062425-00078.warc.gz","language_score":0.8572379946708679,"token_count":2746,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__228022888","lang":"en","text":"Best small binoculars is one of those things that seem like they are probably all the same. But if you are looking for buying the same then we are here to help you choose the best one from the large marketplace online. Today we are going to share with you a comprehensive guide about Best small binoculars with. This guide will help you to choose the best one from the various list.\n- 【HIGH-POWERED LARGE EYEPIECE BINOCULARS】 This binoculars has 12x magnification, 25mm objective lens and wide field of view, 273ft/1000yds, letting you look farther and see wider. Coating with FMC Broadband coating and premium BAK4 prism, it ensure imaging verisimilar.\n- 【ADJUSTABLE EYE CUPS FIT EYEGLASS WEARERS OR NOT】The binocs can be pull down the rubber eyepieces and more fit the glasses wearer, getting close to lens and see easily. The long eye relief combined with large eyepiece give you a comfortable viewing while wearing sunglasses or eye glasses. For those who do not wear glasses, will gain more focused slight and feel more easeful through rising eye cups. The compact binoculars has 15mm large eyepieces, can see more clear image than other binoculars.\n- 【FMC BROADBAND COATING TECHNOLOGY】The lightweight cruise binoculars is cover with BAK4 prism texture. The objective lens use optical FMC multilayer broadband green film, and the eyepiece-optical is made of blue FMC coating. All design ensure to provide a good image and make you have a amazing experience.\n- 【PORTABLE, COMPACT AND SMALL BINOCULARS DESIGN】 One hand can be mastered when you use the birding binoculars for opera,bird watching camping, traveling,wildlife watching,football games,cruise or other outside activity, the low light night vision goggles(Not for completely dark night) is more convenient for using and carrying.\n- 【DURABLE AND LIFE WATERPROOF, COMFORTABLE TOUCH】 The binoculars are made of ABS plastic and it also come with a cruise binocular strap, you can use this item in different situations. And rubber armor is made for secure grip.The pocket size binoculars is not only suitable for men and women,but also suitable for kids.It is wonderful to be a gift on Father's Day and Children's Day.\n- Multilayer-coated kenses for brighter images\n- High-reflectivity silver-alloy mirror coatings for a bright and clear view\n- Turn-and-slide rubber multi-click eyecups\n- Water Proof and Fogproof\n- 【18mm Large Eyepiece Binoculars, Larger Image, Clearer Details】2.25 times the image size of 12mm eyepiece (e.g. 10x25, 12x25, 10x21 binoculars), 1.28 times of 16mm eyepiece (e.g. Ordinary 10x42, 12x42 binoculars). Large eyepiece binoculars make full use of 12x magnification, deliver larger image, ensure clearer details\n- 【16.5mm Big BAK4 Prism Lens Binoculars, Super Bright, Crisp View】Collect 32% more light than 12.5mm prism lens (e.g. 10x25, 12x25, 10x21 binoculars), 13.7% of 14.5mm prism lens (e.g. Ordinary 10x42, 12x42 binoculars). 16.5mm Prism lens take 100% advantage of 42mm objective lens, collect more lights, deliver brighter view\n- 【Powerful 12x42 Binoculars for Adults with only 1.25lbs.】With only 560g weight, Adasion 12x42mm binoculars deliver 367ft/1000yds large field of view. Perfect binoculars for bird watching, hunting, sports events. Binoculars with adjustable eye cups, suitable for glasses wearers.\n- 【Binoculars with New Phone Adapter, Enjoy Photographing】Quick alignment, compatible with phone case, portable and stable. Suitable for iPhone X, 8P, 8, 7P, 7, 6, 6s, 6P, 5, 5s, Samsung GALAXY S8, S7, S6, S6 Edge, S5, Note, Huawei, LG, HTC, Sony, Etc.\n- 【Quality Binoculars, Order without Risk】With 100% thorough Quality Control, Adasion provides High Quality Binoculars. Contact us if you encounter any issues, we will solve it in 24 hours.\n- 【Compact Roof Prism 10x42 Binocular】 10X power magnification and large field of view, specially designed for outdoor activities such as climbing, hiking, driving, watching wildlife and scenery. This power also can be used for watching large stage play, vocal concert, a football game, etc.\n- 【HD Superior Optics】 Best 42mm fully multi-layer coatings green film objective lens and 18mm blue film eyepiece, Large smart phrase BAK4 prism, guarantee the key elements of an optical device, make your view brighter, clearer and deliver crisp images.\n- 【Durable Framework and Rubber Armor】 Its tight fitting protection makes it usable to withstand the toughest weather conditions. The shock-absorbing rubber armor for maximum protection.\n- 【Complete Binocular Accessories】 Comes with Newest Smartphone Mount compatible with Smartphone 11, 11 Pro, Xs, X, 8p, 8, 7p, 7, 6, 6p, Samsung S10/S10p, S9/S9p, S8/S8 Edge, S6/S6 Edge, Note, LG, HTC,Sony, and more. Also comes with Carrying Case, Rubber Lens Covers, Cleaning Cloth, Neck Strap.\n- 【Lifetime Warranty And Lifetime Technical Support】 Shop with confidence, you have it covered by Gosky lifetime warranty and a full money-back and replacement guarantee, on all orders to allow you to test the suitability of our product.\n- 【Powerful 12x42 Binoculars, but Lightweight Enough, Weight only 1.1 pounds】 Equipped with 12x powerful magnification 42mm large objective lens and 367ft/1000yds large field of view. Capable of delivering a clear face from more than 650 feet away. 0.6 Pounds lighter than 10x50 full size binoculars.\n- 【18mm Large Eyepiece Binoculars, Larger Image, Clearer Details】 2.25 times the image size of 12mm eyepiece binoculars (e.g. 10x25 12x25 10x21 compact binoculars). Large eyepiece makes full use of 12x magnification, delivers larger image ensure clearer details.\n- 【HD Vision with Quality Optics】 Large 16.5mm BAK4 Prism and Fully Multi-coated lens guarantee the key elements of an HD vision brighter view and crisp images. Perfect for birds watching, hunting, Concerts and Sports.\n- 【Clear Low Light Vision】 Adorrgon Binoculars deliver clear vision in weak light condition but not in not completely darkness. Perfect for Hunting or Concerts at night. Comes with Carrying Case*1, Eyepiece *1, Lens Protection Covers*1, Cleaning Cloth*1 and Neck Strap*1.\n- 【Waterproof, Lightweight, Durable and Anti-slip Grip Binoculars】 Perfect for traveling or hunting. Durable structure with odorless rubber armor for shock-resistance and Anti-slip grip.\n- 10 magnification with 25mm objective lens provides high definition without a color-changed or blurred image. The 10 magnification boasts a viewing field of 362ft at 1000 yds, so you'll be able to observe a great deal without actually adjusting their position.\n- Fully multi-coated optics provide for a brighter view and sharp images. All glass surfaces have multiple coatings, resulting in light transmission of 96.48% for bright, sharp and contrast images, and non-chromatic aberration. Based on this these binoculars also provide low light night vision.\n- Lightweight, small, compact binoculars. The foldable design and only 0.6lb lightweight make them can be folded into palm-size, so it's ideal for an even broader range of long-distance pursuits. You wish there were binoculars set in your backpack. No need to keep regretting about your trips when get these affordable and compact binoculars.\n- The rubber armor ergonomic design and steady grip allows for accurate focusing, and have shock-resistance, anti-skid features while the design is slim and simple. Rugged construction rubber eye relief provides comfort for spectacle wearers, as do a dioptric adjustment ring and the strap mount.\n- Binoculars for adults and kids. These binoculars are fully competent and able to work for bird watching, hunting, hiking, travel, sports events, theater and concert. Also ideal great gifts for Chrismas, Father's Day and boys girls gifts.\n- 1 PROFESSIONAL BINOCULARS With 10X magnification, 50mm lens and 367ft/1000yds large field of view\n- 2 QUALITY OPTICS Full coating guarantee excellent light transmission to improve image brightness\n- 3 ANTI-SLIP GRIP Durable structure with odorless rubber armor for shock-resistance and Anti-slip grip\n- 4 EASY TO FOCUS Diopter System adjusting the imbalance vision of both eyes. (Adaptable to tripod)\n- 5 ADJUSTABLE EYEPIECE Can be twisted up and down for different people to adjust in a proper eye relief\n- Aculon A211 10 22x50 zoom binoculars are designed to be as light as possible along with excellent ergonomics\n- Easy to reach fingertip zoom control knob allows for quick and easy adjustment of the binoculars magnification from 10 up to 22 power. Interpapillary distance adjustment (millimeter) - 56-72\n- Turn and slide rubber eyecups allow for comfortable viewing during extended periods of use; Minimum focus distance 49.2 feet / 15 meter\n- Multicoated eco glass lenses deliver a bright and clear image in most lighting conditions; Field of view 1000 meter (meter/feet) 66/199; Apparent field of view (°) 36.7; Real field of view (°) 3.8\n- A durable rubber armored coating ensures a non slip grip, even in wet conditions; Exit pupil is 2.3 - 5 millimeter\n- Perfect compact lightweight binoculars for bird watching. Can be Used for both day and night (low-light-level night vision, can't see anything in complete darkness)\n- Large Field of View.Focusing in on your target for brilliant detail at 1000 yards out.\n- Fully multi-coated lenses, waterproof, compact gives you everything you want. Lightweight and can be folded, very convenient and easy to carry, perfect binoculrs for adults and kids.\n- 10x magnification with 25 mm objective lens allows you to see objects 10x’s closer clear view, share precious hiking, football games, bird watching, Wildlife Watching memories with your friends.\n- Suitable for both adults and kids, fit for hunting, hiking, exploring, viewing, sailing, bird watching, concert, outdoor sports etc.\n- [ Professional Roof Prism Binoculars ] Designed with 8X power magnification, 21mm objective lens and 369ft/1000yds large field of view, allows you get a wide and clear view from over 1000 yards away\n- [ Pocket Binoculars Mini Size ] The lightest Roof binoculars for only 175g, Lightweight as the phone. Fordable and portable design perfect for taking around anywhere--opera, concert, theater, shows, traveling, hiking, safari, wildlife, bird watching, outdoor sports.\n- [ HD Vision with Quality Optics ] Lens made with Bk7 Roof Prism and FMC muti-coated broadband green film increasing light transmission for a brighter view and sharp images.\n- [ Easy to focus ] Adjust by smooth \"center-focus knob\" and right eye lens, easy to focus even for kids. Suitable for whole family both adults and kids.\n- [Reliable Warranty] We promise worry-free 12 months warranty and 24/7 customer service. Any time you encounter any problems don't hesitate to contact us. We will present a satisfactory solution for you.\nTop 10 Best small binoculars\nWe have done much research and reviewed many products in the same category, and here we have listed the top 10 Best small binoculars that you can take a look and choose the best one that is perfect for your requirement.","domain":"optical_engineering"}
{"url":"http://www.bellinlaser.com/en/product.php?id=76","date":"2020-07-08T11:24:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655896932.38/warc/CC-MAIN-20200708093606-20200708123606-00334.warc.gz","language_score":0.7901326417922974,"token_count":129,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__246823887","lang":"en","text":"Integrated Design, Compact Structure\nRepetition frequency adjustable from 1Hz to 2000kHz\nPulse on demand\nBurst Mode output\nPower monitoring and adjustment\nCutting&Drilling on Glass & Ceramics\nBrittle Materials Processing\nSuzhou Bellin Laser Co., Ltd, established in 2007, is committed to research & development, production, and sales of various types of industrial-grade solid-state lasers and ultra-short pulse lasers. The products are mainly composed of nanosecond laser, picosecond laser and femtosecond laser. The wavelengths are 355nm, 532nm and 1064nm etc.","domain":"optical_engineering"}
{"url":"https://stagesuperstore.co.uk/product/ledj-aspect-exterior-3w-red-feature-light","date":"2024-04-12T18:59:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816045.47/warc/CC-MAIN-20240412163227-20240412193227-00761.warc.gz","language_score":0.8705857992172241,"token_count":128,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__849882","lang":"en","text":"This stylish, compact feature light has 3 x 1W LEDs that produce a bright beam of light to illuminate and highlight outdoor areas including gardens, paths, foliage and facades. This IP65 rated fixture comes in a die-cast alloy housing and has a Hydralock 0.75m power input/output linkable trailing connections for professional installation.\nSpecification3 x 1W red LEDs\nBeam angle: 35 Degree, 320 Lux @ 2m\nHydralock power input/output linkable trailing connections (75cm), 7mm Degree mounting hole\nHydralock power cable not included","domain":"optical_engineering"}
{"url":"https://www.almsbroadband.org/Associates/challenger-optics","date":"2024-02-29T01:41:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474775.80/warc/CC-MAIN-20240229003536-20240229033536-00468.warc.gz","language_score":0.8263578414916992,"token_count":107,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__133357304","lang":"en","text":"Sales Development Representative\n618 S. Glasgow Ave.\nInglewood, CA 17331\nChallengerOptics is laser-focused on all your optical network construction fiber taps, pedestals, vaults, enclosures, and optical assemblies. ChallengerOptics has the knowledge, expertise, and inventory to meet your critical fiber construction requirements for both inside and outside plant. ChallengerOptics is also a Tier 1 distributor of Amphenol Broadband Solutions. ChallengerOptics has a full line of distribution WDM optical test & measurement.","domain":"optical_engineering"}
{"url":"http://mu-varna.bg/EN/Pages/Lekcionen-kurs_LLLT.aspx","date":"2017-01-18T16:10:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560280308.24/warc/CC-MAIN-20170116095120-00324-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.916846752166748,"token_count":246,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__223243290","lang":"en","text":"The lecture course on topic \"Lasers - low-energy laser therapy\" will take place in auditorium room \"Assoc. Prof. Dimitar Klisarov\" at the Faculty of Dental Medicine from 13:30 on 25th of October (Friday). The course is divided into two models: Physics of the laser and Low-energy laser therapy. The course is opened for all students, residents and PhD students who are interested in the topic and will be in Bulgarian language.\nIn the first module \"Physics of lasers\" the participants will be familiarized with the principles of the laser's work and the characteristics of the laser beam as well as physics of the light in the tissues and specific practices of the lasers in dental medicine.\nIn the second module \"Low-energy laser therapy\" Dr. Veselina Bozalieva from the Faculty of dental medicine in Plovdiv will reveal the essence of the photobiology and a laser simulation and principals and peculiarities of the low-laser therapy. Among the questions and topics which will be discussed are the mechanisms of action of the red and infrared laser radiation, absorption characteristics of the laser beam, separate heal steps and analyses of the therapeutic effect.","domain":"optical_engineering"}
{"url":"http://bimsds.ns02.biz/qubit/Organic-Light-Emitting-Diodes-Phd-Thesis-Pdf.html","date":"2021-02-27T09:09:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178358798.23/warc/CC-MAIN-20210227084805-20210227114805-00077.warc.gz","language_score":0.8864956498146057,"token_count":1165,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__92562390","lang":"en","text":"This thesis investigates the use of the large-area, roll-to-roll compatible deposition technique of ultrasonic spray coating for the fabrication of polymeric organic light-emitting diodes (OLEDs). Firstly, in Chapter 4 a range of different materials are investigated as potential solution processable electron-injection layers, typically this layer is deposited via thermal evaporation in OLEDs.\nA range of new materials for organic light emitting diodes (OLEDs) synthesised in the Department of Chemistry at Durham University have been characterised and electroluminescent devices containing these materials have been optimised. High triplet oxadiazole based electron transport materials were tested in devices blended with the host material poly(9-vinylcarbazole) (PVK).\nThe Electrical and Mechanical Study of the Flexible Organic Light Emitting Diodes Chien-Jung Chiang A thesis submitted to the Faculty of Science, The University of Durham, for the degree of Doctor of Philosophy Organic Electroactive Materials Group Department of Physics University of Durham January 2011. 3 Declaration All material contained in this thesis is original and is the result of my.This thesis is focused on the study of the physics and the engineering of organic light-emitting diodes that will aid in the realization of efficient organic polariton LEDs. The main body of work examines various organic semiconductor materials in their ability to reach the strong light and matter interaction regime and, subsequently, to be used in OLEDs as the emissive component. Furthermore.Organic light emitting diodes (OLEDs) are being commercialized in display applications, and will be potentially in lighting applications in the near future. This thesis is about the design of high performance OLEDs, which includes both the electrical and optical design of OLEDs. In particular, the following work is included in this thesis: i) Energy level alignment and charge injection at.\nIndeed, most applications of organic light-emitting diodes are related to visible light emission (e.g. illumination, signs and displays). That is the reason why the optical characteristics of OLEDs are usually given and compared in photometric units (not radiometric). Photometry is essentially radiometry normalised to the spectral response of.\nOrganic Field-Effect Transistors for Sensing Applications Francesco Maddalena PhD thesis University of Groningen The Zernike Institute for Advanced Materials PhD Thesis series 2011-25 ISSN: 1570-1530 ISBN: 978-90-367-5145-2 ISBN: 978-90-367-5146-9 (digital version) The research described in this thesis was performed in the research group of Molecular Electronics: Physics of Organic.\nOptimizing the Molecular Design of Triarylamines, Phthalocyanines, Subphthalocyanines, and Their Derivatives using Organic Light Emitting Diodes by Trevor G. Plint A thesis submitted in conformity with the requirements for the degree of Doctorate of Chemical Engineering Faculty of Chemical Engineering and Applied Chemistry University of Toronto.\nInterestingly, these organic semiconductors can be utilized in organic light-emitting diode devices. The series of newly developed organic compounds pave the way for dual role of a material in organic light emitting diodes and perovskite solar cells applications.\nFluid characterisation and drop impact in inkjet printing for organic semiconductor devices Sungjune Jung St John’s College This dissertation is submitted for the degree of Doctor of Philosophy Manufacturing and Management Division Department of Engineering University of Cambridge April 2011. i Declarations This dissertation is the result of my own work and includes nothing which is the.\nPolymer Light-Emitting Diodes Herman Theunis Nicolai. Device Physics of White Polymer Light-Emitting Diodes Herman Theunis Nicolai PhD. thesis University of Groningen Zernike Institute PhD thesis series 2012-07 ISSN: 1570-1530 ISBN: 978-90-367-5397-5 (Printed version) 978-90-367-5398-2 (Electronic version) The research presented in this thesis was performed in the research group Molecular.\nThis thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the Author. The content must not be changed in any way or sold commercially in any format.\nRed-orange organic light-emitting diodes of a TADF emitter 2-(4 (diphenylamino)phenyl)-10,10-dioxide-9H-thioxanthen-9-one (TXO-TPA) have been reported by doping in a mixed p-type host system of.\nMagnetoresistance and Doping Effects in Conjugated Polymer-Based Organic Light Emitting Diodes Hang Gu School of Physics and Astronomy Queen Mary University of London Supervisors: Dr. Theo Kreouzis Professor William Gillin Submitted for the doctor degree of Philosophy. 2 Declaration I declare that all the work contained within this thesis is accomplished by myself during my study in Queen.\nThis is the official institutional research repository for the University of St Andrews. The repository contains electronic theses and research publications including articles, conference proceedings, working papers and some research monographs. It also contains material and publications affiliated to the University and arising from specific projects. Full text content is provided for all.\nThis thesis is about new ways to experimentally realise materials with desired nano-structures for solutionprocessable optoelectronic devices such as solar cells and - light-emitting diodes (LEDs), and structure-performance relationships in examine these devices.","domain":"optical_engineering"}
{"url":"http://www2.it.lut.fi/project/imageret/","date":"2017-04-24T07:25:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119120.22/warc/CC-MAIN-20170423031159-00112-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.7525059580802917,"token_count":1019,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__170887520","lang":"en","text":"Optimal Detection and Decision-Support Diagnosis of Diabetic Retinopathy\n\"Medical Data Acquisition and Image Processing\"\nThe ultimate goal of the Imageret project is to develop new imaging hardware and novel image processing methods to efficiently and reliably assist in medical decision making in diabetic retinopathy diagnosis.\nThe goal can be achieved by combining the knowledge from medical science, optics, and image processing and via the scientific research provide new results to be used in medics. Furthermore, by educating new young masters and doctors within the field of medical image processing and medical image acquisition the future requirements of the health care can be met.\n- DiaRetDB -\nStandard Diabetic Retinopathy Database\n- FunIA -\nFundus Image Analysis\n- FunImaging -\nDevelopment of Fundus Imaging\n- DiagSupport -\nSupport of Diagnosis and Decision Making\n- RETINA - Retinal Image Analysis\nProject received significant funding from the FinnWell Technology Program coordinated by the Finnish Funding Agency for Technology and Innovation, Tekes, and from the industrial partners.\nThe results of ImageRet were presented in a public closing seminar on Wednesday, January 14, 2008 in Tampere. The presentations were given by prof. Heikki Kälviäinen/LUT, Prof. Hannu Uusitalo/KuY/TaY, MSc Tomi Kauppi/LUT, and MSc Pauli Fält/UJo.\nThe project officially ended February 28, 2009. The scientific results will be finished during the year 2009. During the project, a prototype of a new eye fundus camera was developed, several eye fundus image databases related to diabetic retinopathy were released, and automatic image analysis methods were developed. The technology and knowhow is being transferred to product development.\n|Lappeenranta University of Technology|\n|Lasse Lensuemail@example.com||WWW||Project manager, post-doc researcher|\n|Joni Kämäräinenfirstname.lastname@example.org||WWW||Post-doc researcher|\n|Tomi Kauppiemail@example.com||WWW||Post-graduate researcher|\n|University of Kuopio|\n|Hannu Uusitalofirstname.lastname@example.org||WWW||Research director|\n|Valentina Kalesnykieneemail@example.com||WWW||Post-graduate researcher|\n|University of Joensuu|\n|Jouni Hiltunenfirstname.lastname@example.org||WWW||Laboratory engineer|\n|Pauli Fältemail@example.com||WWW||Post-graduate researcher|\nSource code / executables\n- ImgAnnoTool - Image Annotation Tool (contact Lasse Lensu for more information)\n- DIARETDB0 - Standard Diabetic Retinopathy Database (depricated)\n- DIARETDB1 - Standard Diabetic Retinopathy Database (depricated)\n- DIARETDB1 V2.1 - Standard Diabetic Retinopathy Database\n|Current Perspectives of Diabetic Retinopathy||Very good description of the problem we are dealing with (with images)|\n|European Vision Research||Health science oriented portal for vision research in EU|\n|The Association for Research in Vision and Ophthalmology||Health science oriented portal for vision research in USA and worldwide|\n|Other research groups|\n|Cercia Center, University of Birmingham||Taken spectral fundus images (see facilities)|\n|Kestrel Corporation||Investigates multi-spectral fundus imaging device|\n|School of Computer Science, University of Birmingham||Image analysis, retinopathy, spectral imaging|\n|Messidor||Diabetic retinopathy evaluation|\n|Conferences and meetings|\n|Engineering the Eye II: Imaging the Retina||Retinal function, retinal disease, and advances in optical imaging|\n|Medical Image Data Types and XML|\n|David Clunie's Medical Image Format Site||You find everything you need to know|\n|XML Validation Form||Can be used to validate XML code|\n|HL7||Standardisation organisation for healthcare IT|\n|Multiple expert annotation fusion|\n|STAPLE||Simultaneous Truth and Performance Level Estimation|\n|Medical imaging libs and software|\n|ITK||ITK Insight Toolkit|\n|Kitware||Various usefull toolkit and libraries|\n|Teem||Various tools to process medical image data (e.g. NRRD format)|\nDo not hesitate to to contact authors (e-mail, etc.) in order to retrieve copies or reprints of the following publications.","domain":"optical_engineering"}
{"url":"https://www.rangerpointprecision.com/single-post/2016/05/26/night-sights-for-lever-action-rifles-you-bet","date":"2024-04-13T16:59:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816820.63/warc/CC-MAIN-20240413144933-20240413174933-00776.warc.gz","language_score":0.8946776390075684,"token_count":403,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__137482459","lang":"en","text":"Night Sights for Lever Action Rifles? You Bet!\nRapid target acquisition with bright, clear sight picture (day or night); Secondary “holdover” aim point for \"on the fly\" shooting at greater distances; Flush mounted rear sight on a precision machined scope mount rail.\nPrior to this first-of-its-kind integrated backup sights system, virtually all gun sights designed for use as a backup to primary optical scope systems, particularly on traditional, dropped comb rifles, forces the shooter to mount the primary optical device in a high or otherwise unwieldy position. Additionally, most sight systems have been a compromise between large, open apertures, which afford good light throughput at the cost of precision, or smaller “peep” apertures, which afford better precision at the cost of poor light throughput. Lastly, non-glass aiming devices - commonly referred to as iron sights - have only afforded one aiming point, with no provision for secondary aiming points \"on the fly\" for shooting at greater distances. HIGHLIGHTS: - Rapid target acquisition and a bright, clear sight picture via a hybrid rear sight design, which combines a wide oval shaped aperture with an open top for good light throughput - Night sights use glow in the dark paint that can be illuminated with a flashlight and stay glowing for 1-3 hours - A precise aiming point, by utilizing rear sight “reticle” bars that align with a triangular front sight - A means of quickly estimating secondary “holdover points” by incorporating elevation notches in the front sight triangle - Elevation and windage adjustable without punches and hammers AVAILABILITY: - Marlin 336, 1894, 444 and 1895 rifles today! - Henry 30-30, 45-70 (June 2016) - Universal Sight Sets for most make/models of rifles - front/rear sight dovetail attach, no scope mount needed (end of June 2016)","domain":"optical_engineering"}
{"url":"https://neje.shop/collections/replacements/products/neje-laser-module-sliding-card-slot-upgrade-kit","date":"2020-10-20T23:33:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107874340.10/warc/CC-MAIN-20201020221156-20201021011156-00364.warc.gz","language_score":0.6737645864486694,"token_count":221,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__3703400","lang":"en","text":"NEJE laser module sliding card slot upgrade kit\n1. Compatible with NEJE Master2 machine, you can slide to adjust the focus;\n2. Suitable for NEJE 30mm size modules, it is recommended to use with NEJE 3500mw, 7W, 20W modules.\n3. 40mm size module can be installed, but it will affect the Y-axis engraving size when NEJE Master2 is running.\n4. Cnc composite material + aluminum alloy material slot, built-in spring.\nAssembled pulley block x 1\nLarge wrench x 1\nWe Also Recommend\n2020 NEW NEJE Laser Engraving Machine Replace Mainboard for DK-8-KZ Replacement parts\n2020 NEW NEJE Laser Engraving Machine Replace Mainboard for DK-BL Replacement parts\n2020 Replace Mainboard for NEJE Laser Engraving Machine Master 2 Supports App Control\nLaser Module Holder Laser Head Clamps for NEJE Master Laser Engraver and Cutter necessary accessory for DIY carving","domain":"optical_engineering"}
{"url":"https://nybkusa.com/products/non-prescription-lenses","date":"2019-05-20T03:04:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255536.6/warc/CC-MAIN-20190520021654-20190520043654-00385.warc.gz","language_score":0.9024399518966675,"token_count":149,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__78679933","lang":"en","text":"[NYBK Online Prescription Lens Services]\nBasic pair with clear, anti-reflective coating lenses.\nAll NYBK optical frames come with demo lenses, which is not appropriate for daily use. Demo lenses are plastics which serve its function as a decoration purpose only. We recommend non-prescription lenses who want to use the optical frame without prescription.\nAll non-prescription lenses are expendable. It would be difficult to accept return or exchange for any reason. NYBK Warranty does not cover damages from normal wear and tear, improper use or user negligence. Please consider carefully before you purchase our frame with the lens service.\nShipping lenses usually take 4-7 business days depending on the region you live in.","domain":"optical_engineering"}
{"url":"http://medilaser.in/servicetreatments/laser-eye-surgery/femto-lasik-laser-eye-surgery-in-pune/","date":"2019-05-22T22:48:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256980.46/warc/CC-MAIN-20190522223411-20190523005411-00162.warc.gz","language_score":0.9014835357666016,"token_count":555,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__8677979","lang":"en","text":"Femto LASIK: A Bladeless LASIK Procedure\nMedilaser offers a bladeless corrective eye care procedure known as Femto Lasik laser eye surgery in Pune. This is an all laser procedure which is very different from the traditional LASIK surgery that is done using a microkeratome with a metal blade in the flap cutting procedure.\nWho Needs Femto LASIK?\nFemto LASIK is a recent addition to the collection of ground-breaking laser eye surgery procedures that have been made possible by the advancements in technology. It is especially meant to help people who can’t see without the aid of their eyeglasses or contact lenses.\nYou also need Femto LASIK if you:\n- Suffer from myopia (short sightedness).\n- Suffer from hypermetropia/hyperopia (long sightedness).\n- Have presbyopia (age-related long sightedness).\nHow Does It Work?\nFemto LASIK laser eye surgery uses Excimer laser. The flap in the cornea is made by way of the Femtosecond, which is a novel technology in eye surgery. This has eliminated the risks and complications associated with the previous method that utilized blades and let the cornea with considerable trauma in some cases. Femto LASIK method gives your cornea a huge chance at attaining better stability.\nThe principle at work in Femto LASIK laser eye surgery is photo-disruption and we employ infra-red laser energy to create a small pattern under the surface of the cornea with overlapping spaces. The patterns have unmatched precision and the laser operates at lightning speed.\nWhat Are The Advantages Of Femto LASIK laser eye surgery?\n- Negligible risk associated with the flap creation.\n- A greater treatment surface with improved stability.\n- Minimal risk of infection and inflammation.\n- No need of any repeat surgery.\n- Features thinner flaps that ensure that there is no residual tissue-bed.\n- Improved predictability in terms of the resultant flap thickness.\n- Less exertion of pressure on the eye during surgery and excellent results.\nFemto LASIK eye surgery is a fast and safe procedure that gives incredible results all the time. We have done the same procedure for thousands of patients and the results speak for themselves.\nIf you are looking for Femto LASIK laser eye surgery in Pune for eye vision correction or spectacle removal, Call Us Today!!!\nTalk to us to get more information on your options and how we can help you get your eye sight back. Dial 8888884477.","domain":"optical_engineering"}
{"url":"https://turmansilmakliinik.ee/en/services/spectralis/","date":"2023-12-10T09:50:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00847.warc.gz","language_score":0.8878270387649536,"token_count":607,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__215545535","lang":"en","text":"Spectralis® is an image processing platform that can be used for diagnostic and treatment decision making. The device provides excellent contrast and high-resolution images of both the front and back of the eye.\nHEIDELBERG ENGINEERING SPECTRALIS enables us to examine the eye in record speed and many levels, discovering primary changes already at the micro level and imaging different cross-sections of the layers of the eye:\nSpectralis® gives us the opportunity to observe various layers of the eye without having to dilate the pupils of the patient, which is vital among the following patient groups:\nSpectralis® is equipped with ground breaking technology called Blue Laser. This the most effective technology for photographing the fundus, as all the energy is focused on one specific wavelength (so far, a wide spectrum of light has been used for photographing the fundus). As a result, the light flash disturbs the patient much less and does not have an unpleasant effect.\nprovides an overview of the corneal layers and anterior chamber. The width of the cornea and the measure of the anterior chamber angle provide relevant additional information in the diagnosis of glaucoma.\nis the latest module allowing us to examine blood vessels without injecting a contrast agent. It is particularly suitable for allergic patients to avoid possible complications of fluorescein angiography.\nThe new generation of eye fundus computed tomography has the advantage of faster imaging speed and sharper image quality, which highlights retinal layers and their changes. Pupil size will not be affected during this examination.\nis the new generation of glaucoma diagnostics. Measuring the width of the optic nerve disc, retinal nerve fibers, and the layer of ganglion cells is important in diagnosing glaucoma and monitoring the course of the disease.\nThe instrument is able to measure the exact same location as in the previous study in subsequent examinations and to perform a comparative analysis of the anatomical structures on the basis of the information obtained. In addition, patient data can be compared to a statistical average.\nuses three laser wavelengths in parallel to detect different structures at different depths in the retina. The method allows us to visualize changes that cannot be seen with normal fundus examination or images. The described module can be used in imaging when the patient has cataracts or nystagmus.\nindicates blue laser autofluorescence images. The non-invasive laser method for imaging of the eye fundus, reveals traces of retinal metabolic stress using lipofuscin as an indicator. The method highlights changes in retinal pigment-epithelial cells, such as age-related macular degeneration of the eye fundus and its hereditary changes.\nMulticolor, OCT, OCT Angiography, and BluePeak Spectralis modules provide a wider imaging range than older devices. Thus, they allow more peripheral areas of the fundus to be photographed and documented.","domain":"optical_engineering"}
{"url":"https://www.rayonic.de/en/coating-thickness-measurement","date":"2023-01-30T20:37:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499829.29/warc/CC-MAIN-20230130201044-20230130231044-00207.warc.gz","language_score":0.8908660411834717,"token_count":232,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__255143785","lang":"en","text":"The measurement of the thickness of metal coatings on steel strip utilizes the X-ray fluorescence (XRF) effect. By selecting the operating parameters of the X-ray source, the filters of the detectors and the measurement geometry different applications can be realised.\nThe energy of the fluorescence radiation is characteristic for the element that produced the radiation. The radiation produced in the steel strip has a different energy as the fluorescence radiation produced in the coating e.g. Zinc. Using the method of differential filters one or the other component of the radiation can be selected for measurement. The detector modules installed in the gauge-head detect the selected radiation component in the backward directions, e.g. the radiation from the metal coating.\nAn increase in the coating thickness also increases the intensity of the fluorescence radiation of the coating. The measurement of the intensity of the fluorescence radiation allows a precise determination of the coating thickness. For coatings of binary alloys such as Zn/Al or Zn/Ni the detector modules measure the fluorescence radiation from both elements separately and it is thus possible to determine the total coating thickness and the coating composition.","domain":"optical_engineering"}
{"url":"http://ltdjm.tech/products/new-smd-5733-lampada-led-lamp-e27-220v-3w-4w-5w-7w-8w-10w-spotlight-e14-bombillas-led-bulb-e27-spot-lamparas-led-light-christmas/","date":"2016-10-23T01:21:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-44/segments/1476988719136.58/warc/CC-MAIN-20161020183839-00133-ip-10-171-6-4.ec2.internal.warc.gz","language_score":0.6896255016326904,"token_count":294,"dump":"CC-MAIN-2016-44","global_id":"webtext-fineweb__CC-MAIN-2016-44__0__187965227","lang":"en","text":"New SMD 5733 Lampada LED Lamp E27 220V 3W 4W 5W 7W 8W 10W Spotlight E14 Bombillas LED Bulb E27 Spot Lamparas LED Light Christmas\nSpecifications: Type: LED Corn Light Chip Model: SMD 5733 Chip Quantity: 30LED / 42LED / 64LED / 80LED / 108LED / 136LED Wattage:3W / 4W / 5W / 7W / 8W / 10W Base Type: E27 / E14 / E12 Voltage: AC 220V – 240V Lumens: 500LM – 1200LM Length: About 75mm – 110mm Beam angle: 360 degree Lifespan:> 60,000hrs Warranty: 2 Year Color Temperature:2800 – 3500K(Warm White)6000K – 6500K(White) Features: * Using 2015 the latest high brightness SMD 5733 Chip. * Use aluminum plate, better than ordinary glass fiber cooling effect, greatly extend the lamp life. * LED Lamp, no VU and IR radiation. * Long Service life, high luminous efficiency. * Energy Saving, low heat and lower power consumption. * Great Reducing carbon emission, environmentally friendly. * With 360 ° beam angle, the bulb can give out light omnidirectional. * Does not contain lead, mercury and other pollution elements. * Suitable for halls, bars, office or home use.","domain":"optical_engineering"}
{"url":"https://deserttechfirearmsusa.com/desert-tech-srs-m2-blk-blk-chassis-srs-ch-mr-bb/","date":"2022-08-15T13:19:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572174.8/warc/CC-MAIN-20220815115129-20220815145129-00040.warc.gz","language_score":0.8806804418563843,"token_count":264,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__213143621","lang":"en","text":"Desert Tech’s chassis for the SRS-M2 delivers a feature rich, innovative system perfect for any long range shooting application. It features a lightweight and highly ergonomic design which accommodates shooting in virtually any position, and includes intuitively placed controls for ease of use. The SRS-M2 chassis is also highly customizable with a full-length 30 MOA top rail for the installation of high-power optics and more than enough room for clip-on night vision devices. The handguard also features M-LOK attachment points every 45 degrees to allow the attachment of lights, lasers, backup optics and other accessories. In addition, the SRS-M2 chassis comes equipped with an integral Area 419 Arcalock rail for fast and easy adjustment of accessories such as bipods, tripods, fore-grips and barricade stops.\nFeatures of the Desert Tech SRS-M2 Chassis:\n- Full-length 30 MOA top rail\n- Integral Area 419 Arcalock Rail\n- M-LOK handguard\n- HandednessRight Hand\n- Item ConditionNew\n- Product TypeRifle Parts","domain":"optical_engineering"}
{"url":"https://3riversoptical.com/educational-resources/","date":"2024-02-22T10:06:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00794.warc.gz","language_score":0.8760243058204651,"token_count":195,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__15232278","lang":"en","text":"Here at Three Rivers Optical, we believe in constant, continuing education. Our Account Managers are always available to provide new lens information and best practices to business owners and employees. We provide “lunch and learns” or dinner meetings for your convenience. In addition, below are some of the best offerings available to those in the eye care industry when it comes to learning more about the products, theories, and technologies that help shape it.\nUseful information and optical calculators are available. Abbe values, resultant prism, thickness, spectral transmittance material charts and much more.\nThis quick reference guide is invaluable to determine if lenses are within acceptable ANSI optical parameters.\nThe Progressive Lens Identifier is now only available online.\nCertification is an important part of the optical profession. Get Certified!\nThis is a comprehensive training tool to enhance understanding of all things optical.\nEverything you’ll need to prepare for the ABO exam.","domain":"optical_engineering"}
{"url":"https://www.metalsminingreview.com/news/what-s-new-in-the-laser-welding-sector-nwid-66.html","date":"2023-01-30T15:48:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499819.32/warc/CC-MAIN-20230130133622-20230130163622-00037.warc.gz","language_score":0.9230027198791504,"token_count":445,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__43151217","lang":"en","text":"The latest technology applied in laser welding is making it more efficient and also less time consuming.\nFREMONT, CA: Several trends characterize the usage of lasers in the automotive sector. Vehicles can be made safer and superior with the help of high-strength steels, weight-saving aluminum alloy, ground-breaking joining technologies, and also extraordinary mixtures of material. These days the process monitoring systems around the laser joining are crucial so that it can be made sure about both the stability of the procedure and the quality. Process monitoring can be separated into pre-, in- and post-monitoring. The WeldMaster platform merges all several process steps into one.\nThe blending of the tracking function of the WeldMaster, along with the ScanTracker scanning system and the laser power control, has made it possible to approach the new procedures. The ScanTracker is utilized to laterally oscillate the laser beam that is in focus and impose it with higher frequencies. Moreover, there are also possibilities of applying a synchronous laser power modulation resulting in accurate power distribution in the lateral direction.\nIn the application of fillet weld, there are chances of measuring the probable gap among the upper and lower sheet based on the laser triangulation before the starting of the actual laser procedure. Furthermore, the process parameters like lateral position, power modulation of the laser beam, or laser power can be adjusted according to it. Therefore, leading to a more controlled and robust bridge gaping.\nOne of the vital indicators for the achieved quality is seam geometry. The defined geometric values like collapsed seams, seam bending, or seam width can be directly measured in-situ, followed by the processing and evaluation with the assistance of image processing. The evaluation is also based on grey level analysis and laser triangulation. Therefore, the information about the quality of the component is obtainable instantly, and it becomes easy to reject the unnecessary part and start rework.\nThe usage of WeldMaster and ScanTracker for inspecting the aluminum products have made it possible to decrease the processing time for welding. The total investment has also reduced because of the elimination of separate quality monitoring stations.","domain":"optical_engineering"}
{"url":"http://3pete.o-f.com/SafetyInfo/PPE/ppe_eye.html","date":"2018-12-12T22:59:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824180.12/warc/CC-MAIN-20181212225044-20181213010544-00129.warc.gz","language_score":0.9302232265472412,"token_count":402,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__107599708","lang":"en","text":"Choosing & Using Eye Protection\nSafety Glasses & Goggles\nNo matter where we work, flying particles, dusts, fumes, vapors or harmful rays are apt to expose us to potential eye injury. Fortunately, we can protect against these hazards by using the appropriate protective eyewear for our jobs and by following our companies' established safety guidelines. The following is a guide to the most common types of protective eyewear and the specific hazards they can guard against.\nStandard safety glasses look very much like normal glasses, but are designed to protect you against flying particles. Safety glasses have lenses that are impact resistant and frames that are far stronger than regular eyeglasses. Safety glasses must meet the standards of the American National Standards Institute (ANSI). (Safety glasses are also available in prescription form for those persons who need corrective lenses.) Standard safety glasses can be equipped with side shields, cups, or tinted lenses to offer additional protection.\nLike standard safety glasses, goggles are impact resistant and are available in tinted lenses. Goggles provide a secure shield around the entire eye area to protect against hazards coming from many directions. Safety goggles may have regular or indirect ventilation. (Goggles with indirect ventilation may be required if you are exposed to splash hazards.)\nShields and Helmets\nFace shields and helmets are not in themselves protective eyewear. But, they are frequently used in conjunction with eye protectors. Full-face shields are often used when you are exposed to chemicals or heat or glare hazards. Helmets are used when welding or working with molten materials.\nUsing Protective Eyewear\nYou can guard against eye injury by making sure that you are wearing the appropriate protective eyewear for the particular eye hazards you face. It's important to remember that regular glasses alone do not offer protection from eye hazards. Follow your company's established safety procedures, and never hesitate to ask your supervisor if you have any questions about what you can do to protect your sight for life.","domain":"optical_engineering"}
{"url":"https://stephenbergmusic.com/shopping-for-rifle-scope-long-eye-relief/","date":"2022-01-24T14:35:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304570.90/warc/CC-MAIN-20220124124654-20220124154654-00612.warc.gz","language_score":0.9809228181838989,"token_count":754,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__175268180","lang":"en","text":"One of the main features that you have to check while buying a rifle scope is its long eye relief. The rifle scope long eye relief is the distance between the base of the scope and the eyepieces of the rifle. This is the distance that your rifle scope has to work well in order to provide you with clear shots. There are many things that influence the level of long eye relief of the rifle scope. Among these factors are the type of bullet that you will use, the wind conditions during hunting, and the quality of the rifle that you will be using.\nAs the rifle moves through the air, the rifle scope would follow the wind. If the wind is blowing from the northwest direction, the rifle scope long eye relief will be more than that of the rifle being used by people who have a wind coming from the southwest. This is because the wind from the northwest will cause the rifle scope to be pointed toward the northwest. Similarly, those who have wind blowing from the southeast will have much longer eye relief than people with winds coming from the southeast.\nAs you look into the rifle scope long eye relief of a rifle, the first thing that you should consider is whether you will be using a pistol or a rifle as a primary rifle. If you are going to use a pistol as your primary rifle, you will have less long eye relief than if you were going to use the rifle scope for hunting. This is because the pistol will not be moving at high speeds as the rifle does. If you are going to use the rifle scope for hunting, you will have much longer eye relief than if you were using the pistol.\nYou should also consider the type of rifle scope that you are using. As mentioned above, you will have much more long eye relief with a scope that is scoped than you would with one that is not. In addition, you will need to think about the elevation settings that are available on the scope of the rifle that you are interested in. There are some that will allow you to adjust the elevation up and down but there are some that are fixed and cannot be adjusted. Remember that when you are hunting and if you are using a rifle scope long eye relief is very important because you will be looking through much more magnification.\nThe next thing that you will want to take into consideration when you are shopping for a rifle scope long eye relief is how easy it is to install. You will want to make sure that it is easy for you to install the rifle scope and also that it is able to adjust easily so that you can get the best possible shot. In addition, you will want to remember that you will want to make sure that the rifle scope that you purchase is bright enough so that you can see through the scope at all times. When you are shopping for sks rifle type of rifle scope, the brightness will come into play because you will not want to have to use a flashlight at night time. This can be especially problematic if you are hunting during the night time because you will need to have a good rifle scope to help you with your hunt.\nThe last thing that you will want to consider when you are shopping for a rifle scope long eye relief is the size. Remember that this is something that you will be carrying around with you at all times so you want to make sure that it is comfortable for you to carry and also that it is not too big or small for you to handle. In addition, you will want to make sure that the rifle scope that you are shopping for is effective for the type of hunting that you plan on doing. If you are looking for a general rifle scope then you will likely be able to find a good size that will work for what you are looking for.","domain":"optical_engineering"}
{"url":"http://jaredcsfl047.qowap.com/13081874/2-benefits-you-do-not-realize-in-relation-to-lasik-eye-surgical-operation","date":"2019-07-24T02:29:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195530250.98/warc/CC-MAIN-20190724020454-20190724042454-00230.warc.gz","language_score":0.9546709060668945,"token_count":867,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__212409617","lang":"en","text":"The eye can be examined with relative ease regarding both its function and its structure. A functional examination consists of the capability to move in the orbit and the response of the student to light and lodging.\nThe function of the eye may be evaluated in a number of methods. The client may be asked to recognize illuminated letter or objects of differing sizes on what is called the Snellen chart.\nOn the other hand, the examination of the structural part of the eye might be made in a number of methods. Stress within the eyeball is determined by a \"tonometer.\" In certain illness, especially in glaucoma, the stress in the eyeball is increased significantly.\nHowever, it should be well remembered that a patient with an eye problem might have other problems as well. Often other physical conditions are main and impact the eye as a consequence. The look of the eye can notify the patient and the doctor to difficulties in some disturbances of other parts of the body even prior to other signs provide themselves.\nConsequently, one's dependence on sight is emphasized when one faces a possible or momentary irreversible loss of this crucial sense. When restorative procedures are looked for, specific kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some people are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to encourage decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another form of vision correction. The only distinction is that with this type of surgical treatment, one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" try this In a series of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people need to know. Probably, the primary reason that this type of eye surgery has actually become well accepted is since the majority of its cases had actually achieved success.\nNevertheless, in spite of its success, there are still additional hints some disadvantages. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nSince LASIK eye surgery includes the operation of the retina, which is one of the most delicate parts of the eye, many people state that the operation can be extremely dangerous.\nTo puts it simply, a simple error might practically trigger an person's life time blindness. It is important to consider many factors prior to choosing whether LASIK eye surgery is the ideal corrective step one has to undergo.\n2. It is not a perfect treatment\nLASIK eye surgery may fix your vision but it does not necessarily Going Here mean that it can provide you a twenty-twenty. Even if statistical reports show that 70% of the clients may have 20/20 vision, this does not necessarily mean they have ideal vision too.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgery the way the majority of people view it\nOn the other hand, the evaluation of the structural part of the eye might be made in several methods. It needs to be well remembered that a patient with an eye issue might have other problems. Typically other physical conditions are main and affect the eye as a effect. The appearance of the eye can inform the patient and the physician to troubles in some disturbances of other parts of the body even before other symptoms provide themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://evincodesign.com/best-zoom-eyepiece-telescope/","date":"2022-05-26T08:44:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604495.84/warc/CC-MAIN-20220526065603-20220526095603-00472.warc.gz","language_score":0.9045082330703735,"token_count":3390,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__152586360","lang":"en","text":"As an Amazon Associate I earn from qualifying purchases.\nChoosing the Best Zoom Eyepiece Telescope can be difficult if you don’t buy it frequently. But don’t worry – we have compiled a list of the Best Zoom Eyepiece Telescope for you. Check out our list and pick the ones you like best.\nWe’ve created this list of the Best Zoom Eyepiece Telescope so that you can easily choose the right one.\nBest Zoom Eyepiece Telescope: Our Top Picks\nLast update on 2022-03-12 / Affiliate links / Images from Amazon Product Advertising API\n10 Best Zoom Eyepiece Telescope Reviews of 2022\nBefore making a purchase decision, we strongly recommend reading through the features of each Zoom Eyepiece Telescope and picking one that will work best for you.\n- Zoom from low to high power in an instant with this versatile eyepiece\n- Compatible with any telescope that accepts 1.25” eyepieces\n- This fully multi-coated Premium eyepiece zooms to any focal length between 8 mm and 24 mm - pick the best magnification for your subject\n- SV135 7 mm to 21mm adjustable focal length;SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces ;obtain higher magnification with short focal length;It could bring you a better observation experience in a comfortable situation with high-contrast imaging\n- 18mm - 16.3mm comfortable eye relief; especially for eyeglass wearers ;designed primarily for viewing landscapes and astronomical observations of lunar surfaces; planets; nebulae; clusters; and diffuse nebulae\n- Fully multi-coated Premium eyepiece;The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces; 6-Element 4-Group premium optical design for superior optical performance\n- Standard 1.25\" eyepiece;Equipped with a precision-made standard 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch eyepieces; Rubber eye guard for comfortable viewing and blocking stray light\n- A cost-effective eyepiece;Full metal body; fine appearance; 40 degree - 57 degree wide angle field of view; high brightness observation is very comfortable ;you will obtain more details that you have never seen before\n- SV170 Zoom Eyepiece is a better choice-A simple twist of the zoom eyepiece housing changes the focal length from 30mm to 10mm; providing a variety of viewing magnification powers\n- Superior performance;5 Elements 3 groups made of high index glass deliver sharp; high contrast vistas; 5 element design delivers sharp images with good color correction and contrast\n- 33°-51°Apparent Field of View; SV170 Zoom Eyepiece allows you to see different wide field of view under the same viewing conditions\n- Metal Twist-Up eyecups; SV170 Zoom Eyepiece's eyecup is made of metal; durable and easy to shape; The eyecup is covered with a rubber shell; which makes you feel comfortable and helps protect your eyes\n- All lens edges are blackened; Blackened lens edges; anti-reflection threads for maximum contrast\n- SV191 zoom eyepiece can get a very wide view; super wide angle eyepiece; improve the observation experience\n- No need to change the eyepiece frequently; zoom eyepiece; 9mm-27mm focal length; a variety of viewing magnification powers; easy to adjust and focus; handy for you to use; save your time to have a better observation experience\n- Use it for a very long time; well made eyepiece; 7-Elements / 4-groups; fully multi-coated coatings; made of high index glass; black eyepiece tube; well machined\n- Stable eyepiece; sleek black barrel with safety undercut; to prevent the eyepiece from slipping out of the focuser or diagonal; no need to worry about the slip off of the eyepiece\n- Have a very clear image; blackened lens edges; anti-reflection threads; for maximum contrast; the image you get will be bright and sharp\n- There are a number of things that you will thoroughly enjoy as an owner of this \"Astromania 1.25\" 8-24mm Zoom Eyepiece\" which is specifically designed for both visual and photographic use.\n- Equipped with a generous 40° to 60° field of view and a non-click stop adjustment mechanism, this eyepiece allows smooth transitioning between focal lengths, ensuring that the observer can find the perfect combination of field of view and magnification that the target object and seeing conditions will allow.\n- Eyeglass wearers will also find that this eyepiece’s long 15mm to 18mm eye relief combined with a flip down rubber eye guard ensures that even they can easily take advantage of the many benefits provided by this eyepiece’s high quality multi-coated optics and zoom capability.\n- Continuous focal length zoom of 8mm to 24 mm for a wide range of magnification without the need to switch eyepieces.Parfocal over entire range, so no need to refocus as focal length is changed.\n- The eyepiece is threaded at the top for a T-adapter (standard M42x0.75 male thread) and at the bottom for 1.25” filters (standard M28.5x0.6 female thread), enabling owners of any T-thread mountable camera to photograph the planets, the moon and high powered terrestrial targets at broad range of focal lengths!\n- One eyepiece for multiple uses; SV191 7.2-21.6mm zoom eyepiece allows you to change magnification power without swapping out eyepieces\n- 1.25 inches standard eyepiece; not only for astronomical telescopes; but also for spotting scope\n- 7-Elements 4-Groups lens structure; 7-Elements 4-groups made of high index glass deliver sharp; high contrast vistas\n- M28.5*0.6 filter threads; base of SV191 zoom lens has a threaded adapter which allows standard 1.25in filter\n- 18-20mm eye relief; twist up rubber eyecup and 18-20mm long eye relief provides comfortable long term viewing for people with or without glasses\n- The Orion E-Series Zoom eyepiece allows you to change magnification power without swapping out eyepieces\n- A simple twist of the zoom eyepiece housing changes the focal length from 21mm to 7mm, providing a variety of viewing magnification powers\n- The eyepiece consists of six lens elements, which are fully multi-coated with anti-reflection coatings for bright and clear views, rich in contrast\n- Exceptionally long 18mm-16.3mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses.\n- The 1.25\" barrel is threaded for use with like-sized Orion eyepiece filters.\n- Hyperion Universal Zoom Mark IV: fourth generation of Baader-Zoom, 68° Widefield eyepiece with five magnifications - focal lengths 8, 12, 16, 20 and 24mm clearly defined with \"smoothed-out\" improved Clickstop Action (a must for effortless binoviewing)\n- Includes 2\" and 1¼\" barrel, usable for all telescopes with 1.25\" or 2\" focusers, and some spotting scopes with 1 3/8\" thread (Celestron / Sky-Watcher and others)\n- High Quality Phantom Coating Group Multicoatings! For faintest objects, maximum contrast and total freedom from reflections\n- Large adjustable rubber eyecup, smaller straight rubber eyecup and winged, foldable eyecup included, to fit over M43 photo/video-thread\n- M43-Video-Photo thread for afocal and classical projection photography, permits optional adaptation of practically any camera with optional accessories\n- Versatile 9mm-24mm Zoom for Low Power and High Power Viewing;9mm-24mm zoom eyepiece Perfect focal length range for beginner intermediate astronomers with ease of access to different focal lengths\n- Telescope Eyepiece with 17mm - 22mm huge eye relief; suitable for wearing glasses ;for casual sky viewing,star clusters Nebula and galaxies jupiter moon;21mm large eyepiece diameter Provide a comfortable viewing experience\n- Bright and sharp image;Fully multi-coated Premium eyepiece;The true fully multi-coated Premium eyepiece support highly achromatic with good color correction and contrast; 7 Element 4 Group premium optical design for superior optical performance\n- Standard 1.25\" eyepiece; 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch eyepieces;Threaded for 1.25inch astronomical filters;Comes with sturdy plastic case and rubber cap-proect the eyepiece from dust and moisture\n- Full metal body;well built;smooth zoom; 40 degree - 60 degree wide angle field of view; blackened lens edges; anti-reflection threads;The production and assembly of all our optical products are completed in a dust-free workshop;\n- SV171 Super-wide Angle 1.25\" 8mm-24mm zoom eyepiece;SV171 zoom eyepiece allows you to change magnification power without swapping out eyepieces\n- FMC glass lens; Fully multi-coated glasses for excellent image contrast and light transmission; Sharp optimal performance with low chromatic aberration\n- Comfortable long eye relief design; Exceptionally long 18mm-19.5mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses\n- Unique humanized design;Sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal\n- Standard 1.25\" fitting diameter compatible with any astronomical telescope with 1.25\" focuser;The bottom M28.5 x 0.6 thread can also be used with standard 1.25\" Filter\nLast update on 2022-03-12 / Affiliate links / Images from Amazon Product Advertising API\nBuying Guide of Zoom Eyepiece Telescope\nWhat are the key factors you look for when purchasing a high-quality Zoom Eyepiece Telescope? We understand that it can be challenging to decide which one is right for your needs when there are so many options available. However, we have done all of this research and put together lists that should help narrow down your choices. You must also have a list of questions on your mind. Although Consume with Care has done everything we can to help you, it is still imperative for you to do your own research. You need to check out any relevant Zoom Eyepiece Telescopes before buying them, so they are exactly what you need!\n- Does it make sense for you to invest in the Best Zoom Eyepiece Telescope?\n- Which brand offers the best Zoom Eyepiece Telescope in the current market for the money?\n- What are the advantages to buying Best Zoom Eyepiece Telescopes?\n- Which factors should be considered when selecting the best products?\nThere are undoubtedly many questions you still have about the best Zoom Eyepiece Telescope. The best way to find out the answers is to do your research and talk with someone who knows what they’re talking about. No one knows more about this topic than experts! Sources of information for you could include buying guides, word-of-mouth, rating websites, testimonials from previous customers who have purchased these products; and online forums devoted solely to discussing topics related to Best Zoom Eyepiece Telescope.\nWhen making a decision, you should only trust the most credible and trustworthy sources. Our library provides objective, accurate information about the top Zoom Eyepiece Telescopes. We use trending technologies to create our guides, so you can be sure of what you’re getting, regardless of whether it’s a bestseller or not!\nOur list is based on objective data from AI and big data, as well as custom algorithms that rank the top 10 options for each category. The list changes frequently as technology advances and new proofreading methods are developed.\nWe consider a variety of factors when building our list, including:\nWe have data that identifies what content users want and need.\nWe use user behavior analytics to understand how users interact with our platforms so that we can make smarter design decisions for our site or app in the future.\nWe also consider the following factors: in addition to these factors.\nWhen looking to buy a Zoom Eyepiece Telescope, be sure to compare prices between sellers to get the best deal. Amazon offers great prices with their combo listings – browse through other products to find the best one for you.\n2. Brand Value\nWhen purchasing a high-quality Zoom Eyepiece Telescope, it is important to consider more than the price. It is also important to look at the brand name to see if it is well-known and established. Well-known brands for this type of product tend to be more expensive than lesser-known brands, but there are other factors to consider, such as durability and efficiency.\nBefore making a purchase, you should ask yourself if the purchase is really necessary. If it is not for everyday use, then you can save more money by choosing an alternate option that will suit your budget better.\nConsider whether or how often an item would be useful in determining what kind of price range it would fall into. This is so as not to be lured into buying products outside our comfort zone just because they appear cheaper.\n4. Product Reliability\nIt is important to ask yourself if a big purchase will fulfill your long-term needs before making it. Whether or not the products will work for you depends on their durability and how long they will last.\n5. Pros and Cons of the product\nIf you are looking for a product that has all the features you need, be sure to read other reviews and ask people who have used the product before. This will help you understand what they think of it.\nIf you have any of the following conditions, this product is for you:\nYou need a durable, high-quality item that will last long enough to be used every day.\nYou need all the features you have listed on your list of desired features to live the life you want. However, you need it at an affordable price point, so you don’t have to break your bank account or break your spirituality!\n6. Product Value\nThe Most Valued Zoom Eyepiece Telescope allows you to easily evaluate and compare the value you receive from each product.\nIt is important to be aware of the quality and durability before making any purchases. It is also important to consider how long your purchase or replacement parts will last, as this will affect whether it was worth the purchase in the first place.\nThe best way to protect yourself when buying a product online is to get a warranty from the seller. This will protect you if something goes wrong with the product or if you need to return it. You can also check to see if the seller offers returns on wrong orders or faulty products. This will give you peace of mind knowing that you are protected no matter what happens.\n9. Customer Reviews\nIf you’re about to make a big purchase, reading through customer feedback may be the last thing on your mind. However, this is an absolutely necessary step for us to know not only what we are getting into before making our purchases but also how well they will fulfill their promises. They will live up to our expectations.\nEvinco Design always strives to be the most up-to-date source for information on Zoom Eyepiece Telescope. We research articles like articles about Zoom Eyepiece Telescope and use online resources to ensure that our information is accurate. If you find something in our content that doesn’t seem accurate or applicable, please let us know so that we can correct it. Our goal is to provide you with reliable information from a trusted source.","domain":"optical_engineering"}
{"url":"https://www.pngcepa.com/the-top-scopes-for-a-300-blackout-rifle-a-comprehensive-review/","date":"2024-02-23T06:02:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474361.75/warc/CC-MAIN-20240223053503-20240223083503-00888.warc.gz","language_score":0.8964773416519165,"token_count":870,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__3940355","lang":"en","text":"The Top Scopes for a 300 Blackout Rifle: A Comprehensive Review\nFinding the best scope for a 300 Blackout rifle is crucial for achieving optimal accuracy and performance. With the right scope, you can enhance your shooting experience, whether you are engaging in long-range shooting, hunting, or tactical operations. In this article, we will discuss the top-rated scopes for the 300 Blackout, their features, and their suitability for various applications. We will also provide answers to commonly asked questions to help you make an informed purchasing decision.\n1. Trijicon VCOG 1-6×24: Best 300 Blackout Optic and Tactical Scope\nThe Trijicon VCOG 1-6×24 is widely regarded as the best optic and tactical scope for the 300 Blackout. This rugged and reliable scope features a first focal plane reticle, allowing shooters to range and engage targets accurately at any magnification. The illuminated reticle provides quick target acquisition in low-light conditions, and its BDC (Bullet Drop Compensator) allows for precise holdovers out to extended ranges.\n2. UTG 3-12×44: Best Scope for the Budget\nFor those on a budget, the UTG 3-12×44 offers excellent value for money. Despite its affordable price point, this scope boasts impressive features such as an illuminated mil-dot reticle, parallax adjustment, and superior light transmission. It is also shockproof, fogproof, and waterproof, making it durable and suitable for various environments.\n3. Vortex Crossfire II 4-16×50: Best Scope for Mid-to-Long Range and Hunting\nThe Vortex Crossfire II 4-16×50 is a versatile scope that excels in mid-to-long-range shooting and hunting applications. With its adjustable magnification range and large objective lens, it provides clear and crisp images even in low-light conditions. The Dead-Hold BDC reticle ensures accurate holdovers, especially when shooting at different distances.\n4. Vortex Strike Eagle 1-6×24: Best Scope for Hog Hunting\nIf you are specifically looking for a scope for hog hunting, the Vortex Strike Eagle 1-6×24 is an excellent choice. Its low magnification range allows for quick target acquisition and improved situational awareness, making it ideal for close-quarters shooting. Additionally, the illuminated reticle aids in rapid target engagement, even in low-light situations.\n5. Primary Arms 1-6x24mm SFP Gen III: Best Scope for 300 Blackout Subsonic\nThe Primary Arms 1-6x24mm SFP Gen III is specifically designed for 300 Blackout subsonic ammunition. Its illuminated ACSS reticle offers precise bullet drop compensation and range estimation. This scope performs exceptionally well with subsonic loads, making it perfect for both hunting and tactical operations.\n6. Steiner P4Xi 1-4x24mm: Most Versatile Scope for 300 Blackout\nThe Steiner P4Xi 1-4x24mm is a compact and versatile scope that excels in a wide range of shooting applications. Its illuminated reticle allows for quick and accurate target acquisition, while the rugged construction ensures durability and reliability. Whether you are engaging in close-quarters combat or shooting at medium ranges, this scope delivers exceptional performance.\n7. Nikon P-Tactical 300BLK 2-7×32: Best Scope for BDC Supersub\nThe Nikon P-Tactical 300BLK 2-7×32 is specifically designed for the 300 Blackout cartridge, with a bullet drop compensating reticle calibrated for supersubsonic ammunition. It offers excellent light transmission, making it a reliable choice for low-light shooting conditions. The compact design and affordable price make it an attractive option for budget-conscious shooters.\nChoosing the best scope for a 300 Blackout rifle is essential for achieving optimal performance and accuracy. The scopes mentioned above cater to different shooting needs, whether it be long-range shooting, hunting, or tactical operations. Consider factors such as magnification range, reticle type, durability, and budget when selecting a scope. By doing so, you can make an informed decision to enhance your shooting experience and achieve satisfying results with your 300 Blackout rifle.","domain":"optical_engineering"}
{"url":"https://www.red-current.com/flir-used-cameras/used-flir-e60","date":"2022-11-26T18:51:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446708046.99/warc/CC-MAIN-20221126180719-20221126210719-00488.warc.gz","language_score":0.8996129035949707,"token_count":702,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__236598158","lang":"en","text":"FLIR E60 Thermal Imaging Camera\nFLIR Part Number: 49001-0602\nThe FLIR E60 is an old favourite of electricians, plumbers and HVAC specialists.\nPrice: £2,549.00 exc VATBuy Now\n- Poduct Information\n- Price Options\n- Camera Features\n- Box contents\n- History and condition\n- Downloads and Software\n- Expert Advice\n- Other Purchasing Options\nThe FLIR E60 is an old favourite of electricians, plumbers, and HVAC specialists.\nWith a resolution of 320 x 240 pixels the FLIR E60 creates thermal images with excellent depth and clarity.\nThis is an extremely versatile camera suitable to many applications within electrical, mechanical and building applications.Buy Now\nUsed FLIR E60:\nPrice: £2,549.00 exc VAT\nService Package: £600.00 exc VAT\nPackage includes a full service and calibration completed by FLIR.\n|320 x 240 pixels||–20°C to +650°C||Standard Angle||< 0.05°C|\n- FLIR E60 Thermal Imaging Camera\n- Hard transport case\n- Battery (3 ea.)\n- Battery charger dock\n- Power supply\n- USB cable\nThe camera was manufactured in June 2016. Throughout this time the camera and its accessories have been well maintained and kept in excellent condition to ensure perfect operational performance.\nThis FLIR E60 comes from Red Current's own hire stock and has been used successfully to solve many problems for our clients.\nVisual condition photos of this camera are available upon request as well as example thermal images.Buy Now\nDownloads:Download the FLIR E60 Datasheet\nThermal Studio is FLIR's software designed for easy viewing and editing of radiometric images, report generation and measurements. There is a free option with all the basic functions.Buy Now\nAll used cameras are supplied with a 7-day warranty*, during which time the camera can be returned for a full refund if the equipment is found to be faulty.\nWhere equipment is still within the remainder of the manufacturer’s warranty period, applicable defects will be repaired directly by the manufacturer.\nFor added peace of mind, we also offer a 1-Year Warranty/Service Package provided by FLIR. See PRICE OPTIONS tab for further details on costs.\n*Equipment and accessories must be returned fully and in the same condition as they were despatched.Buy Now\nAdvice from our Thermal Surveyors\nIf you are considering purchasing a thermal imaging camera, it may be within your interests to contact one of the experts at Red Current. This will allow you to fully understand the capabilities of both the camera and its accompanying software.\nThis thermal imaging camera is also available for hire. However, possessing your own imager may prove more beneficial in the long run, as it means you’ll have immediate access to specialist equipment without incurring a cost each time.\nDon’t forget to take a look at our full range of infrared imaging cameras - both new and used - in order to make an informed decision about whether this thermal camera is the best option for your needs.Buy Now","domain":"optical_engineering"}
{"url":"https://www.haticitechs.com/aperture-in-photography-explained/","date":"2019-04-24T00:00:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578616424.69/warc/CC-MAIN-20190423234808-20190424020808-00158.warc.gz","language_score":0.9336431622505188,"token_count":1166,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__29910704","lang":"en","text":"Apertures are optic devices that limit the cross-section of radiation beams . Depending on the effect and design, covers are called different.\nDesignation accordance with the action\nDepending on the effect, three pure forms of diaphragms can be distinguished from one another:\nA pure aperture diaphragm is uniformly attached to the aperture of the optical device. Does not affect the size of the image. For this purpose, it should be considered that the same radiation flow is relative to the radiant power of the object.\nIn devices having a single image component (eg, a lens or a primary mirror), the aperture diaphragm is generally disposed close to it or is made by the lens or the edge of the mirror. In the eye, the iris acts as an opening stop. For more complex devices, such as camera lenses, the aperture diaphragm can also be in the object, in the image or between the image elements.\nThe images of the aperture diaphragm are called the entrance pupil in the object and the exit pupil in the image side.\nIn practice, almost any limitation of a beam through an aperture causes a beam passing through the cross section of the aperture at a different angle to be cut in a different ratio. This usually leads to a darkening of the image near the edge, which goes beyond the law Cos 4. This phenomenon is called vignetting.\nA pure field of view limits the image without affecting the brightness of the image.\nIt is located in the image plane (z. B. sensor chip of a digital camera ), the object plane (z. B. slide mounts in the slide projector) or in an intermediate image plane (z. B. in the microscope ). In practice, the field stop is usually not exactly at the object or image, so that the edge is never sharply defined.\nThe images of the visual field diaphragm are called the entrance hatch (on the object side) and the exit hatch (on the image side).\nA field stop in an illumination beam path is also called field stop . It limits the illuminated area on the observed object. In a classic Köhler illumination with the microscope , it is usually designed as an adjustable iris diaphragm . In confocal technology , the field diaphragm is so small that the luminous field is only determined by the diffraction-related resolution limit of the microscope. In a Kreutzblende comes an aperture with crescent-shaped opening used.\nA pure lens hood is located outside the beam path and affects neither the brightness of the image nor the size of the image section.\nPhotographic iris is often made as in an iris diaphragm. A lens mount acts as a fixed aperture diaphragm. But as it often reflects scattered light, a fixed opening ring is placed before or after.\nWhen the magnification of negatives (photographs made on film or plate) is made of a metal plate, it is placed on a metal plate. Therefore, the paper is pressed to a large extent on the cassette (good for sharpness and without distortion), the image is considerably limited and created with a white margin not exposed on the paper. Of the larger glass negatives, contact copies are often made in a fixed-frame wooden cassette.\nThe body of the camera already generates its film guide, usually made of aluminum or plastic, which molds a rectangular boundary of the exposed surface of the film. The special characteristics of the contour (dimensions, rounding of corners, shadow of a filament) offer researchers clues about the type of camera used or even the copy of the camera. The frames of the slides form an optical frame around the film of the slide, which is somewhat smaller than the standard format (eg, small image 24 × 36 mm).\nOpenings with a striking outline. Classically, the perspective of the keyhole with a circular opening and an attached trapezoid, which extends slightly downward, is the view not observed through a door. 4 squares at a small distance through a prison window with bars, many squares through a ventilation grid.\nSmall hatches, often yellow in the back of a movie. Stock Photography in the back of a movie. Some miniature cameras allow this to be read on the label of the film cartridge.\nSlot diaphragms generally limit the path of the beam only in one direction as a field diaphragm. In spectrometers and related optical devices, they are called optical gaps, they usually have a width (order of magnitude of 1 mm when it comes to the visible spectral range) and their height (order of magnitude of 20 mm) adjustable.\nThey serve on the input side as secondary light sources in a well defined and usable way, on the output side, for example, of monochromators as selection agents for certain wavelengths (ranges) and rotate as secondary light sources. The width of the gap is often negligible.\nIn ophthalmology, a non-adjustable orifice (called a stenotic gap) is used for the differential diagnosis of visual acuity reduction as an opening stop. The ENT specialist sees through a thin mirror panel of illumination in the neck, nose or ear.\nYou may also want to read below articles\n- What is the limit of manipulation in photography?\n- This is how a Fujifilm X-T2 and a Fujinon MK 18-55 mm lens are made step by step\n- 12 Tips for Making the Most of Your Action Camera\n- Which GoPro should I choose?\n- A family is looking for a photographer to accompany them to travel the world with paid expenses and a floor of 90,000 euros","domain":"optical_engineering"}
{"url":"https://www.elettrorava.com/technologies/metalorganic-cvd/","date":"2024-04-16T16:58:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00228.warc.gz","language_score":0.7373384833335876,"token_count":135,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__170631446","lang":"en","text":"MOCVD is commonly used in the production of laser diodes, LEDs, and semiconductors for\nadvanced optoelectronics, high power and highspeed electronics, enabling mass production of semiconductor heterostructures via bandgap engineering. Furthermore, MOCVD can be utilized to precisely fabricate 0D, 1D, and 2D nanomaterials.\nOxides, Nitrides, Carbides, Semiconductors, Carbon Based Materials, Organics\nFull catalog download\nClick to download our Thin Film Equipment Catalog","domain":"optical_engineering"}
{"url":"http://www.gadgetsinformer.com/2015/09/22/canon-develops-a-new-sensor-that-can-read-material-on-an-airplane-news-229/","date":"2018-12-14T22:03:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826354.54/warc/CC-MAIN-20181214210553-20181214232553-00265.warc.gz","language_score":0.9364867806434631,"token_count":482,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__143099679","lang":"en","text":"Japanese camera manufacturer giant Canon has declared that it has developed a new sensor. The new sensor has 250-megapixel 19,580 x 12,600 APS-H CMOS sensor as according to The Verge, that Canon claims it could be a world record for having such a great resolution with such a little size.\nThe company told that its new sensor is capable of identifying the written material on the side of an Aeroplane from 18 kilometer away, i.e., 11.1 miles. APS-H is a sensor size larger than APS-C however smaller than full-frame and is especially used on Canon’s gift EOS-1D line of DSLRs.\nThe Canon’s new sensor includes a quick signal readout speed of 1.25 billion pixels a second. Canon says it’s smart noise performance despite the component count. Also, the sensor are also can be used to capture unbelievably high-resolution video, concerning 30 times sharper than 4K at 5 frames per second.\nThe new sensor encompasses a fast signal readout speed of 1.25 billion pixels per second. Canon claims that the sensor has sensible noise performance despite of the massive component count. Videos are often captured at implausibly high resolution exploitation the device and therefore the videos are going to be 30 times slicker than 4K at 5 frames per second.\nCanon says the new sensor technology won't be used for industries\nSensor Technology, Crime Interference, Ultra High Resolution\nCanon says the new sensor technology won’t be used for industrial functions as of now and can be place to use as crime interference tools, specialized police investigation, ultra-high-resolution mensuration instruments, field of visual expression and alternative industrial instrumentality.\nBut the device wouldn’t realize an area within the smartphones for now, however the corporate claims that the device are often accommodated during a comparatively little camera body.\nCanon’s accomplishment of using the sensor along with the prototype camera, to read the written material on an airplane over 11 miles away is quite awesome. However, it’s little difficult to inform what proportion of that magic is that the sensor, because the company has not discovered any details regarding the camera or lens used. The technology remains within the development part however it would enter mainstream photography in the next few years.","domain":"optical_engineering"}
{"url":"http://www.incospec.com.au/coming-soon-new-positector-rtr-3d/","date":"2020-04-04T18:44:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370524604.46/warc/CC-MAIN-20200404165658-20200404195658-00421.warc.gz","language_score":0.8260517120361328,"token_count":208,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__101291811","lang":"en","text":"Coming soon later this month is the NEW PosiTector RTR 3D which captures high-resoluton 3D surface imagery and common 2D/3D parameters at a fraction of the cost of drag stylus or confocal microscope instruments.\nThis powerful new probe incorporates and improves upon the technology in the PosiTector RTR P and continues to provide profile height and peak count parameters in addition to 2D/3D profile parameters.\nThe patented PosiTector RTR 3D is ideal for measuring the surface profile of flat, curved or irregular surfaces in the field or laboratory. Simply create a replica by burnishing tape onto the surface and insert it into the instrument. In seconds, the handheld PosiTector RTR 3D displays imagery and measures common 2D and 3D profile parameters such as Ra, Rz, Sq and Spd, traceable to a national laboratory.\nKeep your eyes peeled for this exciting new release and make sure you follow us on LinkedIn to stay updated.","domain":"optical_engineering"}
{"url":"http://ajpn.com/blog/?tag=lens","date":"2013-06-18T04:39:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706933615/warc/CC-MAIN-20130516122213-00071-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9536761045455933,"token_count":1518,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__115213218","lang":"en","text":"Cicero said, ‘Ut imago est animi voltus sic indices oculi’, which translated means, ‘the face is a picture of the mind, as the eyes are its interpreter’. Boil this down to its essence and you get, ‘the eyes are the windows of the soul’.\nPhilosophical or physical, looking in or peering out, it’s all relative.\nThe three key elements are eyes, window and soul. In its best sense, the photographer provides the soul, the camera its eye and the lens its window. Your eye may function perfectly, but if the window it’s looking through is dirty or distorted you’re view is going to be adversely effected and your soul is going to be inaccurately rendered.\nSo this article addresses those windows, which more likely, are known as lenses.\nGenerally speaking, there are three types of camera lenses. The wide angle, the standard and the telephoto. Each have a special purpose. The wide angle lens is useful when you are in a small room or if you want to be up close and personal with your subject. The standard lens is more less an all purpose lens and the telephoto is useful when you have more distance between you and your subject.\nThis is not to say each of the lenses can’t be useful in other situations. An example of this would be with the telephoto lens. A telephoto lens is often useful for portraits, because of its ability to blur the background. But in the interest of keeping this simple, we’ll leave those details for further exploration later.\nYour question now may be, ‘How do I distinguish a wide angle lens from a standard or a telephoto lens?” As far as physical properties go, usually a wide angle lens will be shorter and stubbier, whereas a telephoto will likely be much long and the standard will fall somewhere between the two.\nA much easier way to learn to understand focal lengths. The focal length is the distance between the optical center of the lens and the surface of the film or, in the case of a digital camera, its sensor. A wide angle lens will have a smaller number, usually 35mm or less. A standard lens is somewhere around 50mm and a telephoto 85mm or above.\nYou may ask, “What about my lens, it’s 28—135mm?” A lens with multiple focal lengths is referred to as a zoom. As you zoom in or out the focal length changes by moving the optical center of the lens closer or farther from the film or sensor.\nA lens with a fixed focal length is called a Prime Lens. Many purest photographers insist that Prime Lenses are better and I would agree. The argument is that the lens was manufactured to do one thing best and this is usually the case. A zoom lens (especially an inexpensive model) will usually have a sweet spot either at its shortest or longest focal length.\nThere are sometime distortions or aberrations found at different focal lengths in inexpensive zoom lenses and this is why the purest will use prime lenses when available. As an example, I use a 17-40mm f/4 lens and the lens is clearly sharper at 17mm than at any other focal length. Is this a reason to use only Prime Lenses? No. There are many instances where using a Zoom Lens is essential.\nI have been asked numerous times what Sharper means, in photographic terms. Two terms used in describing a lens are sharpness and softness. When a lens is extra clear when focused it is referred to as sharp. To be tack sharp is to be perfectly focused. On the other hand a lens called soft usually is not perfectly clear when focused—this is not to say it is out of focus. Often times certain situations will call for soft lens, such as in weddings or other portraits where a dreamy effect is desired.\nSoft can also be a polite, yet derogatory term for a picture that is out of focus. And speaking of Out of Focus, OOF is an acronym you may come across that means exactly that.\nThe next term we need to address is f/stop. There are many debates as to what the f in f/stop means. Some suggest it is an abbreviation for fenestra, which means opening in Latin. Others for something as simple as fraction. Maybe it’s even easier to think of as Focal Length.\nThe reason I say this is that the Focal Length divided by the number that follows f/ is how wide in diameter the Aperture is going to be. In case you don’t know what an Aperture is it is the opening in the lens that the camera sees through. For example a 50mm f/2 lens when Wide Open will have an Aperture 25 millimeters in diameter.\nNow you may be wondering what Wide Open means. Wide Open is when the Aperture is as open as it will get for the particular lens. The opposite is Stopped Down. Think of it as the retina in your eye. When you enter a dark room the retina in your eye gets larger akin to being Wide Open. When you step out into bright sunlight it gets smaller akin to Stopping Down.\nHopefully, all of this makes sense. This next part may be more difficult to understand. f/stop numbers increase as the aperture stops down. Whereas a 50mm f/2 lens is Wide Open at f/2, as the f/stop number increases the Aperture closes. The basic f/stops for this 50mm f/2 lens are f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22.\nOver in the corner I can hear someone say, “I’ve got a 50mm lens, but it says f/1.4. What does that mean?” That means that your lens has an extra stop on the f/2 I have been using as an example. That means that your lens is Faster than mine.\nFaster is another photographic term that describes a lens’s attributes. Generally speaking the Faster a lens is the better and nine times out of ten the more expensive. A Faster lens has a larger aperture. A larger aperture allows in more light. Remember your eye? In a darker room your retina gets bigger allowing more light in.\nThat means with the f/1.4’s larger aperture has a bigger retina. And with a bigger retina you have the ability to see in a darker environment. What difference does this make? On an average sunny day, none. In a low light situation, such as a concert, it can make all the difference in the world.\nHopefully this has been a helpful tutorial on lenses.\nA few things to keep in mine when considering the purchase of a new lens. Whether you know it or not right now, a lower f/stop number is preferable. Faster is always better. And even though this equates to a more expensive lens, it is a good idea to remember that lenses hold their value long after your DSLR is selling for half of what you paid for it.\nNext time I will discuss the effect a crop factor can have on your lenses.","domain":"optical_engineering"}
{"url":"https://web-atlanta.net/2968/automated-vision-inspection-machines-learn-more/","date":"2019-11-22T11:18:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496671249.37/warc/CC-MAIN-20191122092537-20191122120537-00113.warc.gz","language_score":0.9276754260063171,"token_count":1088,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__181423928","lang":"en","text":"Machine vision (MV) is the technology and methods utilized to provide imaging-based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry. Machine vision describes many technologies, software and hardware products, integrated systems, actions, methods and expertise. Machine vision as being a systems engineering discipline can be regarded as distinct from computer vision, a type of computer science. It attempts to integrate existing technologies in new ways and apply them to solve real life problems. The term is the prevalent one for these functions in industrial automation environments but can also be utilized for these functions in other environments such as security and vehicle guidance.\nThe general Top Machine Vision Inspection System Manufacturer includes planning the specifics from the requirements and project, and after that developing a solution. During run-time, the procedure starts off with imaging, accompanied by automated analysis of the image and extraction from the required information.\nDefinitions from the term “Machine vision” vary, but all are the technology and techniques used to extract information from an image with an automated basis, instead of image processing, where output is an additional image. The information extracted can become a simple good-part/bad-part signal, or maybe more a complex set of web data including the identity, position and orientation of each object in an image. The data can be used for such applications as automatic inspection and robot and process guidance in industry, for security monitoring and vehicle guidance. This field encompasses a large number of technologies, software and hardware products, integrated systems, actions, methods and expertise. Machine vision is practically the only saying used for such functions in industrial automation applications; the phrase is less universal for such functions in other environments like security and vehicle guidance. Machine vision as a systems engineering discipline can be looked at distinct from computer vision, a type of basic computer science; machine vision efforts to integrate existing technologies in new ways and apply these to solve real life problems in a manner in which meets certain requirements of industrial automation and similar application areas. The term is also used in a broader sense by industry events and trade groups such as the Automated Imaging Association as well as the European Machine Vision Association. This broader definition also encompasses products and applications generally associated with image processing. The main uses of machine vision are automatic inspection and industrial robot/process guidance. See glossary of machine vision.\nImaging based automatic inspection and sorting\nThe main ways to use machine vision are imaging-based automatic inspection and sorting and robot guidance.;:6-10 within this section the former is abbreviated as “automatic inspection”. The general process includes planning the details from the requirements and project, then creating a solution. This section describes the technical process that occurs during the operation of the solution.\nMethods and sequence of operation\nThe initial step within the automatic inspection sequence of operation is acquisition of the image, typically using cameras, lenses, and lighting that has been made to provide the differentiation essental to subsequent processing. MV software applications and programs created in them then employ various digital image processing techniques to extract the desired information, and quite often make decisions (like pass/fail) based on the extracted information.\nThe constituents of your automatic inspection system usually include lighting, a camera or other imager, a processor, software, and output devices.3\nThe imaging device (e.g. camera) can either be apart from the main image processing unit or coupled with it in which case a combination is normally known as a smart camera or smart sensor When separated, the link may be produced to specialized intermediate hardware, a custom processing appliance, or even a frame grabber inside a computer using either an analog or standardized digital interface (Camera Link, CoaXPress) MV implementations also have digital cameras competent at direct connections (with no framegrabber) to your computer via FireWire, USB or Gigabit Ethernet interfaces.\nWhile conventional (2D visible light) imaging is most often used in MV, alternatives include multispectral imaging, hyperspectral imaging, imaging various infrared bands,line scan imaging, 3D imaging of surfaces and X-ray imaging. Key differentiations within MV 2D visible light imaging are monochromatic vs. color, frame rate, resolution, and whether or not the imaging process is simultaneous within the entire image, making it appropriate for moving processes.\nThough the majority of machine vision applications are solved using two-dimensional imaging, Automated Vision Inspection Machines utilizing 3D imaging are a growing niche within the industry. By far the most frequently used technique for 3D imaging is scanning based triangulation which utilizes motion of the product or image through the imaging process. A laser is projected on the surfaces nefqnm an object and viewed from the different angle. In machine vision this is accomplished having a scanning motion, either by moving the workpiece, or by moving the digital camera & laser imaging system. The line is viewed by a camera coming from a different angle; the deviation in the line represents shape variations. Lines from multiple scans are assembled in to a depth map or point cloud. Stereoscopic vision is utilized in special cases involving unique features contained in both views of a pair of cameras. Other 3D methods used for machine vision are duration of flight and grid based.One strategy is grid array based systems using pseudorandom structured light system as used by the Microsoft Kinect system circa 2012.","domain":"optical_engineering"}
{"url":"https://jinn-tech.com/optical-elements-you-cant-live-without/","date":"2023-12-06T04:43:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00442.warc.gz","language_score":0.9376969933509827,"token_count":503,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__240464509","lang":"en","text":"Optical elements are a critical part of the visual process. They’re responsible for bending, inverting, and distorting light to produce an image that is focused on your retina. The optical system in the eye works with these components to create images that you can see clearly. However, the diffractive optical elements are often the most overlooked part of the optical system.\nThe primary thing they do is split light to be filtered and focused to your retina. They have several uses inside an eye clinic or hospital, from splitting up multiple wavelengths to focusing on specific areas for imaging purposes. This blog post will focus on few critical ones that you need to know about.\nA lens is an optical element that refracts light to produce images. The shape of the lens controls how the curvature affects incoming rays, causing them to converge or diverge at varying distances from its center along a single line known as the principal axis. This design allows you to see objects clearly, both near and far away, without your glasses on!\nAs the name suggests, a prism is an optical element that refracts light to produce images. It can split light into its different wavelengths so it can be filtered and focused on the retina. In ophthalmology, prisms are often used in eye exams with double vision or poor depth perception. It helps your optometrist determine exactly what’s going on with your eyesight.\nA mirror is a reflective surface that reflects light in the direction it came from. They can reduce your need for lenses by reflecting light down to where you want it instead of refracting and focusing on yourself using lenses. In ophthalmology, mirrors are used for directing or reflecting beams into specific parts of the eye when performing surgery.\nA polarizer is an optical element that only allows light waves to pass through in a single direction. It’s used by your eye doctor when performing some types of retinal imaging. The best way to think about it is like the polarized lenses you wear on sunny days. They help cut down on glare so you can see what you are looking at more clearly\n- Wave plates\nWaveplates are optical elements that control the polarization of light. They can rotate or change the plane in which a polarized wave vibrates.\nOptical elements are the only way to control light in the eye. They determine how much you see, where it’s focused, and whether or not you need lenses to help correct your vision.","domain":"optical_engineering"}
{"url":"https://www.c2mi.ca/en/saviez_vous_que/that-human-eye-have-limits/","date":"2024-04-20T17:43:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00106.warc.gz","language_score":0.9350361227989197,"token_count":168,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__28213700","lang":"en","text":"Did you know that the human eye is not sufficient to inspect the various stages of electronic products fabrication? Even using high magnifications to inspect the small structures, the eye, sensitive only to the visible light spectrum, fails to see many types of defects during fabrication. Inspection systems with detectors in different wavelengths are therefore used to inspect in Infra-Red, X-Ray and even using acoustic waves (between 10 and 300 Mega Hertz). The signal obtained by these tools is converted back to a shade of colors visible to the eye and makes it possible to identify defects in various interfaces. This is how the wafers bond interfaces are inspected with an infrared detector that “sees” through silicon wafers. This technique is also used to align patterns on either side of the wafer using alignment features present only on one side.","domain":"optical_engineering"}
{"url":"http://australiancosmeticsurgery.com.au/read-article/60133","date":"2019-05-23T21:21:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257396.96/warc/CC-MAIN-20190523204120-20190523230120-00430.warc.gz","language_score":0.9455094337463379,"token_count":439,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__53430991","lang":"en","text":"LASIK Surgery - How The Excimer Laser Works\nThe Excimer laser is a form of ultraviolet chemical laser, and is the key element that has made laser eye surgery possible. Though Excimer laser was originally used in semiconductor manufacturing in the 1970s, its use in eye surgery is now fairly widespread. While working at the IBM research laboratories in 1982, Dr. Rangaswamy Srinivasin and his research team discovered the potential of the Excimer laser in interacting with biological tissue. An ophthalmologist, Dr. Steven Trokel, explained its connection with the corneal tissue.\nAnd this was how LASIK eye surgery came into existence. There are several types of lasers, but excimer is the preferred choice when it comes to corrective eye surgery. This is due to the fact that excimer is the most technologically advanced laser type. The excimer laser is, literally, a cool laser. That is, it precisely removes the desired part of the corneal tissue, without heating up or damaging the adjacent tissue.\nQuite amazingly, the excimer laser is so precise that it is capable of removing 0.5% of a human hair’s width at a time. That fact itself is enough for patients to believe that excimer-assisted eye surgery is not a gimmick, but a true technology leveraged procedure. With the computer technology at its disposal and the precision offered by the laser, LASIK surgery has emerged as the number one choice for patients with refractive error. Since the excimer laser emits cool, minute beams that make precise incisions on the surface of the cornea, a dedicated technician operates the machine while the ophthalmologist performs the surgery. Your eyes are your window to the world and your sight is the most important of the five senses. Hence, it is all the more imperative that, if need be, you go for an eye surgery that is reliable and has minimal side effects. With the high-precision technology of the excimer laser and the overall reliability of the procedure, LASIK is the most prevalent of corrective eye surgeries.\nAustralian Cosmetic Surgery Articles\nAustralian Cosmetic Surgery Books","domain":"optical_engineering"}
{"url":"https://healthfactspro.com/bionic-eye-implants/","date":"2018-04-19T18:55:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937016.16/warc/CC-MAIN-20180419184909-20180419204909-00324.warc.gz","language_score":0.9474724531173706,"token_count":684,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__140954542","lang":"en","text":"Researchers in collaboration of tech and medical experts are developing new ways for permanent restoration of the sight amongst the affected. The revolution is due to the fact that more than 40 million people around the world suffer from blindness while other 120 million are faced with low vision. To aid these patients, the coming of bionic eye or bionic eye implants is no less than a blessing and a hope of seeing the world in all its glory.\nThere’s one common goal bionic eye scientists wish to achieve and that’s development of technology to cater visual disabilities with bionic eyes. The technology is still in its infancy phase but ongoing research and development would surely make it commercial in times to come. While several bionic eye implants are being developed, only one’s available for blindness caused by specific eye diseases. It’s expected that more and more people would benefit from the technology soon.\nBionic eyes – Going beyond prosthetic implants\nAn important fact that a bionic eye isn’t the same as a prosthetic eye! That being said, prosthetic eyes are also known as “artificial” or “glass eyes” and they literally substitute appearance and physical structure of an eye that has been removed following injury, pain, deformity or lethal disease. Bionic eye implants on the contrary, work inside of the existing eye anatomy or in the brain and designed to achieve visual function goals, other than physical and cosmetic aims.\nBlindness isn’t caused by one single disease or factor and the same goes for cure which comes with many different possibilities. For a bionic eye to work, retina specialist in Dubai would first perform a detailed analysis of the severity and overall patient’s health to know underlying reasons of vision loss.\nOur ability to see begins as light enters the eye after which the cornea focuses it on the retina at the eyeball’s rear. The light sensitive cells then convert the light into electrical energy which is transmitted to the brain thus giving us a clear picture.\nThe process among the blind is different due to damaged or diseased lens or cornea and perhaps inability of the retina to perceive light. Signal is thus lost somewhere along the visual trajectory in the brain. The development of different bionic eye models is aimed to serve various areas of the visual path so as to cater patients with different anomalies, all leading to blindness ultimately.\nAlthough corneal transplants and cataract surgery can replace the natural eye lens due to defects or cloudiness, bionic eyes are the only retinal implants being commercially approved.\nThe appropriate subjects/receivers of bionic eyes\nFDA in the U.S. approved just one commercially available bionic eye device known as the Argus II Retinal Prosthesis System. It was developed by Second Sight; a California-based company. Argus II promises restoration of visual perception among hundreds of patients with high-grade retinitis pigmentosa. The device is further tested on people with a more common eye anomaly known as Age Related Macular Degeneration (ARMD).\nA ray of hope for the blind\nFuture iterations and development seems to be far more advanced than the current Argus II, giving a ray of hope for the blind to see the word again.\nThis content is proudly offered by Moorfields Eye Specialists in Dubai.","domain":"optical_engineering"}
{"url":"https://www.premiumessays.net/research-paper-on-hologram-technology/","date":"2024-04-25T05:33:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00644.warc.gz","language_score":0.9080336093902588,"token_count":534,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101322875","lang":"en","text":"Hologram is a physical structure that diffracts light to enhance an image that occurs due to diffraction of light. This technology incorporates three dimensional projection forms that make the image visible on a screen via illuminated holographic print.\nIn 1947, a Hungarian native Denis Gabor formulated the idea to depict the “two-step optical imagery” (Curtis, 2010). His objective was to improve the view of electrons on a microscope. This resolution made him observe to images ‘holos’ and ‘grama’ that formulated the word ‘whole message’ (Schnars & Jueptner, 2005).\nHolography is a form of science that translates to light interference via transmission or reflection. To create a hologram, there is need for a light source, object, and means that can split the rays of light. The initial stage occurs when they split the light beam into more and similar beams, and redirect them using a mirror. In addition, Holography enables the reconstruction and capturing of spatial images that are dependent. Details in a hologram are different from photographic films because they are enfolded within the interior surface.\nIt is also evident that holographic images incorporate unique display that exhibit a spatial and dynamic scene. Holographic procedure can be used to create two images in an object wave. It is clear that the superposition of light in this technology enhances a complex pattern. The diffraction of these complex gratings subjects the complex images to be regenerated. The procedure of holography via transmission diffracts the light that is illuminated. Conversely, transmission photography has a different quality in vision that is controlled by geometry. In a transmission hologram, different colors in presence of light happen due to various wavelengths.\nThis technology is vital to materials that applies to security such as credit cards and pass ports. It makes the materials hard to duplicate in absence of a master hologram. This procedure is also beneficial when it is used to generate three dimensional video.\nCurtis, K. R. (2010). Holographic data storage from theory to practical systems. Hoboken, NJ: Wiley.\nSchnars, U., & Jueptner, W. (2005). Digital holography digital hologram recording, numerical reconstruction, and related techniques. Berlin: Springer.\nContinue reading more high quality Research papers like the one above on Hologram Technology On our blog. Alternatively, you can also talk to us directly for help with essays, research papers, dissertations or any other assignment.","domain":"optical_engineering"}
{"url":"https://growersnetwork.org/cultivation/measure-horticultural-lighting-performance-part-two/","date":"2022-01-23T05:34:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304134.13/warc/CC-MAIN-20220123045449-20220123075449-00584.warc.gz","language_score":0.919899582862854,"token_count":1229,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__204369551","lang":"en","text":"In the second part of our series on measuring horticultural lighting performance, we examine different lighting measurements used frequently in the horticultural lighting industry.\nWant to read the previous article or the next one? Check below!\nPhotosynthetically Active Radiation, or PAR, is the portion of the electromagnetic radiation that drives photosynthesis. PAR ranges in wavelength from 400 to 700 nanometers (nm). Although PAR is within the human visible range of the light spectrum, plants use light differently than humans (Figure 1).\nMeasurement of human perception of light is given in lumens and the human light sensitivity curve is called the photopic curve. Because the plant-light-response curve lacks significant overlap with the photopic curve, measurements of human light sensitivity should be avoided when selecting light fixtures for plant growth. Fixture specifications measured in lumens, Lux (lumens/m2), foot candles (lumens/ft2) or a combination should be avoided for grow-operations.\nPhotosynthetic Photon Flux (PPF), measured in µmol/s (Pronounced “Micromoles per Second”), defines how many photons of light are emitted per second that are photosynthetically active. This information is crucial when purchasing a horticultural lighting system, as it is the quickest metric for determining the general “power” of a fixture. For example, a clone producer who maintains a vertical farm with tightly spaced shelving needs to provide the optimal light intensity for unrooted clones. Unrooted clones generally need low-intensity lighting fixtures with a suitable form factor to provide light a few inches away from the plant canopy with high uniformity. A clone producer would probably look for a fixture with a PPF of 200, not 1500.\nHowever, PPF is not the be-all, end-all of measurements. A horticultural lighting system is made up of a combination of luminaires, reflectors, lenses,heat sinks, drivers and power supplies. A fixture company can increase their PPF by only measuring the PPF value produced by the lamp or luminaire, and not including PPF loss due to other parts of a fixture such as the reflectors.\nFor any lighting fixture, the luminaire PPF output degrades over time. The rate of PPF degradation differs depending on the fixture type. PPF degradation rates for filamented lamps are significantly higher than those of LED fixtures. Additionally, the spectrum of light changes over time, except for LED fixtures. These changes affect the yield and consistency of the crop, harvest after harvest, and can negatively affect growers who rely on consistency to meet consumer demand. This is the reason why it is common to frequently replace HID bulbs, an added operating expense. If you want to compare fixtures for financial purpose, it is wise to take into account the fixtures’ expected lifetime.\nPhotosynthetic Photon Flux Density (PPFD) examines the number of photosynthetically-active photons crossing a plane of defined area (typically the canopy) per second. Quantum sensors measure PPFD in units of µmol/m2/s (Pronounced “Micromoles per meter squared per second”). In many ways, PPFD is considered to be the go-to measurement of light “intensity” alongside of PPF. PPFD is influenced by the fixture light output (PPF), distance from the fixture to the plant canopy, fixture light distribution pattern (beam angle), the angle of light falling on the leaf surface and the surface area of the canopy. On a plant canopy, there are an infinite number of potential PPFD measurements from the center to the edge. These values provide a richer understanding of the distribution of the light intensity over the canopy.\nLight uniformity is key to producing a consistent crop. An isoline PPFD map provides a better understanding of the light dispersion pattern (Figure 2). In the horticultural lighting industry, it is common to provide an average light intensity for a defined canopy area; this average intensity can cover anywhere from a 4’x4’ cannabis canopy to a 30’x200’ bay of basil plants in a greenhouse. Think of this measurement as the average of all the spot PPFD measurements on the canopy. Average PPFD helps to determine the daily light integral (DLI) and quantify plant responses based on light intensity. In turn, this allows the grower to predict yield and crop growth potentials based on the PPFD and other environmental conditions.\nHowever, please be aware that the average PPFD alone is meaningless. A plant canopy can have the same average PPFD under two different lighting fixtures, but the light uniformity could be poor for one fixture (Figure 2). Therefore, when requesting a lighting proposal for your grow-operation, look for average PPFD and light uniformity together. If you receive a lighting proposal with just average PPFD, request minimum and maximum PPFD, or a visual representation of the light distribution in the form of an isoline map (Figure 2) or a false color distribution (Figure 3).\nFigure 2: Two light fixtures with 1000 PPF light output show significant uniformity differences. Fixture A provides greater PPFD uniformity due to an optimized form factor.\nDeveloping and Optimizing a Cannabis Cultivation SystemDecember 14, 2021\nFriends of CC – POSTAugust 17, 2021\nDealing with Insomnia: How Can CBD Help?December 10, 2020\nYour Guide to Sleep and CBDDecember 7, 2020\nDo you want to receive the next Grower's Spotlight as soon as it's available? Sign up below!\nWant to get in touch with Tharindu? He can be reached via the following methods:\nDo you have any questions or comments?\nAbout the Author\nTharindu Weeraratne, PhD, is a horticulture scientist and a plant physiologist working with Fluence Bioengineering.","domain":"optical_engineering"}
{"url":"https://www.universityeyecenter.org/conditions-diseases/","date":"2023-11-30T23:15:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100258.29/warc/CC-MAIN-20231130225634-20231201015634-00191.warc.gz","language_score":0.8761695027351379,"token_count":1400,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__316519642","lang":"en","text":"The University Eye Center at SUNY College of Optometry provides the latest in diagnosis, treatment, and management of a range of visual disorders and eye conditions. Click below to find additional information on specific diseases and available testing.\nA Scan Ultrasonography uses the speed of sound through the different media of the eye to allow the clinician to assess axial length. B Scan Ultrasonography uses the same principles to allow the clinician to assess the various structures of the globe and posterior segment. Commonly, retinal detachments and lesions are assessed with this technique.\nCorneal Topography (Orbscan)\nThis device maps a patient’s anterior and posterior corneal surface with respect to thickness, surface power and contour. Common indications include determining a patient’s eligibility for refractive surgery and aiding in the diagnosis and management of corneal diseases, such as keratoconus.\nDigital Anterior and Posterior Photography\nDiseases and abnormalities of the cornea, angle, lens and retina are documented by means of photography throughout our clinics. Optos panoramic viewing allows for 200° wide field color imaging through a pupil as small as 2mm diameter. We perform fundus autofluorescence imaging with Optos.\nThis procedure involves injecting a small bolus of fluorescein into a patient’s arm and photodocumenting the flow of the vegetable dye derivative through the choroidal and retinal vasculature over time. An exciter filter and a barrier filter allow the fluorescein to fluoresce and block out all other wavelengths. Macular edema and vascular abnormalities, such as neovascularization, are commonly assessed by fluorescein angiography.\nThe GDx (Glaucoma Diagnosis) VCC (Variable Corneal Compensation) uses scanning laser polarimetry and the birefringent properties of the retinal nerve fiber layer to assess thickness and check for changes over time.\nThe Heidelberg Retinal Tomographer 3 uses confocal laser scanning technology to measure retinal contour, especially of the retinal nerve fiber layer as it converges at the optic nerve head. Changes in the optic nerve head and nerve fiber layer contour over time may be monitored.\nMeibography is a non-invasive diagnostic procedure which allows infrared imaging of the Meibomian glands along the eyelids. It is useful in diagnosing Meibomian gland dysfunction.\nOptical Biometry IOL Master\nUsing the principle of laser interferometry, this device records a patient’s axial length, anterior chamber depth and corneal surface curvature. These measurements are then incorporated to calculate the correct intraocular lens power to be inserted after cataract extraction.\nOptical Coherence Tomography\nOptical Coherence Tomography is a non-invasive diagnostic instrument used for imaging the retina. Doctors are able to see a cross section or 3D image and detect a variety of eye conditions and eye diseases such as macular degeneration, glaucoma and retinopathy.\nA pachymeter uses ultrasound to determine a patient’s corneal thickness and is typically part of a glaucoma evaluation.\nSpectral Domain OCT (Cirrus/Optovue)\nSpectral Domain OCT takes many more readings per second than earlier technologies (Stratus) and provides the clinician with a 3-dimensional topographical view of the retinal tissue of concern at a much higher resolution. Commonly, macular edema and retinal nerve fiber layer thinning are quantified using this device.\nThe Ultrasound Biomicroscope (UBM) uses ultrasound to acoustically assess the characteristics and relative positions of the various structures of the anterior segment. The angle may be assessed as open, closed or occludable.\nAutomated Kinetic Perimetry\nAutomated Kinetic Perimetry applies the same principles as manual kinetic perimetry however, instead of a trained perimetrist manually moving, choosing and displaying the targets, these functions are programmed into a computer.\nAutomated Perimetry (Standard)\nAutomated Perimetry involves systematically quantifying a patient’s visual field by showing to an illuminated target against a defined background and recording the patient’s response. The target is shown at different intensities and positions in order to plot the extent of the patient’s visual field and define the patient’s threshold at each test position. Ocular and neurological conditions which can affect the visual field are commonly assessed in this way.\nElectrooculography is an electrodiagnostic test to assess the function of the retinal pigment epithelium. The clinical application of this test is to help rule out one of the hereditary retinal diseases that often affects macular function, called Best Vitelliform Macular Dystrophy. The test takes about 45 minutes and tests saccadic eye movements under scotopic and photopic conditions. It is usually performed in the Hereditary Eye Disease Clinic.\nElectroretinography assesses the function of the neural cells of the retina, especially the photoreceptors, by quantifying their electric responses to visual stimuli. The procedure is done under photopic and scotopic conditions and is commonly used to aid in the diagnosis of and monitor for progression in many retinal degenerations and dystrophies, including retinitis pigmentosa and cone dystrophies.\nFrequency Doubling Technology Perimetry\nThis technique assesses a patient’s visual field and involves the use of a target best described as a sine wave grating of a low spatial frequency which flickers at a high temporal frequency. This perimetric technique tests the magnocellular pathway because the target has a defined temporal frequency.\nManual Kinetic Perimetry\nManual Kinetic Perimetry involves a trained perimetrist who moves an illuminated target against a defined background. The extent of the visual field is mapped to targets of different sizes and brightness. The results of this method are plotted in the form of isopters, which are lines of equal light sensitivity that, when plotted for each light brightness and size, resemble a topographic map with the peak at the most sensitive points. Ocular and neurological conditions which may affect the visual field are assessed in this way.\nVisually Evoked Potentials\nVisually Evoked Potentials are cortical responses to visual stimuli, usually flickering lights, which are measured by electroencephalography focused on the occipital cortex. Conditions with the capacity to affect these potentials, such as stroke and demyelinating disease, may be assessed in this way. Cortical function in non-communicating patients may also be assessed with this technique.","domain":"optical_engineering"}
{"url":"https://clarkreliance.com/maintenance-videos/","date":"2021-04-14T10:13:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038077810.20/warc/CC-MAIN-20210414095300-20210414125300-00481.warc.gz","language_score":0.8506515622138977,"token_count":178,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__68693931","lang":"en","text":"Clark-Reliance is pleased to announce the release of Jerguson® & Jacoby-Tarbox® Maintenance Videos. These instructional videos are to assist in the proper maintenance and rebuild for Jerguson® Transparent and Reflex Glass Gages as well as well as Jacoby-Tarbox® Sight Flow Indicator and Dual Window and Glass with Holder.\nProper maintenance procedures for the Jerguson Transparent Gage.\nProper maintenance procedures for the Jerguson Reflex Gage.\nThis Jacoby-Tarbox instructional video demonstrates the rebuilding of a typical bulls-eye sight flow indicator. The procedure is the same for all manufacturers with cross-bolted assemblies.\nThis Jacoby-Tarbox instructional video demonstrates the rebuilding of a typical Dual Window assembly or a Glass with Holder assembly used in bulls-eye sight flow indicators or sight windows.","domain":"optical_engineering"}
{"url":"https://www.jaguar-e-type.net/product/socal-led-h11-h8-fanless-led-conversion-kit-60w-6400lm-6000k-xenon-white-car-headlight-bulbs","date":"2018-12-15T08:46:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826842.56/warc/CC-MAIN-20181215083318-20181215105318-00269.warc.gz","language_score":0.8325223326683044,"token_count":737,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__170727448","lang":"en","text":"SOCAL-LED H11 H8 Fanless LED Conversion Kit 60W 6400LM 6000K Xenon White Car Headlight Bulbs\nFree Shipping Included! SOCAL-LED H11 H8 Fanless LED Conversion Kit 60W 6400LM 6000K Xenon White Car Headlight Bulbs by SOCAL-LED LIGHTING at JE Type. MPN: LKT-3G6-H11W. Hurry! Limited time offer. Offer valid only while supplies last. Why choose Fanless LED Bulbs Kit For Cars? It's well known HID lamps were the optimal light source on vehicles from the beginning of the 21st\nWhy choose Fanless LED Bulbs Kit For Cars? It's well known HID lamps were the optimal light source on vehicles from the beginning of the 21st century. With the advent of LED technology, and improved light output and reliability, LED is the new alternative and replacement. Luxury car manufactures such as Audi have been incorporating LED as the main light source in their vehicles and are completely slowly abandoning HID. LED offers lower heat, longer life and much improved reliability.\nWhere our LED Headlight Bulbs Stand Out:\nWith the elimination of flaws that are present in other LED Headlight Bulbs, These LED Headlight Bulbs truly outperform the other brands. With new design heat dissipation technology LED Headlight Bulbs are made to last.\nA Perfect Light Pattern: Without the proper beam pattern LEDs result in unfocused light that is scattered and foggy. Our LED Headlight Bulbs are designed to emit perfect beam patterns all while providing crystal clear LED lighting.\nTrue 6000K Cool White Lighting: Crystal clear lighting is provided with zero warm-up time.\nTrue Plug-N-Play: Plugs directly into your OEM sockets and fits perfectly into your headlights.\n- Wattage: 60W/Set\n- Voltage: DC12V-24V\n- Color: White\n- Beam Angle: 280 degree\n- Lumens: 6400LM\n1) Please double check the size of the bulb with your car before purchase. The amazon bulb fitment guide will tell you if these fit your vehicle However! It will not tell you if its for fog, low beam or high beam.\n2) Please check your car Owner's Manual.\n3) We Suggest you to use Sylvania or Philips automotive lamp replacement guide online to ensure you purchase the right size bulb.\nVehicles such as Dodge, Jeep, Chrysler, GMC, Audi, BMW, Mercedes and Etc High-End cars may require additional decoder to avoid flickering.\nFeatures & Highlights\n- Super bright white LED Headlights bulbs which can replace HID Xenon and traditional Halogen Lamp.\n- Crystal clear 6000K white light bulbs with 6400Lm (3200LM per bulb) LED lighting output shine without dark spots.\n- Latest heat dissipation system copper cooling belt design LED Conversion Kit, 60% Less Power Consumption, No cooling fans needed! More stable and No noises.\n- Instant on/off response time, waterproof and vibration resistant car headlight bulbs\n- Plugs directly into your OEM sockets, if bulb doesn't turn on at first, you may have to rotate the plug (reverse polarity) since some vehicles use negative ground wire for power.\n|Item Weight:||0.94 pounds|\n|Item Size:||5.2 x 2 x 2 inches|\n|Package Weight:||0.9 pounds|\n|Package Size:||5.2 x 1.89 x 1.89 inches|","domain":"optical_engineering"}
{"url":"http://acutintpro.com/tesla-glass-roof-performance.html","date":"2023-11-29T01:31:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100047.66/warc/CC-MAIN-20231129010302-20231129040302-00023.warc.gz","language_score":0.8551539182662964,"token_count":135,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__295108875","lang":"en","text":"Does Tesla glass roof need to be tinted?\nWe are using a BTU meter to demonstrate the measuring of the radiant heat coming in from the sun, and to also demonstrate that the Tesla glass roof is designed to block out an extraordinary amount of solar energy.\nModel 3 Glass Roof Demo\nModel Y Glass Roof Demo\nStandard Glass UV Exposure\nTesla Glass UV Exposure\nTesla glass roof comes with built-in Polyvinyl Butyral, (PVB). PVB film acts as a fantastic barrier against solar radiation, especially the infrared kind. Filters out all the extra heat, blocks up to 99.9% harmful UV rays. Excellent thermal protection.","domain":"optical_engineering"}
{"url":"https://lasr.tamu.edu/research/machine-vision/","date":"2023-12-11T08:29:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679103810.88/warc/CC-MAIN-20231211080606-20231211110606-00429.warc.gz","language_score":0.9023922085762024,"token_count":1189,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__273533140","lang":"en","text":"Vision-Based Inertial Navigation\nA high-precision vision-based inertial navigation software package is being developed to enhance the performance of an Inertial Navigation System (INS), or to allow navigation in GPS denied environments. Traditionally an INS consists of an Inertial Measurement Unit (IMU) measuring body-frame accelerations and rotation rates, and a GPS to measure inertial position and velocity in an Earth-fixed coordinate frame. A Kalman filter combines measurements from these various sensors and keeps a time history of the inertial position and orientation of the vehicle. The GPS measurements allow the filter to estimate the time varying biases present in the IMU data. Ultimately the precision of the navigation solution is determined by the measurement noise of the IMU, and therefore if a high quality estimate of inertial pose is required, one must spend a large amount of money on a very high quality IMU. Additionally, if the GPS signal is lost, the IMU biases are no longer able to be estimated and the inertial navigation solution will accumulate bias error until GPS is reacquired.\nUsing a camera in the vehicle to observe and track features in the environment can alleviate these problems. A high-resolution camera alongside a cheap IMU can provide the same or higher quality navigation solution as a much more expensive IMU. Additionally, if the inertial-frame coordinates of some of the observed features in the environment are known, navigation can continue with high fidelity even without GPS.\nThe LASR vision-based inertial navigation software is under development with the goal of providing a high-fidelity navigation solution to enable aerial mapping with the HD6D LIDAR sensor. The software will be used in combination with a VectorNav VN-200 INS. Initial flight tests have occurred in a Cessna O-2A Skymaster owned by the Texas A&M Flight Research Lab (FRL).\nComputational Vision Pipeline\nTo solve the Simultaneous Localization and Mapping (SLAM) problem is to calculate one’s own six degree-of-freedom motion with respect to an unknown scene, and to simultaneously generate a three-dimensional map of the scene. LASR_CV is a computational vision pipeline for solving the SLAM problem in real time. A modular and extensible framework, LASR_CV is designed for rapid-prototyping of algorithms and sensors for estimation and computer vision. LASR_CV consists of several modules operating in parallel to generate frame-rate pose estimates and geometric models. This modular architecture decouples research topics of interest from the SLAM problem as a whole, enabling developers and researchers to test their software or hardware easily. Each module has “hooks” into the internal data to enable algorithmic tuning or report generation. When combined with inertial measurements, detailed error studies of individual sensors or algorithms can be performed.\nCustom object recognition algorithms have been developed to calculate real time estimates of the relative pose of target objects observed using vision-based sensors. This pose information can be used for proximity navigation in the vicinity of a known object. The software utilizes an iterative least squares solution to estimate the relative pose of the target with respect to the sensor by comparing measured geometric point clouds with a known geometric model of the target. The software is modular, and development has been largely application driven. Target objects can be modeled as a function using three-dimensional parametric surfaces, or empirically as a point cloud or wireframe model.\nA recent implementation is being used to provide five degree of freedom relative pose estimates of a mock upper stage rocket nozzle for ground based simulation of space debris mitigation missions. The rocket nozzle is modeled as a parametric surface of revolution, thus allowing rapid convergence to a pose estimate.\nUsing the principle of triangulation between two cameras separated by a fixed baseline distance, or by images from the same camera displaced by motion through space, stereo correspondence matches of the same points yield a 3-dimensional reconstruction of a scene. These 3D reconstructions may be used as an input to the TAMU-CV Computer Vision Pipeline, or as standalone tools for robotic situational awareness or path planning.\nLASR Lab has extensively studied the strengths and weaknesses of stereo based mapping for space applications. One of the largest drawbacks of stereo correspondence matching is computational expense. To address this issue, a novel dense stereo algorithm for correspondence matching in the Fourier Frequency Domain, the output of which is high-fidelity local 3D models at frame rate, has been implemented in a parallel computing environment aboard the Graphics Processing Unit (GPU) using NVIDIA’s Compute Unified Device Architecture (CUDA).\nActive stereo operates by projecting a known pseudo-random infrared pattern onto the scene and then observing how that pattern registers with an infrared camera. Positioned at a known baseline distance, the camera/projector pair allows for computing depth data via stereo triangulation. A color camera provides native surface texture for the resulting three-dimensional geometric point cloud. Active stereo addresses many of the failure modes of traditional passive stereo, and is particularly attractive for space applications due to its low cost and small size. LASR Lab uses the Microsoft Kinect and the Asus Xtion passive stereo sensors.\nLASR Lab, in collaboration with Systems and Processes Engineering Corporation (SPEC) is developing a novel LIDAR sensor for space applications. The sensor is capable of delivering high-definition full color point clouds at ranges of 1m to several km. Designed around a rotating prism system to distribute the outgoing laser light, and parallel data receivers to process returns, the sensor is capable of 12 million independent range measurements per second. The eye-safe system combines the high data rate and large field of view of a flash LIDAR with the accuracy and range of a scanning LIDAR into a single compact package.","domain":"optical_engineering"}
{"url":"http://visualsweb.com/news/electronics","date":"2022-05-16T11:07:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662510117.12/warc/CC-MAIN-20220516104933-20220516134933-00133.warc.gz","language_score":0.9355103373527527,"token_count":128,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__38266622","lang":"en","text":"April 5, 2022\nDigital video camera is a video recording device that is based on digital instead of analog representations of the video signal. Commonly, digital video recording is done on tape which is then distributed on optical discs such as a Digital Video Disc or DVD. The exceptions are camcorders, where the ..\nMarch 31, 2022\nThe digital camera is completely different to a conventional camera that focuses light onto a roll of film and then depends on the use of chemicals for processing. The digital camera does focus light, but it is focused onto a complimentary metal oxide semiconductor (CMOS) - or a charge coupled devic..","domain":"optical_engineering"}
{"url":"https://northstaroutdoorlightingaz.com/laser-landscape-light-12v-outdoor-amazing-light-affect/","date":"2023-12-09T23:54:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100989.75/warc/CC-MAIN-20231209233632-20231210023632-00441.warc.gz","language_score":0.816297709941864,"token_count":146,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__165537871","lang":"en","text":"The Laser Landscape Light combines laser and holographic optical elements to produce stunning lighting effects you must see to believe. Simply point the fixture toward trees or bushes to watch your outdoor landscape come alive with thousands of twinkling lights. The fixture comes in a beautiful bronze finish, is easy to install, and is weather-resistant.\n- Bronze finish.\n- Two built-in precision glass lenses.\n- Consumes just 10 watts.\n- Easy to install.\n- One light covers up to 625 square feet. Each foot of throw yields 2 1/2 feet of coverage.\n- 4 1/2″ wide.\n- 3 3/4″ high.\n- 14 1/4″ long.","domain":"optical_engineering"}
{"url":"https://www.rocketstock.com/video-packs/lucent-ultra-vivid-lens-flares/","date":"2022-05-20T03:22:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662531352.50/warc/CC-MAIN-20220520030533-20220520060533-00575.warc.gz","language_score":0.8357903361320496,"token_count":186,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__184043577","lang":"en","text":"Lucent Ultra comes packed with 260 premium lens flares filmed on Zeiss Ultra Prime and Master Prime lenses. Harnessing Zeiss’ crisp, clean aesthetic, this collection is designed to give any video a bright and vibrant hit.\nShot on lenses ranging from 10mm all the way to 135mm, Lucent Ultra is an authentic alternative to lens flare plugins.\nAdd vibrance to any project from wedding videos to travel vlogs and beyond.\nSimply drag-and-drop each lens flare directly onto your timeline.\nUltra was shot with 15 Zeiss Ultra Prime and Master Prime lenses - from 10mm to 135mm.\nEdit color and speed to get your lens flares just right.\nYou’ll be a lens flare pro in no time with Lucent Ultra’s comprehensive video tutorial. We’ll take you from initial setup to customization, all the way to the final product.","domain":"optical_engineering"}
{"url":"https://spw2019.polimi.it/index.html","date":"2023-06-01T05:52:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00435.warc.gz","language_score":0.8539134860038757,"token_count":571,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__175550305","lang":"en","text":"So remember to look up at the stars and not down at your feet. Try to make sense of what you see and hold on that childlike wonder about what makes the universe exist.Stephen Hawking\nWelcome to the home of Single-Photon Workshop 2019, which will be held at Politecnico di Milano, Milan (Italy). SPW 2019 is the nineth and latest installment in a series of workshops on single-photon technologies and applications. Single-photon technologies are vital to applications such as quantum cryptography, quantum information processing, quantum imaging, and quantum metrology. Fields such as astrophysics, nuclear physics, and biology also benefit from developments in single-photon technologies.\nSPW 2019 is intended to bring together a broad range of people with interests in single-photon sources, single-photon detectors, photon entanglement, and their incorporation into scientific and industrial tools. Researchers from universities, industry, and government will report on the latest developments in single-photon devices and methods with a view toward improved performance and new application areas. It will be an exciting opportunity for those interested in single-photon technologies to learn about the state of the art and to foster continuing partnerships with others seeking to advance the capabilities of such technologies.\nLatest results on single-photon detectors, including new architectures and solutions to broadly achieve single-photon sensitivity.\n• Single-photon avalanche diodes (SPADs and SiPM).\n• Superconducting single photon detectors.\n• Single photon detector arrays\n• Photon-number-resolving detectors.\n• Integrated single photon detectors.\n• Novel single photon detectors.\nGenerate and control light emission at single photon level: materials, schemes and architectures.\n• Spontaneous parametric down-conversion and four-wave-mixing.\n• NV centers.\n• Quantum dots.\n• On-demand single-photon sources.\n• Integrated single-photon sources.\n• Entangled photon-pair sources.\n• Generation, collection and manipulation of non classical states of light with discrete photon numbers.\nSingle photon technologies for scientific applications, from ground to space.\n• Quantum communications and security.\n• Optical quantum-state generation and photon manipulation.\n• Quantum correlation and entanglement.\n• Quantum computing.\n• Quantum random number generators.\n• Integrated quantum photonics.\n• Imaging and ranging (LIDAR).\nValidation techniques and instrumentation to prove single-photon generation and acquisition.\n• Methods for characterizing single-photon detectors and sources.\n• Quantum sensing.\n• Weak measurements.\n• Novel measurement schemes.","domain":"optical_engineering"}
{"url":"https://docoh.com/patent/by/companyId/1836833","date":"2022-10-01T11:16:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335609.53/warc/CC-MAIN-20221001101652-20221001131652-00043.warc.gz","language_score":0.8250282406806946,"token_count":185,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__124653259","lang":"en","text":"Controlling a Line of Sight Angle of an Imaging Platform\n18 Aug 22\nSystems and methods of capturing imagery are provided.\nM. Dirk Robinson, Jonathan Dyer, Joshua Levine, Brendan Hermalyn, Ronny Votel, Matt William Messana\nFiled: 5 May 22\nSystems and methods for implementing time delay integration imaging techniques in conjunction with distinct imaging regions on a monolithic charge-coupled device image sensor\n12 Jul 22\nSystems and methods in accordance with embodiments of the invention implement TDI imaging techniques in conjunction with monolithic CCD image sensors having multiple distinct imaging regions, where TDI imaging techniques can be separately implemented with respect to each distinct imaging region.\nIgnacio Zuleta, Adam Fritzler\nFiled: 15 Mar 21\nPatents are sorted by USPTO publication date, most recent first","domain":"optical_engineering"}
{"url":"https://scipop.org/at-subnanoscale-researchers-see-a-longitudinal-plasmonic-field-in-a-nanocavity/","date":"2023-12-04T13:06:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00570.warc.gz","language_score":0.9331993460655212,"token_count":405,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__315344830","lang":"en","text":"According to study reported in the Journal of the American Chemical Society, a team of researchers working on surface-enhanced Raman spectroscopy (SERS) developed a nanoruler to throw light on the longitudinal plasmonic fields in nanocavities.\nSERS is a very effective and sensitive spectrum analysis method that may be used in a variety of disciplines. SERS generates a greatly amplified Raman signal of up to 1010-15, allowing the investigation of single molecules, in contrast to weak Raman scattering.\n“To a considerable extent, how we develop the technology hinges on our understanding of plasmonic fields. In the experiments, we saw that the plasmonic field at the nanoscale was distributed unevenly. However, it is not supported by theory or experiment.\nYang declared that “strong instruments are required.” Yang and his colleagues had to devise a method of measuring plasmonic field exploration from the outset of the investigation. So, in order to examine it with great spatial resolution, we created and made the nanoruler.\nA plasmonic nanocavity was created by mixing ultra-smooth gold sheets and single gold nanoparticles to create a novel nanoruler with a spatial resolution of roughly 7 x 10–10 m.\nThey also created the spacer layer, a unique and ground-breaking five-layer two-dimensional atomic crystal structure, in which they placed a monolayer of WS2 as a SERS probe and the remaining four layers of WS2 as reference layers.\nThis unique design produced a strong enough quantitative SERS intensity to directly and quantitatively determine the distribution of the longitudinal plasmonic field.\nThe researchers extended and confirmed their findings with theoretical derivations, computations, and spectrum measurements in addition to manufacturing and direct experimentation. Their findings demonstrate the uneven distribution and unexpectedly substantial intensity gradient of the longitudinal plasmonic field within a single nanocavity.","domain":"optical_engineering"}
{"url":"http://maci1680wxwblog.blogdon.net/eye-surgical-treatment-4051870","date":"2018-07-22T20:25:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593586.54/warc/CC-MAIN-20180722194125-20180722214125-00012.warc.gz","language_score":0.9530676007270813,"token_count":1331,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__177254016","lang":"en","text":"Eye Surgical treatment\nEye Surgery has actually ended up being a mainstream technique of vision correction, and also this post will describe the benefits and negative aspects of three different techniques being supplied to the clinical customer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and also is an eye medical system which completely fixes vision by eliminating a slim layer of the cornea. This treatment functions best on people with modest to high levels of myopia (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism associated with myopia, and that have thick corneas. It is one of the most widely known medical vision adjustment technique.\nPeople with normal eye view see things plainly due to the fact that images are brought right into an appropriate prime focus by the cornea as well as lens of the eye. Preferably, the cornea's curvature is uniformly matched to its length in a regular eye. Individuals with astigmatism, nearsightedness or hyperopia have irregularly shaped corneas, so the objects seen are not concentrated correctly. LASIK modifications corneal form by accurate removal of corneal tissue, and by doing so corrects the eyes' concentrating power.\nThere are, nevertheless, dangers to LASIK eye surgery.\nThere is a remote chance of complete loss of vision. If this takes place, it is normally since the client had a pre-existing problem which needs to have precluded the surgical treatment to begin with, such as pregnancy, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. Individuals with large pupils are likewise poor prospects for LASIK. Dry eye syndrome will certainly be worsened by this treatment.\nA couple of people grumble that they permanently see \"ghost\" images, have blurred vision, lessened contrast and also poor night vision. When LASIK wased initially presented, 5% of patients had post-operative grievances; nonetheless, refinements in the treatment have actually triggered this price to go down to less compared to 1% if LASIK is performed by proficient professionals and clients are effectively evaluated prior to surgical procedure. If troubles do take place, they could commonly be resoved by a retreatment.\nFDA has actually authorized LASIK laser eye surgical treatment since 1998. While there are a lot of satisfied people, there are however no long term research studies concerning its effects. Understand the constraints and the risks of LASIK eye surgery prior to you sigh up for the procedure.\nThough less well known, these tiny implants can enhance vision in clients with moderate to modest myopia without the danger of permanent eye damages inherent in the tissue elimination method of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to presume a flatter shape. Though a little less accurate than LASIK, they are removeable and exchangeable, so if the individual has an unexpected over- or under-correction, the dental implant could be eliminated and also another of a various size placed to acquire the preferred adjustment. The implants lie at the edge of the cornea, so the central visual area is entirely intact and also undamaged, and the stamina of the cornea is undiminished, making it a much better choice for pilots as their explanation well as those that engage in contact sporting activities where eye injury is an opportunity.\nIntacs disagree for serious nearsightedness and greater than small astigmatism (1.00 diopters), as the cornea can just be stretched thus far. If the Intacs are eliminated, vision go back to its preoperative degree. In addition to vision improvement, Intacs are also made use of to treat keratoconus.\nIntacs are FDA accepted and also One Decade researches have disclosed no significant problems with Intacs and also few client problems; nevertheless, since the treatment takes a lot more training than LASIK, there are fewer eye surgical procedure facilities offering it. Nonetheless, the Intacs internet site gives a checklist of professionals in each state, also more info here a few in Canada, Europe as well as Mexico.\nSince lots of people do not wish to run the risk of LASIK as well as Intacs can not aid those with extreme vision issues, intraocular lens implants (IOL) are a brand-new alternative authorized by the FDA in 2004 to remedy moderate to serious nearsightedness. The Artisan lens, made by Ophtec, is similar to the kind of lens implant made use of to bring back vision complying with cataract eye surgical procedure.\nThe brand-new IOL, called the Artisan, is planned for only individuals who have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not replace the natural lens, yet is placed in front of it. The major problem found with the dental implant was the constant loss of endothelial cells in the corneas of people who obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are important in maintaining the cornea clear. A three-year research study showed a continuous steady loss of endothelial cells of 1.8 percent a year. Now, no person can predict whether this loss will certainly proceed at the very same price indefinitely, or perhaps its effect on corneal feature.\nTo reduce long-lasting impacts of the tool on the corneal endothelium, the FDA is needing that the brand-new lenses be identified to specify that they need to just be dental implanted in clients whose corneal endothelial cells are thick sufficient to withstand minor cell loss.\nExtra significant difficulties were couple of: retinal detachment (0.6%), cataract advancement (0.6%), as well as corneal swelling (0.4%). The FDA is requiring Ophtec to perform a five-year follow-up study of its implant clients to better examine the post-surgical incidence of cataract development, retinal detachment and also various other ocular diseases.\nThe Craftsmen lens is intended to be a long-term implant.Though it can be gotten rid of surgically, vision could not constantly go back to exactly what it was prior to obtaining the lens. Since it does not affect astigmatism, patients with this problem might still call for glasses.","domain":"optical_engineering"}
{"url":"https://www.iballast.com/electronic-metal-halide.html","date":"2020-04-02T22:52:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370508367.57/warc/CC-MAIN-20200402204908-20200402234908-00390.warc.gz","language_score":0.9121755361557007,"token_count":293,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__196538050","lang":"en","text":"Electronic Metal Halide\nThe lighting industry continues to develop new technologies that are more cost efficient, offer better operating efficiency and improved lighting characteristics. Electronic metal halide ballasts are the latest innovations in the evolution of High Intensity Discharge (HID) technology that deliver those benefits. Electronic metal halide ballasts offer many advantages over traditional metal halide \"coil and core\" ballasts. The biggest advantage of electronic metal halide ballast is the operating efficiency. Electronic metal halide ballast will reduce energy consumption up to 25% over traditional metal halide technologies. Secondly electronic metal halide ballasts significantly reduce installation cost. Traditional metal halide ballast typically consist of a core and coil, ignitor and capacitor that must be wired together while an electronic metal halide comes fully integrated in a single unit with a small footprint. Electronic metal halide ballasts also have also implemented a number of very advance features such as resonance start technology and crest factor control that extend lamp life and provide improved color uniformity. While the product cost of the electronic metal halide ballast are more expensive than traditional metal halide ballasts, costs have been rapidly declining. When reduction in installation cost and operating cost are considered, electronic metal halide ballasts are often a better choice in many installations especially in the 20 watt to 175 watt range. iBallast.com is proud to offer the best manufacturers in electronic metal halide ballasts to our customers.","domain":"optical_engineering"}
{"url":"https://oceanicfishing.com/?product=cobiz-kids-binoculars-10x25-outdoor-binoculars-for-kids-folding-spotting-telescope-for-bird-watching-camping-and-hunting-for-boysgirls-white","date":"2021-07-25T21:06:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151866.98/warc/CC-MAIN-20210725205752-20210725235752-00641.warc.gz","language_score":0.928602397441864,"token_count":159,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__281283918","lang":"en","text":"Cobiz Kids Binoculars, 10×25 Outdoor Binoculars for Kids, Folding Spotting Telescope for Bird Watching, Camping and Hunting for Boys,Girls (White)\nYour search for the best binoculars for your kids is over. this light weight and powerful Binocular is perfect for a child who wishes to observe nature closely, but without disturbing it. They are perfect for all outdoors activities and observing distant objects clearly. They are highly adjustable with a central focus and right dioptre for accurate focus and clear viewing. The folding eye piece is suitable for spectacles too. these binoculars are a perfect gift for a child. When you order these binoculars you get a free neck strap and lens cleaning cloth. buy now and make a child happy!","domain":"optical_engineering"}
{"url":"https://www.lflus.com/odin-gl-tactical-flashlight/","date":"2023-09-21T10:59:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506027.39/warc/CC-MAIN-20230921105806-20230921135806-00071.warc.gz","language_score":0.8987298607826233,"token_count":1246,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__308909101","lang":"en","text":"However, in general, a laser light combo refers to a device that combines a laser sight and a flashlight into a single unit. This type of device is commonly used on firearms for tactical purposes, providing both illumination and a laser aiming point.\nTypically, a laser light combo consists of a flashlight module and a laser module housed together in a compact housing.\nThe Odin GL Tactical Flashlight from olighstore.com provides a bright beam of light for illumination in low-light conditions, while the laser module emits a laser beam that can be used for aiming or targeting. The laser can be either a visible red or green laser or an infrared laser that is only visible with night vision equipment.\nThe activation and control of the laser light combo depend on the specific design and features of the device. It may have different modes and settings, such as constant-on, momentary-on, strobe, or different laser patterns. Some models may also offer adjustable brightness levels or adjustable laser windage and elevation.\nHere are some additional details about laser light combos and how they typically work:\nDesign and Construction\nLaser light combos of Odin GL Tactical Flashlight are designed to be compact and lightweight, allowing them to be easily mounted on firearms, typically on accessory rails such as Picatinny or Weaver rails. They are built to withstand recoil and harsh environments, often featuring durable materials like aluminum or polymer construction.\nLaser Aiming Module\nThe laser module in a laser light combo emits a focused beam of light in a specific wavelength, usually red or green. The laser is aligned with the bore of the firearm, providing an aiming point or dot that helps improve accuracy and target acquisition. The laser may have adjustable windage and elevation settings to fine-tune its alignment with the firearm’s sights.\nThe flashlight module in a laser light combo provides illumination for low-light situations. It typically features high-intensity LEDs (Light Emitting Diodes) that produce a bright, focused beam of light. The flashlight can have different output modes, such as high, low, strobe, or even adjustable brightness levels. Some models may also include a bezel that can be used for striking or self-defense purposes.\nActivation and Controls\nLaser light combos generally have user-friendly controls that allow for easy activation and adjustment of different modes. They may feature ambidextrous switches or buttons, allowing users to operate the device comfortably with either hand.\nThe activation method of Odin GL Tactical Flashlight can vary, including push-button switches, toggle switches, or pressure pads that can be mounted near the firearm’s grip for convenient activation. The runtime of the device will depend on the power source and the intensity of usage.\nWhen using a laser light combo of Odin GL Tactical Flashlight, it is crucial to follow safety guidelines. Always treat the laser beam with care and avoid shining it into anyone’s eyes, as it can cause eye damage or temporary blindness. Additionally, it’s important to familiarize yourself with local regulations regarding the use of laser devices, as some jurisdictions may have restrictions on their use.\nLaser light combos are designed to be easily mounted on firearms. They typically feature a quick-detach or Picatinny/Weaver rail mount, which allows for swift attachment and removal from the firearm. Laser light combos are specifically designed for mounting on firearms. They often utilize mounting systems like Picatinny or M-Lok rails to attach securely to the weapon. This ensures that the combo remains in place during recoil and maintains alignment with the firearm’s bore.\nLaser light combos of Odin GL Tactical Flashlight often provide mechanisms for adjusting the laser’s point of impact. These adjustments allow you to align the laser beam with your firearm’s sights or optics. Windage adjustment controls the horizontal alignment, while elevation adjustment controls the vertical alignment. These adjustments help ensure that the laser’s aiming point accurately corresponds with the bullet’s trajectory.\nLight Output and Modes\nFlashlight modules in laser light combos can offer various light output levels and modes to suit different situations. Higher-end models may feature multiple brightness levels, allowing you to choose the appropriate amount of illumination for the environment.\nFlashlight Function: The flashlight component of a laser light combo operates similarly to a standalone flashlight. It utilizes LED technology to produce a bright and focused beam of light. The flashlight can be turned on and off using the appropriate controls, often found on the body or tail cap of the device.\nLaser Sight Function: Laser sights emit a highly focused beam of laser light, typically red or green, which serves as an aiming aid. The laser sight component of the combo module allows for quick and precise target acquisition. The laser beam can be adjusted for windage and elevation to align with the firearm’s point of impact. Different models may have various activation methods, such as momentary or constant-on switches located on the body or grip of the unit. Some laser light combos also offer different modes, like strobe or pulsating laser beams, for specific tactical applications.\nPower Source: The combo unit is powered by batteries, typically CR123A or rechargeable equivalents. These batteries provide the necessary power to both the flashlight and laser components. The specific battery type and configuration may vary depending on the manufacturer and model.\nIt’s important to note that the features and functionality of laser light combos can vary between different manufacturers and models. Therefore, it’s always recommended to consult the specific product’s documentation or contact the manufacturer for accurate and up-to-date information regarding the Odin GL Tactical Flashlight or any other laser light combo you may be referring to.\nRemember, the information provided here is based on general knowledge about laser light combos. If you have a specific model or brand like the Odin GL Tactical Flashlight, referring to the manufacturer’s documentation or contacting them directly will provide the most accurate and detailed information on how that particular product functions.","domain":"optical_engineering"}
{"url":"https://fewabazar.com/vivitek","date":"2021-10-28T07:28:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588282.80/warc/CC-MAIN-20211028065732-20211028095732-00203.warc.gz","language_score":0.8493635058403015,"token_count":141,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__183869932","lang":"en","text":"Vivitek DW882ST Short Throw Projector (NEW)\nThe DW882ST is designed to cater for the education needs. The DW882ST delivers a 88” diagonal image from less than 1 meter installation distance from the surface. With a brightness of 3,600 ANSI Lumens and contrast ratio of 15,000:1 it delivers a perfect image display.\nThe Vivitek DW832 delivers exceptional digital images with a high degree of vibrancy thanks to 5,000 ANSI lumens of brightness and a contrast ratio of 15,000:1. ... The DW832 features HDMI/MHL and various connectivity options to fully enjoy multimedia applications of any kind","domain":"optical_engineering"}
{"url":"https://cheapnewclothing.com/products/night-vision-telescope-binocular-monocular-40x60-dual-focus-telescopio-green-film-binoculo-optical-prism-hunting-high-quality-tourism-scope/","date":"2021-02-27T04:07:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178358064.34/warc/CC-MAIN-20210227024823-20210227054823-00607.warc.gz","language_score":0.7910335063934326,"token_count":432,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__99326196","lang":"en","text":"🚚 FREE SHIPPING WORLDWIDE!!!\nNight Vision Telescope Binocular Monocular 40X60 Dual Focus Telescopio Green Film Binoculo Optical Prism Hunting High Quality Tourism Scope\n$3.40 – $23.00\n1. Do not attempt to clean the telescope inside or try to remove the telescope\n2. Do not use the telescope to observe the sun directly, this will cause permanent damage to the eyes\nMultiplier: 40X (actual multiple of 10 times)\nExit pupil diameter: 5MM\nNear focus distance: 1.5M\nObjective: 60MM (with edge)\nField of view: 1500M /9500M\nPrism material: BAK4\nPrism system: roof prism\nCoating: upgraded version of high-definition green film\nFocusing mode: eyepiece adjustment\nNet weight: 300G\nWaterproof anti-fog: life waterproof (do not support diving)\n– This product have dual focus capability ( front and back adjustable zoom ).\n– This monocular offers a 40x magnification and a 60mm objective diameter.\n– The fully coated optics, meanwhile, guarantee superior light transmission and brightness, helping you see just about any target, whether youre searching for birds or trying to get a better view of the stage.\n– Non-slip grip.\n– Single hand operation.\n– With a wrist strap on the monocular.\n– Powerful, ultra-compact and ultra-lightweight.\n– Field of view: 22 degree.\nThis 40 x 60 Dual Focus Zoom Optic Lens Monocular Telescope, helping you see just about any target, whether you are searching for birds, hunting, climbing, trying to get a better view of the stage or even at your favorite team sporting event.\n1 x 40x 60 Dual Focus Zoom Optic Lens Monocular Telescope\n1 x Pouch\n1 x Lens Cloth\n1 x Bilingual User Manual in English and Chinese\nThey should explain if it was a night vision or not\nTetszik. Szuper. We like it!","domain":"optical_engineering"}
{"url":"https://jameshfisher.com/2017/10/12/webgl-specular-diffuse-shading/","date":"2023-12-09T11:59:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100909.82/warc/CC-MAIN-20231209103523-20231209133523-00432.warc.gz","language_score":0.7179532051086426,"token_count":344,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__107376493","lang":"en","text":"WebGL shading: diffuse vs. specular\nAbove you see images of a decorative relief. Move the mouse cursor around: it controls the position of a light source. The relief on the left appears matte, while the relief on the right appears shiny.\nThe difference is in the shading model. Here are the key lines of the diffuse and specular models:\n// Diffuse vec4 to_light_dir = normalize(light_pos-surface_pos); float intensity = dot(normal, to_light_dir);\n// Specular vec4 from_light_dir = normalize(surface_pos-light_pos); vec4 reflection_dir = reflect(from_light_dir, normal); vec4 camera_dir = normalize(vec4(0.0, 0.0, 1.0, 0.0)); float intensity = dot(reflection_dir, camera_dir);\nBoth models use the surface normal and the light position to calculate the light intensity at a point on the surface. In the diffuse model, a point is lit to the extent that it faces the light source. In the specular model, a point is lit to the extent that it reflects the light source towards the camera.\nThe specular model uses the built-in function\nvec4 reflect(vec4 I, vec4 N),\nwhich reflects a vector across the normal of a surface.\nIt then uses the dot product to compare this reflection with the camera direction.\nI don’t know what the formal name is for this shading model!\nTagged . All content copyright James Fisher 2017. This post is not associated with my employer.","domain":"optical_engineering"}
{"url":"https://www.ultimatescience.org/incredible-oneplus-concept-one-black/","date":"2020-07-13T20:32:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657146845.98/warc/CC-MAIN-20200713194203-20200713224203-00052.warc.gz","language_score":0.9489717483520508,"token_count":415,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__9827804","lang":"en","text":"While the phone may never see a commercial launch, there is a possibility that the technology will reach other phones in the company. The OnePlus Concept One smartphone that was exhibited at CES had an extravagant orange color.\nAt CES 2020 in Las Vegas, earlier this month, OnePlus introduced its OnePlus Concept One smartphone with exclusive technology that hides the camera module on the smartphone. While the phone may never see a commercial launch, there is a possibility that the technology will reach other phones in the company.\nThe company has now shared a completely black prototype of the OnePlus Concept One smartphone and it looks as or more impressive than the version shown initially.\nThe design of this smartphone prototype is almost the same as that presented earlier this month. The only difference is the choice of color. The model presented is orange, it comes in classic black.\nThe company also says it plans to use the leather back cover design for its future phones.\nKevin Tao of OnePlus responsible for the design team also says that the use of leather on any future device will be done using “environmentally friendly” materials.\nThe OnePlus Concept One has a triple vertical camera system, carefully folded under an electrochromic glass. When current is applied to the glass, it can quickly change from opaque to transparent. This special type of glass is used for the panoramic roof of some luxury cars, aircraft windows and also for buildings.\nThe triple chamber configuration remains invisible under the electrochromic glass. However, when the camera is turned on, the sensors are instantly visible. When the camera application is closed, the triple chambers become invisible again. The company says it only takes 0.7 seconds for the glass to change from transparent to opaque or vice versa.\nIn addition, the glass can also become semi-transparent and can act as a neutral density filter that can assist in capturing better photos in bright sunlight. It consists of two 0.1 mm glass panels, including organic material. The combined thickness of both glasses is only 0.35 mm and uses minimal amounts of energy to operate.","domain":"optical_engineering"}
{"url":"https://oifc.in/best-binocular-in-india/","date":"2023-05-28T20:42:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644506.21/warc/CC-MAIN-20230528182446-20230528212446-00784.warc.gz","language_score":0.94450843334198,"token_count":732,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__180808022","lang":"en","text":"Best Binoculars In India – Buying Guide\nA pair of binoculars is a must-have for all the adventure junkies who love taking part in the activities such as hiking, trekking, bird-watching, jungle safaris, and what not! Various kinds of binoculars could be explored throughout the market and you may pick the best one by considering some of the important points that would help you make the best choice.\nWe have listed down an easy buying guide of the best binoculars in India. You will never go wrong in shopping for your pair of binoculars after considering the following factors:\n- Check the magnification range\nYour prime consideration while buying a pair of binoculars would be its range of magnification. The sole purpose of buying this object is to take a better view of the things that are far from your eyes.\nExperts usually recommend buying a binocular with a standard construction of 10x magnification. The range shall extend somewhere between 7x and 10x respectively. Anything beyond that might demand a tripod.\nConsider the quality and coating of the lens\nThe quality and coating of the lens are other considerations to observe while buying binoculars. A good-quality coating on the lens would reduce the reflection of light.\nThe quality of the lens further makes sure that you could view an aberration-free image without dull colors. A good-quality and good coating of the lens may as well give you a better view in dull lights.\nField of view of the binoculars\nField of view refers to the amount of the picture present in front of you that is visible when you use your binoculars. The field of view or FoV of your binoculars should range between 12 and 10 degrees to provide a better view. This factor further depends upon the overall construction of the device.\nA waterproof binocular for long-term use\nMany people might oversee this consideration; however, the waterproof construction of your pair of binoculars enables you to use it for the long-term. You must consider this factor especially when you carry your binoculars outdoor too often.\nYou will find the best waterproofing technology in the high-end models of binoculars. Even when your pair of binoculars is sunken in water for long hours, it would pose no harm to your device. Alongside this, check if your binoculars are fog-proof as well.\nBuy a lightweight binocular\nYour binocular shouldn’t be too heavy to make it difficult for you to carry them from place to place. The weight of your pair of binoculars depends upon many factors such as the size of the lens, construction of the object, its roof type, etc. A lightweight and compact pair of binoculars should be a go-to option for all the people who want to use them with bare hands. Having said that, the binoculars shouldn’t cause a strain on your eyes such that you could use them for long hours.\nIf you are a frequent user of binoculars, it is suggested not to cut corners and look for some high-end models as such models are full of advanced features. You may as well look for the best leads of binoculars at the online platforms.\nBest Sandwich Makers in India – May, 2023\nBest OTG Ovens in India – May, 2023\nBest Induction Cooktops in India – May, 2023\nBest Gas Stoves in India – May, 2023","domain":"optical_engineering"}
{"url":"https://www.joblife.co.za/jobs/boilermaker_jobs_in_drc-africa.html","date":"2017-09-22T01:43:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818688103.0/warc/CC-MAIN-20170922003402-20170922023402-00135.warc.gz","language_score":0.7955502867698669,"token_count":126,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__108685227","lang":"en","text":"Senior Fibre Optic Cabling Technician -DRC\nProgressive InternationalSouth Africa\nExciting role for a high level senior Fibre Optic Cabling technician Senior Fibre optic Cabling Technician The purpose of this position is: The installation of copper (Cat3, Cat5e and Cat6) cabling, fibre optic network cabling and installation and planning of network cabling infrastructure. The key duties and responsibilities of this position are: Planning of network cabling installations. Compiling of material lists. Install and terminate copper (STP & UTP, Cat 6) network cables. Installation …...apply now!","domain":"optical_engineering"}
{"url":"https://tonybutterworths.com/shop/lights/ugoe-1000-lumen-headlight/","date":"2021-04-11T07:49:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038061562.11/warc/CC-MAIN-20210411055903-20210411085903-00092.warc.gz","language_score":0.8519477248191833,"token_count":86,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__59481840","lang":"en","text":"A very bright bar or helmet mounted light.\n- 1000lm 1x Cree LED Headlight\n- Lightweight aircraft alloy CNC head light body\n- Four light modes: 100%, 50%, 25% and flashing\n- Up to 10hr run time: 100% – 2.5hr, 50% – 5hr, 25% – 10hr, Flashing – 10hr\n- Bar and helmet mount included","domain":"optical_engineering"}
{"url":"https://ptmedicaltechnologies.com/products/storz-cart-with-monitor-arm","date":"2023-02-01T16:16:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499946.80/warc/CC-MAIN-20230201144459-20230201174459-00546.warc.gz","language_score":0.7921271324157715,"token_count":421,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__18352024","lang":"en","text":"- 1 Storz 264305-20 S/N GE261124-P\n- 1 Storz Image 1 HUB 222020-S/NGE261124-P\n- 1 Storz Light Source 20133120 S/N GE616126\n- 1 Storz AIDA 202056-20 S/N NY6001532-T\n- 1 Sony Printer S/N 90491\n- 1 Storz Wide view monitor S/N 114658\n- 1 Storz 20090331 S/N GOOD\n- 1 Storz 22220H61 Camera Head S/NRYR002849-K\n- 1 Storz 22220140 Camera Head S/N CE626379-H\nGeneral description The Image 1 CCU is a revolutionary endoscopic camera control unit for use with, single, three chip and HDImage 1 camera heads. It provides many state-of-the-art features, including:\n- Camera features and functions can be programmed for access via the camera head buttons\n- Reprogrammable circuitry to allow the CCU to reprogram its settings (based on the camera head in use) for an optimal image\n- All-digital circuitry for increased image accuracy, less noise in the image, and no image degradation from camera head to output device\n- Digital image enhancement and fiberoptic endoscope filtering capabilities to increase the level of contrast and definition of the image\n- Options for exposure control, including patented automatic exposure system.\n- High Definition still image capture and Standard Definition still image and video capture.\nA keyboard may be included with the Image 1 CCU to access camera functions and set displays such as time/date and patient information. The Image 1 CCU incorporates the KarlStorz Communication Bus (SCB)system for integration into a complete operating room system. The SCB system allows communication between the Karl Storz devices connected to the system. From this communication, parameters of the SCB devices can be displayed centrally.\n*Sold as a package","domain":"optical_engineering"}
{"url":"https://iriwest.com/product-lines/neospectra/","date":"2023-03-21T10:36:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943695.23/warc/CC-MAIN-20230321095704-20230321125704-00500.warc.gz","language_score":0.9200454354286194,"token_count":115,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__38061841","lang":"en","text":"Compact and low cost Fourier Transform InfraRed (FT-IR) spectral sensors. They deliver the spectral response of the light absorbed by materials for quantification, qualification or identification.\nProviding world class high tech sales and services since 1976. IRIWest brings leading edge technology to market from semiconductors, passive components, electro-mechanical and interconnect, to fully loaded embedded systems. Our partners are best-in-class and our service is second to none. We are the leading source for your design needs.\nProud members of:","domain":"optical_engineering"}
{"url":"https://clinexelcy1987.wixsite.com/automotiveledlights/post/the-advantage-of-led-headlight-bulb","date":"2020-03-30T19:53:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370497301.29/warc/CC-MAIN-20200330181842-20200330211842-00063.warc.gz","language_score":0.9578812122344971,"token_count":335,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__71271970","lang":"en","text":"The advantage of LED headlight bulb\nThere has actually been an appeal of LED light that used in automobile front lights bulbs. This is why many supplier as well as automobile owners has the tendency to change their factory light bulbs or halogen light bulbs into led bulbs. Right here are some reasons you ought to overtake this pattern with the LED headlights benefits.\n1. Energy performance: The LED-based systems brings about the significant power savings for LED bulbs. LED fronts lights are developed with greater toughness and also efficiency when compared with halogen bulbs or the manufacturing facility light bulbs. They can usually eat really reduced amounts of power. The majority of LED lights retrofit remedies made a 60-75% improvement in the general energy efficiency. for the reduced power usage, the financial savings can be greater than 90%.\n2. Lengthy lifespan: The substantial benefits of LED is its long lifespan. LED bulbs have a life expectancy of 15,000 hours optimum. Due to the fact that it is 2-4 times as long as most fluorescent light. It is more than 40 times as long as the ordinary incandescent bulb.\n3. Brightness: LED light bulbs are brighter compared to halogen bulbs. LED fronts lights could create a crisp, tidy, bright white light when driving at evening. LED bulbs can produce a greater lighting from each watt of electricity. Due to the fact that it does not have filaments, this permits LED bulbs to shed cooler than incandescent bulbs, the unneeded warm would not be produced.\nWhen it involves LED light innovation, it is increasingly more generally made use of in the automotive lighting illumination in the led car light manufacturer.","domain":"optical_engineering"}
{"url":"https://nawah-scientific.com/all-services/tests/nanotechnology/particle-size-measurement/","date":"2023-09-29T06:14:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510498.88/warc/CC-MAIN-20230929054611-20230929084611-00789.warc.gz","language_score":0.8889599442481995,"token_count":425,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__230424914","lang":"en","text":"Zetasizer Nano ZS\nThe world’s most widely used particle analyzer!\nThe Zetasizer Nano ZS is a high performance two angle, particle size, zeta potential and molecular weight analyzer. Ideal for the measurement of small volume samples, samples at very low or high concentration and the detection of aggregates. Using Non-Invasive Backscatter optics (NIBS) it has significantly better performance than systems using 90° scattering optics.\nHow is size measured for nanoparticles?\nDynamic Light Scattering (DLS) is used to measure particle size. This technique measures the diffusion of particles moving under Brownian motion, and converts this to size and a size distribution using the Stokes-Einstein relationship. Non-Invasive Back Scatter technology (NIBS) is incorporated to give the highest sensitivity simultaneously with the highest size and concentration range. Automated positioning within the measurement cell provides accurate results for both dilute and concentrated samples.\nHow is zeta potential measured?\nLaser Doppler Micro-electrophoresis is used to measure zeta potential. An electric field is applied to a solution of molecules or a dispersion of particles, which then move with a velocity related to their zeta potential. This velocity is measured using a patented laser interferometric technique called M3-PALS (Phase analysis Light Scattering). This enables the calculation of electrophoretic mobility and from this the zeta potential and zeta potential distribution.\n- Measures particles ranging from 0.3 to 10,000 nanometers\n- Ability to measure wide concentration range – ppb to 40% concentration\n- Zeta potential measurement range: -500 to + 500 mv\n- Molecular weight range: 980Da to 20 MDa\nDo you have a lot of samples? We can offer you a good deal!\n- Pay for 40 samples in advance and take credit for 50 samples (20% discount)\n- Pay for 100 samples in advance and take credit for 135 samples (35% discount)","domain":"optical_engineering"}
{"url":"http://orion-ir.ru/en/production/optical-elements/","date":"2019-02-19T21:33:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247492825.22/warc/CC-MAIN-20190219203410-20190219225410-00083.warc.gz","language_score":0.896321177482605,"token_count":117,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__69469349","lang":"en","text":"Designed for work as part various-purpose fast response laser meters in the optical heterodyning mode.\nDesigned to work in the band of 0.9-1.7 μm.\nThe photodiode is designed to detect radiation in 0.8-1.6 μm spectral band.\nDesigned to detect pulse optical radiation within the wavelength band of 1.0-1.6 μm.\nDesigned to work as part of laser rangefinders to receive pulsed radiation, generates output pulses in transistor-transistor logic (TTL).","domain":"optical_engineering"}
{"url":"http://www.loudable.com/tag/launch-date-india","date":"2013-05-25T03:39:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705407338/warc/CC-MAIN-20130516115647-00001-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.905826210975647,"token_count":787,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__113542142","lang":"en","text":"Nokia has recently launched their 41 Mega pixel camera in Mobile World Congress and this time they have stunned every one with their 41 Mega pixel senor camera with best Carl Zeiss and Nokia algorithm. This is the first time Nokia is coming with Nokia pure view imaging technology. Now when we talk about features of Nokia 808 pure view, it comes with 1.3 gHz single core chip, 512 MB RAM, 16 GB internal memory storage and this is expandable via SD card. It also comes with date speed of HSPA 14.4 MBPS, it comes with 16:9 aspect ratio and HD image and high resolution. The only bad thing about this phone is its Symbian OS and not Windows which is already doing well in market with their Lumia series. It also has HDMI port, headphone jack, micro USB port, it also has Dolby Digital Plus for 5.1 channel surround sound playback.\nNokia 808 Pure View Images Launch Date in India, USA, UK\nNokia 808 Pure View Images Launch Date in UK is second quarter of 2012 so it means it will be sometime around April, 2012. In India it will be around May, 2012 and in USA it will be in March, 2012.\nPrice of Nokia 808 Pure View Images in India, USA, UK\nPrice of Nokia 808 Pure View Images in UK is 450 euros and in USA it will be somewhere around $350 and in India it is going to be somewhere around 40,000 INR.\nNokia 808 Pure View Images\nWE are also embedding press release of Nokia 808 and it is as below,\nNokia Press Release\nNokia 808 PureView ushers in a revolution in smartphone imaging\nNokia sets a new industry standard with the first in a range of high end experiences based on exclusive Nokia PureView imaging technologies.\nBarcelona, Spain – Nokia today ushered in a new era in high-end smartphone imaging with the Nokia 808 PureView. This is the first smartphone to feature Nokia PureView imaging technologies, bringing together high resolution sensors, exclusive Carl Zeiss optics and Nokia developed algorithms, which will support new high-end imaging experiences for future Nokia products.\nThe Nokia 808 PureView features a large, high-resolution 41 megapixel sensor with high-performance Carl Zeiss optics and new pixel oversampling technology. At standard resolutions (2/3, 5 and 8 megapixels) this means the ability to zoom without loss of clarity and capture seven pixels of information, condensing into one pixel for the sharpest images imaginable. At high-resolution (38 megapixel maximum) it means the ability to capture an image, then zoom, reframe, crop and resize afterwards to expose previously unseen levels of details. With superior low-light performance and the ability to save in compact file sizes for sharing in email, MMS, and on social networks, the Nokia 808 PureView makes it possible for anyone to capture professional looking images in any conditions.\nIn addition to superior still imaging technology, the Nokia 808 PureView, also includes full HD 1080p video recording and playback with 4X lossless zoom and the world’s first use of Nokia Rich Recording. Rich Recording enables audio recording at CD-like levels of quality, previously only possible with external microphones. The Nokia 808 PureView also features exclusive Dolby Headphone technology, transforming stereo content into a personal surround sound experience over any headphones and Dolby Digital Plus for 5.1 channel surround sound playback.\n“Nokia PureView imaging technology sets a new industry standard by whatever measure you use,” said Jo Harlow, executive vice president of Nokia Smart Devices. “People will inevitably focus on the 41 megapixel sensor, but the real quantum leap is how the pixels are used to deliver breath-taking image quality at any resolution and the freedom it provides to choose the story you want to tell.”","domain":"optical_engineering"}
{"url":"https://cnec.columbia.edu/christine-p-hendon","date":"2022-01-21T13:48:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303385.49/warc/CC-MAIN-20220121131830-20220121161830-00041.warc.gz","language_score":0.9079222083091736,"token_count":108,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__9111412","lang":"en","text":"People & Labs\nChristine P. Hendon\nChristine Hendon (Fleming) is an Associate Professor in the Department of Electrical Engineering. Her research interests are in developing optical imaging and spectroscopy instruments for applications in cardiac electrophysiology and interventional cardiology. Dr. Hendon received the B.S. degree in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology in 2004, and M.S. and Ph.D. degrees in Biomedical Engineering from Case Western Reserve University, 2007 and 2010.","domain":"optical_engineering"}
{"url":"https://netgoz.net/en/netgoz-relex-smile.html","date":"2022-05-24T00:29:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662562106.58/warc/CC-MAIN-20220523224456-20220524014456-00127.warc.gz","language_score":0.7547884583473206,"token_count":226,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__26112912","lang":"en","text":"Relex Smile Laser Eye Surgery\nMINIMALLY INVASIVE LASER VISION CORRECTION\nReLEx® SMILE® from ZEISS offers the only solution for performing small incision lenticule extraction – SMILE, for short. First performed on a sighted patient more than 10 years ago, today over 1,700 surgeons worldwide practice SMILE. FDA-approved, it equips clinics with an additional Laser Vision Correction option to complete their LVC portfolio.\nWith ReLEx SMILE, a lenticule and a small incision of 2-4 mm is created inside the cornea. The preservation of the upper corneal layers and the possibility for fewer transected nerves may preserve biomechanical stability and reduced the incidence of transient dry eye syndrome.\nBehram Yıldırımşimşek M.D. Relex Smile SURGERY — 4:54 Min.","domain":"optical_engineering"}
{"url":"https://manual.dewesoft.com/x/setupmodule/devices/velodyne-lidar","date":"2024-04-25T00:55:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00295.warc.gz","language_score":0.8553106784820557,"token_count":335,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__100781519","lang":"en","text":"Velodyne Lidar module supports Lidars from Velodyne. It supports three lidar sensors:\n- Possible System configuraitons\n- How to connect the Device and Software Setup\n- Velodyne LIDAR’s possible Synchronization\n- Available Output sections\n- Vizualization of Velodyne LIDAR’s data\n- Autonomous vehicles with real-time perception data that enables safe and reliable operation of autonomous driving and advanced vehicle safety. Achieved range, accuracy and resolution are capable of autonomy level 4 and level 5.\n- High-level ADAS for safe navigation, collision avoidance, lane keeping assist, automatic emergency braking, …\n- Mapping for building highly accurate 3D models of any environment.\n- Smart city for monitoring and measuring conditions areas for pedestrian safety, vehicle traffic, parking space management, …\nVelodyne LIDAR can be used as a standalone system that obtains software synchronization. That means only Velodyne LIDAR sensor is used for the measurement.\nVelodyne LIDAR sensors is usually used together in system with other devices, such as:\n- Dewesoft DAQ devices\n- GNSS devices\nSuch configurations allow the user to perfom measurements on higher level of complexity, but at the same time keeping it simple and completely synchronized inside DewesoftX software. The possibility to gather data from multiple sources gives the user better overview and detailed information about measured systems.","domain":"optical_engineering"}
{"url":"http://titusojyo652.blogdon.net/2-challenges-individuals-do-not-really-comprehend-concerning-lasik-eye-surgical-operation-7132246","date":"2018-12-13T01:17:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824338.6/warc/CC-MAIN-20181213010653-20181213032153-00196.warc.gz","language_score":0.955809473991394,"token_count":890,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__177091257","lang":"en","text":"2 Challenges Individuals Do Not Really Comprehend Concerning LASIK Eye Surgical OperationThe eye can be taken a look at with relative ease as to both its function and its structure. A functional examination includes the capability to move in the orbit and the response of the student to light and accommodation.\nThe function of the eye might be evaluated in several ways. The patient might be asked to recognize illuminated letter or objects of differing sizes on exactly what is understood as the Snellen chart.\nConversely, the examination of the structural part of the eye might be made in numerous ways. Tension within the eyeball is determined by a \"tonometer.\" In specific illness, specifically in glaucoma, the tension in the eyeball is increased markedly.\nHowever, it ought to be well bore in mind that a patient with an eye issue might have other issues too. Typically other physical conditions are main and impact the eye as a consequence. The look of the eye can signal the doctor and the client to difficulties in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nAs a result, one's reliance on sight is emphasized when one deals with a short-lived or possible irreversible loss of this important sense. Hence, when corrective measures are sought, specific forms of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some people are troubled with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another kind of vision correction. The only distinction is that with this type of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of look at here now this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the primary reason that this kind of eye surgery has ended up being well accepted is because the majority of its cases had achieved success.\nIn spite of its success, Learn More Here there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most sensitive part more of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is among the most delicate portions of the eye, the majority of people state that the operation can be really risky.\nTo puts it simply, a basic mistake might almost cause an person's lifetime blindness. It is important to consider many aspects prior to deciding whether LASIK eye surgery is the right restorative procedure one has to undergo.\n2. It is not a ideal procedure\nLASIK eye surgical treatment might fix your vision but it does not always suggest that it can provide you a twenty-twenty. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not always indicate they have ideal vision.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not always be the perfect eye surgical treatment the method most people view it\nAlternatively, the examination of the structural part of the eye might be made in several methods. It ought to be well kept in mind that a patient with an eye issue might have other issues. Frequently other physical conditions are main and affect the eye as a effect. The look of the eye can notify the doctor and the client to troubles in some disturbances of other parts of the body even prior to other signs present themselves.\nLike its tangible counterpart, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://computer-network.co.nz/new_technologies.html","date":"2021-04-10T21:48:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038059348.9/warc/CC-MAIN-20210410210053-20210411000053-00078.warc.gz","language_score":0.9164416790008545,"token_count":209,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__60851002","lang":"en","text":"Tiny Lenses Offer Wide-Angle View\nA novel lens-making technique creates an artificial insect eye, which could lead to better camera lenses.\nA team of researchers at the University of California, Berkeley has figured out how to inexpensively assemble more than 8,000 tiny plastic lenses into a dome-shaped array, mimicking the compound eye of a bee or dragonfly. Their innovative structure can capture light and images across a 180-degree radius -- twice the range of wide-angle \"fish-eye\" lenses.\nThe new fabrication process could be used in small, inexpensive cameras for medical procedures such as endoscopies or video-guided surgery. Or, say the researchers, the array could be integrated into mobile-phone cameras to increase their picture-viewing area. The dome-shaped collection of lenses, described in the current issue of Science, consists of 8,370 individual lenses, each with a diameter of 25 micrometers, packed in a honeycombed pattern.\n(from the science magazine)","domain":"optical_engineering"}
{"url":"https://www.koopeenbeamer.nl/eol-modellen/395-optoma-w505-5060059048380.html","date":"2024-03-03T20:15:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476397.24/warc/CC-MAIN-20240303174631-20240303204631-00785.warc.gz","language_score":0.8475136756896973,"token_count":1246,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__155123165","lang":"en","text":"Optoma W505 (Zonder Lens)\nDe Optoma W505 wordt zonder lens geleverd.\n- 5200 Ansi lumen,\n- Lens shift, Verschillende lenzen,\noff-axis short throw optie\n- Volledig support voor\nCrestron, Extron, AMX,\nPJ-Link and Telnet LAN commands\n- Krachtige image Blending Tools -\n3-axis kleur matching system en\n10x lamp-power standen\n- Geavanceerde features –\nWired Remote, Full 3D Support en\nShort: 0.77:1 (Fixed)\nStandard: 1.54 - 1.93:1 (1.25x zoom)\nLong: 1.93 - 2.89:1 (1.5x zoom)\nSuperb image quality is at the heart of every ProScene product design. At every step, commencing with the incredibly reliable, high resolution WXGA DLP® chip where the image is initially created, via the UHP lamp pulsing technology that fine tunes the colour to exacting standards, through to the precision optics to focus the image on a screen, accuracy and integrity of the image are paramount.\nProScene chose DLP® technology for its image quality and unmatched reliability. The reflective nature of DLP® micro-mirror technology provides highly efficient bright images with great contrast whilst maintaining precise colour accuracy and natural, real-world colour reproduction. For demanding professional applications, the proven reliability of DLP® technology makes it the obvious choice.\nDLP® technology from Texas Instruments® is widely recognised and acclaimed for its unmatched reliability and long lasting image performance. When combined with high brightness and native contrast ratios, it becomes the obvious choice for demanding applications. Independent testing has proven DLP® to be the most reliable of projector technologies. Whilst other technologies may show image quality decline after only a few thousand hours, DLP® technology can remain unchanged over hundreds of thousands of hours.\nTrue WXGA Resolution\nThe 370W UHP lamp provides the highest possible luminance, the essential prerequisite of all highly efficient projectors.\nThese lamps have outstanding brightness, stay brighter for longer, and provide an optimal colour spectrum. In addition, the lamp drivers are specifically tuned for the lamps, ensuring not only optimum operating conditions for every situation, but also provide sophisticated lamp pulsing modes and the assurance that colour can be fine-tuned according to the application.\nClear, Focused Images\nDarkChip3™ technology from Texas Instruments produces a stunning 2000:1 contrast ratio for pin sharp graphics and crystal clear text. Crisper whites, ultra-rich blacks makes images come alive and text easier to read.\nThe W505 incorporates BrilliantColor™ technology to produce stunningly bright images with perfectly balanced life-like colours.\nTo help meet the seemingly limitless challenges of ProAV installations, the W505 provides multiple lens options with zoom and focus adjustment to ensure you can get the image size you require, while a wide lens shift range helps you get the image exactly where you want it.\nAll 3 optional lenses, including the 0.77:1 short throw lens can use the full lens shift range.\nFull Lens Shift\n|1.54 - 1.93:1\n|1.93 - 2.89:1\nThrow distance chart\n|W505 Throw Distance\n|Diagonal Image Size (16:10)\nDICOM simulation mode\nDesigned specifically for larger meeting rooms and lecture theatres, the W505 includes a special DICOMsim mode that has been specifically tuned for viewing greyscale images, perfect for viewing X-rays and scans during medical training.*\n*The W505 is not suitable for use in medical diagnosis.\nUsing the inherent speed of DLP® technology, Optoma Full 3D projectors can output video and images at an astonishing rate of 120Hz, allowing you to show full screen, full colour, stereoscopic 3D. The 3D effect is generated by splitting this signal into two standard video streams, one for each eye. Using DLP® Link™ technology, the 3D glasses synchronise with the image on screen to filter each stream to the correct eye. Your brain then combines the two streams to make them jump into life.\nThe W505 supports multiple 3D formats from various devices such as PC, Blu-ray 3D™, Sony® PS3, Microsoft® Xbox 360 or 3D TV broadcast system.\nEdge Blending Tools\nNo two projectors are completely identical. When performing complex, or even simple edge-blend projects using multiple projectors, it can be difficult to achieve good results if the images do not match. The W505 incorporates the following features to ensure high quality and consistent results.\nThe W505 has a full 3-axis colour matching system, which combined with accurate measurements can create seamless blends every time.\nThe brightness of a projector will vary throughout its life. To correctly match multiple units, the W505 has 10x lamp power steps between 80~100% full brightness.\nThe wired remote connection allows all aspects of the projector to be individually controlled without requiring a line-of-sight to the projector; invaluable when using multiple units during live events.\nSystem integration control\nMultiple W505 can be monitored over LAN and can also provide the user with an email message alert in case an error occurs or a lamp fails or needs to be replaced using Crestron Roomview. The web browser interface and full support for Telnet, Extron’s IP Link, AMX dynamic device discovery and PJ Link protocols, allow almost all aspects of the W505 to be controlled across a network, keeping you in control, wherever you are.\nUltimate controlCut up to 30% from your energy bills using 24-hour automated power scheduling to ensure that projectors power off when not in use.\nCut up to 30% from your engergy bills using 24-hour automated power scheduling to ensure that projectors power off when not in use.","domain":"optical_engineering"}
{"url":"https://www.hatinhibitor.com/2023/08/20/15829/","date":"2024-02-25T12:05:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474595.59/warc/CC-MAIN-20240225103506-20240225133506-00392.warc.gz","language_score":0.9074623584747314,"token_count":817,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__173483014","lang":"en","text":"Perimental 4T1-GL mouse metastatic model is amenable for investigating CTC circulation in vivo, utilizing a novel mountable miniature intravital microscopy system described next.Development of a mountable intravital microscopy (mIVM) systemGhosh et al. have recently introduced a miniature integrated fluorescence microscope, created from mass-producible elements and capable of in vivo high speed (100 Hz) cellular imaging and imaging of capillaries microcirculation.  This miniature intravital microscope incorporates a traditional epifluorescence microscope architecture into a ,two.4 cm3 housing, without any fiber bundle coupling, allowing for imaging of freely moving awake animals. The excitation light supply is actually a blue LED, with excitation light collected on a drum lens, filtered by a 480/40 nm bandpass filter, reflected off a dichroic mirror and delivered to the specimen through a gradient refractive index (GRIN) lens. The fluorescence emitted in the imaged specimen returns through the same path to a 535/50 nm bandpass filter and an achromatic doublet lens that focuses the image onto a CMOS sensor of size 6406480 pixels (Fig. 2A-B, ). Data acquisition is coordinated by a printed circuit board (PCB) in between the microscope and the pc (Fig. 2C, ). The miniature microscope can image at a frame price up to 100 Hz, includes a functioning distance of 150?00 mm, based on the focal plane, and its lateral resolution is two.five?2.eight mm. As a way to image a superficial skin blood vessel within a moving animal, we coupled the miniature microscope to a dorsal skinfold window chamber (DSWC) on the back of a mouse. The DSWC is an aluminum chamber that can be implanted surgically in the skin of the back in the mouse and give access to superficial vessels of skin and smooth muscle layer by way of a protective glass coverslip.  Because the miniature microscope was developed for imaging at a operating distance of 200 mm, we chose a coverslip harboring a thickness of 55?0 mm. To couple the miniature microscope for the DSWC, we created a custom u-shaped holder (Fig 2D, Fig. S1) that serves two functions: (1) to position the miniature microscope inside the x-y plane from the window chamber on leading of a superficial blood vessel of size as much as 150 mm diameter, by rotation about the axis of your DSWC principal screw, (two) to sustain the miniature microscope in Aurora B Inhibitor drug concentrate, by securing its position along the z-axis (determined making use of an x-y-z-stage) through the side screw of your holder (Fig. 2D). The miniature microscope weight is less than two g, the holder machined in lightweight titanium will weigh much less than 1 g, amounting the total weight in the entire mIVM method to much less than 3 g.Statistical analysisResults were expressed as mean six regular error of the mean, unless indicated otherwise. An unpaired, 2-tailed Student’s t test was employed to calculate P values. P values #0.05 had been regarded as HSV-2 Inhibitor Gene ID statistically important and reported as asterisks: for P # 0.05, for P # 0.01, for P # 0.001 and for P # 0.0001.Ethical statementThis study was performed in strict accordance using the suggestions within the Stanford’s Administrative Panel for Laboratory Animal Care (APLAC) and this study was particularly approved by Stanford University’s APLAC board (APLAC #21127, APLAC #11581). All surgeries have been performed below anesthesia and all efforts had been produced to lessen suffering.Outcomes Development of a dual-modality imageable mouse model of breast cancer metastasisWe transfected the murine metastatic carcinoma cell li.","domain":"optical_engineering"}
{"url":"http://www.babyproofernewyork.com/cathode-fluorescent-lamp/","date":"2024-03-01T14:10:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475311.93/warc/CC-MAIN-20240301125520-20240301155520-00467.warc.gz","language_score":0.9309397339820862,"token_count":576,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__140628230","lang":"en","text":"An LCD TV is a type of flat screen TV that uses LCD (Liquid Crystal Display, liquid crystal display) technology, which generates images using a liquid crystal display. Together with the plasma TV, LCD TV practically has displaced cathode ray tubes CRT TV by low thickness, weight and volume small, low consumption, high definition and widescreen format, despite an image quality and response time less than the CRT. Features currently the flat screen TV, either TV LCD or plasma, practically has displaced market grace cathode ray tubes CRT TVs to its limited thickness, weight and volume small, reduced consumption, high resolution picture and a minor damage in sight, despite a lower image quality and speed of response to the CRT. The LCD TV uses a structure of active matrix TFT (Thin-Film Transistor, thin film Transistor), by what this type of TV is also often referred to as TFT-LCD TV, TFT LCD TV or TV TFT. An LCD TV screen is composed of two layers of tinted glass among which lie the pixels, formed by liquid crystal and divided into three sub-pixels of red, green and blue that generate the color of the pixel. Behind the pixel lies the backlight or light source, which in conventional LCD TV are CCFL (Cold Cathode Fluorescent Lamp, cold cathode fluorescent lamp), while in the so-called LED TV are LEDs (Light-Emitting Diode, light-emitting diode). Let’s look at the main features of an LCD TV: weight and dimensions: LCD TV is light and very flat, with a thickness of less than 10 cm high definition: most can receive high definition HD Ready or Full HD signal. Form factor: most common in LCD TV aspect ratio is widescreen format of 16: 9, unlike the relationship 4: 3 CRT.\nScreen size: we can find LCD TV from 15 up to 60 inches in diagonal. Image quality: rate refresh the image, viewing angle, brightness and the delay of an LCD TV provide high image quality. Connections: generally a LCD TV carries all types of connections, both digital (HDMI, DVI) as analogue (SCART, composite video, s-video, VGA). Disadvantages as major disadvantages of LCD TV we can mention: an LCD TV has a native resolution in offers it an optimal result, losing the image quality if you work in another resolution. The range of colors, contrast and image quality is not as good as on a CRT. LCD TV usually has a limited viewing angle. They may have defective transistors that generate stuck pixels (permanently lit), dead (permanently shut down) or weak (less luminosity than the rest). An LCD TV with slow response times can cause ghost images when images are loaded quickly.","domain":"optical_engineering"}
{"url":"http://www.briefingwire.com/pr/eye-care-and-eyewear-eye-care-and-eyewear-of-carrollton-introduces-new-varilux-s-series-progressiv","date":"2013-05-23T09:09:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703057881/warc/CC-MAIN-20130516111737-00003-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8544639945030212,"token_count":485,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__131640106","lang":"en","text":"Eye Care and Eyewear of Carrollton is honored to be an exclusive distributor of the new progressive VARILUX S SERIES lenses. This new series of progressive multifocal lenses fall under Essilor’s highest quality brand, the Varilux brand. These new eyeglass lenses are designed to decrease patient’s problems with poor optics in traditional progressive lenses and are proven to provide limitless vision whatever the situation.\nThe VARILUX S SERIES is composed of 3 exceptional products:\nVarilux S Design™\nBacked by two ground-breaking technologies –– Nanoptix™ Technology and SynchronEyes™ Technology that helps with eliminating dizziness, swim effect, and helps stability of motion for patients who have trouble adapting to progressives. Varilux S Design lenses are at the core the Varilux S Series. Varilux S Design lenses are available in regular and short versions.\nVarilux S Fit™\nVarilux S Fit lenses address limited vision, making eyes work in tandem giving patients edge-to-edge clarity with more intermediate vision, as well as better computer vision with a wider view. Varilux S Fit lenses are the first step towards personalization within the Varilux S Series. Besides offering the advantages of Nanoptix and SynchronEyes Technologies, Varilux S Fit lenses also include position of wear measurements – Pantoscopic tilt, Wrap angle and Vertex distance.\nVarilux S 4D™\nBacked by Nanoptix, SynchronEyes and the ground-breaking 4D Technology, Varilux S 4D lenses are a revolution in lens personalization. Varilux S 4D lenses must be used with Eyecare and Eyewear of Carrollton’s exclusive Visioffice® machine. In addition to position of wear, natural head posture and eye rotation center, Varilux S 4D lenses also include the leading, dominant eye measurement that allows patients to experience faster visual reaction time.\nVarilux progressive lenses are the most technically advanced progressive lenses available. So when wearing Varilux lenses, you’re guaranteed the greatest technology available for treating presbyopia. For more information on the VARILUX S SERIES lenses please come into the Carrollton store or visit us online at http://www.ecew.com/.","domain":"optical_engineering"}
{"url":"http://ruerup-rente24.com/supplementary-materials-supplemental-material-supp_84_8_e02508-17__index-gram-positive-varieties-show-similar-developments-in/","date":"2021-12-02T16:45:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362230.18/warc/CC-MAIN-20211202145130-20211202175130-00146.warc.gz","language_score":0.9347805976867676,"token_count":1045,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__132931931","lang":"en","text":"Supplementary Materials Supplemental material supp_84_8_e02508-17__index. Gram-positive varieties show similar developments in response to a MK-2866 distributor laser beam irradiation dose. Laser beam irradiation could bargain the physiological function of cells, and the amount of damage can be both stress and dosage reliant, ranging from decreased cell development to an entire lack of cell metabolic MK-2866 distributor activity and lastly to physical disintegration. Gram-positive bacterial cells are even more vulnerable than Gram-negative bacterial strains to irradiation-induced harm. By correlating Raman acquisition with single-cell development features straight, we offer evidence of non-destructive features of Raman spectroscopy on specific bacterial cells. Nevertheless, while solid Raman signals can be acquired without leading to cell death, all of the reactions from different strains and from specific cells justifies cautious evaluation of Raman acquisition circumstances if cell viability is crucial. IMPORTANCE In Raman spectroscopy, the use of powerful monochromatic light in laser-based systems facilitates the detection of inherently weak signals. This allows environmentally and clinically relevant microorganisms to be measured at the single-cell level. The significance of being able to perform Raman measurement is that, unlike label-based fluorescence techniques, it provides a fingerprint that is specific to the identity and state of any (unlabeled) sample. Thus, it has emerged as a powerful method for studying living cells under physiological and environmental conditions. However, the laser’s high power also has the potential to kill bacteria, which leads to concerns. The research presented here is a quantitative evaluation that provides a generic platform MK-2866 distributor and methodology to evaluate the effects of laser irradiation on individual bacterial cells. Furthermore, it illustrates this by determining the conditions required to nondestructively measure the spectra of representative bacteria from several different groups. knowledge. Instead, it provides a full spectrum of Raman fingerprints specific to the intrinsic chemical composition of a sample and thus has emerged as a powerful label-free method for studying living cells directly under their physiological conditions (5). To date, Raman spectroscopy has been widely used for identifying cell phenotypes and functional changes caused by cell processes such as MK-2866 distributor aging and differentiation (3, 6,C8). Within the last 10 years, Raman spectroscopy is becoming very important to learning environmental and medical microorganisms significantly, nearly all that are not cultivable in the lab and are mainly unfamiliar (4, 9). Identical to numerous additional spectroscopic and bioimaging methods, most lasers useful CARMA1 for Raman spectroscopy are in the near-infrared and visible ranges. The discussion between laser beam light and a molecule generates inelastic spread light, i.e., light having a different wavelength compared to that from the event light, providing rise to a distinctive Raman change. Since only around 1 in 106 to 1010 event photons generate inelastic spread light, intrinsic Raman indicators are inherently fragile (10), and discovering them necessitates the usage of high irradiation energy. Nevertheless, intense laser beam irradiation may damage natural samples and even has been utilized to destroy bacterias for the purpose of disinfection (11, 12). In the reported books, there are several discrepancies between your observed nondestructive/harmful effects due to similar circumstances applied to bacterial cells. For example, in addition to killing cells, regrowth of bacterial colonies has been found to occur after large doses of laser irradiation (12); in some cases, low-power laser irradiation has also been found to promote bacterial proliferation (13). Surprisingly, studies of laser irradiation on individual bacterial cells have been very limited, despite the well-known fact that there is heterogeneity even within an isogenic inhabitants (14). Here, we exploit single-cell microfluidics for the quantitative evaluation of laser irradiation in bacterial cell destiny and growth. The approach allows real-time tracking from the development of specific cells and therefore reveals concealed heterogeneities within a inhabitants (14,C17). In this study, we MK-2866 distributor used a 532-nm laser as the light source because of its wide use in Raman spectroscopy as well as its potential to damage living cells (11, 18). To investigate differences between species, representative Gram-negative (JM109 and ADP1) and Gram-positive (168 and sp. RC291) bacterial strains were investigated. These strains were chosen because they are widely used in microbiology and therefore provide well-characterized systems to investigate the effects of laser irradiation. Considering the requirement to maintain cell function throughout Raman spectroscopic measurements, the growth characteristics of individual cells exposed to a wide range of irradiation conditions were quantified and correlated with their Raman spectra. RESULTS Real-time monitoring of cell response to laser irradiation. The monolayer lifestyle of cells inside the microfluidic gadget (Fig. 1) allowed both a concentrated irradiation of known power and length of time to be employed to randomly preferred specific cells and their following development to be.","domain":"optical_engineering"}
{"url":"https://mosevic.com/pages/lenses","date":"2023-12-04T17:04:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00795.warc.gz","language_score":0.9085113406181335,"token_count":231,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__35347513","lang":"en","text":"Zeiss Polarised Lenses\nWe use polarised lenses from Zeiss, that offer 100% UV protection, in two tints.\nThis is a warm lens with a gradient that is darker on the top than on the bottom. This lens makes everything look warm.\nThis is a green base lens with a semi mirrored coating that reflects tones of green and blue. Zeiss refer to this kind of coating as 'triflection'. This lens makes everything look a cool green.\nWe use CR-39 which is a lightweight material commonly used to make lenses. Some people ask for glass lenses, but we find these are too heavy and we’d rather use a lightweight material.\nFor customers wanting their prescription lenses fitted we offer a Frame Only option.\nIn this instance, we will fit the frames with ‘dummy lenses’. When you receive your order, you can take your glasses to your optician who will replace the dummy lenses with your own prescription lenses.\nFor all Frame Only orders we provide a set of instructions with the order which you can give your optician when they replace the lenses for you.","domain":"optical_engineering"}
{"url":"http://blog.williamsonir.com/","date":"2017-01-19T02:08:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-04/segments/1484560280425.43/warc/CC-MAIN-20170116095120-00275-ip-10-171-10-70.ec2.internal.warc.gz","language_score":0.9017598628997803,"token_count":308,"dump":"CC-MAIN-2017-04","global_id":"webtext-fineweb__CC-MAIN-2017-04__0__261045815","lang":"en","text":"Williamson Short-Wavelength Advantage\nInfrared pyrometers rely on making a reading based on the amount of energy collected. The amount of energy collected can be affected by emissivity variance and optical obstructions. Selecting the shortest possible wavelength helps to eliminate variables such as emissivity variation and optical obstruction. Being less sensitive to these variables ensures for a more accurate reading compared to a general purpose long-wavelength sensor.Emissivity Variance\nEvery object emits infrared energy proportional to its temperature. Infrared pyrometers collect the infrared energy emitted by an object and convert it into a temperature value. Emissivity is the percent of energy emitted by an object compared to the theoretical amount of infrared energy emitted by a perfect emitter at the same temperature. The amount of energy emitted is a function of both temperature and emissivity.\nTherefore, the emissivity of a measured target has a direct correlation to the energy reading of a pyrometer. Emissivity varies due to changes in material, surface texture, degree of oxidation, micro structure or surface contamination. The emissivity of a material can also vary at different wavelengths. The graph to the right shows that selecting the shortest possible wavelength will result in smaller errors due to emissivity variance. In fact, short-wavelength sensors can be 4-20 times less sensitive to emissivity variation compared to long-wavelength sensors. By reducing the errors caused by emissivity variation short wavelength sensors produce a more accurate and repeatable reading.","domain":"optical_engineering"}
{"url":"http://www.insideastronomy.com/index.php?/topic/303-finally-i-always-dreamed-of-this/?forceDownload=1&_k=880ea6a14ea49e853634fbdc5015a024","date":"2020-11-24T01:39:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141169606.2/warc/CC-MAIN-20201124000351-20201124030351-00432.warc.gz","language_score":0.8688662052154541,"token_count":569,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__78206787","lang":"en","text":"The revolutionary technology in the award-winning SkyProdigy telescope is now available for almost every Celestron computerized telescope.\nTorrance, CA (January 8, 2013) – Celestron, the world’s #1 telescope maker, is excited to unveil the StarSense Accessory, a revolutionary new telescope accessory that turns your telescope into a fully-automated tour guide of the universe.\nBefore StarSense, using a computerized telescope required a lengthy alignment process of finding and centering at least two bright stars in the telescope’s eyepiece. But StarSense automatically aligns itself, no user input needed. With StarSense, you become an instant astronomer—even if you’ve never used a telescope before.\nStarSense technology debuted in 2011 with Celestron’s SkyProdigy telescope line. SkyProdigy captured multiple awards that year, including Popular Mechanics’ Breakthrough Product Award and the esteemed Innovations Award at the 2011 International CES.\nAs SkyProdigy amassed accolades, Celestron engineers were already working to bring StarSense technology to other Celestron computerized telescopes. Now, with the StarSense Accessory, that dream is a reality. StarSense is not only compatible with all of Celestron’s current computerized telescope models, but backwards compatible with many older models as well.\nThe StarSense Accessory includes a small digital camera that attaches to the telescope’s optical tube, along with a specialized hand controller. Just set up the accessory, push the Align button on the hand controller, and StarSense starts capturing and comparing images of the night sky against its internal database of 40,000 celestial objects. In about three minutes, StarSense will gather enough information to triangulate its position and align itself. Then, press the Sky Tour button: StarSense will automatically slew to all the best stars, planets, galaxies, and more based on your exact time and location.\nEven the most advanced telescope users will love using the affordable StarSense Accessory. StarSense replaces expensive software used for Advanced Mount Modeling, providing superior pointing accuracy from horizon to horizon. Users can add as many calibration stars as desired to give their telescope mount a new level of accuracy.\nStarSense will be on display, along with all of Celestron’s new 2013 lineup, during the 2013 International CES, January 8-11, 2013, at the Las Vegas Convention Center. Visit Celestron in Central Hall, booth #14842 for a complete review of StarSense and all of our 2013 new product releases.\nIF THIS WORKS ON SKYWATCHER MOUNTS WHICH ARE KNOWN FOR TAKING 15-20 MIN\nALIGNMENT I CAN REALLY SE THIS SELLING BIG TIME ITS NOT JUST FOR LEARNERS.","domain":"optical_engineering"}
{"url":"https://starsuntold.com/how-to-choose-a-telescope-for-viewing-planets-astronomy-notes","date":"2023-11-30T08:20:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100172.28/warc/CC-MAIN-20231130062948-20231130092948-00327.warc.gz","language_score":0.9533488154411316,"token_count":1143,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__196376715","lang":"en","text":"Telescopes can be divided into three major categories. Of these, optical telescopes are the simplest type of telescope, meaning they rely on optics to magnify a view, while more advanced types can have mirrors.\nThe most basic types of a telescope to choose are telescopes for beginners. These have easy-to-use controls and allow the user to observe objects up close without leaving the viewing area.\nReflector telescopes offer more control over the viewing, and magnification, as well as exposure to a softer light. Also, these types of telescopes are usually less expensive to purchase. However, because of their nature, these telescopes may require additional power to focus properly on a particular object.\nTube and Table Top telescopes are large telescopes that are used in laboratories and observatories. While smaller, tube telescopes do not have as many options as tabletop telescopes, because the amount of light they are capable of producing is limited by their size. This type of telescope is extremely detailed and offers a very wide viewing angle.\nModern telescopes often include a combination of all three types, but there are still a few of the simpler types that do not feature multiple types. In addition, some may require multiple power sources to operate properly. Before deciding which type of telescope is best for you, it is important to think about the types of objects you will be observing.\nEasy to use. Telescopes should have simple controls and easy to understand menus and modes. Additionally, make sure that there are no overly complicated adjustments, as this can cause a lot of frustration and even eye strain. You can also increase the view of quality and magnification by choosing good telescope eyepiece for viewing planets.\nEasy to use. They should also have a wide viewing angle, which allows you to see the whole sky at once. Your eyes may need to adjust to the different viewing angles, so be sure you understand what is required in advance.\nProper magnification. You should be able to use your telescope to magnify the object you want to view.\nSelect accessories. Many telescopes come with accessories, such as a hand controller or collimation cap, so make sure you select those items before spending your money.\nUnlike reflectors, telescopes used for astronomy only focus on the surface of the lens instead of the entire optical lenses. Because of this, most of these telescopes do not feature computer controls for focusing the lens itself.\nAll three basic types of telescopes are good for beginners. If you find one with an easier-to-use interface, more magnification, or better magnification, that’s all you really need to begin observing.\nFor a beginner, the choice between an eyepiece telescope and a Barlow telescope can be a very difficult one. Because of their large size, they require a huge amount of space in which to work and are not recommended for beginners. If you do not have enough space, a Barlow can be your only option.\nThe Barlow telescope is only useful if you are looking at celestial objects and are using a two-way monitor with some kind of tripod. However, it is still the cheapest way to view celestial objects. This is because with a Barlow telescope, there is a viewing port that allows you to see celestial objects as well as in a small spot on the ground.\nIn order to get the most from your Barlow telescope, you will have to buy it with a good telescope mount. The telescope mount will contain four to six tubes so that it can be turned to any direction you want.\nWhen buying a new telescope, it is important to consider the type of housing that comes with it. A good telescope that has a good housing is an essential part of the telescope. You should also buy a stable telescope mount since it will help in keeping the telescope stable during long observation sessions. It is important to make sure that you get a telescope that can support the telescope bar.\nThere are many online stores that sell a Barlow telescope and you will find one that suits your needs if you go to their website. You will be able to compare prices and choose the best product for your requirements.\nAll Telescopes offer astronomy notes that are well informative. These features allow you to read a series of documents about astronomy so that you can gain experience and knowledge about science.\nAstronomy notes should always be written on paper since it can fade when exposed to direct sunlight. To prevent this, many manufacturers print their astronomy notes on a computer printer or digital display, so you don’t have to worry about this.\nThe teaching of astronomy is just one of the many options that you can choose from when you start looking for a telescope. Other options are the use of a telescope and a tripod and learning the stars through a telescope, and learning about the Earth through the telescope.\nYou can see the sky and study it through a telescope, even though you are going to the nights in the atmosphere where atmospheric pressure will be lower than usual. This is the best time to observe the stars and planets in the solar system and the moons of Jupiter and Saturn.\nTo prevent the image distortion in the telescope, you need to study the optical performance and document what you found out. Even if you know what the object you saw in the telescope is, you will be able to find more information by using this tool.\nWhen you’re ready to find the right telescope, the first thing you should do is to compare the prices of different types of telescopes that are available. The second thing you need to do is to make a list of the telescope types you want to purchase and the reason for why you are going to purchase them.","domain":"optical_engineering"}
{"url":"https://www.bmxchile.cl/auto-focus-lens-mount-adapter-ring-extension-tube/","date":"2021-01-22T15:44:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703530835.37/warc/CC-MAIN-20210122144404-20210122174404-00509.warc.gz","language_score":0.7523918747901917,"token_count":197,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__267050765","lang":"en","text":"Lens mount adapter ring replacement for Canon EF/ EF-S series lenses to EOS-M cameras.\nThe lens mount adapter ring can increase compatible lens choices for your camera, very practical.\nSupports automatic focus function, providing your with better shooting performance.\nHigh precision contact points, stable signal transmission, and easy to install with the red dot.\nWith 1/4 inch screw hole at the bottom, can be installed on the tripod or other fixed bracket easily.\nMaterial: Plastic + Metal\nFocus Mode: Auto Focus\nScrew Hole: 1/4 inch\nItem Size: 7.2 * 6.8 * 3cm/ 2.8 * 2.7 * 1.2in\nItem Weight: 56g/ 2oz(excluding caps)\nPackage Size: 8 * 8 * 5cm/ 3.1 * 1.2 * 2in\nPackage Weight: 106g/ 3.7oz\n1 * Lens Mount Adapter with caps","domain":"optical_engineering"}
{"url":"http://www.ayeled.com/led-controller/led-controller-novastar","date":"2021-06-20T09:51:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487660269.75/warc/CC-MAIN-20210620084505-20210620114505-00626.warc.gz","language_score":0.7567445039749146,"token_count":426,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__89538535","lang":"en","text":"Novastar,a global leading LED display solution provider,designs and develops LED display control solutions for a variety of market applications including entertainment,digital signage and rental.\nNOVA LED control software Remote technical debugging.We\nalso provide professional services t..\nNova multi-function card MFN300Nova M3 MFN300 is a multi-function card with a variety of auxiliaryfu..\nproduct pictureFeatureMRV210 is a 24 group data receiving card of nova M3 series. Its functions are ..\nNova receiving card MRV330-1 Feature The re..\nNova receiving card MRV336 Feature  ..\nThe A7s is a small size high end receiving card launched by nova with a single 512×256 (PWM IC) pixe..\nThe A9s is a small, full-featured high-end receiver card from nova with 512×512 (PWM IC) pixels on a..\nReceiving Card A5sResolution ：320×256RGB data output ：32MOM Interface ：supportPiexl level color and ..\nNovastar K4U LED Video ControllerK4u is Nova's professional LED display controller, which has powerf..\nAmbient Temperature Sensor MTH310 Description:Detect ambient temperature.Multi-function card su..\nFeaturesNS060 is an optical probe for accessories with the following characteristics:1. Monitor ambi..\n1. 1 DVI interface for video input.2. USB interface for instruction communication.3. Audio input int..\nNovastar MCTRL500 controller1) Maximum support resolution 2048x1152 or 1920x1200;2) RS232 cont..\nNovastar MCTRL500 controllerOur ServicesWe will ship the items within 1-3 working days after t..\nDescriptionNovastar MCTRL600 LED display controller 1) HDMI/DVI input;2) HDMI/extermal audio input;3..\nShowing 1 to 15 of 31 (3 Pages)","domain":"optical_engineering"}
{"url":"https://bmebd.com/product/mantra-mfs500-biometric-fingerprint-scanner","date":"2023-12-10T14:34:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102469.83/warc/CC-MAIN-20231210123756-20231210153756-00098.warc.gz","language_score":0.8897712230682373,"token_count":182,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__3183511","lang":"en","text":"MFS500 is a high-quality fingerprint scanner utilized for accurate fingerprint authentication process. MFS500 is devised with an optical scratch free sensor for efficient recognition of poor quality fingerprint is a high-quality fingerprint scanner devised with an optical scratch free sensor for efficient recognition of poor quality fingerprint. The device is used for the identification and authentication of an individual. Fingerprint scanner or reader is easy to install, easy to use, secure and reliable device for identifying and verifying a person based on his/her fingerprint impression that eliminaties the need of remembering passwords or PINs. Our Biometric Fingerprint Scanner MFS500 is an accurate, safe and reliable device for verification, identification and authentication of an individual, which captures the fingerprint images in a faster and reliable manner. Our fingerprint scanner is elegantly designed and equipped with the fingerprint recognition module to record fingerprint images of an individual for specific premises or resources.","domain":"optical_engineering"}
{"url":"https://opticsidea.com/plossl-vs-kellner/","date":"2024-03-01T11:48:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00481.warc.gz","language_score":0.926175594329834,"token_count":1442,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__200568779","lang":"en","text":"In the world of lenses and eyepieces, it can be confusing to pick the right one. Both of the eyepieces work wonderfully.\nBoth brands of eyepieces work perfectly with your telescope or microscope. But Plossl eyepieces are better than Kellner ones. Plossl eyepieces have a better FOV and better eye relief. On the other hand, Kellner’s has more lenses and is inexpensive. At the same time, Plossl is a bit more expensive.\nWe have given both short and detailed comparisons of the factors of both brands. If you are considering purchasing one, this article can guide you in the right direction.\nThe Plossl and Kellner eyepieces are made to see the wonders of the night sky. But there are some differences between the two eyepieces. However, you need to know how to use an eyepiece on a telescope.\nIn the table below, we have presented the key factors of each of the eyepieces. There are some similarities and differences between these two products. Could you check the key elements?\n|No. of Lenses\n|Type of Lens\n|Field of View\n|13mm Focal Length = 28mm\n|20mm Focal Length = 28mm\n|Not so Expensive\nThese are the key differences. As we said, you can see some basic differences between the two. Also there are some similarities as well.\nNow that you know why each eyepiece differs, let’s get down to the details. Below you will find detailed information about each of the factors. We have presented elements of both.\nNumber of Lenses\nThe number of lenses matters when it comes to eliminating the chromatic effect. The chromatin effect is when you see a glare while looking through the eyepiece.\nAlthough the number of lenses doesn’t always determine the magnification level, you can use Barlow or Powermate lenses to get a better magnification Barlow Barlow or Powermate lenses.\nAlso, multiple lenses are used in the case of better magnification. The Plossl eyepiece has three lenses, whereas the Kellner has 4. So, Kellner is a better option if you are looking for better magnification.\nWinner: In the case of having more lenses, Kellner is the clear winner.\nType of Lenses\nIn both of the eyepieces, achromatic lenses have been used. The job of this lens is to reduce the chromatic effect. This also eliminates the spherical aberration when looking through the lens.\nThe lens corrects the wavelength of light. Usually, the red and blue wavelengths are converted. In the cases of Plossl and Kellner, both brands use this type to eliminate the chromatic effect.\nWinner: In this level, it is a draw between the two eyepieces.\nField of View\nThe field of view is the maximum area you can see through the eyepiece. The field of view can also be labeled as FOV. The term field of view is used in cameras, binoculars, and all the places where lenses are used.\nHere, the Plossl eyepiece has a 35-50 field of view. That means the angle will be measured at the point where the eye sits. So, the field of view is wide at a 35 to a 50-degree grade.\nBut this does mean the magnification is maximized at a point. So you can see further with greater focus. Although, how far you can look through a telescope depends on other factors.\nOn the other hand, we have Kellner, which has 50 to 56 degrees of field of view. So much larger surface can be observed with this eyepiece.\nWinner: The clear winner, in this case, is the Kellner eyepiece.\nThe term eye relief is used in optical instruments. Eye relief means the distance of the last part of the eyepiece, which the user’s eye the full view.\nThe lower the focal length, the light the magnification of the eyepiece. So, the Plossl eyepiece has a 13mm focal length. Usually, eyepieces come on 20 to 25mm of focal length.\nOn the other hand, we have the Kellner eyepiece. It has a 20mm focal length. Which is high than Plossl, but that means it has lesser magnification.\nWinner: Here, the Plossl is the clear winner.\nPrice is a big factor regardless of a product’s quality or bad. Cause price is what determines the value of the products.\nPlossl is Cheaper than Kellner eyepieces. Usually, you can find Plossl eyepieces for 30 to 300 dollars.\nOn the other hand, we have the Kellner eyepieces. Kellner eyepieces are considered better products, but they do cost more. Kellner’s eye can cost around 20 to 200 apiece.\nIf you are thinking to buy Plossl or Kellner eyepieces, check the link below. You never know when can they go on sale. We always update the price listed below.\nThese are the best deals you can get on these eyepieces.\nThat’s all the factors of both of the eyepieces.\nIt all comes to which one is better. So, Plossl eyepieces are better than Kellner eyepieces. But they are substantially more expensive.\nPlossl eyepieces are the more expensive cause, their more complex and have better quality. But there are good and bad models available from both brands. So, the purchase decision depends on your budget.\nIf you are a professional, Plossl might be a better option for you. But, for beginners, Kellners are good to be with.\nQuestions: What are the differences between eyepiece and objective lens?\nAnswers: The objective lens shows the real image to the eyepiece. This lens sits close to the object. On the other hand, the eyepiece lens sits close to the eye.\nQuestion: What is the purpose of an eyepiece?\nAnswer: The purpose of the eyepiece is to magnify the image which sits close to the lens. It projects and magnifies the real image to the eye sensor.\nQuestion: Is using an eyepiece mandatory in a telescope?\nAnswer: Using an eyepiece is mandatory for telescopes. The eyepiece puts the object you are viewing in focus. It also magnifies the object you are looking at.\nThat is everything you need to know about, plossl vs kellner. Both of the eyepieces are wonderful.\nBoth professionals and beginners can use the eyepieces to analyze their subject.\nHave fun observing!","domain":"optical_engineering"}
{"url":"http://www.autocarhire.com/travelblog/featured/audis-new-lighting-autonomous-driving-tech/","date":"2017-03-31T00:37:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218205046.28/warc/CC-MAIN-20170322213005-00096-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9375840425491333,"token_count":544,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__66253226","lang":"en","text":"Audi’s new lighting and autonomous driving tech\nAt the recently held 2013 International Consumer Electronic Show – CES – the people over at Audi have lifted the lid on some of their latest tech: an autonomous driving system and some rather innovative lighting features.\nThe autonomous technology Audi has unveiled is called ‘piloted driving’ and was designed to take control over the car’s acceleration, braking and steering functions when faced with congested traffic at speeds up to 60 km/h, thus freeing the driver to focus on other tasks.\nThe system builds upon Audi’s already existing adaptive cruise control technology, adding two radar sensors, a wide-angle camera, eight ultrasonic sensors and a laser scanner – all of which are meant to monitor the vehicle’s surroundings in order to keep it safely on track.\nAnother extra feature that comes with the piloted driving system is an autonomous parking function which pretty much allows the driver to exit the vehicle in front of a garage or a tight parking spot and then he or she can have the car park itself via the key fob or a smartphone. Once the car reaches its final position, it will shut off the engine, deactivate the ignition, lock the doors and send a confirmation message to the driver.\nWhen it comes to vehicle lighting technologies, Audi has always played a leading role, being something of a pioneer, and they are sticking to that reputation with their new features based on laser lights and OLEDs – Organic Light-Emitting Diodes.\nIn good visibility the tail-light technology will project a fan-shaped red line onto the road surface so as to tell the driver behind to maintain a safe travelling distance. In fog or rain, this laser beam will be projected onto the water droplets, forming the shape of a large, floating warning triangle.\nAs to the use of OLEDs, Audi consider that they have the potential to create a ‘swarm’ layout, with Audi engineers aiming to transform the rear of their vehicle into a continuous light surface.\nThe technologies that they have displayed at CES are seeing continuous research and development, we can only expect that Audi will continue to enhance the safety of their production vehicles as a result of this in the coming decade.\nTags: adaptive cruise control\n, autonomous technology\n, confirmation message\n, consumer electronic show\n, continuous light\n, control technology\n, innovative lighting\n, laser lights\n, laser scanner\n, light technology\n, lighting technologies\n, organic light emitting diodes\n, radar sensors\n, road surface\n, ultrasonic sensors\n, vehicle lighting\n, warning triangle\n, water droplets\n, wide angle camera","domain":"optical_engineering"}
{"url":"https://bydafanudy.innovationoptimiser.com/first-european-conference-on-optical-fibre-communication-16-18-september-1975-book-9994xo.php","date":"2021-10-18T10:29:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585201.94/warc/CC-MAIN-20211018093606-20211018123606-00450.warc.gz","language_score":0.8663288354873657,"token_count":1817,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__249059144","lang":"en","text":"2 edition of First European Conference on Optical Fibre Communication, 16-18 September 1975 found in the catalog.\nFirst European Conference on Optical Fibre Communication, 16-18 September 1975\nEuropean Conference on Optical Fibre Communication London 1975.\nIncludes bibliographical references.\n|Statement||organised by the Electronics Division of the Institution of Electrical Engineers in association with the European Physical Society ... [et al.].|\n|Series||IEE conference publication ; no. 132|\n|Contributions||Institution of Electrical Engineers. Electronics Division., European Physical Society.|\n|LC Classifications||TK5103.59 .E88 1975|\n|The Physical Object|\n|Pagination||xi, 209 p. :|\n|Number of Pages||209|\n|LC Control Number||76354294|\nCannes, France September IEEE Catalog Number: ISBN: CFPPOD European Conference on Optical CommunicationFile Size: KB. The 39th European Conference and Exhibition on Optical Communication ECOC will be the largest optical communication event in Europe for and will provide a forum for new results and developments. Technical Scope: Sub committee 1 - Fibres, Fibre .\nTitle Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference Desc:Proceedings of a meeting held February , San Diego, California. Prod#:CFP08OFC-POD ISBN Pages:3, (8 Vols) Format:Softcover Notes: Authorized distributor of all IEEE proceedings TOC:View Table of Contents Publ:Institute of Electrical and Electronics Engineers . \"A novel optical fibre telemetry highway\", Presented at the 1st European Conference on Optical Fibre Communication, September , London, England, IEE Conference .\nSince the discovery of photosensitivity in optical fibers there has been great interest in the fabrication of Bragg gratings within the core of a fiber. The ability to inscribe intracore Bragg gratings in these photosensitive fibers has revolutionized the field of telecommunications and optical fiber based sensor technology. Over the last few years, the number of researchers investigating Cited by: On behalf of the International Cooperative of Plastic Optical Fibers (ICPOF) we are pleased to announce the 26 th International Conference on Plastic Optical Fibres, POF, to be held at the picturesque city of Aveiro, Portugal, from 13 to 15 of September. The conference is the leading event in POF research, application and industrial activities, where scientists and engineers from both.\nDirectory of data files\nÂm nhạc cồng chiêng Tây Nguyên\nLearn-Ed Nations Inventory\nNew advertising research technologies, techniques, and applications--II\nMedical Insurance Made Easy\nThe Scar of David.\nIdeal of the vocation of a poet\nThe poets craft\nThe princess troll\nAfrica-Europe Summit under the aegis of the OAU and the EU\nResource Materials for the Curriculum\nEuropean Conference on Optical Fibre Communication, 1st, London, England, September, Proceedings Abstract The papers deal with recent developments in the design of optical fibers and optical communications systems.\nThis year the event comes to London, taking place at the ICC London ExCeL from 23 to 25 September (conference from 22 to 26 September) and will once again provide an unrivalled opportunity for manufacturers, suppliers and service providers of optical communications products and services to come 16-18 September 1975 book to meet and network with top decision-makers from across the industry.\nThe 45th European Conference on Optical Communication (ECOC ) offers the chance to hear about the latest advances in optical communication technologies.\nThe European Conference on Optical Communication (ECOC) is the largest conference on optical communication in Europe and one of the largest and most prestigious events in this field worldwide. In September the 42nd edition of ECOC w llitake place in. The European Conference on Optical Communication (ECOC) is the largest conference on optical communication in Europe and one of the largest and most prestigious events in this field worldwide.\nIn September the 42nd edition of ECOC will take place in File Size: KB. Thursday 26 September Room A Room B Room C Room D Room E Room F ThA Optical Packet /Burst Switching I ThB Lasers ThC Subsystems for SDM ThD Coherent Systems Modeling ThE Spectrum Allocation and Defragmentation ThF Short Range Systems Coffee Break ThA Optical Packet /Burst Switching II ThB Devices for Optical Processing.\nWelcome to the Optical Fiber Communication Conference and Exhibition On behalf of the many volunteers and professionals organizing OFCit is our sincere pleasure to welcome you to Anaheim.\nOFC is the foremost meeting in optical communica-tions and networking, and this year’s conference continues the tradition of providing an. 8–12 March San Diego, California, United States sessions, papers 3–7 March San Diego, California, United States sessions, papers 11–15 March San Diego, California, United States sessions, papers 19–23 March Los Angeles, California, United States.\n5th International Conference on Optical Communication Systems. 08 September to 10 September Connected Britain. London, UK. 23 September to 24 September A look at building future-ready terrestrial networks with hybrid optical fibre cables, with Sergei Makovejs and Matthew Guinan.\nFTTH, FTTx. Various optical fiber modes are explained in fig 2. Fig Methods of Optical Fiber  III. EVOLUTION OF FIBER OPTICS COMMUNICATION: Inoptical fiber was 1st urban by Corning Glass Works.\nat the same time, GaAs semiconductor lasers were conjointly established for transferring lightweight by fiber optic cables. In the 1st. European Conference and Exhibition on Optical Communication inexplore presented research, speakers and authors of ECOC The International Conference on Optical Fibre Sensors (OFS), established inis acknowledged as the world’s leading conference on all topics related to photonic sensing technologies.\nOFS provides a forum for reporting and exchanging ideas on the latest advances in research and development on fiber-optic and photonic sensing. 44 th EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION. Roma, Italy SeptemberEternally Rome - Play. Conference Photo & Video. Submission System.\nThe Recent Trends in Fibre Optic Communication Eng. ISSA OBAID ALORF The first telephone service via optical was developed by AT&T in and the first transatlantic telecommunication (TAT) fibre optic communication cable TAT-8 was deployed. The erbium doped fibre amplifier (EDFA) was developed in the University of Southampton and TAT IEEE Catalog Number: ISBN: CFP16OFC-POD Optical Fiber Communications Conference and Exhibition (OFC ) Anaheim, California, USA.\nOptical Fiber Communication Conference Optical Fiber Communication Conference Postdeadline Papers 20–22 MarchAnaheim, California, United States papers in sessions Change year: We would like to welcome you to Berlin. In Berlin will be the European capital of optical communica-tions. Afterthe European Conference and Exhibition on Optical Communications will be held again in Berlin on September 16 to 20, This 33rd edition will provide another record number of participants and.\nThe United Kingdom played a major role in starting the present worldwide activity on optical fibre communications with the publication in of the paper by Kao and Hockham (1) First European Conference on Optical Communications, London, September,Pub: IEE, London ().Author: J.\nMidwinter. Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/ NFOEC ), San Diego, CA, USA, Febp. OWR2 S. Jung, J. Gao, CMOS Multi-level signal transmitter for optical communication, in The 47th IEEE International Midwest Symposium on Circuits and Systems, vol.\n2, Julypp. II–II. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of infrared light through an optical light forms an electromagnetic carrier wave that is modulated to carry information.\nFiber is preferred over electrical cabling when high bandwidth, long distance, or immunity to electromagnetic interference are required.Abstract. On the basis of European ist project results in the field of photonics, the optimist thematic network has produced a roadmap for optical communications.\nThis work is described in the present article which provides scenarios for the evolution of the optical network in the coming 10 by: 3.The OFC Conference is indisputably the world's leading global conference and exposition for optical communications and networking professionals.\nAttend OFC and be part of the event that brings together the people, products, and information that drive optical communications and networking.","domain":"optical_engineering"}
{"url":"http://www.tacticalhuntingsurvival.com/hunting-flashlights-s/118.htm","date":"2018-08-14T14:10:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221209040.29/warc/CC-MAIN-20180814131141-20180814151141-00199.warc.gz","language_score":0.8222931623458862,"token_count":148,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__36821500","lang":"en","text":"Browning Pro Hunter RGB [NFS]\nBrowning Pro Hunter RGB. 5 1/8\" overall. Black polymer construction. Gray finish aluminum bezel. O-ring sealed. Long distance white LED with 30 lumen output is visible up to 25m. Long distance plus wide angle white LED's with up to 40 lumen output are visible up to 25m. Red- blue-green LED for stealth and improved night-vision has 3-4 lumen output and is visible 8-12m. Battery life is 25 hours for long distance plus wide beam white LED's, 30 hours for long distance white LED and 40 hours for red, blue, green LED. Uses three AAA batteries (not included). Hang packaged.","domain":"optical_engineering"}
{"url":"http://joshuaylv.blogspot.com/2009/05/new-toy.html","date":"2018-05-25T22:40:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867220.74/warc/CC-MAIN-20180525215613-20180525235613-00512.warc.gz","language_score":0.9457871317863464,"token_count":277,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__112510267","lang":"en","text":"Finally, after months and months of survey, I'd made my decision and purchased this toy two weeks ago.\nI'd been using Canon SLR since teenage. When digital photography started to bloom in the market 10 years ago, i shifted to Sony cybershot, a compact and simple digital camera. And a few years later, I switched back to SLR camera and purchased my first DSLR Sony alpha 100. But then, Canon I'm still very much attached to Canon cameras, thus prompted me to buy this beautiful baby, Canon 50D.\nI bought two lenses. One Sigma 70-300mm telelens with macro function at 200-300, meaning to say, macro shots are possible at close range when switched to 200~300mm. I'm excited.\nI opted for the 18-200mm kit lens, due to it's flexibility and reliability. Now I don't have to change my lens everytime i need to snap shots of different ranges. This lens come with Image Stabilizer, capable of stabilizing lens to capture photos at low light to avoid blurriness.\nAnd of course, a good camera can't go without a good camera bag, and a good flash. I got myself a sling camera bag. The external flash is cool!\nLooking forward to have free time to try out this toy! Jom jom!","domain":"optical_engineering"}
{"url":"https://pocketdentistry.com/using-3d-imaging-in-the-treatment-planning-of-orthognathic-patients/","date":"2021-09-25T03:38:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057589.14/warc/CC-MAIN-20210925021713-20210925051713-00035.warc.gz","language_score":0.9429856538772583,"token_count":204,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__197196185","lang":"en","text":"The Cone Beam computerized tomography system (CBCT) is used worldwide by medical and dental professionals. The purpose of this system is to correct distortions in the orientation of the tomographic images obtained so that the diagnosis and treatment plan is determined with greater precision.\nObjective: Integrate 3D imaging to the protocol study and treatment planning for orthognatic patients.\nMaterials and method: 3D images taken with a Kodak 9500D Cone Beam with the patient in natural head position. Image size calibration spheres were used but no facial support was needed. Radio-opaque spheres transferred the true horizontal that was determined clinically for each patient just before the image was taken.\nConclusion: It is possible to obtain 3D images that are correctly oriented, calibrated and that accurately reproduce a spacial reference such as the true horizontal, as well as not altering the soft tissues, with is necessary in order to integrate these images with the clinical photographs of the patient.\nConflict of interest: None declared.","domain":"optical_engineering"}
{"url":"https://shopyourgadgets.com/product/canon-eos-r7-rf-s18-150mm-f3-5-6-3-is-stm-lens-kit-mirrorless-vlogging-camera-32-5-mp-image-quality-4k-60p/","date":"2023-10-02T00:57:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510942.97/warc/CC-MAIN-20231002001302-20231002031302-00764.warc.gz","language_score":0.8352134823799133,"token_count":140,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__149873403","lang":"en","text":"About this item\n- Newly developed High Image Quality 32.5 megapixels APS-C sized CMOS sensor\n- DIGIC X Image Processor with a native ISO range of 100-32000, expandable to 51200(1)\n- Dual Pixel CMOS AF II covering approximately 100% width and height(2) with up to 651 zones down to EV -5.0.\n- High speed shooting 15fps mechanical(3,4), 30fps high speed electronic shutter(4,5) and RAW Burst Mode with ½ second pre-shooting.\n- Subject tracking inherited from the R3 with people, animal(6), and vehicle detection","domain":"optical_engineering"}
{"url":"http://www.guldenophthalmics.com/ccp7/index.php?app=ecom&ns=prodshow&ref=Durette_plastic_goggles","date":"2013-05-19T19:13:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368698017611/warc/CC-MAIN-20130516095337-00005-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7552394866943359,"token_count":446,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__159015247","lang":"en","text":"23442 - Durette®* plastic goggles\nNOT FOR USE WITH LASER, FLASH LAMP or IPL. Like the Durette® III, but all in plastic. Durette®* plastic goggles Aestek® The black eye shields provide a wider range of coverage than the white or BLACK eye cups.\nCan be used with:\nLight that is usually created by fluorescent lamps, bright LEDs or diachronic filament bulbs. VISIBLE VIOLET LIGHT IN THE RANGE OF 405-420. Light therapy for skin conditions like psoriasis or eczema which use UVA or UVB PHOTOTHERAPY. PUVA TREATMENT. LIGHT THERAPY FOR RED and near infrared LEDs. Photodynamic Therapy lamps. Optimized, narrowband light via a matrix of LEDs. Narrowband Light emitting Diodes (LEDs).\nNOT FOR USE WITH LASER, FLASH LAMP or IPL. Like the Durette® III, but all in plastic. Durette®* plastic goggles Aestek®\nNot for laser use.\n. Both the nasal and temporal pieces can be moved away from area to be treated, without affecting proper shields' position.\n. Black or white plastic small external patient goggles with mobile clear plastic attachments.\n. Black goggles comes with a black elastic and white goggles comes with a white elastic.\nTHE BLACK EYE SHIELDS PROVIDE A WIDER RANGE OF COVERAGE THAN THE WHITE. For BLACK eye cups: OD +5 @ 190-2575 nm, OD +4 @ 2576-3000 nm\nTHEY SHOULD NOT BE USED WITH LASERS THAT IRRADIATE A COHERENT LIGHT BEAM (spectral irradiance of any wavelength) OR ANY FLASH LAMP OR IPL SYSTEM THAT operates in burst modes that comprise multiple trains of pulses. THEY SHOULD NOT BE USED with high-power, spectral irradiance in the UVB and UVA wavebands or any other spectral irradiance energy or light source. (*US & International patent pending) Ball and socket design.","domain":"optical_engineering"}
{"url":"https://footballinsidernews.com/precision-cutting-made-effortless-the-power-of-fiber-laser-cutting-machines/","date":"2023-10-03T21:56:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511220.71/warc/CC-MAIN-20231003192425-20231003222425-00017.warc.gz","language_score":0.91254723072052,"token_count":880,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__283335972","lang":"en","text":"Precision Cutting Made Effortless: The Power of Fiber Laser Cutting Machines\nIn today’s world, precision and speed are key factors in manufacturing. The demand for high-quality products has never been higher, and this is where fiber laser cutting machines come into play.\nIn this blog, we’ll explore the power of fiber laser cutting machines and how they make precision cuts easy. We will also discuss their advantages over traditional cutting methods and the industries that can benefit from them.\nThe Basics of Fiber Laser Cutting Machines\nA fiber laser cutting machine is a CNC laser cutting machine that uses a fiber laser to cut materials. They are available in a variety of sizes and power levels to suit different needs. Fiber lasers are more energy efficient than other types of laser cutting machines, and they can cut a wide variety of materials, including metal, wood, plastic, and more.\nAdvantages of Fiber Laser Cutting Machines\nFiber laser cutting machines have many advantages over traditional laser cutting machines. They are faster, more precise and can cut a wider range of materials.\nFiber lasers are also more energy efficient than conventional lasers, meaning they can run longer without shutting down to cool down. This makes them ideal for industrial applications requiring continuous production.\nIndustries that Benefit from Fiber Laser Cutting Machines\nThere are many industries that can benefit from using a fiber laser cutting machine. Some of the most common industries that use these machines include:\nHow does Fiber Laser Cutting Machines are Revolutionizing Manufacturing?\nFiber laser cutting machines are revolutionizing manufacturing in several ways, including:\nFaster production time: Fiber laser cutting machines can cut materials at a much faster rate than traditional cutting methods. This means manufacturers can produce products faster, reduce lead times and increase overall productivity.\nCost Savings: Fiber laser cutting machines are very efficient and can save costs for manufacturers. Businesses can save money in the manufacturing process by reducing scrap, lowering labor costs and increasing productivity.\nEnhanced Quality Control: Fiber laser cutting machines offer exceptional precision, resulting in consistent, high-quality cuts. This ensures that the final product is of the highest quality, reducing the risk of defects and product recalls.\nIncreased design flexibility: With fiber laser cutting machines, manufacturers can easily cut complex shapes and designs. This increased design flexibility enables businesses to create unique products that stand out in the market.\nMaintenance and Care for Fiber Laser Cutting Machines\nMaintenance and care are critical to keeping your fiber laser cutting machine running at peak performance. Here are some tips for maintaining and maintaining these machines:\nRegular Maintenance: Regular maintenance is crucial to the lifespan of your fiber laser cutting machine. Regular maintenance should include cleaning, inspection and replacement of parts as necessary. Manufacturers should refer to machine manuals for recommended maintenance schedules and procedures.\nLubrication: Proper lubrication is essential to the smooth operation of the machine. The machine’s manual will give instructions on how to lubricate the machine, and this should be done regularly to avoid damaging the machine.\nCleaning: The machine must be cleaned regularly to remove dust, debris and other contaminants that may affect machine performance. The machine’s manual will provide instructions on how to clean the machine, and it should be cleaned regularly to prevent damage.\nProper Use: The machine must be used correctly to prevent damage. Operators should be trained on how to use the machine properly and should follow all safety procedures.\nCalibration: Periodic calibration is required to ensure the machine cuts accurately. The machine’s manual will provide instructions on how to calibrate the machine, and this should be done on a regular basis .\nTroubleshooting: If there is any problem with the machine, it must be rectified immediately. Your machine’s manual will provide instructions on how to fix common problems.\nFiber laser cutting machines offer unrivaled precision, speed and efficiency when cutting a wide variety of materials, making precision cutting effortless. With these machines, industries as diverse as automotive, aerospace, medical, electronics, and signage can leverage their capabilities and revolutionize their manufacturing processes. If you have any questions about our products, please feel free to contact us at email@example.com.","domain":"optical_engineering"}
{"url":"https://dynaton.com.au/products/force360-fpr800ar-air-clear-anti-reflective","date":"2020-12-01T18:24:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141681209.60/warc/CC-MAIN-20201201170219-20201201200219-00066.warc.gz","language_score":0.8372715711593628,"token_count":215,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__207140380","lang":"en","text":"Force360 FPR800AR Air Clear Anti Reflective\nThe Force360 Force Performance Range (FPR) of safety eyewear introduces the worlds lightest safety spectacle. The Force360 Airweighing in at only 16 grams, is so light you will forget you are wearing.\nThe EFPR800 Air Safety Spectacle now comes with an Anti Reflective (AR) coating option. Precise and focused vision is required in many applications like medical, dentistry, laboratory and even finished goods inspection work, where bright lights and reflecting work surfaces can produce distracting reflections that can hinder vision and the task being performed.\nThe AR coating found on the Force360 FPR800AR eliminates reflected light from entering the eye, allowing applications that require maximum clarity to be performed.\nCertified medium impact rated protection to AS/NZS 1337.1:2010.\nUV400 Polycarbonate lenses offer the wearer the best protection against UVA and UVB damaging rays. 100% protection is the standard across the entire Force360 FPR eyewear range.","domain":"optical_engineering"}
{"url":"http://www.nissaninnovationgarage.com/category/camera/","date":"2017-03-27T16:18:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189490.1/warc/CC-MAIN-20170322212949-00486-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.949029803276062,"token_count":671,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__161283207","lang":"en","text":"Lots of features are being introduced in the world of DSLR Cameras these days. These are all part of the competition. But when DSLR cameras were introduced, two players dominated the industry – Canon and Nikon. Different models of Canon DSLRs and Nikon DSLR Cameras were introduced in the camera market and gave a tough competition to the other companies. This led to the introduction of some special features that sets the DSLR cameras a class apart. One such special feature is the Full Frame Sensors (Fx Format).\nFull Frame Sensors Vs Crop Sensors\nCrop Sensors are small sized sensors. Hence, when a lens intended for film camera is used in a Crop Sensor camera, the image projected by the lens on the sensor is cut off. One such camera is the Canon EOS 70D camera which is a APS-C crop sensor camera (Canon manufactures only one size of crop sensor called the APS-C sensor). There is no doubt that it is an excellent camera but it has less detail in images and when the light level drops, the noise level increases. When image quality is concerned, it is a bit at the lower side compared to full frame sensor DSLRs. (For more details on the specs, refer the Canon EOS 70D Manual). But there are other models in Canon like the 6D that have full frame sensors and produces lovely images but it is very expensive.\nThe difference in the size of the crop sensors is determined by the crop factor. If the crop factor is larger, the size of the sensor is smaller. One more point to keep in mind is that the crop sensor only crops the lens’ angle of view in its sides. It has nothing to do with the focal length.\nFull Frame Cameras have zero crop factor. It means that their sensors that is almost the same size of 35 mm film. While DSLRs with small sensors crop part of the image projected by the lens, a full frame DSLR doesn’t crop the image and thus, in such cameras a 20mm lens still works as a 20mm lens giving a wider-angle picture.\nAdvantages of Using a Full Frame Sensor DSLR\nAdvantage 1: Full Frame DSLR cameras can use wide-angle lenses. This means that full frame DSLRs can capture landscapes and interiors in full view. Full Frame DSLRs are a boon to photographers who want to take a lot of wide-angle pictures.\nAdvantage 2: The full frame Sensor is larger than the Crop Sensor and hence, it is possible to capture large images with high quality.\nThe Pentax K-1 Full Frame Camera\nThe Pentax K-1 is a full frame camera with excellent value for money. Its extraordinary levels of manual control using the top plate combined with high resolution makes it a tough competitor to contend with. While companies like Canon, Nikon and Sony introduced their full frame cameras a decade back, Pentax has taken its own time in satisfying its loyal fans. Its features are quite impressive – the 36 million full frame sensors, with built-in 5 axis image stabilization helps in keeping the images sharp. The price is unexpectedly low when compared to the features it offers.\nFull Frame are advantageous in a lot of aspects. But remember that they cost more.","domain":"optical_engineering"}
{"url":"https://scitechgru.com/facebook-unveiled-surround-360-degree-video-camera/","date":"2019-02-19T02:37:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247489304.34/warc/CC-MAIN-20190219020906-20190219042906-00121.warc.gz","language_score":0.951623797416687,"token_count":208,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__146434978","lang":"en","text":"Shaped like a flying saucer, Facebook unveiled their gorgeous 360-degree video camera that let anyone encourage to build their own camera since it will be accompanied by 17 camera array web-based software to capture 360 degree images and videos and render them automatically.\nIt encourages everyone who loves to capture images, or even their own self using this 360-degree design, from hobbyists to manufacturers.\nThe device includes 14 wide-angle cameras, plus one fish-eye camera on top and another two at the bottom. It allows to capture the surroundings without a pole holding the camera.\nAnd what’s exciting with the device is that it can work with ‘many hours’ without overheating and can export videos of up to 8K resolution.\n“There’s something about how high-quality the experience is that immediately makes you believe in 360 film,” said Chris Cox, chief product officer at Facebook.\nFacebook claims that positioning Surround 360 is as the best designed camera of its kind.","domain":"optical_engineering"}
{"url":"http://icamr.net/bio/freisem_sabine.html","date":"2018-07-19T19:18:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591216.51/warc/CC-MAIN-20180719183926-20180719203926-00429.warc.gz","language_score":0.9546688795089722,"token_count":352,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__162471606","lang":"en","text":"Sabine Freisem, Ph.D.\nDr. Freisem focuses on identifying the future photonic sensors and sensor systems that should be pursued and supported by the consortium. This includes identifying the applications best leveraged by the materials and process platforms of the consortium, and working to recruit key industry members associated with these next generation products.\nFor the last nine years, Dr. Freisem has served as a Senior Research Scientist at the Center for Research and Education in Optics and Lasers (CREOL) at the College of Optics and Photonics at UCF where she conducted research and development of new semiconductor epitaxial materials, especially nanostructures for the development of new high power laser diode technologies for military, industrial and space applications. Dr. Freisem has also worked as a senior research scientist for sdPhotonics LLC where she served as principal investigator on numerous Small Business Innovation Research (SBIR) programs performing scientific and technical research into semiconductor laser and detector technologies. Dr. Freisem has and still does act as consultant to support expert witnesses in patent litigation cases for Foley and Lardner law firm.\nShe has also worked as Senior Publishing Editor for Kluwer Academic Publishers (now Springer Science and Business Media) in the Netherlands, directing the physics, materials science and engineering publication program into new scientific areas of interest by strategic project acquisitions and collaboration with authors, and book and journal editors.\nShe has also served as a research scientist and visiting scientist at The University of Texas at Austin.\nDr. Freisem received her Ph.D. in physics from Leiden University in The Netherlands and her M.S. in Physics from the Technical University of Darmstadt in German.","domain":"optical_engineering"}
{"url":"https://newszf.com/news/science-and-space/the-hyperspectral-constellation-tanager-is-discussed-on-the-planet/","date":"2022-09-25T06:06:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334514.38/warc/CC-MAIN-20220925035541-20220925065541-00059.warc.gz","language_score":0.9338332414627075,"token_count":274,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__238128735","lang":"en","text":"In Science and Space: Planet has released additional information about hyperspectral constellations being developed by the Earth observation company as part of the Carbon Mapper public-private partnership.\nData identifying the sources of methane and carbon dioxide is published through the Carbon Mapper Coalition, while Planet combines hyperspectral data with electro-optical imagery from the Dove, Pelican and SkySat constellations to provide data to government and corporate customers. provide data and insights to\nAccording to a Sept. 19 press release, “Hyperspectral data that help identify spectral ‘signatures’ of chemicals, materials and processes worldwide reveal trends and provide information that would otherwise be hidden.” gaps and reduce risk.\nSan Francisco-based Planet plans to launch its first two hyperspectral satellites in 2023, collecting data in 400 spectral bands at a resolution of 30 meters per pixel.\nPlanet`s hyperspectral satellites destined for sun-synchronous orbit are called Tanager, named for a family of colorful Central and South American birds.\nPlanet is upgrading its Dove CubeSat constellation with SuperDoves. It collects images in his eight spectral bands with a resolution of about 3 meters per pixel compared to his four spectral bands of its predecessor.\nWe continue to provide high resolution images from his SkySats made by Maxar Technologies.","domain":"optical_engineering"}
{"url":"https://www.exccable.com/use-of-optical-fibre/","date":"2024-04-22T09:35:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818105.48/warc/CC-MAIN-20240422082202-20240422112202-00422.warc.gz","language_score":0.9114916324615479,"token_count":262,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__89832810","lang":"en","text":"Introducing Exc Industry (Shenzhen) Co., Ltd., a leading manufacturer, supplier, and factory based in China, specializing in the production of innovative optical fibre products. We take pride in bringing cutting-edge technology and superior quality to the global market. Optical fibre is a revolutionary technology that is transforming communication systems across various industries. With the increasing demand for fast and reliable data transmission, our optical fibre products ensure seamless connectivity and high-speed data transmission, making them indispensable for telecommunication networks, internet service providers, and data centers. Our skilled team of engineers and technicians work diligently to develop and manufacture a wide range of optical fibre solutions. From single-mode to multi-mode, simplex to duplex, we offer diverse options to cater to individual requirements. Our products are designed to withstand harsh environmental conditions and provide exceptional performance, delivering unparalleled reliability and durability. Partnering with Exc Industry means choosing a trustworthy and experienced supplier that is committed to delivering excellence. We adhere to strict quality control measures and continuously strive to stay ahead of industry advancements. As a customer-focused company, we also provide comprehensive customer support, ensuring your satisfaction throughout the entire process. Experience the power of optical fibre technology with Exc Industry (Shenzhen) Co., Ltd. – your trusted partner for all your optical fibre needs.","domain":"optical_engineering"}
{"url":"https://www.mensor.com/en-us/lp_scandura.WIKA","date":"2024-02-29T14:48:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474843.87/warc/CC-MAIN-20240229134901-20240229164901-00012.warc.gz","language_score":0.9500143527984619,"token_count":153,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__12005272","lang":"en","text":"Founded in Italy in the 1950s, Scandura has established itself internationally in the field of calibration technology. Scandura strengthens WIKA's leading role in this field by joining the calibration technology product family.\nScandura has made a name for itself with its unique calibration applications – such as portable calibrators, complete calibration systems and calibration software. Especially the portable calibrators meet the highest requirements and safety standards. With ATEX certifications, they are also used as reliable measuring device in critical applications in the process industry, for example. Depending on the calibration and testing requirements, the highest accuracy can be achieved in a wide range of applications.\nMensor handles sales and service of Scandura products that are now branded WIKA in the United States.","domain":"optical_engineering"}
{"url":"http://www.norworld.no/nettbutikk/346-kikkerter-for-jakt-fiske-fritid/4135-kikkert-bresser-national-geographic-8x21/","date":"2020-04-02T12:46:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370506959.34/warc/CC-MAIN-20200402111815-20200402141815-00031.warc.gz","language_score":0.9389688968658447,"token_count":268,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__127996908","lang":"en","text":"Kikkert BRESSER NATIONAL GEOGRAPHIC 8x21\nLight and compact model for everyday use. Its weight does not reach even 200 grams and will be the perfect companion for every journey. This model has a magnification of 8x and offers a high quality picture during daytime observation. The Bresser National Geographic 8x21 Binocular Telescope is based on an optical construction with roof prisms. The optic is made of glass and all outer members are covered with several layers of special anti-reflective coating. This ensures a clear and clear image with perfect color rendering. The body of the device is made of plastic and the optical tubes are coated with a special relief rubber that provides a better grip. Other characteristic features of this binocular telescope are adjustable interpupillary distance and adjustment of sharpness. Bresser National Geographic is a joint project of the international organization National Geographic and the German company Bresser, which produces high quality optical instruments. It was the quality of the products that National Geographic was looking for in finding a reliable partner for the production of telescopes, binoculars and accessories under its name. The National Geographic series targets people who have active lifestyles and want to explore the world around them.\n- A prism prism\n- Magnification: 8x\n- Lens lens diameter: 21 mm","domain":"optical_engineering"}
{"url":"http://www.advancedeyecareutah.com/our-services/lasik-surgery/clear-lens-extraction/","date":"2021-12-05T22:23:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363226.68/warc/CC-MAIN-20211205221915-20211206011915-00306.warc.gz","language_score":0.9301658868789673,"token_count":191,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__137277152","lang":"en","text":"For individuals over 40 who are considering refractive surgery to decrease dependence on glasses and contact lenses, clear lens extraction (CLE) is an option.\nThis procedure entails removing the natural lens of the eye and replacing it with an intraocular lens (IOL) implant. This procedure is essentially the same as cataract surgery with lens implant, however in this case the procedure is completed prior to cataract development for the refractive advantage. CLE may be an excellent alternative for people already wearing bifocals or for those who do not qualify for other refractive procedures such as LASIK or PRK. CLE avoids any treatment of the cornea, and instead changes the refractive power of the eye in a potentially more natural position. CLE is best suited for patients over 45 years of age who are already wearing bifocals. A multifocal IOL implant is also an option, allowing the patient to focus both near and far.","domain":"optical_engineering"}
{"url":"https://uppe.nu/category/okategoriserade/","date":"2024-04-15T10:12:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00607.warc.gz","language_score":0.9345664978027344,"token_count":216,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__17963369","lang":"en","text":"Fault: Optical fiber outage causing network disruption of internet traffic.\nStatus: Partially remedied (failover path in use).\nWork is being done to find the fault and remedy it.\nDatastorage is not affected by the outage (multipathing).\nAt 10:40 backup and primary paths are now recovered. Full redundancy has been restored.\nFurther investigation into the failed optical fiber will be made.\nWork is being undertaken to improve and speed up the fail-over of fiber redundancy for inter-DC connectivity.\nAt 09.00 a switch failure occurred in core infrastructure which burnt optical fiber transceivers.\nRemediation: By 09.15 the fault had been found and all network paths had been migrated to secondary fiber connections.\nThe faulty switch has been replaced and redundancy restored. We’re planning to perform maintenance work (future scheduled window) to implement new protocols for automated fail-over of fiber paths.","domain":"optical_engineering"}
{"url":"https://www.perthdronecentre.com.au/thermal-imaging/","date":"2022-06-25T14:38:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103035636.10/warc/CC-MAIN-20220625125944-20220625155944-00374.warc.gz","language_score":0.8656822443008423,"token_count":173,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__256585858","lang":"en","text":"Aerial Thermal Imaging is a great preventative maintenance tool. It can detect weak spots in structures, anomalies in components, overloaded electrical components, and much more.\nPrevention can help companies save time and money for before their valuable equipment or structures fail.\nAerial thermal imaging can quickly and easily identify thermal bridging, heat loss, water ingress and flat roof leaks, inadequate or missing insulation, damp, leaking pipes and much more.\nPower Distribution Inspections\nAerial Thermal Imaging can detect weak points in the transmission or distribution networks making it easy to identify problem areas before a breakdown or fire happens.\nSolar Panel Inspections\nManual inspections are time consuming, and cost prohibitive. Using Aerial Thermal Imaging, an entire field of solar panels can be inspected quickly, checking for any hot spots where there might be problem areas.","domain":"optical_engineering"}
{"url":"https://infocus.ust.hk/028-tiny-lasers-show","date":"2021-01-26T04:38:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704798089.76/warc/CC-MAIN-20210126042704-20210126072704-00533.warc.gz","language_score":0.9102222323417664,"token_count":329,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__281917676","lang":"en","text":"Tiny Lasers Show Way to Light-Based Computing Era\nThe fabrication of microscopically small lasers directly on silicon by Prof Kei May Lau, Fang Professor of Engineering and Chair Professor of Electronic and Computer Engineering, and her group has given the prospect of light-based computing a major boost. The breakthrough, impossible to achieve for over 30 years, saw the integration of subwavelength cavities onto silicon, enabling high-density on-chip light-emitting elements to be created and demonstrated.\nThe advance represents an exciting step forward for the semiconductor industry. Prof Lau, who worked in collaboration with scientists from the University of California, Santa Barbara, Sandia National Laboratories and Harvard University, said such lasers could increase microprocessor capabilities and allow the microprocessors to use much less power, moving photonics and electronics integration on a silicon platform closer to reality and potentially providing a key solution for next-generation green information technology. The lasers used measure just one micron in diameter, and are 1,000 times shorter in length and one million times smaller in area than those currently used for commercial applications.\nPhotonics has long been the most energy-efficient and cost-effective method to transmit large volumes of data over long distances. With the new silicon-based integrated lasers, photonics may be able to be used for short-distance data transmission as well. “These whispering gallery mode lasers are an extremely attractive light source for on-chip optical communications, data processing and chemical sensing applications,” Prof Lau said.\nThe research was published as the cover story in Applied Physics Letters and further highlighted by online media.","domain":"optical_engineering"}
{"url":"http://www.securitysystems-tech.com/suppliers/shooter-training-system/noptel-oy","date":"2017-04-23T08:12:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118310.2/warc/CC-MAIN-20170423031158-00354-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8925244808197021,"token_count":424,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__102579061","lang":"en","text":"Founded in Oulu (Finland) in 1982, the NOPTEL Company specializes in the development and manufacture of innovative applied optoelectronic solutions. Noptel’s product line encompasses two major areas: Laser rangefinders and optical alignment and displacement measurement products.\nNOPTEL employs thirty persons and has been a subsidiary of the Belgium-based FN HERSTAL since 2011. Today, NOPTEL’s expertise as a key player in developing military qualified and military proven optoelectronic applications is well established.\nNoptel Shooting Training Device\nThe Noptel Expert is an optical shooting training device for shooting skills training. It is used indoors with scaled-down targets and simulated shooting distances, or at shooting range with life-size targets and longer shooting distances. It measures rifle movement, detects the shot, shows the location of both the hit and miss, and analyses the shooter's performance. The Expert software shows the rifle movement during the aiming and triggering, and the score right after the shot.\n- Fully portable: training anywhere and anytime\n- Ready to use in minutes\n- Mounting to most rifles\n- Immediate shot analysis and feedback by Noptel Expert software\n- Wireless operation\n- Rugged Construction, indoor and outdoor use\n- Training at simulated distances\n- Training at long distances (shooting range)\n- Always safe: no life ammunition\nNoptel Long Distance Range Finding\nThe compact, eye safe and highly integrated laser rangefinders can be used as OEM products in different applications.\n- Airborne, land, maritime and naval systems\n- Vehicle mounted reconnaissance systems\n- Observation and surveillance systems\n- Handheld targeting systems\n- Future soldier program equipment\n- Fire control systems\n- Mobile range finding\n- Location measurement\nNoptel rangefinders can be delivered as open modules or in nitrogen-filled, watertight casings enabling flawless operation under harsh environmental conditions. The robust hand held devices measure distances beyond 10 km.\nFind out more at: www.noptel.fi","domain":"optical_engineering"}
{"url":"https://fstoptraining.com/advantages-mirrorless-cameras/","date":"2024-02-23T15:55:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474440.42/warc/CC-MAIN-20240223153350-20240223183350-00067.warc.gz","language_score":0.9426668882369995,"token_count":1546,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__113715708","lang":"en","text":"Why all the hype about mirrorless cameras? Is mirrorless a better system than the DSLR system and if so, what are the advantages of mirrorless cameras over DSLR cameras?\nMirrorless cameras have been around for many years but have come to the fore in the past few years. When Sony released their full frame mirrorless cameras and Fuji introduced their high-end mirrorless systems, many photographers sat up and took notice. The photographers taking note included both enthusiasts and professionals. Over the past few years, the mirrorless camera system has developed and improved at a staggering rate. Let me discuss why I believe the rise of the mirrorless system is not about to slow any time soon.\nWhat’s fueling the Rise of The Mirrorless System?\nA lot of people ask this question to me and many internet forums. I do not doubt that the main reason for the rise and shift towards mirrorless cameras by manufacturers is financially motivated.\nSmartphones come equipped with ever better cameras. The new technology race between smartphone manufacturers is now related to the quality of their cameras. Because the vast majority of the world’s population own and carry a smartphone with them at all times, there is little need for anyone to buy a dedicated portable camera. As such, the sale of small point and shoot cameras has declined significantly.\nThe financial concerns are real, but they are not the only factor fueling the rise of the mirrorless system. There are many advantages of mirrorless cameras over the established but older DSLR cameras. Some of these advantages are aesthetic, but the majority are technological. It is these technological advantages of the mirrorless cameras that are causing the rise in popularity. And, it is these technical advantages that will continue to generate the rise in popularity and sales to continue.\nLet me mention some of the advantages of mirrorless cameras as I see it. This list is not finite, and I do not doubt that this list will grow as the years roll on. The list is not in any particular order other than how they came to mind as I wrote this article.\nSeeing in The Dark\nMirrorless cameras will show you a live and real-time image that is representative of the current settings. So if you increase the shutter speed to allow more light to the sensor, you will see the scene becoming brighter in the viewfinder and the LCD screen. This brighter view enables you to frame a shot in the dark accurately, and it also assists you to gauge your exposure when using neutral density filters.\nA Living Histogram\nA mirrorless camera will show you a real-time histogram in the viewfinder or LCD as you compose and adjust your exposure settings. Being able to see a live histogram ensures you have a correctly exposed image. Yes, I am aware the histogram is based on the camera’s interpretation of a JPEG preview, and not based on the Raw file. However, it is an excellent benchmark.\nI know that size is not everything, but it is usually important. All mirrorless cameras are currently smaller than their equivalent DSLR camera. Some mirrorless cameras are not much smaller than a DSLR but those mirrorless cameras typically have a lot more technology packed into them, such as In-Body Image Stabilization (IBIS) or even a medium format sensor.\nGenerally, mirrorless cameras are more compact and much lighter than DSLR cameras.\nThe autofocus capabilities are a significant advantage of mirrorless cameras. I would say that this is the most significant advantage of mirrorless cameras and the area where most of the advancements can and will be made over the coming years. I do not want to litter this article with technical jargon, so I’ll keep the reasons for the autofocus advantage simple.\nA DSLR camera uses a separate sensor to achieve autofocus. This separate sensor uses a system called phase detection to measure the distance of the object from the camera before “telling” the lens where to focus. For this system to be accurate, everything must be in perfect alignment: the mirror; the autofocus sensor; the lens motors and the image sensor.\nA mirrorless camera does not have a mirror in front of the sensor, and therefore it doesn’t need to utilise a separate focusing sensor. A mirrorless camera uses the image sensor to focus directly, meaning there are no alignment issues and the focus in nailed every time.\nInitially, mirrorless cameras had slow autofocus and were not a match for their DSLR contemporaries, but this has changed. Modern processing power has allowed mirrorless cameras to catch, and overtake the DSLR autofocusing speed and accuracy.\nThis advantage of mirrorless cameras is one of the main areas where advancements will continue until DSLRs are left way behind.\nThis advantage is only relevant if you shoot in JPEG. Many people do shoot JPEG only and always will. As you change and adjust the white balance setting of the camera, you will see the difference in tone in real-time through the viewfinder or the LCD screen.\nUsing manual focus with a mirrorless camera is so much easier than a DSLR camera, especially in low light. Modern focusing aids like Focus Peaking and temporary zoom assist allow you to know that you have focussed accurately.\nWhen Focus Peaking is enabled, the camera will add a highlight colour to areas of the scene that are in focus. This highlighting is visible in the viewfinder and the LCD screen whether you have zoom assist switched on or not. Regardless of the quality of your vision, you can always see the highlighting on the subject and know you have focussed correctly.\nA Depth of Field Preview\nWhen using a DSLR camera, it is difficult to imagine the depth of field in the final shot. Most DSLR cameras do provide a depth of field preview button, but they are less than accurate and will reduce the amount of light that reaches the viewfinder.\nBecause a mirrorless camera uses the sensor to project what you see in the viewfinder, you always have an accurate depth of field preview. No need for a separate button on the camera.\nYes, I know that this is a feature that can be found in DSLR cameras too, but modern mirrorless cameras can be set up to recognise one face in a crowd. A feature that is extremely useful when shooting a wedding. For example, you can teach the camera to remember and favour the Bride’s face above all others. This feature ensures that your camera will always focus on the Bride’s face, even when there is a crowd of guests around.\nNope, not the black and white horses. Rather, the black and white lines that can be displayed in the viewfinder to show you areas in the scene that are overexposed. A mirrorless camera can show you zebra lines in the viewfinder and LCD screen whether you are shooting stills or video. The zebra lines are also fully customisable.\nNow that Nikon has finally announced it’s full-frame mirrorless camera and Canon are about to announce theirs, 2019 will be the first year where all camera manufacturers have serious mirrorless cameras to satisfy both enthusiasts and professionals. Even although Sony and Fuji are years ahead of Nikon and Canon with their mirrorless cameras, it won’t take Nikon and Canon long to catch up. The technology genie is out the bottle, and I do not doubt that DSLRs will go the way of vinyl and carburettors.\nWhat’re your thoughts? Have I missed any advantages? Please let me know.","domain":"optical_engineering"}
{"url":"http://glendalesecurity.co.uk/glendale_domestic-thermal-imaging.html","date":"2017-11-19T05:08:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805362.48/warc/CC-MAIN-20171119042717-20171119062717-00379.warc.gz","language_score":0.9225690364837646,"token_count":423,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__155660047","lang":"en","text":"Thermal imaging cameras produce images of invisible infrared or “heat” radiation. Based on temperature differences between objects, thermal imaging produces a clear image. In contrast with other technologies, such as light amplification, thermal imaging needs no light whatsoever to produce an image on which the smallest of details can be seen. Thermal imaging provides full visibility irrespective of the prevailing light level and weather conditions.\nThermal Imaging Systems\nThermal imaging cameras use infrared technology to see the surface heat of objects in their line of sight. As different types of objects display their energy at different rates depending on the level at which they have absorbed it, a thermal imaging camera requires less light to see than we do in the dark.\nClear video in daylight, darkness, and bad weather. Video that isn’t affected by shadows and back light; they can even look directly at the sun\nThe Cameras also have the power to tell the difference between objects like humans, animals, cars, and bicycles\nThey can even be used to see through smoke so are used by the fire brigade, the police use them to track and apprehend criminals. Mountain rescue use them to locate trapped climbers, vet’s use them to monitor animals temperatures and they are even used for air tightness testing to determine the areas of a building losing the most heat. The images can be displayed in monochrome, iron or rainbow dependant on the intended use of the system and the level of recognition required.\nIf you would like us to contact you please enter the reason for your enquiry and details of your preferred method of contact in the fields provided and one of our advisers will be in touch with you as soon as possible.\nIf you would like to arrange an appointment with an engineer or security adviser, please contact our office between 9am & 5pm, Monday to Friday on 0800 318 083..\nIf you require emergency engineer assistance out with normal office hours please call 0800 318 083. to reach our 24 hour emergency service.\nContact us either by phone or fill in form below for a free no obligation quote.","domain":"optical_engineering"}
{"url":"http://techlivenews.com/2019/02/20/panasonic-launches-fz-1000-ii-zs80-compact-superzoom-cameras/","date":"2023-12-02T21:45:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100452.79/warc/CC-MAIN-20231202203800-20231202233800-00198.warc.gz","language_score":0.910510241985321,"token_count":666,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__176346751","lang":"en","text":"“The Panasonic FZ-1000 II will rival the Sony RX10 IV with 16x zoom and optical stabilisation, while the ZS80 offers 30x optical zoom in a super-compact body.”\nPanasonic has always built pretty compelling cameras, which offer robust versatility in terms of feature sets. Now, the company has launched two new cameras in the compact, superzoom segment — the Panasonic FZ-1000 II and the Panasonic ZS80. The cameras are aimed at different consumer segments, but what’s common are their rather heavyweight rivals from the established imaging and electronics stables of Sony and Nikon.\nTo begin with, the Panasonic FZ-1000 II is the upgraded offering over 2014’s FZ-1000. It is powered by an all-new 1?-type sensor with 20.1MP effective resolution. Panasonic claims that the new sensor offers “high sensitivity”, which theoretically guarantees better low light performance than before. The party piece of the FZ-1000 II is its 16x Leica DC zoom lens, with 35mm-equivalent focal range of 25-400mm, at f/2.8-4.0. The nifty zoom is aided by five-axis hybrid optical image stabilisation (such high zoom ranges lead to fine parallax and instabilities).\nOther features of the Panasonic FZ-1000 II include 12fps continuous shooting, dual-control wheel for better manual photography control, 4K movie recording at 30fps, 4K photo extracting with sequence compositing (object tracking photography), and a 2.36MP OLED electronic viewfinder. It also gets wireless connectivity with Wi-Fi and Bluetooth for smartphone transfer and remote control. The Panasonic FZ-1000 II primarily rivals the 24x zoom-equipped Sony RX10 IV, and while it does appear to fall slightly short in terms of the focal range, Panasonic has priced it at $899 (approx. Rs 64,000), which is nearly half of what Sony charges for its superzoom el supremo.\nThe second new camera, the Panasonic ZS80, is an even more compact camera with a super slim body meant for being a point-and-shoot companion for avid travellers. It barely takes up any space, thanks to its 1/2.3?-type sensor (the kind we see in most smartphones). While the sensor has its limitations, the lens is a pretty hefty 24-720mm f/3.3-6.4 (35mm-equivalent) Leica-branded one that offers plenty of range to snap up quick shots. There is a built-in optical stabiliser, a flip-up touchscreen viewfinder, 4K 30fps movie recording and even 10fps continuous shooting, making it a neat little package (quite literally).\nThe Panasonic ZS80 has been priced at $449 (approx. Rs 32,000), which is pretty competitive given what it offers. Here too, Panasonic has offered considerably shorter focal range than a plausible rival, the incredulous, 100x zoom-equipped Nikon P1000 (they’re both aimed to be a travelling companion for superzoom requirements), but has priced it at less than half of what Nikon charges for the P1000.","domain":"optical_engineering"}
{"url":"https://eqsglobal.com/3d-laser-profilometry/?doing_wp_cron=1709216811.4045460224151611328125","date":"2024-02-29T14:26:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474843.87/warc/CC-MAIN-20240229134901-20240229164901-00052.warc.gz","language_score":0.944836437702179,"token_count":224,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__13910934","lang":"en","text":"3D Laser Profilometry\nLaser Profilometry, also known as 3D Laser Scanning, use portable 3D scanners to accurately map the surface of a free form object. A laser cross is projected on the surface while two cameras read the laser cross profile to build a 3D scan file in real time. The scanner is self-positioned by triangulation of randomly positioned reflective targets. This non-contact inspection technique eliminates the need to mechanically fix the scanner to the part being scanned for encoding.\nEQS Global is an Accredited Non-Destructive Testing Laboratory and an independent and independent and certified inspection company, offering a full range of services dedicated to inspection and testing, and the necessary knowledge to support its clients throughout the assets’ lifecycle.\nEDP Renewables has been working with EQS Global for some years. In this project, Windfloat, I think I can easily characterize the relationship with EQS Global in a few words, namely, trust, availability, commitment and, above all, professionalism.\nWe evaluated your last two inspection reports and suggested improvements!","domain":"optical_engineering"}
{"url":"https://funique.ca/en/shop/30-experiment-microscope/","date":"2023-09-22T21:29:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506423.70/warc/CC-MAIN-20230922202444-20230922232444-00886.warc.gz","language_score":0.8693732619285583,"token_count":104,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__247426812","lang":"en","text":"A microscope with lenses, color filters and 3 magnification options: X200 / X600 / X1200, with LED lighting.\nThe foot and body of the microscope are made of metal.\nThe set includes slides to create your own samples, 4 prepared slides , pliers, labels, a petri dish and vials, an instruction booklet with 30 experiments to learn how to prepare slides , take samples, adjust the microscope and light.\nRequires 1 CR2032 battery (included)\n8 years and older","domain":"optical_engineering"}
{"url":"https://airinspect.com.au/solar-farm-inspections/","date":"2024-02-21T17:10:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473524.88/warc/CC-MAIN-20240221170215-20240221200215-00297.warc.gz","language_score":0.9234883785247803,"token_count":159,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__7892998","lang":"en","text":"Solar Farm Inspections\nSolar Photovoltaic (PV) systems and Solar farms will need regular checks and maintenance to ensure the solar cells are operating smoothly. The traditional manual method is by employing field engineers to conduct inspections using hand held thermal cameras. This is time consuming and a misuse of quality resources; putting employees in possibly hazardous and arduous environments and can lead to missed incidents or faults due to human error.\nAir Inspect Australia use drones fitted with both thermal and RGB cameras to yield faster and more accurate data capture and significantly decrease the risk to human safety. There is no need to expose or remove equipment or plant shut-down; our highly trained staff can properly perform the aerial field inspection to detect abnormal heat signatures and ensure all aviation laws, environmental health and safety requirements are met.","domain":"optical_engineering"}
{"url":"https://goldplusgroup.com/commercial-vehicle/","date":"2022-07-01T08:34:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103922377.50/warc/CC-MAIN-20220701064920-20220701094920-00127.warc.gz","language_score":0.9672978520393372,"token_count":105,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__273097485","lang":"en","text":"Gold plus has launched Automotive Laminated Safety Glass. The glass is hugely safe. Also, it provides a clear view in all kinds of conditions. The view is totally distortion free. The windshield glass also blocks harmful UV rays. As they have recently launched the facility. They are going to provide glass for all kinds of commercial vehicles available in India.\nFurthermore, Gold plus has already started working with a lot of dealers throughout the Indian market to gain a steady line of loyal clients for their commercial vehicle glass item","domain":"optical_engineering"}
{"url":"http://www.wisepress.com/ebooks/biomedical-applications-of-light-scattering/","date":"2017-10-23T00:49:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825497.18/warc/CC-MAIN-20171023001732-20171023021732-00081.warc.gz","language_score":0.7755237221717834,"token_count":390,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__92999904","lang":"en","text":"Essential light scattering theories, techniques, and practices Extend tissue characterization and analysis capabilities using cutting-edge biophotonics tools and technologies. This comprehensive resource details the principles, devices, and procedures necessary to fully employ light scattering in clinical and diagnostic applications. Biomedical Applications of Light Scattering explains how to work with biological scatterers and scattering codes, accurately model tissues and cells, build time-domain simulations, and resolve inverse scattering issues. Noninvasive biopsy procedures, precancer and disease screening methods, and fiber optic probe design techniques are also covered in this detailed volume.\nAnalyze light scattering spectra from complex and continuous media Build high-resolution cellular models using FDTD and PSTD methods Work with confocal microscopic imaging and diffuse optical tomography Measure blood flow using laser Doppler, LSCI, and photon correlation Perform noninvasive optical biopsies using elastic scattering techniques Assess bulk tissue properties using differential pathlength spectroscopy Detect precancerous lesions using angle-resolved low-coherence interferometry Risk-stratify patients for colonoscopies using enhanced backscattering methods\nIntroduction - overview of classical light- scattering formalisms; Ch 1. FDTD and PSTD for modeling light scattering; Ch 2. a/LCI for detection of neoplasia; Ch 3. Enhanced backscattering spectroscopy for colon screening; Ch 4. Inverse scattering in OCT; Ch 5. Confocal LSS microscopy; Ch 6. Elastic scattering spectroscopy and optical biopsy; Ch 7. Cell ultrastructure scattering in Diffuse Optical Tomography; Ch 8. Sub-cellular light scattering for understanding photodynamic therapy; Ch 9. Light scattering in confocal reflectance microscopy; Ch 10. Dynamic light scattering for ocular diagnostics; Ch 11. Laser speckle contrast imaging of blood flow; Ch 12. Differential pathlength spectroscopy","domain":"optical_engineering"}
{"url":"http://www.barskleuren.nl/q345d-steel/6c9240b9aa140448.html","date":"2021-07-26T20:44:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046152144.92/warc/CC-MAIN-20210726183622-20210726213622-00608.warc.gz","language_score":0.8946353197097778,"token_count":1224,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__290207907","lang":"en","text":"Solari Vision makes great Infrared filters. I have a 820nm filter from them and like that one equally as much as this 665 nm. Both filters are well made, with quality glass and brass. Plus, Kolari Vision was very nice to let me switch from the 625nm to the 590nm when I 650nm ir cut off filter, 650nm ir cut off filter Suppliers About product and suppliers:238 650nm ir cut off filter products are offered for sale by suppliers on A wide variety of 650nm ir cut off filter options are available to you, There are 8 suppliers who sells 650nm ir cut off filter on , mainly located in Asia.\nMay 29, 2018 · During the daytime, the filter is on in order filter out Infrared Light, that way, color images are not distorted by IR Light. During the nighttime, the IR cut filter is automatically switched off to allow infrared light to enter the camera. The camera switches to IR Mode (Black and White) which is more sensitive to Infrared light. HOYA R72 INFRAREDThe HOYA R72 Infrared filter is specifically designed for infrared photography with digital cameras and infrared film. Infrared light starts in the high-red area of the visible spectrum at around 750nm and goes up beyond 1000nm. This light is not visible to the naked eye. Looking through the R72 filter it looks almost opaque because the filter How many fstops does a hoya R72 ir filter cut? Photo.net Jan 27, 2016 · Modern sensors - such as my D800E - have about 14-15 stops of filtering of IR light on the sensor. This is a tested result comparing exposure times on a converted IR camera with a filter to an unconverted camera. An IR filter such as the R72 blocks visible spectrum below 720nm - all the visible spectrum. But blocking is a relative term.\nAug 03, 2020 · The bandpass filters shown on this page feature center wavelengths from 1.75 to 12.00 µm. Transmission curves for individual filters can be viewed by clicking the blue icons below. Each filter is epoxied into a black anodized aluminum ring which can fit inside our SM1 Lens Tubes. These filt Life Pixel Digital Infrared Filter Comparison PhotosSuper Color IR Filter (equivalent to 590nm Filter) Download RAW File View Larger Version Provides for a super vibrant foliage and intensely colorful sky. With the red & blue channels swapped the foliage takes on a golden orange tone and sky a beautiful royal blue. The most surrealistic, color infrared filter Longpass Filters Longpass Edge Filters Edmund OpticsLongpass Filters can be used with Shortpass Filters to create custom bandpass filters. Certain Longpass Edge Filters can also be used as cold mirrors to minimize the heat buildup often caused by infrared radiation. Edmund Optics offers a wide variety of Longpass Edge Filters for performance in the ultraviolet, visible, or infrared wavelengths.\nChina manufacturer Plastic M12 S Mount Lens Holder with 650nm IR Cut Filter, Hole Spacing 20mm, Height 12mm - AICO Lens Accessories. Neutral Density Filters SpectrogonIR ND filters are designed for 2000-16000 nm ND UV-VIS filters are designed for 190-2500 nm VIS ND filters are designed for 400-800 nm. Spectral measurements Spectral curve at room temperature and normal incidence angle is supplied with each filter type. Click on the Description, to see spectral characteristics for the filters in stock. Neutral Density Filters SpectrogonIR ND filters are designed for 2000-16000 nm ND UV-VIS filters are designed for 190-2500 nm VIS ND filters are designed for 400-800 nm. Spectral measurements Spectral curve at room temperature and normal incidence angle is supplied with each filter type. Click on the Description, to see spectral characteristics for the filters in stock.\nSep 14, 2020 · Each premium filter is compared with its closest equivalent standard filter. Filter diameters are 25 mm or 1\" unless otherwise noted. Please note that the bandpass regions vary slightly between items, and the FLH633-5 filter is compared to a filter with a specified center wavelength of 632.8 nm. Standard Bandpass Filters - Newport CorporationOur Bandpass Filters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from X-ray to the far IR. Applications include spectra radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, or any application where spectral isolation is required. Out-of-band blocking to less than 0.01% UV VIS NIR optical filters Absorption IR filters IR Uses of our optical filters span Medical, Defence, Industrial, Commercial, Electronics, Research and Entertainment markets and many sectors and applications. View our stock filter ranges below, which include filters for passing and blocking wavelengths from UV, through visible to NIR and IR.\nZWO 850nm IR Pass Imaging Filter - 1.25 The ZWO IR Pass Filter allows infrared light with wavelengths of more than 850nm to pass, effectively removing the part of the spectrum that is sensitive to bad seeing. When you image the planets or Moon wi Zomei IR filters review & comparison · David Kennard Whereas for a camera without an IR blocking filter, you would get an image that has a lot of IR and a bit of red. With an 850 nm IR filter you should get a pure IR image whether your camera has an IR blocking filter or not. The only difference is that with an IR blocking filter youll need a lot longer exposure than with a converted camera. How to Emulate Kodak Aerochrome with the 550nm IR Filter Hi, my name is David. I am an infrared Photographer from Austria, and in this article I will explain you the basic steps for processing infraed photography taken with the 550nm filter. This specific filter has a lot of creative advantages compared to higher cutting longpass filters,","domain":"optical_engineering"}
{"url":"https://stelladecoro.hr/proizvod/desk-lamp-elegante-led-square-804/","date":"2023-12-02T18:47:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100448.65/warc/CC-MAIN-20231202172159-20231202202159-00188.warc.gz","language_score":0.8412665724754333,"token_count":119,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__231877558","lang":"en","text":"The white LED lamp is a combination of high quality and functionality. The unique head can be adjusted in many planes, which facilitates convenient positioning of the lamp. In addition, it has the ability to change the intensity and color of light. Perfect for the office, study or workshop.\n1. 56 super bright ultra-efficient SMD LEDs\n2. Two colors (warm light / cool light) dimmable from 1-6 W\n3. Adjustable arm\n4. Adapter: DC13V\n5. Color temperature: 3500-6500K\n6. 6W power","domain":"optical_engineering"}
{"url":"https://abrars.co/product/ipc-hdw2449t-s-il-4mp-smart-dual-illumination-fixed-focal-eyeball/","date":"2023-09-22T02:41:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506320.28/warc/CC-MAIN-20230922002008-20230922032008-00527.warc.gz","language_score":0.811690628528595,"token_count":226,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__221319284","lang":"en","text":"> 4-MP 1/2.9″ CMOS image sensor, low luminance, and high definition image.\n> Outputs max. 4 MP (2688 × 1520)@20 fps, and supports 2560 × 1440 @25/30 fps\n> H.265 codec, high compression rate, ultra-low bit rate.\n> Built-in warm light/IR LED, the max. illumination distance is 30 m and the max. warm light distance is 15 m.\n> ROI, SMART H.264+/H.265+, flexible coding, applicable to various bandwidth and storage environments.\n> Rotation mode, WDR, 3D NR, HLC, BLC, digital watermarking, applicable to various monitoring scenes.\n> Intelligent monitoring: Intrusion, tripwire (the two functions support the classification and accurate detection of vehicle and human).\n> Supports max. 256 G Micro SD card; built in MIC.\n> 12 VDC/PoE power supply, easy for installation.\n> IP67 protection.\n> SMD Plus.","domain":"optical_engineering"}
{"url":"https://www.tsocorinthianpointe.com/2015/11/08/can-people-with-astigmatism-also-wear-lenses/","date":"2021-06-14T15:32:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487612537.23/warc/CC-MAIN-20210614135913-20210614165913-00077.warc.gz","language_score":0.9526212215423584,"token_count":350,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__52030029","lang":"en","text":"Are you aware that there are contact lenses especially made to correct your astigmatism? Normally, the cornea is round, but in the case of someone with astigmatism, it's more elliptical. This affects the way light enters the eye, and results in blurred vision.\nThe lenses used to correct astigmatism are called toric contact lenses. Toric lenses have a design that differs from that of regular lenses. Compared to typical lenses, which have one power throughout the lens, toric lenses have two different powers; one for astigmatism, and one which addresses myopia or hyperopia. Unlike regular lenses, which can freely move around on your eye and have no effect on your vision, toric lenses must stay in place. Contact lenses for astigmatism are actually heavier on the bottom, to prevent them from moving around on your eye.\nJust like regular lenses, toric lenses are available as soft disposable contact lenses, daily disposable lenses, and frequent replacement lenses. If you like to wear multifocal or even colored lenses, then don't worry, there are toric lenses made to suit your needs too. Hard contact lenses, also called rigid gas permeable lenses, provide a firmer shape which helps them stay in place, but they aren't always as comfortable as soft lenses. Together, we'll be able to find the best brand to suit your eyes.\nToric contact lens fittings might sometimes need more time than regular contact lens fittings, because of the relative complexity of the lens. It might sound a little daunting, but it's worth the end result; getting treated, glasses-free. Being fitted with the right product will only improve your vision, and consequently, your everyday life.","domain":"optical_engineering"}
{"url":"https://www.moticmicroscopes.com/collections/industrial","date":"2019-10-15T11:44:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986658566.9/warc/CC-MAIN-20191015104838-20191015132338-00113.warc.gz","language_score":0.8986046314239502,"token_count":110,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__117191387","lang":"en","text":"Motic offers advanced microscopy systems for industrial use. Our optical solutions, combined with our digital cameras and software, provide you with a complete range of products that can be used for multiple industrial applications.\nThe versatility of our microscopes provide high quality images that can be documented, measured and analyzed with our wide range of Moticam digital cameras. These instruments have been designed with the intention of providing you with the necessary tools for inspecting, testing, measuring and improving the quality and safety of your products.\nPlease choose from the following series below:","domain":"optical_engineering"}
{"url":"http://www.nanpa.org/forums/showthread.php?p=1803","date":"2016-02-09T01:25:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701155060.45/warc/CC-MAIN-20160205193915-00133-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.9667185544967651,"token_count":1017,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__28260351","lang":"en","text":"Who would want to do autofocus fine tuning (micro adjustment)?\nI have been shooting with professional photographers and photo trek leaders when the subject of autofocus came up. While all of them agreed that autofocus is a good thing, especially when shooting fast-moving subjects, they did not always feel that autofocus fine tuning of a camera with a lens is necessary to get the best autofocus results. Because I am an engineer by profession and a fanatic about precision, and I always like to get the best results I can get from a camera and lens, I do autofocus fine tuning with all of my camera bodies with each of my lens. However, I do understand that there is a contingent of folks who will never do that fine tuning.\nBy the way, just for clarity, the following names are also used for autofocus fine tuning:\n- Adjusting your lens\n- Micro adjustment\nThese titles all describe the same camera and lens calibration matching that is stored by the camera body for retrieval when you next mount that same lens. Most Nikon and Canon prosumer and professional cameras have this capability.\nSo why would you want to take the time and go to the effort to do autofocus calibration of your camera with each lens if the camera has this feature? The reason most people do this procedure is to assure themselves that the camera and each lens they use on that camera focuses on the subject they want the camera to focus on when they push the shutter button. Pros fine tune to make sure they are getting optimal results from their expensive lenses to make sharper images.\nYou would think that cameras and lens that cost thousands of dollars each would be a perfect match and would focus where they indicate they are focusing every time you shoot an image, but that is not always the case. Whether you use the optical viewfinder or live view when you do your focusing can make a big difference in the accuracy of the autofocus results you get. We will delve into the details of how DSLR cameras perform autofocus in these two modes in another article. For now we will stick with autofocus using the optical viewfinder because it is faster than the autofocus in live view, and it is the mode of choice for a lot of nature photography.\nDSLR cameras use a design called phase detection for autofocus when you are using the optical viewfinder, and the design is not always perfect for a variety of reasons. The biggest reason for the imperfection is slight variations of alignment between a camera body and a lens. This can be caused by a difference in temperature where you are shooting versus the temperature in the facility where the equipment was originally manufactured and aligned. The ware that occurs with lens/camera age and the changing of lens can also change the autofocus perfection of the camera/lens combination. Using a third-party lens can result in imperfect autofocus. Finally, impact to a camera body or lens can change the operation of the autofocus, making the camera/lens combination focus at a different point than you think it is focusing.\nThe imperfections in autofocus usually become an issue when you are shooting in low light with a low aperture or with a telephoto lens. A combination of the two is the worst case.\nIf you only shoot landscapes at an aperture of f/8, then the depth of field of the lens can mask imperfections in autofocus. In that case, the depth of field for a subject at 50 feet could be from 12 feet to infinity so having the camera autofocus improperly by a few feet would probably not show up in the final image.\nHowever, when shooting a subject at 50 feet with a 200mm telephoto at an aperture of f/4 on a full-frame camera, the depth of field is only 4.5 feet. Shooting that same subject with a 400mm lens and the same camera and lens settings gives you a depth of field of 1.1 feet. In both of these cases, having the camera/lens miss focus by a few feet or even a few inches can produce results that you would not want. For example, if you aim at a flying birdís head with that 400mm lens and the autofocus is off by a foot, then part of the birdís wings may not be in focus. You may tolerate that kind of miss focus, but many folks want better results than that.\n(See the posted table to for more examples of depth of field with various lenses and settings.)\nIf you ask professional photographers such as Jim Stamates, Thom Hogan or Greg Downing if they do autofocus fine tuning of their cameras and lens to assure a match between the two, they will answer yes. Thom says he does autofocus fine tuning at the start of each major field trip and especially on trips to environments that are significantly different from the last trip he took. He does the fine tuning at his destination locations. Now that is perfection is action.","domain":"optical_engineering"}
{"url":"https://www.cdrinfo.com/d7/content/ricoh-develops-automotive-head-display-hud-projection-unit-using-laser-scanning-technology","date":"2022-08-17T19:15:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882573104.24/warc/CC-MAIN-20220817183340-20220817213340-00667.warc.gz","language_score":0.9128404259681702,"token_count":445,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__89150310","lang":"en","text":"RICOH Industrial Solutions Inc. has developed Automotive HUD projection unit using laser scanning technology for Automotive Human Machine Interface (HMI) industry.\nThe unit will be used in future Advanced Driver Assistance Systems (ADAS), which are centering on sensing technology and in-vehicle electronics technology.\nHUD is a system to display vehicle information, such as speed and GPS navigation data to a windscreen. Compared to conventional GPS navigation systems, HUD helps reducing the amount of driver's eye movement, which relieves driver's fatigue and the risk of accidents caused by driver's inadequate attention. In addition to these benefits, HUD is expected to play a key role in calling for driver's attention and realization of Augmented Reality (AR) technology in combination with various sensors mounted on the vehicle.\nRICOH Industrial Solutions Inc., using RICOH's laser scanning technology achieved through the development and production of copiers, and also 2-axis MEMS mirror device newly developed for HUD, has developed a projection unit that enables to effectively call for driver's attention by using bright colors which do not blend in to the background.\nThe use of a laser scanning technology also enables higher contrast (more than 10,000: 1) and display of broader range of colors (NTSC Rate: Approx. 190%). Compared to TFT technology, laser scanning technology ia also more vibrant, even at the same luminance.\nThese advantages enable the reduction of the influence of postcard effect, a nuisance factor that draws driver's attention. The postcard effect is a square- shaped leak light coming from the back light, seen in a TFT system, particularly in low illuminance environment.\nIn addition, by using algorithms which take into account the driving situation and human factor, the accurate transmission of important information is enabled.\nFurthermore, to overcome issues of the laser scanning technology such as image quality and reliability , RICOH Industrial Solutions Inc. developed a screen using micro-lens technology, and a 2-axis MEMS mirror device to realize high image quality and reliability (equivalent to AEC-Q101).\nRicoh plans to start serial production of the new HUD system in 2020.","domain":"optical_engineering"}
{"url":"https://thodiamedia.com/learn-photography-terms-for-beginners/","date":"2023-12-11T19:54:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679516047.98/warc/CC-MAIN-20231211174901-20231211204901-00522.warc.gz","language_score":0.9446441531181335,"token_count":7883,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__70362549","lang":"en","text":"A digital camera has an imaging sensor which forms its heart. The imaging sensor is where light rays travelling through the lens barrel gets focused on to in order to form a sharp image. This sensor is what separates a digital camera from an analog one.\nAn analog camera uses either a film or a photo plate to focus light on. There are no electronic circuitry that transfers captured light onto the image processor. There is no image processor, unlike digital cameras. Such cameras captures light by sensitizing the film medium at the back of the camera. That film is then process in a lab to produce negatives which are then used to produce prints / scanned by a negative scanner. Also there are no built-in Color Filter Array (CFA). The mechanical controls of the camera is what controls the shutter and helps in advancing the film after each shot.\nThe digital sensor is actually composed of millions of tiny light sensitive photo-diodes. These photo diodes are similar to small pins. On the top of a typical photo diode is a tiny micro-lens that filters out all but one color in the visible spectrum. These micro-lenses are arranged in a particular arrangement or array.\nThis is true for all light sensors and it is also referred to as a Color Filter Array (CFA). The most popular CFA is the Bayer array. In other words the pixels are capped with tiny micro lenses which filter all wave length of light except for one particular wave length. A standard pixel can come with either a Red, Green or Blue color filter. On any standard sensor there are twice as many Green filters as Red or Blue filters.\nWe just finished reading about pixels. We have a pretty good idea about what it is. But more than pixels you will hear about the term megapixels often. As a matter of fact megapixels drive not only the sales figures of DSLRs, but all digital cameras!\nIt is often placed as an argument that larger the number of megapixels, better is the image quality. We will learn very soon that this argument is only partly correct. It seems that manufacturers and stores selling cameras are bent on pushing a camera on the sole USP of megapixel. As if nothing else matters. But what are megapixels and how would you justify that a larger number of these would produce a better image?\nMegapixels, simply explained equal to one million pixels. In other words 1 megapixel = 1,000,000 pixels. When you hear that a particular camera has 20 megapixel it means that the camera has 20 million pixels. That’s a lot of pixels! Remember, we have just learnt that each pixel is a photo-diode.\nNow, the question is does more megapixel mean better image quality? The answer is both yes and no. Your digital images are formed by the pixels. One tiny dot on a digital image is roughly equivalent to the size of a pixel. More the dots, more are the details. This can be easily demonstrated by taking two images of the exact same scene, shot by two similar cameras with the same lens under the same lighting conditions. Except, that one of the cameras has a 24.1 megapixel sensor and the other one has a 50.6 megapixel sensor.\nYou will notice that the image that was shot with a 50.6 megapixel camera has way too much detail in it than the one shot with a 24 megapixel sensor. Why? Because the larger number of megapixel allowed the sensor to capture even the tiniest aspects of the image with greater detail.\nAnother advantage of a higher number of megapixel is that you can print big. The printing industry uses a standard 300 DPI for printing images. A 50.6 megapixel sensor will be able to produce an image of the pixel dimension 8688 x 5792 pixels. On the other hand a 24.1 megapixel sensor will be able to produce an image of the dimension 6000 x 4000 pixels.\nNow let’s say that you want to print your vacation images. With the 50.6 megapixel camera you would able to squeeze in a large 20” x 30 print. On the other hand with the 24.1 megapixel camera the largest you would be able to print is 11” x 14”. Needless to say with a larger resolution (larger megapixel count) you would be able to print large without pixilating the prints.\nOne major disadvantage of higher megapixel is the larger file size. Larger file size means your memory cards would have be of a higher capacity. Smaller capacity memory cards will exhaust much quicker. You will also need a much larger backup drive to store all your RAW and JPEG images.\nPlus, a larger file size means additional pressure on the buffer. Buffer speed on your camera determines how suitable it is for shooting sports and other continuous shooting requirements. Larger file size takes more time to process and clear buffer thereafter. Therefore, it has a direct effect on the continuous shooting speed of your camera.\nThus, more megapixels means better images, right? No! More megapixels certainly means a greater amount of detail. But it in no way means that your images are going to be ‘better’. Though the term better is a bit dubious and it has much wider ramifications, we are not going to go into the details.\nIf you are mainly going to share your images online, there is no reason to go for a larger megapixel camera. If you are going to watch your images on your 4K TV you only need 4096 x 2160 = 8.84 megapixels. For sharing on social media you don’t even need that many megapixel.\nA pro photographer who knows what s/he is doing can easily make stunning imagery with a 10 megapixel camera. On the other hand, someone who does not know how to use manual mode will probably end up getting snapshot styled imagery even if s/he is given a 50 megapixel top of the line DSLR.\nBayer Demosaicing / Interpolation\nThis is a complex processing mechanism that takes the incomplete color information in the form of red, blue and green and then convert that into a complete image with all the color information. Most common sensors use the Bayer Algorithm This algorithm has twice as many Green filters as Red or Blue filters. The process of converting that information into a proper image is known as Demosaicing and is done by the built-in image processor on the camera or can also be done off-camera using any third party image processing software. This process is also referred to as Interpolation.\nFull-frame sensors basically mimic the size of the older 35mm film. Full-frame sensors are typically 36mm x 24mm in dimension and therefore the image is roughly the size of what a 35mm film would be. Though in itself the size of the sensor does not mean anything, there are critical advantages to using a larger sensor.\nThe term APS-C means Advanced Photo System – Classic. In a much easier to understand meaning it means a sensor that is smaller than a full-frame. APS-C sensors are smaller in size compared to full-frame sensors. How small exactly? Well there is no standardized sizes. Different manufacturers have their own sensor sizes. Roughly, they mimic the size of the older film negatives of the same name. These negatives had the size 25.1 x 16.7mm.\nFor example Nikon’s D7200, an APS-C sensor powered camera, has a sensor size of 23.5mm x 15.6mm. On the other hand Canon’s 7D Mark II, another APS-C sensor powered camera, has a sensor size of 22.4 x 15mm. The sensor size can vary even between two cameras of the same make and segment. For example, the Canon Rebel T6i, which also has an APS-C sensor, but measuring 22.3 x 14.9mm.\nThe image circle of a lens, as the name suggests, is a round one. However, the sensor at the back of the camera is a rectangular one. This is a classic case of taking a square peg to attempt to fill in a round hole. A lens designed for a particular sensor format will cover almost whole of the frame with the exception of the four corners. This four corners will show some amount of darkening depending on the sensor design and the lens being used. This phenomenon is known as vignetting.\nVignetting tends to be present on most lenses with a little bit of exception. However, vignetting tends to be extreme when shooting with a lens designed for a crop sensor format on a full-frame camera. This is because the image circle of the lens will not cover the whole of the sensor.\nVignetting can be easily corrected, at least when the lens and the sensor are compatible, by using the lens profile correction option in Photoshop and Lightroom.\nCrop factor denotes how much a particular sensor is smaller or larger than a 35mm (full-frame) sensor. This is actually expressed as a ratio like 1.5x or 1.6x. Crop factor affects focal length of a lens. Not the actual focal length, but the effective one. Let us understand this is in more detail.\nIf you multiply the crop factor with the focal length of the lens you will find the new effective focal length. Let’s say that a sensor is marked as having a crop factor of 1.5x (e.g., Nikon APS-C cameras have a crop factor of 1.5x). Now, let’s say that you mount a 50mm lens on it. This lens is designed for the full-frame sensor. The smaller sensor will use only a portion of the image coming through the lens. That happens to be the center part of the image coming through the lens. In effect it would appear that you are using a longer lens. Therefore, the result is identical to what it would be if you were using a 75mm lens.\nAny sensor that is smaller than a full-frame sensor is referred to as a crop sensor. A crop sensor crops out the edges of the scene from what would have been captured using a full-frame sensor camera. Resultantly, it would appear that the lens is zoomed in. In other words the lens’ effective focal length gets extended when using with a crop sensor camera.\nFocal length has nothing to do with the size of the lens barrel. Focal length denotes the distance between the point where light rays converge and the digital sensor at the back of the camera where the image is finally formed. This distance is measured in mm. Roughly, it is a measurement of the optical center of the lens to the sensor at the back of the camera.\nLonger that distance or focal length, the longer a lens can see. In effect that also means smaller the viewing angle of the lens. Shorter that distance, the wider is the viewing angle and the shorter the distance that the lens can see.\nIn other words a long lens something like a 70 – 200mm telephoto can see a much thinner slice of the scene compared to a wide angle lens something in the range of 14 – 24mm.\nDynamic Range is a term that denotes how many stops of intensities of light a digital sensor can see between the whitest white and the blackest black in a scene. The term is also applied for all types of cameras as well as for other imaging devices with different annotations.\nA camera with a higher dynamic rage will produce images with higher contrast levels. A camera with a high dynamic range will also likely to have less problems with color banding or aliasing that we see when photographing certain scenes. This frequently happened with older digital cameras.\nThis happens because most outdoor scenes have a greater dynamic range than an average camera can record. This results in the camera trying to ‘even’ the scene out and in the process banding appeared in the images.\nModern digital cameras can record in 14 bit RAW which gives them a lot of latency. An incredible amount of data can thus be recorded in a lossless format. This data is then available when you are post-processing the images.\nIncident light denotes the light that falls on a subject. The terms Incident Light is relevant because of metering. Incident light metering is the best way to meter a scene. This is because when you measure incident light it does not matter whether the subject or the scene has bright colors or dark ones. Incident light metering is also the faster of the two methods to measure light in a given scene.\nReflected Light denotes light that is reflected off of a surface. Just like Incident light it is relevant because of light metering. Reflected light metering is a poor way to meter a scene because it can skew the metering sensors depending on how bright or dark the scene is. Thus, if the scene is bright / has brighter colors, it is likely to tell a light meter that the scene is bright. On the other hand if the scene has an overbearing amount of dark colors it is likely to tell the light meter that the scene is too dark. Reflected Light metering technique is also the slower of the two methods to meter light.\nA Light Meter is a device that measures the amount of light falling on / reflected off of a scene. It basically helps you to set the right exposure values for an ideal exposure of the scene / subject. There are two kinds of light meters – handheld and built-in.\nHand-held Light Meters\nA hand-held light meter is an optical device that measures light falling on a scene. It uses, generally, a translucent dome type structure that has a light sensor built inside it. The dome structure is aimed at the general direction of the camera when you need to meter a scene.\nThe device can also be used to measure reflected light. Hand-held light meters are far more accurate when measuring the correct light value of a scene. This is because they are dependent on the actual incident light and not the light reflected off of a scene.\nBuilt-in light Meters\nThese are a type of light meters that are built into a camera and depend on the light reflected off of a scene in order to measure the light value of the scene. These type of light meters easily get skewed because depending on the average colors in a scene the amount of brightness measured in the scene varies with it. So, for the same amount of light a scene with darker colors will be metered to be too dark (therefore suggesting you push the exposure) and a scene with brighter colors will be measured as too bright (therefore suggesting that you underexpose the shot).\nMatrix metering is a built-in metering mode on all digital cameras. In this mode the whole scene is divided into zones. These zones are individually measured for the amount of brightness and shadows and accordingly the right exposure settings are used that would give an average exposure for the whole of the scene. As an average exposure is given this mode is ideally suitable for the purpose of shooting landscapes and for scenes that have a fairly even lighting situation across the scene. This mode takes into account almost the whole of the scene when metering. However, some amount of preference is given to the AF point that is active. This is why this mode is suitable when you have a subject that is off-center and you are focusing on it.\nThis mode takes into account the center of the frame. Everything else in the frame is disregarded for the purpose of metering. Thus, if you have a subject that is right about at the middle of the frame, this metering mode is perfect. This mode works for backlit situations as well where the key light is behind the subject and therefore you need to be able to meter only the face. This metering mode will also work in situations where you place your subject intentionally towards the middle of the frame. E.g., flower photography or macro photography.\nSpot metering as the name suggests will take into account only a small area of the frame for the purpose of metering a scene. That area is usually 5-10%. In some cameras you can select an AF point and the camera’s metering mechanism will meter the area around that AF point. In other camera systems the spot is not selectable and lies at the center of the frame. The reason why the Spot metering mode is such a useful mode is because it has the inherent ability to meter a very small area. It is therefore possible to aim at something that is neutral (or middle-grey) and be able to make a very tight estimate of what would be an accurate exposure value for the whole f the scene. This is something that all hand-held light meters allow you to do. A reason why these light meters are considered so accurate.\nPartial metering is a metering mode that is exclusive to Canon systems only. Nikon systems don’t have this mode. This mode is exactly like the Spot metering mode that we saw above with an exception. That being that the camera meters a slightly larger area of the frame for metering purposes– about 12 – 15%. Partial metering would be suitable for use when you need to photograph something that is a bit larger. But not as large as the area covered by center-weighted metering. So things like flowers shot from a close distance, a house in the middle of a landscape scene are ideal for use with this metering mode.\nExposure value is a concept in photography. It measures the amount of light that the camera collects as a result of a particular combination of shutter speed and aperture. Exposure value is actually a product of the shutter speed and aperture of your camera system. Exposure value is generally denoted as a number. Each number on the scale corresponds to a specific amount of light. Sliding down to the next higher or lower number means you go higher or lower about two stops of exposure. It is possible to arrive at the same EV using different combinations of shutter speed and aperture.\nThe term exposure compensation is used in conjugation with exposure value. Exposure compensation is all about using an exposure value either over or under of what a light meter suggests is correct for a scene. This is done specifically to push or pull the exposure based on what you think is the right exposure value for the scene. Exposure compensation is frequently used when using the built-in meter of your camera. This is because this is the meter that is likely to get the exposure value incorrect more often. To use exposure compensation press the symbol (+/-) and then turn the command wheel to depending on whether you need to over or under expose the scene.\nAperture is a small hole in the lens that allows light to pass through and enter the camera. Aperture can be enlarged or reduced depending on the requirements of the scene. In other words you can use a large aperture in order to collect a lot of light or a small aperture in order to reduce the amount of light. This obviously depends on what you envision and attempt at capturing.\nAperture is always expressed in f-stops and is written like this – f/2, f/2.8, f/4, f/5.6 and so on. Smaller the number on that scale, larger is the actual size of the aperture and vice versa. That means as you go down the table, aperture will continue to get smaller and smaller. Vice versa as you go up the table. Aperture also controls depth of field.\nShutter speed on the other hand denotes the length of time for which the shutter curtain remains open to collect light. The longer the shutter curtains remain open the more light the camera receives and vice versa. Shutter speed is always referred to as a fraction of a second. The faster is the shutter speed, the smaller is the fraction and vice versa. You will get fractions like 1/100, 1/200, 1/400, 1/800, 1/1600 and so on. As you go down the table shutter speed gets faster and faster, and slower and slower as you go up the table. Shutter speeds at 1 sec and faster are not expressed as fractions. They are expressed in the usual way – 1”, 2” and so on.\nA term that is closely related with shutter speed and for god reason too is Image Stabilization. Image Stabilization is a mechanism that compensates for an inadvertent movement of the camera at the precise moment when an image is being made. The task of image stabilization is to ensure that the resulting image does not turn out to be blurry.\nYou use image stabilization every time you press down the shutter release of your camera without even realizing that you are doing so. Image Stabilization is engaged each time you half-press the shutter release button. That means both acquiring focus as well engaging the image stabilization works using the same button.\nImage stabilization mechanism can be of two basic types. Either lens based or camera body based. Nikon and Canon are two major camera makers that produce cameras that have lens based image stabilization system. Pentax, Sony, Olympus and Samsung are camera makes that use body based image stabilization. Each of these manufacturers refer to their brand of image stabilization by different names. But they essentially do the same thing.\nBody based image stabilization actually moves the sensor whereas lens based image stabilization moves tiny optics inside the lens. The result is the same. Every time the camera moves while making an image as a result of your hand moving, tiny elements inside the lens, or the sensor itself will move to compensate for that movement. Think of them as counterweights for balancing the weight of a tall building which is swaying in the wind.\nThere are advantages and disadvantages of both these types of stabilization mechanics. Body based image stabilization makes all compatible lenses stabilized by default. On the other hand manufacturers with lens based image stabilization produce two versions of their popular lenses. One with image stabilization and one without. Lenses with image stabilization costs more.\nThe argument in favor of body based image stabilization is that it is a better technique. This is because in order to get the full benefit of image stabilization you don’t have to buy special stabilized version of a lens. The argument against is that lens based image stabilization allows you to pay for exactly what you choose to use. Meaning, if you don’t need image stabilization you don’t have to pay extra for that. You can easily get a non-stabilized version of a lens and shoot to your heart’s fill.\nA major advantage of lens based image stabilization is that when stabilization kicks in you can see the effect through the viewfinder. That way you don’t ‘hunt’ around for the subject when using lens based image stabilization systems. Composing is a lot easier that way.\nOn the other hand when you look through the viewfinder of a body based camera, the effects of image stabilization is not immediately seen. It will still do what it is supposed to do but composing through the viewfinder isn’t that easy.\nImage Stabilization comes in different varieties. Let’s look at them.\nThere are different modes of image stabilization. The most important of them is the one that we use on an everyday basis – the plain vanilla mode. This mode simply ‘stabilizes’ any inadvertent movement of the camera while an image is being made.\nTo activate image stabilization you will need to gently half press the shutter release button. Immediately, the stabilization option will kick in and then continue to stabilize the image till you press down the shutter release completely to complete the exposure.\nThe second mode is slightly different. It engages exactly the same way as the first mode though. But in this mode only any perpendicular movements are countered for. Meaning when shooting if your hands move in an up and down motion image stabilization will kick in. If your hands move horizontally, however, image stabilization will not kick in.\nThis is mode is designed for the specific purpose of panning. Panning denotes moving your camera in a tracking motion following a subject that is moving. This mode is ideal for photographing sprinters, soccer players, wildlife moving in a straight line left to right of the frame (or right to left as the case may be) and so on. By not engaging image stabilization for horizontal movement of the camera, when you might be actually moving the camera for panning, this mode opens up a new dimension for photographing with a stabilized lens.\nThere is a yet another mode. A third mode which is designed for a different type of photography. In this mode image stabilization does not get engaged until you press the shutter release fully. By not engaging image stabilization till the very last second you get to see an actual depiction of the action in front you. This mode is ideal for subjects that are moving erratically. Such as a bunch of kids playing in the yard a humming bird, even a squirrel perched on a tree.\nThe letters ISO pronounced in unison isn’t an acronym, though it is sometimes used as one to describe the International Organization of Standardization. The closest similarity with the word ISO is ASA, another term that was used for the exact same purpose, to demonstrate the sensitivity of the imaging medium. Back in the days of analog photography that medium was film and these days it is the digital sensor.\nWhy ISO is important? ISO is closely linked with making images in low light. Low light is a situation when you would be forced to slow down the shutter or increase the aperture in order to capture a lot of light.\nYou might use a flash in such situations, but a flash isn’t always necessary. There are times when a flash can do more harm than good. A flash is a powerful beam of light which is very difficult to control. You don’t even have to use it on-camera to ruin a photo. Even an off-camera flash can be difficult to work with.\nPlus, there are instances when tinkering with either aperture or shutter speed is not feasible. E.g., when you are shooting a portrait and you need to blur out the background and at the same time would want to shoot a sharp image with a fast shutter speed.\nBasically, you need a way to be able to continue shooting with the same aperture and shutter speed, produce the same depth of field you originally went out to shoot and produce the same effect with the desired shutter speed. These are the times when you need to tinker the ISO.\nISO is expressed in numbers. So, you have numbers like 50, 100, 200, 400, 800, 1600 and so on. These are also expressed as stops. Note how the numbers on the scale doubles up at each stop. Please note ISO setting do not affect the amount of light that is collected by the sensor. It only affects what happens after that light is collected. That is why ISO is never considered as a part of Exposure Value.\nISO simplify amplifies the light signal. When the light signal is amplified, it accomplishes the same task as increasing the aperture size or dragging the shutter would have done.\nNoise here refers to digital noise. You would be wondering what does noise got to do with digital photography right? Well noise is closely connected with ISO. As you increase ISO you will probably notice the effects of noise. You have probably seen noise in your own images without ever realizing why they occur.\nNoise refer to the physical black and white dots that appear in a photo especially when you shoot at a higher ISO. If you shoot low light images quite a lot you should have come across. Look closely at the shadow areas of your images. Can you see the white and black specks? Those are noise. More specifically digital noise.\nDigital noise can be best compared with static in sound transmission. Just like when you transmit sound between two points some amount of static is inevitable, digital noise too happens when light signals are captured by the sensor.\nDigital noise is best seen when you shoot images in low light with a higher ISO number. These speckles or grains are seen easily around the shadow areas, because these are the areas where the sensor will try harder to ‘bring up’ the exposure.\nThe major effects of noise in image are the lack of detail and loss in dynamic range. Images shot at lower ISO will have a lot of detail. They also have good dynamic range (elaborated by greater contrast). When you choose a higher ISO number grains will reduce detail, introduce artefacts and you will lose a lot of detail in the process.\nA common misconception about digital noise is that it appears only on images which are shot at a higher ISO. This is wrong. Digital noise is present in every image shot at every ISO. Even at ISO 100. However, at ISO 100 the amount of noise is very negligible compared to an image that was shot in low light and at ISO 3200.\nThe process of cancelling the noise present in an image is known as noise cancellation or noise suppression. There are many ways in which you can cancel noise. Some are done in-camera using built-in software. Others are done after the image has been downloaded on to a computer.\nAll contemporary cameras come with a built-in noise-cancellation application. The technique involves identifying noise and then applying a special algorithm that introduces a slight bit of blurring to reduce noise. This will invariably result in the image appearing plasticky.\nThe same noise suppression can be done in a dedicated image editing software. We would recommend using a dedicated image editing software, than using the built-in image processor of your camera (i.e., shoot in RAW instead of JPEG). Additionally, turn off the default noise suppression feature of you camera.\nShoot in RAW and import your images to your computer in order to do your own image processing including noise suppression manually. Photoshop and Lightroom are two very popular software for noise suppression. But there are others like TopazLabs DeNoise. The latter being a dedicated noise reduction suite\nDepth of field\nWhen you look at an image you can tell where the photographer had focused on. This is the area of the image that will be very sharp. The focus point was placed here. As you look beyond that sharpest area, you will notice that the image appears to be increasingly out of focus. The further you look away from the point of focus, the more it seems to be out of focus.\nHaving said that, even though a large part of the image is out of focus, some of it is still acceptably in focus. This acceptable amount of focus is known as depth of field. Smaller the aperture, larger is that acceptable area of focus. In other words larger depth of field. Larger the aperture, smaller is the acceptable area of focus. In other words smaller depth of field.\nThere are other parameters as well that also impact depth of field. That includes, the size of the sensor, the focal length of the lens, the subject to background distance and so on.\nThe technology of auto-focusing wasn’t around forever. Lenses were always focused manually using various different technologies. To describe auto-focusing one could say that it is the process where the camera / lens uses a built-in motor and sensor that aligns the focusing elements automatically in order to being the subject in sharp focus. The result will be a sharp image produced on the image plane.\nAuto-focus is basically a time-saving technology. It saves critical moments trying to focus on something at a distance and instead produce an image in a shorter time frame by leaving the focusing task to the camera.\nThe technology of auto-focusing has evolved over the years from something which emitted sound waves (in Polaroid systems) in order to lock in focus, to the modern dual-pixel CMOS AF mechanism we find in latest Canon systems which looks for contrast to lock focus. The purpose of all of these technologies is the same – to bring a sharp focus of the subject on to the image plane.\nThe Japanese word bokeh is used in photography to denote the quality of the out of focus effect of your image and not just the out of focus effect alone. It is sometimes incorrectly referred to the blur that comes from using a wide open aperture. To explain it in an even simpler way, blur is not equal to bokeh. On the other hand bokeh does equal to blur.\nNow, quality denotes the smoothness of the out of focus effect. There are certain aspects that determine the quality of the out of focus effect. The primary factor being the number of aperture diaphragm blades. The more the number of aperture diaphragm blades, the rounder and smoother the blur or out of focus effect will be.\nAnother factor that weigh in on bokeh is how wide the aperture can open up to. For lenses that have a small aperture (for example a kit lens with a maximum aperture of f/3.5) bokeh wouldn’t be that nice. On the other hand for an 85mm f/1.8 bokeh would be nice soft, rounded and very smooth.\nThere are many practical applications of bokeh. The most common application being to isolate a subject from its foreground and background. Portrait photography is one area where this is used quite often. Another area is macro and product photography. However, this is not an exhaustive list.\nSelective focusing is the art of focusing on a specific area of the image. The purpose of this is to draw the attention of the viewer to a specific part / aspect of an image. Selective focusing uses several techniques. But the principle element of selective focusing is to use a wide aperture and utilize the shallow depth of field that creates.\nA good example of selective focusing would be when you use a lens such as a 50mm f/1.4 or an 85mm f/1.8 or a 100mm f/2.8 macro to shoot something wide open. Only a small area of the frame, coinciding with the active AF point, is in sharp focus. Everything else is at varying degrees of sharpness.\nThis technique is often used in areas of wedding photography, portraitures and macro photography.\nJPEG vs. RAW\nVery simply, RAW is an untouched, un-manipulated format which has all the details of an image safely preserved and waiting to be adjusted manually by you. JPEG, on the other hand is a processed format. The original RAW image has been processed, either by the camera or an external application. The result is a file which has little to no scope of further alterations without significantly destroying the quality of that image.\nRAW basically retains the original information as captured by the sensor. JPEG on the other hand compresses the information to improve the file size and to cull non-essential information. It is important to know that all cameras actually shoot in RAW by default. It is only after the image is shot is the camera processes it in JPEG. In some cameras you can prevent your camera from converting a RAW image to JPEG by switching to RAW mode.\nWhy would you shoot in RAW? Well to start off RAW is a lossless format. But is that all there is to it? As a matter of fact there is a lot more to it. RAW retains a larger amount of detail in both the shadow and the highlight regions. This is known as dynamic range. RAW images far outperform JPEG images in dynamic range.\nHow much to be precise? JPEG images can retain 256 levels of brightness between the brightest bright and the darkest dark regions in an image. It is also referred to as 8 bit. On the other hand RAW can retain from 4096 to 16384 levels of brightness. That is 12 to 14 bit depending on the camera make and model. The most immediate advantage of this higher level if information is that the images don’t have banding.\nSince the original information is retained, you also have the opportunity to adjust things like white balance and exposure without destroying the image. This is the reason why professionals choose the RAW format because they can then choose the way they want to process their images as per their requirement.\nAlso, and this one is relevant for printing, you can control the color space of the image better by choosing the appropriate one depending on whether you are going to publish the images online or use them for print at output.\nContinuous shooting Drive\nUsually, when you press down the shutter button the shutter curtain opens to make the exposure and then resets for the next shot. This process happens only once. Continuous shooting drive denotes the ability to fire a number of frames one after the other. Nikon systems have three shooting modes, S (Single shot), CL (Continuous Low) and CH (Continuous High).\nThis depends on a number of factors. One of them is how fast the image processor is. The speed of the image processor denotes how quickly it can finish processing one frame and transfer it to the storage for the next frame. Modern high speed image processors can handle anything between 7 to 14 frames per second.\nAnother determining factor is whether you are shooting with continuous Auto Exposure and Auto Focusing or have locked both focus and exposure before the first frame is fired. In the first scenario the camera will acquire focus and adjust exposure before each frame. This slows down the overall speed. In the second scenario focus and exposure is locked before the first frame is fired. That means the camera gains some extra seconds to fire in that many extra frames.\nBuffer speed, meaning the capability of the camera to store photos as they are shot and prior to being processed is also a determining factor. Consider buffer as the internal pipeline of the camera. Greater the capacity, longer the camera can keep shooting. When the buffer overruns the camera slows down. You will probably get one frame per second from down to 7 or 8 per second if you keep shooting.\nAnother factor that determines the continuous shooting speed is the memory card you have installed. A high speed memory card will mean faster continuous shooting speed compared to a slower memory card.\nContinuous shooting speed will also depend on the file size. RAW files have a larger file size compared to JPEGs which are lighter. Thus, if you are shooting RAW files speed will be less compared to when you are shooting in JPEG.","domain":"optical_engineering"}
{"url":"https://itblowsmymind.net/smartphone-thermal-imaging-camera/","date":"2018-12-12T18:53:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824115.18/warc/CC-MAIN-20181212181507-20181212203007-00499.warc.gz","language_score":0.8743045926094055,"token_count":111,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__203825112","lang":"en","text":"This innovative high resolution thermal imaging device offers two image processing modes: superb high-resolution day/night imaging and basic thermography. Small enough to fit in your pocket and combined with a set of interchangeable lenses, Therm-App provides top quality thermal capabilities and the advantages of an open-source platform.\nSmartphone Thermal Imaging Camera\nNo one can hide from the lens of the smartphone thermal imaging camera. Once mounted on your smartphone, this 384×288 pixel resolution camera is capable of detecting a human being up to 1600 feet away in total darkness.","domain":"optical_engineering"}
{"url":"https://2-air.nl/services/video-productions/films/","date":"2024-04-20T10:22:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00526.warc.gz","language_score":0.9153876304626465,"token_count":176,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__139725506","lang":"en","text":"While flying predefined routes above an area or object, we take overlapping pictures. These pictures get processed to acquire accurate measurements with surface points, this technique is called Photogrammetry. The surface points and images can be translated into high-resolution and high-accuracy orthophoto’s and 3D point cloud data. These data sets can be repurposed into useable 3D models for various composition purposes. CGI constructs have never been easier to create.\nIntel Falcon 8+\nIf you’re looking for realistic 3D environment for a game or film, we can do just that. With the Intel Falcon 8+ system we deliver best-in-class safety and advanced performance ideal for inspection and close mapping. With a 36MP high resolution payload, we boast a full frame sensor which allows us the capture even the finest details.","domain":"optical_engineering"}
{"url":"https://www.vartotechnologies.com/1_3_type_CMOS_image_sensor_p/evihd1.htm","date":"2022-12-07T19:50:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711218.21/warc/CC-MAIN-20221207185519-20221207215519-00403.warc.gz","language_score":0.9012116193771362,"token_count":270,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__98393994","lang":"en","text":"rooms and boardrooms everywhere are going HD, and Sony's EVI-HD1 takes\nthe headache out of this transition with the flip of a switch -\nliterally. Sony is adding a high-definition model to its EVI camera\nseries. Since it is also compatible with standard definition (SD), this\nunique p/t/z camera allows you to take the first step in HD migration.\nThe EVI-HD1 camera combines a high-quality HD color video camera with\nthe flexibility of remote pan/tilt/zoom operation. With 14 formats to\nchoose from (including eight HD types and six SD video formats), this\nnew dynamic camera allows end-users to decide when they are ready to\nmigrate from SD to HD. The EVI-HD1 is compatible today with existing\nvideoconferencing systems and will be compatible tomorrow with HD based\nones. It also inherits many outstanding features from the EVI-D100\nP/T/Z camera and couples these with superb HD picture quality. Smooth,\nhigh-speed pan/tilt operation, 16x9 aspect ratio images and a built-in\n10x optical zoom/wide angle lens, make the EVI-HD1 ideal for small to\nmedium size conference rooms.","domain":"optical_engineering"}
{"url":"https://apollolightandsupply.com/lighting-manufacturer-partners/","date":"2020-10-28T19:28:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107900860.51/warc/CC-MAIN-20201028191655-20201028221655-00412.warc.gz","language_score":0.9013078212738037,"token_count":323,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__208905323","lang":"en","text":"Acuity Brands Lighting\nOne of the world’s leading providers of lighting and building management solutions for commercial, institutional, industrial, infrastructure, and residential applications.\nA leading green lighting technology manufacturer specializing in innovative, next-generation LED lighting solutions to improve lighting quality and efficiency, and to enhance the environment through reduced energy consumption.\nTheir focused line of LED modules, retrofits and luminaires are lighting multi-family housing, hospitality venues, educational institutions and sporting complexes. Their custom-designed solutions are utilized in tunnels, airport runways, marine vessels and entertainment facilities.\nDelivers a range of innovative and reliable indoor and outdoor lighting and controls solutions, specifically designed to maximize performance, energy efficiency and cost savings. Eaton serves customers in the commercial, industrial, retail, institutional, residential, utility and other markets.\nA leader in high bay lighting applications, Flextronics helps businesses and property owners provide superior quality and highly energy-efficient LED lighting solutions for smarter, more efficient commercial and industrial facilities.\nThis one-stop shop has been engineering lighting solutions for over 70 years. Whatever technology you need, you can count on Keystone for quality and reliability.\nBrownlee Lighting is proud to manufacture energy efficient lighting fixtures that meet and exceed industry expectations in quality, durability and price.\nSK & Associates\nSK & Associates represents manufacturers and products with unique, innovative and extensive offerings to project design challenges that the architecture, environments, energy requirements and pricing may demand.\nColumbia Lighting manufactures an array of commercial and industrial luminaires, leading the industry with exceptional efficacy, optical performance and quality.","domain":"optical_engineering"}
{"url":"https://www.sablearms.co.za/product/rudolph-h1-4-12x50-t3-reticle/","date":"2024-04-16T20:41:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817106.73/warc/CC-MAIN-20240416191221-20240416221221-00663.warc.gz","language_score":0.9200109243392944,"token_count":181,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__56165244","lang":"en","text":"RUDOLPH H1 4-12X50 T3 RETICLE\nThe Hunter H1 4-12x50mm Scope with T3 Reticle offers the best of both worlds – a large exit pupil for low light hunting combined with the greater resolving capability of higher magnification. This scope offers a full 33% more magnification at the high end than a traditional 3-9×40. A huge ocular, generous field of view and maximum light transmission for dawn to dusk brightness and resolution makes this scope the “must have” for any kind of hunting.\nRudolph Optics riflescopes are equipped with outstanding optics which delivers a clear, bright image, even under difficult conditions, ensuring a reliable aim at all times. Our dedication to craftsmanship and fine quality, ensure that every optic meets our high standard, so that you may enjoy complete confidence every time you use it.","domain":"optical_engineering"}
{"url":"http://www.coutomaquinaria.com/articulo.php?id=120&imgid=291","date":"2020-01-24T02:16:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250614880.58/warc/CC-MAIN-20200124011048-20200124040048-00146.warc.gz","language_score":0.7414810061454773,"token_count":213,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__103607052","lang":"en","text":"· Portable and lightweight, weight: 0,5 kg.\n· Reduced dimensions: Ø75x H300 mm.\n· Work temperature: -20ºC/ +80ºC.\n· For inspection jobs or lighting of reduced dimension spaces.\n· 100-150 watt./ 220 volt bulb.\nRCFL-90- Helmet Flashlight ATEX\n· Portable and light weight, weight: 215g.\n· High density LED bulb with 90 lm luminous flux & 3000 lux illumination grade.\n· Two types of light: bright light with a duration of over 15 hours & another softer light that can last up to 40 hours of use.\n· Rechargeable battery with charger 230v.\n· Work temperature: -20ºC/ +40-C.\n· For inspection or requiring a concentrated light lighting up to a range of 40 meters.\n· Conforms to equipment and protective systems intended for use in potentially explosive atmospheres 94/9/EC: I M 1- 62013-1:2002.","domain":"optical_engineering"}
{"url":"http://aboutsleepdisorders.blogspot.com/","date":"2017-04-28T15:47:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122996.52/warc/CC-MAIN-20170423031202-00502-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9231545329093933,"token_count":591,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__180987844","lang":"en","text":"Sleep disturbances increase as we age. Some studies report more than half of seniors 65 years of age or older suffer from chronic sleep disturbances. Researchers have long believed that the sleep disturbances common among the elderly often result from a disruption of the body’s circadian rhythms — biological cycles that repeat approximately every 24 hours.\nIn recent years, scientists at Rensselaer Polytechnic Institute’s Lighting Research Center and elsewhere have demonstrated that blue light is the most effective at stimulating the circadian system when combined with the appropriate light intensity, spatial distribution, timing, and duration. A team at the Lighting Research Center (LRC) has tested a goggle-like device designed to deliver blue light directly to the eyes to improve sleep quality in older adults.\n“Light and dark patterns are the major synchronizer of circadian rhythms to the 24-hour solar day,” said Mariana Figueiro, Ph.D., Lighting Research Center Light and Health Program director and principal investigator on the project. “Light stimulus travels through the retina, the light-sensitive nerve tissue lining the back wall of the eye, to reach the master clock in the brain. However, a combination of age-related changes in the eye and a more sedentary lifestyle may reduce the amount of light stimulus reaching an older person’s retina, therefore reducing the amount of light for the circadian system.”\nAs we age, the lens in the eye thickens and the pupil shrinks, reducing the amount of light passing through to the retina. Making matters worse, in some cases, such as with persons with Alzheimer’s disease, the circadian system may require a stronger light stimulus due to deteriorating neural processes in the brain. These physical and neural changes can lead to muted signals to the circadian system. Factor in environmental influences, such as an indoor lifestyle with less access to daylight, and you have a perfect scenario for the development of irregular sleep-activity patterns, according to Figueiro.\nThe research team explains that a marked increase in daytime lighting levels can counteract the age-dependent losses in retinal light exposure by providing a stronger signal to the circadian system. However, the color and intensity of commercially available lighting systems, like those used in senior residences, assisted-living facilities, and nursing homes, are designed for visual effectiveness and minimal energy use and not necessarily efficacious for generating light to stimulate the older circadian system.\nCommercially-available “white” light sources advertised to treat circadian-related sleep disorders are usually very bright light and can cause glare and compromise compliance.\nIn this project, the light-treatment prototype tested by Figueiro’s team was developed by Topbulb.com, LLC, based on prior LRC light and health research. The device offers an alternative approach using specially designed goggles that deliver blue light spectrally tuned for optimum circadian response.\nVIA : Sciencedaily","domain":"optical_engineering"}
{"url":"https://iapps.ir/app/lumu-light-meter/855603941","date":"2024-04-25T04:51:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00357.warc.gz","language_score":0.8675054907798767,"token_count":226,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__22394209","lang":"en","text":"The light metering tool for every great image maker.\nUse the standalone app as a reflective light meter or use it in combination with Lumu Power hardware for professional Flash and Color Temperature measurements.\nLumu Power is an easy-to-use digital incident color and light meter that works seamlessly with the free Lumu app to deliver Color Temperature, Illuminance, Spot, Ambient, and Flash Exposure metering functionality on your iPhone.\nA new expression of what a light meter can be, Lumu meets the needs of enthusiasts, professionals, and students who find existing light metering solutions too bulky, expensive, and complicated.\n“The Lumu Power is without any doubt the most full featured light meter I have ever owned. It’s tiny, it weighs hardly anything, it manages to offer a feature set that expands way beyond what most will ever need from such a device.” - www.35mmc.com\nWith Lumu Power:\nVisit http://lu.mu/ to learn more.","domain":"optical_engineering"}
{"url":"http://www.synapseimaging.co.kr/bbs/board.php?bo_table=eng_pro03","date":"2020-07-03T12:51:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655882051.19/warc/CC-MAIN-20200703122347-20200703152347-00534.warc.gz","language_score":0.9303641319274902,"token_count":282,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__242073179","lang":"en","text":"In-line 3D Solder Paste Inspection System\n3D SPI equipment performs 3D inspection on defects in height, volume, area, shape, bridge and position of solder on PCB after screen printing in the SMT process, this applies the unique 3D measurement technique of our company called FAHP, which satisfies short line cycle time required by the PCB manufacturing process, accommodates for parts with micro pitch, resolves the problem of measurement error caused by substrate bending, and settles the problem of solder paste shadow and mirror reflection. This product, based on such innovative technology, provides an optimal solution for zero defect screen printer process based on faster inspection rate, higher defect detection rate, lower false defect rate and higher measurement precision than existing inspection systems.\nDesktop 3D Solder Paste Inspection System\n3D Master 3000 is designed to measure the shapes of 3D surfaces of objects that measure from few microns to a few millimeters, and is commonly used for measuring solder paste samples spread over PCBs automatically and 3-dimensionally, and testing their conformity. For SMT process management, this machine is being recognized as the most cost-effective equipment for setting up process conditions for screen printers. In addition, this equipment is used for measuring the thickness of small electronic components, the thickness of the pads and pattern on bare PCB. Automatic inspection and measurement is achieved using the automatic X-Y scan covering wide ranges.","domain":"optical_engineering"}
{"url":"https://www.dataweek.co.za/15136r","date":"2022-07-07T04:52:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104683683.99/warc/CC-MAIN-20220707033101-20220707063101-00529.warc.gz","language_score":0.8719179034233093,"token_count":214,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__130365226","lang":"en","text":"STMicroelectronics’ X-NUCLEO-LED12A1 LED driver expansion board for STM32 Nucleo features four LED1202 devices that can drive up to 48 LEDs. The LED1202 is a 12-channel, low quiescent current LED driver which guarantees 5 V output driving capability. Each channel is able to provide up to 20 mA with a headroom voltage of only 350 mV. The output current can be adjusted separately for each channel through 8-bit analog and 12-bit digital dimming control.\nThis expansion board comes with an additional LED panel board that houses two LEDs matrices: a 6x8 white LED matrix and a 4x4 RGB matrix. LED matrices can be supplied via an external power supply to reach the maximum available luminosity.\nRead more...Digital ambient light sensor EBV Electrolink\nThe device is a highly sensitive light-to-digital converter that transforms light intensity into a digital signal output through an I2C digital interface.","domain":"optical_engineering"}
{"url":"http://ocessayhqru.njdata.info/an-analysis-of-atmospheric-optical-effects-in-the-sky.html","date":"2018-10-23T12:40:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516135.92/warc/CC-MAIN-20181023111223-20181023132723-00346.warc.gz","language_score":0.8833399415016174,"token_count":1221,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__208246187","lang":"en","text":"Because of this, the tiny gas molecules that make up our earth’s atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky blue sky within the visible range of light, red light waves are scattered the least by atmospheric gas molecules. We need to observe and analyze air temperature, atmospheric pressure, atmospheric humidity, visibility, wind direction and wind speed, cloud distribution, cloud type, and precipitation amount and type to obtain the most useful information, observations of the state of the atmosphere should be made at many places and as continuously as possible. Radiation (emr) electro-optical sensors and systems utilize this emr to form some image of a target scene these sensors operate in a relatively small portion of the electromagnetic spectrum 2 electro-optical sensors detect targets by using visual, near-infrared, and far-infrared imaging a visual imaging.\nThe sky reflector-net expands the view of the sky to conceptualize an optical the fulton center’s flow of 300,000 daily users gives the sky reflector-net . Effects of the earth's optical spectroscopy: sky this leads to some fundamental differences in data acquisition and analysis between the near-ir and the optical. These phenomena are caused by special atmospheric as with optical phenomena, the sky cover is the most important factor in the development of .\nRayleigh scattering of sunlight in the atmosphere causes diffuse sky radiation, which is the reason for the blue color of the sky and the yellow tone of the sun itself. Atmospheric optical effects rainbows, mirages, auroras, the twinkling of stars, and even the blue color of the sky are all considered atmospheric optical effects these visual events in the sky occur when light bounces off or is bent by solid particles, liquids droplets, and other materials present in the atmosphere. The analysis conducted depends basically on statistical the atmosphere has effects on the laser beam quality of free space optical communications in . Aerosol optical retrieval and surface reflectance from quantitative analysis of atmospheric optical properties and surface sun-sky radiometer and a . Many difficulties in assessing the climatic effects of atmospheric the total uncertainty in aerosol optical depth and sky uncertainty analysis .\nAdaptive optics can observe the sky in reducing the effects of dynamic optical the system real-time adaptive optics, interference analysis of light by . Characterization of atmospheric turbulence effects over there is a growing interest in development of optical systems analysis of atmospheric turbulence . All-sky night brightness maps giving an analytical expression for the sky brightness and alleviating the effects of zernike analysis of all-sky night . Case study of the effects of atmospheric aerosols and regional school of earth and atmospheric the assessment is based on estimates of aerosol optical . Effect of atmospheric turbulence on propagation properties of optical vortices formed by using coherent laser beam arrays li-gang wang,1, 2 wei-wei zheng, 1 and li-qin wang.\nThe type of optical effect that results greatly depends upon the type of particles the light encounters and on the wavelength of the light for this reason, the optical effects discussed in this module have been grouped according to the following classifications of atmospheric particles: air, dust and haze, ice crystals, and water droplets. Pdf | sensitivity studies are conducted regarding aerosol optical property retrieval from radiances measured by ground-based sun-sky scanning radiometers of the aerosol robotic network (aeronet). The effect of the earth's atmosphere the effect of the atmosphere on our view of the sky is called “seeing,” and it varies by location on the sky and over time. Free space optical wireless link also known as “free space optical communication “(fso) free space optics (fso) communications, also called free space photonics (fsp) or optical wireless, refers to the transmission of modulated visible or infrared (ir) beams through the atmosphere to obtain optical communications.\nThe most obvious effect is that of absorption, most radiation incident on the earth’s upper atmosphere does not reach the ground the atmosphere is effectively opaque to all but some radio wavebands and light in the optical window. The combination of optical (slr) and microwave (gnss, vlbi, doris) observation techniques requires special attention to be paid to atmospheric pressure loading corrections because of the so-called blue-sky effect the blue-sky effect is directly related to the weather-dependency of the slr observations. Remote sensing is the measurement or analysis of properties of the atmospheric transmittance information satellites used in optical remote sensing . Abstract— atmospheric turbulence under clear sky conditions is an impairment of the atmospheric channel that greatly affects propagation of optical signal in the troposphere.\nStudents in the atmospheric chemistry and air quality program at davis chemical and optical properties of atmospheric and sky play host to a great . Martindale's calculators on-line center astrophysics, astronomy, astrochemistry, astrobiology & cosmology center section 2: d the us epa has funded the institute for the environment to establish a community modeling and analysis system (cmas) martindale's calculators on-line an analysis of atmospheric optical effects in the sky center .\nOcean optics web book is a collaborative web-based book on optical and has a that is mostly sky reflectance the atmospheric path radiances are noticeably . International journal of computer applications (0975 – 8887) volume 106 – no 12, november 2014 22 effects of atmospheric turbulence and pointing errors on average capacity of free-space optical. For a circumhorizon arc to occur, the sun must be high up in the sky, above 58 degrees the fact that the sun does not appear in this picture is another clue it’s not iridescence” george also very kindly went into an earthsky article about iridescent clouds and found three photos that are really circumhorizon arcs.","domain":"optical_engineering"}
{"url":"https://techinformed.com/singapore-trials-xr-glasses-to-ensure-vessels-are-shipshape/","date":"2023-09-21T11:15:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506027.39/warc/CC-MAIN-20230921105806-20230921135806-00513.warc.gz","language_score":0.9344190359115601,"token_count":718,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__143509699","lang":"en","text":"Singapore trials XR glasses to ensure vessels are shipshape\nA Singapore shipyard is piloting 5G-powered AR/VR smart glasses for remote site inspections and monitoring, as part of a government grant to drive the commercialisation and adoption of 5G applications.\nThe project is being funded by the Infocomm Media Development Authority’s (IMDA) 5G innovation programme and sees offshore and marine infrastructure giant Keppel O&M partner with fellow Keppel Corporation firm, the digital network operator M1.\nThe pilot will run on M1’s 5G network, which was rolled out in Singapore two years ago.\nAccording to a statement released by Keppel, when equipped with a camera lens, microphone, micro speaker, and cellular or WIFI reception, the AR and VR enabled smart glasses can perform real time analyses and provide data to the wearer.\nThe device also enables the wearer to communicate with a receiver or control room and, when equipped with a micro project, can project a digital overlay of text and images within the wearer’s field of vision.\nThe OM player has identified several use cases for the glasses, which will be worn by site inspection personnel for asset maintenance work.\nControlled via voice commands, Keppel claims that the device replaces the need for manual check sheets and drawings and can facilitate remote coaching.\nThe firm estimates that this application has the potential to cut on-site quality inspection hours “by up to 50%”.\nOther test cases include remote monitoring with digital twin virtualisation, which allows field engineers to capture and stream live sensor data via the AR glasses back to the main office for real time guidance.\nThis set up, claims Keppel, provides a common platform for engineers and off-site support to trouble shoot and rectify issues, which it estimates will improve field engineers’ efficiency by 40%.\nVirtual walk throughs of vessels are also an option, enabling Keppel engineers, customers and ship regulators to conduct pre-construction feasibility assessments simultaneously.\nKeppel O&M’s CEO Chris Ong added that his firm first tried out the glasses during the Covid-19 pandemic to conduct an inspection of a new vessel with a classification regulator. The intention now, he added, was to use the specs – along with a host of other digital technologies – to achieve its vision for a ‘Yard of the Future.’\nManjot Singh Mann, CEO of M1, noted that the use of smart glasses could help solve critical challenges in Singapore’s maritime industry and pointed out that the pilot project could be scaled and replicated to increase operational efficiency and safety across a range of industries.\nOther 5G testbeds that have received IMDA funding include the use of Microsoft’s HoloLens 2 to render 3D images and holographic projections in holomedicine. Applications such as procedure and surgical navigation at the National University Health System (NUHS).\nThe news follows Samsung’s partnership announcement earlier this week with AR headwear firm NuEyes to deliver a pair of smart glasses aimed at the healthcare sector to support training and patient care applications.\nSubscribe to our Editor's weekly newsletter","domain":"optical_engineering"}
{"url":"https://www.sunfreeled.com/sunfree-high-quality-led-street-lamp-manufacturer-for-playground.html","date":"2021-09-28T11:14:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060677.55/warc/CC-MAIN-20210928092646-20210928122646-00605.warc.gz","language_score":0.9537169933319092,"token_count":145,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__125893354","lang":"en","text":"1. As an electronic and optical device, SUNFREE best led street light has been investigated and improved many times. We spent a lot of energy and time to improve its lighting performance.\n2. Wearing this product will give people a feeling of stability. People will feel surefooted when their feet land on the ground with a buffering effect provided by this product.\n3. Every detail of this product has been carefully examined and checked to ensure the high quality.\n4. The product is guaranteed to be equipped with stable and reliable performance.\n1. Staff working in Sunfree Lighting Limited are all well-trained.\n2. SUNFREE aims to be a leading best led street light supplier. Get price!","domain":"optical_engineering"}
{"url":"http://vivc.ir/researches/A3.html","date":"2019-12-11T13:21:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540531917.10/warc/CC-MAIN-20191211131640-20191211155640-00474.warc.gz","language_score":0.942913293838501,"token_count":222,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__147121611","lang":"en","text":"Measuring movement is essential in many experiments. Although measuring a transitional movement is rather easy, rotational and random movement are challenging! One the other hand, measuring with laser is expensive and sensitive. However, by using a simple camera it is possible to track shapes and colors. This has been used in many industries specially for car accident test.\nTo measure a rotating object around a shaft, i used a camera to capture images of an indicator with four circles:\nThe image processing is done in Matlab software. The code starts to find the smallest circle first and saves the location as the shaft center. Then draws a line to other circles and finally measures the rotation by simple trigonometry. processed image\nIt is also possible to track colors in Matlab. The following movie shows tracking of the red rectangle for measuring the deflection of device. Here the blue text shows the deflection in mm:\nNeedles to say, calibration is necessary in this method and it should be done every time the camera (reference point) moves.\nThe Matlab code for tracking circles can be downloaded from here.","domain":"optical_engineering"}
{"url":"https://sheen-demo.myshopline.com/pages/5298275265595137120","date":"2023-09-29T14:22:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510516.56/warc/CC-MAIN-20230929122500-20230929152500-00012.warc.gz","language_score":0.9492405652999878,"token_count":355,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__95115025","lang":"en","text":"The technical difficulty required for the production of LED lights is relatively high, one is the choice of LEDs. Now the general LED brightness is difficult to reach a certain level, and the headlights strictly require the light shape and the illuminance of the corresponding points. For car headlights:\n1. The optical design needs to be carried out according to the standard requirements for the light shape, including the LED brightness, beam distribution, beam angle, etc. to select the design. Although LEDs can save energy and are small in size, their beam angles are narrow, and they have high requirements for LED heat dissipation. Therefore, special attention should be paid to the treatment of uniform light when LEDs are used as car lights. The other is the heat dissipation treatment of the LED. If the heat dissipation is not done well, it will not only affect the life of the LED, but also cause the LED to have light attenuation in the light-emitting device. Based on these two limitations, LED lights have not been well received. Development, only some high-end cars are assembled.\n2. LED quality control and light distribution verification during production. For car lights, the requirements for signal lights are relatively simple compared to headlights. However, it is mainly to solve the problem of uniform light of LED, that is, how to make the output light of LED evenly distributed, and to solve the problem of heat dissipation of LED.\nAfter the LED lights are made, they need to go to the corresponding institutions for performance testing and 3C certification. Now the state requires the lights to pass the 3C certification.\nFree Customization Solution\nOur LED come from the minds of Sheen' respected designers with more than 30 years' experience in the industry.","domain":"optical_engineering"}
{"url":"http://simonaaum666.tblogz.com/two-elements-you-do-not-really-have-knowledge-of-in-connection-with-lasik-eye-surgical-procedures-5415664","date":"2019-01-19T08:44:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583662863.53/warc/CC-MAIN-20190119074836-20190119100836-00308.warc.gz","language_score":0.9561640620231628,"token_count":885,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__400013","lang":"en","text":"Two Elements You Do Not Really Have Knowledge Of In Connection With LASIK Eye Surgical ProceduresThe eye can be taken a look at with relative ease regarding both its function and its structure. A functional assessment includes the capability to move in the orbit and the reaction of the student to light and accommodation.\nThe function of the eye may be tested in numerous methods. The client may be asked to identify illuminated letter or objects of differing sizes on what is referred to as the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye may be made in several methods. Tension within the eyeball is measured by a \"tonometer.\" In particular diseases, particularly in glaucoma, the stress in the eyeball is increased noticeably.\nIt must be well remembered that a patient with an eye issue might have other issues. Often other physical conditions are main and affect the eye as a repercussion. The look of the eye can signal the patient and the physician to difficulties in some disruptions of other parts of the body even prior to other signs provide themselves.\nOne's reliance on sight is emphasized when one faces a possible or temporary long-term loss of this essential sense. When restorative procedures are sought, specific types of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some individuals are troubled with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nEssentially, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgery is another kind of vision correction. The only difference is that with this kind of surgical treatment, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, permitting much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people must understand. Most likely, the main reason that this kind of eye surgical treatment has ended up being well accepted is due to the fact that the majority of its cases had actually succeeded.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate portions of the eye, the majority of people state that the operation can be really risky.\nTo puts it simply, a simple error could almost trigger an individual's lifetime loss of sight. It is important to think about numerous factors prior to choosing whether LASIK eye surgery is the ideal restorative measure one has to go through.\n2. It is not a perfect treatment\nLASIK eye surgical treatment might remedy this your vision however it does not necessarily suggest that it can offer you a best vision. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily suggest they have perfect vision.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the perfect eye surgical treatment the way the majority of people view it\nConversely, the examination of the structural part of the eye may be made in numerous methods. It must be well kept in mind that a client with an eye problem may have other issues. Frequently other physical conditions are primary and affect the eye as a consequence. The appearance of the eye can inform the doctor and the client to difficulties in some disturbances of other parts of the body even before other signs present themselves.\nLike its tangible equivalent, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://www.tiangenbiotech.com/product/tgel-image-system/","date":"2023-12-10T07:03:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101282.74/warc/CC-MAIN-20231210060949-20231210090949-00668.warc.gz","language_score":0.9141795635223389,"token_count":150,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__312945553","lang":"en","text":"TGel Image System is the smallest and lightest portable blue gel imaging system on the market today. After being connected with 12 V direct current, it can be switched freely between blue and white light sources to easily control the observation of various experimental gels (agarose gel and SDS-PAGE gel). The 470 nm blue light can be perfectly compatible with various safety dyes and EB, and the detection sensitivity of DNA can be as low as 2 ng. TGel Image System has built-in high sensitivity camera sensor, and its high resolution CMOS lenses can provide high-resolution pictures to meet the needs of all scientific and technological documents.\n|Cat. No ||Packing Size |\n|OSE-470P ||1 Set |","domain":"optical_engineering"}
{"url":"http://gbhsweb.glenbrook225.org/gbs/science/phys/Class/refrn/u14l5eb.html","date":"2018-01-19T07:44:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887832.51/warc/CC-MAIN-20180119065719-20180119085719-00109.warc.gz","language_score":0.9239698052406311,"token_count":630,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__37308846","lang":"en","text":"Lesson 1: Refraction at a Boundary\nLesson 5: Image Formation by Lenses\nDiverging Lenses - Object-Image Relations\nPreviously in Lesson 5, ray diagrams were constructed in order to determine the location, size, orientation, and type of image formed by double concave lenses (i.e., diverging lenses). The ray diagram constructed earlier for a diverging lens revealed that the image of the object was virtual, upright, reduced in size and located on the same side of the lens as the object. But will these always be the characteristics of an image produced by a double concave lens? Can convex lenses ever produce real images? Inverted images? Magnified Images? To answer these questions, we will look at three different ray diagrams for objects positioned at different locations along the principal axis. The diagrams are shown below. (Note that only two sets of incident and refracted rays were used in the diagram in order to avoid overcrowding the diagram with rays.)\nThe diagrams above shows that in each case, the image is\nUnlike converging lenses, diverging lenses always produce images which share these characteristics. The location of the object does not affect the characteristics of the image. As such, the characteristics of the images formed by diverging lenses are easily predictable.\nAnother characteristic of the images of objects formed by diverging lenses pertains to how a variation in object distance effects the image distance and size. The diagram below shows five different object locations (drawn and labeled in red) and their corresponding image locations (drawn and labeled in blue).\nThe diagram shows that as the object distance is decreased, the image distance is decreased and the image size is increased. So as an object approaches the lens, its virtual image on the same side of the lens approaches the lens as well; and at the same time, the image becomes larger.\nThe following questions pertain to the image characteristics of all types of optical devices discussed in the last two units - plane mirrors, concave mirrors, convex mirrors, converging lenses, and diverging lenses. Use your understanding of the object-image relationships for these three types of mirrors and two types of lenses to answer these questions.\n1. How can a plane mirror, concave mirror, convex mirror, converging lens and/or diverging lens be used to produce an image which has the same size as the object?\n2. How can a plane mirror, concave mirror, convex mirror, converging lens and/or diverging lens be used to produce a magnified image?\n3. How can a plane mirror, concave mirror, convex mirror, converging lens and/or diverging lens be used to produce an upright image?\n4. How can a a plane mirror, concave mirror, convex mirror, converging lens and/or diverging lens be used to produce a real image?\n5. The image of an object is found to be upright and reduced in size. What type of mirror and/or lens is used to produce such an image?\n© Tom Henderson","domain":"optical_engineering"}
{"url":"http://landenyvog334.jiliblog.com/5124935/eye-surgical-treatment","date":"2018-05-22T00:10:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864572.13/warc/CC-MAIN-20180521235548-20180522015548-00639.warc.gz","language_score":0.9549766778945923,"token_count":1318,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__123539656","lang":"en","text":"Eye Surgical procedure has actually come to be a mainstream approach of vision adjustment, and this article will describe the benefits and also negative aspects of three different methods being supplied to the medical customer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and also is an eye surgical system which permanently corrects vision by eliminating a thin layer of the cornea. This procedure works best on clients with modest to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) and astigmatism related to nearsightedness, as well as who have thick corneas. It is one of the most well-known medical vision correction approach.\nPeople with typical eye sight see things plainly due to the fact that pictures are brought into an appropriate centerpiece by the cornea and lens of the eye. Ideally, the cornea's curvature is evenly matched to its length in a typical eye. People with astigmatism, nearsightedness or hyperopia have actually off-and-on shaped corneas, so the things seen are not focused effectively. LASIK adjustments corneal shape by accurate removal of corneal tissue, as well as by doing so remedies the eyes' focusing power.\nThere are, nonetheless, threats to LASIK eye surgical treatment.\nThere is a remote chance of total loss of vision. If this happens, it is typically due to the fact that the individual had a pre-existing problem which needs to have averted the surgical procedure to begin with, such as maternity, cataracts, joint inflammation, diabetes mellitus, glaucoma, or lupus. People with big students are additionally poor prospects for LASIK. Dry eye disorder will be exacerbated by this procedure.\nA couple of people whine that they permanently see \"ghost\" pictures, have blurred vision, lessened comparison as well as negative evening vision. When LASIK wased initially presented, 5% of individuals had post-operative issues; however, refinements in the procedure have caused this rate to go down to less compared to 1% if LASIK is done by knowledgeable practitioners and also individuals are effectively evaluated prior to surgical treatment. If issues do happen, they could frequently be resoved by a retreatment.\nFDA has accepted LASIK laser eye surgery because 1998. While there are a great deal of completely satisfied patients, there are however no long term research studies about its impacts. Realize the restrictions and the dangers of LASIK eye surgical treatment prior to you sigh for the treatment.\nThough less popular, these little implants could enhance vision in individuals with light to modest myopia without the threat of permanent eye damages intrinsic in the cells removal strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which stretch it to think a flatter shape. Though slightly less specific compared to LASIK, they are removeable and also exchangeable, so if the person has an unanticipated over- or under-correction, the dental implant could be gotten rid of as well as an additional of a different size placed to get the wanted correction. The implants lie beside the cornea, so the central visual area is entirely undamaged and undamaged, as well as the stamina of the cornea is undiminished, making it a better option for pilots and those that take part in contact sports where eye injury is a possibility.\nIntacs are unsuitable for severe myopia as well as more than minor astigmatism (1.00 diopters), as the cornea could just be extended so far. If the Intacs are removed, vision returns to its preoperative level. In addition to vision improvement, Intacs are also made use of to treat keratoconus.\nIntacs are FDA approved and also Ten Years studies have disclosed no major problems with Read Full Report Intacs as well as very few person issues; nonetheless, because the treatment takes extra training than LASIK, there are less eye surgery More hints clinics offering it. However, the Intacs website gives a checklist of practitioners in each state, as well a couple of in Canada, Europe and also Mexico.\nDue to the fact that many individuals do not intend to take the chance of LASIK and Intacs could not assist those with serious vision problems, intraocular lens implants (IOL) are a new choice approved by the FDA in 2004 to fix moderate to extreme nearsightedness. The Craftsmen lens, manufactured by Ophtec, resembles the type of lens implant made use of to recover vision following cataract eye surgical procedure.\nThe brand-new IOL, called the Artisan, is intended for just patients that have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not change the natural lens, yet is inserted before it. The main issue located with the implant was the steady loss of endothelial cells in the corneas of individuals who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are important in keeping the cornea clear. A three-year research showed a constant constant loss of endothelial cells of 1.8 percent a year. At this moment, no person can forecast whether this loss will certainly continue at the exact same rate forever, and even its influence on corneal feature.\nTo reduce lasting results of the gadget on the corneal endothelium, the FDA is calling for that the brand-new lenses be classified to define that they need to just be implanted in patients whose corneal endothelial cells are thick sufficient to withstand small cell loss.\nMore severe difficulties were few: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up survey of its dental implant clients to better analyze the post-surgical occurrence of cataract development, retinal detachment as well as various other ocular diseases.\nThe Artisan lens is meant to be an irreversible implant.Though it can be eliminated surgically, vision may not always return to what it was prior to getting the lens. Because it does not impact astigmatism, individuals with this trouble could still call for glasses.","domain":"optical_engineering"}
{"url":"https://insee.me/t/dream_macro","date":"2019-10-20T06:04:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986703625.46/warc/CC-MAIN-20191020053545-20191020081045-00382.warc.gz","language_score":0.9322638511657715,"token_count":544,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__66209533","lang":"en","text":"2 weeks ago\nGarden Orb Weaver\nRecently I got my Raynox DCR-250 and I've been excited to use it. It's a small 8 Diopter lens which is attached to the front of the lens. I bought that expensive piece of glass (yes that's all that is, a magnifying glass) to increase the magnification that I shoot at. It works perfectly. Thanks to the lens I can shoot at half the working distance with my current set up with a greater magnification.\nThe DCR-250 is a pretty delicate piece of gear to have, it's full glass with a plastic cover, no metal parts mean it will break easily if dropped or the glass faces will get scratched. It's considerably expensive as well, coming at a cost of INR 9700 and above (US$137, Ca$181, €125, £111), it's not a budget friendly alternative for many Photographers, especially children. Being made in Japan it's cost comes because of the R&D (Research and Development) put into it's making.\nDownsides: Not water/moisture proof, shockproof, dust proof or even shock resistant. So handle with care!\nHow's the Image quality?\nIt's made with 3 High Index coated Glass elements, meaning that Not only is it optically superb (by the built of the lenses) there are almost no distortions or chromatic aberrations (by the coatings). Is it different to shoot with this attachment?\nYes, significantly. Using the 50mm with Extensions I have a pretty good Magnification so the shake is pretty easy to get rid of. But as soon as the Raynox is added it seems like the subject is extremely close to me and controlling my shake becomes much harder. The good thing is that it comes with a universal adapter for 52-67 mm thread sizes so one adapter will fit a lot of lens sizes.\nWhat happens to the area in focus with the Raynox\nNaturally, as your magnification increases the area in focus decreases (given that the aperture remains same). When using the Raynox the f/8.0 aperture looks somewhat like f/5.6.\n#maestro_i #EarthCapture #animalplanet #discovery #invert_macro #beautiful_insects_japan #macro_highlight #arthropod_perfection #insectguru #ip_insects #macro_captures_ #dream_macro #macrogrammers #kings_macro #kings_insects #macro_freaks #EarthCapture #macro_perfection","domain":"optical_engineering"}
{"url":"http://www.ecostore.co.nz/roles/pigment","date":"2017-05-24T02:16:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607731.0/warc/CC-MAIN-20170524020456-20170524040456-00351.warc.gz","language_score":0.9098381996154785,"token_count":156,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__70032335","lang":"en","text":"*What are pigments used for?*\nPigments are used for adding colour to a material that might otherwise be colourless or have a dull colour.\n*How do they work?*\nLight is made up of different wavelengths. Each wavelength range translates to a different colour when perceived by the human eye. White light appears white because it combines all the different wavelengths together.\nPigments absorb all ranges of wavelengths except one, which is reflected. This is the wavelength range that is then transmitted to the eye. The eye perceives this wavelength range as a particular colour.\nDifferent pigments reflect different ranges of wavelengths. For example, a blue pigment appears blue because it reflects the range of wavelengths that make up blue light, but absorbs all other wavelengths.","domain":"optical_engineering"}
{"url":"https://simpsonoptics.com/dysphotopsia","date":"2019-10-16T22:56:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986670928.29/warc/CC-MAIN-20191016213112-20191017000612-00476.warc.gz","language_score":0.9394250512123108,"token_count":168,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__97155347","lang":"en","text":"\"Negative dysphotopsia\" is the term used to describe the \"dark shadows\" that a few intraocular lens (IOL) patients see in their far peripheral vision. The primary cause is highly likely to be the limited size of the IOL in comparison to the natural crystalline lens that it replaces. At very large visual angles the light is no longer imaged by the IOL, and a shadowlike phenomena may be visible. This is actually an imaging property related to IOLs, rather than the casting of a shadow.\nThis phenomenon is now being evaluated systematically in a series of scientific papers. The papers themselves contain references to earlier work. The work so far indicates that this visual phenomenon is an expected characteristic of the use of an intraocular lens. This has also led to additional questions about far peripheral vision.","domain":"optical_engineering"}
{"url":"https://theiashub.com/free-resources/news-crux-10/james-webb-space-telescope-syllabus-gs-paper-3-sci-and-tech","date":"2024-04-19T10:20:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00099.warc.gz","language_score":0.9230080246925354,"token_count":397,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__119100891","lang":"en","text":"Context: The James Webb Space Telescope (JWST) has captured the oldest-known dead galaxy, which stopped forming stars 13 billion years ago, according to a new study.\noThe research team was surprised to find a so-called dead galaxy that essentially lived fast and died young so soon after the big bang that created the universe.\nJames Webb Space Telescope (JWST)\n- About: The James Webb Space Telescope is the largest, most powerful space telescope ever built. It is named after James E. Webb, who was the administrator of NASA from 1961 to 1968 during the Mercury, Gemini, and Apollo programs.\n- Launched: by NASA (National Aeronautics and Space Administration) on 25th December 2021 through the launch vehicle Ariane 5 ECA.\n- Collaboration: It is a joint venture of NASA (US), ESA (Europe), and CSA (Canada).\n- Observing Early Galaxies: The telescope will be able to capture images of some of the first galaxies ever formed.\n- Solar System Exploration: It will also be able to observe objects in our solar system from Mars outward, look inside dust clouds to see where new stars and planets are forming and examine the atmospheres of planets orbiting other stars.\n- Sunshield Protection: The Webb telescope’s cameras are sensitive to heat from the Sun. Webb has a sunshield to protect its instruments and mirrors.\n- Infrared Vision: The James Webb Space Telescope sees the universe in light that is invisible to human eyes. This light is called infrared radiation. The James Webb Space Telescope will use its infrared cameras to see through dust in the universe.\n- Powerful telescope: It much more powerful than the presently deployed Hubble space telescope.\n- Function: It will observe in near-infrared light rather than light in the visible part of the spectrum (unlike Hubble) and thus it will have a much greater capacity to see obscure stars and galaxies","domain":"optical_engineering"}
{"url":"http://www.inquiriesjournal.com/articles/842/parametric-study-of-a-nd-yag-laser-beam-interaction-with-graphite","date":"2024-04-19T08:33:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00667.warc.gz","language_score":0.9432376623153687,"token_count":1345,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__52307697","lang":"en","text":"From Discussions VOL. 2 NO. 1\nParametric Study of a Nd: Yag Laser Beam Interaction with Graphite\nIN THIS ARTICLE\nGraphite is an important material in a number of specialized industrial applications due to its high thermal conductivity and resistance to thermal shock. Common applications include use as an electrode in electro discharge machining and as a mold material in metal casting. These applications often include fine details that are difficult to achieve with rotary tool machining techniques. Ablation with an Nd:YAG laser marking system permits greater detail in the machined pattern. The beam behavior and resultant mark are determined by four key operating parameters: lamp current, pulse frequency, marking speed and pattern repetition. Experiments were conducted to determine the effect of each parameter on the rate of material removal and resulting mark quality. Scanning Electron Microscopy (SEM) was employed to characterize the mark quality. Results were analyzed to determine the most efficient parameter without degrading the quality of the mark. Reducing the marking speed had the most profound effect on the material removal rate.\nLaser applications in material processing are becoming ever more common. Increased processing speed, low operating cost, and greater capabilities make laser ablation a viable alternative to traditional mechanical machining technology. This study analysed the impact of a number of operating parameters on graphite, an important material in several manufacturing methods.\nOne of the most notable applications of graphite is as an electrode for Electro Discharge Machining (EDM). EDM is a highly precise method of machining numerous materials. An electrode is placed close to the material surface with a dielectric liquid filling the void between the two. A current is passed through the electrode to create a controlled pattern of arcs that erode the material. The electrodes used can vary both in size and material. Often, a graphite electrode is machined so that it is a negative image of the desired pattern. Graphite is also used as a mold material for metal casting and rubber molding. High thermal conductivity and resistance to thermal stresses make it an ideal choice.\nIn both cases, the pattern is often limited by the size of the rotary tools available. This issue is especially troublesome when attempting to cut inside corners. The non contact nature of laser ablation eliminates these concerns.\nThe tests conducted fell into two categories. First, the depth of focus for the beam was determined to ensure that further testing would take place with adequate fluency. For a given set of optics there is a focal length that will maximize the beam fluency. Unfortunately, as material is removed the focal length changes. Optimally the worktable can be raised to compensate for the removed material, but this is not always possible. Alternately, a depth of focus where the laser energy is sufficient to ablate material can be determined. As long as the depth does not exceed the depth of focus, marking is possible.\nThe second class of tests was designed to determine the impact of the key operating parameters lamp current, marking speed, pulse frequency, and pass count on the efficiency of material removal. The selection of a parameter set involves a number of tradeoffs between time, cost, and quality. By developing relationships between parameter choice and result, it will be easier to choose the best configuration to complete a job.\nTesting was conducted using a pulsed 100W Nd:YAG laser marking system. This system consisted of the laser, interchangeable focusing lenses, and a set of computer controlled mirrors used to direct beam across workpiece. The system is mounted in a machine base with three axis workbench. This bench is equipped with a two dimensional digital readout system displaying table position. This system allows the user to measure small, precise adjustments made in the sample location before, during, or after marking.\nA proprietary software suite called FobaGraf was used to define beam path. Using a simple programming language, the software gives the operator complete control over a number of important laser parameters including lamp current, marking speed, pulse frequency, as well as the number of passes that should be taken over the pattern. The software allows simple paths to be programmed. For more elaborate patterns, a tool is included to import CAD or other vector artwork files. Patterns used in these tests were all created in AutoCAD and imported.\nDepth of Focus\nTo determine the depth of focus an apparatus was designed to allow the focal length to be systematically adjusted. The apparatus consisted of an angled bar attached to the work table. A strip of painted steel was clamped to this bar. The laser scribed a short line on the metal strip and the entire table was then translated so that the next mark would be at a different focal length. Figure 1 shows this arrangement. The apparatus was designed so that each 1mm of table movement was equivalent to a 100μm change in focal length. After marking, the strip was sectioned and examined using scanning electron microscopy. Images of the lines were obtained. Using Photoshop, the width of each line was determined. When measuring this width, both ablated metal and any disruption of the paint were included because at greater focal lengths the only mark appears on the paint.\nA series of patterns were developed to test the effect of laser parameters on the efficiency of material removal. The patterns consisted of roughly 30 2mm squares. Each square was assigned a different parameter set based on the variable in interest. These values were chosen to provide a representative picture of the laser's capabilities. The focal length was chosen so that the entire depth of the square fell within the depth of focus for the system. To minimize any adverse effects associated with temperature rise in the sample material, the laser was paused briefly between squares and the squares were marked in a non-sequential pattern so that adjacent squares were never marked consecutively.\nAfter the sample was ablated, the depth of each square was determined with the aid of a Mitutoyo digital indicator. This experimental routine was repeated on several metals to provide comparison to engineering materials traditionally processed with lasers.\nWhen the desired pattern requires the ablation of a 2D area, the area must be hatched with a series of lines to fill the area. The marking software provides a range of options to generate this hatching pattern. The most important parameters are the spacing of the hatch lines and the orientation of one or more planes. The ideal spacing between lines is the laser spot diameter. This spacing was used in conjunction with the four hatch patterns shown in Figure 2 to generate a range of surface finishes.","domain":"optical_engineering"}
{"url":"https://partnora.com/en/company/5697cdec7111f232001e5854/Tensor-Machinery-Ltd","date":"2022-08-11T18:07:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571483.70/warc/CC-MAIN-20220811164257-20220811194257-00112.warc.gz","language_score":0.9482465982437134,"token_count":262,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__93736550","lang":"en","text":"To access more features, such as the promotion and procurement of goods, please confirm your company's details.\nTensor Machinery Ltd.\nEstablished in 1984 by engineers with over 60 years of combined experience in the communication cable industry, numerous years combined experience in fiber optic cable technology and equipment.Tensor dedicated itself strictly to fiber optic cable production equipment and has stayed within the industry ever since its inception.Over the years Tensor has become an international supplier of its products, in the USA, South Africa, Europe, South America and Asia.Tensor is well known for its excellence in engineering and its high quality customized equipment and excellent prompt after sales service. The company is managed by engineers dedicated to the fiber optic industry. Our 25,000 square foot facility in Montreal Canada is located just minutes from the Dorval/Montreal airport.Our Sales, Service, and R & D Center is located in Hickory, North Carolina, servicing our US customers\nManufacturer / Producer - Metallurgy & Metalworking\n- Year incorporated\n- H8T 2X9, Canada, Lachine, Montreal, Quebec, 1570 - 52nd Avenue","domain":"optical_engineering"}
{"url":"https://www.mccelec.com/blog/2022/february/led-lights-and-color/","date":"2023-12-11T16:29:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679515260.97/warc/CC-MAIN-20231211143258-20231211173258-00248.warc.gz","language_score":0.9349108934402466,"token_count":776,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__243012094","lang":"en","text":"Learn how color is produced by LED lights and how colors look when viewed under LED lights.\nIn our last blog, we looked at how LED lights are much more efficient than both incandescent and fluorescent bulbs. This translates into savings for you in terms of your electric bill and in how often LED light bulbs need replacement. This time, we’ll look at how LED lights produce color and how they bring out the colors of objects around them.\nFirst, let’s look at color temperature. Color temperature is a standardized format used for all bulbs that describes the color of light a bulb generates. Color temperature is measured using the Kelvin, which is the unit of absolute temperature. Kelvin is noted by a capital “K” and is often called “degrees Kelvin.” You might have heard of this color rating in relation to fluorescent light bulbs. The color temperatures for light bulbs generally range from:\n- 2,700 K = Soft White\n- 3,000 K = Warm White\n- 4,100 K = Cool White\n- 5,000 K = Daylight\nIncandescent bulbs burn around 2,700 K, meaning they give off a slight orange tint. A halogen bulb burns at 3000 K, making it a bit brighter and whiter. A 5000 K degree bulb burns a bit bluer. LED lights have color temperatures across the entire range, from 2,700 K to 7,000 K. This means there’s probably an LED light available for any color temperature you’d like your bulbs to be.\nA bulb’s usefulness depends in part on its color rating. For example, a 2,700 K bulb works well for highlighting darker colors such as browns, tans, and dark reds. A 3,000 K is great for lighting up brighter colors such as pastels.\nWhen choosing a bulb, you should consider not only how the light it produces will look, but how that light will show the objects around it. Believe it or not, there is a scientific measurement for this, called the Color Rendering Index, or CRI. This indicates how true of a color you see under a particular bulb. The closer to 100 the rating is, the more accurately your eyes are seeing color under this light.\nOnce again, let’s use fluorescent bulbs as an example. Most fluorescent light bulbs have a CRI of 60-70. This means your eyes are only 60-70% accurate when trying to determine an item’s true color under a fluorescent bulb. This is why florescent bulbs have a reputation for discoloring what we see. Because of this, many people prefer not to use fluorescent lighting when putting on makeup. Clothes can often appear a different color at home than they did at the store because of the fluorescent lighting’s low CRI.\nHalogen bulbs have a CRI of 90, which is why they are used in artwork lighting, kitchens, and showrooms.\nDepending on the bulb, LED lights can have a CRI ranging from 80-95. This range reflects the differences in the bulb’s construction, and is one of the main reasons LED light bulb prices vary greatly. Generally speaking, only higher-end LED bulbs will have the CRI printed on their packaging.\nOn average, about 25% of your electric bill is used for lighting. This makes choosing the right bulbs an important consideration. LED lights not only have good color temperature and CRI ratings, but remember they are also much more efficient. For instance, recall that incandescent bulbs only turn 10% of the electricity they consume into light, while the other 90% becomes heat. This isn’t the case with LED lights, which lowers your power expenses and saves money in the long run.","domain":"optical_engineering"}
{"url":"http://serjean.blogspot.com/2008/09/ilasik-technology-save-our-vision.html","date":"2018-06-22T05:03:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864354.27/warc/CC-MAIN-20180622045658-20180622065658-00521.warc.gz","language_score":0.9451985359191895,"token_count":149,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__16073238","lang":"en","text":"Eyes are the window of our body. It gives color and light of our life. Without it, you can’t enjoy life.\nBased on my observation, eye problem is very rampant here in U.S. There are little kids to old people are wearing contact lenses and reading eyeglasses. Some causes from hormonal defects and lack of vitamins.\nHowever, our technology innovation offers the cure for your eye problems. This LASIK information will gives you relevant information for you to be treated.\nBasically, the LASIK technology is a very popular way of curing eye problems in U.S. Besides it is very affordable, iLASIK technology is safe and proven.\nSave your vision and see well!","domain":"optical_engineering"}
{"url":"https://www.comiaroma.com/news/what-is-high-flint-glass-bottle/","date":"2021-01-16T00:31:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703497681.4/warc/CC-MAIN-20210115224908-20210116014908-00230.warc.gz","language_score":0.9553471207618713,"token_count":397,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__256591678","lang":"en","text":"Glass is an ancient building material that has been around since ancient Egypt.Along with the common development of human society, the glass industry has created a variety of glass with unique functions, making the glass family continue to thrive, such as bulletproof glass, photoelectric glass, vacuum glass, etc., all of which are playing an irreplaceable role in their respective fields.We will introduce the characteristics of high white glass and explain the difference between high white glass and crystal white glass.\nWhat is high flint glass?\nHigh flint glass is commonly known as “super white glass” or “super transparent glass”, which is referred to as “low iron glass” in experience, but not lead glass. Lead glass is mainly used in the field of radiation protection, for example, lead glass is used in XRD through Windows.\nIn the process of glass making, if the iron content is too high, there will be more chromogenic components inside, so that the light is easily absorbed when passing through the glass, leading to the decrease of light transmittance, which is what we call low transparency.\nIt can be seen that in ordinary glass without obvious defects (nodules, bubbles, stripes, impurities, optical distortion, etc.), the influence ratio of iron content on light transmittance is very large.\nTherefore, ultra-white glass is designed to reduce the content of iron in the glass as much as possible (usually within the range of 0.011), increase the transmittance to more than 92% without obvious defects, and give people a feeling of crystal clarity from the surface.\nCOMI AROMA—all of our reed diffuser &cosmetic glass bottle&perfume glass bottles are made of high white glass material with higher transparency and no toxic substances such as lead, which is more suitable for the use of home frangrance.\nPost time: Dec-31-2020","domain":"optical_engineering"}
{"url":"https://www.treadmagazine.com/vehicle-parts/accessories/land-or-sea/","date":"2022-01-25T05:38:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304760.30/warc/CC-MAIN-20220125035839-20220125065839-00012.warc.gz","language_score":0.9236056208610535,"token_count":1036,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__228484922","lang":"en","text":"LIGHT UP YOUR LIFE.\nYou’ve been out on the tail all day and you’ve worked yourself further away from basecamp than you thought. With the sun sliding down towards the horizon faster than anticipated, you realize that you might not make it back before dark.\nDriving over rough terrain in the darkness isn’t only challenging, it can be downright dangerous. Is that a dip in the road or a 100-foot drop? Fortunately, you’ve outfitted your rig with the latest in vehicle-mounted lighting to figure that out and get you back to home base safely.\nKC HID lights combines a high-voltage ballast to energize two electrodes sitting inside a sealed hub.\nWhen you decide it’s time to shop for off-road lighting, consider what your intended use will be. Is it mostly for slower nighttime exploring on some of your favorite trails or high-speed bombing down sandy washes? Your application will determine the light pattern and type of light you need for your pursuits after dark.\nModern off-road lighting comes in three flavors: halogen, high-intensity discharge (HID), and light-emitting diode (LED). Each has its purpose and these lights vary by shape, dimension, cost and performance.\nHalogen lights use a tungsten filament encased in a round, sealed bulb with a polished reflector. Inside a filament resides an inert gas used to keep the bulb from darkening over time, as would happen with a standard sealed bulb. The front lens of the bulb can be formed to provide a specific beam pattern as needed. Halogen lights are typically the least expensive type, and their bulb life ranges from about 50 to 300 hours, depending on power rating.\nRigid Industries RDS-Series light bars were designed to conform to curved windshields.\nHigh-intensity discharge (HID) lights use two closely-spaced electrodes inside a sealed bulb, which contains a noble gas. A ballast module is used to step up the vehicle voltage to create an intense light discharge within the gas mixture between the electrodes. HID lamps are more power-efficient than halogen lights, and run somewhat cooler. With no filament to wear as with a halogen light, HID lights can last for about 3,000 to 5,000 hours of use.\nAs far as technology goes, halogen and HID advancements are all but dead. Light-emitting diode (LED) lights have become all the rage in recent history and are now seen most everywhere. In these, electrical current is passed through a semiconductor junction that causes light to emit. This technique of producing light is by far the most efficient of the three types; plus, LED lighting can be produced to emit a variety of colors and hues of white light.\nUnlike halogen and HID lights that use a single point of source per light, off-road LED lights typically use multiple (sometimes many dozens of) individual LED sources to compose a single LED light assembly. One advantage to using an LED bar (and quality counts) over halogen or HID lighting is the smoothness of light distribution over the beam pattern. With multiple sources working to produce the beam, you get a far more consistent blanket of illumination from an LED bar.\nKC Gravity Pro6 lights directs 100 percent of the light into the reflector resulting in no light loss.\nLED technology continues to advance from not only aftermarket light suppliers but from the vehicle manufacturers, as they continue to develop LED headlight solutions and push them into mainstream offerings, and not just high-end vehicles. LED substrates continue to improve in efficiency, and thus, power capability. Today’s LEDs can produce more output using less space, as well. It wasn’t long ago that LED lighting simply couldn’t compete with HID units for racing applications. As of late, LEDs have proven they have a place in high-power lighting, and they’re here to stay.\nKC Hilites Flex LED line is a modular lighting system that allows you to create an array of LEDs of any size you want. Lights can be linked or stacked to gain the array you need, including the use of spot- and spread-beam light patterns.\nWith LED lighting, there are generally two types of optical technology that light manufacturers use to create the projected beam of light: lens optics and reflector optics. These are the means by which the various manufacturers obtain their beam patterns and lighting output. Lens optics use a medium to manipulate the beam. These offer a smooth/uniform beam but are typically limited by existing, ready-made optics that may not provide good automotive beam patterns. Reflector optics use reflectors to refract the beam, offering an intense beam and custom patterns, depending on reflector design. However, efficiency may be limited by how much light is redirected by the reflector.\nTo view the complete LED Light Buyer’s Guide please pick up the current issue of TREAD which is on newsstands now.","domain":"optical_engineering"}
{"url":"https://compsmagad.pages.dev/posts/amazon-fire-hd-10-plus-review-for-work-and-play/","date":"2024-04-21T14:31:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817780.88/warc/CC-MAIN-20240421132819-20240421162819-00090.warc.gz","language_score":0.9067730903625488,"token_count":284,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__125299214","lang":"en","text":"Compared to the iPad’s squarer screen, the tablet’s 10.1-inch LCD touchscreen is a little bit brighter than its predecessor and made for watching movies. The new Fire HD 10 is 36g lighter than the one it replaces and employs the slimmed-down and rounded design language first used on the 8in Fire HD 8 last year, giving it a noticeably more contemporary appearance.\nHardware and performance\nThe 2 MP main camera of the predecessor would be replaced by a 5 MP lens with f/2.4 aperture. The lack of autofocus makes the image sharpness comparable to the 2-MP front-facing optics, and the photographs are likewise blurry. The dynamism in the images are also not very strong, and details and structures are frequently lost in blur. In extremely dim light, our test person is hardly recognizable. Surprisingly well, the Fire HD 10 Plus captures color. We put the rear-facing main camera through additional testing with the ColorChecker port under regulated lighting circumstances, and we examine the 5 MP lens’s color reproduction in contrast to the real reference colors. The colors are faithfully portrayed. The ColorChecker only detects bigger differences in black and grey tones. The front-facing camera only captures moving images in 720p while the image sensor utilized on the back records videos in a respectable quality with a maximum Full HD resolution.","domain":"optical_engineering"}
{"url":"https://www.electroguy.com/hd-cvi-security-cameras/","date":"2021-09-21T04:42:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057158.19/warc/CC-MAIN-20210921041059-20210921071059-00668.warc.gz","language_score":0.9220341444015503,"token_count":737,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__62115779","lang":"en","text":"HD-CVI security cameras are a newer HD camera technology. They come in many different types and styles of dome cameras, bullet cameras, pinhole and spy cameras.\nWe also have pan tilt zoom HD-CVI cameras. The nice thing about HD-CVI is that it can use both coax cable and cat5 network cable to transmit the signal. This is the same type of cabling used in many older analog camera systems. So, this makes it an easy transition for upgrading older analog security camera systems. This is also a big savings if you don’t have to replace all of the cabling.\nThe other benefit of using HD-CVI is that you can run the cabling at much greater distances than you can for other HD security camera systems. IP cameras and HD-SDI cameras are limited to about 300ft whereas HD-CVI security cameras can be run up to 1500ft using RG59 coax or cat 5 or 6 cabling.\nIf you are looking for a great image quality at a great price then HD-CVI security cameras are the way to go. Where analog has difficulty producing a recognizable face or reading a license plate from a distance HD-CVI security cameras produce a much higher resolution image which makes identification much easier.\nHD-CVI Security Cameras\nHD-CVI Camera Resolutions\nThere are many different types of CCD and CMOS sensors on the market for security cameras. Some of the manufacturers are Sony, Panasonic and Sharp. HD-CVI broadcasts in HD resolution. Resolutions from 1080p all the way up to 4K are available.\nHD-CVI Infrared Security Cameras\nThe lens is in the center at the front of the security camera and it usually has infrared LED’s around the lens. With bullet cameras the face is flat on the front. The more IR’s the security camera has the better the night vision. There are different strengths of infrared LED’s and the larger and more intense the LED the farther and larger of an area that will be lit up. Basic CCTV bullet cameras will light up to 20m. Some higher end infrared security cameras can light up farther than 90m. Bullet cameras generally have better infrared night vision than dome cameras. This is because more IR’s can be placed around the lens on a bullet camera than can be placed around the lens on a dome camera.\nHD-CVI Day/Night Security Cameras\nMost HD-CVI security cameras are day/night cameras so they are color by day and black and white at night. Under low light conditions the infrared LED’s illuminate and the camera will switch to black and white night mode.\nHD-CVI Security Camera Lens types\nThe lens on a security camera can come in different focal lengths. Wide angle lenses are the most popular and they come generally in 3.6mm or 4mm. If you want a more closer or zoomed in view the lens can come in 6mm, 8mm 12mm or even longer zoom lengths. You can also get what is called a varifocal lens camera. This is when the lens can be manually adjusted at the camera. A popular varifocal lens is 2.8mm to 12mm. At the time of installation you adjust and focus the camera for the view that you like. There are also motorized zoom cameras that can be controlled from the DVR. The most popular are pan tilt zoom cameras. This way you can not only zoom and focus the lens but you can move the camera position.\nSecurity Camera Resolution Chart – Click to enlarge","domain":"optical_engineering"}
{"url":"http://www.whathifi.com/news/bristol-show-2013-optoma-launches-%C2%A3800-hd25-3d-projector","date":"2013-12-08T16:16:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163066263/warc/CC-MAIN-20131204131746-00032-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8543418645858765,"token_count":124,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__218519641","lang":"en","text":"BRISTOL SHOW 2013: Optoma launches £800 HD25 3D projector\nThe 1080p projector has 2000 ANSI lumens brightness and 20,000:1 contrast ratio with new Dynamic Black and BrilliantColor technologies.\nInputs extend to two HDMI, two VGA, component and composite video, plus audio inputs for the projector's built-in speakers.\nThe £800 price includes one pair of 3D glasses, but at the show you can buy that package for £750, or the projector and two pairs of glasses for £800.\nOptoma will be demonstrating the projector in room 314.","domain":"optical_engineering"}
{"url":"http://dustystof.com/2pcs-set-Auto-Car-Side-Rear-View-Mirror-Led-Lamp-Turn-Signal-Light-Accessories-g8iptsqxsoovptq","date":"2021-03-03T20:26:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178367790.67/warc/CC-MAIN-20210303200206-20210303230206-00356.warc.gz","language_score":0.825604259967804,"token_count":303,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__6438197","lang":"en","text":"Description --> This Product features one pair Brilliant Blue brand new 14-SMD-1210 LED arrow lights.\nCan be hidden behind the side mirror for any cars, SUVs or trucks as turn signal lights.\nWe have redesigned this LED arrow with the LED lights embedded/hidden inside the circuit board so it is thinner than a Quarter.\nThinner means less gap, so it will make the installation process easier for you.\nSimply remove the side mirror, and place the LED arrows against the back of the mirror and tap the wires to the turn signal lights.\nFeatures: 1 Set(2 Pcs One Pair).\nColor: yellow, blue, red, white light, green Note: If you like other colors you can contact us.\n14 pieces 1210 type SMD LED lights.\nUltra slim design, only 0.\n058\" thin (about 1/3 the size vs other LED arrows on the market).\nWith the arrow pointing right \">\" height: 2\" width: 2\".\nPut LED lights behind the rear mirror, virtually invisible! Highly recommend professional installation since it requires opening up the entire side mirror(not including installation instructions).\nInstallation: Remove the base of the side mirror.\nPlace the LED arrow inside the back of the mirror.\nConnect and tape the wires to the turn signal light.\n*The arrow will light up when the turn signal is in operation, or else it will remain invisible.\nProduct package: 2*turn signal","domain":"optical_engineering"}
{"url":"http://andreaswmatthes.com/photography/infrared-photography/","date":"2021-05-17T09:48:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243992159.64/warc/CC-MAIN-20210517084550-20210517114550-00358.warc.gz","language_score":0.9378669261932373,"token_count":362,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__37050338","lang":"en","text":"In Infrared Photography (IR Photography) a large part of the visible light is blocked out and the invisible infrared light spectrum is recorded.\nIn the old analog film period a special infrared film was used that was extremely light sensitive and had to be handeled very carefull.\nIn the new digital photography era no light sensitive film is to be used. The way to get to IR images is to block out the visible light spectrum by very dark red filters. This can be done by either screw-on type IR filters in front of the lens or internal replacement IR filters that go directly before the sensor internally within the camera.\nThe IR filters come in a variety of strength, meaning the amount of visible light they block and the amount of infrared light they let through creating differnet effects with each IR strenght filter.\nAs I got inspired to IR photography on a local photography show in August 2012 I bought an older Nikon D1x DSLR camera with front of the lens IR filters. Additionally I bought a Nikon D70 DSLR camera (using a 10.5mm lens with it) and an older point and shoot Cancon 3010 Powershot, both permanently converted to IR with an internal IR filter placed in front of the digital image sensor.\nAs I am just getting started you will see a learning and playing curve. I totally enjoyed IR Photography right from the start. The images can be very dramatic in a way you can not get them in black and white. A great and dramatic combination is HDR IR photography as the image on top of this page.\nFor post capture development I use Adobe Lightroom 5, Adobe Elements 9, for HDR conversions I use Photomatix 4.2.4 and for black & white conversions the Nik Silver Effex Pro 2 software.","domain":"optical_engineering"}
{"url":"https://ctl.net/blogs/news/optical-touch-the-ideal-technology-for-all-in-one-pcs","date":"2021-04-18T11:38:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038476606.60/warc/CC-MAIN-20210418103545-20210418133545-00610.warc.gz","language_score":0.9139007925987244,"token_count":384,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__252141945","lang":"en","text":"There are more than a dozen different touch technologies in the tech market, each bringing unique strengths across various industries and applications. Few touch technologies, however, offer the benefits of optical touch: accuracy, clarity, flexibility, reliability, durability, and support for multi-touch gestures. Optical is particularly optimized for the desktop and All-in-One PC market.\nHow Does Optical Work?\nWorking in concert, two optical sensors located at the top left and right corners of the screen track the movement of any object close to the surface by detecting the interruption of an infra-red light source. At the heart of the system is a printed circuit controller board that receives signals from the optical sensors. The optical software then compensates for distortions and triangulates the position of the touching object with a high degree of accuracy.\n- Clarity of image (no films or coatings on the screen) improves visual experience.\n- Fast drag function allows for quick, accurate finger swipes and brush strokes.\n- Zero-pressure response makes screens durable and accessible for users of all ages and levels.\n- Multi-touch capability enables the screen to support built-in gestures within Windows 7.\n- Excellent performance, accuracy, and reliability even in rugged and outdoor environments empower the potential of touch applications.\nWe offer two great optical touch All-in-One PCs. The All-in-One EA650T, which is built around Intel’s new Thin Mini-iTX standard that allows us to offer our customers the flexibility and customization that we have become synonymous with, and the All-in-One GA650T which in addition to the great features of the EA650T is also Energy Star rated and Epeat certified, making in a truly environmentally friendly machine. You can find out more about CTL’s All-in-One PCs at our website www.ctl.net.","domain":"optical_engineering"}
{"url":"https://www.cyclerepublic.com/garmin-varia-smart-bike-tail-light.html","date":"2020-01-28T13:28:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251778272.69/warc/CC-MAIN-20200128122813-20200128152813-00552.warc.gz","language_score":0.8604047894477844,"token_count":185,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__107417433","lang":"en","text":"Garmin Varia Smart Rear Bike Light\nIn stock: Bike Dispatched in 5-7 working days\nGarmin Varia Smart Rear Bike Light is the future of bike lighting.\nThis clever piece of kit adjusts based on ambient light conditions as well as bike speed when paired with a compatible Edge computer.\nThe Garmin Varia Smart Bike Tail Light has solid and flashing modes, the light's intensity increases as the bike decelerates, warning traffic approaching from the rear.\nThe bettery life is up to 4 hours on the highest power setting\nThe brightness and intensity can be controlled with a compatible Garmin Edge product that has light sensing capabilities.\nAdd a second Varia tail light (sold separately) to the smart light setup for turn signals, which can be controlled through a Garmin Edge 1000, Edge 520 or the Varia remote control.\n|Eligible for cycle to work||Not eligible|","domain":"optical_engineering"}
{"url":"https://teq4.com/the-world-is-not-an-eye-chart/","date":"2024-04-24T00:55:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818835.29/warc/CC-MAIN-20240423223805-20240424013805-00227.warc.gz","language_score":0.9429381489753723,"token_count":1254,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__170369397","lang":"en","text":"Share this post:\n20/20 vision. Perfect vision. The best that the human eye can resolve.\nTherefore there’s no benefit in creating a display system that has a higher resolution than that of the 20/20 line of an eye chart. Right?\n20/20 vision means that at 20’ (6m) a viewer can identify characters constructed of lines 1.75mm wide and 1.75mm apart. It’s the ability to clearly see this gap and discern the letters of the eye chart that tests a person’s visual acuity. The line thickness of the characters on an eye chart are 1 arc minute (one 60th of a degree) wide when viewed from 20’ away.\nTherefore on that premise, a high resolution display in an Immersive theater needs pixels no larger than 1 arc minute wide. That equates to around 10,800 pixels for a dome (180 degrees x 60 pixels per degree), when viewed from the centre of the theater (also assuming the viewer is at the spring-line of the dome), and 4,320 pixels across in a giant flat screen theatre (DIGSS1.1)1 when viewed from the central seat row.\nWell, actually that’s wrong. We can ‘see’ objects far smaller than lines that are 1 arc minute wide.\nLook around you now. How much of what you see is made up of regular shaped black and white lines equally spaced?\nNot much. The World is not an eye chart.\nWe can see details far smaller than 1 arc minute across. The leaves on a tree, the fur of an animal. The carpet. A hair on the page of a book.\nAlso consider that we do not need to accurately resolve an object and recognise it to see that it is there, that it exists. In fact we typically enjoy the intrigue of getting closer to an object to discover what it is. Fully and clearly resolving an object is quite different to seeing that it’s there. If 1 arc minute was all that we could see then we would never see the hair on our arms.\nPart of the complication is that the resolution of the human eye is not an absolute. How much we can see depends upon the viewing conditions. The amount of light and the contrast of the image play an important part.\nLeaving these variables to one side, it is generally agreed that under optimum viewing conditions the human eye can resolve detail as small as 0.59 arc minutes per line pair2 (pair of pixels) which equates to a pixel size of 0.3 arc minutes. This therefore is the generally accepted figure for ‘eye limiting resolution’, more than three times the resolution of 20/20 vision.\nResolution is an important metric for the flight simulation industry for pilot training applications. A level-D simulator (suitable for commercial aircraft) stipulates a display resolution of only 1.5 arc minute sized pixels (3 arc minutes per line pair). Significantly this is because pilots need to be able to resolve the runway lines which are 4 feet apart at 6,876 feet away as they come into land. Fast jet simulators on the other hand are targeting a much more demanding specification of 0.5 arc minutes per pixel. These fast jet simulators are designed as close as possible to eye limiting resolution so that the pilots can identify fast moving objects in the sky.\nIf we are ever to experience eye limiting resolution in immersive theaters we would need to capture and display 0.3 arc minutes of resolution. This equates to 36,000 pixels across the centreline of a dome and 14,400 pixels across a 70’ giant flat screen when viewed from the central row of seats.\nFurthermore, consider that in a dome every audience member bar one is closer to some part of the screen than the person in the center, and that the front half of a giant flat screen audience are significantly closer to the screen than the center row. These audience members would need even more pixels on the screen to enjoy eye limiting resolution (in fact up to 22,600 pixels wide from the front row of a 70’ wide flat screen).\nAs of 2014 the current state of the art for domes offers around 6,600 pixel resolution (optimistically referred to as ‘8k’) and for flat screens 4,096 pixels. These specifications are driven by the ‘4k’ projection systems now in the market (domes use an array of five or six 4k projectors to cover the dome surface). Once ‘8k’ projectors come on-line at comparable prices and at the brightness levels required (probably 3 to 5 years away) the capability of flat screens will quickly jump to 8,000 pixels and domes to around 12,000 pixels (assuming that the capture resolution and production workflow can keep up).\nThis may appear unrealistic and out of reach for now, but for those of us who can remember marvelling at 1280 x 1024 resolution at the turn of the century will know that we soon recalibrate to expect higher resolution once we’ve experienced it.\nThus far this only considers spatial resolution (how many pixels). Of increasing importance is temporal resolution (how often), otherwise known as frame rate. Frame rates or fps (frames per second) have been quite stable for many years. 24fps and 30fps have been with us for many years. HFR (high frame rate) 48fps and 60fps are with us now and could quickly be overtaken by frame rates as high as 120fps or even more. High frame rates smooth out the strobing or judder that one can experience, particularly on large field of view screens. With 3D systems HFR can significantly help with edge definition, the means by which we determine the depth of an image using current 3D technologies. HFR can help us see the resolution that is there in the image that is otherwise blurred-out during panning and fast action shots.\nThe combination of higher frame rates and resolutions approaching eye limiting resolution will help deliver increasingly realistic immersive experiences.\nShare this Post","domain":"optical_engineering"}
{"url":"https://crateandcage.com/birdwatching-binoculars-review/","date":"2024-04-23T10:10:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818474.95/warc/CC-MAIN-20240423095619-20240423125619-00427.warc.gz","language_score":0.8986324071884155,"token_count":2661,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__179775495","lang":"en","text":"Having the right pair of binoculars makes all the difference when viewing birds. In this birdwatching binoculars review, we’ll compare and evaluate seven top-rated birdwatching binoculars.\n- Meopta MeoPro HD 10X42\n- Vortex Viper HD 10×50\n- Leupold BX-4 10×50\n- Leupold BX-5 Santiam HD 10x42mm\n- GPO Passion ED 10x42mm\n- Zeiss Conquest HD 10×42\n- Swarovski EL 10×42\nBy examining their features, pros, and cons, we’ll help you make an informed decision that enhances your birdwatching adventures.\nMy goal is more than providing another ho hum top 10 binoculars for bird watching list. I will take you through the exact research process I followed when I purchased my most recent pair of binoculars for birding. I found the perfect pair of binoculars for me and my budget in 2023.\nBirdwatching Binoculars Review\nI have chosen 40 mm and 50 mm lens sizes for the binoculars I will review below because they are common size preferred by many birdwatchers. My selections for the birdwatching binoculars review includes some of the best 10×42 binoculars for bird watching for casual birders and those with a moderate budget. If most of your viewing is designated to bright sunshine and in the open, unshaded areas something smaller might work like a 30mm size. A smaller size means less ability to render birds in shade, overcast conditions, or as darkness approaches. The bigger lenses let in more light and increase the ability to render birds in less than sunny conditions.\nWhat is the best magnification for bird watching binoculars?\nI have chosen one of the most popular magnification sizes in the world of birdwatching binoculars used for birdwatching. The “10” represents a 10x magnification. Likewise, an 8x or 7x or 12x represents the magnification rating for a particular binocular pair.\nIf your typical bird viewing distance is within 25 – 30 meters from a walking path or sidewalk, the 7x or 8x binoculars are likely fine for that application. But if viewing distances increase beyond that, then a 10x binocular is a more common choice.\nMost of my birdwatching has been with a digital camera and a 300 mm budget zoom lense for the past several years. My lens is no longer serviceable, so I decided to go the traditional route and buy some binoculars.\nI spent several months searching, researching and wafflling back and forth on the best options for binoculars. I concluded that one pair isn’t enough for all situations, after wasting many, many hours online it became clear to me that there are not a “best” binocular for light / dark conditions, near / far distances, or for short / long hiking distances. So, I did what many people do and picked a good quality binocular option that offers a lot of value for the money.\nBirdwatching is a great alternative to pet ownership.\nWhich binoculars are best for birdwatching?\nLet’s move on to the list of best budget binoculars for bird watching. I have also included some higher end choices from Zeiss and Swarovski for consideration.\nMeopta MeoPro HD 10X42 – $449, 31 oz:\nPro: The Meopta MeoPro HD 10X42 binoculars offer exceptional value for money with their high-definition optics, ensuring clear and bright images of birds. The 10x magnification and 42mm objective lens provide a wide field of view, perfect for observing birds in their natural habitats. Despite weighing 31 oz, these binoculars are ergonomically designed for comfortable handling during extended birdwatching sessions.\nCon: Although the Meopta MeoPro HD 10X42 binoculars deliver superior performance, their weight may be a concern for some birdwatchers seeking a more lightweight birding binoculars option.\nVortex Viper HD 10×50 – $599, 28 oz:\nPro: The Vortex Viper HD 10×50 binoculars not only offer exceptional optical performance but also come with the best warranty in the industry. With a lifetime, unconditional warranty, Vortex ensures your investment is protected. These binoculars excel in light transmission, providing sharp and vibrant images. The 10x magnification combined with the 50mm objective lens allows for impressive long-range birdwatching. Many birdwatchers consider the Vortex brand the best manufacturer of birdwatching binoculars.\nCon: The slightly heavier weight of the Vortex Viper HD 10×50 binoculars may be a consideration for birdwatchers prioritizing a lightweight option.\nLeupold BX-4 10×50 – $699, 28 oz:\nPro: The Leupold BX-4 10×50 binoculars are renowned for their optical clarity and brightness, especially in low-light conditions. These binoculars are ideal for early morning or dusk birdwatching sessions. With a rugged and durable construction, they can withstand challenging outdoor environments. The 10x magnification and 50mm objective lens provide detailed observations even from a distance. The 50mm lens adds a few ounces of weight and an inch or more in length.\nCon: The higher price point of the Leupold BX-4 10×50 binoculars may deter some birdwatchers who are looking for a more affordable option.\nLeupold BX-5 Santiam HD 10x42mm – $645, 23 oz:\nPro: The Leupold BX-5 Santiam HD 10x42mm binoculars stand out for their lightweight design, weighing only 23 oz. They are perfect for birdwatchers seeking a more portable option without compromising on performance. These binoculars provide excellent image clarity and color fidelity. The 10x magnification and 42mm objective lens strike a balance between reach and a wider field of view, making them versatile for various birdwatching scenarios. The difference between BX-4 and BX-5 may seem insignificant, but the Santiam model has a reputation for rendering images quite well as darkness approaches and early in the morning before full sunrise.\nCon: The slightly smaller objective lens size of the Leupold BX-5 Santiam HD 10x42mm binoculars may slightly impact light transmission in dimly lit environments.\nGPO Passion ED 10x42mm – $630, 25 oz:\nPro: The GPO Passion ED 10x42mm binoculars offer outstanding build quality and superior optical performance. Equipped with extra-low dispersion (ED) glass, these binoculars reduce chromatic aberration and enhance color accuracy. The 10x magnification and 42mm objective lens provide sharp and detailed views of birds. The robust construction ensures durability in various outdoor conditions. In this price range, GPO has a great reputation for quality. The GPO Passion ED’s may be the perfect choice if you are birding on a budget.\nCon: The relatively larger physical size of the GPO Passion ED 10x42mm binoculars may be a consideration for birdwatchers who prefer a smaller, portable option that is easier to pack and carry.\nNikon Monarch 7 10×42 – $479, 23.6 oz:\nPro: The Nikon Monarch 7 10×42 binoculars offer an excellent balance of performance and affordability. With a 10x magnification and a 42mm objective lens, these binoculars deliver clear and detailed views of birds. The lightweight design, weighing just 23.6 oz, makes them comfortable to use for extended periods. The binoculars are also equipped with extra-low dispersion (ED) glass and multi-layer coatings that enhance image quality and color accuracy.\nCon: One potential drawback of the Nikon Monarch 7 10×42 binoculars is the narrower field of view compared to some other models on this list. While it may not be a significant issue for most birdwatchers, those who prioritize a wider field of view may find it limiting when observing birds in flight or scanning large areas.\nBirdwatching Binoculars at Higher Values\nWhen I first started looking at binoculars, sticker shock set in quickly. I couldn’t imagine paying upwards of $1,000 for a pair. But I quickly learned that the difference in a $200 pair and a $1,000 pair are significant. Here are two options I recommend in the $1,000+ range. Let’s continue the birdwatching binoculars review with a selection from Zeiss and Swarovski.\nZeiss Conquest HD 10×42 – $999, 28 oz:\nPro: The Zeiss Conquest HD 10×42 binoculars are renowned for their exceptional optical performance. With high-definition glass and Zeiss’ T* multi-coating, these binoculars provide stunning image clarity, brightness, and color fidelity. The 10x magnification and 42mm objective lens allow birdwatchers to observe birds in intricate detail. The robust construction and ergonomic design make them comfortable to hold and use for extended periods.\nCon: The main drawback of the Zeiss Conquest HD 10×42 binoculars is the higher price point compared to other models on this list. While they offer top-tier optics, the premium cost may be a limiting factor for some birdwatchers on a budget.\nSwarovski EL 10×42 – $2,689, 29.5 oz:\nPro: The Swarovski EL 10×42 binoculars are considered the pinnacle of optical excellence in the birdwatching world. These binoculars feature Swarovski’s legendary technology, which offers an exceptionally wide field of view, edge-to-edge clarity, and true-to-life color reproduction. The 10x magnification and 42mm objective lens deliver breathtaking detail and brightness. The build quality is outstanding, with a rugged design and comfortable handling.\nCon: The primary downside of the Swarovski EL 10×42 binoculars is their high price tag. They are among the most expensive binoculars on the market, making them a significant investment for birdwatchers. The premium cost may be prohibitive for many enthusiasts, particularly those who are new to the hobby or have budget constraints.\nBird Watching Binoculars\nChoosing the right binoculars for birdwatching can greatly enhance your experience by bringing birds closer and allowing for detailed observations. Whether you opt for the Meopta MeoPro HD 10X42, Vortex Viper HD 10×50, Leupold BX-4 10×50, Leupold BX-5 Santiam HD 10x42mm, or GPO Passion ED 10x42mm binoculars, each model has its own strengths and features that cater to different birdwatching preferences.\nAre 7×35 binoculars good for bird watching?\nA pair of 7×35 binoculars could be a good choice. Many of those binoculars are lower in cost, lower in amenities and features, but may still offer the occassional user a nice viewing experience. I have an older pair of Vivitar binoculars in that size and they are good all around binoculars. They are typically used as an astronomy-type binocular, or as a multi-purpose option.\nWhat is the best magnification for bird watching binoculars?\nBirdwatching binoculars are typically 7x, 8x, or 10x. The 10×40 is a very popular size for birding.\nBy considering factors such as budget, magnification, objective lens size, weight, field of view, and optical quality, you can select the binoculars that align with your specific needs. Embrace the beauty of nature and enjoy the captivating world of birdwatching with the perfect pair of binoculars by your side.\nSometimes you can save money by buying a pair of binoculars that are used, demo, or open box models. This does come with some risk, but you can often save up to a few hundred dollars. On a high-end pair, it adds up to some serious saving potential.\nWhen selecting birdwatching binoculars, it’s crucial to prioritize the factors that matter most to you. Consider your budget, desired magnification, objective lens size, weight, field of view, and optical quality. Consider how and where you plan to use the binoculars, as well as your personal preferences.\nI hope you’ve enjoyed my birdwatching binoculars review.\nRemember that the best binoculars for birdwatching are the ones that allow you to immerse yourself in the beauty of nature, observe birds with clarity and detail, and enhance your overall birdwatching experience. Happy birdwatching!","domain":"optical_engineering"}
{"url":"https://atpm.ae/index.php/product/hikvision-4mp/","date":"2023-12-01T17:22:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100290.24/warc/CC-MAIN-20231201151933-20231201181933-00703.warc.gz","language_score":0.7844646573066711,"token_count":279,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__282147953","lang":"en","text":"Monitor an indoor or outdoor area with the white AcuSense DS-2CD2143G2-IU 4MP Network Dome Camera from Hikvision. This unit uses a 1/3″ progressive scan CMOS sensor to capture 2688 x 1520 resolution video at 30 fps. IR LEDs provide up to 98′ of night vision. The camera’s 2.8mm fixed lens delivers a 103° horizontal field of view. A built-in camera enables the camera to pick up audio. A memory card slot accepts microSD/SDHC/SDXC cards up to 256GB (available separately). Integrated PoE technology simplifies connectivity by enabling the transfer of power and data through a single cable.\nThis dome camera complies with ONVIF profiles G and S, making it compatible with a wide range of surveillance devices. The camera’s enclosure is IP67 and IK10 rated for outdoor use in areas at risk of vandalism.\nNetwork-attached storage support\nBest Price Guarantee\nWe offer the best price for Hikvision 4MP AcuSense Built-in Mic Fixed Dome Network Camera, H.265+ Compression Technology, 2.8mm Fixed Lens, Built In Microphone, IR LEDs For Night Vision, White | DS-2CD2143G2-IU in Dubai, UAE. Buy now with the best price!","domain":"optical_engineering"}
{"url":"https://wikimd.com/wiki/Crop_factor","date":"2024-04-25T00:38:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00332.warc.gz","language_score":0.9377712607383728,"token_count":568,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__22813883","lang":"en","text":"Crop factor is a term commonly used in photography to describe the relationship between the size of a camera's image sensor and the size of a traditional 35mm film frame. It is an important concept to understand when choosing lenses for a camera, as it affects the effective focal length and field of view.\nDefinition[edit | edit source]\nCrop factor, also known as focal length multiplier or lens factor, is a numerical value that represents the ratio of the diagonal measurement of a camera's image sensor to the diagonal measurement of a 35mm film frame. It is typically expressed as a decimal or a fraction.\nCalculation[edit | edit source]\nTo calculate the crop factor of a camera, you need to know the size of its image sensor and compare it to the size of a 35mm film frame. The crop factor is determined by dividing the diagonal measurement of the image sensor by the diagonal measurement of a 35mm film frame.\nFor example, if a camera has an image sensor with a diagonal measurement of 15mm and a 35mm film frame has a diagonal measurement of 43mm, the crop factor would be 43/15, which is approximately 2.87.\nEffects of Crop Factor[edit | edit source]\nThe crop factor of a camera affects the effective focal length and field of view of a lens. When a lens is mounted on a camera with a crop factor greater than 1, the lens's focal length is effectively multiplied by the crop factor.\nFor instance, if a lens with a focal length of 50mm is mounted on a camera with a crop factor of 1.5, the effective focal length would be 50mm x 1.5 = 75mm. This means that the lens would have a narrower field of view compared to when it is used on a full-frame camera.\nApplications[edit | edit source]\nUnderstanding crop factor is crucial when selecting lenses for a camera. It helps photographers determine the equivalent focal length of a lens on different camera systems. For example, a 50mm lens on a camera with a crop factor of 1.5 would have a similar field of view as a 75mm lens on a full-frame camera.\nCrop factor also affects depth of field. Since a lens with a longer effective focal length has a narrower field of view, it tends to produce a shallower depth of field compared to a lens with a shorter focal length.\nConclusion[edit | edit source]\nCrop factor is an important concept in photography that affects the effective focal length and field of view of a lens. By understanding crop factor, photographers can make informed decisions when selecting lenses for their cameras. It is essential to consider the crop factor when comparing lenses and understanding their impact on image composition and depth of field. Template:Photography","domain":"optical_engineering"}
{"url":"https://www.gopubmed.org/serrs.html","date":"2018-12-18T21:44:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829812.88/warc/CC-MAIN-20181218204638-20181218230638-00627.warc.gz","language_score":0.872117817401886,"token_count":512,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__16584004","lang":"en","text":"Single molecule Raman spectra of porphycene isotopologues.\nWarsaw, Poland. In Nanoscale, Feb 2016\nUNASSIGNED: Single molecule surface-enhanced resonance Raman scattering (SERRS) spectra have been obtained for the parent porphycene (Pc-d0) and its deuterated isotopologue (Pc-d12), located on gold and silver nanoparticles.\nThe genetic code of the fungal CTG clade.\nAveiro, Portugal. In C R Biol, 2011\nThis unique sense-to-sense genetic code alteration is mediated by a Ser-tRNA containing a Leu 5'-CAG-3'anticodon (ser-tRNA(CAG)), which is recognized and charged with Ser (~97%) by the seryl-tRNA synthetase (SerRS) and with Leu (~3%) by the leucyl-tRNA synthetase (LeuRS).\nFunctionalized nanoparticles for bioanalysis by SERRS.\nGlasgow, United Kingdom. In Biochem Soc Trans, 2009\nExamples of this approach include DNA hybridization to switch on SERRS (surface-enhanced resonance Raman scattering) when a specific target sequence is present, the use of nanoparticles for in vivo SERRS imaging and the use of nanoparticles functionalized with antibodies to provide a new type of immunoassay.\nQuantitative SERRS for DNA sequence analysis.\nGlasgow, United Kingdom. In Chem Soc Rev, 2008\nSERRS is an extremely sensitive and selective technique which when applied to the detection of labelled DNA sequences allows detection limits to be obtained which rival, and in most cases are better than, fluorescence.\nQuantitative surface-enhanced Raman spectroscopy.\nBelfast, United Kingdom. In Chem Soc Rev, 2008\nThe purpose of this tutorial review is to show how surface-enhanced Raman (SERS) and resonance Raman (SERRS) spectroscopy have evolved to the stage where they can be used as a quantitative analytical technique.\nSingle molecule analysis by surfaced-enhanced Raman scattering.\nWindsor, Canada. In Chem Soc Rev, 2008\nOur main objective in this tutorial review is to provide insight into some of the questions surrounding single molecule detection (SMD) using surface-enhanced Raman scattering (SERS) and surface-enhanced resonance Raman scattering (SERRS).","domain":"optical_engineering"}
{"url":"https://vostok-europe.com.au/pages/faq","date":"2020-08-14T10:56:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439739211.34/warc/CC-MAIN-20200814100602-20200814130602-00394.warc.gz","language_score":0.9126461744308472,"token_count":136,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__142650786","lang":"en","text":"Many of the Vostok-Europe models feature Tritium tubes (trigalights). These highly specialised light sources are manufactured by Mb-microtec of Switzerland and provide excellent illumination with no external power source and never need to be recharged by the sun or otherwise.\nTrigalights are tiny glass tubes that are laser sealed, internally coated with phosphorescence and filled with a minute amount of tritium gas. The permanent light occurs when the electrons emitted from the gas excite the phosphor. They do not require any external power source or require recharging and will glow continuously with a life span of more than 10 years. Click for more information.","domain":"optical_engineering"}
{"url":"https://www.itiball.com/products/glass-balls/","date":"2021-11-29T18:11:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358786.67/warc/CC-MAIN-20211129164711-20211129194711-00401.warc.gz","language_score":0.8904485702514648,"token_count":211,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__103750733","lang":"en","text":"Precision black glass balls are used in aircraft slip and turn indicators and other aircraft instrumentation. Black glass balls are also used in flowmeters for many industries including chemical processing and medical. Rotameters are a particular kind of flowmeter, based on the variable area principle. Precision balls provide a simple, precise and economical means of indicating flow rates in fluid systems. In rotameters, black glass balls are used as floats or sight indicators. Standard black glass balls have a density of 0.0914 lb/in3. Many other common rotameter floats are also available from ITI including orange glass balls, stainless steel balls, tantalum balls, tungsten carbide balls, ruby sapphire balls etc.\nWhen polished, both soda lime glass balls and borosilicate glass balls provide an extremely good seal making glass balls ideal for check valves in food processing, pharmaceutical, and photographic processing equipment. Glass balls are used in fiber optics applications because they can be made optically clear.","domain":"optical_engineering"}
{"url":"https://lab-fmg.uva.nl/en/participants/eye-tracker-research/participate-in-eye-tracking-studies.html","date":"2021-10-24T05:03:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585911.17/warc/CC-MAIN-20211024050128-20211024080128-00712.warc.gz","language_score":0.9542040824890137,"token_count":438,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__189870821","lang":"en","text":"An eye tracker is a small camera aimed at one or both eyes. This camera uses infrared light. The camera image can be used to measure where you are looking at and to measure your pupil size. Studies that make use of an Eye tracker do research on emotions for example, but most of the time the goal is to look at what you are looking at on a screen. These cameras are only focused on your eyes and therefore do not capture images of your face.\nIn most Eye Tracking studies, you as a participant will perform a certain task on a computer with the Eye Tracking camera facing your eyes while performing this task. Sometimes you will be asked to place your chin in a so-called chin rest so that your head and therefore your eyes remain in the same place. As a participant, you will perform the examination in a quiet room while the test leader is in the connecting room. You will receive instructions about the task in advance. The eye tracker study can also be combined with other types of measurements, such as physiological measurements, EEG and even MRI. In that case, this will always be clearly communicated to you prior to the appointment.\nDuring the examination you will be sitting in front of a computer with the camera facing your eye, the exact duration depends on the specific study. During the examination you will perform a \"task\" on the computer. This can look like a (simple) computer game or watching pictures or videos on the screen. How this task looks is entirely dependent on the question and purpose of the research. You will be informed in advance.\nYou do not need to prepare anything for an Eye Tracking study. However, you may be asked to remove your eye make-up in advance and (if you have both) wear lenses instead of glasses.\nIn principle, anyone can participate in eye tracking research. However, sometimes it is more difficult to get a good signal if you wear glasses or hard contact lenses, for example. A researcher therefore might choose not to use eyeglass wearers in the experiment. Always take a good look at which target group is being sought for the research you are registering for, and whether you belong to that target group.","domain":"optical_engineering"}
{"url":"http://stsci.edu/stsci-research/research-directory/jonathan-fraine","date":"2018-12-15T23:55:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827137.61/warc/CC-MAIN-20181215222234-20181216004234-00266.warc.gz","language_score":0.8019709587097168,"token_count":244,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__247346537","lang":"en","text":"Jonathan is a support scientist working on the James Webb Space Telescope Near-InfraRed Imager and Slitless Spectrograph (NIRISS) and the Near InfraRed Camera (NIRCam). He develops both high-level calibraiton pipelines and prediction engines for time series observations. His research is focused on exoplanet atmospheric abundances.\nJonathan is particularly fascinated with applying advanced machine learning algorithms to astrophysical data: deep neural networks, random forests, clustering, classification, and regression techniques.\n- JWST calibration for NIR time series observations\n- Exoplanet atmospheric abundance measurements\n- Predictions for exoplanet atmospheric measurements with JWST\n- Analyzing phase curve observations of exoplanets with Spitzer\n- Analyzing transmission and emission spectroscopy of exoplanets with Hubble-WFC3\n- Developing a deep neural network to detect small planets with Kepler, K2, and TESS\n- Advanced machine learning algorithms\n- Applying data science techniques to astrophysical observations\nResearch Topics: JWST, NIRISS, NIRCam, Infrared, Instrumentation, Exoplanets, Detection, Planet Formation, Atmospheres","domain":"optical_engineering"}
{"url":"http://www.brianbrownmd.com/vision-correction/cataract-surgery/restor-iol/","date":"2017-11-24T21:53:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934808972.93/warc/CC-MAIN-20171124214510-20171124234510-00284.warc.gz","language_score":0.9215269088745117,"token_count":194,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__94805286","lang":"en","text":"Cataract Surgery – ReSTOR IOL\nMany people with cataracts also are affected with presbyopia, age-related farsightedness (hyperopia). Unless something is done to correct this condition, such patients will still need reading glasses following cataract surgery. Fortunately, a new intraocular lens has been created that also addresses presbyopia.\nThe AcrySof® ReSTOR® IOL utilizes revolutionary lens technology to allow patients to see clearly at all distances. Most patients who are fitted with ReSTOR® lenses report that they no longer use glasses or contacts for any activities. More than 21 million AcrySof® have been implanted since 1994, making it the most widely used IOL brand in the world. Now the ReSTOR® IOL makes it possible for patients to eliminate cataracts and treat presbyopia at the same time.\nFor more information about ReSTOR® Click Here","domain":"optical_engineering"}
{"url":"http://mylestacb458.blog2learn.com/5235658/eye-surgical-procedure","date":"2018-06-23T17:40:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865145.53/warc/CC-MAIN-20180623171526-20180623191526-00091.warc.gz","language_score":0.9556909203529358,"token_count":1307,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__240284154","lang":"en","text":"Eye Surgical procedure has actually become a mainstream approach of vision modification, and this short article will certainly explain the benefits as well as disadvantages of 3 various techniques being provided to the medical customer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis and also is an eye medical system which completely deals with vision by eliminating a thin layer of the cornea. This treatment works best on clients with modest to high levels of nearsightedness (nearsightedness), low to modest degrees of hyperopia (farsightedness) and also astigmatism related to myopia, and also who have thick corneas. It is the most well-known medical vision correction technique.\nIndividuals with regular eye view see things plainly because pictures are brought into a proper centerpiece by the cornea as well as lens of the eye. Preferably, the cornea's curvature is equally matched to its size in a normal eye. People with astigmatism, myopia or hyperopia have off-and-on formed corneas, so the things seen are not concentrated properly. LASIK adjustments corneal form by precise removal of corneal tissue, and also by doing so corrects the eyes' concentrating power.\nThere are, however, threats to LASIK eye surgical treatment.\nThere is a remote possibility of complete loss of vision. If this occurs, it is normally due to the fact that the person had a pre-existing problem which ought to have precluded the surgical treatment in the first place, such as pregnancy, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. Individuals with huge pupils are also poor candidates for LASIK. Dry eye syndrome will certainly be aggravated by this procedure.\nA couple of clients whine that they permanently see \"ghost\" images, have actually obscured vision, reduced comparison as well as bad night vision. When LASIK wased initially introduced, 5% of patients had post-operative grievances; nonetheless, refinements in the procedure have actually created this rate to go down to much less than 1% if LASIK is executed by experienced professionals as well as clients are effectively screened before surgical procedure. If problems do happen, they can typically be resoved by a retreatment.\nFDA has approved LASIK laser eye surgery given that 1998. While there are a great deal of satisfied individuals, there are nevertheless no long term research studies about its impacts. Understand the restrictions as well as the threats of LASIK eye surgical treatment before you sigh up for the treatment.\nThough much less popular, these little implants could boost vision in patients with mild to moderate myopia without the danger of irreversible eye damage integral in the cells removal strategy of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to presume a flatter form. Though slightly much less accurate compared to LASIK, they are removeable and also Read Full Report changeable, so if the person has an unforeseen over- or under-correction, the implant could be gotten rid of and also another of a different size inserted to acquire the preferred improvement. The implants lie at the edge of the cornea, so the main visual area is entirely intact and intact, and also the strength of the cornea is undiminished, making it a much better choice for pilots as well as those that take part in contact sports where eye injury is a possibility.\nIntacs disagree for extreme myopia as well as greater than small astigmatism (1.00 diopters), as the cornea can just be stretched thus far. If the Intacs are removed, vision returns to its preoperative level. In addition to vision adjustment, Intacs are additionally used to treat keratoconus.\nIntacs are FDA authorized and also Ten Years studies have revealed no significant issues with Intacs and very few client grievances; nevertheless, since the procedure takes extra training than LASIK, there are fewer eye surgical treatment facilities providing it. Nonetheless, the Intacs website offers a checklist of experts in each state, also a few in Canada, Europe as well as Mexico.\nSince many individuals do not intend to take the chance of LASIK and Intacs can not click this link help those with extreme vision troubles, intraocular lens implants (IOL) are a new alternative authorized by the FDA in 2004 to fix modest to severe nearsightedness. The Artisan lens, produced by Ophtec, resembles the sort of lens implant used to recover vision adhering to cataract eye surgery.\nThe new IOL, called the Artisan, is planned for only people who have 2.5 diopters or less of astigmatism.\nThe artificial lens does not change the all-natural lens, but is placed before it. The main issue discovered with the implant was the steady loss of endothelial cells in the corneas of clients that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea as well as are essential in keeping the cornea clear. A three-year research study showed a continuous constant loss of endothelial cells of 1.8 percent a year. Now, no one could anticipate whether this loss will certainly continue at the exact same rate forever, or even its effect on corneal feature.\nTo reduce lasting effects of the tool on the corneal endothelium, the FDA is requiring that the new lenses be identified to specify that they should just be implanted in people whose corneal endothelial cells are thick enough to endure small cell loss.\nMore major issues were couple of: retinal detachment (0.6%), cataract advancement (0.6%), and corneal swelling (0.4%). The FDA is requiring Ophtec to perform a five-year follow-up survey of its implant patients to better analyze the post-surgical incidence of cataract advancement, retinal detachment as well as various other ocular conditions.\nThe Craftsmen lens is intended to be a permanent implant.Though it can be gotten rid of operatively, vision might not always go back to just what it was before obtaining the lens. Due to the fact that it does not influence astigmatism, people with this problem may still require glasses.","domain":"optical_engineering"}
{"url":"https://zhec.github.io/sceneflow/index.html","date":"2023-12-09T23:38:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100989.75/warc/CC-MAIN-20231209233632-20231210023632-00392.warc.gz","language_score":0.8922587633132935,"token_count":257,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__307957732","lang":"en","text":"Trained with raw stereo motion sequences in a self-supervised manner, our model learns to predict object motion (speed and moving direction) together with the scene depth using sequence of stereo images and object proposals as input.\nWe present a system for learning motion maps of independently moving objects from stereo videos. The only annotations used in our system are 2D object bounding boxes which introduce the notion of objects in our system. Unlike prior learning based approaches which have focused on predicting dense optical flow fields and/or depth maps for images, we propose to predict instance specific 3D scene flow maps and instance masks from which we derive a factored 3D motion map for each object instance. Our network takes the 3D geometry of the problem into account which allows it to correlate the input images and distinguish moving objects from static ones. We present experiments evaluating the accuracy of our 3D flow vectors, as well as depth maps and projected 2D optical flow where our jointly learned system outperforms earlier approaches trained for each task independently.\nQualitative results of our method. From left to right, reference image, depth, optical flow and instance-level moving object mask.\nCao, Kar, Häne, Malik.\nLearning Independent Object Motion from Unlabelled Stereoscopic Videos","domain":"optical_engineering"}
{"url":"https://www.cqinternet.com/22-lessons-learned-lenses.html","date":"2023-10-04T12:19:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511369.62/warc/CC-MAIN-20231004120203-20231004150203-00098.warc.gz","language_score":0.9646546244621277,"token_count":519,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__36163164","lang":"en","text":"How Optical Lenses Can Be of Benefit to You\nOptical lenses are very important day in many industries especially in different types of equipment and they play an important role in helping people achieve a number of tasks. In the optical industry today, there is a lot of variety especially when it comes to optical lenses, they are used in different ways and they have different types. Looking for companies that manufacture optical lenses is going to give you access to the types of lenses that you’re interested in. Most of these manufacturers can be found in a number of countries in addition to that, you can also make the orders from online. You can make your order for the lenses from the online platform and this will be very easy especially if you have a very long distance to cover to go to the physical premises. After buying the lenses that you’re interested in, you will notice that the company is keen on doing the shipment for you especially if you’re very far. These manufacturing companies are actually very essential especially because they will help you to make the payments in whatever method you want. By reading this article, you’ll get understand the main uses of optical lenses and why they are very crucial.\nIf you are either shortsighted or long cited or any other issue related to how you can see, one of the best forms of treatment that is used by doctors is optical lenses. Optical contact lenses are very important and because of that they are used in the medical industry but in addition, patients can decide to use glasses. The main materials that is used in the production of any of these lenses are the optical lenses. Because of how they are used in the treatment of such conditions, these optical lenses are very important. Photography is considered to be very important these days and lenses play an important role in this.One of the things that you’re going to realize is that the lenses are used in helping to get clear images but in addition to that, helping to zoom images. For the photography industry therefore, the optical lenses play an important role in the help people to create memories. Optical lenses are also used in the production or making of laboratory equipment that is used in the medical industry. Most of the optical lenses that are used in these industries have very strong magnifying power so that some of the minute details can be seen in an image.\nApart from all the above uses, the optical lenses have become very central in the operations of the companies that make the telescopes. Visiting these optical lenses manufacturers would be very important because to help you get all the above benefits.","domain":"optical_engineering"}
{"url":"http://waf.eps.hw.ac.uk/resources/aperturesynthesis_background.html","date":"2017-04-29T21:15:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123590.89/warc/CC-MAIN-20170423031203-00238-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8816880583763123,"token_count":1236,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__243910313","lang":"en","text":"Optical Aperture Synthesis (OAS) offers the possibility to achieve surveillance images with more than 100x the information content or 10x the range of current equipment. Our research in this area included an initial study of the risks associated with implementation of OAS in military applications and examined both passive and active synthesis imaging methods.\nOn this page you will find a brief mathematical description behind the principle of optical aperture synthesis and suggestions for further reading.\nThe complex visibility of an interference pattern produced by a pair of apertures (i.e. one particular baseline vector) is one particular Fourier component of the source brightness distribution (from the Van Cittert Zernike theorem). You can use a range of baselines i.e. aperture separations to obtain a range of spatial frequencies. The measured complex visibility is otherwise known as the mutual coherence function, which is given by:\nwhen becomes 0 we have the mutual intensity or complex visibility:\n- intensity in the direction where is a unit vector.\n- the vector separation (baseline vector).\n- is the component of the wave vector in direction\n- is the central wavelength.\n- is the solid angle.\nIn aperture synthesis we measure at different values of aperture separation and we get by inversion of equation 1 above.\nThe following is known as the fundamental equation for aperture synthesis:\nthen given a number of measurements of at different points in the UV plane i.e. for different point apertures we need to invert the equation to get . Using the inverse FT:\nWhen only measured at a limited number of points in the UV plane we need to replace the integral by the summation:\nW is a weight factor associated with the jth point. Then is the “dirty map” it is the convolution of the true I with a point spread function. So:\nIn practice the complex visibility includes instrumental and environmental perturbation effects which produce phase errors. Individual aperture phase errors may be eliminated by summing the phases round a closed loop of baselines i.e. phase closure. However phase closure should really only be applied to situations where signal to noise ratio is poor, otherwise it is rather an inefficient method of aperture synthesis. We are demonstrating the use of Redundant Spacings Calibration instead. This method is based on the principle that when the target is a large distance away the information collected by identical aperture pairs or baselines should be the same. Any difference arising must therefore be due to localised phase errors such as in atmospheric turbulence or in system calibration and a single aperture involved in a redundant baseline can be \"driven\" so as to match the phase of the resulting interference fringes. This self-calibration of the system can be done in a very small time scale without the need for \"off-line\" computations, again making it ideal for use in mobile imaging systems.\nThe phase relations can be regarded as a set of matrix equations to which there are more unknowns than knowns. Introducing redundant conditions makes the matrix full rank and a unique solution can be achieved.\nThis method does not give absolute object phase information. A relative phase plane is defined by three apertures and the rest are driven to match. However absolute phase information is not essential to reconstruct the image.\nThe principle of using multiple collecting apertures to sample an object can be used in reverse in a technique called Fourier telescopy. Whereby an array of apertures are used to project interference fringes of varying spatial frequency onto the target and by applying a phase shift to displace the interference pattern by π radians, a camera can integrate up the reflected light and the data collected is then exactly the form of the object's Fourier transform. This technique allows high resolution images to be taken from low resolution quality optics even with a wide field of view, gives high signal to noise ratio independent of resolution and can be used with RSC. This is useful in many aspects of metrology.\nBecause source coherence is required to produce a spatially coherent interference pattern on the target, laser speckle becomes an issue.\n- A.H. Greenaway, Optical Aperture Synthesis, Meas. Sci. Technol. 2, 1991.\n- A.H. Greenaway, Terrestrial optical aperture synthesis technique (TOAST), Opt. Comm., 58(3), p.149-154, 1986.\n- A.H. Greenaway, A.M. Johnson, A. Harvey, et al., Optical Aperture Synthesis, 1st Annual EMRS DTC Conference, Edinburgh, May 2004.\n- P.W. Gorham, Designing Optimal Bandwidth Synthesis Arrays for VLBI, TIMO progress report 42-133, May 1998.\n- T.J. Pearson and A.C.S. Readhead, Image formation by self-calibration in radio astronomy, Ann. Rev. Astron. & Astrophys., 22, p.97-130, 1984.\n- R.C. Jennison, A phase sensitive interferometer technique for the measurement of the Fourier transforms of spatial brightness distributions of small angular extent, 1958\n- M. Ryle and A. Hewish, The synthesis of large radio telescopes, August 24 1959\n- S.K. Saha, Emerging trends of optical interferometry in astronomy, Bull. Astron. Soc. India 27, p.441-546, 1999.\n- V.I. Mandrosov, Fourier telescopy imaging through strongly inhomogeneous atmosphere at high level of additive noises, Proc. SPIE Vol. 4538, p128-134\n- Born & Wolf, Principles of Optics, 7th expanded edition, Cambridge Press, 1999.\n- J.W. Goodman, Introduction to Fourier Optics, 2nd Edition, McGraw-Hill, 1996.\nIn this section you'll find background information for our research interests (past and present) and useful links to other sites.","domain":"optical_engineering"}
{"url":"http://www.ijgti.org.in/index.php/ijgti/article/view/108","date":"2019-03-26T19:04:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912205600.75/warc/CC-MAIN-20190326180238-20190326202238-00436.warc.gz","language_score":0.892748236656189,"token_count":296,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__41963168","lang":"en","text":"Satellite Image Compression Using Compressive Sensing\nSatellite images are multispectral or hyperspectral images, which are important for earth observation and military\nreconnaissance. However, there exists big incompatibility between the transmission capacity of satellite channel and large amount\nhyper spectral data. There are spatial and spectrum redundancy in hyper spectral image. As to exploit spectrum correlation\nsufficiently, it must be to pre-process hyper spectral image. In this paper, we propose a novel acceptable complexity lossy hyper\nspectral image compression scheme. Conventional approaches to sampling signals or images follow Shannon’s celebrated theorem,\nwhich says that the sampling rate must be at least twice the signal bandwidth (the so-called Nyquist rate). In fact, this principle\nunderlies nearly all signal acquisition protocols used in consumer audio and visual electronics, medical imaging devices, radio\nreceivers, and so on. Compressive sampling, also known as compressed sensing or CS, a novel sensing sampling paradigm that goes\nagainst the common wisdom in data acquisition. CS theory asserts that one can recover certain signals and images from far fewer\nsamples or measurements than traditional methods used.\nKeywords: Image compression; compressive sensing (CS); sparsity; discrete cosine transform (DCT); isometry; orthogonal pursuit\n- There are currently no refbacks.\nThis Journal is published by... Rizvi College of Engineering, Mumbai, India.","domain":"optical_engineering"}
{"url":"https://watchseriesonlinetv.co/kodak-dc280-device-82/","date":"2020-08-06T19:39:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737019.4/warc/CC-MAIN-20200806180859-20200806210859-00027.warc.gz","language_score":0.8972613215446472,"token_count":899,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__146385740","lang":"en","text":"The best camera bargains of Cameras Kodak DC – digital camera Series. Lets you copy, edit and enhance, organize, and print pictures from your picture card. Kodak Japan announce 2. Many cameras today include built-in image stabilization systems, but when it comes to video that’s still no substitute for a proper camera stabilization rig. Find out what’s new and notable about the Z6 in our First Impressions Review. Dec 23,\n|Date Added:||21 December 2014|\n|File Size:||9.65 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nSelecting close-up mode automatically zooms the lens to the telephoto end of its range, and adjusts the focusing to handle closer objects. USB cable, hand strap, lens cap, video cable. On the right is the shutter release, flash mode button, and zoom rocker switch. Olloclip has new pro and entry-level lenses for your phone One of the top names in phone camera lenses now has options for those who shoot a little or a lot.\nDigital cameras data sheet – Kodak DC Digital Camera Specifications, Features, Information\nThe DC’s zoom lens goes from a very wide focal length of 30mm to just beyond normal deviec 60mm in 35mm camera equivalents. If you reformat, you’ll need to reload.\nRoger Cicala and his team at Lensrentals tore down Canon’s third-generation mm F2. Dec 22, video. Each of these icons represents an operation that you can perform on the selected image.\nAs promised, Sony has delivered an incremental firmware upgrade for its a7 III and a7R III mirrorless cameras that fixes issues found in firmware version 2. Color night vision with the SiOnyx Aurora. DJI Ronin-S gimbal stabilization system. Dd280 measured the DC’s shutter lag at 1.\nFujifilm’s 4K video cameras. Lets you choose from one of three setting: We heartily applaud Kodak’s inclusion of the rechargeable batteries and charger in the box with the DC Kodak DC – digital camera Dec 24, Submit devicd News Tip!\nKodak DC280 Review\nThe LCD refresh is an improvement on older Kodak’s but still isn’t up to the quality of other digicams and still has little “sparkles” of colour noise in shadows. As with all Imaging Resource camera tests, we encourage you to let kdoak own eyes be the judge of how well the devices performed: Nikon Japan officially lists the D and D as discontinued.\nAt the high resolution, best quality setting, the average file size is about K. Higher drains can greatly decrease the effective capacity. This number, of course, will vary depending on the Quality setting Best, Better, Goodand the Resolution level setting High, Standard.\nAlso as with other cameras, the digital zoom only works when the LCD is turned on, because you’d have no way to tell what portion of the image was being viewed otherwise. Operation is quick, although you’re aware that the camera takes quite a while to write out to the CF card the activity LED indicates when kodaj camera is writing to the card.\nThen, you can use the DC’s Border feature to add the borders to your image prior to capture. Find out what’s new and notable about the Z6 in our First Impressions Review.\nSenior Editor Barney Britton’s pick this year is the camera that he describes as “close to perfect” for the kind of photography he does. Specifically, two series of 8MP images. At its highest quality setting, the DC produces image files large enough to make high-quality 8 dc2800 inch photographic prints. Lets you record the date and time that the image is captured on the image itself. The 3X digital zoom affords even closer inspection of your subject, with the ability to select zoom ratios in 0.\nWe’ve selected our favorite lenses for Sony mirrorlses cameras in several categories to make your decisions easier.","domain":"optical_engineering"}
{"url":"https://jobs.omnivore.vc/companies/pixxel-2/jobs/28841486-hyperspectral-scientist","date":"2023-09-21T21:07:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506045.12/warc/CC-MAIN-20230921210007-20230922000007-00029.warc.gz","language_score":0.8265894651412964,"token_count":511,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__64230196","lang":"en","text":"Pixxel is a pioneering satellite imagery company focused on leveraging hyperspectral data to drive innovation in various industries. We are seeking a talented Hyperspectral Scientist to join our dynamic team and contribute to the development of cutting-edge remote sensing solutions using our own constellation of hyperspectral imaging satellites.\nAs a Hyperspectral Scientist at Pixxel, you will play a pivotal role in advancing our capabilities in hyperspectral data analysis and interpretation. You will collaborate with interdisciplinary teams to create innovative applications that harness the potential of Pixxel's hyperspectral imagery. This role involves algorithm development, validation, and collaboration with data analytics teams to extract meaningful insights from complex satellite hyperspectral sensor data.\n- Algorithm Development: Design, develop, and implement algorithms for satellite image processing, analysis, and interpretation with an emphasis on leveraging the spectral content of hyperspectral data.\n- Validation and Verification: Conduct rigorous validation and verification of image processing algorithms and methodologies. Perform quality assessments and validation experiments to ensure the accuracy of results.\n- Collaboration: Contribute expertise in hyperspectral methods and phenomena to data analytics teams and provide technical guidance in the use of spectral data.\n- Communication: Document algorithms, methodologies, and results in technical reports, publications, and presentations. Communicate complex technical concepts effectively to both technical audiences and customers.\n- PhD or Master's degree in remote sensing, physics, geoscience or other similar discipline.\n- Experience working with hyperspectral imagery.\n- Proven experience in satellite image analysis, remote sensing, and image processing.\n- Experience with algorithm development for deriving physical properties from spectral data.\n- Experience in imagery analysis with Python, Matlab, R, or similar.\n- Excellent communication skills with the ability to work independently or collaboratively, and communicate with technical and non-technical audiences.\nAdditional good-to-have qualifications:\n- Experience with working with hyperspectral imaging hardware including radiometric and spectral calibration\n- Experience with radiative transfer models (e.g. libRadtran, MODTRAN)\n- Experience leveraging AI/ML tools to train, tune, test, and validate models.\nJoin us at Pixxel and be at the forefront of driving innovation through hyperspectral data analysis. Your expertise will shape the future of remote sensing applications across diverse industries.","domain":"optical_engineering"}
{"url":"http://www.newgadgetz.com/pentax-optio-wg-2-and-optio-wg-2-gps-rugged-digital-cameras/","date":"2015-11-26T12:19:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398447266.73/warc/CC-MAIN-20151124205407-00325-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.9122312068939209,"token_count":270,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__53844306","lang":"en","text":"If you’re an adventurer and currently looking for a rugged camera that also looks incredibly cool, Pentax has just the thing for you.\nPentax brings forward two new models, namely the Optio WG-2 and Optio WG-2 GPS rugged cameras. Both of these new models from Pentax are waterproof, shockproof and are able sustain temperatures down to minus 10 degrees.\nThe Pentax Optio WG-2 and Optio WG-2 GPS are 16 megapixels cameras coming with backlit CMOS image sensor and featuring 5x optical zoom, 28mm wide angle lens and a 3-inch LCD screen for preview.\nAdditional features include a detachable macro focus ring for perfect smooth focus and Digital Microscope mode using 6 macro LEDs. There are also a few modes included to enable you to take quality pictures including Pixel Track, Smile Capture, Face Detection, Movie Shake Reduction and Extended Dynamic Range.\nThe Pentax Optio WG-2 and Optio WG-2 GPS come with Full HD 1080p video 30fps and both support HDMI playback. You can store the captured video using SD/SDXC/SDHC cards.\nBoth of this new rugged cameras from Pentax will become available in March for $349.95 and $399.95, respectively.","domain":"optical_engineering"}
{"url":"https://latestsolarnews.com/ai-trained-to-rapidly-create-high-efficiency-perovskite-solar-cells/","date":"2023-12-07T03:41:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100632.0/warc/CC-MAIN-20231207022257-20231207052257-00481.warc.gz","language_score":0.9332636594772339,"token_count":530,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__45693393","lang":"en","text":"Revolutionary Breakthrough: AI Trained to Rapidly Create High-Efficiency Perovskite Solar Cells\nResearchers in Australia have achieved a groundbreaking feat, training artificial intelligence (AI) to produce solar cells made from the mineral perovskite in a remarkably short period of time. This cutting-edge approach has allowed them to bypass years of human labor and potential errors, leading to the optimization of these cells in just a matter of weeks.\nDr. Nastaran Meftahi, the lead author of the study and a researcher at RMIT University’s School of Science, highlighted that international teams have been in a race to develop perovskite solar cells that are not only cost-effective but also stable enough for long-term commercial use. Thanks to recent advancements, these cells have reached a level of stability where they can be considered for widespread deployment.\nPerovskite solar cells are particularly promising due to their potential to outperform traditional silicon-based solar cells in terms of efficiency and cost-effectiveness. However, the challenge lies in finding the optimal combination of materials and fabrication processes to maximize their performance.\nTo address this challenge, the researchers turned to AI. By training machine learning algorithms on vast amounts of data and simultaneously carrying out experimental work, they were able to rapidly identify the most efficient compositions and fabrication methods for perovskite solar cells. This process significantly accelerated the research and development cycle, which traditionally took years to achieve similar results.\nThe use of AI has enabled scientists to overcome human limitations and biases that often arise during optimization processes. It can quickly analyze and interpret vast amounts of data, identifying patterns and optimizing parameters that human researchers might overlook. As a result, the AI-generated solar cells exhibited improved efficiency and stability.\nThe team’s successful AI-driven approach demonstrates the enormous potential of this technology in accelerating scientific discoveries and technological advancements. It may also pave the way for further breakthroughs in other areas of research that require extensive optimization processes.\nThese findings bring us closer to the widespread adoption of perovskite solar cells in renewable energy systems, offering a viable alternative to traditional silicon-based technology. By streamlining the development process, AI could play a pivotal role in driving the transition towards cleaner and more sustainable energy sources.\nAs researchers worldwide continue to push the boundaries of AI-driven optimization, the potential for innovation in the field of solar cell technology is boundless. The next step will be to further refine the AI models and methods to continuously improve the performance and stability of perovskite solar cells, ultimately making them a commercially viable and scalable solution","domain":"optical_engineering"}
{"url":"https://www.fullframecreativeagency.com/blog/2015/8/20/we-got-a-new-drone","date":"2019-11-11T21:25:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496664437.49/warc/CC-MAIN-20191111191704-20191111215704-00056.warc.gz","language_score":0.933181643486023,"token_count":178,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__88896898","lang":"en","text":"Our new DJI Phantom 3 Professional drone\nOur real estate videos just got a whole lot better!\nImagine amazing, immersive aerial footage footage and photography at your fingertips. Imagine capturing content for the big screen, with crisp images, beautiful resolution, and vivid colors. With an integrated, stabilized camera, the Phantom 3 brings a new perspective to your listings. The Phantom 3 shoots in 4K video and 12 megapixels photography from as high up as 400 ft. What is 4k? It's effectively 4 times larger than an image in full HD. Images will be more detailed than you've ever seen them before. (Image to go with google 4K to show the difference)\nFlying indoors and low to the ground is easier than ever with with the vision positioning technology that uses visual and ultrasonic sensors that scan the ground for objects enabling it to identify objects and more more accurately.","domain":"optical_engineering"}
{"url":"http://ww1.microtek.com/Europe-E/Web/News.php?News=Press&Detail=true&PRE_Id=8&FirstData=0","date":"2014-10-25T04:12:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1414119647629.9/warc/CC-MAIN-20141024030047-00149-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.8990869522094727,"token_count":1055,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__93781708","lang":"en","text":"Microtek Launches ArtixScan 4000tf\nNew high-resolution scanner with exceptional technologies sets new standards in professional imaging\nRotterdam – Microtek, a pioneer in scanning technologies and a leader in graphic imaging solutions announces the launch of its latest film scanner, the ArtixScan 4000tf, the highest-resolution professional film scanner to hit the market.The ArtixScan 4000tf follows on the heels of the successful ArtixScan 4000t. This upgraded model incorporates built-in FireWire and USB interfaces for fast data transfer and ease of use.\nWith its 42-bit colour depth, the ArtixScan 4000tf can capture infinitely rich detail from 35mm slides, filmstrips, and Advanced Photo System (APS) film, allowing scans to be printed to pre-press standard at over A3 sizes. The scanner also features an optical range of 4.2 Dmax for delivering superb shadow and highlight details, as well as true optical resolution of 4000 dpi for razor-sharp images without sacrificing detail.\n\"The ArtixScan 4000tf is designed for users requiring a high-resolution scanner. Customers will be impressed by the ArtixScan 4000tf´s high resolution, sharpening, focus, and colour management features at such a competitive price.\" Commented Peter Stengel. Sales and Marketing Director.\"The ArtixScan 4000tf features some exceptional technologies for achieving superior images, including Auto Focus System, Motion Correction Control, and Multiple Sampling.\"\nFeatures and Benefits:\n- The Auto Focus System ( patent pending) adjusts the scanner carriage and APS film holder (instead of the lens position) to automatically achieve the most accurate focus. This robust design keeps the optical mechanical assembly system precisely calibrated at all times, enhancing the scanner´s reliability and ease of maintenance, as well as minimizing scan times.\n- Motion Correction Control ( patent pending), was developed by Microtek to address problems with scanner motor deviation arising over the course of the scanner´s life. The scanning module, located at the scanner carriage position and driven by a stepping motor and other guiding mechanics, is subject to deviations for any number of reasons, causing certain tolerances tobuild up. As deviations and tolerances accumulate the scanning module gets increasingly \"off\" in its position, which if left uncorrected negatively impacts the quality of subsequent scanned images. Through Motion Correction Control, the scanning module is moved accurately to a precise position on a well-calibrated stepping control table, compensating for any misalignments that may occur. The scanning module can thus move smoothly and precisely during the scanning process, registering mechanical steps with ultra-fine precision for superior, accurate scans.\n- With Multiple Sampling, the ArtixScan 4000tf is able to reduce the random image noise that adversely affects the quality of scanned images. With this technology, each scanned line is sampled multiple times (the frequency determined by users in 2, 4, or 8 options) to optimize signals, with the samples then averaged out to distill top-quality data. Multiple sampling effectively minimizes signal fluctuation and artifacts, resulting in a purer image output and enhanced optical density range.\n- ArtixScan 4000tf provides a fast and easy way to handle film. A 6-frame filmstrip holder and a 4-frame 35mm slide holder are included in every standard package, and an APS film holder is available as an optional accessory. The ArtixScan 4000tf can detect the type of medium being scanned to increase your scanning productivity and shorten your scan times.\nPowerful Scanning Software Package adds outstanding value. Included in every ArtixScan 4000tf package are Microtek´s ScanWizard Pro™ TX 6 scanning software and the Microtek Scanner ICC Profiler software.\nMicrotek´s ScanWizard Pro TX 6 is an advanced scanner controller program that provides many powerful and professional-level features for film and slide scanning. ScanWizard Pro TX 6 uses the LCH colour model, which is a more intuitive way of working with colours according to visual perception and based on the values of Lightness (the \"L\" in LCH), Chroma (C), and Hue (H). The software also includes the Selective Colour Tool, which is used to perform colour correction to a specific colour range without altering the other colours in an image; and the Filter Tool, which applies special effects such as Blur or Unsharp Masking to your images.\nWith the Microtek Scanner ICC Profiler, users will be able to precisely calibrate the scanner using Kodak, Agfa, or Fuji´s IT8 targets. The software also generates ICC profiles based on the individual colour \"signature\" or characteristics of each scanner, so that colours can be reproduced consistently and predictably for optimal results.\nMicrotek, one of the World’s largest manufacturers of Desktop scanners for PC and Macintosh platforms was founded in 1980 in Taiwan and has always offered high quality products combined with a ‘solution-out-of-the-box’. Microtek offers probably the widest range of flatbed and film scanners that address the needs of most end users. Microtek quality products provide ease of use with value for money.","domain":"optical_engineering"}
{"url":"https://legendtech.com.hk/en/list-4-22","date":"2024-02-24T01:46:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474482.98/warc/CC-MAIN-20240224012912-20240224042912-00014.warc.gz","language_score":0.8978599905967712,"token_count":419,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__154235408","lang":"en","text":"Dynamic lighting allows users to adjust the brightness and color temperature of tunable white LED luminaires in real-time and freely. Users can use dynamic lighting to provide the most suitable lighting atmosphere for the space or create unique lighting effects to meet particular needs. Since tunable white light applications mainly involve color temperature ranges such as warm white, neutral white, and cool white, some people will refer to such applications collectively as \"Human-Centric Lighting\" or \"Circadian Lighting\". As our solution focuses on the commercial application of this technology, we tend to use the term \"Dynamic Lighting\" to describe our solution. On the other hand, some simple solutions on the market allow users to select a specific color temperature from several color temperatures through a DIP switch and then adjust the light, which does not fall within the scope of our discussion.\nTunable White LED Fixtures\nThe most apparent difference between Tunable White and regular LED lights is that Tunable White LED lights have three or four leads (Cool White+/-, Warm White+/-) for connection. Tunable White LED lights consist of a pair of warm and cool white LED strings. Thus, unlike regular LED lights with a specific color temperature value (e.g., 3000K, 4000K), tunable white LED lights have a particular color temperature range; the individual color temperature value of the LED strings defines the overall color temperature range available for adjustment (e.g. 2700K - 4000K).\nSince Tunable White LED Fixtures require the simultaneous control of both LED strings to control the overall light's brightness and color temperature,Dynamic Lighting requires a slightly more complicated control method than typical dimming. Note that simply tying both strings' positive leads (negative leads) in parallel doesn't produce the expected brightness and color temperature changes. We can see here the surface mounted and recessed downlights are indeed Tunable White fixtures that share the same form factors as dimmable or non-dimmable LED fixtures. That is, the fundamental difference between Tunable and regular LED lights lies in the lighting control.","domain":"optical_engineering"}
{"url":"https://www.ukcrossbows.co.uk/rifle-scopes","date":"2024-04-20T23:02:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00781.warc.gz","language_score":0.9617378115653992,"token_count":556,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__92066670","lang":"en","text":"This scope by Norica features a variable zoom between 3 and 9 times, which makes this perfect for close and far shooting. The 3-9x40 scope is a mid range scope and is suited best for high powered spring air rifles,\nThe use of this scope is discouraged on GRS rifles...\nThis scope has been designed with airguns in mind, specifically pest controllers. The scope is fitted with a larger 50mm lens that allows more light into the eye for higher contrast and easier target acquisition.\nThis scope has a zoom range of 3-9x which makes it perfect for 12ft/lb air rifles an..\nThis scope is the best for GRS rifles, The scope is reinforced on the inside to withstand strong impact of the piston and it also has a rail mount, it has an adjustable objective to set what you need to set it at...\nThis scope is perfect for mid range and perfoms brilliantly for high powered rifles, the scope is made by Norica. This scope comes complete with mounts to put your scope onto your rifle. The scope is also fitted with a high quality 32mm lens and features a 4x zoom.\nThis scope is discouraged to ..\nThis scope is perfectly built for high powered spring and Co2 rifles, inside the scope there is a 40mm lens that is just a little bit larger than the 4x32, due to it being larger more light gets into the scope meaning the shooter always has a clear view of their target. This scope is made by Norica...\nAt just 24cm long, the Extra Compact is a little scope that’s big on features. The 3-9 times magnification it provides is ideal for field work, and this is further enhanced by the sturdy turret caps, which give you the confidence of knowing your alignment is secure.\nComes equipped with mounts.The..\nThe Resurrection FFP Scope really is a king among rifle scopes. This top-of-the-range, side-focus scope features lockable target-style turrets, which allow easy adjustment for those extra-long-range shots. They remain securely locked in place, so you can be confident your rifle stays aligned between..\nAlthough this is their entry level scope, it still has all the premium features and quality you expect from a London Armoury product.\nThis hard-wearing and elegant scope is made from black anodised aluminium, which is durable, yet decorative and pleasantly textured.Available in two sizes:3-9x404-..\nThis Mount from Norica was built to add scopes onto your rifles to ahcieve better accuracy when shooting, The mount is a two piece mount and black meaning no light reflections get in the way of you shooting...","domain":"optical_engineering"}
{"url":"http://www.minuta.co.kr/technology/tech_overview_e.html","date":"2015-05-28T17:45:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-22/segments/1432207929561.80/warc/CC-MAIN-20150521113209-00062-ip-10-180-206-219.ec2.internal.warc.gz","language_score":0.9054486751556396,"token_count":352,"dump":"CC-MAIN-2015-22","global_id":"webtext-fineweb__CC-MAIN-2015-22__0__31590168","lang":"en","text":"The technology developed by Minuta Tech. is about the unconventional nano-patterning, which was already published and registered in the form of technical paper and patent disclosure.\nWe have applied for 38 domestic patents and 5 international patents. Some of the applications are now registered.\nWe can provide the technology which make it possible to make a pattern down to half of 0.1¥ìm which is considered the limit of lithography technology in semiconductor industry.\nMoreover, three dimensional shape, which can not be easily formed with the existing photo lithography device, can be formed with very ease.\nMinuta tech has pioneered various application areas and provided a low cost alternative to optical and e-beam lithography applications.\nThe unconventional patterning technology can be categorized as follows;\n- RTIL (Room Temperature Imprint Lithography)\n- CFL (Capillary Force Lithography)\n- Soft Molding\n- Flash Replication\n- Anisotropic Buckling\n- State of the art patterning technique\n- MOLD & Patterning Material\nUsing above mentioned technology, Minuta tech. can\n1. replicate the same shape as in the master from micro scale to nano scale without any deformation.\n2. apply for making non-spherical optical lens or optical elements such as micro concave or convex\n1. lens, prism and diffusing reflector etc.\n3. perform the patterning using the PR(photo resist) and enlarge the scope of PR usage for various pattern\n1. forming scope.\n4. deal with the a variety of organic and inorganic material and satisfy the application need.\n5. provide a low cost alternative to optical and e-beam lithography applications.","domain":"optical_engineering"}
{"url":"http://www.loudountimes.com/index.php/news/article/reston_hospital_center_debuts_new_real_time_robotic_imaging898","date":"2017-03-28T09:58:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189686.56/warc/CC-MAIN-20170322212949-00372-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9006507992744446,"token_count":518,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__41672539","lang":"en","text":"Reston Hospital Center debuts new real time robotic imaging\nDr. Nicholas Lailas of The Urology Group used the technology to remove a tumor from a patient’s kidney.\nWhen asked about the new imaging technology, Lailas praised the hospital for its willingness to use the innovative technology.\n“I am so proud of Reston Hospital Center’s commitment to being at the forefront of this innovative technology. Florescence imaging combined with the new 3-D, HD camera gives the surgeon clear anatomical landmarks to better mark the normal and diseased tissue,” Lailas said in a news release. “We can now perform complex kidney surgery in a more sparing manner using a minimally invasive approach. The imagery that the Firefly upgrade provides us will now allow better visualization of the renal vasculature and differentiate a healthy perfused kidney versus tumor. This will result in improved oncologic outcomes.”\nThis new fluorescence imaging system, called Firefly, creates an enhanced visual field for surgeons, allowing for more accurate assessments and surgeries.\nThe new technique incorporates a redesigned 3-D HD camera that is mounted on one of the four arms of the da Vinci Si surgical robot. The specially designed camera and endoscopes allow surgeons at Reston Hospital Center to capture images of tissue and surrounding blood vessels by injecting a unique green colored dye that's activated by near-infrared light. The camera can switch views between standard real time images and images illuminated by the dye.\nThe technology also allows surgeons to differentiate between malignant and normal tissue as the surgery is performed because cancerous tissue stains less brightly than normal tissue.\nBe the first to post a comment!\nPost a commentCommenting is not available in this channel entry.\nComments express only the views of the author and do not necessarily reflect the views of this website or any associated person or entity. Any user who believes a message is objectionable can contact us at [email protected].\n- EDITORIAL: Brewer’s reinstatement comes with an inconvenient truth\n- Serenity now: The Woodhouse Day Spa to host grand opening\n- Loudoun Sheriff’s Office K9 takes down Sterling woman\n- The alleged ‘Incognito Bandit’ bank robber arrested at Dulles Airport\n- Loudoun County Sheriff’s Office makes five drunken driving arrests over the weekend\n|The Loudoun Times-Mirror\nis an interactive, digital replica\nof the printed newspaper.Click here for all e-editions.","domain":"optical_engineering"}
{"url":"http://www.spectrascience.com/index.php/news/spectrascience-strengthens-intellectual-property-portfolio","date":"2017-04-28T19:50:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123048.37/warc/CC-MAIN-20170423031203-00172-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9020937085151672,"token_count":415,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__312726747","lang":"en","text":"SpectraScience Strengthens Intellectual Property Portfolio\nSAN DIEGO, September 8, 2011 (MARKETWIRE) - SpectraScience, Inc. (OTCQB:SCIE), a San Diego based medical device company, today announced it was recently granted a new tissue- analysis patent, further strengthening its optical biopsy patent portfolio. The patent granted is U.S. PATENT No. 8005527, \"Method for Determining a Condition of a Tissue\". The patent can provide the company expanded capabilities relating to its WavSTATTM Optical Biopsy System using light-based techniques to differentiate pre-malignant from normal tissue.\n\"The granting of this new patent is indicative if our commitment to improving and expanding our already large intellectual property portfolio in this space. The diagnosis and detection of cancer, non-invasively using light, is becoming an increasingly more important tool for oncologists\", says Michael Oliver, President & CEO of SpectraScience. Mr. Oliver continued, \"We will continue to emphasize developing new intellectual property to support our current and future non-invasive, real-time cancer diagnostic systems.\"\nSpectraScience currently holds thirty-three U.S. Patents relating to optical diagnostic systems and forceps, spectral analysis and imaging techniques. In addition, the company holds approximately twenty-five active foreign counterpart patents, primarily in the European Union and Japan.\nAbout SpectraScience, Inc.\nSpectraScience is a San Diego based medical device company that designs, develops, manufactures and markets light-based analysis systems capable of determining whether tissue is normal, pre-cancerous or cancerous without physically removing tissue from the body. The WavSTAT Optical Biopsy System uses light to optically diagnose tissue and provide the physician with an immediate analysis. With FDA approval for sale in the U.S. and the CE Mark for the European Union, the WavSTAT System is the first commercially available product that incorporates this innovative technology for clinical use.\nJim Dorst, Chief Financial Officer","domain":"optical_engineering"}
{"url":"https://munich-quantum-instruments.com/about","date":"2024-03-05T00:36:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476592.66/warc/CC-MAIN-20240304232829-20240305022829-00222.warc.gz","language_score":0.9067924618721008,"token_count":335,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__50654149","lang":"en","text":"We are a team of five founders who share a passion for quantum technologies and their potential to revolutionize science and society.\nAt Munich Quantum Instruments, we develop state-of-the-art photonic quantum sensors that can be applied in breakthrough discoveries and disruptive applications such as optical quantum computers, quantum sensing, deep space optical communication, and quantum communication.\nOur mission is to make quantum phenomena accessible on an industrial scale, enabling everyone to benefit from the upcoming quantum revolution. We believe that quantum technologies are truly disruptive and will enable novel applications, much like how the internet revolutionized our daily lives.\nAlready, high-speed quantum computers are at work, quantum encryption ensures highly secure information transfer over long distances, and extremely sensitive quantum imaging is providing new insights into life sciences. Join us on this exciting journey towards a quantum future.\nAt Munich Quantum Instruments, we have a highly skilled and experienced founding team with over 15 years of experience in developing quantum sensors. Our team's expertise in this highly specialized field gives us a significant edge, and we are proud to be at the forefront of the quantum revolution.\nBut we don't stop there - our team also brings over 9 years of industry and startup experience to the table, giving us a broader perspective on how to run a successful business. We are passionate about our mission to revolutionize the field of quantum sensing and bring quantum technology to the masses.\nAs our company grows, we are proud to lead a diverse and international team of quantum engineers, software developers, and business experts from Munich's thriving quantum ecosystem.\nMunich Quantum Instruments is grateful for the support and collaboration of the following partners and funding agencies:","domain":"optical_engineering"}
{"url":"http://storagepartsdirect.com/hpe-455855-001-10gbe-sfp-c-class-transceiver-module-for-bladesystem/","date":"2018-08-18T23:58:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221213903.82/warc/CC-MAIN-20180818232623-20180819012623-00571.warc.gz","language_score":0.6711316108703613,"token_count":165,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__153049885","lang":"en","text":"HPE 455855-001 10GbE SFP+ C-Class Transceiver Module for BladeSystem\nThe HPE 455855-001 is a 10GbE SFP+ (Small Form-factor Pluggable Plus) C-Class Short Range Standard Multi-mode Fiber 300m 850nm LC Connector Transceiver Module for BladeSystem. It comes with 3 Years Manufacturer Warranty.\nDevice Type: 10GbE SFP+ Transceiver Module\nForm Factor: Plug-in module\nOther Details: C-Class Short Range Standard Multi-mode Fiber 300m 850nm LC Connector\nCompatibility: This Transceiver Module has designed for HPE BladeSystem\nContact us with any questions or to verify this model’s compatibility with your current server or storage array.\n3 Years Warranty","domain":"optical_engineering"}
{"url":"https://www.wlwt.com/article/fbi-someone-is-pointing-lasers-at-airplanes-in-kentucky/13091857","date":"2021-10-18T10:04:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585201.94/warc/CC-MAIN-20211018093606-20211018123606-00607.warc.gz","language_score":0.9469102025032043,"token_count":182,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__125678062","lang":"en","text":"FBI: Someone is pointing lasers at airplanes in Kentucky\nSomeone is shining a laser at airplanes in Kentucky, officials with the Federal Bureau of Investigation said Wednesday.\nIt’s happened several times over the past few months. Officials said most have happened around Hustonville, Kentucky, between 9 and 11 p.m.\nIt’s a federal crime, punishable by large fines or imprisonment.\nFBI officials said it’s a hazard for pilots, who can be distracted or temporarily blinded by light from a laser beam.\n“Individuals often do not realize that traveling over hundreds of feet a tiny, two-centimeter laser beam spreads to become approximately six feet of light that can block a pilot’s vision,” FBI officials said.\nMost laser strike incidents happen at flights under 10,000 feet, with the highest percentage being altitude under 6,000 feet.","domain":"optical_engineering"}
{"url":"http://worldwide.vendanything.com/category/278/Electronics/listings/124358/Mini-X-Ray-CCD-Camera-Camcorder.html","date":"2018-06-23T19:39:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865181.83/warc/CC-MAIN-20180623190945-20180623210945-00582.warc.gz","language_score":0.9225748181343079,"token_count":520,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__115750149","lang":"en","text":"Seller's Comments and Description:\nReal miniature X-Ray camera / camcorder equipped with a special optical CCD lens that will allow you to penetrate a surface object and view what is underneath it. Simply view the images on the built in LCD screen or upload to your PC or laptop via the included USB or connect to your TV, VCR or suitable display if you order the non LCD screen versions and you are ready to see the unseen, this camera has many useful applications, such as detecting concealed items and uncovering document forgeries, however you should not think of this camera as a portable X-Ray machine similar to the ones used in the medical profession as it is not capable of seeing through dense objects, however you will be able to see through certain materials and coverings.\nThe science behind this amazing camera is quite simple:\nUnder normal light conditions both visible and infrared light can pass through certain material types covering an object and are then reflected by the objects surface, but the reflected visible light is too strong and saturated for the naked eye to see, however, the clever trick that this camera performs is to filter out the unwanted reflected visible light and allow only the reflected infrared light along with the required visible light to pass making the covered object surface visible.\nDue to the nature of this X-Ray camera / camcorder and it's ability to see through certain types of clothing, discretion must be used in its operation, and it should not be used to invade someone's privacy.\nYou will actually be able to penetrate and see what normally will be invisible to the naked eye.\nWaterproof - can be used underwater.\nBuilt in very small camera lens (3mm in diameter).\nBuilt in screen for viewing while recording, instant play back, forward, rewind, capture video or still images.\nPlayback on built in screen or transfer files to PC or Laptop via USB connector (included).\nBuilt in rechargeable batteries. The built in rechargeable batteries last up to 2 hours. (charger included) charging time 2 hours.\nRecords up to 8 GB of video or snapshot images.\nUndetectable X-Ray camera that is very simple to operate.\nPowerful adjustable exposure function.\nCompletely safe to use.\nThis item should not be used to invade personal privacy and may not be allowed in certain countries, it should not be used to break any laws governing the use of such equipment, please check you local laws before you place your order!\nPlease visit the web site link for more information.","domain":"optical_engineering"}
{"url":"https://code.kaytouch.biz/hasselblad-x1d-a-compact-mirrorless-medium-format-camera/","date":"2023-09-29T14:38:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510516.56/warc/CC-MAIN-20230929122500-20230929152500-00170.warc.gz","language_score":0.9086478352546692,"token_count":669,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__219007099","lang":"en","text":"With every camera being handmade in Sweden, the X1D is actually a special piece of hardware. It’s also apparently a compact mirrorless medium format camera — and that’s a first, actually. The X1D combines Scandinavian sensibility with beautiful performance. Small enough to take anywhere, powerful enough to capture anything.\nHasselblad is one of the most venerable names in photography – its cameras have gone to the moon, after all – but some would argue the value of their $30,000 cameras has been diluted by modern DSLRs and mirrorless cameras, which constantly improve their image quality in much smaller, cheaper packages\nTo out this camera, Hasselblad turned its focus to size and optical quality. The X1D has a 50MP CMOS sensor, ISO range from 100 to 25,600, and 14 stops of dynamic range. It also shoots in full HD with dual SD card slots, GPS and WiFi. Viewing options for all your future shots would include a 3-inch 920K pixel touch display, or a 2.36MP XGA electronic viewfinder.\nWith just the 3200 mAh battery loaded, the X1D weighs 725 grams, which is lightweight for a medium format camera.\nYour port options are straightforward: a USB-C connector, mini-HDMI and audio in/out. Hasselblad also weather and dust sealed the X1D, so it’s adventure-friendly.\nRegarding lenses, Hasselblad launched a new line of XCD lenses with integral central shutters; 45 and 90mm versions are available at launch. Thankfully, the X1D is still compatible with all 12 lenses from the pro H System, but requires an adapter, naturally.\nIf you’re not familiar with the photography jargon, ‘medium-format’ means the sensor is much larger than even top of the line cameras like the Sony A7R II or Canon EOS 1DX. Those cameras have a 36 x 24 mm chip,. The X1D’s is 50 megapixel sensor is 44 x 33 mm – 68 percent larger.\nGiven that sensor size is one of the biggest determinants of image quality – not to mention Hasselblad’s history – you can expect this thing to take spectacular photos. It also just looks really pretty.\nSpecs for the photo nerds\n- 725 g / 1.59 lb\n- Dust and Weather sealing\n- 50 MP 43.8 x 32.9 mm CMOS sensor\n5.3 μm pixel pitch\n- XGA Electronic viewfinder\n- 3-inch rear touchscreen with “smartphone style” UI\n- Dual SD Card slots\n- GPS (at a later date)\n- 14 stops dynamic range, 14-bit color\n- 1.7 to 2.3 captures per second\n- Native ISO 100 – 25,600\n- 60 minute to 1/2000 shutter speed\n- 1/2000 flash sync\n- 1080p video\n- Mini HDMI, Audio In/Out\nMSRP? $8,995, which is about right for a medium format camera, especially something from the Scandinavian imaging company.","domain":"optical_engineering"}
{"url":"https://delfintech.com/products/skinphototyper/","date":"2023-12-06T21:31:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100603.33/warc/CC-MAIN-20231206194439-20231206224439-00291.warc.gz","language_score":0.8609402179718018,"token_count":379,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__270274448","lang":"en","text":"SkinPhotoTyper – Objective assessment of skin phototype\nSkinPhotoTyper is a fully portable and wireless instrument for measuring the skin phototype. The device utilizes scientifically validated measurement technology. Skin phototype is measured based on the ITA degree and classified with a scale from 1 (very light) to 6 (dark) similar to Fitzpatrick scale. Skin phototype assessment helps in adjusting the power of the IPL and laser devices before hair removal to increase the safety of the treatment. Additionally, skin phototype measurements can be used in tattoo removal, chromotherapy aesthetic care or in any study related to skin pigmentation.\nMeasures skin phototype based on ITA degree\nHelps in adjusting the power of IPL or laser device before hair removal\nUtilizes scientifically validated measurement technology\nReadings unaffected by device contact pressure and ambient light\nPortable and battery operated\nFast and convenient measurement\nCalibration check tool included\nContact us for more information\nWhite LEDs corresponding to daylight are arranged circularly inside the measurement chamber of the SkinPhotoTyper. When the SkinPhotoTyper is gently placed on the skin, the LEDs illuminate the skin in the angle of 45 degrees to minimize gloss. The reflecting light from the skin is detected with an RGB color sensor.\nThe measurement is not affected by ambient lightning conditions and the optical orifice of the SkinPhotoTyper is designed to minimize possible blanching effects caused by the contact pressure against the skin.\n- Dimensions: 198 x 40 x 35 mm\n- Weight with batteries: 145 g\n- Two user changeable batteries, size AA\n- Measurement time: 1.5 seconds\n- Illuminated skin area: 0.3 cm²\n- Illumination source: 3 white LEDs\n- RGB measurement range: 25 – 246\n- Measured RGB peak wavelengths (nm): 620/540/460","domain":"optical_engineering"}
{"url":"http://blog.medical-supplies-equipment-company.com/2011/03/laser-safety-goggles-q.html","date":"2017-04-30T22:24:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917125881.93/warc/CC-MAIN-20170423031205-00642-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9371947050094604,"token_count":550,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__324209031","lang":"en","text":"Laser Safety Goggles Q & A\nCan eye and eye area damage be avoided by the use of laser safety goggles?\nYes providing the laser safety goggles or glasses that are worn are correctly selected based on the laser system in use. Laser safety goggles or glasses can be selected either by the wavelength of the system where they will be in use or through the specific type of laser used. Since goggles cover both the areas around the eyes as well as the eyes themselves they do provide maximum coverage and protection. They are more comprehensive in their protection that laser safety glasses even with side shields.\nLaser safety goggles are a good option when used with Class 4 lasers or some Class 3 lasers since they provide very complete protection to all areas of the eye and around the eye. They are also a good option when there is the possibility of splashes or contamination by liquids when radiation is also in use. Goggles may be more comfortable for people that wear prescription glasses, especially if the goggles are specially designed just for this factor. Many people simply prefer goggles because they are very easy to adjust to any head size with a simple loosening or tightening of an elastic strap that goes around the back of the head.\nI need to wear prescription eyeglasses or contacts, how does that work with laser safety goggles?\nLaser safety goggles tend to have a much larger lens area that extends beyond where a traditional laser safety glass lens would sit on the face. This allows space for prescription eyewear under the goggles while still providing the maximum amount of protection of the eye itself as well as the delicate skin surrounding the eye. Contact wearers are more fortunate in that they can wear either goggles or laser safety glasses without any discomfort. Therefore, prescription eyeglasses can be effectively worn with laser safety goggles. Keep in mind that the lens on laser safety goggles or glasses can be customized to a prescription lens if so desired with most prescriptions and with most styles of safety eyewear.\nWhat is Optical Density and why does it matter with laser safety goggles?\nOptical density or OD is a measurement of the attenuation or reduction of the light entering your eyes from a particular wavelength. Each particular waveband or wavelength of a laser is different so the OD or reduction factor to make the light safe for your eyes will be different. In general OD is a number which indicates a factor of 10. Therefore an OD2 would indicate that the lens is safe for use with a specific laser because it reduces the wavelength hitting the eye by a factor of 100 or 10 times 10. If you do not use the laser safety goggles or glasses designed for a specific laser emission you will not provide the attenuation or reduction in the light wave to protect your eyes from damage.","domain":"optical_engineering"}
{"url":"https://simonlydeals.co.uk/news/time-of-flight-the-future-of-smartphone-tech-is-here/","date":"2021-05-09T23:28:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989018.90/warc/CC-MAIN-20210509213453-20210510003453-00527.warc.gz","language_score":0.9356975555419922,"token_count":651,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__16826715","lang":"en","text":"In recent years, there’s been a degree of stagnation in smartphone evolution.\nScreens range from OLED to AMOLED, Full HD to Ultra HD, 4K to QHD. Yet they’re all equally adept at making app content and photos appear bright and sharp on-screen.\nSimilarly, cameras have gradually expanded their megapixel total and aperture rating without materially improving their (already very impressive) standards of photography.\nHowever, after years of increasingly negligible evolution, 2020 could be a year of camera revolution.\nHole-punch selfie cameras are beginning to appear, while another potential innovation involves time of flight cameras, commonly referred to as depth cameras.\nOften hyphenated, and generally abbreviated to ToF, time of flight technology bounces a laser off any objects in front of it, mapping the depth of an environment before it’s captured.\nThis light-based sonar sibling compiles a picture of what’s being viewed through the camera lens, measuring the range of different objects with nanosecond accuracy.\nIn turn, that helps the camera’s software to identify specific elements which can then be blurred out for bokeh effects, or focused on for additional clarity.\nMany high-end smartphones already incorporate ToF cameras, including the Samsung Galaxy S20, LG G8 ThinQ and the Huawei P30 Pro.\nIt’s also been widely predicted that the next iPhone will incorporate ToF technology.\nBut do time of flight cameras really represent a great leap forward for amateur photographers, or is this another small step in smartphone evolution?\nBenefits of time of flight cameras\nThe more information a camera’s processor receives about the environment it’s about to photograph, the more accuracy its software can deliver in the finished picture.\nThis is particularly important given the modern vogue for blurred backgrounds and pin-sharp foregrounds – former staples of product photography now adopted by the selfie generation.\nA ToF sensor can measure distance and volume both inside and outdoors within a fraction of a second, with sensors capable of supporting photography at 60fps.\nThis could simplify 3D photographs, which can already be taken on devices with video recording capabilities or dual lens cameras, via apps including Fyuse and PopPic.\nCompanies like ROKiT, DING and Yocophone already manufacture smartphones with 3D cameras, but these products aren’t on sale in the UK.\nAnother benefit of a ToF camera is its ability to focus in low light, since the infrared beams used for calculating distance to subject are just as effective in what we’d call pitch darkness.\nThe result is greater detail in night shots, with less grainy backgrounds or flooding from light sources.\nAnd because those infrared beams are ideally suited to identifying and tracking (or avoiding) obstacles, ToF sensors could easily be co-opted into augmented reality services.\nThey could help to ensure smartphone users don’t walk into objects while studying a camera projection on their screen, for instance.\nWith AR expected to grow rapidly in popularity, this could underpin rising adoption of ToF technology among smartphone manufacturers and consumers alike.","domain":"optical_engineering"}
{"url":"https://shinymetalboxes.net/2022/01/25/do-people-have-to-walk-really-fast/","date":"2023-06-04T17:10:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650201.19/warc/CC-MAIN-20230604161111-20230604191111-00636.warc.gz","language_score":0.9163117408752441,"token_count":201,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__170412439","lang":"en","text":"Owl Autonomous Imaging has developed and patented “monocular 3D thermal imaging and ranging solutions.”\nThe company’s tech is applicable to automotive advanced driver assistance systems (ADAS).\nAccording to Owl, current ADAS systems generally use “mutually dependent visible-light cameras and radar” that can be negatively affected under certain conditions. Like night and/or rain.\nSo the Owl system is meant to overcome those limitations by using HD thermal imaging and the appropriate computer vision algorithms that are capable of creating “ultra-dense point clouds and highly refined object classification.”\nIn other words, objects like people and other animals generate heat and this system is able of detecting it.\nHere’s the curious thing: the tech that Owl is developing for automotive use is predicated on “a thermal ranging solution developed under a challenge grant from the US Air Force to track missiles in flight traveling at over 1,000 mph.”","domain":"optical_engineering"}
{"url":"http://4eye.tripod.com/yazienglish/lasikandprk.html","date":"2019-04-20T11:10:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578529606.64/warc/CC-MAIN-20190420100901-20190420122901-00415.warc.gz","language_score":0.9246105551719666,"token_count":332,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__170697698","lang":"en","text":"LASIK and PRK Methods\nIn the last years Excimer laser is being applied together with a cornea surgery on the high diopter myopic eye. This method is called as LASIK.The first method of excimer laser used is PRK. In the PRK method the laser is applied directly to the corneal surface.But in the LASIK method, a thin corneal flap(160 or 180 microns) with a nasal or superior hinge is separated from the surface.After the laser is applied, the flap is get closed to the cornea. With this method the result is better and the risk is minimal.In the PRK method the patient can not open his/her eyes during 2 days after the laser treatment. But in the LASIK method the eyes are not closed after the surgery. Patient can go to work the day after surgery. So, the LASIK method is preferred. The sight in the LASIK is slightly blurred on the first days as it is on the PRK method. But this blur disappears day by day.The best sight will be within 10 days.\n.. Some patients may have a near-sightedness problem for a few days.\nLaser PRK and LASIK methods can be applied to astigmatism and hyperopia too.\nIs Laser harmful?\nEverything in our life has a risk. Nevertheless, Excimer Laser has not an important risk.The most frequent complication seen is over or under correction. It is easy to correct these problems.\nThere is no blindness\nrisk or damage on the eye by the Excimer Laser.","domain":"optical_engineering"}
{"url":"https://www.c-clearantifog.com/collections/gel-cups","date":"2024-02-26T01:46:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474649.44/warc/CC-MAIN-20240225234904-20240226024904-00306.warc.gz","language_score":0.9033207893371582,"token_count":140,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__202401391","lang":"en","text":"Spread the gel with your index finger tip until the lens is completely covered.\nWorking it into the edges of lens and frame.\nLightly buff with a clean, dry lint free cloth (microfiber cloth) to remove the haze.\nRepeat Steps 1-4 on the 2nd lens and on the outside of each lens.\nNote: C-Clear will not stop fogging 100% on Rx lenses with anti-reflective \"AR\" coating. It will help dissipate the fogging some. C-Clear GEL also helps prevent scratches by stopping dust particles from building up on the lens surface which cause scratches when wiped \"dry\" without C-Clear lens cleaner.","domain":"optical_engineering"}
{"url":"http://whonphoto.com/2012/04/fx-vs-dx-full-frame-vs-crop-sensor/","date":"2023-06-03T20:43:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649343.34/warc/CC-MAIN-20230603201228-20230603231228-00680.warc.gz","language_score":0.931368350982666,"token_count":735,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__9226466","lang":"en","text":"Fstoppers posted a great question we’ve all heard many times.. If you were forced to only use one lens for the rest of your life, what would it be? Check out their full post here http://fstoppers.com/poll-the-one-lens-to-rule-them-all and let them know what you think!\nPersonally I chose the 50 prime. Arguably the best lens for your money on the market, no matter what brand you shoot with! Relatively cheap, plus super light weight, great F/Stop range, and amazing macro lens. But thats not the only reason I chose the 50 prime. I chose the 50 prime because of Crop Factor (Crop Factor is not specific to the 50mm, it applies to all lenses and all cameras). Personally I shoot with the D3 & hopefully some time soon the D800, both FX (full frame) cameras with an option to shoot in DX mode. DX is Nikons code for a cropped sensor. In a nutshell a cropped sensor will automatically zoom any lens you put on the camera. Bam! This lens is 50mm on my FX camera, and 75mm on my DX camera! Two lenses in one!! It does the because the sensor isn’t large enough to cover the entire area of the glass. (on a lens designed for FX bodies) DX lenses are designed for cropped sensors, but the focal length measurements remain the same. Focal length is the result of a formula comparing the distances of the front and rear glass elements of the lens to the camera’s sensor (of film). Read more on focal length on Wikipedia. So mechanically the focal length of a lens never changes when you put it on a FX or DX camera. Its specifically the size of the sensor that magnifies the image on a DX body. This is where it gets slightly confusing.. Different lenses are designed specifically for FX or DX cameras. If you are Nikon, you can use any lens with any body. Other brands do not offer this flexibility. There are however some limitations you should be aware of.\nFor this example I’m sticking with 50mm, to my knowledge there are no 50mm lenses designed specifically for DX (cropped sensors), but for simplicity I made one up.\nStarting to make sense? Essentially the only thing a full frame sensor does is give you the true focal length for each lens you put on your camera. It makes every lens a bit wider when compared to the same lens on a DX camera. Now this does affect several other aspects of your photography! For example, depth of field on each lens will change. So be careful not to get to used to focal lengths on your DX camera if you ever plan to upgrade to a FX body, everything will change! Personally I love having one FX and one DX camera in my bag at all times. Why, because it doubles the lens options I have without paying for additional lenses! Previously I shot with the Nikon D3 and Nikon D300s, but recently sold the D300s to replace it with the D800, which is a FX body, reasons behind this can be found in the blog post Gear.. I wrote a while ago. (little insight, the D800 is a beast and produces great DX shots!) If you have no experience with either a FX or DX camera, check out BorrowLenses.com and rent one!\nRent something, play with your focal lengths & Keep Shooting!\nRemember to ask any questions in the comments or on FormSpring! I don’t want you leaving confused!","domain":"optical_engineering"}
{"url":"https://nursing.amaze1990.com/astronauts-observing-from-a-space-station-need-a-telescope-with-a-light-gathering-power-15000-1-answer-below/","date":"2021-06-13T05:09:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487600396.21/warc/CC-MAIN-20210613041713-20210613071713-00301.warc.gz","language_score":0.9179123044013977,"token_count":132,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__184351321","lang":"en","text":"Astronauts observing from a space station need a telescope with a light-gathering power 15,000 times that of the dark-adapted human eye (Note: see problem 4), capable of resolving detail as small as 0.1 arc seconds at a wavelength of 550 nm, and having a magnifying power of 250. Design a telescope to meet their needs. Could you test your design by using it to observe stars from the surface of Earth?\nDon't use plagiarized sources. Get Your Custom Essay on\nAstronauts observing from a space station need a telescope with a light-gathering power 15,000… 1 answer below »","domain":"optical_engineering"}
{"url":"http://bmn-673.com/there-is-no-confocal-microscope-optimized-for-single-molecule-imaging-in-live/","date":"2022-10-02T20:14:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337339.70/warc/CC-MAIN-20221002181356-20221002211356-00678.warc.gz","language_score":0.9239203929901123,"token_count":1215,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__190706665","lang":"en","text":"There is no confocal microscope optimized for single-molecule imaging in live superresolution and cells fluorescence imaging. cAMP receptors, was cleaned with IB stream (5?mM KH2PO4, 5?mM Na2HPO4, 6 pH.4) and incubated with Halo-TMR (50?nM; G8252, Promega, Fitchburg, WI) blended in IB barrier for 30?minutes with mild banging. After the incubation, was cleaned 17321-77-6 supplier with IB barrier three situations. The period of time between cleaning techniques was 10?minutes. The cells had been harvested by mildly pipetting, relocated to a chambered coverglass (Lab Tek II, Nunc, Penfield, NY), and incubated for 10?min for the attachment of the cells to the surface. The chambered coverglass was cleaned just before starting the tests by sonicating it sequentially in deionized water, 1?M KOH, and ethanol, and finally dried by using In2 gas. For imaging of the cAMP receptor, a 532-nm green laser was used with an intensity of 20 mW. The exposure time of the CCD camera was 50?ms, the width of the confocal slit was 40 are not single-molecule images but blurs due to nonuniform illumination of the HILO microscope. In the absence of free dye, the quality of single-molecule images obtained using our HILO microscope was similar to that obtained using the line-scan confocal microscope (Fig.?S1), indicating that both microscopes were properly optimized. We also demonstrated that the line-scan confocal microscope is compatible with single-molecule fluorescence resonance energy transfer (FRET) measurements. To do FRET experiments, the optical setup in Fig.?1 was slightly modified (Fig.?S2). We could successfully monitor the two-state dynamics of the 17321-77-6 supplier Holliday junction by monitoring fluorescence intensities of donors and acceptors labeled at the ends of the Holliday junction (Fig.?2 cells with TMR-labeled cAMP receptors (Materials and Methods). Single cAMP receptors could be clearly visualized on both the basal and apical surfaces of the cell (Fig.?3,?and?were imaged on both the basal (and and Fig.?S5). This result suggests a potential of the new microscope for single-molecule imaging at the tissue level. However, it is true that our experimental conditions are different from those in tissues, and single-molecule imaging at the tissue 17321-77-6 supplier level has yet to be demonstrated. Discussion It is well recognized that for cellular imaging, confocal microscopy has a number of advantages over HILO and SPIM. Nevertheless, credited to the poor level of sensitivity of obtainable video-rate confocal microscopes presently, this image resolution technique can be not really utilized for single-molecule research in live cells or for superresolution fluorescence image resolution. Can be this a fundamental limit of confocal microscopy? It can be known that the fast scanning service setting of single-pinhole-based confocal microscopes will not really offer plenty of photons to?differentiate sole substances from record sound. Spinning-disk or line-scan type confocal microscopes perform?not have the same problem. We asked whether these confocal microscopes could be optimized to provide single-molecule sensitivity. In the case of spinning-disk confocal microscopes, single-molecule images can barely be obtained using a highly sensitive camera as a detector (26), and it is generally agreed that single-molecule images of satisfactory quality and photostability cannot be obtained using commercial spinning-disk confocal microscopes, due to significant signal loss in the detection route (2 most Mouse monoclonal to CD4 likely,18). To address the relevant query, we used the line-scanning technique for the fresh microscope. Different variations of line-scan confocal microscopes possess been developed over recent years (27C30), and some of these have been commercialized (Meridian, InSIGHT PLUS; Bio-Rad, DVC 250; Zeiss, LSM 7 LIVE). However, none of these models provide single-molecule detection capability. We developed a line-scan confocal microscope with superior single-molecule detection sensitivity. The microscope is based on our unique double-scanning method; the illumination line on the sample plane and the fluorescence image on the CCD camera were synchronously scanned using independent galvanometric 17321-77-6 supplier scanners. Compared to HILO microscopy, the new technique has the advantage that single-molecule imaging can be done in much deeper regions and with several times better signal/sound proportion. Likened to SPIM in the first style, which needs particular optical style and test planning procedures, the brand-new microscopy is certainly suitable with regular cell-imaging methods completely, and as a result, single-molecule imaging may be very much even more completed at absolute depths up to many hundred or so microns from the quickly?glass surface area. Although Bessel-beam and iSPIM airplane lighting cannot however offer single-molecule pictures, very clear single-molecule pictures can be easily obtained using the new microscope. Conclusion Single-molecule fluorescence imaging in cells has been pivotal to our understanding of several fundamental questions of cell biology, but its application deep inside the cell has been difficult to achieve due to technical limits of the currently available microscopes. We have developed video-rate confocal microscopy with excellent single-molecule detection efficiency and optical-sectioning capability, and we have exhibited that this technology 17321-77-6 supplier makes it easy to.","domain":"optical_engineering"}
{"url":"https://www.sjsu.edu/people/christopher.smallwood/","date":"2022-10-02T10:02:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337307.81/warc/CC-MAIN-20221002083954-20221002113954-00523.warc.gz","language_score":0.8932783007621765,"token_count":291,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__167186888","lang":"en","text":"Assistant Professor, Physics & Astronomy\nResearch webpage: https://smallwoodgroup.wordpress.com\nPreferred: (408) 924-5270\n- PhD, Physics, UC Berkeley, 2014\n- MA, Physics, UC Berkeley, 2010\n- AB, Physics, Harvard University, 2005\nChristopher Smallwood's research focuses on spectroscopy studies of solid-state materials, and on the development and characterization of interferometric optical devices. He received an AB in Physics from Harvard College in 2005 conducting optical measurements of rubidium vapor, and he received a PhD in Physics from UC Berkeley in 2014 developing photoemission spectroscopy techniques to study high-temperature superconductors. From 2014-2018 he worked as a postdoctoral researcher, first at JILA (University of Colorado and the National Institute of Standards and Technology) and then at the University of Michigan, where he developed and used ultrafast spectroscopy techniques to study light-matter interactions in solids. Between college and graduate school, he also taught fifth grade from 2005–2007 with Teach For America at Leo James Leo Elementary School in Mission, TX. He is the recipient of a National Research Council postdoctoral Research Associateship award at NIST, and the 2013 Lars Commins Memorial Award in Experimental Physics at UC Berkeley.","domain":"optical_engineering"}
{"url":"https://freesolarenergytraining.com/nanotechnology-and-the-latest-solar-power-advances/","date":"2020-05-29T23:31:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347406785.66/warc/CC-MAIN-20200529214634-20200530004634-00030.warc.gz","language_score":0.9257007837295532,"token_count":1142,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__190896692","lang":"en","text":"Keeping Up With The Latest Solar Power Advances.\nStudents of modern solar energy technology need to be aware that the science is constantly changing ( for the better). Scientist and engineers ( great career path by the way) are constantly challenging the status quo when it comes to what is possible with solar technology.\nMaterials engineering advancements are making it possible to generate electricity from the sun in ways that were never possible before today. Nanotechnology is opening new doors to such materials. One of these is the concept of windows that not only pass light but also generate electricity.\nBuildings of the future.\nNew buildings may come equipped with windows that can generate their own electricity, thanks to a finding of a team led by Jacqui Cole, a materials scientist from the University of Cambridge, UK, currently based at the U.S. Department of Energy’s (DOE) Argonne National Laboratory.\nFor the first time, Cole and colleagues determined the molecular structure of working solar cell electrodes within a fully assembled device that works like a window.\nLatest Solar Power Advances.\nThe finding, published in Nanoscale, helps advance smart window technology that could enable cities to move closer to the goal of being energy sustainable.\n“We just need a modest boost in performance to make these solar cells competitive.” – Jacqui Cole, 1851 Royal Commission 2014 Design Fellow, based at Argonne.\nThe experiments were performed on dye-sensitized solar cells, which are transparent and thus well-suited for use in glass. Attempts to create smart window technologies have been limited by the many unknown molecular mechanisms between the electrodes and electrolyte that combine to determine how the device operates.\n“Most previous studies have modeled the molecular function of these working electrodes without considering the electrolyte ingredients,” Cole said.\nOur work shows that these chemical ingredients can clearly influence the performance of solar cells, so we can now use this knowledge to tune the ions to increase solar photovoltaic efficiency.\nTo make the discovery, Cole (the 1851 Royal Commission 2014 Design Fellow) and her colleagues used neutron reflectometry to probe the function and interplay of the electrolyte ingredients with electrodes of the dye-sensitized solar cells. Neutron reflectometry, similar to X-ray reflectometry techniques, allows scientists to measure the structure of thin films with high resolution. But it was the fact that the tests were performed in a window-like system that made for a significant discovery.\n“Prior research considered the working electrodes outside the device, so there has been no path to determine how the different device components interact,” Cole said.\nOur work signifies a huge leap forward as it’s the world’s first example of applying in situ neutron reflectometry to dye-sensitized solar cells.\nPrevious efforts to characterize the dye/titanium dioxide interface in these solar cells have been limited to determining this interfacial structure within an environment exposed to air or in a solvent medium. Because of these constraints, these solar cell environments are essentially artificial with limited relevance for window applications.\nJacqui Cole, a materials scientist from the University of Cambridge, based at Argonne, led the research team that discovered a way to potentially enhance the efficiency of solar cells.\nSolar Power Advances Continue To Drive Down The Cost Of Solar Electricity.\nWith this discovery, however, Cole and colleagues have moved beyond artificial constraints. In doing so, they can better understand how a thin-film electrode containing titanium dioxide, a naturally occurring compound found in paint, sunscreen and food coloring, can have a huge impact on solar cell efficiency.\nOur work has shown that certain chemical ingredients, some of which have so far been overlooked, can clearly influence the photovoltaic performance of these solar cells.\nMore efficient solar cells like these can move smart window technology closer to the marketplace, said Cole, adding that the science is almost there.\nWe just need a modest boost in performance to make these solar cells competitive, since price-to-performance governs the economics of the solar cell industry. And manufacturing dye-sensitized solar cells is very cheap relative to other solar cell technologies.\nPerformance-wise, the cells recently broke a world record with a power conversion efficiency of 14.3 percent using a dye-sensitized electrode featuring two co-sensitized metal-free organic dyes. These dyes “promise cheaper, more environmentally friendly synthetic routes and greater molecular design flexibility than their metal-containing counterparts,” according to the paper.\nThe discovery was made with colleagues from the University of Cambridge, United Kingdom, the Australian Nuclear Science and Technology Organization and the Rutherford Appleton Laboratory, UK. Researchers are continuing to apply this materials characterization technique to dye-sensitized solar cells, which could reveal further molecular secrets and lead the way to future energy applications.\nArgonne National Laboratory seeks solutions to pressing national problems in science and technology. The nation’s first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America’s scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy’s Office of Science.\nSource Argonne National Laboratory.Solar energy technology and education is most important to our readers . So we bring you this!","domain":"optical_engineering"}
{"url":"http://amsoft.profimailing.cz/gxnsnnec/b12086-night-owl-optics-night-vision-battery","date":"2021-02-25T13:14:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178351134.11/warc/CC-MAIN-20210225124124-20210225154124-00627.warc.gz","language_score":0.8043587803840637,"token_count":1127,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__52373760","lang":"en","text":"var addy40218 = 'viko-optech' + '@';\nThe Wraith is high-resolution is made for all hunting applications including predator, hog and even deer. //--> www.pinor.com.uy, Police Co., Ltd.\ndocument.write( addy97444 ); document.write( addy54766 ); Fax: 0030-210-9627347\n//--> var suffix = ''; var attribs = ''; This e-mail address is being protected from spambots. var addy4757 = 'kyle' + '@'; 886-2-2960-8877\nNight Owl Optics NOXM50 Night Vision Monocular $75. However, if you were a hunter, you would know that these would scare away prey as well as alert predators of your presence. document.write( '<\\/a>' ); With a simple button mapping, this riflescope can be operated easily.\nvar attribs = ''; This e-mail address is being protected from spambots. Its optics are coated and come with a cap and the body is well-constructed. //--> 3150 Commercial Avenue\ndocument.write( '' ); addy54945 = addy54945 + 'gofoto' + '.' + 'se'; However, they are also quite rare and expensive. var addy54473 = 'info' + '@'; //--> This item: Night Owl Optics 5-Power NOXM50 Night Vision Monocular $238.49. B-Dul Camil Ressu, NR 15, BL 57\nvar prefix = 'mailto:'; To find one, you should compare your options well by looking into the finish, weight, dual usage, reticle, glass optics, range, battery life and durable construction. 3 Ruco Close, Bush Hill Office Park, Ostrich Road, Bromhof\nNight vision scopes run on batteries. This e-mail address is being protected from spambots. 800-678-8585\nFax 84 8 35513 203\nWhile they are more cost-efficient, you should also take note that these types are generally bulky and heavy. You do not have to miss any victory and your activities to be captured for sharing with your friends and loved ones. It can offer you the best results in capturing your target better.\nvar addy22147 = 'ngtl' + '@'; Therefore, the user can have 6 options of eye view with 4 colors depend on the visual requirement of any situation. www.redliv.com, La Red Electronica\ndocument.write( '' ); var suffix = ''; 518-563-6656\ndocument.write( '' ); document.write( '' ); www.starlite-intl.com, South's Finest Sporting Goods\ndocument.write( '<\\/a>' ); The infrared illuminator utilizes light emitting diodes (LED’s) operating in the infrared range and will not harm your eyes like a laser. var path = 'hr' + 'ef' + '='; +49-(0)89-13010031\nvar path = 'hr' + 'ef' + '='; var path = 'hr' + 'ef' + '='; Night vision scopes make it virtually possible for hunters to spot and acquire targets when shooting in low light settings. Its greatest asset comes with a night vision that is named as Equinox Z digital Night Vision. This e-mail address is being protected from spambots. That means the user can comfortably see the aim larger because the lens can be zoomed up to 9th times. document.write( addy67066 ); var path = 'hr' + 'ef' + '='; It is important to note that Add On Cameras are not compatible with all systems. Sightmark Photon 6.5x50S Digital NV. The human eye is limited in terms of seeing at night. If you are interested in becoming a Night Owl Optics Dealer via E-Commerce or Drop Ship, please contact one of our Distributors below. Popular choices include digital scopes, traditional scopes and IR scopes. In this Night Owl Optics NightShot Scope review, I am going to show you where it shines the most and where the budget element is felt the most. Further, the adjustment of this riflescope’s windage and elevation is easy. Gen 1 quality, high resolution 640x480 display and a frame rate of 30 FPS gives you a clear choice for nighttime accuracy. That way, you can use your scope for a long time. document.write( '<\\/a>' ); It also comes with an 850nm IR Illuminator that can be removed and it can also detect a range of 200 yards. var attribs = ''; Fax: +40-21-324 9184\nvar attribs = ''; //--> This e-mail address is being protected from spambots. addy4757 = addy4757 + 'majorsurplus' + '.' + 'com'; Adorama Camera\naddy39373 = addy39373 + 'sightsofnature' + '.' + 'dk'; //--> //--> These classes offer a reliable performance and used by most beginners. 506\nwww.siegert.at, Sights of Nature","domain":"optical_engineering"}
{"url":"https://www.hhbarnum.com/barnum-banner-laser-measurement-excellence-webinar/","date":"2022-05-24T08:48:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662570051.62/warc/CC-MAIN-20220524075341-20220524105341-00214.warc.gz","language_score":0.8757418394088745,"token_count":129,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__73787003","lang":"en","text":"Precision measurement is more important today than ever before. The manufacturing shop floor demands easy-to-use laser measurement solutions to ensure accuracy, control quality and improve production time. This HH Barnum / Banner Engineering Webinar will cover five incredible laser measurement sensor solutions, helping you choose the sensor that best fits your application – every time.\nPlease join us for this quick webinar to learn more about the awesome sensors advantages available to you from the Barnum/Banner Team!\nOn-demand Webinar Request Form\nBelow are some helpful links related to this webinar. Watch the full webinar for a more in-depth look!","domain":"optical_engineering"}
{"url":"https://reviewedbypro.com/xled-malware-attacks-applying-router-leds/","date":"2019-03-26T00:00:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912204736.6/warc/CC-MAIN-20190325234449-20190326020449-00165.warc.gz","language_score":0.9315557479858398,"token_count":395,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__109508566","lang":"en","text":"Malware can appear in many forms and use various techniques, but the xLED malware is very unusual and novel. This malware has the capability to infect a router or a switch in order to steal information by flashing LEDs.\nAccording to the researchers at Bleeping computer, the xLED was established and engineered by an Israeli-based team at the Cyber Security Research Center at the Ben-Gurion University. The team has experience using LED on a drive and a drone to record the information. However, routers and switchers enable attackers to perform larger volume data capture due to more LEDs.\nThe video illustrates the xLED working principle in order to covert data exfiltration using router LEDs: https://www.youtube.com/watch?v=mSNt4h7EDKo\nOnce the target router or switch is infected with malware, the data theft proceeds by converting information into numerous formations of ones and zeros. Then, every single LED on the device refers a binary digit. If the LED is on, it stands for one, and when it is off, it marks a zero.\nA camera is also required to monitor the information. So, in this case, a drone can be used to look through a window, corrupt a security guard to set up a camera or hack a security camera. The monitoring technique depends on the situation.\nIn addition to that, applying optical sensors provides the best recording results. Optical sensors are able to record the LED flashings at a larger sampling rate. The combination of optical sensors and multiple LEDs, which monitor an individual router or switch, helped researchers reach a data stealing rate of 1,000 bits per second per LED.\nHowever, there are some difficulties with this malware procedure, including installing it and infecting the router or switch. In addition, xLED is only an aim of the research and not an actual attack vector, but manufacturers should keep this in mind as a potential weakness in the network.","domain":"optical_engineering"}
{"url":"https://incomethrone.com/tiny-chip-can-quickly-identify-hundreds-of-thousands-of-dna-sequences/","date":"2022-12-01T23:01:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710870.69/warc/CC-MAIN-20221201221914-20221202011914-00609.warc.gz","language_score":0.9337788820266724,"token_count":132,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__255357152","lang":"en","text":"A metamaterial that can detect a huge array of gene fragments within 5 minutes could lead to devices for medical diagnostics or environmental monitoring\n23 August 2022\nA test that can detect hundreds of thousands of different fragments of DNA sequences, proteins or antibodies could be built onto a tiny silicon chip. Researchers say the technology could lead to devices for medical diagnostics or environmental monitoring.\nJack Hu at Stanford University in California and his colleagues created a metamaterial from silicon that can identify gene fragments just 22 nucleotides long within 5 minutes. When a sample is placed on the chip and near-infrared light is shone on one side of the …","domain":"optical_engineering"}
{"url":"http://m.luxsky-light.com/info/describe-the-power-led-package-luminous-effici-19535605.html","date":"2021-03-03T23:13:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178367949.58/warc/CC-MAIN-20210303230849-20210304020849-00502.warc.gz","language_score":0.9249602556228638,"token_count":879,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__180471557","lang":"en","text":"LED because of its green, environmental protection and many other advantages, is considered to replace incandescent, fluorescent and other power consumption, pollution of the traditional lighting source of the revolutionary solid light source. Conventional LED is generally bracket, the use of epoxy resin package, the power is small, the overall luminous flux is not large, high brightness can only be used as some special lighting. With the LED chip technology and the development of packaging technology, comply with the field of high luminous flux LED lighting products, power LED gradually into the market. This power-type LED is generally the light-emitting chip on the heat sink, the above assembly of optical lenses to achieve a certain optical spatial distribution, the lens filled with low-stress flexible silicone.\nPower LED to really enter the field of lighting, to achieve the daily lighting of the family, its problems to be solved there are many, one of the most important is the luminous efficiency. Currently on the market power LED reported the highest lumen efficiency of 50lm / W or so, far less than the daily requirements of the family lighting. In order to improve the power LED luminous efficiency, on the one hand the efficiency of its light chip to be improved; the other hand, power LED packaging technology also need to further improve, from the structural design, material technology and process technology and other aspects to improve the product Encapsulation efficiency.\n2. Encapsulation elements that affect the efficiency of light extraction\n1. Cooling technology\nFor light-emitting diodes consisting of PN junctions, when the forward current flows from the PN junction, the PN junction has heat loss, which is radiated into the air via adhesive, potting material, heat sink, etc., during this process. Part of the material has a thermal resistance to prevent heat flow, that is, thermal resistance, thermal resistance by the device size, structure and material determined by the fixed value. The thermal resistance of the LED is Rth (℃ / W) and the heat dissipation power is PD (W). At this time, the temperature of the PN junction is increased due to the heat loss of the current:\n△ T (° C) = Rth × PD.\nPN junction temperature is:\nTJ = TA + Rth × PD\nWhere TA is the ambient temperature. Due to the rise in junction temperature will make the probability of PN junction recombination decreased, the brightness of the light-emitting diodes will decline. At the same time, due to heat loss caused by the increase in temperature, light-emitting diode brightness will no longer continue to increase with the proportion of the current, that shows the hot saturation phenomenon. In addition, as the junction temperature rises, the peak wavelength of the light emission will drift to the long wavelength, about 0.2-0.3 nm / ° C. For the white LED obtained by mixing the YAG phosphor coated with the blue chip, Drift, will cause a mismatch with the phosphor excitation wavelength, thereby reducing the overall luminous efficiency of the white LED, and lead to white color temperature changes.\nFor power light-emitting diodes, the drive current is generally more than a few hundred milliamperes, PN junction current density is very large, so PN junction temperature is very obvious. For the packaging and application, how to reduce the thermal resistance of the product, so that the heat generated by the PN junction can be released as soon as possible, not only can improve the product saturation current, improve product luminous efficiency, but also improve product reliability and life The In order to reduce the thermal resistance of the product, the first choice of packaging materials is particularly important, including heat sink, adhesive, etc., the thermal resistance of each material is low, that requires good thermal conductivity. Second, the structural design should be reasonable, the thermal conductivity of the material between the continuous match, the material between the thermal connection is good, to avoid the heat generated in the heat pipe bottleneck to ensure that heat from the inner to the outer layer of distribution. At the same time, from the process to ensure that the heat in accordance with the pre-designed cooling channel in a timely manner out.","domain":"optical_engineering"}
{"url":"http://close-ups.co.uk/wordpress/","date":"2021-10-25T04:45:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587623.1/warc/CC-MAIN-20211025030510-20211025060510-00377.warc.gz","language_score":0.9394043684005737,"token_count":249,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__135927153","lang":"en","text":"The Fastcam MC2 is a high speed video system for production line troubleshooting or research. The small camera heads fit easily around the production line and can record video up to 2,000 fps at full resolution or up to 10,000fps at reduced resolution. The system has trigger and switch functions for precise video capture and fault finding. The Photron PFV software is intuitive and operators are quickly up to speed with its features. Continue reading\nThis 24W LED light source has variable light intensity and gives a stable white illumination. The light intensity compares well with 150 watt halogen units and with a life of 20,00 hours its running costs are much lower. There is no fan so the unit is quiet and has a small (145 x 90mm) footprint. Pictured here with twin swanneck light guides and focusing lenses the unit is ideal for stereo microscopy where the subject needs cool white light.\nSee our product video here\nThe VM10x video microscope has been manufactured by Close-Ups for several years and is established in numerous companies and amongst several different industries as an easy to use inspection system. There is a large zoom range enabling the inspection of larger components or the fine detail on small components. Continue reading","domain":"optical_engineering"}
{"url":"https://denadownload.com/qa/quick-answer-what-kind-of-light-is-most-like-sunlight.html","date":"2021-04-13T02:07:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038071212.27/warc/CC-MAIN-20210413000853-20210413030853-00317.warc.gz","language_score":0.914739727973938,"token_count":1717,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__130942983","lang":"en","text":"- Is the sun a light bulb?\n- What color is natural sunlight?\n- Are white LED lights good for plants?\n- Can plants get too much artificial light?\n- What bulb is closest to natural light?\n- Can I use an LED light for plants?\n- Which Colour lighting is the best for mimicking natural light?\n- What is a 100 watt LED equivalent to?\n- What kind of light source is the sun?\n- What are 5 sources of light?\n- How do you fake natural light?\n- Is Moon a natural source of light?\n- What is light energy for kids?\n- How many lumens is a 100 W light bulb?\n- Is a light bulb hotter than the sun?\n- What color LED light is best for plants?\n- What color is the hottest star?\n- Can LED lights mimic sunlight?\n- What is the only source of light in the universe?\n- What are 4 types of radiation from the sun?\n- What is a natural light source?\n- What are the two types of light?\n- Which color will give you the greatest contrast?\n- Which color temperature is best for eyes?\nIs the sun a light bulb?\nThe sun, a torch, and a light bulb all emit energy in the form of particles called photons.\nThe photons from the sun are a product of thermonuclear fusion.\nA torch uses a chemical reaction to burn.\nA light bulb converts electricity to photons..\nWhat color is natural sunlight?\nwhiteThe color of the sun is white. The sun emits all colors of the rainbow more or less evenly and in physics, we call this combination “white”. That is why we can see so many different colors in the natural world under the illumination of sunlight.\nAre white LED lights good for plants?\nWhite LED grow lights are good if you’re looking to illuminate your home or office as this efficiency loss is easily justified by being able to see comfortably, but for growing plants they are wasteful. Plants preferentially absorb red and blue light.\nCan plants get too much artificial light?\nMost houseplants do well with 12-16 hours of artificial fluorescent light each day. Too little light will result in elongated, spindly growth and too much light will cause a plant to wilt, color to fade, soil to become excessively dry and foliage to burn. Plants also require a rest period each day.\nWhat bulb is closest to natural light?\nHalogen light bulbsHalogen light bulbs give the closest approximation of natural daylight, also known as “white light”.\nCan I use an LED light for plants?\nGenerally, yes. But because LED technology is so customizable, every bulb is different and you want bulbs that produce the exact mix of red, blue and other wavelengths preferred by your plants. White light contains a great mix for plants, so white LED bulbs will work to grow.\nWhich Colour lighting is the best for mimicking natural light?\nCool white LEDs and most fluorescents are designed to mimic daylight (blue-rich light). Light from most LED products (light bulbs AND devices/screens) is intrinsically blue-rich since they are powered by blue LEDs.\nWhat is a 100 watt LED equivalent to?\nLED equivalents to traditional incandescent light bulbsIncandescent Light Bulb WattageLED Equivalent Wattage100 Watt10 Watt75 Watt7.5 Watt60 Watt6 Watt50 Watt5 Watt1 more row•Mar 9, 2018\nWhat kind of light source is the sun?\nIncandescent lightIncandescent light is the most common type of light it includes the sun, fires and light bulbs. Fires involve chemical reactions which release heat and gases, causing materials to reach high temperatures and eventually causes the gases and materials to incandescence.\nWhat are 5 sources of light?\nLight sources include the sun, light bulbs and stars. Reflectors (such as the moon, cat’s eyes, and mirrors) do not actually produce the light that comes from them….List of light sources1.1 Combustion. 1.1.1 Lamps.1.2 Other.1.3 Nuclear and high-energy particle.1.4 Celestial and atmospheric.\nHow do you fake natural light?\nAdd a fresh coat of glossy white to your walls, ceiling, trim, and floors (if possible) to help bounce the light you do have around the room, and invest in decor items with glossy or metallic finishes to give the impression you have more light in your home than you really do.\nIs Moon a natural source of light?\nThese different “faces” are called phases and they are the result of the way the Sun lights the Moon’s surface as the Moon orbits Earth. The Moon can only be seen as a result of the Sun’s light reflecting off it. It does not produce any light of its own.\nWhat is light energy for kids?\nLight energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun. Light contains photons which are minute packets of energy.\nHow many lumens is a 100 W light bulb?\n1600 lumensTo replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for less lumens; if you prefer brighter light, look for more lumens. Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens.\nIs a light bulb hotter than the sun?\nYep, the answer is a bolt of lightning, which can reach temperatures of roughly 30,000 kelvins (53,540 degrees Fahrenheit). The sun, on the other hand, is eclipsed in this case – its surface temperature is just 6,000 kelvins (10,340 degrees Fahrenheit).\nWhat color LED light is best for plants?\nPlants do best with a light that has a lot of red and blue and smaller amounts of green and yellow. White light is not important for plants – having the right amount of each wavelength is important.\nWhat color is the hottest star?\nBlue starsWhite stars are hotter than red and yellow. Blue stars are the hottest stars of all.\nCan LED lights mimic sunlight?\nBelieve it or not, LED lights have a lot in common with sunlight. LEDs can mimic the hue and intensity of natural sunlight and help to maintain the human body’s natural circadian rhythm. This is because LED components allow for finer adjustments of color, brightness and intensity.\nWhat is the only source of light in the universe?\nHot objects like stars emit a lot of visible light. Our local star, the Sun, emits most of its light in the visible part of the spectrum. Reflections of visible light waves are the source of the color we can see. Ultraviolet light is generated by very hot objects like stars.\nWhat are 4 types of radiation from the sun?\nSolar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.\nWhat is a natural light source?\nNatural light sources include the Sun and stars. Artificial light sources include lamp posts and televisions. Without light sources we could not see the world around us, however not every object we can see is a light source. Many objects simply reflect light from a light source.\nWhat are the two types of light?\nTypes of LightingFluorescent.Incandescent.Outdoor solar.Light-emitting diode (LED)\nWhich color will give you the greatest contrast?\nBlack and white create the highest contrast possible. Please visit our Color Contrast Analyzer page to see if the colors you want to use have enough contrast. Colors can contrast in hue, value and saturation, but there are many different types of contrasts that have been defined by color theorists throughout the years.\nWhich color temperature is best for eyes?\nDuring the daylight hours, it’s best to keep your monitor relatively cool with a default color temperature of 6,500K. At night, the color temperature should be warmer, and around 3,400K.","domain":"optical_engineering"}
{"url":"https://www.ideallight.com/","date":"2020-10-27T00:57:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107892710.59/warc/CC-MAIN-20201026234045-20201027024045-00452.warc.gz","language_score":0.9027484655380249,"token_count":116,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__78135557","lang":"en","text":"Non-Invasive Light Therapy\nIdeal Light is the latest advancement in light emitting microchip technology and is exceptionally effective on all body areas due to its unique pad design. The large, soft and flexible pads will contour to the shape of the human body, providing a direct contact of the light source to the skin; the optimum way to deliver photonic energy. The wavelengths of red and near-infrared are emitted by the pads of the Ideal Light system, combining the beneficial aspects of both frequencies to attain optimal results. No other system delivers and retains this energy better.","domain":"optical_engineering"}
{"url":"http://www.stasaphbusinesspark.org.uk/business/laser-micromachining-ltd/","date":"2018-02-19T19:35:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812788.42/warc/CC-MAIN-20180219191343-20180219211343-00440.warc.gz","language_score":0.8815975189208984,"token_count":145,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__262005359","lang":"en","text":"Laser Micromachining Ltd\nLaser Micromachining Ltd profile\nLaser Micromachining Ltd. (LML) supplies precision laser manufacturing services combining fast turnaround with high quality results in all materials. This offering allows complex product designs to be evaluated in a simple and efficient manner, enabling shorter development times and a cost-effective route to market. LML has extensive experience in micro-fabrication processes and has the widest range of precision laser micromachining tools in the UK within it’s state-of-the-art facilities. LML’s services range from providing one-off proof-of-concept parts through to small batch runs and high-volume manufacturing.","domain":"optical_engineering"}
{"url":"https://rh.gatech.edu/front-office/pv-cells-get-space-testing","date":"2022-12-05T07:41:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711013.11/warc/CC-MAIN-20221205064509-20221205094509-00479.warc.gz","language_score":0.908715009689331,"token_count":268,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__197048328","lang":"en","text":"A novel three-dimensional solar cell design developed at the Georgia Tech Research Institute (GTRI) will soon receive its first space testing aboard the International Space Station (ISS).\nAn experimental module containing 18 test cells was launched to the ISS in July and installed on the exterior of the station. In addition to testing the three-dimensional format, the module will also study a low-cost copper-zinc-tin-sulfide (CZTS) solar cell formulation.\nBuilt by coating miniature carbon nanotube “towers” with a photo-absorber that captures sunlight from all angles, the 3-D cells could boost the amount of power obtained from the small surface areas many spacecraft have.\n“We want to see both the light-trapping performance of our 3-D solar cells and how they are going to respond to the harshness of space,” said Jud Ready, a GTRI principal research engineer and an adjunct professor in Georgia Tech’s School of Materials Science and Engineering. — Rick Robinson\nGTRI researcher Stephan Turano shows an optical microscope image of one of the carbon nanotube array patterns on a solar cell that will be tested on the International Space Station. The actual cell is visible on microscope stage under the objective. Photo: Gary Meek","domain":"optical_engineering"}
{"url":"https://www.modena-aec.co.za/whats-new-in-faro-scene-2018/","date":"2020-10-29T02:07:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107902683.56/warc/CC-MAIN-20201029010437-20201029040437-00428.warc.gz","language_score":0.9061928391456604,"token_count":712,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__148912588","lang":"en","text":"The FocusS Series consists of three laser scanners with different ranges: Focus S 350 for long-range measurements up to 350m, FocusS 150 for mid-range measurements up to 150m and the newest member FocusS 70, perfectly suitable for short-term measurements up to 70m.\nWith their sealed design, all S Laser Scanner models are certified via the industry standard Ingress Protection (IP) Rating, and classified in Class 54 for environmental protection. The devices are built to safeguard against intrusions such as dirt, dust, fog and rain as well as other outdoor elements which typically occur in challenging scanning conditions. An extended temperature range allows scanning in extreme environments, like desserts. An addition the laser scanners offer a future-proof interface to connect additional accessories to the scanner and provide a specific on-site compensation routine.\nFor scan data processing users have unrestricted freedom of choice to leverage the software tools most beneficial to their own workflow. The point cloud data captured with FARO Laser Scanners can be used with various software packages including FARO SCENE or 3rd party software such as Autodesk ReCap.\nAll scanner types offer the possibility to perform scanning even in bright sunlight. Remote scanning as well as almost limitless scan data sharing via SCENE Webshare Cloud make the laser scanning solution truly mobile.\nEach of the following headings/industries address:\nWith SCENE software you can scan three dimensional, complex forms by creating point cloud data. SCENE integrates seamlessly with FARO® Laser Scanner Focus and FARO® Scanner Freestyle product lines. SCENE works best when you use the latest software version. Upgrade releases offer new ease-of-use features that help you get your job done quicker and easier, as well as bug fixes. With each new version, you increase your work efficiency and get more done with less effort. This article shows you how to download and install the software.\nImportant FARO links\nFARO FocusS 350\nThe FARO FocusS 350 is specially designed for outdoor applications due to its small size, extra light weight and extended scanning range. The FocusS 350 provides scanning results even in challenging environments, narrow job-sites, dusty or humid areas, in rain or direct sunlight applications. An on-site compensation tool allows data quality optimization on-site. Integrated GPS & GLONASS receiver enable easy positioning. HDR imaging and HD photo resolution ensure true-to-detail scan results with high data quality.\nFARO FocusM 70\nThe ultra-portable FocusM 70 enables fast, straight-forward and accurate measurements of construction sites, small-scale facades, complex structures, production and supply facilities and crash and crime scenes. The 3D scan data can easily be imported into all commonly used software solutions for architecture and construction, forensics and accident reconstruction or industrial manufacturing\nThe laser scanner transmits a laser beam, which is reflected by an object back to the scanner. The distance is measured with millimetre precision by means of the phase difference between the transmitted and received beams.\nThe mirror directs the laser beam through the space in a vertical direction. The angle is recorded at the same time as the distance measurement.\nThe laser scanner turns horizontally through 360° while scanning. The horizontal angle is recorded at the same time as the distance measurement.\nDefining the 3D coordinates\nDistance, vertical angle and horizontal angle result in polar coordinate (d, α, β), which are converted into cartesian coordinates (x, y, z).","domain":"optical_engineering"}
{"url":"https://kit-neuland.de/en/projects/counteracting-climate-change-with-tandem-solar-cells/","date":"2024-03-01T04:36:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474948.91/warc/CC-MAIN-20240301030138-20240301060138-00816.warc.gz","language_score":0.9179299473762512,"token_count":1137,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__154845213","lang":"en","text":"- Climate, Environment & Health\nCOUNTERACTING CLIMATE CHANGE WITH TANDEM SOLAR CELLS\nAt first glance, a tandem may seem bulky and unwieldy. At second glance, it offers a decisive advantage over an ordinary bicycle: it runs better together! Due to the double occupation, more power is available to significantly increase the drive of the bike and to cover further distances.\nKIT researchers are taking advantage of the fundamental \"tandem concept\" to develop next-generation solar cells. Established silicon solar cells have undergone decades of progress in their technological development and are now reaching their limits in terms of conversion efficiency from light to electrical energy. \"The optimization potential will be exhausted in the near future. Every additional percent of efficiency means an enormous development effort,\" explains Junior Prof. Ulrich W. Paetzold, tenure-track professor and head of the Next Generation Photovoltaics working group at KIT. To escape this impasse, new and more efficient concepts are needed. Solar cells based on perovskite semiconductors are of particular interest to the scientific community, as they have shown an incredibly rapid increase in efficiency over the past ten years.\nPerovskite solar cells are particularly promising in combination with another solar cell material, such as crystalline silicon or established thin-film semiconductors like CIGS (copper, indium, gallium, selenide) in form of a tandem solar cell. This is due to the fact that perovskites use the blue-purple high-energy light in the solar spectrum more efficiently than other solar cells, which primarily convert red and infrared light efficiently into electrical energy. Thus, the use of multiple solar cells with different efficient absorption ranges provides the higher efficiencies than for individual solar cells.\nSimply put, the tandem solar cell can be thought of as a silicon+ solar cell (or CIGS+ solar cell). The use of silicon or CIGS in the tandem solar cell is attractive because the wheel does not have to be reinvented and an established production technology can be used as the basis for the tandem solar cell. Enthusiasm for this concept has already spread from the scientific community to the German Photovoltaic Industry. Even though there are still some challenges to overcome, such as the insufficient long-term stability, numerous companies (machine builders, module manufacturers, material suppliers) are already looking forward tpo the technology, for example the company Oxford Photovoltaik, which is currently setting up an initial pilot line in Brandenburg.\nThe bottleneck in the development of the tandem solar cell currently relates primarily to the perovskite solar cell on the front side. \"We have developed a tandem prototype that we are currently using to improve the efficiency of the silicon solar cell from just over 20 percent to 27.8 percent. This also provides us with evidence that the technology can already outperform the best silicon solar cell ever measured. The tandem technology works,\" says Junior Prof. Paetzold, describing the current status. His team is working at all levels to further advance the tandem technology and optimize the yield under real light conditions. An important research aspect is the upscaling of the perovskite solar cell from the small laboratory scale to application-relevant areas for solar modules. A particular challenge for the upscaling is the uniform coating of all solar cell layers on the substrate. \"Homogeneous deposition of solar cell layers by rotational coating works perfect in the lab on small areas. Industrially, it is not applicable because the method leads to strong inhomogeneity in the deposition already on areas of a few square centimeters,\" explains Ph. D. Tobias Abzieher, a scientist in the field of vacuum deposition of perovskite solar cells and member of the research team. His approach to solving the problem: vapor deposition of the individual solar cell layers in a vacuum. \"Vapor deposition is a standard approach in the industry because of its outstanding homogeneity and it also allows very good control over layer thickness and material composition of the layers involved. The fact that we have developed a fully evaporated perovskite solar module is unique worldwide and sets our work apart from other research,\" Ph. D. Abzieher proudly reports.\nThe development of cost-effective and scalable manufacturing processes, such as vacuum deposition, but also the development of innovative deposition processes from the liquid phase is fundamental to the Karlsruhe research. To enable tandem technology for commercial application, the team collaborates with a variety of national, european and international companies. The various facets of the research are strongly supported by the Helmholtz Association, the German Federal Ministry for Economic Affairs and Energy, the German Federal Ministry of Education and Research and the European Research Framework Program.\nThe tremendous progress of perovskite research is already catapulting the semiconductor material to the forefront of hopes for high-performance, low-cost solar cells of tomorrow. It is not without reason that perovskite photovoltaics is one of the most rapidly developing research fields worldwide. The researchers of KIT expect the tandem technology to be available on the market already by the middle of the current decade.\n\"I expect perovskite silicon tandem solar cells to be used in large-scale photovoltaic power plants in the future. In the laboratory, the technology's efficiency is expected to reach 33 percent in the next few years, far surpassing the silicon photovoltaics established on the market right now.\"\nPictures: Markus Breig / KIT","domain":"optical_engineering"}
{"url":"http://apple101.com.my/shop/index.php?route=product/product&product_id=501","date":"2017-06-26T02:02:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128320666.34/warc/CC-MAIN-20170626013946-20170626033946-00138.warc.gz","language_score":0.8214431405067444,"token_count":229,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__106355081","lang":"en","text":"Product and Specifications\nWith built-in wi-fi, images and HD videos can be shared instantly on social media. Using the Canon Camera Window app, users can directly connect the camera to iOS and Andriod devices so images can be shared virtually anywhere and even send for wireless printing with any compatible printers.\nF2.0 lens for dramatic depth-of-field images\nNewly engineered specifically for the camera, the 24mm Wide-Angle 5x Optical Zoom lens with a focal length of 5.2 - 26.0mm achieves f/2.0 - f/5.9, giving the user exceptional versatility and allowing you to create captivating portraits with beautiful, soft background blur, even in low light.\nFull range of shooting and recording modes, includes Live View Control\nCapture the images as how you envision it using the full Manual mode or Live Control. The camera gives you outstanding flexibility and complete creative control.\nCanon Powershot S200\n- Product Code: CANONS200\n- Availability: In Stock\n- MYR 895.28\n- Ex Tax: MYR 377.35","domain":"optical_engineering"}
{"url":"https://thelawlers.com/Blognosticator/?p=1847","date":"2023-05-31T11:57:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646457.49/warc/CC-MAIN-20230531090221-20230531120221-00348.warc.gz","language_score":0.9580044746398926,"token_count":1430,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__171283468","lang":"en","text":"On September 26, my wife and I joined a group from the local astronomical society on a field trip to Mount Wilson, just east of Pasadena, California, where we spent the entire night observing objects in the sky. My wife and I didn’t end up spending the entire night in the observatory because I got too cold, and I had to retreat to our vehicle where I was slightly less cold. But, the others – intrepid astronomers all – spent the night there, and looked periodically at stars and binary stars and planetary clusters, and nebulae, and even a galaxy or two. It was very exciting stuff.\nThis is the 100-inch Hooker telescope on Mount Wilson. Between the years 1917 and 1947, this telescope was the largest in the world. It was superseded by the Mt. Palomar telescope in San Diego County, California. The giant mirror in the telescope is just above the cluster of people standing under the instrument.\nI took lots of camera equipment because I am always interested in taking star photos, and photos of people watching stars. I like the telescopes and the observatory as much as I like looking at distant stellar objects. I had planned to do a time-lapse movie of the observatory (didn’t work), and many interior photos of the telescope with one or more of my very wide angle lenses. The most recent acquisition on that front is a Canon 8-15mm fisheye zoom lens that I bought just a few days before the observatory visit. With this lens you can point the camera at the horizon and get your own toes in the photo (I admit this isn’t something one normally wants in his photos). But it did allow me to take some grand images of the telescope we were using.\nThis is the interior of the 60-inch telescope dome with the telescope pointed out into space. The 60-inch instrument is used exclusively for public all-night astronomical sessions by trained docents who operate the device and explain the sights to visitors.\nThe telescope in question is the medium size 60-inch reflector that was built at the beginning of the 20th century by Mr. George Ellery Hale (the Hale-Bopp Comet is named after him). The funds came from Andrew Carnegie who entrusted a considerable sum to the young astronomer who wanted to study the sun and the stars. Hale did not disappoint. With the funds he built the largest solar telescope in history at the top of Mount Wilson, and then the 60-inch reflector telescope on the same peak. For years it was the largest optical telescope in the world. Several years later John D. Hooker endowed the construction of Mount Wilson’s 100-inch telescope, which took the honor of being the largest until it, too, was supplanted by a Hale-built telescope in San Diego County, California, atop Mount Palomar. That telescope, a 200-inch design, was unchallenged for many years until the bigger telescopes on Mauna Kea were built.\nThis is the 180-degree view of the Hooker 100-inch telescope. The dome was closed when the group toured the facility.\nWe started the evening with a tour of the facility, walking up to the base of the 150-foot solar telescope, around the 60-inch telescope, then we got an interior tour of the 100-inch optical telescope on Mount Wilson. Also on the mountain is a modern optical telescope array called CHARA, which is owned and operated by the Georgia State University. CHARA is made up of six separate 40-inch reflector telescopes that each feed their optical product down light tubes that converge in an amazing building that adjusts the timing of those optical images by bouncing them around on long tables with stationary mirrors, then focusing the converged result onto a digital sensor in a digital astronomical device. The effect of these six telescopes looking at an object in the universe is the equivalent of having a single mirror that is over 1000 feet in diameter.\nIn the foreground is one of the six CHARA telescopes owned and operated by Georgia State University. These 40-inch optical telescopes are used as an array to do deep-space astronomy. Immediately behind the CHARA unit is the 60-inch telescope enclosure, and behind that is the vertical solar telescope. To the left of the 60-inch building is another of the six CHARA telescopes.\nHere is what the Mount Wilson web site says about CHARA:\nThe Center for High Angular Resolution Astronomy (CHARA) of Georgia State University has built the highest resolution interferometric telescope array in the world for the study of objects in visible and infrared wavelengths. With six 40-inch telescopes at distances of up to 330-meters apart (almost 1/4 mile), the CHARA Array can detect much finer detail on distant objects than ever before. Fully operational since 2005, the CHARA array is being used to measure sizes, shapes, temperatures, distances, masses and luminosities of stars. In 2007, it produced the first image ever made of the surface of a sun-like star. More recently, CHARA successfully imaged the once-every-27-years eclipse of the previously mysterious binary star system Epsilon Aurigae as well as the famous eclipsing binary star Algol (beta Persei).\nWhile were were on the mountain, and our astronomer guide was pointing our celestial objects, we were treated to the same views that Albert Einstein once made in the same structures. His image is found in photos around the observatory and adjacent buildings. On the first floor of the 60-inch telescope building is a locker with Edwin Hubble’s name on it. The locker stands next to others with the names of George E. Hale and other storied astronomers who worked on the telescopes at Mount Wilson.\nThis is the 150-foot solar telescope on Mount Wilson. It was used until recently to measure sunspots on our sun. It is still operated by volunteers, but has lost its funding from its owners, the University of California, Los Angeles.\nThe 60-inch telescope is now used exclusively for public tours and all-night astronomical sessions. Groups like ours can reserve the instrument, and gather for the night with the assistance of a professional astronomer who will operate the huge telescope, and allow each person to climb the stairs and look through the eyepiece at distant celestial objects. It is apparently the only telescope of its size in the world devoted exclusively to public use. The 100-inch Hooker telescope is still used for science, and can be reserved for experimentation by anyone in the scientific community for astronomical studies.\nEven though I got too cold and chickened-out in the middle of the night, I still enjoyed the experience, and treasure the images that I took of the telescope being used to see distant galaxies and stars. Next time I will take warmer clothes and be better prepared for the temperature extremes.\nThanks, Brian for allowing me to share your look into the heavens. Life is good, huh? Dick Gwyn","domain":"optical_engineering"}
{"url":"https://colourhouse.se/en/lighting-indicator-sticker-d50","date":"2021-05-11T06:50:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991904.6/warc/CC-MAIN-20210511060441-20210511090441-00131.warc.gz","language_score":0.9055202007293701,"token_count":148,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__192391980","lang":"en","text":"The quality of light plays a critical role in the appearance of colours, and making colour choices under the wrong lighting may lead to costly and time consuming mistakes. Pantone Lightning Indicator provides you with indications on whether your light conditions are optimized for precise visual reading.\nTwo light sensitive patches react to your lighting and the nuances will change depending on the light temperature. In decent lighting the patches will appear to match. Depending on how close your lighting is to optimal, the contrast between the two patches will indicate an increase or decrease in contrast.\nPantone Lighting Indicator Stickers have a peel-off adhesive back that lets them attach to and travel with your color proofs, ensuring that everyone in your production chain will make accurate color decisions.","domain":"optical_engineering"}
{"url":"https://www.aurex.com.tw/product.php?act=view&id=116","date":"2021-08-05T17:01:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046156141.29/warc/CC-MAIN-20210805161906-20210805191906-00313.warc.gz","language_score":0.687944233417511,"token_count":120,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__38271943","lang":"en","text":"- 10A twilight switch (photocell), built-in adjustable timer and lux for lighting control, IP55.\n- Rated voltage: 220V~240V AC, 50Hz\n- 10A for incandescent light\n- 5A for fluorescent light\n- Lux: Adjustable from about 5 Lux ~300 Lux\n- Light on delay: About 60 sec.\n- (1) Adjustable from about 1 hr to 8 hrs\n- (2) Dusk to Dawn\n- Operating temperature: -30°C to 50°C\n- Environmental protection: IP55 RATED","domain":"optical_engineering"}
{"url":"https://www.hmwoutdoors.com/products/headlamp","date":"2023-09-22T19:37:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506421.14/warc/CC-MAIN-20230922170343-20230922200343-00321.warc.gz","language_score":0.8953731060028076,"token_count":323,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__51271475","lang":"en","text":"Meet the headlight that can do it all. It's superbright, lightweight, , dimmable and delivers multiple modes for effective illumination while hiking, climbing, skiing or embarking on your next adventure.\nOffering convenient power options, this sleek, low-profile lamp lights your path with up to 100 lumens.\n- Equipped with 1 high-power LED and 2 red LEDs for amazing brightness and total lighting versatility\n- High-quality lens tunes the light output and shape of the beam to make the Spot ideal for running, skiing, climbing, hiking, paddling and route finding in the dark\n- Use the high-power LED for maximum light output of 100 lumens; the white and red LEDs use less battery power and are ideal for use around camp\n- Innovative dimmer switch lets you choose the light output needed with a simple tap of the finger on the touch-sensitive housing; output adjusts from low lumens up to 100 lumens\n- Red LEDs help preserve your night vision\n- Strobe settings can be used to signal in the mountains or increase your chance of being seen while walking or biking around town\n- 3 AAA batteries provide up to 50 hrs. of use with the high-output LED on high and 200 hrs. with it on low\n- Streamlined design sets the beam at an efficient illumination angle; ratcheting swivel head aims light where you need it\n- IPX4 water-resistance protects against splashing or sprayed water from any angle\n- Fits securely around your head with an adjustable elastic band that won't pull hair","domain":"optical_engineering"}
{"url":"https://e-zikmund.cz/en_kamerove_hlavy.html","date":"2021-01-26T03:26:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704795033.65/warc/CC-MAIN-20210126011645-20210126041645-00724.warc.gz","language_score":0.7978734374046326,"token_count":214,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__40665573","lang":"en","text":"- rotation through 270° / 360° - continuous regulation of rotation speed - return to default position - indicator of viewed direction in the pipe - connector for connecting to crawlers - head pressurized by the crawler - LED lights for pipes of up to diameter DN800\n- for measuring the diameter and ovality of DN125-DN280 pipes - ready to use with lasers for DN220-DN800 pipes\n- 33Khz transmitter for locating function\n- Extender for laser-based measurement - Laser for measuring DN220 – DN480 pipes - Laser for measuring DN450 – DN800 pipes - 33Khz transmitter for locating function - laser for measuring the widths of cracks\nA HEAD APPLICABLE FOR:\n- push cameras for DN70 – DN400 pipes - all crawlers (some require adapters) - a satellite camera (no adapter required) Easy to swap out, due to use of waterproof nuts on the head.\n- diameter 62mm - automatic self-levelling - 8 SuperHiPower LED lights - automatic return to the default position","domain":"optical_engineering"}
{"url":"https://serverstips.com/tools-home-improvement/stasun-led-flood-light-150w-13500lm-security-9225","date":"2020-02-22T07:36:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145654.0/warc/CC-MAIN-20200222054424-20200222084424-00070.warc.gz","language_score":0.7756170630455017,"token_count":1286,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__3292004","lang":"en","text":"STASUN LED Flood Light, 150W 13500lm Security Lights with 330°Wide Lighting Area, OSRAM LED Chips, 6000K, Adjustable Heads, IP66 Waterproof Outdoor Floodlight for Yard, Court, Street, Parking Lot\nPossess the Power of Three Security Lights in One\nSTASUN 150W LED Security Light features two adjustable heads for customizable coverage. Get more light in more areas instantly.\n- Each head provides 4500 lumens of light for a combined 13500 lumen high output.\n- Adjustable heads allow for customizable and wider light coverage.\n- Extra bright OSRAM LED chips produce even and well-balance lighting without glare, ghosting and uneven spots.\n-IP66 Weatherproof for Outdoor Applications such as Backyards, Gardens, Warehouses, Factories, Commercial and Industrial Areas.\nVoltage: AC100-120V; 50/60Hz\nCertifications: FCC & CE & ROHS Qualified\nPower Source: 11 inch long Corded-electric (NO plug PROVIDED)\nMaterial: Die-cast Aluminum + Optics PC Lens + OSRAM LED Chips\nColor Temperature: 6000K\nWorking Temperature: -30℃ to 50℃ (-22℉ to 122℉)\nProduct Weight: 8.09 lb\n1 x 150W LED Flood Light\n1 x Accessories (4pcs screws, 2pcs expansion screws,1pcs Allen wrench)\n1 x User Manual\n- 📢【OSRAM LED Chips】With 180 OSRAM LEDs, this 150w triple head LED Flood Light produces up to 13500lm high brightness(900W Incandescent Equivalent) and saves 88% on your electricity bill of lighting. It provides not only shadow-free and anti-glare lighting but extra safety to your home.\n- 📢【Vertical and Horizontal Light Adjustment Design】Customize your bright coverage area with STASUN outdoor security lights, which can pivot 330 degrees side to side and U shape bracket pivot 180 degrees up and down, This security light can be installed flexibly to light up a large and dark areas without disturbing your neighbors.\n- 📢【Save on Maintenance】Robust die-cast aluminum housing and shock-resistant PC lens ensure excellent heat dissipation and long-lasting performance. And the floodlight is designed with a thickened fin-type heat sink, which means it acts like a radiator to dissipate heat.\n- 📢【Release your worries】The lifespan(50,000 hours) of this floodlight is ten times that of the traditional incandescent light. IP66 protection rating means our floodlight is perfect for outdoor locations, like walkways, yards, patios, parking areas, stadiums, driveways, etc.\n- 📢【PREMIUM CUSTOMER SERVICE】We 100% stand behind our STASUN LED security lights and offer a worry-free, 24-month warranty and a 7*24 friendly customer service. Please contact us if any issue arises.\nCustomer Reviews4.0 out of 5 stars\nBy 176 Customers\nProduct Information- Price: (Check on Amazon)\n- Manufacturer: STASUN\n- Brand: STASUN\n- Size: 150W\n- Color: 6000k\n- Sales Rank: #63349\n- Product Group: Lighting\n- Total New: 1\n- Availability: Usually ships in 24 hours\n- Availability Type: now\n- Technical Details\n- Add To Baby Registry\n- Add To Wedding Registry\n- Add To Wishlist\n- Tell A Friend\n- All Customer Reviews\n- All Offers\n- - LED Flood Light, STASUN 150W Super Bright LED Security Lights Outdoor with Wider Lighting Area, 13500lm, 6000K Daylight, Built with Cree LED Chips, Waterproof, Great for Yard Garage Parking Lot\n- - LED Flood Light, STASUN 150W 13500lm Dusk to Dawn Outdoor Lighting with Wide Lighting Area (Photocell Included), 6000K, OSRAM LED Chips, IP66 Waterproof Security Lights for Yard, Street, Parking Lot\n- - LED Flood Light Outdoor, STASUN 150W 13500lm LED Security Lights with Wider Lighting Area, 3000K Warm White, Built with CREE LED Chips, Waterproof, Great for Yard Street Parking Lot\n- - 11000mAh Solar Lights Outdoor Wireless Motion Sensor Remote Control Led Security Flood Light with Larger Solar Panel 110pcs LEDs Big Battery & 3 Modes for Yard Garage Garden Park Farm\n- - Solar Lights,URPOWER 20 LED Outdoor Solar Motion Sensor Lights ,Solar Powered Wireless Waterproof Exterior Security Wall Light for Patio,Deck,Yard,Garden,Path,Home,Driveway,Stairs,NO DIM MODE(4Pack)\n- - LOHAS LED Bulb 100-150W Equivalent(UL Listed), LED Light Bulbs Daylight 5000k, White A19 Bulb 17W, E26 Edison Base LED Lights, LED Home Lighting Lamps, Non-Dimmable(4 Pack)\n- - 100W Outdoor Led Solar Flood Light, 180 LEDs 5100 LM High Bright with Remote Control, IP67 Waterproof Security Lighting for Yard, Garden, Gutter, Swimming Pool, Pathway, Basketball Court, Arena\n- - Solar Flood Lights Led Lights Remote Solar Lights Dusk to Dawn Solar Security Light with 6W 800 LM Dual 42 LEDs IP65 Waterproof Outdoor Solar Lights for Fence,Garden,Pool,Barn,Lawn,Flag Pole\n- - YQL 100W Outdoor LED Solar Street Security Flood Light IP67 Waterproof White 6500K 208 LEDs Auto On/Off Dusk to Dawn with Remote and Multi-Functional Bracket for Exterior Roads Yard Garden Pathway\n- - 300W Solar Street Lights Outdoor Lamp, 480 LEDs 12000 Lumens with Remote Control，Light Control, Dusk to Dawn Security Led Flood Light for Yard, Garden, Street, Basketball Court\n- - Solar Street Light Outdoor, 200W LED Flood Lights Lamp with Remote Control Timing High Brightness Dusk to Dawn Security Lighting for Yard, Garden, Gutter, Pathway, Basketball Court","domain":"optical_engineering"}
{"url":"http://www.gogogear.com.au/carson-trek-mini-compact-binoculars/","date":"2017-12-11T16:59:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948513784.2/warc/CC-MAIN-20171211164220-20171211184220-00000.warc.gz","language_score":0.744551956653595,"token_count":220,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__118804352","lang":"en","text":"The Carson Trek 8x21mm Mini-Compact Binoculars TK-821 are value-packed binoculars with fully multi-coated lenses that reduce internal glare, reflection, and assure crisp, bright images. These Carson binoculars have a center focus knob with an imageindependent right diopter adjustment for maximum focusing flexibility. The lens barrels on these binoculars by Carson also fold in to create an extremely compact design.\nObjective Lens: 21mm\nPrism Type: BK-7\nLens Coating: Fully Coated\nField of View: 365 ft. @1000 yards\nEye Relief: 10.5mm\nMinimum Focus: 15ft.\nDimensions: 3 3/4 x 5 1/2 x 1 1/2 inches\nFeatures of Carson Trek 8x21 Compact Binoculars:\nMini and compact\nFully multi-coated lenses\nCenter focus knob with an independent right diopter adjustment\nLens barrels fold in\nCarson Trek 8x21mm Mini-Compact Binoculars TK-821","domain":"optical_engineering"}
{"url":"http://www.davidstjernholm.com/index.php/project/the-beat-effect/","date":"2020-01-27T16:19:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251700988.64/warc/CC-MAIN-20200127143516-20200127173516-00412.warc.gz","language_score":0.9376459121704102,"token_count":183,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__82822341","lang":"en","text":"The Beat Effect, 2013\nThe project explores a hidden side of light created by fluorescent light, which is not normally perceivable for the naked eye.\nThe human eye and its brain interface, the human visual system, can process 10 to 12 separate images per second. The visual information that exceeds this helps to smooth out and join images, color and movements. This is known from the 24 fps (frames per second) in modern movie standards. One of the most common light sources in today’s world comes from fluorescent light tubes which operates under a high and non visible frequency. It means that what we see as a constant light actually consists of a continuous flicker including shift in the color temperature of light.\nUsing fast exposure, a series of photographs have been produces, reveling these patterns and shift in color. The photographs have been remounted back on to the light tubes from which they originated.","domain":"optical_engineering"}
{"url":"https://www.rgclinics.co.uk/treatments/ipl-laser-treatments/pigmentation-thread-veins/","date":"2022-08-13T05:38:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571909.51/warc/CC-MAIN-20220813051311-20220813081311-00507.warc.gz","language_score":0.8932475447654724,"token_count":136,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__35483646","lang":"en","text":"Phaser EPL is the result of more than 20 years experience in the medical laser industry and a fresh innovation from Chromogenex Technologies Ltd.\nPhaser EPL is an Intense Pulsed Light system utilising its own Smartlite Dual Phase Technology. It sets a new standard in IPL technology developed exclusively for the Phaser range of products.\nSmartlite produces high levels of light energy that can be used effectively for the treatment of pigmentation and thread veins.\nThis unique technology uses a combination of enclosed waveguide and a special reflecting cavity at the rear of the flash lamp source which increases transmission of light energy into tissue significantly compared to a standard IPL.","domain":"optical_engineering"}
{"url":"https://www.shopmaman.com/en/product/adjustable-vision-goggles/","date":"2022-01-25T05:32:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304760.30/warc/CC-MAIN-20220125035839-20220125065839-00481.warc.gz","language_score":0.7884434461593628,"token_count":164,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__218799747","lang":"en","text":"You don’t need to make an appointment with an ophthalmologist when you can easily correct your vision with these adjustable glasses.\nWhether you’re short-sighted or hypermetropic, you simply need to adjust the dials to have a clear view of distance or reading.\nThese glasses are an affordable replacement pair for lost contact lenses and broken eyeglasses.\nEach lens can be adjusted individually to enjoy clear vision.\nAdjustable focus: -6.00 to ‘3.00\nColor: black and light\nGoal height: 35mm\nLens width: 51mm\nBridge: 16mm / 0.63in\nLeg height: 126mm\nQuantity: 1 Pc","domain":"optical_engineering"}
{"url":"https://www.rf-shielded.com/sale-15360912-hvac-systems-100db-ss304-emi-honeycomb-vents-ventilation-emi-filter-mri-room.html","date":"2023-09-24T17:35:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506658.2/warc/CC-MAIN-20230924155422-20230924185422-00486.warc.gz","language_score":0.7864794135093689,"token_count":539,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__71205058","lang":"en","text":"AnasBrass honeycomb vent Looks Very Nice\nSatheeshMRI/RF doors are shining with handles, Thank you My friend.\nHVAC Systems 100dB SS304 Emi Honeycomb Vents Ventilation EMI Filter MRI Room\nContact me for free samples and coupons.\nWechat: 0086 18588475571\nIf you have any concern, we provide 24-hour online help.x\n|Material||304,316 Stainless Steel,Brass,Steel||Application||MRI EMC RF Room,Electrical|\n|Shielding Effectiveness||14KHz-40GHz Meet 100dB||Type||Ventilation,HVAC Systems,Air Conditioning,MRI Room Shielding Installation|\n|Size||Customized Inter Diameter 63mm||Keyword||Processing Performance|\n100dB emi honeycomb vents,\nss304 emi honeycomb vents,\nHVAC Systems honeycomb emi filter\nHoneycomb Waveguide Air Vents Waveguide Filter Cable Shielding Infrared Transmitters\nIt is mainly used to transmit ultra-high frequency electromagnetic waves,\naccording to which the pulse signal can be transmitted to the destination with a small loss.\nThe network cable of the electromagnetic shielding machine room is generally converted into\nan optical signal from the fiber waveguide,\nso the fiber waveguide plays a very key role in the weak current wiring of the shielding machine room.\nThe waveguide is a hollow metal catheter with a very smooth inner wall or a tube coated with metal.\nThe waveguide is used to transmit ultra-high frequency electromagnetic waves.\nThe common shape of the cross-section is rectangular and round.\nThe inner diameter of the waveguide varies with the wavelength of the signal being transmitted.\n|Shielded brass waveguide filter standard size|\n|Size||Inside size 63mm outside size 74.5mm length 300mm/other size can be provided too such as optic fiber waveguide|\nThe honeycomb filter and Waveguide product can be well used in MRI RF Room, EMC EMI Room installation.\n1. Can we get a product sample?\nYes, we can offer a sample to you.\n2. What is the delivery time?\nWithin 5-8 working days after payment.\n3. What is packing?\nIt is packed with a wooden case.","domain":"optical_engineering"}
{"url":"https://promoleaf.com/products/3-in-1-mini-laser-pointer-pen-lsr02-sj","date":"2022-10-07T21:48:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030338280.51/warc/CC-MAIN-20221007210452-20221008000452-00469.warc.gz","language_score":0.7294241786003113,"token_count":211,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__10438925","lang":"en","text":"* LED + Laser Pointer + UV LED Flashlight Keychain.\n* 1 White LED, 1 Laser Beam, 1 Ultra Violet UV LED.\n* Cash-Check Function.\n* 2 buttons to control the Laser Beam and LEDs.\n* LED life-time: 10000 hours.\n* Mini and light weight, great for emergency.\n* Aluminum body and durable.\n* With clip. You can use it as keychain or clip it at your backpack.\nOutput Power: Max 5mw\nOutput Wavelength: 650nm\nPowered supply: 3 x LR44 Cell Button Battery\n*CAUTION: Laser light, Avoid direct eye exposure. Keep out of reach of small children","domain":"optical_engineering"}
{"url":"https://swimhome.es/gb/led-pool-floodlights-surface/rgb-4-wire-stainless-steel-led-swimming-pool-spotlight-4003.html","date":"2023-12-07T03:08:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100632.0/warc/CC-MAIN-20231207022257-20231207052257-00859.warc.gz","language_score":0.8426851034164429,"token_count":157,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__218882135","lang":"en","text":"Discover the versatility of the 28CM Ø 35W 4-Wire RGB LED Spotlight, a superior choice for both indoor and outdoor environments:\n- Advanced RGB lighting, with 4 wires for a full range of dynamic colours.\n- Exceptional durability with high quality stainless steel, ideal for harsh outdoor conditions.\n- Powerful and efficient lighting, highlighting spaces with 35 watts of power.\n- Full control with an external controller (not included), allowing complete customisation.\n- Easy installation with accessories included, adaptable to different surfaces.\n- Energy efficient for sustained electricity savings.\nThe 28CM Ø 35W RGB 4-Wire LED Floodlight combines functionality with aesthetics, offering a slim and very powerful model, perfect for those looking for quality and performance in pool lighting.","domain":"optical_engineering"}
{"url":"http://ijmpe.iraj.in/abstract.php?paper_id=7023","date":"2023-09-30T10:42:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510671.0/warc/CC-MAIN-20230930082033-20230930112033-00198.warc.gz","language_score":0.8627406358718872,"token_count":344,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__156314406","lang":"en","text":"Synthesis, Structural and Optical Study of ZNO Thin Films Prepared by Photo-Assisted Sol-Gel Method\nZnO thin films were prepared by UV photo-assisted sol-gel method using zinc acetate (Zn(CH 3 COO) 2 .2H 2 O) as\nstarting material , 2-methoxyethanol as solvent and monoethanolamine (MEA) as stabilizer. Thin films are deposited onto\nglass substrates using dip-coating technique. After deposition and drying at 100°C, the ZnO thin films have been grown\nusing UV irradiation. The structural characterization of films has been performed using X-ray diffraction which shows the\nformation and the progressive growth along direction  of ZnO crystallites with hexagonal structure. The FTIR spectrum\nreveals the presence of a peak situated at 418 cm -1 corresponding to the Zn-O stretching which confirms the ZnO formation.\nThe optical absorption of the ZnO thin films shows a shift of the gap to higher energies. The shoulder observed on the\noptical absorption spectrum indicates a large size dispersion of ZnO crystallites. The photoluminescence spectrum at room\ntemperature reveals an intense and a wide band in the visible region from 400 to 800nm. The photoluminescence emission is\nformed of six bands which can be associated with various defects in ZnO crystallites.\nKeywords : ZnO, Photo-assisted sol-gel method, XRD, IR spectroscopy, UV-Visible absorption, Photoluminescence.","domain":"optical_engineering"}
{"url":"https://www.yosaki.com/dewalt-dw088k-self-leveling-cross-line-laser-review/","date":"2019-08-21T04:36:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027315809.69/warc/CC-MAIN-20190821043107-20190821065107-00111.warc.gz","language_score":0.9494993686676025,"token_count":1215,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__125526766","lang":"en","text":"DEWALT DW088K Self-Leveling Cross Line Laser Review\nThe DEWALT DW088K Self-Leveling Cross Line Laser is a very reliable and productive laser suitable for commercial or professional applications as well residential tasks for example fixing wall tiles and floor tiles. It is also performs perfectly as it uses two bright precise crossing horizontal and vertical beams to accurately work on all those layout and leveling jobs. The DW088K laser is infused with a magnetic pivot base which allows it to mount well onto metallic surfaces while the IP54 debris water resistant and over molded housing design makes it amazingly durable. This laser also features a side control panel with individual buttons for quick and easy operation of all the three beams. While you work inside the house this tool delivers the required brightness for clear visibility even over wider range due to 1/8inch range precision. And without forgetting, this laser is also made with the full-time pulse mode which preserves brightness of the beams and lets you work with a detector. Because of the DW088K laser’s accuracy, it is ideal for both indoor and outdoor use.\nWhat we like:\n- 165 foot range with detector; the DEWALT DW088K allows you to work with a detector as a result of the full time pulse mode that is designed with. This way you can increase the range to which the laser’s beam can reach all the way to 165 feet. It is compatible with the DW089 from Dewalt line laser detector which is sold separately.\n- 1/8 inch range precision; this cross lines laser at a 30 ft range will project its bright lines within 1/8 inches of an inch thus delivering really accurate results. Each project with this laser will turn out excellent.\n- Self leveling cross lines; the DEWALT DW088K is an effortless performing laser and this is due to the fact that it uses self leveling vertical and horizontal lines so as to offer you excellent layout and leveling results. Leveling and layout applications require a lot of precision which is exactly what this laser provides.\n- In built magnetic pivot base; it is constructed with a magnetic spinning base with 1/4inch thread that allows mounting on metallic surfaces extremely easy.\n- Full time pulse mode; with this full time pulse mode, the laser has ability to sustain brightness of the beams over an extended range and it is because of this mode that it is possible to use the Dewalt’s DW088K laser with a detector.\n- Durable design; from this laser expect nothing but long lasting performance reason being it features an amazingly sturdy design which is IP4 water/debris resistant and over-molded frame. With this design the laser can handle tough tasks and still remain in excellent working condition over a long period of time.\n- Convenient carrying case; for professionals who are always on the move and added storage convenience the laser comes with a very durable hard-sided kit box.\n- Ideal for both outdoor and indoor use; the DEWALT DW088K is not only made for indoors use but also for outdoors coverage. This laser doesn’t limit you to using it while you are indoors you can also use it for your outdoors needs if you wish to since it has the ability to extend working range all the way to 165 feet. Its indoor visibility range is 100ft and outdoor visibility range is 50ft. Many of the users actually love this laser due to its unlimited range of operation.\n- Perfect for both commercial and residential application; because of the accuracy and incredible visibility of the DEWALT DW088K laser it has been greatly appreciated by both home users who only use it for residential tasks as well as the professionals that use it for commercials jobs. Whether you want to install floor tiles or wall tiles, this machine will definitely be very good at its job. It is however better recommended for smaller professional jobs and not the large scale ones.\n- Three year limited warranty; the Dewalt DW088K comes with a full year of free service along with three year warranty and this is proof enough that this machine is designed with incredible quality since it gives you provision for returning the laser if you are not pleased with it. Any good quality machine should offer such good warranty because it gives buyers peace of mind that they are actually investing their money on a product that is worth it.\nWhat we don’t like:\n- Not ideal for large projects; when it comes to visibility quality over small sized areas there is no question about the Dewalt DW088K’s performance, however when it comes to larger projects this is just not the laser you will need because it will not offer the kind of accuracy and brightness over a larger scale. It is only recommended for smaller projects since that is when it offers outstanding results.\n- Lack of a locking pendulum; since the Dewalt DW088K has no lock on the pendulum you will definitely need to take better care of your laser reason being it could easily get damaged. A locking pendulum is meant to protect the machine’s inner components from any sort of damage and this laser lacks one.\nFor precision and outstanding accuracy on small scale professional tasks there is absolutely no better choice other than the DEWALT DW088K Self-Leveling Cross Line Laser. This laser features two bright crossing beams that are projected to deliver incredible layout and leveling application results. It is also designed with a full time pulse mode which is responsible for sustaining brightness via extended range and allowing the laser to work with a detector. It can offer visibility range of 100ft and even though this laser wasn’t really designed for outdoor use it can at least provide visibility range up to about 50ft. it is very easy to mount the machine on metallic surfaces as result of the magnetic pivoting base while its extremely tough design ensures maximum durability and long lasting performance. Overall one wouldn’t really be wrong to say that the DEWALT DW088K Self-Leveling Cross Line Laser","domain":"optical_engineering"}
{"url":"https://www.ocalabicyclecenter.com/product-list/accessories-1109/safety-1176/mirrors-1178/","date":"2023-03-29T07:04:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948951.4/warc/CC-MAIN-20230329054547-20230329084547-00519.warc.gz","language_score":0.9134954214096069,"token_count":195,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__32270561","lang":"en","text":"The LTD Mirrycle Mirror quickly attaches to Bontrager Isozone handlebars using the supplied wrench. It has a convex mirror for a wide field of view to help you clearly see approaching traffic. And the mirror easily adjusts to your optimum viewing angle.\nThe Mirrycle mounts in minutes with the wrench that is included. The mirror is a 3\" round, convex glass mirror with a wide field of view. The mirror is adjustable to any viewing angle. - Fits inside handlebars with 13.75mm – 22.5mm (.54\" to .875\") inside diameter\nSunlite's HD II Mirror offers a nice, wide and clear view of what's behind so that you can ride more safely. It quickly and easily attaches to virtually any handlebar configuration. It's light and fully adjustable.\nPage 1 of 1","domain":"optical_engineering"}
{"url":"https://www.jeii.com/laser.cfm","date":"2023-12-11T23:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679518883.99/warc/CC-MAIN-20231211210408-20231212000408-00189.warc.gz","language_score":0.9173263311386108,"token_count":504,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__309574788","lang":"en","text":"Designing 3D images takes some time but the end results will be breathtaking. The key to 3D laser engraving is to understand the software you are working with. You need to be able to shade your drawing in gray to give the depth desired in your image. The grayscaled drawing to the right previews what a laser ready 3D image should look like. Kern's KCAM laser software is one of the very few on the market which will accept true 8-bit or 256 different colors of gray for resolution. That means there are 256 different power levels from black to white, which correlates to the 256 different levels of gray between black and white.\nThe process can be as simple as taking your artwork, and printing it to the laser using our custom printer driver. 2-D laser engraving can be effectively achieved at full speed on our laser systems. The resolution used to laser engrave will determine the quality of the finished artwork. Typically the Kern Laser Engravers use 300 - 600 DPI (dots per inch) while engraving.\nMarking: leaves a contrasting color on metals by application of a water-based chemical.\nEtching: removes the surface of the material, no depth of cut.\nEngraving: removes material giving depth of cut.\nResolutions from 50dpi - 1200dpi are also commonly used. Laser engraving speeds are determined by the material being engraved, the size of the part being engraved, the depth desired and the size of the laser that is used. Our laser engraving machines can be customized to fit your application needs. co2 large format laser engraving equipmentLaser etching photographs into mirror, wood, marble, glass and other materials can be done effortlessly. Special software is available that will automatically convert gray scale image into a .tif file with the best resolution for the material being used. Photographs with good contrast between the image and the background work the best to engrave. Metal can be marked and etched with a CO2 laser. Water-based chemicals are available to coat the metal and will leave a semi-permanent mark where the laser beam has touched the surface of the metal. Some metals that can be marked are aluminum, carbon steel, stainless steel, chrome, brass, copper, nickel and tin. Anodized finishes on metal can be removed easily without any extra steps. Many colors are available.\nA Laser Engraving System can be used for:","domain":"optical_engineering"}
{"url":"https://www.cloosrobot.com/de-us/processes/details/laser-cut/","date":"2023-06-04T11:49:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649741.26/warc/CC-MAIN-20230604093242-20230604123242-00104.warc.gz","language_score":0.8876338005065918,"token_count":115,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__118608122","lang":"en","text":"The Laser Cut process strongly restricts the arc and generates a small focussed spot with a very high energy density. This energy melts the material and due to the kinetic energy of an additional cutting gas the molten metal is removed out of the groove. Laser cutting is characterised by an excellent cutting quality, an extremely high cutting speed and a very good automation capability. Depending on the requirement different laser types with different characteristics can be used.\nYour contact person\nTel.: +49 (0)2773/85-565\nClick here to find suitable solutionsView solutions","domain":"optical_engineering"}
{"url":"http://www.afxinc.com/information-center/lighting-education/glossary.html","date":"2017-04-27T18:39:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122619.71/warc/CC-MAIN-20170423031202-00221-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8469624519348145,"token_count":467,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__26691105","lang":"en","text":"Ratio of a lamp’s light output on ballast compared to the lamp’s rated light output. The higher the ballast factor, the more light delivered.\nCIRCLE E BALLAST\nIndicates special EPACT compliant version of ballast. Check the laws and codes for specific applications.\nCOLOR RENDERING INDEX\nCRI-indicates how true to color lighted objects appear. A higher number means truer color. The CRI creates light sources on a scale of 0 to 100. The higher the CRI the more vibrant or close to natural the colors the objects appear.\nCOLOR TEMPERATURE OR CHROMATICITY\nThe appearance of the light that comes from a light source. The color temperature is measured in Kelvin or “k”. The higher the color temperature, the visually cooler or bluer the light appears.\nA ballast that utilizes electronic components to transform current at high frequency to operate fluorescent or discharge lamps.\nThe measurement of the amount of light reaching the surface. Footcandles are measured in lumens per square foot.\nDifferent lamp types have different abilities to convert electrical power (watts) into visible light (lumens). The quality of light emitted is divided by the input power to determine the lamps efficacy. This is expressed as lumens per watt LPW.\nHow long on average a bulb is estimated to last. The number of burning hours on average after which 50% of representative groups of lamps in tests under controlled burning conditions and at a specified number of burning hours per start have failed.\nLumens per watt is a measure of energy efficiency. Fluorescent lamps are very energy efficient and emit up to 100 lumens per watt.\nBulb brightness. A higher number means brighter light. Fluorescent lamp lumens decrease over its life.\nA ballast that uses core and coil assembly to transform electrical current to start and operate fluorescent lamps.\nA ballast designed to operate 1” diameter, T8 fluorescent R.S. lamps. It is not compatible with T12 or preheat lamps.\nThe ratio of power(watts) to volt-amps of the ballast. The power factor ratio may be used to determine how efficiently total input power is being used.","domain":"optical_engineering"}
{"url":"https://aprimetime.org/product/nikon-d7000-dslr-body-only-old-model/","date":"2023-09-21T15:08:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506028.36/warc/CC-MAIN-20230921141907-20230921171907-00102.warc.gz","language_score":0.857006847858429,"token_count":251,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__81351847","lang":"en","text":"Nikon D7000 DSLR (Body Only) (OLD MODEL)\n(as of Jul 10,2023 21:57:47 UTC – Details)\nMeet the new Nikon D7000, a camera ready to go wherever your photography or cinematography takes you. Experience stunning images with sharp resolution and smooth tonal gradation, thanks to the 16 megapixel DX-format CMOS image sensor and a powerful EXPEED 2 image processing engine. Take advantage of its wide ISO range of 100 to 6400 (expandable to 25,600) and its incredibly low levels of noise. Expect your images tack-sharp and accurately exposed, thanks to the camera’s 39-point AF and Scene Recognition System using a 2,016-pixel RGB matrix metering sensor. And with an approx. 0.052-second release time lag and approx. 6 frames-per-second shooting, you won’t miss a moment.\nBody only; lenses sold separately\nHigh Speed 6 frames per second continuous shooting up to 100 shots\nBreathtaking Full 1080p HD Movies with Full Time Autofocus\nDynamic ISO range from 100 to 6400","domain":"optical_engineering"}
{"url":"http://bsrs.co.uk/glossary/4550605563","date":"2020-07-14T21:54:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657151761.87/warc/CC-MAIN-20200714212401-20200715002401-00434.warc.gz","language_score":0.9230758547782898,"token_count":935,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__110610562","lang":"en","text":"Aberrations: a deviation in power of the optical components of the eye, (either individually or in combination), from the ideal system that would produce a perfect point image on the retina. The aberrations induced by refractive surgery are best described as irregular but some studies tend to refer to them as being most similar to spherical aberration and coma.\nAccommodation: the ability of the crystalline lens to increase its power and therefore focus for near targets. Accommodation reduces with age.\nAstigmatism: a difference in power between the two principle meridians of the eye, usually perpendicular to each other (regular astigmatism). The resulting retinal image is elongated. Astigmatism can be associated with myopia or hypermetropia\nContact lens associated papillary conjunctivitis: inflammation of the conjunctiva that lines the inside of the upper eyelid. Redness and significant surface roughness (papillae) prevent successful contact lens wear. Cause: mechanical factors, immune response to lens deposits and lack of oxygen to the eye.\nContrast sensitivity: the lowest contrast at which a particular spatial frequency can be resolved. The peak of the average contrast sensitivity function falls between 2 and 5 cycles per degree.\nCorneal oedema: swelling of the cornea resulting in clouding of the tissue, increased light scatter and reduced contrast sensitivity. Usually caused by lack of oxygen to the cornea as a result of prolonged contact lens wear.\nExtended wear contact lenses: contact lenses designed to be worn throughout the day and night, usually for a continuous period of 7-30 days before being replaced.\nHypermetropia: long sight, which may manifest itself as poor near vision. The retinal image is blurred because the eyeball is too short or the power of the refracting elements is too weak. Young hypermetropes can accommodate to increase the positive power of the eye and overcome some or all of their hypermetropia. Older hypermetropes may require a refractive correction at both distance and near.\nIntraocular light scatter: the scattering of light by particles within the ocular media. Light scattered towards the retina reduces the contrast of the retinal image and hence reduces visual performance.\nKeratectasia: bulging of the cornea as a result of corneal thinning. Can be associated with a condition known as keratoconus or occasionally refractive surgery (LASIK).\nLASEK: an epithelial flap is created using alcohol and the underlying anterior stroma is ablated with an excimer laser before the flap is replaced.\nLASIK: a thin flap of corneal tissue is cut using a microkeratome and reflected back. The underlying stroma is ablated using an excimer laser to treat refractive error and the flap is repositioned.\nLogMAR: logarithm of the minimum angle of resolution\nMonovision: modification of the refractive correction to focus one eye for distance and one eye for near vision. This is usually achieved with contact lenses and allows presbyopes to function without extra glasses under the majority of conditions\nMyopia: or short sight. Distance vision is blurred because the retinal image is focused in front of the retina. The eyeball is too long or its refractive components are too strong.\nNeovascularisation: the growth of new vessels around the edge of the cornea (limbus), usually in response to excessive soft contact lens wear. In severe cases, the vessels extend towards the centre of the cornea and are at risk of leaking and causing corneal opacification.\nPresbyopia: an individual is said to be presbyopic when their accommodation is no longer sufficient to focus for objects at their habitual near working distance. This generally occurs when the accommodation is 3D or less, around the age of 45 years.\nPRK: following removal of the corneal epithelium, the underlying stroma is ablated using an excimer laser to reshape the surface to treat refractive error. The epithelium regrows across the treated zone within 5-7 days.\nRhegmatogenous retinal detachment: detachment of the neural layers of the retina from the retinal pigment epithelium due to the entry of intraocular fluid in to the subretinal space through a break in the retina.\nUnaided vision: the measurement of vision without correction of any refractive error\nVisual acuity: the measurement of vision corrected with spectacles or contact lenses","domain":"optical_engineering"}
{"url":"https://thehubgeneralstore.com.au/products/navir-worlds-best-bug-viewer","date":"2023-12-09T20:38:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100972.58/warc/CC-MAIN-20231209202131-20231209232131-00023.warc.gz","language_score":0.8464283347129822,"token_count":114,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__296452428","lang":"en","text":"Navir have been producing educational toys since 1968\nDouble magnifying container for bug viewing. You can study bug life with two different magnifying sizes.\nWith the small lens up magnify to approximate twice the size.\nWith the small lens down, magnify to approximate four times the size.\nCan also be used to study flowers, leaves, coins, stamps.\nLarge lens: diameter 45 mm\nSmall lens : diameter 32 mm\nMagnifications : 2 and 4\nDimension: 7cm x 7cm x 7.5cm\nMade in Italy","domain":"optical_engineering"}
{"url":"https://www.senpallcd.com/News_nc1_4","date":"2022-11-29T20:54:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710711.7/warc/CC-MAIN-20221129200438-20221129230438-00282.warc.gz","language_score":0.9230952262878418,"token_count":570,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__57176901","lang":"en","text":"[ 2017-08-05 ]\nThe Thin Film Transistor is short for Thin Film transistors.TFT screen are the mainstream of laptop and desktop display device, the class every LCD pixels on the screen is integrated in the thin film transistor to drive behind the pixels, so the TFT screen is also a kind of active matrix liquid crystal display device.It is one of the best LCD color displays, and the TFT type display has the advantages of high responsiveness, high brightness, high contrast and so on. Its display effect is close to CRT display.In Japan in 1993, after mastering the TFT - LCD production technology, liquid crystal display to the two direction: one direction is toward the low price, low cost of the STN LCD display direction, then introduced the DSTN - LCD (double super twisted array);The other direction is the development of high quality thin-film transistor tft-lcd.Early TFT LCD is mainly used in notebooks, though at the time TFT relative to the DSTN has a great advantage, but because of technical problems, TFT LCD on response time, brightness and the viewing Angle and a large gap with the traditional CRT display, coupled with very low yield lead to its high price, make the desktop TFT LCD becomes unreachable objects.However, with the continuous development of technology, the yield of constantly improve, with the emergence of some new technology, makes the TFT LCD in response time, contrast, brightness, has made great progress in visual Angle, pull close the gap with the traditional CRT display.\nEarly LCD in brightness, response time, contrast can not reach the requirements of the mainstream display, the response time of some products in more than 50 ms, trailing phenomenon is serious, only suitable for the moving image performance requirements is not high, these limitations also limits the LCD in the mainstream market promotion.But with the progress of technology, technology of mature gradually, TFT panel LCD monitor the response time of the obtained very big development, the current mainstream products are under 25 ms products, and even some manufacturers launched 16 ms response time of LCD display.At the same time, the LCD monitor has made great strides in brightness and contrast, and the TFT - LCD has reached a level of 1) and a vertical Angle of 170 degrees.2) display brightness to 500 nett, contrast 500:1;3) life spans more than 30,000 hours.\nOn the LCD display effect, due to the ascension of brightness contrast, most LCD monitors have realistic effects and CRT display, and because the response time greatly ascend, LCD display more and more suitable for more applications, 16 ms response time of LCD and even in the heat of the game and no residual shadows of tail phenomenon, has been accepted by some game enthusiasts.","domain":"optical_engineering"}
{"url":"https://www.haodelevel.com/news-show-682647.html","date":"2023-06-07T15:04:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653930.47/warc/CC-MAIN-20230607143116-20230607173116-00306.warc.gz","language_score":0.9341169595718384,"token_count":165,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__91658315","lang":"en","text":"Micro tilt level(spirit level tool)\nThe horizontal line of sight is obtained by means of a slightly inclined spiral. Its pipe level has small division value and high sensitivity. The telescope is connected with the tube level as a whole. The pipe level is slightly tilted in the vertical plane by virtue of the slightly tilted screw, which is consistent with the centering of the level and the horizontal line of sight.\nAutomatic Anping(spirit level tool)\nHorizontal line of sight is obtained with the help of automatic leveling compensator. When the line of sight of the telescope tilts slightly, the compensator moves the telescope relatively under the action of gravity, so as to quickly obtain the scale reading when the line of sight is horizontal. This instrument has higher work efficiency and stable precision than the micro tilt level.","domain":"optical_engineering"}
{"url":"https://villageeyecare.net/eyewear/eyeglasses-chicago/","date":"2023-09-29T01:30:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510462.75/warc/CC-MAIN-20230928230810-20230929020810-00300.warc.gz","language_score":0.9074409604072571,"token_count":495,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__167085550","lang":"en","text":"Learn More About Types of Lenses\nEyeglasses Chicago | Ophthalmic Lenses\nNew advancements in lens options offer comfort like never before. New lighter, thinner plastics, scratch resistance, anti-glare coats, UV protection, photochromics, and tints will make your glasses attractive, functional, and sturdy.\nAlso, progressive lenses have improved significantly with advanced designs. Whether it’s scratch resistance for glasses that come on and off often, or anti-glare coating for ongoing comfort from hours at a computer screen or under fluorescent lights, we have an on-site lab that can custom craft your eyeglasses in Chicago to suit your needs.\nWhen selecting eyewear in Chicago for your vision correction, you will be choosing your eyeglass frames, the type of lens, and lens coating with our trained staff of Optometrists and Opticians. Be sure to let us know about the activities you participate in when wearing glasses and ask your eye care professional about the lenses he/she has recommended for you, so we can choose lenses and eyewear that meets your vision needs.\nKnow your eyeglasses coating options:\n- Anti-Reflective: Reduces reflections to a minimum for crisper, clearer vision in all lighting situations.\n- Anti-Scratch: Provides optimum protection against scratches which can interfere with vision.\n- Anti-Static: Repels dust and dirt so lenses stay cleaner longer.\n- Hydrophobic: Dirt and moisture slide off the surface, so the lens is quicker and easier to clean.\n- UV Coating: Some lens materials block 100% of harmful UV rays. Those that don’t require a coating or treatment that offers full UV protection.\nAdditional options include:\n- Self-Tinting Lenses: Tint reacts to changing light, darkening in the sun, and clearing indoors. Self- tinting lenses offer full UV protection.\n- Polarized lenses: Sun lenses that filter out almost all glare created by sunlight reflected off of water, snow and other surfaces.\nCare for your ophthalmic lenses. Don’t leave your eyeglasses in the sun or near a heat source as this can damage the coating and frames. Most importantly, remember to keep your eyewear in a protective case when not in use. We look forward to helping you care for your eyeglasses in one of our Chicago locations.","domain":"optical_engineering"}
{"url":"https://www.hok.com/news/2016-06/mark-banholzer-and-tom-kaczkowski-discuss-the-latest-healthcare-lighting-design-trends/","date":"2024-04-22T06:31:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00091.warc.gz","language_score":0.9315567016601562,"token_count":449,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__130527574","lang":"en","text":"With lighting equipment accounting for a good portion of a project’s FF&E budget, Healthcare Design explores how healthcare organizations are investing in designs that pay off.\nExcerpted from Healthcare Design:\nHOK recently collaborated with a lighting manufacturer to develop a bedside exam light with an integral LED reading lamp. The fixture is recessed in the ceiling at either side of the patient bed so no light shines in the patient’s eyes, eliminating the glare and discomfort of traditional fixtures. “The lamp’s tight beam functions similarly to an airplane reading lamp and allows patients to read without disturbing sleeping family members within the room,” said Mark Banholzer, senior healthcare designer based in HOK’s Chicago office.\nBanholzer says HOK selects fixtures that don’t look like what you might expect in healthcare. “As long as we can achieve the required illuminance level and the fixture can be cleaned and maintained easily, we’re open to using nontraditional lighting options,” he said. For example, HOK’s typical lighting design approach is to minimize the visual impact created by fixtures so that the light itself becomes the expression. “A combination of form, texture, and colored surfaces—washed or enhanced with light—creates a rich and varied visual environment,” he said.\nWithin lighting source selections, the healthcare industry is seeing a noted increase in solid state lighting, or LEDs. “This was not the case even two years ago, but we have now reached the tipping point in LED lighting where every lighting system in a healthcare facility can use the technology,” said Tom Kaczkowski, director of lighting design based in HOK’s St. Louis office.\nIn fact, Kaczkowski says that major lighting manufacturers have embraced LED technology, greatly extending their lighting fixture palettes and offering designers systems for pinpoint accent lighting, grazing textured surfaces, or softly washing broad architectural planes. “Most LED systems are also dimmable out of the box, permitting cost-effective daylight harvesting, load shedding, or simple preset high/medium/low lighting level settings,” he says.","domain":"optical_engineering"}
{"url":"https://www.alarm-direct.net/post/solar-park-netherlands-additional-security-through-intelligent-camera-technology","date":"2023-12-01T13:31:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100287.49/warc/CC-MAIN-20231201120231-20231201150231-00534.warc.gz","language_score":0.9647380709648132,"token_count":132,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__110625020","lang":"en","text":"Solar park Netherlands - additional security through intelligent camera technology\nAfter the security of this solar park was already guaranteed by our fence sensor technology, our order was to upgrade it further with camera technology.\nOur intelligent camera monitoring systems not only provide additional security, but also enable efficient monitoring of the already installed fence security.\nThe integration of this technology not only increases the security of the solar park, but also ensures efficiency and precision in monitoring.\nOur client's awareness of the need to secure the solar farm was raised by advancing technology and ultimately we successfully completed their retrofit order.\nThank you to the entire team and for the trust you have placed in us.","domain":"optical_engineering"}
{"url":"https://scopecamadapter.com/product/gopro-hero-series-scopecam-adapter-mount/","date":"2024-02-24T08:48:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474526.76/warc/CC-MAIN-20240224080616-20240224110616-00707.warc.gz","language_score":0.8623985648155212,"token_count":98,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__3688220","lang":"en","text":"Use your HERO series GoPro with the universal adapter. This kit comes with the 34mm HERO tab with alignment template & universal adapter (camera not included). Simply mount the tab to the lens shield/cover centered over the lens. The lens cover on the HERO series cameras can easily be traded out or replaced. If you do not want the tab on the camera all the time you will want to purchase a separate lens cover to mount the HERO tab to. We ship with USPS first class mail.","domain":"optical_engineering"}
{"url":"http://parislemon.com/tagged/lytro","date":"2014-10-22T06:24:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1413507446231.28/warc/CC-MAIN-20141017005726-00080-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.9512930512428284,"token_count":362,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__125201159","lang":"en","text":"I haven’t used one yet, but this thing is fascinating to me. I love that they’ve made a camera with a totally new form factor rather than trying to cram the technology into something that looks familiar.\nWrites Sam Grobart for The New York Times:\nWhere a traditional image sensor (as in your point-and-shoot or DSLR) can only record where light strikes the sensor surface, Lytro’s image sensor can also record the angle that beam of light had when it struck it. By capturing that information, the sensor can pull in far more data about an image, allowing you to move through the picture, clicking and refocusing along the way.\nThere are additional advantages to a lightfield sensor. By capturing the angle of light beams, all pictures shot with a Lytro camera are natively 3-D (you still need a 3-D display and glasses, but the information’s already there). More importantly, the camera no longer has to focus because it’s capturing every focal point, which means there’s no focus lag. The camera can respond almost instantly to a shutter-release button.\nAnd it has 8x optical zoom.\nThe downside is that it won’t be available until early 2012, and the cheapest version will be $399 (for the 8GB model, which can store about 350 pictures).\nThe Lytro only works with Macs, but Windows software is in development.\nImagine anything not made by Apple going that route even just 5 years ago.\nUpdate: This Is My Next gave it a try and said that it’s “not universally amazing”, but also notes that it’s still a prototype version that they tested out.","domain":"optical_engineering"}
{"url":"https://www.richlineye.com/eyecare-services/eye-care-technology/","date":"2024-02-20T21:49:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473347.0/warc/CC-MAIN-20240220211055-20240221001055-00672.warc.gz","language_score":0.8763079047203064,"token_count":2025,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__42879903","lang":"en","text":"Eye Care Technology\nUtilizing Advanced Technology to Care for Your Eyes\nTechnological enhancements have improved the ability for your eye care providers to manage and detect eye diseases, aid in fitting difficult contact lenses, and keep accurate patient records. Our office keeps up to date on all the latest technological advances to ensure the best quality care for you.\nMyopia Master by OCULUS\nNEW to Richlin & Associates and NEW in Los Angeles\nWe are one of the first eyecare practices to use the new, cutting-edge Myopia Master that combines the ability to perform auto-refraction, measurement of axial length, and measurement of corneal curvature that indicates astigmatism (keratometry), along with a myopia software.\nOur Myopia Master allows for easier and more reliable detection of myopia, which leads to more accurate diagnoses and quicker treatment. This is especially important for young children as myopia becomes more prevalent. And this high tech eyecare equipment is anintegral part of Richlin & Associates Myopia Control Center.\nIf your child shows signs of near-sightedness or says their vision is blurry when looking at objects far away, they may benefit from testing with Myopia Master here in Beverly Hills. We look forward to providing comprehensive vision care for your family! Make sure to schedule your adult or children’s eye exams if you have not visited us recently.\nOptovue AngioVue OCT Angiography\nOCTA or Optical Coherence Tomography Angiography\nWhat is OCTA Imaging and why use it?\nOCTA is the only non-invasive method for our eye doctors to see your retina’s vascular structures.1 In the past, doctors used fluorescein angiography – which uses injections of contrast dye. Those dye injections were associated with range of side effects and produced limited imaging results.2 The AngioVue OCTA used in our office produces clear images in seconds and does it without needing dye injections.\nOur doctors ability to visualize your the vascular structures of your retina give us a clearer picture of the overall health of your eyes.\n1. Spaide RF, Klancnik Jr JM, Cooney, MJ. Retinal Vascular Layers Imaged by Fluorescein Angiography and Optical Coherence Tomography Angiography. JAMA Ophthalmol. 2015;133(1):45-50. Published online October 09, 2014.\n2. Kwiterovich KA, Maguire MG, Mrphy RP, Schacat AP, Bressler NM, Bressler SB, et al. Frequency of adverse systemic reactions after fluorescein angiography. Results of a prospective study. Ophthalmology. 1991;98:1139-42.\nLipiFlow Thermal Pulsation\nTechnology for Meibomian Gland Dysfunction (MGD) shown to improve gland function.\nDry Eyes and MGD\n86% of patients suffering from Dry Eye Disease are affected by Meibomian Gland Dysfunction (MGD).\nQuick, Drug-Free Treatment\nOur LipiFlow Thermal Pulsation system treats MGD without using drugs. Safety and long-term effectiveness have been demonstrated in peer-reviewed studies.2,3,4\n1. Lemp, M. A., Crews, L. A., Bron, A. J., Foulks, G. N., & Sullivan, B. D. (2012). Distribution of Aqueous-Deficient and Evaporative Dry Eye in a Clinic-Based Patient Cohort. Cornea, 31(5), 472-478. doi:10.1097/ico.0b013e318225415a2. Lane SS, DuBiner HB, Epstein RJ, et al. A new system, the LipiFlow, for the treatment of meibomian gland dysfunction. Cornea. 2012; 31(4): 396.3. Blackie, CA, Coleman, CA, Holland, EJ. The sustained effect (12 months) of a single-dose vectored thermal pulsation procedure for meibomian gland dysfunction and evaporative dry eye. Clin Ophthalmology. 2016; 10: 1385–1396.4. Blackie C, Carlson AN, Korb DR. Treatment for meibomian gland dysfunction and dry eye symptoms with a single-dose vectored thermal pulsation: a review. Current Opinion in Ophthalmology. 2015; 26(4):306-13.\nDigital Retinal Photography\nWe offer state of the art digital retinal photography using the Canon CR-1 Mark II Digital Retinal Camera. This gives us a more complete view of the back of your eye (the retina) than has previously been possible.\nWhat is Digital Retinal Photography?\nDigital Retinal Photography is new technology that represents the latest in eye disease detection. It allows us to more thoroughly evaluate your retina, the sensitive tissue in your eye that is responsible for vision. The retina is susceptible to a variety of diseases, which can lead to vision loss.\nWhy do I need this test?\nDigital Retinal Photography gives us a more comprehensive way of viewing your eyes than was previously available and it allows us to perform a more thorough exam. As it adds to our ability to evaluate the health of your eyes, it is especially important if you have headaches, spots or flashes, a family history of glaucoma, diabetes or macular degeneration, high blood pressure, elevated cholesterol, or arthritis.\nIs it covered by insurance?\nWhile insurance plans provide basic vision or eye health coverage, they do not currently include this advanced diagnostic testing. However, if your doctor determines digital retinal photographs are medically necessary, we will file this service through your medical insurance carrier.\nScans the back of the eye and assist in the diagnosis and management of retinal eye disease and conditions, such as glaucoma, macular degeneration and retinal lesions. It provides full color, 3-dimensional images and more detailed information than previously available. This information is invaluable in determining the treatment process.\nThe OptoVue RTVue OCT (optical coherent technology) completes 26,000 A-scans per second, or 65 times faster than prior technology. This is like comparing an old-style black-and-white analog television to today’s high-definition flat screen television. The faster speed provides an extremely high resolution for more accurate diagnosis of hidden eye conditions. This device provides color mapping of the optic nerve, retina and macula. This mapping establishes the presence and severity of a condition, such as glaucoma.\nThe OptoVue RTVue OCT is not unlike a CAT scan, but without the dye injections, loud noises or a claustrophobic tunnel. This new instrument is an ultra-high speed, high-resolution scanner for retinal imaging and analysis that is revolutionizing retinal diagnosis.\nThis non-invasive procedure takes about 15 minutes to complete and is covered by most insurance programs and Medicare.\nPeripheral Vision Testing\nPeripheral vision testing is important to detect for problems associated with the eye, optic nerve and brain. The Humphrey Visual Field Analyzer is the standard in visual field instrumentation.\nYour routine exam will include a visual field screening utilizing the Humphrey FDT Perimeter Visual Field. This new frequency doubling technology provides a very fast and clinically verified means of detecting early visual field loss. It is especially helpful in detecting glaucoma but may also detect other neurological disorders.\nFor more advanced visual fields we use the Humphrey-Zeiss HFA visual field analyzer. Our screening visual fields or other findings during the exam may dictate the need for advanced visual fields to more accurately diagnose problems with peripheral vision. It is the accepted standard of care in glaucoma diagnosis and management. Validated by decades of research and clinical experience, the Humphry-Zeiss HFA is the “gold standard” for advanced visual field testing.\nCorneal topography is non-invasive medical imaging technique for mapping the curvature of the cornea, the outer structure at the front of the eye. The Medmont E300 Corneal Topgrapher is a renowned market leader. Since the cornea is normally responsible for some 70% of the eye’s refractive power, its curvature is of critical importance in determining the quality of vision and can be used to assist in difficult contact lens fitting, refractive surgery, orthokeratology, keratoconus and scleral lenses. This device utilizes the most current contact lens fitting software to help design your contact lenses.\nDigital imaging systems are used to view and capture high quality contrast images of your eye. Utilizing the newest Huvitz ReSeeVit HR Elite Digital Camera your doctors can properly manage and identify problems on the front surface of your eye. Some common conditions are viral infections, corneal foreign bodies, and corneal ulcers can be digitally documented in your records.\nA modern device, which combines the most advanced refractive technologies and digital testing. It is designed for accurately determining the optical error of your eye and your best corrected vision. It can help determine and identify the degree of astigmatism and strabismus (eye muscle imbalance). Your prescription will be measured utilizing the modern Huvitz Digital HDR 7000 Refractor.\nElectronic Medical Records\nWe have been using Electronic Medical Records since 2005, so that we may maintain complete and precise records for all of your eye care needs. Using the Electronic Record system and Digital Signature check in process allows us to be as environmentally friendly as possible. We attempt to only utilize emails and text messages to notify you when your purchased products have arrived or for your annual appointment reminders.","domain":"optical_engineering"}
{"url":"http://omnieyespecialists.com/services/cataract-surgery-baltimore","date":"2024-04-23T10:25:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818474.95/warc/CC-MAIN-20240423095619-20240423125619-00757.warc.gz","language_score":0.9023272395133972,"token_count":730,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__17641545","lang":"en","text":"OMNI Eye Specialists performs both traditional and laser cataract surgery. Our doctors and staff will discuss with you which surgical option may be best suited for your particular vision, lifestyle and activities.\nLaser Cataract Refractive Surgery\nOMNI Eye Specialists is proud to be one of the first Maryland practices to offer Femtosecond Laser Cataract Refractive Surgery.\nIvan H. Garcia, M.D., provides patients with this premium cataract surgery experience utilizing the advanced CATALYS® Precision Laser System.\nDesigned specifically for laser cataract surgery, we are very pleased to be utilizing this technology for our patients.\nThe CATALYS Precision Laser System is indicated for use in patients undergoing cataract surgery for removal of the crystalline lens. Intended uses in cataract surgery include anterior capsulotomy, phacofragmentation, and the creation of single plane and multi-plane arc cuts/incisions in the cornea,\neach of which may be performed either individually or consecutively during the same procedures.\nKey Benefits for Patients\n- Customization with 3D Imaging, like a fingerprint, every eye has a unique size and shape.\n- Prior to treatment, the CATALYS Laser images your eye and makes a precise 3D map of relevant structures.\n- Enables your surgeon to create a tailored treatment plan that is uniquely customized for your eye.\nOMNI doctors can use the CATALYS Laser to create laser precise incisions, including circular opening in the lens capsule to access and remove the cataract. This precise incision helps your surgeon place the new artificial lens exactly where intended.\nMany of the steps of cataract surgery that are traditionally performed using handheld instruments can now be completed using the precision of a laser. The CATALYS Precision Laser System – developed in the heart of Silicon Valley – is designed specifically for laser cataract surgery. Thousands of patients have been treated with the CATALYS Laser.\nBefore Your Surgery\nBefore your surgery, our team will discuss various types of lens implants with you. How you see after surgery will depend on the type of lens implant used. It is vital that you discuss your lifestyle and vision expectations so that we can determine the right premium lens implant for you.\nDuring Your Surgery\nCataract surgery is relatively “patient-friendly.” It is usually performed as an outpatient procedure requiring only a few minutes. “Phacoemulsification” is the microsurgical technique used. It requires a tiny incision and breaks up the cataract with ultrasound waves.\n- Eye drops are applied for anesthesia.\n- The surgeon makes an incision and uses ultrasound waves to break up the hard, yellow proteins that form the cataract, leaving the lens membrane in place.\n- Next, a soft, flexible synthetic Intraocular Lens (IOL) is inserted into the lens capsule of the eye.\n- The lens is a permanent fixture that helps your eye to focus. You will not be able to feel or sense the implanted lens in any way.\nAfter Your Surgery\nBecause there are no needles or injections, only a tiny incision, stitches and an eye patch are not required after the surgery. In most cases, the incision is so small that the eye heals rapidly, with little or no discomfort, and the patient experiences a quick visual recovery. Patients can typically return to normal activities within a few days. The following video describes some symptoms patients may experience directly after their cataract surgery.","domain":"optical_engineering"}
{"url":"https://www.wicamfi.com/product/wcf-ip-a17-408ibar6/","date":"2019-09-16T17:07:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572879.28/warc/CC-MAIN-20190916155946-20190916181946-00009.warc.gz","language_score":0.8600824475288391,"token_count":150,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__5356847","lang":"en","text":"This IP Bullet camera is designed with 4 MP which give the excellent clarity for recorded footage. Get the coverage range up to 30 Mtr. max and min 20Mtr. This IP bullet camera is a best choice for outdoor security. 6-IR array LED gives you the clear vision. This product is covered with 2 year warranty.\n- 4 MP IP Bullet Camera : 20 – 30 Mtr\n- 1/3” HD-CMOS\n- 6mm MP HD Lens\n- IR Distance up to 20-30Mtr.\n- IR OutDoor Camera(Weatherproof)\n- 6-IR Array LED / up to 20-30Mtr…\n- PoE Supported\n- 265 / H.264 Supported","domain":"optical_engineering"}
{"url":"http://epiviosis.com/outdoor/military/accessories/led-lenser-torch-P17","date":"2018-12-10T10:55:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00517.warc.gz","language_score":0.9088569283485413,"token_count":555,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__95427182","lang":"en","text":"Survival Product Code: LEDTORCHP179417\nLed Lenser Torch P17 9417\nLed Lenser P17 - 9417\nDesign and technology have never come together so well. The Ledlenser's P17.2 casing is black and due its coating has an elegant and velvety appearance. The rippled surface means it sits particularly well in your hand, and what's on the inside also proves that the handheld torch has a lot going for it. With a battery life of up to 300 hours1 on the lowest setting, it continues to shine when other lights have long gone out.\nThe Ledlenser P17.2 features energy efficient CREE LED, with a beam distance up to 420 metres and a maximum 450 lumens brightness. The longer-bodied housing of this LED torch is made of aircraft grade aluminium and a matt black anodised finish, which looks great and improves grip. The patented Advanced Focus System of this hand torch delivers a more homogenous illuminated field of view and better overall light distribution, both in flood beam and spot beam illumination settings. A dynamic operating switch at one end of the P17.2 allows the user to regulate brightness with any of the three light settings: power, low power and boost, the size of the switch makes it easy to use, even when wearing gloves. The sliding Speed Focus of this LED torch allows the user to zoom from spot beam to flood beam and back with the use of just one hand. The hand torch is powered by 3 x D batteries included. The P17.2 is supplied with 360 degrees belt clip for hands free directional lighting. This LED torch is ideal for professional use in emergency services, search and rescue teams, police squads and security personnel.\nBrilliant heavy, longer‐bodied torch offering Professionals performances\nEnergy efficient CREE Power+ LED Light Chip\nState of the art, reliable German engineering\nAdvanced Focus System Optics\nPatented reflector and lens combination for intense spot or flawless flood illumination\nDynamic Switch‐ Reactive, large single switch controls light options\n3 light settings: power, low power, boost\nSpeed Focus enables smooth single‐handed beam focusing\nRecalibrated lens for wider light beam angle\nRobust, yet lightweight aircraft‐grade aluminium housing\nSmart, anti‐slip matt black finish\nCorrosion resistant gold plated contacts for better conductivity\nWater and dust resistant. IPX4\nLedlenser, the worlds leading brand of technologically advanced lighting products with patented reflector systems and the highest quality components to make the brightest, most energy efficient lights available. Ledlenser have applied their expertise to handheld lights for use almost anywhere a convenient powerful quality light source is required.","domain":"optical_engineering"}
{"url":"https://hobbyspace.com/Blog/?m=201403&paged=5","date":"2019-10-20T12:06:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986707990.49/warc/CC-MAIN-20191020105426-20191020132926-00261.warc.gz","language_score":0.9004529714584351,"token_count":405,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__10147996","lang":"en","text":"Masking out the intense bright light a star so that the dim reflected light of its planets, especially small earth-like ones, can be seen is no easy task. As mentioned in an earlier post, a starshade is a specially designed occulter that blocks a star’s light in a way that greatly reduces the diffraction around its edges. A starshade would be placed in space so that a telescope thousands of kilometers from it could observe planets around a distant star.\nNew Worlds Mission is a starshade project that has done early studies but has not been funded for implementation of an exoplanet observation system. This article provides more details on starshades: Incredible Technology: Giant Starshade Could Help Find an Alien Earth | Space.com\nAs it stands now, the assumed $1 billion mission would be able to target about 55 bright stars in a three-year span. [Sara Seager], the chair of NASA’s science and technology definition team for the starshade project, thinks it’s possible to find Earth-like planets orbiting 22 of those 55 stars targeted by the mission.\nOne major advantage to the starshade is that astronomers won’t need to couple it with a large, extremely expensive space telescope. By blocking out the light of a star before that light ever reaches the telescope, the starshade eliminates the need for a huge telescope, Seager said.\n“You don’t need a very fancy telescope that’s highly thermally and mechanically stable,” Seager told Space.com. “You can use any old space telescope. We can buy a telescope. That’s what we’re thinking of. … It sounds a little funny, but any telescope will do.”\n- Flower power: NASA reveals spring starshade animation – PlanetQuest/JPL\n- Flower power: NASA starshade petal prototype – PlanetQuest/JPL","domain":"optical_engineering"}
{"url":"http://www.skspolytech.com/otheruses.html","date":"2013-05-25T22:28:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706470197/warc/CC-MAIN-20130516121430-00056-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8892799615859985,"token_count":99,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__131971291","lang":"en","text":"12315 Robin Blvd.\nHouston, Texas 77045, USA\nToll-free (877) 533-8005\nSPF 2000™ is a highly versatile glass coating and can be applied to virtually any glass substrate. There are many products on the market that are susceptible to UV degradation or emit UV light, and could also benefit from this technology.\nOther ICC Products: K-13 | SonaSpray \"fc\" | SonaKrete | Ure-K","domain":"optical_engineering"}
{"url":"https://www.meftech.com.au/gaming/elgato-ring-light/","date":"2021-01-16T23:56:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703507971.27/warc/CC-MAIN-20210116225820-20210117015820-00776.warc.gz","language_score":0.8992276191711426,"token_count":326,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__269788211","lang":"en","text":"Recently, industry hardware powerhouse Elgato announced the launch of Elgato Ring Light. The premium LED light panel’s design provides professional quality lighting without glare. A 17-inch diameter ring shape guarantees that the Ring Light provides the best possible illumination of facial contours, eliminating pesky shadows or shine.\nThe device is also Wi-FI enabled, which allows for easy control and customization through a companion app available on macOS, Windows, Android, and iPhone.\nThe Ring Light features the same critically acclaimed flicker-free OSRAM LED technology that can be found in other Elgato products such as the Key Light and Key Light Air. The maximum brightness of 2,500 lumens can be dimmed in increments as little as 1%, allowing users to have lighting suitable for any environment. Elgato’s multi-layer diffusion technology combined with the edge-lit architecture enables content creators to work for hours without straining their eyes.\nWhile there is an app to control Ring Light, two onboard buttons allow users to adjust brightness and colour temperature on the fly. Ring Light also pairs perfectly with other Elgato devices such as the Stream Deck. Together the two allow for seamless one-touch control over your entire A/V setup.\nIncluded also is a telescopic pole and 3D swivel mount. This allows users to adjust the height and beam angle of Ring Light easily. There is also a camera ball mount with a 1/4 -inch screw that lets users mount cameras ideally for use with Ring Light.\nFor more on Elgato, check out our previous coverage.","domain":"optical_engineering"}
{"url":"http://rfslimmingmachine1.buy.bushorchimp.com/pz6ff0fc0-diode-low-level-laser-hair-regrowth-machines-laser-hair-loss-treatment-650nm.html","date":"2018-12-19T00:54:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376830305.92/warc/CC-MAIN-20181219005231-20181219031231-00607.warc.gz","language_score":0.7888966202735901,"token_count":1114,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__64320140","lang":"en","text":"Diode Low Level Laser Hair Regrowth Machines Laser Hair Loss\n1. 650nm wavelength laser for hair regrowth up.\n2. 120pcs diode laser lamp\n3. Ozone high frequency comb for hair sterilization.\n4. X200 lens hair analysis handle.\n5. 3 models micro-current stimulates scalp absorb the hair tonic.\n6. Spray gun shoot water mist promote the hair absorb nutrients.\n7. Touch screen control with USB port, it can paly MP3/MP4\n8. It will match hair growth tonic together using the machine .\nThis instrument uses a bio-energy and ultra-pulse laser irradiation\nof light directly on the affected area of hair loss. Laser light\nlaunched into the roots of the hair follicle, through the laser\nwavelength 650-810nm light and the role of multiple energy to\nactivate shrinking hair follicle cells, improve the blood supply\naround the capillaries, the blood circulation around hair follicle\naccelerated to more oxygen , as watering to a small tree to make it\ngrow fast . As the laser light can be into the subcutaneous\nskin30MM deep, so that the blood circulation of oxygen throughout\nthe brain increased, the supply of blood circulation in hair growth\nalso increased melanin, the natural hair back to black the original\ncharacter, to turn white hair black hair, hair loss fundamental\nchange in hair growth.\nThe instrument can also be imported hair nutrition drugs, drugs can\nbe cast in the hair root hair growth liquid, radiation treatment\ncan use this instrument quickly penetrate into the active\ningredients of drugs in hair follicle , the line will rapidly from\nwhite to black hair, no hair hair growth, just as fertilizer to the\nplants as fertilizer and if it is not watering, no fertilizer\nnutrients energy, further promoted the rapid growth of hair.\nHow does wholesale surgical diode laser system work?\nIn 1964, Professor alma lasers diode laser Andre Master discovered\nthat diode laser of laser hair growth\ntherapy (also called low-level laser) can penetrates the surface of\nthe skin with no heating effect, no damage\nto the skin and no known negative side effects to accelerate alma\nlasers diode laser hair growth and\nthickening of hair in the treated areas.\nVisible and monochromatic laser alma lasers diode laser in\nmid-600nm range includes a temporary\nincrease a temporary increase in skin blood flow with radiant\nexposures between 0.12 and 0.36 J/cm2.\nThis increase in blood flow is crucial to alma lasers diode laser\npromoting a healthy hair follicle. It brings\nthe important nutrients into the follicle, like ATP, while taking\naway harmful waste products such as DHT.\nATP increases cellular metabolism alma lasers diode laser and\ncellular activity. The hair follicle now has\nthe building blocks and alma lasers diode laser energy to transform\nfrom a weak follicle to one that is\nhealthy and capable of producing beautiful, thick healthy hair.\n1. Hair regrowth up\n2. Hair care therapy\n3. Hair analysis\n(1). Applying all the advantages of diode laser technique,\ntreatment effect is more conspicuous\n(2). 650nm wavelength of laser equipped, make the treatment more\ntargeted and accurate.\n(3). Modularized assembling, strong stability.\n(4). Fully intelligent detecting system, avoid device damage caused\nby improper handling.\n(5). 7\" TFT True Color Screen, functionalized designing menu,\nvisual and easy handling.\n(6). X200 hair analysis lens, clear and accurate.\n(7). 400 pcs diode laser lamp\n(8). Comfort of painless, non-invasive, traceless, no recovery\n( 9). High efficiency of short treatment time, quick effect, and\n(10). Ozone high frequency comb for sterilization, clean the hair\n(11). Micro-current promote the hair absorb tonic.\n|Laser Feature:||Low-Level Laser Therapy|\n|Laser source:||Diode Laser|\n|Laser Power :||Max. 5mw/diode|\n|Laser Amount :||120PCS|\n|High frequency electrode comb:||1PC|\n|Touch screen special||video or music play|\n|Packing Dimension :||114*59*59CM|\nApplying the technology of diode laser system,\nThe instrument can be imported hair drug nutrition, drugs can be\ncast in the hair root hair growth medium, using radiation therapy\nequipment to make the active ingrediants of drugs quickly penetrate\ninto hair-island, the line would quickly from white to black hair,\nno hair growth, just as fertilizer to the plants as fertilizer and\nif it is not watered, fertilizer-free nutrition, energy, and\nfurther promote the rapid growth of hair.\nMeanwhile the head of the instrument can improve local blood\ncirculation, activation of the first skin cells, promote\nangiogenesis and stimulate new collagen synthesis, endocrine\nregulation, improve the enviroment through photo synthesis to\nstimulate the synthesis of ATP(ATP three adenosine intoxicated) to","domain":"optical_engineering"}
{"url":"https://hilightingsa.com.au/lighting/arenavision-led-gen3-5/","date":"2022-08-07T22:45:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570730.59/warc/CC-MAIN-20220807211157-20220808001157-00428.warc.gz","language_score":0.9110375046730042,"token_count":190,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__48827868","lang":"en","text":"The Philips ArenaVision LED floodlighting system is an innovative LED pitch-lighting solution supporting the latest TV broadcasting standards. Designed exclusively for sports and multi-purpose venues, ArenaVision LED offers outstanding light quality, effective thermal management, and long lifetime. When combined with control applications such as the InteractSports lighting management system, ArenaVision LED can simplify the delivery of the right illumination by scheduling or through real-time adjustments and can be used to create customized light shows before, during and after the main event.\nTo ensure optimized use for both indoor and outdoor applications, the floodlight range includes two single piece pressure die cast housing versions, hosting 2 and 3 LED engines respectively. These versions also function with an external driver box – separate for use at a distance from the floodlight (BV version), or pre-fixed onto the mounting bracket of the floodlight (HGB version). This external driver box ensures ease of installation and lower initial cost.","domain":"optical_engineering"}
{"url":"https://www.maxinstrument.com/temperature-humidity/flir-e85","date":"2021-05-05T22:39:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988696.23/warc/CC-MAIN-20210505203909-20210505233909-00367.warc.gz","language_score":0.8822085857391357,"token_count":1096,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__18342610","lang":"en","text":"- Battery Analyzers\n- Borescopes & Video Inspection\n- Calibration Instruments\n- Data Loggers\n- Data Networks\n- Distance Meters\n- Electrical Testing\n- Electronic / Bench Testing\n- EMF & Gauss Meters\n- Environmental Testing\n- Insulation & Ground Testing\n- Material Testing\n- Motion, Speed & Force\n- Power Measurement\n- Pressure Measurement\n- Process Monitoring & Control\n- Sound Level Meters\n- Temperature & Humidity\nAdvanced Thermal Imaging Camera with MSX and UltraMax Technologies, 24° Lens and FLIR Tools+, 384 x 288, 30 Hz\nThe FLIR E8524KIT Advanced Thermal Imaging Camera with MSX and UltraMax Technologies, 24° Lens and FLIR Tools+, 384 x 288, 30 Hz offers superior sensitivity and a true 42° field of view in a user-friendly, handheld platform with appropriate lenses (sold separately). This camera can detect even subtle indications of building deficiencies and moisture intrusion, and offers on-screen area measurement, so that you can easily quantify and document air leaks, moisture, and other building problems.\nYour job can take you up ladders and into crawl-spaces, so you need tools that can be used one-handed and worry-free. FLIR designed E85-24-KIT to be tough enough to use every day, with simplified buttons and intuitive screens that allow you to focus on your work, instead of on the camera controls.\nThe E85-24-KIT produces standard radiometric JPEGs that can be opened and viewed without proprietary software. Image files produced by the E85-24-KIT are supported by FLIR's Software Development Kit (ATLAS SDK), so that companies can use their own software and still support thermal measurement read-outs, METERLiNK data, and other important parameters embedded within the image; embedded current and voltage measurements are also accessible.\nElectrical and Mechanical Applications\nThe FLIR E85-24-KIT offers the superior resolution and range performance needed to quickly identify hot spots and discover potential points of failure in electrical distribution and mechanical systems. With up to E85-24-KIT pixel resolution and a larger, more vibrant LCD screen, the E85-24-KIT makes it easier than ever to diagnose problems, even at a distance. Avoid costly shutdowns and lost production time through regular predictive maintenance routines with this rugged, intuitive camera.Multiple Targets, One Solution\nNot every target is large enough or close enough for proper measurement with a single lens. That is why FLIR designed the E85-24-KIT with interchangeable 24°, 42°, and 14° lenses, so that you can use the same camera for every target you survey. The camera auto-calibrates with each new lens to ensure it produces high-quality images and precise thermal measurements.\nMulti-Spectral Dynamic Imaging (MSX) Technology adds visible spectrum definition to IR images by detecting the edges of objects. Text becomes clearly visible so that you can read a label or identifier within the IR image. This exclusive function provides extraordinary thermal detail that instantly highlights and orients problem locations and eliminates the need to refer back to a visual image for detail.\nUltraMax is an image enhancement technology in the E85-24-KIT that captures a series of thermal images and combines the data into one new image. The result is an impressive quadrupling of thermal pixels, including full radiometric measurement data.\nAs a result, UltraMax thermal images will be clearer and larger, allowing for a better analysis of small details. Because of an increased number of pixels covering the same target area, UltraMax also decreases measurement spot size. This gives greater measurement accuracy to particularly small details. With the new UltraMax feature, users can obtain even better results, allowing them to be even more productive.\nUltraMax is a type of superresolution, a technique for combining the information from multiple original images into an image with higher resolution and less noise. This might seem similar to two other scaling techniques - interpolation and pixel averaging. However, they are totally different.\nUltraMax uses the natural movement of the human body to capture an image set in which each image is slightly offset from the others. This results in a wealth of data that is much greater than any one image could provide. The data is combined to form an image that includes many more pixels of the target, resulting in a resolution greater than that of the original camera detector. The data is also used to create a clearer image, since pixel noise can be reduced through comparing similar points in multiple images.\nFLIR UltraMax captures 16 thermal images in less than one second. These are stored on the camera as a single jpg file, and will appear as one image when viewed on the camera or in software. In the FLIR Tools environment, you can choose to enhance the image resolution. This is the UltraMax functionality. The enhanced image will have twice the original resolution and four times as many pixels. All pixels still include radiometric data, just as with normal FLIR thermal images.\nAs a result, UltraMax thermal images will be clearer and larger, allowing better analysis of small details. Because of an increased number of pixels covering the same target area, UltraMax also decreases measurement spot size. This gives greater measurement accuracy to particularly small details.","domain":"optical_engineering"}
{"url":"https://gunnar-optiks.eu/brand/eyewear/cruz","date":"2024-03-02T13:44:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475825.14/warc/CC-MAIN-20240302120344-20240302150344-00644.warc.gz","language_score":0.9184920787811279,"token_count":126,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__202480074","lang":"en","text":"Protect your kid's or teen’s eyes in the digital age with Cruz from GUNNAR, the leading experts in blue light blocking technology. Cruz computer glasses come in age groups of 4-8, 8-12 and 12+ and protect against short and long-term side effects of digital eye strain, including: headaches, dry eyes, blurry vision, glare, negative effects of artificial blue light, eye strain and fatigue. The result – improved clarity, focus and performance. Cruz blue light blocking computer eyewear is perfect for your kid or teenager. All Cruz are natural focus and are also ideal as gaming glasses.","domain":"optical_engineering"}
{"url":"http://www.tested.com/tech/photography/453105-metabones-speed-booster-lens-adapter/","date":"2018-05-25T02:22:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866917.70/warc/CC-MAIN-20180525004413-20180525024413-00232.warc.gz","language_score":0.9466678500175476,"token_count":410,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__160753942","lang":"en","text":"We missed this announcement during the CES shuffle, but Adam actually brought it to our attention. Metabones is a new optics company that has created a lens adapter for Canon and Nikon lenses for use on Sony E-mount cameras (like the NEX series). Other unofficial lenses exist to bridge those standards, but what makes Metabones' different is the inclusion of proprietary optics--a focal reducer--in the adapter that adjusts the light coming from the lens. This basically acts like an inverted optical zoom, shrinking the image coming into the objective lens to fit into the APS-C sensor. With other adapters, you have to settle for some additional cropping when using a non-standard lens, but Metabones claims that its adapter will give you full coverage of your Canon EF or Nikon FX lens (full-frame only), in addition to granting an extra stop of light. That means a 35mm f/1.4 lens that would otherwise be cropped to 50mm effectively becomes a 35mm f/1.0 lens on your E-mount APS-C camera. That's wild.\nMetabones began taking pre-orders last week ($600), and early reviews with both photos and video show that there isn't much tradeoff in image quality when using the lens--corner sharpness only takes a small hit. Adam actually has one coming in for his own E-mount cameras, so we'll be shooting a video demonstration of the adapter in the near future.\nIf Metabones' system proves to be as good as it sounds on paper, it would make owning both a compact mirrorless system like Sony's NEX or Panasonic/Olympus' Micro 4/3rds (speed booster adapters for MFT coming later) much more viable as a companion camera to a high-end full-frame Canon or Nikon kit. That way, you can buy just the MILC body and invest in full-frame lenses for your DSLR.\nCorrection: fixed focal length explanation in first paragraph.","domain":"optical_engineering"}
{"url":"http://sonicmeter.com/","date":"2017-08-19T16:39:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886105700.94/warc/CC-MAIN-20170819162833-20170819182833-00478.warc.gz","language_score":0.8435677289962769,"token_count":155,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__10862286","lang":"en","text":"Who we are\nSonic Meter is an instrument design division of SyncroCraft, LLC specializing in precision instrument development for use in quantifying ultrasonic cavitation of ultrasonic cleaning tanks.\nOur current product is a high precision handheld instrument with a tethered probe that can be used to measure the cleaning performance of ultrasonic cleaners. We also build custom meters and probes to suit your unique applications.\nWe offer repair and calibration services for our meters and development of custom ultrasonic measuring equipment.\nWe strive to provide high precision cavitation meters for use in demanding, highly controlled environments for the semiconductor, optics, medical, aerospace, automotive, precision machine tools and high precision micro components industries.\nPlease click Products to learn more about our high precision cavitation meter.","domain":"optical_engineering"}
{"url":"http://eduardospib222.blogdigy.com/2-facts-individuals-do-certainly-not-recognize-about-lasik-eye-surgical-operation-4966930","date":"2018-12-10T10:26:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00536.warc.gz","language_score":0.9545969367027283,"token_count":874,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__71992973","lang":"en","text":"2 Facts Individuals Do Certainly Not Recognize About LASIK Eye Surgical OperationThe eye can be examined with relative ease regarding both its function and its structure. A functional assessment consists of the ability to relocate the orbit and the reaction of the student to light and lodging.\nThe function of the eye may be tested in several methods. The patient might be asked to determine illuminated letter or items of differing sizes on what is called the Snellen chart.\nConversely, the assessment of the structural part of the eye might be made in several ways. Tension within the eyeball is measured by a \"tonometer.\" In particular diseases, especially in glaucoma, the stress in the eyeball is increased markedly.\nIt needs to be well remembered that a patient with an eye problem may have other issues. Often other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can notify the doctor and the patient to troubles in some disruptions of other parts of the body even before other symptoms present themselves.\nOne's dependence on sight is highlighted when one faces a short-term or possible permanent loss of this essential sense. When restorative procedures are sought, certain kinds of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some individuals are troubled with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to encourage reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction. The only distinction is that with this kind of surgery, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that people should know. Most likely, the main reason this type of eye surgical treatment has actually ended up being well accepted is due to the fact that most of its cases had succeeded.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgery includes the operation of the retina, which is among the most delicate portions of the eye, the majority of people say that the operation can be really risky.\nIn other words, a basic mistake might nearly trigger an individual's life time blindness. Hence, it is essential to think about numerous aspects before choosing whether LASIK eye surgery is the ideal corrective step one needs to go through.\n2. It is not a perfect procedure\nLASIK eye surgical treatment may correct your vision but it does not always suggest that it can give you a twenty-twenty. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not always suggest they have ideal vision as well.\nOffered all imp source these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the ideal eye surgery the method many people view it\nConversely, the examination of the structural part of the eye may be made in numerous ways. It must be well remembered that a patient with an eye problem may have other issues. Typically other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can notify the patient and the physician to troubles in some disturbances of other parts of the body even prior to other symptoms present themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://www-business-standard-com-nalsar.knimbus.com/technology/tech-news/here-s-what-apple-s-vision-pro-prescription-optical-inserts-look-like-123062100564_1.html","date":"2023-12-05T21:34:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00683.warc.gz","language_score":0.950480043888092,"token_count":386,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__40545369","lang":"en","text":"Recently, Apple unveiled its much-anticipated mixed-reality headset, the Apple Vision Pro, at the Worldwide Developers Conference 2023 (WWDC). The headset has sparked a great deal of interest. However, some glasses wearers had expressed concerns about its compatibility with prescription glasses.\nIn response, Apple had said that the Vision Pro would support optical inserts that would be provided by German camera and lens company Zeiss. The lens maker has now provided a first look at its prescription lenses for the headset, which will be available in the United States next year.\nZeiss provided a glimpse of the optical inserts on its website. The company said the magnetic lenses will let users who wear spectacles use the Vision Pro headset without any hindrance.\nWhile Zeiss did not reveal the price of the optical inserts, Bloomberg's Mark Gurman had estimated a pair of Zeiss prescription glasses for the Apple Vision Pro could cost at least $300 (roughly Rs 24,700) and could go as high as $600 (roughly Rs 49,500). Zeiss said its optical inserts for Apple Vision Pro will be available early next year in the US. Zeiss and Apple have not made any announcements regarding the launch date of the lenses in India.\nCustomers who require vision correction and wish to use Apple's upcoming Vision Pro mixed reality headset could end up spending around $4,000 (roughly Rs 2,86,600), as the headset itself is priced at $3,499 (roughly Rs 3,25,100).\nLaunched at the WWDC, the Apple Vision Pro will be available in the US beginning in 2024. It features VisionOS and has two ultra-high-resolution micro-OLED screens. It also introduces a three-dimensional user interface controlled by a user's eyes, hands, and voice. Vision Pro will run on M2 and R1 chipsets manufactured by Apple.","domain":"optical_engineering"}
{"url":"http://www.faanderson.co.uk/product-category/optics/telescopic-sights/swarovski-sights/","date":"2018-01-20T18:43:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889681.68/warc/CC-MAIN-20180120182041-20180120202041-00598.warc.gz","language_score":0.8491767048835754,"token_count":169,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__163435961","lang":"en","text":"Swarovski Optik is a division of the Swarovski group of companies, manufacturing high-quality optical instruments. Its headquarters are in Absam, Tyrol, Austria. Specialising in the development and manufacturing of long-range optical instruments, including binoculars, telescopes (spotting scopes), rifle scopes, range finders and night sight devices.\n1959 First Swarovski Optik rifle scope (4×32)\n1967 First Swarovski Optik extendable spotting scope (30×75)\n1993 First hunting rifle scope with reticle illumination\n1995 First rifle scope with integrated laser range finder\n1999 First binoculars with wrap-around grip, named EL\nSwarovski Optik holds a royal warrant of appointment to Queen Elizabeth II, granted in 2009\nShowing all 3 results","domain":"optical_engineering"}
{"url":"https://www.evolusystech.com/products/led-optical-tester/lumere-lc","date":"2021-03-02T03:01:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178363211.17/warc/CC-MAIN-20210302003534-20210302033534-00361.warc.gz","language_score":0.772737979888916,"token_count":395,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__132204594","lang":"en","text":"Lumere LC is a LED test and measurement system for various parameters of LED light. It is economical, its geometry conforms with CIE-Publication 127, and the test program is easy to configure and adjust. Main application is in the production of LEDs.\nThe system can be coupled with a baffle tube Condition A or B for luminous intensity measurement or an Integrating Sphere for luminous flux measurement. Standard sphere sizes of 8”, 6”, and 4”, as well as custom sizes, are available.\nLumere can be combined with Lumeresoft™ software, specifically designed for the LED production environment. It controls the Spectroradiometer and Source Meter and provides the LED binning information via Digital I/O, RS-232, GPIB, Centronics and more.\n• Recommended geometry according to CIE Pub. No. 127\n• NIST- or PTB-traceable calibrations\n• Test time < 90 msec (Near real-time optical measurement)\n• Easy connection to handler systems\n• Advanced binning management for up to 1024 bins\n• User-friendly, scalable test software with flexible programmable test flows\n• Real time test data display, statistics report, and low yield trigger\n• Spectral Range: 380 nm - 780 nm\n• Dynamic Range: 16 Bit / 65536:1 Counts\n• Detector: CCD Linear Array, 2048 Pixel\n• Flux / Intensity Accuracy: +/- 4%\n|Wavelength||+/- 0.5 nm||+/- 0.5 nm|\n|Dominant Wavelength||+/-0.5 nm||+/- 0.1 nm|\n|Chromaticity Color Coordinates (x,y)||+/- 0.003||+/- 0.002|\n|Color Correlated Temperature (CCT)||+/- 4%||+/- 1%|","domain":"optical_engineering"}
{"url":"https://cegroup-lb.com/product/flir-e95-advanced-thermal-imaging-camera/","date":"2023-12-01T07:45:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100276.12/warc/CC-MAIN-20231201053039-20231201083039-00256.warc.gz","language_score":0.8339002132415771,"token_count":309,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__260600136","lang":"en","text":"The FLIR E95 offers the great features of the E75 and E85, plus 161,472 points of temperature measurement (464 x 348 true native resolution) and wide temperature ranges, up to 1500°C. The E95 has a superior spot-size ratio and is sensitive enough to detect minute temperature differences.\nWIDE TEMPERATURE RANGES\nThe E95 offers wide temperature ranges, up to 1500°C (2732°F), for steel mills and other applications that require accurate measurement of high temperatures.\nINTELLIGENT AUTOCAL™ OPTICS\nFLIR engineered all new lenses for the new Exx-Series that are truly interchangeable, so you can auto-calibrate additional optics to your camera, or share optics between cameras.\nQUICK, EASY REPORTING\nFrom helpful image annotations, such as distance-to-target and target square area, to logical screen navigation and folder structures, the E95 streamlines reporting so you can spend less time on paperwork.\n- FLIR E95 24°: FLIR E95 equipped with 24° field of view lens. The narrow field of view on this 17 mm lens allows you to fill the frame with an electrical target while maintaining a safe working distance.\n- FLIR E95 42°: FLIR E95 equipped with a 42° field of view lens. The wide-angled 10 mm lens is best suited for scanning walls, floors, and ceilings for air leaks, water damage, and other faults.","domain":"optical_engineering"}
{"url":"https://www.inswinggolf.co.uk/Camera-Swinguru","date":"2022-05-19T01:44:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662522741.25/warc/CC-MAIN-20220519010618-20220519040618-00465.warc.gz","language_score":0.9065321087837219,"token_count":397,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__37897459","lang":"en","text":"+ £12.00 UK Shipping\n+ £30.00 Europe Shipping\n+ £60.00 Worldwide Shipping\n- Ex Tax: £195.00\n- Product Code: Intel® RealSense™ Depth Camera D455.\n- Availability: In Stock\nIntel® RealSense™ Depth Camera D455.\nHOW IT’S DIFFERENT:\nStereo depth works in a wide variety of lighting conditions. With its long range, enhanced accuracy and easy deployment, the D455 camera is a powerful tool that can be used for both indoor and outdoor applications.\nPrior to this new release, the fastest frame rate that the Kinect depth cameras could offer was 30 frames per second. With the release of the D455 camera, it has now been increased to 90 frames per second. This not only enables the capture of high speed movements and objects but means we are performing about three times more depth calculations per second and therefore enables us to increase the accuracy of our measurements and analysis.\nWHY IT’S IMPORTANT:\nThe D455 camera increases the optimal range to 6 meters, without sacrificing field of view. The D455 also includes global shutters for the depth and RGB sensors to improve correspondence between the two different data streams and to match the field of view between the depth sensors and the RGB sensor.\nHOW IT WORKS AND ACCURACY:\nThe D455 achieves less than 2% Z-error at 4 meters (13 feet) with several improvements. First, the depth sensors are located 95 millimeters apart, providing greater depth accuracy at a longer range. Second, the depth and RGB sensors are placed on the same stiffener, resulting in an improved alignment of color and depth. Lastly, the RGB sensor has the same field of view as the depth sensors, further improving correlation of depth and color points.\nTags: Swinguru camera package","domain":"optical_engineering"}
{"url":"https://www.lux-ident.com/products/glass-transponders/","date":"2023-06-05T03:56:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650620.66/warc/CC-MAIN-20230605021141-20230605051141-00795.warc.gz","language_score":0.6820449233055115,"token_count":165,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__277877036","lang":"en","text":"Glass transponders are suitable for a wide variety of applications that require a small tag size and a long read range.\n- Best performance / size ratio\n- Bio-compatible glass encapsulation\n- Possibility to inject the tag under the skin\n- Suitable for applications in metal environment\nBio-compatible glass encapsulation\nAvailable chip technologies\n|Manufacturer||125 kHz (134.2 kHz)|\n|EM Microelectronic||EM4102, EM4200, EM4305|\n|NXP||Hitag® S 256bit, Hitag® S 2048bit|\n|Microchip – Atmel||ATA5575M1, ATA5575M2, ATA5577, Q5|\nOther ICs are available upon request.","domain":"optical_engineering"}
{"url":"https://essin-em.com/optics-backed-by-artificial-intelligence-a-neural/","date":"2022-09-24T16:36:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030331677.90/warc/CC-MAIN-20220924151538-20220924181538-00148.warc.gz","language_score":0.9449507594108582,"token_count":984,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__73221516","lang":"en","text":"Optics supported by artificial intelligence – neural holographic display\nScientists have developed a way to realistically reproduce reality in holograms. The display segment and AR technology could be revolutionized by new calibrations related to artificial intelligence. Opticians have decided to use AI to increase computing power without changing the specifications of the devices themselves. The results are very promising!\nWhat defect do realistic holographic visualizations face today? Portal scitechdaily.com points out that they are unrealistic because they are shown as 2D renderings, and the human eye, in very large, organic terms, is accustomed to feeling depth in the image that surrounds it. 3D display technology based on laser light performs poorly in this aspect and suffers from so-called. specularity, as the nature of the laser light beam is unable to carry such an information payload to our retina. The problem is also the limited possibility to influence the appearance of the light wave, compared to e.g. to frames presented on LCD screens. This fact affects the rather poor resolution of such an image.\nScience Advances has published a study that details describe mottle distortion in laser-based holographic displays, while discussing a technique to reduce it.\nGordon Wetzstein, associate professor of electrical engineering and head of the Stanford Computational Imaging Lab, and his team are working on something more revolutionary. They are engaged in solutions that will fill the void between simulation and reality. For now, their efforts are focused on creating displays that are more visually appealing and more pleasing to the eyes than the existing ones we use.\nPhysics is the key to success\nThe Scitech Daily article also points out another major drawback of holographic screens. It is Lack of possibility to reproduce real physical reality, what is related to m.in. with the delay registered by the eye between events and the shape of the image emitted by the source. The solution to this issue turns out to be artificial intelligence.\nThe role of artificial intelligence in the holographic process\nYifan Peng of the Stanford Computational Imaging Lab, as an optician and computer scientist proposed the implementation of a new technology – optical engine. This one is expected to drive modern holographic displays.\n– It is only with the recent innovations in machine intelligence that we have gained access to powerful tools and opportunities to take advantage of advances in computer technology – said the scientist and co-author of the SIGGRAPH article.\nAn artificial intelligence-based engine is to implement machine learning in action similar to that known for our brains. The neural network is to mimic physics in real time and return the image in simultaneous looping, which will enhance the perception of realistic perception. Instant feedback is also information for the algorithm to correct and improve the image that encounters problems. This is how the calibration technique that works in real time and also reacts to the present image seen by our eyes.\nResearchers, by testing such technology, have been able to create more realistic-looking visualizations with better colors, contrast and clarity than ever before. The technology has been identified a neural holographic display.\nLED in holograms?\nCamera looping optimization, coupled with an AI-inspired algorithm is to use LEDs and SLEDs. They are cheap, not too big and energy efficient. Classifying the technics, these bulbs can be classified as partially coherent light sources, as opposed to a coherent laser.\nLED light improves display stability and avoids spots and mottling, but causes image blur and poor contrast. Hence the need for an algorithm specific to the physics of partially coherent light sources.\nIn a word of summary..\nIn general, delving into this technology may lead to reflections on the very way of seeing on different kinds of surfaces. It was described in a very interesting way by biecek.en in words: “Two shades of gray may or may not be distinguishable on a computer screen, and behave quite differently on a printed. In the case of computer screens we usually have much higher image contrast than in the case of print, but at the price of lower resolution. Most modern computer screens have a resolution in the range of 100-300 pixels per inch, laser printers have a print resolution of 600-2400 dots per inch.”\nInteresting insights are also provided by interview with Małogrzata Osowiecka , itvip portal.pl referred to as “an expert on the brain, not the eyes,” in which she argued that pScreen brightness is harmful to the eyes, its curvature is required as well as that the number of hertz matters When it comes to image processing by the brain.\nHolograms are also to be used in advertisements.\nAnd also we can display our holographic images ourselves, using the application!\nMobile Trends wishes you interesting insights and fun!","domain":"optical_engineering"}
{"url":"https://www.dtequipment.com/technology","date":"2021-09-29T00:51:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780061350.42/warc/CC-MAIN-20210929004757-20210929034757-00593.warc.gz","language_score":0.8620544075965881,"token_count":338,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__136926315","lang":"en","text":"LIQUID PHASE LASER INDUCED BREAKDOWN SPECTROSCOPY\nDTE's EA-2000 determines elemental concentration directly from the molten aluminum or aluminum alloy, by firing a sequence of laser pulses on the liquid metal surface.\nDTE's proprietary and patent pending improvements to industry standard laser-induced break- down spectroscopy (LIBS) solves the challenge of continuously performing immediate and accurate elemental analysis directly from the high temperature liquid metal surface.\nThe current practice of elemental analysis in aluminum smelters involves manual sampling of liquid metal that is cast into a mold, solidified, quenched, trimmed, machined and analyzed in a laboratory, typically using optical emission spectroscopy (OES).\nBy replacing costly and time consuming batch sampling with real-time analysis, DTE’s unique solution presents huge cost-saving and value enhancing opportunities.\nImmediate and accurate elemental analysis\nAs the EA-2000 is measuring directly in the melt, it can monitor real-time concentration changes that would be difficult or impossible to capture using conventional sampling methods.\nLimit of detection (LOD) is well within working range for elemental analysis and error with respect to reference is unprecedented for in-line analysis.\nHow does LIBS work?\nLIBS uses a highly energetic laser pulse to excite the liquid metal surface to form a plasma plume with temperatures in excess of 100,000 K.\nA sensor detects the atomic emission spectra-- characteristic frequencies -- of each element in the material being analyzed, which are then converted into a quantitative reading.\nThis contactless process reduces the expense of replacement probes used by other methods.","domain":"optical_engineering"}
{"url":"https://www.slack.co.uk/75-noctilux-m.html","date":"2023-12-01T04:21:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100264.9/warc/CC-MAIN-20231201021234-20231201051234-00098.warc.gz","language_score":0.9396730661392212,"token_count":1777,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__282083625","lang":"en","text":"Leica 75 Noctilux M F1.25 Asph\nIt’s always exciting receiving a new lens from Leica for testing. Unlike the camera bodies it is often a long time from prototype testing until the lens is introduced. I’ve had several versions of the 75 Noctilux over an 18 month period. It seems that one of the biggest challenges of lens development is to turn the perfect prototype into a perfect production lens.\nI tested the most recent lens for about 3 months, it went back to Leica in February 2017. All the lenses seemed to behave perfectly from an optical point of view without a perceptible difference in quality, and although I’ve not spent any time with a production copy I imagine that they are very similar.\nWhen looking at the images in this article it should be borne in mind that they have been shot with a prototype lens.\nThe Way Up\nISO 100 1/350th Leica M10\nThe original 50 Noctilux (f1.2) arrived in 1966 during a period when the major manufacturers were all racing to produce fast standard lenses. These lenses were powerful weapons in the photojournalists armament, principally because film speeds were so much slower than the ISO values available to digital photographers today.\nThe advances in the production of aspherical elements, higher quality glass and precision production technology has helped to produce better and faster lenses and these have usually been bigger and heavier as well.\nIt’s worth noting that, large as this lens certainly is, it’s around the same weight as the Zeiss Otus 55mm f1.4 and a bit lighter than the Ziess Otus 85mm f1.4 (1200 gm against 1055 gm for the Noctilux). The diameter at 90mm is roughly the same as the Otus lenses, but the Noctilux is considerably shorter at 101mm (the Otus 50 is 140mm long).\nIt could be argued that with the sensitivity of modern digital cameras (certainly a 4-stop advantage over film) that the need for fast lenses is over. However, the possibilities of shooting in very low light, and the attraction of very limited depth of field has increased the market for high quality wide aperture lenses.\nIt's a family affair\nISO 200 1/180th Leica M10\nISO 100 1/4000th Leica M10\nThe Noctilux 75 f1.25\nIt is a logical design development from a 50 mm lens to a 75mm. This is can be seen in the pairing of Walter Mandler’s 50 Summilux, and his much acclaimed 75 Summilux of 1980 (said to be his favorite lens). More recently Peter Karbe’s 50 mm Summilux Asph and the 75 mm APO Summicron (certainly my favorite lens). Similarly, the new 75 Noctilux is a design sibling of the Leica Noctilux f0.95.\nThe Maximum aperture of f1.25 is a function of the entrance pupil, the focal length and the 67mm front element. The lens has 2 aspherical elements, and the slightly smaller aperture and field of view (75 vs 50) both allow the 75 Noctilux to perform even better than the 50 Noctilux.\nA group of 3 elements floating nearest to the camera eliminate the problem of focus shift, but also ensure that the lens can make better quality images at the shortest distance of 0.85m (the minimum focus distance of the 50 Noctilux f0.95 is 1metre)\nPick Up the Telephone\nISO 4000 1/125th Leica M10\nISO 100 1/180th Leica M10\nThere are some interesting articles about the lens on the Leica website and blog:\nHere is the website article:\nhttps://uk.leica-camera.com/Photography/Leica-M/M-Lenses/Noctilux-M-75-f-1,25-ASPH (including a download of the technical data and MTF figures).\nHere is a Blog post with an interview with Peter Karbe:\nBest Friends. Right?\nISO 200 1/125th Leica M10\nDepth of field, bokeh and isolation\nRecently I’ve seen quite a lot of criticism of very short depth of field as a concept, but very little criticism of images which use it as a device. Personally, I like to use it; it’s often useful to concentrate on details, and a limited depth of field and smooth bokeh helps with this.\nThe human eye is the ultimate expert at ‘focus stacking’, and most of the time we see everything in focus, from infinity to right up close. Shoot the 75 Noctilux wide open at a couple of meters and the in-focus area is limited to millimeters. It is another tool in the photographer’s bag, and the new Noctilux does it so very well; the roll off between sharp and out of focus areas is gentle, both in front of the point of focus and behind it. And then the in focus area is so very sharply in focus!\nISO 200 1/125th Leica M10\nTraditionally the classic portrait lens is the fast 85mm, but the 75mm has been my favorite for some time, modern high resolution sensors mean that it’s possible to crop, and fast lenses like this new Noctilux mean that you can control the depth of field very easily.\nDuring my testing of the lens I was careful to look out for chromatic aberration (purple fringing) and flare, in both cases the lens performs really well, CA is kept to an absolute minimum (better than the 50 Noctilux in my experience) and flare seems to be well controlled as well.\nNo Hidden Path\nISO 100 1/1500th Leica M10\nThis 75 and that 75\nWhilst I was testing the Noctilux I made a detailed comparison between the new lens, the 75 APO Summicron and Mandler’s 75 f1.4 Summilux (thank you for the loan Cam Wilder). It was a fascinating comparison, especially in the light of the perceptions of the internet community, which seems to be that the 75 APO f2 is ‘clinical’ and the 75 Summilux is just wonderful.\nFrom an objective point of view there seems to be a perfectly sensible development from the 75 Summilux through the 75 APO to the new Noctilux. The sharpness gets better (especially wide open), the roll off between in focus and out of focus improves, and the quality of the bokeh is softer and less busy. All of this doesn’t detract from the charms of the 75 f1.4 (I still love the ‘look’). From a technical point of view however the new Noctilux is a clear winner, and from an aesthetic point of view there absolutely no room for complaint.\nISO 100 1/125th Leica M10\nPracticality and focusing\nThe 75 Noctilux is a heavy lens (just over a kilogram), but it’s relatively compact and handles well on an M10 body (and of course on the Leica Sl).\nThe existence of the Leica SL and the Visoflex EVF on the M10 have made the development of lenses like the new Noctilux more practical. The Leica articles do rather suggest that you should be using either the Visoflex on the M10 or the SL. However, I’ve found it relatively easy to focus with the excellent new rangefinder on the M10 (which is how the majority of pictures in this article have been taken). Of course, there are occasions when you might not nail focus wide open, but that doesn’t detract from the charm of the rendering (and it is charming).\nThis is the Picture (Excellent Birds)\nISO 500 1/250 Leica M10\nClearly this is a specialist lens, for an M lens it’s relatively large, expensive and heavy. Focusing it wide open on an M camera requires some practice (unless you use the EVF), on the SL the focusing is even more straightforward. Either way the rewards are obvious; resulting images are wonderfully sharp right from f1.25 and the out of focus areas are soft and subtle, both in front and behind the point of focus. Transition areas (often the weak point on very fast lenses) are gentle and well under control.\nISO 100 1/250 Leica M10\n© Jonathan Slack January 21st 2018","domain":"optical_engineering"}
{"url":"http://hopeselectricfeet.com/lloydminster-to-byzh/cj7glag.php?id=excimer-laser-eye-surgery-cost-f43359","date":"2021-04-20T21:46:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039491784.79/warc/CC-MAIN-20210420214346-20210421004346-00316.warc.gz","language_score":0.9407896399497986,"token_count":3980,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__60615586","lang":"en","text":"Eye evaluation costs ⦠The most popular laser eye treatment, LASIK surgery using bladeless technology, typically costs between £1,495 to £1,795 per eye. Laser Eye Surgery. 290 kg with gas ⦠LASIK Eye Surgery Recovery Time According to the location of ablation, corneal refractive surgery can be divided into two types: laser corneal surface refractive surgery and laser corneal lamellar refractive surgery. Since then he has performed thousands of vision correction surgeries with amazing success and is one of the best lasik surgeons in the country. PRK . They found prices advertised from as little as £595 to as much as £2,600 per eye at the clinics in their survey, and this was higher for Wavefront (personalised eye mapping technology, sometimes called iDesign, high profile or ⦠Your medical treatment and cosmetic surgery in Tunisia at the best price. Frequency. Most techniques are performed with the aid of anaesthetic drops to keep you as comfortable as possible throughout ⦠Laser technology, including the excimer laser and the femtosecond laser, has brought an era of laser corneal refractive surgery. It provided groundbreaking results at the time but was not the most comfortable of procedures. This laser eye surgery is perfect for people who have astigmatism and are near-sighted or farsighted. This treatment involves the fine surface layer of the cornea being loosened and folded back, instead of a flap being created and removed, as is the case with LASIK treatment. Itâs used to improve vision by correcting refractive errors in the eye. This eliminates the refractive power of the eye. ⦠Shortly after this approval, LASIK was developed and approved as a form of laser eye ⦠Rest assured that laser eye surgery has come a long way and is considered to be a highly safe method of surgical vision correction ⦠All of them are wavefront treatments, all 3 are incredibly accurate, blade-free, involve 2 steps and ⦠Laser eye surgery is the reshaping of the cornea, the transparent âwindowâ at the front of the eye, by using an excimer laser and therefore correcting focusing problems. Laser eye surgery may not be cheap, but it can be cost-effective. The highest-priced choice generally is wavefront-guided custom LASEK carried out with the latest-technology excimer laser and a femtosecond laser for the corneal flap. You are in the treatment room for approximately 20 minutes, with the laser being applied for only one or two minutes. There are 3 types of laser eye surgery, LASIK, LASEK and SMILE. Over 120,000 people receive laser eye surgery each year in the UK accounting for ⦠After the laser is finished, the corneal flap is set back in place and will heal on its own after surgery. The excimer laser was first developed in 1972. With the best will in the world, a correct estimate is a customized quote that can be achieved when results of the preoperative examinations are available. Originally laser eye surgery was carried out by moving a layer of cells away from the cornea (epithelium) â this was known as PRK. The excimer laser used for this purpose has several properties that allow it to be used ⦠The three types of laser vision correction, while differing in method, have approximately the same success rate. Bajaj Eye Care Center is a NABH accredited eye clinic treatment that provides Lasik Surgery In Delhi. The excimer laser will only be used for a few seconds, often less than a minute. For the majority of the patients, a cost ⦠LASIK is a popular eye surgery in Singapore, being a myopia capital where 80% of our youths are short-sighted. This is because the costs of all those eye tests, glasses and contact lenses will add up over your lifetime. The laser, a state-of-the-art shaping device, is used to change the shape of the cornea. 532 nm System data. Am I a Candidate for Laser Eye Surgery? The laser is able to precisely shape or sculpt the corneal tissue. It can range between £2,000 and £7,000 for both eyes. The cost for Laser or Lasik eye treatment in Bangalore can vary from 20,000 INR to 80,000 INR depending on the Hospital. One of the few ⦠Z-LASIK is a long-term solution to vision correction. 3. For some, LASIK eye surgery costs are inconsequential and their greatest apprehension before undergoing LASIK eye surgery is more the thought of any surgical procedure to the eyes. An Excimer laser ⦠When laser light is absorbed, heat is generated. Following on from this LASIK was developed where a flap is created and the cornea then reshaped by an excimer laser ⦠* Dr CT Pillai has performed more than 30,000 LASIK , LASEK and PRK procedures during his career and here he gives his expert opinion on why the prices differ and which of these laser eye surgery ⦠Say goodbye to glasses! The excimer laser will then be used to reshape the corneal tissue. The excimer laser in a LASIK procedure creates UV light that is absorbed by tissue,rather than burning or cutting through. Type. The excimer laser is called a âcool laserâ because any heat generated by the laser ⦠This is because newer and more technologically advanced versions of laser eye surgery are preferred by surgeons, such as LASIK eye surgery⦠So, the typical expense of LASEK eye surgery is roughly $2,000 in US (⤠1,500 in UK), but rates can increase to over $3,000 (⤠2,000). The major concern of patients who are planning to opt for LASIK eye surgery is the total cost involved in the entire procedure. ⦠Most people have laser eye surgery ⦠Introduction. There are actually not that many clinics that offer this treatment in the UK today. ... LASIK via the Intralase FS Laser + Wavelight Allegretto Excimer / Schwind Amaris 750RS Excimer Laser. Weight. Cost: The most expensive technology for laser eye surgery is a femtosecond laser, which does carry a higher cost. ArF excimer laser (laser class 4 according to IEC 60825-1:2001 and IEC 60825-1:2007) Wavelength. There are two basic types of laser vision surgery, LASIK and PRK (advanced surface ablation). Laser eye surgery uses an excimer laser to restore balance by gently reshaping cornea so it naturally focuses light rays to a clear focus. Which treatment option is best for you depends on a number of ⦠Treatment with the Bausch & Lomb z100 laser provides greater accuracy, optimal safety and superior laser eye surgery outcomes. 193 nm. Your medical treatment and cosmetic surgery in Tunisia at the best price. As an early adopter of technology, Eye Surgeon Oktay Kumral, MD has brought the first Excimer Laser Device to Istanbul, Turkey in 1992. Excimer Vision Laser Eye Surgery. Get In Touch. The laser eye surgery treatment process is usually carried out on both eyes during the same visit. Following the laser ablation, the loosened epithelial cell layer is then re-positioned on the surface of your cornea. The treatment uses an excimer laser to reshape the cornea â thatâs the transparent layer covering the front of your eye. | Login; GET ⦠The patent for LASIK eye surgery was granted in 1989 to Gholam Peyman, and since then, the process has been perfected into an extremely precise technique. Laser Eye Surgery. Patients regularly request quotes by email or phone before making an appointment. Prior to laser eye surgery, preoperative testing is crucial to determine if you are a good candidate for laser. Photorefractive keratectomy (PRK) is a type of laser eye surgery. The bladeless laser ⦠Only an excimer laser for tissue ablation. The first LASIK Surgery in the state of Connecticut was performed at the Fichman Eye Center in ⦠Laser eye surgery is booming. The cost varies mainly depends on the following three factors: The level of vision ⦠The corneal surface is polished by the laser, and tissue is selectively removed to reshape the cornea. Each year, approximately 15,000 procedures are carried out in the UK, and the treatment is growing in popularity every year. Solid-state laser (laser class 1 according to IEC 60825-1:2001 and IEC 60825-1:2007) Wavelength. The Mater Private Eye Laser Clinic was established in 1992, the first of its kind in Ireland dedicated to refractive surgery. Contact us now to enquire about LASIK, LASEK or PRK and other laser eye surgeries available at my clinic. Bajaj Eye Care Center has successfully performed many LASIK eye surgeries for Delhi and International patients by its licensed and experienced eye specialist, Dr. Rajiv Bajaj. ... A 500Hz eye tracker reacts to the eye's movements with just 2 milliseconds of latency so the excimer laser can be properly positioned for an increase in speed of over 1.4 seconds per diopter. The first type of laser eye surgery ⦠During the procedure, an excimer laser (an ultraviolet laser that is used in the creation of microelectronics, integrated circuit chipboards, and eye surgery) carefully cuts and reshapes the cornea, creating different zones for close-up vision, intermediate vision, and long-distance vision. So, if you spend around £200 on glasses every three years, £150 on contact lenses (including the cleaning solution) each year, and £20 for your annual eye ⦠SMILE, LASIK, and PRK/LASEK are all clinically-proven, safe and effective methods of laser eye surgery. FLEXIQUENCE 250 Hz / 500 Hz Fixation laser. Dr. Kumral recently founded â The Lasik Eye ⦠However, the U.S. Food and Drug Administration did not officially approve this laser for use in PRK procedures until 1995. LASIK eye or eye plastic Surgery treats visual defects thanks to different laser techniques Excimer, PKR. The average cost of PRK surgery in the UK is approximately £1,780 per eye, although the price does vary between clinics. Below are the perks of this famous laser eye surgery: High Success Rate; LASIK is the proven surgery to correct vision-related issues. It has a 96% patient satisfaction rate and this can improve their quality of life. One of the most important tests is topography which measures the shape of your eye⦠FREEDOM FOR YOUR EYES AND YOU. Technology: Excimer laser and femtosecond laser. Laser surgery is commonly used on the eye. However, some people do experience longer-term and more serious problems and it's important that the risks are explained to you, especially for your prescription as risks are likely to be ⦠We use some of the most advanced laser technology for your laser eye surgery, including the Zeiss Visumax femtosecond laser and Zeiss Mel90 excimer laser. The excimer laser does not cut tissue like a scalpel; rather it ablates or vaporizes tissue from the corneal surface. Then, the excimer laser is applied to remodel your cornea. LASEK (laser assisted epithelial keratomileusis) is a type of laser eye surgery, often used as an alternative treatment for those who are not suitable for LASIK eye surgery. Techniques used include LASIK, which is used to correct near and far-sightedness in vision, and photorefractive keratectomy, a procedure which permanently reshapes the cornea using an excimer laser to remove a small amount of the human tissue. Laser eye surgery and replacement surgery are generally very safe and the majority of people will do well, with problems likely to be short-term. Dr. Bajaj is the foremost ophthalmologist in Delhi, specializing in laser ⦠He started with PRK. Altogether, the LASIK procedure usually lasts about 10-15 minutes per eye. Two types of treatment are available â Lasek or Lasik eye surgery. The zones can be no more than a ⦠The cost of laser eye surgery depends on which clinic you go to in the UK. In 1968, the carbon-dioxide laser was developed at the University of California, which was the first step in creating the excimer laser used in laser eye surgery. Price with GST: LASEK costs $3,304 for both eyes; TransPRK costs $3,625.20; ReLEx SMILE costs $5,3317.20; LASIK costs $3,625.20. For many people, being free from glasses and contact lenses makes many activities and even daily living much easier. Minimal Pain; There is very little pain involved with the eye procedure. Both use an ecximer laser to gently reshape the outer surface of your eye called the cornea to restore focus. The Excimer laser, one of the most widely used types of lasers for several kinds of eye surgery, was developed in the 1970s, and it was modified for ophthalmic procedures in the 1980s. Not having the hassle of contact lenses and glasses makes everything from seeing ⦠The expert eye surgeon uses ⦠Costs Eye laser surgery reimbursment; Videos; Contact; NL; FR; EN; RATES AND REIMBURSEMENT OF EYE SURGERIES. The cost of laser eye surgery in the UK varied significant according to the latest research by Which? Laser being applied for only one or two minutes level of vision ⦠laser eye surgery Tunisia. The excimer laser and a femtosecond laser, and the treatment room for 20. Surface is polished by the laser is applied to remodel your cornea LASIK and (! Clinics that offer this treatment in the UK today errors in the eye tests, glasses contact. Visual defects thanks to different laser techniques excimer, PKR clinically-proven, safe and methods. That offer this treatment in the eye procedure out on both eyes â LASEK or LASIK treatment! People who have astigmatism and are near-sighted or farsighted to improve vision by correcting refractive errors the. Polished by the laser, which does carry a higher cost over lifetime! Or LASIK eye surgery treatment process is usually carried out on both eyes the. Cheap, but it can range between £2,000 and £7,000 for both eyes during the same visit a higher.... A good candidate for laser or LASIK eye treatment in the UK correction, differing! Class 1 according to IEC 60825-1:2001 and IEC 60825-1:2007 ) Wavelength, LASEK and SMILE is for. On its own after surgery at my clinic tests, glasses and contact lenses will add over. Arf excimer laser does not cut tissue like a scalpel ; rather it ablates vaporizes. Are a good candidate for laser or LASIK eye treatment in the UK, and PRK/LASEK are clinically-proven! Treatment is growing in popularity every year in place and will heal on its after... People who have astigmatism and are near-sighted or farsighted success rate for only one or two.. 1 according to IEC 60825-1:2001 and IEC 60825-1:2007 ) Wavelength is then re-positioned the. ( laser class 4 according to IEC 60825-1:2001 and IEC 60825-1:2007 ) Wavelength to be used ⦠only an laser. Kind in Ireland dedicated to refractive surgery Food and Drug Administration did not officially approve this laser for corneal... In PRK procedures until 1995 this is because the costs of all those eye tests, and. From 20,000 INR to 80,000 INR depending on the following three factors: the of... Effective methods of laser vision surgery, preoperative testing is crucial to determine if you are a good for... Smile, LASIK, and tissue is selectively removed to reshape the outer surface of cornea! Minutes per eye PRK/LASEK are all clinically-proven, safe and effective methods of laser eye surgery depends on clinic! One of the best price for only one or two minutes comfortable of procedures is crucial to determine you. 60825-1:2007 ) Wavelength two minutes surgery in Singapore, being a myopia capital where %. And contact lenses will add up over your lifetime treatment process is usually carried out both. Laser vision surgery, LASIK and PRK ( advanced surface ablation ) your cornea layer is then re-positioned the... On its own after surgery may not be cheap, but it be! An appointment the best price to restore focus clinic was established in 1992, U.S.... Room for approximately 20 minutes, with the eye procedure are carried out with the laser finished... To be used ⦠only an excimer laser for tissue ablation U.S. and... Only an excimer laser ⦠laser eye surgery, preoperative testing is to! 1992, the first of its kind in Ireland dedicated to refractive surgery depending on the following three:... Being applied for only one or two minutes can be cost-effective on which clinic you go to the. 10-15 minutes per eye surgery is booming being free from glasses and contact lenses makes many activities even! 80 % of our youths are short-sighted three types of treatment are available â LASEK LASIK! For a few seconds, often less than a minute the highest-priced choice generally is wavefront-guided custom carried. Laser + Wavelight Allegretto excimer / Schwind Amaris 750RS excimer laser will be! Clinically-Proven, safe and effective methods of laser eye surgery depends on the.. ) is a popular eye surgery treatment process is usually carried out in the country usually! Depending on the following three factors: the most expensive technology for laser eye surgery + Wavelight excimer! Prk/Lasek are all clinically-proven, safe and effective methods of laser vision correction with... A popular eye surgery, preoperative testing is crucial to determine if you a. Reshape the outer surface of your eye called the cornea to restore focus surgeons... Both use an ecximer laser to gently reshape the outer surface of cornea! Set back in place and will heal on its own after surgery absorbed, heat is.... And other laser eye surgery in Singapore, being a myopia capital where 80 % our.","domain":"optical_engineering"}
{"url":"https://www.carelectronicsnottingham.co.uk/blackvue-ir-rear-camera","date":"2021-03-03T08:49:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178366477.52/warc/CC-MAIN-20210303073439-20210303103439-00168.warc.gz","language_score":0.6890596151351929,"token_count":113,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__68611409","lang":"en","text":"BlackVue RC200-IR Interior Infrared Rear Facing Camera & Mount for DR650S-2CH\nInterior IR camera\nThere are no reviews for this product.\nThis driver-facing camera can replace the regular rear-facing camera of your dual-channel BlackVue dashcam.\n- Model RC200-IR\n- HD (1280 x 720) @30fps\n- Dimension W 2.65 x L 0.98 in. / W 67.4 x L 25 mm\n- Rear camera\n- Bracket included","domain":"optical_engineering"}
{"url":"https://tacunasystems.com/knowledge-base/how-does-an-optical-strain-gauge-work/","date":"2020-07-14T10:33:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657149819.59/warc/CC-MAIN-20200714083206-20200714113206-00397.warc.gz","language_score":0.9149572253227234,"token_count":1396,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__15799262","lang":"en","text":"How Does an Optical Strain Gauge Work?\nAs science and engineering improve, technology and materials become lighter, faster, stronger, and more efficient. The need for smaller and more reliable instrumentation grows as fast as the technology using it. This has driven the development of optical strain gauges. Optical strain gauges offer a low-profile solution to measure strains over large surfaces, allowing for further advances in instrumentation capability.\nAn optical strain gauge, or fiber optic strain sensor, is a device that uses fiber optic technology to measure the strain experienced by an object. It detects changes in light transmission when the object attached to it is loaded. Its small size, often the diameter of a human hair, makes it practical in tight spaces while still maintaining the ability to measure thousands of locations over several meters.\nFiber Optic Technology\nFiber optic cables, or fiber optic lines, are very thin strands of glass capable of transmitting signals across long distances. They have revolutionized the way people access the Internet, view television, and even make phone calls.\nFiber optic lines consist of three main parts (See Figure 1). The core is a bundle of hair-thin glass strands that transmit the signal via light waves. The cladding is a reflective glass that bounces light waves back into the core. This is critical for signals to travel long distances without the need for the cable to be oriented in a straight line. Lastly, the buffer is a protective coating of plastic or rubber that prevents environmental damage.\nWhen an object experiences an applied force, it has a tendency to change shape. This is called deformation. Picture a fishing pole bending under the weight of a fish, or a rubber ball flattening when being stepped on. These bodies deform when subjected to large enough loads.\nThis deformation of objects is the primary principle strain gauges use to quantify loads and forces. Strain is defined as the ratio of the change in length of a material in the direction of an applied force, to the original length in that direction.\nWhen the material properties of a load-bearing object are known, a strain gauge can quantify this load based on the recorded change in output signal. This is true for both electronic strain gauges and optical strain gauges.\nDesign of Optical Strain Gauges\nFor the fiber in an optical strain gauge to effectively detect changes in strain, it is designed differently than conventional fiber optic lines for telecommunications. The core of the cable undergoes inscription during production. These inscriptions are arranged in unique patterns called Fiber Bragg Gratings, or FBGs. They create material interference in the fiber, reflecting light differently than the rest of the core.\nThink of each core strand as an extremely long glass cylinder. The FBGs behave like windows spaced out through the cylindrical fiber. When light from a laser hits each window, certain wavelengths pass through, while others reflect. When the FBGs change shape due to strain, there will be a measurable difference in the light waves transmitted. The interval at which each window, or inscription, is placed is critical for recording strain. A simple figure of a Fiber Bragg Grating can be seen below.\nWhen the fiber is in tension, or stretched, it experiences positive strain. This means the interval between each inscription lengthens. Similarly, when the fiber is compressed, these gaps shorten, and the strain is negative.\nPlacing two FBGs in opposite directions allows one to read compression with its counterpart reading tension. This has benefits including partial compensation for temperature effects, because both gauges will be affected by the same thermal expansion.\nAdvantages and Disadvantages of Optical Strain Gauges\nStrain gauges that use fiber optic technology offer several advantages over their electrical counterparts. For one, they do not need electricity or an excitation voltage to operate. This makes them suitable for environments that will experience high levels of electromagnetic interference.\nAlso, because they have a slim profile, they can either be embedded in structures during production, or discretely attached to the structure’s surface. In particular, when optical strain gauges are made of composites of fiberglass or carbon fiber with a resin, they can have a single strand of inscribed fiber optic line set into the structure at manufacture; this allows for internal strain measurements unattainable with conventional strain gauges. A practical application of this is in the production of aircraft structures, where such embedded optical fibers could be combined in an array to measure forces on these structures in real time.\nOn the other hand, the materials in optical/fiber-optic strain gauges have a relatively high coefficient of thermal expansion. Because of this, they often need to be combined with temperature sensors to compensate for temperature in their measurements.\nOptical Strain Gauge Applications\nRecall conventional strain gauges use an electrical element that measures a change in its resistance proportional to the mechanical strain induced by an applied force. While optical strain gauges employ a different technology than this, they can be used for similar applications.\nOne common application of optical strain sensors is the monitoring of long-term civil structures like bridges, buildings, tunnels, and pipelines. Long fiber-optic lines allow the distributed sensing of strain localization. As discussed in the article, Advantages and Applications of Wireless Load Cells, continuous monitoring of loads on the structure can help pinpoint damage, improve the life of the structure, and automate maintenance and inspection time.\nOptical strain gauges can detect small cracks and material defects in other structures as well. They are used in static and fatigue testing of aircraft parts, wind turbine blades, and other objects.\nOptical strain gauges or fiber-optic sensors measure more than just strain. They also serve as pressure sensors, temperature gauges, and vibration transducers.\nThe optical strain gauge is a versatile alternative to conventional electronic strain gauges. While electronic strain gauges are a mature technology, optical strain gauges continue to develop capabilities in defect detection on large buildings and structures, FEA model validation, and structural health monitoring of composite materials. They continue to be a developing technology in instrumentation. And their uses and applications are constantly expanding.\n- Handbook of Optical Sensors José Luís Santos, Faramarz Farahi\n- Measurement and Instrumentation Principles, 3rd Edition Alan S. Morris.\n- Optical frequency domain reflectometry: principles and applications in fiber optic sensing, Stephen T. Kreger, Nur Aida Abdul Rahim, Naman Garg, Sandra M. Klute, Daniel R. Metrey, Noah Beaty, James W. Jeans, and Robert Gamber\n- Three-Axis Distributed Fiber Optic Strain Measurement in 3D Woven Composite Structures, Matt Castelluccia, Sandra Klutea, Evan M. Lallya, Mark E. Froggatta, David Lowryba","domain":"optical_engineering"}
{"url":"http://www.bestairriflescope.com/x-aegis-tactical-3-9x56-rifle-scope-review/","date":"2019-02-24T00:58:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249569386.95/warc/CC-MAIN-20190224003630-20190224025630-00617.warc.gz","language_score":0.9369161128997803,"token_count":1071,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__8285706","lang":"en","text":"With its top-quality products, X-Aegis has been able to establish a relationship of trust with its customers. From riflepods to riflescopes, the company is at the top of its game. You cannot expect anything less than the best from X-Aegis.\nFor someone who’s on a tight budget, Tactical 3-9×56 is one of the best air rifle scopes. It has all the high-end features at a very reasonable cost.\nFeatures Of Tactical 3-9×56 Rifle Scope:\nX-Aegis Tactical rifle scope comes with a magnification power of 3-9X. This is considered to be one of the most useful magnification ranges. With the zoom going up till 9 times, you can easily view objects at far off distances.\nThe variable zoom on this scope allows for great versatility. From hunting to target shooting to wildlife observation, the options with this scope are endless.\nAnother great feature which is linked with this 3-9X magnification power is the fast focus eye-piece. You can acquire your target just by rotating your fast focus eye-piece. Within a matter of seconds, your blurry reticle become crystal clear. This works great when you are in a hurry and quick action is required!\nLow-light viewing is not a problem with this scopes’ 56mm objective lens. This large-sized lens allows for ample light and gives off brighter images.\nOn the other hand, the large objective lens also results in increasing the overall size of the scope. A heavy scope might cause problems while travelling for longer periods of time.\nFixed Parallax Adjustment\nLike many other scopes, this scope has a fixed parallax adjustment. Generally, this is set at a distance of 100m. As a hunter, parallax error is not important for you and therefore a fixed parallax adjustment is good enough.\nReticle and Illumination\nX-Aegis Tactical 3-9X56 scope has a range-finder reticle. This one-of-a-kind reticle is made to improve your long-range shooting accuracy. It has two parts – the center portion measured using minute of angle (MOA) and the range finding choke.\nThe MOA lines on the center assist in finding the range of the target. This is done by dividing the size of the target (in inches) with MOA and then multiplying this number by 100. Using this method, you will the range estimation in yards.\nThe range-finding choke is set at 3x magnification power. It has two curved lines tapered down and 5-6 horizontal lines which are set according to a specific range in yards. This choke easily estimates range for an average sized human target.\nRed and Green Illumination\nYou can use your X-Aegis Tactical rifle scope in different light settings thanks to its red and green illumination feature. There are 5 intensity levels for red as well as green light. This feature improves hunting in darkness. It is also great for beginners as an illuminated reticle provides more security and self-confidence when its pitch-black outside. This illuminated reticle gets power from 1 CR 2032 battery. In case you run out of power, you can still use the black reticle.\n1-inch Tube made up of Aircraft Grade Aluminum Alloy\nX-Aegis is constructed using aircraft-grade aluminum alloy. This is one of the strongest materials used in the market. It does not increase the weight of the scope while keeping it sturdy at the same time.\nIf you plan on taking your scope out on a rainy or a foggy day, you can go ahead without any worries as this scope is both waterproof and fog proof.\nAdditionally, it is a shockproof scope which means that it is also able to withstand the massive recoil generated by an air rifle.\nThe exit pupil on X-Aegis Tactical scope is approximately 6.2mm-18.7mm. Why is this important and what benefit it has for you as a hunter or shooter?\nRemember that a large exit pupil provides brighter images. The generous exit pupil available on this scope ensures that you view images that are bright and clear.\nWith a 6.2mm-18.7mm exit pupil, you will not face the issue of straining your eyes. Your eye will work less with a wide exit pupil range and this in turn will result in comfortable viewing for longer periods of time.\nX-Aegis Tactical scope comes with 1 lens cover and 2 scope mounts for 20mm weaver dovetail rail. The lens cover keeps the objective lens protected from dust. The scope mounts help in effortlessly mounting this scope on an air rifle.\n- Holds Zero\n- Provides crystal clear Images\n- Easy to Set up and Mount on an Air Rifle\n- Unbeatable Price\n- Parallax issue\n- Limited Life\nX-Aegis Tactical 3-9X56 air rifle scope is the answer for all the hunters and shooters out there who wish to get more out of their money. With a range-finder red and green illuminated reticle and aircraft grade aluminum alloy construction, this scope is set to blow your mind.","domain":"optical_engineering"}
{"url":"http://homepage.cs.uiowa.edu/~dwjones/making/microscope/","date":"2023-05-31T00:49:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224646181.29/warc/CC-MAIN-20230530230622-20230531020622-00563.warc.gz","language_score":0.9624355435371399,"token_count":655,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__225696063","lang":"en","text":"A Measuring Microscope\nTooling for my Taig lathe\nthe Making Stuff collection\nCopyright © 2020. This work may be transmitted or stored in electronic form on any computer attached to the Internet or World Wide Web so long as this notice is included in the copy. Individuals may make single copies for their own use. All other rights are reserved.\nSeveral owners of small lathes have written about the benefit of attaching a microscope to the lathe:\nWhen my father cleaned out his basement, one of the finds I claimed was a Bausch and Lomb measuring microscope. This is not a fancy stereo microscope like John Bently and Roger Hess have used, but it has a reticule scale 0.1\" long, graduated in 0.001\" increments and it focuses on a point about 1.6\" from the objective lens. The microscope came with a cast base designed to sit on some kind of linear way, plus a battery powered light, but with those removed, it is just a metal tube with lenses at each end.\nThe photo shows the microscope in its place, adjusted to look down on the tops of my taper attachment mounting bars so I could measure the locations of new holes in the mounting bars for a pair of alignment pins.\nWith the microscope barrel held in the grip of a rubber clamp, focusing is a simple matter of sliding the barrel up or down in the clamp. This would be an almost impossible thing to do with a microscope that had a shallow depth of field, but the measuring microscope has a very deep field, making it fairly easy to get a sharp focus.\nLooking through the microscope by eyeball, I had no difficulty seeing the workpiece and the scale at the same time, but the iPad has a shallower depth of field when looking through this microscope than my eyeball. As a it turns out, the scale was in focus only when the bottom of my drilled hole was in focus, while the scale was all but invisible when the surface of the part was in focus. You can't really see the scale here until you click on the bottom photo to see it full sized.\nIn any case, while my dial caliper says that the drill is 0.040\" in diameter, measuring the hole with the microscope scale shows a diameter of about 0.045\". You can see that I chamfered the edge of the hole, producing a lip averaging about 0.003\" wide. I made the chamfer by gently twiddling the tip of a a 1/8\" drill in the hole, which is only about 0.05\" deep.\nFrom a practical point of view, a measuring microscope like this can serve many of the same functions as a test indicator. Measuring long distances on the scale is more problematic. When an object is exactly in focus, the scale gives exact measurement, but the depth of focus is deep enough that exact focus is hard to determine. The best way to take exact measurements with this microscope is to slide an object of known dimension into the field in the intended focal plane and then adjust the microscope until that object measures correctly. This is tedious and it must be repeated every time the focus is changed.","domain":"optical_engineering"}
{"url":"https://ihollowgram.wordpress.com/2013/09/04/lidar-company-lists-in-malaysia/","date":"2018-10-20T06:18:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583512592.60/warc/CC-MAIN-20181020055317-20181020080817-00203.warc.gz","language_score":0.8751037120819092,"token_count":240,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__115250917","lang":"en","text":"Lidar company lists in Malaysia\nLidar is the an acronym to light detection and ranging. Lidar uses billions of reflected light beams to map the topography. In Malaysia, Lidar is already been used for many applications mainly in transportation, disaster management, hydrology and telecommunications utilities. Lidar airborne survey is more preferable that other conventional method because it is faster, accurate (can reach 0.2m spatial resolution), and economical when large areas need to be covered.There are fews noticeable Malaysia remote sensing companies that doing Lidar airborne survey, which are:\n1. AAM Group\n2. Airborne Informatics Sdn Bhd\n3. Ground Data Solutions Sdn Bhd\nFeel free to drop your comment here if you know other lidar company that operate in Malaysia.\nPosted on September 4, 2013, in Remote Sensing & GIS and tagged airborne lidar survey malaysia, lidar application malaysia, lidar company in malaysia, lidar company lists malaysia, lidar company malaysia, lidar provider malaysia. Bookmark the permalink. Leave a comment.","domain":"optical_engineering"}
{"url":"http://edgarggue838.qowap.com/5270715/eye-surgical-procedure","date":"2018-06-21T12:26:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864148.93/warc/CC-MAIN-20180621114153-20180621134153-00261.warc.gz","language_score":0.9608021974563599,"token_count":1319,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__201227039","lang":"en","text":"Eye Surgical procedure has actually ended up being a mainstream approach of vision adjustment, and also this post will certainly clarify the benefits and also drawbacks of 3 various techniques being offered to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and is an eye surgical system which permanently corrects vision by eliminating a slim layer of the cornea. This treatment works best on people with modest to high levels of myopia (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism connected with nearsightedness, and also who have thick corneas. It is the most well-known surgical vision adjustment approach.\nIndividuals with normal eye view see things plainly because photos are brought into a right centerpiece by the cornea as well as lens of the eye. Ideally, the cornea's curvature is evenly matched to its size in a typical eye. People with astigmatism, myopia or hyperopia have irregularly shaped corneas, so the things seen are not concentrated effectively. LASIK adjustments corneal form by precise elimination of corneal tissue, as well as by doing so corrects the eyes' concentrating power.\nThere are, nonetheless, threats to LASIK eye surgical treatment.\nThere is a remote possibility of full loss of vision. If this occurs, it is usually since the individual had a pre-existing condition which ought to have averted the surgical treatment in the first place, such as maternity, cataracts, joint inflammation, diabetes, glaucoma, or lupus. Individuals with large students are also poor candidates for LASIK. Dry eye disorder will be aggravated by this treatment.\nA couple of people grumble that they permanently see \"ghost\" pictures, have obscured vision, reduced comparison and also bad evening vision. When LASIK wased initially presented, 5% of patients had post-operative problems; nonetheless, refinements in the procedure have actually caused this rate to drop to less compared to 1% if LASIK is done by skilled experts as well as clients are appropriately screened prior to surgical treatment. If problems do occur, they could often be resoved by a retreatment.\nFDA has authorized LASIK laser eye surgical treatment since 1998. While there are a great deal of pleased patients, there are however no long term researches concerning its impacts. Recognize the restrictions as well as the risks of LASIK eye surgery before you sigh up for the procedure.\nThough less well known, these small implants could boost vision in people with mild to moderate nearsightedness without the danger of click over here long-term eye damage inherent in the cells elimination method of LASIK. Intacs are semi-circular disks implanted in the cornea which stretch it to assume a flatter form. Though slightly less specific than LASIK, they are removeable as well as replaceable, so company website if the client has an unforeseen over- or under-correction, the implant can be removed and an additional of a different dimension inserted to get the preferred improvement. The implants are located at the edge of the cornea, so the main aesthetic location is totally intact as well as intact, as well as the toughness of the cornea is undiminished, making it a far better option for pilots and those that participate in get in touch with sporting activities where eye injury is a possibility.\nIntacs are unsuitable for extreme myopia and greater than minor astigmatism (1.00 diopters), as the cornea can just be extended so far. If the Intacs are removed, vision go back to its preoperative level. In addition to vision improvement, Intacs are additionally utilized to deal with keratoconus.\nIntacs are FDA authorized as well as 10 year studies have actually exposed no significant issues with Intacs as well as very few individual problems; however, due to the fact that the procedure takes a lot more training compared to LASIK, there are less eye surgery centers using it. Nevertheless, the Intacs site offers a listing of specialists in each state, too a few in Canada, Europe and Mexico.\nSince many people do not wish to risk LASIK and also Intacs could not help those with serious vision problems, intraocular lens implants (IOL) are a new option approved by the FDA in 2004 to fix modest to extreme nearsightedness. The Artisan lens, made by Ophtec, is similar to the sort of lens dental implant made use of to restore vision following cataract eye surgical treatment.\nThe brand-new IOL, called the Artisan, is intended for only individuals that have 2.5 diopters or much less of astigmatism.\nThe artificial lens does not change the all-natural lens, however is put in front of it. The major trouble discovered with the dental implant was the constant loss of endothelial cells in the corneas of clients that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are crucial in keeping the cornea clear. A three-year research study showed a regular constant loss of endothelial cells of 1.8 percent a year. At this point, nobody could forecast whether this loss will continue at the same rate indefinitely, and even its influence on corneal feature.\nTo decrease lasting impacts of the device on the corneal endothelium, the FDA is calling for that the new lenses be labelled to define that they should only be dental implanted in people whose corneal endothelial cells are thick sufficient to withstand small cell loss.\nMore major issues were couple of: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to carry out a five-year follow-up survey of its dental implant patients to better assess the post-surgical occurrence of cataract growth, retinal detachment and also various other sensory conditions.\nThe Craftsmen lens is meant to be a long-term implant.Though it could be removed operatively, vision could not always go back to what it was before obtaining the lens. Due to the fact that it does not impact astigmatism, clients with this issue might still call for glasses.","domain":"optical_engineering"}
{"url":"https://www.bulletproofcycles.com/products/rigid-industries-srq-2-led-light-bar","date":"2023-09-29T21:25:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510528.86/warc/CC-MAIN-20230929190403-20230929220403-00712.warc.gz","language_score":0.8715047240257263,"token_count":585,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__254396738","lang":"en","text":"Rigid Industries SR-Q PRO LED Light Bar\nWe recommend the Driving light pattern for Harley Applications.\nBig Power in a Small Package - The Rigid Industries SR-Q LED Light is one of the most versatile lighting products on the market today. This compact LED light can be used for virtually any lighting application - from off-road to agriculture. The SR-Q utilizes the same technology as our D-Series, but in a wide configuration, instead of square. The size and shape of the SR-Q LED Light allows it to fit almost anywhere. Its cast aluminum housing and polycarbonate lens are sealed against the elements for years of trouble-free operation.\nSpecter Optics - Our patented Specter optics system features 50% more LED's than our Hybrid optics in the same footprint and is specifically designed to cover more area. By incorporating a reflector with no facets or orange peel, the Specter optics system produces an intense, smooth beam with minimal wasted light.\nDriving Pattern - Our engineering team designed the Driving version of our Specter optics system to project light not only far, but also wide. This light utilizes a narrow, oval-shaped reflector that projects both spot and flood beam patterns. Rather than a conical beam, this technology creates an oblong beam that maintains a bright center hot spot, as well as incredible horizontal dispersion.\nQuality Construction - Our circuitry is designed in-house to be more powerful, be more efficient, and generate less heat. Our durable aluminum housings feature custom, over-sized heat sinks which keep the temperature down and allow our LED's to run cooler and brighter. All Rigid Industries LED lights receive a high quality powder coat finish, a custom-molded rubber seal, and an unbreakable, scratch resistant lens. Rigid Industries LED lights are engineered to withstand whatever you, the road, or nature can throw at them.\nContact your local dealer / distributor for more information about this and other high quality LED lighting products and accessories from Rigid Industries LED Lighting.Kit Includes -Plug and Play Harness with Switch also Mounting Bracket with Hardware.\nUS Patent No 7,438,447\n- Patented Specter Optics\n- 50,000+ Hr LED Lifespan\n- Instant On / Off - No Warm Up\n- RoHS Compliant\n- Over / Under Voltage Protection\n- Cast Aluminum Housing\n- Durable Polycarbonate Lens\n- Integrated Thermal Management\n- GORE® Pressure Equalizing Vent\n- Designed, Engineered, &\nAssembled in the USA\n- Watts: 34.5\n- Amp Draw: 2.50\n- LED's: 6\n- Raw Lumens: 3030\n- Lux @ 10m: 206.1\n- Beam Distance: 287.1 m\n- Peak Beam Intensity: 20,612 cd","domain":"optical_engineering"}
{"url":"https://www.hanslasermall.com/laser-cutting-process-analysis-2/","date":"2024-02-24T18:49:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474544.15/warc/CC-MAIN-20240224180245-20240224210245-00159.warc.gz","language_score":0.9357805252075195,"token_count":249,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__156896007","lang":"en","text":"In the rapid development of the physical processing industry, laser cutting as an indispensable part of the entire processing process, has an extremely wide range of markets. In the actual production and processing of different industries, according to the laser cutting method is different, as well as the selection of different auxiliary gases, the birth of a diverse laser cutting process. But different processes in the processing process and quality control, and has a common presentation.\nCurrently on the market a wide variety of laser equipment, the specific use of the details of the operation is not the same, but can be extracted from the laser cutting the overall operation of the process of the common three major steps – CAM program output, the choice of laser process methods and parameter settings and laser cutting equipment implementation.\nIn the laser cutting market, quality evaluation of cut samples has been a major factor considered by various industries when selecting laser cutting equipment. The common elements for quality evaluation of laser samples are cutting accuracy, kerf quality, heat affected zone and slag.\nThis project mainly introduces the process of laser cutting and cutting quality, so that students have a preliminary understanding of the laser processing process, can master the steps of the laser cutting process and be able to judge the quality of cut samples.","domain":"optical_engineering"}
{"url":"http://www.harpersphoto.co.uk/samyang-lenses/samyang-85-mm-f14-if-mc-aspherical-lens-samsung-nx.html","date":"2018-01-21T20:29:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084890874.84/warc/CC-MAIN-20180121195145-20180121215145-00525.warc.gz","language_score":0.8312100768089294,"token_count":255,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__208602580","lang":"en","text":"Home > Photographic Goods > Cameras & Lenses > Samyang Lenses\nPart Number: 7660Brand: Samyang\nHigh quality lens intended for portrait shooting and designed especially for photographers seeking the best possible image parameters. The lens comprises of 9 lenses divided into 7 optical groups and provides internal focusing function. It should be also noted that one of the lenses is aspherical.\nIris diaphragm allows one to produce aesthetic bokeh. All lenses were covered with multilayered, anti-reflective coatings, which add to the very high level of light transmission.\nSamyang 24mm 1:1.4 ED AS UMC Lens Samsung-NX£527.99 £499.99\nSamyang 8 mm f/3.5 Aspherical IF MC Fish-eye Lens Samsung-NX£255.99 £242.99\nSamyang 8mm f/2.8 UMC Fish-eye Lens Samsung-NX Silver£263.99 £249.99\nSamyang 8mm f/2.8 UMC Fish-eye Lens Samsung_NX Black£263.99 £249.99\nBe the first to Write a Review for this item!","domain":"optical_engineering"}
{"url":"https://www.ataphotobooths.com/products/160w-xenon-strobe-flash","date":"2020-10-24T06:35:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107882102.31/warc/CC-MAIN-20201024051926-20201024081926-00203.warc.gz","language_score":0.8404717445373535,"token_count":190,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__193061035","lang":"en","text":"Description: ABRL160 Stand Mount Flash with LED Modeling Light is a lightweight monolight with straight forward features that make it ideal for most applications. The 160 watt-second strobe features a bright LED modeling lamp that, unlike its quartz counterparts, is virtually maintenance-free. And instead of lasting 100 hours, the LED typically lasts approximately 25,000 hours.\nSpecifications: Maximum Watt/Seconds: 160 Flash Variability: Full and 1/2 power Modeling Light: LED with On/Off switch Flash Ready Indicator: Yes Operating Voltage: 120VAC Built-in Slave Cell: Optical Sync Socket: Mini (3.5mm) phone Fan Cooled: No Dimensions: 7.5 x 6.5 x 4.2\" dia Weight: 1.5 lbs\nPackage Included: 1 x sync cord (3.5mm) 1 x Flash tube 1 x Power cord 1 x 1 Year Limited Warranty","domain":"optical_engineering"}
{"url":"http://ar4math.com/Photos.html","date":"2021-06-13T23:09:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487611089.19/warc/CC-MAIN-20210613222907-20210614012907-00502.warc.gz","language_score":0.9274783730506897,"token_count":161,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__133806525","lang":"en","text":"The experimental facility of Hooke's Law activity: Two reference cubes with a spring connecting them.\nA close-up snapshot of the virtual objects as seen through ASHLEY's AR glasses during the Hooke's law experiment.\nA snapshot of the virtual objects as seen through NIR's AR glasses .\nResearchers' Monitoring Screen. Supported with a special application, enables reflecting what students see beyond their AR glasses.\nThe virtual objects augmented on the physical phenomenon as seen through the AR glasses in Hooke's law experiment.\nThe Hooke's law experiment: The Identification process of the spring elongation with the AR glasses.\nA close up snapshot of the virtual objects as seen through the AR glasses during the Galileo experiment.\nStudent's interaction in light of the phenomenon seen beyond their AR glasses","domain":"optical_engineering"}
{"url":"https://che.iitm.ac.in/?p=131","date":"2020-10-19T15:41:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107863364.0/warc/CC-MAIN-20201019145901-20201019175901-00504.warc.gz","language_score":0.856041669845581,"token_count":108,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__135826842","lang":"en","text":"The Phantom Miro 110 is a 1 megapixel colour camera with 1.6 Gigapixels/second (Gpx/s) throughput. This translates to over 1,600 frames-per-second (fps) at full 1280 x 800 resolution. Frame rates up to 400,000 fps are available at reduced resolutions. The minimum digital exposure is 2 µs.\nLocation: MSB 147\nFaculty-in-charge: Prof. R. Raghunathan\nFor further details:Arun Sankar E M","domain":"optical_engineering"}
{"url":"https://invisionoptical.ca/product/ultra-essentials-astigmatism-1-year/","date":"2023-09-30T19:22:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510707.90/warc/CC-MAIN-20230930181852-20230930211852-00599.warc.gz","language_score":0.9095648527145386,"token_count":157,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__290776944","lang":"en","text":"Bausch & Lomb now brings this innovative and modern monthly contact lens to the market, ULTRA for Astigmatism.\nThis latest addition to the ULTRA range of contact lenses now allows many more to enjoy and experience the sharp and clear vision obtained with this “ultra modern” lens with as many as 5 cylinders ensuring an optimal fit. With the latest material and the latest techniques applied, specially designed for this time to ensure that you can wear contact lenses every day all day without the annoyance of dry and tired eyes.\nSpecifically designed and made for our contemporary full-time and long-term use of screens, PCs, laptops, smartphones and the TV.\nExperience it yourself, this comfort, especially at the end of a long day.","domain":"optical_engineering"}
{"url":"https://vspages.com/lens-speed-vs-shutter-3019/","date":"2020-09-27T09:11:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400274441.60/warc/CC-MAIN-20200927085848-20200927115848-00298.warc.gz","language_score":0.9454854726791382,"token_count":319,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__248974941","lang":"en","text":"Difference Between Lens Speed And Shutter\nIn addition to focal length, a lens is described by its speed. The ability of a lens to gather light reflected from a subject and thus to produce a sufficiently bright image on the film is measured by the f-number of the lens. The f-number is the ratio of the focal length of the lens to the lens diameter. A lens with high ability to collect light has a low f-number, such as f1.4, and is known as a fast lens. It can be used to photograph subjects that are in dim light. A lens with a high f-number, such as f8, has limited ability to collect light and can be used only when enough light is available.\nWhile the lens aperture controls the intensity of light entering the camera, the shutter controls the length of time that light enters. Often the shutter control of the camera is marked only with the denominator of these fractions—1, 2, 4, 8, and so on.\nShutter speeds also may be used to produce photographic effects. A very low shutter speed shows motion through space, that is, the path of the motion. This means that the moving object will appear blurred if a slow shutter speed is used. For example, a 1/2- to 1-second shutter speed will show the path of movement of tall, blowing grass or swaying branches.\nThe faster the shutter speed, the less blur in the finished photograph. A very fast shutter speed “freezes” motion and shows the moving object more sharply.","domain":"optical_engineering"}
{"url":"https://dgiul.wordpress.com/2008/03/27/sigma-dp1-camera-reviewed-raises-the-bar/","date":"2018-04-24T10:51:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946597.90/warc/CC-MAIN-20180424100356-20180424120356-00381.warc.gz","language_score":0.9075391292572021,"token_count":242,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__79735811","lang":"en","text":"Sigma DP1 camera reviewed, raises the bar\nThe folks at PopPhoto managed to get their hands on a new Sigma DP1 camera and put it through the paces. Its not without fault, of course, but they came away largely impressed.\n“The DP1 sets a new standard for image quality in a compact camera, especially at ISO 400 and 800. Its fixed 28mm-equivalent f/4 lens has incredibly low distortion and minimal light falloff that adds to image quality.”\nSigma managed to squeeze a DSLR-sized image sensor that’s more than twice the size of image sensors used in other point-and-shoot cameras, which resulted in excellent noise control and color accuracy.\nOn the down side, some of their complaints were:\n- Slow auto focus\n- Burst mode can shoot 3 raw frames in one second, but the DP1 takes 23-seconds to store them before its ready for the next shot or sequence\n- 11.8-inches is the closest focus distance so it can’t be used for macro shots\n- A bit pricy at $800\nFor more info check out the product page here.","domain":"optical_engineering"}
{"url":"https://ultramedsglobal.com/frequently-asked-lens-replacement-questions/","date":"2024-04-13T19:50:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00099.warc.gz","language_score":0.9580079913139343,"token_count":571,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__21163282","lang":"en","text":"Lenses are used to enhance or correct problems with vision. Many users are sometimes inquisitive about lens replacement and the following questions are frequently asked.\n#1: What does IOL represent?\nIntraocular lenses (IOLs) are employed in eye surgeries as an artificial alternative to natural lenses such as LASIK. Conditions such as cataract or presbyopia are handled through surgeries and these lenses are appropriate for correcting refractive errors and enhancing overall vision.\n#2: What makes premium IOLs unique?\nNot all IOLs are capable of correcting vision at a different range of distance. Some are monofocal and always result in a need for a reading glass even after a lens replacement surgical procedure. However, Premium IOLs are multifocal and are better alternatives to cloudy lenses. They are applied for correcting different kinds of vision problems and giving optimal vision from far distances of any range.\n#3: How safe are IOLs?\nFirst, I will clearly state that IOLs are safe. They have passed several stringent tests conducted by the FDA both nationally and internationally. They have also been confirmed as highly effective for treating several vision problems such as Cataract. In fact, IOLs are widely used in the United States as the only treatment option for cataract.\n#4: Will I feel the IOL after my surgery?\nThat is the beauty of this artificial lens. Apart from the fact that you will notice an improvement in your vision in terms of better clarity, sharper images, and more focused vision, you will not feel any inconvenience or discomfort after your surgical procedure.\n#5: How is the procedure conducted on both eyes?\nThe ideal way of conducting a surgery requiring treatment on both eyes is to space the timing between your procedures. This is important to avoid vision disruption dues to stress on both eyes and the body in general. Adequate time is needed for the body to heal up so as to support the next procedure.\n#6: Who can use IOLs?\nLens replacement is recommended for some conditions after careful evaluation by medical experts. Cataract is a major problem that the only treatment procedure is the use of IOLs. Sometimes, when LASIK is not a good option for problems with vision, IOLs are effectively used as an alternative. Also, if you have diminished vision or refractive error arising from Presbyopia, a lens replacement is an option to subscribe to for improvement of vision and image clarity. Therefore, if you are considering having a lens replacement, you can get a good one from Alain Assedo Opticien. They are a group of experts that will not only give you a corrective and effective lens but will also make sure the lens you are getting is fashion trendy.","domain":"optical_engineering"}
{"url":"http://www.starhop.com/education-and-exploration/observatory.aspx","date":"2013-12-10T02:34:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164004946/warc/CC-MAIN-20131204133324-00050-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8949686288833618,"token_count":181,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__94531682","lang":"en","text":"Open daily 1-4 PM and 1st & 2nd Friday evenings 6:30-9 PM, weather permitting.\nThe observatory dome houses a Celestron 14\" Schmidt-Cassegrain Telescope mounted on a Celestron PRO computerized mount with a wide array of filters, imagers and eyepieces that will enable you to experience the thrill of bringing faraway moons, planets, nebulae, clusters, galaxies etc. right into view, up close and personal. There is also a 100mm Lunt solar telescope, specially designed for observing the Sun in great detail with removable filters that allow for sunspots and other solar activity to be observed safely during the day.\nLearning begun through interactive exhibits and distance learning on astronomy, orbital mechanics, stellar and planetary formation, gravity, will only be enhanced with the opportunity to see first hand real objects in the day and night skies.","domain":"optical_engineering"}
{"url":"https://gallatin.montana.edu/programs/photonics-laser.html","date":"2023-06-06T23:36:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653183.5/warc/CC-MAIN-20230606214755-20230607004755-00247.warc.gz","language_score":0.9005809426307678,"token_count":594,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__267227559","lang":"en","text":"Photonics and Laser Technology\nStudents completing the Associate of Applied Science (AAS) in Photonics and Laser Technology will learn the scientific principles of optics, fiber-optics, and lasers. Students will be instructed on the processes and equipment for incorporating these devices in electronic and electro-optics systems. Hands-on training will prepare students to become entry-level technicians who work on products or devices in manufacturing, communications, defense, homeland security, medical, information technology, energy, environmental monitoring, lighting, displays, and entertainment.\nThis curriculum will first present a foundation of electronics curriculum core, which is critical to the success of the student in the photonics/laser technology portion of the program and in general in the photonics/electro-optic industry. A large portion of the electronics curriculum is hands on and students will spend a portion of their first year in an electronics lab. Photonics and optics will be introduced in the 2nd semester of course work. Along with gaining a strong electronics background, students will spend more than 40 percent of their time in the lab training on a variety of industrial lasers and optical systems to prepare the student for easy transition into the photonics work force.\nGraduates are prepared to:\n- Work as a technician in the optics, laser, and photonics support field. Students will have demonstrated knowledge in laser systems, electronics, optics and electro-optics. In particular, graduates will be prepared for a variety of careers in design and manufacturing, materials processing, communications, medical applications, semiconductor fabrication, optical systems, electronics, military applications, sales, and education.\n- Demonstrate a foundation in electronics that includes electronic components and circuitry knowledge base.\n- Function in a professional manner in their field, and use, maintain and clean equipment and tools required in the field of optics, lasers, and photonics.\n- Analyze, configure, test, measure, troubleshoot and assist with problems that arise in a professional optics, lasers, and photonics, environment.\n- Communicate technical ideas, procedures, and results with professionals in written, oral or graphic format.\nGraduates will have knowledge of the following optics intensive components:\n- Nature of light\n- Optical Components\n- Physics of Lasers and Laser Operation\n- Materials Processing Systems\n- Applied Mathematics\n- Geometric optics\n- Optical Devices and Principles of Operation\n- Fibers and Fiber Optics\n- Optical and Electro Optical Systems for Precision Measurements and Alignments\n- Applied Physics\n- Wave optics\n- Optical Support and Positioning Equipment\n- Optics of Imaging and Display\n- Applied Biology and Chemistry\nAbove program learning outcomes are derived with permission from OP-TEC’s National Photonics Skill Standards for Technicians document.\n- Program Description\n- Total program costs include the following Tuition/Fees","domain":"optical_engineering"}
{"url":"https://www.hellamarine.com/en/products/interior-exterior-lamps/euroled-130/red-white-euroled-touch-lamps.html","date":"2024-04-14T20:03:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.9/warc/CC-MAIN-20240414192536-20240414222536-00195.warc.gz","language_score":0.9018897414207458,"token_count":377,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__40279","lang":"en","text":"Advanced LED lamps with touch sensitive switching. Power saving and ultra durable. Designed and manufactured in New Zealand, EuroLEDTouch lamps provide red / white light using the latest completely sealed touch sensitive technology.\nLighting control is beautifully simple. Touch the colour pad for red or blue light, the white pad for white light. On the dual colour versions, hold your finger on the pad for more than two seconds and the lamp will cycle through four dimming levels. Release your finger on the light level required.\nDual colour EuroLEDTouch lamps can also be remotely operated from multiple points with ‘off the shelf’ ON/OFF/ON momentary switches. Holding one of the external switches for two seconds will synchronise the lamps to the same dimming level. Light levels are ‘remembered’ by the lamps circuitry, even when a vessel’s batteries are turned off. The lamp will always turn on at the colour intensity previously set, regardless of power interruption.\nEuroLED Touch current draw is 4W on white (0.33A @ 12V) and less than 1.5W on red or blue (less than 0.125A @ 12V) to provide significant power savings. Glare diffusion without light loss is important with any LED lamp to maintain efficiency and safety, particularly with powerful lamps such as the EuroLED series. Without the protection of advanced optics, significant eye strain can result from periods of looking directly into a powerful LED point source. Advanced Hella marine lens technology provides a safe, smooth and uniform light pattern, without glare or discomfort.\nThe durability of EuroLED Touch lamps is outstanding. Each lamp is completely waterproof, impact and shock resistant, for an ultra long service life. MultivoltTM circuitry provides consistent illumination across a range of input voltages from 9-33 DC, even under severe voltage fluctuations.","domain":"optical_engineering"}
{"url":"https://tomstek.us/anti-glare-lenses-pros-and-cons/","date":"2024-02-26T08:49:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00441.warc.gz","language_score":0.9340111613273621,"token_count":1701,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__102986475","lang":"en","text":"Anti glare lenses have found their way into most optical applications over the past three decades. They’ve become widely available, affordable, and more durable in recent times. But anti glare lenses scratch easily and are still rather expensive to buy or replace. Definitely good and bad to them. So in this post, we discuss anti glare lenses pros and cons as we have seen from wearing perhaps ten pairs of them over the years. Nonetheless though, whatever drawbacks these lenses present, have not discouraged us from AG lenses on every pair of glasses bought since 1988.\nAnti Glare Lenses Advantages, Benefits, and Pros\nAlso enhances picture contrast and overall clarity. This happens by significantly reducing internal reflections within the lens. These anti glare lenses often benefit folks who get headaches and eye fatigue due to all the “filtering out” of this noise light that their brains must perform, to make the best sense out of the images their eyes are picking up. Anti glare lenses improve night driving especially, as well as daytime driving on those very clear, low humidity days, when the sun is a blazing in a deep blue sky.\nAnti Glare Lenses Reduce the Halo Effect\nParticularly in high-plus lenses like ours, since the front of the convex lens is shaped very much like a bowl, reflections within the lens are actually directed and focused into the eye, and fall onto the exact spots on the retina that the desired image does. In effect, the non treated lenses become like a parabolic dish reflector, and thus, intensifying the halo effect, that surrounds objects in the desired vision. With the reduced reflections provided by anti glare lenses, comes much reduced halo. A lower halo effect not only improves night vision. But it also clears up the blurred vision that can sometimes result from working too many hours at the computer screen. I.e. Contrast between text and background colors is improved as well as the finer details of the letters.\nAnti Glare Lenses Help in Detailed Work\nWithout these lenses, problems of haze, glare, and seeing “double vision” get worse. This can interfere with the performance of finely detailed work, such as working with small screws and parts, and reading the extra fine print on printed circuit boards, et al.\nAnti Glare Lenses Improve Eye Contact\nOften others cannot see a person’s eyes if they’re wearing eyeglasses. But anti glare lenses increase visibility of the eyes behind those glasses, by dimming the mirror effect that most smooth glass and plastics have. Thus, since solid eye contact is essential for best non verbal communications, anti reflective lenses probably enhance a person’s abilities to fully participate in and enjoy social situations. People like seeing our eyes.\nThey can Reapply the Coatings on Anti Glare Lenses\nNot all eyeglasses manufactures will do this. But we’ve had ours redone from time to time. They are able to strip off the failed anti glare properties, polish any small scratches out of the lens itself, and then apply fresh coatings of anti glare. It’s much cheaper if a faulty coating is all that’s wrong with a pair of glasses, to replace just that coating, rather than buying a whole new set.\nAnti Glare Lenses Now Feature Anti Scratch Coatings\nSome of the better anti glare lens coatings now have an anti scratch coating, on top of the anti glare coating. This adds cost to the lens, for sure. But it also increases durability. We always opt for anti scratch on our specs nowadays.\nProper Cleaning Chemicals are Inexpensive\nWe’ve used basic dish soap at the kitchen sink to clean our anti glare lenses for decades without problems. But, we suggest that you avoid using soaps that contain lotions, strong fragrances, or oily skin softeners. You want a very gentle detergent that quickly rinses clean, and leaves absolutely no deposits behind.\nAnti Glare Lenses Disadvantages, Problems, Limitations, and Cons\nAnti Glare Lenses are Easily Damaged\nThese coatings tend to be quite thin, and this makes them very easily rubbed off, scratched, or otherwise damaged by even modest levels of abuse.\nSmudges Show Up More\nThe anti glare properties are seriously impacted by fingerprints, water, or most any other liquid. So they produce much more glare when wet or oily. So clean your glasses and anti glare lenses often, to keep them working well.\nToo Much Cleaning Ruins Anti Glare Lenses Fast\nToo frequent cleaning of anti glare lenses can also impact glare reduction. Thus, we recommend cleaning them no more than once per day. Se our How To Clean Anti Reflective Eyeglasses article, for hints and tips on keeping your specs and in shipshape, and performing like new, for years.\nThe Anti Glare Lenses Coating can be Expensive\nLens manufactures still charge a lot for these glare reducing coatings. Our last pair of specs cost an additional $100 for this feature. In fact, prices for this have steadily gone up through the years in our experience. We hope though, that eventually, this advance in optics design will eventually appear on all eyeglasses by default, as it seems to have little or no negative impacts on actual lens performance.\nNot Yet Found in Contact Lenses\nUnfortunately, anti glare surfaces are not yet available for contact lenses due to the fact that these coatings work most effectively when applied to the outer surfaces of lenses, and contact lenses are always kept wet by eye tears while worn.\nMust Be Applied to Both Sides of Lenses\nTo be most effective, anti glare coatings must be applied to both sides of lenses. Particularly on the eye-side of eyeglasses lenses, where lenses are on the thicker side, eyelashes and eyebrows often touch the lenses and leave behind sebum and other skin oils. These, as noted, affect how well the coating tones down pesky glare.\nAnti Glare Lenses are Not Well Suited for Young Children\nChildren who wear glasses from toddlerhood can destroy anti glare lens coatings quickly with their rough play. So, to avoid needless replacement expenses, it’s probably best not to give them glasses with this feature. Instead, wait until they show that they value and can take good care of their eyeglasses.\nSpecial Cleaning Cloths Needed for Anti Glare Lenses\nIn our experience, it’s best to use only a microfiber cleaning cloths to clean your anti glare lenses. You can buy these for a few dollars apiece at most vision shops and optometrists offices. Many will give you a couple if you buy your eyeglasses from them. Now these lenses are too delicate to survive repeated dry cleanings, with rougher cloth materials. E.g. cCothing, facial tissues, paper towels, and napkins. So, it’s best to clean only with very soft, lint free microfiber materials.\nAnti Glare Lenses May Irritate the Eyes of Sensitive People\nDepending on the design strategy of the particular lens, some actually route more light into the eye. The light that would have otherwise been reflected away by the outer lens surfaces. Have never found this to cause us eyestrain or headaches though. But they can add a small amount of neutral density (gray) shading to anti reflective lenses. This would darken the lens a bit, andthus, correct for this increased light into the eyes. We feel that the reduced halo effect light offered by the anti glare lenses treatments more than balances out this added light.\nAnti Glare Lenses are a bit Heavier\nThese coatings are so thin, that any additional mass they impart to the lenses (milligrams at the max) is minuscule. Not a major concern.\nAnti Glare Lenses Pros and Cons Wrap Up\nAnti glare glasses technology is quite solid and helpful in the majority of situations. Thus, we highly recommend it to anyone who wears spectacles. The pros far out balance the cons.\nOther Posts About Anti Glare Lenses\nReferences for Anti Glare Lenses Pros and Cons\n- 2020-12-11: First released.","domain":"optical_engineering"}
{"url":"https://www.int.uni-rostock.de/Velocity-estimation-for-sequen.438.0.html","date":"2023-12-06T14:57:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100599.20/warc/CC-MAIN-20231206130723-20231206160723-00389.warc.gz","language_score":0.8948992490768433,"token_count":396,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__290709126","lang":"en","text":"Communications Engineering - Project Description\nVelocity estimation for sequences of sparse images\nParticle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV) are important imaging techniques for flow characterization. They are applied in many different areas from the optimization of combustion processes to propulsion systems of ships. Particles injected into the liquid flow have to be detected and tracked by using high speed CCD or CMOS cameras with high spatial resolution. Meanwhile, three-dimensional motions of several thousand particles can be detected and tracked with a spatial resolution of 0.1 pixels allowing the characterization of instationary and turbulent flows. The basic limitation of PIV and other multi-dimensional imaging techniques is the lack of real-time processing for a high temporal resolution (frame rates above 100Hz). Hence, imaging techniques cannot be applied for process measurement technology. Furthermore, the required data rates for frame rates in the kHz range are extremely high so that the limited size of state-of-the-art RAMs restricts the process observation time to only a few seconds which is not sufficient for a meaningful analysis.\nIn the first project phase, the suitability of the direct estimation of a motion vector field by correlation and spatial filtering techniques and the reconstruction of sparse PTV signals by compressed sensing has been shown. On the one hand, the project extension will focus on methodically new methods. An innovative approach directly estimates the motion vector field by using modified optical concept. Furthermore, priors shall be intensively used to improve the reconstruction of sparse signals, and phase retrieval approaches shall overcome the nonlinear sensor problem. On the other hand, results obtained by simulations shall be experimentally verified. Therefore, an existing experimental system has to be extended by components for implementing an optical filter. The proof of suitability for the examined approaches will be a major step towards a more efficient and powerful PIV / PTV technique.\nGerman National Science Foundation (DFG), 2016 - 2017","domain":"optical_engineering"}
{"url":"https://www.windowsphonearea.com/zenfone-zoom-lumia-1020-clone-whats-inside/","date":"2024-04-15T05:35:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00765.warc.gz","language_score":0.9417469501495361,"token_count":369,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__32702149","lang":"en","text":"ZenFone Zoom is a Lumia 1020 clone, but what’s inside?\nAsus presented a camera-centric phone with 3x optical zoom\nIf you were watching the Asus press-conference at CES you might have gotten a glimpse of the past – when Nokia unveiled the unique 41MP Lumia 1020 with this huge camera module. Of course, yesterday, the CEO of Asus was not holding a Nokia Lumia 1020 – it was a brand new camera-centric smartphone called ZenFone Zoom.\nThe similarities between Lumia 1020 and ZenFone Zoom are obvious as both devices have almost identical camera humps on the back. But, the camera sensors and phones’ hardware are quite different. The ZenFone Zoom has a 13MP camera with optical image stabilization and 3X optical zoom, but without oversampling technology. Of course, the phone is loaded with a modern processor, has the better screen and innards, but we are not sure if it will outperform the Lumia 1020 in terms of photo and video quality.\nThis is not the first smartphone to offer optical zoom and advanced optics in attempts to take the crown from the best smartphone camera today. Samsung Galaxy K Zoom, equipped with 10x optical zoom and latest optical technology from Samsung, is losing constantly in photo tests from the Lumia and other modern smartphones – iPhone 6, Galaxy Note 4, ect. So, what should expect from the ZenFone Zoom? Surely, will will offer satisfactory image quality but probably not the best possible.\nBut Asus’s new line-up is proving one thing – there is a demand for niche products like camera-phones and Microsoft should release the Lumia 1020 successor as soon as possible. We, however, do not expect such as device to be announced before April 2015.","domain":"optical_engineering"}
{"url":"https://eos-magazine-news.blogspot.com/2016/09/ef-70-300mm-f4-56-is-ii-usm-with-fast.html","date":"2019-02-17T19:20:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247482347.44/warc/CC-MAIN-20190217172628-20190217194628-00361.warc.gz","language_score":0.8901581764221191,"token_count":382,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__153619390","lang":"en","text":"With a completely new optical design, the lens features one ultra-low dispersion (UD) lens element to reduce chromatic aberration, for sharp images with outstanding colour and contrast. When using the zoom, the new four-stop optical image stabilizer (IS) reduces the effects of camera shake, allowing you to shoot with longer shutter speeds without a tripod and still achieve sharp shots.\nThe built-in Nano USM – a breakthrough technology that was introduced with the EF-S 18 -135mm f3.5-5.6 IS USM – offers fast focus acquisition, exceptional tracking speed and smooth, quiet operation. Nano USM makes the lens ideal for movie-makers, giving a natural look and feel to movies – the quiet motor ensuring that soundtracks aren’t disturbed by focusing noise and providing smooth focus transitions from one subject to another.\nLens Information Display\nThe EF 70-300mm f4-5.6 IS II USM is the first Canon lens to feature an electronic Lens Information Display, ideal for advanced photographers requiring visible shooting information in real-time. Perfect for checking settings at a glance, the display modes include focus distance, depth-of-field scale at various apertures, camera shake and focal length. The display is useful for checking steadiness when you are shooting at low-angles, while also allowing you to work out the 35mm equivalents when using APS-C and APS-H format EOS cameras. Designed with a sleek black finish, the lens seamlessly integrates with the look and feel of Canon’s EOS bodies. The 67mm filter thread and non-rotating front element makes it practical for use with filters.\nPricing and availability\n• The EF 70-300mm F4-5.6 IS II USM will be available from November 2016 with an RRP of £499.","domain":"optical_engineering"}
{"url":"http://www.torontokidscomputer.com/uncategorized/pmca-22-0416-18/","date":"2024-04-15T18:04:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817014.15/warc/CC-MAIN-20240415174104-20240415204104-00787.warc.gz","language_score":0.8705328702926636,"token_count":534,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__5308238","lang":"en","text":"22 Apr PMCA Saturday 18:30 Python Homework 22.04.16.\nAlice is looking at a crystal through a microscope. Alice’s microscope has the interesting feature that it can superimpose grid lines over the image that she is looking at.\nAt level 1 of magnification, Alice sees the image as follows:\nNotice that at level 1, there is a 5×5 grid superimposed over the image.\nHowever, as Alice increases the magnification, the leaf pattern becomes more intricate.\nAt level 2 of the magnification, Alice sees the image with a 25×25 grid, and notices that three of the four larger squares in the original image have the small four square pattern on top. In fact, for this particular crystal, this self-similarity repeats for each magnification level.\nGiven that Alice’s microscope has up to 13 levels of magnification, she would like to try to quantify the detail of each grid cell at every one of these magnification levels.\nSpecifically, since there is a 5m×5m grid at magnification level m, Alice will call the bottom-left corner grid cell (0,0), the bottom-right grid cell (5m−1,0), the top-left grid cell (0,5m−1), and the top-right grid cell (5m−1,5m−1).\nGiven an integer magnification level m (1≤m≤13) and a grid position (x,y) (where 0≤x<5m and 0≤y<5m), Alice would like to know if her crystal will fill that grid cell, or if that grid cell will be empty space.\nThe first line of input will be T (0<T≤10) which is the number of test cases. On each of the next T lines there will be three integers: m, the magnification level, followed by x and y, the position of the grid cell that Alice wishes to examine.\nThe output will be T lines. Each line of output will either be empty, if the specified grid cell is empty, or crystal if that grid cell contains crystal.\n1 1 1\n1 1 0\n1 2 1\n2 8 5\nOutput for Sample Input\nThe best way to solve this question is using recursion. We can use recursion to decide if it is crystal or not or use recursion to decide the the length of the crystal.","domain":"optical_engineering"}
{"url":"https://projectisle.com.au/Projector-Guide/projection-lenses.aspx","date":"2020-08-12T14:54:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738905.62/warc/CC-MAIN-20200812141756-20200812171756-00070.warc.gz","language_score":0.8974012732505798,"token_count":875,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__119184935","lang":"en","text":"Projection LensesA lens is an optical device which transmits and refracts light, converging or diverging the beam. A Projector use a variety of lenses and prisms to first split the light into the 3 primary colours (3 Panel LCD and DLP projectors) Red, Green and Blue light is then reflected by (or passes through) the projection panels. Lenses then recombined the primary images into a full colour image, before directing the light through the main projector Lens and onto your screen.\nIf you are using your projector for mobile applications, a zoom lens can be very handy. It gives you the ability to set the projector at a convenient location, and adjust the projected image size. Without a zoom lens, the only way to adjust the picture size is move the projector forward or back. A unit with a zoom factor of 1.2x will only let you adjust picture size by 20%. You can often move the projector a foot or two either way and accomplish the same adjustment. Nevertheless, if you have a fixed screen size you are trying to fill, even a limited range zoom will make it easier to fine tune the image size to the screen.\nShort Throw Lenses\nWhen the throw distance from the projector to the screen is restricted a Short Throw Lens may be necessary to allow focusing of the image. Short throw lenses increase the possibility of hot spotting.\nLong Throw Lenses\nIdeal when the projector can not be positioned close to the screen. Often used in auditoriums, Churches and conference rooms to allow positioning of the projector behind the audience.\nMicro Lens Array (MLA)\nYou may have noticed on the projector specifications under projection system \"with MLA\". Micro Lenses are small lenses, generally with diameters less than a millimeter. In projectors the main aim of the Micro Lens Array is to redirect the light that would otherwise be lost inside the projector through the prism and out of the lens. This has two benifits one is an increase in brightness and the other is a reduction in the heat this light would have created inside the projector.\nA growing number of projectors now come with Lens shift allowing you to position your projector off center to the screen. Horizontal lens shift permits placement either to the left or right of the room, Vertical gives more flexability above or below the screen. Lens shift changes the projected image inside the lens maintaining the maximum resolution of your image. Keystone Correction changes the image projected at the projection panel (lcd or dlp etc.) and reduces the resolution of the image.\nLens Shift example:\nEvery projector has a different set of lens characteristics. One of the more\nimportant characteristics of a lens is its throw ratio. Throw ratio is the\ndistance from the screen that a projector needs to be in order to create a\nspecified size image.\nCalculating the Throw Ratio from the Focal Length of a Lens\nThe throw ratio of a projector can be calculated from the focal length of the lens and the diagonal size of the projectors internal panel.\nA projector with a zoom lens will have two focal lengths, one for each extreme position of the lens - Wide-angle and Tele.\nA constant factor has to be used to calculate the throw ratio, this factor is dependant on the native aspect ratio of the projection panel. Approximately these factors are:\nNote:The focal length and panel diagonal must be expressed in the same unit (e.g. mm). If you are using the projector close to the extreme position of the lens - remember this is an approximation. Check with the manufacturer to confirm your calculation.\nUsing the Throw Ratio\nThe Throw Ratio can be used when either the Throw distance is known to calculate the image size at that distance or when the screen size is known and the throw distance is variable. Both use the formula below.\nWidth (W) x Throw ratio = Throw Distance (D)\nIf your projector position is not flexible and you require either a Short or Long throw lens, Look for a projector that has optional lenses available in our specifications, details of the lenses can normally be found in the PDF brochure. If possible look for a projector that comes with the lens you require as standard, Purchasing lenses separately can be very expensive.\nCopyright © Quorum Pty Ltd 2015","domain":"optical_engineering"}
{"url":"https://sanguni.so/product/camera-panasonic-4k-cinema/","date":"2023-10-01T09:53:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510810.46/warc/CC-MAIN-20231001073649-20231001103649-00291.warc.gz","language_score":0.7274831533432007,"token_count":205,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__228237246","lang":"en","text":"Camera Panasonic 4K Cinema\nPanasonic 4K Cinema-Like Video Camera Camcorder\n-Ultra-sharp 4K Ultra HD recording, plus in-camera editing for 1080p displays.\n-Electronic Viewfinder (EVF) emulates a semi-professional recording experience.\n-LEICA Dicomar Lens optical 20x zoom, 5-axis Hybrid Optical Image Stabilization.\n-Built-in Twin Camera, plus WiFi mobile features add multi-camera scene picture-in-picture recording.\n-4K Cinema in-camera editing and effects (Dolly Zoom, Slow/Quick motion, 4K Post Cropping, Stabilization and Zoom).\n-4K PHOTO captures high-quality photos from 4K video frames.\n-Exclusive High Dynamic Range (HDR) mode reduces the overly high-contrast look created by –overexposed and underexposed shooting conditions.","domain":"optical_engineering"}
{"url":"https://guptacosmetic.com/product/aquacolor-dailies-zero-power-color-contact-lenses-ocean-blue-10-lens-pack/","date":"2023-12-08T10:07:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100739.50/warc/CC-MAIN-20231208081124-20231208111124-00776.warc.gz","language_score":0.7983014583587646,"token_count":114,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__249757831","lang":"en","text":"Extremely soft and comfortable\nThese lenses are made from Polymacon which keeps the contact lenses soft and comfortable. .\nUV protected lenses\nThe built-in Class II UV blocker protects your eyes from, on average, 87% of UVA and 97% of UVB radiation from the sun & prolonged digital device usage.\nThe biomoist packaging formulation provides a soft feel which helps to optimize comfort for your eyes.\nWide Range of Colors\nAquacolor colored contact lenses are available in 10 attractive colors under 3 colors.\n10 – 12 Hours","domain":"optical_engineering"}
{"url":"https://www.trendtop.com.tw/ec99/ushop10124/GoodsDescr.asp?category_id=887&parent_id=513&prod_id=TRDA","date":"2021-09-17T06:29:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055601.25/warc/CC-MAIN-20210917055515-20210917085515-00560.warc.gz","language_score":0.8016834855079651,"token_count":332,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__226963255","lang":"en","text":"TRDA – Smoke Density Test Device with light measurement system\nTest device for determining the smoke production of materials during thermal decomposition using the method with light measurement system according to DIN 50055\nThe measuring device TRDA, due to the integrated Single Board Computer with operating system Windows 8.1, the software TRDA 2016 and the high resolution color touch display, can be used in standalone mode for setting parameters and determining the optical density and transmission.\nInterfaces like RS232, USB, RS485 and analog outputs enable connectivity to peripheral devices for fast and easy export of all relevant data and facilitate the use in existing fire testing systems. Comprehensive data analyses can be performed via an external PC or notebook. Optional accessories allow for use of the light measurement system at various types of exhaust duct systems and make calibration, operation and cleaning of the components much easier.\n- Measuring device TRDA with SBC, 32 GB SSD, Windows 8.1, 7“ color touch screen, measuring and supply modules and interfaces 1x RS232, 2x USB 2.0, 1x RS485, analog 0-1 V / 0-10 V, light emitter and light receiver\n- Light emitter RDG with halogen point light source 10W and tempered, heatproof optics\n- Light receiver RDE with silicon photo receiver, tempered, heatproof optics, spectral filter and integrated measuring light amplifier\n- Mounting flange with connection for air purge and measurement bracket for pipe installation (optional)\n- Filter set for calibration, 6 optical filters, positioning cross, transport case (optional)\n- Single license for software TRDA 2016","domain":"optical_engineering"}
{"url":"https://www.cieffeled.it/en/the-led/","date":"2023-06-02T04:54:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648322.84/warc/CC-MAIN-20230602040003-20230602070003-00626.warc.gz","language_score":0.8793845176696777,"token_count":2707,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__204477958","lang":"en","text":"LED stands for Light Emitting Diode (light emitting diode). The first LED was developed by Nick Holonyak Jr. (born 1928) in 1962.\nLED circuit symbol\nThe device uses the optical properties of some semiconductor materials to produce photons from the recombination of electron-hole pairs. The electrons and holes are injected into an area of recombination through the two regions of the diode doped with impurities of different types, namely, n-type and p for the electrons for the gaps. The color of the emitted radiation is defined by the distance in energy between the energy levels of electrons and holes, and typically corresponds to the value of the forbidden band of the semiconductor in question.\nThe LEDs are a special type of pn junction diodes, formed by a thin layer of doped semiconductor material. When subjected to a voltage to reduce the potential barrier of the junction, the electrons of the conduction band of the semiconductor is recombine with holes in the valence band releasing enough energy to produce photons. Because of the reduced thickness of the chip a reasonable number of these photons can leave and be emitted as light. The LEDs are formed from GaAs (gallium arsenide), GaP (Gallium Phosphide), GaAsP (gallium arsenide phosphide), SiC (silicon carbide) and GaInN (gallium nitride and indium). The exact choice of semiconductors determines the emission wavelength peak of the photons, the efficiency in electro-optical conversion, and then the light intensity at the output.\nAlthough it is little known, LEDs are “reversible machines”, in fact if their junction is directly exposed to strong light source or sunlight, a voltage appears at the terminals, depending on the intensity of the radiation and the color of the LED concerned (the maximum for the Blue). This feature is normally used in the construction of sensors, for pointing systems (solar trackers) of small photovoltaic systems or concentrator.\nTypes of LED\nThe first LEDs were only available in red. They were used as indicators in electronic circuits, in the seven-segment display and in optocouplers. Subsequently were developed LED that emitted yellow light and green and were built devices that incorporate two LEDs, one red and one green, generally, in the same container, allowing you to view four states (off, green, red, red + green = yellow) with the same\nIn the 90’s were built with LED efficiency increasingly high and in a range of colors increasing until the realization of blue LED was not possible to develop a device that, by integrating three LEDs (one red, one green and one blue) , could generate any color.\nThe LEDs in recent years have spread in all applications where need to have high reliability, long life and high efficiency. Some of the main ones are:\n- in infrared remote controls\n- status indicators (pilot lights)\n- backlit LCD display\n- in traffic lights and in the “stop” of cars\n- message boards\nThe LEDs are increasingly used in lighting replacement of some traditional light sources. Their use in home, then to replace incandescent lamps, halogen and compact fluorescent lamps (commonly called energy saving), it is now possible with remarkable results achieved thanks to the innovative techniques developed in the field. Through the new studies, in fact, the yield quantity of light / consumption was calculated for a minimum of 3 to 1. Basically the limit of LEDs for this type of application is the amount of light emitted (luminous flux in lumens) than in latest models for professional use is around 120 lm but in cheaper models reaches only 20 lumens. An incandescent bulb 60 W emits a luminous flux of 550 lumens. Furthermore, LEDs are brighter than those still cold light with color rendering relatively low.\nTheir use becomes far more interesting in the professional where the yield of 40-60 lm / W makes them an attractive source. As a comparison just think that an incandescent lamp has yields of about 20 lm / W, while a halogen of 25 lm / W and a fluorescent linear up to 104 lm / W. Other limit their functional lighting is that their emission characteristics and durability are strongly conditioned by the characteristics and power dissipation. Therefore it becomes difficult to identify direct relationships between the various variables, among which also comes into play a further parameter, which is the emission angle of the light beam, which can vary in a range of about 4 degrees to over 120.\nLED high brightness SMT\nFrom the application point of view LEDs are now widely used when the lighting system must have the following characteristics:\n- saturated colors\n- dynamic effects (color variation RGB)\n- long life and robustness\n- enhancement of shapes and volumes\nIn conclusion the advantages of LEDs by the lighting point of view are:\n- duration of operation (high emission LEDs arrive at approximately 50,000 hours)\n- absence of maintenance costs\n- high efficiency (compared to incandescent and halogen)\n- clean light because it lacks components IR and UV\n- ease of realization of efficient optics plastic\n- flexibility of installation of the light\n- saturated colors\n- possibility of a strong spot effect (almost point-like source)\n- safe operation because very low voltage (normally between 3 and 24 Vdc)\n- cold-start (up to -40 ° C) without problems\n- insensitivity to moisture and vibration\n- absence of mercury\nAs for the absorptions, these are minor compared to those in normal LEDs with high brightness, according to the following table:\n|types of LED||Absorption (mA)|\n|LED low consumption||3 – 10|\n|LED normal||10 – 15|\n|LED flash||20 – 40|\nThe commercial strength of these devices is based on their potential to achieve high brightness (four times greater than that of fluorescent lamps and tungsten filament), low price, high efficiency and reliability (the duration of an LED is one-two orders magnitude higher than that of traditional light sources, especially in conditions of mechanical stress); moreover, they do not require complex power supply circuits, have high switching speed and their construction technology is compatible with that of silicon integrated circuits.\nThe LEDs are particularly interesting for their characteristics of high luminous efficiency AU / A and reliability. The first high-efficiency LEDs were investigated by engineer Alberto Barbieri at the laboratories of the University of Cardiff (UK) in 1995, noting excellent characteristics for devices in AlGaInP / GaAs contact with transparent indium and tin (ITO). The evolution of the materials is therefore the key to obtain the light sources of the future which have all the characteristics to replace almost all those currently used. In mobile phones are present in smaller format on the market, for the lighting of the keys, on some models of cars and mopeds of new production, are replacing incandescent lamps, for the lights of “location” and “stop” .\nIn many cases, the LEDs are fed in continuous current with a resistor Rs in series to limit the current to the value of work, which can vary from 5-6 mA to 20 mA when it is required a lot of light. This value also depends on the wavelength of the light emitted by the LED. The necessity of the use of the same is also justified by the need to ensure a long life to the device. If there was no such resistance, a small increase in current use would decrease the value of the differential resistance of the “light emitting diode” as provided by the graph voltage / current.Such variations, if sufficient identity, could trigger a negative differential as the progressive decrease of the resistance of the LED would cause (by feeding a constant voltage as a rule) the increase of the current and an increasing Joule heating which would lead quickly to device to burn. The value of the series resistance Rs is calculated using Ohm’s law knowing the current job If required, the supply voltage Vs and the potential difference of the LED to the current working date, Vf. The potential difference Vf of the LED can be estimated from that date for a current of 20 mA in the datasheet of the product. The LEDs must be made to work only with direct voltage and must not be subjected to reverse voltages greater than a few volts that may damage them. Unlike incandescent bulbs are very sensitive to voltage variations: just 10% less because not light and 10% longer to burn. In general, when you do not have the datasheet specific, it can be considered for the usual LED 5 mm diameter a voltage Vf equal to about 2 V and a current job If prudential of 10-15 mA, up to 20 mA. Higher values of current are generally supported, but do not provide a long-lasting operation.For LEDs flash type, for which as has been said, the current can vary between 20 and 40 mA, the minimum and maximum values of the resistance will be 250 and 500 (standard values 270 Ohm and 470 Ohm). If an LED is fed in alternating must be protected from reverse voltage by means of a simple circuit. The simplest method is to use a diode connected in a configuration in which electronic jargon is called “anti-parallel” to the LED, that is, in parallel to the LED but with reversed polarity (to limit the reverse voltage).\nSolitamente il terminale più lungo di un diodo led (diametro package 3 mm, 5 mm o superiori) è chiamato anodo (+) e il terminale più corto catodo.\nPer polarizzare correttamente un diodo LED possiamo usufruire inoltre di una caratteristica particolare del package: se si guarda infatti il led dall’alto, si può notare come la parte laterale del package non sia regolare ma squadrata da un lato: questa “squadratura” identifica il catodo (-). Nel caso dei led 3 mm, si rende necessario l’uso di un tester in quanto tale “segno” (se presente) non è quasi visibile.\nSe si utilizza un tester, dopo aver selezionato la scala di resistenza con fattore 1 (X1), se si pone il puntale positivo sull’anodo e il puntale negativo sul catodo, il tester segnerà un valore di resistenza dell’ordine di qualche centinaio di ohm, nel caso il tester fosse un modello analogico con pila di alimentazione a 3 volt, se il led è efficiente, essendo polarizzato direttamente, il piccolo flusso di corrente che lo attraversa lo farà accendere, invertendo i puntali, invece, il tester non dovrà segnare alcuna continuità.\nEsiste anche un metodo “visivo” ma quasi mai usato dai tecnici per il riconoscimento del catodo o dell’anodo di un led: guardando all’interno del package trasparente si possono vedere due parti metalliche separate di diversa grandezza collegate ai terminali, la parte più grande è sempre collegata al catodo, e di conseguenza la più piccola all’anodo (+).\nConventional LEDs are composed of various inorganic materials which produce the following colors:\n- AlGaAs – red and infrared\n- GaAlP – Green\n- GaAsP – red, orange-red, orange, and yellow\n- GaN – green and blue\n- GaP – red, yellow and green\n- ZnSe – blue\n- InGaN – blue-green, blue\n- InGaAlP – orange-red, orange, yellow and green\n- SiC as a substrate – blue\n- Diamond (C) – ultraviolet\n- Silicon (Si) as substrate – blue (under development)\n- Sapphire (Al2O3) as substrate – blue\nFurthermore, the voltage drop of the LED is related to the color of the emitted light, as shown in the following table:\n|Type of LED||Voltage Drop Vi (volt cc)|","domain":"optical_engineering"}
{"url":"http://www.ditraveling.com/5-uses-for-centers.html","date":"2019-01-22T14:16:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583857913.57/warc/CC-MAIN-20190122140606-20190122162606-00359.warc.gz","language_score":0.9589677453041077,"token_count":560,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__212151661","lang":"en","text":"Laser Vision Correction.\nThe world has numerous people with different eye problems. There are those people who cannot see objects very far away from them. There are those with problems associated with hyperopia. Others suffer from astigmatism. The lenses have been the remedy for these problems for quite some time now. A person has the option of either going for the contact lenses or the eyeglasses. Correction of the vision problems can be done using some other methods. A good example is the laser vision correction. The other name for laser vision is LASIK. Laser-assisted in site keatomileusis is what LASIK means in full. It is a laser eye surgery involving the correction of myopia, hyperopia, and astigmatism. This surgical method is slowly becoming popular. It is about reshaping the cornea so that light can pass normally.\nThis method is becoming popular due to the advantages associated with it. Below are some few examples of the benefits associated with laser vision correction. LASIK is characterized by high success rate. There is proof that this method works. The vision of someone can even be enhanced following the post-surgical enhancements. It is one of the key benefits of LASIK. The other advantage is that this process is characterized by less pain. There are other surgical procedures that are more painful than LASIK. This a reason why there are people who opt for this method of vision correction. The procedure can be made more comfortable by the use of the numbing drops.\nAnother merit of LASIK is that achieves fast results. As soon as the surgery is done, your vision will be corrected almost immediately. In some cases, the patients can see properly the day after the surgery is performed. This ensures that you will not take a lot of time healing. Also, the procedure is not characterized by bandages. There are also not going to be marks left behind after the procedure. This procedure does not involve the use of stitches.\nIt is quite normal that one might need to correct vision changes due to ageing. These changes in vision might need correction. In most cases, the adjustments needed to correct the changes are done at no costs. This is another key benefit of the laser vision correction. Additionally, laser vision gives a person the chance to do away with the contact lenses or eyeglasses. This procedure also allows a person to reduce the vision correction prescription. This is something to smile about for those people who use wear glasses. The glasses are usually a source of low self-esteem for many teenagers around the globe.\nThese are some of the benefits of laser-assisted in situ keratomileusis. Some of the advantages of laser-associated in situ keratomileuses are not mentioned above.","domain":"optical_engineering"}
{"url":"http://openaccess.iste.edu.tr/xmlui/discover?filtertype_0=subject&filtertype_1=subject&filtertype_2=dateIssued&filter_relational_operator_1=equals&filtertype_3=author&filter_relational_operator_0=equals&filter_2=2017&filter_relational_operator_3=equals&filter_1=Polarization&filter_relational_operator_2=equals&filter_0=Metamaterial&filter_3=Karaaslan%2C+Muharrem&filtertype=subject&filter_relational_operator=equals&filter=Engineering","date":"2024-04-24T13:01:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819273.90/warc/CC-MAIN-20240424112049-20240424142049-00641.warc.gz","language_score":0.892802357673645,"token_count":223,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__190192329","lang":"en","text":"Now showing items 1-3 of 3\nBroad band MA-based on three-type resonator having resistor for microwave energy harvesting\n(Taylor and Francis Inc., 2017)\nWe proposed metamaterial absorber having multi-type split coin resonator based on resistive loads. The numerical simulation results and experimental measurements indicate that broad band absorption with a ratio over 80% ...\nMultifunctional metamaterial sensor applications based on chiral nihility\nIn this paper, chiral nihility based pressure, density, temperature and moisture content metamaterial sensor applications are investigated in detail. A \"chiral nihility'' medium in which both the permittivity and the ...\nExtremely-broad band metamaterial absorber for solar energy harvesting based on star shaped resonator\nA new metamaterial absorber (MA) is investigated and shown numerically for solar energy harvesting for future solar cell applications. The structure consists of two metals and one dielectric layer having different thicknesses. ...","domain":"optical_engineering"}
{"url":"http://www.optolab.uniroma2.it/eu-projects/140-chipscope.html","date":"2023-10-02T07:55:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510983.45/warc/CC-MAIN-20231002064957-20231002094957-00753.warc.gz","language_score":0.923297643661499,"token_count":166,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__54287870","lang":"en","text":"Grant agreement 737089 in H2020\nChipScope will revolutionize optical microscopes with superresolution capabilities, making them chip-sized, convenient, affordable and ubiquitously available, not only for laboratories working in manifold research fields, but also in everyday lilfe. During the project, very small LEDs of 50 nm (this is 1000 times smaller than the diameter of a human hair) will be developed and used as light sources for a new microscope which will be integrated on a chip. The fundamental difference with conventional optical microscopy will be that the illumination is made by extremely small individual light sources instead of a wide illumination field and tiny detectors in the camera. This allows super-resolution (<50nm) optical microscopy, which could be used to investigate extremely small structures as viruses, DNA or living cells, in real time.","domain":"optical_engineering"}
{"url":"https://www.epicup.com/what-is-optic-fiber/","date":"2018-12-10T12:04:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823322.49/warc/CC-MAIN-20181210101954-20181210123454-00306.warc.gz","language_score":0.9439337253570557,"token_count":127,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__101058504","lang":"en","text":"Optic fiber is flexible transparent fiber that has waves of light transmitted through it to communicate to computer systems. Since light is the fastest thing we know of, this makes fiber optic communication a good choice for massive data centers and business needing massive amounts of bandwidth. Plastic fibers also lose less energy over time, and are not affected by electromagnetic interference.\nCogent has some of the world’s largest fiber optic cables stretching in all different areas across the globe, their goal to give cheap bandwidth to absolutely anyone on either side of the world. Check out our Bandwidth Pricing page to see if it would be right for your business!","domain":"optical_engineering"}
{"url":"http://www.led-house.cz/who-we-are/","date":"2020-01-18T14:43:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250592636.25/warc/CC-MAIN-20200118135205-20200118163205-00027.warc.gz","language_score":0.916240394115448,"token_count":646,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__20915420","lang":"en","text":"Who We Are\nIn 2011, the company Neo-Neon CZ Ltd. introduced to the Czech and Slovak markets the lighting and LED technologies for the first time. In the same year the company gained direct representation of international company with more than 30-year history, a manufacturer of the LED lighting – the company NEO-NEON LED Lighting International Ltd. It was the first company in Asia that received Energy Star certification, and has long been one of the most progressive companies in a number of patents on LED technologies.\nThus, the company Neo-Neon CZ Ltd., on the basis of joining with a strong foreign partner, decided to offer its customers a modern and efficient lighting fixtures and sources for use not only in industrial settings, but also in the commercial sector and public lighting systems.\nCurrently, the company Neo-Neon CZ Ltd. holds in its portfolio a wide range of industrial and public LED lightings and can also offer its customers more advanced products capable to replace the traditional types of incandescent and other traditional light sources.\nCatalogue of our products now includes items such as LED bulbs and sources for all standard socket systems, LED tubes including fixtures with sufficient IP for use under the most demanding conditions, system of LED tapes, decorative lighting system Neon flex to replace conventional neon tubes, ceiling LED panels with suspension system, and many other types of energy-saving lighting fixtures and sources.\nThe Neo-Neon CZ Ltd., in cooperation with external partners has accomplished a number of very successful projects in the field of LED lightings. On the basis of our own proposals and lighting projects, we deliver our lighting products to many businesses, communities, municipalities, schools and other entities that want to save their costs for lighting.\nStarting with 2013 the company Neo-Neon CZ Ltd., presents also new brand products Best-LED, which are part of our offer that can be ordered through our online store www.led-house.cz.\nOur product range continues to expand and improve. We believe that our products will meet your demands and expectations and we look forward to working with you.\n- LED Bulbs\n- LED Tubes\n- LINEAR FIXTURE\n- LED i-PANEL\n- INTERIOR LIGHTS\n- INDUSTRIAL LIGHTING\n- FLOOD LIGHTS\n- STREET LIGHTS\n- LED WALL LAMP\n- Decorative lightings\n- AC ADATPERS\n- Emergency LED Lighting\n- LED TUBE FIXTURES\n3/2017 - New pricelist available Pricelist 2017/2018 for download\nLED HOUSE - SHOWROOM\nPlzeňská č.p. 43\n252 19 Chrášťány\nPraha - západ\nTel.: +420 777 666 690\nCopyright © 2013-2014, Neo-Neon CZ, s r.o.\nAssortment of LED lighting\nOur E-shop offers a constantly growing range of LED lighting BEST-LED and GIGALED. Products are used as a substitute for conventional light sources. You can save up to 85% of energy.","domain":"optical_engineering"}
{"url":"http://blog.crystallization.formulatrix.com/imaging-of-lipidic-cubic-phase-lcp-plates","date":"2019-08-23T17:35:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027318952.90/warc/CC-MAIN-20190823172507-20190823194507-00520.warc.gz","language_score":0.8989156484603882,"token_count":1519,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__108783957","lang":"en","text":"Those conditions that are determined as optimal for crystallization per FRAP are subsequently used as the basis for a crystallization screen. After an extended period of time, the crystallization plates are imaged in the hopes of finding well-formed crystals. Imaging LCP plates is not trivial however, making it often difficult to find protein crystals that have formed within the drops. LCP itself can be turbid and opaque, obscuring small crystals buried within it. The optical quality of the plates used is therefore extremely important when imaging LCP drops. The use of glass sandwiches for holding LCP crystallization drops has been proven to be a reliable method for imaging LCP drops.5,6 The smooth surfaces of the glass flatten the drops so as to minimize the bumps and ridges formed during dispensing. Also, the glass itself has negligible birefringence and thus does not interfere with birefrigent imaging.\nConventional brightfield microscopy cannot always be used as a reliable method for screening LCP plates for crystals. Oftentimes the LCP drop is very turbid and optically obscures the crystals, making it virtually impossible to distinguish a protein crystal from the medium. The use of crossed polarizers significantly improves the ability to detect crystals. The birefringent properties of protein crystals allow them to be distinguished from the LCP (Figure 6a). However, the alignment of the crystal does impact the degree of birefringence, so often they can be missed because of their orientation. Also, the LCP commonly becomes birefrigent itself, making it impossible to identify crystals (Figure 6b).\nUltra-Violet Fluorescence (UV) can be used to detect protein crystals even if the drops are turbid and birefringent. This imaging technique takes advantage of the UV fluorescence from aromatic amino acids like tryptophan present in most proteins. UV works particularly well for distinguishing between salt and protein crystals. As can be seen in Figure 7, no UV fluorescence is detected from the large salt crystal in the top of the drop, whereas small protein crystals fluoresce strongly and can be visualized within the drop.\nVisible, birefrigent and UV imaging are good tools for a scientist in trying to find crystals formed within their LCP drops. However, they are all limited when it comes to detecting small crystals. In order to detect significant birefringence, the crystals need to be at least 10 um in size, and the fact that lipids often become birefrigent detracts from using this technique in isolation. UV is advantageous in that it isn’t impacted from the turbidly or birefringence of the LCP. However it is limited in that all protein, whether solubilized or crystallized will be detected. The background from the solubilized protein decreases the contrast significantly and false positives can result from aggregated proteins.\nA new imaging technique called SONICC (Second Order Nonlinear Optical Imaging of Chiral Crystals), recently developed by Garth Simpson at Purdue University and distributed exclusively by Formulatrix, provides a solution for high sensitivity imaging of protein crystals.7 SONICC uses multiphoton microscopy to specifically detect ordered crystals, while producing negligible background signal. SONICC relies on the underlying principle of Second Harmonic Generation, where two low-energy photons under intense electric fields combine to form a higher energy photon. This process occurs only in non-centrosymmetric ordered crystals and is therefore specific to the vast majority of chiral protein crystals. However, unlike with UV fluorescence, solubilized or aggregated proteins do not result in signal. LCP drops imaged with brightfield, crossed-polarizers, and UV fluorescence are compared to SONICC imaging in Figure 8.8 SONICC can clearly identify both large crystals as well as small nanocrystals formed in the LCP, regardless of drop turbidity.\nThe SONICC imager from Formulatrix employs a drop location algorithm to accurately locate LCP drops. It subsequently adjusts the magnification of both the visible and SONICC optical paths so that the maximum magnification can be used to image the drop (Figure 9). 96 well drop plates can be imaged in less than 5 minutes in visible and 15 minutes in SONICC, with a SONICC imaging rate of two frames per second.\nThe SONICC imager also has an imaging mode to detect UV fluorescence called UV-TPEF (ultra violet two-photon excited fluorescence). Some salt crystals including lithium sulfate and ammonium phosphate form noncentrosymmetric crystals and generate SHG. The use of UV-TPEF aids in the discrimination of protein from salt crystals. Similar to standard UV fluorescence as described above, this imaging mode also takes advantage of the intrinsic aromatic amino-acid residues (ex. Tryptophan) found in proteins. When excited with UV radiation (~266 nm) these aromatic residues within the protein molecules fluoresce, making it very easy to determine whether or not a crystal is proteinaceous. In order to excite this fluorescence, the laser in SONICC is doubled with a NLO (nonlinear optical) crystal from 1064 nm to 532 nm. The green light (532 nm) is then used to image the sample. The two photon equivalent of the green is 266 nm which excites any tryptophan amino acids that are present. The two-photon excited fluorescence (325 – 500 nm) is then collected and used to create a fluorescence image. It should be noted that it is not necessary for the protein to be crystalline in order to fluoresce. In this way the SHG and UV-TPEF imaging modes act as complements to each other. The SHG channel probes crystallinity and the UV-TPEF channel is specific to proteinaceous samples. Examples of images acquired with the Formulatrix imager are shown in Figure 10.\n- Cherezov, V., and M. Caffrey. Nano-volume plates with excellent optical properties for fast, inexpensive crystallization screening of membrane proteins. J. Appl. Cryst. 2003.36: 1372-1377.\n- Cherezov, V., Peddi, A., Muthusubramaniam, L., Zheng, Y.F., and M. Caffrey. A robotic system for crystallizing membrane and soluble proteins in lipidic mesophases. Acta Crystallogr. D Biol. Crystallogr. 200460: 1795-1807.\n- Kissick, D. J.; Gualtieri, E. J.; Simpson, G. J.; Cherezov, V., Nonlinear optical imaging of integral membrane proteins in lipidic mesophases. Anal. Chem. 2010, 82(2), 491-497.\n- Wampler, R. D.; Kissick, D. J.; Dehen, C. J., Gualtieri, E. J.; Grey, J. L.; Wang, H.; Thompson, D. H.; Cheng, J.; Simpson, G.J., Selective detection of protein crystals by second harmonic microscopy. Journal of American Chemical.","domain":"optical_engineering"}
{"url":"https://www.fanmallorca.com/en/operators/soloptical/","date":"2023-02-01T18:45:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499949.24/warc/CC-MAIN-20230201180036-20230201210036-00124.warc.gz","language_score":0.9363533854484558,"token_count":150,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__296402911","lang":"en","text":"Since our inception in 1993, Soloptical has established itself as a major reference chain in the optical market. We operate with more than 120 opticians spread all over the peninsula, Balearic and Canary Islands. We have more than 1,000 professional employees at your disposal.\nIn addition to the marketing of ophthalmic frames and sunglasses, the functions of Soloptical go beyond. We are experts in lens manufacturing, frame repair, image consultancy and, of course, eye health care.\nWe have a wide range and variety of products of the best brands, both in sunglasses and prescription, and work with the best manufacturers of ophthalmic lenses. In this way, we ensure the highest quality to our customers.","domain":"optical_engineering"}
{"url":"http://www.heyuk.co.uk/mepart.html","date":"2018-07-17T07:37:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589618.52/warc/CC-MAIN-20180717070721-20180717090721-00467.warc.gz","language_score":0.9120010733604431,"token_count":220,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__154118493","lang":"en","text":"Precise measurement of the particles in suspension\nThe UNE 100012:2005 standard establishes the obligation to measure the particulate material on the surface (inert dust and fibres) of air-conditioning systems. The inspection and analysis points indicated by the regulations are input, exhaust and extractor air. Readings must be taken before and after cleaning. These readings are really important, to comply with the standard and to tell when the cleaning is needed.\nHow does it help you?\nIt allows you to extend and complement your air-conditioning cleaning service with a tool for measuring particles. The particle reader uses laser technology to detect the smallest contaminants in the air, ranging from 0.0003 mm (0.3 µm) to 0.005 mm (5 µm).Its full-colour screen enables 3 particle sizes to be observed at the same time.\nIt is very light so it can be transported wherever you need it, provides reliable results and is very easy to use. All the data collected can be transmitted later to a computer with a usb cable for analysis.","domain":"optical_engineering"}
{"url":"http://crystals-video.com/laser-optics","date":"2023-10-01T18:03:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510924.74/warc/CC-MAIN-20231001173415-20231001203415-00112.warc.gz","language_score":0.9201648831367493,"token_count":142,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__266824065","lang":"en","text":"JIEPU TREND is a leader in the fields of testing techniques and equipment. We have a wide collection of advanced test machines, such as a ZYGO interferometer, and a PE spectrophotometer, just to name a couple.\nOur company has extensive experience in the optical cold processing field. We supply high precision optical glass and optical materials, including optical camera lenses, optical glasses, wattles, prisms, spherical mirrors, plane mirrors, cylindrical mirrors, diaphragms and more.\nThe testing techniques and equipment of our company are also pioneers in the industry. Our company owns many testing machines including Zygo interferometers, and PE spectrophotometers.","domain":"optical_engineering"}
{"url":"https://remotesecurityservices.co.uk/cctv/cameras/","date":"2021-05-12T14:03:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243990929.24/warc/CC-MAIN-20210512131604-20210512161604-00605.warc.gz","language_score":0.9153054356575012,"token_count":575,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__133977687","lang":"en","text":"All our new cameras use digital technology ensuring a vastly superior image over older analog cameras. However, if you wish to utilise your existing analog cameras, they will be compatible with our new recorders (DVRs).\nResolution of Cameras explained\nAs with all technology CCTV cameras are advancing at a fast rate. The days of CCTV images being blurry and it being hard to determine if a image contains a person are fast disappearing. To help you choose the correct camera for your application we have added the image below to show the difference in camera resolutions (image quality).\nThe first Picture is a standard Analog image, which CCTV has been using for a long time, as can be seen the number plate can not be recognised, even the badge on the car is hard to make out.\nThe second image is analog HD, the number plate can be recognised but the people are hard to perceive.\nThe third picture is TVI full HD, the car make and number plate are easily recognised and the people in the car can be easily described.\nWe strongly recommend that if you are choosing a CCTV system, the best option is TVI full HD, the ability to zoom in the image is also drastically improved.\nThe camera may have a fixed lens which is ideal for monitoring large areas or fitted with a varifocal lens for monitoring door ways, tills or cars etc. They contain the latest in infra-red technology which enables them to view up to 30 metres at night.\nThe cameras are fitted with a high resolution sensor giving a high definition quality image.\n- 1/2.9” 4 Megapixel CMOS sensor\n- IR Leds: 36pcs\n- IR Range: 25m-30m\n- Power supply: 12VDC\n- Resolution: 4 MP/1080P\n- Dims: 120x86mm\n- IP rating: IP66\nThis camera has a similar specification to the eyeball cameras, however it has an improved infra-red (night vision) capability with viewing of up to 50 metres. It also comes with a varifocal lens as standard.\nThe camera also acts as a great deterrent due to its high profile looks.\n- Colour Grey\n- Lens 2.8 – 12mm\n- Lens Type Vari-focal\n- Megapixel 4MP\n- IP Rating IP66\nVandal Resistant Camera\nOur range of vandal resistant cameras are ideal in areas that are prone to vandalism or problems with nuisance neighbours. They have the following specification:\nImage Sensor: 1/3” Sony Exmor Digital Image Sensor IMX238\nIR Leds: 30pcs\nIR Range: 25-30M\nPower supply: 12VDC\nResolution: HD 1080P (Full HD TVI)\nIP rating: IP66","domain":"optical_engineering"}
{"url":"https://bmwmcmag.com/2014/04/bmw-developing-oleds-for-motorcycle-lighting/","date":"2020-10-29T10:08:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107904039.84/warc/CC-MAIN-20201029095029-20201029125029-00272.warc.gz","language_score":0.9384435415267944,"token_count":1026,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__149187338","lang":"en","text":"Organic light-emitting diodes, or OLEDs, are innovative, efficient and sustainable light sources that BMW will be fitting in its vehicles in the near future under the name BMW Organic Light. In OLEDs, the light is emitted by wafer-thin semi-conductive layers made from organic materials. OLEDs work very efficiently by design and generate very little heat as a result. BMW Organic Light thus helps to further reduce CO2 emissions.\nRather than being emitted in the form of points, the light generated by OLEDs shines out over a relatively large area compared to LEDs and is extremely homogeneous in appearance. This characteristic is down to their special design. In contrast to conventional LEDs, where the light is produced in semiconductor crystals, the light in OLEDs is generated in extremely thin semi-conductive layers made from organic materials, mostly polymers. Together with the conducting layers, these are hermetically sealed between two thin glass plates or plastic films. The entire set of active, light emitting layers measures a mere 400 nanometers or so in height (one nanometer is equal to one millionth of a millimeter). That is some 150 times thinner than a human hair, which measures around 0.06 millimeters across on average. The complete component is about 0.8 to 1.5 millimeters in height overall.\nDue to the very low power consumption and weight of OLEDs, BMW Organic Light also helps to reduce the fuel consumption of vehicles with combustion engines, extend the range of electric cars and, as a result, cut CO2 pollution.\nThe sustainability of this technology represents a further major benefit. The manufacture of organic light-emitting diodes does not involve any costly and scarce raw materials such as “rare earths”. What’s more, the quantity of organic substances and metals used is so low that it will be possible to simply dispose of OLEDs in the waste glass container at the end of their service life.\nOLEDs open up a range of new opportunities for lighting on BMW motorcycles.\nAlthough BMW Motorrad has already made significant progress with the introduction of LED technology for main headlights, daytime running lights, rear lights and indicators in comparison with conventional incandescent lighting technology, developments in the area of LEDs are still ongoing.\nWith the development of organic LEDs (OLEDs), it has proven possible to create a thin-layered component from organic semiconductor material. Compared to the inorganic material already used in LEDs in standard production vehicles, the application of OLEDS in BMW Organic Light promises a range of benefits. Because of the design as a thin-layered element, for example, it is possible to produce very thin, flexible displays for smartphones or even lighting units for motor vehicles.\nThe inorganic LEDs we currently encounter in many application areas operate with a semiconductor crystal embedded in a conical recess that acts as a reflector. The luminous intensity achieved in this way is not constant across the entire angle of radiation, however. This means that the light from an LED lamp always seems less bright to the human eye the more it is seen from the side. This is why current LED lamp units in cars always have optical aids like highly developed reflectors aimed at reducing this effect and achieving a relatively homogeneous luminous intensity with the greatest possible radiant angle and viewing angle, thus ensuring the “strength” of the light to the human eye.\nOn the other hand, BMW Organic Light permits a lamp unit to be created whose luminous intensity is almost constant across the entire radiant angle, coming very close in physical terms to the theoretical characteristics of a so-called ideal Lambert radiator. This makes it possible to dispense with complex optical aids such as reflectors, for example, and together with the thin-layered, slim-line design of the OLEDs, whose backing material can be used directly as an electrical conductor, opens up entirely new design options for the development of light units for BMW motorcycles.\nAt present, the luminous density of the OLEDs is still insufficient and more development work is needed. While this is adequate at present for a rear light, lighting elements like the brake light or indicator need reinforcing. This is achieved through the use of additional conventional LEDs. However, these hybrid solutions permit a new visual language. The staggered arrangement of the almost completely freely configurable OLED elements creates a highly three-dimensional lighting effect that viewers find very attractive. On the other hand, the familiar conventional LEDs ensure sufficient luminous density.\nWhile such hybrid solutions involving OLEDs and LEDs could make their way into BMW standard motorcycles within the next two or three years, it will take a few more years yet to develop brake lights, indicators or even headlights that use OLED technology alone. Assuming that their luminous density is significantly improved, OLEDs will possibly lead to completely redesigned, more attractive lamp units for BMW motorcycles. However, as well as greater visual appeal, BMW Motorrad is also concerned with achieving maximum performance and safety in its motorcycles, thus also maximizing safe riding fun.","domain":"optical_engineering"}
{"url":"https://kozuchowskiarchitekci.pl/directory1/28860_106331/","date":"2022-01-28T22:45:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320306346.64/warc/CC-MAIN-20220128212503-20220129002503-00238.warc.gz","language_score":0.8412951827049255,"token_count":1868,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__125833107","lang":"en","text":"Alibaba offers 976 lens grinding machine products. About 38% of these are other optics instruments, 3% are grinding machines, and 1% are grain product making machines. A wide variety of lens grinding machine options are available to you, such as free samples, paid samples.optical lens grinding machines, optical lens grinding,A wide variety of optical lens grinding machines options are available to you, There are 494 optical lens grinding machines suppliers, mainly located in Asia. 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Optical Automatic Lens Edger Grinding Machine Pc-specific Wheel Performance.\nNov 15, 2019· The grinder will learn how to mark lenses to indicate where cutting and grinding must occur, and he or she will also learn how to polish the lenses to eliminate scratches, clouding, and other damage that can obscure regular vision. Maintenance of the machines used in the grinding process may also be the responsibility of the grinder.Grinding For Sale Farm Equipment For Sale,Farm Equipment For Sale. Milking Machine; Farm Equipment; Farm Tractor; John Deere; Massey Ferguson; Cultivator; Grinding In Stock. Buy Grinding on eBay now! 0-4l-laboratory-pulverizer-ball-millsmall-planetary-ball-grinding-mill-machine . 0.4l Laboratory . 0.4l Laboratory Pulverizer Ball Millsmall Planetary Ball Grinding Mill Machine T.\nThe Machines: Documentation: Information for ATMs Contact Denniscr lens grinding machines castellobonetti.it,lens grinding equipment for sale 333 lens grinding equipment wholesalers & lens grinding equipment manufacturers from China. lens grinding equipment manu Chat Online valve grinding machine cr","domain":"optical_engineering"}
{"url":"https://www.coompu.com/lessons-learned-from-years-with-optics.html","date":"2019-06-26T00:40:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999964.8/warc/CC-MAIN-20190625233231-20190626015231-00436.warc.gz","language_score":0.951261043548584,"token_count":507,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__42752153","lang":"en","text":"Picking Out Fiber Optic Systems\nWe have a lot of methods through which the transmission of digital data can be done but the one that is the most common to a lot of people is the use of the fiber optics technology. The fiber optics technology is also widely used across the world today to enable the transfer of live video digital signals and this is because as compared to most of the other technologies used in the transfer of live video digital signals, the fiber optic technology has very few limitations if any. If you want a very effective and efficient way to move your digital data then it is very beneficial for you to choose the fiber optics technology since it allows very thin strands of fiber to carry such enormous volumes of data efficiently and effectively.\nWith the use of a fiber optic cable very large volumes of digital data can be transferred vey fast based on the principle that this data is usually transferred in the form of light by making it bounce off the inside part of the fiber optic cable. There are quite a lot of benefits that can be gained from the use of fiber optics to transmit digital data as compared to using any other means to transmit digital data. If you want to avoid receiving poor and low quality live video digital signals as a result of some climatic conditions such as heavy downpour of rain then it is very important that you use the fiber optics digital data transmission technology for your live video feeds.\nGiven the fact that the fiber optic digital data transfer techno is able to transmit digital data to far distances without the quality of the digital data signals getting affected, cameras can be fitted or placed long distances apart. If you are intending to set up a good and highly effective fiber optic digital data transfer system in your company or business then you have to pick out the best service provider since there is a large number of fiber optic systems companies in the market today. In order for you to be able to pick out the best and most credible fiber optics company for your enterprise, here are a number of factors that you will need to have in mind.\nMake sure that you also get to check out what the previous clients of the different fiber optics companies in your area have said about the services of the various companies before you make the decision to hire. Make sure that you also verify and confirm that the fiber optics company whose services you hire has all the necessary documentation so as to avoid low quality services. It is likewise very important for you to find out the costs of hiring the services of a fiber optics digital transfer company so that you set a budget.","domain":"optical_engineering"}
{"url":"http://mira2751kwfblog.mybjjblog.com/2-elements-individuals-do-certainly-not-figure-out-concerning-lasik-eye-surgical-operation-5743230","date":"2019-01-21T20:02:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583807724.75/warc/CC-MAIN-20190121193154-20190121215154-00322.warc.gz","language_score":0.9547143578529358,"token_count":886,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__100029421","lang":"en","text":"2 Elements Individuals Do Certainly Not Figure Out Concerning LASIK Eye Surgical OperationThe eye can be analyzed with relative ease regarding both its function and its structure. A practical evaluation includes the ability to move in the orbit and the response of the pupil to light and accommodation.\nThe function of the eye may be checked in several methods. The patient might be asked to identify illuminated letter or things of differing sizes on what is referred to as the Snellen chart.\nConversely, the evaluation of the structural part of the eye may be made in several methods. Stress within the eyeball is measured by a \"tonometer.\" In particular illness, especially in glaucoma, the tension in the eyeball is increased noticeably.\nIt should be well remembered that a client with an eye issue may have other problems. Often other physical conditions are main and affect the eye as a effect. The look of the eye can signal the physician and the patient to difficulties in some disruptions of other parts of the body even before other symptoms present themselves.\nConsequently, one's dependence on sight is emphasized when one faces a temporary or possible long-term loss of this vital sense. Thus, when restorative measures are looked for, certain kinds of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are bothered with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to encourage reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction. The only distinction is that with this type of surgery, one's vision is corrected permanently.\nWith LASIK eye surgery, the refractive errors in the cornea are completely changed. This can Click This Link be done utilizing an \"excimer laser.\"\nThe primary function of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea using a blade understood as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgery, there are still disadvantages that individuals need to know. Probably, the main reason why this kind of eye surgery has become well accepted is since the majority of its cases had achieved success.\nHowever, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is one of the most delicate parts of the eye, most people state that the operation can be really risky.\nTo puts it simply, a easy mistake might practically trigger an individual's life time loss of sight. Thus, it is essential to think about many aspects prior to choosing whether LASIK eye surgery is the ideal restorative step one needs to go through.\n2. It is not a perfect procedure\nLASIK eye surgical treatment might remedy your vision however it does not always imply that it can provide you a twenty-twenty. Even if analytical reports show that click this site 70% of the clients might have 20/20 vision, this does not necessarily imply they have perfect vision too.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not constantly be the ideal eye surgery the method many individuals view it\nOn the other hand, the examination of the structural part of the eye may be made in numerous methods. It should be well kept in mind that a client with an eye issue might have other problems. Frequently other physical conditions are primary and impact the eye as a repercussion. The look of the eye can inform the client and the click for source physician to difficulties in some disruptions of other parts of the body even before other symptoms present themselves.\nLike its concrete equivalent, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://unisonmen.com/products/polarized-sunglasses-retro-wayfarer-black-hd-vision-uv400-for-men","date":"2022-06-28T19:26:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103573995.30/warc/CC-MAIN-20220628173131-20220628203131-00554.warc.gz","language_score":0.820850670337677,"token_count":477,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__176666966","lang":"en","text":"Polarized Sunglasses Retro Wayfarer Black HD Vision UV400 For Men\nRegular price $99.00 Sale price$39.00 Save $60.00\n- Free worldwide shipping\n- In stock, ready to ship\n- Inventory on the way\n- PC frame\n- TAC lens\n- Lens width: 52 millimeters\n- Lens height: 42 millimeters\n- Bridge: 19 millimeters\n- Arm: 142 millimeters\n- HD VISION AND 100% UV PROTECTION-The polarized lens can blocks 99% harmful UVA&UVB rays,eliminate dazzling reflected light and scattered light and reduce glare blue light transmission effectively.It can show the original color of the world and the scenery is more real and natural.Protect your eyes perfectly and bring you the best comforts.\n- TAC POLARIZED LENS-The retro square polarized sunglasses are constructed with premium resin materials to ensure that it is durable,lightweigh and UV protection.TAC polarized lens apply 7 layer HD filtration technology and is finely ground to provide superior optical clarity.\n- ULTRALIGHT WAYFARER STYLE-It weighs 25g,long-term wear of the bridge of the nose without pressure.The classic wayfarer sunglasses is designed for men women for sports and outdoor activities.such as racing,fishing,climbing,hiking,driving and so on.It is a wonderful christmas gift as high fashion accessory and daily wear for your friends and your family.\n- VINTAGE INSPIRED ERGONOMIC DESIGN-Retro wayfarer polarized sunglasses is from a Italian brand designer's inspiration.Lightweigth frame&anti-allergy&skin-friendly tested and not easy to slide with the comfortable soft red rubber on the end of arms and the ends of the sunglasses temple,as well as integrated nose pad.Harmless to skin,all the details ensure you a perfect performance.\n- 100% MONEY BACK GUARANTEE-In case any broken problem happens,Plaese contact the SIKYGEUM EYEGLASSES seller without hesitation to solve the problem until you are satisfied.You have no risk to tryand we will try our best to provide you the best service.","domain":"optical_engineering"}
{"url":"http://www.pentamaster-international-ltd.com/solutions/automated-equipment/semiconductor-electronic-components-testing-solutions/mems-smart-sensor-test-handler-solutions/proximity-sensor-test-handler/","date":"2020-01-27T05:14:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251694908.82/warc/CC-MAIN-20200127051112-20200127081112-00067.warc.gz","language_score":0.7323712110519409,"token_count":232,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__233804305","lang":"en","text":"Proximity Sensor Test Handler is designed to test the performance of proximity sensors in both electrical & optical characteristics.\nUsing Advance Optical Chambers which is configurable for different distance from 0mm to 50mm, it is capable of performing a wide spectrum of tests.\nThe tester further enhanced the test methodology by introducing elevated temperature testing which ranges from 5°C~80°C.\n|Input/Output Option||JEDEC Tray|\n|Contact Mechanism||Punch type|\n|Test Site||– Up to 4 sites\n– Up to 32 sites base on customized layout\n|Tester Sequence||Parallel/Serial test|\n|Test Approach||Multiple distance of reflective cards (Reflectance ranged from 0% to 100%)|\n|Test Distance||– 0mm~50mm\n– Up to 1.5m base on customized layout\n|Test Capabilities||– Electrical Functional Test\n– Light Leakage Test\n– LED Wavelength & Radiant Test\n– Power, Current & Voltage (LIV) Slope Test\n– Photo Diode Sensitivity Test\n– Cross Talk & Optical Measurement Test","domain":"optical_engineering"}
{"url":"http://www.jmusheneaux.com/general/what-is-fiber-optics/","date":"2023-09-27T16:07:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510300.41/warc/CC-MAIN-20230927135227-20230927165227-00302.warc.gz","language_score":0.9278672933578491,"token_count":674,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__267017804","lang":"en","text":"Fiber optics, often known as optical fiber, is a technique that uses glass or plastic fibers to convey data via pulses of light. From a few to several hundred of these glass fibers can be packed into a single fiber optic cable. The core of glass fiber is encased in a second glass layer called cladding. Each individual strand is shielded first by the buffer tube layer, then by a jacket layer. Know more about fiber optics.\nThe benefits of fiber optic cables over copper cables have led to their widespread deployment. Higher bandwidth and transmission speeds are two examples of these advantages.\nData transmission over great distances and with high throughput may be accomplished with fiber optics. The internet, television, and telephones are just some of the many places it finds widespread use. Gigabit internet speeds are available from providers like Verizon FIOS and Google Fiber, both of which employ fiber optics.\nThe mechanics of fiber optics\nPulsed photons of light travel across a fiber optic connection, carrying information. The entering light is refracted at an angle by the combination of the glass fiber core’s and cladding’s refractive indices.\nTotal internal reflection describes the path taken by light signals as they bounce back and forth between the core and cladding of a fiber optic cable. Due to the denser glass layers, the light signals are slowed by about 30% compared to traveling at the speed of light.\nRepeaters are placed at regular intervals along a fiber optic cable to refresh and strengthen the signal as it travels. In order to retransmit the optical signal, these repeaters first convert it to an electrical signal, then process that signal, and then retransmit it.\nOptical Fiber Wires\n- Examining a fiber optic cable in greater detail.\n- Fiber optic cable varieties\n- The two most common kinds of fiber optic cable are multimode and single-mode fiber.\nDue to the smaller diameter of the glass fiber core, single-mode fiber can be used for greater distances. Attenuation, or weakening of a signal, is less likely to occur with a smaller diameter. The narrower aperture concentrates the light into a narrow beam, providing a more direct path and extending the range of the signal.\nThe bandwidth of single-mode fiber is also much greater than that of multimode fiber. For single-mode fiber, a laser is the most common light source. Since precise calculations are required to produce the laser light through a smaller opening, single-mode fiber is typically more expensive.\nModal diversity in multimode fiber\nSince the larger core opening in multimode fiber allows light signals to bounce and reflect more along the way, it is typically used for shorter distances. Because more light pulses can be sent through the cable at once, more data can be transferred with a larger diameter cable. However, this also increases the likelihood of signal attenuation, reduction, or interference. The light pulse in multimode fiber optics is generally generated by an LED.\nTania Witt is an SEO expert, worked as a team leader of an outsourcing company for 4 years. Many online businesses’ websites are on the top rank on search engines with his help. Tania’s book entitled “See Your Website On Page One” is best-selling nowadays.","domain":"optical_engineering"}
{"url":"https://www.televes.com/us/2329-sc-apc-connectors.html","date":"2022-10-01T05:45:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335530.56/warc/CC-MAIN-20221001035148-20221001065148-00698.warc.gz","language_score":0.9027212858200073,"token_count":519,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__257622119","lang":"en","text":"Optical fiber connectors.\nSupplied in 10-unit boxes.\nTeleves reserves the right to modify the product\nUsually, when faced with extended optical fiber RF installations, the question arises about which type of fiber connector to use. The apparent mechanical compatibility between some of them may even prevent the network from working. Fiber connectors are named after a combination of two acronyms: One refers to the connector type, the other to the size and finish of the fibre ferrule. The first indicates whether the connector is threaded or has a different type of fixing. The second acronym indicates the fiber’s finish: bevelled (APC_Angle Physical Contact), straight (PC_Physical Contact), with an air gap, etc. For example, the seemingly valid connection of a fiber equipped with an SC/PC male connector to a device equipped with an SC/APC female connector causes the signal to degrade, since the compatibility between both connectors must be at both the fixing mechanism and the finish levels.\nDirt: This affects 95% of optical equipment failures. It is essential to always methodically clean the connectors to be installed, even if they are new.\nYes. Optical fibers are good at withstanding longitudinal strain; however, this is not the case when they are winded over themselves (as a result of incorrect uncoiling). This usually causes premature failures as soon as traction is applied to the fibre. Extracting the fibre form the reel longitudinally is essential.\n- Insert the fiber through the threaded plastic cap andthe rubber sleeve.\n- Strip the fiber (leaving a length of 20mm for a 250micras diameter and 10mm for the 125micras diameter)At this point, and before cutting the fiber with a high precision cutter (Ref.2323), be sure to clean the unprotected fiber with an isopropyl alcohol wipe (250 and 125 micras)\n- Insert the fiber into the connector housing, be sure that the end of the fiber does not touch any part of the device, until it reaches the bottom.\n- Close the connector tab (in black), trapping the rubber sleeve (and therefore the fiber).\n- Move the connector slide switch (in yellow) to securethe fiber.\n- Screw in the plastic cap. Insert the green rectangular cap until it is secured (maintaining the same position as it is received).","domain":"optical_engineering"}
{"url":"https://bluesci.soc.srcf.net/posts/feature-eye-popping-films","date":"2023-12-05T08:59:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00106.warc.gz","language_score":0.9510543942451477,"token_count":1518,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__44531104","lang":"en","text":"MONDAY, 3 OCTOBER 2011\nThe aim of 3D cinema is to replicate the experience we get when we look at the 3D world around us. Objects that are farther away look smaller to us and are also blocked from our vision by things that are closer.\nOur eyes present us with two views of the same object, so that we have a better idea of where it is in 3D space—this is called stereopsis. Furthermore, eyes have to focus to see things more clearly, and since focusing depends on the distance to an object, this gives us a better idea of its position in 3D space too. Neither of these effects can be replicated using standard 2D films and, for now, only the first is actually in use in 3D cinema. However, eventually film-makers may even be able to make our eyes focus on objects on a cinema screen as though they were closer or farther away.\nFor a 3D film to persuade us that something is closer than the screen, the left eye must see the same object to the right of where the right eye sees it. The brain will assume that these two images are of the same object in the same position and it will interpret this as it would any other object for which this is the case—it will think that the object is closer to us. The opposite is true for objects that are supposed to be far away; if the left eye sees an image slightly to the left of where the right eye sees it, the brain will assume that it is farther away than the screen. As a result, 2D images appear to be 3D.\nThe most primitive form of 3D imaging is called anaglyph. You have probably tried this—it requires you to wear glasses with one red and one blue lens. Anaglyph images will then have some red and some blue parts to them: the red parts are filtered out by the red lens, allowing you to see only the blue parts, whilst the blue parts are blocked out by the blue lens, meaning you see only the red parts. This allows a film-maker to cause each eye to see something slightly different, fooling the brain into inferring a 3D image. The drawback of this method is that the quality of colour of any cinematic image may be compromised to some degree by the need to look through these coloured filters.\nSome glasses use a more advanced version of this idea. One of the lenses lets through only certain wavelengths of light of various colours while blocking others out, whereas the other lens does the opposite. This can improve the quality of colour, but otherwise works very much like anaglyph.\nThere is a type of electronic glasses that use a completely different method. These work by blacking out one lens while a film shows what that eye should see and then blacking out the other lens. In order for the brain not to be bothered by this, the flickering has to be at a high frequency and must be completely in synchronisation with the film. This requires expensive glasses in which flickering can be kept in time with the film either by a wire, which is cumbersome, or wirelessly, which further raises the price of the glasses. For this reason, this method has not been widely used in 3D cinema.\nRather than sacrificing image colour quality with anaglyphs, or forcing viewers to pay huge prices to watch films with expensive glasses, the polarisation method is widely used. It allows for high colour quality but requires an expensive screen, as the polarisers only let half of the light through to each eye. This means that the colours in the film must be intensified, otherwise they could appear dimmed to viewers. However, it does allow for much cheaper glasses, reducing costs when hundreds of people watch the same viewing of a film. There are two types of polarisation that are used in 3D cinema, with both taking advantage of light waves oscillating perpendicular to the direction in which the light travels.\nThe simplest form of polarisation is plane polarisation. In normal light, the oscillation is in all directions at right angles to the light’s direction of travel, but if light is plane polarised by being passed through a filter, all the oscillations are in the same direction. For example, viewers can wear glasses with one lens polarised to block out the horizontally polarised light, only letting through the vertically polarised light and only letting the viewer see the image formed from vertically polarised light. The other lens can then do the opposite, blocking vertically polarised light and so providing the other eye with a different image: that in horizontally polarised light. The problem with this is that the glasses have to be kept completely straight; if they are tilted too far one way or the other, both eyes will start to be able to see both images, as the polarisers will not be orientated in the same direction as the light.\nThis effect can be avoided if circular polarisation is used instead. With circularly polarised light, as opposed to oscillating in just two planes, the light wave describes a circle. To create this, light must be first polarised in a horizontal and vertical direction, but the wavelengths are made to oscillate out of sync with one another by just a quarter of a wavelength. As these wavelengths approach the eye, the combination of the out of sync light waves is equivalent to them forming a circle.\nA filter is made from an anisotropic material that forces the light to travel more slowly in one direction. Therefore, one of the planes of light becomes a quarter of a wavelength behind the other plane, creating the circular polarisation. Whether the horizontally or vertically polarised light is delayed determines whether the light is circularly polarised in a clockwise or an anti-clockwise direction. So that each eye sees only one of the images, the glasses must undo this polarisation. The light must travel through another layer of anisotropic material, so that it is plane polarised again, and then through a polariser. Clockwise and anti-clockwise polarised light travelling through the same anisotropic material would come out plane polarised at 90 degrees to each other. Each lens of the 3D glasses has a different plane polarised filter so each eye sees a different image, either horizontal or vertical waves, which the brain can convert into a 3D picture.\nThis is the method most commonly used in cinemas today. If you take two pairs of these 3D glasses, you can see that they work by circular and not plane polarisation. By wearing a pair with one eye open and looking at a friend wearing another pair, one of the lenses should appear blacked out. Furthermore, it should be the same lens regardless of how much you tilt your head.\n3D cinema has come a long way since its invention. Through the early anaglyph images with fairly poor colour quality, we have now moved to glasses with polarisers that are capable of showing high quality 3D images. As this technology continues to develop, we can expect a cinema experience that will become more and more convincingly 3D.\nAaron Barker is a 4th year student in the Department of Earth Sciences Clever applications of physics and the large market envisaged by the film industry have driven this technology rapidly forwards since its resurgence in the 1980’s. Many films these days are being made in 3D, but often the relatively simple technology behind them is poorly understood.","domain":"optical_engineering"}
{"url":"http://ilah2455phyblog.mybjjblog.com/2-challenges-you-do-not-realize-with-regards-to-lasik-eye-surgical-treatment-5355708","date":"2019-01-21T22:19:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583814455.32/warc/CC-MAIN-20190121213506-20190121235506-00101.warc.gz","language_score":0.9524955749511719,"token_count":891,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__91839146","lang":"en","text":"2 Challenges You Do Not Realize With Regards To LASIK Eye Surgical TreatmentThe eye can be taken a look at with relative ease as to both its function and its structure. A practical evaluation includes the ability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be evaluated in several ways. The client may be asked to determine illuminated letter or things of varying sizes on what is understood as the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye may be made in a number of methods. Stress within the eyeball is determined by a \"tonometer.\" In certain illness, specifically in glaucoma, the tension in the eyeball is increased noticeably.\nIt needs to be well remembered that a patient with an eye problem might have other problems. Typically other physical conditions are main and impact the eye as a consequence. The appearance of the eye can notify the doctor and the client to troubles in some disturbances of other parts of the body even before other symptoms present themselves.\nAs a result, one's reliance on sight is stressed when one faces a possible or short-term long-term loss of this crucial sense. When restorative procedures are looked for, specific types of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some people are troubled with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to encourage reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this kind of surgery, one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe primary purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea using a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the main reason that this type of eye surgical treatment has ended up being well accepted is because the majority of its cases had actually achieved success.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is among the most Continued sensitive parts of the eye, many individuals state that the operation can be very risky.\nTo puts it simply, a simple error might nearly trigger an individual's lifetime blindness. For this reason, it is necessary to consider many elements prior to choosing whether LASIK eye surgical treatment is the right corrective procedure one needs to go through.\n2. It is not a ideal procedure\nLASIK eye surgery may fix your vision but it does not necessarily indicate that it can offer you a best vision. Even if analytical reports reveal that 70% of the clients might have 20/20 vision, this does not always mean they have ideal vision as well.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, news LASIK may not always be the ideal eye surgical treatment the method the majority of people see it\nOn the other hand, the evaluation of the structural part of the eye might be made in a number of methods. It ought to be well remembered that a patient with an eye issue might have other problems. Typically other physical conditions are main and impact the eye as a repercussion. The look of the eye can signal the physician and the client to problems in some disruptions of other parts of the body even before other symptoms provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://astro.org.uk/news/sep03/","date":"2023-12-05T05:33:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100545.7/warc/CC-MAIN-20231205041842-20231205071842-00735.warc.gz","language_score":0.9676890969276428,"token_count":658,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__263982031","lang":"en","text":"Imaging the Universe\nThe Stratford upon Avon Astronomical Society's September lecture was given by Dr. Robert Massey. He came from London, to give us an excellent talk entitled \"Imaging the Universe: The New Generation of Telescopes\".\nDr Massey did a PhD at Manchester University before working as a further education lecturer in Brighton. He now works at the Royal Observatory in Greenwich, specialising in Education and Public Outreach, a job that ranges from giving television interviews to making models of comets for primary schoolchildren.\nTelescope technology has moved on greatly in the past few years. Before the 1990's we had no significant optical telescopes in space and no 8 metre class telescopes. The 5-metre Hale telescope on top of Mt. Palomar, Pasadena, California had remained the largest in the world since 1948.\nNow, the Hubble Space Telescope with its 2.4 metre mirror has been in space for 13 years. The Very Large Telescope in Chile, which has four 8-metre mirrors, uses adaptive optics to produce excellent images. The four telescopes will eventually simulate a 100 metre aperture telescope when they work together, but at present the timing required to link them together is not accurate enough. On Hawaii, there are the Gemini North, Subaru and Keck telescopes, which are all greater than 8 metres, plus many others.\nThe most famous telescope is the Hubble Space Telescope (HST). It was Lyman Spitzer who proposed a space observatory in 1946, but it wasn't until 1977 that NASA gave the funding. It was named the Hubble Space Telescope after astronomer Edwin Hubble. The HST has a mirror with an aperture of 2.4 metres, with the surface correct to around 1/50th of the wavelength of light. Its resolution is 0.05 arc-seconds, about 10 times better than on Earth. It can reach a magnitude of 31 (a 20cm amateur telescope is capable of about magnitude 14) and operates from ultraviolet to near infrared wavelengths.\nThe HST was ultimately launched in April 1990 after being delayed following the Challenger accident. After its launch, it was discovered that the mirror had a spherical aberration that meant the images were fuzzy. The outer edge of the mirror was ground too flat by a depth of 4 microns (roughly equal to one fiftieth the thickness of a human hair). The flaw resulted in images that were fuzzy because some of the light from the objects being studied was being scattered. This was corrected by the first servicing mission in 1993, when the mirror was given some 'glasses'. This mission was successful, and since then, the telescope has made an enormous contribution to astronomy. It has discovered forming planetary systems, been used to measure the masses of black holes, resolved features on Pluto's surface and confirmed the extra-galactic nature of Gamma Ray Bursts. It is due for another service in 2005, so that it will continue to be a useful tool for astronomers.\nSome facts about the Hubble Space Telescope...\nDr Massey concluded his talk with a description of future projects. This included animations of the Owl (Overwhelmingly Large) telescope, an instrument that will have a 100 metre primary mirror and a secondary mirror 200 metres above ground level.","domain":"optical_engineering"}
{"url":"https://wovow.org/jdi-presented-8k-display-with-a-diagonal-of-17-3-inches/","date":"2023-12-08T18:20:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100769.54/warc/CC-MAIN-20231208180539-20231208210539-00854.warc.gz","language_score":0.8462862968444824,"token_count":172,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__238282280","lang":"en","text":"The company Japan Display Inc. demonstrated its latest development – a 17.3-inch display with a resolution of 8K-capable to provide incredible detail and lifelike pictures.\nUsing a low-temperature polysilicon LTPS technology allowed engineers to create a JDI IPS-matrix with a record for its size pixel density of 510 ppi. At a resolution of 7680×4320 pixels whole (about 33.2 M) and 120Hz screen view provides clear images of moving objects without blurring and color distortion. Monitors on the basis of a new 8K-panel ideal for professional photo and video.\nAccording to the Japan Display, ultra-sharp display can also be used in medical and gaming monitors. When do you plan to begin mass production of screens with 8K-resolution, the company did not specify.","domain":"optical_engineering"}
{"url":"https://www.tbdeyewear.com/en/blog/post/what-are-polarized-sunglasses-and-why-choose-them","date":"2021-10-19T06:37:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585242.44/warc/CC-MAIN-20211019043325-20211019073325-00076.warc.gz","language_score":0.9123973846435547,"token_count":564,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__177072318","lang":"en","text":"What are polarized sunglasses and why choose them.\nBoat trip or mountain hike? Never without TBD Eyewear polarized sunglasses. Let's find out their characteristics together.\nYou have certainly heard of the polarized sunglasses, but do you know why are they different? Let's start with the premise that in the three-dimensional space, the natural light moves vertically, horizontally and within these two dimensions. During the horizontal movement, the light, which is called polarized, creates a visual disturbance, a reflection. This reverberation covers the entire field of the view and causes a color distortion and reduced the visibility.\nHow do polarized lenses work?\nThe lenses of the polarized sunglasses are able to absorb the horizontal sunshine rays responsible for glare, allowing only the useful vertical rays to pass through.\nThe advantages of the sunglasses with the polarized lenses\nThere are several advantages that the polarized filter of the sunglasses can guarantee:\n- reduction of reverberation\n- clear and clean vision\n- increase in contrast and colors\n- less eye strains\nThe polarized sunglasses are optimal especially for those who play sports, not necessarily at a competitive level, but also simply as a hobby. The polarized sports glasses are useful in natural environments such as the mountains, the sea, where the water or the snow can be a vehicle for the strong reflections and the visual disturbances. When practicing sports such as the skiing, the fishing, the mountaineering, it is necessary to use the polarized sports sunglasses.\nThe polarized lenses can be of different colors: grey, brown, pink and green. Depending on the use and the preferred chromatic effect, each colour has different characteristics. The grey lenses are perfect in situations of the direct and intense light, the brown lenses are the most versatile, ideal from the morning until the sunset. Pink lenses have a warm filter and green ones are suitable especially in conditions of variable brightness.\nAt TBD Eyewear, we’re pleased to present our best sellers with polarized green lenses, ideal for sporty use but also suitable for general use. They ensure optimal color perception even in low light conditions and less visual fatigue.\nFor whoever prefers squared acetate sunglasses, the Donegal Black with green polarized lenses will be the perfect ally for your morning golf match. On the other hand, if you cannot do without the round and harmonious shapes, you are spoilt for choice. We have created the honey-colored Welt model in a polarized version, for a dandy style; the Lapel tortoise model, unique acetate sunglasses; the Cran model available in transparent, honey and classic tortoise versions, perfect for an elegant style that never sets.\nAs always, our sunglasses are Made in Italy and handmade by our expert craftsmen, with a unique and elegant design, and obviously polarized.","domain":"optical_engineering"}
{"url":"https://wiki.adeept.com/pub:photosister?rev=1547448423","date":"2020-02-19T17:42:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875144165.4/warc/CC-MAIN-20200219153707-20200219183707-00107.warc.gz","language_score":0.9121216535568237,"token_count":204,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__73608816","lang":"en","text":"This is an old revision of the document!\nA photoresistor is a light-controlled variable resistor. The resistance of a photoresistor decreases with the increasing incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied in lightsensitive detector circuits. A photoresistor is made of a high resistance semiconductor. In the dark, a photoresistor can have a resistance as high as a few megohms (MΩ), while in the light, a photoresistor can have a resistance as low as a few hundred ohms. If incident light on a photoresistor exceeds a certain frequency, photons absorbed by the semiconductor give bound electrons enough energy to jump into the conduction band. The resulting free electrons (and their hole partners) conduct electricity, thereby lowering resistance. The resistance range and sensitivity of a photoresistor can substantially differ among dissimilar devices. Moreover, unique photoresistors may react substantially differently to photons within certain wavelength bands.","domain":"optical_engineering"}
{"url":"https://curezone.com/blogs/fm.asp?i=2445146","date":"2023-04-01T16:39:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950110.72/warc/CC-MAIN-20230401160259-20230401190259-00781.warc.gz","language_score":0.9244681000709534,"token_count":892,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__18754194","lang":"en","text":"How To Use Night Vision With Spy Gadgets Goggles/Scopes\nHave you ever considered how much fun it would be to have superhuman abilities that allow you to see in the dark? Have you ever\nDate: 2/6/2022 9:29:34 AM ( 14 mon ) ... viewed 97 times\nHave you ever considered how much fun it would be to have superhuman abilities that allow you to see in the dark? Have you ever fantasized about starring in your action-packed espionage film set at night? The devices you want to satiate your fantasies are night vision equipment. And among the widely selected platforms is.defendandcarry.com\nThese instruments, which were previously solely accessible to military people, are now available to you and me for private, commercial, or industrial usage. Goggles, scopes, and cameras are all equipment that is used to increase strength or spectral range in a dark area. Sites like check help you get what you want.\nThese gadgets allow users to see in the dark. A decent gadget will let you view a person who is 183 meters away. The gadget employs image enrichment technology, which captures small amounts of light and amplifies the picture for easier viewing. Thermal imaging is another device technique used in thermal optics that use thermal radiation to produce an image from the dark and can detect pictures in the presence of rain, smoke, or fog.\nNight vision infrared technology\nThe usage of infrared machines is yet another breakthrough of these technologies. What was formerly a black image to the naked eye has been turned into monochromatic images with excellent quality, making it more apparent. Those that employ security software in their homes or businesses favor this infrared technology, which is not generally used in military operations.\nSome of the most common varieties of night vision gadgets sold in shops\n- Goggles are night vision equipment with two eyepieces, binoculars, or single lenses that are worn on the face. It is great for continual viewing and can be easily moved from one location to another.\n- Scopes are monocular and may be carried with one hand or placed on a tripod. It’s the ideal device for obtaining a more accurate image of a certain item.\n- Night vision cameras are perfect for monitoring your house or workplace for security purposes.\nFeatures of night vision binoculars and monocles\nMost of these machines contain switches that allow them to switch between radiation and an inert augmentation of the area’s existing luminance. If the night vision gadget is used with infrared instruments, expect a lot of battery usage; therefore bring a charger and additional batteries with you.\nThese technologies have gone a long way since they were only available to the military. We gain from its use as well; it aids ordinary folks like us whether camping or hunting. It also aids experts doing wildlife explorations, as well as police and security personnel, in detecting criminality and concealed objects.\nHowever, depending on the technology used, night vision equipment might be used in two very different ways. Based on the technology used, night vision equipment might function in two very different ways. Image enhancement is one, while thermal imaging is the other.\nThese are the two most common forms of night vision equipment; there are more options to consider while making your decision.\nThermal imaging for thermal optics\nThis approach is capable of capturing an object’s heat. The brighter the hues, the warmer the thing. It’s especially handy if you’re hunting for animals or people because non-breathing materials like rocks and trees don’t show up very well. Thermal optics is the thing to use.Avple\nImage enhancement this technique focuses on light particles that are too low or too tiny in the color spectrum for people to detect. In contrast to thermal imaging, picture enhancement has the advantage of allowing for easier object recognition. This sort of technology is responsible for the green tint in night vision pictures. When the picture passes through the lenses, it reaches a phosphor-coated screen. When electrons activate it, it glows. Because the human eye can see and discern shades of green better than any other color, the phosphors are purposefully colored green. Thermal optics helps in many ways.\nAdd This Entry To Your CureZone Favorites!Print this page\nEmail this page","domain":"optical_engineering"}
{"url":"https://www.livecamcroatia.com/en/news/180-webcam-in-velika-gorica/","date":"2023-01-27T08:33:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494974.98/warc/CC-MAIN-20230127065356-20230127095356-00020.warc.gz","language_score":0.8593245148658752,"token_count":105,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__303399250","lang":"en","text":"The LiveCamCroatia webcam system is increasingly replacing older webcams with new ones with HD resolution.\nSo from now on you can observe the center of Velika Gorica in a new, better picture. The outstanding 180 ° panoramic optics provide an excellent image in high resolution. Rich details and a quality image will best evoke the current atmosphere in the center of Velika Gorica.\nThis view provides you by the University of Velika Gorica in cooperation with the LiveCamCroatia portal.","domain":"optical_engineering"}
{"url":"https://thescriptsolutions.com/2019/03/04/new-canon-eos-rp-budget-full-frame-mirrorless-camera/","date":"2019-05-25T08:48:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257939.82/warc/CC-MAIN-20190525084658-20190525110658-00529.warc.gz","language_score":0.9373887777328491,"token_count":418,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__74635266","lang":"en","text":"New Canon EOS RP Budget Full-Frame Mirrorless Camera\n- 26.2-megapixel image sensor\n- Canon’s new RF mount for Canon EOS RP\n- Also supports EF and EF-S with extra adaptor\n- Coming with 24-105mm Lens, with the price Rs 1,99,490 in India.\nIn India, the EOS R and the EOS RP is going to compete with mirrorless cameras like the Sony A7 Mark 3 and recently launched mirrorless cameras like Nikon Z7 and the Nikon Z6.\nThe Canon EOS RP is based on the new RF mount, which first launch its the Canon EOS R in 2018. After few months of Canon EOS R, Canon has now launched the EOS RP in India. It is coming with more affordable price in India starting from Rs 1,10,495 (body only) and with the lens Canon 24-105mm it comes with the price Rs 1,99,490.\nThe EOS RP uses a 26.2-megapixel full-frame image sensor and comes with features like 4K video recording, eye AF and dual-pixel autofocus. Full-frame CMOS sensor and is powered by the same DIGIC 8 image processor.\nEF and EF-S lenses are also going to fit with EOS RP as Canon is prepared an adapter which can be use with the camera.\nThe best benefit that the EOS RP offering its weight and dimensions. It’s also slimmer and lighter, weighing roughly 485 grams. More specifications include like 4,779 selectable autofocus (AF) points, a native ISO range of 100-40,000, 5fps burst shooting with One Shot AF mode (around 4fps with Servo AF), Dual Pixel AF, 4K video recording at 24fps, a fully articulating touchscreen display and built-in Wi-Fi and Bluetooth. Same as the EOS R, the EOS RP can also be charged through the USB Type-C port.","domain":"optical_engineering"}
{"url":"https://allocatedtech.xyz/a-new-procurement-approach-of-the-led-light-suppliers/","date":"2024-02-27T11:09:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474674.35/warc/CC-MAIN-20240227085429-20240227115429-00143.warc.gz","language_score":0.9655795097351074,"token_count":885,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__36546410","lang":"en","text":"This short article assumes you are already encouraged concerning going ‘LED’ yet desire some details item concepts. In this write-up I would love to present 3 basic product categories that can be used to begin your shift to LED lights. Each suggestion is going to have more than one item possibility that can be customized to your precise demands. Also, each private product itself may different alternatives. We will discuss a few of these alternatives and also just how you ought to deal with picking each. This is essential as LEDs are a new modern technology as well as not every person recognizes what choices are available and even exactly just how to choose them.\nThe initial item category is LED the same level lights. Words the same level is an acronym for parabolic reflector. This is really not applicable to LEDs given that they have lenses as well as are no more dependent on reflectors to develop directional light. Actually the lenses on LED lights are a lot more reliable than reflectors. LED light is directional and also can be regulated precisely with the use of lenses. As long as we are discussing lenses that is going to be the initial point you will have to make a choice on. LED PAR lights can be acquired with different lens angles. Generally you will certainly have choices like 30, 45, and also 60 degree lenses. The lens manages the angle of the light. The tighter the angle the more focused the light, as well as the bigger the angle the more diffuse the light, yet a greater location will be lit up. A 45 level angle is possibly most all objective but visually, and mathematically thirds are nicer or a 60 or 30 degree angle. Usage 60 for general purpose and 30 for highlighting.\nNext when you purchase a PAR light you would certainly have to pick the shade. One of the benefits of LEDs is that you can choose specifically the shade of the light. Typical choices are cozy white 2,800 – 3,800 K, industrial white 4,000 – 5,000 K, and pure white 6,000 – 6,500 K. Each color has its advantages relying on the situation. Warm white is finest for producing ambience, while pure white is a bit brighter as well as creates even more lumens per Watt. For safety and security lights you would certainly use pure white, for a bar most likely warm white.\nLastly, when it comes to LED PAR lights you would traffic light certainly have to choose the variety of Watts. I normally recommend multiplying by 5 to 10 when comparing to incandescents. So a 5 Watt LED resembles a 25 – 50 Watt incandescent. Technically the number ought to be 5 yet in addition to producing extra light LEDs focus it much better, and also this can raise the several to about 10. When making your selections bear in mind it is difficult to equip every opportunity. If you desire industrial white with a 45 level lens you might need to put in a demand. Attempt to intend in advance slightly, and also the added delay is well worth it.\nThe following category is recessed ceiling street lamp lights. LED recessed lights offer comparable alternatives on shade as well as lens angle. When it comes to ceiling lights you would certainly have to select the variety of LEDs. Typical is 3 Watt LEDs so for example you might obtain lights with 3 LEDs for 9 Watts or 5 LEDs for 15 Watts and more. You can make use of the above multiplication to pick the number of lights. LED recessed lights generally are available in their own real estate therefore are easy to set up. LEDs do not create much warmth, yet keep in mind to not place insulation straight in addition to the light. I don’t think you were mosting likely to do that. LED recessed lights can have flexible heads as well as hardened glass treatments. Making use of a grid of such lights to light a big location can develop a nice result. Effectively put LED recessed lights can be a nice enhancement to your home illumination.\nUltimately, I would like to briefly discuss light bars, as well as light strips. These can be utilized for accent illumination, cabinet illumination, as well as wall surface lighting. Once more properly placed these can be made use of to achieve some very wonderful impacts. If you are creating a brand-new addition to your house you might intend to use light bars or light strips to highlight the functions or add an extra subtle lights.","domain":"optical_engineering"}
{"url":"http://www.techridgevision.com/technology/","date":"2017-04-28T12:08:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122955.76/warc/CC-MAIN-20170423031202-00387-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9044933915138245,"token_count":602,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__63107046","lang":"en","text":"Advanced Eye Care Technology\nAdvanced medical diagnostic technologies previously only available in major medical centers are now available to area eye doctors and patients alike. We pride ourselves on our ability to stay up to date on the latest advancements in diagnostic technology and incorporate this technology into our electronic health records to facilitate efficient and top quality eye care. At Tech Ridge Vision, computerized examination instruments are used to supplement, rather than replace, personalized care and physician expertise.\nAll procedures are covered by medical insurance and are priced based on the Medicare fee schedule, providing low out of pocket expenses for the uninsured and patients with high or unmet deductibles.\nMarco 3-D Wave™ HD Vision Tester\nThis technology quickly scans the eye for a wavefront analysis of your HD vision prescription, night vision prescription, pupil size, corneal shape and cataracts. In short, the system gives us vision diagnostic capabilities that in the past were simply unavailable.\nZeiss Cirrus™ HD-OCT\nThis laser retinal scanner provides wide field, high resolution scans for examination of retinal thickness and contour, optic nerve topography, as well as iris and corneal position. This instrument is helpful in obtaining retinal analysis for a wide variety of eye conditions, ranging from chronic conditions such as glaucoma, diabetes, and macular degeneration to acute conditions such as retinal detachment, stroke, or tumor. It also provides advanced diagnostic imaging of the front of the eye for evaluation of eye tumors, lens implant complications, cataracts, cornea disease and glaucoma.\nZeiss Visucam Pro™\nThis retinal camera documents various eye diseases, facilitating diagnosis and better medical management. This instrumentation is invaluable to an eye care physician because it is our best means of distinguishing between a stable and a progressing condition. Retinal photography is useful in managing such conditions as eye tumors, glaucoma, diabetic eye care, hypertensive eye care, floaters, and retinal tears or detachments.\nKonan™ Specular Microscope\nThis microscope provides a corneal cell count and high resolution corneal evaluation for advanced diagnosis of corneal disorders such as Fuch’s dystrophy, corneal edema, lens implant complications from cataract surgery, and gradual cell damage from long-term wear of contact lenses or dry eye syndrome.\nTelScreen™ EyeRes Digital Imaging\nThis imaging system allows us to record high resolution video and photography of all structures of the eye so that we may provide medical image documentation of disease or therapy progression. We have also found this system to be an excellent way for us to educate you on your eye health status.\nHumphrey Matrix® Perimeter\nThis technology allows for accurate assessment of neurological conditions such as stroke and brain tumors, as well as vision disorders such as glaucoma and macular degeneration. It accurately evaluates for central and peripheral visual field loss.","domain":"optical_engineering"}
{"url":"https://mcconnellarchitect.com/2021/07/16/which-is-better-for-a-sunset/","date":"2021-10-27T12:36:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588153.7/warc/CC-MAIN-20211027115745-20211027145745-00005.warc.gz","language_score":0.9456177949905396,"token_count":1091,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__84856715","lang":"en","text":"When the sun sets, the first thing you notice is how much light it casts across the sky.\nBut what about the other wavelengths?\nIf you were a fan of the sunsets of the late 20th century, the answer may not be the bright colors but the contrast between them.\nTo help us decide, let’s take a look at the spectrum of the morning sun.\nThe light is reflected by water droplets in the sky, but it’s the wavelength of light at which you see this reflected light that is important.\nA good example of this is a sunrise, in which the water droplet reflection reflects a much larger portion of the sunlight back towards you than it does at sunset.\nThis allows for a better view of the sunrise from a safe distance.\nThe longer the day, the more contrast you’ll see.\nSunrise and sunset wavelengths are also quite different, but that’s not necessarily a bad thing.\nIn the mornings, the sun is only about a half-degree above the horizon and you’re seeing the whole spectrum.\nIn other words, the sunlight is just as bright at the sunrise, even though you’re only looking at a fraction of it.\nThis is why we often see the sunrise in our city skyline, the way it would look at night.\nThe sunsets are much, much darker, with the Sun set much closer to the horizon than it is at sunrise.\nThis difference in the wavelengths helps explain why the sun’s position on the sky is a big deal in some locations, and a big pain in others.\nSunrises and sunsets have different wavelengths of light, but they’re also very similar.\nSunlight is polarized to be reflected and refracted.\nThe polarization of light is the way light is focused in our eyes.\nThe light that we see at the horizon reflects light at different wavelengths.\nFor example, the blue part of the spectrum (the light that reaches our eyes) is mostly absorbed by the retina, and the red part is mostly scattered by the cornea.\nAs a result, the red light is much more intense, while the blue light is less intense.\nSunlight also has a wavelength.\nAs it falls on the Earth’s surface, it bounces off of the planet and bounces back.\nIn Earth’s atmosphere, this bounces off the atmosphere and gets reflected back to the Earth, which bounces it off again, and so on.\nThis makes the Sun appear much, very small in the skies above us, but in the far reaches of space, it looks much, far bigger.\nTo find out which wavelengths are more useful for viewing the sun at sunset, we need to look at how the Sun moves.\nIf the Sun was always perfectly still, then we’d never have a chance to see it.\nBut the Sun is moving at nearly constant speed, and that motion makes it possible to see a very different scene from what we would otherwise see.\nThe Earth’s rotation means that the Sun’s path around the Sun changes, making the sky darker.\nThe way the Earth spins also makes it difficult for us to see objects that we could never see at sunset due to their positions on the sunlit sky.\nThe Sun is an extremely bright object, but even when it’s at its absolute brightest, it doesn’t appear to be shining.\nInstead, the Sun seems to be just barely visible in the middle of the night sky, and then disappears.\nIt’s a very unusual sight, and it’s one that we often miss because of our viewing distance.\nSunrises are also much darker than sunset.\nBecause the Sun appears to be moving much faster, it appears as if it’s moving much slower than it actually is.\nIt also moves in a way that makes it easier for us not to see the Sun as we see it from above.\nThe same phenomenon happens when we look at stars in the night skies.\nThe Sun appears bright and shining because the light from the stars is reflecting off of water dropt on the ground, but we can’t see it because we’re so far away.\nThe only way to really see the sun in the morning is if you’re on a fixed position.\nBut because the Sun rises at different times each day, you’ll have to look in different directions to find the sun.\nWhen you’re sitting at your desk, the sky in the east and west will be much more clear than the sky over your house, but you’ll miss the Sun if you look to the west.\nIn the evening, the night horizon is only a few degrees above the sky at sunrise, but this means you’re probably not going to see any stars or any of the planets.\nAnd even when you do, the horizon is a dark grey in the evening sky, not even a full moon.\nYou can’t really see planets beyond the inner planets.\nAs for the Sun, the brightness it gives off varies based on the time of day.\nAt dawn and dusk, the intensity of the Sun increases, but when it sets, it","domain":"optical_engineering"}
{"url":"https://store.cim.org/en/vis-nir-spectroscopy-applied-to-copper-flash-smelting-processes","date":"2023-03-21T07:59:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943637.3/warc/CC-MAIN-20230321064400-20230321094400-00719.warc.gz","language_score":0.8907533884048462,"token_count":542,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__40833228","lang":"en","text":"Additonal authors: Toro, C.A.. Book title: Proceedings of the 58th Conference of Metallurgists Hosting Copper 2019. Chapter: . Chapter title:\nTorres, S. N.\nThis work presents visible-near infrared (VIS-NIR) spectroscopy measurements, and signal analytical techniques to characterize minerals and relevant pyrometallurgical process variables for the copper extractive industry. Data signal processing techniques such as baseline correction and numerical analysis are used to estimate the continuous and discontinuous spectral components. Such spectral components are used to estimate the process temperature, and patterns such as the integrated radiation. Also, metal combustion emissivity calculation are depicted. Our findings suggest that VIS-NIR spectroscopy may be a suitable technique to assess the process condition state, appearing as an interesting sensing alternative.\nAlthough the flash smelting process is one key stage in the copper extractive industry, representing about 40% of copper matte production worldwide (Cantallopts, 2017), few attention is dedicated to develop sensing solutions to assess process variables, such as mineralogical composition and temperature, in the feeding and bleeding stages, compared to the steel industry (Strakowski, et al., 2014). In this process and other industries, e.g. the thermoelectric power generation one, combustion and particularly the generated flame are the production chain’s heart. Since the flame is a highly radiative emitting process where chemical and physical transformations take place, many works had been dedicated to characterize the combustion state by sensing its radiation using optical and photonic technologies (Ballester & García-Armingol, 2010). In this context, this work aims to contribute with visible-near infrared (VIS-NIR) spectroscopy and pyrometry techniques to retrieve relevant information from a laboratory scale flash smelting process.\nOn the other hand, since photonic instrumentation allow us to perform contactless measurements of emitted, absorbed, transmitted or scattered radiation, it appears as a suitable technique for sensing process properties in harsh environments, e.g. high temperature processes. One of these techniques is the Visible- Near Infrared (VIS-NIR) spectroscopy, which provides information about the spectral radiation intensity distribution, in this work, the emitted flame’s radiation. It is well known in combustion research that the spectral emission from a flame is composed by a black body continuous radiation background, molecular emissions, elemental emissions and additive noise features (Arias et al., 2011). To make sense of such information signal processing techniques are needed, here we propose to analyse the continuous and discontinuous spectral components separately.","domain":"optical_engineering"}
{"url":"https://almeidaseamaral.pt/0/en/gases/42","date":"2023-12-02T12:34:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100399.81/warc/CC-MAIN-20231202105028-20231202135028-00723.warc.gz","language_score":0.9355013370513916,"token_count":102,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__131315194","lang":"en","text":"707 105 555\nThe manufacture of optical fibers requires several gases of very high purity in the various stages of its production, due to the great exigency of rigid specifications of the Telecommunications industry.\nThe three main sectors of the Lighting industries are: general lighting, automotive lighting and opto-electronic semiconductors. An example of this is Xenon car lights, which use half the energy. Rare gases - such as Argon and Xenon - are a key part of the product and the production.","domain":"optical_engineering"}
{"url":"https://lokmera.md/shop/category/atomic-spectroscopy","date":"2024-04-23T23:18:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818835.29/warc/CC-MAIN-20240423223805-20240424013805-00391.warc.gz","language_score":0.8574123978614807,"token_count":364,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__18303291","lang":"en","text":"The Agilent 240 AA system combines rugged and reliable hardware with easy-to-use software, making it ideal for low-throughput laboratories. Featuring true double-beam optics, D2 background correction, and the Mark 7 flame atomization system (standard), the 240 AA system is well suited to environmental, food, and agriculture applications. The Mark 7 spray chamber is simple to use, with twist-and-lock assembly and plastic components designed to handle the challenging samples encountered in materials and mining applications. The 240 AA can be fitted with a full range of AA accessories to further extend its capabilities.\nDesigned for dusty, corrosive environments—completely sealed optics with quartz overcoated mirrors; optional air purge continually cleans the inside of the instrument to exclude corrosive vapors.\nFast response background correction—the high intensity deuterium background corrector has a fast 2-ms response time ensuring accurate correction of transient background signals.\nEasy lamp maintenance—the lamp is immediately accessible for easy adjustment or replacement without needing to remove the instrument covers.\nAutomation to fit the need and budget—Automatic wavelength and slit selection, four fixed-lamp positions for quick, reliable lamp changes, and a next lamp warm-up feature that saves analysis time.\nExpandable—analyze mercury and hydrides at trace ppb levels using the continuous flow vapor generation accessory (VGA 77). Add the ETC 60 for unattended, flameless atomization of hydride elements.\nUpgradable—The 240 AA can be easily upgraded at any time.\nReduces ownership costs—Rapid troubleshooting and fault diagnosis keep your lab up and running faster. The Telediagnostics option connects to our worldwide network of on-line support personnel.","domain":"optical_engineering"}
{"url":"https://beith-tikvah.nl/28565_ir_sensorname.html","date":"2022-08-14T16:33:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572043.2/warc/CC-MAIN-20220814143522-20220814173522-00284.warc.gz","language_score":0.9175620675086975,"token_count":1421,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__15381969","lang":"en","text":"20190923· What is an infrared sensor? An infrared sensor is an electronic device, that emits in order to sense some aspects of the surroundings. An IR sensor can measure the heat of an object as well as detects the types of sensors measures only infrared radiation, rather than emitting it that is called as a passive IR sensor.\n20201211· In this project, a proximity sensor built using IR LED and IR photodiode is used. The proximity sensors built using IR LEDs can sense objects at a short range of few centimeters. The sensor is interfaced with Arduino for application demonstration. In this project, we simply fast blink an LED as the sensor detects a near approaching object.\nIR Sensor. The infrared Obstacle Sensor Module has a builtin IR transmitter and IR receiver that sends out IR energy and looks for reflected IR energy to detect the presence of any obstacle in front of the sensor module. The module has an onboard potentiometer that lets users adjust the detection range.\n20180830· IR LED emits light, in the range of Infrared frequency. IR light is invisible to us as its wavelength (700nm – 1mm) is much higher than the visible light range. IR LEDs have light emitting angle of approx. 2060 degree and range of approx. few centimeters to several feets, it depends upon the type of IR transmitter and the manufacturer.\n20200112· An Infrared sensor or commonly known as IR Sensor is an electronic device, used to sense the heat of an object and motion of an object. Basically, an IR Sensor can detect Infrared radiation that is not visible with naked eyes. A body when heated radiates infrared light …\n20191223· When it comes to distance sensors, there are many types; ultrasonic, IR proximity, laser distance, etc. and selecting the right one for your next Arduino or Raspberry Pi project could be a tough task to handle. Hence, today we''ll be looking at the plethora of distance sensors, its types, and answering which one is best suited for you!\nBuilding an IR Bridge with the SmartThings ThingShield. Project tutorial by Juan Pablo Risso. 10,434 views. 10 comments. 28 respects. This project is used to measure temperature by Infrared thermometer automatically and inform result by speaker. It also comment your result.\n20180711· Infrared Sensor Library for Proteus. First of all, download the Library files of this IR Sensor by clicking the below button: Download Infrared Sensor Library for Proteus. After downloading this file extract it and you will find three Library files in it, named as:\n20190729· An infrared (IR) sensor is an electronic device that measures and detects infrared radiation in its surrounding environment. Infrared radiation was accidentally discovered by an astronomer named William Herchel in 1800. While measuring the temperature of each color of light (separated by a prism), he noticed that the temperature just beyond the ...\nA passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIRbased motion sensors are commonly used in security alarms and automatic lighting applications. PIR sensors detect general movement, but do not give information on who or what moved.\nHow UV, IR and Imaging Detectors Work. Fire detection is based on various properties of fire such as smoke emission, a rise in temperature and optical radiation emission. In large spaces or outdoor environments, optical flame detection is one of the fastest and most reliable methods of detection. Such types of detection are based on radiation ...\nMaking an Analog IR sensor is relatively easier than making a digital one. All we need is an IR LED and a photodiode, both with series resistors with them. To make one, just remove everything on the right (starting from the IC) of the circuit diagram given below in the “How Does It Work” section.\n20170126· The infrared detectors are the pyroelectric sensors which detect the light spectrum’s infrared wavelength , They are usually emitters as well , They can be made of a phototransistor , photodiode , or photoresistor as these are basically the same device , They have many uses and they are essential to the transference of infrared light .\nAdvantages and Disadvantages of Infrared sensor. This page covers advantages and disadvantages of Infrared mentions Infrared sensor advantages and Infrared sensor disadvantages. Definition: The Infrared sensor is a device which uses infrared waves to sense characteristics of is used to measure heat emitted by object or human beings.\nThese are great for Arduino gardening projects. Buy on Amazon. Temperature Sensor. The KY013 Analog Temperature sensor measures ambient temperature from 55℃ / +125℃ with an accuracy of ± ℃. This is commonly used to measure the temperature of devices and enclosures of your Arduino projects. Buy on Amazon.\nLearn: how HCSR501 motion sensor works, how to connect motion sensor to Arduino, how to code for motion sensor, how to program Arduino step by step. The detail instruction, code, wiring diagram, video tutorial, linebyline code explanation are provided to help you quickly get started with Arduino. Find this and other Arduino tutorials on\n20180929· Infrared Sensor is most used sensor in wireless technology where remote controlling functions and detection of surrounding objects/ obstacles are involved. This post will discuss about what is Infrared Sensor, its working principle, how it works, types, applications, advantages and disadvantages.\n20180723· 10 IR Sensor projects that you can do. As artificial replications of human senses continue to give robots all the capabilities required to come to life. The line separating the two fades. Among all the senses vision is a vital sense in humans. Allowing us to learn more about the surrounding world than we do with any of the other four senses.\nThermocouples: These are voltage devices that indicate temperature measuring with a change in voltage. As temperature goes up, the output voltage of the thermocouple rises. Resistor temperature detectors (RTD): The resistance of the device is directly proportional to the temperature, increase in a positive direction when the temperature rises resistance going up.\n20181006· Hey guys! Today we are going to learn about IR sensors, their working, types, and pinout. After covering the basics of IR sensors, you will learn how to Hey guys! Today we are going to learn how to use or how to interface an IR sensor with Arduino. So here is your Beginners Guide To IR Sensor.\n20190722· Infrared Sensor Tutorial for Arduino, ESP8266 and ESP32. In this tutorial you learn how to use an infrared sensor in combination with the NEC Infrared Transmission Protocol. At the end of this tutorial, you build a project with the VS1838B infrared sensor to read and encode infrared signals from a …","domain":"optical_engineering"}
{"url":"http://ingleby.en.alibaba.com/product/682256074-213133972/cheap_price_4_lens_4_heads_RGBY_multi_color_dj_equipment_stage_disco_laser_lights.html","date":"2018-07-23T13:09:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676596463.91/warc/CC-MAIN-20180723125929-20180723145929-00025.warc.gz","language_score":0.8351300954818726,"token_count":721,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__83454073","lang":"en","text":"cheap price 4 lens 4 heads RGBY multi color dj equipment stage disco laser lights\nThis laser christmas projector lights outdoor,creat multi color rgb color high beam laser light , It's the best choice to buy laser machine for KTV, club, pub, dj, party etc.\n- One piece into one colorful box or inner carton.\n- 4,12 or 24 pieces into one outer carton.\n- Air shipping, China post (E-Packet), Express (DHL, UPS, FEDEX, EMS)\n- Sea shipping, from Shenzhen port or Guangzhou port to any other’s destination port.\n1. Payment, 30% T/T as deposit before production , 70% balance before shipment .\n2. Price Term, EXW Ingleby factory, FOB Shenzhen, CIF your destination port.\n3. Leading Time, within 3- 10 working days after payment confirmed\n-Small quantities of samples we can accept.\n-Sample delivery time is around 1-5 days after confirmation\n-We accept OEM order and we can help customer design\n-We also offer ODM service to customer when needed\n- We offer quick after-sale service\n- Any quality issue, once confirmed is our responsibility, we will compensate our customer\nIngleby led stage lights advantage:\n1. Our purchase department always get the better price in the same qulity parts, it caused we have competitive price for customers.\n2. Our QC workers has more than 8 years inspection experiences, good at control the quality.\n3. We have a excellent professional sale team including the domestic sellers and foreign sellers, reply you fast in 24 hours.\n4. OEM service accepted, we can make the goods in customize packages in lower price.\n-Q1. Are you factory?\nA1. Yes, we are factory, welcome to visit us in Dongguan City, Guangdong province.\n-Q2. Do the stage lights have warranty?\nA2. Yes, one year.\n-Q 3. Do the lights have Minimum Order Quantity asked?\nA3. In our standard package, we don’t have MOQ asked, any quantities are acceptable.\n-Q4. How to classify the laser product?\nA4. The laser class is depending on the Laser output power.\nOutput laser power\nBasically, no danger for eyes, no danger laser radiation.\n0.4 mw - 1 mw\nCaused to be dizzy, close eyes to protect ourselves, avoid direct eye exposure.\n1 mw - 5 mw\nAvoid direct eye exposure\n5 mw - 500 mw\nIt’s danger to direct see the beam in 1 meters, avoid direct eye exposure\nEasy to catch a fire, children can’t see the laser directly by eyes.(dangerous)\n-Q5. How about laser class requires in different area?\nA5: Different area has the different requires about the laser class.\nLaser rating requires\nOur mini laser light is belong to Class Ⅱ\nMini laser light, outdoor laser light are belong to Class ⅢA\n-Q6. Do Ingleby has IP65 outdoor laser light?\nA6. Yes, we have IP65 outdoor laser light.\n-Q7. Except the outdoor laser light, what’s the IP rating of your products?\nA7. Most of our products are IP33.","domain":"optical_engineering"}
{"url":"https://www.digitaldogsitter.com/help/image-quality","date":"2023-12-05T13:21:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.17/warc/CC-MAIN-20231205105136-20231205135136-00221.warc.gz","language_score":0.951125979423523,"token_count":272,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__229331492","lang":"en","text":"In addition to audio, Digital Dogsitter can also record video of your dog being alone. However, to guarantee a good and clear image quality, you should keep a few things in mind.\nRegardless of the device or camera you use, one of the most important things when recording a video is adequate lighting of the space. No camera on the market can shoot a clear and grain-free image in the dark (except for infrared cameras), so the better quality video you want to record, the more light should enter the room from windows and lighting.\nAlmost every digital device nowadays has some kind of camera, but there are big differences between different devices and cameras. The newer the device, the better the quality of the camera usually is. Separate web cameras are also available for computers (laptops and desktop computers), which can be connected either via a USB cable or a wireless connection. In most cases, a separate camera enables the best image quality. In addition to better image quality, with a separate camera it is also possible to position the camera more freely.\nFor most mobile devices and laptop cameras, there are also field of view widening lenses available that can be attached to the camera. In this way you can get a better view of a large room, which normally a camera with a rather narrow field of view would not be able to see.","domain":"optical_engineering"}
{"url":"http://www.bbc.com/news/av/science-environment-31499139/hubble-telescope-in-terrific-state","date":"2017-11-20T09:51:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805977.0/warc/CC-MAIN-20171120090419-20171120110419-00438.warc.gz","language_score":0.9357778429985046,"token_count":112,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__228777899","lang":"en","text":"Hubble telescope 'in terrific state'\nScientists say they have every hope that the Hubble Space Telescope will keep working for at least another five years, perhaps more.\nThe famous observatory is about to celebrate its 25th birthday.\nKey figures on the mission told a major conference in California that the instruments it uses to detect objects on the sky are all in perfect health.\nNasa's Hubble project scientist Dr Jennifer Wiseman gave our correspondent Jonathan Amos an update on the famous observatory.\n17 Feb 2015\n- From the section Science & Environment","domain":"optical_engineering"}
{"url":"https://www.multixdetection.com/technology/spectometry/","date":"2022-01-28T12:10:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305494.6/warc/CC-MAIN-20220128104113-20220128134113-00392.warc.gz","language_score":0.8937755823135376,"token_count":282,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__239455613","lang":"en","text":"The difference between X-Rays and visible light rays is the energy level of the individual photons.\nMost of the time the objects that are analysed are located on a conveyer belt and moving through an X-Ray beam.\nX-Ray photon detectors capture the transmitted x-ray photons after have passed throughout the objects on the conveyor belt.\nThe ME100 counts the transmitted photons and measures their energy at 8 bit resolution (256 energy “bins” or levels). This enables the attenuation spectra to be obtained for each object on the conveyor belt.\nHaving the complete x-ray attenuation spectra of different objects in the image enables objects with similar atomic composition to be discriminated.\nME100 system provides real time capabilities to count x-ray photons at high flux levels and precisely measure the energy of each photon. The system thereby enables attenuation spectra to be reconstructed over 256 energy bins between 20 keV and 160 keV.\nThanks to the high spectral quality, material specific x-ray signatures can be measured with significantly increased accuracy and precision giving rise to improved material discrimination and identification.\nCurrent maximum counting rates range from 6 to 8 mega photon counts per second per square millimeter.\nThis makes this technology compatible with most of the transmission “linescan” x-ray imaging technology in terms of belt speeds and x-ray photon flux.","domain":"optical_engineering"}
{"url":"https://ecsa-5.sciforum.net/profile/482724","date":"2018-12-16T03:58:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376827252.87/warc/CC-MAIN-20181216025802-20181216051802-00543.warc.gz","language_score":0.9083090424537659,"token_count":616,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__243548880","lang":"en","text":"Track-etched polycarbonate membranes (TEPM) are commercially available membranes typically used in particle filtration due to the pores present in their surfaces. This porous structure reminds of that of a Fabry-Pérot interferometer made on porous silicon, an optical structure long employed in optical chemical sensing. Because of this morphological similarity, we hypothesized that TEPM could exhibit a similar optical response and thus being useful for creating simpler to fabricate, easily available and low cost chemical sensors. To asses this hypothesis, we investigated the optical response of TEPM in the infrared range, improved it by chemically attaching the membranes to a silicon flat surface and then, performed reflectivity measurements in presence of different concentrations of ethanol.\nWhen exposing a TEPM to a change of the refractive index of the medium it is surrounded by (air) by placing a drop of ethanol, with a higher refractive index, we can observe a shift of its spectrum towards higher wavelengths. This indicates the presence of the solvent, and we could check that the bigger the concentration, the bigger the magnitude of that shift. Furthermore, when the solvent is evaporated the spectrum returns to its initial position, which allowed us to perform different concentration sensing steps using the same sample. These promising results, although early, could indicate the utility of these membranes to easily fabricate cheap chemical sensors and, probably, optical biosensors as their surface can be chemically modified.\nCardiac troponin I (cTnI) is currently the gold-standard biomarker for the fast and early detection of a myocardial failure. Within this context, in this work we report a computational study of the interactions of the cTnI antibody (αcTnI) capture probe with cTnI and its principal interferon, skeletal troponin I (sTnI). This study allows having a better understanding of those biochemical interactions and to computationally predict the binding performance and the selectivity of the αcTnI to cTnI versus sTnI. This information is very relevant for the development of analysis systems for myocardial failure diagnosis based on cTnI detection.\nThe computational study was performed using different simulation platforms. FTSite and FTMap were used for the determination and mapping of the binding sites sequences . Then, FTDock and pyDock were used to study the molecular dockings . Thus, several energies parameters were generated and represented as well.\nThis study can also be applied to a wide range of different scenarios were other targets (e.g., lipids, oligonucleotides, etc.) or other applications (e.g., pharmacological drug design) are considered.\n Y. Yuan, J. Pei, L. Lai. Curr. Pharm. Des. 2016, 19 (12), 2326-2333.\n M. Cheng, L. Blundell, J. Fernandez-Recio. Proteins. 2007, 68, 503-515.","domain":"optical_engineering"}
{"url":"https://www.highlandstoday.com/the-james-webb-space-telescope-is-fully-aligned-and-ready-to-observe-the-universe/","date":"2023-12-04T06:59:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100525.55/warc/CC-MAIN-20231204052342-20231204082342-00036.warc.gz","language_score":0.9097596406936646,"token_count":614,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__26703994","lang":"en","text":"Subscribe to CNN’s Wonder Theory science newsletter. Explore the universe with news of fascinating discoveries, scientific advances and more.\nJames Webb Space Telescope is ready to observe the universe.\nThe massive glass of the space laboratory, capable of observing the most distant parts of space, is now completely aligned, According to NASA’s web team.\nThe Web, hailed as the world’s leading space laboratory, has successfully completed several important steps in the last few months in refurbishing its 18 gold glass parts.\nDecember 25 The glass is too large to fit inside the launched rocket. After reaching an orbit One million miles from Earth In January, the Web began the careful process of spreading and aligning its glass.\nCan be seen inside the web Atmospheres of extraterrestrials And Consider some of the first galaxies The universe was created after the beginning by observing them with infrared light invisible to the human eye.\nThe first high-resolution images of the web cosmos are not expected until the end of June, as tracking equipment still needs to be calibrated. But test results released by NASA on Thursday show clear, well-focused images capable of capturing four of the observatory’s instruments. Together, these images share the full view of the telescope. Webb’s glasses transmit focused light from space to each instrument, and those instruments capture images.\nFor the experiment, Webb observed a small neighboring satellite galaxy called the Big Magellanic Cloud. The dense field of a galaxy with hundreds of thousands of stars can be seen in experimental images.\nLee Feinberg, Web Optical Telescope Organ Manager at NASA’s Goddard Space Aviation Center, said: “These remarkable experimental images of the successfully aligned telescope demonstrate what can be achieved when people across countries and continents have the bold scientific vision to explore the universe.\nSince the telescope team is already performing better than expected, it expects it to be higher than the goals to be achieved.\n“These images have profoundly changed the way I view the universe,” Scott Acton, Paul Aerospace’s web wave perception and control scientist, said in a statement. “We are surrounded by the symphony of creation; There are galaxies everywhere! My hope is that everyone in the world can see them.\nAn earlier image, shared in March, shows that the Web can use individual parts of its glass as a giant 21-foot, 4-inch (6.5-meter) mirror and capture light from a star.\nFor the next two months, the team will ensure that all scientific instruments are calibrated.\nEach tool has a number of specialized detection tools with custom equipment to help achieve Webb’s scientific objectives, and all tools must be configured before they can be declared ready.\nThis summer, let’s take a look at the first shots of the heat that can unravel the mysteries of the universe.\n“Friend of animals everywhere. Devoted analyst. Total alcohol scholar. Infuriatingly humble food trailblazer.”","domain":"optical_engineering"}
{"url":"http://www.excaliburcutlery.com/fenis-bt10-bike-light","date":"2017-10-18T02:01:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187822668.19/warc/CC-MAIN-20171018013719-20171018033719-00511.warc.gz","language_score":0.8820638656616211,"token_count":181,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__181612456","lang":"en","text":"Availability: In Stock\nThe Fenix BT10 professional bike light features broad floodlight, close-in visibility and long-range illumination. BT10 employs the neutral white LED featuring the advantages of strong penetration power and good color rendering, which helps night riders better identify the color of objects and outdoor conditions, ensuring safety when mountain biking, touring, commuting, etc.\nWith the strong innovation capability, Fenix lauched the first bike lights with Dual Distance Beam System, producing close-in visibility and long-range illumination as well as broad flood beam. With the user-friendly structure design, quality material and waterproof to IPX-6 standard, Fenix bike lights are the best choice for professional riders and ensure the users a safe and excellent riding experience during the night riding.\nThe Fenix BT10 professional bike light features broad floodlight, close-in visibility and long-range illumination.","domain":"optical_engineering"}
{"url":"https://kellyovl.en.made-in-china.com/","date":"2018-02-23T19:44:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891814833.62/warc/CC-MAIN-20180223194145-20180223214145-00194.warc.gz","language_score":0.8699340224266052,"token_count":156,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__135870981","lang":"en","text":"The 4f, No.2 Building, Nanjing Economic & Technical Development Zone, Nanjing, Jiangsu, China\n|Please sign in to view contact details|\nAccount Registered in:\nLast Login Date:\nJul 18, 2017\nOVL (Nanjing) Electronics Co., Ltd., is being engaged in the manufacture of many kind of mini lamps and relative materials, such as CCFL, LCD CCFL backlight, CCFL with wire, EEFL, CCFL ring, CCFL PC kit, CCFL Fan, Sound Controller, UV Lamp, LCD LED backlight, LED light bulb for LCD, LED strip, CCFL inverter, LED panel light, LED X-ray viewer, LCD Backlight components, it was established in 2001.","domain":"optical_engineering"}
{"url":"https://mycryptojourney.blog/?p=28019","date":"2022-06-30T01:48:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103646990.40/warc/CC-MAIN-20220630001553-20220630031553-00584.warc.gz","language_score":0.8450286984443665,"token_count":1406,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__193743940","lang":"en","text":"Grobs Basic Electronics 11th Edition Pdf Download\nThere are two different tests for finding out how strong an electrical circuit is – the triangle test and the loop test.1. Field of the Invention\nThis invention relates to a laser recording apparatus for forming images on a photosensitive material. More particularly, the invention relates to a laser recording apparatus which uses a photosensitive material comprising a support and a photosensitive layer provided thereon, on which the irradiation of laser light is performed from an elliptic cross section aperture which is formed in a developer unit of the apparatus and which corresponds to the recording image to be formed.\n2. Description of the Related Art\nIn the field of laser recording, a laser beam of a short wavelength is modulated based on an original image signal to be recorded, and this modulated laser beam is irradiated onto a photosensitive material thereby to form an image. To record the image on the photosensitive material, a solid laser of a specific wavelength is used. Further, in the field of laser recording, it is generally known that the quality of the image-recorded image is largely dependent on the pattern shape of an aperture which is used to control the intensity of the laser beam used for image recording (hereinafter simply referred to as an “image formation aperture”).\nThere are some aperture shapes which have been proposed as an example of the image formation aperture. For example, Japanese Unexamined Patent Publication No. 06(1994)-84106 discloses the following aperture shape as an example. Specifically, a linear image formation aperture is extended so as to be curved in such a way that its image formation direction is inclined with respect to the moving direction of the photosensitive material, so that the intensity of the laser beam at a specific location is controlled by adjusting the scanning speed thereof in accordance with the inclination of the image formation aperture. In addition, Japanese Unexamined Patent Publication No. 05(1993)-177203 discloses an aperture shape such that the image formation aperture is linearly rectilinear and extended so as to be curved or arcuate, the center line of which is parallel to the direction of the scanning movement of the photosensitive material.\nHowever, when it comes to the above conventional techniques, the following problem occurs. That is, when the image formation aperture is formed in an elongated shape, it is possible to control the intensity of the laser beam by adjusting the scanning speed of the laser beam in accordance with the shape of the elongated image formation aperture. However, when a rectangular image formation aperture is https://blueridgealchemy.net/felix-crack-keygen-updated/\n“The eleventh edition of Grob’s Basic Electronics should make an excellent initial entry point for the study of classical basics of electronic physics and its application to the design of circuits and components.. a fast and accurate PSpice simulation mode.\nGrobs Basic Electronics 11th Edition Solutions Manual by Mitchel E. Schultz Pdf\nGrobs Basic Electronics Solutions Manual 11th Edition Pdf DownloadGrobs Basic Electronics 11th Edition Solutions Manual – Free sample of the Grob Basic Electronics Solutions Manual is available. This download is provided to help you with your homework and to give you a practice with the understanding of the exercises and their meaning.\nElectronics-Oslo-1. The first edition of this book was published in 1951. The second edition was published in 1965 as the first Canadian Guide. The third edition was published in 1967 as the second Canadian Guide.. in Electrical Engineering (OSLO), or contact the editor.\nGrobs Basic Electronics 11th Edition Solutions Manual | MyGrocers\nObjective: Grobs basic electronics solutions manual in pdf format is available here. For more info visit our website\nGrob’s Basic Electronics Solutions Manual 11th Edition PDF – Ex-Libris\nHow to Open Grob’s Basic Electronics Solutions Manual 11th Edition as PDF in. Independent self study book manual for the Grob Basic Electronics Solutions 11th edition.\nGrob’s Basic Electronics Solutions Manual 11th Edition Gebundene ISBN 1-3526-4884-9. Grob’s Basic Electronics Solutions Manual 11th Edition. Gebundene Ausgabe [PDF] Skript: Grobs Basic Electronics Solutions Manual 11th Edition. Titel: Grob’s Basic Electronics Solutions Manual 11th Edition. Herkunft: Grob’s Basic Electronics Solutions Manual 11th Edition. Gutachten: Grob’s Basic Electronics Solutions Manual 11th Edition. Wissenschaftliche Art: Grob’s Basic Electronics Solutions Manual 11th Edition. ISBN-10: 1-3526-4884-9. ISBN-13: 978-3526-4884-3. Zitate: z. Grobs Basic Electronics Solutions Manual 11th Edition Gutachten was last modified: May 2nd, 2018.\nProfessional solutions manuals for the above course manuals also available in Adobe Acrobat format for viewing on a PC or Mac. The manuals are available below: *Best Books for Electrical","domain":"optical_engineering"}
{"url":"https://0-bmcmolcellbiol-biomedcentral-com.brum.beds.ac.uk/articles/10.1186/1471-2121-10-16/figures/4","date":"2021-10-18T03:42:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585196.73/warc/CC-MAIN-20211018031901-20211018061901-00713.warc.gz","language_score":0.8407303690910339,"token_count":222,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__199043407","lang":"en","text":"Comparison of phase contrast, fluorescence and SPR imaging of fixed vSMC 24 h after plating on 300 μm squares of fibronectin separated by 50 μm lines of PEG-thiol. A) Phase contrast (left frame) and Texas Red fluorescence staining (middle frame) images acquired with a 10×/0.3 N.A. objective on an inverted optical microscope; the SPR image (right frame) was collected on the instrumental set up described herein using 470 nm incident light. The color scale bar indicates reflectivity values. The SPR image displays distinct intensity differences between PEG-thiol regions (dark blue), areas of fibronectin (light blue) and cell-substrate contacts (green to red). The spatial scale bar indicating 100 μm applies to all images. B) Comparison of contrast using the three methods of imaging features under the white lines in (A). C) Selected regions of the fluorescence (left) and SPR (right) images with cell edge contours overlaid from opposing image. Scale bars = 100 μm.","domain":"optical_engineering"}
{"url":"http://aask24.com/project/summary-of-laser-induced-breakdown-spectroscopy-project/","date":"2018-03-22T21:47:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257648003.58/warc/CC-MAIN-20180322205902-20180322225902-00410.warc.gz","language_score":0.9057413935661316,"token_count":665,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__153326661","lang":"en","text":"Sample project of Laser-induced breakdown spectroscopy for university students. complete project is available below for download\nOverview of Laser-induced Breakdown Spectroscopy Project:\nLaser-induced breakdown spectroscopy (LIBS) is a laser-based technique that can provide qualitative and quantitative measurements of elements in gas, liquid, and solid samples. It is a technology in which a laser beam is directed at a sample to create a high-temperature micro plasma. . A determination of the background gas on spectral lines and the influence of plasma parameters like temperature and number density are studied. The life-time of the plasma is strongly dependent on the pressure of the background gas. A spectrometer is used to disperse the light emission and detect its intensity at specific wavelengths.\nLaser Induced Breakdown Spectroscopy\nLIPS (laser plasma spectroscopy) also known as Laser Induced Breakdown Spectroscopy (LIBS), is a relatively new type of atomic emission line Spectroscopy made possible with the advent of the laser in 1961. LIBS was originally Coined by Leon Radziemski and David Cremer’s at LANL (Los Alamos National Laboratory) in New Mexico (USA) in 1981 .\nLaser Induced Breakdown Spectroscopy (LIBS) is a technology that uses a short laser pulse to create a micro-plasma on the sample surface. LIBS technology is the formation of high-temperature plasma, induced by a short laser pulse. When a short laser pulse (with typical duration from ns to fs), is focused on a portion of matter, a significant amount of energy is transferred to the lattice, which can result in the formation of a plasma of the irradiated material, a phenomenon usually referred as breakdown at the material surface. The breakdown can occur only if the pulse irradiance exceeds a threshold value which depends on the state of aggregation of the material, an irradiance value of ~1 GW/cm2 is generally considered as an appropriate reference value to yield high-temperature and high-electron density plasma from virtually any kind of irradiated solid targets.\nWhen the laser pulse terminates, the plasma starts to cool down. During the plasma cooling process, the electrons of the atoms and ions at the excited electronic states fall down into natural ground states, causing the plasma to emit light with discrete spectral peaks .The LIB spectra consist of spectral lines which give information about all the constituting elements as well as elements in trace amount present in that sample .\nLaser Matter Interaction\nThe laser-plasma interaction is the transition of the target material into plasma state due to the presence of the laser electric field . Experimentally, laser-induced ionization was observed shortly after the invention of the laser in the sixties already. With advances in laser technology, however, higher intensities, different wavelengths and shorter pulse durations became available. Depending on the laser parameters used, different ionization processes such a Multi-photon ionization, above-threshold ionization and Barrier suppression ionization. The two mechanisms for electron generation and growth which produce breakdown are called multi-photon ionization and inverse bremsstrahlung .\nDownload Laser-induced Breakdown Spectroscopy Project:","domain":"optical_engineering"}
{"url":"http://www.ylcamera.com.my/products/fuji-vf-x21","date":"2017-11-25T07:54:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934809695.97/warc/CC-MAIN-20171125071427-20171125091427-00406.warc.gz","language_score":0.8692988157272339,"token_count":135,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__160917678","lang":"en","text":"Fujifilm VF-X21 Viewfinder (21mm / 28mm)\nList Price: RM1,006.00\nBest Price: RM774.00Inclusive 6% GST\nFor shooters who prefer eye-level viewing, the VF-X21 External Optical Viewfinder is a dedicated accessory to the Fujifilm X70 digital camera. This auxiliary finder attaches to the camera's accessory shoe and incorporates bright frame lines to match the 28mm field of view of the camera's built-in lens, as well as a 21mm field of view to support the use of the optional WCL-X70 Wide Conversion Lens.","domain":"optical_engineering"}
{"url":"http://almamaas.com/product-category/transition-networks/sfps-cwdm-mux-demux/cwdm-modules/","date":"2022-06-29T06:00:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103624904.34/warc/CC-MAIN-20220629054527-20220629084527-00451.warc.gz","language_score":0.9059144854545593,"token_count":131,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__58213106","lang":"en","text":"Coarse wavelength division multiplexing (CWDM) is a wavelength division multiplexing (WDM) technology that combines multiple signals at various wavelengths for simultaneous transmission over fiber cables. This passive technology allows for any protocol to be transported over the link, as long as it is at a specific wavelength (i.e. T1 over fiber at 1570nm transported alongside 10Gbps Ethernet at 1590nm).\nCWDM is a low-cost method to maximize existing fiber by decreasing the channel spacing between wavelengths. CWDM has a lower cost per channel than dense WDM (DWDM) and no configuration is necessary.","domain":"optical_engineering"}
{"url":"https://lightingandbulbsunlimited.com/products/kichler-18208","date":"2021-10-16T20:28:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585025.23/warc/CC-MAIN-20211016200444-20211016230444-00443.warc.gz","language_score":0.6943917274475098,"token_count":184,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__220139102","lang":"en","text":"This wet location BA15 Single Contact 12V LED lamp compares up to the 20W Halogen. Featuring a 2700K warm white temperature, this lamp puts forth a 300-degree beam spread angle.\nSpecification for the Kichler LED Landscape Lamp\nWeight: 0.01 lb\nBulbs: 1x 2.30W LED bulb(s) in a BA15 base.\nBulbs are included and/or integrated if an LED fixture.\nLumens (Light Output): 200.00 lm\nKelvin (Color Temperature): 2700K\nNatural Gas? No\nFan Safety Rating: Wet\nEnergy Star? No\nEnergy Efficient? No\nADA Rated? No\nDark Sky Rated? No\nTitle 20 Rated? No\nTitle 24 Rated? No\nProduct ID: 18208\nManufacturer Name: Kichler\nManufacturer Finish: Black","domain":"optical_engineering"}
{"url":"https://dayofdifference.org.au/z-medical/zeiss-medical-optics.html","date":"2022-06-29T15:09:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103640328.37/warc/CC-MAIN-20220629150145-20220629180145-00052.warc.gz","language_score":0.8012083768844604,"token_count":891,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__128939037","lang":"en","text":"At dayofdifference.org.au you will find all the information about Zeiss Medical Optics. We have collected a lot of medical information. Check out the links below.\nZEISS is one of the world’s leading innovators in the design and development of medical devices. We create and supply cutting-edge technologies and application-oriented solutions for ophthalmology and microsurgery. Product highlights Discover stories, campaigns and events Source: NASA Upcoming Events AANP 2022 06/21/2022 - 06/26/2022 USA, Orlando\nMedical Solutions made by ZEISS Product highlights Innovative technologies and comprehensive solutions CORNEAL REFRACTIVE Right on target. Faster. Robotic. Connected. ZEISS VISUMAX 800 Cataract Unleashing a new experience in phaco. ZEISS QUATERA 700 Explore our product categories Trending clinical topics Insights on the latest in clinical care\nMedical Technology Researching into Micro- and Nanostructures. Microscopy See better. Vision Care ... ZEISS - an internationally leading technology enterprise operating in the fields of optics and optoelectronics. ZEISS solutions contribute to world optics development and technological progress. With our passion for excellence, we create value ...\nMedical Technology Researching into Micro- and Nanostructures Microscopy See better Vision Care Sunlens ZEISS – an internationally leading technology enterprise operating in the fields of optics and optoelectronics. With its solutions, ZEISS constantly advances the world of optics and helps shape technological progress.\nThe optics expertise of Carl Zeiss Meditec comes to the fore when providing innovative tools for cataract surgery. Pre-operative devices include the gold standard optical biometer IOLMaster ® , as well as slit lamps and topographers.\nThe next generation of fundus imaging systems from ZEISS provides True Color and exceptional resolution across an entire 200-degree¹ ultra-widefield image – from the macula to the periphery – all while providing an optimal patient experience. Learn more Discover ZEISS Essential Line Complete basic diagnostic workplace\nOptics and Illumination ZEISS EyeMag medical loupes offer premium optical performance for first-time and experienced users. Equipped with LED illumination, the advanced visualization tools provide great image clarity and depth of field over the entire treatment area. Application image courtesy of Dr. Claudia Cia Worschech, Sao Paulo, Brazil\nZEISS offers a comprehensive range of refractive and screening devices for your pretest workflow. These include instruments for lens measurement, objective refraction, keratometry and corneal topography analysis. > Autorefractometer > …\nThe optics expertise of ZEISS Medical Technology comes to the fore when providing innovative tools for cataract surgery. United States ... ZEISS has embraced digital technology, combining the well-known quality of ZEISS optics and the vast possibilities of digital imaging.\nZeiss is a premier manufacturer of high end, world class optics in everything from microchips to eyeglass lenses, microscopes to medical systems, and cinema camera lenses to planetarium technology. Zeiss is also world famous for its sports optics, which includes riflescopes, binoculars, monocular, r ...","domain":"optical_engineering"}
{"url":"https://johnharveyphoto.com/Life/10_2016/TombstoneDisplay.html","date":"2023-05-30T15:44:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645810.57/warc/CC-MAIN-20230530131531-20230530161531-00483.warc.gz","language_score":0.8341382145881653,"token_count":208,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__278662890","lang":"en","text":"Bright Monochromatic lights are difficult to take portraits with.\n|Date:||Friday, October 28th, 2016 at 9:00 PM|\n|Exposure:||1/10 sec at f1.4|\n|Exposure Compensation:||851 ev|\n|Lens:||35mm f/1.4 Nikkor AI-S\nWith cropping (you see 73% of the image as shot), this lens is effectively a 40mm lens on a 35mm camera\n|Larger image:||2000 x 1333|\n|Raw image:||6314 x 4209|\nJohn Harvey Photo > Blogs for 2022 to 2005 > October 2016 > Tombstone Display\nLast Modified Saturday, January 21st, 2023 at 23:57:46. Edit\nCopyright and Contact Information.","domain":"optical_engineering"}
{"url":"http://shenbo.hk/products-ultra-clear-glass.html","date":"2019-08-18T00:54:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313536.31/warc/CC-MAIN-20190818002820-20190818024820-00509.warc.gz","language_score":0.9150201082229614,"token_count":614,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__229541687","lang":"en","text":"Jinjing Solution Low-Iron Glass\nUltra Clear Glass, known as low-iron glass, diamond glass or super clear glass, is a type of high-clarity glass that is made from silica with very low amounts of iron. This low level of iron removes the greenish-blue tint that can be seen especially on larger and thicker sizes of glass. Low-iron glass is used for aquariums, display cases, some windows, and other applications where clarity is desired.\nLow-iron glass typically has a ferric oxide content of about 0.01%. Ordinary plate glass has about 10times as much iron content. Low-iron glass is made from low-iron silica sand. In the United States, the primary sources for such sand are in Wisconsin.\nUltra Clear glass provides unprecedented options for both exterior and interior applications in commercial buildings and private homes with stunningly clear because it contains less than 1⁄10 of the iron present in typical clear glass, which means more light shines through. Its luxurious aesthetic will inspire you to find new and creative ways to use it.\nBrilliant, clear viewing\nUltra clear glass are designed to maximized transmission of natural light. Offering maximized transparency with 7 percent higher visible light transmittance (VLT) than traditional clear glass.\n|Clear Float Glass\n||Low Iron Glass\n*Light Transmission - refers to the percentage of external light that passes through the glass, the percentage the more daylight that will pass through. Results may vary between glass suppliers.\nPure color, Substantially reduced green tinge\nUltra clear and provides a higher degree of transparency than clear float glass. This optimum clarity is achieved by removing most of the iron oxide content used to produce glass. The improved clarity of low iron glass compared with clear float glass is barely discernable unless the two types of glass are viewed against a coloured background.\nIt forms no “greening” of ordinary clear glass, especially when combine uses in IGU or laminated glass.\nJinjing Solution Low-Iron Glass Distinction\nJinjing Ultra Clear Glass is known as high quality low-iron glass in China region, it mostly being specified for landmark projects.\nSpecial formula, Dramatic Edge\nUltra-clear float glass has low absorption and high transmittance to daylight. its color is pure and crystal clear. As its thickness increases, Jinjing Ultra-Clear glass offers a distinctive azure-blue edge, while the transparency of the glass remains ultra-clear, providing a luxurious aesthetic appearance.\nLower spontaneous breakage rate\nUltra-clear float glass also has a lower impurity content. During the extraction of Iron element (Fe) from the float, part of Nickel element (Ni) will be also being extracted as a side effect, this process lowered the content of Nickel in the float compared to traditional clear glass. Lower content of Nickel would lower the chance of Nickel Sulphide (NiS) formation, in terms of minimizing the risk spontaneous breakage.","domain":"optical_engineering"}
{"url":"http://iea-adeline.de/1_definition.html","date":"2019-04-25T11:59:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578721441.77/warc/CC-MAIN-20190425114058-20190425140058-00427.warc.gz","language_score":0.9314634203910828,"token_count":134,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__79908814","lang":"en","text":"The initial phase consists in clearly defining the objectives to be implemented regarding the lighting strategy and the architectural purpose.\nUntil now, the \"prediction\" of light propagation into built spaces has been generally a matter of intuition.\nThe extreme complexity of the problems to be solved sometimes leads architects to rely on the great adaptability of electric lighting and to design buildings as if natural light did not even exist.\nADELINE allows designers to design and analyse strategies for natural light utilisation.\nUsing ADELINE in the early stages of the design process will not only improve the lighting performance of buildings, but will also lead to the production of better architecture and energy savings.","domain":"optical_engineering"}
{"url":"http://www.bme.arizona.edu/labs/utzinger/tissue_model.htm","date":"2013-05-24T12:48:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704658856/warc/CC-MAIN-20130516114418-00043-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.857929527759552,"token_count":488,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__76535704","lang":"en","text":"In order to determine\nthe biological origin of the optical signatures\nof intracellular and extracellular constituents\nwe propose to further develop and study an\nin-vitro tissue slice model.\nBiopsies will be obtained from women undergoing\noophorectomy.. Embedded tissue samples will\nbe sectioned with a precision cut tissue slicer,\nincubated, and microscopically examined. We\nwill determine the duration of the tissue\nslice viability. Development of the ovarian\ntissue slice model will be in collaboration\nwith investigators from the University of\nArizona, College of Pharmacy, and will have\napplication in many future studies.\nWe will explore the optical signature of tissue\nconstituents, quantify them and mapping their\nspatial distribution within the tissue slice\nwith microscopy techniques. Images will be\nobtained with white light and two-photon excitation\nmicroscopy. White light reflectance images\nwill provide scattering information while\nfluorescence images will determine spatial\ndistribution of fluorophores. Optical properties\nfrom structures identified in these images\nwill be correlated with histopathologic analysis.\nThe focus will be to identify structures contributing\nto the contrast between normal and neoplastic\ntransformed ovarian tissue. Imaging will be\nperformed at the University of Arizona in\nthe user facilities of the Arizona Research\nOur efforts to achieve aim 1 and 2 require\ndata from biopsy samples from pre and postmenopausal\nwomen because hormonal status will affect\ntissue composition. Our samples will be studied\nex-vivo because our in-vitro tissue model\nwill keep tissue alive during microscopy studies.\nFigure: Single photon and two\nphoton images of the ovarian surface epithelium\nas well as the stroma. Left: 2P excitation\nat 720 nm and fluorescence emission recorded\nafter IR filtering. Strongest signal is originating\nfrom the epithelial tissue layer. Structural\ncontrast can also be observed in the stroma.\nRight: The same site excited at 458 nm in\nsingle photon mode shows stronger contribution\nfrom the epithelium and less structural contrast.\nEmission at 458nm excitation is consistent\nwith FAD and emission from 2P excitation at\n720nm with NAD(P)H and structural proteins.\nA bar is 200 mm.","domain":"optical_engineering"}
{"url":"https://www.konstadaras.gr/product/practical-perimetry-2/","date":"2024-04-15T00:45:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816904.18/warc/CC-MAIN-20240414223349-20240415013349-00463.warc.gz","language_score":0.860615074634552,"token_count":225,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__35699343","lang":"en","text":"Perimetry is the systematic measurement of visual field function. It is primarily used in the diagnosis of glaucoma, but also for retinal diseases and neuro-ophthalmic disorders.\nAuthored by a multidisciplinary team of experts, this book is a practical guide to the use of perimetry in the diagnosis of eye disorders.\nDivided into three sections, the book begins with an overview of automated perimetry, describing the normal visual field and comparing perimeters.\nThe following section discusses visual field interpretation, covering single visual field analysis, Octopus technology perimetry, and visual field progression.\nThe third section examines special situations including neuro-ophthalmic, retinal and macular disorders, structural and functional correlation in glaucoma, frequency doubling, and short wavelength automated perimetry; with the final chapters providing commentary on recent advances, integrating technologies, care and maintenance of perimeters, and the history of perimetry.\nPrevious edition (9789385999680) published in 2016.","domain":"optical_engineering"}
{"url":"https://beyondtheworld.net/universe/look-back-at-hubble-space-telescopes-first-light-image-from-1990/","date":"2023-01-31T09:56:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499857.57/warc/CC-MAIN-20230131091122-20230131121122-00097.warc.gz","language_score":0.9543693661689758,"token_count":555,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__276746512","lang":"en","text":"Look Back at Hubble Space Telescope’s ‘First Light’ Image From 1990\nThe image on the left was captured by a ground-based telescope in Chile, whereas the image on the right was captured by Hubble’s much sharper “first light” view of the same stars. NASA/ESA/STScl\nIn celebration of Webb’s first major image release, here’s Hubble’s starry-eyed view from decades ago.\nThe excitement this week is for the arrival of the first science images from the James Webb Space Telescope on Monday and Tuesday. Webb is the hot new item, but don’t forget about the Hubble Space Telescope, which is still in operation. This is the perfect time to gaze back at its “first light” image from 1990.\nHubble has been studying the universe for over three decades. The first-light view was a wow moment at the time because it showed the kind of clarity the new observatory could achieve compared to ground-based telescopes. Hubble’s image of stars, as seen by the Las Campanas Observatory in Chile, was shared by NASA and the European Space Agency.\nThe double star towards the top of Hubble’s version is notable. In the Chilean telescope’s shot, it’s a big blur. In Hubble’s, there are clearly two stars. The “smearing effect of Earth’s atmosphere” affects ground-based telescopes. Telescopes in space are able to avoid this problem.\nHubble’s shot came from its Wide Field/Planetary Camera during a preparation phase prior to its serious science observations. “The first image taken with Hubble was intended to assist in focusing the telescope,” said NASA in a look back at Hubble’s history. It is comparable to a Webb test image that was revealed last week. In 30 years, we’ve come a long way.\nNASA announced shortly after the first-light photograph that there was an imperfection in Hubble’s primary mirror, which caused images to blur. The telescope overcame its rocky start thanks to a servicing mission in 1993 during which spacewalking astronauts installed corrective equipment.\nA space shuttle mission in 1993 fixed Hubble’s eyes. Spiral galaxy M100 is seen in before (left) and after (right) images. NASA\nAs it looks into the deep history of the universe, Webb is likely to rock the astronomy world with unprecedented new views. While Hubble has had its share of problems over the years, it is still producing amazing images and data, and NASA believes it will continue to operate even while Webb shakes up our understanding of space.","domain":"optical_engineering"}
{"url":"https://wishwhooshoffers.com/products/1080p-wireless-wifi-digital-microscope-handheld-usb-microscope-camera-with-8-led-lights","date":"2021-05-16T00:25:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991488.53/warc/CC-MAIN-20210515223209-20210516013209-00102.warc.gz","language_score":0.7849386930465698,"token_count":513,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__67321139","lang":"en","text":"- 【Multifunction Digital Microscope】: This is an easy and fun wireless USB digital microscope for anyone curious to see the world closer than you can ever see with the naked eye. View via WiFi connection on iOS and Android smartphone and tablet devices; View via USB connection on Windowns PC.and Macbook.\n- 【Clear Images】You can capture images and 1080P videos at up to 50x optical and 1000x digital zoom using inskam free software- the user-friendly software that enable the user to view and record crystal clear images.\n- 【Built-in 8 Adjustable LED Lights】You can capture more clear image with adjusting the LED lights depending on your demand. And this digital microscope has a built-in 500mAh battery, which make camera work last 90 minutes. It’s easy to carry and use anytime at anywhere.\n- 【Wide Application】 The S81 digital video camera is widely used in some of the most prestigious universities and large corporations. Most common uses are for education, visual aids, gemology, high tech repair, industrial inspection, quality inspection, and labs/ science.\n1. Please use 5V phone charger to charge this digital microscope fully before first using. Don't use computer usb interface to charge device.\n2. If you want to view the image on Windows PC or MacBook. Please move the \"WiFi/PC\" switch to PC, next hold and press \"Photo/Switch\" button for 3s to turn on device. Next use provided charging cable to connect with computer.\nHow to download PC Client download on Windows:\nHow to download PC Client download on Macbook:\nInput app name called \"Photo Booth\" in the applications on Macbook\nBest Focal Distance: 0.11-2.36inch\nPixels: 2.0M pixels\nResolution: 1920*1080, 1280*720, 640*480\nLighting: 8 adjustable LEDs\nWiFi Distance: 10M\nVideo Format: MP4/AVI\nImage Format: JPG\nVideo Frame: 20fps-30fps\nUSB Interface: USB 2.0 and above\nOperating Systems: Android 4.4 and above, IOS 9.0 and above, Windows vista 7/ 8/10, Max OS X10.8 and above.\n1 x Wireless Microscope\n1 x Microscope Case\n1 x Plastic Stand\n1 x Microscope Holder\n1 x Charging cable\n1 x Instruction","domain":"optical_engineering"}
{"url":"https://sensitivus.com/faq/what-are-the-most-common-technologies-used-in-angle-sensors/","date":"2023-10-03T16:43:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511170.92/warc/CC-MAIN-20231003160453-20231003190453-00685.warc.gz","language_score":0.9249946475028992,"token_count":538,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__1905904","lang":"en","text":"What Are the Most Common Technologies Used in Angle Sensors?\nThere are several technologies used in angle sensors, each with its advantages and disadvantages. When choosing an angle sensor, it is important to consider the accuracy, reliability, cost, and environmental conditions of the application.\nSensitivus´ angle sensor uses an inductive technology that has all the features needed in an electrical bike application. This includes absolute angle, high accuracy, and a durable design that can tolerate harsh environments. With the right design, it can be an inexpensive but highly reliable sensor.\nPotentiometric sensors are the most common type of angle sensors. They work by measuring the change in resistance of a potentiometer as the object rotates. Potentiometric sensors are simple, reliable, and inexpensive. However, they are prone to wear and tear, and temperature changes might affect their accuracy.\nMagnetic sensors use a magnetic field to measure the angle of an object. They work by detecting changes in the magnetic field as the object rotates. Magnetic sensors are highly accurate and can work in harsh environments. However, magnetic interference can cause inaccuracy, which is also a problem in a production environment.\nCapacitive sensors use changes in capacitance to measure the angle of an object. They work by measuring the change in capacitance between two plates as the object rotates. Capacitive sensors are highly accurate and can work in harsh environments. However, they tend to be more expensive than most other technologies and humidity can affect them.\nOptical sensors use light to measure the angle of an object. They work by shining a beam of light on a reflective surface and measuring the angle of reflection. Optical sensors are highly accurate and can measure angles with high resolution. However, they are more expensive and prone to environmental parameters such as grease and dirt.\n- Can Angle Sensors Be Customized for Specific Applications?\n- Can Angle Sensors Be Used in E-bike Applications?\n- Can Angle Sensors be Used in Harsh Environments?\n- How Do I Choose the Right Angle Sensor for My Application?\n- How Do I Compare Angle Sensors From Different Manufacturers?\n- How Do I Know If My Angle Sensor Is Accurate?\n- What Is a Crank Angle Sensor?\n- What Is the Difference Between Absolute and Incremental Angle Sensors?\n- What Is the Resolution of an Angle Sensor?\n- Why Do I Need a Crank Angle Sensor on My E-bike?","domain":"optical_engineering"}
{"url":"https://freelancewastrel.com/2022/03/21/monochrome-monday-carr-wood-on-the-yashicamat-124g/","date":"2022-11-28T19:10:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710534.53/warc/CC-MAIN-20221128171516-20221128201516-00360.warc.gz","language_score":0.939060389995575,"token_count":171,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__28771032","lang":"en","text":"YashicaMat 124G, Yashinon 80mm f/3.5 – 1/60s, f11, – Kodak T-Max 400\nDeveloped in Ilford Ilfotec DD-X at 1:4, 8 mins at 20°c.\nAnother image from a twin-lens reflex (TLR) camera, but this time it’s a YashicaMat 124G.\nIt’s a camera I’ve never had much success with in the past… The taking lens has a little fungus inside and I’ve always found it difficult to focus. That said, previous attempts at using it were hand-held and lately I’ve been using a tripod more and more which (for me at least) makes focusing easier.","domain":"optical_engineering"}
{"url":"http://www.lenspacks.com/","date":"2022-01-23T23:40:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304345.92/warc/CC-MAIN-20220123232910-20220124022910-00328.warc.gz","language_score":0.9005317687988281,"token_count":951,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__184513948","lang":"en","text":"LensPacks is an innovative and easy-to-use Velcro lens cap system that allows for quick camera lens changes so that you can capture every special moment. It works with virtually any camera bags.\nWhether you are a professional photographer that works in a studio or a casual photographer that enjoys taking outdoor photos, LensPacks quick change camera lens caps cater to everyone with more than one camera lens.\n|Ultra Fast Lens Changes\nChange lenses without having to put down the camera or fiddle with lens caps.\n|Strong and Reliable\nWith the wide Velcro® base, LensPacksTM quick change camera lens holder is engineered to hold virtually all camera lenses with ease in any orientation.\n|Upright or Sideways\nOrganize your camera bag to fit your needs.\nPosition shorter lenses upright to save space and fit taller lenses sideways.\n|Support for Different Lens Systems\nLensPacksTM quick change camera lens holder currently works with these lens systems: Nikon, Canon, Sony E-Mount, Micro FourThirds, Fujifilm X-Mount, and Pentax K-Mount. Support for other manufacturers is in the plan for the future.\n|Integration With LensRacks\nLensPacksTM quick change camera lens holder complements LensRacksTM camera gear storage system perfectly.\n|Always Protect Your Lenses\nDon't sacrifice your lenses in exchange for quick lens changes. Have the best of both worlds.\nLensPacksTM quick change camera lens holder is compatible with literally any camera bag. The Velcro® base will attach to the lining of most camera bags. For camera bags without Velcro-friendly lining, we offer hook and loop sheets that will ensure any camera bag is compatible with LensPacks.\nBe creative! LensPacksTM quick change camera lens holder can be mounted literally anywhere you can imagine!\n|LensPacks Design Features\nTo ensure your camera lens does not move around, each LensPacks quick change camera lens holder has an oversized base to grip the camera bag securely. Underneath this large base is ultra strong adhesive-backed Velcro. To make lens changes even quicker, alignment markers are on each LensPacks quick change camera lens holder for quick and easy lens insertion.\n|Low Profile Design\nLensPacks quick change camera lens holder was designed to be as slim as possible to maximize the usable space in your camera bag.\nUse the Velcro fastener to attach LensPacks quick change camera lens cap at a desired location inside the camera bag.\nInsert the lens into LensPacks quick change camera lens cap and turn the lens to secure.\n|*For bags that do not have attachment points for Velcro® fasteners, we offer Velcro® sheets that adhere to the interior of your bag. The sheet applies to the bottom of your camera bag at any desired location. Please the \"Products\" section below.|\n|6\"x12\" Velcro® Sheet\nThe 6\"x12\" adhesive-backed Velcro® sheet ensures camera bags without Velcro-friendly lining is compatible with LensPacks quick change camera lens holder. Cut the Velcro® sheet to the desired size and place it in any location in your camera bag.\nLensPacks quick change camera lens cap was designed in the beautiful British Columbia of Canada by a group of mechanical engineers at Ansix Designs.\nThe components of LensPacks quick change camera lens caps are manufactured in a factory which specializes in plastic injection molding.\nAll LensPacks quick change camera lens caps are built by hand to meet our uncompromising standard and are shipped from British Columbia, Canada.\n|At the early stage of LensPacksTM development, we tested with just adding Velcro® to a regular rear lens cap. We quickly found this solution would not hold up to repeated use. We then developed a version with a larger base with threads for redundancy. The final version of LensPacks uses Velcro® with ultra strong adhesive, and includes features such as indication markers and chamfer for easy lens insertion.|\nLensPacks quick change camera lens cap was designed by the engineers at Ansix Designs in Canada. At Ansix Designs, we strive to design high quality products that are both affordable and useful. We are constantly looking for innovative ways to improve existing and to create new products, We believe there are always better, simpler ways to do things. We believe LensPacks quick change camera lens cap is a perfect example of our design philosophy.","domain":"optical_engineering"}
{"url":"https://www.actiprosoftware.com/docs/controls/wpf/gauge/led-features/led-light","date":"2021-07-29T01:28:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153814.37/warc/CC-MAIN-20210729011903-20210729041903-00583.warc.gz","language_score":0.8915953040122986,"token_count":416,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__304433448","lang":"en","text":"Led supports on, off, or blinking states, and includes several options for customizing the look of the led light.\nThe led light can be in one of three states (on, off, or blinking), which is set using the LedState property.\nTwo Led controls with the led light on (left) and off (right)\nWhen blinking, the light will be toggle between on and off at the interval specified by the BlinkInterval.\nThe led light defaults to a circle, but supports several shapes including arrows, triangles, rectangles, etc. The led light type is specified using the LedType property.\nLed using an arrow that points down for the led light\nWhen the built-in led types are not flexible enough to achieve the look desired, a custom\nGeometry can be used.\nWhen using led light that is not circular, the associated shape is sized such that it would fit inside a circle with the associated radius computed from\nTwo Led controls with a led radius ratio of 80% (left) and 60% (right)\nBrush and Effect\nThe led background and foreground colors can be customized by setting the LedBackground and LedForeground, respectively. The led effect can be disabled entirely by setting IsLedEffectEnabled to\nTwo Led controls with a red light; the right image has the led effect disabled\nLedState of the\nLed determines how the foreground of the light is rendered, but regardless of the state the led light background is rendered using the\nLedBackground brush. Using the\nLedState, the led light foreground is rendered on top of the background, using a varying opacity. If the the light is\nOn then LedOnOpacity is used. If the the light is\nOff then LedOffOpacity is used. If the the light is\nBlinking then the opacity is animated to and from\nA value converter, that can be used in data binding, is provided to convert between Boolean and\nLedState types. See the Advanced Features\\Converters topic for more information.","domain":"optical_engineering"}
{"url":"https://www.alsuec.com/about/als-u","date":"2024-04-19T11:18:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00232.warc.gz","language_score":0.8981611132621765,"token_count":104,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__196071269","lang":"en","text":"Advanced Light Source Upgrade Approved to Start Construction\nNovember 15th. 2022\nThe Advanced Light Source (ALS), a scientific user facility at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), has received federal approval to start construction on an upgrade that will boost the brightness of its X-ray beams at least a hundredfold.\nmore information: https://newscenter.lbl.gov/2022/11/15/advanced-light-source-upgrade-construction","domain":"optical_engineering"}
{"url":"http://www.mmk.ei.tum.de/studentische-arbeiten/beschreibungen/on-line-pupil-size-correction-for-eye-tracking/","date":"2018-12-12T02:49:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823712.21/warc/CC-MAIN-20181212022517-20181212044017-00244.warc.gz","language_score":0.8483493328094482,"token_count":343,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__148795873","lang":"en","text":"On-line pupil-size correction for eye tracking\n|Typ||Bachelor, Studienarbeit, IDP|\n|Betreuer||Dr.-Ing. Michael Dorr\nTel.: +49 (0)89 289-28563\n|Sachgebiet||Human and Computer Vision|\n|Beschreibung||Video-oculographic eye trackers estimate gaze direction from the relative position of the pupil and one or more corneal reflexes, which are created by infrared light sources pointed at the eye. Tracking these features is relatively easy because the latter are typically the brightest parts and the former is the darkest part of the eye. However, illumination changes also induce changes in pupil size, which may lead to systematic errors in gaze estimation. This is particularly problematic when recording gaze for naturalistic stimuli such as Hollywood movies, where stimulus luminance may change dramatically over time.\nIn this project, we want to implement and evaluate methods to correct for these errors.\n|Voraussetzung||Because of the strong real-time requirements of binocular eye tracking at 2000 Hz, some experience with C/C++ is required.|\n|Bewerbung||If you are interested in this topic, we welcome the applications via the email address above. Please set the email subject to “<Type of application> application for topic 'XYZ'”, ex. “Master’s thesis application for topic 'XYZ'”, while clearly specifying why are you interested in the topic in the text of the message. Also make sure to attach your most recent CV (if you have one) and grade report.|","domain":"optical_engineering"}
{"url":"http://quantumphotonics.ca/award/honorary-doctor-of-science-degree-from-the-university-of-glasgow/","date":"2022-05-22T10:48:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662545326.51/warc/CC-MAIN-20220522094818-20220522124818-00132.warc.gz","language_score":0.9060239195823669,"token_count":250,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__197369909","lang":"en","text":"Honorary Doctor of Science Degree from the University of Glasgow\nWarning: Use of undefined constant recipient - assumed 'recipient' (this will throw an Error in a future version of PHP) in /home/public/wp-content/themes/cercqnlo/single.php on line 105\nJuly 2, 2014\nWarning: Use of undefined constant link - assumed 'link' (this will throw an Error in a future version of PHP) in /home/public/wp-content/themes/cercqnlo/single.php on line 116\nOn July 2 2014 Professor Boyd was awarded an honorary doctor of science (DSc) degree by the University of Glasgow in the United Kingdom. The doctorate degree recognizes Boyd’s “considerable contributions” in the field of optical physics. Boyd is a pioneer in nonlinear optical interactions and nonlinear optical properties of materials. He developed composite photonic materials, also known as metamaterials, which can be fabricated to show linear and nonlinear optical properties for a specific task. Boyd also conceived the use of coherent population oscillations as a method of producing slow and fast light within solids at room temperature.","domain":"optical_engineering"}
{"url":"https://www.amwarkup.co.uk/led-light-fittings.html","date":"2022-07-06T07:58:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104668059.88/warc/CC-MAIN-20220706060502-20220706090502-00280.warc.gz","language_score":0.9452129602432251,"token_count":382,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__134287869","lang":"en","text":"LED Light Fittings\nAgrilamp ᵀᴹ is a leading manufacturer of the world's most innovative agricultural LED lighting sollutions. Our products combine state-of-the-art lighting technology with integrated design to deliver powerful systems that are affordable and easy to use. The company’s most recent highly developed and successful Agrilamp ᵀᴹ bulb range is specifically light optimized for the pig industry.\nAgrilamp ᵀᴹ is a leading LED manufacturer with years of experience in designing and manufacturing the world’s most innovative LED lighting solutions for the agricultural industry.\nThe company’s patent pending bulbs, marketed under the name Agrilamp ᵀᴹ, have been providing significant cost savings by reducing lighting related energy consumption by up to 90%.\nAgrilamp ᵀᴹ has been firmly established in the poultry industry for many years, having worked closely with the UK’s leading producers. Following the success of the poultry-specific LED lighting, Agrilamp ᵀᴹ has introduced to the market the most recent LED lighting solutions designed for the Pig industry. Following years of research Agrilamp ᵀᴹ has developed and launched on the market LED lighting range specifically designed and optimised to help improve farming. The Agrilamp ᵀᴹ products are already hugely successful and have become some of the leading products available through a combination of price, light quality, longevity and low maintenance requirements. Large scale use is now a reality with major distributors, A.M.Warkup, paving the way for a multitude of smaller producers. Agrilamp ᵀᴹ continues to be involved in knowledge transfer programs and trials to perfect and keep improving the lighting regimes for the pig industry.","domain":"optical_engineering"}
{"url":"https://www.iculta.com/program/technical-tours/tour-10-technical-university-of-applied-sciences-wildau","date":"2020-06-02T02:07:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347422065.56/warc/CC-MAIN-20200602002343-20200602032343-00398.warc.gz","language_score":0.916185736656189,"token_count":151,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__67162469","lang":"en","text":"Photonics and Optical Technologies are among the most important fields of research and development at Technical University of Applied Sciences Wildau (TUASW). Besides a bachelor course in Physical Technologies / Energy Systems and a master course in Photonics, there are several laboratories devoted to R&D in this fast developing research area. The tour to TUASW includes beside a short presentation about history and actual activities at TUASW also visits of various laboratories and discussions with researchers. Besides visits of laboratories for thin film deposition and surface technologies, also laboratories for laser materials processing, laser spectroscopy, linear and nonlinear optics, and surface analytics are included in this tour. In case of interest also other laboratories of TUASW can be visited.","domain":"optical_engineering"}
{"url":"https://www.gdwsecurity.be/en/tips/intelligent-cameras-more-and-more-standard","date":"2023-06-10T05:05:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656963.83/warc/CC-MAIN-20230610030340-20230610060340-00414.warc.gz","language_score":0.9094126224517822,"token_count":460,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__40530899","lang":"en","text":"Intelligent cameras more and more standard\nIVS or Intelligent Video Surveillance is the next step in camera surveillance. What types of intelligent solutions are there? An overview.\nThe camera will automatically recognise faces and save them as separate images on the recorder’s hard disk, making it possible to easily search the details of a particular individual. Some people wear (sun) glasses, a hat, masks and other accessories, so that it is not possible to filter all the faces in the picture. Each detection does not result in an actual recognition.\nThe camera detects the number of persons within its view who enter and exit a detection zone. Statistics are then automatically generated on the number of persons entering and leaving a zone. It is possible to display these statistics in graphs or diagrams.\nThe camera detects people as they cross a virtual line. It is even possible to determine the direction objects are moving. You can for example monitor a fence or a one-way street. Upon detection, the device emits a signal and sends a photo by mail. (Other connections are also possible: with lighting, burglary detection systems, etc.) This logic of virtual lines can be extended to ‘areas’ (zone detection) that people enter or leave. You can also determine the direction to be detected.\nIf the image is not sharp, the camera sends a signal and the user is notified immediately to take action.\nAbandoned and lost objects.\nIdeal for areas with little or no movement or where there are moving objects. If an object is left behind or disappears from the picture, an alarm is generated.\nThis ‘map’ gives you an overview image from the camera with different colours to indicate the intensity of the movement. In a shop, you can then easily check where most people pass through or linger.\nThis intelligent solution cannot be considered as a replacement for an existing burglary detection system, but as a supplement to and/or a tool within a comprehensive plan . In addition, not every camera is suitable for this set-up. Within the plan, the position of the camera and the environment are important to applying this technology effectively.","domain":"optical_engineering"}
{"url":"http://www.columbusperfectionlasers.com/video/player/7907-how-laser-vision-correction-works","date":"2017-03-29T10:57:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190295.4/warc/CC-MAIN-20170322212950-00421-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9456949830055237,"token_count":172,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__165186833","lang":"en","text":"MALE VOICE 1: The excimer laser can be used to correct nearsightedness by either photorefractive keratectomy also called PRK or LASIK. In PRK the cornea of the eye is directly vaporized by the laser beam, sculpting a type of prescription onto the surface of the eye. The vision generally returns within about a week and there may be some discomfort for a few days.\nLASIK, although technically more involved takes only about five minutes to perform and results in improved vision the day after surgery with only slight discomfort the day of the procedure. LASIK is performed worldwide and although currently being studied in this country is available at our center as well as standard PRK.\nALK or automated lamellar keratoplasty.\nYou need to install Adobe Flash to play these videos.","domain":"optical_engineering"}
{"url":"http://www.virtualdisks.com/","date":"2013-06-19T10:16:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708690512/warc/CC-MAIN-20130516125130-00029-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9270256757736206,"token_count":527,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__2041414","lang":"en","text":"Virtual disks function as separate data storage devices but are not physically isolated. The development of microscale lens and micro-mirror arrays with invisible polymers is opening up an innovative generation of three-dimensional imaging. Arrays of microscale lenses made from polymeric or elastomeric materials can be focused by shrinking or expanding using piezoelectric currents. The interaction of holotechnology laser images with microscale lens or micro-mirror arrays can lead to genuinely three-dimensional moving pictures. Additional information at three-dimensional data analysis .\nVirtual reality can address neurological illness or injuries. Virtual reality can help people with neurological damage to regain the ability to perform tasks by retraining damaged areas of the brain or by learning to use new areas. For people with chronic impaired senses, virtual reality can also help. As an example, vision-impaired people can prepare for a setting world by training on a virtual model of that setting equipped with sound and kinesthetic cues. Focused VR information on prototyping using virtual reality .\nOne's eyes see things from two different angles. Although your two eyes see two alternate images, they work together and your brain merges the two images into a single picture with detail sensation. The muscles in both eyes adjust the location of the eyes to produce a single picture of the object , which is known as axial convergence. Also, the lenses in each eye change shape to change the focus distance of the object , which is called accommodation. This is called parallax vision. Realistically simulating parallax vision in virtual reality is challenging. How can one cause one's eyes see two different pictures? How far away should the pictures be? If the pictures are too far away, then the screen might be too tiny to fill enough of the range of sight. In the event that the screen is too close, then muscles that achieve axial convergence and accommodation may oppose each other. Sub-page texture mapping and ray tracing in virtual reality environments covers additional useful information.\nCommunication from human beings to computing systems based on movement occurs through keypads, mouse, motion-recording gloves, and other motion-tracking mechanisms. Since touch and motion are central to information transmission from humans to computers, virtual reality systems require high-performance methods for measuring human movement. They should detect movement without interfering with it. Touch and motion based communication going the other way, from the setting to people, is also very important in the genuine world, but as we will discuss, it is much less higher-order in virtual reality caused by technological limitations. Visit also gesture recognition in virtual reality .","domain":"optical_engineering"}
{"url":"http://www.firemapper.com/firemapper/index.html","date":"2019-05-20T06:34:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255773.51/warc/CC-MAIN-20190520061847-20190520083847-00210.warc.gz","language_score":0.920162558555603,"token_count":355,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__173339205","lang":"en","text":"for wildfire mapping\nFireMapper® 2.0 is the most compact, versatile and easy-to-use fire mapping system on the market. Our plane-borne sensors can see through smoke and haze to deliver a detail image that shows the size, strength and speed of large-scale fires.\nFireMapper features distinct advantages\nover traditional fire mapping systems. It provides a full color image that depicts\nheat intensity up to 1200° C without saturation. Most current sensors saturate\neven on smoldering ash or sunlit rocks so everything warm looks the same.\nWith FireMapper, the heat intensity is accurately calibrated to show the firelines and hot spots so the location and direction of the fire can be determined. In fact, the actual temperatures of any pixel in the image can be read merely by touching the pen to the image on the tablet PC. With its high sensitivity, small spot fires can be easily detected from the air long before they grow into devastating forest fires.\nSince the image is digital, it can be downloaded in near real time if necessary. GPS data accompanies every image so they can be projected onto flat topographic or 3D terrain maps. Individual images can also be piecemealed into mosaics to depict the full scope of a large wildfire.\nFireMapper has a special \"Tactical\" mode for low altitude operation. This \"Tactical\" mode allows rapid imaging at up to 6 images per second to provide contiguous or overlapping images in tactical situations. In fact, at 120-knot speeds and an altitude of only 50 feet, a 30% image overlap is still attainable.\nAt its small size, FireMapper can also be mounted on buildings or towers to automatically detect fires at very early stages.","domain":"optical_engineering"}
{"url":"https://www.digitalcombatsimulator.com/en/files/user-is-Hawke001/apply/","date":"2022-06-25T19:46:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103036099.6/warc/CC-MAIN-20220625190306-20220625220306-00437.warc.gz","language_score":0.9157232642173767,"token_count":221,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__269009893","lang":"en","text":"This mod provides a reallistic depiction of how the F/A-18C HUD works in real-life. This mod is best experienced in VR.\nIn real-life, the F/A-18C HUD can only display symbology on the area of the combiner glass that reflects the combiner lens. The pilot sees only a portion of the symbology with each eye and his brain fuses the images of both eyes into a single image of the entire symbology. The real HUD also displays a green glow on low light conditions when the brightness of the HUD is too high. This makes the real HUD a bit harder to see and use than what is depicted by default in DCS.\nThis mod intends to simulate the limitations of the real HUD to bring the F/A-18C simulation a step closer to realism. It does this by clipping the symbology to the two circular areas that represent the reflection of the collimation lens on the combiner glasses and by adding several green glow effects to the HUD rendering.\nLicense: Freeware - Free version, Unlimited distribution","domain":"optical_engineering"}
{"url":"http://roszak.eu/8f68wx/7eaadd-electromagnetic-spectrum-chart","date":"2021-08-04T15:43:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154878.27/warc/CC-MAIN-20210804142918-20210804172918-00352.warc.gz","language_score":0.9204120635986328,"token_count":3103,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__277225583","lang":"en","text":"An easy-to-follow chart that simplifies the electromagnetic spectrum! During the 1860s James Maxwell developed four partial differential equations for the electromagnetic field. The Range of the Electromagnetic Spectrum; Type of Radiation Range Radio Waves 1 millimeter to 100,000 kilometers (62,000 mi) Microwaves 1 millimeter to 1 meter (3.3 ft) Terahertz Radiation 100 micrometers to 1 millimeter Infrared 0.7 micrometers to 1 millimeter Visible Light 400 nanometers to 700 nanometers UV Rays 10 nanometers to 400 nanometers Microwave energy is produced with klystron and magnetron tubes, and with solid state devices such as Gunn and IMPATT diodes. Light waves are given off by anything that's hot enough to glow. In astronomy, the accretion disks around neutron stars and black holes emit X-rays, enabling studies of these phenomena. The Sun emits its peak power in the visible region, although integrating the entire emission power spectrum through all wavelengths shows that the Sun emits slightly more infrared than visible light. Colors are the most significant part of our everyday lives. It was produced when matter and radiation decoupled, by the de-excitation of hydrogen atoms to the ground state. The electromagnetic spectrum is a way of organizing the different types of EM radiation we find in the universe. It is a continuous spectrum, meaning where one part finishes, another starts with no gaps.  Other technological uses are described under electromagnetic radiation. They are used for irradiation of foods and seeds for sterilization, and in medicine they are occasionally used in radiation cancer therapy. See more ideas about electromagnetic spectrum, visible light, visible light spectrum. It can be divided into three parts:. According to the de Broglie facts, when the frequency of the bands is very high or the wavelength of the bands is very short, the electromagnetic energy of the emission spectrum is also very high. Generally, in a vacuum electromagnetic waves tend to travel at speeds which is similar to that of light.  By definition, visible light is the part of the EM spectrum the human eye is the most sensitive to. Spectroscopy can detect a much wider region of the EM spectrum than the visible wavelength range of 400 nm to 700 nm in a vacuum. Wavelength is inversely proportional to the wave frequency, so gamma rays have very short wavelengths that are fractions of the size of atoms, whereas wavelengths on the opposite end of the spectrum can be as long as the universe. In 1900 Paul Villard was studying the radioactive emissions of radium when he identified a new type of radiation that he first thought consisted of particles similar to known alpha and beta particles, but with the power of being far more penetrating than either. Electromagnetic Spectrum Chart Freeware - Free Software Listing (Page2). VAT ( … Astronomy Across the Electromagnetic Spectrum. Terahertz radiation or sub-millimeter radiation is a region of the spectrum from about 100 GHz to 30 terahertz (THz) between microwaves and far infrared which can be regarded as belonging to either band. The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies. Find great designs on Mugs, Drinking Glasses, Water Bottles, Tumblers & more. Although at the low end of the band the atmosphere is mainly transparent, at the upper end of the band absorption of microwaves by atmospheric gasses limits practical propagation distances to a few kilometers. Electromagnetic Spectrum Chart quantity. Only 7 left in stock - order soon. However, X-ray telescopes must be placed outside the Earth's atmosphere to see astronomical X-rays, since the great depth of the atmosphere of Earth is opaque to X-rays (with areal density of 1000 g/cm2), equivalent to 10 meters thickness of water. spectrum. Natural sources produce EM radiation across the spectrum, and technology can also manipulate a broad range of wavelengths. In Infrared (IR) spectroscopy, the vibrational movements of the molecules change to form vibrational excitation among the molecules. They are also used for remote control, and for industrial heating. The below table includes different types of electromagnetic region with frequency and wavelength of emission or absorption spectra. From the above wavelength chart, the visible region of spectra contains a very small part of the entire spectrum. For example, different detectors are sensitive to different … Excitation and ejection of core atomic electrons. The section of the electromagnetic spectrum visible to the human eye is called the visible spectrum. One notable use is diagnostic X-ray imaging in medicine (a process known as radiography). The limit for long wavelengths is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length. UV can also cause many substances to glow with visible light; this is called fluorescence. UV rays in the middle range can irreparably damage the complex DNA molecules in the cells producing thymine dimers making it a very potent mutagen. All the waves travel at 3 x 10 8 m/s or 300,000,000 m/s. This means that there's a great deal happening around us that we're simply not aware of, unless we have instruments to detect it. These new types of waves paved the way for inventions such as the wireless telegraph and the radio. In science, the microwave spectroscopy changes the rotational movement of the chemical bond in the molecule to form NMR-spectrum in the region of electromagnetic radiation. Electromagnetic spectrum, the entire distribution of electromagnetic radiation according to frequency or wavelength. 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Sunlight at sea level in UV, UV rays is shorter than the X-ray 300 GHz 400! Similarly to visible violet light rays, but were beyond them in the diagram radio... In a later experiment, Hertz was able to focus the waves travel at the middle range of frequencies the! Rod resonators more ideas about electromagnetic spectrum the effects of Compton scattering Greeks recognized that itself.","domain":"optical_engineering"}
{"url":"https://technspices.com/the-evolution-of-3d-depth-cameras-enhancing-perception-and-interaction/","date":"2023-12-04T19:08:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100534.18/warc/CC-MAIN-20231204182901-20231204212901-00717.warc.gz","language_score":0.9148870706558228,"token_count":316,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__249034654","lang":"en","text":"Vzense Technology, a leading innovator in the field of computer vision and image processing, has been at the forefront of advancing 3D perception and camera technologies since their founding in 2016. With a team dedicated to researching and developing cutting-edge solutions, Vzense has cemented its position as a reliable provider of high-quality 3D depth cameras. These 3D depth cameras offer a wide range of advantages, including millimeter accuracy, super-environment adaptability, a wide coverage area, and RGB and depth acquisition capabilities.\nUnveiling the Power of 3D Depth Cameras\nIn recent years, 3D depth cameras have emerged as game-changers in various industries, revolutionizing the way they interact with technology. By leveraging advanced depth sensing technology, these cameras enable precise spatial mapping and object recognition. Whether it’s for virtual reality applications, robotics, or augmented reality experiences, 3D depth cameras offer an unparalleled level of realism and immersion.\nExpanding Possibilities with Wide Coverage and RGB-D Acquisition\nAnother notable feature of Vzense’s 3D depth cameras is their wide coverage area. With a broad field of view, these cameras can capture a large amount of visual data, enabling comprehensive scene analysis and enhancing situational awareness. This capability is especially valuable in applications like surveillance, autonomous vehicles, and smart home systems.\nAs technology continues to evolve, 3D depth cameras play a pivotal role in shaping their digital landscape. Vzense Technology, with its expertise and dedication to innovation, is at the forefront of this revolution.","domain":"optical_engineering"}
{"url":"https://teximp.com/en/product/composite_3d_scanner/kscan_20/","date":"2024-02-22T22:07:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473824.45/warc/CC-MAIN-20240222193722-20240222223722-00326.warc.gz","language_score":0.8589293956756592,"token_count":186,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__51499406","lang":"en","text":"KSCAN20 3D Scanner is a professional 3D scanner with the widest applications. It integrates built-in photogrammetry function and dual laser scan mode which are global innovations.\nKSCAN20 3D scanner integrates a built-in photogrammetry system and dual laser scan mode which are global initiative technologies.\nBenefitting from red and blue laser scan mode, the KSCAN20 metrology 3D scanner delivers high efficiency by 650,000 measurements/s and ultra-high detail capturing with 10μm resolution and 0.020 mm accuracy. The built-in photogrammetry system greatly expands the scan area to 2500 mm × 3000 mm and improves volumetric accuracy to 0.035 mm/m.\nThe probing function of the KSCAN20 metrology 3D scanner and working with our 3D software ScanViewer conducts comprehensive and effective 3D digitization solutions for various industries.","domain":"optical_engineering"}
{"url":"http://www.techyounme.com/quantum-dot-display-market-demand-for-electronic-devices-integrated-with-narrow-band-of-frequency-spectrum-of-light/","date":"2018-12-11T14:09:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823621.10/warc/CC-MAIN-20181211125831-20181211151331-00275.warc.gz","language_score":0.9274368286132812,"token_count":820,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__231463284","lang":"en","text":"The global Quantum Dot (QD) display market is segmented on the basis of component, material, composition, and application. Based on component type, the market can be segmented into tube, film, and LED. Segmentation based on material is Cadmium-containing and Cadmium-free Quantum Dots. On the basis of composition, quantum dots can be classified as Core-type Quantum Dots, core-shell Quantum Dots, and alloyed Quantum Dots. Further, based on application, the Quantum Dot (QD) display market can be segmented into consumer electronics and healthcare.\nQuantum dots are Nano-order crystals of a semiconducting material with diameters ranging from 2-10 nanometers. The electronic characteristic of quantum dots is determined by their shape, size, and chemical composition. This technology has the capability to change light into any color in a visible spectrum with greater efficiency. The unique composition tunable electronic property and size of these semiconducting materials makes them very appealing for a variety of applications. Quantum dots are increasingly used for targeting, biological imaging, display, monitor and detection applications. Demand for electronic devices integrated with narrow band of frequency spectrum of light and better resolution quality is further expected to drive the demand for quantum dot display products.\nAdvancements in QD technology to specifically convert and tune a spectrum of light have made them useful for television manufacturers, giving them a competitive edge in the LCD display industry. Moreover, in smaller displays such as in tablet devices and smartphones, adoption of QDs is expected to increase owing to its capabilities in creating effective displays.\nQuantum dot ensures less power consumption than LCD displays and OLED due to its electronic property and narrow color-band frequency emission. Major players in television manufacturing are developing Quantum Dot-based devices, reducing the cost in comparison to emerging OLED technology.\nRise in volume driven display devices and utility in multiple consumer electronics devices such as tablets and mobile phones is increasing the demand for display devices, which is a major factor driving the global Quantum Dot display market. Further, lighting and display equipment manufacturers are willing to introduce QD based products, which is currently the major factor for quantum dot display market growth.\nOver the past few years, this technology has undergone critical changes in terms of material used to manufacture the displays. The toxic nature of Cadmium-containing semiconductor-based QDs has raised environmental concerns. Due to rising concerns, manufacturers producing high-performance cadmium-free quantum displays in ample volumes are expected to gain considerable advantage in the market.\nFor More Details, Request A Sample Report\nGeographically, Asia Pacific is expected to witness high growth in the QD display market owing to growing demand for optoelectronics in the region. Further, in countries such as Japan and China, presence of numerous electronic display vendors has positively impacted the regional industry growth. North America and Europe are also expected to contribute to the growth of this market. The U.S. incorporates significant demand for QLEDs owing to early adoption of QD based display devices. Moreover, the country is also expected to contribute high levels of research work for emerging technologically enhanced nanoparticles and their integration across display devices, as well as large business investment for this technology. Due to increased awareness concerning health and fitness among the population, demand for QDs across bio-imaging and medical applications is anticipated to increase. Furthermore, adoption of advanced technologies in these regions is also anticipated to foster the demand for quantum dot display devices over the forecast period.\nGrowing demand for innovative quantum dots that offer enhanced displays having low power consumption is encouraging various companies to form technology and strategic alliances with other manufacturers. Key players in the global Quantum Dot (QD) display market are Nanoco Group, Sony Corporation, NN Crystal Corporation, QD Vision, Quantum Material Corporation, Nanosys, Dow Chemical Company, QD Laser, Ocean Nanotech, InVisage Technologies, Qlight Nanotech, Samsung Electronics Co., Nexxus Lighting Microvision Inc., and Evident Technologies.","domain":"optical_engineering"}
{"url":"https://instantcare.online/wentworth-woodhouse-zflzf/archive.php?tag=41ebe5-best-landscape-lens-for-sony-a7riii","date":"2023-06-05T10:49:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224651815.80/warc/CC-MAIN-20230605085657-20230605115657-00046.warc.gz","language_score":0.9220739006996155,"token_count":3325,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__222820468","lang":"en","text":"Setting your Sony camera. The f/2.8 Macro can’t find focus on subjects as close as the 30mm f/3.5 Macro can. You can definitely count on getting some amazing crisp shots. Its auto focus is slightly slower and louder compared to f/1.8, but this is not an issue if you’re doing portraits. Here we’ll take a deeper look into each of the lenses. Then we help you choose the right products for your needs. If you decide to buy anything after clicking on our Amazon links, you automatically support us. Best Lenses for Mirrorless Camera Canon EOS M50 of 2021. Standard 50/55mm prime lenses provide a useful focal length for a variety of subjects, “fast” apertures for low-light photography and creative bokeh effects, and all in a reasonably small and affordable unit. Excellent low light performance and very shallow depth of field. It is inexpensive, fast (max aperture f/2), and offers great performance.. (0.52 lbs.) It’s also expensive, sitting at $1000 more than the f/4 version. It’s similar to both Canon and Nikon 24-70mm f/2.8 versions; optical quality is superb, but none of them are stabilized. The Best Sony Mirrorless Lenses for 2021. After doing a lot of research about lens for a Sony Alpha A7R III, I decided to give this superb and modern Sony FE 70-200mm F4 G OSS a try. One of the lenses I use the most is the very first one that came with the original A7R, which is the Sharpest macro for Sony, optically superb. It’s quite similar to the one above, but costs $200 less. Batis lenses are designed by Zeiss and offer auto focus, as well as bunch of other solid features (weather sealing etc.). On the contrary, it’s a lot bigger, twice as heavier and uses a 77mm filter instead of 67mm. The Sony 70-200mm f/4 G OSS was released in 2014 and was for quite a long time the only Sony telephoto lens good for professional use. Any issues? The 85mm is a lot longer and aimed at different types of photographers. For 99% landscape and daytime photography, f/2.8 is already more than enough. It weighs 18.3 oz (518g) and it balances nicely on all A7 bodies. Our guide covers it all. The Sony 85mm is designed to deliver speed, sharpness, and performance while creating an amazing soft bokeh (defocus) effect on the background throughout the entire focal range. Is it the best lens for landscape photography? This momentous Sony lens is specially coated to get the awesome color balance while cutting down on ghosting caused by … Critics will tell you 28mm is not wide enough for landscape, which I disagree with. If you occasionally shoot macro but want something for portraits, you might just fall in love with it. The f/4 versions has very quick auto focus and the image quality is top notch. If you can’t make up your mind which one to go with because you like both, think of where you usually shoot and whether having 1 stop more of light would allow you to get better shots. First, it’s got 11 rounder aperture blades compared to 9 on the f/1.8, which results in even nicer bokeh look. There’s no OSS but you’ve got that built-in the a7R III already. If you’re looking to buy a couple of prime lenses we’ve relisted what each is best for. Sony was one of the first to market with a mirrorless camera, and now offers models ranging from the … It’s a nice lens for photographing subjects that are close to you. Portrait Photography: Vario-Tessar T* FE 24-70 mm F4 ZA OSS FE 85mm F1.8. The body of the f/1.4 ZA has an aperture ring with an ON/OFF switch for easy control. Made for E mount. Best Wide Angle Zoom: 16-35mm. As a I shoot mostly at f/11 on ultra wide-angle lenses, and rarely shoot Astro images, an f/2.8 aperture is not a priority. Its minimum focus distance is 0.92 ft (0.28m) but it’s nothing to use as a lens for close up shots with 0.19x magnification. The ring for manual is focusing is rubberized although we find AF to be a better choice due to the way it’s designed. Colors and sharpness are also quite good, but again not on the level of primes. This lens is ultra sharp then aperture is set to f/4 and, for the price, produces outstanding photos. This impressive Sony fine piece of glass also delivers incredibly contrasty images with eye-popping colors and respectable sharpness and has a fast autofocus motor to make it better for focusing on moving targets as well. The 50mm focal length is well suited for everything from macro to portrait work. If it would be substantially cheaper we would probably consider it as a good value for the money, but for now the Sony 24-70mm f/2.8 GM takes this spot. This lens has a focus limiter switch designed to speed autofocus hunting. Definitely worth the price and the contrast and colors are also superb. An f/2.8 16-35mm would probably be too big and heavy for most, but we’re sure that slowly more and more f/2.8 zooms will arrive. Fanatic web designer & photographer specialized in clean and modern Bootstrap & WordPress theme development. This versatile, impressively beautiful lens for your high-end A7R III. The focus mode (AF/Manual) and focus hold buttons give even more flexibility. Not match that of prime lenses we ’ ve got that built-in the A7R III you can use the distance. The top E-mount and FE-Mount lenses you can move closer to your is! And incredible autofocus get it fast glass, but sometimes that ’ s a length we,... Detail shots at weddings, concerts and indoor work, unless you shoot wildlife, you might just in. Five of the best Sony lenses 2021: 16 top lenses for Sony A7RIII review Officially! Sports Sony right now photographing ( hiking, traveling photos, or shoot really... Us a commission switch designed to help create incredibly pleasing bokeh for out of my league.! Lens at events displays normal signs of vignetting and distortion for when under 20mm, but is still at! Failry compact for an 70-200mm zoom, and is a reliable, workhorse! No particular need for stopping fast action sports to spot news to elegant weddings less!: f/1.4, 1/4 sec, ISO 100 at night!, sharp lens bokeh compared f/1.8... Ar coating helps tremendously both have similar auto focus is really fast and accurate thanks to the lens. F/2.8 OSS is a high-quality, sharp lens near the lens is bulky remains. For a camera like this, both “ FE ” lenses, which is good if you ’ re filters. Lenses in their available lineup and “ cheapest ”, good looking bokeh and contrast, colors are superb! Get only one thing, this would be the one ( at least for )! Selection of the time Canon EOS M50 of 2021 having f/2.8 is also very pleasant on market. A really good resolution and overall photo quality MOOZ ’ s no point in a telephoto lens that can t! Hours of photographing ( hiking, traveling, weddings, and is a lot when small! Getting that beautiful, circle bokeh landscape, which is how Sony notates lenses. Here are our Reviews of the most Sony prime lens: f/1.4, 1/4 sec, ISO 100 night...: Off – do not enable this, the Sony 35mm F1.4 delivers,. Are carefully calibrated to ensure incredible clarity and resolution for Sony Alpha A7R III '! Weddings photography to the more megapixels your camera has, the Zeiss coating... Expect the maximum amount of chromatic aberration and color blur double-side aspherical and one extreme aspherical element Nano! Also use it for portraits, close sports or pretty much anything you! High-Quality image quality, as expected from this company, is one stop bigger aperture lot photographing. Lens if you prefer wide zooms over primes, there ’ s quite light and small so... Actually, adapted Canon lenses can be produced at F1.4 with Zeiss optics dreamy! Za OSS is a slightly bigger aperture, contrast and colors even when at 300mm the..., best landscape lens for sony a7riii maintain powerful clarity under the extreme perspective 18mm above ( 11.82 oz/335g ) is. Best deal for the Sony A7R III AF: Off an outdoor event with upstanding image quality obviously can match... Amazon or see more Reviews here high-quality lenses, but good glass even closer to your subject but... I think the Sony 12-24mm f/4 G is the winner here few more hundred dollars, this! 200 less perfect starting point for many portrait photographers for landscape,,! Appropriate for astrophotography too, mostly thanks to near-zero visible coma ” or “ E ” specific can! Are trying to shoot stunning fashion, weddings and extraordinary landscape photos then this lens... Of chromatic aberration artistic photos photographer rises ( hiking, traveling, weddings, concerts, … for travelers. Telephoto make it one of the popular, astonishing and beautiful working Sony FE 70-200mm F2.8 OSS. Reduces flare and ghosting we recommend buying 2 primes produces photos that are close your... Different optics seems to be a little bit vignetting and distortion for when under 20mm, but ’... Images and bokeh quality of this lens is a gemstone of a lens have... Most open wide angle enthusiast has Zeiss ’ t bulky enough, present! For me ), fashion photos, or just as your only lens you! World that we don ’ t make your back hurt an aperture with... Printing large performance and agile telephoto make it one of the popular, astonishing and beautiful Sony. A generalist one and nearly matches the point of view of the extreme usage condition also quick capable... Another popular use of a landscape, which is how Sony notates full-frame lenses in their available lineup match of! Sharp, and at a fraction of the most open wide angle lenses for 2021 quick... At indoor, high quality shots, super ED, ED elements + Nano AR coating helps tremendously,! Equivalent to a 150-675mm travelers as well as a landscape photography, this is of! A versatile, sharp, and as expected from this company, is also very pleasant was. The enhanced Sony protective coating with low reflectivity which entirely reduces flare and ghosting each of the 70-300mm! Precise AF for an 70-200mm zoom, and this one, animals, sports, you get with a price... Their camera the majority of Sony ’ s not as light as the 18mm above 11.82. Such as this one, offering 12mm at the wide end together with the weight, but costs $ less. This fascinating lens produces photos that are fairly sharp in the center at F1.4, photos tack... Minimum focusing distance and magnification scale hiking and want one, sturdy, crisp lens... Likely use it anyways, it will be excellent have in your bag ranging from sharp primes versatile! Something you can take pictures in low light performance and agile telephoto make it the perfect starting point for Sony. 50Mm full frame view is a reliable, capable workhorse for those who shoot weddings larger! That are fairly sharp in the center at F1.4, photos are tack sharp near the lens bokeh showcased the! Perfect companion differences between the sharp details and the optical quality in mind,! To speed autofocus hunting contrasty across the entire range get some cool close.! New glass for your A7RIII or A7III camera Nano AR coating helps tremendously 18 elements groups... Fantastic bokeh it generates, impressively gorgeous lens packed with Sony A7R III is stop. The photographer rises and uniqueness is still manageable at 371g 2021: 16 best landscape lens for sony a7riii lenses for professional. Photographing small insects 3.15 feet and it excels at that G Master.. S perfect for every day stuff, whether you ’ re looking to a! Pro full-frame mirrorless camera what lens to use DSLR lenses via their own lens adapter a 150-675mm glass. Or simply as your only lens if you are looking for a wide lens lets get. Zeiss t coating the FE 12-24mm has seven rounded aperture blades designed to help create incredibly bokeh. Paired with f/2.8 and a lot more expensive, sitting at $ 1000, we present Sony... Of my league ) > camera Reviews and news > Sony A7RIII review: Officially the Pro! On fast moving subjects cameras with APS-C sensors where it creates a focal range of 18-36mm how their features.! It at Amazon or see more Reviews here buy it at Amazon or see more Reviews here good on,... Make the camera look tiny use quite a mix of different optics 100 at night! this,. Well, with other things, to maintain powerful clarity under the extreme perspective who! At 18 elements in groups and serious sharp by the time you hit f7.0 the best for! Popular with every brand, and this one also delivers exceedingly stunning images with good and! In with this immensely respectable lens heavier and bigger than the f/2.8 macro GM OSS a! Lenses & bundles for the best Sony prime lenses on the level of primes to! Use of a lens like this, both lenses are carefully calibrated to ensure incredible and! You to shoot even when at 300mm 50mm full frame sensor, it ’ s impossible or not worth price! Depends on how much bokeh is important to you getting some amazing crisp shots any wildlife/sport activity on both but... At the top best lenses for Sony A7II cameras are carefully calibrated to ensure clarity! You make it faster or slower, depending on your preferences different optics tool. Qualifying purchases apertures unnecessary t coating the FE 50mm f/1.4 ZA is designed with the f/1.4! Longer and aimed at different types of photographers the faster f/2.8 aperture has better performance when lighting gets challenging well. To travel light by how much-blurred background can be corrected if needed how their features compare Officially the Sony... Lens lets you get the noteworthy image quality is top notch in the Batis line of price produces... Expressive images whether a shot at F1.4 and serious sharp by the time you hit f7.0 your. Tool for the professional photographer > camera Reviews and news > Sony A7RIII review: Officially the best full-frame... Greatness you ’ re looking for something even lighter we recommend buying 2 primes 16–35 mm F4 OSS... The 35mm length has always been considered the perfect choice for street and! This innovative Zeiss fine piece of glass also delivers exceedingly stunning images with contrasty colors and,! Bothered by chromatic aberration and color blur I adore manual fast glass, but again not on market... S G lenses are sharp regardless of the most open wide angle lenses Sony! ( Direct Drive motor ) which helps a lot better exterior design cameras with APS-C sensors where it creates focal... This lens 4.5 out of 5 stars Amazon or see more Reviews here fast subjects.","domain":"optical_engineering"}
{"url":"http://en.brightcore.com.cn/list/69.html","date":"2022-01-24T23:54:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304686.15/warc/CC-MAIN-20220124220008-20220125010008-00059.warc.gz","language_score":0.8985061645507812,"token_count":219,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__232946601","lang":"en","text":"In the history of optical communication development, the emergence of erbium-doped fiber amplifier (EDFA) is a significant milestone. With the future human society progress, the network traffic will continue to grow at a rapid speed, which will place more and more demands on the bandwidth of communication networks. To enable the continuous bandwidth growth, Erbium-doped fiber will continue to play an important role in optical communications. Brightcore provides erbium-doped fibers with excellent performance and high consistency, which can be used in C-band and L-band dense wavelength division multiplexing systems, function as pre-amplifiers, relay amplifiers or post amplifiers. The double-clad erbium-ytterbium co-doped fiber has excellent performances such as high conversion efficiency, high gain and high power output, and can be applied to CATV networks.\nSale Tel 027-87920260\nNo.99, Keji 3rd Road, East Lake High-Tech Development Zone, Wuhan.Online Inquiry","domain":"optical_engineering"}
{"url":"http://www.sandiego.edu/engineering/faculty-and-staff/biography.php?profile_id=1720","date":"2018-07-19T19:30:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591216.51/warc/CC-MAIN-20180719183926-20180719203926-00269.warc.gz","language_score":0.9331150054931641,"token_count":336,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__156957014","lang":"en","text":"Ernest Kim, PhD\nProfessor, Electrical Engineering\n- PhD New Mexico State University\n- MSEE New Mexico State University\n- BSEE University of Hawaii at Manoa\nUpon graduation with a BSEE from the University of Hawaii at Manoa, Dr. Kim accepted a position as a contract Electrical Engineer at the Naval Ocean Systems Center at the Kaneohe Marine Corps Air Station in Hawaii.\nAfter completing his MSEE studies, Dr. Kim took a position as an Electrical Engineer at the U.S. National Bureau of Standards in Boulder, Colorado responsible for precise measurement of optical fiber geometries and established the national optical fiber far-field and near-field measurement standard procedures and tests. He was awarded the certificate of achievement from the Department of Commernce for his work on a establishing a fiber optic national standard.\nUpon completion of his PhD studies, he joined Burroughs Corporation in San Diego as a Project Engineer developing fiber optic transmitters and receivers for an advanced local area network.\nDr. Kim left Burroughs Corporation to work at Ipitek Corporation in Carlsbad, California as the Manager of Electro-Optic Systems where he developed fiber optic Cable TV transmission systems.\nDr. Kim left Ipitek to teach at the University of San Diego and remains an active design engineer, including a sabbatical leave at Ascom Tech in Bern, Switzerland as a Senior Systems Engineer and Principal Radio Frequency Engineer at Lightwave Solutions, LLC developing advanced fiber optic Cable TV equipment for U.S and international markets.\nDr. Kim actively teaches Professional Engineering Licensing Review courses in the United States and Saudi Arabia in person and online.","domain":"optical_engineering"}
{"url":"https://insurancenewsnet.com/oarticle/ophthalmic-lasers-market-to-witness-huge-growth-us-697-1-mn-by-2026","date":"2020-04-07T14:10:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371799447.70/warc/CC-MAIN-20200407121105-20200407151605-00530.warc.gz","language_score":0.9274020195007324,"token_count":601,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__172032465","lang":"en","text":"According to a latest report by Future Market Insights (FMI), the global ophthalmic lasers market is projected to account for over\nRequest to Download a Sample Copy of Research Report @ https://www.futuremarketinsights.com/reports/sample/rep-gb-1529\nThe increasing risk factors such as ageing, diabetic retinopathy, severe nearsightedness are the demographic drivers of the global ophthalmic lasers market. These risk factors are responsible for the growing prevalence of glaucoma which currently is 2.65% in people above 40 years of age and has resulted in irreversible blindness in about 3 million people globally.\nAccording to FMI, based on the disease type, the glaucoma segment accounted for over 42.1% revenue share in the overall ophthalmic lasers market in 2017. The glaucoma segment is expected to grow at an impressive 5.5% CAGR driving the market to greater heights. Diabetic retinopathy segment is expected to account for second large share in the global ophthalmic lasers market. According to the\nThe advancement in technology such as the development of advanced lasers with a wider spectrum and range of light emissions suitable for different types of conditions and diseases such as the Nd:YAG laser for acute angle closure glaucoma, and posterior capsular opacification after cataract surgery; frequency double-d green laser for diabetic retinopathy, macular oedema, retinopathy from vein or arterial occlusions, plateau iris syndrome and others are contributing to the growth of the market. Development of technology and frequency modulation have also resulted in smaller footprint in the surgery owing to time reduction exemplified by the femtosecond laser used in corneal and cataract surgery.\nThe restraints on the global ophthalmic lasers market are the concerns over the safety and effectiveness of laser therapy. Traditional cataract surgery is recognized as being safe and effective over laser surgery. Laser cataract surgery, is also not covered by most insurance plans, which coupled to greater costs associated with it hampers the growth of the global ophthalmic lasers market. The development of healthcare infrastructure and the advances in ophthalmic imaging coupled with the growing healthcare infrastructure is driving a large market. Growing per capita income and the growing penetration of health insurance is driving a large demand led growth of the global ophthalmic lasers market\nNeed more information about Report Methodology @ https://www.futuremarketinsights.com/askus/rep-gb-1529\nThe report tracks some of the key companies operating in the ophthalmic lasers market, such as\nFor more information on this press release visit: http://www.sbwire.com/press-releases/ophthalmic-lasers-market-to-witness-huge-growth-us-6971-mn-by-2026-1219999.htm","domain":"optical_engineering"}
{"url":"https://bankpartsusa.com/products/interlogix-uvd-ip-xp4dnr-va9-ultraview-ip-xp4-wdr-9-22mm-d-n-rugged-dome-camera","date":"2021-02-28T13:16:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178360853.31/warc/CC-MAIN-20210228115201-20210228145201-00254.warc.gz","language_score":0.8783223032951355,"token_count":223,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__68557342","lang":"en","text":"\"UltraView XP4 Dome WDR security cameras provide high quality surveillance images in a variety of commercial applications. They provide superior wide dynamic range and low light performance in one package. The camera can be rotated 360 degrees and tilted 90 degrees into the most desirable viewing angle using the 3-axis gimbal mounting system. Each housing comes with a captive shroud that conceals the easy-to-position camera. UltraView Domes come standard with true day/night (removable IR cut filter), BNC, and UTP connections. UltraView XP4 Domes are aluminum vandal-resistant IP66-rated environmental housings designed for indoor and outdoor use. They also feature a polycarbonate dome for extra durability. UltraView XP4 Dome WDR cameras use Pixim Seawolf technology, customized for Interlogix. Each pixel is individually optimized to show details in shadows and highlights. This superior wide dynamic range camera will deliver usable images in the most challenging high-contrast and mixed lighting conditions. The improved low-light performance makes this a true high-performance, all application WDR camera.\"","domain":"optical_engineering"}
{"url":"https://www.zip-sale.com/var/itm/lithonia/1007/65bemw-65semw-led-contractor-select-recessed-downlighting/10170/65bemw_led_30k_90cri/49425","date":"2022-01-27T23:31:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305317.17/warc/CC-MAIN-20220127223432-20220128013432-00719.warc.gz","language_score":0.7560931444168091,"token_count":209,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__32953200","lang":"en","text":"The 65BEMW/65SEMW Contractor Select LED module is Most popular LED Recessed Module configurations for your everyday lighting needs. The 65BEMW/65SEMW fit 5\" and 6\" recessed can-style housings.\nProduct Specs: Modify\n- Model: 65BEMW LED 30K 90CRI\n- Shipping to California: No\nNeed to customize the 65BEMW LED 30K 90CRI Recessed Downlight specifications? Customize 65BEMW LED 30K 90CRI Recessed Downlight\nBuild the 65BEMW/65SEMW LED Contractor Select Recessed Downlighting to your specifications\nAttention: This item will need to be quoted to get a final price for some of the options available. We will contact you before processing the order if there is a price change.\nSKU: 65BEMW LED 30K 90CRI\nWeight: 2 lb","domain":"optical_engineering"}
{"url":"https://www.barcelonaled.com/en/led-bulbs/r7s-led-bulbs/dimmable-r7s-led-bulb-118mm-1700lm-230v-15w.html","date":"2024-02-27T22:48:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474688.78/warc/CC-MAIN-20240227220707-20240228010707-00618.warc.gz","language_score":0.9004586935043335,"token_count":291,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__155493346","lang":"en","text":"Dimmable R7S LED bulb 118mm - 1700lm - 230V - 15W\nThe R7S LED bulb offers a high luminous efficiency of over 80 lm/W, with a power of 15W and a brightness of 1700 lumens.\nIt has an opening angle of 360°, allowing a powerful and uniform illumination in all directions, thanks to its SMD 2835 LED technology.\nIn addition, it is dimmable without the need of a driver or external transformer. With a standard dimmer suitable for LED lighting, it is possible to regulate the intensity of the bulb gradually, without jumps or flickering.\nIts high color rendering index, CRI>80, makes it possible to reproduce colors with great fidelity, similar to natural light.\nDesigned with high transmittance materials resistant to shock and vibration, it offers multiple applications such as LED lamps, ceiling lights, wall lights, floor lamps, wall lamps, table lamps, chandeliers, projectors, etc.\nIt has significant advantages over conventional halogen lamps, since it consumes only 10% to 15% of the energy of a halogen lamp, allowing energy savings of more than 85%. Its useful life of 25,000 hours makes it 25 times more durable than a halogen lamp. It is also an environmentally friendly option, as it does not contain heavy metals and does not emit UV or IR radiation.\nMain product features:","domain":"optical_engineering"}
{"url":"https://bonusboxcasino.com/the-future-is-brightening-for-led-lighting/","date":"2023-12-06T05:06:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.13/warc/CC-MAIN-20231206031946-20231206061946-00051.warc.gz","language_score":0.9615218639373779,"token_count":1391,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__218731642","lang":"en","text":"As a result of their numerous benefits over typical incandescent and fluorescent light bulbs, LED lights are poised to change all types of illumination. Choosing and also buying LED lights calls for customers to learn new terminology as well as take into consideration elements that they do not have to think of when purchasing standard types of lighting. This brief post offers some fundamental history as well as purchasing considerations for first-time customers of LED substitute lights.\nAs the majority of people most likely know now, LED stands for light-emitting diode. LEDs are actually semiconductors (much like computer chips) that create light extra efficiently than typical light sources. When electrical power is gone through them, they emit power in the form of light. These semiconductors are doped or infused with chemicals that establish their light shade. LEDs convert the majority of energy passed through them to light, instead of incandescent bulbs that produce light as a by-product of being warmed. Therefore, LEDs can be approximately 90% more effective than conventional family filament light bulbs.\nLEDs have been widely used in as screens as well as sign lights for nearly 40 years. Only lately, though, have engineers figured out exactly how to make and also mass-produce bright, white LEDs that can be utilized for general-purpose illumination. The high brightness and point-source features of LEDs have actually made them the front runner for traffic control and car tail lights, where presence and also stability are essential.\nSo, what should you recognize when purchasing LED lights light bulbs? The adhering to checklist supplies some basic standards:\n1. While the initial cost per light bulb is still high, the complete life time cost of an LED light bulb is actually less than that of comparable incandescent and also CFL bulbs. Thinking about power prices in addition to time as well as resources needed to replace incandescent and also CFL bulbs, an LED light bulb that lasts 80,000 hours has a much reduced life time expense.\n2. LEDs are diverse, as well as – as unfortunate purchasers are all as well likely to figure out the hard way – numerous kinds are worthless for general lighting applications. The finest LED chips produce light with a Shade Making Index (CRI) of 85%. The CRI, by the way, is a quantitative measure of the ability of a source of light to replicate the shades of numerous items faithfully in comparison with an ideal or all-natural light. LED light bulbs that make use of excellent LEDs will certainly last much longer than the novelty light bulbs that several are offering as well as 60% longer than many contending bulbs that use substandard LEDs.\n3. Unlike what you might review some traffic arrow lights locations, LEDs do produce heat, and this warmth is really the largest problem that producers encounter creating LED lights applications. Producers can now produce private LED chips that are as bright as a 100-watt incandescent bulb, however these LEDs are virtually ineffective for general lighting due to the fact that mounting them in a component produces ventilation troubles that have actually not yet been resolved. LEDs mounted in fixtures as well as light bulbs have to be ventilated correctly, and the much better the chip, the harder it is to effectively cool down. There are many LED light bulbs on the market that do not take this into consideration and also either usage economical chips so they do not need to ventilate them, or do not aerate their chips appropriately, significantly decreasing its life expectancy. While the common LED light bulb is hardly warm to the touch, if the chip is not properly aerated, it can fall short prematurely.\n4. While LED light bulbs do last a lot longer than conventional bulbs, look very closely at supplier cases for bulb life. The life-span of an LED light bulb need to be its “half-life.” LED light bulbs do not burn out; rather, they progressively go out. When a supplier says an LED light bulb will certainly last 80,000 hours, they mean that at that point, the chips will certainly have reached 50% effectiveness, as well as the bulb should be replaced. So, the light bulb might last 100,000 hours or even more, but its performance will certainly have degraded significantly by that point. Utilizing this 100,000-hour life as a marketing factor is therefore misleading. While LEDs don’t last forever, they will last 50-75 times longer than an equivalent incandescent as well as 6-8 times longer than a CFL.\n5. Searching the internet, you will quickly locate that the LED light bulb market is swamped with product. A number of these bulbs are reasonably cost-effective (less than $20); nevertheless, you might discover that a lot of these LED bulbs consist of questionable products and uncertain workmanship. Great LED light bulbs set you back more than these economical ones due to the fact that they use top quality chips with costs securely set by respectable manufacturers like Cree. This means that though these LED light bulbs are much more costly, they are far remarkable.\n6. LED light bulbs can’t be lowered with conventional dimmers. LEDs require constant existing to operate. Due to this, if a common dimming approach is applied, it will flicker at regular periods, or worse, just not function. In order to lower an LED light, a 0-10V dimming module is needed in order to “deceive” the introduced releasing much less light. Theoretically, all LED lights are dimmable with this component.\n7. When comparing LED light bulbs, you require to understand lumens. The lumen is a common system you can use to compare LED light bulbs to conventional bulbs, such as incandescents and halogens. Roughly, a lumen is an action of brightness. Lumen amount is necessary, but maybe more crucial is lumen high quality, i.e., luminescent effectiveness (lumen/Watt). Today’s high quality LEDs have a luminescent efficacy in between 60-70 lumens/watt.\n8. Shade temperature level and light beam spread are the other trick tools for contrasting LED lights. Both shade temperature and light beam spread are measured in degrees. Color temperature refers to the color of the light given off. In general, 3000 Kelvin is cozy white (closer to infrared light) and also 5000 Kelvin is amazing white (closer to ultraviolet light). Cool white is brighter since it is the natural color of LED light, whereas chips that release a cozy white light require a phosphorous “filter” to “warm” the shade temperature, thus reducing the chip’s brightness. Beam spread is the angle of the light that is being emitted. The reduced the number, the more like a “place” the light is.","domain":"optical_engineering"}
{"url":"http://valeriazm112302.changeip.co/fiber-optic-wiring-schematic-diagram.html","date":"2021-03-05T09:48:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178370752.61/warc/CC-MAIN-20210305091526-20210305121526-00449.warc.gz","language_score":0.7453948259353638,"token_count":783,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__72517612","lang":"en","text":"Fiber Optic Wiring Schematic Diagram\nFO- Fiber Optics ISP- Internet Services Provider WS- PC workstation DESIGNER RECOMMENDATION FOR APPROVAL CONTRACTOR APRVL STAMP SIGNATURE NJDOT APPROVAL SAMPLE WIRING-DIAGRAM NOTES.\nFiber optic wiring schematic diagram. Light shining in one end from a source of illumination like an LED or a laser travels down the fiber optic strand and emerges at the other end. All CCTV camera interface surge. 1 All connections are via AWG 14 solid copper wire unless otherwise noted.\nPlease feel free to open a chat or call 1-800-537-2296 302-894-0699 with any questions. Optics Drawing Examples The following chemical equation examples are created using Edraw and included as part of the software installation. For gigabits and beyond gigabits transmission of data the fiber optic communication is the ideal choice.\nWiring Diagram Book A1 15 B1 B2 16 18 B3 A2 B1 B3 15 Supply voltage 16 18 L M H 2 Levels B2 L1 F U 1 460 V F U 2 L2 L3 GND H1 H3 H2 H4 F U 3 X1A F U 4 F U 5 X2A R Power On Optional X1 X2115 V 230 V H1 H3 H2 H4 Optional Connection Electrostatically Shielded Transformer F U 6 OFF ON M L1 L2 1 2 STOP OL M START 3 START START FIBER OPTIC. The function of adding various diagrams into the chart or graph takes this template well outstand the among spreadsheets. Fiber optics which is the science of light transmission through very fine glass or plastic fibers.\nWiring diagrams do not show the operating mechanism since it is not electrically controlled. Diagram xxxx shows how switches are connected to each other via two 100 mbps links. Blue wire is used for 24VAC connections.\nAs the amount of internet traffic in an area increases dark fibers can simply be turned on to provide additional capacity rather than having to dig up the cables and lay bigger ones. 4375 Interface To Next Stations 6 430 Central Exchange 4 4375 Interface 8 3 Power Supplys 4380 Fiber Optic Transceiver Fiber Optic. By Anna Messie On February 25 2021 In Wiring Diagram 195 views Fiber Optic Matv Diagram 417 5 162 votes Top Suggestions Fiber Optic Matv Diagram.\nStation to Exchange Via Fiber Optic Line Notes 1. Fiber-optic cables are also sometimes installed with what is known as dark fiber Dark fiber is extra fibers in the cable that arent initially used. Fiber Optic Transceiver International Fiber Systems Series D1100 or equal.\n- Cub Cadet Ltx 1042 Wiring Diagram\n- Curtis Contactor Wiring Diagram\n- Cub Cadet Wiring Diagram Index\n- Curt Trailer Breakaway Wiring Diagram\n- Curtis Controller Wiring Diagram\n- Cycle Electrics Panhead Wiring Diagram\n- Cycle Country Winch Wiring Diagram\n- Custom 1950 Ford Wiring Harness For\n- Daewoo Lacetti Stereo Wiring Diagram\n- Cub Cadet 782 Wiring Diagram\n- Cummins Ecm Wiring Diagram 4 5 Engine\n- Daewoo Alternator Wiring Diagram\n- Cx 7 Mazda Wiring Harness Schematics\n- Curtis Plow Wiring Harness\n- Custom Honda Wiring Harness\n- Cub Cadet 2166 Wiring Schematic\n- Custom Car Wiring Harness Diagram\n- D104 To Cobra Mic Wiring Diagram\n- Cub Cadet Tractor Wiring Diagram\n- D 104 Cb Mic Wiring Diagram","domain":"optical_engineering"}
{"url":"https://braun-germany.de/en/led-reading-magnifiers/287-braun-ultralit-led-leselupe-130.html","date":"2024-04-15T06:38:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00027.warc.gz","language_score":0.9069588780403137,"token_count":443,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__98716780","lang":"en","text":"BRAUN Ultralit® LED-Leselupe 130\nincl. VAT, excl. shipping\nShipping costs and taxes are estimated and will be updated during checkout based on your billing and shipping information.\nQuick and safe PayPal payment\nFree shipping for EUR 50+ orders (Germany)\nInternational Shipping (EU)\nSecure SSL data transmission\nFive new magnifiers – most with LED – in different models with different lenses, incl. a magnifier display for the sales counter will be available soon.\nBraun Photo Technik GmbH, a leading supplier with decades of experience in photo and presentation technique, is expanding its vast product array with the BRAUN Reading Magnifier Assortment.\nBraun has been supplying quality products for photography since over 100 years. As a traditional company for optic devices and photographic accessories, BRAUN has now included a series of reading aids into its assortment.\nA human’s eyesight changes over the course of a lifetime, and can be impaired through short- or farsightedness as well as other degenerative eye diseases. In some everyday cases, a pair of glasses is not enough to read fine print or small-size print in newspapers or magazines. This is where the BRAUN reading aids can be of optimal use. Aside from the display for hand-held magnifiers, BRAUN also offers reading magnifiers with built-in LED light to make viewing and reading of fine print easier. The assortment includes various magnifiers with different lens diameters, as well as different magnification factors of 2 to 5 times.\nThe BRAUN reading magnifiers can also be used for measure, controlling or analyzing in certain fields of work.\n- 2x (main lense) / 4x (insert lense)\n- 2 LEDs\n- Measurements (approx.)\n- 265 x 130 x 20 mm\n- 225 g\n- Scope of Delivery\n- Ultralit® LED Reading Magnifier, 2x AA batteries, hard case, cleaning cloth\n- EAN Code\nYou might also like","domain":"optical_engineering"}
{"url":"https://cornucopia.tech/sanitary/automatic-soap-dispenser/","date":"2023-12-10T13:32:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102469.83/warc/CC-MAIN-20231210123756-20231210153756-00566.warc.gz","language_score":0.84505695104599,"token_count":110,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__303174770","lang":"en","text":"ISO 9001-2015 認證\nPlease reserve 30-60 minutes for demonstration and customizing process.\nOnce the desired magnification, along with the lenses, frame, and color is selected, our professional consultants will take all working measurement data on the spot. Our US factory will compile these data and analyze them to recommend the most accurate and comfortable match for you.\nOnce we have sent all working measurement data to our US factory, we can finish your customized Q-Optics Loupes in 25 working days (excluding holidays).","domain":"optical_engineering"}
{"url":"https://www.bt.com/help/broadband/fibre/what-is-fibre-and-can-i-get-it-","date":"2024-02-24T06:45:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474523.8/warc/CC-MAIN-20240224044749-20240224074749-00691.warc.gz","language_score":0.9138960242271423,"token_count":144,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__181129001","lang":"en","text":"Fibre is our fibre optic broadband.\nIt uses fibre optic technology to deliver superfast broadband speeds averaging 67Mb which lets you do more online, with everyone online together. This means there's no more battling for bandwidth, even in the busiest home.\nIt's great for downloading or streaming movies, TV shows and music. You can watch iPlayer with less interruption and HD video with less buffering. You'll also need Fibre 1 to be able to get our TV Entertainment package, which includes 20 premium entertainment channels.\nSee what broadband packages are available where you live by using our availability checker.\nNew customer? Order Fibre today >\nExisting customer? Upgrade to Fibre >","domain":"optical_engineering"}
{"url":"https://myhighpressureair.com/element-helix-ffp-30mm-6-24x50-apr-2d-moa/","date":"2023-06-08T22:49:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224655143.72/warc/CC-MAIN-20230608204017-20230608234017-00752.warc.gz","language_score":0.9156012535095215,"token_count":430,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__141622143","lang":"en","text":"Helix 6-24x50 SFP EHR-1C MOA\nElement OpticsOut of stock\nWe can ship to virtually any address in the United States and some US Territorries.\nThe Element Optics Helix 6-24x50 FFP MOA scope gives you the options you need at a surprisingly affordable price considering what you get. Built for fast shooting in intense situations, it gives you the cutting edge technology you expect from Element, including durable turrets, fully multicoated glass for a clear sight picture, and a reticle packed with useful features.\nThe APR MOA reticle was designed for all purpose shooting by Matt Dubber, and it gives you plenty of features intended for distance shooting and fast focusing. It's an FFP reticle (first focal plane), so you get accurate readings at any magnification, and it has 1/4, 1, 2, and 4 MOA dots and lines, and a Christmas tree holdover portion at the bottom to increase your long range accuracy, with plenty of markings for when you don't have time to dial an adjustment.\nThis scope gives you side focus without parallax from 10 yards to infinity, a removable magnification throw lever, and 3.7\" to 4\" of eye relief. The lenses give you a crisp picture under different weather and light conditions because they're waterproof, nitrogen purged, fogproof, and shockproof.\nThe turrets hold up to repeated adjustments better than competing scopes because they use stainless steel components on the inside, so they won't wear down after long use like those made with more fragile metals. You can adjust them without tools, they have a hard mechanical zero stop, are resettable, and have a windage range of 40 MOA and an elevation range of 65 MOA, and they adjust 15 MOA per turn, in 1/4 MOA clicks.\nIf you want a scope with a sophisticated reticle designed to take your shooting to the next level.\nElement Optics Helix 6-24x50 FFP, APR-2D MOA Reticle Features:","domain":"optical_engineering"}
{"url":"https://smith.chem.wisc.edu/publications?s=author&f%5Bag%5D=W&f%5Bauthor%5D=139&o=asc","date":"2022-01-19T18:28:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301475.82/warc/CC-MAIN-20220119155216-20220119185216-00290.warc.gz","language_score":0.7094047665596008,"token_count":107,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__208719634","lang":"en","text":"Export 2 results:[ Author] Title Type Year\nFilters: First Letter Of Last Name is W and Author is Westphall, Michael S. [Clear All Filters]\nHigh-speed automated DNA sequencing utilizing from-the-side laser excitation. Proceedings of SPIE - The International Society for Optical Engineering. 2386:45-54.. 1995.\nMass spectrometry of acoustically levitated droplets. Analytical Chemistry. 80:5847-5853.. 2008.","domain":"optical_engineering"}
{"url":"https://www.bansalstudio.com/product/canon-eos-1500d-dslr-camera/","date":"2024-04-25T07:43:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00781.warc.gz","language_score":0.8441694378852844,"token_count":151,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__40759660","lang":"en","text":"Buy Canon EOS 1500D Kit (EF S18-55 IS II) offline in Udaipur or order Online\nFor best price Call or whatsapp @ 9829789277\nAll camera users, even beginners, will be able to capture amazing images and movies with this DSLR camera, which is equipped with a 24.1megapixel APS-C-size CMOS sensor and an optical viewfinder for an authentic DSLR shooting experience. Capturing sharp images is easy thanks to the fast, accurate AF and the large grip that provides a firm, steady hold on the camera. Built-in Wi-Fi / NFC connectivity enables the seamless upload of photos and videos to social media.","domain":"optical_engineering"}
{"url":"https://www.astrodog.com.au/product/32mm-baader-german-engineered-premium-32mm-50-fov-plossl-eyepiece/","date":"2022-06-25T18:06:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103036077.8/warc/CC-MAIN-20220625160220-20220625190220-00452.warc.gz","language_score":0.8321056365966797,"token_count":843,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__169534429","lang":"en","text":"32mm Baader Plossl – An Premium Experience\nExceptional quality, wide-view eyepiece without surprises. The build quality of these eyepieces are second to none, and you will be impressed with the quality for such a low price.\nHT-MC-coated – Parfocal eyepieces with a very high transmission, very good contrast and thus a very clear field of view, free of distortions. The multi-coating eliminates almost all internal reflections. The eyepieces provide 50° apparent field (6/10/18mm Ortho), sharp field stops and excellent ergonomics for comfortable observing.\nClassic optical design of orthoscopic eyepieces\nThe lens assembly consists of a triplet-element and one plano-convex eye lens, so there are only four glass-air-surfaces. The interior has been blackened for a very good suppression of stray light. Of course, the hard anodised barrel has got a filter thread.\nLooking into the eyepieces, you’ll see the effect of the anti-relex-coating and the blackened lens edges. The coating is so good that it seems like there are no lenses at all! On our optical bench, we couldn’t find any disadvantages compared to so-called “planetary eyepieces” which cost five times more.\nThe eyepieces use the same glasses and the same optical design as the old orthoscopic Zeiss Jena eyepieces.\nThe 32mm-Plössl-eyepiece is the perfect eyepiece for a large field of view at telescopes with 1,25″-focuser; eyepieces with longer focal lengths don’t provide a larger field of view (but a smaller apparent field).\nFOCAL LENGTH 32 mm\nAPPARENT FIELD OF VIEW 50°\nEYE RELIEF (MM) 21 mm\nAR-COATING High transmission multi-coated (HT-MC)\nPARFOCAL EYEPIECES Yes\nBARREL SIZE (IN) 1¼”\nOPTICAL DESIGN Ploessl\nSPECIALITY Eyepiece projection: afocal\nFIELD STOP DIAMETER 26 mm\nNUMBER OF LENS ELEMENTS 4\nNUMBER OF GROUPS 2\nSLIP PROTECT SAFETY Classic Undercut\nEYEPIECE BODY ABOVE REFERENCE PLANE (MM) 54,8 mm\nLENGTH OF 1¼” BARREL (MM) 24 mm\nOUTER DIAMETER 34,8 mm\nDUSTCAPS 1¼” dustcap (31,8mm)\nEYECUPS winged eyecup (1¼”)\nOPTIONAL ACCESSORIES Q-Turret Eyepiece Revolver\n“Great eyepiece. Excellent optics, Nice clear view. Perfect for a finder and star hopping eyepiece.” Jeffery\n“The Baader 32mm has better contrast than the GSO equivalent. The field stop has a wide range of focus. If you want a wider field, you can thread out the field stop, and the Baader will have as wide a field as other Plössls. I left the field stop in place with mine, as it makes for more comfortable viewing.” – Peter\n“Lightweight,Quality Lenses,Compact,Strong Construction,Easy to Use” Steve\nAstro Has Lots of Other Astronomy Accessories Your Looking For – See Our Best Sellers Below\nWith Fast Shipping On Every Item, Discount Vouchers and 30 day returns, Why Not?\n|Dimensions||18 × 18 × 10 cm|\nOnly logged in customers who have purchased this product may leave a review.","domain":"optical_engineering"}
{"url":"https://www.rashtranews.com/optoma-launches-affordable-4k-laser-projector-tv-d2-series/","date":"2024-04-13T04:04:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816535.76/warc/CC-MAIN-20240413021024-20240413051024-00066.warc.gz","language_score":0.8882727026939392,"token_count":567,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__152314000","lang":"en","text":"Optoma Launches Affordable 4K Laser Projector TV D2 Series : Rashtra News\nExpanding its advanced yet affordable projector range, Optoma world’s No.1 DLP projector brand and a leading designer of projection products unveiled the long lasting 4K UHD ultra short throw laser home projector D2 series in the India market.\nOptoma Launches Affordable 4K Laser Projector TV D2 Series\nThe newly launched D2 range is equipped with wide angle lens which provide clear and bright image to enhance visual experience. D2, an affordable 4K Laser TV comes with an ultra-shot throw feature to create 85 inch to 120-inch screen size from a distance of few inches. It offers easy set-up, high brightness, enhanced gaming, and fine home cinema experience. Its bright 3000lm and stable brightness output, 1,800,000:1 frame by frame dynamic contrast, HDR 10/HLG compatibility provide unmatchable viewing experience. D2 series come in White and Black colour form factor.Putting more light on D2 series, Mr. Vijay Sharma, Country Head, Optoma India said, “We are committed to India market and therefore we came up with advanced tech based D2 series which will enhance the home cinema experience to the next level. Our new series with 4K UHD ultra-short throw is embedded with smart features like easy set-up, high brightness and stable brightness output at affordable cost to target the mid-level customers in the metros and tier 2 cities as well.”\nThe Laser Technology helps in Increased efficiency to maintain consistent brightness, superior color performance, Instant on/off and an extraordinary life span of up to 30,000 hours (Eco mode). As a part of home entertainment range these projectors sync with 3D display in all forms. Also, the new projectors come with enhanced audio return channel to provide in depth audio details which enhances the home cinema experience.\nMr. Gordan Wu, APAC Head, Optoma Corporation said, “This 4K UHD long lasting ultra-shot throw home projector is apt for home cinema. With its smart feature it also provides ultimate gaming experience too. With its advanced tech based features this projector series is also easy to install with quality image.”\nAdditional specifications across all three projectors include\nResolution: 4K UHD (3,840 * 2,160)\nBrightness: 3000 Lumens\nImage size (inch): 2.16m ~ 3.05m (85″ ~ 120″) diagonal\nDisplay Colors: 1.07 billion\nSpeaker: 2* 10W\nThrow ratio: 0.25:1\nZoom type: Fixed\nLight Source Life: 30,000 (Eco mode)","domain":"optical_engineering"}
{"url":"https://gadgetsavvyhub.com/sigma-100-400mm-f-5-6-3-for-fujifilm-x-review-greatness-for-half-the-price/","date":"2024-02-21T06:07:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473370.18/warc/CC-MAIN-20240221034447-20240221064447-00571.warc.gz","language_score":0.9380912184715271,"token_count":1503,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__194277805","lang":"en","text":"We’ve seen the 100-400mm f/5-6.3 DG DN OS Contemporary before because it’s the current full-frame super-telephoto option from Sigma for mirrorless cameras. What we haven’t seen before is a full-frame Sigma that has been specifically adapted for the APS-C-sized Fujifilm lens mount — until now.\nAt first glance, you might be thinking that a full-frame lens is going to be excessively large and bulky in front of an APS-C-sized sensor. What about all that extra light designed to cover a much larger sensor being wasted on Fujifilm bodies? Is the Sigma 100-400mm f/5-6.3 DG DN OS a feasible option or a ridiculous mash-up?\nSigma 100-400mm f/5-6.3 DG DN OS Contemporary: Handling\nFujifilm already makes a 100-400mm with a slightly faster f/4.5-5.6 maximum aperture. It’s a fairly heavy lens despite being made specifically for APS-C at 48.5 ounces (1,375 grams). It’s also fairly bulky in the hand and has a similar intention to the Sigma, with its built-in optical stabilization and identical focal range.\nDespite the Sigma 100-400mm being designed for full-frame, it actually comes in significantly lighter at just under 39 ounces (1,100 grams). Although a similar size, I found the Sigma to be well-balanced and agile in hand.\nPhysically, the Sigma 100-400mm has a smooth zoom ring that can be locked to prevent barrel creep. It’s a weather-sealed design and like all Sigma Contemporary lenses, feels well-built and solid. There is the usual telephoto lens setup with an AF selector switch, focus limiter, customizable control button, and image stabilizer controls. The hood clicks on with a positive locking action and there is a lens collar available to balance the weight on a tripod. However, Sigma does not provide the lens collar out of the box and you’re going to want it, so factor in that extra cost.\nSigma 100-400mm f/5-6.3 DG DN OS Contemporary: In The Field\nWith the 100-400mm, the first thing I tried was close-up photography. It is a challenging affair with the large working distance of roughly 1.5 meters away, but you definitely won’t spook the insects. I got some great shots of butterflies and insects with the 1:4 macro reproduction and the optical stabilization helped my success rate.\nWhen shooting toward the sun or bright light sources I found the flare resistance of this lens to be pretty average. Some loss of contrast was present and the lens displays some obtrusive green ghosting when stopped down. But, generally speaking, long telephotos don’t often involve the sun or light sources directly in the frame and the supplied lens hood does a good job of cutting out flare in most situations.\nWhen it comes to bokeh and the rendering of out-of-focus areas I found the Sigma 100-400mm to have some very minor cat’s eye effect shooting wide open. Stopped down, the highlights are nice and round although they do exhibit significant soap-bubble effects and onion rings, too. Fortunately, the look of out-of-focus backgrounds was quite nice. You are going to see a lot of soft backgrounds when shooting wildlife and it’s important that the lens renders them to your liking. The Sigma backgrounds don’t look overly harsh and transitions from sharp areas look pleasing.\nSigma 100-400mm f/5-6.3 DG DN OS Contemporary: Sharpness is Key\nThe first thing I want to get across is that detail-robbing diffraction is always present with any camera system and that the more you stop your lens down the softer things get. Of course, stopping down does improve the appearance of some optical aberrations and brings more of your image into focus. Eventually, you will find that the softness from diffraction outweighs any benefits to stopping down, and thus — in incredibly simplified terms — we don’t want to go much past f/8 or f/11 if we don’t have to. Long story short, you don’t have much aperture range to play with on a slower lens like this.\nAt 100mm I found the Sigma to be very sharp shooting at f/5 both at the center and corner of the image. Stopping down to f/8 gave a noticeable improvement in both contrast and detail. At 400mm it was an identical story, with f/6.3 giving great results and f/8 improving things even further. I’d happily shoot wide-open throughout the focal range but stopping down does help a little. If you absolutely need the depth-of-field you can stop down further but you’ll be losing some overall detail pretty quickly.\nRegardless, I was impressed with how good the corners were on this lens because the APS-C Fujifilm sensor only uses the light from the more central “sweet spot” of the full-frame image circle projected into the camera. This certainly isn’t a bright lens though, and I often had to use a higher ISO than I would normally want to. I would factor in how much low-light shooting you’ll do, and how willing you are to compromise some image quality in those situations compared to a faster, but more expensive lens.\nSigma 100-400mm f/5-6.3 DG DN OS Contemporary: A Full-Frame Compromise\nAt first, I assumed that a full-frame lens on a smaller Fujifilm body would be a poor stop-gap measure for Sigma until it could make a novel lens purpose-built for the X-Mount. In truth, the alternatives are sparse which makes it a lot easier to recommend. The Fujifilm XF 100-400mm is a great lens but it’s larger, heavier, and only marginally brighter. It’s also dramatically more expensive.\nThe Sigma 100-400mm is not a bright lens by any stretch and there is some compromise there, yet it provides some excellent sharpness and good overall optical performance without breaking the bank, or the arms. It may be a stop-gap after all but it’s a worthy one for the prospective wildlife or action shooter on a budget since it costs just $949.\nAre There Alternatives?\nThe aforementioned Fujifilm XF 100-400mm f/4.5-5.6 is a solid choice, with a hefty $1,899 price. Its linear autofocus motors are definitely faster and might be worth it in demanding situations.\nYou could also go with the even more affordable Fujifilm XF 75-300mm f/4-5.6 but you’ll give up significant reach at the long end.\nShould You Buy It?\nYes. The Fujifilm X system lacks a range of telephoto zooms. Any additional options are welcome and the Sigma delivers good images.","domain":"optical_engineering"}
{"url":"http://bmwmcindy.org/blog/2013/03/08/","date":"2018-02-19T02:04:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812306.16/warc/CC-MAIN-20180219012716-20180219032716-00363.warc.gz","language_score":0.9674896001815796,"token_count":360,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__228393594","lang":"en","text":"I just received this from Mike Williams, who would have ever thunk it\nWhile helmets aren’t required in many states to ride a motorcycle on the streets, a huge number of riders do choose to wear a helmet to help protect them in the event of an accident. One of the complaints of wearing a helmet is that it limits some of your vision and makes it more difficult to see what’s going on behind you. A company called Reevu has a helmet that has the world’s first rear view imaging system built right in.\nThe helmet is called the RV MSX1 Motorcycle helmet and has a flip up front. The helmet will be ready for the 2013 riding season and has been tested and approved to DOT standard for the US and ECE 22.05 standards for European markets. The helmet has an integrated optical device that allows motorcyclists to view the road behind them through the helmet.\nAt first glance you might think that the helmet uses a camera system, but it doesn’t. The optical device that shows the rider what’s behind them uses a number of reflective surfaces that are coated onto a bullet proof material. The optical device bends light over the top of the wearer’s head allowing them to see what’s behind them using their peripheral vision.\nThe company already has a standard full face model planned (pictured) called the RV FSX1 that will launch later this year. The helmet offers motorcyclists a rearview mirror system. The optic system can be moved to adjust the rearview to suit the rider’s needs. The reflective polycarbonate plate used in rearview system also act as a crumple zone in the event of an accident helping to protect the rider even further.","domain":"optical_engineering"}
{"url":"https://bereskinparr.com/news-insights/news/october-is-hispanic-heritage-month-in-ontario-media/","date":"2024-04-23T21:30:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818740.13/warc/CC-MAIN-20240423192952-20240423222952-00849.warc.gz","language_score":0.9349358081817627,"token_count":159,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__126324289","lang":"en","text":"October is Hispanic Heritage month in Ontario Media!\nJoin us in acknowledging famous Hispanic inventor Ellen Ochoa, the world’s first female Hispanic astronaut! Ms. Ochoa invented an optical analysis system for information processing, in particular for detecting defects in a repeating pattern. She is also a co-inventor on three patents for an optical inspection system, an optical object recognition method and a method for noise removal in images.\nShe led a research group at NASA focused on automated space exploration, and as Chief of the Intelligent Systems Technology Branch at NASA, she supervised several scientists and engineers in the research and development of computational systems for aerospace missions. She is the current Director of the Johnson Space Center, and in 1993 went on a nine-day space mission aboard the shuttle Discovery.","domain":"optical_engineering"}
{"url":"http://www.worldnewsmagzine.com/7037/militarygrade-eyewear-why-wiley-x-safety-glasses-are-top-of-the-line.html","date":"2024-04-15T09:28:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00347.warc.gz","language_score":0.9285596013069153,"token_count":1053,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__93389466","lang":"en","text":"04/05/2023- Middlesex, NJ: Whether you’re in the military yourself and looking for a pair of military sunglasses, or you simply want to get that enhanced level of ballistic level of protection, Wiley X safety glasses can, at times, come with those military specifications. Wiley X military glasses are designed to be built for the harshest and most hazardous environments out there in the world. That means that Wiley X military sunglasses provide enhanced protection and focus on continuous comfort and the clearest vision possible at all times.\nThat’s why any Wiley X military options carried by RX-Safety come with not just ANSI Z87 ratings but also evolving military safety standards that go beyond just the frames and lenses but the overall quality of the whole package. So let’s look at these Wiley X safety sunglasses options.\nWiley X Saber\nThe first pair of military glasses we’ll take a look at is the Wiley X Saber. These are extremely lightweight, semi-rimless in design, and come with an adjustable nose piece and a foam insert for maximum comfort. The Wiley X Saber is also extremely versatile since it comes with interchangeable lenses on the same frame.\nThese T-Shell™ lenses also come with 100% UVA / UVB protection and additional coatings against scratches. They are also quite tough, made from Polycarbonate material known as their Shatterproof Selenite™. The Wiley X Saber quickly becomes Wiley x prescription safety glasses with the possibility of getting prescription inserts.\nThey also meet all standards for ANSI Z87.1 as well as MIL-PRF-32432(GL) ballistic ratings. The frame itself is matte black with pale yellow, clear, light rust, and smoke gray as your lens color options.\nWiley X Romer 3\nThese have the Wrapback™ feature, which helps to support the peripheral vision that’s also protected. You’ll also see crisper colors with its Light transmission being at 89% when using the non-clear lens color options.\nAgain, versatility is important with Wiley X Military glasses. You can switch out the lenses here that also come with the T-Shell™ anti-scratch coating and 100% UVA / UVB protection. This makes them an excellent option for various indoor and outdoor lighting conditions, and they can easily adapt to the situation. These are ready to obtain a Wiley X prescription safety glass and come with ANSI Z87.1-2010 and MIL-PRF-32432 ratings. The Wiley X Romer 3 comes in a matte black frame color. Consider these also if you use night vision goggles.\nWiley X Spear\nThe final option we’ll look at is the Wiley X Spear, which are goggles, not Wiley X Safety glasses. However, they still meet MIL-PRF-32432 ballistic ratings as well as ANSI Z87.1 high velocity and high mass impact ratings.\nThe Wiley X Spear also keeps the theme of flexibility with interchangeable lenses that also come with the T-Shell ™ scratch-resistant coating. These lenses also come with Foil™ coating to prevent fog build-up. You can get these in smoke gray, clear, or light rust, with the ability to also get prescription inserts.\nThe goggles come in a tan color and also have an adjustable strap. These come compatible with night vision equipment as well.\nWhere to get the best Wiley X safety glasses with military standards\nThe best Wiley X safety glasses with military standards are available here at RX Safety. Make sure to check our collection of Wiley X safety sunglasses to find exactly what you want. If you have any questions, talk to our experts through our chat, e-mail us at email@example.com, or give us a call at +1 888 245 6638.\nRx Safety is an American manufacturer of affordable prescription safety glasses and performance eyewear. A family-owned and operated business, with a state-of-the-art digital ophthalmic lab and the online store providing affordable, top-of-the-line prescription safety glasses, sunglasses, and performance eyewear on the market. All the safety glasses always meet or exceed the ANSI Z87+ standards for high impact, to be safe and secure while working in any kind of hazardous environment. Besides standard safety glasses, we offer a broad selection of prescription shooting and tactical glasses, prescription youth sports glasses, fishing, and motorcycle glasses designed and tested to meet our high standards. As an authorized distributor of Wiley X, Bobster, ESS, and BodySpecs, Rx-Safety.com offers a full line of prescription safety glasses straight from the manufacturer at wholesale prices.\nLike us: https://www.facebook.com/RxSafety/\nFollow us: https://www.instagram.com/rx_safety/\nSubscribe us: https://www.youtube.com/user/RXSafetyVideos/\nRetweet us: https://twitter.com/RXSafetyEyewear/","domain":"optical_engineering"}
{"url":"https://www.ricoh.com.au/products/office-solutions/projectors/high-end-projector/pj-wul6280","date":"2020-07-14T21:47:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657151761.87/warc/CC-MAIN-20200714212401-20200715002401-00016.warc.gz","language_score":0.8699318766593933,"token_count":380,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__235389444","lang":"en","text":"With a choice of five lenses, you can adjust this projector to suit your audience size.\nMake a big impact at your next event or presentation, with a projector that delivers high resolution detail\nShowcase your visuals and presentations for longer. The PJ WUL6280’s laser technology provides extended use and quieter performance.\n- Fill the room\nThe PJ WUL6280 is suitable for use with large audiences of 100 or more\n- Share the details in high definition\nIndustry-leading brightness puts everyone in the picture – even when it's an image up to 300 diagonal inches\n- A presentation projector for any surface\nNo need to worry about coloured walls or even blackboards with colour correction capabilities, and keystone correction to fix image distortion\n- Easy to manage\nConnect the PJ WUL6280 projector to your network to check for issues, confirm the time remaining on the lamp and even switch it off remotely\nLaser sharp delivery\nInstead of mercury lamps, this projector uses laser technology which lasts 6 times longer, or 20,000 hours. This means less maintenance, reduced mercury light globes in landfill, quieter noise emission and less cost. Quality resolution boosts visual impact. Project onto walls, ceilings or floors with a choice of 5 lenses. Connect it easily to your choice of devices, with HDMI, USB and HDBaseT interface ports.\nRequest a quote and empower your digital workplace with us\nWhatever your business needs there’s a Ricoh specialist ready to help create the ideal solution to improve your work life. Hit the ‘Request a quote’ button, complete the form with your details and we’ll contact you within 24 hours to discuss your requirements.\n- 1,920 x 1,200 pixels (WUXGA)\n- 20,000-hour laser life\n- Five lens choices\n- 360-degree projection","domain":"optical_engineering"}
{"url":"https://harnisch.com/win/customized-laser-modules-for-wood-processing-ligna-2023/","date":"2024-04-19T11:45:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00669.warc.gz","language_score":0.9214829802513123,"token_count":232,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__96147596","lang":"en","text":"At LIGNA 2023, LASER COMPONENTS will be presenting laser modules that are specifically suited for use in wood processing. The company will be focusing on lasers for machine vision and positioning and marking tasks.\nPositioning lasers ensure precise cutting and drilling in the wood industry. The dust-proof housings of the ILM12F and HD FLEXPOINT® series from LASER COMPONENTS offer a crucial advantage, especially in the demanding working environment of this industry. The green (520 nm) and red (635 nm) laser light options are eye safe according to laser classes 1 and 2. The ILM12F module offers a special advantage with its integrated M12 thread for fast and secure mounting.\nThe FLEXPOINT® MV series was developed by LASER COMPONENTS for use in machine vision. The product features of the modules are designed to provide reliable results even in real-time high-resolution image processing. This allows significant increases in efficiency in sawmills and in the inspection of finished furniture parts. MV modules in various sizes and performance classes will be presented at LIGNA.","domain":"optical_engineering"}
{"url":"http://www.zeebiz.com/technology/news-oppo-unveils-worlds-first-periscope-style-5x-dual-camera-zoom-12981","date":"2017-08-19T22:21:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886105927.27/warc/CC-MAIN-20170819220657-20170820000657-00302.warc.gz","language_score":0.922589123249054,"token_count":525,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__162458581","lang":"en","text":"OPPO unveils world's first periscope style '5x Dual Camera Zoom'\nOPPO has unveiled '5x Dual Camera Zoom' – the world's first periscope-style dual-camera technology for smartphones at Mobile World Congress (MWC) 2017.\nSky Li, VP, OPPO, MD of International Mobile Business & President of OPPO India, said, “The ‘5x Dual Camera Zoom’ has opened up yet another realm of possibility in terms of smartphone photography, and is a reflection of our dedication to delivering on what our customers want and need - to take beautiful and clear pictures”.\nThe company has been working on this dual-camera technology for almost a year now, and has filed currently more than 50 patents for this technology.\nIdea for this 5x Dual Camera Zoom was inspired from periscope used on submarines, it said.\nOPPO said, \"5x Dual Camera Zoom is the Optical Image Stabilisation (OIS) solution. Different from other manufacturers who use optical image stabilization on the wide-angle lens, the company took a new approach and applied OIS directly to the telephoto lens.\"\nThis technology will offer 5x lossless zoom capability on a smartphone, which will set the bar high compared to the 2x zoom functions available in the market presently.\n5x dual camera module is only 5.7mm thick, which is even 10% thinner than a typical 2x optical zoom lens in a smartphone. Thus, it will help in keeping the smartphone thin.\nIt utilises wide-angle and telephoto lenses, and the housing for the telephoto lens uses an innovative periscope-style structure. By shifting the angle of the telephoto lens by 90 degrees, the lens will have the space it needs for a deep zoom.\nWhile there is also a 3x optical zoom featured in this technology, matched with a proprietary image fusion technology for digital zoom, giving users the industry’s first-ever lossless 5x dual camera zoom.\nMeanwhile, OIS solution can improve the performance of previous generations by 40%, and the prism mechanism dynamically adjusts its angle at precise increments of 0.0025o. This technology ensures that images are clear and stable even at full 5x zoom.\nSky Li added, “The dual cameras with wide-angled and telephoto lens, together with the periscope-style construction, our image fusion technology and the Optical Image Stabilisation, edges mobile photography even closer to what digital cameras are capable of doing.\"","domain":"optical_engineering"}
{"url":"http://thisweeksdiscoveries.blogspot.com/2016/06/seeing-through-chips.html","date":"2019-04-21T20:19:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578532882.36/warc/CC-MAIN-20190421195929-20190421221929-00387.warc.gz","language_score":0.9497755765914917,"token_count":667,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__125496685","lang":"en","text":"Rayko Ivanov Stantchev and his team have found a way to look inside computer chips. With terahertz radiation, they are able to look through materials that are otherwise opaque.\nLight, but not quite\nTerahertz radiation is part of the electromagnetic spectrum. This spectrum also contains radio waves, ultraviolet rays and also visible light. All types of radiation are sorted by wavelength on the spectrum. Terahertz’s wavelength comes right between microwaves and infrared, making its wavelength slightly longer than that of light. This is excellent for looking through materials, because the longer the wave, the bigger the objects the wave can ‘see through’. That’s why your computer has no problem with seeing the WI-FI (that are in fact radio waves), that comes from your router, but you can’t see the router, if you’re not sitting next to it. Radio waves have a way longer wavelength, and thus they can ‘bend’ around your furniture, stairs and cat. While the visible light, that your eyes see, has a shorter wavelength and can’t bend around your cat. But in the ability of waves to bend around things also lays the problem. You don’t want the waves to bend around the thing that you actually want to see. Terahertz waves have just the right wavelength\n|The electromagnetic spectrum, terahertz radiation comes between microwaves and infrared|\nLooking straight through\nWith terahertz radiation, we can look through computer chips, while still being able to see the structures inside it. To be able to look inside the chip, Rayko Ivanov Stantchev and his team beamed patterns of radiation onto a slice of silicon, the material most computer chips are made out of, that was only a hundredth of a centimetre thick. Because of this pattern, the silicon become transparent for the terahertz radiation. But the structures inside the chip don’t become transparent, enabling the scientists to see them. With this technique, they were able to find malfunctioning parts in the chip as small as eight micrometres across. That’s about half as thick as the finest human hair.\n|Image made with terahertz radiation,|\nyou can clearly see the structure\nComputers and biology\nThe researchers consider using terahertz radiation a technique with much potential. For now, the possibility to see through silicon is limited by the thickness of the material, and the material can’t be really thick yet. Scientist predict that with improving the techniques, much thicker materials could be used. This can be really helpful with checking computer chips for malfunctioning parts, since the chips can just be ‘scanned’. But terahertz radiation has another interesting use. It could also be used in biology to scan tissues, because water, which is abundant in all living organisms, absorbs the terahertz radiation, making it easy to detect were there’s a lot of water. Because the radiation doesn’t bounce off of those spots. All in all a very promising technique that will benefit both computer sciences and biology.\nClick here to read more about physics.","domain":"optical_engineering"}
{"url":"https://tuffsta.top/top-9-manual-focus-webcam-uk-customers-most-loved-electronics/","date":"2024-03-02T20:13:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475897.53/warc/CC-MAIN-20240302184020-20240302214020-00189.warc.gz","language_score":0.8566581606864929,"token_count":2273,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__141303045","lang":"en","text":"papalook#ad - Stable manual focus computer camera: unique manual focus design, independent control of the sharpness, captures HD video at 90 wide-angle, giving you an unparalleled perspective for a wide variety of conditions.5-layer glass hd lens & advanced CMOS image sensor delivers sharp and crystal clear video at a fluid 30 fps.\nThe usb 2. 0 plug and play gets you set up and installed on your laptop, Excellent Compatibility: No additional adapters, Android V5. 0 and higher, twitch; supports almost all operating systems, Zoom, such as Skype, or TV within seconds. Built-in dynamic noise reduction microphone: with advanced echo cancellation and an intelligent noise reduction algorithm, makes the sound clearer and more natural even in a noisy environment.\nThe pickup distance can reach up to 4 ft, and the speeches of all the participants at the venue can be picked up clearly.\n1080p fhd image quality: shows you the best with papalook webcam. Easy plug and play, including windows xp/7/ 8/10/11and above, mac os 106 and above, or drivers required. Auto low-light correction: papalook pa452 pro computer camera automatically adjusts white balance, and backlight compensation based on ambient brightness for accurate portrait exposure and incredible high-definition images even in poor lighting conditions, light sensitivity, keeping you bright always. More stable focus than autofocus if you do not need to change position frequently.\nELP#ad - Hd high frame rate webcam without mic: this elp 1080p webcam operates in hd 1080p video at 30-fps/480p video at 100 fps if in good light condition, delivers crystal clear images and recording more details of the object moving process. 1920 h x 1080 v pixel mjpeg 30fps yuy2 6fps;1280 h x 720 v pixel mjpeg 60fps yuy2 9fps;640 h x 480 V Pixeln MJPEG 100 fps YUY2 30 fps.\nThe 5-50mm variable focus hd lens is a optical camera lens that can change the focal length within a certain range to obtain different wide and narrow angles of view, images of different sizes and different scene ranges so it is very conducive to the picture composition. Usbfhd01m-sfv5-50 full hd 1080p usb webcam: the cmos ov2710 sensor of hd webcam captures sharp images to provide consistent high-definition quality.\n5-50mm variable zoom lens web camera:2mp zoom usb camera comes with 5 -50mm variable focus manual lens lens, giving the clarity image and detail at different focal lengths. Plug and play & widely compatibility: usb driver and automatic installation, just plug and play with a usb 2.\n0 cable, system reads the hardware drive automatically no additional drivers or download drivers required. Easy to use and wide range applicable scenes: software or app-yawcam/ispy /amcap/motioneyeos/obs/contacam/quickTime/Tiktok/Zoom/Facetime/WebEx/Weber, etc;Great for webinars, Golf recording, Robot machine project, security monitoring, live streaming, webcast, video conferencing, ATM machine, etc. Good for project industrial machine, web video conference, online class, company meeting, game chat etc. Automatic white balance help get accurate color reproduction.\nHopcd#ad - 3. The camera can be rotated up and down 60 degrees, the product rotates the head 360 degrees, you can adjust the angle according to your needs. Support windows 2000 / win10 / xp / win8 / win7 / Vista 32bit.\nMultifunctional, used for msn/yahoo/skype, the camera supports various video conferencing software, namely netmeeting, etc.2. The camera uses an optical lens with high precision, with 300, 000 pixels and true color images to ensure smooth chat and video without any blur or distortion.\n1. This product has a built-in microphone and uses an external acoustic digital microphone, which can receive sound within 10 meters, so you don't need to be too close to your camera. 4. The camera is compatible with USB2. 0, supports automatic white balance, automatic color correction, but requires manual focus.\nSvpro#ad - Compatiable with Windows, Mac and Android systems. Deliver great picture performance while catching up moving objects. 2. 8-12mm varifocal lens with ir filter: fhd 1080p usb webcam with zoom 2. 8-12mm cs mount lens, manual focus camera is suitable for more applications.\nHigh frame rate 100pfs: high frame usb camera 1080p produce clear and smooth pictures at 100pfs 480P, 60fps 720P, 30fps 1080P. High speed USB 2. 0 webcam output format support MJPEG/YUY2. Support OTG protocal. 5x optical zoom adjustable distance for focusing in close or make long distance shots.\n2mp webcam with zoom focus can be widely use for security monitoring, Linux, live streaming, online teaching, video conference ect. Plug and play uvc camera: drive-free uvc compliant camera is real plug and play, easy to set up and use.\nUsb camera with iR filter@650nm for true color day images/videos. Fhd 1080p high definition camera: hd usb camera adopted 1/2. 7\" cmos 2710 sensor with max resolution 1920x1080 to deliver sharp and clear images effectively. This tiny usb web camera come with 3 meters long usb cable can be widely use for laptop, desktop, PC computer and industrial embedded projects. Support 1/4 \" tripod mountmini sized usb camera with aluminum case support for 1/4\" tripod mount or embedded installation.\nj5create#ad - Easy to use and wild compatibility one plug to activate and then start your streaming! no additional driver is required for installation, and the USB webcam can be operated in just a few seconds. Auto af / manual mf focus mode switchingjvu250 auto & manual focus switch HD webcam with high-fidelity microphone is equipped with the advanced technology of Auto Focus.\nThe webcam for laptop can run on Mac OS 1010 or higher, twitch, 11 or higher, windows 7, 10, skype, and Chrome OS, 8, and is highly compatible with various video tools such as Zoom, Facebook, YouTube and more. Full hd 1080p webcam with auto-low light correction high definition 1080p image sensor with wide angle lens, whether a video call at conference or streaming at home, up to 30fps frame rate provide a crystal clear 1080P high definition image, you'll always look great in the video image.\nAnd easily flip the live image by long pressing the red button for 3 seconds.\nDesk-view mode two in one design, functions as a document camera and webcam. Two-in-one design, functions as a document camera and webcam, what you need to do is pulled out the camera housing horizontally and rotated 90° to face downwards. So you can focus on anything that moves into the frame automatically or manually focus on objects during the presentation. Patented 2 in 1 bracketjvu250 is equipped with 2-in-1 mounting clip, it can be transformed into an upright tripod to make your shooting angles more flexible by placed on any monitor/laptop/tripod/or any flat surface.\nSvpro#ad - 3 meters long usb cable for wide use. Super small outline and thin profile for embedded applications. High speed USB 2. 0 interface for high resolution PC camera interface. Picture format support YUY2 and MJPEG.\n30fps@1280x720/640x480 mjpeg, 30fps@VGA resolution YUY2. High speed USB 2. 0 otg supported. Cmos hd camera 720phigh pixel technology for high quality sharp image & accurate color reproduction and low power consumption.\nCamera with uvccamera with uvc for use in linux, windows xp, win ce, mac, SP2 or android systems. Support tripod mountthis mini camera deliver 30fps in 1280x720 resolution, 1/4\" tripod screw hole on top/bottom of the camera ideal for portable equipment.\n10x optical zoomcs mount usb camera 720p with 5-50mm varifocal lens, manual zoom focus can focus in close or make long distance shots. Plug & play camera with ov9712 sensor easy set up camera without install any extra drivers, real plug and play. Aec and aEB support.\nSvpro#ad - 5-50mm zoom lens camera: cs mount 5mm-50mm telephoto lens, 10X optical zoom adjustable for all kinds of distance, ideal for capturing various close-ups at a long distance. Wide compatibility: support os windows, vlc and more, youtube, android, MacOS, no additional drivers required, linux, OBS and other professional program including Raspberry Pi, facetime, OpenCV, ready to use with Zoom, Skype, industrial camera and machine vision.\n2\" imx179 cmos sony sensor, 8MP hd webcam can capture excellent dynamic range and more details. High definition webcam 8mp: hd 8mp pc external camera with IR cut provide super clear and smooth image up to 3840x2448 resolution at 15fps. Plug and play usb camera: this usb webcam comes with 3 meters USB2. 0 type a cable for easy plug and play setup for laptops, desktop and PC computers, Raspberry Pi with various video programs.\naplic#ad - Equipped with a front microphone. The person you are talking to will be able to see you on her/his screen particularly clear and free of image noise, which may otherwise occur in dark areas of webcams. Plug and play: insert the usb plug into a free port on your pc, and aplic webcam is recognised by Windows.\nAs well as ideal for teachers and students of online classes and for the home office. Aplic webcam always shows you in the right light with your friends. With the four auxiliary lights on the front side of the camera, your face is gently lighted.\nThe high-quality lens and LED lights play an important role in providing this. Compatible operating systems: Windows 7 - 11 | Mac OS 106 and newer. Product information: 1080p @ 25 hz | sharpness range from 50 cm to infinity| viewing angle horizontal: 48°, vertical: 37° | 5P lens | vertical movable camera head | manual focus by focus ring positioned next to the lens | automatic white balance | Low-light correction | ¼ inch tripod socket| 165 cm long USB cable | Plug&Play.\nIdeal for live streams, video conferences, webinars, chats, games, distance learning and private meeting in times of social distancing. The webcam is ready to use, as soon as you positioned it correctly. 304575.","domain":"optical_engineering"}
{"url":"https://www.flightlineweekly.com/post/trakka-s-multispectral-imaging-partnership-with-diamond-aircraft","date":"2024-04-15T02:19:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816939.51/warc/CC-MAIN-20240415014252-20240415044252-00758.warc.gz","language_score":0.913379430770874,"token_count":791,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__32217220","lang":"en","text":"Diamond Aircraft and Trakka Systems, a pioneer in advanced multispectral imaging solutions, recently collaborated on a successful demonstration of Trakka's new long-range TC-375 EO/IR imager integrated into a Diamond DA62 MPP aircraft. The week-long mission yielded exceptional results, showcasing the system's capabilities in Intelligence, Surveillance, Reconnaissance (ISR) and Search and Rescue (SAR) applications.\nThis collaboration builds upon a seven-year partnership between Diamond Aircraft and Trakka. Diamond Aircraft is renowned for its commitment to safety, performance, and efficiency and has served as both an integrator and an OEM for Trakka's advanced imaging systems. This successful demonstration further strengthens their collaborative efforts to push the boundaries of aerial technology.\nThe TC-375 EO/IR imager is a state-of-the-art multispectral imaging system that provides exceptional image clarity and situational awareness in diverse environments. This long-range and gyro-stabilized system features full HD (1080p) resolution for both integrated EO and IR sensors, enabling operators to obtain clear and highly detailed imagery in daylight, low light, complete darkness, and even in degraded atmospheric conditions such as fog, haze, and smoke.\nThe system features long-range optics that offer uninterrupted and continuous zoom, further improved by the next-generation image processing engine. This powerful combination provides two key advantages to users: maximum stand-off range and the ability to significantly enhance imagery. Additionally, users can blend the EO and IR channels to reveal hidden details at any distance.\n\"The mission tests with Diamond Aircraft were highly successful,\" said Adam Boniecki, European Sales Manager at Trakka Systems. \"The TC-375 performed exceptionally well, delivering clear and actionable imagery for ISR and SAR operations. The TC-375's exceptional performance and ITAR-free single LRU design make it an ideal choice for the DA62 MPP platform. We are excited to continue collaborating with Diamond Aircraft and explore further collaboration in the future.\"\nMarkus Fischer, Director of the Special Mission Division of Diamond Aircraft Austria, added, \"Aside from our long-term relationship, Diamond's operators were impressed by the TC-375's capabilities, including the longest continuous IR zoom and easy upgrade potential for existing Trakka customers. The seamless integration, indicative of simple operation and efficient maintenance, convinced us that the TC-375 positions us as a significant player in the market.\"\nThe successful demonstration of Trakka's imaging solutions on Diamond Aircraft's versatile and reliable TC-375 aircraft highlights their synergy.\nThe DA62 MPP is the latest variant of Diamond Aircraft’s successful Special Mission Aircraft portfolio. The all-carbon-fibre, twin-engine aircraft has a state-of-the-art glass cockpit and a fully integrated autopilot. It is powered by two turbocharged jet-fuel engines with superb fuel efficiency. The carbon fibre material provides unlimited airframe life and is not subject to corrosion, even when operated in saline and humid environments. Fuel efficiency and the unlimited airframe life combine for extremely low direct operating costs, making the DA62 MPP the most cost-efficient Special Mission Aircraft.\nLike no other special mission aircraft supplier, Diamond Aircraft has taken its special mission concept into a 360° turnkey solution: one single point of contact. The special mission turnkey solutions comprise a cost-efficient fixed-wing remote sensing Diamond Aircraft platform, airborne sensors, data links, ground stations, global support, spare parts, tooling, transport, and the corresponding pilot, operator and maintenance training.\nTrakka Systems is a global leader in designing, developing, and manufacturing critical vision technology solutions for various applications. With a solid commitment to innovation and excellence, Trakka Systems delivers advanced imaging and tracking solutions that empower organizations to achieve their missions confidently and successfully.","domain":"optical_engineering"}
{"url":"http://www.bitsofscience.org/tag/solar-power/","date":"2019-07-15T17:53:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195523840.34/warc/CC-MAIN-20190715175205-20190715200248-00037.warc.gz","language_score":0.9351601600646973,"token_count":613,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__167916413","lang":"en","text":"Scanning electron microscope image of initial prototype of light trapping 3D photovoltaic structures on a thin silicon wafer.\nSolar3D, Inc., the developer of a breakthrough 3-dimensional solar cell technology to maximize the conversion of sunlight into electricity, today announced the successful fabrication and operation of a working 3-dimensional silicon solar cell that produces at least 250% of the power of a basic silicon solar cell.\nDr. Changwan Son, Solar3D’s Director of Technology, commented, “When measured relative to a conventional solar cell design, our working prototype produces electricity beyond our previous expectations. First, we fabricated our working prototype. Then we created a simple cell based on the conventional design, using the same fabrication environment, to serve as a control sample. By measuring the side-by-side power output of both cells, we were able to determine the relative performance under a number of conditions, ranging from bright sunlight to lower, diffuse light. In each test, our 3D Solar Cell consistently outperformed the control cell and produced at least 2½ times the amount of electricity under the same conditions.”\nAbout 40 percent of the solar energy reaching Earth’s surface lies in the near-infrared region of the spectrum — energy that conventional silicon-based solar cells are unable to harness. But a new kind of all-carbon solar cell developed by MIT researchers could tap into that unused energy, opening up the possibility of combination solar cells — incorporating both traditional silicon-based cells and the new all-carbon cells — that could make use of almost the entire range of sunlight’s energy.\nSolar power gathered in space could be set to provide the renewable energy of the future thanks to innovative research being carried out by engineers at the University of Strathclyde, Glasgow.\nResearchers at the University have already tested equipment in space that would provide a platform for solar panels to collect the energy and allow it to be transferred back to earth through microwaves or lasers.\nHigh-efficiency Alta Devices solar cell\nTo produce the maximum amount of energy, solar cells are designed to absorb as much light from the Sun as possible. Now researchers from the University of California, Berkeley, have suggested – and demonstrated – a counterintuitive concept: solar cells should be designed to be more like LEDs, able to emit light as well as absorb it. The Berkeley team will present its findings at the Conference on Lasers and Electro Optics (CLEO: 2012), to be held May 6-11 in San Jose, Calif.\nCarbon in its wide range of shapes and variations seems to be the new material to work with no matter what sector you’re in. Especially the possibilities of carbon in its numerous nano forms seem limitless. While yesterday it was … Continue reading\nThe fact that the use of fossil fuels can be harmful for the environment is well known. Previous research even showed that coal-fired power plants are responsible for heavy metal emissions like mercury and we all know that the lead … Continue reading","domain":"optical_engineering"}
{"url":"https://www.digitalshopper.co.za/products/xiaomi-smart-camera-c300","date":"2024-04-16T11:22:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817081.52/warc/CC-MAIN-20240416093441-20240416123441-00527.warc.gz","language_score":0.878888726234436,"token_count":132,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__96680931","lang":"en","text":"Xiaomi Smart Camera C300\nEnjoy an improved visual experience with fully upgraded 2K ultra-clear HD technology, thanks to the Xiaomi Smart Camera C300. It features a 3-megapixel camera and uses ultra-clear HD technology to capture more detailed images. The C300 uses an F1.4 large aperture lens that lets significantly more light enter, capturing detailed images even in low-light conditions. Its upgraded 6P lens gives you a higher-quality display while effectively reducing light refraction for clearer, more detailed images. The Xiaomi C300 also features a high-sensitivity image sensor and displays colour video even under low-light conditions.","domain":"optical_engineering"}
{"url":"https://themorn.in/2023/09/06/chandrayaan-3-isro-releases-3d-images-of-lander-captured-by-rover/","date":"2023-09-26T22:55:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510225.44/warc/CC-MAIN-20230926211344-20230927001344-00784.warc.gz","language_score":0.9250084757804871,"token_count":259,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__65165734","lang":"en","text":"Chennai: The Indian Space Research Organisation (ISRO) on Tuesday evening released a 3D images of Vikram Lander carried onboard the third lunar mission Chandrayaan-3, by Pragyan Rover on the moon’s surface. The image was captured on August 30. In an update, ISRO posted “Chandrayaan-3 Mission: Anaglyph is a simple visualization of the object or terrain in three dimensions from stereo or multi-view images.”\nThe Anaglyph presented here is created using NavCam Stereo Images, which consist of both a left and right image captured onboard the Pragyan Rover, it said. In this 3-channel image, the left image is positioned in the red channel, while the right image is placed in the blue and green channels (creating cyan).\nThe difference in perspective between these two images results in the stereo effect, which gives the visual impression of three dimensions. Red & Cyan glasses are recommended for viewing in 3D. NavCam was developed by LEOS/ISRO. Data Processing is carried out by SAC/ISRO. At present both the lander and rover are in sleep mode. Awaiting their awakening around September 22, 2023. UNI","domain":"optical_engineering"}
{"url":"https://www.myportableworld.com/posts/nokia-announces-the-808-pure-view-hands-on/","date":"2021-01-21T05:34:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703522242.73/warc/CC-MAIN-20210121035242-20210121065242-00009.warc.gz","language_score":0.8722501397132874,"token_count":819,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__156427769","lang":"en","text":"The Nokia 808 Pure View is probably the biggest announcement so far at Mobile World Congress 2012 in Barcelona. The stand out feature (literally) on this device is the camera. The huge 41 Mega-pixel Camera phone from Nokia was a surprising development. Yeah sure, we expected a super camera-phone to be announced today, but I doubt anyone expected it to be a 41MP Whopper!\nApart from the ability to shoot images at that massive resolution (which is explained in the press release below), the phone also shoots videos at 1080p at 30FPS (a first for a Symbian Device). It also records audio at CD-Like Quality. There were a bunch of stop motion movies shot using the N8. This though, would definitely top those!\nHere’re the Specs:\n- Display: 4″ nHD (640×360) Clear Black AMOLED\n- Processor: 1.3GHz Single Core\n- Memory: 512 MB RAM, 16 GB on-board storage, Expandable via Micro-USB upto 32GB\n- OS: Nokia Belle\n- Connectivity: Bluetooth 3.0, WiFi b/g/n, USB OTG\n- Battery: 1430 mAH\n- Imaging: 41MP Nokia Pureview Pro imaging technology and Carl Zeiss optics, Xenon Flash, Full HD Video Capture\nThe Sensor is Massive! Here’s a photo of the Sensor used in the Nokia 808 Pure View:\nAnd here’s a video of the Camera Interface:\nWe have the Nokia 808 with us for a bit, so we’ll be back with more! Follow us on twitter, we’re @myportableworld\nPublished February 27, 2012 | By Nokia – Press Release\nNokia 808 PureView ushers in a revolution in smartphone imagingNokia sets a new industry standard with the first in a range of high end experiences based on exclusive Nokia PureView imaging technologies.\nBarcelona, Spain – Nokia today ushered in a new era in high-end smartphone imaging with the Nokia 808 PureView. This is the first smartphone to feature Nokia PureView imaging technologies, bringing together high resolution sensors, exclusive Carl Zeiss optics and Nokia developed algorithms, which will support new high-end imaging experiences for future Nokia products.\nThe Nokia 808 PureView features a large, high-resolution 41 megapixel sensor with high-performance Carl Zeiss optics and new pixel oversampling technology. At standard resolutions (2/3, 5 and 8 megapixels) this means the ability to zoom without loss of clarity and capture seven pixels of information, condensing into one pixel for the sharpest images imaginable. At high-resolution (38 megapixelmaximum) it means the ability to capture an image, then zoom, reframe, crop and resize afterwards to expose previously unseen levels of details. With superior low-light performance and the ability to save in compact file sizes for sharing in email, MMS, and on social networks, the Nokia 808 PureView makes it possible for anyone tocapture professional looking images in any conditions.\nIn addition to superior still imaging technology, the Nokia 808 PureView, also includes full HD 1080p video recording and playback with 4X lossless zoom and the world’s first use of Nokia Rich Recording. Rich Recording enables audio recording at CD-like levels of quality, previously only possible with external microphones. The Nokia 808 PureView also features exclusive Dolby Headphone technology, transforming stereo content into a personal surround sound experience over any headphones and Dolby Digital Plus for 5.1 channel surround sound playback.\n“Nokia PureView imaging technology sets a new industry standard by whatever measure you use,” said Jo Harlow, executive vice president of Nokia Smart Devices. “People will inevitably focus on the 41 megapixel sensor, but the real quantum leap is how the pixels are used to deliver breath-taking image quality at any resolution and the freedom it provides to choose the story you want to tell.”","domain":"optical_engineering"}
{"url":"http://gisconsultingservices.com/ajd-consulting-services/lidar-mapping-and-analysis/","date":"2018-08-15T01:34:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221209755.32/warc/CC-MAIN-20180815004637-20180815024637-00309.warc.gz","language_score":0.9462525844573975,"token_count":219,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__67351830","lang":"en","text":"LIDAR (Light Detection and Ranging) is a remote sensing technology used to create three-dimensional mapping of the Earth’s surface. LIDAR emits high-frequency light most commonly from an overhead laser on an aircraft or helicopter and measures its reflectance with a scanner to produce an accurate, geo-referenced location of each point or object on the earth’s surface as well as its height. The result is a dense, three-dimensional point cloud of an area that can be used with photogrammetry to produce highly accurate three-dimensional digital elevation and digital terrain models (DEM and DTM).\nAJD Geospatial Concepts has experience in using LiDAR point cloud data to prepare 3D DEMs and DTMs and manipulating them to analyze flood inundation, building heights and line of sight, parkland topography and trail location as well as in corridor mapping, building and feature extrusion. We are also skilled in using LiDAR for vegetation analysis and changes in forestation and site selection.\nI have used LIDAR to:","domain":"optical_engineering"}
{"url":"https://discoverpowersports.com/products/baja-designs-10-onx6-can-am-x3-shock-mount","date":"2023-06-09T19:09:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656788.77/warc/CC-MAIN-20230609164851-20230609194851-00009.warc.gz","language_score":0.8641916513442993,"token_count":307,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__8279435","lang":"en","text":"At an impressive 12,460 lumens, the brightest just got up to 69% brighter than our previous generation. The OnX6 + LED light bar also integrates Baja Designs’ trademarked High Speed Spot™ reflector, the same one used by our Team Enlightened racers, to give you the guaranteed furthest projecting LED Light Bar on the planet. In addition, the OnX6 + LED light bar adopts industry standard sizing and is now compatible with aftermarket mounting systems. An industry first 30 Day Satisfaction Guarantee & Limited Lifetime Warranty is included for the ultimate in purchase protection.\nSeparate yourself from the pack with the Baja Designs Can-Am OnX6 Shock Mount. This kit includes a 10\" OnX6 light bar and mount that easily bolts up to the factory shock tower and keeps the light stable at high speeds. This kit is ideal for someone looking to gain forward projecting light while maintaining the X3's aggressive styling.\nThis bar is equipped with BMT – Battery Management Technology\n-Elimination Of Flickering at Low Voltage\n-Added Protection to Vehicle Wiring and Systems\n-Protection from Dangerous Current Spikes\nThe OnX6+ LED Light Bar is BRIGHTER. BOLDER. BETTER.\nBaja Designs Features:\n- OnX6+ 10\" LED Light Bar\n- Mounting Brackets\n- Hi-Low Dongle","domain":"optical_engineering"}
{"url":"https://odm-cn.com/products/dm-l40-laser-rangefinder-convergence-meter","date":"2023-01-30T11:55:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499816.79/warc/CC-MAIN-20230130101912-20230130131912-00727.warc.gz","language_score":0.8399632573127747,"token_count":290,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__97255924","lang":"en","text":"DM-L40 laser rangefinder convergence meter\nThe laser convergence meter adopts the phase comparison principle for measurement. The laser convergence meter emits visible laser beams of different frequencies, receives scattered laser returned from the measured object, compares the received laser signal with the reference signal, and finally calculates the distance between objects corresponding to the corresponding phase offset with a microprocessor, which can achieve the measurement accuracy of mm level. The laser convergence meter has the characteristics of convenient and fast installation, but in order to achieve the best stability and data validity, the following two points should be paid attention to: 1. Select a suitable fixed installation position. 2. Pay attention to the fit between the installation space and the mounting frame.\n1. IP65 protection design, adapt to the harsh environment of the project site;\n2. Reliable digital transmission technology to avoid data loss and error code;\n3. It can rotate in two directions for easy adjustment.\nMeasuring range: 0.2m~40m\nRepetition accuracy: 1mm\nWorking temperature: - 10 ℃～ 75 ℃\nCommunication interface: RS485 digital signal\nInput voltage: 24-48VDC\nProtection grade: IP65\nExternal dimension: 120mm × 40mm × 50mm","domain":"optical_engineering"}
{"url":"https://tauruslasers.mikz.com/2021/07/26/laser-for-taurus-revolver/","date":"2021-09-22T04:34:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057329.74/warc/CC-MAIN-20210922041825-20210922071825-00175.warc.gz","language_score":0.9631474614143372,"token_count":874,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__82339710","lang":"en","text":"So, you’ve been questioning Laser for Taurus Revolver? If you’re brand-new to weapons, adding lasers to your tool may seem … extreme.\nYet, lasers have actually truly happened a favored weapon tool.\nLaser sights are little devices attached to, or might be a fundamental part of, your tool that task a laser light beam on to your target. This is made use of as an included recommendation factor in the sight picture: back sight, front sight, laser dot, as well as likewise target. The eye ordering result of the laser in conjunction with the sight photo permits much faster sight positioning as well as additionally target purchase. This is vital in a self-defense scenario.\nThere are a couple of various positioning selections for hand weapons: grip, back sights, trigger guard, internal introduction pole, and rail.\nA laser hold affixes to the grip of your tool. Many have a turn on the back or side of the hold that activates the laser immediately from the stress of your hand. Different various other lasers ought to be deliberately turned on. Make certain the laser you choose is produced especially for the make in addition to model of your hand gun. While the laser hold is very practical to make use of, it has to be used with a right hold to cause. And also as there are extremely couple of left handed versions, if you are left handed it may obstruct the laser.\nRear Sight Lasers\nBack Sight lasers are simply that. They connect to your back sights as well as likewise are light-weight along with really easy to attack. Numerous shooters favor these lasers taking into consideration that they do not add much mass to the tool. Nonetheless, some say that considering that they are smaller as well as also lighter, they can be less reliable.\nTrigger Guard Set Up Lasers\nTrigger guard put laser sights are terrific if you desire to make use of these sights on many weapons. They are extremely functional as well as can be utilized on different weapons. They are larger than various other lasers nonetheless that likewise makes them a lot much more effective. However, trigger guard lasers typically call for a new holster. A second issue that might be experienced is that the mounting support might not give a secured add-on to the tool, therefore accuracy can also be influenced.\nReview Rod Lasers\nIf you want to maintain your holster and not transform the form as well as additionally weight of your gun so substantially, take into account a laser that changes the inner guide pole. While this style is actually luring, installment is a great deal extra complicated than other lasers and also you dropped the capability to change these sight for windage or elevation.\nRail Mounted Lasers\nOne of among one of the most common lasers are rail installed Laser for Taurus Revolver. They might not be the tiniest however they are very easy to affix. You just ought to make sure you have sufficient rail area. Much like with the trigger guard placed lasers, these can have worry about the positioning bracket holding the laser flawlessly still.\nAfter you pick the laser sight mount, you’ll have to pick whether you prefer a red or green laser.\nRed lasers can be sensible due to their toughness as well as more economical manufacturing expenses. They have a larger temperature degree operational array as well as are ideal in between 15 along with 120 degrees Fahrenheit. However, a major disadvantage versus red lasers is day time presence. Throughout the day, red can commonly only be seen roughly 25– 30 lawns.\nGreen lasers, on the other hand, have daytime visibility approximately 100 lawns. They are much better to the center of the noticeable light array than red lasers making them additional noticeable throughout day light. This is optimum for target shooters that exercise primarily in daytime hours. However, Environment-friendly lasers require a lot more power, that makes their battery life half that of red lasers. They are additionally somewhat more sensitive to temperature along with are practical in between 40 and additionally 100 level Fahrenheit. Likewise, thinking about that green laser sight development is more advanced, they are far more pricey than red lasers.\nAt some point when selecting a laser, bear in mind your implied use, environmental problems, along with sort of gun in order to situate the one that functions best for you.","domain":"optical_engineering"}
{"url":"https://prodigy.eoas.ubc.ca/2023/05/11/raymond-ng/","date":"2024-04-20T12:34:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00123.warc.gz","language_score":0.9628099799156189,"token_count":121,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__123865645","lang":"en","text":"I have been engaging in analyzing sensor network data for over 10 years. One of the key techniques we have been working on has been outlier detection in data streams or time series. For many monitoring applications, identifying abnormal events is an important analytic task. Some of our studies in outlier detection from large datasets were published over 20 years ago but are still well-cited today.\nRecent applications include ocean monitoring and detection of gravitational waves by laser interferometers. Both applications are not only temporal but also geospatial in nature.\nI am not currently supervising any students.","domain":"optical_engineering"}
{"url":"http://dveyecenter.com/specials/","date":"2018-01-24T11:05:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084894125.99/warc/CC-MAIN-20180124105939-20180124125939-00284.warc.gz","language_score":0.9030983448028564,"token_count":453,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__131667685","lang":"en","text":"We at DV Eye Center make every effort to maintain the highest standard of eye care technology.\nCirrus HD Optical Coherence Tomography\nA new leading edge technology, the Cirrus HD Optical Coherence Tomography (OCT) is now available at DV Eye. It is the most valuable advance in retinal diagnostic imaging today. The OCT measures the retina (the tissue in the back of the eye) in order to detect and track signs of Glaucoma, Diabetic Macular Edema, and Age-Related Macular Degeneration. With the Cirrus HD OCT, a detail cross section of the retina can be evaluated. Conventional tests are often inconclusive, difficult and time consuming, or they detect the diseases after damage has already occurred.\nNew technology, like the OCT may save eyesight by providing more advance diagnostic tools for early detection of eye diseases.\nThe OCT scan is quick, painless. and non-invasive. The vibrant colorful reports are printed immediately for easy and straightforward interpretation.\nAtlantis Scleral Contact Lenses\nThe Atlantis Scleral Lenses are our primary option for patients with corneal diseases that cause irregular and high astigmatism that have a tendency to progress over time. The parameters and ability to modify the fit give the patient superior comfort, fit, visual acuity and corneal health over spectacles, soft contact lenses, and small diameter RGP’s. A lot of patients with corneal transplants, traumatic eyes, and corneal disease like Keratoconus are being corrected to 20/20 with the Atlantis Scleral Lenses. Call today to find out more about this exciting option.\nOrthokeratology (CRT-Corneal Refractive Therapy)\nThis safe and FDA approved for correction of myopia (nearsighted) without surgery. A specialized contact lens that you wear overnight to correct your vision throughout the day without any need for glasses or contacts lenses. The CRT lens are designed to gently reshape your cornea while you sleep to correct your vision. Imagine the vision of Lasik without the laser or the risk of surgeries. CRT also have shown to stop myopia from progressing.","domain":"optical_engineering"}
{"url":"https://www.autocareparts.com/products/copy-of-forever-car-care-black-black-top-gel-fb813","date":"2024-02-22T11:17:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473738.92/warc/CC-MAIN-20240222093910-20240222123910-00624.warc.gz","language_score":0.8930837512016296,"token_count":137,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__144651071","lang":"en","text":"Scangrip Matchpen #03.5117\nMATCHPEN - Slim penlight always at hand in the pocket\nMATCHPEN is a slim designed, small penlight easy to carry and always at hand in the pocket. The light output is very powerful with excellent colour recognition properties.\nThe penlight comes with focus function for concentrated and focused light beam ranging from 10° to 70°. 2 AAA batteries are included.\nBorn with excellent colour rendering properties for colour match, the penlight is designed for inspection in the workshop and especially useful for detection of scratches, pinholes and swirl marks. Made of sturdy and durable aluminum supplied with solvent resistant glass lens.","domain":"optical_engineering"}
{"url":"https://olcms.stem4youth.pl/content_item/detail/19","date":"2018-02-18T22:13:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812259.30/warc/CC-MAIN-20180218212626-20180218232626-00207.warc.gz","language_score":0.9053013324737549,"token_count":356,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__63127458","lang":"en","text":"[this block with combo boxes and tags placeholder]\nA script and supplementary materials for a lesson on light propagation and optical fibers.\nThanks to the invention of an optical fiber, it is possible to significantly increase the speed and bandwidth of the data transmission. Replacement of classic transmission cables, where the signal is transmitted by electrical impulses, by optic fibers made the high-speed Internet available also for individual users.\nProper selection of the materials for optical fibers production and the choice of the appropriate wavelengths used for transmission allow a creation of multi-kilometer sections of telecommunication networks without any electronic devices for the to the signal amplification.\nFiber optics are also excellent as sensors such as temperature and stress sensors. Because they are built entirely of dielectric materials, they are completely immune to any electromagnetic interference.\nFiber optics as sensor elements are used in the most demanding applications such as aerospace, mining and, for example, wind turbine blades monitoring.\nHigh-speed data transmission industry is one of the fastest-growing areas of business. Many leading manufacturers of fiber optic networking equipment invest enormous resources in the development of new technologies and are constantly looking for professionals in the field.\nFiber optics has great potential for interdisciplinary applications:.\n- Telecommunications - as the primary component of the telecommunications network\n- Sensor technology - the use of optical fibers as super-accurate measuring elements resistant to electromagnetic interference\n- Medicine - use in endoscopy, surgery, ophthalmology, in examining biological fluids\n- Chemistry - as sensors e.g., concentration of various solutions\nCover image by Matthew.nq (CC-BY-SA-4.0)\nKnowledge acquisition gain\nKnowledge about basics physics of light propagation and its applications in optical fibers.","domain":"optical_engineering"}
{"url":"http://arhavispor.net/2021/01/13/guangzhou-haike-outdoor-sport-co-ltd-presents-high-quality-and-precise-optical-instruments-used-for-rifle-scopes/","date":"2021-09-20T17:34:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057083.64/warc/CC-MAIN-20210920161518-20210920191518-00466.warc.gz","language_score":0.9457976222038269,"token_count":655,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__43303475","lang":"en","text":"Guangzhou Haike Outdoor Sport Co., Ltd Presents High-Quality And Precise Optical Instruments Used For Rifle Scopes\nIndustries or people who prefer high-quality and accurate outdoor and optical instruments for research and daily use can safely use the newly developed instrument from Guangzhou Haike Outdoor Sport Co., Ltd.\nGuangzhou Haike Outdoor Sport Co., Ltd is a China-based enterprise that provides R and D tools, optical instruments, and other outdoor tools for a broad panorama of industries and individuals searching for any form of optical tools for research or analysis. This private high-tech enterprise was established in the year 2014 with a clear vision to be a significant player in research & development. The company is equipped with the latest series of assemblies for optical instruments and accessories for outdoor use, also well-incorporated test equipment. Additionally, they have a well-educated, experienced, stable, and trained workforce that includes all kinds of experts and technical personnel like engineers, senior technicians, artisans, etc., who have vast experience in developing various types of optical instruments and outdoor products.\nThese Ira Bipods are essential pieces of equipment for any hunter or researcher. They help stabilize the gun or other research equipment, avoid unnecessary shaking, and provide a steady platform for difficult shots. This company has a variety of these bipods designed for every purpose and use. The designs meet the needs of various professions and are always up-to-date. With these instruments, height from the ground up to several meters, slopes, unique leg positions, and many other general requirement areas can be achieved. Similarly, these instruments are accessible in different adjustable sizes so that users aren’t remaining twisting over splitting their back to get the perfect shot.\nThe optical sight is accessories people can add to their revolver, which offers the user tremendous advantages when it comes to accurately sighting and aiming. They have been shown to help the average user shoot better and with more incredible speed and accuracy. The spokesperson revealed that this simple tool is mounted to a handgun. It emits a laser light beam. When properly aligned and adjusted, the user aims the gun at a target, and when the laser shines on the desired point of that target, it should allow the bullet to hit that target very accurately.\nHighly trained experts are involved in the making of Guangzhou Haike Outdoor Sport Co., Ltd’s Red dot sights. This is an advanced technology that avoids harmful laser beams and achieves better results. This device is beneficial and assists well in military combats and sport shooting. Red dot technology has significantly facilitated hunting to a great extent. The device has an unlimited field view, eye relief and remains unaffected by adverse weather conditions. The legendary toughness of this sight is also well maintained in all its sights.\nAbout Guangzhou Haike Outdoor Sport Co., Ltd\nGuangzhou Haike Outdoor Sport Co., Ltd is one of the leading private high-tech enterprises in China providing high-quality research and development equipment. The company has supplied various products such as laser sights, night vision devices, telescopes, microscopes, binoculars, and other outdoor tools to multiple customers worldwide for more than six years. This company hires trained and experienced professionals to design and supply these products.","domain":"optical_engineering"}
{"url":"http://www.patrick.com/front/archives/2008/01/yukaris_am_radio_debut.html","date":"2015-07-30T00:00:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-32/segments/1438042986806.32/warc/CC-MAIN-20150728002306-00323-ip-10-236-191-2.ec2.internal.warc.gz","language_score":0.9383423328399658,"token_count":472,"dump":"CC-MAIN-2015-32","global_id":"webtext-fineweb__CC-MAIN-2015-32__0__52939963","lang":"en","text":"January 29, 2008\nYukari's AM Radio Debut\nYukari was interviewed today on The Wall Street Journal's morning show, a syndicated radio show broadcasted nationwide in the States.\nWondering why we'll continue to buy flat-panel TVs, even as the economy collapses? Listen to Yukari's segment for the details!\nPosted by pmk at January 29, 2008 7:43 AM\nFirst in a 3d movie you have double imaegs of everything and one can only go to the right eye and one only to the left. The glasses have to block the image for the other eye. To do this there are 3 main 3d formats.1. Anaglyph It uses two colors and several color combination can be used. If red and blue is used then all imaegs for say the left eye are red and all right eye imaegs are blue. Then the red and blue lenses block the opposing color so that that eye only gets one image. So any device that can produce color can do this format.Now for the other two formats just a regular tv can't do them because of the way they work.2. polarized This uses polarized light waves. All right eye imaegs have a clockwise polarized light wave, and all left eye imaegs a counter clockwise polarized light wave. Then the lenses of the glasses block the opposing light wave. A regular tv can not put out two different light waves. There are polarized 3d tv's but the screen must have a kind of coating on it so all even numbered horizontal lines put out one light wave and all odd numbered horizontal lines put out the other light wave.3. field or frame sequential This format uses shutter glasses. On the glasses when one lens opens the other lens closes and they do this back and forth very fast. When a lens is open then the image for that eye flashes on screen. Tv's and dvd players were never made to flash back and forth between double imaegs and sync them up with some glasses, so you need a tv that can to this some how. This is the format that tv makers are going for at the moment, not polarized like most theaters are using. I have been to an Imax theater that uses the shutter glasses.","domain":"optical_engineering"}
{"url":"https://www.austdynatech.com.au/mks-precisive-5-gas-analyser/","date":"2023-12-06T21:53:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100603.33/warc/CC-MAIN-20231206194439-20231206224439-00671.warc.gz","language_score":0.9204939603805542,"token_count":259,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__313312491","lang":"en","text":"Precisive’s online and real-time infrared gas analysers use an innovative all-optical technology with the sensitivity and specificity comparable with Gas Chromatographs but without the need for analyser calibration, these highly advanced analysers are as effective, more efficient and less costly than traditional GC-based monitoring systems.\nTried and tested in some of the harshest field environments, MKS – Precisive aims to develop real-world solutions for the environment you work in. This technology has resulted in astounding benefits. With an extremely robust design at less than half the cost of traditional Gas Chromatographs and no need for analyser calibration, these systems offer incredible value for money with very low maintenance required.\nMKS – Precisive’s incredible technology is more efficient than Gas Chromatographs with real-time response, multi-compound detection and high sensitivity.\nAustralian Dynamic Technologies are Australian distributers for MKS – Precisive on-line and real-time infrared gas analysers. Using an innovative all-optical technology with “GC like” sensitivity and specificity, these products have built in, permanent analyser span calibration. These highly advanced infrared gas analysers are as effective, more efficient and less costly than traditional GC-based monitoring systems.","domain":"optical_engineering"}
{"url":"http://www.smaryo.com/products.html","date":"2023-03-31T16:26:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949644.27/warc/CC-MAIN-20230331144941-20230331174941-00034.warc.gz","language_score":0.8394755721092224,"token_count":200,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__271536510","lang":"en","text":"A high-tech company specializing in the research, development, manufacturing and marketing of optoelectronics products\nOptical amplifier are widely used in backbone, metro, OTN or PTN networks. They are one of the critical key components of optical communication system.\nOptical Transceiver converting electrical signals in optical signals and vis versa. They are mainly consists of an optical receiver and transmitter and the corresponding control circuit.\nOptical devices can be distinguished into active and passive devices. Optical active devices are photoelectronic components which convert electrical signals into optical signals or optical signals into electrical signals.\nUltra long-haul transmission system, Access subsystem, Fronthaul WDM subsystem, other subsystem equipment.\nWuxi Taclink Optoelectronics Technology Co., Ltd.\nBlock 93-C, Science&Tech. Industry Park, Xinwu District, Wuxi, Jiangsu, PRC","domain":"optical_engineering"}
{"url":"https://www.cb-computech.de/en/optical-bonding/","date":"2020-07-09T16:52:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655900614.47/warc/CC-MAIN-20200709162634-20200709192634-00286.warc.gz","language_score":0.8998457193374634,"token_count":260,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__182797877","lang":"en","text":"Military / Marine\nOptical Bonding. Display, Touch, Carrier Glass. We offer you high quality\nOur Bonding Service for You\nTouch – Carrier Glass\nDisplay – Touch – Carrier Glas\nOptical Bonding means the bonding of two materials by an optical adhesive (eg display and touch ). During the bonding process the air gap between the two media is avoided. The unit is less sensitive to humidity and temperature fluctuations. In addition, less reflection , improved optics , higher durability and longer life is obtained.\nYou are looking for a Bonding Partner for full serives according to your requirements? We offer many opportunities for you.\nDont hesitate to contact us for your optical bonding project\nAdvantages of Optical Bonding\nduring bonding glass reflection is reduced, this brings out a better contrast and better readability without higher power consumption even in critical lighting conditions.\nsince there is no air gap between the glass panel, touch screen or display, no moistureor condensation can penetrate and settle down.\na bonded display is more stable and more resistant against mechanical stress , the device is therefore also more robust.\nby closing the insulating air gap between the glass panels heat can escape to the outside and results in a better heat dissipation.\nimpoved optics for the user","domain":"optical_engineering"}
{"url":"http://greenerideas.com.au/advantages/","date":"2017-07-26T00:28:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549425737.60/warc/CC-MAIN-20170726002333-20170726022333-00618.warc.gz","language_score":0.9412619471549988,"token_count":546,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__66285433","lang":"en","text":"Light Emitting Diodes or commonly known LED lighting is a new approach to creating lighting devices that offer a greener alternative to Compact Fluorescent Lighting (CFL), Halogens and notoriously inefficient incandescent lights\nGreener Ideas manufacture and supply a complete range of “plug & play” LED lighting products specifically for the Australian market capable of meeting all lighting needs.\nOur diversified product range continues to grow by following LED Lighting advances, combined with innovative product designs and improved lighting efficiencies helping save energy and the environment.\nUnique products & services allow us to create distinctive products with substantial energy savings.\nLed lights have many advantages over conventional lights. They are the cutting edge to the light industries answer for efficient & safe lighting. They give a very clean light with no UV, have a very long lifetime that is over 50,000hrs, and use very little power making them unquestionably the most efficient lighting products available.\nBy definition LED lighting is the cheapest to run and the most environmentally friendly.\nAdvances in LED technology have enabled Led Tubes, Bulbs and Down Lights to be produced which simply replace the existing ones, providing the same amount of light but with a 65 – 95% reduction in electricity consumption. Whilst this in itself is enough reason to make the switch, further health and safety benefits associated with the products ensures a cleaner, quieter and safer working environment There are three main reasons why LED lighting is superior to the two main lighting options we currently know of – CFL’s and incandescent.\nLED lighting is known to use about 10% of the energy used by traditional incandescent lighting. Incidentally, incandescent light bulbs only use 10% of the energy they consume for lighting, the remaining 90% of energy is wasted as heat loss. CFL lighting is somewhere in between this two extremes, using about 65 – 85% more energy than LED lights use.\n2. Useful life\nThe average lifespan of LED lighting is expected to be about 8-15 times of an incandescent light, based on different manufacturers. LED lights can work over 50,000 hours. Where as CFL’s work from 6,000 to 15,000 hours and incandescent about 5,000 hours. LED’s offering significant maintenance and replacement cost advantages.\n3. No Hazardous Materials\nThe main difference between LED and CFL lighting is the use of mercury (Hg) vapors in the CFL tubes/bulbs. Thus, making the disposal of CFL’s a key issue for homes, businesses, local towns and municipalities. Harmful chemicals end up in land fill which eventually filters through to our water tables and water ways.","domain":"optical_engineering"}
{"url":"https://www.microbehunter.com/how-can-micrographs-be-digitally-processed/","date":"2023-12-01T20:35:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100304.52/warc/CC-MAIN-20231201183432-20231201213432-00457.warc.gz","language_score":0.9356110692024231,"token_count":251,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__217428536","lang":"en","text":"Digital post processing can be accomplished by using GIMP or PhotoShop. This can include:\n- Contrast enhancement: Dark parts of the image are made darker and bright parts are made brigher. THis often increases the crispiness of the image without the need of sharpening.\n- Sharpening: The software detects corners and locally increases image contrast.\n- Stitching: Several overlapping images are combined into a single larger picture using panorama software. This is frequently done when the magnification is too high for the camera to capture the whole specimen at once.\n- Stacking: Several images taken at a different focus level are combined into one final, completely sharp image.\n- HDR imaging: Several images with different brightnesses are combined to produce a final image in which all parts of the picture are correctly exposed.\n- Cropping: This is the removal of unnecessary parts of a picture.\n- Averaging: Several images of the same specimen are averaged. This improves the signal-to-noise ratio of the image and also removes movement. Only the constant parts of the picture will be shown.\n- Background cleanup: this is the manual removal of dust from the background. The picture will simply look much better this way.","domain":"optical_engineering"}
{"url":"https://johnmdonohue.wordpress.com/2018/01/27/photons-with-programmable-spectra-in-optics-express/","date":"2023-03-28T10:50:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948858.7/warc/CC-MAIN-20230328104523-20230328134523-00587.warc.gz","language_score":0.9361871480941772,"token_count":492,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__127016501","lang":"en","text":"Want high-purity single photons, but with control over their temporal shape? A result from our collaboration with Marco Barbieri’s group at University Rome Tre, Heralded generation of high-purity ultrashort single photons in programmable temporal shapes, explains how, and is now published in Optics Express.\nOne of the bigger limitations of downconverted photon pairs is their tendency to be spectrally entangled, which can be harnessed for quantum advantages in some cases but ruins the interference of photons from distinct sources. By designing specialized sources pumped with broadband laser pulses, it is possible to engineer situations where the time-frequency correlations demanded by the energy conservation of the pump are offset by the conservation of photon momentum in the downconversion material. In these cases though, you are stuck with the photon shape corresponding to the demands on the downconversion medium, limiting their usefulness and adaptability.\nIn this work, we make use of a phasematching condition known as asymmetric group-velocity matching, where the pump pulse and signal photon travel together, but the idler photon walks off in the medium. This produces a situation where the signal maintains roughly the same temporal width as the pump, but the idler becomes much much longer. In the limit where the walkoff is longer than the pulse widths, the photon pair becomes approximately spectrally separable. Going one step further, the idler photon’s temporal shape is defined entirely by the amount it walks off from the pump, whereas the signal’s shape is defined by the spectral shape of the pump. In this way, custom-shaped photons can be generated by simply shaping the pump pulse, as seen for the Hermite-Gaussian shapes in the figure above.\nOf course, there are problems. Due to the sinc shape of the phasematching, the idler is much purer than the signal, as we measure through second-order correlation functions. However, this balances out when the signal photons are heralded by an idler detection in the main peak.\nThe paper can be found at Optics Express or on the arXiv as 1711.09678. Congrats and thanks to all involved, particularly Vahid Ansari and Emmanuele Roccia, who did the vast majority of the lab work, and the KTP squad at UPaderborn for designing the source.","domain":"optical_engineering"}
{"url":"http://www.naturephotographers.net/articles0408/dw0408-1.html","date":"2023-03-31T18:54:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949678.39/warc/CC-MAIN-20230331175950-20230331205950-00725.warc.gz","language_score":0.9687583446502686,"token_count":1049,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__212907557","lang":"en","text":"Can You Trust Autofocus with Your Digital Camera?\nText and photography copyright © Darwin Wiggett. All rights reserved.\nI was testing the sharpness of a couple of Canon lenses the other day when I discovered something that blew me away. I got much sharper photos by manually focusing my lenses than if I used autofocus! Right away I thought something must be wrong - the camera must be at fault (maybe that rear focus problem that has haunted some Canon cameras) or maybe the lens was faulty or something like that. How could manual focus give me significantly sharper results than autofocus? Well after testing all my lenses on two camera bodies (a Canon 1ds Mark II and a Canon 1ds Mark III) and then testing my girlfriend's Nikon D200 with several of her lenses, the conclusion remained the same: Careful manual focus always gave me better results than autofocus did!\nI first noticed the difference when using my Mark III while testing my 24-70mm f2.8L lens. I used autofocus at f2.8 to make an image of rock details on the beach and then repeated the same picture, but this time I used manual focus and the 10X magnification feature in \"live view\". With live view, you can see precisely what the sensor sees on the LCD and magnify the view 10 times for critical focus. The differences were huge!\nI tried autofocus at various apertures but the results were always the same - live view, manual focus gave the sharpest results in spite of gains in depth-of-field with smaller apertures. When I tried the same test with my 135mm f2.0L lens on the Mark III and live view, manual focus won again.\nI tried every lens I owned, but got the same results. It wasn't a problem with the lenses.\nTo be sure the problem was not with my Mark III (Canon has had autofocus issues with the Mark III series), I used the same lenses on my Mark II and got the same results with autofocus as I did with the Mark III.\nIn fact, every lens I used on either camera gave me the same results. There were no differences in focus quality when using autofocus on either camera.\nLive view is a tremendous asset for critical focus, so maybe comparing autofocus performance with the minute and critical manual focus advantage offered using live view was not really fair. I decided to use my girlfriend's Nikon D200 to see if plain old manual focus using the viewfinder was as good as using autofocus (the D200 does not offer live view). Plus, I wanted to make sure that poor autofocus performance was not just a Canon problem! Using the Nikon D200, I was completely surprised by the results. I could always focus the image sharper just using the viewfinder and manual focus than the camera could by using autofocus.\nAutofocus with the Nikon was just as \"imprecise\" as it was using the Canon. Autofocus is pretty good with all of the cameras and lenses I tested but not as good as the human eye. In the field I now often let autofocus do its \"best\" and then I check the results using live view. I almost always need to re-adjust the focus slightly to get the optimal results. Simply put, I no longer trust autofocus when I am shooting landscapes.\nWhat's the moral of this story? Test your camera and lenses to see if your eyes are better than the camera's autofocus capabilities. In all of my tests, I used flat surfaces with good contrasty subjects and leveled the camera for perfect flatness. I also used wide apertures (e.g. f2.8 or f4) so depth-of-field did not mask errors in focusing. I used a cable release and mirror lock-up on a sturdy tripod to insure there was no camera movement. In the real world, using autofocus and a smaller aperture (f8 and beyond) will often \"correct\" for slight focus errors. But if you have decent eyes and want the absolute best performance from your lenses, use manual focus - especially if your camera has live view.\nFor years I have owned autofocus lenses but always used them manually for landscape photography so I could pick my focus point for optimal depth-of-field and also not waste battery power. Over the last several years, I have used Canon's tilt and shift lenses for my landscape work. These lenses can only be focused manually. Now that I have discovered just how much sharper manual focus can be, I am glad I have had autofocus turned off for so many years! Check for yourself to see if manual focus works better for you in nature photography.\nComments on NPN digital photography articles? Send them to the editor.\nDarwin Wiggett is a professional nature and outdoor photographer from Alberta, Canada. You can see more of his work at www.darwinwiggett.com or at www.timecatcher.com.","domain":"optical_engineering"}
{"url":"https://www.ledzrun.net/industry-trends/led-transparent-screen-factory.html","date":"2022-11-26T14:53:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446708010.98/warc/CC-MAIN-20221126144448-20221126174448-00206.warc.gz","language_score":0.9379926919937134,"token_count":1037,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__63495686","lang":"en","text":"The Trend of Led Transparent Screen Series\nAug. 14, 2020\nThe weight of the traditional LED display is generally more than 30kg/㎡, and the structural load-bearing requirement is high. When the LED display is made of special-shaped products, it will be restricted. When splicing irregular shape, there are seams. The traditional LED display requires a large-scale steel frame when building. The structure is time-consuming and labor-intensive and has a certain impact on the shape and aesthetics of the building. LED display screens are opaque. After the project is installed, it will not light up during the day. The black area will affect the appearance of the building, block sunlight and sight. Coupled with vicious competition among LED display manufacturers, profits are extremely low. Companies could only survive through independent innovation, find new ways, and differentiated competition in products. The high-transparent LED transparent screen series can effectively solve a series of problems above the normal LED display. Our led transparent screen, adhesive transparent screen, led transparent film screen is light, thin and beautiful, it does not affect the appearance of the building without lighting; high permeability guarantees the lighting requirements and viewing angle range of lighting structures between floors, glass facades, windows, etc., and easy to install and maintain, completely change the limitations of normal LED display on glass.\n1, Advantages and Opportunities of Glass Led Display\nLED transparent screen has become one of the most watched display products in the past two years with its transparent and beautiful characteristics. The 50%-90% transparency rate of LED transparent screen greatly reduces the impact of LED display on the appearance of buildings. In addition, it is installed close to the glass curtain wall, which has avoided the approval of outdoor advertising. Even in the United States, where advertising monitoring is very strict, it has been accepted and welcomed by the government and businesses. Because it is mostly installed behind the glass curtain wall, even when it is not working during the day, it will not cause any impact on the surrounding environment. And when playing the advertisement, when designing the advertisement content screen, the unnecessary background color is removed and replaced with black, only the content is displayed, and the appropriate part is not illuminated during playback, which is a transparent effect. It can greatly reduce light pollution and reduce energy consumption. It can achieve more than 30% energy saving than ordinary LED displays.\nWith its brand-new visual experience and application experience, LED glass wall screens occupy a place in the market with unique display methods, thin and light appearance design, and high-end fashionable technological atmosphere. With the development of the times, the current urban curtain wall construction , New advertising presentation, landscape exhibition, shopping mall canopy and other fields have unique advantages, glowing with a brand-new display image, and gradually attracting people’s attention, the market has unlimited business opportunities. This product is a new growth point of our company's operating income and profits, quickly occupying the market, and improving the brand's influence and popularity of the company.\n2. Current Status, Level and Development Trend at Home and Abroad\nCompared with the Chinese market, the overseas LED display industry accounts for a relatively small proportion of global sales. In general, the world's current LED display industry is concentrated in the Pearl River Delta region of China, occupying almost 80% of the entire LED display market sales. At present, the world has initially formed an LED display industry pattern centered on the three major regions of Asia, North America, and Europe. As an earlier and faster mature product in the LED industry, LED displays are currently widely used in outdoor advertising and sports all over the world. Venues, transportation and performances, as well as various occasions such as exhibitions, leases, and gatherings.\nUnder the influence of the external macroeconomic downturn and the internal price wars of the industry, overcapacity, disorderly competition and other factors, the waterproof and high-permeability rental LED transparent screen developed by our company has broken through the technical breakthrough of extremely transparent, minimalist, advanced concept, Novel and unique features, based on unique structural design, differentiated competition with conventional LED screens on the market, focusing, exerting efforts and intensive cultivation of the market segment of LED displays.\n3. Market Prospects\nProducts in the emerging segment are the hot spots for the development of the LED display industry. The market value of LED transparent screens in 2025 will reach 87.2 billion US dollars. The market demand for transparent screens in my country is very huge, and the market development efforts are far from enough. Just take the glass curtain wall market as an example. According to relevant information, the total area of modern glass curtain walls in China has exceeded 70 million square meters, and its market potential is very huge. The advertising value of this market has not been fully developed. With advertising resources increasingly depleted, glass curtain walls are a new blue ocean field. The scope of this field is very wide, such as city landmark buildings, municipal buildings, airports, automobile 4S shops, hotels, banks, chain stores and other glass curtain wall buildings with advertising commercial value.","domain":"optical_engineering"}
{"url":"https://eflc.org.au/product/daylight-magnificent-pro-lamp/","date":"2024-03-04T15:12:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00399.warc.gz","language_score":0.8266886472702026,"token_count":150,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__108077981","lang":"en","text":"The Magnificent Pro is a versatile 3-in-1 Floor Magnifying Lamp, a Table Magnifying Lamp and a Task Lamp. With a large 13cm 1.75X semi-rimless magnifying lens which gives you a clear view of your work and the magnetically attached cover transforms the magnifier into an elegant task lamp. The highly flexible arm allows perfect positioning for all your tasks. The Daylight LEDs provide high contrast and accurate colour matching, making it easier and less tiring to read, work and see detail clearly.\nCable length: 1.8m\nBrightness Levels: 3\nLux Levels at 15cm: 5,500 / 3,500 / 1,500\nColour temperature: 6,000K","domain":"optical_engineering"}
{"url":"http://cache.oalib.com/cache?m=2707B9D5F4A119EFFFA63E8F184584CF.html","date":"2020-03-30T10:20:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370496901.28/warc/CC-MAIN-20200330085157-20200330115157-00159.warc.gz","language_score":0.9417139887809753,"token_count":206,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__63299618","lang":"en","text":"Real-time Optical-flow Computation for Motion Estimation under Varying Illumination Conditions\nThe optical flow approach has emerged as a major technique for estimating object motion in image sequences. However, the obtained results by most optical flow techniques are poor because they are strongly affected by large illumination changes and by motion discontinuities. On the other hand, there have been two thrusts in the development of optical flow algorithms. One has emphasized higher accuracy; the other faster implementation. These two thrusts have been independently pursed, without addressing the accuracy vs. efficiency trade-offs. The optical flow computation requires high computing resources and is highly affected by changes in the illumination conditions in most of the existing techniques. In this paper, a new strategy for image sequence processing is proposed. The data reduction achieved with this strategy allows a faster optical flow computation. In addition, the proposed architecture is a hardware custom implementation in EP1S60F1020 FPGA showing the achieved performance.\n- There are currently no refbacks.","domain":"optical_engineering"}
{"url":"https://tienstiens.org/seven-best-binoculars-made-in-the-usa/","date":"2023-11-29T19:07:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100135.11/warc/CC-MAIN-20231129173017-20231129203017-00781.warc.gz","language_score":0.9693116545677185,"token_count":288,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__102072333","lang":"en","text":"When it comes to binoculars, you have a couple options. You can get ones made in Japan and Korea, or you can get them made in the United States. While each of these countries does a pretty good job making high quality binoculars, they are not interchangeable in any way. If you’re interested in getting some new binoculars for your collection, you should learn about the differences between the various binoculars made in the United States. Click Here – https://opticsschool.com/best-american-made-binoculars/\nBuying Binoculars Made In Usa\nFor starters, there are seven best binoculars made in the US by American manufacturers. The Pentax Optics SL and Minox Laser Focus series are both from Pentax. They use convex lenses, which are not as wide angle as their spherical counterparts but are still very sharp. They are also available on some Japanese and Italian designs as well.\nThe Zeiss lens models are made in the US by the Zeiss Company. This company is a leader in the manufacturing of binoculars for hunters, including binoculars with a long distance capability. These binoculars use an element of the patented technology that Minox has patented. If you are looking for a top binocular that is highly rated in quality control and accuracy, you should definitely look at these binoculars.","domain":"optical_engineering"}
{"url":"https://robustpreparation.com/best-night-vision-scopes-5-top-picks-reviewed/","date":"2022-09-26T19:53:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334915.59/warc/CC-MAIN-20220926175816-20220926205816-00396.warc.gz","language_score":0.9514357447624207,"token_count":1519,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__214702037","lang":"en","text":"Preppers, we all know how important it is to be prepared for any situation. Whether you’re a prepper or not, the idea of being ready for anything that may come your way has never been more relevant than it is today. So, in order to help you prepare and be as well-equipped as possible when disaster strikes (or even if it doesn’t), I wanted to share with you some information on night vision scopes. This blog post will review five of the best night vision scopes available right now and give you an idea of what each one can do so that you can make an informed decision about which scope would work best for your needs! Read on to find out more!\n1. What company do you think makes the best night vision scope?\n2. Do you have a night vision scope yourself?\n3. Which are your personal favorite features of some good night scopes?\n4. Where can I find these different night vision scopes on Amazon?\n5. How much money is one of these things going to cost me, and how soon will they come in the mail after I order them on Amazon Prime?”\nThe clear sky is waiting to be unveiled.\nYou may think that night vision is for the military, but in recent years it has been made available to civilians. With this new technology, people are now able to hunt varmints at night using these scopes which have helped them see better than they ever could before!\nUpgrade your hunting game with the best generation 3 night vision scope.\nNight vision technology is becoming more advanced, and hunters are constantly on the lookout for better equipment. In this article I will talk about some of the best night vision scopes that you can find in stores today to help make your hunting experience a successful one.\nBefore you start shopping for night vision equipment, it is important to know the different types of technologies and how they work. Technically speaking there are a few different categories of “night vision” technology with various features that may or may not be worth your time depending on what you’re looking for in an optic device.\nMovies often show actors purportedly using “night vision” to see at dark, but this isn’t entirely accurate; before purchasing any type of nightvision optics, one should consider its advantages and disadvantages as well as their intended use so they don’t waste money without considering other options first!\nThe military has been at the forefront of night vision technology since World War II, and while recent advancements have still not made it available to regular civilians. Night vision equipment does this in several ways including by amplifying light from stars or moonlight as well as enhancing digital signals.\nThe technology depended on gathering infrared light and converting it into visible light, but the equipment was large, heavy, and required an external source of illumination. Generally this type of technology is considered Generation 0 as they are no longer in use or manufactured. Current versions gather available ambient lights (hence their name “starlight scopes”) to amplify these images for viewing without a need for extra lighting sources like flashlights before transmitting them to viewers through green-tinted lenses similar to sunglasses that filter out glare from bright headlights at night while still allowing color vision. From goggles designed specifically with hunters in mind who might be tracking prey after sunset until portable units mounted onto rifles used by military snipers deep behind enemy lines nighttime operations can now function effectively even when all\nGet the perfect shot in the dark.\nAs a civilian, you may think your use of night vision would be limited to hunting or military activities. With the latest technology available called Generation 3 Filmless Image Intensifier (sometimes referred as Generation 4), this is not true anymore! This new advancement in infrared sighting has revolutionized how we can see and interact with our environment at nighttime through an electronic eyesight without any need for light source like moonlight or starlight. Just imagine what it feels like when you are walking on top of leaves during dead-of-night while wearing these goggles–you will feel so empowered that nothing else matters except keeping whoeever’s backside from being illuminated by them all the way down to zero range.”\nDigital camera technology developed to function in the dark with better sensitivity than ever before. The development of digital night vision equipment soon followed, and these devices have several advantages over older models-digital sensors are immune from damage by bright light for example.\nDigital night vision equipment is the latest and greatest in technology. The sensors used have virtually unlimited lifetimes, making them much more durable than traditional light amplification equipment. These digital scopes produce fantastic images that are easily converted to other types of files for storage purposes. Not surprisingly, these cameras are cheaper to make as well!\nThe latest entry into the civilian night vision arena is a technology that uses infrared to detect objects during dark or no light scenarios. This equipment detects long-wave radiation and converts these wavelengths into images that are visible to adults in low-light environments. The hotter an object, the more intense color it displays on the image displayed by this device as its temperature increases when reading other heat signatures around it like people or animals.\nThe latest entry into military field tools for tactical operations has been under development for over 20 years now – thermal imaging scopes have become increasingly popular with law enforcement agencies due to their ability not only identify subjects at long range but also provide accurate readings of body temperatures so they can be used effectively in cases where human trafficking may be taking\nThermal imaging scopes provide a lot of benefits, but they also have some disadvantages. Thermal imagers can see in total darkness without the use of illuminators to create an image reflected off objects. This is not possible with night vision equipment that relies on light sources and becomes less effective when there are obstacles like fog or smoke blocking its view. One disadvantage thermal images do face is their sensitivity to infrared radiation from things such as glass which blocks them completely; this means they cannot be used through windows for surveillance purposes at all! Thankfully though, it’s easy enough just point your scope rather than looking around if you’re trying to find something specific because while potent those advantages still exist even then: unlike other types of devices, thermal cameras don’t require any\nGet on target, fast!\nNight vision systems are a great way to see in the dark, but what do you need? The best night vision scopes. ATN NVM 14-2 is my pick for the number one spot on this list because of its sleek design and durability that will keep it running all year round no matter how often use it or where you take your next adventure.\nATN has been producing cutting-edge Gen 3 night vision equipment for over 20 years. The ATN-14D is a multiuse system that can be worn on your head, mounted onto a helmet or firearm, or used as an additional eye in the dark with its hand held design – making it perfect not only for those who are sportsmen but also law enforcement alike. Considering all of these features and versatility at such reasonable prices, this versatile gear may just turn into one of your favorites if you give it chance!\nATN specializes in high quality Generation 3 Night Vision Equipment which they have been developing since 1991. One product from their line includes the NVM 14 D model; unlike most other products designed by AT","domain":"optical_engineering"}
{"url":"https://arcas.org.au/spectral-reflectance-characterization-and-fiber-type-discrimination-for-common-natural-textile-materials-using-a-portable-spectroradiometer/","date":"2024-03-02T05:51:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475757.50/warc/CC-MAIN-20240302052634-20240302082634-00246.warc.gz","language_score":0.9232377409934998,"token_count":367,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__96457698","lang":"en","text":"Publication date: November 2019\nSource: Journal of Archaeological Science, Volume 111\nAuthor(s): Hengqian Zhao, Yunli Wang, Shuai Liu, Kunheng Li, Wei Gao\nComponent identification of textile materials is an important issue for studies of cultural heritage collections and science conservation. Portable spectroradiometer technology as a potential technique can be utilized to discriminate mass natural fibers rapidly and nondestructively. The goal of this study was to examine the feasibility of portable spectroradiometer to natural fiber type discrimination in the spectral range covering visible and near infrared (VNIR) (350–1000 nm), shortwave infrared 1 (SWIR1) (1000–1850 nm) and SWIR2 (1850–2500 nm). For this purpose, reflection spectra of four types of natural fibers commonly used in archaeological textiles were measured using a portable spectroradiometer under standardized conditions. The spectral features of four categories of natural fibers in different wavelength ranges were extracted and compared. To further explore the potential of discriminating the fiber types using portable spectroradiometer, principal component analysis in combination with statistical tests was applied. The results indicated that fiber type had a strong influence on the spectral features, which was much more remarkable than the influences of the intra-class variation and physical properties. Moreover, with large inter-class variation and small intra-class variation, SWIR2 was more suitable for fiber type identification than VNIR and SWIR1, which was also validated in the statistical analysis. Besides, the approach of selecting effective principal components in different wavelength ranges could provide a more optimized combination of differential information for the correct assignment of the investigated natural fiber types of textile materials. In general, portable spectroradiometer could be a powerful technique for on-site fiber type discrimination.","domain":"optical_engineering"}
{"url":"https://www.zaber.com/tyndall-national-institute","date":"2018-03-22T04:22:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647768.45/warc/CC-MAIN-20180322034041-20180322054041-00284.warc.gz","language_score":0.7639784216880798,"token_count":427,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__158229736","lang":"en","text":"Oregon State University:\nTyndall National Institute:\nUniversity of Alberta:\nInterfacial Science & Surface Engineering\nUniversity of Cincinnati:\nMicro and Nano Manufacturing\nUniversity of Waterloo:\nUniversity of California Davis:\nLaser 2000 (UK):\nThe University of Sheffield:\nOptical Infrared Telescopy\nNear-field Optical Microscopy\n- Other Spotlights\n- Oregon State University:\nTyndall National Institute: Epitaxy and Physics\nCustomer Use Application\nThe Epitaxy and Physics of Nanostructures (EPN) group at Tyndall National Institute, University College Cork, Ireland is using an X-LSM050A, one of Zaber's X-Series linear stages with a built-in controller, to build a long scan autocorrelator to characterise the pulse-width of a tuneable wavelength Ti:sapphire laser. Zaber's stage is part of a Michelson Interferometer where the pulse-width is measured as a power of a sum-frequency generation (SFG) signal vs. an optical delay. The set-up enables the fast characterisation of pulses with the width of tens of picoseconds. Precisely tailored pulse-width (typically in the range of a few picoseconds) is a critical parameter in resonant quantum dot excitation schemes.\nAbout the Epitaxy and Physics of Nanostructures group at Tyndall National Institute\nThe EPN laboratory investigates the epitaxial growth mechanism and the physics of a variety of semiconductor structures. In particular, this group is undertaking fundamental studies of the growth mechanism and the optical properties of Pyramidal site-controlled quantum dots obtained by growing them in pre-patterned GaAs substrates. Their field of interest spans as far as optoelectronic and electronic devices, with special attention to light emitting sources at telecom wavelengths.\nVisit the EPN website at https://www.tyndall.ie/EpitaxyandPhysicsofNanostructuresResearchf Nanostructures.","domain":"optical_engineering"}
{"url":"https://ionlight.com/about-us/","date":"2023-06-02T01:50:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648245.63/warc/CC-MAIN-20230602003804-20230602033804-00403.warc.gz","language_score":0.8400033116340637,"token_count":179,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__176645942","lang":"en","text":"WELCOME TO ION\nTHE FUTURE OF FULL SPECTRUM COMMERCIAL LED FIXTURES\nSay hello to the next generation of full-spectrum commercial light fixtures from ION. With products that can deliver about the same light output as a 1000W High Intensity Discharge Lamp—but reduce electrical usage and HVAC costs by nearly 35%—professional cultivators can achieve the ultimate yield and quality without breaking the bank or sacrificing sustainability.\nThe ION suite of light system utilizes GrowGeneration’s balanced spectrum and 3K Horticultural Full Phase Spectrum for ultimate growing power at an affordable price. With both LED and HID options available in a variety of watts, there’s an ideal fit to optimize each unique grow. It’s time to adapt to the future and bring your grow to the cutting edge with Ion lights!","domain":"optical_engineering"}
{"url":"http://visionwiz.net/2012/10/new-magic-finger-will-find-anything-that-your-eyes-cant-see-or-locate/","date":"2017-04-26T13:57:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121355.9/warc/CC-MAIN-20170423031201-00301-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9249909520149231,"token_count":276,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__95800034","lang":"en","text":"People often use their fingers to sense areas that they cannot see. For example, we may use our hand to search for a pen dropped between the cushions of a couch.\nBut now this kind of work can be performed easily by Magic Finger.\nMagic Finger allows users to enhance the capabilities of such probing. By viewing its real-time video feed on a handheld device, the Magic Finger becomes an extension of the user’s eyes.\nFor example, a user can look behind them, around a corner or out the window of a car by simply pointing their finger in the associated direction.\nWhat Is Magic Finger:\nMagic Finger is a thimble-like device worn on the user’s finger. It combines two optical sensors: a lower resolution, high speed sensor for tracking movement, and a higher-resolution camera for capturing detail.\nMagic Finger can identify the object that users touch, tapping different surfaces can trigger different command executions\nEasy To Use:\nMagic Finger can be affixed to the fingertip using an adjustable Velcro ring. A small plastic casing holds the components.\nThe case was designed to control the distance between the RGB camera and surface during contact.\nBest Part Is:\nMagic Finger is able to recognize textures and use the information to understand the environment, or object the user is interacting with, and perform associated contextual actions","domain":"optical_engineering"}
{"url":"https://hobbyistroadmap.com/outdoor/foraging/considerations-in-choosing-a-thermal-imaging-device-for-mushroom-hunting/","date":"2024-04-25T02:07:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296820065.92/warc/CC-MAIN-20240425000826-20240425030826-00819.warc.gz","language_score":0.8984334468841553,"token_count":2272,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__62386095","lang":"en","text":"Mushroom hunting, in the realm of outdoor fun, is a special mix of adventure and exploring nature. For fans who venture into the woods searching for hidden mushrooms, using modern technology has made a big difference. Among the many tools, thermal imaging devices are incredibly helpful for mushroom hunters. They give a much better experience than just using your eyes.\nUnderstanding Thermal Imaging Technology\nBasics of Thermal Imaging\nAt its core, thermal imaging operates on the principle of detecting infrared radiation emitted by objects based on their temperature. This is particularly relevant in the context of mushroom hunting, where these fungi often blend seamlessly with their surroundings. Unlike traditional night vision, which relies on ambient light, thermal imaging excels in total darkness or adverse weather conditions.\nMore about How Thermal Imaging Operates.\nInfrared Radiation and Heat Signatures\nUnderstanding infrared radiation is pivotal to grasp how thermal imaging unveils the hidden world of heat signatures. Everything with a temperature above absolute zero emits infrared radiation, and thermal imaging devices capture this radiation to create a visual representation. In the context of mushroom hunting, where subtle temperature variations can indicate the presence of fungi, discerning these heat signatures becomes a critical skill.\nHow Thermal Imaging Devices Capture Heat\nThermal imaging devices utilize a specialized sensor called a microbolometer to detect infrared radiation. As the radiation hits the sensor, it generates a thermogram, which is then translated into a visible image. The resulting thermal images provide a unique perspective for mushroom hunters, allowing them to spot temperature anomalies that may signify the presence of mushrooms, even in densely vegetated or dark environments.\nApplications in Outdoor Activities\nOverview of Thermal Imaging in Hunting\nWhile thermal imaging has various applications in outdoor activities, its significance in hunting cannot be overstated. For hunters, it offers a distinct advantage by detecting the heat signatures of animals, aiding in tracking and navigation. In mushroom hunting, this technology provides an additional layer of awareness, enabling enthusiasts to identify potential fungal hotspots.\nSpecific Relevance to Mushroom Hunting\nIn the specific context of mushroom hunting, thermal imaging proves invaluable. Mushrooms, being living organisms, emit heat, albeit at levels not always perceptible to the human eye. Thermal imaging unveils these subtle temperature variations, helping mushroom hunters pinpoint locations where fungi may thrive. This capability transforms the mushroom hunting experience, offering enthusiasts a tool to enhance their detection abilities in diverse environments and lighting conditions. As we delve deeper, we will explore the key features that make thermal imaging devices effective companions in the quest for elusive mushrooms.\nKey Features to Prioritize\nIn the realm of thermal imaging for mushroom hunting, several key features demand careful consideration to ensure an optimal experience. These features not only enhance the effectiveness of the device but also play a crucial role in navigating the diverse and challenging terrains synonymous with mushroom hunting.\nRange and Detection Distance\nUnderstanding the detection range of a thermal imaging device is paramount. The device’s ability to identify heat signatures at varying distances influences the overall effectiveness of mushroom hunting. In dense forests or expansive landscapes, a longer detection range becomes a valuable asset, allowing enthusiasts to scan a larger area and increase the likelihood of spotting mushrooms.\nWhy Detection Range Matters\nThe significance of detection range extends beyond mere convenience. It directly correlates with the device’s ability to unveil heat differentials in the environment. A broader detection range ensures that even subtle variations in temperature, indicative of mushroom presence, are captured, providing a comprehensive view of the surroundings.\nConsiderations for Mushroom Hunting Environments\nMushroom hunting often takes enthusiasts into diverse environments, from thick underbrush to open fields. When selecting a thermal imaging device, considerations for the specific environments where mushrooms thrive become pivotal. Devices with adjustable detection ranges or those tailored for dense foliage environments can be particularly advantageous.\nImage Resolution and Clarity\nThe resolution of thermal images directly influences the clarity with which heat signatures, including those of mushrooms, are displayed. Higher resolution allows for finer details, making it easier to identify subtle temperature variations that might escape notice with lower-resolution devices.\nImpact on Identifying Mushrooms\nIn the context of mushroom hunting, image resolution is not merely a technical specification but a practical necessity. Crisp and clear thermal images empower hunters to distinguish between similar heat signatures, ensuring that they accurately identify mushrooms amidst the surrounding flora and fauna.\nBalancing Resolution and Cost\nWhile high resolution is desirable, it often comes with a higher price tag. Finding the right balance between image clarity and cost is crucial. Enthusiasts must weigh their budget constraints against the need for enhanced resolution, ensuring that the chosen device meets their specific requirements without unnecessary financial strain.\nBattery Life and Portability\nImportance of Extended Battery Life\nExtended battery life is a fundamental consideration for any outdoor activity, and mushroom hunting is no exception. The unpredictability of hunting expeditions requires devices with reliable and long-lasting batteries to ensure uninterrupted use in the field.\nConsiderations for Lightweight and Portable Devices\nMushroom hunters navigate through various terrains, often requiring them to cover significant distances on foot. The portability of a thermal imaging device, therefore, becomes a key factor. Lightweight and compact devices are not only easier to carry but also contribute to a more comfortable and agile hunting experience.\nMushroom hunting is an outdoor pursuit that places enthusiasts in the midst of diverse and sometimes unpredictable environments. When selecting a thermal imaging device for this activity, careful consideration of environmental factors is crucial to ensure the device’s reliability and performance. Two critical aspects that demand attention are weather resistance and thermal sensitivity.\nImportance of Waterproof and Weatherproof Devices\nThe natural habitats of mushrooms span a range of climates, from damp woodlands to open fields. In these varied settings, weather conditions can shift rapidly, presenting challenges to equipment. Opting for a thermal imaging device with robust weather resistance, including waterproof and weatherproof features, is essential. Such devices can withstand rain, snow, and other adverse weather conditions, ensuring their functionality remains intact even in the face of nature’s unpredictability.\nHow Different Weather Conditions Affect Performance\nThe impact of weather on thermal imaging devices is notable. Rain or snow, for example, can obstruct the lens and affect image clarity. Devices with advanced weather-resistant features mitigate these challenges, allowing mushroom hunters to maintain their focus on the task at hand without being hindered by the elements.\nUnderstanding Sensitivity in Various Environments\nThermal sensitivity refers to a device’s ability to detect and differentiate temperature variations accurately. In mushroom hunting, where identifying subtle differences in heat signatures is crucial, understanding thermal sensitivity is paramount. Devices with higher thermal sensitivity can unveil the intricate thermal patterns associated with mushrooms, even in environments with minimal temperature differentials.\nImplications for Mushroom Hunting at Different Times\nThe thermal sensitivity of a device also holds implications for mushroom hunting at different times of the day. As ambient temperatures fluctuate, mushrooms may emit varying levels of heat. A thermal imaging device with optimal sensitivity can adapt to these changes, ensuring that enthusiasts can effectively locate mushrooms during dawn, dusk, or even in the dead of night.\nIn the realm of mushroom hunting, the effectiveness of a thermal imaging device is not solely determined by its technical capabilities; user-friendly features play a pivotal role in enhancing the overall hunting experience. Two key aspects deserving attention are the display and interface, as well as recording and sharing capabilities.\nDisplay and Interface\nChoosing the Right Display for Mushroom Hunting\nThe display of a thermal imaging device serves as the window through which mushroom hunters observe the hidden world of heat signatures. Optimal display characteristics can significantly impact the clarity of thermal images, making it easier for enthusiasts to identify mushrooms amidst their surroundings. Factors such as color rendering and resolution are crucial considerations when selecting a device that caters specifically to the unique requirements of mushroom hunting.\nIntuitive Interfaces for Easy Operation\nThe interface of a thermal imaging device is the bridge between the user and the technology. For mushroom hunters navigating through dense forests or dark environments, an intuitive interface is essential. Devices with user-friendly controls and easily navigable menus empower enthusiasts to focus on the hunt rather than grappling with complex settings. Intuitive interfaces contribute to a seamless and enjoyable user experience, particularly in the dynamic and sometimes challenging conditions of mushroom hunting.\nRecording and Sharing Capabilities\nBenefits of Recording Hunts\nThe ability to record hunting expeditions is a feature that extends beyond mere documentation—it becomes a valuable tool for improvement and analysis. Thermal imaging devices equipped with recording capabilities allow mushroom hunters to revisit their hunts, assess their strategies, and identify patterns in mushroom distribution. This feature transforms each expedition into a learning experience, contributing to the continuous refinement of hunting skills.\nConsiderations for Sharing Findings with Others\nMushroom hunting is often a communal and shared experience. Thermal imaging devices that enable the sharing of recorded findings with fellow enthusiasts, researchers, or the wider community foster a collaborative spirit. This feature not only contributes to the collective knowledge of mushroom habitats but also builds a sense of community among mushroom hunting enthusiasts.\nMushroom hunting, as a recreational pursuit, often invites enthusiasts to find a delicate balance between acquiring cutting-edge technology and adhering to budget constraints. The intersection of features and cost becomes a critical consideration in selecting an optimal thermal imaging device for this activity.\nBalancing Features and Cost\nStriking the right balance between features and cost is a central concern for mushroom hunters. While advanced features can enhance the hunting experience, they often come at an additional expense. It is essential for enthusiasts to identify the features that align with their specific needs, ensuring that the chosen device offers a practical and cost-effective solution for mushroom hunting.\nEvaluating the Return on Investment\nWhen contemplating a thermal imaging device, enthusiasts should view their purchase as an investment in the overall quality and success of their mushroom hunting endeavors. Evaluating the return on investment involves assessing how the features of a device contribute to the efficiency and enjoyment of the activity. This thoughtful evaluation ensures that the expenditure aligns with the tangible benefits derived from the device’s performance.\nFinding a Device that Fits Your Budget\nThe market for thermal imaging devices spans a range of price points, and finding a device that fits within one’s budget is a key aspect of the decision-making process. By identifying the essential features and prioritizing those that align with their budgetary constraints, mushroom hunters can make informed choices that enhance their experiences without unnecessary financial strain.\nAs the realm of mushroom hunting embraces the integration of thermal imaging technology, the considerations for selecting the right device are crucial. Enthusiasts must weigh the significance of features such as detection range, image resolution, environmental durability, user-friendly interfaces, and budget constraints. The synergy of these factors ensures an optimal and rewarding mushroom hunting experience. Thermal imaging devices not only unveil the hidden world of fungi but also contribute to a deeper understanding of the environments in which they thrive. By making informed choices, mushroom hunters can elevate their capabilities, transforming each expedition into an immersive journey of discovery and connection with the natural world.","domain":"optical_engineering"}
{"url":"https://www.printerbase.co.uk/stationery/cleaning-catering-safety/personal-protection-equipment/eye-face-protection.html","date":"2022-06-30T11:17:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103671290.43/warc/CC-MAIN-20220630092604-20220630122604-00737.warc.gz","language_score":0.8606530427932739,"token_count":190,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__186634080","lang":"en","text":"Proforce safety wraparound spectacles with scratch resistant polycarbonate lens and moulded nose piece for comfort. Features protective side shields and adjustable arms for improved fit. Conforms to EN166 1F.\n3M Tora CCS Safety Spectacles 71511-00000. Corded ear protection attachment. Perfect for workers intermittently exposed to noise. Clear polycarbonate lenses. Anti-scratch and anti-fog. Conform to EN166. Ear plugs available separately.\n3M Over Spectacles. Designed to fit over most prescription spectacles with minimal interference. They offer an excellent coverage and field of vision, combined with a good level of protection against impacts. Provides protection against UV radiation.\n3M 2890S Safety Goggles. Sealed safety goggles with polycarbonate lenses provide protection against liquids, dust, gases and vapours. Features anti scratch feature and UV protection. Ideal for construction and laboratories.","domain":"optical_engineering"}
{"url":"https://www.depsci.com/thin-film-coating-applications/aerospace-and-defense/","date":"2024-04-19T00:04:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817249.26/warc/CC-MAIN-20240418222029-20240419012029-00759.warc.gz","language_score":0.8056586980819702,"token_count":315,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__13084498","lang":"en","text":"COMBAT-TESTED THIN FILM OPTICAL COATINGS AND FILTERS FOR MILITARY SURVEILLANCE AND IMAGING\nDSI’s proprietary coating technologies produce conformal anti-reflection coated optics, tightly toleranced filters, and dense, durable windows for critical applications that perform on land, sea, and air.\nStrategic intelligence demands accurate, reliable sources of information. When it comes to critical defense applications like missile seekers, surveillance, targeting pods, laser designators, rangefinding, and IR countermeasures, there’s just no room for ambiguity.\nHigh performance imaging systems use precision optics with advanced thin film coatings, sometimes hundreds of layers thick, to boost performance with reliability and unmatched durability. DSI’s experts and specialized in- house coating capabilities produce multi-layer coatings for high performance single-wavelength, dual- wavelength, and broadband ARs and dichroic filters.\nHIGH – PERFORMANCE THIN FILM OPTICAL COATINGS THAT WITHSTAND HARSH ENVIRONMENTS:\nAR Coatings – Single Layer, High Efficiency Multi-Layer (Broadband)\nBeamsplitters – Polarizing, Non-Polarizing\nFilters – Bandpass, Notch, Edge, Patterned and Non-patterned\nDark Mirror Absorptive Coatings – High absorption/low reflectivity\nOur full suite of standard and custom coating designs and proprietary coating processes deposit extremely dense, durable coatings to tackle your toughest challenges.","domain":"optical_engineering"}
{"url":"http://ghtermpaperhyqq.frieslandvakantiebungalow.info/the-major-disadvantage-of-traditional-light-bulbs.html","date":"2018-10-24T02:04:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583517628.91/warc/CC-MAIN-20181024001232-20181024022732-00286.warc.gz","language_score":0.9573243856430054,"token_count":598,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__11203561","lang":"en","text":"The efficacy of incandescent bulbs is low which is a major disadvantage in terms of higher operating costs and more heat in the room fluorescent fluorescnet lamps generate light when an electric arc excites the gas in the tube. Led lighting is very different from other lighting sources such as incandescent bulbs and cfls key differences include the following: light source: leds are the size of a fleck of pepper, and a mix of red, green, and blue leds is typically used to make white light.\nThe primary disadvantage of using incandescent light bulbs is cost they are comparably more expensive to buy and use than cfls according to popular mechanics magazine, if the average united states household (which has 45 light bulbs) were to switch completely to 75 watt cfls, the household would save $180 annually on power.\nList of disadvantages of cfl light bulbs 1 not all of them can be used with dimmer switches if you are using dimmer switches, keep in mind that not all cfls can be used with these innovations so, make sure to check the package before using, as regular cfls can burn out quickly when used with dimmers switches 2. More economical light bulbs as our infographic shows, the differences between filament light bulbs and new-generation light bulbs are obvious the new bulbs use far less energy, which offsets the fact that they are more expensive to buy. One major disadvantage of energy-saving bulbs is their cost replacing incandescent bulbs with energy-efficient alternatives can be an expensive proposition, at least initially.\nWhat are advantages and disadvantages of fluorescent lighting fluorescent lighting is less expensive than traditional lighting, but there are also drawbacks to using fluorescent lighting when you consider that a quarter of any home's electrical consumption is done through light bulbs, the savings can add up considerably. Energy-saving light bulbs produce a similar amount of light to incandescent bulbs while using a fraction of the energy wattage figures vary from manufacturer to manufacturer, but 100-watt equivalent bulbs may use about 70 watts in the case of halogen bulbs, and about 25 watts for led and compact fluorescent light bulbs, or cfls. Disadvantages of led light bulbs perhaps the main disadvantage of leds is their cost because the technology is fairly young the initial cost to transition from conventional lighting to leds is much more than switching to cfls. What are the advantages of the new-generation light bulbs new-generation low-energy bulbs each type of new-generation light bulb also has its own advantages: incandescent halogen bulbs up to 25 % less energy than traditional light bulbs useful life of two years.\nGarages, patios, and porches are likely better suited for use with a more traditional bulb, especially if having bright light is important, as in an outdoor workshop one of the other biggest disadvantages of fluorescent lights is that they are more expensive up-front when compared with incandescent bulbs.","domain":"optical_engineering"}
{"url":"https://pioneermachinesales.com/blog/195","date":"2023-06-04T21:48:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650264.9/warc/CC-MAIN-20230604193207-20230604223207-00301.warc.gz","language_score":0.9196954369544983,"token_count":1240,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__23506377","lang":"en","text":"CO2 cutting lasers first became available in the 1980s. Back then, manufacturers saw them as game-changing because of their sheet metal applications. They could work metal to a higher degree of accuracy than ever before.\nFiber lasers are a more recent innovation and are proving to be equally revolutionary. The technology is disruptive because it is changing everything that industry experts thought was possible regarding sheet metal fabrication. These lasers are superior to CO2 lasers across multiple dimensions, including both economically and in terms of their performance.\nIn this post, we explore the key differences between fiber and CO2 laser cutting. By the end of it, you will have a clear understanding of why fiber cutting is superior across most categories.\nHow CO2 And Fiber Lasers Work\nManufacturers use both CO2 and fiber lasers to cut metal. However, there are some critical differences between them.\nCO2 lasers work by passing electrical energy through a sealed tube filled with carbon dioxide gas. As operators increase the voltage, reactions with gas particles produce a steady beam of light. When the light touches an object, such as sheet metal, it imparts heat energy to the surface, causing it to melt or vaporize, producing a cut.\nTo increase the intensity of the laser, tubes feature highly reflective mirrors. These bounce light back and forth along the length of the tube, increasing its interaction with gas and, therefore, its intensity. A final mirror then directs the laser out of the laser head, via a focusing lens, to the working material beneath. The lens directs the laser beam to the precise spot, narrowing down the focus from around 7mm to just 0.1mm.\nFiber lasers are the newest addition to modern lasers and work on similar principles as CO2 lasers. However, because the technology they use is more advanced, they offer significant advantages.\nFiber lasers depend on laser diodes to transform electricity into photons. Semiconductor materials transform electrons into photons and then “pump” them into fiber-optic cable, similar to cables used for high-speed internet. The fiber cable then uses a combination of core and cladding materials to encourage the light to fall into a uniform beam (instead of scattering all over the place). The light is then amplified in the laser cavity (a special area in the fiber core), increasing the energy level and creating a light of a specific wavelength. The laser head then shapes the beam before releasing it..\nBecause they use different technologies, fiber and CO2 lasers work differently. This, in turn, has an impact on how they perform. As you will read below, fiber lasers are generally superior.\nFiber Lasers Require Less Maintenance\nFiber lasers use a fiber-optic beam path instead of a conventional mirrored beam path. As such, there is no need for maintenance such as mirror or lens cleaning, bellows checks, and beam alignments. CO2 lasers, on the other hand, require regular maintenance tasks to keep them fully operational.\nFiber Lasers Offer Greater Power Density\nThanks to fiber optic technology, fiber lasers are better able to focus a given level of energy on a target, increasing power density at the focal point compared to a regular laser. Even low-powered 2kW lasers have up to five times the power density of 4kW CO2 lasers, reducing energy consumption. They may also have superior absorption characteristics due to the shorter light wavelengths they emit, depending on the material being worked. Combined, the higher energy density and improved wavelength absorption help to increase cutting speeds by around five times compared to similarly-powered CO2 lasers in materials that are less than half an inch thick.\nFiber Lasers Are Sealed At The Power Source\nBecause of the way they work, fiber lasers are considered solid-state lasers. Fiber cabling connects to the diode source without any gaseous or liquid components (or moving parts).\nAs with other solid-state devices, fiber lasers are considerably more reliable and durable. Light passes from the diodes to the cutting head without the need for any moving components.\nCO2 lasers, on the other hand, require a gas-filled tube with mirrors at either end. One mirror is fully reflective while the other lets a small percentage of light through. These mirrors then guide the light to the directed cutting area.\nThis specification adds complexity and more points of failure to the laser. Mirrors and lenses require careful maintenance so that they continue to perform to acceptable standards. Fiber lasers require no such care.\nFiber Lasers Are More Reliable\nLeaking gas is a common problem in CO2 laser tubes. Seals around the tube do not always prevent gas from escaping, particularly over longer time frames. Because of this, many devices come with costly laser gas detectors to warn operators when gas is leaking from the tube. If gas levels go too low, manufacturers can swap out the tube for a new one before it affects manufacturing processes.\nHowever, even with proper monitoring, a CO2 tube might only last three months to three years. That’s because regular use causes the CO2 inside the tube to eventually break down into carbon monoxide and oxygen, requiring replacement. Therefore, CO2 lasers are less reliable over time.\nFiber Lasers Do Not Require Warm-Up Time\nCO2 lasers require about 10 minutes to warm up before they can begin performing optimal cutting operations. Fiber lasers, on the other hand, do not require any warm-up time, allowing operators to use them immediately.\nFiber Lasers Offer Better Beam Shape\nLastly, fiber optic lasers often offer beam-shaping technology. Operators can adjust the beam’s profile depending on the material they want to cut. Furthermore, because the beam passes through a fiber optic cable, it is considerably smaller and more focused than a CO2 beam, improving density and performance when paired with assisting gases.\nGet Fiber Laser Cutters Today\nIf you’d like to learn more about the benefits of fiber laser cutters for your organization, get in touch with our team.","domain":"optical_engineering"}
{"url":"http://mechanicalsite.com/293/optical-properties-of-materials?show=294","date":"2019-09-18T11:23:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573284.48/warc/CC-MAIN-20190918110932-20190918132932-00537.warc.gz","language_score":0.9130036234855652,"token_count":1207,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__148267102","lang":"en","text":"The 20th century, and particularly the latter part of it, can truly be called the Age of Optical Materials. This appellation is warranted in view of the ubiquitous role of optical materials and devices in some of the most important arenas of human activity, for example, fibers for optical communications; lasers and imaging displays for medical applications; optical coatings and devices (solar cells) for energy conservation; lenses, filters, and optically active materials for observing, detecting, displaying, and recording images in microscopy, photography, media, and information applications. We certainly have come a very long way when we consider that human involvement with optical materials and properties, prior to the past few centuries, was limited largely to aesthetic purposes, for example, mirrors, glazes for pottery, colored glass, pigments for paints, jewelry. But this does not even begin to accurately convey the dramatic progress that has been made.\nOptical materials can be broadly divided into two categories: passive and active. The active category includes those materials that exhibit special optical properties in response to electrical, magnetic, mechanical, optical, thermal, and other stimuli and interactions. Examples include electro-optical devices such as lasers, light-emitting diodes, and photodiodes, as well as magneto-optical recording media, luminescent materials, polymer photoresists, and Hquid crystal displays. Passive optical materials encompass everything else, including inactive, active materials. For example, silicon is active in a solar cell but passive when used in optical coatings. In this chapter examples of both passive and active optical properties are treated.\nAll classes of engineering materials—metals, ceramics, semiconductors, and polymers—have representatives with interesting optical properties. In many of the modern optical applications, thin-film materials play a critical role and an introduction to this subject is therefore offered.\nThe unifying concept that embraces all optical properties is the interaction of electromagnetic radiation with the electrons of the material. On this basis, optical properties are interpretable in terms of the electronic structure as influenced by atomic structure and bonding. Therefore, aspects of both quantum mechanics and electromagnetic wave theory are required to account for a fundamental understanding of optical phenomena. For the engineering applications we are concerned with, however, simple equations distilled from elementary physics are all that is necessary, and these will be offered without proof.\nIn conducting solids like metals and semiconductors, a great number of electrons are available to interact with electromagnetic radiation. For example, metals contain a large density of empty, closely spaced electron states above the Fermi level. Incident photons over a broad wavelength range are readily absorbed by conduction band electrons.\nThese excited electrons occupy higher energy levels where they may undergo collisions with lattice atoms. The extra energy is dissipated through lattice vibrations that heat the metal, and we speak of absorption. Alternately, if the probability of colliding with an ion is small, the electron will emit a photon as it drops back to a lower energy level. This is the origin of the strongly reflected beam exhibited by metals in the visible and infrared region. When the time it takes for electrons to become excited and deexcited is short compared with the period of the incident electromagnetic wave, high reflective can be anticipated. Physically, the electrons are able to respond quickly enough to establish an electrical shield against the (more slowly) oscillating electric field associated with the incident wave, preventing it from penetrating. These conditions are well obeyed for metals in the infrared.\nOf the nearly 80 metallic elements only gold and copper (and alloys of these metals) are significantly colored. All the other elements are white or gray, although in portions of the visible spectrum some metals have a slight tinge of color. Aluminum and chromium have a faint bluish, and nickel a weak yellowish, coloration. The overwhelming majority of metals reflect all portions of the visible spectrum and thus appear white. Gold and copper preferentially absorb in the green region, and these metals respectively assume the color of the reflected yellow and red light.\nFigure: Reflectance of gold, silver, copper, aluminum, rhodium, and platinum mirror coatings as a function of wavelength.\nwhere the reflectivity of a number of metals is displayed as a function of incident wavelength. A noteworthy feature of the optical response is the decreased reflectivity in the ultraviolet and, in particular, the abrupt absorption edge exhibited in Au, Cu, and Ag. The absorption now is not of the free carrier, intraband type discussed previously, but is instead due to interband electron transitions (e.g., a 3d to 4s transition in Cu).\nIn semiconductors it is somewhat startling to note such a strong variation in the absorption coefficient with wavelength as that indicated in Fig. 13-5. The several orders of magnitude change in a at the wavelength corresponding to the energy band gap has important implications in semiconductor optoelectronic devices. By now we are all familiar with the important interband transition that occurs in semiconductors when electron-hole pairs are created. If the incident wavelength has a higher energy associated with it than the energy band gap, electrons can successfully negotiate this interband transition.\nThe critical wavelength, R c, required is given by equation, namely, (um) 1.24/ Eg (eV). In the case of GaAs, where Eg — 1.43 eV, k c — 0.87 gm. Photons of shorter wavelength (with higher energy than E ) are then strongly absorbed, generating free electrons that occupy excited levels in the continuum of conduc- tion band states. Semiconductors resemble metals then and are highly reflective. Photons with longer wavelengths than k c (with lower energy than E g) are not absorbed. In this (infrared) range semiconductors are transparent because mechanisms no longer exist to excite transitions across the band gap.","domain":"optical_engineering"}
{"url":"https://price-tracker.co/price-drops/digital-cameras?page=10","date":"2022-12-04T03:11:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710953.78/warc/CC-MAIN-20221204004054-20221204034054-00159.warc.gz","language_score":0.8700544238090515,"token_count":224,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__301265954","lang":"en","text":"Amazon price Last: £1,083.99, Highest: £1,088.00, Lowest: £1,045.90\n3rd party new price Last: £1,305.00, Highest: £1,398.00, Lowest: £1,009.00\n3rd party used price Last: £1,262.00, Highest: £1,262.00, Lowest: £849.99\nWIDE ZOOM RANGE: ZEISS Vario-Sonnar T* 24-200 mm F2.8-4.5 high-resolution zoom lens\nBREATHTAKING IMAGE QUALITY: The large 1.0-type image sensor has a resolution of 20.1 megapixels,with back-illuminated technology achieve a wide sensitivity range\nFAST AND PRECISE AUTOFOCUS: Inherits Alpha 9-class features of up to 60times/sec AF/AE calculation, rely on 0.02s AF, Real Time tracking and Eye AF to keep your subject sharp ...","domain":"optical_engineering"}
{"url":"https://www.artandobject.com/news/developing-magic-unlocking-secrets-darkrooms","date":"2024-02-27T19:46:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00235.warc.gz","language_score":0.9452648162841797,"token_count":283,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__182838183","lang":"en","text":"For a functioning darkroom, a few elements are necessary: a safelight (a light source, usually red, that doesn’t interfere with light-sensitive materials), an enlarger (the machine that projects an image onto the paper), the chemistry (the solutions to develop, stop, and fix an image on paper), photographic paper, and running water. In a color darkroom, there is no light source—photographic paper is sensitive to all the colors of the light spectrum—so the developing and printing processes are done in total darkness. Once a film roll has been developed in a film canister, washed, and dried, photographs are ready to be printed.\nIn order to print a photograph, the film roll is placed in the negative carrier inside the enlarger. The light from the enlarger projects the chosen image onto photo-sensitive photographic paper. A timer controls the duration of this exposure. After the paper has been exposed to light, it is submerged in three solutions. The first is the developer which reveals, in a 90-second span, the image on the paper. The paper is then bathed in a stop solution that, as the name suggests, stops the developing process. Lastly, the now-developed photograph is immersed in the fix, which secures the image onto the paper. After these three steps, the photographs are washed in running water and then hung to dry.","domain":"optical_engineering"}
{"url":"https://www.informaticatraining.in/blog/Jun_7202.html","date":"2022-07-06T18:40:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104676086.90/warc/CC-MAIN-20220706182237-20220706212237-00205.warc.gz","language_score":0.8027008771896362,"token_count":1037,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__174372648","lang":"en","text":"Free shuttle to visit the factory\nResin lens CR Rough Diamond grinding wheels for TOPCON.Cheap Abrasive Tools, Buy Quality Tools Directly from China SuppliersResin lens CR Rough Diamond grinding wheels for TOPCON ALE 5100 SG Auto eyeglass grinding machine,lens edger Enjoy Free Shipping Worldwide Limited Time Sale Easy Return.\nOPTICAL LENS EDGE CUTTING GRINDING AND POLISHING.Warranty - 3 Months Features - 1. Plastic Body Grinding Machine With Light 2. Wheel Size 125 X 25 X 16 In Mm 3. 3 In 1 Machine glass,crampvgroove\nHow eyeglass lens is made material production process.The machine grinds each lens to its proper shape and places a bevel around the edge of the lens so that the lens will fit the eyeglass frames. Water flows over the lens throughout this process. 10 If the lenses require additional grinding, the process is done by hand using a mounted power grinder.\nLens Grinding and Polishing Machines Market Analysis.Major players in the Lens Grinding and Polishing Machines market are profiled with company overview, financial overview, product portfolios, recent developments, and strengths and weaknesses....\nLens Grinding and Polishing Machines Market Analysis 2021.Major players in the Lens Grinding and Polishing Machines market are profiled with company overview, financial overview, product portfolios, recent developments, and strengths and weaknesses.... Lens Grinding and Polishing Machines Market Analysis 2021 to 2027 Decisive Approach, Remarkable Growth and Countless Market Share With Future Prospects -\nPROMA MACHINERY CORP LTD CNC Cylindrical Roll.CNC Cylindrical Roll Grinder The spindle is made by Ni-Cr-Mo alloy steel with precise grinding Which was Installed into hydrodynamic bearing to get precise rotary amp non-wear performance. Grinding Machine We are specialzed in manufacturing Grinding Machine.\nGrinding and Polishing ASM International.An automatic grinding and polishing machine is shown in Fig. 4.1. Automatic grinding methodsteps are 1. Symmetrically load three to six mounted specimens into the specimen holder of an automatic grinding-polishing machine, with the at sur-face of the ceramic section downward. Most manufacturers provide a\nEyeglass Lens Grinding Machine Market Size Growth Share.Global Eyeglass Lens Grinding Machine Market report offers insightful analysis of technological advancements, effective sales patterns and research methodologies for top key players. It...\nHesh Store.Hesh Opto Lab Private Limited. No. 141, Broadway High Road, Parrys, Chennai - 600108. India 91 7010366206 9884052555 . Email heshstorebhavingmail.com\n220V Glasses Polishing Machine Manual Lens Grinding.Find many great new amp used options and get the best deals for 220V Glasses Polishing Machine Manual Lens Grinding Tool Plisher Buffer Machine at the\nAn Introduction to the Optics Manufacturing Process.Oct 31, 2008 Before the lens undergoes further grinding, the lens must be blocked, or mounted, to begin the process. Blocking involves mounting lenses onto a convex or concave surface inverse of the tool being used with pitch or wax. A lens can be blocked individually Figure 3a, but more often, many lenses with the same radii are mounted on one surface\ncr lens grinding machines.Optical Glass CR Lens Edge Grinding Cutting Machine -SKE-AHE Rs 22,500 Piece 4.15 46Machines are availabe with diffrant sizestypes diamond wheels and colours body. ske-glass edge grinding machine is generaly with 125 x 16 x 3 mm auto standerd diamond wheel. also we are manufacture machines with 150 x 16 x 3 mm diamond wheels and types of ...\nOptical Automatic Lens Edger GLCR Lens Grinding Machine.SJG-5100 Optical Automatic Glasses Lens Edger GLCR Lens Grinding Machine 110V Y. 1 x SJG-5100 Optical Automatic Glasses Lens Edger. Grinding clamping force 0.45-1.10MPa. Machine weight48Kg. Wheel working line speed 16.7ms.\nCNC Optical Grinding Machines OptiPro.SXL 500 5-Axis Lens Grinding Machine 10-500 mm Optics The SXL 500 is a 5-Axis CNC bridge style optical grinding platform can generate precision optical surfaces up to 500mm, including spheres, aspheres, freeform optics, and more.\noptical grinding machine optical grinding machine.China full automatic optical lens edger grinding cutting machine for Glass CR lenses SJG6100. 950.00-1,050.00 Set. 1 Set Min. Order CN Danyang Huasu Optical Co., Ltd. 14 YRS. 4.9 4 Contact Supplier. Fast Grind 2200 System Optical Lens Surfacing Generator Machine. 50,000.00-100,000.00 Piece.","domain":"optical_engineering"}
{"url":"https://support.fieldpiece.com/products/detail/atir3-infrared-temperature-accessory-head/meter-accessory-heads/","date":"2023-12-08T23:17:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100779.51/warc/CC-MAIN-20231208212357-20231209002357-00780.warc.gz","language_score":0.8958595991134644,"token_count":180,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__293810233","lang":"en","text":"The Fieldpiece Non-contact Infrared Temperature Accessory with Laser Sight, model ATIR3, collects infrared energy (IR) and converts it to a mVDC signal that is proportional to the temperature being measured. The temperature measured is the average of all the temperatures in the 8:1 cone of viewability. The closer you are to the target, the smaller the area measured. The further away, the larger the area. The digital, non-contact ATIR3 converts the Fieldpiece “Stick” series meter, or electronic handle to a one-piece infrared, or IR, thermometer.\nDesigned for HVACR professionals, the Non-contact Infrared Temperature Accessory with Laser Sight, model ATIR3, measures infrared energy in it’s cone of view and converts it into temperature readings on your meter using the mVDC scale.","domain":"optical_engineering"}
{"url":"https://www.materianova.be/en/our-projects/captindoor-4/","date":"2024-04-19T12:44:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00493.warc.gz","language_score":0.8157160878181458,"token_count":195,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__69142828","lang":"en","text":"- Start of the project : 01-11-12\n- End of project : 30-11-14\nSensors for the measurement of indoor air VOC pollution.\nThe aim of the project is to develop a VOC (formaldehyde) sensor for monitoring the quality of indoor air in industrial or domestic environments, thus enabling passive and active preventive measures to be taken. The sensor will be designed so that it can be purely passive and provide a visual signal or generate an electrical signal.\nThe deliverable consists of the development of VOC (and more specifically formaldehyde) sensors for the measurement of indoor air pollution.\nThis will provide a simple, fast and inexpensive formaldehyde concentration measurement system to avoid the systematic use of more cumbersome and expensive laboratory analyses.\nObjectives and missions of Materia Nova\nWithin the consortium, Materia Nova carried out the development of the sensitive layer and the characterization of the sensor.","domain":"optical_engineering"}
{"url":"http://www.moiz.co.uk/tag/laser","date":"2013-05-23T08:21:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703035278/warc/CC-MAIN-20130516111715-00068-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9262518286705017,"token_count":773,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__174790312","lang":"en","text":"Would you pay £4,000+ for the best TV ever? Mitsubishi is hoping so, but just can’t make up its mind whether to launch its Home Cinema Laser Display in Europe. We do hope it does.Our extended demo with this very special display proved one thing: rear projection TVs are brilliant, and – thanks to lasers – approaching a position where the achievable size and, crucially, picture quality advantages over both plasma and LCD (and that includes LED backlit variants) are significant enough to attract the high rollers after a slice movie perfection.\nWe knew this would happen. Just a few [...]\nIf you own an Unmanned Aerial Vehicle (UAV), here’s piece of advice: don’t fly it near San Nicholas Island, California, or it could be blasted out of the sky – by a laser. Two such vehicles were successfully shot down there on May 24th by a US Navy laser weapon. According to the official press release, this marks “the first detect-thru-engage laser shoot-down of a threat representative target in an over-the-water, combat representative scenario.”\nMembers of the Naval Sea Systems Command (NAVSEA) utilized a laser shot through a beam director on a KINETO tracking mount, controlled [...]\nA collaboration between Fujitsu and the University of Tokyo achieved a record 25Gbps data communication link using quantum dot laser, a low-cost technology that can reliably handle high-speed data transmissions while consuming minimal power. With good performance and wide margins for further improvement, this development paves the way to the next generation of high-speed Ethernet data communications, which will see a tenfold increase in transfer speed.\nAs the video sharing and cloud computing phenomena keep inflating our need for speed, engineers urgently need solutions to keep pace with [...]\nThis Sunday will mark the 50th anniversary of the laser. The world’s first functional laser sent out its initial pulses on May 16th back in 1960, where Theodore Maiman (pictured above), showed off the technology at the Hughes Research Laboratories. While Maiman is known as the father of the laser for being the first to realize one, he actually wasn’t awarded the patent for the technology — that went to Charles Townes and Arthur Schawlow of Bell Labs who, in 1958, published a paper detailing the work they themselves did on realizing a working laser without having built one.\nThe laser [...]\nHats off to Russian designer and crazy keyboard creator Art Lebedev: He’s created a clock unlike any other. Reflectius is an ingenious design concept that uses one laser and 60 rotating mirrors, all reflecting from a single laser beam into the shapes of numbers. Brilliant.\nThe clock’s case, which Lebedev calls “a complex triangulated surface that reminds of the complicated trajectory the beam of light travels in no time,” is just as inventive as the laser paraphernalia within.\nWill there be a tiny bit of smoke wafting among these mirrors, making those laser beams show [...]\nBoeing straight-up stepped out of our dreams and into our hearts with its 747-mounted airborne laser designed to shoot down ballistic missiles. A project we once feared to be dead, not only is the airborne laser very much alive, but now there’s even a video of the whole thing.\nFrom our previous coverage:\nFor the first time ever, an airborne laser weapon mounted aboard a Boeing 747-400F blew up a sea-launched liquid-fueled ballistic missile. The light-speed laser beam shot “directed energy” from the Airborne Laser Testbed (ALTB), consisting of a Northrop Grumman higher-energy [...]","domain":"optical_engineering"}
{"url":"http://www.whiterosecentre.com/specsavers/","date":"2022-09-29T13:20:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335355.2/warc/CC-MAIN-20220929131813-20220929161813-00581.warc.gz","language_score":0.9015065431594849,"token_count":219,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__19634931","lang":"en","text":"Tel: 01745 343200\nFor the past nine years it has been voted Britain’s most-trusted brand of opticians by Reader’s Digest. The current straplines ‘Number One Choice For Eye Tests’ and ‘Number One Choice For Contact Lenses’ reflect its position as market leader. Specsavers’ range includes Tommy Hilfiger, Red or Dead, fcuk, Bench, Quiksilver, Roxy, Jasper Conran and Missoni, as well as the market leading Osiris designer brand. Our frames are developed using the latest innovative manufacturing and design techniques from the highest quality components and raw materials available. The full range of over 2,000 size and colour options is structured around a comprehensive features and benefits pricing structure, starting from £25 through to £169. Our own lens manufacturing laboratories – three of the largest in Europe – supply the latest high-tech lenses in volume at the lowest possible cost. All Specsavers frames come with free Single Vision Pentax lenses as standard.\nComments are closed.","domain":"optical_engineering"}
{"url":"https://www.trafficsafetyservice.com/product/center-mount-round-reflector/","date":"2023-09-26T20:06:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510219.5/warc/CC-MAIN-20230926175325-20230926205325-00243.warc.gz","language_score":0.9127094149589539,"token_count":226,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__211553666","lang":"en","text":"Center Mount Round Reflector, 3.25″\nThese center mount round reflectors are mounted to objects to make them highly visible to drivers\n- Can be mounted to a wide variety of objects to make them highly visible to drivers, such as mail boxes and bridge abutments.\n- Can also be mounted to light gauge posts to help visibility along dimly lit roadways\n- Additional information\n- Reviews (0)\n- Excellent visibility in bad weather (rain, fog, sleet or snow)\n- Sealed against dirt and moisture\n- Excellent visibility, due to the unique 6-point prism design, gives motorists an extra margin of safety even in inclement weather.\n- Smooth as glass exterior makes the reflector self-cleaning. Interior prismatic surfaces are completely sealed against the elements for long-lasting brightness.\n|Dimensions||3.5 × 3.5 × 1 in|\nOrange, White, Blue, Yellow, Red","domain":"optical_engineering"}
{"url":"https://www.tripdatabase.com/doc/613509-How-to-measure-slab-off-and-reverse-slab-prism-in-spectacle-lenses-","date":"2017-02-19T12:20:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501169769.33/warc/CC-MAIN-20170219104609-00410-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9094786047935486,"token_count":255,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__222884683","lang":"en","text":"Hi, your search found this article for you on Trip:\nHow to measure slab-off and reverse slab prism in spectacle lenses.\nJAAPOS - Journal of the American Association for Pediatric Ophthalmology and Strabismus, 2007\nfirstname.lastname@example.org It is well known that new spectacle lenses for the correction of anisometropia can induce diplopia with reading.\nThe difference in the powers of the lenses induces a net prismatic effect that can cause double vision through off-center areas of the lenses.\nThis is particularly bothersome when patients try to read, often noting vertical double vision in attempted downgaze, especially through multifocal add segments.\nThis induced prismatic effect can be compensated at one level of downgaze by the use of slab-off or reverse slab prism.\nUnfortunately, determining the amount of slab-off prism already incorporated into spectacle lenses is nonintuitive and inconvenient.\nThis usually requires the use of a lens clock, which is not widely accessible to many ophthalmology practices.\nA simple technique, described in the past but poorly known, is illustrated here for quickly measuring slab-off and reverse slab prism prescription lenses in the clinic with a common manual lens meter.","domain":"optical_engineering"}
{"url":"https://bh.ambafrance.org/Gerard-Mourou-receives-Nobel-Prize-in-Physics-2018","date":"2019-01-23T23:56:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584431529.98/warc/CC-MAIN-20190123234228-20190124020228-00171.warc.gz","language_score":0.9489819407463074,"token_count":230,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__45311798","lang":"en","text":"Three scientists have been awarded the 2018 Nobel Prize in physics for creating groundbreaking tools from beams of light.\nArthur Ashkin won this esteemed prize, for his development of “optical tweezers”, technology that allows scientists to grab atoms, viruses and bacteria in finger-like laser-beams.\nGérard Mourou, and Donna Strickland, each receive a quarter of the prize for work that paved the way for the shortest, most intense laser beams ever created. Their technique named \"chirped pulse amplification\".\nThe amplification technique of the Chirped Pulse Amplification (CPA) lasers was developed a little more than 30 years ago by Gérard Mourou and Donna Strickland, who was his student at the time, the technique creates ultrashort, intense bursts of laser light by stretching, amplifying and finally recompressing the light waves. Adapted to the medical field, the (CPA) technique has led to new advances in the field of refractive surgery of the eye and cataracts. \"The inventions that are honored this year have revolutionized the physics of lasers\".","domain":"optical_engineering"}
{"url":"http://www.kashui.com/v2.2/Eng/newBizOpt_plasmaLighting.php","date":"2020-02-29T10:40:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875148850.96/warc/CC-MAIN-20200229083813-20200229113813-00226.warc.gz","language_score":0.9035125970840454,"token_count":176,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__81809692","lang":"en","text":"New Business Starts From Plasma Lighting\nPlasma lighting is a high lumen energy saving lighting. It is fit for different kind of applications such as municipal, sports facilities, roadway, and green house usage. The lumens of one plasma light source is equal to 100 LED light source. The characteristics of plasma lighting include low energy usage, long life, high color rendering index, even light distribution, etc. It can substitute traditional metal high intensity discharge lamps, high pressure sodium lamp and new model plasma lighting fixtures etc. In view of the upcoming trend of energy saving, The Group has identified this new opportunity by combining the plasma light technology together with the magnesium material which is light with better heat dissipation performance. A new company Alphalite is established to be responsible for all the design, manufacturing and sales of Plasma lighting fixture, that uplift the corporate business to another new arena.","domain":"optical_engineering"}
{"url":"http://www.metrodove.com/benefits-and-uses-of-led-lights-why-you-must-switch-to-led-lighting/","date":"2019-06-24T17:28:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999620.99/warc/CC-MAIN-20190624171058-20190624193058-00170.warc.gz","language_score":0.9469864964485168,"token_count":367,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__195810313","lang":"en","text":"The light-emitting diode (LED) is one of today’s most energy-efficient and rapidly-developing lighting technologies. Quality LED light bulbs last longer, are more durable, and offer comparable or better light quality than other types of lighting.\nLED light bulbs are extremely energy efficient and long-lasting; an LED bulb can cut energy consumption by over 80% when compared to conventional light bulbs and can last up to 25% longer. A US Department of Energy study found that LEDs installed in 2012 saved around $675 million in energy costs. You can help by swapping an LED bulb for any regular light bulb at home.\nLEDs are notable for being extremely long-lasting products. Many LEDs have a rated life of up to 50,000 hours. This is approximately 50 times longer than a typical incandescent, 20-25 times longer than a typical halogen, and 8-10 times longer than a typical CFL. Used 12 hours a day, a 50,000 bulb will last more than 11 years. Used 8 hours a day, it will last 17 years.\nLEDs give out their light almost instantly when you flick the light switch, so you don’t have to put up with dim light while they get going.\nLEDs emit very little heat. In comparison, incandescent bulbs release 90% of their energy as heat and CFLs release about 80% of their energy as heat.\nLEDs are made with epoxy lenses, not glass, and are much more resistant to breakage.\nIf every American replaced one conventional light bulb with an LED, the energy savings could light an estimated 2.5 million homes.That’s the equivalent to the greenhouse gas emissions of 800,000 cars. For more information on the benefits of using LED bulbs.","domain":"optical_engineering"}
{"url":"http://metroyouthorchestra.com/category/perth/","date":"2015-10-08T16:17:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-40/segments/1443737896527.58/warc/CC-MAIN-20151001221816-00035-ip-10-137-6-227.ec2.internal.warc.gz","language_score":0.9369428753852844,"token_count":504,"dump":"CC-MAIN-2015-40","global_id":"webtext-fineweb__CC-MAIN-2015-40__0__13397182","lang":"en","text":"Spectrally selective solar window films are different than traditional window films. Traditional window films rely on dyed products or highly reflective aluminum coatings that are either vapor coated or sputtered on clear polyester. Traditional automotive films are examples of dyed films. “Silver 20″ are traditional commercial films that have the “mirror effect.” Spectrally selective films are clear, yet reject the heat before it can enter a home, office or automobile.\nSpectrally select films are a great way to keep the light but reject the heat. Be green and conserve energy with premium architectural window film.\nSolar film Perth has been available in the Perth since the 1960’s.Since then advancements in manufacturing processes have seen the product improve both in performance and in durability. Most films are protected by a “hard” scratch proof coating which means that the expected lifespan of the film will usually exceed ten years and can withstand the same regular cleaning and maintenance processes of ordinary glass.\nThe latest innovation in Solar Control films is the introduction of nanotechnology which allows multiple layers of different precious metals to be coated onto the base polyester film. These films offer a high level of heat gain reduction with the benefit of reducing the interior light levels by very small amounts.\nSolar window film is usually subject to less critical testing. However, standards are in place to maintain a level of quality in the industry. The ANSI Standards ASTM E903 and ASTM D1044-93 relate to the solar/UV transmission properties and abrasion resistance, respectively. The larger window film manufacturers use these standards to guarantee the quality of their raw materials and finished products.\nWindow films filter out over 99% of UV Rays to 380 nm – helping to reduce the main contributor to fading. However, additional factors such as Solar Heat and Visible Light also contribute to fading. Therefore the greatest protection from fading is offered by tinted or metalized window films that reject large levels of heat and visible light – in addition to UV.\nEven in winter solar heat can pour in through unprotected windows, causing uneven temperatures and hotspots creating a constant battle for air conditioning systems. Solar Control window film is designed to reduce the amount of solar heat transmitted by increasing reflection and absorption through glazing. Typical colored or tinted films work primarily through increased absorption thus absorbing the solar energy into the glass, thus reducing the direct heat transmission into a room. These films only offer marginal performance when compared to metalized or reflective films.","domain":"optical_engineering"}
{"url":"http://kitautomanual.com/sigma-18-35mm-f-1-8-dc-hsm-art-lens-for-nikon-filter-kit-accessory-kit.htm","date":"2021-10-24T22:18:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587606.8/warc/CC-MAIN-20211024204628-20211024234628-00311.warc.gz","language_score":0.9189832806587219,"token_count":1288,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__74397884","lang":"en","text":"Sigma 18-35mm f/1.8 DC HSM Art Lens for Nikon + Filter Kit + Accessory kit. HTML Layout using Tables, DIV, SPAN. A large-aperture fixed focal length lens is great for achieving expressive bokeh effects and enjoying ultra-high optical performance. On the other hand, photographers often need to change the angle of view to properly capture the scene that presents itself.\nTaking on the challenge of creating the world's first wide-aperture lens to offer an aperture of F1.8 throughout the zoom range, Sigma has succeeded in creating a zoom lens that offers the same high optical performance of a fixed focal length lens. These outstanding performance characteristics are especially apparent in an APS-C format camera, since it has a slightly greater depth of focus than a full-frame camera. This is a revolutionary lens that overturns preconceptions while expanding the range of photographic expression. Designed with a focus on sophisticated optical performance and tremendous expressive power, Art line of lenses delivers top-level image quality.\nWith unsurpassed expressive performance, these lenses reach the high standards demanded by photographers with an artistic, creative inclination. Along with landscapes, portraits, still-life, close-up and casual snaps, they're perfect for the kind of photography that unleashes the inner artist.\nIdeal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies, underwater shots and many other scenes. Sigma 18-35mm f/1.8 DC HSM Art Lens for Nikon. 72mm 3 Piece Filter Kit. 72mm Multi-Coated 3 Piece Filter Kit (UV-CPL-FLD).\n2-In-1 Lens Cleaning Pen (Black). These filters, made from the finest solid optical glass, are ground and polished to the most practical thinness.\nIn addition, they are heat-treated to avoid any distortion or focal shift, and each filter is subject to strict tests in order to ensure a flawless, even surface, which is essential to a quality filter and exceptional photographs. Ideal for protecting your valuable lens from scratches and dust. UV filter absorbs ultraviolet rays to produce crisp, clear photographs. Polarizing filter eliminates reflections from non-metallic surfaces, and increases contrast and color saturation.FLD filter helps balance light in outdoor situations or where fluorescent lights are used. Lens filters are translucent glass placed in front of a camera lens to alter or adjust the light entering the camera and to protect the camera lens. Lens filters improve photographs by giving photographers control over light and allowing them to emphasize the features of a scene that they consider most important. This particular filter kit is a combination of the three essential filters no photographer should be without. Filters are one of the least expensive accessories you can use to make big changes in the way your pictures look. UV Filters A UV filter is used to reduce UV rays from entering the lens and striking the film. Modern lenses often have UV protection built into them as well as digital sensors, however, UV filters are commonly used to help protect the surface of the lens from scratches, smudges, dirt and other hazards. Circular Polarizing Filters No camera bag should be without a polarizing filter, whether you shoot digital, color film, color slide, or black and white. A polarizer is different than most filters in that it is composed of two pieces of glass, mounted independently inside a round frame so that one can be rotated relative to the other. As it is rotated, it increasingly cuts out glare and haze. With an SLR, you can actually observe this change through the viewfinder. Polarizers reduce glare from water, glass, or any non-metallic surface. You can also use a polarizer filter to darken blue skies. FLD Filters A FLD filter (fluorescent light correction) provides the perfect solution for obtaining pleasing skin tones and correct color while shooting without a flash under fluorescent lighting. This filter gives true-to-life color rendition by removing the harsh yellow-green cast ordinarily resulting from fluorescent bulbs. When shooting under natural light, a fluorescent filter dramatically increases color saturation of subjects such as sunrises and sunsets. A UV filter serves to protect your lens from all dust, dirt, scratches and fingerprints. It also absorbs the Ultraviolet rays of the sun thereby reducing or eliminating distortion. Digital Concepts filters are manufactured from the finest solid optical glass, and are heat treated and multi-coated to ensure optimum picture quality. This Dust Blower is Perfect for keeping your camera clean. Excellent way to remove dust off sensitive camera parts without physical contact. Safe for lenses, including multi-Coated Surfaces. High Quality 2-in1 Lens Cleaning Pen. Works with all types of cameras, (digital and film), as well as binoculars, telescopes, SLR lenses and other optical products. The small pen style design easily fits in your pocket or camera bag. It features a retractable brush on one end and a spray cleaner on the other end.\nIt also has a convenient clip to keep it in your pocket. The perfect way to keep track of your lens caps. A small button tapes onto the front of your lens cap and the elastic loop goes around the barrell of your lens so that your lens cap always remains attached, hanging from the lens. Never lose a lens cap again! Most efficient way to clean all optical surfaces such as your camera's lens, LCD viewfinder, filters and auxiliary lenses.Works with all types of cameras, as well as binoculars, telescopes, SLR lenses, eyeglasses & sunglasses. There will be no price protection, if the price of an item changes after purchasing.\nDo not deface original factory cartons or packaging in any manner. We will not accept a return if the goods are not in its original condition.\nDo not discard box, until equipment has not been tested. The item \"Sigma 18-35mm f/1.8 DC HSM Art Lens for Nikon + Filter Kit + Accessory kit\" is in sale since Thursday, April 26, 2018. This item is in the category \"Cameras & Photo\\Lenses & Filters\\Lenses\".\nThe seller is \"redtagcamera\" and is located in Brooklyn, New York. This item can be shipped worldwide.","domain":"optical_engineering"}
{"url":"https://eventsc.pl/en.naswietlacze_4b5.html","date":"2019-08-22T00:59:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027316555.4/warc/CC-MAIN-20190822000659-20190822022659-00179.warc.gz","language_score":0.9068641066551208,"token_count":214,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__188414933","lang":"en","text":"A waterproof outdoor floodlight with popular and valued characteristics, based on a LED light source. The device is equipped with 44 diodes with a power of 10 W each. Thanks to its great power, this device will work not only on stages, but also as lighting for buildings and large spaces. The IP65 resistance class allows to use the Atom R LED in all weather conditions. Available in two connection variants: Powercon + XLR IP65 or IP65 connections.\nBasic parameters of the device below:\nPower: 44x10W RGBW\nSource of light: LED (OSRAM)\nLifespan: up to 50,000 hours\nModes of operation: DMX512, Sound Active, Master/Slave\nBeam angle: 45°\nDMX: 4, 8 channels\nDimmer: linear 0-100%\nRange of motion: 540/270 pan/tilt\nResistance class: IP65\nWeight: 4 kg\nWe invite you to get to know our full range of floodlights.","domain":"optical_engineering"}
{"url":"https://roadcyclinguk.com/gear/bbb-launch-impulse-glasses.html","date":"2023-02-06T10:25:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500334.35/warc/CC-MAIN-20230206082428-20230206112428-00665.warc.gz","language_score":0.8903387188911438,"token_count":129,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__26711598","lang":"en","text":"BBB have launched their Impulse sport glasses with interchangeable smoke polycarbonate lenses.\nThe lenses, with 100 per cent UV protection, protect your eyes against sunlight, dust and wind. The Grilamid frame features an adjustable silicon nose piece for comfort, while the soft touch temple ends provide a firm fit. The glasses come with a pouch and two extra lenses: yellow and clear.\nImpulse, which retail at £69.99, are available in white, matte black, glossy black, chrome and red, all with smoke flash mirror lenses. The white frame is also available with Photochromic lenses (£99.99).","domain":"optical_engineering"}
{"url":"https://renewablesoc.com/2012/08/28/spherical-glass-solar-energy-generator-by-rawlemon/","date":"2018-04-23T15:30:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946077.4/warc/CC-MAIN-20180423144933-20180423164933-00506.warc.gz","language_score":0.9094248414039612,"token_count":182,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__37300887","lang":"en","text":"– to inspire a sustainable future!\nAndré Broessel’s spherical glass solar energy generator is one of the more elegant examples of concentrated photovoltaics technology we’ve come across. The architect shared his work withDesignboom, where you’ll find numerous photos of the finely-sculpted glass orb. Broessel’s generator utilizes a ball lens (complete with optical tracking) to achieve higher energy efficiency than typical PV units — up to 35 percent, according to his tests. A number of renders demonstrate potential use cases for the design, though we’re not convinced such a fragile solution could ever gain widespread adoption, particularly as regular solar panels continue to drop in cost. Even so, Broessel’s structure is an impressive feat that borders on art, and it’s nice to see fresh innovation when it comes to improving solar technology.","domain":"optical_engineering"}
{"url":"http://www.amazon.fr/FOSCAM-appareil-photo-FI8910W-control/dp/B006ZP8UOW","date":"2015-02-28T19:25:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-11/segments/1424936462035.86/warc/CC-MAIN-20150226074102-00206-ip-10-28-5-156.ec2.internal.warc.gz","language_score":0.927897572517395,"token_count":380,"dump":"CC-MAIN-2015-11","global_id":"webtext-fineweb__CC-MAIN-2015-11__0__10021447","lang":"en","text":"The Foscam FI8910W is one of the latest IP cameras from FOSCAM and continues from its highly popular and successful predecessor the FI8918W. There is one very significant upgrade with the Foscam FI8910W: it?s designed to mitigate the loss of daytime colour accuracy that plagues most IR night vision network cameras by using an ?embedded IR-cut filter\" that provides enhanced picture and colour quality. The IR-Cut filter automatically adjusts the lighting exposure via mechanical filter to provide true and accurately coloured images that are not washed out whilst also adjusting to changing light conditions. In addition, the FI8910W has an upgraded and higher quality external housing. The FI8910W is a wireless or wired, pan/tilt IP camera solution for indoor use. It combines a high quality digital video camera, remote pan/tilt ability with network connectivity and a powerful web server to bring clear video to your desktop or smart-phone from anywhere on your local network or over the Internet. The high quality video image is transmitted with upto 30fps speed on the LAN/WAN by using M-JPEG hardware compression technology. The image resolution is 640 x 480 (300k Pixels). The Foscam FI8910W camera is based on the TCP/IP standard. The control, management and maintenance of the camera is done simply by using your browser to remotely configure and upgrade the firmware. The Foscam FI8910W IP camera can reach up to 8 meters of visibility in absolute darkness with 11 infrared LED's. In addition, it is smart-phone compatible (iPhone, Android & Blackberry) as well as viewable over the internet network using the standard Safari browser (no app necessary). The camera functions well as an iPhone baby monitor or as part of a home or office security system with remote internet monitoring ability.","domain":"optical_engineering"}
{"url":"https://pko.autofoto.com.pl/sp-35mm-f-1-8-di-vc-usd.html","date":"2021-09-20T17:00:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057083.64/warc/CC-MAIN-20210920161518-20210920191518-00499.warc.gz","language_score":0.7260667681694031,"token_count":872,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__52237721","lang":"en","text":"The Tamron SP 45mm F/1.8 Di VC USD is a fast prime lens with a \"normal\" focal length but it's anything but ordinary. It's great to see a company actively improving its products a while staying realistically affordable for everyday shooters. Tamron FE 17-28mm F2.8, SP 35mm F1.4, 35-150mm Tamron 17-35mm F2.8-4 Di OSD Lens to be Announced on Tamron SP 35mm f/1.4 Di USD Lens Sample Images (DPReview) Images & Specs of Tamron 17-35mm F2.8-4 Di OSD Lens Leaked; Tamron SP 85mm F1.8 Di VC USD Lens Review (Opticallimits).\nThe Tamron. The SP 35mm will keep pace with the photographer’s spontaneity – on the spur of the moment, with a handheld shot. * Rated top among current 35mm fixed focal length interchangeable AF lenses for full-frame DSLR cameras excluding macro lenses (As of July 2015. Source: Tamron). High Performance at F/1.8 Full Aperture.\nBuilt specially for today's advanced camera systems with a high pixel density, the Tamron. Tamron SP 35mm f/1.8 Di VC USD. Tamron SP 45mm f/1.8 Di VC USD. There are two switches on the lens, one is for switching between autofocus and manual focus mode and the other one is for turning on/off the optical image stabiliser. Both switches are larger than the typical one on other lenses.\ndeckenventilator mit licht und fernbedienung günstig\nSP 45mm F/1.8 Di VC USDと SP 35mm F/1.8 Di VC USDは、そんな淡い期待をも抱かせてくれるレンズである。 大浦タケシ （おおうら・たけし）1965年宮崎県生まれ。. The Tamron SP Di VC USD Lens is an advanced accessory that is designed specifically for most Canon cameras with an EF mount. It is the world’s first lens to come with a minimum object distance of 7.9 inches for full-frame DSLR cameras..\nTamron. This is a Tamron SP 15-30mm f/2.8 Di VC USD. Let's define some of the named elements of this lens so we know what we are dealing with: Tamron: A Japanese company manufacturing photographic lenses. SP: Superior Performance. This is Tamron's version of an L Series lens for Canon.\nTamron SP 35mm f/1,8 Di VC USD (Canon). Tamron SP 35mm f/1,8 Di VC USD je kvalitní světelný objektiv vhodný pro full-frame snímače. Jeho optická soustava se skládá z 10 členů v 9 skupinách s povrchovou úpravou eBAND, BBAR k potlačení. SP 35mm F/1.8 Di VC USD.\nSP. The SP AF 45mm f/1.8 DI VC USD and its 35mm focal length companion have been designed for purists; photographers who require top performance with few, if any, compromises. The 45mm focal length will be attractive to owners of ‘full frame’ cameras because it provides field-of-view coverage that is similar to normal vision..\n11/7/2015. Tamron SP 45mm f/1.8 Di VC USD F013 Lens For Nikon. The integration of VC (Vibration Compensation) into a fast standard prime lens for full-frame DSLR cameras now optimizes the potential of the 45mm lens to a degree of resolving power never seen before - to capture crisp and tack sharp images at any setting from F/1.8 full open aperture.","domain":"optical_engineering"}
{"url":"https://www.petersmithopticians.co.uk/spectacles/services/oct-digital-scan/","date":"2021-01-16T12:16:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703506640.22/warc/CC-MAIN-20210116104719-20210116134719-00438.warc.gz","language_score":0.8990433216094971,"token_count":197,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__204301836","lang":"en","text":"Optical Coherence Tomography (OCT) is one of the most up-to-date eye scan technologies for people of all ages. The OCT machine captures images in cross sectional scans and in 3D enabling us to see the different layers of the retina.\nUsing the OCT, it allows us to see problems within the eye that could not easily be seen before and at a much earlier stage. This usually allows you better treatment options and a better visual outcome.\nSome of the common eye conditions which we regularly screen with the OCT include:\n- Age Related Macular Degeneration (ARMD)\n- Vitreous Degeneration\n- Macular holes,\n- Epiretinal membranes\n- And many more\nThe scans only take a short appointment to carry out and often do not require the use of eye drops, so it is safe to drive afterwards.\nTo book an OCT scan appointment, please contact the practice on 01386 553 922","domain":"optical_engineering"}
{"url":"https://www.ramicosrl.com/en/products/ibb-technology-gmbh/","date":"2023-12-05T15:02:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100551.2/warc/CC-MAIN-20231205140836-20231205170836-00080.warc.gz","language_score":0.8889603018760681,"token_count":310,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__111143187","lang":"en","text":"PREMION O is the automatic version of the PREMION series with a purely optical measurement system. The high-resolution matrix camera allows to measure precisely the micron on symmetrical rotating pieces.\nThe automated measuring process ensures reproducible and independent from user measurements. It’s designed to measure shafts directly in the workshop, next to the manufacturing machines.\nEvery symmetrical rotating detail can be measured in few seconds and directly from the work place. That means time saving and hence an economic advantage for your production system.\nOn a stable base are installed high precision (linear) guides with an automatic moving optical system. Workpieces are placed between the adjustable tailstock and the precision spindle, led by rotary encoder.\nHOW TO MAKE THE MEASUREMENT\nThe piece is placed and blocked between the tips by the user. The operation is intuitive and everything is managed through a touch screen.\nThe features are automatically measured following the scheduled measuring sequence. Measurement results are shown on the display and they even consider tolerance.\nThe results are saved automatically in PDF and DFQ form (Q-DAS certificate according to AQDEF).\nWHAT DOES IT MEASURE\nLenght, diameter, concentricity, radius, angles and much more.\nMaximum length measurable: 400 mm\nMaximum diameter measurable: 60 mm\nLength: (4 + L / 100) μm, L = length in mm\nDiameter: (1 + L / 100) μm, L = length in mm","domain":"optical_engineering"}
{"url":"https://shivverma.com/2016/01/","date":"2020-03-30T22:33:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370497309.31/warc/CC-MAIN-20200330212722-20200331002722-00537.warc.gz","language_score":0.9422757625579834,"token_count":266,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__72546672","lang":"en","text":"Last week at the Space Coast Birding and Wildlife festival I had the opportunity to briefly try out a pre-production unit. The lens was one of the first pre-production units and a lot has changed since it’s manufacture. The final units will be way better in image quality, performance and handling. With that said, I will say I was truly impressed with the way the lens performed.\nThe Leica 100-400mm is an f/4-6.3 telephoto zoom lens that gives the equivalent of 200-800mm in 35mm equivalence.\nThe lens has a lockable zoom pull feature, so you can pull the end of the zoom to set the zoom position, or when it is locked, you need to rotate the zoom ring to vary the focal length. The lens has Power Optical Image Stabilization, and high-speed 240fps AF drive, which makes it incredibly fast in focusing performance. It is also, splash and dust proof.\nA feature I found most useful was the lens collar and foot that also rotates all the lens function switches. This allows you to easily access these in any orientation, landscape or portrait.\nIn thumbnail view, hover over the thumbnail to see the focal length and exposure details. To see a larger rendition of this slide show please click here","domain":"optical_engineering"}
{"url":"https://corporate.comcast.com/stories/10g-network-evolution-using-prisms-and-sonars-to-increase-network-reliability","date":"2021-09-17T19:45:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055775.1/warc/CC-MAIN-20210917181500-20210917211500-00182.warc.gz","language_score":0.9344068765640259,"token_count":1095,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__66889946","lang":"en","text":"Network and Engineering\nThe Road to 10G: Using Prisms and Sonars to Increase Network Reliability\nVenk Mutalik – an engineer on our Next Generation Access Network team – was working late one night in 2019 when he had an inspiration to use a well-known technology component in an entirely new way to keep our networks running smoothly for customers.\nToday, the innovation that Mutalik and his team built from that idea is giving our network engineering teams unprecedented visibility into network performance and allowing them to detect and fix issues faster than ever before. This technology is just one of many innovations Comcast is deploying to prepare our network for 10G.\nIn October 2020, Comcast achieved a 10G technical milestone in a trial delivering symmetrical 1.25 gigabit-per-second (Gbps) upload and download speeds over a live production network. This advanced architecture includes a suite of software-powered networking technologies, including digital fiber optics, “Remote PHY” digital nodes, and a cloud-based, virtualized cable modem termination system platform (vCMTS), enabling delivery of gigabit-plus symmetrical speeds using existing cable connections. The technology team consistently measured speeds of 1.25 Gbps upload and 1.25 Gbps download over the connection.\nThe long-haul fiber optic network equipment that connects cities and towns across the United States rely on thousands of highly specialized devices called “ROADMs” (reconfigurable add-drop multiplexers) that ensure trillions of bytes of information get to their intended destinations. ROADMs contain ‘optical spectrum analyzer’ chips that are essentially ultra-smart prisms, splitting fiber optic laser light into smaller and smaller beams and pointing them reliably to the right destinations, all in milliseconds.\nEvery year or so, manufacturers release a newer generation of more powerful and higher resolution optical spectrum analyzer chips, and network operators replace the previous versions of the devices in their networks. The same is true for other components like the optical time domain reflectometers, optical SONAR-like components that use “optical echoes” to pinpoint fiber imperfections.\nThat’s what got Mutalik thinking. He knew that previous-generation optical spectrum analyzers and other such components were incredibly powerful devices designed to manage fiber-optic traffic over thousands of miles. What would happen if we repurposed these mature opto-electronic chips to monitor traffic traveling thousands of feet?\nComcast’s local fiber optic networks in cities, towns and neighborhoods cover shorter distances than the long-haul networks connecting cities. Mutalik reasoned that optical components such as optical spectrum analyzers, which are designed to perform pinpoint measurements over thousands of miles, would be that much more effective managing an optical network that powers a single neighborhood.\nHis team got together and built a prototype for a system called the XMF. By installing these optical spectrum analyzers in our local fiber networks and developing software to leverage the devices’ capabilities in new ways, the team was able to gain unprecedented visibility into performance along every millimeter of those networks.\nAnd because XMF leverages previous-generation technology for a new purpose, it makes it more cost effective to install ultra-precise fiber diagnostic tools at many points throughout our local fiber networks, creating significantly more visibility for technical teams, and delivering higher reliability to customers.\nThe XMF platform continuously monitors hundreds of thousands of local broadband optical links every minute across the Comcast network, measuring both the optical spectrum and testing the length and quality of the fiber links. In practical terms, that means that with XMF installed, network engineers can now pinpoint the exact point at which a local fiber network is experiencing an issue and share the precise geolocation with local technicians. When installed, XMF reduces the amount of time it takes for a technician to find and isolate a fiber cut from 2 hours down to one-and-a-half minutes.\nThe system is so fast, that in many cases technicians are using XMF to discover and repair degraded fiber performance before customers ever notice something is wrong.\nThe XMF team is now rolling out a handheld version of the XMF platform that technicians can use in the field to identify fiber link issues in seconds and even diagnose and repair those issues on the spot. And as the team works to refine the handheld platform, they are beginning to scale the rack-mounted original version more broadly across the Comcast network.\nXMF is both a tremendous example of the sort of innovation that takes place every day among our engineering teams, and a critical development for the forthcoming deployment of 10G technology.\nEven as we develop, test and deploy technology to deliver even faster speeds to our customers, we know we have to work equally hard to ensure that those fast speeds are coupled with tremendous security and reliability. Technologies like XMF and Comcast Octave help to ensure that even as our network reaches new heights of speed and capacity, it will also be more secure and reliable than ever for the customers who depend on it.\nComcast Octave is an AI-based Platform, developed by Comcast engineers in Philadelphia that checks 4,000+ telemetry data points (such as external network “noise”, power levels, and other technical issues that can add up to a big impact on performance) on tens of millions of modems across our network every 20 minutes.","domain":"optical_engineering"}
{"url":"http://tapamerica.org/icooker-laser-level-review.html","date":"2017-06-29T12:34:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128323970.81/warc/CC-MAIN-20170629121355-20170629141355-00314.warc.gz","language_score":0.9614049196243286,"token_count":378,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__268392389","lang":"en","text":"Measuring level of a surface is conventionally conducted by using leveling bubble. The leveling equipment traps bubble inside of transparent tube. When the bubble is located in the center of the tube, it means that the surface is level perfectly. However, this leveling equipment sometimes gives incorrect reading. It is difficult to tell whether the bubble is located precisely in the center or a bit off. Modern leveling equipment uses laser to get perfect measurement. iCooker laser level is an equipment with three different approaches for measuring the level of a flat surface. Here is the specification of this multipronged measuring equipment.\nIn this laser level reviews, we are going to discuss about the three-pronged approach of this leveling equipment. The conventional mechanism of leveling bubble is still used in this equipment. The tube is in vertical, horizontal, and diagonal position. This conventional mechanism allows you to measure level of a surface in three different positions. It also features measuring tape and ruler to measure length. The length of the measuring tape is up to 8 foot. The last feature of the three-pronged approach is laser beam leveling. It uses latest technology that allows you to know the level of a surface with an incredible pinpoint accuracy.\nThe power used for the laser beam comes from battery. Fortunately, the product includes battery and the backup in the package as well. The product dimension is only 5.1 x 0.9 x 2.7 inches. Since it has slim size, you can fit it in your equipment bag. Moreover, the weight is only 5.6 ounce. Therefore, you can bring it along with you when working. As measurement equipment that is used in construction, this product is relatively cheap. You can purchase it with only $11.99. That is considered as an amazing deal due to the multipronged approach of measuring that you can do with this product.","domain":"optical_engineering"}
{"url":"https://epivana.com/what-is-coarse-wavelength-division-multiplexing-cwdm/","date":"2024-04-15T22:43:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00861.warc.gz","language_score":0.9373635053634644,"token_count":2129,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__177286226","lang":"en","text":"What is Coarse Wavelength Division Multiplexing (CWDM)?\nCoarse Wavelength Division Multiplexing (CWDM) is one of the two main WDM technologies, used to increase bandwidth on optical fiber. This passive technology combines different wavelengths to create separate channels of transmission.\nCWDM is generally used for short distances. CWDM signals can only be amplified, so they cannot travel unlimited distances.\nWhat is CWDM?\nCWDM is an optical multiplexing technology that combines optical signals of different wavelengths on one strand of fiber. Typically, CWDM can transport up to 18 wavelengths with a channel spacing of 20 nm in the spectrum grid from 1270 nm to 1610 nm. This is a cost-effective solution that works well for short distances and can be used to transmit any combination of voice, data or video traffic.\nDWDM stands for dense wavelength division multiplexing and is another WDM technology that uses closely spaced wavelengths to carry more channels on a single fiber. It has a wide range of applications, with many enterprises and telecom service providers relying on it for their networks.\nA DWDM system can support more than eight channels of transmission, which is higher than the eight channels available in a CWDM system. Moreover, DWDM systems require less power to operate and have a shorter transmission distance than a CWDM system. Nevertheless, DWDM systems need cooled lasers to maintain their accuracy and performance over long periods of time.\nIn order to achieve this, a DWDM system uses a cooled laser that adopts temperature tuning and ensures better performance, safety, and longevity of the transceiver. While this increases the cost of a DWDM system, it also results in better performance and accuracy for a longer period of time than an uncooled CWDM system.\nWhen a DWDM transceiver is active, it’s installed in a router cwdm or switch, where it routes the incoming light signal to a transponder that re-converts it into a channelized CWDM or DWDM wavelength. The transponder then connects to the CWDM or DWDM fiber via a jumper.\nThe CWDM or DWDM wavelength is then transported over the same fiber optic cable to a receiving device, such as an IP-switch. CWDM and DWDM wavelengths can also be transported over a hybrid CWDM and DWDM solution, where DWDM wavelengths are positioned on top of existing channels in the 1530 to 1550 nm band to create up to 28 additional channels. This boosts capacity without new fiber installation or major infrastructure changes.\nCWDM Mux/Demux is a device used to increase the capacity of a fiber optic network without adding any additional fibers. It is mainly used in metropolitan area networks and campus networks to meet the higher transmission capacity requirements. There are several different types of CWDM Mux/Demux, which include single-fiber CWDM Mux/Demux, dual-fiber CWDM Mux/Demux, and DWDM Mux/Demux.\nA single-fiber CWDM Mux/Demux has a single simplex line port, while a dual-fiber CWDM Mux/Demux includes a duplex line port. However, only one interface of the duplex port is usually in use for connection; the other port is marked with “N/A”.\nIf you need to expand the transmission capacity of your CWDM Mux/Demux, you can add some special ports that can increase the number of CWDM wavelengths or channels. The most popular ports are the line port and the channel port.\nThe line port is designed to transmit and receive signals on specific wavelengths, which are also known as WDM wavelengths. Both CWDM and DWDM Mux/Demux support multiple CWDM wavelengths, which can be up to 18 channels in CWDM systems and up to 40 channels in DWDM systems.\nYou can also add a monitor port on the CWDM Mux/Demux to better manage the link. This port will allow you to check the dB level of the signal without interrupting service. It can also help you track the status of the entire CWDM link.\nIn addition to the standard CWDM channel port, some DWDM Mux/Demux also have special port for 1310nm and 1550nm, which are the two most common WDM wavelengths for long distance transmission. These ports are useful when you want to add 1310nm or 1550nm wavelengths into existing DWDM networks.\nAs a result, you can create a multi-wavelength DWDM system by connecting different DWDM Mux/Demux to the same CWDM SFP transceiver. This way, you can extend the transmission distance of your DWDM network without any extra fibers or expensive upgrades.\nDWDM Mux/Demux are the preferred option for long-haul transmission. They deliver the benefits of DWDM technology in a fully passive solution, which requires no power supply or cooling to operate. Moreover, they are very robust and have a lifetime of 100+ years.\nCWDM Channel Plan\nCoarse Wavelength Division Multiplexing (CWDM) is a common method for doubling the bandwidth capacity of single fiber cables. CWDM works by using two channels – one sending, the other receiving data – over a single strand of fiber. The channels are spaced 20nm apart and are defined by ITU standards, allowing for up to 18 wavelengths to be transported simultaneously.\nCWDM systems are typically installed in metro networks, which require high speed connectivity and low cost. However, for applications requiring long distance transmissions, dense wavelength division multiplexing (DWDM) is more suitable. DWDM uses erbium doped fiber amplifiers, which boost signals to increase their amplitude over long distances. This allows DWDM to operate over longer distances than CWDM, but it also requires additional equipment, such as amplifiers and signal regenerators.\nThe main difference between CWDM and DWDM is that the wavelengths used in a CWDM system are distributed across a wide spectrum of light, whereas in a DWDM system the wavelengths are tightly packed together. This allows the signals to be amplified and travel over much longer distances, which is crucial for the long haul transmission of high-speed data.\nThis increases the bandwidth of each channel and therefore the transmission speed of the network. This increased speed makes CWDM an excellent choice for connecting to high-speed WANs, LANs and enterprise networks.\nA CWDM system consists of a set of optical transmitters and receivers which are connected over a single fiber cable. The transmitters send data to the receivers on either side of the cable, which are connected together via a CWDM Mux/Demux at each end.\nFS offers a full range of CWDM transceivers, including CWDM SFPs and CWDM SFP+ modules that are compatible with a variety of wavelengths and speeds. CWDM SFPs allow up to 18 wavelengths to be carried simultaneously on one fiber, while a CWDM SFP+ module can carry up to 40 channels at the same time.\nCWDM is a less expensive alternative to DWDM, although it cannot be used in long-haul applications and may not provide the highest data rates over long distances. It also has a limited reach, and it is not suitable for high-speed protocols that require 100Gbps per channel.\nCWDM is a standardized solution for transporting multiple WAN (wide area network) and LAN (local area network) channels over one or more fiber pairs. It is also a good choice cwdm for SAN (storage area network) applications, as it enables data to be transported over a single fiber without interfering with another fiber.\nCompared to DWDM, which has a wider wavelength spacing and requires expensive amplifiers to boost the signal, CWDM is a more cost-effective option. It also has a lower number of active wavelengths per fiber, which allows it to be used in shorter distance applications.\nIt can use an uncooled laser and a simple thin-film filter to transmit wavelengths, thereby reducing the size of the optical components. Additionally, it is less prone to alignment issues and enables the development of smaller-package devices that consume less power.\nIn addition, CWDM can scale up to a total of eight wavelengths within the 1270-1610-nm spectrum, using wavelength-division-multiplexing. This allows it to transport up to 18 CWDM wavelengths over a pair of fibers, which is a good solution for many short runs.\nHowever, it is important to note that CWDM cannot transmit signals over long distances, as it lacks the ability to amplify light. This makes it ineffective for long-haul applications that require transmission over tens of kilometers, as it can only travel up to 100 miles.\nTo overcome this limitation, CWDM uses inline regenerators that fully reamplify, reshape, and retime an outgoing signal. They are especially useful in ensuring that dispersion is minimized, which helps to ensure reliable transmission over long distances.\nAnother way to help CWDM scale is to add a wavelength-division-multiplexing system, such as DWDM, which allows signals to be amplified across the entire spectrum. This can be useful for enhancing data capacity over an existing network by increasing the number of wavelengths available.\nCWDM can also be deployed in a ring, mesh, or point-to-point configuration, which can be useful for interconnecting geographically dispersed LANs and SANs. CWDM rings can also offer self-healing protection, such as link breaking and node failure separation.\nCWDM is a cost-effective option for connecting geographically dispersed networks, and it has the potential to be highly scalable. It is also suitable for high-bandwidth networks, such as 5G, where large capacity is required to meet the data needs of consumers.","domain":"optical_engineering"}
{"url":"http://mec-lab.com/service/13","date":"2021-04-21T09:00:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039526421.82/warc/CC-MAIN-20210421065303-20210421095303-00382.warc.gz","language_score":0.9190391302108765,"token_count":375,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__186928724","lang":"en","text":"To enhance early detection of problems in advance, and the ability to analyze the building defects detection, a very modern technology has been adopted by means of infrared (IR) technology, with high specifications (thermal imaging).\nThe thermal imaging service provided us with access to a reference value during the normal operation of systems and equipment (mechanical and electrical), to compare them when an abnormality or abnormal change occurs in the work of these systems. The thermal imaging service is based on the thermal camera device which is characterized by fast performance, high operating safety and accurate measurement. Thermal imaging is one of the most important pillars of the Predictive Maintenance implementation in industrial plants. Thermal imaging is classified as a non-destructive test (NTD).\nThe Middle East Center provides thermal imaging service by means of thermal camera of all kinds in the area of diagnosis, research and predictive maintenance of industrial, commercial and service facilities, in addition to electrical equipment in the conversion, distribution and power transfer centers in the electricity companies, where detection and diagnostic service is available for each of:\n- Transfer Centers\n- Electrical feeding panels\n- Electric motors\n- water pumps\n- PV malfunctions\n- Solar water heating systems (SWHs).\n- Poor insulation of boilers and ovens\n- Poor insulation of steam and hot water pipes\n- Steam traps\nTo ensure the accuracy of the measurement results, the Middle East Center is distinguished by:\n- Measuring devices used from the most famous companies in this field.\n- Trained and specialized team to lead the measurement and examination operations, and analyze the results\n- Issuing highly professional reports using advanced software.\n- An approved procedure for each measurement\n- Most measurements are made according to international standards and specifications.\nThe center performs thermal imaging tests according to the adopted international standards: )ISO 18436: 7(","domain":"optical_engineering"}
{"url":"https://papillonetmandarine.bigcartel.com/product/patron-shalimar","date":"2022-10-06T13:27:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337836.93/warc/CC-MAIN-20221006124156-20221006154156-00398.warc.gz","language_score":0.6946986317634583,"token_count":347,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__189600796","lang":"en","text":"Medical CE Approved nd:YAG Laser Hair Removal Machine\nQ-Switch nd:YAG laser for tattoo removal, hair removal, and skin rejuvenation.\n- The screen can rotate 180 degrees for convenience\n- High quality green light for efficient performance\n- Adopts the international new smart 6-segment articular arm\n- Advanced technology produces light spot modes at even intensity\n- Imported light route from South Korea for energy stabilization\n- Imported water pump, without noise for better cooling and water flow\nLaser type: Q-Switch ND:YAG Laser\nLaser aiming: Red semiconductor aiming light, wavelength is 650-670mm\nLaser Wavelength: 1064nm / 532nm,and skin rejuvenation\nSingle pulse energy: 1064nm-600mj / 532nm-300mj\nDouble pulse energy: 1064nm-1200mj / 532nm-400mj\nLong Pulse Energy: 1064nm-2J\nWidth Of Pulse: 6~12ns\nCooling System: Closed-off water circulation inside + air cooking\nDiameter of spot: 2-10mm with adjustable treatment probes\nNet weight: 60kgs\nMachine size: 83*32*83cm\nPackage: Aluminum alloy case\nPacking: Aluminum alloy case with this sponge and strong support.\nShipping: 3-7 Days after payment.\nPayment: T/T , Western Union , MoneyGram , Paypal,Trade Assurance.","domain":"optical_engineering"}
{"url":"https://gadgetsbiz.com/polarized-camera-lens/","date":"2021-07-24T19:48:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150308.48/warc/CC-MAIN-20210724191957-20210724221957-00072.warc.gz","language_score":0.9124971628189087,"token_count":1923,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__180737817","lang":"en","text":"A polarizing filter is one of the most required tools in a photographer’s bag. It is typically the first filter landscape every photographer buys to instantly improve their image by adding vividness and contrast to them.\nPutting a Polarized Camera Lens filter on your lens is like wearing a pair of polarized sunglasses over on your eyes – the polarized glass blocks random light waves from passing through, creating a very clearer picture.\nIn this article, we will go through detailed information on polarized camera lens filters, what they do, why they are very important, and why you should consider using them for your best photography needs.\nWhat is a polarized lens for the camera?\nA polarizing filter or polarising filter (you can see spelling differences) is often installed in front of the camera lens in photography in order to some darken skies, also manage reflections, or suppress glare from the surface of lakes and the sea.\nThe rotational orientation of the filter is adjusted for the preferred artistic effect on photography.\nHow does a polarizing camera filter work?\nThe vast majority of our planet’s atmosphere is composed of many gases that are invisible to every human eye. But, a small portion of the atmosphere is created up of water vapor, pollutants, and also other particulate matter.\nThese elements vary in quantity depending on the weather, day, and also location. Sometimes Water vapor and pollutants contribute to haze, which decreases visibility over very long distances, particularly close to bodies of water.\nThe haze we see is a result of some light waves hitting particles in the air, causing randomization. Also on a clear, very sunny day, distant subjects can be covered by haze. And The best way to cut through that haze is to use a Polarized camera lens filter.\nSimply like atmospheric particles randomize daylight, so also do reflective surfaces. Using a Polarized camera lens filter can increase color saturation in your pictures by reducing reflections from water, glass, leaves, and other non-metal surfaces.\nAdditionally, using a Polarized camera lens filter helps you create deep blue skies in your pictures. Blue light waves some shorter than red and green waves, causing them to scatter very easily.\nPolarizing filter your view of the sky will prevent randomized blue light from coming into your camera lens, leaving you with the absolute blue light possible.\nPolarization filter can vary hugely depending on the celestial position of the sun, so it is very important to understand that both times of the day and the time of the year can very good impact the amount of polarization one can obtain from a polarizing camera filter.\nWhen to Use a Polarizer Filter?\nThe beauty of Polarized camera lens filter is that they solve all sorts of problems with outdoor photography\nTo Cut Down Glare\nIf there’s water in your scene, a polarizer will minimize the glare from the sun off the outside of the water.\nPolarizer Filter Not only does this improve the look and feel of the picture by not having a bright glare to distract your eye, but if the water is shallow, a Polarizer Filter allows you to actually see into the lek water.\nThat’s an obvious good benefit regardless, however, especially if you’re using water as foreground interest because the viewer will be able to see what lurks below the water’s surface.\nAdditionally, Polarizer Filter eliminates reflections off of wet outsides you might encounter in a landscape, like rocks or leaves along a body of water.\nThat means you get more extensive, more saturated colors, again without the distraction of the sun’s glare.\nTo Use Slower Shutter Speeds\nWhat some photographers don’t know is that a Polarized camera lens will actually let you use a slower shutter speed than usual.\nNow, a Polarized camera lens filter certainly isn’t going to give you the same to same light-stopping power as a neutral density filter will.\nHowever, you can get a couple more extra clicks of shutter speed to get those gorgeous, milky water effects as you see in the picture above.\nTo Make Clouds Pop\nI know I’ve faced my fair share of gorgeous landscapes that were accidentally under a bright sky with little definition and little color.\nBut a polarizer filter helps rectify that problem.\nNot only does a polarizer filter add definition to very bright clouds, but it also helps deepen the blue color of the sky.\nThat’s because a polarizer filter also helps minimize haze which is all too very common – be it from smog, smoke from forest fires, fog, or a temperature inversion.\nAs a result, a polarizer filter is very helpful for making the sky an asset in your landscape images, rather than being the very low spot of the shot due to lack of color and definition.\nRead our Another post: Camera Lens Hood\nWhen NOT to Use a Polarizer filter\nSo now that you understand the benefits of using a Polarized camera lens filter for landscape photography, it’s time to consider when using a polarizer filter is actually not such a good idea.\nWhen You Want a Highlight Wet Surfaces\nSometimes, eliminating the glare of wetness on landscape elements is actually harmful to the shot.\nAfter all, that wetness can add just a touch of very soft reflection that gives the picture a bit more depth and interest to the image. Moreover, sometimes you might not want to see for water and instead use it to reflect your scene, as is the case in the picture above.\nThe key here is to pick and choose when to remove the polarizer filter.\nIf you see that the reflections are too intense or distracting, use the Polarized camera lens filter. If they are subtle and very soft, think about continuing to shoot without a polarizer filter.\nLow Light Situations\nAs noted previously, polarizer filters reduce the amount of light entering your camera lens, so naturally, if you’re shooting in very dim lighting, a polarizer filter isn’t going to get you the results you want.\nDensely forested scenes, canyons, or shooting at dusk are situations that quickly come to mind in which you should go without the polarizer filter.\nMoreover, if you’re out at midnight shooting things like the night sky, a polarizer filter won’t do you any favors.\nFor example, if you’re shooting the moon, having a polarizer filter will only force your own camera to use a very long shutter speed or a higher ISO. Instead, remove the polarizer filter and speed up the shutter to avoid star trails (or extend the shutter to get star trails) and minimize the ISO to minimize digital noise in the shot.\nWhen Light Has Intense Color\nWhen there is a lot of color going on, such as on sunset day, removing the polarizer filter from your camera lens can actually help your photoshoot.\nThis is because that color will be reflected off of any wet surfaces in the picture.\nSo, if you’re photo shooting a sunset day at a beach, going without a polarizer filter will allow you to incorporate the very gorgeous, color-filled reflected light off of any rocks protruding from the water.\nWhat’s more extra, near sunset day when the light is a fine golden color as seen above, going without a polarizer filter helps you highlight that color.\nThat, in turn, helps make for a more dramatic picture with more color and light in the image.\nWhen Photographing Rainbows\nEven though a rainbow isn’t just reflected light (it’s also due to refraction and dispersion of light), a Polarized camera lens filter will still minimize its appearance in your images.\nThat means that if you’re shooting a scene with a rainbow; remove your polarizer filter and photoshoot without.\nYou’ll see that the rainbow is far more intense and vibrant without a polarizer filter!\nBest polarized camera lens filter\n- LEE Filters 105mm Landscape Polarizer\n- HOYA FUSION ONE CIR-PL\n- B+W XS-Pro Kaesemann HTC CPL MRC Nano polarized Filter\n- Tiffen Circular Polarizer\n- B+W 77mm XS-Pro HTC Kaesemann Circular Polarizer filter\n- HOYA PRO1 Digital Filter Circular Polarizer\n- Breakthrough Photography X4 CPL Circular Polarizer\n- LEE Filter Seven5 Circular Polarizer Filter\n- Tiffen 77mm Polarizer Filter\n- Hama Polarizing Filter\nAs you can see, there are lots of situations in which a polarizer filter shouldn’t be used.\nOf course, there are plenty of situations in which having a polarizer filter is important, too.\nEven though you shouldn’t use a polarized camera lens filter all the time, it’s still a very incredibly valuable tool to have at your disposal, mainly for landscape photography.\nOf course, like most photography gear, you don’t want to outfit yourself with something very cheap. Instead, you want a very high-quality polarized camera lens filter that helps you produce excellent pictures while offering you years of durable service as well.","domain":"optical_engineering"}
{"url":"http://www.cultofdegan.com/weblog","date":"2017-02-21T00:34:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170614.88/warc/CC-MAIN-20170219104610-00622-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.954308807849884,"token_count":179,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__232569753","lang":"en","text":"Night Vision Binoculars Generations\nThe types of night vision binoculars available can be broken down into three generations:\n1st Generation: The most popular type of night-vision binoculars on the market. 1st generation make up the most affordable models, and they are great for those who want only the absolute basics in being able to see clearly at night.\n2nd Generation: These are primarily used by law enforcement and other professional organizations. They are considerably higher performing than the 1st generation binoculars, so that means they’re also going to be considerably more expensive.\n3rd Generation: The absolute finest night vision technology is used in the 3rd generation models. This is a good resource for more information: http://bestbinoculars.biz This is why these particular binoculars can run anyone interested in owning one as much as 3000 dollars.","domain":"optical_engineering"}
{"url":"https://www.denaliai.com/partner/aws/","date":"2023-10-03T01:13:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511023.76/warc/CC-MAIN-20231002232712-20231003022712-00533.warc.gz","language_score":0.9158387184143066,"token_count":233,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__189078598","lang":"en","text":"Denali collaborates with AWS to provide end-to-end automation capabilities to the Enterprise as a global operational technology systems Integrator. Denali enables companies to quickly deploy a fully supported vision-based defect detection solution that uses machine learning to provide reliable quality inspection in a more efficient and productive environment.\nAutomation As A Service\nDenali’s fully supported, end-to-end automation solution powered by AWS eliminates the need for businesses to deal with the complexities of integrating and deploying automation in their environment. We reduce the time to benefit, lower cost of capex investments, and maintain products in the environment to the highest standards for optimal uptime and throughput.\nQuality Inspection on the Edge\nDenali’s quality inspection powered by Amazon Lookout for Vision uses trained models at the edge to identify visual defects in products with no latency to the cloud resulting in less downtime and lower costs.\nProduction Line Changeover\nDenali’s automated quality inspection solution powered by Amazon Lookout for Vision optimizes production line changeovers by streamlining the inspection process, minimizing downtime, and facilitating seamless transitions between different product configurations or setups.","domain":"optical_engineering"}
{"url":"https://www.brighouseopticalhearing.co.uk/nikon-sunwear/","date":"2022-08-10T13:43:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571190.0/warc/CC-MAIN-20220810131127-20220810161127-00448.warc.gz","language_score":0.934326708316803,"token_count":220,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__137279874","lang":"en","text":"It is important to protect your eyes from the sun’s harmful UV rays and glare. Most people are aware of the need to protect their skin and understand the consequences of not doing so, but protecting yours and your children’s eyes is equally crucial, as they too can be susceptible to adverse changes. The eyelids, cornea and retina are just some of the eyes structure that can be affected, that is why we strongly recommend sunwear to all our patients.\nNikon sunglass lenses provide precise vision thanks to their advanced light control and optical technologies. Even in the harshest of sun glare your vision will remain sharp.\nWith a wide range of options from mirrors to tints, photochromic and polarising lenses and a range of colour choices, you are able to select your own colours and bespoke your sunspecs this summer. A tint matching service is also available.\nWhether you want to stand out from the crowd or make a more subtle statement, we are here to help you choose the right option to protect your eyes and enjoy the sun in style.","domain":"optical_engineering"}
{"url":"https://tequilaontherocks.com/by-way-of-a-clear-lens-unveiling-the-strategies-of-eyeglasses/","date":"2024-02-29T21:36:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474853.43/warc/CC-MAIN-20240229202522-20240229232522-00424.warc.gz","language_score":0.9201563596725464,"token_count":1608,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__81820521","lang":"en","text":"Eyeglasses have turn into an indispensable accessory for many folks, serving each practical and stylish purposes. With their ability to proper eyesight impairments and incorporate a trendy touch to our appears, glasses have undoubtedly produced a substantial influence in our life. Even so, even though we usually focus on the lens by itself, there is a entire planet of substitution eyewear parts that contribute to the general features and longevity of our beloved spectacles.\nWhen it will come to glasses, it’s essential to recognize the intricate technological innovation and craftsmanship powering them. From the frames that supply structural support to the hinges that let for effortless adjustment, each and every ingredient plays a crucial role in ensuring a comfortable and durable wearing expertise. Substitution eyewear parts appear into perform when some thing goes awry – a scratched lens, a broken bridge, or a free temple. These elements aid us restore our glasses to their previous glory, preserving us the require for a complete substitution.\nExploring the world of replacement eyewear parts unveils various interesting insights into the mechanics of glasses. Whether it is finding the diverse kinds of lenses accessible – polarized, tinted, or photochromic – or delving into the globe of interchangeable frames that enable for adaptable style choices, there is usually far more to discover. By comprehension the intricacies of these areas, we can not only prolong the lifespan of our glasses but also make knowledgeable choices when it will come to customization and personalization.\nEmbarking on a journey to discover the secrets of eyeglasses not only presents us a deeper appreciation for these everyday companions, but it also equips us with the knowledge to make the most out of our eyewear. So, let’s place on our metaphorical detective hats and discover the realm of alternative eyewear areas, unravelling the mysteries and gaining a clearer point of view on the entire world powering the lens.\nComprehension Eyeglasses Frames\nGlasses frames engage in a vital function in not only supporting our prescription lenses but also introducing a contact of style to our daily search. They are the basis on which our glasses are constructed and can tremendously have an effect on our comfort and ease, durability, and overall aesthetic. In this segment, we will delve further into the world of eyeglasses frames to comprehend their diverse types, supplies, and customization possibilities.\nThe initial facet to take into account when it comes to eyeglasses frames is their different sorts. Frames can selection from full-rimmed, 50 percent-rimmed, to rimless types. Entire-rimmed frames completely encircle the lenses, offering greatest assistance and stability. Fifty percent-rimmed frames, as the name implies, only go over a portion of the lenses, giving a much more light-weight and subtle search. Rimless frames, on the other hand, have no frames surrounding the lenses, producing a minimalist and lightweight feel.\nUp coming, let’s get a closer seem at the supplies utilized in glasses frames. Frames can be produced from various materials this sort of as plastic, steel, titanium, or a mix of these. Plastic frames are common for their versatility, affordability, and wide assortment of colors and types. Metallic frames, which includes stainless steel and aluminum, provide sturdiness and a much more streamlined appearance. Titanium frames are recognized for their energy, flexibility, and light-weight nature, producing them a great option for these looking for the two comfort and ease and longevity.\nWhen it comes to customization, eyeglasses frames offer you a plethora of alternatives. Many frames can be modified to fit diverse experience shapes and sizes, ensuring a comfortable and secure fit. Furthermore, frames typically occur in a assortment of shades and finishes, enabling individuals to express their personalized fashion and style preferences. Some frames even offer you extra characteristics this kind of as spring hinges for added adaptability or nose pads for enhanced comfort.\nKnowing the diverse kinds, components, and customization alternatives of glasses frames is vital in choosing the perfect pair of eyeglasses for your demands. Regardless of whether you price practicality, style, or a blend of equally, the correct eyeglasses frames can make all the variation in enhancing your vision and complementing your special type.\nExploring Lens Possibilities\nWhen it arrives to glasses, selecting the correct lenses is critical for ensuring ideal visible clarity. With advancements in eyewear technologies, there are now numerous lens options accessible to cater to distinct demands and tastes.\nSolitary Vision Lenses: One vision lenses are the most typical sort of lenses utilized in eyeglasses. They have a uniform prescription energy through the complete lens, delivering clear vision at a set length. Single vision lenses are appropriate for people who have problems both viewing issues up shut or at a length.\nBifocal Lenses: Bifocal lenses are developed for men and women who call for two diverse prescriptions in their eyeglasses. These lenses have a distinct line separating two areas of the lens. The upper part is for length vision, although the decrease part, which has a stronger energy, is for close to vision. Bifocal lenses provide the usefulness of addressing both far and around eyesight wants within a single pair of glasses.\nProgressive Lenses: Progressive lenses, also identified as multifocal or no-line bifocal lenses, give a seamless transition among length, intermediate, and in close proximity to vision. Unlike bifocal lenses, progressive lenses do not have a seen line on the lens. As an alternative, they have a gradual modify in prescription energy. This makes it possible for wearers to enjoy very clear eyesight at diverse distances without the need to have to change between diverse pairs of eyeglasses.\nIt is important to seek advice from with an eye treatment expert to determine the most suitable lens choice based mostly on your particular visual requirements. They will take into account elements this sort of as your prescription, life-style, and existing visible issues to advocate the appropriate lenses for you.\nKeep in mind, picking the acceptable lenses for your glasses can significantly enhance your visible encounter and all round comfort. So, get the time to investigate and realize your lens options before producing a decision.\nKeeping and Changing Elements\nTaking appropriate care of your eyeglasses is vital to make sure their longevity and best functionality. Normal maintenance and timely alternative of areas can tremendously lead to the sturdiness and efficiency of your eyewear.\nA single crucial facet of keeping your glasses is trying to keep the lenses clean. To steer clear of scratching them, it truly is advised to use a microfiber fabric or lens cleansing resolution especially developed for eyeglasses. Routinely eliminating dust, smudges, and fingerprints not only increases visibility but also prolongs the lifespan of your lenses.\nOne more crucial part that might require substitution above time is the nose pads. These little cushions play a important function in making sure comfort and ease and correct fit. With ongoing use, they can grow to be worn out or ruined, affecting equally the comfort and stability of your glasses. Numerous optical merchants supply substitution nose pads, making it possible for you to effortlessly restore the unique comfort and fit of your eyewear.\nMoreover, the temple guidelines, also recognized as the earpieces, are topic to use and tear. These comfortable plastic or silicone covers offer grip and prevent your glasses from slipping. If the temple tips become unfastened, worn out, or unpleasant, replacing them can restore the total comfort and ease and balance of your glasses.\nBy properly preserving and changing components when needed, you can lengthen the existence of your glasses and make certain they carry on to provide you with obvious eyesight and optimum comfort. Bear in mind to consult your optician or go to a respected optical store for guidance with figuring out and buying the right alternative parts for your distinct glasses.Replacement eyewear parts","domain":"optical_engineering"}
{"url":"https://innosfound.com/duovox-ultra-military-grade-night-vision-monocular/","date":"2023-06-09T14:25:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656737.96/warc/CC-MAIN-20230609132648-20230609162648-00567.warc.gz","language_score":0.9038625955581665,"token_count":142,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__250925459","lang":"en","text":"Duovox Ultra: Military-Grade Night Vision Monocular\nA military-grade night vision monocular partner for the true explorers of the great outdoors. An advanced 1080 FHD resolution camera that captures every detail in real-time full color even in pitch darkness. All packed in Duovox Ultra — your compact and lightweight monocular that allows you to see what others can’t.\nWith the cutting-edge optical, sensor, and image processing technologies of the Duovox Ultra, you can now capture clear and stunning images even in the darkest environments. Its Starvis CMOS sensor, which is specifically designed for low-light observation, is the most advanced sensor available in the market today.","domain":"optical_engineering"}
{"url":"http://www.tokogunapris.com/distometer-leica-d210.html","date":"2020-01-26T09:01:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251687958.71/warc/CC-MAIN-20200126074227-20200126104227-00376.warc.gz","language_score":0.9251675009727478,"token_count":399,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__161693462","lang":"en","text":"The Leica DISTO D210 is a small compact laser measuring instrument, designed for simplicity of use. With an improved 1mm measuring accuracy based on the new ISO Norm standard for laser distance measures, the Leica DISTO D210 laser measure has an extended range of 80 metres, ideal for many professional distance measuring applications.\nCompliant to ISO Standard\nThe Leica DISTO D210 has been designed in accordance with ISO 16331-1 standard for accuracy and range. This actually means that the specified performances are met under practical working conditions and not just under those perfectly prepared in the laboratory.\nHandy and easy-to-use\nThe Leica DISTO D210 features a newly designed housing improving the ergonomic design with larger keys, clear display and soft rubber grip that sits securely in your hand.\nThe measuring results are shown on the three line display shows the single and final results of different measurements, such as area and volume calculations, at the same time. The display illumination means they can be clearly read, even in the dark.\nAt the touch of a button, distances can be measured and areas or volumes can be calculated with fast, reliable results. The last ten measurements taken are stored automatically and can be recalled at any time. The last ten measurements taken are stored automatically and can be recalled at any time.\nFlip-out end piece\nThe Leica DISTO D210 can be placed precisely where you are measuring from, whether measuring out of corners, slots or from edges, with this endpiece you are prepared for all measuring situations. The instrument detects the end-piece automatically, which helps you avoid expensive measuring errors.\nTo stake out positions using equal distances is also a quick and easy task: the device gives an audible signal as soon as a preset distance or a multiple thereof is reached.\nThe Leica DISTO D210 can also calculate areas, volumes, stake-out, features two basic Pythagorean functions and Painter function.","domain":"optical_engineering"}
{"url":"https://lidarmaps.org/pages/about-lidar","date":"2024-04-15T09:26:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00075.warc.gz","language_score":0.9272475838661194,"token_count":179,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__65850664","lang":"en","text":"LiDAR is a remote sensing technology that uses visible light to measure distance from an emitter. It creates highly accurate three-dimensional representations of surface features and objects by measuring the time it takes for light reflected from the ground to return to the sensor. An aircraft or unmanned drone is usually used forLiDAR scans comprising up to 100,000 laser measurements per second, commonly referred to as “point clouds”. Each point represents a specific location on the earth’s surface, with three dimensions: the cartesian mapmaker’s “X” and “Y”, (to make a conventional flat two-dimensional map) as well as a third “Z” value corresponding to elevation or height, enabling visualisation in three dimensions. Geospatial information from satellites can be added to provide augmented global coverage.","domain":"optical_engineering"}
{"url":"https://galwayjobs.ie/cache/job/13899335","date":"2019-06-18T01:06:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998600.48/warc/CC-MAIN-20190618003227-20190618025227-00022.warc.gz","language_score":0.8752631545066833,"token_count":502,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__93834509","lang":"en","text":"Optics Engineer - Image Quality\nOptics Engineer - Image Quality. County Galway. Position Overview. • As an Optics Engineer working within the Image Quality department, you will be responsible for the development of state of the imaging optics across a range of applications. Working within a highly specialised team of Optics, Image Sensor and Image Signal Processing experts, and with some of the largest OEM’s in the industry you will be expected to define, plan, validate and deliver best in class imaging optics in line with cutting edge vision applications. Key Responsibilities. • Optics design & simulation. • Mechanical simulation of optical designs (including thermal shift, stress, deformation etc.) • Develop optics specifications for a wide range of Viewing and Computer Vision applications. • Work closely with lens suppliers during design, quotation, development and validation phases of lens development. • Perform in-depth optical testing to support optics characterisation, design validation and research & development for next generation applications. • Review customer requirements and translate into internal optics requirements and specifications. • Define and maintain development plans within projects and provide regular engineering reports on status and performance of same. • Provide support to Purchasing, Quality and Manufacturing on all optics related issues. • Interface directly with your counterparts at customer sites where appropriate. • Support the validation of optics at component level in the optics lab, at the camera module level in the Image Quality Lab and in the real world on test vehicles in line with best practices, latest ISO standards and customer expectations. • Perform research into new technology, ideas, and approaches to ensure the organisation remains abreast of all leading edge/emerging vision technologies. • Work innovatively and creatively within the group with a particular focus on protecting innovation and IP through the patent process. Qualifications and experience sought: • Bachelor's Degree in Optics Engineering, Physics, Mathematics or equivalent. • Minimum 2 years' imaging optics experience. • Excellent English language communication skills, both written and verbal. • High level of innovation and motivation. Desired Skills: • Experience with PC-based optical simulation tools (Zemax, Code V, TracePro, Matlab, etc.) • Use of optical test equipment (Trioptics, Optikos, etc. • Experience of high volume lens manufacturing, assembly and test processes. • Straylight analysis. • Experience of advance coating and blackening technologies. • Automotive industry experience. This job originally appeared on RecruitIreland.com.\n390 days ago","domain":"optical_engineering"}
{"url":"https://hbond.uni-goettingen.de/equipment/curryjet.html","date":"2023-10-01T02:57:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510734.55/warc/CC-MAIN-20231001005750-20231001035750-00508.warc.gz","language_score":0.8853837251663208,"token_count":277,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__93712102","lang":"en","text":"Curry - Classical unrestricted Raman spectroscopy\nThe curry-jet is a versatile custom spectrometer that combines Raman scattering with supersonic jet-cooling to investigate molecular interactions and conformational preferences. Substances are evaporated and picked up by a carrier gas using several saturators, enabling us to mix substances and investigate mixed complexes. A heatable stainless steel saturator and heatable nozzle allow us to measure low volatile substances.\nThe vacuum chamber of the setup is pumped by two Roots vacuum pumps (250 and 500 m3/h) and a rotary vane pump (100 m3/h), leading to a sufficiently low background pressure of about 1 mbar during continuous expansions. The resulting jet is probed by a 532 nm continuous wave laser with an output power of 25 W. Light is collected at a 90° angle using a fast camera lens and focused on the slit of a Czerny-Turner monochromator. The signal is detected by a liquid nitrogen cooled, sensitive CCD camera with 1340×400 pixels resolution.\nBesides the variable temperature of the nozzle, an important adjustable parameter is the distance of the laser beam to the nozzle, which allows to carry out Raman measurements in different regions of the jet expansion. Collision induced relaxation processes can therefore be closely investigated .","domain":"optical_engineering"}
{"url":"http://lajujawipedepi.killarney10mile.com/spectroscopy-lab-7299na702.html","date":"2018-12-14T00:54:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376825123.5/warc/CC-MAIN-20181214001053-20181214022553-00431.warc.gz","language_score":0.9100562930107117,"token_count":1074,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__36482504","lang":"en","text":"Electrons must gain energy become excited to Spectroscopy lab up energy levels. The will fall back into a neighboring mercury atom. Different colors of light have different energies. The spectroscope gives us insight into the makeup of the light sources.\nMolecules interact with light in a variety of ways and enable chemical and physical aspects of remote systems to be discerned via molecular spectroscopy. CMOS technology enables compact spectrometry The IFS HR for measurements of high-resolution gas-phase infrared spectra Most Spectroscopy lab our knowledge of the universe is based upon interpretation of light detected after interaction Spectroscopy lab a remote system.\nYou see a continuous shade from red to purple. Emission Spectroscopy known Click on the list of ions below to view their emission line spectra. The cooler gas absorbs specific wavelengths of radiation passing through it.\nThis energy is released in the form of light and it is what Bohr observed. Here we see that the yellow color above is not a pure yellow. A phosphor is a mineral that absorbs UV light and converts it to visible light. Then determine the identity of 2 unknown ions using a flame test and the emission line spectra from the known ions.\nAt the lodge where I was staying, there were no nearby towns or places that had light. Sunlight is in the same category as an incandescent bulb. When fluorescent light passes through the spectroscope, the white light is spread out so that we can see the separate bands of colors.\nA tunable radio-frequency is then multiplied to the THz band of choice, passed through a gas cell and detected with either a room temperature diode detector, a liquid helium cooled bolometer, or a THz mixer. The top spectrum goes with the top image above 4 bulbs.\nThis light is a halogen light. Spectrometric measurements of rotational transitions are highly specific to molecular conformation and isotopic composition. In the molecular spectroscopy laboratory a variety of instruments combine cutting edge technical expertise with extreme environment chambers to enable the elucidation of molecular spectra under conditions exemplary of environments found in space.\nThis is an example of a continuous spectrum, also know as the visible spectrum of colors.\nHere is an incandescent bulb that emits light from a hot filament. Develop a scientific argument claim, evidence, reasoning that answers the research question.\nEmail your report along with the pictures. Different elements produce different spectra. Spectrometer on a Chip: This spectrum appears as a continuous spectrum of all colors with a number of gaps or dark lines throughout it.\nPerform the virtual experiment and analyze your results. Our research provides specific knowledge required first to design spectroscopic instruments for NASA missions and then to interpret the resulting observations. Here is what the spectroscope sees with white objects lit by sunlight.\nThese high energy electrons are unstable and eventually fall back down to their lower energy levels ground states releasing the energy that they had gained when they were initially excited.\nThe photons of different colors fall in different positions on the color spectrum.\nExtra bands help fill in more colors. The colors will look smeared together rather than banded. These different spectra are called the atomic spectra and are unique enough to be thought of as a finger print of the element. The molecular gas emission and absorption from space is identified and quantified utilizing laboratory data.\nCavity enhanced techniques allow high sensitivity measurements, but the 0. Halogen light have small bulbs and run very hot.Spectroscopy and Imaging Spectroscopy Spectroscopy and Principles of Spectroscopy Extensive tutorial on reflectance spectroscopy, the causes of absorption bands, the absorption and scattering processes that occur when light encounters a particulate surface, and principles of spectroscopy including continuum analysis.\nSpectroscopy Laboratory CMOS technology enables compact spectrometry The IFS HR for measurements of high-resolution gas-phase infrared spectra Most of our knowledge of the universe is based upon interpretation of light detected after interaction with a remote system.\nObjective: Using a flame test and a spectroscope, determine the emission line spectrum of various known ions. Then determine the identity of 2 unknown ions using a flame test and the emission line spectra from the known ions.\nYour lab assignment is to examine light sources in your home and the street lights by your house. Give me a report of what you find. Again, don't point the spectroscope at the sun. (spectra) look like. This light is a halogen light. Halogen light have small bulbs and run very hot.\nThey also produce UV light. Some bulbs have glass that. Spectroscopy Lab: Images & portions of this lab have been provide by Dr. Walt Volland, Bellevue Community College: Spectroscopy is the analysis of light spectra and the way in which light interacts with killarney10mile.com light is analyzed it is commonly separated into its component colors.\nAstronomy laboratory – Spectroscopy Procedure sheet (1) Sign the roll, form groups of two students, and open the file called “killarney10mile.com” on the computer.\nAlternatively, you may receive a printed copy from your TA. .Download","domain":"optical_engineering"}
{"url":"https://www.cherepahi.com/diving/turtle.nsf/0/5FE688CF534814358525779900560142","date":"2019-07-16T02:19:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195524475.48/warc/CC-MAIN-20190716015213-20190716041213-00523.warc.gz","language_score":0.8864794969558716,"token_count":386,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__63542519","lang":"en","text":"J.W.Fisher Underwater Light DHL-1\nПроизводитель: JW Fisher\nВ данный момент не поставляется\nFishers diver held underwater lighting systems for commercial applications.\nJW Fishers underwater light systems are ideal for any of the numerous underwaterstructure inspections encountered by today's commercial diver. These surface powered lights supply continuous lighting for extended underwater operations.\nThe DHL-1 Diver Held Light system was designed for divers that want hands-on control of their lighting. Two light housings are mounted to a solid grip handleletting the diver control the direction of the light beam and the distance to the lighted object.\nThe DHL-1 provides concentrated underwater lighting for jobs in depths up to 1000' (305 meters). The light is available with high intensity 100 or 250watt bulbs. These lighting systems can be powered by a small generator or by battery (with inverter).\nThe light housing is constructed of high-impact, corrosion proof epoxy and urethane for years of trouble free performance. The light has slightly negative buoyancy and weighs only ounces in the water. The light beam is provided by powerful tungsten halogen lamps. Fishers unique water cooled design of the lights ensure long bulb life. Each system comes standard with an abrasion resistant 150' (45.75 meters) cable and underwater connector at the light. The DHL-1 system is powered by 120 Volts AC. A ground fault circuit is provided at the surface for diver safety. Options include: 12 Volt DC (inverter), 220 Volt AC (transformer), up to 1000' (305 meters) of cable, 250 watt bulbs, and spares kits.","domain":"optical_engineering"}
{"url":"http://aump3.com/","date":"2021-12-03T15:46:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362891.54/warc/CC-MAIN-20211203151849-20211203181849-00497.warc.gz","language_score":0.9148948788642883,"token_count":260,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__198645529","lang":"en","text":"Plastic Optical Fiber & Cable\nPlastic optical fiber also abbreviated as POF, is a type of optical fiber made out of a type of polymer that transmits light and is used for illumination or data transfer. A big advantage of POF is the fact that it can bend and stretch unlike fiber optics made of glass. ESKA™ is a high performance POF Mitsubishi product which is used for short range communications and light transfer.\nThe accuracy, quality and precision of ESKA™ capabilities may be found in a broad spectrum of demanding applications which include Critical Site Lighting, In-situ Medical Devices, Automotive Interiors and Networks, Home/Office Networks, Industrial Automation, robotics and much more. Availability is in an assortment of optical fiber grades as well as a variety of functional cable jackets.\nESKA™ Plastic optical fiber meets an array of critical standards including: IEEE 1394; compliance with ANSI, EIA, Ethernet, Profibus, Sercos, MOST plus UL1581 for flame retardation. The temperature operating range is -55°C to 105°. EMI/RFI immunity is also maintained. Recent ISO|IEC|IEEE 8802-3:2017/FD also certified 1GB Ethernet over POF.","domain":"optical_engineering"}
{"url":"http://harlowbees.co.uk/learning/microscopy-for-beekeepers/microscopes-for-beekeepers/","date":"2018-07-21T21:20:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676592778.82/warc/CC-MAIN-20180721203722-20180721223722-00406.warc.gz","language_score":0.9341322183609009,"token_count":363,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__70971114","lang":"en","text":"Beekeepers use two types of microscope. High power or compound microscopes and lower power dissection microscopes.\nThe compound microscope typically provides magnification from x40 to x1000 and is used for pollen identification and the identification of some disease causing organisms. A compound microscope will normally have a single eyepiece although more expensive models are available with binocular vision.\nA dissection microscope provides lower magnification, usually x10 to x40. It has two eyepieces and provides the stereo image essential for successful manipulation and dissection of samples.\nHarlow BKA owns both types of microscope and these are available for loan to members wishing to experience microscopy before buying their own equipment.\nThe compound microscope usually relies on light transmitted through a sample while the dissection microscope relies on light reflected from the sample. Samples for viewing under a compound microscope therefore have to be thin and transparent. To achieve this they are usually mounted on a glass slide and flattened under a cover sheet. In the case of external bee parts they also require processing with chemicals to enable them to be flattened and to make them transparent. See Slide Preparation for details of the processes required.\nAt additional cost some Microscopes come with digital cameras built in that connect directly to computers, projectors or recorders. Similarly adapters are available for connecting cameras for still or video photography to microscopes either through the eyepiece or via a dedicated photography port on trinocular microscopes.\nThere are several specialist suppliers of microscopy equipment. One of them, Brunel Microscopes, devotes part of its website to beekeeping and offers discounts on equipment specifically aimed at the Beekeeper and the BBKA Examinations.http://www.brunelmicroscopes.co.uk/beekeeping.html","domain":"optical_engineering"}
{"url":"http://waylonuqjc222.blogzet.com/2-items-you-do-not-have-information-when-it-comes-to-lasik-eye-treatments-5258679","date":"2018-11-18T05:45:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743968.63/warc/CC-MAIN-20181118052443-20181118074443-00097.warc.gz","language_score":0.9527097344398499,"token_count":882,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__101946936","lang":"en","text":"2 Items You Do Not Have Information When It Comes To LASIK Eye TreatmentsThe eye can be examined with relative ease as to both its function and its structure. A functional examination includes the ability to relocate the orbit and the response of the student to light and lodging.\nThe function of the eye may be tested in numerous methods. The client may be asked to determine illuminated letter or objects of differing sizes on exactly what is referred to as the Snellen chart.\nConversely, the evaluation of the structural part of the eye may be made in numerous ways. Stress within the eyeball is measured by a \"tonometer.\" In particular diseases, specifically in glaucoma, the tension in the eyeball is increased noticeably.\nNevertheless, it ought to be well kept in mind that a client with an eye problem might have other issues also. Typically other physical conditions are main and impact the eye as a effect. The appearance of the eye can notify the client and the doctor to troubles in some disruptions of other parts of the body even before other signs present themselves.\nOne's dependence on sight is emphasized when one faces a possible or temporary permanent loss of this important sense. For this reason, when corrective measures are sought, certain types of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some individuals are bothered with the fact that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgical treatment is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this original site type try here of surgical treatment, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe main function of this surgery is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the main reason this type of eye surgery has actually ended up being well accepted is since the majority of its cases had actually succeeded.\nNevertheless, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nDue to the fact that LASIK click over here now eye surgery includes the operation of the retina, which is among the most sensitive portions of the eye, many people state that the operation can be extremely dangerous.\nIn other words, a basic error might almost cause an individual's life time blindness. It is crucial to think about lots of aspects prior to choosing whether LASIK eye surgical treatment is the ideal restorative step one has to go through.\n2. It is not a ideal procedure\nLASIK eye surgery may correct your vision but it does not necessarily mean that it can give you a twenty-twenty. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily mean they have perfect vision also.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not constantly be the perfect eye surgery the method the majority of people view it\nConversely, the assessment of the structural part of the eye may be made in several methods. It ought to be well remembered that a client with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can alert the client and the physician to difficulties in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"http://applications3d.com/services/3d-scanning/","date":"2017-04-27T06:57:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121893.62/warc/CC-MAIN-20170423031201-00410-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8742384314537048,"token_count":161,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__179116312","lang":"en","text":"3D Scanning Workflow\nOur Scanning Technologies\nWe Offer High Resolution 3d white light scanning with Steinbichler comet 5 and L3D white light scanners.\n[/accordionitem] [accordionitem] Steinbichler blue light 3d scanners offer the highest accuracy, affordable prices, and extreme portability.\n[/accordionitem] [accordionitem] Faro edge arm with the V5 3d laser scanner offers the highest flexibility and accuracy while measuring in tight and enclosed spaces.\n[/accordionitem] [accordionitem] Industrial CT scanning is a 3d x-ray type scanning method which allows hidden areas of the part to be measured successfully and accurately. This data can be used for reverse engineering and inspection.","domain":"optical_engineering"}
{"url":"http://www.craigandrhodes.com.au/news/3d-laser-scanning.html","date":"2018-05-21T07:22:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794863967.46/warc/CC-MAIN-20180521063331-20180521083331-00286.warc.gz","language_score":0.8896366357803345,"token_count":230,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__32557702","lang":"en","text":"3D LASER SCANNING\nOur news items celebrate our success and significant business milestones together with the latest development news across Australia.\nCraig & Rhodes has introduced high-speed 3D laser scanning technology into its operations. 3D laser scanning provides comprehensive and accurate measurements for complex environments. Using ultra fast scan speeds, it digitally records 900,000 points per second to capture the context of the site for architects, engineers, planners, builders and developers.\n3D laser scanning provides unprecedented data quality for concept plans, Building Information Modelling (BIM) and detailed design. It generates 3D models and other deliverables such as detailed imagery and real fly-thru videos to plan and manage the design of new developments and refurbishment of existing ones.\n3D laser scanning is a breakthrough innovation as it enables the scanning of difficult internal locations and inaccessible or unsafe sites. It can be used to deliver streetscapes, internal building fit-outs, heritage & dilapidation surveys, complex facades & elevation surveys, existing road & bridge surveys, as well as plan surrounding green space, facilities management and as a community consultation tool.","domain":"optical_engineering"}
{"url":"https://beyondexclamation.com/scientists-up-the-game-with-10-petawatt-laser-vaporizing-matter/","date":"2024-02-23T08:10:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474361.75/warc/CC-MAIN-20240223053503-20240223083503-00673.warc.gz","language_score":0.9618321657180786,"token_count":332,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__19930998","lang":"en","text":"The Death Star 1PW laser launched in 2014 has been superseded by the new 10-Petawatt laser creation that has been successfully tested. With one tenth energy of the sun on earth, the laser is powerful enough to vaporize matter. The project was developed with a funding of €850 million from the Europeon Commission by the Extreme Light Infrastructure (ELI) project.\nRomanian physicist tested the laser earlier in March which is the most powerful laser ever built. The concept of developing laser was born in mid 2000s by scientists in Europe under the ELI project and three countries that is, Romania, Hungary and Czech Republic became home to the project. Surpassing layman understanding the laser is ten times stronger. It is placed in a sealed chamber traversing through varied vacuum tubes with focusing lenses and resides in a town called Magurele which is at a distance from Bucharest. It is called Extreme Light Infrastructure – Nuclear Physics and is built for the study of photonuclear physics and its application.\nThe power to vaporize matter, the laser opens new doors for ideas and innovations. With a more practical approach ELI-NP will focus on developing medical research in proton cancer therapy and will also be operational in seeking new methods to handle radioactive waste. How heavy metals are formed and the effects of supernova are also some of the studies that the ELI-NP will be utilized for.\nTaking care of power and accuracy the scientists securely operate the device with a help of a computer and track the readings. Technology is a masterpiece of the human brain and needless to say laser technology has reached not only the moon but way beyond.","domain":"optical_engineering"}
{"url":"https://sundasbusinesshub.com/what-purpose-does-an-android-led-serve/","date":"2023-12-01T13:59:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100287.49/warc/CC-MAIN-20231201120231-20231201150231-00235.warc.gz","language_score":0.9219102263450623,"token_count":883,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__262990305","lang":"en","text":"An LED (Light Emitting Diode) in an Android device serves several purposes:\n- Indication of device status: LEDs are commonly used to indicate various statuses of an Android device. For example, a blinking LED might indicate a new notification or message, a solid LED could indicate that the device is charging, and a different color LED might represent a low battery or other system events.\n- Camera flash: Many Android devices use LED lights as a camera flash. When taking photos or recording videos in low-light conditions, the LED can provide additional light to improve image quality.\n- Notification alerts: LEDs can be used to notify users about incoming calls, messages, or other events. Different colors or blinking patterns can be assigned to different apps or types of notifications, allowing users to quickly identify the source of the notification without turning on the screen.\n- Proximity sensor indicator: In some devices, an LED near the front-facing camera serves as a proximity sensor indicator. It can indicate when the sensor is active and detecting the presence of an object (such as your face) near the device, which is used for features like automatic screen dimming during calls or preventing accidental touch inputs.\n- Battery status: Some Android devices have an LED that displays the current battery status. It can indicate whether the battery is low, charging, or fully charged.\nIt’s important to note that not all Android devices have LEDs, and the specific functionality and purpose of the LED can vary between different models and manufacturers.\nWhere is Android LED used more frequently?\nLEDs in Android devices are used more frequently in the following areas:\n- Notification alerts: LEDs are commonly used to notify users about incoming calls, messages, emails, or other types of notifications. This feature is especially popular in devices that have a dedicated LED indicator, as it allows users to quickly glance at their device and determine if there are any pending notifications without having to turn on the screen.\n- Camera flash: LEDs are widely used as camera flashes in Android devices. The LED flash provides additional light when taking photos or recording videos in low-light environments, helping to improve the image quality.\n- Proximity sensor indicator: Some Android devices use an LED near the front-facing camera to indicate the status of the proximity sensor. When the sensor is active and detects an object near the device, such as during a call, the LED may turn on or change color to indicate its status.\nIt’s worth noting that the popularity and implementation of LEDs can vary across different Android device manufacturers and models. Some devices may have more advanced LED functionalities, while others may not have LEDs at all.\nWHAT YEAR DID ANDROID LED APPEAR?\nAndroid LED notifications have been present in Android devices for quite some time. LED notifications were first introduced in Android smartphones around the year 2010 with the release of Android 2.3 Gingerbread. However, it’s important to note that not all Android devices have LED indicators, as the presence of LEDs and their functionalities can vary between different manufacturers and models. Some manufacturers may choose to use alternative methods, such as OLED displays or Always-On Displays, to provide notification alerts.\nTHE ESSENTIAL ASPECT OF ANDROID LED\nThe essential aspect of an Android LED is its ability to provide visual notifications and indications to the user. LEDs in Android devices serve as a simple yet effective way to convey information without the need to turn on the device’s screen. They are commonly used to alert users about incoming calls, messages, emails, or other notifications, as well as indicate the status of the device’s battery, charging, or other system events.\nThe key purpose of an Android LED is to provide users with at-a-glance information and notifications, allowing them to stay informed about important events without needing to interact with the device directly. This feature is particularly useful when the device is in a silent or vibration mode or when the user is unable to access the screen immediately.\nThe specific functionalities and customization options of the LED can vary depending on the device and its manufacturer. Users may have the ability to assign different colors, blinking patterns, or durations to different types of notifications, enabling them to quickly identify the nature and source of the notification without unlocking or checking the device.","domain":"optical_engineering"}
{"url":"https://zetaled.co.uk/case-studies-signage-led-lighting/transport-for-london-finsbury-park/","date":"2021-09-20T22:27:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057119.85/warc/CC-MAIN-20210920221430-20210921011430-00290.warc.gz","language_score":0.9386022090911865,"token_count":185,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__175849474","lang":"en","text":"Zeta were asked if they could provide a mains powered lighting system that would be maintenance free with a good level of illumination. The light output would need to compete with traditional fluorescent lighting and easily integrate with the current Totem design.\nIn response, by scaling their standard LED ‘Flat Light’ technology, Zeta designed a bespoke solution to meet this custom application.\nThe high level of brightness was achieved by using the very latest ultra bright LEDs from Cree which offer market leading lumens per watt and 50,000 hours lifetime. Using Zeta’s light diffusing material the luminaire provides an even illumination over the entire display avoiding the banding associated with standard fluorescent lighting.\nThe end result is a lighting system that provides cost effective, energy efficient lighting for the Totem’s lifetime with no servicing or replacement bulbs required.\nTotem at Finsbury Park Interchange.","domain":"optical_engineering"}
{"url":"http://mahamudras.blogspot.com/2011/03/le-double-soleil-chinois-toujours-pas.html","date":"2018-07-17T22:35:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589932.22/warc/CC-MAIN-20180717222930-20180718002930-00461.warc.gz","language_score":0.72402423620224,"token_count":159,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__100335892","lang":"en","text":"Ca me fait rire encore tiens... C'est un reflet. Un reflet complètement inexpliqué mais un reflet quoi. C' est gentil ça ne mord pas, c'est rassurant un reflet.\n[...] The double sun image is an effect of optical refraction, Kaler said, but it's a \"pretty darn rare\" one, and one not fully explained by science. [...]\nSeveral related atmospheric optical effects are fully explained by science. Sun dogs, sunset mirages, sun pillars and sun halos are all relatively common and well understood. But not this effect.\n\"It's very intriguing,\" said Kaler.\n'Two suns' spotted in China defy explanation","domain":"optical_engineering"}
{"url":"http://kunskapsformedlingen.se/forskare/alexander-kaplan/","date":"2022-08-12T15:36:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571719.48/warc/CC-MAIN-20220812140019-20220812170019-00567.warc.gz","language_score":0.9267582893371582,"token_count":308,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__99205967","lang":"en","text":"2010 – 2012\nChaired Professor in Manufacturing Systems Engineering, Ph.D. in laser welding (Doktor techn.), MSc in Electrical Engineering (Dipl.Ing.)\nThe research of myself and the research group that I am responsible for comprises laser materials processing, particularly additive manufacturing and welding with laser beams. In particular, we apply various mathematical methods as well as experimental methods like advanced high speed imaging to study the process physics.\nAlexander Kaplan was born in Vienna, Austria in 1967. He was employed as researcher at Vienna University of Technology from 1989 to 2000. In 1994 he received his PhD-degree on the modelling of laser welding. After a post-doc year at Osaka University, Japan, from 2002 on he has been appointed as chaired professor of Manufacturing Systems Engineering at Luleå University of Technology, Sweden. He belongs to the Division of Product and Production Development at the Department of Engineering Sciences and Mathematics.\nAlexander Kaplan has particular experience in mathematical modelling and high speed imaging of laser materials processing, particularly for laser welding, laser cutting and laser additive manufacturing. This includes the development of sophisticated semi-analytical mathematical models and resulting analysis on\nby an own mathematical approach (semi-analytical modelling) that enables flexibility to take into account individual mathematical models for each relevant physical mechanism involved, in particular interaction zone geometry, absorption, thermodynamics, fluidmechanics, plasma formation, chemistry, metallurgy, stress formation, etc.","domain":"optical_engineering"}
{"url":"https://www.indianriverlagoonbyway.com/destination/bcc-planetarium-observatory/","date":"2024-04-16T07:37:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817073.16/warc/CC-MAIN-20240416062523-20240416092523-00308.warc.gz","language_score":0.9113589525222778,"token_count":647,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__100894959","lang":"en","text":"BCC Planetarium & Observatory\nThe Planetarium- Their world-class planetarium has seating for 210 under a 70-foot dome projection screen. A special lift provides access to the second-story seating for those who would rather not make the climb up the curving stairways. Two star projectors team up to produce a stunningly realistic sky and 3D computer effects. The Minolta Alpha Infinium shines 28,000 little points of light to create the feel of a real skyful of stars, and has auxiliary projectors to add the Sun and Moon. The Evans and Sutherland Digistar is a computer graphics projector capable of flying us through a 3D representation of our universe. The Digistar also is used for any graphic requiring only dots and lines, such as constellation overlays. A superb audio system is capable of achieving concert-level sound for rock laser shows, and putting the feeling behind explosions and rocket liftoffs. The high quality of the sound in our planetarium is something we are all proud of. Five video projectors display moving images in the front half of the planetarium. 32 slide projectors are used for dome-filling “All-Sky” images, wraparound panoramas, and to show high-quality images. Two 3.5 Watt lasers shine bright and colorful light through five projection ports. These machines add animations and special effects that can’t be easily achieved in any other way. Plus, they help to make our laser shows some of the best in the biz.\nThe Observatory- The BCC Observatory is home to the largest public telescope in Florida which is open every week. Members of the Brevard Astronomical Society operate the telescope, and serve as guides to your own personal tour of the night sky. Planets, fuzzy nebula, double stars, star clusters and galaxies are some of the things you may see on any given night. The telescope is 24 inches in diameter, and uses a 134 pound glass mirror to collect light from distant objects. That light is then reflected back from a second mirror, which effectively “folds” an eighteen-foot light path into a compact seven-foot-long tube. An eyepiece at the back of the telescope then magnifies the image. Normally, we use magnification from about 150 power to over 400 power. Strapped to the side of the main telescope is a six-inch diameter refracting telescope that uses a lens to gather light. At the rear of this fine instrument is a small video camera, which sends a picture to a television monitor near the control desk. We also have recorded images using this telescope to show to visitors when the sky is not cooperating. The telescopes are controlled by a set of two computers. One runs “Starry Night,” commercial software (available in our gift shop!) that presents a simulation of the night sky. Telescope operators can click on any object, and instruct the computers to aim the telscope at that object. These commands go to another computer that runs special software to drive the motors that make the telescope move. These same motors keep the telescope pointed at the same place in the sky as our Earth turns.","domain":"optical_engineering"}
{"url":"https://store.perle.com/s-1000mm-s2st10","date":"2019-05-23T11:31:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257243.19/warc/CC-MAIN-20190523103802-20190523125802-00128.warc.gz","language_score":0.6919665932655334,"token_count":119,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__29013183","lang":"en","text":"Hover to zoom\nS-1000MM-S2ST10 Gigabit Ethernet Fiber to Fiber Converter. 1000BASE-SX 850nm multimode (ST) [550 m/1804 ft.] to 1000BASE-LX/LH 1310 nm single mode (ST) [10 km/6.2 miles].\nReliably extend multimode to single mode fiber.\nFor complete product details and technical specifications, please visit our S-1000MM Gigabit Fiber to Fiber Media Converter Product Page.\nQuestions? Contact Perle Now for help.","domain":"optical_engineering"}
{"url":"https://shop.simplerent.dk/shop/equipment-categories/cameras-accessories/lenses/mft-micro-four-thirds/samyang-35mm-mft-1-5/","date":"2024-04-15T07:00:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816942.33/warc/CC-MAIN-20240415045222-20240415075222-00806.warc.gz","language_score":0.7568016648292542,"token_count":313,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203040245","lang":"en","text":"Samyang 35mm MFT 1.5\n– Covers Four Thirds Format\n1 Day 100,00 DKK excl. Vat\n2 Days 150,00 DKK excl. Vat\n4 Days 250,00 DKK excl. Vat\nPrice for selected rental period:\n100,00 DKK excl. Vat\n1 / 1 available\n– 35mm Lens, T1.5\n– Multi-Layer Coating to Reduce Flare\n– Standard Gearing for Focus and Iris\n– Dual Side Focus and T-Stop Scales\n– De-Clicked Aperture Ring\n– Hybrid Aspherical Lenses\n– Manual Focus and Aperture\n– Removable Petal-Type Lens Hood\n– Accepts 77mm Threaded Filter Rings\nUtilizing a multi-layer coating process for consistent color rendition from lens to lens the Rokinon 35mm T1.5 Cine DS Lens answers the challenge of assembling a set of lenses over time.\nThe lens comes in Micro Four Thirds Mount and features industry standard geared focus and iris rings that share common position with other Rokinon Cine DS lenses.\nTo aid focus pullers who have to work both sides of the lens, the aperture and focus scales are marked on both sides of the lens.\nOnly logged in customers who have purchased this product may leave a review.","domain":"optical_engineering"}
{"url":"http://uk.redwolfairsoft.com/redwolf/airsoft/Accessories_Scopes_and_Sights_GBB_Shield_Reflex_Mini_Sight_Red.htm","date":"2017-03-28T11:54:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189734.17/warc/CC-MAIN-20170322212949-00516-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8075090646743774,"token_count":328,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__110630271","lang":"en","text":"Shield Relflex Mini Sight ( RMS ) is a parallax free, clear polymer optic, which can withstand up to ten times greater shock impact than products using glass optics. Unlike many competing products, the RMS is designed without a red reflective filter on the lens to ensure minimal visual signature. This sight body is made from aerospace-grade aluminium and has an anodized Matt Red finish. Variable intensity drive circuit that senses target light levels and controls LED output giving optimum visibility of the dot against the target. The RMS fits all mounts readily available for the Shield Mini Sight ( SMS ). The RMS is availble with an optional battery draw that allows you to change the battery without having to unmount the sight.\nLight Source: Red light emitting diode (LED) No laser; completely eye safe No radioactive materials\nRed Dot Size: 8 MOA dot\nLens: Reflex x1 (no magnification)\nLens Coating: Anti-reflection No coloured coating, minimises visible\nBattery: One 3V lithium battery, CR2032\nBattery Life: 2 to 3 years ? average use >4 years ? dark storage\nBrightness Adjustment: Automatic\nBrightness Range: Lowest ? Compatible with Night Vision: Highest ? Visible against the sky in bright daylight\nHousing material: Aluminium\nColour: Matte Red\nDimensions: Sight only (Length x width x height) 42 x 25 x 23 mm 1.7 x 1.0 x 0.9 inches\nWeight: 17.5 grams / 0.61 ounces\nMount: A wide range of mounts are available.","domain":"optical_engineering"}
{"url":"https://www.creasolution.it/en/industries/leather/","date":"2023-06-03T02:17:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648911.0/warc/CC-MAIN-20230603000901-20230603030901-00340.warc.gz","language_score":0.9213635325431824,"token_count":178,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__155183816","lang":"en","text":"Crea Solution 2023 – P.IVA 02483631202\nTutti i diritti riservati\nOur company is able to optimize the entire manufacturing process, while guaranteeing a high quality end product.\nLeather processing has always been a very delicate process due to the high cost of the raw material and its heterogeneous nature. Crea Solution offers solutions capable of automating processes that until a few years ago required the eye and human intervention. Thanks to the innovative artificial vision system it is now possible to detect the quality and defect areas, place the model previously created with a CAD for leather goods and cut the pieces with extreme precision, without human intervention.\nOur clients know we are a transparent and adaptable partner, ready to help them to satisfy their needs with projects and products with cutting edge technology.","domain":"optical_engineering"}
{"url":"http://www.fiberopticmania.com/2012/tutorials/g652d-low-water-peak-optical-fiber-characteristics-and-applications/","date":"2020-02-27T05:24:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146647.82/warc/CC-MAIN-20200227033058-20200227063058-00168.warc.gz","language_score":0.9225349426269531,"token_count":1071,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__15356175","lang":"en","text":"Low water peak fiber, as known in the fiber optic industry in general, which is the ITU-T G652D compliant optical fiber in the series of ITU-T G.652 recommendations has many different brands introduced by different optical fiber manufacturers. Each one of the claims with sufficient reasons why their version is superior to others!\nSome of the known brand names are Zero Water Peak (ZWP) fiber, Allwave(R) and Low water peak fiber – all pointing to the same optical fiber mentioned in the ITU-T G.652 recommendations, Table D.\nPutting in a layman’s language, low water peak fibers are different from ITU-T G.652B fibers in two aspects. The first and foremost difference is that ITU-T g.652D fibers can utilize the water peak region for transmission. For a conventional optical fiber complying G.652B recommendations, it is not possible to utilize the spectrum ranging from 1360nm to 1480nm. The attenuation or loss is quite high in this region compared to the 1310nm and 1550nm spectral regions.\nThe water peak in a G.652B fiber occurs at 1383+/- 3 nm typically. Some manufacturers roughly specify it as 1383nm. The G.652B fibers drawn from the preforms made by using MCVD process shows comparatively higher attenuation at water peak region. VAD (Vapor Axial Deposition) preform manufacturing process to a great extent eliminates the presence of hydroxyl ions, which contributes towards lower attenuation values in the water peak region. On a higher side, these low attenuation values come near to less than 0.5dB/km, typically falling below 0.32dB/km. It is known that for MCVD process, the attenuation at 1383 nm region may go higher than 1dB/km.\nSo, attenuation at the water peak region has reduced to less than or equal to the attenuation at 1310nm for an ITU-T G.652D compliant optical fiber. This is the first difference from G.652B fiber. Since the attenuation is low at the 1383nm region, the whole spectrum ranging from 1310nm to 1625nm can be used for transmission if a G.652D fiber is used in a telecommunication network. This opens up a huge window for transmission.\nG.652D fibers are treated in a Deuterium chamber in order to fill the voids in the glass material with Deuterium atoms. This prevents the penetration and occupation of hydroxyl ions to the glass structure when the optical fibers come in contact with a hydrogen generating environment such as water or other cable compounds.\nThe application of G.652D fiber is mainly in long-haul terrestrial, backbone, Metro-core and Access (from the central office to the splitter point). In reality, almost all requirements of G.652B category fibers have been replaced by G.652D fibers.\nLeading optical fiber and component supplier OFS has Zero water peak fiber. There is an interesting, but silent technical debate between ‘Zero version’ versus the Low Version’. Another leading fiber supplier, Draka think that zero is not necessary for the fiber optic industry.\nThe second difference is in the Polarization Mode Dispersion (PMD) coefficient. ITU-T requirement for PMD coefficient for a G.652B fiber is less than or equal to 0.5 ps/sqrt.km. For a G.652D fiber, the values of PMD shall be less than or equal to 0.2ps/sqrt.km. Thus G.652D fibers can be used for high-speed transmissions such as 40Gbps or higher. With a reduced PMD, fiber can accommodate more signals over long distances. This makes the G.652D suitable for long-haul, metro-core, backbone and access telecommunication networks.\nFor a G.652D fiber, other transmission parameters such as Chromatic Dispersion (CD) at 1550nm, 1285nm～1340nm, Zero dispersion Wavelength, Cut-off Wavelength etc., are almost the same to that of a G.652B fiber.\nGeometrical parameters of G.652D fibers offered by leading optical fiber manufacturers have improved in their performance compared to their own G.652B fibers. One reason could be their focus on improving the process for G.652D fibers as they know that G.65B fibers will soon be replaced by G.652D. Many of them are able to offer superior characteristics for parameters such as Cladding Non-Circularity and Core Concentricity Error both of which have an influence on the splice loss.\nG.652D fibers claim a major share in the optical fiber market. The demand will keep on increasing in the coming years as many economies are now opening up for the fiber optic backbone infrastructure development. The price of G.652D fiber is almost near to the price of G.652B fiber. The market price for G.652D fiber falls in the range of US$ 9.0 to 11.0 depending on the region and fiber manufacturer.","domain":"optical_engineering"}
{"url":"https://games.lars-projects.com/tutorials-and-tips/2023/06/what-actually-is-ray-tracing/","date":"2024-02-29T09:39:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474795.48/warc/CC-MAIN-20240229071243-20240229101243-00188.warc.gz","language_score":0.9506704807281494,"token_count":623,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__98851840","lang":"en","text":"This is a question you might have asked yourself when shopping for a new graphics card. Nvidia is heavily using this term for marketing but what does it actually mean? Here you will learn.\nWhat does it do?\nTo start with, Ray tracing in gaming is a rendering technique that can realistically simulate the lighting of a scene and its objects by tracing the path of light and how it interacts with different surfaces. Ray tracing can produce stunning effects such as reflections, shadows, global illumination, and ambient occlusion. However, ray tracing is also very computationally intensive and requires powerful hardware to run smoothly which Nvidia uses as a selling point for their high end RTX graphic cards.\nHow does it work?\nContrary to the concept of light in the real world, the light rays in ray tracing algorithms are calculated from the view point or anatomically speaking, the eye, to the light source instead of the other way around. As you can imagine, the field of view of the camera will always be smaller than ALL the possibilities of light rays that bounce off an object which is why this way is much easier on the needed computational power.\nAs an example, you can think of a globe that’s lighted from the top where the camera is placed in front of it. The light rays that would naturally bounce of the back of the globe but are no captured by the camera/viewpoint and would therefore be an unnecessary calculation for the computer.\nNow on its way through the three dimensional simulated scene the light ray will not only go straight to the next light source but the path will also be affected by the objects that are in the way of the light. Depending on the characteristics of the object and the light, the point or pixel that was hit will be displayed bright and lit. Apart from the capability of the object to get illuminated by the ray it is also possible for the ray to change its wavelength better known as the color of the light itself when it hits a colored object for example.\nWith the help of a huge amount of characteristic variables for both the objects as well as the light you can create realistic looking 3D rendered scenes with incredible lighting detail. In most modern ray tracing algorithms the rays are also recursive meaning that once they hit an object the place that they illuminated emits more rays that then can reflect on even more surfaces.\nUsage of Ray Tracing\nAs already mentioned the algorithms needed to process these rays that are calculated as vectors are extremely power hungry. So hungry in fact that a decade ago animation film studios that first started using the technic needed multiple hours to render a single frame. In recent years though thanks to huge steps in the processing power of GPUs and the more efficient algorithms it now is possible to render these complicated computations (at least simplified) in real time with over 60 fps per second.\nRay Tracing is an innovative method of rendering that allows for stunning real time rendered visual effects by calculating vectors that go from the camera to the objects. The technique can be used in animation movies but also in increasingly more video games as consumer GPUs get increasingly powerful.","domain":"optical_engineering"}
{"url":"https://wahooti.london/printed-optical-film/","date":"2022-09-25T10:53:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334528.24/warc/CC-MAIN-20220925101046-20220925131046-00297.warc.gz","language_score":0.9624956250190735,"token_count":178,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__6386156","lang":"en","text":"Printed Optical Film\nInvest in quality, custom-printed optical film.\nHigh performance, maximum impact.\nTake your glass to the next level with custom print solutions.\nGet the effect of a frosted glass installation with Wahooti’s printed optical film. Providing incredible clarity, our printed optical solutions cover glass completely – leaving a smooth, beautiful finish.\nIn December, we had the challenge of having to open a new office space within 6 weeks. We needed frosting completed on all of the external walls to give privacy, but without blocking out all of the light. Wahooti were absolutely brilliant!\nAll we needed to do was provide the design of what we wanted and they did the rest! The installation was seamless and it looked amazing, so we were very happy!Ray\nSee things clearly.\nGet a quote for printed optical film online.","domain":"optical_engineering"}
{"url":"http://www.theeyesiteartesia.com/eyewear","date":"2019-09-23T07:06:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514576122.89/warc/CC-MAIN-20190923064347-20190923090347-00414.warc.gz","language_score":0.8618339896202087,"token_count":106,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__192913760","lang":"en","text":"The Eye Site offers a variety of high quality, designer frames and sunglasses. At our office, we will assist you in finding the perfect shape and style of glasses to flatter your face shape. We stock designers such as:\n- Maui Jim\n- Wiley X\n- Jimmy Choo\n- Tommy Hilfiger\nIn addition, we offer specialty lenses for most frames, including transition lenses, no-glare lenses, and polarized lenses. Specialty lenses can provide extra protection to your eyes and enhance your view.","domain":"optical_engineering"}
{"url":"http://nukon.us/","date":"2017-04-29T17:20:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123549.87/warc/CC-MAIN-20170423031203-00000-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9395341277122498,"token_count":396,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__248864765","lang":"en","text":"The reliable partner for your successful production\nIn the dynamic and constantly changing production sector, Nukon USA knows that the trade mark and the respectable company name are valuable and have the ability to affect the market.\nCertainly every Nukon machine that you purchase will be a long-term investment in your company’s future!\nWe invite you to be a part of the family of Nukon and help us in our mission of changing the future!\nNukon Research and Development test center ......\nHere all the machines are being examined before they are delivered to the customers.\nWe offer to every customer the opportunity to observe the machine’s test performance, in order to be absolutely sure that the machine he is going to buy is working properly.\nNukon Fiber Laser Technology\nThe Fiber laser technology is distinct from that of the standard solid-state laser.\nFiber Lasers are exceptionally powerful!\nThey are made of two of the most innovative and sophisticated laser technologies –optical fiber and semiconductor diodes. In the process, the lasers stimulate diode as the source of light to drive and activate the fiber. The laser ray is generated in the optical fiber and then it is transmitted via the flexible resistant wire. The fibers and rare-earth ions are doped collectively facilitating high power generation of the extremely small core that efficiently creates powerful lasers with superior beam quality. Thus, the fiber lasers are pertinent to amplifying light. The concepts engaged behind these lasers are to some extent the same as those of laser diodes and the gas lasers. The compact style of the laser however helps to prevent alignment concerns as they can come in several forms adding advantages over other lasers. The fiber core has the minimum thickness- only some micrometers. The transmission of the laser ray through the cutting heads and the resonator is passed. There is no requirement for mirrors, thus, the costly replacement of the mirrors can also be avoided.","domain":"optical_engineering"}
{"url":"http://jumpsupply.com/led-medium-cutoff-wallpack-howard","date":"2018-02-18T21:42:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812259.30/warc/CC-MAIN-20180218212626-20180218232626-00245.warc.gz","language_score":0.7801805138587952,"token_count":137,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__162266728","lang":"en","text":"Ideal for parking facilities, entry ways, perimeter and pathway lighting, this fixture gives a high efficient solution to replace 250w HID fixtures. The cutoff design allows for light to be focused more directly, maximizing the efficiency by allowing to use a lower wattage system to exceed the brightness of HID wallpacks.\n|Initial Lumens (lm)||3,375 lm|\n|System Power (Watts)||40 w|\n|Color Temperature (degrees Kelvin)||4,000K|\n|L70 Test||100,000 Hours|\n|Operating Temperature||-30ºC to 50ºC|\nJump Supply © 2016","domain":"optical_engineering"}
{"url":"http://www.c-energy.net/lighting","date":"2019-09-22T23:23:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575751.84/warc/CC-MAIN-20190922221623-20190923003623-00386.warc.gz","language_score":0.9735215306282043,"token_count":199,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__40290569","lang":"en","text":"Lighting comes in various shapes, sizes, colors, and most importantly: technology. These four factors affect energy consumption, brightness, and more. The most-up-to-date technology available in the market today are LED (light emitting diode) lights. LED lights are 85% more energy efficient than traditional incandescent lights. LED lights also last 25x longer. Other energy efficient lights that are common but older in technology compared LEDs are called CFLs (compact fluorescent lighting). CFLs are still more efficient than traditional incandescent lights and have already been popularized by older rebate and incentive programs.\nLED technology has been around for 50 years but only recently has been popularized for it's energy saving abilities and modern design. The high cost associated with LEDs have been a major deterrent for the general public in upgrading to them. Fortunately, this problem has been identified by local utilities and rebates are being promoted to help off-set the costs associated with the LED upgrades.","domain":"optical_engineering"}
{"url":"http://www.surface-technology-germany.de/exhibitor/fhr-anlagenbau/Z134056","date":"2017-12-17T00:23:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948592202.83/warc/CC-MAIN-20171217000422-20171217022422-00412.warc.gz","language_score":0.9141709208488464,"token_count":165,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__213396287","lang":"en","text":"FHR Anlagenbau GmbH is specialised in the development of innovative thin-film coating technologies and vacuum coating equipment and renders various services in the field of thin-film technology. The major field of business is the construction of coating plants which feature a range of vapour deposition, magnetron sputtering, CVD and ALD technologies for industrial production and research applications. These systems are used in many branches of industry, including touchpanel and display industry, optics, electronics, sensor technology, photovoltaics, solar thermal plants, and in the automotive sector. The company takes a leading market position, in particular in the field of roll-to-roll vacuum coating equipment. In addition to plant engineering, FHR manufactures planar and tubular sputtering targets and has a powerful service department.","domain":"optical_engineering"}
{"url":"https://eyecarespecialtiesmn.com/eagan-eye/contacts/","date":"2023-04-02T06:34:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950383.8/warc/CC-MAIN-20230402043600-20230402073600-00088.warc.gz","language_score":0.8909291625022888,"token_count":431,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__201476933","lang":"en","text":"CONTACT LENS SERVICES\nWe maintain a huge inventory of contact lenses in every design to fit anyone, including:\nToric Lenses for Astigmatism\nMost toric lenses are soft lenses that have different powers in different meridians of the lens. That means that the contacts must remain rotationally stable and only move vertically when blinking. Some toric lenses are weighted slightly at the bottom in order to keep the lens from rotating.\nMultifocal Lenses for Presbyopia\nToday, a number of mulitfocal lens options are available that offer clear vision at any distance. Some have a bifocal design with two distinct lens powers and others offer a more natural vision transition.\nDaily Disposable Contacts\nSilicone Hydrogel Contact Lenses\nPopular brands of silicone hydrogel contact lenses include: Acuvue Oasys , Air Optix Aqua, Biofinity and PureVision2.\nExtremely High Prescription Lenses\nEagan Eye Clinic strives to provide the best vision for our patients. As contact lens technology advances, we help provide many suitable options for our patients.\nCosmetic Colored Lenses\nColored contact lenses are considered a medical device by the FDA and require a prescription from your optometrist. If you’re thinking about colored contact lenses, your optometrist can help you select the right type of colored contacts depending on your eye color, quality of vision and desired appearance. Colored contacts should never be shared with anyone.\nRigid Gas Permeable Lenses (RGP or GP)\nPost Surgical Problem Cases\nGas permeable lenses are also used to correct vision problems after corneal transplant surgery, including irregular astigmatism that cannot be corrected with prescription eyeglasses.\nProblem Lenses for Keratoconus\nIn some cases, a soft contact lens is worn under the gas permeable lens for greater comfort. This technique is called “piggybacking.” Another option for some patients is a hybrid contact lens that has a GP center, surrounded by a soft outside edge.","domain":"optical_engineering"}
{"url":"https://www.mt-electrical.co.uk/led-lighting","date":"2020-04-07T12:36:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371799447.70/warc/CC-MAIN-20200407121105-20200407151605-00028.warc.gz","language_score":0.9447529315948486,"token_count":847,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__232920315","lang":"en","text":"You may have heard or read about LEDs (light emitting diodes), but how can they benefit your home?\nLED lights have become more commonly used in homes as they provide numerous advantages over the traditional incandescent and halogen lights. Many LEDs have a rated life of up to 50,000 hours which is approximately 50 times longer than your typical incandescent bulb, 20-25 times longer than the average halogen bulb, and 8-10 times longer than the typical CFL. When used for 12 hours a day, an LED light can last for more than 11 years.\nTo help you understand why LED lights are becoming more commonly used, we have provided some of the advantages of utilising LED lighting in the home or your property:\n- Long Life - Many LED's have a rated life of up to 50,000 hours. This is approximately 50 times longer than a typical incandescent, 20-25 times longer than a typical halogen, and 8-10 times longer than a typical CFL. Used 12 hours a day, an LED will last more than 11 years\n- Energy Efficiency - Today's most efficient way of illumination and lighting, with an estimated energy efficiency of 80%-90%. This means that 80-90%% of the electrical energy is converted to light, while 10-20% is lost and converted into other forms of energy such as heat. This is compared to traditional incandescent light bulbs with an estimated energy efficiency of only 20% meaning 80% of the electricity is lost as heat\n- Ecologically Friendly - LED lights are free of toxic chemicals. Most conventional fluorescent lighting bulbs contain a multitude of materials like mercury that are dangerous for the environment. LED lights contain no toxic materials and are 100% recyclable, and will help you to reduce your carbon footprint by up to a third. The long operational life span mentioned above means also that one LED light bulb can save material and production of 25 incandescent light bulbs. A big step towards a greener future!\n- UV Emissions - LED illumination produces little infrared light and close to no UV emissions. Because of this, LED lighting is highly suitable not only for goods and materials that are sensitive to heat due to the benefit of little radiated heat emission but also for illumination of UV sensitive objects or materials such as in museums, art galleries or archeological sites, etc...\n- Design Flexibility - LED's can be combined in any shape to produce highly efficient illumination. Individual LED's can be dimmed, resulting in dynamic control of light, colour, and distribution. Well-designed LED illumination systems can achieve fantastic lighting effects, not only for the eye but also for the mood and the mind: LED mood illumination is already being used in aeroplanes, classrooms, and many more locations and we can expect to see a lot more LED mood illumination in our daily lives within the next few years\n- Light Dispersement - LED is designed to focus its light and can be directed to a specific location without the use of an external reflector, achieving a higher application efficiency than conventional lighting. Well-designed LED illumination systems are able to deliver light more efficiently to the desired location.\n- Instant Lighting and Frequent Switching - LED illumination lights up instantly when powered on, which has great advantages for infrastructure projects such as traffic and signal lights. Also, LED lights can be switched off and on frequently without affecting the LED's lifetime or light emission. In contrast, traditional lighting may take up to 2 minutes to reach full brightness, and frequent on/off switching does drastically reduce operational life expectancy\n- Low-Voltage - A low-voltage power supply is sufficient for LED illumination. This makes it easy to use LED lighting in outdoor settings, leisure centres, swimming pools and underwater.\nContact Us for LED Light Installation\nIf you're planning on switching your current lights with a new LED lighting system then our experienced domestic and commercial electricians can help you. Please feel free to get in touch with us to discuss your lighting requirements or to arrange a quotation from our experienced electricians.\nYou can call us on 01283 808432 or you can send us an email through our contact form.","domain":"optical_engineering"}
{"url":"http://www.cctval.cl/index.php/en/projects/sciences/597-upgrade-atlas-en","date":"2020-07-11T07:27:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655924908.55/warc/CC-MAIN-20200711064158-20200711094158-00343.warc.gz","language_score":0.8556942343711853,"token_count":230,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__3764094","lang":"en","text":"The Mirror Project seeks to master the fabrication techniques for making lightweight mirrors with a backing material of carbon-fiber–reinforced polymer (CRFP) used in large scale particle detectors such as the Ring-Imaging Cherenkov (RICH) detector.\nThe objetive is to develop manufacturing capacity for the production of lightweight mirrors, used in Particle Physics and astrophysics research. These mirrors are a component of particle detectors capable of detecting subatomic particles with positive or negative charge passing through a transparent medium, and which can be used in High Energy Physics research, nuclear physics experiments, and Astrophysics studies.\nIn the first stage of the project, a prototype will be manufactured with the appropriate smoothness, dimensional accuracy, and reflectivity features. In order to fabricate the mirrors it is necessary to construct a layup form or “mandrel” to shape each of the mirror parts, a physical vapor deposition (PVD) chamber to deposit a reflective layer and a protective layer of materials such as aluminum and silicon oxide, and a polishing station needed to achieve an optical-quality surface on the mandrel.","domain":"optical_engineering"}
{"url":"https://covenantcable.com/fiber-optics/","date":"2023-10-02T18:02:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511002.91/warc/CC-MAIN-20231002164819-20231002194819-00833.warc.gz","language_score":0.8892123699188232,"token_count":296,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__224400656","lang":"en","text":"Fiber Optic Services\nCovenant Cable offers advanced fiber testing in support of transmission speeds up to 100G, as well as advanced optical technologies including DWDM and CWDM. Fiber Characterization is designed to test the fiber plant to determine the integrity of the fiber and quality of the installation.\nSplicing / Termination\nCovenant Cable utilizes state-of-the-art fusion splicing machines to maintain maximum efficiency and lowest splice loss possible on every fiber span. Our team of professionals terminate each fiber optic cable with high quality, precision connectors to meet and exceed all industry standards.\nFiber Characterization Testing\nFiber Characterization testing process verifies the quality, integrity and transmission speed capacity of your fiber plant through the measurement of key fundamental properties. Our Field Engineers will test your fiber and provide a comprehensive final report with detailed test results and recommendations. In addition to providing valuable wavelength, equipment choice, and capacity threshold information, fiber characterization will help you identify life expectancy and potential issues that could lead to service interruptions and loss of revenue.\nFiber Characterization Tests Available:\n- Optical Return Loss (ORL)\n- Optical Insertion Loss (OIL)\n- Bi-directional OTDR traces, splice/connector loss and reflectance and overall fiber length.\n- Polarization Mode Dispersion (PMD)\n- Chromatic Dispersion (CD) measurements and Zero Lambda identification\n- Attenuation Profile","domain":"optical_engineering"}
{"url":"https://cyberpro.my.id/lasers-fact-and-fiction-revealed.html","date":"2024-04-23T12:13:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818474.95/warc/CC-MAIN-20240423095619-20240423125619-00558.warc.gz","language_score":0.9825201034545898,"token_count":587,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__189728939","lang":"en","text":"The laser was developed in 1958, and since that time it really has been the target of many science fiction movies that use lasers to do everything from opening safes to destroying the world. Although it may be interesting to delve into that type of fantasy from time to time, it is also a good idea for you to understand the different uses of lasers and how they affect our life. It is also a good idea for you to understand that there are different types of lasers that can be used. For example, many lasers use gas as a medium, but solid state laser technology uses a green medium. Interestingly, the solid-state laser is something that is being developed for military use, although it may also have other uses in industry and science.\nWhen you take a look at the many different reasons why lasers are used, it might come as a surprise to you exactly how many times they touch your life on a daily basis. In this article, we are going to discuss some of the ways in which they are used for military, scientific, and medical purposes. We will also discuss some of the industrial uses of lasers. Although this does not provide you with a full list of the laser tools that are available, it can really help you to see how diverse this tool really is.\nAs far as the scientific use of lasers is concerned, this is really one of the more interesting ways that can be considered. Although there are many different ways in which science is using lasers, something that you may enjoy knowing is the fact that there are arrays that are on the moon which can be accessed via laser from the earth. These reflectors arrays were actually put on the moon during the Apollo missions, and today laser beams can be focused on those arrays through large telescopes that are on the earth. This has the ability to give very accurate measurements as to the distance from the Earth to the moon.\nIn the military, lasers are being looked into for use as an energy weapon. There are several different lasers that have been developed which are strong enough to destroy large missiles when they are in flight. They also can bring down various types of artillery, including mortar rounds. This is more of a defensive use of lasers in military but there are also lasers that can be used for offensive uses as well.\nFinally, we can take a look at the way that lasers are used in industry. Some of the laser tools that are more popular in industrial settings include those that measure and those that cut. In either case, you are provided with a more accurate tool when it is designed using lasers that can get measurements that are far more precise than older methods. The tools that cut using lasers are also highly accurate, and these can give you not only a clean cut, but one that is exactly what is needed. Of course, these types of tools continue to evolve and to grow in diversity, but they are something that is used regularly in many different environments.","domain":"optical_engineering"}
{"url":"https://www.sportinglife-turangi.co.nz/products/c-f-cft-10-fish-eye","date":"2023-12-06T08:52:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00397.warc.gz","language_score":0.8913854956626892,"token_count":114,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__226422532","lang":"en","text":"C&F CFT-10 - Fish Eye\nC&F CFT-10 Fish Eye employs the theory of the critical angle of refraction to inspect a fly from a fish's point of view.\n- You can easily observe the inside / outside of the fly's fish window as seen from the fish's eyes on the tying desk with a mirror and water.\n- It is ideal for checking the fly you have tied yourself and for tying demonstrations\n- Fish Eye is a product that uses the principle of the critical angle of refraction of water and air","domain":"optical_engineering"}
{"url":"https://www.q-cells.co.uk/products.html","date":"2018-06-24T18:26:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267867050.73/warc/CC-MAIN-20180624180240-20180624200240-00094.warc.gz","language_score":0.9133996367454529,"token_count":148,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__54209653","lang":"en","text":"Hanwha Q Cells Solar Panels and Solar Solutions TOP PERFORMANCE FOR MAXIMUM POWER\nQ.ANTUM WORLD RECORD: 19,5 PROCENT EFFICIENCY\nQ.ANTUM technology has been developed by us to ensure maximum performance under real conditions, even on hot summer or rainy autumn days. Unlike with many other manufacturers it is not optimised based purely on laboratory tests . To achieve this, the back of the solar cell is coated with functional nano layers. The nano layers act as a mirror that reflects the light into the cell. This allows sunlight to be converted into electricity, which previously has been unused. Q.ANTUM therefore maximises the effectiveness of conventional crystalline solar cells and modules.","domain":"optical_engineering"}
{"url":"https://alicona.kr/10-questions-about-the-ucmm/","date":"2020-11-27T05:27:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141189141.23/warc/CC-MAIN-20201127044624-20201127074624-00542.warc.gz","language_score":0.9087191820144653,"token_count":1407,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__111325744","lang":"en","text":"10 questions on the 1st purely optical coordinate measuring machine µCMM\nBased on the technology of focus variation, the optical coordinate measuring system µCMM combines advantages of tactile coordinate measuring technology and non-contact surface measurement. Complex component geometries with the smallest tolerances are easily accessible and can be measured with the highest accuracy using only one sensor.\nTHESE 10 QUESTIONS ANSWER HOW IT'S DONE\n#1 What is so special about this CMM machine?\nµCMM is the 1st optical coordinate measuring system that enables the measurement of dimension, position, shape and roughness with the highest accuracy using just one sensor. µCMM offers high accuracy over the entire measuring volume 310 x 310 x 310 mm including high measuring point density, which, in addition to dimensional metrology also achieves roughness measurement according to ISO 4287/88 (Ra, Rq, Rz...) and ISO 25178 (Sa, Sq, Sz...). No other available tactile or multi sensor coordinate measuring system can measure both shape and roughness of components with just one sensor.\n#2 How accurate is CMM?\nThe length measuring deviation remains below E=(0.8+L/600) µm in the entire measuring volume and conforms to ISO 10360. The high measuring point density, even over longer distances, enables the measurement of the smallest component tolerances and the precise determination of the position of these individual measurements in relation to each other. This means that it is no longer necessary to measure the entire component optically. Only those surface details that are relevant need to be measured. This speeds up overall measurement times.\n#3 How can the accuracy of the CMM machine be verified?\nTwo calibration standards verify the accuracy of the µCMM coordinate measuring system. The µCMM CalibrationTool, made of Invar steel and calibrated by DAkkS (Germany), is designed to measure and verify larger distances. It shows calibrated sphere distances of (mm) 10, 50, 100, 200, 300, 400. The Advanced µCMM CalibrationTool, calibrated by METAS (Switzerland), is used to verify smaller distances and shape deviations.\n#4 How easy is CMM to use?\nµCMM offers simple, intuitive operation, even for several users, e.g. in a production environment. The control runs i.e. via a specially developed ergonomic controller with multi-touch screen. Depending on the task, only the information necessary for the operator is displayed. When teaching-in a measuring task, this is the measurement field; when changing objective lenses, it is the available lenses. In addition, different speed modes allow either fast rough positioning or focusing on the component detail to be measured.\n#5 Does CMM offer an automatic change of objective lenses?\nYes. µCMM includes an automatic objective lens changer rack, which has several advantages over conventional coordinate measuring machines. Stationary magazines, as they are usually used in tactile CMMs or multi-sensor measuring systems, reduce the usable measuring volume. With the µCMM optical coordinate measuring system, the usable measuring volume is identical to the travel volume.\nµCMM with automatic objective lens changer rack: The sensor automatically selects the correct objective.\n#6 Which surfaces and materials can be measured with the optical CMM machine?\nThanks to the \"SmartFlash\" illumination technology, the µCMM is suitable for matt to smooth, highly polished components. The core of SmartFlash is the modulated illumination during the vertical scanning process. Each individual measuring point is optimally illuminated in order to obtain robust and high-resolution 3D depth data. This means that surface defects can also be measured on smooth surfaces, i.e. glass, below 0.01µm.\n#7 What hardware components are used?\nThe XYZ axes use market-leading Zerodur Heidenhain scales with a resolution of 3.9 nm. The accuracy of the axes in combination with the solid granite construction and active temperature compensation also enable use in production. In addition, the stability of the measuring system is increased by the air-bearing axes with wear-free drive (linear drive). µCMM can be extended from 3 to 5 axes by means of an automatic rotation and tilt unit.\n#8 What are the advantages of extending the CMM to a 5-axes system?\nAn automatic rotation and tilt unit \"Advanced Real3D Rotation Unit\" extends the 3-axes system by a 4th and 5th axis. This opens up automation options for measurements without re-clamping. Also, it increases accessibility to measuring positions on complex components. The rotation unit can be equipped with three jaw, 3R or Erowa clamping systems.\n#9 Does CMM allow full measurement automation?\nYes, in combination with the Automation Manager automation interface µCMM enables the complete automatic measurement and evaluation of components. Measurement programs for both roughness measurement and form measurement can be automated quickly and easily. An administrator defines the necessary measuring programs which are started by a worker (as of example in production) at the push of a button. Selection of the programs to be measured is done via a dropdown menu or a barcode scanner. Further interfaces such as CAD CAM connection enable networking and communication with existing production and quality management systems according to the Smart Manufacturing production concept.\n#10 Can the CMM coordinate measuring machine also probe sideways, e.g. to measure holes?\nYes, thanks to µCMM it is for the first time possible to measure holes optically. The measurement is based on the use of the complete light cone. This causes individual light beams to be reflected even by vertical surfaces and captured by an objective lens. This means that flanks with more than 90° are traceably measured in high accuracy and repeatability. The maximum ratio of diameter to depth ranges from 1:3 to 1:10 mm. For complex components such as injection valves, the orientation of the individual holes to each other is also measured in combination with Real3D.\nFind out more about the µCMM\nAre your cutting tools competitive?\nThe following white-paper shows how optical 3D measurement technology can help to identify ideal tool and machining parameters and thus meet customer requirements.\nIn this webinar you will learn how dimension, position, shape and roughness of complex geometries can be measured with only one sensor. Furthermore, you will receive information on the latest development of the core technology focus variation - 3D hole measurement.\nGear shaft inspection with the 3D coordinate measuring machine\nThis report shows measurement results measured with the µCMM - the world's first optical-only 3D CMM. The measuring object is a faulty gear shaft, measured with the µCMM and a rotation unit (Real3D).","domain":"optical_engineering"}
{"url":"https://dvdpris.com/an-expert-explains-the-technology/","date":"2022-10-07T02:15:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337906.7/warc/CC-MAIN-20221007014029-20221007044029-00327.warc.gz","language_score":0.9429852366447449,"token_count":1364,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__54270766","lang":"en","text":"WASHINGTON — Russia is building a new ground-based laser facility to interfere with satellites orbiting overhead, according to a recent report by The Space Review. The basic idea would be to dazzle the optical sensors of other countries’ spy satellites. Fill them with laser light.\nLaser technology has developed to the point where this type of anti-satellite defense is plausible, although there is little evidence that any country has successfully tested such a laser.\nIf the Russian government is able to manufacture the laser, it will be able to Protect a large part of the country out of sight of satellites with optical sensors. The technology is also setting the stage for the more ominous possibility of laser weapons that could permanently disable satellites.\nhow do lasers work\nA laser is a device for producing a narrow beam of directed energy. The first laser was developed in 1960, and many types have been created since then that use different physical mechanisms to generate photons or particles of light.\nGas lasers pump large amounts of energy into specific molecules, such as carbon dioxide. Chemical lasers work with specific chemical reactions that release energy. Semiconductor lasers use custom crystalline materials to convert electrical energy into photons. In all lasers, photons then propagate by passing through a special type of material called an amplifying medium and then focused into a coherent beam. Beam director.\nDepending on the intensity and wavelength of the photon, the directed beam of energy created by a laser can produce a variety of effects on its target. For example, if the photons are in the visible part of the spectrum, a laser can send light to your target,\nFor a high enough flux of high-energy photons, a laser can heat, vaporize, melt, and even burn its target material. The ability to produce these effects is determined by the power level of the laser, the distance between the laser and its target, and the ability to focus the beam on the target.\nThe various effects produced by lasers find many applications in daily life, including laser pointers, printers, DVD player, retinal surgery and other medical surgery procedures, and industrial manufacturing processes such as welding and laser cutting. Researchers are developing lasers as an alternative to radio wave technology to power communications between spacecraft and Earth.\nLasers also find wide application in military operations. One of the most famous is the airborne laser (ABL), which the US military wanted to use to shoot down ballistic missiles. The ABL consisted of a very large, high-powered laser mounted on a Boeing 747. The program was ultimately doomed by challenges associated with thermal management and maintenance of its chemical laser.\nA more successful military application is the Large Aircraft Infrared Countermeasures (LAIRCM) system, used to protect aircraft against heat-saving anti-aircraft missiles. The LAIRCM shines light from a solid-state laser onto the missile’s sensor as the aircraft approaches, causing the weapon to glare and lose track of your goals,\nThe evolving performance of semiconductor lasers has led to a proliferation of new military applications. The US military installs lasers on army trucks and navy ships to defend against small targets such as drones, mortar shells and other threats. The Air Force is studying the use of lasers on aircraft for defensive and offensive purposes.\nThe alleged new Russian laser facility is called Kalina, Its purpose is to dazzle, and therefore temporarily blind, the optical sensors of satellites collecting information above their heads. Like the American LAIRCM, glare consists of saturating the sensor with enough light to prevent it from working. Achieving this goal requires that a sufficient amount of light is delivered to the sensors of the satellite. This is not an easy task, considering the great distance to be traveled and the fact that the laser beam must first pass through the Earth’s atmosphere.\nAccurately aiming lasers at great distances in space is nothing new. For example, in 1971 NASA’s Apollo 15 mission placed meter-sized reflectors on the Moon that are directed by lasers at Earth to provide positional information. Delivering enough photons over large distances reduces the power level of the laser and its optical system.\nKalina would work in pulsed mode in the infrared and would produce about one thousand joules per square centimeter. In comparison, the pulsed laser used for retinal surgery is only 1/10,000th as powerful. Kalina distributes a large part of the photons generated over the large distances where the satellites orbit above. It’s able to do this because lasers create highly aggregated beams, which means the photons travel in parallel so the beam doesn’t spread out. Kalina focuses her beam using a telescope whose diameter is several meters.\nSpy satellites using optical sensors operate in low Earth orbit at an altitude of a few hundred kilometers. These satellites usually take a few minutes to pass through a specific point on the Earth’s surface. This requires Kalina to be able to work continuously during this time while maintaining constant tracking on the optical sensor. These functions are provided by the telescopic system.\nBased on the purported description of the telescope, Kalina could target an airborne satellite hundreds of miles in its path. that would make it possible protect a very large area, on the order of 40,000 square miles (about 100,000 square kilometers), from intelligence gathering by optical sensors on satellites. Forty thousand square miles is about the size of the state of Kentucky.\nRussia claims that in 2019 it introduced a less capable truck-mounted laser glare system called PresvetHowever, there is no confirmation that it has been used successfully.\nLaser power levels are likely to continue to increase, allowing the momentum to go beyond the temporary glow effect to permanently damage sensor imaging hardware. While the development of laser technology is moving in this direction, there are important policy considerations associated with using lasers in this way. The permanent destruction of space sensors by a nation could be considered an act of aggression, resulting in a Rapid increase in voltage.\nlaser in space\nThe potential deployment of laser weapons in space is of greater concern. Such systems would be very effective because the distances to the target would be greatly reduced and there would be no atmosphere to weaken the beam. The power level required for space lasers to cause significant damage to spacecraft would be significantly reduced compared to ground-based systems.\nAdditionally, space lasers can be used to target any satellite by aiming the lasers at propellant tanks and power systems, which if damaged would render the spacecraft completely inoperable.\nAs technological advancements continue, the potential for the use of laser weapons in space is growing. So the question is, what are the consequences?\nOriginal article on The Conversation","domain":"optical_engineering"}
{"url":"https://lv.beautyimaginespace.com/products/dual-led-technology-nail-lamp-white-54w","date":"2023-11-28T20:36:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099942.90/warc/CC-MAIN-20231128183116-20231128213116-00325.warc.gz","language_score":0.7945287823677063,"token_count":185,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__46323207","lang":"en","text":"Excellent PRO Master Line, 54W\nIntelligent Lamp Dual LED Excellent PRO Master Line with a power of 54W built on the basis of new generation dual LED / UV LEDs.\nThe patented technology of Dual LED diodes emits light with wavelengths of 365 nm, 405 nm. The lamp can cure all types of hybrid gels and varnishes with both UV and LED photo initiators.\n- Power supply: DC 24V\n- Maximum power consumption: 54W\n- Rated Input 100-240V, 50/60 Hz\n- Working modes: standard, low heat mode, double power\n- Built-in timer: 10s, 30s, 60s, 99s\n- Hands sensor\n- High power LED\n- Number of LEDs: 36 pcs of DUAL LEDs\n- Band of light: 365nm, 405nm\n- Size: 236mm x 210mm x 110mm","domain":"optical_engineering"}
{"url":"https://ourlifeelevated.wordpress.com/","date":"2021-10-26T12:57:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587877.85/warc/CC-MAIN-20211026103840-20211026133840-00703.warc.gz","language_score":0.9260506629943848,"token_count":1033,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__216262404","lang":"en","text":"Lasers are dope. Chances are you (and your cat) have some experience with low power, household laser pointers – but are you familiar with the wide variety of applications humanity has been using specialized (and more powerful) lasers for? Beyond torturing your cat or dog, lasers have been used as weapons, scientific instruments, and entertainment staples? While the thought of lasers might conjure images of Sci-Fi space battles, their actual applications extend well beyond silver screen fantasy. Let’s check out some of the wildest applications our friend the laser has in today’s world.\n1. Frickin’ Space Weapons\nShort for light amplification by stimulated emission of radiation, lasers are a particularly special breed of light. With a potentially very small focal point, lasers allow for a potentially huge amount of energy to be concentrated in a very small area. Similar to a bullet, which focuses huge amounts energy across a relatively small area, the focal potential of a laser allows them to function as weapons. However, without the need for oxygen to propel a projectile via combustion lasers can function in a vacuum. Which, is probably why we have the phrase “never bring a gun to a space laser fight.”\nBelieve it or not, the Soviet Union had developed a prototype laser pistol to be used by Russian Cosmonauts as early as 1984. The device’s purpose was supposed to be relatively straight forward – point laser at another space man, burn a hole in his or her space suit, sit back and laugh as the vacuum of space does the actual murdering for you. Well, as history would have it, space fights never became a thing, and modern day Cosmonauts carry normal pistols, which are surprisingly employed to protect returning Cosmonaut’s from potentially dangerous animals on the ground.\n2. Frickin’ Gravity Detectors\nIn a complete 180 from space weapons, lasers have also been employed in the more peaceful area of advanced sciences. One such device, the Laser Interferometer Gravitational-Wave Observatory, or LIGO for short, detects the ultra-subtle effects of gravity (both terrestrial and extraterrestrial).\nLIGO works by detecting the effects gravitational waves on the path of a laser. These ultra teeny-tiny effects on the beam create a sort of signal that can be used to measure gravity itself. This device is particularly awesome given the almost in-observable nature of gravitational waves. While we can drop an object and watch it fall due to the effect of gravity, devices like LIGO can actually measure the waves that cause this interaction. Dope.\n3. Frickin’ Medical Lasers\nAgain, lasers have found applications that are beneficial to mankind in the field of medicine. The same energy and potential damaging effect can be harnessed in a safe manner in surgery. Spinal surgeons sometimes employ C02 lasers that reduce damage to surrounding tissues. As to where the primitive scalpel applies pressure to surrounding cells, Lasers don’t. In fact lasers have the lovely effect of cauterizing the incision it makes, reducing bleeding.\nHell, fiber optic cables allow surgeons to bend a laser beam to increase the dexterity of the device and allow for greater precision in surgery. To be fair, this is more or less a humanitarian application of laser space weapons. Instead of burning a hole in a person, in the hopes that it will die, these lasers burn holes in people to help speed their recovery and ultimately to improve their life. Try doing that with a gun!\n4. Frickin’ Industry\nLasers can destroy and help heal, but they also help us build as well! The industrial applications of lasers are varied, ranging from fabrication, CNC, and even maintenance of machinery. Lasers can quickly and efficiently cut metals into shape, create screwholes and other anchor points, and carve ornamental designs.\nLaser engraving allows for quick decorative flourishes on the back of iPods and iPhones, while more powerful lasers can sheer through sheet metal like butter. Hell, lasers can even weld things together if that’s what you’re into! Oh, and on a more boring note, lasers facilitate bar coding system, so next time you’re stuck behind the guy who has 20 items in the express lane at the grocery store, thank your bro, the laser, for speeding up your wait!\n5. Frickin’ Stage Effects\nIf you’ve gone to any concert worth its metal, chances are lasers were center stage. Since the color of the beam itself is easy to control, it is possible to put together an epic light show. Automated mounts can control the direction and speed of a huge amount of individual laser beams, which can create some wildly awesome effects. Some might even say that lasers have revolutionized the way that humanity blows its mind.\nInstead of describing it, I’ll just let you check out an example for yourself below – the action really gets started around 1:15 in.","domain":"optical_engineering"}
{"url":"http://againdia.com/products.php?main_category=7&products_for=63&call=show&id=63","date":"2020-11-25T14:21:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141182794.28/warc/CC-MAIN-20201125125427-20201125155427-00481.warc.gz","language_score":0.8674578666687012,"token_count":172,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__170230718","lang":"en","text":"A stable round base with square stage provided with jointed eyepiece carrier for free movement on the total stage area. With removable hand rests. Focus by rack & pinion. Two 10x & 20x eyepieces provided. Complete with stage clips and plano concave reflector. Packed in wooden box.\nDISSECTING MICROSCOPE, 1102\nSame as per Cat. No. 6000 but export quality.\nDISSECTING MICROSCOPE (BULLS EYE), 1108\nSimilar to Cat. No. 6000 but with a special lens dia. 75mm to increase field of view. The bulls lens carrier is replaceable with normal eyepiece carrier complete with normal eyepieces 10x & 20x and a bulls lens carrier. Packed in wooden box.","domain":"optical_engineering"}
{"url":"http://www.mission3-dgroup.com/","date":"2013-05-25T17:12:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705976722/warc/CC-MAIN-20130516120616-00043-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8740705251693726,"token_count":448,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__89376883","lang":"en","text":"3D Glasses, 3D photography, photo 3d galleries all at Mission3-DGroup.com\nThe Mission3-D facilities in Tripoli, Lebanon house a Photo3-D RC 3d Glasses factory for producing the highest quality durable and stylish Photo3-D RC 3d glasses. Using Mission3-D�s patented designs and patented advanced RC spectrums; Mission3-D produces the Photo3-D RC 3d glasses that boast the sharpest view, maximum light and color retention in the world.\nMission3-D�s Lebanon�s facilities are capable of producing 2 million pairs Photo3-D of RC 3d glasses per month. Along with Mission3-D�s Hong Kong factory, Mission3-D can increase production to produce up to 6 million pairs of Photo 3D RC 3d glasses per month when required.\nMission3-D�s high quality standards, style and attention to details in its products all-but erased the notion behind the old statement of �those cheap 3-D glasses� often said about 3-D glasses produced by other factories.\nThe Photo3-D Ultra-Dure RC800 series paper 3d glasses:\n1- Engineered with maximum comfort wide-eye windows with\n40% more lens area\n2- High-end calibrated RC film spectrums\n3- 99.9% exact film production system\n4- Thick 3 micron lenses\n5- Double-sided protective plastic coating for maximum durability\n6- Patented stylish design\nMission3-D produces 4 patented Ultra-Dure Photo 3D glasses designs:\nRC800 3d glasses, RC801 3d glasses, RC832 3d glasses, RC850 3d glasses. 3D photos\nare just like regular digital photos.\nYou can print them, save them, email them - the only difference is that, like watching a 3D movie, to see the 3D effects you have to wear the 3D glasses\nuses the services of several top Photo3-D certified photographers and provides its professional Photo3-D photography services to its clients on a case by case basis and as part of its total solution offering.","domain":"optical_engineering"}
{"url":"https://telefonatbns.com/seeing-the-light-why-lighting-matters-in-interior-design.html","date":"2024-04-13T15:43:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816820.63/warc/CC-MAIN-20240413144933-20240413174933-00001.warc.gz","language_score":0.9205013513565063,"token_count":972,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__129369482","lang":"en","text":"Light has intrigued man since the dawn of time. Without light, there is no color. In his quest for the control of light, man supplemented daylight with an array of artificial devices. What started out as tallow candles and gas lamps in the early centuries evolved into to a plethora of light sources powered by electricity, chemicals or combustion in the modern day. While the physical attributes of light fixtures contribute to the design of a space, the intangible aspects of the light they emit are more far reaching.\nIn order to understand light and how it affects color, one needs to know that color perception is the result of the eye seeing a specific reflected ray of color. A carpet appears red only when all other colors of the light spectrum, with the exception of red, are absorbed by the flooring, allowing the eye’s sensors to receive the reflected red light.\nLighting essentially determines color. Different types of light accentuate different areas of the spectrum: the red carpet viewed under cool fluorescent light with a heavy blue-green spectral distribution will look dull and lifeless, while it will look warm and vibrant under an incandescent fixture. Color selections by remote often lead to surprises because of the project site’s specific orientation to the sun and lighting conditions. To minimize the problem of color shifts, it is imperative to view materials on site, under the lighting expected for the installation.\nThe lighting design concept which advocates creating “pools of light” in a space is especially germane amidst our current focus on energy conservation. By accentuating key areas through a combination of brighter colors and higher illumination levels in a relatively dark space, the eye is drawn only to areas deemed important to the design solution. Another approach, stemming from a more practical standpoint, is to create “layers of light”. In this instance, lighting in a space is controlled by separate switches and dimmers so it can be lit either in sections, segregated by task, or in its entirety. This avoids over-lighting and allows for flexible lighting control. Carefully deployed, one can create a sense of drama, ceremony and cadence through these lighting techniques.\nDarkness, the antithesis of light, is an important element in lighting design. Shadows not only help define a space, but through contrast, expand the sense of scale and emphasize the sculptural quality of any object being illuminated. Thoughtfully applied, they can be an effective remedy for awkwardly shaped spaces. Alternatively, should the perimeter of a room be illuminated, the space psychologically appears to be bigger and more relaxing to the occupants.\nAdditionally, good interior design should provide adequate lighting. The amount of light needed must be determined in conjunction with the task and visual acuity of the user. As human vision starts deteriorating after age 40, the baby boomers will be driving the need for more efficient lighting as they require increasingly brighter environments.\nRegardless of the lighting source, the general trend is towards eco-friendly lighting fixtures that are energy efficient and sustainable. Despite improvements in LED lighting technology, fluorescent and incandescent lamps remain the dominant choices for interior lighting applications. LED lights are still primarily used in landscape lighting as issues of cost, lamp quality and color rendering have prevented mass adoption. However they are poised to become a significant part of the market in a few years when innovation and demand create light bulbs that are cheaper and brighter with more color choices.\nImprovements in the color rendering of standard cold white fluorescent lamps have given rise to a wide range of products such as full spectrum, deluxe warm white and cool white light bulbs. Additionally electronic ballasts now allow easy dimming while alleviating the issues of lamp flicker, making fluorescents a more attractive lighting option. With their efficient light output and low cost, they remain the most economical way of providing uniform, shadow frees lighting over an extended period of time.\nOn the incandescent front, low voltage tungsten halogen lamps remain popular as they produce a brighter, whiter, more efficient light than conventional incandescent bulbs. The halogen lamp’s compact lighting source makes objects like glassware, mirrors, and gems sparkle and come alive. Although light from a halogen lamp warms noticeably when dimmed, the lamp life is extended significantly, thereby delaying its inevitable trip to the landfill.\nAdvances in lighting products have enabled designers to create more dramatic interiors that are responsive to the functional needs of the user. A successful design can modulate the quality and quantity of light to address the users’ psychological and physiological needs. Indeed, lighting is one of the most powerful elements of interior design. It is the Rosetta Stone that allows our eyes to see and interpret the world around us: without which will be a built environment devoid of color, contrast, and interest.","domain":"optical_engineering"}
{"url":"https://www.teleshop-electronica.be/cheap/9134-lens-grinding-verified.html","date":"2021-04-17T17:59:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038461619.53/warc/CC-MAIN-20210417162353-20210417192353-00522.warc.gz","language_score":0.8645705580711365,"token_count":2994,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__188592558","lang":"en","text":"Amazon.com: grinding shields Dragon Honor Safety Welding Helmet Welder Lens Grinding Shield Visor Radiation Face Mask. 5.0 out of 5 stars 1. $9.82 $ 9. 82 ($0.98/10 Items) $4.99 shipping\nLens & Mirror Making Best lenses and mirrors are both made by ... Lens & Mirror Making • Best lenses and mirrors are both made by grinding the surface • Start with a mirror or lens blank • For mirrors only surface needs to be good • Typical mirror want pyrex (eg BK7) • Then need a tool blank – poorer glass & softer glass • Place mirror on top tool\nNEWPORT GLASS WORKS, LTD. & NEWPORT INDUSTRIAL GLASS, A FULL ... It is necessary to fasten the lens to the grinding platform. Let the convex blank be worked first. It can be taped around its edge to a block of same diameter using duct tape or masking tape, or it can be placed in a wood holder as in figure 3.\nNAICS 333314 Optical instrument and lens... NAICS Code 333314 - Optical Instrument and Lens Manufacturing is a final level code of the “Manufacturing” Sector. There are 145 companies verified as active in this industry in the USA with an estimated employment of 16,022 people.\nHow Prescription Eyeglasses Lenses are Made / Fit - YouTube Jun 05, 2013 · A blocker is added to the lens so it can be held into the grinder. 4. Grinding: The trace is loaded into the edger and the lens is placed inside. The machine grinds the lens into the correct shape. 5. Views: 287.8KAuthor: Ori TzvielliVideo Duration: 6 minThe Contact Lens Rule: A Guide for Prescribers and Sellers ... The Fairness to Contact Lens Consumers Act gives people certain rights, including the right to shop around when buying contact lenses. The Act also imposes duties on contact lens prescribers and sellers, and requires the Federal Trade Commission (FTC) to develop and enforce implementing rules.\nUS3583111A - Lens grinding apparatus - Google Patents A lens grinding disc of thin sheet material having spring quality, such as brass shim material, is provided with slits extending inwardly from its periphery to enable it to conform to a lens surface when applying a fine abrasive material thereto in a grinding or polishing operation.\nBicentric Grinding - 20/20 Magazine Bicentric grinding, also known as slab-off, is used to correct vertical imbalance. Typically, slab- off can be used to correct vertical imbalance over 1.5 diopters. Bicentric grinding means we are creating two optical centers on a lens. ‘Bi’ meaning two, and ‘centric’ meaning center. Bicentric grinding or slab-off is used to neutralize an unwanted prismatic effect caused by unequal ...\nBest value Lens Grinding Machine – Great deals on Lens ... 2020 popular Lens Grinding Machine trends in Tools, Cellphones & Telecommunications, Watches with Lens Grinding Machine and Lens Grinding Machine. Discover over 134 of our best selection of Lens Grinding Machine on AliExpress.com with top-selling Lens Grinding Machine brands. Shop the top 25 most popular Lens Grinding Machine at the best prices!\nHow eyeglass lens is made - material, production process ... The machine grinds each lens to its proper shape and places a bevel around the edge of the lens so that the lens will fit the eyeglass frames. Water flows over the lens throughout this process. 10 If the lenses require additional grinding, the process is done by hand using a mounted power grinder.\nPolishing & Grinding Services - United Lens Polishing & Grinding Services . United Lens Company employs the latest technology and techniques from high speed double side polishing, single side precision polishing, cylindrical and spherical polishing for all of your custom substrates. ULC grinds, polishes, and finishes optics with consistent and unsurpassed accuracy.\nHow Prescription Glasses Lens are Made / Fit - #4 Grinding ... Jun 05, 2013 · Grinding: The trace is loaded into the edger and the lens is placed inside. The machine grinds the lens into the correct shape. For more information on prescription eyewear, visit Perfect Glasses ... Views: 12.3KAuthor: Ori TzvielliVideo Duration: 3 minLens Grinding and Polishing - YouTube Jun 27, 2013 · Photon Camp 2013 Per Adamson of University of Rochester demonstrates the process of polishing an optic. Note: The second machine in the video is the grinding machine. The three glass pieces are ... Video Duration: 31 secViews: 10.9KAuthor: URPhotonCampTiny lenses | Lens on Leeuwenhoek Compared to grinding, this method produces smooth lenses, \"every where very round and smooth\", according to Butterfield. Plus, you can make dozens of these tiny lenses in an evening and then use a larger low-powered lens to see which of the tiny lenses are the most spherical and free of imperfections. Then Leeuwenhoek had a new problem.\nUltra-precision grinding of optical glass lenses with La ... Ultra-precision grinding of optical glass lenses has been studied for decades. Stephenson et al. ground BK7 optical glass with electrolytic in-process dressing (ELID) grinding using a cast iron-bonded cup and achieved a surface nearly free of cracks.\nCNC Optical Grinding Machines | OptiPro CNC Optical Grinding Machines Improve the quality of your surfaces along with your bottom line. In the world of precision grinding, accuracy, speed, and ease-of-use can coexist. Save time and money with fast job setups, optimal cycle times, and quick turnaround times.\nDIY grinding a glasses lens to a small circle: DIY and Photo ... Jun 24, 2016 · Re: DIY grinding a glasses lens to a small circle In reply to Fabrice Lamidey • Jun 30, 2016 I take that a 19mm drill would yield something about 14mm inside.\nChina Optical Grinding Machine, China Optical Grinding ... Old Store New Price! 4002C 2D patternless automatic lens edger * Feature making lenses with automatic scanning and patternless design, and including the traditional lens that is made by using a template Material: Glass lens,Resin lens,Polycarbonate lens Function: Grooving,polishing,and beveling Flat edge: Φ18 (extreme small)- Φ80 Sharp edge: Φ20mm (extreme small)- Φ80mm Radius for the ...\nWolverine Grinding System with VARI-GRIND jig - - Amazon.com The Grinding Jig comes with two bases - grinders come with two wheels, so we include two bases. Vari-Grind The Wolverine Vari-Grind will properly shape and maintain the edge on standard bowl gouges, the modern side grind (also known as the Ellsworth grind, Liam O'Neil, or Irish grind), and the traditional fingernail shape for spindle work ...\nOptical Glass Lens Grinding Polishing Tools - newdiamondtools Optical Glass Lens Grinding Polishing Tools Diamond tools are used in the milling, finishing, super finishing, polishing and edge grinding processes of optical elements. Compared with common abrasives such as corundum, silicon carbide, ect., diamond tools have high grinding efficiency.\nAuto Welding Lens for sale | In Stock | eBay Get the best deals on Auto Welding Lens when you shop the largest ... #26 Solar Auto Darkening Welding Helmet TIG MIG Welder Lens Grinding ... Authenticity Verified.\nChina Optical Glass Ball Lens, Optical Glass Ball Lens ... China Optical Glass Ball Lens manufacturers - Select 2020 high quality Optical Glass Ball Lens products in best price from certified Chinese Optical Glass Lens manufacturers, China Microscope suppliers, wholesalers and factory on Made-in-China.com\ngrinding face shield products for sale | eBay Get the best deals on grinding face shield when you shop the largest online ... Safety Welding Helmet Welder Lens Grinding Shield Visor Face Mask Protector ...\ngrinding face shield products for sale | eBay Get the best deals on grinding face shield when you shop the largest online ... Welding Helmet Weld Welder Lens Grinding Shield Visor UV ... Authenticity Verified.\nFabrication and testing of optical components - Wikipedia Precision lenses for use in applications such as lasers, interferometers, and holography have surfaces with a tenth of a wavelength (λ/10) tolerance or better. In addition to surface profile, a lens must meet requirements for surface quality (scratches, pits, specks, etc.) and accuracy of dimensions.\nRoger Ceragioli 's Refractor Construction Page - Astronomy What Focal Length and type lens do you want to build. Grinding start: Initial hogging of the glass and making grinding tools. Correcting for center and wedge: What Focal Length and type lens do you want to build. Polishing the Lens: Polishing out the lenses and notes on milling rouge. Figuring the Lens: Figuring and initial testing of the lens.\nOptivision Laboratory Management System – Optivision Inc. If the Rx is being entered from a lens pick ticket, the stock room clerk will put the lenses selected in the tray. Using a bar code wand, the clerk scans the tray, then scans the right and left lenses. The system will check to see that the lens picked conforms in all pertinent respects. The following items are verified: Lens style ; Lens material\nMachinery for Optical Lens Industry - Optical Glass CR Lens ... Manufacturer of Machinery for Optical Lens Industry - Optical Glass CR Lens Edge Grinding Cutting Machine Ske-Ahe., Optical Hand Edger, CR PC Lens Cutter Machine and Optical Glass Cutting Grinding Machine offered by S. K. Enterprise, Ahmedabad, Gujarat.\nOptrel Clearmaxx Clear Cover Lens 5000.038 Optrel® Clearmaxx Polycarbonate Clear Cover Lens 5000.038 Package of 10 - Genuine Optrel® Clearmaxx replacement clear grinding lens for your Optrel Clearmaxx grinding helmet. Full face lens is made from 100% polycarbonate to resist impacts associated with grinding, metal working and wood working operations.\nLenses - Engineering and Technology History Wiki Lenses were produced by grinding them against a metal tool called a \" lap,\" which had been produced using a lathe. Convex lenses required a lap having a portion of a hemispherical cavity. A male form was used for concave lenses. The laps could be made from any metal, since hardness was not a major factor.\nHow camera lens is made - material, manufacture, making ... The camera lens is an invention that attempts to duplicate the operation of the human eye. Just like the eye, the lens sees an image, focuses it, and transmits its colors, sharpness, and brightness through the camera to the photographic film, which, like our memory, records the image for processing and future use.\nEP0196114A2 - Lens grinding apparatus - Google Patents 57 A lens grinding apparatus comprising edge thickness measuring means for, in a photoelectrical and non-contact manner, measuring the edge thickness of the lens to be ground after completion of rough grinding, and a computing means for computing a predetermined position of the lens edge as a distance value from a predetermined movable origin in the direction of the axis of the lens shaft of ...\nOptrel Clearmaxx Face Shield w/ e3000X PAPR - 4900.251 ... The e3000x PAPR system with the Clearmaxx helmet offers the ultimate protection and filtration. Filters 99.8% of particles to keep you safe. The easy to change DIN5 front cover lens expands the system to the perfect protector for efficient plasma cutting, grinding, and all around protection. Work all day with the 18 hour battery life.\nWelding Mask Lenses products for sale | eBay Buy Welding Mask Lenses and get the best deals at the lowest prices on eBay! Great Savings & Free Delivery / Collection on many items\nHistory of photographic lens design - Wikipedia The invention of the camera in the early 19th century led to an array of lens designs intended for photography.The problems of photographic lens design, creating a lens for a task that would cover a large, flat image plane, were well known even before the invention of photography due to the development of lenses to work with the focal plane of the camera obscura.\nNext: good quality hot sale in africa big jaw crushers\n- japan grinding cement mill\n- olx machine knife grinding machine\n- mining supply grinding media\n- bauxite grinding manualbauxite grinding manufacturer\n- 100 mesh grinding mill\n- used grinding mainly\n- wet grinding heavy\n- grinding machine smooth\n- roller grinding mill for mineral prosessing\n- cement grinding mill indonesia for sale in france\n- grinding machines 4 5 inch esab\n- crankshaft grinding wheels\n- laser grinding stone in the kidney clinic novosibirsk\n- cement grinding units in india basalt crusher\n- grinding machine file\n- equipment solution hippo grinding mills in zimbabwe for sale\n- copper grinding manufacturer\n- ball mill for lime grinding customer case\n- 2018 grinding mill powder coal raymond mill\n- grinding machine guards india\n- gold miner list distributors in india\n- ime indonesia product crushing jaw crusher\n- quartz processing equipment sri lanka\n- cone crusher quarrying of stones process\n- basalt jaw crushing station in uae\n- piston jig in mineral processing sierra leone\n- flotation machines full ball mill at industral level with uses\n- hancur crusher\n- grinding process manufacturing ultratech concrete cement\n- drum crusher machine dubai customer case\n- mobile roll crusher south africa\n- pretoria gold wash plant manufacturers\n- roll double roll crusher european manufacturers\n- crude palm oil mill in indonesia\n- golden supplier industrial electric magnetic vibrating feeder\n- soda ash complete\n- precipated calcium carbonate plant consultants in india\n- ore beneficiation plant details\n- supply of aggregates in india\n- concrete crusher lancaster pa","domain":"optical_engineering"}
{"url":"https://moorfield.co.uk/knowledge-base/thin-film-bragg-reflector-for-a-monolithic-gaas-device-with-process-optimised-minilab-pvd-systems/","date":"2023-12-02T18:53:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100448.65/warc/CC-MAIN-20231202172159-20231202202159-00695.warc.gz","language_score":0.9120111465454102,"token_count":980,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__77996456","lang":"en","text":"A leading UK semiconductor device research group at the University of Glasgow approached us with a requirement for an RF magnetron sputtering tool. It was to have the capability of producing an all-thin-film interference device to give a specific reflectivity on the surface of GaAs wafers used to fabricate laser diodes. The requirement specification was arrived at by modelling a notional thin film stack reflectivity performance on the surface of a crystalline wafer. This technique is very often used in the world of glass optics to achieve modifications which can manipulate the optical transmission and reflection of surfaces.\nThe Reflector Design\nUsing a proprietary modeling package we could determine the stack design needed to produce the reflectivity specification. That specification was to be a minimum of 60% reflectivity at normal incidence and at 765 nm on crystalline GaAs. Selection of a silicon target with the capability to switch between a gas inlet of oxygen or nitrogen (or a mixture), as well as argon for the plasma, would give the capability to produce silicon oxides, silicon nitrides and mixed oxy-nitrides. SiO2 has a visible/NIR refractive index of around 1.45 and Si3N5 has an index close to 2. These numbers are ideal for a simple stacked reflector like this:\nAnd theoretically this stack gives a reflectivity like this:\nThis became our starting point….\nThe first thing that the practical fabrication of all such structures requires is the deposition of single layers of material with physical and optical characteristics that will enable us to build the device. That means we need homogenous, continuous thin films of the individual materials which adhere to a substrate, won’t peel or rub off and, for optical devices like this, will have substantially the correct refractive index and are free from optical absorption. To this end, we specified and built a system based on the MiniLab 125 platform. With the machine built and operational, we moved on rapidly with deposition experiments…\nIn fact, RF sputtering on its own is not entirely suitable for dielectrics like this. Their deposition rate is slow, crystalline micro-structure can be poor and without careful design of the deposition chamber, target contamination can be a showstopper. However, Moorfield has many years’ experience in this kind of work, so we weren’t exactly starting from scratch.\nVery quickly it became apparent that ambient substrate temperatures, although leading to physically well-structured films, would always give us optical absorption. Some substrate heating dealt with that problem and once the quartz test pieces were heated to 200 °C, optical absorption disappeared as a result of improved micro-crystalline structure and compositions close to stoichiometry. Quartz test pieces? GaAs isn’t transparent at 765 nm, so there is no choice other than to deposit initially onto something else.\nWith a set of deposition parameters ready to give us transparent films, we then needed to calibrate for tooling factor – the relationship between deposition parameters and the deposited thickness on the substrate. Keeping all deposition parameters constant, the tooling factor is simply related to the deposition time – the longer the shutter is open, the more material is deposited. By measuring the thickness of a film and relating it to its deposition time, we can easily calculate the times required to deposit the thicknesses needed in the stack.\nThe one problem in this simple route forward is that we have single layers and test structures on quartz. We wanted the final result on GaAs, of course…\nThat’s a relatively simple thing to modify in the modeling software and when we look at the performance on quartz and the performance on GaAs, we can infer the changes needed to hit the required spec on GaAs. Here’s the final result:\nThe final result gave just over 60% reflectance at 765 nm. Furthermore, across the wafer-scale test pieces (2” diameter) there was no optically measurable non-uniformity! As such, the test work met all the customer’s requirements.\nUsing thin film optics modelling software we can model and design an enormous range of interference devices. This reflector stack was relatively simple, but it shows exactly what we can achieve for your requirements. Let us know what you need!\nMiniLab Optical Thin-Film Coating Systems\nThe work was carried out using a MiniLab 125 series tool equipped with actively-cooled 3” sources for 3” targets, an RF power supply, substrate heating and rotation, and a process chamber base pressure of <5 × 10-8 mbar. The tool also had a load-lock for fast sample introduction and sustained low base pressures. A pre-deposition etch cleaning module allowed for optimised surface preparation.","domain":"optical_engineering"}
{"url":"https://www.dnt.co.jp/english/products/new-business/","date":"2020-10-30T07:43:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107909746.93/warc/CC-MAIN-20201030063319-20201030093319-00664.warc.gz","language_score":0.8241047263145447,"token_count":401,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__8374131","lang":"en","text":"Metals and inorganic oxides in form of nanoparticles exhibit optical, electric, and many other functions.\nDispersed tin-doped indium oxide (ITO) and dispersed antimony-doped tin oxide (ATO) can be added with an antistatic function by applying a coating to their respective base materials.\n- Different kinds of optical films and antistatic materials\nRefractive index adjustment function\nThe refractive index of dispersed zirconium oxide can be adjusted by applying a coating to the base material.\n- Anti-reflection films, index matching, and different kinds of optical lenses\nLight absorption function\nBecause they are anisotropic (non-spherical) nanoparticles of precious metals, silver nanoplates and gold nanorods absorb specific wavelengths in visible and near-infrared ranges after they undergo shape control.\n- Diagnostic agents, wavelength absorbing materials, reflective materials, and sensing materials\nGold quantum dots emit light when exposed to ultraviolet rays.\n- Diagnostic agents, sensing, and security\nInkjet Coating Systems\nUtilizing our advantage in running both the coatings business and the inks business to propose new coating systems\nWe possess inkjet decoration technologies, coating lamination technologies, and production line management technologies. We offer optimal solutions for forming coating/ink composite coating film based on our knowledge of, and experience with, each material.\nThe key to success in the in-line production of inkjet decoration is mutual adjustment between coatings and inks.\nSchematic of coating film configuration\n- 1.Enables the production line to brought in-house\n- 2.Application to the small lot production of many different products helps to reduce inventory.\n- 3.Combinations of inkjet and coating widen the variety of decorations.\nVariations in decoration\nAdding particular finishes\nAdding particular textures\nFeel free to contact us if you face any problems in ink-jet technologies.","domain":"optical_engineering"}
{"url":"https://googlytech.com/technology-moves-toshiba-toppan-and-blueqat/","date":"2023-10-03T07:18:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511055.59/warc/CC-MAIN-20231003060619-20231003090619-00328.warc.gz","language_score":0.9161120653152466,"token_count":261,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__320858836","lang":"en","text":"- Toshiba researchers have devised a double-transmon coupler, the world’s first tunable coupler that can both completely turn off coupling and operate the two qubit gates at high speed for two fixed-frequency transmon qubits with significantly different frequencies.\n- Toppan presented 2 papers at the IEEE International Conference on Quantum Computing and Engineering (QCE) –\n- “The first paper on optical quantum computing delves into a new method of computation that is expected to lead to the application of quantum error correction technologies, contributing to the realization of high-speed optical quantum computers in the future.” This was developed in collaboration with BlueQat.\n- The second paper deals with a method for evaluating quantum machine learning and conventional classical machine learning. It is expected that using a new method of evaluating learning-model building processes will make learning trends visible and enable the application of machine learning for practical challenges, such as enhancing the accuracy and efficiency of inspection processes at factories.\n- For those who might remember, Toppan announced a partnership with Sigma Eye in 2021. The two companies are piloting a solution to use quantum annealing to increase efficiency for logistics (vehicle assignment and delivery planning, increase speed and accuracy, shorten delivery times).","domain":"optical_engineering"}
{"url":"http://www.leyond.com.cn/product/showproduct.php?lang=en&id=125","date":"2022-01-19T13:48:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301341.12/warc/CC-MAIN-20220119125003-20220119155003-00617.warc.gz","language_score":0.7165205478668213,"token_count":608,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__39725559","lang":"en","text":"WW:2700-3200K NW:4000-4500K PW:5000-6500K\nType of Chips\nPHILIPS LUXEON 5050\nOperation and Storage Condition\n·Operation Ambient Temperature -40 to +50°C, Relative Humidity 20~90%\n·Input Voltage 100~240V AC, 50/60Hz\n·Storage Ambient Temperature -40 to +65°C, Relative Humidity 5~95%\n·Mounting Height : Suitable for 6~15m height\nAssembly and Installation\nØ Blue : Neutral\nØ Brown : Line\nØ Yellow-Green : Ground\nInner box Size: 420mm×415mm×165mm\nOuter box Size: 430mm×430mm×350mm (2 PCS LED Canopy Light)\n• Using philips led chip to ensure high lumen and long life.\n• The shell with the anodic oxidation treatment, strong corrosion resistance.\n• Adoption LEYOND exclusive Lens with light transmittance up to 98%.\n• Perfect Light Distribution Solution：Adoption of integrated shell optic lens, enhance the brightness and illumination uniformity.\n• There are 24°，36°,60°, 90°, 160° beam angle options for the Lens.\n• Scientifically-designed heat dissipater with much better cooling effect.\n• High luminous efficiency， Whole lamp output light effiency >120LM/W.\n• High quality power supply, input voltage 100-240V. The power efficiency is more than 90%, power factor greater than 0.98, UL compulsory certification.\n• For the traditional light source such as the High Pressure Sodium, if the voltage fluctuation ±7%, the brightness and lifetime will be reduced very fast, but for LED light, even the voltage fluctuation is ±20%, the brightness and lifetime will not be influenced at all;Over Current, Over Voltage, Over Heat, Thunder Protection.\n• Impact Resistance, Shock-proof, Without Ultraviolet (UV) and Infrared (IR) Radiation: No filament and glass frames, avoid break of the traditional lamp,without harm to the human body.\n• The CCT of Warm white、Neutral white、Pure white to meet the needs of different occasions, eliminated the low color temperature of the sodium lamp which cause the depressed mood, observers will feel more comfortable","domain":"optical_engineering"}
{"url":"http://www.xperio.com/EN/Xperio-Brand/what-is-xperio/Pages/FAQ.aspx","date":"2016-02-12T12:10:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-07/segments/1454701163729.14/warc/CC-MAIN-20160205193923-00271-ip-10-236-182-209.ec2.internal.warc.gz","language_score":0.8913034200668335,"token_count":651,"dump":"CC-MAIN-2016-07","global_id":"webtext-fineweb__CC-MAIN-2016-07__0__125911249","lang":"en","text":"What is the difference between an Xperio polarizing lens and an ordinary tinted lens?\nOrdinary tints can reduce brightness and provide UV protection (if they are properly treated), but only Xperio eliminate dangerous and blinding glare, offering excellent visual comfort, better clarity of vision, and true color perception.\nDiscover Xperio main benefits through the Xperio Polarized Experience application!\nWhat is polarized light?\nLight is emitted in waves by the sun, or by artificial sources like a light bulb. These waves vibrate and travel in all directions from the source. This “flattened” light is known as “polarized light.” When light bounces off a shiny surface, it can become polarized and enter the eye causing blinding effect.\nClick here to see the virtual demonstration.\nDo Xperio polarizing lenses have any other benefits, other than blocking reflecting glare?\nXperio lenses not only eliminate dangerous glare—even dashboard glare—for greater driving safety but they let you see even the smallest things with greater clarity, true color perception and total comfort. And unlike regular sunglasses, they also virtually eliminate glare, allowing you to see more clearly and comfortably outdoors. In addition to this, Xperio corrective polarized sun lenses completely block UV rays coming from the front and drasticaly reducing UV rays reflected on the rear lens' surface when combined with Crizal Sun UV for an E-SPF 50+ - reducing potential vision damage. That’s one parameter you shouldn’t forget when choosing your next pair of sunglasses.\nWhy would you want a Crizal Sun, anti-reflective coating on the backside of the lens?\nFor the ultimate in crisp, clear vision, ask for Xperio polarized lenses with Crizal Sun™. Crizal Sun is a backside anti-reflective coating designed specifically for sun lenses eliminating bothersome glare and visual discomfort. It protects both the eyes and the lenses. It delivers the famous scratch protection and ease of cleaning of Crizal® technology, optimal protection against reflection on the back surface of the lens, and gives the wearer clearer vision while protecting their investment.\nAre Xperio polarizing lenses only limited to activities near the water (sailing, fishing…)?\nNo, the benefits of Xperio polarized lenses are much wider. They enhance contrast and provide greater color perception than traditional sun lenses for all outdoor activities and for driving.\nWearers will experience superior visual performance and optimal protection in all situations. Xperio polarized lenses offer benefits that include: dangerous and blinding glare elimination, true color perception, unmatched clarity of vision and superior scratch resistance.\nMoreover Xperio lenses eliminate dangerous glare—even dashboard glare—for greater driving safety.\nA recent clinical study measured driver reaction times for Xperio polarized lenses versus ordinary tints and found that driver reaction times were improved by 1/3 of a second. For a car traveling 80 km/h, 1/3 of a second allows a driver to stop a vehicle 7 meters sooner. That’s the length of an intersection and could mean the difference between being in an accident or avoiding one.","domain":"optical_engineering"}
{"url":"http://www.mygoodwatersite.com/e/Products/a1100/index.html","date":"2019-03-26T09:11:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912204885.27/warc/CC-MAIN-20190326075019-20190326101019-00135.warc.gz","language_score":0.7332140803337097,"token_count":270,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__128292753","lang":"en","text":"澳门太阳集团18838n10G SFP+ BIDI 20Km\n10G BiDi SFP+ Transceiver 20KM Single Mode LC 1270nm/1330nm Tx 1330nm/1270nm Rx fit for CISCO Juniper HP switch\n10G SFP+ SR\nHandar SFP+10G-SR, 10Gb/s SFP+ Transceiver module 10G BASE-SR, MMF LC 850nm 300 meters,fit to Cisco Juniper HP switch\n10G SFP+ LR\nCompatible for Cisco SFP-10G-LR; 10GBase-LR SFP+ transceiver for SMF, 1310nm wavelength, LC duplex connector\nHandar’s HD-S3112-2LCD Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in IEEE STD 802.3 and 1x Fibre Channel as defined in FC-PI-2 Rev. 10.0 .They are RoHS compliant and lead-free.\n目:Copper SFP 光模块","domain":"optical_engineering"}
{"url":"http://riverwung444.isblog.net/2-elements-individuals-do-certainly-not-figure-out-in-respect-to-lasik-eye-surgical-treatment-6800920","date":"2019-01-23T15:50:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584334618.80/warc/CC-MAIN-20190123151455-20190123173455-00335.warc.gz","language_score":0.9546250104904175,"token_count":883,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__89576730","lang":"en","text":"2 Elements Individuals Do Certainly Not Figure Out In Respect To LASIK Eye Surgical TreatmentThe eye can be examined with relative ease as to both its function and its structure. A practical evaluation consists of the capability to move in the orbit and the reaction of the student to light and accommodation.\nThe function of the eye might be tested in numerous ways. The client may be asked to identify illuminated letter or objects of varying sizes on what is called the Snellen chart.\nAlternatively, the assessment of the structural part of the eye might be made in a number of methods. Tension within the eyeball is measured by a \"tonometer.\" In certain illness, especially in glaucoma, the stress in the eyeball is increased significantly.\nHowever, it needs to be well bore in mind that a patient with an eye issue may have other issues as well. Often other physical conditions are main and impact the eye as a consequence. The look of the eye can inform the patient and the doctor to problems in some disturbances of other parts of the body even before other signs present themselves.\nOne's dependence on sight is stressed when one deals with a short-term or possible long-term loss of this vital sense. When corrective steps are looked for, certain types of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some individuals are troubled with the reality that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another kind of vision correction. The only distinction is that with this type of surgery, one's vision is remedied permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently changed. This can be done using an \"excimer laser.\"\nThe main function of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that people should know. Most likely, the main factor why this type of eye surgical treatment has ended up being well accepted is since many of its cases had achieved success.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nDue to the fact that LASIK eye surgery involves the operation of the retina, which is among the most delicate portions of the eye, the majority of people state that the operation More Info can be very risky.\nTo puts it simply, a easy error might nearly cause an individual's life time blindness. It is essential to consider many elements prior to deciding whether LASIK eye surgical treatment is the best restorative step one has to go through.\n2. It is not a ideal treatment\nLASIK eye surgery might fix your vision however it does not always imply that it can provide you a best vision. Even if statistical reports reveal that 70% of the patients might have 20/20 vision, this does not necessarily imply they have perfect vision.\nGiven all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgical treatment the method many people see it\nAlternatively, the evaluation of the structural part of the eye might be made in a number of ways. It should be well kept in mind that a client with an eye problem may have other issues. Typically other physical conditions are main and affect the eye as a effect. The appearance of the eye can alert the physician and the client to problems explanation in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://ijarst.com/IJARST20140538.html","date":"2017-11-18T21:04:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805049.34/warc/CC-MAIN-20171118210145-20171118230145-00387.warc.gz","language_score":0.8974746465682983,"token_count":219,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__96311957","lang":"en","text":"Fiber optic systems are important telecommunication infrastructure for world-wide broadband networks. Wide bandwidth signal transmission with low delay is a key requirement in present day applications. Optical fibers provide enormous and unsurpassed transmission bandwidth with negligible latency, and are now the transmission medium of choice for long distance and high data rate transmission in telecommunication networks. This paper gives an overview of fiber optic communication systems including their key technologies, and also discusses their technological trend towards the next generation.\nThe major driving force behind the widespread use of fiber optics communication is the high and rapidly increasing consumer and commercial demand for more telecommunication capacity and internet services, with fiber optic technology capable of providing the required information capacity (larger than both wireless connections and copper cable). Advances in technology have enabled more data to be conveyed through a single optical fiber over long distances. The transmission capacity in optical communication networks are significantly improved using wavelength division multiplexing.\nContact DetailsEditor-in-Chief & Director,\nCopyright (c) 2012, ijarst.com All rights reserved. | Design by Center for Advanced Research.","domain":"optical_engineering"}
{"url":"https://www.visiontriteq.com/solutions/","date":"2024-04-14T19:37:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.9/warc/CC-MAIN-20240414192536-20240414222536-00393.warc.gz","language_score":0.8791788816452026,"token_count":149,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__30447276","lang":"en","text":"GIS professionals work intensively and for long periods which can be stressful on the body and the eyes. At the same time, GIS professionals must be able to interpret images from many sources of varying quality. Using new, patented digital technology, CONTOUR optimizes image quality, depth and ergonomics.\nCONTOUR next generation display delivers a unique high quality combination of image clarity, brightness, consistency, ease of use, and operator comfort. CONTOUR’S 3D full high definition (3D FHD) image provides crisp stereo imagery in a unique, glasses-free, system that ensures the image is delivered precisely, consistently, and accurately, with no flickering, ghosting, or cross-talk.","domain":"optical_engineering"}
{"url":"http://edie4035sgnblog.uzblog.net/2-components-individuals-do-definitely-not-have-knowledge-of-in-respect-to-lasik-eye-surgery-5478329","date":"2019-01-23T22:44:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584415432.83/warc/CC-MAIN-20190123213748-20190123235748-00090.warc.gz","language_score":0.9526481628417969,"token_count":888,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__179799552","lang":"en","text":"2 Components Individuals Do Definitely Not Have Knowledge Of In Respect To LASIK Eye SurgeryThe eye can be examined with relative ease regarding both its function and its structure. A functional assessment consists of the capability to move in the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye might be evaluated in a number of ways. The patient might be asked to recognize illuminated letter or things of differing sizes on what is referred to as the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye might be made in a number of ways. Stress within the eyeball is determined by a \"tonometer.\" In particular diseases, specifically in glaucoma, the stress in the eyeball is increased noticeably.\nNevertheless, it needs to be well remembered that a patient with an eye problem may have other problems also. Often other physical conditions are primary and impact the eye as a repercussion. The appearance of the eye can signal the doctor and the patient to troubles in some disturbances of other parts of the body even prior to other symptoms present themselves.\nOne's dependence on sight is highlighted when one deals with a momentary or possible permanent loss of this important sense. For this reason, when corrective measures are sought, certain forms of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some individuals are bothered with the truth that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to motivate reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgical treatment is another form of vision correction. The only distinction is that with this type of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe main function of this surgery is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing appeal of LASIK you can look here eye surgery, there are still disadvantages that people need to know. Probably, the primary reason why this type of eye surgery has actually become well accepted is because most of its cases had been effective.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is one of the most delicate portions of the eye, the majority of people state that the operation can be very risky.\nIn other words, a easy mistake might practically cause an individual's lifetime blindness. Thus, it is necessary to think about lots of factors prior to choosing whether LASIK eye surgery is the best restorative procedure one has to undergo.\n2. It is not a perfect procedure\nLASIK eye surgical treatment might remedy your vision however it does not always imply that it can provide you a ideal vision. Even if analytical reports reveal that 70% of the clients may have 20/20 vision, this does not necessarily indicate they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the perfect eye surgical treatment the method the majority of people see it\nOn the other hand, the evaluation of the structural part of the eye may be made in several methods. It needs to be well remembered that a patient with an eye problem might have other issues. Frequently other physical conditions are primary and affect the eye as a effect. The look of the eye can notify the client and the physician to problems in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible equivalent, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://conf-minor.sabanciuniv.edu/en/events","date":"2023-03-23T11:41:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945144.17/warc/CC-MAIN-20230323100829-20230323130829-00339.warc.gz","language_score":0.9463288187980652,"token_count":172,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__235670367","lang":"en","text":"Professor Mete Atature obtained his PhD in 2002 from Boston University Quantum Imaging Laboratory under the supervision of Profs A. Sergienko, B. Saleh and M. Teich working on multiparameter entanglement and quantum interference with entangled photons. He then joined the group of Prof A. Imamoglu at ETH Zurich as a postdoctoral fellow. In 2006 He received his Habilitation from ETH Zurich on Solid-state Quantum Optics. He moved to the University of Cambridge in 2007 as an assistant professor founding the Quantum Optical Materials and Systems research group, and he became a full Professor in 2015. His current research efforts include optical control of spin-photon interfaces in solids, development of nanoscale quantum sensors and investigations of novel quantum materials and devices. He is a Fellow of the Institute of Physics and the Turkish Science Academy.","domain":"optical_engineering"}
{"url":"https://www.computerprintersprice.com/vb-m42-ptz-network-camera-1-3m-electronic-computer/","date":"2023-03-26T03:30:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945381.91/warc/CC-MAIN-20230326013652-20230326043652-00029.warc.gz","language_score":0.9250067472457886,"token_count":200,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__170156250","lang":"en","text":"Deal: $2168.80 (SAVE Now!)\nas of 03/26/2023 (Details)\nCanon's VB-M42 PTZ (Pan/Tilt/Zoom) Network Camera brings a high standard of image quality and capability to meet the demanding needs of the security marketplace. With a native 1.3 Megapixel resolution (1280 x 960) and a 20x optical zoom lens which has a Pan/Tilt mechanism that is both fast and precise, you can capture detailed images of targets - even when in motion. Those images are sent through the sophisticated Canon DIGIC DV III Image Processor which results in crisp, clear video of your surveillance area. It also features exceptional low-light performance and advanced, customizable image quality controls and settings which make the VB-M42 very effective in some of the most challenging installation locations.This product meets the large package requirement per UPS/FedEx. The estimated shipping cost will include this fee.","domain":"optical_engineering"}
{"url":"https://www.lasicilia.it/take/ultima-ora/394036/seeing-machines-and-ams-partner-to-develop-optimized-vcsel-illumination-for-cabin-interior-monitoring-systems.html","date":"2021-10-23T14:13:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585696.21/warc/CC-MAIN-20211023130922-20211023160922-00033.warc.gz","language_score":0.90959233045578,"token_count":736,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__192853958","lang":"en","text":"CANBERRA, Australia, Feb. 18, 2021 /PRNewswire/ -- Seeing Machines, the advanced computer vision technology company that designs AI-powered operator monitoring systems to improve transport safety, announces results of an ongoing partnership with ams, a leading worldwide supplier of high-performance sensor solutions, to refine and optimize infra-red illumination solutions for interior monitoring.\nams is recognized globally as a lead supplier of Vertical Cavity Surface Emitting Laser devices (VCSELs), which is an active illumination technology that is present in today's smartphones. VCSEL devices are set to appear in many future automotive interiors where they are able to deliver highlycontrolled pulses of infra-red energy required for interior monitoring safety solutions. The devices have an inherent advantage over Light-Emitting Diodes (LEDs) due to their narrow-band emission spectrum that is also highly immune to temperature drift. This allows for more selective sunlight immunity, reducing overall illumination system power while improving the ability of cameras to operate with glasses and sunglasses.\nHowever, VCSELs remain an emerging technology for automotive applications where characterization for different use-cases is still ongoing. Working with Seeing Machines optics engineers, ams was able to fine-tune its next-generation VCSEL component (the TARA2000-AUT) for high-temperature automotive interior illumination. In particular, Seeing Machines provided critical design feedback on infrared pulse handling requirements, allowing the device to be ideally matched to Seeing Machines optimized camera system-optics.\nJohn Noble, SVP of Innovation at Seeing Machines commented: \"Seeing Machines has been evaluating VCSEL illumination technology for over three years in our labs, exploring candidate device efficacies for illumination of cabin interiors. Our detailed understanding of the technical pros and cons of VCSEL technology has progressed, particularly with regards to thermal efficiency characteristics, which is always a major challenge for vehicle interiors. We have worked with several suppliers and we recommend ams VCSELs to our customers\".\nBétina Bebey, Product Manager for High-Power Flood Illuminators at ams, added: \"The partnership with Seeing Machines demonstrates the increased value that VCSEL technology brings to optical driver monitoring systems compared to established illumination technologies. By driving this technology together, ams and Seeing Machines expect to gain valuable insight and bring our joint customers into the demanding automotive environment solutions to make driving safer and more comfortable.\"\nMedia enquiries: Seeing Machines – Sophie Nicoll, email@example.com, +61 419 149 683\nAbout Seeing Machines (LSE: SEE)\nSeeing Machines Ltd., is an industry leader in vision-based monitoring technology that enable machines to see, understand and assist people. Seeing Machines' technology portfolio of AI algorithms, embedded processing and optics, power products that need to deliver reliable real-time understanding of vehicle operators. The technology spans the critical measurement of where a driver is looking, through to classification of their cognitive state as it applies to accident risk. Reliable \"driver state\" measurement is the end-goal of Driver Monitoring Systems (DMS) technology. Seeing Machines develops DMS technology to drive safety for Automotive, Commercial Fleet, Off-road and Aviation. Founded in 2000 and headquartered in Australia, the Company has offices in Australia, USA, Europe and Asia, and supplies technology solutions and services to industry leaders in each market vertical. www.seeingmachines.com\nLogo - https://mma.prnewswire.com/media/1247670/Seeing_Machines_Logo_Logo.jpg","domain":"optical_engineering"}
{"url":"https://www.lolkims.com/support/svm340-synchronized-video-microscope/","date":"2021-07-25T00:06:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046151531.67/warc/CC-MAIN-20210724223025-20210725013025-00134.warc.gz","language_score":0.8408249020576477,"token_count":559,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__238372204","lang":"en","text":"SVM340 Synchronized Video Microscope\nSupport information for LabSmith’s SVM340 inverted fluorescence video microscope.\nuScope V2.020. Updated: 11/6/19.\nuScope software is a complete solution for hands-off control of the SVM340, video recording and real-time video image processing and metrology. The full functionality of this software, including image processing, is currently unlocked only when an SVM340 is detected.\nuScope versions 2.0+ include several new features, including autofocus, zoom capability, and real-time particle counting probes.\nThis driver allows you to control SVM340 functions through National Instruments’ LabView software. Download the file, then copy it into your LabView VI library directory.\nSoftware Developer’s Kit\nThe SVM software developer’s kit (C, C++) gives you access to most SVM control functionality for incorporation into custom setups. Please contact LabSmith support for access to the download, or if you have any further questions.\nDoes the SVM include software for image processing?\nHow do I image my micro-channels in color?\n- Ensure that you have a color camera module installed (check the label on the front of the camera module). The SVM340 comes standard with a B&W camera module. Additional camera modules can be purchased from LabSmith.\n- Verify that the color format is set to RGB by choosing Video>Color format>24 bit RGB.\n- Choose View>Video Options>Analog settings… and set the saturation to 100% of scale.\n- Ensure that there is enough signal light for the camera to work in color mode. At low light levels, the camera reverts to black and white to reduce noise. Turn up the illuminator intensity to full scale to check.\n- To verify that the camera is, in fact, in a color mode, shine a white light on the top to flood illuminate your sample and check whether the output is in color. You might also place a color picture from, say, a magazine on the sample stage and check for color output.\nWhich analog video capture device should I use with my SVM340 analog optics module?\nWe recommend the StarTech USB 2.0 Composite and S-Video Capture Cable (either SVID2USB2NS or SVID2USB2). Additional units can be purchased from LabSmith or from many electronics retailers. Note: the video capture device is only needed for analog optics modules (part numbers A-RS-170-C, A-RS-170-BW, or A-SVM-EPI-BL). Digital optics modules do not require a capture device.","domain":"optical_engineering"}
{"url":"http://yandi.com.ng/product/nikon-d5100/","date":"2017-08-24T02:46:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886126027.91/warc/CC-MAIN-20170824024147-20170824044147-00290.warc.gz","language_score":0.8950487971305847,"token_count":286,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__280797556","lang":"en","text":"The D5100 is a high-quality mid-class D-SLR that will respond to user demands for a variety of the latest camera technologies and functions, enabling them high-quality, high-definition shooting.\nSpecial effects mode that enables various creative effects in still images and movies.\n16.2 effective megapixels. Nikon DX-format CMOS sensor.\nImage processing engine “EXPEED 2” that achieves high image quality, high-speed image processing and multiple functions.\nWide sensitivity range of ISO 100 to 6400, expandable to Hi 2 (ISO 25600 equivalent) delivers sharp images with reduced blur caused by camera shake even in dark lighting situations and sports scenes.\nFast and accurate 11-point AF system that captures even moving subjects.\nLive View shooting function that lets you focus on a desired point within the frame.\nScene Auto Selector that automatically selects the most appropriate scene mode according to the shooting scenes or subjects.\n16 options of Scene Modes enable you to select the most appropriate mode according to your shooting scenes or subjects.\nHDR (High Dynamic Range) that allows you to shoot easily even in a difficult high-contrast scene.\nLightweight and compact, user-friendly body with superior operability.\nEasy-to-use in-camera image-editing functions such as NEW (RAW) processing, filter effects and edit movie.","domain":"optical_engineering"}
{"url":"https://koopereyewear.com/","date":"2023-06-02T13:04:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648635.78/warc/CC-MAIN-20230602104352-20230602134352-00622.warc.gz","language_score":0.9034457206726074,"token_count":221,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__21579353","lang":"en","text":"Blue Light Collection\nA Smart Solution to Fight Blue Light.\nIn the current digital era, we are constantly exposed to blue light emitted by computers, tablets and mobile phones, which can cause damage to the retina, irritation to your eyes, and disrupt your sleep.\nOur +Blue Light® glasses block most of the strongest blue light wavelengths reducing stress in the eye’s ciliary muscle. Available with non-prescription, prescription, and reading lenses.\n✓ Fewer Headaches & Migraines\n✓ Improve Your Sleep\n✓ Reduce Eye Strain\nDesigned for the Digital Generation.\nGood quality, fair price and excellent service: this is what shopping for eyewear should be about. With so many retailers and brands taking advantage of customers with hidden fees, we understand how buying glasses can turn into a significant investment. Kooper stands out from the pack by being fully transparent.\nBy creating a direct line to customers, Kooper offers flattering and stylish computer frames protecting your eyes from harmful blue light emitted by computer and mobile screens.","domain":"optical_engineering"}
{"url":"https://www.concord-optical.com/lenses-frames/sunglasses/","date":"2020-08-15T19:15:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439741154.98/warc/CC-MAIN-20200815184756-20200815214756-00225.warc.gz","language_score":0.9467141032218933,"token_count":189,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__26424492","lang":"en","text":"To protect your eyes and your vision, it is important to wear sunglasses when outside enjoying the sunshine. Ask your eye care professional to make sure your sunglasses provide 100% protection from UVA and UVB rays.\nSunglasses are available with or without a prescription and are often available with polarized lenses. Light reflected from surfaces such as a flat road or smooth water generally is horizontally polarized. Polarized lenses contain a special filter that blocks this type of intense reflected light, reducing glare for your eyes.\nPolarized lenses have been popular for years with boaters and fishermen who need to reduce reflected glare from the water surrounding them. Outdoor enthusiasts who have also benefited the most from polarized lenses include skiers, bikers, golfers and joggers, all who may enjoy a clearer view along with elimination of glare.\nAsk one of us at Concord Optical to make sure your sunglasses provide 100% protection from UVA and UVB rays.","domain":"optical_engineering"}
{"url":"https://blog.router-switch.com/2019/11/what-is-the-difference-of-cwdm-dwdm-and-ccwdm/","date":"2024-04-12T20:53:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816070.70/warc/CC-MAIN-20240412194614-20240412224614-00500.warc.gz","language_score":0.9326134324073792,"token_count":1066,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__133655596","lang":"en","text":"First, we should know what the WDM is.\nWDM (Wavelength Division Multiplexing) combines a series of optical signals with different information but different wavelengths into one bundle and transmits them along a single fiber. At the transmitting end, they are combined by a multiplexer (also known as a combiner, MulTIplexer) and coupled to the light, a technique for transmitting in the same fiber of a line; at the receiving end, a demultiplexer (also called a demultiplexer) separates optical signals of different wavelengths, and then is separated by an optical receiver. Further processing to restore the original signal. In the same fiber, two or more optical wavelength signals are simultaneously transmitted through different optical channels, which is called optical wavelength division multiplexing (WDM).\nIs it difficult to understand?\nThe Christmas is coming. Peter is ready to drive home. However, the traffic is busy and the road can’t widen more and more cars. (Peter is like a light signal. The main road is like the backbone fiber laid in optical communication. Because of the limited number, the single fiber transmission signal can no longer satisfy the growing communication needs).\nPeter thinks that everyone can go to the high-speed rail together, it is fast and convenient (the high-speed rail originating station is like the combined wave in the WDM wavelength division multiplexing technology, the optical signals are together and coupled into the same light transmission). After the high-speed rail ran for a certain distance, the supply was insufficient. After stopping to increase the supply, the vehicle was driven again. Soon after, it arrived at the destination, and all the passengers were diverted to each home. (The replenishment in the middle is equivalent to the signal being weakened after long-distance transmission of the optical signal; increasing the replenishment is equivalent to enhancing the optical signal after the weakening of the EDFA; the terminal of the high-speed rail is equivalent to the partial wave in the WDM wavelength division multiplexing technique. Separate various optical signals)\nWhat are the CWDM and DWDM?\nCWDM (Coarse Wavelength Division Multiplexer) is a sparse wavelength division multiplexer, also called a coarse wavelength division multiplexer. DWDM (Dense Wavelength Division Multiplexer) is a Dense Wavelength Division Multiplexer.\nTable 1. CWDM vs. DWDM\n|1270 – 1610nm O, E, S+C+L\n|1525 – 1565nm (C)\n1570 – 1610nm (L)\n|40 – 160\n|Metropolitan area network Access layer,\n|Long-distance and large-capacity trunk networks,\nLarge-capacity metropolitan area network core nodes,\nMetropolitan area networks,\nCWDM and DWDM have a big difference in the channel spacing between the two. Channel spacing refers to the difference between the nominal carrier frequencies of two adjacent channels and can be used to prevent inter-channel interference. The wavelength spacing between CWDM channels is 20 nm, while the channel spacing of DWDM is 1.6/0.8/0.4 nm (200 GHz/100 GHz/50 GHz), which is much smaller than CWDM. The difference in channel spacing is also the difference in bandwidth and capacity that can be carried by CWDM and DWDM. The DWDM module further increases system bandwidth and capacity by using more closely spaced wavelengths to carry more signals on the same fiber.\nHow to choose CWDM, DWDM, CCWDM?\nThe biggest advantage of CWDM systems is the low cost, and the device cost is mainly reflected in filters and lasers. The wide wavelength spacing of 20 nm also gives CWDM the advantage of low specification of the laser and simplified structure of the optical multiplexer/demultiplexer. The structure is simplified, the yield is improved, and the cost is lowered. The cost increase of DWDM is mainly due to the high cost of laser diodes and the cooling laser technology used to maintain wavelength stability.\nWhat is the CCWDM?\nCCWDM is a mini-wavelength division multiplexer and is a mini version of CWDM. A wavelength division multiplexing technology based on TFF (Thin Film Filter), which works in the same way as CWDM. The difference is that CCWDM uses free space technology, and its package size is greatly reduced compared with CWDM modules, and insertion loss. Lower and more consistent. It can replace CWDM products in telecommunications, enterprise networks, PON networks, TV and other fields.\nWe should choose the right WDM according to our transmission needs.","domain":"optical_engineering"}
{"url":"https://www.faushun.com/featured_items/156","date":"2024-04-24T00:36:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818835.29/warc/CC-MAIN-20240423223805-20240424013805-00005.warc.gz","language_score":0.9318558573722839,"token_count":217,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__65376581","lang":"en","text":"Household distributed photovoltaic power station\nHi-MO 4 LR4-72HBD 420M\nHousehold distributed photovoltaic project\nFirst and foremost, the project uses high-quality solar panels that can efficiently convert sunlight into electricity. The photovoltaic cells used in the panels are made of materials that are highly efficient in absorbing sunlight and are designed to work in various weather conditions. The technicians placed these panels on the rooftop of the sunshade in such a way that they can efficiently capture as much sunlight as possible.\nAnother technical highlight of the project is that it uses a special inverter system that can convert the electricity generated by the panels into the correct voltage and frequency for use in the grid. This conversion is essential since the electricity generated by the panels is DC, while the grid requires AC. The inverter is made with advanced technology to ensure that the conversion is smooth and efficient, thereby reducing energy losses.","domain":"optical_engineering"}
{"url":"https://www.ndigital.com/msci/products/","date":"2020-01-24T14:40:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250620381.59/warc/CC-MAIN-20200124130719-20200124155719-00451.warc.gz","language_score":0.8575674295425415,"token_count":395,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__165326637","lang":"en","text":"Get best-in-class accuracy over a large measurement volume with high-speed optical tracking systems that deliver fast, repeatable results for the most complex measurement applications.\nImprove your shop-floor metrology results with this portable optical tracker that provides the highest accuracy and largest measurement volume of any Optical Coordinate Measuring system in its class.\nPerform non-contact 3D laser scanning of complex surfaces in 6DOF to create accurate 3D models for industrial inspection and reverse engineering.\n[bs_button size=\"lg\" type=\"info\" value=\"Get my Free Demo\" href=\"#demo\"]\nTrack and analyze kinetics and dynamic motion in real-time with this powerful research-grade motion capture system that features exceptional spatial and temporal accuracy.\nStreamline electrode registration of EEG, MEG, NIRS, PSG, and ECG tests conducted with OEM neurodiagnostic equipment with this accurate, easy-to-use handheld digitizing scanner.\nLeverage the accuracy and versatility of real-time 3D electromagnetic tracking to simultaneously track multiple sensors that capture the most subtle and precise of movements.\nIntroducing Electromagnetic Needle Tip Tracking for Your Training System\n[bs_button size=\"lg\" type=\"info\" value=\"Learn More\" href=\"#needle\"]\nExpand your measurement capabilities with system configurations and accessories that cover every dimension of tracking, scanning and dynamic motion capture.\nAdd high-speed, real-time dynamic motion measurement (DMM) capabilities to the PRO CMM optical tracker with unique targets that track the 3D motion or 6DOF position of objects.\nCreate a unified measurement volume for uninterrupted tracking, scanning and probing of large parts and assemblies by linking two or more PRO CMM optical trackers.\nCollect data quickly and accurately with orthopaedic research pins that allow for easy experiment setup and instant marker detection in Optotrak orthopaedic research applications.","domain":"optical_engineering"}
{"url":"http://lsgen.com/about.php","date":"2017-11-23T23:40:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934807044.45/warc/CC-MAIN-20171123233821-20171124013821-00755.warc.gz","language_score":0.9024949073791504,"token_count":198,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__175033393","lang":"en","text":"Founded in 2006, LightSpeed’s goal is to innovate how micro and nano scale worlds are visualized and understood, making those worlds more affordable and easier to access.\nOur leading-edge technology combines specially designed illumination and post-processing software to generate multiple virtual sub-pixels (up to thousands and more) for each physical pixel of a camera, opening a way to transform, for example, a camera with one million pixels into a \"super-camera\" with one billion effective pixels. LightSpeed innovation will transform optical detection.\nIn 2009, the company was awarded a prestigious grant from the National Human Genome Research Institute (NHGRI) for developing Deep-Submission Optical Detection for High-Density High-Throughput DNA Sequencing.\nWe have assembled a team of world-class scientists from leading universities around the world with key technical and product development expertise from relevant industries.\nLightSpeed does not currently have any openings but please check back often.","domain":"optical_engineering"}
{"url":"http://santastoys.net/smartphone-science-lab/","date":"2018-09-20T06:34:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156418.7/warc/CC-MAIN-20180920062055-20180920082055-00191.warc.gz","language_score":0.8452279567718506,"token_count":150,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__49116053","lang":"en","text":"Turn your smartphone or tablet into a portable science lab with Smartphone Science Lab. Conduct scientific experiments with this cool technological science kit. Clip a microscope to your phone in front of its camera, turn on the camera and reveal microscopic worlds right on your screen. Point, click and share your discoveries. Investigate touch screen technology, go on a GPS treasure hunt, see invisible light, and race satellites. 20 different experiment to conduct using your phone. Includes universal smartphone/tablet mount, microscope, 4 optical filters that can be used to explore light, filter adapter, specimen slide, carrying case and a 24-page science guide. A 3 button cell is included. Works with most smartphones and tablets. No downloading required.\nAges 8 and up","domain":"optical_engineering"}
{"url":"https://ae.messefrankfurt.com/dubai/en/press/press-releases/LME/LME20154.html","date":"2024-04-22T06:13:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00567.warc.gz","language_score":0.9316266775131226,"token_count":806,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__201198111","lang":"en","text":"Dubai, UAE: The LED fixtures currently lighting up Arsenal Football Club’s Emirates Stadium in the 2015-16 English Premier League will be one of many new technologies on show at the Middle East’s dedicated lighting design trade show next month in Dubai.\nAmerican manufacturer Musco Lighting, a world-leader in customised lighting solutions for sports and large-area venues, will launch its new LED floodlights and LED Sports Fixtures at Light Middle East 2015, which takes place from 6-8 October 2015 at the Dubai International Convention and Exhibition Centre.\nThe LED floodlights use the same technology as those installed in 2015 at Emirates Stadium in London, the home of one of English football’s most successful clubs, and will be showcased at Light Middle East’s Future Zone – a dedicated stage for the world’s leading trends, technologies and concepts shaping the future of the lighting industry.\nThe illumination systems will be of immense interest to Middle East buyers in a region that will host large-scale events such as the FIFA World Cup 2022 in Qatar and the Dubai Expo 2020, while large outdoor industrial sites can also benefit, according to Musco.\nBrett Paulsen, General Manager of Musco’s Middle East operations, said: “The growth in Middle East sports venues and large area lighting such as shipping terminals is going to have a big impact on our business.”\n“Musco’s focus on delivering light directly to the surface or area makes us different from most lighting companies. We offer the ability to light with LED the largest of venues to the highest of FIFA standards. There are only a couple of companies in the world that can achieve this,” added Paulsen.\nMusco’s stadium LED fixtures will be one of many innovations at Light Middle East’s Future Zone, which this year will feature more than 40 leading lighting brands, 60 per cent more than in 2014.\nAhmed Pauwels, CEO of Messe Frankfurt Middle East, organiser of Light Middle East, said: “The increasing emphasis on efficient and environmentally-friendly lighting systems has taken hold across the Middle East and this is driving demand for lighting solutions that use innovative technologies and design to meet low-energy goals.\n“Light Middle East’s Future Zone offers an exciting snapshot of the latest developments in global lighting design and technology, presenting a clear indication of the direction in which the industry is moving.”\nOther innovations at Light Middle East’s Future Zone include ‘Tsubaki Seamless Light Series’ by Japanese manufacturer Atex. The light series are pliable LED strips that can be bent vertically and horizontally, and designed for façade and other architectural features.\nHiroaki Nishimura, Vice President of Atex said: “Our LED lighting products are designed and built for both direct and indirect, exterior facade and linear lighting applications, backlighting, under shelf, and even highly flexible lighting for art, sculpture, chandeliers and architectural signage applications.”\nOther headline companies at Light Middle East’s Future Zone include the show’s Gold Sponsors Debbas, Huda Lighting, Speclight, and Platinum Sponsor Cinmar, which as regional distributors are co-exhibiting with 25 manufacturers from across Europe, including Lucent from the UK, German manufacturer Hess, Italian brand Reggiani, and French-based Dietal.\nNow in its 10th edition, Light Middle East is the region’s only dedicated trade fair for lighting design and technology, and will this year feature more than 350 exhibitors and 430 brands from 27 countries.\nOther returning features include the Light Middle East Conference on 7-8 October, highlighting key issues impacting the regional lighting industry, while the prestigious Light Middle East Awards will celebrate the region’s most outstanding lighting projects and designers.\nShow website: www.lightme.net","domain":"optical_engineering"}
{"url":"https://www.reedinstruments.com/category/tachometer","date":"2020-08-07T18:14:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439737206.16/warc/CC-MAIN-20200807172851-20200807202851-00556.warc.gz","language_score":0.8245208263397217,"token_count":181,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__67675744","lang":"en","text":"Model: R7050 | UPC: 800837000163\nNon-contact RPM and revolution count measurements with 5 digit backlit LCD display.\nModel: R7100 | UPC: 800837001436\nDual function tachometer features the ability to measure RPM with non-contact built-in laser and contact (m/min) measurements quickly and accurately.\nModel: R7150 | UPC: 800837000415\nQuick responding and accurate dual function tachometer with the ability to measure non-contact RPM with built-in laser and contact measurements in ft/min (m/min).\nModel: R7140 | UPC: 800837000668\nDual function tachometer features the ability to measure RPM with non-contact (visible light) and contact (ft/min / m/min) measurements quickly and accurately.","domain":"optical_engineering"}
{"url":"https://naturalnewsblogs.com/quick-guide-choosing-right-scope-needs/","date":"2023-06-06T10:02:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652494.25/warc/CC-MAIN-20230606082037-20230606112037-00493.warc.gz","language_score":0.9407311081886292,"token_count":675,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__244614607","lang":"en","text":"It all comes down to what kind of targets you are going to shoot and at what distance. In fact, there are few more things to take into consideration before choosing the scope for your rifle. Many people often believe in the myth that the scope costs more than half the price of the rifle itself, which is not true for modern scopes. In the past, creating a proper, calibrated scope took a lot of skill and craftsmanship, but modern machining tools have made lives easier. The highly accurate milling and machining tools can produce large quantities with consistent quality thus, bringing down the price.\nFirst thing to consider is the distance. The distance from which you will be shooting narrows down your scope selected by a few notches. Long range shooting requires high power scopes with 8x or higher magnification. But, as you increase the magnification, the field of view decreases and so does the light captured by the objective. To overcome that problem there are scopes with larger objectives. Simple, isn’t it? Indeed, it is simple but the chunk it takes out of your wallet won’t feel so simple. Larger the objective, higher the cost.\nA 4 x 32mm scope will do well for a nice short range shot. Increase the magnification to 8x or even 12x, and you will be looking at dark images. 12 x 40, or a 12 x 50 scope will do significantly better at light gathering.\nAnother important factor to consider is field of view. Higher magnification combined with a smaller objective will give you a very narrow field of view. You may find yourself looking at tiny insects crawling somewhere far off in the distance, but you’ll never know exactly where they are because the terrain all looks the same.\nSo obviously you need a balance between magnification and the scope objective to obtain optimal field of view and in turn aim better.\nLet ‘s say you found a cheap scope that has a nice big objective and offers high magnification. Later, you find out the optics are not that great. Bad optics can cause chromatic aberration, blurriness and internal reflections to appear at the eye piece. This can be quite a problem while on the shooting range. Usually, the best quality optics will have coatings on the lenses that prevent reflections and aberration. The glass used on these optics will be super clear and well ground. You may want absolutely flawless, but know that isn’t going to come cheap.\nIn addition to field of view, eye relief is also another point to take into consideration. Eye relief is the distance you can maintain between the eye piece and your eye. If the eye relief is too close, you may end up injuring your eye while you shoot. Also, shorter eye reliefs will have black ring appearing all over the field of view.\nIn order to choose the best scope it is important to know certain terms, technological advancements and rifle scope manufacturers which you can easily familiarize yourself with from sites like RifleScopeGuide (below).","domain":"optical_engineering"}
{"url":"https://www.lay3rs-retail.nl/nl/einscan-pro-hd.html","date":"2023-03-25T20:00:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945372.38/warc/CC-MAIN-20230325191930-20230325221930-00258.warc.gz","language_score":0.7536903619766235,"token_count":529,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__210997956","lang":"en","text":"Shining 3D EinScan Pro HD\n- Hoogwaardige service en support\n- Eenvoudige mogelijkheid voor leasen.\n- Gunstige verzendvoorwaarden en retourbeleid\n- Fysieke showrooms op diverse locaties in Nederland\n- 3-5 Werkdagen\nInherited multi-functional and modular design of EinScan Pro series handheld 3D scanner, EinScan Pro HD delivers unparalleled performance in capturing high resolution and accuracy by handheld scanning. Exceptional versatility and powerful optimizations come together for the ultimate high-efficiency and professional-grade 3D scanning experience. It is reliable assistant for designers and engineers who care about high quality 3D modeling.\nBy adopting a new structure light projection modular, the stripe pattern scanning which was traditionally used in Fixed Scan Mode is now utilized to Handheld HD Scan Mode.\nBy 0.2mm minimum point distance setting with optimized algorithm, it brings high resolution and accuracy in handheld scanning as good as under fixed scan.\nLess Limitations of Scan Objects\nWith new lighting projection hardware and software algorithm, EinScan Pro HD is capable to scan a wider range of objects of dark or black color and casting metal surface, enriching the capability for 3D scanning of materials.\nFast Scanning Speed and\nEinScan Pro HD has a dramatic breakthrough in scanning capability, processing up to 3,000,000 points per second under handheld scan mode, and less than 0.5s for every single frame in Fixed Scan Mode. USB 3.0 provides high speed data transmission.\nHigh Accuracy for High\nQuality 3D Modeling\nBy kinds of positioning methods, both scanner or\nobjects can be moved during scanning.\nIt delivers accuracy up to 0.04 mm\nin Fixed Scan Mode. Under handheld scanning mode by marker alignment, the volumetric accuracy is up to 0.045mm+0.3mm/m.\nModular Design for a Wide Range of Applications by Multi Scan Modes and Data Alignments\nModular designed Color Pack, Industrial Pack as optional add-ons to EinScan Pro HD extend your scanning experience for more applications. Multiple positioning methods,\nincluding feature alignment, marker alignment, turntable coded targets alignment, manual alignment and texture alignment (with Color Pack ) , greatly enhance the scanning efficiency without additional preparation.\nHelp ons en andere klanten door het schrijven van een review","domain":"optical_engineering"}
{"url":"https://www.ydjtest.com/a/microscope/Metallurgical_Microscope/485.html","date":"2023-12-06T07:07:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00487.warc.gz","language_score":0.8743242621421814,"token_count":224,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__303767002","lang":"en","text":"BJ600X portable metallographic microscope is a precision optical microscope used for metallographic analysis and failure analysis of various large workpieces on site. On-site large workpieces do not need to be cut and sampled, and are directly ground and polished on the workpiece to ensure the integrity of the workpiece. After sample preparation, a portable metallographic microscope can be used for tissue analysis directly on the workpiece. This machine is used in aviation manufacturing, machinery manufacturing, vehicle manufacturing, boiler and pressure vessel manufacturing and inspection, petrochemical industry, railway shipbuilding, power plant, power station, equipment installation, large abrasive tools, safety inspection, quality supervision, physical and chemical testing and other industries. The machine has a wide range of applications and is easy to operate.\nThe machine model:BJ600X\noptical system:Finite distal chromatic difference correction optical system\nobserving tube:Monocular observation cylinder\neyepiece:Flat-field large-field eyepiece WF 10X / 20mm\nCamera interface:Standard 1X C interface","domain":"optical_engineering"}
{"url":"https://prasanthihospital.com/department/lasersurgery/","date":"2023-10-02T11:40:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510994.61/warc/CC-MAIN-20231002100910-20231002130910-00222.warc.gz","language_score":0.8848115801811218,"token_count":142,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__312984303","lang":"en","text":"Why Laser Treatment?\n- No Stitches\n- 30 Min Procedure\nOur LEONARDO® DUAL 45 or 100 are the most versatile and universal medical lasers in the market today. They have wavelengths of 980 nm and 1470 nm, which can be used individually or together and can be continuously adjusted during treatment with a single movement on the intuitive touch screen.\nMinimally invasive laser therapy of venous insufficiency\nMinimally invasive laser therapy of BPH and tumors\nHysteroscopic Outpatient Laser Applications\nState-of-the-art diode laser technology","domain":"optical_engineering"}
{"url":"https://mmcl.unist.ac.kr/research/fhi/","date":"2024-03-02T04:26:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475727.3/warc/CC-MAIN-20240302020802-20240302050802-00414.warc.gz","language_score":0.9321029782295227,"token_count":303,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__164945836","lang":"en","text":"Matter wave Optics\nIn addition to the great impact on the progress of quantum mechanics at its early stage, Stern-Gerlachexperiment, the study on interaction of atoms with magnetic field, has lead to the invention of nuclear magnetic resonance and magnetic resonance imaging. As this classical example, the investigation of particle-field interaction has been beneficial to whole science area. Main topic of our group is experimental research and application of molecular interaction with various fields, such as nonresonant laser field and its combination with static electric field. The force imparted by the molecule-field interaction is exploited to spatially separate stereoisomers and their quantum states. Beside, in collaboration with Fritz Haber Institute in Berlin, grazing incidence atom optics is investigated.\nMolecule Optics: As a optical prism separates photons as their refractive indices, a molecule prism, which is made of nonresonant laser pulse, can separate molecules of different molecule refractive indices. As a proof-of-principle experiment, we separated benzene and NO molecules according to their polarizability to mass ratio, which is related to the molecule refractive index. Without laser both molecules are detected at the same position. However, with the molecule prism formed by the laser field, they were separated with a choromatographic resolution of 0.90. This can be beginning of a new separation method. In the future, the separation of different rotational states or streoisomers will be pursued.","domain":"optical_engineering"}
{"url":"https://factrecall.com/physics-optics.html","date":"2023-12-07T13:25:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100674.56/warc/CC-MAIN-20231207121942-20231207151942-00462.warc.gz","language_score":0.8069735765457153,"token_count":147,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__295267825","lang":"en","text":"A diffraction grating contains lots of equally spaced slits very close together hence splits and diffracts light into several beams travelling in different directions. You will need to know how to derive d sin(θ) = n λ using trigonometry.\nDownload PDF (2 pages)\nDownload Editable Goodnotes (2 pages)\nFrom a less optically dense material to a more optically dense material, waves refract towards the normal. From a more optically dense material to a less optically dense material, waves refract away from the normal. The higher a material's optical density, the higher refractive index.\nDownload PDF (1 page)\nDownload Editable Goodnotes (1 page)","domain":"optical_engineering"}
{"url":"http://www.q-stechnologies.com/en/h-pd-24.html","date":"2023-06-01T23:16:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648209.30/warc/CC-MAIN-20230601211701-20230602001701-00582.warc.gz","language_score":0.7531802654266357,"token_count":316,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__26683150","lang":"en","text":"1. Optical system: finite distance optical system.\n2. Magnification range: 100×~1000×\n3, eyepiece: 10 × large field of view, high eye point flat field eyepiece, field of view Φ18mm\n4. Objective lens: Long working distance flat field achromatic metallographic objective: 10x/40x/ 100x (spring/oil.\n5. Observation tube: Hinged double (叁) eyepiece group, 45° tilt, 50-75mm pitch adjustment, adjustable diopter ±5°.\n6. Objective lens converter: Internal positioning four-hole converter.\n7. Coarse and fine focusing device: coarse and micro coaxial focusing, coarse adjustment stroke 30mm, fine adjustment value 2μm, coarse adjustment with elastic adjustment, focusing with limit device.\n8. Stage: Double-layer mechanical moving stage with an area of 180 mm × 165 mm and a moving range of 30 mm × 30 mm\n9. Lifting mechanism: The lifting and lowering focusing mechanism of the loading and unloading platform.The user can quickly focus on the subject.Protect the objective lens to observe the sample.\n10, Cora lighting system: 3W-LED cold light source or 6V/20W halogen lamp (wide voltage input: 100V-240V), field diaphragm, center adjustable; collector mirror adjustable.\n11, color filter set: gray / blue / green / yellow / matte; diameter ￠ 32.","domain":"optical_engineering"}
{"url":"https://www.thedronegirl.com/2018/12/23/mavic-2-enterprise-dual/","date":"2024-04-23T18:18:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818732.46/warc/CC-MAIN-20240423162023-20240423192023-00875.warc.gz","language_score":0.8939617872238159,"token_count":879,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__54715147","lang":"en","text":"On the heels of the launch of the DJI Mavic 2, the Chinese dronemaker this week announced the Mavic 2 Enterprise Dual, an industrial-grade version of its Mavic 2 and Mavic 2 Enterprise drones, which launched earlier this year.\nThe main differentiator with the new Mavic 2 Enterprise Dual is a set of side-by-side visual and thermal cameras. The new functionality is intended to allows users to measure temperatures and store images and temperature data for industrial or time-sensitive use cases such as utility inspections to emergency response.\nThe Mavic 2 Enterprise Duo camera camera is intended to be used for drone operators who need to capture heat signatures invisible to the naked eye. It offers gimbal-stabilized video and, since it is integrated with DJI’s existing features, allows the user to operate under DJI’s existing flight modes like QuickTrack, which centers the camera on the selected area. A new feature called HeatTrack automatically tracks the hottest object in view. That could be useful in applications such as search and rescue, where the drone can hone in on a missing person.\nThe Mavic 2 Enterprise Dual, like most on the market, has a three-axis gimbal stabilized camera. That gimbal is unique, though, in that it houses a side-by-side 4K sensor for capturing visible light and a FLIR Lepton thermal microcamera for capturing thermal data. The Lepton is FLIR’s smallest thermal microcamera.\n- FLIR MSX® – FLIR’s patented MSX, or multispectral dynamic imaging, embosses high-fidelity, visible light details onto the thermal imagery in real time to enhance visual details, helping pilots identify and interpret critical data that may not be immediately visible to the naked eye.\n- Spot Meter – Displays the average temperature of an object, helping pilots monitor and measure critical or hazardous objects while maintaining a safe distance.\n- Area Measurement – Displays the average, lowest, and highest temperature, as well as the corresponding locations of each area, allowing inspectors to quickly assess objects and determine if an asset may be overheating.\n- Isotherm – Allows pilots to designate specific temperature ranges to be displayed using a custom color palette so objects within the range relay higher contrast and better visibility. This feature includes custom profiles to aid search and rescue pilots in identifying people and to help firefighters identify hot spots in fires, as well as a custom profile setting for added flexibility.\nThe sensors are intended to better aid pilots in flying at night or in complex daytime conditions like fog and smoke. Users can select from multiple intelligent display modes in the DJI Pilot flight control app to visualize data from the dual-sensor camera. Here’s a list of those modes:\nThe drone was developed in partnership with FLIR Systems, one of the world’s biggest thermal camera makers that has partnered with DJi on numerous occasions in the past. The first of those partnerships was the introduction of the XT camera in 2015. In March 2018, the two companies unveiled the Zenmuse XT2 thermal imaging camera which improved upon that Zenmuse XT camera, which was an Infrared camera designed to be integrated with DJI’s line of drones. The XT2, like the new Mavic 2 Enterprise Dual, includes not just the infrared camera, but a dual sensor to show a traditional 4K video feed in real-time as well. This is now FLIR’s third partnership with DJI.\nThe Mavic 2 Enterprise Dual will sell for $2,699, including the drone, a remote controller, a battery, a set of accessories and protector case.\nThe first iterations of Mavic 2 drones launched in August 2018 as the Mavic 2 Pro and the Mavic 2 Zoom drones. The Mavic 2 Pro has a three-axis gimbal with a Hasselblad camera and 1-inch CMOS sensor and F\\2.8 EQV 28mm lens, capable of capturing 4K video and 12MP images. The Mavic 2 Zoom utilizes a two-time optical zoom camera with a 12 MP 1/2.3” CMOS Sensor.","domain":"optical_engineering"}
{"url":"http://intercer.mobi/leica-dfc320-74/","date":"2018-12-11T10:08:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823614.22/warc/CC-MAIN-20181211083052-20181211104552-00497.warc.gz","language_score":0.8287914395332336,"token_count":770,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__241408136","lang":"en","text":"Free forum by Nabble. They are designed to address basic applications such as documentation of fixed immuno-stained specimens through to demanding real-time, high-speed triggered, multidimensional acquisitions. DMC Image resolution of up to For fluorescence applications, cameras should capture as many photons emitted from the fluorescent specimen as possible whilst introducing little additional noise to the data. The article traces the history of the fluorescent proteins. It captures highest-quality images for professional documentation and image analysis. Entry level digital cameras.\n|Date Added:||9 July 2007|\n|File Size:||16.40 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nPlease upgrade to a modern browser.\nMost microscopes leica dfc320 are operated with a camera. I downloaded MM just yesterday and am not at all familiar with at.\nLeica EC4 Color 3. Microscope cameras from Leica are particularly remarkable for leica dfc320 fast live images, short reaction times, high resolution and clear contrast.\nOptical microscopy – Tampere University of Technology\nIn reply to this leifa by Nico Stuurman. Why Fluorescence Cameras from Leica Microsystems? Live-cell imaging often requires a high acquisition speed to capture fast dynamic processes. I got to the last point on http: Hi Nico, Adapter does the trick!\nThey generate reliable, reproducible, quantifiable data that can be used for analyses and comparison. Select leica dfc320 DMC for easy and efficient routine documentation. Entry level digital cameras Digital cameras, perfect for easy image capture and image share with colleagues.\nThe characteristics of the camera often decide whether the acquired image will reveal what a…. The article traces the leicq of leica dfc320 fluorescent proteins. Leica dfc320 Color Microscope Camera. Free future leica dfc320 when you subscribe now! Best, Nico I got to the last point on http: Select the DFC G leica dfc320 easy and efficient routine fluorescence applications.\nThe origin of fluorescent proteins The discovery of fluorescent proteins revolutionized the world of dfc302 sciences in the last century and was the key breakthrough technology that permitted the discovery and study of numerous cellular processes.\nLEICA DFC320 DRIVERS FOR WINDOWS DOWNLOAD\nWe have the right leica dfc for every application leica dfc320 record exactly what you see through our high-performance instruments. Without fluorescence labeling, few cellular process can be visualized since most biological samples are almost transparent. Your Web browser is no longer supported. Save Time with a USB 3. What about using this camera in leica dfc320 windows 7 64 bits environment? Routine digital cameras for imaging and documentation.\nIn reply to this post by Nico Stuurman. Back Cerebro Sample Tracking System. Sophisticated Microscope Cameras We have the right camera for every application to record exactly what you see through our high-performance instruments.\nDigital 5 MP color microscope camera with active cooling system. Lisi — View this message in context: Integrated camera for stereo microscope with ethernet connection and 10 MP resolution. Product Area Microscope Cameras.\nFluorescence can be used to visualize specific subcellular structures in fixed cells, and reveal connections between dynamic processes in leica dfc320 cells and tissues. Consolidate legacy Lecia systems to a single system of record for IT 2. The article traces the history of the fluorescent proteins. To achieve publication-ready results, their color reproduction perfectly leica dfc320 all kinds of staining leica dfc320.","domain":"optical_engineering"}
{"url":"https://thezoomball.com/products/the-zoom-ball","date":"2020-07-07T09:42:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655891884.11/warc/CC-MAIN-20200707080206-20200707110206-00387.warc.gz","language_score":0.848584771156311,"token_count":153,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__114678562","lang":"en","text":"The Zoom Ball™\nWHERE CREATIVITY MEETS PHOTOGRAPHY\nZoom Ball is made for creators and photographers. Always be prepared to take the perfect shot. Get creative in 2020 and join over 20,000+ photographers worldwide.\nZOOM BALL IS FOR EVERYONE\nWorks perfect for both DSLR & Smartphone users. Carved from K9 crystal: A lens-grade, optically clear crystal used in optics and lenses giving you the sharpest possible image.\nTHE POWER OF ZOOM BALL\nZoom Ball will expand your creativity and take your photography game to the next level. Because of it`s spherical effect it shows you a 180 degree view of your surroundings creating a mind-blowing visual effect.","domain":"optical_engineering"}
{"url":"http://www.heshine-led.com/q/h/ndcxbd.html","date":"2023-05-29T16:47:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644867.89/warc/CC-MAIN-20230529141542-20230529171542-00207.warc.gz","language_score":0.8845265507698059,"token_count":577,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__232731386","lang":"en","text":"1. Three main factors affecting the lighting effect of the stadium\nThe main factors affecting the lighting effect of the stadium are: light uniformity, color temperature of LED stadium lights, and excellent color rendering index.\n1.1 The uniformity of light. The more uniform the light distribution, the better the illuminance and the more comfortable the visual experience. The closer the illuminance uniformity is to 1, the better; on the contrary, the smaller it is, the more visual fatigue. Illuminance uniformity = minimum illuminance value/average illuminance value, the minimum illuminance value is calculated according to the point-by-point calculation method. Formula: U0=Emin/Eav, U1=Emin/Emax, U2=1-((Emax-min)/Eav)\n1.2 The color temperature of LED stadium lights. Color temperature is a unit of measurement that indicates the color components contained in light. Color temperature is a unit of measurement that indicates the color components contained in light. Theoretically speaking, the black body temperature refers to the color of the absolute black body after being heated from absolute zero (-273°C). After the black body is heated, it gradually turns from black to red, turns yellow, turns white, and finally emits blue light. When heated to a certain temperature, the spectral component of the light emitted by the black body is called the color temperature at this temperature, and the unit of measurement is \"K\" (Kelvin). The warm white range is generally 3000-3200K, the normal white range is generally 6000-6500K, the natural white range is generally 3500K~4500K, and the cool white range is above 8000K. Sports lighting (such as table tennis court lighting, billiard lighting) requires natural white lighting. The color temperature is about 4000K, and the color temperature of football and basketball courts is between 5000K and 5700K. The color temperature of hishine stadium lights can meet all sports lighting needs.\n1.3 Excellent color rendering index. In order to achieve a good color TV broadcast effect, the lighting quality of the stadium is not only related to the illuminance, but also closely related to the color temperature and color rendering of the lighting source. Article 3.3.2 of my country's \"Civil Building Lighting Design Standard\" GBJ133-90 stipulates that the color rendering index Ra of general light sources for color TV broadcasting should not be less than 65. According to the requirements of CIE NO.83 and FIFA, the light source The correlated color temperature Tc is greater than 5000K and the light source color rendering index Ra is greater than or equal to 80 to achieve the best on-site lighting effects and color TV broadcast effects.","domain":"optical_engineering"}
{"url":"https://www.lukx-eyewear.com/contactlenses","date":"2024-03-05T00:37:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476592.66/warc/CC-MAIN-20240304232829-20240305022829-00816.warc.gz","language_score":0.9281538128852844,"token_count":204,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__91822404","lang":"en","text":"LUKX - your address for the best contact lenses\nWearing contact lenses requires discipline, firstly to maintain them well and secondly to have them checked and replaced regularly, preferably every six months, professionally. LUKX in Haarlem specializes in all types of contact lenses, including multifocal lenses, contact lenses for children, and ortho-k lenses. LUKX is independent and sells the brands that best suit your eyes.\nIf standard lenses do not deliver the desired result, we also offer you the opportunity to try custom lenses. These contact lenses are fitted with a corneal topographer, which measures the eye on thousands of points. This specialist device enables us to order perfectly fitting contact lenses for you, with the highest level of comfort.\nWe advise you to have your eyes checked at least annually in combination with the contact lenses. Never use water for inserting and rinsing your contact lenses. Do you regularly suffer from dry, irritated eyes? Come and visit the store for advice.","domain":"optical_engineering"}
{"url":"https://amzainglifestyle.com/2024/02/02/fiber-color-code-navigating-the-magic-of-fiber-optics/","date":"2024-02-21T08:20:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00833.warc.gz","language_score":0.8736613392829895,"token_count":933,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__119370058","lang":"en","text":"In the vast expanse of fiber optics, where data whizzes through at the speed of light, an unassuming yet pivotal system takes center stage – the Fiber Color Code. This standardized marvel is the linchpin in the realm of fiber optics, orchestrating the identification and differentiation of various fiber optic cables and their unique characteristics. Join us on this journey as we demystify the Fiber Color Code, exploring its definition and delving into the profound significance it holds in the dynamic world of fiber optics. Let’s uncover how this standardized color language streamlines the installation and maintenance processes, ensuring seamless and efficient communication.\nUnraveling the Tapestry\nIn this section, we embark on a journey through the intricacies of the color-coded system governing fiber optic cables. Each color becomes a storyteller, weaving a narrative of the fiber’s mode, wavelength, and type. Understanding this coded language becomes imperative for anyone navigating the intricate web of fiber optic networks, offering valuable insights into the performance and capabilities of these cutting-edge communication channels.\nThe Kaleidoscope of Fiber\nVenture into the diverse landscape of fiber optics as we shed light on the various color codes at play. This segment spotlights the disparities between single-mode and multimode fiber color codes, where each type of fiber boasts its own distinct color palette. Whether for long-distance transmission or shorter distances, the unique color coding ensures effortless identification and differentiation, simplifying the setup and maintenance of fiber optic networks.\nHarmonizing on a Global Scale\nIn our globalized world, standards are the glue that binds seamless communication and compatibility. This section provides an overview of international standards for Fiber Color Coding, such as TIA-598-C and IEC 60793-2-10. Adhering to these standards becomes paramount for consistency and uniformity in fiber optic networks worldwide, ensuring technicians worldwide can swiftly identify and work with fiber optic cables.\nDeciphering the Symphony\nColors in fiber optic cables speak their own language. Join us in this segment as we guide you through the interpretation of primary and secondary colors. Each hue in the coding system reveals crucial information about the fiber, from core and cladding size to its specific application. Grasping the significance of each color becomes crucial for accurate fiber identification, guaranteeing proper installation and maintenance.\nPrecision in Every Connection\nIn the realm of high-speed data transmission, precision reigns supreme. This section underscores how Fiber Color Coding simplifies identification during installation and maintenance processes. The color code acts as a beacon, allowing technicians to swiftly identify the type and characteristics of each fiber optic cable, ensuring smooth and error-free installations and aiding in efficient troubleshooting.\nConnectors serve as the gateways to fiber optic networks. Join us in this segment for a clear explanation of color coding in connector types like LC, SC, ST, and more. The use of color-coded connectors ensures quick and accurate fiber connections, minimizing the risk of errors during network setup and guaranteeing efficient data transmission.\nNavigating the Labyrinth\nEven minor errors can lead to major issues in fiber optics. This segment brings attention to common mistakes and misconceptions related to Fiber Color Code interpretation. By addressing potential misunderstandings, we equip technicians with strategies to avoid these pitfalls, ensuring that fiber optic networks operate at their full potential without avoidable issues.\nThe world of fiber optics holds endless possibilities for the future. Join us in this segment as we delve into the latest trends and advancements in Fiber Color Code technology. Ongoing research and development promise further enhancements, leading to more precise and efficient fiber identification. Explore potential innovations that could revolutionize network installations and maintenance, propelling fiber identification to new heights.\nMastering the Craft\nProficiency is the golden key to success in the world of fiber optics. This segment underscores the significance of trained technicians in handling and interpreting Fiber Color Coding. Through proper training and certification, technicians gain the confidence to navigate fiber optic cables, accurately interpreting the color code and identifying different fibers. Certification serves as a beacon of expertise, assuring network operators that their networks are in capable hands.\nIn this concluding section, we recap the paramount role of the Fiber Color Code in the efficiency and reliability of fiber optic networks. Adhering to standardized color coding ensures consistent and error-free installations, reduces troubleshooting time, and elevates the overall performance of fiber optic networks. We urge all professionals and technicians to embrace and adhere to standardized color coding as the cornerstone for efficient installations and maintenance in the ever-evolving world of fiber optics.","domain":"optical_engineering"}
{"url":"http://www.platinumperformanceparts.com/catalog/product/view/id/306","date":"2017-11-18T06:46:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934804666.54/warc/CC-MAIN-20171118055757-20171118075757-00449.warc.gz","language_score":0.851804792881012,"token_count":165,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__207367296","lang":"en","text":"64 x 3 watt LEDs\n5° Hyperspot & 45° Driving Beam Pattern\nLight Output = 14720 Lumens\n50,000 Hours Lifespan\nCurrent Draw = 12.75 Amps\nOperating Range from -40°F to 145°F\nUtilizing Specter Optics, all E2-Series bars feature 50% more LEDs than the Hybrid Optics and cover even more area. Minimal light is wasted as they produce a smoother and more intense beam pattern. Constructed from a durable A360 aluminum and coated in a UV-safe polyester powder coating, each LED bar is virtually indestructible. The super powerful LEDs are protected by a clear, heavy-duty polycarbonate lens. Every light bar is sealed with molded silicone which makes them 100% waterproof.","domain":"optical_engineering"}
{"url":"https://www.nicselectronics.com/product/canon-powershot-sx540-hs-digital-camera-w-50x-optical-zoom-wi-fi-nfc-enabled-black-1-1067c001-2/","date":"2021-10-28T03:12:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588246.79/warc/CC-MAIN-20211028003812-20211028033812-00539.warc.gz","language_score":0.8738290667533875,"token_count":1058,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__16176683","lang":"en","text":"- Powerful 50x optical zoom with optical image stabilizer for outstanding optical performance\n- 20.3 Megapixel CMOS sensor with DIGIC 6 Image Processor helps deliver stunning image quality even in low light\n- Built-in Wi-Fi and NFC allows for easy sharing and transferring of images and videos. Canon High Power Flash HF-DC2\n- Capture spectacular 1080p Full HD video at 60p with stereo sound\n- Zoom framing assist now features a lock button option for quick and accurate subject recognition\n- Large 3.0-inch LCD (approx. 461,000 dots) allows easy viewing even from a wide angle\n- Hybrid auto lets you record up to four seconds of video before each image you capture, then automatically combines each clip and still into a quick video recap of the day\n- Story highlights enables the camera to automatically compile images and videos from a certain day or event into a mini highlight reel with music and effects\nPackage Dimensions: 132x179x830\nRelease Date: 21-03-2016\nDetails: Product Description\nCanon PowerShot SX540 Digital Camera w/ 50x Optical Zoom –\nWi-Fi & NFC Enabled (Black).\nFrom the Manufacturer\nPowerful Zoom. Epic Close-ups.\nUnleash the power of high zoom, high performance and Canon’s advanced technology. The PowerShot SX540 HS is a versatile and easy-to-use camera for virtually anyone who wants to capture their favorite subjects, from family get-togethers to amazing safaris, to school plays and the beautiful moments of life in between. Whether you’re capturing something up close or in the distance, you’ll be able to get the shot you want with its incredible 50x (24–1200mm) zoom power. Both still images and high-quality 1080p Full HD video are bound to impress even in low-light situations thanks to a new 20.3 Megapixel* High-Sensitivity CMOS sensor and the powerful DIGIC 6 Image Processor, which together create the Canon HS System. What’s more, Canon’s sophisticated wireless connectivity means you can share your favorite images and videos with whomever you like, as well as easily transfer them to other compatible devices. Improved Zoom Framing Assist makes capturing those faraway moments even easier with the new “Lock” feature, which helps ensure your subject is sharp and in the center of the frame. Working together with Face ID, the PowerShot SX540 HS’s Auto Zoom has also been improved for better framing of your family and friends. Near or far, the amazing zoom and high power of the PowerShot SX540 HS is on hand to help capture the pictures you want.\n* Image processing may cause a decrease in the number of pixels.\nPowerful 50x Optical Zoom with Optical Image Stabilizer for outstanding optical performance\n50x Optical Zoom (24–1200mm)\nOnce you experience the reach and versatility of this camera’s astonishing 50x Optical Zoom, you’ll wonder how you ever did without it. From sporting events to travel highlights, wildlife to landscapes, the powerful zoom lets you capture the details that make your photography stand out. Not only will you have the ability to move in to the shot you want, but you’ll also be able to capture those shots with incredible Canon quality. The camera’s secure ergonomic grip makes steady handheld shooting easy and comfortable, while Intelligent IS analyzes the shooting situation and applies advanced stabilization technology to help keep images clear and virtually shake-free in a wide variety of conditions.\nIntelligent IS analyzes camera movement and applies a suitable shake correction method for the shooting situation. For stills, the system selects from Normal IS, Panning IS, Macro (Hybrid) IS and Tripod modes. When shooting video, the system selects from Dynamic IS, Powered IS, Macro (Hybrid) IS and Active Tripod IS modes. With Intelligent IS, you can concentrate on image capture, letting the camera make effective IS settings to help capture a steady image.\nStill Image Shooting\nCorrects for a wide range of camera movement when shooting stills.\nPanning motion is detected so that IS does not interfere with desired camera movement.\nMacro (Hybrid) IS\nCorrects for shift-type camera shake, which typically occurs in macro (close-up) shooting.\nWhen tripod use is detected, the Image Stabilizer is stopped because it is not needed.\nEffective for video shooting at wide-angle focal lengths, eliminating the unwanted shaking that typically occurs while walking.\nCompensates for hand movement when shooting video at the telephoto end of the zoom range, where camera shake is magnified.\nMacro (Hybrid) IS\nCorrects for motion blur that is likely to occur when shooting video while walking. Also compensates for the shift-type camera shake common in macro shooting.\nActive Tripod IS\nWhen shooting video while using a tripod, the Image Stabilizer is active to compensate for slight camera shake.\n20.3 Megapixel* CMOS sensor with DIGIC 6 Image Processor helps deliver stunning im","domain":"optical_engineering"}
{"url":"https://quickbookssupporthelp.com/4851-different-types-of-contact-lenses-37/","date":"2024-04-13T16:49:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816820.63/warc/CC-MAIN-20240413144933-20240413174933-00349.warc.gz","language_score":0.9519546031951904,"token_count":800,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__102376960","lang":"en","text":"There are a number of different types of contact lenses available. You can read on to learn more about the pros, cons and benefits of different types. It is important to understand how to insert contact lenses. Contact lenses are usually inserted using your middle or index finger. Place rigid lenses on the cornea while soft lenses on the sclera. Depending upon the type of lens, you can either slide it into place or keep your eye open. Should you have any inquiries regarding in which in addition to tips on how to utilize Colored contact lenses one day, it is possible to contact us on our site.\nSoft contact lenses can have disadvantages\nOne of the major advantages of soft contacts is that they don’t put your eye at risk and have a longer wear time. They can be more difficult to use and require more maintenance. Other disadvantages include a shorter shelf life and higher cost. Additionally, the lenses are more likely to become contaminated and are difficult to clean. There are also concerns about eye dryness and allergies when wearing soft contact lenses. Soft contact lenses are less sharp and can be more precise than hard ones.\nRigid gas permeable lenses\nRigid gas-permeable contact lenses (RGP), are a type hard lens. They are made of oxygen-permeable polymers. RGP lenses can be extremely difficult to wear. However, they are possible to be used stay with me prescription eyeglasses. If you’ve ever tried a hard lens, then you might be curious as to why they are so amazing. There are many advantages to this type lens.\nSoft silicone hydrogel lenses\nClinical effectiveness of soft silicone contact lenses has been demonstrated in Asian studies. One study at the Centre for Contact Lens Research (Waterloo, Ontario) found that silicone hydrogel contacts resulted in a decrease in refractive error and no increase in corneal blood flow. A similar study with low-Dk conventional Hydrogel lenses showed that the lens wearers experienced an increase in myopia.\nA scleral or ophthalmic lens covers the entire eye. It can be worn throughout the day and taken out at night. In order to decrease the risk of corneal scarring, scleral lenses are usually replaced each year. Scleral lenses can be worn all day. However, in certain cases patients may need to have them removed periodically to ensure maximum comfort and correct vision.\nRigid PMMA lens\nPMMA is a material that makes rigid PMMA contact lenses. These contact lenses are very stiff because of their material. They were uncomfortable to wear, and it took many weeks for new users to adjust to them. The lenses’ rigidity was difficult for some to adapt to. The new material has many benefits, making them an excellent choice for vision correction. Rigid PMMA contact lenses are one of these advances.\nContact lenses have a history that dates back to 19th century. Leonardo Da Vinci is said to have developed the idea for a contact lens in 1508. However, the first contact lens made of glass wasn’t developed until the 1920s by a German doctor at the University of Kiel. It was not a good choice for daily wearers, because they couldn’t close their eyes, and humans tend to blink.\nToric lenses are the best option for people with astigmatism. They are easy to clean and do not cause fogging. Toric lenses can be worn to watch sports or if you prefer to wear them without glasses. Contact lenses can be used to correct astigmatism and help you live without glasses. You should consult your eye doctor before you purchase the right toric lenses. When you’ve got any questions relating to where and how you can use Disposable colored contacts, you could contact us at the webpage.","domain":"optical_engineering"}
{"url":"https://zephyr3d.fuzing.com/","date":"2018-04-24T06:48:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125946565.64/warc/CC-MAIN-20180424061343-20180424081343-00276.warc.gz","language_score":0.9535216689109802,"token_count":212,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__199452376","lang":"en","text":"Zephyr Paris was officially started in October 2001. Our first and main project is to develop and promote a series of optical glass products that withhold 3D laser engravings of images. The images can be part of theme series we propose and/or can be customized by us for the clients needs and according to their wishes.\nZephyr offers several hundreds of designs and owns one of the largest databases for 3D engraving cubes. We have developed special design fitting different markets of the world. Zephyrs offers a unique range of 3 dimension optical engraving on glass and crystal. Our large thematic collection, praised throughout the world for their originality transparency and elegance, will enhance any interior.\nZephyr Paris has developed a new technology of engraving called Laser Micropoint technology .. The quality of engraving is at least three times higher than the ones you can find in the market. The Micropoint technology has pushed the company into an unrivalled position in term of laser crystal art creation in the world.","domain":"optical_engineering"}
{"url":"https://ecejyredagij.ml/textbook/chemical-reaction-in-the-interferometer-u-gauge.php","date":"2019-11-21T21:29:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670987.78/warc/CC-MAIN-20191121204227-20191121232227-00357.warc.gz","language_score":0.8865169286727905,"token_count":3435,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__201711763","lang":"en","text":"On the contrary, fluorophores are vulnerable to photobleaching at relatively low fluence To demonstrate this, we performed repeated serial imaging of reflectance and fluorescence on a fluorescent microsphere. By contrast, fluorescence decreased exponentially with a fluence half-life of 3.\nWe further questioned whether reflectophores are practically applicable in scattering biological media. We compared reflectance with fluorescence in a scattering polymer matrix encapsulating fluorescent reflectophores Fig. The SNR was obtained from the average intensity divided by the standard deviation of background noise. In agreement with our previous characterization Fig.\nNotably, reflectophores showed higher SNRs, conceivably because of the concentrated signal at the centroid Fig. To further evaluate the applicability in biological tissues, we mounted reflectophores beneath a cortical brain slice of a Thy1-YFP mouse and performed a SpeRe measurement Fig. The results collectively indicated that reflectophores can be adapted in turbid biological media. Reflectophore in turbid media. Dashed lines indicate the best-fit to the exponential decay R 2 : 0. The fibrous structures in the reflectance image are myelinated axons because of their unique multilayered cytoarchitecture.\nTo compensate the depth-dependent signal attenuation, intensity was normalized for each slice.\nDue to their micron-scale size, conventional intracellular delivery methods, such as passive diffusion or electrophoresis, cannot be used with reflectophores. Alternatively, it has been reported that both phagocytic and non-phagocytic cells can actively uptake microparticles via endocytosis 33 , 34 , We validated that serial phase-contrast images provide a robust quantification of intracellular uptake by showing that the cell-impermeant fluorescent streptavidin does not stain intracellular biotinylated reflectophores Supplementary Fig.\nTo our surprise, we observed that the surface coating significantly affected uptake efficiency: amine-functionalized reflectophores showed an over two-fold higher uptake compared to bare and biotinylated reflectophores Fig. Intracellular reflectophores. Arrowheads indicate the reflectophore under endocytosis.\nThe error bar represents standard error of the mean. Hela cells loaded with reflectophores were subsequently cultured over several days to form a tumor spheroid. The solid sinusoidal curves are the best-fit simulation spectra R 2 : 0. The dotted lines indicate the means. Grayscale image indicates MitoTracker fluorescence and pseudo-colored traces represent time-series tracking of individual reflectophores over time.\nAs expected, cell division introduced the segregation of intracellular reflectophores into two daughter cells. Although rare, we also observed that reflectophores escaped the cell i. We did not observe any signs of cellular damage such as membrane permeabilization, blebbing, or apoptosis by intracellular reflectophore in three cell lines Supplementary Fig. Collectively, these results illustrate that reflectophores can be rationally designed to be internalized into cells, and intracellular reflectophores do not significantly interfere with cellular physiology.\nPicometre level displacement interferometry\nNext, we questioned whether differently sized reflectophores could serve as multiplexed labeling for tracing individual cells, as also proposed in intracellular microlasers To address this, we prepared multicellular spheroids using reflectophore-loaded cells Fig. Last, we tested the potential of optical barcoding for tracking migrating cells Fig.\nWe observed no significant change in migration activity by intracellular reflectophores Supplementary Fig. We next tracked individual migrating cells in the process of forming capillary-like structures with reflectophore barcoding. We reasoned that the nanoscale precision realized may enable the sensing of macromolecules adhered to the reflectophores via specific biological interactions.\nMolecular adsorption forms an additional dielectric thin-film layer with a thickness corresponding to the size of the macromolecule, which can be detected by SpeRe Fig. In our numerical simulation, we estimated that the binding of streptavidin leads to a spectral redshift i. We used fluorescent streptavidin to independently confirm its binding to the reflectophore Fig. After binding, we observed a robust redshift of 0.\n- Interferometry on Prismatic Bodies.\n- Laser Instruments and Applications!\n- The European Union and Global Governance (Routledge/GARNET series)!\n- Self Built Interferometer Measures Nanometer Displacement.\nMicroenvironmental sensing. Note that fluorescence was localized specifically at the surface of the reflectophore. The arrows indicate the spectral peaks. Data are represented as mean open circle and the standard deviation shaded region was acquired from 30 repeated SpeRe measurements. The information encoded by reflectophores is the optical distance, thus, the change in refractive index, as well as size, can be detected at high precision. To demonstrate this alternative sensing principle, we prepared a liquid-crystal reflectophore via self-assembly of a nematic liquid crystal into a droplet in a polymer matrix Fig.\nThe sample was then sandwiched between conductive indium-tin-oxide glasses and connected to a function generator to control the external electric field during optical sensing. When there was no external electric field, liquid-crystal reflectophores exhibited radially ordered structures, which was apparent in bright-field and polarization microscopy Fig. In SpeRe measurements, we observed that the measured spectra shifted toward longer wavelengths at higher electric fields corresponding to the higher refractive index, consistent with the theoretical prediction Fig.\nWe reported on the reflectophore, a novel interferometric optical probe that encodes information by optical distance i. Furthermore, the variable refractive index of a liquid-crystal reflectophore enabled the sensing of local electric fields. Our theoretical and experimental studies demonstrated that reflectophores have several compelling advantages. First, reflectophores have orders-of-magnitude higher brightness compared to typical fluorophores because of the high reflective cross-sections of their spherical geometry. The bright signal localized at the centroid provides high SNR for reliable spectral detection even in scattering media Fig.\nThe spherical shape also ensures orientation-independent readouts for applications in three-dimensional tissues, which is in stark contrast to previously reported barcodes requiring a certain readout angle Second, reflectophores exhibit negligible photobleaching. This enables a practically unlimited number of readouts as well as long-term information storage.\nChanges in medium composition, which are often unavoidable in applications in living systems, only affect the magnitude of reflectivity but not its spectral shape, thereby providing robust readouts Supplementary Fig. Last, as shown in our studies using a fluorescent microsphere, reflectophores can be synergistically integrated with existing fluorophores to take advantage of both modalities.\nThe signals are easily separable in the spectral domain because of the Stokes shift in fluorophores and also in the spatial domain because of the center localization in reflectophores. This feature provides an additional degree-of-freedom in design, for example, to increase the multiplexing capacity for barcoding or to incorporate multiple sensors.\nReflectophores do, however, have shortcomings. Thus, reflectophores are not suitable for labeling individual proteins or subcellular organelles. In addition, the large size may interfere with cellular physiology when it is introduced into cells. Although we observed that intracellular reflectophores do not significantly interfere with viability, migration, and proliferation in multiple cell lines, interference to the biological process of interest should be verified for each experimental context.\nApplications in extracellular space in tissues or cell-free systems are relatively free from this issue. Next, for high-degree multiplexing, fabrication of various microspheres at nanoscale precision are required and is technically challenging. Ranges of nanotechnologies are available but may have low throughput and are costly 46 , As a potential solution, bulk polydisperse microspheres may be sorted based on our SpeRe-based readout, like the widely adapted fluorescent-assisted cell sorter.\nLast, our current readout system is rather slow as it involves volumetric scanning for locating the geometric center of a reflectophore. Since off-centered acquisitions are ignored, an advanced scanning algorithm to efficiently find the centers will dramatically accelerate acquisition speed. Alternatively, reflectophores could be physically aligned through optical or magnetic tweezers. Although our studies only exemplified reflectophores made with certain materials e.\nRecently, a plethora of hydrogels equipped with various functionalities were developed for bio-integration Notably, stimuli-responsive hydrogels can change their physical size in response to specific chemical or physical milieu such as pH, temperature, and electric field.\nReflectophores made with these stimuli-responsive materials could function as bio-integrable sensors. It may also be possible to fabricate multilayered reflectophores to incorporate multi-functional sensing capabilities. Moreover, chemical engineering on the surface offers an additional route for functionalization such as affinity-based molecular sensing, improved biocompatibility, and targeting of a specific cell type We envision that the adoption of advanced knowledge in material science and chemistry will vastly expand the utilities of reflectophores.\nThe refractive index spectra for water and silica was provided by the toolbox and that of polystyrene was adopted from a previous study SpeRe measurements were performed on a customized galvanometer-based laser scanning microscope H, Cambridge Technology; Supplementary Fig. For the input source, a supercontinuum white light laser EXB-6, NKT photonics was attenuated using a neutral density filter 3.\n- An Introduction to Gage Blocks | GR Metrology.\n- Leibniz (Routledge Philosophers)?\n- Cats Cradle.\n- Care planning in mental health : promoting recovery.\n- Geometric Phase Atom Optics and Interferometry.\n- Quick Guide.\n- Microsphere-based interferometric optical probe | Nature Communications.\n- Configuration Guide.\n- Composing for the Cinema;\n- New Green Home Solutions: Renewable Household Energy and Sustainable Living!\n- Tiger Rag!\nThe reflected light was spatially filtered by a confocal pinhole 0. Prairie software Bruker was used for controlling the scanner and triggering the spectrometer. The spectrum corresponding to the geometric center of the microsphere was acquired at the pixel with the maximum intensity Supplementary Fig. If the geometric center was not within the scanning volume, the dataset was excluded from the analysis.\nThe spectrum was subsequently normalized by the reference spectrum obtained with a protected silver mirror PF05—P01, Thorlabs at the sample stage. Fluorescent microspheres , Thermo Fisher Scientific immersed in 0. To gauge fluorescence levels, we compared the fluorescence obtained with the microsphere with that of a known dye, fluorescein isothiocyanate-dextran , Sigma , at the same optical gain and excitation intensity.\nA standard calibration kit —01C, Ted Pella was used for scale calibration. To compare the intensity and SNR attenuation of SpeRe and fluorescent, a depth-dependent image was acquired. The SNR was obtained by the mean intensity divided by the standard deviation of the background signal. All animal experiments were performed in compliance with institutional guidelines and approved by the subcommittee for research animal care at Sungkyunkwan University. For the biotin-coated microspheres, we afterwards confirmed their intracellular localization by taking fluorescence images after adding 0.\nFor the migration assay, 3. Negative staining of fluorescent streptavidin 0. The microspheres were placed within the wells of the micromesh. We typically chose the microspheres adhered near the edge of the micromesh because of their positional stability even during solvent exchange.\nAfter the baseline spectral acquisition at a spectral resolution of 0. We used GraphPad Prism for statistical analyses. Unpaired t -tests two-sided were used for group comparisons by assuming normality, based on previous literature. Neither randomization nor blinding was applied. For regression analysis, we present the correlation coefficient R 2 along with the sample size. All relevant data are available from the corresponding author upon request.\nA reporting summary for this Article is available as a Supplementary Information file. The source data underlying Figs. Chalfie, M. Green fluorescent protein as a marker for gene expression. Science , — Specht, E. A critical and comparative review of fluorescent tools for live-cell imaging. Tsien, R. The green fluorescent protein. Lichtman, J. Fluorescence microscopy. Methods 2 , — Garland, M.\nA bright future for precision medicine: advances in fluorescent chemical probe design and their clinical application. Cell Chem. Germond, A. Design and development of genetically encoded fluorescent sensors to monitor intracellular chemical and physical parameters. Vendrell, M. Combinatorial strategies in fluorescent probe development. Resch-Genger, U. Quantum dots versus organic dyes as fluorescent labels. Methods 5 , — Jaiswal, J. Long-term multiple color imaging of live cells using quantum dot bioconjugates. Zimmermann, T.\nSpectral imaging and linear unmixing in light microscopy. Lu, Y. Tunable lifetime multiplexing using luminescent nanocrystals. Photonics 8 , 32—36 Submicrometer metallic barcodes. Lee, H. Colour-barcoded magnetic microparticles for multiplexed bioassays. Lee, J. Universal process-inert encoding architecture for polymer microparticles. Braeckmans, K. Encoding microcarriers by spatial selective photobleaching. Pregibon, D.\nMultifunctional encoded particles for high-throughput biomolecule analysis. Han, M. Quantum-dot-tagged microbeads for multiplexed optical coding of biomolecules. Lin, C. Submicrometre geometrically encoded fluorescent barcodes self-assembled from DNA. McGloin, D. Biophotonics: cellular lasers. Photonics 9 , — Humar, M. Intracellular microlasers. Heylman, K. Optical microresonators for sensing and transduction: a materials perspective.\nSchubert, M. Lasing within live cells containing intracellular optical microresonators for barcode-type cell tagging and tracking.\nNano Lett. Lasing in live mitotic and non- phagocytic cells by efficient delivery of microresonators. Silicon chips detect intracellular pressure changes in living cells. Shambat, G. There the two beams overlap and constructive and destructive interference occurs depending on the relative phase shift between the two plane waves.\nFigure 1: Schematic of the Michelson interferometer. Each beam experiences a phase shift of when they are reflected at the mirror surfaces M1 and M2 and an additional phase shift due to the propagation through the glass of the beam splitter and the partial reflection at the semi-transparent surface. The total phase shift between the two beams therefore is given by:. Here is the wave number and the wave length of the light.\nYou will observe constructive interference when the with. The number of changes is given by:.\nFabry and Perot's interferometer | Opinion | Chemistry World\nTherefore this instruments allows you to observe distance changes of the order of the wavelength of light. If light travels in a medium its speed is smaller than in vacuum. The ratio between the speed of light in vacuum and the speed of light in a medium is give by the index of refraction.\nAs a consequence if light travels a distance in a medium it experiences a phase shift where and , the wavelength of light in a medium is shorter that in vacuum. This property is later used to determine the index of refraction of air. The main parts are shown in Fig. If you have to tighten set screws use only two fingers and do not apply a lot of force or you might crack a lens or a mirror. The various optical parts are labeled. If you are unsure ask your instructor or learning assistant for help. Figure 3: Setup of the lens and mirror supports. The index of refraction of air is very close to one.\nIt is a good approximation to assume that the deviation from one is proportional to the density of air:. Assuming that the temperature is constant and using and one obtains:.","domain":"optical_engineering"}
{"url":"http://scopesfestival.org/index-46.html","date":"2023-10-04T19:56:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511406.34/warc/CC-MAIN-20231004184208-20231004214208-00467.warc.gz","language_score":0.8163824677467346,"token_count":3549,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__274119826","lang":"en","text":"March Rifle Scopes can be ordered with extra three inch or 75mm (3 inch) long sunshades. These all-metal shades reduce stray light as well as decreasing barrel flare and ghosting off the target.\nDB485-0for 24mm objective models\n2-DB179-0for 42mm objective models\n2-DB115-0/-Sfor 52mm objective models\n(“-S” is for Silver models)\n2-DB256-0/-Sfor 56mm objective models\n(“-S” is for Silver models)\nAnti reflective device (ARD)\nDB391-A24mm objective models\nDB391-B42mm objective models\nDB391-C52mm objective models\nDB391-D56mm objective models\nMD Disk help to reduce the amount of light coming into a scope by up to 50%, depending on the conditions. This light reduction increases the scopes depth of field and, prehaps more impotantly for competition shooters, reduces the amount of seen mirage. Using a MD Disk at 60 or 80 power gives you a competitive advantage when the conditions turn bad and lets you see the target better than your competitor.\nWeight : 0.25 oz (7.1 g)\nDB269-0For 56mm objective models\nWith MD disk attached,the inner diameter will be 43mm\nDB062-0For 52mm objective models\nWith MD disk attached,the inner diameter will be 35mm\nDB740-0For 42mm objective models\nWith MD disk attached,the inner diameter will be 30 mm\nThe March Flip Caps can be locked in a fully open position. Having the caps lay flat against the scope body prevents breakage and gives the shooter a better view of the target area from over the scope.\nFC-46for Wide Angle Eyepiece\nFC-33for 24mm objective models\nFC-51for 42mm objective models\nFC-60for 52mm objective models\nFC-64for 56mm objective models\nMarch offers optional Leather Caps that not only protect your valuable new scope but also provides a traditional look to a modern piece of optical art.\nLC-24for 24mm objective models :\nD10V24, D10V24M,D10V24T, D10V24TM, D10V24TI,D8V24FML,D8V24FIML\n- for 42mm objective models :\nD25V42, D25V42M, D25V42T, D25V42TM, D25V42TI, D24V42FML, D24V42FIML,D24V42FMA,D24V42FIML\n- for 52mm objective models :\nD40F52, D50F52, D60F52, D32V52L, D32V52LM, D32V52T, D32V52TM, D32V52TI, D60V52L, D60V52LM, D60V52T,D60V52TM, D60V52TI\nThis does not fit the eyepiece of D28HV52WFIML, D28HV52WFML\n- for 56mm objective models :\nD50V56T, D50V56TM, D50V56TI, D60HV56TI, D60HV56T, D60HV56TM, D60HV56L, D60HV56LM, D80V56T, D80V56TM, D80V56TI, D40V56FML(G2), D40V56FIML(G2), D40V56FML10(G2), D40V56FIML10(G2),D40V56FMA4, D40V56FMA8(G2), D40V56FIMA4, D40V56FIMA8(G2), D60V56GFIML, D60V56GFIML10, D60V56GFIMA, D60V56GFML, D60V56GFML10, D60V56GFMA\nThis does not fit the eyepiece of D42HV56WFIML\nUltra Low Illumination Switch Module\nUltra low illumination is a very dark 4 level illumination module invisible to your naked eye. If you attach a night vision on the ocular side, even the darkest settings in the 6 level illumination are too bright. Therefore, we developed an ultra low illumination module to accommodate to the night vision on the ocular side.\nDark settings, level “1” or “2” in the 6 level illumination module will be adequate for usage of night vision attached on the objective bell as you will be seeing the image of the night vision through the scope. For a night vision attached on the objective bell, you do not need to use an ultra low illumination module.\n*All our illumination modules are interchangeable.\nSix level Illumination Switch\nThe Six Level Illumination Switch produces six levels of light intensity on the reticle. This feature is useful for precision shooting in low light or night conditions. Rotating the knurled dial doubles the intensity with each increasing level. The rubber switch turns illumination on or off while maintaining the user-selected intensity level. After one hour, illumination will automatically shut off to save battery life.\nMiddle Focus Wheel\nTo help with fine or rapid focus changes at different distances, March scopes can be upgraded using a 49mm diameter Middle Focus Wheel. It will assist making quick and fine adjustments easier with the focus knob.\n- for Fixed power 48×52, 40-60×52 EP Zoom,\nnon-illuminated models of 10x-60×52 (D60V52L & D60V52LM & D60V52T & D60V52TM)\n(inner diameter 31mm)\n- for non-illuminated models of\n1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10x-60×56, 4.5-28×52, 6-60×56\n(inner diameter 34mm)\n- for illuminated models of\n1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10-60×52, 10x-60×56, 4.5-28×52, 4-40×52, 6-60×56\n(inner diameter 36mm)\n- for 5-42×56 illuminated models (inner diameter 39mm)\nShooting at very close ranges often requires very fine adjustment of the focus dial. March has produced a Large Wheel to fit over the Middle Focus wheel to enhance the dial’s ability to focus clearly. A great addition to Air Rifle Field Target and other shooting disciplines requiring accuracy. Large wheel can’t be used alone as it is put on a middle wheel. There are 2 sizes available.\nPlease click HERE to see how to install a large wheel.\n2-DB343-0 (3.5inch / 8.89cm)\n2-DB402-0 (4.5inch / 11.4cm)\nMarch offers two blank dials for shooters to create their own Ballistic Drop Compensator (BDC). These blank BDCs replace the existing elevation knob on your March scope and let you create your own elevation adjustments to suit your load. Make any changes to your load and replace the tape on the dial quickly and easily. The blank dials can also be used for air rifle field events in conjunction with the Large Wheel for added accuracy at short ranges.\nPlease click HERE to see how to install a large dial.\nDB392-0 (the shorter dial)for 1x-4.5x, 1x-10x, 1.5-15x, 2.5x-25x, 1x-8x, 3x-24x, 5x-40x with tactical turrets\nDB393-0 (the taller dial)for 10x-60x, 5x-50x, 8x-80x with tactical turrets\nThis Windage Dial reverses the standard dial on the scope so that now with this turret left wind is on the left and right wind is on the right, allowing shooters to instinctively cope with quick wind changes. There are engraving on both sides. Right:1-9, Left:1-9\nDB209-HFor Tactical type of 10x-60x, 5x-50x, and 8x-80x\nDB046-BFor Normal type of D40F52, D50F52, D60F52, D36V52E, D32V52L, D32V52LM, D48F52, D60V52L, D60V52LM, D60HV56L, D60HV56LM\nThe Fast Lever helps move the zoom ring quickly and easily without the need to shift or head positions. Ideal for rapid fire disciplines on targets at multiple ranges. March fast lever is made of plastic which the engineers at March actually put a lot of thought into. As this is not made of metal, March fast lever will not damage your scope. Also it comes off easily when it is caught in branches but when used normally, it is firmly mounted and will not come off.\nUse the Smart Phone Adapter to take photos through your March Rifle Scope. The adapter can be adjusted to suit most current Smart Phones. This can be used for all March scopes. However you would need additional parts for 48×52, 40-60×52, 4-40×52, 6-60×56, 4.5-28×52 and 5-42×56.\nFor 4.5-28×52 & 5-42×56 WideAngle you need additional 2 parts\nand for 48×52, 40-60×52,4-40×52 & 6-60×56 Genesis you need additional 1 part.\nDo not use while shooting for your safety.\nPlease click HERE to see the installation instructions.\nDA367-0Smart Phone Adapter\nfor 48×52, 40-60×52,4-40×52 & 6-60×56 Genesis, 4.5-28×52 & 5-42×56 WideAngle\nDB684-0Adapter ring for 4.5-28×52 & 5-42×56 WideAngle\nDO NOT SHOOT with the Smart Phone Adapter installed on your March Rifle Scope.\nNo warranty for any damage to your Smart Phone if the Smart Phone Adapter is used while shooting.\nPrecision Scope Rings manufactured by March Scopes UK are optimized for sport shooting and hunting. They are compatible with any 1913 specification rail and it features a Scope Link interface situated on the cap that allow the mounting of multiple optical accessories.\n• Lightweight and durable scope rings\n• Scope Link interface for attaching optical accessories\n• Manufactured from 7075 aluminium\n• Finished with Type 3 Hard Coat anodizing\nPlease click HERE to see the dimension and weight of the rings.\nPlease click HERE to see the installation instructions for scope rings.\nPlease click HERE to see the installation instructions for dovetail scope rings.\n*Dovetail rings are universal. They fit both 3/8″ and the 11mm rails.\nPC30H26Picatinny – 30mm diameter ring / height:26mm (low)\nPC30H30Picatinny – 30mm diameter ring / height:30mm (med)\nPC30H34Picatinny – 30mm diameter ring / height:34mm (high)\nPC30H37Picatinny – 30mm diameter ring / height:37mm (extra high)\nPC34H30Picatinny – 34mm diameter ring / height:30mm (med)\nPC34H34Picatinny – 34mm diameter ring / height:34mm (high)\nPC34H37Picatinny – 34mm diameter ring / height:37mm (extra high)\nDT30H30Dovetail – 30mm diameter ring / height:30mm (med)\nDT30H34Dovetail – 30mm diameter ring / height:34mm (high)\nDT34H30Dovetail – 34mm diameter ring / height:30mm (med)\nDT34H34Dovetail – 34mm diameter ring / height:34mm (high)\nAC-PC3030mm accessory top (single top only)\nAC-PC3434mm accessory top (single top only)\nAC-PRAccessory picatinny rail\nMS0001SHORTY Scope Mount\n1-8×24, 1-10×24 “Shorty” custom designed scope mount with double diameter rings.\nFor D8SV24FIML, D10SV24FIML, D10SV24FIMLN\nSpotting Scope Accessories\nThe Eyepiece extension ring included in the kit extends the eyepiece so you can use it with your eye attached to the eyepiece. As it is covered with rubber, you can look into it like a binocular or a spotting scope. The difference with a spotting scope is that you can use the same rifle scope (same model, same reticle) as the shooter.\nScope is attachable with a mount ring corresponding to picatinny rail. Includes tripod screws attachable to tripod on the market. By zooming, you can achieve a wide view (at lower magnification) and also cofirm the point of impact (at higher magnfication). The reticle of the rifle scope will aid to correct the point of impact. Middle wheel will assist you in making a fine adjustment of the side focus.\nThe Spotting Scope Accessories kit includes the following ;\n• Tripod adapter with screws\n• Middle focus wheel 34mm(for non-illuminated models of 1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10x-60×56, 4.5-28×52, 6-60×56), 36mm(for illuminated models of 1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10x-60×56, 4.5-28×52, 4-40×52, 6-60×56), 39mm(for wide angle illuminated model of 5-42×56)\n• Allen wrench\n• Eyepiece extension ring\n• Conversion ring : This conversion ring will enable the eyepiece extension ring to attach to a wide angle(5-42×56 and 4.5-28×52) eyepiece of the new models.\nThis Eyepiece rubber can easily be attached to any eyepiece except for wide angle series 5-42×56 and 4.5-28×52.\nThese are replacement rubbers which are to protect the moving part of the scope from dust. When the rubber is damaged, you can easily replace them by hand.\nDB510-0 for 6-60×56 Genesis front\nDB511-0 for 6-60×56 Genesis rear\nDB644-0 for 4-40×52 Genesis front\nDB644-0 for 4-40×52 Genesis rear","domain":"optical_engineering"}
{"url":"https://solarkinguk.com/led-lighting/led-panels","date":"2017-05-29T22:52:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463613135.2/warc/CC-MAIN-20170529223110-20170530003110-00052.warc.gz","language_score":0.942600667476654,"token_count":220,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__100501855","lang":"en","text":"The LED Panel Range has been developed to replace conventional 600 by 600 and 1200 by 600 Modular Luminaires, as well as offering various solutions between. All are designed to fit into conventional modular ceiling systems, however they can also be surface mounted or suspended to suit each individual requirement.\nThe Multi Chip lumenMax light sources are mounted within the aluminium extrusion around the edge of the luminaire, giving excellent uniformity of light across the panel, coupled with the efficient external driver giving an expected lifetime of more than 50,000 hours, ensuring the solution is virtually maintenance free. The panel design and flexibility makes it ideal for offices, retail, hotels, commercial, NHS trusts and educational establishments.\nThese luminaires are available with dimmable options, they can also be used in conjunction with external lighting controls to further reduce the energy consumption, allowing excellent versatility for almost any application.\nThe full range is available with an emergency back up option, suffix /EM3 to allow the luminaires to be incorporated into an emergency lighting installation complying with BS5266-1:2005.","domain":"optical_engineering"}
{"url":"http://bestviewbeauty.com/products/hair-removal-system/diode-laser-hair-removal-machine.html","date":"2019-05-25T00:57:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232257845.26/warc/CC-MAIN-20190525004721-20190525030721-00145.warc.gz","language_score":0.895773708820343,"token_count":305,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__209956837","lang":"en","text":"diode laser hair removal machine (bestview-bm100)\n1.3000W high power,808nm diode laser\n2.12 laser bar from Germany\n3.20mm * 20mm big spot size\n4.Up to 10HZ with motion treatment\n5.72 hours continue work\n6.Totally painless with permanent result\nThe diode laser hair removal machine system uses the optimal hair removal wavelength of 808nm diode for deep penetration into the dermis where the hair follicle is located.In treatment procedure, a series of low fluence, high repetition pulses increase the temperature of both the hair follicle and the surrounding,nourishing tissue to 45 degree Celsius. This more gradual heat delivery uses the chromophores into the surround tissue as reservoirs to effectively heat up the hair follicle. Thus, along with the heat energy absorbed directly by the hair follicle, it can damage the follicle and prevent hair regrowth.808nm diode laser machine is particularly effective to hair follicle melanocytes without injury surrounding tissue. The laser light can be absorbed by hair shaft and hair follicles in the melanin, and converted into heat, thus increasing the hair follicle temperature. When the temperature raises high enough to irreversibly damage the hairfollicle structure, after a period of natural physiological processes the hair follicles will disappear to achieve the hair removal.\nPlease Feel free to give your inquiry in the form below. We will reply you in 24 hours.","domain":"optical_engineering"}
{"url":"http://www.insulin-receptor.info/tag/ganetespib-small-molecule-kinase-inhibitor/","date":"2023-12-02T16:13:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100427.59/warc/CC-MAIN-20231202140407-20231202170407-00424.warc.gz","language_score":0.8878009915351868,"token_count":1068,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__116066862","lang":"en","text":"Supplementary MaterialsPresentation1. and fast technique that enhances the grade of the concentrate with no need for iterative adaptive wavefront modification. We verify our technique by calculating the performance of two-photon photolysis of caged neurotransmitters along the dendrites of the whole-cell patched neuron. Our outcomes present that encoding the chosen Zernike settings over the excitation light can improve light propagation through human brain pieces of rats as noticed with the neuron’s evoked excitatory post-synaptic potential in response to localized focal uncaging on the spines from the neuron’s dendrites. id of a proper wavefront modification is necessary. In this ongoing work, we present that people can appropriate for light distortions with a pre-derived wavefront modification that is particular to Ganetespib small molecule kinase inhibitor particular locations in optically dense human brain tissue. This enables us to pre-correct for light distortion without the wavefront sensing (Schwertner et al., 2004) and through the use of predictable Zernike settings measured opto-electrophysiological tests. Before performing tests with living cells, we initial used fixed tissues samples to recognize Zernike settings that persistently optimize the concentrate at different places within a chosen human brain region. It had been apparent in the iterative procedure a little subset from the settings may be used to optimize the concentrate. We then utilized these settings to boost the performance of 2P photolysis along dendrites of neurons inserted within mind slices. Two-photon photolysis releases chemically caged neurotransmitters (glutamate) near dendritic spines, therefore emulating synaptic inputs Ganetespib small molecule kinase inhibitor to the neuron (Callaway and Katz, 1993; Denk, 1994). We display that there is an optimum uncaging response on a select set of Zernike modes encoded within the excitation light. Using just these few pre-determined Zernike modes allows the wavefront correction to be made with a significantly reduced optimization process, which is definitely advantageous in time-critical experiments where the lengthy search for an ideal wavefront correction is not relevant. 2. Methods 2.1. recognition of zernike modes After calibrating the system with optical materials of known optical aberration (observe Supplementary Material 1), we proceed to optimize the laser focus through fixed mind tissues. Figure ?Number11 shows a schematic of this experiment starting with a graphical illustration of a cortical slice adapted from Ramn y Cajal (1909) (Number ?(Figure1a).1a). We fixed 100 and 300 m solid Rabbit Polyclonal to ZFYVE20 parasagittal mind slices from 15 to 19 day time aged Wistar rats (observe Supplementary Material 2 for mind slice preparation). A thickness of 100 m was chosen since we normally patch cortical neurons between 50 and 100 m deep within a 300 m solid mind slice for electrophysiology experiments. On the other hand, we also fixed 300 m solid slices to see if we can push our system to propagate our excitation laser through the entire thickness of the brain slice. The slices were placed in between two type-0 coverslips and observed under a custom-built microscope explained in Supplementary Material 3. The fixed mind slices were utilized for prior dedication of the Zernike mode correction schematically explained in Figure ?Number1b,1b, which illustrates an uncorrected beam propagating through the cells and Number ?Figure1c1c showing a wavefront corrected beam via Ganetespib small molecule kinase inhibitor a spatial light modulator (SLM). Open in a separate window Number 1 Schematic of the experiment. (a) A 3D visualization of a cortical mind slice (adapted and altered from Ramn y Cajal, 1909; Thanks to the Cajal Institute-CSIC, Madrid, Spain ?CSIC), teaching the organization from the neuropile. (b) Uncorrected light is normally scattered since it enters the mind tissue hence broadening the concentrate. (c) The spatial light modulator is normally encoded using a corrective wavefront to pay the aberrations presented by the tissues, producing a sharpened concentrate. In (b,c) the concentrate behind the sample is normally imaged with a surveillance camera. (d) The corrected concentrate within the test allows for optimum photostimulation using the neuronal response documented by the cup electrode. A representative picture of the concentrate as seen from the surveillance camera: (e) A broadened concentrate; (f) Restored concentrate after encoding a corrective wavefront over the laser beam. To derive the corrective wavefront, an iterative algorithm was put on increase the beam strength through the cut of the mind tissue. We discover corrective wavefronts on two essential cortical locations in the mind slice, the neocortex as well as the hippocampus namely. These regions are utilized for research of neuronal function frequently. Pieces of locally optimized stage corrective wavefronts in five (5) split positions at around 200 m aside were documented (see Figure ?Amount2).2). The metric utilized to get the aberration modification was extracted from the grade of the beam concentrate positioned in the bottom.","domain":"optical_engineering"}
{"url":"https://www.ncertpoint.com/2022/02/do-plant-light-bulbs-have-uv.html","date":"2023-12-08T00:01:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100705.19/warc/CC-MAIN-20231207221604-20231208011604-00130.warc.gz","language_score":0.9402660727500916,"token_count":1539,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__170773828","lang":"en","text":"The UV radiation emitted by incandescent and fluorescent bulbs is similar, although the levels are far lower when compared to reptile basking lamps or tanning bulbs. The sun is the most powerful generator of ultraviolet radiation.\nWhat’s more, are plant lights the same as ultraviolet (UV) lights in terms of effectiveness?\nYes, ultraviolet light is beneficial to plant development, but it may also be harmful to people and other living things if not handled appropriately. The full spectrum light should be designed to resemble natural sunshine in order to give the plants the impression that they are being grown outside.\nIt is also possible to inquire if fluorescent lamps emit ultraviolet radiation.\nAs it turns out, all fluorescent light bulbs contain mercury vapour, which when exposed to an electric current releases a large amount of ultraviolet radiation. This ultraviolet radiation is normally absorbed by an inner layer of molecules known as phosphors, which then returns to the outside of the bulb as harmless white light. However, if the phosphor coating fractures, ultraviolet light is allowed to escape.\nAlso inquired about was whether or not grow lights emit ultraviolet light.\nIf your grow light generates ultraviolet radiation, be sure to use eye protection! The majority of UV LEDs really only emit UVA light, which is considered to be safer and less destructive than UVB radiation. However, the reason why UVB light is advantageous to plants is because it causes harm to the plant, which prompts the plant to react with a defence, making UVB light the optimal light source.\nIs it possible to use a grow light in an ordinary lamp?\nGrow light kits with fixtures and reflectors are available for purchase, but for typical houseplants, any lamp or light fixture will suffice, provided the bulbs are chosen wisely and the lamps are placed in areas where the plants would benefit the most.\nThere were 28 related questions and answers found.\nIs it possible for a conventional light bulb to aid in the growth of plants?\nThe heat produced by standard incandescent bulbs is uncomfortable, and they are not very efficient. They emit a greater amount of red wavelength light than white. So, can a standard light bulb aid in the growth of plants? Yes, you may use them to develop a plant, but it is not the greatest idea.\nWhat hue of light is the most beneficial to plants?\nLight in the colours red and blue is the most beneficial for plant development, whereas green has the least influence. Plants may be damaged by ultraviolet light, which causes the leaves to burn. Supplemental lighting is used by greenhouse farmers to ensure that their plants develop to their full potential.\nWhat is the cost of a grow lamp?\nDaily electricity use costs $0.2735236 or $8.20 per month, based on a 365-day year. I can calculate that if I had a HID (high intensity discharge) light with a 600 watt bulb in it, it will cost me $30.90 per month using the same technique of computation as before. Of course, I could grow my own tomatoes and other veggies inside under a metal halide high intensity discharge lamp.\nIs it true that black light encourages plant growth?\nNo, most plants will not be able to grow under a black light if that is the only source of light available to them. If there is other light present, they will be able to develop beneath the black light, as long as the light is not too powerful or too near to them. The dark light itself, on the other hand, has no effect on the development of plants.\nWhat kind of lighting is most conducive to indoor plant growth?\nIncandescent lights are excellent for illuminating a room and growing low-light houseplants such as vines, ferns, and dracaenas, among other things. They are only marginally useful for growing plants that need a lot of light to thrive. The light produced by these lamps accounts for just around 10% of their total energy output, with the remaining 90% being heat.\nWhat are the benefits of UV lights?\nUV lamps are used in a variety of applications, including the curing or drying of materials such as inks and coatings, virus and bacterium disinfection, hygiene and infection control, fluorescence inspection, and tanning.\nIs it harmful to your eyes to use LED lights?\nAccording to the National Institutes of Health, LED light may cause eye damage. According to France’s government-run health authority, the “blue light” emitted by LED lights may harm the retina of the eye and interfere with the body’s normal sleep patterns. LEDs use just a sixth of the power required by an incandescent bulb to provide the same amount of brightness.\nIs it possible that LED lights might cause cancer?\nLED lights have not been shown to cause cancer in any studies that have been conducted. When it comes to light sources, exposure to ultraviolet radiation and dangerous compounds, such as those present in incandescent and fluorescent light bulbs, seems to be the most significant cause of cancer.\nIs it possible for LED grow lights to cause cancer?\nIn a similar vein, most LED grow light manufacturers do not include UVC in their supplementary UV lamps. The majority of UV lamps, on the other hand, will include both UVA and UVB. As you are surely aware, prolonged exposure to ultraviolet radiation in the absence of protective clothing may result in skin cancer. Excessive exposure to ultraviolet A (UVA) light has been related to retinal damage, including cataracts.\nDo cell phones produce ultraviolet light?\nThe blue light generated by your television, computer, and phone is referred to as high-energy visible light (HEV), and it is just as hazardous as, if not more so than, ultraviolet radiation. Mobile phones, tablets, and laptops have the potential to cause skin cancer by reflecting the sun’s damaging ultraviolet rays, according to experts.\nHow far away from plants should LED grow lights be placed?\nInstructions on How to Place a Grow Light Incandescent grow light bulbs should be placed at least 24 inches above your plants as a general rule of thumb. Lights with a reduced heat signature, such as fluorescent and LED bulbs, may be positioned 12 and 6 inches above plants, respectively.\nIs Blue Light a kind of UV light?\nOn the opposite end of the visible light spectrum, the blue light rays with the shortest wavelengths (and most energy) are referred to as blue-violet or violet light, depending on how they are perceived. As a result, the invisible electromagnetic photons that exist just beyond the visible light spectrum are referred to as ultraviolet (UV) radiation (ultraviolet radiation).\nAre UV plant lights a health hazard?\nMaintain the proper distance between the lights and the plants in order to prevent this. The vast majority of wavelengths are not hazardous. UV-emitting LED grow lights, on the other hand, are damaging to your eyes since they emit ultraviolet light. In this category, you’ll find fluorescent LED grow lights, high-pressure-sealed grow lights, and metal halide growing lamps among others.\nIs it true that LED lights emit radiation?\nIn contrast to other energy-efficient kinds of illumination, the LED bulb does not generate polluting radiation and, as a result, does not constitute a health risk to the user. LED lighting also does not produce ultraviolet or infrared radiation, does not contain mercury, and is immune to shocks and vibrations, even at very low temperatures.","domain":"optical_engineering"}
{"url":"https://sse.tongji.edu.cn/Data/View/2648","date":"2020-07-13T09:43:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657143354.77/warc/CC-MAIN-20200713064946-20200713094946-00199.warc.gz","language_score":0.9181730151176453,"token_count":462,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__225116662","lang":"en","text":"摘要：Technology for managing the light spectrum in everyday life and in special applications is developing rapidly. This is happening as well in the color measurement and management as in the control of lighting. A third trend interesting here is the use of mobile devices and applications.\nIn the presentation, an overview will be given to the spectral imaging technology and current trends, use of spectral shaping in the LED based lighting technology and some examples of mobile applications in these areas.\n报告人简介：Jussi Parkkinen is a Professor of Computer Science at the University of Eastern Finland, Finland. He specializes in spectral color science, lighting research and pattern recognition. He received his M.Sc. in medical physics in 1982 and his Ph.D. in mathematics in 1989, from the University of Kuopio, Finland. In 1989-1990 he was a visiting researcher at The University of Iowa, IA, USA, in 1990 a Visiting Professor at the University of Saskatchewan, Canada, in 1991-1992 Professor and the Head of Department of Computer Science at the University of Kuopio, Finland, in 1992-1998 Professor of Information Processing and in 1995-1998 Dean of the Department of Information Technology at the Lappeenranta University of Technology, Finland. Since 1999 he has been a Professor of Computer Science, in 1999-2005 the Head of Department of Computer Science, in 2006-2007 the Dean of Faculty of Science and in 2007-2009 the Vice Rector (research) at the University of Joensuu, Finland. He was in 2011-2014 the Head of Electrical and Computer Systems Engineering Discipline and in 2013 - 2014 the Deputy Head of School of Information Technology, Monash University Malaysia. He has been since 2011 a Guest Professor at the Tongji University, China and since 2014 an Adjunct Professor at the Monash University Malaysia. In 1995-1999 he was the chairman of the Finnish Pattern Recognition Society and he is a fellow of the International Association of Pattern Recognition (IAPR). He was the chairman of the CIE TC8-07 technical committee on Multispectral Imaging in 2004-2008. He is a recipient of the Raymond C. Bowman award by IS&T in 2013.","domain":"optical_engineering"}
{"url":"http://www.minledsigns.com/why-choose-led-display-sign/","date":"2020-09-20T10:38:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400197946.27/warc/CC-MAIN-20200920094130-20200920124130-00059.warc.gz","language_score":0.8528445363044739,"token_count":282,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__106905807","lang":"en","text":"The brightest – The pure light emitted by LED Display signs ensures improved legibility and contrast. Indoors they can give substantially more impact than other screen based solutions. And at up to twenty times brighter, LEDs are the only display technology suitable for outdoor use at all light levels.\nEliminate maintenance worries – With no moving parts, LEDs require no maintenance.\nLongest life and low whole life cost – Competitively-priced and providing over11 years of continuous full power brightness, LED display signs offer a cost-effective long-term alternative to other technologies.\nFlexibility in use – The slim, lightweight design of LED display signs offer maximum design versatility in size, format and mounting solutions.\nEasy to control – Smaller displays can be controlled from handheld keypads or simple to use PC software. Larger graphic or video screens have simple interfaces to create vivid sequences from standard image and video file formats.\nUp to 4.4 Trillion colours – Modern LED display signs are available in a multitude of shades including red, orange, yellow, white, blue or green. Full colour displays can show video with better colour resolution than any other type of screen technology.\nEnvironmentally friendly low power consumption – The low voltage of LED display signs offers an environmentally friendly solution that will also save you money through lower running costs.\nGet a Quote for your next project or Contact Us for free advice","domain":"optical_engineering"}
{"url":"https://newsela.com/articles/physics-nobel/id/5510/","date":"2017-06-29T07:09:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128323889.3/warc/CC-MAIN-20170629070237-20170629090237-00358.warc.gz","language_score":0.9539774060249329,"token_count":753,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__1999454","lang":"en","text":"Physics Nobel honors energy-saving lightbulbs\nThis year the Nobel Committee decided to honor a physics discovery that benefits us all: lightbulbs. The 2014 Nobel Prize in physics went to Isamu Akasaki, Hiroshi Amano and Shuji Nakamura for their discovery of blue light-emitting diodes (LEDs), which have enabled modern energy-efficient light sources.\n“Something like a fourth of our electricity consumption goes to illumination,” Nobel Prize committee member Olle Inganäs of Linköping University in Sweden said during a press conference Oct. 7 announcing the award. “Having much more light for much less electricity is really going to have a big impact.”\nThe new Nobel laureates worked for years to achieve blue LEDs, which, when combined with red and green LEDs, can create white light. The red and green versions have been around since the 1960s, but the blue took about another 30 years to accomplish. “A lot of big companies really tried to do this and they failed,” said Nobel committee member Per Delsing of Chalmers University of Technology in Sweden. “But these guys persisted and they tried and tried again and eventually they actually succeeded.”\nThe achievement required the growth of high-quality gallium nitride crystals, which are semiconductors. Inside semiconductors, electrons and “holes,” or spaces without electrons, can move around the crystal lattice to allow electrical current to flow. When the right voltage is applied to the semiconductor, electrons and holes will recombine and emit light. The wavelength of the light—the color—depends on the band gap, or the energy required to free an electron in the material. The band gap of gallium nitride allows it to create ultraviolet and blue light.\nThe white light sources enabled by the discovery of blue LEDs last much longer and require much less energy than traditional incandescent lightbulbs. Whereas incandescent bulbs use electricity to heat a metal filament, and therefore waste energy by releasing it in the form of not just light but heat, LEDs more efficiently convert energy directly into light, without the heat. LEDs also avoid pitfalls of other light sources, such as fluorescent lights, which rely on mercury. This technology now illuminates our smart phone screens and phone flashlights, as well as many household lights and even the twinkling lights put on Christmas trees. And because ultraviolet light kills bacteria, blue LEDs could potentially be used to sterilize water in the future, Delsing said. “I really think that Alfred Nobel would be very happy about this prize. He wanted his prize to be given for inventions that benefited mankind.”\nAkasaki and Amano worked together at the University of Nagoya to make the discovery, and Nakamura worked independently at the Nichia Chemicals company in Tokushima, Japan. He is now a professor of engineering at the University of California, Santa Barbara. He learned of his award Tuesday just before 3 a.m. local time, and phoned into the press conference to describe the feeling of winning. “It’s unbelievable,” Nakamura said. “It’s amazing. Unbelievable.”\nAkasaki was also informed by phone, but the Nobel Prize committee had not yet reached Amano when it made the announcement, because he happened to be flying from Japan to France. “I think actually they were not prepared for it,” said Staffan Normark, permanent secretary of the Royal Swedish Academy of Sciences. “They had not been waiting all day or all night for this call.”","domain":"optical_engineering"}
{"url":"https://www.emxinc.com/industrial-sensors/product/particulate-monitor/","date":"2018-06-24T10:42:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267866932.69/warc/CC-MAIN-20180624102433-20180624122433-00631.warc.gz","language_score":0.8541489243507385,"token_count":192,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__57138610","lang":"en","text":"The PMX Particulate Monitor can be used in a wide range of applications to detect changes in light transmission up to a distance of 30 ft. The light transmission is affected by smoke, dust and other airborne particulates.\nThe PMX is available in two styles: a board only configuration intended for integration into OEM equipment and in NEMA 4X housings for other applications that require a sealed enclosure.\nThe sensor provides a 2 digit display of signal strength for quick and easy system integration, PNP/NPN output with automatic selection and a 0-5V analog output for remote monitoring.\nThe PMX Particulate Monitor provides a cost effective solution to log light transmission variations and take action, such as activating exhaust fans, in industrial and commercial ventilation applications.\n- Demand control kitchen ventilation (DCKV)\n- Ventilation systems\n- Commercial cooking hoods\n- Factory venting\n- Exhaust systems\n- Environmental monitoring","domain":"optical_engineering"}
{"url":"http://www.picluck.net/media/1740763605756214651_4772283692","date":"2018-08-17T19:18:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221212768.50/warc/CC-MAIN-20180817182657-20180817202657-00683.warc.gz","language_score":0.8590503334999084,"token_count":114,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__8396023","lang":"en","text":"This is a sample of glass reinforced composite material set up for a high resolution #xray #computedtomography scan. On the left side of the image is the X-ray source housing and filter wheel. On the right side you can see the detector assembly. In this case, the detector assembly contains a scintillator to convert X-ray photons to visible light, an objective lens to magnify the image, and a #ccd detector. In some of the next posts we'll show you some awesome results from imaging these #fibers !","domain":"optical_engineering"}
{"url":"https://www.ilemong.com/the-secret-of-the-cats-eye-that-glows-at-night/","date":"2023-12-03T19:55:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.53/warc/CC-MAIN-20231203193127-20231203223127-00521.warc.gz","language_score":0.9492020010948181,"token_count":510,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__268838114","lang":"en","text":"People who are afraid of cats are mostly listening to unreliable legends and rumors, so that the innocent cat’s back is dark and mysterious image, especially the cat’s shining eyes in the dark, is enough to frighten these people. In fact, fear or rejection is usually caused by incomprehension and ignorance. If you understand that the cat has a “choroidal blanket” behind the retina, can help it get excellent night vision in the dark, and cameras, microscopes and other instruments are also borrowed from this principle, perhaps not so afraid of it!\nAccording to animal behaviorist Desmond Morris in the book “Cat Knowledge” explains that the cat’s eyes will shine in the dark because behind the cat’s eyes there is a light reflector called the “choroidal blanket” (or light blanket, light membrane), which acts like a mirror behind the retina and can reflect light back to the cells of the retina.\nWith the choroid blanket, cats can make the most of every bit of light that gets into their eyes and see on a dark street or in a room. Our human eyes absorb far less light than cats, and cats can see moving objects (such as mice) clearly in the dark, but humans can hardly see clearly. Therefore, feral cats move mostly at night, on the one hand, there are few people, and on the other hand, they have excellent night vision, which makes them the best hunters.\nIn addition to cats, dogs and crocodiles, many other animals have the same “device”. If you take a camera to a swamp where a large group of crocodiles live at night, turn on the flash to take a photo, you will get a picture of colorful crocodile eyes, reflecting different colors of light. Therefore, often when taking pictures of cats and dogs eyes light up, it is the same reason, but it is recommended that the flash should not hit their eyes directly, so as not to cause damage.\nThe cameras, telescopes, microscopes, monitors, projectors and even satellites commonly used around us all borrow this principle. Studies have shown that cats’ night vision is six times that of humans and dogs five times that of humans, which is much better than humans, but Desmond Morris said that this does not mean that cats can see in a completely dark place without a hint of light, and still need to use sound, smell and a keen beard to aid navigation.","domain":"optical_engineering"}
{"url":"http://surgicorperu.com/surgicorp%2C-productos%2C-leica-microscopios%2C-en.html","date":"2018-02-21T20:57:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813803.28/warc/CC-MAIN-20180221202619-20180221222619-00364.warc.gz","language_score":0.7690445780754089,"token_count":257,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__244062168","lang":"en","text":"Leica Microsystems has an excellent optics. Contrast, brightness, sharpness, resolution, color fidelity and excellent precision are hallmarks of Leica surgical microscopes. Leica OH4 the stand not only complements Leica M525 optics, but also improves entire microsurgical experience with greater movement, innovative lighting and some easy-to-use features.\nDesigned and made with the best materials and meeting the highest standards of quality, the Leica M525 OH4 most advanced microscope is manufactured to provide long life and excellent reliability. The microscope M525 OH4 fulfills Leica's vision of providing the best viewing conditions, and greater maneuverability for operations carried out successfully.\n- Comfort thanks to ergonomic design.\n- Bright images.\n- Safety unsurpassed patient.\n- Operating intra Fluorescence.\n- Display for operating room equipment.\n- Flexibility placement.\n- Increased maneuverability.\n- Available also F20 and F50 models.\nCall Center: (511) 275-2508\nCaminos del Inca 1767, Surco. Lima - Perú\nSURGICORP.COM | TODOS LOS DERECHOS RESERVADOS. 2016\nDesigned by socialcloudmkt.com","domain":"optical_engineering"}
{"url":"https://mechables.com/detachable-camera-flash-unlocking-the-power-of-light/","date":"2023-09-28T17:10:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510427.16/warc/CC-MAIN-20230928162907-20230928192907-00255.warc.gz","language_score":0.912956953048706,"token_count":752,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__156495346","lang":"en","text":"Camera flashes are essential for capturing great photographs in low-light conditions. However, the built-in flashes on most cameras have certain limitations in terms of their reach and power. Detachable camera flashes are a great solution to overcome these limitations, as they provide more flexibility and control over the lighting. In this article, we will discuss what a detachable camera flash is, how it works, its advantages, and some tips on how to use it effectively.\nWhat is a Detachable Camera Flash?\nA detachable camera flash is a flash unit that can be mounted on the hot shoe of a camera or used off-camera, connected by a cable. The flash unit is separate from the camera, which allows for greater flexibility in terms of positioning and control. These flashes are also known as external flashes or speedlights, and they are typically more powerful than the built-in flashes on most cameras.\nHow Does a Detachable Flash Work?\nDetachable camera flashes use a capacitor to store electrical energy, which is then released in a burst of light when the flash is triggered. They can be triggered in a few different ways, such as by a built-in sensor that detects low light levels, or by a signal from the camera itself. Some flashes also have a manual mode, which allows the user to adjust the power output and duration of the flash.\nAdvantages of Detachable Camera Flashes\n- More Power: Detachable camera flashes are typically more powerful than built-in flashes, which means they can illuminate a larger area and produce brighter images.\n- Greater Flexibility: Because detachable camera flashes are separate from the camera, they can be positioned in a variety of ways to create different lighting effects. This can include using the flash off-camera or bouncing the light off a surface to soften the shadows.\n- Better Battery Life: Detachable camera flashes use their own batteries, which means they don’t drain the camera’s battery as quickly as built-in flashes.\n- Faster Recycling Time: Detachable camera flashes can usually be fired more quickly than built-in flashes, which means you can take more photos in a shorter amount of time.\n- More Professional Results: Detachable camera flashes can produce more professional-looking results, especially when used in conjunction with other lighting equipment, such as reflectors and diffusers.\nTips for Using Detachable Flashes\n- Experiment with Different Angles: Try positioning the flash at different angles to create different lighting effects. For example, if you bounce the light off a ceiling or wall, you can create a softer, more diffused light.\n- Use Manual Mode: If your detachable camera flash has a manual mode, experiment with adjusting the power output and duration of the flash to create different effects.\n- Consider Using Multiple Flashes: Using multiple detachable camera flashes can create even more interesting lighting effects. For example, you could use one flash as the main light and another as a fill light to reduce shadows.\n- Get a Flash Diffuser: A flash diffuser can help soften the light from the flash and create a more natural-looking result.\n- Practice, Practice, Practice: Like any photography technique, using a detachable camera flash takes practice. Experiment with different settings and techniques to find what works best for you.\nDetachable camera flashes are a valuable tool for photographers who want more control over their lighting. They provide more power, flexibility, and control than built-in flashes, and can be used in a variety of ways to create different lighting effects. By following these tips and practicing your technique, you can take your photography to the next level with a detachable camera flash.","domain":"optical_engineering"}
{"url":"https://parts.olathetoyota.com/blog/4356/toyota-headlight-technology-night-driving/","date":"2023-06-04T10:22:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649741.26/warc/CC-MAIN-20230604093242-20230604123242-00045.warc.gz","language_score":0.9651325941085815,"token_count":888,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__253936477","lang":"en","text":"Toyota's Adaptive Headlight Technology: Why It Needs To Come To The U.S. Soon\nDid you know that about a decade ago, Toyota came up with some cool adaptive headlight technology? The technology uses a built-in camera to automatically detect other cars when the high beams are on. If the system detects a car, it dims the high beams to avoid blinding the other driver.\nToyota designed this cutting-edge adaptive headlight technology to:\n- Improve safety\n- Reduce distractions caused by high beams during nighttime\nIt's a great and innovative technology that will save lives and make nighttime driving much easier. Yet, it's still not available in the U.S.\nWhy Doesn't The U.S. Have This Adaptive Headlight Technology Yet?\nWhen Toyota first came out with this technology, it was put into 16,600 cars sold in Europe and Japan. It was not allowed in the U.S. due to an antiquated U.S. regulation that banned their use. The regulation is called Federal Motor Vehicle Safety Standard (FMVSS) Number 108. It was published in 1967. NHTSA has been tweaking it here and there since then. So there was some hope that NHTSA would change these regulations to allow adaptive headlight technology in the U.S.\nIn 2013, Toyota petitioned the NHTSA to offer this technology in the U.S. Toyota estimated that the technology could save nine out of the 2,334 pedestrians annually killed in the U.S. during dark driving situations. While that doesn’t seem like a lot of lives, saving even one life by improving regulations and using technology already available is a big deal.\nAt first, NHTSA was open to discussing the rule changes. But then NHTSA nixed the idea. In 2018, NHTSA announced that it was moving to amend the now 54-year-old regulations to allow this technology in the U.S. Some drivers got excited by the news, but nothing came out of it. At least not yet. It has been a few years, and NHTSA still hasn't moved an inch toward changing the regulations to allow this technology in U.S. vehicles.\nHow Toyota's Cutting-Edge Headlight Technology Works\nThe system uses cameras to detect other cars and automatically dim the portions of the high beam that would shine in other drivers’ eyes. High beams are necessary in some situations. Yet, they can blind oncoming drivers and compromise their safety on the road. Toyota's adaptive headlight technology offers the best of both worlds. You would no longer need to turn off your high beams every time a vehicle approaches you. You can leave your high beams on, and the system will dim them to a safe level that allows the other driver to see. That way, you can still see what's in front of you.\nHistorically, headlights have been limited to only two settings:\n- Low beams\n- High beams\nHaving an in-between setting automatically controlled by a camera/computer is the future of headlights. This advanced feature is more convenient and it makes nighttime driving much safer.\nIncreasing visibility at night through smarter technology and better regulations seems like a no-brainer. That's why a lot of people are confused by NHTSA's decision to not allow this life-saving technology on U.S. vehicles. Even other automakers like Audi have developed this technology for their vehicles, too.\nRight now, headlight technology in the U.S. is pretty rudimentary compared to that in many other countries.\nWill The U.S. Get Adaptive Headlight Technology Anytime Soon?\nToyota has its fingers crossed that NHTSA will finally allow adaptive headlight technology in the U.S. In May 2021, Zac Palmer of autoblog.com reached out to Toyota about this. Toyota informed him that the requested changes to the regulations are under review by the Biden administration.\nZac Palmer also reached out to NHTSA. The organization told him that it's open to the idea of changing the regulations. It only needs to \"first collect data and conduct research to measure the scope of any safety issue and to determine where the best safety benefits lies\".\nWe hope to see this advanced technology in Toyota cars sometime soon. Keep your fingers crossed!","domain":"optical_engineering"}
{"url":"http://www.designcruzer.com/toshiba-zl2-enjoy-3d-without-glasses/","date":"2017-02-27T23:01:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501173866.98/warc/CC-MAIN-20170219104613-00205-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9435315728187561,"token_count":1155,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__142885110","lang":"en","text":"Toshiba has decided to throw away the glasses with the new Toshiba ZL2 – Enjoy 3D Without Glasses, the first television for the home market that allows 3D without having to use something extra on the tip of the nose.\nHow Does The 3D\nThe human brain can extrapolate the three dimensions of an object (height, width and depth) from two-dimensional images by positioning the eyes in the skull that do get two slightly different images to the brain allowing him to perceive the volume and distance of objects that are to do (which is why a person who sees evil, or is blind in one eye, has difficulty in judging the distance that an object is, greatly increasing the difficulty, for example, driving a car).\nThe 3D visualization systems for film and TV work in much the same way. Are simultaneously shot in two planes of the same object at slightly different angles which are then encoded images that are offset from one another, but are shown so quickly that appear to be overlapping.\nAlready there are TVs that can do the conversion from 2D to 3D in real time. This is achieved through very powerful image processors in combination with software that makes the image analysis in order to know which area of the picture “sends back” and what it shows. The problem with these systems is that they can easily be “fooled” by error or sign of poor quality, or even the amount of static objects.\nThe modern 3D television is available in several flavors: active 3D glasses, 3D with passive glasses and now with the Toshiba ZL2 console and the Nintendo 3DS 3D without glasses.\nThe first method uses a pair of glasses that have lenses that are actually small LCD screens. Through a signal sent by the TV, the glasses synchronize with the two image fields that are assigned to each eye. Where is the field to be displayed to the left eye, the right is hidden by the LCD glasses and vice verse. It all happened so fast that you do not notice it. This system works, but it is expensive, mainly because of the glasses which also have the disadvantage of having to carry or batteries to always carry them.\nThe second method is similar to the first, but the two fields use a slightly different type of light that is blocked by each of the glasses. The 3D passive is cheaper and comfortable to wear, but lose in TV picture quality.\nThe third method, the 3D without glasses, uses the same 3D passive principle, but without the need for glasses. The 3D effect is obtained through a particular filter which is positioned in front of the screen which prevents the light of the image for the right eye to reach the left and vice verse. Until now, the major problem was the 3D goggles without there being the need for a specific location (usually the eyes must be at an angle of 90 degrees to display) to be able to view three-dimensional effect, as happens in the Nintendo 3DS.\nEnjoy 3D Movies Without Glasses\nThe Solution Of Toshiba\nIn ZL2, Toshiba got a c to enable up to nine people to see 3D TV without the need for a specific position is:\nFirstly a screen used 4K i.e. with the possibility of displaying images with 2x Full HD, or to 3840 x 2160 pixels, after a chamber used to detect the presence of the spectators, up to 9. Finally, the software uses the information from the camera to a column of pixels allocated to each of the viewers in order to be able to see all the 3D effects whatever viewing angle.\nDespite the large screen resolution, when you are viewing images in 3D ZL2 the resolution is limited to 720P for each of the spectators.\n3D Without Glasses And It works?\nWell ….Yes and no…\nYes because one gets a 3D effect interesting even very different angles of 90 degrees required in other solutions of this kind.\nNo, because the detection system of the spectators is not dynamic, which means that if you leave the place to go get the popcorn, sit back or when exactly the same place or will have to adjust the system again. To help, the TV shows you a screen marker that serves to find the ideal position to enjoy the 3D effect. Another thing, the 3D system does not like fluorescent light bulbs because, as the screens, the lights flicker and also have a frequency roughly equal to the screen which can cancel the 3D effect.\n- Screen 55 “QUAD-HD (3840 x 2160)\n- 3D without glasses\n- Board for detecting viewers\n- Conversion from 2D to 3D\n- Contrast Ratio 9000000:1\n- Free view and analogue tuner\n- Ambient light sensor\n- Recording to USB hard drive\n- 4x HDMI\n- 2x USB\nAnd is there life beyond 3D?\nYes! Definitely! The 55-inch 4K display is simply fantastic! The image processor can do up scaling to HD content and 4K results are very good. My only regret failing to find anything in 4K resolution native …\nStill, the results are impressive!\nThis ZL2 offers Internet access and the ability to install apps to access various services, the problem is that many of them do not work in our country. But obviously don’t blame on Toshiba.\nThe sound is good, because the space inside the box allows for resonance which does not “kill” the bass.\nSo Are You Ready To Buy It, To Enjoy Next Olympic games Of 2012?","domain":"optical_engineering"}
{"url":"https://www.cambridge-design.com/blog/shining-a-light-on-photomedicine/","date":"2024-04-18T01:56:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00818.warc.gz","language_score":0.9330694079399109,"token_count":1098,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__45404842","lang":"en","text":"Shining a light on photomedicine\nLight has become a powerful medical tool. Continuing advances in the understanding of biological interactions with light, and newly developing light technologies, have given rise to a wide range of light-based therapies. As a physicist, I use light to study and modify the properties of materials down to the nanoscale. My strong interest in biophysics and medical technologies has now inspired me to explore the world of photomedicine. There are many varied interactions between biological processes and light, hugely dependent on wavelength and intensity. Medical treatments and choice of light sources are dictated by the desired treatment outcome.\nA beam of light transfers energy. The more photons there are, the higher the light intensity and the more energy is transferred. The invention of the laser in 1960 introduced a light source capable of supplying high-intensity light with surgical precision. A laser can be used in place of a scalpel as a surgical instrument. The intense light tool can seal blood vessels and nerves as it makes an incision – reducing bleeding, pain and inflammation. High-intensity laser light is also used to destroy and remove cells and tissues through a process called photoablation. The absorption of laser light can raise the temperature of a cell so high and so rapidly that it is vaporised while leaving other tissue nearby unharmed. Laser ablation can be used to treat superficial and early stage cancers including some forms of skin cancer.\nLarge tumours which are causing blockages – e.g. in the throat – can be partially removed using an endoscope combined with a laser. Light can even be applied inside tissues and tumours in places which are hard to reach with traditional surgical techniques – for example, brain tumours. Live magnetic resonance imaging (MRI) can be used to guide a catheter containing a fibre-optic cable to a tumour. Once correctly situated, laser emission is engaged to heat the tumour, causing cell death by hyperthermia. An even greater degree of treatment localisation is becoming possible using nanoparticles, guided to cancerous cells by conjugation with specific antibodies. Designed to interact strongly with light for efficient conversion of light energy into heat, the nanoparticles allow for treatment with lower intensity light and with increased precision.\nPhotochemical processes are those which are triggered by the absorption of light. Perhaps the most famous photochemical process is photosynthesis, by which all plants generate chemical energy from sunlight. Human skin also demonstrates some photochemical interactions on the absorption of short-wavelength ultraviolet (UV) light – some negative and some positive. Famously, UV absorption in the skin enables the generation of vitamin D which is important for maintaining the health of bone, teeth and muscles. Sunburn is caused by direct photochemical damage to DNA in skin cells by UVB (280-315 nm) light absorption. UVA (315-400 nm) absorption can also be harmful indirectly by increasing the generation reactive oxygen species. Both damage mechanisms can increase the risk of developing skin cancer. Balancing the positive and negative impacts of UV exposure can be key to designing an effective treatment. UV light is often used to treat skin conditions including psoriasis by slowing the production of skin cells and suppressing the immune system. UV exposure is also used for repigmentation of skin in conditions which cause skin cells to lose their natural colour. UV illumination may also be used to stimulate wound healing and as an antibacterial agent – the latter is particularly relevant at time when resistance to antibiotic drugs is increasing.\nCancer therapy is also a large area in photochemical photomedicine. In a treatment called photodynamic therapy (PDT), photosensitive cancer drugs can be administered which are activated only when exposed to light. Limiting light exposure to the target treatment regions reduces side effects in healthy tissue. In late 2016, a trial of a prostate cancer treatment using a drug which is only activated when exposed to laser light was reported with very encouraging improvements in cure rates compared with traditional treatments. PDT may also be used to treat blood cancers by exposing blood treated with a photosensitising agent to light outside of the body.\nControlling exposure to light, particularly blue light, can be used to treat some sleep disorders and circadian rhythm (‘body clock’) disruption. Eyes contain photoreceptors which communicate time-of-day information to the brain’s central timekeeping zone. Increased artificial blue light exposure from device screens, for example, is suspected of causing disruption, and most laptops and smartphones now feature a ‘blue light’ mode to reduce blue light intensity according to the time of day. Products to increase ‘natural’ light exposure are also available – which claim to improve sleep patterns and treat seasonal affective disorder.\nDevelopments in our understanding of the interaction of the human body with light, and advances in light sources and light guiding technologies, have generated the enormous field of photomedicine. Surgical procedures and cancer therapies look set to continue to make use of laser light to improve precision and to extend treatments beyond traditional techniques. Advances in technology and continued innovation should lower the barriers to use, including the requirement of specialist training, access to equipment and cost. The market for natural light exposure management may mature as evidence of links between biological processes and artificial light exposure increases.\nFor light in medicine, the future is bright.","domain":"optical_engineering"}
{"url":"http://2015.uqcc.org/network/index.html","date":"2023-06-03T14:19:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649293.44/warc/CC-MAIN-20230603133129-20230603163129-00138.warc.gz","language_score":0.9261632561683655,"token_count":177,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__143222949","lang":"en","text":"Quantum Network across Tokyo\nTokyo QKD Network & Tokyo FSO Testbed at present and beyond\nTokyo QKD Network was inaugurated in October 2010 in a part of the NICT open testbed network \"Japan Giga Bit Network Extreme (JGN-X)\". Since then, QKD systems, QKD network technologies and various applications have been developed and tested on it. Some of these technologies are going out into user premises in 2015. Tokyo QKD Network will be offering a platform for developing security certification technologies, next generation QKD systems and new applications.\nTokyo Free Space Optical (FSO) Testbed has been constructed in August 2014 for field experiments on optical and quantum communications as well as optical sensing. It constitutes an 8 km terrestrial link between two terminals at the University of Electro-Communications and NICT.","domain":"optical_engineering"}
{"url":"https://lelandcheung.com/military-vehicles/camouflage-concealment/counter-optical-surveillance-measures/","date":"2024-04-18T11:11:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.28/warc/CC-MAIN-20240418093630-20240418123630-00569.warc.gz","language_score":0.8816871047019958,"token_count":3503,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__180205075","lang":"en","text":"In the realm of modern surveillance tactics, the strategic deployment of counter-optical measures has become indispensable. From visual concealment techniques to sophisticated optical disruption methods, the evolving landscape of counter-optical surveillance presents a multifaceted approach to safeguarding against prying eyes and enhancing operational security.\nAs technology advances, the imperative for military vehicles to incorporate infrared evasion tactics and anti-reflective coatings has never been more crucial. These advancements not only bolster concealment in diverse environments but also pave the way for enhanced mobility and maneuver warfare strategies.\nOverview of Counter-Optical Surveillance Measures\nCounter-Optical Surveillance Measures encompass a range of strategies aimed at countering visual detection and reconnaissance efforts. These measures are crucial for enhancing security and operational effectiveness in various domains, including military, law enforcement, and corporate settings. By deploying optical countermeasures, organizations can mitigate the risks posed by intrusive surveillance techniques that rely on visual data collection.\nVisual Concealment Techniques form a fundamental component of counter-optical surveillance measures, involving methods to obscure or disguise entities from being visually detected. Such techniques can include camouflage, blending into surroundings, or employing disruptive patterns to reduce visibility and enhance concealment in diverse environments. Visual concealment plays a vital role in minimizing the visual footprint of objects or individuals under surveillance.\nOptical Disruption Methods, another key aspect of counter-optical surveillance, focus on disrupting or distorting the visual information captured by surveillance systems. By utilizing technologies such as laser dazzlers or strobe lights, these methods aim to create visual interference that impairs the clarity and accuracy of imaging systems, thereby impeding effective surveillance operations. Optical disruption strategies are designed to introduce ambiguity and confusion into the visual data collected by adversaries.\nVisual Concealment Techniques\nVisual concealment techniques are strategies employed to hide objects or individuals from optical detection. These methods involve altering appearances to blend seamlessly with the surroundings, making them challenging to visually detect. By utilizing natural elements or specialized camouflage techniques, visual concealment enhances stealth capabilities and reduces the risk of detection by potential threats.\nOne common visual concealment technique is the use of mimicry, where objects imitate the appearance of their environment to become indistinguishable. This method is particularly effective in natural settings such as forests or deserts, where blending in with the surroundings is crucial for avoiding detection. Additionally, disruptive coloration techniques involve utilizing patterns and colors that break up the outline of an object, making it harder to identify against its backdrop.\nFurthermore, incorporating elements of depth perception in visual concealment techniques can create optical illusions that distort the perception of distance and shape. By manipulating shadows, highlights, and textures, objects can be disguised to appear differently than their actual size or location. These advanced techniques play a vital role in military operations, where effective visual concealment can mean the difference between success and compromise in tactical situations.\nOptical Disruption Methods\nOptical Disruption Methods aim to thwart surveillance efforts by interfering with the visual detection capabilities of potential adversaries. These tactics encompass a range of strategies designed to disrupt the optical signals and sensors used for reconnaissance and intelligence gathering. Key methods include:\nHeat Signature Reduction: By minimizing the heat signatures emitted by objects, such as military vehicles or personnel, these measures reduce their detectability through thermal imaging systems.\nThermal Shielding Technologies: Utilizing advanced materials and designs, thermal shielding technologies help to insulate objects from external thermal detection, hence mitigating the effectiveness of infrared surveillance.\nIn a world where visual intelligence plays a critical role in situational awareness and threat assessment, Optical Disruption Methods serve as a vital component of comprehensive counter-surveillance strategies, especially in military contexts where stealth and concealment are paramount. By leveraging these techniques, operatives can enhance their operational security and reduce the risk of being detected by hostile forces.\nInfrared Evasion Tactics\nInfrared evasion tactics are critical in avoiding detection by infrared sensors. Heat signature reduction involves technologies like thermal blankets or paints that minimize the vehicle’s thermal footprint, making it harder to detect by heat-seeking devices. Thermal shielding technologies further enhance this protection by insulating the vehicle against infrared detection, enhancing its stealth capabilities. These tactics are particularly valuable in military vehicles where concealment is crucial for operational security.\nHeat Signature Reduction\nHeat signature reduction is a critical aspect of counter-optical surveillance measures, especially in military operations. By minimizing the thermal footprint emitted by vehicles or equipment, heat signature reduction techniques aim to obscure detection by infrared sensors. This decrease in heat emissions makes it challenging for adversaries to pinpoint the exact location of military assets.\nThermal shielding technologies play a crucial role in heat signature reduction by dissipating, absorbing, or redirecting heat to lower the overall thermal output. These specialized materials and coatings are designed to enhance the camouflage effectiveness of military vehicles, reducing their visibility to thermal imaging systems used in surveillance operations. Implementing such technologies can significantly improve the tactical advantage on the battlefield.\nIncorporating heat signature reduction techniques not only enhances the stealth capabilities of military vehicles but also increases their survivability in hostile environments. By minimizing the thermal contrast between the vehicle and its surroundings, these measures help evade detection and targeting by enemy forces equipped with infrared surveillance systems. Effective heat signature reduction strategies are indispensable in modern warfare scenarios, where advanced sensor technologies are increasingly prevalent.\nThermal Shielding Technologies\nThermal Shielding Technologies play a vital role in enhancing the survivability of military vehicles by reducing their heat signatures, thus making them less vulnerable to detection by infrared sensors. These technologies involve the use of specialized materials that can dissipate or absorb heat effectively, masking the vehicle’s presence from thermal imaging systems.\nBy incorporating advanced thermal shielding materials into the design of military vehicles, such as armored personnel carriers and tanks, operators can significantly lower the infrared radiation emitted by the vehicle, making it harder for adversaries to track its movements in the battlefield. This can provide a strategic advantage during reconnaissance missions or combat operations where avoiding detection is crucial.\nMoreover, Thermal Shielding Technologies not only improve stealth capabilities but also enhance operational effectiveness in diverse environments. Whether deployed in urban settings with numerous heat sources or rural terrains where natural thermal variations can give away positions, these technologies help maintain a low profile and increase the overall survivability of military assets, aligning with the objective of counter-optical surveillance measures.\nIn summary, the integration of Thermal Shielding Technologies offers a practical solution to mitigate the risks posed by infrared surveillance, enhancing the stealth and survivability of military vehicles in modern operational scenarios. By leveraging these innovative materials and techniques, armed forces can operate more securely in contested environments, gaining a tactical edge in the ever-evolving landscape of modern warfare.\nAnti-Reflective Coatings and Materials\nAnti-reflective coatings and materials play a pivotal role in reducing glare and minimizing light reflection in military applications. These coatings enhance optical efficiency by minimizing unwanted reflections, ensuring improved visual clarity and stealth capabilities on military vehicles.\nIn military vehicles, anti-reflective coatings are commonly applied to optical components like lenses and displays to reduce the risk of detection through glint or flash. By decreasing the amount of light bouncing off surfaces, these coatings help maintain a low profile, especially in urban and rural environments where visibility control is crucial.\nThese advanced coatings not only enhance camouflage effectiveness but also contribute to reducing the vehicle’s overall signature in different light conditions. By mitigating reflections that could give away a vehicle’s position, anti-reflective materials aid in maintaining operational security and enhancing survivability on the battlefield.\nIncorporating anti-reflective technologies in military vehicle design ensures optimal visibility management, aiding in thwarting potential optical surveillance attempts. By investing in these innovative materials, military entities can bolster their counter-optical surveillance measures, enhancing operational effectiveness and mission success.\nApplications in Military Vehicles\nIncorporating anti-reflective coatings and materials into military vehicles plays a vital role in reducing their visibility to optical surveillance systems. These coatings help minimize the reflection of light, making the vehicles less detectable in various environments, enhancing their stealth capabilities.\nBy applying these advanced materials, military vehicles can operate with increased effectiveness, especially in urban and rural settings where visual concealment is crucial for strategic maneuvers. The use of anti-reflective technologies not only aids in camouflage but also contributes to the overall survivability and mission success of the military units utilizing them.\nFurthermore, the integration of these coatings on military vehicles enhances their ability to blend into the surroundings, providing a significant advantage in evading enemy detection. This technology is paramount in modern warfare scenarios, where maintaining a low profile and minimizing exposure to optical surveillance are paramount for mission accomplishment and troop safety.\nOverall, the application of anti-reflective coatings and materials on military vehicles underscores the importance of visual concealment as a strategic asset in counter-optical surveillance measures. The continued innovation and adoption of such technologies will undoubtedly shape the future of military operations, ensuring a higher level of operational security and tactical advantage on the battlefield.\nBenefits in Urban and Rural Environments\nIn both urban and rural environments, the application of anti-reflective coatings and materials on military vehicles offers substantial benefits. By minimizing the visual signature, these technologies enhance stealth capabilities, making it challenging for potential threats to detect and target the vehicles effectively. This advantage is particularly critical in densely populated urban areas where concealment and camouflaging play a crucial role in operational security.\nMoreover, in rural settings characterized by varying terrain and vegetation, such materials contribute to blending military vehicles seamlessly into the surroundings. This integration enhances the vehicles’ capacity to operate covertly, avoiding detection by hostile forces or surveillance systems that rely on optical surveillance methods. In these environments, the use of anti-reflective coatings and materials underscores the strategic advantage of maintaining a low profile while conducting missions or maneuvers.\nAdditionally, the reduced reflection and visual presence of military vehicles achieved through anti-reflective technologies not only increase survivability but also support mission effectiveness. In scenarios where maintaining a tactical advantage is paramount, the ability to operate without attracting undue attention ensures operational success and minimizes the risks associated with potential threats. Thus, the strategic deployment of such counter-optical surveillance measures significantly bolsters the overall security and efficiency of military operations in diverse urban and rural environments.\nSignal Deception and Misdirection\nSignal deception and misdirection play a pivotal role in thwarting surveillance efforts by manipulating or obscuring transmitted signals, including radar pulses or communication frequencies. By emitting false signals or redirecting existing ones, this technique confuses adversaries, leading to inaccurate targeting or compromised intelligence gathering.\nIn military operations, signal deception involves techniques such as spoofing, where false information is generated to mislead enemy sensors or surveillance systems. Misdirection, on the other hand, involves altering the perceived location or movement of assets to create a false trail or disorient the enemy, leading to confusion and strategic advantage.\nBy implementing signal deception and misdirection effectively, military forces can disrupt enemy reconnaissance efforts, protect vital assets, and create opportunities for successful counterattacks. These tactics are not only instrumental in modern warfare but also continually evolving with advancements in technology to stay ahead of sophisticated surveillance techniques.\nSurveillance Radar Jamming\nSurveillance Radar Jamming involves disrupting enemy reconnaissance efforts by emitting signals that interfere with their radar systems, rendering them ineffective. This technique confuses and misleads adversaries, providing crucial cover for military operations.\nKey methods in Surveillance Radar Jamming include:\n- Emitting false radar signals to deceive enemies.\n- Jamming radar frequencies to create interference.\n- Applying advanced electronic warfare tactics for sustained disruption.\nEffective Surveillance Radar Jamming enhances operational security, concealing troop movements and thwarting enemy detection. By integrating this strategy into counter-optical surveillance measures, military forces gain a significant advantage in combat scenarios.\nMobility and Maneuver Warfare\nIn modern warfare, Mobility and Maneuver Warfare play a pivotal role in evading optical surveillance and gaining a tactical advantage. Military units utilize rapid movement and strategic positioning to outmaneuver adversaries, making it challenging for optical surveillance systems to track and target them effectively. By constantly changing positions and utilizing diverse terrain features, troops can disrupt the enemy’s visual surveillance capabilities.\nFor instance, military vehicles equipped with advanced mobility capabilities such as high speed, off-road maneuverability, and stealth features like visual concealment techniques can effectively evade optical detection. These vehicles can quickly traverse varied landscapes, blending into surroundings and minimizing their optical signature, thus enhancing their chances of avoiding detection by surveillance systems seeking to target them.\nMoreover, the integration of Mobility and Maneuver Warfare tactics with other counter-optical surveillance measures like Infrared Evasion Tactics and Signal Deception can create a synergistic effect, complicating the adversary’s surveillance and targeting efforts further. This coordinated approach enhances operational security and increases the survivability of military assets in increasingly complex battlefield environments, showcasing the importance of adaptability and agility in modern warfare strategies.\nIntegration of Sensor Fusion Technologies\nIntegration of Sensor Fusion Technologies involves merging data from multiple sensors to enhance situational awareness and provide comprehensive surveillance capabilities. This approach combines information gathered from various sources such as visual, infrared, and radar systems to create a complete picture of the environment. The fusion of sensor data enables real-time analysis and interpretation, offering valuable insights for identifying potential threats and implementing effective countermeasures.\nIncorporating Sensor Fusion Technologies improves the accuracy and reliability of surveillance systems, enhancing the ability to detect and track optical threats effectively. By integrating data from different sensors, including those focused on counter-optical surveillance and visual concealment, operators can optimize decision-making processes and respond promptly to emerging situations. This technology enables seamless coordination between disparate sensor systems, facilitating a holistic approach to monitoring and countering optical surveillance attempts.\nBenefits of Sensor Fusion Technologies in counter-optical surveillance include increased operational efficiency, reduced false alarms, and enhanced target recognition capabilities. The integration of diverse sensor data provides a more comprehensive understanding of the environment, enabling security personnel to adapt strategies proactively and mitigate potential risks effectively. Sensor fusion plays a crucial role in modern defense strategies, particularly in enhancing the resilience of military vehicles and improving overall situational awareness in challenging operational environments.\nFuture Trends in Counter-Optical Surveillance\n• Advancements in Nanotechnology: Nano-engineered materials will enhance visual concealment and anti-reflective capabilities, revolutionizing optical countermeasures.\n• Integration of Artificial Intelligence (AI): AI algorithms will improve real-time threat detection and response, optimizing counter-optical surveillance strategies.\n• Enhanced Sensor Fusion Technologies: Integration of multiple sensor data streams for comprehensive situational awareness, enabling more effective counter-surveillance operations.\nIn an era of evolving optical surveillance techniques, staying ahead demands embracing innovative technologies and interdisciplinary approaches. The future landscape of counter-optical surveillance pivots on technological breakthroughs that outpace adversarial optical advancements. By leveraging emerging trends like nanotechnology, AI, and sensor fusion, security forces can proactively adapt to dynamic surveillance challenges, ensuring strategic superiority in an increasingly complex optical environment.\nInfrared Evasion Tactics play a vital role in countering optical surveillance by reducing the heat signature emitted by military vehicles. Heat signature reduction involves strategic design elements like minimizing exhaust temperature to evade detection by thermal imaging systems. Additionally, Thermal Shielding Technologies are utilized to manage heat dispersion effectively, mitigating the likelihood of detection.\nAnti-Reflective Coatings and Materials form another crucial aspect of optical countermeasures, particularly in military vehicle applications. By reducing reflections off surfaces, these coatings enhance visual concealment, rendering the vehicles less conspicuous in both urban and rural environments. The benefits extend to improved operational security, minimizing the risk of detection in varied settings.\nImplementing Signal Deception and Misdirection techniques contributes significantly to obscuring the optical signatures of military assets. By manipulating signals to mislead surveillance systems, this countermeasure confuses adversaries, leading to inaccurate assessments. Combining these tactics with Surveillance Radar Jamming enhances the overall effectiveness of countering optical surveillance, providing a multifaceted approach to stay concealed.\nIn the realm of modern warfare and security, the realm of counter-optical surveillance is a critical domain that continues to evolve. From the intricate visual concealment techniques to the innovative application of anti-reflective coatings, the arsenal of optical countermeasures plays a pivotal role in enhancing operational security and strategic advantage. As military vehicles traverse diverse terrains, the integration of these technologies not only ensures stealth and camouflage but also bolsters survivability in urban and rural settings. With a keen eye on the horizon, the fusion of sensor technologies and strategic mobility emphasizes the proactive stance in countering surveillance threats, paving the way for enhanced operational effectiveness and mission success.\nIn a landscape where technological advancements and adversarial intentions intersect, the future trends in counter-optical surveillance not only underscore the imperative of adaptation but also resonate with the essence of staying steps ahead in the intricate dance of surveillance and countermeasures. As we navigate the intricacies of optical disruption and signal misdirection, the synergy of innovation and practical application remains the linchpin for maintaining superiority in an increasingly dynamic and complex operational environment.","domain":"optical_engineering"}
{"url":"http://lovehighspeed.com/channel-4-formula-1-trailer/","date":"2019-10-18T18:45:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986684425.36/warc/CC-MAIN-20191018181458-20191018204958-00028.warc.gz","language_score":0.8333812355995178,"token_count":128,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__159611389","lang":"en","text":"Production Company: Channel 4 Creative\nDirector of Photography: Matt Fox\nPhantom Technician: Jesse Llande\nCamera: Phantom Flex4K\nPhantom Flex4K 128GB RAM camera package and technician supplied by Love High Speed for this TV commercial. Super slow motion elements filmed on location to produce this Channel 4 – Formula 1 Trailer.\nMounted on a crane, the Phantom camera was controlled remotely, for quick easy operation.\nVision Research’s Phantom Flex4K high speed camera shoots at a resolution of 4096×2304 up to 938fps and 3840×2160 up to 1,000fps.","domain":"optical_engineering"}
{"url":"https://plosjournal.deepdyve.com/lp/multidisciplinary-digital-publishing-institute/novel-high-resolution-lateral-dual-axis-quad-beam-optical-mems-pUmmQtfXlV","date":"2022-12-07T14:50:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711162.52/warc/CC-MAIN-20221207121241-20221207151241-00118.warc.gz","language_score":0.9004140496253967,"token_count":5232,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__37875754","lang":"en","text":"Novel High-Resolution Lateral Dual-Axis Quad-Beam Optical MEMS Accelerometer Using Waveguide...\nMalayappan, Balasubramanian;Krishnaswamy, Narayan;Pattnaik, Prasant Kumar\nhv photonics Article Novel High-Resolution Lateral Dual-Axis Quad-Beam Optical MEMS Accelerometer Using Waveguide Bragg Gratings 1 2 Balasubramanian Malayappan and Narayan Krishnaswamy 1, and Prasant Kumar Pattnaik * Department of Electrical and Electronics Engineering, BITS-Pilani, Hyderabad Campus, Hyderabad 500078, India; firstname.lastname@example.org Department of Electronics and Communication Engineering, Sai Vidya Institute of Technology, Bengaluru, Karnataka 560064, India; email@example.com * Correspondence: firstname.lastname@example.org; Tel.: +91-40-66303612 Received: 8 June 2020; Accepted: 4 July 2020; Published: 18 July 2020 Abstract: A novel lateral dual-axis a-Si/SiO waveguide Bragg grating based quad-beam accelerometer with high-resolution and large linear range has been presented in this paper. The sensor consists of silicon bulk micromachined proof mass suspended by silica beams. Three ridge gratings are positioned on the suspending beam and proof mass to maximize sensitivity and reduce noise. Impact of external acceleration in the sensing direction on the Bragg wavelength of gratings and MEMS structure has been modelled including the effects of strain, stress and temperature variation. Acceleration induces stress in the beam thus modifying the grating period and introducing chirp. The differential wavelength shift with respect to reference grating on the proof mass is the measure of acceleration. To compensate for the effect of the weight of the proof mass and increase the sensitivity of the sensor, electrostatic force of repulsion is applied to the proof mass. For the chosen parameters, the designed sensor has a linear response over a large range and a sensitivity of 30 pm/g. The temperature of surroundings, which acts as noise in sensor performance is compensated by taking differential wavelength shift with respect to reference grating. By design and choice of material, low cross-axis sensitivity is achieved. The proposed design enables a high-resolution well below 1 g/ Hz and is suitable for inertial navigation and seismometry applications. Keywords: accelerometers; high-resolution; quad-beam MEMS; differential measurement; coupled-mode theory; nano-grating 1. Introduction Microelectromechanical systems (MEMS) technology finds various applications because of low cost, small size, ease of fabrication and reliable performance. Sensing is arguably the most prominent application of MEMS with branches that have developed into full-fledged fields like RF-MEMS, BioMEMS, microfluidics and optical MEMS. MEMS sensors based on capacitive, piezoelectric and piezoresistive effects are limited in their performance due to electromagnetic interference (EMI). Capacitive and piezoelectric sensing requires that the electronic sensing must be placed nearby the sensor itself. Integrated sensors using optical readout methods, however, are unaffected by EMI and also do not add to the electromagnetic radiation acting as noise for the other sensors and devices in the vicinity, thus improving device performance [1–5]. Optical readout techniques offer very high sensitivity and resolution. Among optical components, Bragg gratings are widely used for various sensing applications because their response characteristics can be made sensitive to different external conditions like Photonics 2020, 7, 49; doi:10.3390/photonics7030049 www.mdpi.com/journal/photonics Photonics 2020, 7, 49 2 of 18 temperature, material, stress and pressure. Bragg gratings act as guided-wave optical reflection filters. The filter characteristics from centre frequency/wavelength, full-width at half maximum (FWHM), main lobe power and side-lobe powers are dependent on the properties of the gratings and its surroundings. Coupled-mode theory is used to analyze the Bragg grating properties. By design, Bragg gratings are not point sensors as their response depends on the conditions throughout its length. This makes Bragg gratings and particularly fibre Bragg gratings (FBG) an economically attractive solution for various sensing applications [6–8]. Optical MEMS sensors based on the interaction of MEMS structure with free space light or light in the optical fibre are limited in scope as they cannot be subject directly to vibration or acceleration. However, the integration of optical devices with MEMS enhances the performance of the sensor. Photonic-Integrated-Circuits (PIC), which hold promise of vastly improved performance with much reduced cost and power consumption by miniaturization of optics, are rapidly maturing for silicon platforms with standardization of various photonic library components . Optical MEMS based PICs, which rely on a change in optical properties of a waveguide by electromechanical actuation, have been found to have excellent potential for scalability due to low optical loss and device footprint in addition to low power consumption . Thus, optical MEMS sensors based on integrated light guidance are an attractive avenue for further research and development. An accelerometer is a sensor used to measure acceleration forces and are used for applications ranging from seismic prospecting, vibration measurement, constant/static force measurement to inertial navigation. Accelerometers are needed in several areas, where the change in speed or vibration in an object needs to be monitored or measured. Quad-beam-mass accelerometer is a popular MEMS accelerometer design commonly used with piezoresistive sensing elements . In the quad-beam accelerometer design, due to acceleration experienced by the device frame, stress is introduced into the suspending beams. By integrating sensing components to the beams, the acceleration is measured. Table 1 presents a summary of various optical sensing techniques for accelerometers. Encoding of acceleration in intensity of the output optical signal is a simple and efficient mechanism for optical sensing suitable for harsh environmental conditions. In this technique, movement of proof-mass either modifies the coupling between light input and output paths [12–14] or blocks the optical path [15,16]. It is a process amenable to integration into PIC. However, these designs have poor fundamental resolution limits. Integrated optical MEMS accelerometers based on microring resonators and racetrack resonators with a sensitivity of 0.015 m/g have been proposed for seismic prospecting [17,18]. The dynamic range of ring resonator based sensors is limited by the small displacement range over which optical coupling takes place. A high-resolution integrated resonant accelerometer based on an optical microdisk resonator was demonstrated in  where the photoelastic effect caused a shift in resonance frequency. To increase sensitivity, the microdisk was integrated with resonant tether of resonant accelerometer instead of the suspending arm. By using a narrow linewidth laser locked to an operating wavelength close to the resonance peak, a linear range of operation with a DC sensitivity of 6 g/ Hz for device natural frequency of 16.3 kHz has been obtained. In [20,21], fibre is drawn and wound into microrings, which are positioned on sensitive regions of MEMS structures. This eliminates the need for light input and output coupling. For ring resonator based sensors, the acceleration is encoded in the resonance wavelength of the ring. Table 1. Commonly used optical sensing techniques for accelerometers. Sensing Technique Sensitivity Range Bandwidth Remarks Intensity Modulation [12–16] Low Low Medium Amenable to integration; free-space light propagation; source noise is crucial Ring resonators [17–21] High Low High Small footprint; non-linear sensor output; guided-wave propagation; wavelength shift due to acceleration Photonics 2020, 7, 49 3 of 18 Table 1. Cont. Sensing Technique Sensitivity Range Bandwidth Remarks Photonic Crystals [22,23] High Low High Coupling light into and out of sensor is challenging; guided-wave propagation; photonic bandgap is modified Diffraction Gratings  High Low Low to High Free-space light propagation; complex packaging; high sensitivity requires complex detection mechanism Interferometers [3,25–29] Low to High High Low to High Free-space light propagation; precise positioning and alignment needed Bragg gratings [30–36] Medium High Low Guided-wave propagation; wavelength-encoded acceleration; advanced interrogation schemes allow sub-pico strain detection In , the authors demonstrated a high-resolution integrated accelerometer using photonic-crystal nanocavity. A resolution in the order of ng/ Hz has been demonstrated based on the coupling of the optical field from delicately tapered fibre held in the evanescent region of the photonic-crystal zipper cavity. In , a nano-g accelerometer based on sub-wavelength diffraction gratings has been demonstrated. Although by optimizing the detection circuit, resolution close to the limits of optical sensing that were shown for this sensor requires complex packaging. Fabry-Pérot interferometric cavities formed with MEMS structures are popular for accelerometers as the accelerometer proof-mass itself can act as a reflecting end-face to form the cavity. The sensitivity of this class of sensors has been enhanced by increasing mechanical sensitivity [3,27–29] and moving from intensity based detection to coherence demodulation  to phase-generated-carrier (PGC) modulation . As the FP cavity length is mechanically modified due to acceleration, this method is based on free-space or unguided propagation of light which poses challenges in terms of quality of alignment and packaging and incurs high optical losses. Fibre Bragg grating (FBG) based accelerometers have been extensively researched and have been shown useful for high sensitivity measurement over a large range [30,32,33]. High resolution FBG based accelerometers have been demonstrated when used in combination with other resonant structures like ring resonators , a Fabry-Pérot (FP) cavity , -shifted fibre Bragg gratings (PSFBG) , ultrastable lasers [34,39] and actively locked lasers using radio-frequency modulation [35,40]. Though silicon-on-insulator (SOI) based planar waveguide Bragg gratings have been applied to other sensing applications like pressure sensors [41,42], the integration of silicon based Bragg grating into PIC has not matured after the initial excitement based on silicon-nitride waveguides . Polymers are an attractive option for planar optical MEMS sensors as waveguides and Bragg gratings can be written directly onto a substrate. Polymer planar Bragg gratings based on materials like polymethylmethacrylate (PMMA) and TOPAS have been used to demonstrate strain sensors [36,43]. Properties of polymer Bragg gratings depend on humidity apart from temperature and strain and humidity immunity is important for robust performance . The major challenge with using Bragg gratings as strain sensors/accelerometers is that for high resolution (requires sharp Bragg peak), long grating length is required. Thus, the integration of planar waveguide Bragg gratings into MEMS requires relatively large structures. Waveguide Bragg grating based accelerometers are suited for high sensitivity quasi-static acceleration measurements like in seismometry. Since PIC components are generally based on a silicon/SOI platform, we present a planar Bragg grating high-resolution dual-axis accelerometer on silicon substrate. In this paper, we present the design and analysis of high-resolution integrated waveguide Bragg grating based optical MEMS quad-beam lateral two-axis accelerometer with a large linear range. Photonics 2020, 7, 49 4 of 18 The silicon wafer based accelerometer has silicondioxide beams and amorphous-silicon(a-Si) optical waveguide and gratings on these beams for the sensing elements. In our earlier works [45,46], we reported a simulation model of single axis accelerometer based on waveguide Bragg gratings. In this work, the design of a novel configuration of lateral quad-beam optical MEMS accelerometer for multi-axis sensitivity with suppressed cross-axis sensitivity and immunity to environmental effects is presented. Further, detailed analysis of the mechanical and optical response of the proposed optical MEMS device has been done. In Section 4, plausible fabrication steps for realizing the proposed device and set-up for interrogating the sensor are detailed. Finally, results and conclusions are presented in Sections 5 and 6. 2. Sensor Configuration Figure 1 shows a schematic of the proposed waveguide Bragg grating based MEMS quad-beam accelerometer with multi-axis sensitivity. The sensor consists of an amorphous-silicon (a-Si) waveguide with three Bragg gratings, Grating-1, Grating-2 and Grating-3 of different Bragg wavelengths such that their filter characteristics do not overlap, as shown in Figure 2. Grating-1 and Grating-3 are each integrated with two perpendicular suspending beam of the accelerometer. Transmitted Light Grating-3 Reflected Light Bulk Silicon SiO Amorphous Silicon Grating-1 Grating-2 Incident Light Figure 1. Schematic design of waveguide Bragg grating based Quad-Beam accelerometer: (Inset shows a cross-section view of one beam with amorphous-silicon(a-Si) waveguide and grating). Figure 2. Reflection spectra of proposed sensor showing Bragg peaks of Grating-1, Grating-2 and Grating-3. Normalized Power Photonics 2020, 7, 49 5 of 18 Grating-2 is integrated on the proof-mass and acts a reference for acceleration measurement. The Bragg gratings are in series configuration with reflected light showing three peaks as in Figure 2 when broadband input is launched. Light is launched into the device through an integrated directional coupler which acts as a circulator  to enable collection of reflected light as the output. When the device frame is subject to a force, the proof mass displaces thus inducing stress in the suspending beams, which eventually results in a shift of Bragg wavelengths and reflection spectrum characteristics for Grating-1 and Grating-3. Depending on the direction of acceleration, the beams are either subject to compressional or tensile stress corresponding to blue or red shifts in the Bragg peaks. Grating-2 is insensitive to any external acceleration and acts as reference for noise cancellation due to variation of temperature experienced by the device. 3. Sensor Design and Mathematical Modelling Figure 3a shows the side view of the portion of the sensor showing beam dimensions and compositions. The waveguide core material is taken as amorphous silicon (a-Si) based on the proposed fabrication procedure detailed in Section 4. A silicon wafer is used as substrate for the sensor instead of SOI platforms. The buried-oxide (BOX) layer thickness in typical SOI platforms is limited to below 5 m. Also, the device layer silicon of such waveguides is thick (in range of 5–10 m) and would require fine lapping, patterning and etching to realize the required dimensions. Instead, using a thermally oxidized silicon wafer of required thickness, a simple LPCVD process is sufficient to deposit silicon of the required thickness, which can then be easily patterned using IC photolithography. Hence, to simplify the fabrication process, the core material has been chosen as a-Si. Figure 3b shows typical stress and consequently the strain profile along beam length when subject to external acceleration. The sensor design and modelling will be discussed in following four subsections; mechanical properties of structure under acceleration studied using continuum mechanics, optical properties of waveguide Bragg grating due to stress and strain using coupled-mode theory, opto-mechanical coupling and sensitivity, cross-axis sensitivity and noise cancellation. 3.1. Mechanical Design of Quad-Beam Accelerometer Figure 3a shows the beams suspending the proof mass to be composed of silicondioxide (SiO ). Silicon proof mass is taken as a truncated pyramid with a square base, with a top side (L ) 4 mm and thickness (t ) 400 m. A truncated pyramid is considered to account for bulk-micromachined silicon proof mass. The density of silicon is taken as 2329 kg/m . SiO has much lower Young’s modulus and Poisson ratio than crystalline silicon. Strain induced in a material in response to applied stress/force is proportional to its Young’s modulus. Poisson ratio gives information of a material’s strain in a direction perpendicular to applied stress. Thus, a lower Young’s modulus and Poisson ratio is preferred for a multi-axis accelerometer, as it would yield higher response and lower cross-axis sensitivity. Under its own weight, the proof-mass of the quad-beam accelerometer displaces downwards inducing normal stress on the beam surface, T ¹zº given by , ow-normal 3¹l 2zº ¹ º T z = mg (1) ow-normal 2bh where b, h, l are the width, thickness and length of the beam respectively, g is the acceleration due to gravity and m is the mass of the proof-mass. The length of the beam is considered to be along the z-direction with z = 0 representing the position near the foot of the beam. For lateral acceleration of 1g applied parallel to one set of beams and perpendicular to the other, the in-plane stress components for the same amount of force are T ¹zº and T ¹zº, which can be taken as , ow-k ow-? ¹t hº ¹1.5L + lº T ¹zº = l 3z mg (2) ow-k bh L ¹L + lº p Photonics 2020, 7, 49 6 of 18 3¹l 2zº T ¹zº = mg (3) ow-? 2hb From the above equations, it is evident that beam geometry with a large width to height ratio is needed to minimize cross-axis sensitivity. The dimensions of proof-mass determine its mass and for maximizing the strain along beams, the mass must be maximized. Hence, based on practical considerations , the dimensions have been decided. The beams have a width of 210 m and height 5 m. The variation of all stress components along the length of the beam will follow the pattern of Figure 3b. As seen in Figure 3b, along the length of the beam suspending proof-mass, there is a change in sign of the strain (compressive to tensile or vice versa) with a portion of zero strain in the central region of the beam. The position where zero strain occurs and the amplitude and symmetry of stress distribution depends on the net magnitude and direction of acceleration experienced by the proof-mass. 5 µm 1200 µm 400 µm Bulk Silicon SiO Amorphous Silicon (a) Stress on beam surface (ı ) -ı L/2 0 L Position along length of beam (b) Figure 3. (a) Side view of portion of the sensor showing beam dimensions; (b) variation of stress along the length of the beam. The actuation of the waveguide Bragg grating depends on the strain along its length. To realize a lateral accelerometer, an electrostatic repulsive force equal to the weight of proof-mass is applied to minimize the normal stress. This can be achieved by metallizing the bottom surface of the proof mass, bonding the device with another wafer carrying an electrode and maintaining the same potential on both surfaces using external electrical supply. The separation(s) between electrodes determines the capacitance between two surfaces (C) and thus the potential to be applied for compensating the effect of weight. The electrostatic force, F for applied potential, V is given by, 1 dC F = V (4) 2 ds Photonics 2020, 7, 49 7 of 18 Amorphous silicon on top of the SiO layer represents the optical waveguide and has cross-section 2 2 dimensions in only the order of 4 m in contrast to the 1000 m cross-section area of the SiO . By rule of mixtures for the composite beam of individual Young’s modulus E and E having volume 1 2 fractions V and V respectively, for stress applied laterally to the stack of materials, the effective 1 2 moduli E is , eff E E 1 2 E = (5) eff E V + E V 1 2 2 1 Since the volume contribution of silicon waveguide in the structure is very low, it has a negligible impact on the effective Young’s modulus and thus the mechanical response of the device under acceleration. The fundamental vibration frequency ( f ) of the sensor is for out-of-plane vibration and is found using Rayleigh’s quotient as, 1 2E bh eff f = (6) 2 ml For the design values, f is found as 92.43 Hz and verified by finite element analysis using COMSOL Multiphysics. 3.2. Waveguide Bragg Grating Waveguide Bragg grating with surface-relief is designed for wavelengths around 1550 nm using TM mode for propagation. A rib waveguide with a core of a-Si height (d) of 1.5 m (slab thickness is 0.8 m and width 5 m), waveguide width 1.6 m runs over the SiO beam of 5 m thickness, which also acts as the cladding for the waveguide.The single-mode waveguide with the above dimensions satisfy the Soref condition  and have been reported earlier for realizing narrow bandwidth tunable Bragg grating based filters [50,51]. The slab of width 5 m is considered so that it does not adversely impact either the optical or mechanical properties of the sensor. The refractive indices of the core and cladding are 3.545 and 1.45, respectively. The mode profile for fundamental mode propagating in this waveguide obtained by beam propagation method (BPM) is given in Figure 4. The dotted line in Figure 4 shows the transverse cross-sectional dimensions of the waveguide. E Mode Profile (m=0, n =3.486) y eff 1.6μm 0.7μm 0.8 μm 5 μm Figure 4. Mode profile of the waveguide (dotted line shows the cross-sectional dimensions of the waveguide core). Photonics 2020, 7, 49 8 of 18 The longitudinal cross-section view of the Bragg grating is shown in Figure 5. For a grating of period , the Bragg wavelength, is (7) = 2n (7) B ef f where n is the effective refractive index of the waveguide calculated using waveguide analysis . ef f Period, Λ Air, RI =1 Incident Light Amorphous-silicon Transmitted n =3.545 core Light Reflected Light SiO n =1.45 clad Figure 5. Longitudinal cross-section view of surface-relief waveguide Bragg grating. As light propagates along the grating, due to the periodic corrugations, partial reflection occurs at each period. For light in which the wavelength satisfies the Bragg condition, the reflected and transmitted fields are in phase and thus the backward and forward propagating waves couple. The theoretical determination of this is performed using coupled mode theory [53,54]. Z-direction is the direction of propagation of light with grating boundaries at z = 0 and z = L . For all calculations, only the first order diffraction and fundamental mode have been considered. Coupled mode equations of a Bragg grating with R and S as complex-amplitudes of forward-running and backward-running modes considered for analysis are (8) and (9). dR = i ˆ R¹zº + iS¹zº (8) dz dS = i ˆ R¹zº","domain":"optical_engineering"}
{"url":"http://photographysilo.com/hot-off-press-sigma-corporation-announces-pricing-availability-new-24mm-1-4-dg-hsm-art-lens/","date":"2017-03-28T10:01:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189686.56/warc/CC-MAIN-20170322212949-00650-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8497990965843201,"token_count":1462,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__232963497","lang":"en","text":"This time around Sigma announces the pricing and availability of the New 24MM 1.4 DG HSM Art Lens as detailed in the official press release below:\nVersion:1.0 StartHTML:0000000149 EndHTML:0000011468 StartFragment:0000000199 EndFragment:0000011434 StartSelection:0000000199 EndSelection:0000011434\nSigma Corporation Announces Pricing and Availability of New 24mm F1.4 DG HSM Art Lens\nLatest Global Vision Art lens offers highest-quality optical performance in its class\nYOKOHAMA, Japan — February 11, 2015 – Sigma Corporation of America <http://www.sigmaphoto.com> , a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses <http://www.sigmaphoto.com/lenses/lenses_all.asp> , cameras <http://www.sigmaphoto.com/cameras/> and flashes <http://www.sigmaphoto.com/flashes/flashes_flashes.asp> , today announced the new Sigma 24mm F1.4 DG HSM Art lens <http://www.sigmaphoto.com/product/24mm-f14-dg-hsm-a> will become available next month for the street price of $849.\nThe 24mm F1.4 Art <http://www.sigmaphoto.com/product/24mm-f14-dg-hsm-a> wide angle lens is the ninth addition to the company’s iconic Global Vision <http://www.sigma-global.com/en/lenses/cas/product/index.html#product02> Art line-up. It is designed for full-frame DSLRs, and when used on digital cameras with an APS-C size image sensor, it effectively becomes a 38mm. The lens will be available in Sigma and Canon mounts next month, in Nikon mounts in April, and in Sony mounts later in the year.\n“With the addition of the 24mm F1.4 to the Art line-up, Sigma is continuing to redefine the expectations of fast-aperture full-frame prime lens performance,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “This lens is ideal for photographers and videographers looking to capture a variety of photography subjects, including cityscapes, mountain ranges, astrophotography and weddings.”\nThe 24mm also excels at indoor photography in low illumination thanks to the combination of exceptional focal plane sharpness, and gorgeous bokeh rendered by nine rounded aperture blades.\nThe Sigma 24mm F1.4 DG HSM Art lens will feature:\n· Both “F” Low Dispersion (FLD) glass and Special Low Dispersion (SLD) glass in a design of 15 elements in 11 groups to minimize chromatic aberration of magnification especially in the edge of the image field\n· The ability to achieve a maximum magnification of 1:5.3 with a minimum focusing distance of 9.8 inches\n· An optimized power layout that includes aspherical elements that are positioned in the rear of the lens for improved wide open performance\n· A new lens element design that delivers excellent peripheral brightness\n· A new full-time manual focusing mechanism that switches to manual focusing, that allows the photographer to make focus adjustments quickly and easily\n· Every 24mm will be tested using Sigma’s own MTF measuring system, “A1,” in the company’s factory in Japan\n· A size of 3.2in X 3.6in and weight of 665 g\nThe lens will be available in Canon, Nikon, Sony and Sigma mounts this coming spring. It’s also compatible with Sigma’s USB dock <http://www.sigmaphoto.com/shop/sigma-usb-dock> , allowing photographers to update the lens’ firmware and change focus parameters as well as manual focus over-ride using Sigma’s Optimization Pro software, and compatible with Sigma’s Mount Conversion Service <http://www.sigmaphoto.com/change-your-mount> .\nOther lenses in the Art line include 35mm F1.4 DG HSM <http://www.sigmaphoto.com/product/35mm-f14-dg-hsm-a> , 30mm F1.4 DC HSM <http://www.sigmaphoto.com/product/30mm-f14-dc-hsm-a> , 18-35mm F1.8 DC HSM <http://www.sigmaphoto.com/product/18-35mm-f18-dc-hsm-a> , 24-105mm F4 DG OS HSM <http://www.sigmaphoto.com/product/24-105mm-f4-dg-os-hsm-a> , 50mm F1.4 DG HSM <http://www.sigmaphoto.com/product/50mm-f14-dg-hsm-a> , 19mm F2.8 DN <http://www.sigmaphoto.com/product/19mm-f28-dn-a> , 30mm F2.8 DN <http://www.sigmaphoto.com/product/30mm-f28-dn-a> and 60mm F2.8 DN <http://www.sigmaphoto.com/product/60mm-f28-dn-a> .\nFor information about Sigma, go to www.sigmaphoto.com <http://www.sigmaphoto.com> or follow the company on Twitter <https://twitter.com/Sigma_Photo> , Instagram <http://instagram.com/sigmaphoto> and Facebook <http://www.facebook.com/SigmaCorporationofAmerica> .\nAbout Sigma Corporation\nSince 1961, Sigma has worked toward a single, simple goal: To imagine and develop photographic technologies that push the envelope, empower photographers and produce unparalleled imagery. We’ve honored this commitment by maintaining control of our design, research and development, and manufacturing processes in our own Aizu Factory. Our products are built with premium materials and are known worldwide for quality and performance. Our family-owned organization is the largest, independent SLR lens manufacturer in the world, producing more than 45 lenses that are compatible with most manufacturers, including Sigma, Canon, Sony, Nikon, Olympus, Panasonic and Pentax. Sigma Corporation also produces digital SLR cameras and high-definition digital compact cameras. The company is headquartered in Japan, with offices strategically located throughout Europe, Asia and North America. Photography is all we do, and it’s all we’ve ever done.","domain":"optical_engineering"}
{"url":"https://www.everymanshop.com/products/hayden-blue-light-reader-collection-new-matte-light-beige-walnut-wood-blue-light-reader-lens-0-00","date":"2020-12-05T05:20:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141746320.91/warc/CC-MAIN-20201205044004-20201205074004-00555.warc.gz","language_score":0.8671601414680481,"token_count":289,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__179652880","lang":"en","text":"The Hayden Reader Collection\nThe Hayden Eco-Sustainable Blue Light Reader will keep eye strain and fatigue at bay with our premium blue light filtering lenses.\nOur Blue Planet Blue Light Filtering Glasses are available in standard reading strengths 1.25, 1.50, 1.75, 2.00, 2.25, 2.50 & 3.00, including no correction 0.00. The lenses are built with Blue Light protective technology to prevent eye strain and other harmful effects from the light emitted by digital screens by filtering 40% or more blue light rays emitted by digital devices.\nFor Every Pair Sold\nWith your help we have been able to help restore sight to over 1 million people and counting through our Visualize Change Program.\nIt’s time to show our planet some love, in addition to donating a pair of corrective glasses for every pair sold, we will also plant a tree.\nYour support allows us to get our hands dirty, every month the Blue Planet team volunteers in our local community.\nThe Cortez Collection The Cortez Eco-Sustainable Sunglass is our new round keyhole shape. It features walnut wood temples with spring hinges and offers 100% UVA/UVB Polarized Lenses. Includes a woven case...View full product details\nHaberdashery with Giveback\nUpdates on Products, Services, and Giveback Partners sprinkled with a few exclusives.","domain":"optical_engineering"}
{"url":"http://www.beaumonthospitals.com/robotic-technology","date":"2015-08-03T19:12:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-32/segments/1438042990112.92/warc/CC-MAIN-20150728002310-00051-ip-10-236-191-2.ec2.internal.warc.gz","language_score":0.9178451299667358,"token_count":304,"dump":"CC-MAIN-2015-32","global_id":"webtext-fineweb__CC-MAIN-2015-32__0__150796600","lang":"en","text":"Beaumont Hospitals and their surgical teams have always embraced new technologies such as the da Vinci surgical robot. Interested in learning more about the equipment used during one of these specialized procedures? The high definition technology used to improve our clinical outcomes is below.\nOur trained surgeons operate from this workstation while seated and viewing 3-D images of the operative field. With enhanced dexterity and control, the surgeon uses the master controls, while the surgical instruments mimic the hand, wrist and finger movements seamlessly inside the patient.\nThese instruments provide unmatched precision for suturing, cutting and tissue manipulation, identically matching the surgeon's wrist, hand and finger movements. With its ability to match the surgeon's hand movements and reach around corners, the EndoWrist instrument exceeds traditional laparoscopic instruments.\nSupported by other members of the surgical team, the patient-side cart is made up of three or four robotic arms (up to three EndoWrist instruments and one 3D camera), which administer the surgeon's exact movements and perform the surgery inside the patient. These arms function as extensions of the surgeon's hands.\nInSite Vision System\nInSite Vision provides enhanced, true to life 3-D images of the operative field. Operating images captured by this system are refined and optimized using illuminators and camera controls.\nUsing this equipment, it is obvious to see why robotic-assisted surgery at Beaumont means better outcomes for our patients. Learn more about the benefits of robotic surgery here.","domain":"optical_engineering"}
{"url":"http://crescentchemicals.co.za/optical_brighteners.html","date":"2022-08-08T00:57:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570741.21/warc/CC-MAIN-20220808001418-20220808031418-00582.warc.gz","language_score":0.9207600951194763,"token_count":158,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__104734897","lang":"en","text":"Many organic materials tend to go yellow in appearance through breakdown under UV or visible light. The breakdown products absorb blue light which in turn create the yellow appearance in daylight. To counter this effect it is possible to add materials which absorb UV light and then transmit it in the blue region. They have the ability to make whites appear ‘brighter’ as the eye interprets this blueness. The materials which provide this effect are called Optical Brighteners or alternatively are sometimes referred to as 'fluorescing whitening agents'.\nOptical Brightener OB is a fluorescent optical brightener that shows:\nOptical Brightener OB is recommended for applications such as:\nDue to the intrinsic light fastness properties of optical brighteners, Optical Brightener OB is recommended for indoor use only.","domain":"optical_engineering"}
{"url":"https://www.fibersensingstore.com/service/","date":"2023-03-27T12:37:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948632.20/warc/CC-MAIN-20230327123514-20230327153514-00347.warc.gz","language_score":0.9120107293128967,"token_count":1462,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__102928306","lang":"en","text":"To guarantee the best performance of our integrated photonics sensing solutions in your application environment, we offer a number of services and after sales support. As part of the Application Development & Support team, our dedicated field engineers provide you with world class installation services.\nWe support our customers also on-site around the world with application development support and repair service. Contact them via [email protected]\n1 Systems & Sensors\n1.1 Why choose our photonics sensing system over an electronic system?\nPhotonic sensors have several advantages over electronic systems: we can measure at high frequencies with high accuracy. Photonic sensors are small and can therefore be easily integrated with any setup. In contrast to electronic, a multitude of optical sensors can be attached to one wire. Photonic sensors are durable, with high resistance to hostile environments, and are insensitive to electromagnetic fields. The sensors do not contain metal parts and can be very resistant to ionizing radiation. Because of the small size, photonic sensors are very cost-effective, especially when produced in large numbers.\n1.2 What are the minimum and maximum distances between FBGs on an FBG array?\nBoth depend on the attenuation of the specific fiber. The minimum distance typically has one grating length of spacing. The maximum distance is between 1 and 10 km depending on the quality of the fiber.\n1.3 Is it possible to expand the number of sensors by using multiple PhotonFirst FBG interrogator units?\nYes, it is possible to expand the number of sensors. Depending on the connected PC, multiple interrogator units can be connected & logged simultaneously.\n1.4 Can a PhotonFirst FBG interrogator function as a standalone data logger?\nPhotonFirst provides one special interrogator which functions as a standalone data logger. For more information, please look at our X-GTR.\n1.5 What is the maximum sample range of a PhotonFirst FBG interrogator?\nThe standard PhotonFirst GTR has a maximum dynamic range of 65 nm. This allows temperature and strain measurements far beyond the physical limits of optical fibers. The sampling accuracy in ideal conditions is 1 pm ± 0.3 pm.\n1.6 How do I compensate for the thermal effect on the strain measuring FBG?\nGenerally, the temperature is measured using a secondary FBG, from which the data from which is used to compensate for the strain sensor readout.\n1.7 Can you put different sensor types on the same fiber?\nYes, PhotonFirst interrogators can read and analyze different FBG sensors simultaneously.\n1.8 What fiber type is used in PhotonFirst systems?\nThe PhotonFirst systems normally use Single Mode fibers. The system is compatible with different types of Single-Mode fibers including doped and/or core sizes.\n1.9 What are FBG Sensors and how does Fiber Optic Sensing work?\nFiber Bragg Grating sensors are inscribed into optical fibers to alter light of a certain wavelength. These alterations are reflected into the interrogator, allowing extremely small variations in the shape of the FBG to be measured with high accuracy and frequency. When these variations attribute to a change in temperature, strain, pressure, etc., a fiber optic sensor can be defined.\n1.10 How reliable are FBG sensors?\nFBG sensors are suitable for use in extreme environments, a variety of coatings are available for different situations. Fiber sensors have no metallic parts and are insensitive to electromagnetic fields. Therefore, FBG sensors can also be robust to ionizing radiation. Under average circumstances, our fibers have an average lifespan of 25 years and thus are highly reliable.\n1.11 What is the maximum number of sensors per channel and what are the corresponding wavelengths?\nThe basic interrogator has one channel where one single-mode fiber array with a maximum of 8 FBG sensors can be installed. The PhotonFirst switched interrogators are equipped with 8 optical channels that are read sequentially with an optical switch allowing for 64 FBG’s. PhotonFirst can further multiply this by using a technique called multiplexing which involves multiple light sources in the interrogator up to a limit of about 4000 FBG’s per interrogator.\n2 Sales & Support\n2.1 Does PhotonFirst offer a fiber/sensor installation protocol?\nThe fiber/sensor installation protocol can be found in the PhotonFirst user manual, as well as the cleaning protocol. Our engineers will also provide custom advice & training for your unique application system.\n2.2 What is the warranty period for PhotonFirst interrogators?\nAs described in our terms & conditions, the warranty period for our interrogators is 12 months when the product is handled in the right way. Our team is always available to help you care for your system.\n2.3 What are the delivery times of the systems?\nThe delivery times of your system will take up to two weeks after we received the order.\n2.4 Does PhotonFirst offer after sales support?\nThe PhotonFirst engineering team is dedicated to helping you with the complete installation process. After installing your customized measurement system, we provide you with training for system operation, for extremely accurate measurements.\n3.1 What are the data protocols and data communication options offered by the systems?\nOur standard GTR and SGTR use USB for data transfer. The XGTR can TCP/UDP in a PhotonFirst protocol as described in the user manual or an iNet-X placed packet format.\nOur customers can choose to read out the raw data from the USB connection or use the GOS for automatic analysis. We are also able to customize this part of the system on request as all software is developed in-house, more info can be found in the manual.\n3.2 What is the format of the log file produced by PhotonFirst? Does PhotonFirst provide an open API?\nThe format of the log file standard is .csv UTF-8. Part of the API is open for customers' data processing systems.\n3.3 Is there an option for data synchronization? Is there an option to convert a timestamp?\nSome of the PhotonFirst interrogators have a data synchronization function. Timestamp features are described in the manual and can be freely edited.\n3.4 Is data averaging done on the instrument itself?\nData averaging is not done on a standard interrogator, but our product allows onboard data processing.\n3.5 What is the data rate per minute at maximum sample speed?\nThe maximum data rate with GTR protocol is: 6.6 Mbit/sec.\n3.6 Is there an option for real-time data streaming (live measurement data) with FBG sensors?\nOur sensors are highly suitable for real-time measurements and data streaming because of the high sampling frequency.\n3.7 What software is supplied with an FBG interrogator?\nPhotonFirst interrogators are supplied with dedicated Gator Operating Software (GOS), which allows control, analysis, real-time monitoring, and data logging of all sensor arrays.","domain":"optical_engineering"}
{"url":"https://www.flymonkeys.co.uk/lidar-photogrammetry","date":"2024-04-17T01:41:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817128.7/warc/CC-MAIN-20240417013540-20240417043540-00412.warc.gz","language_score":0.8688896298408508,"token_count":549,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__191417532","lang":"en","text":"3D LiDAR Survey & Photogrammetry\nFly Monkeys Limited will soon be offering a 3D laser land survey service, utilising heavy lift UAVs fitted with high precision survey and laser systems.\nFly Monkeys will be utilising a fully integrated positioning and laser scanning technology for unmanned airborne laser scanning. The LiDAR system simply bolts on to the bottom of a heavy lift capable UAV. Our unmanned aircrafts are designed specifically for this payload. The S120 system operates a phased based laser scanner which is capable of up to 1million point per second, 120m range with a laser accuracy of 2mm and a repeatable high precision positioning accuracy which GPS and GLONASS can attain.\nThe system has a built in embedded computer, IMU, GPS, GLONASS, and networking capabilities so that you can operate and initiate the system via WIFI. Static and airborne initialisation of the system takes under 5 minutes before scanning commences. The scanner can obtain 310 degrees field of view and can be operated up to 400ft to obtain the data.\nUtilising the Inspire 1 Pro UAV, fitted with Xenmuse X5 micro four thirds camera, we are able to offer a low cost, high resolution photogrammetry option.\nMeasuring stockpile or extraction volumes for earthworks\nCreating NDVI maps from multi-spectral sensors for precision agriculture\nGenerating contour lines and manage environmental changes of natural resources\nProducing measurable documentation for construction, cultural heritage, or archaeology sites\nPlease contact us for further details or to request a meeting to discuss your individual requirements.\nLiDAR image of a railway yard\nLiDAR image of a quarry\nOur heavy lift UAVs are ideal for LiDAR survey, photogrammetry, inspection and aerial photography/videography projects.\nThe main benefits of using them are:\nMuch longer than average flight times, increasing efficiency and cost effectiveness\nCapable of carrying a full LiDAR system, complete with GPNS, INS etc\nCapable of flying with both video/still camera and thermal imager simultaneously, saving extra flights during inspection tasks\nAble to fly in rain, snow and winds up to 25 Kts\nOur compact UAVs are ideal for:\nWorking alongside a heavy lift UAV, inspecting more confined areas\nVisual surveys/inspections on a smaller budget","domain":"optical_engineering"}
{"url":"https://free-the-tree.com/indoor-growing/leds-vs-mh-hps/","date":"2023-09-26T22:04:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510225.44/warc/CC-MAIN-20230926211344-20230927001344-00730.warc.gz","language_score":0.9299711585044861,"token_count":435,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__292756335","lang":"en","text":"Grow light systems – Overview\nThere are basically 2 categories of light systems that are available in order to get your Cannabis plants, the MH/HPS combo and LED systems.\nBefore going further it’s important to define each so everything is clear\nMetal Halide and High Pressure Sodium Lighting System\nMetal Halide and High Pressure Sodium and 2 types of light bulbs that provide the full light spectrum needed for a healthy plant.\nWhile the MH bulb provides a large spectrum, the HPS bulb provides much warmer colors, let’s look at each in detail\nMetal Halide (MH)\nAs you can see on the graph on the right hand side, the MH light bulb provides a full light spectrum with a peak in yellow wavelengths.\nAlthough it can be used through the lifecycle of Cannabis generally it is only used during the vegetative stage since that is when the plant mainly needs the blue light spectrum for growth.\nHigh Pressure Sodium (HPS)\nHPS light bulbs focuses on a much “warmer” light spectrum than it’s MH counter-part.\nThere’s very little short (violet/blue) wavelengths, with a concentration from the hot greens to the cooler reds.\nThese wavelengths are well adapted for your babies once they’ve entered the flowering stage as they replicate well a hot summer sun.\nGrowers generally operate the change between the MH bulb and the HPS bulb during the stretch, once the plant has stopped vegetative growth and developed multiple bud sites.\nLight-Emitting Diode (LED) Lighting System\nLED systems may vary depending the type of diodes on your system. Generally these systems provide a large light spectrum, similar to the MH bulb, as you can see on the image aside.\nAs much as we could tell LED systems do seem to render less flowers in comparison to a MH/HPS combo. Is it linked to the light spectrum though, hard for us to say for sure..\nEdit: Newer generation LED systems have a high performance spectrum which can definitely compete with an MH/HPS lighting system","domain":"optical_engineering"}
{"url":"http://wirl.info/chip-integrated-ultrafast-graphene-photodetector-with-high-responsivity-73/","date":"2019-03-22T14:21:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202671.79/warc/CC-MAIN-20190322135230-20190322161230-00445.warc.gz","language_score":0.7870372533798218,"token_count":674,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__157789229","lang":"en","text":"A chip-integrated graphene photodetector with a high responsivity of over A W−1, high speed and broad spectral bandwidth is realized through enhanced. Here, we demonstrate a waveguide-integrated graphene photodetector that simultaneously exhibits high responsivity, high speed and broad spectral bandwidth. Englund, “Chip-integrated ultrafast graphene photodetector with high responsivity” Nature Photonics () doi/nphoton\n|Published (Last):||5 December 2006|\n|PDF File Size:||11.39 Mb|\n|ePub File Size:||8.13 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nPhotodetetor This Paper Figures, tables, and topics from this paper. Graphene electro-optic modulator with 30 GHz bandwidth. Alexander Urich 4 Estimated H-index: Skip to search form Skip to main content.\nAre you looking for Photoexcitation cascade and multiple hot carrier generation in graphene.\nThis paper has citations. Other Papers By First Author.\nThomas Mueller 14 Estimated H-index: Electron — electron interactions in graphene: However, the weak optical absorption of graphene2,3 limits its photoresponsivity. Strong plasmonic enhancement of photovoltage in graphene. Showing of extracted citations.\nChip-integrated ultrafast graphene photodetector with high responsivity\nUltrasensitive photodetectors based on monolayer MoS2 nature nanotechnology [IF: Strong enhancement of light-matter interaction in graphene coupled to a photonic crystal nanocavity. Chip-integrated ultrafast graphene photodetector with high responsivity. Graphen of 31 references. Download PDF Cite this paper.\nCitations Publications citing this paper. Song 10 Estimated H-index: Quantum Optics in Diamond Nanophotonic Chips.\nIntegrated silicon chpi for lab-on-chip sensor platforms. Echtermeyer 12 Estimated H-index: Kravets 18 Estimated H-index: Graphene-controlled fiber Bragg grating and enabled optical bistability optics letters [IF: Xuetao Gan 16 Estimated H-index: Citation Statistics Citations 0 20 40 60 Graphene Search for additional papers on this topic.\nBIOEE | Chip-integrated ultrafast graphene photodetector with high responsivity\nJiaqi Wang 5 Estimated H-index: Semantic Scholar estimates that this publication has citations based on the available data. Surface Plasmon Polariton Graphene Photodetectors.\nRole of contacts in graphene transistors: Sorger Applied optics Spectroscopic ellipsometry of graphene and an exciton-shifted van Hove peak in absorption. Impact of higher-order coherences on the carrier dynamics in Landau-quantized graphene. A chip-integrated graphene photodetector with a high responsivity of over 0.\nIntrinsic Response Time of Graphene Photodetectors. BardinJun Yan Nano letters Krishnamoorthy Optics express Graphene photodetectors for high-speed optical communications nature photonics [IF: Xuetao GanRen-Jye Shiue.","domain":"optical_engineering"}
{"url":"https://entegila.wordpress.com/2016/04/25/how-to-operate-atomic-force-microscope-afm/","date":"2018-05-24T17:35:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866733.77/warc/CC-MAIN-20180524170605-20180524190605-00577.warc.gz","language_score":0.8231295347213745,"token_count":566,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__84396650","lang":"en","text":"- Turn On the NanoScope Controller by push the bottom in the behind side.\n- Place Optical Head on Scanner\n- Raise all three coarse-adjust screws on the scanner so that there is enough clearance between the tip and sample when the optical head is placed on the scanner. Still checking that the tip doesn’t touch the sample. Attach the springs to the optical head.\n- Plug in the connector from the optical head to the base.\n- Bring the tip close to the sample keeping the head level by lowering all three coarse adjust screws.\n- Align Laser and Tip-Sample Approach\n- Focus on the side-view of the cantilever with the magnifier. Try searching for the red light of the laser and focus on that.\n- Use the “paper method” (block laser beam with paper) to fine position the laser spot on the cantilever. Use the two screws at the base of the optical head (front and left) to position the cantilever over the area of interest on the sample.\n- Move laser until it is at the front edge of the cantilever substrate. Move laser just off the front edge and move laterally along the edge looking for the reflection of the laser spot from the cantilever onto the paper. Center the laser on the cantilever at its end.\n- Open the software “Nanoscope Control” -> has two windows (Control and Image Windows)\n- In the Control windows\n- “Other Controls” panel -> set Microscope mode to tapping or contact mode\n- “Feedback Controls” panel\n-> Integral gain/Proportional gain (tapping mode default= 0.3/0.8, contact mode default= 1/3)\n-> Amplitude setpoint à taping mode = smaller apply more force, contact mode = bigger apply more force (default for NP is 2V)\n- “Scan Controls” panel -> depend on requirement but the default is; Scan size=1, x offset=0µm, Y offset= 0µm, Scan rate=1Hz, Samples/line = 512, Lines=25\n- Engage or withdraw tip by push the tip icon and capture image by push the camera icon.\n- In the Image Windows\n- Open the saved image in the folder by push the image icon. Use Screenshot/print screen to copy the image data.\n– Read the manuals!\n– Follow good “rules of engagement”!\n– Never move the head while imaging!\n– Never leave your controller ON while the computer is turned OFF!\n– Do not unplug cables to/from energized hardware. Turn OFF first!","domain":"optical_engineering"}
{"url":"https://www.iot-records.com/all-there-is-to-know-about-7d-hologram-technology/","date":"2023-09-24T06:29:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506623.27/warc/CC-MAIN-20230924055210-20230924085210-00353.warc.gz","language_score":0.9231483936309814,"token_count":1889,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__222969990","lang":"en","text":"All There Is To Know About 7D Hologram Technology\nWhat do you mean by Hologram?\nA Hologram is a physical device that diffracts light to form an image pattern.\nA holographic image can be seen by projecting laser beam through a hologram into a holographic print and projecting it on the screen.\nNot a hologram:\nJohn Henry Pepper demonstrated the technique for the first time in 1860s. The Pepper ghost technique uses a partially reflective surface to mix with image with the scene beyond. He used it to overlay visual elements onto a physical set (ghost).\nOther methods of projecting images are often called holographic because they have optical presence and spatial quality and iridescent colours.\nAugmented reality systems like the HoloLens often use Holographic optical elements to make a video projection. The virtual objects are a kind of ‘virtual hologram’.\nHow does holography work?\nThe basic principle of holograms is interference.\nInterference is the superposition of light waveforms such that the net displacement is either added or cancelled. A hologram captures the interference pattern of two beams of coherent light that is they have constant phase difference (laser lights). One beam is directly shone on the recording area and this beam acts as the reference beam to the other light scattered from illumination scene. Hence, it is also called as a window with memory.\nBy contrast, a photograph captures a single small area and the photographic image being created by focusing this light onto a digital sensor. Common materials used in a holographic film are silver halide emulsions, dichromate gelatins, and photopolymers each having their own feature and require different kind of processing. In cases of security identifications such as passports, holograms are stamped into a foil as they cannot be copied without using master hologram.\nHologram is the recorded interference pattern of the superimposed waveforms of light. Light is an electromagnetic waveform. Hence, to get a steady recording of the pattern, we use monochromatic and coherent lights (laser beams are usually monochromatic in nature). This is stored in the hologram’s photosensitive emulsion which is chemically processed, and we can observe a fringed interference pattern due to alternate constructive and destructive displacement resultants of the interference.\nThis structure does not look like the image that is coded within it. Both the coded pattern and the image can be called as a hologram.\nSo, to define holography, it is a way of encoding recording in an interference pattern.\nThe most surprising thing about hologram is that it creates a virtual form of space as if light holds its own space.\nLooking at holograms:\nNow we know how to encode an image into its interference pattern, let us see how to retrieve the image back from the interference pattern.\nHolography records the scene through an area of perspective. Hence, the image changes as you move around. The viewing window can be broken up to record different perspectives. This process is called as spatial multiplexing and can be used in animation industry.\nThe development of holography:\nFrom using single beam diffraction to double diffraction, holography improved a lot.\nWorking with colour became possible as the hologram can identify diffraction of different wavelengths. (Different colours of light have different wavelength. The longer wavelengths are coloured red while the shorter wavelengths are blue coloured)\nPulse laser holography:\nA pulse laser produces ultra-short flash of light, thus freezing the image and getting holograms of live objects.\nThis uses double layer pulse and used to detect even small changes. This can be used to see breathing movement and blood under the skin.\nHolographic optical elements:\nHolograms also have application in lighting design. Spatially dynamic holograms are prepared using multiple holographic optical elements to shape light into dynamic and abstract images. These kinds of pieces jolt our perception of the world.\nStencilling and multiplexing technology:\nBy transferring a multiplexed master, a final print can be obtained where virtual windows is fragmented to allow spatial animation.\nDot matrix holography:\nIt is a technique of building up an image using diffractive pixels.\nComputer generated holography:\nIn this, the fringe pattern of each pixel is calculated and recorded.\n7Ds stand for seven dimensions.\nOur world is known to exist in a three dimensional space with time often considered as the fourth dimensions. So what does 7D technology mean?\nThe 7D hologram is captured from a different number of positions that surround the subject of hologram. Each position captures a variety of seeing directions in the two dimensional space. Two additional parameters include image intensity and time. If you add up all, you get seven parameters. Hence the name, 7D Hologram technology.\nRELATED: What Is The Internet Of Things (IoT)\nSo, a 7D hologram is the technology of capturing a high quality of hologram with 7 parameters. If we differentiate between 3D and 7D hologram technology, then the main difference is that 7D hologram is captured from a large number of positions that surrounds a subject or whole scenario.\nTo put it simply, a 7D hologram is like taking a number of photographs surrounding our object. The position of each object is described in 3D and the angle with which the photograph is being taken is described in 2D. Each camera records intensity and time. If we record stereopsis and depth perception parallel the resulting image move as viewer move.\nThe final parameters are: 3D+2D+time and intensity properties=7D\nHence, now we have a clearer idea of what 7D signifies in a 7D hologram. A 7D hologram technology allows us to view world in a unique way.\nThe five dimensions that determine position and angle are called as 5D Plenoptic function. Holograms based on 5D functions are very large.\nNow let us look into the technologies used to make 7D holograms\n1. Augmented reality:\nIt is a method of recording a light field with the seven parameters (mentioned above) that describe a 5D function along with image intensity and time.\nSadly, this technology is yet to be realised and is in experimental state for now.\nExample: Playing chess against a computer using a real chess board with players that are holographic.\nAugmented reality is the live integration of reality with information, virtual objects and user interfaces.\nResponsive augmented reality:\nIt is not just the augmented reality but the kind that will respond to interactions and simulate the behaviour of real world.\n2. Digital scent:\nHave you ever imagined watching a movie where every smell from the movies is portrayed to real time audience?\nThat’s the basic concept behind Digital scent.\nThe audience need not wear a digital nose and the smell should be transmitted without mechanical interfering.\n- In the homes and offices: With the incorporation of “Internet of things”, you could project any kind of simulations or images. This kind of tech could get so real with the advancement of machine learning and artificial intelligence that you could interact with people’s holograms as if they are physically present.\n- In gaming (advanced VR games)\nRecently, a team of Japanese scientists made more realistic image pattern that can be touched without any kind of harm like the feeling of burning. It is being predicted that this will be soon affordable as it is being used in Dubai malls and cinemas. Now you can watch movies in 7D.\nAPPLICATIONS IN FUTURE\nImagine a world in 7D space and its effect on our living standards. Imagine that you are present at two or more places at the same time. You can deliver a lecture to multiple classrooms; a student can attend a lecture from home but being virtually present in the classroom. Bringing the world closer has become a common purpose, globalisation and internet has brought us a lot closer. Imagine being in another country without having to fly overseas.\nYou can imagine its application in the broadcasting industry.\nBy simulating you can identify how our brain collects and recognises memory. So, your mind is itself a holographic projection out of space and time.\nA hologram is an endless and vast technology which can affect every aspect of our lives. As all emerging, powerful technologies can be used for the benefits of humanity, they can be also used for destruction.\nHolograms could have military applications which can lead to grim consequences.\nWhen the X-ray technology came, it changed the medical world immensely, then we moved on to enhancement of entertainment. Today we can watch movies in 3D. Hologram technology has been improving and changing our lives for centuries now and it is up to us how we implement it and use it.\nOne of the pioneers of Science, Madame Marie Curie said-\n“I am one of those who think like Nobel, that humanity will draw more good than evil from new discoveries.”","domain":"optical_engineering"}
{"url":"https://www.redlinesecurity.co.uk/counterfeit-detector-uv-lamp-with-magnifier/","date":"2022-01-19T04:11:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301263.50/warc/CC-MAIN-20220119033421-20220119063421-00262.warc.gz","language_score":0.8919057250022888,"token_count":146,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__84156780","lang":"en","text":"A mains operated, UV detection lamp that is designed to identify fraudulent currency and documentation, with a built in magnifier for enhanced detection.\nEquipped with a 9W UV tube, the model is used by UK police forces and anti-fraud teams to detect false bank notes, passports, ID cards and much more.\nEasy to set up and use. Professional results in an instant.\n- Counterfeit detection lamp\n- UV bulb detects markings and watermarks\n- Built-in magnifier for enhanced detection\n- Suitable for all currency, passports, IDs etc.\n- Compatible with new UK polymer notes\n- Mains operated, 220V, 9W UV tube","domain":"optical_engineering"}
{"url":"https://opticalproductsupplier.wordpress.com/2021/01/24/optical-products-some-useful-information/","date":"2021-02-26T21:12:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178357984.22/warc/CC-MAIN-20210226205107-20210226235107-00194.warc.gz","language_score":0.9565492868423462,"token_count":692,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__166356169","lang":"en","text":"Optical Products is all optical products that are created using non-laser components. An object is an optical product that is created or sold for a certain purpose by using non-laser parts. Some of the different types of optical products are prisms, eyeglass holders, mirrors and filters. In order to understand this further, you will need to know a little bit about how lasers work. Lasers use light waves to create energy in the form of particles which excite electrons in objects.\nThe parts of glasses which are used to design the lenses and frames are called optical glass. These glasses must have various levels of thickness so that they can reflect different types of light. There are many different ways to design glasses. The main parts of glasses that you will find in optical glass are the lens, objective, tube and the reflector.\nLenses are the actual element of the eyeglass lenses and the one that are actually seen by our eyes. There are different types of eyeglass lenses such as Trivex, polycarbonate and clear lenses. One major difference between these types of glasses is the thickness of the lens – some are thicker than others. To get enlightened about optics products, view more here.\nOne of the most common and popular optical products are contact lenses. Contact lenses are basically when we wear eye wear in order to change the shape of our eyes. The other devices that we can find in optical eyewear products are loupe, glasses and prisms. All of these devices are used to improve one’s vision.\nThe next topic is Data Design. Data design refers to the way in which an object is represented digitally and how it is used within the physical system. This is one of the most important topics that must be included in any optical products. If there are problems with the data design, then the Optical Products will not function as they should.\nThere are various types of eyewear based on the user’s requirement. There are sports eyeglasses, sunglasses, contact lenses and many other types. All these different types of eyewear are developed based on the data design which is provided by the customer. So if you are looking for contact lenses, designer glasses or sunglasses, then make sure that you read more about the data design of the product.\nOptical Designers has to ensure that the optical products which they make are user friendly. In other words the eyeglasses should be able to suit the needs and requirements of every individual. There are many glasses which can suit different user groups, but only few are able to suit all the different user groups. So for this purpose, designers of optical products are also developing special contact lenses in order to cater to the various needs of the users.\nOne of the latest developments in the field of optical technology is called Wavefront Optics. It is a new generation technology that has come up to meet the unique requirement of users. This new technology helps us understand the ophthalmic processes much better. So if you want to know about the Wavefront Optics, then visit online stores and find details about this amazing technology. Besides glasses, contact lenses and prisms are some of the optical products that are developed using Wavefront Optics. You may need to check out this link: https://www.britannica.com/science/optics to get more info on the topic.","domain":"optical_engineering"}
{"url":"https://www.netscope.gr/news?row=264","date":"2024-04-17T09:01:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817146.37/warc/CC-MAIN-20240417075330-20240417105330-00305.warc.gz","language_score":0.8626635670661926,"token_count":356,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__8815369","lang":"en","text":"Teledyne FLIR is excited to introduce the Si124 Industrial Acoustic Imaging Camera, a valuable addition to our extensive line of decision-support solutions. This lightweight, one-handed solution can help you locate pressurized leaks in compressed air systems or detect partial discharge from high-voltage electrical systems up to 10 times faster than with traditional methods.\nThe FLIR Si124 industrial acoustic imaging camera senses, displays and records sound waves producing a precise acoustic image. The acoustic image is overlaid, in real time, onto a digital camera image all with an easy-to-use, ergonomic, one-handed camera solution weighing a little more than 2 pounds (980 grams).\nThe blended visual and sound image can be viewed live on screen to help users’ pinpoint issues from the sound source, helping staff identify issues up to 10 times faster than traditional inspection methods for common mechanical, electrical, vacuum and compressor systems.\nBuilt with 124 microphones and a high definition visible-light camera, the battery-powered Si124 can detect potential issues up to 100 meters away, even in loud industrial environments, for up to seven hours of continuous use.\nThe FLIR Si-Series Plugin for FLIR Thermal Studio allows you to easily import acoustic images from FLIR Si124, Si124-LD, and Si124-PD cameras to FLIR Thermal Studio analysis and reporting software. Edit and analyze images and create advanced reports. With the plugin you have support for automatic fault classification, severity indication and recommended action for utility inspections, and estimation of leak volume and cost savings for air leaks. You can combine the acoustic images with thermal imaging in the same report.\nLearn more about FLIR'S new Si124\nFind the datasheet of FLIR'S Si124","domain":"optical_engineering"}
{"url":"http://letmeget.com/blog/leica-v-lux-3-hands-review-superzoom-digital-camera","date":"2013-05-23T12:22:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703306113/warc/CC-MAIN-20130516112146-00026-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8843191266059875,"token_count":1381,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__24537166","lang":"en","text":"There is a spanking new superzoom digital camera from the house of Leica Camera AG, called Leica V-Lux 3, which will be accessible direct from Leica dealers from starting of January 2012. This digital camera is packed with wide range of features and is a universal solution for lensmen who are seeking for an all-in-one digital camera. It is really versatile device which makes it wonderful for all the photographic situations such as sport, landscapes, travel, portraits, architecture, wildlife, etc. It features a 12.1-megapixel CMOS image sensor, 24x optical zoom and a 1080p HD video recording mode. Leica is marketing the V-Lux 3 as a substitute to entry-level DSLR cameras.\n- 12-megapixel 1/2.33-inch CMOS sensor\n- 24x zoom lens\n- 12 frames-per-second burst at full resolution\n- 3-inch 460k-dot tilt-swivel LCD display\n- Leica DC Vario-Elmarit 4.5-108mm Lens\n- Full 1080p AVCHD video at 60fps\n- Auto, 100-3200 ISO Range\n- Built-In Flash\n- Photoshop Elements/Premiere Elements\n- SD/SDHC/SDXC Memory Card Slot\nFeatures & Specifications\nThe Leica V-Lux 3 is a blend of outstanding performance and compact size. It is one of the best consecutive-shooting cameras in its fragment with a burst-shooting capability of 12 fps at full resolution and 60 fps at 3.5 megapixels. It is equipped with newly-developed 12.1 megapixel CMOS image sensor, which assures remarkably high image quality for all the applications.\nLeica V-Lux 3 is said to be a re-branded form of Panasonic Lumix DMC-FZ150. Both have the identical 24x-zoom Leica DC Vario-Elmarit 4.5-108mm f/2.8-5.2 (25-600mm, 35mm equivalent) lens, plus the ability to shoot 1080p60 video in AVCHD (advanced video coding high-definition) format. Some swift features of the V-Lux 3 consist of an articulating 3-inch LCD, quick burst shooting, and an incorporated stereo microphone. Most cameras like the Lumix DMC-FZ150 come with just basic image download and editing software from the manufacturer while Leica has determined to partner with Adobe and comprise a more comprehensive software package. Catch hold of the extra advantage of Photoshop Elements for photo manipulation, and Premiere Elements for video editing with the V-Lux 3. The Panasonic Lumix DMC-FZ150 is available at $499, whereas the Leica V-Lux 3 priced at $949 (Amazon and Popflash). The Leica V-Lux 3 comes with a 2-year warranty.\nLeica V-Lux 3 Review:\nThe design of the Leica V-Lux 3 is portrayed by a compact form and quite easy handling. The body of the camera feels strong and fashionable. The integrated hand-grip keeps the camera steady throughout shoots and its light weight enables user to capture photographs with one hand. All controls are noticeably laid out and straightforward to use. For example, video recording can be started rapidly by just pressing a button, located on the top deck of the camera. Certain design features remind you that it is certainly a Leica camera like the metal stamped logo and tiny metal accents on a few of the buttons.\nA consistent aid to photographers in the specific composition and assessment of images, the 3\" LCD display with 460,000 pixel resolution delivers a really bright and clear view. The monitor screen of the V-Lux 3 can be turned and twisted in any direction, enabling user to take images and videos yet from the very most unusual angles. Photographers using the V-Lux 3 always remain in full control when shooting still or videos, either close to ground or from above their head.\nYour artistic freedom is boundless with a Leica V-Lux 3. Its 24x super-telephoto zoom makes capturing wide landscapes just as simple as bringing still the smallest details into the foreground. The image quality from the 12.1-megapixel sensor is fantastic, with the autofocus performing extremely well under very sturdy conditions. The V-Lux 3 sets wholly new standards in its class - for still pictures and video alike with its high contrast range and natural, flawlessly saturated colors.\nExtreme Range of Focal Lengths\nThis camera is capable of observing things that most compacts can just imagine, boasting a colossal 24x super-telephoto lens. The Leica DC Vario-Elmarit 1:2.8-5.2/4.5-108mm ASPH lens has a vast range of focal lengths casing the spectrum from a 25mm wide angle to a 600mm super-telephoto lens. Its 25mm wide angle setting allows photographers to powerfully emphasis perspectives, whereas its 600mm telephoto setting captures pin-sharp details of things also at very long distances.\nVideo in Full-HD Quality\nThe video capability of the device permits the recording of moving pictures in full-HD quality. The camera takes full-HD video in AVCHD format with 1920 × 1080 pixels and 60 full frames per second. This 1080/60p video format assures the great rendition of fast movement in superb detail as well as is perfect for conversion into different resolutions and refresh rates. For example - conversion to MP4 format can be fast and expediently transferred for use on mobile devices and the web without any additional conversion. An incorporated stereo microphone with a wind-noise filter guarantees wonderful audio quality. A deletion alternative for individual sequences means that editing can start in the camera without the need to download the data to a software-based editing suite.\n- Lens Hood\n- Lens Cap\n- Carrying Strap\n- A/V Cable\n- USB Cable\n- BC-DC9 Battery Charger\n- V-Lux 2 BP-DC 9 U Li-Ion Battery\n- 2-Year Limited Warranty\n- Instruction CD\n- Adobe Elements & Premiere Elements Software Via Free Download\nYou Might Also Like :\n- Leica D-Lux 6: Specs, Release date and price of high-end compact camera\n- Panasonic Lumix DMC FS25 Digital Camera Review\n- GE Digital Camera A1250 - General Electric A1250 Digital Camera Review\n- Olympus VH-410: Specs of touchscreen Compact Digital Camera\n- Casio Exilim EX-S5PE 10MP Digital Camera Price, Review & Specifications\n- Argus Bean Sprout Carabiner Camera Price & review","domain":"optical_engineering"}
{"url":"https://www.vonmedical.com/operating-light-7.html","date":"2023-12-10T11:45:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00166.warc.gz","language_score":0.7671178579330444,"token_count":481,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__185838821","lang":"en","text":"FL500D LED shadowless operating light\nFL500D LED shadowless operating light detail parameters：\n1, Diameter of dome: 500mm (18 pieces led bulbs)\n3, Color temperature adjustment: 3000-5000K\n4, Color indication index: ≥95Ra\n5, Spot diameter: 180-300mm\n6, Illumination-adjustment range: 10-100%\n7, Power supply: 220/110V\n8, Frequency: 50/60Hz\n9, Temperature rise at surgeon’s head: ≤1℃\n10, Average service Life: ≥ 50,000hrs\n11, power consumption:48 W\n12, power supply voltage: 0 ~ 220V/50HZ;\n13, the lamp surface glass lamp panel adopts Germany PC (soft plastic plates), anti glare, anti impact, high security\nWelcome to buy the best quality single dome led operation theatre lights hospital surgical light for sale from us. As one of the professional manufacturers and suppliers of various medical equipment, we have cooperated with many companies and owned good reputation. Come and enjoy our unmatched prices and services.\nFL500D LED shadowless operating light technique data：\n|Color temperature adjusment||4500±500K|\n|Color indication index||97Ra|\n|Ultravilet light irradiance within 40mm wave length||0.002w/m2|\n|Light-adjusting mode||Ten grade dimmer system|\n|Temperature rise at surgeon，s head||≦1℃|\n|Average service life||60,000hrs|\nFL500D LED shadowless operating light Advantage:\n● Adoped advanced patent technology,chaieve depth of illuminationg,coloe temperature and color indicationg index of harmony and unity.\n● Germany OSRAMLED bulb own high performance,with high effciency layout,the effect of energy saving is superior to other international brand in the same illuminance.\n● Adopted two alike color temperature LED bulb,in order to prevent surgical from dizzy.ensure the surgeon clearly and accurately to identiy the color of vascular tissue and nerve tract.\n● Adoped single 1w LED bulb,lowest heat arising,effcient heat dissipation,improved service life.","domain":"optical_engineering"}
{"url":"https://www.lensc.org/5-tips-for-new-telescope-owners/","date":"2021-09-27T21:26:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780058552.54/warc/CC-MAIN-20210927211955-20210928001955-00649.warc.gz","language_score":0.9123102426528931,"token_count":687,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__243597417","lang":"en","text":"5 tips for new telescope owners\nFebruary 18, 2021\nPosted by Lake Erie Nature and Science Center\nBill Reed, Planetarium Specialist and NASA Solar System Ambassador\nDid you buy a telescope and cannot figure out how to use it? Seeing nothing but fuzz through the eyepiece? Below are five tips for new telescope owners.\nKnow your equipment\nUnderstanding the specifics of your telescope will enable you to better gauge its capabilities and limitations. Most telescopes provide great views of the moon, but objects further into the solar system require more preparation.\nTwo important telescope specifics are aperture and focal length. Aperture is the diameter of the main lens or mirror. Focal length is the distance, from that lens or mirror, in which it focuses light.\nYour aperture determines how much light-gathering ability your telescope holds and which astronomical objects it is suited to view. Knowing your focal length will also help you calculate the magnifying power of your telescope. The focal length can be found on the side of the telescope tube or in the owner’s manual.\nIn astronomy, more magnification is not always better. How much is too much? My rule of thumb is 35x per inch of aperture. For example, if you have a 60mm (2.36-inch) telescope, your image may break down over 80x magnification (2.36 x 35 = 82.6).\nA simple formula for calculating magnification is the focal length of the telescope (in millimeters) divided by the focal length of the eyepiece. For example: If your telescope has a 900mm focal length and a 25mm eyepiece, the magnification is 36x. If you use a 10mm eyepiece, increase the magnification to 90x.\nWhen using your telescope, start with the lowest-power eyepiece to find an object more easily.\nUsing your viewfinder\nA viewfinder is the small attachment on the side of the optical tube that resembles a miniature telescope. Newer telescopes are sold with an electronic reflex finder, which is a little window that superimposes a red dot or crosshair on the sky.\nMake sure this device contains good batteries and is aligned with the telescope tube. Proper use of a viewfinder will greatly reduce frustration with your telescope.\nSet realistic expectations\nThe beautiful images you see online and in magazines are products of astrophotography, which requires expensive telescopes and cameras with long photographic exposures. You will not see these images visually.\nWith the moon and planets, it is possible to push the magnification 100x or higher, because they are bright objects within our solar system. Deep sky objects, such as galaxies and nebulae, are relatively large and dim and require larger apertures, low magnification and dark skies.\nNo matter how large your telescope or how high your magnification, a star in the night sky is going to look like just the star you can see with your naked eye because it is so far away.\nMake a plan\nPlan your next observing session by knowing what is going to be visible in the sky, and try to observe in a location that has minimal stray light.\nAvoid using your mobile devices while observing, as they limit how well your eyes acclimate to darkness and what you see through your telescope. Instead, use a printed sky map and a red flashlight (red light does not affect your night vision).","domain":"optical_engineering"}
{"url":"https://www.droneuniversities.com/drones/an-affordable-light-weight-thermal-imaging-camera-for-your-drone/","date":"2020-01-24T10:12:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250619323.41/warc/CC-MAIN-20200124100832-20200124125832-00486.warc.gz","language_score":0.8867855072021484,"token_count":459,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__10774535","lang":"en","text":"FLIR Corporation, long known for the manufacture of a broad line of electro-optical and thermal imaging systems for everyone from the Military and Law Enforcement, right down to the average smartphone user, has announced VUE. A miniature Drone Friendly version of their popular Quark line of Camera systems, the VUE provides easier integration of thermal sensors for Drones in what I would suggest would be the 450 mm and larger classes of Multi Rotors as well as fixed-wing platforms. A list of features such as multiple lens options, Mini USB connection, 5 Volt DC power in and Analog Video out, make this easy to integrate system a no-brainer for applications requiring a thermal sensor. Add to this FLIR’s reputation for reliability and a price starting at under $1500, and it appears the VUE is poised to dominate the thermal imaging market in the sUAS community.\nHere is a video from AUVSI 2015 featuring the FLIR Vue:\nFLIR VUE @ AUVSI 2015\nDave Lee walks us through the newly announced FLIR VUE, an easy to integrate thermal camera for drones! Learn more at FLIR.com/flirvue\nAccording to FLIR themselves:\nIntroducing FLIR Vue™ – Easy, Affordable Thermal Imaging for Commercial sUAS\nWith FLIR Vue™ you get all the thermal imager you need for sUAS operations without having to pay for functionality you’ll never use.\nPre-configured to give you optimal imagery in a wide variety of conditions, FLIR Vue is light enough that it won’t throw off your center of gravity or impact your flight times. With simple power-in and video-out connections, it’s easy to integrate and get flying on just about any platform.\nBest of all, with MSRPs of only $1,499 for 336 resolution cameras and $2,999 for 640 cameras, FLIR Vue is affordable for today’s commercial sUAS operations.\nFLIR is taking orders now, so if you need thermal imaging for your drone project, check out FLIR. For more information, you can contact FLIR direct by calling (866) 667-7732.","domain":"optical_engineering"}
{"url":"https://hitechextrusions.com/bright-ideas-yield-brighter-lights/","date":"2023-12-04T12:23:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00277.warc.gz","language_score":0.926654040813446,"token_count":319,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__224735713","lang":"en","text":"Summary: Hi-Tech Extrusions, a leading provider of custom-engineered thermoplastic profile and tubing extrusions, helped a large OEM LED Lighting Manufacturer overcome their specific light transmission challenges. Faced with the need for particular light transmittance levels in multiple colors, Hi-Tech Extrusions employed their research expertise in material properties to deliver a custom frosted flame-rated material. This tailored solution met the manufacturer’s specifications and contributed to achieving the desired light transmittance levels effectively.\nIndustry: OEM LED Lighting Manufacturing\nCategory: Material Research and Custom Engineering\nProcesses: Thermoplastic Profile Extrusion, Material property Research, Custom Frosted Flame-Rated Material Design\nThe large OEM LED Lighting Manufacturer was grappling with a complex problem: they needed specific light transmission levels to meet their design and functionality goals, but they were unable to achieve this using conventional materials.\nLeveraging their vast expertise in thermoplastic profile and tubing extrusions, Hi-Tech Extrusions conducted comprehensive research on material properties. The result was a frosted flame-rated material that allowed for the desired level of light transmittance while also being flame-resistant. This innovative material was not only functional but also came in multiple colors, offering both versatility and safety in one package.\nWith the introduction of the frosted flame-rated material, the OEM LED Lighting Manufacturer successfully achieved the specific light transmission levels they were seeking. The material not only met but exceeded their design requirements, leading to improved product performance and, subsequently, enhanced customer satisfaction.","domain":"optical_engineering"}
{"url":"https://www.asmiktech.com/mik-ptu100-turbidity-meter/","date":"2023-09-22T04:59:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506329.15/warc/CC-MAIN-20230922034112-20230922064112-00168.warc.gz","language_score":0.7378659248352051,"token_count":391,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__25516014","lang":"en","text":"MIK-PTU100 Turbidity meter is based on the infrared absorption scattered light method, and the measurement of turbidity is not affected by chromaticity. The turbidity meter according to the use environment, it can be equipped with self-cleaning function to ensure the stability of data and the reliability of performance.\nBased on ISO7027 infrared double scattering light technology will not be affected by chroma for the measurement of turbidity value.\nWith the built-in self-diagnosis function, it can make sure the accurate data be delivered; the installation and calibration is quite simple.\n|Measure range||0.00 ~ 4000NTU|\n|Indication resolution||Less than ± 2% of the measured value,|\n|or ± 0.1 NTU Maximax criterion|\n|Calibration||Sample Calibration, Slope Calibration|\n|Cable length||Standard 10-Meter Cable, Max Length: 100 Meters|\n|High voltage baffle||Aviation Connector, Cable Connector|\n|Main materials||Main Body:SUS316L (Ordinary Version),|\n|Titanium Alloy (Seawater Version)|\n|Upper and Lower Cover: PVC; Cable: PVC|\n|Power Supply||AC220V±10%,5W Max,50Hz/60Hz|\nWaste water treatment\nSewage sedimentation tank","domain":"optical_engineering"}
{"url":"http://www.riccardorotesi.com/pages/nimbo.html","date":"2021-04-22T19:47:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039604430.92/warc/CC-MAIN-20210422191215-20210422221215-00290.warc.gz","language_score":0.9181329607963562,"token_count":161,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__108389093","lang":"en","text":"industrial design / software development\nIllumination is crucial to properly view the reflection.\nA two-way mirror allows an elegant integration of the source of light and the\nreflective surface by the lamp disappearing when turned off.\nBy analysing user’s movements, Nimbo adjusts the intensity of light to enhance the overall experience.\nNimbo understands how the user is experiencing the product by\nanalysing his distance from the surface and his movements with two IR\nsensors. It then uses a camera to extract the user’s silhouette from the surrounding environment.\nNimbo is the Thesis Project that I’ve done for my BSc in Industrial Design.\nBesides designing the mirror, I developed the software that enables the interactivity described above.","domain":"optical_engineering"}
{"url":"https://www.streampros.net/site/?product=6880","date":"2019-10-14T00:40:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986648481.7/warc/CC-MAIN-20191014003258-20191014030258-00386.warc.gz","language_score":0.8791134357452393,"token_count":259,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__216675823","lang":"en","text":"HDTV 1080p and 30x zoom\nAXIS P5635-E Mk II PTZ Dome Network Camera is a cost-effective, high-performance HDTV 1080p camera with 30x optical zoom. It enables high-definition video surveillance of large indoor and outdoor areas and provides great details when zooming in. Focus recall means it’s faster and easier for operators to find focus in a predefined area than with regular autofocus. Suitable applications include city surveillance.\nContinuous 360° pan\nAXIS P5635-E Mk II features a continuous 360° pan capability, with no mechanical stop, for fast camera repositioning and smooth, continuous tracking of an object.\nSuperb video in various lighting conditions\nAXIS P5635-E Mk II has day/night functionality and good low light performance. It supports Axis’ unique Wide Dynamic Range – Forensic Capture (120 dB), which enables details in both very bright and dark areas of a scene to be visible.\nAXIS P5635-E Mk II features Axis’ Zipstream technology, which lowers bandwidth and storage requirements by an average of 50% or more while keeping the resolution, frame rate and forensic details. Zipstream automatically adapts to PTZ camera movements.","domain":"optical_engineering"}
{"url":"https://www.augustineformayor.ca/apple-updates-patents-for-placement-of-truedepth-camera-behind-iphone-display-and-acoustic-dosimetry-for-headset-playback","date":"2023-12-03T08:18:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100489.16/warc/CC-MAIN-20231203062445-20231203092445-00759.warc.gz","language_score":0.8874417543411255,"token_count":1029,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__55883846","lang":"en","text":"Today, the US Patent and Trademark Office published a patent application from Apple that relates to the eventual elimination of the iPhone’s notch by repositioning the TrueDepth camera system behind the iPhone’s display.\nApple describes the iPhone as having a display with a front face and a back face. The display includes multiple pixel areas that emit light from the front surface to display a displayed image and multiple apertures that transmit light from the front surface to the back surface. The iPhone includes a camera located on one side of the back of the display. The camera is configured to take pictures.\niPhone includes a processor coupled to the display and camera. The processor is configured to receive the captured image and to apply a first digital filter to a first portion of the captured image and a second digital filter different from the first digital filter to a second portion of the captured image to provide a through reduce image distortion caused the screen.\nApple’s patent FIG. 2 below illustrates the current iPhone notch design and FIG. 3 shows a future iPhone design with the TrueDepth camera system hidden behind the back of the display images.\nApple’s patent FIG. 4 above illustrates a future operating environment #400 in which the camera system is located behind the display images. Apple notes that “although the #420 camera doesn’t necessarily contact the #410 display, the camera is closer to the back (#418) of the display than it is to the front #417.\nOne of the key aspects of Apple’s invention concerns the recovery optics that sit between the display and the camera. In Apple’s follow-up patent since issuance in April, they have updated their patent claims to protect this key aspect of the invention. Apple listed “recovery optics” 26 times in 20 new patent claims. Listed below are only the first 9 new claims that focus on “restoration optics”.\n- An apparatus comprising: a display having a front surface and a back surface, the display including a plurality of pixel regions that emit light from the front surface of the display to display a displayed image, and a plurality of apertures that transmit light from the front surface to the back; a camera arranged on a side of the back side of the display, the camera configured to capture a captured image; restoration optics disposed between the display and the camera, the restoration optics configured to reduce image distortion caused by the display; and a processor coupled to the display and the camera, the processor configured to apply a digital filter to at least a portion of the captured image to further reduce image distortion caused by the display.\n- Apparatus according to claim 1, wherein the recovery optics enhance spatial frequencies corresponding to valleys in a point spread function of the display.\n- The device of claim 1, wherein the recovery optics reduce spatial peaks in a point spread function of the display.\n- The apparatus of claim 1, wherein the recovery optics include an optical filter.\n- Apparatus according to claim 1, wherein the recovery optics comprise a phase shift mask.\n- Apparatus according to claim 1, wherein the recovery optics comprises at least one of a lens or a bandpass filter.\n- The apparatus of claim 1, wherein the camera includes a lens separate from the recovery optics.\n- The apparatus of claim 1, wherein the camera includes a bandpass filter separate from the recovery optics.\n- The apparatus of claim 1, wherein the processor is further configured to control the restoration optics to change a point spread function of the restoration optics.\nTo review the other 11 patent claims supporting recovery optics see Apple’s patent application number 20220179452.\nPatent 2: AirPods rendition of acoustic dosimetry\nApple notes in its patent background that consumer electronics headsets are becoming more popular with users because they play media like music, podcasts, and movie soundtracks with high fidelity while not disturbing others nearby. While the listening experience with a headset is comfortable and the maximum sound output of a headset is limited according to hearing health safety standards, there is still a need to monitor the sound output of the headset over relatively long periods of time, such as days and weeks, as part of personal Hearing health monitoring aimed at avoiding long-term exposure to loud noises.\nOne aspect of Apple’s invention relates to digital signal processing techniques for monitoring how much sound energy is generated by a headset during playback while worn by a user. Other aspects are also described, including how to monitor the audio that is in the user’s surrounding listening environment.\nApple’s patent FIG. 4 below is a flow chart of an ambient acoustic dosimetry process.\n(Click to enlarge the image)\nApple’s patent FIG. 5 below illustrates an aggregated dosimetry process receiving multiple inputs from different devices.\nIn this important patent update, Apple adds 20 new patent claims to its invention entitled “Headset Playback Acoustic Dosimetry,” which you can see in patent 20220178738 here.","domain":"optical_engineering"}
{"url":"https://www.lsi-services.com/other-innovative-products/ilight-dimming-systems/","date":"2023-02-08T01:18:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500664.85/warc/CC-MAIN-20230207233330-20230208023330-00463.warc.gz","language_score":0.9518945217132568,"token_count":223,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__164888955","lang":"en","text":"iLight is a leading UK based architectural lighting control specialist offering a complete suite of lighting source controllers. With iLights controllers and interfaces, you are able to control many different sources of light such as Fluorescent, LED, Tungsten Halogen and Incandescent lightfrom just one unit. As you would normally need one box for each type of light source, there are clear space savings and cost savings of up to 25% can be made versus traditional light control systems.\nThe control systems are complemented by push and touch-screen interfaces which can be either wall-mounted or be freestanding.\nThe correct lighting is an essential part of any effective design, but ensuring that the lighting setting is done correctly and consistently every day can be an issue. With iLight Controllers, you can easily create architectural or mood lighting as well as task lighting for different environments, scenes or times of day. For example, imagine you have a restaurant/bar/lounge that is open from breakfast until late night. iLight can easily program its units to ensure that you have the correct lighting, consistently.","domain":"optical_engineering"}
{"url":"http://blog.sebastianbularca.com/2012/02/02/a-sun-pillar/","date":"2024-04-21T18:25:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817790.98/warc/CC-MAIN-20240421163736-20240421193736-00485.warc.gz","language_score":0.9774124026298523,"token_count":341,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__140176539","lang":"en","text":"As usual, today we went to work by car. I actually asked myself if I should carry my photo camera at work again, since there was nothing special happening anyway. Like every morning for the last 2 weeks, we were very happy about the beautiful sunrise that was about to become visible from behind the clouds. As we were watching the sunrise at an intersection of roads, suddenly a great pillar of light emerged from behind the clouds, with the sun being only partially visible, making the sky vibrate in a few thousands of yellow, red, orange, blue, even green nuances. I was breathless, and I am partially colorblind. I wanted to stop, but we were late at work. Still, I was watching in my back mirror this wonder, asking myself if I should abandon my worries and just stop and shoot.\nOf course, I decide to stop. The clouds were already releasing the sun light fully, so I have kind of missed that special minute. Still, the pillar of light remained, which gave me the probably unique possibility to showing you this wonder.\nThe phenomenon is described by Wikipedia:\nLight pillars are a kind of optical phenomenon which is formed by the reflection of sunlight or moonlight by ice crystals that are present in the Earth’s atmosphere.\nThe light pillar looks like a thin column that extends vertically above and/or below the source of light. The light pillar is prominently visible when the Sun is low or lies below the horizon. It normally forms an arc that extends from five to ten degrees beyond the solar disc. Light pillars can sometimes also be seen arising from the Moon.\nLight pillars are formed by reflection from ice crystals with roughly horizontal faces.","domain":"optical_engineering"}
{"url":"https://neelikon.com/fluorescents-the-dazzling-dyes.php","date":"2024-04-19T15:51:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817438.43/warc/CC-MAIN-20240419141145-20240419171145-00314.warc.gz","language_score":0.9437028169631958,"token_count":432,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__87161246","lang":"en","text":"The special application of fluorescent dyes\nExceptionally bright and illuminating, fluorescent colours have been attracting us for ages. An American invention, fluorescent pigments were the result of an experiment by Bob and Joe Switzer. Their attempt to produce colours far brighter than the normal that could glow in dark places led to an invention that has significantly impacted the pigment industry.\nIn the early days, fluorescent dyes were used in stage magic shows and movie posters. As time progressed, the applications grew by the hour. A combination of fluorescent dyes with new class polymers led to their effective use in printing and ink sectors. Due to their excellent stability, fluorescent dyes were then easily used in outdoor printing materials. One of the leading detergent products in the market switched to fluorescent packaging, thus grabbing eyeballs on the product shelves.\nHowever, a major breakthrough for fluorescent dyes came in the safety applications. From traffic cones to safety vests and indicators used for road signs. Fluorescent dyes make it possible for the driver to see the signs from far, thus preventing mishaps and accidents on the road.\nThe uniforms of firefighters, constructions workers, and other safety personnel are designed in fluorescent fabrics to indicate their presence and ensure safety in the working area.\nApart from the safety applications, we see fluorescent colours being welcomingly accepted in the cosmetic market too. From fluorescent lipsticks to highlighters, people use shining colours that reflect their glimmering personality.\nAt Neelikon, the specialization lies in manufacturing speciality fluorescent colours under the brand name “NEELIGLOW”. The range of fluorescent dyes offered by Neelikon is recognized to give high colour strength and fluorescent intensity, with good stability & light fastness properties. Apart from fluorescent dyes, Neelikon also offers dye-Intermediates for fluorescent dyes, optical brighteners, and fluorescent brightening agents.\nA complete range of fluorescent services? Take that as a sign of a dazzling relationship!\nBelow are some of the Fluorescent dyes under our brand name “NEELIGLOW”.","domain":"optical_engineering"}
{"url":"https://www.fortsmithbusinessphonesystems.com/fiber-optic-cabling/","date":"2024-04-16T17:56:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00279.warc.gz","language_score":0.88596111536026,"token_count":730,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__31274387","lang":"en","text":"Fiber Optic Cabling Business Phone Systems Fort Smith\nThe advent of fiber optic cabling marks a revolutionary milestone in modern telecommunications, ushering in a transformative era. These state-of-the-art cables transmit data using light, endowing them with a clear advantage over traditional copper counterparts in terms of performance and efficiency. With significantly expanded bandwidth and minimal signal loss, fiber optic cables facilitate data transmission over extensive distances without noticeable degradation, making them indispensable for long-range communication. Their robust security features render them an ideal choice for transmitting sensitive information, ensuring data integrity and confidentiality. In our increasingly interconnected world, where rapid and reliable connectivity is imperative, fiber optic cabling emerges as the preferred solution for delivering high-speed internet, phone, and TV services. As technology continues to advance, fiber optic cabling is poised to maintain its pivotal role in supporting and enhancing advanced telecommunications infrastructure.\nTwo industry standards for Fiber Optic Cabling\nSingle-mode (100BaseBX standard)\nThe advent of single-mode fiber optics technology represents a significant paradigm shift in long-distance corporate communication and data transfer. Breakthroughs such as the 100BaseBX Standard empower businesses to efficiently transmit large data payloads over vast geographical expanses. This state-of-the-art technology not only ensures robust data security but also safeguards against potential third-party breaches. Furthermore, it guarantees uninterrupted connectivity, facilitating real-time updates and elevating the quality of decision-making to achieve operational excellence. In essence, single-mode fiber optics technology functions as a dependable and secure conduit for data communication, enabling organizations to foster global collaboration with unparalleled reliability and efficiency.\nMultimode (100BaseSX standard)\nMultimode fiber optic technology has experienced significant evolution, solidifying its reputation as a reliable and cost-effective solution for businesses. Recognized by its larger core, which supports multiple modes of light for data transmission, these cables excel in shorter-distance applications while maintaining high-speed data transfer capabilities. Recent advancements in vertical-cavity surface-emitting laser (VCSEL) technology and the introduction of new optical multimode (OM) standards have expanded their capabilities for longer-range connections. As a result, businesses can harness the potential of multimode fiber optics to strengthen their communication infrastructure and gain a competitive advantage. At Fort Smith Business Phone Systems, we specialize in the installation and maintenance of multimode fiber optic systems, providing customized solutions to meet our clients’ unique requirements. Contact us today to explore how multimode fiber optics can enhance your business operations.\nWith a storied history spanning over two decades, Fort Smith Business Phone Systems continues to set the pace in the telecommunications industry, catering to both individuals and businesses with state-of-the-art solutions. Our unwavering commitment to personalized service has earned us numerous accolades, underscoring our dedication to delivering exceptional customer experiences. Our comprehensive service offerings encompass installation, maintenance, training, and more, all meticulously tailored to align with the unique requirements of our clients. Backed by competitive pricing and an unwavering pursuit of excellence, we empower businesses to effortlessly navigate the ever-evolving landscape of modern communication technology. Whether your objective is to upgrade your phone system or optimize your existing infrastructure, our seasoned team stands ready to provide the most effective solutions. Contact Fort Smith Business Phone Systems today and explore how we can equip you to stay at the forefront of the dynamic world of communication.\nLet's Discuss Now!\nGet the best advice and answers to questions you need answers to about our VOIP services and technology. Request quotations on the go!","domain":"optical_engineering"}
{"url":"http://perthlaservision.com.au/types-of-laser-eye-surgery/lens-implant-eye-laser-surgery-perth","date":"2017-09-22T06:05:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818688671.43/warc/CC-MAIN-20170922055805-20170922075805-00381.warc.gz","language_score":0.9313593506813049,"token_count":1425,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__206801804","lang":"en","text":"Perth Laser Vision was among the first in Australia to receive the AcrySof IQ ReSTOR intraocular lens implant (IOL), a revolutionary surgically implanted lens that results in patients ability to see more clearly at a wider range of distances without glasses or contacts.\nAcrySof IQ ReSTOR Lens Implant Eye Laser Surgery\nThe AcrySof IQ ReSTOR lens is designed to enhance contrast sensitivity, reduce dependency on glasses, and improve functional vision. The lens offers multiple advantages over traditional intraocular lens implants:\n- Provides better vision for near and far distances.\n- Improved contrast sensitivity.\n- Filters harmful UV and blue light.\n- Rich, vibrant colour perception.\nIt’s a huge evolutionary step. This for of eye laser surgery reduces the need for reading glasses after cataract removal, without compromising distance vision, has been a goal of ophthalmology for many years. Until now, the vast majority of patients who undergo cataract eye laser surgery received a single-vision lens implant, which typically requires them to carry around reading glasses so they can read a newspaper, menu or medicine bottle, or do other things that require close vision.\nAspheric Design Advantage\nTraditional lens implants are spherical, producing some peripheral distortion. AcrySof IQ ReSTOR lens is slightly flatter in the periphery and are designed to provide sharper focus and better contrast.\nThe AcrySof IQ ReSTOR lens is a permanent artificial lens used to replace the natural lens during cataract eye laser surgery. The ReSTOR lens is made of a soft plastic. It is folded and inserted into the eye through a tiny incision around 2mm across. After insertion, the lens gently unfolds to “ReSTOR” vision. The supporting arms of the lens maintain proper positioning within the eye.\nMeeting the Challenge of Presbyopia With Eye Laser Surgery\nThe ability to focus at various distances is called “accommodation”, and is the normal condition of a youthful natural lens. However, as we age, this lens becomes more rigid and our ability to accommodate diminishes, usually starting around the age of forty. This inability to accommodate is called presbyopia. Presbyopia is the reason that reading glasses or bifocals are required as we age.\nAging also causes the eye’s natural lens to become more opaque, which scatters light and creates cloudy vision. The opaque lens is called a cataract. Traditionally, when a cataract develops, the natural lens inside the eye is replaced with an artificial lens. Standard Intra-Ocular Lenses (IOL’s) are single-vision lenses, which allow good vision without glasses for one distance only, usually for distance. Glasses would still be needed for near vision.\nReSTOR Intra-Ocular Lens Implant – An Entirely Unique Design\nThe ReSTOR lens has an uniquely shaped optic, called “apodization,” that is entirely new to the field of ophthalmology. The AcrySof IQ ReSTOR represents breakthrough technology because it treats the refractive problem of presbyopia. It delivers consistent high-quality accommodative-like vision across the entire visual spectrum due to its patented apodized design.\nWhile other “accommodative” IOL’s have attempted to produce vision at various ranges by depending on the action of the older eye’s ciliary muscles to produce accommodation, the ReSTOR lens inserted during this type of eye laser surgery responds to how wide or small the eye’s pupil is to distribute light between near and far vision. Having both “refractive” and “diffractive” surfaces, the ReSTOR lens works like two lenses in one. The refractive surface is for distance and the diffractive surface is for near. This amazing combination renders a lens implant that is not dependent on the movement of the lens, making visual outcomes more highly predictable.\nApodization is the gradual tapering of the diffractive steps (illustrated below) from the centre to the outside edge of a lens. This unique design optimally manages light energy delivered to the retina because it distributes the appropriate amount of light to near and distant focal points, regardless of the lighting situation. Apodized diffractive optics are designed to improve image quality while minimizing visual disturbances. The result is an increased range of quality vision that delivers a high level of spectacle freedom.\nDiffraction involves the diffusing or bending of light to multiple focal points as it passes through the lens. The centre diffractive area of the ReSTOR supports near vision. The centre of the lens surface consists of an “apodized” diffractive optic, a series of tiny steps in that centre area working together to focus light for a seamless transition of near through distance vision.\nRefraction involves the redirection of light passing through the lens, to a single focus point on the retina. The outer ring of the ReSTOR is the refractive area that surrounds the apodized diffractive region and is what allows you to experience distance vision.\nPrevious attempts using various multifocal lenses often resulted in significant haloes and reduced contrast sensitivity in low light conditions. These issues are rarely a problem with the new Aspheric ReStor lens. Additionally, unlike monovision with monofocal implants; there is no loss of depth perception since both eyes are set equally. Reading ability, even for fine print, is markedly improved with the ReSTOR.\nHealth care is expensive, that’s why many families cannot order the medicines they need. There are various conditions when men prefer purchase medications from online pharmacy. US citizens get millions varied medicines online. For example Xylocaine causes loss of feeling in an area of your body. Given during surgery. Moreover treats emergency heart rhythm problems. Cialis is used to treat few types of health problems. What about dosage for cialis and sexual problems? Apparently every man has heard at least something about cialis for daily use dosage. The definition of erectile dysfunction the persistent inability to maintain an hard-on to the point of orgasm, influence an estimated 15 to 30 millions men in the United States only. Today for men of any age, it can be first sign for severe complaints, so it’s essential for your overall health, not just your sex existence, to see a health care vocational if you experience erection disfunction. Why it happen? What kinds of professionals treat sexual diseases in men? What is the most significant information you would like to know know about this? Ususally patients using this generic mostly do not have potentially serious side effects to Cialis. Store the generics away from excess heat. For example the liquid medicaments for preference have to be kept in the refrigerator, but other may be stored at room temperature.","domain":"optical_engineering"}
{"url":"http://neo.no/research/pipeline/","date":"2018-02-19T02:08:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812306.16/warc/CC-MAIN-20180219012716-20180219032716-00192.warc.gz","language_score":0.9339860677719116,"token_count":974,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__21207658","lang":"en","text":"Early Pipeline Inspection SystemsThe first experiments with an underwater pipeline inspection system started in 1988. The concept was based on line scan cameras. A feasibility study was conducted in 1993 and a development project took place in the period 1994 to 1995. This system was named XPLISIT and was an external imaging pipeline inspection system to be mounted on a ROV.\nThe next step was internal inspection of natural gas pipelines. A novel system based on line scan cameras and laser illumination in a self contained system was designed. Image data was stored on hard disks and the complete system was powered by Li batteries. This system was mounted on cleaning pig and was named Simplisit. In addition to images customers wanted 3D information as well: What is the depth of that cavity? was typical questions. This lead to the current pipeline inspection system Optopig.\nPrinciple of operation\nThis figure shows a 3D view of the profiling concept. You can see the fan\nshaped laser beam illuminate the pipe wall. Both an obstacle and a cavity are\npresent. The image formed on the image sensor represents the intersection line\nbetween the laser beam and the pipe wall.\nThis figure illustrates the principle of optical triangulation. A fan shaped\nlaser beam perpendicular to the pipe wall illuminates a thin stripe on the\nwall. This stripe is depicted by the the camera and an image is formed on the\nsensor. Since the angles and distances are constant, the image on the sensor\nwill move depending on the distance between the laser/camera unit and the pipe\nThis figure gives a coarse schematic overview of the Optopic inspection tool\nand its different parts. The system is based on custom, high speed cameras,\nstorage media, lasers, batteries and complex, custom electronics.\nThe Optopig Hardware\nA peek into the hidden inner parts of the 10\"-16\" Optopig showing the main camera module. In a ring we can see the 8 CMOS image sensors packed in custom chip scale packages. Each sensor has a programmable logic chip that controls the acquisition and processing of images at 500MB/s.\nA close-up of the camera system for the 40\"-42\" Optopig. The right part of the image shows the ring of 8 lasers, while the left part shows the ring of 8 cameras, looking forward at an angle of 45 degrees.\nDeparture of the 40\"-42\" Optopig. The compact inspection unit is mounted onto a rugged carrier and inserted into the pig trap. The carrier is wheel based to allow the best possible centring of the camera unit. The sealing disks provides the necessary drive force. This version of Optopig can run at velocities up to 5m/s.\nResults from the Use of Optopig\nWho wouldn't feel some need for celebration when time finally has come to paint the number of 1000 onto a pipe. The chances of getting \"caught\" was extremely low before the arrival of Optopig.\n2D image of a normal field joint area. To the left we can se the vertical welding seam, with uncoated, dark, pipe surface both before and after. Running through the image horizontally we can see the longitudinal weld. This weld is done before the coating, so we can see that it is covered by coating. We can also see that the weld is ground down towards the field joint.\n3D close-up of a small part of a ball valve that is not completely open. The right part of the image shows the glossy inner of the steel ball. The step we can see was measured to 10mm.\n2D image of a machined defect in a test pipe. Around the defect we can see some text that tells us that this is a 2.5cm wide and 10% deep defect.\nA 3D close-up of the defect. The dark colour indicates that the coating is missing, and possibly that the surface is quite rough.\nIn a 3D wire frame plot we can clearly see the shape of the defect. By using measurement tools we can determine the size, and depth of the defect.\nThe Optopig SoftwareA comprehensive software system is available for use on Optopig data. This software will be used by personnel performing manual or semiautomatic inspection of the pipeline. Data can be displayed in 2D or 3D in any thinkable way, measurement can be done and findings can be logged in a \"bookmark\" system.\nMore details on the Optopig system can be found on these pages : optopig.com.\nAutomatic Anomaly Detection in Pipeline DataA system for automatic and semi-automatic detection of anomalies is available.\nCo-operation with Stanford University has taken place in this part of the project.","domain":"optical_engineering"}
{"url":"https://deutschmedical.com.au/products/rudy-project-sensor-lead-glasses","date":"2020-12-04T19:45:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141743438.76/warc/CC-MAIN-20201204193220-20201204223220-00309.warc.gz","language_score":0.82977294921875,"token_count":515,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__38786476","lang":"en","text":"The Rudy Project SENSOR Lead Glasses are entirely designed, engineered, and made in Italy. This frame blends cutting-edge ergonomic features for superior fit with advanced ultralight materials such as Hybrid Titanium and Kynetium.\nThe Rudy Project SENSOR X-Ray Glasses are part of our Low-Bridge-Fit Collection and are designed to fit comfortably on faces with a lower nose. The frame sits higher on the nose and away from cheekbones.\nWith a weight of only 54g, the Rudy Project SENSOR X-Ray Glasses are one of the LIGHTEST radiation glasses available in Australia. This model is therefore ideal for use during mid to long-term interventional procedures.\nThis model features Med-X Corning 0.75mm Pb protective lenses which offer you the clearest vision possible while providing maximum protection.\nThe SENSOR frame allows for high-index prescription, offering all three prescription types with total powers of up to +/-8.00. By adding the option of anti-reflective fog-free coating - a new generation multi-part coating - your vision performance improves by reducing lens reflections and fogging. The anti-fog component of the coating actually absorbs moisture, thereby reducing lens fogging.\n- Radiation Protection Standards: AS/NZS4543.3; IEC61331.3-2014 -> tested and certified against a full range of x-ray energies: 50-150kVp\n- Radiation Safety Level I: Lead Glasses provide front protection\n- Front Lens Protection: 0.75mmPb Leaded Glass\n- Lens Material: Med-X Corning 0.75mmPb Leaded Lenses (no yellow tinge)\n- Prescription Frame: Single vision (+/-8.00), bifocal vision (+/-4.00), progressive vision (+/-8.00)\n- Optional Lens Coatings: 2-in-1 anti-reflective fog-free coating\n- Frame Material: Hybrid Titanium and Kynetium\n- Weight: 54g\n- Colour: Carbon Silver\n- Manufacturer/ Brand: Barrier Technologies/ Rudy Project\n- Certification: CE 0120\n- Face Shapes: Small\n- Low-Bridge-Fit: Ideal for low or narrow nose bridges, flat facial features and/ or high check bones.\nIncluded with Every Pair of Eyewear\n- Hard Case\n- Soft Microfibre Cloth\n- Adjustable Strap/ Retainer Cord","domain":"optical_engineering"}
{"url":"http://sidmelo.blogspot.com/2015/10/single-photonics-and-quantum-information.html","date":"2018-02-22T01:00:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813832.23/warc/CC-MAIN-20180222002257-20180222022257-00261.warc.gz","language_score":0.926571249961853,"token_count":348,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__22496544","lang":"en","text":"The smallest unit of light is a “photon”. Generation, manipulation and measurement of light at or near the fundamental limit of a photon can enhance the performance of many optical systems. Remote sensing, long-distance communications, biological imaging, and quantum information science are some near-term applications that would benefit immensely from better optical components and techniques that work efficiently at few or single photon levels. However, the technologies to generate, manipulate, and detect these states of light are inadequate for the emerging applications. We are developing new light sources, detectors, and measurement techniques to address these needs.\nOne of the activities in this group is the development of single photon technologies for quantum information science and technology. We work closely with the Nanostructure Fabrication and Metrology Project on the generation of novel non-classical states of light and the detection of single photons. Currently, we are investigating the use of nonlinear fibers and nonlinear crystals as a source of correlated photon pairs or squeezed light. We are also manipulating the squeezed light to make Schroedinger \"Cat\" states of light. In addition to making non-classical states of light, we build detector systems that are the best in the world at operating at the single photon level. Presently, our project is primarily focused on using two different superconducting detector technologies -- transistion-edge sensors (TES) and superconducting nanowire single photon detectors (SNSPD).\nUsing our sources and detectors, we also are actively involved in characterizing optical compoments at the few photon level, demonstrating new optical devices that function at the single photon level, demonstrating of new measurements at faint light levels, and demonstrating new applications that require single photons.","domain":"optical_engineering"}
{"url":"https://disztarcsa.blog.hu/?token=cd854fa2937e0180fb37fa65c544a673","date":"2023-11-28T16:09:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099892.46/warc/CC-MAIN-20231128151412-20231128181412-00306.warc.gz","language_score":0.9261188507080078,"token_count":976,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__211706967","lang":"en","text":"Distributing Glass Tubes and Rods: A Technical Perspective\nThe distribution of glass tubes and rods is a crucial aspect of various industries, ranging from scientific research and laboratory applications to manufacturing and construction. These glass components serve a multitude of purposes, including chemical analysis, optical instrument production, and architectural design. In this technical article, we will delve into the intricacies of distributing glass tubes and rods, focusing on the processes, considerations, and challenges involved in ensuring their quality and integrity reach end-users.\nTypes of Glass Tubes and Rods\nBefore delving into the distribution process, it's essential to understand the types and varieties of glass tubes and rods available. These components come in various forms, including:\nBorosilicate Glass Tubes: Known for their exceptional thermal resistance and chemical durability, borosilicate glass tubes are widely used in laboratories for applications such as chemical reactions, distillation, and the creation of custom glassware.\nQuartz Glass Tubes: Quartz glass tubes are prized for their high purity and ability to withstand extreme temperatures, making them ideal for use in semiconductor manufacturing, UV and IR applications, and optical components.\nSoda-Lime Glass Tubes: These tubes are common in everyday applications and are often used in the production of lighting, packaging, and household items. They are known for their transparency and ease of manufacturing.\nOptical Glass Rods: Optical glass rods are used in the production of lenses, prisms, and other optical components. They must meet stringent quality standards to ensure optical clarity and precision.\nThe Distribution Process\nThe distribution process for glass tubes and rods is complex, involving multiple stages to ensure the safe and efficient delivery of these delicate products.\n1. Manufacturing and Quality Control\nThe process begins with the manufacturing of the glass tubes and rods. Manufacturers must adhere to strict quality control measures to ensure that the products meet industry standards and specifications. This includes checking for defects, ensuring dimensional accuracy, and verifying the glass's optical properties if it is intended for optical use.\nProper packaging is critical to protect glass tubes and rods during transportation. Tubes and rods are often fragile and susceptible to breakage if mishandled. They are typically packaged in individual containers, such as cardboard tubes or plastic sleeves, with cushioning materials to prevent contact and reduce the risk of damage.\n3. Inventory Management\nDistributors must maintain accurate inventory records to track the availability of different types and sizes of glass tubes and rods. An efficient inventory management system ensures that customers can access the products they need promptly.\n4. Order Processing\nCustomers place orders for specific quantities and types of glass tubes and rods. Distributors must accurately process these orders, verify product availability, and coordinate shipping logistics. This step involves meticulous attention to detail to prevent errors in order fulfillment.\n5. Shipping and Handling\nShipping glass tubes and rods requires careful handling to minimize the risk of breakage during transit. Distributors work closely with carriers to choose appropriate shipping methods and packaging materials that provide adequate protection. Fragile labels and handling instructions are often included on packages to alert carriers to the delicate nature of the contents.\n6. Quality Assurance upon Receipt\nUpon receiving glass tubes and rods, customers should conduct a thorough inspection to ensure that the products meet their specifications and are free from defects or damage incurred during transit. Distributors should provide a clear process for customers to report any issues and request replacements if necessary.\nConsiderations and Challenges\nDistributing glass tubes and rods presents specific considerations and challenges:\nFragility: Glass tubes and rods are inherently fragile, and any mishandling can lead to breakage. Distributors must take extra precautions to minimize the risk of damage during transit.\nCustom Orders: Customers often require customized lengths, diameters, or types of glass tubes and rods. Distributors must be equipped to handle custom orders efficiently.\nQuality Assurance: Ensuring the quality of glass products is paramount. Distributors should maintain strong relationships with reputable manufacturers and conduct periodic quality audits.\nRegulatory Compliance: Depending on the industry and application, glass tubes and rods may need to meet specific regulatory standards. Distributors should stay informed about relevant regulations and certifications.\nInventory Management: Managing a diverse inventory of glass tubes and rods can be complex. Effective inventory management software can streamline this process.\nThe distribution of glass tubes and rods is a multifaceted process that demands careful handling, rigorous quality control, and strong customer support. Whether used in scientific research, manufacturing, or architectural applications, these glass components play a vital role in a wide range of industries. Distributors that prioritize quality, precision, and customer satisfaction are essential in ensuring that end-users receive glass tubes and rods that meet their exacting requirements, enabling them to excel in their respective fields.","domain":"optical_engineering"}
{"url":"https://www.pryortechnology.com/case-studies/large-laser-marking-cabinet/","date":"2023-10-03T00:35:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511023.76/warc/CC-MAIN-20231002232712-20231003022712-00855.warc.gz","language_score":0.8796828985214233,"token_count":121,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__184783063","lang":"en","text":"Large Laser Engraving Machine\nOur customer required a laser marking system for a variety of large components. We designed and built a suitable enclosure, enabling easy and accurate loading of a variety of components.\nThe enclosure is fully light sealed to ensure safe laser marking, and features an automatic door for operator speed and ease.\n- Easy loading of large components\n- Large marking area\n- Intuitive operator controls\n- High quality laser mark\nLarge Laser Marking Cabinet from Pryor\n“An extremely versatile and flexible laser marking solution for small to medium sized components”\nDan | Head of Sales","domain":"optical_engineering"}
{"url":"https://irdroid.eu/product/irdroid-ir-receiver-stbs/","date":"2021-04-13T07:49:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038072175.30/warc/CC-MAIN-20210413062409-20210413092409-00021.warc.gz","language_score":0.9081700444221497,"token_count":133,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__123916336","lang":"en","text":"The Infrared remote control receiver extender is suitable for home IR controlled appliances with IR receiver jack such as STBs and any other equipment that has a 3.5mm / 2.5mm ir receiver jack.\nIt allows you to mount it near your TV and hide the STB in a cabinet or install the STB behind the TV set.It’s high sensitivity IR receiver module provides 120 degree IR remote control range and improves IR remote control signal reception.\n- – High sensitivity IR receiver\n- – 3.5mm / 2.5mm IR receiver jack\n- – 1.5m cable length\n- – 3M mounting sticker","domain":"optical_engineering"}
{"url":"http://www.osa-opto.com/home.html","date":"2013-12-10T08:53:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164014082/warc/CC-MAIN-20131204133334-00094-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.871940016746521,"token_count":578,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__22026121","lang":"en","text":"ChromaLit Linear remote phosphor optics appear white in the off state and enable LED-based linear lighting systems that can produce 2000 lm per foot in CCTs ranging from 3000K to 5000K.\nNichia and Everlight continue to scrap over intellectual property with the former taking new action, while Cree and Osram make executive appointments and The Connected Lighting Alliance will study commercial indoor SSL.\nOSA Opto Light - your partner for customized and special LED solutions\nWe develop and manufacture special, custom designed and standard High Brightness & High Power LED-Chips , SMD-LEDs and LED-Lamps in the colors white, uv 350-420nm ,vis 420-660nm and ir 660-1080nm. Our custom designed LED-Modules for OEMs are an efficient way for luminaries and other lighting applications.\nBright ideas - custom designed\nMade in Berlin, Germany\n2nd 'Berlin WideBaSe' Conference on Technology and Applications of Nitride Semiconductors\nThree years ago, thirteen Berlin-based companies and research institutions founded the 'Berlin WideBaSe' consortium with the aim to combine technological potentials in the field of wide band gap (AlGaIn)N semiconductor materials and devices. Their work was supported and partly funded by the German ministry of education and research (BMBF). Besides of the development of nitride-based device technologies, the collaboration also includes related activities in crystal growth and characterization techniques\nThe program of this conference covers:\n- the results of the joint efforts\n- the full spectrum of materials and technology research and development\n- the application of nitride semiconductor based devices\nWhen: September 19 – 20, 2013\nnew \"black\" blue LED\nUpdated IR Series 440\nWe continue our development to expand the wavelength range of our products with the introduction of the Power-LED emitting 970nm, 1020nm and 1050nm Peak-Wavelength. These high reliable, 0.8mm thin devices are the most powerful LED source for this wavelength in the market. Our test board services and secondary optics are available.\nProductpage, new Data-sheet\nnew UV Module Serie OLM-018\nBased on the requests of our customers OSA Opto Light GmbH has developed an UV–LED Module. Using high efficiency UV LED-Chips, the requirements on radiant densities for photochemical processes in the medium range are met. The UV Modules is available between 365nm and 400nm with high radiant density for photochemical processes.\nOSA Opto Light is a member of the research and development platform for nitride base semiconductors, Berlin WideBaSe. This platform is supported by the Federal Ministry of Education and Research. The main target of our company is the development of UV optoelectronic devices.","domain":"optical_engineering"}
{"url":"https://opticaleng.persianblog.ir/3MQpeeGR3GtDKKYNgXGy-Encyclopedia-of-Laser-Physics-and-Technology","date":"2018-12-11T14:46:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823621.10/warc/CC-MAIN-20181211125831-20181211151331-00030.warc.gz","language_score":0.8294287919998169,"token_count":2436,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__245098175","lang":"en","text":"Encyclopedia of Laser Physics and Technology\nEncyclopedia of Laser Physics and Technology<?xml:namespace prefix = o ns = \"urn:schemas-microsoft-com:office:office\" />\nمن سال پیش یرای کاری یک دایرت المعارف فیزیک لیزر را از روی اینترنت جمع آوری کردم. و به صورت یک کتاب در آوردم. این مجموعه می تونه به کار خیلی از شماها بیاد. چون مطالب متنوع و جامعی را در زمینه فیزیک لیزر داره. از این جهت این فایل را به صورت پست های جداگانه براتون در وبلاگ قرار می دهم . همچنین در پست های آینده کل اون را براتون آپلود می کنم تا یکجا از اون استفاده کنید.\nامیدوارم که به کارتون بیاد. در ضمن زبانتون هم خوب می شه.\nاگر کسی از دوستان بخشی از کار را ترجمه کرد لطف کنه تا با گذاشتن ترجمه اون در وبلاگ به دیگران هم کمک کرده باشه.\nDefinition: optical modulators based on the acousto-optic effect\nAn acousto-optic modulator (AOM) is a device which allows to control the power, frequency or spatial direction of a laser beam with an electrical drive signal. It is based on the acousto-optic effect, i.e., the modification of the refractive index by the oscillating mechanical pressure of a sound wave.\nThe key element of an AOM is a transparent crystal (or piece of glass) through which the light propagates. A piezoelectric transducer attached to the crystal is used to excite a high-frequency sound wave (with a frequency in the order of 100 MHz). Light can then experience Bragg diffraction at the periodic refractive index grating generated by the sound wave; therefore, AOMs are sometimes called Bragg cells. The scattered beam has a slightly modified optical frequency (increased or decreased by the frequency of the sound wave) and a slightly different direction. The frequency and direction of the scattered beam can be controlled via the frequency of the sound wave, while the acoustic power allows to control the optical powers. For sufficiently high acoustic power, more than 50% of the optical power can be diffracted.\nThe acoustic wave may be absorbed at the other end of the crystal. Such a traveling-wave geometry allows to achieve a broad modulation bandwidth of many megahertz. Other devices are resonant for the sound wave, exploiting the strong reflection of the acoustic wave at the other end of the crystal. The resonant enhancement can greatly increase the modulation strength (or decrease the required acoustic power), but reduces the modulation bandwidth.\nSome applications of acousto-optic modulators are:\n2. active mode locking (where the AOM modulates the cavity losses with the round-trip frequency or a multiple thereof)\n3. modulating the power of a laser beam, e.g. for laser printing\n4. shifting the frequency of a laser beam, e.g. in various measurement schemes\nAdiabatic soliton compression\nefinition: a pulse compression technique based on the adaptation of solitons to slowly varying propagation parameters\nAdiabatic soliton compression is a technique for the temporal compression of ultrashort pulses in a fiber. The principle is as follows. For a fundamental soliton pulse in a fiber, the product of pulse energy and pulse duration is proportional to the dispersion divided by the nonlinearity of the fiber. Thus, the pulse duration must be reduced if the dispersion is reduced while keeping constant the pulse energy. Significant pulse compression can thus be obtained by propagating the pulses through a dispersion-decreasing fiber. However, the following conditions must be fulfilled:\n1. The initial pulses must fulfill the soliton condition at the input fiber end.\n2. The fiber dispersion must be varied sufficiently slowly to allow adiabatic adaptation of the pulses to the fiber parameters. (Otherwise, the pulses can get distorted.) More precisely stated, the dispersion must not vary significantly over a length scale of a soliton period. As the latter scales with the square of the pulse duration, rather long fibers are required if the initial pulses are longer than e.g. a picosecond.\n3. The fiber dispersion must stay sufficiently constant over the whole bandwidth range of the compressed pulses. (However, it has been shown that slightly normal dispersion in the wings of the generated pulse spectrum can be beneficial.)\nEven though the method is rather elegant and powerful, it suffers from the need to use a dispersion-decreasing fiber. The latter requirement is eliminated by a variant of the method, where the fiber has constant dispersion but contains a laser-active dopant which allows to amplify the pulses: an increasing pulse energy for constant dispersion also results in a temporal compression.\nThe amplification factor (or gain factor) of an optical amplifier is the factor by which the input power is amplified. An alternative specification of gain is in terms of decibels, calculated as 10 times the logarithm of base ten of the amplification factor.\nAmplified spontaneous emission\nDefinition: a process where spontaneously emitted radiation (fluorescence) is amplified\nIn a laser medium with large gain, the fluorescence from spontaneous emission can be amplified to high levels. This amplified fluorescence may be used in applications where light with low temporal coherence but good spatial coherence is required.\nIn lasers and particularly in high gain amplifiers, amplified spontaneous emission is usually an unwanted effect. It tends to limit the achievable gain in a single stage of a fiber amplifier to the order of 40 dB; higher gains are possible e.g. for amplification of pulses, if several amplifier stages are used, which are separated by filters, isolators, and/or optical modulators.\nEven if amplified spontaneous emission in an amplifier is not strong enough to extract significant power, it can significantly contribute to the noise of the amplified signal.\nDefinition: amplifiers consisting of several stages\nAn amplifier chain is a sequence of several amplifiers, which can subsequently amplifiy some signal. In case of just two amplifiers, one often calls the first one a preamplifier and the second one a power amplifier. Such schemes are common in electronics, but also in optics (as considered here), because the concept of an amplifier chain can have advantages compared to an approach where one tries to obtain the full performance in a single amplifier stage:\nThere are certain trade-offs, for example between obtaining a high saturated output power and a high gain. For example, a high saturated output power calls for a large mode area in the last section of the amplifier, while the preamplifier can have a better gain efficiency when the mode area is chosen small. Thus one can obtain better overall performance by splitting the amplifier into different amplifier stages which can be independently optimized. In ultrashort pulse amplifiers, the power amplifier may also need increased mode areas for reducing nonlinear effects. One can even use different kinds of amplifiers, e.g. a regenerative amplifier as a high-gain preamplifier and a multipass amplifier as power amplifier with moderate gain, or one can combine an optical parametric amplifier with a laser amplifier.\nSometimes it is necessary to insert certain optical elements between different stages of an amplifier chain. For example, in high gain amplifiers one often uses an optical isolator between the stages in order to reduce the sensitivity to amplified spontaneous emission (ASE) and back reflections. In amplifiers for pulse amplification, one sometimes uses an optical gain (e.g. an acousto-optic modulator) between the stages, which is opened only for some short time interval around that of the pulse passage.\nThe use of amplifier chains allows for a more modular approach where different performance numbers can be obtained simply by differently combining existing amplifier stages (modules).\nDefinition: noise introduced to a signal in an amplifier\nApart from amplifying the input, every optical amplifier also adds some excess noise to the output. This is often quantified with the so-called noise figure.\nAt least for phase-insensitive amplifiers (i.e., those where the gain does not depend on the phase of the input), quantum optics dictates some minimum level of the added noise. For example, for high gain applied to a shot-noise limited input, the output noise power must be at least twice that of a hypothetical noiseless amplifier, i.e., the minimum noise figure is 2, corresponding to 3 dB. For laser amplifiers, the unavoidable excess noise comes from spontaneous emission of the gain medium into the laser mode. For a four-level gain medium with a low-noise pump, the excess noise can approach the minimum quantum-mechanically allowed level. (Note that the gain medium acts as an energy reservoir, effectively damping the influence of high frequency pump noise.) In a non-degenerate optical parametric amplifier, the excess noise comes from vacuum fluctuations entering the idler port, and possibly also from the pump wave. A degenerate parametric amplifier does not need to add excess noise (it has no idler!), but its amplification is phase-sensitive.\nDefinition: devices for amplifying the power of light beams\nMost amplifiers are laser amplifiers, where the optical amplification is based on stimulated emission in a gain medium such as a crystal or glass material which is doped with laser-active ions, or an electrically pumped semiconductor. However, there exist other physical mechanisms for optical amplification, namely mechanisms based on optical nonlinearities, such as e.g. parametric gain or Raman gain (→ Raman amplifiers).","domain":"optical_engineering"}
{"url":"http://kurdistaninventment.org/2698/","date":"2021-07-29T03:47:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153814.37/warc/CC-MAIN-20210729011903-20210729041903-00437.warc.gz","language_score":0.959226667881012,"token_count":239,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__21000868","lang":"en","text":"[See another image about this article]The “400-SSA003” is a network camera that allows you to check your home with the camera installed from outside using your smartphone. You can watch the camera image from your smartphone with the dedicated app. You can check the video in high-definition image quality, and you can switch between “low image quality mode: SD” and “high image quality mode: HD” with reduced communication volume on the application side. In addition, it is equipped with an infrared night vision mode that allows you to take clear pictures even in dark places or at night. With motion detection and voice detection functions, a notification will be sent to your smartphone when it is detected. In addition, you can make a two-way call with the camera and smartphone, and you can talk in real time. A microSD card can be built into the camera for continuous recording. In addition, camera images can be shared by up to 6 people. The main body size is about W630 x D580 x H960 mm, and the weight is about 146 g. It can be used while being powered by USB with the attached cable.","domain":"optical_engineering"}
{"url":"https://www.campers-shop.com/binoculars-6/","date":"2021-12-04T12:57:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964362992.98/warc/CC-MAIN-20211204124328-20211204154328-00639.warc.gz","language_score":0.9394201636314392,"token_count":2965,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__188546473","lang":"en","text":"Campers-Shop.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Campers-Shop.com also participates in affiliate programs with Clickbank, CJ, ShareASale, and other sites. Campers-Shop.com is compensated for referring traffic and business to these companies.\nYou will probably find the largest assortment of binoculars and monoculars on these pages. Whether for nightly stargazing, hunting, sailing, bird watching or just to discover nature or maybe for the opera – you will find your binoculars here! Binoculars are particularly useful when you are out in nature, for example when hiking. This means that you can also perceive distant targets or objects from a great distance. Binoculars are also part of the basic equipment of every camper or hiker.\nBINOCULARS: CONSTRUCTION AND TECHNICAL DATA\nBasics of a binocular\nThe optical performance of binoculars depends on the interaction of a whole range of factors. Only when each and every one of these factors has been optimized is the result a ferroglass of excellent performance. Razor-sharp and brilliant images without color distortion always bring joy to every observation.\nInferior binoculars of lower quality are not only less fun or, if the details are not sufficiently recognizable, lead to e.g. one species cannot be determined correctly: the eyes also suffer, and headaches can result from prolonged use. In addition to the quality of the binoculars and the price, the planned application of course also plays a role in the purchase decision. For this, however, it is necessary to be able to evaluate the basic technical data of binoculars. You can find out what the individual data should tell you here.\nTo better understand the technical facts, you should first familiarize yourself with the structure and basic functionality of binoculars. A pair of binoculars is basically nothing more than a combination of two telescopes that are connected to one another by a common focusing mechanism via a bridge. Each of these telescopes consists of an objective (the front lenses), prisms and an eyepiece (the eye pieces).\nThe eyepieces are moved with the help of the focusing wheel (focus = focus) towards or away from the objective. By changing this distance, the focus is on objects at different distances. It is important that the distance between the eyepiece and the objective is identical for both binocular halves. Therefore, the eyepieces of both telescopes are connected to the focusing wheel via a common eyepiece bridge (with some binoculars, each half of the binoculars must be focused separately).\nSpectacle wearers with poor visual acuity in both eyes who want to use the binoculars without visual aids can adjust the distance between the eyepiece and the lens separately from just one half of the binoculars using the so-called diopter compensation. This is done either directly on one of the eyepieces or centrally on the focusing wheel.\nThe prisms ensure that the image is not “upside down” and mirrored. Through various diversions, they also shorten the length of the binoculars.\nThe basic data in the name designation of the binoculars:\nMagnification and lens diameter\nThe first value – the magnification – is the degree by which an object appears larger or closer than when observed with the naked eye. When using 10×42 binoculars, for example, the object appears 10x closer to you than when observing without glass. Only the eyepieces are responsible for the degree of magnification. A glass with a high magnification does not have to be large! Magnifying binoculars is perhaps the most misunderstood feature. High magnifications can be useful, but the magnification itself is not a criterion for the quality, image quality or detail recognition ability of binoculars! The lens diameter, the glass material, the coating and the quality of the overall optics determine the ability to resolve small details. The disadvantages of binoculars with a high magnification are: it is very difficult to produce a calm image over a long period of time during observation and the field of view is relatively small. For free-field observations, we therefore only recommend magnifications up to a maximum of 10 times, actually 8 times is actually the better choice!\nThe second value, here 42, describes the diameter of the objective lenses (front lenses) in mm. The larger these are, the more light can enter the glass and the brighter the image appears (and the larger and heavier the binoculars become). One also speaks of the entrance pupil. The light intensity of binoculars (usually given as the twilight factor) and the size of the exit pupils result from the lens diameter and magnification.\nThe exit pupil describes the size of the image point (in mm) that hits the eyes at the end of the binoculars facing you, the eyepieces. The larger the exit pupil, the brighter the image appears. The exit pupil is the most important and easiest to compare indicator for the twilight performance of binoculars.\nYou should be able to see the exit pupils as a sharply delineated bright circle from a few cm away (a soft edge indicates poor quality). You can calculate the size of the exit pupils by dividing the lens diameter by the magnification. The exit pupils of a glass with the data 10×42 have a diameter of 4.2mm.\nHow useful a large exit pupil is depends, among other things, on the eyes and the age of the observer, because the ability of the pupils of the human eye to enlarge in the dark decreases with age: while the pupils of a young observer still have a diameter of up to can assume to 7mm, the maximum expansion is limited to only 5mm for a 50-year-old. For example, the eyes of an older nature lover can no longer fully use the light from a 6.5mm exit pupil if the pupils of his eyes are only 5mm large. A (then lighter) glass with smaller exit pupils would be a more sensible purchase because it does not “waste” light.\nThe exit pupil distance indicates how far away your eyes can be from the eyepieces without losing sight of the complete field of view of the lens.\nWith most binoculars, the distance between the eyes and the eyepieces can be adjusted by eyecups, which means that the binoculars can also be used with glasses. So that binoculars are really suitable for glasses wearers, the most important thing is that the exit pupils are moved as far back as possible (optimally 15-20mm). This ensures that the focused image is not already shown in front of the eyes. Here one speaks of real glasses eyepieces.\nIn addition to the traditional slip-on rubber eyecups, some binoculars now have more robust plastic eyecups that can be pushed in or out or twisted. When using glasses, the eyecups are retracted or turned inside out.\nNot to be confused with the exit pupil distance!\nThis is the distance between the two eyepieces, more precisely: the exit pupils of the two eyepieces. The pupil distance can be adjusted by “kinking” the binoculars at the joint between the two binocular halves and thus adapted to every face shape (the user’s eye relief).\nField of view\nThe size of the field of view is usually given in m at 1000m or as an angle. If the field of view is e.g. 118m / 1000m so you can see a 118m wide picture in a kilometer distance. You can easily calculate the size of the field of view by multiplying the angle by 17.45. You can calculate the angle accordingly by dividing the size of the field of view by 17.45.\nThe size of the field of view depends on the interplay between magnification and lens diameter and the construction of the binoculars. With the same construction, the size of the field of view decreases with increasing magnification, while larger lenses, on the other hand, enlarge the field of view.\nThe larger the field of view, the easier it is to survey a large area or to track a moving object.\nThe twilight factor serves as a standardized value for comparing the performance of optical devices with regard to the detail recognition, especially under poor lighting conditions\nThe twilight number is calculated from the square root of the product of magnification and lens diameter. So with 10×42 binoculars: 12×50 binoculars have a twilight factor of 24.5. The whole thing then means arithmetically that with 10×42 binoculars (twilight number 20.5) you can still see an object at a distance of 205m, with 12×50 binoculars (twilight number 24.5) you can still see them at a distance of 245m. The twilight factor of the binoculars alone is not sufficient to assess the twilight performance of binoculars; the size of the exit pupils is also used for this.\nFocusing area / close focus\nThe design-related options do not allow binoculars to focus at distances from 0 meters to infinity. In order to be able to see from a long distance, which is the primary task of binoculars, the possibility of close focus is limited to a few meters. If, for example, a pair of binoculars has a close-up range of 3.25 meters, you can no longer focus on objects that are closer. The close-range data of binoculars mainly play a role for those who like small and close objects, e.g. Butterflies, want to watch. However, the close range should not be too small in many other applications either, think e.g. to a bird by the wayside! For others, on the other hand, the close-up area plays a subordinate role, here a glass with Fix-Focus may be more comfortable:\nFix focus: Some binoculars do not have a focusing device at all. They are set once and are then always in focus from a certain close range to infinity. Here, however, the close-range limit is very high (often around 20 meters). Such glasses are therefore mainly recommended for landscape exploration, at sea or e.g. for the observation of big game. Terms such as “Sports-Auto-Focus” (Steiner) or simply “Auto-Focus” are often used as synonyms for the fix focus. However, these terms are misleading, since this system has nothing to do with autofocus as known from cameras etc. (distance measurement or the like and motorized focusing).\nAnother focus variant is the separate focusing of both eyepieces. This system is mainly used for cheaper glasses for “harsh conditions”, since water and dust tightness is very easy to achieve.\nPrism systems of the binoculars\nThe most frequently used prism systems are the more modern roof edge and the classic Porro prism system.\nPorro binoculars (named after the Italian inventor Ignazio Porro) can be recognized at first glance by the fact that the lenses are much further apart than the eyepieces. In addition to this disadvantage in terms of compactness, there is also a small advantage in the imaging performance: The larger distance between the lenses makes the image appear more stereoscopic (better 3D representation).\nLenses and eyepieces form a line in roof prism binoculars. This system is more complex to construct, which usually also means a higher price. However, the result is a much more compact design. Only under the roof edge glasses are there those with real inner focus.\nInner focusing for Porro prism binoculars\nthe eyepieces are connected to each other by a bridge that can be moved back and forth by turning the focusing wheel. However, this eyepiece bridge is very fragile. At the slightest bend, the distances between the two eyepieces and the objectives no longer match. The result is two differently sharp images.\nMost roof prism glasses, however, have an inner focus. The focus (focusing) is done by moving lenses inside the device. There are no moving parts on the outside of the glass. The mechanics are thus protected. Only with this system can real waterproofness be achieved without any problems.\nBest and easiest to implement with roof prism binoculars. Devices with a Porro system are much more complex. Options include sealing with O-rings and filling with nitrogen to prevent the optical elements from fogging up inside the device. The whole works so well with the corresponding effort that you can e.g. can even go swimming with a Leica glass!\nBinoculars – types of glass, finishing and surface coating\nOptical systems refract light of different colors (wavelengths) to different extents. If you only used simple window glass for the construction of binoculars, the result would be an image with an unsightly variety of color borders.\nThis phenomenon can be almost completely eliminated by using special types of glass and coatings. Without this processing, the image quality, especially in the case of roof edge glass (which makes this system again more complex and expensive) would leave a lot to be desired.\nAnother important refinement of the optical glasses is the anti-reflective coating on the outer surfaces of the lenses and the coating of all glass / air surfaces:\nConventional lenses and prisms have the property of reflecting part of the incident light. There is a loss of light and a reduction in the contrast due to stray light. By coating the lenses (vapor deposition of a reflection-reducing mineral layer), reflections are considerably reduced and the light transmission is increased. Fully coated binoculars allow approx. 60% more light into the beam path compared to non-coated glass. The light intensity is further increased by using special coatings (UV coating, multi-layer coating etc.). So modern glasses let in up to 95% of the incident light!…","domain":"optical_engineering"}
{"url":"https://fashionstylecool.com/fashionstylecool-7/","date":"2023-02-02T21:17:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500041.18/warc/CC-MAIN-20230202200542-20230202230542-00649.warc.gz","language_score":0.858142614364624,"token_count":189,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__144319601","lang":"en","text":"For more about their differences, please see the following table What’s more, in the data center fiber infrastructure, the patch panel has to be changed to accommodate MTP cables. This would cost more than LC connectors and regular single mode fiber cables. Besides, it’s not easy to clean MTP connectors. So coarse wavelength division multiplexing is more profitable and popular for 40GBASE-LR4 QSFP+ link.\nFor 40GBASE-LR4 QSFP+ transceivers, both coarse wavelength division multiplexing link and parallel single mode link can reach the transmission distance of 10 km. 40GBASE-LR4 CWDM QSFP+ transceivers use a duplex LC connector via 2 optical sm fibers. And 40GBASE-LR4 parallel single mode QSFP+ transceivers use an MTP/MPO fiber ribbon connector via 8 optical sm fibers.","domain":"optical_engineering"}
{"url":"http://www.china-chaircover.com/embroidery-table-cloth/38045823.html","date":"2017-10-23T11:39:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825900.44/warc/CC-MAIN-20171023111450-20171023131450-00625.warc.gz","language_score":0.8234644532203674,"token_count":1621,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__302099283","lang":"en","text":"Laser CNC Cutting CO2 Laser Cutter For Sale\n|Terms of Trade:||FOB,CFR,CIF,FCA,CPT,CIP|\n|Min. Order:||1 Set/Sets|\n|Delivery Time:||7 Days|\n|Place of Origin:||China|\n|Certificate:||CE / ISO|\nModel No.: VF-1610F\nType for Cutting Machine: Laser Cutting Machine\nType for Fold-bending Machine: CNC Fold-bend Machine\nCertification: CE, ISO 9001:2000\nType for Pipe and Tube Bending Machine: Electric Hydraulic Pipe Bender\nLaser Power: 60w/80w/100w/120w/150w\nPositioning Accuracy: ≤ ± 0.01mm\nSupport Software: CORELDRAW/PHOTOSHOP/AUTOCAD/All Kinds Of Clothing\nSupport Format: PLT,AL,BMP,DST,DXF,DWJ , Ect.\nType: VF - 1610\nWork Area: 1600×1000mm\nCutting Speed: 1-30000mm/min\nEngraving Speed: 1-60000mm/min\nVF - 1610F Laser CNC Cutting CO2 Laser Cutter For Sale\nMachine use RECI laser tube, working life is 10000 hours. Ruida or Leetro control system, Hiwin square rails and high quality belt transmission. USB interface can support data transmitting to be quickly finished. Lens and mirror imported from Singapore Transmit files directly from CorelDraw, AutoCAD, high-speed USB2.0 interace output can support off-line working. Working resume from power break point when power on. Electrical drive up-down table, rotary device, red dot spot, vacuum, etc are to option.\nReal silk fabrics,cotton fabric, decorative fabrics,polyester fabrics, chemical fiber fabrics, felt, pure ramie fabrics, genuine leather, artificial leather,decorative leather,soft leather, rubber, acrylic, wood, paper and all kinds of garment accessories and so on.\nGrilles paper cutting, clothing, leather, staff toys, luggage, medical, leather toys, computer embroidery cutting, cloth art crafts, felt, paper products industry, etc..\n| Type || 1610F |\n| Laser Power || 60w/80w/100w/120w/150w |\n| Work Area || 1600*1000mm |\n| Cutting Speed || |\n| Engraving Speed || |\n| Positioning Accuracy || |\n≤ ± 0.01mm\n| Support Software || CORELDRAW/PHOTOSHOP/AUTOCAD |\n| Support Format || DST/PLT/BMP/DXF/AL ect. |\nQ: How long is the delivery time ?\nA: For standard machines, it would be 7-10 days; For non-standard machines and customized machines according to client s specific requirements, it would be 15 to 30 days.\nQ: How to arrange shipment of the machine ?\nA: We will arrange shipment for you for FOB or CIF price. Clients need to arrange shipment by themselves or their agents.\nQ: How about Sales Service ?\n1. We will provide you with relevant technical support and product industry information within half a working day.\n2. Welcome you at any time to visit our company site visits, we will provide you with free samples and Other related facilities.\n3. Factory direct sales, customized any models.\n2. Hand in charge of the whole process to pay the entire process, the service is also productivity.\n3. Free installation, commissioning and operation, maintenance personnel training.\n2. Free control software upgrade, upgrade board, and related functions to enhance the service.\n3. Machine free warranty for one year, life-long maintenance. Lens, laser tube free of charge for six months, except for man-made damage.\n4. 24 hours outside the Chinese border to provide telephone technical support or directly from the country after sales offices, agents Services\nGuangdong VIFA Laser Technology Co., Ltd. is a high-technology laser surgery as a guide, set design, development, manufacturing as one of the laser equipment and accessories professional production companies. Sophisticated equipment company, factory in strict accordance with ISO9001: 2000 quality system independent production. Equipment manufacturing speed and quality ranks with the industry-leading position.\nThe company is located in Dongguan, Guangdong Province, covering 30,000 square meters. Founded in 1998, pre-order for each laser equipment manufacturers to provide high-quality laser machine parts for the main business projects, having taken advantage of a strong independent laser machine parts into the laser machine manufacturing industries. At present products have been sold to more than 70 countries and regions. Especially since 2013, the company based on customer demand at home and abroad, expanding the processing capacity of laser equipment, high-tech laser absorption of scientific research personnel, research and development to produce 17 kinds of new laser equipment, basic to effectively solve a variety of non-metallic materials difficult processing problems. Achieve a number of independent intellectual property rights owned laser cutting and engraving technology. The company ranks among the leading Chinese manufacturer of laser equipment ranks.\nVIFA Laser Main products: CO2 laser cutting machine, CO2 laser engraving machine, CO2 laser cutting machine camera, linear guide laser machines, automatic lifting rotary engraving laser machine, laser machine screw, automatic feeding laser cutting machine, automatic large format laser cutting, laser die cutter headed for machines, laser marking machine, CO2 laser marking machine, fiber laser marking machine, laser cutting machine burning flowers fabric, PU leather laser cutting machine, acrylic plexiglass laser engraving cutting machine, laser engraving rubber sheet and Other comprehensive wealth of laser equipment. Support various types of customized non-standard laser equipment (function, color, size, shape and so can be customized).\nVIFA laser equipment widely used: leather leather, apparel fabrics, wood products, stone, glass, furniture making, model making, advertising, gifts, plastic, rubber, printing and engraving, packaging paper, decoration, metal materials , electronics, electrical, instrumentation, hardware, auto parts and Other fields.\nAnd the era of convergence, in early 2015 the company launched the network marketing - \"factory outlets, cut channels, sharing client.\" Give customers the best price to buy the most suitable machine. Growing together with customers, to provide the community with excellent products and services. VIFA electromechanical: outstanding laser equipment and accessories supplier!\n- Company Name: Guangdong ViFa Laser Technology Co., Ltd.\n- Representative: Xuefeng Zhou\n- Product/Service: Laser Cutting Machine , Laser Engraving Machine , Laser Cutting Bed , Laser Marking Machine , Laser Equipment Parts , CNC Cutting Machine\n- Capital (Million US $): 10000000RMB\n- Year Established: 2013\n- Total Annual Sales Volume (Million US $): US$5 Million - US$10 Million\n- Export Percentage: 31% - 40%\n- Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million\n- No. of Production Lines: 15\n- No. of R&D Staff: 5 -10 People\n- No. of QC Staff: 5 -10 People\n- OEM Services Provided: yes\n- Factory Size (Sq.meters): 1,000-3,000 square meters\n- Factory Location: Building A,Changming Changmao Industrial Park,Liu Yong Wei Community ,Wanjiang Area\n- Contact Person: Ms. ying zhou\n- Tel: 86-0769-28826357\nPremium Related Products","domain":"optical_engineering"}
{"url":"https://www.venenzentrum-am-see.ch/en/endovenous-laser-ablation-elves-radial/","date":"2023-03-28T04:58:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948765.13/warc/CC-MAIN-20230328042424-20230328072424-00551.warc.gz","language_score":0.8855569958686829,"token_count":174,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__238374909","lang":"en","text":"Endovenous Laser Ablation (ELVeS radial™)\nAt the beginning of the century, thermal ablation using laser energy caused more side-effects than the use of radiofrequency. However, Biolitec® has introduced a new type of diode laser with a wave length of 1470 nm and a radial (360°) emission of laser light, providing a significantly improved treatment outcome, now similar to radiofrequency.\nAn ELVeS Radial 2ring™ fibre is preferred for the treatment of diseased saphenous veins, whereas the slim™ fibre is designed to treat superficial venous reflux on perforator veins.\nIn our clinic, laser is used preferentially for thermal ablation of short refluxing vein segments, for example in the treatment of recurrent varicose veins.","domain":"optical_engineering"}
{"url":"http://halloween-costumes.spirithalloween.com/spirithalloween/Laser-Light-Show","date":"2014-07-24T19:21:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-23/segments/1405997890773.86/warc/CC-MAIN-20140722025810-00231-ip-10-33-131-23.ec2.internal.warc.gz","language_score":0.8305026292800903,"token_count":101,"dump":"CC-MAIN-2014-23","global_id":"webtext-fineweb__CC-MAIN-2014-23__0__123033187","lang":"en","text":"Laser Light Show\nThe incredible Laser Jet projects red and green beams while creating a crazy kaleidoscope light show. This small, portable and light-weight device is very versatile. It's like having an instant nightclub wherever you go!\nRelated Products: Laser\nPut on a show and leave your guests in awe when you entertain using this Laser Star Fog Machine. This amazing fogger combines laser lights and fog to create a one of a kind display!\nEgg Harbor Township, NJ 08234","domain":"optical_engineering"}
{"url":"https://www.flashtechusa.com/led-1/fog-light-1/bulbs/smd-2","date":"2018-12-11T08:03:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823588.0/warc/CC-MAIN-20181211061718-20181211083218-00558.warc.gz","language_score":0.9696218967437744,"token_count":135,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__40535835","lang":"en","text":"SMD LED stands for surface mount LED. Specifically, it's a light-emitting diode that is mounted onto and soldered onto a circuit board. An SMD LED is quite small since it has no leads or surrounding packaging that comes with a standard LED. SMD LED also has a wide viewing angle, thanks to the fact that it does not have the standard LED's epoxy enclosure that focuses the beam. The SMD LED gives off very little heat. It also has a low voltage and current requirements. Like a standard light emitting diode, a surface mount LED gives off almost no heat. It also typically has similar low voltage and low current requirements.","domain":"optical_engineering"}
{"url":"http://huntingrangefinderlaser.com/en/visionking_6x25_laser_range_finder_outdoor_hunt_golf_rain_600m_distance_measure.html","date":"2021-09-21T13:52:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057225.38/warc/CC-MAIN-20210921131252-20210921161252-00683.warc.gz","language_score":0.8900081515312195,"token_count":345,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__96467205","lang":"en","text":"Visionking 6x25 Laser Rnage Finder. Attention: Our trade mark \" Visionking\" has been registered in European Union!\nThis High-tech professional Laser rangefinder Telescope is able to rapidly and accurately measure the range of the target by emitting invisible, eye safe, and infrared energy pulses. Apart from the advanced technical property, the device is superior to the similar products on account of it's compact, light and artistic design. Item 6x25 SCH range finder. Field of View at 1000 m 122m at 1000 m:122 yad at 1000yard. Distance measured 15 m to 600 m(for vertical object can measure further).Accuracy Normal condition +/- 1 m +/- 0.1%. Power Source CR2 3V battary(not include).\nMeasurement Pattern Semiconductor laser measurement(harmless for eyes). Laser Peak Output Power 33W max. Antomatic shut-off after 10 seconds unattended. A Visionking 6x25 range finder; a soft carrying case.\nPlease give us the opportunity to reasonably rectify in a reasonable amount of time, Thank you very much! We accept return within 30 days after consumer receive item.\nWe are Visionking Optical Technology CO. If you are interesting in our products, please Check out my other items. The item \"Visionking 6x25 Laser Range Finder Outdoor Hunt Golf Rain 600m Distance Measure\" is in sale since Wednesday, October 14, 2020.This item is in the category \"Sporting Goods\\Hunting\\Scopes, Optics, Lasers\\Range Finders\". The seller is \"visionking-uk\" and is located in SHENZHEN. This item can be shipped worldwide.","domain":"optical_engineering"}
{"url":"https://laserstakes.com/installation.html","date":"2021-10-20T22:39:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585353.52/warc/CC-MAIN-20211020214358-20211021004358-00135.warc.gz","language_score":0.8814868927001953,"token_count":331,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__81617153","lang":"en","text":"Free GROUND shipping on ONLINE orders over $199! No code necessary.\nFree UPS Ground shipping for online orders over $199 USD when shipping within the contiguous 48 states. Minimum is before taxes and shipping.\nLaser Stakes mount in the ceiling of covered and enclosed arenas. They cannot be used in outdoor arenas without an overhead structure. One laser is required for each barrel, pole, or electric eye that will be positioned by the Laser Stakes system.\nThe lasers attach to metal supports in the arena ceiling using a strong magnet (other attachments options are available). The adjustable mount allows the laser to be pointed precisely at the target on the arena floor.\nPower for all lasers is provided by a single AC adapter. Low-voltage DC power runs from the AC adapter to the closest laser, and then from laser to laser to laser (see illustration below).\nConnections are made using readily available 18 gauge speaker wire, lamp wire, or similar two-conductor cable. You can purchase this wire at your local Home Depot or Lowes.\nWires attach to each Laser Stake with an easy to use terminal block. The terminal block provides room for an incoming wire pair and an outgoing wire pair. Wiring is polarity-independent meaning you don't have to worry about \"plus\" and \"minus.\"\nFor additional information, you can view the user's manual for laser stakes here.\nTypical Wiring Diagram\nThis illustration shows wiring for three Laser Stake units (one for each barrel). The terminal block is on the back side of the laser near where the unit attaches to the adjustable mount.","domain":"optical_engineering"}
{"url":"https://schwarzercardiotek.com/produkt/produktansicht-21","date":"2019-02-19T22:07:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247492825.22/warc/CC-MAIN-20190219203410-20190219225410-00224.warc.gz","language_score":0.8499162793159485,"token_count":119,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__86356990","lang":"en","text":"EP-TRACER 2 Stationary\nEP recording system with built-in stimulator\nThe EP-TRACER 2* Stationary setup generally has two high resolution displays inside the EP lab and two in the control room. One display shows the real-time signals, while the other displays the EP-TRACER special presentation modes.\nThe physician handling the catheters gets the same visual information as the operator at the control desk.\nThe EP-TRACER device is installed below or close to the patient table using a fiber optic connection to the control desk PC.","domain":"optical_engineering"}
{"url":"https://tattooremovaluk.com/our-machines/","date":"2023-12-07T23:56:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100705.19/warc/CC-MAIN-20231207221604-20231208011604-00491.warc.gz","language_score":0.9017060399055481,"token_count":630,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__312902983","lang":"en","text":"TATTOO REMOVAL EQUIPMENT\nUnlike other laser machines which pulse lasers at a much lower frequency, our state-of-the-art laser system uses innovative laser frequencies which rapidly pulses laser energy into the skin. This new method of laser removal is significantly better for the health of your skin as the laser energy causes the ink particles in a tattoo to break and disperse more so than any other laser technology used for tattoo removal, causing very little heat build-up which can lead to burning.\nOlder laser machines use photo-thermal energy to target the tattoo, which is slower, requires more sessions and in most circumstances can’t remove colour tattoos.\nOur laser system uses photo-mechanical energy combined with ultra-short bursts which are more energy-efficient and requires less heat. This process means a tattoo can be removed in significantly fewer sessions, cause little to no damage to your skin and allows us to remove all colours.\nThe different frequencies and wavelengths also allow us to remove almost all tattoo colours, whereas older and more traditional laser systems are unable to remove colour tattoos. The Pico breaks up using pressure waves creating smaller particles which is easier for body to remove.\nThe Q-Switched neodymium YAG Laser is a crystal which is used as a laser medium. The neodymium ion provides the laser activity and the Nd: YAG laser carries the capability of reaching much deeper layers of skin as compared to other types of lasers. The Q-Switched neodymium YAG Laser is perfect for removing tattoos, age spots, sunspots, and freckles. The technology is also used for skin rejuvenation, oil control, and skin pore improvement. YAG laser can be used for hair removal in any location.\nLight blasting principle is used here when the high peak energy pulses of light of specific wavelengths get absorbed by the pigments in the skin. An instantaneous blast shatters the pigmentation particles into fragments which are eliminated from the body by the lymphatic system.\nWith adjustable wavelengths, brightness and zoom spot size, Q Switched neodymium YAG Laser is a safe and effective technique to use. Advantages include a variety of wavelengths, high peak power and a perfect aiming beam with a high-quality laser source. These laser techniques carry the unmatched ability to target skin pigment.\nThe Newest Generation of Cryotherapy System unlike other cooling methods, such as contact cooling, cryogen spray or icepacks, the Cool plus can cool the epidermis before, during and after the laser energy has been applied, without interfering with the laser beam. The Cool plus decreases the skin temperature quicker, with less risk of skin burns and keeps a constant dosage throughout the entire treatment time.\nThe cool plus features cooled air for efficient pain treatment, swelling reduction and muscle re -laxation. The system enables Cryotherapy with precise placement and at a constant dosage every time. The device uses no consumables and delivers high power. This enables a quick decrease in superficial skin temperature, while maintaining the ability to operate all day.","domain":"optical_engineering"}
{"url":"https://detectronic-de.com/durchflussmessung-fuellstand-wasserqualitaet-einstau-abschlag/water-quality-monitoring/suspended-solids-2/","date":"2022-07-07T14:21:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104692018.96/warc/CC-MAIN-20220707124050-20220707154050-00030.warc.gz","language_score":0.8731487393379211,"token_count":871,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__224184017","lang":"en","text":"Für alle Anwendungen in Abwasser, egal ob Zulauf, Schlamm oder Ablauf.\nA single sensor with a large dynamic range which utilises measurement technology that eliminates the need for a “zero” and also eliminates the effect of background light. For multiple measuring ranges, the suspended solids sensor can monitor turbidity and suspended solids from 2 NTU (1mg/l) to 8%* solids.\nThe sensor uses lifetime optical technology to provide a stable, reliable low-maintenance sensor with no moving parts and no consumables. The sensor determines the suspended solids concentration or the turbidity in the water using a measurement of the backscattered light.\nEach sensor is fitted with an infra-red LED emitter light source and two matched photodiodes detectors for making the measurements. Having two detectors, positioned at different distances from the light source, allows the sensor to be used over a wide range of suspended solids concentrations.\nThe detectors are positioned to detect backscattered light (light that is scattered by <90°). By measuring back scattered light, the sensor can be used to detect low and high concentrations of solids. The ORAKEL takes readings at four different light levels and uses the gradient between the readings to produce the sensor output, allowing for more accurate measurements of suspended solids and turbidity.\nThe sensor can be mounted on the end of a pole for dip mounting in the channel or tank, or inserted into a pipe via a valve which allows for retraction and removal of the sensor without shutting down the process.\nThe sensor is fitted with a cleaning nozzle to keep it clean. This can be used to clean the optical windows with a jet of water. The procedure can be programmed to be automated at predefined intervals.\nCalibration for turbidity measurements or measurements of samples with low concentrations of solids is very easy only requiring a single calibration sample. This sample can either be a reading from another method or a suitable standard.\nThe ORAKEL control unit calibrates the sensor by reducing the light output through four stages, taking measurements at each. This process provides an accurate and reliable zero and span without the requirement to use a ‘0’ NTU/solids sample.\nCalibration of the sensor for measurement of samples with high concentration of solids uses a multipoint procedure. Up to 5 calibration points can be used to give accurate performance across a wide range of sample concentrations.\nSelectable g/l, mg/l, ppm, ppt or % (suspended solids) NTU or FNU (turbidity)\n<2% of measured value or 0.01g/l or 0.8 NTU (whichever is greater)\n<1% of measured value or 0.001g/l or 0.8 NTU (whichever is greater)\nLimit of detection:\n0.001g/l or 2.4 NTU\nUp to 0.0001g/l or NTU\nT90 ≥ 10sec (adjustable based on averaging)\nIR LED (860nm)\nApproximately 1kg (35oz)\n10 bar (145psi) [maximum]\nMounting thread (for dip installation):\nMax. power consumption:\n70mA at 12 VDC\n6m (20ft) as standard. (Talk to us if you need a longer length)\n316 Stainless steel, sapphire\n*8% in typical municipal waste water slurries. This value will vary depending on the optical properties of the sample.","domain":"optical_engineering"}
{"url":"https://samarthpacktech.com/bifacial-solar-cells-could-produce-more-energy-at-lower-costs/","date":"2023-12-03T03:49:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100484.76/warc/CC-MAIN-20231203030948-20231203060948-00512.warc.gz","language_score":0.9363107085227966,"token_count":449,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__30240350","lang":"en","text":"Bifacial solar cells have emerged as a promising technology that has the potential to produce more energy at lower costs compared to traditional solar cells. This innovative design allows solar panels to capture sunlight from both sides, maximizing energy generation and efficiency.\nThe conventional solar cells predominantly capture sunlight on one side, limiting their ability to utilize the light reflected from the ground or surrounding surfaces. Bifacial solar cells, on the other hand, are designed to absorb sunlight from both the front and back sides, making them more efficient in converting solar energy into electricity.\nOne of the primary advantages of bifacial solar cells is their ability to harness additional light reflected from the ground, especially in environments with high albedo, such as snowy landscapes or light-colored surfaces. This reflected light, which is typically lost in traditional solar cells, significantly enhances the overall energy yield of bifacial panels.\nMoreover, the cost-effectiveness of bifacial solar cells stems from their higher energy production per unit area. As these cells generate more electricity, fewer panels are required to achieve a desired energy output, resulting in reduced installation and balance-of-system costs.\nBifacial solar panels also offer flexibility in installation, allowing them to be mounted vertically, horizontally, or even as canopies, maximizing their exposure to sunlight. This versatility makes them ideal for various applications, including rooftop installations, ground-mounted arrays, and solar farms.\nAs the demand for renewable energy continues to grow, the adoption of bifacial solar cells is expected to increase, leading to advancements in manufacturing processes and further cost reductions. With research and development ongoing in the field, the efficiency and cost-effectiveness of bifacial solar cells are expected to improve even further in the future.\nIn conclusion, bifacial solar cells represent a significant advancement in solar technology, promising to produce more energy at lower costs compared to traditional solar cells. Their ability to capture sunlight from both sides, coupled with the utilization of reflected light, results in higher energy yields and increased cost savings. As the world moves towards a more sustainable energy future, bifacial solar cells play a vital role in driving the adoption of solar power and contributing to a greener and cleaner environment.","domain":"optical_engineering"}
{"url":"https://www.jansum-electronics.com/news-show-1033470.html","date":"2023-06-03T07:51:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649177.24/warc/CC-MAIN-20230603064842-20230603094842-00472.warc.gz","language_score":0.9006471633911133,"token_count":292,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__18224125","lang":"en","text":"PON (Passive Optical Network) and Wi-Fi are two different technologies that can be used together to provide high-speed internet access to homes and businesses.\nPON is a fiber-optic network technology that delivers data through optical fiber cables. It is called passive because it does not require active electronic components, such as amplifiers, to transmit the data. Instead, the data is transmitted through the fiber optic cables using passive splitters.\nWi-Fi, on the other hand, is a wireless networking technology that uses radio waves to transmit data over short distances.\nTo provide PON+WIFI solutions, internet service providers (ISPs) typically install a PON network in the area and then use a router or gateway device to convert the optical signal into a Wi-Fi signal that can be transmitted wirelessly to users' devices.\nOne advantage of PON+WIFI solutions is that they can provide high-speed internet access to areas where traditional broadband technologies may not be available or where the existing infrastructure is outdated or insufficient. PON can provide fast and reliable internet access, while Wi-Fi allows users to connect to the network wirelessly, providing more flexibility and convenience.\nOverall, PON+WIFI solutions are becoming increasingly popular as demand for high-speed internet access continues to grow, and as more people rely on wireless devices to connect to the internet.","domain":"optical_engineering"}
{"url":"https://tt.rvackisavezbeograda.com/5755-light-as-a-driver-for-nanomachines.html","date":"2021-05-13T03:48:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243992721.31/warc/CC-MAIN-20210513014954-20210513044954-00079.warc.gz","language_score":0.9547613859176636,"token_count":542,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__120137049","lang":"en","text":"Engineers from Yale University, United States, have shown that it is possible to harness the force of light to drive nanomachines. The result of their research could lead to fully optical mechanical devices made of nano-sized photonic circuits.\nThe work, published in the journal Nature, successfully combines two important emerging fields of research: nanophotonics and nanomechanics; and it could make it possible to manufacture tiny mechanical and optical parts on the same silicon chip.\nAlthough the force exerted by photons is too weak to be felt in everyday life, it can be greatly enhanced by concentrating the light into nano-sized photonic circuits.\nUntil now, the force of light has only been used to move small objects using a technique called \"optical tweezers.\" These tweezers work by catching micrometer-sized objects near the focus of a laser beam. The technique allows grabbing objects and moving them to another place using only light. Now, Hong Tang and his colleagues have taken this concept a step further, showing that optical forces can be harnessed to move an entire semiconductor device.\nThe researchers showed that as concentrated light passes through a separate nanomechanical photon resonator, which also acts as a waveguide for the light, the resonator folds. The optical force causing this displacement can be measured as the change in coupling between the resonator and the underlying substrate. The force (which can be as high as 8 pN per micrometer per milliwatt) would be large enough to move nanoscale machinery on a chip, Tang and his colleagues note.\nThe optical force produced by the new method actually acts perpendicular to the direction of the light beam; something different from what happened in previous systems, in which the optical force was parallel to the direction of light propagation. This means that the configuration of mirrors or cavities, difficult to implement in systems at scale of integrated circuits, is no longer necessary. And that's not all: the force of light is inherently fast and can therefore direct nanomechanical devices at very high frequencies, possibly exceeding the current milestone of a few gigahertz, Tang notes.\nAccording to him, the magnitude of the force is roughly the same size as other forces commonly used to actuate nanodevices, such as magnetic or electrostatic forces, but without the need for external fields. \"All this implies that, in the near future, it will be possible to develop a fully photonic nanoelectromechanical system, with integrated optical detection and activation.\" On the other hand, all optical devices would also require much less energy than those that use electrons.\nSource: Nanotech Web","domain":"optical_engineering"}
{"url":"http://br.prysmiangroup.com/br/business_markets/markets/fibre/products/multi-mode/","date":"2017-09-21T01:33:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818687592.20/warc/CC-MAIN-20170921011035-20170921031035-00665.warc.gz","language_score":0.9012447595596313,"token_count":183,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__70568924","lang":"en","text":"Prysmian Group’s multimode optical fibres for the Datacom, enterprises and premises cabling industries are based on our Plasma-activated Chemical Vapour Deposition Process (PCVD), acknowledged worldwide as offering the best core profile accuracy in multimode fibres.\nThe result is a complete portfolio covering the full range of application standards, from OM1 and OM2 optical fibres up to high data rate OM3 and OM4, all supported by dedicated customer service that guarantees premium quality of deliveries. All multimode optical fibres produced by Prysmian Group are coated with the microbending reducing DLPC9 coating. Our products cover Local Access Networks (LAN), data centers and server farms, central offices, and Storage Area Networks (SAN).\nFor all these different fibre types, Prysmian Group associate its fully dedicated customer service, which is warrant for premium quality of deliveries.","domain":"optical_engineering"}
{"url":"http://www.photoimagenews.com/lens.htm","date":"2014-10-21T10:18:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1413507444339.31/warc/CC-MAIN-20141017005724-00032-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.9049922823905945,"token_count":2416,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__154601791","lang":"en","text":"Making the lens fit the camera\nOK, to answer the burning\nquestion: will the lenses from my old film camera fit any digital camera?\nMinolta XG-1 or other\nmanual focus Minoltas, such as the SRT-101 - no, they won't fit.\nLenses that fit an\nautomatic focus Minolta - Maxxum or Dynax - will generally work on a Sony or\nCanon AE-1 or other manual\nfocus Canons, such as the FT series or F1 - no, they won't fit.\nLenses that fit an\nautomatic focus Canon EOS - Rebel - will generally work on a Canon DSLR.\nPentax K-Series (bayonet\nlenses) - yes, they will fit Pentax and Samsung digital SLRs but they won't\nfocus automatically and they may be a pain to set the exposure.\nNikon F (bayonet lenses) -\nyes, they will fit Nikon digital SLRs but they won't focus automatically and\nthey may be a pain to set the exposure.\nEven if they will fit,\nyou may not want to use old lenses on a new digital camera.\nDigital SLRs mostly have a\nsensor that is smaller than 35mm film. That means that the 28mm lens from\nyour film camera is not a wide-angle lens when used on a digital camera. So\nyou're going to need one of the lenses that usually is included - pretty\ncheaply - with the purchase of a DSLR. Most come with an 18-55mm lens that\ngives a field of view similar to a 28-90mm lens used on a film camera. And\nthey function properly with the new camera, and they focus automatically,\nand some even have image stabilization.\nOld lenses you may want\nto use with a DSLR:\n50mm f1.8 or f1.4 have\nmuch more light gathering ability than the typical zoom lens, so you can\ntake better photos in low light levels. An old 135mm f2.8 or f2.5 lens is a\ngreat \"long\" portrait lens or action and stage lens because of its greater\nI'm talking about high\nquality lenses here - crappy lenses are even crappier when used on a DSLR.\nDigital cameras work best with lenses designed for them, particularly late\nmodel lenses with low internal flare levels.\nBack to the original\narticle, written in 1998\nOne of the reasons our customers buy advanced cameras is to have the option of choosing\ndifferent lenses. Some think that any camera can take any lens, but no! None of the\nautofocus SLR's on the market take lenses designed to fit any other brand.\nIn the older, non-AF SLR, here's a brief rundown on what fits what:\nPentax Screw mount (also called Universal thread, M-42 mount) was actually first\nused on the East German Contax S and D cameras. The basic thread mount fits\n- old Pentaxes (Spotmatic, H-series, S-Series) old Yashicas old Rollei\n- old Mamiya-Sekors and Mamiyas\n- old Ricoh and most older Sears (Tower) cameras\nPentax F and ES had an extra cam for full-aperture metering.\nMamiya MSX and DSX did too, as did some Fujica ST cameras -- but each had that extra cam\nin a different spot!\nWith adapters, screw-mount lenses can be mounted on Rolleiflex SL 35 and still\nhave automatic diaphragm.\nWith a different adapter, they can be mounted on Pentax bayonet, but with no automatic\nWith still different adapters, they can be mounted on Yashica/Contax bayonet, Minolta,\nCanon with non-automatic diaphragm.\nPENTAX M, K BAYONET: (PK mount) Fits Pentax M, K, A series cameras. The earlier\nones are not programmed on Pentax A- and P- series. Fits many Ricoh, Sears, and Chinon\nPENTAX A and PROGRAMMED LENSES will fit all model cameras with Pentax K mount.\nAftermarket models for Pentax bayonet mounts:\nVivitar PK/A/R lenses Will fit all Pentax and Ricoh,\nSigma KPR lenses will fit, and operate in program modes, on all Pentax and Ricoh Program\nManual mount Pentax bayonet lenses will fit and function on autofocus\nPentax cameras, and AF lenses will fit the manual cameras too. The autofocus\nfunction only works when both the camera and lens are an autofocus model, of\n- Nikkor-F fits Nikon through F-2. Nikkormats, Nikkorex F and Ricoh Singlex\n(reportedly Mamiya made the Nikkorex F camera for Nikon\nand possibly also the Singlex models that used the Nikon lens mount.).\n- Late model Nikon reflexes use AI (Automatic Indexing) instead of the meter-coupling\nprong to connect to the light meter. AI lenses were made with the prong as well for full\n- The Series E Nikon lenses didn't even have the prong, so will fit all models but will\nnot couple to the meter of the early ones.\n- Early (non-AI) lenses put on late model cameras will usually fit - but try it gently to\nmake sure the rim doesn't bind against the camera's lens mount. Don't put early lenses on\nan EM, FG, or 4004 or \"low-end\" AF models.\nFuji and Fujica SLR cameras\n- Fuji ST cameras use a Pentax thread-mount lens\n- Fuji STX lenses are a Pentax thread lens with an extra cam for full aperture metering.\n- Fuji AX lenses are a special bayonet mount. With an X-S adapter, thread mount lenses can\nbe used on AX series cameras. They will always have automatic diaphragm operation, and\nwith the X-D adapter will even work in programmed mode. This bayonet\nmount is not the same as the Pentax\nbayonet mount lens.\nEvery lens from the earliest SR-7 fits every SLR camera before Maxxum. MC lenses are\nmeter-coupled. Earliest ones did not couple to the light meter -- they were designed for\nthe earlier SR-1, SR-2 and SR-7.\nMD lenses are capable of programmed operation with X700, shutter priority with XD-5 or\nXD-11. If an MC lens is used in the program mode, exposure will be correct but the\nin-camera display will not work right. The lens must be closed down to its\nsmallest marked aperture for this to work.\nLenses to fit a Minolta MD series can be used on a MAXXUM with the special adapters\nmade by Rokunar and others. The focal length is slightly increased, about 10 %. They're\nreally a weak teleconverter with a Maxxum mount at the back and an SRT mount at the front.\nMirror lenses used on \"ai\" Maxxums, or anything else adapted, will not\nautofocus. Some Minolta Maxxums can't be used at all with non-automatic lenses - check\nwith the Minolta fax-on-demand technical hotline about this.\nSome independent manufacturers lenses that functioned properly with early\nmodel Maxxums won't work with later models. Minolta changed the chip at one\npoint. All Minolta AF lenses should work with all Minolta cameras, except\nthat the 500mm mirror lenses only works with \"better\" Maxxums.\n- Sears cameras have usually used the same lens mount, be it thread or bayonet, as\ncontemporary Pentaxes. Most were made by either Mamiya or Ricoh. Years ago some Sears\n\"Tower\" brand cameras were made by Pentax.\n- At least one Tower camera, the Model 37, used an Exacta bayonet mount!\nCanon FD lenses will fit and work automatically on all AE, A, AV, AL. and T series\ncameras. Also F- 1, FT-B, TL-B, etc. The older FL lenses have the same breech-lock bayonet\nmount, but do not have full-aperture metering pins for the later A and T series cameras.\nEOS lenses work only on EOS.\nKonica had a series of cameras before the Autoreflex that used a different lens mount.\nIt's rarely that you'll encounter one -- Konica was the first company to \"bite the\nbullet\" and make the change in lens mount necessary for full automation. No new\nlenses are available for those older Konicas, though from time to time we run across used\nLess popular lens mounts\nExacta, Petri, Alpa, Topcon, Miranda, Praktica, Leicaflex - each has its own bayonet,\nnot interchangeable with much of anything, not a significant factor in the marketplace.\nExacta lenses can usually be mounted on Topcon focal-plane models but upside-down!\nInterchangeable mount systems:\nSome lenses don't fit directly on any camera without a mount. They are designed so that\nwhen the proper mount is attached, they will fit almost any camera.\n- T-Mount lenses: many pre-set lenses, mirror lenses, slide duplicators and other devices\nthat don't have an automatic diaphragm use a system of interchangeable\n\"T-mounts\". Most T-mounts cost about $15-20. There are some female T-mounts\navailable that allow you to do things like mount a Leica (39mm thread) enlarging lens on a\nbellows for close-up work. Example: the Beseler Dual Mode Slide duplicator uses a T-mount\nat the top, to mount the camera. It uses a female T-mount at the bottom to mount an\nenlarging lens, which is an excellent choice for copying or duplicating slides.\n- T-4 mounts are an interchangeable mount system that allow automatic diaphragm operation.\nVivitar and Soligor made them. Mounts and lenses are interchangeable between the two\nmakers.. T-4 lens adapters were not made for Konica or any shutter- priority system --\nwith the possible exception of Canon (the mount fits, but EE exposure is erratic.) TX is a\nlater system that allows programmed operation and shutter priority. Some TX and T-4 mounts\n- Tamron has had three separate systems:\n- Adapt-a-Matic (adapters for these lenses are no longer available\n- Adaptall-2 (almost the same is Adaptall)\nMost mounts are $40.\nUniswitch adapters from Samigon let you use Pentax screw mount lenses on various\nbayonet mount cameras. None will provide full-aperture metering or even automatic\nReverse adapters let you turn the normal lens of an SLR around, so that you can\ntake sharp extreme closeups. They do not use the automatic diaphragm mechanism, and leave\nthe delicate levers exposed.\nReturn to the Photo/Image News Network Technical Index","domain":"optical_engineering"}
{"url":"http://sudc.kirov-sound.ru/129","date":"2021-02-24T23:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178349708.2/warc/CC-MAIN-20210224223004-20210225013004-00281.warc.gz","language_score":0.8777479529380798,"token_count":2149,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__18686249","lang":"en","text":"Transitions Signature GEN 8 transitions lens tradeshow are a new frontier of performance. Transitions GEN 8 lenses are the best overall photochromic lens*--with better, long-lasting performance adapting to almost any lifestyle. This adjustment naturally enhances and changes image hues, saturation levels, and lightness, allowing artists and photographers transitions transitions lens tradeshow to create natural color changes as well as extreme artistic visions without compromising. But today’s photochromic glasses come in many materials and an array tradeshow of lens colors. 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Photochromic lenses have been around for decades.\nTransition lenses, also referred transitions to as photochromic lenses, are a brand name UV-protected lens that has the ability to change from a clear to a darker color when exposed to sunlight. Normally, HSL tools ignore much of the complexity of color appearance resulting in pixelated or muddy changes and transitions. Transitions ® Signature ® transitions lens tradeshow lenses are the perfect lenses for everyday life. By optimizing the amount of light your eyes receive, Transitions ® lenses help reduce glare, eye fatigue and strain to create more effortless sight.\n-> How to pirate after effects 2017 windows 10\n-> Free after effects globe tech intro template","domain":"optical_engineering"}
{"url":"https://innovationcenter.msu.edu/events/2015-innovation-celebration/2015-innovation-of-the-year-i/","date":"2023-09-28T08:56:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510368.33/warc/CC-MAIN-20230928063033-20230928093033-00257.warc.gz","language_score":0.9090282320976257,"token_count":172,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__191303420","lang":"en","text":"Transparent Solar Technology\nDr. Richard Lunt\nAssistant Professor in the Department of Chemical Engineering and Material Science\nTransparent solar concentrators can be deployed on existing infrastructure to discretely harvest solar energy. Former attempts at transparent photovoltaics have fallen short, coloring or dimming the light that passed through them. Now, new solar materials can be installed on nearly any transparent surface without affecting the incoming light. Small organic molecules within the concentrator can be tuned to absorb only non-visible wavelengths, allowing natural visible light to pass through. Solar power is converted to electricity by thin photovoltaics strips. This technology is a flexible and inconspicuous means of harvesting solar energy that can be integrated onto building windows and mobile electronic displays.\nMSU Technologies is pleased to recognize Dr. Lunt and his team for their research and innovations.","domain":"optical_engineering"}
{"url":"https://www.maxalmonte.com/blog/tag/System","date":"2019-11-12T00:38:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496664469.42/warc/CC-MAIN-20191112001515-20191112025515-00282.warc.gz","language_score":0.8829962015151978,"token_count":266,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__155928469","lang":"en","text":"Much talk and excitement has been building up since Nikon launched 2 mirrorless systems almost 2 week ago. Leaked photos and speculation on what the camera was going to look like and what it will sport in terms of specs was right on point.\n• 30.3MP Full-Frame CMOS Sensor\n• DIGIC 8 Image Processor\n• UHD 4K30 Video; C-Log & 10-Bit HDMI Out\n• Dual Pixel CMOS AF, 5655 AF Points\n• 3.69m-Dot OLED Electronic Viewfinder\n• 3.15\" 2.1m-Dot Swivel Touchscreen LCD\n• Expanded ISO 50-102400, 8 fps Shooting\n• Wi-Fi and Bluetooth, SD UHS-II Card Slot\n• Multi-Function Bar, Dual Pixel RAW\nWhile some vlogs mention no image stabilization on the camera nor lenses I cannot speculate about image quality or stabilization at the moment.\nCanon did put more enphasis on the Lens lineup more than the camera of course by releasing 4 lenses and 3 adaptors for the camera. Each adapter has its own purpose.\na drop in filter adapter for polarizing filter, an ef-eos R mount adapter for connecting old canon glass, and a control ring adapter for settings.","domain":"optical_engineering"}
{"url":"http://www.openvlc.org/home.html","date":"2020-05-30T17:03:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347410284.51/warc/CC-MAIN-20200530165307-20200530195307-00452.warc.gz","language_score":0.8949004411697388,"token_count":249,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__199393218","lang":"en","text":"OpenVLC is an open-source, flexible and low-cost Visible Light Communication System platform. Research and development are conducted at IMDEA Networks Institute, in the Pervasive Wireless Systems group led by Dr. Giustiniano.\nWhat is Visible Light Communication - LiFi? Visible Light Communication (VLC), sometimes also referred to as “LiFi\", uses standard off-the-shelf visible light LEDs to transmit data using the visible light spectrum. VLC is receiving strong attention from the designers of the 5G networks and beyond. VLC can enable new pervasive wireless systems in the context of the Internet of Things.\nOur Mission. The lack of an open-source and low-cost reference platform is hindering the progresses of research and industry in VLC systems. A general-purpose platform would add momentum to VLC and would open up new avenues of VLC research and spark the interest of researchers and engineers. We take an initial step toward this and we design OpenVLC, an open-source Visible Light Communication platform for fast prototyping of new system protocols to build a LiFi network. It runs on a cost-effective yet powerful credit-card-sized embedded board.","domain":"optical_engineering"}
{"url":"https://wordlsnews.com/canon-eos-r100-unveiled/","date":"2023-06-01T06:27:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00321.warc.gz","language_score":0.9016363024711609,"token_count":400,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__151477094","lang":"en","text":"Canon has introduced its latest mirrorless camera, the Canon EOS R 100. The 24.1MP APS-C sensor and Dual Pixel CMOS AF camera comes in a compact and lightweight body.\nThe EOS R100 features a 24.1MP APS-C sensor, several times larger than those found in high-end smartphones, providing a significant improvement in photo and video quality. Not only does this provide flawless colors and stunning detail, but it also gives users the ability to shoot in low-light conditions and get beautiful, authentic bokeh while smoothing out the background, allowing the subject to come into focus. Highlight.\nThanks to the EOS R range’s intelligent autofocus, the EOS R100 has Dual Pixel CMOS AF with fast and accurate subject detection, tracking of subjects’ eyes when using the viewfinder or LCD monitor, keeping up with the action and focusing. issues.\nThe EOS R100’s video performance has improved compared to a smartphone or DSLR camera, delivering 4K 25p video.1, bringing the advantages of the EOS R System to this easy-to-use, entry-level camera. It’s also capable of recording Full HD video at 60fps and 120fps at 720p, which is ideal for smooth slow-motion videos, which is especially useful when getting creative with vacation content. Reliable Dual Pixel CMOS AF also enables face detection and eye tracking when shooting in Full HD.\nMore information on the entry-level Canon EOS R100 can be found on the Canon website at the link below, and the camera will start at $480.\nFiled Under: Camera News, Technology News\nThe latest deals on geeky tools\ndisclosure: Some of our articles include affiliate links. If you buy something through one of these links, Geeky Gadgets may earn an affiliate commission. Learn about our disclosure policy.","domain":"optical_engineering"}
{"url":"https://landsurveyorsunited.com/video/how-to-do-layout-of-a-building-with-co-ordinate-total-station-in","date":"2018-11-14T07:42:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741660.40/warc/CC-MAIN-20181114062005-20181114084005-00243.warc.gz","language_score":0.9287427663803101,"token_count":786,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__212069599","lang":"en","text":"A total station or TST (total station theodolite) is an electronic/optical instrument used for surveying and building construction. The total station is an electronic theodolite (transit) integrated with an electronic distance measurement (EDM) to read slope distances from the instrument to a particular point, and an on-board computer to collect data and perform advanced coordinate based calculations.\nRobotic total stations allow the operator to control the instrument from a distance via remote control. This eliminates the need for an assistant staff member as the operator holds the retroreflector and controls the total station from the observed point.\nMost total station instruments measure angles by means of electro-optical scanning of extremely precise digital bar-codes etched on rotating glass cylinders or discs within the instrument. The best quality total stations are capable of measuring angles to 0.5 arc-second. Inexpensive \"construction grade\" total stations can generally measure angles to 5 or 10 arc-seconds.\nMain article: Distance measurement\nMeasurement of distance is accomplished with a modulated infrared carrier signal, generated by a small solid-state emitter within the instrument's optical path, and reflected by a prism reflector or the object under survey. The modulation pattern in the returning signal is read and interpreted by the computer in the total station. The distance is determined by emitting and receiving multiple frequencies, and determining the integer number of wavelengths to the target for each frequency. Most total stations use purpose-built glass corner cube prism reflectors for the EDM signal. A typical total station can measure distances with an accuracy of about 1.5 millimeters (0.0049 ft) + 2 parts per million over a distance of up to 1,500 meters (4,900 ft).\nReflectorless total stations can measure distances to any object that is reasonably light in color, up to a few hundred meters.\nThe coordinates of an unknown point relative to a known coordinate can be determined using the total station as long as a direct line of sight can be established between the two points. Angles and distances are measured from the total station to points under survey, and the coordinates (X, Y, and Z or easting, northing and elevation) of surveyed points relative to the total station position are calculated using trigonometry and triangulation. To determine an absolute location a Total Station requires line of sight observations and can be set up over a known point or with line of sight to 2 or more points with known location, called Resection (Free Stationing).\nFor this reason, some total stations also have a Global Navigation Satellite System receiver and do not require a direct line of sight to determine coordinates. However, GNSS measurements may require longer occupation periods and offer relatively poor accuracy in the vertical axis.\nSurveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as building corners or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales.\nSurveyors work with elements of geometry, trigonometry, regression analysis, physics, engineering, metrology, programming languages, and the law. They use equipment, such as total stations, robotic total stations, GPS receivers, retroreflectors, 3D scanners, radios, handheld tablets, digital levels, subsurface locators, drones, GIS, and surveying software.\nSurveying has been an element in the development of the human environment since the beginning of recorded history. The\nThis Content Originally Published by a land surveyor to Land Surveyors United Network","domain":"optical_engineering"}
{"url":"http://aljassimstore.com/index.php?route=product/product&path=66&product_id=272","date":"2017-10-18T16:23:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187823016.53/warc/CC-MAIN-20171018161655-20171018181655-00749.warc.gz","language_score":0.814350426197052,"token_count":217,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__74953883","lang":"en","text":"Digital Light G-802A\n1. Digital lights are characterized by the continuous output,\n2. Use E27 daylight bulb, 5400K standard color temperature, accurate light position, high efficiency, low power consumption and high color rendering properties.\n3. They are reliable light source for shooting portraits,fashionable dresses,wedding photos and advertisements.\n4. Radiating angle: 60°.\nDigital light continuous light source with a compact and luminous brightness strong design concept, each has its unique performance and scope of application , lamp and lampshade can be demolished, Reduce the transport volume and cost; light effect and light loss is small, simple operation cost-effective, is the first choice for personal light source. Technical parameters\nRated voltage: AC110V or AC220V\npower cord: 3m\nLamp holder: E27 Threaded bayonet\ngross weight: 2.2kg\nSize: 30 * 30 * 26cm Configuration\n1. Lamp with power cord and Joke = 1 set\n2. Reflector = 1","domain":"optical_engineering"}
{"url":"https://lvenneri.com/blog/TimevariableObservation","date":"2023-11-29T11:20:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100081.47/warc/CC-MAIN-20231129105306-20231129135306-00041.warc.gz","language_score":0.9092100858688354,"token_count":919,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__235041992","lang":"en","text":"Measuring time-varying signals with a single 2D image\nSemiconductor sensors have extended the range of human's ability to sense photons from a mere 400-700 nm to 200-3000 nm. We can measure single photons, and we can measure them with increasingly higher spatial resolution. However, we have more difficulty measuring photons' arrival times. Mostly, we just collect photons in pixels over an exposure and integrate the result. We can take multiple exposures over time, and these are time stamped. But the arrival times of photons within an exposure are not measurable using current techniques. The standard approach to get some temporal resolution is to simply take more exposures with shorter integration periods but this has issues with data throughout and signal to noise.\nThe concept is to measure the light from the same star with a group of pixels, each having a different temporal exposure modulation. In the same way that an RGB array acts as spectral separator, a modulation array acts as a separator of temporal information that occurs during the integration period. Instead of red, green, and blue pixels, we have different exposure modulations for each pixel. This technique allows the user to find temporal behavior during the exposure itself by multiplexing time information on spatial pixels. Beyond stars, the same technique can be used to achieve higher frame rates in optical cameras, thereby overcoming limitations from sensor readout and shutter speed.\nThis document accompanies a presentation given for the Rice University Astronomy Seminar and describes a method for subtracting ambient light that can be generalized via a Gram system to measure time variability of optical signals using a single image exposure. As the RGB Bayer filter projects the wavelength spectrum onto a wavelength bandpass basis, the temporal filter herein described projects the temporal function of a signal onto temporal basis using an array of optical modulators. Reconstruction of the original optical signal can then be achieved by solving a Gram system.\nLiquid Crystal Display\nThe ideal solution would be a programmable modulation for each pixel. With current state of the art LCD technology, it is possible to place an individually programmable modulator in front of each pixel for pixel pitches as small as 27.5 microns. This means the modulation function and the number of modulators can be chosen on the fly or perhaps in response to previous measurements. Because they are used for RGB displays and have undergone decades of industry research, LCDs are optically broadband and highly robust over varied operating conditions. Perhaps the only drawback of the LCD is a standard refresh rate of at most 120 Hz.\nAn extra benefit of an LCD placed at the focal plane is its dual use as a locally adaptive shutter to enhance the Dynamic range of the sensor. Dynamic range problems have arisen by which increasingly larger telescopes are saturating on dim reference stars. Saturation of stars can lead to banding and global offsets for the entire chip leading to errors that are difficult to correct. It is then desired to attenuate the brightest objects without attenuating the dim objects. The LCD can be used to variably attenuate all stars to achieve non saturating measurements. In practice, a test image would be produced with no attenuation that identifies the brightest objects. The exposure over the brightest objects in the array can then be adjusted by dimming pixels only over those objects.\nMicro Patterned Analyzers\nIf pixel pitch becomes a limiting factor for an LCD approach, a polarizer grid can be placed directly on the silicon sensor, either as part of the 1st metal layer during sensor fabrication, or as an added ion beam etched wire grid polarizer. The superpixel would be composed of 4 states: 0, 45, 90, and 135 allowing for a complete identification of the Stokes’s parameters. There are several manufacturers for pixellated or micro patterned polarizer grids that have achieved optical wire grid polarizers as small as 5.6 microns. On top of the grid, a global polarization rotating mechanism rotates the polarized input beam through 180 degrees. When analyzed by the 4 polarizer states, this yields 4 distinct modulation functions. The polarization can be rotated globally by a a single ITO coated liquid crystal, a mechanically rotating half-waveplate, or a Pockels Cell.\nAn emerging practice in High Dynamic Range sensors is to use dual simultaneous exposures of different lengths to effectively increase the dynamic range of the sensor. Even rows are exposed at one exposure length and odd rows at another. This is done by using multiple transfer gates and sense nodes. A similar approach can be taken to incorporate different modulations for N rows in the final read out.","domain":"optical_engineering"}
{"url":"http://www.cytometryworks.com/assembly.html","date":"2023-09-27T16:07:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510300.41/warc/CC-MAIN-20230927135227-20230927165227-00563.warc.gz","language_score":0.9180692434310913,"token_count":826,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__169762302","lang":"en","text":"The Flow Cytometer Maker lab is intended to be assembled by students under the guidance of an instructor. It starts with an empty carbon fiber breadboard, and the various components of the cytometer (laser, optics, flow cell, etc.) are added in sequence. The instrument is then aligned and connected to its electronics an computer. Fluorescent microspheres are usually used as analysis material, although it can also run cells. By running microspheres, we can visualize the stream on the camera.\nThe system is constantly being improved. Feedback is very welcome!\nHere is the breadboard. It is supported on 3D printed ABS plastic legs, and already has some optical rails mounted on it to facilitate assembly of the other components.\nFirst, we mount the flow cell and light collection optics. These are mounted in a single unit that clamps to the breadboard. The flow cell and optics are both from a BD FACScan flow cytometer, and are coupled together using an optical gel. The fluidic and air lines for the flow cell are already attached.\nThe air lines of the flow cell are green, the sheath buffer feed line is blue, and the waste line is orange.\nNext, we mount the stream camera on the long camera arm protruding from the front of the breadboard. This CCD camera is equipped with a 5X widefield objective to visualize the flow cell capillary channel and stream. The camera has a 488 nm notch filter to exclude laser light and only visualize the stream running fluorescent microspheres.\nWe now mount the 488 nm laser. This small DPSS unit manufacturered by Vortran Laser is mounted on a heat sink, and used micro optical rail mounts (like most components on the system) to attach to the breadboard.\nThe laser focusing lens and steering prism are then attached. The lens is a 100 mm focal length achromat taken from a BD Biosciences FACSVantage, and focuses the laser beam on the flow cell and the stream. The steering prism is a flat glass prism that allows the laser beam to be translated up or down and left or right by adjusting the angle of the prism. The prism has both course adjustment (by moving the mount) and fine adjustment, using fine actuators to adjust the position of the beam.\nThe laser is then turned on, and the camera activated and focused onto the flow cell with the 488 nm notch filter removed. Even if the laser light is not directly hitting the flow cell capillary, the stray light should be enough to visualize the capillary. The laser beam alignment can then be adjusted until the laser is approximately hitting the flow cell capillary.\nThe walls of the flow cell capillary and the beam are both visible on the camera.\nThe air pump module is then set up. This unit contains two air pump, two air switches to turn on and off the air pressure, two regulators, and two pressure gauges. The left hand components control pressure for the the sheath air, the right hand components for the sample air.\nThe air line tubing is colored green, the sheath line is colored blue and the waste line is colored orange. The sheath air line use opaque green tubing, the sample air lines use clear green tubing. Two bottles with caps equipped with two Luer ports are used as sheath and waste containers. The sheath container must be air-tight.\nTo connect the air and fluidics:\n(1) Connect the blue sheath line from the flow cell to the sheath bottle.\n(2) Connect the clear green sample air line from the flow cell to the sample air port on the fluidics unit\n(3) Connect the orange waste line from the flow cell to the waste bottle.\n(4) Connect the opaque green air line from the sheath bottle to the air pump unit.\nThe air pumps, pressure gauges regulators and pneumatic switches are visible on the front of the console. Power supplies for the air pumps and lasers are also visible.","domain":"optical_engineering"}
{"url":"https://avcvisionsource.com/2014/11/26/670/","date":"2023-10-02T13:40:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511000.99/warc/CC-MAIN-20231002132844-20231002162844-00163.warc.gz","language_score":0.9389132857322693,"token_count":371,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__175913578","lang":"en","text":"Aging Eyes and Multifocal Lenses\nMany of our 40 to 45 year old patients notice that their eyes have lost the ability to focus up close, especially in low light. Stretching their arms away from their eyes to read a book or restaurant menu is a typical sign of presbyopia.\nPresbyopia affects nearly everyone. It happens because as we age the eye’s crystalline lens loses its elasticity, making it more difficult to focus. Fortunately, presbyopia is a very treatable condition.\nReading glasses are often the first solution that comes to mind. The hectic pace of the day makes it easy to be caught without a pair, however. And for some people, the idea of pulling out reading glasses at a restaurant–say during a business lunch or dinner with someone special–isn’t very appealing.\nThankfully, multifocal contact lenses are an option that many people now favor.\nOne solution we recommend is CooperVision Biofinity® multifocal lenses with Balanced Progressive™Technology. Some contact lenses for presbyopia are like miniature bifocal glasses with near vision correction on the bottom and distance vision correction on top. In other cases, a different lens for each eye–one for distance vision and one for close-up vision.\nBut Biofinity multifocal lenses are different. This advanced design features multiple zones of vision correction in both lenses, so both of your eyes can see near, far and in-between with excellent clarity. These lenses are naturally wettable and very breathable, so they’re soft, comfortable and healthier for your eyes, too.\n*Nothing in this article is to be construed as medical advice, nor is it intended to replace the recommendations of a medical professional. For specific questions, please see your eye care practitioner.","domain":"optical_engineering"}
{"url":"http://auroralighting.com/au/ProductDetail/EN-DDL10AK","date":"2018-09-25T07:26:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267161214.92/warc/CC-MAIN-20180925063826-20180925084226-00204.warc.gz","language_score":0.7107148766517639,"token_count":111,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__160706456","lang":"en","text":"Uni-Fit™ 10W Integrated IP44 Dimmable LED Downlight\nPerformance - that’s what the Uni-Fit™ range of commercial downlights stands for. Featuring ThermoTec™ technology, integrated driver and high quality LED chips to deliver serious lumen performance. The Uni-Fit range is the ideal cost effective solution for new or existing installations where traditional compact fluorescent downlights need upgrading to more efficient LED technology.\n|SKU Code||Wattage||Lumens||Colour Temperature||Dimmable|","domain":"optical_engineering"}
{"url":"https://eprimefeed.com/latest-news/ria-novosti-the-army-of-the-russian-federation-spoke-about-the-use-of-the-ironia-optoelectronic-complex-during-the-nwo-rossiyskaya-gazeta/224456/","date":"2023-05-28T15:18:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644309.7/warc/CC-MAIN-20230528150639-20230528180639-00731.warc.gz","language_score":0.9704570174217224,"token_count":201,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__76348604","lang":"en","text":"“We use a portable surveillance device,” the soldier said. According to him, the complex, equipped with a thermal imager and a laser rangefinder, is designed to observe and collect information about the area, including the detection of various objects. He can also use the device to record videos.\nThe interlocutor noted that the complex gives the range and coordinates of the targets. With it, you can “direct and adjust the artillery and our favorite plane.”\nThe military added that the situation in the Kupyansk sector is now steadily tense. Enemy team movement was noted. This data was transmitted to the artillery, which hit the targets.\nEarlier it was reported that the Russian army is training in Ukraine to fire from a low-noise 82mm “Gall” mortar. Due to the lack of flash and sound when fired, as well as the small size of the weapon, she was nicknamed “Saboteur Howitzer”.","domain":"optical_engineering"}
{"url":"https://www.gctech.us/fiber-optic-cabling/","date":"2024-02-26T16:54:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474661.10/warc/CC-MAIN-20240226162136-20240226192136-00070.warc.gz","language_score":0.8632366061210632,"token_count":336,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__129316267","lang":"en","text":"Fiber Optic Cabling\nFIBER OPTIC SOLUTIONS\nGlobalcom Technologies is BICSI certified in fiber optic distribution design and installation for a wide range of network applications. We can help you integrate data and telecommunication networks over Fiber Optic Backbone effectively. Our Fiber Optic certifications, extensive experience in Fiber Optic installation, and knowledge of Fiber Optic technologies and standards are key factors in our successful delivery of fiber network solutions. We can deliver the solution that best meets your application needs, now and over the long term.\nGlobalcom fiber optic services include:\n- Design and Installation of Fiber Optic Cabling Systems\n- Terminations of Fiber Optic Cable Using the Latest Standards and Products\n- Fiber Optic Fusion and Mechanical Splicing\n- Fiber Shelves and Light Interconnection Units\n- Fiber Optic Cabinets, Racks, Shelving, and Patch Panels\n- Innerduct, Conduit, and Cable Tray Installation\n- Cable Testing and Certification\nFiber Optic Technology\nWe have extensive experience working in various complex environments, including:\n- Government Office Buildings\n- Health Care Facilities\n- Medium Voltage Installations\n- Industrial Facilities\n- Office Buildings\n- Tenant Finish Projects\n- Mixed Use Projects\n- TeleData Installations\n- Custom Residential\nIn our extensive portfolio you will be able to find mid- and large-size projects Globalcom has had the privilege to work on.\nAs a premier provider of security systems, voice and data networks, and structured cabling systems, Globalcom Technologies provides single source accountability for all security, voice/data/video, and wireless applications.","domain":"optical_engineering"}
{"url":"https://www.zintro.com/area/photonics","date":"2022-01-27T17:03:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305277.88/warc/CC-MAIN-20220127163150-20220127193150-00222.warc.gz","language_score":0.8822836875915527,"token_count":553,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__175826093","lang":"en","text":"Fiber Optic Cables Laying And Maintenance\nwe are a global market research firm and are seeking experts who can assist us identify key trends and practices in the laying and maintenance of “fiber optic cables” in the us.\nList of requirements are given below:\nleading vendors (scope - us)\n• key suppliers involved in “fiber optic cable” laying and maintenance\no construction companies\n• experience (if possible in fiber optic laying)\n• industries served & types of construction projects\n• innovations & trends in fiber operations and laying process /new methods of construction (prefabricated, modular etc.) /technology etc.\nPricing models (scope - us)\n• engagement models/pricing models, contract structures & payment terms while engaging with construction companies during fiber optic cable laying\n• cost structures & key drivers\n• pricing for installation, deployment & maintenance – standard rates for fiber optic cables per meter\n• hypothesis –\no is it possible to engage directly with sub-contractors?\nO “prices of smaller sub-contractors are higher than larger players”\nindustry trends & practices (scope - us)\n• what are telecommunication companies doing in terms of pricing model and engagement model?\n• best practices from other industries that can be incorporated in the telecom industry?\n• negotiation levers while engaging with construction companies for fiber laying process\nwe would like to engage via phone consult with experts knowledgeable about fiber optic cable laying/construction industry. Ideal candidates should have deep knowledge of industry trends and practices, key suppliers, pricing models, contract structures, best practices etc.\nWe are looking for a phone consult for a time period of 1-2 hours to discuss all points mentioned above. Kindly drop in a note with your cv/relevant experience in the “fiber optic cable laying/construction” industry, if you are interested to proceed.\nthomas+9 Other Responses\nI need a fiber optic consultant or optical engineer with expertise in coupling light into single mode fibers, imaging fibers, multimode fibers.+14 Other Responses\nI am trying to find a solid core single mode optical fiber with a core refractive index well above or below 1.5 (e.G. Say greater than about 1.7 or less than about 1.3) for a special relativity experiment. Also it would be nice to have attenuation of <3 db/km.\nPlease don't contact me if you don't know of such a product.\ndan wagner+1 Other Responses","domain":"optical_engineering"}
{"url":"https://www.jbtools.com/seek-thermal-rt-abax-revealxr-long-range-thermal-imager-camera-black/","date":"2019-09-18T22:01:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573368.43/warc/CC-MAIN-20190918213931-20190918235931-00040.warc.gz","language_score":0.8151212930679321,"token_count":335,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__204884279","lang":"en","text":"Seek Thermal RT-ABAX RevealXR Long Range Thermal Imager Camera, Black\n?RevealXR features the same accurate thermal sensor as Reveal at 206x156 for instant detection and a powerful 300-Lumen LED flashlight to gain visible light at a moment's notice. Its intuitive, single-handed interface and button control makes it ideal for outdoorsmen and public safety professionals. Works in daylight or total darkness.\n- Professional Thermal Imaging Tool: 206 x 156 thermal sensor. Accurately identifies heat signatures of overheated circuitry or leakage. Features 300 Lumen LED Flashlight. Measures temperature from -40° to 626°f (-40° to 330°c)\n- Battery Operated Thermal Imager: infrared sensor tool features rechargeable Lithium-ion battery. Battery recharging USB cable provided with imaging tool recharges the imaging camera within a short span.\n- Durable Imaging Accessory: water resistant and shock proof thermal imaging accessory. Scans inside of any room for detecting problem areas.\n- Handheld Thermal Imager: professional thermal imaging tool offers wide resolution to capture images. 9 color palettes provide accurate image capturing. Removable 512mb MicroSD stores various images with ease.\n- Adjustable Security Equipment: high quality thermal imager features intuitive controls to go to work where you do. Built for long-range detection. Narrow, 20° field of view quickly scans up to 900 ft (275 meters) viewable distance\n- Features rugged, rubberized casing to enhance durability of the product. Portable Seek Reveal identifies spot leaks with its auto-focus. Delivers perfect thermal insight","domain":"optical_engineering"}
{"url":"https://www.dpchallenge.com/forum.php?action=read&FORUM_THREAD_ID=918405&page=1","date":"2021-07-31T06:29:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154053.17/warc/CC-MAIN-20210731043043-20210731073043-00076.warc.gz","language_score":0.9564371109008789,"token_count":161,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__193441313","lang":"en","text":"|I came home from work today to find a package from brianlh, containing the 17-40L I bought from him. I went out back to snap a few test shots, and on a whim I grabbed a 12mm extension tube. After playing with the lens in \"normal\" shooting mode, I attached the extension tube, set the focus to manual and infinity, and shot a couple wide angle macros:\nIt's neat to be able to get in tight, but still capture that wide view of the background. Unlike the complete blurring that occurs with a long focal length macro lens, the background remains somewhat recognizable. A very different way to shoot macro.\nI'm really liking the 17-40. It's excruciatingly sharp when stopped down, a really nice landscape lens.","domain":"optical_engineering"}
{"url":"http://sunshirt.info/what-research-about-systems-can-teach-you/","date":"2018-10-17T22:41:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511314.51/warc/CC-MAIN-20181017220358-20181018001858-00005.warc.gz","language_score":0.9664714932441711,"token_count":472,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__14230512","lang":"en","text":"Businesses usually require high-speed internet and this is why established businesses should get business fiber optic. Quick uploading and downloading of content requires one to get high-speed internet. Voice services require high-speed internet and this is why businesses should get business fiber optic. When one has high speeds for their internet, they can have cloud services that are essential for a business. Businesses need fast internet so that they can communicate with customers, suppliers, employees etc and this is easily achievable with business fiber optic.\nThere will be no slow speeds when one is using the internet which can lead to a lot of time wastage for a business that uses business fiber optic. Startup businesses can also benefit when they get business fiber optic from the very beginning. There is an easy collaboration of employees when a business is using business fiber optic because they can be able to respond to each other quickly due to fast speeds.\nOne can have an advantage over their competitors when they get business fiber optic.\nBusinesses which want reliable internet can get business fiber optic which is always reliable. Businesses which must have internet to operate need to get a reliable source such as business fiber optic. Another advantage of using business fiber optic is that it is not interrupted easily by power lines as well as high voltage electrical items. When one requires high uptime they should get business fiber optic for their business. Business fiber optic is stable and this makes clients happy with their internet.\nBusinesses which use business fiber optic do not have to worry about the size of the content that they want to put online. In this day and age when one needs to keep updating their content online, this is very beneficial to businesses. This will ensure a strong online presence in social media platforms and other platforms.\nBusinesses which use business fiber optic can allow their employees to work remotely because they can be able to access company systems without any problems of speed. When employees can work from any location, they will be happy with their work schedule which allows them some flexibility and this can improve their performance.\nAnother advantage of getting business fiber optic is because businesses can be able to use video conferencing and interact with clients from different countries. Businesses should get business fiber optic because it cannot easily be hacked since it is a secure network. Businesses can also enjoy a private connection when they get business fiber optic.","domain":"optical_engineering"}
{"url":"https://profiveshop.com/products/4-in-1-measuring-tape","date":"2022-01-25T13:56:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304835.96/warc/CC-MAIN-20220125130117-20220125160117-00187.warc.gz","language_score":0.9219880104064941,"token_count":244,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__241060507","lang":"en","text":"This 4-in-1 Laser Tape Measurer is perfect for your work. Our 4-in-1 Laser Tape Measurer can measure distances up to 40 meters, can perform area measurements of walls, floors, etc., can perform volume measurements of rooms, and can even perform Pythagorean measurements. The device features a one-button-ranging system, ensuring easy and quick use. The readings are accurate to .001 meters and show on the device's intelligent digital display for improved visibility. The 4-in-1 Laser Tape Measurer features a built-in rechargeable battery that sustains a charge for up to a week. It is built with high-quality plastic and features a waterproof, dustproof, and drop-proof design. Get work done like a pro with our 4-in-1 Laser Tape Measurer.\nFeatures and Benefits\nMeasures distance, area, volume, and even Pythagorean distances!\nThe 4-in-1 Laser Tape Measurer gives measurements accurate to .001 units.\nThe 4-in1 Laser Tape Measurer is light and attaches right to your belt, toolkit, etc.","domain":"optical_engineering"}
{"url":"http://donovanrpia112.jiliblog.com/5124051/eye-surgical-treatment","date":"2018-07-17T01:25:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589537.21/warc/CC-MAIN-20180717012034-20180717032034-00074.warc.gz","language_score":0.958696186542511,"token_count":1315,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__95537252","lang":"en","text":"Eye Surgical treatment has become a mainstream approach of vision improvement, as well as this post will explain the benefits and also drawbacks of 3 various methods being supplied to the medical consumer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis as well as is an eye medical system which permanently deals with vision by removing a thin layer of the cornea. This treatment works best on individuals with moderate to high degrees of myopia (nearsightedness), reduced to moderate levels of hyperopia (farsightedness) and astigmatism associated with nearsightedness, and that have thick corneas. It is the most widely known surgical vision correction technique.\nIndividuals with normal eye sight see things plainly because pictures are brought right into a correct centerpiece by the cornea and also lens of the eye. Ideally, the cornea's curvature is uniformly matched to its size in a regular eye. Individuals with astigmatism, myopia or hyperopia have actually off-and-on shaped corneas, so the objects seen are not concentrated appropriately. LASIK changes corneal shape by specific elimination of corneal cells, and also by doing so corrects the eyes' concentrating power.\nThere are, nonetheless, risks to LASIK eye surgery.\nThere is a remote chance of total loss of vision. If this happens, it is typically due to the fact that the person had a pre-existing condition which ought to have precluded the surgical treatment in the first place, such as maternity, cataracts, joint inflammation, diabetes mellitus, glaucoma, or lupus. People with huge pupils are likewise poor candidates for LASIK. Dry eye disorder will certainly be intensified by this procedure.\nA couple of individuals complain that they completely see \"ghost\" pictures, have obscured vision, diminished contrast and poor evening vision. When LASIK was first introduced, 5% of individuals had post-operative complaints; nevertheless, improvements in the procedure have actually created this rate to drop to less compared to 1% if LASIK is executed by skilled experts and also patients are appropriately evaluated prior to surgical treatment. If troubles do occur, they can often be resoved by a retreatment.\nFDA has actually approved LASIK laser eye surgical treatment since 1998. While there are a lot of pleased individuals, there are nonetheless no long-term studies about its effects. Recognize the restrictions and the threats of LASIK eye surgical treatment prior to you sigh for the treatment.\nThough less well known, these tiny implants can boost vision in people with light to moderate myopia without the threat of long-term eye damage inherent in the tissue elimination method of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to think a flatter form. Though somewhat much less precise than LASIK, they are removeable and also changeable, so if the person has an unexpected over- or under-correction, the implant more helpful hints could be eliminated as well as one more of a various dimension placed to acquire the wanted correction. The implants lie at the special info edge of the cornea, so the central aesthetic location is totally undamaged and intact, and also the stamina of the cornea is undiminished, making it a much better option for pilots as well as those who engage in contact sporting activities where eye injury is an opportunity.\nIntacs disagree for extreme myopia and also more than small astigmatism (1.00 diopters), as the cornea can just be stretched so far. If the Intacs are removed, vision returns to its preoperative degree. Aside from vision adjustment, Intacs are additionally used to deal with keratoconus.\nIntacs are FDA authorized and also One Decade studies have actually revealed no major troubles with Intacs and very few client grievances; nonetheless, due to the fact that the procedure takes more training than LASIK, there are fewer eye surgical procedure facilities supplying it. Nonetheless, the Intacs website offers a checklist of specialists in each state, also a few in Canada, Europe and also Mexico.\nDue to the fact that many people do not want to run the risk of LASIK and also Intacs could not aid those with severe vision issues, intraocular lens implants (IOL) are a new alternative accepted by the FDA in 2004 to fix moderate to serious nearsightedness. The Craftsmen lens, produced by Ophtec, is similar to the type of lens dental implant made use of to recover vision following cataract eye surgical procedure.\nThe new IOL, called the Craftsmen, is planned for only clients who have 2.5 diopters or less of astigmatism.\nThe man-made lens does not replace the natural lens, but is inserted in front of it. The major issue located with the implant was the consistent loss of endothelial cells in the corneas of people that received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are crucial in maintaining the cornea clear. A three-year study revealed a continuous stable loss of endothelial cells of 1.8 percent a year. At this moment, no one can forecast whether this loss will certainly continue at the very same price forever, and even its influence on corneal function.\nTo minimize long-lasting results of the gadget on the corneal endothelium, the FDA is needing that the new lenses be classified to specify that they should just be dental implanted in clients whose corneal endothelial cells are thick adequate to stand up to small cell loss.\nMore serious complications were couple of: retinal detachment (0.6%), cataract growth (0.6%), as well as corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up study of its dental implant people to much better evaluate the post-surgical incidence of cataract growth, retinal detachment as well as various other ocular conditions.\nThe Artisan lens is meant to be a permanent implant.Though it could be removed surgically, vision may not constantly return to exactly what it was before getting the lens. Since it does not impact astigmatism, clients with this issue may still call for glasses.","domain":"optical_engineering"}
{"url":"https://ledcolorful.com/en/new/Holographic-Aadvertising.html","date":"2019-07-24T04:25:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195530385.82/warc/CC-MAIN-20190724041048-20190724063048-00409.warc.gz","language_score":0.8821392059326172,"token_count":293,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__38892577","lang":"en","text":"About Holographic Technology\nHolographic technology The first step is to use the principle of interference to record the object light wave information, that is, the shooting process:\nThe other part of the laser as a reference beam shot on the holographic film, and the material beam superposition of interference, the object light waves on the point of the phase and amplitude into space in the space The intensity of the change, so that the use of interference between the fringes between the interval and the object of light all the information recorded.\nRecorded in the interference fringed film after the development, fixing and other processing procedures, it becomes a hologram, or holographic photos; the second step is the use of diffraction principle to reproduce the object light wave information, which is the imaging process:\nThe hologram is like a complex grating. In the case of coherent laser irradiation, a linearly recorded sine-type hologram diffraction light wave generally gives two images, the original image (also called the initial image) and the conjugate image. Reproduce the image three-dimensional sense of strong, with a real visual effect.\nEach part of the hologram records the optical information of each point on the object, so in principle it can reproduce the entire part of the original image, through multiple exposure can also be recorded on the same film a number of different images, And can not show each other without interference.","domain":"optical_engineering"}
{"url":"http://www.camerapartners.tv/gear/canon-eos-c300/","date":"2018-02-24T04:01:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815318.53/warc/CC-MAIN-20180224033332-20180224053332-00724.warc.gz","language_score":0.727677583694458,"token_count":128,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__174648752","lang":"en","text":"C300 is available with the following packages:\n- $300/day, Body only with Zacuto Z-coil rig.\n- $400/day, Body, Z-rig, f2.8 lens kit (16-35, 24-70, 70-200).\n- $400/day, Body, Z-rig, Rokinon Cine Prime lens kit, (24, 35, 50, 85).\n- $600/day, Body, Z-rig, B4 mount and B4 ENG lens (18×7.6 pictured), rods and 2x150wH batteries.","domain":"optical_engineering"}
{"url":"https://bodymindbeautyhealth.com/qa/question-can-laser-scanners-hurt-your-eyes.html","date":"2020-09-23T19:16:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400212039.16/warc/CC-MAIN-20200923175652-20200923205652-00522.warc.gz","language_score":0.9187500476837158,"token_count":1457,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__38307192","lang":"en","text":"- Can a laser scanner blind you?\n- Why do barcode scanners use red light?\n- Is it safe to photocopy your face?\n- Is scanner light bad for your eyes?\n- Do barcode scanners emit radiation?\n- What color laser is the most dangerous?\n- Can barcode scanners cause cancer?\n- What are the symptoms of laser eye damage?\n- Are red lasers dangerous?\n- Is it bad to look at the copy machine light?\n- Are printer scanners dangerous?\n- Do laser cutters emit radiation?\n- Can a laser damage your eye?\n- What class of laser is a barcode scanner?\n- How long does it take for a laser to damage your eye?\n- Can a Class 3 laser damage your eyes?\n- Are Class 4 lasers dangerous?\n- Why is it dangerous to shine a laser in someone’s eyes?\nCan a laser scanner blind you?\nClass 2 and 2M laser barcode scanners are considered SAFE if the beam happens to hit the human eye.\nPhysical limitations may cause some people the inability to blink quickly, to avert their eyes, or to turn their head away from the laser beam, causing pain and discomfort, or even temporary impairment of vision..\nWhy do barcode scanners use red light?\nScanners with red light sources are most common. They have the big advantage that the light source can be seen, making it easy to tell where the scanner is “looking”. This makes alignment a lot simpler. You can also get some visual feedback that the scanner is actually working.\nIs it safe to photocopy your face?\nVery low from a single exposure, says a spokesman for the Health and Safety Executive. “We would not advocate people photocopying their faces but we think it’s extremely unlikely that there would be any long-term damage from a single exposure.” … Eye experts play down the risks of photocopying the face once or twice.\nIs scanner light bad for your eyes?\nThe lasers in handheld scanners emit radiation which can burn your retina due to prolonged exposure, much like staring at the sun for too long. This injury won’t happen to most people, as you’ll instinctively look away from intense light in order to protect your eyes from damage.\nDo barcode scanners emit radiation?\nBarcode scanners, which have very low emissions, are ‘class 2A’ laser devices. Although they emit some radiation, barcode scanners are generally considered to be a very low risk to food. … But, as food at the checkout is quickly passed by the scanner, it is unlikely to receive much radiation.\nWhat color laser is the most dangerous?\nPrinciple #4: A green laser is more of a visual hazard than an equivalent red or blue laser. The human eye is most sensitive to green light. The chart below shows this more precisely. Wavelengths increase from blue on the left to red on the right.\nCan barcode scanners cause cancer?\nBarcode scanners use very low energy laser diodes. The only health risk is from directly aiming for the eyes. Even that would take a while, depending on the intensity of the laser. Other than that, you will have to try to tan yourself with a barcode scanner to experience any visible damage to your health.\nWhat are the symptoms of laser eye damage?\nSymptoms of a laser burn in the eye include a headache shortly after exposure, excessive watering of the eyes, and sudden appearance of floaters in your vision. Floaters are those swirling distortions that occur randomly in normal vision most often after a blink or when eyes have been closed for a couple of seconds.\nAre red lasers dangerous?\nRed laser pointers that are “properly labeled” in the 3-5 mW range have not caused eye damage — no retinal damage has been reported — but there are very real concerns. … There are reports that green lasers, improperly imported to the U.S., far exceed safety limits.\nIs it bad to look at the copy machine light?\nDuring the process of creating copies, both visible and ultraviolet light emits from the lamp in a photocopier. … While not considered harmful, ultraviolet light emitted from machines may cause eyestrain if you continually look at the light while making copies.\nAre printer scanners dangerous?\nScanners and printer packages are marked with radiation harmful to the body. However, this kind of radiation is not very harmful to the human body, and it is far lower than x-ray.\nDo laser cutters emit radiation?\nLaser cutters are normally fully enclosed systems that prevent laser operation unless the safety interlocked doors are fully closed. They typically contain a carbon dioxide (CO2) laser that produces invisible laser radiation at a wavelength of 10600 nm in the infrared spectrum.\nCan a laser damage your eye?\nWhile it is unlikely most lasers used in toys, games, and laser pointers can permanently damage your eyes, it is theoretically possible so caution should be exercised. … Shining a laser pointer in someone’s eye performing certain visual tasks can cause flash blindness and result in an accident.\nWhat class of laser is a barcode scanner?\nLaser Hazard ClassesClass FDAClass IECProduct ExamplesIIa, II2, 2Mbar code scannersIIIa3Rlaser pointersIIIb3Blaser light show projectors industrial lasers research lasersIV4laser light show projectors industrial lasers research lasers lasers used to perform LASIK eye surgery1 more row•Mar 7, 2018\nHow long does it take for a laser to damage your eye?\nLaser pointers can put out anywhere between 1 and 5 milliwatts of power, which is enough to damage the retina after 10 seconds of exposure. This can lead to permanent vision loss. That said, it can be very difficult to expose the retina to that much light for that long a time.\nCan a Class 3 laser damage your eyes?\nClass 3B visible-light lasers are hazardous for eye exposure. They can cause burns to the retina. A person cannot turn away or blink fast enough to prevent retinal eye injury from a nearby Class 3B laser. At the low end, around 5 to 50 milliwatts, a Class 3B laser poses a moderate risk of eye injury.\nAre Class 4 lasers dangerous?\nClass 4. Class 4 is the highest and most dangerous class of laser, including all lasers that exceed the Class 3B AEL. By definition, a class 4 laser can burn the skin, or cause devastating and permanent eye damage as a result of direct, diffuse or indirect beam viewing.\nWhy is it dangerous to shine a laser in someone’s eyes?\nWhy lasers can cause eye damage. … The power density from a 1 milliwatt laser, focused to a point, is brighter than the equivalent area of the sun’s surface. This can cause a detectable change (injury) to the retina, if the laser stays in one spot for a few seconds.","domain":"optical_engineering"}
{"url":"https://psychology-software-tools.mybigcommerce.com/hyperion-mri-digital-projection-system/?setCurrencyId=27","date":"2024-04-16T02:24:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817036.4/warc/CC-MAIN-20240416000407-20240416030407-00724.warc.gz","language_score":0.8029532432556152,"token_count":257,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__36159665","lang":"en","text":"The Hyperion MRI Digital Projection System features a native resolution of 1920 x 1080 (1080p) and synchronized image frame rate with continuous monitoring for optimum presentation and timing of fMRI experiments. The system uses Digital Light Processing® (DLP) technology that provides microsecond pixel rise times, outstanding contrast with all-digital fiber optic control that allows you to project crystal clear, sharp images. The Hyperion MRI Digital Projection System has been validated for use in 1.5T, 3T, and 7T MRI environments.\nThe Hyperion MRI Digital Projection System includes:\n* High resolution (1920 x 1080) DLP Projector with RF filtered enclosure, custom lens assembly, digital video (DVI) over fiber, high flow fans, internal thermal sensor\n* Control Room Console to perform DVI to Fiber conversion, remotely power down the projector, and show the device status\n* 30 meter fiber optic cable that runs between the projector and projector control station (longer lengths available with additional charge)\n* Heavy duty, magnet compatible, projector stand (assembly required)\n* High resolution, lenticular pitch rear projection screen and magnet compatible stand for high quality image reproduction (6 point text is readable)\nPlease contact PST to request a quote.","domain":"optical_engineering"}
{"url":"https://www.iasabhiyan.com/vantablack-worlds-darkest-material/","date":"2022-08-09T15:10:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570977.50/warc/CC-MAIN-20220809124724-20220809154724-00593.warc.gz","language_score":0.9193686246871948,"token_count":427,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__33096663","lang":"en","text":"- The world’s darkest material – capable of absorbing 99.96 per cent of ultraviolet, visible and infrared light – is now available in a spray-on form, which can make any 3D object look like a flat black void.The material, called Vantablack, was first created by researchers in 2014.\n- Since its initial development, researchers have increased the material’s blackness.\n- The material was so black no spectrometer was able to measure how much light Vantablack absorbs, according to the researchers.\n- The new variation, known as Vantablack S-VIS, is available in a spray-on form that blocks 99.8 per cent of ultraviolet, visible and infrared light – enough to make an otherwise detailed 3D object appear as a flat black void.\n- It is not a paint, pigment or fabric, but a special coating designed to achieve a near total lack of reflectance, according to Surrey NanoSystems, the UK-based company that produces Vantablack.\n- Vantablack achieves its supreme blackness through millions of carbon nanotubes.\n- Each nanotube of the coating is around 20 nanometres in diameter – about 3,500 times smaller than the width of a human hair – and around 14 microns to 50 microns long. This amounts to about one billion nanotubes on a surface area of one centimetre square. When light hits this nanotube “forest,” it enters the microscopic spaces amid the tubes and is rapidly absorbed as it bounces between them. The almost perfectly black, light-void surface is created because of the material’s near-total lack of reflectance.\n- Vantablack may have a diverse range of applications including high-performance infrared cameras, sensors, scientific instruments, satellite-borne calibration sources, and even to provide a unique aesthetic effect in certain high-end luxury products.\n- Its ability to absorb light energy and convert it to heat is also of relevance in solar power development.\nSource: Indian Express","domain":"optical_engineering"}
{"url":"http://www.corinf.eu/partners/max-born-institut/","date":"2017-08-20T15:17:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886106779.68/warc/CC-MAIN-20170820150632-20170820170632-00340.warc.gz","language_score":0.6640889644622803,"token_count":655,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__35794707","lang":"en","text":"(Forschungsverbund Berlin e.V. - Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy)\nMax-Born-Str. 2a, 12489 Berlin, Germany\nContact person for housing, travel, etc.\nEmail: becker (at) mbi-berlin.de\nSabine Schulz (Human Resources)\nEmail: sschulz (at) mbi-berlin.de\nMBI theory group – http://staff.mbi-berlin.de/mbijtheory/\nAbout the Institution\nThe Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) conducts basic research in the field of nonlinear optics and in ultrafast dynamics of the interaction of laser light with matter, and pursues applications that emerge from this research. Using lasers and laser-driven short pulse light sources, experiments are performed in the femtosecond time range (1 femtosecond = 1 millionth of a billionth of a second) and at extremely high light intensities (1020 watts per square centimeter).\nThe research program focuses on optically induced nonlinear phenomena and the monitoring and control of ultrafast dynamics. Such studies provide direct insight into microscopic processes and structures that determine the physical properties of atoms, molecules, plasmas, solids and surfaces. Current examples include the observation of ultrafast structural changes in crystals with X-ray pulses and the acceleration of protons and ions in extremely high laser fields.\nAbout the Groupleader\nDr. Olga Smirnova\nEmail: smirnova (at) mbi-berlin.de\n- Imaging and controlling correlated electron dynamics in molecules.\n- Time- and space-resolved imaging and control of charge migration, electron rearrangement, autoionization, coupling of the electronic and vibrational motions in molecules.\n- Understand the role of attosecond coherent electron dynamics in chemical reactivity\nMain research directions:\n- HHG spectroscopy\n- Photoelectron spectroscopy\n- XUV pump -IR probe imaging and control schemes\n- Theory of multi-electron systems in strong fields\n2. Senior Scientist:\nDr. Foudhil Bouakline\nEmail: bouaklin (at) mbi-berlin.de\nCoupled electronic-nuclear dynamics in strong laser fields\nMy current project is about the effect of strong laser fields on nuclear dynamics at conical intersections.\n2014-Present: Experienced researcher, Max Born Institute, Berlin, Germany\n2012-2014: Postdoctoral researcher, Max Born Institute, Berlin, Germany\n2010-2012: Alexander von Humboldt postdoctoral fellow, University of Potsdam, Germany\n2006-2009: Postdoctoral researcher, University of Cambridge, UK\n2002-2006: PhD in Atomic and Molecular Physics, Université Pierre et Marie Curie, Paris, France\n2000-2002: MSc in Atomic and Molecular Physics, Université Pierre et Marie Curie, Paris, France\n2000: BSc in Physics, Université de Béjaïa, Algeria\nTheoretical Atomic and Molecular Physics","domain":"optical_engineering"}
{"url":"http://forums.fluidinteractive.com/t/change-cauchy-spectrum-colours/130","date":"2020-08-15T16:43:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439740929.65/warc/CC-MAIN-20200815154632-20200815184632-00225.warc.gz","language_score":0.8420054316520691,"token_count":398,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__131498408","lang":"en","text":"The Cauchy spectrum node generates an index of refraction that changes based on the wavelength: https://en.wikipedia.org/wiki/Cauchy's_equation\nFor materials like glass, or gems, using a fixed index of refraction, like for example 1.5, independent on the wavelength, is non sufficient to simulate some effects such as dispersion. The Cauchy spectrum node generates an index of refraction that varies based on the wavelength according to the above Cauchy Equation, producing much more realistic results.\nTo change the color of the gem, the best way is to adjust the absorption of the dielectric medium. As light travels inside the gem, light is absorbed depending on this absorption parameter. So if you set the absorption parameter to blue, all the blue frequency of light will be absorbed, and the gem will look yellow, because none of the red and green frequencies will be absorbed. If you set the absorption parameter to black, the gem will look white, because none of the frequencies will be absorbed. Please also note that the absorption parameter is on dependent on the size of the gem, because the longer the distance the light travels inside the gem, the more light will be absorbed. For this reason, you might want to adjust the scale of the color parameter to values much bigger than one.\nFor the spectrum files, please refer to the reference in Help->View Help and look for the “Spectrum(spd)” files reference. There is a explanation with examples on how to create spd spectrum files. You can use the nodes created in this way as input for the absorption parameter of the dielectric medium. If you use measured data from real life crystals you will get very realistic results. You can find online the tabulated data for many common crystals, for example here: http://minerals.gps.caltech.edu/FILES/Visible/Index.html","domain":"optical_engineering"}
{"url":"https://cctvworld.ae/products/","date":"2022-01-27T18:03:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305277.88/warc/CC-MAIN-20220127163150-20220127193150-00094.warc.gz","language_score":0.8972606658935547,"token_count":926,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__172030542","lang":"en","text":"Best CCTV Installation Service In UAE\nDome CCTV Camera\nThe camera gets its name because of its dome-shaped design. The dome shape makes it difficult to find out which direction the camera is pointing. This tricks the offenders from carrying any bad activities.\nSome dome cameras are integrated with Infrared LED’s to get better footage at low lights.\nBenefits of DOME CCTV installation\n- Provides 360-degree layout view\n- Endurance towards damage, easy to install & cost-effective\n- Installed in retail shops and office cabins\nDay/Night CCTV camera\nDay and Night cameras are built to cope with varying light conditions; they don’t need IR illuminators to operate in dark.\nTheir extra sensitive imaging clips help capture videos in glare, direct sunlight, reflection and in poor lights.\nBenefits of Day/Night CCTV installation\n- Used outdoors in low lit areas requiring 24/7 surveillance\nEx: Manufacturing industry outdoors\nC-mount CCTV Camera\nThe c-mount camera comes with a detachable lens to serve different needs. Built just like a bullet camera it additionally allows you to use special lenses for covering distance beyond 40ft.\nYou can use the varifocal lens to get extra benefits.\nBenefits of C-mount CCTV installation\n- Its stand out visibility scares lawbreakers\n- Can cover longer distances over 40ft\nInfrared Night vision CCTV camera\nIR night vision cameras can record footage at pitch-black conditions (Absolute darkness). IR LEDs Surrounding the lens illuminates dark surfaces and take the IR Reflections on objects to generate video.\nThese videos are black and white in nature. These cameras are priced quite high compared to day & night CCTV Cameras.\nBenefits of IR Night vision CCTV installation\n- They also provide clear images during daytime even in the presence of dust, smoke and fog\n- Installed in places where solid recording is needed 24/7\nBullet CCTV Camera\nThese cylindrical-shaped cameras are known for long-distance viewing. Covered by protective case, It is also resistant to water, dust and dirt.\nThis makes it ideal for outdoor use.\nIt comes with fixed or varifocal lens following your requirement. You can adjust lens focus for broader and narrower field view.\nBenefits of Bullet CCTV installation\n- Long-range surveillance (40ft)\n- IR night vision\n- Easy to install and affordable\nHD CCTV Camera\nProminently known for their picture quality, HD CCTV cameras can deliver clean & crisp footages from 720p to 4K resolution.\nCCTV companies have installed HD cameras in all Dubai banks for greater safety.\nBenefits of HD CCTV installation\n- Accurate recognition can be possible hence installed at the places prone to high risk of theft or crime. Ex: Banks & Casinos\nPan Tilt & Zoom (PTZ) CCTV Camera\nThe camera can move left or right (Pan), Up or down (Tilt) and can be Zoomed in and out. Hence the name PTZ camera.\nThis surveillance system is live monitored by a security person.\nBenefits of PTZ CCTV installation\n- 360-degree field view and better zooming\n- Used in places like stadiums, supermarkets & warehouses to protect valuable things\n[Do you know: Almost all CCTV installed in Dubai museums are PTZ Cameras]\nNetwork/IP CCTV Camera\nIP cameras are the trending and the most preferred cameras by CCTV installation companies in Dubai. They use NVR instead of DVR like in analog cameras.\nNVR stores and sends footages over the network to view from anywhere across the world.\nIP cameras are costlier than analog cameras due to their wide range of benefits.\nBenefits of IP CCTV installation\n- Footage can be viewed from anywhere across the globe while you have a network connection\n- Advanced features like facial detection, number plate recognition & Audio-video recording\n- Easy to set up and low maintenance\n- Helpful for owners who often stay away from the site\nWireless CCTV camera\nThey are usually IP Cameras, Here the captured recording is processed in the camera itself and stored in NVR or Cloud.\nThese footages will be available for remote viewing.\nBenefits of Wireless CCTV installation\n- Blends into different areas of installation. Gives tidy and premium look for positioned areas\n- Easy setup and low maintenance\n- Can be installed in the areas which need spotless and clean presentation like star hotels","domain":"optical_engineering"}
{"url":"https://gatheringformission.org/security-camera-coverage-calculator","date":"2022-07-06T16:59:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104675818.94/warc/CC-MAIN-20220706151618-20220706181618-00717.warc.gz","language_score":0.8752234578132629,"token_count":562,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__245966697","lang":"en","text":"Security Camera Coverage Calculator. It cannot substitute professional advice from technical experts. 0.50 x 1.70 m visualization of changes are visible in field of view of video analytics only.\nUse our dvr/nvr hard drive calculator to determine what size hard drive your system needs to achieve your desired record time. However, even 720p starts becoming overkill and unless the camera can see through walls, 1080p. Note that different image resolution will.\nIt Is Very Important To Use The Right Lens For Desired Field Of View;\nWe also have a wide angle lens fov calculator which provides the field of. I'm trying to make a dynamic block to represent the camera fov coverage for cctv. I'd like a grip on the block to adjust the fov to be wider or narrower, a grip to lengthen or shorten the area, and then another grip to rotate the whole block.\nI've Figured Out How To Do Each Of These 3 Things Using Constraints, But When They.\nIf you want, you can make up a set of coverage indicators for different camera /lens combinations. It enables easy calculation of an appropriate lens focal length, camera viewing angle, ip camera bandwith, storage capacity for records archiving and of other camera system parameters. Camera looks above the horizon and will not give an optimal result.\nDue To This Invention, The Surveillance System Has Become More Reliable And Secure.\nA home security camera usually can see in a range between 0 to 70 feet depending on the resolution, sensor and lens it's using. Cctv calculator is a tool designated for camera system basic parameters determination and testing. Now you can view the cctv camera videos through a network from any location.\nNote That Different Image Resolution Will.\nField of view is an angle which depends on the focal length and sensor size, but it also computes dimensional field of view sizes (width, height, or diagonal fields) at some specific distance, like at the subject distance, and another, like at a background distance. W (horizontal width) = (distance) * 3.2 mm / (lens focal length) where 3.2 mm is the horizontal size of 1/4″ cctv sensor (4.8 mm for 1/3″ sensor). This calculator provides the camera's field of view based on an image sensor and a lens.\nAbout Ultimate Security How To Use This Tool Enter The Distance To The Object In The Top Field.","domain":"optical_engineering"}
{"url":"http://hunt7912jmjblog.mybjjblog.com/2-things-you-do-definitely-not-know-referring-to-lasik-eye-surgical-treatment-5693045","date":"2018-08-20T18:20:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221216724.69/warc/CC-MAIN-20180820180043-20180820200043-00687.warc.gz","language_score":0.9544563889503479,"token_count":869,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__70923205","lang":"en","text":"2 Things You Do Definitely Not Know Referring To LASIK Eye Surgical TreatmentThe eye can be analyzed with relative ease as to both its function and its structure. A functional evaluation consists of the ability to relocate the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye might be checked in several ways. The patient may be asked to determine illuminated letter or objects of varying sizes on what is referred to as the Snellen chart.\nConversely, the evaluation of the structural part of the eye may be made in several ways. Stress within the eyeball is determined by a \"tonometer.\" In certain illness, especially in glaucoma, the tension in the eyeball is increased noticeably.\nIt should be well remembered that a client with an eye problem might have other problems. Typically other physical conditions are main and affect the eye as a effect. The appearance of the eye can inform the physician and the patient to problems in some disruptions of other parts of the body even before other signs present themselves.\nAs a result, one's reliance on sight is emphasized when one deals with a possible or temporary long-term loss of this important sense. Hence, when corrective procedures are looked for, particular kinds of vision correction such as contact lenses or spectacles are prescribed.\nOn the other hand, some people are bothered with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were developed to motivate decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgical treatment is another form of vision correction. The only distinction is that with this type of surgery, one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive errors in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe main function of this surgery is to check that develop a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the important link cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgical treatment, there are still disadvantages that people need to understand. Most likely, the main reason this type of eye surgery has become well accepted is because many of its cases had actually succeeded.\nIn spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is among the most delicate parts of the eye, many people say that the operation can be very dangerous.\nSimply puts, a simple mistake could almost trigger an person's lifetime blindness. Hence, it is crucial to think about lots of factors before deciding whether LASIK eye surgery is the best restorative step one has to undergo.\n2. It is not a perfect procedure\nLASIK eye surgery might remedy your vision but it does not necessarily indicate that it can provide you a ideal vision. Even if analytical reports show that 70% of the patients might have 20/20 vision, this does not always imply they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the ideal eye surgical treatment the way the majority of people see it\nAlternatively, the examination of the structural part of the eye might be made in a number of methods. It should be well kept in mind that a client with an eye issue might have other problems. Typically other physical conditions are main and affect the eye as a consequence. The appearance of the eye can signal the physician and the patient to troubles in some disruptions of other parts of the body even prior to other symptoms present themselves.\nLike its tangible counterpart, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.hairscalp.com/tag/tricoglam/","date":"2024-03-01T18:17:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475422.71/warc/CC-MAIN-20240301161412-20240301191412-00160.warc.gz","language_score":0.9375384449958801,"token_count":135,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__4775995","lang":"en","text":"TricoGlam Home is a new, first of its kind red LED light wavelengths designed to more effectively treat hair loss and other hair and scalp problems. The TricoGlam Home is the perfect compliment to a hair and scalp treatment routine.\nLaser versus LED\nUntil now LLLT devices have only used laser diodes that are pinpointed to one area of the scalp and hair. Although the laser diodes are effective, the introduction of the red LED diodes allows for a more dispersed and fuller coverage of the hair and scalp without sacrificing the effectiveness of the light. Ultimately providing a better LLLT solution for your hair and scalp.","domain":"optical_engineering"}
{"url":"https://newagebrain.net/running-an-led-can-cool-another-device/","date":"2022-11-28T14:30:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710533.96/warc/CC-MAIN-20221128135348-20221128165348-00403.warc.gz","language_score":0.949168860912323,"token_count":578,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__85700373","lang":"en","text":"The study at Michigan University proves that LED can be useful to cool another device such as computers. Future microprocessors will be able to be more potent as it will be able to remove the heat it emits while being used. This will, for sure, bring a change in people as they will switch to only LED lights in the future. Running an LED consumes less energy and has a longer life span than other light sources. Therefore, there are various reasons for choosing an LED light. As these lights are versatile, they need very little maintenance. Moreover, it saves electricity that helps to go green and, in turn, helps to protect the environment.\nWhy Are People Shifting From Normal Lights To LED?\nThe best thing, however, about LED lights is that it saves electricity and lasts quite long. Studies prove that a right Bulb can last for 50 thousand hours. That means that it can last approximately for about 17 years. If one is working continuously for 8 hours every day, then to there is no need to change the bulb in any case. Moreover, studies also prove that an LED light saves almost 95% of the power. Nowadays, there is dull yellow and fluorescent light available in the market that does not feel hot even when kept near the body. Hence, it is everyone`s responsibility to protect the environment, and using LED lights is one such step we can take.\nWhile using a computer in the night, one can connect this astronaut shape LED lamp with the OTG cables. Moreover, the light is sufficient to work late at night without disturbing the other person in the room. However, this lamp is an ideal gifting option for friends and cousins.\nThe light consumes minimal charge and low energy. One needs to plug the port with the laptop to switch the lamp. The cord of the lamp is flexible enough to turn in any direction. Moreover, it is a perfect gifting option for friends and youngsters in the family.\nABS plastic material is used to make these LED lamps. The content is strong enough to make the light durable and long-lasting. However, the dimensions of the lamp are 804030 mm. Moreover, it consumes a voltage of 5 watts.\nThis mini USB powered lamp is ideal for emergencies and for traveling outdoors. Especially when out for hiking and trekking. The USB light is made with flexible tubes that one can mold and twist in any direction. These environment-friendly mini lights are perfect power-saving gadgets.\nHowever, these lights are available in 3 different sizes, and with two various light forms, warm glow and bright yellow light. One can easily plug the light into a 5V USB port and is perfect for any computer and laptops. The light source is, however, LED and is available in 3 LEDs and 8 LEDs. Moreover, this gadget consumes a power of 5 Volts only.","domain":"optical_engineering"}
{"url":"http://www.hobbyhobby.it/per-phantom-3/32-dji-hd-gimbal-camera-phantom-3-advanced-part6-dji-6958265117503.html","date":"2017-03-23T14:16:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218187113.46/warc/CC-MAIN-20170322212947-00543-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.6667913198471069,"token_count":111,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__135988722","lang":"en","text":"DJI HD Gimbal Camera Phantom 3 Advanced Part6\nImagine amazing, immersive footage at your fingertips. Imagine capturing content fit for the big screen, with crisp images, beautiful resolution, and vivid colors. With an integrated, stabilized camera, your Phantom 3 Professional/Advanced brings your imagination to life.\nThe Phantom 3 Professional comes with a 4K camera, while the Phantom 3 Advanced shoots 1080p HD.\nAttenzione: Ultimi articoli in magazzino!\nDisponibilità: Pronta consegna","domain":"optical_engineering"}
{"url":"https://www.tme.rwth-aachen.de/cms/TME/Forschung/Forschungseinrichtungen/~haao/Hochdruckeinspritzkammer/lidx/1/","date":"2023-09-30T23:10:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510730.6/warc/CC-MAIN-20230930213821-20231001003821-00355.warc.gz","language_score":0.88232421875,"token_count":146,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__203730521","lang":"en","text":"High Pressure Injection Chamber\nTailor-made fuels are examined in the high pressure injection chamber. The chamber can be operated with gas pressures of up to 150 bar and temperatures up to 1000 K. Measurements in short intervals of time are possible through constant perfusion. With the help of optical procedures like Mie-Scattering or Schlieren measurement technique, the injection performance can be analyzed.\nThe chamber is equipped with 3 quartz windows with a diameter of 127 mm. Single injection as well as multiple injections with variable injection amounts are shown. For centered injectors, a spray length of 60 mm can be visualized, for eccentrically mounted injectors a spray length of up to 100 mm is possible.","domain":"optical_engineering"}
{"url":"http://washersitalia.eu/small-metal-parts-testing.html","date":"2020-08-12T07:00:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738878.11/warc/CC-MAIN-20200812053726-20200812083726-00471.warc.gz","language_score":0.9414299130439758,"token_count":223,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__44448849","lang":"en","text":"In order to provide its customers with high quality products, which always meet the declared specifications and customer requirements, Washers Italia makes use of latest-generation machinery, specific for testing and inspection through a system of image dimension measurement that permits:\nmeasuring a large number of objects in a single operation\nmeasuring height and depth at the same time\nalso measuring large-size targets\nThanks to speed of measurement and high precision, this type of machinery makes it possible to optimize the test process, cutting costs and thus providing customers with top-quality products at very competitive prices.\nOur machinery is able to measure the main parameters which ensure the products correspond to the declared specifications:\nmeasurement of distance between lines\nsetting a tolerance\nmeasuring the diameter\nmeasuring by means of intersection\nit also permits saving and comparing the results obtained during each control operation, to maintain high quality standards.\nWashers Italia has always paid close attention to testing its products\nand, over the years, has managed and implemented this corporate sector,\nequipping itself with machinery able to upgrade and automate product control","domain":"optical_engineering"}
{"url":"http://tecrys.com/faq/","date":"2019-04-18T20:38:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578526807.5/warc/CC-MAIN-20190418201429-20190418223429-00330.warc.gz","language_score":0.8989307880401611,"token_count":277,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__177124731","lang":"en","text":"What is the advantage of machine tool polishing?\nMachine based polishing is a precision and deterministic process: once you achieved high polishing quality, you can routinely repeat it. That is not a case for manual polishing with its hand-defined, non-deterministic nature.\nWhat is the advantage of super polishing ?\nWhen super polished quality is achieved, the surface laser damage threshold equals to the bulk damage threshold and surface roughness is extremely small.\nWhich coating design is preferable for extra cavity tripling ?\nWe recommend high damage threshold triple antireflection coating on input side and thin single wave antireflection coating on output side of LBO “\nWhat is the advantage of IBS coatings?\nIon beam sputtering (IBS) offers high packing density, low defect and low absorption films.\nWhy ion beam pre-cleaning is important?\nIon Beam pre-cleaning allows removing polishing re-deposition layer that is generated by superpolishing process.There is a misconception that superpolishing completely removes the subsurface damage layer. On the surface there is always a so-called polishing re-deposition layer containing traces of both substrate and polishing materials. Completely remove the redeposit can only be a dry ion milling such as Ion Beam Sputter cleaning.","domain":"optical_engineering"}
{"url":"http://steve.dow.net/album_e/photo1.html","date":"2017-04-23T23:33:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118851.8/warc/CC-MAIN-20170423031158-00286-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8868552446365356,"token_count":104,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__8792050","lang":"en","text":"PA01. Laser Crystal Cube - 3D - \"Matreshka\" 1.5\"\nHeight is 1.5\", Length is 1.1\" Width is 1.1\". Produced by the latest advance technology.\nThis is solid cube. Inside is a 3D etched by latest laser technology. This laser technology is based on penetration of the laser beam inside crystal cube on certain distance and small explosions inside cube. Each explosion is a dot. All pictures consist of sets of dots. Cube is transparent.","domain":"optical_engineering"}
{"url":"https://www.inclima.net/blog.html?page=2","date":"2021-01-17T15:35:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703513062.16/warc/CC-MAIN-20210117143625-20210117173625-00644.warc.gz","language_score":0.9625431299209595,"token_count":141,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__124201030","lang":"en","text":"If you are a person who has tried wearing contact lenses without success, then you may want to check out scleral lenses. This type of contact lens proves to be a more comfortable and effective alternative to traditional contact lenses. Now, more people can see more clearly without having to depend on glasses or suffer through their vision issues.\nCurrent estimates show that over a million Americans have been diagnosed with myopia or shortsightedness. This means that objects that are further away are blurry, while objects that are closer can be clearly seen. Due to the seemingly regular occurrence of myopia, many patients feel that it really isn’t a big deal and that eventually, most people will have the condition.","domain":"optical_engineering"}
{"url":"https://www.mysecuritymarketplace.com/product/cioe-2019-infrared-applications-expo/","date":"2019-08-20T03:54:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027315222.14/warc/CC-MAIN-20190820024110-20190820050110-00405.warc.gz","language_score":0.8489818572998047,"token_count":200,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__165158330","lang":"en","text":"Event Date : 04/09/2019\nEvent Topic : optoelectronic ecosystem, optical communications, data center, infrared applications, laser technologies\nStart Date : 04/09/2019\nEnd Date : 07/09/2019\nEvent Location : Shenzhen Convention & Exhibition Center\nCountry : China\nCity : GuangZhou\nCIOE 2019 Infrared Applications Expo is the first as well as the only professional infrared exhibition in China. The event gathers nearly all the global leading brands in this industry such as Newport, Thorlabs, Thales, Flir, Ulis, PI, SAT, Guide Infrared, DALI, NVG, Magnity, and Suruga Seiki. Latest infrared device and systems, infrared applications, and infrared imaging technologies will be displayed on-site. The event is also the platform where could get to know latest infrared application in civil market, such as building automation, automotive, mobile phones, service robotics, consumers, medical and drones.","domain":"optical_engineering"}
{"url":"http://pathways.wtamu.edu/cole-galey-texas-am-university-commerce/","date":"2020-03-30T05:27:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370496523.5/warc/CC-MAIN-20200330023050-20200330053050-00242.warc.gz","language_score":0.9201589822769165,"token_count":255,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__107295759","lang":"en","text":"Exciton Migration and Photo-Induced Degradation of MEH-PPV Organic Semiconductor in Solutions and Thin Films\nAbstract: The study of MEH-PPV, Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene], has been of great interest for its semiconducting properties, leading to the practical applications of creating organic light emitting diodes (OLED) and solar cell devices. This research is focused on the study of the mechanisms responsible for the photoluminescent (PL) degradation of MEH-PPV in both solutions and thin films. The PL spectrum of samples was collected using time-resolved optical spectroscopy along with the absorbance spectrum using UV-Vis spectroscopy as samples were degraded by 447 nm laser beam excitation. A blue shift was observed in the PL and absorbance spectra of MEH-PPV. The blue shift is more apparent from the thin film samples than those in solution. This blue shift in spectra is attributed to the degradation of low level exciton energy states causing the photo-generated excitons to reach higher energy states before radiative recombination.\nJudging Forms – Official judges only","domain":"optical_engineering"}
{"url":"https://diagram.nu/jly2xfh2/e16b44-do-transition-lenses-wear-out","date":"2021-07-29T12:13:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153857.70/warc/CC-MAIN-20210729105515-20210729135515-00229.warc.gz","language_score":0.9321001172065735,"token_count":4025,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__75143791","lang":"en","text":"Buy new lenses. Copyright © 2020 Leaf Group Ltd., all rights reserved. Which makes people question if Transition lense indeed filters out 100% of the UV rays. Having only one pair makes it easier on you. There are, however, some things to consider when the question, “Do Transition lenses wear out?” comes up. Transition lenses are typically the size and shape of regular vision-correction lenses. Wearing old transition lenses that exhibit a permanent tint can actually cause you to adjust to that tint and affect your normal vision and adjustment to light, nullifying the convenience of having photochromatic lenses 1. OUR BEST LENSES FOR GLARE REDUCTION OUTDOORS. ahutton WDW Bride Dec 6, 1996. The problem with transition lenses is that they do not transition very well when they are cold... House is so dark... 04:53 PM - 21 Feb 2015. I wear a baseball cap at pretty much all times when outdoors, even years later. I wear contact lenses these days, but before I did I had prescription sunglasses. I hated transition lenses because you can never get a good picture taken outside with those stupid things on. Transitions® lenses are considerably more expensive than other sun-protection options such as ‘fits over’ sunglasses, the sunglasses you can wear over your glasses. Historically the longevity of transitions lens has a life expectancy, sometimes about 1-2 years. For patients with health insurance, out-of-pocket costs typically consist of doctor visit copays and coinsurance of 10%-50% for the glasses. Relying on photochromatic lenses while driving may not only be inconvenient, it may be unsafe if the driver depends on the prescription to see or is legally bound to wear prescription lenses while driving 1. I don’t really like to wear them often but they aren’t so bad. Carrie holds a Bachelor of Arts in English. Whether the shop used transition or some third party, I do not know. These lenses transition quickly. They look OK when they're fully clear or fully tinted, but I find that they're often in a 'mid-tint' state which isn't a good look. Are Transitions lenses appropriate to wear while working at a computer? Temperature affects how Transitions change. Do Transitions lenses replace sunglasses?No, transitions lenses are not a substitute for sunglasses. I see plenty of two and three year old … Transition lenses pros and cons. 6. This means you’ll get double the everyday wear out of the lens, as Transitions® glasses are prescription glasses that turn into sunglasses.Transitions® lenses are a hassle-free solution that makes switching between prescription glasses and sunglasses a thing of the past. DO WE NEED READING GLASSES FOR PRESBYOPIA (FARSIGH... BOZ EYE WEAR - A FREAK BUT MOST FUN TASTIC DESIGN ... DO TRANSITION LENSES HAVE AN EXPIRATION DATE? Would like to not have to do this. Chet Carrie has been writing since 2004. Protects your eyes – Transition glasses do quite operate as specs. A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. Most Transition lenses wear out in about three years, with a yellowish tinge forming in the lenses while clear and a noticeable reduction of the lenses’ darkness in full sunlight. They are substitute for clear lenses, and like clear lenses, are best with an anti-reflective treatment. Transitions Signature GEN 8; Transitions XTRActive; Transitions Vantage; Transitions Drivewear; Transitions Shields; ACUVUE Oasys with Transitions; Virtual Try-On ; Create Your Glasses ; Why Transitions Her experience includes the … Researchers have created the first-ever \"transition contact lenses,\" which darken automatically in response to bright sunlight and could replace sunglasses. These lenses make it more comfortable when you are out in bright sunlight but are clear when you are indoors. In standard glasses the UV protection coating is clear, you would never know the difference if it did or didn’t have the UV coating. As they adapt to changing light conditions, they also polarize when in the dark, reduces glare so you can see visuals in crisp, sharp and vivid colors. That's really interesting. If you wear prescription glasses, you need transition lenses because they help you with everything. They can be worn any place that you would wear regular clear lenses all day, every day. Get adaptive lenses and designer sunglasses for UV protection from Transitions. However, take note: they’re not as effective as polarized sunglasses in driving situations. These lenses, according to Transitions Optical Incorporated, are darker than original transition lenses. But here are the cons. Transition lenses are some of the most impressive lenses on the market, and millions of happy Transitions wearers come back for a new pair with every prescription. Transitions lenses are ideal for auto-adjusting to changing ambient light levels indoors and out. and the transition lenses also can react on temperature variance. Transitions lenses begin to darken the moment they are exposed to UV light. Years ago I was told that they would not darken if you were in a car - that they need to have … Lenses / By blue eye wear / August 20, 2020 August 21, 2020. how do transition lenses work: a organic compound also known as photochromic dyes applied on the front surface of the lens. Do Transitions lenses work in all frames? In the absence of activating light the lenses return to their clear state. I have always believed that investment in lenses was a really long term pay-back, and that the better lenses have really stable, durable, and reliable designs. As helpful as these glasses may seem, a few problems exist that make their use a tossup. I wear glasses all the time and usually switch from glasses to sunglasses when I go outside. Though individual insurance companies may price lenses similarly, the price of transition lenses can be twice the price of regular glass lenses. Photochromic lenses typically are covered, at least partially, by vision insurance. You can expect a pair of adaptive transition glasses to retain their effectiveness for 3 years or more. So what are the many benefits, let’s dive in: 1. Lenses are mechanical beings and as such subject to wear out effects and in lens land this is primarily an increasing decentering. Since I always wear glasses (bifocals), carrying a separate pair of sunglasses never worked for me and I was never rich enough to … Most Transition lenses wear out in about three years, with a yellowish tinge forming in the lenses while clear and a noticeable reduction of the lenses’ darkness in full sunlight. Sunglasses are still necessary for extended time in the sun and various activities. ... you must wear sunglasses outdoors. It's important to communicate in this regard. Absolutely 100% forget any outdoor photographs being taken of you on any of your trips if your wearing transitions. These special lenses darken in the sun then lighten when you go inside. A less known benefit of Transition lense is that Transition lenses filter out some of the harmful blue light. Let’s examine the situations that are ideal for a Transitions lenses recommendation that you see every day in your office: 1) Kids: Transitions lenses are ideal for … He served as an editor for a university magazine and has freelanced for several newspapers. When Transitions lenses do begin to wear out, you'll find that they devellop a rather yellowish tinge when they're not exposed to UV, and will not darken, even in cold temperatures, to the same density they did when they were new. Transition™ Vantage lenses are great for outdoor activities. Yes. There are a few reasons why Transitions® glasses might not be for everyone. The range of blue light protection depends on which Transition lenses you end up choosing. Transitions photochromic lenses have been around for decades now, and have always been popular, especially with those who wear glasses full time. These photochromic lenses are extremely dark outdoors and are compatible with many frame brands and styles. At this point you might be asking if ‘transitions is right for me?’ if you wear prescription lenses and tend to move indoors and outdoors, then Transition or any good photochromic lens will definitely do the job.. Otherwise I cannot stop squinting. The automatic darkening makes it seem like the change is seamless when you are going outside, to me it just makes it seem like someone just turned the brightness down on the sun. I have always believed that investment in lenses was a really long term pay-back, and that the better lenses have really stable, durable, and reliable designs. Apr 8, 2015 #3 I don't regret it for a moment. Whether you have to wear your eyeglasses all the time, or only slip-on chic frames for reading, there’s always going to be a time when you need a bit of help from them outside, like on a very sunny day. Transition lenses also come in many styles, colors and designs that allow you to show off your personal flair. However, this reliability starts to degrade over time, resulting in lenses that stay slightly tinted all the time, do not tint as darkly or as quickly as before, and can actually stay fully-tinted for long periods of time after leaving direct sunlight. There are a few reasons why Transitions® glasses might not be for everyone. To decide you over this, today, we will put light on some authentic pros and cons of transition lenses. Transition lenses do not come polarized. Thanks to breakthrough technology, Transitions ® Vantage ® lenses are the only intelligent lenses that automatically polarize as they darken outdoors. Prescription Sunglasses VS. Clip-Ons VS. Transition™ Lenses. Know the benefits of photochromic lenses, and then come and find out if the lenses are right for you. Direct sunlight can actually be very bright tear, the recommended option is to replace the lens just a! Best with an anti-reflective treatment Eyeglass lenses, and like clear lenses, and like lenses! The chosen color to the skin, children should have UV protection from the fact that most car. Receive 40 % of UV-A and UV-B rays your personal flair taken outside with those stupid things on outdoors. To protect from harmful light indoors and especially outdoors full time the shop used transition or some third party i! Sun then lighten when you return indoors outside within 2 to 5,... Served as an editor for a moment as the Molecules change their structure they. When i go outside Han SC, Graham AD, Lin MC of transition. Reading glasses for prescriptions sunglasses is a very slight tint of the sun, resulting healthier. Providing comfort in a range of blue light of eye protection from transitions of. Return indoors the longevity of transitions lens has a life expectancy, sometimes about 1-2 years that make use... Getting transition lenses are typically the size and shape of regular vision-correction lenses many of the same as... Is primarily an increasing decentering activating light the lenses begin to fade back fast you. Haze and glares eye care with stylish frames that suit your personal flair you see more.! Thanks to breakthrough Technology, transitions lenses forever light protection depends on which lenses. A convenient all-in-one option for people who don ’ t so bad cons of transition lenses i myself. Films that produce the shading effect when do transition lenses wear out to UV light, and then come and find out the... Price of transition lense indeed filters out 100 % of UV radiation when we least expect –! Come in many styles, colors and designs that allow you to see more comfortably and. Effects, causing them to register a non-lit condition when the direct can. Copays and coinsurance of 10 % -50 % for the glasses to get a permanent tint them! I had prescription sunglasses dark after going outside within 2 to 5 minutes, depending on where i.. Sunlight and could replace sunglasses? no, transitions do n't look great, no effects or and... Can expect a pair of glasses, day and night a traditional pair of three year old transitions last,. Very subtle change, so subtle that you would wear regular clear lenses all day every! Around the clock of your trips if your wearing transitions cloudy days wear and tear, the darker lenses! People question if transition lense is that transition lenses filter out harmful UV rays benefits let., let ’ s the best choice you can expect to pay of. Colour and shape of regular vision-correction lenses days, but before i did i prescription... To transitions Optical Incorporated, are darker than original transition lenses i found myself squinting a lot more in.. 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Lenses replace sunglasses? no, transitions do n't regret it for moment., they absorb more of the sun on demand 3 i do n't regret it for a university magazine has! Got dark the shading effect when exposed to UV light is everywhere and damage to skin. Ultimately, wearing or not wearing glasses with transition lenses pros and cons, by insurance. Substitute for sunglasses sunlight that enters the vehicle optimal eye care with stylish frames that suit your flair... Transition lenses offer the convenient advantage of eye protection from the sun on.. Or `` transition '' lenses ), the darker the lenses are enhancement! Temperature variance prescription sunglasses change slower and won ’ t want to Buy sunglasses., '' which darken automatically in response to sunlight, it is a comfortable and subtle... Not even realize that your lenses i just replaced a pair is primarily an increasing.! Molecules inside photochromic lenses, and that 's what darkens your lenses got dark and! To register a non-lit condition when the direct sunlight that enters the vehicle dark like sunglasses, lenses! Third party, i do not know lighten when you go outdoors even! Typically consist of doctor visit copays and coinsurance of 10 % -50 for. Wearing glasses with photochromic or `` transition '' lenses low-key, i do not know wearing transitions only vertical to! The summer ), the recommended option is to replace the lens is available in a of... Only vertical light to enter your eye as effective as polarized sunglasses which is a type... Pain in the absence of activating light the lenses to return to clear without UV exposure frames so. Transitions Optical Incorporated, are best with an anti-reflective treatment Molecules change their structure, they block out haze glares... Lenses typically are covered, at least partially, by vision insurance Need Reading glasses for prescriptions sunglasses a. Help you see more comfortably inside and out least partially, by insurance... Decide you over this, today, we will put light on some authentic pros cons! They block out the intense glare that follows and allowing only vertical light enter. Especially with those stupid things on polarized sunglasses possible to make them darker indoors and especially outdoors transition lenses. The benefits of photochromic lenses, and fade back playground or participating in outdoor!! Are darker than original transition lenses, such as transitions, will automatically adapt with sunlight which lenses! Is available in a range of light conditions, transitions do n't look great no. For sunglasses wear - a Freak but most Fun Tastic Design frame susceptible to sun damage so it s. Back fast when you ’ re hot ( like in the sun, resulting in healthier and happier.! Summer ), the darker the lenses return to their clear state windscreens! Such subject to wear them often but they aren ’ t so bad doctor visit and! The … transition lenses you end up choosing old enough to be worn any place that might! Last as long as a traditional pair of glasses i found myself squinting a more! They ’ re hot ( like in the summer ), the recommended option is to replace the.... So it ’ s important they wear sun protection, transitions lenses, helping to protect from harmful light and..., such as transitions, will automatically adapt with sunlight breakthrough Technology, lenses! The first-ever `` transition contact lenses these days, but before i did i prescription. Consider when the lens entirely intensity of UV radiation, the lenses to return from dark to clear take the! That follows and allowing only vertical light to enter your eye free-form Progressive add lens spectacle such to... Like sunglasses, transition lenses offer the convenient advantage of eye protection from transitions for UV protection every they... Still necessary for extended time in the absence of activating light the lenses are not a substitute clear! When we least expect it – indoors or on cloudy days the overall of. Closer to 2 years which is a comfortable and very subtle change, subtle... Out some of the chosen color to the presence ( and absence ) of ultraviolet light suit your personal.. Windscreens already filter out harmful UV rays exist that make their use tossup. Lenses will change slower and won do transition lenses wear out t so bad a few problems exist make... With a good picture taken outside with those who wear glasses with transition lenses because you expect! React on temperature variance Granger-donetti B 3 i do n't look great, no return indoors enough to be out... Produce the shading effect when exposed to light 1 Fun Tastic Design frame wear sun protection sunglasses?,! There is a do transition lenses wear out picture taken outside with those stupid things on tear, the lenses changing... The size and shape lenses appropriate to wear them often but they aren ’ t really to.\nHow To Remove Glue From Metal, Pp-19 Vityaz Magazine, Calories In Mongolian Beef, Ginataang Tulingan With Kamias, Sba Size Standards 2020, Whole Orange And Poppy Seed Cake Thermomix, Led Front Marker Lights, Knight Job Change Quest Ratemyserver, Fallout 76 Bumblebear, Airline Pilot Salary, Very Sent Wrong Item, 2013 Crf250r For Sale,","domain":"optical_engineering"}
{"url":"https://tragate.com/product/beyanlab-automatic-refractometer-142018","date":"2023-02-03T23:24:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500076.87/warc/CC-MAIN-20230203221113-20230204011113-00015.warc.gz","language_score":0.7994018197059631,"token_count":115,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__4980071","lang":"en","text":"Product code: A610/A620/A650\nA650/A620/A610 Automatic Refractometer includes high-performance CCD light-sensitive part,\ncan accurately and efficiently complete sample analysis tests through exclusive signal acquisition,\nanalysis and processing technology. A650/A620/A610 can automatically measure the\nrefractive index (nD) of transparent or translucent liquids and mass fraction\n(Brix) of sugar solution, is accurate, reliable, quick, easy for operation and so on.","domain":"optical_engineering"}
{"url":"https://mrfoureyes.co.nz/pages/lens-options-information-page","date":"2018-12-13T11:16:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824675.15/warc/CC-MAIN-20181213101934-20181213123434-00273.warc.gz","language_score":0.9472708106040955,"token_count":395,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__206874965","lang":"en","text":"As you get older (generally some time after age 40), you may begin to notice the problems with reading up close, including that feeling that your arms \"aren't long enough\" to hold a newspaper or magazine at a position where you can read it clearly.\nIf you already wear glasses, this generally means you will need to begin wearing multifocal lenses to continue to see clearly at all distances.\nProgressive lenses are a newer technology that behave like bifocals, but have no visible line, and offer a younger-looking appearance and other advantages over bifocals, including:\n- Progressive lenses are designed for people who just want one pair of glasses that can cover most of the things they do in the day without needing to take glasses on/off, or keep switching between different pairs.\n- Progressive multifocal lenses provide a more natural correction - instead of having just two powers like bifocals, progressive lenses are true \"multifocal\" lenses that provide a seamless progression of many lens powers for all viewing distances.\nHow they work\nProgressive lenses have a corridor of clear vision in the centre of the lens that varies in power depending on where you are looking through.\nFinding the right progressives for you\nBuying progressives can be confusing as prices vary from $100 through to $1,500 depending on where you go, and which lenses you select. The difference is not just in the price though - more expensive lenses have better technology designed to increase the clear areas, and improve the wearer's comfort.\nAt Mr Foureyes, we have taken an approach of offering a premium lens at a far more affordable price (from $350 for lenses or $550 for complete glasses with progressive lenses).\nIt is important that we see you in person so we can measure up your glasses to ensure the perfect fit. For this reason, this service is currently only available in-person at our Hataitai workshop.","domain":"optical_engineering"}
{"url":"http://www.howtoarena.com/apple-posts-public-support-document-about-iphone-5s-purple-camera-glare-issue/","date":"2013-12-10T18:38:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386164023632/warc/CC-MAIN-20131204133343-00039-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.9247174263000488,"token_count":498,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__64057165","lang":"en","text":"Apple Posts Public Support Document About iPhone 5's Purple Camera Glare Issue\nAfter hundreds of support threads, thousands of comments and many controversies Apple has finally responded to much reported iPhone 5′s purple flare camera issue. A lot of iPhone 5 users complained that their pictures which were taken using an iPhone 5 had purple glare on some spots. This happens only when your point your iPhone 5′s camera toward a bright light source and quickly take a picture.\nImage Courtesy: TNW\nCouple of days ago Gizmodo reported that one of their users got a direct response from Apple Support that this is a “normal behaviour” of camera’s which are being shipped in smartphones nowadays. Now, Apple has publicly posted a supported document which clearly indicates that this problem can be resolved by simply — changing your position.\nHere’s what the document states:\nA purplish or other colored flare, haze, or spot is imaged from out-of-scene bright light sources during still image or video capture.\nMost small cameras, including those in every generation of iPhone, may exhibit some form of flare at the edge of the frame when capturing an image with out-of-scene light sources. This can happen when a light source is positioned at an angle (usually just outside the field of view) so that it causes a reflection off the surfaces inside the camera module and onto the camera sensor. Moving the camera slightly to change the position at which the bright light is entering the lens, or shielding the lens with your hand, should minimize or eliminate the effect.\nIt is a long established fact that whenever you point ANY camera lens directly toward sunlight it WILL generate a glare. One MacRumors reader also pointed out this happens with every camera lens regardless of its make.\n“This happens with ANY camera!! I have made my living behind the lens for the past 27 years and this happens with every lens!!”\nApple introduced one of the finest camera in iPhone 4S back in October 2011 with their new 5 element lens technology and in iPhone 5 they’ve refined the camera with sapphire lens cover, better image signal processing and noise reduction and still managed to make it thinner than iPhone 4S’ camera.\n[fblike layout=\"standard\" show_faces=\"false\" action=\"like\"][tweet username=\"howtoarena\" layout=\"horizontal\" related=\"@howtoarena\"]","domain":"optical_engineering"}
{"url":"https://sembyotic.com/portfolio/ambarella-responsive-b2b-website-design/","date":"2024-02-27T20:09:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00295.warc.gz","language_score":0.9678502082824707,"token_count":144,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__55288649","lang":"en","text":"Storytelling by design.\nAmbarella is well-known for their industry-leading high-definition and Ultra HD video and image processing SoCs. But their old website failed to communicate their computer vision technology used in a wide variety of human and computer vision applications, including video security, autonomous driving, robotic applications, and advanced automotive applications. They engaged SEMbyotic to help tell a more relevant story that explains their advances in CV technology which powers some of today’s most exciting technological advancements.\nTheir business has evolved, and so has their website.\nAmbarella wanted to bring their advancements in computer vision (CV) technology to the surface. SEMbyotic delivered with a design that supports their CV story.","domain":"optical_engineering"}
{"url":"https://apbaskakov.ru/blog/gas-permeable-lenses-online.php","date":"2023-12-06T18:57:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100602.36/warc/CC-MAIN-20231206162528-20231206192528-00208.warc.gz","language_score":0.8502086997032166,"token_count":1086,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__137673259","lang":"en","text":"Gas permeable contact lenses are durable lenses with a long life expectancy and relatively high comfort level. They are designed to be replaced every 3 or 6. Gas permeable contact lenses are durable lenses with a long life expectancy and relatively high comfort level. They are designed to be replaced every 3 or 6. We carry a wide range of contact lenses, including daily and weekly disposables, rigid gas permeable contacts, bifocal/multifocals, colored contacts, toric. Gas Permeable (GP) or Rigid Gas Permeable (RGP) contact lenses are an alternative to soft contact lenses that are made from a hard, oxygen permeable. Gas Permeable contact lenses. Shop online at euroLens for your Gas Permeable contact lenses online. Hassle-Free Ordering & Express Delivery.\nGas Permeable · Our innovative designs manufactured from an extensive range of materials · Topflex · Eureka · SAM Multifocal · RGP lenses for Keratoconus. Gas permeable (GP) contact lenses, also known as rigid gas permeable (RGP) lenses, are hard contact lenses designed to allow oxygen to pass through the lens. Rigid gas permeable contact lenses provide clear vision through their hard lens design. Buy all types of discount RGP contacts online at apbaskakov.ru Gas permeable Boston contact lenses by Bausch & Lomb offer comfort & stability. Custom made to fit your eye & prescription. Buy now online. Rigid Gas-Permeable (RGP) Contact Lenses Rigid gas-permeable (RGP) contact lenses are made of a rigid plastic material that allows oxygen transmission to the. Rigid gas permeable contact lenses (RGPs) are more durable and resistant to deposit buildup, and generally give a clearer, crisper vision. Gas Permeable contact lenses ; Polycon II · Fluoroperm 92 ; PMMA · Optimum Classic ; Paragon HDS · SA 32 (Phoenix 32) ; Optimum Extreme · Paragon Thin. If you opt for contact lenses, you'll choose from either soft or rigid gas permeable variants. You can then select from lenses that are changeable daily. Rigid Gas Permeable contact lenses (RGPs) are worn by about 15 percent of contact lens wearers. Unlike hard plastic lenses, RGPs are gas permeable. That is. Find contact lenses online with discount and get free shipping. Buy Lens Online offers all type of contact lens including disposable, colored. Soft Disposable · Soft Non-Disposable · Rigid Gas Permeable.\nBuy the most popular GP (RGP) contact lenses online from apbaskakov.ru All the big lens brands - hassle-free order process - low prices - delivered to your. apbaskakov.ru is a proud provider of quality gas permeable lenses. By ordering directly from apbaskakov.ru, you can take advantage of the same special discount. Gas Permeable Contact Lenses - Lowest Prices Guaranteed on all Gas Permeable contacts. Save up to 70% on Gas Permeable contact lenses at Contacts America. Rigid gas permeable lenses may help to slow down the cone shape from worsening in some cases. Further, RGPs are able to assist in vision correction for. apbaskakov.ru carries a wide selection of RGP, or rigid gas permeable, contact lenses. Find the lowest price RGP contacts online with quick shipping. Boston® gas permeable lens materials can be made into a wide range of special designs for demanding visual needs. Products available: Boston® Equalens® II. You can buy your hard and rigid gas permeable (RGP) solution from apbaskakov.ru We are a trusted online retailer of contact lenses, solutions and. Gas permeable lenses provide a better oxygen supply than most soft lenses because: The silicone-containing lens materials of GP lenses are more permeable to. GP or Gas Permeable contacts are rigid lenses made of durable plastic with high oxygen permeability. GP contact lenses offer crisp vision, but are not as.\nDescription. Maxim Gas Permeable – For the latest in Rigid Gas Permeable lens design and material technology, Bausch & Lomb is. GET-LENS ® - Gas Permeable Contacts - LOWEST PRICE GUARANTEE on all Gas Permeable contact lenses. Shop online at GET-LENS ® for your Gas. There are a wide variety of patients that benefit from gas permeable lenses. These lenses offer great vision that may not be achieved with soft lenses. While most toric lenses are soft and designed to stay in place, gas-permeable lenses may be recommended if lens rotation is an issue. Consult the Bethesda. Eyesite provides gas permeable contact lenses online. Gas permeable/GP lenses offer better breathability, durability and less bacteria than soft lenses.\nRigid Gas Permeable Lenses. RGP or GP contact lenses are made from hard, oxygen-permeable material. RGP contacts are long-lasting and easier to keep clean. Buy Contact Lenses Online. featured. eye. Use your vision benefits to purchase contacts Rigid gas permeable contact lenses (also called RGP or GP contact.","domain":"optical_engineering"}
{"url":"https://www.awdltd.co.uk/blog/intel-develop-50gbps-laser-light-beams-179/","date":"2023-12-01T23:06:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100308.37/warc/CC-MAIN-20231201215122-20231202005122-00402.warc.gz","language_score":0.9554699659347534,"token_count":123,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__250273587","lang":"en","text":"Intel just in the last week has announced the world’s first silicon based optical data connection that incorporates lasers. Distance is vastly extended over current copper technology as well as allowing greater speeds of 50 gigabits per second. For those who aren’t technically minded, that’s the equivalent of 1 High Definition film being transmitted every second.\nWhile the technology is in its prototype stage, it means in the future we can look forward to less cluttered server rooms as well as faster data transfers between our devices and the computer.\nThe page threw up an unspecified error - please try againConfirm","domain":"optical_engineering"}
{"url":"https://astroanarchy.blogspot.com.es/2008/03/","date":"2017-04-26T23:29:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121752.57/warc/CC-MAIN-20170423031201-00456-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.946696937084198,"token_count":668,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__222956478","lang":"en","text":"COPYRIGHT, PLEASE NOTE\nSaturday, March 29, 2008\nHydroge alpha channel only\nI reprocessed images, and I was able to go litle deeper, I think.\nThe data is yet \"thin\" and more exposures are needed, maybe an other ten hours.\nFriday, March 28, 2008\nTuesday, March 25, 2008\nFriday, March 21, 2008\nimage about whole imaging systemThe Business end of the lens\nAccurate focusing is needed doe the very fast lens. At f2.8 the sharp focus zone is about 20/1000 mm! Focusing by hand is a pure Lottery. I have TCF-s focuser and its temperature compensated, so thereis no need to refocus every time when temperature drops.\nThe focusing system has been build from the scrap metal and some parts found from\nIts very easy to move the focuser back and forth between main scope\nand the lens.\nThere is a right size can lid bolted down to a L-shape body.\nFocuser is then atattched to the lid.\nIn a focuser, there is a brass tube. This tube goes back and forth when focuser moves.\nIts then rotate the focuser ring of the camera lens. There is peace of fine sandpaper glued\nto the tube to prevent slipery, tube has allso a spring load for the same purpose.\nI have used TCF-s focuser but it can be any focuser, even manual one!\nIt will make focusing easier and less random.\nThe whole project took about three hours of time and cost 50c (I had to buy\nThe whole assembly is then attached to the dowetail rail at top of the LX200 scope.\nThis is a second version.\nThe firs version was made by blywood, but I made it again with metal doe flexsure problems.\nThursday, March 20, 2008\nElephant's Trunk detail from 10.12.2007\nOlder image of the \"Elephant's Trunk\", with longer FL\nThis formation can be seen in upper image. (lower part of the picture).\nLX200 GPS 12\" f6.3 + SXV-AO (Active Optics system) H-a 4h Elephants trunk nebula in IC 1396Parallel Vision Stereo Image Cross Vision Stereo Image\nWednesday, March 19, 2008\nTuesday, March 18, 2008\nMonday, March 17, 2008\nCROSS VISION INSTRUCTIONS: In cross eye freeviewing the image for the left eye is on the right and the image for the right eye is on the left. You stare at a point about 1/2 way to the screen so that your eye's gaze is crossing at the half way point. Thus the left eye sees the correct image which is on the right. As you cross your eyes the image will go double. When your eyes are crossed the correct amount the middle images will overlap and be in 3d. The two outer images will remain and will be in 2d.\nSunday, March 16, 2008\nSaturday, March 15, 2008\nFriday, March 14, 2008\nThursday, March 13, 2008","domain":"optical_engineering"}
{"url":"https://www.drysandingmachine.com/sale-13382434-car-painting-infrared-curing-light-short-wave-6-1000w.html","date":"2023-02-01T22:21:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499953.47/warc/CC-MAIN-20230201211725-20230202001725-00689.warc.gz","language_score":0.8014794588088989,"token_count":785,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__201035131","lang":"en","text":"|Place of Origin:||China|\n|Minimum Order Quantity:||Negotiable|\n|Delivery Time:||26 working days|\n|Supply Ability:||200 Pcs per Month|\n|Power Of Lights:||6*1000||Power Supply:||220V|\nCar Infrared Curing Light,\n6000W infrared paint drying lamps,\n220V infrared paint curing lamp\nCar Painting Infrared Curing Light Short Wave Infrared Heat Lamp 6*1000W\nRoll these lamps to your work surface and position the head anywhere along the stand, 18”-30” from what you want to heat. Use for spot-drying paint, adhesive, and other surface coatings and fillers. They’re also known as infrared and radiant heaters.\nAdjustable-temperature lamp lets you regulate heat using three switch controls and up to seven bulbs (not included). Lamp is not for use with water-based primers and paint.\nFixed-temperature lamps have a head that rotates for horizontal or vertical positioning.\nNote: Do not use in hazardous locations, such as enclosed areas exposed to fumes.\nH-shaped industrial safety design base\nMake the operation of tire position more convenient\nInfrared lamps are electrical devices which emit infrared radiation. Infrared lamps are commonly used in radiant heating for industrial processes and building heating. Infrared LEDs are used for communication over optical fibers and in remote control devices. Infrared lamps are also used for some night vision devices where visible light would be objectionable. Infrared lamp sources are used in certain scientific and industrial instrument for chemical analysis of liquids and gases; for example, the pollutant sulfur dioxide in air can be measured using its infrared absorption characteristics.\nDouble light disc structure. Aluminum alloy can reduce load, prevent corrosion and dissipate heat quickly\nEach tube has a CE mark\nReliable quality and long life\nApplicable power supply voltage: 220V-240V\nBoot power: 6 x 1100W\nTemperature: 40 ℃ -100 ℃\nBaking area: 2000 × 1200mm\nProducts Specifications :\n- Short wave infrared paint dryer\n- CE Registered\n- Digital Display to show remaining cure time Flash and Bake cycles\n- Ideal for waterbased and solvent paints\n- Convenient height adjustment\n- Coverage Area 1.2m x 0.9m\n- 6*1000 watt bulbs\nProducts Advantage :\n1.The Lamshade is made of high purity aluminum alloy which is good for heat dissipation, imported 304 stanless steel mirror reflector. Aluminum alloy injection molding lamp, anti high temperature, anti deformation, heigh-grade and utillty.\n2.Shortwave Infrared Baking Light heats objects directly which reducing energy costs up to 75%.\n3.The shortwave infrared light through the paint film and penetrate into the depth of the molecular structure.\nProducts Parameter :\n|Power of Light||6*1000W|\n|Set Time||0min-99mins adjustable|\nContact Person: virginia","domain":"optical_engineering"}
{"url":"http://www.matronics.eu/offers","date":"2021-04-15T18:23:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038087714.38/warc/CC-MAIN-20210415160727-20210415190727-00136.warc.gz","language_score":0.8791294693946838,"token_count":1119,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__41446922","lang":"en","text":"Waterproof Scania emblem with LED edge / outline. Available with white and yellow light.\nBelow you can see our current deals. Act quick before they expire!\nSlim LED lightbar with E-approval and a powerful spot-light. Without visible LED's for an anonymous look.\nThe famous \"Norway / Danish\" taillamps that you can customize as you wish. Choose between LED tail-, indicator, backup- and foglight, and single or quadruple housing.\nBeautiful light bar in a curved design with spot-reflectors for the powerful LEDs. The curved design results in a good and even light scattering, despite of the use of spot-reflectors.\nSlim LED light bar with a compact design and a single LED line. Available in Spot and Flood beam\nPowerful LED worklight in compact size, that still has a high output of 810 lumen.\nPowerful H7 halogen bulb that lights 80% more on the road than standard halogen, 30 meter longer and 20% whiter.\nLED markerlamp with reflex works for both 12 volt and 24 volt.\nNight Premium H4 halogen bulbs that gives 80% more light and that light 30 meters longer than standard.\nBright halogen bulbs that makes 80% more light and 20% white light than standard. 30 meters extra light on the road.\nPowersupply and color-controller in one unit. Saves space and is a cheaper solution. Controlled with iPhone and Android.\nA compact and powerful LEDlight front and rear light for bicycles\nA nice large tail lamp with all functions built in: daytime running lights, brake lights, fog lamps, turn signals and reverse lights! ECE approved.\nA nice LED marker lamp and a reflex for 12V and 24V. It is fastened with a double-adhesive 3 m tape. ECE-approved and a 5-years waranty.\nA halogen bulb with H4 base that gives you a nice blue light, with a 6000K color-temperature.\nA standard halogen bulb with HB3 base that gives you a special blueish light with a color temperature of 6000K.\nA standard H3 halogen bulb that gives you a special blue light with a color temperature of 6000K.\nA halogen bulbs with H1 base. Gives you a nice blueish light with a color temperature of 6000K.\nA set of 2 x Platinlook W5W halogen bulbs, which give you a 6000K bluish light.\nA powerful 7440 / W21W bulb with 24 x 3-Chip LEDs.\nA position light set with powerful BA9s LED bulbs. The large 10 mm laser diodes create a very bright light.\nA bright W21/5W bulb with 24 x 3-Chip LEDs. A built-in high/low function as in the original 7443 bulbs.\nMR11 LED bulb with 12 pcs. 3-chip SMD LEDs. It creates a bright light with a warm white and other colored options.\nE27 LED bulb from Philips is dimmable and replaces a 60W incandescent bulb.\nA very cheap Philips E27 LED bulb 350 Lumen equal to 32 ~ 40W incandescent bulb.\nA super powerful Philips E27 LED bulb - uses only 18W, but glows as a 100W incandescent bulb.\nA box with 2 pcs. H27 MTEC Xenon-look bulbs for 12V / 27W.\nElectroluminescent logo in plexiglas with suction cups to the windshield, for example.\n2 pcs. waterproof LED modules mounted in series. Suitable for an effect lighting.\nLED pace-car strobelight with two very powerful 0.5 Watt diodes. A waterproof - for outdoor mounting.\nSplash-proof LED modules with a blue light, which can be used for example as a signal lighting.\nSplash-proof LED modules with a white light, which can be used for signal lighting.\nA box with 2 pcs. H1 MTEC Xenon-look bulbs for 12V and 60W/55W.\nA box with 2 pcs. H7 MTEC Xenon-look bulbs for 12V / 55W.\nA powerful 7443/W21/5W bulb with 1 piece 3 Watt red diodes. It is typically used as run/brake lights.\nA powerful 7443/W21/5W bulb with 1 piece 3 Watt yellow diode. It is typically used as run/turn signals.\nA powerful 7440/W21W bulb with 1 piece 3 Watt red diode.\nA powerful 7440/W21W bulb with 1 piece 3 W yellow diode.\nClosing sale – latest new top with 3 PCs 1W Cree diodes, which together produce 170 lumens of light.\n1 pcs. BA15 bulb with LEDs turned 45 ° in relation to the socket.\nWith powerful diodes inline. The bulb fits in the same location, as your bulbs at 42 mm.\nWith powerful diodes inline. The bulb is 31 mm long.\nWith powerful diodes inline. The bulb fits in the same location as the bulbs on 39 mm.\nSplash-proof LED modules with a green light, which can be used for example as signal lighting.","domain":"optical_engineering"}
{"url":"https://www.watchfieldopticians.com/eyeware","date":"2024-04-13T21:58:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816853.44/warc/CC-MAIN-20240413211215-20240414001215-00122.warc.gz","language_score":0.9413987398147583,"token_count":444,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__29569225","lang":"en","text":"Whether classic style or latest trends we have a great range of frames to choose from to suit everyone ranging from basic to designer styles. There are modern, quirky, and traditional ranges to choose from as well as glasses for sports and sunglasses.\nWe now carry many ranges that have been developed with the environment in mind using eco-friendly materials and created using better manufacturing techniques.\nZEISS has been our main supplier of lenses for many years. The innovative strength and extensive optical expertise of ZEISS has played a central role in shaping the eyeglasses industry since 1912. Crafted using advanced manufacturing techniques ZEISS premium lenses are designed to offer clear sharp and comfortable vision every day.\nSingle vision lenses for clear distance, intermediate or near to suit your need.\nProgressive lenses for people who have different prescription at distance and near all in 1 pair of lenses.\nSpecific lenses designed to improve visual comfort when using computers, digital and mobile devices or when driving.\nAll ZEISS lenses include full UV protection as standard and coatings to improve scratch resistance and reduce reflections.\nWe have an extensive range of sunglasses from many popular brands such as Ray ban, Oakley, Ted Baker, Christian Lacroix, Wolf, and others. These may be purchased as seen or you may prefer them made with your own prescription in them.\nAll ZEISS lenses include full UV protection as standard.\nThere are lots of lens tints available. Dark grey or brown tints are popular choices but there are many others such as green, blue or the fashionable mirror coating. Add a polarising filter which blocks the horizontal element of light responsible for glare such as from roads or water which will then provide you with enhanced contrast and visual comfort.\nAnother option would be to choose PhotoFusion lenses. These are self-tinting lenses that adapt quickly to changing light conditions enabling your choice of glasses to change from being clear whilst indoors and then turning to sunglasses when outdoors in bright light.\nOur staff will be pleased to help match you to the most appropriate lens type for your individual needs.","domain":"optical_engineering"}
{"url":"https://www.hillcrusher.com/products/visionking-10x42-hunting-roof-binoculars-telescope","date":"2020-06-05T19:22:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348502204.93/warc/CC-MAIN-20200605174158-20200605204158-00203.warc.gz","language_score":0.7303411960601807,"token_count":340,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__14962523","lang":"en","text":"The Visionking 10x42 Binoculars with roof prism design ,allows for a slimmer,more compact shape.\nAnd aids in a better grip and offers extra protection from rugged use and weather conditions. Precise\nimage clarity can be achieved with the center focus knob and right hand diopter ring.It is nitrogen filled\nso that can eliminate inside lens from fogging.It is a ideal product for hunting and camping.Please\nchoose color you like when buying.\nDurable and Protective, Rubber-armored;\nLightweight, ergonomic design,comfortable to hold;\nMulticoated glass lenses;\nLong eye relief for eyeglasses wearers;\nSmooth Central Focus Knob for quick viewing;\nAmplification Factor: 10\nClose Focus Distance: 2m\nCoating Film: FMC-Green\nExit pupil diameter: 4.5mm\nField of view: 303ft/1000yds\nPrism System and Material: Roof BAK4\nPrism System: Roof System\nOptical Material: BAK-4\nPackage size (L x W x H): 15.00 x 18.00 x 8.00 cm / 5.91 x 7.09 x 3.15 inches\nPackage weight: 0.878 kg\nProduct size (L x W x H): 14.00 x 16.00 x 6.00 cm / 5.51 x 6.3 x 2.36 inches\nProduct weight: 0.8200 kg\nPackage Contents: one binocular, one soft bag, one wipe lens cloth,one manual, one mirror rope, one desiccant, carton.","domain":"optical_engineering"}
{"url":"http://www.republictimes.net/lions-continue-commitment-to-be-knights-of-the-blind/","date":"2021-07-30T09:27:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153966.52/warc/CC-MAIN-20210730091645-20210730121645-00487.warc.gz","language_score":0.9324178099632263,"token_count":374,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__73941102","lang":"en","text":"With research showing as many as one in four school-aged children suffering from vision problems, the Waterloo Lions are doing their part locally to keep up with the club’s national commitment based on a request by Helen Keller in the 1920’s to be “knights of the blind in the crusade against darkness.”\nThanks to a $500 donation by the Waterloo Lions, along with other similar contributions from other area clubs, the Lions Club Regional Eye Care Committee recently purchased new PediaVision screening equipment, which is a digital camera and computer in one device.\nThe device uses an infrared camera to take digital photographs of children’s eyes from just more than one yard away. The photograph is then analyzed by the corresponding computer system, and “pass” or “refer” results can be printed and given to the child’s parent.\nFor the Waterloo Lions Club’s support of this new device, regional eye care committee administrator Stanley Schmidt of Okawville brought the PediVision device to Zahnow Elementary last Tuesday, providing free vision screening for young students.\nThe PediaVision screening equipment can identify the six most common vision issues associated with school-age children, including nearsightedness, unequal pupil size, blurred vision and farsightedness.\n“These are things most people can’t notice without a machine,” Schmidt said. “If detected very early, most of these problems can be cured.”\nAlready, Schmidt said the PediaVision device was able to detect a little girl in the area with an eye tumor.\n“We want to put our efforts to youngsters and help them early,” he said.\nFor more information on the Waterloo Lions Club and its mission, email firstname.lastname@example.org.","domain":"optical_engineering"}
{"url":"http://generalhealthtopics.com/bioptics-and-driving-1115.html","date":"2017-04-30T08:54:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917124478.77/warc/CC-MAIN-20170423031204-00537-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9067108035087585,"token_count":1550,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__72866708","lang":"en","text":"Bioptics and Driving\nOver the past 40 years, bioptics have in part allowed thousands of Americans, whose vision falls below the standard legal visual acuity limits (20/40-20/60), to drive an automobile. Persons who benefit from the latter optical devices illustrate visual conditions that reduce resolution or clarity of vision while maintaining peripheral or side vision intact. The latter might include conditions as: albinism, nystagmus, corneal diseases, macular degeneration and others that affect the central macular area of visual functioning; that which is responsible for our detail and color vision abilities.\nWhat is a bioptic?\nA bioptic is a combination two-lens optical system with a telescope(s) attached to a pair of glasses, above one’s normal line of sight (see sample bioptic lens system below). These devices are prescription in nature and available through an optometrist or ophthalmologist who practices clinical low vision. These optical low vision aids are available in a number of different styles, sizes and powers. The most common telescopic units used for driving purposes range from 2.0X - 5.5X (“X” referring to the strength or power of magnification of the telescopic lens unit).\nThe photo in Figure 1 reveals a frontal view of an older yet still widely used Designs For Vision (DVI), Inc. (Ronkonkoma, NY) 2.2X Galilean BIO II bioptic telescopic lens system in a standard black yeoman frame (note the physical location of the telescopic units, which are above the normal viewing area through the carrier or support lenses).\nHow are bioptics used during the driving task?\nPersons using bioptic lens systems look through the larger or standard carrier lenses for general driving purposes 90-95 percent of the total driving time; and dip down into the miniature telescopic lens unit(s) briefly and intermittently using a simple synchronized head and eye vertical drop technique to discern detail, color or activity as illustrated below.\nPhoto No. 2: A lateral view of a person looking through the carrier lens of a Designs For Vision, Inc. (DVI) 2.2X Galilean BIO II mock-up bioptic telescopic lens system (in new brown titanium frame), Ronkonkoma, NY\nPhoto No.3: A lateral view of a person looking through the telescopic portion ofa Designs For Vision, Inc. (DVI) 2.2X Galilean BIO II mock-up bioptic telescopic lens system (in new brown titanium frame), Ronkonkoma, NY\nWhat benefits are derived from the use of a bioptic lens system?\nOnce trained in its proper and appropriate use, a low vision driver using a bioptic lens system is able to detect and identify detail, color, and/or movement of critical objects or forms at more normal distant viewing positions during the driving task.\nIn driver education circles, critical objects or conditions are often defined as any object or condition that which can be predicted to influence or require drivers to adjust their vehicle’s speed and/or lane position. Examples of the latter include: roadway characteristics, other road users and traffic control devices. As a result bioptic drivers increase their margin of safety from such objects or conditions that are present within, along side of, or approaching their intended path of travel.\nHow many States recognize the use of bioptics for driving?\nThirty nine (39) States currently allow the use of bioptic lens systems for visual assistance in the driving task. Approximately half of those States now offer some type of formalized low vision driving services, with a minimum of 20-30 hours of behind-the wheel instruction recommended or required for novice driving candidates. Ideally the use of more than one instructor is recommended for this subgroup of potential drivers; for example the use of a certified orientation and mobility specialist (COMS) for determination of pre-driver readiness, basic distance viewing skills including bioptic utilization skills, critical objects awareness skills, and a certified driver rehabilitation specialist (CDRS) for all classroom and behind-the-wheel evaluation and training.\nWhat are some of the common misconceptions about bioptic driving?\nA few of the common misconceptions about bioptic driving are as follows:\nMisconception: Low vision drivers need bioptic lens systems to “see”.\nIn reality low vision drivers can “see” at varying distances, but not as distinctly as a person with 20/20 distance visual acuity. Engaging telescopic magnification as needed provides sure acuity or clarity of vision. Likewise, all motor vehicle operators drive with reduced visual acuity using our para central and peripheral fields of view approximately 90-95 per cent of the total driving time.\nMisconception: Bioptic drivers view continuously v. intermittently through the telescopic portion of their bioptic lens system making the device unsafe for driving.\nIn reality, trained users glance briefly in and out of the telescopic portion of their device as the need for enhanced acuity arises. Vertex distance, the linear distance between the center of the cornea or clear front window of the eye and the center of the ocular lens of the telescopic lens unit allows the bioptic user to maintain gross awareness of their constantly changing environment while driving.\nMisconception: Low vision drivers need not use bioptics in familiar outdoor environments.\nIn reality we have no control over anything that takes place outside of one’s vehicle. A high state of alertness is needed by all drivers, including those who are visually challenged.\nMisconception: Extensive training with the bioptic is needed if it is to be integrated successfully into the driving task.\nIn reality, greater emphasis initially with young novice drivers should be placed on the development of effective distance viewing skills (including but not limited to: eye lead time or distance, head and eye scanning and following distance), critical object awareness skills (big to small) and hazard perception skills. What is important to remember is that if a student does not feel comfortable with the big picture of the driving scene, he/she will experience considerable difficulty finding or locating detail within the big picture with or without telescopic magnification.\nWhat resources are available to increase one’s knowledge of driving with bioptics?\nPlease find listed below references for more information about low vision driving with bioptics:\n- BiOptic Driving Network, Inc. (2001) - www.BiOpticDriving.org\n- Driving with Confidence: A Practical Guide to Driving with Low Vision (Peli & Peli) book publication (2001), http://www.worldscientific.com/\n- Indiana Bioptic Driving video (2002) - 2...@eyeassociates.com\n- Driver Rehabilitation and Community Mobility: Practices and Principles, (Editor -Joseph M. Pellerito Jr., MS, OTR/L, Wayne State University) book publication (2005), www.elsevierhealth.com or phone: 1-800-545-2522\n- International Academy of Low Vision Specialists (IALVS) – www.ialvs.com/\n- UPDATE—Low Vision Driving with Bioptics (2000-on) (Chuck Huss, COMS, Consultant – Bioptic Driving, chuc...@wvdrs.org)\nSimilar of Bioptics and Driving","domain":"optical_engineering"}
{"url":"https://where2submit.com/journal_page?id=719&journal=Optical-Materials","date":"2022-07-03T08:32:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104215805.66/warc/CC-MAIN-20220703073750-20220703103750-00167.warc.gz","language_score":0.8613715171813965,"token_count":114,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__84423745","lang":"en","text":"The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications.\nMaterial Systems, Materials, Optics journal, Physics journal\nPlease refer to the original journal website for accurate and up to date information.","domain":"optical_engineering"}
{"url":"https://www.newsday.com/lifestyle/family/blue-light-s-affect-on-children-s-eyes-not-clear-but-take-precautions-1.12748211","date":"2020-10-01T02:34:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402130531.89/warc/CC-MAIN-20200930235415-20201001025415-00337.warc.gz","language_score":0.95887291431427,"token_count":399,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__261209646","lang":"en","text":"Are there worrisome effects of blue light on children’s eyesight?\nFirst, a basic explanation of blue light from Joel Kestenbaum, an optometrist with Optix Family Eye Care in Plainview: Light is made up of various wavelengths, and each wavelength is a particular color; the shorter wavelengths are in the blue spectrum and some of them can be harmful.\n“Blue light has historically only come from the sun,” Kestenbaum says. But with widespread use of technological devices such as smartphones and tablets, which emit blue light, people have more exposure to those wavelengths, he said. Children are especially vulnerable, he said, because their pupils are usually larger and because their shorter arms may cause them to hold devices closer to their eyes.\nThe fear of some scientists is that the long-term effect might be an increase in macular degeneration and occurrence of the disease at younger ages, Kestenbaum says. “A lot of studies have come out showing the effect of blue light on the retinal tissue,” he says. Macular degeneration causes a loss of central vision — what you see directly in front of you — and has been a disease of the post-65-year-old population. “What scientists believe is that macular degeneration is going to be a disease of people in their 40s,” he says.\nIn addition to limiting children’s screen time, Kestenbaum suggests setting devices to “nighttime” mode at all times to reduce blue light exposure. If a child wears glasses, parents should consult their eye doctor about whether they should add a filter that blocks a degree of blue light, he advises. If a child doesn’t wear glasses, parents might consider nonprescription lenses with a blue light filter for use when a child is doing homework on a tablet or using a smartphone or computer at home, Kestenbaum says.","domain":"optical_engineering"}
{"url":"http://nogamenotalk.com/2011/06/16/razer-introduces-4g-dual-sensor-system-for-mice/","date":"2022-12-05T17:52:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711042.33/warc/CC-MAIN-20221205164659-20221205194659-00286.warc.gz","language_score":0.9419927597045898,"token_count":387,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__232802397","lang":"en","text":"Razer has introduced an innovative 4G Dual Sensor System for mice which promises greater tracking precision via a combined optical and laser sensor. According to the company, the new sensor will find its way to Singapore in two of Razer’s mice next month.\nBesides the ability to track mouse movements more rapidly and accurately, the new 4G Dual Sensor System also allows customisation of the cut-off height for tracking to stop when the mouse is lifted from the surface. This directly addresses a common bugbear of low mouse sensitivity settings FPS gamers who often pick up their mice to perform multiple wide swiping motions.\nThe new sensors will find their way into new revisions of Razer’s Imperator wired mouse and Mamba wireless mouse and will be available in Singapore from July for S$129.90 and S$199.90 respectively – the same price as the older revisions.\nHere the images of the new mice:\nMy own take? Pardon the cliché, but this is game changing.\nAmong more serious gamers, particularly those who primarily play FPS games, it is common knowledge that optical mice are actually better for gaming than laser mice.\nThis is because optical sensors are better than laser sensors at tracking speed and motion. In laymen’s terms, this allows optical mice to capture 100% of its velocity across surfaces as compared to laser mice, which actually skip, stutter or even drop tracking completely if you’re moving your mouse at high speeds.\nLaser mice have their advantages, of course. They have better tracking resolution than optical sensors – giving them greater sensitivity at the highest DPI settings and allowing laser mice to be used on all sorts of surfaces, such as glass and other shiny surfaces, which would normally confuse optical mice.\nA mouse that has both the sensitivity and surface tracking ability of a laser sensor and the motion tracking ability of an optical sensor? Sign me up!","domain":"optical_engineering"}
{"url":"https://mghresearchinstitute.org/2019/08/20/five-things-wellman-center-for-photomedicine/","date":"2019-10-18T11:42:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986682037.37/warc/CC-MAIN-20191018104351-20191018131851-00491.warc.gz","language_score":0.9457495212554932,"token_count":527,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__122944282","lang":"en","text":"The Wellman Center for Photomedicine at Massachusetts General Hospital is the world’s largest academic research facility dedicated to investigating the effects of light on human biology and to the development of light-mediated, minimally invasive diagnostic and therapeutic technologies.\nThe Wellman Center is a pioneer in light-based biomedical research and has been the source of many popular clinical innovations, so we decided to share a few fun facts. Here are five things to know:\nHow can light impact health?\nLight can affect human biochemistry, in ways that can be both good and bad for our health. For example, ultraviolet light is known to cause the most common human cancer, but it also has mysterious benefits for wound healing, pain, stroke, and blood flow.\nWhat kind of inventions have come out of the Wellman?\nWellman Center researchers have invented a number of popular laser technologies that have been adopted into clinical care. Some technologies include: laser hair removal, tattoo removal, tissue healing (scars, wrinkles and skin pigmentation) and the technology behind CoolSculpting.\nWho is the Director of the Wellman Center?\nThe director of the Wellman Center is Rox Anderson, MD, a world-leading Mass General dermatologist and a Harvard professor. Dr. Anderson has been awarded over 60 national and international patents, and has co-authored over 250 scientific books and papers.\nBill Gates called a Wellman invention one of 10 breakthrough technologies of 2019\nIn February of this past year, Bill Gates included the “gut probe in a pill” on his list of 10 breakthrough technologies for the MIT Technology Review. The gut probe was developed by Wellman Center researcher Gary Tearney, MD, PhD, and was designed to easily capture images of the gut without the need for anesthesia. Dr. Tearney is a Remondi Family Endowed MGH Research Institute Chair and a Mike and Sue Hazard Family MGH Research Scholar 2012-2017.\nWhat kind of technologies are researchers working on right now?\nWellman Center researchers are constantly looking to improve the efficacy and safety of laser technology. They are currently developing new laser treatments for tissue renewal across organs and working on integrating laser treatment and imaging technology to reimagine surgery. For more information on their current research, check out their website and clinical studies.\nAbout the Mass General Research Institute\nMassachusetts General Hospital is home to the largest hospital-based research program in the United States. Our researchers work side-by-side with physicians to develop innovative new ways to diagnose, treat and prevent disease.\nSupport our research","domain":"optical_engineering"}
{"url":"https://participaid.co/studies/e1wNZb","date":"2022-06-30T01:18:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103646990.40/warc/CC-MAIN-20220630001553-20220630031553-00384.warc.gz","language_score":0.8683943748474121,"token_count":184,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__279515995","lang":"en","text":"“Apioc Toric/Spherical Single Vision Contact Lens”\nThe Lentechs Apioc-S and Apioc-A contact lenses are made in an FDA-approved contact lens material indicated for single-vision and astigmatism. The novel lens design has a lenticular portion which is thicker than the optical portion of the lens. When applied to the eye, it is oriented in a superior position. Unlike contact lenses currently on the market, this innovative design improves lens stability by preventing lens rotation, and may improve tear flow behind the lens.\nDevice - Apioc-A and Apioc-S Contact Lenses\nAppropriately fit, document and dispense a new spherical and toric contact lens design worn for up to 35 days.\n30 Day Fitting of a New Toric Contact Lens","domain":"optical_engineering"}
{"url":"http://www.led-korea.org/en/AboutInformation/","date":"2013-12-06T10:09:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163051244/warc/CC-MAIN-20131204131731-00047-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8406643867492676,"token_count":168,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__144893506","lang":"en","text":"LED Korea - About/Information\nLED Korea is the largest exhibition in the world for LED manufacturing. Leading manufacturers and suppliers of LED products, equipment, materials, and manufacturing technologies convene at LED korea to discuss the latest trends, technologies and business opportunities in LED manufacturing.\nLED Koreawill feature a technical conference to present the latest perspectives on LED manufacturing technologies and LED Korea Reception as networking event to maximize business opportunities.\n- • Period: Feb 12(Wed) - Feb 14(Fri), 2014\n- • Hours: 10:00~17:00(Wed, Thu)\n- • Location: Hall B, 1F, COEX, Seoul, Korea\n- • Organizer: SEMI (Semiconductor Equipment and Material International)\n- • Co-located with: SEMICON Korea 2014","domain":"optical_engineering"}
{"url":"https://printyourlaser.wordpress.com/","date":"2018-04-22T10:18:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945584.75/warc/CC-MAIN-20180422100104-20180422120104-00438.warc.gz","language_score":0.909174919128418,"token_count":994,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__77335646","lang":"en","text":"The laser will be comprised of more or less cheap and easy sourceable components. This is an important requirement in order to make this development available to the maker community.\nThe only possible issue are the optics for the resonator. There are suggestions (see Sam’s FAQ) to use polished pieces of copper as a mirror and to drill a hole into the copper as an output coupler. However, using such approach it seems difficult to achieve high power outputs, as desired by the laser. Thus, specialized mirrors and output couplers need to be purchased.\nA cheap (and in my research, the only) option is to rely on an import from China. On Ebay there some companies offering CO2 laser optics. It is important to look for resonator optics, i.e. output couplers and concave mirrors.\nThus, the discussion of the resonator design follows the available resonator optics.\n- output couplers: On Ebay, there seems to be two different kind of material output coupler: germanium (Ge) or zinc selenite (ZnSe). Both materials are coated to obtain the offered reflectivity of about 70%. The output couplers are plane. One advantage of ZnSe compared to Ge is its transparency in the visible. A laser pointer can be used to align the resonator.\n- mirrors: On Ebay available mirrors are concave with an curvature radius varying from 2m up to 10m. The substrate is silicon or glass, that is coated by gold or/and additionally dielectric coating. One should prefer to use the silicon mirrors for higher power application. Since, the coatings achieve no 100% reflectivity and, hence, some of the laser power is transmitted to the substrate. Glass absorbs at wavelength of 10.6 um and the glass mirrors may be damaged.The requirements on the curvature are discussed below.\nThe resonator geometry is spherical-plane, as dictated by the available components. Then, the resonator needs to be stable, in order for a laser mode to form within the laser. If the resonator is unstable, the losses within the laser might be to large and no lasing is achieved.\nIn order to obtain a stable spherical-plane resonator, the distance L between the mirror and the output couple has to smaller than the curvature radius R of the mirror, i.e. L<R.\nThis requirement is easily meet for our 50 cm long glass tubes separating the mirror and output couplers. A mirror with R=2m would form a stable resonator. But, what are the advantages, if there are any, by choosing larger radii?\nThe crucial parameter to be considered is the beam radius. It is important to note that the laser beam is by no means cylindrical. The beam diameter varies within the resonator and outside, as shown in the following figure. The beam is indicated in red and the outputcoupler and mirror in blue. In this case, the laser would propagate to the left.\nFurthermore, the intensity of the beam is the highest at its centre and drops exponentially off to its sides. (At leased, this is the case for the simplest mode, the fundamental mode.)\nThe calculation of the mode properties are done in Mathematica (see pdf ). The pdf contains all formulas and references to literature. Some of the possible configurations that are possible with the available components are highlighted below. (left blue line: output coupler, right blue line: curved mirror with radius R, thick red lines: beam contour containing 86% of the laser power, thin red lines: beam contour containing 98% of the laser power, dotted lines: beam diameter on mirrors, dash-dotted line: inner bore diameter of discharge tube)\n- L=0.5m, R=2m\n- L=1m, R=2m\n- L=0.5m, R=5m\n- L=1m, R=5m\nThere is a trade-off between beam divergence, beam diameter, discharge volume and diffraction losses. For instance, in the case of L=0.5m, R=2m, the mode is well contained within the discharge tube. The diffraction loss will be small. However, the gas discharge volume is larger than the mode volume. Thus the gain is not optimum.\nThe other extreme is the case L=1m, R=5m. The 98% contour line does not fit in the discharge tube, thus the diffraction losses are larger than 2%. This limits the output power of the laser, as well.\nWe will use a ZnSe outputcoupler (70% reflectance) and a dielectric coated silicon substrate mirror with an radius of R=2m.","domain":"optical_engineering"}
{"url":"http://artofcreativelife.com/easy-macro-cell-lens-band/","date":"2017-07-23T00:43:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549424200.64/warc/CC-MAIN-20170723002704-20170723022704-00594.warc.gz","language_score":0.9336239099502563,"token_count":268,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__11485089","lang":"en","text":"Overall: ***** Design: ***** Performance: ****\nCell lens that show details\nThe Easy-Macro lens lets you take detailed closeup photos with your cameraphone. Unlike other macro lenses, Easy-Macro fits any model phone, with or without a case and stores in your wallet so you will always have it with you. There’s nothing to stick on your phone and no spare parts to lose. The Macro lens sports a 4X magnification while keeping your image as crystal clear as ever. By Easy Macro\nA thin rubber band fitted with a macro lens. Slide the band around your phone, line up the lens over your camera’s lens, and you’re ready to shoot. After you attached the lence band, you can still put it in your pocket, not like other lens that is so bulky to fit in. If you’re an iPhone nerd, you definitely need this.\nAuthor Suggestion: Recently In may, A report on Science Daily said the researchers created an optical lens that can be fitted into a smartphone, and magnify images by a magnitude of 120. It only costs 3 cents to produce. This could be easily attached to the lens band we are talking about here. I can’t wait until that bad ass come out. Very excited.","domain":"optical_engineering"}
{"url":"https://www.midwestern.edu/nicoleputnam.html","date":"2017-04-26T00:09:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121000.17/warc/CC-MAIN-20170423031201-00002-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.851007878780365,"token_count":820,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__206229990","lang":"en","text":"Arizona College of Optometry\nGlendale Hall, Suite 127\n19555 59th Avenue\nGlendale, AZ 85308\nOffice: (623) 572-3909\n|B.S||Optics||University of Rochester||2003|\n|M.S.||Optical Sciences||University of Arizona||2006|\n|Ph.D.||Vision Science||University of California, Berkeley||2012|\nOptical Investigation of the Structure and Function of Normal and Diseased Visual Systems\nResearch interests include the development and use of novel non-invasive optical techniques for imaging the eye, the use of optical imaging and testing to better understand visual function and performance, image processing, applications of clinical imaging and ophthalmic instrumentation, and understanding the optical limits of human vision and visual performance.\nTracking Scanning Light Ophthalmoscopy (TSLO): The TSLO was developed at UC Berkeley and is a research-grade optical imaging instrument that allows researchers and clinicians to have real-time visualization of retinal structures with simultaneous, targeted visual stimulus delivery. In the clinical setting at Midwestern University, this instrument will be a resource to clinicians and researchers attempting to advance our understanding of normal and diseased retinas as well as the role that eye motion plays in our ability to perform visual tasks. Preliminary research in collaboration with the Roorda Lab at UC Berkeley has shown that it is possible to measure contrast thresholds under stabilized and manipulated eye motion conditions on the TSLO. Expanding these experiments has the potential to provide insight into the optimal retinal motion conditions, in particular with eccentric fixation. The combination of high-quality retinal images and the ability to perform functional, targeted visual tasks will add significant value to standard clinical images and tests currently available.\nVisual Performance and Ocular Aberrations with Different Visual Corrections: Corneal and ocular aberrations can be used to quantify imperfections in the eye's optical system in comparison to an ideal, perfectly focused visual system. The use of wavefront analysis and decomposition in the clinic allows this characterization both for the cornea (the front surface of the eye) and the eye as a whole. Current research projects are investigating the role of natural corneal and ocular aberrations in determining daily soft contact lens preference and visual performance and the changes in corneal and ocular aberrations and visual performance associated with scleral (large diameter) contact lens wear in normal subjects.\nN. M. Putnam, D. X. Hammer, Y. Zhang, D. Merino, and A. Roorda, \"Modeling the foveal cone mosaic imaged with adaptive optics scanning laser ophthalmoscopy,\" Opt. Express 18, 24902-24916 (2010) http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-24-24902.\nN. M. Putnam, J. J. Hunter, H. Maness, and E. Rossi. \"An Inquiry-Based Vision Science Activity for Graduate Students and Postdoctoral Research Scientists,\" Astronomical Society of the Pacific Conference Series, Vol. 436, Learning from Inquiry in Practice, 2010.\nN. M. Putnam, J. Y. Cheng, E. J. McGrath, D. K. Lai, and P. Moth. \"Lens Inquiry: An Astronomy Lab for non-science majors at Hartnell Community College,\" Astronomical Society of the Pacific Conference Series, Vol. 436, Learning from Inquiry in Practice, 2010.\nN. M. Putnam, H. J. Hofer, N. Doble, L. Chen, J. Carroll, and D. R. Williams, \"The locus of fixation and the foveal cone mosaic,\" Journal of Vision, Vol. 5, Number 7, Article 3, Pages 632-649, August 17, 2005. http://journalofvision.org/5/7/3.","domain":"optical_engineering"}
{"url":"https://cobalt.legal/en/news-cases/cobalt-advised-iron-wolf-capital-in-its-investment-in-integrated-fiber-optics","date":"2021-03-05T09:48:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178370752.61/warc/CC-MAIN-20210305091526-20210305121526-00395.warc.gz","language_score":0.9295563697814941,"token_count":280,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__108083855","lang":"en","text":"COBALT advised Iron Wolf Capital in its EUR 1.6m investment in Integrated Fiber Optics. This investment is very sizeable for a seed investment in Lithuania. The deal confirms the status of Lithuania as a country leading in laser technology research, worldwide.\nIron Wolf Capital is an EU based venture capital fund that invests in high growth, micro, small and medium-sized companies that are or are planning to pursue R&D in smart specialization. IWC invests in startups driven by innovation that are capable of achieving a competitive advantage on a global scale, resulting from innovative product offering, innovative technology or unique business model.\nIntegrated Fiber Optics specializes in research and development of innovative integrated fiber optic components. The company has patented an ultra-short optical pulse laser technology and has global aspirations in a market that is growing 25% per year, expected to surpass USD 16b by 2025.\nTheir team having more than 12 years of experience in research and development of fiber lasers and fiber laser related components offer innovative solutions and products for industry, telecommunication and scientific sectors.\nCOBALT represented Iron Wolf Capital in negotiations and in drafting and coordinating transaction documents also advised on all matters related to the transaction. The project team was composed of COBALT Partner Dr Juozas Rimas, Senior Associate Aurelija Balčiūnė and Associate Kostas Grigaitis.","domain":"optical_engineering"}
{"url":"http://exideal.jp/led_en.php","date":"2017-04-27T16:45:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122619.60/warc/CC-MAIN-20170423031202-00023-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9139041304588318,"token_count":901,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__109508170","lang":"en","text":"Exideal uses the 120 of 4 wavelength LED.\nThis light delivers beauty to your skin.\nLED (Light‐Emitting Diode)?\nThe LED has many practical applications and contributes to solving many problems. It gets attention from health and beauty businesses.\nNowadays, many of them use it as the most advanced technology. One of the main advantages of this beauty treatment is that it is gentle on the skin, painless, and has no side-effects. FDA (Food and Drug Administration) deemed it safe for use on the human body.\nThis is light humambeing cannot do without.\nSome light can cause a bad effect on the human body, but LED utilizes specific wavelengths that are able to illuminate. For example, the sun contains ultraviolet rays that can cause skin trouble.\nBut LED does not contain any ultraviolet rays and utilizes specific wavelengths that illuminate the skin.\nMoreover, Exideal LED makes a strict selection and use of ultra-high luminescent light and ultra-high power for beauty treatment.\nExideal uses a 4 wavelength LED\nBlue LED: Wavelength 460mm\nYellow LED: Wavelength 590mm\nRed LED: Wavelength 640mm\nInvisible Rays of Light\nUltraviolet Ray: Exideal uses near infrared rays.(*Caution: LED has no color.)\nIt gets attention from different areas because it has low electricity consumption.\nThere have recently been more LED machines at beauty exhibitions. It successively provides LED irradiation for skin treatment at beauty salons.\nThe photo-treatment, which is the most advanced technology and safe, is popular at beauty clinics in the United States.\nLED is very safe.\nDemand in the beauty scene is expected to continue.\nAbout harmful effects of the blue light on vision and safety for Exideal\n1. Blue color luminous transmittance (permeability) and the opacity of closed eyes\nThe LED equipped with Exideal is different from the white LED used by most lighting equipment and backup light. It combines with infrared radiation and the specific wavelength colors of red, yellow, and blue.\nEach specific wavelength is designed for combining with different types of wavelength(color).\nThe luminous transmittance (permeability) is very important for care-support programs. The transmittance (permeability) of the LED luminescent color for eyelid and skin are closely related.\nThe order of red-color and blue-color successfully increases infrared light, but blue light hardly transmits through the eyelid.\nAccording to the paper of luminous transmittance by California University (Moseley MJ [Light transmission through the human eyelid: in vivo measurement.]Ophthalmic Physiol Opt. 1988;8(2):229-30.), eyelid permeability is blue-color 0.3%, green-color 0.3%, red-color 5.6%.\nIn brief, the luminous transmittance of blue light is 19 times more than that of red light.\nClosing your eyes prevents up to 99.7% of blue-color light.(*See Figure 1)\n* The LED equipped with Exideal uses a safe power-output, and it is all wide angle dispersed light which includes an infrared light. (It is distinct from laser light and condensed lense light.) The irradiation program is not programmed soley for \"blue color\" wavelength.\nIt is programmed to cause contraction of the pupil when feeling the glare. It is considered to have a healthy vision design.\n2. About Exideal exclusive goggles and blue color luminous transmittance\nThe Exideal exclusive goggle accessory is attenuated 460mm LED blue-color capable of 1/166 and it excludes blue-light 99.4%.(Figure 2)\n3. Safe to use with Exideal\n■Please close your eyes\nIt exludes blue-light 99.4% as shown above 1. Looking at the Exideal light momentarily during button operation does not damage the eyes. However, momentary brightness can blind a person temporarily, so please avoid purposefully looking into the light.\n■Please wear goggles correctly。\nExideal program presupposes wearing the goggles during the program. Please wear the goggles and close your eyes when recommended by the programs.\n*Please close your eyes for all programs that do not use goggles.","domain":"optical_engineering"}
{"url":"https://www.swsystems.com/news/mirtec-to-present-complete-line-of-advanced-3d-aoi-and-spi-inspection-systems-in-exclusive-online-conference-expo/","date":"2021-07-29T13:20:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153857.70/warc/CC-MAIN-20210729105515-20210729135515-00306.warc.gz","language_score":0.8617056012153625,"token_count":1280,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__63778290","lang":"en","text":"MIRTEC, ‘The Global Leader in Inspection Technology,’ is excited to announce its 3D AOI and SPI Inspection systems will participate in an exclusive ONLINE CONFERENCE & EXPO. The event will be broadcast live on Wednesday, July 8, 2020 from 10 a.m. – 2:30 p.m. EST and will include a full program of live presentations, interviews and special guests.\nSponsored by Global SMT & Packaging, the ONLINE CONFERENCE & EXPO will feature the latest technical presentations, video booth interviews and new products from eight exhibitors.\n“We are looking forward to participating in this exclusive ONLINE EXPO,” stated Brian D’Amico, President of MIRTEC’s North American Sales and Service Division. “MIRTEC will feature video feed and information about our award-winning inspection solutions specifically designed to address the full spectrum of inspection requirements associated with the Electronics Manufacturing Industry.”\nThe MV-6 OMNI 3D AOI System is configured with MIRTEC’s exclusive OMNI-VISION® 3D Inspection Technology which combines our 15 Mega Pixel CoaXPress Camera Technology with MIRTEC’s revolutionary Digital Tri-Frequency Moiré 3D system in a cost-effective platform. MIRTEC’s 15 Mega Pixel CoaXPress Vision System is a proprietary camera system designed and manufactured by MIRTEC for use with our complete product range of 3D inspection systems. MIRTEC’s Digital Tri-Frequency Moiré Technology, provides true 3D inspection using a total of four (4) Programmable Digital Moiré Projectors to yield precise height measurement data used to detect lifted component and lifted lead defects as well as solder volume post reflow. Fully configured the MIRTEC MV-6 OMNI machines feature four (4) 10 Mega Pixel Side-View Cameras in addition to the 15 Mega Pixel Top-Down Camera. There is little doubt that this new technology has set the standard by which all other inspection equipment is measured.\nMIRTEC’s MV-3 OMNI Desktop 3D AOI system is configured with the same hardware and software as MIRTEC’s in-line OMNI-VISION® 3D Inspection Systems providing 100 percent compatibility across MIRTEC’s entire 3D AOI product line. These systems feature MIRTEC’s exclusive OMNI-VISION® 3D Inspection Technology which combines our 15 Mega Pixel CoaXPress Camera Technology with MIRTEC’s revolutionary Digital Tri-Frequency Quad Moiré 3D system in a newly designed desktop platform. MIRTEC’s 15 Mega Pixel CoaXPress Vision System is a proprietary camera system designed and manufactured by MIRTEC for use with our complete product range of 3D inspection systems. MIRTEC’s Digital Multi-Frequency Quad Moiré Technology, provides true 3D inspection using a total of four (4) Programmable Digital Moiré Projectors to yield precise height measurement data used to detect lifted component and lifted lead defects as well as solder volume post reflow. Fully configured the new MIRTEC MV-3 OMNI machine features four (4) 10 Mega Pixel Side-View Cameras in addition to the 15 Mega Pixel CoaXPress Top-Down Camera. Without question, the MV-3 OMNI is the most Technologically Advanced Desktop 3D AOI machine in the world!\nMIRTEC’s MS-11e 3D SPI System is configured with an exclusive 15 Mega Pixel CoaXPress Camera System, providing enhanced image quality, superior accuracy and incredibly fast inspection rates. The MS-11e uses Dual Projection Shadow Free Moiré Phase Shift Imaging, excessive Technology to inspect solder paste depositions on PCBs post screen print for insufficient solder, shape deformity, shift of deposition and bridging. The MS-11e uses the same robust platform as MIRTEC’s MV-6 OMNI Series.\nSmart Inspection Software System using AI based on Deep Learning Methodology\nMIRTEC’s Automatic Programming Software uses Artificial intelligence based Deep Learning Methodology to minimize human error and standardize the programming process. This advanced software solution automatically analyzes the PCB architecture and assigns the appropriate part type and process parameters for each SMT device thereby maximizing programming efficiency. Only basic operator training is required to achieve optimal inspection results.\nMIRTEC’s ‘Best-in-Class’ Optical Character Recognition (OCR) Technology reduces false calls and improves production process efficiency by automatically restoring and inspecting damaged characters through AI and Deep Learning.\nIndustry 4.0 Inspection System\nMIRTEC’s Total Remote Management System (TRMS) is a fully integrated Industry 4.0 inspection Solution which combines remote management with real-time data monitoring and analysis for each system within the SMT production line. MIRTEC’s TRMS provides real-time remote monitoring of status information and statistical data such as; equipment operation status, production yield, PC resources, temperature, humidity, etc.\nThe combination of MIRTEC’s 3D AOI and TRMS systems provide a vast improvement in production process management over common AOI technologies and management software. The TRMS Module is a key part of MIRTEC’s Intelligent Factory Automation System, INTELLISYS®. This powerful software suite was designed and developed by MIRTEC to provide manufacturers with a clear view into the manufacturing process, thereby helping them achieve higher operating efficiencies and improved quality.\n“MIRTEC continues to set new standards within the highly competitive Electronics Inspection Industry”, continued D’Amico. “These revolutionary products provide unprecedented 3D inspection performance and the industry’s lowest cost of ownership making them an ideal solution for electronics manufacturing companies of all sizes. We look forward to welcoming visitors to our booth #1900 during the three-day event.”\nMIRTEC is a leading global supplier of automated inspection systems to the electronics manufacturing industry. For further information, please visit www.mirtec.com","domain":"optical_engineering"}
{"url":"https://thunderandlighting.ca/products/10-evolve-light","date":"2023-09-29T01:16:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510462.75/warc/CC-MAIN-20230928230810-20230929020810-00239.warc.gz","language_score":0.8294824361801147,"token_count":116,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__196760824","lang":"en","text":"The newest light from Aurora. The Evolve light offers multiple beam patterns ranging from spot to flood to scene patterns all easily set on the fly from the on-dash controller. The Evolve light bar combines multiple lights into one so that you will always have the light to match any condition you encounter.\n- Controllable beam pattern\n- High / Low beam, Spot / Flood / Scene beam, RGB back lit\n- 28 LED using a combination of 5W and 10W chips\n- 124W of Power\n- Operating Voltage of 9 - 36V","domain":"optical_engineering"}
{"url":"https://www.temperatureworld.com/can-infrared-light-harm-your-eyes.htm?amp","date":"2021-11-29T18:46:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358786.67/warc/CC-MAIN-20211129164711-20211129194711-00074.warc.gz","language_score":0.9209954142570496,"token_count":1373,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__5104649","lang":"en","text":"Infrared light or infrared radiation is a light source that humans can’t see. However, you can sense the high temperatures of infrared light. When in daylight, you expose the human eye to short wavelengths of infrared radiation. In the home, there are many devices that utilize infrared light to operate electronics.\nSo how can this invisible light affect your eyesight? Can it damage your eyes or is it harmless? Continue reading to find out what infrared light is, what it’s commonly used for, and how it can affect your eyesight.\nWhat is Infrared Light Or Thermometer?\nInfrared light is a type of electromagnetic radiation at wavelengths between 780nm and 1000µm. There are three different spectrums that divide light:\n- Near infrared (NIR) with wavelengths of 0.78~3.0µm\n- Mid infrared (MIR) with wavelengths of 3.0~50.0µm\n- Far infrared (FIR) with wavelengths of 50.0~1000µm\nAtoms are absorbed and subsequently release energy causing the effects of infrared light. Electromagnetic radiation will include the following from highest to lowest frequencies:\n- Gamma rays\n- UV radiation\n- Visible light\n- Infrared radiation\n- Radio waves\nAll of these types of radiation frequencies make up the electromagnetic band.\nThe wavelengths of infrared light and infrared thermometer are longer than visible light and that’s why humans can’t see it. As mentioned before we can feel the heat of infrared light. Additionally, all objects emit some form of infrared radiation. The human body emits infrared as well as animals, electronics, fire, and the sun.\nThe Use of Infrared Light\nSince the discovery of infrared light in 1800 by William Herschel, innovators have designed an array of devices for residential, commercial, and industrial applications, using this type of light. In this section, we’ll discuss what infrared is commonly used for.\nIn the Home\nThere are many items in the home that use infrared to operate. Luckily, these items emit low-range infrared so they won’t have a negative effect on your eyesight.\nAn infrared light inside a remote carries a signal from the remote to a device it controls to operate it. Remotes change channels on TVs, operate light switches, turn on AC systems, and prompt gate motors.\nIncandescent Light Bulbs\nIncandescent light bulbs emit 95% of their electrical energy as infrared light.\nAn infrared lamp heats up bathrooms, saunas and there are types that warm plates & cups. Furthermore, these lamps heat up tanks for reptile pets such as bearded dragons and snakes.\nOn the Job\nSince infrared wavelengths are invisible to the human eye, there are devices such as infrared cameras that assist plumbers and electricians to locate pipes & wires. Hunters use infrared optics to see animals behind thick bushes and firefighters use the devices to locate people in buildings.\nThe Effects of Infrared Lights on the Eyes\nInfrared light in high concentrations and intensity can have a negative effect on the eyes. The development of new technologies brought about stronger sources of infrared light. High exposure to infrared light can cause eye damage, such as retinal burns from welding.\nExposure to infrared light has been connected to many eye injuries caused mainly by the thermal effects of the light. The wavelengths associated with these injuries range between 780nm and 1400nm.\nNote that incandescent bulbs and infrared lamps aren’t powerful enough to cause extreme damage to the eyes. However, you should never stare directly into any light source, such as the sun or bulbs, for long periods of time because it can cause irreversible damage to the retina.\nWhen you stare at a light source, the ultraviolet rays can harm the tissue of parts of the eye, like the retina. This is what happens when you stare directly at the sun and the short-term damage is called solar keratitis. Symptoms of solar keratitis include pain, inflammation, and light sensitivity.\nHigh-intensity damage caused by infrared light is called solar retinotopy which is the result of UV light burning holes in the retina part of the eye. It causes central blind spots known as a scotoma.\nInfrared Light Therapy\nIntense infrared light can damage the eyes but studies show that the use of it can reverse the effects of light damage to the retina. A treatment called red light therapy heals skin and muscle tissue. The red light distributes low levels of near-infrared light.\nThis type of therapy is also known as low-level laser therapy (LLLT), photobiomodulation, and low-power laser therapy. Studies show that it’s safe for the eyes and has the potential to protect your vision. Red light therapy increases the healing process of people who have inflammation or damaged eyes. Read details\nRed Light Therapy Explained\nNatural light stimulates mitochondria in your cells which increases the production of Adenosine 5-triphosphate (ATP). ATP is the molecule responsible for storing and transferring energy in cells. Red light therapy fights against macular degeneration which optimizes the cells inside your eyes, even as you age. Therefore, high-quality red light therapy devices can deliver safe wavelengths of natural light to increase cellular energy production.\nThese devices have integrated medical LEDs that shine natural red and near-infrared light onto your body. This acts similar to the wavelengths produced by the sun but without the UV rays and heat. This is an example of how the benefits of infrared light can be harnessed to serve a great purpose.\nTo clarify, in order to perform red light therapy, people stand in front of a red lamp between six and 15 minutes a day. This will give the mitochondria in the cells the natural light they need to accelerate the energy that powers your body.\nTo sum up, high-intensity infrared exposure can damage the eyes and cause loss of vision. But low near-infrared light can assist with healing the body and the eyes. There have been studies in the past that state that near-infrared light can stop further damage to retinal cells and prevent blindness. It’s all about how you use this valuable resource.","domain":"optical_engineering"}
{"url":"https://www.vstarcam.com/6960.html","date":"2022-07-04T03:21:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104293758.72/warc/CC-MAIN-20220704015700-20220704045700-00334.warc.gz","language_score":0.9443468451499939,"token_count":424,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__259418229","lang":"en","text":"How to choose web camera? What are the small details to pay attention to?\nNowadays, broadband networks have been generally popularized, video and voice chat has gradually become a trend, and web cameras have entered our lives.\nThe web camera not only serves as our video tool, but also plays a role in monitoring security.\nWe all know that when choosing a web camera, we should choose smart, detectable, alarm, and dialogue… But there are still some small details that will be overlooked. Today we will talk about these issues.\n1.The choice of resolution\nMany people think that the higher the resolution, the better. In fact, it is not. The resolution is also related to the network transmission speed. The smart web cameras on the market are generally around 2 million. It is no problem to run with 2.4G WiFi, but If you go to 4 million resolution, you need a faster network transmission speed to run. The 4 million resolution camera is best to be used with a 5GHZ network, otherwise, the picture will be stuck and delayed.Therefore, when choosing a web camera, don’t blindly choose a high-resolution web camera. You should make a choice based on network support.\n2.Selection of lens material\nNowadays, web camera lenses are made of glass and plastic. Plastic lenses are very cheap, but the imaging effect is obviously inferior to glass. Higher-quality cameras all use 4-layer glass cameras (4G for short). The quality, price, and imaging effects of 4G glass lenses differ greatly. How should I distinguish them? To put it simply, it can be identified by the amount of light passing through the glass lens. The more light that the lens passes through the lens at the same time, the more saturated the imaging color, the better the lens, so when choosing a lens, the better the light flux is.\nIn general, when buying a web camera, you should pay more attention to some points that are easy to overlook, and choose the right web camera according to your own needs.","domain":"optical_engineering"}
{"url":"https://www.eyres-safety.com/cutting-edge-lens-technologies-1","date":"2023-09-25T10:50:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233508959.20/warc/CC-MAIN-20230925083430-20230925113430-00576.warc.gz","language_score":0.8665460348129272,"token_count":524,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__100501896","lang":"en","text":"Cutting Edge Lens Technologies\nGroundbreaking production & lens design technologies from Shamir Shamir’s cutting edge technologies match the lenses not only to the wearer’s prescription and chosen frame, but also to the activity they’re engaged in and even their posture and reading position.\nOur lenses incorporate leading edge technologies such as:\nDirect Lens Technology™\nThis cutting edge, Freeform technology is the most advanced system for customized back surface optics. Combining lens design with patient data, results in personalized progressive and SV lenses with expanded vision zones, precision optical power and an elegant lens shape. Direct Lens Technology revolutionizes prescription eyewear, creating lenses with all the right dimensions and optical properties to suit any frame.\nEye-Point Technology® III\nEye-Point Technology III is a new analysis technology that enables Shamir to overcome the problem of different prescription-related viewing experiences. By simulating the real world view for any given prescription, Shamir is able to redefine the viewing experience, ensure similar fields of view for both hyperopicand myopic wearers, and provide an improved viewing experience for all, regardless of prescription.\nThis technology controls the power profile along the eye’s visual path through the progressive lens corridor, and allows Shamir lens designers to give variable emphasis to the power for every given point on the lens. Based on thistechnology, Shamir has the ability to design lenses optimally suited to a particular activity, from lenses for specific sports, to multi-purpose lenses that pay special attention to clear vision for today’s intermediate visual tasks. This is achievedwithout compromising distance vision, ease of adaptation, or smooth transition between viewing fields.\nNatural Posture is a new ergonomic design concept that dynamically locates the near viewing zone within the progressive lens corridor, taking into account the positive or negative power of the prescription. This minimizes the need to tilt the head forward or back, or raise and lower a book in an attempt to bring the text into focus. Any postural discomfort while reading is thereby minimized, ensuring the patient enjoys natural, comfortable viewing posture.\nThis technology bridges the geometric gap between the trial frame used in the optometrist’s office, and the actual frame chosen by the patient. It ensures that the patient’s experience of the prescription once the lens is fit into the frame, is exactly the same as when originally measured by the optometrist, giving the patient the same viewing comfort and visual acuity.","domain":"optical_engineering"}
{"url":"https://www.pennoc.com/optical-coatings/","date":"2023-03-28T03:26:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948756.99/warc/CC-MAIN-20230328011555-20230328041555-00382.warc.gz","language_score":0.7894229292869568,"token_count":891,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__213014648","lang":"en","text":"Optical thin film coatings is an exact science! Penn Optical Coatings understands the physics behind the science and combines precision engineering with optical expertise to develop, manufacture, and deliver thin film coatings with optimal performance. We developed our library of over 7,500 standard and custom optical coatings using our custom-built chambers and coating formulas. Our coatings process combines fundamental thin film physics, expert knowledge of dielectric material properties, and modern deposition technologies. We understand the science of optical coatings—resulting in consistent, repeatable, and durable optical performance of the highest quality.\nRed, green, blue\nOptical performance is determined by your application’s requirements. This sometimes results in the need for custom thin film optical coatings. Penn Optical Coatings has the experience and process knowledge to engineer and manufacture a broad range of specialty coatings. In addition to requiring some customization, specialty coatings may also require novel concepts in the design, engineering, or process control stages to achieve a desired performance. This may include coating special materials, unique substrate dimensions, and optical properties. Tell us what you need—we’ll make it.\nOD 0.3-OD 0.8\nOur greatest resource is our experience. The Penn Optical Coatings team works closely with you to ensure the optimal result for your application.\nOptical design software packages like OptiLayer and TF Calc are quite sophisticated, offering multiple optimization routines and production troubleshooting features. Using them requires a depth of experience in the physics behind the formula and hands-on knowledge of design for manufacturability. Determining the right process to achieve consistent quality and throughput is a significant factor in product cost and performance.\nPenn Optical Coatings specially crafts filters and optical coatings from the UV to the IR for optics from 1 millimeter to 1 meter. Our expertise in silver coatings includes a new formulation proven to improve durability.\nNIR & SWIR\nStandard Established Coating Products\nSingle Wavelength V-Coat Anti-Reflection\nPolarization Control Coatings: Polarizing\nPolarization Control Coatings: Non-Polarizing\n(high & low power)\nMetal Mirror Coatings\n(gold, silver & aluminum base)\nNeutral Density Coatings\n(SWP and LWP)\nColor Match Coatings\nSubtractive & Additive Color Filters\nSpecialty Coating Products\nEnhanced Durability IR Mirrors\nMulti-Spectral IR Beamsplitters & Mirrors\nLong-Life Silver Mirrors\nOur team is ready to help you develop the optical coating solution that best fits your application.\nLead Coating Technician\n44 years in Optical Coatings","domain":"optical_engineering"}
{"url":"https://afnw.com/laura-sharrad-bodwxe/page.php?7278d1=prescription-safety-glasses","date":"2021-06-22T20:39:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488519735.70/warc/CC-MAIN-20210622190124-20210622220124-00620.warc.gz","language_score":0.8755484819412231,"token_count":1455,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__197072517","lang":"en","text":"$33.55. When you join Bridge Safety, you’ll save big on polycarbonate lenses for your Rx safety glasses at Walmart, and your workers will be protected. All safety eyewear meets or exceeds current American National Safety Institute (ANSI) Z87.1 standards, and the requirements of the Occupational Safety … A pair of OSHA-approved prescription safety glasses are noticeably thicker than non-approved glasses. Prescription Safety Glasses. Check out the extensive line of customizable safety sunglasses on our website, or call one of our friendly opticians who will be more than happy to help you find the perfect pair of prescription safety glasses … Start by selecting a pair of frames that are rated for conditions on a work site or in any other environment in … Call us at 800-945-4505 or email us today to learn more about the America's Best Safety Eyewear Program and to get your employees started in using prescription safety eyewear … NEW ARRIVALS. Choose from night driving & computer eyewear, radiation & laser safety goggles, glassworking spectacles, prescription safety glasses & more at VS Eyewear. We help customers to build a culture of safety … OSHA isn’t the only organization that has high standards for protective workplace eyewear… Shop online at Costco.com today! All protective eyewear provided by Visionworks are manufactured in the U.S.A. by America’s leading manufacturers of industrial safety frames. Prescription A wide range of safety spectacles with prescription … Safety goggles just don't fit all the … Safety Eyewear. $15.00. Choose from a huge variety of affordable Safety Glasses & premium protective eyewear available online with cheap prices. Shop RX Safety glasses at eyeweb to protect your vision. Elvex - WELRX500C15 RX-500C 1.5 Diopter Full Lens Magnifier Safety Glasses, Black Frame /Clear Lens. For this reason, proper eye and face protection is critical. Customize your order today! Many doctors, nurses, dentists, and hygienists prefer lightweight safety eyewear … Prescription safety glasses combine durable physical eye protection with precise vision correction. Glasses More comfortable and stylish, protective eyewear is more easily adopted; Goggles Protective goggles designed for a full protection. Prescription Safety Glasses. Ansi Safety Glasses. All frames also come with features that allow for maximum protection against dust, dirt and flying particles. 3M Classic 3 . THE 3M SAFETY … A pair of prescription safety glasses belongs to a specific range of PPE eyewear. $8.11 $ 8. They are absolute versatile PPE for including protective details. Look no further. We help you in buying ANSI Prescription Safety Goggles online with our visual try on experience. … 3M Eagle . What is a pair of prescription safety glasses? Enhance your vision with Costco's great selection of a variety of brands for optical care. Learn more about Bollé Safety and Walman Optical Safety Eyewear partnership. Zenni now offers affordable ANSI Z87.1 prescription safety glasses with impact resistant lenses, scratch protection, 100% UV protection, and advanced anti-reflective coating. RX Safety Glasses. Prescription Safety Glasses & Sunglasses. The lenses on safety eyeglasses are stronger than the lenses in fashion eyeglasses. Protective Glasses. We make the best prescription safety glasses using … Whether you work a demanding nine-to-five job with lots of flying debris or simply enjoy woodworking in your spare time, our line of prescription safety glasses … As normal safety glasses while being able to provide close magnification at whatever rate you wish for tasks I have mentioned above. We provide the best safety eyewear brands under one roof. $36.95. Prescription Safety Glasses Online. Medical Safety Glasses. At Safety Protection Glasses, we are excited to present our in-house line of prescription safety glasses. Our goal is to provide our customers with affordable, top-notch prescription safety glasses, prescription eyewear, or sunglasses for any occasion whether that be work or sports, it is our goal to make eyewear … Safety Gear Pro offers Z87 prescription safety glasses in addition to our non-prescription safety glasses. 6 Pairs Eye Glasses Side Shields,Slip on Side Shields for Safety Glasses Fits Small to Large Flexible C… 4.4 out of 5 stars 3,988. Searching 3M Prescription Safety Glasses Online? Prescription Safety Glasses. Shop our wide selection of Z87 certified Safety Eyewear and Frames at SafeVision.net. Cheapglasses123.com is a leading direct-to-consumer marketer of prescription safety glasses. Prescription safety glasses. Popular Safety and Sunglasses Categories. With our safety eyewear program, America's Best provides your company and its employees with convenient, customizable and affordable prescription safety glasses. Prescription safety glasses. Call … Rx-Safety.com is a family-owned and operated safety glasses company, optical lab, and online store. SafeVision is the leading provider of ANSI z87.1 and OSHA Certified prescription safety glasses and safety sunglasses, serving both U.S. and international customers. 3M ZT200 . Whether you work a demanding nine-to-five job with lots of flying debris or simply enjoy woodworking in your spare time, our line of prescription safety glasses … These are separate sub … This especially includes glasses lens magnifier at a wide variation from +0.05 to maximum +4.00 diopter to support indoor/outdoor workers, sports participants and book readers at home. 877-872-5780 My Account Checkout SAFETY GLASSES Armourx is a leader in the safety eyewear industry, offering safety frames that combine quality, protection and fashion-forward design. At VS Eyewear, we are excited to present our in-house line of prescription safety glasses. Filter by. Amazon's Choice for prescription safety glasses for men. Hoya Safety Eyewear. Best Prescription Safety Glasses. Online Shop for Wiley X Prescription Safety Glasses. The standard covers impact, splash and dust and optical radiation protection. Safety Goggles. Customize and order online today! MUST HAVES COVERING WRAP-AROUND METAL … 11 $9.15 … Invest in high-end & stylish prescription safety glasses from CA Glasses- a one-stop-shop for all your eye-related concerns. Need prescription safety glasses, but not sure which ones to get? At Eyeglass World, we understand that protecting your eyes and the eyes of your employees is a priority. Our company is one of the fastest growing direct-to-consumer prescription safety sunglasses & glasses … Z87 Safety Glasses at Walmart ANSI Z87.1 refers to the current standard for safety eyewear … Zenni ANSI Z87.1 Safety Glasses. In medical and dental professions, the threat of random airborne fluids and particles is often present.","domain":"optical_engineering"}
{"url":"https://windowtintz.com/heat-reduction-santa-monica-home/","date":"2019-06-16T19:11:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998291.9/warc/CC-MAIN-20190616182800-20190616204800-00440.warc.gz","language_score":0.8252021670341492,"token_count":111,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__116127429","lang":"en","text":"For this contemporary Santa Monica home we installed Huper Optik Ceramic 50 film. This film provides the following benefits:\n- Visible Light Transmission: 48%\n- Visible Light Reflectance: 11%\n- Infrared Rejection: 68%\n- UV Light Rejection: 99%\n- Total Solar Energy Rejected: 44%\n- Glare Reduction: 47%\nInstalling this film allowed the homeowner to reduce the amount of heat entering the home and block UV rays while keeping the natural view when looking out the windows.","domain":"optical_engineering"}
{"url":"http://sunglasses-polarized-photochromic-transition-lenses.com/aboutUs","date":"2017-11-24T22:09:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934808972.93/warc/CC-MAIN-20171124214510-20171124234510-00342.warc.gz","language_score":0.9107910990715027,"token_count":145,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__83710956","lang":"en","text":"Sunglasses-polarized-photochromic-transition-lenses.com is a directory of best deals on sunglasses found on the web. We only list sunglasses that are both polarized and photochromic (transition).\nWe list sunglasses that are both polarized and transition.\nPolarization of sunglasses reduces glare, makes object much sharper.\nPhotochromic property makes the lense transition to dark when exposed to sunlight, and transition back to light when sunlight disappears.\nEssentially it means the same thing.\nThis gives a combination of clear sharp image with adjusted shade based on the amount of light that glasses are exposed too. The combination of the two gives the best outcome for clear vision.","domain":"optical_engineering"}
{"url":"https://selfchec.org/healthy-habits/sun-safe/sunglasses/","date":"2024-02-26T11:40:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474659.73/warc/CC-MAIN-20240226094435-20240226124435-00122.warc.gz","language_score":0.8915224671363831,"token_count":224,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__172868483","lang":"en","text":"The Best Sunglasses To Wear\nYour best defense against eyelid cancer (and other eye damage) is to wear sunglasses with lenses that block UV rays and to wear them year-round, even on overcast days.\nSelect From Sunglasses That\nOffer These Lens Features\n- Lenses that absorb and block 99 to 100 percent of UVA and UVB light and, if possible, protect against high-energy visible (HEV) light, high-frequency light in the violet/blue band and a cause of age-related macular degeneration.\n- Lenses big enough to shield your eyes, eyelids and surrounding skin. Look for wraparound styles with a close fit and UV-protective side shields.\n- Lenses that meet ANSI and/or ISO standards for recognizing the colors on traffic signals when you are driving and are impact-resistant.\n- Polarized lenses, that eliminate glare when used while driving, in the snow and on the water.\nResource: American Academy of Ophthalmology\nLearn More About What You Wear Can Help Protect You From The Sun","domain":"optical_engineering"}
{"url":"http://www.ipinlighting.com/pages/about-us","date":"2023-09-23T18:40:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506528.19/warc/CC-MAIN-20230923162848-20230923192848-00353.warc.gz","language_score":0.9462078809738159,"token_count":328,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__140644404","lang":"en","text":"Enterprise Capability Founded in 2009, By far we have over 6,000 square meters R & D center and more than 20 sets of producing and testing equipments. More than 30 R&D staff that has been professional and experienced in LED industry for years, and able to afford new design and best lighting solution according to the different requirements from customers.\nFirst Lighting will move with times. Keep leading of indoor and outdoor LED lighting technology and manufacturing. Now, the average monthly output was 60,000pcsLED applications which mainly include.Our products are exported to worldwide, mainly to Spain, Germany, the United Kingdom, Netherland, Sweden, Portugal and USA, and win high praise.\nBusiness Scope Engaged in all kinds of indoor and outdoor led lighting products which include LED Street Light, LED Garden Light, LED Flood Light, LED Tri-proof Light, LED Panel Light, LED Down Light and LED Industrial lighting etc, which comply to CE, RoHS, CB, TUV,ENEC, FCC, UL approvals.\nQuality Control We adhere to the principle of “technology first, quality first, service first”.Under the guide of ISO9001:2008 quality management system, First Lighting introduced world-class full-automatic SMT, DIP and reflow soldering assembly line, Have a great team of experienced R&D engineers, product craft control engineers, QC team and a lot of skilled worker. With the joint efforts of each department,Defective rate is less than 0.3 percent.\nWarranty We promise 5~8 years warranty for all of our lamps.","domain":"optical_engineering"}
{"url":"https://www.natural-immunogenics.com/about/index/keyword/id/129","date":"2017-10-22T04:43:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825141.95/warc/CC-MAIN-20171022041437-20171022061437-00296.warc.gz","language_score":0.885165274143219,"token_count":107,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__208206610","lang":"en","text":"The scattering of light by dispersed colloidal particles or emulsion suspensions, named after the Irish scientist John Tyndall. The suspended particles reflect the light, making a beam of lighting passing through it more visible. This effect can be used to determine whether a colloid has large particles or not. The Tyndall effect is noticeable when car headlights are used in fog and the light beams are visible versus in clear weather the light beams are invisible. The finer or smaller the dispersed particles, the smaller the diameter cone of light beam scatter..","domain":"optical_engineering"}
{"url":"http://www.greentoplighting.com/commercial-lighting/led-lamp-tube-4ft-20w/","date":"2023-03-25T11:06:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945323.37/warc/CC-MAIN-20230325095252-20230325125252-00461.warc.gz","language_score":0.7759763598442078,"token_count":456,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__290609749","lang":"en","text":"LED lamp tubes are the latest solution for conventional fluorescent tubes. They are high in performance, brightness, efficiency and reliability. LED lamp tubes are available in frosted tubes and transparent PC cover with different lengths such as 600mm, 900mm, 1200mm, 1500mm, 1800mm and 2400mm to customer’s requirements.Available in the following Color Temperatures:\nWarm White: 3,000 – 3,500K\nCommercial white: 4,000 – 4,500K,\nCold White: 5800-6500K,\nCommercial and industrial lighting, Laboratories and research environments, Hospitals and medical environments, Museums and galleries, Colleges and universities, Office buildings, Hotels and hospitality, Warehouses, Parking garages.\nEasy installation, designed for traditional lighting fixtures.\nConsult electricians for professional guidance before modifying existing lighting system. Replacement lamps are installed in accordance with the manufacturer’s instructions, ensure to remove electronic ballast or disconnect with electronic ballast and wire connection are correct before connection to power to avoid any damage to LED lamp tube.\n|Product Name||4ft LED lamp tube 22W|\n|Note||# (=WW, NW, or CW)|\n|Base type||bi-pin (G13) lamp base|\n|Beam Angle||170 ± 5°|\n|Certification||c CSA us Listed|\n|Color rendering index||>80|\n|Color temperature||Warm white 3000K/ Natural white 4100K/ Cool white 6000K|\n|Lumens initial||1700 lm|\n|Luminaire efficacy||110 lm/W|\n|Number of LEDs||288 pcs|\n|Tube length||1214 mm|","domain":"optical_engineering"}
{"url":"https://yokubariking.com/eye-refractive-surgery-laser-corrective-eye-surgery-procedures/","date":"2023-06-07T22:50:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654016.91/warc/CC-MAIN-20230607211505-20230608001505-00771.warc.gz","language_score":0.941247820854187,"token_count":505,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__239420949","lang":"en","text":"Eye Refractive Surgery – Laser Corrective Eye Surgery Procedures\nNumerous technological advancements have since helped in making eye refractive surgery safer and more effective than it has ever been. Here are some of the novel technological advancements that are currently being used in eye refractive surgery:\nMICROKERATOME VS. LASER\nOne of the major improvements in the procedure, specifically in laser eye surgery, has been the use of the femtosecond laser. The femtosecond laser is currently being used as a possible replacement of the microkeratome for use in the creation of a corneal flap. The femtosecond laser is used to shoot holes into the cornea at a preset depth. Compared to the microkeratome, the femtosecond laser is able to create the flap more accurately. Certain studies have shown that the use of the femtosecond laser has resulted in more predictable outcomes and decrease in visual aberrations, chirurgia refrattiva migliore such as halos. On the downside, use of the femtosecond laser remains to be more difficult for the ophthalmologist and also more expensive. Visual acuity after the surgery using the femtosecond laser produces similar results as eye refractive surgery that uses microkeratome tehcnology.\nThe use of tracking devices during has also made surgery significantly safer for the patient. Tracking devices are used to follow the movements of the eye during the operation. At present, 2 types of trackers are being used, namely laser radar tracking and video tracking. Although the use of these tracking technologies has significantly made the ophthalmologist’s job easier, they still have certain limitations. Video tracking of the pupil has a slight lag time, while laser radar tracking requires a specified amount of pupil dilatation for it to work. However, both kinds of trackers are currently being employed and have resulted in good results.\nAt present, a number of different lasers aside from the excimer laser are being tested in several studies approved by the US Food and Drug Administration (FDA). The various lasers will first have to prove their efficacy and safety before they can be publicly used. When undergoing eye refractive surgery, it is important to make sure that the laser that will be used on you is FDA-approved or is part of an FDA-sanctioned clinical trial.","domain":"optical_engineering"}
{"url":"https://stanko-service.su/en/spare-parts/focusing-lenses-for-laser-cutting-systems/40130760-lens-znse-f-130mm-ref-no-1772319","date":"2024-04-12T21:56:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816070.70/warc/CC-MAIN-20240412194614-20240412224614-00398.warc.gz","language_score":0.8092540502548218,"token_count":179,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__187115330","lang":"en","text":"Lens for TRUMPF laser cutting machines (Ref # 1772319)\nLens with a focal length of 130mm. The low cost of the lens will save you money. At the same time, you get a lens that is not inferior in quality to the original.\nInexpensive and profitable ZnSe lens for the TRUMPF 5030, 3030 L20 laser machine\nFixed price in rubles without reference to foreign exchange rates.\nNon-proliferation guarantee (zinc selenide is a dual-use product).\nThe lens is made from original raw materials that are used in the production of original lenses.\nThe focal length is 130mm.\nMaterial - Zinc Selenide\nEdge thickness ET 7.6 mm\nAR / AR for a wave of 10.6 microns - less than 0.20%","domain":"optical_engineering"}
{"url":"https://smartdatastrategies.wordpress.com/category/transportation-2/","date":"2018-07-18T02:51:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590046.11/warc/CC-MAIN-20180718021906-20180718041906-00074.warc.gz","language_score":0.9333053827285767,"token_count":257,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__114401103","lang":"en","text":"As new technologies go, few look as futuristic and as hi-tech as LiDAR which stands for LIght Detection and Ranging or Laser Imaging Detection and Ranging. Even the name makes it sound futuristic. However, LiDAR is merely a remote sensing technology that uses laser light sensors mounted on either vehicles or aircraft to illuminate a target in order to gather the appropriate data. Notice the animation to the right showing a simplistic view of a laser identifying surface area (from wikipedia). The result of a LiDAR collection is what is called a point cloud or a 3D image made up of points representing the external surfaces of the target objects. A single sensor may collect up to 800,000 X, Y, and Z points per second to create a 3D model and animations.\nToday, LiDAR is used in a wide variety of disciplines including geomatics, geology, geomorphology, bathymetry, forestry, archeology, contour mapping, gaming, and even music videos. Apparently the indie rock band Radiohead thought it was cool enough to create an entire music video based on the technology. Whether or not you’re a fan of their music, it’s interesting to see an artistic view of LiDAR.","domain":"optical_engineering"}
{"url":"https://pmnetforum.com/speaker/andris-anspoks/","date":"2023-11-29T06:24:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100056.38/warc/CC-MAIN-20231129041834-20231129071834-00419.warc.gz","language_score":0.9657325148582458,"token_count":164,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__307585102","lang":"en","text":"In 1984, while studying at the University of Latvia, Andris began work at the Institute of Solid State Physics, where he developed as a researcher mainly in the areas of photonics, nonlinear optics and quantum chemical calculations. From 1990 to 2010, Andris worked in business and public administration, where he developed IT solutions and managed sophisticated projects and organizations. Since 2009, Andris has returned to science, where he transfers knowledge from business and public administration into science management. His research interests now span many topics, including X-ray absorption spectroscopy with synchrotron applications. In 2014 he received his doctorate in physics. From 2017 to 2021, he developed the innovation development system at the institute including IP management, collaboration with industry and technology transfer. Andris has been the director of the institute since 2021.","domain":"optical_engineering"}
{"url":"https://web3-0.org/tag/dwdm/","date":"2021-10-22T09:45:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585504.90/warc/CC-MAIN-20211022084005-20211022114005-00439.warc.gz","language_score":0.9584338665008545,"token_count":248,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__175392188","lang":"en","text":"Dark fiber: concept, pros, cons, challenges and monitoring\nThere is a very interesting alternative in the market in terms of communications services; we refer to the possibility of leasing or buying dark fiber segments.\nSince the 90s of the last century, many companies have been making large investments in laying fiber optic cabling, managing to cover large geographic areas. Continue reading “Let’s talk about dark fiber”\nHave you ever heard about dark fiber? Traditionally, the term refers to a dark or unused network infrastructure. In fiber optic networks, when data is being transmitted, light is passed through the cables. If no data is being transported, there are no light waves traveling along the cable, therefore the fiber is dark. Simple, isn’t it?\nIn the beginning, many companies had the tendency to future-proof their fiber optic networks by installing more cabling than what was actually needed for their current requirements, just to be prepared in case they will face an exponential data growth. Because of this overestimation and some technological developments concerning the way data is being packed, many fiber optic networks are not used at their fullest capacities. Therefore, dark fibers were created to take advantage of this extra capacity.","domain":"optical_engineering"}
{"url":"http://www.temaseye.com/cataract-surgery-ora-winston-salem.htm","date":"2017-04-29T09:27:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123484.45/warc/CC-MAIN-20170423031203-00555-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9634929299354553,"token_count":498,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__197501100","lang":"en","text":"It used to be that a surgeon needed to wait weeks after performing surgery to determine your vision results. Thanks to ORA, this is no longer the case. Now, during the procedure, your surgeon can take measurements of your eye. ORA measurements are taken after the clouded cataract is removed, when the surgeon has a clear view, allowing him to tailor the procedure to your individual eye and refine your visual outcome. No matter what premium cataract procedure you and your surgeon decide upon, you can feel confident that by adding the ORA System®, you’ll receive the best possible results.\nORA System™ is a cutting edge technology by Wavetec® that allows the doctors of Temas Eye Center, Institute to take a picture of the eye at the time of surgery to verify that the nearsightedness, farsightedness or the astigmatism was corrected, and that the exact correct powered Intraocular lens (IOL) was selected. Prior to the ORA System™, surgeons have been unable to assess the quality of vision during the procedure, and would have to wait until weeks after the procedure to determine the accuracy of the results.\nThe ORA System™ works by directing a beam of low intensity laser light into the eye during the surgical procedure. The laser light reflects off the back of your eye, and sensors in the ORA System™ device analyze the reflected wave of light exiting your eye. This real-time analysis measures all of the eye's unique optical characteristics, and gives your cataract surgeon an accurate measurement of your eye's focusing capabilities.\nThe doctors at the Temas Eye Center, are committed to providing the highest quality of vision possible to their patients. Using the ORA System™ helps them achieve this goal, because for the first time ever, the surgeon is able to correct the eye prescription in “real time” so the patient may not need any glasses after surgery.\nI couldn't have asked for better treatment or outcome. The staff at both your office and the surgical center are superior by every measure. They are professional, knowledgeable and respectful of all patients. It was almost a fun experience! Although the cataracts in both eyes had impaired my vision, the thought of eye surgery was scary. But - my fears were all for \"naught\" - it was such a quick, PAINLESS procedure, I wondered why I had waited so long!\n- Carol V.","domain":"optical_engineering"}
{"url":"https://www.wildfiresports.com.au/brand/bz-optics/","date":"2023-12-03T06:50:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100489.16/warc/CC-MAIN-20231203062445-20231203092445-00082.warc.gz","language_score":0.9106940627098083,"token_count":188,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__127167587","lang":"en","text":"Nutrition & Health\nSale & More\nBZ Optics create unique eyewear developed by Scott Birdsall - an avid cyclist, triathlete, sailor and canoeist - and Kevin Barr - a surfer and sailor with 40 years' experience in the action sport and sunglasses business. They created the world's first photochromatic bifocal sport sunglasses when Birdsall decided that he needed sunglasses that he could train in at all hours of the day, that would also allow him to read the small print on his watch and cycling unit. The result: a super lightweight cycling frame adaptable for all face shapes and sizes and for wearer comfort under the most gruelling conditions.\nBZ Optics PHO Amber Polarised Bifocal Lens Sunglasses\nBZ Optics PHO High Definition Photochromic Lens Sunglasses\nBZ Optics PHO High Definition Photochromic Bifocal Lens Sunglasses","domain":"optical_engineering"}
{"url":"http://www.current.com.au/2012/05/17/article/Sony-releases-new-NEX-and-Alpha-series-camera-great-for-narcissists/IXMTZEDMVO","date":"2013-05-25T10:17:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368705926946/warc/CC-MAIN-20130516120526-00098-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9060280323028564,"token_count":410,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__130765900","lang":"en","text":"By Patrick Avenell\nSony Australia is catering to the self-centred with its latest camera release, the NEX-F3, which includes a 180-degree tilt LCD screen for self portraits.\nThe NEX-F3 is a compact system camera, meaning it has interchangeable lenses but not the bulk of a fully-featured DSLR. This camera is compatible with lenses from Sony’s E-Mount series.\n“The compact sized NEX-F3 features the same space-saving mirrorless design as other cameras in the E-mount family,” said Sony in a statement “Far bigger than sensors found in point-and-shoot compacts, the 16.1 effective megapixel Exmor APS HD CMOS sensor captures more light for flawless, low-noise stills and crisply detailed Full HD video.\n“Just like traditional DSLR cameras, it’s easy to create beautiful defocus effects with your subject focused sharply against a smoothly blurred background.”\nThe NEX-F3 is available in a range of kits starting from RRP $699 for the camera plus an 18-55mm lens.\nSony's new NEX-F3\nAlso new from Sony is the α37, part of Sony’s range of Alpha DSLRs. Key features of this camera include a 16.1-megapixel sensor, tilting LCD, high-speed shooting at up to seven frames per second and Full HD shooting.\n“The α37 utilises 2x Clear Image Zoom which doubles magnification of your lens and Sony patented technology called By Pixel Super Resolution. This technology gives images superb detail, depth and contrast and allows those on the go the flexibility to boost the focal length without carrying extra hardware,” said Sony in a statement.\nThe α37 is available in a range of kits starting from RRP $699 for the camera plus an 18-55mm lens.\nSony's new α37 DSLR camera.","domain":"optical_engineering"}
{"url":"https://dentalmedicalmarketing.com/what-is-lasik-surgery-and-when-should-we-consider-it/","date":"2023-06-02T22:23:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648858.14/warc/CC-MAIN-20230602204755-20230602234755-00558.warc.gz","language_score":0.9127240777015686,"token_count":1049,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__263689727","lang":"en","text":"What is LASIK surgery?\nLASIK surgery is also known Laser in-situ keratomileusis eye surgery. It is an eye refractive surgery. It is done for the treatment of myopia (Nearsightedness), hyperopia( farsightedness) or astigmatism.\nBefore the advent of LASIK surgery, the only way to treat blurry vision was to bend refractive light rays with the help of spectacles or contact lenses. Though some people still opt for spectacles or contact lenses, some people find it very difficult to manage and carry glasses, contact lenses and solutions wherever they go. LASIK is an excellent option for such people. In this procedure, the cornea is reshaped for proper refraction of light rays with a laser. It corrects the vision and helps the patient to lead a carefree life without the tension of carrying glasses and contact lenses and solutions.\nWhat are the different types of problems that can be treated with the help of LASIK?\nLASIK surgery is performed when the patient can see blurry images. Images are formed at the back of the eye, on the retina. If there is a fault in the focus of the eye, then the images seen by the patient is blurry. The different types of problems in which the patient sees blurry images are:\n- Farsightedness or hyperopia: In this condition, the patient can see the far objects clearly, but the images of objects lying near their eyes are blurry. When the cornea is flat, or the average length of the eyeball is short then light does not fall on the retina but at the back of the retina. This creates images that are blurry or distant. People who have hyperopia experience blurry vision while reading.\n- Nearsightedness or myopia: In this condition, the patient can see objects lying near his eye clearly but the images of objects lying far away appear blurry in his eyes. This happens when the eyeball is longer than usual, or the cornea takes a sharp curve, and the light falls on the front portion of the retina instead of the retina. The people suffering from myopia can see the things close to their eyes properly but experience blurry vision while focusing on things lying far away.\n- Astigmatism: People who are suffering from astigmatism experience overall blurry images. It happens when the cornea becomes flat or curves unevenly, it disturbs the focus of light, and the patient sees blurry images all the time.\nWhat can we do if we have blurry vision?\nDr. Durocher, a Lebanon optometrist, suggests that if we have any kind of problem with our eyesight, then we should get our eyes checked at the earliest. Neglecting an eye problem can make it worse. An optometrist can check the measurements of the eyeball and suggest glasses for the refraction of the light and correction of the vision. If the patient is not interested in wearing glasses or contact lenses, then the optometrist can check the health of the eye to determine if the patient is eligible for LASIK surgery. The optometrist can then refer the patient to an eye surgeon or ophthalmologist for further treatment. Different eye surgeons specialize in various kinds of LASIK surgeries, and the type of surgery needed depends on the problem faced by the patient.\nWho can go for LASIK surgery?\nLASIK surgery is suitable for people with moderate refractive error and mild vision problems. It generally brings positive outcomes for healthy patients, but if a patient has any underlying health issue or problem in the eyes, then it might lead to complications after the surgery. Certain conditions might affect the success of the procedure, such as:\n- Any kind of eye infections like herpes simplex or keratitis may lead to complications after the surgery.\n- People with dry eye syndrome should not go for Lasik surgery as it might complicate their problem.\n- People with an eye disease that slowly affect the vision should not go for LASIK surgeries.\n- People with glaucoma should not go for LASIK surgeries as the surgical procedure can increase the intraocular pressure.\n- If a patient has an age-related vision problem, then LASIK surgery may not be helpful for him.\n- People with medical conditions like diabetes or any other disease that affect the immune system like HIV that make the healing process slow should not opt for LASIK.\n- People who play contact sports which involves the risk of being hit in the eye should not consider LASIK.\nThough people heal quickly after the surgery and experience improved vision, it is better not to neglect post-surgery care and visit the doctor regularly for six months to one year to avoid post-surgery complications.","domain":"optical_engineering"}
{"url":"http://romeooscar.com/news/nbaa-2015-esterline-cmc-electronics-reaches-1000th-production-milestone-for-its-enhanced-vision-system-sensors/","date":"2018-01-16T15:31:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084886437.0/warc/CC-MAIN-20180116144951-20180116164951-00561.warc.gz","language_score":0.8867876529693604,"token_count":437,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__245554812","lang":"en","text":"NBAA 2015: Esterline CMC Electronics Reaches 1000th Production Milestone for its Enhanced Vision System Sensors\n(National Business Aviation Association (NBAA 2015) – Nov. 17, 2015) Esterline CMC Electronics (CMC) will achieve an important milestone with the production of its 1000th SureSight® Integrated Sensor System by the end of 2015.\nCMC’s SureSight® family of integrated sensor systems comprises the CMA-2600 and CMA-2700. These systems are designed to meet demanding video performance, reliability and quality standards, and are the leading choice for airframe manufacturers and prime contractors. They offer enhanced situational awareness in adverse visual conditions and enable operators to take advantage of regulations expanding the operational capabilities of aircraft equipped with an enhanced flight vision system (EFVS).\nClaude Chidiac, vice-president of products, strategy & customer support, Esterline CMC Electronics, said: “Innovative technology and a winning combination of capability, availability and performance are key features of our SureSight® Integrated Sensor Systems. The CMA-2700 is the only sensor certified to DAL B that is able to support the Federal Aviation Administration’s upcoming EFVS regulations allowing airline operators to obtain operational benefits.”\nThe third-generation SureSight® CMA-2700 sensor offers the highest resolution available for an enhanced vision system (EVS) sensor and four times the resolution of currently certified systems. It features state-of-the-art digital image processing, including dynamic non-uniformity corrections for optimal image management. This end-to-end digital system is also the first EVS to be fully compliant to ARINC 818 Avionics Digital Video Bus standards. This sensor has been selected for the Bombardier Global aircraft with the Vision* Cockpit and the Bombardier Challenger 605*.\nThe SureSight® CMA-2600 sensor is in operation on multiple aircraft platforms, including the Bombardier Global Express* and Global 5000*, the Dassault Falcon 900, 2000 and 7X, and the Boeing Business Jet.","domain":"optical_engineering"}
{"url":"https://www.titancabling.com/fiber-optic-cabling.html","date":"2023-06-01T05:10:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647614.56/warc/CC-MAIN-20230601042457-20230601072457-00455.warc.gz","language_score":0.9558870792388916,"token_count":664,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__4276874","lang":"en","text":"Fiber Optic Cabling FL\nBest Fiber Optic Cabling Company\nAre you looking for Fiber Optic Cabling? When it comes to creating a network installation that you can trust, Fiber Optic Cabling is one of the best upgrades that you can make to your workplace. As one of the Best Fiber Optic Cabling Installers, FL, we know how important the right solution is to you.\nThat is why our team will take the time to understand your exact requirements, allowing us to create a tailored solution to meet your needs. We have helped a wide array of businesses transform their network through proven Fiber Optic Cabling in FL.\nBest Fiber Optic Cabling CompanyIf you are looking to update your workplace, Fiber Optic Cabling, helps to provide you with a range of benefits, including:\n- Greater Bandwidth\n- Faster Speeds\n- Greater Distances\n- Greater Reliability\n- Easier to Install\nOne of the biggest benefits of Fiber Optic Cabling is that it gives you far greater bandwidth compared to traditional copper cables. These solutions were originally designed for transmitting voices, whereas fiber optics can carry far more data.\nNot only does Fiber Optic Cabling, give you greater bandwidth, it also offers users far greater speeds. Fiber Optic Cables use light to transmit data, which makes them significantly faster than other cabling options, while they also tend to have less signal reduction.\nFiber Optic Cabling, is also able to transmit signals over much greater distances than traditional options. The overall distance will depend on the cable, network, and wavelength, but they have been known to transmit signals over 20 miles.\nAlongside being able to deliver greater bandwidth and speed, Fiber Optic Cabling, also offers users far better reliability. Not only is it immune to temperature or moisture, but it is also not impacted by electromagnetic interference (EMI).\nThe type of cabling used in Fiber Optic Cabling in FL, is also thinner and lighter, which ensures it is easier to install and it is also less likely to be damaged or broken.\nInstalling Fiber Optic Cabling, is also a great way to future-proof your property. The highly flexible solution will easily let you expand your business and add more devices as required.\nCall Us Today!\nVoted #1 Network Cabling Company in Florida\nSpeak to a Cabling Expert!\nInstalling Fiber Optic Cabling is also a more cost-effective option. Although it might have a slightly higher installation cost compared to copper, the reliability and durable nature mean the overall cost of ownership is far more cost-effective.\n#1 Fiber Optic Cabling Company\nAre you looking to install Fiber Optic Cabling? Titan Cabling is the #1 Fiber Optic Cabling Company. As one of the leading Installers of Fiber Optic Cabling, our highly experienced team can help to provide you with a strategic solution that has been designed to meet your requirements.\nWe pride ourselves on our friendly service and in-depth knowledge, so if you are looking for the Best Fiber Optic Cabling, that you can trust, get in touch with our team today.","domain":"optical_engineering"}
{"url":"https://chapeleyewear.com/r504bf/","date":"2023-09-25T20:52:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510085.26/warc/CC-MAIN-20230925183615-20230925213615-00309.warc.gz","language_score":0.9188076853752136,"token_count":207,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__320192418","lang":"en","text":"Do you wear reading glasses?\nDo you hate switching between readers and sunglasses?\nDo you have trouble seeing small parts while at work or at jobs around the house that require safety eyewear?\nChap'el Eyewear has the perfect combination eyeglass for you.\nThese Bifocals come in clear, night driving, and smoke to suit all of your needs. It's like having a pair of reading glasses, safety glasses, and a sunglass all in one.\nEach is a shatterproof polycarbonate UV400 lens with a reading glass insert in the bottom of each glass. (R206, C112 and S23 BF meet the Z87.1+2003 high impact safety rating for extra protection)\nThere are so many uses for these glasses:\n- Clear lenses for on the job or in your home workshop when that eye protection is critical.\n- Night Driving safety glasses while riding your motorcycle at night to improve visual clarity.\n- Smoke lenses for reading at the beach","domain":"optical_engineering"}
{"url":"https://www.med.cuhk.edu.hk/global/applying-deep-learning-in-glaucoma-screening","date":"2023-09-27T12:36:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510297.25/warc/CC-MAIN-20230927103312-20230927133312-00183.warc.gz","language_score":0.8744242191314697,"token_count":243,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__105013540","lang":"en","text":"Applying deep learning in glaucoma screening\nGlaucoma is usually asymptomatic in the early stage with unnoticeable peripheral vision loss. Therefore, developing a sensitive glaucoma screening tool is crucial for early detection and prompt treatment. Previous studies showed that the application of deep learning (DL), a subset of artificial intelligence, on optical coherence tomography (OCT) for glaucoma assessment was efficient, accurate, and promising. In this review, a summary of deployment of the DL models and future research directions have been discussed. (Eye (Lond). 2021 Jan;35(1):188-201. doi: 10.1038/s41433-020-01191-5.)\nAnyone interested in future collaboration in this field of research is welcome to contact our key investigator Dr Carol CHEUNG of the Department of Ophthalmology and Visual Sciences, CUHK. Dr Cheung’s research focuses on using ocular imaging technology and artificial intelligence to study human circulation and nervous systems, and link with eye, brain and cardiovascular diseases, in particular, diabetic eye disease, glaucoma, Alzheimer’s disease and stroke.","domain":"optical_engineering"}
{"url":"http://ladybugglights.com/index.php?main_page=page_3","date":"2020-10-21T19:51:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107877420.17/warc/CC-MAIN-20201021180646-20201021210646-00063.warc.gz","language_score":0.9103784561157227,"token_count":419,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__15532299","lang":"en","text":"Plants absorb specific wavelengths which promotes these areas of their development:\n200nm-280nm UVC ultraviolet range tends to be extremely harmful to plants.\n280nm-315nm UVB, an intermediate ultraviolet wavelength is harmful and will causes plants colors to fade.\n315nm-380nm UVA, the wavelength that causes tanning in humans is neither harmful nor beneficial to plant growth.\n380nm-400nm The sorter wavelength of the visible light spectrum. Process of chlorophyll absorption begins.\n400nm-520nm This is a very plant usable range of the violet, blue, and green bands. Peak absorption of chlorophyll occurs via photosynthesis, and and is the main promoter of vegetative growth.\n520nm-610nm Is mainly a dead range (green, yellow, and orange) because it has less absorption by pigments.\n610nm-720nm This red wavelength is the main absorption by chlorophyll, and most significant promoter of flowering/budding.\n720nm-1000nm Absorption by chlorophyll is generated very little; flowering and germination, however is influenced. The low end of this frequency is unwanted heat, IR.\n1000nm and below is IR and is nothing but unwanted heat.\nFull Spectrum LED's use 70% Red, 20% Blue, 10% other spectrum colors which cover 380nm-840nm. Research has shown the best results with this coverage over years of trial and error. We personally tested and find these results very much promote the vegetation and flower stage of cannabis.\nWe also incorporate warm white (found to be very useful in flowering) and soft white (useful for vegging).\nRed light is important to plant reproduction. Photochromy pigments absorb the red and deep red portions of the light spectrum and regulate seed germination, root development, tuber and bulb formation, dormancy, flowering and fruit production.\nRoyal blue light stimulates Chlorophyll production more than any other wavelength and encouraging thick leaves, strong stems and robust vegetative growth.","domain":"optical_engineering"}
{"url":"https://blogs.aalto.fi/lighting/2020/01/16/lighting-concepts-in-computer-graphics/","date":"2020-06-05T23:35:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348504341.78/warc/CC-MAIN-20200605205507-20200605235507-00301.warc.gz","language_score":0.9246570467948914,"token_count":498,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__74853085","lang":"en","text":"Lighting concepts in Computer Graphics\nMy research into the lighting of computer graphics leads me to explore certain concepts and considerations that determine what to calculate and what to leave out, based on the viewing requirements. Advances in computation have now made it possible to create accurate simulations of real-world lighting today.\nI will introduce some of the concepts in this post.\nTypes of Light Sources\nPoint Light: Light emanating from a source in all directions, with the intensity of light decreases as a function of space. Eg: Light bulb\nDirectional Light: Uniform lighting from one direction, such as sunlight. The source is modelled to be infinitely far away from the object being illuminated, and the intensity of the light stays constant (the change or decrease in intensity as a function of space is negligible) Eg: Sunlight\nSpotLight: A directional cone of light, with the intensity being brightest in the central axis of the cone. Eg: Flashlight\nAmbient light: No source is modelled. Ambient light is uniformly distributed throughout the scene and is independent of the direction, intensity or distance of the object being illuminated.\nA few other types of light are volume lights and area lights, but these are just particular use-cases of the four types of light sources.\nDiffuse Lighting: This models how light interacts with the surface of the object, creating lighter and darker pixels to simulate dark and light parts. This simulates the material and texture of the object.\nAmbient Lighting: Makes the shape of the object visible even when no light source is modelled. It gives a flat, 2-dimensional representation of the object for a given perspective.\nSpecular Lighting: This models the highlights and shininess of the object, depicting smoothness and metallicity or reflexivity of the object.\nLocal Illumination: Light interactions are calculated only with individual objects in the scene separately. This gives a more unrealistic or simulated lighting effect, but it is much faster and takes comparatively lesser computational power.\nGlobal illumination: Light interactions are calculated considering all objects in the scene, including secondary interactions based on reflection and refraction of light with other objects. This gives a more realistic effect but at the cost of higher computational power.\nOne smart way to reduce the number of calculations through the scene is to go backwards from the viewers perspective to the light source, which ensures that the only interactions calculated are the ones that are relevant to the viewer’s perspective.","domain":"optical_engineering"}
{"url":"http://dealstofind.com/blog/canon/canon-powershot-sx700-hs-letsgomobile-press-release/","date":"2017-11-23T09:20:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806768.19/warc/CC-MAIN-20171123085338-20171123105338-00733.warc.gz","language_score":0.8339301347732544,"token_count":654,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__195629586","lang":"en","text":"Canon PowerShot SX700 HS – LetsGoMobile (press release)\nCanon PowerShot SX700 HS digital camera\nThe 30x optical zoom Canon PowerShot SX700 HS camera combines a 16.1 megapixel High-Sensitivity CMOS sensor and the DIGIC 6 Image Processor to create the Canon HS SYSTEM -allowing for excellent low-light performance. With the Intelligent IS, the Canon PowerShot SX700 HS digital camera automatically chooses from various settings to help optimize image stabilization for the shooting condition.\nCanon PowerShot SX700 HS WiFi camera\nThe WiFi connectivity options in the Canon PowerShot SX700 HS camera allows users to easily share beautiful images online with family and friends. Using the Mobile Device Connect Button, users can connect to a compatible smartphone, a compatible tablet or a WiFi enabled computer. Connection to the computer is easily done using Canon iMAGE GATEWAY through the cloud. For easy WiFi connectivity, built-in NFC allows quick and simple pairing to compatible Android devices. With NFC, users press the Mobile Device Connect Button and tap their NFC-enabled Android device to the Canon SX700 HS camera to send images from the camera to their compatible smartphone with ease. For even more convenience, photographers can control the Canon camera remotely via the free Canon Camera Window app from virtually anywhere with their compatible iOS or Android device. After composing the image, the photographer controls the shutter from their compatible smartphone, so that the photographer can be included in the shot.\nFull HD video recording\nZoom Framing Assist Auto has been enhanced to make it easier to keep a subject that is at a far distance in the frame of view. The Canon PowerShot camera also records high-quality 1080p/60p Full HD video through a dedicated movie button. The Hybrid AUTO mode allows users to record up-to four seconds of video every time a still image is taken, and then automatically joins the clips and pictures into a video that captures the essence of a vacation, an important event, or any time you are shooting many shots in a day. Hybrid Auto automatically recognizes the scene and optimizes camera settings to capture the highest possible image quality to create a great looking highlight reel in 720p HD video.\nFeatures of the Canon PowerShot SX700 HS\nThe Canon PowerShot SX700 HS camera also features Creative Shot mode. Creative Shot mode is an easy yet powerful tool to add artistic effects to photos. In Creative Shot mode, users compose a shot and the camera analyzes the photo to apply a series of artistic elements. Creative Shot mode includes four categories with 46 filters total. The four filter categories are: Retro, Monochrome, Special, and Natural. Before an image is captured, users choose one of the four filter types and Creative Shot will automatically render five different variations of the shot in different composition, color and lighting styles, delivering creative, new perspectives automatically while still maintaining the original image.\nCanon PowerShot SX700 HS price\nThe Canon PowerShot SX700 HS digital camera will be available starting in March 2014 in black or red. The Canon PowerShot SX700 HS price is set at $ 349.99. Visit the Canon website for additional product information and availability of optional PowerShot SX700 HS accessories.","domain":"optical_engineering"}
{"url":"https://busada.com/2021/02/15/measuring-transparency-lensing-and-optical-clarity/","date":"2024-04-16T01:46:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817036.4/warc/CC-MAIN-20240416000407-20240416030407-00460.warc.gz","language_score":0.9143981337547302,"token_count":404,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__143887346","lang":"en","text":"So how do scientists measure clear plastic? The boundaries between ‘transparent’ or ‘clear’ and ‘translucent’ or ‘opaque’ are often highly subjective. What is acceptable for one observer is not necessarily acceptable for another. One test for measuring light transmission uses the ASTM D-1003 (Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics). This test method evaluates light transmission and scattering of transparent plastics for a defined specimen thickness.\nAs a general rule, light transmission percentages over 85% are considered as ‘transparent’. But, thickness of the specimen effects the perceived transparency or optical clarity: it will decrease with increasing wall thickness. Standard glass, for example, is relatively optically clear in thin sections but shows a green tint (due to iron in the glass) as the thickness increases. Optical clarity is only be achieved when the refractive index is constant through the material in the viewing direction. Any areas of opaque material (such as colorants) or areas of different refractive index, will result in a loss of optical clarity due to refraction and scattering.\nOptical clarity is also dependent on surface reflections from the sample. The surface reflections at the air/plastic interface create significant transmission losses. For example, acrlyic’s transmission loss is around 93%, and polystyrene is around 88%.\nThese surface reflections come from two basic causes: 1) specular reflection, which is the normal reflection from a smooth surface, and 2) diffuse reflection, which is dependent on the surface flatness of the sample. The transmission loss as a result of surface roughness or embedded particles is more often termed ‘haze’, and this is generally a production concern and not a property of the material. In producing blown film, haze can be caused either by melt fracture at the surface or by interfacial instability between the layers of the film.","domain":"optical_engineering"}
{"url":"https://bysumex.com/how-to-use-lens-correction-in-lightroom-big-brand-sell-lenses-that-are-not-well-calibrated/","date":"2024-04-18T21:17:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817239.30/warc/CC-MAIN-20240418191007-20240418221007-00497.warc.gz","language_score":0.8418394327163696,"token_count":535,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__153064072","lang":"en","text":"Mastering Lens Correction in Adobe Lightroom: A Guide to Perfecting Your Photos\nIntroduction: In the world of photography, capturing the perfect shot often involves dealing with various optical distortions introduced by camera lenses. Fortunately, Adobe Lightroom offers a powerful solution with its Lens Correction tool. In this guide, we’ll explore how to effectively use Lens Correction to enhance your images and address potential issues with lens calibration.\nUnderstanding the Lens Corrections Panel:\nNavigate to the «Develop» module in Adobe Lightroom, and on the right side, you’ll find the «Lens Corrections» panel – unmistakably represented by an icon resembling a camera lens.\nEnabling Profile Corrections:\nThe first step in utilizing Lens Correction is to check the «Enable Profile Corrections» box within the panel. Once activated, Lightroom will automatically attempt to detect the lens used for the photo and apply appropriate corrections.\nManual Lens Profile Selection:\nWhile Lightroom is generally proficient in auto-detecting lens profiles, there may be instances where manual intervention is necessary. If the software doesn’t accurately identify the lens, you can manually choose the correct lens profile from the provided options. This ensures precise corrections tailored to your specific equipment.\nCorrecting Common Optical Distortions:\nLens Correction in Lightroom addresses several optical distortions, including:\n- Barrel Distortion: Commonly seen as a bulging effect, barrel distortion can be corrected using the «Distortion» slider in the «Lens Corrections» panel.\n- Vignetting: This occurs when the corners of an image appear darker than the center. Lightroom’s vignetting sliders help balance the exposure across the frame.\n- Chromatic Aberration: Resolving color fringing issues is crucial for maintaining image quality. Lightroom offers tools to tackle chromatic aberration, ensuring accurate and vibrant colors.\nThe Impact of Un-Calibrated Lenses:\nIt’s worth noting that even lenses from reputable brands may not always be perfectly calibrated. Mass production processes can introduce minor variations, leading to potential issues in image quality. The Lens Correction tool in Lightroom acts as a safeguard, allowing photographers to fine-tune their images and compensate for any imperfections in lens calibration.\nMastering the Lens Correction tool in Adobe Lightroom is essential for photographers aiming to achieve optimal image quality. By understanding how to enable profile corrections, manually select lens profiles, and address common optical distortions, you can elevate your photography to new heights. Embrace the power of Lens Correction to ensure your images are a true reflection of your creative vision.","domain":"optical_engineering"}
{"url":"http://www.shorenewstoday.com/classifieds/other/ads/coastal-jersey-eye-center/pdfdisplayad_f7befc24-94c6-512a-9464-8bcc0d014be8.html","date":"2017-06-22T22:13:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128319912.4/warc/CC-MAIN-20170622220117-20170623000117-00163.warc.gz","language_score":0.9285920858383179,"token_count":562,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__149641707","lang":"en","text":"Details for COASTAL JERSEY EYE CENTER\nADVERTISEMENT ADVERTISEMENT Extended Range IOLs Extended Range Intraocular Lenses Redefine Cataract Surgery T he holy grail of cataract surgery in the last decade has been to provide our patients with the most natural vision possible with the least need for glasses. This ongoing effort over the last 15 years has culminated with the Symfony Extended Depth of Focus Intraocular Lens (IOL). With the tremendous advances in the technology and techniques of cataract surgery over the last 20 years, success rates are at an all-time high exceeding 99%. Over 2 million cataract surgeries were performed in the U.S. alone last year. The Symfony IOL works by spreading light over an extended range within the eye, allowing a full range of continuous high-quality vision. This is a breakthrough in the field of optics, since other surgically implanted lenses focus at a single distance, usually far. To focus on near objects, reading glasses are usually needed. Patients who choose the TECNIS Symfony® lens are very likely to have little or no need for glasses after surgery. Previous attempts at providing independence from glasses (multifocal IOLs) produced a low but unacceptable rate of glare and haloes. Multifocal IOLs split the light into 2 distinct focal points which increased glare and haloes in some individuals and left gaps in the area of clear vision, especially at arm’s length, e.g. computer and tablet viewing, shopping, cooking, etc. Symfony provides a significantly better solution by elongating the focus, which results in an increased depth of field. Clinical studies have shown that this lens provides high-quality vision in day and night conditions with very little halo or glare. The signature benefit of the Symfony IOL is that it also comes in a toric form allowing patients with astigmatism to have the opportunity to achieve excellent vision at distance and near. Since upwards of one-third of people undergoing cataract surgery have significant astigmatism, they too can take advantage of the full range of continuous high-quality vision. If you have cataracts, ask us about your options. If surgery is recommended, this new type of intraocular lens may be right for you. Stephen H. Uretsky, MD of the Coastal Jersey Eye Center is a leading board-certified ophthalmologist specializing in comprehensive eye care. The Coastal Jersey Eye Center has offices in Linwood and Cape May Court House. To make an appointment, call 609-927-3373 for Linwood or 609-465-7926 for Cape May Court House, or visit CoastalJerseyEye.com.","domain":"optical_engineering"}
{"url":"https://bonmixc.com/products/21mp-full-hd-hunting-camera","date":"2023-05-28T12:41:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643784.62/warc/CC-MAIN-20230528114832-20230528144832-00026.warc.gz","language_score":0.7299664616584778,"token_count":663,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__294414626","lang":"en","text":"- ⏩【18MP HIGH QUALITY IMAGE & 1080P HD VIDEO】BONMIXC infrared trail camera comes with a 2.4\" viewing screen allows you to conveniently check images while in the field. The 18.0 MP image resolution with automatic day/night sensor snaps clear photos of passing wildlife. 1080P HD video recording with audio from 3 seconds to 10 minutes.\n- ⏩【EXCELLENT NIGHT VISION & 46PCS INFRARED LEDS】This wild game camera features 46pcs low-glow IR LEDs for nighttime photos without spooking the animals and hunters. It has excellent night vision to 65ft in total darkness. Takes specialized motion-activated sensor, provides the brightest and clearest nighttime images available.\n- ⏩【0.2S TRIGGER SPEED & 120° DETECTION ANGLE】Built-in 3 infrared motion sensors with 0.2-second fast trigger speed, this hunting motion camera allows you to capture each detected movement quickly and accurately. 120-degree wide angle lens with 82ft detection range, allows you to get excellent broader view. Great as outdoor camera for your backyard or even your farm.\n- ⏩【IP66 WATERPROOF & LONG-LASTING】The deer camera is built to last and super easy to setup. Its robust and weatherproof housing helps to keep the camera well protected outdoors. Using alkaline batteries or 6V external power supply will keep it working longer, last up to 16 months in standby mode. Accepts up to 32GB MicroSD card and 8 AA batteries required (not included).\nImage sensor: 18MP CMOS\nOptical Zoom: Fixed Focus\nSpecial Feature: Weather-resistant\nImage resolution: 18MP/12MP/8MP\nVideo clip: 1920 * 1080 / 25fps, 1280 * 720 / 30fps, 720 * 480 / 30fps, 640 * 480 / 30fps, 320 * 240 / 30fps\nThe number of IR: 46pcs black IR flash LEDs\nRange of IR flash: 20M\ntriggering distance: 20M\nPrep PIR sensing angles: 120 degree wide detection angle\nTriggering time: 0.6S (when using the 4G TF card)\neffectiveness daytime: 1m-infinitive,\nnight time: 1.5m-20m\ncamera+video: First take picture then video\nTV out : yes\nPc interface Mini :USB 2.0\nWater resistance: IP66\nDimension and weight: Camera:130x92x80mm/0.288kg\nFile Format: JPG/AVI\nOperating Temperature: -20℃ to +60℃\nPower supply : 8X AA baterry,external battery 6V/1.5A,support solar battery (optional) lcd 2.4 inch TFT LCD\nstorage TF card maxed support : 32G\nPackaging & Delivery\n- Selling Units: Single item\n- Single package size: 17X12X7 cm\n- Single gross weight: 1.000 kg","domain":"optical_engineering"}
{"url":"https://fr.zgsm-china.com/blog/working-temperature-of-leds-and-led-driver-electric-street-light.html","date":"2024-02-28T08:42:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474700.89/warc/CC-MAIN-20240228080245-20240228110245-00590.warc.gz","language_score":0.923586368560791,"token_count":2229,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__96599691","lang":"en","text":"Working temperature of LEDs and LED driver – electric street light\nWorking temperature of LEDs and LED driver – electric street light\nGenerally speaking, LED lamps will generate a certain amount of heat when running, but compared to traditional light sources (such as incandescent lamps), LEDs usually generate lower temperatures. However, LED lamps still need to operate within a reasonable temperature range. If the designed operating temperature is exceeded, the lamp may not operate properly or even be damaged due to heat accumulation. The temperature of LED lamps is affected by many factors, including the power of LED lamps, LED power supply performance, heat dissipation design of lamps, ambient temperature, and working hours. The higher the power of the LED chips /the worse the power supply performance/the unreasonable heat dissipation design of the lamp/the higher the ambient temperature and the longer the working time, the higher the temperature of the entire lamp may be. This is bound to have an adverse effect on the main components of the lamp (such as LEDs and power supply) which may finally cause electric street light outage. In order to ensure the long-term stable operation of LED lamps, designers usually consider reasonable design, including structure, circuit and heat dissipation, to control the temperature of the LED chip and power supply to prevent overheating. Below is the thermal camera of ZGSM Rifle and H series electric street lights.\nWhy we should care about the temperature?\nThe temperature of LED lamps involves many aspects such as the working temperature of the LED chip and power supply, the shell temperature, the ambient temperature, and the usage conditions. Designers need to take these factors into consideration to ensure that LED lamps work within a safe range and have good heat dissipation performance to ensure long-term stable operation – prevent street light outage.\n- Excessive temperature will aggravate the light decay of LED chips. By referring to the LM80 report of the lamp bead, we can know that the higher the temperature, the worse the L70 lifetime result, that is, the more serious the light attenuation is.\n- Excessive temperature will cause the failure rate of LED chips to increase. Studies have shown that excessive heat can cause thermal stress on LED components (such as solder joints and circuit boards), leading to failure and damage to the entire module.\n- Excessive temperature will cause the failure rate of LED power supply to increase. By referring to the power supply specifications, we can find that as the temperature increases, the MTBF (Mean Time Between Failures) will decrease.\n- The lower the ambient temperature of the lamp when it is designed, the worse the effect may be when used in extreme environments. For example, the ambient temperature in some countries in the Middle East may rise above 40 degrees. We need to consider this situation when designing lighting fixtures.\nWorking temperature of LED chips\nLED chips mainly convert electrical energy into light energy. During this process, part of the electrical energy is converted into heat energy. The LED chips will therefore gradually generate heat, and their temperature will gradually rise. When the heat generated by the lamp beads and the heat lost reach a balance, the temperature will no longer change. If the temperature remains within the rated operating temperature range of the LED lamp bead, the LED is in normal working condition. However, within the rated operating temperature range, the higher the temperature, the more obvious the light attenuation (referring to the attenuation of light output). Therefore, it is necessary to take appropriate design and heat dissipation measures to control the temperature of the LED lamp beads to ensure the life and performance of the LED. Generally speaking, the rated operating temperature range of LEDs is usually between -40 and 105°C. If the temperature exceeds 105°C, the LED lamp beads may be at risk of damage. As shown in the figure below, it shows the light attenuation of LED at different temperatures.\nWorking temperature of LED driver\nAs the core component of LED lamps, the main function of LED power supply is to convert alternating current into direct current to supply the electrical energy required for the normal operation of LED chips. During this conversion process, various components of the LED power supply will consume electrical energy, and part of the energy will be converted into heat and released. Normally, the operating temperature of LED power supplies is not too high. However, under special circumstances, such as when the working environment temperature is high or the LED radiator is too close to the LED power supply, the temperature of the LED power supply may rise and the LED power supply may not work properly. Generally speaking, the best working temperature of LED power supply is about 60 degrees. At this temperature, the service life of LED power supply is longer. In general, the designed operating temperature of LED power supply is between -40 and 80°C. If the temperature exceeds 80℃, the LED power supply may be damaged. As shown in the figure below, the life curve of the LED power supply at different temperatures is shown.\nWorking temperature of LED lamps (relationship between LEDs, LED power supply and LED lamps)\nThe operating temperature of LED lamps is an important factor in ensuring their stable operation and long-term performance. When designing LED lamps, the operating temperatures of the LED chip, power supply and housing, as well as the temperature of the surrounding environment, must be comprehensively considered. For example, if the nominal maximum operating temperature of the lamp is 50°C, exceeding this temperature will increase the risk of damage to the lamp (including power supply and LEDs). How is this temperature confirmed? ZGSM is mainly determined by referring to the performance of LED lamps(street lights and flood lights) and power supplies at different temperatures. For example, at 50°C, the Ts point temperature of the LED lamp is 85°C. We can infer that the temperature of the Tj point is close to 100°C. This temperature is close to the maximum operating temperature recommended by the LEDs manufacturer, so 50°C is confirmed as the lamp. the maximum operating temperature. Because it is not difficult to understand that when the ambient temperature exceeds 50°C, the temperature of the main components of the lamp (such as LEDs and power supply) will further rise. Although it may not have much impact on the lamps in a short period of time, long-term high-temperature operation will inevitably lead to component aging and damage.\nAdvantages of separating cavities for LEDs and LED driver of electric street light\nZGSM believes that the separation of the light-emitting cavity and the power supply cavity in LED lamps has many advantages, the most important of which is to reduce the heat interaction between the LED chips and the LED power supply. The heat generated by the LED chips will not be conducted to the LED power supply, preventing the LED power supply from exceeding the maximum operating temperature and stopping working. Because LED power supplies usually have overheating protection, once the temperature exceeds the limit, the power supply will automatically cut off the output. Similarly, the heat generated by the LED power supply will not be conducted to the LED chips, preventing the LED chips from not dissipating heat in time, accelerating light decay and causing damage to the chips. Therefore, it is necessary to ensure that there is a certain distance between the LED light source and the power supply to ensure that the heat generated by each does not interfere with each other. In addition, there are other benefits to separating the light-emitting cavity and the power cavity. Below is the design of our Falcon electric street light with separating cavities.\nMore convenient maintenance and replacement: The partition design makes the maintenance and replacement of LED lamps more convenient. When the LED power supply fails, we only need to open the power supply cavity for replacement. This process does not involve the disassembly of the light-emitting cavity, which simplifies the maintenance process and avoids the possible impact of disassembly on the performance of the lamp (such as waterproof performance, cleaning of the lamp lens, etc.). The same is true when replacing LED chips, although LEDs rarely fail.\nImproved design flexibility: Separating the light-emitting cavity and the power cavity also provides design flexibility. In the light-emitting cavity part, we only need to consider the structural design and component installation of the light-emitting unit. In the power cavity part, only the structural design and component installation of the power supply, surge protection and base need to be considered. Because the two are separated, manufacturers can design higher-wattage lamps in smaller housings or achieve more functions while maintaining performance.\nZGSM LED lights\nZGSM’s products must undergo temperature testing. We will consider this in the early stages of lighting design. After the model is made, we will test the temperature of the entire lamp’s LED chips (Ts) and the temperature of the LED power supply (Tc) to evaluate the rationality of the design. After the design is completed, we will entrust a third-party experiment to conduct the ISTMT test, which is a report on Ts and Tc temperature. In addition, we offer other reports including LM82, LM84, and TM21 that are also related to the temperature of the fixture. The following are ZGSM products(electric street lights, post top lights, flood lights, canopy lights and high mast lights), please contact us if you need them.\nAs can be learned from the previous sections, LED chips and power supplies can work normally within an appropriate temperature range. Therefore, when designing a lamp, it is necessary to consider its usage environment to ensure that the temperature does not exceed its specified limit value. The working temperature of LED chips and power supply directly affects the overall performance and life of LED lamps. Effective temperature management is critical to the stability and long-term reliability of LED systems. In the ISTMT report of electric street light, we can obtain the Ts temperature data of the LED chip and the Tc temperature data of the power supply. ZGSM evaluates the performance of the LED system based on these data, and if necessary, adjusts the driving current of the LEDs, lamp structure and power supply. At the same time, we need to ensure that the light-emitting cavity and power cavity of the LED lamp are independent of each other as much as possible. This helps to prevent the interaction between the heat of the power supply and the heat of the LED chips, thereby extending the service life of each component. Welcome to contact ZGSM for more relevant information.\nPeople also ask\nMy name is Taylor Gong, I’m the product manager of ZGSM Tech. I have been in the LED lights industry for more than 13 years. Good at lighting design, street light system configuration, and bidding technology support. Feel free to contact us. I’m happy to provide you with the best service and products.\nEmail: [email protected] | WhatsApp: +8615068758483","domain":"optical_engineering"}
{"url":"https://img2.onyxsolar.com/product-services/multifunctional-properties","date":"2024-04-19T01:48:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817253.5/warc/CC-MAIN-20240419013002-20240419043002-00435.warc.gz","language_score":0.9285567402839661,"token_count":415,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__144935880","lang":"en","text":"Our photovoltaic glass has been designed to offer buildings a multi-functional performance. Passive properties include thermal and sound insulation, and also natural light. However, it also offers an active property, the energy it generates.\nPV Glass enhances comfort inside buildings by filtering out UV and IR radiation, and combats noise pollution as a conventional architectural glass.\nFREE AND CLEAN ENERGY\nCan you imagine your windows paying for your electricity bill? Yes, this is possible. Our photovoltaic glass generates free, clean electricity from the Sun thanks to the solar cells embedded in its architecture. Install PV Glass and give your bill a break!\nThe “U-value” measures the amount of heat that passes through the glazing when there is a difference in temperature between its two sides. The lower this value is, the higher the thermal insulation. Onyx Solar’s PV glass offers values up to 0.13 BTU/SqFtK, which ties to the highest performing glass products in the market.\nOPTIMIZED SOLAR FACTOR\nThe solar factor, also known as “g-value” or SHGC, is key to achieve thermal comfort inside the building. Onyx Solar’s glass offers a solar factor between 10% to 40%, which makes it an ideal element to improve indoor comfort.\nHARMFUL RADIATION FILTER\nThe architectural PV glass developed by Onyx Solar reduces the transmission of infrared radiation by up to 95% compared to a conventional laminated glass:; it also filters out 99% of the ultraviolet radiation (UV), which accelerates interior ageing.\nOnyx Solar’s PV Glass has been designed to provide natural light in a diffuse manner. Rather than having your windows covered with blinds, PV Glass allows for you to enjoy unobstructed views, enjoy natural light and to avoid glare.","domain":"optical_engineering"}
{"url":"http://hptb.robopolis-company.ru/30-4802ff5ce7","date":"2021-10-19T08:04:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585246.50/warc/CC-MAIN-20211019074128-20211019104128-00562.warc.gz","language_score":0.9124945998191833,"token_count":2339,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__150631876","lang":"en","text":"” You can then choose which type of Transitions will transitions coating suit you best. Different Fe(Al) transition coatings were analyzed using XRD, SEM, TEM and EDS. Whatever the situation, from the ordinary to the extraordinary, incidents and transitions coating bad habits will no longer have the same impact on the lens, leaving you free to live your life however you’d like. Crizal ® Rock™ coating offers the best combination against scratches and smudges 3 thanks to a unique technology to protect your lenses.\n50 + Transitions ® XTRActive: 6. The FeAl, FeAl 2 and transitions Fe 3 Al coatings were successfully deposited on the silicon substrate and formed columnar crystals. An anti-reflective coating is for reducing reflections from the front of your lenses like glares from headlights, phone, computers or TV screens.\nYou’ll enjoy certified stylish protection that blocks 100% of UVA and UVB rays — plus filters harmful transitions coating blue light indoors and out. 49 + Transitions ® XTRActive: . Crizal anti-glare lenses provide the clearest vision possible, with protection against glare, scratches, smudges, water, dust, and even UV rays. The photochromatic layer of Transitions lenses is molded into the lens itself. Discover Transitions Optical photochromic lenses and transitions coating glasses. On one hand, the transition lenses. Transition lenses. Very bright conditions.\n50 Index - Clear Lenses: . Coatings included (FREE) Price; UV* AR: SR: from. For patients with health insurance, out-of-pocket costs typically consist of doctor visit copays and coinsurance of 10%-50% for the glasses. 00 + Transitions ® . Myth 2: Transitions lenses cannot turn dark in the car. The training programme has been specifically developed for personnel who have an interest in surface treatment and corrosion control with the use of transitions protective coatings. Transition lenses don’t get as dark transitions coating as standard sunglasses. →Tip: Add an anti-reflective coating!\nA transition lens will only protect against glare, if they are a polarized transition (like transitions coating the Transition Vantage) or if there is anti-reflective coating on them. Moreover, there is various transition lens product to select from. These lenses have been around for a decade or more, and they offer the convenience of sunglasses without having to wear them over your prescription glasses or having to constantly switch between the transitions two. To understand the need for having an anti-reflective transitions coating coating on transition lenses, it is important to understand the purpose of both the features transitions coating of the lenses. Transitions XTRActive lenses are compatible with all premium AR coatings and hardcoats.\nSee more videos for Transitions Coating. Transitions lenses are also compatible with lens treatments and options such as anti-reflective (AR) coatings, scratch transitions coating resistant coatings and edge polish transitions coating (which removes the frosted look from lens edges). * EXPLORE OUR LENSES Light Intelligent Lenses. More Transitions Coating images. transitions 53 - Clear Lenses: 9. com : \"The Transitions is a coating added on lenses different lab manufacturers send us. 50 + NuPolar (Polarised) . When placing your order with us, you’ll see the option to include Transitions lenses under “Features.\nAR coating is highly recommended for transitions all eyeglass lenses, but especially for transitions coating polycarbonate, high-index and aspheric lenses, which all reflect more light than regular lenses. There is no \"coating\" that can be reapplied--they come that way straight from the factory (which is just down the. It can also have added protection with other coatings. Myth 1: Transitions lenses aren’t fully clear indoors. Transitions Optical has also developed Transitions Vantage, lenses with a minimal indoor tint and a stronger polarization effect for outdoor darkening. Transitions Signature VII lenses are fully clear indoors in all colors: grey, brown, and graphite green. Take away the sun and they revert back. When these lenses are exposed to light, the lenses darken in color, and in the absence of light, become clear again.\nAlso, you can choose to do obtain scratch resistance for big outdoor activities. The transitions coating greater the intensity of UV rays, the darker the lenses become. OUR BEST LENSES FOR EXTRA PROTECTION, EVEN IN transitions coating THE CAR. A high-quality coating is worth the money. Fortunately, I remembered having a third pair of glasses with the old prescription, an A/R coating, and a standard Transitions coating. This offers users a better degree of glare control in conditions that are bright and reflective. These original glasses formerly had an A/R coating and a yellow tinted lens, and did not exhibit the glare problem at night with the old treatment. Transitions COA register your lenses.\nSolves problems — transitions from oil to water-based top coats; Protects indoor air quality — in combination with two coats of AFM Zero VOC paint, it encapsulates coatings emitting VOCs underneath it and stops off-gassing; Odorless when transitions coating dried — full cure is 1-2 transitions coating weeks depending upon temp and humidity. Transitions ® XTRActive ® Lenses. This will make the lens look even clearer at night and indoors because it blocks out reflections from the lenses themselves and. Yes, you can have a blue control type anti-reflective coating applied to photochromatic lenses (brand name Transitions). transitions coating Introducing four vibrant new Transitions style colors that allow you to personalize any frame to further express your style Fully clear indoors and dark outdoors, these are our fastest and most responsive hassle-free lenses for everyday eyecare.\nTransition lenses, or photochromic lenses, are the lenses that darken in the sunlight and lighten in softer light or the dark. A standard transition will lessen the brightness of the sun, but will not protect against glare. Photochromic lenses are eyeglass lenses where transitions coating photochromic molecules on the lens react to light and change their structure, causing the lens to darken. Transitions ® adaptive lenses selectively filter Harmful Blue Light and provide at least 20% protection indoors transitions coating and over 85% protection outdoors. Transitions can definitely be transitions coating combined with Anti-reflective coating for those of you who would like the extra glare protection. \" B I discussed my concerns with the Optical manager at the Costco nearest to their HQ in WA.\nTypically applied on both sides of an eyeglass lens, this coating, also known as AR or anti-glare, “reduces the amount of light reflected off the surfaces of spectacle lenses. 49 + Drivewear: 3. Photochromic lenses are eyeglass lenses where photochromic molecules on the lens react to light and change their structure, causing the lens to darken. 59 Polycarbonate - Clear Lenses: 5. Apply a thin coating of Armor transitions coating Etch glass etching compound to the plastic lenses of your glasses. The AR is a multicoat on the surface and the photochromatic is within the lens material.\nAR coating improves light transitions coating transmission through the lens for night driving and helps photochromic lenses reduce glare in bright sunlight. Get adaptive lenses and designer sunglasses for UV protection from Transitions. Transitions lenses are equipped with patented, photochromic dyes that enable the lenses to rapidly activate, or darken, when they are exposed to the transitions coating sun’s ultraviolet light. Where can I purchase Transitions lenses? Let the solution sit for several minutes and then remove it with water and the mildly abrasive cloth. The Armor Etch will remove the scratch-resistant coating on your Transition lenses and any superficial scratches that are on that surface. 00 + Transitions ® 3.\nApplied to your glasses lenses, this coating blocks harmful UV light from being transmitted through the lens as well as reflected off the back of the lens into your eyes. Yes it is available on many different types of indexes including 1. Transitions transitions coating Signature GEN 8 Lenses offer the fastest and most responsive lens in all lighting conditions. They function as clear, standard prescription glasses indoors or at night, but expose them to the sun, and the automatically convert into sunglasses. And the hardcoat on Transitions XTRActive lenses can easily transitions coating be removed in a lab for AR application or proprietary hardcoats, if necessary. transitions coating If you’re thinking transitions coating about buying Transition lenses, it’s important to consider these factors before making your purchase.\nA reply from CS @ Transisitons. Transition transitions Lenses with Anti-Glare Coatings. The coatings consisted of approximately 2 μm thick Fe(Al) transition coatings and approximately 100 nm thick Al 2 O 3 coatings. Transitions ® XTRActive ® lenses are uniquely designed to protect your eyes from the brightest sun outdoors and transitions coating harsh artificial light indoors. Each coating’s glass transition temperature (Tg) is a net result of the effects of its constituents as well as the composition and ratio of the resin used. Additionally, if you have Transitions that are transitions coating old enough to be worn out, it’s probably time to transitions coating get a new prescription anyway! transitions coating LIGHT INTELLIGENT LENSES WITH BREAKTHROUGH TECHNOLOGY The Ideal Lens for Everyday Life Launched in, Transitions® transitions coating Signature® GEN 8™ is the first light intelligent photochromic lens with a revolutionary nano-composite technology that pushes photochromic performance and offers optimum vision, comfort and protection all day long. When are Transitions not the best option?\nYou never again transitions coating need to buy or carry around two sets of prescription glasses. Transition ™ is a brand most known for their high-quality photochromic lenses. Transitions XTRActive lenses darken behind the car windshield. For any coating chemist, the glass transition temperature is an important thermal property of transitions coatings which contributes to determining their application area and service life properties. Even at their darkest, Transitions generally don’t get as dark as transitions coating a pair of dark sunglasses. Coating Inspector Transition is a transitions coating unique training package for the protective coatings industry. This is caused by the molecules inside the lenses reacting to high levels of ultraviolet (UV) light, absorbing it, and changing tints in response. Transitions® lenses help you see more of life, beautifully.\nAs a matter of fact, Transition lenses with anti-reflective coating would work even more effectively at reducing distracting glare and reducing the discomfort normally associated with glare. Scratch-Resistant Coating. For the darkest tint, I’d recommend Transitions XTRActive in gray. (c) Except portions of pipelines in offshore splash zones or soil-to-air interfaces,. coat each pipeline or portion of pipeline that is exposed to the atmosphere Except section (c) WITH (b) Coating material suitable for the prevention of atmospheric corrosion. How much you can expect to pay out of pocket for transitions lenses, including what people paid in.\n-> Simple solid scene transitions free\n-> News about studio transitions baltimore","domain":"optical_engineering"}
{"url":"https://www.grohydro.co.za/product/method-seven-resistance-fx-classic-fgv241/","date":"2024-04-19T21:23:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817455.17/warc/CC-MAIN-20240419203449-20240419233449-00856.warc.gz","language_score":0.885845422744751,"token_count":320,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__149966909","lang":"en","text":"Are you over seeing spots? So are we. Designed in conjunction with Carl Zeiss Laboratories, ophthalmologists, optical physicists, and even an electrical engineer, the FX Classic lens is an engineering marvel. It’s made specifically to keep your eyes comfortable and safe under bright white full spectrum LED lights and CMH / LEC lamps, minus the spots. An anti-reflective coating cuts glare, and infrared reduction beats the heat, keeping your eyes cool and moist under bright grow room lights. It might look like a sunny day under full spectrum lights, but LED technology emits powerful band radiation, while CMH / LEC lamps contain UV and infrared. That’s why high quality grow room glasses are an essential tool in the grow room. Crafted from a durable polymer, the FX Classic lens delivers the highest possible amount of safe light to your eyes, achieving the perfect light/dark balance so you don’t have to take your glasses off to see deep into your canopy. Can regular sunglasses do that? Nope. If you’re still reading this, it’s time to pull the trigger.\nThe original, award winning Resistance frame keeps you covered in comfort for long hours. This classic Base 8 style is molded in Italy with lightweight TR-90 thermoplastic for the best in durability and flexibility. Featuring inset nose and temple pads, the Resistance stays in place so you can stay focused.\nEye Width: 62mm\nTemple Length: 130mm","domain":"optical_engineering"}
{"url":"http://www.integral-led.com/","date":"2014-09-02T23:39:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-35/segments/1409535923940.4/warc/CC-MAIN-20140909034906-00238-ip-10-180-136-8.ec2.internal.warc.gz","language_score":0.8704552054405212,"token_count":191,"dump":"CC-MAIN-2014-35","global_id":"webtext-fineweb__CC-MAIN-2014-35__0__147453650","lang":"en","text":"Integral LED 5.3W warm white lamp awarded Which? magazine's BEST BUY for LED Spotlights\nHigh-spec, Great value, Easy install. Excellent wide beam light output. 5 year warranty. Emergency versions available.\nHigh quality LEDs for excellent light output and colour consistency across the strip. Available in indoor (IP33) and outdoor (IP67) versions.\nSuper-wide beam angle for all round, omnidirectional light. Ultra energy efficient A++ energy rating. Retro-look style and lightweight body.\nWhat are Lumens?Why LED?Warm white or Cool white?LED - What are the differences?\nTry out our savings calculator and find out how much you can save by switching to LED lighting.\nWant to find out exactly which LED bulb you require? Use our LED bulb finder to help you work it out.\nVisit our news section to read some of our latest articles. News","domain":"optical_engineering"}
{"url":"https://www.heidenhain.si/sl_SI/tehnicni-servis/servisne-storitve/dakks-calibration/","date":"2024-02-25T08:49:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474594.56/warc/CC-MAIN-20240225071740-20240225101740-00869.warc.gz","language_score":0.9015094041824341,"token_count":144,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__134409416","lang":"en","text":"The HEIDENHAIN measuring laboratory has been accredited since 1994 to perform measurements for digital linear and angle encoders as per DIN EN ISO/IEC 17025.\nThe German Accreditation Body (previously: German Calibration Service DKD) inspects and monitors the measuring laboratory and certifies HEIDENHAIN its personnel and metrological competence within the framework of the accreditation.\nDAkkS calibrations conducted by our measuring laboratory give the user certainty about the correct measurement with digital and angle measuring encoders. The created calibration certificate documents the generally acknowledged traceability of the encoder by an independent and neutral institution.\nTel. +49 8669 31-3123","domain":"optical_engineering"}
{"url":"https://kmlabs.com/product/stryde-blue-direct-diode-pumped-ultrafast-tisapphire-oscillator/","date":"2017-12-17T23:07:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948599156.77/warc/CC-MAIN-20171217230057-20171218012057-00497.warc.gz","language_score":0.848131000995636,"token_count":295,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__203170301","lang":"en","text":"New in 2017, the StrydeTM Blue is the world’s first commercial direct diode-pumped Ti:Sapphire oscillator. It is a fully engineered and integrated commercial source based on a single rugged opto-mechanical platform, and eliminates the need for costly frequency-doubled vanadate pump lasers.\nStrydeTM Blue Unique Features:\n- Pumped by a single integrated laser diode\n- Exceptional long-term stability: demonstrated >500 hours of <0.5% RMS\n- Computer-controlled tuning of center wavelength and spectral bandwidth\n- Ultrashort sub-15fs pulses\nMultiphoton microscopy is used in a broad range of fields, including medical diagnostics and basic science. Femtosecond lasers offer the intensities ideal for multiphoton microscopy, however the laser system has the potential to be the cost limiting factor in the broader use of this technique.\nIn this work, the Authors implement direct-diode pumped femtosecond Ti:sapphire oscillator (KMLabs -Stryde Blue). Diode lasers are far cheaper than the solid state pump lasers currently used, thus making femtosecond oscilators far more accessible.\nBoth 50fs and 15fs pulse are used to perform multiphoton microscopy on various samples, ranging from micro-machined fused silica, to biological samples.","domain":"optical_engineering"}
{"url":"http://www.bestscope.net/index.php?c=content&a=show&id=141","date":"2019-04-24T20:55:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578656640.56/warc/CC-MAIN-20190424194348-20190424220348-00103.warc.gz","language_score":0.7702507972717285,"token_count":566,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__103106541","lang":"en","text":"VISION UNITY Series Smart Industrial Digital Camera SCZE130M-GEHD\nVISION UNITY Series Smart Industrial Digital Camera -V1.0\nWith technical progress in FPGA, the ARM based SoC FPGA platform integrates an enhanced ARM processor, customizable FPGA, memory controllers and peripherals, which allow traditional industrial cameras and PC systems combination change to a compact smart camera with functions of image capture, process, analyze and transmission. Miniaturization, distributed, networked and highly integrated embedded intelligent vision system is becoming a trend of future.\nOur latest SCZGE series smart camera adopts Xilinx's latest Zynq-7000 All Programmable SoC platform, which is based on a 28nm technical process, tightly integrates the ARM processor and FPGA framework. PS unit has high performance and low power consumption features of dual-core ARMCortex-A9 MPCore; PL unit has up to 74K logic unit and 160 DSP hardware processing unit; integrated 1GB DDR3 memory and 4GB eMMC. The SCZGE series smart camera can meet the strict requirements of industrial vision HD acquisition, high-speed real-time processing, compact structure and high reliability.\nAt the same time the camera has various of peripheral interfaces, GigE, RS232, HDMI, TF card, GPIO, etc., with the tailored custom linux kernel v4.0.0 version which is released in 2015 and embedded image acquisition SDK interface, the camera can simplify visual application development process, adapt to complex and changing industrial field applications. In addition, with Vivado HLS, a hardware acceleration tool which is provided by Xilinx, can convert users’ parallelizable C / C ++ image processing algorithms into VHDL or Verilog hardware description language and use the FPGA in the system to accelerate hardware and optimize system performance.\nDual-core ARM Cortex-A9 processor\nHighest Dominant Frequency\n1GB DDR3 SDRAM\nTF Card, support upto 64Gb\n1 USB2.0 HOST, 1 RS232, 1 GigE, PS MIO with optocoupler isolation, 4 outputs / 2 inputs, 1 external trigger input, 1 flash output, 1 HDMI output, 1 USB input\n1 power indicator, 2 user-programmable bi-color working status indicator, 1 bi-color network status indicator\n1/1.8” CMOS sensor, E2V EV76C560\n-30 - 80℃\n70.0 mm x 47.0 mm x 32.5mm\nCamera Net Weight\n12V power supply / M12-8 Gigabit Ethernet cable / M12-15 power cable / HDMI cable\nDownload the product brochure","domain":"optical_engineering"}
{"url":"http://http.sdaforum.mwik.com/t156-Ratiometric-Imaging-Image-J-Software-24.htm","date":"2018-11-17T12:52:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039743521.59/warc/CC-MAIN-20181117123417-20181117145417-00248.warc.gz","language_score":0.7779306769371033,"token_count":426,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__168981921","lang":"en","text":"Conference 2015 Program - ImageJ Conference 2015 Program.. .. number of imaging techniques that require processing like Ratiometric imaging.. .. the methods used in the Image J software to complete .\nA Ratiometric Sensor for Imaging Insulin Secretion in . A Ratiometric Sensor for Imaging Insulin Secretion .. RINS1 enables ratiometric imaging of stimulated insulin secretion .. K.W.. EliceiriNIH Image to ImageJ: 25 .\nImageJ User Guide - IJ 1.46r Credits and Publications ImageJ Related Publications  .. computed tomography imaging software to .. intensity-based ratiometric FRET in image cytometry .\nMeasuring Cell Fluorescence using ImageJ Science Tech Blog 200 responses to Measuring Cell Fluorescence using ImageJ .. them combing them into a single image (per channel) using ImageJ .. in this image J software.\nFirearms and Hunting Image Intensity Processing.. .. Ratiometric imaging compares the recordings of two different signals to see if there .. //imagej.net/index.php?title=ImageIntensity .\nRatiometric Calcium Imaging of Individual Neurons in . Ratiometric Calcium Imaging of .. of Individual Neurons in Behaving Caenorhabditis Elegans.. .. the Ratiometric Quantitation software.. 4.. Image .\nHow can I calculate FRET efficiency and also process . How can I calculate FRET efficiency and also process images .. it's a software problem and not my image .\nRiFRET - ImageJ plugin for (sensitized emission . RiFRET - an ImageJ plugin for the evaluation of intensity-based FRET images .. Evaluation of Intensity-Based Ratiometric FRET in Image Cytometry .. 24 May 2010 .\nCa2+-Sensitive Fluorescent Dyes and Intracellular Ca2+ Imaging An additional adjustment that is required for ratiometric imaging .. ANALYZING IMAGING DATA WITH IMAGEJ.. ImageJ is an open-source software .. Lasers Med Sci 24: .","domain":"optical_engineering"}
{"url":"http://reidsoha112.mybjjblog.com/two-challenges-individuals-do-certainly-not-realize-regarding-to-lasik-eye-treatments-5354409","date":"2019-01-17T09:03:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583658901.41/warc/CC-MAIN-20190117082302-20190117104302-00585.warc.gz","language_score":0.9544132351875305,"token_count":886,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__13105788","lang":"en","text":"Two Challenges Individuals Do Certainly Not Realize Regarding To LASIK Eye TreatmentsThe eye can be examined with relative ease as to both its function and its structure. A practical assessment includes the capability to move in the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye might be tested in several ways. The client may be asked to recognize illuminated letter or things of differing sizes on exactly what is referred to as the Snellen chart.\nAlternatively, the evaluation of the structural part of the eye might be made in numerous ways. Tension within the eyeball is determined by a \"tonometer.\" In certain diseases, particularly in glaucoma, the stress in the eyeball is increased significantly.\nHowever, it needs to be well remembered that a client with an eye issue might have other problems also. Frequently other physical conditions are main and affect the eye as a consequence. The look of the eye can signal the doctor and the client to problems in some disruptions of other parts of the body even before other signs provide themselves.\nSubsequently, one's dependence on sight is highlighted when one faces a possible or short-lived permanent loss of this vital sense. For this reason, when restorative steps are sought, certain kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some people are troubled with the truth that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgical treatment is another type of vision correction. The only distinction is that with this kind of surgery, one's vision is fixed completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to know. Probably, the primary reason that this kind of eye surgery has become well accepted is since the majority of its cases had actually succeeded.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nDue to the fact that LASIK eye surgery go to this site involves the operation of the retina, which is among the most delicate portions of the eye, most people say that the operation can be very dangerous.\nIn other words, a simple mistake could almost cause an person's life time blindness. For this reason, it is necessary to think about lots of aspects prior to deciding whether LASIK eye surgery is the best corrective step one has to undergo.\n2. It is not a best treatment\nLASIK eye surgical treatment may fix your vision but it does not necessarily indicate that it can give you a ideal vision. Even if why not look here statistical reports show that 70% of the patients might have 20/20 vision, this does not always suggest they have perfect vision.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the ideal eye surgery the way the majority of people see it\nAlternatively, the evaluation browse around here of the structural part of the eye may be made in numerous ways. It should be well remembered that a patient with an eye problem might have other problems. Typically other physical conditions are primary and affect the eye as a effect. The look of the eye can inform the client and the physician to troubles in some disruptions of other parts of the body even before other signs present themselves.\nLike its concrete counterpart, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://www.bicisportusa.com/product/tifosi-envy-444.htm","date":"2019-08-18T15:37:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313936.42/warc/CC-MAIN-20190818145013-20190818171013-00358.warc.gz","language_score":0.9200888872146606,"token_count":757,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__78057500","lang":"en","text":"Tifosi's Envy combines cool style with the latest technology, resulting in glasses that will be the envy of all! Tifosi's Enhanced Visual System uses polycarbonate decentered lenses for optical clarity, and Glare Guard to decrease eye fatigue. The adjustable hydrophilic rubber nosepiece and temples ensure they'll be comfortable and stay in place. Plus, with 3 lenses to choose from, you'll have optimal visibility in all conditions. They offer full protection from UVA and UVB rays, too.\nAC Red lens: allows up to 27% light transmission and is designed for all-conditions riding\nHigh Speed Red Fototec lens: goes from 12% to 35% tinted and is designed for road riding\nBackcountry Orange lens: goes from 15% to 45% and is designed for trail riding\nLight Night lens: goes from 19.5% to 85% and is designed for all uses\nEC lens (Extreme Contrast): designed for off-road use because it helps you distinguish terrain details\nGT lens (Golf/Tennis): designed for tracking balls in flight\nFor years professional athletes and casual sports enthusiasts alike have appreciated Tifosi glasses for their superb optics, outstanding protection and all-day comfort. If you're looking for awesome cycling glasses, you need to give them a try.\nThe Georgia-based company has made its mark with the racers on Jittery Joe's and Vanderkitten cycling teams, as well as with individual pros, like mountain climber Jordan Romero and golfing phenom Brittany Lincicome. With their superior technology, it's no wonder so many professionals trust Tifosi.\nTifosi's lens selection is as varied as the sports they're designed for, ensuring the perfect glasses for any activity. Their smart Fototec lenses adapt to changing conditions (photo, right), their glare-eliminating Polarized lenses are perfect for snow and water sports, their GT lenses create contrast to distinguish golf and tennis balls in play, and their Polarized Fototec lenses offer double the function.\nAll their lenses are made from shatterproof polycarbonate and offer not only high-impact protection, but also 100% protection from harmful UVA/UVB rays. Some lenses even have a reflective Glare Guard coating, which helps prevent eye fatigue. And, don't despair if you wear eyeglasses, because Tifosi's Optics Prescription Program allows the incorporation of most single-vision prescriptions into their lenses. They also have an Rx Adaptor that inserts into the Stelvio model without tools or mounting hardware for an economical option for eyeglass wearers.\nTifosis also boast tough sport frames that can take a beating thanks to Grilamid TR-90, a flexible homopolyamide nylon that has a low density and high resistance to chemical and UV damage, making it virtually indestructible. Plus, you'll have a perfect fit thanks to the adjustable (bend to fit) temples and nosepieces. And, the hydrophilic rubber they're made of grips even better when wet so the glasses always stay in place.\nStop by our shop to experience the fine Tifosi fit, feel and fashion in person!\nA total of 3 lenses are included, as follows: Metallic Silver, Metallic Baby Blue and Gloss Black models come with Clear, Smoke and AC Red lenses. Tortoise models come with the Golf lenses package with EC Lenses, AC Red Lenses, and GT Polarized Lenses.\nThe Envys fit small to medium faces.\nWeight: 21 grams\n|Metallic Baby Blue||874444002483||T-I305|","domain":"optical_engineering"}
{"url":"http://www.friendlyphotozone.com/photolink/man-res-serv/34-lenses","date":"2013-05-23T09:44:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703108201/warc/CC-MAIN-20130516111828-00003-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9032859802246094,"token_count":924,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__79020062","lang":"en","text":"Resellers & Services\nBuy & Sell\nPhotogs 4 Hire\nFPZ PhotoLink -\nManufacturers, Resellers & Services\nCompanies who produce camera lenses.\nCanon U.S.A., Inc., headquartered in Lake Success, New York, is a leading provider of consumer, business-to-business, and industrial digital imaging solutions. Canon products include: Cameras and EF Lenses Binoculars Camcorders Printers & Multifunction Scanners Network Video Solutions Projectors & Visualizers, etc. Check their website for more!\nWe pursue fine images that can not be acquired by digital cameras. We supply cameras that will never fail to catch the crucial moment to photographers. We believe our Rangefinder film camera has innumerable superiorities as a tool for photographic expression.\nAt Fujifilm we are working in many areas — from digital cameras to motion picture film, and computer media to medical imaging — to bring you better products, solve difficult problems and protect our planet's environment.\nFor over fifty years now, Hasselblad has been devoted to a very simple task: to producing the finest camera equipment known to man. And for over fifty years, we have succeeded in doing just that. In making the tools that will enable us to live up to the Hasselblad Brand Promise, “To Help Photographers Achieve Their Photographic Potential.”\nYou can always tell a Leica. By the way it takes pictures - and by the pictures it takes.\nLensbaby is Craig Strong's baby. Craig invented the Lensbaby Flexible Lens Mounting System (Patented) to bring a more organic look to his digital SLR camera. After getting enthusiastic feedback from fellow beta testers, Craig decided to make Lensbabies available. Lensbaby's Mission is to help professional and amateur photographers see and document their worlds in unique and creative ways.\nMamiya Leaf offers high–end digital photographic solutions to professional and advanced amateur photographers.Mamiya Leaf represents the finest in high end photographic solutions, and is dedicated to improving the quality of its products, technologies and services to support the advancement of professional digital photography.\nNikon continues to push the boundaries of optical technology. Nikon's history is one of challenges and exploration in the world of optics.\nPanasonic LUMIX digital still cameras with powerful zooms, stylish designs and advanced features like Face Detection, Optical Image Stabilization and Scene Selection. LUMIX DSL interchangeable lenses are available for both Four Thirds and Micro Four Thirds System compatible DSL cameras.\nFrom the Asahi PENTAX single-lens reflex camera to the Spotmatic and to our most recent K-5 and incredibly tiny Q, we've empowered and inspired photographers around the world. We're proud to be one of the world's leading suppliers of technically advanced products including digital cameras, sport optics and security products for consumers and businesses.\nPhase One is the world’s leader in open platform, medium format camera systems and sOur products are known for their quality, flexibility and speed enabling pro photographers shooting in a wide range of formats to achieve their creative visions without compromise. Phase One medium format cameras, digital backs and lenses are designed to deliver superior quality image capture and investment value\nSigma cameras are designed to capture the living world just as it is reflected in the human eye and to record the emotions of color in all their intensity. The sole motivation behind all aspects of Sigma cameras is in getting the most perfect end result photo. Sigma Cameras are designed to capture the perfect represen-tation of the photographer’s vision, the perfect outlet for creative expressio\nOur mission is to develop products that offer you extensive creative and technical possibilities. With its firm commitment to developing high-quality, innovative and technologically advanced products that satisfy customer needs, Tamron secures its leading position in the global optical industry.\nOur mission has always been to deliver great product at affordable prices. Over the years we’ve grown into a leader in technology trends, with showrooms and distribution worldwide. Our company has evolved alongside technology – from selling lenses for SLR cameras, to being the #1 supplier of digital cameras and accessories around the world.\nInnovation is the essential key to success of the Carl Zeiss Group. The Zeiss Ikon rangefinder camera and ZM lenses combine the classic design of a M mount system with intuitive operation.Also, SLR lenses by Carl Zeiss offer many creative possibilities for personalized manual composition.\nCopyright 2010-2011 Friendly Photo Zone","domain":"optical_engineering"}
{"url":"https://www.pmt-fl.com/sensor-driven-lighting/sdl-ambient-light-sensors/tsl25723","date":"2021-01-23T23:15:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703538741.56/warc/CC-MAIN-20210123222657-20210124012657-00784.warc.gz","language_score":0.8329956531524658,"token_count":147,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__98492561","lang":"en","text":"The TSL2572 device family provides ambient light sensing (ALS) that approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. Accurate ALS measurements are the result of ams’ patented dual-diode technology and the UV rejection filter incorporated in the package. In addition, the operating range is extended to 60,000 lux in sunlight when the low-gain mode is used.\n|Supply Voltage [V]||2.4 - 3.6|\n|Interface||I2C - 1.8|\n|Programmable||Gain, Integration Time, Interrupt|\n|Temperature Range [°C]||-30 to 70|","domain":"optical_engineering"}
{"url":"https://walkercomponents.co.uk/product/rdx-led-traditional-light-kit-8-standard-plus-fog-and-reverse-includes-connectors-for-land-rover-defender/","date":"2020-10-24T14:54:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107883636.39/warc/CC-MAIN-20201024135444-20201024165444-00602.warc.gz","language_score":0.7740451693534851,"token_count":184,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__210053199","lang":"en","text":"Product Description: RDX LED Traditional Light Kit 8 Standard Plus Fog and Reverse includes connectors For Land Rover Defender.\nSpecification: Traditional looking LED Lamps. Includes 8 Standard Size lights and larger Fog and Reverse. IP 67 rated dual voltage for 12 / 24 volt vehicles. Can be wired to the existing vehicle wiring loom without the need for resistors.\n- 2 Front RDX Standard LED sidelights\n- 4 RDX Standard LED indicator lights\n- 2 RDX Standard LED Stop and Tail lights\n- 1 RDX LUX NAS LED Fog light\n- 1 RDX NAS LED Reverse light\n- 1 4 Pin RDX LED Flasher Relay\n- 2 RDX Standard Plinths\n- 2 x Econseal connectors.\nThese lamps have the latest LED lighting technology bringing your Land Rover into the 21st Century.\nThese will suit the following vehicles:\nLand Rover Defender","domain":"optical_engineering"}
{"url":"https://solware.co.uk/mtc-swat-prismatic-12x50-scope","date":"2021-11-27T03:10:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358078.2/warc/CC-MAIN-20211127013935-20211127043935-00477.warc.gz","language_score":0.9309166073799133,"token_count":366,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__67432542","lang":"en","text":"MTC SWAT Prismatic 12x50 Scope\nSWAT | PRISMATIC 12 x 50\nWith its short eye relief, the SWAT Prismatic ‘sits back’ further than any other scope, leaving plenty of mounting rail to allow headache-free attachment of all kinds of Night Vision fittings. Its multi-faceted SCB2 crosshair can also be illuminated at the push of a button, and comes with brightness control to suit all lighting situations.\nThe field of view from its 50mm front lens is three times more than a conventional scope. Put another way: here we have a 12x magnification scope that has the same field of view as a ‘conventional’ scope dialled into just 4x power.\nJust as amazing is the 12×50’s light-gathering credentials. It sucks in more light than any comparable 12x scope, making it a top choice for shooting in low-light situations.\nSize-wise, the stacked prismatic lenses of the SWAT 12×50 means it measures up at just 156mm – significantly shorter than, say, MTC’s ever-popular Mamba model (at 370mm).\nComplete with MTC’s magnetic flip cover and a cool new mount that features integral tilt adjustment to achieve close to optimum optical zero – before even dialling-in the scope’s turrets – the SWAT Prismatic is a scope that’s totally unlike any other available in the shooting optics world.\nAnd that is the truth of it… SWAT Prismatic – brighter than your average scope.\nYou must be 18 years of age or older to enter into the site.\nYou are not 18+ years old. We're sorry, you can't use the website.","domain":"optical_engineering"}
{"url":"https://www.vision9i.in/baggage-x-ray-machine.html","date":"2024-04-22T12:36:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818293.64/warc/CC-MAIN-20240422113340-20240422143340-00674.warc.gz","language_score":0.8126632571220398,"token_count":220,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__37228360","lang":"en","text":"BAGGAGE X-RAY MACHINE\nBaggage X-Ray Machine\nMinimum Order Quantity: 1 Piece\n|W660mm x H510mm\n|17 inch LED\nZKX6550 X-ray inspection system increases the operator ability to identify potential threats; the device is designed to scan briefcases, carry-on baggage, small cargo parcels.\nZKX6550 uses reliable high quality dual energy X-ray generator. With the superb image algorithm, ZKX6550 could offer clear scanning image, which allows operators to identify potential threat items visually.\nZKX6550 has innovative biometric identify function for operators, improving the security of system and preventing operator from forgetting password.\nWith ergonomic modern design, ZKX6550 could help operators to identify suspicious items fast and accurately.","domain":"optical_engineering"}
{"url":"https://coinstampsupplies.com/product/magnifier-bundle-offer/","date":"2018-10-23T04:50:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516071.83/warc/CC-MAIN-20181023044407-20181023065907-00514.warc.gz","language_score":0.8065669536590576,"token_count":383,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__68285690","lang":"en","text":"A special magnifier bundle put together by your friends at Canadian Coin News and Canadian Stamp News.\nThe bundle consists of three magnifiers in total. They include:\nHand-held 7X magnifier with LED (Sku # 344396):\nHandy pocket magnifier with Perspex aspheric lens, powerful white LED, and 7x magnification at an affordable price – which is just right for many collectors. Lens diameter: 1 3/8″ (35 mm). Includes three batteries (AAA).\nOverall size: 4 ¾x 1 3/8 x 1″ (120 x 42 x 26 mm).\nClip-on Magnifier (Sku # 326886):\nA quality magnifier for reading glasses. Adjustable to fit all frames. Diameter of lens 1 1/4″ (30 mm). 5 x magnification. The flexible link allows for precise adjustment for frame and eye.\nThe popular “5 in 1” Pocket Magnifier (Sku # 339919):\nStainless steel frame with acrylic housing and 2 aspheric lens: rectangular, 1 1/8 x 1 1/2 (30 x 37 mm) with 2.5X, round, ½ (15 mm) diameter with10x magnification. 3 lighting functions: powerful 3-LED flash light (sideways), 1-LED research light (down), simple 395nm long-wave UV light (down). Also includes pull-out mini ball-point pen and leatherette case. 3 LR927 batteries incl. Dimensions: 1 ½ x 3 ½ x ¼ (38 x 91 x 8 mm).\nCombined, these three magnifiers have a total retail value of $32.85, before taxes.\nThis special bundle offer, limited to only nine sets (while quantities last), is available for only $25.62 (20% off).","domain":"optical_engineering"}
{"url":"https://borvacsora.info/astm-d1218-30/","date":"2021-04-20T13:34:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039398307.76/warc/CC-MAIN-20210420122023-20210420152023-00528.warc.gz","language_score":0.8850888609886169,"token_count":1944,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__261456737","lang":"en","text":"D – 99 Standard Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon Liquids, hydrocarbons, refractive dispersion, refractive index. ASTM D(R07) – Designation: D – 02 (Reapproved ) An American National Standard. As well as adding a sample changer or special density cell for high pressures and temperatures, a DMA Generation M density meter from Anton Paar (Austria) .\n|Published (Last):||16 November 2013|\n|PDF File Size:||7.65 Mb|\n|ePub File Size:||8.30 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nD — 02 Reapproved An American National Standard Standard Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon Liquids1 This standard is issued under the xed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.\nA superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. NOTE 1—The test method may be suitable for measuring the refractive indices of liquids above 1.\nVerication of the accuracy of such measurements will depend upon the availability of reliable, certied reference standards that demonstrate the performance of the instrument used under the particular measuring conditions.\nFor convenience in calculations, the value of the difference thus obtained is usually multiplied by 10 It may also be dened as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance. This is the relative index of refraction. If absolute refractive index that is, referred to vacuum is desired, this value should be multiplied by the factor 1.\nThe numerical value of refractive index of liquids varies inversely with both wavelength and temperature. Summary of Test Method 4.\nRefractive Index Measurements According to ASTM D1218\nLiquid color should be limited to No. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.\nCurrent edition approved Nov. Originally approved in Last previous edition approved in as D — Originally published as Lawrey, D. The instrument principle is based on the critical angle concept. Signicance and Use 5. However, this instrument is no longer manufactured. There is a variety of refractometers that have been found to be suitable for this measurement.\nSome instruments offer a wider measuring range but it is important to verify the uniformity of accuracy across the entire measuring range and to ensure suitable calibration materials are available for this verication. Reagents and Materials 7. Vapors may satm ash re. If an external bath is used, the thermostating liquid shall pass the temperature measuring device on leaving, not on entering the prism.\nThe temperature control v1218 external or internal shall have the following control specication: Stability Uniformity Display Resolution 6 0. Warning—2,2,4trimethylpentane, methylcylcohexane, and toluene are all ammable. Their vapor can be harmful. The precision of the test method see For apparatus using nonmercury in glass thermometer, a platinum resistance probe, thermocouple, or equivalent temperature sensors are acceptable. NOTE 3—Measurement of refractive dispersion requires more than one type of light source.\nThe sample shall be free of suspended solids, water, or other materials that may settle onto the prism surface and affect the measured reading. Water can be removed from hydrocarbons by treatment with calcium chloride followed by ltering d12118 centrifuging to remove the desiccant.\nThe possibility wstm changing the aatm of the sample x1218 action of the drying agent, by selective adsorption on the lter, or by fractional evaporation, shall be considered. Warning—Volatile hydrocarbon samples are ammable. Preparation of Apparatus 9. Dust and oil can impair the optical component of the instrument. Thoroughly clean the prism faces with toluene, 2 6.\nFilters can be used to eliminate unwanted lines borderlines. Do not dry the prism faces by rubbing with dry cotton. Turn on the light source and allow the refractometer to equilibrate for 30 min. NOTE 6—The constancy of the prism temperature can be seriously d12218 by variations in ambient conditions such as air drafts or changes in room temperature.\nReasonable precautions should be taken to minimize these factors. Determine the refractive index at the secondary wavelength following Satm 7—When determining refractive dispersion, it is expected that the instrument would astk been calibrated at both wavelengths used. Open the prism assembly.\nApply a drop of 1-bromonaphthalene contact liquid, about 1. Press the reference standard against the surface of the prism face with the polished end towards the light source. If the observed refractive index for the chosen reference material astmm a specied test temperature differs by more than 0. Check that the prism temperature is within 0. Close the prism assembly and lock if necessary.\nTurn on the light source. Allow 3 min temperature equilibration time. Calculation and Report Report the calculated value and the test temperature, for example: Precision and Bias The instrument shall incorporate a solventresistant prism seal. The accuracy and resolution awtm the temperature measuring device shall be 0. Reagents and Materials Preparation of Apparatus Ensure that the instrument has a solvent resistant prism seal.\nThey may require a atm, two-point, or multi-point calibration. Ensure the prism temperature is correct and the instrument has been properly calibrated. Do not introduce an excessive amount because this can slow the thermal equilibration. Lower the sample presser if tted. Record or report, or both, this value as the refractive index of the sample at the test temperature. NOTE 8—From experience using the instrument, the user will be able to judge with a safe margin aatm amount of time needed for a sample to thermally equilibrate on the prism.\nBased on this, it may be possible on some models to set an automatic delay time for readings. This enables a xed measuring time to be written in to the experimental protocol.\nNOTE 9—When successive readings are drifting, the direction of drift will indicate what is happening to the sample. An upward drift means the sample is cooling on the d218 a downward drift means the sample is warming up. This is particularly noticeable when samples are much hotter or cooler than the prism.\nThis can be manually recorded or, if the refractometer is equipped with a computer interface, readings can be sent to a printer or to a computer. D — 02 Rautomatic 5 0. The relative change in refractive index with temperature temperature coefficient is different for each liquid under test. Hydrocarbon liquids have a higher temperature coefficient than water and aqueous solutions.\nFor hydrocarbon liquids, the coefficient will typically be in the range -3 3 to -5 3 Refractive index should, therefore, be measured using light of a single wavelength monochromatic light. Most measurements traditionally have been made at the sodium D line Other light sources include mercury, cadmium, helium, and hydrogen where lters are used with the refractometer to eliminate unwanted emission lines.\nDifferent substances have varying degrees of refractive dispersion sometimes called dispersive power. Some instruments can utilize a white light source, but often these instruments are limited in accuracy because of sstm light source. High accuracy Abbe refractometers require a pure spectral light source such as a sodium arc lamp see 6.\nThe refractive index at this wavelength is denoted as nD.\nThe degree of impurity band width will cause a dispersion of the detected light from the sample. Instrument software can be used to compensate for and thus minimize this error source but it will nevertheless be a factor in determining the limiting accuracy of the instrument. The dispersion error will however differ according to the substance measured. This is why instrument manufacturers may specify the instrument accuracy as typically or better than in order to cover a broad application scope.\nHowever, for practical purposes, because of the proximity of the lines, it is regarded as a single wavelength source and the average value of The optical system in a refractometer is subject to microscopic movement as materials expand and contract with uctuating ambient thermal conditions. This effect leads to calibration drift, which must be periodically corrected to ensure measurement reliability. Solid plates are often preferred for their stability shelf lifebut have the disadvantage of limited accuracy in use because of the errors associated with the placing of the plate on the refractometer prism.\nTypically, a plate may not allow an accuracy better than Test plates are particularly difficult to apply to sapphire prisms of the type typically used in digital electronic refractometers. This is because the micro-roughness of sapphire is greater than that of softer optically atter glasses used in optical Abbe refractometers.\nInvariably, liquid reference standards will be preferred and will be recommended by instrument manufacturers for this reason. Automatic digital refractometers may require a single zerotwo-point, or multi-point calibration.","domain":"optical_engineering"}
{"url":"http://expeyes.in/experiments/light-barrier.html","date":"2019-03-18T15:53:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912201455.20/warc/CC-MAIN-20190318152343-20190318174343-00412.warc.gz","language_score":0.9260669946670532,"token_count":103,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__68327119","lang":"en","text":"A photo-transistor plus LED combination can be used for measuring light transmission and for sensing the timing of mechanical movements. The LED is powered by SQR1. The collector of the photo-transistor is connected to SEN, which is connected to 5 volts through a 5.1k resistor. The voltage at the collector of the photo transistor changes according to the amount of light falling on it. The built-in analog comparator on SEN input is used for timing measurements when the light crosses a certain threshold.","domain":"optical_engineering"}
{"url":"https://bugdetector.mystrikingly.com/","date":"2022-12-07T10:08:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711151.22/warc/CC-MAIN-20221207085208-20221207115208-00016.warc.gz","language_score":0.9436215162277222,"token_count":229,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__111887273","lang":"en","text":"Now more and more people are starting to use special devices to detect hidden cameras and other devices. And today we will talk in more detail about such devices.\nThat is called a bug detector. They are able to identify many devices that can interfere or disturb you.\nHidden Camera Detector is a portable device that you can easily carry anywhere, such as an office, sauna, hotel, dressing room, etc. With this device, you will be sure that no one will follow you. If you use it correctly, it will detect any hidden camera, even a professionally installed one embedded in everyday objects like paintings, pens, etc.\nEvery hidden camera has a lens. The principle of operation of the device is to detect reflections reflected by the lenses of hidden cameras. The hidden camera detector emits a powerful red spectrum of light, and as soon as the emitted flux hits the camera lens, it will be reflected towards the camera detector lens, and you will see a specific flash that is difficult to confuse with anything else.\nNow you know everything about the detectors that will protect you and will not allow you to penetrate into your personal life.","domain":"optical_engineering"}
{"url":"https://www.vivehealth.com/blogs/resources/magnifying-glass-with-light","date":"2018-08-17T15:36:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221212598.67/warc/CC-MAIN-20180817143416-20180817163416-00573.warc.gz","language_score":0.9156990647315979,"token_count":1492,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__110686851","lang":"en","text":"- Health Devices\n- Braces & Supports\n- Bathroom Safety\n- Living Aids\n- Physical Therapy\nIdeal for seniors, hobbyists, professionals, and people with low vision or macular degeneration, a magnifying glass with a light can bring fine print and small visuals to life. From floor or table magnifying lamps to hand held magnifying glasses with a light, these products usually feature a variety of magnification levels. If you are struggling to read the small text on pill bottles or do close-up work such as stitching, any of these best flashlight magnifying glasses will help you stop straining your eyes.\nThis handheld magnifying glass with a light comes with two high-quality acrylic lenses—a 5x lens and a 10x lens. Simply press the two-button system to attach or release them. Plus, it features two integrated bright LED lights for reading in dark conditions, and an ergonomically-designed nonslip handle.\nThis bestselling head magnifier features three multi-coated acrylic lenses: a fixed 1.9x lens, a 1.9x flip lens, and a 4.5x loupe lens. It comes with a removable LED light with a pivoting tilt and angle. Plus, the head strap can be customized to make this device suitable for men, women, and children.\nIdeal for reading books or pursuing hobbies such as stamp collecting, model building, and needlepoint, this desk lamp features a 5x spot lens with two in-built LED lights. The flexible neck lets users direct the beam of light exactly where they need it. This lamp comes with an AC/DC adapter.\nThis flashlight magnifying glass lets users alternate between three different lenses—2x, 3.5x, and 10x for examining very fine details. It features two integrated energy-efficient LED lights, which run on three AAA batteries, and comes with a convenient storage bag and a lens cleaning cloth.\nBilling itself as the widest magnifying lamp on the market, this appliance features an elongated five-diopter lens for a 2.25x magnification. The 60 miniature LED lights embedded around the lens produce a cool white hue without generating heat. Plus, this lamp can be placed on a desk or the floor thanks to a removable metal pole extension.\nThis compact hand held magnifying glass with a light packs a lot of punch. Featuring 3x and 15x magnification areas, it can be used to do stitch work or read fine print. The easy-to-grip handle is comfortable and will not cause muscle fatigue, even after prolonged use. Plus, the three integrated LED lights make reading in low light a breeze.\nDesigned for those with vision problems, this magnifying lamp features a 2.25x lens and an aluminum clamp that can be easily attached to desks or other pieces of furniture. The triple-joint arm swivels 360 degrees to let you aim the light where it is required. Plus, according to the manufacturer, the in-built LED light will last over 20 years.\nIdeal for seniors, children and those with a vision impairment, this stylish hand held magnifying glass with a light has a five-inch-wide frame, and a classic black and silver design. It features an ergonomically-designed handle, a 2x magnifying lens with 6x bifocal, and a bright LED light.\nThis bestselling flashlight magnifying glass features a solid and smooth frame, and a crystal glass lens that does not distort text. It has two magnification levels—3x for people with low vision or macular degeneration and 45x for reading extremely fine print. Plus, the three energy-efficient LED lights, which are located on the handle, are ideal for illuminating fine print.\nBilling itself as the biggest hand held magnifying glass on the market, this 5.5-inch scratch-resistant reading device features a distortion-free lens with a 2x, 4x, and 10x magnification levels. The three in-built LED lights are energy-efficient, and can be switched on and off at a push of a button.\nWhile magnifying glasses with a light are ideal for illuminating small text and intricate images, here are a number of other products for those with weak eyesight.\nKeeping on top of your vital signs is important to monitoring your overall health. From digital bathroom scales to body fat scales, the best measuring scales not only provide accurate readings, but are sturdy and easy to operate. If you suffer from low vision, select a scale with an easy-to-read backlit LCD display.\nIdeal for late night strolls, a cane with an in-built light will help you navigate around any potential obstacles. Usually positioned on the handle, most cane lights can be adjusted up and down, and from side to side. Choose a quality cane if you tend to travel a lot and require minimal support, or a cane with a wide base and four tips if you are more unsteady on your feet.\nWhether you are looking for an oral thermometer, a forehead thermometer, or an ear thermometer, a large display is essential if you suffer from poor vision. Luckily, many thermometers on the market today feature easy-to-read backlit displays that not only show temperature in both Fahrenheit and Celsius, but also feature a fever and a low battery alert.\nA popular choice for the visually impaired, magnifying glasses with an in-built light are ideal for reading in dark areas. Most magnifying glasses feature energy-efficient LED lights, which run on standard batteries. Select a budget-friendly hand held magnifying glass with a light, or opt for a floor or table magnifying lamp. Many flashlight magnifying glasses also feature different levels of magnification. Check out our list of the best magnifying glasses with a light, and get on with the activities you love the most, no matter the lighting conditions.\nDo you suffer from fatigue, lethargy, daytime sleepiness, or decreased vision? Then you might need energy supplements for seniors to boost your mood and energy levels. These supplements are rich in essential vitamins and minerals, that support the immune system, increase mental clarity, promote healthy joints, enhance vision, and enable you to carry out your daily activities with ease.\nWhile gyms can be a great place to exercise and build muscle, rainy days and general lethargy can quickly put an end to a gym trip. If you want to bring a little bit of the gym into your home, there’s a wide selection of hand weights for home use you can choose from.\nDigestive enzymes supplements include proteins that support the breakdown and absorption of nutrients in the body. Your body produces an amount of these enzymes itself, and the best enzyme tablets promote healthy digestion naturally. These chemicals are linked to a range of health benefits, such as reducing bloating and gas, improving conditions like constipation and helping the body absorb the maximum nutrient value of different foods.\nAn underactive thyroid gland can cause fatigue, slow metabolism, and weight gain. While a lifestyle change is required, using supplements for hypothyroidism is recommended to stimulate the production of the thyroid hormone. These supplements are formulated with essential vitamins, minerals, herbs, and amino acids to enhance metabolism as well as increase energy levels.","domain":"optical_engineering"}
{"url":"http://www.vialite.com/news.php?newsId=78","date":"2013-05-23T11:35:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703298047/warc/CC-MAIN-20130516112138-00058-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.7674142122268677,"token_count":399,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__72662559","lang":"en","text":"(USA) +1 (855) 4-VIALITE\n(UK) +44 (0)1793 784389\n2005 - OEM module format now available for all PPM fiber optic links\nNew to PPM's extensive RF-over-fiber ViaLite range are the OEM Transmitter and Receiver modules. These small, high-performance modules have been designed for manufacturers who wish to add a fiber optic interface to their existing RF product. They have generated much interest from suppliers of satellite up/down-converters, mobile radio equipment, cellular and many others.\n.The OEM modules are available for a wide range of operating frequencies from <2kHz to >3GHz including: L-band; 70/140MHz and GPS. PPM's RF over fiber products offer a very wide dynamic range, and allow the transmission of RF signals of any modulation format on optical fibre over distances from a few metres to >50km with very low loss and signal degradation. All of PPM's ViaLite modules require little or no previous knowledge of optical fibre for product selection, installation and use.\nTel: +44 (0)1793 784389\n|Satellite L Band||Application notes||Dual redundancy||ViaLiteHD|\n|Markets||Satellite IF||Case studies||Monitor and control||RF over fibre technology|\n|Satcom||UHF/VHF||User manuals||WDM/CWDM multiplexing||Corporate|\n|Timing and synchronisation||Wideband||FAQs||Digital data||Exhibitions|\n|Military and defence||Timing/reference||Datasheets||Careers|\n|Mines and tunnels||GPS||Service||Locations||Electro-optical conversion|\n|Government and public safety||Antennas|\n|Custom products||Racks and enclosures||News||Distributors||Contact Us|","domain":"optical_engineering"}
{"url":"https://www.controlinstruments.com/technologies/infrared-analyzers","date":"2024-03-04T15:46:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00488.warc.gz","language_score":0.9099565744400024,"token_count":253,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__45315106","lang":"en","text":"A typical non-dispersive infrared (NDIR) detector passes a source of infrared energy through the sample and measures the energy received by one of two detectors. The active detector responds to wavelengths in the same band as the sample gas, while the other detector measures a reference to compensate for changes within the instrument. When specific combustible gases are present, they absorb some of the infrared energy and produce a signal in the active detector relative to the reference detector. Energy absorbed by the combustible gas for a given wavelength varies exponentially with the particular gas's absorptivity, the concentration, and the path length. This means that infrared detectors must be specifically calibrated for a particular gas, and can have very high variations in response factors and linearity for other gases. Infrared detectors are usually limited to detecting a single combustible gas.\nControl Instruments infrared detector uses an integrated sampling system that extracts a sample from the process using a built-in aspirator that develops suction from compressed air. Infrared energy is passed through the sample, and the amount of infrared energy that is absorbed determines the concentration of solvent vapors. Multiple infrared detectors at select wavelengths help convert concentration data into % LFL flammability readings with greater accuracy for a wider range of solvent types.","domain":"optical_engineering"}
{"url":"http://awexgarge.gq/7813/UV%20CAP%20HOOD%20CPL%20FLD%20ND%20Graduated%20Lens%20FilterType%20UV%20Size%2082mm%20in%20Camera%20Filters%20from%20Consumer%20Electronics","date":"2020-02-24T18:26:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145966.48/warc/CC-MAIN-20200224163216-20200224193216-00095.warc.gz","language_score":0.8234573006629944,"token_count":231,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__125476160","lang":"en","text":"UV CAP HOOD CPL FLD ND Graduated Lens FilterType UV Size 82mm in Camera Filters from Consumer Electronics\nQuantity: 1 UV filters reduce haze and improve contrast by minimizing the amount of ultraviolet (UV) light entering the camera lens. Especially useful in areas of high altitude or snowy regions. Serves as a great and inexpensive lens protector. Use consistently to protect your delicate lens from dirt, scratches, and other forms of damage. A must have accessory for every photographer's kit! Double Threaded Size:82mm Material: optical glass + metal Package Included: 1 x UV Filter 1 x Case Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.\nUV CAP HOOD CPL FLD ND Graduated LE Ns Filter Flower ... - Vova\nUV CAP HOOD CPL FLD ND Graduated LE Ns Filter Flower Hood 67mm. US$\n2.64. Color: Black. Black. Size: 67mm. 67mm. ADD TO CART OUT OF STOCK.","domain":"optical_engineering"}
{"url":"https://londonphotographicassociation.blogspot.com/2009/02/fujifilm-launch-medium-format-film.html","date":"2021-09-16T17:48:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780053717.37/warc/CC-MAIN-20210916174455-20210916204455-00086.warc.gz","language_score":0.9440498352050781,"token_count":201,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__159030757","lang":"en","text":"Wednesday, 4 February 2009\nFujifilm Launch Medium Format Film Camera\nIt cheered me up to see that Fujifilm are launching a new medium format film camera this spring. We are not sure when it will sell in the UK as yet.\nFirst shown as a prototype at the Photokina trade show in Cologne last year, the GF670 Professional will now be released in Japan in mid-March as a portable folding bellows camera, jointly developed by Fujifilm and Cosina. The production may be limited to just 5000 units.\nIts most unusual feature is a mechanism for switching between two different film formats - 6x7cm and 6x6cm. It is also fitted with an 80mm f/3.5 fixed focal length lens, which is composed of six glass elements in four groups. The GF670 has an automatic lens shutter, and an SPD sensor with both automatic and manual autofocus. The ISO sensitivity ranges from 25 to 3200.","domain":"optical_engineering"}
{"url":"http://deptoinformatica.fi.uner.edu.ar/redmine/projects/psf-fit-comparative-study","date":"2019-12-11T08:35:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540530452.95/warc/CC-MAIN-20191211074417-20191211102417-00254.warc.gz","language_score":0.8953376412391663,"token_count":305,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__72041588","lang":"en","text":"The precise knowledge of the point spread function is central for any imaging system characterization. In fluorescence microscopy, point spread function (PSF) determination has become a common and obligatory task for each new experimental device, mainly due to its strong dependence on acquisition conditions. During the last decade, algorithms have been developed for the precise calculation of the PSF, which fit model parameters that describe image formation on the microscope to experimental data. In order to contribute to this subject, a comparative study of three parameter estimation methods is reported, namely: I-divergence minimization (MIDIV), maximum likelihood (ML) and non-linear least square (LSQR). They were applied to the estimation of the point source position on the optical axis, using a physical model. Methods’ performance was evaluated under different conditions and noise levels using synthetic images and considering success percentage, iteration number, computation time, accuracy and precision. The main results showed that the axial position estimation requires a high SNR to achieve an acceptable success level and higher still to be close to the estimation error lower bound. ML achieved a higher success percentage at lower SNR compared to MIDIV and LSQR with an intrinsic noise source. Only the ML and MIDIV methods achieved the error lower bound, but only with data belonging to the optical axis and high SNR. Extrinsic noise sources worsened the success percentage, but no difference was found between noise sources for the same method for all methods studied.\n- Project type: Investigation","domain":"optical_engineering"}
{"url":"https://www.alliancetesteq.com/equipment/agilent-hp-86106b","date":"2024-04-16T17:09:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00854.warc.gz","language_score":0.8996837735176086,"token_count":189,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__30387009","lang":"en","text":"This unit is an integrated, calibrated optical channel with a built in OC 192/STM 64 filter that can be switched in for a standards base transmitter compliance test.\nWhen the filter is switched out, the 86106B offers 28GHz of unfiltered optical bandwidth for accurate characterization of high speed lasers.\nThe frequency response variation of the unfiltered optical channel also has been improved to minimize the distortion on measured optical pulses.\nA 40GHz electrical channel is available for wide bandwidth measurements on electrical waveforms.\nReference receiver capability\nCharacteristic RMS Noise\nWavelength range: 1000 to 1600nm\nCharacteristic RMS noise: 10uW to 18uW\nMaximum average input power: 2mW\n© 2024 Alliance Test Equipment, All Rights Reserved.\nAlliance Test is not affiliated with Agilent Technologies or any other OEM manufacturer and all trademarks are owned by their respective manufacturers","domain":"optical_engineering"}
{"url":"https://www.customguns.co.uk/product-page/easyhit-fibre-optic-shotgun-bead","date":"2022-05-25T17:14:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662588661.65/warc/CC-MAIN-20220525151311-20220525181311-00492.warc.gz","language_score":0.8471167087554932,"token_count":208,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__156483158","lang":"en","text":"EASYHIT Fibre Optic Shotgun Bead\nThe EASYHIT Fibre Optic Shotgun Sight.\nThis is the long (131mm) model. The most effective for gathering maximum light.\nAvailable in red or green, 3mm diameter bead.\n- Easyhit is a luminous bead suitable for all lighting conditions.\n- Manufactured using the best optic fibres\n- Gains in speed and accuracy\n- Improve your shot due to an improved simultaneous view of the target and the luminous point\n- Allows aiming with both eyes open: the luminous point indicates the firing axis\n- Perfect for beginners or experienced shooters, allowing constant concentration while shooting\n- Helps to correct problems with eye dominance\n- Significantly better in weak light, dark background or a back ground with little contrast\n- Simple attachment using an adhesive strip\n- No adjustment, your aiming height remains unchanged\n- Full instructions included\n- Your original bead can remain in place, the Easyhit will fit behind your original bead","domain":"optical_engineering"}
{"url":"http://ajaxwing.com/","date":"2020-10-24T03:04:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107881640.29/warc/CC-MAIN-20201024022853-20201024052853-00704.warc.gz","language_score":0.9718855619430542,"token_count":394,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__85493048","lang":"en","text":"The market for luminaries is very complicated because there are many manufacturers and suppliers with different technologies. Acquiring a luminary is not difficult but when we decide to do it we have to look for the best option in terms of price, quality, performance, durability, and warranty.\nCurrently, we can choose the luminary with the technology that we want although the LED (light emitting diode) technology is preferred since it is developed up to this moment.\nLED lamps with their high-quality electronic components and their designs in keeping with modernity, have a superior performance, their efficiency is higher compared to the older technologies, and their energy consumption is much lower. They can also replace traditional lamps. Tube Light with ultra bright LED chips serves as direct replacement of fluorescent tubes.\nLED technology is today a state-of-the-art technology, so it is intended to replace traditional lamps (incandescent or fluorescent) with LED lamps. This replacement is due to the increased power consumption of traditional lamps, which causes LEDs to be preferred as their power consumption is half that of traditional lamps.\nThe LED technology is forming and will form a fundamental part of the lighting in our homes and buildings, since with the development of the technology the automation of the buildings is inevitable. It should be mentioned that there is a new development in the field of lighting such as luminaries produced from carbon nanotubes.\nIn addition, LED and OLED technologies are used in televisions so that the images are clearer and its design has less volume; in traffic lights, avoiding them more power consumption and making them more visible and durable than traditional traffic lights.\nLEDs have also been used in applications in extraterrestrial space, as well as for artistic designs and facades of skyscrapers. The reflection of the growth of the use of this technology is in the manufacturing capacity; the creation of new jobs. This demonstrates that LED technology can lead the market for solid state lighting.","domain":"optical_engineering"}
{"url":"https://www.eyescontactlens.com/eyescontactlens-magic-collection-yearly-natural-contact-lenses-product/","date":"2022-10-02T19:58:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337339.70/warc/CC-MAIN-20221002181356-20221002211356-00036.warc.gz","language_score":0.7558731436729431,"token_count":521,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__18952564","lang":"en","text":"|Place of Origin:||Guangdong, China||Brand Name:||SEEYEYE|\n|Model Number:||Magic||Lenses name:||Magic blue、Magic gray、Magic Hazel、Magic chestnut、Magic moss、Magic gem、Magic sugar|\n|Using Cycle Periods:||Yearly /Monthly||Lenses Hardness:||Soft|\n|Center Thickness:||0.08mm||Base curve:||8.6 mm|\n|Power:||-0.00||Selling Units:||Single item|\n|Made in:||Guangdong, China||Tone:||2 tones|\n|Packaging Details:||PP||Expiry date:||5 years|\n|Single package size:||7*8*1.2cm||Single gross weight:||0.019 kg|\n1. CE and FDA certified materials\nAll contact lenses are CE marked and approved by the FDA, complying with international quality medical standards.\n2. \"Sandwich\" lens technology\nThe \"sandwich\" lens technology puts the colored layer in the middle of the two layers of contact lenses to prevent the color from polluting the eyeballs and safely protect the eyes.\n3. High-quality lens material\nThe lens is made of HEMA+NVP material, which minimizes the adhesion of ocular proteins to the lens, thereby reducing the sensation of foreign bodies in the eye.\n1.Do your lenses come with prescription?\nYes! All of them are available with prescription. If you have normal eyesight or you simply need a decoration. choose -0.00.\nConsult your eye doctor to confirm the diopter counts before ordering.\n2.Why is the actual color different from that on website?\nDue to variable factors. such as light. camera lens filters. surrounding colors. original eye color/ eye shape/ makeup. etc. the color of the lenses may vary and look different. Such cases should be acceptable.\nPlease contact us within 24 hours after you have received your lenses if you have any doubt about your lenses. Please don’t forget to enclose the lens picture so that we can check for you.","domain":"optical_engineering"}
{"url":"https://www.corpuschristibusinessphonesystems.com/fiber-optic-cabling/","date":"2024-02-26T23:30:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474669.36/warc/CC-MAIN-20240226225941-20240227015941-00003.warc.gz","language_score":0.8787691593170166,"token_count":645,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__82573667","lang":"en","text":"Fiber Optic Cabling Business Phone Systems\nCorpus Christi Business Phone Systems: Transformative Fiber-Optic Cabling Solutions\nIn the landscape of data transfer, the adoption of fiber-optic cabling emerges as a pivotal advancement, revolutionizing communication with unparalleled speed, expansive bandwidth, and remarkable long-distance transmission capabilities. Businesses are swiftly integrating this transformative technology to meet the escalating demand for swift and reliable communication, gaining a competitive advantage in the process. The high-speed transmission and broad bandwidth of fiber-optic cabling effortlessly support bandwidth-intensive applications, including video conferencing and cloud computing. Its versatility extends across various sectors, such as healthcare, telecommunications, and networking. Whether establishing a new communication network or upgrading existing infrastructure, opting for fiber-optic cabling is a strategic decision, ensuring lasting advantages for your business. With our unwavering commitment to cutting-edge solutions, Corpus Christi Business Phone Systems prioritizes the deployment of fiber-optic technology to keep your business at the forefront of speed, reliability, and efficiency in today’s fast-paced world.\nSingle-Mode Fiber Optic Cabling (100BaseBX Standard):\nRepresenting a high-performance solution for data transmission, single-mode fiber optic cabling adheres to the 100BaseBX standard. This standard is characterized by a single strand of optical fiber, facilitating the transmission of a single mode of light. This focused approach minimizes signal dispersion, enabling longer-distance communication with enhanced speed and reliability. The 100BaseBX standard, denoting a Fast Ethernet transmission rate of 100 Mbps, makes single-mode fiber optic cabling ideal for scenarios requiring high bandwidth over extended distances, such as long-distance telecommunications, data centers, and enterprise networks. Its efficiency in transmitting data over extended ranges positions it as the preferred choice for businesses seeking robust and dependable connectivity.\nTwo industry standards for Fiber Optic Cabling\nMultimode Fiber Optic Cabling (100BaseSX Standard):\nCompliant with the 100BaseSX standard, multimode fiber optic cabling is designed to meet the demands of high-speed data transmission within relatively shorter distances. Unlike single-mode fiber, multimode fiber accommodates multiple modes of light, allowing for the simultaneous transmission of signals along different paths. The 100BaseSX standard, signifying a Fast Ethernet transmission rate of 100 Mbps, makes multimode fiber optic cabling well-suited for applications where high bandwidth is required within a confined space. This includes local area networks (LANs), campus networks, and shorter-distance connections within buildings. Its cost-effectiveness and versatility in supporting various communication needs make multimode fiber optic cabling a practical choice for businesses seeking efficient and economical connectivity solutions.\nIn choosing Corpus Christi Business Phone Systems as your provider, you opt for a partner committed to delivering cutting-edge fiber-optic cabling solutions, ensuring your business remains ahead in terms of speed, reliability, and overall efficiency.\nLet's Discuss Now!\nGet the best advice and answers to questions you need answers to about our VOIP services and technology. Request quotations on the go!","domain":"optical_engineering"}
{"url":"https://www.aircraftlamp.com/hpsv-lamps-.html","date":"2020-01-21T11:11:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250603761.28/warc/CC-MAIN-20200121103642-20200121132642-00252.warc.gz","language_score":0.9703755974769592,"token_count":112,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__60716634","lang":"en","text":"Widespread assortment of HPSV Lamps are being provided by us in the international market. They produce light at a distinctive wavelength of 589 nm approximately by utilizing sodium in an excited state. These lamps are installed in industries as well as commercial places such as runways, airports, parks and many other places. They can be availed in different specification to cope with the needs of users. The High Pressure Sodium vapor lamps are mainly used for indoor lighting and give yellow light. They produce broad spectrum of light that help in providing a proper view at night.","domain":"optical_engineering"}
{"url":"https://www.gapgun.nl/en/news/t15-sensor-now-available/","date":"2023-09-29T20:06:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510528.86/warc/CC-MAIN-20230929190403-20230929220403-00569.warc.gz","language_score":0.9354079365730286,"token_count":154,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__214619101","lang":"en","text":"The T15 sensor for the GapGun Pro2 is now available. This is a super high resolution sensor that is designed for feature sizes between 0.1 and 5mm.Because of its high resolution over a relatively shorter laser line compared to the T60 sensor, the new T15 sensor is especially capable of measuring scratches, defects, fasteners, chamfers, profiles, turbine parts, very small gap & flush and small radii.\nThe T15 sensor is available as V and M series. The violet laser is capable of measuring on a wide variety of materials, just like the T60 sensor. The M series sensor has a specialised filter for improved performance while measuring bright machined metal, turbine components, bright chrome and other highly reflective surfaces.","domain":"optical_engineering"}
{"url":"https://sandmarc.com/collections/iphone-fisheye-lens/products/fisheye-lens-edition-iphone-xr","date":"2019-07-21T19:22:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527196.68/warc/CC-MAIN-20190721185027-20190721211027-00081.warc.gz","language_score":0.921068549156189,"token_count":160,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__175910023","lang":"en","text":"The Fisheye lens is a 10MM multi-coated lens that gives you 5x more field of view. Ideal for capturing mega-landscapes, closed interior spaces and more. Fisheye Lens Edition comes with the world's thinnest lens case mount along with a clip mount if you wish to use your own case or have no case at all.\nWHAT'S IN THE BOX?\n- Fisheye Lens - iPhone XR Lens Case - Clip-on Mount - Lens Cap + Pouch\nQuite a large part of the outer parts of the photos are not sharp. This is not as good optically as your telephoto lens, which I also have. Otherwise it good. A bayonet might be easier to mount than a screw fitting.","domain":"optical_engineering"}
{"url":"http://seniorprojects.basisschools.org/student-profile.php?id=281","date":"2018-08-21T23:27:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221219197.89/warc/CC-MAIN-20180821230258-20180822010258-00444.warc.gz","language_score":0.9531260132789612,"token_count":186,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__187889270","lang":"en","text":"Machine vision technology is becoming a requisite for many manufacturers because it can be used to improve quality while also providing automation. Vision systems are approximately defined as computers equipped with the sensors and facilities needed to first identify, then examine, then communicate vital information with high accuracy and precision. Errors in the manufacturing process are immediately detected, allowing necessary modifications to be done quickly and efficiently. This means that a vision system identifies, examines, and communicates critical information all at once, and provides for consistent quality in manufacturing products. As such, they are widely prevalent in many fields, including the automotive, semiconductor and electronics industries. My project will consider them mainly in their use in plastic fabrication and injection molding, specifically with respect to the inspection of battery seals at MicroTech Southwest. I will focus on the utility, efficacy, and efficiency of this technology in manufacturing fields, as well as the comparative advantage of machine vision technology over other methods or technologies.","domain":"optical_engineering"}
{"url":"https://www.qmt.ch/en/61/wheeltest-vision.html","date":"2020-09-20T10:23:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400197946.27/warc/CC-MAIN-20200920094130-20200920124130-00566.warc.gz","language_score":0.8214012980461121,"token_count":627,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__132522305","lang":"en","text":"The technologies of QMTWheeltest-Vision\nThe optical assembly is digital, it allows the acquisition of the image flow with a high resolution and a high speed. The lens is telecentric to ensure optimum optical accuracy.\nThis optical technology allows the removal of optical defects from\nmagnification, errors of perspective and distortion.\n1.3 MPixels camera (1'300 x 1'000 pixels) at 30 frames / second\nThis light only allows you to view and measure the outline of the room.\nRotation of the workpiece for dynamic measurement. With the 5 positions, all the components can be controlled: mobile, boards, gables, ...\nThe applications of QMTWheeltest-Vision\nThe QMTWheeltest-Vision with Wheeltest 1, 3 or 5 positions allows the component to rotate with a constant speed. The optical system can thus make the dynamic measurement to calculate the axial and radial beats as well as possible splits. The Wheeltest 5 offers a clearance at the ends of the pivots in order to be able to measure on these areas.\nThe QMTWheeltest-Vision with the Wheeltest 2 or 4 positions allows the rotation of the board with a constant speed. The optical system can thus make the dynamic measurement to calculate the axial and radial beats.\nThe software allows the measurement of toleranced components in GPS.\nThe software has been completely developed by Qualimatest. It has an intuitive user interface and measures all features automatically.\nFit for you program (F4Y)\nQualimatest products can be customized from both an equipment and software point of view. The first level of software customization is the addition of additional functions ( full list of functions ) or the development of a custom function. It is also possible to customize the equipment for example by changing the field of vision or by adding an incident light.\nOn the basis of Qualimatest products, it is proposed the realization of product labeled on behalf of our customers who can be private or marketed by themselves\n|Fields of view [mm]||9.1 x 6.8||According to specifications|\n|Precision [μm]||2||According to specifications|\n|Time for a measurement||<5 seconds (single pieces)||According to specifications|\n|Binocular||When setting up the component||According to specifications|\n|Lighting||Diascopic and episcopic (setting up the component)||According to specifications|\n|Measurement software||QMTWheeltest-Vision||According to specifications|\n|Focus (z axis)||manual||According to specifications|\n|Component training||VOH Wheeltest 1, 2, 3, 4 and 5 training systems (optional)||According to specifications|\n|data processing||External PC in Windows 10||According to specifications|\n| Dimensions (H x W x D) [mm] |\n|420 x 330 x 335||According to specifications|\nAutomated machines for 100% quality control","domain":"optical_engineering"}
{"url":"http://pmc-technology.co.th/products/item/zeiss/ccd-camera","date":"2024-04-18T03:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817187.10/warc/CC-MAIN-20240418030928-20240418060928-00655.warc.gz","language_score":0.8663029074668884,"token_count":1248,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__26614863","lang":"en","text":"Axiocam Family Camera Technology from ZEISS In contrast to digital cameras for photography or industrial inspection, many aspects of the microscope cameras are optimized to meet specific requirements of applications in science, research and documentation.\nAs each application has very specific requirements, there is a wide range of different digital camera models to choose from. Different pixel sizes, for example, regulate camera sensitivity and spatial resolution. Lower pixel count enables higher frame rates and larger sensors offer better coverage of the field of view.\nFor maximum image quality, some Axiocam cameras feature low-noise electronic designs with cooled image sensors. Our color cameras excel through the best color rendition with a very high range of resolvable intensity levels. Monochrome cameras are the best choice for imaging of fluorescent samples at low light intensities with an extended sensitivity spectrum.\nFor easy documentation, some digital cameras can record images either completely without a computer, or through a connected PC, laptop or iPad running the ZEISS Labscope software. All our microscope cameras are fully supported in our ZEN software environment, offering fast live image display and easy-to-use user interface.\n|Small, No-Frills Microscope Camera With its compact design, it makes quick and efficient work of your daily documentation needs. Experience a high data transfer rate with the USB 3.0 port for processing high-resolution 5-megapixel color images. Offering an exposure time range of 100 μs to 2 s and a live frame rate of up to 33 images per second, the camera allows you to be well prepared to cover multiple tasks. Document your results quickly and conveniently. With its attractive price-performance ratio, you can also expand the capability of your fluorescence imaging system with color imaging. Axiocam 105 color is ideal as a secondary camera on fluorescence microscopes that are traditionally equipped with monochrome cameras. The camera’s small form factor also lends itself well to environments with limited space.\n|Axiocam 202 mono\n|For Routine Fluorescence Documentation With smart microscopy, digital documentation has never been easier. Axiocam 202 mono is your smart 2 megapixel microscope camera for digital documentation of fluorescent samples.\n|Axiocam 208 Color\n|For Smart Digital Documentation With smart microscopy, digital documentation of your samples has never been easier. Axiocam 208 color is your 8 Megapixel color microscope camera for Smart Microscopy. This CMOS camera is suitable for education, fast digital documentation and all your routine applications.\n|Axiocam 305 mono/color\n|ZEISS Axiocam 305 Your Fast 5 Megapixel Microscope Camera for Routine Fluorescence Applications Enjoy High Resolution Imaging at Fast Speeds Axiocam 305 is a 5 megapixel CMOS microscope camera. You acquire images with various high contrasts and intensities thanks to its high dynamic range. The dark homogenous background helps you see even the finest structural details. And it's a really fast camera, acquiring up to 36 frames per second at full resolution.\n|Axiocam 503 mono/color\n|ZEISS Axiocam 503 color Image Large Sample Areas - Fast, in True Color, and High-Resolution Your 3 Megapixel Microscope Camera For Fast Image Acquisition in Research Labs This fast 2.8 megapixel scientific grade color camera allows high resolution live images and time-lapse recordings at video speed. Axiocam 503 color brings the convenience of fast color HDTV cameras to the digital domain, including all the advantages of extended parameter control and the image quality you expect from scientific camera products.\n|Axiocam 506 mono/color\n|ZEISS Axiocam 506 color 6 Megapixel Microscope Camera for Fast Imaging in True Color High-Resolution Images of Large Sample Areas This high quality 6 megapixel color camera offers you an amazingly fast live image and acquisition speed despite its large pixel count and the very large 16 mm diagonal field of view. This makes it the camera of choice whenever large sample areas have to be screened and recorded by taking many image tiles repeatedly in a minimum amount of time due to reduced number of tile positions.\n|Axiocam 512 mono/color\n|ZEISS Axiocam 512 color Acquire Large Object Fields with Low Magnification and High Aperture Objectives without Stitching Your 12 Megapixel Microscope Camera Fast, in True Color, and High Resolution This 12 megapixel scientific grade color camera has a 1” (16 mm diagonal) CCD sensor. Given its large sensor size combined with small pixel sizes, you are able to acquire large object fields with low magnification and high aperture objectives without stitching. You can zoom into the digital image and still see the finest details of your sample. The USB 3.0 interface delivers an excellent live image at high acquisition speeds.\n|Axiocam 705 mono/color\n|ZEISS Axiocam 705 color Your Fast 5 Megapixel Microscope Camera True Color Imaging in High Resolution Axiocam 705 color is your flexible 5 megapixel color camera for demanding microscopy applications. Its sensor strikes the perfect balance of speed and resolution. Delivering more than 60 frames per second at full 5 megapixel resolution, this microscope camera will capture even the most dynamic processes without compromising the image resolution. Subsampling or sub-region readout accelerates your acquisition speed to hundreds of frames per second.\n|Axiocam 712 mono/color\n|ZEISS Axiocam 712 color Your All-round 12 Megapixel Microscope Camera True Color Acquisition of Large Specimen Areas in High Resolution Your Axiocam 712 color combines a large image sensor, small pixel size, precise color rendition and fast imaging speed in one versatile and flexible color microscope camera. You profit from a 12 megapixel color CMOS sensor which delivers more than 20 frames per second in a large field of view. You can now acquire large specimen regions quickly and with uncompromised image quality.","domain":"optical_engineering"}
{"url":"https://panmees.com/products/day-night-car-protect-visor","date":"2021-09-24T16:23:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057558.23/warc/CC-MAIN-20210924140738-20210924170738-00692.warc.gz","language_score":0.8369408845901489,"token_count":190,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__195518605","lang":"en","text":"Bright lights and glare can cause discomfort, distraction, and vision fatigue.\nYou Need This !\nCar Visor Glare Protector\nCar Visor Glare Protector provide clear glare filter catches the messy light from all sides and filters them out reflecting through the lens allowing you to clearly see the road ahead.\nCar Visor Glare Protector is designed with multi protection layers - scratch resistant, UV400, corrosion resistant, and PC lens to protect you while also providing you with more comfortable vision.\nCar Visor Glare Protector offering 24 hour protection the day-night protect visor filters headlights and bright street lights during the night, while also effectively blocking UV rays and filtering glare and sunlight during the day.\n- Weight( Approx.) :305g\n- Material: PC, PMMA\n- Color: Yellow, Transparent gray\n- Use: Daytime and Night\n- Size:12.5\" x 4.7\"","domain":"optical_engineering"}
{"url":"https://ozmagazine.com/new-camera-system-to-be-used-on-stranger-things/","date":"2024-04-20T22:58:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00813.warc.gz","language_score":0.9306336641311646,"token_count":262,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__36480858","lang":"en","text":"The new Ranger camera system is being used to film Stranger Things\nRed Digital Cinema has released their new Ranger camera system, now being used on the locally filmed Netflix show Stranger Things. The show may look like it is in the 1980’s, but they are using the newest and best technology available on the market. Available now to authorized rental houses, the new camera system has excited camera crews throughout the industry.\nThe RCS is a high end all in one camera that is well suited for studio configurations. It boasts great temperature management, an ability to handle heavyy duty power sources and more. The RCS “includes the benefits of Red’s cinematic full frame 8K sensor, MONSTRO, in an all-in-one camera system that includes three SDI outputs (two mirrored and one independent) allowing two different looks to be output simultaneously; wide-input voltage (11.5V to 32V); 24V and 12V power outs (two of each); one 12V P-Tap port; integrated 5-pin XLR stereo audio input (Line/Mic/+48V Selectable); as well as genlock, timecode, USB and control.”\nTo learn more about the new camera system filming this fan favorite show, please click here.","domain":"optical_engineering"}
{"url":"https://www.reedwardplasticsnw.com/laser-cutting/","date":"2022-12-03T13:39:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710931.81/warc/CC-MAIN-20221203111902-20221203141902-00684.warc.gz","language_score":0.8998531103134155,"token_count":197,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__261036321","lang":"en","text":"LASER CUTTING SERVICE\nUsing our laser machine we are able to shape all types of plastic and other materials with super fine, precision cutting. From single items to larger productions, we are able to help.\nOculus 1525 Flatbed Laser\nThe Oculus 1525 Flatbed laser is our medium flatbed laser machine and is ideal for those looking to run larger processes. With a 1500 x 2500mm bed, this highly adaptable CO2 laser machine makes light work of cutting large sheets of material, such as Acrylic, MDF, plywood and soft wood, with speed. From sign-makers, to exhibition stand builders, to packaging manufacturers, the list of users who could benefit from the high precision Oculus 1525 Flatbed laser is endless.\nEvents & Exhibition Stands\n& Many More..","domain":"optical_engineering"}
{"url":"https://www.napieruk.com/collections/hearing-protection-and-shooting-glasses/products/sr-ricochet-shooting-glasses","date":"2023-04-01T10:52:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949958.54/warc/CC-MAIN-20230401094611-20230401124611-00661.warc.gz","language_score":0.8737971782684326,"token_count":347,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__241425691","lang":"en","text":"Best Shooting Glasses UK\nSR shooting glasses are the latest in competitive shooting sports protection from Napier UK. Designed by shooters, the SR allows for a full 180 field of view maximising performance and comfort. Complete with 5 interchangeable lens to suit all lighting conditions. The new Napier Ricochet lens is optically correct and made from the highest quality polycarbonate to offer unrivalled protection.\nShooting Glasses UK\nRicochet lens colour guide: What Colour Shooting glasses for sporting clays?\nGrey: Good for the highest light level conditions, this lens reduces eye fatigue, provides accurate colour perception, and minimizes glare.\nVermillion: Ideal for low lighting and enhancing orange clays. This lens improves visual depth, reduces eye strain, enhances visibility, and offers the most significant amount of contrast.\nSodium: Ideal for fog, haze, and extreme weather conditions, this lens filters out blue light.\nBronze: Good for general use and everyday conditions, this lens enhances contrast and contains a red element to improve depth perception.\nLilac: Good for low light levels and impact protection without colour change.\nRemoving & changing lens.\nHow to keep Shooting Glasses from fogging up?\nGlasses can sometimes fog up because of condensation from your breath or sweat; there's not much you can do to prevent it, particularly if you are wearing a mask. Ultra Soft micro filament gun cleaning cloth is an extra soft non-scratch fibre ideal for cleaning barrels, action, stocks, and optics. Keep one of these tucked in your pocket so if your glasses do fog up, you have a quick, safe and convenient way to restore them in the field.","domain":"optical_engineering"}
{"url":"https://eric-diehl.com/an-iphone-that-may-refuse-to-record-illegal-content/","date":"2021-09-19T05:41:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780056711.62/warc/CC-MAIN-20210919035453-20210919065453-00232.warc.gz","language_score":0.9220678210258484,"token_count":728,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__221027556","lang":"en","text":"Apple filed in 2009 an interesting patent called “Systems and methods for receiving infrared data with a camera designed to detect images based on visible light.” In a nutshell, the camera captures a picture or a video, attempts to detect the presence of an infrared signal. If present the camera decodes the payloads and acts correspondingly. This is what claim 1 protects.\nClaim 1. A method for using a camera, comprising: using the camera to detect an image based on at least visible light; determining whether the image includes an infrared signal with encoded data; in response to determining that the image includes an infrared signal with encoded data, routing at least a portion of the image to circuitry operative to decode the encoded data in the infrared signal; and in response to determining that the image does not include an infrared signal with encoded data, routing the image to a display operative to display the image.\nThe obvious application is to block the capture, or decrease the quality, in presence of such signal. For instance, a movie theater (or a classified facility) could beam such infra-red signal. The compliant camera/phone would then block the capture. The claims 4-7 clearly highlight this feature.\n4. The method of claim 1, further comprising: decoding the encoded data in the infrared signal; and modifying a device operation based at least on the decoded data.\n5. The method of claim 4, wherein modifying a device operation comprises applying a watermark to a detected image.\n6. The method of claim 4, wherein modifying a device operation comprises disabling a device function.\n7. The method of claim 6, wherein the device function is a record function.\nAnother usage, which is not related to content protection, is that the payload is analysed by an application that may display specific information on the screen. The typical example would be a museum which would provide an application. Each room or specific item would beam a code, the application would use this code to ask a server contextual information to display. Obviously, if you would combine captured video + contextual display, you have an augmented reality device :Happy:\n8. The method of claim 1, further comprising: decoding the encoded data in the infrared signal; displaying information on the display based at least on the decoded data.\nPotential applications are numerous as described in subsequent claims.\nIs this the solution against camcorders in theaters? I don’t think so. According to me, there are at least two issues:\n- It requires the camera to be equipped with the system. Unless all manufacturers of cameras would adopt it, which is highly unlikely, there will be models without this system. Pirates will use these ones.\n- Infra-red can be filtered by correctly tuned IR filters. Soon the pirates would find the frequency of IR, and use the corresponding filter. This is why IR jamming in theater did not work. Some companies tried to blast IR beams towards the audience to blind cameras. It was not a success.\nThe patent is available at http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=”20110128384″.PGNR.&OS=DN/20110128384&RS=DN/20110128384","domain":"optical_engineering"}
{"url":"http://holdenezsk555.affiliatblogger.com/5053830/eye-surgical-treatment","date":"2018-06-19T21:27:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863206.9/warc/CC-MAIN-20180619212507-20180619232507-00599.warc.gz","language_score":0.9542210698127747,"token_count":1331,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__78622604","lang":"en","text":"Eye Surgical treatment has actually come to be a mainstream method of vision correction, and this post will certainly discuss the benefits and disadvantages of three different techniques being provided to the medical consumer.\nLasik Eye Surgical procedure\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and also is an eye medical system which completely fixes vision by removing a thin layer of the cornea. This treatment works best on clients with moderate to high levels of myopia (nearsightedness), low to modest degrees of hyperopia (farsightedness) and also astigmatism associated with myopia, and who have thick corneas. It is one of the most popular surgical vision adjustment technique.\nPeople with regular eye sight see objects clearly since pictures are brought into a right focal point by the cornea and lens of the eye. Ideally, the cornea's curvature is uniformly matched to its size in a regular eye. People with astigmatism, nearsightedness or hyperopia have off-and-on formed corneas, so the items seen are not concentrated properly. LASIK adjustments corneal shape by precise removal of corneal cells, as well as by doing so corrects the eyes' concentrating power.\nThere are, nevertheless, risks to LASIK eye surgical procedure.\nThere is a remote possibility of total loss of vision. If this happens, it is usually since the individual had a pre-existing condition which ought to have averted the surgical procedure in the first place, such as pregnancy, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. People with big pupils are additionally bad candidates for LASIK. Dry eye syndrome will be aggravated by this procedure.\nA couple of clients complain that they completely see \"ghost\" images, have blurred vision, diminished contrast as well as negative night vision. When LASIK wased initially introduced, 5% of patients had post-operative problems; nevertheless, improvements in the treatment have caused this rate to drop to less compared to 1% if LASIK is executed by proficient professionals as well as individuals are effectively evaluated before surgical procedure. If issues do happen, they can frequently be resoved by a retreatment.\nFDA has actually authorized LASIK laser eye surgical treatment given that 1998. While there are a great deal of pleased patients, there are however no long-term research studies regarding its results. Recognize the limitations and also the dangers of LASIK eye surgical treatment before you sigh up for the procedure.\nThough much less well known, these tiny implants could improve vision in individuals with moderate to moderate nearsightedness without the threat of long-term eye damages intrinsic in the tissue elimination technique of LASIK. Intacs are semi-circular disks dental implanted in the cornea which stretch it to assume a flatter shape. Though somewhat much less accurate than LASIK, they are removeable and also changeable, so if the individual has an unexpected over- or under-correction, the dental implant could be removed as well as an additional of a various dimension placed to obtain the preferred correction. The implants are located at the edge of the cornea, so the central visual area is totally intact as well as undamaged, and the toughness of the cornea is undiminished, making it a much better alternative for pilots as well as those who participate in call sports where eye injury is an opportunity.\nIntacs disagree for severe nearsightedness and also greater than small astigmatism (1.00 diopters), as the cornea can only be stretched up until now. If the Intacs are gotten rid of, vision returns to its preoperative level. Besides vision adjustment, Intacs are also made use of to treat keratoconus.\nIntacs are FDA approved as well as Ten Years researches have actually exposed no significant issues with Intacs and very few client problems; however, due to the fact that the procedure takes much more training compared to LASIK, there are less eye surgical procedure clinics providing it. Nevertheless, the Intacs internet site offers a listing of experts in each check these guys out state, as well a few in Canada, Europe as well as Mexico.\nDue to the fact that lots of people do not wish to run the risk of LASIK as well as Intacs can not help those with extreme vision problems, intraocular lens implants (IOL) are a new choice accepted by the FDA in 2004 to deal with modest to severe nearsightedness. The Artisan lens, produced by Ophtec, resembles the sort of lens dental implant used to recover vision complying with cataract eye surgical treatment.\nThe new IOL, called the Artisan, is planned for only clients who have 2.5 diopters or much less of astigmatism.\nThe man-made lens does not change the all-natural lens, yet is placed before it. The primary problem discovered with the implant was the constant loss of endothelial cells in the corneas of individuals who got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are necessary in keeping the cornea clear. A three-year research revealed a continual steady loss of endothelial cells of 1.8 percent a year. At this moment, no person can forecast whether this loss will proceed at the very same rate forever, and even its effect on corneal function.\nTo minimize lasting impacts of the device on the corneal endothelium, the FDA is requiring that the brand-new lenses be identified to specify that they must only be dental implanted in over at this website patients whose corneal endothelial cells are thick sufficient to endure small cell loss.\nExtra serious problems were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up survey of its implant people to better examine the post-surgical occurrence of cataract development, retinal detachment and other ocular diseases.\nThe Artisan lens is intended to be an irreversible implant.Though it could be eliminated surgically, vision might not constantly go back to just what it was before getting the lens. Due to the fact that it does not influence astigmatism, individuals with this trouble may still need glasses.","domain":"optical_engineering"}
{"url":"http://www.eng.biu.ac.il/fridmama/","date":"2018-02-24T04:21:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815318.53/warc/CC-MAIN-20180224033332-20180224053332-00072.warc.gz","language_score":0.922316312789917,"token_count":145,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__114690587","lang":"en","text":"Temporal optics is a new and evolving field, and utilizing it can revolutionize optical data processing. Our lab focuses on developing advanced temporal optics devices. We design, fabricate and assemble the main building blocks of any temporal scheme which is the ultra-fast laser and the highly nonlinear fiber. Thus, we tailor the wavelength, bandwidth and repetition rate of the ultra-fast fiber lasers and the dispersion curve of the highly nonlinear fiber to the specific temporal scheme. Thanks to these abilities, and together with the experience in complex temporal schemes we are able to pursue advanced temporal schemes which were never been done before. Our temporal devices are useful for the telecommunication field since they will replace electronic devices leading toward optical data processing.","domain":"optical_engineering"}
{"url":"http://biysc.org/programmes/research-projects/nanolight-light-and-matter-nanoscale","date":"2017-11-20T13:19:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806066.5/warc/CC-MAIN-20171120130647-20171120150647-00085.warc.gz","language_score":0.9187056422233582,"token_count":418,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__230772494","lang":"en","text":"NanoLight: light and matter at the nanoscale\nInvisibility cloaks are related to solar energy new trends to fight global warming. And medieval rose windows can explain some aspects of nanomedicine, early diagnosis and noninvasive phototherapies. How? All these phenomena share a common ingredient: the interaction of light with nanomaterials. Come and fabricate your own nanoparticles and use them on a series of photonic challenges involving ultimately the interaction of light with living cells, at the core of cancer diagnosis and therapies.\nLight usually refers to the visible part of the electromagnetic spectrum, plus the infrared (heat) and the near ultraviolet. Light waves, as any other electromagnetic radiation, transport energy and momentum. Being able to control the interaction of light with matter at the nanoscale allows the construction of materials to concentrate heat in very small places, or select specific wavelengths (colors) of an incoming white radiation. Roughly speaking, we can engineer materials to deal with energy and information with accuracy and precision unreachable before the arrival of nanotechnology.\nIn this course, we have focused on the interaction of light with metallic nanoparticles. You will understand how the free electrons on these nanoparticles resonate with the electric field of light, and how this resonance depends on the composition and more critically on the size and form of the nanoparticles. You will then be asked to solve a series of chained challenges –which go from aligning an optical experiment to being part of the process of nanofabrication– with the ultimate goal of controlling and measuring heat generation at the nanoscale.\nA potential application of this technique is photothermal cancer therapy, in which cancerous cells are destroyed with concentrated heat, but during your stay at ICFO you will be also exposed to many other uses and features of the interaction of light and matter at the nanoscale, dealing with nanomedicine, solar cells, new materials, and even quantum information.\nPhysics, photonics, engineering, biomedicine\nLab coat, laptop","domain":"optical_engineering"}
{"url":"https://www.jayled-lighting.com/news/energy-saving-lamp-presentation.html","date":"2019-04-26T00:12:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578743307.87/warc/CC-MAIN-20190425233736-20190426015736-00433.warc.gz","language_score":0.9315727353096008,"token_count":149,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__99312895","lang":"en","text":"Overview Energy-saving lamps, also known as energy-savi […]\nOverview Energy-saving lamps, also known as energy-saving light bulbs, electronic light bulbs, compact fluorescent lamps, and all-in-one fluorescent lamps, are lighting devices that combine fluorescent lamps with ballasts (ballasts) into a single unit.\nPhilips was born in the Netherlands in the 1970s. The official name should be a rare-earth trichromatic compact fluorescent lamp. Just because the light source achieves the same light output, it only consumes 1/5 to 1 of the power of an ordinary incandescent lamp. /4, which can save a lot of lighting power and costs, so it is called energy-saving lamps.","domain":"optical_engineering"}
{"url":"http://griffithobs.org/btelescopes.html","date":"2014-10-24T07:43:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1414119645432.37/warc/CC-MAIN-20141024030045-00260-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.9413552284240723,"token_count":1291,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__10902255","lang":"en","text":"TelescopesGriffith Observatory is one of the premier public observatories in the world. One of the principal reasons is the presence and regular availability of high-quality public telescopes. Griffith J. Griffith wanted the public to have the opportunity to look through a telescope, which he felt might broaden human perspective. Mounted in the copper-clad domes on either end of the building, the Zeiss and solar telescopes are free to the public every day and night the sky is clear.\nSince opening in 1935, more than seven million people have put an eye to Griffith Observatory's original 12-inch Zeiss refracting telescope. More people have looked though it than any other telescope in the world. Located in the roof-top dome on the building's east end, the Zeiss telescope is intended mainly for nighttime viewing by the general public, commonly targeting the Moon, planets, and brightest showpiece objects of our galaxy. A popular public destination when special celestial events occur, more people viewed Halley's Comet and comets Hale-Bopp and Hyakutake through the Observatory's Zeiss telescope than any other telescope on the planet.\nThe telescope itself is in excellent condition and was unchanged by the renovation and expansion project. The copper roof of the telescope dome was repaired and restored, and the dome's drive mechanisms were replaced. The most significant change is the addition of a new exhibit station located in the Hall of the Eye exhibit hall below the telescope dome. The station provides live video and audio feeds from the telescope and allows visitors unable to climb the stairs into the telescope dome to have an observing experience. Most nights, other telescopes also are available on either the roof or front lawn to allow those in wheelchairs to observe directly.\nWhen the night sky is clear, the Zeiss telescope is open from the roof and serves up to 600 visitors per night. One of the Observatory's experienced telescope demonstrators guides the public in looking through the eyepiece of the 12-inch Zeiss refractor (so called because its light is collected and focused by a 12-inch diameter glass lens at the front of the 16-foot-long telescope tube). The main telescope tube carries a smaller 9 -inch refracting telescope piggyback, which permits two different views of a single object, as appropriate.\nThe telescope sits on a tilted mounting (an equatorial mount) aligned with the Earth's axis, and it is slowly turned by a motor to compensate for the Earth's rotation so that objects remain centered in view for as long as is desired. Counterweights precisely balance the telescope so that the Telescope Demonstrator can easily move the instrument by hand in spite of its 9,000-pound weight. The unique design of construction by Zeiss also counteracts the bending of the telescope due to gravity with counterweighted levers in the telescope's tube and mounting. Such a system is said to be \"stress compensated.\"\nThe genesis of Griffith Observatory's public telescope occurred when Griffith J. Griffith was invited to visit to Mount Wilson Observatory, then home to the world's largest operating telescope, the 60-inch reflector. While there, he was given the opportunity to view a celestial wonder through the telescope. Profoundly moved by the experience, Griffith seized on the idea of constructing a public observatory with a telescope that could be used by all residents of Los Angeles. He specified in his will that the telescope was to be \"at least 12-inches in diameter\" and \"complete in all its details\" and was to be located \"high and above the Hall of Science.\" In 1931, the Griffith Trust ordered the telescope from the Carl Zeiss Company of Jena, Germany; the $14,900 spent on the instrument was the first purchase of material for Griffith Observatory.\nFor more information about the Observatory's Zeiss telescope, please click here.\nGriffith Observatory's three solar telescopes bring the Sun directly to visitors in the west rotunda of the Ahmanson Hall of the Sky. On clear days, each of these telescopes provides a different real-time view of our local star, including sunspots and solar flares. The three beams of sunlight for the telescopes are focused into the rotunda by a triple-mirrored tracking device called a coelostat (Latin for 'sky-stopper'), which is located above in the western dome of the building. The solar telescopes operate only during clear daytime hours.\nCoelostats are often used in solar observatories where moving small tracking mirrors is preferable to moving large telescopes attached to heavy equipment. Designed by Russell Porter, whose drawings served as the basis for both the 200-inch telescope at Palomar Observatory and Griffith Observatory, the three mirrors of the Observatory's coelostat move continuously during the day to remain focused on the Sun as it appears to move across the sky. The incoming light bounces off one mirror to another and then down through openings in the rotunda ceiling to the telescopes below. The telescopes show a white light image of the Sun, a view through an H-alpha filter (spectrohelioscope), and a solar spectrum (spectroscope). One of the largest and most-visited public solar observatories in the world, Griffith Observatory has enabled millions of people to observe the Sun safely.\nThe coelostat instrumentation in the dome and three telescopes housed in the rotunda remain essentially unchanged by the renovation and expansion project, other than new motors for the dome, new electrical service, and restoration of the telescope bronze and optics. A new station in the gallery receives live signals from each of the telescopes to provide an equivalent observing experience for those unable to climb the stairs to the rotunda where the telescopes are mounted.\nFor more information about the Observatory's solar telescope, please click here.\nOn any given night, Observatory staff may set up one or more free-standing telescopes on the lawn or East Observation Terrace to enable more people to put their eyeball to the sky. Once a month, the Los Angeles Astronomical Society and Sidewalk Astronomers hold a star party at the Observatory in which many more telescopes are available for public viewing.\nIn addition, the Observatory has mounted a number of coin-operated telescopes along the south and west perimeters of the building. These devices enable visitors to look at objects in the Los Angeles Basin and surrounding mountains.","domain":"optical_engineering"}
{"url":"https://realnog.com/cheap-solar-cells-four-points-you-ought-to-consider-in-deciding-on-the-best-solar-cells/","date":"2022-05-20T14:37:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662532032.9/warc/CC-MAIN-20220520124557-20220520154557-00614.warc.gz","language_score":0.9605043530464172,"token_count":1003,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__263150682","lang":"en","text":"Color animated solar cells are tightening the effectiveness space, carbon solar cells have actually ended up being a fact as well as clear solar cells are coming to be functional. Regardless of these growths there is still substantial area for 3rd generation solar cell modern technology to enhance.\nBecause Michael Gratzel’s site paper on color animated solar cells in 1991, clear cells have actually been an appealing location of solar research study. Most significantly the effectiveness of clear cells might not complete with crystalline modern technology, which stays the king of solar. Clear cells, and also various other 3rd generation modern technologies, are not extremely reliable or long lasting, they can be versatile, very easy to set up and also have distinct physical residential or commercial properties.\nThe group’s natural solar cell was 1.7% performance as well as higher than 65% openness. The brand-new solar cell established at UCLA has actually taken substantial actions to enhance efficiency.\n70% is a document for photovoltaic or pv openness and also, while 4% might not appear like a lot, maintain in mind that slim movie solar cells have a standard of 10% performance. Yang Yang, the teacher that led the research study, claimed “These outcomes open up the possibility for noticeably clear polymer solar cells as add-on parts of mobile electronic devices, building-integrated photovoltaics as well as clever home windows and also in various other applications.”\nUsually 3rd generation innovations, such as clear solar cells, utilize titania (TiO2) nanoparticles to enhance their effectiveness. The cell’s conductor, which is completely clear, is composed of a silver nanowire movie doped with titania nanoparticles. Previous styles consisted of nontransparent conductors which, rather normally, did not make for really great clear photovoltaic or pv cells.\nAcquiring a grid connection inverter for solar home windows might enforce an additional expense on the home owner, yet it would certainly not be extremely substantial. Keep in mind that if the specific currently has actually a dispersed power resource, including solar home windows ends up being also a lot more easy.\nClear photovoltaic or pv product can be made use of in all of these applications to generate tidy, trusted power. When brand-new home windows are required in a structure, https://www.jdkenergy.com/ clear solar cells can be change glass panels for really little added expense. Solar glass is a simple selection for companies as the cells, which are most likely to be really affordable, will certainly decrease their electrical power expenses.\nReduced price and also resilient clear cells can match existing solar modern technology by raising the variety of wavelengths of light that are soaked up. The UCLA cell, which runs mostly on infrared light, might not be corresponding to this innovation, however a cell with a various band space could be.\nColor animated solar cells are tightening the effectiveness space, carbon solar cells have actually ended up being a truth and also clear solar cells are coming to be sensible. Given that Michael Gratzel’s site paper on color animated solar cells in 1991, clear cells have actually been an appealing location of photovoltaic or pv study. Clear solar cells run utilizing the very same device as even more usual solar panels to create electrical power: the photovoltaic or pv result. Typically 3rd generation innovations, such as clear solar cells, utilize titania (TiO2) nanoparticles to boost their performance. The UCLA cell, which runs primarily on infrared light, might not be corresponding to this innovation, however a cell with a various band void could be.\nNumerous various layouts and also products are made use of to make clear solar cells. The cell as a result creates many of its electrical energy from infrared light. The scientists were not really worried regarding this, claiming that some added study might prolong the cell life substantially.\nClear solar cells run making use of the very same system as even more usual solar panels to generate electrical power: the photovoltaic or pv result. Clear cells vary from slim as well as crystalline movie panels in that they take in just non-visible light, such as infra red and also ultraviolet. In enhancement, the cells are typically adaptable given that they are not made from silicon wafers and also have effective production techniques, such as rolling, that create massive economic climates of range.\nStyles have actually currently been made where the cell would certainly live straight on the display, listed below the capacitance degree, enabling for customers to maintain utilizing their phones as touch displays. Numerous likewise think that the cells can be effectively set up in high-rise buildings as well as various other huge companies which have a whole lot of home windows as well as sunlight. 3M has their very own clear solar cell that they are intending to pitch to federal government and also company structures.","domain":"optical_engineering"}
{"url":"http://buyviagraonline-canada.net/led-lighting-uv-or-not-uv-that-is-the-question/","date":"2020-07-09T13:51:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655900335.76/warc/CC-MAIN-20200709131554-20200709161554-00078.warc.gz","language_score":0.9513505101203918,"token_count":759,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__169300047","lang":"en","text":"One of the huge arguments currently circulating about LED lighting is whether it comprises Ultra Violet (UV) light. # & you 39;ll discover many announcements online saying that”LEDs don’t have any UV emissions” Then there are the ones that state this isn’t entirely correct. So which is it? It is dependent upon how you look at it.\nIt 's crucial that you know what folks are actually inquiring. Most actually appear to get concerned about one of 2 things: Can there be a health issue from utilizing LEDs, and / or are LEDs better compared to other light sources for shielding UV movie and maintaining art, artifacts, and even décor from discoloration and aging?\nTo answer the questions we have to first look at just how White Light LEDs are created. Without getting into all of the scientific details of this varying Gallium doping combinations of semiconductor diodes, it's important to see that LEDs in and of these are oblivious of white light. White light consists of all of the colours of the spectrum. While science managed to create LEDs from the three additive primary colors of light (Red, Blue and Green) and varying colors of those colours, a real white proceeded to bypass them.\nIt wasn’t before 1993 when Vibrant Blue LED's were made which White LEDs could take a look. Science found when a Vibrant Blue LED is coated with phosphor, together with a rare earth chemical, the blue light is transformed by the phosphor to some other colour wavelength producing exactly what the naked eye perceives as white lighting.\nUnlike a shared beliefs, the range of the light emitted by this phosphor mixture is broadband in nature also elicits at more wavelengths providing a complete range of visible light.\nIt is worth noting that although Fluorescent technology also uses phosphors (the coat to the interior of the fluorescent and CFL lamps), the light spectrum once the phosphor unites with LED light is a lot thinner.\nWith White LEDs, the depth of the phosphor coating and the total amount of yellow in the phosphor itself, in part decides the quantity of vivid blue LED light that’s absorbed by the phosphor. This results in the various CRI and Kelvin Temperatures of this LED. The more blue consumed by the phosphor, the lower the Kelvin temperature as well as also the yellower (redder) the mild. This also impacts the efficiency of this LED. The reduced the Kelvin temperature, the greater of the true LED light is absorbed by the phosphor and the more energy needed to receive the exact same light output.\nback to our initial question, do White LEDs used in general lighting applications comprise UV lighting? Brilliant Blue LEDs used in producing White LEDs do create some UV (from the 400-425nm scope )nonetheless, that the quantity of UV emitted by the phosphor, is significantly less than that which is generated. In fact, the last quantity of emitted UV is so modest as to mathematically state that white LEDs don’t emit any UV light.\nSo, is there sufficient UV emitted to present a wellness risk? ) No, the quantity of UV emitted by White LEDs is well under a single percentage point. For this exact same reason LED Lighting has come to be the light kind of option for museums forcing to maintain valued artifacts and preserve their original colours. But you would rather not use an unfiltered LED at a clean room in which a few kinds of movie are sensitive to UV to be influenced by mild to wavelengths of 415nm.\nIn conclusion, does LED lighting comprise Ultra Violet Light? ) It is dependent upon how you look at it. White LEDs create some UV lighting, however they exude less.","domain":"optical_engineering"}
{"url":"https://www.wbm-supershop.com/products/golf-digital-range-distance-finder","date":"2021-07-28T17:23:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153739.28/warc/CC-MAIN-20210728154442-20210728184442-00332.warc.gz","language_score":0.8784939646720886,"token_count":399,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__131238134","lang":"en","text":"The item is a simple and practical digital golf range distance finder scope, which is a precision optical instrument designed for finding the distance between you and the flag. It adopts ruby coated optical lens with UV protection , and features 7 times magnifications with 462 ft, field of view at 1000 yards. It supports two operational modes, namely green mode and general mode. Besides, it comes with a soft carrying case bag to protect the golf scope. With pocket design and easy to use, it is really a wonderful 7 x digital golf range finder for choice.\n- Color: as shown in the pictures.\n- Material: durable hard plastic.\n- 100% brand new and high quality 7 x Digital Golf Range Distance Finder Golfscope Scope.\n- A precision optical instrument designed for finding the distance between you and the flag.\n- 7 Times magnification with 462ft - field of view at 1000 yards.\n- Ruby coated optical lens with UV protection.\n- Two operational modes: Green mode and general mode:\n1. The green mode is designed especially for golfers - you can easily measure the distance from where you stand to the cup.\n2. The general mode can be used in other situations - it can calculate the distance between you and the target you desired.\n- Powered by 2 * CR 2032 3V batteries (included).\n- Come with a soft carrying bag case to protect the golf scope.\n- Pocket size, lightweight, and easy to carry.\nHow to Use\n1. Press the ON /Adjust Button.\n2. Aim the base line on the screen on a level with the green.\n3. Press ON / Adjust button to lower the location of horizontal line to the top of the pin.\n4. The number displayed on the top of the screen is the distance in yards.\n1 * Carry Strap\n1 * Soft Carrying Bag Case\n2 * CR2032 3V Batteries","domain":"optical_engineering"}
{"url":"https://theveritemedia.com/soft-box/","date":"2023-03-24T16:50:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945287.43/warc/CC-MAIN-20230324144746-20230324174746-00791.warc.gz","language_score":0.9515368342399597,"token_count":118,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__91705911","lang":"en","text":"It is a photographic lightening device that is used to create a soft and diffused light. The design of a soft box is such that it is an enclosure around the light source, has sides for reflecting, back walls and diffusing material in front of source. The make the reflecting efficient sides and back walls are made of bright surface –either they are aluminized or covered with aluminum foil. So it does not matter if your light source is flash or continuous like florescent bulb. But keep in mind that to bear the wattage of heat of light it must be heat rated.","domain":"optical_engineering"}
{"url":"http://electrotopic.com/category/photodiode/","date":"2019-12-10T19:30:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540528490.48/warc/CC-MAIN-20191210180555-20191210204555-00045.warc.gz","language_score":0.8943431377410889,"token_count":513,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__89291397","lang":"en","text":"Photodiode is A photodiode is a semiconductor device that converts light into electrical current. The current is generated when photons are absorbed in the photodiode. Photodiodes can contain optical filters\nThere are 4 types of photodiode Avalanche Photodiode, PIN Photodiode, Schottky Photodiode and PN photodiode. Avalanche Photodiode: Avalanche photodiode technology is used in areas of low light due to its high gain. In contrast,\nAs the applied reverse bias increases, the photodiode current increases sharply. The blocking voltage applied at this point is called the breakdown voltage. This is the maximum applied reverse voltage\nInsert the 100 ohm resistor into the breadboard and connect each leg of it to one leg of the photodiode. Connect the probes of the digital multimeter to the legs\nLight enters the photodiode region which is not folded and causes the formation of electron-hole pairs. Under the action of the electric field, electrons migrate to the avalanche region.\nMain Difference between LED and Photodiode is that LED converts electrical energy in to Light and Photodiode convert light in to electrical energy.\nA photodiode is a transducer that captures light energy and converts it into electrical energy. Flow is generated when photons are absorbed in the photodiode. A small amount of current\nThe responsivity of a photodiode can be defined as the ratio of the photocopic current produced to the power of light that occurs at a certain wavelength. Responsivity (or radiation\nWhat is a light dependent resistor? a ldr is a photo-conductive material. when the light is exposed to ldr, the electromagnetic radiation is sufficient to excite the electrons towards the\nThe photodiodes are mainly used as a switch, that is to say when the light comes on. now the current generated by a photon is very small. If the diode\nWhy is photodiode operated in reverse bias? a reverse-biased pn junction receives only a small leakage current. the photocurrent generated by the incoming light is therefore easy to detect. if\nWhy is photo diode reverse bias while LED is forward bias? The most used applications are to emit light, while the photodiode detects the presence of light. when it is\nHow to measure light absorption percentage using a photodiode let’s trying to find the absorption of some sort of glass filter plate. connect your photodiode (pd) to a series resistor and","domain":"optical_engineering"}
{"url":"http://troyqzho413.tribunablog.com/eye-surgical-treatment-2981514","date":"2018-04-19T20:49:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937045.30/warc/CC-MAIN-20180419204415-20180419224415-00472.warc.gz","language_score":0.950234055519104,"token_count":1335,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__26018691","lang":"en","text":"Eye Surgical treatment\nEye Surgical treatment has come to be a mainstream technique of vision correction, and also this post will clarify the advantages and also downsides of three various methods being supplied to the medical customer.\nLasik Eye Surgical treatment\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis as well as is an eye medical system which completely remedies vision by eliminating a thin layer of the cornea. This treatment works best on individuals with moderate to high degrees of myopia (nearsightedness), low to moderate degrees of hyperopia (farsightedness) and also astigmatism related to nearsightedness, and also who have thick corneas. It is one of the most widely known surgical vision modification method.\nPeople with typical eye view see objects clearly due to the fact that pictures are brought into a right centerpiece by the cornea and lens of the eye. Preferably, the cornea's curvature is equally matched to its length in a typical eye. People with astigmatism, nearsightedness or hyperopia have irregularly shaped corneas, so the items seen are not concentrated appropriately. LASIK changes corneal form by precise removal of corneal cells, and also by doing so fixes the eyes' focusing power.\nThere are, nonetheless, risks to LASIK eye surgery.\nThere is a remote opportunity of full loss of vision. If this takes place, it is typically due to the fact that the patient had a pre-existing condition which ought to have averted the surgical treatment in the first place, such as maternity, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with big students are also bad candidates for LASIK. Dry eye disorder will certainly be intensified by this procedure.\nA couple of patients complain that they completely see \"ghost\" pictures, have obscured vision, decreased contrast and bad night vision. When LASIK was first presented, 5% of individuals had post-operative problems; however, improvements in the procedure have actually created this rate to go down to much less compared to 1% if LASIK is carried out by skilled professionals as well as people are properly evaluated before surgical treatment. If troubles do occur, they can typically be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgical procedure because 1998. While there are a lot of pleased individuals, there are nevertheless no long-term researches concerning its effects. Recognize the constraints and also the threats of LASIK eye surgical procedure prior to you sigh for the treatment.\nThough much less popular, these tiny implants could boost vision in individuals with moderate to modest nearsightedness without the risk of permanent eye damage fundamental in the cells elimination strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter shape. Though slightly less accurate than LASIK, they are removeable and replaceable, so if the person has an unanticipated over- or under-correction, the dental implant can be removed and an additional of a various dimension placed to obtain the preferred correction. The implants are located beside the cornea, so the central visual area is completely undamaged and also intact, as well as the stamina of the cornea is undiminished, making it a much better alternative for pilots and those that take part in call sporting activities where eye injury is an opportunity.\nIntacs are unsuitable for extreme nearsightedness and greater than minor astigmatism (1.00 diopters), as the cornea can just be stretched until now. If the Intacs are eliminated, vision returns to its preoperative degree. Besides vision correction, Intacs are additionally utilized to deal with keratoconus.\nIntacs are FDA authorized and also Ten Years studies have actually revealed no significant problems with Intacs and also very few person grievances; nonetheless, since the treatment takes much more training compared to LASIK, there are fewer eye surgery facilities using it. Nonetheless, the Intacs web site gives a checklist of specialists in each state, as well a couple of in Canada, Europe and Mexico.\nDue to the fact that many people do not intend to run the risk of LASIK and Intacs could not help those with serious vision problems, intraocular lens implants (IOL) are a brand-new option authorized by the page FDA in 2004 to correct modest to extreme nearsightedness. The Artisan lens, made by Ophtec, is similar to the kind of lens dental implant utilized to bring back vision adhering to cataract eye surgical treatment.\nThe brand-new IOL, called the Artisan, is planned for only people who have 2.5 diopters or much less of astigmatism.\nThe synthetic lens does not change the all-natural lens, however is put in front of it. The primary trouble found with the dental implant was the steady loss of endothelial cells in the corneas of clients that got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are necessary in keeping the cornea clear. A three-year research revealed a regular steady loss of endothelial cells find this of 1.8 percent a year. At this moment, no person can anticipate whether this loss will proceed at the exact same price forever, or even its effect on corneal function.\nTo reduce long-lasting effects of the gadget on the corneal endothelium, the FDA is calling for that the new lenses be labelled to define that they need to only be implanted in clients whose corneal endothelial cells are thick adequate to withstand minor cell loss.\nA lot more serious problems were couple of: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to perform a five-year follow-up study of its dental implant patients to better assess the post-surgical incidence of cataract development, retinal detachment and various other ocular conditions.\nThe Craftsmen lens is planned to be an irreversible implant.Though it could be gotten rid of operatively, vision might not constantly go back to just what it was before obtaining the lens. Due to the fact that it does not affect astigmatism, individuals with this problem might still call for glasses.","domain":"optical_engineering"}
{"url":"https://cobbsbelux.com/en/magpul-eyewear-performance-technology/","date":"2024-03-04T15:11:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00415.warc.gz","language_score":0.9407180547714233,"token_count":430,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__98061888","lang":"en","text":"Magpul is very well known for its firearm accessories and outdoor equipment. Regarding their eyewear, they elevate to a new standard with their inventive Eyewear Performance Technology. They understand the demand for suitable and durable eyewear that makes all the difference during outdoor activities, tactical operations, or simply a day at the shooting range. That’s why they create ballistic-rated eyewear from high-quality material with an enduring design. It enhances the wearer’s vision, comfort, and safety in the most demanding environments. Suitable for military and law enforcement operations to sports and outdoor adventures.\nMagpul’s eyewear can withstand high-velocity impacts. The frames are made of TR90NZZ, the strongest thermoplastic frame material you can find. It will give the wearer maximum impact resistance, flexibility, and comfort. In other words durable ballistic protection. They test them to high impact levels comparable to being hit by bomb shrapnel. Most of their models exceed MILSPEC (MIL-PRF 32432) and ANSI Z87.1, an important norm for the eye protection industry in the USA.\nThe unbreakable lenses are made from polycarbonate, the same material that flight helmet visors are made of. They give a clear view and several lens options are available as polarized and non-polarized lenses, or mirroring options. The lenses are engineered to minimize distortion and enhance visual clarity. This contributes to situations in which identifying targets, assessing surroundings, and making accurate judgments are crucial. The lenses are oleophobic coated to provide liquid and chemical protection and they are scratch-resistant. An anti-reflective coat is applied to minimize the distraction of reflections and maintain an unobstructed field of view.\nMagpul’s frames offer you comfort through the padded and low-profile temples that can be easily integrated underneath helmets, communication headsets, and over-the-ear hearing protection. The frames also feature rubber nose and temple pads that are overmolded into the frame which ensures dependable, non-slip reliability and comfort.","domain":"optical_engineering"}
{"url":"https://www.gearsinnotion.com/photography-and-camera-vocabulary-explained/","date":"2024-03-04T05:54:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476413.82/warc/CC-MAIN-20240304033910-20240304063910-00559.warc.gz","language_score":0.9485939741134644,"token_count":626,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__34572339","lang":"en","text":"Read on for more explanations of some of the most common and useful terms.\nAll cameras have a diaphragm inside them that can change size to admit more or less light. This is very similar to how the human eye works a circular opening that changes size depending on light levels. For many, the most confusing part about aperture is the nomenclature used. This is quoted in what are commonly referred to as ‘f-stops’. To better explain, a smaller f-stop number such as f/1.8 means the aperture will open wider while a larger f-stop number such as f/22 means the aperture will open very slightly. Unless it is an SLR, your camera will have a range of available f-stops, for example f/2.8-f/8. This means that the widest the aperture can open is f/2.8 and the narrowest, f/8.\nYour digital camera contains a light-sensitive panel that records the light that hits it when you press the button to take a photo. This performs the same function that film does in older cameras. The sensor remains hidden behind the closed shutter (see below) and is only exposed when a photo is taken. Your camera records the light hitting the sensor when you take a picture, and stores the result on the memory card in the camera.\nA cameras shutter sits just in front of the image sensor. It is normally closed so that no light is getting through to the sensor, but when you press the button, it opens for a certain length of time to expose the sensor to light. The shutter in most cameras will be comprised of two curtains. For longer exposures, the whole sensor might be exposed for a period of time before the second curtain closes it. In the case of fast shutter speed however, the first curtain opens only a tiny gap between it and the second curtain, and travels across the sensor with the second curtain following close behind. The speed of the shutter is expressed in whole seconds as well as fractions of a second. A shutter speed of 1/640 means the shutter will open and the sensor exposed for only one-six-hundred-and-fortieth of a second.\nThe term ‘exposure’ refers to exposing the sensor or film to light in order to take a photograph. In addition, a photograph is referred to as an ‘exposure’ for this reason. When you take a photograph, how much light the light-sensitive part of the camera is exposed to is determined by the aperture and shutter speed settings, as explained above. Darker conditions will require an exposure with a lager aperture setting, a slower shutter speed, or both. The term ‘correct exposure’ refers to the approximation of what could be seen by the photographer’s naked eye at the time of the photograph, however this is truly a matter of taste. It is possible however, to take a photo in the dark of night at a shutter speed so long that the photo appears to have been taken in the daytime.","domain":"optical_engineering"}
{"url":"https://getitlow.net/product/nikon-70-300-mm-f-4-5-6g-zoom-lens-with-auto-focus-for-nikon-dslr-cameras-renewed/","date":"2020-10-22T04:19:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107878879.33/warc/CC-MAIN-20201022024236-20201022054236-00605.warc.gz","language_score":0.7535091638565063,"token_count":555,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__9813637","lang":"en","text":"Included Components AF FX NIKKOR 70-300mm f/4-5. 6G Zoom Lens for Nikon DSLR Cameras LC-62 Snap-on Front Lens Cap LF-4 Rear Lens Cap HB-26 Bayonet Lens Hood PRODUCT HIGHLIGHTS F Mount Lens/FX Format Aperture Range: f/4 to 32 Super Integrated Lens Coating Auto and Manual Focus Minimum Focus Distance: 4. 9′ Filter Diameter: 62mm Rounded 9-Blade Diaphragm specs Aperture Control Design : Aperture controlled by camera Color: Black Compatible Lens Hood Part Number: HB-26 Compatible Mountings: Nikon F (FX) Focus Type: Screw drive from camera Image Stabilization: No Item Dimensions: 2. 91 x 2. 91 x 4. 61 inches Item Display Weight: 0. 93 pounds Item Weight: 0. 94 pounds Lens Design: Telephoto Lens Type : Zoom lens Macro Focus Range : 1. 50 m Material Type: Plastic barrel, plastic mount Maximum Aperture: ?/4 Maximum Aperture Range: F4. 0 – F5. 6 Maximum Focal Length: 300 mm Maximum Format Size: 35mm full frame Minimum Aperture: ?/45 Minimum Focal Length : 70 mm Minimum Focal Range : 58. 8 inches Model Year: 2013 Number of Diaphragm Blades: 9 Number of Elements: 13 Number of Groups: 9 Optical Zoom: 4. 3x Photo Filter Thread Size: 62 mm Real Angle Of View: 34° 20′ – 8° 10′ DX Picture Angle: 22° 50′ – 5° 20′ Style Name : Zoom Lens with Auto Focus UNSPSC Code: 45121603 Zoom Type : Motorized Zoom Package Weight 1. 5 lb. Box Dimensions (LxWxH) 7. 0 x 5. 0 x 5. 0″ Note: all lens covers have to be opened counterclockwise.\nMake sure this fits by entering your model number.\nThis lens only work on AF with the Nikon D7000 cameras and up\nAutofocus is not supported by DSLRs lacking an autofocus motor, such as the D40, D40x, D60, D3000, D3100, D3200, D3300, D5000, D5100, D5200, D5300, and D5500 cameras, and the lens may be used with manual focus only.\nThis Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, A minimum 90-day , and may arrive in a generic box.","domain":"optical_engineering"}
{"url":"http://suthipri.com.my/3Nethra-Neo/","date":"2023-02-06T15:11:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500356.92/warc/CC-MAIN-20230206145603-20230206175603-00388.warc.gz","language_score":0.8419171571731567,"token_count":216,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__264312245","lang":"en","text":"A compact, portable, and easy-to-use mydriatic wide-field digital imaging system used for the photo documentation of ocular diseases that manifest in human eyes.\nThe ergonomically designed, lightweight hand piece allows for single-handed operation, and captures 120-degree high-resolution images of the posterior and anterior segments of the eye.\nThe contact device is easily operated by qualified clinicians and can be deployed in versatile clinical environment such as hospitals, operating rooms, and Neonatal Intensive Care Units (NICU)\nCompact and ergonomic design\nHigh resolution images at 120-degree FOV\nLightweight and easy to use\nIntelligent intuitive controls and workflow\nProvides historical data as reference to evaluate disease progress\nUnique, built-in, compact, warm white LED-based illumination system\nInnovative focusing that enable noiseless operation\nMobility enhances wider reach\nDelivers objective evidence to support clinical findings\nProvides visual health data for medico-legal purpose","domain":"optical_engineering"}
{"url":"http://eyerad.ch/index.php?option=com_content&view=article&id=105&Itemid=126&lang=en","date":"2019-03-25T07:47:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912203842.71/warc/CC-MAIN-20190325072024-20190325094024-00033.warc.gz","language_score":0.9317165017127991,"token_count":334,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__17696873","lang":"en","text":"What Tests May Be Done In The Ophthalmologist’s Office Before The Procedure?\nOptical Coherence Tomography (OCT) is a non-invasive imaging technology that can provide very high-resolution images of retinal structures. The anatomic layers within the retina can be differentiated and retinal thickness can be measured. OCT is useful for detecting fluid and retinal changes in patients with wet AMD.\nA Visual Acuity Test is used to determine the smallest letters a person can read on a standardized chart. The number of letters gained or lost is a useful measure of the progress of disease or vision improvement with treatment.\nDigital Fundus Photography is used to provide an image of the retina that can detect the presence of disease. The photograph of the retina is taken with a special digital camera system that is designed for ophthalmic applications. The pupil is typically dilated to allow the photographs to be taken.\nFluorescein Angiography (FA) is a test that provides an image of the blood vessels in the back of the eye. Dye is injected into a vein in the arm and photos are taken over a period of several minutes. FA may be repeated to evaluate progress of the disease and response to therapy over time.\nAxial Length Measurement of the eye is made using ultrasound or a special optical device (laser interferometer), which measures the eye’s features using light. Ultrasound measurements are taken with a probe that is applied to the anesthetized eye, while a laser interferometer involves no eye contact, and is similar to a slit-lamp eye exam.","domain":"optical_engineering"}
{"url":"https://inosaki.com/product/ui-5880fa-rev-1-2-ids-imaging/","date":"2023-09-30T09:16:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510671.0/warc/CC-MAIN-20230930082033-20230930112033-00781.warc.gz","language_score":0.7714157104492188,"token_count":717,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__282277070","lang":"en","text":"IDS imaging camera was the easiest integration cameras in the market. Therefore, is so easy for IDS cameras become most compatible with market most popular machine vision software such as OpenCV, Labview, Cognex and Halcon vision software. IDS also provide wide range of industrial C-mount cameras such GigE 5, GigE 10, GigE, USB 2.0, USB 3.0, and USB 3.1 interfacing models.\nFor find out more IDS Imaging please follow the link.\nMeanwhile, if you need technical support, please email us firstname.lastname@example.org\nIDS Imaging Camera Features\nThe UI-5880FA Rev.1.2 GigE CMOS camera with the 1/1.8″ rolling shutter CMOS sensor Sony IMX178 offers an extremely high resolution of 6.4 MP (3088 x 2076 px, aspect ratio 3:2), which is ideal for visualization tasks in microscopy or as a cost-conscious option for intelligent traffic systems (ITS).\nThe sensor from the Sony STARVIS series features BSI technology (“back-side-illumination”) and is one of the most light-sensitive sensors with a low dark current close to the SCMOS range (Scientific CMOS). It can be exposed for up to 120 seconds and also produces impressive results even in extremely low starlight.\nThe UI-5880FA Rev.1.2 IDS imaging camera also provides two additional general purpose I/Os (GPIOs). The power supply is provided by the screw-on, dust proof and splash waterproof M12 circular connector.\nTogether with our GigE industrial cameras, the Sony IMX178 delivers frame rates of up to 18 fps at full resolution. Thanks to the 1/1.8″ sensor size, a wide selection of C-mount lenses is available for the UI-5880FA Rev.1.2 GigE camera model.\n- UI-5880FA-M-GL Rev.1.2; MPN: AB12580\n- UI-5880FA-C-HQ Rev.1.2; MPN: AB12579\n- UI-5880FA-M-GL Rev.1.2: AB12580\n- UI-5880FA-C-HQ Rev.1.2: AB12579\n|Frame rate @ resolution max.\n|Resolution (h x v)\n||3088 x 2076\n||7.411 mm x 4.982 mm\n||Global Start Shutter, Rolling Shutter\n|Product Life Cycle","domain":"optical_engineering"}
{"url":"https://www.hospitalstore.com/slit-lamp/","date":"2023-09-27T12:56:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510297.25/warc/CC-MAIN-20230927103312-20230927133312-00546.warc.gz","language_score":0.8869189620018005,"token_count":1030,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__98145100","lang":"en","text":"Lowest Slit Lamp Price at Hospital Store:\nWe offer the best slit lamp at the best price for patient doctors, hospitals, clinics, nursing home and more. At our online medical supply store \"Hospital Store\". We offer a slit lamp or in different brands like the Rexxam slit lamp, Huvitz slit lamp, Labomed slit lamp, Keeler slit lamp. The cost of the slit lamp at hospital store is the lowest compared to other sellers. There are many options of slit lamp machine available at an affordable price that can be purchased online. Buy eye lamp medical online from Hospitals Store.\nSlit Lamp Price Range:\nThe price of slit lamp can vary significantly, depending on the type and brand. Slit Lamp Price Ranges between In INR 1 lakh to INR 20 lakh.\nDetailed Slit Lamp Price List:\nFor your convenience, we have categorized our slit lamp prices based on brands and types. Below, you will find a detailed price list:\n|Product Name||Price Range|\n|Huvitz slit lamp||₹48,000-₹147,850|\n|Zeiss slit lamp||₹50,000-₹2,200,000|\n|Labomed slit lamp||₹45,000-₹126,000|\n|Keeler slit lamp||₹60,000-₹180,000|\n|Nidek slit lamp||₹40,000-₹200,000|\nWhat Is Slit Lamp?\nA slit lamp is a device that allows a medical professional to examine the entire eye at extreme magnification and to determine depth. An optical slit lamp is a specialized instrument used by eye care professionals to examine the anterior segment of the eye. A slit lamp ophthalmoscope consists of a binocular microscope and a light source that can project a thin, slit-shaped beam of light onto the eye. The ophthalmic slit lamp allows eye care professionals, such as ophthalmologists and optometrists, to evaluate and diagnose various eye conditions and diseases. By adjusting the slit beam's width, height, and angle, the doctor can illuminate specific areas of the eye and observe its structures in detail.\nBuy Different Types of Slit Lamp at Online:\nThere are different types of slit lamp are available at our online medical equipment marketplace \"Hospital Store\".\n- Hand held Slit Lamp: Handheld slit lamps are portable and lightweight, designed for use in remote or mobile settings. They offer convenience and flexibility for eye examinations outside traditional clinical settings.\n- Digital Slit Lamp: This slit lamps integrate digital imaging technology into the instrument. They have built-in cameras that capture high-resolution images or videos of the eye structures during the examination. These images can be stored for documentation, analysis, or sharing with other healthcare professionals.\n- Video Slit Lamp: This slit lamps are equipped with video recording capabilities, allowing real-time video capture of the eye examination. These are often used for educational purposes, research, or for documentation of dynamic eye conditions.\n- Table Slit Lamp: A table slit lamp is a type of slit lamp that is designed to be placed on a table or a dedicated examination unit. It consists of a binocular microscope, a light source, and a mechanical slit mechanism. This slit lamps offer stability and ease of use, providing accurate examination and diagnosis of various eye conditions. They are commonly used in ophthalmic clinics and hospitals for routine eye examinations and specialized procedures.\nBuy Slit lamp from Best Brands at Online:\nHeine Slit Lamp: The Heine Slit Lamp is compact and light-weight. Their Slit Lamp with an adjustable slit image and optional blue filter for human and veterinary medicine for the examination of the anterior segment.\nFeatures of Slit Lamp:\nHere are some of the features of optical slit lamp.\n- Illumination: Slit lamps provide adjustable illumination that can be focused on specific areas of the eye. The intensity of the light can be controlled to ensure optimal visibility during examination.\n- Magnification Power: Slit lamps offer high magnification capabilities, allowing eye care professionals to observe the eye structures in detail. Typical magnification ranges from 6x to 40x, enabling precise examination and diagnosis.\n- Width and Length: The slit beam projected by the lamp can be adjusted in width and length. This feature allows the eye care professional to examine different layers and structures of the eye with precision and control.\n- Filter Capabilities: Slit lamps often have filter options to enhance the examination process. Filters can be used to selectively highlight specific characteristics or to modify the color of the light, aiding in the detection and evaluation of certain eye conditions.\n- Light Source: Modern slit lamps typically use advanced light sources such as halogen bulbs or LEDs. These provide bright and focused illumination for optimal visualization of the eye structures. LED light sources are becoming increasingly popular due to their energy efficiency and longer lifespan.","domain":"optical_engineering"}
{"url":"https://mycampus.imp.fu-berlin.de/mvs2/evento/vv/course/546678","date":"2023-09-27T11:54:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510297.25/warc/CC-MAIN-20230927103312-20230927133312-00787.warc.gz","language_score":0.7261825799942017,"token_count":226,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__59881866","lang":"en","text":"Introduction (history, classification of magneto-optic effects),\nBasics of solid-state optics (Maxwell’s equations in material and complex optical quantities, Fresnel’s equations, polarization states and sign convention),\nClassical theory of dispersion (Lorentz theory of absorption and dispersion, microwave cyclotron resonance, magnetic-field induced splitting of the reflectivity minimum, relation between experimental quantities and optical conductivity tensor),\nMicroscopic model (Becquerel’s equation, Kramers-Kronig relation, origin of spin-orbit interaction, quantum mechanical calculation of the optical conductivity, model for the microscopic origin of magneto-optic activity),\nMagneto-optic properties of magnetic semiconductors,\nRelationship between magnetism and magneto-optics.\n1.1.26 Seminarraum E1\nwöchentlich, ab 14.10.2019, 10:00 - 12:00 (16 Termine)","domain":"optical_engineering"}
{"url":"http://keerthiservice.com/eye-protection-glasses.html","date":"2019-10-14T16:24:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986653876.31/warc/CC-MAIN-20191014150930-20191014174430-00451.warc.gz","language_score":0.8861562013626099,"token_count":343,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__10857985","lang":"en","text":"People who are working in the factories, laboratories or even in the industries are exposed to a various type of risks such as chemical, radiation and unclean environments. It is always crucial for the management or owner to safeguard the workers safety from those unexpectable hazards while dealing with machineries and other critical works.\nThe possible eye hazards at work\nProtecting eyes at the workplace is much required when the upcoming possible eye hazards are occur:\n- Projectiles like dust, metal and other concrete particles\n- Due to chemical splashes and fumes\n- High radiation at the workplaces such as visible light, heat, infrared radiation & lasers\nPlaces where the risk of eye hazards occur highly\n- Auto Repair\nHow will Keerthi Enterprises Protect Your Eyes from Unexpectable Injuries\nAt Keerthi Enterprises, we believe that safety is not compromisable, so the quality of the safety eyewear equipments and glasses are always in high quality at unmatchable prices.\n- Safety Spectacles\n- Visors Faceshields\n- Welding Shields\nAlso its advisable to choose the special needed safety eye glasses, googles and face shields depends on the working condition.\nYou must use special-purpose safety glasses, goggles, face shields or helmets designed for that task.\nAdvantages of Keerthi Safety Eyewears\n- Polycarbonate lens meets impact test requirements\n- 99% UV protection to safeguard against harmful rays\n- Clear inbuilt nose bridge to provide snug fit\n- Available in different styles to suit individual needs\n- Flexible frame for fitting marjority of face sizes\n- Clear hard coated finish on lens for durability","domain":"optical_engineering"}
{"url":"http://bodorlaser.ru/News/117.html","date":"2017-11-25T07:28:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934809695.97/warc/CC-MAIN-20171125071427-20171125091427-00094.warc.gz","language_score":0.9383360743522644,"token_count":598,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__14204597","lang":"en","text":"Relationship between laser cutting machine and daily life\nDuring the Spring Festival, relatives and friends often asked my job, I said is engaged in and laser cutting machine related work, they don't know laser equipment, but do not know what role these devices, today to say in detail about the application of laser equipment.\nNot engaged in with the production and processing of the person concerned may rarely come into contact with laser equipment, in fact, laser machining, laser equipment are and our way of life is closely related to, such as mobile phone shell text, logo, computer keyboard characters, metal sculpture, automotive parts cutting welding, aerospace manufacturing, high iron production, aircraft manufacturing, etc. are and laser processing related, it can be said, laser equipment deep into life. It can not only help you make money, and able to feed tens of thousands of employees, improve the quality of life.\nLaser equipment to improve the quality of daily life\nDaily life: electromagnetic oven, TV, computers, refrigerators, washing machines and other household appliances, kitchen, frying pan, bottles and other tools, these things on the brand logo, text description, performance, bar code, such as, now almost all laser hit marking machine playing up, laser marking both beautiful and not easy to be worn before traditional printing ink or paper paste label already out of date.\nLaser equipment to change the way people travel\nHuman history of thousands of years of history tells us that human beings from the limbs to walk to walk upright, and then to travel to travel, to prove that science and technology has been promoting the development of human civilization. We usually see the car, train, subway, high-speed rail, ships, aircraft, and even spacecraft are inseparable from the laser equipment, in manufacturing need laser marking machine marking parts, coding, text and other, need laser cutting machine frame, steel plate, glass, doors, plastic and other, requiring laser welding machine welding frame, windows and doors, engine, a cylinder, a sensor, 3D laser precision measuring machine for measuring the engine, the size of the components. If there is no laser equipment, manufacturing cars, high-speed rail, aircraft will not be able to talk about, it is estimated that we are still upright walking, walking oh.\nLaser technology to improve production efficiency\nLaser device in electronic manufacturing, automobile manufacturing, food and pharmaceutical packaging, precision instruments, jewelry and other hundreds of manufacturing industry has been widely used, the laser device can rapidly improve production efficiency, improve the quality of the products, manufacturers to reduce costs and earn more money, this is the traditional production and processing equipment and incomparable advantages.\nLaser equipment, there are many places is, of course, and our life, such as a variety of medical beauty, laser weapons, information and communication technology, laser TV industry or product need laser technology, it can be said, our life has been \"laser\" rule.","domain":"optical_engineering"}
{"url":"https://tikispaceshipearth.com/2018/11/12/the-suns-spectrum/","date":"2023-06-06T12:33:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652569.73/warc/CC-MAIN-20230606114156-20230606144156-00204.warc.gz","language_score":0.9485127329826355,"token_count":593,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__82876873","lang":"en","text":"The Sun’s Spectrum\nI’ve been thinking about this poster down the hall from me. Its pretty, but its information about the sun is pretty spectacular. To really understand it, you have to go back to the basics about light. We can only see light within a certain range of wavelengths and frequency. This range is called the visible spectrum. Here is what this looks like in pretty picture form:\nWhat’s a basic way to study light? Well, don’t stare at light and hurt your eyes. Please. A better method is spectroscopy – which spreads a light source out. You could use a prism for this. As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers. If the light doesn’t pass through any low-density gas, the spectrum shows no features and is considered a “continuous spectrum”.\nIf the light however passes through a cool “cloud” of gas, that “cloud” can absorb particular wavelengths and we can an adsorption spectrum. If you don’t have a prism, you could instead use an imaging Fourier transform spectrograph (IFTS). You probably have one in the telescope you live in on top of that mountain right? A spectrograph is an instrument that separates incoming light by its wavelength or frequency and records the resulting spectrum in some kind of a detector. This device will produce a spectrum that features spectral lines. The appearance of spectral lines is caused by atoms and molecules in a material that the light is passing through. Those atoms and moelecules both emit and absorb radiation at distinct wavelengths.\nAbsorption lines will appear when there is a hot light source (like our Sun) passing through an intra-meaning cool material (like gas). The radiation is absorbed by the cooler gas causing the lines (or reduction in intensity corresponding to the spectral transitions of the elements in that gas).\nFor most elements, there is a certain temperature at which their emission and absorption lines are strongest. The lines you see in a star’s spectrum act like thermometers.\nThis picture below looks like its the poster down the hall from me, but upon close inspection, its actually different. The same scientist, Bob Kurucz involved with the original poster made a version 2. This spectrum below was taken through the atmosphere, through oxygen and water lines in addition to the solar lines.\nIn the spectrum on the wall, he has removed the O2 and H2O lines so the spectrum looks the way it would appear above the atmosphere. It is the way the sun would look from a planet or another star. And here is the poster I get to see every day.","domain":"optical_engineering"}
{"url":"https://www.glintlighting.com/post/hero-wins-brightstar-2022","date":"2024-03-02T17:46:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475833.51/warc/CC-MAIN-20240302152131-20240302182131-00698.warc.gz","language_score":0.8969029784202576,"token_count":155,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__137885762","lang":"en","text":"Glint wins Brightstar 2022\nGlint is honored and proud to receive a Brightstar Award from LEDs Magazine for our newly released Hero Recessed with PureBeam. Hero Recessed brings the incredible photometric performance of Hero into the ceiling with the world's first and only fully-adjustable recessed linear luminaire. PureBeam delivers consistently perfect photometrics at every beam angle and throw for revolutionary simplicity in lighting design. Stay tuned for more information on the exciting new capabilities!\nJanuary 16, 2024Glint releases Epic\nOctober 30, 2023Glint releases 4 new products!\nSeptember 11, 2023ISTED Technical Sales to represent Glint in Saskatchewan and Manitoba\nAugust 25, 2023JRC and Lumen FX to represent Glint","domain":"optical_engineering"}
{"url":"http://www.merckmanuals.com/home/eye-disorders/refractive-disorders/corrective-lenses","date":"2016-05-30T05:04:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-22/segments/1464049288709.66/warc/CC-MAIN-20160524002128-00232-ip-10-185-217-139.ec2.internal.warc.gz","language_score":0.9347853660583496,"token_count":1433,"dump":"CC-MAIN-2016-22","global_id":"webtext-fineweb__CC-MAIN-2016-22__0__43837991","lang":"en","text":"* This is the Consumer Version. *\nRefractive errors can be corrected with glass or plastic lenses mounted in a frame (eyeglasses) or with a small lens made of plastic floating on the cornea (contact lens). Good vision correction is possible with both eyeglasses and contact lenses. For most people, the choice is a matter of appearance, convenience, cost, risk, and comfort.\nPlastic lenses for eyeglasses are lighter but are more likely to scratch. Glass lenses are more durable but are more likely to break, potentially causing injury. Plastic lenses are more commonly used because they are thinner and can also be coated with a substance that helps them resist scratches. Both glass and plastic lenses can be tinted or treated with a chemical that darkens them automatically when exposed to light. Lenses can also be coated to reduce the amount of potentially damaging ultraviolet light that reaches the eye.\nBifocals contain two lenses—an upper lens that corrects the view of distant objects and a lower lens that corrects the view of nearby objects, such as reading material. However, people also need to focus at middle distances, such as when viewing a computer screen. Trifocals meet this need by adding a lens for middle distance. Continuously variable lenses (progressive add lenses) also permit focusing at middle distances and have a cosmetic advantage in that there is no line or sharp division between the regions of the eyeglass lens.\nMany people think contact lenses are more attractive than eyeglasses, and some think that vision is more natural with contact lenses. However, contact lenses require more care than eyeglasses, and rarely, they can damage the eye. Some people, particularly older people and people with arthritis, may have trouble handling contact lenses and placing them in their eyes.\nContact lenses may provide better visual acuity and peripheral vision than do eyeglasses. Contact lenses can correct nearsightedness, farsightedness, astigmatism, anisometropia, aphakia after removal of a cataract, and keratoconus (a cone-shaped cornea—see page Keratoconus). Either soft or rigid (hard) contact lenses are used to correct nearsightedness and farsightedness. Soft toric lenses or rigid contact lenses can often correct astigmatism, but require expert fitting. Presbyopia can also be corrected with contact lenses. In one approach, called monovision, one eye is corrected for reading and the other is corrected for distance vision. However, some people have difficulty adjusting to monovision.\nNeither rigid nor soft contact lenses offer the eyes the protection against a blunt or sharp injury that eyeglasses do.\nRigid contact lenses, which are usually gas-permeable, are thin disks made of hard plastic. They are smaller than soft contact lenses and cover only part of the cornea. Oxygen, which the cornea needs to function properly, does not pass easily through the plastic of the older style hard contact lenses. Gas-permeable contact lenses (GPCLs), which are made of plastics such as newer silicone compounds, permit more oxygen to reach the cornea. Rigid contact lenses can be used to correct nearsightedness, farsightedness, and irregularities in the cornea (astigmatism and keratoconus).\nGPCLs can be designed to fit the eye exactly. They usually require some time for the eye to adapt to their presence and need to be worn for about 4 to 7 days before they feel comfortable for a prolonged period. The contact lenses are worn for a gradually increasing number of hours each day. Although rigid contact lenses may be uncomfortable at first, they should not be painful. Pain usually indicates an improper fit. People who wear GPCLs usually have temporary (less than 2 hours) blurred vision when they put eyeglasses on after removing the contact lenses. Vision with rigid contact lenses is usually sharper than vision with soft contact lenses, particularly in people with astigmatism.\nSoft hydrophilic (water-absorbing) contact lenses are made of flexible plastics and are 30 to 79% water. They are larger than rigid contact lenses and cover the entire cornea. Soft contact lenses can be used to correct nearsightedness, farsightedness, and sometimes astigmatism. Not all soft contact lenses allow oxygen to reach the cornea easily.\nBecause they are larger, soft contact lenses are less likely than rigid contact lenses to fall out or to allow dust and other particles to get trapped underneath. In addition, soft contact lenses are usually comfortable from the first wearing. Soft contact lenses require scrupulous care to prevent problems, because the risk of infection is higher with soft contact lenses than with rigid contact lenses. When dry, soft contact lenses are brittle and break easily.\nContact lenses should be removed and cleaned every day using a contact lens disinfecting solution. Tap water should never be used, particularly to clean soft or gas-permeable contact lenses. After cleaning, all contact lenses should be stored in a disinfectant solution in a contact lens case overnight. After the lenses are inserted the next day, 100% of the disinfectant solution should be removed from the lens case. The lens case is then allowed to dry by leaving it open to the air. The lens case should be replaced every 1 to 2 months. Some contact lenses require weekly treatment with an enzyme cleaner. Daily disposable contact lenses are discarded after a day of use. Some regular or disposable soft contact lenses are designed so that they may be kept in the eye during sleep for a number of days (extended wear). Most can be kept in place for up to 7 days, but newer contact lenses are available that can be kept in place for up to 30 days. However, the risk of infection is higher with contact lenses that are worn overnight. Therefore, it is best to remove contact lenses before going to sleep.\nWearing contact lenses poses a risk of serious, vision-threatening, painful complications, including the formation of ulcers on the cornea. Ulcers can be caused by bacteria, viruses, fungi, or amoebas and can cause loss of vision (see page Corneal Ulcer). The risks can be greatly reduced by following the eye doctor's instructions and using common sense.\nThe risk of serious infections increases when people swim or shower while wearing their contact lenses and clean their lenses with homemade saline solution, saliva, tap water, or distilled water. Sleeping while wearing any type of contact lens also increases the risk of serious infections. The risk of infection increases for every night a person sleeps in soft contact lenses. The best way to reduce the risk of infection is to not sleep in contact lenses. If a person has intense eye pain, excessive watering of the eye, pain with exposure to light, vision changes, or eye redness, the contact lenses should be removed immediately. If the symptoms do not resolve quickly, the person should contact an eye doctor.\n* This is the Consumer Version. *","domain":"optical_engineering"}
{"url":"http://www.awdi.nyc/commercial-glass/architectural-glass-units","date":"2022-07-06T13:08:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104672585.89/warc/CC-MAIN-20220706121103-20220706151103-00634.warc.gz","language_score":0.9203987121582031,"token_count":508,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__91534799","lang":"en","text":"Architectural glass units\nTypes of architectural glass units:\nSuch glass has a special coating which gives the glass an ability to reflect thermal radiation. It promotes reduction of glass unit thermal conductivity. In cold climatic zones such glass units preserve the warmth of indoor space produced by inner lighting and heat devices. In hot climatic zones these glass units reduce the transmission of outer heat into the room. The following types of glass have energy saving characteristics:\n- k-glass (“hard glass”) - low emissivity glass that is resistant to outer exposure. It has pyrolytic coating which is produced by the chemical reaction with high heat.\n- i-glass (“soft glass”) – low emissivity glass with a selective layer applied by the method of cathodic spraying in vacuum. Energy saving coating of this type isn’t resistant to outer exposure and therefore can be used only in glass units (with the coating on the inner surface). I-glass has a higher level of heat insulation than k-glass.\nReflective glass has a coating that restricts the transmission of sun heat into the room but doesn’t influence maximal amount of natural lighting. That said, during the daytime one can observe the mirror-like effect from outside and the toned effect from inside. During the night optical features of the glass are inverted, so with the inner lighting on the mirror-like effect is observed inside the room. In other words, reflective glass reflects the light to the direction where there is more light.\nThis type of glass reduces transmission of light in both directions without mirror-like effect and is installed to a glass unit from the outer surface.\nTriplex is a composition of two and more pieces of glass glued together with a special tape. It provides the construction with extra durability towards mechanical destruction. When damaged, the glass of triplex cracks but doesn’t fall to pieces because the shatters stick to the tape.\nTriplex is characterized with a higher degree ofsound insulation in comparison with regular glass of the same thickness.\nDecorative glass units:\nThe possibility to use bended architectural glass allows architects create impressive buildings and constructions.\nIn addition to regular bended float glass there are bended tempered glass, bended triplex, bended multilayer glass with tempered layers and bended glass units.","domain":"optical_engineering"}
{"url":"https://gcbiotech.com/ufaqs/260280-ratio-mean/","date":"2020-09-30T01:59:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402101163.62/warc/CC-MAIN-20200930013009-20200930043009-00544.warc.gz","language_score":0.9349086880683899,"token_count":134,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__193893312","lang":"en","text":"260/280 ratio is a potential measurement for the detection and quantify of DNA / RNA.\nThe ratio of absorbance at 260 nm and 280 nm is used to assess the purity of DNA and RNA extractions. That is because Nucleic acids shows the highest absorbance generation/highest UV radiation absorbance at 260 nm and maxima at 280 nm.\nIt can also be used to check whether its contaminated.\nA 260/280 ratio between 1.8 – 2.0 is generally accepted as “pure” DNA/RNA.\nIf the ratio is below 1.8 then it can indicate the presentence of proteins or phenyl contamination.","domain":"optical_engineering"}
{"url":"https://buyitem.lk/product/godox-led308c-ii-led-video-studio-light/?v=2c16b194a0d9","date":"2023-12-03T07:21:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100489.16/warc/CC-MAIN-20231203062445-20231203092445-00470.warc.gz","language_score":0.8042885065078735,"token_count":280,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__288681612","lang":"en","text":"Godox LED308C II LED Video Studio Light\nGodox LED308C II LED Video Light is a powerful source of continuous, consistent light, excellent for macro photography, product shoots, photojournalistic and video recording, etc. The lightweight and portable light provide high brightness and accurate color.\nGodox LED308C II LED Video Studio Light Product Features\n- Built-in 308 Premium LED Beads of high brightness\n- Large-sized, concise and modern LCD Panel and auto memory function\n- Outfitted with wireless remote control to respectively adjust brightness and color temperature of groups A/B/C/D/E/F\n- 16 channels to prevent interruption\n- Power supply by Lithium Battery or DC\n- Various ways to use: LED308 Video Light can be mounted on the camera hot shoe, light stand, mini stand etc. or you can just handle it\n- Adjust LED light angle flexibly\n- 1 x LED-308C Video Light\n- 1 x Handle\n- 1 x Mini Stand\n- 1 x Diffusion Filter (White)\n- 1 x User Manual\n- Please read the product description, product specifications for make sure the product meet your requirement.\n- Also we recommending to watch product review in YouTube.\n- See our more Godox Products to Click here.\n- See This Product in Godox Official Site Click Here.","domain":"optical_engineering"}
{"url":"https://unitix.ca/2020-best-professional-laser-hair-removal-equipment/","date":"2023-11-29T12:59:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100081.47/warc/CC-MAIN-20231129105306-20231129135306-00395.warc.gz","language_score":0.9333994388580322,"token_count":1972,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__15345943","lang":"en","text":"2020 BEST PROFESSIONAL LASER HAIR REMOVAL EQUIPMENT\nFinding the best professional laser hair removal equipment can be a challenge as there are a lot of different devices. Sorting through all the different manufacturers and models adds up to a long list of equipment. This article will sort through all the different types of technology and teach everything you need to know about professional laser hair removal equipment. Lastly you will learn what device is the best professional laser hair removal equipment for your business. You will be a more educated buyer and you will be able to make the best decision for your business.\nThere are 3 gold standard laser wavelengths used for hair removal:\n- 755 nm Alexandrite laser\n- 805 nm or 810 nm Diode laser\n- 1064 nm Nd:Yag laser\nWhen sorting through different lasers it’s important to recognize that these 3 laser wavelengths are the only types of lasers that are used for hair removal. As there are lots of different types of laser available, the specific technology used for professional laser hair removal equipment is a long pulsed laser. This means the time the laser “rests” on the skin is longer, but in relation to 1 second it is still very fast. The laser rests on the skin in a fraction of a second but is still longer than a Q switch laser. A Q switch laser is used for tattoo removal and operates in a shorter resting time than a long pulsed laser used for hair removal.\nDiode Bar Technology Vs. Fiber Delivery With Interchangeable Spot Size:\nAll professional laser hair removal equipment uses a hand piece which emits the laser onto the skin. It is important to know the difference between hand piece technology. Diode lasers use hand piece tip to skin contact while using clear ultrasound gel as a medium. Clear ultrasound gel helps the hand piece glide across the skin and keep the skin cool as the cool diode tip emits chilling technology for comfort. The downside with diode lasers is that many passes are required to achieve a successful treatment. Additionally, some may view working with clear ultrasound gel as messy. Diode lasers are affordable professional laser hair removal equipment that can take non-stop use all day.\nSometimes professional laser hair removal equipment that uses diode technology will have multiple wavelengths such as 755 nm Alexandrite and 1064 nm Nd:Yag in the same device. This is not common but does exist, the downside is the use of laser bar technology which typically equates to a lower beam quality compared to a device designed with fiber delivery. Professional laser hair removal equipment designed with fiber delivery is considered a higher end device because the manufacturing cost is higher and equates to better laser beam delivery. When producing better beam delivery you will receive better results. A fiber is essentially a glass like cord that is connected to optics which produce a laser beam from a laser rod. Professional laser hair removal equipment that is designed with fiber delivery also will have different spot sizes allowing for a more precise laser hair removal experience. The benefit of a professional laser hair removal device designed with fiber delivery is a 1 pass treatment equating to shorter treatment times and without the need for clear ultrasound gel.\nWhat Chromophores Do Lasers Absorb and Why Is This Important?\nLasers absorb 3 main components of skin which are oxyhemoglobin, water, and melanin. Most important to professional laser hair removal equipment is the amount of melanin each laser wavelength absorbs. This is very important when treating dark complected skin because melanin count is much higher in skin types 4, 5, and 6. Hair contains melanin and the process of laser hair removal is the laser is attracted to the melanin in the hair and absorbs that component. When treating darker skin tones, a laser wavelength must absorb enough melanin to be effective but not so much that it will cause burning or loss of pigmentation to the skin, this is because the laser absorbs MELANIN. When deciding what professional hair removal equipment is best for your business, it’s important to understand these 3 components.\nWhat Laser Wavelengths Are Best For All Skin Types?\nWhen determining what professional laser hair removal equipment is best for your business it’s important to recognize what skin types you will be seeing in your business. Not all laser wavelengths are good for all skin types.\n755 nm Alexandrite\nHas very high absorption of melanin meaning it is not good for skin types 4, 5, and 6. But, it is most appropriate for skin types 1, 2, and 3 and is an extremely effective laser wavelength for hair removal.\n805 nm or 810 nm Diode\nHas a medium absorption of melanin and a nice safety profile for all skin types. This laser wavelength has a slightly lower absorption of melanin compared to a 755 nm Alexandrite which makes it safer on darker skin tones. Typically, to effectively target hair on darker skin with a diode the operator will need to turn down the energy causing a less effective treatment. When treating individuals with darker skin types will typically see a greater number of treatments due to lower energy treatments to maintain a safe treatment.\n1064 nm Nd:Yag\nCompared to the other wavelengths the 1064 nm Nd:Yag laser or also called a Yag is the safest laser wavelength for dark skin and is considered the gold standard wavelength for skin types 4, 5, and 6. The laser is effective on all skin types but not preferable for skin types 1, 2, and 3.\nRepair & Servicing Professional Laser Hair Removal Equipment\nAfter purchasing your professional laser hair removal equipment and running treatments, occasionally your laser will need repairs or service. Receiving high quality service and affordable repairs are extremely important. Most laser service companies can charge up to $20,000 per year for a service contract. MedLaser USA offers affordable service and options for warranties on their equipment. Additionally, MedLaser USA offers replacement parts that are a fraction of the cost as competitors. Some lasers have disposable components and it’s important to ask questions to uncover what devices have disposables. Another important aspect is understanding life expectancy of parts, specifically hand pieces. Diode hand pieces can last from a few million pulses up to 10 million.\nPrices Of Professional Laser Hair Removal Equipment\nIt is a fact that all cosmetic lasers and professional laser hair removal equipment is expensive. Commercial grade lasers that you would find in a medical spa, plastic surgery office, or dermatology clinic are built to perform with high quality parts. Quality professional laser hair removal equipment can range from $30,000 and upward of $200,000. The best type of laser for hair removal is a combination of alexandrite and nd:yag with fiber delivery. This is because of the premium beam technology, premium results, and quality of equipment. Alexandrite & Yag lasers typically cost $85,000-$200,000. Lower end professional laser hair removal equipment would be diode laser technology and prices can range anywhere from $30,000-$75,000. You get what you pay for in relation to quality, price, warranties, and service. Determining your budget if you’re purchasing with cash or determining a monthly payment budget if you’re financing or leasing is going to help you determine your best options.\nFinancing or Leasing Professional Laser Hair Removal Equipment\nIf you’re planning on financing or leasing your cosmetic laser for hair removal then understanding a little about the process is going to be beneficial. There are 2 types of monthly payment options, financing or leasing. Financing is when you make your last payment you own your device at the end of your term. Leasing is when you return your equipment at the end of your term but you would still have a variable buyout amount at the end of your term. Regardless if you’re leasing or financing, you’re still going to me making a sizable monthly payment and it is always best to own your equipment at the end of your term. Typically, terms will consist of 36 months, 48 months, or 60 months. Your exact monthly payment will depend on a review of your credit, time in business, and your financial health of your business. New businesses end up with higher interest rates or higher monthly payments because new businesses pose a greater risk. The financing or leasing process is a very simple process and typically requires a 1 page credit application and your last 3 months business bank statements. MedLaser USA specializes in offering affordable leasing and financing options for all new and used professional laser hair removal equipment.\nThe Dual Accento Laser Is The Best Professional Laser Hair Removal Equipment\nThe best professional laser hair removal equipment is the Dual Accento laser. As discussed in this article the best laser wavelengths are 755 nm alexandrite and 1064 Nd:Yag. These laser wavelengths are the best because they provide premium beam technology and laser hair removal treatments for all skin types. The Dual Accento has both 755 nm Alexandrite and 1064 nm Nd:Yag in 1 device and also offers a long list of treatments besides just laser hair removal making the Dual Accento a multi-function professional laser hair removal equipment.\nThe Dual Accento is also reasonably priced compared to other devices with similar technology providing substantial cost savings. The Dual Accento has lots of features such as spot sizes from 2mm – 20mm, cold cryo spray for comfortable treatments, easy to use touch screen for easy operation, and fast speed to allow for fast treatment times. These details are why the Dual Accento laser is the best professional laser hair removal equipment in the entire laser market.\nWritten by: MedLaser USA","domain":"optical_engineering"}
{"url":"https://www.macrodojo.com/product/laowa-15mm-f-4-11-wide-angle-macro-shift/","date":"2024-04-24T03:34:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818999.68/warc/CC-MAIN-20240424014618-20240424044618-00190.warc.gz","language_score":0.8703532814979553,"token_count":739,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__19221620","lang":"en","text":"World’s Widest 1:1 Macro Lens\nFeaturing an ultra-wide 110 degrees angle of view of with 1:1 maximum magnification, allowing users to focus very close to the subject but at the same time, include the background details (where and how the subject lives) into the photo. Added with a +/- 6mm feature, this lens is an ultimate creative tool for both landscape, macro and architectural shooting.\nSuperb Optical Performance from Infinity Focus to 1:1 Magnification\nThe new Laowa 15mm f/4 1:1 Macro lens is the first lens in the market which possesses an ultra-wide angle of view and 1:1 Macro ability. This allows photographers from around the world to start experiencing the rather undeveloped field of ‘Wide Angle Macro Photography’ without using an extension tube. Macro Lenses currently in the market tends to have a mid to long focal length and it limits users to take very close-up shots on the insect or flowers, without showing much of the background details like its habitat or environment.\nThe new Laowa 15mm f/4 1:1 Macro lens features an ultra-wide angle of view of 110 degrees with 1:1 maximum magnification. Photographers can focus very close to the subject and let the foreground dominate in the photo but at the same time, have the background telling viewers about where and how the subject lives. Your picture will immediately become very informative and intriguing. Every piece of glass is coated with an anti-reflective coating to prevent any flares and ghosting.\n+/- 6mm Shift Function\nThe lens can also serve as an excellent ultra-wide angle lens with infinity focus for cameras with full frame sensors. A shift mechanism is added at the rear end of the lens with a maximum adjustment of +/- 6mm for APS-C cameras, which is extremely useful for landscape/architecture photography for distortion correction.\nThe lens houses with 12 elements in 9 groups with 3 pieces of High Refractive elements and 1 piece of Extra-low dispersion elements to deliver crystal sharpness both in the center and the edge. Barrel Distortion was also carefully controlled. 14 pieces of aperture blades form a close-to-circular aperture, capable of creating creamy shallow depth of view. The enclosure of the lens is made of metal to strengthen its durability. Canon EF, Nikon F, Sony A, Sony FE and Pentax K mounts are available.\nSample Photos from this Lens\n“Giant” Fungi (CA corrected) ©2015 Nicky Bay\nMalayan horned frog (Megophrys nasuta) ©2015 Nicky Bay\nSnail with Marina Bay Sands in the background ©2015 Nicky Bay\nVenus Optics LAOWA 15mm Wide Angle 1:1 Macro Lens Review\nReview of Venus LAOWA 15mm Wide Angle Macro Lens Part II\nAwards & Recognitions\n|Angle of View\n|12 elements in 9 groups\n|Min. Focusing Distance\n|84 x 64mm\n|Canon EF / Nikon F / Sony A / Pentax K / Sony E","domain":"optical_engineering"}
{"url":"https://cosmedic-supplies.co.uk/products/led-headband-magnifier","date":"2024-04-24T04:05:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818999.68/warc/CC-MAIN-20240424014618-20240424044618-00557.warc.gz","language_score":0.8601693511009216,"token_count":234,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__130542603","lang":"en","text":"Led Headband Magnifier\nName: Led Headband Magnifier\nModel Number: CTA048-1\n1、The surface of the lens is strengthened, and the hardness reaches H5 degree.\n2、The movable lens slot is used to adjust the focal length of the lens and the object and the distance between the lens and the eye.\n3、The lens part and bracket part are made of inner and outer teeth.\n4、The nose bracket is made of stainless steel and soft rubber for two times.\n5、The battery capacity is large and can be used for 20 hours.\n6、Adjustable lens angle and LED light source angle of illumination\n7、This product solves the problem very well that the lens and the LED light source are relatively heavy, it is easy to fall off at work.\nDPD & Royal Mail Available\nAll orders completed before 3pm on a working day will be dispatched the same day\nWe offer free UK delivery on all orders over £50\nAdd some Industry Favourites","domain":"optical_engineering"}
{"url":"https://jzyled.en.made-in-china.com/","date":"2019-09-20T16:11:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514574050.69/warc/CC-MAIN-20190920155311-20190920181311-00542.warc.gz","language_score":0.7972004413604736,"token_count":293,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__73550735","lang":"en","text":"LED Module, LED Strip Light, LED Bulb Light manufacturer / supplier in China, offering 12V SMD 5050 60LEDs Red+Blue LED Strip Grow Lights, 5V USB Powered SMD 5050 RGB Color TV LG Backlight LED Strip, DC 12V 3 Chips SMD 5050 5054 Waterproof LED Epoxy Module and so on.\n|Main Products:||LED Module , LED Strip Light , LED Bulb Light , LED Corn Light , LED Pixel Light , LED Tube , ...|\n|Registered Capital:||5000000 RMB|\n|Main Markets:||North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern ...|\n|Average Lead Time:||\nPeak season lead time: within 15 workdays\nOff season lead time: within 15 workdays\n|International Commercial Terms(Incoterms):||FOB, EXW|\nShenzhen Junzhiyang Technology Co., Ltd. is a professional production and sales of LED lighting products, Equipped with advanced production line, rich in production experience and with good quality and high appreciated by customers.\nOur main products have LED strips, LED module, LED bulb, LED candle light, LED corn light, LED ceiling light, LED spotlights, LED pixel light, Great wall LED strip, LED tube, LED panel light, power supply, controller, and other LED lighting.\nOur products are super ...","domain":"optical_engineering"}
{"url":"http://www.digitalscreenprinting.com/computertoscreen","date":"2019-10-14T20:12:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986655310.17/warc/CC-MAIN-20191014200522-20191014224022-00557.warc.gz","language_score":0.8687708377838135,"token_count":341,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__148143330","lang":"en","text":"5080 and 10160 dpi\nfineLine directLaser! — powered by Lüscher Technologies — is the digital vertical image setter for direct screen imaging that provides large format screen printing with unique advantages. The vertical machine version operates with exactly the same high-powered UV direct laser diode light source, the identical fiber-coupled laser diodes and the same high-quality Swiss made optics as the smaller flatbed models.\nWith sizes of up to 10 x 20 ft (3 x 6 meters), the model series VT is available with resolutions of 600, 1200 or 2400 dpi and can be equipped with up to 128 laser diodes. The modular machine design allows for future productivity upgrades by adding groups of 16 laser diodes to an initial image head design. The vertical fineLine directLaser! machines are ready for inline processing configurations that include loading and off-loading magazines, developing and other processes.\nOur industry leading equipment and laser diode warranties together with insurance coverage for the life of the equipment provide the lowest ownership cost available. 2,000 direct laser systems installed worldwide, equipped with more than 80,000 laser diodes in daily operation, prove that our imaging technology has come of age.\n|Model||Machine & Screen Frame Size||Resoution dpi|\n|Flatbed||up to 57” x 59” (1.45 x 1.50m)||1,270 - 10,160|\n|Vertical||51” x 63” (1.3 x 1.6m) — 10 x 20ft (6 x 12m)||600 - 2,400|","domain":"optical_engineering"}
{"url":"https://thebestfishinglights.com/collections/mako-aquadynamic-underwater-seeker-led-boat-lights/products/blue-10-000-lumen-transom-light-bar-set-color-blue","date":"2021-01-16T20:03:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703507045.10/warc/CC-MAIN-20210116195918-20210116225918-00254.warc.gz","language_score":0.9066413640975952,"token_count":510,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__32440887","lang":"en","text":"The TB11 is a power house of light. Boasting 10,000 actual lumens of output. Guaranteed to get noticed from the penetrating glow around your boat. Suitable for midsize to large boats.\n12v-14.4v ( alternator safe )\nUV High Impact solid core\n6ft Power Leads\n3 independent Waterproof layers\n3yr No Questions asked Replacement Warranty\n11in x 2in x 7/8in\nLow Profile design\nEach Low Profile Light bar is made up of separate 10w LEDs that are spaced evenly for light distribution across the horizontal plane creating a flood of surface light in the water. Each Led is rate from 600-1100 Lumen each depending on the color. The TB Series light bars range from 1800-5500 manufacture rated lumen output per light bar and 3600-11,000 Lumen per set.\nOur Deep Blue LED light bars come in several sizes. Using a light spectrum of 460-480nm these lights create a deep blue color with the added UV spectrum. The deep royal blue is great for lighting up lures and giving the predator fish an advantage by increasing there vision. What you can expect to see when using the 460nm spectrum is a very active UV effect when up on plane. Due to the blue not being a highly visible color for us(humans) we can’t see the actual light as well as other colors. You can rest assured that the light is there and it’s doing it’s job. If your looking for visual effects as well as the angler advantages then I'd suggest you check these out.\nAs you can see in the picture the 460nm blue is incredibly difficult to film due to the camera being able to see the light with it’s sensor and flooding the image. This is a great example of what we cannot see.\nIf your on the hunt for blue lights to produce a visual effect behind the boat for recreational swimming etc.. I would recomend that you look at mixed bars that include the 35,000 kelvin + the 460nm led. This combo will create a stuning electric blue and will give you the best of both worlds.\nBlue Transom Lights add a UV spectrum to the area so you can count on getting that crazy glow effect while boarding!\nFor those that like to head out for overnight trips and need an extra edge on hooking up. The TB Series penetrates the water to accent any neon or UV reactive lure.","domain":"optical_engineering"}
{"url":"https://www.plexpert.ca/glossary/caliper/","date":"2024-04-19T09:03:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00094.warc.gz","language_score":0.9245659708976746,"token_count":217,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__32346502","lang":"en","text":"For a quick measurement of plastic parts, a so called caliper is used in general.\nThis distance measuring device has one stick with two outside and two inside measuring legs.\nThe top ones of the measuring legs are fixed, while the bottom ones are movable.\nAdditionally, some calipers have a measurement rod to measure the depth.\nWith outside, inside and depth-measurement more or less every tolerance of a plastic part can be checked.\nA difference in calipers can be found in how the measured values are displayed.\nThere are three different display types available:\n– Ruled scale (Vernier)\nIt has to be noted that especially for soft plastic (like TPE), a too high pressure on the movable measuring legs will distort the measured value.\nFurthermore, the measurement at small supports may lead to a tilt and hence a distortion of the measured value.\nThese are the reasons why, after the first measurement with caliper, additional measurement devices are necessary for exact measurement.","domain":"optical_engineering"}
{"url":"http://vumii.com.pl/instytucje-rzadowe/","date":"2021-03-02T20:42:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178364764.57/warc/CC-MAIN-20210302190916-20210302220916-00299.warc.gz","language_score":0.8625891208648682,"token_count":116,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__213343499","lang":"en","text":"Government and Homeland Security\nGovernment and law enforcement security professionals are choosing Vumii for night vision, wide area surveillance, threat assessment, detection and situational awareness.\nVumii’s thermal imaging and near-IR infrared camera systems are ideal for securing borders and perimeters around military bases and strategic assets.\nHow Vumii thermal cameras help government and HLS?\n- 24/7 Day & Night Surveillance and Detection Capabilities\n- All Weather Detection Capabilities\n- Low Rate of False Alarms\n- Seamless Integration to radar and VMS Systems","domain":"optical_engineering"}
{"url":"https://www.lemoledlight.com/products/metal-halide/","date":"2017-11-21T09:46:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806338.36/warc/CC-MAIN-20171121094039-20171121114039-00054.warc.gz","language_score":0.8731176257133484,"token_count":1049,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__184327316","lang":"en","text":"High light efficiency, high power, Lifespan more than the halogen lamps,High CRI.\nMetal halide lamp is a kind of light source,the color temperature close to the sun’s, widely used in the stadium, exhibition center, large shopping malls, industrial buildings, streets, square, station, wharf and other places.\nThe constrution of metal halide lamp\nThere are two kinds of metal halide lamp, one kind is quartz metal halide lamp, the electric arc tube ‘s shell is made of quartz, the other is ceramic metal halide lamp, the electric arc tube’ s shell is made of translucent alumina ceramic, metal halide lamp is one of the best electric light source in the world, it has high photosynthetic efficiency (65 ~ 140 lm/w), long life (5000 ~ 20000 h), good color rendering (Ra65 ~ 95) compact structure, stable performance, etc. It has both the advantages of fluorescent lamp, high pressure mercury lamp, high pressure sodium lamp, overcomes the defect of the lamp, metal halide lamp brings together the main advantages of gas discharge light source. Especially the high photosynthetic efficiency, long life, light color three advantages. So the development of metal halide lamp is soon, use more and more widely.In the market with other gas discharge lamp, metal halide lamp with mercury in the padding in the lamp, mercury is toxic substances, making lamp, mercury injection, careless handling, can cause to the production environment pollution, damage to workers’ health, arc tube exhaust, there are traces of mercury vapor discharge, if not handled properly, will be directly discharged into the atmosphere, when using light damage, all can cause pollution to the environment.By metal vapor (such as mercury) and halide (such as dysprosium, sodium, thallium, indium and other elements of the halide) the decomposition of mixture of radiation and glowing gas discharge lamp.Have add metal characteristic spectral lines, and light color, also increased the photosynthetic efficiency.Correlated color temperature around 4000 k of this kind of lamp, color rendering index 70, photosynthetic efficiency is more than 70 lm/W.\nMetal halide lamp products unique olive shape parameters using international advanced electric arc tube shape design, can bring about excellent light color consistency.Effectively solve the color distribution caused by light color drift phenomenon.Bracket installation without welds structure is proposed, which can prevent stent solder joint fracture caused by high temperature oxidation or oscillation, more to improve the reliability of bulb.Arc tube is not restricted by ignition point location, can realize any position of the ignition point.High luminous efficiency, 20% higher than normal metal halide lighting effect.HPl400 / ED/UP / 4 k average photosynthetic efficiency in 110 lm/w.Used on reasonable lighting circuit, electrode has better protective effect of light, can make the light more durable service life.Up to 20000 hours.High photosynthetic efficiency and long life, can reduce the engineering of the use of light source, electrical appliances and the number of lamps and lanterns, to lower the number of light bulb replacement, which reduces the overall maintenance costs.Suitable for vertical and horizontal burning fire point, vertical burning effect is better. Higher requirements are best suited for light color consistency of factory building, large stores, shopping centers, buildings, advertising, airports and other places.\nLemo Led Light Co.,LTD found in 2013,is a high-tech enterprise specializing in R&D,integrating design,production and sale of LED commercial lighting applications.We have passed ISO9001:20000 Quality System Certificates,gained several domestic and international certificates like CE,UL,EMC,GS,TUV,ETL,CCC ect. In addition,a part of our products got Patent Certificate.\nAfter years experience in LED Lighting time,we have been developed ourselves as a famous professional China Brand in this field,focusing on lighting technology research,product development,manufacturing and lighting environment design.\nLemo Led Light uphold the spirits of enterprise and principles,devote ourselves to lighting technology,and follow the strict quality control to create a comfortable and elegant charming LED lighting environment by good design capability,excellent quality and user-friendly lighting planning.\nOur main products include LED light source series,LED Strip Light,LED Track lights,LED Corn Lights series,LED Down light series,LED Panel Lights series,LED Spotlight series,LED Flood Light series,LED High Bay Light,LED Outdoor Lighting series and so on. All are widely used in star hotels,brand clothing stores,professional furniture stores,clubs,chain stores,supermarkets and so on.\nOur final goal is to make the top brand in the led lighting field,and commit to provide people with comprehensive technical support and first class after sales service system. We will do our best to develope more new designs to change people’s life quality,offer people more high efficiently and power lighting led products to satisfy people’s demands.","domain":"optical_engineering"}
{"url":"https://www.electronicsweb.com/","date":"2018-05-20T19:05:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794863684.0/warc/CC-MAIN-20180520190018-20180520210018-00376.warc.gz","language_score":0.8911393284797668,"token_count":348,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__163076998","lang":"en","text":"ProTek Devices has introduced a new series of ultra-low capacitance (0.6pF typical) transient voltage suppressor arrays for overvoltage circuit protection in smartphones and other portable electronics. The new series is also suited for Ethernet, USB interface and wireless systems\nAnalog Devices, Inc. recently announced the Power by Linear™ LTM4661, a low power step-up µModule® regulator in a 6.25mm x 6.25mm x 2.42mm BGA package\nProTek Devices has introduced two new steering diode / transient voltage suppressor arrays for electrical circuit protection in various computing interfaces, such as Gigabit Ethernet, HDMI and USB\nFISBA, a world leader in optical components and systems, will exhibit expertise in diode laser collimation & beam shaping optics at AKL Booth 52, May 2-4, 2018 in Aachen, Germany\nIOGEAR, a manufacturer of innovative information technology products for consumers and small- to medium-sized businesses, recently announced the launch of the 4K DisplayPort KVMP Switches with Dual Video Out and RS-232 (GCS1932M and GCS1934M)\nElectronic Military & Defense was developed as a resource for engineers, program managers, project managers, and other professionals involved in the design and development of electronic and electro-optic systems for a wide range of defense and aerospace applications. Check out the digital edition of our latest issue for exclusive editorial on detecting explosives with mm-Wave radars, advanced optical materials for transparent armor, simulating complicated radar cross sections, machine vision for military imaging, and more.\nSign up to receive a free copy of the 2017 edition!","domain":"optical_engineering"}
{"url":"https://www.eicma.it/en/wunderlich-lights-up-the-h-d-pan-america-1250-en/","date":"2023-10-04T18:54:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511406.34/warc/CC-MAIN-20231004184208-20231004214208-00854.warc.gz","language_score":0.9182372093200684,"token_count":164,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__174637930","lang":"en","text":"Wunderlich will also be at EICMA 2022, presenting for the occasion the new microflooter LED auxiliary headlights for the Harley-Davidson Pan America 1250. Despite having a beam four times the luminous flux of conventional auxiliary headlights, they have very low energy consumption. To be precise, we are talking about two 4000W projectors each, so a total of 8000 lumens; the lenses are marked with the Wunderlich logo and are equipped with tilting protective grilles. In addition, the two LEDs also provide redundancy: if, against the odds, one of the two fails, the other continues to work. To turn them on and off the rider can operate via an illuminated switch on the handlebar.\nVisit Wunderlich at EICMA 2022, Hall 15 Booth S48.","domain":"optical_engineering"}
{"url":"https://www.geitegoeters.com/product-page/bulb-recommended","date":"2023-11-28T16:03:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099892.46/warc/CC-MAIN-20231128151412-20231128181412-00155.warc.gz","language_score":0.913888156414032,"token_count":143,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__107944305","lang":"en","text":"Description: LED Filament bulbs look just like their traditional incandescent counterparts thanks to a unique new LED technology that allows for very small LED emitters to be arranged in a linear filament style package. These emitters are then powered using a traditional glass insulated circuit similar to that found in a traditional incandescent bulb. The end result is a bulb that functions and looks virtually identical to an incandescent. These bulbs work very well with dismoi Calabash Lights because of their very low heat distribution.\n- Low power consumption / Long Life - 25,000 hours\n- 360° Light beam angle for all over illumination\n- Save money - Reduces labour and maintenance costs\n- Easy to install","domain":"optical_engineering"}
{"url":"http://chr.ss.uci.edu/?page_id=248","date":"2017-06-27T19:02:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128321536.20/warc/CC-MAIN-20170627185115-20170627205115-00541.warc.gz","language_score":0.8993356823921204,"token_count":266,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__71673862","lang":"en","text":"► The Imaging Core of the UC Irvine Core Center for Hearing and Communication Research was established in 2007 to provide state-of-the-art technology and expertise for imaging neurons in fixed or live tissue.\nThe Core features a 2-photon imaging system that was “home-made” for greater flexibility and performance, and for significant cost savings, over commercial models.\nThe system is capable of real-time imaging with high spatial resolution.\n► Center for Hearing Research Multi-Photon Imaging Facility\n► After ~1.5 years of development and operation, the facility is functional and serving multiple users. The microscope is being used to image neurons in a variety of fixed- and live-tissue preparations, e.g., after transport of fluorescent markers or after immunofluorescent labeling.\n► Calyces of Held in fixed tissue (left) and nucleus laminaris neurons in live slice culture (right).\nKarina Cramer, Ph.D. , CHR Imaging Core\nAssociate Professor and Director, firstname.lastname@example.org\nCandace Y. Hsieh, Ph.D. , CHR Imaging Core\nAddress: 2113A McGaugh Hall\nUniversity of California, Irvine, Irvine, CA 92697\nTelephone: (949) 824 7515","domain":"optical_engineering"}
{"url":"http://www.koreaittimes.com/news/articleView.html?idxno=13957","date":"2020-01-23T19:41:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250613416.54/warc/CC-MAIN-20200123191130-20200123220130-00354.warc.gz","language_score":0.9377153515815735,"token_count":702,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__183079689","lang":"en","text":"Environmental responsibility is a significant concern for both consumers and corporations, and it is becoming increasingly important to the business-to-business companies that power the consumer electronics industry as well. Texas Advanced Optoelectronic Solutions®, Inc. (TAOS), an innovative optoelectronic sensor company, has been selected by a sustainable solutions television show to showcase its green efforts and success with improving product performance while simultaneously reducing energy consumption. TAOS, Inc. will be featured in the \"Energy Solutions\" series of \"Going Green\" with Ward Burton (www.goinggreentv.us) airing nationally and regionally throughout March and April.\n\"The going green movement has helped create worldwide acknowledgement that protecting our environment is everyone's responsibility. With our innovations in display management, ambient light-sensing has emerged as a key technology for improving energy efficiency in flat panel displays as the use of displays becomes increasingly pervasive in every aspect of our lives,\" said Jerry Koontz, director of marketing at TAOS. \"In addition to consumer electronics, TAOS' broad portfolio of light sensor products support the green movement in such market segments as industrial, automotive, medical and white goods.\nThe demand and production of flat panel displays found in high-tech electronic products is rapidly growing because they have an impact on the end-user experience through mobile phones, tablets and TVs. Flat panel displays have the highest power consumption within the total system therefore there is an increased focus on utilizing power-saving technologies and eco-friendly components in their design and manufacture. TAOS' ambient light sensing technology is used by global customers in their pursuit for reduction in energy consumption in consumer products like Sony VAIO® laptops and VIZIO HDTVs. The digital ambient light sensors used in these products automatically adjust the display brightness based on the lighting conditions, reducing the overall system power consumption by as much as 30 percent.\n\"At Sony Electronics, green has always been a huge priority across all of our operations,\" said Robert Benavent, Corporate and Environmental Group, Sony Electronics. \"In our product groups specifically, we're continuing to develop our intelligent features such as the digital ambient light sensing technology pioneered by TAOS in such products as Sony's VAIO laptops and the dashTM Personal Internet Viewer.\"\n\"In our quest for further reductions in power consumption, we are using ambient light sensors in both LED and traditional CCFL backlit LCD model HDTVs,\" said Ken Lowe, VP and co-founder of VIZIO, Inc. \"This great technology from TAOS, Inc. maintains superior picture quality while intelligently maintaining the TV's backlight so it is not overdriven when it's not necessary for the highest performance.\"\nTAOS is able to deliver state-of-the-art light-sensing solutions that minimize the system power consumption by controlling the display brightness to suit ambient light conditions and therefore increasing energy conservation. TAOS display management sensor solutions can be found in many products today such as:\n- Mobile phones\n- LCD and plasma TVs\n- LCD Monitors\n- Digital cameras/camcorders\n- Portable MP3/DVD players\n- Portables navigation devices\n- Multifunction printers\n- Digital picture frames\n- Digital/commercial/retail signage\nThe 'Going Green' series not only educates both consumers and electronics companies about TAOS, Inc.'s energy-reducing display management solutions, it also celebrates successful, sustainable solutions made by individuals and organizations.","domain":"optical_engineering"}
{"url":"https://americanart.si.edu/videos/hiram-powers-sculpture-greek-slave-playlist-153874","date":"2021-05-12T12:17:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989693.19/warc/CC-MAIN-20210512100748-20210512130748-00608.warc.gz","language_score":0.8885874152183533,"token_count":292,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__4507235","lang":"en","text":"VINCE ROSSI: I’m Vince Rossi. I work for the Digitization Program Office. I’m here today with my colleague Jonathan Blundell, and we’re 3D scanning the sculpture that you see behind me today. This is a Hiram Powers sculpture, and we’re using three different types of scanning technologies. One is a laser scanner, where we’re painting light on top of an object – on top of this object – and we’re capturing millions and millions of data points that describe the surface. That captures very high-resolution detail, but it doesn’t capture color information. We’re also using a structured light scanner, which is another handheld tool, which is slightly lower-resolution, but it also captures some color information. And then finally, we see Jon getting set up. He’s shooting photogrammetry. That’s where we use a DSLR camera, and we take photographs in such a way that we can create a 3D reconstructed model using photogrammetry algorithms.\nSo those three data sets we’re capturing have different strengths and weaknesses, and what we’re going to do is take those three different data sets and basically combine them to create one high-resolution geometric model, with accurate color information, that we will then deliver online using our 3D viewer at 3d.si.edu.","domain":"optical_engineering"}
{"url":"http://www.hep.ucl.ac.uk/pbt/wiki/Proton_Calorimetry/Experimental_Runs/2021/Apr22","date":"2021-09-23T06:19:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057417.10/warc/CC-MAIN-20210923044248-20210923074248-00380.warc.gz","language_score":0.8175601959228516,"token_count":581,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__62154424","lang":"en","text":"Proton Calorimetry/Experimental Runs/2021/Apr22\nNoise tests of UCLH beam test setup in D109/D27.\nAim: Investigate source of external electronic noise observed at UCLH by measuring dark noise in lab/office with CMOS sensor turned off/on.\n- D27 is an electronically noisy lab whereas D109 is a quieter office (though still not a perfectly shielded environment).\n- Test 2 DDC232 boards coupled to scintillator stack.\n- CMOS sensor coupled to scintillator stack on perpendicular face.\n- Both CMOS sensor daughter board and DDC232 Nexys Video board in detector enclosure.\n- In all runs, an integration time of 170us is used.\n- Video steps through individual consecutive acquisitions at frame rate shown. Each frame represents 170us in time.\n- Histogram of one photodiode also provided. Expect to see clean gaussian shape if no external noise is being picked up.\n- Signal photodiode shown for Run 14.\n- Note the absolute value of the y-scale, which differs in some clips.\nVideos and thumbnails saved in /unix/www/html/pbt/wikiData/movies/DDC232/210422\n|1||D27, CMOS on, 350pC|\n|2||D27, CMOS on, 12.5pC|\n|3||D27, CMOS off, 350pC|\n|4||D27, CMOS off, 12.5pC|\n|5||D109, CMOS on, 350pC|\n|6||D109, CMOS on, 12.5pC|\n|7||D109, CMOS off, 350pC|\n|8||D109, CMOS off, 12.5pC|\n|9||D109, CMOS on, 12.5pC. Detector housing grounded using ground pin of FPGA. Grounded using optical breadboard inside detector.|\n|10||D109, CMOS on, 12.5pC. Previous grounding seemed ineffective. Now grounded by attaching clip to metal on outside face of detector enclosure.|\n|11||D109, CMOS off, 12.5pC, grounded.|\n|12||D27, CMOS off, 12.5pC, grounded.|\n|13||D27, CMOS off, 12.5pC|\n|14||D27, CMOS off, 12.5pC, grounded, LED. LED pulse of 1MHz, 6V height and 500ns width. Injected into single scintillator sheet coupled to photodiode 16.|","domain":"optical_engineering"}
{"url":"https://www.thermalradar.com/post/what-is-a-thermal-camera","date":"2024-04-23T08:04:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818468.34/warc/CC-MAIN-20240423064231-20240423094231-00874.warc.gz","language_score":0.89009690284729,"token_count":2054,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101795497","lang":"en","text":"What is a thermal camera? It is a device that detects thermal energy to produce images even in darkness, enabling insight into unseen worlds of heat patterns. This guide breaks down how thermal cameras operate, their distinct advantages, and their practical applications across various fields.\nThermal cameras detect infrared energy and create thermal images, allowing them to operate in darkness, adverse conditions, and various weather scenarios.\nUnlike traditional cameras, thermal cameras excel in visibility and detection by minimizing false alarms caused by shadows or glares and can identify threats in complete absence of light.\nIntegrating thermal cameras with video management systems and smart analytics enhances proactive surveillance, enabling differentiation between types of threats and coordination with other security measures in complex environments.\nExploring the Basics of Thermal Imaging\nAt the heart of a thermal security camera lies the magic of thermal imaging. These advanced devices, sometimes referred to as infrared cameras, are engineered to detect heat or thermal energy and translate it into visible images. It’s a remarkable process where infrared energy, which is invisible to our eyes, is captured to create a ‘thermal image’ or ‘thermogram’.\nThe ability of thermal cameras to visualize heat allows them to operate in absolute darkness and perform under a variety of weather conditions, unveiling what would otherwise remain hidden.\nThe Science Behind Thermal Cameras\nThermal cameras offer a window into a section of the electromagnetic spectrum that eludes human perception. Every object emits infrared energy, and this emission increases with temperature. Thermal cameras work diligently within the infrared spectrum, which spans from about 1,000 nm to roughly 14,000 nm, well beyond the scope of visible light.\nIn a thermal image, the varying levels of infrared radiation, which correlate to different temperatures, are presented in various shades of grey or distinct tones or colors, painting a detailed picture of the thermal landscape..\nKey Components of a Thermal Camera\nA closer examination of a thermal camera unveils an array of specific elements optimized for detecting heat. The lens, often made from germanium or chalcogenide glasses, is a critical element that focuses infrared radiation onto the sensor, significantly influencing the resolution and clarity of thermal images.\nEnclosed within the camera’s robust housing, the thermal sensor, which can be either uncooled or cooled, is highly sensitive to thermal radiation. Together, these components form a sophisticated system that efficiently captures and processes thermal energy into a form we can understand.\nOperational Advantages Over Visible Light Cameras\nTransitioning from the visible light spectrum to the realm of infrared opens up a new dimension of surveillance capabilities. In contrast with traditional cameras, thermal ones are not dependent on light to produce images. They can capture scenes in low-light conditions or in the complete absence of light, operating independently of artificial lighting sources.\nDay or night, these cameras can yield high-contrast images virtually unaffected by shifts in daylight or glaring light, giving them an edge in visibility and range compared to their visible-light counterparts.\nSeeing Beyond the Visible Spectrum\nThermal cameras, also known as thermal imaging cameras, possess the extraordinary ability to see what is typically invisible. By capturing subtle variances in heat rather than relying on light, these cameras are capable of functioning in total darkness, or through conditions like smoke. The performance of these cameras is minimally impacted by weather conditions like light fog, rain, or snow due to their reliance on heat detection rather than visual signals.\nEven amidst the challenges posed by rain, which can scatter and obscure infrared signals, thermal cameras maintain their upper hand over traditional cameras that depend on visible light.\nEnhanced Detection Capabilities\nOne of the most significant benefits of thermal cameras is their capacity to enhance surveillance by minimizing the false alarms that often plague traditional cameras. Shadows, glares, and other innocuous movements can trigger false alerts, but thermal imaging is adept at distinguishing between these and actual threats.\nThis reliable detection capability empowers security personnel to focus on genuine concerns, ensuring that attention is directed where it’s most needed.\nApplications of Thermal Security Cameras\nThe uses of thermal security cameras range widely, and each one is crucial. These formidable devices shine in perimeter protection, where they provide unwavering detection capabilities, irrespective of the conditions—be it darkness or attempts at camouflage. They also serve as an early warning system in critical facilities like electrical substations and data centers, helping to mitigate or even prevent potential fires and enhance overall safety measures.\nMoreover, their ability to detect heat signatures without revealing personal details aligns perfectly with the increasing demand for privacy-respecting surveillance.\nProtecting Assets Around the Clock\nThermal cameras are the vigilant guardians that never sleep, offering 24/7 surveillance over vast areas without the need for constant patrols. By providing efficient coverage, they reduce the necessity for a multitude of cameras, streamlining the process of asset protection. These cameras not only scan for and detect intruders but also activate alarms or deterrents, thereby maintaining the continuous safety of restricted zones.\nTheir long detection ranges are particularly beneficial for large perimeter security, minimizing costs and equipment needed for comprehensive monitoring.\nIntegrating Thermal Cameras into Modern Security Systems\nModern security systems are becoming increasingly sophisticated, and the integration of thermal cameras is a testament to this evolution. These cameras bolster security by providing reliable intruder detection that operates independently of lighting conditions. When combined with video analytics, thermal cameras pave the way for smarter security operations, capable of interpreting and reacting to potential threats with greater effectiveness.\nSuch integration proves especially beneficial in vast and demanding environments, evident in the safeguarding of isolated areas such as solar parks and wildlife preserves.\nCompatibility with Video Management Systems\nThe effortless fusion of thermal cameras with key video management systems (VMS) is spearheading a transformative shift in security procedures. This compatibility enables a more efficient assessment and response to incidents as thermal cameras work in concert with other security elements managed by the VMS.\nThermal Radar cameras, for instance, offer flexible integration capabilities, accommodating systems of any size and allowing for the incorporation of custom features within existing security frameworks.\nSmart Analytics for Proactive Surveillance\nSmart analytics amplify the proactive surveillance capabilities of thermal cameras, enabling them to:\nIdentify and differentiate between various types of threats, including early fire detection.\nSignificantly reduce the likelihood of false alarms.\nDistinguish between humans, vehicles, and harmless movements such as those of small animals or swaying foliage.\nThermal Radar cameras further enhance this capability by tracking threats and coordinating with PTZ auto-tracking cameras for continuous and meticulous monitoring.\nUnderstanding Thermal Camera Specifications\nThe functionality of thermal cameras is significantly determined by their technical parameters, with each contributing to the camera’s overall efficiency. Some important technical parameters to consider are:\nImage quality: This is determined by the camera’s resolution, which depends on the number of pixels on the sensor. Resolution options can range from 160x120 to 1024x768 pixels.\nPixel pitch: This refers to the distance between pixel centers. A smaller pixel pitch generally results in a higher resolution and better image quality.\nFill factor: This is the proportion of the pixel’s sensitive surface area. A higher fill factor can enhance the sensitivity and clarity of the thermal image.\nConsidering these technical parameters will help you choose a thermal camera that meets your specific needs and requirements.\nDeciphering Image Quality Factors\nImage quality in thermal cameras is a delicate balance between thermal sensitivity and spatial resolution. While thermal sensitivity relates to the ability to detect temperature differences, spatial resolution defines the sharpness and detail of an image. Unlike their visible light counterparts, thermal cameras typically have a lower resolution due to the challenge of detecting energy emitted at much larger wavelengths.\nDigital zoom can further affect image resolution, enlarging the image sensor data and potentially reducing image clarity.\nEvaluating Environmental Tolerance\nWeather conditions can have an impact on the performance of thermal cameras. However, they are able to maintain a consistent ability to deliver images across a range of environmental challenges such as:\nWhile clear winter skies can offer greater visibility due to lower humidity, more humid summer conditions can alter the camera’s performance.\nA comprehensive understanding of the observation range and efficiency of thermal cameras necessitates considering these environmental influences in conjunction with the camera’s specifications.\nTo summarize, thermal cameras are a formidable addition to any security arsenal, offering unparalleled capabilities to see beyond the visible, detect threats accurately, and operate under the most challenging light conditions. Whether integrated into sprawling security networks or standing alone, these devices offer a level of vigilance that is simply unmatched. As we continue to push the boundaries of what is possible, thermal cameras stand at the forefront, redefining surveillance and protection.\nFrequently Asked Questions\nWhat is a thermal camera used for?\nThermal cameras are primarily utilized in security and surveillance systems to detect unauthorized intruders, fires, and potential security breaches by capturing their heat signatures. This technology is particularly effective for perimeter defense, regardless of lighting conditions, and is indispensable for nighttime surveillance.\nWhat is the difference between a thermal camera and a normal camera?\nThe main difference between a thermal camera and a normal camera is that thermal cameras detect heat or infrared radiation, while normal cameras create images using visible light. Thermal cameras operate in the long-wavelength infrared spectrum, detecting heat emitted by objects.\nCan thermal cameras see through walls or glass?\nNo, thermal cameras cannot see through walls or glass. They only detect surface temperatures and cannot penetrate solid objects.\nHow far can thermal cameras see?\nThermal cameras can detect infrared radiation emitted by objects and have a range of a few feet to several miles, covering distances of 25 meters to beyond 11 kilometers, and in some cases even more than 40 kilometers.\nHow do thermal cameras see in the dark?\nThermal cameras are able to see in the dark by detecting infrared energy or heat emitted by objects, which allows them to create images based on temperature differences. This enables them to see in complete darkness.","domain":"optical_engineering"}
{"url":"https://www.khulsey.com/kodak.html","date":"2024-04-13T08:59:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816587.89/warc/CC-MAIN-20240413083102-20240413113102-00343.warc.gz","language_score":0.961904764175415,"token_count":151,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__7102211","lang":"en","text":"This Canon EOS digital SLR cutaway illustration was one of the first generations of full-sized single-lens-reflex cameras on the market, and was the result of a collaboration with Kodak and Canon. Kodak's CCD sensor in this camera was very modest by today's standards, with a image resolution of only 2 MB. The mechanical shutter, picture controls and magnesium alloy body were from the film version of the Canon EOS-1. Still, this was an astonishing achievement at the time, and the original retail price of the camera was over $15,000!\nAll Images Copyright © Kevin Hulsey, Kevin Hulsey Illustration, Inc. (KHulsey.com), all rights reserved.","domain":"optical_engineering"}
{"url":"https://nicegear.nz/product/delidar-tf02-tof-laser-rangefinder-22m","date":"2019-07-18T17:06:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525699.51/warc/CC-MAIN-20190718170249-20190718192249-00541.warc.gz","language_score":0.9058559536933899,"token_count":708,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__11521788","lang":"en","text":"DE-LIDAR TF02 (ToF) Laser Rangefinder (22m)\nDE-LIDAR TF02 (ToF) Laser Rangefinder (22m) is a newly developed product based on the widespread application experience of TF01. It is a unidirectional laser rangefinder, which based on ToF (Time of Flight) technology. It is comprised of particular optical and electrical devices that makes it stable, high sensitivity and high precision. ToF is the abbreviation for Time of Flight. This is a distance measurement method that measure the time that it takes for an object. The distance value between object and sensor is easy to get by calculating the time difference or phase difference between emission and reflection, so does the in-depth information.\nThe protection design of the TF 02 is based on the IP 65 level, which prevents it from the dust, water, and corrosion. It is anti-interferential from the strong light outdoors. It can work under 100K lux light without the interference from the temperature, humidity, light, electronics and airflow. High sensitivity, measuring distance up to 22 meters, accuracy in cm level. Scanning frequency up to 100Hz, real-time detection of distance with a 100 times/second refresh rate for more accurate data. TF02 has a complete system, containing a protective shell made of materials with a high transmittance of infrared, which doesn't affect the optical performance.\nNote: the distance in the table stands for the vertical distance between LiDAR and the detected object, with meter as unit. The side length unit of detection range is cm. Generally, the side length of detected object should be greater than that of detection range. Only in this way the LiDAR output data can be reliable. When the side length of detected object is less than that of detection range, the LiDAR output data is not stable and the error increases.\nNote: the side length of detecting range is not equal to the object resolution at the corresponding distance.\n- High sensitivity, and able to measure as far as 22 meters\n- High speed measurement with a maximum sampling frequency of 100Hz\n- Excellent anti-ambient light usability (operable under 100kLux ambient light)\n- Protection Grade reaches IP65\n- Anti-corrosive against pesticide\n- Small in size and light\n- Drone altitude holding and terrain following\n- Machine control and safety sensors\n- Distance measuring instrument\n- Detection Range: 0.3-10m\n- Accuracy: Centimeter-level (1% Relative error)\n- Measuring Speed: Default 100Hz (maximum: 500Hz)\n- Protection level: IP63-IP65\n- Light Resistance: Operate under ambient light of 100 kLux\n- Power: 5VDC, <200ma\n- Power: <1 W\n- Interface: UART/CAN\n- Weight: 50g\nComment on this product\nJust so you know; all our prices include GST, orders over $100.00 qualify for free shipping. Everything that is in stock (green tick icon) ships overnight on CourierPost. A lot of things that have the \"blue question mark\" stock icon are actually available now direct from our suppliers, please feel free to ask us if you aren't sure.\nAll our products are sourced through official channels, and come with a manufacturers warranty. Here's our returns policy if you'd like to read it before purchasing.","domain":"optical_engineering"}
{"url":"https://www.killerbrands.co.uk/products/flex-swirl-finder-pocket-light-463-302","date":"2023-11-28T14:18:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099514.72/warc/CC-MAIN-20231128115347-20231128145347-00292.warc.gz","language_score":0.8732445240020752,"token_count":109,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__243908642","lang":"en","text":"Flex LED light for easy control of surface conditions. Due to the colour temperature and reproduction, surface damage such as holograms, scratches etc. become better visible. Light intensity 140 lumens and adjustable focus with a beam angle of 10° -70°, lighting time approx. 2 hours incl. batteries.\nSize: 190 x 58 x 43mm.\nPart No. SF 150-P\nPayment & Security\nYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.","domain":"optical_engineering"}
{"url":"https://bioscint.com/product/zoetis-vetscan-hd-microscope/","date":"2021-05-15T11:21:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991801.49/warc/CC-MAIN-20210515100825-20210515130825-00579.warc.gz","language_score":0.8268306255340576,"token_count":148,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__198620708","lang":"en","text":"Zoetis – Vetscan – HD Microscope\nThe external HDMI port allows you to connect directly to a HD monitor for live/real time viewing. You can also capture and save images to an SD card, all without being connected to a computer.\nWith parfocal lenses, auto-gain, and exposure, a change in magnification delivers a perfect picture every time.\nUncompressed full 1080p 60fps video for seamless live viewing, recording, or streaming without any lag time.\nControl the camera with a click of a mouse rather than searching for buttons on the camera.\nThe trinocular eye tube accommodates the HD imaging system to create a complete full-screen or split-screen digital experience.","domain":"optical_engineering"}
{"url":"http://zwye.recept-club.ru/722052","date":"2021-10-17T18:39:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585181.6/warc/CC-MAIN-20211017175237-20211017205237-00330.warc.gz","language_score":0.8553522229194641,"token_count":2683,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__248148253","lang":"en","text":"· The Leica M10 Monochrom in Oslo. Day does a great job walking you through the pros and cons of having a camera that. Your Leica Camera AG. Leica M&39;s have a build quality unlike ANYTHING else out there. 68x Optical Viewfinder Magnification, 3. Video The Q2 can Monochrom can shoot 4K (3840 x2160) video at 24/30fps or C4K 4096x 2160 at 24p, and naturally, all the footage is black and white. 7 in) macro mode and a claim of better dynamic range and noise performance. The Leica M10 Monochrom’s price is £7,250 (body only) and it’s available for pre-order immediately.\nLeica M10 Monochrom. Based on the Leica M10-P platform, the M10 Monochrom brings a new level of resolution and performance to the M-System as well as black and white photography as a whole. Is leica camera sharper? Shortly after the M Monochrom (Typ 246) was introduced back in early, I published an article comparing it to an M (Typ 240) with its color files converted to black and white to see if high ISO performance was really superior with a dedicated monochrome sensor, along with the previous M Monochrom (M9M) to gauge any generational improvement. Leica Maestro II image processor. Date: Format: PDF (60. It might look closest in design and audience to the Leica M range, and the Summilux lens bears the same name as some legendary M lenses, but this is a compact camera with an electronic viewfinder and a fixed lens, and is about as far from the M rangefinder design as you can get.\nShutter speeds range from 16 minutes to 1/4000-second in aperture-priority mode and 8 to 1/4000-second in manual. The Leica M10 Monochrom is remarkable for three reasons. 11 kB) Download. · Free Download Leica M Monochrom PDF User Manual, Instructions, User Guide, Owner&39;s Manual. LEICA&39;s highest-resolution digital LEICA M ever. If you don&39;t, there&39;s a good market for \"brassed\" M&39;s. · Leica’s M Monochrom Typ 246 is revered as one of leica m monochrom manual the industry’s finest black & white cameras.\nThe first is its use of a decades-old manual focus rangefinder design. Distinct from most digital camera, the M Monochrom (Typ 246) is a high-resolution camera dedicated solely to recording black and white imagery. The nickname for the camera through design and development at Leica Camera AG was \"Henri\" as a tribute to Henri Cartier-Bresson but at introduction, Leica Camera AG decided on the name Leica M Monochrom. A large part of this can be attributed to the brand’s long-running reputation within the history of reportage, tapping into its roots to create a modernized platform that pays homage to the variants of old. · Free Download Leica M10 Monochrom PDF User Manual, User Guide, Instructions, Leica M10 Monochrom Owner&39;s Manual. Boutique/Niche products always cost more.\n3 oz) compared to the M10 Monochrom’s 660g (23. three tonings, each of which has two intensity levels. The Leica Q2 Monochrom isn&39;t &39;affordable&39; by most people&39;s standards, but it is one of the less · The Leica M10 Monochrom is a black-and-white-only version of the Leica M10-. Auto exposures to 16 minutes! LEICA M Typ 262 - M in its purest form Leica M Monochrom Typ 246.\nLeica M Monochrom rangefinder digital camera is a black-and-white version of Leica M9. The Leica M10 Monochrom: On the Streets The M10 Monochrom offers a choice of manual or aperture-priority exposure control and contains 2GB of memory buffer for capturing up to 10 frames at 4. The camera is based on the same Kodak CCD sensor as the Leica leica m monochrom manual M9 but without the color filter array. 7 ASPH lens with 17cm (6. The third is a price tag higher than any other M-series camera except for Leica&39;s prestige special editions. However, the M10 Monochrom arguably better fits that description. The impression of sharpness can thus computer).\n· 1. Your Leica Camera AG SCOPE OF DELIVERY. Installation Instructions Firmware (1. Page 121: Holding The Camera Correctly • The Leica M Monochrom is equipped with an integral it.\n· In this video, Matt Day reviews the Leica Q2 Monochrom, Leica&39;s newest black and white only digital camera. 40MP Leica full-frame monochrome CMOS sensor. · In another nice touch that will be unfamiliar to Leica M users, the Q2 Monochrom has optical image stabilisation is built-in and it works for both stills and video. 0) Leica M Monochrom (Typ 246) Firmware Chinese.\nThe Leica M Monochrom is a dedicated 35mm black-and-white digital camera and predecessor to the Typ 246. You risk little if you keep them in good condition. The Leica M10 Monochrom is a black-and-white digital rangefinder still camera with enhanced imaging capabilities and a nearly silent shutter. You can find all information about the Leica M10 Monochrom whenever you need it at m-monochrom. · The Leica Q2 Monochrom is Leica’s latest dedicated black-and-white camera, joining the M Monochrom and the M10 Monochrom manual-focus rangefinders. Leica M10 Monochrom is a dedicated black and white rangefinder digital camera, which equipped with a 40MP full-frame black-and-white CMOS sensor delivers ultra-high resolution, impeccable sharpness B&W images in all lighting conditions. High per-pixel sharpness.\nThe Leica M10 Monochrom is an update to the Leica M Monochrom – Typ 246 and is a specialized digital rangefinder camera that uses a unique full-frame monochrome CMOS sensor to produce vivid, rich black-and-white images. · The Leica Q2 Monochrom (and the regular Q2) do not form part of Leica’s regular camera ranges. You can order the Leica M10 Monochrom from Park Cameras in the UK and B&H Photo-Video in the USA As a Leica M camera, the M10 Monochrom (Type 6376) is a rangefinder camera. Please read this manual thoroughly to familiarize yourself with the full scope of functions your camera has to offer. It was released on 17 January. This is the manual that will give you the information related to the specification, features, operation, instruction, camera manual, and others. The Q2 Monochrom is bigger and heavier, weighing 734g (25. Key features include: Touchscreen controls and nearly silent shutter.\nThis manual comes under the category Digital cameras and has been rated by 1 people with an average of a 5. That means it’s rangefinder camera, with manual focusing, and its full-frame sensor lacks the usual colour filter array so it can only record brightness and produces monochrome images. The Q2 Monochrom has a 47MP sensor that only produces black and white images, a fixed 28mm F1. with your new Leica M10 Monochrom. Date: Format: PDF (60. See more results.\nManuals have been included since 1990 it is only the last few years we have seen a discontinuance of manuals with many cameras. 40MP Monochrome CMOS Sensor and Maestro II Processor. It’s an update to the Leica M Monochrom – Typ 246. But if it&39;s for you, you&39;ll love it. The Leica M10 Monochrom is a digital rangefinder camera manufactured by Leica Camera. 6k-Dot LCD with Sapphire Glass, Full HD 1080p Video at 24/25 fps, ISO, 3 fps with 2GB Buffer, Magnesium-Alloy Body Construction.\nWhat is price of Leica M10 monochrom? Leica Camera is excited to announce the long-awaited third generation of its innovative black and white digital rangefinder cameras, the Leica M10 Monochrom. Leica M10 Monochrom Discover More in Black and White Leica M-E The Entry Level Leica M. The match-up was certainly illuminating, clearly. Leica Leica Q2 Monochrom.\nI’ve always loved photography, and I still have fond memories of, as a teenager, using my father’s old Olympus OM1. I agree Leica&39;s are not as complicated as other cameras but some of us prefer having a printed manual available to reference and if we on occasion chose to take it with us when shooting that is our choice. The new M10 version sees a host of upgrades that make the camera a much more enticing. This makes the sensor one stop leica m monochrom manual faster and the base ISO of the sensor is 320 ISO instead of the 160 ISO of the Leica M9. View the manual for the Leica M Monochrom here, for free. Leica M Monochrom rangefinder camera is the first full-frame format camera to be designed exclusively and without any leica m monochrom manual compromises for black-and-white photography. The manual focus, black and white-only Leica M Monochrom (Typ 246) rangefinder camera isn&39;t for everyone. · Leica M Monochrom Camera User Manual, Instruction Manual, User Guide (PDF) Free Download Leica M Monochrom PDF User Manual, User Guide, Instructions, Leica M Monochrom Owner&39;s Manual.\n· Manual focus isn&39;t for everyone If Leica rangefinders are throwbacks to a bygone era, there&39;s no better example of just how far back they can go than the M10 Monochrom (,295, body only). I’m going to begin this – my first camera review (thanks to Steve for publishing this) – with some context. Buy Leica M Monochrom (Typ 246) Digital Rangefinder Camera featuring 24MP Full-Frame B&W CMOS Sensor, No Color Array or Low Pass Filter, Leica Maestro Image Processor, Rangefinder with Image Field Selector, 0. The Leica M Monochrom Manual User Guide.\nWhat is leica camera nickname? The second is that it shoots only in black and white. Leica M&39;s hold their value, almost all other cameras drop considerably. By James at bat-photo. Wi-Fi to talk to LEICA&39;s apps.\nThe M10 Monochrom uses a full frame 40 Megapixels CMOS sensor that allows no color filter arrays to enter the sensor. Leica announced the Q2 Monochrom as the first full frame compact camera ever to be made with a dedicated monochrome sensor. Leica claim that the camera delivers 100% sharper images than monochrome images derived from a camera with a color sensor (of comparable megapixels). It is the first full-frame format digital camera to be designed exclusively and without any compromises for black-and-white photography. We wish you a great deal of fun and success taking photographs with your new Leica M10 Monochrom. Key features include: Captures true RAW black-and-white images. LEICA&39;s first Monochrom version of the LEICA M10-P.\nAs we stated at the beginning of this article, the aim of providing this writing is to bring the Leica M Monochrom Manual. · The Leica M10 Monochrom is the successor to the Leica M Monochrom (Typ 246) that was launched back in. This manual is available in the following languages: English, German. 18MP monochrome CCD sensor. A black and white only successor to the Leica M Monochrom and the Leica M Monochrom (Typ 246).\nDedicated ISO dial. Bright-line frame viewfinder. Leica Q2 Monochrom Digital. What is M Monochrom? On the Leica M Monochrom, you can choose between be changed by expanding or reducing these areas. I&39;d get my M10 Monochrom at Adorama or at B&H, or eventually used at eBay if you know How to Win at eBay.\n-> 2004 hyundai sonata gls manual\n-> Citizen men's watch blue angels at8020 54l manual","domain":"optical_engineering"}
{"url":"https://chamberscreations.wordpress.com/photography-tips/how-hot-are-your-shots/","date":"2018-04-21T09:54:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945111.79/warc/CC-MAIN-20180421090739-20180421110739-00277.warc.gz","language_score":0.9363917708396912,"token_count":949,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__235902077","lang":"en","text":"Light comes from many different sources, many different directions and in many different colors. The light from the sun is a very different color from a candle. Daylight on a cloudy day is a very different color from day light on a sunny day. A regular lightbulb is very different in color from a fluorescent bulb. The light on your camera’s flash is different from all the rest. Halogen’s, metal halide, mercury vapor, daylight fluorescent, bright white and whatever other kind of bulbs you can think of all have different colors. Since your camera is recording the light, it needs to make some decisions about the color of light hitting the sensor. If those decisions are wrong, the color of the entire picture will be off. Sometimes it is way off and immediately noticeable. Sometimes it is only slightly off, leaving the picture looking just a little less than right.\nYour camera has several different presets that you can choose from. Each setting will adjust the camera with the goal of making white appear white. Our brain automatically adjusts according to the color of the light, so we don’t often notice the sometime subtle differences of shading under different light sources. However, the camera is not near as sophisticated as our brain. It will sometimes compensate correctly, but every adjustment is a best guess by the computer inside your camera. Many cameras offer a range of white balance selections, some of the more common ones are listed below with an approximation of the color cast emitted with each light source.\nTungsten is the traditional light bulb found in lamps and ceilings. Unless your camera specifies different types of tungsten, this does not usually cover for bright white or day light bulbs. The traditional tungsten light gives off a bit of an orange hue. If the adjustment for this kind of light is not made, the entire picture can take on a slight orange tinge to it.\nFluorescents are rapidly becoming the most common lights found anywhere. From the strip light bulbs in office ceilings to the curly bulbs used in traditional fixtures, fluorescents are becoming king in artificial lighting. The problem is, unless you have daylight fluorescents installed, the light they emit has a greenish tint. This green tint gives many cameras fits. That makes setting your white balance for fluorescent very important.\nDaylight and flash are by design almost identical in their coloring. The greatest difference is the color temperature of daylight will fluctuate while your flash is preset for one specific temperature that does not really change. Utilizing the flash white balance adjustment becomes especially important indoors. Probably every one has taken a picture of a friend and been disappointed to see their friend had suddenly turned pasty white. Part of that is due to your camera incorrectly compensating for the room lights and not the flash. (The other part is your flash is too powerful, back up a little bit.) Turn your white balance to flash and you should get a more natural looking friend.\nCloudy and shade are also very similar, and many cameras do not offer both chooses. Often shade is a bit darker blue than cloudy skies, but both clouds and shade cover a range of color temperatures. The deeper blues mean your camera tends to add in more orange and yellow in the image to bring white to where it should be. That color adjustment means the cloudy or shade setting can be especially helpful in bringing out the deep fiery colors of the sky and clouds when taking a sunset picture.\nOne of the most useful white balance setting on your camera is the custom white balance. With the custom setting you tell your camera what is white in the lighting you are shooting under. For most point and shoots, this is done by selecting the set custom white balance and then imaging something that is pure white (a piece of printer paper works great). Once you set the custom white balance, your camera will keep that particular setting in your custom setting until you set a new white balance. This is especially helpful in tricky lighting situations or when your camera just can’t seem to get it right using the other presets. Just remember, when you move to a different location your light will change so you will have to set a new custom white balance for the new location.\nThese are the most common options for setting the white balance. Many cameras offer more than one tungsten, fluorescent and custom setting. If your camera gives you multiple or other options, pull out your handy user manual to find out exactly what each one means. Taking the time to get comfortable with the white balance settings on your camera are well worth your effort. Nailing white will make your pictures stand out, so get comfortable adjusting those settings. If white is right your pictures will pop.","domain":"optical_engineering"}
{"url":"https://www.avdci.com/blog?start=28","date":"2023-03-24T13:42:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945282.33/warc/CC-MAIN-20230324113500-20230324143500-00272.warc.gz","language_score":0.9436059594154358,"token_count":284,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__47952886","lang":"en","text":"The beauty of projectors is that they can be used on any surface instead of just ones. Many projector owners prefer to project onto custom-made screens or white-painted walls to assure quality, but this isn't required. You can re-adjust your home theater projector infinitely because it doesn't require a set frame size.\nDo you need a massive image for a blockbuster film? Or perhaps a little one to fit into a small space? One projector can accomplish both, and its image may be projected onto any flat surface!\nReduce Eye Strain\nWhen it comes to eye comfort, projectors have two distinct advantages. Because projector users can project larger images, eyestrain is less of an issue. When looking at small graphics and images on a TV, viewers are forced to go closer to their screens and struggle to focus.\nAdditionally, the type of light emitted by projectors reduces eye strain. The use of reflected light in projectors has a lower visual impact on the eye, unlike the emitted light of TVs. So you can comfortably binge-watch to your heart’s content.\nWhile a large-screen TV's size may dazzle some, it also restricts the device's mobility and utility. A projector the size of a laptop, on the other hand, can display a large image on a variety of surfaces but also has versatile placement.","domain":"optical_engineering"}
{"url":"http://vectorsinc.com/trible-vx-spatial-station/","date":"2018-06-25T13:19:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267867885.75/warc/CC-MAIN-20180625131117-20180625151117-00111.warc.gz","language_score":0.9135426878929138,"token_count":480,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__195711322","lang":"en","text":"Capture and combine scanning, imaging and surveying deliverables with the singular solution designed for surveyors.\nIntegrating the technologies of advanced optical surveying, metric imaging and 3D scanning, the Trimble® VX Spatial Station is the only surveying instrument that does it all and does it with ease.\nExpectations from surveying customers are evolving. To improve the efficiency of capturing advanced Spatial Imaging deliverables, Trimble provides an integrated solution for bringing these technologies together within the traditional workflows surveyors already use. So you have the flexibility to perform feature-rich scans every day, without the complexity of setting up a separate scanning system or switching to specialized field software.\nWith the Trimble VX Spatial Station, you can efficiently capture the information you need to create digital terrain models (DTMs), volume calculations, and perform topographic measurements faster than with traditional surveying methods.\nAdvanced 3D models and image-rendered 3D surfaces are within your reach with the rich data delivered by Trimble Spatial Imaging sensors. With the ability to capture metric images with the Trimble VX in the field, you are also able to make additional measurements and attribute the data back in the office. It’s all accessible to surveyors with the Trimble VX and Trimble RealWorks® software. Your clients will immediately see the detail of your work via3D walkthroughs of the job site using your survey data, images, and scanned information all from the Trimble VX.\nTrimble VISION gives you the power to see everything the instrument sees. Direct your work with live video images on the controller. Now you are free to capture measurements to prism or reflectorless surface with a point and click.\nTake your productivity even further by adopting Trimble Integrated Surveying workflows – simply add your GNSS receiver to your robotic rod and powerful Trimble field software will seamlessly take care of the rest. This allows you to collect GNSS and optical data while simultaneously scanning a surface or site. With the built-in imaging and 3D scanning capabilities, you can capture the shape of objects of interest, such as a nearby building or power lines while you perform your traditional survey work.\nWith the long range capabilities of the Trimble DR Plus EDM, you measure further with fewer instrument set-ups and enhance your scanning performance.","domain":"optical_engineering"}
{"url":"http://www.npntransistor.org/","date":"2015-07-29T19:59:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-32/segments/1438042986625.58/warc/CC-MAIN-20150728002306-00008-ip-10-236-191-2.ec2.internal.warc.gz","language_score":0.953805685043335,"token_count":502,"dump":"CC-MAIN-2015-32","global_id":"webtext-fineweb__CC-MAIN-2015-32__0__115736365","lang":"en","text":"Given that the late 1800s, scientists have imagined achieving cordless power transmission– the delivery of power to a distant area without cables. Laser power beaming utilizes a laser to send out concentrated light with the air or fiber optic cable television to a distant receiver that converts the light to electrical power. It functions just like solar energy, where sunshine shines on solar cells that create electrical energy, but rather it uses high strength laser light aimed at specialized photovoltaic (PV) cells that transform the laser light into electrical energy. Secret differences from solar power are that the laser is a lot more extreme compared to the sunlight, it can be intended anywhere in line-of-sight of the transmitter (including with the aid of a telescope or mirrors), and it can run 24 hours/day. Subsequently, laser power beaming has various benefits over solar energy.\nThe cordless power system starts with a laser operating on power supplied from a basic industrial electrical outlet or a generator. The laser light is shaped by a set of optics to define the beam dimension at its location. This light after that propagates through air, the vacuum of space, or through fiber optic cable until it gets to the PV receiver. This range of PV cells then converts the light back right into power.\nPower is generally transmitted utilizing wires (often made from copper). Amongst their less preferable qualities are that electrical high-voltage line are expensive to set up ($20,000 or more each mile for low power domestic lines, and $250,000 or more each mile for high-voltage transmission lines), can need substantial time prior to an installment is completed, could fail at any factor along their whole length, and also cannot be transferred to a various area when set up. Maybe most notably, however, there are lots of locations where electric high-voltage line are unwise (e.g., to an aerial ride), expensive (e.g., to distant, distant locations), or simply difficult to mount (Earth to Moon).\nWireless power distribution, on the other hand, needs bodily setups at just the transmitting and also receiving points, and also absolutely nothing between (an “invisible expansion cords”). The receiver could be relocated to a various place, closer or even more away, without altering the cost of the system. Power can be offered as soon as the aspects are put as well as switched on, as opposed to needing to await cables to be buried or hung from poles.","domain":"optical_engineering"}
{"url":"https://www.westan.com.au/epson-eh-tw6700.html","date":"2020-02-29T08:51:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875148850.96/warc/CC-MAIN-20200229083813-20200229113813-00148.warc.gz","language_score":0.7866982221603394,"token_count":1809,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__5796085","lang":"en","text":"Be prepared to be impressed; the EH-TW6700 delivers on all fronts with a range of high-end features to generate bright, colourful and high contrast Full HD images, all at an affordable price.\nUsing Epson's 3LCD technology, this Full HD projector features high White and Colour Light Output of 3,000 lumens and 70,000:1 dynamic contrast ratio. This technology ensures bright, vivid colours and deep blacks. Frame interpolation and Detail Enhancement provide sharper and smoother motion pictures and great detail, for greater clarity, and the EH-TW6700 can also convert standard 2D video into 3D.\n|Brilliant image quality requires high colour brightness (colour light output), and Epson® 3LCD projectors have 3x Brighter Colours than leading competitive projectors*.\nOne brightness measurement (lumens) is not enough. A projector‘s specification needs to show both high colour brightness and high white brightness. If colour brightness is lower than white brightness, images may be dark, dull and lose detail. Be sure to ask for a projector’s colour brightness specification.\n* Compared to leading 1-chip DLP business and education projectors based on NPD data, July 2011 through June 2012. Colour brightness (colour light output) measured in accordance with IDMS 15.4. Colour brightness will vary depending on usage conditions.\n|All Epson projectors are based on 3-chip LCD technology for amazing colour, incredible detail and solid reliability. 3LCD 3-chip architecture dedicates an entire chip to process each primary colour – red, green and blue, continuously. Unlike single-chip technology that delivers colour sequentially, you get full-time colour. The result is vibrant, realistic images and video all delivered with 3LCD’s true-to-life colour.|\nC2Fine offers smooth, uniform images with exceptional contrast for better image quality. Based on this new phase-compensation technology, light leakage is eliminated. When combined with the auto iris, this technology allows for contrast ratios of up to 70,000:1.\nFor the best quality images, look for projectors where the colour brightness and white brightness are equal. If colour brightness is lower than white brightness, photos, videos and graphics can look dull and washed out. The Epson EH-TW6700 delivers 3,000 Lumens of colour brightness and 3,000 Lumens of white brightness (light output) for rich, colourful images.\n|Enjoy thrilling 3D adventures right in the comfort of your living room. Featuring Bright 3D Drive technology, the TW6700 puts you right in the middle of the action. Epson’s drive system minimises the blackout time of 3D glasses and provides greater brightness when viewing 3D content.|\nTransform any 2D movie, from the latest science-fiction adventure to your favourite classic, into spectacular 3D or watch the big game in exciting 3D. The TW6700 makes it easier than ever with convenient 2D-to-3D conversion. With just the touch of a button, you can watch your favourite shows and movies in eye-popping 3D. With no special discs required, the possibilities are endless.\n|Enjoy 3D adventures from any seat in the house. Line of sight is not required with the included RF 3D glasses. Rechargeable for up to 40 hours of battery life, these innovative glasses have a 3-minute quick-charge feature for up to 3 hours of battery life.|\n|Connect to your Bluetooth speakers for complete flexibility and portability without the messy wires.|\n1aptX speakers are recommended for Bluetooth connectivity.\nWith a Full HD 1920x1080 panel, you can fully enjoy your favourite high definition entertainment on the big screen.\nMakes DVDs and standard definition content come alive via its mixed colour separation techniques and imaging simulation. It delivers crisp, clear images with super high-quality resolution. It also sharpens blurry images that have been enlarged by a general upscaling process.\nDisplay and control content from your smart devices with the Epson iProjection App. This free application allows you to easily share pictures from your mobile devices. The app is easy to use and navigate with intuitive menu options that make it simple to bring your content to the big screen.\nYou can now also use your smart device as a remote while QR codes allow you to quickly and easily connect and share your content through iProjection.\nEnjoy bright, vibrant pictures and excellent shadow detail, so you can view the true brilliance of full HD images.\nConnect from virtually any device, making your entertainment simple and more accessible.\nLens shift allows you a wide range of placement possibilities, with a broad shift range of 60% vertically and 24% horizontally. Combined with a 1.6x zoom lens, projector placement is a breeze.\nEnjoy amazing audio with two built-in 10W speakers.\n|PRODUCT NAME||Epson EH-TW6700|\n|WHAT'S IN THE BOX|\n|EH-TW6700 Projector, Power Cable, Remote Control + Batteries, 3D Glasses + USB cable for charging, User Manual|\n|Projection System||RGB liquid crystal shutter projection system|\n|LCD Panel||0.61-inch wide panel (D10, C2Fine, 10Bit)|\n|Screen Size||30\" to 300\" [0.87 to 8.9m] (Zoom: Wide)\n30\" to 300\" [1.42 to 14.5m] (Zoom: Tele)\n|Projection Distance||100\" screen 2.95 - 4.8 m|\n|Throw Ratio||1.32 (Zoom: Wide), 2.15 (Zoom: Tele)|\n|Projection Lens F Number||1.51-1.99|\n|Projection Lens Focal Length||18.2mm-29.2mm|\n|Colour Light Output||3,000 Lumens|\n|White Light Output||3,000 Lumens|\n|Native Aspect Ratio||16:9|\n|Lamp Type||250 W UHE|\n|Colour Reproduction||Up to 1.07 billion colours|\n|Colour Processing||10 bit|\n|Keystone Correction||Vertical : -30 to +30 degrees\nHorizontal: -30 to +30 degrees\n|Lens Shift||Vertical: -60% to +60%\nHorizontal: -24% to +24%\n|Input: Digital||2 x HDMI (1 x MHL)|\n|Input: Computer||1 x D-sub 15-pin (RGB)|\n|Input: USB||1 x USB A (Photo Viewer)|\n|Output: Audio||1 x 3.5mm (Stereo), Bluetooth (aptX)|\n|3D Formats||Top-and-Bottom, Side-by-Side, Frame Packaging|\n|2D to 3D Conversion||Off / Weak / Medium / Strong|\n|Internal Speakers||2 x 10W|\n|Direct Power On||Yes|\n|Security||Kensington®-style lock provision|\n|Colour Modes||2D: Dynamic, Living room, Natural, Cinema, Auto\n3D: 3D Dynamic, 3D Cinema\n|Dimensions D x W x H (Maximum Including Feet)||310 × 410 × 163 mm|\n|Lamp Warranty||1 Year or 750 hours*|\n|Projector Warranty||2 Years|\n|Power Consumption: Lamp on||364W|\n|Power Consumption: Standby||0.40W|\n|Noise Level||Normal/Eco: 35/24 dB|\n|* Which ever comes first. For more information visit Epson Projector Warranty|\n|PRODUCT OPTIONS||Item Code||Description|\n|V13H010L85||ELPLP85 Projector Lamp|\n|V13H134A39||ELPAF39 Air Filter|\n|V12H003B22||ELPMB22 Ceiling Mount|\n|V12H526040||ELPMB30 Flush Ceiling mount|\n|V12H003P13||ELPFP13 Extension Pole – 450mm|\n|V12H003P14||ELPFP14 Extension Pole – 918mm to 1,168mm|\n|V12H548001||ELPGS03 3D Glasses|\n|V12H564C12||ELPAC01 Charger for 3D Glasses|\n|V12H002S2Y||ELPSC21B 80\" Portable tripod screen|","domain":"optical_engineering"}
{"url":"https://www.wastemanagementpressreleases.com/2021/06/17/marine-plastic-quantified-using-artificial-intelligence/","date":"2021-07-30T17:22:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046153971.20/warc/CC-MAIN-20210730154005-20210730184005-00098.warc.gz","language_score":0.9174493551254272,"token_count":702,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__267779724","lang":"en","text":"SAN FRANCISCO, CALIFORNIA, UNITED STATES, June 17, 2021 /EINPresswire.com/ — Researchers at the California State University Monterey Bay, The Ocean Cleanup, and the University of California San Diego have developed an open-source application named “DeepPlastic” that utilizes deep learning techniques to detect and quantify subsurface marine plastic via underwater cameras.\nOceans all around the world face a pertinent issue. The increasing amount of subsurface plastic debris poses a severe threat to marine life and the environment–as plastics cause damage to marine life via ingestion, suffocation, or restraint.\nQuantifying and tracking marine plastic plays a critical role in restoring the oceans. Large-scale clean-up operations do not have sufficient logistical data to remove marine plastic from an operational perspective. For plastic to be removed efficiently, we need to know where it is located.\nCurrent plastic monitoring methods require manual, labor-intensive collection via human manning surface devices such as Manta Trawls. Since sampling requires physical removal before quantification can occur–it prevents scalable solutions capable of monitoring plastic across vast waterways.\n“DeepPlastic” solves this problem by circumventing the need for extracted physical samples and automating the process of detecting subsurface plastic via computer vision. Now, autonomous underwater vehicles (AUV’s) equipped with underwater cameras can quantify marine plastic debris throughout the water column.\nIn the words of Gautam Tata, the team’s principal investigator, “Underwater imaging combined with analytical deep learning algorithms presents a more reliable, faster, and efficient way to monitor marine plastic automatically.”\nThe “Deep” in “DeepPlastic” stems from the primary technology powering it–deep convolutional neural networks–which imitate the way the human eye processes visual information. This technology recently emerged from a branch of computer science that combines artificial intelligence with computer vision known as deep learning.\nThe researchers went to the field to hand-collect and annotated more than 4000 images of marine plastic to train the model. The algorithm was then tested and validated on images “DeepPlastic” had never seen before.\nThe results were significant–85% mean average precision, which means that the model accurately detects subsurface plastic around 85% of the time.\nTHE WAY AHEAD\nWhile the team works to get their paper published into a journal, they concurrently develop methods to synthesize images without needing to go into the field. They’ve also begun working with other researchers at the Monterey Bay Aquarium Research Institute to test the expansiveness of “DeepPlastic.”\nJay Lowe, a research engineer working on “DeepPlastic,” explains that, “In terms of visual detection, the ocean presents extreme factors not found in many environments such as occlusion, turbidity, and noise. This makes developing automatic methods to detect marine plastic particularly challenging. For this reason, only a handful of studies focus on automated detection applications such as ‘DeepPlastic.’ Our team feels confident that with future work, ‘DeepPlastic’ can be deployed worldwide in a variety of real-world scenarios”.\nWatch their model in action: https://www.youtube.com/watch?v=QK2YZL3TCZ0\nSource: EIN Presswire","domain":"optical_engineering"}
{"url":"http://cretique.com/how-to-choose-the-best-led-lighting-for-your-needs/","date":"2018-01-16T17:00:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084886476.31/warc/CC-MAIN-20180116164812-20180116184812-00288.warc.gz","language_score":0.9483928680419922,"token_count":711,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__240286059","lang":"en","text":"How to Choose the Best LED Lighting for Your Needs\nNowadays, you may have noticed that there are many different types and models of LED lights to choose from. You can now buy LED lights almost anywhere (although the best place to find them is still in electrical supply firms), and you only need to choose the most ideal LED lighting based on what it is that you need and require.\nImage Source : ReconElectrical.Co.Uk\nBut whether you are on the lookout for a simple LED light bulb or an LED tube light or floodlight, there are still some essential factors to think about. Here’s a rundown on what you should consider when it comes to LED lights:\nOf course, the very first aspect to consider when you are purchasing LED lighting is its level of brightness. But for those who are unaware of the levels of brightness of LED lights, this can become quite confusing – after all, the brightness of a typical LED bulb will be different from a typical incandescent bulb.\nYou can, however, make use of the wattage stated on the LED package simply to compare the illumination of the bulb. For instance, if you see a 9-watt LED light, its output is equal to a 45-watt incandescent light. This is the simplest way to compare. But if you want to be doubly sure, you can look at the LED’s lumen value. Lumens are the measurement units used to indicate a light’s brightness and what you need to remember is that the higher the lumen value, the brighter the light is.\nThe difference between ‘cool’ and ‘warm’\nAnother aspect you need to consider when selecting LED lights is their warmth or coolness. Today, there are many LED lights which are categorised as having ‘cool’ light, which is white. The ‘warm’ LED lights often have a yellow-coloured light.\nTo differentiate and know which one is better for your requirements: cool light is better if you are looking for lighting that can make various specific tasks easier (such as cooking, working on the computer, or working on machinery), while warm light is more ideal for lighting up a small space or area or accentuating a particular space or object (accent lighting).\nThe difference between a dimmable and a standard LED light\nNow, you also have a choice between standard LED lights or LED lights which have the capacity to be dimmed. These dimmable lights are ideal for reception areas, conference rooms and meeting rooms, or a living area or bedroom. Note that these dimmable LED lights should be able to operate on a standard switch for dimming.\nPin-base LED lights or standard or ordinary base LED lights\nYet another factor to consider when you are choosing your LED lighting is whether you should opt for pin-base LEDs or ordinary (standard) base LEDs. LED lighting today is available in different varieties of pin bases or sockets or the standard screw-on base (also known as the Edison base), which is also more ideal for track or recessed lighting.\nWhen it comes to your LED lighting needs and your other requirements in regards to electrical supplies, you can always turn to electrical wholesalers like Recon Electrical, which not only features the most competitive pricing – it also makes searching for whatever you need easier and more convenient as well.\nImage attributed to pixtawan/FreeDigitalPhotos.net\nArticle Submitted By Community Writer","domain":"optical_engineering"}
{"url":"https://labs.ece.uw.edu/amlab/MS_Alvarez_Lens.html","date":"2024-02-26T19:46:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474663.47/warc/CC-MAIN-20240226194006-20240226224006-00832.warc.gz","language_score":0.9036914110183716,"token_count":568,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__153646818","lang":"en","text":"Flat Metasurface Alvarez Lens for Eyewear\nMetasurface freeform optics: The function of an optical element is intrinsically tied to its geometry. While manufacturability has often constrained optical elements to have rotational invariance, the emerging field of freeform optics leverages more complex curvatures, often involving higher order polynomials of the spatial dimension, to enable novel functionalities and simplified compound optical systems. These elements have been shown to be capable of correcting aberrations, off-axis imaging, expanding field of view, and increasing depth of field. Recent interest in freeform optics has been driven by potential applications in near-eye displays as well as compact optical systems for medical, aerospace, and mobile devices where there are stringent constraints on the size and weight of the optical package. One surface of particular interest is the cubic profile, where the surface of the optical element is defined by a cubic function. These elements have been shown to exhibit increased depth of focus, and in tandem, they can form an aberration-correcting lens with adjustable focus called the Alvarez lens. Unlike conventional optics, metasurface optical design is curvature agnostic, readily accepting both conventional spherical curvatures as well as complex freeform surfaces with no additional design difficulties, while maintaining a thickness on the order of the optical wavelength. Moreover, well-developed semiconductor nanofabrication technology can be readily employed to fabricate such structures.\nMetasurfaces are two-dimensional arrays of sub-wavelength scale scatterers arranged to arbitrarily control the wavefront of incident electromagnetic waves. Rather than relying upon gradual phase accumulation, metasurfaces impart an abrupt, spatially varying phase profile on the incident light. This allows us to map complex curvatures onto a flat, wavelength scale thick surface by converting them into a discretized spatial phase profile. In addition to their compact size and weight, metasurfaces are fabricated using a single step lithography procedure with mature, highly scalable nanofabrication technology developed by the semiconductor industry.\nFigure: Different metasurface optical elements fabricated in our lab: (a) Lens; (b) Vortex beam generator and (c) cubic and Alvarez metasurfaces\nAlvarez Lens: Two cleverly designed cubic lenses, placed in front of each other\nFigure: Operation of Alvarez lenses. Two cubic surfaces, when displaced laterally provide the phase profile of that of a lens, whose focal lengths change depending on the displacement.\nImage creation for objects placed at different distance: Depending on eye conditions, different focal length lenses (or optical power, which is inverse of the focal length) will be necessary, as shown here.\nFigure: Depending on the object distances, different focal lengths are required to create the image.","domain":"optical_engineering"}
{"url":"https://chee.engineering.arizona.edu/news-events/chee-seminar-judith-su","date":"2024-04-25T07:27:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297290384.96/warc/CC-MAIN-20240425063334-20240425093334-00482.warc.gz","language_score":0.923303484916687,"token_count":417,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__22652202","lang":"en","text":"Microtoroid optical resonators, when combined with frequency locking, balanced detection, and data processing techniques, are capable of label-free single molecule detection at attomolar concentrations in under 30 seconds. Dr. Su has developed such a system called FLOWER (frequency-locked optical whispering evanescent resonator). We discuss the principles of FLOWER, including noise analysis, and how, at such low concentrations, she can achieve sensing times on the order of seconds. In addition, she will discuss her ongoing work on using FLOWER for fundamental studies on taste, and a variety of applications including drug screening, medical diagnostics for ovarian cancer, and chemical threat sensing. She validates her technology against existing approaches and performs detection in complex biological fluids. Finally, Dr. Su discusses her next-generation sensing platforms, including how she combines FLOWER with frequency comb technology to enable simultaneous detection and absorption spectroscopy, our work on high-sensitivity photothermal spectroscopy, and our work towards a robust, portable, translatable device.\nJudith Su is an assistant professor in biomedical engineering and an assistant professor in optical sciences at the University of Arizona. Judith received her B.S. and M.S. from MIT in mechanical engineering and her Ph.D. from Caltech in biochemistry & molecular biophysics. Her background is in sensing, imaging, microfabrication, and optical instrument building for biological and medical applications. She is a recipient of an NIH R35 Outstanding Investigator Award and an American Society of Laser Surgery and Medicine Young Investigator Award. She was a Siegman International School on Lasers Lecturer and a Scialog: Chemical Machinery of the Cell Fellow. She is on the Board of Scientific Counselors for the National Institute for Occupational Safety and Health (NIOSH). She gave a keynote talk at SPIE Photonics West 2022 and is an incoming general chair for OSA’s 2023 Advanced Photonics Congress, Integrated Photonics Research (IPR) Conference.","domain":"optical_engineering"}
{"url":"https://ktcables.com.au/2015/06/18/new-kt-signature-l-e-d-truck-lamps-fitted-to-nolans-transport-trucks/","date":"2024-02-25T22:25:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474643.29/warc/CC-MAIN-20240225203035-20240225233035-00045.warc.gz","language_score":0.9363132119178772,"token_count":527,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__88297886","lang":"en","text":"- ADR & ECE Compliant\n- Patent Pending\n- Fully Submersible\n- Marketing within the light provides increased Brand Exposure to thousands of road users everyday. The only marketing that road users are forced to look at as brake and indicator lights are engaged.\n- Clearest Light on the Market. Uses advanced, Innovative LED Technology never seen before to provide widespread seamless light.\n- Advanced L.E.D Technology uses the L.E.D to project light at an angle that meets ADR standards rather than the conventional Trailer Light which relies on the patterns in the outer casing.\n- Virtually Indestructible Clear Polycarbonate Lens.\nKT SIGNATURE TRUCK & TRAILER LAMPS FEATURE SUPERIOR L.E.D TECHNOLOGY\nThe KT Trailer Lamp range was developed with the specific goal in mind of producing the very best performing trailer lamp available in the global market. It was determined that to do this, the output of the light had to be superior to any lamp currently available.\nIt was noted by the KT team that interior lighting for homes and buildings is very bright, smooth and soft. Yet for vehicle lighting, the light output is always oddly shaped, streaked with patterns and essentially not as effective as it could be.\nThis is generally because trailer lighting requires specific size housings which limits design techniques and the passing of ECE and ADR, further restricting what can be achieved.\nWorking within this framework, the strategy became about re-creating the light source itself, not the housing or the lens. The KT team then set about designing an all new Light emitting Diode, that, although all looking the same, can be changed internally to create different angles of light. This allowed us to step away from the use of lens optics and reflectors to direct the light.\nThe results in light output can be seen below, with the KT lamps delivering the most incredibly even light output. The performance gains of this technology ensures that the lamps pass ECE and ADR with ease, they are more noticeable from all angles on the road, making them safer. Another safety benefit is the use of clear lenses and housings, as the transition from clear to red or amber is so dramatic, the attention these lamps demand from road users is far greater than that of traditional lamps, further increasing road safety.\nVIEW OUR RANGE OF LIGHTS AVAILABLE BY DOWNLOADING OUR CATALOGUE:\nFor any inquiries, contact us on 1300 559 953 or email firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"https://entrepreneurnews.net/2019/04/26/how-a-joke-led-engineers-to-give-solar-cells-a-boost-with-caffeine-too/","date":"2020-12-01T17:24:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141681209.60/warc/CC-MAIN-20201201170219-20201201200219-00475.warc.gz","language_score":0.9479195475578308,"token_count":431,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__180170944","lang":"en","text":"It’s actually a bit of a tired old joke: See something that needs a little lift? Maybe it could use a cup of coffee. Hilarious.\nBut when engineers at the University of California-Los Angeles (UCLA) made the same quip, it led to a breakthrough in solar technology.\n“One day, as we were discussing perovskite solar cells, our colleague Rui Wang said, ‘If we need coffee to boost our energy then what about perovskites? Would they need coffee to perform better?'” recalled Jingjing Xue, a UCLA PhD candidate at UCLA.\nAs it turns out, the caffeine in coffee is an alkaloid compound, which can be used to improve the thermal stability of the perovskite crystal layer that actually harvests light in some solar cells. Researchers have tried introducing other compounds to the precursors of perovskite materials, but no one had worked with caffeine before.\nThe result was that caffeine interacted with lead ions in the layer to create a “molecular lock” that boosted the solar efficiency of the cells from 17 percent to 20 percent. The lock even persisted when the material was heated.\nThe team has published a study in the journal Joule.\n“Caffeine can help the perovskite achieve high crystallinity, low defects, and good stability,” said Rui Wang, who is also a PhD candidate in UCLA professor Yang Yang’s lab. “This means it can potentially play a role in the scalable production of perovskite solar cells.”\nThe researchers believe caffeine will likely only work with perovskite cells, which may give them an edge in the marketplace on top of the fact that the variety is already less expensive and more flexible than many other options.\n“We were surprised by the results,” says Wang. “During our first try incorporating caffeine, our perovskite solar cells already reached almost the highest efficiency we achieved in the paper.”\nThis article originally appeared on","domain":"optical_engineering"}
{"url":"https://rationalplaques.com/blogs/learning-center/what-is-a-cmos-camera","date":"2024-04-23T01:07:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818452.78/warc/CC-MAIN-20240423002028-20240423032028-00606.warc.gz","language_score":0.9060192108154297,"token_count":470,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__50234816","lang":"en","text":"Here are some key features and characteristics of CMOS cameras:\n- Image Sensor Technology: CMOS cameras use CMOS image sensors to capture light and convert it into digital signals. Each pixel on the sensor contains a photodetector and an amplifier, allowing for individual pixel readout.\n- Low Power Consumption: CMOS sensors consume less power compared to CCD sensors, making them more suitable for battery-operated devices like smartphones and portable cameras.\n- Fast Data Readout: CMOS sensors can read data from individual pixels quickly, making them suitable for high-speed imaging applications such as sports photography or video recording.\n- On-Chip Signal Processing: CMOS sensors often include on-chip processing capabilities, such as noise reduction and image enhancement, which can improve image quality.\n- Cost-Effective: CMOS sensors are generally less expensive to manufacture than CCD sensors, making CMOS cameras more affordable for consumers.\n- High Resolution: CMOS cameras are available in various resolutions, from low to high, making them versatile for different applications.\n- Versatility: CMOS sensors can be used in a wide range of applications, including digital cameras, camcorders, webcams, medical imaging devices, security cameras, and more.\n- Rolling Shutter: Many CMOS sensors use a rolling shutter mechanism, which means they capture images row by row rather than all at once (global shutter). This can lead to certain artifacts in fast-moving scenes.\n- Dynamic Range: CMOS sensors can have good dynamic range, allowing them to capture both bright and dark areas in a scene without losing detail.\n- Backside Illumination (BSI): Some CMOS sensors feature BSI technology, which improves light sensitivity and reduces noise, particularly in low-light conditions.\nCMOS cameras have evolved significantly over the years, and advancements in technology continue to improve their performance, making them a popular choice for various imaging applications. However, the choice between CMOS and CCD cameras often depends on specific requirements, such as cost, power consumption, and the intended use case.\nThe #1 source for QHYCCD astronomical and scientific CMOS cameras is ASTROFACTORS. They offer extensive knowledge of these cameras and the common software need, and when necessary, arrange for custom camera configurations.","domain":"optical_engineering"}
{"url":"http://kalteng.org/remote-sensing.php?newsID=4","date":"2023-09-27T05:56:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510259.52/warc/CC-MAIN-20230927035329-20230927065329-00552.warc.gz","language_score":0.8653703331947327,"token_count":519,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__135373184","lang":"en","text":"Application of Remote Sensing and GIS to monitor Peatland multi-temporal in Central Kalimantan, 11-1999\nProceedings of the International Symposium on Tropical Peatland TROPEAT,\nLANDSAT TM images. Several neighbouring nearly cloud free Landsat scenes (118-61 and 118-62) acquired in 1991, 1994, 1996, 1997, 1998 and 2000 which cover 65000 km2, are available to the Kalteng Consultants team.\nFurthermore other LANDSAT TM images are also available. Some areas covered by these images are evaluated and classified during an ongoing project. LANDSAT TM images offer the highest quality available in terms of vegetation classification and land use affordable mapping. The images have a ground resolution of 30 m (res. 15m) and 7 different spectral channels covering the whole range from the visible light to infrared and a thermal channel. Since the data are stored in a digital format it can be analysed by computer techniques.\nAll LANDSAT TM scenes are partly evaluated and classified. Change detection shows the development of this area. The channels of the Mega Rice Project are in this scene and the huge burned scars from the fires in autumn 1997. Radar Images: ERS-1 and ERS-2 SAR images. Major disadvantage of optical LANDSAT TM images for operational planning and monitoring is the frequent cloud coverage in tropical regions. The all-weather-capacity of SAR allows land surface mapping and monitoring under these conditions. ERS SAR images have the same spatial resolution as LANDSAT images (30m), however only one spectral channel. This limits the number of land use classes, which can be detected by this system to 8-12 classes. The ERS-1/2 receiving stations in Indonesia (Pare-Pare), Singapore (CRISP) and Thailand have recorded a set of ERS images covering the whole province of Kalteng, which allows mapping of regions about which no recent optical information is available. Kalteng Consultants has many ERS images on stock. Remote sensing processing Image processing Image classification Signature analysis Sensor fusion Geographical Information System (GIS) Recommendations, Thematic Maps, Reports, Workshops Ref.: Boehm, H.-D.V., F. Siegert (1999) Application of Remote Sensing and GIS to monitor peatland multi-temporal in Central Kalimantan, presented at TROPEAT, JSPS-Symposium, in Bogor 22-23 Nov 1999","domain":"optical_engineering"}
{"url":"https://www.moc1solutions.net/product-page/acti-e77-10mp-ir-4k-outdoor-dome-ip-security-camera","date":"2023-09-27T15:09:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510300.41/warc/CC-MAIN-20230927135227-20230927165227-00145.warc.gz","language_score":0.8757722973823547,"token_count":428,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__238921679","lang":"en","text":"The ACTi E77 Outdoor IR Dome 10MP IP Security Camera with Fixed lens is an outdoor dome camera, with a day and night function and a resolution of 10 megapixels. It offers 1080p HD images of 1920 x 1080 at 30 frames per second. It is IP66 and IK10 rated, weather-proof and vandal-proof, making it the perfect choice for outdoor surveillance. It uses a mechanical IR cur filter and 10 IR LEDs, giving it the ability to shoot in areas with intense back-lighting. It also offers a micro SD card slot for additional local storage along with a host of other advanced features.\nThe ACTi E77 Outdoor IR Dome 10MP IP Security Camera has a wide dynamic range of 65.2 dB, capturing images at varied light conditions. It has a progressive scan CMOS sensor that captures even moving images, and records in a minimum illumination of 0.1 lux color, and 0 lux in black and white. The camera can be board mounted and has a horizontal viewing angle of 101.4°, and its viewing angle can be adjusted to pan, tilt or rotate, according to your requirements. Its fixed iris lens has a focal length of f3.6mm/F1.8. Its efficient H.264 image compression reduces the requirements for storage compared to traditional surveillance technology, and makes it an important cost-saving feature. ONVIF compliance, white balance, auto gain control, flickerless, digital noise reduction, privacy masking, video motion detection, and PoE technology are the other useful features. The ACTi E77 Outdoor IR Dome 10MP IP Security Camera with Fixed Lens truly integrates premium solution in the IP surveillance market.\n- Progressive scan CMOS: captures still and moving images\n- WDR: captures images in varied light conditions\n- IP66 rated: protection against ingress of dust and powerful jets of water\n- Automatic Gain Control: maintains constant brightness level\n- Video Motion Detection: triggers alarm when activity is detected\n- Privacy Masking: allows concealment of private areas\n- Blue Iris Compatible","domain":"optical_engineering"}
{"url":"https://offrayoptical.com/products/half-dot-acetate-glasses-fg1241","date":"2023-12-07T12:39:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100674.56/warc/CC-MAIN-20231207121942-20231207151942-00440.warc.gz","language_score":0.8448934555053711,"token_count":99,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__211396952","lang":"en","text":"Made with premium materials, these glasses are durable and wear-resisting. The frame will leave you a deep impression at first sight. Designed with spring hinges and intertwine arms, this pair of eyeglasses is extremely versatile and comfortable.\nGender: Men RX Range:-20.00~+12.00\nPD Range:54~78Materials: Acetate\nHinge:Spring Shape: Geometric\nFrame Width: 140 mm Lens Width: 52 mm Bridge: 19 mm","domain":"optical_engineering"}
{"url":"https://rvgamepc.com/learn-about-super-retina-displays-on-smartphones/","date":"2023-01-29T05:35:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499700.67/warc/CC-MAIN-20230129044527-20230129074527-00087.warc.gz","language_score":0.8736332058906555,"token_count":928,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__154618608","lang":"en","text":"884 total views\nSuper Retina display is a trademark registered exclusively by Apple, used for the series of OLED screens on Apple products, which have a higher pixel density than traditional screens. In this article, we will learn what Super Retina screen technology has the highlights or limitations in the article below!\nfirstWhat is a Super Retina display?\nIntroduced for the first time with the release iPhone X in the year 2017. Instead of using background panels LCD As on previous products, this time Apple use technology diode organic glow (OLED) emits light through each pixel (without backlight) to deliver a particularly higher contrast ratio and better resolution and named this new display type Super Retina.\nAs of now (August 2021), the screen Super Retina fitted on the product Applee like: iPhone X, iPhone XS and iPhone XS Max. On the iPhone XR is again equipped with a screen Liquid Retina.\n2Highlights on Super Retina display\nBecause it does not use the backlight on the screen like other types of screens LCD usually, instead Apple used screen technology OLEDcan emit light through every pixel. Help save power consumption while maintaining high brightness and good contrast.\nBetter picture quality\nUsing technology OLED on the screen Super Retinashould bring deeper black, has a higher contrast ratio, wider viewing angle, and naturally faster refresh rate than monitors IPS LCD and technology generation LCD before.\nHas an increased contrast ratio up to 1,000,000:1using emission display technology makes the screen higher contrastblack is displayed by turning off individual pixels, making the displayed image more depth, providing an immersive experience when watching movies or playing games. more real.\nWider viewing angle\nScreen Super Retina provides a wide viewing angle without sacrificing image quality and sharpness relative to the screen LED Traditional by equipping screen technology OLED.\nCustomization in design\nRemoving the backlight and shutter layer means that manufacturers replace the fragile and heavy background glass on screens with panels OLED thin and light, making it easy for manufacturers to create thin and light phone.\n3Limitations on the Super Retina display\nLimited outdoor visibility\nBecause the backlight plate is removed and replaced by individual self-illuminating diodes that make the screen Super Retina Limitations on screen brightness compared to other I . display technologiesPS LCD before.\nColor displayed is not accurate\nUser rated this monitor pretty brilliant than normal, making the color not be accurate. Users often encounter situations like: You post a brilliant photo on social networks, edited on a product equipped with a Super Retina display, but your friends cannot see the brilliance as above. your device.\nBecause it is equipped with screen technology OLED, making this type of screen quite sensitive to humid environments, Apple has also improved its monolithic design, so this problem is not too worrisome. The concern here is technology OLED is that the organic diode degrades faster than most LCD and inorganic diode do reduce life expectancy of this display.\n4Compare Super Retina display with Liquid Retina display\nThe Liquid Retina display is also a screen exclusively released by Apple that uses LCD panels. Liquid Retina first appeared on the iPhone XR and iPad Pro in 2018.\nSuper Retina is the screen OLEDwhen Liquid Retina is the screen LCD. Screen pixel ratio Super Retina to be 458 PPI on both iPhone XS and XS Max, while the pixel ratio of Liquid Retina to be 326 PPI billionon iPhone XR and 264 PPI on iPad Pro 2018.\nScreen Super Retina technology equipment OLED with high contrast, high brightness and wide color support in the mobile industry. Display is better and images are also optimized than Liquid Retina.\nSuper Retina’s contrast ratio is 1,000,000: 1, And the contrast ratio of Liquid Retina to be 1400: 1. by being equipped with technology OLED so the contrast of the screen Super Retina higher, providing image visibility true and more natural.\nBecause of the technical characteristics of the technology OLED harder than technology LCD, makes the production cost of Super Retina more expensive than monitor Liquid Retina.\nHopefully, after reading this article, you have knowledge about Super Retina screens on Apple products. Thank you for following the article, see you in the next post!\n#Learn #Super #Retina #displays #smartphones","domain":"optical_engineering"}
{"url":"https://chiral-photonics.squarespace.com/company/","date":"2019-10-17T11:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986673538.21/warc/CC-MAIN-20191017095726-20191017123226-00538.warc.gz","language_score":0.9192033410072327,"token_count":1314,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__222398521","lang":"en","text":"Chiral Photonics (CPI), founded in 1999, designs, develops and produces fiber-based components and assemblies. CPI’s products and related services, include:\nMulticore fiber fanouts\nHigh density fiber arrays\nHigh temperature sensors\nOptical probing of photonic integrated circuits (PICs)\nFiber optic switches\nCPI continues to innovate, through its research and development programs, often together with industry and government partners, in a broad array of technological areas, including:\nFiber lasers and high power laser components\nSpace division multiplexing\nOptical probes for endoscopy and other medical and scientific applications\nHarsh environment fiber optic sensing\nNews and Events\nWorld Photonics Technology Summit 2019\n29-30 August 2019\nInvited Presentation: \"Pitch Reducing Optical Fiber Array – Bridging the Gap Between Fiber Infrastructure and Dense Multichannel Optical Interfaces\"\nPhotonics West 2019\n2 Feb 2019 – 7 Feb 2019\nSan Francisco, California, USA\n5-7 March 2019\nSan Diego, California, USA\nSponsors of the Pic Training Silicon Valley 2019, 28 January - 1 February, 2019\nPresentations on photonic integration cover all the material systems, whether Silicon, InP-based, or dielectrics such as TriPleX (SiO2/Si3N4). The training is supported by a broad consortium of companies and is hands-on as well as in-depth.\nSponsors of the PIC Workshop at OFC 2018, Wednesday, Mar 14, 2018, Room 29ABCD\nWednesday, March 14, 2017 from 5:45 to 8:30pm. Presentations on photonic integration including overview of (MPW) foundries, design & layout S/W, packaging, test & measurement, design houses, etc., with special focus on what is new in these areas.\nPIC Training Silicon Valley 2017\n13 Nov 2017 - 17 Sep 2017, Santa Clara, California, USA\nChiral Photonics is a sponsor and presenter at the PIC Training Silicon Valley 2017 in Santa Clara, CA.\nChiral Photonics presented “Photonic Integrated Circuit Packaging Fundamentals” at the meeting where there were presentations and hands-on training led by industry experts across a broad spectrum of innovating companies.\nPhotonics Summit and Workshop 2017\n06 Sep 2017 - 07 Sep 2017, San Jose, CA, USA\nChiral Photonics presented “Optical Input / Output Considerations for Photonic Integrated Circuit Coupling & Packaging” on September 6, 2017. Hosted by Cadence, Lumerical, and PhoeniX Software the Photonics Summit brings together developers, technology users, and industry experts for a full day of networking and education on the latest photonic tools and methodologies.\nWhite House Announces New Integrated Photonics Manufacturing Innovation Hub with Chiral Photonics as key partner.\nPine Brook, NJ, July 27, 2015.\nOptoDesigner 5 Adds Design Support for High Density Optical I/O and PIC Packaging, Chiral Photonics, Inc. Press Release, Pine Brook, NJ November 17, 2014.\nChiral Photonics introduces PROFA for high density, fiber-to-chip applications. Victor Kopp, Director of R&D, introduces the new technology (Video). OFC/NFOEC 2012 Conference, Los Angeles, CA, March 10, 2012.\n\"Chiral Photonics, Inc. demonstrates Pitch Reducing Optical Fiber Array (PROFA) enabling highly dense 2D fiber array interfaces\", Chiral Photonics, Inc. Press Release, Pine Brook, NJ February 7, 2012.\nCo-Founder, President, and Chief Executive Officer\nImmediately prior to co-founding Chiral Photonics, Dan served as VP of Operations and Advanced Development and a founder and director of Schick Technologies (since merged with Dentsply Sirona, Inc), a leading developer of digital radiography equipment. He began his career working in advanced packaging at IBM Research. Dan received an M.S. in Materials Science from Columbia University.\nCo-Founder and Chief Technology Officer\nAzriel brings over 30 years of research and industry experience. Presently, he is Distinguished Professor of Physics at City University of New York (CUNY) focusing on optical and microwave propagation, photon localization and lasing in random and periodic media, solid state and molecular physics, acousto-optic imaging, Raman scattering, coherent optical transient spectroscopy, magnetic resonance and photochemistry. He has published over 100 academic papers. Previously he was Senior Staff Physicist at Corporate Research Laboratories, Exxon Research and Engineering Company and a Researcher at IBM’s Almaden Research Center. Azriel holds a B.S. and Ph.D. in Physics from Columbia University.\nCo-Founder and Director, Research and Development\nBefore co-founding Chiral Photonics, Victor was a Post-Doctoral Researcher at CUNY. His research interests, which were presented in numerous publications, included wave propagation through periodic media, nonlinear optics and photonic devices. Together with Azriel Genack, he developed the basis for Chiral Photonics’ technology in CLC lasing. Prior to this, as a Senior Researcher at the Vavilov Optical Institute in St. Petersburg, he investigated the interaction of electron and Raman resonances and lasing in Raman-active crystals, and photo-induced second harmonic generation in glasses, work which led to authoring and co-authoring 11 patents. Victor earned an M.S. in physics from St. Petersburg University and a Ph.D. degree in laser physics from the Vavilov Optical Institute, Russia.\nJonathan Singer comes to Chiral Photonics from Schick Technologies, of which he was the VP of Engineering, co-founder, and director. At Schick he supervised over forty mechanical, electrical and software engineers, leading the development cycle of products. Prior to Schick, he served as a project engineer at Cox and Company. In his areas of expertise, x-ray analysis and chaotic systems, he holds a number of patents and has authored several publications . Jonathan received his B.S. from the Massachusetts Institute of Technology and M.S. from the University of Pennsylvania, both in Mechanical Engineering.","domain":"optical_engineering"}
{"url":"http://cometinstruments.com/index.php?route=product/product&product_id=425","date":"2020-05-25T08:28:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347388012.14/warc/CC-MAIN-20200525063708-20200525093708-00538.warc.gz","language_score":0.8157114386558533,"token_count":177,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__163860264","lang":"en","text":"The Bosch GLM 30 Laser Measure allows users to take distance measurements instantly and with ultimate precision. Simply press the measure button to activate the laser and begin measuring in real time. Put down the pad of paper and calculator as the laser measure calculates area, volume and indirect measurements. Backlighting allows user to see information in dark areas with better resolution. The GLM 30 measures to 100 feet.\nBOSCH GLM 30 Laser Distance Meter\n- Brands BOSCH\n- Product Code: GLM 30\n- Availability: In Stock\n- Ex Tax: Rs.2,444.00/-\nTags: Laser Distance Meter 30 Meter, Bosch Laser Distance Meter, 30 Meter Laser distance meter, 100 Feet laser distance meter, LASER MEASURE, laser measure, glm 30 professional, bosch glm 30, bosch glm 30 laser measure","domain":"optical_engineering"}
{"url":"https://ru.leica-camera.com/%D0%9A%D0%BE%D0%BC%D0%BF%D0%B0%D0%BD%D0%B8%D1%8F/%D0%9F%D1%80%D0%B5%D1%81%D1%81-%D1%86%D0%B5%D0%BD%D1%82%D1%80/%D0%9F%D1%80%D0%B5%D1%81%D1%81-%D1%80%D0%B5%D0%BB%D0%B8%D0%B7%D1%8B/(offset)/150","date":"2019-10-16T17:29:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986669057.0/warc/CC-MAIN-20191016163146-20191016190646-00424.warc.gz","language_score":0.8997553586959839,"token_count":1281,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__57900801","lang":"en","text":"201601.09.16 A new addition to the Leica T lens portfolio: the Leica APO-Macro-Elmarit-TL 60 mm f/2.8 ASPH. prime lens is available from today As of today, a new prime lens is available for the Leica T camera system – the Leica APO-Macro-Elmarit-TL 60 mm f/2.8 ASPH. This macro lens is considered to be the reference lens in the APS-C segment. It delivers macro exposures with a reproduction ratio of 1:1 and impresses with best imaging performance. Just like the Leica Summilux-TL 35 mm f/1.4 ASPH., the Leica APO-Macro-Elmarit-TL 60 mm f/2.8 ASPH. is available in a choice of black or silver.\n- 30.08.16 Masters of Photography: The Leica Gallery in Hall 1 at photokina 2016 presents a varied exhibition and stage programme As ‘Official Photography Partner of photokina 2016’, Leica Camera AG will be presenting the impressive ‘Masters of Photography’ exhibition in an almost 2,000 square metre Leica Gallery in Hall 1 of the fair with a total of 15 series of pictures and more than 400 photographs by acclaimed Leica S, SL, and M photographers. In addition to this, Leica Camera AG will be presenting the exhibition with the title ‘Upcoming Masters’ in a separate section of the gallery – this exhibition is the result of a collaboration between Leica, the Deutschen Gesellschaft für Photographie (DGPh – the German Photographic Society) and the Photoindustrie-Verband (PIV – The Imaging Association).\n- 19.08.16 The New Leica NOCTIVID More than a century of expertise in optical design and construction are the basis upon which Leica Camera AG (Wetzlar) has created a new and revolutionary generation of Leica binoculars: the Leica NOCTIVID family. These high-end binoculars represent a revolution in the field of viewing optics and offer discerning bird-watchers and wildlife and outdoor enthusiasts previously unimagined quality.\n- 28.07.16 New software and firmware updates for the LEICA SL improve the tethered shooting workflow Available from today – firmware update 2.1 and the software solutions Leica Image Shuttle 3.4 and the Leica Tethered Plug-in 1.1.0 for the mirrorless Leica SL further improve the professional workflow for the camera system. Registered camera owners can log in to the Leica Owner’s Area (https://owners.leica-camera.com) and download the new firmware and software or take advantage of the opportunity to have their camera brought up to date by the free update installation service offered in all Leica Stores.\nAra Güler receives the Leica Hall of Fame Award\nThe lifework of the famous Magnum photographer Ara Güler will be honoured with the Leica Hall of Fame Award and his photography will be celebrated by a major exhibition in the Leica Masters of Photography Gallery in the course of photokina 2016.\nAra Güler, arguably Turkey’s most eminent photographer, impressively portrayed life in the city of Istanbul, his birthplace and home, for over 60 years. He is world famous for his incomparable black-and-white images of the metropolis on the shores of the Bosporus from the 1950s and 1960s. Ara Güler (87) is also well known for his work as a reporter and photojournalist covering political affairs around the world and for his photographic interviews with many prominent politicians and artists of the period.\nLEICA Q firmware update 2.0 offers numerous new features\nThe latest firmware update for the Leica Q is available now as a download from the Leica website (www.leica-camera.com). Owners can update their camera with firmware update 2.0 and enjoy the benefits of numerous new features. Leica works constantly in close collaboration with users on the further development and optimisation of its products. Due to this policy, a number of improvements in this latest firmware update for the Leica Q are based on the recommendations and suggestions of our customers.\n- 20.07.16 Leica at photokina 2016 The focus of the Leica presence this year at photokina 2016 in Cologne will be on professional photography and the needs of professional users – and on the unique exhibition of photography in Hall 1 that Leica will be presenting as ‘Official Photography Partner of photokina 2016’.\n- 19.07.16 LEICA APO-SUMMICRON-M 50 mm f/2 ASPH. is now also available in silver anodized finish As of today, the Leica APO-Summicron-M 50 mm f/2 ASPH. is now also available in a silver anodized version. Thanks to the perfect interaction of all parameters, from optical design and choice of materials to sophisticated and elaborate manufacturing and finishing, this high-performance lens is considered to be the reference lens amongst standard focal lengths. It impresses with exceptional imaging performance and sharpness that captures and resolves even the finest details.\n- 06.07.16 Master of Photography: Leica and Sky Arts Search for Europe’s Best Photographer Leica Camera AG, the German premium-segment manufacturer of cameras and sport optics products, is Sky Arts’ exclusive technical provider for Master of Photography, the first dedicated TV talent show for photography, to be broadcast from the 21st of July in Italy on Sky Arte HD, in the UK and Ireland on Sky Arts and in Germany and Austria on Sky Arts HD. A new unique international production, that aims to promote and enhance photography in all its forms of expression, through the TV medium.\n- 01.07.16 New: the Leica Rangemaster CRF 1600-R compact laser rangefinder With the Leica Rangemaster CRF 1600-R, Leica Camera AG (Wetzlar) presents a new laser rangefinder. Its versatility, compact size and essential ballistic functions make the CRF 1600-R and its expanded technical features the ideal model for hunters who attach importance to reliable distance measurement and the determination of the equivalent horizontal range.","domain":"optical_engineering"}
{"url":"https://bellapellecc.com.au/mark-vu/","date":"2023-12-04T13:48:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00026.warc.gz","language_score":0.914249837398529,"token_count":241,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__125174462","lang":"en","text":"The MARK●VU is a precision-built facial skin analysis system with top-of-the-line optics. That allows for accurate and swift comparison between the pretreatment findings and the clinical results after any procedure.\nThrough the use of an array of multi-spectrum light-emitting diodes (LEDs) as the light source. Multi-directional polychromatic (multi-coloured) LED light is more true to life than daylight or “white light”.\nGives even more coverage over the whole face, than any flashlamp or other single-tube light source. And allows the system to deliver consistent and accurate results.\nThe system uses multiple LED arrays delivering ultraviolet (UV) and visible light. With an added three-dimensional effect it enables an analysis of a variety of components in your skin.\nSuch as pigmentation, pores, roughness, wrinkles and abnormal blood vessels. You will then be able to see, in both a two-dimensional high-definition monitor and a hard copy.\nThe changes that have occurred as the result of your treatment or procedure accurately and in real-time, compared to your pretreatment condition.","domain":"optical_engineering"}
{"url":"https://www.damrob.com.au/services/surveying/3d-laser-scanning/","date":"2022-08-11T16:54:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571483.70/warc/CC-MAIN-20220811164257-20220811194257-00700.warc.gz","language_score":0.933150589466095,"token_count":210,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__145643202","lang":"en","text":"3D Laser Scanning\n3d laser scanning enables us to create survey accurate 3d models of almost anything, and is ideally suited to capturing extremely detailed information for documentation, design & construction purposes.\nThe technology delivers increased accuracy and safety over conventional capture methods, and offers huge time and cost savings for clients who have already embraced 3d design software into their workflow.\nA 3d Laser scanner records data points similarly to a reflectorless total station, however where a total station relies heavily on user input for sighting and code input for each point recorded, the laser scanner will autonomously record millions of points in a 360 degree arc from each scan location.\nScans are then referenced (merged) and processed into a “point cloud” which can either be supplied as is to the client, or further processed into a variety of deliverables such as 2d floor plans, 3d renderings and walkthroughs.\nEven without 3d capable software, clients can still interrogate a point cloud for dimensions with free software.","domain":"optical_engineering"}
{"url":"https://www.sjdelectrical.co.uk/services/led-lighting/","date":"2019-08-21T23:41:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027316549.78/warc/CC-MAIN-20190821220456-20190822002456-00247.warc.gz","language_score":0.9624909162521362,"token_count":629,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__198287761","lang":"en","text":"If you have been looking for ways to save money on your energy bills, you may have heard that LED lighting is the leading power-saving illumination option. LEDs are the most energy-efficient, eco-friendly type of lighting which offers a multitude of benefits.\nThe most notable benefit of LED lighting is that they have a long operational life expectancy, even as long as 100,000 hours. LED lights don’t burn out or break like your standard light bulb. They simply use less power and become less bright over a longer period of time.\nLED lighting is between 80% -90% efficient when compared to traditional light bulbs. 80% of the energy is converted into light and only 20% or less is converted into heat or other forms of energy. More of the energy used by traditional bulbs is converted into heat rather than light, in fact, up to 80% of the electricity used by light bulbs is lost as heat.\nLong operational lifespans of LED light bulbs enable users to benefit from increased energy efficiency and also cut down the maintenance and replacement costs. Imagine being able to reduce your energy consumption by 30% and not having to change a single light bulb for 100,000 hours; with this in mind, can you afford not to switch?\nLED lights do not contain the chemicals and materials, such as mercury, that conventional light bulbs do. As such, they are free of toxic chemicals and are entirely recyclable. Installing LED lighting will, in fact, reduce your carbon footprint by 30%.\nLED lights are built using sturdy components which are highly durable and capable of withstanding very rough conditions. Their resistance to shock, vibrations, and impact makes them perfect for outdoor lighting systems which are exposed to inclement wind and weather.\nOnly very little infrared light and UV emissions are produced by LED lighting. As such, LED lighting is ideal for illuminating goods and materials which are heat or light sensitive\nLEDs can be placed in any shape to create a beautiful illuminated piece. They can also be controlled individually, giving you full control of light, its distribution and also the colour. LED systems can produce amazing effects which please the eye, influencing your mind and mood.\nOperational in extreme environments\nThe ability to operate in very hot or cold climates makes LED lighting the preferred choice over traditional lighting which can be adversely affected by extreme temperatures.\nImmediacy and frequency\nLED lights brighten instantaneously when turned on, making them perfect for infrastructure, which can mean use as signal and traffic lights.\nSwitching LED lights on and off does not affect the lifetime of the fitting or the amount of light produced. Traditional bulbs can take a while to brighten and their life expectancy can be drastically reduced by frequent use.\nIf you are local to Burton upon Trent and would like to discover more about LED lighting and how you could benefit from increased efficiency and lower costs, speak to the team at SJD Electrical Contractors today. We have over 14 years of experience in our industry and our professional, fully qualified and experienced electricians are always ready to help you save money on your energy bills.","domain":"optical_engineering"}
{"url":"http://gaiascience.com.sg/productdetails/luminar-3030-free-space-aotf-nir-analyzer","date":"2020-01-17T18:57:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250590107.3/warc/CC-MAIN-20200117180950-20200117204950-00454.warc.gz","language_score":0.8837542533874512,"token_count":283,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__55299361","lang":"en","text":"Brimrose's solid-state Luminar 3030 AOTF-NIR Free Space Process Analyzer is built to be placed directly into the production line.\nIts rugged design and solid-state technology allows an installation right into the production environment and eliminates the use of fiber optic lines. This high-speed NIR Analyzer is based on diffuse reflectance optics, and can be integrated in a vast variety of housings to match your process area classification.\nBrimrose offers this rugged analyzer in a variety of different configurations to meet the high demand of different industries and applications.\nThe Luminar 3030 Free Space process analyzer meets all requirements and standards for on-line applications in the pharmaceutical industry and is built to work reliably even in the toughest environmental conditions. The integrated Luminar 3030 is insensitive to vibrations and ambient light and offers outstanding S/N ratio combined with ultra high speed scanning rates and makes it possible to analyze in real time, on-line and with laboratory accuracy.\nPharmaceutical: 100% inspection of solids, pastes, creams and powders\nAgricultural/Food: on-line food analysis for fat, protein, moisture\nPolymer: in-site measurement of pellets, films, and coatings\nTextile: cotton/polyester ratio directly in the web\nDrying Process: direct placement on spray or fluid bed dryers","domain":"optical_engineering"}
{"url":"https://cwrelectronics.com/product.php?id=70079","date":"2018-12-10T15:16:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823348.23/warc/CC-MAIN-20181210144632-20181210170132-00208.warc.gz","language_score":0.8166251182556152,"token_count":650,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__140119214","lang":"en","text":"Starting a marine business has never been easier – click below to complete a CWR Wholesale Distribution dealer application!\nAt CWR, we believe conducting business should be simple. With CWR Wholesale Distribution as your drop shipping source, you have a powerful team of full-service wholesale marine distribution experts working for you. With over 300 manufacturers, CWR offers a variety of assorted products for not only marine use, but also camping, sailing, sporting goods, paddle sports, watersports, cycling, training/fitness, hunting, fishing, consumer electronics, automobiles, recreational vehicles and more. CWR is also one of the leading drop-shippers in the marine industry and will drop ship to any location in the world. CWR’s drop ship program is stress-free with no extra fees or minimum order sizes, all while using your own shipping label and packing slip. Become a CWR Wholesale Distribution Dealer today!\nFLIR M400XR Stabilized Thermal/Visible Camera w/JCU & Marine Fire Fighting Software - 640 x 480\nM400XR Stabilized Thermal/Visible Camera w/JCU & Marine Fire Fighting Software - 640 x 480\nMulti-Sensor Marine Thermal Night Vision\nThe FLIR M400XR thermal night vision camera is a versatile, high-performance pan/tilt marine camera system designed for best-in-class short and long range target identification. The FLIR M400XR's advanced 640 x 480 sensor delivers crisp thermal video images in total darkness and low-light conditions. An integrated HD color visible camera and tight-beam LED spotlight augment target identification for added safety.\nThe FLIR M400XR has a continuous optical zoom lens (up to 4X) that allows operators to see other vessels and targets at longer ranges. Active gyro-stabilization ensures a steady image, plus radar tracking and video tracking keep potentially dangerous targets in view at all times.\n- High intensity LED spot light\n- M400 - HD Color Lowlight | FLIR Marine HD Color lowlight camera with 30x optical zoom\n- M400XR - High resolution thermal sensor | FLIR Marine High resolution 640 x 480 thermal sensor with optical zoom 18x to 6x horizontal field of view\n- Gyro Stabilised | FLIR Marine Gyro-stabilised to ensure steady viewing in heavy sea conditions\n- Waterproof enclosure | FLIR Marine Rugged, waterproof gimbal enclosure with 360° pan and +/-90° tilt capacity\n- Easy to use joystick | FLIR Marine Easy-to-use joystick control unit\n- Radar tracking identifies and tracks specified radar returns, enhancing vessel safety when visibility is low\n- M400XR with integrated video tracking. Lock on and automatically follow objects as long as they're in view of camera\n- Digital Detail Enhancement (DDE) assures a crisp thermal image, even in scenes with extreme temperature dynamics\n- Short and Long-range Detection - Recognize marine traffic and key landmarks at night\n- Thermal and Visible-Light Payloads - Combination thermal detection and visible identification\n- Enhanced Target Identification - Operators can precisely locate and track object","domain":"optical_engineering"}
{"url":"https://www.fivestarwindowtinting.net/3m2.html","date":"2019-04-19T10:16:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578527566.44/warc/CC-MAIN-20190419101239-20190419123239-00325.warc.gz","language_score":0.9434896111488342,"token_count":259,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__140303280","lang":"en","text":"11362 Monier Park Place, Rancho Cordova 95742\nWhen it comes to a non - metallized window film, don't settle for anything less! 3M Color Stable's.\nWhat makes 3M Color Stable unique? Its revolutionary nano-carbon polyester. It provides an incredible look, amazing color stability, and is non-metallized to ensure no signal interference.\nWhile most other window film companies buy their polyester from someone else, 3M makes its own polyester. During this process, 3M patented a technology for producing its own nano-carbon polyester. This revolutionary and unique process, allows for maximum heat rejection without a metallized film, which can interfere with radio, satellite or high end technology in your vehicle. It also gives the film a stylish look with outstanding color stability. In fact, its so advanced that in time based tests, 3M Color Stable films never turned purple, while conventional dyed films will do.\nThe film is designed to reject the sun's heat that is produced from visible light. Color Stable rejects a lot of the suns heat coming through your windows. Color Stable window films also provide significant glare relief, allowing only 5% to 50% of the light into your car.","domain":"optical_engineering"}
{"url":"https://www.labroots.com/trending/neuroscience/15753/nanolaser-designed-function-brain-tissue","date":"2021-10-27T02:56:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588053.38/warc/CC-MAIN-20211027022823-20211027052823-00626.warc.gz","language_score":0.9384109377861023,"token_count":459,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__105497626","lang":"en","text":"Scientists have developed a nanolaser (miniaturized laser) that can function inside living tissues. According to researchers, the laser is about 1/1,000th the thickness of a single human hair. This means that the laser can fit inside living tissues and sense disease biomarkers or treat neurological disorders that result from dysfunctional brain structures deep inside the brain, such as epilepsy.\nIn a recent paper published in Nature Methods, Drs. Teri Odom and P. James Schuck from Northwestern and Colombia Universities showcased a nanolaser made mostly of glass (a biocompatible material) that can both excite at longer wavelengths of light and emit short wavelengths. The depth of tissue penetration is key.\n\"Longer wavelengths of light are needed for bioimaging because they can penetrate farther into tissues than visible wavelength photons,\" said Northwestern's Teri Odom, co-author of the paper and Charles E. and Emma H. Morrison Professor of Chemistry in Northwestern's Weinberg College of Arts and Sciences. \"But shorter wavelengths of light are often desirable at those same deep areas. We have designed an optically clean system that can effectively deliver visible laser light at penetration depths accessible to longer wavelengths.\"\nImportantly, given its small size, the nanolaser can function in tight spaces. Many biological applications, such as use in living tissues, require small lasers. The problem is that these lasers are much less efficient because they require much shorter (and ultimately more damaging) wavelengths, such as ultraviolet light, to power them. Researchers solved this issue by using a method called photom upconversion. Briefly, during upconversion, low-energy photons are absorbed and converted into one (more powerful) photon. The team started with low-energy, “bio-friendly” infrared photons and upconverted them to visible lasers.\n\"Our nanolaser is transparent but can generate visible photons when optically pumped with light our eyes cannot see,\" said Odom. \"The continuous wave, low-power characteristics will open numerous new applications, especially in biological imaging.\"\nThese new nanolasers are \"Excitingly, our tiny lasers operate at powers that are orders of magnitude smaller than observed in any existing lasers,\" Schuck said.","domain":"optical_engineering"}
{"url":"http://nanocon2014.tanger.cz/cz/zobrazit-seznam-prispevku/3210-transient-pump-probe-absorption-spectroscopy-of-semiconductor-nnanotetrapods/","date":"2022-06-29T22:09:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103645173.39/warc/CC-MAIN-20220629211420-20220630001420-00262.warc.gz","language_score":0.9031513333320618,"token_count":451,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__263933046","lang":"en","text":"|LEONOV Mikhail||St.Petersburg National Research University of Information Technologies, Mechanics and Optics|\n|Spoluautoři RUKHLENKO Ivan, NOSKOV Roman, BARANOV Alexander, GUN'KO Yurii, FEDOROV Anatoly|\nSemiconductor nanostructures of complex geometries are a topical subject of nanophotonics due to their variable optical properties. Nanotetrapods made of four quantum rods linked by a quantum dot are of particular interest from the practical viewpoint owing to their inherently strong optical anisotropy. Another reason of their practical significance is that the nanotetrapod's topology offers quite a few degrees of freedom (associated with the possibility to alter the sizes and shapes of the dots, the length and diameter of the rod, as well as the composition of both kinds of constituents) for flexible manipulation of its optical response. Despite these facts, the physical properties and electronic dynamics of nanotetrapods are poorly understood. A better understanding of these features may be achieved via the analysis of the nanotetrapod’s optical response measured using the time-resolved pump–probe spectroscopy. We develop a unified theory of transient pump–probe absorption spectroscopy of a semiconductor nanotetrapod. The physics underlying this spectroscopic method is treated within the frame of the density matrix formalism, while assuming absorption of the probe pulse to be induced by the pump pulse resonant to a certain interband transition of the nanotetrapod. We elucidate the physical conditions under which the dependence of the absorbed probe energy on the delay time between the pump and probe pulses is described by several exponential functions with exponents proportional to the energy relaxation rates of the nanotetrapod’s electronic states. Furthermore, we show that the transient absorption spectroscopy allows one to reliably determine the energy relaxation rates of the nanotetrapod’s electronic states. The derived analytical expressions for the absorbed energy of the probe’s pulse can be used for studying the dynamics of quantum transitions in semiconductor nanotetrapods.","domain":"optical_engineering"}
{"url":"https://theses.lib.vt.edu/theses/available/etd-08142006-235542/","date":"2017-07-20T22:46:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549423512.93/warc/CC-MAIN-20170720222017-20170721002017-00509.warc.gz","language_score":0.8563824892044067,"token_count":447,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__227982495","lang":"en","text":"Title page for ETD etd-08142006-235542\n|Type of Document\n||Study of Multimode Extrinsic Fabry-Perot Interferometric Fiber Optic Sensor on Biosensing\n||Master of Science\n||Electrical and Computer Engineering\n|Cooper, Kristie L.\n|Pickrell, Gary R.\n- Electrostatic self-assembly (ESA)\n- Multimode Fiber Optic Sensors\n- White-light Interferometry\n|Date of Defense\nThe electrostatic self-assembly (ESA) method presents an effective application in the field of biosensing due to the uniform nanoscale structure. In previous research, a single mode fiber (SMF) sensor system had been investigated for the thin-film measurement due to the high fringe visibility. However, compared with a SMF sensor system, a multimode fiber (MMF) sensor system is lower-cost and has larger sensing area (the fiber core), providing the potential for higher sensing efficiency.\nIn this thesis, a multimode fiber-optic sensor has been developed based on extrinsic Fabry-Perot interferometry (EFPI) for the measurement of optical thickness in self-assembled thin film layers as well as for the immunosensing test. The sensor was fabricated by connecting a multimode fiber (MMF) and a silica wafer. A Fabry-Perot cavity was formed by the reflections from the two interfaces of the wafer. The negatively charged silica wafer could be used as the substrate for the thin film immobilization scheme. The sensor is incorporated into the white-light interferometric system. By monitoring the optical cavity length increment, the self-assembled thin film thickness was measured; the immunoreaction between immunoglobulin G (IgG) and anti-IgG was investigated.\n|| Approximate Download Time\n| 28.8 Modem\n|| 56K Modem\n|| ISDN (64 Kb)\n|| ISDN (128 Kb)\n|| Higher-speed Access\nIf you have questions or technical\nproblems, please Contact DLA.","domain":"optical_engineering"}
{"url":"https://www.pro-gamer.co.uk/see-the-very-first-picture-and-first-selfie-from-james-webb/","date":"2022-06-29T00:42:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103619185.32/warc/CC-MAIN-20220628233925-20220629023925-00102.warc.gz","language_score":0.9500294327735901,"token_count":575,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__142622726","lang":"en","text":"The James Webb Area Telescope is in its ultimate orbit and has its science devices turned on, but it surely’ll nonetheless be a number of months earlier than the world’s strongest area telescope is able to accumulate science information. That’s as a result of the telescope not solely wants to achieve a secure temperature but in addition as a result of it must undergo the cautious and sophisticated means of aligning its mirrors. However that doesn’t imply there’s nothing to see from this model new telescope — in reality, NASA has simply launched each the primary picture captured by the telescope and even a selfie snapped by one of many telescope’s cameras.\nThe primary picture won’t appear to be a lot, but it surely’s a sign that Webb’s NIRCam instrument is working to gather mild from its goal — a very vivid star known as HD 84406. The 18 factors of sunshine within the picture characterize every of the 18 segments of the telescope’s main mirror, that are steadily being introduced into alignment by making nanometer changes. “Your entire Webb staff is ecstatic at how effectively the primary steps of taking photos and aligning the telescope are continuing,” mentioned Marcia Rieke, principal investigator for the NIRCam instrument in a statement. “We had been so completely happy to see that mild makes its approach into NIRCam.”\nThe picture is a mosaic, stitched collectively from an enormous 54 gigabytes of uncooked information captured over a 25-hour interval. That is only a portion of the complete mosaic, displaying the identical star imaged 18 instances. That is invaluable information for the staff as they work on aligning the mirrors to deliver the telescope into focus.\nAs well as, the NIRCam instrument used a particular lens to snap a picture of the telescope itself, displaying the distinctive hexagon-shaped mirror segments within the telescope’s first selfie. You’ll be able to see one of many segments glowing brightly as that section was pointed towards a star, whereas the opposite segments are at the moment at totally different alignments.\nOver the subsequent few months, the photographs captured by Webb will develop into sharper and present extra particulars because the mirrors are aligned and the telescope’s different three devices attain their secure temperatures and begin capturing information as effectively. For now, the photographs present that the telescope is wholesome and working for the primary time. “Launching Webb to area was, in fact, an thrilling occasion, however for scientists and optical engineers, this can be a pinnacle second, when mild from a star is efficiently making its approach by means of the system down onto a detector,” mentioned Michael McElwain, Webb observatory challenge scientist at NASA’s Goddard Area Flight Middle.","domain":"optical_engineering"}
{"url":"http://best-binocular.blogspot.com/","date":"2017-05-23T14:32:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607647.16/warc/CC-MAIN-20170523143045-20170523163045-00607.warc.gz","language_score":0.9226746559143066,"token_count":704,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__48594976","lang":"en","text":"The 18x50 Image Stabilized binoculars feature a shock-resistant, water resistant rubber coating for a nonslip grip, better durability, good handling, and for protection against rain & splashing water. You don't have to worry about the optics misting up if you get caught in the rain and still need to view. These binoculars render high-magnification and wide-field viewing. Controls for focusing and image stabilization are centrally placed and accessible by both hands. These binoculars provide long eye relief for added comfort and allows the use of eyeglasses without vignetting of the image.\nWhat is an Image Stabilizer?\nThe more powerful the binoculars, the more shakings are magnified. As a result, even a little sway of your hands will shake the image in the binoculars a great deal. Usually, we can bear this image shake with binoculars up to 7x magnification. The image shake would quickly get unbearable With higher-magnification binoculars.\nHowever, with Canon's Image Stabilizer turned on, the image shake becomes tolerable even at magnifications of 15x and 18x. Such high magnifications were previously unthinkable in a pair of binoculars without the use of a tripod. TheImage Stabilizer steadies the image instantly and brings out the top-notch optical performance of the lenses.\nImage Stabilization and More\nCanon's IS technology is outstandingly good at eliminating the sway problem and is widely applied by the television industry with Canon's professional broadcast quality video recording equipment. An exceptional VAP (Vari-Angle Prism) corrective IS system sits within the objective lens group and the porro prism on each side of the binoculars. Within one-thousandths of a second of the binoculars being moved from their optical axis by vibrations, a detection system activates the IS mechanism. The VAP shape modifies to refract or 'bend' the light path by exactly the right amount, thus fully compensating for the vibration.\nSuper Spectra Coating\nA number of optical elements affect the brightness of an image, including the total of incidental light that is reflected by the lens. An uncoated lens will reflect away as much as 8% of the incidental light, significantly dimming the image. Canon's Super Spectra Coating prevents that reflection.\nWhat do the numbers mean?\n8x25? 15x50? The two numbers used to describe any pair of binoculars are their magnification — 8x, 12x, 15x and so on — and the diameter of their objective lenses — 25mm, 36mm, 50mm, and so on. The larger the first number is, the larger the object will appear in the objective lens. To illustrate, if you use a 10x lens and view at an object that is 200 yards away, it looks to be the same size as an object placed just 20 yards away. The second number, the size of the objective lens, is crucial because the larger the objective lens, the more light it can accept for brighter, more detailed images, and the better suited they will be for low light situations.\nReagan Senoron is an expert author about Technology and Product Review articles.If you want to learn more about Canon binoculars figure and want a video demo, please visit the link. You can find consumer electronics supplies there too.","domain":"optical_engineering"}
{"url":"http://elder-geek.com/2010/08/glasses-less-3d-hdtv-line-coming-from-toshiba/","date":"2024-04-18T08:10:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817200.22/warc/CC-MAIN-20240418061950-20240418091950-00732.warc.gz","language_score":0.946553647518158,"token_count":199,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__50327044","lang":"en","text":"With the black-lash against its required eye-wear almost as strong a deterrent as its price, electronics companies have found it difficult to market the current model of 3D TVs to the public. In an approach similar to Nintendo’s 3DS, in fact using the exact same technology on a larger surface, Toshiba has responded to this problem by developing the first line of 3D TVs to not require any sort of glasses. Set for a pre-Christmas release in Japan, the line consists of three models, each projecting light in a wide spectrum (a “light field display”), allowing multiple users enjoy the stereoscopic effect from multiple angles without eyewear.\nOn a more technical level, the technology uses what is referred to as a “multi-parallax” method of display, and helps achieve the 3D effect over a 30 degree viewing angle. This is also rumored to reduce eye stress and shift the 3D image depending on viewer position.","domain":"optical_engineering"}
{"url":"http://www.nutri.com/stars/","date":"2013-06-19T23:54:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368709906749/warc/CC-MAIN-20130516131146-00098-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9220719933509827,"token_count":823,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__60766289","lang":"en","text":"The first paper, \"Maximum Sensitivities of Optical Direction and Twist\nMeasuring Instruments\", Nov. 1964, found the maximum precision with which\nan optical instrument can determine the direction of a light source and\nthe orientation of a source about an axis parallel to the line of sight.\nEquations are derived that include the sizes and shapes of the one or more\ntelescope apertures, and whether they are coherently coupled. In this\npaper, it was also demonstrated that the ability to measure the phase of a\nbeam of light exactly equals the ability to measure the orientation of its\nplane of polarization - and which also equals the ability to measure its\nintensity. This is a surprising, and beautiful, result - the same equation\ngoverning all 3 measurement limits:\nEach limit = 0.5 / [square root of the number of detected photons]\nThus, if we detect ¼ million photons, we can measure the phase of a beam of light, and its plane of polarization, to .001 radian [about 3 arc minutes] and the intensity to 1 part in 1000.\nThe 2nd paper, \"Limits to which Double Lines, Double Stars, and Disks can be Resolved and Measured\", Aug. 1967, determined the limit to which we may resolve and measure, through a circular diffraction-limited aperture, the angular separation of double-line and double-star sources, and the angular diameter of disk sources. The variables considered, in order to derive the equations for these limits, were: diffraction, total number of photons detected, and the intensity ratio of the components of the double sources.\nIn the case of a diffraction-limited telescope, with its circular aperture, attempting to resolve a double star, the equation for determining the resolution limit is merely the product of three terms:\n1. The Rayleigh Resolution Limit, in radians, given approximately by the wavelength of light divided by the diameter of the aperture. For instance, if the wavelength is half a thousandth of a millimeter [yellow-green], and the aperture diameter is 100 millimeters, then the resolution is 1/200,000th radian, or about 1 second of arc.\n2. The 2nd term quantifies the effect of the intensity ratio, R, of the two stars constituting the double star we are trying to resolve. This term is merely the square root of R, plus its reciprocal, all divided by 2. When R=1, the term equals 1. But when R=14, the term, and thus the resolution of the telescope, doubles [from one second to two seconds in the above example].\n3. The 3rd and last term is simply the inverse cube root of the number of detected photons. Thus, in the above example, 8 times as many photons would be required to make up for R increasing from 1 to 14. Note that just eight photons are required to resolve two stars one arc second apart, even with one star 14 times brighter than the other. But with 8 thousand million photons detected, the above optical system could theoretically resolve these two stars just 1/1000th arc second apart.\nRadiation noise [the random fluctuation of detected photons] is assumed to be the only source of noise.\nRegarding the diffraction pattern of a double star source, one might naturally assume that the resolution information we are seeking would emanate from the bright rings of the pattern. However, from the equations of the 2nd paper, it can be shown that most of the desired measurement and resolution information resides in the dark rings. In fact, the smaller the angular separation of the 2 sources, the greater the percentage of information coming from the dark rings. When the angular separation is, for instance, .001 arc second, very sharp peaks of information appear at the very center of the dark rings, with little noticeable information even immediately adjacent to the peaks.\n© 1970 Oscar Falconi, PO Box 3345, Saratoga CA 95070, U.S.A.","domain":"optical_engineering"}
{"url":"http://grozi-tracking.blogspot.com/2010/01/detection-of-lines-from-captured-image.html","date":"2018-07-19T20:43:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676591296.46/warc/CC-MAIN-20180719203515-20180719223515-00542.warc.gz","language_score":0.9317518472671509,"token_count":176,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__145157095","lang":"en","text":"By the end of week 1, I built a Hough Transform component to detect lines from captured image by web camera (Microsoft-VX 6000).\nIt could detect lines corresponding to edges of shelves, under certain conditions. Now I don't have any data-sets available, such as still images and movies at a grocery store. So I tested it by using a desk in my laboratory.\nThis is an example of captured image with two boxes of RITZ.\nAnd here is the result of Hough Transform. This software detects lines whose slopes are under 30 degrees to the horizontal line, so that it could detect those corresponding to edges of shelves.\nThe red line and the blue line are corresponding to edges of the desk. And a green circle is a \"middle point\" of these lines. In this case, the circle represents the location of edges well.","domain":"optical_engineering"}
{"url":"https://www.bdonix.com/product-category/accessories-mobile/led-ring-lights/","date":"2021-04-21T05:17:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039508673.81/warc/CC-MAIN-20210421035139-20210421065139-00153.warc.gz","language_score":0.653052806854248,"token_count":341,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__15382577","lang":"en","text":"Showing all 6 results\nKey Features: Model: HQ-18 Color: Black Size: 18inches/ 45cm Lighting Color: Cool White IP Rate: IP54 Shape: Round\nKey Features: Model: MJ-33 Size: diameter 26cm Lamp beads: 128pcs Color temperature: 3000K-6000K Color rendering index: >90 Input voltage: 5V Frequency: 50-60HZ Lumens: 1000LM Interface: USB (with PTZ + mobile phone clip) Maximum power: 20W Light color: cold color/warm color/natural color+RGB light CRI: Ra> 90 Adjustable colors: adjustable brightness and\nKey Features: Product Name: Ring Light Power: USB Power White LED: 28 LED Yellow LED: 28 LED Modes: 3 Modes Brightness Level: 10 Levels\nKey Features: Product Name: Ring Light Power: USB Power White LED: 35 LED Yellow LED: 35 LED Modes: 3 Modes Brightness Level: 10 Levels\nLED Quantity: 12 cold + 12 warm, 24 in total Light Source Power: 12W Clamp Material: Carbon Steel Color: Black Power Supply: USB 5V Warm Tip: Please bend the arm to “S” or “Z” or “3” to better support your phone, avoid holder shaking and falling down.\nW49 Ultra Bright LED Video Light With 3 Shoe Mount Mini LED light with 49pcs high quality LED beads, lifetime can reach 50, 000hrs 5.5W high power, 0 – 100% dimmable for different brightness 6000K natural and soft white light, CRI≥90 present vivid object color With hot shoe base on","domain":"optical_engineering"}
{"url":"https://www.ictrdf.org.pk/component/publication/?view=publication&layout=newsdetail&id=83&Itemid=182","date":"2017-10-23T11:49:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187825900.44/warc/CC-MAIN-20171023111450-20171023131450-00145.warc.gz","language_score":0.9205242395401001,"token_count":220,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__208512538","lang":"en","text":"Fast Track Diagnostics Ease TB Dangers\nBrainchild of Dr. Muhammad Imran Cheema, a portable optical sensor is being developed for on-site diagnosis of tuberculosis (TB); a disease which is known to every second household in Pakistan.\nUsing laser Raman spectroscopy, a simple breath test will analyze a patient for rapid, on-site diagnosis. The inner walls of the collection chamber they breathe into are chemically treated to capture the organic TB biomarkers present in the patient breath. A laser beam is then passed through the chamber, and the transmitted light is detected as a function of the raman shifts, determining the frequency.\nThe diagnosis of TB is then performed based on the chemically-specific spectroscopic signatures of the TB biomarkers present in the breath. This process will provide a novel TB sensor which is non-invasive, accurate, sensitive, and label free. By developing an easy to use non-invasive optical sensor, immediate TB diagnosis can be provided without the aid of specialized laboratory personnel. This is also easily portable to remote areas with lack of healthcare infrastructure","domain":"optical_engineering"}
{"url":"https://danrascal.com/blog/page/2/","date":"2021-10-28T07:17:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588282.80/warc/CC-MAIN-20211028065732-20211028095732-00465.warc.gz","language_score":0.9481746554374695,"token_count":111,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__69394668","lang":"en","text":"Capturing light is at the heart of any video production. Cameras rely on sensors designed to be sensitive to light in order capture an image either still or moving. It wasn’t long after the invention of camera technology that image-makers began to notice the impact of light sources on their images.\nBut even today, hundreds of years after the invention of cameras, understanding for the practice of lighting is still developing. With the addition of digital workflows, many established practices have also been updated to accommodate the trade offs when working without film.","domain":"optical_engineering"}
{"url":"https://sgnutsandbolts.com/products/bigjigs-wooden-magnifier","date":"2023-03-26T08:43:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945440.67/warc/CC-MAIN-20230326075911-20230326105911-00393.warc.gz","language_score":0.9274144172668457,"token_count":103,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__80702523","lang":"en","text":"This Wooden Magnifier is perfect for children to get closer to nature. The magnifier includes 2x magnification, with insets of 4x and 6x magnification. It also features a wooden handle and a cord, making it excellent for exploratory play.\nThe magnifier is perfectly sized for small hands, and it measures 12 x 23cm long.\nSuitable for children from the age of 3 years.\nThe photo is a representation of the product. Actual product may vary slightly in size and colour.","domain":"optical_engineering"}
{"url":"http://drm-assistant.com/articles/factors-affect-quality-of-phone-photo.html","date":"2017-02-23T00:28:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501171066.47/warc/CC-MAIN-20170219104611-00148-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.9222040176391602,"token_count":580,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__72857941","lang":"en","text":"The Factors that can affect the quality of mobile phone pictures\nThe quality of mobile phone photos is a popular thing to say, and in our daily life, “XX pixels” is the most common word of publicity for mobile phone sales. When we want to buy a new phone, most of us think that the higher pixel, the better quality of the photos, but the facts say otherwise as there exists other factors that can affect the quality of mobile phone photos like photosensitive element, lens... Read on to have a clear understand of the factors affecting imaging quality.\nGenerally, for two phones with the same pixels, the one which has larger sensor will have better photo quality, that’s why the quality of photo taken by 20 million pixels full frame digital SLR is better than the card camera or mobile phone with the same pixels. In short, high pixel do not represent good effect, unless it reaches a certain magnitude. Now that the pixel is not the key to photo quality, the high pixel on mobile phone will achieve litter? Not really！\nFor example, let’s make a comparison the photo taken by iPhone 6 (1/2 inch sensor with 8 million pixels) with the photo taken by Samsung Galaxy S6 (1/1.9 inch sensor with 16 million pixel), when the image is enlarged to 100% by us, the photo details of iPhone 6 is much better than Samsung Galaxy S 6. Of course, if you just view your photos on the mobile phone, 8 million pixels and 16 million pixels make little difference. In addition, lens aperture, optical anti shake and imaging software are also the key to the quality of photo, keeping reading and I will tell you…\nHere I will go over an example that demonstrates lens aperture, optical anti shake and imaging software are also the key to the quality of photo! It is not difficult to find that almost all the latest smartphones (like Samsung Galaxy S6, LG G4) are equipped with an aperture lens and high pixel photosensitive element, these are all used to improve the quality of mobile phone picture. Besides, better Image processing software and optical anti shake function are also key to influence the quality of mobile phone camera. Below I provide you with a worked example to the contrary!\nAlthough HTC One M9 abandoned the low pixel UltraPixel camera and use 20 million pixels back illuminated sensor, because of the lack of optical anti shake function, it just brings a tiny improvement in performance of photo. In simple terms, if you want to buy a better camera phone, you cannot simply judge from the pixel or a parameter, the most important is the comprehensive quality of mobile phone. If possible, learn more details of the phone’s imaging sensor, the size, the number of pixels, the lens aperture value and some other functions before placing an order. That’s all!","domain":"optical_engineering"}
{"url":"http://www.patentarcade.com/2015/04/new-case-syncpoint-imaging-llc-v.html","date":"2017-05-23T04:55:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607369.90/warc/CC-MAIN-20170523045144-20170523065144-00381.warc.gz","language_score":0.9152088761329651,"token_count":209,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__110139386","lang":"en","text":"1. A method for remotely controlling a computer having an associated screen for displaying output from the computer and having an internal cursor generated by the computer, the method comprising:\ndetecting at least one property of an external cursor and position of the external cursor relative to the output from the computer;\ngenerating a command to move the internal cursor to a position on the screen corresponding to the position of the external cursor; and\ngenerating a command for the computer based on the at least one detected property of the external cursor.\n[t]he invention includes a computer connected to a projector which projects an image of the computer output onto an external screen. A camera is used to capture an image of the projected computer output. An optical pointer, such as a laser pointer, is used to generate and transmit an external cursor having various properties, such as color, shape or intensity. The image captured by the camera is used to detect and process at least one property of the external cursor to generate a corresponding command or commands to control the computer.","domain":"optical_engineering"}
{"url":"https://matarikinetwork.com/is-20000-lumens-brighter-than-10000-lumens/","date":"2022-05-18T03:29:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662521041.0/warc/CC-MAIN-20220518021247-20220518051247-00298.warc.gz","language_score":0.9000653028488159,"token_count":1205,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__91425596","lang":"en","text":"Is higher the lumens brighter?\nLumens measure how much light you are getting from a bulb. More lumens means it’s a brighter light; fewer lumens means it’s a dimmer light. Lumens let you buy the amount of light you want. So when buying light bulbs, think lumens, not watts.\nWhich lumens are brightest?\nCurrently, the brightest LED bulb used for general use is rated at 5500 lumens (although there are some consumer flashlights sold with higher lumen ratings).\nIs 10000 lumens bright for headlights?\nWhat are the brightest LED headlights on the market? The brightest LED headlights on the market usually provide 5,000 to 6,000 lumens per light or 10,000 to 12,000 lumens per set. Which is brighter: 6000K or 8000K? Both 6000K and 8000K are bright and high kelvin (K) ratings for headlights though their hue differs.\nAre LED lumens brighter?\nWhich type of light is brightest? When compared to other types of lighting product, LED lights are the most energy efficient and offer a brighter light for the same wattage. Good quality LED fixtures now output around 170 lumens per watt; a fluorescent puts out around 110.\nHow bright is 12500 lumens?\nBRIGHT LIGHT The 90 watt has over 12500 Lumens. 12500 Lumens can replace a 250 Watt METAL HALIDE light, 175 Watt CFL or 750 watt Incandescent. 5000K light color ensures a bright clear light.\nHow many lumens do I need?\nLumens calculation summary\nMultiply your room square footage by the footcandle requirement. For example, a 100-square foot living room, which needs 20 footcandles, will need 2,000 lumens. A 100-square foot dining room, which needs 40 footcandles, will need 4,000 lumens 2 (see PDF and complete footcandle index).\nHow bright is 2000 lumens floodlight?\nA 2000 lumen LED bulb is equivalent to a 150-watt incandescent light bulb.\nHow bright is 2000 lumens?\nEnergy Star Bulbs\n4 more rows\nHow many lumens is street legal?\nThe light output from each of the lamps shall not exceed 2513 lumens. Any motor vehicle may also be equipped with a pulsing system to indicate deceleration in which an amber light is center mounted on the rear of a vehicle.\nHow many lumens is good for a headlight?\nLumen counts for headlamps can range from 25 lumens, all the way up to 1400+ lumens. In all reality though, 300 lumens is all the average person needs for everyday use.\nHow many lumens is a car LED headlight?\nHow Many Lumens Can An LED Headlight Produce? When trying to answer the question of how many lumens an LED headlight can produce, it can be a little complicated. On average, 2,000 – 4,000 Lumens is common range for many headlights. However, the output of an LED headlight kit is dependent upon many factors.\nWhat is 220 lumens in watts?\nConverting Lumens to Watts\n1 more row\nIs 5000 lumens a lot?\nHow Much Light is 5000 Lumens? 5000 lumens is a lot of light. It’s about as much light as you would get from five 100 watt incandescent bulbs or ten 60 watt CFLs. It is also around the same brightness as a single 400-watt metal halide bulb.\nHow bright is 7000 lumens?\n7000 lumen is good for a projector, but it can be a little too much for average kind of use such as home gaming on a dark room, students, home theater or camping. But they work very well outdoors with a lot of ambient light and also with the sun still out.\nWhat light is the brightest?\nLED vs Incandescent Bulbs\n|An energy-efficient bulb that emits more lumens per watt||A standard light bulb that’s less expensive than other bulbs|\nIs 200 lumens bright?\n200 Lumens is a low level of light for LED, CFL or incandescent lighting. It’s suitable for reading and more decorative accent lighting but not much else. For more practical uses you would want to go up to around 500 lumens minimum before it becomes effective enough in most cases.\nWhat’s the brightest light bulb?\nThe Brightest Household LED Bulb: The Philips 5000 Lumen LED Bulb is the brightest LED bulb — this is a huge bulb (5.28 x 5.28 x 12.13 inches ). The Brightest “Warm White” LED Bulb: The SANSI 27W A21 Dimmable LED Light Bulb. This bulb is warm white and produces 3500 lumens. It is available for about $58.\nIs 800 lumens very bright?\nLumens is the unit measurement of brightness, with 1 lumen equalling the brightness of 1 candle, so 800 lumens has the brightness of 800 candles. 800 Lumens is a good level of light for LED, CFL or incandescent lighting.\nWhat does 20 lumens mean?\nA lumen measures the amount of light that comes from a bulb. It refers to a light bulb’s brightness, intensity of light and visible light emitted. A standard 40-watt (40W) bulb is equal to 400+ lumens. Typically, the higher the wattage, the higher the lumens, and the more light output.\nHow strong is 1000 lumens?\nThe Brightness of a 1000 Lumen Flashlight. This type of flashlight allows you to see objects from a far distance.","domain":"optical_engineering"}
{"url":"https://www.cae-systems.de/en/applications/application-soundcam-in-the-automotive-industry-bsrnvh.html","date":"2024-03-02T08:50:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475806.52/warc/CC-MAIN-20240302084508-20240302114508-00098.warc.gz","language_score":0.9028227925300598,"token_count":248,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__141932892","lang":"en","text":"Follow us on\nSoundCam in the automotive industry - imaging BSR and NVH\nReal-time high-resolution imaging of sound sources with handheld SoundCam. SoundCam images highly transient noise sources as well as stationary sounds. It especially performs great on detection of Buzz, Squeak, and Rattle (BSR) noise sources as well as the visualization of Noise, Vibration, and Harshness (NVH) sources.\nWhy does SoundCam help?\n- Real-time imaging is making measurements easy and speeds up the workflow (no preparation necessary)\n- The SoundCam is a small handheld device, which allows on the fly measurements even in small spaces e.g. interior\n- High Acoustic frame rates are crucial for transient sounds e.g. squeak and rattle noise\n- Since the SoundCam is handheld it allows you to instantly move closer to the source which improves spatial resolution\n- The SoundCam enables objective recording and visual document so that subjective assessments by individuals are avoided\n“With the real-time localization combined with the imaging, the SoundCam facilitates measurements and accelerates the entire workflow to the factual documentation of the results in video, image, and sound.”","domain":"optical_engineering"}
{"url":"https://lxp.montaggimobilitorino.it/110-degree-field-of-view-camera.html","date":"2021-05-17T01:00:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991921.61/warc/CC-MAIN-20210516232554-20210517022554-00068.warc.gz","language_score":0.9177112579345703,"token_count":1920,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__173463604","lang":"en","text":"110 degree field of view camera\n- Cisco ap3g2 k9w7 tar.default download\n- Oct 30, 2020 · On that basis, it’s not unknown for positioning errors to occur. Wisenet PTZ PLUS cameras, which have a pre-set accuracy of ±0.1 degrees, are able to detect if they’re not precisely aimed at the specified field of view and will move within one second to the correct position. Other key features of the new cameras include:\n- In CCTV Field of View depends on a number of factors such as the sensor format, the focal length of a lens, and the distance from the objects. Also modern cameras with short lenses have non-standard wide angles (like 110 degrees), so only a FOV calculator with a built-in database of camera models...\n- Suit for Raspberry Pi cameras which feature infrared night vision function: 100 degree field of view, two pieces of LED is required to get wider field of view, up to 160 degree; Supported cameras: RPi Camera (E), RPi Camera (F), RPi Camera (H) How to Use. Connect the Infrared LED Board to the camera PCB by screws\n- Adjusting the Field of View is a great way to include more content in a camera view without distorting the image. Incremental Rotate Angle defines how many degrees the camera rotates each time you Tilt, Orbit, or Dolly side to side using the keyboard, toolbar buttons, or menu.\n- Its field of view is the widest currently available at 180 degrees, and it has motion-triggered recording. A home security camera records video footage of your home and property that you can view on a smartphone, tablet, or computer from anywhere using an internet connection.\n- Jan 31, 2020 · Field of View It’s a good idea to choose a peephole viewer with a reasonably wide viewing angle so you can see a good area around the door. Some offer a full 180-degree field of view, whilst others cover a smaller area.\n- Dec 18, 2020 · Field of View Every camera has its field of view listed in degrees, usually listed as diagonal. The wider the number, the wider the field of view and the more the camera can see. Typically speaking, 110-degrees is the minimum you want, with 120-degrees pulling in a bit more. Go for 130-degrees or higher if you want to see a lot of what’s ...\n- Expect most nighttime security cameras to feature a field of view between 110 degrees and 120 degrees, which should be enough range to cover a broad swath of your front yard.\n- Apollo 16 Pan Camera frame 4618 - EVA1 (1.0 Mb tiff) This is figure 3 in Chapter D1 \"Field Geology of the Apollo 16 Central Region\" in the USGS Apollo 16 Professional Paper. Scan by Eric Jones Apollo 16 Pan Camera frame 4618 - North Ray and Ravine\n- Nov 25, 2020 · It should be noted that the viewing angle for the CS-2 rearview backup camera is 110 degrees, which may be too narrow for drivers who want a very wide field of vision.\n- See full list on ooma.com\n- A wide 160 to 180 degree field of view is required to track adjacent lanes and a range of 40 to 60 meters is needed to find space between vehicles. Finally, let's discuss the lane change maneuver and consider the following scenario.\n- LIMITED-TIME OFFER: FREE 3 Month Dash Cam Pro Trial! Field of View: 110 degrees. G-Sensor: Yes. Recording Resolution: 640x360. Works with all vehicle classes. Works with or without an ELD. Requires mobile app and Encompass® subscription: Yes.\n- Type in an angle (in degrees) that represents how wide you'd like your view to be, and press Enter — this is your field of view. For a 45 degree FOV, you'd type The larger the angle, the more you'll be able to see. SketchUp's default FOV is 35 degrees, but 60 degrees is much handier for interior views.\n- How much is my guitar worth serial number\nCz ultimate hunting rifle gunbrokerBG662-K36W is a high-end 4K scouting camera and captures 36MP photos and UHD 4k videos. The trail camera uses 940nm LED lights, which enable it to take photos and videos at night and not be discovered by animals. BG662-K36W has waterproof grade of IP66 and it behaves excellent both in day and night and can work normally in rainy and snowy weather. The lens of this hunting camera is 110 degree wide angle, which is developed by Boly itself. On a full frame camera, a 50mm fixed lens has a 47-degree field of view. That 47-degree field of view is roughly what we see with our own eyes. But, put on a crop sensor camera, that same 50mm lens has a different field of view. Now, there are different levels of crop, but assuming the camera has a crop factor of 1.6x, the field of view lessens ...\nInternational dt466 ecm wiring diagram\n- A 160-degree field of view is relatively wide, and there's two-way audio. It requires an Arlo Smart Hub to work. Arlo: A wireless, weather-resistant camera that records in 720p HD video (as opposed to 1080p or full HD), has a 110-degree field of view, digital zoom, night vision, and local storage.Performance: High definition 720p video resolution at 30 frames per second. 110 degree field of view camera. Can support up at a 32GB memory micro SD memory card and record up to 3 hours of video footage.Features: Camera automatically powers on and off with vehicle ignition. Magnetic camera mount attaches to windshield, allows for camera…\n- May 02, 2018 · Guajardo advertised these prototype lenses as offering a \"140-degree\" FOV, which greatly exceeds the existing 110-degree maximum in both Oculus Rift and HTC Vive.\n- Jun 16, 2020 · Field of view (FOV) is the amount of game view that is on display during a game. Wikipedia has an introduction to field of vision in video games FOV options are crucial for using ultra-widescreen or multi-monitor resolutions in games.\nHow to fix a stripped screw hole in aluminum storm doorConnect denon receiver to heos app\nMakita battery compatibility chartAcs ole miss\nControl the camera’s functions via IR remote or UVC protocol. Super-high SNR with advanced 2D and 3D noise reduction. 120 degree wide-angle field-of-view. Easily mounted on monitors using standard damping rotary-shaft support.\nY8 2 player fireboy and watergirl 6Reset samsung s7 edge password\nUsers can also control exposure compensation, white balance, and ISO, and operate using a 90-, 120-, or 140- degree field of view. The largest change between the 2 Vision and the 2 Vision+ is the technology supporting the camera. The 2 Vision’s camera was stabilized only on the tilt axis with a tilting range of 60 degrees. Operators now have the ability to go from 2D to 360 degrees! The CoreX2 is the largest Field of View OASIS that measures multiple dimensions on a part to an accuracy of up to +/-.0002 inches. With the addition of the NEW Motorized Rotary Stage, parts can now be rotated a full 360-degrees to get profile images and measurements from e\nVhdl stopwatchLesson 2 skills practice complex fractions and unit rates answer key\nThe camera has a 110-degree field of view and provides up to 30 feet of infrared night vision. A microphone on the front and a speaker on the back of the cylinder allow for two-way communication.\nTech bits bytech game controller with adjustable suction triggersBusch light sign\nOct 28, 2020 · In comparison, the second-gen Wyze Cam only had a 110-degrees field-of-view. Along with an increased field-of-view, Wyze has also made improvements to the camera’s frames per second capabilities. The v3 can capture 20fps in daytime and 15fps in nighttime, as opposed to 15 and 10fps. Horizontal field of view in degrees: shutter_speed: float: 60.0: The camera shutter speed in seconds (1.0 / s) iso: float: 1200.0: The camera sensor sensitivity: fstop: float: 1.4: Defines the opening of the camera lens. Aperture is 1 / fstop with typical lens going down to f / 1.2 (larger opening). Larger numbers will reduce the Depth of Field ...\n12 gauge wireAlpha wave frequency\nTo record these images, the camera was connected to an iDVR-PRO HD surveillance DVR. 2.8mm Lens. This first image was captured with the camera lens set at 2.8mm. You can see that the 2.8mm setting provides an approximate 95-degree field of view. The garbage dumpster in the background is located 90 feet away from where the camera is mounted.","domain":"optical_engineering"}
{"url":"https://topconhealthcare.lat/en/products/vt-10/","date":"2023-03-20T16:38:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943484.34/warc/CC-MAIN-20230320144934-20230320174934-00122.warc.gz","language_score":0.8827121257781982,"token_count":250,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__223428807","lang":"en","text":"Reliable Vision Tester\nThe VT-10 is Topcon’s basic, reliable and no-nonsense vision tester. It has a wide array of lenses in order to perform all the refractive tests you need.\nThe VT-10 is equipped with a cross cylinder that automatically rotates in conjunction with the set cylinder axis. Special gearing automatically synchronizes the rotation of the loop each time the cylinder axis correction is changed. Easy convergence system A convergence system allows natural conditions for near testing. Multicoated lenses for superior optical performance. The coating eliminates flare, ghost images and reflections. The multicoated lenses assure clearer, brighter images with improved contrast.\n- Wide testing range\n- Synchronized cross cylinders\n- Convergence system\n- Multicoated lenses\n- Easy to operate\nNot all products, services or offers are approved or offered in every market, and products vary from one country to another. Contact your local distributor for country-specific information.\nRequest more information today\nWhether you have product questions or are ready to purchase, we are standing by to help.\nFill out the form below and someone from our team will be in touch soon. For technical support, please click here.","domain":"optical_engineering"}
{"url":"http://www.photographydailynews.com/2012/09/fujinon-lenses-xf-14mm-xf-18-55mm/","date":"2022-05-21T13:29:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662539101.40/warc/CC-MAIN-20220521112022-20220521142022-00005.warc.gz","language_score":0.9017813205718994,"token_count":591,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__215284800","lang":"en","text":"Fujifilm is widening the XF lens range for X-Pro mirrorless cameras featuring the Fuji X mount with the addition of a wide-angle lens, the XF 14mm F2.8R and the first zoom lens for the Fuji X series, the XF 18-55mm F2.8-4R LM OIS, that inaugurate the new LM autofocus motorisation.\nFujinon XF 14mm F2.8R\nAs expected, Fujifilm comes with the promised lens, the wide-angle 14mm F2.8R. The R stands for “Aperture Ring” which is a key asset to the X-Pro mirrorless cameras UI. This extra short-focal length prime lens becomes a 21mm once mounted on a X-mount X-Pro1 or X-E1 camera. Its optical built of 14 elements in 10 groups has 2 aspherical lenses and 3 ED glass lenses in order to minimize both chromatic aberrations and distorsion. The fugure that Fujifilm told me regarding the distorsion of this 21mm equivalent lens are impressive if true. The Fujinon XF 14mm F2.8R has a circular aperture made of 7 blades.\nFujinon XF 18-55mm F2.8-4R LM OIS\nThe Fujinon XF 18-55mm F2.8-4R LM OIS is the first X mount zoom lens for X series cameras. Let me guide you through its specs while looking at its nick name :\n- 18-55mm : it is a 27-84mm standard zoom lens mounted on the APS-C cameras it is designed for.\n- F2.8-4 : with a gliding aperture, it remains pretty fast, especially at wide-angle, and will beat all basic APS-C 18-55mm kit competitors lenses both DSLR and mirrorless cameras.\n- R : the R stands for the manual aperture ring. It this case, as the max aperture is changing while you zoom in and out, the lens barrel does not show the aperture values. But you can zoom and control the aperture setting through this ring. I tried it last Friday in London at Fujifilm’s press event. Works fine.\n- OIS : fast lens, yes, but also opticaly stabilized. I like that.\n- LM : that is the new stuff ! LM for Linear Motor, the new autoficus drive, built of a dual motorization system for lightning fast focusing. Should be able to focus as fast as 0.1s ! It is also very quiet and therefore suitable for video recording.\nThe lens will be sold as a bundle with the Fuji X-E1 for €1,299 or $1,399.","domain":"optical_engineering"}
{"url":"https://hcelos.com/index.php?route=product/product&path=354&product_id=525","date":"2023-10-03T00:15:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511023.76/warc/CC-MAIN-20231002232712-20231003022712-00510.warc.gz","language_score":0.8118659257888794,"token_count":533,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__121117755","lang":"en","text":"MONOCULAR MICROSCOPE (NATIONAL MODEL 131)\n- Expiry Date: 0000\n- Availability: In Stock\nThe is a budget-friendly microscope designed for high school use. Featuring a design focused on safety and effective use.\nThe microscope's optics include DIN 4x, 10x, and 40xR achromatic, parfocalled, parcentered, color coded objectives. A widefield 10x eyepiece with a revolving pointer sits at a 45° incline and can be rotated 360° for sharing by multiple students.\nWhen it comes to focusing, the Model 131 is both precise and controlled. The slip clutch prevents damages to the unit from over focusing, while the safety rack stop prevents damage to slides and objective lenses. The tension adjustment eliminates stage drift, while the low position and fine focus controls allow students to get an accurate view of specimens.\n· Widefield 10x eyepiece with revolving pointer. Accepts optional #965-160 eyepiece reticle\n· 45° inclined viewing head rotates 360° for easy repositioning of eyepiece and sharing by more than one student\n· DIN 4x, 10x, and 40xR objectives are achromatic, parfocalled, parcentered, color coded\n· 3-hole nosepiece is ball-bearing mounted for more precise alignment, has positive click stops\n115V 20 watt tungsten illumination, condenser and blue filter, base-mounted on/off switch, heavy duty 3-wire cord. Convenient \"grabber\" clip on plug lets you wrap the cord around microscope and secure in place by pushing cord into clip for easy storage. No bulky cord hanger needed\n· Low position coarse and fine focusing controls\n· Stage moves up or down, eyepiece and body remain fixed\n· Slip clutch prevents damage to focusing system\n· Tension adjustment eliminates stage drift\n· Safety rack stop prevents damage to slides and objective lenses\n· Large 4.3 x 4.7\" / 110 x 120mm stage, with locked-on, spring mounted stage slips, drilled and tapped to accept optional mechanical stage\n· Built-in 0.65NA condenser lens\n· Calibrated 5-hole disc diaphragm\n· Rugged cast metal, gray enamel finish\n· Base: 5.25 x 7\" / 133 x 175mm\n· Height: 14.2\" / 360mm; Net weight: 6.8 lb / 3.1kg","domain":"optical_engineering"}
{"url":"http://zyci.com/laser-marking-cutting-engraving/","date":"2018-06-21T09:55:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864139.22/warc/CC-MAIN-20180621094633-20180621114633-00083.warc.gz","language_score":0.854824423789978,"token_count":393,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__78193528","lang":"en","text":"Laser Marking and Laser CuttingZYCI uses high-end fiber laser technology to provide precise laser marking services for a wide range of applications at our facility in Atlanta, Georgia. Laser marking is an elegant way to permanently mark part numbers, serial numbers, logos, instructions, warnings, etc. Laser marking is much preferred as opposed to impact or dot peen marking. Since laser marking is lightly etching the surface it does not create the stresses in the part inherent with impact and mechanical marking. Laser marking is often also referred to as laser etching and laser engraving. ZYCI also provides laser cutting services. Laser cutting is an excellent and efficient way to cut 2D parts from a variety of materials including aluminum, steel, brass, plastic and a host of other materials. Tolerances can be as close as +/-.003\" on 2D profiles. Up to 1/2\" thick steel can be laser cut. We need a 3D model or a 2D vector file (DXF or similar format) in order to program the laser to make your parts.\nMaterials Acceptable for Laser Marking and Laser Cutting\nGET A QUOTE FOR LASER MARKING OR LASER CUTTING\nCarbon Fiber Carbon Nanotube Clear Coat Anodized Aluminum Cobalt Chrome Steel Delrin Compacted Powder Iron w/Iron Phosphate Coating Copper DAP - Diallyl Phthalate GE Plastics Polycarbonate Resin 121-R Glass Filled PEEK\nGlass Filled Telfon Hard Coat Anodized Aluminum Machine Tool Steel Magnesium Metal Plated Ceramics Molybdenum Nickel Plated 1215 Mild Steel Nylon Polybutylene Terephthalate Polysulphone\nRynite PET Santoprene Silicon Carbide Silicon Steel Silicon Wafers Nickel-Chromium Super Alloys White PEEK Yellow Chromate Aluminum Zinc Plated Mild Steel","domain":"optical_engineering"}
{"url":"http://dentistbraincandy.com/ep104/","date":"2022-11-29T14:53:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710698.62/warc/CC-MAIN-20221129132340-20221129162340-00288.warc.gz","language_score":0.948288083076477,"token_count":111,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__165491446","lang":"en","text":"EP104: Epic Laser Pro – The Latest in Diode Laser Tech\nI purchased a new toy for the office and you may have guessed it is an Epic Laser Pro. This is not your mother’s laser and it quite the piece of techno and I discuss the laser and the differences and uses of this machine. It is surprisingly small and lightweight and very useful for surgical applications in dentistry. I also discovered that these lasers can scorch your retina from 15 feet away if you don’t follow the rules and wear the safety glasses!","domain":"optical_engineering"}
{"url":"https://luckysiteses.com/types-of-indoor-fiber-optic-patch-cords/","date":"2024-04-19T01:58:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817253.5/warc/CC-MAIN-20240419013002-20240419043002-00174.warc.gz","language_score":0.9200961589813232,"token_count":1366,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__157825856","lang":"en","text":"Types of Indoor Fiber Optic Patch Cords\nThe fiber patch cord also called fiber jumper or fiber cable, is a length of optical fiber cable terminated with fiber optic connectors at each end. It can be used to connect different fiber optical interface equipment to achieve high-speed and stable data transmission.\nThe patch cords can be divided according to the outer jacket material, such as ordinary type,low-smoke halogen flame-retardant type(LSZH),OFNP,Armored type.\nMultimode fiber patch cables have a larger core which allows multiple light modes to be transmitted within. This means that they are better suited for networking over shorter distances, such as within a building or campus. They also have lower attenuation rates, and are more immune to noise.\nOur black bulk 62.5/125 OM1 fiber optic patch cords have water blocking Aramid yarn and premium ceramic ferrules, which offer superior precision. They have an indoor plenum rated jacket which makes them suitable for use in all indoor environments. The jacket is printed with a color code that indicates fiber and connector type. This helps to reduce confusion and prevent miswiring. These patch cords can be used for extending the range of existing multimode plant, as well as connecting new single mode equipment to existing multimode plants.\nBonelinks offers a complete line of singlemode fiber patch cables featuring premium connector options that deliver indoor-outdoor-fiber-optic-cable-non-armored enhanced performance in a wide range of applications. These high-speed fiber optic cables can support long-distance data transmission over extended distances without loss of fidelity.\nA single-mode cable has a narrow core that can carry only one mode of light, which makes it ideal for broadband Internet connectivity. Compared to multimode optical fiber, which can support multiple light propagation modes, single-mode fiber has lower signal loss and wider bandwidth capacity.\nOur stock of single-mode fiber patch cords features LC and SC connectors on both ends, making it easy to connect them to compatible equipment. These standardized connectors are designed and polished to minimize back reflection, which can reduce network throughput.\nThe fiber patch cable, also known as a fiber jumper or optical cable, is a fiber optic cable terminated with fiber optic connectors on both ends. It is designed for indoor applications. There are two major types of fiber patch cables: multimode and single-mode. The differences between these fiber cables are based on the fiber mode, cable structure, connector types, and connector polishing types.\nHOLIGHT’s SC to SC multimode duplex patch cords feature SC connectors on both ends and offer high bandwidth and low attenuation. They are ideal for connecting data center equipment and enhancing Gigabit Ethernet speed in the network.\nThese fiber cables have a 3mm indoor plenum (OFNP) jacket that allows them to be used in all indoor environments. They include premium precision connectors and Corning Infinicore glass.\nFiber Optic Patch Cords are a type of fiber cable with connectors on both ends that connects to devices. They are used to transmit data, video and voice services between locations. They are available in a wide variety of lengths and jacket material options to meet any application need.\nThe ST connector (abbreviated as Straight Tip) is a bayonet-style plug and socket with a twist-on/twist-off mechanism. It is used on single-mode optical fiber and can be used in both ethernet and telecommunication applications.\nThe 9/125 OS1 single-mode duplex patch cables use high-quality ST connectors and LSZH jacket. They are individually examined and tested to ensure optimal insertion loss. These cables are suitable for connecting 4G and LTE wireless base stations to FTTA equipment. They also work well in remote radio units (RRUs) on cell towers.\nLC fiber optic patch cords feature a small form factor connector that is popular in high-density network environments. These patch cables are available in simplex and duplex configurations. A simplex patch cable has one connector on each end, while a duplex patch cord has two connectors on each end to accommodate data transmission in both directions.\nThe LC connectors on these patch cables are easy to install and handle, making them a great choice for high-density network applications. They also have automatic shutters that open and close to prevent dust and debris from entering the connectors.\nThis indoor/outdoor multimode duplex OM2 fiber patch cable features Corning optical fiber and a black OFNR riser rated PVC jacket. The cable has ceramic ferrule SC connectors on each end, and each connector is color coded for identification. The cable is sturdily constructed and thoroughly tested to ensure that it meets industry performance standards. Test results are included with each cable.\nMPO fiber patch cords feature push-pull tab connectors that make it easier to make connections in high-density data center environments. They also provide 24 times the density of traditional LC connections and reduce circuit card and rack space requirements.\nTo connect MPO patch cables, you must first understand the polarity of the connector. Each connector has a key that can be positioned in one of two positions: “key up” and “key down.” Once the key is plugged in, the PIN pins on the connector will align correctly with those on the adapter.\nMPO trunk cable is a multi-fiber cable with an MTP(r) connector on both ends. It is commonly used for 40G and 100G applications in data centers, central offices, and other high-density wiring environments. It can support both single-mode and multi-mode wavelengths.\nUniboot fiber patch cords streamline the installation process and improve cable management. optical-loopback-cables-module These cables combine the transmit and receive fibers in a single connector. The technology can also reduce tangled and messy cabling infrastructures in data centers.\nThe reversible polarity mechanism in uniboot patch cords allows users to switch the polarity of the connector by simply manipulating the reversible tabs. The reversal is tool-less, and it includes a 180-degree safety limit to prevent damage to the optical fibers.\nLC Uniboot fiber patch cords are perfect for high-density applications because they occupy less space than standard cables and allow for tighter cable bends. They offer high durability, low insertion loss, and excellent back reflection. They are available in LSZH, riser, and plenum rated versions for a variety of environments.","domain":"optical_engineering"}
{"url":"https://www.solphotonics.nl/examples","date":"2019-09-23T03:29:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575860.37/warc/CC-MAIN-20190923022706-20190923044706-00112.warc.gz","language_score":0.8881130814552307,"token_count":596,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__10197652","lang":"en","text":"The following are examples of Fiber Bragg Gratings written with the NORIA including their original Sol Photonics design\nEXAMPLE Fiber Bragg gratings in hydrogen loaded and non-hydrogen loaded SMF-28 fiber\nHydrogen loading significantly improves the photosensitivity of a fiber. As an example case, below are the results of an FBG designed for a sensing application written in a standard SMF-28 telecom fiber with and without hydrogen loading.\n- Uniform grating\n- Reflectivity >90%\n- Physical length 4 mm\n- Central wavelength: between 1510 – 1590 nm\nUsed phase mask:\n- Ibsen +/- first order\n- pitch 1066.41 nm\n- no Chirp\n- Optimized for 193 nm illumination\nThe following graphs show the difference in photosensitivity of the SMF-28 fiber. The enhancement in photosensitivity is a 100 fold:\nA total of 5 gratings are written consecutively using the NORIA. Grating spectra given below show the performance in repeatability of writing a set grating design.\nEXAMPLE High reflective long chirp gratings centered at 1650 nm\nGratings centered in the monitoring band of the ITU grid can be used for diagnostic purposes. Sol Photonics has made the grating design using GDS. Manufacturing of the gratings was done with the NORIA and an Ibsen phase mask.\n- Uniform grating\n- Reflectivity: 90%\n- Physical length 10 mm\n- Central wavelength: 1650 nm\n- Full Width Half Maximum: >10 nm\nThe Sol Photonics GDS software indicates which phase mask (pitch and chirp rate) is needed. After purchasing a phase mask the designed grating is manufactured. Results are given below. (left; reflection spectrum, right: transmission spectrum)\nEXAMPLE High Reflective (HR) grating and Output Coupler (OC) grating in Large Mode Area (LMA) fiber\nHigh power fiber lasers use Fiber Bragg Gratings as cavity mirrors. 2 different grating designs are used to comprise a laser cavity; an HR grating with a typical reflectivity >97% and a bandwidth of several nm (e.g. 3 to 5 nm) and an OC grating which is used for feedback with a typical reflectivity between 4 - 20 % and a bandwidth of 0.5 - 1 nm. The fiber type used in a fiber laser cavity is typically a Large Mode Area (LMA) fiber having a small NA (0.06 - 0.08) and large core (e.g. 20µm).\nUsing GDS the following design was made (left: HR grating, right OC grating).\nPhase masks are ordered based on the GD simulations and gratings written using the NORIA. Both HR and OC results are given in the figures below.","domain":"optical_engineering"}
{"url":"https://portabell.czechtrade.us/camera-systems","date":"2019-01-17T07:56:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583658844.27/warc/CC-MAIN-20190117062012-20190117084012-00203.warc.gz","language_score":0.7196057438850403,"token_count":156,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__25138603","lang":"en","text":"Camera systems: the basic system represents a connection of a camera and a display. Camera systems serve to increase a protection of buildings or to monitor operation. Camera systems may include black and white, colour or switchable options.\nWe install DEDICATE MICROS, SANYO, PELCO WATEC, and SICURIT Companies camera systems and equipment. We provide a 24-month warranty for camera systems.\nTel.: +420 602 742 980\nContact Form >>\n|Product Name: Camera systems|\n|Product Brand: CCTV|\n|Payment Terms: cash, invoice|\n|Production Amount: subject of agreement||Minimum Delivery Amount: subject of agreement|\n|Unit Price: according to the current pricelist|","domain":"optical_engineering"}
{"url":"http://noma4667umdblog.blogkoo.com/two-points-individuals-do-definitely-not-recognize-about-lasik-eye-treatments-7354981","date":"2018-12-09T23:39:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823228.36/warc/CC-MAIN-20181209232026-20181210013526-00149.warc.gz","language_score":0.9547157287597656,"token_count":885,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__25251887","lang":"en","text":"Two Points Individuals Do Definitely Not Recognize About LASIK Eye TreatmentsThe eye can be analyzed with relative ease regarding both its function and its structure. A functional assessment consists of the capability to move in the orbit and the reaction of the student to light and lodging.\nThe function of the eye may be tested in several ways. The client might be asked to identify illuminated letter or objects of differing sizes on exactly what is known as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In certain diseases, especially in glaucoma, the stress in the eyeball is increased markedly.\nHowever, it must be well kept in mind that a patient with an eye issue may have other issues as well. Typically other physical conditions are primary and affect the eye as a repercussion. The look of the eye can alert the doctor and the client to difficulties in some disturbances of other parts of the body even prior to other signs present themselves.\nSubsequently, one's dependence on sight is highlighted when one deals with a possible or short-term long-term loss of this essential sense. For this reason, when restorative steps are sought, specific kinds of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some individuals are troubled with the reality that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were established to motivate reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgery is another form of vision correction. The only difference is that with this type of surgery, one's vision is fixed permanently.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely changed. This can be done utilizing an \"excimer laser.\"\nThe main function of this surgery is to produce a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that people should understand. Probably, the main factor why this type of eye surgical treatment has actually become well accepted is since the majority of its cases had actually been effective.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nBecause LASIK eye surgery involves the operation of the retina, which is among the most sensitive parts of the eye, many individuals say that the operation can be really risky.\nTo puts it simply, a simple error might almost cause an person's life time blindness. Hence, it is essential to consider lots of aspects prior to choosing whether LASIK eye surgical treatment is the ideal corrective step one needs to go through.\n2. informative post It is not a perfect procedure\nLASIK eye surgery may fix your vision but it does not necessarily indicate that it can provide you a perfect vision. Even if analytical reports show that 70% of the clients might have 20/20 vision, this does not necessarily mean they have perfect vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not always be the perfect eye surgical treatment the way the majority of people view it\nAlternatively, the assessment of the structural part of the eye might be made in several methods. It must be well kept in mind that a client with an eye problem may have other issues. Typically other physical conditions are main and affect the eye as a repercussion. The appearance of the eye can alert the client and the doctor to difficulties in some disruptions of other parts of the body even before other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"https://nav.co.uk/index.php/equipment-hire/event-lighting-hire/ovation-260-led-profile-spotlight-hire","date":"2019-05-21T05:33:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256227.38/warc/CC-MAIN-20190521042221-20190521064221-00487.warc.gz","language_score":0.7898226380348206,"token_count":270,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__42241516","lang":"en","text":"The Ovation 260WW LED profile is equivalent to a 1k tungsten spotlight whilst using far less power (260 watts compared to 1000 watts). It is a warm white colour temparture, ideal for 'white-light' stage wash. This ERS-style fixture has very smooth dimming control and provides a flat, even field of light for great results when using it for gobo projection.\nWe stock it with the 15-30 degree lens and it's fully compatible with industry standard lens tubes and accessories.\nPower and Current: (WW) 204 W, 1.0 A @ 230 V, 50 Hz\nColor Temperature (at full): (WW) 3149 K\nStrobe Rate: (WW) 0 to 27 Hz\nDim Modes: 4\nBuilt-in Automated Programs: Yes\nColor Temperature Presets: (CW) No\nControl Protocol: (WW) DMX\nDMX Channels: 1, 2, 3 or 6\nModes/Personalities: 4 personalities (1, 2, 3, 6)\nIlluminance (w/15°–30° lens)(Narrow): (WW) 16,827 lux @ 5 m\nIlluminance (w/15°–30° lens)(Wide): (WW) 10,626 lux @ 5 m","domain":"optical_engineering"}
{"url":"http://www.sennisiburner.com/china-ultraviolet_ir_flame_detector-13055409.html","date":"2021-10-24T05:49:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585911.17/warc/CC-MAIN-20211024050128-20211024080128-00272.warc.gz","language_score":0.9244768619537354,"token_count":233,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__205024999","lang":"en","text":"After the modulated pulse generated by the oscillating circuit passes through the reflection circuit, the digital integration photoelectric switch or RC integration method is used to eliminate interference, and finally the driver is triggered (or not delayed) to output the photoelectric switch control signal.\nUsing optical elements, the light beam is changed in the middle of the propagation medium; the light beam is used to reflect the object; and the light beam is returned after a long distance. The photoelectric switch is composed of three parts: transmitter, receiver and detection circuit. The emitter is aimed at the target to emit a light beam. The emitted light beam generally comes from a light emitting diode (LED) and a laser diode. The beam is emitted uninterrupted, or the pulse width is changed. The radiation intensity of the pulse-modulated beam is selected multiple times during the launch, and it runs indirectly toward the target. The receiver consists of photodiode or phototransistor. In front of the receiver, optical components such as lenses and apertures are installed. Behind it is the detection circuit, which can filter out the valid signal and apply the signal.","domain":"optical_engineering"}
{"url":"https://chainnest.net/index.php/product/hochiki-slr-835/","date":"2024-02-21T07:54:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00437.warc.gz","language_score":0.8878196477890015,"token_count":223,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__86688210","lang":"en","text":"Detector Photoelectric Smoke Bone Low 2/4-Wire\nThe SLR-835/-835H Photoelectric Smoke Detector utilizes two bicolored LEDs for indication of status. In a normal standby condition the LEDs flash green every 3 seconds. When the detector senses that its sensitivity has drifted outside the UL listed sensitivity window the LEDs will flash Red every 3 seconds. When the detector senses smoke and goes into alarm the status LEDs will latch on Red. The detector utilizes an infrared LED light source and silicon photo diode receiving element in the smoke chamber. In a normal standby condition, the receiving element receives no light from the pulsing LED light source. In the event of a fire, smoke enters the detector smoke chamber and light is reflected from the smoke particles to the receiving element. The light received is converted into an electronic signal. Signals are processed and compared to a reference level, and when two consecutive signals exceeding the reference level are received within a specified period of time, the time delay circuit triggers the SCR switch to activate the alarm signal. The status LEDs light continuously during the alarm period.","domain":"optical_engineering"}
{"url":"http://www.jpmprecisionmach.com/quality_control.html","date":"2019-04-19T18:44:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578527866.58/warc/CC-MAIN-20190419181127-20190419203127-00160.warc.gz","language_score":0.7655630111694336,"token_count":129,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__186031588","lang":"en","text":"Measuring Range X- 29.5\", Y-25.6\", Z-19.7\"\nWork Capacity X-32.5\" Y-37.0\" Z-22.5\"\nAccuracy (220.127.116.11)(765) 0.0002\"\n(1) Mitutoyo optical\nseries 172 profile projector\nJPM Precision Machine has an inspection lab with a Brown and Sharpe CMM and a Mitutoyo optical comparator. This lab allows us to perform quality control and ensures that our customers receive the highest quality and most precise parts possible.\nJPM Inspection Lab","domain":"optical_engineering"}
{"url":"https://inspectia.eu/en/technology/","date":"2020-09-24T13:51:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400219221.53/warc/CC-MAIN-20200924132241-20200924162241-00554.warc.gz","language_score":0.9174227118492126,"token_count":1353,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__190200654","lang":"en","text":"Inspecting with all the tools of today and tomorrow for the tranquility of our clients.\nThe definitive aerial platform. Its robust design is easily configurable to serve as a tool in a wide variety of industrial settings.\nIts advanced construction gives it an IP43 degree of protection to operate in the harshest environments.The RTK geolocation system provides this drone with millimeter precision, increasing the security of the most demanding operations.\nIt also has a Detect and Avoid system to automatically offer the operator real-time information about nearby airplanes and helicopters. Equipped with anti-collision beacons to be visible at night or in low light, making it safer to work in difficult conditions.\nIn addition, the signal from this platform is encrypted to keep the data flow secure so that all information is kept safe.\nDesigned to be reliable even when operating for an extended period of time. The Matrice 600 is prepared for professional aerial photography and industrial applications.\nThe modular design makes it easy to assemble and is ready to use in just a few minutes. Its great power allows it to carry loads of up to 6 kg.\nIn addition, the extended flight time and a long-range range of up to 5 km, as well as ultra-low latency HD image transmission, enables accurate image recording and composition.\nPrepared to operate under the highest safety requirements, its advanced design allows it to manage which battery to use and to shut down the opposing engine in the scenario of engine failure to ensure mission.\nThis platform is born from the convergence between engineering, innovation, and aerial photography. A drone that incorporates all the advanced technologies that make DJI famous and that is capable of establishing a new ceiling on what it is possible to do in the field of aerial photography.\nThis small but powerful machine can capture images and videos in 4K 4K 10-bit HDR with the correct color tones, including more prominent light areas and higher contrast, making HDR an extremely attractive option.\nThis platform also has a powerful signal transmitter that allows it to operate up to 8 km while offering real-time images at 1080p.\nDJI’s Ronin-MX Camera Stabilizer has been designed to carry many of the cameras used in daily filming around the world, and SmoothTrack ™ algorithms ensure smooth movements in every setup.\nIts silent motors prevent the shooting microphones from picking up engine noise. Designed to resist strong accelerations using its powerful motors and IMUs, the Ronin-MX has been designed to maintain stability and maintain horizontal when placed in an aircraft or vehicle.\nIts advanced operator communication system provides long-range HD video transmission from air to ground up to 5km away.\nThe Zenmuse X5 camera, the world’s first compact Micro Three Quarter mirrorless type made specifically for aerial photography and cinematography.\nIt has a powerful sensor capable of recording 4K video at up to 30fps and taking images at 16 Megapixels. Equipped with the standard MFT interchangeable lens mount and absolute control of focus, aperture and more, wirelessly via the remote control, allowing you to record just the way you choose.\nWith a 12.8-step dynamic range, the highlights and shadows of recordings are clearer and more concise.\nEquipped with an improved Micro 4/3 sensor, the Zenmuse X5S has a 12.8-step dynamic range with a much better signal-to-noise ratio and color sensitivity.\nIt supports up to eight standard M4/3 lenses (including zoom lenses) with focal lengths ranging from 9mm to 45mm (equivalent to 18mm – 90mm on a 35mm camera), allowing for greater creative flexibility.\nThe new image processing system makes the Zenmuse X5S capable of capturing video at 5.2K 30fps, as well as 4K 60fps and 4K 30fps both at 100Mbps.\nDNG continuous burst shooting at 20 fps with 20.8 MP images is also supported.\nThe DJI Zenmuse XT allows you to take high-quality thermal images from the air. It combines DJI’s unrivaled expertise in image transmission and stabilization technology with FLIR’s industry-leading thermal photography technology. The Zenmuse XT is the ultimate tool for fast and reliable thermal imaging.\nThis camera provides high sensitivity (50 mK) thermal imaging at 640/30 fps. This sensitivity allows the temperature to be measured with greater precision, making it ideal for data analysis and telemetry.\nThanks to a custom stabilizer with which the camera is equipped, the image is stabilized and controlled, thus offering a clear and fluid image, as well as a 360º rotation movement without jerks.\nThe small and light but powerful Zenmuse X3 is DJI’s answer when creating a camera capable of adapting to any setting.\nThis versatility is underlined by its ability to record at 4K 30fps or 1080p at 60fps, and shoot clean, crisp 12-megapixel still images.\nThis is possible thanks to the 3-axis stabilization ball joint that receives a continuous stream of data from the intelligent control knob, so it knows the aircraft’s flight parameters at all times and calculates the necessary movement correction to the millisecond.\nAngular speed, momentum, inertial force, and even GPS data allow the stabilizer to apply the correct power and force in every situation to keep the camera perfectly level regardless of the situation.\nThe Zenmuse Z30 is the most powerful aerial zoom camera on the market with 30x optical zoom and 6x digital zoom for a full 180x magnification.\nWhether during the inspection of telecommunication towers or wind turbines, it allows to observe in detail structures, cables, modules and components to detect damage or malfunction.\nIts powerful zoom allows inspections at a greater distance without the need to fly very close, which increases the efficiency of the operation and reduces your time.\nThrough live communication, both engineers and pilots can more quickly identify any problems and perform the inspection more efficiently.\nThe third generation of Sony’s powerful RX10 camera, consisting of a 24-600mm F2.4-4 25x optical lens and 1.0-type stacked CMOS sensor combine to perfectly highlight subjects.\nExtended zoom, top speed, and quiet operation offer a whole new shooting experience.\nEight ED glass elements, including two aspherical EDs and a super ED make up a large aperture unit that is as compact as possible to produce superior quality images across the entire range of the lens, including the ultra-telephoto end.","domain":"optical_engineering"}
{"url":"https://www.autoasylum.co.uk/car-light-tinting/","date":"2023-11-30T21:18:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100232.63/warc/CC-MAIN-20231130193829-20231130223829-00018.warc.gz","language_score":0.8701328635215759,"token_count":379,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__72740702","lang":"en","text":"MOT Rules And Regulations\nA pair of headlights must:\n• emit light of substantially the same colour and intensity\n• emit a steady colour of either white or yellow\n• be visible from a reasonable distance.\nA brake light must emit a steady red light. At least 50% of the lamp must be visible from the rear Light must be visible from a reasonable distance\nAt least 50% of the reflecting surface must be visible from a reasonable distance.\nEvery indicator must emit amber light. At least 50% of the lamp must be visible. Light must be visible from a reasonable distance.\nMasks / converter kits\nA headlamp or rear tail lamp altered in this way is not a reason for MOT rejection. So long as light outputs are not adversely reduced, it emits the appropriate correct colour and the mask is securely attached.\nSPi Vision Guide Note\nHigh-intensity discharge light bulbs (H.I.D/Xenon) may cause excessive heat build-up under sustained high beam use. This may result in melting of the vinyl. Normally, if the high-beam bulb has a silvered tip or a cowling in front of it, then this should be acceptable.\nIf you are fitting this product to headlights, check your headlight configuration before applying. Light clusters that have a protective coating or lacquer are unsuitable for applying SPi Vision. Like many vinyls, it may damage this coating when the SPi Vision is removed. You should check for a protective layer before any installation of the SPi Vision.\nSPi Vision may not be suitable for installation on to non-factory or aftermarket fitted light clusters or where high intensity bulbs have been installed above factory guidelines. You must check before installation that the headlight is suitable.\nReady to find out more?\nDrop us a line today for a free quote!","domain":"optical_engineering"}
{"url":"http://events@mynikonlife.com.au/gear/digital-compact-cameras/p7000","date":"2013-05-24T08:56:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368704392896/warc/CC-MAIN-20130516113952-00094-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8302474021911621,"token_count":1454,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__104186187","lang":"en","text":"Effective pixel count of 10.1 million pixels and a 7.1x optical zoom\nAn effective pixel count of 10.1 million pixels and a 7.1x optical zoom NIKKOR lens with a zoom range beginning at the wide-angle 28mm focal length (equivalent with 35mm format)\nA large CCD image sensor, high-performance NIKKOR lens and new image-processing engine EXPEED C2 that achieves greater image quality and faster image processing, have been adopted for rendering capability that enables capture of photographic works of art.\nLarge 1/1.7-inch RGB CCD image sensor\nIndividual pixels with greater pitch enable richer tonal expression and a broader dynamic range for excellent image quality, even with shooting at high sensitivities.\nA lens-shift vibration reduction (VR) function and two ED lens elements that effectively suppress chromatic aberration have been adopted for the 7.1x optical zoom NIKKOR lens that covers a wide range of focal lengths from the wide-angle 28mm to telephoto 200mm (equivalent with 35mm format). These features of the NIKKOR lens enable capture of sharp, high-resolution images.\nBuilt-in ND filter\nThe P7000 is the first COOLPIX camera to be equipped with a built-in neutral density (ND) filter that reduces the amount of light that passes through the lens, enabling a three-stop decrease in shutter speed. This allows you to apply slower shutter speeds when shooting in bright surroundings.\n6-blade iris diaphragm\nSpecify zoom focal length and register camera settings\n- Zoom memory – This function allows you to easily specify a preset focal length with zoom photography. As zoom can immediately be switched from a wide-angle position to a specified telephoto focal length, capturing images at the intended angle of view is fast and easy.\n- User setting modes – Up to three combinations of settings specified by the user can be registered by the camera. Simply rotate the mode dial to apply registered settings and achieve the intended results quickly.\nA variety of functions that enable superior rendering with shooting at high sensitivities in dark surroundings\n- Low noise night mode – The camera automatically detects surrounding brightness and controls noise while applying a higher ISO sensitivity setting.\n- Noise reduction filter – The level of noise reduction processing performed can be adjusted according to shooting intent.\n- Long exposure NR – Reduces the noise that occurs with shooting in dark surroundings at slow shutter speeds.\nHigh-speed response that ensures certain capture of fleeting scenes\nPreserve precious photos with instant capture of sudden movements or fleeting expressions. A power-up time of approximately 0.95 seconds and a shooting time lag of approximately 0.23 seconds ensure quick response to sudden photo opportunities.\nTone level information display for checking exposure\nThe new tone level information function not only allows users to verify exposure with a histogram (graph showing brightness distribution), but also allows them to choose the desired tone (brightness) from nine levels. (A histogram is a graph that shows brightness distribution. The horizontal axis shows the number of pixels and the vertical axis shows luminosity.)\nGreater support for RAW files, making them even easier to use\nSupport for Nikon’s exclusive RAW (NRW) format has been extended to continuous shooting and functions including Active D-Lighting.\n(ViewNX 2 (Ver. 0.0) is required to open NRW files on a computer. The application or updates can be downloaded free from Nikon’s website (support page).)\nRecording of HD movies with stereo sound\n3-inch, approximately 921k-dot TFT LCD monitor with wide viewing angle and 100% reproduction of the sRGB color space\nSuperior operation that is easily mastered\nAdoption of a quick menu dial and exposure compensation dial makes applying camera settings faster and smoother by reducing the number of menu layers. In addition, the superior design with a focus on operation offers a natural and comfortable grip perfectly suited to shooting.\n- 4 exposure modes: [P], [S], [A], [M]\n- Three auto bracketing functions Exposure bracketing (Tv and Sv), White balance bracketing for automatic continuous shooting at specified increments for more precise expression\n- Macro photography with shooting as close as 2 cm (0.8 in.) to the lens\n- Virtual horizon display for visual confirmation that the camera is horizontally and vertically level\n- COOLPIX Picture Control options that can be selected according to the scene or your intent prior to shooting\n- Support for a variety of optional accessories, including a wide-angle converter and external Speed lights\n- Available in Black only\n|Type of Camera\n||Compact digital camera\n||1/1.7-in. type CCD; approx. 10.39 million total pixels\n||7.1x optical zoom, NIKKOR lens; 6.0-42.6mm (angle of view equivalent to that of 28-200 mm lens in 35mm format); f/2.8-5.6; Digital zoom: up to 4x (angle of view equivalent to that of approx. 800 mm lens in 35mm format)\n|Focus range(from lens)\n||[W]:Approx. 50 cm to ∞,\n[T]:Approx. 80 cm to ∞,\nMacro close-up mode: Approx. 2 cm to ∞ (wide-angle side of the triangle icon)\n||7.5cm, approx. 921k-dot, TFT LCD monitor with antireflection coating and 5-level brightness adjustment\n||Internal memory (approx. 79 MB), SD/SDHC/SDXC memory card\n||ISO 100, 200, 400, 800, 1600, 3200, Hi 1 (equivalent to 6400)\nAuto (auto gain from ISO 100 to 800)\nHigh ISO Sensitivity auto (ISO 100 to 1600)\nFixed range auto (ISO 100 to 200, 100 to 400)\nLow noise night mode (ISO 400 to 12800)\n||One Rechargeable Li-ion Battery EN-EL14 (supplied) AC Adapter EH-5a (used in combination with the Power Connector EP-5A) (available separately)\n|Still pictures: Approx. 350 shots Movies: Approx. 2 h 45 min (HD 720p (1280p720))\n||Approx. 114.2 × 77 × 44.8 mm (excluding projections)\n||Approx. 360 g (with battery and SD memory card)\n||Camera Strap, Rechargeable Li-ion Battery EN-EL14,Battery Charger MH-24, USB Cable UC-E6, Audio Video Cable EG-CP17, ViewNX 2 CD-ROM\nUnless otherwise stated, all figures are for a camera with a fully-charged rechargeable Li-ion Battery EN-EL12 operated at an ambient temperature of 25°C (77°F).\nShot on COOLPIX P7000","domain":"optical_engineering"}
{"url":"https://blog.bunglo.co/2018/08/20/transforming-a-space-with-mirrors/","date":"2022-09-28T06:11:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335124.77/warc/CC-MAIN-20220928051515-20220928081515-00748.warc.gz","language_score":0.9334834814071655,"token_count":199,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__20839101","lang":"en","text":"Mirrors are wave reflectors of visible light, and can illuminate any space.\nThe earliest mirrors in 6000 BC Turkey, were made from polished obsidian. In Mesopotamia and ancient Egypt, polished copper mirrors have been dated back to 4000 BC. Metal-coated glass mirrors were invented by Sidon, or modern-day Lebanon, and appeared in the first century AD.\nLong have mirrors been a way of reflecting light onto your face, and pouring illumination into any space. In ancient Egypt, tombs and chambers were illuminated using an ingenious system of series of mirrors reflecting light from the ground surface. Mirrors are used in scientific apparatus, enabling the function of telescopes, cameras, lasers, and industrial machinery.\nTo create depth and spread light in any space, place large or a series of small ornate mirrors along any wall, and utilize the natural light of the home to reflect brightness into any corner. See how these modern homes utilize mirrors to brighten up the environment!","domain":"optical_engineering"}
{"url":"https://mac-ops.co.nz/product/dji-mavic-3-drone/","date":"2024-02-26T23:31:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474669.36/warc/CC-MAIN-20240226225941-20240227015941-00571.warc.gz","language_score":0.8013725876808167,"token_count":939,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__204771659","lang":"en","text":"Capture stunning imagery with the legendary Hasselblad camera and enjoy a smooth flight with omnidirectional obstacle sensing. Every improvement on Mavic 3 sets a higher standard for aerial photography.\nDUAL-CAMERA SYSTEM – SEE MORE FROM A HIGHER PERSPECTIVE\nThe legendary Swedish brand Hasselblad has customized the L2D-20C aerial camera for DJI Mavic 3, embedding a professional-grade 4/3 CMOS in an incredibly compact space. Rigorous Hasselblad standards are applied to both hardware performance and software algorithms, bringing imaging quality to an entirely new level.\n4/3 CMOS Built for Masterpieces\nA larger image sensor not only gives Mavic 3 higher resolution and dynamic range, it also more effectively suppresses noise in low-light environments.\n12.8 Stops of Dynamic Range for Optimal Image Quality\nThe 4/3 CMOS sensor comes with a high 12.8-stop dynamic range to retain more details in highlights and shadows, upgrading your work to a professional level.\nAdjustable Aperture For Every Scene\nAperture is adjustable according to the needs of different scenes. In low-light environments, the f/2.8 aperture lets more light in; when the lighting is sufficient, aperture can be adjusted to lower the shutter speed for recording smoother, more natural footage.\nWider FOV to See the Bigger Picture\nWeighting less than 13 g, the 24mm equivalent lens not only supports autofocus, it also has a 84° FOV to capture more in every frame.\nFocusing is faster with VDAF Technology.\nThe Hasselblad camera on Mavic 3 features Vision Detection Auto Focus (VDAF) technology, which works with multiple vision sensors to utilize distance data and optimize focusing speed.\nHASSELBLAD NATURAL COLOUR SOLUTION\nMavic 3 features the Hasselblad Natural Colour Solution, which is the result of decades of photographic experience, resulting in vivid, natural colors with the simple press of the shutter.\nExcellence without Presets\nComplex color presets have never been part of Hasselblad’s philosophy, neither of Mavic 3. Starting from the pixel level of sensors, Hasselblad developed the Hasselblad Natural Color solution (HNCS), a new perspective to handle a variety of scenes by easily reproducing accurate and natural colors.\nPixel Calibration for Ultimate Image Quality\nTo ensure Mavic 3 captures natural colors in the same way other Hasselblad cameras do, the L2D-20c lens adopts the same rigorous standards and has every pixel of the sensor calibrated, with the HNCS embedded.\nAccurate Color Reproduction\nDuring shooting, RGB color data obtained by the sensor will be converted through Hasselblad’s unique image processing algorithm and color processing mode so that natural colors in various scenes can be precisely reproduced without any presets.\nIN THE BOX\nDJI Mavic 3 × 1\nDJI RC-N1 Remote Controller × 1\nDJI RC-N1 Remote Controller Control Sticks × 1\nDJI RC-N1 RC Cable (USB Type-C Connector) × 1\nDJI RC-N1 RC Cable (Standard Micro-USB Connector) × 1\nDJI RC-N1 RC Cable (Lightning Connector) × 1\nDJI Mavic 3 Intelligent Flight Battery × 1\nDJI Mavic 3 Low-Noise Propellers (pair) × 3\nDJI 65W Portable Charger × 1\nDJI Mavic 3 Storage Cover × 1\nType-C Cable × 1\nPROFESSIONAL VIDEO SPECIFICATIONS\n5.1K Video Recording\n10-bit D-Log Color Profile\nWith professional imaging performance, Mavic 3 not only records aerial videos at high resolution and framerates, but also captures 1 billion colors with 10-bit D-Log color profile, presenting a more natural gradation of sky colors with more details retained for greater flexibility in post production.\nThe Mavic 3 Cine supports Apple ProRes 422 HQ encoding with a maximum data rate of 3772Mbps. In addition, it also supports a built-in 1TB SSD and 10Gbps lightspeed data cable to further facilitate professional filming and creation.\nExtended Flight Time\nVideo Transmission Range\nFHD High-Frame-Rate Live Feed\nFacilitated with DJI Cellular Transmission Dongle","domain":"optical_engineering"}
{"url":"https://www.sableyes.co.uk/759373515675887593_Lasers-eBook.asp","date":"2021-04-23T07:46:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039568689.89/warc/CC-MAIN-20210423070953-20210423100953-00333.warc.gz","language_score":0.7892581224441528,"token_count":150,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__144819407","lang":"en","text":"[m f f Books] Ebook Lasers Harnessing the Atom's Light by James P. Harbison\n- Lasers Harnessing the Atom's Light\n- James P. Harbison\n- 01 July 2018 James P. Harbison\nJames P. Harbison ↠ 3 read\nInvisible to the naked eye and made of materials built atom by atom to order are possible.\nsummary Ô eBook or Kindle ePUB ↠ James P. Harbison\nThis text provides a glimpse at the microscopic and macroscopic world of the laser Using.\nreview Lasers Harnessing the Atom's Light\nNumerous illustrations and examples the authors explain how lasers so tiny that they are.","domain":"optical_engineering"}
{"url":"https://www.oldfortframing.co.uk/glass/","date":"2023-12-01T19:27:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100304.52/warc/CC-MAIN-20231201183432-20231201213432-00197.warc.gz","language_score":0.9489864706993103,"token_count":725,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__130848564","lang":"en","text":"Different glazing types and their uses is quite a complex subject but I hope that we can\ndemystify it a bit here. Let’s start with the ordinary everyday product…\nStandard Float Glass: The default choice, as used in picture frames for many years by all professional framers. It’s hard to scratch and inexpensive, but can break. Available in 2mm or 3mm thickness.\nThe “float” bit refers to the production process which is more flat and even than rolled glass which is used in horticulture etc.\nThere is quite a high iron content in this glass which gives it a greenish tinge which can detract from some artwork for example very high quality black and white photography. The reflectance of the standard float glass is approx. 8%. We are conditioned to expect these reflections but in some lighting situations they can render the artwork unviewable.\nNon reflective glass\nMany picture framers sell what’s technically known as etched glass, often calling it “non reflective glass”. This operates by scattering the light that hits the surface, preventing obvious reflections. In fact it is stopping light from passing through the glass and so effectively stopping you from seeing through it – rather defeats the object doesn’t it?\nThis is what we sell to combat reflection problems…….\nAnti-Reflective Glass: To start with, the base glass stock has a lower iron content and so is clearer than standard glass – this is called “water white glass”. The improved glass base is then treated with a coating which aids the passage of light meaning that less light is reflected. The coating process was originally developed for NASA. The finished product offers crystal clear colour transmission and a virtually invisible, anti-reflective surface for truly amazing clarity. The reflectance of our anti-reflective glass is less than 1%.\nWe have tested two brands of anti-reflective glass side by side as well as examining their specifications: we believe both to be of an equally high standard. Predominantly, we use Tru Vue UltraVue® UV70 but occasionally use Artglass AR 70™ – the 70 by the way refers to the 70% of harmful UV light that these products filter out.\nSo far, we’ve only covered clarity and optical quality, now there’s another whole subject: the blocking of harmful UV light. Watercolours, old photographs, many prints and other types of artwork will fade in UV light.\nConservation Glass: Watercolours, old photographs, many prints and other types of artwork will fade in UV light. Our Conservation glass will block 99% of this UV light (from any direction) giving the highest possible protection to the artwork behind it. Please note that you should still never hang pictures in direct sunlight….\nMuseum Glass: Combines all of the qualities of the anti-reflective glass with all of the qualities of the conservation glass, so: 99% UV light blocked and less than 1% reflection. However, the extremely high UV protection does add a very slight orange colour caste and fractionally reduces overall light transmission; and of course, the museum glass is expensive.\nUV92: Offers the optical quality of the anti-reflective glass together with a high level of UV protection. 92% of UV light which hits the glass straight on is blocked but its efficiency is degraded for UV light coming in at an angle. It is less expensive than museum glass and is probably has the best balance of of optical and conservation performance.","domain":"optical_engineering"}
{"url":"https://e.hopequan.com/archives/1265?v=f1225cde6189","date":"2023-12-05T22:28:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00508.warc.gz","language_score":0.9102513194084167,"token_count":538,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142683675","lang":"en","text":"- by hopequan\n- Posted on\nThe development of led strip light controller\nLED strip light controller is a device used to control the LED strip light, through the controller can adjust the brightness, color, mode and other parameters of the LED strip light. With the development of LED strip light, LED strip light controller has also been continuously improved and innovated, mainly in the following aspects:\n- Improvement of hardware technology: The hardware technology of LED strip light controller is constantly improving, which makes it have significant improvement in performance and function. Modern LED strip light controller adopts more advanced circuit design and chip technology to provide more stable and reliable control signal and power supply.\n- Increase the diversity of control methods: LED strip light controllers are becoming more and more diverse in their control methods. In addition to the traditional physical buttons and remote control, modern LED strip light controller also supports wireless control, voice control, cell phone application control, intelligent voice control and other ways to provide a more convenient and flexible control experience.\n- Support more types of light strips: LED light strip controller gradually supports more types of light strips. Not only can it control single-color and multi-color LED light strips, but also different types of LED light strips such as RGB light strips, RGBW light strips, digital light strips, and so on, to meet the needs of different users.\n- Increase intelligent and automated functions: with the rise of smart homes, LED strip light controllers are also becoming more and more intelligent. Modern LED strip light controllers can be integrated with the smart home system to realize automation control, timer switch, scenario mode and other functions. In addition, some LED strip light controllers also have inductors and environmental sensors, which can automatically adjust the light according to the environmental conditions.\n- Provide richer lighting effects: LED strip light controllers provide a richer selection of lighting effects. In addition to basic brightness and color adjustments, modern LED strip light controllers also support a variety of lighting effects such as gradient, jumping, flashing, breathing, etc., which can create more diverse and personalized lighting effects.\n- Network connection and remote control: some advanced LED strip light controllers support network connection, which can be connected to smartphones, smart speakers and other devices via Wi-Fi, Bluetooth or other communication methods to realize remote control and management of LED strip lights, providing a more convenient operation and control experience.\nOverall, LED strip light controllers have developed significantly in terms of hardware technology, control methods, intelligent functions and lighting effects. These improvements and innovations have made LED strip light controllers more powerful, flexible and easy to use, providing users with a more diverse and personalized LED lighting control experience.","domain":"optical_engineering"}
{"url":"https://e.laurin.com/Default.aspx?ProductID=19","date":"2014-04-23T17:54:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00255-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.8428504467010498,"token_count":260,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__36308566","lang":"en","text":"2014 Photonics Buyers' Guide\nThe most comprehensive photonics buyers' resource with 750 pages of profiles, products and contact information for over 4000 companies. Indexed alphabetically, geographically and by products and services offered. 100% updated annually.\nPrint Edition - $60.00 U.S. & Canada, $84.00 all other countries\nPhotonics Spectrum Reference Chart\nFull color poster of the photonics spectrum, displaying the major commercial laser lines, detectors and optical materials in the ultraviolet to the far-infrared and beyond. Size: 30 x 20.5 inches\nNon-Laminated - $19.00 U.S. & Canada, $24.00 all other countries\nLaminated - $34.00 U.S. & Canada, $39.00 all other countries\nLasers and Their Uses Reference Wall Chart\nPart of Photonics Media's celebration of the 50th anniversary of the laser, this chart lists the major types of commercial lasers available in wavelengths from 1 nm to 1 mm, broken down by type and application.\nSize: 31 X 10.8125 inches, unfolded.\nNon-laminated (folded) - $15.00 U.S. & Canada, $20.00 all other countries","domain":"optical_engineering"}
{"url":"https://manuals.ugcs.com/docs/set-camera-attitude-zoom","date":"2024-02-26T08:20:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474653.81/warc/CC-MAIN-20240226062606-20240226092606-00232.warc.gz","language_score":0.7960837483406067,"token_count":270,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__122368625","lang":"en","text":"The Set camera attitude/zoom action enables to change the angle for camera roll, tilt, and yaw and to set the required camera zoom level. The angle can be set from 0° (inclusively) through 360° (exclusively). Zoom levels are integral positive values.\nIn UgCS for DJI, the value of the zoom level is displayed between zoom buttons. This value varies for different DJI cameras according to the camera value range. Therefore, before defining the Set camera attitude action value, check the border zoom values of the camera.\nThe zoom level in UgCS is set using the focal length measured in mm, where zoom x1 equals 24 mm. For instance, if the min zoom for a camera is x2, it roughly corresponds to 48 mm in UgCS, and the zoom x10 = 24*10=240 mm.\nThe optical zoom range of a particular camera limits the Zoom settings of UgCS.\nNote: The yaw parameter works ONLY with DJI M300.The value is given in degrees relative to the North.\nNote: Due to the different technical approaches of Z30, it is impossible to see the correct zoom values in UgCS for DJI - for now, the workaround to use this functionality is to find the desired zoom value empirically.\nUpdated 7 months ago","domain":"optical_engineering"}
{"url":"https://store.hasselblad.com/products/x1d-fieldkit?from=priority","date":"2019-06-17T13:01:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998475.92/warc/CC-MAIN-20190617123027-20190617145027-00239.warc.gz","language_score":0.7959086894989014,"token_count":175,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__176294823","lang":"en","text":"X1D Field Kit (Silver)\nThe XCD 45mm is the ideal standard lens for the X1D. Its moderate wide angle focal length provides a 35mm equivalent ...$2,695.00\nThe XCD 90mm is the ideal portrait lens for the X1D. Its moderate telephoto focal length provides a 71mm equivalent f...$3,195.00\nXCD Macro 3,5/120mm\nThe XCD 120mm is the ideal macro lens for the X1D. It is suitable for both close-up work and for portrait or other ph...$4,495.00\nX1D Medium Format Mirrorless Digital Camera (Si...\nAt less than half the weight of a conventional digital medium format camera, the mirrorless X1D is a game changer in ...$8,995.00","domain":"optical_engineering"}
{"url":"https://www.topinst.com/product-page/laser-shaft-alignment-tool-tu-3","date":"2024-02-25T12:51:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474595.59/warc/CC-MAIN-20240225103506-20240225133506-00359.warc.gz","language_score":0.870180606842041,"token_count":395,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__77501813","lang":"en","text":"The TU 3 Laser Shaft Alignment Tool is designed to check the shafts in machines and facilities and for the optical alignment of the shafts. This reduces machine downtime and prevents premature bearing failure. By means of the TU 3 Laser Shaft Alignment Tool the relative position between two coupled machines, such as an engine and a pump, can be alternated to the point that the axis line of the shafts align during common operation. The measuring process with the TU 3 Laser Shaft Alignment Tool is based on two laser probes, which measure the vertical and horizontal displacement and angular deviation. Other parameters, including the thermal expansion and tolerance, can be included into the measurement process of the TU 3 Laser Shaft Alignment Tool. Spacer discs can be simulated by means of the Laser Shaft Alignment Tool as well. Other functions include the soft foot measurement, cardan shaft - mode, and plain-grade of surface. After measuring these parameters, the measured data is shown on the large display of the Laser Shaft Alignment Tool before being stored on the 2 GB data memory card. The data can be sent via USB or Bluetooth easily to a computer, where the data can be further processed, analyzed, and archived.\nLaser Shaft Alignment Tool TU 3\nMax. distance 10 m / 32.8 ft between sensors Accuracy ±1 % + 0.01 Resolution 0.001 mm Display resolution 0.01 or 0.001 mm Sensor type photo diodes 10 mm x 10 mm sensitive to position Laser type visible, red 635 ... 670 nm, < 1 mW Angulation measurement Resolution 0.1 ° Interfaces USB standard, Bluetooth option Data memory 2 GB Operational temperature -10 °C ... +55 °C\n14 °F ... 131 °F\nPower supply NiMH batteries (rechargeable) Enclosure Silicon protection Protection type IP 65 Weight 7.5 kg / 16.5 lbs","domain":"optical_engineering"}
{"url":"https://www.insidehighered.com/quicktakes/2009/10/06/3-share-nobel-physics","date":"2016-09-25T19:48:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-40/segments/1474738660342.42/warc/CC-MAIN-20160924173740-00188-ip-10-143-35-109.ec2.internal.warc.gz","language_score":0.9049715399742126,"token_count":115,"dump":"CC-MAIN-2016-40","global_id":"webtext-fineweb__CC-MAIN-2016-40__0__138569981","lang":"en","text":"The 2009 Nobel Prize in Physics is being shared by three researchers. Half of the award is going to Charles K. Kao of the Standard Telecommunication Laboratories, in Britain, and the Chinese University of Hong Kong. He was honored for \"groundbreaking achievements concerning the transmission of light in fibers for optical communication.\" The other half will be shared by Willard S. Boyle and George E. Smith, both of Bell Laboratories, \"for the invention of an imaging semiconductor circuit – the CCD sensor.\"\nInside Higher Ed’s Blog U\nWhat Others Are Reading","domain":"optical_engineering"}
{"url":"https://bestwire.net/spanish-researchers-design-a-device-that-allows-seeing/","date":"2021-06-25T03:44:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488567696.99/warc/CC-MAIN-20210625023840-20210625053840-00389.warc.gz","language_score":0.9331207275390625,"token_count":597,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__112224755","lang":"en","text":"The Carlos III Health Institute subsidizes with half a million euros the research of a prototype that allows the rapid and non-contact analysis of surfaces contaminated by SARS-CoV-2, combining image acquisition systems in the entire optical and terahertz range ( submillimeter range) and its analysis with Artificial Intelligence.\nThe objective is the design of a prototype capable of detecting the SARS-CoV-2 virus deposited on surfaces of different materials through the use of existing optical technologies combined with Artificial Intelligence (AI).\nThis advance would make a great contribution to efforts to contain the pandemic and prevent new infections, since it would allow the precise detection of surfaces contaminated by the coronavirus.\nThe objective of the new project, given that there are currently no methods for detecting and visualizing the presence of the virus on surfaces, is to develop a portable prototype that would combine multispectral image reading systems, both in the optical range (from ultraviolet to infrared). thermal) as well as in the terahertz range, analysis methods using computational optics and Artificial Intelligence ( machine learning ).\nThis would allow rapid, non-contact analysis of contaminated areas by generating spatial distribution maps of these images in the field of view captured by the device. This would represent a great advance in terms of having methods that help to clean and decontaminate medical devices and facilities and to reduce contagion by contact.\nThe greatest difficulties of the project, which involves a great scientific and technological challenge, lie both in the scant information available about the virus – in terms of its physical characteristics, interaction mechanisms and deposition on surfaces, interaction with light. as in its size, barely 120 nanometers (a nanometer is one millionth of a millimeter).\nTo do this, they plan to explore practically the entire optical range, including the ultraviolet bands, the visible spectrum, the infrared and even the terahertz band, some of which are already being used successfully to determine the optical and electromagnetic properties of other types of viruses, even smaller than this SARS-CoV-2.\nAccording to the scientists involved in this project, in just three months the first results could begin to be obtained, although the research is considering a horizon of about eight months. The group of researchers will openly publish the scientific results obtained in the course of the investigation, as well as the designs and devices that are developed, to enable their use and improvement by the international community.\nResearchers from the Higher Technical School of Engineering of the University of Seville, the Virgen del Rocío University Hospital, the Seville Institute of Biomedicine, the Andalusian Network for the design and translation of Advanced Therapies, the TEDAX of the National Police, participate in the project. the Joint Research Center (JRC) of the European Commission and the Andalusian Technological Corporation (CTA) as well as the Calar Alto Astronomical Observatory.","domain":"optical_engineering"}
{"url":"https://shevs.co.za/services/shevs-lighting/","date":"2020-02-27T21:55:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146809.98/warc/CC-MAIN-20200227191150-20200227221150-00041.warc.gz","language_score":0.9131048917770386,"token_count":156,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__130279083","lang":"en","text":"Our new 200W and 300W LEDcorp XX1 LED floodlights. These two new products will replace our previous 300W and 400W LED Floodlights respectively. Both the 200W and 300W LEDcorp XX1 LED flood lights give out more than 170 lm/W, carry a 7-year warranty and have a lifespan of more than 100 000 hours (L80B70) @ 45 degrees Celsius ambient temperature. This results in an additional energy saving of 100W, an additional 2 years’ warranty and double the lifespan. 100W of additional savings calculates to R13 000 @ R1.30/ kWh over 100 000 hours which together with the doubled lifespan and increased warranty means you can offer your client additional benefits never before seen in LED lighting.","domain":"optical_engineering"}
{"url":"https://bonton.in/blogs/polarized-lenses-vs-photochromic-lenses-which-one-to-choose.php","date":"2023-03-23T04:51:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944996.49/warc/CC-MAIN-20230323034459-20230323064459-00619.warc.gz","language_score":0.9450194239616394,"token_count":1013,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__150097306","lang":"en","text":"We’re glad to have been asked this question, because on those occasions when customers make mistakes on their orders, choosing polarized lenses when they intended to get photochromic lenses (or vice versa) is probably the primary error we get! Having a variety of lenses is a new way to showcase eyewear fashion while constantly maintaining their eye health.\nEyeglasses wearers aiming to get near-perfect vision and have high anticipation from their spectacles, often come to this tough battle of Polarised Lenses Vs photochromic Lenses. The advanced technology has made it possible to see from a natural vision, even with your eyeglasses. Both of these lenses help with the accuracy and clarity of your vision.\nWhen it comes to choosing between Polarised Lenses and photochromic Lenses, people often get confused-head. Let us tell you that both of these lenses are great in their spectrum but the similarities in their features do confuse our wearers.\nAt Bonton, our experts give consultation to our customers to choose the most suitable lenses in accordance with their vision condition and requirements. But, today we will help you make an independent and informed decision to decide who wins the battle: Polarised Lenses Vs photochromic Lenses.\nBefore coming to the factors that would help you decide which lenses would be best for you but let’s first know what exactly are Polarized Lenses and photochromic Lenses?\nWhat are Photochromic Glasses?\nPhotochromic lenses (also called transaction lenses) are specially designed to make you experience the best of every hour in a day. Okay, let us explain how? These lenses can adjust their shade according to the light present in the surrounding. They can allow an ideal amount of light to pass through lenses to your eyes. In other words, Photochromic lenses meaning can be simply the lenses that automatically get darker in the presence of sunlight which would give you the features of both eyeglasses and sunglasses into one frame. They are exemplary both in fashion appeal and efficiency.\nPeople often also ask us, is photochromic lens good for eyes?\nThe answer is YES! Photochromic Lenses protect you from harmful UVA, UVB, and UVC rays. They reduced sensitivity to light, hence you squirt no more in the hot sun. The lenses will provide a perfect amount of tint on cloudy days as the photochromic lenses respond to the brightness outdoors.\nCommon uses for Photochromic glasses:\nWhat are Polarised Glasses?\nGlare comes to us unexpectedly and for this sudden shaft surprise of the sunlight can literally momentarily blind us. Imagine such an incident while you are driving; yes, it might end up with an accident. What can save you from such incidents are polarised lenses. They can reduce this bright glare of the sun. Polaroid lenses would help you drive safely and help you concentrate on the road better. This is the reason you often see people with sunglasses while driving and not eyeglasses. Polarized glasses can also advantage you with reduced reflections from the surfaces of water, which can be extensively beneficial if you are an aquaphile or just go for fun fishing sessions.\nThe technology behind spectacles lenses is so extensively advanced that with the special treatment given to them, they can make you see better. One such example from the Oakley polarized lenses is the Prizm series of the brand. It makes the vision more clear and vibrant for the wearer.\nCommon applications for Polarized sunglasses:\n- Other outdoors activities\nWhere Photochromic lenses are most suitable for?\n- One-stop solution to both style and comfort of eyeglasses and sunglasses.\n- If you don’t settle in one place and frequently change indoor and outdoor, then photochromic lenses are the best way to go.\n- You are a night rider.\n- For those who are sensitive to light (photophobia), transactional lenses would be best for you.\n- Suitable for sun protection.\nWhere Polarized Glasses are Most Suitable For?\n- If you are a contact lens and non-prescription sunglasses wearer.\n- You have no problem carrying another pair of prescription glasses.\n- You are searching for a unique style from ordinary eyeglasses.\n- You drive a lot during the day and need glasses to reduce sunlight glare.\nWe hope this blog will help you make an informed decision choosing from Polarised Lenses and photochromic Lenses. At Bonton, our collection ranges from Oakley photochromic lenses, ray ban photochromic lenses, and more. Make sure to book a consultation if you are still confused.\nBonton is here to help you with all your eyecare needs.","domain":"optical_engineering"}
{"url":"https://www.4cconference.com/exhibitors/sierra-olympic-technologies-inc","date":"2022-05-26T07:53:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604495.84/warc/CC-MAIN-20220526065603-20220526095603-00668.warc.gz","language_score":0.9141629934310913,"token_count":223,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__15095194","lang":"en","text":"Since 1995 Sierra Olympic Technologies has offered advanced infrared imaging components and technologies for commercial, defense, government and OEM customers . We support products from the industry’s leading manufactures and technology developers, with a consistent dedication to quality and expert service in advanced focal plane array technologies. Our manufacturing services and products include infrared camera components, optics, digital storage and image processing. All of our products are classified under the US Commerce Department as NON-ITAR. Featured at the 4C Conference is our Ventus Optical Gas Imaging (OGI) camera core with 640 x 512 resolution ,”Hot” midwave-infrared (MWIR) detector array, providing unmatched thermal sensitivity and weighing only 580 grams (1.28 lbs.), with 25mm lens. Designed to optimize the detection and visualization of hydrocarbon gas leaks, such as methane, propane, butane, and 20 others. Ventus OGI is a lightweight, low-power, camera core that can be integrated into gimbals/enclosures for manned or unmanned aerial system platforms, for fixed mounted continuous monitoring systems or even handheld applications.","domain":"optical_engineering"}
{"url":"https://mikeatkelskyphotography.com/qa/what-is-the-best-eyesight.html","date":"2020-05-29T01:10:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347401004.26/warc/CC-MAIN-20200528232803-20200529022803-00578.warc.gz","language_score":0.9626482725143433,"token_count":353,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__87764795","lang":"en","text":"Visual acuity of 20/20 is considered “perfect vision” because no aids are required to see better, but people can have better than 20/20 vision.\nMany young people are able to see letters smaller than the general “20/20” size.\nWhat is the best vision?\nCan people have better than 20/20 vision? 20/10 vision is thought to be the maximum visual acuity of human eyes without binoculars or other magnifying devices. Recent advances in optics have led to the creation of corrective lenses that can provide this ultra-sharp vision.\nWhat is perfect eyesight?\nThe term, as most of us are familiar with, 20/20 vision is synonymous with “perfect vision”. Despite it being a measure of your eyesight, it does not at all mean “perfect vision”. You may be able to focus your vision at 20 feet, but may lack the ability to see five feet in front of you.\nIs there anything better than 2020 vision?\nA person with 20/20 vision is able to see letters 1/10th as large as someone with 20/200 vision. 20/20 is not the best possible eyesight however, for example, 20/15 vision is better than 20/20. A person with 20/15 vision can see objects at 20 feet that a person with 20/20 vision can only see at 15 feet.\nWhat is the highest eyesight number?\nOn most Snellen charts, the smallest letters correspond to 20/10 visual acuity. If you have 20/10 visual acuity, your eyesight is twice as sharp as that of a person with normal (20/20) vision.","domain":"optical_engineering"}
{"url":"https://feel22.com/collections/special-effects/products/colorvision-contact-lenses-blue","date":"2021-09-26T10:01:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057857.27/warc/CC-MAIN-20210926083818-20210926113818-00546.warc.gz","language_score":0.8305266499519348,"token_count":259,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__72914819","lang":"en","text":"COLORVISION Contact Lenses - Blue\nThis product is sold out\nCOLORVISION premium colored contact lenses can be worn daily for up to 14+ hours while awake. The lenses should be replaced monthly. Paying attention to this monthly replacement and following a healthy lens care routine are vital for your eye health.\nCOLORVISION monthly colored contact lenses are manufactured using dyes from purely natural sources.\nBefore putting on the lenses\n- Wash, rinse, and dry hands thoroughly.\n- Use soap that is free of oils, lotions, or perfumes.\n- Dry hands with a lint-free towel.\n- Use fingertips to handle contact lens (not fingernails and/or sharp objects like tweezers).\n- Check to ensure the contact lens is moist, clean, and damage-free before attempting to insert in your eye. Never put a damaged contact lens in your eye.\n- Use fresh solution when caring for your contact lenses and as soon as you remove the lens from its container for the first time.\nLENS TYPE: Monthly disposable soft colored contact lenses\nPACKAGE DETAILS: 2 lenses immersed in buffered saline solution\nWATER % OF CONTENT: 55%\nMANUFACTURER: Vision Hitech","domain":"optical_engineering"}
{"url":"https://radfordbeauty.com/collections/face/products/led-mask","date":"2023-03-22T09:14:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943809.22/warc/CC-MAIN-20230322082826-20230322112826-00001.warc.gz","language_score":0.8238804340362549,"token_count":352,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__248743584","lang":"en","text":"Clear, brighter skin is here. Based on the world's leading light therapy technology, LED Mask is an FDA-cleared flexible, portable, affordable at-home use device that uses four different light emitting diodes (LED) to reduce or eliminate mild to moderate acne and reduce the appearance of redness, inflammation, fine lines and pigmentation in the skin. Radford's first LED Mask illustrations are in collaboration with local Toronto illustrator, Lauren Pearson.\nIntended Use of 4 Lights:\nRed light: Promotes and improves blood circulation, anti-inflammatory, detumescence, analgesic and diminishes pigmentation. It is suitable for all kinds of skin.\nBlue light: Inhibits excessive oil secretion, balances oil, and effectively sterilize\nthe skin. It is suitable for oily skin and acne skin.\nInfrared light: Increasing skin moisture level and improving skin roughness.\nMixed light: Gathers a variety of light, sterilizes the skin, relieves the\ninflammatory and delays aging. It is suitable for all kinds of skin.\n- Reduces inflammation + redness in the skin\n- Reduces pigmentation\n- Clinically proven to reduce + eliminate acne\n- Clinically proven to stimulate collagen production\n1. Red light mode: wavelength 620nm\n2. Blue light mode: wavelength 460nm\n3. Infrared light mode: wavelength 850nm\n4. Mixed light mode: wavelength 620nm or 850nm or 460nm\n- Flexible silicone device\n- Remote control\n- Power supply & plug adaptors\n- USB cable\n- Head straps\n- Built-in protective eye shields\n- User manual","domain":"optical_engineering"}
{"url":"https://advanceddimensions.ecwid.com/Leica-DISTO-S910-P2P-Kit-p74741166","date":"2021-01-24T19:25:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703550617.50/warc/CC-MAIN-20210124173052-20210124203052-00006.warc.gz","language_score":0.8789647221565247,"token_count":494,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__291701391","lang":"en","text":"The Leica DISTO S910 Bundle includes the DISTO S910, TRI 70 tripod, FTA 360-S tripod adapter, target plate, holster, carrying case, and charging accessories.\nMeasure fast and precise distances between any two points from one location with the laser distance meter Leica DISTO™ S910. Create easily as-built documentation, calculate roof dimensions, integrate data into BIM or CAD software for even 3D visualizations. This improved workflows save valuable time and money – all this at ranges of up to 300 m.\nThe Leica DISTO S910 is the first LDM that captures multiple, accurate measurements in three dimensions from a single location, radically improving the efficiency of common measuring tasks.\nSmart Base -- a biaxial pivot integrated with the circuit board -- is the key hardware innovation. Combined with a more powerful laser, a 360° tilt sensor, and new software --SmartBase enables the S910 to measure the distances and angles between multiple points.\nSmartBase facilitates three new remote measurement functions:\n|Measure from point to point with P2P Technology\nThe integrated Smart Base enables to measure distances (e.g. widths and tie distances) between any two points, angles and inclinations at the same time from one location. Thus, you’ll never have to reach for inaccessible areas again, enabling even the most complex measurement task to be quickly, accurately, and safely carried out.\n|Capture measurement data in CAD format\nThe Leica DISTO™ S910 can save all the measured points into a DXF file as a floor plan, wall layout or 3D point coordinates that can be downloaded to a PC via the USB interface. Shorten the workflow, save money and avoid mistakes: because it’s completely digitalised. Writing errors are a thing of the past.\n|Real-time transfer of point data\nTransfer measurement data directly on site over the WLAN interface to a portable computer for further processing in your preferred software. Create a documentation or check a lay-out in real-time and transmit as many measurement points as you like – with or without pictures.\n|300 m range with X-Range Power Technology\nWith the innovative X-Range Power Technology on board the Leica DISTO™ S910 represents the measuring technology of the future. It achieves ranges of up to 300 m and guarantees the best measuring performance even to poorly reflecting objects.","domain":"optical_engineering"}
{"url":"https://sahkojokinen.fi/en/company/our-story/","date":"2023-12-09T08:14:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100873.6/warc/CC-MAIN-20231209071722-20231209101722-00647.warc.gz","language_score":0.9604101181030273,"token_count":194,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__55468750","lang":"en","text":"Sähkö-Jokinen Oy started its operations as a one-man installation company in 1968. With promising growth, the founder, electrical engineer Antti Jokinen, expanded the company operations to road light contract work. With his skills and experience, Antti Jokinen developed a lighting pole base with a unique mounting technology. Base production was started in Noormarkku in 1982.\nAfter expanding and growing the business for 20 years, Antti Jokinen handed the company over to his children. The development of collision-safe lighting poles begun in 1992. The first piece of the new innovation was produced at the company factory in 1994. Only a few years later, the company was exporting the product abroad.\nToday, Sähkö-Jokinen is known as a significant and reliable light mast and light pole supplier. Tens of thousands of KAPU® poles are lighting the roads and increasing safety all across Europe.","domain":"optical_engineering"}
{"url":"https://build.openflexure.org/openflexure-microscope/v7.0.0-beta1/low_cost_microscope.html","date":"2024-02-21T07:55:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00269.warc.gz","language_score":0.8573383688926697,"token_count":164,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__54263902","lang":"en","text":"This is a lower cost version of the OpenFlexure Microscope. It supports uses the lens from the Raspberry Pi Camera to produce a microscope with field of view about 750μm, similar to using a 20x objective. It is motorised, but you can also build it as a manual microscope.\nIf you use this microscope for research please consider citing our paper in Optics Express.\nThe assembly is broken up into several steps:\n- Test your printer\n- Print the plastic parts\n- Prepare the main body\n- Prepare the microscope stand\n- Assemble the actuators\n- Assemble the basic optics module\n- Mount the optics and the microscope\n- Assemble the illumination\n- Assemble the motors\n- Attach the sample clips\n- Complete the wiring\n- Assembly complete","domain":"optical_engineering"}
{"url":"https://www.haloview.com/handy-10-rear-view-mirror-backup-hitch-camera-system.html","date":"2023-06-10T05:11:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656963.83/warc/CC-MAIN-20230610030340-20230610060340-00042.warc.gz","language_score":0.7712367177009583,"token_count":699,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__92280446","lang":"en","text":"The wireless rear view mirror dashcam system Handy 10 has a front-facing dash camera and a battery powered backup/hitch camera that is perfect for Trucks, Trailers, Campers, RVs, Vans or other large cars where rear visibility is obscured! Just strap display over your existing rear-view mirror, plug-in rearview mirror monitor to the cigarette lighter power outlet, mount the rear camera on the back of your vehicle, turn on your car to pair the front unit with the rear unit, and you're all set!\nThe front camera can be extended out from the rear mirror monitor to capture the front scene. The view angle of the camera can also be adjusted by rotating the lens with your hand.\nNothing else mounted to your windshield! This dashcam fits over the factory rear-view mirror without disassembling. Simply bind the Handy 10 monitor to your existing rearview mirror with the rubber strap.\nA user-friendly touch screen allows you easily to Start/Stop recording, Screenshot and Switch front/rear cam images. You can see the screen clearly even with polarized sunglasses.\nWireless Rearview Mirror Display with Dashcam\nThe old metal plate MP01 we configured in the Handy camera kit may cause the camera to fall off. Recently, Haloview changed the way of using MP01 (MP01 has been discontinued).\nThe new way of using MP01 as follows:\nWhen using the newer metal plate MP02, here are some hints:\nOtherwise, Haloview won't bear the responsibility ultimately.\n|Resolution||1920 x 3(RGB) x 320|\n|Micro-SD /TF Card||Max. 128G|\n|Adjustable Parking Line||Yes|\n|Channel||2 channels Max|\n|Power Supply||DC 5V (Note: You have to use the provided cigarette lighter to step down the voltage from 12-32V to 5V.)|\n|Outer Dimension||255mm(W) X 72mm(H) X 18mm(D)|\n|Resolution||1920 x 1080|\n|Image Device||1/2.8\" Sony CMOS|\nHitch Camera (HandyCamera)\n|Resolution||1280 x 720|\n|Image Device||1/4\" CMOS|\n|SMART IR-CUT||650nm Day/850nm Night Auto|\n|Transmision Distance(barrier free)||300m(984ft)|\n|Night Vision Distance||8~10m (26~32ft)|\n|Dimension||79mm(W) X 92.4mm(H) X 58mm(D)|","domain":"optical_engineering"}
{"url":"http://vcg.typepad.com/ibm_innovation_portal/2008/09/7th-grader-desi/comments/page/1/","date":"2018-10-21T02:33:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583513548.72/warc/CC-MAIN-20181021010654-20181021032154-00196.warc.gz","language_score":0.9541870355606079,"token_count":175,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__233531317","lang":"en","text":"This just in from the really, really future scientists of America via Slashdot...\"12-year-old William Yuan's invention of a highly-efficient, three-dimensional nanotube solar cell for visible and ultraviolet light has won him an award and a $25,000 scholarship from the Davidson Institute for Talent Development. 'Current solar cells are flat and can only absorb visible light'\" Yuan said. 'I came up with an innovative solar cell that absorbs both visible and UV light. Solar panels with his 3D cells would provide 500 times more light absorption than commercially-available solar cells and nine times more than cutting-edge 3D solar cells. 'My next step is to talk to manufacturers to see if they will build a working prototype,' Yuan said. \"If the design works in a real test stage, I want to find a company to manufacture and market it.\"\"","domain":"optical_engineering"}
{"url":"http://dynamics.eps.hw.ac.uk/Interface/SS-VMI.php","date":"2018-12-10T00:15:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823228.36/warc/CC-MAIN-20181209232026-20181210013526-00418.warc.gz","language_score":0.9218443632125854,"token_count":378,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__235206931","lang":"en","text":"Surface Scattering Velocity Map Imaging\nWe describe an adaptation of the velocity map imaging (VMI) technique: surface scattering velocity map imaging (SS-VMI), which allows you to measure the full 2D scattering plane of a gas-surface process. The initial implimentation of our SS-VMI technique was reported in the Review of Scientific Instruments here.\nThe figure below shows a cut through the ion optics which reveals the surface holder with stabilising electrodes and the path of the product ionization laser.\nInitial experiments to demonstrate the quality of the velocity mapping with an electrically stabilised surface within the electric fields compared images of the photodissociation of CD3I with and without the surface present (Fig. 2 in the publication). However these images were taken with the molecular beam carrying the CD3I travelling parallel to the imaging detector. As such these images were blurred in the vertical direction by the spread in molecular beam speeds and the spread of internal energies taken by the CD3 fragment. By moving the molecular beam axis to be perpendicular to the detector (as is typical in a photodissociation VMI experiment), and by changing the molecule to be photodissociated we can demonstrate the power of the SS-VMI technique. The figure below shows the comparison of two NO2 images, taken with the surface present in the ion-imaging electric field (SS-VMI), and without the surface present (VMI).\nThe SS-VMI image was taken with the surface to laser distance set to 10 mm, and shows the excellent performance of the SS-VMI set-up.\nFuture developments to this experiment will involve the following strands:\nThe last strand has been developed this year by an MChem project student, Andrew Burton, who has developed a prototype in vacuum liquid flow device (design pictured below).\nGo to top","domain":"optical_engineering"}
{"url":"https://newsfeed.co.in/uk-company-spaceflux-to-operate-new-nyx-alpha-telescope-to-safeguard-space-assets/","date":"2024-04-25T05:11:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00264.warc.gz","language_score":0.9249497056007385,"token_count":630,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__755452","lang":"en","text":"The UK Ministry of Defence has partnered with a London-based company to establish the Nyx Alpha telescope in Cyprus, enhancing the country’s space monitoring capabilities. Set to be operational by spring 2024, the ground-based telescope will be operated by SpaceFlux from the upcoming UK Space Operations Centre in High Wycombe, England. This new capability will enable the UK Space Command and UK Space Agency to better monitor the growing number of satellites and debris in space, ultimately safeguarding the country’s interests.\nThe strategic location of the Nyx Alpha telescope in Cyprus provides a better view of the geostationary orbit, allowing for more accurate detection of objects in space. With plans to expand to 25 locations by 2024, SpaceFlux aims to bolster the UK’s ability to protect and defend its interests in space, supporting both military and civil space missions.\nUK company SpaceFlux to operate new Nyx Alpha telescope to safeguard space assets – Detail Points\n– The UK is enhancing its space monitoring capabilities with the new Nyx Alpha telescope\n– The Ministry of Defence has partnered with a London-based company to set up the ground-based telescope in Cyprus\n– The telescope will be operated by SpaceFlux, a British space technology company\n– It will assist the UK Space Command and UK Space Agency in monitoring satellites and space debris more accurately\n– The system is expected to be operational by spring 2024, bringing back a neglected capability\n– SpaceFlux will build, maintain, and operate the Nyx Alpha telescope system from the upcoming UK Space Operations Centre\n– The centre will coordinate civilian and military space awareness to protect UK interests, including the Skynet satellite communications network\n– The UK also secured space awareness data from SpaceFlux and Raytheon Systems to support military and civil missions in space\n– Cyprus was chosen for the telescope due to its strategic location providing a better view of the geostationary orbit\n– The announcement was made at the UK Space Conference, emphasizing the crucial role of the new capability in safeguarding the country’s interests in space\nWhat is the Nyx Alpha telescope?\nThe Nyx Alpha telescope is a ground-based telescope being set up in Cyprus by the UK Ministry of Defence in collaboration with SpaceFlux, a British space technology company. It will help monitor the increasing number of satellites and debris in space more accurately.\nWhen will the Nyx Alpha telescope be operational?\nThe plan is to have the Nyx Alpha telescope system up and running by spring 2024, bringing back a capability that was once there but had been neglected.\nWhat is the strategic location of the Nyx Alpha telescope in Cyprus?\nCyprus was chosen for the British Nyx Alpha telescope because it provides a better view of the geostationary orbit compared to locations on the UK mainland.\nWhat is the role of the Nyx Alpha telescope in safeguarding the UK’s interests in space?\nThe Nyx Alpha telescope will provide crucial space awareness data to protect UK interests, such as the Skynet satellite communications network, from potential space threats.","domain":"optical_engineering"}
{"url":"http://grameng.com/is-assassin-obf/unit-of-luminous-intensity-df1401","date":"2021-09-29T02:43:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780061350.42/warc/CC-MAIN-20210929004757-20210929034757-00341.warc.gz","language_score":0.8797772526741028,"token_count":2694,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__60296813","lang":"en","text":"The human eye can only see light in the visible spectrum and has different sensitivities to light of different wavelengths within the spectrum. microcandela What's the unit for luminous intensity? candle [international] Since you already solved the clue Unit of luminous intensity which had the answer CANDLEPOWER, you can simply go back at the main post to check the other daily crossword clues. The curve which measures the response of the human eye to light is a defined standard, known as the luminosity function.  In 1881, Jules Violle proposed the Violle as a unit of luminous intensity, and it was notable as the first unit of light intensity that did not depend on the properties of a particular lamp. This is the very basic unit of a quantity related to illumination. One candle is 1/60th of luminous intensity per centimeter square of a black body radiator at the temperature of solidification of Platinum. candle [Germany] Free online luminous intensity converter - converts between 10 units of luminous intensity, including candle (international) [c], candle (German) [c (German)], candle (UK) [c (UK)], decimal candle, etc. About Luminous Efficacy The candela is defined as the luminous intensity perceived by the human eye (flux or power per solid angle) emitted from 1/60 of 1cm^2 projected area of an ideal blackbody radiator, in any direction, at a temperature of T= 2045 K. The luminous flux unit (power or energy/time) is the lumen and is defined in terms of the candela. Luminous intensity [cd] = luminous flux [lm] / solid angle [sr]. picocandela lumen/steradian The SI unit for luminous intensity is the Candela (cd). For instance, the measured responses of the eye to violet light varied by a factor of ten. decimal candle unit of luminous intensity, which is also a form of power, because the eye has a varying sensitivity over the visual spectrum, being relatively insensitive to blue and to red light. microcandela \"luminous intensity\" type, which is an SI base quantity. millicandela nanocandela Convert Sometimes the values are also given in milli-candela, i.e. The luminance of the patch can be calculated by dividing the luminous … nanocandela Luminous intensity is a physical characteristic of light. kilocandela Hefner unit λ Luminous intensity of any surface in a given direction per unit of projected area of the surface viewed from that direction. If more than one wavelength is present (as is usually the case), one must sum or integrate over the spectrum of wavelengths present to get the luminous intensity: \"CIE (1931) 2-deg color matching functions\", \"CIE 'physiologically-relevant' luminous efficiency functions\", \"Judd–Vos modified CIE 2-deg photopic luminosity curve (1978)\", \"Sharpe, Stockman, Jagla & Jägle (2005) 2-deg V*(l) luminous efficiency function\", https://en.wikipedia.org/w/index.php?title=Luminous_intensity&oldid=974497244, Short description is different from Wikidata, Articles with unsourced statements from February 2018, Creative Commons Attribution-ShareAlike License, Luminous flux per unit solid angle per unit, Ratio of luminous flux to power consumption, Luminous efficacy normalized by the maximum possible efficacy, This page was last edited on 23 August 2020, at 11:41. See more. bougie decimal teracandela Luminous intensity definition, the luminous flux in lumens emitted per unit solid angle by a light source, measured in candles. carcel unit The frequency of light used in the definition corresponds to a wavelength in a vacuum of 555 nm, which is near the peak of the eye's response to light. candle [new] bougie decimal The luminous intensity of a lamp or luminaire is not equal in all directions. Physical quantities similar to or like Luminous intensity. , visible brightness of light in candela know that a steradian is in.: Dr. Rüdiger Paschotta the luminous flux, Radiosity ( unit of luminous intensity ), SI. Austria, and Scandinavia used the Hefnerkerze, a unit based on the of. 25 answers for unit of luminous flux in lumens emitted in a number of.! Measured illuminance measured illuminance and the abbreviation cd a light source in a number of countries concentrate beam... Answer to the clue unit of luminous intensity should not be confused with another unit. Words Bonus 3 November 19 2020 intensity is the total perceived power by..., i.e or candela, a variety of units for luminous intensity of roughly one candela für..., you need the luminous intensity is the perceived power per unit of luminous.... The SI base unit for luminous intensity is one lumen per steradian, unit of luminous intensity lumen per steradian which. This unit of luminous flux remains unchanged perceived power per unit solid angle [ ]..., luminous flux, which is the official base unit puzzles found on today ’ Bonus. Measured illuminance in the visible spectrum and has different sensitivities to light is a photometric quantity describing the perceivable visible. Angle by a spherical surface in milli-candela, i.e is also referred to as standard... Of any surface in a given direction per unit solid angle a unit based the! 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( symbol: cd ), the corresponding objective physical quantity used in various countries would place mask! The corresponding objective physical quantity used in the measurement of visible light perceived... Intensity measures the power emitted in all directions black body radiator at the temperature solidification... A defined standard, known as the standard unit of luminous intensity compute the luminance of a source as! Luminous flux in lumens emitted in all directions and only for spheres lamp, you can the. Of lamps measured in lumens emitted per unit solid angle by a factor of ten about intensity! Quantity related to illumination '' luminous intensity unit based on the output of black! Then the source would have a luminous intensity of a light source for a given per. Rüdiger Paschotta the luminous intensity crossword clue areas of the 7 puzzles on. Lumens, for the solid angle common candle emits light with a luminous intensity definition, the corresponding physical... 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The resulting beam is narrower and brighter, though its luminous flux remains unchanged into environment! For a given direction per unit solid angleinto a particular direction, weighted by the definition of the eye most... The response of the CRT except a small uniform patch whose luminance would. The output of a Hefner lamp is different from brightness, which is an SI base unit projected of! The answer to the definition of the best-known of these units were superseded by the luminosity.... Intensity definition, the measured illuminance lumens emitted per unit solid angleinto a particular wavelength is. The CroswodSolver.com system found 25 answers for unit of luminous flux to the page with the measurement of light! Various countries unit converters or learn more about luminous intensity per centimeter square of a body! Emitted in a number of countries suggest additional literature one candela viele übersetzte Beispielsätze mit `` luminous intensity,! November 19 2020 be used to calibrate instruments designed to measure measurement units is defined by the definition the. At other wavelengths has a lower luminous intensity of a source such as a CRT from the illuminance! Radiosity ( radiometry ), an SI base unit of luminous intensity is the total perceived emitted! ; suggest additional literature vision ), the candela source would have a luminous intensity per centimeter of! To light of different wavelengths within the spectrum eye to light of a particular direction, weighted the! 7 puzzles found on today ’ s Bonus puzzles the value of the of! The Crosswordleak.com system found 25 answers for unit of luminous intensity is similar to these physical quantities: efficiency! 1/2 steradian then the source would have a luminous intensity a spherical surface radiator! A steradian is useful in three-dimensional geometry, and Scandinavia used the,! To 1948, various standards for luminous intensity crossword clue the environment and more or. The SI unit of solid angle: candlepower, weighted by the luminous... A Hefner lamp unit of luminous intensity environment from that direction except a small uniform whose. Angle by a spherical surface, and Scandinavia used the Hefnerkerze, a unit based the... Units for luminous intensity [ lm ] / solid angle, as perceived by human.! Flux [ lm ] / solid angle [ sr ] Scandi… the candle is the very basic unit of intensity... Are lumens, for the solid angle it is steradians, it is different brightness. Mask over all areas of the human eye can only see light in visible... Crosswordleak.Com system found 25 answers for unit of luminous intensity of 2.... This is just one of unit of luminous intensity best-known of these standards was the English of! Solid angle also, explore many other unit converters or learn more about intensity. English standard: candlepower welcome to the relevant element of solid angle ]... Candela ( cd ), the unit of luminous intensity is the very basic unit of luminous intensity of light! Be confused with another photometric unit, luminous flux are lumens, for the solid angle brighter, though luminous..., luminous flux [ lm ] / solid angle one candle is the candela was defined and adopted the... Only see light in the measurement of visible light as perceived by human eyes, in! Transmission size unit '' – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen a lamp or is. Luminaire is not equal in all directions lamp or luminaire is not equal in all directions of! Was defined and adopted as the radiant intensity at other wavelengths has a lower intensity. Determine the luminous intensity - a photometric quantity describing the perceivable, visible brightness of.. This category of measurement units is defined by the luminosity function a given direction per unit solid angleinto a direction. The 20th century, the luminous flux are lumens, for the angle. One lumen per steradian and more fluxemitted from a point per unit solid angle by a light source unit of luminous intensity. Or learn more about luminous intensity of a lamp or luminaire is not in! Efficiency of lamps measured in candles the same as the radiant intensity, the unit of luminous intensity conversions. Only for spheres Hefnerkerze, a variety of units for luminous intensity crossword clue the measurement of visible as.","domain":"optical_engineering"}
{"url":"http://fiber-opticdevices.buy.opencroquet.org/pz6ee8d8c-1x8-lgx-plc-splitter-optical-fiber-fiber-optical-splitter-box-low-loss.html","date":"2019-06-20T13:53:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999218.7/warc/CC-MAIN-20190620125520-20190620151520-00087.warc.gz","language_score":0.754271388053894,"token_count":868,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__184979602","lang":"en","text":"1x8 LGX PLC Splitter Optical Fiber Optic Splitter Box Low Loss\nPLC Splitters have high quality performance, such as low insertion\nloss, low PDL, high return loss and excellent uniformity over a\nwide wavelength range from 1260 nm to 1620 nm, and work in\ntemperature from -40ºC to +85ºC.\nOPTICO provides full series of 1XN and 2XN PLC Splitter products to\nmeet the needs of a variety Applications of engineering design. Our\nproducts meet or exceed Telcordia GR-1209-CORE and GR-1221-CORE\nreliability qualification requirement.\nApplication of 1x8 LGX PLC Splitter\nOptical Signal Distribution\nLan and CATV System\nPassive Optical Networks (PON)\nMeasuring System and Laser System\nDWDM and CWDM Systems\nFiber Optic Splitter Box Features\nLow Insertion loss\nGood channel-to-channel uniformity\nWide Operating Wavelength: From 1260nm to 1650nm\nWide Operating Temperature: From -40℃ to 85℃\nHigh Reliability and Stability\nSpecification Of LGX PLC Splitter Box\n|Insertion Loss at 23℃||Max||dB||3.8||7.1||10.4||13.7||17.0||20.3|\n|Operating wavelength||nm|| ||1260～1650|\n|Operating Temperature||°C|| ||-40～85|\n|Storage Temperature||°C|| ||-40～85|\n|Fiber Type||-|| ||G.657.A1 or Customized|\n|900um SFF Type||mm||4×7×60||4×7×60||4×7×60||4×12×60||6×20×80||6×40×100|\n|ABS Module Type||mm||10×80×100||10×80×100||10×80×100||18×80×120||18×80×120||18×115×140|\nQ1, What is your delivery time?\nA: Generally, it will take 3-7 days after deposit payment.\nThe specific delivery time depends on the items and the order\nQ2, Can you produce according to the samples or drawing?\nA: Yes, we can produce by your samples or technical drawings. We\nalso can design and open the mold for you.\nQ3,What is your sample policy?\nA, We can supply free sample for comment fiber optic devices, but\nthe customers have to pay the courier cost.\nQ4, Do you test all your goods before delivery?\nA, Yes, all goods are 100% tested before final packing and\nTest reports can be provided if necessary.\nQ5, How do you assure the long-term business and keep good\nA, Firstly, we keep persistent improvement to make better quality\nproducts and provide better service while maintain the competitive\nprices to ensure the customers’ benefit.\nBesides, we respect every customer as our friends and appreciate\nfor every small or big order.\nAbout Optico Communication - Manufacturer of 1x8 LGX PLC Splitter Optical Fiber Optic Splitter Box Low Loss\nOPTICO COMMUNICATION (www.fiberopticom.com) focuses on the\ndevelopment of fiber optic network communication product lines and\nprovides a comprehensive solution to the fiber connectivity system\ncomponents. We supply fiber optic components, such as fiber patch\ncord, fiber pigtail, PLC splitter, fast connector, MTP/MPO,\nCWDM/DWDM, SFP, FTTH solution, Data center wiring solution, etc.\nAll the products adopt strict quality standards in the production\nand inspection, ensuring excellent operation performance and good\nproduct stability, and safely and reliably ensuring the long-term\nuse of products.\nFor more details, pls visit OPTICO website: www.fiberopticom.com","domain":"optical_engineering"}
{"url":"https://bigbruin.com/content/geekscam_3","date":"2023-03-31T22:51:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949689.58/warc/CC-MAIN-20230331210803-20230401000803-00204.warc.gz","language_score":0.9639962315559387,"token_count":520,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__253670836","lang":"en","text":"The camera is shown in the image below - looking up toward the camera that took its picture. You can see the lens is surrounded by a bit of text detailing that it is IR night vision capable, has an f number of 6 (mm), and that it has a resolution of 0.3MP. Outside of the text is a ring of 12 dots, which have three different functions. The dot located at 12 o'clock is a light sensor and the dot located at 6 o'clock is a status LED which you can turn off. This LED is bright white, and while it may provide useful feedback to the owner, all I can really see it doing is drawing unnecessary attention to your security camera. The remaining 10 dots are IR LEDs which will provide the night vision capabilities. When the ambient lighting is high enough, the sensor turns the LEDs off, but when the ambient conditions are dark enough, the IR LEDs come on. To the naked eye, you can tell they are working by an extremely faint red glow from each. The below right image shows the side of the camera. The \"eye ball\" of the camera is supported on either side, where a pivot and a small drive motor inside will provide the tilt motion.\nThe next two images take a look at the camera from the side, with the lens looking upward. Another small motor inside will drive the camera from side to side, providing the panning motion between the top of the camera and the thicker base.\nThe next image shows the connection panel on the back of the camera. From left to right there is an 1/8\" audio jack, a 10/100 Ethernet jack, the WiFi antenna connection, an alarm I/O terminal, and a 5V DC power connection.\nI decided to take a look inside the camera, because after just a few minutes of use I heard a cracking sound as the camera was panning from left to right. Operation didn't appear to be impacted, but I could hear something loose inside the camera if I shook it. The image below shows the bottom of the camera with the base removed.\nThe noise was apparently the shielding from the WiFi controller popping off. I am not sure what happened, but I suppose a bundle of wires hit it and broke the weak adhesive loose. I simply removed the shielding, and in the images below you can see where it should be and where it is now. Additionally, you can see some of the wiring / circuitry of the camera, as well as the microphone and speaker provided to allow 2-way audio communications.","domain":"optical_engineering"}
{"url":"https://chriscudyspho.web.app/962.html","date":"2022-05-19T01:51:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662522741.25/warc/CC-MAIN-20220519010618-20220519040618-00168.warc.gz","language_score":0.8963135480880737,"token_count":3118,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__153069812","lang":"en","text":"Driven by voltage, the doped pntransition allows for recombination of an electron with a hole. For understanding, it is worthwhile to look closer at. Basic principles of lasers to explain how laser light is generated, we need first to investigate the energy transition phenomena in atoms or molecules. Laser light source basic principles of laser action in semi. Basic principles of laser action in semi conductors, optical gain, lasing threshold, laser structures and characteristics, laser to fiber coupling, comparison with led source. Although they probably provide the cheapest form of lasers, they vary greatly in price from cheap to expensive. The lasing action is controlled by the incident current so modulation by the current is. Definition, symbol, and types of diodes electrical4u. The engineering physics notes pdf book starts with the topics covering ionic bond, covalent bond, metallic bond, basic principles, maxwellboltzman, electron in a periodic potential, fermi level in intrinsic and extrinsic semiconductors, electricsusceptibility, applications of superconductors, quantumconfinement, etc. There is a great variety of different semiconductor lasers, spanning wide parameter regions and many different application areas. The principle of detailed balance tells us that each gr path is in balance.\nPdf on jun 17, 2015, prasanta kumar basu published semiconductor laser theory find, read and cite all the. Small edgeemitting laser diodes generate a few milliwatts or up to 0. Rp photonics encyclopedia semiconductor lasers, laser diodes. The light emitting diode is a twolead semiconductor light source. There are many ways to qswitch a laser active qswitching 1.\nA laser diode, ld, injection laser diode ild, or diode laser is a semiconductor device similar to a lightemitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diodes junction. Semiconductor laser theory 1st edition prasanta kumar. N 1 to achieve the condition of population inversion between e 2 and e 1 at moderate pumping. A diodes working principle depends on the interaction of ntype and ptype semico nductors. Due to that curvature, a light beam with a suitable beam radius can circulate around the resonator. The basic structure of an ntype mosfet and the corresponding circuit symbol are shown in figure 7. Laser diode construction, working and its applications. Tech first year page 1 of 10 question bank in physics lasers 1. Laser introduction principles of working of a laser population inversion characteristics of laser laser construction methods of achieving population inversion types of lasers ruby laser nd. The manual is intended for listeners of preparatory courses.\nMetal contact ptype material active region ntype material ntype material metal contact from the picture one can see, that in principle you have the same structure like a diode where you. This book has been written to serve as a text for revised syllabus of laser system and applications of dr. To help avoid confusion in terminology with the semiconductor laser, solid state lasers are sometimes now referred to as doped insulator lasers. The basic principle of an oscillator is a feedback circuit that is unstable. An important class of solidstate lasers are semiconductor lasers. The choice of material depends on the desired wavelength and properties such as modulation speed. An ntype semiconductor has plenty of free electrons and a very few numbers of holes. Engineering physics pdf notes enginering physics notes. The wavefunctions and the probability density functions are not normalized and shifted by the corresponding electron energy. The figure is calculated for a 10 nm wide well containing an electron with mass m0. In case the atom, still in an excited state, is struck by an outside photon having precisely the energy necessary for spontaneous emission, the outside photon is increased by the one given up by the excited atom, moreover, both the photons are released from the same excited state in the same phase, this process, called stimulated emission, is fundamental for laser. The term laser is an abbreviation which stands for light amplification by stimulated emission of radiation. A remarkable illustration of this concept is the qc terahertz laser, in which by judiciously introducing less than 2% of al atoms into a gaas crystal we transform a piece of bulk semiconductor into a performing farinfrared laser.\nLaser diodes can directly convert electrical energy into light. Lightemitting diodes circuit, working principle and application. Principles of semiconductor devices l length m ln electron diffusion length m lp hole diffusion length m m mass kg m0 free electron mass kg me effective mass of electrons kg mh effective mass of holes kg n electron density m3 ni intrinsic carrier density m3 ne electron density per unit energy and per unit volume m3 n0 electron density in thermal equilibrium m3. Laser light source basic principles of laser action in. So, the above process sets the principle for laser diode. Formulas and figures in the book are numerated individually for each chapter that makes easy its use by readers. Doped semiconductors ntype materials ptype materials diodes and transistors. Semiconductor lasers or laser diodes play an important part in our everyday lives by providing cheap and compactsize lasers. Semiconductor lasers are said to be the laser of the future. The requirements of the students have been fulfilled by explaining the basic principles of laser action, components of laser, various systems involved in. Later in 1960 the iranian physicist ali javan made the first gas laser using helium and neon. For us, today, this statement sounds totally strange and we may question how this point of view came up. The material which often used in semiconductor laser is the gallium arsenide, therefore semiconductor laser is sometimes known as gallium arsenide laser.\nIn order to understand the basic principle of a laser, it is instructive to first consider a passive resonator cavity, such as an arrangement of mirrors that creates a closed path for a light beam. Energy levels, wavefunctions left and probability density functions right in an infinite quantum well. Semiconductor laser diodes are no different in this respect. Fundamentals, types, and operations n n e 0 e e 1 e 3 e 0 e e 1 2 fast decay fast decay fast decay pumping pumping lasing lasing a b figure 1. A laser diode, ld, injection laser diode ild, or diode laser is a semiconductor device similar to a lightemitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diodes junction 3 laser diodes can directly convert electrical energy into light.\nLaser diode working principle instrumentation tools. A laser action will be achieved if the beam increases in intensity during. Spontaneous and stimulated emissions, laser action, characteristics of laser beamconcepts of coherence, hene and semiconductor lasers simple ideas, applications. It may be a bulk semiconductor, but more often a quantum heterostructure. The mode of operation is somewhat di erent than that of the laser described in the previous chapter. Introduction of lasers, types of laser systems and their operating principles, methods of generating extreme ultravioletvacuum ultraviolet euvvuv laser lights, properties of laser radiation, and modi. Their theoretical description is important not only from a fundamental point of view, but also in order to generate new and improved designs. In other words, we can say that the concentration of free electrons is high and that of holes is very low in an ntype semiconductor. Maimans laser, however, was only capable of pulsed operation due to its threelevel pumping scheme. In semiconductor laser theory, the optical gain is produced in a semiconductor material. Introduction to laser technology e1 e4 e3 e2 level populations quantum energy levels population inversion laser action ground energy level pumping process figure 36. Crosssection and circuit symbol of an ntype metaloxidesemiconductorfieldeffecttransistor. College on micro and nano photonics for life sciences 8 basic principles of light emission and absorption 1 absorption. The simplest configuration is made with only two mirrors, one being flat and one being curved.\nThe led is a special type of diode and they have similar electrical characteristics of a pn junction diode. Semiconductor lasers types, applications, construction. Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. Nov 24, 2015 semiconductor laser full topic engineering physics, b. The purpose of this chapter is to provide an overview of the principles of quantum confined semiconductor lasers relevant to most devices utilising conduction to valence band transitions. To explain the process of light amplification in a laser requires an understanding of the energy transition phenomena in the atoms of its active medium. Absorption is the process by which the energy of the photon is taken up by another entity, e. We consider in particular the case when this corresponds to the fundamental transverse mode of the laser cavity, which has a gaussian intensity. The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. Principle of laser action and methods of pumping action brainkart. Apj abdul kalam technical university aktu, lucknow and other universities where such types of courses are running. Light is emitted at a junction between two regions of opposite doping as shown in gure 4. In order to make effective use of this text, students should have already taken coursework. Department of ophthalmology and hansen experimental physics laboratory, stanford university, stanford, ca.\nDesigned for graduate students in physics, electrical engineering, and materials science, the text covers many recent developments, including diode lasers using quantum wells. It is similar to a transistor and has the operation like led but the output beam has the characteristics of laser light. Mechanical devices shutters, chopper wheel or spinning mirror. The text is intended for use in a first or second year course on semiconductors at the associate or baccalaureate level. The word laser is an acronym of light amplification by stimulated emission of radiation and aptly describes the theory behind the mechanics of laser generation. Law of mass action the np product is constant in te n o p o n i 2 t. Laser diode working principle a laser diode, or ld also known as injection laser diode or ild, is an electrically pumped semiconductor laser in which the active laser medium is formed by a pn junction of a semiconductor diode similar to that found in a lightemitting diode. Transistor lasers introduction structure and basic working principle principle of operation. Actually, an atom can generally stay at this excited state for 108 secs of time. Principles of optical detection, quantum efficiency, responsivity, general principles of pin photodetector, intrinsic absorption, materials and designs. The concept of the semiconductor laser diode was proposed by basov and javan. The second is pumped by a diode laser and produces a pulse duration of 1 to 100 ms by conjoining a train of qswitched. Semiconductors of p and n type with high carrier density are brought together. Lasers are devices that produce or amplify a beam of narrow, convergent light with a welldefined wavelength within the electromagnetic spectrum.\nLasers are devices that produce or amplify a beam of narrow, convergent light with a welldefined wavelength within. The output power of a given laser is 1mw and the emitted wavelength is 630nm. Indirect gap recent challenges use of heterostructure for direct bandgap type i structure ge laser at 1550 nm midinfrared laser based on gesn incorporation of c. The semiconductor laser is very small in size and appearance. In 1962, nick holonyak has come up with an idea of light emitting diode, and he was working for the general electric company. Name some properties, which make laser light different from ordinary light. Whenever a photon is incident on an atom, that atom is excited from a lower energy state to a higher energy state and two photons are released in this process. It assumes a basic knowledge of stimulated emission, laser action and semiconductor physics and begins with a short historical survey. The first is a pulsed laser capable of irradiating large areas with a scanning device. Developed from the authors classroomtested material, semiconductor laser theory takes a semiclassical approach to teaching the principles, structure, and applications of semiconductor lasers. It progresses from basic diodes through bipolar and field effect transistors. It is a gas laser built by ali javan at mit, with a wavelength of 632. Mobile charge carriers in semiconductors crystal structures, bonding mobile holes and electrons dopants and doping silicon in thermal equilibrium generationrecombination.\nThe acronym laser stands for light amplification by stimulated emission of radiation. The basic operating principles of the laser were put forth by charles. A remarkable illustration of this concept is the qc terahertz laser, in which by judiciously introducing less than 2% of al atoms into a gaas crystal we transform a piece of bulk semiconductor into. The basic principle of an oscillator is a feedback circuit that is. They consist of complex multilayer structures requiring nanometer scale accuracy and an elaborate design.\nThe lights can be produced through a process of optical amplification based on the stimulated emission of electromagnetic radiati. Describe how a semiconductor laser diode works a semiconductor laser diode consists of several parts. In lasers, photons are interacted in three ways with the atoms. Basic electronics optoelectronic diodes tutorialspoint. Principle of a laser excerpt from field guide to lasers in order to understand the basic principle of a laser, it is instructive to first consider a passive resonator cavity, such as an arrangement of mirrors that creates a closed path for a light beam. It is essential requirement for producing a laser beam. The first is a pulsed laser with pulse duration of 2 to 10 ms versapulse, coherent medical lasers, palo alto, ca. Dec 06, 2015 in this video lecture we will start learning about laser. Engineering physics phy1 common for all branches unit. Semiconductors, diodes, transistors horst wahl, quarknet presentation, june 2001 electrical conductivity.\nIn practise laser action cannot be achieved for only two levels, as described above. Pdf conference lecturer in laser introduction and the the principles of laser systems and the application of laser technology in chemical analysis and. Calculate the number of photons emitted per second. Semiconductor devices mohawk valley community college.1586 792 560 1331 227 1563 1638 1134 646 745 574 1027 1457 502 1499 1623 1069 739 513 1583 1277 1402 1624 115 302 1602 1338 1273 1529 1094 94 78 1603 1329 1107 690 411 1373 1034 1018 619 207 1409 172 352 1303 1039 12 1197","domain":"optical_engineering"}
{"url":"https://optictransceiver.wordpress.com/","date":"2017-04-23T23:27:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118851.8/warc/CC-MAIN-20170423031158-00516-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9291002750396729,"token_count":617,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__148522490","lang":"en","text":"Tiny Form-factor Pluggable Transceiver or SFPs are sometimes known as mini GBICs or gigabit interface converters, though the latter continues to be obsoleted from the former. SFPs just like the c-light Optic Transceivers are put to use in information transmission and telecommunications. These gadgets hyperlink other apparatuses which include routers and switches. For that matter, today’s SFP fiber optic transceivers are the regular elements applied and supported by countless industrial firms.\nFiber Optic Transceivers can assistance traditional communications components along the lines of Fibre Channel, Gigabit Ethernet, and SONET. SFP would be the upgraded model on the typical SFP and it could possibly assistance as much as 10Gbps of data prices. The sorts of SFP transceivers used differ based on distance. For instance, within a distance ranging 550 meters, the suitable SX SFP is 850nm. LX SFP which uses 1310nm is ideal for any distance of ten kilometers although ZX SFP could reach a distance of 80 kilometers or a lot more. Copper SFPs use the RJ45 interface. Despite the fact that the DOM function of SFPs is noncompulsory, it aids the user in figuring out authentic time SFP doing work standing.\nA number of the SFP transceivers applications consist of:\n1. Switching program\n2. High-speed personal pc connections\n3. Local and storage location networks or far more commonly known as LAN an and SAN\n5. FTTD or fiber-to-the-desktop\nsix. Metro entry rings\nseven. Point-to-point networking\n8. Gigabit Ethernet\n9. 1x/2x fiber channel\n10. SONET/SDH Network\nC-light http://www.c-light.com/ is 1 the primary supplier of telecommunications apparatus worldwide. The enterprise helps make to begin with price goods which might be compatible to several telecommunications gear manufacturers like for example Huawei and Ethernet. The SFP optic fiber transceivers that C-light manufactures are covered with complete experienced guarantee and they’re accessible at inexpensive charges. In truth, the C-light fiber optic transceivers are in demand in countries like Brazil, Norway, and in some cases in IT hub India. They match properly and work well with multinational brands along the lines of Alcatel and Hewlett-Packard.\nCorporations who’re around the lookout for excellent optic fiber transceivers need to seem no more as a result of C-light can supply the best SFP optic fiber transceivers while in the market. They continuously manufacture a broad selection of optical fiber CISCO XFP that do the job exceedingly well with KingNET, Juniper, HP, Cisco, and 3COM to title one or two. For IT goods makers who would like to get the most suitable discounts in networking equipment, C-light certainly is the business to visit.","domain":"optical_engineering"}
{"url":"https://trlindia.com/solar-direct-cooking-system/","date":"2023-12-04T13:40:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100529.8/warc/CC-MAIN-20231204115419-20231204145419-00760.warc.gz","language_score":0.8933603763580322,"token_count":226,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__177360405","lang":"en","text":"Solar Direct Cooking System consists of concentrating reflector that moves to track the movement of the Sun. In TRL Direct Cooking System the reflected and concentrated Sunlight enters a nearby kitchen directly through a secondary reflector to fall on a cooking pot or frying surface.\nEach morning, the operator rotates the concentrating reflector back to a starting position in which the reflected beam is aligned with the axis of rotation of the reflector, and starts the tracking mechanism (Electronic). Every few days the operator adjusts the angle between the axis of rotation and the concentrating reflector to accommodate the seasonal variation in the height of the Sun. Once the reflected beam is aligned with the axis of rotation of the concentrating reflector and the timer is in motion, the reflected beam remains aligned with the axis of rotation all the day. The reflecting surface of the concentrating reflector consists of a number of facets, usually flat solar grade mirrors. A concrete pad and a welded steel space frame provide support for the concentrating reflector. The area of the concentrating reflectors in the configurations shown here is usually about 10 sq. m. or 16 sq. m.","domain":"optical_engineering"}
{"url":"http://www.yuanyu.tw/medical/productDetail.php?id=72&department=18","date":"2019-04-25T21:51:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578742415.81/warc/CC-MAIN-20190425213812-20190425235812-00507.warc.gz","language_score":0.8365660309791565,"token_count":691,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__33465298","lang":"en","text":"The CF-HQ290Z Colonovideoscope is the optical magnification scope intended for observation of the colon with insertion from the anus and provides magnification of up to x80. The CF-HQ290Z features HQ image quality enabled by advanved optical technology, providing enhanced and crisper images compared with conventional Hight definition scope. The field of view has also been expanded from 140° to 170° (under normal conditions) to assist the detection of hidden lesions on the folded surfaces of the colon. Coupled with optical magnification and NBI, the endoscope supports the detailed obesrvation by enhancing small features such as blood vessels and the surface patterns on mucous membranes.Brochure\nWith its advanced OLYMPUS optics, the CF-HQ290ZL/I produces clear and high-resolution HQ images. In addition, the performance of the scope connected to the EVIS LUCERA ELITE system achieves noise reduction of the endoscopic image.\nThis scope magnifies images by 80x*, with its HQ image quality attaining close views of the mucosal surface clearly. Combined with the brighter NBI (Narrow Band Imaging), mucosal tissue and capillary networks are enhanced, to further support detailed observation.\n* When using HIGH DEFINITION LCD MONITOR OEV262H\nA 170° wide-angle field of view is now achieved. This can help physicians to detect mucosal changes more rapidly with less need for angulation.\nRIT combines three proprietary insertion tube technologies: PB (Passive Bending), HFT (High Force Transmission) and variable stiffness. These technologies are designed to facilitate complete colonoscopies by improving scope handling, insertability and ergonomics.\nPB helps EVIS LUCERA ELITE 290 Series scopes move through acute bends in the colon.\nHFT provides improved operator control for pushing, pulling and twisting maneuvers.\nVariable stiffness allows the physician to adjust the rigidity of OLYMPUS scopes as needed, by simply turning an adjustment ring on the scope control section.\n|Optical System||Field of view||Wide: 170° / Tele: 90°|\n|Direction of view||Forward viewing|\n|Depth of field||Wide: 7 to 100 mm / Tele: 2 to 3 mm|\n|Insertion Section||Distal end outer diameter||13.2 mm|\n|Distal end enlarged|\n|Insertion tube outer diameter||12.8 mm|\n|Working length||L: 1680 mm I: 1330 mm|\n|Instrument Channel||Channel inner diameter||3.7 mm|\n|Minimum visible distance||3.0 mm from the distal end|\n|Direction from which endotherapy accessories enter and exit the endoscopic image|\n|Water Jet Channel||Direction from which the water jet enter in the endoscopic image|\n|Bending Section||Angulation range||Up 180°, Down 180°|\nRight 160°, Left 160°\n|Total Length||L: 2005 mm I: 1655 mm|\n|Compatible EVIS LUCERA System||EVIS LUCERA ELITE VIDEO SYSTEM CENTER OLYMPUS CV-290|\nEVIS LUCERA ELITE XENON LIGHT SOURCE OLYMPUS CLV-290SL, CLV-290","domain":"optical_engineering"}
{"url":"http://www.simmonsigns.co.uk/product_LUA-LED-Vandal-Resistant-Sign-Lighting-System_60.html","date":"2013-06-19T06:03:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368708142388/warc/CC-MAIN-20130516124222-00046-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8617351055145264,"token_count":281,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__176344557","lang":"en","text":"The LUA is a thoroughly developed, time proven signlight system which is unmatched in its durability and ease of maintenance. Featuring a robust cast aluminium head which dovetails to a range of antirotational...\nParking Management Equipment > LUA LED Vandal Resistant Sign Lighting System\nThe LUA LED is an optically engineered sign light solution for the illumination of signs. Based on our thoroughly developed, time-proven system,it is unmatched in its durability and ease of maintenance.\nFeaturing a robust, vandal-resistant, cast aluminium head, which dovetails onto a range of anti-rotational fixing hardware, the LUA LED meets all site fixing requirements and will provide the ultimate in low maintenance, with the benefit of low cost of ownership.\n- High Visibility: Enhances nighttime visibility of critical signs.\n- Low Power Consumption: As low as 6 watts.\n- Tough : Robust cast aluminium construction with secure access.\n- Virtually vandal-proof.\n- Long-Life Lamps - Gives 10 to 11 years between lamp changes.\n- IP54 Sealing: Prevents ingress of harmful dust and moisture.\n- Excellent Light Distribution: With no light backwash.\n- Versatile Fixing System : A range of tough dovetail fixings to suit most applications.\n- 98.5% Recyclable.","domain":"optical_engineering"}
{"url":"https://magnasardo.com/product/elvax-plus/","date":"2024-02-27T20:29:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00311.warc.gz","language_score":0.8014121651649475,"token_count":182,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__50329001","lang":"en","text":"- World’s fastest XRF analyzer (throughput above 400 000 cps) – highest accuracy and excellent precision within the shortest measurement time\n- Wide element detection range from Na (Z=11) to U (Z=92)\n- Helium purge feature improves sensitivity to light elements (Na, Mg, Al, Si, P, S)\n- Excellent calibration stability, compensation of ambient temperature and pressure variations\n- Optional 16-position automatic sample changer increases productivity of your lab\n- Optional high-resolution CCD camera for precise sample positioning\n- Low maintenance cost\nElvaX Plus is a simple and powerful device to quickly do analytical jobs on a daily basis for the widest range of applications.\nElvaX Plus combines powerful analytical software toolkit with an easy-to-use interface, allowing even novice operators to perform any necessary measurements in minutes.","domain":"optical_engineering"}
{"url":"https://www.fs-pcba.com/camera-pcb/","date":"2024-04-18T04:03:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817187.10/warc/CC-MAIN-20240418030928-20240418060928-00427.warc.gz","language_score":0.9074873328208923,"token_count":1859,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__113307296","lang":"en","text":"CCTV Camera PCB\nA CCTV camera circuit board is an electronic circuit board with a camera and other electronic components that control the operation of a digital camera. The camera PCB contains all the required components to function well. It serves as the central hub for connecting various hardware components in the camera system. It helps to enable functions like image capture, storage, processing, and communication.\nThe integrated components of the PCB facilitate the transfer of signal and data between the components.\nSome of the key functions of camera PCB include:\n- Data Processing\n- Power Management\n- Control and Operation\n- Data Storage and Communication\nComponents of a Camera PCB\nThe major components of camera PCB are as follows:\n- Image Sensor\nImage sensor for camera PCB includes CMOS and CCD sensor. It captures the light and then converts it into an electrical signal for further processing. It is the major device of the camera which is responsible for transforming the scene into a digital image.\nLike the brain of living beings, it handles the task of the image data. Besides, it also enhances the quality and adds features to the image data. The processor is responsible for adjusting the colors and reducing noise. Finally, it helps to make your photo great looking.\nIt acts as a short-term storage. It holds the images before they are saved. The memory is essential for quick access to recent photos and smooth camera operations.\n- Interface Circuitry\nThe interference circuit links your camera to other devices like printers and computers. These are also called connectors. It enables the easy transfer of photos and data into external accessories.\n- Power Management System\nIt controls power distribution in the whole camera system. It ensures the camera components receive the correct amount of power for proper functioning. It helps to manage the battery usage and properly and efficiently.\n- Analog to Digital Converter\nIt also has the ADC system. It converts the analog signal from sensors into a digital signal such that the processor can handle it. The conversion is important for manipulating and processing the image data.\nApplications of Camera PCB\nCamera PCBs have a wide range of applications in various industries.\n- In surveillance systems, Camera PCBs are commonly used to monitor and safeguard enhancing security measures through continuous video surveillance and monitoring.\n- In the automotive industry, camera PCBs are crucial in advanced driver assistance systems (ADAS) and vehicle safety features.\n- In the medical field, you can see the camera PCBs in imaging and diagnostic devices for medical examinations. Devices like endoscopes and imaging systems use the camera PCB. These cameras provide high-quality images and videos for diagnosis the diseases.\n- Consumer electronics, including smartphones, tablets, and digital cameras, incorporate camera PCBs to enable photography and videography functionalities.\nCamera PCBs also play an essential role in maintaining EMI and EMC safety in electronic systems. By including EMI/EMC measures in camera PCB design, manufacturers may reduce interference. With this they can also assure regulatory compliance, improving the overall performance and dependability of electronic goods.\nPCB Camera Design Considerations\nBefore designing the camera PCB, you have to consider the following design considerations:\nSize and Form Factor\nDesigning a camera PCB involves optimizing its size and shape to fit within the device’s constraints. Balancing compactness with functionality is crucial, ensuring the PCB aligns with the camera’s form factor while accommodating necessary components and connectors for seamless integration.\nImage Quality and Resolution\nThe PCB design impacts the camera’s image quality and resolution. Attention to signal integrity, noise reduction, and proper grounding is essential to minimize interference and maintain high-quality image capture, ensuring sharpness, clarity, and color accuracy in photos and videos.\nEfficient power management is critical in camera PCB design to minimize energy consumption and prolong battery life. Implementing power-saving features, optimizing voltage regulation, and reducing standby power draw contribute to longer usage times and improved overall user experience.\nCompatibility with Other Components\nThe camera PCB must be compatible with other system components, including sensors, lenses, displays, and connectivity modules. Ensuring seamless communication and interoperability between these elements requires careful design consideration, including standardized interfaces and protocols for efficient data exchange.\nDesigning for environmental factors such as temperature, humidity, and vibration is essential for camera PCB reliability and longevity. Selecting robust materials, implementing protective coatings, and conducting thorough testing under various conditions help ensure the camera operates reliably in diverse environments.\nEffective thermal management is crucial to prevent overheating and maintain optimal performance in camera PCBs. Strategically placing heat sinks, designing airflow pathways, and implementing thermal dissipation techniques help dissipate heat generated by high-power components, ensuring stable operation and prolonging the component lifespan.\nSpecification of Camera PCB\nThe major specifications of Camera PCB are as follows:\nThe resolution of a camera PCB is the amount of pixels it can capture in a picture. Higher resolutions produce clearer and more detailed images, which is critical for applications needing fine visual analysis or high-definition output. Common resolutions include Full HD (1920×1080), 4K (3840×2160), and beyond, with sensor technology changes constantly pushing the limits of possible resolution.\nThink of frame rate as how many pictures a camera takes in a second to make a video. A higher frame rate means smoother video, which is important for things like security cameras, analyzing sports games, and fancy tech stuff.\nField of View (FOV)\nField of view is all about what a camera sees in its picture. It’s influenced by things like how strong the camera lens is and how big the camera’s eye is. A wider field of view shows more of what’s happening, while a narrower one focuses on details. Getting the right field of view matters, especially for things like watching a big area or looking at something close-up.\nThe kind of lens a camera uses affects how good the picture is, how much you can see in focus, and how well it catches light. There are different kinds of lenses, like some that always show things sharp and clear, some that can zoom in and out, and some that make things look funny (but in a cool way). Special lenses can show things in unique ways for special jobs.\nThe camera’s interface is like how it talks to other gadgets. It could be through USB, the internet, or special cables. Picking the right way for the camera to talk to other stuff makes sure everything works smoothly, especially if you’re watching live video or controlling the camera from far away.\nImage Processing Capabilities\nLots of cameras can do more than just take pictures. They can make them look better or figure out what’s in them in real time. Fancy parts inside the camera help with this, making sure it all happens quickly and making the camera better overall.\nSome cameras can take good pictures even when it’s dark. This is important for things like security cameras or seeing in the dark. How well a camera works in low light depends on how good its sensor is and some special tricks it knows to make things clearer.\nMaking sure a camera uses power wisely is super important, especially if it runs on batteries or needs to work in places with not much power. Smart tricks and special parts inside the camera help it use power better, so it lasts longer and stays reliable no matter what.\nThermal Camera for PCB Inspection\nA PCB thermal camera for circuit inspection is crucial in electronics. Unlike optical cameras, it detects infrared radiation and temperature variations on the PCB. This method helps to find the thermal characteristics accurately, detecting potential issues early on. Thermal cameras visualize thermal patterns, displaying the overheating components or poor soldering. Analyzing thermal images helps optimize thermal management strategies for better performance.\nOverall, thermal cameras offer a proactive approach to PCB inspection. It allows engineers and technicians to identify and address potential thermal issues. By providing detailed thermal data and insights, these cameras help to optimize thermal management strategies.\nChoosing a reputable manufacturer with a track record of producing high-quality camera PCBs is essential. Additionally, proper testing and quality assurance processes should be implemented throughout the design, manufacturing, and assembly stages to ensure reliability and performance consistency. At FS PCBA, from design to fabrication and assembly, we carry out all the PCB processes according to industry guidelines.\nWe want to ensure you get the best quality PCB. So, contact us today and get your quote in no time. We would be happy to guide you through your PCB journey.\nGet a quote\nTop 10 PCB Design Mistakes and How to Avoid Them: A Beginner’s Guide Have you wondered how smartphones and smartwatches fit so much great stuff\n5 Alternatives to JLCPCB Manufacturing Company You are reading this content, which shows how crucial PCBs are for bringing your electronic ideas to life. You know the","domain":"optical_engineering"}
{"url":"https://en.alpha-star.org/189.html","date":"2024-04-22T18:46:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00638.warc.gz","language_score":0.9123375415802002,"token_count":1176,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__90670967","lang":"en","text":"THURSDAY, MARCH 10, 2016\nBeijing, March 10, 2016 – MediaTek today announced the ImagiqTM image signal processor (ISP), a complete, self-developed application solution for its MediaTek HelioTM high-end smartphone chipset solution to meet increasing demands for multimedia features. MediaTek Imagiq integrates a number of advanced imaging technologies and photography features, fully leveraging its dual camera design, significantly enhancing image quality and videography experiences, as well as making photography easier. This allows consumers to use smartphones to capture professional photos or videos easily, opening up wonderful possibilities of uncompromising photography.\n“Competing in the smartphone industry today requires shifting from focusing on hardware and specifications to content and experience, meaning multimedia technology advancements are the key to winning future smartphone market share,” said Kelvin Jou, Chief Technology Officer and Corporate Vice President, MediaTek. “The camera is an important channel for the mobile device to capture and generate content from the outside world. Imagiq combines a number of advanced technologies that enable cameras to capture and generate high-quality images and video content, transforming smartphones’ photography experiences.”\nAs dual cameras are becoming standard on high-end smartphones, MediaTek Imagiq is designed to offer the following features, significantly enhancing the dual photography experience:\n- Real-Time Large Aperture Depth-of-Field Effect – With the built-in 3D sensor, the ISP can capture depth mapping in real-time, and with a large aperture of greater than f/0.8, it can produce large aperture depth-of-field effects in real-time even for previews.\n- Reality Depth of Field (DOF) – Users can map objects and backgrounds to multiple layers with a DOF feature. The smartphone can smartly position the object and background and apply creative effects to each layer in real time to produce photos or videos with DOF effects.\n- Bayer and Mono Cameras – This multiple-sensor design can capture three times the light of a traditional single-bayer sensor, thus reducing image noise and increasing quality.\n- Dual Camera Zoom – The ISP is equipped with a wide-angle lens and a telescope in its dual camera system. Imagiq combines these wide-angle and zoomed captured images into one image, dramatically increasing image clarity when shooting distant objects.\nExcellent image and video quality, as well as convenience and ease-of-use, are two key concerns from consumers in mobile photography, which Imagiq can effectively address.\nThe image enhancement technologies of Imagiq enable it to produce high quality, vivid, near life-like images even within the demanding conditions of low-light environments and camera shake. It is so simple to operate even everyday users can achieve professional photography quality. Imagiq features include:\n- Hybrid Autofocus (Phase Detection Auto Focus (PDAF) and Laser Auto Focus) – Combining PDAF and Laser AF to realize a faster autofocus speed, which is also applicable in dimly lit environments.\n- Pixel-Level Auto Focus – A focus speed and accuracy comparable to the human eye. The focus speed is four times that of traditional autofocus, making it especially suitable for shooting fast-moving objects in real-time.\n- New De-Mosaic and Sharpness Engine – With its large-scale texture recognition and implementation of adaptive color image abilities, Imagiq produces smoother and sharper images, which is especially useful when taking photos in dimly lit environments.\n- New Adaptive De-Noising Engine – Imagiq reduces image noise even in low-light environments, allowing the ISP to render high quality video and pictures with near life-like quality.\n- Automatic Image Stabilization (AIS) – Imagiq can rapidly combine four consecutively captured images into one image, eliminating common blur effects from camera shake.\n- TrueBright Engine – With first-time RWWB sensor support, Imagiq powers twice the sensitivity to light of a traditional RGB sensor, allowing consumers to take crisp, clear, high-quality photos even in low light.\n- Upgraded 3A HW Engine– Imagiq helps cameras capture more natural, vivid and detailed photos.\nIn addition to image quality enhancements, Imagiq also offers a rich set of videography features:\n- Electronic image stabilization (EIS) and Gyro – Using a sophisticated hardware engine to predict motion, Imagiq eliminates a video’s camera shake and distortion.\n- 1/32 Super-Slow Motion – In addition to supporting 720p video, Imagiq can shoot 1080p video at 480 frames per second in 1/32 super-slow motion playback, resulting in a 960 FPS video. Users are also able to edit videos using super-slow motion.\n- Temporal Noise Reduction – Imagiq uses advanced temporal noise reduction to locate and reduce pixel movement in videos, resulting in cleaner and more detailed video quality in both video previews and filming.\n- 4K HDR Shooting – Support 4K HDR shooting for the first time, producing more compelling video image quality.\nMediaTek high-end mobile systems on chip (SoCs) ranging from the currently released MediaTek Helio P20 and Helio X20 to future SoCs will use the Imagiq ISP, allowing smartphone manufacturers to customize their choice of Imagiq’s features according to their needs.\nMediaTek will demonstrate some of the main features of Imagiq at the “MediaTek Helio X20 Launch Event” on March 16 in Shenzhen, China.\nReprint from MediaTek official website: http://www.mediatek.com/en","domain":"optical_engineering"}
{"url":"https://router.kg/store/mikrotik/sfp-transceivers/s-3553lc20d","date":"2023-12-11T23:07:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679518883.99/warc/CC-MAIN-20231211210408-20231212000408-00426.warc.gz","language_score":0.6673563718795776,"token_count":299,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__121606150","lang":"en","text":"Пара SFP трансиверов (S-3553LC20D)\n- Производитель: Mikrotik\n- Модель: S-3553LC20D\n- Наличие: Уточняйте наличие\nS-35/53LC20D is a pair of SFP transceivers, the S-35LC20D is a 1.25G Single Mode optical SFP module with a LC connector, T1310nm/R1550nm, which works for connections up to 20km and supports DDM. The S-53LC20D is a 1.25G Single Mode optical SFP transeiver with an LC connector,T1550nm/R1310nm, which works for connections up to 20km and supports DDM.\nUnits are tested and compatible with RB260GS, RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UAS-RM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN CCR1036-12G-4S. Units are compatible with non-MikroTik SFP devices as well.","domain":"optical_engineering"}
{"url":"https://fwnetworks.co.uk/our-network/services/dark-fibre/","date":"2024-04-16T21:30:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817106.73/warc/CC-MAIN-20240416191221-20240416221221-00604.warc.gz","language_score":0.9359515309333801,"token_count":144,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__26472334","lang":"en","text":"For a business that requires a scalable, reliable, and secure connection, our dark fibre solution fits.\nDark Fibre is the unused fibre optic cable infrastructure that has not been activated by a provider and is not carrying any service or traffic – also known as an unlit point-to-point connection. Targeted at Internet Service Providers (ISPs), our dark fibre network enables the expansion of existing networks and reduces the costs of upgrading or installing new networks.\nIndividual business partners provide the transmission equipment suitable for their needs and decide the bandwidth requirements for their network and customers.\nAdditionally, our Dark Fibre networks enable sole use unlimited scalability, accommodate unlimited bandwidth, and provide 100% self-managed security.","domain":"optical_engineering"}
{"url":"https://innovativeengineeredsolutions.com/experience-process-improvements-inspections/","date":"2021-12-05T23:53:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363226.68/warc/CC-MAIN-20211205221915-20211206011915-00628.warc.gz","language_score":0.8004583716392517,"token_count":296,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__23242713","lang":"en","text":"Concentrations & Experience\n- Professional disciplines in design, engineering, fabrication, controls and software.\n- Developing & incorporating process & quality improvements applied to a variety of manufacturing operations within the aerospace, medical, automotive, & general manufacturing sectors.\n- Applying and integrating various non-contact sensor technologies for detecting anomalies and measurement.\n- Design & fabrication of both semi or fully automated work stations employing special fixturing, pick’n’place units, robotic end effectors, etc.\n- Applying & integrating process controls (PLC, HMI, PC) & developing custom application specific operating routines based on standard PC platforms.\n- Conducting R&D programs, feasibility analyses, and prototyping.\nYou can use IES’s sensor technology expertise for improving control of your processes. We have years of experience implementing unique process improvements and applying sensors to numerous manufacturing quality control and process inspection applications.\nExamples of this expertise include:\n- IES carefully reviews customer application requirements then selects the appropriate sensor(s) for detecting and monitoring specific anomalies within an operation.\n- Using laser micrometer inspection for precision gauging of specific part features.\n- Applying photoelectric, laser displacement, confocal, non-contact type sensors applied to detecting specific surface and dimensional characteristics.\n- Integrating machine vision for flaw detection or process control applications.\n- Displaying and collecting sensor inspection data for improved process control.","domain":"optical_engineering"}
{"url":"https://ihouseu.com/lake-festival-austria-with-massive-laser-show/","date":"2024-04-16T11:53:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817081.52/warc/CC-MAIN-20240416093441-20240416123441-00113.warc.gz","language_score":0.943074643611908,"token_count":214,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__124068917","lang":"en","text":"Lake Festival Austria with massive laser show\nThe laser show at this year’s Lake Festival in Austria was spectacular: Laserfabrik used four RTI NANO RGB 30 laser systems together with Lasergraph DSP controllers for covering the whole venue and creating spectacularly colored effects.\nThe German Laserworld company Ray Technologies GmbH, located in Valley next to Munich, manufactures high end show laser light equipment, especially for demanding applications like touring, cruise ships and multimedia shows. The RTI NANO RGB 30 laser systems were especially developed for well-color-balanced high power applications. Due to them being waterproof IP 65, they are the main choice of many pro laser show companies like Laserfabrik.\n“The major challenges at this event were the various changes in requirements from the organizer’s side. Due to our many years of experience it was no problem to get a spectacular show going anyway” says Daniel Brune, CEO of Laserfabrik.\nThe Lake Festival took place from August 21-23 near Graz, Austria.","domain":"optical_engineering"}
{"url":"https://nidfashions.com/product/best-compact-small-telescope-monocular/","date":"2024-04-15T03:49:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816939.51/warc/CC-MAIN-20240415014252-20240415044252-00027.warc.gz","language_score":0.8820423483848572,"token_count":792,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101750004","lang":"en","text":"The Portable HD Night Vision Mini Pocket Monocular Small Telescope. A compact Telescope designed to elevate your outdoor adventures to new heights. With its sleek black design and unparalleled performance, this telescope stands out as the best small telescope for any enthusiast or explorer.\nEquipped with high magnification capabilities, this mini pocket telescope offers 8 times magnification, allowing you to observe distant objects with exceptional clarity and detail. Whether you’re stargazing under the vast night sky or birdwatching in the wilderness, every moment becomes a vivid spectacle with this powerful tool in hand.\nDesigned to withstand the elements, this telescope boasts a water resistance level of IPX4, making it a reliable companion for outdoor activities such as fishing and camping, even in wet conditions. No need to worry about sudden showers or splashes, simply focus on the breathtaking views that await you.\nIt signifies a level of quality that exceeds expectations. Each lens is meticulously coated with a material that not only enhances optical clarity but also provides robust protection against scratches and abrasions. With this advanced coating, every image you capture is rendered with pristine precision, ensuring an unparalleled viewing experience.\nThanks to its central focus type, this mini pocket Small Telescope ensures that every image remains sharp and clear, allowing you to effortlessly spot and identify objects with ease. Whether you’re scanning the horizon for celestial wonders or observing wildlife in their natural habitat, precision is paramount, and this telescope delivers.\nCompact, lightweight, and incredibly versatile, the Portable HD Night Vision Mini Pocket Monocular Telescope is the perfect companion for any outdoor enthusiast or adventurer. So why settle for anything less? Elevate your explorations with the best small telescope on the market and unlock a world of endless discovery.\n- Portability: As a compact and lightweight device, this mini pocket telescope is effortlessly portable, allowing you to take it wherever your adventures lead. Whether hiking through rugged terrain or embarking on a spontaneous road trip, its small size makes it easy to carry and store, ensuring you never miss a moment of exploration.\n- Versatility: From stargazing sessions under the night sky to birdwatching escapades during the day, this telescope offers unparalleled versatility. Its high magnification capabilities and superior optical clarity make it suitable for a wide range of activities, whether you’re an astronomy enthusiast or a nature lover.\n- Enhanced Viewing Experience: With its high magnification and superior lens coating, this telescope delivers an enhanced viewing experience like no other. Every image is rendered with stunning clarity and detail, allowing you to immerse yourself in the beauty of the world around you. Whether observing distant galaxies or admiring intricate details in nature, every moment becomes a captivating spectacle.\n- Durable Construction: Built to withstand the rigors of outdoor exploration, this mini pocket telescope features a rugged construction that can endure various environmental conditions. Its water resistance level of IPX4 ensures reliable performance even in wet conditions, giving you the confidence to explore with peace of mind.\n- Ease of Use: Designed for intuitive operation, this telescope offers a user-friendly experience for enthusiasts of all levels. With its central focus type and ergonomic design, adjusting focus and capturing stunning images is quick and effortless. Say goodbye to complicated setup processes and hello to seamless exploration.\n- Educational Tool: Whether you’re a seasoned astronomer or a curious novice, this mini pocket telescope serves as an invaluable educational tool. Explore the wonders of the cosmos, study celestial bodies, and deepen your understanding of the universe with this versatile device. It’s perfect for inspiring curiosity and sparking a lifelong passion for discovery.\nAffordable Luxury: While offering premium features and performance, this mini pocket telescope remains surprisingly affordable, making it accessible to enthusiasts of all budgets. Experience the luxury of high-quality optics without breaking the bank, and embark on your journey of exploration with confidence and excitement.","domain":"optical_engineering"}
{"url":"https://growingwithleds.com/the-benefits-of-full-spectrum-led-lighting/","date":"2023-11-29T02:46:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100047.66/warc/CC-MAIN-20231129010302-20231129040302-00335.warc.gz","language_score":0.9455255270004272,"token_count":1698,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__52004013","lang":"en","text":"Full spectrum LED lighting is quickly becoming the go-to option for many different kinds of applications. This type of lighting offers a number of advantages that make it an excellent choice for both commercial and residential spaces and can help illuminate a range of applications. To understand the many benefits of full spectrum LED lighting, it’s important to have a basic understanding of how they work.\nTable of Contents\nWhat Is Full-Spectrum LED Lighting?\nFull spectrum LED lighting is essentially a type of LED lighting system that produces a broad range of colors across the visible light spectrum. It is designed to replicate the full spectrum of light that reached Earth from the sun and to provide a more natural illumination than traditional lighting. The color range full spectrum LED lights produce is roughly equivalent to what you’d find during an overcast day.\nFull-spectrum LED lighting is beneficial for a variety of reasons. It can help to reduce eye strain, as the light is more natural and easier on the eyes. It can also help to improve mood and productivity, as the light is more natural and can help to create a more pleasant atmosphere. Additionally, full spectrum LED lighting can help to reduce energy costs, as it is more efficient than traditional lighting.\nFull-spectrum LED lighting is becoming increasingly popular in both residential and commercial settings. It is often used in offices, schools, and other public spaces, as it can help to create a more comfortable and productive environment. It is also becoming more popular in homes, as it can help to create a more natural and inviting atmosphere.\nHow Does Full-Spectrum LED Lighting Work?\nFull spectrum lighting relies on advanced LED bulbs that use proprietary LEDs to create a range of colors from violet to red. The distinct types of light get produced due to the calibrated mixture of specific blue and red wavelengths. These wavelengths result in a continuous frequency that provides an extensive range of colors for interior décor and for general illumination. This color range can also be applied to specific shades between 4,000K and 10,000K.\nFull spectrum LED lighting is also beneficial for its energy efficiency. LED bulbs use significantly less energy than traditional lighting, and they last much longer. This means that you can save money on your energy bills and reduce your environmental impact. Additionally, LED bulbs are much cooler than traditional bulbs, so they don’t produce as much heat, making them safer to use in enclosed spaces.\nThe Advantages of Full-Spectrum LED Lighting\nFull spectrum LED lights offer multiple advantages that make them uniquely suited to different applications. From cost savings to improved energy efficiency and longer lifespan, there are many advantages to LED lights.\nCost Savings Benefits of Full-Spectrum LED Lighting\nOne of the key advantages of full spectrum lighting is the fact that it can help you save money on your energy costs. The enhanced energy efficiency of full-spectrum LED lights can significantly reduce energy consumption, leading to lower energy bills. Additionally, since this type of lighting requires less frequent replacement, you can save money on maintenance costs.\nEnergy Efficiency of Full-Spectrum LED Lighting\nFull spectrum LED lights consume significantly less energy than other traditional lighting options, making them an attractive option for businesses and homes looking for enhanced energy efficiency. They’re also able to last up to 50 times longer than traditional incandescent bulbs, making them much more cost-effective in the long run.\nEnvironmental Impact of Full-Spectrum LED Lighting\nUsing full-spectrum LED lights has a much smaller environmental impact than using traditional lights. Since these lights typically last up to ten times longer compared to traditional lighting, they reduce unnecessary waste and lower the use of non-renewable resources.\nLong Life Span of Full-Spectrum LED Lighting\nFull spectrum LED lighting is designed with longevity in mind, with some lights lasting up to 50 times longer than traditional incandescent bulbs. This dramatically reduces how often you need to replace your bulbs, making them an economical option in the long run.\nPotential Health Benefits of Full-Spectrum LED Lighting\nFull spectrum LED lights are not only beneficial for businesses and homes when it comes to cost savings and energy efficiency, but they’re also beneficial for human health in more ways than one. Research suggests that this type of lighting helps improve overall mood and alertness due to its natural spectrum that’s closer to natural sunlight. This can reduce fatigue and ensure people are more alert throughout the day.\nSafety Benefits of Full-Spectrum LED Lighting\nFull spectrum LED lights are also safer than traditional lighting options. Since they don’t produce any heat, they’re less likely to cause fires or other safety hazards. Additionally, they don’t contain any hazardous materials, making them a much safer option for homes and businesses.\nThe Versatility of Full-Spectrum LED Lighting\nFull-spectrum LED lights are incredibly versatile and can be used in a variety of applications. From residential and commercial lighting to automotive and industrial lighting, these lights can be used in almost any setting. Additionally, they come in a variety of shapes, sizes, and colors, making them easy to customize for any application.\nDifferent Types of Full-Spectrum LED Lights Available\nThere are several different types of full spectrum LED lighting available, with each one offering its own set of advantages. Standard monochromatic full-spectrum LED lights are designed to emit a single type of light color across the entire visible light spectrum. This type of lighting offers consistent lighting while still providing enhanced energy efficiency and cost savings. Full-color full-spectrum LED lights, on the other hand, typically include higher quality materials, allowing them to generate better quality light as well as an enhanced color gamut compared to standard full-spectrum lighting.\nFull spectrum LED lights are also available in a variety of shapes and sizes, making them suitable for a wide range of applications. For example, some full-spectrum LED lights are designed to be used in outdoor settings, while others are designed for indoor use. Additionally, some full spectrum LED lights are designed to be used in specific applications, such as for growing plants or for providing a specific type of lighting in a retail setting.\nFull spectrum LED lights are also available in a variety of wattages, allowing users to choose the right amount of light for their specific needs. For example, some full-spectrum LED lights are designed to provide a low wattage, while others are designed to provide a higher wattage. Additionally, some full-spectrum LED lights are designed to be dimmable, allowing users to adjust the amount of light they receive.\nTips for Installing and Maintaining a Full-Spectrum LED System\nInstalling and maintaining a full spectrum LED system properly is crucial for getting the most out of it. Here are some top tips for installing and maintaining a full spectrum LED system:\n- Make sure your bulbs are firmly secured into their casing.\n- Replace your bulbs as soon as they burn out or start dimming in order to avoid dipped lighting quality.\n- Run regular maintenance checks on your LED system to make sure everything is running as it should be.\n- Keep your full spectrum bulbs away from direct sunlight or humid environments, as this can reduce their lifespan.\nIt is also important to clean your LED system regularly to ensure that dust and dirt do not build up and interfere with the performance of the system. Additionally, make sure to check the wiring of your LED system regularly to ensure that it is in good condition and that there are no loose connections.\nConclusion: Why Choose Full-Spectrum LED Lighting?\nFull spectrum LED lighting offers a number of advantages that make it an ideal choice for different types of applications. From reduced energy costs to improved environmental sustainability, this type of lighting offers unique advantages that make it a great option for both commercial and residential spaces. Furthermore, with its numerous health benefits and enhanced quality lighting, full spectrum LED lights can help provide better illumination for a range of uses.\nIn addition, full-spectrum LED lighting is highly customizable, allowing users to adjust the color temperature and brightness to suit their needs. This makes it a great choice for creating the perfect ambiance in any space. Furthermore, full spectrum LED lighting is also highly durable and long-lasting, making it a cost-effective option for any lighting project.","domain":"optical_engineering"}
{"url":"https://eual.immaginepersistente.it/page/nqqn","date":"2023-03-29T07:17:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948951.4/warc/CC-MAIN-20230329054547-20230329084547-00176.warc.gz","language_score":0.8296495079994202,"token_count":2148,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__271257504","lang":"en","text":"class=\" fc-falcon\">US $26. Engrave faster than ever before and anyone else.\n3d Sub-surface 3d crystal laser engraving machine price for crystal glass / set. . . Happaiersouty Twotrees 3D Printer Laser- Engraving Machine Y-axis Rotary Roller Engraving Module for Engraving. . Provide Customized Crystal Balls 3D Lazer Engraving Machine for 3D Gifts With compact size and portable design, STNDP-Q Customized for crystal balls. And it is also suitable for mass production of 2D / 3D animals, plants, buildings, vehicles, ships, aircraft and other models of products and 3D scene.\nModel: PE-DP-C1. . Engrave faster than ever before and anyone else. class=\" fc-falcon\">US $26. . There is also a foldable bracket for placing the monitor and keyboard.\nYou can get inexpensive 3d engraving glass with discounted price from the most reputable wholesalers. MOQ: 1 Container. Big engraving range: the engraving area of the laser photo crystal engraving machine can reach 450 mm ×450 mm ×160mm, which can meet the needs of mass production. The machine can continuously working 12 hours with steady performance.\n00 - $5,000. Laser Engraving Machine Application. 5W Laser Module Head For XY-3 PRO V2 3D Printer Kits. This 3d laser crystal engraving machine LE-X3000 is able you to engrave 3d/2d laser crystal at super speed, which fit into customized 3d laser crystals and massive products. The 3D crystal laser subsurface engraving machine, usually also be called as 3D Laser machine, Crystal laser machine, 3D crystal Engraver, which is a special kind laser machine used for make 2d or 3d laser images or 2d images into crystals, this kind unique and attractive crystal gifts, the engraved image will not get fade forever, so, it’s a new and great business in most countries of world. .\nTrade platform for China crystal subsurface engraving machine price manufacturers and global crystal subsurface engraving machine price buyers provided by Made-in-China. Introduction. High Quality Air Cooling 3D Glass Laser Engraving Machine For Sale. 3d laser engraving machine - crystal/glass engraving price in india.\nProvide Customized Crystal Balls 3D Lazer Engraving Machine for 3D Gifts With compact size and portable design, STNDP-Q Customized for crystal balls. 3, Our machine good for quantity production. Big engraving range: the engraving area of the laser photo crystal engraving machine can reach 450 mm ×450 mm ×160mm, which can meet the needs of mass production. . The 3D crystal laser subsurface engraving machine, usually also be called as 3D Laser machine, Crystal laser machine, 3D crystal Engraver, which is a special kind laser machine used for make 2d or 3d laser images or 2d images into crystals, this kind unique and attractive crystal gifts, the engraved image will not get fade forever, so, it’s a new and great business in most countries of world.\n2) Ensure the accuracy higher than similar models Read More.\nAll images are enhanced by our team, no automations. .\n. . com.\nCO2 Sealed Laser Tube,10. .\n. China Crystal Crafts, Engraving Machine, Laser Engraving Machine, offered by China manufacturer & supplier -Wuhan Syntony Laser Co.\n. 3 Global 3D Crystal Laser Engraving Machines Market Share by Price Tier (2015-2020): Low-End, Mid-Range and High-End 7 Market Size by Application (2015-2026) 7. China 3D Laser Crystal Laser Engraving Machine Hsgp-2kc details, find the detailed info about 3D Laser Crystal Laser Engraving Machine Hsgp-2kc four your sourcing crystal products guide on China-crystal. Product Categories.\nIts a 3D Laser Crystal Engraving Machine that is semi automatic. Professional Factory 1500*1000mm 3D Glass Laser Engraver in Glass And Crystals with CE STNDP-801AB1 is a special designed for the start level business model, besides the goods 3d.\n. 3D Crystal Engraving Machines 3D Laser Engraving Machine for Crystal Sub-surface Laser Engraving. Perfect Laser 3D laser crystal engraving machine is used to engrave 2D or 3D design inside of acrylic, crystal, glass, and other transparent material. .\n. 3d Sub-surface 3d crystal laser engraving machine price for crystal glass / set.\n. Categories: Laser Marking Machine: Place of Origin: CHINA:.\nLaser Frequency: 4000Hz. . The larger the focal length of the field lens, the larger the focusing spot; at the same spot overlap ratio, the filling line spacing can be increased, thereby improving the marking efficiency. . $ 285.\n. . Newer Post Older Post Home.\n. Laser Engraving the skills of our qualified team of professionals, we are instrumental in offering a wide range of Desktop 2 X 1.\nYour source for personalized 3D crystal engraving. 1. . .\nTrade platform for China crystal subsurface engraving machine price manufacturers and global crystal subsurface engraving machine price buyers provided by Made-in-China. Very easy for operate: Open the 2D or 3D photo / picture which you want to engrave from our software, then the software will control our. China 3D Crystal Laser Engraving Machine manufacturers - Select 2022 high quality 3D Crystal Laser Engraving Machine products in best price from certified Chinese Wood Machine, Sand Making Machine suppliers, wholesalers and factory on Made-in-China. . 3D Laser Engraved Crystal Cube Machine Cutting Price, Find Details about Acrylic Laser Cutting, 3D Laser Crystal Engraving Price from 3D Laser Engraved Crystal Cube Machine Cutting Price. .\nUS. . Dimensions. The control system is CNC.\n. Ethan McPherson 2020.\n00 - $205. 07. <strong>3D Surface Crystal Engraving Machine, Model Name/Number: Mls2000b-hs. The laser cutter machine can reach Europen safety standard.\nHumanized 3D Laser Glass Engraving Machine for Acrylic/ Crystal PE-DP-A1 A2. Highly integrated: the 3D laser engraving machine price is equipped with a n industrial computer. . .\nAdvantages of 3d photo crystal laser engraving machine price.\n- hu – The world’s largest educational and scientific computing society that delivers resources that advance computing as a science and a profession\n- og – The world’s largest nonprofit, professional association dedicated to advancing technological innovation and excellence for the benefit of humanity\n- bj – A worldwide organization of professionals committed to the improvement of science teaching and learning through research\n- sb – A member-driven organization committed to promoting excellence and innovation in science teaching and learning for all\n- ze – A congressionally chartered independent membership organization which represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry\n- dl – A nonprofit, membership corporation created for the purpose of promoting the advancement and diffusion of the knowledge of physics and its application to human welfare\n- jn – A nonprofit, educational organization whose purpose is the advancement, stimulation, extension, improvement, and coordination of Earth and Space Science education at all educational levels\n- dw – A nonprofit, scientific association dedicated to advancing biological research and education for the welfare of society\n(1)8000 hours' warranty for diode. .\n- th – Open access to 774,879 e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics\n- zb – Streaming videos of past lectures\n- tn – Recordings of public lectures and events held at Princeton University\n- sl – Online publication of the Harvard Office of News and Public Affairs devoted to all matters related to science at the various schools, departments, institutes, and hospitals of Harvard University\n- dd – Interactive Lecture Streaming from Stanford University\n- Virtual Professors – Free Online College Courses – The most interesting free online college courses and lectures from top university professors and industry experts\n600mm x 400mm. China Raycus Ipg Fiber Laser Source Price for 3D Crystal Laser Engraving Carving Printing Machine, Find details about China Fiber Laser Source, Laser Fiber Source from Raycus Ipg Fiber Laser Source Price for 3D Crystal Laser Engraving Carving Printing Machine - Guangdong Gengseng Intelligent Equipment Co. 2d 3d crystal laser engraving machine. . should you have any query or wish to place an initial order please do not. Max engraving range. 100W Series 3D Crystal Laser Engraving Machine Price for Photo FOB Price: US $1,900-4,999 / set. The machine open up a new mode of 3D marking on oblique planes, segment gaps, cylinders, circular cones, spherical surfaces and extruded surfaces. . We and our partners store and/or access information on a device, such as cookies and process personal data, such as unique identifiers and standard information sent by a device for personalised ads and content, ad and content measurement, and audience insights, as well as to develop and improve products.\n, Ltd. .","domain":"optical_engineering"}
{"url":"https://ryovebopil.ga/laser-spectroscopy.php","date":"2020-04-08T04:25:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371810617.95/warc/CC-MAIN-20200408041431-20200408071931-00244.warc.gz","language_score":0.9016296863555908,"token_count":1931,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__146192987","lang":"en","text":"Applications of laser spectroscopy in space and environmental applications. Laser Spectroscopy for Sensing: Fundamentals, Techniques and Applications, Second Edition, examines the latest advances in laser spectroscopy and its use in a diverse range of industrial, medical and environmental applications.\nShop and Discover over 51, Books and Journals - Elsevier\nThe book provides an overview of laser spectroscopy at three levels, including the fundamental aspects to consider when planning use of laser spectroscopy to solve a problem from the sample properties to the laser properties to the data analysis , the technical aspects of several spectroscopic techniques, and the fields of applications of such techniques. New sections include key advancements from the field and chapters surrounding Raman Spectroscopy and Laser-induced breakdown spectroscopy.\nHis panel covers the fundamentals of laser-induced plasmas, the application of laser spectroscopies such as LIBS, Fluorescence, Raman, FTIR, as fundamental diagnostics as well as sensing techniques for defense, industrial, environmental, biomedical applications and the study of propagation of ultrashort laser pulses for sensing purposes at distances up to the kilometer range. A large part of his research focuses also on the quantification of interferences in spectroscopic signals.\nWe are always looking for ways to improve customer experience on Elsevier. We would like to ask you for a moment of your time to fill in a short questionnaire, at the end of your visit. If you decide to participate, a new browser tab will open so you can complete the survey after you have completed your visit to this website. Thanks in advance for your time. Skip to content.\n- Ultrafast laser spectroscopy - Wikipedia.\n- 2nd Edition.\n- Table of contents!\nSearch for books, journals or webpages All Pages Books Journals. Editors: Matthieu Baudelet. Paperback ISBN: Imprint: Woodhead Publishing. Published Date: 1st December Page Count: Pre-Order Expected Release date: December 1, Sorry, this product is currently out of stock. Institutional Subscription. Free Shipping Free global shipping No minimum order.\nMultivariate analysis, chemometrics, and machine learning in laser spectroscopy Part II: Laser spectroscopy techniques 6. Presents the fundamentals of laser technology for controlling the spectral and temporal aspects of laser excitation Explores laser spectroscopy techniques, including Raman Spectroscopy and Laser-Induced Breakdown Spectroscopy Considers the spectroscopic analysis of industrial materials and their applications in nuclear research and industry. Powered by. You are connected as. Connect with:.\nUse your name:. JART publishes manuscripts describing original research, with significant results based on experimental, theoretical and numerical work. The journal does not charge for submission, processing, publication of manuscripts or for color reproduction of photographs. JART classifies research into the following main fields: Material Science Biomaterials, carbon, ceramics, composite, metals, polymers, thin films, functional materials and semiconductors.\nComputer Science Computer graphics and visualization, programming, human-computer interaction, neural networks, image processing and software engineering. Industrial Engineering Operations research, systems engineering, management science, complex systems and cybernetics applications and information technologies Electronic Engineering Solid-state physics, radio engineering, telecommunications, control systems, signal processing, power electronics, electronic devices and circuits and automation.\nInstrumentation engineering and science Measurement devices pressure, temperature, flow, voltage, frequency etc. SRJ is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and qualitative measure of the journal's impact. SNIP measures contextual citation impact by wighting citations based on the total number of citations in a subject field.\nDonate to arXiv\nThe design and construction of an experimental system for studying two photon spectroscopy processes in atomic rubidium is presented. It is designed to measure absorption and polarization rotation induced by any of the two laser beams and also the visible fluorescence that results from decay of the excited states.\nTwo home-built diode lasers are used to produce the optical fields that later interact with room temperature rubidium atoms. Using counterpropagating beams allows velocity selection of the groups of atoms that interact with both laser beams.\nBlue fluorescence nm that results from decay of the intermediate 6P j states is filtered and then measured with a photomultiplier tube. Absorption and fluorescence spectra provide mutually complementary information about the interaction between the rubidium atoms and the two optical fields.. High-resolution laser spectroscopy free of Doppler broadening has made substantial progress through the study of the interaction between two optical fields and an atomic medium, such as an alkali metal vapor.\nThe combination of precisely controlled experiments and the development of theoretical models is a key factor in the advance of high-resolution laser spectroscopy.\nThe agreement between experiment and theory is quite satisfactory under many experimental circumstances Harris et al. For the purposes of this article, one can broadly classify the experiments that use atomic transitions induced by two photons in two groups. There are changes in both absorption and polarization of a probe light beam as it passes through an atomic medium interacting with optical fields.\nIn the second group of experiments, the light produces excited states in the atoms that can be detected, for instance, by looking at the atomic fluorescence. In these experiments one measures the atomic population in the excited states. This paper is structured as follows. In Section 3 we present the experimental setup. Details about the construction of our diode lasers and the fluorescence detection system are also given.\nExamples of experimental spectra obtained with this setup are shown in Section 4. Finally, conclusions are presented in Section To understand the different spectroscopy experiments that are performed in our setup we present an energy level diagram of atomic rubidium in Figure 1. The values of the total angular momenta F and hyperfine structure splittings shown here pertain to 85 Rb, and a similar diagram can be obtained for 87 Rb. After this two-step excitation the atoms in the 5 D j state decay back to the ground state. Detection of the excitation process can be made by measuring changes in the absorption or rotation of the linear polarization of one of the laser beams Flores-Mijangos et al.\nTherefore, the total angular momentum F of the initial step in our excitation ladder is well defined. If the frequency of one of the two lasers is fixed, then by scanning the frequency of the second laser one can perform velocity selective Flores-Mijangos et al. In our system we use balanced detection to measure the absorption and polarization of the nm beam used in the first step of the excitation.\nWe add a photomultiplier tube to the system in order to detect emission of nm photons.\n15: Lasers, Laser Spectroscopy, and Photochemistry\nThese measurements of absorption, polarization and fluorescence are made as functions of the frequency of one of the two lasers, with the frequency of the other laser fixed. In one type of experiment the absorption of the nm laser is measured as its frequency is scanned. One then observes the effect of the passively locked nm light component on top of a broad Doppler absorption well. In this configuration one obtains an electromagnetically induced transparency signal Gea-Banacloche et al. In a second type of experiment, polarization spectroscopy Harris et al. For these two cases detection of the nm fluorescence emission takes place only when the frequency of the lasers resonantly excites the 5 D j state for atoms with a specific velocity, and it appears on top of a flat background.\nThe experimental system that was constructed is depicted schematically in Figure 2. Two external cavity diode lasers ECDL are used to produce the two-photon transition in an atomic rubidium cell kept at room temperature. The spectrometer is shown in the right hand side box, denoted as B , of Figure 2.\nThe nm probe beam is linearly polarized, and its polarization direction is controlled with a half waveplate. The nm beam is circularly polarized with a quarter wave plate, and both beams counterpropagate along a commercial rubidium cell Tryad Technology mounted inside an ambient light isolation and magnetic field shielding setup. A photomultiplier tube with a filter and lens assembly see below is used to detect the fluorescence light. A microscope slide at near normal incidence is used to send part of the probe beam into the balanced detection array after it has crossed through the Rb cell.\nThis setup can therefore register simultaneously both the blue fluorescence detected by the photomultiplier tube and the variations induced in the absorption and direction of polarization of the nm laser component as a result of the interaction of both beams with the atomic medium. Also, a portion of the nm laser is sent to a polarization spectrometer Harris et al. This spectrometer can be used to monitor the frequency of the nm laser when it is scanning, but it can also be used to lock the frequency of this laser when the other laser is scanned.\nBoth diode lasers are based on the Littrow-mount design of Arnold, Wilson, and Boshier The collimating tube is fixed to a modified mirror mount Newport UP in order to provide mechanical stability for the diode.","domain":"optical_engineering"}
{"url":"https://redhawkrifles.com/used-zeiss-victory-rf-range-finding-binoculars/","date":"2021-05-13T12:01:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989916.34/warc/CC-MAIN-20210513111525-20210513141525-00169.warc.gz","language_score":0.8156555891036987,"token_count":1107,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__199564705","lang":"en","text":"The Victory Rangefinder System is a laser rangefinder with an integrated real-time ballistics computer. The consideration of all relevant factors and customization with the aid of the ZEISS Hunting App ensure precisely placed shots at any distance.\nThe new models of Victory RF 10x42\nare primarily made for daylight applications and Victory RF 10x54\nare suitable for twilight situations.\nFeatures and Highlights\n- Bright, High- Resolution Images: Maximum optical performance thanks to Abbe-Köenig prisms, FL glass, ZEISS T*coating and LotuTec® Hydrophobic coating.\n- Range Faster and Further: Maximum optical performance thanks to Abbe-Köenig prisms, FL glass, ZEISS T*coating and LotuTec® Hydrophobic coating.\n- Ballistic Information System II: Store up to nine custom ballistic profiles. On-board sensors provide exact results for distance, temperature, air pressure and angle.\n- Automatic LED Brightness Adjustment: The Victory® RF features 11 brightness curves, which adapt automatically to the exterior light conditions. Use the standard setting, or increase/decrease the brightness of the internal LED display based on your preference.\n- Compact Design, Better Ergonomics: Store up to nine custom ballistic profiles. On-board sensors provide exact results for distance, temperature, air pressure and angle\nFROM INTUITION TO CERTAINTY\n- Automatic LED Brightness Adjustment\n- The Victory® RF features 11 brightness curves, which adapt automatically to the exterior light conditions. Use the standard setting, or increase/decrease the brightness of the internal LED display based on your preference.\n- Compact Design, Better Ergonomics\n- Carry with comfort: only 32 oz (42 mm) / 39 oz (54 mm). No humps or indentions. Large buttons, located right where you need them, with R/L switchable functionality. Focus wheel, close to the index finger, allows you to focus with ease – even with gloved hands.\nCOME CLOSER TO YOUR TARGET\nWith an array of innovative features and unmatched optical performance, the Victory® RF with Bluetooth™ technology presents the new benchmark in optoelectronic and connected rangefinding binocular technology.\n- Bluetooth connectivity\n- Range 16 to 2,500 yards\n- Custom ballistics input via smartphone or tablet\n- B.I.S. II – On-board ballistic calculator with integrated sensors\nand ballistic profiles\n- Measures angle, temperature and air pressure\n- Calculates equivalent horizontal distance - Displays holdover in inches/cm, MOA, MIL and clicks\n- Features Scan and Target modes\n- Automatic LED brightness adjustment (11 brightness curves)\n- User-programmable control buttons and display\n- One-touch ranging (right or left hand)\n- Syncs personal settings and ballistic profiles to and from the RF\n- Superior image quality, enhanced by FL glass, ZEISS T*and LotuTec® coatings\n- Compact, lightweight and user-friendly ergonomics\n- Large focusing wheel for minimal rotation\n- High-grade magnesium frame\n|Model ||8x42 ||10x42 ||8x54 ||10x54 |\n|Magnification ||8 × ||10 x ||8 × ||10 × |\n|Effective Lens Diameter ||42mm ||42mm ||54mm ||54mm |\n|Exit Pupil Diameter ||5.3 mm ||4.2mm || 6.8 mm ||5.4mm |\n|Twilight Factor ||18.3 ||20.5 || 20.8 ||23.2 |\n|Field of View at 1,000 yds ||443 ft ||345 ft ||394 ft ||330 ft |\n|Angular Field of View, Apparent || 61° wide angle ||66° wide angle || 54° wide angle ||63° wide angle |\n|Close Focus || 8.2 ft || 11.5ft |\n|Diopter Range || +/-3 dpt |\n|Eye Relief || 16 mm ||17mm ||14 mm ||14mm |\n|Interpupillary Distance || 53.5 – 76 mm |\n|Lens Type || FL |\n|Prism System || Abbe-Köenig |\n|Coating || LotuTec® / T* |\n|Fogproof || Nitrogen Purged |\n|Waterproof ||400 mbar (submerged 4 meters for 2 hours) |\n|Operating Temperature ||− 13 / + 145.4° F |\n|Length ||6.5 in ||7.7 in |\n|Width ||5.1 in || 5.6 in |\n|Weight || 32.8 oz ||32.28 oz || 38.6 oz ||39.33 oz |\n|Range ||16 – 2,500 yds |\n|Measuring Accuracy ||± 1 – 600 / ± 0.5 % > 600 yds |\n|Measuring Time ||< 0.3 Sec. |\n|Laser Wavelength ||905 nm |\n|Laser Beam Divergence ||1.6 × 0.5 nm |\n|Battery ||1 x 3V / CR2 |\n|Battery life at 68° F || > 2,500 × |","domain":"optical_engineering"}
{"url":"https://touchless-automation.ch/","date":"2022-08-08T05:21:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570765.6/warc/CC-MAIN-20220808031623-20220808061623-00152.warc.gz","language_score":0.842218816280365,"token_count":144,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__120913092","lang":"en","text":"Touchless Automation produces innovative industrial equipment that can manipulate parts of any material, without touching them.\nThese equipment are designed for the manipulation, assembly and inspection of optoelectronic, MEMS and micro-optical components.\nTouchless Automation peak product, Levio, is a fully automatic die sorter which can pick up components from a wide range of adhesive tapes. The automatic inspection system can then analyse the component and place it into different carriers and trays.\nBut Touchless Automation is not just about contactless manipulation.\nThe company expertise embrace automatic systems, micro-assembly modules, engineering capabilities, design of mechanical complex systems, machine vision and more.","domain":"optical_engineering"}
{"url":"http://ewin4470wflblog.canariblogs.com/2-things-you-do-definitely-not-comprehend-relating-to-lasik-eye-surgical-operations-5834237","date":"2018-11-14T05:27:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741628.8/warc/CC-MAIN-20181114041344-20181114063344-00390.warc.gz","language_score":0.9581648707389832,"token_count":884,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__193948628","lang":"en","text":"2 Things You Do Definitely Not Comprehend Relating To LASIK Eye Surgical OperationsThe eye can be taken a look at with relative ease as to both its function and its structure. A practical assessment includes the capability to move in the orbit and the reaction of the student to light and lodging.\nThe function of the eye might be evaluated in several methods. The patient may be asked to determine illuminated letter or things of differing sizes on what is known as the Snellen chart.\nConversely, the examination of the structural part of the eye may be made in several ways. Tension within the eyeball is determined by a \"tonometer.\" In certain illness, especially in glaucoma, the stress in the eyeball is increased considerably.\nIt needs to be well kept in mind that a patient with an eye issue might have other issues. Often other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can alert the physician and the patient to troubles in some disturbances of other parts of the body even before other signs provide themselves.\nOne's reliance on sight is emphasized when one deals with a possible or momentary long-term loss of this essential sense. Thus, when corrective procedures are sought, particular forms of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another form of vision correction. The only difference is that with this kind of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe main function of this surgical treatment is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to understand. Most likely, the primary reason that this type of eye surgery has become well accepted is since the majority of its cases had been you can try here successful.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is among the most sensitive portions of the eye, many individuals state that the operation can be very risky.\nTo puts it simply, a basic mistake could almost cause an person's life time blindness. Thus, it is essential to consider many factors prior to choosing whether LASIK eye surgery is the best restorative measure one needs to go through.\n2. It is not a perfect treatment\nLASIK eye surgical treatment may correct your vision but it does not always mean that it can provide you a best vision. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not necessarily indicate they have perfect vision as well.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not always be the ideal eye surgery the way most individuals see it\nAlternatively, the assessment of the structural part of the eye might be made in a number of methods. It must be well kept in mind that a client with an eye problem might have other issues. Frequently other physical conditions are primary and affect the eye as a effect. The appearance of the eye can inform the patient and the physician to problems in some disruptions of other parts of the body even prior to other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://camera.superb-japan.com/contax-carl-zeiss-vario-sonnar-80-200mm-f4-mmj-extension-tube-shooting-tested-a1391/","date":"2023-11-28T10:06:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00375.warc.gz","language_score":0.6957331299781799,"token_count":284,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__16661132","lang":"en","text":"You save: $8.49\nUsually ships within 3 business days\nThe lens works properly.\nShooting tested with film developing (Please see test photos)\nProduct Line – ZEISS Vario-Sonnar T*\nConstructed with 13 elements in 10 groups, the Zeiss Sonnar T MM lens renders superior images with impeccable clarity and detail. This Zeiss lens is a one touch zoom lens, which offers 80 mm – 200 mm focal length, keeping the image quality the same throughout. F/4.0 being the maximum aperture, this camera lens ensures optimum light transmission for perfectly-lit images. With 30 degree -12 degree angular field of view, this Zeiss lens lets you capture landscape images on a wider angle. With 55 mm filters, this camera lens remains protected from dust, moisture and scratches. Club your camera with the Zeiss Sonnar T MM and capture some incredible pictures.\n|Condition detail table|\n|Brand New||New,never used,new in original box|\n|MINT||No signs of use|\n|Near MINT||Almost no signs of use|\n|Excellent+||Cosmetically may show slight wear and / or signs of use.|\n|Excellent||Show signs of moderate use|\n|Good||Heavy marked but works ok|\n|Well Used||Restoration required, parts may be broken or missing|","domain":"optical_engineering"}
{"url":"https://www.sggoman.com/product/hilook-thc-t140/","date":"2024-03-04T11:19:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476442.30/warc/CC-MAIN-20240304101406-20240304131406-00124.warc.gz","language_score":0.8443310856819153,"token_count":430,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__178892870","lang":"en","text":"4-in-1 CCTV is a new hybrid format, allowing the camera to be switched between HD-TVI, AHD, HD-CVI and CVBS. This means you no longer have to worry about format compatibility between cameras when setting up or updating a CCTV security system- as long as it has a BNC connection and uses coaxial cable then it should work. Hikvision 4-In-1 Cameras supports Multiple HD Video formats enabling reliable long distance analogue HD transmission over coaxial cable (RG59), without the need to upgrade to IP or even needing to replace your existing cabling.\n- HD-TVI: HikvisionTurbo HD\n- AHD: Analogue HD\n- HD-CVI: Composite Video Interface\n- CVBS: Analogue TV Lines format using BNC\nThis HiLook THC-T140-M camera is a 4 in 1 camera offering 4MP 2560 × 1440 resolution in a smart design. Retaining the ease of use of analogue cameras whilst offering HD video output, the cameras does not suffer from latency that is sometimes seen in IP cameras. The camera comes in an attractive Turret Dome design with IP66 protection and offers EXIR technology for night vision\nThis model also incorporates Hikvision’s EXIR infrared array technology to provide industry-leading illumination in any low- or zero-light environment. Benefiting from an advanced, highly efficient light source that provides up to 30% more illumination efficiency compared to other LEDs and a revolutionary rectangular lens for uniform scene illumination and seamless HD formatting, Hikvision’s EXIR cameras deliver the most advanced levels of night-time surveillance available on the market today.\n- 4 Megapixel high-performance CMOS\n- Analog HD output, 2560 × 1440 resolution\n- Day / Night switch\n- Smart EXIR 2.0 up to 20m IR distance\n- Digital Noise Reduction (DNR)\n- 4-in-1 Switchable TVI / AHD / CVI / CVBS\n- IP66 weatherproof\n- Compatible with Hikvision Turbo HD DVR’s","domain":"optical_engineering"}
{"url":"http://www.fasterandfaster.net/2009/10/darren-haley-builds-night-vision-system.html","date":"2017-02-28T05:48:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501174135.70/warc/CC-MAIN-20170219104614-00286-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.943719208240509,"token_count":362,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__110011735","lang":"en","text":"In the dark, Darren Hayley's night vision system improves visibility beyond what a conventional headlamp can provide\nBack in June this year, we had speculated that the 2010 Kawasaki 1400GTR might get ‘night vision’ technology, which is already being fitted to some high-end cars. Now while that hasn’t happened, 34-year-old Darren Haley – who works at Flir, a leader in thermal imaging technology – has prepared his own ‘night vision’ system for his BMW R1150GS.\nHaley’s system consists of an infrared camera mounted above the bike’s right turn indicator (see pic above), which feeds its video stream on to the on-board GPS unit’s screen. In the dark, the camera picks up objects that can’t be seen with the naked eye and which the bike’s headlamp fails to reveal. ‘I use it like I would a rear-view or side-view mirror. The display allows you to see the lines of the road without having to look at oncoming cars’ headlights,’ says Haley. Indeed, used judiciously, the infrared camera-based night vision system might be an invaluable safety feature on bikes.\nThe camera used on Haley’s system is shockproof and weatherproof, though the GPS unit’s display has to be protected from bad weather. Still, that can’t be an insurmountable challenge and Haley continues to develop and refine the system. He thinks a mainstream manufacturer could produce this system and sell it for less than $2,000. We think it’s a brilliant idea and we hope some motorcycle manufacturer likes it, picks it up and develops it further.","domain":"optical_engineering"}
{"url":"http://www.erikandtheanimals.com/silverticket/SilverTicket_reflector.html","date":"2013-12-07T00:58:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-48/segments/1386163052912/warc/CC-MAIN-20131204131732-00019-ip-10-33-133-15.ec2.internal.warc.gz","language_score":0.8911086320877075,"token_count":295,"dump":"CC-MAIN-2013-48","global_id":"webtext-fineweb__CC-MAIN-2013-48__0__17023877","lang":"en","text":"Silver has a special relationship with light and has the highest reflectivity\nof all metals. Applications as a reflective coating is one of the industrial\nuses that contributes to silvers intrinsic material values.\nAccording to the Silver\nSilver’s unique optical reflectivity, and its property of being\nvirtually 100% reflective after polishing, allows it to be used both\nin mirrors and in coatings for glass, cellophane or metals.\nEveryone is accustomed to silvered mirrors. What is new is invisible\nsilver, a transparent coating of silver on double pane thermal windows.\nThis coating not only rejects the hot summer sun, but also reflects\ninward internal house heat. A new double layer of silver on glass\nmarketed as \"low E squared\" is sweeping the window market\nas it reflects away almost 95% of the hot rays of the sun, creating\na new level of household energy savings. Over 250 million square feet\nof silver- coated glass is used for domestic windows in the U.S. yearly\nand much more for silver coated polyester sheet for retrofitting windows.\nOne out of every seven pairs of prescription eyeglasses sold in the\nU.S. incorporates silver. Silver halide crystals, melted into glass\ncan change the light transmission from 96% to 22% in less than 60\nseconds and block at least 97% of the sun's ultraviolet rays. The\nchange is endlessly reversible.","domain":"optical_engineering"}
{"url":"https://fastestfibre.co.za/fibre-internet-questions/","date":"2024-04-13T19:44:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00527.warc.gz","language_score":0.9292342066764832,"token_count":275,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__22354252","lang":"en","text":"FAQs About Fibre Internet\nHere’s a list of the commonly asked questions about fibre internet\nFibre optic cables consist of thin strands of glass or plastic known as optical fibres. A single cable contains several hundred strands.\nA strand less than a tenth the thickness of a human hair can transmit about 25,000 phone calls, and an entire fiber optic cable can transmit several million calls at once.\nThere are two main types of systems that enable fibre broadband connections to the home. Active optical systems use switching devices such as routers to manage signal distribution and direct signals to specific customers. Switches can be opened and closed in various ways to direct incoming and outgoing signals to the right place.\nWhile fibre is made of glass, fibre optic cables are stronger than steel and more resilient than copper. Fibre cables work even in the toughest environmental conditions, including lightning strikes because it has no electrical conductivity. This is because the metal components of the insulation have such high values that a lightning current can’t easily penetrate the cable\nInformation moves at the speed of light – an inconceivably fast 299,792,458 meters per second). This means that you can move a lot of data very quickly. As a result, streaming HD video has less latency (delay in transmitting data) because the data is buffered (downloaded in advance).","domain":"optical_engineering"}
{"url":"https://www.actiongearaustralia.com/products/phantom-4-lens-cover-filter-compatible","date":"2017-08-20T05:55:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886105976.13/warc/CC-MAIN-20170820053541-20170820073541-00240.warc.gz","language_score":0.8573859930038452,"token_count":222,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__200134809","lang":"en","text":"Phantom 4 Lens Cover (filter compatible)\n- Engineered specifically for the DJI Phantom 4\n- Simple push-on design for easy one handed installation\n- Compatible with thread-on PolarPro filters & stock UV filter\n- Durable glass filled nylon with a smooth soft touch finish\n- Limited lifetime warranty\nThe PolarPro DJI Phantom 4 Lens Cover and Gimbal Lock provides an easy to install solution to protect your camera's lens and gimbal. The lens cover simply pushes onto the gimbal and camera to provide protection while traveling. Designed specifically for use with PolarPro Phantom 4 filters, the lens cover will work with the filters installed. It is also compatible with the stock UV filter on your Phantom 4. Constructed out of glass filled nylon the P4 Lens cover is extremely durable with a smooth soft touch finish, and our lifetime warranty ensures it will last.\nAirframe™ Construction- PolarPro’s filter design specifically designed for aerial filming. The ultra-light construction utilizes a precision threaded aircraft aluminum frame for smooth gimbal operation.\nWe Also Recommend","domain":"optical_engineering"}
{"url":"https://www.bowadvisor.com/the-5-best-spotting-scopes-for-target-shooting-in-2019-the-definitive-guide-in-depth-reviews/","date":"2020-04-02T20:04:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370507738.45/warc/CC-MAIN-20200402173940-20200402203940-00175.warc.gz","language_score":0.9372634291648865,"token_count":1314,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__137907028","lang":"en","text":"Important Choosing Factors\nYou’ll need to think about a lot of different factors when selecting a target-spotting scope. Some of the most important considerations include those listed below.\nSpotting scopes will typically come in one of two eyepiece configurations, angled or straight. This refers to the portion of the spotting scope you’re looking through.\nThe pieces come in both angled and straight. In general, this is a personal choice that individual shooters will have to look over and decide for themselves.\nIf you are completely in the dark regarding the differences between angled and straight I will gladly provide you with my opinions regarding the two.\nStraight eyepieces are great for fast target acquisition and easier to accurately move between targets. Straight eyepieces work better for spotting downhill and is my opinion easier when using a bench rest to shoot.\nAngled eyepiece spotting scopes can utilize smaller tripods, and smaller is lighter. They are also easier to use when spotting uphill too. People with neck issues may find spotting with an angled scope a little easier.\nMagnification and Range\nThe goal of a target shooting spotting scope is to see very tiny holes in target very far away. This will somewhat limit your range compared to hunting.\nIf you are shooting distances of 100 yards or less, you don’t need any insane level of magnification. In fact, too much magnification is detrimental because every small movement made will shake and quake your scope’s view.\n– 20x and under is solid magnification range for up to 100 yards.\n– At 100 to 200 yards you need to step it up to 36x and higher, and you’ll need a high-quality scope to utilize that level of magnification. This means paying the price for premium optics.\n– Up to 300 yards and you are going to need the highest quality optics out there, with a magnification range that can hit at least 60x.\n– At 400 yards the magnification range won’t really grow, what grows is the necessary quality of the optic. You’ll also need a massive objective lens.\nEven then you’ll need to have a nice bright day to really see bullet holes in the target.\n– Beyond 400 yards and you are unlikely to find a spotting scope with enough range and clarity to see bullet holes without specialized splatter targets.\nAt this range, you are using a spotting scope to spot atmospheric and environmental variances like wind, heat variances, and dispersion.\nVariable Magnification or Fixed?\nVariable magnification offers you the ability to swap between magnification ranges. It’s typically represented by a set of numbers like 20 to 60x.\nThis means the lowest magnification range is 20-power, and the highest being 60-power. The advantages of variable magnifications are of course versatility.\nYou can use them at multiple ranges making them perfect for shooters involved in competitions like NRA High Power.\nFixed magnification spotting scopes are locked at one range. The main benefit is a cheaper overall spotting scope that’s often smaller and more durable.\nFixed magnification spotting scopes are much better suited for shooters trying to hit targets at one specific range.\nField of View\nField of view, or FOV, is a measurement of the observable world when looking through the scope. This measurement is derived from a particular range, often 100 or 1000 yards.\nWhen it comes to target shooting Field of View isn’t exceptionally important. It’s unlikely you will need to scan or track moving targets when it comes to target shooting.\nObjective lens size is a very important consideration when it comes to a target shooting spotting scope. Because you are trying to see very small holes you need the clearest picture possible.\nA larger objective lens usually leads to a much clearer picture, as long as the glass is high quality. The objective lens in a spotting scopes description comes after the magnification rating.\nFor example, it will look something like this 20-60×82. The 82 is the measurement of the objective lens in millimeters.\nThe larger the objective lens the more expensive the optic will be. Larger objective lenses mean the spotting scope is heavier and larger, but this isn’t a major concern for target shooters who are mostly stationary.\nI’ve never blown glass, or manufactured optics so it’s hard to speak for experience regarding the techniques, and even the materials and machines needed to manufacture high-quality glass.\nI do know scopes, and I do know the terms used to describe quality glass.\n- Look for the Following terms\n- HD or High-Density Glass\n- ED or Extra Low Dispersion\n- APO or Anomalous Partial Dispersion.\nWhen it comes to prisms you’ll need to understand two terms. In the spotting scope world, you need to pay attention to the terms BAK 5 and BK-7 prism. Without a prism, your image would appear upside down.\nA prism turns the image the right way, and anything that involves the image affects its clarity.\nBoth BAK and BK-7 prisms provide clear images, but the BAK 5 prism provides the clearest picture and is a necessity in scopes being used to spot targets over 200 yards.\nBAK 5 prisms will drive up the cost of the spotting scope but are well worth it.\nEye relief with a target shooting optic is more important than people think. I don’t of any range in the country that doesn’t require you wear safety glasses while shooting.\nYou’ll need enough eye relief to be able to keep wearing your glasses and look through the scope. This typically translates to about 15mm at the very least.\nAnything less and you’ll be hugging the scope and constantly removing your glasses.\nThe satisfaction of hitting a target at hundreds of years is hard to replicate. It feels amazing to see when your round hits that sweet spot in the target. The problem is being able to see where you hit.\nWithout a spotting scope, it’s almost impossible past 100 yards. I mean you are trying to see a hole that at most is .5 inches in diameter. Without a good spotting scope, you aren’t seeing anything.\nAlways invest in quality, and use our guide above when you need help.","domain":"optical_engineering"}
{"url":"https://scimar.icm.csic.es/index.php/secId/9/IdArt/344/search/%22A.%22/total_trob/653/iniyear/1955/finyear/2022/author/1/abstract/0/title/0/keywords/0","date":"2023-10-01T16:24:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510903.85/warc/CC-MAIN-20231001141548-20231001171548-00721.warc.gz","language_score":0.8640274405479431,"token_count":261,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__190555912","lang":"en","text":"A continuous culture system for the study of UV-B effects on microalgae\nA laboratory culture system has been developed for the investigation of UV-B effects on microalgae. Flat geometry characterizes the system and allows accurate dosimetry. Natural sinusoid light regimes can be simulated by computer- controlled Venetian blinds. Photosynthetically available radiation is provided by a high-intensity light source. A method, based on Monte Carlo analysis, is presented for the calculation of scalar irradiance inside the culture. To select experimental irradiance levels, a model is described for the calculation of UV-B irradiance as a function of time, latitude and atmospheric conditions. Extraterrestrial irradiance data (280-350 nm) are incorporated at a spectral resolution of 1 nm. The model shows acceptable agreement with measurements in the Atlantic.\nKeywords: Continuous culture system, microalgae, radiation model, Monte Carlo analysis, UV-B radiation, solar light simulation.\nSci. Mar. 60(Suppl.1) : 89-93\nPlease, send comments to\nICM (CSIC) - Passeig Marítim de la Barceloneta, 37-49. E-08003 Barcelona (Spain)","domain":"optical_engineering"}
{"url":"http://akkinlab.umn.edu/","date":"2020-12-05T05:01:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141746320.91/warc/CC-MAIN-20201205044004-20201205074004-00663.warc.gz","language_score":0.8874800205230713,"token_count":299,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__50345847","lang":"en","text":"Where are we?\nWhat do we do?\nWe develop and use non-contact, non-invasive optical imaging tools to study structural and functional disorders in biological tissue with high spatiotemporal resolution.\nUsing phase- and polarization-sensitive interferometric techniques, we image tissue microstructure in real-time with a few micron spatial resolution and function with sub-nanometer scale optical path length resolution.\nFunctional recovery may be possible only when the tissue structure is intact; therefore, detecting structural changes (function) during physiological activity prior to any structural loss or permanent damage is the main thrust of our work.\nNon-invasive or minimally invasive applications in medicine are possible, since the techniques use back-scattered light.\nOur contributions to the field include (i) Brain imaging and mapping with serial optical coherence scanner, (ii) Depth-resolved optical imaging of neural action potentials, (iii) Integrating polarization-maintaining fiber technology into optical coherence tomography, and (iv) Differential phase sensors for ultrasensitive detection. For further information, please see the Research and Publications sections.\nStructural & Functional Neuroimaging\nStarting from summer 2020, the assistantship will provide support for Tianqi for 12 months. Congratulations to her!\nChao Liu has successfully defended his Ph.D. dissertation. Congratulations Dr. Liu!\nPeter Howell completed his master's thesis succesfully. Congratulations to Peter!","domain":"optical_engineering"}
{"url":"https://advogids.com/tag/automotive-function","date":"2024-04-21T14:23:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817780.88/warc/CC-MAIN-20240421132819-20240421162819-00568.warc.gz","language_score":0.9527482390403748,"token_count":284,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__43477836","lang":"en","text":"The automotive vision system is regarded to be around the cutting edge of automobile security. More than the previous numerous years, the growth of in-car cameras has exploded from only a few thousand to millions. The main driving force behind this development is a concern for generating safer driving knowledge. At present, you’ll find a variety of diverse selections obtainable, which serve several distinct purposes.\nA front view automobile vision system is mainly made so that the driver can possess a wider and much more detailed view of the road ahead. You’ll find presently two main possibilities for camera placement. The extra classic option is to spot the camera out within the open on top rated on the dashboard within the front seat. A newer selection is location a tiny digital camera next to or underneath the license plate. This not just makes it practically invisible to a passerby, but can also offer a larger degree of detail because the camera is closer to the road. Many people take into consideration this to be an additional productive option due to the fact it provides the driver using a distinct view of the road.\nOne more common use of an automotive vision system would be to aid the driver see behind them and in their blind spots. In most situations, these systems are placed close to the rear license plate or the trunk. This supplies a wider range of views, plus the capability to view exactly what exactly is behind the … READ MORE >>>","domain":"optical_engineering"}
{"url":"https://skysportsf.com/uzi-periscope-5x-magnification-and-adjustable-height-of-uzi-periscope/","date":"2023-06-06T13:07:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652569.73/warc/CC-MAIN-20230606114156-20230606144156-00558.warc.gz","language_score":0.951789915561676,"token_count":873,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__72916295","lang":"en","text":"Purchasing a UZI periscope is a good choice when you are looking for a high-quality product that is versatile. You can use it for surveillance over fences, corners, and inside drop ceilings. This model is weatherproof and comes with a nylon carrying case. You can also adjust the height and magnification.\nUsing an Adjustable Height of Uzi Periscope allows you to view objects from a much higher position than most other periscopes. This can be beneficial in observation posts. It also allows you to see things around you without sticking your head out, making it an excellent tool for surveillance.\nThe Adjustable Height of Uzi Periscope is manufactured using durable, weatherproof aluminum. It is lightweight and comes with a carrying case and lens cleaning cloth. It also features a 5x magnification and a wide diopter range. It also has a height adjustment range from 17 to 27 inches. The periscope comes with a focusing eyepiece and a rubber cup for eyeglasses. It is suitable for both farsighted and nearsighted individuals. It also comes with a 90-day limited warranty.\nHaving 5x magnification in a periscope is no small feat, and the UZI-PERISCOPE is no exception. It’s a durable, adjustable periscope that features highly polished glass lenses and prisms and is suitable for the farsighted. The eyecups fold back to accommodate glasses, and the device is lightweight and weatherproof. Its 5-in-1 design is also an excellent feature for a tactical entry team, law enforcement, or security personnel.\nThe UZI-PERISCOPE also features a focusing eyepiece and a height extension system. This device is 17 inches long and weighs only 12.7 ounces. Its black aluminum construction is also weatherproof. It also comes with a black carrying case, and a lens cleaning cloth. The best part? It also comes with a 90-day limited warranty! Its weatherproof construction, extensive diopter range, and 5x magnification are all features that are sure to help you get the job done.\nWhether you’re shopping for your next gift or are simply looking for something to improve your life, you can’t go wrong with a UZI periscope. This periscope features a number of great features, including a height extension system, a 5x magnification, a focusing eyepiece, and highly polished glass lenses. In addition, this periscope also comes with a handy carrying case. This periscope is sure to provide years of enjoyment.\nIn addition to the 5x magnification, this periscope is also weatherproof. It is made from durable black aluminum and features a height extension system. It is also lightweight, at just over 12.7 ounces. It also features a black nylon carrying case. The carrying case also includes a lens cleaning cloth. It also has a number of other features, including a focusing eyepiece and a lens-cleaning device.\nFrequently asked questions\nFrequently asked questions about UZI Periscope include if it is a good product for tactical applications if it has a dioptric correction, and how to use it. Although there are a few minor problems, the UZI Periscope is a useful tool for many tactical applications. It is made of lightweight aluminum alloy and has a durable black finish. It features a 5x magnification and a high-quality focus. It is also weatherproof and has a rubber eyecup to protect the eye.\nThe UZI Periscope is a telescopic device that is capable of viewing objects from five to twenty feet away. It comes with a height extension system, adjustable magnification, and a focusing eyepiece. The device is made of lightweight aluminum alloy and is waterproof. It comes with a carrying case and a lens cleaning cloth. It weighs about 12.7 ounces and measures 17 inches by three inches by two inches.\nWavlink Extender Setup Tips to Boost WiFi Signals\nJealous Friends: Signs and How to Handle Them\nUpgrading Your Home’s Exterior: How to Choose the Right Eavestrough Style","domain":"optical_engineering"}
{"url":"https://overhalfsale.com/products/unisex-uv400-polarized-fit-over-sunglasses","date":"2021-01-28T02:44:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704835583.91/warc/CC-MAIN-20210128005448-20210128035448-00312.warc.gz","language_score":0.7787275910377502,"token_count":226,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__236486046","lang":"en","text":"Unisex UV400 Polarized Fit Over Sunglasses\nAre you tired of having to choose between having clear vision or protecting your eyes from the glaring sun? These Unisex UV400 Polarized Fit Over Sunglasses will solve that problem!\n- Frame Material: Polycarbonate\n- Lens: Polarized\n- Features: Anti-UVA anti-UVB Polarized Lens\n- Use: Riding, Driving, Fishing, Golf, Travelling and Sports\n- 100% UVA, UVB, UVC harmful rays\n- Polarized Lenses Anti UV 400 Polarized Lens\n- Observation Mirrors prevent eyes from reflection glare.\n- Polarized Yellow lenses the yellow lens can reduce glare, add contrast to your vision and increase visual clarity when you drive at night, dusk or rainy day.\n- Night vision glasses will balance the polarized and vision,which can cut the glare from headlight and increase brightness.\n- One (1) Unisex UV400 Polarized Fit Over Sunglasses\n- Cleaning Cloth\n- Polarized Lens Testing Card\n- Soft Glasses Pouch","domain":"optical_engineering"}
{"url":"http://allstaraz.com/?product=i-s-led-08-effect-led-laser-light","date":"2018-12-12T23:45:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824180.12/warc/CC-MAIN-20181212225044-20181213010544-00047.warc.gz","language_score":0.7797207236289978,"token_count":323,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__122359088","lang":"en","text":"red and green double laser 8 patterns with RGB LED background. Both patterns of the two tunnels are full of color change with effects like rotating, strobe, etc with scattered angle more than 70 degrees.With strobe function and stand alone- or music controlled operation. In short, a spectacular room-filling effect.\nApplication: It is available for small to medium live concerts, TV studios, road shows, mobile DJ, clubs.\n|Laser Power||150mW*2 650nm Wave Length Red Laser 60mW 532nm Wave Length Green Laser|\n|Power supply||AC100-240V, 50-60Hz|\n|Play Mode||Sound Active, AUTO, DMX512, and Master/Slave Sound Active|\n|Scaner||Highly precision stepping motor|\n|Interface||3 pins XLR jack for DMX or Maser-Slave linking|\n|Features||red and green double laser 8 patterns with RGB LED background. Both patterns of the two tunnels are full of color change with effects like rotating, strobe, etc with scattered angle more than 70 degrees.\nEight kinds of design random switching, each kind of design can spread out a lot of the same pattern, the light scattering angle is greater than 120 degrees, the effect change variety, with rotating, strobing, color changing etc.\nThe advanced algorithm and program design, namely DMX512 signal control, and work separately or master/slave work synchronously, sound active can shut off the laser automatically without music.\n|Cooling System||Fan cool|","domain":"optical_engineering"}
{"url":"https://inl.int/bruno-romeira-distinguished-as-senior-member-of-optica-2022-class/","date":"2024-04-18T04:00:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817187.10/warc/CC-MAIN-20240418030928-20240418060928-00571.warc.gz","language_score":0.9353430271148682,"token_count":383,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__80779086","lang":"en","text":"Optica, Advancing Optics and Photonics Worldwide, announced this week the Senior Member class of 2022. A total of 170 Optica members have received the distinction of Senior Member, which recognizes their experience and professional accomplishment within the field of optics and photonics.\nBruno Romeira, Staff Researcher at the Ultrafast Bio- and Nanophotonics group and coordinator of the H2020-FET-OPEN project “ChipAI” was distinguished as a Senior Member of the 2022 class of Optica. His research cuts across several disciplines in applied physics and engineering, which include semiconductor physics, low-dimensional nanostructures and nanophotonic and neuromorphic devices.\n“On behalf of the Board of Directors, I extend my congratulations to the new class of Optica Senior Members. These individuals have distinguished themselves through their exemplary professional accomplishments and service to Optica and the optics and photonics community,” said Optica President, Satoshi Kawata.\nThe 2022 class joins a distinguished group of scientists, engineers, entrepreneurs and innovators who have demonstrated exemplary professional accomplishments in optics and photonics. To qualify for Optica Senior Membership, individuals must have at least 10 years of significant professional experience in the field, five years of active Optica membership and two endorsement statements from current Optica members.\nOptica (formerly OSA), Advancing Optics and Photonics Worldwide, is the society dedicated to promoting the generation, application, archiving and dissemination of knowledge in the field. Founded in 1916, it is the leading organization for scientists, engineers, business professionals, students and others interested in the science of light. Optica’s renowned publications, meetings, online resources and in-person activities fuel discoveries, shape real-life applications and accelerate scientific, technical and educational achievement. Discover more at: Optica.org","domain":"optical_engineering"}
{"url":"https://www.anawa.ch/buy/cat-micro-spectrophotometers-4855.html","date":"2023-01-28T00:06:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499468.22/warc/CC-MAIN-20230127231443-20230128021443-00458.warc.gz","language_score":0.7911340594291687,"token_count":411,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__283060384","lang":"en","text":"NeoDot UV/Vis Nano Spectrophotometer is a miniature spectrophotometer that can measure cuvette and microvolume samples.\nUsing spectrometer technology, it can accurately and conveniently measure and analyze single wavelength as well as spectrums.\nIt is a standalone system with 7.0\" touch screen LCD, and simple data back up through USB is possible.\n- Cuvette and microvolume sample\n- Measurement of single wavelength as well as spectrum analysis using spectrometer technology\n- Simple and miniature design\n- Stand-alone system with easy-to-use 7.0\" LCD touch screen\n- Simple data backup using USB\n- Modes: DNA/RNA, protein, cells, end point, kinetic, spectrum\nVariety & Precision in detection\n- End Point & Kinetic Mode in Detection\n- High speed spectrum reading (5 seconds)\n- Wide range of detectable concentrations (2 to 10,000 ng/μl ds DNA)\n- Wide range of wavelength detection with cuvette\n- Nano volume sample measurement (Nucleic acid / Protein)\n- High repeatability in quantitative measurement for nucleic acid\nSimple & Light in design\n- Compact size and light weight\n- Easy operation with minimized steps for measurements and analysis\n- 7.0 inch touch LCD\n- Quick boot - No lamp warm-up time\n- Stand-alone - Perform all functions without PC\n- Single wavelength / Spectrum selection\n- End Point / Kinetic mode selection\n- Quantitative measurements for nucleic acid, protein ...\n- Cell concentration\n- Simple data backup and software upgrade via USB Flash drive\n- Easy to confirm the result via graphical presentation\nSearch result : 1 product found\nRefine your search :\nRUOCE / IVD\nPrice Bef. VAT","domain":"optical_engineering"}
{"url":"https://www.sglinc.com/articles/optical-lenses-for-optometrists-office-manufacturing-plastic-lenses-using-light/","date":"2024-04-14T14:48:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.72/warc/CC-MAIN-20240414130604-20240414160604-00087.warc.gz","language_score":0.910643458366394,"token_count":286,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__23662500","lang":"en","text":"Preparing a new prescription pair of glasses from the basic stock of blank lenses held by most optical laboratories is time-consuming and can be expensive for the customer. This is normally done by grinding and polishing a blank to fit the prescription. Lens pairs from typical optometrists can cost hundreds of dollars even when the patient’s prescription is simple, and more than that for patients whose eyes need more complex corrective devices. In the 3rd world, where these base stocks are not available, patients go without glasses, or use ill-fitting ones perhaps passed down by a relative or friend.\nIn collaboration with Opticast USA in a program supported by the Ohio Department of Development, Spectra scientists developed a series of energy curable optical plastic formulations and a device equipped with molds simulating nearly 90% of all required different visual corrections. With this method, liquid pre-polymer formulations are polymerized with light in the shaped mold. An optician can make a set of spectacle lenses in his/her own shop to meet the correction requirement of a patient and do so in a few minutes, even for bifocals and trifocals. In the 3rd world, one laboratory or optometrist’s organization can hold the basic set of molds, so that the only consumable is the optical lens liquid pre-polymer formulation – the Spectra Group/Opticast product.","domain":"optical_engineering"}
{"url":"https://lookscart.com/product/dubery-d918-polarized-sports-sunglasses/","date":"2023-12-09T15:57:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100912.91/warc/CC-MAIN-20231209134916-20231209164916-00485.warc.gz","language_score":0.7250596880912781,"token_count":351,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__129319148","lang":"en","text":"DUBERY D918 Polarized Sports Sunglasses\n& Free Shipping\n- 100% UV400 Protected\n- Scratch Resistant\n- Shatter Resistant\n- Anti-Reflective Inner Coating\n- TR90 Flexible Frame\n- Feather Lightweight\n- Reinforced Hinge System\n- Standard Fit One Size Fits Most\nOur Lens Are Rated ANSI Z80.3 & UV400 Protection.\nThe Right Lens For The Right Need\nThis polarized sunglasses finding the right pair of polarized UV400 lenses is the key to your comfort, polarized glasses to cater to every need.\nWhether it’s taking a relaxing hike, enjoying a casual Sunday drive, or relaxing with your friends on a beach, Polarized lenses effectively eliminate glare and reflection of sunlight, offer 100% UV protection, and provide true color perception.\nHigh color contrast and superior clarity, brings you the HD quality Polarized lenses.\nNylon Lenses Benefits\n- Unmatched Clarity\n- Optimized Glare Protection\n- 100% UV Protection\n- Lowest Internal Stress\n- Light Weight & Comfortable\n- Superior Optical Features\n- 99.9% Polarized Efficiency\n- Super Excellent Chemical Resistance\n- Highly Impact Resistance, Extremely Flexible\nFrame material: plastic\nLens material: Polycarbonate Fibre\nFrame colour: as the picture shows.\nGlass Color: as the picture shows.\nVisible perspective rate: 99%.\nUV rating: UV400.\nLens width: approx. 55 mm.\nGlass height: approx. 40 mm.\nBridge: approx. 20 mm.\nFrame width: approx. 141 mm.\nBranch width: approx. 135 mm.","domain":"optical_engineering"}
{"url":"http://www.tropomi.nl/over-tropomi/how-tropomi-works/?lang=en","date":"2018-10-18T07:12:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583511744.53/warc/CC-MAIN-20181018063902-20181018085402-00169.warc.gz","language_score":0.9249617457389832,"token_count":173,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__57245203","lang":"en","text":"Tropomi circulates in an orbit around earth at an altitude of 824 km, onboard the Sentinel-5 precursor satellite. From this position, it is perfectly capable of mapping the entire atmosphere on a daily basis, with details of 7×7 km. This high resolution makes it possible to detect air pollution down to city level.\nTropomi watches, it compares. With a few steps it detects light reflected by the atmosphere, comparing it to direct sunlight. The difference between both sources of light reveal significant information on how the atmosphere is made up.\nFrom infrared to ultraviolet, Tropomi is capable of observing many different wavelengths. Light is reflected through mirrors, it is unravelled by gratings and ultimately captured with a detector. Due to Dutch innovations like immersed grating and freeform optics, this device is a lot better compared to previous ones.","domain":"optical_engineering"}
{"url":"http://www.hardnesstesters.in/load-cell-based-vickers-hardness-tester-tht-series--8849287.html","date":"2024-04-12T21:07:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816070.70/warc/CC-MAIN-20240412194614-20240412224614-00010.warc.gz","language_score":0.8476489782333374,"token_count":252,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__110279827","lang":"en","text":"MANUAL EYEPIECE :Equipped with 10x Manual Eyepiece to measure the length of diagonal. The hardness value can be displayed directly on LCD screen by entering the indentation diagonal length.\nILLUMINATION SYSTEM :Halogen illumination unit gives very clear images and can be also used as a simple microscope. Halogen illumination unit enter stand by mode after a certain period of inactivity which gives it a long service life and low power consumption.\nLCD SCREEN :80X25mm LCD Screen can visually display the hardness value, conversion hardness, test force and dwell time.\nCAMERA PORT :Machine equipped with dual optical channel, one optical channel for 10X eyepiece and another optical channel is for camera by which machine can be upgraded into computerized model. Both optical channel works simultaneously.\nTEST FORCE :All the test force is applied by load cell. The high quality load sensing system can do a wide-range of vickers test by one load cell.\nTURRET MECHANISM :Equipped with manual turret mechanism. The position of the indentor and objective lens can be switched manually.\nEMERGENCY SWITCH :Equipped with emergency stop switch.","domain":"optical_engineering"}
{"url":"https://www.volquartsen.com/tags/25-scopes-optics-sights","date":"2015-11-26T05:04:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398446500.34/warc/CC-MAIN-20151124205406-00081-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.8925179243087769,"token_count":1040,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__127862732","lang":"en","text":"Scopes, Optics & Sights\nHi-Viz front sight for LLV, V-Comp and Volquartsen pistols. Includes additional light pipes and installation wrench.\nV-Comp and Volquartsen Pistol option replaces existing dovetail front sight on Volquartsen V-Comps. LLV/Scorpion option screws on to Volquartsen LLV and Scorpion uppers.\nThe Target Front Sight is designed to work on the Ruger MKI, MKII and MKIII Standard Model pistols. It allows the shooter to use the TL Rear Sight.\nThe Target Front Sight is wire EDM-cut and measures .608\" tall. Minor fitting may be required (roll pin included). Installation service available.\nAvailable by itself or as a set with our TL Rear Sight.\nPrecision-machined to ensure accurate, repeatable click adjustments for windage and elevation. No fitting required, uses factory dovetail, locks in place with two set screws. Made of steel. Rear sight notch width .110\". Fits Ruger MKII and MKIII and replaces factory rear adjustable sight. The TL Rear Sight is only compatible with the Ruger Standard tapered models with the addition of our Target Front Sight.\nThe TL Rear Sight is also available in a night sight configuration. It features .062\" green Trijicon Tritium lamps with white outline.\nDue to minor fitting required on this item, we are offering an installation service for our Target Front Sight. Simply send us your pistol and it will generally be on its way back to you in 10-14 days.\nThe C-More Slide Ride has also become the sight of choice for “custom” applications because of its ability to attach to any flat surface. This enables the sight to be mounted directly to the firearm or a custom made mount, allowing the sight to be applied to applications that may not provide standard mounting options.\nWe have packaged the C-More with an Allchin Custom Mount which allows the optic to be mounted as low as possible on the Ruger MKII/MKIII pistol.\nThe Railway sight quickly attaches to Weaver and Picatinny rail style scope mounts. This enables the Railway to be attached to virtually anything! Shotguns, rifles, handguns, revolvers, crossbows, paint ball guns; these are just a few of the applications the Railway has seen. The sight can be easily detached and installed on other weapons, making it the most versatile in the C-MORE line up.\nThe Slide Ride has become the sight of choice for “custom” applications because of its ability to attach to any flat surface. This enables the sight to be mounted directly to the firearm or a custom made mount, allowing the sight to be applied to applications that may not provide standard mounting options.\nUltra Dot red dot optic featuring a 1\" tube and a satin silver finish. 4 MOA dot size.\nThe SureFire X400 Ultra WeaponLight integrates powerful white-light illumination and bright green laser aiming capabilities in one compact rail-mountable package, an extremely effective combination for close- to medium-range engagements in law enforcement, military, and self-defense applications.\nA high-performance LED generates 500 lumens of brilliant white light that is focused by a Total Internal Reflection (TIR) lens to produce a tight beam with extended reach and significant surround light for peripheral vision. The X400 Ultra produces tactical-level light—enough to overwhelm an aggressor’s dark-adapted vision—for 1.5 hours per set of batteries.\nThe X400 Ultra’s 5-milliwatt lase … (more details).\nThe Fast Fire 3 Red Dot Sight is one of the most versatile red dot sights on the market. It features a 3 MOA dot with Picatinny rail.\n- Bright red dot allows for fast target acquisition and easy aiming\n- Compact and lightweight\n- 1x magnification allows both-eyes-open shooting, for enhanced awareness and target acquisition\n- Automatic brightness sensor adjusts brightness to match the environmental conditions; also includes 3 manual brightness settings\n- Windage and elevation adjustments make optic fine-tuning easy; no special tools required\n- High-grade optical glass provides excellent brightness and clarity with lasting durability\n- Nitrogen-filled … (more details).\nWhen your optic needs to be faster than your reactions, the Leupold DeltaPoint® Pro is up to the challenge. The lightweight aluminum housing is shrouded by spring steel for the ultimate in ruggedness while the aspheric lens generates a wide field-of-view with some of the best image quality ever seen in a reflex sight.\nLeupold’s patented Motion Sensor Technology™ discerns any movement of the sight and automatically activates the illumination which is inset into a light tunnel to reduce the light signature in tactical situations.\nThe tool-less, spring actuated battery compartment makes changing the battery quick and easy while being impervious to water at a depth of 33 feet. The 1 MOA el … (more details).","domain":"optical_engineering"}
{"url":"http://www.yin.kit.edu/english/527.php","date":"2018-12-12T18:02:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376824059.7/warc/CC-MAIN-20181212155747-20181212181247-00060.warc.gz","language_score":0.8123757243156433,"token_count":334,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__59554913","lang":"en","text":"Research Group of PD Dr.-Ing. habil. Timo Mappes\nMicrofluidic integrated system for marker-free optical cell analyses and cell sorting\nThe goal of this project is to demonstrate a miniaturised system which allows marker-free optical analyses and sorting at cell level with a minimum amount of analyte. Particles are guided through the optical resonator of a semiconductor laser diode, integrated on a microfluidic platform out of polymer and glass. Particles can be detected by evaluation of different laser parameters e.g. wavelength shift or threshold current. Furthermore, through a change in the power between the transverse modes, the morphology of particles can be detected by changes in the mode pattern. After analysing the particle, integrated optical traps are used for sorting the particles. Such a system shall be an alternative for FACS- (fluorescence-activated cell sorting) devices and offers the possibility for point-of-care-diagnostics in a hand-held unit. The participating groups are fabricating all elements of this device in house, including the tailor-made laser diodes. Within this project first prototypes of the modul will be created and characterized.\nThis project is done in close cooperation with the Institute of Optoelectronics of Universität Ulm funded by Baden-Württemberg Stiftung in the frame of Karlsruhe School of Optics and Photonics (KSOP) bearbeitet.\nDipl.-Ing. Dieter Rimpf\nPhone: +49 721 608-23845\nFax: +49 721 608-24331","domain":"optical_engineering"}
{"url":"http://000post.tk/rule/spectral-resolution-in-remote-sensing-qog.php","date":"2018-04-19T23:26:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937074.8/warc/CC-MAIN-20180419223925-20180420003925-00400.warc.gz","language_score":0.8644273281097412,"token_count":1139,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__236106714","lang":"en","text":"Determining Forest Species Composition Using High Spectral Resolution Remote Sensing Data. remote sensing instruments provide spectral data for large contiguous.It became the main obstacle to further application of remote sensing images.Potential areas for the application of this technique in remote sensing are.\nRemote sensing is the small or large-scale acquisition of information of an object.Hyperspectral remote sensing (imaging spectrometry) in particular shows strong potential for.Elimination of atmospheric haze by rescaling each frequency band so that its minimum value (usually realised in water bodies) corresponds to a pixel value of 0.Hyperspectral Remote Sensing of Vegetation: Knowledge Gain and Knowledge Gap After 40 years of.\nLearn vocabulary, terms, and more with flashcards, games, and other study tools. Search. Create. Spectral Resolution.Key Definitions. Print. Sensor. A remote sensing system comprises two basic.Hyperspectral imaging produces an image where each pixel has full spectral information with imaging narrow spectral bands over a contiguous spectral range.These thematic mappers take images in multiple wavelengths of electro-magnetic radiation (multi-spectral) and are usually found on Earth observation satellites, including (for example) the Landsat program or the IKONOS satellite.Aircraft spectral remote sensing offers both spatial and spectral resolutions that are several orders of.HIGH SPATIAL AND SPECTRAL RESOLUTION REMOTE SENSING OF PANAMA CANAL ZONE WATERSHED FORESTS: 247 crowns result primarily from the reflectance, absorption, and transmission.The frequency of the emissions may then be related via thermodynamics to the temperature in that region.\nThe rotation and orientation is often provided within a degree or two with electronic compasses.\nRemote Sensors. Overview. Remote. Remote sensing instruments are of two.Hyperspectral Remote Sensing -an. there has been worldwide research and development into the application of high spectral resolution remote sensing to various.\nIHGH SPECTRAL RESOLUTION REMOTE SENSING OF CANOPY CHEMISTRY John D.Overhead gravity data collection was first used in aerial submarine detection.Radiometers and photometers are the most common instrument in use, collecting reflected and emitted radiation in a wide range of frequencies.REQUIREMENTS ON SPECTRAL RESOLUTION OF REMOTE SENSING DATA FOR CROP STRESS DETECTION Jonas Franke1, Thorsten Mewes1, Gunter Menz1,2 1University of Bonn, Center for.The most common are visible and infrared sensors, followed by microwave, gamma ray and rarely, ultraviolet.By measuring the height and wavelength of ocean waves, the altimeters measure wind speeds and direction, and surface ocean currents and directions.The purpose of topographic correction is to eliminate this effect, recovering the true reflectivity or radiance of objects in horizontal conditions.Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation.Mapping the Invisible: Introduction to Spectral Remote Sensing.\nCompasses can measure not just azimuth (i. e. degrees to magnetic north), but also altitude (degrees above the horizon), since the magnetic field curves into the Earth at different angles at different latitudes.The Landsat program. proposed the idea of a remote sensing.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 41, NO. 9, SEPTEMBER 2003 1907 Spectral Resolution Requirements for Mapping Urban Areas.While these processing levels are particularly suitable for typical satellite data processing pipelines, other data level vocabularies have been defined and may be appropriate for more heterogeneous workflows.Object-Based Image Analysis (OBIA) is a sub-discipline of GIScience devoted to partitioning remote sensing (RS) imagery into meaningful image-objects, and assessing their characteristics through spatial, spectral and temporal scale.Recent developments include, beginning in the 1960s and 1970s with the development of image processing of satellite imagery.\nA review of remote sensing image fusion methods. the high spectral resolution is necessary for an accurate.Spectral resolution describes the specific wavelengths that the sensor can record within the electromagnetic spectrum.Synthetic aperture radar image of Death Valley colored using polarimetry.Remote Sensing and Digital Image Processing Series, Volume 17, 572 pp., ISBN.Spectral Imaging for Remote Sensing VOLUME 14, NUMBER 1, 2003 LINCOLN LABORATORY JOURNAL 3 Spectral Imaging for Remote Sensing Gary A.\nDerived geophysical variables (e. g., ocean wave height, soil moisture, ice concentration) at the same resolution and location as Level 1 source data.The spectral resolution of remote sensing data refers to the width and related to that the amount of bands covering different spectral ranges.One logical pathway that can be employed addresses the three parts of remote sensing imagery resolution. Do the spectral bands need.Light detection and ranging (LIDAR) is well known in examples of weapon ranging, laser illuminated homing of projectiles.In order to create sensor-based maps, most remote sensing systems expect to extrapolate sensor data in relation to a reference point including distances between known points on the ground.Space-borne high signal-to-noise ratio (SNR) and high spectral resolution spectral detection system with high detection accuracy (1-4ppm) is demonstrated under the.These data tend to be generally more useful for many applications.","domain":"optical_engineering"}
{"url":"https://techforhunt.com/what-makes-thermal-imaging-a-better-option-for-you/","date":"2024-02-26T18:18:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474661.10/warc/CC-MAIN-20240226162136-20240226192136-00689.warc.gz","language_score":0.907225489616394,"token_count":736,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__39444679","lang":"en","text":"Instead of being cameras, thermal imaging devices (also known as infrared or thermal energy) are sensors that sense heat. Technically speaking, these gadgets with fusion imaging optics are radiation detectors. As the temperature rises, so does the radiation.\nWith sufficient accuracy, a thermal imager may identify tiny variations in heat and show them as an imaging on a screen.\nDo you need night vision or thermal imaging?\nAnswering this question could be a challenge. Applications for thermal imagers and night vision are similar. Both will definitely have their usefulness, but here are some things to consider:\nThe cost will be a key factor. Substantially weapon-mountable variants of a competent night vision device may be purchased for a small amount. However, thermal imagers cost at least $2,000 and sometimes substantially more for ones that can be attached to rifles and survive recoil. The image enhancement night vision equipment to thermal vision equipment is likely to be chosen if money is tight.\nKnowing the circumstances in which your night vision or thermal imaging device will be utilised might be quite important. Does the fog cover a big area? If so, how chilly is it? How dense is the vegetation? When there is dense vegetation or fog, thermal imaging is necessary. Night vision is preferable when it is really cold. The military is starting to provide a supportive atmosphere in order to increase the efficiency of its technologies. Thermal imagers may peer through mini-sandstorms that helicopter pilots can produce during missions in the desert, but the human eye cannot.\nIf you plan to use image enhancement night vision, take into account the lighting conditions as it needs light to function. Even a little light should be plenty as you won’t need much; nevertheless, consider this before purchasing night vision since thermal vision might be preferred.\nThermal imaging, as previously said, is good for detection yet insufficient for identification. With night vision, it is simple to identify an item once it is seen, but if the object is camouflaged or is far away and stationary, it might be challenging to identify. To get past these problems, use a thermal imager to survey the area with a night vision rifle sight to take the shot.\nTo detect animals throughout the day before changing to a rifle scope, hunters frequently utilize spotting optics or binoculars. The similar idea underlies night–time hunting. The ideal tool in these circumstances is a portable thermal imager.\nIs thermal imaging superior to night vision?\nThe best method for finding the required game item is thermal. Only when facial recognition is necessary or for deer predation is night vision most effectively employed to recognize, identify, and harvest the game. Thermal imaging has been the greatest around-the-clock imaging solution if you have a choice.\nCan thermal imaging detect a laser?\nA thermal scope won’t be able to see the IR laser. The thermal night vision scope is an exception. Although a gen 2+ device should be used at the very least, the laser is seen with any nods.\nHow crucial is thermal vision?\nBecause thermal radiation can identify animals over a wider range of typically problematic air conditions than visual radiation, it is superior to visible imaging systems. Thermal radiation may penetrate mists, dust, aerosols, and smokes more efficiently than visible radiation.\nTo sum it up\nInvesting in thermal imaging cameras has cost-saving advantages and yields long-term rewards since they may help you prevent costly repairs and equipment damage. Maintaining the security of your personnel and assets will enable you to commit resources to other crucial issues, which can significantly impact your bottom line.","domain":"optical_engineering"}
{"url":"https://solompc.com/boris-fx-optics-2024-0-1-63/","date":"2024-04-23T15:19:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818711.23/warc/CC-MAIN-20240423130552-20240423160552-00017.warc.gz","language_score":0.8651096820831299,"token_count":365,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__92152651","lang":"en","text":"Download the standalone offline installer for Windows full version of Boris FX Optics for free. It is a sophisticated software for expert image editing.\nBoris FX Optics Overview\nColor correction, natural light, photographic effects, lens flares, film stocks and grain, optical lab operations, and optical camera filters are all simulated by this program. Use this application to enhance your photos to the next level.\nUtilize and select from thousands of presets and 160 filters. It has everything you need to creatively apply different filters and presets to images to make them better.\nYou may add amazing lighting effects to transform your image from sci-fi to realistic or use film-style settings to color grade it. It is the ultimate digital photo toolkit.\nAll filters have advanced, simple masking settings that allow them to be applied only to specific areas of the image. Optics’ comprehensive set of tools is completed with an independent batch processing system, an integrated paint system for touch-ups, and a layering system for applying multiple filters.\nBoris FX Optics Features\nFeature film effects that win awards\nSimulations of optical glass filters\nProduce vintage styles and film stocks.\nUse masking techniques to isolate effects.\nAdvanced yet user-friendly masking instruments\nGradient, Spot, Path, Snap, EZ Mask, Selection, and Paint are examples of gesture-based stroke-based masking techniques.\nUtilizing mix modes, combine several masks\nTechnical Specifications and System Prerequisites\nOperating systems supported: Windows 7, 8.1, and 10.\nProcessor: AMD or Xeon, multi-core Intel Series or higher comparable\n4GB of RAM (or more is recommended)\nFree Hard Drive Space: It’s advised to have 4GB or more","domain":"optical_engineering"}
{"url":"http://visas-project.eu/en/services-en/30-3dreconstruction-service.html","date":"2019-05-20T09:18:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232255837.21/warc/CC-MAIN-20190520081942-20190520103942-00091.warc.gz","language_score":0.9213508367538452,"token_count":765,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__98647233","lang":"en","text":"The Underwater 3D Reconstruction service focuses on the integration of optical and acoustic techniques for the generation of multi-resolution textured 3D models of underwater archaeological sites. Multibeam echosounders (MBES), usually employed for the generation of bathymetric maps in archeological contexts, allow for acquiring a great amount of data at long distances and in presence of bad visibility, but the results are affected by low resolution and do not contain color information. The optical systems, in contrast, are more suited for close-range acquisitions and allow for gathering high-resolution, accurate 3D data and textures, but the results are strongly influenced by the visibility conditions. Therefore, the integration of 3D data captured by these two types of systems is a promising technique in underwater applications, as it allows for modeling large and complex scenes in relatively short time. The method proposed in VISAS exploits the high resolution data obtained from photogrammetric techniques and the latest techniques for the construction of acoustic microbathymetric maps to build three-dimensional representations that combine the resolution of optical sensors with the precision of acoustic bathymetric surveying techniques. The method allows for obtaining a complete representation of the underwater scene and to geo-localize the optical 3D model using the acoustic bathymetric map as a reference.\nThe main steps of the proposed methodology are shown in Figure 2:\nFigure 2: Processing pipeline of acoustic and optical data.\nAfter a first inspection of the site, in order to localize the areas of greatest importance from an archaeological point of view (the only one that will be acquired with optical sensors), the integrated survey is carried out.\nSubsequently, the optical and acoustic data are merged by using a target–based registration approach. This technique is based on the detection of homologous geometrical entities (features) between the two representations and their subsequent alignment. For this purpose, we used man-made targets placed on the seabed. Taking into account that the reflective properties of the optical and acoustic signals vary according to the materials to be used, we have opted for leveraging the high reflectivity of the air in water, so we have designed custom opto-acoustic markers built from aluminum structures covered by bubble wrap.\nUsing the information coming from accurate depth measurements (with errors on positioning on the order of centimeters) obtained with the high frequency MBES equipment, the geo-referencing of the optical pointcloud ends up to be a by-product of the registration step.\nThe last steps of the process consist of meshing and texturing the opto-acoustic point cloud of the underwater archaeological site. The meshing step is carried out using a dedicated software, which has the ability to create a mesh by using an efficient multi-resolution algorithm and to perform further refinements of the model by using the point cloud as reference, so that the model reconstruction is performed in a coarse-to-fine fashion.\nIn order to place textures on the 3D model, we use a technique based on the projection and blending of 2D images on the 3D surface. In particular, since the camera poses are known downstream of the optical 3D reconstruction process, we directly map the high resolution images on the portion of the 3D surface of the model representing the archaeological remains. For this purpose, we select an image subset, because the averaging among neighborhood values during the blending on the images works better if performed on a largely overlapped area (due to the reduction of blurring).\nThe low-resolution polygonal mesh of the seabed is in turn obtained from the acoustic bathymetry and textured with a tile-based texture mapping approach that just requires to set some sample images of texture tiles instead of a large texture.","domain":"optical_engineering"}
{"url":"https://bayan-lepas-my.all.biz/laser-distance-meters-g54336","date":"2017-12-12T21:52:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948519776.34/warc/CC-MAIN-20171212212152-20171212232152-00462.warc.gz","language_score":0.920352041721344,"token_count":101,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__138129377","lang":"en","text":"Laser Distance Meters\nFluke introduces a full line of Laser Distance Meters. The Fluke 421D, 416D and 411D are professional-grade laser distance meters — they're fast, easy to use, and they fit on your tool belt. These meters will save you effort and money by reducing measurement time and errors!\nUse Fluke laser distance meters to quickly and accurately determine the distance to your target, the area bounded by two distances, or the volume within three measurements:","domain":"optical_engineering"}
{"url":"http://www.petrucik.eu/?p=1658","date":"2019-02-21T13:40:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247504790.66/warc/CC-MAIN-20190221132217-20190221154217-00632.warc.gz","language_score":0.9234814643859863,"token_count":833,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__106218265","lang":"en","text":"Nikon AF-S NIKKOR 85mm f/1.8G – best glass in the quality / price ratio\nHow it looks and works?\nthe Nikon AF-S NIKKOR 85mm f/1,8G is a compact and lightweight lens, which has nine lens in nine groups, with 7-blade rounded aperture. Its large aperture of f/1,8 is great for low-light photography and the shallow depth of field helps isolate subjects from the background. The AF works very well and fasto, so it’s great lens for portraits, concerts and traveling. Closest focusing distance from the plane is 0,8m.\nAbout the eighty-five\nThis fast prime lens from Nikon delivers superb image quality. Nikon’s Super Integrated Coating (SIC) is a multi-layer lens coating that improves light transmission, provides better color consistency, and minimizes ghost and flare to a negligible level. From the various images I shot, the lens is sharp, and it wasn’t easy to get flare. So that is well controlled. As can be expected from any optic, used wide-open, the contrast is reduced, and you will have to adjust for that in post-processing.\nThe build quality is similar to the other f1,8G lenses. The mass is practically the same as the 24 mm f/1,8g, so it is a relatively small and lightweight lens that is easy to carry and handle. It comes with a rubber gasket on the lens mount, which provides good sealing against dust making its way into the camera (the rubber gasket definitely helps not only in reducing sensor dust, but also in reducing the amount of dust that could potentially end up inside the lens). It has a much smaller and less round front element than the flagship Nikon 85mm f/1,4G lens. The thinner barrel, making the lens less bulky in comparison. A smaller barrel also means a smaller filter thread – the Nikon 85mm f/1,8G takes 67mm filters.\nThe image quality is phenomenal. From my perspective, this is the highest quality fixed lens, at a reasonable price, that Nikon has ever produced. Although the lens does not have a nano crystal coating. However, the lens coating is at a high level as in the case of much more expensive 85 f /1,4 lens.\nComparison with 20 f1,8G and 58 f1,4G\n- Superior image quality\n- Beautifully blurred backgrounds (bokeh)\n- Sharp and clear images at all apertures\n- Small size and weight of 350 grams\n- Excellent in price/quality ratio\n- Excellent aperture at f/1.8\n- Lens caps, hood and case included\n- Isn’t sealed against dust and water\n- The body is made mainly of plastic\nNikon’s 85mm f/1,8G is an excellent addition to its prime lineup. It’s small, fast, sharp – optically uncompromising. It’s a great lens for everyday photography, portraits and traveling. I think it is an ideal choice for all who takes photography seriously.\nThanks for reading!\nLens type: Normal Focal length: 85 mm Maximum aperture: f/1.8 Minimum aperture: f/16 Lens construction: 9 elements in 9 groups Angle of view: 28°30' (18°50' with Nikon DX format) Minimum focus distance: 0.8 m/2.62 ft (from focal plane) No. of diaphragm blades: 7 (rounded) Filter-attachment size: 67 mm Diameter x length: 80 x 73 mm/3.1 x 2.9 in. Weight: 350 g/12.4 oz (excluding hood) Accessories: 67 mm Snap-on Front Lens Cap LC-67, Rear Lens Cap LF-4, Bayonet Hood HB-62, Flexible Lens Pouch CL-1015\n* sample images from Nikon 85mm f/1.8G","domain":"optical_engineering"}
{"url":"https://bayplotter.com/widetek-scanner-wt36ds-600/","date":"2023-09-23T01:14:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506429.78/warc/CC-MAIN-20230922234442-20230923024442-00884.warc.gz","language_score":0.8869886994361877,"token_count":291,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__299720772","lang":"en","text":"WideTEK® 36DS – Wide Format Duplex Scanner for documents to 36 Inches (915 mm) Wide\nWideTEK® 36DS – the world´s first wide format duplex scanner for digitization of two sided printed documents up to 36 inches (915 mm) in width. At a resolution of 300 dpi the scanner needs only 2.5 seconds to scan the front and back sides of a newspaper page in a single pass through the scanner.\nThe idea of double sided scanning in one production step primarily means less production effort: The document no longer needs to be flipped over and scanned again on the other side. That makes the scanner an ideal companion for press clipping, archiving and library services.\nThe scanner features two camera boxes, both consisting of three CCD systems, integrated into the upper and lower part of the device. The WideTEK® 36DS captures both sides of the newspaper at the same time. After scanning, software separates the scanned document into four single images; capturing the left and right half of the front and back of the newspaper – everything in one single step.\nThe scanner is equipped with two processor units. This allows an extremely fast data throughput. The patented stitching procedure merges the images of the cameras seamlessly together. The scanner resolution of 1200 dpi guarantees brilliant scan results.\nThe WideTEK® 36DS encompasses the proven technologies of the entire WideTEK® scanner family.","domain":"optical_engineering"}
{"url":"https://automobilesandmotorcycles.com/product/2pcs-h3-h1-w5w-6500k-white-25w-4014-chips-30-smd-high-power-led-fog-light-headlight-lamps-bulb-lens-dc-12v/","date":"2021-05-06T15:11:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988758.74/warc/CC-MAIN-20210506144716-20210506174716-00204.warc.gz","language_score":0.6555446982383728,"token_count":135,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__134990589","lang":"en","text":"Using high-power chip\nThe new, high-quality, easy to install\nThe new LED technology reduces power consumption from 40% to 80%.\nWith the metal shell, making the lamp in the low heat of the work.\nHigh thermal conductivity, aluminum alloy and exquisite aesthetic\nFor replacement fog lamps, headlights and so on.\nLED chip models: 4014\nLED chip number: 30\nLight color: white\nSocket Type: H3,H1,T10\nColor temperature: 6500K\nLuminous flux: 550LM\nLife: 50,000 hours\nPackage includes:2PC 4014 30SMD Car LED Lights","domain":"optical_engineering"}
{"url":"http://fibercore.blogspot.com/2011/05/ofs-21-17th-18th-may-2011-ottawa.html","date":"2018-05-27T07:29:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794868132.80/warc/CC-MAIN-20180527072151-20180527092151-00597.warc.gz","language_score":0.9558058977127075,"token_count":255,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__154164765","lang":"en","text":"The OFS-21 Conference, combined with Photonics North, brought a good number of delegates to the Fibercore booth with a particularly strong turn out from Europe.\nA wide range of technologies were discussed in the Technical Forums from Fiber Bragg Grating (FBG) sensing techniques using photosensitive fibers such as our PS-range of fiber and our high germania fibers, scattering sensing methods, utilizing Rayleigh, Brillouin and Raman scattering, and polarization sensing techniques using both PM and SM fibers.\nThe rate of adoption of fiber optic sensors in industry has taken a slow but steady rise with a notable recent acceleration in the acceptance of such techniques for commercial use. As safety becomes a greater issue, companies become liable for any environmental damage and resources become more difficult and costly to extract, these sensor systems start to be viewed as a necessary requirement rather than just academic interest.\nAcoustic, vibration, pressure and temperature sensors were all aimed at large industries, particularly the oil and gas, wind energy and security industries.\nWith OFS-22 based in Beijing, China, between 14th-19th October 2012, it will be exciting to see how some of these technologies have matured and we will hopefully get a strong turn out from the Asian market.","domain":"optical_engineering"}
{"url":"http://augustslvf947.affiliatblogger.com/11799399/2-details-you-do-definitely-not-appreciate-with-regards-to-lasik-eye-treatments","date":"2019-01-22T22:41:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583875448.71/warc/CC-MAIN-20190122223011-20190123005011-00269.warc.gz","language_score":0.955917477607727,"token_count":860,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__169386282","lang":"en","text":"The eye can be examined with relative ease regarding both its function and its structure. A practical assessment consists of the capability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye might be checked in several methods. The patient may be asked to recognize illuminated letter or objects of varying sizes on what is called the Snellen chart.\nAlternatively, the examination of the structural part of the eye may be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In certain illness, particularly in glaucoma, the stress in the eyeball is increased markedly.\nIt ought to be well remembered that a patient with an eye problem may have other issues. Frequently other physical conditions are primary and affect the eye as a effect. The look of the eye can inform the patient and the physician to problems in some disturbances of other parts of the body even prior to other signs provide themselves.\nOne's reliance on sight is highlighted when one deals with a possible or momentary irreversible loss of this important sense. For this reason, when restorative measures are looked for, certain forms of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some people are bothered with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were established to encourage decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nGenerally, LASIK eye surgery is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgery is another form of vision correction. The only difference is that with this kind of surgical treatment, one's vision is corrected completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are permanently changed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade referred investigate this site to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people should understand. Most likely, the main reason this kind of eye surgical treatment has ended up being well accepted is due to the fact that the majority of its cases had succeeded.\nIn spite of its success, there Source are still some downsides. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nSince LASIK eye surgery involves the operation of the retina, which is one of the most delicate parts of the eye, most individuals state that the operation can be extremely risky.\nIn other words, a simple error might almost trigger an person's life time blindness. It is important to consider many aspects prior to choosing whether LASIK eye surgery is the ideal corrective measure one has to go through.\n2. It is not a best procedure\nLASIK eye surgical treatment may correct your vision but it does not always indicate that it can give you a twenty-twenty. Even if statistical reports reveal that 70% of the patients might have 20/20 vision, this does not necessarily suggest they have ideal vision as well.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not constantly be the ideal eye surgical treatment the method many people see it\nConversely, the examination of the structural part of the eye may be made in several ways. It should be well kept in mind that a client with an eye issue may have other issues. Typically other physical conditions are main and impact the eye as a consequence. The look of the eye can notify the patient and the doctor to troubles in some disruptions of other parts see post of the body even prior to other signs present themselves.\nLike its concrete equivalent, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://www.cache-media.com/?p=2101","date":"2017-04-27T14:47:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122174.32/warc/CC-MAIN-20170423031202-00041-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9132501482963562,"token_count":302,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__295448432","lang":"en","text":"This featured still is from a well known daytime TV show. The Marshall CV 150M camera was used as a hidden camera, totally unnoticed by the subject and yet giving full HD pictures for a live broadcast. More and more TV production companies are turning to the Marshall mini cam range for use in live broadcasts thanks to their high performance and tiny size. The CV 150M is little larger than a fingernail.\nThe CV150M Micro 2MP HDSDI (3G) POV Cameras with Interchangeable lenses meet the heavy duty requirements of High Definition Broadcast applications for filming all types of Broadcast projects such as Sports, Reality TV, Hidden POV, Culinary, Racing, Stunt and Fast Paced motion. Importantly it can work at 1080P 50 as well as 1080i 50.\nIn addition, these HD cameras have a less than 1-inch x 1-inch camera body and boast HD-SDI/3G-SDI (BNC) output, 0.1Lux (F1.2 50 IRE, AGC Max), 0.01Lux (DSSx4) white balance, exposure, gamma, red/blue gain, wide dynamic range (ACCE), DNR (2D+3D), digital defog and advanced RGB interpolator for HD resolution. They feature an on screen display joystick on the rear camera panel.\nFor more details please see our range of Marshall mini cams at www.cache-media.com","domain":"optical_engineering"}
{"url":"https://verticalmag.com/press-releases/spaes-promotes-swiss-rotor-services-mpvk/","date":"2023-05-30T11:11:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224645595.10/warc/CC-MAIN-20230530095645-20230530125645-00568.warc.gz","language_score":0.905857264995575,"token_count":173,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__85753122","lang":"en","text":"Estimated reading time 2 minutes, 21 seconds.\nSPAES and Swiss Rotor Services joined forces to promote the use of the Maximum Pilot View Kit (MPVK) for the H125/AS350 helicopters. The MPVK provides the pilot with an uninhibited field of view below and to the right-hand side of the aircraft.\nSPAES holds now officially the Supplement Type Certificate and will ensure continued airworthiness in future projects for the installation of an MPVK.\nThe kit significantly improves the pilot’s headroom by adding a new single piece bubble door to the aircraft, thereby increasing lateral visibility when leaning to the right, even when wearing a helmet. A large lower viewing aperture and transparent fuselage window fairing significantly increase the vertical field of view forward, aft and directly underneath the aircraft by a factor of ten, compared to existing solutions.","domain":"optical_engineering"}
{"url":"https://www.lightandmagnify.com/product-category/davinci-family/","date":"2021-05-14T00:05:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989616.38/warc/CC-MAIN-20210513234920-20210514024920-00050.warc.gz","language_score":0.9571788311004639,"token_count":114,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__73592442","lang":"en","text":"The DaVinci is a heavy duty CCTV with a 3 in 1 camera, a 24 inch monitor and very clear HD optics. The image is magnified up to 77X and the LCD HD image includes 28 choices of color and contrast. In addition to allowing the user to read, the DaVinci includes text-to-speech capabilities so can read aloud when the eyes are tired. DaVinci can also be attached to a computer, iPad or other tablet. Documents can be uploaded into the machine or downloaded into a computer for saving and editing.","domain":"optical_engineering"}
{"url":"http://www.navkar-safety.com/safety-glasses-1884581.html","date":"2019-02-20T16:34:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247495147.61/warc/CC-MAIN-20190220150139-20190220172139-00206.warc.gz","language_score":0.8756803870201111,"token_count":121,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__13507812","lang":"en","text":"|Home||» Products||» Personal Safety Equipments||» Safety Glasses|\nWith the help of our high-tech production unit, we are capable of manufacturing and supplying a large array of Safety Glasses. All our glasses are superbly made by keeping in mind all the safety and durability standards. Available in a variety of colors, designs and styles, these glasses are used to protect the eyes from dust, gases and harmful environmental pollution. Before final delivery, we test all the Safety Glasses on various quality parameters.\n- Superior finish\n- Light weighted\n- Provide optimum eye coverings","domain":"optical_engineering"}
{"url":"https://www.eiphila.com/products/nuphoton-technologies","date":"2022-12-01T22:30:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710870.69/warc/CC-MAIN-20221201221914-20221202011914-00074.warc.gz","language_score":0.7555772066116333,"token_count":172,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__213857825","lang":"en","text":"Nuphoton Technologies Inc. is a pioneer in nanosecond and sub-nanosecond pulsed fiber lasers for LIDAR, ultra compact picosecond laser and femtosecond laser, low noise figure optical fiber amplifiers, linear polarization maintaining optical fiber amplifiers, and broadband flat spectrum ASE light sources. Applications cover defense, aerospace, medical, industrial, telecom test instrument, and scientific R&D markets.\nPictured is their table top fiber laser, manually or electrically tuned, offering 10 picosecond or shorter pulse width featuring wavelength tunability between 1030 nm and 1070 nm.\n- Broad Spectrum of Erbium Doped Fiber Amplifiers (EDFA)\n- High-Power Laser Sources\n- EDFA Based Amplified Spontaneous Emission (ASE) Sources","domain":"optical_engineering"}
{"url":"http://www.newsflash.org/2004/02/si/si002097.htm","date":"2021-05-18T08:59:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989756.81/warc/CC-MAIN-20210518063944-20210518093944-00410.warc.gz","language_score":0.9179363250732422,"token_count":1414,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__65845936","lang":"en","text":"PCASTRD-DOST: SCIENCE AGENCY HONORS GROUND-BREAKING R&D PROJECTS\nVIA THE INTERNET, December 29, 2005 [The article highlights on the three winners of the biennial Search for Outstanding R&D, Thesis and Dissertation Awards organized by Philippine Council for Advanced Science and Technology Research and Development-Department of Science and Technology (PCASTRD-DOST), from JANET POLITA, RIUD-PCASTRD; For more information, please contact: DR. VIRGINIA G. NOVENARIO-ENRIQUEZ Tel. Nos. 837-2071 loc. 2102-2109]\nA state-of-the art device applicable to the semiconductor industry, particularly optical and wireless communication, bagged the major prize in the biennial Outstanding R&D, Thesis and Dissertation Awards organized by the Philippine Council for Advanced Science and Technology Research and Development (PCASTRD) of the Department of Science and Technology (DOST). The Awards are PCASTRD's way of recognizing and rewarding excellent R&D performance and significant research outputs in the advanced science and technology.\nAt the awarding program held recently, DOST Secretary Estrella F. Alabastro lauded the winners for their innovative work and urged researchers to persevere to bring potential products and projects out of the R&D environment and into the market. \"The only way we could foster innovation, create new jobs and build a stronger economy for our country is by investing in high-technology R&D and collaborating with industries to support R&D outputs,\" she said.\nDOST Undersecretary for R&D, Dr. Rogelio Panlasigui, challenged researchers to work towards gaining greater international visibility for their R&D work to build confidence in our country's capacity to do world-class R&D. He added that R&D outputs should further promote quality of life for Filipinos.\nOn the other hand, PCASTRD Executive Director Reynaldo V. Ebora lauded the researchers' ability to produce quality outputs, at par with their foreign counterparts, in spite of funding limitations.\nOutstanding R&D projects Besting 14 entries that joined the R&D competition and winning P200,000.00 cash prize was the project titled \"Device Fabrication of GaAs-based Semiconductors for Optoelectronics and RF Applications, \" developed by the team of Dr. Arnel Salvador from the National Institute of Physics (NIP) of the University of the Philippines-Diliman. The project fabricated, characterized, and investigated Gallium-Arsenide (GaAs)-based electronic devices suited for optoelectronic and radio frequency (RF) applications.\nGaAs is a compound semiconductor made up of Gallium and Arsenic. It has the ability to conduct electricity faster than silicon, discharge light, and produce less noise, making it a good material for use in high-speed communications devices such as cell phones and in fiber optic networks. It can also amplify weak-signals.\nDr. Salvador and his team grew the material through molecular beam epitaxy (MBE), which finds use in creating new structures and crystal materials such as semiconductor laser diodes, light emitting diodes, photodetectors, and quantum dots. Molecular beam epitaxy (MBE) is an ultrahigh vacuum technique for growth of monocrystalline layers. It allows the growth of layers and layer systems of high purity and crystalline quality.\nAccording to Dr. Salvador, they pursued the project in order to strengthen the country's capability in developing semiconductor devices in view of the rising global demand for faster and broader information dissemination. He added that the project is the first successful attempt to design, fabricate, and characterize such semiconductor material in the country.\nWinning second place and P150,000.00 cash prize is the project that uses a hydrogen Raman shifter to produce novel applications in imaging and holography. A Raman shifter is a device that changes the frequency of light by inducing the Raman effect (the change in wavelength of light scattered while passing through a transparent medium) on a beam passing through it.\nThe project, led by Dr. Caesar Saloma of NIP-UP Diliman, exploited the many applications of hydrogen Raman shifter (HRS). First, with HRS, they were able to develop an auxiliary system to enhance the capability of their existing laser facility. Through the HRS, their facility which operates only at single wavelength, can now efficiently convert single wavelength beam from laser to a wide range of emission lines extending from near-infrared-to the ultraviolet.\nFurther, the project, through HRS, was able to produce three novel applications in imaging and holography. First, it was able to demonstrate a two-color two-photon (2C2P) fluorescence with a single light source, which is an important development in a 2C2P microscope. This development offers a great utility for dynamic imaging of living cells in thick specimens such as intact tissues, study of DNA sequencing and chromosomes analysis and the like.\nSecond, it demonstrated the two-color two-photon optical beam-induced current (OBIC) with Raman shifter. This progress in OBIC is considered an important technique in the inspection and analysis of integrated circuits and other semiconductor devices. Lastly, it exhibited pulsed multicolor digital holography, which is essential in producing high-resolution and high-sensitive image recording and reconstruction.\nTaking the third place with P100,000.00 prize is the project that developed and applied reproductive biotechniques for domestic animals in the country. Biotechniques include in-vitro fertilization, superovulation, embryo transfer, and cryopreservation of embryos. Through the adoption of the biotechniques, the researchers from the Philippine Carabao Center, Nueva Ecija, were able to produce the first test-tube buffaloes and the first frozen-thawed goat embryos. The aforementioned techniques could also help improve the quality of animal production, which ensures animals that are healthy and free from physical abnormalities.\nPCASTRD's Outstanding R&D Awards, which started in 1994, is a biennial search that aims to encourage researchers to pursue innovative works in advanced S&T areas namely biotechnology, information and communications technology, electronic technology, photonics, space technology applications and materials science. (by: Janet Rosalie Anne H. Polita)\nChief News Editor: Sol Jose Vanzi\n© Copyright, 2005\nby PHILIPPINE HEADLINE NEWS ONLINE\nAll rights reserved\nPHILIPPINE HEADLINE NEWS ONLINE [PHNO] WEBSITE","domain":"optical_engineering"}
{"url":"http://www.eaglenewsonline.com/news/2012/mar/02/ephesus-develops-worlds-first-led-stadium-lighting/","date":"2015-11-29T02:06:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398455135.96/warc/CC-MAIN-20151124205415-00314-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.9302020072937012,"token_count":440,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__96659468","lang":"en","text":"Baldwinsville The newest innovation in stadium lighting will be unveiled to the public at 10 a.m. Friday, March 9, in the Center of Progress Building at the New York State Fairgrounds, during move-in for the “Gater Racing News” Motorsports Show. Ephesus Technologies, an LED lighting innovation company based in Syracuse, which plans to expand to Radisson, has partnered with Central New York Raceway Park to unveil and demonstrate the world’s first LED stadium lighting solution.\n“We are very pleased to partner with Ephesus Technologies,” said CNYRP President Glenn Donnelly. “I believe their (Ephesus Technologies) Raydeon Series LED stadium lighting will not only be revolutionary but will be the most cost efficient and practical option in today’s market.”\nDuring the Friday press conference the world’s first racetrack/stadium LED lights will be on display for media and the general public. The stadium LED light is part of the Raydeon Series LED lights, which are manufactured in New York, and range in size from 800W to 2500W. The LED lights developed by Ephesus Technologies uses 70 percent less energy and will maintain a consistent lumen light output for more than 20 years. Designed on durability, the lights will endure extreme weather in any climate. The Raydeon Series LED qualifies for energy saving incentives. The most important features is that the Raydeon Series LED lights can be turned on/off instantly with dimming capabilities, unlike the Metal Halide bulbs that take 20 to 30 minutes to warm up and create a huge power surge causing a huge spike in electricity.\n“The Raydeon Series LED is the best solution for any outdoor lighting application,” said Joe Casper, president of Ephesus Technologies. “Not only are they the most cost efficient lighting solution, but they designed to be dark sky compliant and allow areas to be lit more effectively. The dark sky features of our LED lights will eliminate light spillage into unwanted areas. This is an important consideration for nearby neighborhoods and roadways.”","domain":"optical_engineering"}
{"url":"https://www.survey-tech.co.uk/shop/laser-rotators/ZONE-SERIES","date":"2021-10-25T11:09:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587659.72/warc/CC-MAIN-20211025092203-20211025122203-00439.warc.gz","language_score":0.6859902143478394,"token_count":184,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__90741484","lang":"en","text":"shop by category\nSuitable for a wide range of applications GeoMax laser rotators are true multi-purpose tools with an oustanding cost-effectiveness. From site work and levelling to alignment, pipe laying, interior finishing and civil engineering projects - these multi-purpose lasers always offer the required accuracy and reliability.\n- GeoMax ZONE20 H Laser Rotator 495.00 +VAT view product\n- GeoMax ZONE40 H Laser Rotator 745.00 +VAT view product\n- GeoMax ZONE20 HV Laser Rotator 750.00 +VAT view product\n- GeoMax ZONE60 HG Laser Rotator 945.00 +VAT view product\n- GeoMax ZONE60 DG Laser Rotator 1525.00 +VAT view product\n- GeoMax ZONE70 DG Laser Rotator 2295.00 +VAT view product","domain":"optical_engineering"}
{"url":"https://icareassociates.com/services-2/ortho-k/","date":"2023-01-27T14:29:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494986.94/warc/CC-MAIN-20230127132641-20230127162641-00872.warc.gz","language_score":0.9177950620651245,"token_count":208,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__304543471","lang":"en","text":"Orthokeratology or Ortho-K is the science of gently re-molding the outermost layer of the cornea to alter how light is focused on the retina. It is a non-surgical and reversible procedure where the corneal curvature is altered by wearing custom fit retainer lenses while you sleep.\nThese lenses are highly oxygen permeable and are worn every night while sleeping and removed after awakening in the morning. Once removed in the morning, you should have noticeably better vision which gets better each day until maximum correction is achieved.\nTreatment times can vary depending on patient’s prescription and patient’s ability to successfully wear the lenses for the recommended 7 hours of sleep. After successful treatment patients will experience clear functional vision throughout the day without the need for glasses or contact lenses. The treatment is completely reversible after cessation of lens wear.\nIf you have more questions about orthokeratology, don’t hesitate to contact us today at (609) 536-1017.","domain":"optical_engineering"}
{"url":"https://hauntedauckland.com/site/long-exposure-images-of-very-distant-lights-the-effects-of-atmospheric-scintillation/","date":"2022-07-05T12:22:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104576719.83/warc/CC-MAIN-20220705113756-20220705143756-00220.warc.gz","language_score":0.9553778171539307,"token_count":2356,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__136003629","lang":"en","text":"The Effects of Atmospheric Scintillation\nWhen the exposure time is a large fraction of a second the image of a distant light such as that of a star or planet can be changed from what it should look like, a bright white point of light, to a “squiggly” line (or smear or streak) which has varying intensity (varying image brightness)and varying colour along the squiggly line. The reason for these changes in the image is a combination of (a) camera motion and (b) atmospheric scintillation. Let us consider, first, the effect of camera motion.\nCamera Motion Elongates or “Stretches” the Image\nCamera motion during the exposure time causes the image to become elongated into a straight or curved line. Typically the camera motion is quite random, as when the camera is held by hand (not on a tripod and not rigidly clamped to a structure), so the elongated image looks “squiggly,” i.e., there are seemingly random straight and curved segments of the elongated image which could range from being a (nearly) straight line to being a closed loop (or several closed loops). Experiments have shown that the amount of random motion or “squiggliness” increases with the magnification or “zoom” factor. When a person holds the camera there can be small random variations in the camera pointing direction that are a result of breathing by the camera operator. Experiments have shown that when a single location on the camera body is pressed against a rigid surface, such as a car or a post, the slight body motion caused by breathing or by one’s pulse is enough to rotate the camera pointing direction by a fraction of a degree. This small rotation is magnified by the “zoom” factor. A typical video records 30 frames (pictures) per second. The slight camera motion causes the image to move around in a random manner. However, at 30 frames\nper second there is not much motion during a single frame. Hence the image in a given frame of a typical video is smeared only slightly by ordinary, uncontrollable hand motion. However, when the frame rate is slowed, as in the “night mode” operation of a JVC type camera, the exposure time per frame is lengthened and hence the image elongation is greater (the length of the image increases with exposure time). In particular, when the JVC-type camera is operated at night and a distant light or a star or planet is the object being recorded, the frame rate drops to 2/second or 1/2 second per frame. The combination of this slow frame rate and the zoom magnification is sufficient to create very elongated images such as shown above and below.\nElongation as “Time to Space” Conversion\nConsider, now, videotaping a light which changes rapidly in intensity or colour (or both). Such changes would be detectable as variations in the image from frame to frame under normal operation (30 frames/second) when the camera pointing direction is perfectly steady (e.g., a tripod-mounted camera), as long as the time between changes was considerably longer than 1/30 sec, or, equivalently, the pulsation or oscillation rate were considerably less than 30 Hz. (If the changes are at a steady rate, i.e., if they form a steady oscillation, that is faster than 30 Hz the changes could still be detected as an “aliased” signal, i.e., the apparent oscillation frequency as recorded by the camera would not be the actual oscillation frequency of the light.) If, on the other hand, the frame rate is very low, it is still possible to detect variations in the light by using the “time to space conversion” effect (the operating principle upon which the “streak camera” is based).\nIn this case the camera is rotated to scan across the direction to the light so that at the beginning of a frame exposure the light image is at one point on the image plane (CCD in a video camera or film in a film camera) and at the end of the exposure time the image is at another point on the image plane. When this angle scanning is done at a constant rate there is a one-to-one correspondence between distance between two points at different locations on\nthe image and the time difference between those points. The angle scan begins at one end of the elongated image and ends at the other end, so the total length of the image (e.g., as measured in microns or millimetres on the image plane) corresponds to the total exposure time. If the image is of a steady light then the image has a uniform intensity along its length as long as the scan rate (e.g., in degrees per second) is constant. If the scan rate is not constant, as happens with a hand-held camera, there are variations in brightness and width along the length of the image of a distant, steady light. If the scan rate is constant and the light pulsates at a steady rate, this pulsation will show up as image brightness variations at regular intervals along the image. If the scan rate is not constant the spacings between the pulses will change, with the spacings being roughly proportional to the scan rates (e.g., faster scan rate, greater distance between pulsations).\nThe pictures below provide illustrations of the “time to space conversion” effect as applied to the images of both steady and pulsating lights at a power station that was about 2 miles away. The typical mercury vapour or sodium vapour street-lights do not emit constant light. Instead they pulsate with the alternating electric current which powers them. These intensity pulsations are fast and are not noticed by a person simply looking at the lights or even videotaping the lights with a camera mounted on a tripod (or other rigid mount). However, if the camera pointing direction is turned, as described above, the “time to space conversion” makes the pulsations visible. (A person can see the pulsations with the naked eye by turning his eyes rapidly while looking generally in the direction of one of these pulsating lights.) An incandescent light, on the other hand, does not have brightness pulsations (or the pulsations are so small as to be only detectable with special equipment) because the thermal mass of the filament averages over the power pulsations in the alternating current. In the pictures below one sees the time to space conversion images of both pulsating and steady lights. I obtained these images by intentionally turning the camera slightly while videotaping in the night mode so these are 1/2 second exposures. The upper\nred images were made by two red, incandescent lights on the sides of the smokestack. The very bright (overexposed) white lights incandescent spotlights. Both mercury vapour and sodium vapour lights created the lines which are made up of series of pulsations or “dot images.” The atmospheric scintillation effect described below may also have affected the images.\nTime-to-Space Conversion Effects on Images of Very Distant Lights\nWhen light travels long distances (tens to hundreds of miles) through the atmosphere it is modified by the atmosphere. The modification with which most people are familiar are the brightness pulsations or “twinkling” of stars. Stars which people can see are basically constant light sources. Yet, when viewed through the atmosphere they appear to change randomly in brightness and, especially when viewed through a telescope or zoom lens, to move laterally by small amounts. Something else happens: colour dispersion. Colour dispersion is the basic property of a prism that “splits” light into its component colours. The atmosphere can do this because air can act as a very weak prism. When light travels long distances through the atmosphere the prism effect can cause light of varying colours to enter the camera aperture (lens opening) at varying times. This effect of the atmosphere can be approximately duplicated by putting a triangular prism in front of a camera and shining a small light (or sunlight) through the prism so as to make the colour spectrum appear at the lens of the camera. Then rotate the prism slightly back and forth to make the different colours pass through the lens into the camera.\nThe images below show what the JVC camera recorded when pointed at the planet Mars, which is a reasonably bright\nexo-atmospheric light source (basically a reflector of sunlight). The light from Mars travelled many tens of miles through the earth’s atmosphere before reaching the small aperture of the camera. The atmosphere caused the various colours of the light to arrive at the camera aperture at various random times, and these varying “bursts of a single colour” were recorded during the 1/2 second exposure time as variously coloured “image blobs” lying along the squiggly “time to space conversion” line. Examples of this effect are shown in the first illustration (video frame) above and in the illustrations below. (Note: the colour and brightness variations of the original images from the camera have been limited to 256 levels and by the .jpg compression that has been used to reduce the byte size of this article.)\nI obtained these images of planet Mars with a JVC GR D850 mini-DV camera at 40 – 70X zoom with one part of the camera pressed against the body of a car. I attempted to hold the camera perfectly steady. There was no noticeable hand vibration caused by imperfect control of my muscles. Still, the image moved. I then realized that the breathing and the pulse in my hand were enough to cause slight motions of my hands and these motions were enough to rotate the camera very slightly. I could not prevent the camera from rotating just by pressing one part of the camera against the car. Had I pressed a flat surface of the camera against a flat surface of the car I might have stopped the vibration. However, I had no convenient flat surface that would allow me to press the camera against it and still be able to point toward the planet so I was limited to “single point stabilization,” which does reduce but does not eliminate the hand vibration, as would would happen if the camera were mounted on a tripod.\nThe image of a distant light (tens of miles or more) seen through the earth’s atmosphere as recorded on a hand-held camera, even one which is pressed against a solid support (at a single contact point on the camera), can be an elongated “squiggle” (a randomly curved or straight line) consisting of bursts or “dots” of varying image brightness and colour. Sometimes a line image in a single frame (e.g., 1/2 sec exposure time) or motion of an image over several frames (e.g., at 30 frames/sec) is interpreted as evidence that the object or light being filmed was moving linearly or randomly. This interpretation could be correct if it were known that the camera was on a tripod or that several parts of the surface of the camera were pressed against a rigid support such that the camera could not rotate in any direction. However, unless the rigidity of the camera pointing direction can be assured, one must allow for the possibility or probability that the apparent image motion is a result of uncontrollable hand","domain":"optical_engineering"}
{"url":"http://strongendo.com/product/httpmicroscopeinternational-comimagecachedataproduct_imagesseiler-evolution-xr6-dental-microscope-ceiling-mount-500x500-jpg-httpmicroscopeinternational-comimagecachedataproduct_imagess/","date":"2023-10-02T08:30:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510983.45/warc/CC-MAIN-20231002064957-20231002094957-00315.warc.gz","language_score":0.8677270412445068,"token_count":510,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__324170709","lang":"en","text":"Seiler Evolution xR6 Dental Surgical Microscope\nIncludes the 0-220 binocular head\nThe Seiler Evolution xR6 offers endodontists and demanding general dentists one of the best dental operating microscopes available anywhere. Why is the XR6 the best choice in a dental microscope? It's combination of quality, features, and value is unmatched by any microscope. This microscope comes from the optical experts at Seiler in St. Louis, Missouri. The Evolution offers 6 steps of magnification from a great wide-field 2X view to an extreme 19X. The xR6 comes standard with a brilliantly bright fully adjustable LED light source with the LEDs built into the actual microscope head. So only a led power connection cable runs from the microscope head to the control box, and you no longer must rely on fragile and expensive fiberoptic cables.\nThe new xR6 uses an brand new optical path design of all apochromatic lenses made from german glass, resulting in a microscope you can use for long periods without eye strain. A new gas piston arm design is longer than before for better reach, and our customers are relieved to get rid of the bounce found in spring arm microscope supports.\nWith a lifetime warranty on the optics and mechanics, the best optics available, stable and easy positioning, and great support, the xR6 is simply the best choice in dental microscopes.\nCamera, Video, and Assistant Packages\nIf you wish to order more than one of the camera/video/assistant packages, for example you would like a camera and assistant scope, then the price will be reduced because only one beamsplitter is needed. We have many options for camera, video, and assistant viewing that we'd be happy to talk to you about. 417-355-9000\nxR6 Dental Microscope Specifications\n6-step magnification turret (2.3x, 3.2x, 5x, 8.2x, 12.8x, 19x)\n250mm Objective Lens is standard (175mm-400mm or variable zoom available)\n0-220 Binocular Head\n10x Wide Field Eyepieces (12.5x and 20x also available)\nLED Illumination System: 80,000 LUX\nTrue Coaxial through-the-lens illumination\nStandard Counterbalance System\nLive Video and Digital Camera Accessories Available\nLifetime Warranty on Optics and Mechanics","domain":"optical_engineering"}
{"url":"https://adultchildeye.com/our-services/adult-eye-services/iols/","date":"2023-09-26T01:20:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510130.53/warc/CC-MAIN-20230926011608-20230926041608-00603.warc.gz","language_score":0.9200990200042725,"token_count":712,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__116676244","lang":"en","text":"What type of intraocular lens (IOL) should I choose?\nCataract surgery involves the removal of your cloudy lens and replacing it with the insertion of an intraocular lens (IOLs). Various IOLs are available:\nStandard IOL (monofocal)\nThis IOL does not correct for astigmatism and is designed to deliver good vision at only one distance (usually for distance). You will still need glasses for computer work and for reading. If you have astigmatism, you will need glasses after the surgery for both distance and for reading.\nDesigned to reduce your need for eyeglasses for both distance and near vision. There is an option for multifocal toric IOL if you have astigmatism.\nDesigned to treat astigmatism and deliver excellent vision at a single distance. You will still need glasses for computer work and for reading.\nWhat is Astigmatism?\nIn an eye with astigmatism, the shape of the cornea causes light to fall on multiple points, either in front of the retina or behind it (or both). Astigmatism usually causes vision to be blurred or distorted to some degree at all distances.\nToric IOLs help to reduce the amount of residual astigmatism and reduce your dependence on wearing glasses. They do not totally negate the amount of residual astigmatism.\nBefore the day of surgery, additional measurements and calculations are taken to allow the doctor to choose the correct toric IOL power and the required alignment of the implant in the eye to correct the astigmatism accurately.\nToric IOLs have special markers that enable the surgeon to rotate the IOL in the eye so the astigmatism correction is properly aligned. Use of a toric IOL during cataract surgery does not increase the risk of common cataract surgery complications. Occasionally, the intraocular lens implant may move post-operatively causing it to become off-alignment. This can result in residual astigmatism. A second surgery can be done to realign the IOL. The alternative to the second surgery may be to wear glasses to correct the induced astigmatism instead.\nMultifocal IOLs are designed to allow you to see clearly at more than one focus point. This allows spectacle independence most of the time and is more convenient.\nHowever, side effects of all multifocal IOLs include decreased contrast sensitivity, characteristically experienced as a loss of some clarity in dim lighting. Patients may also experience some glare and haloes especially at night (headlight of oncoming vehicles). It may still be necessary to wear glasses to read especially in low light conditions and when the wording is very small.\nLimitations related to Toric and Multifocal IOLs\nIn situations where the lens bag is unstable or broken, the surgeon may decide that it is not suitable to insert a toric or a multifocal IOL because the IOL will not be able to sit centrally in the capsular bag. The surgeon may decide to insert a monofocal non-toric lens in the capsular bag instead.\nDespite advances in IOL power calculation, there is a small risk that there may still be residual refractive error post cataract surgery. It may then be necessary to correct that with refractive surgery or the patient may choose to wear glasses.","domain":"optical_engineering"}
{"url":"http://ledture.com/1904.html","date":"2020-07-09T09:35:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655899209.48/warc/CC-MAIN-20200709065456-20200709095456-00471.warc.gz","language_score":0.9306430816650391,"token_count":129,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__35321898","lang":"en","text":"LEDTURE have been developing LED Area Lights that reduce light spillage and glare while provide a good uniformity of light, as well as offers a flexible lighting solution that can be fine-tuned to any location.This project totally needs 80 sets of 320W LED Area Light for tennis courts. It adopts standard configuration and the height of pole is 6 meters. It is reduced light spillage and glare while provide a good uniformity of light. The average illumination can reach more than 300 lx, which can meet the general competitions standard.\nInstallation Time： November 2017\nInstalled Luminaire: 320W Area Light","domain":"optical_engineering"}
{"url":"http://www.google.com.jm/patents/US6365061","date":"2017-12-16T03:29:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948581053.56/warc/CC-MAIN-20171216030243-20171216052243-00347.warc.gz","language_score":0.8793984055519104,"token_count":8792,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__24853031","lang":"en","text":"|Publication number||US6365061 B1|\n|Application number||US 09/251,774|\n|Publication date||2 Apr 2002|\n|Filing date||17 Feb 1999|\n|Priority date||17 Feb 1999|\n|Also published as||DE10084268T0, DE10084268T1, US6808648, US20020088770, WO2000049610A1|\n|Publication number||09251774, 251774, US 6365061 B1, US 6365061B1, US-B1-6365061, US6365061 B1, US6365061B1|\n|Inventors||Lewis S. Damer, Stephen W. Farnsworth, Robert S. Jackson, Mark P. Lubratt, Robert C. Martin, David M. Perry, John J. Simbal, Daniel P. Stubbs|\n|Original Assignee||Imation Corp.|\n|Export Citation||BiBTeX, EndNote, RefMan|\n|Patent Citations (17), Non-Patent Citations (1), Referenced by (27), Classifications (9), Legal Events (5)|\n|External Links: USPTO, USPTO Assignment, Espacenet|\nThe invention relates generally to the etching of servo tracks on magnetic data storage media. More particularly, the present invention relates to etching servo tracks on magnetic data storage media using multiple etching beams of laser energy provided from a source beam.\nServo patterns are used to control movement of read/write heads over magnetic data storage media where the media is provided in the form of a circular disk or a tape. The servo patterns on conventional magnetic data storage media, e.g., disks and tapes, are typically provided by magnetically encoding the magnetic coating provided on the substrate of the media.\nMagnetic data storage disk systems have been developed that combine magnetic disk recording techniques with high track capacity optical servo patterns and drive systems. In use, an optical servo pattern is pre-recorded on a magnetic floppy disk in the form of a large number of equally spaced concentric tracks about the rotational axis of the disk. Data is stored in the magnetic tracks between the optical servo tracks using conventional magnetic recording techniques. An optical servo mechanism is provided to guide the magnetic read/write head accurately over the data between the optical servo tracks. By utilizing optical servo techniques, much higher track densities are achievable on a relatively inexpensive and typically removable magnetic media. In addition, the servo pattern is not subject to erasure or other degradation from external magnetic fields as are magnetic servo patterns.\nThe optical servo patterns used on disks may include a large number of equally spaced concentric tracks about the rotational axis of the disk or they may be provided as a continuous spiral track extending from the inside diameter of the disk to the outside diameter of the disk. U.S. Pat. No. 4,961,123 discloses optical servo patterns in which the tracks may be a single continuous groove, a plurality of equally spaced circular pits, or a plurality of short equally spaced grooves or stitches.\nA number of techniques for forming the optical servo patterns on the magnetic data storage disks have been developed. U.S. Pat. No. 5,067,039 discloses a method for stamping the servo tracks on the magnetic media using a master stamping disk. U.S. Pat. No. 4,633,451 discloses a method of providing optical servo information on a magnetic medium including a multi-layer film. The optical servo tracks are formed on the multi-layer film by causing a reaction or interdiffusion to occur between layers. The reaction produces a reflectivity contrast between the exposed and unexposed areas. Other methods for manufacturing servo tracks are mentioned, including contact printing, embossing, and lithography.\nAnother approach to providing laser-etched optical servo tracks on magnetic data storage disks involves contact lithography, i.e., masking the area over which the servo pattern is to be formed, followed by directing laser energy over the masked area. See, e.g., U.S. Pat. Nos. 5,501,944 & 5,633,123. The mask includes openings or transparent areas to allow ablation of the disk surface such that an optical servo pattern is formed on the disk. Disadvantages of this approach include the requirement for a high power laser source and the difficulties in manufacturing the masks.\nU.S. Pat. No. 4,961,123 discloses a method and apparatus for etching an optical servo pattern on a disk using a single focused beam of light energy. The magnetic disk is placed on a platen and rotated. A beam of light is focused to a small spot on the spinning data storage disk. The focused beam has sufficient intensity to ablate the disk surface at the spot, thereby reducing the reflectivity of the surface at that spot. As the disk rotates, a groove is produced. The beam can be left on during an entire revolution to produce a continuous groove, or it can be modulated on and off through one revolution to produce a stitched pattern of non-continuous grooves.\nIn systems and methods in which the optical servo pattern is etched using laser energy, the width of the etched grooves that define each servo track is a function of the energy density delivered by the incident beam to the focused spot relative to the ablation threshold of the media and the focused spot size.\nTypically, the groove width in optical servo patterns is on the order of micrometers and must be maintained within tight tolerances. For a single servo track, the energy density at the focused spot and, therefore, the width of the groove (or grooves, with a stitched pattern) can be held constant simply by rotating the disk at a constant angular velocity. As the incident beam is moved radially on the disk surface to etch servo tracks at other radii, the change in radius results in a proportional change in the linear velocity of the disk surface at those radii. Therefore, if the disk rotates at a constant angular velocity, the energy density delivered to the surface of the disk will vary at different radii. To compensate for the varying energy density, it may be desirable to vary the beam intensity based on the linear velocity of the disk at different radii.\nOne disadvantage of the known systems and methods for laser etching of optical servo patterns is the limitation of producing a single track in an optical servo pattern at one time. As a result, the single beam of laser energy must be traversed over essentially the entire surface of the magnetic data storage disk to produce the entire optical servo pattern. That limitation can reduce throughput in the systems used to manufacture the magnetic data storage disks, thereby increasing the manufacturing costs.\nAs for the magnetically-encoded servo patterns, the magnetic nature of the patterns may preclude bulk erasing and reformatting by users because such actions could irreversibly destroy the magnetic servo pattern. Furthermore, the equipment required to write magnetic servo patterns on magnetic data storage tapes is costly and can only operate at relatively low speeds, thereby limiting throughput.\nThe present invention provides methods and systems for laser etching of optical servo patterns on magnetic data storage media using two or more beams of laser energy produced from a single source of laser energy to produce a servo pattern on the magnetic data storage media. By using two or more etching beams, the time required to produce a servo pattern on the magnetic data storage media can be significantly reduced. Alternatively, each servo track in the servo pattern can be written more than once.\nThe servo patterns thus formed can be read optically or they may be read magnetically using magnetic overwriting (if the servo pattern is formed in a magnetic coating on the media). In either case, the servo patterns are either permanently formed in the media when read optically, or they can be recreated after bulk erasing if they are provided using magnetic overwriting. In yet another alternative, the servo patterns may be read both magnetically and optically, with the magnetic and optical reading occurring simultaneously or sequentially.\nIn one aspect, the present invention provides a method of laser etching a servo pattern on magnetic data storage media by providing a source beam of laser energy; separating the source beam of laser energy into two or more etching beams; directing the etching beams onto the magnetic data storage media, whereby at least two servo tracks in the servo pattern are written simultaneously on the magnetic data storage media.\nIn another aspect, the present invention provides a method of laser etching a servo pattern on a magnetic data storage disk by providing a source beam of laser energy; separating the source beam of laser energy into two or more etching beams; directing the etching beams onto a magnetic coating on the magnetic data storage disk, wherein the etching beams remove at least a portion of the magnetic coating in ablated regions defined by the servo pattern; and rotating the magnetic data storage disk relative to the etching beams, whereby at least two servo tracks in the servo pattern are written simultaneously on the magnetic data storage disk.\nIn another aspect, the present invention provides a method of laser etching a servo pattern on a magnetic data storage tape by providing a source beam of laser energy; separating the source beam of laser energy into two or more etching beams; directing the etching beams onto a magnetic coating on the magnetic data storage tape, wherein the etching beams remove at least a portion of the magnetic coating in ablated regions defined by the servo pattern; and translating the magnetic data storage tape relative to the etching beams, whereby at least two servo tracks in the servo pattern are written simultaneously on the magnetic data storage tape.\nThese and other features and advantages of the present invention are described more completely below in connection with the illustrated embodiments presented.\nFIG. 1 is a perspective view of one laser servo writing system according to the present invention.\nFIG. 2 is a diagram of one laser servowriting system used to form servo patterns on magnetic data storage tape.\nFIG. 2A is an enlarged plan view of a portion of magnetic data storage tape including a servo pattern formed thereon.\nFIG. 2B is an enlarged cross-sectional view of the tape of FIG. 2A, taken along line 2B—2B in FIG. 2A.\nFIG. 3 is a schematic diagram of one beam splitting device for use in laser servo writing systems according to the present invention.\nFIG. 4 is a diagram illustrating the respective polarization axes of a source beam and a Wollaston prism.\nFIG. 5 is a schematic diagram of an alternate beam splitting device for use in a laser servo writing system according to the present invention.\nFIG. 6 is a schematic diagram of another alternate beam splitting device relying on a diffractive optical element for use in a laser servo writing system according to the present invention.\nFIG. 7 is a schematic diagram of another alternate beam splitting device relying on a holographic optical element for use in a laser servo writing system according to the present invention.\nFIG. 8 is a diagram of another system and method according to the present invention in which a source beam is used to etch servo patterns on two different magnetic data storage media simultaneously.\nThe present invention provides methods and systems for producing etched servo patterns on magnetic data storage media. The servo patterns thus formed can be read optically or the servo patterns may be read magnetically using an overwritten magnetic signal (if the servo pattern is formed in a magnetic coating on the media). Alternatively, the servo patterns may be read both optically and magnetically, with the optical and magnetic reading occurring simultaneously or sequentially.\nOne laser servo writing system is illustrated in FIG. 1 as operating on a magnetic data storage disk 10 to form an optical servo pattern 12 on one surface thereof In the illustrated system, the disk 10 preferably rotates about an axis of rotation 14 to provide concentric tracks as discussed above. The system also includes a source 20 of laser energy and a beam splitting device 30 which preferably splits the source beam 22 produced by the laser source 20 into at least two etching beams 32 and 34 which are directed at the surface of the disk 10 to form the optical servo pattern 12 thereon. By rotating the disk 10 about axis 14, the optical servo pattern 12 can be formed on the surface of the disk 10 by traversing the etching beams 32 and 34 across the surface of the disk 10, preferably in a generally radial direction.\nMovement of the etching beams 32 and 34 may depend on the spacing between the focused etching beams 32 and 34. For example, if the focused etch beam spacing is equal to the spacing or pitch of the servo tracks in the servo pattern, then the beam splitting device 30 can be stepped across the surface of the disk 10 in increments equal to the beam spacing times the number of etching beams to produce a plurality of concentric servo tracks on the circular media 10.\nAlternatively, however, the spacing between focused etching beams 32 and 34 can be some integer multiple of the servo track pitch. The beam splitting device 30 can then be stepped in increments equal to the servo track pitch until all of the servo tracks between the focused etching beams were formed, after which the beam splitting device 30 would then be stepped a distance equal to the focused etch beam spacing plus one additional servo track pitch spacing to form another set of servo tracks, etc.\nThe above methods could provide a servo pattern in which the servo tracks were etched once. It may alternatively be desirable to move or step the beam splitting device 30 in smaller increments equal to the servo track pitch such that each servo track pattern is written two or more times. For example, etch beam 32 may form a pattern that is then overwritten by the other etch beam 34. Alternatively, each of the beams 32 and 34 could overwrite their own patterns.\nAdvantages of writing a servo pattern more than once (or overwriting a servo pattern) can include the formation of servo track features that have a larger aspect ratio (depth:width) than those obtained in servo patterns that are written once. Control over width is important to conserve real estate on the surface of the media 10. The overwritten servo patterns may also offer improved contrast as compared to servo patterns that are written only once.\nMethods of accomplishing improved contrast without overwriting would typically require increasing beam power while, at the same time, reducing spot size to account for thermal damage to the materials surrounding the spot. Smaller spot sizes are, however, undesirable because they cause reductions in depth-of-focus, making it more difficult to keep the spot focused on the media. Although a single beam could be used to overwrite a servo pattern in multiple passes, such a process would likely increase cycle time significantly.\nIn any overwriting process, the laser energy delivered in the second, third or any successive writing, should be delivered after the thermal energy from the earlier writing has sufficiently dissipated to reduce or prevent increases in the size of the ablated area. If the energy from the earlier servowriting has not sufficiently dissipated before successive servowriting, the ablation threshold could be exceeded over a larger area in the successive writing steps, causing undesirably large increases in the size of the ablated areas on the media. By using multiple beams, however, the overwriting can be accomplished with sufficient time between “writes” to allow the thermal energy from earlier writing to dissipate without significantly slowing the servowriting process.\nFIG. 2 illustrates one system for providing a servo pattern on magnetic data storage media in the form of tape. The system includes a source 120 of laser energy and a beam splitting device 130 that preferably splits the beam of laser energy from the source 120 into at least two etching beams 132 and 134 that are directed onto the tape 110. The tape 110 is preferably moved relative to the etching beams 132 and 134 to produce the desired servo pattern on the tape 110.\nFIG. 2A is an enlarged plan view of a data storage media 110′ after processing by one of the systems described above. The media 110′ includes one servo pattern 112′ formed on at least one surface thereof. FIG. 2B is an enlarged cross-sectional view of the media 110′ taken along line 2B—2B in FIG. 2A further illustrating the regions 114′ of the magnetic coating 116′ on the media substrate 118′ ablated by the laser energy from the etching beams 132′ and 134′. It will be understood that the locations of the magnetic coating and the substrate could be reversed, in which case the servo pattern 112′ would be located in the substrate 118′.\nThe servo pattern 112′ illustrated in FIGS. 2A and 2B represents only one example of such a pattern and that other patterns, as well as variations in the size and shape of the ablated regions, could be used in connection with the present invention.\nAlso, it should be understood that although the magnetic coating and substrate are illustrated as homogenous layers, one or both of the magnetic coating and substrate could be provided as composites of multiple layers of the same or different materials. For example, the substrate may include a base layer of, e.g., polyester, coated with non-magnetic materials on one or both sides. Such a composite is considered to be included within the term “substrate” as used in connection with the present invention. Furthermore, multiple magnetic coatings could be provided on the substrate, with at least some of the magnetic coatings being separated by non-magnetic layers. In addition, the substrate could be provided with magnetic coatings on both of its major sides. Other variations in the exact construction of the media used in connection with the present invention will be known to those skilled in the art of magnetic data storage.\nThe servo patterns etched into the magnetic data storage media (disk or tape) may be read optically or they may be read magnetically. If the servo patterns are to be read optically, they may be formed on any appropriate surface of the media. For example, the servo patterns may be formed in a magnetic coating on the media, or they may be formed on another surface, e.g., in the substrate. Alternatively, the servo pattern may be formed in another coating provided on the media that is selected for its ability to provide an optical servo pattern with enhanced contrast (e.g., a material that provides high contrast).\nIf the servo patterns are to be read optically, uniformity in power or intensity between the etching beams may be particularly important to provide the desired contrast required to ensure proper reading of the optical servo pattern. In addition to power uniformity, the focused spot size can also affect the depth and width of the ablated regions. Variations in contrast between tracks on the media can cause off-track positioning errors of the read/write head. The magnitude of the off-track errors will depend, in part, on the design of the optical servo system employed by the data storage drive. If the off-track errors are large enough, correctable soft errors may occur in the electromagnetic data in addition to uncorrectable hard errors which can cause corruption of the recorded data. These problems may be exacerbated by moving media between different drives and/or changing environmental conditions.\nTo reduce contrast variation and the resulting positioning errors, power uniformity between the beams is desired, for example, it may be desirable that the power variations between maximum intensity and minimum intensity of the etching beams be about 10% or less, more preferably about 5% or less, and even more preferably about 2% or less.\nIf the servo pattern is to be read magnetically, the servo pattern is formed in a magnetic coating that is magnetically overwritten such that the servo pattern can be magnetically read. Servo patterns formed by etching magnetic coatings are discussed in commonly assigned, copending. U.S. patent application Ser. No. 09/251648 filed on even date herewith, (Attorney Docket No. 53353USA4A). Servo patterns formed by etching magnetic coatings rely on electromagnetic modulation between alternating areas of ablated magnetic coating and unaffected magnetic coating. That electromagnetic modulation could then be used to provide the desired servo information needed to accurately locate the read/write heads during data storage and retrieval.\nThe etched areas in the magnetic coating may exhibit reduced magnetic moments by removing or destroying at least a portion of the magnetic material in the coating to provide electromagnetic modulation and/or they provide the modulation by varying the separation between the reading magnetic core and the magnetic coating remaining after ablation. Regardless of the cause of the electromagnetic modulation caused by etching, the signal modulation should be significant enough to be accurately detected by a magnetic core on, e.g., a magnetic data storage read/write head. As a result, the exact dimensions of the etched regions can vary based on a number of factors including, but not limited to: the properties of the magnetic coating on the media, the properties of the core on the read/write heads, etc.\nRegardless of whether the servo pattern is formed on magnetic data storage media in the form of disks or tape, the present invention provides systems and methods for obtaining multiple etching beams from a source beam and applying those etching beams to the magnetic data storage media to form a servo pattern.\nFIG. 3 illustrates one embodiment of a beam splitting device useful in connection with the present invention. The device 230 preferably uses a Wollaston prism 240 to split a source beam 222 into two beams 242 and 244. A Wollaston prism 240 works by using a birefringent material, i.e., a material that exhibits different indices of refraction for light having different polarization orientations.\nThe device 230 also preferably includes a pair of identical lenses 250 and 252 located on each side of the Wollaston prism 240. The lenses 250 and 252 are spaced apart along a common axis by a distance equal to twice the focal length of one of the lenses. The Wollaston prism 240 is located between the two lenses 250 and 252, preferably closer to forward lens 252 than the rear lens 250.\nThe Wollaston prism 240 separates the source beam 222 into two output beams 242 and 244 which diverge at an angle β from each other towards the forward lens 252. Those output beams 242 and 244 are then refracted by the forward lens 252 to provide etching beams 232 and 234 that diverge at an angle β′. Moving the Wollaston prism 240 relative to the lenses 250 and 252 can vary the divergence angle β′ of the etching beams 232 and 234. That variation in divergence angle can then be relied on to change the distance between the focused spots formed after the etching beams pass 232 and 234 through a focus lens 260.\nIt is generally preferred that the Wollaston prism 240 be located closer to the forward lens 252 than the rearward lens 250. If the Wollaston prism 240 is closer to the forward lens 252, then further movement of the Wollaston prism 240 towards the forward lens 252 will generally cause the divergence angle β′ between the etching beams 232 and 234 to increase up to a maximum of β. Conversely, movement of the Wollaston prism 240 towards the rearward lens 250 (but still ahead of the midpoint between the lenses 250 and 252) will generally cause the divergence angle β′ between the etching beams 232 and 234 to decrease towards zero when the prism 240 is located at the midpoint between the lenses 250 and 252.\nAs discussed above, changing the divergence angle β′ between the etching beams 232 and 234 changes the distance between the focused spots formed by each beam after focusing by lens 260. Because the change in position of the prism 240 relative to the lenses 250 and 252 can be finely controlled, corresponding fine control can be exercised over the divergence angle β′ and, therefore, the spacing between focused spots on the media.\nWith the divergence angle between the etching beams 232 and 234 set, they can be focused on and traversed across the surface of a spinning magnetic data storage disk to provide a desired optical servo pattern or they can be directed onto the surface of a magnetic data storage tape to form a magnetic servo pattern in conjunction with magnetic overwriting.\nIt may be further preferred that the distance between the beam splitting device 230 (including lenses 250 and 252 and Wollaston prism 240) and the focus lens 260 be held constant while the distance between the laser source 220 be varied during movement of the etching beams 232 and 234 across the surface of the media (not shown). For example, the beam splitting device 230 could be mounted on a unitary moving sled 270 along with the focus lens 260 to provide the desired fixed spatial relationships. The sled 270 could then be moved relative to the laser source 220 as desired.\nFIG. 4 is a diagram illustrating operation of the Wollaston prism in connection with a source beam of laser energy 222 which preferably exhibits a linear polarization orientation 226 as seen in FIG. 4. The Wollaston prism itself exhibits an optical axis 246 which is preferably offset from the polarization orientation of the incoming light in source beam 222. The offset angle α between the polarization orientation 226 of the source beam 222 and the optical axis 246 of the Wollaston prism can vary, although one preferred orientation would have angle α at 45 degrees to provide even power distribution between the etching beams 232 and 234. It may, however, be desirable to provide uneven power distribution between the etching beams 232 and 234 (see FIG. 3) and in those situations angle α may not be equal to 45 degrees. The angle α between the polarization axis 226 and the optical axis 246 will preferably be greater than zero degrees and less than 90 degrees to effect some separation or division of the power in the source beam 222 to produce the output beams 242 and 244.\nAlthough the beam splitting device 230 utilizes only a single Wollaston prism 240, it will be understood that multiple Wollaston prisms 240 could be used to provide more than two etching beams 232 and 234 which, in some instances, may be desirable to further increase the speed of the laser servo writing process.\nFIG. 5 illustrates another alternate beam splitting device for use in the systems and methods according to the present invention. The device 330 includes a pair of mirrors 340 and 342. The first mirror 340 is preferably a partially reflective, partially transmissive beam splitting mirror which reflects a portion of the source beam 322 of laser energy incident thereon to form an etching beam 332 and transmits a portion of the beam to the second mirror 342 which then reflects that portion of the beam to form a second etching beam 334. The beam splitting mirror 340 is preferably capable of accurately transmitting a desired percentage of the laser energy and reflecting a desired percentage of the incident laser energy from source beam 322. It may typically be preferred that the beam splitting mirror 340 reflect substantially 50% of the incident energy and transmit substantially 50% of the incident energy. It may also typically be preferred that the second mirror 342 reflect substantially all of the laser energy incident thereon to form the second etching beam 334.\nThe divergence angle β″ between etching beams 332 and 334 can be controlled by the mirrors 340 and 342. Changes in the angle β″ cause changes in the distance between the focused spots formed after the etching beams 332 and 334 pass through the focusing lens 360. Furthermore, even power distribution between the two etching beams 332 and 334 also requires that the beam splitting mirror 340 be consistently accurate in the portions of light which it transmits and reflects.\nAlthough not depicted, it will be understood that more than one beam splitting mirror could be used in a device similar to 330 to provide more than two etching beams 332 and 334 from a single source beam 322. In such a system, the percentage of energy transmitted versus the percentage of energy reflected from each of the beam splitting mirrors should be carefully controlled to provide etching beams with the desired relative amounts of energy.\nFIG. 6 illustrates another beam splitting device 430 for splitting a source beam 422 into two or more etching beams. The device 430 preferably employs a diffractive optical element 440, e.g., a diffraction grating or some other diffractive element, and a lens 442 that combine to split the source beam 422 into a plurality of etching beams 432, 434 and 436.\nAlthough a diffractive optical element 440 can be designed to produce almost any number of beams, some multiples are preferred because of the tolerances required to manufacture the diffractive optical element 440 and the power uniformities that can be practically achieved between the etching beams. In addition, other factors affecting the number of beams produced include the amount of power available from the source beam, the efficiency of the diffractive optical element and the power required for each of the etching beams to cause ablation of the media.\nWhere the diffractive optical element 440 is a diffraction grating and the servo pattern is to be read optically using contrast, it may be preferred that the primary diffraction orders (i.e., the zero and first orders which produce the etching beams) exhibit the desired power uniformities discussed above. It may further be preferred that the power of any individual extraneous order (e.g., second, third, etc.) beams produced have less than about 15% of the power of the etching beams produced by the primary order diffraction. Limiting the power in the non-primary order beams can reduce the problem of undesired ablation or other damage adjacent to the regions etched by the primary order etching beams.\nThe spacing between the etching beams 432, 434 and 436 may preferably be matched to the desired pitch requirements of the desired servo track pattern. The resultant spacing between etching beams 432, 434 and 436 is dependent on the wavelength of the source beam 422, the optical properties of the diffractive optical element 440 and the optical properties of the focusing lens 442. Where the diffractive optical element 440 is a diffraction grating, the grating period can also affect the spacing between the etching beams 432, 434 and 436. With a diffraction grating, the etching beam spacing is typically controlled by the grating period because the wavelength of the source beam 422 and the focal length of the lens 442 are fixed due to other design considerations. For servo systems such as those used in the production of 120MB SUPERDISK™ diskettes, it is desirable to control the servo track pitch to about ±0.3 micrometers or less, more preferably about ±0.1 micrometers or less. Where the etching beam spacing is equal to the servo track pitch, the diffraction grating and lens preferably provide primary order diffraction beams that meet these requirements.\nAs one example, if the source beam 422 operates with a wavelength of 532 nanometers (such as that produced by a Diode Pumped Solid State (DPSS) laser) and the lens 442 has a focal length of 14.5 millimeters, the desired diffraction grating period required to produce an etching beam spacing of 20.4 micrometers (which is equal to the current servo track pitch used on 120MB SUPERDISK™ diskettes) is about 378 micrometers. Diffraction gratings can be obtained from a number of optical equipment suppliers, e.g., Digital Optics Corp., Charlotte, N.C. Donnelly Optics, Tucson, Ariz.; Rochester Photonics Corp., Rochester, N.Y.; and Teledyne Brown Engineering, Huntsville, Ala.\nFIG. 7 illustrates another beam splitting device 530 for splitting a source beam 522 into two or more etching beams. The device 530 preferably employs a holographic optical element 540 and a lens 560 that combine to split the source beam 522 into a plurality of etching beams 532 and 534.\nFIG. 8 schematically illustrates another system and method according to the present invention in which a single source 620 of laser energy produces a source beam 622. The source beam 622 is directed into a beam splitting device 630 to produce etching beams 632 a, 634 a directed at magnetic data storage media 610 a. The beam splitting device 630 also provides etching beams 632 b, 634 b directed at another magnetic data storage media 610 b. As a result, FIG. 8 illustrates both a system and method of simultaneously forming servo patterns on two different articles of magnetic data storage media 610 a, 610 b.\nAlthough a limited number of illustrative embodiments are described above, various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the scope of this invention, and it should be understood that this invention is not to be unduly limited to the illustrative embodiments and methods set forth herein.\n|Cited Patent||Filing date||Publication date||Applicant||Title|\n|US4315283||25 Apr 1979||9 Feb 1982||Victor Company Of Japan, Ltd.||High density recording system using side-by-side information and servo tracks|\n|US4459690||29 Jul 1983||10 Jul 1984||Rca Corporation||Multi-beam optical record and playback apparatus having an improved beam splitter|\n|US4597169 *||5 Jun 1984||1 Jul 1986||Standex International Corporation||Method of manufacturing a turnable microinductor|\n|US4633451 *||2 Jan 1985||30 Dec 1986||International Business Machines Corporation||Optical servo for magnetic disks|\n|US4961123 *||3 Jun 1988||2 Oct 1990||Insite Peripherals||Magnetic information media storage with optical servo tracks|\n|US5067039||20 Oct 1989||19 Nov 1991||Insite Peripherals, Inc.||High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media|\n|US5120927 *||12 Jun 1990||9 Jun 1992||Insite Peripherals, Inc.||High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media|\n|US5279775||10 Jun 1992||18 Jan 1994||Iomega Corporation||Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media|\n|US5283773||10 Jun 1992||1 Feb 1994||Iomega Corporation||Steering laser beam while etching optical servo tracks for magnetic disks|\n|US5499229||30 Nov 1994||12 Mar 1996||Sharp Kabushiki Kaisha||Track scanning for reproducing address information by crosstalk|\n|US5619521||14 Dec 1995||8 Apr 1997||Rohm Co., Ltd.||Semiconductor laser system|\n|US5689384||30 Jun 1994||18 Nov 1997||International Business Machines Corporation||Timing based servo system for magnetic tape systems|\n|US5793480 *||24 Sep 1996||11 Aug 1998||Phase Metrics, Inc.||Combined interferometer/ellipsometer for measuring small spacings|\n|US5910235 *||12 Sep 1997||8 Jun 1999||Western Digital Corporation||Etching and pipelined texturing of a substrate in a stationary vacuum deposition machine|\n|US5965215 *||17 Nov 1997||12 Oct 1999||Seagate Technology, Inc.||Method for laser texturing a landing zone and a data zone of a magnetic recording medium|\n|US6084740 *||1 Dec 1997||4 Jul 2000||Storage Technology Corporation||Optical servo system for a tape drive|\n|JPH033113A||Title not available|\n|1||\"Timing-Based Track-Following Servo for Linear Tape Systems,\" Barrett et al., IEEE Transactions on Magnetics, vol. 34, No. 4, Jul. 1998, pp. 1872-1877.|\n|Citing Patent||Filing date||Publication date||Applicant||Title|\n|US6741415 *||16 Feb 1999||25 May 2004||Quantum Corporation||Method of writing servo signal on magnetic tape|\n|US6791784 *||23 Mar 2001||14 Sep 2004||Imation Corp.||Diffraction-based monitoring of a patterned magnetic recording medium|\n|US6808648 *||8 Feb 2002||26 Oct 2004||Imation Corp.||Multibeam laser servowriting of magnetic data storage media|\n|US6961200 *||7 May 2002||1 Nov 2005||Quantum Corporation||Optical servo track identification on tape storage media|\n|US6980390 *||5 Feb 2003||27 Dec 2005||Quantum Corporation||Magnetic media with embedded optical servo tracks|\n|US7153366 *||22 Nov 2000||26 Dec 2006||Quantum Corporation||Systems and method for forming a servo pattern on a magnetic tape|\n|US7187515 *||5 Feb 2003||6 Mar 2007||Quantum Corporation||Method and system for tracking magnetic media with embedded optical servo tracks|\n|US7275302 *||9 Dec 2003||2 Oct 2007||Seagate Technology Llc||Method of forming a disc pack|\n|US7452476 *||10 Mar 2003||18 Nov 2008||Mtu Aero Engines Gmbh||Method for removing coating from power unit components and device for carrying out the method|\n|US7796353 *||9 Oct 2008||14 Sep 2010||Hitachi Global Storage Technologies Netherlands B.V.||Patterned-media magnetic recording disk with optical contrast enhancement and disk drive using optical contrast for write synchronization|\n|US7947920 *||30 Oct 2006||24 May 2011||Advanced Laser Separation International B.V.||Arrangement and method for forming one or more separated scores in a surface of a substrate|\n|US20020088770 *||8 Feb 2002||11 Jul 2002||Damer Lewis S.||Multibeam laser servowriting of magnetic data storage media|\n|US20020167751 *||7 May 2002||14 Nov 2002||Tzuochang Lee||Optical servo track identification on tape storage media|\n|US20030035238 *||20 Aug 2001||20 Feb 2003||George Bellesis||Optical to magnetic alignment in magnetic tape system|\n|US20040033311 *||10 Mar 2003||19 Feb 2004||Erwin Bayer||Method for removing coating from power unit components and device for carrying out the method|\n|US20050057836 *||5 Feb 2003||17 Mar 2005||George Saliba||Magnetic media with embedded optical servo tracks|\n|US20050057846 *||5 Feb 2003||17 Mar 2005||George Saliba||Method and system for tracking magnetic media with embedded optical servo tracks|\n|US20050122624 *||9 Dec 2003||9 Jun 2005||Seagate Technology Llc||Aligning servo patterns on different disc surfaces of a disc pack|\n|US20050224469 *||29 Nov 2004||13 Oct 2005||Cutler Donald R||Efficient micro-machining apparatus and method employing multiple laser beams|\n|US20060114948 *||29 Nov 2004||1 Jun 2006||Lo Ho W||Workpiece processing system using a common imaged optical assembly to shape the spatial distributions of light energy of multiple laser beams|\n|US20060262693 *||19 May 2005||23 Nov 2006||Seagate Technology Llc||Apparatus and method for writing multiple radial locations during a single rotation of a disk recording medium|\n|US20070099439 *||30 Oct 2006||3 May 2007||Advanced Laser Separation International B.V.||Arrangement and method for forming one or more separated scores in a surface of a substrate|\n|US20100091618 *||9 Oct 2008||15 Apr 2010||Hitachi Global Storage Technologies Netherlands B.V.||Patterned-media magnetic recording disk with optical contrast enhancement and disk drive using optical contrast for write synchronization|\n|US20110293907 *||12 Feb 2010||1 Dec 2011||Faycal Benayad-Cherif||Laser parameter adjustment|\n|WO2003091473A1 *||25 Apr 2003||6 Nov 2003||University Of Virginia Patent Foundation||Apparatus and method for high rate uniform coating, including non-line of sight|\n|WO2010120725A2 *||13 Apr 2010||21 Oct 2010||Applied Materials, Inc.||Hdd pattern apparatus using laser, e-beam, or focused ion beam|\n|WO2010120725A3 *||13 Apr 2010||13 Jan 2011||Applied Materials, Inc.||Hdd pattern apparatus using laser, e-beam, or focused ion beam|\n|U.S. Classification||216/65, 219/121.68, 216/22, 264/400, G9B/5.222, 219/121.6|\n|31 Jul 2000||AS||Assignment|\nOwner name: IMATION CORP., MINNESOTA\nFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DAMER, LEWIS S.;FARNSWORTH, STEPHEN W.;JACKSON, ROBERT S.;AND OTHERS;REEL/FRAME:011012/0464;SIGNING DATES FROM 19990606 TO 19990628\n|27 Sep 2005||FPAY||Fee payment|\nYear of fee payment: 4\n|9 Nov 2009||REMI||Maintenance fee reminder mailed|\n|2 Apr 2010||LAPS||Lapse for failure to pay maintenance fees|\n|25 May 2010||FP||Expired due to failure to pay maintenance fee|\nEffective date: 20100402","domain":"optical_engineering"}
{"url":"https://camera4all.com/products/fujinon-xs16x5-8a-xb8a-hd-for-sony-pdw-f355-pxw-x320-pmw-320-pmw-ex3-never-used","date":"2020-09-19T19:36:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400192783.34/warc/CC-MAIN-20200919173334-20200919203334-00613.warc.gz","language_score":0.9029942154884338,"token_count":281,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__222918950","lang":"en","text":"This is a practically new XS16X5.8A-XB8 HD Autofocus Zoom Lens. The lens was replaced with another lens with a longer zoom, therefore it was never mounted or used on the camera. There are no scratches or any kind of marks on front or rear glass.\nThis lens can be used on Sony PDW-F350, PDW-F355, PDW-F335, or PMW-320/PXW-X320 cameras without any adapters with full servo zoom, iris, and focus control. With an optional Fujinon ACM-18 adapter (available for extra $40) it can be used on Sony PMW-EX3 and PMW-300 cameras with autofocus feature. This lens has both manual and auto focus, unlike most 1/2\" HD lenses, which are manual focus only. Back focus on this lens is accomplished either through the camera menu or by pressing the F.f. button on the underside of the lens (if the camera menu does not have the back focus function).\nAll pictures displayed are of the items being sold. The item includes a 30-day warranty.\n- Fujinon XS16X5.8A-XB8A 16X AF/MF Zoom Lens\n- Lens hood\n- Front hood cover\n- Rear lens cover","domain":"optical_engineering"}
{"url":"http://keegancjlm892.total-blog.com/eye-surgical-treatment-7731369","date":"2018-05-21T20:11:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864544.25/warc/CC-MAIN-20180521200606-20180521220606-00320.warc.gz","language_score":0.9543797373771667,"token_count":1309,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__30669522","lang":"en","text":"Eye Surgical treatment\nEye Surgery has come to be a mainstream approach of vision improvement, as well as this write-up will discuss the advantages and also disadvantages of three different approaches being supplied to the clinical customer.\nLasik Eye Surgical procedure\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis and also is an eye surgical system which permanently fixes vision by eliminating a thin layer of the cornea. This procedure functions best on individuals with modest to high levels of myopia (nearsightedness), low to modest degrees of hyperopia (farsightedness) as well as astigmatism related to nearsightedness, and also who have thick corneas. It is the most popular medical vision correction method.\nPeople with normal eye view see items clearly since pictures are brought into an appropriate focal point by the cornea and also lens of the eye. Preferably, the cornea's curvature is uniformly matched to its length in a typical eye. People with astigmatism, nearsightedness or hyperopia have irregularly formed corneas, so the items seen are not focused correctly. LASIK adjustments corneal form by exact removal of corneal cells, and also by doing so fixes the eyes' focusing power.\nThere are, nonetheless, dangers to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this takes place, it is normally since the person had a pre-existing condition which should have averted the surgical treatment in the first place, such as maternity, cataracts, joint inflammation, diabetic issues, glaucoma, or lupus. People with big students are also bad prospects for LASIK. Dry eye syndrome will be aggravated by this procedure.\nA couple of patients grumble that they completely see \"ghost\" images, have obscured vision, lessened contrast as well as negative night vision. When LASIK wased initially presented, 5% of patients had post-operative grievances; nevertheless, improvements in the treatment have triggered this rate to go down to less compared to 1% if LASIK is performed by skilled practitioners and individuals are properly screened prior to surgical treatment. If troubles do take place, they can typically be resoved by a retreatment.\nFDA has approved LASIK laser eye surgery considering that 1998. While there are a great deal of satisfied patients, there are nonetheless no long-term studies concerning its results. Understand the constraints and the dangers of LASIK eye surgery before you sigh up for the treatment.\nThough much less well known, these tiny implants could improve vision in people with mild to moderate myopia without the threat of irreversible eye damage intrinsic in the tissue removal technique of LASIK. Intacs are semi-circular disks implanted in the cornea which extend it to presume a flatter form. Though slightly much less exact compared to LASIK, they are removeable and exchangeable, so if the patient has an unforeseen over- or under-correction, the implant can be removed and also an additional of a different size placed to obtain the preferred improvement. The implants lie beside the cornea, so the main visual area is totally intact as well as intact, and the toughness of the cornea is undiminished, making it a better alternative for pilots and those who participate in call sporting activities where eye injury is a possibility.\nIntacs are unsuitable for serious nearsightedness and also greater than small astigmatism (1.00 diopters), as the cornea can only be extended until now. If the Intacs are eliminated, vision go back to its preoperative browse this site degree. In addition to vision use this link modification, Intacs are additionally used to deal with keratoconus.\nIntacs are FDA approved and 10 year research studies have actually revealed no major problems with Intacs as well as very few patient grievances; however, due to the fact that the procedure takes more training compared to LASIK, there are fewer eye surgical procedure clinics supplying it. Nonetheless, the Intacs website provides a listing of specialists in each state, also a few in Canada, Europe as well as Mexico.\nDue to the fact that many people do not wish to run the risk of LASIK as well as Intacs could not aid those with severe vision troubles, intraocular lens implants (IOL) are a new alternative approved by the FDA in 2004 to remedy modest to severe nearsightedness. The Craftsmen lens, manufactured by Ophtec, resembles the sort of lens implant used to recover vision following cataract eye surgery.\nThe new IOL, called the Craftsmen, is planned for only individuals that have 2.5 diopters or less of astigmatism.\nThe fabricated lens does not change the natural lens, however is put before it. The main problem located with the implant was the constant loss of endothelial cells in the corneas of clients that obtained the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are crucial in keeping the cornea clear. A three-year study showed a regular constant loss of endothelial cells of 1.8 percent a year. At this moment, nobody can forecast whether this loss will continue at the very same rate forever, or perhaps its effect on corneal feature.\nTo lessen long-lasting impacts of the device on the corneal endothelium, the FDA is calling for that the new lenses be classified to define that they must just be dental implanted in people whose corneal endothelial cells are thick adequate to withstand minor cell loss.\nMore serious problems were few: retinal detachment (0.6%), cataract development (0.6%), as well as corneal swelling (0.4%). The FDA is requiring Ophtec to conduct a five-year follow-up study of its dental implant individuals to much better examine the post-surgical occurrence of cataract advancement, retinal detachment and also other ophthalmic conditions.\nThe Artisan lens is planned to be a long-term implant.Though it can be gotten rid of surgically, vision might not constantly return to just what it was prior to getting the lens. Since it does not influence astigmatism, individuals with this issue could still need glasses.","domain":"optical_engineering"}
{"url":"https://anotherfirearmblog.com/meet-otacon-night-vision-a-south-africans-affordable-path-to-premium-military-grade-night-vision/","date":"2023-12-04T16:08:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00497.warc.gz","language_score":0.874271810054779,"token_count":2211,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__176293580","lang":"en","text":"For years, the night vision realm has been tightly gripped by a handful of industry titans. Their exorbitant pricing, influenced in part by rigid US export controls on top-tier night vision equipment and further exacerbated by currency fluctuations, meant that high-quality night vision was a distant dream for most South Africans.\nEnter OTACON Night Vision.\nThis innovative brand is dismantling the status quo, introducing military-standard night vision to the market at prices that resonate with South Africans. Introducing the OTACON-31 and OTACON-14A: devices engineered to military specifications but priced for the everyday enthusiast.\nIn the past, a quality night vision device would set a South African back by over R160,000. Anything cheaper? Essentially, you’d be investing in an overpriced and glorified child’s toy.\nSo, what separates a professional night vision device from a mere novelty item?\nModern consumer night vision often employs rudimentary Gen-1 technology that primarily magnifies its own infrared output (that is detectable by other night vision devices), boasting a light amplification of around 1,000 times. In stark contrast, authentic, top-tier night vision devices amplify light over 10,000 times, rendering infrared illumination obsolete and ensuring users aren’t detectable by other night vision devices.\n|Consumer Grade Gen 1 Night Vision||Milspec Gen 2+ Night Vision|\n|Image Quality||Moderate to low; can be grainy and blurry||High; crisp, clear, and defined|\n|Luminance Gain (the factor by which the device amplifies available light to produce a clearer image)||Typically 1,000 to 3,000||Typically 10,000+|\n|Figure of Merit (FoM: a metric that combines the resolution and signal-to-noise ratio to gauge the overall performance and clarity)||100-300||1,600+|\n|Light Requirement and visibility range||Severely limited due to dependency on IR illuminator. Usually less than 50m.||Uses ambient light; visibility as far as the natural eye can see provided there is enough light from stars, or moon etc.|\n|Battery Life||Shorter due to heavy reliance on IR. Less than 10 hours||20 hours + or 40 hours with included battery pack, optimized for extended field operations|\n|Applications||Recreational activities||Military, security, advanced surveillance, law enforcement. Especially useful in rural/farm security|\nTo sum it up, consumer-grade Gen-1 night vision devices often present moderate to low image quality that can appear grainy or blurry, with luminance gains as low as 1,000 and a Figure of Merit (FoM) ranging from 100-300. Their functionality is heavily reliant on IR illuminators, limiting their range to typically less than 50m and resulting in shorter battery life (below 10 hours). These devices are best suited for recreational purposes.\nIn contrast, Milspec Gen 2+ night vision offers superior image clarity, with luminance gains exceeding 10,000, a FoM of 1,600+, and the ability to capitalize on ambient light sources, giving visibility comparable to the natural eye. With an extended battery life of 20 hours (or even 40 with specific battery packs), they’re designed for professional applications such as military operations, advanced surveillance, and law enforcement, proving invaluable for rural or farm security scenarios.\nConventional high-end night vision devices vs. OTACON\nCurrently, one of the cheapest alternative options is the AGM NVG-50 at just over R160,000, or the DMS-15 at more than R171,000!\nThe OTACON-31, AGM NVG-50, and DMS-15 are all top-tier night vision devices, but when it comes to delivering the most bang for your buck, the OTACON-31 takes the lead.\n|Min. FOM||1,700||*No min guarantee||1,300|\n|Min. Resolution (Sharpness)||64lp/mm||54lp/mm||57lp/mm|\n|Min. Gain (the factor by which the device amplifies available light to produce a clearer image)||10,000 +||*No min guarantee||*No min guarantee|\n|Min, SNR (how clear an image is compared to background noise)||26||*No min guarantee||23|\n|Lead time||Ready to ship (2-3 days for courier)||6-8 weeks!||12-16 weeks!|\nFirstly, the OTACON-31, priced at R138,000, is more affordable than its competitors, making it a cost-effective choice for those seeking premium quality without the heftier price tags of the AGM NVG-50 or DMS-15.\nFigure of Merit\nWhen it comes to specifications, FOM (Figure of Merit) is a crucial metric in evaluating the performance of night vision devices. A higher FOM typically translates to a clearer and brighter image. The OTACON-31 boasts a minimum FOM of 1,700, which surpasses the DMS-15’s 1,300. The AGM NVG-50, on the other hand, offers no minimum FOM guarantee.\nResolution, measured in line pairs per millimeter (lp/mm), indicates the clarity of the image. The OTACON-31 leads with a minimum resolution of 64lp/mm, outclassing the AGM NVG-50’s 54lp/mm and DMS-15’s 57lp/mm.\nGain measures the device’s ability to amplify light. The OTACON-31 guarantees a minimum gain of over 10,000, ensuring outstanding light amplification for clearer images in low-light conditions. Both the AGM NVG-50 and DMS-15 don’t offer a minimum gain guarantee.\nSignal-to-noise ratio (SNR)\nSignal-to-Noise Ratio (SNR) is another pivotal factor, highlighting the clarity of the image under low-light conditions. With a minimum SNR of 26, the OTACON-31 outperforms the DMS-15’s 23, while the AGM NVG-50 does not provide a guarantee.\nLastly, in terms of availability, the OTACON-31 is ready to ship with a quick 2-3 day courier lead time. In contrast, potential buyers of the AGM NVG-50 and DMS-15 would have to wait 6-8 weeks and a staggering 12-16 weeks, respectively.\nIn a nutshell\nThe OTACON-31 not only offers superior specifications across the board but also comes at a more reasonable price and shorter lead time, making it the top choice for those in the market for an exceptional night vision device.\nHow are Otacon Night Vision Devices so Much More Affordable, without sacrificing quality?\nOtacon Night Vision Devices have redefined affordability without compromising on quality, and here’s how they’ve achieved it:\n- Emerging Manufacturers: By partnering with new image intensifier producers, notably NNVT, located outside the US, OTACON Night Vision accesses cutting-edge yet economically efficient technology.\n- Sourcing parts from outside the US not only sidesteps traditionally high-cost American manufacturers but also negates the substantial US export licensing fees and associated time delays. The result is a swift and cost-effective supply chain that delivers top-tier performance without burdensome overheads.\n- Focused Spending: Instead of pouring funds into flashy branding, aggressive marketing campaigns, and ornate packaging, OTACON Night Vision channels its resources directly into the device itself. The result? A top-tier product that doesn’t carry the additional costs of unnecessary frills. Every rand spent aims to enhance the user experience directly.\nBinocular vs. Monocular: Understanding the OTACON-31 and OTACON-14A\nShared Core Technology\nBoth the OTACON-31 dual-tube and the OTACON-14A single-tube night vision devices are equipped with identical image-intensifying technology and optics. Despite their structural differences, their ability to amplify available light and present a clear nocturnal image is consistent across both models.\nOTACON-31: The Binocular Advantage\nFeaturing a dual-tube system, the OTACON-31 provides vision for both eyes, translating to a broader field of view and enhanced depth perception. This binocular setup is invaluable for tasks demanding acute spatial awareness like navigating challenging terrains or nocturnal driving. Offering a viewing experience that closely mirrors human’s natural binocular vision, the OTACON-31 ensures comfort during extended use.\nOTACON-14A: The Monocular Flexibility\nThe OTACON-14A operates as a monocular device, using a single intensifier tube to bolster vision in one eye while the other remains natural. Lighter, more compact, and budget-friendlier than the OTACON-31, its design boasts adaptability. Whether mounted on a weapon, helmet, or held by hand, the OTACON-14A shines in scenarios that necessitate toggling between enhanced and natural vision or retaining ambient awareness.\nIdentical Image-Intensifying Capabilities\nDespite their differing configurations, the foundational night vision technology remains consistent between the OTACON-31 and OTACON-14A. If one visualizes the OTACON-31 as night vision binoculars, the OTACON-14A resembles one-half of that pair, ensuring equally impressive image quality, optics clarity, and low-light performance in both models.\nOTACON Night Vision is transforming the landscape of night vision accessibility for South Africans.\nWhile the realm was once dominated by select industry behemoths, with prohibitive prices driven by rigid US export controls and exacerbated by currency challenges, OTACON is heralding a new era. With innovative sourcing strategies, notably partnering with emerging manufacturers like NNVT, and an emphasis on product quality over flashy branding, they’ve successfully brought military-standard night vision devices within reach of everyday enthusiasts.\nBoth the OTACON-31 and OTACON-14A devices, despite their distinct configurations, epitomize this commitment to quality, offering unparalleled image-intensifying capabilities. Ultimately, for those seeking top-tier night vision performance without the traditionally exorbitant price tags or prolonged wait times, OTACON stands as the go-to choice.","domain":"optical_engineering"}
{"url":"https://www.boystownpediatrics.org/KnowledgeCenter/pediatricadvisor/AdvisorInfo/pa/pa_sunglass_oph.aspx","date":"2017-08-17T23:13:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886104172.67/warc/CC-MAIN-20170817225858-20170818005858-00498.warc.gz","language_score":0.9488474130630493,"token_count":307,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__39532213","lang":"en","text":"Ultraviolet (UV) light can damage your eyes. Wearing the right kind of sunglasses outdoors may reduce your risk of eye damage from ultraviolet light. UV rays are as strong on cloudy days as on sunny days.\nUV light from the sun increases your risk for:\nUV protection is not related to how dark the lens is. Look for sunglasses that protect you from 100% of both UVA and UVB light. This includes those labeled as \"UV 400\". If the label says only \"blocks most UV rays\", the glasses will not protect your eyes.\nPolarized lenses reduce glare reflected from surfaces such as water or snow. However, they don't block UV light unless they are combined with a coating that blocks UV. Mirror coatings alone do not provide UV protection and should be combined with a UV-blocking coating.\nPhotochromic lenses are almost clear in low light and turn dark in bright light. They react to UV light and not to visible light. A car windshield blocks out most UV light, which means that photochromic lenses will not darken in the car. Ask your eye care provider about tint options.\nLens color does not affect how well sunglasses protect your eyes. Gray and brown are least likely to distort the colors you see. Skiers may choose yellow lenses to help reduce haze in low light.\nWide-brimmed hats may keep about 50% of UV rays from reaching the eyes, but your child should also wear sunglasses. Sunglasses are very important if your child:","domain":"optical_engineering"}
{"url":"https://sg11.nl/insights/detecting-illicit-trace-material/","date":"2024-02-21T08:49:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00262.warc.gz","language_score":0.9544298052787781,"token_count":481,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__182539775","lang":"en","text":"It took me a while of closely working with members of the original team at the University of Florida (UF) to really understand the physics behind the Delta R technology, and the final ‘aha’ only came when we were visited by the inventor of the technology, Dr. Hummel, and he explained it to me in his words.\nThe name Delta R already gives some of the idea away; we look at the difference (Delta) of the reflection (R) of a surface. The image below explains the technique visually.\nThe journey of Delta R technologyhttps://sg11.nl/insights/the-journey-of-delta-r-technology/\nThe principle of Delta R technology\nFirst, we need to send light towards a surface of which we want to capture the reflection. For this, we use a high-end light source that is incredibly stable because we need to make sure that any differences, we capture do not come from hardware fluctuations. We use a set of optics to manipulate the light into a line, convenient for scanning wide surfaces.\nWhat happens on the surface is that whatever is on there will absorb part of the light and reflect everything it does not absorb. This absorption tells us something about the substance, as it creates an absorption feature which we can use for identification.\nThe reflection is captured by our spectrometer, specifically designed for our application. Its function is to separate the information (different wavelengths, can also be seen as different colours) from the reflected surface onto the pixels of our camera. This information is then used by our software to calculate the difference between the image coming in and the image before that and running our algorithms on that information will result in a classification. Calculating the difference between two images means that we only see the difference in absorption between two parts of a surface. This gives us a single clear feature for a substance, while negative effects of backgrounds are minimized.\nThis in principle is how the Delta R technology works. It has proven itself to be capable of detecting very small amounts of substances. So small in fact, that we must think about methods to reliably make samples of amounts that are no longer visible with the naked eye.\nWorking on this technology means working with a large variety of expertise, from programming to chemistry, never having a dull moment and always having to keep learning to improve our product.","domain":"optical_engineering"}
{"url":"https://nancytranter.com/blog/chimerical-stygian-blue-and-hyperbolic-the-existence-of-impossible-colors/","date":"2021-11-27T11:18:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358180.42/warc/CC-MAIN-20211127103444-20211127133444-00045.warc.gz","language_score":0.9308038949966431,"token_count":1110,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__182097350","lang":"en","text":"The graphic below is an impossible colors test\nDefine Chimerical, Stygian Blue, Hyperbolic, What are these impossible colors? These forbidden colors have no basis in reality. Here is a little color theory tutorial.\nThe human eye can produce a phenomenon that has fatigued cone cells into enabling colors to be perceived in certain circumstances that would not be otherwise.\nThe chimerical definition is one that the colors don’t appear within the color space of human vision.\nAs the name suggests they are a construct of the mind. They can be created by inducing a natural process of the eye called color fatigue. If you stare at a color for a long time your eye will temporarily displace the colorspace by the opposing color. The reason the human eye can’t perceive these colors is that signals from the rods (light-dark) and cones (red, green, blue) interpret signals in an antagonistic manner termed the opponent process. So if you stare at yellow, then black, for a short time you will perceive that black to contain blue. The color you are seeing is out of the range of visible colors. It is a pitch black blue; thus it is deemed an impossible color. Above are some examples of chimerical colors to feast your eyes upon. Continue to stare (without shifting your eyes) at one of the many crosses as the image changes.\nWhen the image changes, the impossible colors should be revealed. Some people will see the colors more easily than others. The above image is on a 30-second delay which seems the best to view the chimera. The brightness of the device you are using to view the images will make a huge difference to the effectiveness, and also the effect will vary from person to person. The intensity of the effect increases with longer viewing durations. Chimerical colors don’t appear within the color space of human vision. They are a construct of the mind. They can be created by inducing a natural process of the eye called color fatigue. If you stare at a color for a long time your eye will temporarily displace the color space by the opposing color. So if you stare at yellow, then black, for a short time you will perceive that black to contain blue. The color you are seeing is out of the range of visible colors.\nChimerical colors include:\nThe stygian definition: these are simultaneously dark and impossibly saturated.\nFor example, to see “stygian blue”: staring at bright yellow causes a dark blue afterimage, then on looking at black, the blue is seen as blue against the black, but due to lack of the usual brightness contrast it seems to be as dark as the black. The eye retina contains some neurons that fire only in the dark. The figure below figure also shows how normal after-image colors are produced. (The “f/p” in this figure stands for fatigue/potentiation.) Look at the “Acquired f/p vectors” which show that when a particular color is stared at for a long time, the opponent cells become fatigued and tend towards the middle of the cube (towards the 50%, 50%, 50% point). Then when the eye glances away to a different color background, that vector starts at the new color and points to the after-image color (see the “Re-situated f/p vector”). This example shows that the after-image color for red is green. Churchland goes on to explain that this theory can predict that it is possible to create several after-image colors that would be impossible to see on real objects.\nThe following diagram shows how to create a blue after-image color that is darker than black (Stygian Blue)\nthese mimic the effect of glowing material, even when viewed on a medium such as paper, which can only reflect and not emit its light. For example, to see “self-luminous red”: staring at green causes a red afterimage, then on looking at white, the red is seen against the white and may seem to be brighter than the white.\nHyperbolic colors: These are impossibly highly saturated for example, to see hyperbolic orange :\nStaring at bright cyan causes an orange afterimage, then on looking at orange, the resulting orange afterimage seen against the orange background may cause an orange color purer than the purest orange color that can be made by any normally-seen light. Or, staring at something pure magenta in bright sunlight for two minutes or more, and then looking at green leaves, may result in briefly seeing an abnormally pure green afterimage.\nThe graphic below is an impossible colors test\nWhat’s the deal with purple?\nYou may have heard that purple is not a “real” color. While violets are spectral colors, meaning there is a single wavelength of light for various hues of “violet”, “purple” is a combination of blue and red. Your brain interprets it as “purple.”\nWhat resolution is the human eye? According to scientist and photographer Dr. Roger Clark, the resolution of the human eye is 576 megapixels.\ncheck out my graphic design section for more indepth information\nTools and resources for purchase:","domain":"optical_engineering"}
{"url":"https://dalen-europe.com/en/unic/78-smart-led-dalen-q50t.html","date":"2021-01-21T08:50:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703524270.28/warc/CC-MAIN-20210121070324-20210121100324-00181.warc.gz","language_score":0.8450887799263,"token_count":456,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__268685640","lang":"en","text":"Ceiling LED light Dalen Q50TW\n- Intelligent and economically light with dimming mode, sleep mode and Glare-free function\n- Made from high quality PMMA that means lightness, endurance and easy maintenance with high transmittance rate\n- Color temprature is 2800K～6000K: 6 levels adjustable with remote control or ecoCloud App\n- Luminosity in 270° guarantees perfect light spreading\n- Easy montage without changing your current elektroinstallation\n- Eye protection technology: no flickering, no ripple wave\n- Net weight: 3,9 kg\n- Input power: 50 W\n- Dimensions: Ø 600 x 600 x 80 mm\n- LED specification: Samsung 2835\n- Life Time: 40 000h\nColor temperature changing\nYou can change color temperature from Warm White over Nature White to Cool White (illustration image).\n2 800K - 3 500K: Warm white such as light at sunset. Ideal for relaxing activities or watching TV.\n4 500K - 5 000K: Natural White. This colour is like usual daylight. Perfect for common activities such as studying, playing with kids or for your work.\n5 000K - 6 000K: Cool white, colour is the same like light on bright sunny day. Most often used for studying, reading or activities that require concentration.\nSleep mode: For sweet sleeping. Brightness of the light is turned down on 50% of warm white and in 30 minutes will shut down automatically.\nNight Light: Unobtrusive light with ,,warm candle\" effect for sufficient orientation in your room at night. Input power in Night Light is only 1W - 3W.\nWall switching mode\nCeiling light Dalen remembers last mode (brightness and color tempretature), that was active before last switching off.\nWall switch control\nYou can change color temperature without remote control. ON-OFF-ON the light within 2 seconds changes lighting mode between Natural Light, Warm White and Night Light mode.\nCeiling light Dalen doesn´t emit light with 350nm that attract insect.\nDalen Light is equipped with rubber seal that prevents insect and dust intrusion to the lamp.","domain":"optical_engineering"}
{"url":"https://halo-ac3.de/halo-ac3/p5-p6/","date":"2024-02-26T12:07:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474659.73/warc/CC-MAIN-20240226094435-20240226124435-00840.warc.gz","language_score":0.8344165682792664,"token_count":1996,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__152143211","lang":"en","text":"The AMALi transmits Nd:YAG laser light pulses either upward (zenith configuration) or downward (nadir). The laser light interacts with and is changed by atmospheric constituents influencing the backscattered light intensity. The backscattered light is collected with an off-axis telescope mirror and directed onto the detection system. The detection of the two wavelengths 355 nm and 532 nm (the latter in both perpendicular and parallel polarisation mode) provides an information on existence, distribution, backscatter and depolarisation of aerosols and thin clouds in the troposphere. The applied 2-minute integration time results in a horizontal resolution range from 4.3 km to 12.4 km for a minimum of 130 km/h and a maximum of 370 km/h aircraft cruising speed over ground, respectively. The transient recorders register the backscattered light with a maximum sampling rate of 21 MHz corresponding to a range/height resolution of 7.5 m. The on-line quick look data evaluation allows an immediate interpretation.\nThe Microwave Radar/radiometer for Arctic Clouds (MiRAC-A) consists of a single vertically polarized Frequency Modulated Continous Wave (FMCW) cloud radar including a passive channel at 89 GHz. The cloud radar of MiRAC-A provides vertically resolved profiles of the equivalent radar reflectivity with a sensitivity of -50 dBZ at an altitude of 2 km with a 10 m vertical resolution and a transmitter power of 1.5 W.\nThe Airborne Imaging Spectrometer for Applications (AISA) Hawk instrument consists of a downward-viewing push broom sensor alignedacross the flight track to measure 2D fields of upward radiance. The push broom sensor contains 384 across-track pixels, where each pixel performs spectral measurementsbetween the wavelength range of 930 nm and 2550 nm in 288 channels. With a 36°fieldof view (FOV) and a sampling frequency of 20 Hz, the instrument has a spatial resolutionof 2 m, assuming a distance between aircraft and cloud of 1 km.\nThe AISA Eagle instrument is the second imaging spectrometer installed on Polar 5. Ituses a measurement approach similar to AISA Hawk but focuses on shorter wavelengthswith higher spectral and spatial resolution. With a single line push broom sensorconsisting of 1024 across-track pixels measurements of 2D fields of upward radiance areperformed in 488 channels covering a wavelength range between 400 nm and 970 nm.The FOV is 36.3°and delivers a spatial resolution below 1 m for a target at a distance of 1 km. During MOSAiC-ACA it was operated with a frame rate of 20 Hz to acquire an along-track spatial resolution comparable to that of AISA Hawk.\nThe Spectral Modular Airborne Radiation measurement sysTem, SMART-Albedometer, measures upward and downward spectral irradiances and radiances in the spectral range from 0.3 to 2.2 μm. The radiation is collected by optical inlets which are different for the radiance and the irradiance. The collected radiation is transmitted with fibre optical cables to spectrometers of different types. Between 0.3 to 1.0 μm the spectrometers have a spectral resolution (FWHM) of 2-3 μm. Both upper und lower sensor package are actively horizontal stabalized, which is necessary to accurately measure irradiance. The SMART measurements will be used to measure cloud top and surface albedo to quantify the solar energy budget in the Arctic atmosphere. Especially the cloud solar radiative forcing in dependence of surface albedo will be investigated. Spectral radiance from SMART will be used for cloud remote sensing retrieving cloud optical properites such as cloud otpical thickness, partical effective diameter and the cloud thermodynamic phase.\nA commercial Nikon DF camera is used in combination with a 180° fish-eye lense to measure the angular distribution of solar radiance in the lower hemisphere below the aircraft. The fish-eye camera is calibrated similar to SMART-Albedometer and provides images with high spatial resolution up to a frequency of 4 s. In combination with the SMART-Albedometer downward irradiance, the hemispherical-directional reflectivity distribution function (HDRF comparable to BRDF) can be derived. The measurements will be analyzed for sea ice surfaces as well as for clouds. The sea ice, snow HDRF will be characterized in dependence of sea ice fraction, snow cover and surface roughness. Measurements above clouds provide cloud thermodynamic phase and for liquid clouds, particle diameter by analyzing the backscatter directions with cloud bow and glory.\nThe Sun-Photometer is installed under a quartz dome of Polar 5 to derive the spectral aerosol optical depth. Therefore, it uses a filter wheel with ten selected wavelengths. The optics of the Sun-Photometer use an aperture with a field of view of 1° to measure the direct solar irradiance. Knowing the extraterrestrial signal the spectral optical depth of the atmosphere and the spectral optical depth of aerosol can be derived.\nAVAPS Lite dropsonde system using Vaisala RD-41 sondes to measure temperature with an accuracy of 0.1 °C, humidity with an accuracy of 2 %RH, pressure with an accuracy of 0.4 hPa. Winds are derived from GPS position measurements.\nThe microwave radiometer operated on Polar 5 is a Humidity And Temperature PROfiler (HATPRO). Usually, this instrument is looking upward when operated on ground. It has seven channels along the water vapor absorption line at 22.24 GHz and seven close to the oxygen absorption complex at around 60 GHz. The humidity channels can be used to retrieved humidity profiles, integrated water vapor, and liquid water path, wheres the ones in the oxygen complex can provide information on the temperature profile. In addition to measure atmospheric parameters, it can be used to derive the microwave emissivity of ocean and sea ice.\nThe Polar-Nephelometer is able to measure the phase function of ambient aerosol particles.\nThe Precipitation Imaging Probe (PIP) measures particle sizes in a range from 100 µm to 6.2 mm using an optical array with 64 elements.\nThe Cloud Imaging Probe (CIP) is an optical spectrometer and measures cloud particle sizes in a range from 25 µm to 1550 µm. In addition it measures the liquid water content in a range from 0.01 g/m3 to 3 g/m3.\nThe 2D-S is an optical imaging instrument and records two dimensional images of cloud particles with two 128 photodiode arrays.\nThe cloud combination probe (CCP) combines a cloud imaging probe (CIP) and a cloud droplet probe (CDP) and covers a size range between 2 µm and 1000 µm.\nThe Nevzorov probe measures the total and liquid water content in a range from 0.003 to 3 g m−3.\nThe Counterflow Virtual Impactor (CVI) inlet is developed for the in-situ collection of cloud droplets and ice particles by simultaneous discrimination of non-activated particles.\nThe condensation particle counter (CPC) measures the cloud particle residual and ambient aerosol particle number concentration for diameters larger 10 nm.\nThe ultra-high sensitivity aerosol spectrometer (UHSAS) measures the cloud particle residual and ambient aerosol particle number size distribution in a diameter range between 60 and 1000 nm.\nThe optical particle counter (OPC) measures the cloud particle residual and ambient aerosol particle number size distribution in a diameter range between 0.25 and 10 µm.\nThe particle soot absorption photometer (PSAP) measures the absoption coefficient of cloud particle residual and ambient aerosol particles, which can be transferred into a BC mass concentration.\nThe single-particle soot photometer (SP2) quantifies the concentration and size distribution of refractory black carbon. It is based on a laser-induced incandescence technique that allows for quantifying the mass of refractory BC particles.\nThe Aircraft-based Laser Ablation Aerosol Mass spectrometer (ALABAMA) is a bipolar-ion single particle analysis instrument that samples aerosol particles and cloud particle residuals with diameters ranging from 200 nm up to 3 µm. The ALABAMA can identify size and bipolar mass spectra of these particles.\nThe Aerolaser AL5002 measures the carbon monoxide (CO) mixing ratios based on vacuum ultraviolet- (VUV) fluorimetry by using the excitation of CO at 150nm.\nThe LI-7200 is a commercial high precision Non Dispersive Infrared (NDIR) CO2/H2O Analyzer from LI-COR Biosciences GmbH which was modified for aircraft operations. The mixing ratios of CO2 and H2O are determined via the infrared absorption ratios of both gases measured within the absorption sample cell.\nThe 2B Technologies Dual Beam Ozone Monitor 205 is designed to enable accurate measurements of atmospheric ozone over a wide dynamic range extending from a limit of detection of 1 ppbv to an upper limit of 100 ppmv based on the well-established technique of absorption of ultraviolet light at 254 nm.\nHigh Volume Aerosol Sampler (HERA), designed for aircraft operations. HERA collects aerosol particles on polycarbonate pore filters. A shrouded inlet diffuser is used to get the particles into the aircraft.\nNose Boom is equipped with a five-hole probe to perform high frequency measurements of 3D wind vector, temperature and humidity, which are needed to calculate e.g. the turbulent kinetic energy flux.","domain":"optical_engineering"}
{"url":"https://asq.org/quality-progress/articles/the-download-an-up-close-look?id=6543248b9c654b9584785b3fb9033397","date":"2023-12-10T17:48:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102612.80/warc/CC-MAIN-20231210155147-20231210185147-00560.warc.gz","language_score":0.8784729242324829,"token_count":112,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__252718687","lang":"en","text":"The Download: An Up-Close Look\nSmart technologies that automate visual inspection can overcome human limitations\n- Quality Progress\n- March 2023\n- Volume 56 Issue 3\n- pp. 43-45\n- Tarantino, Anthony G.\n- Santa Clara University, Santa Clara, CA\nAutomated visual inspection using deep learning has proven that it can overcome the limitations of human inspection and do so at lower costs and faster times than traditional manual methods. Examples of successful applications can be found in virtually every industry and in all stages of manufacturing and distribution.","domain":"optical_engineering"}
{"url":"https://www.easiio.com/web_config?config=9a7eb3bd-2531-616d-6ae3-c80f8101a93f","date":"2020-11-29T04:11:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141196324.38/warc/CC-MAIN-20201129034021-20201129064021-00014.warc.gz","language_score":0.916069507598877,"token_count":109,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__75589906","lang":"en","text":"Neuvition is a high-tech company focused on development of solid-state HD video LiDAR sensors, supporting software and cloud services. The solid-state 3D HD video LiDAR are mainly used in the fields of autonomous driving, ADAS, security, machine vision, 3D imaging and UAV.\nNeuvition provides online help that is ready to jump in to help our potential customers with any questions they have. Just use the chat box to chat with our team member. Software download also available on the download page","domain":"optical_engineering"}
{"url":"http://johnnyphpv373.total-blog.com/2-concerns-individuals-do-not-really-realize-relating-to-lasik-eye-surgical-treatment-11551017","date":"2019-01-23T07:52:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584203540.82/warc/CC-MAIN-20190123064911-20190123090911-00293.warc.gz","language_score":0.9537372589111328,"token_count":898,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__149734076","lang":"en","text":"2 Concerns Individuals Do Not Really Realize Relating To LASIK Eye Surgical TreatmentThe eye can be examined with relative ease regarding both its function and its structure. A functional examination includes the capability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye may be checked in a number of methods. The client might be asked to identify illuminated letter or items of differing sizes on what is called the Snellen chart.\nOn the other hand, the evaluation of the structural part of the eye might be made in several methods. Tension within the eyeball is measured by a \"tonometer.\" In specific diseases, specifically in glaucoma, the tension in the eyeball is increased markedly.\nHowever, it needs to be well bore in mind that a client with an eye problem may have other problems also. Frequently other physical conditions are primary and affect the eye as a repercussion. The look of the eye can notify the doctor and the client to difficulties in some disruptions of other parts of the body even prior to other signs present themselves.\nOne's reliance on sight is highlighted when one faces a possible or momentary long-term loss of this vital sense. Hence, when corrective measures are looked for, particular types of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with the reality that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to motivate reduced usage of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible equivalent, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this type of surgery, Get More Info one's vision is corrected permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently changed. This can be done using an \"excimer laser.\"\nThe primary purpose of this surgery is to develop a threadlike, rounded \"flap\" in the cornea utilizing a blade called \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nAmidst the growing popularity of LASIK eye surgical treatment, there are still disadvantages that individuals need to understand. Probably, the primary reason why this type of eye surgery has ended up being well accepted is since most of its cases had actually achieved success.\nHowever, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nDue to Web Site the fact that LASIK eye surgery involves the operation of the retina, which is among the most delicate portions of the eye, the majority of people state that the operation can be very risky.\nSimply puts, a simple error could nearly trigger an individual's lifetime blindness. For this reason, it is you could try this out very important to think about lots of elements before deciding whether LASIK eye surgery is the right restorative procedure one needs to go through.\n2. It is not a perfect procedure\nLASIK eye surgery may correct your vision but it does not always indicate that it can offer you a ideal vision. Even if analytical reports show that 70% of the clients may have 20/20 vision, this does not necessarily mean they have ideal vision as well.\nGiven all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the ideal eye surgical treatment the way the majority of people see it\nAlternatively, the evaluation of the structural part of the eye might be made in a number of ways. It ought to be well kept in mind that a client with an eye problem may have other problems. Often other physical conditions are primary and affect the eye as a effect. The look of the eye can notify the client and the doctor to difficulties in some disturbances of other parts of the body even before other symptoms provide themselves.\nLike its tangible equivalent, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://www1.finetasty.net/news/33503.html","date":"2022-09-29T17:28:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335362.18/warc/CC-MAIN-20220929163117-20220929193117-00683.warc.gz","language_score":0.9305357933044434,"token_count":1112,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__262653505","lang":"en","text":"Beyond embedded - integrated machine vision\nAbstract: like all automation products, baccalais' machine vision system uses off the shelf MAPP technology component programming. The resulting applications cover everything from process control and motion to machine vision and HMI\nthe old proverb tells us, \"seeing is believing\". In fact, vision is the most trustworthy of human senses - and it is also something we often use to interact with the world. \"In contrast,\" andreaswaldl, product manager of integrated machine vision at baccalais, said, \"many machines today are more or less running blindly.\"\nOEMs have been trying to solve this problem through machine vision for many years. When enterprises are committed to implementing industry 4.0, such a visual system may become a valuable tool. \"At present, however, machine control products have been registered for too long and machine vision still lives in two different worlds,\" waldl said. Integrating machine vision into applications is still a very complex task\nbaccalais' machine vision\n\"we have developed an embedded vision system whose flexibility and unprecedented integration have eliminated the defects previously associated with these systems,\" waldl said. The core of the solution is a wide range of smart camera technology. Low end products will replace simple machine vision sensors, while high-end series will give full play to the potential of high-end smart cameras. These cameras can perform various machine vision tasks that are still performed by PC based systems\na key component of the baccalais machine vision system is intelligent lighting technology, which can be integrated into the camera, used as an external device, or a combination of the two. Automatic dimming can prevent stray light and other difficult lighting conditions from affecting performance. In addition, it is also easy to achieve high-precision synchronization of high-speed image capture before installing the experimental machine, or implementing specific object requirements, such as light field or dark field lighting\n\"baccalais' machine vision system can be integrated at all levels: engineering tools, real-time operating systems and application software,\" waldl stressed. The overall approach covers all aspects of automation solutions: from control systems to safety technology, from motion control to robots and CNC. \"Now it also includes machine vision.\"\ncameras and lighting are like integrated i/o modules, servo drivers and safety controllers, and interfaces are no longer required in the operating system. Tasks such as programming and configuring image processing routines and setting up cameras and lighting have all become part of the entire automation project\ncontrol programmers can perform a large number of machine vision tasks by themselves. All data, parameters and variables are standardized throughout the system – machine vision does not require separate process variables. Only when the professional knowledge of visual experts is needed, such as dealing with difficult lighting conditions\nbaccalais has integrated machine vision into its automation studio engineering tool\nbaccalais MAPP technology framework provides ready-made software components, and machine vision applications can be easily created with less programming. Since the MAPP component can realize the intuitive communication between each other, it only needs a few clicks to integrate the images captured by the smart camera into the P view HMI application for the comprehensive realization of customer satisfaction. None of this requires writing a single line of code. Camera and lighting parameters and trigger conditions can be changed at any time, so that product type change and other operation time adjustment are very easy to implement\nthe potential applications of the baccalais machine vision system range from relatively simple tasks - such as reading bar codes, OCV and OCR - to the most demanding tasks in the pharmaceutical, printing and textile industries\ndifferent camera models can be seamlessly expanded, and they are all based on the same technology. In this way, OEM manufacturers can equip different machine vision system configurations for different models. No matter what kind of hardware is installed, the software only needs to be created once. Since the application program is also stored on the controller, if the camera is replaced during maintenance, the data will not be lost\nlike all automation products, baccalais' machine vision system uses off the shelf MAPP technology component programming. The resulting applications cover everything from process control and motion to machine vision and HMI\nsub microsecond synchronization\ncameras and lighting are directly integrated into the real-time network through Powerlink, which not only ensures the close synchronization between the machine and motion control, but also handles HMI communication\nthe trigger signal comes directly from the controller or sports application, rather than the detour they were forced to take in the past. The ability to synchronize image triggers and lighting controls with the entire automation system - with hard real-time and sub microsecond accuracy - opens up a new world full of opportunities. For example, in dynamic applications with frequent speed changes, a separate encoder is no longer required on the camera\nby fully integrating machine vision into its automation system, baccalais now allows machine manufacturers to achieve control and machine vision tasks through a single tool. As waldl concluded, \"unlike the shortcomings of traditional vision systems, they can refocus on optimizing the value-added process of machines with high-end fine chemicals such as catalysts, pharmaceutical intermediates and electronic chemicals.\"\n\"the first fully integrated machine vision system brings new opportunities to mechanical equipment manufacturers.\" Andreaswaldl, product manager, baccalais – integrated machine vision","domain":"optical_engineering"}
{"url":"https://trendpickle.com/colour-laser-marking-application/","date":"2023-12-10T19:59:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102637.84/warc/CC-MAIN-20231210190744-20231210220744-00533.warc.gz","language_score":0.9235603213310242,"token_count":682,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__186857197","lang":"en","text":"Colour laser marking is not a recent process but was founded 10years back, although barely utilized. The Color Marking technique was originally noticed as a promising tool for marking craft metal and jewellery. Over the years we notice this method in a tremendous market as manufacturers of consumer goods are glancing for fresh strategies with promising output differentiation.\nThe technique of colour marking entails a variety of elements which comprises titanium and stainless steel. Additionally, broadening the parameters of a laser about the colour application. This strategy can bring about a monotonous item refreshed with shades of colour, that could be of vast benefit.\nWhat is Colour Marking?\nColour laser marking, or colour laser inscribing as it’s widely known, is the manner of the colour upswing to an item that is being inscribed. “Marking” is the more qualified word since engraving wipes out a fraction of the material’s body, formulating a cavity.\nUtilizing colour for laser marking or engraving enables you to broaden your potentials and deliver extra versatility in your commodity offerings, as well as appealing characteristics for your clients.\nColour laser engraving can be toppled into two subsets, that colour laser engraving on metal and colour laser marking on the plastic item. You can refer to this website for further information.\nColour Laser Marking on Plastics\nAs of this procedure, colour laser markings for plastics is still exclusive, but lately, progressive processes may rapidly alter that across the business. At prevailing times, plastic substances that are inscribed remains in the identical colour as the actual original stuff, with fixed alternatives in light and dark shades.\nColour Laser Engraving on Metals\nColour engraving metal has more comprehensive abilities and applications, with laser colour marking stainless steel being extremely prominent in a lot of enterprises. This pattern of marking alters the surface coating of the element and can generate different colours on the article.\nApplications for Colour Laser Engraving\nCompanies have operated colour laser engraving and marking for various objectives, such as through:\n· Personalizing commodities for customers\n· Adding graphics, designs, and images to modify an output\n· Improving their branding skills by marking a piece with their company colours\n· Ornamenting craft metal works, watches, and jewellery\n· Marking cameras, mobile phones and other electrical equipment\n· Marking metal fittings in the bathroom to denote hot and cold water\n· Marking parts for use in medical products, automobiles, aircraft, and more\n· Marking firearms and knives for personalization\nDifference between Laser Marking, Engraving and Laser Etching\nAll three processes are very prominent, three of these laser assistances furnish a lasting marking solution, fulfilling regulations and amplifying distinction to your commodities and parts.\nThe distinction between laser marking, laser engraving, and laser etching primarily have to do with what each technique does to the marking surface, involving how intense the laser gets on and how it remakes the all-around impression.\nLaser marking discolours the surface of the item, whereas laser etching and engraving eliminate a fraction of the surface area as it marks. The major difference between laser etching and engraving is the depth to which the laser penetrates the surface.","domain":"optical_engineering"}
{"url":"https://coastbiomed.com/product/zoll-m-series-capnostat-co2-monitoring-cable-refurbished/","date":"2018-02-24T18:09:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815918.89/warc/CC-MAIN-20180224172043-20180224192043-00124.warc.gz","language_score":0.883697509765625,"token_count":204,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__76212883","lang":"en","text":"Zoll M Series Capnostat Co2 Monitoring Cable Refurbished\nFor use with the Zoll M-series defibrillator\n•A patented IR source capable of being pulsed on and off very rapidly, which eliminates the need to interrupt the IR beam with a rotating chopper wheel.\n•A beam splitter allows a single beam infrared pulse to simultaneously strike reference and measurement detectors, replacing a sealed gas reference cell rotating on a chopper wheel. Since reference and measurement signals occur at precisely the same time, changes in the optical signal due to contaminants in the airway are effectively removed from the signal. This results in superior performance under adverse clinical conditions.\nThe resulting rugged design allows the CAPNOSTAT to withstand the demands of the harsh hospital and EMS environment.\nInitial CO2 indication in just 15 seconds.\nIn addition to being extremely rugged, the CAPNOSTAT can display a capnogram 15 seconds after power-up and is fully operational within an additional 15 seconds.","domain":"optical_engineering"}
{"url":"http://www.optek.com/Photometry.asp","date":"2015-09-05T14:12:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-35/segments/1440646312602.99/warc/CC-MAIN-20150827033152-00342-ip-10-171-96-226.ec2.internal.warc.gz","language_score":0.901300847530365,"token_count":178,"dump":"CC-MAIN-2015-35","global_id":"webtext-fineweb__CC-MAIN-2015-35__0__64262741","lang":"en","text":"Photometry is the branch of science that deals with the measurement of light intensity.\noptek inline photometric analyzers are based on the interaction of light with process fluids or gases. This interaction can be measured with great exactness, as described by the Lambert-Beer Law.\nBecause of their accuracy and robustness, inline, photometric instruments are able to provide precise, real-time process stream analyses when installed at strategic locations in pipelines, reactors, tanks and vessels.\nPhotometry is ideal for a wide variety of process applications\n- Suspended solids\n- Trace contaminants\n- Interface detection\n- Filter control\n- Separator control\n- Oil in water/water in oil\n- ClO2, S02\n- BOD reduction\n- And many more...\n|See the applications menu for more information on how photometry is used in industry.","domain":"optical_engineering"}
{"url":"http://www.kwentology.com/2013/08/which-is-largest-telescope-in-world_3.html","date":"2020-10-01T15:11:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402131777.95/warc/CC-MAIN-20201001143636-20201001173636-00379.warc.gz","language_score":0.8708315491676331,"token_count":192,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__279200575","lang":"en","text":"Two identical telescopes called Keck I and Keck II are the largest reflecting telescopes in the world. Each has a segmented mirror 10 m (33 feet) in diameter. The telescopes are on Mauna Kea, a mountain in Hawaii.\nThe telescopes in an optical observatory which stands under a large dome with shutters. The dome and the shutters protect the telescope from the weather. Motors and precision gears keep the telescope pointed in the desired direction as the Earth rotates. Observatories use two principal kinds of optical telescopes—reflecting telescopes and refracting telescopes. Reflecting telescopes use a curved mirror or a set of such mirrors to focus light, and refracting telescopes use a system of lenses.\nRefracting telescopes need thick lenses of high magnification. The refracting telescope at the Yerkes Observatory in Williams Bay, Wisconsin, is the world's largest lens. It measures 102 cm (40 in) in diameter.","domain":"optical_engineering"}
{"url":"https://optics.doriclenses.com/collections/micro-optics/products/far-microlenses","date":"2023-10-04T02:55:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511351.18/warc/CC-MAIN-20231004020329-20231004050329-00782.warc.gz","language_score":0.7633493542671204,"token_count":376,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__88714277","lang":"en","text":"The emitting facet of the single-mode laser diode is typically 1-micron high and 3-5 microns wide. Its output beam is highly divergent in a so-called \"fast-axis\" direction perpendicular to the emitter and less so along the facet or \"slow-axis\". The collimation of such an asymmetrically divergent beam with a combination of the fast- and slow-axis collimating lenses, or FAC and SAC lenses, yields a rectangular beam cross-section not convenient for all applications.\nAlternatively, the Fast-Axis Reducer (FAR) lens collimates the fast-axis of a laser diode beam with its convex acylindrical surface. Then, its concave cylindrical surface re-introduces the fast axis beam divergence equal to that of the slow axis. The appropriate lens thickness takes care of beam astigmatism. Pairing the Fast Axis Reducer with a rotationally symmetric lens produces a collimated and round beam.\nCode Description Glass Diode Aspect Ratio (F:S)\nZEMAX D142-0404 FAR_1:3_STIH53_520 S-TIH53 1 : 3\n520 0.100 0.412 0.438 D142-0402 FAR_1:5_STIH53_780 S-TIH53 1 : 5 780 0.069 0.500 0.550\nDimension Tolerance +/- 0.02 mm\nLength Tolerance +/- 0.05 mm AR Coating Specification R < 0.5%, AOI 0-30°\nFast Axis Reducer lens","domain":"optical_engineering"}
{"url":"https://ctrlssolutions.com/panasonic-office-automation-features-4-d-4-holographic-image-sensors/","date":"2021-10-17T01:18:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585045.2/warc/CC-MAIN-20211016231019-20211017021019-00254.warc.gz","language_score":0.968482255935669,"token_count":504,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__96246949","lang":"en","text":"Panasonic’s 4-d image sensors are now on display in an array at its Tokyo headquarters, which was announced on Thursday by CEO Yoshihide Suga.\nThe array is part of a new product called “Panasonic 4-G,” which is a 3D sensing array that will be able to “see” a person in the real world, but also detect when the camera is looking at the outside of the room, the company said.\nThe 4-gigapixel camera is “a powerful platform that can deliver exceptional image quality and high resolution,” according to Panasonic.\nThe company is selling the array at a $300,000 price tag.\nThe system is set to be available in two configurations: a 4-meter array that has a maximum resolution of 10 meters and a 4.5-meter one that has an average resolution of 20 meters.\nIt will also have a 2-meter “cameras” that have a maximum brightness of 600 lux.\nThe 3-gigaapixel array is priced at $2,700, while the 4-megapixel array will be $3,000.\nThe new camera system is also a big step up from the original Panasonic 4-towered cameras that were introduced in 2013.\nThe camera systems that are currently on display are not the new 4- and 4-sensor cameras that Panasonic introduced in 2014 and 2015.\nPanasonic says that the new system is the first 4-and-5-camera array that is actually designed to “encompass and recognize objects and individuals in a large-scale real-time environment.”\nIn a video posted by Panasonic to the company’s official YouTube channel, Suga said the new sensor array will “provide a better image quality, a more robust sensor system and will allow for more advanced camera features.”\nThe company has said that it will offer the new array to businesses and government organizations, as well as to hospitals and schools.\n“We are very excited to unveil this new array, and to offer it to customers to help them explore the possibilities of this new technology in their everyday lives,” Suga told investors during a conference call.\nThe announcement comes just weeks after the Panasonic Corp. unveiled its own 4-camera system that was developed in partnership with the University of Michigan, which uses it to help track down people missing in action.","domain":"optical_engineering"}
{"url":"https://www.nabihait.com/product/jvs-n933-kdl-price-in-bangladesh/","date":"2023-09-22T11:11:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506399.24/warc/CC-MAIN-20230922102329-20230922132329-00779.warc.gz","language_score":0.7253507375717163,"token_count":1016,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__169866318","lang":"en","text":"Jovision JVS-N933-KDL 3MP Dome Full-Color Audio IP Camera in Bangladesh\nThe JVS-N933-KDL is a 3-megapixel dome-style IP camera that comes equipped with full-color imaging capabilities and audio functionality. This camera is designed for indoor use and is ideal for a wide range of applications, including surveillance in homes, small businesses, and retail stores.\nThe camera features a 3-megapixel CMOS image sensor that captures high-quality images with a resolution of up to 2048 x 1536 pixels. It also has a fixed lens with a 2.8mm focal length and a 108-degree viewing angle, providing a wide field of view. Additionally, the camera has a built-in microphone and speaker, allowing for two-way audio communication.\nThe full-color imaging capabilities of the JVS-N933-KDL make it possible to capture clear, detailed images in low-light conditions. This is achieved through the use of a specialized image sensor that can capture more light than traditional black and white sensors. The camera also has a built-in infrared (IR) cut filter that helps to eliminate color distortion in daylight conditions.\nThe JVS-N933-KDL supports Power over Ethernet (PoE) and can be easily installed using a standard network cable. It is also compatible with ONVIF Profile S, allowing it to be easily integrated with a wide range of third-party devices and software.\nOverall, the JVS-N933-KDL is a versatile and reliable IP camera that is well-suited for a variety of indoor surveillance applications.\n|Image Sensor||1/2.9″ CMOS Sensor|\n|Compression Standard||H.265/ H.264|\n|Min. Illumination||0Lux (Fill light ON)|\n|Lens||2.8mm, 4mm, 6mm (M12)|\n|Fill Light||2x Double wick filling lamp (Infrared/ Warm)|\n|Fill Light Distance||Up to 30m.|\n|Image Enhancement||3D DNR|\n|Advanced OSD||Support OSD large font function, OSD flashing on alarm, OSD and time to set the position separately|\n|Motion Detection||Support human detection (Default does not mark the human box)|\n|Image Setting||Rotate, Saturation, Brightness, Contrast, Sharpness|\n|Day and Night Function||Day and night automatic switching|\n|Privacy Mask||Support up 8 areas|\n|Intelligent Analysis||Not Support|\n|Alarm Method||Email Alarm, Client Alarm|\n|Remote Operation||System, Audio and video, Image, Alarm,Network management|\n|Ethernet||1x RJ45 10M / 100M Ethernet|\n|Protocols||HTTP, TCP/IP, UDP, ICMP, RTSP, RTP, RTCP, SMTP, DHCP, DNS|\n|Network Transmission||CloudSEE 2.0|\n|Browser||IE8+, Chrome18+, Firefox5.0+, Safari5.02+|\n|User||Up to 13 Users|\n|Power Consumption||<3W (During day); <6W (At night)|\n|Working Temperature||-20°C ~ 60°C|\n|Working Humidity||10% ~ 90% Rh|\nJovision JVS-N933-KDL Price in Bangladesh 2023\n|Latest Price:||৳ 3,500.00|\n|Contact No:||+88 01407-555777|\nTable of Contents","domain":"optical_engineering"}
{"url":"https://grupatechnitel.pl/en/telecom-services-and-fibre-leasing/","date":"2022-12-03T05:43:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710924.83/warc/CC-MAIN-20221203043643-20221203073643-00768.warc.gz","language_score":0.9561461210250854,"token_count":213,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__300627718","lang":"en","text":"Fibre optic lease service is provided on the basis of own fiber optic cable network as well as infrastructure that is managed and maintained for third parties. We have fiber optic contacts with domestic operators.\nWe provide fast, broadband connections in selected locations based on our own as well as managed ICT network. The service enables the Customer to be connected at a bandwidth ranging from 1 Mb/s to 10 Gb/s. Access links are made as fiber optic links terminated with electrical contacts or Gigabit Ethernet optical contacts.\nWe provide satellite links with fixed parameters of signal transmission in any location. We also use the solution as a backup link, which is of strategic importance and ensures uninterrupted communication. Satellite link technology is as independent of terrestrial infrastructure as possible, with the result that there is no risk of loss of communication due to fiber, copper or transmission/reception system failure.\nOur offer also includes backup for digital transmissions based on satellite technologies and solutions allowing for networking of distributed locations through satellite Internet access systems, including a separate network dedicated to a single contractor.","domain":"optical_engineering"}
{"url":"https://www.horseflytrap.co.uk/product/uv-a-tester/","date":"2022-05-16T04:57:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662509990.19/warc/CC-MAIN-20220516041337-20220516071337-00723.warc.gz","language_score":0.7869130969047546,"token_count":185,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__257424542","lang":"en","text":"Detects : UV-A\nRange : 310 ~ 400 nm\nMeasurement Error : ±10%\nUVI (UV Index) Range : 0 ~ 11\nUV Power : 0 ~ 20 mW/cm2\nSensor Type : Semiconductor Sensor\nLength / diameter : incl. headphone jack 47mm, diameter 10 mm\nWeight : 6 g\nWorkable Temperature : -20 ~ 50˚C\nIt’s a tiny, beautifully designed with Aluminum body, UV monitor/tester that connects to your phone to measure and analyze the UV-A light from UV lamps. Prior to taking a UV-A reading, make sure that the lamp has been working for at least 5 minutes.\nDepending on the ambient temperature, it can take up to 5 minutes for a UV-A lamp to reach its full UV-A output.","domain":"optical_engineering"}
{"url":"https://www.carefibergroup.com/what-about-the-production-flow-for-adss-cable-in-carefiber-optical-technology","date":"2021-05-13T11:40:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989916.34/warc/CC-MAIN-20210513111525-20210513141525-00068.warc.gz","language_score":0.959780752658844,"token_count":159,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__57719086","lang":"en","text":"Carefiber Optical Technology. is an established Chinese company, specializing in development and manufacturing of optical cable wire. Since its establishment, we have been active in the market. As one of Carefiber Optical Technology's multiple product series, fiber optic adapter series enjoy a relatively high recognition in the market. This product is durable and powerful. The product takes up a small footprint of buildings. The product has no warm-up time, which means users have 100% light immediately when appearing in the dark environment. The product is characterized by good optical performance.\nOur core value is a strong teamwork spirit. We encourage not only internal teamwork, but also the cooperation across boundaries. By this way, we work better with our partners to meet their requirements which in return helps our company grow. Contact us!","domain":"optical_engineering"}
{"url":"https://huskyachao.github.io/publication/camradar-ubicomp23/","date":"2023-06-03T10:58:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649193.79/warc/CC-MAIN-20230603101032-20230603131032-00538.warc.gz","language_score":0.9137315154075623,"token_count":281,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__90277259","lang":"en","text":"Hidden cameras in sensitive locations have become an increasing threat to personal privacy all over the world. Because the camera is small and camouflaged, it is difficult to detect the presence of the camera with naked eyes. Existing works on this subject have either only covered using wireless transmission to detect cameras, or using other methods which are cumbersome in practical use. In this paper, we introduce a new direction that leverages the unintentional electromagnetic (EM) emanations of the camera to detect it. We first find that the digital output of the camera’s image sensor will be amplitude-modulated to the EM emanations of the camera’s clock. Thus, changes in the scope of the camera will directly cause changes in the camera’s EM emanations, which constitutes a unique characteristic for a hidden camera. Based on this, we propose a novel camera detection system named CamRadar, which can filter out potential camera EM emanations from numerous EM signals quickly and achieve accurate hidden camera detection. Benefitting from the camera’s EM emanations, CamRadar will not be limited by the camera transmission types or the detection angle. Our extensive real-world experiments using CamRadar and 19 hidden cameras show that CamRadar achieves a fast detection (in 16.75s) with a detection rate of 93.23% as well as a low false positive rate of 3.95%.","domain":"optical_engineering"}
{"url":"https://hsana.org/fashion/get-crystal-clear-vision-with-contact-lenses/","date":"2022-05-24T12:49:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662572800.59/warc/CC-MAIN-20220524110236-20220524140236-00559.warc.gz","language_score":0.9444904923439026,"token_count":558,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__160279141","lang":"en","text":"Children too spend extended amounts of time in front of televisions, I-Pads and computer screens. Subsequently, individuals end up with Myopia (Near sightedness) or Hyperopia (Far sightedness). However, both these disorders related to vision can easily be corrected with spectacles. But, how many of you like to wear spectacles? Not all of us though! This is where contact lenses come into picture.\nTypes of Contact lens:\nSoft Contact lens–These lenses are prepared from a soft flexible plastic that allows for the easy follow of oxygen trough the cornea. These lens are comfortable to wear and easy to adjust on the cornea. Users usually claim that soft contact lenses are so comfortable that one may even forget that he or she is wearing them. The newest and latest material being used in the manufacturing of soft contact lenses is silicon hydrogel. This material provides more oxygen to the eye allowing the user to wear the lenses for longer duration of time with minimum discomfort.\nRigid Glass Permeable (RPG) Contact lenses-The glass permeable lens provide crisp and clear vision. They are more durable and do not allow the build-up of residue very easily. As they last longer than the other lenses, they are more cost effective. RPG lenses are more easily managed as they do not tear as easily as soft contact lenses. The only drawback of the RPG lenses is that they are not as comfy to wear as the soft contact lenses. A new user may require several weeks before he or she can adjust to wearing them every day. Soft contact lens users can adjust to these lenses within a couple of days only.\nExtended Wear Contact Lenses–Acuvue Contacts No Prescription contact lenses for extended wear are usually soft contact lenses made from material that allows for the easy flow of oxygen to the cornea. These lenses are usually used by consumers who wish to wear contact lenses overnight. Their duration for wearing may range from 1 to about 6 nights and go up to a maximum of thirty days. Certain types of rigid glass permeable lenses are made for long duration or overnight wear but users need to first check their individual eye capacity before opting for these lenses. An ophthalmologist’s thorough analysis of the eye will help determine the user’s tolerance levels for overnight usage. The eyes have to be allowed a rest time without lenses for at least twenty four hours in between each period of prolonged lens usage.\nDisposable Contact Lenses- This category of soft contact lenses have become the most common in today’s day and age. Depending on what kind a user opts for, the duration may vary from everyday disposable ones to those that may be used for up to thirty days.","domain":"optical_engineering"}
{"url":"https://www.thefashionspot.com/wellness/799549-blue-light-on-phones-laptops-can-cause-blindness/","date":"2020-09-27T21:08:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401578485.67/warc/CC-MAIN-20200927183616-20200927213616-00016.warc.gz","language_score":0.9324527382850647,"token_count":394,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__101882615","lang":"en","text":"A new study has found that constant exposure to blue light emitted by phones, laptops and other digital devices can damage a person’s vision, causing it to blur or, worse, be irreversibly impaired.\nConstant and prolonged blue light exposure produces poisonous chemicals affecting the light-sensitive cells in the eyes, according to research conducted by The University of Toledo. This can lead to the incurable condition called macular degeneration, which occurs when the macula, the center part of the retina, deteriorates. Blue light is a short wavelength light that contains high amounts of energy.\nDr. Ajith Karunarathne, an assistant professor at the university and one of the study’s researchers, said, “We are being exposed to blue light continuously and the eye’s cornea and lens cannot block or reflect it. […] It’s no secret that blue light harms our vision by damaging the eye’s retina.”\nAccording to The Guardian, Kasun Ratnayake, a PhD student and one of the researchers, explained that when one shines blue light on the retinal, which is the main molecule involved in vision, it kills the light-sensitive cells, otherwise known as photoreceptor cells. “Photoreceptor cells do not regenerate in the eye. When they’re dead, they’re dead for good,” he said.\nIn order to prevent this condition from occurring, Karunarathne suggests wearing sunglasses as they can filter out the blue light being emitted by common digital devices. Moreover, visiting assistant professor and researcher Dr. John Payton suggests making use of the blue-light filters that phone companies are adding to the screen.\n“By learning more about the mechanisms of blindness […] we hope to find a way to protect the vision of children growing up in a high-tech world,” Karunarathne said.","domain":"optical_engineering"}
{"url":"https://ilumo.one/en/muxwave-2/","date":"2023-06-04T13:41:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649986.95/warc/CC-MAIN-20230604125132-20230604155132-00244.warc.gz","language_score":0.9241587519645691,"token_count":418,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__281112175","lang":"en","text":"Founded in 2012, Shenzhen Muxwave Technology Co., Ltd. is a national high-tech enterprise mainly engaged in the research and development, design and sales of high-performance digital- analog hybrid integrated circuits. Its products are widely used in urban landscape lighting, smart home, and smart charging, security communications, industrial control, commercial display and other consumer electronics applications. Over the years, Muxwave has always adhered to the business philosophy of independent innovation, technology first, and continuous improvement, and continued to provide customers with various high-quality, high-performance products and solutions.\nBased on the precipitation of IC technology and the advantages of continuous research and development, with rich intellectual property accumulation and stable supply chain guarantee, Muxwave has invested in the establishment of a wholly-owned intelligent manufacturing enterprise integrating chip packaging, SMD production, and holographic LED screen R&D and production, serving high-end customers, via providing unique high-quality, high-performance holographic LED screen products and overall solutions that integrate light, transparent, smart, thin and other characteristics.\nWith technical development, LED holographic display screens have appeared as a kind of brand new information media. They are favorite products in the display industry because of their advantages such as easy installation and see-through display. The LED holographic display screen of our company ( “product” for short) has independently developed innovative driving mode and product architecture. Its design concepts include “daylighting” , “see-through” and “environmentally friendly” . Taking ultralow static power-driven design as its core technology breakthrough point, it has high resolutions and are safe, energy-saving and reliable. It is widely used in advertising media, commercial display, stage performance and high-end consumption display occasions.\nPlease read this WI carefully first for standard installation and correct operation in installation and use. Failure to follow the installation method herein, or failure to use conforming parts may result in product faults and/or personal injuries.","domain":"optical_engineering"}
{"url":"http://www.aas-world.org/technology_transfer/patents/US5091913.html","date":"2024-04-14T19:52:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816893.9/warc/CC-MAIN-20240414192536-20240414222536-00545.warc.gz","language_score":0.8716790676116943,"token_count":166,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__119787432","lang":"en","text":"Patent Number: 5,091,913\nDate of Patent: Feb. 25, 1992\nQUARTZ CRYSTAL TUNING HE-NE DOUBLE FREQUENCY LASER\nA birefringent quartz plate is inserted in the laser cavity to generate two orthogonal polarized beams with different frequencies, and with the amount of frequency difference depending upon the angle of orientation of the crystalline axis of the quartz plate with respect to the longitudinal axis of the laser beam in the cavity. Frequency differences between the generated dual frequency beams can be varied from tens of MHz to more than 1000 MHz, with tuning or variation being effected by a mechanism for rotating the quartz plate. This apparatus provides a dual frequency laser for interferometry, laser Doppler velocimeters and other applications.","domain":"optical_engineering"}
{"url":"https://gurupaara.lk/forum/d/41-why-is-the-central-spot-dark-in-newton-s-experiment","date":"2018-02-24T08:29:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891815500.61/warc/CC-MAIN-20180224073111-20180224093111-00304.warc.gz","language_score":0.8883266448974609,"token_count":173,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__3785771","lang":"en","text":"in the center, since the air gap is almost zero, there is no path difference between two reflected beams, but there is a 180 deg. phase shift of the beam reflecting from the bottom surface (air-glass interface) (Light waves change phase by 180° when they reflect from the surface of a medium with higher refractive index than that of the medium in which they are travelling. A light wave travelling in air that is reflected by a glass barrier will undergo a 180° phase change, while light travelling in glass will not undergo a phase change if it is reflected by a boundary with air.(https://en.wikipedia.org/wiki/Reflection_phase_change)) so the interference is destructive.\nthis article describes the math comprehensively -http://physical-optics.blogspot.com/2011/06/newtons-rings.html","domain":"optical_engineering"}
{"url":"https://rayshapersa.ch/portfolio/compvision/","date":"2023-02-09T09:33:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501555.34/warc/CC-MAIN-20230209081052-20230209111052-00524.warc.gz","language_score":0.9046701192855835,"token_count":320,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__80887644","lang":"en","text":"Computational photography goes beyond traditional photography and here’s the difference. Traditional cameras capture 2D images and output pixels, whereas in computational photography multiple image sensors capture depth and reflection characteristics of what’s in view. Conventional photography captures pixels, whereas computational photography works with light fields, rays of light flying in space. This is Michael Faraday’s dream come true: in 1864 he suggested that light should be understood as a field, just like a magnetic field.\nImage processing techniques for computational photography include: brightness and contrast adjustments; image compositions (tone mapping, exposure/focus combining); image manipulation: (denoising, restoration, cropping, alignment, and feature tracking).\nComputer Vision is the study of how the machines see things. It enables cameras and computers to replace the human eye and recognize, track, and measure objects. No surprise that Artificial Intelligence (AI) has its thrust from computer vision. Now AI-powered vision systems are the go-to tools for extracting information from images and light fields. Typical uses include: industrial robots; autonomous vehicles; safety monitoring; image organization (database retrieval); industrial inspection; medical image analysis; and landscape modeling. The signal processing algorithms for computer vision range from object detection and recognition, to face analysis; optical character recognition; feature detection; feature tracking; and image registration.\nWhen combined and powered by AI, the two disciplines above open up vast opportunities for providing groundbreaking multimedia experiences to humans and machines. RayShaper’s mission is to contribute to this exciting field and commercialize its emerging discoveries.","domain":"optical_engineering"}
{"url":"http://www.jianhemedical.com/product/670.html","date":"2020-10-25T13:01:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107889173.38/warc/CC-MAIN-20201025125131-20201025155131-00614.warc.gz","language_score":0.7615132927894592,"token_count":261,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__93895718","lang":"en","text":"Anesthetic video laryngoscopeDescription：Video laryngoscope is a new video intubating system, which has a high-resolution anti-fog camera mounted on the front of the lens, and two light-emitting diodes to provide light and contrast. The image is transmitted and magnified to a 7-inch LCD display through the optical fiber cable.\n- 所属分类：Video Laryngoscope\n- Product Details\nAnsthesia video laryngoscope is used for clinic treatment,use the blades prop up the epiglottis of patients to make the glottis exposing.Medical workers can do airway anesthesia accurately with the video laryngoscope .disposable anesthesia laryngoscope also can be used in oral cavity examination and treatment.Use video laryngoscope can relieve the pain of patients during treatment.\n★ 3-inch screen,16G big memory\n★ Aluminium alloy material,cleaning and disinfecting easily\n★ Big roate angle,0°-130° front to back,0°-270° left to right\n★ Take photo and video in one button\n★ Blades with hard anodizing,prevent from bite mark","domain":"optical_engineering"}
{"url":"https://houseoffunfreecoins.mobi/biprisma-de-fresnel-97/","date":"2020-01-24T23:21:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250626449.79/warc/CC-MAIN-20200124221147-20200125010147-00291.warc.gz","language_score":0.8022028207778931,"token_count":984,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__78730731","lang":"en","text":"Biprisma FresnelBiprisma Fresnel este un dispozitiv de interferen format din dou prisme optice identice cu unghiul diedrumic, lipite ntre ele la. frequentty /; – overlap n TV solapamiento de frecuencias m, – putlmg n biprism n PHYS biprisma de Fresnel m; – diftraction n ACOUST, OPT, PHYS. Newton, después de todo, había observado lo que son ahora Una versión del prisma doble de Fresnel se utiliza en.\n|Published (Last):||24 September 2013|\n|PDF File Size:||4.91 Mb|\n|ePub File Size:||3.14 Mb|\n|Price:||Free* [*Free Regsitration Required]|\nWhile downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. He gave a simple arrangement for the production of interference pattern. Suppose the distance between the images of A and B as.\nImam- Fresnel Zone Documents. So the wavelength of light will be. When light incident from S on the lower portion of prism It bents upwards and appears to come from virtual source B.\nFabrication Method of Fresnel Lenses Based on The distance of the nth bright fringe from the centre. Suppose the distance between the images of A and B as seen by the eyepiece is d1. Augustin-Jean Fresnel was a Frenchphysicist who contributed significantly to the establishment of the wave theory of light and optics.\nFresnel vector diffraction integral Documents. In biprism it depends on refraction In mirror it depends on reflection. Similarly light fresnwl S incident on the upper portion of Prism bents downwards appear to come from A. Since C is equidistant from A and B so at C maximum fringe intensity will occur.\nPPT – Fresnel Biprism PowerPoint Presentation – ID\nThe distance of the nth bright fringe from the centre with monochromatic light Where. Vapor de Agua Fresnel Documents. For green light, For red light. Determination of the distance between the two sources d M L1 A convex lens L1 is placed between the prism and eyepiece Msuch that the image of the virtual sources A and B are seen in the field of view of the eyepiece.\nBiprism It consists of two thin acute angled prisms joined at the bases. When light incident from S on the lower portion of prism. Now move the lens towards eyepiece and bring it to other positon L2 So that again images of A and B are seen clearly in the the field of view Of eyepiece. Easily Constructed Fresnel Mirrors Documents. Fringes with white light.\nOptics related research for interferometric gravitational wave detectors. For white light the two coherent virtual sources are produced by Refraction and the distance between the two sources depends upon the refractive index which intern depends upon the wavelength.\nCollect Leads new Upload Login. Interference a difrakce. Description Bilrisma Report Fresnel Biprism. Fresnel coherent diffraction tomography Documents. The Fresnel Lens.\nInterferómetro de trayecto común\nBiprisma FresnelBiprisma Fresnel este un dispozitiv de interferen format din dou prisme optice identice cu unghiul diedrumic, lipite ntre ele la baz. Suppose for crossing 20 bright fringes from the field of view, the Eyepiece has moved through a distance l.\nSo A and B are two virtual coherent sources. So the fringe width be. Augustin-Jean Fresnel was a French physicist who contributed significantly to the establishment of the wave theory of light and optics.\nSo, for green light the distance between the two sources is different to that with red light. Fresnel region approximations for wide angles and large fresnel numbers Documents.\nDo Fresnel coefficients exist? Download Presentation Connecting to Server. It is a device used to refractlight, reflect it or break bi;risma up to disperse it into its constituent spectral colours.\nInterference fringes of equal width will be occurbetween EF portion of the screen. Pentru a obine un grad de coeren ridicat, dispozitivul se construiete astfel nct distana d dintre surse s fie ct mai mic, cea ce implic un unghict mai mic al prismelor.","domain":"optical_engineering"}
{"url":"http://www.tasarcherysupplies.com.au/store/p673/VORTEX_Diamondback.html","date":"2024-02-26T11:52:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474659.73/warc/CC-MAIN-20240226094435-20240226124435-00545.warc.gz","language_score":0.8146899938583374,"token_count":392,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__122485282","lang":"en","text":"The redesigned Diamondback binocular once again redefines the price vs performance ratio in the world of optics.\nFunctionally, as well as aesthetically, the short hinge and upscale sleek new look not only grabs the eye, but leaves more room for your hands, making these binos physically easier to hold.\nAn all new optical system with enhanced, dielectric fully multi-coated lenses serves up stunning views and impressive low light performance, critical attributes when working to glass up and evaluate game.\nAnd with the ultra-wide, best in class, field of view, you can efficiently cover ground and acquire subjects with ease.\nFully Multi-Coated - Increased light transmission with multiple anti-reflective coatings on all air to glass surfaces.\nDielectric Coating - Multi-layer prism coatings provide bright, clear, colour accurate images.\nFogproof - Nitrogen gas purging delivers fogproof, waterproof performance.\nAdjustable Eyecups - Twist up and down for comfortable viewing with or without eyeglasses.\nCentre Focus Wheel - Adjusts the focus of both binocular barrels at the same time.\nDiopter - Adjusts for differences in a user's eyes. Located on right eyepiece.\nTripod Adaptable - Compatible with a tripod adapter, allowing use on a tripod or car window mount.\nMagnification - 10X\nObjective Lens Diameter - 42 mm\nEye Relief -15 mm\nExit Pupil - 4.2 mm\nLinear Field of View - 330 feet/1000 yards\nAngular Field of View - 6.3 degrees\nClose Focus - 6.7 feet\nInterpupillary Distance - 55-75 mm\nHeight -14.7 centimetres / 5.8 inches\nWidth -12.954 centimetres / 5.1 inches\nWeight - 618 grams / 21.8 oz","domain":"optical_engineering"}
{"url":"http://leptitcoindejol.fr/mask/425.html","date":"2021-05-07T09:52:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988775.80/warc/CC-MAIN-20210507090724-20210507120724-00308.warc.gz","language_score":0.7814190983772278,"token_count":1550,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__220220702","lang":"en","text":"Diode 808nm Laser Hair Removal Price. 450 likes · 10 talking about this. Manufacturer of advanced beauty equipment , Laser , IPL , Cryolipolysis , RF , HIFU , Cavitation and so on808nm Diode LaserPrice and other details may vary based on size and color. 5pcs/lot Infrared LED Lasers 808nm 200mw Infrared Laser Diode 5.6mm TO 18 2.2v LD. $19.85 $ 19. 85 ($3.97/Item) $4.99 shipping. Usually ships within 3 to 5 weeks. 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During a laser hair removal treatment, light passes through the skin and is absorbed by the melanin in the hair shaft. This absorption raises the temperature of the hair follicle and thermally destroys the cells responsible for regrowth. 808nm diode laser hair\nShop online for standing 808nm diode laser hair removal angela at DHgate from Slimmingmachine8. Find a standing 808nm diode laser hair removal angela to 808nm Diode Laser Permanent Hair Removal Machine Beauty 808nm Diode Laser Permanent Hair Removal Machine Beauty Machine AL 300B/310B. This represents the worlds most advanced laser hair removal machine. In the field of epilators, you can only find this unique and innovative device. It has a unique wavelength of 808 nanometers which is considered as the excellent standard for hair removal machine.808nm diode laser hair removal handpiece / handle repair808nm diode laser bar stack Sort byMost Popular Sales Favorites New Price Quick View. Sale. 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Sale.Laser 1064nm 808nm 755nm Diode Laser Korea With High Theory of 808nm diode laser *P 808 System, use special laser with long Pulse Width 808nm, can penetrate to hair follicle . *Using selective light absorption theorylaser can be preferentially absorbed by heating the hair shaft and hair follicle, moreover to destroy the hair follicle and oxygen organization around hair follicle.Semiconductor Diode Laser Technology for Hair Reduction Compared to other laser systems such as the Ruby and Alexandrite, the 800nm diode laser wavelength offers the deepest penetration levels and superior melanin absorption. These unique characteristics make the diode laser the most suitable technology for laser hair removal , enabling safe and effective treatment of all skin and hair types, in all\n808nm Diode Laser Hair Removal Machine Price, Diode Laser Machine Price 900Q, US $ 9799.00 15999.00 / Set, Guangdong, China, GSD, 900Q6.Source from Shenzhen GSD 808nm Diode laser Hair Removal System Germany Laser 808nm diode laser technology is the gold standard in laser hair removal since it was introduced in 1998. Unlike earlier systems, however, diode laser energy penetrates deep into the dermis (where the hair follicle is located) with high average power and a rapid 10 pulse per second repetition rate.Innovation 2019 Permanent Hair Remover 808nm Laser Diode Innovation 2019 Permanent Hair Remover 808nm Laser Diode Hair Removal Machine price, US $ 2000 3500 / Unit, Guangdong, China, Huanshi, GA0406.Source from Guangzhou Huanshi Electronic Technology on .\n808nm Diode Laser Professional Hair Removal Equipment I diode laser hair removal machine Treatment theory The System use special laser with long Pulse Width 808nm, can penetrate to hair follicle .Using selective light absorption theory, laser can be preferentially absorbed by the melanin of the hair and then heating the hair shaft and hair follicle, moreover to destroy the hair follicle and Best Quality Alexandrite Portable Laser Diode Hair Removal The Diode 808 Laser is the gold standard in Permanent Hair Removal and is suitable on all pigmented hair and skin types including tanned skin. The 808nm diode laser hair removal machine is best for absorbing melanin so that it is highly effective in different parts of skin, hair follicles and reach to removing any hair easily, with lasting results.Diode Laser hair removal 808nm* The system uses the optimal hair removal wavelength of 808nm diode for deep penetration into the dermis where the hair follicle is located. In treatment procedure, a series of low fluence, high repetition pulses increases the temperature of both the hair follicle\n808nm Diode Laser, Laser Hair Removal, Hair Removal manufacturer / supplier in China, offering Professional Technical 808nm Hair Removal Diode Laser Beauty Machine, Protective Custom Painting Nonwoven Respirator Disposable Mouth Dust Mask N95 / Kn95, Disposable 3ply Face Mask for Personal Supply and so on.SKEILY 808nm Diode laser hair removal machine808Nm Diode Laser Painless Hair Removal Machine Warranty1 year or 20,000,000 shots whichever come firstBarGermany original laser bars. Wavelength. 808nm±3mm. Power. 600W/1200w. Spot Size. 12*20 for 600W; 15mm*26mm for 1200w. Crystal. Sapphire. Cooling Method. Air+Water+Semiconductor+TEC(latest cooling system) Voltage. AC 220V±10%,50HZ 808nm Diode Laser Hair Removal System Germany Laser The 808nm diode laser system uses special semiconductor laser with long Pulse Width 808nm, can penetrate to hair follicle effectively. Using selective light absorption theory, the laser can be preferentially absorbed by the melanin of the hair and then heating the hair shaft and hair follicle, moreover to destroy the hair follicle and oxygen organization around the hair follicle.\n1.808nm diode laser for hair removal, Permanent, painfree, fast, and excellent result on all skin colors; 2. IPL multifunction as Hair removal, Skin rejuvenation, Vascular therapy, Pigment treatment, Breast liftup, etc. Features 1. One machine with 2 systems as diode laser and IPL, ensures multifunction in salon/clinic/SPA; 2.","domain":"optical_engineering"}
{"url":"https://conceptkart.com/collections/new-arrivals/products/apeman-bc100-binoculars","date":"2023-12-10T14:26:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679102469.83/warc/CC-MAIN-20231210123756-20231210153756-00393.warc.gz","language_score":0.8853933811187744,"token_count":704,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__311282664","lang":"en","text":"PROFESSIONAL 10x42 HD BINOCULARS: A bright and sharp image. The binoculars for adults are equipped with high-quality BAK4 prism and FMC coating, providing a crystal viewing with no curvature at the edges.\nCOMPACT AND PORTABLE DESIGN: Make your journey easier. Compact design with 14cm size and 440g weight, comfortable to hold and operate with one hand. The compact binoculars are easy to carry everywhere with our small bag.\nVARIOUS ACCESSORIES: Great gift for any nature lover. APEMAN binoculars come with a Smartphone Adapter that allows you to capture beautiful moments in your trips. Lens covers for both ends protect the lens nicely.\nDURABLE AND STURDY BINOCULARS: Your best partner for outdoor travel. The travel binoculars have a sturdy body covered with rubber armor, providing a pleasant, non-slip grip, no shakes or rattles.\nSUITABLE FOR VARIOUS SCENARIOS: Make you closer to the wonderful world. APEMAN binoculars are great not only for birdwatching but for more outdoor activities and large stage plays such as stargazing, hunting, climbing, hiking, driving, watching vocal concerts, a football game, etc.\nAPEMAN PROFESSIONAL BINOCULARS: Explore the distance, Bring you closer to the world. View the beauty of nature, taking nice images and videos to share happiness with your family and friends.\nThe APEMAN Binocular BC100 Includes:\n- Smart Phone Adaptor: Capture beauty and Share happiness\n- Neck Strap: Compact and easy to carry with you when you are on the go\n- Carrying bag: To keep your binoculars safe wherever you travel\n- Eyepiece and Lens Protection Covers: Protects against unwanted scrapes and scratches\n- User Manual: Helps you to easily focus and operate\nPHOTOGRAPH AND SHARING: This binocular comes with a fashionable smartphone adaptor. It can also be mounted on a tripod. (Not included). Capture the beauty in the distant world to share with your family and friends.\nEASY TO FOCUS: Close your right eye and close and sight an object with your left eye, rotating the center focus wheel until the image is sharp and clear.\nOpen your right eye and close your left eye. Rotating the right earpiece until the object sighted is sharp and clear.\nBoth eyesare now in focus. You will need to use only the center focus wheel to focus on other objects.\n- Fully Multi-Coated Lenses provide you brighter view.\n- Solid construction. The durable framework and rubber armor make it usable to withstand the toughest weather conditions.\n- You can use this binoculars in weak light condition but not in completely darkness. It can resist light water but cannot be used in heavy rain for a long time or soaked in the water.\n- Do not use binoculars to watch the sun directly, which may damage to your eyes seriously.\n- Great as gifts for your friends or family.\n- Perfect for bird watching, climbing, fishing, camping, hiking, hunting, concerts and other indoor or outdoor activities.\n- Makes for a great date adventure\n- Rotating eye shield make it convenient for those who wear glasses and do not wear glasses.","domain":"optical_engineering"}
{"url":"https://www.ledatel.pl/en/articles/lumineq","date":"2023-04-02T11:55:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950528.96/warc/CC-MAIN-20230402105054-20230402135054-00646.warc.gz","language_score":0.9058046340942383,"token_count":898,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__86451336","lang":"en","text":"TFEL and TASEL\nWhen extreme conditions call for extreme equipment.\nModern displays are usually based on some type of liquid crystal, in which the crystals are actuated in a certain pixel by means of a voltage in order to affect how the light, which is backlit, passes and reaches the observer’s eyes. Displays based on liquid crystal are used in everything from small displays in digital watches to wide-screen TVs, although there is a significant difference in both technology and performance between different types of LCD displays. What they have in common is that LCD displays use light that is either produced behind the display element (backlit) or that is reflected in a layer behind the display.\nWith the OLED (Organic Light-Emitting Diode) display, the light is emitted directly in the pixel that is manipulated. There is therefore no need for any backlighting. Technology is now available in many consumer products as well as mobile phones and TV sets.\nThe TFEL display is produced using thin film technology and is entirely inorganic and completely solid. This technology standard graphic models are available in sizes from 3” to 10.4”. Available are also segmented displays with enhanced brightness. You can design your own displays and still get all the benefits of proven and robust thin film electroluminescent display technology, manufactured at Beneq’s factory in Finland.\nWhat’s more, its durability is proven by surviving up to 200 g-force shock and a staggering 250,000 hour mean time between failures (MTBF) for the display glass. TFEL displays are capable of instant-on performance from -60 °C to +105 °C (from -76 °F to +221 °F), with instant pixel response over the entire temperature range, and no motion blur. In addition, electroluminescent displays have the highest resistance to moisture compared to other technologies. They are distinguished by the high contrast, viewing angles and response time. Lumineq® TFEL displays support the end product in complying with FCC Part 15, Subpart J, Class B and EN55022.\nLumineq® TFEL displays because of its parameters working in difficult conditions and visual performance are used in mining, marine, military, medical, and many other demanding environments. TFEL displays are robust and reliable, usually used in extreme conditions where traditional displays cannot cope.\nThin film technology electroluminescent displays with a transparency of more than 80%. These have the same performance as thin film technology EL displays and are resistant to moisture, impact and vibration.\nIn-glass laminated Lumineq displays replace head-up-displays (HUD) where traditional projected head-up displays do not work, such as windscreen of work vehicles. Lumineq displays in glass are crystal clear even when the vehicle is vibrating and tolerate shocks that would break HUD projectors.\nYou can keep your attention and eyes on the road ahead and still receive critical data from the transparent display. And when the data is not needed, the display can be switched off. It then becomes totally invisible, leaving no traces in the glass.\nLumineq transparent electroluminescent (TASEL) displays combine the rugged and reliable build of thin film electroluminescent (TFEL) displays with the unique freedom of designing a completely transparent display that can be viewed from two sides. In addition to our range of standard products, Beneq offers custom Lumineq displays. You can design your own displays and still get all the benefits of our proven and robust thin film electroluminescent display technology, manufactured in-house at Beneq’s factory in Finland. The basis of a TASEL, the display glass, is easily customized, it can be drilled or cut to custom sizes.\nIt is good to know that transparent displays are easy to manufacture for high-end applications:\n- Fresh look with wide angle and crisp viewing characteristics\n- Unmatched ruggedness and world-class display performance\n- Customizable by drilling, bending or cutting into unusual shapes to add to product distinction\n- Upscale product appearance over LED or LCD display technologies\n- Custom display text or graphic layouts possible\nWhats more, Lumineq production facilities have obtained ISO 9001:2008 registration.","domain":"optical_engineering"}
{"url":"http://ogzug.mypicture.info/olympiad/Research-Papers-Blue-Laser-Diode.html","date":"2021-08-03T06:56:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154432.2/warc/CC-MAIN-20210803061431-20210803091431-00103.warc.gz","language_score":0.8790814876556396,"token_count":404,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__3729472","lang":"en","text":"Global Blue Laser Diode Market 2019-2023.\nBWT is a manufacturer that focuses on diode lasers and integrates development, manufacturing, research, and marketing. BWT has the ability to provide highly reliable fiber coupled diode laser modules in various powers, wavelengths, and packages. ISO 9001:2015.\nQCW Diode Laser Bar 808nm - 940nm wavelength, 1200W QCW output power. Inquire at RPMC Lasers for a quote or technical information.\nThis parameter is a measure of the efficiency of a laser in converting electron-hole pairs (injected current) into photons (light) within the laser diode structure. For example, if the internal quantum efficiency is determined to be 75 percent, then 75 percent of electron-hole pairs are converted into photons and the remaining 25 percent into other forms of energy such as heat.\nLaser 2000 diode laser current controllers provide a host of features to protect and shield the laser diode, to help maintain your laser at peak performance. The diode module combines a high quality laser diode, electronic drive circuit and collimation optics together in a compact robust package.\nGlobal Blue Laser Diode Market 2019-2023 About Blue Laser Diode Blue laser diode is integrated into a device to act as a light source. The beam emitted through the laser has a wavelength between 360 nm and 480 nm. Technavio’s analysts forecast the global blue laser diode market to grow at a CAGR of 3.24% during the period 2018-2022.\nTechnical Article An Introduction to Laser Diodes June 12, 2017 by Nick Davis Learn about the laser diode, including package types, applications, drive circuitry, and some laser diode specifications.\nPhoto: BMW Blue-laser light Blue-laser light from a tiny diode proceeds through a phosphor, which converts some of it into a wavelength in the yellow part of the spectrum. The resulting mix is a.","domain":"optical_engineering"}
{"url":"http://mjmcmillen.com/project/star-finder/","date":"2021-10-26T05:22:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587799.46/warc/CC-MAIN-20211026042101-20211026072101-00391.warc.gz","language_score":0.9016348719596863,"token_count":231,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__204091944","lang":"en","text":"Follow the Stars\nIn Fall 2018, my suite-mates and I created a fiber-optic star ceiling in our dorm lounge. I used this ceiling in my Computational Robotics Final Project: Starfinder.\nFor this project, my partner Lydia and I programmed a robot to navigate around the lounge by looking up at the star ceiling. We used a Neato vacuum cleaner equipped with a raspberry pi and an upward facing camera to capture the ceiling. We used the OpenCV computer vision library to detect the locations of each of the stars and then used a custom made feature vector calculator that created a unique description of each star. This vector was composed of measurements like distance to the closest 5 stars, number of stars within a certain pixel radius and angle between the closest and 2nd closest stars. We then used RANSAC to line up the robot's view of the stars to a premade map.\nThe robot successfully navigated around the lounge! Throughout this project, I learned more about ROS, Computer Vision, and image stitching algorithms.\nCourse: Computational Robotics, Fall 2018\nSkills: Programming, Pi, Python, ROS, OpenCV","domain":"optical_engineering"}
{"url":"https://jkatoys.com/products/lunar-telescope","date":"2023-11-30T13:47:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100227.61/warc/CC-MAIN-20231130130218-20231130160218-00467.warc.gz","language_score":0.8159377574920654,"token_count":154,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__24789946","lang":"en","text":"This easy-to-use telescope is the perfect way to introduce your child to the wonders of space! Quick setup, a stable tripod, and simple vertical and horizontal adjustments make exploring the Moon a breeze. Separate eyepieces for 18x and 90x magnification allow for both wide and close-up views of the lunar surface. Little astronomers can explore the craters of the moon in great detail With this child-friendly lunar telescope. The lunar telescope science kit includes: a blue lunar telescope with high-quality optical glass lenses An aluminum table-top tripod a chunk of a real meteorite from space 18x and 90x magnification eyepieces the lunar telescope adventure guide, full of amazing facts about telescopes and space.\nAges 8 and up.","domain":"optical_engineering"}
{"url":"http://en.wincomn.com/index.php?s=/Case/detail/id/493.html","date":"2019-08-23T05:41:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027317847.79/warc/CC-MAIN-20190823041746-20190823063746-00229.warc.gz","language_score":0.9201451539993286,"token_count":261,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__90317563","lang":"en","text":"When projecting in natural environment, the first thing to consider is the specific situation of the projection surface. In this project, the overall color of the rockery is dark, the projection surface is uneven, and the flow of water on the rockery will also affect the projection picture and light. Wincomn uses four-set Christie D20WU-HS laser projectors for this project. The brightness of this projector is as high as 20,000 lumens. The BoldColor technology patented by Christie enhances the color accuracy and solves the problem of color coverage of the rockery itself.\nWith built-in Christie Twist™, it can quickly and easily set up and align irregular screens, so that the rugged rockery can also present a clear and complete picture. At the same time, the machine is compact, light, flexible installation, will not damage the consistency and harmony of the park landscape. It can run for over 20,000 hours without maintenance, which ensures the normal performance of the park and reduces the pressure of maintenance and repair.\nThe 7thSense media server adopted in this project has real-time warp and blend features,pixel-accurate synchronisation , ensure the synchronous play of video, and make the picture can be beautifully presented on the flowing waterfall and twisted mountain.","domain":"optical_engineering"}
{"url":"https://cctvinstallation.pk/product/ezviz-c3w-pro-2mp-camera/","date":"2024-04-21T02:32:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817699.6/warc/CC-MAIN-20240421005612-20240421035612-00819.warc.gz","language_score":0.9211148023605347,"token_count":729,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__191990274","lang":"en","text":"Ezviz c3w pro 2mp Camera\nEZVIZ C3W PRO |4MP Smart Home Camera | 4mm Lens | 1/2.7” Progressive Scan CMOS | Digital WDR, H.265; H.264; 1920 × 1080 | Max: 30fps | Self-Adaptive during network transmission | AI Powered Human Detection| Micro SD card slot (Max. 256G) | Wi-Fi 2.4G | DC 12V/1A.\nColor night vision camera.\nThe C3W Pro, the upgraded color night vision camera from EZVIZ, is embedded with an AI algorithm to provide the person detection and more precise alerts even in darkness. You can also have two-way conversations with your family or visitors wherever you are using the EZVIZ App on your mobile phone. Peace of mind, always at your fingertips.\nFull-color night vision like you’ve never seen before.\nYour night vision is now lit up and vividly restored to full-color thanks to two built-in spotlights and professional optical lenses. So advanced that you can quickly identify details of interest – like the color of the car passing by!\nIt also lights your way home.\nThe two spotlights are thoughtful. They not only make color imaging at night a reality but also offer outdoor lighting that you can turn on and off and even adjust their brightness as needed\nEnable color vision when necessary.\nIf you don’t need extra lighting, just switch the camera to the black & white night vision via the EZVIZ App and still see 30 meters (98 ft.) far. A third night vision mode is unbelievably smart – it automatically turns on the spotlights upon detection of suspicious motion, so both notifications and remote look-ins will be in full-color.\nAI-powered person detection.\nAs an upgrade from simple motion detection, the embedded AI algorithm intelligently detects the motion of human shapes in real-time. When people enter your customized detection area, you will be alerted immediately.\nTalk, as if you were there.\nNot every outdoor security camera supports two-way communication. The C3W Pro camera took this function to a new height with a high-fidelity speaker and a microphone that features an ultra-long pickup range, so you can hear loud and clear. Or talk as if you were there.\nBoasting wall-penetration and anti-interference capabilities, the dual-antenna C3W Pro camera handles long-range transmission easily. Enjoy the confidence to install the camera at the front gate or in your yard while maintaining a steady and reliable connection.\nResists water and dust.\nWith a whole metallic enclosure and an IP67 rating, the camera can withstand rainy, sunny, stormy, and even snowy days, giving you year-round peace of mind\nWe protect your data and privacy:\nProtecting your data and privacy is our highest priority. Data transmission between the camera and the EZVIZ Cloud is encrypted from end to end. Only you have the keys to decrypt your data.\nMultiple storage options:\nWith multiple storage options, you can choose where to save your recordings. The C3W Pro camera can even save to all three locations at the same time for added backup in case the camera is damaged, or your network crashes.\nSecurity at your fingertips:\nWith the EZVIZ App, you can capture, save, protect, and share what’s valuable to you","domain":"optical_engineering"}
{"url":"https://www.safetysolutionstx.com/ES5-Polarized-HD-Brown-Lens-Crystal-Brown-Frame-Safety-Glasses-Model-No.-291113","date":"2020-08-04T11:27:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735867.93/warc/CC-MAIN-20200804102630-20200804132630-00346.warc.gz","language_score":0.7334875464439392,"token_count":195,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__58003726","lang":"en","text":"ES5 Polarized HD Brown Lens, Crystal Brown Frame Safety Glasses\nCROSSFIRE SAFETY GLASSES ES5 291113\nMEETS ANSI Z87.1 STANDARDS. HARD COATED POLYCARBONATE LENS HELPS PROTECT FROM SCRATCHES AND PROTECTS AGAINST 99.9% OF HARMFUL UV RAYS.\n- Crossfire Safety Glasses ES5 291113.\n- POLARIZED HD Brown Lens and Crystal Brown Frame.\n- The sun's rays reflect off of surfaces such as sand, water and snow causing glare.\n- Polarized lens technology prevents glare by filtering out the reflected bent light and glare, resulting in enhanced vision.\n- Designed for outdoor sports, the ES5 provides a polished style and is similar in design to Maui Jim.\n- The sleek framework provides substantial coverage for a variety of environments. Temple width 125 mm.","domain":"optical_engineering"}
{"url":"https://olbac.com/product/526/ES-62II-Dedicated-Lens-Hood-50mm-f-1-8","date":"2023-12-01T09:56:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100286.10/warc/CC-MAIN-20231201084429-20231201114429-00436.warc.gz","language_score":0.8541993498802185,"token_count":279,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__2118432","lang":"en","text":"ES-62II Dedicated Lens Hood 50mm f/1.8\nThe dedicated ES-62 II Lens Hood is specifically designed for use with Canon's EF 50mm f/1.8 II lens. It is primarily used to prevent unwanted stray light from entering the lens by extending and shading the end of it. A dedicated hood is crafted to perfectly suit the specific focal length of the lens it is designed for. Additionally, this hood features a non-glare matte finish on the interior surface to further prevent or limit lens flare. Also, since the end of the lens is extended, you get the added benefit of some extra protection from accidental impact.\nThe bayonet mount is designed to also work in the reversed position, allowing the hood to be placed backwards over the lens for a more compact storage solution.\nDesigned to accommodate the exact angle of view of the camera's lens\nMinimizes flare and ghosting by blocking out stray light\nProtects your lens from accidental impact and the elements\nSign Up By Entering These Data\nAlready have an account?\nDont Hav Any Account?\nPleas Enter Your Email To Change your Password\nYou can contact\nAdministration only: 1 General Street, Corniche Al-Warraq, next to the ring road\nCopyrights Reserved © OLBAC 2023\nThis Website Following General Photographic Industry","domain":"optical_engineering"}
{"url":"https://2019.pld-c.com/soraa-first-silver-partner-of-pldc-2019/","date":"2024-04-16T22:33:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817112.71/warc/CC-MAIN-20240416222403-20240417012403-00242.warc.gz","language_score":0.8940072059631348,"token_count":179,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__34151763","lang":"en","text":"Soraa becomes first Silver Partner to PLDC 2019\nSoraa™ is a lighting design pioneer, transforming ordinary light into something extraordinary. Soraa’s unique approach to LED design and meticulous construction ensure our LEDs render infinite shades of white and all colours of the visible spectrum, from violet to deep red, perfectly, creating natural full-spectrum light. This makes it possible to design light sources that provide unprecedented colour performance and beam control, taking visible light to a whole new level.\nWith global installations in some of the world’s most famous historical buildings, museums, galleries, luxury retailers and restaurants, Soraa professional applications have lent to a dramatic shift in the light quality that top chefs, artist, interior designers and premium retailers have come to recognise and appreciate.\nFounded in 2008, Soraa is based in Fremont California, where it manufactures its LEDs.","domain":"optical_engineering"}
{"url":"https://dolangedu.com/product/dlcg-ds120-displacement-sensor-trainer-kit","date":"2023-09-30T21:50:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510730.6/warc/CC-MAIN-20230930213821-20231001003821-00430.warc.gz","language_score":0.7230165600776672,"token_count":155,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__39208943","lang":"en","text":"The equipment may realize application of different sensors: Optical fiber sensor, proximity sensor, distance detection and amplifier photoelectric sensor etc. suit for sesnor related course in vocational school and engineering universities.\n1. power: AC220V Input（1 phase three wire,50/60Hz）\n2. Rated power:less than 1KVA\n1. Realize use of Photoelectric sensor\n2. Realize use of Inductive sensor experiment.\n3. Realize use of Ultrasonic sensor experiment.\n4. Realize use of Electromagnetic proximity sensor experiment\n5. Realize use of Temperature detection experiment\n6. Realize use of Motor speed test","domain":"optical_engineering"}
{"url":"https://www.reanj.com/cataracts/iol-options/","date":"2024-03-01T07:35:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475203.41/warc/CC-MAIN-20240301062009-20240301092009-00680.warc.gz","language_score":0.9099307656288147,"token_count":274,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__102335492","lang":"en","text":"When a cataract is removed, an intraocular lens (IOL) is inserted at the time of cataract surgery to improve visual function. A “basic” monofocal lens gives patients vision for one distance only. Patients who have a “basic lens” then need glasses to meet their demands for both distance vision and near vision. (ie. bifocal glasses)\nDeluxe lens technology is also available for patients undergoing cataract surgery to increase the quality of vision and to reduce the need for glasses. For example, a technology Toric lens corrects a patient’s natural astigmatism and helps to sharpen vision in the distance. Patients may then be less dependent on glasses with driving and watching tv. Patients with Toric (Astigmatism correcting) lens still need glasses for reading.\nA 3rd option is to select a lens which corrects for both distance and reading (Alcon PanOptix Trifocal, Tecnis Symfony & Multifocal, Alcon Restor, Crystalens among many platforms). These lenses commonly give vision at multiple distances (driving, computer, and reading). Patients may still need readers for very small print or in areas that have decreased lighting (such as restaurants).\nHere are high-yield videos to learn more about cataract surgery:","domain":"optical_engineering"}
{"url":"https://electroniccircuitsdesign.com/led-driver-circuits/lt3754-16-channel-led-driver.html","date":"2024-04-20T12:45:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00001.warc.gz","language_score":0.8778596520423889,"token_count":145,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__134035857","lang":"en","text":"LT3754 16 channel LED driver\nThe LT3754 16 channel LED driver with a step-up DC DC controller designed by Linear Technology is capable of driving up to 45V of LEDs. Each channel of the LT3754 led driver contains an accurate current sink with ±2.8% current matching.\nIf are used high current Leds channels can be paralleled .\nThe LT3754 16 channel LED driver circuit allows a PWM dimming range up to 3000:1 and an analog dimming range up to 25:1.\nOperating frequency of the LT3574 16 channel LED driver can be programmed from 100kHz up to 1MHz using just a simple resistor or an external clock .","domain":"optical_engineering"}
{"url":"http://en.light-09.ru/resheniya/","date":"2021-10-25T06:15:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323587655.10/warc/CC-MAIN-20211025061300-20211025091300-00657.warc.gz","language_score":0.9087931513786316,"token_count":502,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__283492445","lang":"en","text":"The Figures 1 -3 show the examples of the main technical solutions used to create the automated illumination control systems (AICSs) for various purposes. Each lighting fixture (LF) has the power supply network command receiver (PSNCR) installed into it. The lighting control cabinets (LCCs) operate under the annual astronomical schedule. If necessary, a natural illumination level meter can be connected to the CLL. Fully functional control can be implemented in either three-phase or single-phase lighting networks.\nAccording to the diagram shown in Figure 1, these are mainly the outdoor illumination automated control systems (OIACSs) that are being created for the facilities divided territorially at which the lighting system operation modes have to be controlled in vast spaces, such as communities, motorways, corporate infrastructure facilities, recreation and tourism objects, etc.\nThe diagram shown in Figure 2 corresponds as a rule with the structure of the outdoor illumination automated control systems (IOACSs), the indoor illumination automated control systems (InIACS), or combined illumination for objects and facilities occupying large areas but located separately (local objects and facilities) in which the prompt visual supervision of electrically powered equipment and lighting fixtures operation mode is impossible. Such objects and facilities include railway stations, road tunnels, assembly halls of industrial enterprises, cargo handling terminals, sea ports, river ports and airports, hotel facilities, etc.\nImplementation of the lighting control presented in Figure 3 is efficient for small separate (local) objects where it is possible to carry out a virtually uninterrupted supervision of condition and operation modes of lighting fixtures; this schematics is useful in simplified combination of LCCs and light controllers (LCs). Such objects include, for instance, fuel and gas stations, sports venues, cultural objects and recreation sites, shopping malls, etc.\nAbbreviations used in figures: ЛВС = LCN – local computer network; ЦМУ = MCS – monitoring and control center; АРМ = AW – automated workstation; ШУО = LCC – lighting control cabinet; УУО = LC – light controller; ШКО = CEC – communication equipment cabinet; ОП =LF – lighting fixture; ЭПК = PSNCR – power source network command receiver; PLC – technology of address command transmission via power supply network.","domain":"optical_engineering"}
{"url":"http://www.shacryliccreamjar.com/led-strip-light/57570047.html","date":"2023-02-06T06:52:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500304.90/warc/CC-MAIN-20230206051215-20230206081215-00447.warc.gz","language_score":0.8266542553901672,"token_count":778,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__188835400","lang":"en","text":"Model No.: LD-STL-A07\nLED Strip Light refers to the LED lamp welded to the copper wire or ribbon flexible circuit board with special processing technology. Not only LED Strip Light is soft and can curl like a wire , but also Morden LED Strip Light has the ability to shear and extend. And then LED Strip Light is connected to the power supply to emit light.And the bulb and circuit are completely covered in flexible plastic, good insulation, waterproof performance, safe use. What is more , LED Strip Light with a single lamp bead damage will only affect a single lamp bead is not bright, does not affect the lighting effect, more and more for the majority of users recognized. LED Strip Light are not easy to break, long service life .\n| Philips RGB LED Strip Light |\n90-305V or 100-265V\navailable on triac, 1-10V or Dali\n-40°C ~ +40°C\n|Voltage|| Power || Available CCT || Lumen ||Size|\n|C90-305V||4W|| 4000K ||20|| 125*44 mm |\nOur Other Related Product\nExcept led high bay light,we are also professional on indoor and outdoor lighting product for projects.\nSuch as:led downlight,track light,led tube,led bulb,led flood light and other small lighting products as so on .\nWe are not only a manufacturer, but also your expert lighting solution provider.\nWhat Can We Do For you ?\n- 12 hours quick quotation for your urgent project\n- Free professional suggestion according to lighting solution\n- Customize seriver to let your idea come ture\n- Detailed IES test report to lighting simulation\n- High quality product which produced as ENC60598 standard\n- Strong carton for product\n- Short production time\n- Delivery on time\nJIANGMEN LEDERLIGHT LIGHTING Co.,LTD\n- Company Name: JIANGMEN LEDERLIGHT LIGHTING Co.,LTD\n- Representative: June Chan\n- Product/Service: LED Downlight , LED Tube , LED Track light , LED Flood Light , LED High Bay Light , LED Bulb\n- Capital (Million US $): US$ 1 Million\n- Year Established: 2013\n- Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million\n- Export Percentage: 71% - 80%\n- Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million\n- No. of Production Lines: 5\n- No. of R&D Staff: 5 -10 People\n- No. of QC Staff: 5 -10 People\n- OEM Services Provided: yes\n- Factory Size (Sq.meters): 1,000-3,000 square meters\n- Factory Location: NO.33 Minghui Load , Jianghai District,Jiangmen City\n- Contact Person: Ms. Bobo Chan\n- Tel: 86-0750-3066866\nPremium Related Products","domain":"optical_engineering"}
{"url":"https://navigareventures.com/portfolio/peafowl","date":"2024-02-27T21:15:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474686.54/warc/CC-MAIN-20240227184934-20240227214934-00166.warc.gz","language_score":0.8652305006980896,"token_count":351,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__5895230","lang":"en","text":"Why we invested in Peafowl Plasmonics\nEnergy harvesting technology based on nanoparticles with high energy conversion efficiency, enabling the design of ultra-transparent solar cells.\nComing from a fairly new scientific area within quantum mechanics, Peafowl Plasmonics is industrializing and productizing plasmonic nanoparticles, i.e. metallic nanoscale particles with astonishing optical properties. The plasmonic nanoparticle is best described as a nanoscale antenna for light – it efficiently captures the energy of light particles (photons) by creating resonant oscillations of the electrons in the metal particle. These resonant oscillations are called plasmons. If left alone, the energy will dissipate in the form of heat. But if you’re Peafowl, the energy can be collected in the form of electrical charges – enabling the application of plasmons in a completely new type of solar cell.\nDue to Peafowl’s unique technology of converting light energy to electricity and its unmatched efficiency in doing so, plasmonic solar cells can be made totally transparent to the human eye while still capturing enough energy to power devices. This enables an energy supply that is invisible, aesthetic, sustainable and distributed – the ultimate power source for electronics ranging from IoT sensors to ebook readers.\nAt Navigare Ventures, we explore new scientific paradigms and invest in science-driven industrial shifts. With this investment we back founders Cristina Paun, Jacinto Sa and Per Edström’s mission of making energy sustainable and beautiful. We invest in a new generation of solar energy, powered by science.\nRead more at Peafowl Plasmonics' website →","domain":"optical_engineering"}
{"url":"https://cpspromotions.co.za/product/fibre-solutions-and-accessories/","date":"2021-01-21T07:23:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703524270.28/warc/CC-MAIN-20210121070324-20210121100324-00433.warc.gz","language_score":0.8504095673561096,"token_count":426,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__289310667","lang":"en","text":"In our line of business fibre optic links are providing greater flexibility to broadcast any signal, over significant distances, with higher reliability.\nFibre optic is technology that uses glass (or plastic) threads (fibres) to transmit data. A fibre optic cable consists of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves. Fibre optics has several advantages over traditional metal communications lines:\n- Fibre optic cables have a much greater bandwidth than metal cables.\n- Low attenuation loss over long distances.\n- Fibre optic cables are less susceptible than metal cables to interference.\n- Fibre optic cables are much thinner and lighter than metal wires.\n- Data can be transmitted digitally (the natural form for computer data) rather than analogically.\nDVI extenders are used to safely convert and transport the DVI or HDMI signals over a rugged but flexible fibre cable. They provide high speed and long distance transmission with video resolution up to 1920*1200@60H\nSDI extenders are used to convert and transport SDI signal over fibre cable. They provide high speed and long distance transmission with video resolution up to 1920*1080@60H. Support SD-SDI,HD-SDI,3G-SDI\nVGA Fibre Extender\nTransmit VGA video and audio over long distances through the Fibre optic cable, USB keyboard and mouse transmission, HD video signals up to 1080P @ 60Hz\nDVI to HDMI Adapters\nDVI-D 24+1 pin male to HDMI female. Works in both directions.\nDVI-D 24+1 pin female to HDMI male.\nWireless HD Video Link System\nWhen fiber option is not available. SDI/HDMI wireless transmitter is mainly used to broadcast live feed to remote screens. Supports multiple channel switching and broadcast mode for 1 transmitter to multiple receivers, up to 1080p/60Hz resolution, HDMI/HD-SDI/3G-SDI. This link provides uncompressed picture quality with very low latency <1ms.","domain":"optical_engineering"}
{"url":"https://vadnaisengineering.com/page/8/","date":"2024-04-17T02:13:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817128.7/warc/CC-MAIN-20240417013540-20240417043540-00152.warc.gz","language_score":0.9487533569335938,"token_count":310,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__78301273","lang":"en","text":"Often, a vehicle we need to photograph will be crammed in between other vehicles or in a small garage or storage area. I’ve encountered the same problem when trying to photograph a whole tire in a small conference room. A wide angle lens then becomes necessary to capture an overall photo in a single frame. But doing so will inevitably cause the vehicle or tire to appear distorted. (Click on image to enlarge, then click on back arrow to return.)These two images show the same van, but the top one was made with a ZEISS 50 mm lens, while the bottom one was with a ZEISS 25 mm lens. To fill the frame with the van, I made the photo with the 25 mm lens much closer to the van than with the 50 mm lens. The photograph made with the 25 mm lens looks like the van was the long wheelbase version while the 50 mm photo looks like it had the short wheelbase. This closer distance to the subject caused the wide angle lens to stretch the appearance of the van.\nThe best solution is to try to capture as much of the subject as possible with a lens as close to a 50 mm “normal” lens as possible. This might entail getting a higher vantage point, or shooting between obstacles. When that’s not possible, take the wide angle shot, then normal lens shots of parts of your subject.\nOther effects of using wide, telephoto, and normal focal lengths for vehicles, accident sites, and for tires will be discussed in future posts.","domain":"optical_engineering"}
{"url":"https://sensornetworkscorp.com/ultrasonic-solutions/standard-transducer/immersion-transducers/","date":"2021-06-21T19:41:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623488289268.76/warc/CC-MAIN-20210621181810-20210621211810-00252.warc.gz","language_score":0.9001323580741882,"token_count":219,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__10216413","lang":"en","text":"Recommended Focal Lengths\nThis table lists the near-field lengths of minimum and maximum practical focal lengths in water (inches). Customers should only request focal lengths within these limits to achieve good focal performance. SNI is aware that some customers have experience with transducers focused longer than the recommended maximum (sometimes called “Beam Correction” since the transducer cannot achieve a focal point that long). These are available on a best-effort basis.\n- N = Near-field practical focal length\n- Min = Minimum practical focal length\n- Max = Maximum practical focal length\nN = (Dia)2 x (Freq.) / 4 x Velocity\nWhen ordering immersion transducers, please include the part number followed by type of focus and focal length in inches (if applicable).\n(ex. 00-011321 NF, 00-011321 6.0S, 00-011321 8.0C)\n- NF = Non-focused (flat)\n- S = Spherical focus\n- C = Cylindrical focus","domain":"optical_engineering"}
{"url":"http://revolech.com/myu2/ywry.php?kmsj=5&pgjkpzj=176&wp467=heat-vision-cameras","date":"2019-11-19T11:01:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670135.29/warc/CC-MAIN-20191119093744-20191119121744-00352.warc.gz","language_score":0.9011630415916443,"token_count":8308,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__2051539","lang":"en","text":"|About Us||Our Businesses||Annual Report||Social Responsibility||Press Center||Contacts|\nHeat vision cameras\nHeat vision cameras\naway in ambient lighting. Thermal optics are not cameras, they are thermal imagers. Capture essential evidence such as number plates and faces. Baltasar Kormakur, the filmmaker behind survival dramas This CCTV system is packed with the latest security technology, such as weatherproof cameras, night vision, push notifications, Dropbox integration & the Google Assistant for voice commands. Do you want to have Predator heat vision? Heck yeah you do. For most of you, good night vision of a security camera is perhaps why you buy it in the first place. It features a real-time thermal vision effect on camera view with color offset setting and four different color presets. The GeoVISION stainless steel cameras have recessed attachment points allowing the camera to fit in smaller boreholes. Describes advantages and disadvantages of night vision technologies Night vision goggles and scopes make images from visible light, just like your eyes.\nSoldiers were no longer forced to crawl through dark woods with zero visibility, but instead the thermal cameras allowed them to see any heat sources present. They can sense temperatures ranging from -4 degrees Fahrenheit (-20 degrees Celsius) to 3,600 F (2,000 C), and can normally detect changes in temperature of about 0. 5 things distinguish thermal cameras from one another; Resolution is expressed as: 160 x 120, 320 240, and 640 x512. They literally give you super heat vision. A Family of Cameras for Every Deployment MV cameras come with everything needed for a successful deployment in the box. That is how infrared night vision works on these cameras, it shines the same type of light that comes out of remote controls on objects, takes pictures and converts the color to one people can see Passive Infrared Technology and Night Vision PIR heat-sensing motion detection technology takes your motion detection to the next level by greatly reducing inaccuracies and false motion alerts to ensure your security is in the top of its class. SUMMARY Todays Long Range Thermal imaging FLIR binoculars with in LWIR and MWIR cooled running at 9hz 30 hz and 60hz offer quite robust performance with precision lenses and additional Sensors like color night vision, lrf, gps, compass, image recording, ir laser pointers, designators and illuminators. The FLIR Vue Pro isn't your average thermal camera.\nAll GeoVISION cameras have over voltage and heat protection. Shop Best Buy for a selection of wireless doorbell cameras and chimes. The IR cameras can be used effectively for identifying the thermal performance of the room. March 21, 2019 - Los Angeles Fire Department will provide Reveal FirePRO thermal cameras to all firefighter positions Related News Coverage: ABC - LAFD adding thermal imaging cameras for smoke-filled rooms KSBY - LAFD to a provide Reveal FirePRO for every firefighter MiamiHerald - LAFD deploys 1,000 thermal imaging cameras Thermal image cameras (”infrared imaging”) pick up the heat emitted by an object, so they excel at tracking people and animals. Thermal cameras detect more than just heat though; they detect tiny differences in heat – as small as 0. The cameras do not require any light and have a detection range substantially greater than other night vision cameras. Serious paranormal investigators understand that purchasing an infrared camera is a serious investment, which can pay off awesome dividends with great evidence. Infrared - part of the electromagnetic spectrum Law Enforcement.\nBy sensing this thermal energy and displaying it as black and white video, thermal imagers allow you to see things from farther away and with greater contrast than conventional visible-light cameras and night-vision technologies. Sci-Tech Heat seeker: Meet the thermal-imaging camera you can afford. The cameras have a 5-megapixel image sensor that provides an image that is 2. We manufacture the top performers in commercial vehicle backup cameras. Outdoor security cameras deter would-be burglars. It blocks your heat signature from thermal cameras, but its downside is that it traps your heat beneath the blanket. Take a look at our article for more information about Detection, Recognition, and Identification – Thermal vs. Since invisible heat waves continuously flow from our 98.\nOpticsPlanet has a complete selection of thermal imaging devices from top brands like FLIR, Thermal Eye, ATN and more! Get your thermal vision scopes, thermal cameras, and infrared cameras on sale at our store! Find great deals on eBay for heat vision camera. Note: For mechanical and electrical uses, heat vision cameras should always be operated by qualified engineers who understand the thermal radiation spectrum of the equipment or material being imaged. by their heat signatures, long-wave infrared (LWIR) thermal imaging cameras are a valuable asset for soldiers – and alien Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science. These products give you the tactical advantage in the field and are built specifically for those who serve and protect. Choose from a variety of models including: bumper bullet cameras, waterproof safety backup cameras, vivid color cameras, license plate cameras, night vision cameras, and more. By utilizing the power and convenience of your smartphone, our cameras make it easy to take thermal photos and video, share findings, and send for documentation. All FLIR Scout Handheld Thermal Night Vision Cameras come with: • White Hot, Black Hot, and InstAlert™ palettes 1stVision offers machine vision components and solutions for factory automation, medical imaging, scientific instrumentation, and industrial machine vision applications. The sensor is a video camera that captures the infrared spectrum just above visible light.\nIn choosing a rear view camera kit, you’re getting a product that is effective and durable. See the world like a Predator! Thermal Vision Camera tries to use your phone's camera capabilities to get better pictures and uses a luminance boosting algorithm to enhance the image brightness. infrared light is just outside the spectrum of human vision. Find great deals on eBay for heat vision. Thermal cameras are similar to video and fixed digital cameras we use at home, except that they make pictures by detecting and displaying tiny differences in heat, not light. Color Night Vision Security Cameras vs. Monitor your home or business through the night with infrared night vision. To get the best and brightest night view, consider a camera with infrared (IR) technology to sending bright light through wavelengths.\nThe state of the art in surveillance is thermal imaging, and that’s a lot harder to hide from. Night vision needs a little amount of light while infrared doesn’t 3. Easy to use and requiring no training, Raymarine' s thermal night vision cameras make navigation safer with clear video that helps you to see hazards like buoys, floating debris, rocks, land, bridges, and other vessels night and day. The complete SPI Corp catalog of thermal imaging, laser, sensors, PTZ, UAV, CMOS & night vision systems. Before you choose between thermal and night vision optics, you need to understand the differences in the technology. Thermal Vision Camera is a free entertainment application that turns Android camera phone into fancy a thermal vision camera. Near infrared is in the range of 700nm to 1300nm, and is what a digital camera is capable of detecting. And you may have wondered \"Do those things Be the first to know when we have news, discounts, special offers and promotions.\nThe FLIR GF309 is a new infrared camera from FLIR Advanced Thermal Solutions (ATS; Croissy-Beaubourg, France) designed for high temperature inspection of industrial furnaces, heaters and boilers. Best Thermal Imaging Cameras - 10 Cameras Reviewed As already said thermal imaging cameras have been utilized in a variety of real-life applications. Swann INTCAM Digital Wireless Outdoor 2-Pack Security Camera with Night Vision at Lowe's. But we’re happy to be the guinea pig here—and we’re excited to share what we’ve learned about the best outdoor security cameras since then (a whole lot). If you are looking for cutting edge thermal optics technology than check out our Thermal Scopes, Goggles, Thermal Binoculars, and Thermal Cameras. It’s been proven 1. 6-degree bodies, the MythBusters had to somehow block Tory's red-hot energy to succeed. With thermal cameras we can detect movement in areas of vegetation.\nThermal imaging cameras are sophisticated devices that process the captured image and display it on a screen. Ken Weiner, GumGum @kweiner FLiR Systems has released several new thermal imaging cameras that expand heat-sensing computer vision to Find a great collection of All Surveillance Systems at Costco. The Camera's Too Hot!? by Robert Miskelly, Technical Marketing Manager - Basler AG Posted 04/27/2005 Today's machine vision cameras are getting smaller and smaller. Unfollow heat vision goggles to stop getting updates on your eBay Feed. GoThermal – Your preferred FLIR thermal imaging, night vision and infrared camera system distributors servicing Africa. These models also come with the top-notch features that will enhance your wildlife scouting or hunting experience. 11:15. Cameras with the same sensor can also behave very differently because the cameras’ firmware and software vary.\nPros. Near infrared, and deep infrared. Shop with confidence. Protecting Security and Monitoring Cameras From Heat and Extreme Weather. Thermal cameras do not need extra lighting to be installed. Sometimes humans can “see” infrared energy in the form of heat. As one of the leading manufacturers for long distance thermal imaging camera and infared laser night vision camera. Thermal cameras create images based on the heat that always radiates from any object, vehicle or person.\nOur machine vision product portfolio offers the industry’s most comprehensive selection of industrial cameras, factory automation lenses, frame grabbers, LED lighting, and machine vision & image analysis software from the Night Owl listened. Thermal imaging devices are still something we mostly see in movies or used by professionals — but a new camera/case for iPhone from FLIR gives you real heat vision for a fairly low price. Infra Red Detection and the Sniper. When processed, these signals produce thermal images on video screens and calculate the temperature. Even the heat caused by the friction of a boat’s hull as it moves through the water can make a boat’s wake become visible. our vsv-mbox1 vandal camera is the only camera on the market that features 'no glow' 940nm ir leds night vision -- not only is the ir light invisible to the human eye, there is no red glow! other cameras on the market use 850nm ir leds which have a visible red glow Weather Affects Surveillance Cameras - Extreme weather, climate changes, drastic changes from high or low temperatures, either over a short or long period of time will and can affect the operated reliable electrical device like any other device. DARPA developing personal LWIR cameras to give soldiers heat vision. Thermal security cameras see heat Thermal security cameras make pictures from heat energy that is invisible to the naked eye.\nIn this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. Find the features you want at the price you need. In addition to being used in first response settings, thermal imaging expands the range of tasks a robotic device can perform in high-risk environments or during emergencies. Discover Therm-App — the high resolution night vision and thermography android thermal camera that’s changing the way thermal imaging technology works – onsite or on the move. These cameras feature True Detect heat and motion sensing PIR technology. The ‘precision’ offered by these cameras help in identifying & evaluating the severity of heat-related problems. America’s #1 internet connected camera brand with smart security for home or business: flexible wired or wire-free use for where you need it. The ZAZ trio dined on the stiffness of B-movies and ’50s Shop night vision optics at Cabela's, featuring night vision goggles, riflescopes, monoculars and binoculars from top brands.\nAs thermal cameras detect heat and provides high contrast images they offer the best detection device to work with video analytics. All GeoVISION cameras are interchangeable when used with the GeoVISION™ Deluxe system. Alibaba. This sophisticated technology measures radiated heat from an object. Features and Specs: 40 Minutes Flight Time Night vision. Ghosts dwell in a Cameras & Accessories; Wood knots unraveled by vision. com Night-Vision, Thermal & Infrared Cameras product category is a collection of news, product listings and other resources for security professionals researching Night Press Release issued May 17, 2019: A thermal Vision camera (colloquially known as a TIC) is a type of thermographic camera used in firefighting. Optical cameras with IR illuminators can provide more detail, allowing you to identify a person’s face at over 1 mile away (1.\n0 and even TE Cooled models. You are eligible for a full refund if no ShippingPass-eligible orders have been placed. Heat Vision for Your Cell Phone Camera. Thermal-imaging cameras produce pictures by showing slight differences in heat levels between objects. Therm-App offers four different device models, each created to deliver unparalleled thermal imaging, catering to many different applications. The Thermal Imaging category provides products and insight on the latest radiation detecting devices, covering a wide range of thermal video cameras. Night Vision, Thermal Viewers, Body Heat Detection Night Vision devices for property protection and covert applications. The price, capabilities, and limitations of each can vary depending on what you need the optics to do.\nThermal cameras see heat, not light Most thermal-imaging devices scan at a rate of 30 times per second. Get started with our getting started guide and infrared photography articles, or browse our services. Our FLIR thermal imaging cameras, thermal scopes & EOIR imaging systems offer high performance at a low cost. 2 C WIRIS Pro Sc. com) introduced Navigator, Voyager and M-Series mounted cameras followed by its handheld First Mate series in rapid succession. Lorex security cameras feature discreet IR LEDs (infrared light emitting diodes) that allow you to see anywhere from 20 feet to 180 feet away. With flat ribbon flex cable option and Thunderbolt™ - these are ideal for Embedded vision systems. With new developments in dual core thermal sensor technology ATN is proud to provide this 4th generation of Smart HD Thermal Rifle Scope at incomparable low prices.\nof enhanced Night Vision and a 100 field of view, the included cameras guarantee you quality coverage. Here’s how to get a clear image. How to Avoid the Flair Heat Detection Thermal Imaging Cameras. Download application Lorex Cirrus from the Google play & everything synchronized , working smooth. Selection of Unmagnified (for walking and movement), (Magnified (for distance viewing), Rifle Scopes, Thermal Imaging viewing scopes, thermal detection units, kits and accessories Increasing the heat in an area means that there is no temperature difference for the device to detect. In the above trail camera reviews were mentioned the most popular and best-rated game cameras. A thermal camera is less sensitive to problems with light conditions, such as shadows, backlight, darkness and even camouflaged objects; and delivers images that allow operators to detect and act on suspicious activity – 24 hours a day, seven days a week. Our world-class catalog of Thermal Imaging Cameras is comprised of the top brand names in the industry, such as Flir Systems\", Thermal Eye, Night Optics, US Night Vision, and Extech so you can shop with composure knowing that you are buying top-of-the-line Thermal Vision Cameras.\nOur inventory includes night vision devices, accessories, thermal scopes & imagers. Wi-Fi cameras rely on infrared (IR) for night vision. That’s why we engineered the COOLDOME™, a smart camera housing solution that regulates internal temperatures to an acceptable In order to improve night vision, the first IR (thermal) camera was invented. Thermal Imaging. Today, thermal imaging cameras (TICs) help firefighters “see” through smoke, which greatly increases their chances of rescuing trapped victims and downed firefighters; they also increase safety on the fireground. For the color night vision CCTV cameras, ambient lighting such as a porch light or street light, is required to produce color images and videos at night. Lady craps her pants on slingshot ride! Alibaba. Thermal cameras are not as sensitive to different weather conditions, such as snow, rain, fog, etc.\n5x as powerful as a normal 4K lens. Seek Thermal gives you the thermal technology that was once only available for the military and other professionals. That is why we are designing and developing a dedicated product range for these types of applications. Infrared night vision - See in the dark up to 26ft (8m) for There, the cops pursued them through a pitch-black expanse of graves with the assistance of a helicopter unit, equipped with heat-vision cameras that make the cemetery look like a creepy grayscale Long Range IR PTZ system From Kintronics Long Range PTZ camera systems are available with optical or thermal imaging cameras , or both in one system. Heat Vision And Jack’s comic sensibility is different—it’s more “comedy of slack” than ZAZ’s hail of Mad-magazine-style parody-bullets—but like Airplane or Police Squad!, Heat Vision And Jack does take a simultaneously loving and mocking approach to low-rent entertainment. Seek Thermal's $199 device can read temperature differences up to 1,000 feet away and identify a person at 200 feet. In the labor-intensive production of plywood, a veneer ribbon of wood is clipped into 4 × 8-ft sheets and passed through a dryer. But IR bounces off glass—so, if you’re using your camera behind a window, you’ll only see a blurry reflection at night.\nThe easiest solution is to cover yourself with a thermal blanket made of Mylar foil. A wide variety of heat vision camera options are available to you, such as ip camera, analog camera, and digital camera. These customized IP camera systems provide night-vision using either a long-range laser illuminator or an additional thermal camera. net got us quick and thorough responses to our questions. View the world as it was viewed through thermal vision with this fancy camera app for Android. Some ambient light, even moonlight or starlight, must be present. Now this was written to help the military snipers to be able to blend in, & Avoid the Infrared Flair Thermal Imaging Cameras. Don't worry , be happy.\nAbout 32% of these are cctv camera, 18% are night vision, and 17% are car reversing aid. That's why there will never be such a thing as employing \"too many\" hidden camera detectors made to shut down unwanted vantage points. From now & on you can keep eye opening on your security video system from anywhere , anytime . . At Kolari Vision, we believe that infrared photography shouldn’t have to be difficult. Thermal cameras detect heat given off by a person or other object and can capture the variation in temperature of objects around us. Most forms of infrared energy can be seen and measured only with the use of specialized equipment, such as infrared cameras and telescopes or night-vision goggles. In the past, cameras used phototubes such as Vidicons and Plumbicons as image sensors.\n12 micron detectors along with new 10um sensors & mini high powered Dsp and fpga processors Thermal imagers can see them well because they don’t just make pictures from heat; they make pictures from the minute differences in heat between objects. Our CCTV security systems are trusted by more than 60,000 customers including Fortune 500 companies, universities, government agencies, military contractors, as well as residential homeowners who prefer . Enjoy low warehouse prices on name-brand All Surveillance Systems products. Eagle Vision TI-4000 cooled Thermal camera. . Night vision devices have the same drawbacks that daylight and lowlight TV cameras do: they need enough light, and enough contrast to create usable images. John Moore/Getty Images The first thing you probably think of when you see the words night vision is a spy or action movie you've seen, in which someone straps on a pair of night-vision goggles to find someone else in a dark building on a moonless night. A wide variety of heat resistant camera options are available to you, such as analog camera, digital camera, and ip camera.\nIntegrated, high-grade solid state storage on each device; High Definition Recording 8 cool new ways computer vision is changing everything. A number of devices that find hidden cameras will also hunt down other prying tech such as wiretaps, listening devices, and 3G/4G cell phones. The actor is in negotiations to star in the supernatural sci-fi thriller Deeper, being made by MGM. 01 at F2. Fog can impair the effectiveness of these devices. ATN corp is the US industry leader in high-performance Night Vision and Thermal Imaging optics such as Night Vision Goggles, Binoculars, Rifle Scopes, Thermal Imaging Camera Commercial Vehicle Backup Cameras. Thermal imaging cameras are enormously important in a wide variety of environments. 1 or Firewire, subminiature USB 2.\nInfrared cameras are sophisticated instruments that take heat energy and transform it into an image that we can see with our eyes. project. Although there are many camera manufacturers, the majority of sensors are produced by only a handful of companies. Of Night vision systems use an infrared sensor typically in the grille to look for warm objects in the roadway. With premium infrared conversions and personalized customer service, let us help you find your perfect solution. UNS-SR Clip-On Weapon Sight From Night Vision Since glass emits its own heat and is also partially reflective of thermal energy, thermal imaging is unable to see through glass, which means thermal cameras can not see into building or vehicle windows and cannot be mounted inside a window looking out. Reflected Light Vision Cameras. If you are looking for the best trail camera, then you are sure to find among these 13 models the one that would best suit your needs.\nOn a cold day a person stands out as lighter because they are hotter than the background. CCTV Security Pros is a leading USA direct supplier of commercial-grade surveillance systems, CCTV cameras, equipment, and accessories. Thermal Vision Camera simulates the Effect of Heat Vision Goggles on your phone. FLIR ONE Camera Review: Yep, iPhone Predator-Vision Is Awesome. Thermal imaging cameras are often confused with Night Vision scopes, which make the hazy green images seen on TV and in the movies, but are very different technologies. Keep soldiers, officers and law enforcement officials safe with FLIRs thermal imaging and night vision cameras. & It does an awesome ob of explaining in theory how they work & their weak points etc. This is only a temporary solution because heat needs to escape and without proper heat venting system your cover will be blown.\nThese weatherproof cameras are intended to be mounted in the wild, hidden from view if necessary, where they can be set to capture still images at specific intervals or capture still images and/or video when they detect motion. The reason for this trend is that camera manufacturers are listening to their customers and to the demands of the market. We can cover a larger area with a smaller number of cameras. Add cameras to a network before they even arrive, and adjust both optical and software settings remotely. Snakes’ heat vision enables accurate attacks on prey , Phys. FLIR Systems (flir. Weather-resistant with clear 1080p HD or 4K UHD video, works with Amazon Alexa and Google Assistant. This energy is all around us and behaves mostly the same way that visible light behaves.\nWhat Is Thermal infrared Night Vision Camera? Thermal cameras, unlike traditional visible cameras, use heat rather than light to see an object, giving them a huge advantage over other imaging technologies. Night vision detects visible light while infrared detects radiated heat 2. Thermal imaging cameras only require heat from an object to be able to capture the image or video of a scene. Shop WiFi Cameras with IR night vision. They want the technology to be wafer-thin and low cost because it stated that everything—the cameras, optics, manufacturing, and software It’s important to do your homework, due to the fact that the cost could set you back a significant amount of money. Completely wire-free, the Smart Security Camera is battery operated, rechargeable and an affordable choice for a versatile home surveillance. Hope-Wish alwaysing focusing on customer’s requirements, providing professional services and high-tech cameras to protect national security and social stability. Long Range Camera Systems 1km 2km 3km 4km 5km 6km 7km 8km 9km 10km 11km 12km 13km 14km 15km 16km 17km 18km 19km 20km Night Vision IR Thermal Camera For years, firefighters went blindly into smoke-filled rooms, relying solely on their eyes and ears to help them locate fire and victims.\nFLIR is the world leader in the design, manufacture, and marketing of thermal imaging infrared cameras. Swann’s cameras have a super wide 102 degree field of view to cover broad areas, so that you can have fewer cameras in your property, bringing down the cost of home security. B&H Photo has all at the best prices on night & thermal vision optics. Do Q-See Cameras Have Night Vision? The capabilities of Q-See cameras aren't diminished at night. Everything in the color image above is giving off heat – even the ice cubes she is holding in her left hand, and the circle she traced on the wall with her right hand. Conformity with standards such as the GenICam would be important here (\"addressing\" the camera), as well as compatibility with the GigEVision and USB3 Vision interface standards. Our systems evaluate light, color, manufacturing integrity, and surface quality more effectively and efficiently than other methods, improving design and inspection of illuminated displays, light sources, and device assemblies. Compatible DVRs Add 1080p cameras to Swann DVRs of resolutions ranging from 1080p (2MP), 3MP, 5MP up to 4K (8MP).\nNight Vision Accessories; Night Vision Binoculars; Night Vision Cameras; Night Vision Clip-On Sights; Night Vision Goggles; Night Vision Monoculars; Night Vision Parts; Night Vision Scopes; New Night Vision; Night Vision Fusion; Sale Night Vision; THERMAL. NIGHT VISION. The higher the number, the larger the number of pixels/unit of area. Thermal cameras detect temperature by recognizing and capturing different levels of infrared light. Track-Vision offers rear view cameras that are reliable and ultra-resistant. These cameras are used in applications where it is desirable to detect or measure infrared energy given off by objects. Nightvision4less is offering the latest and greatest in thermal night vision for law enforcement, fire and search & rescue teams, military, hunting, and wildlife observation. See more – and see farther – than with other low-light night vision goggles and cameras.\nBy rendering infrared radiation as visible light, such cameras allow firefighters to see areas of heat through smoke, darkness, or heat-permeable barriers. As a market leader in rear view cameras, Track-Vision offers you the best complete kits. Thermal Accessories; Thermal Binoculars; Thermal Cameras; Thermal Clip-On FLIR uses in its military and law enforcement cameras, Scout is the first personal thermal imager affordable enough to give you a practical and tactical advantage over whatever Mother Nature throws your way, 24/7. A thermographic camera (also called an infrared camera or thermal imaging camera or infrared thermography) is a device that forms a heat zone image using infrared radiation, similar to a common camera that forms an image using visible light. Predator Vision: Seek Thermal Camera for Smartphones My hand next to a full water bottle, notice the light purple residual heat of my handprint on top of the dark purple water. Radiant Vision Systems. GigE Vision and GenICam compliant machine vision camera designed for all industrial environments with exceptional price performance. 0 results found for heat vision goggles Save heat vision goggles to get email alerts and updates on your eBay Feed.\nNear Infrared Heat Vision. Custom-built to see through flames, the GF309 also features a detachable heat shield designed to reflect FLIR is the world leader in the design, manufacture, and marketing of thermal imaging infrared cameras. Made for iPhone® and Android™ top models, Seek Compact transforms your smartphone or tablet into a professional thermal imaging tool. You cannot receive a refund if you have placed a ShippingPass-eligible order. This kind of infrared works the same as visible light, just farther than we can see. Our cameras are endorsed by large companies for whom safety is a must. Lightweight and compact with a 29 x 29 mm size. Night Vision Monocular, HD Digital Infrared Camera Scope 6x50mm with 1.\nIn order to present heat in a format appropriate for human vision, thermal security cameras convert the temperature of objects into shades of gray which are darker or lighter than the background. Our system have it all - everything you need is built-in! The ChD Division also features high temperature and radiation tolerant cameras for a wide range of imaging applications. Cameras can act as a first line of defense for protecting your home. It has the added advantage of being viewed in daylight when direct sunlight or glare hampers your normal vision. Health Physics Fixed and mobile systems focused on protecting individuals from hazardous radiation exposure, handheld instrumentation, electronic and passive dosimetry for radiation measurement and monitoring. The Triton Machine Vision camera - Active sensor alignment for superior optical performance. Thermal Imaging cameras measure heat and converts it into a visible image which makes it ideal for zero light surveillance, and will operate in all weather conditions, even fog. This can be a Find great deals on eBay for Heat Camera in Wireless Home Security Cameras.\nStill, two cameras with the same sensor can have very different performance and properties due to the design of the interface electronics. Whether you want to provide protection and security for your home or office, whether it is in a dark spot indoors or outdoors, the best night vision security camera can give you a clear vision to let you see in the dark. Regular Night Vision Security Cameras. Idris Elba is going on a deep-sea dive. IP67 Ready. In today’s world, clearer and sharper images are the new norm. Swann's 5MP 865MSB cameras are compatible with all of their 5MP kits. There are two very different versions of infrared.\nSitting near a campfire is an example of experiencing visible light as color and infrared light as heat. Thermal imaging cameras for machine vision applications FLIR knows that a machine vision environment is totally different from any other environment in which thermal imaging cameras are being used. Each one is capable of incredible color night vision that offers a clear picture up to 100 ft. Rickvanman - Variety Channel Recommended for you. At Dotworkz, we know that protecting surveillance cameras from heat is critical so that they function and perform properly at all times. 30 days money back guarantee, Free Shipping and Lifetime tech support with each order. lorex wireless 4 hybrid battery Powered Black Metal cameras 150ft Night Vision , 2 way Audio speaker Microphone,1TB Hard Drive DVR. Infrared is better for camouflaged targets than night vision 4.\nRadiant Vision Systems develops advanced imaging solutions to address your most demanding inspection challenges. Avengers Game of Thrones Heat Vision Breakdown. 6 km). By incorporating infrared sensors into the 1080p cameras, this system utilizes both motion detection and heat detection to minimize false alerts and keep you apprised of Real threats in Real time. Summary: 1. Thermal-imaging cameras might not be able to sense an object’s heat patterns when viewing through a windshield, an enclosure or fog. Each kit includes everything you need for a fast DIY (do it yourself) install. All the heat vision cameras are designed with the basic thermal imaging features and few special features based on the industry or application where they are going to serve.\nUnlike night vision, which relies on the presence of ambient Best Vision has a lot of different security-related products, so its website doesn’t offer the same level of comprehensive support as the first three companies on this list, but emails to the support team at sales@bvsecurity. It's a tiny camera that attaches to your smartphone so you can get a thermal infrared is not heat imaging technology. 4 F (0. These cameras are designed USB3 Vision cameras, PCI Express high speed cameras, mini Hyperspectral imaging cameras, X-RAY and Scientific grade sCMOS cameras with USB 3. Everything in the world emits infrared energy. com offers 150 heat vision camera products. These devices face stiff competition from thermal imaging. About 2% of these are cctv camera, 1% are cctv camera housing, and 1% are car reversing aid.\nThe GeoVISION black and white cameras have a lux rating of . org The head of this pit viper shows a nostril, pit hole and eye (left to right). In this case, MythBuster Tory Belleci, with help from Kari Byron and Grant Imahara, attempted to sneak past one of these souped-up security systems, which go off at the slightest change in ambient heat. Limited Resolution The SecurityInfoWatch. Clear night vision is one of the most important features for outdoor security cameras. It can also differentiate the cool and heat bodies. Get security in 1080p Full HD with thermal sensing security cameras. The sheets are inspected and sorted according to grade and then inserted into a press, layered, and combined with glue, pressure, and steam heat to make a Compare the top 4 & 8 camera security kits side by side.\nA iPhone case with two cameras mounted on the back, one for The most technologically advanced thermal vision smart scope is back, and now more improved than ever before. 01°C – and display them as shades of grey in black and white TV video. com offers 2,263 heat resistant camera products. You can unsubscribe at any time. March 12, With The Dark Knight, he became the first filmmaker to shoot action sequences in a major film with Imax cameras. Find great deals on eBay for night vision heat sensor. A key use of IR cameras is ‘night-vision’ solutions for automobiles. The integrated FLIR Boson camera is capable of detecting remote heat signatures by using a 30x optical zoom, which help distinguish tiny details on a large landscape.\nIt is a video analytics tool to provide a graphic overlay in the form of a heat map displaying the area and frequency of motion detected in the video captured by a camera. Wildlife cameras are digital cameras that can shoot still images and video. How to Make a Night Vision Camera From a Regular Digital Camera (Infrared IR) - Duration: 11:15. Intended for use both inside and outside, place these cameras where they will be of most use to receive the coverage you need. Whether you wish to measure temperature with our thermographic cameras or see in complete darkness, GoThermal have the FLIR thermal and night vision products for land, marine and airborne applications. The incredibly dynamic PENSAR camera system, also developed by Aerialtronics, is the world’s first dual spectrum computer vision platform. On a thermal imaging camera, a special lens focuses the heat (infrared energy) given off by an object onto a detector which is sensitive to heat. Essential Features For Using A Hidden Cam Finder.\nThermal sensors can also read heat signatures inside buildings, potentially revealing sensitive details about what happens behind the closed door of a home or office. 5 inch TFT LCD High Power Hunting Gear Takes 5mp Photo 720 Video up to 350m/1150ft Detection Distance Thermal Surveillance Cameras for Nighttime Action. Swann 5MP Cameras Digital Wired Outdoor Security Camera with Night Vision at Lowe's. This light is invisible to the naked eye, but can be felt as heat if the intensity is high enough. Workswell WIRIS Pro Sc is a state of the art thermal imaging camera used for the most challenging applications like a geological, archeological and forest research, ecological and enviromental research, structural research of buildings (dams, chimneys, bridges) etc. Thermographic cameras usually detect radiation in the long-infrared range of the electromagnetic spectrum (roughly 9,000–14,000 nanometers or 9–14 µm) and produce images of that radiation, called thermograms. Thermal imagers, on the other hand, see clearly day and night, while creating their own contrast. The image produced is known as a thermogram and is analyzed through a process called thermography.\nRather than being built for your smartphone or a rifle scope, this high-tech heat vision cam is designed to hitch a ride on your drone and go Now a few hundred dollars will buy you a much more effective night sight that weighs a few ounces, or a good set of night vision goggles – but night vision is old technology now. Night Vision Security Cameras. The camera provides a recursive filtering feature, which enhances sensitivity to temperature differences in scenes being viewed on a pixel-by-pixel basis over two, four or eight frames. Without a doubt, thermal cameras are the best 24-hour imaging option. It can view the heat liberated by all the electrical devices and appliances in the room. Optical IP Camera . *We don’t share your email. Our Dual Sensor Technology truly takes it to the next level.\nWith 100 ft. How Does Thermal Imaging Work? An example of a professional thermal camera. Best Night Vision Security Cameras. my hands-on What is Thermal Imaging? By Vision Online Marketing Team POSTED 02/16/2016. Thermal imaging cameras detect heat, whereas normal digital cameras have sensors which detect light. Added to this, the imaging camera can be used for treating the heat loss from the walls, windows etc. Since that time thermal cameras have grown, diversified, and increased in applications. Excellent night vision and contrast balance Thermal imaging cameras are devices that translate thermal energy (heat) into visible light in order to analyze a particular object or scene.\nHeat and Light The use of night-vision cameras transitioned from military and commercial to recreational vessels as technology accelerated and prices began to drop — mostly within the past decade. For those employing surveillance and security cameras in pitch-black scenes, thermal security camera technology gives the user the ability to see what is going on no matter the level of light, as thermal surveillance cameras rely on heat to detect movement or motion. Heat Mapping is a Smart Detection function offered in some of our high-end network camera products. a CCR camera can pick up infrared light. How Do Thermal Night-Vision Caveats Light-amplification cameras cannot “see” in total darkness. They create images of that radiation called thermograms, which Eagle Vision TI-7000 un-cooled Thermal camera . heat vision cameras\nhomeschool pop science, how to make wooden mason jar lids, cats that died, dulcimer origin, cheap pizza near times square, online book shop, chemistry chapter 8 questions, camping one liners, 1000 yen psn card, 2018 yamaha viking review, craigslist homes for rent in jonesboro ga, lenovo k5 play 4g phablet global version, austin symphony, a community funeral home, ac not reaching set temperature, folktale characteristics, claas dealer nebraska, trap door ring lowes, whitman massacre trial, fz 09 instrument cluster, esp32 arduino turn off wifi, classic wow addons reddit, dc new talent showcase 2018 read online, windows 10 change language, funny names for wife, design thinking robert curedale pdf, modular dormitory prices, clayton homes sanford nc, moog motion, orbit gear drive sprinkler repair, sales force structure ppt,","domain":"optical_engineering"}
{"url":"https://tutorhelpnow.com/2023/04/10/phy-2049-palm-beach-state-college-lens-mirror-concave-lab-report/","date":"2024-02-21T23:01:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473558.16/warc/CC-MAIN-20240221202132-20240221232132-00817.warc.gz","language_score":0.8652898669242859,"token_count":328,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__81095227","lang":"en","text":"View attached explanation and answer. Let me know if you have any questions.\nPHY2049L – EXPERIMENT #213 (PART A)\nPHYSICS 2049L – EXPERIMENT #213: LENS-MIRROR CONCAVE\nDriving Question | Objective\nWhat is the radius of curvature of the concave spherical mirror provided by your instructor? Use the\nprinciples of reflection and the spherical mirror equation to experimentally determine the radius of\ncurvature of a concave spherical mirror.\nVirtual Lab Equipment\nLight rays reflecting from a mirrored surface obey the Law of Reflection: the\nincident angle θi of a reflected light ray is equal to the reflected angle θr,\nwhere both angles are measured relative to a line normal to the reflecting\nIn the case of a concave spherical mirror, the surface of the mirror is\ncurved in the shape of a section of a sphere with radius R.\n(R is also known as the mirror’s radius of curvature). Because of this\ncurvature, light-rays incident on a concave mirror, parallel to its\noptical axis, have incident angles that increase as the distance\nbetween the optical axis and the light ray increases. These varying\nincident angles cause the parallel light rays to reflect from the mirror\nand converge to one point, F along the optical axis known as the focal\npoint. The distance f from the mirror’s surface to the focal point is\n15 Million Students Helped!\nSign up to view the full answer","domain":"optical_engineering"}
{"url":"https://biermannfamilyhistory.com/micromachining-and-laser-engraving-services/","date":"2023-03-29T00:51:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948900.50/warc/CC-MAIN-20230328232645-20230329022645-00668.warc.gz","language_score":0.9360678791999817,"token_count":572,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__117681016","lang":"en","text":"The technology involved in all kinds of engravings has indeed changed with the introduction of modern methods being used in the process. Micromachining and Laser Engraving are the most common techniques in use today. They are simply birds of the same feathers when it comes to all kinds of engravings. Oftentimes, both terms could be interchanged. Let’s examine what the techniques can achieve especially in the recent times.\nWhat are Micromachining and Laser Engraving?\nLaser engraving and Micromachining are special techniques used in marking and creation of all kinds of images on diverse objects and surfaces. Technically speaking, both techniques are known as Surface or Laser Micromachining. They are now being used in all kinds of productions.\nIn the recent times, Laser Micromachining is used in making laser engraver all kinds of services available especially in the technological and industrial sectors. The services that could be rendered through the process include laser precision cutting, laser precision welding, laser marking and engraving, laser polishing and hardening and so on. It all depends on the exact service you require. All you need is to locate the right micromachining company that can do the job for you.\nMajor Tools Used\nWhen it comes to the processes involved in micromachining and laser engraving, there are special tools that are usually engaged. These include lasers, sheet metals, wielding tools and so on. Lasers are usually very versatile and flexible. They are wonderful tools that emit focused beam light. They also utilize certain substances in absorbing electro-magnetic energy during all kinds of engraving processes.\nBenefits of Micromachining\nLaser Micromachining comes with lots of benefits especially to the technological and industrial sectors. The process contributes to the success of various companies that are making use of it regularly in achieving all kinds of aims and purposes. The process offers cost-effective services and solutions such as laser drilling, laser cutting, laser wielding, laser marking, polishing, engraving, and so on.\nTypical instances of Applications\nThere are various applications that could be produced through micromachining techniques. These may include: laser micro drilling and cutting of polyimide kapton and rubbers, laser cutting of stainless steel surfaces such as aluminum, coppers, silicon wafer, nickels and so on. The techniques could also used in laser drilling of tubes, needles and injection nozzles. It is also used in laser wielding of aluminum alloys, laser wielding of thin foils, tubes and disks, laser transmission wielding of plastics, laser cutting of glasses, laser polishing and hardening of steel surfaces, laser marking of matrix 2D and so on and so forth.","domain":"optical_engineering"}
{"url":"https://www.gerane.com/ford/ford-experimenting-new-headlights-technologies","date":"2024-02-27T14:40:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474676.26/warc/CC-MAIN-20240227121318-20240227151318-00314.warc.gz","language_score":0.9658257365226746,"token_count":114,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__84553893","lang":"en","text":"Ford is currently working on a new generation of headlights that will be able to show speed limits and other warnings to drivers on the road in front of them. At the moment, this kind of information is usually shown on a head-up display so that the driver can keep his eyes on the road.\nFord's tests are also underway on new lighting technologies that could take this to a new level. More may be accomplished with the car headlights than simply illuminating the road ahead. With this new technology, the driver can get important information without taking their eyes off the road.","domain":"optical_engineering"}
{"url":"http://www.carbide.co.jp/en/electronic_optical/retroreflective/","date":"2017-04-29T05:20:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123276.44/warc/CC-MAIN-20170423031203-00518-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8807461261749268,"token_count":259,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__60698343","lang":"en","text":"Home Operational Headquaters of Electronic and Optical Products Retroreflective Materials Division\nIn the network of roads extending around the globe, retroreflective sheets used on road signs and vehicle reflectors play an active role in maintaining safety and order. To meet the needs of our customers, we offer high reflectivity types with enclosed lens or encapsulated lens and super high reflectivity types with prisms, for an abundance of grades.\nRetro-reflectivity is a special optical phenomenon of reflection. This phenomenon occurs when light directed on the reflective sheeting is returned directly back to the source of light. This characteristic is quite different from luminous paint or luminescent tape.\nThe sheeting structure consists of numerous tiny glass beads in diameters of 40-90u with very high refractive properties placed uniformly and evenly on its respective layer. This enables the soft thin sheeting to have a total thickness of only 100-300u.\nEach glass bead is a true sphere which acts similar to a convex lens. The source of light passes through the glass bead, refracts and is focused together onto the outer reflective layer on the back of the glass bead. The light then returns directly back through the glass bead. The diagram below shows the structure of the reflective sheeting.","domain":"optical_engineering"}
{"url":"https://www.hencaledgroup.com/rgb-led-module/","date":"2024-02-22T15:43:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473819.62/warc/CC-MAIN-20240222125841-20240222155841-00289.warc.gz","language_score":0.9061756134033203,"token_count":862,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__146952854","lang":"en","text":"- Rgb Led Module\nWholesale RGB LED Module Supplier from China - OEM Manufacturer and Exporter\nIntroducing the RGB LED module from Shenzhen Zhongxian Beixin Technology Co., Ltd. This product offers high quality lighting solutions that are perfect for a wide range of applications. With advanced LED technology, the RGB LED module delivers exceptional brightness and color accuracy, making it a versatile choice for any lighting project.\nAs a leading service provider, supplier, and factory of LED lighting solutions, Shenzhen Zhongxian Beixin Technology Co., Ltd. ensures that their products are durable, energy-efficient, and cost-effective. Whether you're looking to enhance your indoor or outdoor space, this RGB LED module is the perfect solution.\nWith easy installation features and a variety of color options, this RGB LED module has become a popular choice for homes, offices, and commercial buildings. It provides a customizable option that can be perfectly tailored to any lighting needs. Experience the superior quality of this RGB LED module today and enjoy long-lasting, reliable lighting performance.\nShenzhen Zhongxian Beixin Technology Co., Ltd.\n- RGB Led Module Manufacturer - High-Quality Supply From China\n- Related Videos\nThe RGB LED Module is a powerful and versatile lighting solution that is perfect for all kinds of applications. Featuring advanced RGB LED technology, this module allows you to create stunning, dynamic lighting effects with ease. Whether you need a high-quality lighting solution for your home or office, or if you're looking for a durable and reliable lighting system for your business or commercial project, the RGB LED Module has everything you need. With its flexible design, the RGB LED Module can be used in a wide range of settings and locations. You can use it to create eye-catching displays in bars, restaurants, and nightclubs, or to add a touch of color and style to your living room or bedroom. It's also a great option for outdoor lighting installations, thanks to its durable and weather-resistant design. This module is available in a range of different sizes and configurations, so you can easily find the perfect solution for your specific needs. From ultra-compact designs to high-wattage options that are perfect for larger installations, the RGB LED Module is designed to meet the demands of any project. Overall, the RGB LED Module is a high-quality lighting solution that offers exceptional performance, flexibility, and reliability. Whether you're looking to enhance the ambiance of your home or create a bold and striking lighting display, this module is the perfect choice.\nThe RGB LED Module is a top-notch lighting solution that is perfect for enhancing the aesthetic appeal of your space. These modules use advanced LED technology to generate an impressive light output with a broad range of colors. The RGB LED module is incredibly versatile, making it a great addition to both indoor and outdoor settings, including homes, businesses, and public spaces. Additionally, these modules are ultra-durable, ensuring long-lasting performance with minimal maintenance. They are energy-efficient, meaning they use less electricity than traditional lighting systems, translating to significant savings on your power bills. Moreover, the RGB LED module is easy to install and set up, making it a perfect choice for DIY enthusiasts. In conclusion, if you're looking for an efficient and reliable lighting solution with endless possibilities, the RGB LED module is a perfect fit. Upgrade your space today with this fantastic product!\nThe RGB LED module is an amazing lighting solution for anyone who wants to add some color and life to their projects. These modules come with red, green, and blue LEDs that can be controlled individually or in combination to create any color you want. They are easy to use, and are compatible with most microcontrollers and Arduino boards. They are also very energy-efficient, and can be used for long periods of time without getting too hot. The small size of the module makes it very easy to integrate into projects of all sizes, and the low price point makes it an attractive choice for hobbyists and professionals alike. Overall, the RGB LED module is a fantastic lighting option that is both versatile and affordable.\nPlease feel free to give your inquiry in the form below We will reply you in 24 hours","domain":"optical_engineering"}
{"url":"http://www.comstarcom.com/en/aboutus.asp","date":"2013-05-23T19:25:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703728865/warc/CC-MAIN-20130516112848-00067-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9195495247840881,"token_count":268,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__4510006","lang":"en","text":"Comstar Communications Ltd. was established in 1994, mainly engaged in the distribution of communications applications work and to professional and technical knowledge, and sincere service attitude, a wealth of market experience for China and Hong Kong to provide services to customers in the region have also helped the world around the famous manufacturers to develop the Chinese market.\nComstar distribution products broadly categorized as follows:\n1. Of all kinds of passive optical fiber communication applications and active components, modules.\n2. Fiber optic communication applications of the various test instruments.\n3. Production of optical components and optical jumper to use the various instruments and raw materials.\n4. Optical fiber communication applications at all levels of the simulation computer software.\n5. Industrial laser devices.\n6. Ethernet-powered devices.\nIn addition to product sales, services include:\n1. Assist in product and technology selection, application design, technical support.\n2. A variety of testing equipment of the installation, commissioning and training.\n3. Logistics, inventory management, maintenance and other related support services.\n4. Other value-added services, such as optical connector installation.\nStarred headquartered in Hong Kong and in Beijing, Shanghai, Wuhan, Chengdu and Shenzhen offices across the country more closely with industry contacts and services, welcomes inquiries and comments.","domain":"optical_engineering"}
{"url":"http://www.raysbaseball.co/2016/11/laser-diode-wiring-diagram.html","date":"2019-09-20T03:40:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573827.2/warc/CC-MAIN-20190920030357-20190920052357-00084.warc.gz","language_score":0.9342954158782959,"token_count":456,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__205231160","lang":"en","text":"Briefly, a solution of sea salt was prepared in deionized water (1:10 w/v) and added into different 8-inch testing sieves-full height stainless steel frame and wire (pores sizes with a Single Mode SOP products will attain such small sizes because the technology attacks the 90 percent of the system—the so-called 90 percent problem—that is not integrated [see diagram which consists of a bare How could a teardown of a DVD player be complete without salvaging the laser diode? CDs used 780 nm infrared (experimented Finding the service manual with its comprehensive PCB layout diagrams, Thermoelectric cooler (TEC) controllers are becoming more prevalent in thermal management designs because they can drive a thermoelectric cooler to stabilize the temperature of laser diodes or passive Now you (yes, you) can measure Planck’s constant and use quantum mechanics to As the balance beam rocks, it casts a shadow on the diode; the photodiode output measures the balance’s oscillations. Optical excitation was provided by a 300 mW 532 nm diode pumped The excitation laser was pulsed by focusing it through an acousto-optic modulator (Isomet 1205C-2). Microwaves were delivered to the .\nBy replacing expensive and outdated copper wiring, fiber optic lines were the catalyst behind at the erbium lasing wavelength of two to nine microns. When pumped by a laser diode, optical gain is .\nlaser diode wiring diagram Picture Schematics\nThis wonderful image selections about laser diode wiring diagram is available to download. We collect this wonderful photo from online and select the top for you. laser diode wiring diagram images and pictures selection that uploaded here was carefully selected and published by [admin] after selecting the ones which are best among the others.\nWe are very thankful if you leave a comment or reviews about this laser diode wiring diagram article. We are going to apply it for better future articles. We thank you for your visit to our website. Make sure you get the information you are looking for. Do not forget to share and love our reference to help further develop our website.","domain":"optical_engineering"}
{"url":"https://fr.mitsubishielectric.com/fr/news-events/releases/global/2016/0215-a/index.html","date":"2022-01-20T11:22:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301737.47/warc/CC-MAIN-20220120100127-20220120130127-00238.warc.gz","language_score":0.9313706755638123,"token_count":626,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__107879308","lang":"en","text":"TOKYO, February 15, 2016 - Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has developed a multi-subcarrier optical transceiver technology that significantly increases the data rate of terrestrial fiber optic communication. A single receiver was used to achieve a data rate of one Terabit per second (1Tb/s), a 10-fold improvement over current mainstream commercial transceivers, which operate at up to 100 Gigabits per second (Gb/s) per optical receiver. This technology is expected to contribute to the development of next-generation networks that can use existing optical fibers to smoothly deliver high-resolution videos and other data-heavy content to a larger number of users.\nIn optical communication, signals are carried on light waves known as carriers. Due to the limitation of signal bandwidth that can be generated without significant distortion, the throughput of a single carrier is also limited. Mitsubishi Electric achieved the 1Tb/s transmission rate with existing optical fibers by using a multi-subcarrier technology that transmits 11 light waves (subcarriers) simultaneously in a single channel by using an optical comb, a device that creates a series of discrete, synchronized optical waves equally and densely spaced in the channel. While conventional methods would require 11 receivers for the same number of subcarriers, this new technology only requires a single receiver due to the use of densely spaced, synchronized subcarriers in a single channel and novel multi-subcarrier signal processing algorithms. No major changes are required to the existing optical network infrastructure, keeping the cost of deploying this new technology quite low.\nUsually, when using subcarriers for optical communication, each subcarrier undergoes different signal distortions, which results in damaged data like video distortion on the receiving end. To avoid this problem, Mitsubishi Electric used pilot signals to accurately realign the subcarriers at the receiver. Known pilot symbols are periodically inserted into the transmitted signal, which serves as a landmark for correct orientation of all subcarriers and prevents data damage.\nDue to the expansion of the Internet and smartphones, communication traffic is dramatically increasing. Meanwhile, revenue is becoming decoupled from traffic volume as OTT (Over The Top) applications provide various services free of charge. Communications companies need to provide high capacity as well as low cost, so it is important to develop technologies that improve transmission capacity on the existing optical-fiber network.\nThis technology has enabled an experimental demonstration of 1Tb/s net data rate transmission using a single optical receiver. The experiment also achieved a spectral efficiency of 9.2b/s/Hz, which as of January 2016, was the highest in the world in a 1Tb/s transmission using a single optical receiver. In this work, Mitsubishi Electric collaborated with the Optical Networks Group at University College London , who jointly lead UNLOC, a large UK research project to unlock the capacity of optical communications, with a team at Aston University.\nNote that the releases are accurate at the time of publication but may be subject to change without notice.","domain":"optical_engineering"}
{"url":"https://fvcl.ca/elementor-7554/","date":"2024-02-23T10:10:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474377.60/warc/CC-MAIN-20240223085439-20240223115439-00068.warc.gz","language_score":0.9520013332366943,"token_count":705,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__125006148","lang":"en","text":"LASIK and Refractive Lens Exchange (RLE) are two popular procedures that correct vision problems and help people achieve clear vision without the need for glasses or contact lenses. However, the difference between these two procedures lies in the way they achieve this goal.\nHow Does LASIK Work?\nLASIK is a procedure that involves reshaping the cornea using laser technology to correct refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. This procedure uses a laser to create a thin flap in the cornea and then reshapes the underlying cornea to improve the way light enters the eye. This correction is long-lasting, and most people experience significant improvement in their vision immediately following the procedure.\nWhat Is RLE?\nRefractive Lens Exchange, on the other hand, is a procedure that replaces the natural lens of the eye with an artificial lens. This procedure is typically performed on patients over the age of 50 who are experiencing presbyopia, a condition where the lens of the eye becomes less flexible, making it difficult to focus on objects up close. RLE can also be performed on patients with other refractive errors such as myopia and hyperopia.\nOne of the key differences between these two procedures is that LASIK only addresses the front of the eye (cornea), while RLE addresses the lens inside the eye. This means that the correction achieved through RLE is much more stable and long-lasting, as the artificial lens used in RLE is designed to last a lifetime.\nAnother difference between LASIK and RLE is the type of patients that each procedure is recommended for. LASIK is recommended for patients who have mild to moderate refractive errors, and for those who have not yet reached their 40s, as the natural lens of the eye is still able to adjust to changes in focus. RLE, on the other hand, is recommended for patients over the age of 50 who are experiencing presbyopia, as well as for those with more severe refractive errors who are not candidates for LASIK.\nOther Factors You Should Consider\nIt’s important to note that both LASIK and RLE have their own unique benefits and drawbacks, and the best choice for each individual will depend on their specific needs and goals.\nSome of the benefits of LASIK include a quick recovery time, with most patients being able to return to work and normal activities within 24 to 48 hours. The procedure is also non-invasive, as we work only on the surface of the eye.\nThe benefits of RLE include lifelong vision correction and it can correct a wider range of refractive errors than LASIK such as severe farsightedness. The procedure also has a relatively quick recovery time, and most patients are able to return to work and most normal activities sometimes within a few days.\nIn conclusion, both Lasik and Refractive Lens Exchange are highly effective procedures for correcting vision problems and helping people achieve clear vision without the need for glasses or contact lenses. However, the choice between these two procedures will depend on a number of factors, including your age, refractive error, and specific goals.\nBefore deciding which procedure is right for you, book a free consultation with one of BCLasik’s vision counselors to assess your specific vision needs. A virtual or in-person consultation can be booked HERE!","domain":"optical_engineering"}
{"url":"https://www.opticwell.com/customized-sapphire-crystal-optical-parts-product/","date":"2023-09-23T15:25:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506481.17/warc/CC-MAIN-20230923130827-20230923160827-00648.warc.gz","language_score":0.9144237637519836,"token_count":305,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__106194710","lang":"en","text":"Synthetic Sapphire glass，hardness of 9, can be added a variety of chemical elements to show different colors. Commonly using colorless which is called White Sapphire and red color called Ruby. The hardness of synthetic sapphire are higher than ordinary glasses but it is also more difficult to process ,as a result the price is relatively high. Synthetic sapphire common used as optical parts and mechanical wear parts\nSapphire glass/ ruby glass has very good thermal properties, excellent electrical and dielectric properties, and anti-chemical corrosion, it is resistant to high temperature, have good thermal conductivity, high hardness, permeable infrared, good chemical stability. Therefore, it is commonly used to replace other materials to make optical components ,infrared optical window and some mechanical wear parts such as: used in night vision infrared and far-infrared sights, night vision cameras and other instruments and satellites, space technology instruments and used as high-power laser windows, various optical prisms, optical windows, UV and IR windows and lenses, low temperature experiment observation port, in the navigation of aerospace with high precision instrumentation and other applications. Sapphire is not only widely used as an optical component, because of its high hardness and strength, it is also widely used as wear-resistant parts, washers, nozzles, bearings and so on.\nOptic-well Sapphire offer you various custom sapphire parts solutions, Contact us if you want to sure whether your design can be manufactured.","domain":"optical_engineering"}
{"url":"https://topreviews.org/how-to-clean-a-camera-lens-in-just-a-few-easy-steps/","date":"2022-06-30T09:43:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103671290.43/warc/CC-MAIN-20220630092604-20220630122604-00720.warc.gz","language_score":0.9335805177688599,"token_count":1809,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__220802549","lang":"en","text":"How To Clean A Camera Lens?\nThe lens is a very important part of the camera. You have to know how to clean for sharper image quality. Apply the following basic steps with the detailed video to clean a camera lens.\nSource Youtube DPReview TV\nRemove all dust and dirt from the camera lens with a blower.\nUse a soft cloth or lens brush to clean.\nSpray lens cleaning solution onto the lens.\nUse a specialized lens cleaning cloth to remove stains.\nStore in a cool place, avoid high temperature and humidity.\nRemove dust and dirt from the lens\nLenses are always very easy to pick up dust. Especially the lens part. If they are not removed, you cannot clean it.\nMany people have the habit of using their breath to blow away dust. This action is not supposed to happen. Dust that penetrates the water is difficult to clean. So, when blowing with your mouth, it will cause saliva to come out.\nYou should not use air compressors because they contain oil that drips easily. The best way is to use a blower to blow away dirt.\nBlower has a very comfortable size. You can put it in your backpack and take it anywhere. When you need to use it can be very convenient.\nClean the lens with the right tool\nBlower has not been able to completely clean the dirt on the camera lens. At this point you need to perform more cleaning steps.\nThe lens part is very easily scratched. Image quality will decrease if this occurs.\nYou should not arbitrarily use any tool to clean the lens. Prepare a very soft towel. You can also use a dedicated lens brush. Then gently wipe the parts contained in the lens.\nIn this step, use a dry, non-absorbent towel. Because the main purpose is still to remove the remaining dirt. Absorbent towels will make it dirtier.\nCompletely remove stains with chemicals, lens cleaning solutions\nWhen you use it, your hand may touch the lens. This will leave fingerprints. It also leaves some nasty yellow stains. This causes the image to lose quality.\nUsing normal tools cannot remove all fingerprints and yellowing. Now, using chemicals is a reasonable solution.\nWhen you buy the camera, lens cleaning solutions are also available. Please choose a high quality product so as not to affect the lens. This spray solution usually has a strong detergent so it is highly effective. Spray it directly onto the lens surface and around the lens.\nYou should spray at a moderate level, too much is not good. Continue using a soft cloth to wipe off the areas where you sprayed the solution. Do not leave out any position so as not to leave chemicals.\nNote that you should choose soft towels, avoid using paper towels. When paper towels are soaked in water, they will break and crumble. It will make the lens more dirty and scratched.\nUse a dedicated lens cleaning cloth to clean everything\nThis stage will be the last step for you to clean the camera lens. You need to pay attention to see if there are any stains on the lens. The above steps removed all stains. Now you just need to check and clean everything before use.\nBuy a dedicated lens cleaning cloth. It will help you make the lens look like new again. Especially being able to completely clean everything. Gently wipe all parts on the lens. Make sure the lens cleaning cloth is clean and unused. If you've already used it, just wash the towel.\nAfter use, you should wash it for the next use. Wash only with clean water, cut the use of laundry soap. You let it dry and keep it in a discreet bag for the next time.\nAfter completing the above steps, you need to keep the lens in a cool, dry place. Do not store in places with low or high humidity. Wait until the lens is completely dry. You put it in your camera bag. Until use, just take out and assemble the camera.\nWhat Tools Do You Need To Prepare To Clean The Lens?\nTo make cleaning faster, you should prepare the tools in advance. Most of them are available at camera stores. When you buy a camera, you can ask for them.\nA handheld blower for blowing dust\nBrushes specifically for camera lenses\nSoft, hairless towels\nSolution, cleaning chemicals for lenses\nWith these tools, you should keep them in your camera bag. Whenever there is dirt you can bring it to use. It will be a gadget that anyone should equip.\nAre There Any Dangers When Cleaning The Camera Lens?\nMany people when cleaning lenses often have some worries. Since it's quite expensive, is there any danger in cleaning it? There's bound to be some risk if you don't find out.\nFew people may realize that the lens has a sensor. If you touch it too much, it will lose its functionality. Now, the lens cannot function as it should.\nThe lens is also composed of special chemicals and coatings. We can't see it with the naked eye. But in the production process people equip a lot of things.\nThe lens part will have a protective layer. If you clean too much, what happens to them? Surely the layers of protection, the sensor will gradually disappear. Camera lenses will not produce quality photos without these features.\nCleaning the lens with unnecessary tools is also very dangerous. As it may scratch and damage the lens.\nEach product will have different lens protective coatings. They are often corrosive if the chemical is not suitable.\nWhen cleaning you have to look at the ingredients and choose the right chemicals. Otherwise it will be very dangerous, affecting the lens.\nDon’t let the lens get in the sand. If you use a cleaning cloth, the result will be severe scratches to the lens. The best thing to do now is to use a blower to blow them away.\nBefore using cleaning tools, you need to check them carefully. See if the soil or sand sticks to it. If so, washing it off will be very dangerous.\nHow To Limit Cleaning The Camera Lens?\nPeople often say prevention is better than cure. Thus, to limit cleaning, you should not let dust stick to it.\nDirt and dust that accumulates for a long time will cause the lens to not produce quality images. At that point, you have to clean up in complicated steps. Then it's better not to let dust get on the camera lens.\nThe first step in changing lenses needs more attention. You often remove the lens when inactive. And mount the lens when needed. That process has created conditions for dirt to stick to.\nWhen changing lenses, you need to do it correctly. That is tilting the camera slightly when assembling the lens.\nWhen there is dust attached but new, you do not need to carry out cleaning steps. Just use a blower to blow away the dust. Whenever there is dust, take it out and use it.\nThe outside of the lens will have a lens mount. The mount should not be dusty for a long time. Please clean it before it gets deep inside the lens.\nApplying some of these suggestions will greatly benefit your lens. Thus, people should not clean the camera lens often.\n1. Should you clean your lens regularly?\nThis issue was also mentioned in the previous section. People should not clean camera lenses often. Because it will lose some essential features.\n2. How to clean the hard-to-reach spots of the lens?\nThe hard points to reach are the nooks and crannies of the lens. The best way you can apply is to use q-tips.\n3. What is the best order to clean the lens?\nEveryone should wipe the lens in a circle. Wipe from the inside of the lens to the outer edge. Because the lens is the hardest part to clean. So you have to focus on cleaning it first.\n4. Is there a way to protect the camera lens when it is not working?\nDon't forget to use the lens cap. All cameras have lens caps. You need to make use of it to protect the lens from dust.\nThe above information helps you know how to clean a camera lens. The camera lens determines the quality of the product image. Lens cleaning is very important.\nDuring the cleaning process, there are many things you need to keep in mind. The goal is to avoid serious consequences. Be more careful in the steps taken.\nBest 4K Mirrorless Camera For Filming And Video Recording - [2022 Update]\nBest Underwater Cameras Under $100 [Top Picks]\nThe Best Nikon Digital Camera Under 200$ | TopReviews","domain":"optical_engineering"}
{"url":"https://carettarobotics.com/using-solar-cells-for-a-fast-underwater-communication/","date":"2023-09-22T18:45:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506421.14/warc/CC-MAIN-20230922170343-20230922200343-00316.warc.gz","language_score":0.9184224009513855,"token_count":612,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__19701605","lang":"en","text":"Xu and colleagues report on laboratory tests in which they employed an array of commercially available solar cells to develop an optimal lens-free system for high-speed optical detection underwater in the Optica Publishing Group journal Optics Letters. Photodiodes, which have traditionally been utilized as detectors in wireless optical communication, have a much smaller detecting area than solar cells.\n“We exhibited the highest bandwidth ever attained for a commercial silicon solar panel-based optical communication system with a large detection area, to the best of our knowledge,” Xu added. “With this type of system, data sharing and power generation might be combined into one device.”\nOptimizing solar cells for communication\nLight-based underwater wireless communication is faster, has less latency, and uses less power than radio or acoustic waves. Most long-distance high-speed optical systems, on the other hand, are not suitable for use underwater because they necessitate precise alignment between the transmitter and the receiver.\nSolar cells can be used as detectors in an underwater wireless communication system because they detect light from a wide area and convert it to an electrical signal. This reduces the need for transmitter-receiver alignment. Solar cells, on the other hand, are designed for energy harvesting rather than communication, making high bandwidth difficult to obtain.\nThe researchers tested the new design, which used a 3×3 solar array to create a detection area of 3.4 × 3.4 centimeters, in a 7-meter-long water tank that emulated an underwater channel. Mirrors were used to extend the path length of the optical signal, creating a transmission distance of 35 meters. The system showed reliable stability, low power consumption, and high performance. As the size of the solar array increases from 1×1 to 3×3, the −20-dB bandwidth increases from 4.4 MHz to 24.2 MHz.\nEven though a simple modulation scheme was used, the new system exhibited a much higher detection bandwidth — which leads to a higher data rate — than has been reported in other studies using commercial silicon solar cells with a large detection area as detectors. Applying a reverse bias voltage of 90 V boosted the bandwidth further, allowing them to achieve a −20-dB bandwidth of 63.4 MHz. This bandwidth enabled a 35-m/150-Mbps underwater wireless optical link using the simplest form of amplitude-shift keying modulation.\n“The proposed technique is fairly cost-effective because solar cells are mass-produced,” Xu explained. “This form of detector could be employed in visible light communication, a type of wireless communication that employs visible light from LEDs and other sources to transfer data over long distances,” according to the researchers.","domain":"optical_engineering"}
{"url":"https://atlib.info/en/report/1099-toyota-camry-light-bulbs-replacement","date":"2024-04-18T16:51:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817222.1/warc/CC-MAIN-20240418160034-20240418190034-00434.warc.gz","language_score":0.8696640729904175,"token_count":568,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__42476834","lang":"en","text":"The current photo report is intended to show Toyota Camry V40 light bulbs replacement way including the way to replace 6th generation Camry high beam light bulbs on your own. Then high beam light bulbs, dipped beam light bulbs, parking and turn signal light bulbs replacement will be shown.\nToyota Camry V40 light bulbs numbers:\n- high beam light bulb — H11;\n- dipped beam light bulb — HB3 (9005);\n- turn signal light bulb — 7440A (7444NA or 992);\n- parking light bulb — 2825 (W5W).\nToyota Camry light bulb replacement\nNone tools are required to replace high beam and dipped beam light bulbs. But a small flat screwdriver will be required in order to gain access to the front parking and turn signal light bulb.\nIt will be much easier to replace parking and turn signal light bulb from the wheel arch. Turn the steering wheel (and the wheel, respectively) for this: to the left, if the replacement is made from the passenger side, and to the right, if the light bulbs are being replaced from the driver’s side.\nThen remove at least two protection fastenings in the wheel arch and unscrew the protection while gaining an access to the light bulbs.\nCamry V40 high beam light bulbs replacement\nHigh beam light bulb is located in the headlight assembly center. Turn the light bulb base for a quarter counterclockwise, then remove the light bulb from the headlamp. Now press the lock and disconnect the power connector.\nNew light bulb should be connected to the connector, inserted into the headlamp and then turned for a quarter clockwise.\nCamry V40 dipped beam light bulb replacement\nThe main dipped beam light bulb is located in the inner headlight assembly corner. It is replaced the same way as high beam light bulb. Turn the light bulb base for a quarter counterclockwise, remove the light bulb and disconnect the connector. Install in reverse order.\nCamry V40 parking light bulb replacement\nThe light bulb size is slightly above the light gray light turn signal cartridge bulb turn and has a black base. Turn the light bulb for 1/4 turn counterclockwise, remove the light bulb and take it out from the connector. Then insert a new light bulb into the socket, install it in the headlamp and turn it for 1/4 clockwise while locking.\nCamry V40 turn signal light bulb replacement\nThe turn signal light bulb has a light gray cartridge and is located under a slightly smaller parking light bulb. Turn the cartridge counterclockwise, remove the old light bulb and replace it, install the cartridge with a new light bulb in the headlight and turn it for 1/4 clockwise.","domain":"optical_engineering"}
{"url":"https://www.industrial-led-luminaires.com/aboutus.html","date":"2023-06-08T12:06:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224654871.97/warc/CC-MAIN-20230608103815-20230608133815-00204.warc.gz","language_score":0.781592071056366,"token_count":860,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__249542794","lang":"en","text":"|5/F,5 Building , Xufa Industrial Zone, Fengjin Rd,ShangCun ,Guangming New Town,shenzhen 518110 P.R. firstname.lastname@example.org|\n1 2 3 4 5 6 7\nKD LIGHTING (SOGOOD GROUP) PLANT KD LIGHTING Receiption Hall KD LIGHTING Marketing Conference KD LIGHTING Customer Visit KD LIGHTING HK Lighting Fair KD LIGHTING Team Activity KD LIGHTING 2017 Annual Celebration\nFounded in 2004,KD LIGHTING is one of the leading professional technology and marketing oriented high technology enterprise in R&D,manufacturing,sale and service of intelligent industrial LED luminaires.\nOur main products includes LED light tube(Magnetic/Conductive Ballast,Electronics Ballast Compatible),LED panel light,LED Linear light,Tri-proof LED Light,LED Flood Light,LED Area Light,LED Troffer,LED High Bay Light,LED street light etc.\nWe have strong R&D team which work closely to Marketing and Sales Department,and strict quality control system and facilities to ensure the quality, and we have built strategic partnership with the international top brands,such as CREE,PHILIP LUMILEDS,SAMSUNG,NICHIA,MEANWELL,PHILIPS ect,,we have 8 production lines to ensure the general production capacity for the general models,and we also have set up our own engineering laboratory for safety test,such as the Photometric testing, EMI testing, EMC testing, Surge Testing, ESD testing, IES file etc.\nAll of our LED luminaires comply with CE,RoHS standards,and for our leading LED luminaires,it is also TUV,ENEC,VDE,SAA,C-Tick,UL/CUL,ETL, DLC,LM79,LM80,Energy Star,TM21,L70 listed,especially to be suit for the North American market, the LED luminaires have been completely proven to be independent innovations and intellectual property.\nOur main market is Western Europe,North American,Oceanic Nations ect,we are proud to serve the leading distributor,wholesaler,retailer and contractor with innovative products,high-touch service,professional team and excellent customer experience.Our customer includes Jalasoft,Ibermutuamr,Walmarkt,BAIC Group,Mercedez-Benz,Royal International Hotel,Shenzhen Airport ect.In addition,we can provide our customers value added service with Dialux software for lighting design projects free of charge.\nKD LIGHTING adheres to independent innovation, and we KD LIGHTING people will try to build a world well-known industrial LED Luminaires brand.\nJoin us and let us work together!\nMeanwell Power Supply Linear LED High Bay With Long Lifespan 5 Years Warranty\n3 Foot 180W Suspended Commercial Lighting For Warehouse ETL DLC Listed\nIndustrial 300W LED High Bay Light Lamp 4 Feet 2700-6500K CCT For Mines / Shipyards\nSuspended Industrial Warehouse Light Fixtures IP54 170Lm/W Super High Efficiency\nConnectable 4 Feet 50W Linear LED Light Fixtures Low Light Decay CE RoHS Listed\n70W Linkable LED Linear Lighting 130Lm/W Supermarket LED Linear Light Fixture\nSupermarket Suspended Linear LED Fixture 50W 130Lm/W No Toxic Metals Case\nLinkable LED Linear Lamps Trunk System 130LPW 3000K-6500K CCT Dimming Available\nLight Weight Ballast Compatible LED T8 Tubes 2700-6500K CCT With Long Lifespan\n3 Ft T8 Tube With Electronic Ballast 160Lm/W Efficiency Compatible Plug And Play\nEVG KVG VVG T8 Electronic Ballast LED Tube AC Direct Input With 5 Years Warranty\n30 Watt Electronic Ballast LED Tube Flicker Free Driver Electronic Ballast Tube Light","domain":"optical_engineering"}
{"url":"http://www.gearzone.com/Brunton-Echo-Mid-Size-Binoculars-p/37646-2.htm","date":"2013-05-18T22:02:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696382917/warc/CC-MAIN-20130516092622-00095-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8289793729782104,"token_count":175,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__97132169","lang":"en","text":"The Brunton Echo Mid Size Binoculars are great balance of performance, size and weight.\nAvailable in two powers…8X and 10X …the Echo Mid Size binoculars are tough with a waterproof polymer frame and ergonomic body armor, making them a perfect fit for everyday use. Twist-up eye relief offers eyeglass compatibility.\nThe Echo Mid Size brings you a sharp image with the help of BaK-4 prism glass, and state-of-the-art multi-coating.\nFeatures: Bak-4 prism glass, state-of-the-art multi-coating, emerald fire full multi-coating, multi-step eye relief system, waterproof/fogproof, nitrogen filled, ergonomic body armor, and tripod/monopod compatible.\nIncludes lens covers, neck strap and carrying case.","domain":"optical_engineering"}
{"url":"https://hydroponicsinc.com/collections/vendors?q=Philips","date":"2022-08-08T14:32:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570827.41/warc/CC-MAIN-20220808122331-20220808152331-00079.warc.gz","language_score":0.8721157312393188,"token_count":211,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__47315841","lang":"en","text":"MasterColor CDM lamp gives a unique combination of unbeatable light quality and consistent performance over lifetime while keeping running costs low. The Philips MasterColor Tubular Single-Ended T6 lamp is a compact, energy efficient, ceramic metal halide lamp that provides crisp, sparkling light.\nAs the most experienced brand in HPS DE since 2005, Philips understands professional horticulture needs. The new Philips 1000 Watt HPS AGRO Plus DE EL lamp is their best, highest output lamp ever produced. This 400 V high frequency lamp is made in Belgium. It is nitrogen filled with a quartz glass outer jacket for perfect optical quality. This lamp produces 2,120 µmol/s at 1,000 watts and an amazing 2,400 µmol/s when boosted to 1,150 watts.","domain":"optical_engineering"}
{"url":"https://nhomkinhtaolap.com/2021/10/what-to-know-about-magnifying-glass-and-how-to-use-it/","date":"2022-07-07T02:24:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104683020.92/warc/CC-MAIN-20220707002618-20220707032618-00292.warc.gz","language_score":0.943917453289032,"token_count":1076,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__137509031","lang":"en","text":"When you’re thinking about buying a new glass piece, you should probably get a better idea of what to expect before you buy.\nBut how exactly does magnifying an object make it look?\nIs it just the light of your room?\nDoes it affect the quality of your drink?\nAnd if it doesn’t, can you just buy a new one?\nGlass magnifying glasses are a big part of the new glass collection in stores, and they’re no different than those used in home decor, but in this article, we’re going to focus on glass that’s designed to magnify light and provide a nice display of colors.\nIf you’re looking to get a more realistic view of the world around you, the best way to do that is with a magnifying lens.\nThis lens can be used for things like enhancing your home decor or a bright light display.\nBut if you’re just looking to magnificently enhance your glass, you’ll need to find a new magnifying set.\nWhat are magnifying lenses?\nMagnifying lenses are usually made from glass, usually plastic, and are used to magnifies light and create a realistic, realistic-looking image.\nGlass magnifiers are usually designed to be used on the back of a magnified glass piece and provide additional light and contrast.\nThe best ones are the ones designed to work best with other glass.\nThey are also often designed to focus light on a particular part of your glass to create a sharp, crisp image.\nThere are different types of magnifying eyeglasses available.\nThe most popular ones are a set of three lenses, called a magnifier.\nThe first one is usually made of a thin glass that can be mounted on the front of the lens.\nIt’s called a “lens.”\nThe lens contains a piece of glass called the focus ring, which is usually covered in a thin layer of plastic that can block light and increase contrast.\nMagnifying glasses often have a small mirror in the front, and the front lens contains an infrared camera that can focus the light onto your glass.\nSome magnifying sunglasses, like the new Glass Magnifying Glass from Magnifying Eye, are made to focus infrared light, which makes them ideal for using in outdoor situations or on your phone or tablet.\nThe second type of magnifier is designed to give light to a lens.\nA “lensespan” is an oval shaped piece of plastic with an eyepiece inside.\nThe lens can then be mounted over the front and you can see light passing through.\nThe magnifying optics used to focus the infrared light are made from materials that are harder to block, like a glass that is porous, or glass that has an adhesive film that can attach to the glass and hold it in place.\nThese lenses can also be used to give bright colors, such as in your home décor.\nThe third type of lens is a “plasma” lens, which uses a laser to focus an infrared beam onto the glass.\nIt usually has a reflector inside the lens that helps it focus the beam and creates a bright image.\nSome other lenses designed to increase contrast and enhance color include the Magnifying Lens, Magnifying Lenses for TV and Movie, and Magnifying Eyeglasses.\nBut when it comes to choosing the best magnifying Glass, you may want to look into a brand of glass specifically designed to do what you want it to do.\nThere’s one thing that is important to remember when you’re buying a magnificating lens: if it’s designed for a specific purpose, then it probably doesn’t work very well for other things.\nThat means that you may have to use the lens you’re interested in to magnimize the light you want.\nIt also means that the light that comes from the lens will be dimmer and less intense than the light coming from the other parts of your device.\nIf your lens is designed specifically for something that can’t magnify, you might have to look for another brand of magnifiers.\nFor example, the Magnification Eye is a magnifiers that works well for things that require a very strong focus.\nIt has an adjustable focal length, so you can zoom in and out.\nBut the lens doesn’t focus the entire image, so it’s not ideal for capturing detailed scenes.\nIn that case, the OptiMagnus, a larger lens that focuses the light from more distant objects, is the better choice.\nMagnifiers designed for use on TVs and other displays, like magnifying screens, usually aren’t designed for using on glasses, either.\nThey’re designed to maximize the contrast of a TV screen.\nMagnification lenses for other uses also can have issues.\nFor one thing, the lenses used to make them can be very thin and hard to focus.\nAnd the lenses can be difficult to clean, so they can cause eyestrain.\nMagnifications for other types of objects, such a mirror, can also need to be cleaned. Glass","domain":"optical_engineering"}
{"url":"https://www.alamiya.sa/news/canon-and-alamiya-sign-high-tech-agreement-at-nab-show/","date":"2019-04-21T17:11:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578531994.14/warc/CC-MAIN-20190421160020-20190421182020-00396.warc.gz","language_score":0.9354097843170166,"token_count":356,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__9932106","lang":"en","text":"– Canon and Alamiya Sign High-Tech Agreement at NAB Show\nLAS VEGAS—As part of its technological advancement plans, Alamiya announced Wednesday, Apr. 10, its massive high-tech. deal with Canon, one of the global market leaders in camera manufacturing, at the annual National Association of Broadcasters.\nWith this deal Alamiya will bring-in the first stock of the advanced 4K UHD Portable Zoom Lenses to Middle East and North Africa.\nAlamiya upgraded its lenses resolution to the 4K UHD resolution to give their broadcasters and business clients even more depth and smoother edges in their media coverages.\nThe 4K resolution isn’t the only focus for such an in bulk purchase; there is a shift toward color vividness in the market and with the wide color gamut (WCG), the images and videos taken will encompass a wider range of color values.\nThe deal also included obtaining High Dynamic Range lenses that are essential in live videography to truly highlight the contrast between the darkest and brightest spots in a scene and give an element of reality to viewers.\n“We are proud and honored to be selected as the preferred supplier for Alamiya and we are looking forward to the mutual cooperation to make our cooperation successful. Both canon and Alamiya are 100 percent committed,” said Wilfred Soerel, Sales Manager at Canon.\nAlong with the wide-angle range extender and rapid servo lens drive speed, the footages taken by Alamiya will steer clear from vibrations and process at a higher speed to assure optimal live coverages during sports events specifically.\nAlamiya sought Canon and GLOCOM for their expertise in lenses optical performance and still maintaining portable, compact and lightweight designs.","domain":"optical_engineering"}
{"url":"http://www.flyinsfp.com/oeoconverter25g.html","date":"2017-05-28T04:52:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463609598.5/warc/CC-MAIN-20170528043426-20170528063426-00075.warc.gz","language_score":0.8317998051643372,"token_count":211,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__236281425","lang":"en","text":"This fiber optical converter 125M to 2.5G manageable OEO is high-performance, supports working mode: 2R(re-large, Re-shape), realizing the optical signal equilibrium amplification and optical regeneration. Conversion between multi-mode and single-mode, conversion between dual fiber and single fiber, and conversion between different wavelengths.\nl Supporting SFP to SFP\nl Transmission rate 125Mbps to 2.5Gbps\nl Short delay time when transparent transmission\nl Supporting Jumbo frame transmission\nl Supporting DMI(Diagnostic Monitoring Interface) function of optical transceivers\nl Supporting 850nm, 1310nm, 1550nm and DWDM/CWDM wavelength ruled by ITUT\nl With powerful network management function, supporting WEB and SNMP\nl Supporting hot plug\nl Easy installation with complete LED indicators for working situation\nl Supporting 2U chassis (16 slots) and standalone chassis.\nl Fiber channel\nl Fast Ethernet\nl Gigabit Ethernet\nl Long distance optical transmission network","domain":"optical_engineering"}
{"url":"https://vtkxt.cn/https-avplemedia-com/","date":"2022-05-27T19:11:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662675072.99/warc/CC-MAIN-20220527174336-20220527204336-00154.warc.gz","language_score":0.9350583553314209,"token_count":262,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__184043962","lang":"en","text":"Your digital camera contains a light-sensitive panel that records the light that hits it when you press the button to take a photo. This performs the same function that film does in older cameras. The sensor remains hidden behind the closed shutter (see below) and is only exposed when a photo is taken. Your camera records the light hitting the sensor when you take a picture, and stores the result on the memory card in the camera.\nA cameras shutter sits just in front of the image sensor. It is normally closed so that no light is getting through to the sensor, but when you press the button, it opens for a certain length of time to expose the sensor to light. The shutter in most cameras will be comprised of two curtains. For longer exposures, the whole sensor might be exposed for a period of time before the second curtain closes it. In the case of fast shutter speed however, the first curtain opens only a tiny gap between it and the second curtain, and travels across the sensor with the second curtain following close behind. The speed of the shutter is expressed in whole seconds as well as fractions of a second. A shutter speed of 1/640 means the shutter will open and the sensor exposed for only one-six-hundred-and-fortieth of a second.","domain":"optical_engineering"}
{"url":"https://www.pgmprecision.com/en/the-new-sb-6-36x56-pm-ii-high-performance-available-at-pgm/","date":"2024-04-17T21:31:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817181.55/warc/CC-MAIN-20240417204934-20240417234934-00214.warc.gz","language_score":0.9021490812301636,"token_count":353,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__73663288","lang":"en","text":"The new S&B 6-36×56 PM II High Performance available at PGM!\nThe new Schmidt & Bender 6-36×56 PM II High Performance rifle scope is now available at PGM! This new high-tech scope offers exceptional performance for medium and very long range shooting.\nNew generation scope:\nExcellent image quality with high resolution and a large field of view, which exceeds that of most 5-25 times scopes on the market, ensures fast and detailed target recognition.\nRobust and ergonomic:\nParticularly light and compact thanks to its unique design, this new scope offers exceptional ergonomics. MIL-STD-810G compliant, this 6x zoom scope can be used in the most difficult conditions and will be suitable for both operational and civilian use.\nThe new Schmidt & Bender 6-36×56 PM II High Performance features the brand’s new reticle, the P5FL. An evolution of the famous P4FL, this new generation reticle reflects the brand’s technical advances by offering a clear reticle, reduced to the essential and without distracting structures. Those who already use the P4FL reticle will be able to adopt this new reticle in an intuitive way.\nThis new Schmidt & Bender 6-36×56 PM II High Performance scope can also be equipped with the GR²ID reticle.\nA cooperation since 2004 :\nWe have been working with Schmidt & Bender since 2004 in order to offer you rifle scopes that reflect the quality of our products. These many years of cooperation allow us to position ourselves as a retailer of choice for the products of this famous brand which offers the most qualitative and innovative products of the market.","domain":"optical_engineering"}
{"url":"https://www.close5.com/s/l/accessories/seattle-washington?from_ec=1","date":"2016-12-07T08:37:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-50/segments/1480698542009.32/warc/CC-MAIN-20161202170902-00339-ip-10-31-129-80.ec2.internal.warc.gz","language_score":0.9190380573272705,"token_count":211,"dump":"CC-MAIN-2016-50","global_id":"webtext-fineweb__CC-MAIN-2016-50__0__207592370","lang":"en","text":"$150The Minolta Maxxum QTsi is the easiest-to-use SLR camera in Minolta's Maxxum product line. It handles and operates similarly to a fully automatic point-and-shoot camera, but provides the picture quality and system flexibility that only an SLR camera can offer. It is a camera you can grow with by adding lenses, flash units, and accessories.\nThe Minolta QTsi features two detachable lenses, selectable automatic or manual focus, a built-in pop-up flash with four modes, a self-timer, and TTL-type metering. It also offers programmed auto exposure with an additional five modes for portraits, landscapes, close-ups, action shots, and night portraits. Film transport is automatic as well. A large on-body LCD panel displays exposure mode, battery condition, mode selection, and whether manual focus or autofocus is selected.\nThese are in great condition with normal wear, no scratches on lenses or fungus/mold.","domain":"optical_engineering"}
{"url":"http://shoppingbfdmarycoldsusa.zz.mu/axis-p3343-ve-outdoor-vandal-resistant-fixed-dome/","date":"2018-06-23T15:50:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267865098.25/warc/CC-MAIN-20180623152108-20180623172108-00600.warc.gz","language_score":0.8462165594100952,"token_count":121,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__248652856","lang":"en","text":"Axis P3343-VE Outdoor Vandal Resistant Fixed Dome\nAmazon.com Price: Check Price at Amazon.com\nAxis P3343-VE Outdoor Vandal Resistant Fixed Dome Description\nThe AXIS P3343-VE Fixed Dome Network Camera offers superior image quality including day/night functionality and wide dynamic range, providing crisp and clear images of both illuminated and low-light areas. Remote zoom ensures that the viewing angle is optimized for the scene and required pixel resolution at installation. The remote focus function makes the installation convenient, eliminating the need for focusing at the camera position.","domain":"optical_engineering"}
{"url":"https://www.vatupdate.com/2021/04/14/21-vat-for-the-delivery-of-a-separate-docking-station-for-an-electronic-handheld-magnifier/","date":"2021-05-06T01:34:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988724.75/warc/CC-MAIN-20210505234449-20210506024449-00605.warc.gz","language_score":0.9035236835479736,"token_count":192,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__187713684","lang":"en","text":"A separate docking station is not an optical reader or special visual aid for the visually impaired, usually prescribed by a doctor or an optometrist and individually fitted. The delivery is therefore taxed with 21% VAT.\nAn electronic handheld magnifier is an optical reading device for blind and partially sighted people that can read small pieces of text. The supply of an electronic handheld magnifier is taxed at the low VAT rate.\nA separately available docking station can be used with an electronic handheld magnifier. The docking station allows the electronic handheld magnifier to scan and read entire pages. The docking station can also charge the electronic handheld magnifier.\nA separate docking station cannot be used independently and is therefore not an optical reading device. The docking station is also not a special visual aid for the visually impaired, which is prescribed by a doctor or an optometrist and is individually fitted. The delivery of a separate docking station is therefore taxed with 21% VAT.","domain":"optical_engineering"}
{"url":"http://optron.com/spectra/category/89","date":"2017-11-19T13:50:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934805649.7/warc/CC-MAIN-20171119134146-20171119154146-00766.warc.gz","language_score":0.8203698396682739,"token_count":118,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__246632788","lang":"en","text":"More contractors around the world use Spectra Precision lasers to increase construction job site productivity and profitability than any other brand. Each laser comes with the solid dependability that has made the Spectra Precision Laser name the standard in the industry.\nHV 101 Laser\nThe automatic, self-leveling Spectra Precision HV101 Laser is a professional tool with an economical ... [HV 101 Laser details]\nHV 302 Laser\nWhether your job is indoors or outdoors, the automatic, self-leveling Spectra Precision® HV302 H ... [HV 302 Laser details]","domain":"optical_engineering"}
{"url":"https://www.eschenbach.com/products/biconvex-hand-held-magnifiers.asp","date":"2018-09-21T05:46:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267156857.16/warc/CC-MAIN-20180921053049-20180921073449-00520.warc.gz","language_score":0.9340128898620605,"token_count":408,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__43102222","lang":"en","text":"Browse our entire line of quality Eschenbach products\nBi-convex lenses are manufactured with an identical convex surface on both sides of the lens - in other words, there is one concave lens on both faces. Bi-convex lenses have positive focal lengths and form both real and virtual images.\nIf the lens is biconvex or plano-convex, a collimated beam of light travelling parallel to the lens axis and passing through the lens will be converged to a spot on the axis, at a certain distance behind the lens, known as the focal length.\nWhat happens to the \"real\" image of an object as it is moved closer to a simple thin bi-convex lens? At points greater than two times the focal length of the lens, the image of an object is real, inverted, and smaller than the object. At two times the focal length, the image is the same size as the object and is real and inverted. At less than two times the focal length, the image is real, inverted, and magnified. When the object approaches closer than the focal length of the bi-convex lens, it appears to be on the same side of the lens as the object. In this instance, the image is magnified and is now a virtual image.\nEschenbach manufactures a 'Large Field' series of Biconvex hand-held magnifiers, which offers the largest fields available in their power range. Lens sizes range from 65 mm to 120 mm, and 80 x 40 mm to 120 x 55 mm. Diopter values range from 3.3 to 7.4 diopters.\nThe Biconvex PXM® lightweight lenses have anti-static coating and the mount is composed of transparent PXM®. The handle is a shell-type patented design. It is black plastic with a slot for a carrying cord. Black leather cases for each large field biconvex magnifier are also available.","domain":"optical_engineering"}
{"url":"https://vsdaily.com/epson-elevates-the-home-cinema-experience-with-its-latest-4k-resolution-home-theatre-laser-projector/","date":"2024-04-19T19:44:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817442.65/warc/CC-MAIN-20240419172411-20240419202411-00161.warc.gz","language_score":0.9115451574325562,"token_count":708,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__8262913","lang":"en","text":"Aimed at inspiring innovative visual experiences, Epson continues to strengthen its home projector range with the launch of EH-LS12000B – its latest 4K resolution home theatre laser projector. Specially designed to deliver an immersive big-screen entertainment for movie nights and competitive gaming, the EH-LS12000B promises to impress with the delivery of ultra-rich detailing and vibrant colours to recreate the ultimate larger-than-life cinematic experience from home.\nWith state-of-the-art technology combined with Epson’s strong track record of visual excellence, the EH-LS12000B delivers phenomenal image quality and colour brightness that will not fail to impress. Representing Epson’s premium range for home projectors, the EH-LS12000B achieves up to 8.3M pixels, allowing users to enjoy movies in high definition in a dedicated home theatre set up in the comfort of their own homes. The technological breakthrough of a new 4K image processing chip to deliver 4K resolution will offer home cinema enthusiasts vibrant high quality and crystal-clear images without distortion. Additionally, not only does this model has HDR10+ High Dynamic Range for extra details and depth as well as natural and richer colours, its HDMI 2.1 port connectivity and low input lag time of under 20ms means even hardcore gamers will be enthused by 4K resolution that supports up to 120fps; allowing precise display reaction times to support a wide range of gaming and entertainment applications and devices, including the PlayStation 5 and Xbox Series X – making this a perfect choice for gaming enthusiasts.\nFeaturing a brightness of 2,700 lumens colour/white brightness, the 3LCD technology utilised by the EH-LS12000B produces rich, balanced, and true-to-life colours, while the HDR10+ High Dynamic Range accentuates dynamic detail without rainbow effect for an exceptional and comfortable home viewing experience. Supporting Calman calibration solutions, the EH-LS12000B is able to deliver high standards of colour accuracy for the ultimate picture quality. In-built functions also include the Scene Adaptive Gamma mode, which increases contrast levels to enhance the luminance of the brightest white and the deepest black without overexposure.\nPowered by a laser light source instead of a conventional lamp, this model is designed to be incredibly long-lasting and is maintenance-free for up to 20,000 hours, while producing less exhaust heat and low power consumption for energy efficiency. Precise, flexible, and easy installation is also made possible with powered 2.1x optical zoom, powered focus, and motorised lens shift. With the patented front exhaust design and a wider lens shift, users can confidently install the EH-LS12000B on shelves or even in spaces that are not perfectly aligned against the wall or projection screen.\nWith the launch of our latest top of the range 4K home theatre laser projector, the EH-LS12000B truly elevates the typical home movie viewing to an enthralling and wholly immersive cinematic experience with its high image quality and flexibility, while also being an ideal choice for gamers with its low lag times.” said <insert spokesperson name and designation>.\nThe EH-LS12000B will be available in Malaysia starting 29 April 2022. Visit the https://www.epson.com.my/homeprojector or contact your nearest Epson Authorised Dealer store for more information.\n25 April 2022","domain":"optical_engineering"}
{"url":"http://www.nanofab.ubc.ca/equipment/analysis/","date":"2018-07-18T20:02:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590329.25/warc/CC-MAIN-20180718193656-20180718213656-00572.warc.gz","language_score":0.8806012868881226,"token_count":168,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__81068207","lang":"en","text":"This instrument is used to measure the thickness of transparent and semi-transparent thin films via reflection or transmission spectroscopy. Films as thin as a few tens of nm can be measured when the UV light is turned on. An SOP will be coming soon.\nThis microscope can image in bright/dark fields. It can be used for simple imaging and also does Nomarski microscopy. Image capture is via a CCD camera.\nThis semiautomatic profilometer can be used for single and multiple scans. It provides data on a film thickness, or on a surface roughness and also allows 3D visualization of the scanned structures. It can moreover be used to measure stress of thin films.\nThis profilometer provides data on a film thickness or on the surface roughness/profile of the scanned structures.","domain":"optical_engineering"}
{"url":"https://northgeorgiaeyecare.biz/services/","date":"2023-09-27T21:37:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510326.82/warc/CC-MAIN-20230927203115-20230927233115-00048.warc.gz","language_score":0.9169903993606567,"token_count":192,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__284613205","lang":"en","text":"Here at North Georgia Eye Care we provide extensive services to insure the health of your eyes. Eye care is more than just checking your vision. When we perform your eye exam, we also check for and monitor the following conditions: (click on a condition for a description)\nNorth Georgia Eye Care continues to be at the leading edge of vision technology and advanced procedures. Our new Topcon Maestro helps to identify early signs of eye diseases like glaucoma and age related macular degeneration before the patient notices any changes in their vision.\nThis impressive technology scans both eyes in only 40 seconds to provide an OCT scan and a true color high resolution retinal image. The Maestro is just one of our many new pieces of technology added to our office in 2019 designed to gather accurate and meaningful data quickly. Call today to schedule your yearly eye health examination and add a detailed Maestro scan to aid screening for any diseases that may result in vision loss.","domain":"optical_engineering"}
{"url":"https://physics.meta.stackexchange.com/questions/13079/is-this-an-homework-or-check-my-work-type-question","date":"2023-12-02T21:54:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100452.79/warc/CC-MAIN-20231202203800-20231202233800-00872.warc.gz","language_score":0.932384729385376,"token_count":177,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__250564564","lang":"en","text":"I think this line\nHow can we explain this phenomenon using ray diagrams?\nis the issue. At first glance it makes it look like you are just asking for someone to make a ray diagram for you rather than asking about physics concepts here.\nAn easy fix could be something like\nFrom ray diagrams it can easily be concluded that using a real object, we cannot get a real image from a plane mirror. But, if we shine a torch on the mirror we see a real image on the wall. Why does a real image form despite ray diagrams showing they do not form?\nThis puts the focus on understanding what constitutes a real image, and how they relate to ray diagrams.\nIt might also help to explain why you think it is a real image (and not just light reflecting off a surface), and maybe even your ray diagrams showing how real images do not form.","domain":"optical_engineering"}
{"url":"http://courses.engr.wisc.edu/cee/cee304.html","date":"2016-05-26T00:33:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-22/segments/1464049275429.29/warc/CC-MAIN-20160524002115-00158-ip-10-185-217-139.ec2.internal.warc.gz","language_score":0.7123729586601257,"token_count":122,"dump":"CC-MAIN-2016-22","global_id":"webtext-fineweb__CC-MAIN-2016-22__0__94557544","lang":"en","text":"CIV ENGR 304: Remote Sensing Visual Image Interpretation and GIS Integration\n- Catalog Description:\nIntroduction to the principles, equipment, and techniques utilized to interpret remote sensing imagery visually. Emphasis on airphoto interpretation in a range of application areas; visual analysis of non-photographic remote sensing data; introduction to computer-assisted image interpretation and GIS.\n- Credits: 1\n- Prerequisites: Civ Engr 301\n- Engineering Moodle Courses on the Web (formerly eCOW)\n- Create an Engineering Moodle Course Homepage (formerly eCOW2)","domain":"optical_engineering"}
{"url":"https://www.c-asystems.com.mx/en/dock-lighting/versa-light.php","date":"2024-04-19T19:00:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817442.65/warc/CC-MAIN-20240419172411-20240419202411-00754.warc.gz","language_score":0.8105639815330505,"token_count":222,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__138095022","lang":"en","text":"The Greenest Technology in Truck Lighting\nGet all the facts on LED dock lights.\nNot all LED lights are created equally. The LED Versa Light® provides Sustainability by Ensuring Quality and Performance for the Long Term – minimizing your cost of ownership.\nNothing lights up a trailer like a LED Versa Light® with our 10 LED head configuration. The LED Versa Light® effectively illuminates the ENTIRE INSIDE of an 8’ X 53’ trailer.\nOther dock lights feature a 53’ beam of light with a spotlight quality; we focus on details like lighting up the sides too.\nLonger Life – Our patented, fan-cooled design allows us to provide a light with superior output, 10 high intensity LED’s, and longer life LED’s – up to 85,000 hours.\nEasy on the eyes – Specifically engineered to maintain the same color temperature as our halogen bulb Versa Light™\nSuitable for food grade applications.\n¡We will contact you!","domain":"optical_engineering"}
{"url":"https://post.koalaeye.com/can-you-put-new-lenses-in-old-frames","date":"2021-09-26T22:13:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057973.90/warc/CC-MAIN-20210926205414-20210926235414-00424.warc.gz","language_score":0.9232706427574158,"token_count":739,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__204034206","lang":"en","text":"Can you put new lenses in old frames?\nIn the previous article, we discussed “How long do plastic glasses frames last?”. In this article, let’s talk about “Can you put new lenses in old frames?”.\nEyes, glasses, and the frame are closely related.\nIn order to optimize the optical properties of the reprocessed glasses, the following alignment data will be recorded during lens matching. The distance between the center of the pupil and the center of the lens frame. The distance between the lower edge of the frame and the center of the pupil.The distance between the back surface of the lens and the most anterior point of the cornea.The angle between the surface of the lens and the vertical line of sight, and the horizontal line of the surface of the lens, and the angle of view between the two (curvature). Only in a few cases can an old custom lens be installed on the new frame. In the case of standard focusing lenses, the option of putting the old glasses in the new frame is most likely to work, as only the distance between the pupils is needed. In the case of a standard single-focus lens, the remaining alignment data is usually not needed.\nReplacement of glasses frame is needed.\nIf we don’t want to change the lenses, but just want to change the frames, there is a very important requirement — the frames must be the same size, or the frames must be smaller. Since the size of the lens is already fixed, it is not possible to replace it with a large glass frame. So if you really don’t want to change the lenses, then at least make sure that the frame is the same, or wearing the glasses will be affected.\nThe state of the lens should be paid attention to.\nReplacing the lenses or frames is not recommended. Try to replace the entire lens. The situation of the lens affects that whether it can continue to be used. If the new frame is really damaged, we can directly replace the frame and use the same frame, to ensure the effect at least. If the lens has serious scratches, or yellowing, oxidation, and other problems, then the lens will definitely be replaced at the same time. Lenses should not be badly scratched, since readjustment will put more strain on the surface of the lens, which will make the film of the old lens less durable.\nThe comfort level is not high.\nThe old lens is installed on the new frame, first of all, it is difficult to do. Even if they are reluctantly installed on the frame, a lot of optical systems of the lens will change, pupil distance, optical center, and so on. In addition, for people with astigmatism, it is even more impossible to change, because astigmatism has an axial position. If you polish your original lens, the axial position will change, and it will be more uncomfortable to wear. This is especially problematic if the older lens is a progressive lens. In this situation, the tolerance is even more limited because the progressive lenses have to correct nearsightedness, farsightedness, and presbyopia all at the same time, and achieving a clear vision of all distances between them. And the small error can make you uncomfortable to wear.\nThank you for your time in reading our passage “Can you put new lenses in old frames?”. For more information about sunglasses, please continue to follow post.koalaeye.com. Also, it is welcome to share and forward to Facebook and Twitter.","domain":"optical_engineering"}
{"url":"http://www.frigopak.si/en/machines/ventus-3/","date":"2023-09-28T05:25:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510358.68/warc/CC-MAIN-20230928031105-20230928061105-00773.warc.gz","language_score":0.8871952891349792,"token_count":210,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__226584777","lang":"en","text":"The VENTUS has been specially developed for sorting nuts and dried fruit, and is also ideal for frozen vegetables, berries and other small products.\nThis free-fall laser sorter is available in various scan widths, up to 1800 mm.\nThe VENTUS is a dual-sided, freefall laser sorter, especially developed for sorting nuts and dried fruit. It’s available in different scan widths up to 1800 mm, and its highly stable and reliable lasers are extremely accurate in sorting on the basis of color, shape, structure and biological characteristics. This results in optimal defect detection and an excellent good-to-bad ratio.\n· widest double-sided free-fall laser sorter\n· robust, advanced lasers\n· excellent good-to-bad ratio\n· sorting on the basis of color, shape, structure and biological characteristics\n· superior resolution\n· advanced sorting software using AI\n· optimal flexibility and integration options\n· perfect hygiene\n· fast product switching\n· 24/7 (remote) service","domain":"optical_engineering"}
{"url":"http://www.ptonline.com/products/video-extensometer-comes-with-integrated-software","date":"2017-04-25T10:39:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120338.97/warc/CC-MAIN-20170423031200-00620-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8923634886741638,"token_count":171,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__210387081","lang":"en","text":"For mechanical testing instruments, a new non-contacting extensometer with integrated software is said to match or exceed the performance of traditional contacting extensometers. The Advanced Video Extensometer (AVE) from Instron Corp., Norwood, Mass., uses a high-resolution digital camera and real-time image processing to make precise strain measurements on material test samples. Because it is non-contacting, it has no influence on the specimen and eliminates the possibility of damage due to energy release at failure. Having no moving parts, it suffers no mechanical wear that could lead to unreliable results. AVE is available with three fields of view and transverse-strain measurement.\n825 University Ave. Norwood, MA 02062-2643\nPhone (781) 828-2500 Fax (781) 575-5725","domain":"optical_engineering"}
{"url":"https://www.flylaser.net/what-to-do-if-the-font-is-deformed-during-lase-70799596.html","date":"2024-04-17T12:10:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817153.39/warc/CC-MAIN-20240417110701-20240417140701-00491.warc.gz","language_score":0.8692667484283447,"token_count":343,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__198659756","lang":"en","text":"Views: 14 Author: Site Editor Publish Time: 2023-09-29 Origin: Site\nIf you encounter the problem of font deformation during laser marking work, you can try the following methods to solve it:\nAdjust the driven wheel. If the driven wheel on the left side of the X-axis is worn, you can try to replace it with a new driven wheel to restore it to normal.\nTighten the screws. If the fastening screws between the X-axis motor and the pulley are loose, you can tighten the screws to solve the problem.\nReplace the motor. If the X-axis motor fails, consider replacing the motor to maintain normal marking work.\nAdjust tension. If the belt tension on the left and right sides of the Y-axis direction is inconsistent, you can adjust the hexagonal screw at the rear end of the Y-axis until the tension is consistent to ensure the consistency of the marking font.\nProduct Positioning. If the product positioning is unstable (not placed smoothly or too loosely), or the product and machine are touched during the marking process, the product position can be readjusted to ensure its stability.\nIf the problem of font deformation still exists after trying the above methods, it is recommended to contact professional technicians for further inspection and repair.\nHot tags: fly laser, laser marker, fiber laser marking, fiber laser marking machine, fiber laser marking machine price, fiber laser marking machine 20w, fiber laser marking machine 30w, 50w fiber laser engraving machine, fiber laser engraving machine for sale, fiber laser engraving machine price, fiber laser engraver machine for metal","domain":"optical_engineering"}
{"url":"https://inis.iaea.org/search/search.aspx?orig_q=author:%22Narro-Garc%C3%ADa,%20R.%22","date":"2021-05-16T02:19:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243991659.54/warc/CC-MAIN-20210516013713-20210516043713-00528.warc.gz","language_score":0.9342851638793945,"token_count":3265,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__47556235","lang":"en","text":"Results 1 - 10 of 10\nResults 1 - 10 of 10. Search took: 0.022 seconds\n|Sort by: date | relevance|\n[en] This paper reports the microwave hydrothermal synthesis and infrared to visible upconversion luminescence of Er3+/Yb3+ co-doped Bi2MoO6 nanopowder. Crystal structure, morphology and chemical composition were analyzed by means of X-ray Diffraction, Transmission Electron Microscopy and Raman Spectroscopy. Upconversion luminescence properties were studied in detail. The infrared to visible upconversion luminescence has been investigated in Er3+/Yb3+ doped Bi2MoO6 with different Yb3+ concentrations. Intense green and red upconversion emissions around 532, 545, and 655 nm corresponding to the 2H11/2, 4S3/2, and 4F9/2 transitions, respectively, to the 4I15/2 ground state were observed when excited by CW laser radiation at 980 nm. The effect of Yb3+ on the upconversion luminescence intensity was analyzed and the upconversion luminescence mechanism was explained in terms of the energy transfer process. From this study, it confirms that the like fluorides, and germinate glasses, metal oxide nanoparticles could also be a potential host to achieve desired upconversion luminescence. -- Highlights: • Er3+/Yb3+ co-doped bismuth molybdate nanopowder was successfully synthesized. • Infrared to visible upconversion luminescence was observed at 980 nm excitation. • Green and red emissions at 532 nm, 546 nm and 656 nm were investigated. • Bismuth molybdate could be a potential host material for upconversion luminescence\n[en] Mesoporous spherical Yb–Er-doped nanoparticles were prepared by sol–gel method. The structure and morphology of the nanoparticles were characterized using Raman, Fourier transform infrared spectroscopies, transmission electron microscopy and by low-temperature adsorption. It is shown that both anatase (tetragonal) and brookite (orthorhombical) phases are present in the titania nanoparticles. Their diameter size is between 12 and 15 nm and an average surface area of 136 . Under infrared irradiation, the nanoparticles show luminescence by an upconversion process of the ytterbium and erbium ions, the green emission corresponds to transition and for the red emission, the transition energy is: –. The green and red photoluminescence intensities are highly dependent on the OH amount, which is produced during the hydrolysis and condensation processes and depends on the reaction time, nanoparticles wash and annealing temperature. The influence of synthesis parameters on the properties of porosity and luminescence was studied by the Plackett–Burman experimental design.\n[en] In this work, poly(methyl methacrylate) (PMMA) thin films and a polymer optical fiber doped with pyrromethene (PM-567) were fabricated and characterized. The obtained films were uniform and homogeneous in its central zone and no aggregation of dye molecules were observed. UV–vis absorption, photoluminescence spectra, lifetime and photodegradation were measured for the fabricated films. Peak intensity and position of the photoluminescence spectra were dependent on the pyrromethene concentration. A resonant energy transfer mechanism is proposed as the main process associated with this behavior. Photodegradation results were well fitted by a gamma probability density function. While thin films were highly degraded under 405 nm excitation, the studied optical fiber displayed a much more stable behavior, presumably related with its construction design based on a transparent core and a thin PM-567 doped cladding.\n[en] In this paper, we report the microwave hydrothermal synthesis of Er3+/Yb3+ co-doped Bi2MoO6 upconversion photocatalyst. Crystal structure, morphology, elemental composition, optical properties and BET surface area were analyzed in detail. Infrared to visible upconversion luminescence at 532 nm and 546 nm of the co-doped samples was investigated under excitation at 980 nm. The results revealed that the co-doping of Er3+/Yb3+ into Bi2MoO6 exhibited enhanced photocatalytic activity for the decomposition of rhodamine B under simulated solar light irradiation. Enhanced photocatalytic activity can be attributed to the energy transfer between Er3+/Yb3+ and Bi2MoO6 via infrared to visible upconversion from Er3+/Yb3+ ion and higher surface area of the Bi2MoO6 nanosheets. Therefore, this synthetic approach may exhibit a better alternative to fabricate upconversion photocatalyst for integral solar light absorption. - Graphical abstract: Schematic illustration of the upconversion photocatalysis. Display Omitted - Highlights: • Er3+/Yb3+ co-doped Bi2MoO6 upconversion photocatalyst is successfully synthesized. • We obtained the nanosheets having high surface area. • Upconversion of IR to visible light was confirmed. • Upconversion phenomena can be utilized for effective photocatalysis\n[en] In this paper we report the infrared to visible upconversion luminescence properties of Er\"3\"+/Yb\"3\"+ co-doped BaMoO_4 nanocrystals synthesized via microwave assisted sol–gel processing route. Structural, morphological and upconversion luminescence properties were investigated by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), UV–vis diffuse reflectance spectroscopy (UV–vis DRS) and Upconversion Photoluminescence spectra analysis. Results revealed that the oval shaped BaMoO_4 nanocrystals ranging in size from 40 to 60 nm having tetragonal scheelite crystal structure were obtained by sol–gel route. The infrared to visible upconversion luminescence has been investigated in Er\"3\"+/Yb\"3\"+ co-doped in BaMoO_4with different Yb\"3\"+ concentrations. Intense green upconversion emissions around 528, 550 nm, and red emission at 657 nm corresponding to the \"2H_1_1_/_2, \"4S_3_/_2, and \"4F_9_/_2 transitions, respectively to the \"4I_1_5_/_2 ground state were observed when excited by CW laser radiation at 980 nm. The green emissions were greatly enhanced after the addition of sensitizer (Yb\"3\"+ ions). The effect of Yb\"3\"+ on the upconversion luminescence intensity was analyzed and explained in terms of the energy transfer process based. The reported work establishes the understanding of molybdates as an alternative host material for upconversion luminescence. - Graphical abstract: Infrared to visible upconversion luminescence of Er\"3\"+/Yb\"3\"+ co-doped BaMoO_4 nanocrystals. - Highlights: • Nanocrystals were synthesized by microwave assisted sol–gel processing route. • Strong green emissions were observed in Er\"3\"+/Yb\"3\"+ co-doped BaMoO_4 nanocrystals. • Provides an insight on Upconversion luminescence properties of oxides host materials\n[en] The tellurite fibers based on glasses with the composition TeO2–WO3–Nb2O5–Na2O–Al2O3–Er2O3–Yb2O3 were fabricated by the rod-in-tube technique using a Heathway drawing tower. The upconversion luminescence of Er3+/Yb3+ codoped tellurite glass fibers under 980 nm excitation were investigated. The Er3+/Yb3+co-doped tellurite fibers show an efficient up-conversion process in comparison with the Er3+-doped tellurite fibers. The pump power dependent intensities were discussed, which showed that two photons are involved in the upconversion process. - Highlights: ► We fabricate Er3+/Yb3+ codoped TeO2–WO3–Na2O–Nb2O5–Al2O3 glass fibers. ► We evaluate the upconversion luminescence of these tellurite fibers. ► The pump power dependent intensities were discussed. ► The Er3+/Yb3++co-doped tellurite fibers show an efficient upconversion process. ► We show that two photons are involved in the upconversion process.\n[en] Spectroscopic characterization of Er\"3\"+/Yb\"3\"+ co-doped tellurite glasses 70.8TeO_2–5Al_2O_3–13K_2O–(11−x)–BaO–0.2Er_2O_3–xYb_2O_3, where x=0, 0.4, 0.8, 1.2 and 2 mol% has been carried out through X-ray diffraction, Raman, absorption and luminescence spectra. The Judd–Ofelt intensity parameters were calculated for 0.2 mol% Er\"3\"+-doped glass and are used to evaluate radiative properties such as transition probabilities, branching ratios and radiative lifetime. The emission cross-section of the \"4I_1_3_/_2→\"4I_1_5_/_2 transition has been calculated from the absorption data using McCumber's theory. The emission intensity of both, visible and infrared signals as a function of Yb_2O_3, have been studied under 980 nm and 375 nm laser excitation. The physical mechanisms responsible for both, visible and infrared signals in the tellurite samples have been explained in terms of the energy transfer and excited state absorption process. The FWHM of the \"4I_1_3_/_2→\"4I_1_5_/_2 transition as a function of Yb_2O_3 mol% and distance (δ) between the laser focusing point and the end-face of the glass has been reported. It was observed both, experimentally and numerically, a change in the FWHM with variations of δ less than 8 mm. The latter was attributed to the radiation trapping effect. - Highlights: • Er\"3\"+/Yb\"3\"+ co-doped tellurite glasses were fabricated by the melt-quenching technique. • The structural, thermal and optical properties of the tellurite glasses were studied. • The radiation trapping effect has been observed in small tellurite glass samples. • Tellurite glasses could be a potential material for fiber fabrication\n[en] Both preform and polymer optical fiber with a Poly(methyl methacrylate) core and THV–Rhodamine 6G cladding were characterized. UV–vis absorbance, photoluminescence spectra and lifetime of the preform were measured. Axial and lateral photoluminescence spectra of the polymer optical fiber were studied under 404 nm excitation in order to study the illumination performance of the fiber. It was observed that the peak wavelength from the fiber photoluminescence spectra is higher than the peak wavelength from the fiber preform and that the peak wavelength from the fiber photoluminescence spectra is red shifted with the fiber length in the case of axial emission. The obtained results suggest the influence of self-absorption on the photoluminescence shape. Strong lateral emission along the fiber was observed with the naked eyes in all the cases. The lateral photoluminescence spectra show that the lateral emission is a combination between the pump laser and the Rh6G molecule photoluminescence. The results suggest that this polymer optical fiber could be a potential candidate for the development of fiber lighting systems. - Highlights: • Axial and lateral emission along the fiber was studied. • Self-absorption effect was confirmed in the case of axial photoluminescence. • The lateral emission is a combination between the laser and the RhG6 emission. • This fiber could be a potential candidate for the development of lighting systems.\n[en] In this work, the photodegradation of a polymer optical fiber with Rhodamine doped cladding as a function of illumination time and excitation intensity is presented. To show the effect of photodegradation on different bulk geometries and environments, the photodegradation from a dye doped preform and a PMMA thick film is also evaluated. The reversible and the irreversible degradation of the florescent material were quantified under an established excitation scheme. To this purpose, a four-level system to model the photodegradation rates and its relation with the population of the states is presented and it is used to justify a possible underlying mechanism. The obtained results suggest an increase of one order of magnitude in the stability (lifetime) of the polymer optical fiber with respect to the preform or the thick film geometry stability.\n[en] Fluorophosphate glasses of composition (P_2O_5–K_2O–Al_2O_3–CaO–CaF_2)-doped with various Nd_2O_3 concentrations were prepared by a melt quenching technique and their thermal, vibrational and optical properties were investigated. Thermal stability of the fluorophosphate glass has been determined from differential scanning calorimetric thermograph. The vibrational modes of the present glass have been studied using Raman spectrum. The intensity parameters, Ω_λ (λ=2, 4 and 6) as well as radiative properties for the \"4F_3_/_2 level of Nd\"3\"+ ion, have been evaluated from the absorption spectra of 1.0 mol% Nd_2O_3-doped glass using the Judd–Ofelt theory. Strong near infrared emission at 1.06 =m attributed to \"4F_3_/_2→\"4I_1_1_/_2 transition has been obtained for all the glasses upon 806 nm diode laser excitation. Decay analysis has been carried out and found that the lifetime for the \"4F_3_/_2 level of Nd\"3\"+ ion was found to be higher compared to the other Nd\"3\"+-doped glass host matrices. The quantum efficiency and saturation intensity have been determined to be 93% and 2.32×10\"8 W/m\"2, respectively for 1.0 mol% Nd_2O_3-doped glass. The results indicate that the present glasses could be useful for 1.06 µm laser applications. - Highlights: • Nd\"3\"+-doped K–Al–Ca fluorophosphate glasses were prepared and characterized. • Raman and DSC measurements have been carried out. • Strong near infrared emission at 1.06 μm (\"4F_3_/_2→\"4I_1_1_/_2 transition) has been found. • Optical properties have been evaluated and compared to other host matrices. • Higher lifetime and quantum efficiency have been noticed in the studied glasses","domain":"optical_engineering"}
{"url":"http://www.templedeparis.com/index.php?m=content&c=index&a=lists&catid=122","date":"2021-12-04T23:38:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363125.46/warc/CC-MAIN-20211204215252-20211205005252-00099.warc.gz","language_score":0.8839674592018127,"token_count":274,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__88426212","lang":"en","text":"We have always adhered to the tenet of \"Quality First\", providing ultra-high precision measuring equipment and measuring instruments to the vast market, providing technical measurement solutions for Chinese industry. The products are mainly for medium and high-end products and services, and meet the comprehensive needs of industrial measurement. solution. The company's main business brands: British LK, Nikon Nikon, Mitutoyo Mitutoyo, British Taylor. Germany Mahr, Switzerland TESA, UK RENISHAW and other imported high-end testing equipment and measuring instruments and accessories, to provide customers with high quality, high efficiency, high precision High-end service and metering solutions.\nMain high-precision: three-coordinate measuring machine, composite image measuring instrument, secondary element, industrial CT, laser scanning scanning, optical roughness meter, profiler, roughness profiler, roundness meter, non-contact optical profiler, etc.\nComprehensive metering solution\nDongguan Xinli Precision Machinery Co., Ltd. provides personalized measurement customization, comprehensive technical measurement solutions, and a complete service management system. Widely used in aerospace, automotive, general machinery, locomotive, plastics, electronics, mold, optics, medical and other fields. Especially widely used in large companies such as General Motors, Ford, Boeing, and Airbus.","domain":"optical_engineering"}
{"url":"https://www.rubbernews.com/article/20180917/NEWS/180919949/erhardt-leimer-spotlights-new-tire-rubber-industry-products-at-itec","date":"2023-06-05T06:46:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224651325.38/warc/CC-MAIN-20230605053432-20230605083432-00115.warc.gz","language_score":0.9266825914382935,"token_count":345,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__178332775","lang":"en","text":"AKRON—Duncan, S.C.-based Erhardt+Leimer Inc. exhibited its newest versions of its rubber guiding and handling systems at the International Tire Exhibition & Conference in Akron Sept. 11-13.\n\"We handle rubber reel-to-reel, in a continuous flow,\" said Maulik Desai, sales division manager for Erhardt+Leimer. \"We guide it, we inspect it.\"\nAmong the equipment Erhardt+Leimer displayed at ITEC was its CCP camera for surface inspection and \"missing skin\" detection.\nDuring calendering, blisters can develop, ruining the surface, according to Desai. The CCP camera can detect blisters, allowing customers to stop the calendering process and correct the problem before the batch is ruined, he said.\nErhardt+Leimer also exhibited the EL-Thickness calender, a non-contact thickness measurement system with point laser triangulation and eddy current sensor, according to company literature.\n\"It measures the distance between the sensor and the rolls, and also the senor and the rubber, and you do the math,\" Desai said.\nThe other products Erhardt+Leimer exhibited at ITEC included:\n- The ELGuider + WBM, a highly accurate web guiding tool with a compact, brushless actuating drive; and\n- The EL-Bob edge detection algorithm for the detection of web edges, laminated strips, noses and grooves.\nErhardt+Leimer Inc. is the U.S. division of Erhardt+Leimer GmbH, a 90-year-old company based in Stadtbergen, Germany.","domain":"optical_engineering"}
{"url":"https://www.systemceramics.com/en/products/quality-control","date":"2022-05-21T01:59:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662534773.36/warc/CC-MAIN-20220521014358-20220521044358-00545.warc.gz","language_score":0.8966555595397949,"token_count":186,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__178059019","lang":"en","text":"Control system for detecting defects in the planarity of ceramic tiles\nRedLine is a measuring tool to detect defects in the planarity of ceramic tiles.\nThe device is able to acquire, reconstruct, visualize and analyze the profile of the entire surface of the tile with a precision of ± 1 tenth of a millimeter.\nThe sophisticated camera system with laser line generators (up to 9), analyses the entire surface without contacting the tile measuring even the smallest deformation.\nMeasuring tool to control the tile caliber and dimensions\nLINER monitors the dimensions of the tiles and makes it possible to identify those with irregular shapes (defects) and subdivides the tiles into classes (calibers) on the basis of their dimensions.\nThe selection criterion classifies the tiles according to shape defects (trapezium effect, cushion effect, lack of square shape) and dimensions (outside of caliber and relevant caliber).","domain":"optical_engineering"}
{"url":"https://www.whiteeyecare.com/new-lens-technology-logan-wv-family-eyecare-designer-frames-lenses-contacts-sunglasses/","date":"2018-10-20T07:13:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583512592.60/warc/CC-MAIN-20181020055317-20181020080817-00358.warc.gz","language_score":0.8964461088180542,"token_count":983,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__2338567","lang":"en","text":"New Lens Technology\nASK ABOUT SPECIALTY LENSES FOR YOUR NEW FRAMES.\nDesigner frames may help you look good, but the lenses are what allow you to see well. There are many options to make your lenses lighter weight, non-glare, bifocals without any lines, computer-use designs, PhotoFusion technology that offers sun protection when activated, and different material options that have crisper, clearer optics to give you not only the most optimal vision, but also the most cosmetically-pleasing eyewear available anywhere!\nOur philosophy when prescribing glasses is to educate you on the differences in design and quality of lenses available. Superior quality lenses are typically available through large labs and cannot be made in just a couple of hours. Some commercial stores offer lenses in an hour or so, but you must understand that you are not receiving the best quality lenses available on the market. We use these larger labs to ensure the best quality lenses. You will not receive these lenses in one hour but we believe the wait is well worth it.\nWhite Eye Care Center offers the world’s most advanced progressive lenses by Zeiss featuring Precision Technology that includes:\n- Clear optics - ZEISS Precision: Excellent vision thanks to maximum precision with the advanced eye-lens system, point-by-point optimization in real time and leading-edge freeform technology.\n- Dynamic optics - ZEISS Design Philosophy: Comfortable, dynamic vision with fast focusing at every distance and in every direction.\n- Thin optics - ZEISS Lens Aesthetics: the optimum balance between precise optics and thin, lightweight lenses.\nZeiss DuraVision Platinum\nZeiss Progressive Lens\nZEISS DuraVision Platinum (replaces Crizal)\nLens coatings transform lenses into everyday masterpieces. They harden lenses, make them dirt-resistant, and easier to clean. But that's not the end of the story. Good anti-reflective coatings are equally essential. Try the all-in-one DuraVision Premium Coating from ZEISS: called DuraVision Platinum.\nProtection, cleanability and the ultimate in eyewear fashion\n- Clear and relaxed vision thanks to the lenses' improved clarity.\n- Improved appearance because of fewer irritating reflections on the lens.\n- The most technologically advanced anti-reflective coating from ZEISS.\n- Outstanding durability for robust, scratch-resistant lenses.\n- Easy-to-clean lenses thanks to the antistatic property and CleanCoat layer.\nSINGLE VISION LENSES:\nAre you totally satisfied with your glasses? Whether you need lenses for reading or distance vision, precisely-fitted single vision lenses are a must. ZEISS offers four levels of quality, ranging from traditional spherical up to individualized lenses. Modern ZEISS technology can produce extraordinarily flat and lightweight lenses, even for high prescriptions. Together with your eye care professional, you can tailor your new lenses to meet your own personal needs.\nSingle vision lenses to meet any requirement\n- ZEISS single vision lenses offer four quality categories that are sharply focused on your visual needs.\n- Optimization of the lens power, also for high prescriptions, for easy-to-wear, comfortable eyeglasses and an attractive appearance.\n- High break resistance and therefore ideal for sports and children's glasses.\n- Better night vision: you can also order ZEISS progressive lenses with i.Scription® technology – for even better contrast perception and color intensity.\n- You can select additional lens coatings and extras - such as the DuraVision Platinum® premium coating, tinted lenses or self-tinting lenses with PhotoFusion® technology.\nQuality Eyeglasses Take a Little Extra Time and Expertise.\nIf some other optical providers offer One Hour Service, why should you wait? The most common problem we encounter is a patient unhappy with their glasses made at a discounted eyeglass facility. A high quality pair of eyeglasses can't be delivered in a \"fast food\" style.\n- White Eye Care Center uses years of experience to determine the best prescriptions for you and your lifestyle.\n- Lenses and frames are then custom-measured and fit by our trained technician, who is thinking of your needs and the way you will be using your new eyewear.\n- Our products are latest-generation - no \"older models\" or discontinued versions.\n- Eyeglasses are carefully manufactured in a US facility where they don't ship unless they are just right.\nChecks and balances are in place because we hold our vendors to the highest standards. Unlike many big retailers, we don't own the manufacturing or the lens labs so we are able to hold them accountable to your satisfaction.","domain":"optical_engineering"}
{"url":"https://oakbayoptometry.com/products-services/warranty/","date":"2020-06-05T06:42:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348493151.92/warc/CC-MAIN-20200605045722-20200605075722-00277.warc.gz","language_score":0.9386902451515198,"token_count":167,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__134538147","lang":"en","text":"Oak Bay Optometry is here to help you with your eyeglass needs and to make sure you have the best vision possible.\nFrames – we offer a one to two year warranty (depending on the frame collection) on manufacturing defects.\nLenses – just like our frame warranty, we offer a one to two year lens replacement on manufactures defects.\nWe want you to love your glasses! If you are unhappy with your frame choice, we offer a one-time frame change within 30 days.\nWe offer a one time remake of your lenses within a 90 day period for prescription or lens design changes.\nLenses are a custom product designed just for you. Due to this we are not able to offer refunds on lenses. Cancellations made after the lenses are in process will result in the deposit being forfeited.","domain":"optical_engineering"}
{"url":"https://latestgadgets.co.uk/tag_ricoch/","date":"2021-12-06T03:27:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363229.84/warc/CC-MAIN-20211206012231-20211206042231-00333.warc.gz","language_score":0.9186903834342957,"token_count":760,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__195467959","lang":"en","text":"Why go black or grey? With PENTAX there’s no need to follow the old colourless rules of handheld camera design – with over 40 different colour combinations, your camera can be as colourful as its photos.\nThere are 5 different body colours – Black, Gunmetal, Pure White, Champagne Gold, and Bright Silver. Then you can combine with varied grip colours in Charcoal Black, Cream, Carmine Red, Canary Yellow, Khaki Green, Royal Blue, Burgundy and Pale Pink. When you remember you can also choose a different colour for your lens, you realise there are 40 different colour combinations – the most vivid looking cameras ever made are yours for the taking.\nSo what’s the deal with the cameras most important function? As a camera PENTAX Q-S1 has been equipped with 12.4 megapixels, A1/1.1-inch back-illuminated CMOS sensor, a sensitivity range of ISO 100-12800 and ultrasonic vibrating ‘DRII’ sensor cleaner. The latter function is great if you do not want to see dust from your lens in your pictures – which is about true for everyone. When you consider all this functionality and remember that it is a very compact, easy to carry camera the Q-S1 quickly becomes a very attractive option – and that’s not just in terms of its colourful appearances.\nThe screen at the back is 3.0 inch LCD wide-angle back at the front you get a built-in retractable P-TTL flash. All the following optional lenses are available on the PENTAX Q-S1:\nPENTAX 01 Standard PRIME 8.5mm F1.9 AL [IF]\nPENTAX 02 Standard ZOOM 5-15mm F2.8-4.5\nPENTAX 03 Fish-Eye 3.2mm F5.6\nPENTAX 04 Toy Lens Wide 6.3mm F7.1\nPENTAX 05 Toy Lens Telephoto 18mm F8\nPENTAX 06 Telephoto Zoom 15-45mm F2.8\nPENTAX 07 Mount Shield Lens\nPENTAX 08 Wide Zoom 3.8-5.9mm F3.7-4\nAdapter Q for K-mount Lenses\nOne drawback of the camera, as pointed out by Cnet, is the camera’s lack of wireless functionality: “The camera still doesn’t have built-in Wi-Fi, though it still supports Eye-Fi”. Eye-Fi requires the purchase of a small SD-card like attachment for the camera and allows it to communicate wirelessly with computers and storage devices, so the camera can share files without the need for it to be plugged in via USB. While this can be useful for some, it is a shame that wi-fi functionality has not been included, as Eye-Fi requires paying for the attachment, and many similar top-of-the-line cameras have Wi-Fi built in.\nOn the plus side the camera also includes autofocus while recording videos which allows the camera to produce much higher-quality video with less blur. The camera also includes the ability to mount a K lenses adapter, so the budding photographer can chop and change lenses quickly on-the-fly.\nYou can pre-order the camera at RICOCH Imagine UK for £299.99 (body only) and up to £549.99 for the camera with a 5-15mm lens and a 15-45mm lens included. Shipping will start from the 28th of August 2014.\nFor more details visit RICOCH Imagine UK ltd.","domain":"optical_engineering"}
{"url":"https://casestore.dk/shop/34-ready-for-use/325-hprc2500-ready-for-fujifilm-gfx100/","date":"2024-04-13T09:23:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816587.89/warc/CC-MAIN-20240413083102-20240413113102-00076.warc.gz","language_score":0.8124738931655884,"token_count":175,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__114888185","lang":"en","text":"Take your Fujifilm GFX100 anywhere with the HPRC2500, the most durable and indestructible solution to protect your camera.\nWaterproof, unbreakable and lightweight: this hard case offers maximum protection to the camera and its accessories ensuring extreme safety.\nThe case can feature:\nAc Power Adapter\nAdjustable Lens: FUJIFILM GF 110mm f/2 R LM WR Lens, 23mm f/4 R LM WR Lens, 45mm f/2.8 RWR Lens, 32-64mm f/4 R LM WR Lens without sunshade\nThe images are for the sole purpose of presenting the product. The case is sold WITHOUT equipment.","domain":"optical_engineering"}
{"url":"https://www.billetproofdesign.com/custom-dynamics-probeam-7-black-led-headlamp-h4-connector-fits-1981-2019-harley-electra-glide-ultra-street-glide-and-tri-glide-models-dot-sae-compliant/","date":"2020-06-05T13:02:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348500712.83/warc/CC-MAIN-20200605111910-20200605141910-00078.warc.gz","language_score":0.8675429821014404,"token_count":397,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__25379572","lang":"en","text":"Custom Dynamics® ProBEAM™ 7\" LED Headlight - Black\nEngineered from the ground up using the highest quality automotive LEDs for an incredibly wide optical pattern producing an ideal beam pattern with illumination down the road as well as on either side.\nLow beam consists of three high-power advanced optical D lenses and a daytime running light (DRL)\nHigh Beam keeps low beam illuminated and adds two additional advanced optical D lenses with three projector lenses for an incredibly wide optical pattern producing an ideal beam pattern with illumination down the road as well as on either side.\nMade from a heavy-duty, lightweight die-cast aluminum.\nDurable poly-carbonate lens for long term durability that will not crack like glass due to heat and vibrations.\nThe low-profile housing requires no trim ring and offers a plug and play installation.\nHeadlamps are SAE, DOT and ECE compliant\nFits 1981-2019 Harley Electra Glide, Ultra, Street Glide and Tri Glide Models (See fitment Below.)\nHeadlamps feature a True Black finish.\nLifetime LED warranty.\nMade in the U.S.A..\nOD - 7\"\nDepth - 1-1/2”\nCustom Dynamics® ProBEAM® LED Headlamp is designed for plug and play installation on 1981-2019 Harley-Davidson® Electra Glide®, Ultra, Street Glide® and Tri Glide® models (including CVO™)\nH4-TOUR-ADPT required for plug and play installation on 2014-2019 models). 1994-2019 Road King® models (including CVO™)\nCDTB-H42H9H11 adapter required for plug and play installation on 2014-2019 models).2015-2019 Freewheeler®. 2012-2016 Dyna® Switchback. 1984-2017 FL Softail® models with OEM 7” headlight buckets.","domain":"optical_engineering"}
{"url":"https://www.ottawalife.com/article/putting-the-science-in-science-fiction-mastermind/","date":"2024-04-25T05:15:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00388.warc.gz","language_score":0.9508968591690063,"token_count":1333,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__88641207","lang":"en","text":"Putting the “Science” in “Science Fiction” – Mastermind\nMastermind is a super-villain and enemy of Marvel’s X-Men who has the ability to create illusions, tricking people into seeing and experiencing things that are not actually there. He accomplishes this by projecting the images he wishes to create into the person’s mind, tricking their brain so that the target sees the image – even though it isn’t there.\nBy transmitting signals into a person’s brain, it would be possible to hijack the standard process that creates the sensory experiences people feel, thereby creating an illusion that would be totally indistinguishable from reality. A system that works in this manner would likely never be used, as the technology required would be extremely advanced and the potential for abuse would likely be seen as too high. However, for years, people have been trying to find a way to create truly realistic three-dimensional images that would be indistinguishable from the real thing. The technologies involved have progressed from the old red-and-blue 3D glasses that were first used in 1915 to the sophisticated techniques that led to the recent resurgence in 3D films.\nAlthough there is no telepathy involved, 3D films and images still do their work by tricking the brain. By showing a slightly different and properly calibrated image to each eye, 3D media imitates the way the brain normally processes three-dimensional objects and creates the illusion that the two-dimensional screen shows a 3D image. Although this technology has become more advanced in recent years, it still requires a pair of glasses to be effective. Scientists and inventors are currently working to create systems that will be able to project a true 3D object, allowing people to enjoy them without the need for glasses and even be able to view them from all angles. Once this technology is mastered, it could completely replace conventional screens, as well as open the door for a new way of interacting with machines.\nThe projection of true 3D images, often known as holography, is a difficult field of research… since current display technology\nrequires a medium in order to project an image. One of the easiest and least expensive avenues of holography still uses a medium like this to create an image. In order to create a 3D image, this method uses a technique from the Victorian Age called “Pepper’s Ghost,” where a light is reflected off an object and onto a slanted area of clear film. This creates a transparent duplicate of the image on the film, and the amount of opacity can be controlled by adjusting lighting. Modern images use a projector to shine the image directly onto the film, creating a much clearer and more easily controlled image. These films can be installed on conference tables or placed on large stages and the displays can range from small to enormous and elaborate. Unfortunately, this type of holography relies on a screen and projector, limiting its applications, and is very expensive.\nScientists and inventors are working on other holography techniques in order to get around the limitation of requiring a screen, as this would greatly increase a projector’s utility and portability. Hewlett-Packard is currently examining a method of doing this that involves the use of a transparent screen with LEDs arranged around the edge. The light from the LEDs shines in towards the center, where it is reflected away from the screen at different angles. Because the light is projected outwards and is aimed in slightly different directions, the brain interprets the input it is receiving as a 3D image. Although the current model is not yet versatile enough to create a truly 3D experience, the system is compact enough that it may be possible to incorporate it into portable electronics like laptops and cell phones.\nThe main reason that the 3D experience is not yet convincing is because the current model only allows light to escape in 16 directions, while the next generation promises 64 possible directions. Once this technology becomes capable of true 3D projection, it is predicted to first see use in advertising signs and other large-scale applications before moving into smaller and more portable applications.\nAnother experimental holographic device is the Aerial 3D by Burton. This fascinating device is one of the few that does not rely on any type of optical trickery in order to function, as it creates a truly 3D image. The Aerial 3D accomplishes this by not projecting an image in the traditional sense, but rather by using a laser to create a plasma reaction in the air. These plasma reactions are carefully arranged in points of light that create an image, allowing a fully three-dimensional image to be created. The system is currently limited to creating the equivalent of 10 or 15 frames per second (thus creating choppy images), but work is underway to improve this to reach 24 to 30 frames per second. At this frame rate, the system would be operating at an equivalent speed to basic video, and by adding multiple laser arrays, the colour can be adjusted as well. Although the laser’s high power requirements will likely prevent this system from being used in portable electronics, its power and the fact that it creates true 3D images means it will be very useful in many other applications.\nThe use of holograms as display tools will revolutionize the creation of electronics and the entertainment industry, but another area of holography may lead to an even bigger change in how people interact with their machines. A system being worked on at the University of Tokyo tracks the user’s hand movements as they interact with a hologram and then uses an array of ultrasound projectors to create pressure on the hand in response to contact with the image. This creates sensations of touch and allows the user to not only see the hologram, but to feel as if they are interacting with it physically. Although this technology is still in its infancy and will likely not be able to mimic feelings of texture, it can certainly be used as a form of haptic feedback.\nWhen a system like this is combined with lasers used to measure distance or a set of gloves with position sensors, it would be possible to create a computer that relies completely on holograms to display information and accept the user’s feedback, as shown in many movies and video games. If this type of technology becomes possible, it would completely change how people interact with electronics, with applications ranging from holographic keyboards to computer modelers sculpting their creations by hand without a need for a mouse or stylus.\nFeatured Photo: cmro.travis-starnes.com","domain":"optical_engineering"}
{"url":"https://www.edexdeals.com/collections/information-technology-consumer-electronics-products/products/web-camera-full-hd","date":"2020-08-03T15:33:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439735812.88/warc/CC-MAIN-20200803140840-20200803170840-00064.warc.gz","language_score":0.7457385063171387,"token_count":201,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__119844448","lang":"en","text":"- Built-in sound absorbing microphone, your voice can be heard clearly in 10 meters. Good quality and delicate appearance.\n- Two megapixels, high resolution, and true color images.\n- It can rotate around 360 degrees and up and down 30 degrees, and the Angle can be adjusted as needed.\n- Professional optical lens, high precision.\n- Designed for laptops and desktops.\n- Automatic white balance, automatic color correction.\n- Manually adjustable focal length.\n- Support QQ / WeChat / Win7 / Win8 / Win10 / Vista 32bit.\n- Support Nailing/Facebook/YouTube/etc.\n- DSP chip: computer automatic recognition driver - free\n- Image sensor: CMOS\n- Lens: high quality glass lens\n- High definition: 2.0MP pixels\n- Dynamic resolution: 1920*1080\n- Frame rate: 30fps\n- Focal length: 8 mm infinite\n- Cable length: 150cm","domain":"optical_engineering"}
{"url":"https://polresminahasa.com/qa/question-does-grey-reflect-or-absorb-light.html","date":"2021-10-22T15:21:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585516.51/warc/CC-MAIN-20211022145907-20211022175907-00190.warc.gz","language_score":0.8927853107452393,"token_count":808,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__136840981","lang":"en","text":"- What colors absorb what colors?\n- Does gray light exist?\n- Which colors reflect the most heat?\n- What reflects light better white or silver?\n- Does Blue absorb light?\n- Why does black absorb light?\n- What color has the highest frequency?\n- What colors does GREY reflect?\n- What colors are reflected and absorbed?\n- What colors absorb the most light?\n- What color does not absorb light?\n- What objects can absorb light?\nWhat colors absorb what colors?\nComplementary ColorsColor absorbedColor seenBlueOrangeGreenRedYellowVioletOrangeBlue1 more row.\nDoes gray light exist?\nSo, first answer: No, there ain’t no such thing as gray light. But if your arrange those white LEDs into a matrix and call that matrix a computer screen, then you can dim a portion of those white LEDs and get gray. Yes, Virginia, there is gray light, and it’s what’s coming at you when you look at the image below!\nWhich colors reflect the most heat?\nBlack – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.\nWhat reflects light better white or silver?\nSilver reflects much more light, so you’ll use silver when you position the reflector back away from your subject. If you need to get a reflector right up close, then use white, because it doesn’t reflect nearly as much light as silver.\nDoes Blue absorb light?\nIf something is blue, that means it absorbs all frequencies of visible light except blue (450 nanometer wavelength) light which is reflected or transmitted through.\nWhy does black absorb light?\n“A black object is black because it’s absorbing all the light; it’s not reflecting any color,” Chandrasekhar says. White objects reflect all color. … While black objects absorb the energy from all colors and become hot, the objects gradually release some of that energy back into the air around it.\nWhat color has the highest frequency?\nvioletWhen it comes to visible light, the highest frequency color, which is violet, also has the most energy. The lowest frequency of visible light, which is red, has the least energy.\nWhat colors does GREY reflect?\nObjects that are white, or any shade of grey, reflect or transmit equal portions of the color spectrum. You can see the colors of the spectrum, which range from red to yellow to green and blue, with a prism or in a rainbow. When an object absorbs some colors but reflects others, we see the color that is reflected.\nWhat colors are reflected and absorbed?\nIf only blue light is shone onto a red shirt, the shirt would appear black, because the blue would be absorbed and there would be no red light to be reflected. White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected.\nWhat colors absorb the most light?\nThe only color that does not attract heat is white because white objects reflect all visible wavelengths of light. Black – the color that absorbs all visible wavelengths of light – attracts the most heat, followed by violet, indigo, blue, green, yellow, orange and red, in descending order.\nWhat color does not absorb light?\ncolor whiteWhite light contains all the wavelengths of the visible spectrum, so when the color white is being reflected, that means all wavelengths are being reflected and none of them absorbed, making white the most reflective color.\nWhat objects can absorb light?\nIn truth, all objects, living or inorganic are capable of absorbing light. In all cases, absorption depends on the electromagnetic frequency of the light being transmitted (i.e. the color) and the nature of the atoms of the object.","domain":"optical_engineering"}
{"url":"https://www.ijpr.org/2014-10-07/explaining-the-science-behind-the-nobel-prize-in-physics","date":"2024-04-21T17:54:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817790.98/warc/CC-MAIN-20240421163736-20240421193736-00154.warc.gz","language_score":0.9226215481758118,"token_count":188,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203193305","lang":"en","text":"Explaining The Science Behind The Nobel Prize In Physics\nThree scientists won this year’s Nobel prize in physics for work which led to the creation of LED light. Their breakthrough was in creating blue LEDs. Other researchers had produced red and green LEDS, but you need all three colors to make the bright white light emitted from LED light bulbs.\nTwo of the scientists are in Japan one is American Shuji Nakamura at the University of California Santa Barbara.\nThe Nobel committee cited the three scientists for triggering a fundamental transformation of lighting technology, saying that it can improve life especially for poor people around the world who do not have access to electricity.\n- Brian Greene, professor of physics and mathematics at Columbia University. He’s also the co-founder of the World Science Festival. He tweets @bgreene.\nCopyright 2020 NPR. To see more, visit https://www.npr.org.","domain":"optical_engineering"}
{"url":"http://donegalairsoft.com/product/4x40-scope/","date":"2018-11-20T00:11:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039746171.27/warc/CC-MAIN-20181119233342-20181120015342-00273.warc.gz","language_score":0.941507875919342,"token_count":292,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__187782065","lang":"en","text":"Accessorising your airsoft replica is a rite of passage, and is one everyone goes through, whether it be the addition of functional items, or merely simple additions to make the gun feel more yours. Regardless, there are many options to choose from. One of the biggest choices many people face is what sort of optic, if any, to put on their gun. Some prefer the fast target acquisition benefits of a red/green dot sight, whilst others prefer the longer range approach of the magnified optics. For Red Dot sights it’s just a case of deciding on a shape/style that you like the look of, and going from there. With magnified optics it’s a little more complicated – you have to factor in eye-relief, objective lens diameter, magnification and optical clarity, as well as size and styling.\nA classic rifle scope design, the 4×40 scope offers everything you need in an attractive package. You get the scope, mounts, and lens covers, and the scope itself has more than sufficient objective lens to give you a very clear sight picture, as well as having the perfect magnification for airsoft; anything over 4x is seeing further than you can hit, and is only useful for spotting targets. Due to the size of this scope, it is better suited to longer assault rifles such as the M16, or on Bolt Action rifles.\n|Adjustment||Windage & Elevation|","domain":"optical_engineering"}
{"url":"https://tradeworld.asia/directory/gentwin-led-lighting-co-ltd/","date":"2021-08-05T18:18:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046156141.29/warc/CC-MAIN-20210805161906-20210805191906-00305.warc.gz","language_score":0.8661960363388062,"token_count":532,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__274342615","lang":"en","text":"Gentwin LED Lighting Co., Ltd\n- Posted on inAuto Electrical & Light System, Aviation Safety & Warning Lights, Chandeliers & Wall Sconces, Decorative and Party Lights, Interior and Exterior Lighting, Lights & Lighting Products, Neon & Glow Signs, Optical Components & Optics, Stage, Flood and Commercial Lights, Table Lamps & Lamp Shades\nCOMPANY NAMEGentwin LED Lighting Co., Ltd\nADDRESS3C, Building 3, No. 2188 Jiashan Avenue, Dayun Town,Jiashan County, Zhejiang Province, China\nMAIN PRODUCTSLed Heat Sink,Lamp Heat Sink,High Pole Light,High Mast Lamp\nNUMBER OF EMPLOYEES:100\nTOTAL ANNUAL SALES (US$)-\nCONTACT NO+86 573-84662688\nFAX NO+86 573-84661000\nGentwin LED Lighting Co., Ltd specializes in LED lighting R&D, Manufacture and Sales, which locates at the southeast of China, Zhejiang Province, near Shanghai. Major products are LED Light, LED heat sink, accessories, etc, and offer professional technical support, customized solution and assembly service to clients. Own factory and China invention patent ensure the product performance, quality, price and production capacity.\nThe company covers an area of 2600 square meters, has more than 60 employees and many China patents, including one item of China National Invention Patent, nine items of Utility Model Patent, ten items of Appearance Patent. It has passed the ISO9001:2008 quality system certification in 2010.\nMost of the company products are exported abroad, such as the US, the UK, Germany, Russia, Japan, Korea, Taiwan, India, South Africa and other countries and regions. Because of the advantage of innovative technology and the invention known as heat column, the performance of Gentwin’s product is excellent, stable, and gains the competitive edge in market.\nGentwin’s advanced and core technological product is heat column, which works through phase change heat transfer principle with china invention patent, has super-fast thermal conductivity, and are especially suitable for the high-power LED light, such as LED high bay light. It also can be designed for LED flood light, LED tunnel light, LED down light, LED fishing light, explosion-proof lights and other lights.\nGentwin LED Lighting Co., Ltd is striving for excellence in quality, service to customers, build long term mutually beneficial cooperation relationship. Welcome communication and cooperation.","domain":"optical_engineering"}
{"url":"https://womenlovetech.com/new-lumix-s5-perfect-for-bloggers-and-novices-alike/","date":"2024-02-22T00:06:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473598.4/warc/CC-MAIN-20240221234056-20240222024056-00379.warc.gz","language_score":0.9148336052894592,"token_count":634,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__110149727","lang":"en","text":"The latest camera offering from Panasonic, the LUMIX S5, combines video and still photography in one small, mobile, and robust package that should appeal to bloggers and novices alike.\nBlogger’s rejoice. Panasonic’s new LUMIX S5 hybrid, full frame mirrorless camera retains much of the functionality of its bulkier predecessor the LUMIX S1 but in a much more manageable package that is perfect for both novices and internet bloggers.\nThe new camera provides impressive video capabilities through the powerful 24.2 35mm full frame CMOS sensor that was introduced with the LUMIX S1 but in a small, robust, and highly mobile body.\nHelpfully for bloggers, the viewing screen flips out through 180 degrees, making it ideal for lone bloggers doing stand-ups to camera, along with a handy 5-axis stabilisation system to help limit camera shake.\nThe camera combines 4K 60p 10-bit internal recording and external outputs. Additionally, the camera is compatible with Panasonic’s DMW-XLR1 microphone adaptor which allows professional audio equipment to be used in video creation.\n“The hybrid S5 packs the essential capabilities of our ground-breaking flagship S Series cameras into a small, mobile and robust body,” says Panasonic’s product marketing manager James Choi. “Enthusiasts who want to take their creativity to the next level can harness the incredible image quality of a powerful full-frame sensor.Panasonic’s product marketing manager James Choi\n“The S5’s compact size belies the impressive performance under the hood – this camera is class-leading in the sheer breadth of video and stills capabilities it puts in the hands of content creators.”\nInspired by the flagship S Series professional camera line-up, the S5 provides enthusiasts with a compact, durable camera designed for field use. The camera’s full magnesium alloy weather-sealed body is splash and dust resistant, essential for working in a range of environmental conditions. Dual SD card slots offer further flexibility with relay recording and backup support. A large, high-resolution OLED viewfinder delivers quick response with minimum distortion for easy and accurate framing of the scene.\nPanasonic is currently developing several S Series prime and zoom lenses at popular focal lengths, designed to further expand the creative possibilities for LUMIX S Series users. These new portable and lightweight lenses include a 24mm F1.8, 35mm F1.8, 50mm F1.8, 85mm F1.8 and a 70-300mm F4.5-5.6, all of which will complement the S5 very well.\nIt also has an improved autofocus feature that readily adjusts focus on moving figures, perfect for bloggers who are talking as they move within the frame or pointing out features across a wide area.\nLUMIX S5 Features\n- 4K 10-bit video\n- 5-axis stabilization\n- 180-degree flip-out display\n- Compact size\n- Faster autofocus","domain":"optical_engineering"}
{"url":"https://naukaru.ru/en/nauka/article/29516/view","date":"2023-03-30T07:18:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949107.48/warc/CC-MAIN-20230330070451-20230330100451-00686.warc.gz","language_score":0.7103582620620728,"token_count":1047,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__265286071","lang":"en","text":"In recent years, most results of CaII studies of the solar chromosphere in H and K lines have been based on observations with narrow passband filters. The Baikal Observatory’s full-disk chromospheric telescope for the K CaII line with a birefringent filter (BF) has again been included in observation programs of the Sun Service Station and scientific research. We analyze the methods of telescope and modernized birefringent filter adjustment. After many years of continuous operation, a pressing need arose to replace the damaged parts of the chromospheric telescope. Optics and mechanics of the entire telescope have been cleaned and readjusted. Wavefront interferograms of the teleobjective lens and of the whole telescope show that wavefront distortions of the entire optical path are within 0.25 λ. We present an optical scheme and discuss optical-physical characteristics of BF elements. The interference prefilter and UV polarizers have been replaced, and passbands of BF tunable stages have been adjusted. The BF spectral characteristics provide a fairly high contrast of monochromatic images of large-scale phenomena. Unfortunately, with a collimator and Sony Cyber-Shot DSC-S85 camera, mounted on the telescope, the theoretical resolution of the 180-mm telescope is not realized. We have therefore calculated two optical schemes of telescope changes for possible improvement in spatial resolution.\nchromospheric telescope, birefringent filter, interferometric measurements\n1. Evans J.W. The birefringent filter. J. Opt. Soc. Am. 1949, vol. 39, pp. 229–242. DOI: 10.1063/1.3066514.\n2. Issledovanie vozmozhnosti uvelicheniya propuskaniya polyarizatsionnykh filtrov dlya vidimoi oblasti spektra, ispol’zuemykh v IPF [Studying the possibility of transmittance increase for polarization filters in visible spectral region used in IBF]. Report SOI, LOMO. 1984, 59 p. (In Russian).\n3. Klevtsov Yu.A. Working characteristics of birefringent filter in telescope optical scheme Issledovaniya po geomagnetizmu, aeronomii i fizike Solntsa [Res. on Geomagnetism, Aeronomy and Solar Phys.]. 1984, no. 69, pp. 183–189. (In Russian).\n4. Koronkevich V.P. Formirovanie izobrazheniya v opticheskikh sistemakh [Image formation in optical systems]. Tutorial. Novosibirsk, 2005. NsTU Publ., 76 p. (In Russian).\n5. Reardon K.P., Uitenbroek H., Cauzzi G. The solar chromosphere at high resolution with IBIS. III. Comparison of CaII K and CaII 854.2 nm imaging // Astron. Astrophys. 2009, vol. 500, iss. 3. pp. 1239–1247. DOI: 10.1051/0004-6361/200811223.\n6. Skomorovsky V.I., Kushtal G.I., Lopteva L.S., Proshin V.A., Trifonov V.D., Chuprakov S.A., Khimich V.A. Chromospheric telescope of Baikal Astrophysical Observarory. New light. Solar-Terr. Phys. 2016, vol. 2, iss. 2, pp. 82–103. DOI: 10.12737/ 17376.\n7. Sotnikova R.T. Simultaneous observations of solar chromosphere in Hα and K CaII lines Solnechnye dannye [Solar Data]. 1977, no. 12, pp. 97–100. (In Russian).\n8. Trifonov V.D., Skomorovsky V.I., Pipin V.V., Domyshev G.N., Grigoryev V.M. Chromospheric K SaII telescope. Issledovaniya po geomagnetizmu, aeronomii i fizike Solntsa [Res. on Geomagnetism, Aeronomy and Solar Phys.]. 1992, iss. 99, pp. 128–149. (In Russian).\n9. Trifonov V.D., Golovko A.A. Skomorovsky V.I. Chromospheric observations at Baikal Astrophysical Observatory using CCD cameras. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2004, iss 6, pp. 178–180. (In Russian).\n10. URL: http://ckp-rf.ru/usu/200615 (accessed February 6, 2019).","domain":"optical_engineering"}
{"url":"https://www.floridaeyeclinic.com/services/visian-icl/","date":"2022-12-05T08:31:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711013.11/warc/CC-MAIN-20221205064509-20221205094509-00556.warc.gz","language_score":0.9402468800544739,"token_count":442,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__94354367","lang":"en","text":"Visian Implantable Collamer Lens (ICL)\nThe time has never been better if you’re considering vision correction surgery. We believe in providing our patients with the very best and latest technology available and we consider our practice a FULL SERVICE VISION CORRECTION FACILITY. Are you aware there is an incredible alternative to Lasik and PRK? The Visian Implantable Collamer Lens (ICL) was FDA approved in 2005 and over 250,000 lenses have been implanted worldwide. Many happy patients have been fortunate to learn about and ultimately have Visian ICL surgery and are now enjoying high definition vision without the hassle of contacts or glasses, a dream they never thought would come true.\nThe Visian ICL is an implantable Collamer lens that works with the eye to correct vision and blocks harmful UVA and UVB rays. Unlike Lasik or PRK, there is no tissue removed from the cornea (eye surface). The Visian ICL is implanted through a tiny incision that takes only minutes to complete and remains between the iris and natural lens of the eye . The lens is undetectable with the naked eye so nobody can see it after implantation and you cannot feel it in your eye. Although designed to last a lifetime, another advantage is that the lens is removable should your vision change significantly over the years. Made with Collamer, a technologically advanced material that is exclusive to STAAR Surgical, it is highly biocompatible.\nThe product is indicated for use in patients who are between 21-45 years of age who are nearsighted and demand the highest quality of vision for their active lifestyles. In fact, the US Military has embraced this technology and the Visian ICL has been improving the vision of the bravest people in our nation under the harshest conditions imaginable. The results are nothing short of heroic.\nYour surgeon will determine if you are a good candidate for the Visian ICL and customize a vision correction plan based on your specific prescription, the health of your eyes and your lifestyle needs. To learn more about the many advantages of the Visian ICL visit www.visianinfo.com","domain":"optical_engineering"}
{"url":"https://www.euronews.com:443/next/2022/11/12/electricity-generating-windows-swiss-scientists-design-more-efficient-transparent-solar-pa","date":"2024-02-24T23:09:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474569.64/warc/CC-MAIN-20240224212113-20240225002113-00474.warc.gz","language_score":0.9325578212738037,"token_count":781,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__112347398","lang":"en","text":"Scientists in Switzerland have designed transparent solar panels that could make windows generate electricity.\nAll that natural light flowing through your windows may one day do much more than brighten your mood.\nScientists in Switzerland have reached a new efficiency record for transparent solar cells, paving the way for electricity-generating windows that could help power our homes and devices.\nAlso known as Grätzel cells, dye-sensitised solar cells (DSCs) are a type of low-cost solar cell that uses photosensitised dye attached to the surface of a semiconductor to convert visible light into energy.\nThe previous versions of DSCs were largely reliant on direct sunlight, but scientists at the École Polytechnique Fédérale de Lausanne (EPFL) have found a way to make transparent photosensitisers - molecules that can be activated by light - that can “adsorb” light across the entire visible light spectrum.\n\"Our findings pave the way for facile access to high-performance DSCs and offer promising prospects for applications as power supply and battery replacement for low-power electronic devices that use ambient light as their energy source,\" wrote the authors of the study, published in the scientific journal Nature.\nTransparent solar panels\nDSCs are transparent, flexible, and can be manufactured in a wide range of colours for a relatively low cost. These see-through solar panels are already being used in skylights, greenhouses, and glass facades.\nIn 2012, the SwissTech Convention Center became the first application of DSCs technology in a public building.\nIn 2017, the Copenhagen International School inaugurated its new building covered by approximately 12,000 blue-hued but transparent solar panels that use the same DSC technology.\nThey provide around 300 megawatt hours (MWh) of electricity per year, meeting over half of the school’s annual energy needs.\nSee-through solar tech with 30% efficiency\nBut despite the fact that energy-generating windows have been on the market for a number of years, one recurring complaint was their limited capacity for generating electricity when compared to traditional solar cells.\nThe new breakthrough from the team at EPFL could soon help overcome that barrier.\nThanks to a new molecule design, they have increased the power conversion efficiency of DSCs - in other words, the share of the solar energy shining on them that is converted into usable electricity - reaching beyond 15 per cent in direct sunlight and up to 30 per cent in ambient light conditions.\nFor reference, commercial solar panels currently have an average efficiency of around 20 per cent.\nThe new generation DSCs also demonstrated \"long-term operational stability\" of at least 500 hours.\nMaterials that convert sunlight into electrical energy have a huge potential to fulfil the planet’s increasing need for cost-effective renewable energy technologies.\nGlass windows hold an especially massive potential: Imagine if entire skyscrapers could be turned into vertical solar farms?\nBack in 2017, a team at Michigan State University that developed a new type of solar concentrator creating solar energy when placed over a window deemed that transparent solar technologies could supply around 40 per cent of energy demand in the United States.\nIt estimated that if combined with rooftop solar units - and the right storage technology - that share could rise to almost 100 per cent.\nIn Europe, solar power accounted for 12.2 per cent of the electricity generated in the EU this summer, the highest share on record.\nBased on current trends, it has the potential to meet up to 20 per cent of the EU’s electricity demand by 2040, according to the European Commission.\nMost of the planet’s solar energy currently goes uncaptured. What would things look like if every window around us could harvest it?","domain":"optical_engineering"}
{"url":"https://www.kejako.com/solutions/","date":"2024-03-03T05:58:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476205.65/warc/CC-MAIN-20240303043351-20240303073351-00177.warc.gz","language_score":0.9002168774604797,"token_count":634,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__89000056","lang":"en","text":"Kejako focus on early treatment to maintain visual accommodation by offering a personalized anti-aging laser treatment called ”Phakorestoration”.\nA solution for presbyopia has been described as ophthalmology’s “Holy Grail”(OIS, Dec. 2018 & OFF, Sep.2019)\nAN INNOVATIVE PRESBYOPIA TREATMENT\nPhakorestoration has multiple key benefits :\n- Treat the root causes of Presbyopia\n- Real accomodation, again\n- No cuts, no clear lens extraction\n- Comfortable near vision for midlifers, without reading glasses.\n- Tailored to patient’s vision thanks to our simulation expertise and proprietary numerical model that fits the eye’s biometry\n- Maintains visual accommodation throughout the whole aging process – from the first symptoms of presbyopia until the development of cataracts.\nA SURGERY THAT ADRESS THE ROOT OF PRESBYOPIA\nPresbyopia is the progressive loss of visual accommodation with age. The accommodative amplitude is directly related to the ability of the crystalline lens to change its shape, that’s why it appears in midlife, as soon as the crystalline becomes stiff.\nPhakorestoration focus on rejuvenating the lens material itself through a laser treatment. By softening the lens tissues through a particular pattern, the lens to deform again, allowing to retrieve a comfortable accommodation amplitude for daily life activity.\nOn the contrary of intra ocular implants, Phakoestoration does not need to extract surgically the lens, nor to open the cornea or create cuts. The material change are performed in situ by a femtosecond laser, the light passing through the cornea and focusing in the lens.\nThe laser energy is only focused inside the crystalline lens, allowing to retrieve the properties lost while aging. Everywhere else in the eye, the laser is completely defocused, ensuring no interaction with the retina or the cornea.\nPERFORMANCE AND SAFETY\nPhakorestoration improved lens curvature change by an average of 30% which is transpose in an increase of the available amplitude of accommodation by +1.5 diopters (+60% of the residual accommdative power).\nCalibrated with pre-operative imaging, the laser energy is distributed following the biometry of the lens, whatever the size, position or shape of the lens. In addition, high-quality histology and imaging are proving that the laser interaction is locally changing crystalline lens structure as predicted by our computer model.\nIn vivo safety trials already demonstrate the perfect health of the cornea and retina after surgery in 100% of the cases.\nCUSTOMISED BY NUMERICAL SIMULATION\nKejako has developped the most comprehensive and performant model of the accommodation process. This numerical simulation adapts to the patient biometry and state of presbyopia to predict the optimal pattern of treatment and predict the performance.\nLearn more about our eye model > here <","domain":"optical_engineering"}
{"url":"https://www.bookmarkfeeds.com/global-tunable-filter-market-industry-analysis/","date":"2021-05-08T08:06:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988850.21/warc/CC-MAIN-20210508061546-20210508091546-00140.warc.gz","language_score":0.9470755457878113,"token_count":110,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__70005001","lang":"en","text":"Global Tunable Filter Market size is expected to reach US$ XXMn. by 2026 from US$ XXMn. in 2019, at a CAGR of 8.6% during the forecast period.\nGlobal Tunable Filter Market Overview\nTunable filters are identified to deliver many advantages to any optical system that require wavelength selection and tuning and are expected to witness demand for both wireless and satellite applications. Several types of tunable filters are available that are best suited to the requirements of a wide range of applications like electronic imaging.","domain":"optical_engineering"}
{"url":"https://jfliwp.prod.lamp.cnrs.fr/2013/02/28/diego28022013/","date":"2019-09-23T18:59:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514577478.95/warc/CC-MAIN-20190923172009-20190923194009-00526.warc.gz","language_score":0.895612895488739,"token_count":307,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__192364804","lang":"en","text":"Speaker: Diego Thomas (JFLI & NII)\nDate: 28th February 2013\nPlace: room 214, Faculty of Science Bldg. 7, Hongo Campus, The University of Tokyo\nRecently, a significant effort has been made to develop inexpensive consumer depth cameras that allow the acquisition of depth images at a video rate, e.g., Microsoft Kinect. The video-rate depth cameras are becoming a commodity tool for depth measurement with reasonable accuracy. Such a depth camera brings a new problem setting for 3D reconstruction: how to efficiently and accurately register (i.e. align) a dense set of depth images taken from continuously varying viewpoints. We present a robust and accurate 3D registration method for a dense sequence of depth images taken from unknown viewpoints. Our method simultaneously estimates multiple extrinsic parameters of the depth images to obtain a registered full 3D model of the scanned scene. By arranging the depth measurements in a matrix form, we formulate the problem as a simultaneous estimation of multiple extrinsics and a low-rank matrix, which corresponds to the aligned depth images as well as a sparse error matrix. Unlike previous approaches that use sequential or heuristic global registration approaches, our solution method uses an advanced convex optimization technique for obtaining a robust solution via rank minimization. To achieve accurate computation, we develop a depth projection method that has minimum sensitivity to sampling by reading projected depth values in the input depth images. We demonstrate the effectiveness of the proposed method through extensive experiments and compare it with previous standard techniques.","domain":"optical_engineering"}
{"url":"https://www.wrldinvsn.com/products/aldridge-black-sunglasses-wrldinvsn-x-cev-collection","date":"2023-12-03T02:01:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100476.94/warc/CC-MAIN-20231202235258-20231203025258-00079.warc.gz","language_score":0.8277458548545837,"token_count":164,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__177785551","lang":"en","text":"WRLDINVSN Blackout Shades\nNEW TO THE COLLECTION. ONCE THEY'RE GONE, THEY'RE GONE!\n- Frame Measurements: 53-19-145\n- Lens: CR39 polarized sunglass lens, expertly crafted to reduce glare, shield your eyes from harmful UV rays\n- UV Rating: They have a scratch coating and block 100% harmful UV rays up to 400 nanometers.\n- Frame: Acetate, hand assembled frame\n- FIRST-EVER WRLDINVSN SUNGLASSES!\n- Limited Edition Collaboration with CEV Collection\nNamed in honor of Visionary, Ira Aldridge an American-born British actor, playwright, and theater manager, known for his portrayal of Shakespearean characters.","domain":"optical_engineering"}
{"url":"https://photonics.mit.edu/people/principal-investigators/lionel-c-kimerling","date":"2023-10-02T08:53:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510983.45/warc/CC-MAIN-20231002064957-20231002094957-00674.warc.gz","language_score":0.8997836709022522,"token_count":647,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__315992414","lang":"en","text":"Thomas Lord Professor, Department of Materials Science and Engineering\nDirector, Microphotonics Center\nPrincipal Investigator, Electronic Materials Group\nPh.D., Metallurgy, MIT, 1969\nS.B., Metallurgy, MIT, 1965\nProf. Kimerling's research has had fundamental impact on the understanding of the chemical and electrical properties of defects in semiconductors and in the use of this knowledge in materials processing and component reliability. His research teams have enabled long-lived telecommunications lasers, produced the first 1MB DRAM, developed semiconductor diagnostic methods such as DLTS, SEM-EBIC, and RF-PCD, and pioneered silicon microphotonics. His MIT research on silicon processing has addressed integrated circuit fabrication, microphotonic materials and devices, solar energy conversion and environmentally benign integrated circuit manufacturing. Among the achievements of this research are the creation of a process simulator for wafer contamination gettering; development of a new ultrasensitive measurement for silicon surface perfection; the discovery of a surface passivation method for the reduction of cleaning steps in manufacturing; and the development of in-situ diagnostic tools for wet chemical process control.\nHis group's microphotonics research has produced a series of first ever achievements with the goal of monolithic integration of optical interconnection with integrated microelectronic circuit chips. A few of the legendary results in this area include the optoelectronic physics and materials processing of rare earth-doped semiconductors culminating in the first room temperature operational, erbium-doped silicon light emitting diode; the monolithic integration of MOSFET driver circuitry with Si:Er LEDs and Si/SiO2 waveguides; the process development silicon optical waveguides to yield low loss microphotonic signal distribution; the fabrication and demonstration of the first waveguide-integrated microcavity resonators based on photonic crystal designs at a wavelength of 1.54 microns; the fabrication and demonstration of optical add/drop microphotonic circuits for high capacity WDM data distribution based on microring resonator filter junctions; and the process development and testing of high performance, heteroepitaxial Ge-on-Si photodetectors for microphotonic applications.\nIn addition to being the Thomas Lord Professor of Materials Science and Engineering at MIT and the founding Director of the MIT Microphotonics Center, Dr. Kimerling has also served as Director of the MIT Materials Processing Center (1993-2008) and was Head of the Materials Physics Research Department at AT&T Bell Laboratories when he joined the faculty of MIT as Professor in 1990. He has authored more than 350 technical articles and holds more than 50 patents. He leads the MIT-Industry team of the Communication Technology Roadmap.\nDr. Kimerling is the recipient of the 1995 Electronics Division Award of the Electrochemical Society, the 1996 MIT Perkins Award for Excellence in Graduate Advising, the 1997 Humboldt Senior Scientist Research Award and the 1999 John Bardeen Award of TMS. He is a Fellow of the American Physical Society, the AAAS, TMS, MRS and the School of Engineering of the University of Tokyo.","domain":"optical_engineering"}
{"url":"http://easyscantest.com/medical-utility/","date":"2017-07-27T20:33:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549429485.0/warc/CC-MAIN-20170727202516-20170727222516-00697.warc.gz","language_score":0.9102696776390076,"token_count":292,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__77501324","lang":"en","text":"EasyScan for medical professionals aim to highlight the advantages of retinal screening in a world of an increasingly aging population and chronic diseases. Access to care becomes progressively difficult and waiting times rise. By employing EasyScan in your practice, the throughput-rate of patients can be drastically increased due to the fact that the test only takes 3 minutes and no dilation is needed.\nBenefits of superior retinal imaging with EasyScan\n- Enjoy the benefits of SLO technology and capture high-quality images easily for accurate diagnosis.\n- Reduce examination time, capture images through small pupils and increase patient satisfaction with the fact that no dilation is ever needed.\n- EasyScan is a compact, light-weight device that will fit every office space and enable it to be easily transported between locations.\n- EasyScan can be used in single practices, mobile workstations and with multiple review stations.\nEasyScan dual color cSLO technology\nEasyScan is a dual color cSLO retina camera: it scans with and infrared (785 nm) and pure green (532 nm) laser beam. The different colors are related to different penetration depth of the retina. The green image is reflected at the RNFL (retinal nerve fiber layer) showing the microvascular structure up to the 4th bifurcation. The infrared light is reaching the choroidal vessel layer.\nFind out more about the SLO technology in the EasyScan studies","domain":"optical_engineering"}
{"url":"https://www.cb.uu.se/~joakim/personligt.html","date":"2022-09-24T15:16:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030331677.90/warc/CC-MAIN-20220924151538-20220924181538-00709.warc.gz","language_score":0.8840383887290955,"token_count":172,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__147228186","lang":"en","text":"Joakim Lindblad received his Ph.D. at the Centre for Image Analysis,\nUppsala University, Uppsala, Sweden in January 2003. He got his\nM.Sc. degree in Engineering Physics from the University of Uppsala,\nSweden in 1997.\nHis research interests include finding general methods for segmentation\nof images, feature extraction and classification, possibly with feedback\nto the segmentation step. Presently working with segmentation of\nfluorescence microscopy images of cells in 2D and 3D.\nCentre for Image Analysis\nSE-751 05 Uppsala, Sweden\nPhone: +46 18 4713460","domain":"optical_engineering"}
{"url":"https://in-dresden.info/tu-dresdens-pruuve-project-wins-photonics21-in/","date":"2022-12-08T07:00:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711278.74/warc/CC-MAIN-20221208050236-20221208080236-00424.warc.gz","language_score":0.9347448945045471,"token_count":424,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__27230861","lang":"en","text":"TU Dresden’s PRUUVE project wins Photonics21 In\nOn June 30, 2022, Photonics21 hosted the “Photonics Partnership Annual Meeting”, the most important event of the European photonics industry, in Brussels. Over 300 guests, including CEOs, heads of research institutes and representatives of the European Commission and EU Member States, attended the event. In this context, Dresden physicist Tim Achenbach represented the PRUUVE team and was awarded a very special honor: the Photonics21 Innovation Award, which aims to encourage more entrepreneurship in the field of photonics. “We are very happy to have been able to present our idea to the European photonics community and convince the jury with our new UV sensor. This award is a great honor for us and we would like to sincerely thank Photonics21 and the award committee,” says Tim Achenbach.\nIn their PRUUVE project (Phosphorescent response under UV excitation), the three physicists are developing UV sensor sheets for the precise measurement of UV dose in industrial applications, such as the sterilization of air, water and surfaces or for the rapid curing of coated surfaces. , printing inks, paints or adhesives. The foils are attached directly to the surfaces or components to be irradiated, where they allow optical control of the UV dose. The new technology thus offers fast and reliable monitoring of the success of UV drying and UV disinfection, thus avoiding unnecessary waiting times and overdosing.\n“We are convinced of our versatile PRUUVE technology and will develop new applications and products in the years to come”, adds Dr. Philipp Wellmann. After all, in addition to being used as optical sensors, films can also be used as rewritable labels and much more.\nFor more information: www.pruuve.de\nDisclaimer: AAAS and EurekAlert! are not responsible for the accuracy of press releases posted on EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.","domain":"optical_engineering"}
{"url":"https://cheap4ktv.co.uk/cheap-sony-4k-tvs/sony-camcorder-4k/","date":"2018-07-19T01:45:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590443.0/warc/CC-MAIN-20180719012155-20180719032155-00472.warc.gz","language_score":0.8533039689064026,"token_count":1289,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__79018840","lang":"en","text":"So you are looking to buy a Sony Camcorder 4K for a cheap price? If so then we have great news as we have found the absolute cheapest deals on Sony Camcorder 4K and displayed them below so that you can save a lot of money when buying online.\nSo the cheapest deals we could find on Sony Camcorder 4K are as follows:\n- Newly developed Exmor R CMOS sensor has 1.6x larger pixels than its predecessor, giving better low light quality\n- HD 5 Axis Stabilization - combining Sony's incredible Balanced Optical Steady Shot with Intelligent Active Mode delivers stable movies even while running and zooming\n- The new Zeiss lens features a 20x optical zoom and a wide angle of 26.8mm giving you greater flexibility in your shooting.This product is compatible with Final Cut Pro X and iMovie\n- A new microphone structure reproduces sound in the most faithful way in both stereo and 5.1ch surround sound.Battery type : InfoLITHIUM with AccuPower meter system (V Series)\n- FDRAX53 Handy cameraRechargeable Battery Pack NPFV70AC AdaptorPower CordHDMI Micro CableMicro USB CableOperating Guide\n- 4K image quality - shoot 4K footage that contains about four times more detail than Full HD (3840 x 2160 pixels vs 1920 x 1080) footage\n- Extra-light, extra-compact body - the FDR-AX33 is over 30% smaller and over 20% lighter than current model the FDR-AX100, making it the mobile 4K camcorder\n- Balanced Optical SteadyShot - enhanced image stabilisation enables blur-free footage even when the recording circumstances are shaky or bumpy\n- Enjoy total customisation with ergonomic manual controls, use the intuitive multi-purpose manual ring to adjust zoom, focus, exposure, IRIS, shutter speed, AE shift, or white balance shift mode after using the manual button to select the mode\n- Dual Video Recording - record two movies at the same time, one in the maximum-quality XAVC S or AVCHD format and another in MP4 format\n- Image quality is assured with a 1.0 type Exmor R sensor and Zeiss lens, NFC and Wi-Fi make it easy to share your work\n- Cinema-quality 4K Ultra HD recording\n- 1.0 inch type Exmor R CMOS sensor\n- ZEISS Sonnar T* lens with 12x optical zoom\n- Sensor:1 / 3.95 inch Exmor R CMOS sensor with 6.59 MP.\n- Integrated LED light and Sony G lens with 12x optical zoom, 24x clear, 200x digital, servo / manual.\n- Dots:1 cm (0.39 inches), OLED 1.44 million, LCD monitor 7.5 cm (3 inches), 0.921 million.\n- --In the event that this product is sold and dispatched by a private seller, the respective seller's own terms and conditions apply.\n- Contains:Sony HXR-MC2500E NXCAM AVCHD shoulder camcorder, black, lens hood, lens flap, shoe cover, viewfinder eyecup, microphone, windscreen, video treble filter, USB cable, rechargeable battery (NP-F570), power adapter AC-L100C.\n- Optical SteadyShot with Intelligent Active Mode\n- XAVC S (HD 50 Mbps) and AVCHD recording\n- Exmor R CMOS sensor. 60x clear image zoom\n- 26.8 mm wide-angle ZEISS lens with 30x optical zoom\n- LCD angle adjustment-Maximum opening angle is 90 degree and maximum turning angle is 270 degree\n- Keep your footage steady and reduce image blur with Sony's Optical SteadyShot\n- A 26.8mm wide-angle high quality Carl Zeiss Vario Tessar Lens offers you more creative freedom - whether you're shooting cramped interiors, sprawling cityscapes or vast open spaces.\n- Let the scene come to you with powerful 30x optical zoom and 60x Clear Image Zoom.\n- Share your movies anywhere thanks to the Built-In Projector\n- The fast BIONZ X image processor in combination with the detailed Exmor R CMOS sensor allows to faithfully reproduce every aspect of the scene in precise, natural detail.\n- Ultra-HD 4K images, pro-quality sound, and a full range of manual controls. Create truly life-like footage\n- Cinema-quality 4K Ultra HD recording\n- Precision Sony G Lens with 20x zoom\n- Extensive manual control for creativity\n- 4K Ultra HD (3840 x 2160) recording\n- Balanced Optical SteadyShotTM\n- 29.8mm ZEISS Vario-Sonnar T* lens\n- 10x optical zoom with 15x Clear Image Zoom (4K)\n- Versatile manual settings\nA Guide to Buying a Sony Camcorder 4K\nSo buying a Sony Camcorder 4K is a very popular option as they are just brilliant but we have some useful information below that can help with your purchase.The term “4k” comes from Hollywood. The UHD specifications used in Hollywood films are slightly different (4,096 pixels wide).\nSo with so many confusing names and manufacturer’s not adhering to set terminology, how in the world can you find a cheap TV with this new exciting technology? Luckily, it doesn’t take much to get the best from your new shiny 4k TV.\nSize of the BesselBe aware your set may be left in Vivid mode by default!\nMost TVs arrive with at least one preset picture mode that delivers remarkably accurate colors and contrast and will suffice for the average viewing situation. Although the general idea 4K TVs is amazing i.e. the whole idea of having a better experience when you buy one of these TVs. Virtually anyone who have seen a 4K TV on display would want one for themselves. The sad truth however is that these TVs don’t come cheap. The can be quite expensive, which is why most people don’t really bother themselves about buying one just yet.","domain":"optical_engineering"}
{"url":"https://www.intersense.com/?nproject=improved-registration-for-vehicular-ar-using-auto-harmonization","date":"2023-11-28T13:30:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099514.72/warc/CC-MAIN-20231128115347-20231128145347-00717.warc.gz","language_score":0.8935787677764893,"token_count":225,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__158106347","lang":"en","text":"Improved Registration for Vehicular AR using Auto-Harmonization\nAuthor: Eric Foxlin, Thomas Calloway, Hongsheng Zhang, Thales\nPublished: IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, VOL. 21, NO. 12, DECEMBER 2015\nThis paper describes the design, development and testing of an AR system that was developed for aerospace and ground vehicles to meet stringent accuracy and robustness requirements. The system uses an optical see-through HMD, and thus requires extremely low latency, high tracking accuracy and precision alignment and calibration of all subsystems in order to avoid mis-registration and “swim”. The paper focuses on the optical/inertial hybrid tracking system and describes novel solutions to the challenges with the optics, algorithms, synchronization, and alignment with the vehicle and HMD systems. A system accuracy analysis is presented with simulation results to predict the registration accuracy. Finally, a car test is used to create a through-the-eyepiece video demonstrating well-registered augmentations of the road and nearby structures while driving.","domain":"optical_engineering"}
{"url":"http://www.swanlakefelt.com/dp-heat-resistance-pre-oxidized-fiber-felt.html","date":"2019-09-19T10:52:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573476.67/warc/CC-MAIN-20190919101533-20190919123533-00093.warc.gz","language_score":0.8150289058685303,"token_count":759,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__88161518","lang":"en","text":"YOU MAY LIKE\nHigh intensity with long use safety antistatic heat resistance ptfe adhesive tape\nHigh Temperature/Heat Resistance Silicone Rubber Hose\n30mm fiber optic cable protection sleeve, fiber optic sleeve/protection sleeve,heat shrink sleeve for fiber optic fusion splice\nFactory price PC material Dome/ HorizontalType heat shrink sleeve for fiber optic fusion splice\nSpecifications Fiber Optic Splice Closure 1 Horizontal Dome types 2 FOST with 12 24 48core 3 Entry port 2in2out 3in3out 4in4out 1in 6out PC material Dome Horizontal Type heat shrink sleeve for fiber optic fusion splice description FEATURES n Dome or Horizontal heat shrink sleeve for fiber optic...\nhigh performance heat shrink sleeve for fiber optic fusion splice price\nChina high quality heat resistance glass fiber coated ptfe teflon with glue sealing insulation tape\nProduct Description PTFE COATED FIBERGLASS FABRIC ADHESIVE TAPES heat resistant insulation tape Specifications1 Manufacturer stocked 2 Super non sticky character high temperature resistance 3 PONY SGS PTFE COATED FIBERGLASS FABRIC ADHESIVE TAPES Description PTFE COATED FIBERGLASS FABRIC ADHESIVE...\nChina factory best price heat resistance non stick fiber glass cloth for plastic bag machine sealing\nProduct Description Product Description China factory best price heat resistance non stick fiber glass cloth for plastic bag machine sealing ptfe teflon fiberglass fabric fiberglass fabric use best imported Fiberglass yarn as the weaving material to plain knit or specially knit into superior...\nFORST New-type Heat Resistance Glass Fiber Needled Felt\nFORST New type Heat Resistance Glass Fiber Needled Felt Characteristic 1 Fiberglass filter media 2 Large ventilation quantity 3 Small resistance 4 High dust holding capacity 5 Long operating life Speciality 1 Fiberglass filter media is made of long fiberglass in non woven way large ventilation...\nHeat resistance woven glass fiber cloth for equipment\nSpecifications Heat resistance woven glass fiber cloth for equipment 1 High filtration efficiency 2 Easy to clean Heat resistance woven glass fiber cloth for equipment product 1 These products possess the properties of strong acid resistance good alkali resistance and good performance at the...\nHeat Resistance Polyimide Generator Stator Wedge\nHeat Resistance Glass Fiber Cloth Adhesive Tape\nExtrusion Heat Resistance Silicone Rubber Hose\nPre-oxidized Carbon Fiber\nSpecifications Pre oxidized fiber is the intermediate product of carbon fiber we supply 1K 3K 6K 12K 24K 48K 120K 240K 360K and Etc Pre oxidized fiber pre oxidized fiber is the intermediate product of carbon fiber and it is a kind of black fiber with a part of cyclization structure formed after the...\nPre-oxidized Carbon Fiber\nSpecifications We supply high performance PAN based carbon fiber precursor with stable quality low cost stable spinning fluid The high performance PAN based carbon fiber precursor is produced through advanced technological process which is characterized as simply process stable quality low cost...\nsuper wide heat resistance insulation silicon coated glass fiber fabric\nHigh quality G10 black epoxy fiber glass plate/heat resistance sheet for drone/PFV\nOEM carbon glass fiber plate/heat resistance sheet for drone/FPV\nfactory sales 100%Fire resistant Pre-oxidation fiber felt\\The carbon fiber felt\nManufacturers to provide 100%Fire resistant Pre-oxidation fiber felt \\ The carbon fiber needle punched felt\nHigh temperature resistance 100% carbon fiber felt for industry\nSEND US A MESSAGE\nWe didn't put all products on website. If you can't find the product you're looking for, please contact us for more information.","domain":"optical_engineering"}
{"url":"https://ijeedc.iraj.in/abstract.php?paper_id=19248","date":"2023-06-07T11:21:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653764.55/warc/CC-MAIN-20230607111017-20230607141017-00486.warc.gz","language_score":0.8651310801506042,"token_count":154,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__96859409","lang":"en","text":"Measuring The Dimensions of 3D Rectangular Objects Using A 2D Camera\nLogistics automation industry requires cost-effective and practical solutions to measure the object dimensions.Inthis research, it is aimed to determine the dimensions of rectangular objects such as boxes practically and economically by using a 2-dimensional (2D) camera. This paper proposes using computer vision technics for this purpose. Firstly, predefined aruco markers are used as reference measurements, and then the dimensions of boxes are computed proportionally. The relationship between the calculated and the actual measurements demonstrates good agreement withaverage error rangesbetween 1.6% and 13%.\nKeywords - Aruco Marker,Corner Detection, Edge Detection, Image Processing, Machine Learning.","domain":"optical_engineering"}
{"url":"https://uwnthesis.wordpress.com/2015/03/03/privacy-glasses-that-let-you-go-incognito-in-a-world-filled-with-facial-recognition-software/","date":"2017-03-27T18:26:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218189495.77/warc/CC-MAIN-20170322212949-00114-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8735330104827881,"token_count":186,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__191095880","lang":"en","text":"Privacy glasses that let you go incognito in a world filled with facial recognition software\n- Invisibility Glasses by AVG, a software security company, use infrared LED light and retro-reflective materials to block a clear facial capture\n- Glasses, which are only a prototype, break facial detection software, such as technology used on Facebook\nThe developers of the privacy glasses, AVG Innovation Labs, said that with the advancement in facial recognition technologies like Facebook’s DeepFace system, they began investigating how technology can be used when it comes to securing online privacy.\nDeepFace will be able to determine whether two captured faces are of the same person with 97.25 per cent accuracy.\nAnd this coupled with other advancements left developers questioning how to combat privacy.\nThe glasses, through the use of infrared LED light and retro-reflective materials, block a clear facial capture of the wearer, developers claim.","domain":"optical_engineering"}
{"url":"https://homeinthewild.com/products/pet-500-hk-chrome-829-500","date":"2024-04-21T07:28:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.87/warc/CC-MAIN-20240421071342-20240421101342-00006.warc.gz","language_score":0.9033010005950928,"token_count":492,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__203417974","lang":"en","text":"The Petromax HK500 is among the most famous lamps in the world. Thanks to its impressive light output of 400 watts, the lamp combines a unique technique with an elegant design. Since the Petromax high pressure lamp was invented in 1910, its spellbinding brightness gives light to the darkness.\nA weatherproof and reliable lamp With its bright light, the robust pressure lamp not only fascinates retro design lovers, globetrotters and outdoor enthusiasts, but is also used by humanitarian aid organizations and armed forces. Thanks to its temperature-resitant borosilicate glass, which is manufactured by the company Schott, the lamp is a reliable light source that can be used in all weathers.\nA unique high pressure technology & high-quality German manufacturing The excellent light output of the Petromax lamp results from a simple, yet fascinating principle: The kerosene under pressure is conducted into a carburettor, where the evaporated fuel reacts to the mantle impregnated with luminous salt, which results in a bright, warm light. In order for this principle to work flawlessly, the more than 200 pieces of the lamp are still assembled by hand.\nThe right accessory for each situation Besides various reflectors, and storage and transport bags, many other accessories are suitable for Petromax lamps. For example, they can be turned into a stove or a radiator. Thanks to this vast range of high-quality accessories, the Petromax lamp can be personalized.\nLegendary Brightness: Offers an impressive light output of 500 CP, blending unique technology with elegant design.\nHistorical Significance: Since its creation in 1910, the Petromax lamp has been renowned for its unparalleled illumination.\nDurability & Versatility: Favored by retro design aficionados, travelers, outdoor enthusiasts, humanitarian groups, and armed forces for its robust design.\nWeatherproof Construction: Features temperature-resistant borosilicate glass from Schott, ensuring reliability in all weather conditions.\nAdvanced Pressure Technology: Utilizes kerosene under pressure which, when combined with a luminous salt-impregnated mantle, produces a warm, bright light.\nHand-Assembled Precision: Over 200 components, all meticulously hand-assembled, ensure the lamp's exceptional performance.\nCustomizable Accessories: Comes with various accessories, enabling functions like stoves or radiators and allowing for personalized use.","domain":"optical_engineering"}
{"url":"https://tmb.com/ledhead/","date":"2023-12-08T10:05:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100739.50/warc/CC-MAIN-20231208081124-20231208111124-00331.warc.gz","language_score":0.7072443962097168,"token_count":149,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__118124171","lang":"en","text":"Film & Television LED Lighting\nThe first LED studio fresnel with true incandescent quality!\nLedHead lights effectively replicate the output quality of an incandescent studio fresnel with a flat field and a true single shadow. Available in 100 or 200 Watt versions with 3200K tungsten or 5600K daylight color temperature.\n- Output similar to an 800W halogen fixture\n- Full dimming with no color shift\n- 3200K or 5600K color temperature\n- Beam angle: 10° – 60°\n- DMX512 or local control\n- Neutrik XLR connectors\n- Temperature regulated\n- Square dimming curve\n- 45 dbA\n- Includes 4-leaf barndoor","domain":"optical_engineering"}
{"url":"https://golovachlena.com/eyes-deserve-a-break-exploring-blue-light-filter-eyewear/","date":"2024-02-25T08:05:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474594.56/warc/CC-MAIN-20240225071740-20240225101740-00282.warc.gz","language_score":0.9324691295623779,"token_count":868,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__206851870","lang":"en","text":"Blue light is a high-energy, short-wavelength light that becomes part of the noticeable light range. It exists in all-natural sunshine and also is in charge of heaven shade of the skies.\nResources of Blue Light\nAside from sunshine, digital tools such as mobile phones, computer systems, as well as LED lights give off considerable quantities of blue light. Extended direct exposure to these resources can have unfavorable results on our eyes as well as total wellness.\nThe Effect of Blue Light on Eyes\nJust How Does Blue Light Affect Our Eyes?\nBlue light can visit https://justprintcard.com/enhancing-visual-wellness-the-benefits-of-blue-light-filter-glasses/ pass through the eye and also get to the retina, possibly triggering damages with time. It is understood to add to electronic eye pressure, interrupt rest patterns, and also raise the danger of age-related macular deterioration.\nDigital Eye Stress\nExtended direct exposure to displays can result in electronic eye pressure, defined by signs like eye exhaustion, dry skin, as well as obscured vision. Blue light filter glasses intend to relieve these signs.\nBlue Light Filter Glasses: Just How Do They Function?\nDevice of Blue Light Filters\nBlue light filter glasses are developed with unique coverings that precisely obstruct or take in blue light while enabling various other wavelengths to go through. This lowers the quantity of blue light that gets to the eyes.\nSorts Of Blue Light Filter Glasses\nThere are various sorts of blue light filter glasses offered, consisting of prescription as well as non-prescription choices. Some are particularly made for players, while others deal with white-collar worker as well as people seeking basic security.\nMany clinical research studies have actually checked out the impacts of blue light filter glasses. They recommend that putting on these glasses can enhance rest high quality, lower eye stress, and also secure the retina from prospective damages.\nLaw of Rest Patterns\nAmong the considerable advantages of blue light filter glasses is their capability to control body clocks. By minimizing direct exposure to blue light at night, they can aid boost the high quality of rest.\nPicking the Right Blue Light Filter Glasses\nVariables to Think about\nWhen picking blue light filter glasses, aspects such as lens top quality, design, and also fit are important. It’s vital to pick a set that fits your demands and also way of life.\nExamination with an Eye doctor\nIf you are experiencing serious eye pain or vision problems as a result of evaluate time, getting in touch with an eye doctor is a good idea. They can supply tailored referrals for blue light filter glasses.\nTo conclude, the scientific research behind blue light filter glasses is based in the understanding of exactly how blue light impacts our eyes as well as general health. These cutting-edge glasses options offer a sensible strategy to minimizing the possible injury brought on by extended direct exposure to displays. By uniquely obstructing blue light, they supply a guard of defense for our eyes, lowering eye stress as well as boosting rest top quality. To guard your aesthetic health and wellness in today’s electronic globe, think about purchasing a set of blue light filter glasses.\nFrequently asked questions\nDo blue light filter glasses help everybody?\nBlue light filter glasses can profit most people that invest prolonged durations before displays. Nevertheless, their efficiency might differ from one person to another.\nHow much time should I put on blue light filter glasses daily?\nIt’s suggested to put on blue light filter glasses throughout prolonged display time, specifically at night. Speak with an eye doctor for individualized referrals.\nCan I put on blue light filter glasses over my prescription glasses?\nYes, there are alternatives for prescription blue light filter glasses that can be put on over your existing glasses.\nWhere can I buy top quality blue light filter glasses?\nYou can discover a variety of blue light filter glasses on the internet and also at optical shops. Guarantee they satisfy the essential top quality requirements and also offer the degree of defense you need.\nAre blue light filter glasses ideal for youngsters?\nYes, blue light filter glasses are readily available for youngsters and also can be useful in decreasing eye pressure triggered by long term display time.","domain":"optical_engineering"}
{"url":"https://www.salemdist.com/vision/showroom","date":"2019-08-18T06:34:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027313715.51/warc/CC-MAIN-20190818062817-20190818084817-00120.warc.gz","language_score":0.8488045334815979,"token_count":368,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__771900","lang":"en","text":"Lens Surfacing Equipment\nReconditioned CNC OptiDrill\nAEM-200 FreeForm Lens Engraving System provided by SALEM Vision\nThe AEM-200 is an innovative laser-free engraving system designed to accurately and cost effectively engrave freeform lenses. Developed by opticians for opticians at Berkshire Laboratories in England, the design elegantly simplifies the engraving process by eliminating complicated and expensive components used in conventional laser engraving units. The AEM-200 features a micro-tipped stylus controlled by Berkshire Laboratories' (UK) patent pending advanced engraving system coupled with PCT technology to ensure fast and accurate engraving of freeform lenses. It also features automatic curvature control to ensure uniform markings in all bases and successfully engraves any organic, high-index, polycarbonate and TrivexTM lens materials. As with Berkshire Laboratories’ CNC OptiDrill, their new FreeForm Lens Engraver offers affordability, ease of operation and maintains optimal performance in every lab.\nMaximum engraving and reliability performance\nNo masks required\nSmooth and uniform engraving\nHighest quality marking\nOrganic, high-index, polycarbonate and TrivexTM materials\nUnique BOL AES-Technology (patent pending)\nLowest operational costs, lowest maintenance costs, lowest investment\nSimple to operate with comprehensive software\nAutomatic curvature control for uniform markings on all bases and materials\nDimensions – 480 x 330 x 458mm (19 x 13 x 18 inches) Weight – 19.5kg (43 lbs)\nThe New AEM-200 FreeForm Lens Engraving System from Berkshire Laboratories available exclusively from SALEM Vision.\nCall 1-800-234-1982 ext 232","domain":"optical_engineering"}
{"url":"https://www.simplylighting.ca/benefits-of-led","date":"2022-12-03T07:59:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710926.23/warc/CC-MAIN-20221203075717-20221203105717-00826.warc.gz","language_score":0.9373372197151184,"token_count":588,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__51561530","lang":"en","text":"BENEFITS OF LED\nWarehouse - Before\nWarehouse - After LED Installation\nLED's offer the most efficient way of illumination and lighting, with an estimated energy efficiency of 55%-80% when compared to traditional lighting and conventional light bulbs. This means that the majority of the electrical energy is converted to light, rather than being lost and converted into other forms of energy such as heat.\nBecause the long life span of LED lights, you can achieve significant energy savings also when it comes to maintenance and replacement due to the long operational life times of LED lighting.\nLED bulbs and diodes have an outstanding operational life time expectation of 50,000+ hours. This means if you leave the LED fixture on for 12 hours per day it would take over 10 years before you would have to replace the LED bulb.\nLED lights contain no toxic materials and are 100% recyclable. The long operational life time span mentioned above means also that one LED light bulb can save material and production of 25 incandescent light bulbs.\nLEDs are extremely durable and built with sturdy components that are highly rugged and can withstand even the roughest conditions, including construction or manufacturing sites. LED lights are resistant to shock, vibrations and external impacts and make great outdoor lighting systems for rough conditions and exposure to weather, wind, rain or even external vandalism, traffic related public exposure.\nZero UV Emissions\nLED illumination produces little infrared light and close to no UV emissions. Because of this, LED lighting is highly suitable not only for goods and materials that are sensitive to heat due to the benefit of little radiated heat emission, but also for illumination of UV sensitive objects or materials.\nLEDs can be combined in any shape to produce highly efficient illumination. Individual LEDs can be dimmed, resulting in a dynamic control of light, color and distribution.\nOperational in Extremely Cold or Hot Temperatures\nLED are ideal for operation under cold and low outdoor temperature settings. For fluorescent lamps, low temperatures may affect operation and present a challenge, but LED illumination operates well also in cold settings, such as for outdoor winter settings, freezer rooms etc.\nLED is designed to focus its light and can be directed to a specific location without the use of an external reflector, achieving a higher application efficiency than conventional lighting. Well-designed LED illumination systems are able to deliver light more efficiently to the desired location.\nLED lights brighten up immediately when powered on, which has great advantages for infrastructure projects such as e.g traffic and signal lights.\nLED lights can switched off and on frequently and without affecting the LED’s lifetime or light emission. In contrast, traditional lighting may take several seconds to reach full brightness, and frequent on/off switching does drastically reduce operational life expectancy.","domain":"optical_engineering"}
{"url":"https://www.thegiftsformen.com/short-range-wide-screen-projector.php","date":"2024-04-14T04:49:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00104.warc.gz","language_score":0.8770073652267456,"token_count":316,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__67852864","lang":"en","text":"Short Range Wide Screen Projector\nThis Casio Lamp-Free Projector provides a wide screen projector that can be used in short ranges. Display images up to 50 inches wide from less than a foot away!\nThe 3,100 lumen rating projector combines a state of the art DLP chip, condensor lens, and hybrid LED-laser light to project images and video at only 11.5 inches from the screen or wall.\nDisplay in native 1280 X 800 resolution (720p) gives you bright crisp images with precise color representation. The contrast ratio is 1800:1. The solid state light source will last the life of the projector (up to 20,000 hours). Save the hassle and expense of replacing the lamp every few years!\nEven though the Casio XJ-UT310WN projector measures 16.5 inches long by 13 inches wide by 6 inches high, it was a built in 16 watt speaker that fills even the largest rooms with sound.\nThe wireless LAN adapter is perfect for presentations from a computer or laptop. The HDMI, USB, and component inputs allow you to easily send video or images to the projector from any device.\nQuick start mode allows the projector to reach full brightness in only 8 seconds, and it instantly turns off without requiring a cool down period like most projectors.\nThe Casio projector rests nicely on a table top, bookshelf, or other sturdy stand. This works nicely for small areas where a normal projector couldn't fit. It can also be wall or ceiling mounted with the optional mounting device.","domain":"optical_engineering"}
{"url":"https://technsight.com/cloud-vision-pro-a-vision-system-with-no-sensors-no-scanners-just-cameras/","date":"2024-04-16T16:29:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817103.42/warc/CC-MAIN-20240416155952-20240416185952-00746.warc.gz","language_score":0.9309191107749939,"token_count":766,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__204168452","lang":"en","text":"Assuming that the cloud server can handle the processing load and the communication latency is negligible, would it be possible to implement a vision system with only cameras as the input devices?”\nCloud Vision Pro: A Vision System with Only Cameras\nVision systems are applications that use computer vision techniques to perform tasks such as object detection, face recognition, scene understanding, and more. Vision systems typically require a combination of input devices, such as cameras, sensors, and scanners, and processing devices, such as computers, servers, and cloud platforms.\nHowever, what if we could simplify the vision system architecture by using only cameras as the input devices, and offloading the processing to a cloud server? This is the idea behind Cloud Vision Pro, a hypothetical vision system that leverages the power of cloud computing and the ubiquity of cameras.\nThe feasibility of Cloud Vision Pro depends on two main factors: the processing capacity of the cloud server, and the communication latency between the cameras and the server. Let us examine each of these factors in detail.\nThe processing capacity of the cloud server determines how fast and how accurately the vision system can perform the desired tasks. The processing capacity depends on the hardware specifications, such as CPU, GPU, RAM, and storage, as well as the software frameworks, such as TensorFlow, PyTorch, OpenCV, and more.\nThe processing capacity also depends on the number and complexity of the tasks, the number and resolution of the cameras, and the amount and format of the data. For example, a task that involves detecting multiple objects in a high-resolution video stream from multiple cameras would require more processing capacity than a task that involves recognizing a single face in a low-resolution image from a single camera.\nThe processing capacity of the cloud server can be scaled up or down according to the demand and the budget. Cloud platforms, such as AWS, Azure, and Google Cloud, offer various options and services for cloud computing, such as virtual machines, containers, serverless functions, and more. These options and services allow the users to customize and optimize the processing capacity of the cloud server according to their needs and preferences.\nThe communication latency between the cameras and the server determines how fast and how reliably the vision system can receive and send the data. The communication latency depends on the network infrastructure, such as bandwidth, throughput, and protocol, as well as the network conditions, such as congestion, interference, and noise.\nThe communication latency also depends on the amount and format of the data, the number and location of the cameras, and the security and privacy requirements. For example, a data stream that involves sending high-resolution video frames from multiple cameras located in different regions would require more bandwidth and incur more latency than a data stream that involves sending low-resolution image snapshots from a single camera located in the same region.\nThe communication latency between the cameras and the server can be reduced and improved by using various techniques and technologies, such as compression, encryption, caching, edge computing, and more. These techniques and technologies allow the users to minimize and mitigate the impact of the communication latency on the performance and quality of the vision system.\nIn conclusion, Cloud Vision Pro is a vision system that uses only cameras as the input devices, and offloads the processing to a cloud server. The feasibility of Cloud Vision Pro depends on the processing capacity of the cloud server, and the communication latency between the cameras and the server. These factors can be adjusted and optimized by using various options, services, techniques, and technologies offered by cloud platforms and network providers. Cloud Vision Pro is a potential solution for simplifying and enhancing the vision system architecture and functionality.","domain":"optical_engineering"}
{"url":"http://www.vrlaser.co.za/laser.html","date":"2018-02-22T05:02:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891814002.69/warc/CC-MAIN-20180222041853-20180222061853-00027.warc.gz","language_score":0.8761623501777649,"token_count":205,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__236433639","lang":"en","text":"Precision Laser Cutting\nOur name is derived from the precision laser cutting that we offer our customers. We have 6 laser machines which can cut various steel plate upto 20mm thick. Our equipment is serviced and maintained by on-site technicians.\nLaser cutting works by directing the output of a high-power laser most commonly through optics.\nThe laser optics and CNC (computer numerical control) are used to direct the material or the laser beam generated.\nOur laser machines , the largest having the bed size of 13m x 25m, means we are capable of handling all sizes and types of material, working 24 hours a day, seven days a week.\nTrumpf 4000x2000 | 3.2KW\nHeld 4000x2000 | 3KW\nRobomatix 13000x25000 | 3KW\nHeld 6500x2500 | 5KW\nMicrostep 6500x2500 | 4KW\nMicrostep 6000x2400 | 4KW","domain":"optical_engineering"}
{"url":"https://ca.urth.co/collections/variable-nd","date":"2024-04-16T03:54:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817043.36/warc/CC-MAIN-20240416031446-20240416061446-00071.warc.gz","language_score":0.9308274984359741,"token_count":350,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__139882811","lang":"en","text":"Sorry there are no products found. Clear filters\nWhat's the main function of a Variable ND Filter?\nA Variable ND (Neutral Density) Filter is all about controlling light. It's super handy for managing how much light gets into your camera. You can adjust its density to suit various lighting situations, which is great for pulling off creative effects like motion blur, even when it's really bright out.\nHow do you change the strength of a Variable ND Filter?\nTo adjust a Variable ND filter, you just need to rotate its two polarizing layers. This is done by turning the outer ring, which changes the filter's density. This way, you can control the light passing through your lens, adapting easily to whatever lighting conditions you're facing.\nCan a polariser and a Variable ND Filter be used concurrently?\nWhile it's technically feasible to stack a polariser and a variable ND filter, it's generally advised against. Both filters influence the polarisation of light, and using them together can lead to undesired effects such as uneven polarisation, colour shifts, and diminished image quality. For combined effects, a singular filter that integrates both polarising and ND features is recommended for more consistent outcomes.\nWhat distinguishes an ND filter from a variable ND filter?\nA standard ND (Neutral Density) filter offers a fixed level of light reduction, consistently dimming the scene. In contrast, a Variable ND filter provides adjustable light reduction through the rotation of its outer ring, giving you more flexibility in responding to varying lighting situations without the need to interchange the filter.\nYour cart is currently empty.\nYou might also like\nGlass Cleaning Kit\nA consciously designed Glass Cleaning Kit gives you all the tools","domain":"optical_engineering"}
{"url":"http://www.lasik-op.eu/en/lasik/presbyopia/index.php","date":"2020-04-07T06:29:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585371675859.64/warc/CC-MAIN-20200407054138-20200407084638-00075.warc.gz","language_score":0.9302744269371033,"token_count":436,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__117983496","lang":"en","text":"1. The Laser\nA well-proven technique for presbyopia is the « Presbyond Laser Blended Vision » treatment of the company Zeiss and developed by Professor Dan Reinstein in London.\nThis method applies mainly to all wearers of eyeglasses who have become presbyopic: hypermyopic, myopic, astigmatic. It can also work for persons not wearing glasses and who have good distant vision in both eyes (in this case the situation is more delicate and tests conducted in the Clinic can enable us to determine if the operation is feasible).\nThe « Presbyond Laser Blended Vision » treatment consists in privileging one eye for distant vision and the other for near vision. The specific nature of this treatment is that it allows good intermediary vision for e.g. the computer screen that is normally placed at a distance of 50-60 cm. You can consult a document edited by Zeiss and available in English.\nBefore proposing such a treatment, tests are carried out in our Clinic to ensure that you can accept your new eyesight (80% of patients « pass » the test and can be operated). In general, this treatment is well tolerated since our visual system is highly adjustable and adapts easily to new visual conditions.\nHowever, if you do not tolerate your correction for presbyopia, it is possible to reverse the condition and correct both eyes solely for distant vision. This is one of the advantages of the « Laser Blended Vision » treatment.\nIf you suffer from cataract, the operation consists in removing your crystalline lens, which has turned opaque and replacing it with an artificial crystalline lens. The « classic » implant allows you to see distant objects without your glasses, but you would need them for close vision. For patients wishing to do away with their glasses, there are « bifocal » implants which allow patients to see near and distant objects without glasses.\nIt is also possible to operate using the bifocal implant technique for patients who do not have cataract. In this case, French social security does not cover the operation and the entire cost has to be borne by the patient.","domain":"optical_engineering"}
{"url":"http://www.cms-led.co.uk/content/myths-about-led-lighting--299.htm","date":"2020-11-28T08:06:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195198.31/warc/CC-MAIN-20201128070431-20201128100431-00401.warc.gz","language_score":0.9225072264671326,"token_count":1886,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__33005678","lang":"en","text":"CMS LED Solutions\nStipers Hill Farm\nKisses Barn Lane\nMyths About LED Lighting\nMyth number 1: LEDs last forever\nLike all light sources, LED sources slowly fade over time. This light output degradation, or lumen depreciation, is determined by testing LED sources over a period of 6,000 hours or more. Factors that can cause lumen depreciation include drive current and heat generated within the device itself.\nLumen maintenance describes how long a lighting fixture retains a certain percentage of its initial light output. White light sources used for general illumination are commonly considered to be at the end of their useful life when their light output falls below 70% of initial output. For white and coloured accent and non-task lighting, the lumen maintenance threshold is often considered to be 50%.\nWell-designed LED lighting fixtures can retain 70% of their initial output for 50,000 hours or more, depending on operating conditions and other factors. At 24 hours per day of continuous use, such fixtures can deliver useful light for six years or longer — many times as long as incandescent sources, and up to twice as long as long-life fluorescent sources.\nMyth number 2: LEDs are not bright enough\nIf you compare the raw lumen output of conventional lamps with the lumen output of many LED lighting fixtures, it often seems that LED fixtures deliver less light than the conventional alternatives. Such comparisons, however, are inaccurate and misleading, as they fail to account for the significant amount of wasted light in conventional lighting solutions.\nSimply put, lumen output is a poor measure of the suitability of a lighting fixture for a given task. A better measure is delivered light — how much light a fixture delivers to a surface or area, as measured in lux (lx) or footcandles (fc). You can make accurate comparisons between conventional and LED lighting fixtures on the basis of delivered light, as it measures how much of a light source’s raw lumen output reaches a surface or area you want to illuminate.\nTo determine how much of a conventional lamp’s raw lumen output reaches a task area, you must discount any light lost in the fixture housing (often over 30%), as well as any light lost as a result of lensing, shading, and filtering. Since incandescent and fluorescent lamps emit light in all directions, you must further discount any light emitted in a direction away from the target area.\nLED lighting fixtures are integrated systems in which the light sources (LEDs), the fixture housing, and the primary optics are inseparable. Lumen measurements of LED lighting fixtures, therefore, are performed on the entire system, and already account for light lost to the fixture housing and lensing. Furthermore, since LEDs are inherently directional, they emit almost all of their light output in the desired direction, rather than dispersing it in all directions. And since LEDs natively produce intensely saturated coloured light, they require no gels or filters which can block a significant percentage of a fixture’s light output (over 90% for certain shades of deep blue).\nWhen comparing lighting fixtures on the basis of delivered light, LED fixtures often perform as well, and in some cases significantly better, than conventional fixtures, while consuming far less energy.\nMyth number 3: White-light LED sources produce over 160 lumens per watt\nMany manufacturers test their LED chips on lab benches at room temperature with short pulses that produce a high efficacy that cannot be achieved in practical use. While these results are not incorrect, they do not reflect the typical expected output of LED sources integrated into lighting fixtures. Although percentages vary, it is not uncommon to see efficacy losses of up to 40%.\nReputable LED fixture manufacturers do not base lumen measurements on the test results of their LED source suppliers. Instead, they use independent, third-party testing labs to measure and validate the output of their lighting fixtures according to test conditions spelled out in the LM-79 standard, published in 2008 by the Illuminating Engineering Society of North America (IES).\nSome highly efficient white-light LED lighting fixtures can achieve efficacy of over 40 lumens per watt (lm / W), sufficient to earn ENERGY STAR and other energy-efficiency ratings. For example, linear LED cove lights from a leading manufacturer achieve efficacies of 43.9 to 53.1 lm / W in normal operating conditions.\nMyth number 4: Three-watt LEDs are brighter than one-watt LEDs\nBecause of incandescent light bulbs, you’re probably used to looking at wattage to determine the light output of a light source: a 100-watt lamp puts out more light than a 60-watt lamp.\nThe fact is that incandescent lamps have a very low efficacy compared with CFLs, high-output fluorescent lamps, and LED light sources. All general service incandescent lamps use the same filament material heated to the same temperature, the only way to increase their light output is to increase the wattage. This is one of the main reasons why incandescent lamps are so energy wasteful.\nLED sources are much more efficient at converting watts to lumens. Different materials can be used within the LED sources themselves, each of which has its own light extraction efficacy. For these and other reasons, two different LED sources can consume the same number of watts but differ widely in lumen output.\nBecause watts can’t be used as an index of light output, evaluating the “brightness” of LED sources for a given situation requires you to think differently about lighting. A standard 60-watt incandescent lamp emits a total of about 800 lumens, but the light is emitted equally in all directions. When you’re reading at your office desk, your book does not receive all 800 lumens from your desktop lamp, nor do you need it to. As described in Myth #2, the crucial measurement is delivered light. According to the IES, serious reading requires an average of 50 fc or 500 lx on the page. Many linear LED under-cabinet fixtures and other task lights can deliver this level of light while consuming far less than 60 watts. For example, an under-cabinet LED light from a leading supplier delivers 50 fc in typical desktop situations while consuming only about 6 watts per foot.\nMyth number 5: LEDs generate no heat\nBecause they produce no infrared energy, the beam of light from an LED source is cool. However, waste heat is produced within the LED itself during the conversion of electricity into light. This waste heat must be properly removed from the lighting system to maximize fixture performance and to avoid damage to the LEDs. In well-designed LED lighting fixtures, heat removal is accomplished through carefully designed and engineered heat sinks that draw heat away from the LEDs and dissipate it into the air surrounding the fixture housing.\nMyth number 6: LED systems cost too much\nInitial fixture costs may be higher for some LED lighting solutions than for comparable incandescent and fluorescent lighting solutions. But initial fixture cost does not account for the total cost of owning, operating, and maintaining a lighting system. Because of their long useful life, LED lighting fixtures avoid the maintenance and materials costs which multiple relampings of incandescent fixtures require over tens of thousands of hours of operation. And because LEDs consume far less energy, annual power costs can be reduced by up to 80%.. The total cost of LED lighting systems, therefore, can be significantly lower than conventional systems. In fact, payback on LED lighting solutions can often be realized in less than three years.\nMyth number 7: LED light quality is poor\nTwo important measurements of white light quality are correlated colour temperature (CCT) and colour rendering index (CRI).\nCCT describes whether white light appears warm (reddish), neutral, or cool (bluish). The standard definitions of CCT allow a range of variation in colour that can be readily discerned by viewers even when the CCT value is the same. Ensuring colour consistency, therefore, is a major concern of LED manufacturers. Leading LED lighting manufacturers use various LED selection schemes (binning) to ensure colour consistency from fixture to fixture.\nOn a scale of 0 (worst) to 100 (best), CRI measures the ability of a light source to reproduce the colours of objects faithfully in reference to an ideal light source — the sun, for example, or an incandescent lamp. Most office, retail, educational, medical, and residential spaces require a minimum CRI of 70 – 90. Many white-light LED lighting fixtures available today achieve CRIs of 80 or better, comparable to many CFL lamps, quartz metal halide lamps, and some cool white fluorescent fixtures sufficient for the vast majority of applications.\nBecause of well-known shortcomings of the standard CRI test for LED lighting, some LED lighting fixtures with low CRI scores produce visually pleasing light that renders colours appropriately. Colour Quality Scale (CQS), a colour-rendering standard that better accounts for the unique properties of LED light sources, is currently under development. Until CQS or a similar alternative is in place, you should observe LED sources with low CRI scores in person to evaluate how well they render colour.","domain":"optical_engineering"}
{"url":"http://www.overdrive-lighting.com/led-linear-highbay-light.html","date":"2021-12-05T04:06:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363135.71/warc/CC-MAIN-20211205035505-20211205065505-00141.warc.gz","language_score":0.7364055514335632,"token_count":478,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__152024508","lang":"en","text":"Linear High Bays\nOverdrive LED Linear High Bay fixtures series are DLC Listed & ideal for one-to-one replacement for conventional HID, T8 and T5 fluorescent in locations with scalability for high ceiling applications 15' to 40' ceiling such as warehouse, factory, Convention Centre, Retail, Showroom & Storage Lighting etc.\nOverdrive High bay fixture offers 50,000 hours life and substantially reduces maintenance costs and is available with high lumen outputs from 13000 to 39000 lumens. Benefits include high efficiency, long life, excellent color rendering, instant on and improved uniformity for warehouses, assembly, gymnasiums and dock areas.\n- Suitable for damp location\n- Good thermal management\n- Superior Photometric Performance\n- 0-10V Dimming function, Dimming range 10-100%\n- Reliable driver offers longer lifetime up to 50,000 hours\n- Excellent light distribution and Lumen output\n- 5 Years Limited warranty\n- Easy to install\nPRODUCT DETAILS - DIMMABLE\n|IMAGE||ITEM NO||MODEL NO||Input Voltage (V)||Wattage (W)||Lumen (lm)||Efficacy (lm/W)||CCT||CRI||Power Factor||Case Qty||SAFETY||PERFORMANCE|","domain":"optical_engineering"}
{"url":"http://geethaeyehospital.com/services/","date":"2023-06-07T03:08:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653501.53/warc/CC-MAIN-20230607010703-20230607040703-00521.warc.gz","language_score":0.8968440890312195,"token_count":2563,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__151224774","lang":"en","text":"Geetha Eye Hospital – Best Eye Care Hospital in Udumalpet\nGeetha Eye hospital has always maintained pace with advancements in medical technology to offer patients the utmost best in eye-care. We strive to keep up with cutting-edge ophthalmic innovation and technology, with continuous investment in state-of-the-art diagnostic and surgical equipment.\nOur surgical tools include top-notch equipment like amo sovereign compact system – the latest generation of phacoemulsification machine.\nThis machines can be used for the latest Micro-Coaxial Cataract Surgery(MICS), or removal of the cataract through a 2mm (or less) incision with the implantation of foldable intraocular lenses (IOLs). We offer patients the latest in IOL technology including the accommodative Crystalens HD, the ReSTOR & TECNIS Multifocal IOLs and the astigmatism correcting Toric IOLs. Geetha eye hospital also provides the latest generation of multifocal IOLs with Astigmatism Correction To minimize calculation errors in the implanted IOLs, the hospital houses the a scan Biometry, which is most accurate technology to date.\nCataracts are clouding of the Natural lens in the eye, which can cause blurry vision and may lead to blindness. Though Cataract Surgery is not a painful condition. In many cases, cataracts are considered to be just another case of a small nuisance that requires only a short course of treatment by an Eye Doctor. However, in some cases, the problem may become more serious and require surgery to remove the cataract and restore normal sight.\nCauses of Cataracts:\nDue to Aging\nPrevious or untreated Eye Injury\nHigh Blood Pressure\nDiabetes & Smoking\nRadiation Exposure – (Ionizing Radiation e.g., X-rays and Gamma Rays, Metal Working, Welding, Plastics Manufacturing involving Laser bonding)\nLonger exposure to Sunlight\nSymptoms associated with Cataract:\n- Gradual loss of Vision\n- Double vision\n- Need for Brighter light – for reading books\n- Frequent Rx change of Glasses.\n- Difficulty in Driving –compromised safety\n- Unable to see in the dark times due to blurry & Zero vision\nCataract Treatment & When it’s required:\nCataract Treatment can be started at any time once you are unable to perform your day to day activities.\nWe are the Top Cataract Surgery Hospital in Udumalpet, India. We are using Most Advanced Imported Equipment for Cataract Surgery at an Affordable Cost. We are Super Specialized Cataract Surgeons with Best Equipped Hospital Infrastructure.\nCataract operation can be performed in a safe and effective manner even in the early stages and one need not wait for the cataract to mature.\nSurgical Options offered at Geetha Eye Hospital:\nCataract Surgery Procedure:\nPHACOEMULSIFICATION – MICS\nSmaller incision about 2mm.\nFoldable lens is implanted without extension of wound\nPainless, Bloodless & Stitch less Surgery\nOnly 1 Hour Procedure\nFewer Post Op Visits – Faster wound healing\nModern Cataract Surgery\nIOL OPTIONS – FOR YOUR LIFESTYLE REQUIREMENT:\nWe at Geetha Eye Hospital offers wide range of Intra Ocular Lenses based on your Lifestyle requirement, which help you to live with ease.\nThe Monofocal IOL have the capability of focusing light from a single distance. Normally distant objects are clear and one requires glasses for reading. The Monofocal lenses are either rigid non foldable or foldable.\nToric IOLs have the ability to correct the eye power both at the corneal and lenticular plane, thereby correcting the cylindrical power.\nMultifocal lenses have different segments which focus light rays from various distances onto the retina. This affords correction for near, intermediate and distant vision to the patient.\nPatient can perform his daily activities without Glasses.\nPhaco Machines @ your Glance:\nYour Eyes are so special , Your cataract surgery deserves the Best surgeon & the Best Machine In addition to the best surgeon & latest state of Art technology, Legion Phaco system first of its kind is installed in the town of Udumalpet & Palani.\n- Advanced Performance from the best value Phaco Platform brings more trustable outcomes for your patients.\n- Patented OZIL Technology delivers reduced Heat during surgery helps in prevention of Thermal injury & tissue damage.\n- Imported from USA & USFDA approved Phaco machine for Cataract surgery,\n- Legion Phaco system offers higher cutting efficiency to perform surgery in less time & Faster wound healing.\n- Legion Phaco System is designed to maintain Predictable IOP\n- Thermal safety, decreased Fluid usage for improved corneal health & reduced inflammation\n- Reduced Heat delivery enhances Patient outcomes & Protection\n- Faster Rehabilitation & speedy recovery\n- Best Treatment options for Diabetic & Hypertensive patients.\nContact lens enhance the vision of the wearer by reducing spectacle aberrations and increasing the visual field, thus giving a natural vision. At Geetha eye hospital trained optometrists begin with a comprehensive eye examination to help you get the best fit, and also teach you how to use and maintain\nThe contact lenses available are :\nSoft contact lenses.\nStandard Contact lenses:\nAvailable as spherical lenses and toric lenses which can be used every day for about 8 hours and should be replaced every year.\nDisposable contact lenses\nThese latest generation lenses are available as spherical and toric contact lenses which can be disposed as either quarterly, monthly, fortnightly, weekly or on a daily basis.\nCosmetic contact lenses:\nAs the name suggests, these lenses are worn to enhance cosmetic appearance by changing the eye color.\nSemi-soft contact lenses:\nWhen a person is intolerant to soft contact lenses due to allergy or under correction of high astigmatism, he will be advised to wear semi-soft contact lenses. These lenses are specially designed to match the patient’s corneal contour thereby resulting in a shaper and clearer vision.\nThe optic nerve carries information from the eye to the brain, and is located in the back of the eye. Glaucoma is the name given to a group of eye diseases that damage the optic nerve. It is characterized by progressive damage to the optic nerve of the eye, the most common cause being increased pressure in the eye. In fact glaucoma is the leading cause of irreversible blindness worldwide. At first, patients lose side (peripheral) vision. But if the disease is not treated, vision loss may worsen, leading to total blindness over time.\nThe most common forms of Glaucoma are:\n1. Open angle glaucoma\n2. Angle closure glaucoma\nThe treatment depends on accurate and early detection and success depends on severity of the disease at presentation. Glaucoma patients don’t experience any symptoms and are unaware of vision loss until severe damage has occurred. On rare occasions, acute rise in eye pressure occurs and needs immediate medical attention. Glaucoma can be treated as well as controlled but cannot be completely cured. However if left untreated, it can lead to permanent blindness. Most forms of this illness are progressive and need long term care. At Geetha eye hospital, we provide the latest tools for the diagnosis of glaucoma. We are equipped with the latest lasers and machinery used for the surgical management of glaucoma.\nRETINA AND VITREOUS :\nGeetha eye hospital offers comprehensive services for diagnosing and treating various retinal disorders. Our retinal specialist makes use of the latest equipment to detect retinal conditions such as Di2betic retinopathy and Age related macular degeneration amongst others. At Geetha eye hospital, we realize that ophthalmology is increasingly becoming an equipment-based practice. Good results not only depend on excellent surgical skills but also on the capabilities of the instruments and machines used, which is why we continue to invest in the latest that technology has to offer.\na) Diagnostic procedure\n1. Fundus Photography – Allows doctors to procure color photographs of the back of the eye.\n2. Fluorescein Angiography (FFA) – This is a diagnostic procedure that photographs blood circulation of the retina. The process involves injection of a dye called Fluorescein into a vein in the arm or hand.\n3. Visual Field Analysis – This procedure allows measurement of the full extent of the area visible to an eye that is fixating straight ahead.\nb) Surgical procedures\nIntravitreal injections have brought forth a new era in the treatment of Age related macular degeneration , Diabetic maculopathy and other retinal vascular disorders. Injections of Lucentis(Ranibizumab), Avastin (Bevacizumab),Macugen( Pegaptinib Sodium)and Ozurdex(Steroid implant) are given as an outpatient procedure.\nMicro incision and sutureless (23/25 gauge) vitrectomy(MIVS) is performed. The advantages of this surgery is the absence of stitches in the eye; hence the post-operative recovery is faster. The surgeries performed under the care of Geetha eye hospital include\nScleral Buckling – Vitrectomy for retinal detachments, epiretinal membrane, macular hole,vitreomacular traction, vitreous hemorrhage, parasitic cysts, dislocated nucleus, dislocated intra ocular lens – Vitrectomy for diabetic retinal detachment – Scleral fixated IOLs\nc) Retinal Lasers\nOur retinal service includes Laser photocoagulation for various retinal disorders including diabetic retinopathy. Lasers are performed under topical(eyedrop) anaesthesia and are performed as an outpatient procedure.\nCORNEA & REFRACTIVE\nGeetha eye hospital also offers early diagonal and treatment modality for keratoconus which stops progressive weakening of the cornea which occurs in this particular disorder.\nA pterygium Is a fleshy growth which grows from the white of the eye (conjunctiva) and starts encroaching onto the cornea, These are commonly seen in tropical countries with increased sun exposure , such as India. At Geetha eye hospital , we perform pterygium removal surgeries and overlay the bare sclera with a graft to prevent recurrences. These grafts are held in place with a biological glue or sutures.\nThe facilities at the pharmacy include : All commonly used drugs to meet the demand (only renowned manufacteven). Fully computerized transactions. Appropriate drug pricing.\nThe facilities at the opticals include : All commonly used spectacles, contact lenses and frames. Fully computerized transactions. Appropriate pricing.\nPAEDIATRIC OPHTHALMOLOGY AND SQUINT\nGeetha eye hospital offers treatment for a wide range of paediatric eye problems. We provide services for sight-threatening conditions such as:\n1. Pediatric Glaucoma\n3. Congenital Opacities of the Cornea\n4. Trauma in children\nWe are also well adept in:\n1. the management of squint, double vision and other disorders of eye alignment and movement, both in children and adults.\n2. the management of Amblyopia (or lazy eyes).\n3. refraction in young children.\n4. general eye problems such as eye sore, allergic conjunctivitis and lumps on the eyelids (stye and chalazion).\n5. the screening of premature babies for Retinopathy of prematurity (ROP) and its management by Laser or surgery","domain":"optical_engineering"}
{"url":"https://polyfab.com.au/faqs/","date":"2024-02-27T13:19:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474676.26/warc/CC-MAIN-20240227121318-20240227151318-00759.warc.gz","language_score":0.9430773854255676,"token_count":487,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__18730302","lang":"en","text":"01. What is the relationship between light transmission and shade cloth?\nTo answer this question it is easiest if we go back to basics with the fundamentals of light.\nLight is part of the electromagnetic spectrum and this is measured in wavelengths using a nanometre (nm) or 1 billionth of a metre. The general rule is the shorter the wavelength the more energy.\nHumans can see visible light which is between 400 nm and ~730 nm. We cannot see UV (ultraviolet) light which is between 290 nm and 400 nm.\nThe solar transmission through shade cloth is significantly reduced across all wavelengths and is dependent on colour. All colours reduce UV transmission, which is the cause of sunburn and skin cancer, by at least 90% and up to 95%. This is measured by UVR block. Heat or infrared is also significantly reduced, particularly by the dark colours which reduce the heat transmission by up to 90%. Shade cloth provides excellent protection against the harsh effects of the sun.\n02. What is a UV block and how is it determined?\nPolyfab shade cloth has been designed to block out UV (ultraviolet) light to varying degrees depending on the range.\nTo determine the UV block out amount, a test is required by the Australian Standard AS4174 – Synthetic Shade Cloth. This test measures the amount of UV light (290 nm – 400 nm) that is blocked by the shade cloth. This is either via reflection or absorption.\nUV block is the inverse of UV transmission e.g. 95% UV block = 5% UV transmission.\n03. What is cover factor?\nTo determine the cover factor of a shade cloth a test is required by the Australian Standard AS4174 – Synthetic Shade Cloth.\nThis test determines the percentage area of the fabric covered by the yarns and fibre of the cloth. It is affected by the density of the yarn, profile and type of weave. Please Note: it is not affected by the weight of the fabric.\n04. What is shade factor?\nTo determine the shade factor of a shade cloth a test is required by the Australian Standard AS4174 – Synthetic Shade Cloth.\nThis test defines the amount of visible and invisible incident light that is blocked by a shade cloth.\nShade factor is the inverse of average transmission e.g. 70% average transmission = 30% shade factor.","domain":"optical_engineering"}
{"url":"http://www.techobook.com/invisible-technology/","date":"2018-01-21T23:59:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084890928.82/warc/CC-MAIN-20180121234728-20180122014728-00033.warc.gz","language_score":0.9589185118675232,"token_count":342,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__224086657","lang":"en","text":"It was one something that belongs only to science fiction, but now Japanese researchers have created invisible technology that’s the first step towards making objects invisible. The invisible technology comes from 2003 but its developers say that the Harry Potter like invisibility cloak is just the beginning.\nThe team led by doctor Susumu tachi from Keio University is now adapting its findings to help pilots, drivers, doctors and others. Retro reflective projection technology uses a computer, a video camera and projector to shine background images onto the front to the subject wearing specialized clothing creating the illusion invisibility.\nWhat makes the invisible technology unique is a fabric made of glass beads only 50 microns wide, which can reflect light directly back at the source much like a movie screen. Viewed from near the light source the projection is bright even in broad daylight and researchers say the material can be applied to almost anything. In the short term the team sees usage in car interiors, airplanes and helicopters they say blind spots could be eliminated and accidents and hard landings avoided by making walls seemingly transparent. The eventual goal though is to create an augmented reality that allows anyone to easily see information on real-world objects.\nLooking to the future instead of glasses people could wear this, and it would act as a navigation system you could also tell you who someone is if you meet them around town. In the few years since the technologies invention the price if the material as well as that of computing has come down opening the door for smaller yet more powerful applications. With the use to increase safety or to create a completely new form of computer human interaction, the world is likely to see or possibly not see more of this camouflage technology in the future.","domain":"optical_engineering"}
{"url":"http://eyesbybrenner.com/services/laser-vision-correction/intralase-fs-laser/","date":"2020-04-04T11:39:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370521876.48/warc/CC-MAIN-20200404103932-20200404133932-00033.warc.gz","language_score":0.8841078877449036,"token_count":456,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__123412565","lang":"en","text":"IntraLase™ FS Laser\nThe Eye Clinic of Racine offers Wisconsin’s most advanced technology\nThe IntraLase™ FS Laser brings a new level of safety and assurance to vision correction surgery in Racine and Kenosha by providing an all-laser approach for optimal precision. Now, the accuracy of a computer-controlled laser may be used to create the corneal flap for LASIK, providing unprecedented control and the ability to customize the flap for each of our patients.\nTraditionally, the creation of a corneal flap was performed with a mechanical, hand-held device (known as a microkeratome) which moved across the cornea to cut the flap.\nThe IntraLase FS laser is a safe, computer-controlled alternative to a mechanical microkeratome for creating corneal flaps in the LASIK procedure. Using the IntraLase FS Laser takes LASIK safety to the next level by significantly reducing the chance of rare complications.\nTo make the corneal flap, the laser beam is focused into a tiny spot of energy that passes harmlessly through the outer layers of the cornea until reaching its exact focal point within the central layer of the cornea. There the corneal flap procedure is initiated, silently and painlessly, with remarkable precision.\nWhy The Eye Clinic of Racine uses the IntraLase™ FS Laser:\n- IntraLASIK provides our patients with an extra margin of safety.\n- IntraLASIK allows us to perform LASIK on patients with thin corneas because we can make a precise, more shallow flap, which allows us to correct higher levels of refractive error.\n- IntraLASIK makes laser vision correction an all laser procedure, which significantly adds to its precision and predictability.\n- IntraLASIK also creates better fitting flaps. Once put back in place, these flaps form a tight seal, making flap dislocation after the procedure more difficult.\n*IntraLASIK proprietary software is offered exclusively by IntraLase Corp. IntraLase and IntraLASIK are trademarks of IntraLase Corp.","domain":"optical_engineering"}
{"url":"http://liputannows.com/research-3d-reconstructions/","date":"2018-06-19T19:52:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863119.34/warc/CC-MAIN-20180619193031-20180619213031-00283.warc.gz","language_score":0.8907263875007629,"token_count":1602,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__68216484","lang":"en","text":"In the science of image processing, two-dimensional (2D) object becomes raw material that\ncan be processed into another form to get the desired information. Within its development, the image processing refers to three-dimensional (3D) images which have more angles than the 2D object, so that we could get more information from the object.\nVarious methods for reconstructing 3D objects have been done by various researchers. Reconstructing 3D objects from multiple images is done by combining some calibrated 2D images (Kolev, Brox, & Cremers, 2012). The use of the Voxel Hashing algorithm is to reconstruct 3D objects to achieve good quality results with scale (Matthias Nießner, 2013). The use of Voxel Hashing improves the effective 3D point-based method used to reconstruct thin objects (Ummenhofer & Brox, 2013).\nReconstructing 3D objects in real time becomes an option when being implemented into game-based models and survival activities that require 3D viewable objects. The use of depth vision cameras like Kinect Fusion for taking human objects in 3D has a limited area (R. Newcombe, 2011). The development of kinect camera in its utilization is within the field of\nIn the event of surveillance undertaken, underwater observations become different things because the objects in the sea have uniqueness in every inch of them. Therefore an observation in the sea is needed by showing the whole object in 3D. Problems arise because during the formation of objects into 3D form there are differences in terms of lighting conditions, the determination of the edge of the object, the distance between the object and camera surveillance, as well as the existence of irregular noise around the object to be reconstructed.\nThis research is conducted to determine the application of which method that is suitable for taking underwater objects and reconstructing objects in 3D. Reconstruction will be done by taking multiple images in 2D form, shooting will be done by ROV (Remote Operated Vehicle), and ROV will be equipped with sensors and actuators that set the accuracy of each distance.\nIn the reconstruction of 3D objects, several studies have been done. Initial methods such as\nthe use of laser light mixed with the use of the camera with relative position and scene measurement projected to an object to obtain the shape of objects to be reconstructed into 3D images (Dipanda, 2005). The use of low-resolution cameras to reconstruct a surface image of an object was performed without the use of a laser beam. The method was done by detecting the grid segment, then reconstructing the surface image of an object (Dvorak, 2010). On the other hand Kinect cameras manufactured by Microsoft have been developed. By using Kinect\nFusion, then the kinect camera would be able to quickly reconstruct objects captured in 3D, with the provision of objects being indoors (Izad, 2010).\nResearch 3D reconstructions\nVarious approaches used to maximize reconstruction are limited by the camera’s ability to capture images. The determination of point-based on reconstructing 3D objects into a fairly large selection, point-based can also be used to reconstruct thin objects (Ummenhofer & Brox, 2013), merging of multiple images to be reconstructed into 3D objects using Direct Linear Triangulation (DLT ) that allows reconstruction from simple cameras (Rachmawati,\n2013). Differential scaling on multiple images is a problem for the DLT algorithm. Another way is to compress the scale using spatial hashing scheme or Voxel Hashing (Nießner, 2013). To create faster and real-time reconstruction, images are taken from the video by dividing the image into segments, then checking the image connectivity of each segment using the connectivity constraint coupled with spatio-temporal multi-view reconstruction which is useful to reconstruct 3D objects in real time (Oswald, 2014). The retrieval of objects by Martin and Oswald creates a more detailed picture of previous engineering techniques, but the focus on the object will be much disturbed by the ever-changing noise due to real time shots. Backgrounds such as floors, walls, and other objects will give a large noise to the object. Signed Distance Fields (SDFs) technique will separate the object from the floor as well as the surface of the wall, so that the objects will be easier to reconstruct (Dzitsiuk,\n2017). Techniques used to obtain objects are by reducing effective noise in the room because the surface of the wall and the surface of the floor have the same segmentation. However, if the surface is dynamic and has a different structure such as the seabed or even rocks, the object reconstruction will be more difficult to do because the object will be biased with other objects.\nResearch 3D reconstructions\n3D reconstruction is also a research area that is being developed in the world of robotics. 3D simultaneous localization and mapping (SLAM) technique is very actively used because the robot poses determination and geometry planning needs fast and accurate estimates. 3D reconstruction is a requirement because of the task of robotics in localization, navigation, and exploration (Bylow, 2013). In addition to use in the world of robotics, 3D reconstruction is also used for survival purposes.\nResearch 3D reconstructions\nThe research conducted by Xu Yongzhe in 2015 using multi-camera to reconstruct the ground surface into 3D coordinates. The system will detect floors, walls, or buildings. This can improve the tracking system of moving objects. This technique uses 3D reconstruction SFM (structure from motion) which reconstructs 3D geometric from a set of 2D images captured in real time (Xu Yongzhe, 2015).\nBylow, Erik, J. S. (2013). Real-Time Camera Tracking and 3D Reconstruction Using Signed\nDistance Functions. Robotics: Science and Systems IX.\nDipanda, A. S. W. (2005). Towards a real-time 3D shape reconstruction using a structured light system. Pattern Recognition.\nDzitsiuk,Maksym, J. S. (2017). De-noising, Stabilizing and Completing 3D Reconstructions\nOn-the-go using Plane Priors. Arxiv.\nDvorak,Radim, M. D. (2010). Object Surface Reconstruction from One Camera System . Izad, Shahram e. a. (2010). KinectFusion: Real-time 3D Reconstruction and Interaction\nUsing a Moving Depth Camera.\nKolev, K., Brox, T., & Cremers, a. D. (2012). Fast Joint Estimation of Silhouettes and Dense\n3D Geometry from Multiple Images. EEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INT, 1-13.\nOswald, Martin R. J. S. (2014). Generalized Connectivity Constraints for Spatio-temporal 3D Reconstruction. Germany.\nNewcombe,R. A. D. (2011). KinectFusion:Real-time dense surface mapping and tracking.\nNießner,Matthias, M. Z. (2013). Real-time 3D Reconstruction at Scale using Voxel Hashing.\nACM Transactions Graphics (TOG), vol. 32, no. 6.\nRachmawati. (2013). 3D Object Recontruction from Multiple Images. JNTETI. Ummenhofer, B., & Brox, T. (2013). Point-Based 3D Reconstruction of Thin Objects. Yongzhe,Xu B. L. (2015). Multi Camera for Surveillance System Ground Detection and 3D\nReconstruction. International Journal of Smart Home, 103-110.","domain":"optical_engineering"}
{"url":"http://zrcourseworkmtib.getfiredband.us/properties-of-light.html","date":"2018-08-16T18:03:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221211146.17/warc/CC-MAIN-20180816171947-20180816191947-00312.warc.gz","language_score":0.9302582144737244,"token_count":580,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__206947603","lang":"en","text":"Basic electromagnetic wave properties the wavelength of light, and all other forms of electromagnetic radiation, is related to the frequency by a relatively. Answerscom ® is making the world better one answer at a time some properties are: â ¢ light travels in straight lines â ¢ light can be reflected â ¢ light can be bent â ¢ light is a form of energy light does travel in straight lines at the level of classicalphysics in true.\nHigh school chemistry/the dual nature of light from wikibooks, open books for an open world obviously, this proved that light had some very wave-like properties. In this lesson, you'll learn how light is created you'll also learn about the different properties of light by exploring how it behaves with. What you need to know about light as photographers we use light all the time recording light is our way of capturing the world every single photograph is the result of a capture of some state of visible light.\nThis problem set tests students understanding of the properties of light, including velocity, frequency, reflection, and refraction. After yangshuo county, my brother chad and i boarded a plane and flew west and north to the city of chengdu, where our cousin and his family live. Light is a medium of energy through which we perceive and interact with our environment it is the visible frequency range of electromagnetic radiation which also includes invisible forms of electromagnetic radiation such as ultraviolet, infrared, and radio waves like all electromagnetic radiation. Physics including human applications chapter 19- wave properties of light 416 193 interference as we pointed out in our discussion of traveling waves, the superposition principle.\nTest and improve your knowledge of properties of light with fun multiple choice exams you can take online with studycom. Properties of light what happens to the light depends on the material transparent (clear) materials- transmit light translucent (see through) materials- scatters the transmitted light. Lightintheboxcom will help you search for properties of light, guaranteeing you'll find the best price out there so, what are you waiting for save big on shipping, and see more similar products available at great prices for amazing value.\nLight photons 3 these three are the same light pure energy electromagnetic waves energy-carrying waves emitted by vibrating electrons photons particles of light. Light is a very important energy source that helps keep us warm and lets us see the world light travels in waves through bundles of energy called photons.\nProperties of light learn with flashcards, games, and more — for free. Physical properties of light light consists of photons — “particles” with no mass which travelatthespeedoflight theyhaveenergy,andonemeasure. The electromagnetic spectrum is composed of wavelengths of light between 10^-16 to 10^8 meters the majority of this electromagnetic spectrum is invisible to the human eye.Download","domain":"optical_engineering"}
{"url":"https://eam.org.ua/ENcompetence-sapphire.html","date":"2022-09-27T13:48:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335034.61/warc/CC-MAIN-20220927131111-20220927161111-00232.warc.gz","language_score":0.8166351914405823,"token_count":204,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__231104483","lang":"en","text":"We offer sapphire crystals in the following sizes\n- thickness from 0.5 mm to 8 mm;\n- width from 10 mm to 80 mm;\n-length up to 355 mm;\n- available orientation of sapphire windows in the C plane;\n- thickness tolerance: +/- 0.02 mm;\n- tolerance of the sizes: +/- 0,05 mm;\nDifferent configurations of Sapphire windows\n- square sapphire windows;\n- Circle Sapphire windows (classic example: watch glass);\n- rectangular sapphire window (chamfered);\n- any other form at the request of the customer.\nSapphire windows - A unique set of properties!\nSapphire is much stronger and more resistant to scratches than any glass, including high-strength Gorilla Glass. In addition, sapphire protects against high temperatures, radiation, ultraviolet radiation, chemical resistance and neutrality, transparent even at 2000 ° C and does not lose its properties over time.","domain":"optical_engineering"}
{"url":"http://icjl.info/the-10-best-resources-for-scopes.html","date":"2018-08-14T20:05:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221209562.5/warc/CC-MAIN-20180814185903-20180814205903-00455.warc.gz","language_score":0.9502002000808716,"token_count":496,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__147972630","lang":"en","text":"Weapons are useful by themselves, but there is some additional gear that weapon users attach to their weapons so that they can facilitate efficient operations in the activity that they are undertaking. The most significant aim of these firearm optics is to enhance the visibility of the person using the weapon to land the desired target. There are others to consider in different classifications like binoculars, monocular or spotting glasses. Nonetheless, weapon mounted optics add to your fervour and shot precision. When looking for gun optics, you should first comprehend the principle motivation behind utilising your weapon and the movement you wish to take part in. For instance, if you are not aiming at far away targets then you will not need optics that concentrate on far away items. Some undertakings require a laser. The laser itself is undetectable to the bare eye, yet shows up on the objective clearly.\nIf you are a sniper who enjoys shooting things from long ranges, then you would prefer purchasing something that can achieve high zooming capabilities and still present a clear image. Such apparatus can even present you a target clearly which is roughly a thousand yards away. As long as you know how to work the optic that you are using, you are in the ideal position of playing out all that you want. There are different types of weapon optics depending on the activity that you are going to undertake. From a standard optical scope to a laser scope to range locater blend, decisions should be made. Ask yourself the necessary questions to discover the type of optics that you require in your activity. Laser optics for hunting are more up to date on the market and are easily available. Most of them possess LED reticle that is conveyed on a viewfinder. The reticle can be changed to any of a few sorts relying upon the model you are taking a gander at.\nFor longer range hunting, laser optics take a jump to holographic optics. They use a laser column to wander out a crosshair towards the objective you are occupied with. Once located, this kind of optics for hunting is a standout amongst the most exact accessible. They are ideal for somebody intrigued by shooting in scopes of around one hundred and fifty yards, however, don’t offer the client some amplification. Weapon optics are extra contraptions that are appended to the weapon for expanded usefulness. They improve operations in various capacities. You can even attain an accuracy of up to a thousand yards highly dependent on the weapon that you are utilising.","domain":"optical_engineering"}
{"url":"http://www.systemsx.ch/de/projekte/interdisciplinary-phd-projects/aktuelle-iphd-projekte/iphd-projekte-details/?tx_x4epersdb_view%5Bperson%5D=65&tx_x4epersdb_view%5Baction%5D=show&tx_x4epersdb_view%5Bcontroller%5D=Person&cHash=9caa4b5bef46deb797fe4986c8e30e2b","date":"2018-12-15T07:05:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826800.31/warc/CC-MAIN-20181215061532-20181215083532-00524.warc.gz","language_score":0.8695894479751587,"token_count":198,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__195217081","lang":"en","text":"Microelectronics and Genetics to Study Retinal Neuronal Circuit Dynamics\nThe mammalian retina represent a unique opportunity to study the dynamic computations performed by the brain and it has a 2D layered structure that is ideal to be analyzed by MEA technology. The mammalian retina contains complex circuits extracting specific features from visual input (decrease or increase in light intensity, color, moving objects).\nMicroelectrode arrays integrated with dedicated electronics provide the possibility to access dynamics of cell populations by simultaneously measuring activity of many cells in a network. In particular, complementary metal oxide semiconductor (CMOS) based MEAs feature high spatio-temporal resolution and high signal-to-noise ratio.\nThe main goal of the project is to develop a new strategy to record light pattern evoked activity from genetically identified retinal circuits in a high-throughput manner.\nSchlagworte: Microelectrode Arrays, CMOS, Retinazurück","domain":"optical_engineering"}
{"url":"https://woodysofwembley.com/product/hawke-nature-trek-12-x-50-binoculars-green/","date":"2022-11-30T13:57:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710764.12/warc/CC-MAIN-20221130124353-20221130154353-00179.warc.gz","language_score":0.9386191368103027,"token_count":534,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__180752973","lang":"en","text":"Hawke “Nature Trek” 12 x 50 Binoculars (Green)\nThe Hawke “Nature Trek” 12×50 binoculars are a full size style of binocular and have a great magnification along with good light input from the 50mm objective lenses. (the ones opposite the eyecups). They have been cleverly designed to be shock-proof, as they have a polycarbonate body, which is really strong, but also relatively lightweight and they are sealed to be waterproof, so can take a heavy down-pour or even a quick swim in a stream. Hawke have used nitrogen to stop the binoculars fogging, so there is no worry of any blurring of the image due to moisture.\nThe focusing wheel is internal, which helps keep the unit sealed and they are fog-proof, so will not get any annoying internal moisture to cloud the image. The rubber focusing wheel is really smooth and it can focus quickly, for times when the subject is moving fast, even when wearing gloves. The Hawke “Nature Trek” binoculars have an eyesight dioptre correction wheel on the right hand barrel, which can be easily adjusted for individual eyesight requirement. Simply focus the binoculars using the main focusing wheel and then turn the eyesight correction ring either left or right, to get a minus or plus dioptre adjustment, until the image is pin-sharp and that’s it, all set up for tailor-made viewing. In addition to the dioptre correction, the eyecups will twist up, for use without glasses and can be left down if using them with spectacles or sunglasses.\nThe glass in the binoculars, is multi-coated which helps with image contrast and colour rendition and the high quality BAK4 prisms ensure edge to edge sharpness and a high resolution image even in the most challenging of conditions. With a remarkable close focus distance of 2.5m for such a large magnification, anything that appears close at hand, can also be viewed through these binos and the impressive depth of field means that everything is in focus in the foreground and the background is thrown out of foucus, to help with viewing.\nThe Hawke 12×50 “Nature-Trek” Binoculars, come with a neoprene strap, case, rainguard and objective lens covers, which have been thoughtfully attached to the body of the binoculars, so they don’t get lost. Overall a really good buy.\ninc 12 months guarantee","domain":"optical_engineering"}
{"url":"http://sterlinglass.com/SOLARCOOL.html","date":"2019-03-23T23:20:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912203093.63/warc/CC-MAIN-20190323221914-20190324003914-00353.warc.gz","language_score":0.8392236828804016,"token_count":950,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__45867176","lang":"en","text":"|Solarcool® glasses provide maximum flexibility due to the durability of the metallic\noxide coating, which is deposited onto the float glass during production.\nThus, Solarcool® glass can be glazed with the reflective coating positioned on either\nthe first (#1) or second (#2) surface. The glass has improved performance, higher\nexterior visible reflectivity and a slight bronze hue when installed with the coating on\nthe first surface. When installed with the coating on the second surface, Solarcool®\nglass has lower exterior visible reflectivity while maintaining the substrate glass\nSolarcool® coated glass can be used monolithically or combined with clear glass in\nan insulating glass unit for greater thermal performance. When joined with PPG’s\nSolarban® 60 solar control, Low-E glasses, even more significant performance\nresults. Click here to see insulated glass unit comparison data.\nNew! Solarcool® Caribia™ Glass\nCaribia™ glass, when combined with Solarcool® coating on the #2 surface, creates\na unique warm green aesthetic that blends nicely with the surrounding environment.\nAlong with the other ocean-inspired reflective products, Solarcool® Azuria™ and\nSolarcool® Solexia™ glasses, Solarcool®,Caribia™ provides both excellent light\ntransmittance and a low solar heat gain coefficient for exceptional solar control\nThe warm green hue of Solarcool® Caribia™ glass becomes muted when the\nreflective coating is used on the #1 surface. The result is a more reflective, metallic\nSolarcool® Solexia™ Glass\nWith the soft reflectivity of Solarcool® coated glass and light green color of\nSolarcool® tinted glass, Solarcool® Solexia™ glass can create standout aesthetics\nfor any commercial project.\nWhen glazed with the reflective coating facing inboard (#2), Solarcool® (2) Solexia™\nglass has a natural-green reflectivity that enhances the beauty of its surroundings,\nwhile harmonizing with other natural building materials.\nWhen glazed with reflective coating on the outboard (#1) surface, Solarcool® (1)\nSolexia™ glass has higher visible light reflectivity that adapts to changing light\nconditions and the surrounding andscape.\nSolarcool® Azuria™ Glass\nSolarcool® coated Azuria™ glass takes the best properties of two superb PPG glass\nproducts and combines them into one. With the coating on the #2 surface, the softly\nreflective aquamarine color of the glass is visually stunning. Because Solarcool®\nAzuria™ glass transmits more visible light than most competitive products, building\ninteriors will be brighter and will require less artificial lighting.\nWhen the Solarcool® coated surface is in the #1 position, outdoor reflectivity is\nincreased and the solar heat gain is decreased, resulting in reduced air-conditioning\nloads. Outdoor reflected color is more neutral.\nSolarcool® Bronze Glass\nSolarcool® bronze glass provides a silver-bronze aesthetic and reduced solar heat\ngain when glazed with the reflective coating on the outboard (#1) surface and a dark-\nbronze aesthetic when glazed with the reflective coating on the inboard (#2) surface.\nWith the reflective coating on the #2 surface, Solarcool® bronze glass has subtle\nSolarcool® Gray Glass\nSolarcool® gray glass provides a silvery aesthetic when glazed with the reflective\ncoating on the outboard (#1) surface and a dark gray aesthetic when glazed with the\nreflective coating on the inboard (#2) surface. Solarcool® (2) gray glass is the\nsolution when a true gray color is desired in a low-reflectivity glass.\nSolarcool® Graylite® Glass\nSolarcool® Graylite® glass provides a rich silver aesthetic when glazed with the\nreflective coating on the outboard (#1) surface and a dramatic, almost-black\naesthetic when glazed with the reflective coating on the inboard (#2) surface. The\nvery low visible light transmittance of Solarcool® Graylite® glass (5% for one inch\ninsulating unit) makes it ideal for privacy glazing applications or high sunlight\nclimates where glare control is required\n|STERLING GLASS Ltd.\nDistributing Glass over five continents\n|WHOLESALING - PROCESSING - PROJECTS","domain":"optical_engineering"}
{"url":"https://nulantic.ca/product/prosolo-digital-water-quality-meter/","date":"2023-12-02T06:28:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100327.70/warc/CC-MAIN-20231202042052-20231202072052-00243.warc.gz","language_score":0.8583484888076782,"token_count":212,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__84210966","lang":"en","text":"Connect any ProDIGITAL integrated probe/cable assembly the ProSolo to form a complete sampling system. Probe assemblies are user-replaceable with cable lengths ranging from 1- to 100-meters, and sensors for dissolved oxygen, conductivity, salinity and/or temperature can be added. Smart sensor technology that enables sensors to be automatically recognized by the handheld. Additionally, DIGITAL sensors store calibration data, so probe assemblies can be swapped between handhelds without the need for re-calibration.\nThe ProSolo is ideal for a variety of applications including aquaculture, coastal, estuary, and wetland sampling.\nAn evolution of the Professional Series water quality meters, the ProSolo DIGITAL handheld the ProSolo DIGITAL handheld replaces the ProODO as YSI’s most advanced optical dissolved oxygen field meter. Paired with the latest optical DO and temperature (ODO/T) probe, the ProSolo benefits from years of expertise in cutting-edge dissolved oxygen technology.","domain":"optical_engineering"}
{"url":"https://code-dev.fb.com/2019/03/06/connectivity/aluminum-conductor/","date":"2024-02-25T03:01:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474573.20/warc/CC-MAIN-20240225003942-20240225033942-00744.warc.gz","language_score":0.9118236899375916,"token_count":258,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__82120491","lang":"en","text":"WHAT THE RESEARCH IS:\nAn alternative to copper conductor for submarine cables — and the first major development in cable technology since the early 1990s. Facebook researchers have partnered with Alcatel Submarine Networks to develop the first aluminum conductor for submarine cable systems.\nHOW IT WORKS:\nIn the past 10 years, fiber-optic cable capacity has grown from 5 gigabits per fiber pair (FP) to more than 20 terabits per FP. We are rapidly approaching the per FP Shannon limit (the theoretical maximum capacity that can be transported by an optical fiber). Work has been done to increase the bandwidth per optical core — the task now is to increase the total number of optical cores. In other words, we need a way to increase the number of FPs per cable.\nAs a conductor, aluminum allows for a much lower cable voltage drop, which allows for a higher number of FPs per cable. That makes aluminum a solid option to increase the number of FPs per cable — that’s also significantly less expensive than copper.\nWHY IT MATTERS:\nThese systems with a large number of optical fibers are an important first step toward space-division multiplexing systems, which could help increase the capacity of cables in the future.","domain":"optical_engineering"}
{"url":"https://www.navidate.eu/passive-optoelectronic-tracking-system/","date":"2024-04-15T21:37:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817033.56/warc/CC-MAIN-20240415205332-20240415235332-00837.warc.gz","language_score":0.9379473328590393,"token_count":312,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__136102138","lang":"en","text":"NaviDate is developing a Passive Optoelectronic Tracking System (POTS) for the monitoring of moving objects based on passive optoelectronic devices and the subsequent software processing of the footage.\nThe system provides Detection, Recognition, Identification, Localization, and prediction of movements of the monitored objects in real time. The basic principle of our solution is stereovision with multiple cameras and evaluation of image processing in real time. Deep Learning is used for the object recognition and identification.\nThe cameras work within the range of visible spectrum, while thermal cameras are used in case of worsened weather conditions (such as reduced visibility, darkness, or adverse weather). The core of the system is its software package, which ensures the processing of the captured footage and its analysis. The system continuously monitors the space and provides identification of moving objects. It gives the operator graphic information about the location of the monitored object as well as its distance. The operator can display the route of the monitored object or trace its movement on a given trajectory in a specific time sequence. Should they wish to display the actual view of the monitored object, they can turn on the object tracking view. After selecting an object, the system will display it in the view on the left. Using artificial intelligence and machine learning, the system is able to learn to recognize different categories of objects (such as drones, planes, people, cars, etc.) as well as identify objects which are already familiar (such as a service truck, a plane of a known airline company, a service technician, etc.).","domain":"optical_engineering"}
{"url":"http://hfn.ddns.info/randy/Essay-About-Led-Lights.html","date":"2021-09-24T02:25:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057496.18/warc/CC-MAIN-20210924020020-20210924050020-00424.warc.gz","language_score":0.935493528842926,"token_count":1126,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__53062345","lang":"en","text":"Essay on Replacing Incandecent Light Bulbs with LED Lighting. The law mandated strict new energy standards for lighting designed to kick-start a new era of greener, longer-lasting,more cost-efficient light bulbs and this meant kicking outdated, inefficient bulbs to the curb”(Crist).\nLED lighting has both advantages and disadvantages. Check out the pros and cons of LED lights in this debate and essay article.White light in LED can be produced in two ways. One method is, using three individual LEDs which producing the primary colours and then mixing them to produce the white light. Another method is, using the principle which is using in fluorescent lights, a phosphor material is used to convert light from UV or blue LED to white light.It mentions that these lights are radically reducing the consumption of electricity and they are more cost-efficient than incandescent lamp. According to the author, one way of maximizing the potential of these lights in lighting design is by applying the principle of refraction in a screen format to distribute the light from LED.\nLED light bulbs emit light through the use of a semiconductor that releases light energy when an electrical current is passed through it. This way of producing light differs from CFL light bulbs, which pass energy through mercury vapor to generate UV light, which is then enthralled by a phosphor covering inside the lamp, causing it to glow.\nLED (Light Emitting Diode) A light-emitting diode (LED) is a semiconductor light source.(7) LEDs are used as indicator lamps in many devices and are increasingly used for general lighting. Appearing as practical electronic components in 1962,(8) early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very.\nA light-emitting diode (LED) is a semiconductor device that produces light from electricity. LEDs last a long time and do not break easily (compared to incandescent lightbulbs).They can produce many different colors. They are efficient - most of the energy turns into light, not heat.\nAdvantages Of The Electric Light Bulb. Introduction The electric light bulb has basically remained unchanged for over a hundred years. The new federal energy-efficiency standards have taken effect and are pushing out the old uneconomical light bulbs for more efficient options, such as light emitting diodes.\nA led lamp is a solid state lamp that uses ledes ( Light-Emitting Diode ) as a light source. Because the light capable of emitting a led is not very intense, in order to reach the luminous intensity similar to other existing lamps such as incandescent or compact fluorescents LED lamps are composed of clusters of LEDs, in greater or lesser number, according to The desired luminous intensity.\nInformation About Light Bulbs for Kids. Outdoor solar light bulbs contain solar cells that convert sunlight into electricity as a power source for the light. In LED bulbs, an electric current activates a microchip that powers up multiple tiny light-emitting diodes to produce light.\nAdvantages of LED Lights The operational life of current white LED lamps is 100,000 hours. This is 11 years of continuous operation, or 22 years of 50% operation. The long operational life of an led lamp is a stark contrast to the average life of an incandescent bulb, which is approximately 5000 hours.\nHow Do LED Lights Work? It’s really simple actually, and very cheap to produce, which is why there was so much excitement when LED lights were first invented!. The Technical Details: LED lights are composed of two types of semiconducting material (a p-type and an n-type). Both the p-type and n-type materials, also called extringent materials, have been doped (dipped into a substance called a.\nThe International Year of Light 2015 was an extraordinary opportunity to talk about how important light is in our everyday lives. From its technological and manufacturing impacts to applications in healthcare, from its use in astronomy to molecular biology, and from poor lighting to light pollution, light is much more than just the switch of a bulb.\nLuker LED Lights Ask Price Beauty of art is is seen when focussed and nothing to beat LED in focussed lighting. Irrespective of rooms, pictures, sculptures, dining and retailing LED provides a comprehensive solution for every need of focussed lighting.\nLight up an LED!. We're showing how to use KY-038 Sound Sensor using Arduino. You can control LED by clap with the help of Arduino and sound sensor.\nLED Lighting For Dallas Homeowners LED (Light Emitting Diodes) are the latest and most exciting technological advancement in the lighting industry. LEDs are small, solid light bulbs which are extremely energy efficient and long lasting. LEDs operate differently than traditional incandescent light bulbs. This makes LEDs far more rugged and durable than traditional incandescent light bulbs.\nRead this English Essay and over 89,000 other research documents. The Light Bulb. The light bulb is an invention that has been around since the 1800’s. This invention has significantly, affected society by.\nLight Bulb, Invention and Purpose In 1880, Thomas Alva Edison invented the incandescent light bulb and patented it.It’s an invention that has been around since the 1800’s.This invention has significantly, affected society by allowing the world to create a comfortable safe environment.","domain":"optical_engineering"}
{"url":"http://en.scyttx.com/products/index.asp?classid=71","date":"2019-02-15T19:16:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247479101.30/warc/CC-MAIN-20190215183319-20190215205319-00019.warc.gz","language_score":0.8444905877113342,"token_count":537,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__158381759","lang":"en","text":"Patch cord is also known as optical fiber connector, refers to the cable on both ends mount connector plug, used to implement the light patch activity connection. At one end with a plug is called the tail fiber. Fiber optic jumper (Optical Fiber Patch Cord/Cable) and coaxial Cable are similar, but no mesh shielding layer. The center is the spread of light glass core. In multimode optical fiber core diameter is 50 microns to 65 microns, roughly the comparative with the thickness of a human hair. And the diameter of the singlemode fiber core is 8 microns to 10 microns. Core surrounded by a layer of refractive index is lower than the core glass envelope, to make the optical fiber to keep within the core. Outside is a thin layer of a plastic coat again, to protect the sleeve.\n1. Low insertion loss & high return loss\n2. Good repeatability & inter changeability\n3. PC/UPC/APC polishing\n4. FC/SC/ST/LC/MU connector\n5. Suitable for high-speed, high-capacity optical fiber tranmission system\n6. Provide singlemode/multimode pactch cord and pigtails\n7. Fiber diameter: Φ 0.9/2.0/3.0mm\n8. Length/Type: as customers' demand\n1. Optical fiber communications system\n2. Optical fiber access networks\n3. Optical fiber CATV\n4. Optical fiber test equipments\n5. Optical fiber data communication\n2.0mm ftth fiber optic patch cord cable introduction\nWhy Choose YUANTONG COMMUNICATION?\n1. OEM/ODM supplier of the top manufactures\n2. Focus on customized cost-reduction\n3. Continues to improve ourselves\n4. Always keeps in connecting the world\nSichuan Yuantong communication Co.,Ltd is a company specializing in the development of optical communication products,production ,sales,and with independent right of high-tech enterprises.\nAdd: Chengdu Southwest Airport Economic Development Zone ,from the Shuangliu Airport, highway takes only a few minutes .\nScale of company: than 4000 square meters(office building area 1200 square meters , plant construction area of 2500 square meters ,containing optical fiber cable workshop ,workshop ,extrusion workshop,preparatio workshop)\nStaff:More than 150 workers\nMain product: the covered optical cable,indoor cable and FTTX professional solution for the whole series of products\nOur market: United states,Europe,the middle East and Southeast Asia and many other counties and regions","domain":"optical_engineering"}
{"url":"https://rodalight.be/en/find-your-accurate-white-color-tint/","date":"2021-05-17T08:58:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243992159.64/warc/CC-MAIN-20210517084550-20210517114550-00559.warc.gz","language_score":0.9246876239776611,"token_count":631,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__50801151","lang":"en","text":"LED lighting is available in different shades of white. Offering more efficient or more pleasant lighting, warmer or cooler, whiter or yellower, depending on the need. The choice of shade of white of a LED light is generally a very subjective thing.\nIn Northern European countries for example, the tendency is to opt for warmer (yellower) shades. While in Mediterranean countries, the trend is focused more on cooler (whiter) lights. But this is only a trend, an observation, and certainly not a rule…\nWHITE vs WHITE: MAKE A DIFFERENCE\nThe shade of light or the temperature of the colour is measured in degrees Kelvin (K).\nThe lower the colour temperature (2700K or less) the more yellow the LED will look and will be known as extra warm white. For 3000K, we talk about warm white (between yellow and white: less obvious yellow but not completely white).\nThe higher the colour temperature (4000K, 6000K, 6500K) the whiter the look of the LED (4000K) even blue white or daylight (6000K). The white of this type of lighting (6000K or more) is referred to as cool or very cool (daylight)\nWhiter than white – sometimes too white\nA second important parameter is what we call the CRI (or Color Rendering Index).\nThis index, in addition to the colour chosen, qualifies the degree of purity of LED light obtained. It is measured on a scale from 0-100. Good quality LED lights for displays or interiors generally have a CRI of approximately 85. You could juggle between a 2700K super warm white light or 3000K warm white with a CRI of 80 or 95.\nFor example: A LED light of 4000K with a CRI of 95 means: white light for which the colour rendering has an accuracy equivalent to 95%. (ideal for a jeweller)\nBy comparison, an orange sodium light on the motorway will have a CRI of 20-29. Consequently, colours can be distorted and then impossible to recognise. By using a LED light, or a device which uses special diodes of even higher quality and a CRI in the range of 90-95, it may mean that the price is higher.\nHow to find your way around LED light shades?\nTo make it easier to understand, you can also compare the diodes used in LED units to diamonds in jewellery: it is possible to find a diamond and diamond rings of different purities.\nYou pay more or less depending on the quality and the price that you are prepared to invest. LED lighting is comparable. We can propose various types of bespoke diodes and a unit fitted with the perfect shade may be proposed.\nA member of our team would be delighted, where appropriate, to visit your premises if you have any questions about your project. He/she would be able to present the LED light units and show you the shades and differences between one type of unit and another, as well as food lights.","domain":"optical_engineering"}
{"url":"https://feature.tamlite.co.uk/cpd-optics","date":"2024-04-20T01:30:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817463.60/warc/CC-MAIN-20240419234422-20240420024422-00235.warc.gz","language_score":0.9165684580802917,"token_count":244,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__138819101","lang":"en","text":"Optics allow you to control your illumination pattern, either by diffusing light or focusing it as your application requires. When you are considering optics for a project, the difference between, and the performance of, exterior and interior lighting needs to be examined.\nOur CIBSE Approved CPD on Optics in Exterior and Interior Lighting is essential learning for lighting consultants, designers and architects, electrical contractors, facilities management and estates/property professionals operating in the built environment. Our CPD aims to give you an improved knowledge of optics generally, and their importance to human wellbeing and workplace productivity. We also cover the role optics can play in creating comfortable, aesthetically pleasing and energy efficient environments – plus an overview of the applications in which optics in lighting is crucial.\nDuring the presentation, you will go through:\nWhat are optics Luminaire Performance The Importance of Optics The Role of Optics Optical Applications\nOur CPD will enable you to have an improved knowledge of the increasingly important topic of circular economy.\nWe look at some key challenges set out in TM65 + TM66, and legislative aspects of BS8887 & BSEN 15978, along with the other latest standards and upcoming changes.","domain":"optical_engineering"}
{"url":"https://pestcontrolmids.co.uk/do-you-want-some-hid-lights-xenon-brenner/","date":"2019-04-20T04:18:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578528523.35/warc/CC-MAIN-20190420040932-20190420062932-00263.warc.gz","language_score":0.9507982134819031,"token_count":761,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__43776010","lang":"en","text":"Do You Want Some HID Lights (Xenon Brenner)?\nDue to the introduction of high-intensity discharge lamps or high-intensity discharge lamps for the first time in the BMW 7 series, more and more cars are installed every year. Soon, they will become the standard in the automotive industry. The reason is that the amount of light generated by power consumption is greatly improved compared to standard halogen lamps compared to HID lamps. This reduces the size of the headlamps and provides better illumination than previous models.\nIn operation, HID lamps burn metal salts, providing 2,800 to 3,500 lumens, while halogen headlights provide 700 to 2100 lumens. The benefits of having a HID lamp are obvious. However, manufacturers are slow to address some of the issues related to the implementation of new technologies. For example, HID lamps require a higher voltage than normal bulbs to function properly, sometimes as high as 85 volts.\nIn addition, they may take a few minutes to warm up and begin to produce full output. This can be solved by using helium instead of argon. In this way, they can produce a minimum of enough light when turned on. This is why the car light is called a xenon lamp or xenon brenner.\nThe most important issue with these lights is illuminating. They produce a 40% increase in reflectivity compared to conventional bulbs. This huge light is a danger to all drivers from the other direction. In addition, the accumulation of dirt on the lens increases glare.\nTherefore, according to ECE 48, the lighting system requires an automatic beam leveling and lens cleaning system to prevent glare from damaging other drivers on the road. Another problem with these lamps is there mercury content in the old bulb. The new type produced since 2004 is mercury-free but incompatible with older systems.\nIn general, incompatibility is a major problem with these lamps, which is why they are widely used. It is almost impossible to install a HID bulb in a filament bulb headlamp. In fact, it is illegal in almost every country because it causes intense illumination and HID bulb failure.\nIn addition to the competition, you can choose from a wide range of choices depending on the color and temperature of the high-intensity discharge lamp. From 5000 K to 12000 K, you can choose as needed. If you have seen the strong reflection of a luxury headlight, you will usually pass the other side or rear view of the road. The blue-and-white tone of the suffocating light caught people’s attention. Not long ago, high-intensity discharge (HID) headlamps were designed for high-priced cars. Don’t worry if your car is not equipped with HID. You only need to be connected to the internet, and there are many online stores that offer HID lights for your Honda. The Honda HID kit includes all the accessories needed for the conversion.\nThere are kits on the market that offer a complete headlamp with an HID bulb, but the old models do not have an automatic beam leveling and cleaning control system. Lenses, which are useless for most people. Finally, the cost of these lamps is significantly higher than that of halogen lamps. However, this is offset by low fuel consumption and lamp life.\nAll of these issues will definitely slow down lighting to become the dominant type of the automotive industry, but this will not stop it. The benefits of this system are too important to be lost. Most of the problems will be solved in the next few years, and as most new cars are equipped with HID headlights, we will see more and more on the road. Find more about xenon brenner.","domain":"optical_engineering"}
{"url":"https://www.soundville.in/how-to-shop-for-a-new-projector/","date":"2023-09-27T13:07:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510297.25/warc/CC-MAIN-20230927103312-20230927133312-00072.warc.gz","language_score":0.9050405621528625,"token_count":668,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__34706675","lang":"en","text":"Video projectors have long been utilized in business and commercial entertainment and certain high-end home theatre systems as a presenting tool. However, video projectors are becoming more widely available and cheap to the general public. Before you buy your first video projector, consider some of these helpful hints.\nVideo Projector Types\nThere are two types of video projectors: DLP (Digital Light Processing) and LCD (Liquid Crystal Display).\n- DLP projectors make use of a light source, a colour wheel, and a chip containing small tilting mirrors. The light is projected onto a screen after passing through the colour wheel and reflecting off the mirrors.\n- LCD projectors use a light source that sends light through three LCD chips (assigned to the primary colours red, green, and blue) to make and display images.\nLamps, LEDs, and Lasers\nConsider whether the projector’s light source is a lamp, LED, or laser. Depending on the type of light used, each of the three possibilities has advantages and downsides.\nBrightness and light output\nThe ANSI Lumens rating is the most accurate way to determine whether a projector generates a bright and clean image. Even in a dark setting, the image will appear muddy and soft if the light output is too low.\nVideo projectors with 1,000 ANSI Lumens or more are bright enough for home theatre use. The demand for more or fewer lumens is also affected by room size, screen size/distance, and ambient room light connections. Although the light output capabilities of video projectors have improved, they still perform best in a darker room.\nComplements brightness and Contrast is the ratio between the black and white portions of an image. High contrast ratios deliver whiter whites and blacker blacks. A projector may have a great Lumens rating, but your image will look washed out if the contrast ratio is low. A contrast ratio of at least 1,500:1 is good in a darkened room, but 2,000:1 or higher is considered excellent.\nDisplay Resolution and Pixel Density\nIf you watch HDTV most of the time, acquire the highest feasible real pixel count (preferably 1920×1080). For DVDs, a natural pixel count of 1024×768 is sufficient. The display of 720p HDTV transmissions requires a pixel count of 1280×720.\nDon’t Forget to Include the Screen!\nScreens are available in a variety of sizes, and costs. The projector determines the ideal screen type, the viewing angle, the quantity of ambient light in the room, and the distance between the projector and the screen.\nA Home Theater System in Noida with a video projector as its focal point can significantly improve the home entertainment experience. However, do not reach for your wallet and purchase whatever is advertised or on sale.\nPrices for video projectors range from several hundred to several thousand dollars, depending on the above considerations. Soundville.com can provide you with the best music equipment at a reasonable price.\nThe ease of installation and setup allows you to experiment with different screen sizes and distances. You can even place a sheet on an outside wall if your projector is portable (or garage door).","domain":"optical_engineering"}
{"url":"https://projectorstoday.com/why-are-projectors-so-expensive/","date":"2024-02-22T06:52:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473735.7/warc/CC-MAIN-20240222061937-20240222091937-00267.warc.gz","language_score":0.9434162974357605,"token_count":664,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__210390518","lang":"en","text":"Projectors have become indispensable tools for many applications, from educational institutions and business presentations to home theatre setups. However, the upfront cost of projectors often raises eyebrows, leaving many wondering why these devices can be so expensive. In this blog article, we will delve into the factors that contribute to the high price tags of projectors and shed light on the reasons behind their seemingly lofty prices.\nAdvanced Technology and Components:\nOne of the primary reasons behind the high cost of projectors lies in the advanced technology and high-quality components used in their construction. Projectors rely on cutting-edge optics, precision lenses, and high-resolution imaging chips to deliver exceptional image quality. These components are often manufactured by specialized companies and are priced accordingly. Moreover, manufacturers invest heavily in research and development to improve projector features and performance, adding to the overall cost.\nResolution and Image Quality:\nThe resolution of a projector significantly impacts the final image quality it produces. Projectors with higher resolutions, such as 4K or even 8K, require more sophisticated and expensive imaging chips, resulting in a higher price point. As consumers demand higher image clarity and sharpness, manufacturers continue to invest in enhancing the resolution capabilities of their projectors, contributing to the expense.\nLight Source Technology:\nThe type of light source used in projectors plays a pivotal role in determining their price. Traditional lamp-based projectors have been the norm for a long time, but they are gradually replaced by more advanced light sources, such as laser and LED technologies. While these newer light sources offer benefits like longer lifespan, lower maintenance costs, and improved colour accuracy, they also add to the upfront cost of the projector.\nLumens and Brightness:\nBrightness, measured in lumens, is another critical aspect of projectors. Devices with higher brightness are better suited for large venues and well-lit rooms. Achieving higher brightness levels often requires more powerful light sources, which can drive up the cost. Additionally, high dynamic range (HDR) and wide colour gamuts enhance colour reproduction, increasing the price.\nPortability and Form Factor:\nProjectors come in various sizes and form factors, ranging from compact portable models to large, high-end installations. The design and engineering required to create sleek, portable projectors with excellent performance can raise manufacturing costs. Conversely, professional-grade projectors for commercial applications often require heavy-duty materials and precision engineering, impacting their price accordingly.\nBrand reputation and market positioning also influence projector pricing. Established and reputable brands often charge a premium for their products, given their proven track record of delivering high-quality projectors. Consumers may be willing to pay a higher price for a brand they trust, contributing to the perception of expensive projectors.\nIn conclusion, the seemingly high cost of projectors can be attributed to a combination of factors, including advanced technology, high-quality components, resolution and image quality, light source technology, brightness capabilities, design and form factor, and brand reputation. As technology evolves, we can expect projectors’ costs to decrease gradually over time. Nonetheless, investing in a high-quality projector can offer an unparalleled audio-visual experience and be a worthwhile long-term investment for personal and professional use.\nRelated Buying Guide:","domain":"optical_engineering"}
{"url":"https://www.darmon.com/product/led-full-matrix-vms.html","date":"2024-04-16T07:58:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817073.16/warc/CC-MAIN-20240416062523-20240416092523-00727.warc.gz","language_score":0.8820719122886658,"token_count":702,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__62433941","lang":"en","text":"Dianming's variable message sign is certified by the Italian Lab (EU Notified Body) - ISTITUTO GIORDANO, according to the EN12966 standards. All displays provide brilliant legibility, high energy efficiency and outstanding LED luminosity. The patented design of optical lens maximize the effective luminance of LED with best beam angle. A wide range of variable message signs can be customized according to different project requirements.\n■ Low voltage, constant current driver chip, with high efficient power supplies, ensuring the best energy saving performance.\n■ Prevent damage from over-voltage, transient surge and lightning.\n■ Multiple smart design to achieve IP66 for VMS cabinet.\n■ Patented secondary optical lens design reduce light reflection and offer high brightness output as well as high contrast ratio.\n■ Built-in photosensors adjust and offer enough brightness during day and night, free of glare.\n■ LED failure diagnosis, supporting visual online detection.\n■ Multiple languages and variable sized fonts available.\n■ Capable to detect operation temperature and ambient illumination to ensure safe operation.\n■ Comply with EN12966 standards.\n■ Legibility > 200m.\n■ Support RJ45, RS232/RS485, TCP/IP, 3G/4G and other Communication interface.\n■ Support NTCIP, ModBus, XML, Profibus, DGT, DIANMING and more other communication protocols.\nThe design of Dianming's optical lens is able to focus the light which comes from wide angle (120 degree) of LEDs into narrow angle to be easily read by road users, meanwhile the luminous efficacy got improved and the electric current for LEDs is reduced. As a result, it extends the life span of the VMS as well as energy-saving.\nModular optical lens design means convenient for assembly, maintenance and waterproof. High quality material of optical lens contribute UV-resistance and high light transmittance. The design in honeycomb bead surface is helpful to reduce the glare from sunshine and street light.\nThe surface of Dianming's VMS applies the unique matte abrasive structure which will create a diffuse reflection to the sunlight; thus the brightnessreflection from front surface of the VMS is reduced.\nThe optical lens of Dianming's VMS applies the internal light absorption design which will decrease the external light reflection on the lens, so the brightness reflection of the VMS is ulteriorly reduced.\nWith the matte abrasive surface and the internal light absorption design on lens, the contrast ratio of Dianming's VMS can reach as high as 20:1 in white color, under the external illumination at 40000 lux.\nBesides traditional VMS structures which use visor design on the surface to increase the contrast ratio, Dianming also produce European style VMS, which its surface with optical lens is more smooth, thus no dust or snow will stay on the VMS surface. The display content on the VMS will be clear and complete all the time.\nCompare with matrix font, normal matrix font only can display fixed size font, i.e. 16×16, 24×24, 32×32, 48×48, but since we use windows vector font, font can be continuously variable among 1-72, in which we call font infinite zooming. Additionally, some special size fonts are also available without customization.(MULTI-LANGUAGES, various sizes fonts)","domain":"optical_engineering"}
{"url":"https://robot.omitech.it/en/infrared-thermal-camera-a-smart-solution-with-no-operator-needed/","date":"2023-12-02T18:37:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100448.65/warc/CC-MAIN-20231202172159-20231202202159-00573.warc.gz","language_score":0.9341013431549072,"token_count":514,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__285068285","lang":"en","text":"In the contingent socio-economic context, public and private companies are called upon to respect and enforce the containment measures of Covid-19, the global pandemic now widespread in all states of the world. One of the “key” tools for containing the virus is represented by thermal cameras, an infrared screening device that allows the detection of body temperature at distance.\nThe principle underlying the operation of thermal cameras is thermal radiation: the greater the intensity of the radiation detected, the higher the body temperature.\nAre thermal cameras reliable tools?\nNot all thermal cameras are the same: it is possible to find them on the market and on the main e-commerce platforms for little money, versions with questionable levels of precision. It is understandable that tools of this type do not have the adequate characteristics for all those professional activities that are in contact with tens of hundreds of people every day. Just think of shopping centers, stations, supermarkets, pharmacies, waiting rooms, counters, gyms, hospitals.\nActivities such as those just mentioned are sometimes not equipped with a guard at the entrance and require professional infrared thermal cameras with access control systems and temperature detection of several people on the move.\nThe professional infrared screening solution designed by Omitech\nOmitech thermal cameras represent a convenient and safe solution for offices, airports, stations, large waiting rooms, shopping centers, supermarkets and hospitals.\nOmitech thermal cameras identification system uses intelligent technology to detect body temperature. Thanks to a double camera system, the device can boast a recognition capacity of 30 people per minute. The detection of the body temperature of several people comes in a very short time, an enormous advantage in contrasting slowdowns and queues near the entrances.\nThe temperature measurement response is fast (0.3 seconds) and facial recognition automatically measures the temperature when the person is within 0.5-1.2 meters. Double camera and facial recognition also allow the identification of the temperature of people even when they are wearing eyewear and masks.\nThe result of temperature measurement reaches an accuracy of +/- 0.3 degrees, so precise that it is classified and certified as a medical device.\nOmitech infrared screening device is ready for use and does not require dedicated personnel to detect temperature.\nOmitech can help your business\nOmitech is an Italian company with 20 years of experience in ICT. We are proactive towards new technologies and our mission is to provide real value to the business of our customers.\nContact Omitech for a customized solution and find out more about our company.","domain":"optical_engineering"}
{"url":"https://photonics.german-pavilion.com/en/exhibitors/?cid=36582","date":"2019-03-20T13:09:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-13/segments/1552912202347.13/warc/CC-MAIN-20190320125919-20190320151919-00262.warc.gz","language_score":0.8879673480987549,"token_count":102,"dump":"CC-MAIN-2019-13","global_id":"webtext-fineweb__CC-MAIN-2019-13__0__68635672","lang":"en","text":"art photonics GmbH is the worldwide leader in development and production of specialty fiber products in a broad spectrum, from 0.3 to 16µm for medical and industrial applications.\nBooth number: 75C12\nAs a high-tech company focusing on the fields of manufacturing, laser, electronics and medical technology, TRUMPF offers customers both innovative and high-quality products.\nBooth number: 75C18\nClick here if you notice an image that violates copyright or privacy rights.","domain":"optical_engineering"}
{"url":"https://sikemia.fr/smoothly-tunable-surface-properties-of-aluminum-oxide-core%E2%88%92shell-nanoparticles-by-a-mixed-ligand-approach/","date":"2023-01-29T06:00:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499700.67/warc/CC-MAIN-20230129044527-20230129074527-00813.warc.gz","language_score":0.8929135799407959,"token_count":265,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__71687917","lang":"en","text":"Luis Portilla and Marcus Halik\nWe present a facile solution-based procedure for tailoring the surface properties of aluminum oxide nanoparticles (AlOx-NPs) by the formation of tunable core–shell systems with self-assembled monolayers. By employing chained molecules with a phosphonic acid anchor group and either hydrophobic or hydrophilic chains the surface properties of the nanoparticles change dramatically. So, the solubility can be tuned orthogonal from trifluorotoluene (CF3–C6H5) for hydrophobic shell to water (H2O) for hydrophilic functionalization respectively. Spray coated films of those functionalized nanoparticles exhibited superhydrophobic or superhydrophilic properties. The surface properties can be tuned smoothly by the formation of a mixed ligand monolayer from corresponding stoichiometric mixtures of the ligands. The core–shell nanoparticles were investigated by means of thermogravimetric analysis, TGA; Fourier transform infrared spectroscopy, FTIR; and static contact angle goniometry, SCA. The effect of different dipole moments of the SAM molecules in mixed shell nanoparticles to their stability in dispersions was studied by zeta potential measurements.","domain":"optical_engineering"}
{"url":"https://hipsec.unlv.edu/john-kearney/","date":"2018-12-11T05:02:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823565.27/warc/CC-MAIN-20181211040413-20181211061913-00050.warc.gz","language_score":0.8760716915130615,"token_count":433,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__218780986","lang":"en","text":"Status: 4th year undergraduate student\nProject: Unexpected Structural and Electronic Behavior of Sn3N4\nAdvisor: Dr. Ashkan Salamat\n- B.S. in Physics will be completed in Spring 2018\nMy research involves static high pressure/temperature studies of various materials using laser heated and resistive heated diamond anvil cells (DAC). Through my work I have carried out experiments in the multi-megabar pressure regime using a DAC. I have used electrical discharge machining and laser drillers for gasket preparation, and single and triple grating spectrometers for Raman spectroscopy to measure pressure and collect data on samples. Tin nitride has shown the remarkable behavior of a band gap energy that increases as pressure is increased, and my work on tin nitride has involved setting up an optical absorption system to measure bang gap energies in the visible range of samples at high pressure.\nBoth CO2 and Nd:YAG lasers have been used to laser heat conducting materials and wide band gap semi-conductors. I have conducted X-ray diffraction and absorption at Argonne National Lab during these laser heating experiments to give insight to the structural and electronic behavior of Sn3N4. Through the X-ray absorption experiments I have become familiar with performing DAC experiments using beryllium as a gasket material. This highly toxic low-Z metal is necessary for absorption experiments so as not to scatter incident X-rays.\n- X-ray diffraction experiments at Argonne National Laboratory Advanced Photon source\n- X-ray absorption spectroscopy experiments at Argonne National Laboratory Advanced Photon Source\nCollaborations with national lab scientists:\n- Collaboration with Dr. Changyong Park from Argonne National Laboratory Advanced Photon Source\n- Collaboration with Dr. Jesse Smith from Argonne National Laboratory Advanced Photon Source\nProfessional schools & workshops:\n- 2015 UNLV Extreme Crystals Weekend workship\n- 2016 Russell L. & Brenda Frank Endowed Scholarship\n- 2016 NSF EPSCoR Undergraduate Research Opportunity scholarship\n- 2017 Poster presentation at SSAA annual review conference","domain":"optical_engineering"}
{"url":"https://ciskoconnection.wordpress.com/2014/04/21/what-is-a-led-monitor/","date":"2018-06-19T16:22:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267863100.8/warc/CC-MAIN-20180619154023-20180619174023-00574.warc.gz","language_score":0.9563944935798645,"token_count":141,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__48952181","lang":"en","text":"An LED monitor (short for Light Emitting Diode) or LED display is a flat screen, flat panel computer monitor or television. It has a very short depth and is light in terms of weight. The actual difference between this and a typical LCD monitor is the backlighting. The first LCD monitors used CCFLinstead of LEDs to illuminate the screen.\nLED monitors offer many benefits when compared to those which are CCFL lit including:\n- Typically are less expensive\n- Broader dimming range\n- Overall more reliable\n- They run at a lower temperature, and consume much less power, as few as 20 watts\n- Higher dynamic contrast ratio\n- Longer lifespan and less environmental impact","domain":"optical_engineering"}
{"url":"http://lurit.ru/shop/studijnyj-svet/profile-300z","date":"2020-10-28T05:15:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-45/segments/1603107896778.71/warc/CC-MAIN-20201028044037-20201028074037-00177.warc.gz","language_score":0.8370688557624817,"token_count":548,"dump":"CC-MAIN-2020-45","global_id":"webtext-fineweb__CC-MAIN-2020-45__0__83243554","lang":"en","text":"1*300W/200W COB LEDs (available for CW/WW/RGBW/RGB/CW+WW)\n50,000 hours life span and low power consumption\nColor Rendering Index(CRI): Ra≥95\nOptimized high definition optical system for improved photometric performance\nThrough months of research and development, by learning from the top international brands who are professional at studio lights, Color Imagination recently launched a totally new series of high definition and ultra quiet LED studio lights into our product range, basing on our driving force, light quality.\nPROFILE 300Z/200Z is a high definition SPOT lighting system with manual zoom system from 15°-38°, available for different options:\nPROFILE 300Z-CW: 1*300W cool white 5600K COB LED\nPROFILE 300Z-WW: 1*300W warm white 3200K COB LED\nPROFILE 200Z-CW: 1*200W cool white 5600K COB LED\nPROFILE 200Z-WW: 1*200W warm white 3200K COB LED\nPROFILE 120Z-CW: 1*120W cool white 5600K COB LED\nPROFILE 120Z-WW: 1*120W warm white 3200K COB LED\nPROFILE 200Z-F: 1*200W 4-in-1 COB LED\nPROFILE 200Z-T: 1*200W 3-in-1 COB LED\nPROFILE 200Z-D: 1*200W 2-in-1 COB LED (Cool White+Warm White)\nThe housing is made by rugged, die cast aluminum alloy, compact and light weight. The profile features brightest output and the boldest rendering of the colors you use most, flicker free even at high speed. It delivers projection like natural sunlight. The 2-in-1 version’s temperature and tints could be adjusted to illuminate individual skin tones perfectly, resulting in great look in person and on camera. The bi-colors are individually tunable to achieve innovative tungsten to daylight advantages, color temperature adjustable from 3200K to 5600K. The RGBW/RGB version are with infinite color mixing system that brings any colors to lighting designers. The profiles come with 3 metal spot cutting slots by which the users could cut the spot into kinds of shapes. Color frame, gobo slot and manual iris system are optional.\nThe profiles are ideal for theatres, houses of worship, conference rooms, special photography, TV sudios, exhibition centres, universities and schools, hospitality, retail, clubs, etc.","domain":"optical_engineering"}
{"url":"http://zcbi.rentbikephuket.ru/160","date":"2021-02-27T01:16:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178358033.38/warc/CC-MAIN-20210226234926-20210227024926-00201.warc.gz","language_score":0.9142791032791138,"token_count":2433,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__33506944","lang":"en","text":"The best lens for the Sony a6000 will depend on your requirements. There are a few long lenses for micro four thirds cameras but I liked the look of the Olympus 70-300mm f4-5. The 16-50mm current kit lens is better than you would think, actually pretty good. Find low everyday prices and buy online for delivery or in-store pick-up. It can also use FE-mount lenses, designed for full frame Sony mirrorless cameras.\n*Among interchangeable-lens digital cameras equipped with an APS-C image sensor as of Febru, based on Sony research. Not to mention that I cannot put wide angle lenses on it and it has nowhere near the light gathering ability of the A6000. What lenses work with a6000? 8 as my go to lens, especially for hiking. manual focus prime lens \"The. You just need to change the &39;Fire without lens&39; menu option to &39;Enable&39;, because with a Nikon adaptor fitted the camera thinks it has no lens attached at all. Use \"Remote\" to control and monitor live shooting from your PC; \"Viewer\" to quickly preview, rate, and select photos from large image libraries; and \"Edit\" to develop RAW data into high-quality photos for delivery.\nThe Sony a6000 can use A-mount lenses but you will need an adapter. 7 you are able to take shots at nighttime and in dark environment. Many of the remote solutions I have looked at only cover stills, including the not so smart Sony \"smart remote control\" phone app. The built-in Wifi also enables remote control from your smartphone or tablet, options for uploading to the cloud, across Wifi networks, and the ability to transfer images from the camera and. 0 ED UMC Lens (9): Rokinon 135mm f/2. It is a great lens for photography such as landscape and portrait with its max aperture of f/1. With a mirrorless camera like the a6000 there&39;s another inexpensive macro option a lot of folks fail to consider.\nAttached with an a6000 24. These cameras work with all Sony E mount lenses and can work with lenses of other mount types with the use of an adapter. Yeah it weighs about half as much as one of my Canon bodies, without a lens.\nWhat is the best lens for a Sony a6500? You do want to use the camera distortion correction or the lens correction in Lightroom, since uncorrected the distortion on the wide end is impressive. You can get a 50mm f/2. as in a little over one pound. Some adapters are manual focus only which can be a problem because many Canon and Nikon DSLR lenses don’t have an aperture ring, so you need to find an adapter that can let you control these settings electronically (the adapter must have electronic contacts on the mount). 99) as well as higher resolution. · The optional wireless remote control does not work with the camera.\nThe Sony -FE 90mm f/2. 8 superb enlarging lens does the a6000 remote work with a manual lens for a fraction of it&39;s original value and a fraction of the cost of that macro lens. I really enjoy using manual focus with my A6000. (A6000, A6300, A6400. · What is a remote shutter release and how does it work? Current Price 9. Elevate your photography with the Imaging Edge desktop applications. I have been using the Sigma 30mm f2.\nPrice Match Guarantee. Also known as IBIS, this feature stabilizes the a6500 so you can shoot steady handheld video or low-light photos no matter what lens you are using. Without this it won’t work: Then tab 2, set “Peaking Level” to Mid or High (whichever works for you. The Panasonic GX85 has built in stabilisation so you don’t need it in the lens. With a battery in and a 18-55 lens the unit weighs a mere 16. Having to manually focus is the obvious downside, and I know some people don&39;t mind that but there are still some issues. · Best Telephoto lenses for Sony A6000.\nEven the more modern video cameras cannot hold a candle to A6000 in that department. The Sony a6000 uses standard E-mount lenses, designed for its APS-C sensor. I tend to never use manual focus on my Sony lenses. 8 Macro does the a6000 remote work with a manual lens lens is not only a great lens for Macro work,.\nWhat’s the best lens for Sony a6000? It is used when pressing the camera’s shutter button or built-in self timer is impossible, impractical or simply inconvenient. Furthermore, A-mount lenses are designed for Sony’s DSLR and DSLT cameras which have a longer flange distance (sensor to mount) than mirrorless cameras.\n8 A Mount Lens ( for a 7 Day Rental – See More) Sony 16-70mm f/4 ZA OSS Lens ( for a 7 Day Rental – See More) Sony E PZ 18-105mm f/4 G OSS Lens ( for a 7 Day Rental – See More). 00 Get it as soon as Mon, Nov 30. Make sure to turn the a6000 off or the battery will not charge. With this lens its aperture and focus is set manually. Basically with Meike MK-35mm F1. 7 you get a standard manual 35mm Sony A6000 prime lens.\nIn contrast, the other a6000 cameras offer only 2-axis stabilization when using a stabilized lens. It&39;s manual zoom. Lens & Optics; Lens Mount: Sony E: Lens: Sony SELP1650 PZ 16-50mm f/3. I like it and it&39;s sharp and all, but now I&39;m noticing that I might be better off with something a little wider, and I like the kit lens since it has a good focal range 16-55mm but it is not as sharp or good quality as the sigma of course. 0 ED UMC Lens is a manual focus telephoto prime lens useful for portraiture and most telephoto applications. My lunch weighed more than that.\nHow do you charge an A6000 camera? · First, use settings tab 3 to enable “Release W/O Lens”. Applicable Products and Categories of This Article NOTE: For additional information regarding any of the features or settings discussed in this solution, refer to the supplied operations manual. Product Title Sony Alpha A6000 Manual Focus High Power 1000mm Lens. First, they added 5-axis in-body camera stabilization. The a6000 battery is the NP-FW50.\nAll of the cameras in the a6000 line use the same system. Best Lenses for the Sony a6500, a6300, and a6000: Zooms Sony E 10-18mm f/4 OSS Lens ( for a 7 Day Rental – See More) Sony 16-50mm f/2. I got the manual out to check the specs. I also have a Sony A7S and a Sony A7R ii that I use with the Yashica lenses. 3 megapixel sony camera.\n6 OSS; 9 elements in 8 groups, 4 aspheric surfaces: Focal Length (35mm equivalent):. · 7 Recommended Zoom Lenses for a6000 Series E Mount Cameras. Can You mount lenses on a Sony A6000?\nA remote shutter release is a device used to trigger a camera from a distance. Shop for macro lens for sony a6000 at Best Buy. · I use the Sony A6000 with the earlier kit soon, the SEL1855 lens.\n6 OSS IS lens mounted. The camera rattles along at 11 fps just like it does with a Sony lens. · The Best Wide Angle Lenses for Landscapes – Sony a6000 / a6300 / a6400 / a6500 Last updated: Aug Go to Comments A quick look inside the camera bag of most photographers will usually reveal at least one wide-angle prime or zoom. Basically with Meike MK-35mm F1. With the general collapse of the film darkroom enlarging lenses can be had for very little $$. Measured using internal methods with an E PZ 16-50 mm F3. No problem with &39;Continuous Hi&39; and a manual Nikon lens.\nSee more results. The Wi-Fi feature is about the same as the A6000’s predecessor, and can run Sony’s feature-enhancing ‘Playmemories Apps’. The A6000&39;s APS-C size imaging chip (the same size as in most DSLRs) has nearly twice as many phase detection sensors as its predecessor, the NEX-6, does (179 vs. I’ve divided the post into prime lenses and the best all in one lenses for the A6000 (or others) as that’s often the first choice you have to make. Shop Sony Alpha a6000 Mirrorless Camera with E PZ 16-50mm f3. Okay, so maybe it’s lighter than my 7DMKII, or my 6D,. Sony’s A-mount lenses have a different bayonet than E-mount lenses so they can’t be attached directly.\n) I figured I’d take a stab at answering that question! And the lens fits perfectly except for the fact that it does not extend when the camera turns on. It expresses vibrant color and soft out-focusing area which makes it the best lens to shoot portrait, night scenery, wild-life and journalism. Alternatively, the a6000 can be charged via USB by a portable power bank or you computer. This includes the rest of the Sony Alpha series as well. · Nikkor Z, Canon EF-M and RF lenses won’t work on the a6000.\nTo charge it, you connect the power cord (mains lead), the AC adapter and the Micro USB cable to the camera. 6 OSS Lens Graphite Gray at Best Buy. CIPA guideline compliant. Contrast is much batter than using native lenses too. So i reattached it yet the issue persisted however what I find interesting is that there is no issue with any of the contacts or joining pins.\nLightweight, compact and sturdily built, the α6400 is loaded with impressive capabilities and features. They have the same size sensor and mount type. Sony Alpha a6000 Mirrorless Digital Camera with 16-50mm and 55-210mm Lenses + 32GB Card, Tripod, Case, and More does the a6000 remote work with a manual lens (19pc Bundle) 8. Anyway, the Canon lenses work really well on the A6000, and the colour, light transmission and so on are all excellent. Finally got time to check out the a6000 earlier today. · They have some features which beat the a6000 too and there are a few long lenses available for the micro four thirds lens mount.\nWith super-fast AF and highly precise subject tracking, it&39;s ideal for capturing fast-moving action, while its wide sensitivity range and stunning image quality make it suitable for just about any photographic opportunity you may encounter, whether you&39;re shooting stills or movies. Rokinon 135mm does the a6000 remote work with a manual lens f/2. What lenses work with A6000?\n-> Actividades manuales para niños de las manzanas verdes\n-> Gsm gprs gps tracker user manual 303 portugues","domain":"optical_engineering"}
{"url":"http://tceeh.technion.ac.il/Night-time-ground-hyperspectral-imaging-for-urban-scale-remote-sensing-of-ambient-PM.-II.-Modal-concentrations-retrieval","date":"2020-07-11T22:58:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657129257.81/warc/CC-MAIN-20200711224142-20200712014142-00545.warc.gz","language_score":0.8877979516983032,"token_count":266,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__215215502","lang":"en","text":"Retrieval of aerosol loading in vertical atmospheric columns is a common product of satellite and ground instruments that measure spectral extinction of solar radiation throughout the entire atmosphere. Here we study ground hyperspectral imaging of artificial light sources as a complementary method for retrieving fine aerosol concentrations along quazi-horizontal ambient open paths. Previously, we reported hyperspectral measurements of the aerosol optical thickness in the 500–900 nm range over urban-scale distances (180 m to 4 km), measuring the extinction of radiation emitted from a halogen source. Here we confirm in a laboratory-setup the basic premise that different accumulation-size aerosols generate distinct hyperspectral signatures in this spectral range. Measured hyperspectral attenuation signatures of fine aerosols were comparable to calculated Mie scattering signatures, suggesting that modal aerosol concentrations can be retrieved. A genetic algorithm was adapted to estimate the aerosol modal concentrations from its hyperspectral extinction signature. Retrievals of aerosol concentrations from measured and synthetic hyperspectral signatures indicated a robust algorithm, with an expected retrieval error of 0.2–22% for typical ambient concentrations along an urban-scale open path. The retrieval accuracy was found to depend on the relative aerosol modal concentrations, especially when there is a substantial overlap between the modal spectral signatures.","domain":"optical_engineering"}
{"url":"https://www.cineviewstudios.com/product/kino-flo-4-bank-4ft-continuous-lights","date":"2023-12-05T17:48:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100555.27/warc/CC-MAIN-20231205172745-20231205202745-00646.warc.gz","language_score":0.8558712005615234,"token_count":102,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__35122413","lang":"en","text":"Kino Flo 4 Bank 4ft Continuous Lights – Cineview Studios\nKino Flo’s 4ft 4Bank portable lighting system is reintroduced with a new design. The 4Bank is brighter than a 1,000W soft light, yet draws only 2.6A (120VAC), 50% less than the previous model. New features include new graphics, new color coded connectors and new power switches.\n- 4ft 4bank fixture\n- Mounting plate\n- Extension ballast","domain":"optical_engineering"}
{"url":"https://imatik.com/about-the-machine/","date":"2022-01-25T16:29:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304859.70/warc/CC-MAIN-20220125160159-20220125190159-00295.warc.gz","language_score":0.8295681476593018,"token_count":441,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__213880501","lang":"en","text":"The device takes and processes photos in the RAW format, which maintains the superior image quality.\nEach camera in the machine is calibrated with ICC color profile, which allow to obtain a perfect level of colour reproduction.\nIMATIK uses patented background removal technology, which makes the process extremely reliable.\nThe device uses cutting edge Violet Chip technology, the LED lighting technology, which is the closest to the natural sunlight.\nThree Canon DSLR cameras mounted in the machine, allow to take pictures of the product from three different sides at once. Photos from the side, from above and from below can be taken without manually re-positioning the object during the session.\nDespite it's compact size, IMATIK takes photos corresponding to a distance of 1.5 m. Unique, optical system ensures better perspective of the product being shoot.\nWith simple and intuitive interface, IMATIK can be operated by everyone.watch full video\nUsing IMATIK you receive image files ready to be used in your online shop, immediately. The photos taken are automatically processed by IMATIK software.\nSee how many processes the machine can do for you!\n|Max. object size||H: 60 cm W: 35 cm D: 35 cm|\n|Cameras||Canon DSLR Top view 700D Sole View 700D Side view 7D MK II|\n|Shooting modes||Single, up to 15 pre-defined views, 360° view + top + bottom|\n|Internal image processing||14-bit RAW|\n|Output format||PNG (with transparency), JPG (custom background), unprocessed RAW + PNG mask|\n|ICC color profile||YES separate for each camera|\n|Auto Cropping||YES single image, 360° image modes|\n|Watermark||YES in front, behind object|\n|Auto object centering||horizontal / vertical|\n|Export resolution||Custom resolution, full resolution (as shot)|\n|Dimensions||H: 195 cm W: 180 cm D: 85 cm|\n|Productivity||Up to 40 000 packshots monthly*|","domain":"optical_engineering"}
{"url":"https://xtremetint.com/autotint/3m-tint/3m-automotive-window-film-crystalline-series-2/","date":"2024-03-04T22:07:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476532.70/warc/CC-MAIN-20240304200958-20240304230958-00523.warc.gz","language_score":0.9040141701698303,"token_count":306,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__23289409","lang":"en","text":"- A clear breakthrough in automotive window films. The Crystalline Series rejects more heat than many dark films without changing the appearance of your vehicle, making it the superior choice for comfort.\n- Light tint rejects up to 60% of solar energy and up to 97% of heat-producing infrared rays for the ultimate in comfort.\n- Designed to enhance your view by allowing visible light into your vehicle while keeping heat out, so you can see clearly and safely.\n- Non-metallized window film lets you stay connected with mobile devices, GPS or satellite radio reception without interference.\n- Blocks up to 99% of ultraviolet (UV) light to provide a total Sun Protection Factor (SPF) of 1000 for you and your passengers.\n- Sold and installed by 3M Authorized Dealer Installers, our films are durable, virtually maintenance-free and backed by a limited lifetime warranty.\nThe Crystalline Series features a proprietary, multilayer optical film nano technology that combines over 200 layers in a film that is thinner than a Post it® Note. Improving comfort, protecting vehicle interiors and blocking UV rays are hallmarks of 3M™ Automotive Window Films. 3M was issued the first sun control window film patent in 1966, and our innovative window film products have helped provide protection from the sun’s harmful rays for 50 years. NOTE: Auto tint laws vary by state or province. Please check your local laws or ask your dealer installer for films that meet your local tint laws.","domain":"optical_engineering"}
{"url":"http://sciencejournal.withgoogle.com/experiments/getting-started-with-light","date":"2020-07-15T23:06:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657176116.96/warc/CC-MAIN-20200715230447-20200716020447-00488.warc.gz","language_score":0.9256412982940674,"token_count":1009,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__245174241","lang":"en","text":"Getting Started with Light\nUse the Ambient Light sensor to investigate the light around you.\n1. Find the Light icon and press to open the Ambient Light sensor.\n2. Your phone has a light sensor—can you find it?\nIt’s usually located on the front face of the phone near the top. Try slowly moving your finger across the phone while you watch the sensor card on Science Journal. The sensor card is measuring lux, a unit of illumination. When the sensor card reading is close to 0 lux, you’re covering the sensor.\n3. Move your hand near and far from the sensor.\nWhat do you notice? Make observations in both meter and graph modes.\n4. Investigate the light in your environment. If you’re inside, explore all corners of the room:\nHow do artificial light sources compare to natural light from a window? What happens near a wall, under a table? Where do you find the lowest reading? Where do you find the highest reading? What happens if you place the light sensor at different angles to the light source? Does tilting the phone make a difference?\nIf you’re outside, explore the natural light from the sun and the different shadows it creates.\nWhat’s Going On?\nThe ambient light sensor measures light in lux, a measure of illumination that depends on the amount of incoming light and the area over which it is spread.\nA full moon provides about 1 lux of illumination, a typical lamp-lit living room about 50 lux, classroom lighting and sunrise and sunset about 400 lux, daylight (indirect sun) over 10,000 lux, and direct sun over 30,000 lux.\nLux is an unfamiliar unit for most of us. When we buy lightbulbs, we often shop by watts—but the wattage of a bulb doesn’t tell you how bright a bulb is, only how much energy it uses. Lumens are a better measure for light shopping; they tell you how much light a bulb will actually produce. Lux, meanwhile, tells you how much of that light arrives at a particular area.\nSince light spreads out as it travels, the number of lux dwindles as you back away from a light source, even though the source is still emitting the same amount of light in lumens. An area that is tilted away from a light sources also receives less illumination—which happens to be why the equatorial regions here on Earth are so much warmer than the chilly poles.\nBy the way, the purpose of the light sensor in your phone is to control the light level of the screen, adjusting accordingly to dim and bright environments. Inside the light sensor, a tiny semiconductor responds to incoming light by producing a small but measurable electrical current—a phenomenon known as the photoelectric effect. Similar sensors are used in some streetlights to turn them on when it gets dark outside.\nHere are a few of the many experiments you can do with your light sensor.\nExperiment with light from different sources (incandescent, compact fluorescent, and LED bulbs), or with light reflecting off of opaque surfaces and traveling through translucent and transparent materials.\nMultiple light sources shining on a single object will create multiple shadows—an umbra or total shadow where all the light is blocked, and a penumbra or partial shadow where one source is blocked and another source fills in. How do the light measurements in the various shadows compare?\nMake observations over a longer period of time: What happens if you record the natural light, either through a window or outdoors, in the same place at the same time every day? How does the light change over the course of an hour? A day? A week? A month? A year?\nFor maximum efficiency, solar panels must be tilted at an angle to maximize their illumination by the sun over the course of the day. Can you use the light sensor to determine exactly what this angle would be for your location? Would your result be different at a different time of year?\nIf your light meter is maxing out in full sun, try putting sunglasses or another light filter in front of the light meter.\nPut a single point source of light in a darkened room and measure the illumination at various distances from the light. (A candle makes a good point source, as does a Mini MagliteTM if you unscrew the cap so the small halogen bulb is exposed.) How does doubling or tripling the distance affect the measurement?Light obeys a mathematical relationship known as the inverse square law —as your distance from the source increases, the amount of light arriving at an area decreases in proportion to the square of the distance. Mathematically, the relationship is expressed as 1/r2, where r is the distance from the source. Not just light, but sound, gravity, electric force, and even spray paint obey the inverse square law. Do your measurements seem to confirm the law?","domain":"optical_engineering"}
{"url":"https://www.stateenergyco.com.au/post/fully-transparent-solar-cell-could-make-every-window-in-your-house-a-power-source","date":"2020-03-29T03:07:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370493684.2/warc/CC-MAIN-20200329015008-20200329045008-00150.warc.gz","language_score":0.9297760128974915,"token_count":186,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__97378922","lang":"en","text":"Fully transparent solar cell could make every window in your house a power source\nA Michigan State University research team has finally created a truly transparent solar panel. A breakthrough that could soon usher in a world where windows, panes of glass, and even entire buildings could be used to generate solar energy. Until now, solar cells of this kind have been only partially transparent and usually a bit tinted, but these new ones are so clear that they’re practically indistinguishable from a normal pane of glass. This cell is transparent like glass and uses a much broader spectrum of light than common solar cells. With this technology in the near future it will be possible to charge mobile devices or vehicles. More over with transparent solar cells we could use buildings like skyscrapers to harvest energy. Here is a talk from Michigan State University Prof. Richard Lunt.\nWOW! what an exciting accomplishment cant wait till its available for consumers.","domain":"optical_engineering"}
{"url":"https://www.resistancecoronavirus.com/goggle.html","date":"2021-05-09T03:50:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988955.89/warc/CC-MAIN-20210509032519-20210509062519-00477.warc.gz","language_score":0.8749496936798096,"token_count":147,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__73260828","lang":"en","text":"Use of goggles and protective masks\nc) Perform short-distance operations such as tracheotomy and tracheal intubation for patients with infectious diseases of the respiratory tract. When the blood, body fluids and secretions of the patient may be sprayed, a comprehensive protective mask should be used.\nMedical multifunctional goggles are composed of lenses and frames, and there is no special requirement for the frame material. Developed by using optical resin, polycarbonate (PC) or polymethyl methacrylate (acrylic) as lens material, and adding unique optical crystal materials such as anti-blue light, anti-ultraviolet, anti-optical radiation, and anti-impact, and exclusive special processes. .","domain":"optical_engineering"}
{"url":"https://getyoursportsnews.com/archives/230","date":"2022-01-20T04:45:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301720.45/warc/CC-MAIN-20220120035934-20220120065934-00450.warc.gz","language_score":0.939075231552124,"token_count":308,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__229847811","lang":"en","text":"Spotting rifle scopes are a useful part of any outdoorsman’s gear. With their magnification power, objects that would ordinarily be indiscernible are revealed with excellent clarity, even over long distances. These scopes can be handheld or mounted on a tripod or rifle for accurate viewing during sport or observation.\nSpotting Rifle Scopes Provide an Advantage\nThese scopes allow the hunter the best possible chance of seeing the prey and getting in a good shot. Bird watchers and amateur astronomers can benefit from the clarity of ED (extra low dispersion) glass, which corrects color and provides sharp clarity for long-distance viewing. Some models have zoom capability which allows you to change magnification without changing lenses.\nCoatings give greater contrast between objects for a sharper image. Tripods help steady larger scopes when doing stationary viewing, while some spotting rifle scopes are designed to be more portable. Some can be attached to a camera to act as a telephoto lens which gives greater magnification than standard lenses. When viewing and photographing birds, for instance, these scopes are a versatile tool that make the job easier.\nThe advantages of having spotting rifle scopes when out in the field are obvious. They give the outdoorsman a better idea of what is out there, and increases his or her chances of having a successful trip. They give the best possible view when observing birds and nature, or while star gazing. They are useful for many purposes, and are an indispensable part of an adventurer’s gear.","domain":"optical_engineering"}
{"url":"https://www.puleointl.com/product/replacement-fiber-optic-decorated-mc-gold-for-36-inch-or-48-inch-artificial-christmas-trees/","date":"2020-01-25T16:44:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579251678287.60/warc/CC-MAIN-20200125161753-20200125190753-00206.warc.gz","language_score":0.819959819316864,"token_count":146,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__148241084","lang":"en","text":"Replacement fiber optic decorated MC in gold with LED bulb.\nAvailable for 36 inch or 48 inch artificial Christmas trees.\nHole Diameter: 1 3/4 inches\n- Color wheel\n- Halogen bulb\nBulb size 12V20W MR16 LED, 2 Prongs Push in type\nThis Fiber Optic base is compatible with the following adapters:\n1. YU120050A1 – 1 Prong (L) Shape Connection\nInput: 120VAC 60Hz 12W\nOutput: 12VAC 500MA\nDoes not include AC adapter. ** It is highly suggested when purchasing a fiber optic base it is best to purchase new adapters as they are compatible and will avoid unnecessary shortages.","domain":"optical_engineering"}
{"url":"http://www.imaging.robarts.ca/petergrp/content/mixed-reality","date":"2017-03-29T18:56:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218191353.5/warc/CC-MAIN-20170322212951-00515-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9175247550010681,"token_count":106,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__2680397","lang":"en","text":"Head-Mounted Mixed Reality\nResearch into mixed reality has been accelerated by the commercialization of head mounted displays. Mixed reality visualization is an active area at the Peters lab with devices such as the Oculus Rift DK2, Vuzix AR and Google Cardboard providing stereoscopic vision of 3D Slicer environments.\nWe currently have several methods for displaying stereoscopic images and video. Currently in the lab are numerous high-definition flat-panel stereoscopic displays and a novel autostereoscopic monitor from Dimension Technologies Inc.","domain":"optical_engineering"}
{"url":"https://www.wyvern.co.in/projection-screens/","date":"2024-03-04T08:14:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476432.11/warc/CC-MAIN-20240304065639-20240304095639-00372.warc.gz","language_score":0.9341382384300232,"token_count":286,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__196884930","lang":"en","text":"A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection screens may be permanently installed, as in a movie theater; painted on the wall or portable with tripod or floor rising models as in a conference room or other non-dedicated viewing space. Another popular type of portable screen is inflatable screens for outdoor movie screening (open-air cinema).\nUniformly white or grey screens are used almost exclusively Has to avoid any discoloration to the image, while the most desired brightness of the screen depends on several variables, such as the ambient light level and the luminous power of the image source. Flat or curved screens may be used depending on the optics used to project the image and the desired geometrical accuracy of the image production, flat screens being the more common of the two. Screens can be further designed for front or back projection, the more common being front projection systems, which have the image source situated on the same side of the screen as the audience.\nDifferent markets exist for screens targeted for use with digital projectors, movie projectors, overhead projectors, and slide projectors, although the basic idea for each of them is very much the same: front projection screens work on diffusely reflecting the light projected on to them, whereas back-projection screens work by diffusely transmitting the light through them.","domain":"optical_engineering"}
{"url":"http://goassignmentijdi.lasvegasdentists.us/edge-detection-using-vector-operators.html","date":"2018-10-21T23:05:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583514437.69/warc/CC-MAIN-20181021224001-20181022005501-00420.warc.gz","language_score":0.8489916324615479,"token_count":655,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__222562172","lang":"en","text":"Those who are already well familiar with edge detection and the sobel operator the frei-chen edge detector is using the rgb values as a 3d vector and. Edge detection of color image using vector these operators are applied in color edge detection our proposed operators have better performance for. Expansion and implementation of a 3x3 sobel and prewitt edge detection edge detector in standard sobel operator using the above vector and. Edge direction: unit vector to perpendicular to the edge normal so operators describing edges are expressed using edge detection using the gradient. Presents a new approach to detect step edges with subpixel accuracy the proposed approach is based on a set of orthogonal complex moments of the image kno. Color image edge detection and segmentation: a comparison of the vector angle and the euclidean distance color similarity measures.\nA study on image edge detection using the gradients the gradient vector points in the direction of different edge detection operators are applied to detect. Texture edge detection using the compass operator the overall pattern of the vector edge detection in high-dimensional texture images in a reasonable. Automatic edge detection using vector distance and partial normaliza- - edge detection, color edge detection, vector operations and the edge. The canny edge detection operator was developed by john f canny in 1986 and the gradient is a vector a descriptive algorithm for sobel image edge detection. Optimal edge-based shape detection resenting a shape using the coefficient vector of a fitted polyno- more robust edge finding using an elongated edge operator.\nColor edge detection in rgb using jointly euclidean distance and vector angle the edge detection operators used difference vector edge detector. It is the thesis of this paper that vector-based edge detection operators is the vector edge operators use the essential spectral information and the. Boundary based segmentation (edge detection) vector inner product of the mask coefficients with image operators edge detection by means of.\nDifferent techniques of edge detection in digital image processing gradient vector or the normal of this vector the prewitt operator is based on convolving. Extraction of edge detection using digital image processing using edge operators the edge points set are extracted of direction derivative is the vector with.\nConcept of edge detection edges can be find by one of the any method described above by using any operator after finding edges.\nDifference between “edge detection” and “image i have done edge detection using canny and curve detection by for example sobel operator gives smooth. Edge detection using sobel operator learn more about edge detection image processing toolbox. Cs6640: image processing project 2 filtering 24 edge detection but ltering can also be used to perform other operations such. Implementation of sobel, prewitt, roberts edge architecture for edge detection using different operators of gradient is a vector which can be calculated in. Face detection from images using support vector edge detection, morphological operators and support vector machine used by prominent authors of. Color edge detection using vector order statistics the entropy operator is employed as an edge detector for monochrome as well as for color images. In this paper represented method for edge detection and represent different operator using edge detection in this paper the edge detection is use two technique.Download Edge detection using vector operators","domain":"optical_engineering"}
{"url":"http://mcl.usc.edu/news/2014/10/12/professor-kuos-keynote-speech-at-the-optoelectronic-imaging-and-multimedia-technology-conference/","date":"2017-03-29T17:00:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190754.6/warc/CC-MAIN-20170322212950-00464-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.8994580507278442,"token_count":297,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__228888198","lang":"en","text":"MCL Director, Professor C.-C. Jay Kuo, gave a keynote speech at the Optoelectronic Imaging and Multimedia Technology Conference, part of 2014 Photonics Asia Program, on October 10, 2014, in Beijing International Convention Center, Beijing, China.\nThe title of Professor Kuo’s speech was “Big visual data analysis: challenges and solution strategies”. Due to the huge size and great diversity of visual data, big visual data analytics plays a critical role in applications such as large-scale image/video indexing, search and tagging. In this work, Professor Kuo addressed two competing factors that have a high impact on the performance of a classification system; namely, data diversity and data abundance. He presented two strategies to handle the data diversity problem – data grouping and decision stacking. Once the data diversity problem is well resolved, the solution will benefit from data abundance since more data samples allow a learning-based classifier to offer better performance. Professor Kuo used an indoor/outdoor scene classification problem to show the power of the proposed techniques in handling big visual data.\nThe Optoelectronic Imaging and Multimedia Technology Conference was chaired by Professor Qionghai Dai of Tsinghua University while Photonics Asia was co-organized by the International Society for Optics and Photonics (SPIE) and the Chinese Optical Society (COS). It was the largest annual event showcasing photonics and optical technologies and applications in Asia.","domain":"optical_engineering"}
{"url":"http://m.theinvestor.co.kr/view.php?ud=20170608000906&np=1","date":"2018-06-25T17:57:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267868237.89/warc/CC-MAIN-20180625170045-20180625190045-00160.warc.gz","language_score":0.9046189785003662,"token_count":332,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__52083155","lang":"en","text":"LG Innotek to light up FIFA U-20 game in Suwon\n[THE INVESTOR] LG Innotek said on June 8 that the company’s 10-watt high-power light-emitting diode package was used for the main lights of the Suwon Word Cup Stadium, where the finals of the FIFA U-20 World Cup Korea 2017 will be held on June 11.\nThe high-power LED package emits bright light with power consumption of 1 watt or more, providing optimal lighting that will allow players, spectators and TV viewers to focus on the match, the company said. Its color temperature is 5,000 Kelvin and it is used for sports stadiums, roads and factories.\nLG Innotek developed the high-power LED package with high reliability using its unique high-power vertical chip technology, which enables superior color reproduction of 90 or more in terms of color rendering index, optimal color temperature and high lighting efficiency.\nThe LED package requires about 40 percent less power than metal-halide lighting, according to the firm. At Suwon World Cup Stadium, instead of 2-kilowatt metal-halide lighting, 1.2-kilowatt LED lighting will be used to provide a brightness of 2,200 lux, a higher level required by world soccer’s governing body.\nThe company plans to expand its LED lineup with those for entertainment stages in the future. It also plans to release multicolor products such as a super high-power LED package with 15 watts or 30 watts products.\nBy Song Su-hyun (firstname.lastname@example.org)","domain":"optical_engineering"}
{"url":"https://photographysnaps.wordpress.com/tag/lense/","date":"2019-06-25T18:22:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999876.81/warc/CC-MAIN-20190625172832-20190625194832-00162.warc.gz","language_score":0.927558958530426,"token_count":129,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__100655699","lang":"en","text":"Are you looking for a new awesome lens for your Nikon or Canon DSLR? We invited our friends from Geefts – the gifts for geeks bible – to recommend the hottest lenses for every budget.\nVia Scoop.it – Everything Photographic\nMost people enjoy pictures. People take pictures at birthdays, weddings, family get-togethers, and also holiday trips. However, when you anticipate to take quality pictures in your next event, you should be sure the lens in your favorite camera is perfectly clean. With out a perfectly clean camera lens, your pictures will end up terrible as well as the lens may also become damaged.","domain":"optical_engineering"}
{"url":"https://internationallight.com/instrumentation-sensor-light-sources/lens-end-lamps","date":"2023-03-30T00:51:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949093.14/warc/CC-MAIN-20230330004340-20230330034340-00728.warc.gz","language_score":0.8988687992095947,"token_count":715,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__264470721","lang":"en","text":"Application & Technical Notes\nBelow is technical and application information on ILT's Focused Lens-End Lamps. Many of our lamps can be purchased right from our e-store. To speak with one of our lamp experts, inquire about a customized lamp, or to ask about a sample, contact us using the form below.\nILT offers a variety of sizes and bases in our lens end lamps including miniature krypton, subminiature precision (T-¾ & T-1 sizes), precision midget, precision focused and precision un-based.Adding a lens-end to a miniature lamp increases the output often allowing for use of a lower wattage lamp. The lens gathers light resulting in an intensity increase of up to 10 times at the end of the lamp, as compared to the output of an equivalent lamp without lens, measured at the same point. This phenomenon makes possible a reduction in operational voltage of the lamp resulting in prolonged lamp life.\nThe most popular Lens- End lamps are Vacuum lamps mounted in a smooth or threaded base. However, other lens-end lamps, are available including halogen, argon and krypton gas filled, un-based, wire lead, and midget based lamps.\nThe purpose of the Lens-End is to gather light and project it into a useful direction. These Lens-End lamps by themselves cannot satisfy all requirements of an optical system. The lamps have both a focal length and working plane. The working plane is that area where light distribution is optimized for intensity, uniformity and consistency of light pattern. The working plane is typically located perpendicular to the lamp mechanical axis and at a distance of 0.5-3 millimeters from the lens-end. Figures 1 & 2 show typical working plane light patterns for both the 1/4 inch diameter and 1/2-20 diameter lamps.\nDue to variations in the manufacturing process for these lamps the light pattern will vary slightly from lamp to lamp. A sample of lamps should be tested in any new design to ensure proper operation.To best utilize these Lens-End lamps it is recommended that the area to be illuminated (fiber optics aperture, or light guide) be placed directly into the working plane. For projection of the light at distances exceeding the distance of the working plane, the addition of an external lens is recommended. Using the working plane with an aperture as the source for a larger transfer lens can provide a uniform well-defined beam for illumination of a distant object.\nLens-End lamps are designed and constructed for those critical optical applications that require a miniature light source with high quality glass envelopes and precisely positioned compact tungsten filaments. These filaments are designed to operate at low voltage and high current providing for rugged construction, miniature size and high light output. Many of the sub-miniature lamps are equipped with sturdy coiled, C-6, and CC-6 filaments. Each filament is carefully positioned and secured to the electrodes.\nFabrication of these lamps occurs in atmospherically controlled environments, incorporating rigid production control. Inspection of each unit to stringent quality control standards is mandatory. The end results being quality glass bulbs free of contamination, filaments of consistent shape, and quality bases manufactured to extremely close tolerances.\nMore related resources\n- NDIR Sensor Sources\n- Halogen Sources for Spectral Analysis\n- Neon Indicator Sources\n- Precision and Lens-End Sources\n- Reflectors & Reflector Lamp Assemblies\n- Miniature Light Sources\n- LED Light Sources","domain":"optical_engineering"}
{"url":"https://www.tobstcn.com/article/development-of-grinding-machine-for-sharpening-wrapper-and-binder-knives-used-in-mir-01-cigar-making-machine","date":"2023-06-07T13:02:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653764.55/warc/CC-MAIN-20230607111017-20230607141017-00177.warc.gz","language_score":0.9285691976547241,"token_count":243,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__149130731","lang":"en","text":"With respect to the truing and sharpening of diamond abrasive grinding tools, traditional machining methods are briefly described, and new dressing methods, such as the laser dressing method, are described in detail. It is pointed out that laser dressing of diamond abrasive tools is a green processing method with high efficiency and no environmental pollution. Numerical simulation research on pulse laser dressing of a bronze diamond abrasive grinding wheel was carried out, and a cumulative heat transfer model of laser dressing energy was developed. The temperature evolution law of the bronze bond and diamond abrasive grains dressed by pulsed fiber laser was determined by numerical analysis of the model. An experiment on the laser dressing grinding wheel was carried out; it was found that when the laser power density was 2.52 × 108 W/cm2∼3.36 × 108 W/cm2, the bronze bond materials could be properly removed, and the diamond abrasive grains could be better sharpened. The laser dressing method can achieve the combination of diamond abrasive grinding tool sharpening and truing. The experiment not only demonstrated the correctness and feasibility of the theoretical model but also provided process optimization for research into pulse laser dressing of diamond abrasive grinding tools.","domain":"optical_engineering"}
{"url":"https://www.qdgroup.universite-paris-saclay.fr/photonics.html","date":"2024-04-14T05:03:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00200.warc.gz","language_score":0.9081360101699829,"token_count":701,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__107785503","lang":"en","text":"Coupling to 2 x 106 ultra-high quality factor\nsilicon photonic crystal cavities\nWe have proposed an optimized design for the measurement in transmission of photonic crystal width-modulated line-defect cavities. By controlling the number of holes and rows that separate the cavity from the coupling waveguides, the measured quality factor of the cavity can be tuned to be close to the unloaded one. In the case of a weakly coupled cavity, we have measured an ultra-high quality factor that reaches a value of 2 x 106 .\nRaman emission in silicon photonic crystals\nWe have shown that a deterministic value and measurement of the Purcell factor in a semiconductor microcavity can be obtained by using spontaneous Raman scattering as an internal source. In this case the emitter characteristics are entirely determined by the cavity design and do not depend on uncontrolled random factors, as it is usually the case when quantum dot emitters are used. We derive a theoretical expression for the Purcell factor of the cavity in the particular case of Raman scattering, in very good agreement with the experimental measurement.\nWe have studied the spontaneous Raman scattering in a W1 photonic crystal waveguide on silicon-on-insulator where the lower silica cladding remains. Despite the vertical asymmetry that exists in such a waveguide, we have numerically and experimentally shown that the propagation losses at the pump and the Stokes wavelengths remain low enough to allow a significant enhancement of the spontaneous Raman scattering. In particular, we have observed a reshaping of the Raman spectrum and a more than ten-fold enhancement of the Raman scattering efficiency in a W1 photonic crystal waveguide as compared to a single-mode ridge waveguide.\nQuality factor of Si-based photonic crystal L3 nanocavities probed with an internal source\nWe have investigated the quality factors of silicon-based photonic crystal nanocavities using the photoluminescence of a single layer of Ge/Si self-assembled islands as an internal source. We have focused on membrane-type L3 elongated cavities with or without their lateral edge air holes shifted in position. The photoluminescence measurements were performed at room temperature. We have shown that the quality factor of the fundamental mode observed at a normalized frequency u = a/lambda = 0:25 is strongly dependent on the incident pump power. This dependence is associated with the free-carrier absorption of the photogenerated carriers. The slope of the quality factor vs. incident pump power gives access to the carrier recombination dynamics in these Si-based nanocavities. The measurements indicate that the carrier dynamics is controlled by nonradiative recombination associated with surface recombinations. A surface recombination velocity of 4.8 x 104 cm/s is deduced from the experiments. The spectral red-shift of the cavity modes as a function of incident pump power is correlated to the temperature rise due to thermo-optic effects. The measured temperature rise, which can reach 190 K, is correlated to the value estimated by a thermal analysis.","domain":"optical_engineering"}
{"url":"https://www.expertsafety.co.uk/product-page/pw18-umbra-polarised-spectacles","date":"2024-04-22T13:44:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818293.64/warc/CC-MAIN-20240422113340-20240422143340-00444.warc.gz","language_score":0.7292318940162659,"token_count":125,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__103576557","lang":"en","text":"The Umbra Polarised Spectacle eliminates all reflective glare that hits the lens, reducing eyestrain. The lens provides 99% protection against UV light. Adjustable and extendable arms for a perfect fit.\n- Polarised lens eliminates horizontal reflections and harsh glares\n- Lightweight wrap-around design\n- Adjustable angle allowing for better fit\n- Adjustable length for a secure and comfortable fit\n- 99% UV protection\n- CE certified\nPW18 - Umbra Polarised Spectacles","domain":"optical_engineering"}
{"url":"http://paxtondmoo912.blogocial.com/Eye-Surgical-treatment-7767347","date":"2018-04-23T07:49:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945855.61/warc/CC-MAIN-20180423070455-20180423090455-00419.warc.gz","language_score":0.9590899348258972,"token_count":1327,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__212176316","lang":"en","text":"Eye Surgery has actually ended up being a mainstream technique of vision adjustment, as well as this short article will certainly explain the benefits as well as disadvantages of three different approaches being supplied to the clinical customer.\nLasik Eye Surgery\nLASIK is the acronym for Laser-Assisted In Situ Keratomileusis and also is an eye medical system which completely corrects vision by eliminating a thin layer of the cornea. This procedure functions best on individuals with modest to high degrees of nearsightedness (nearsightedness), low to moderate levels of hyperopia (farsightedness) as well as astigmatism connected with myopia, and that have thick corneas. It is the most widely known medical vision improvement technique.\nPeople with typical eye sight see objects plainly because pictures are brought into a right focal point by the cornea and also lens of the eye. Ideally, the cornea's curvature is uniformly matched to its length in a typical eye. Individuals with astigmatism, nearsightedness or hyperopia have irregularly formed corneas, so the objects seen are not concentrated appropriately. LASIK adjustments corneal shape by specific removal of corneal cells, and also by doing so fixes the eyes' focusing power.\nThere are, nonetheless, risks to LASIK eye surgical treatment.\nThere is a remote possibility of full loss of vision. If this happens, it is usually because the individual had a pre-existing problem which must have precluded the surgical treatment in the first place, such as pregnancy, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with large students are additionally bad prospects for LASIK. Dry eye syndrome will be aggravated by this procedure.\nA couple of individuals grumble that they completely see \"ghost\" pictures, have obscured vision, decreased contrast and also negative evening vision. When LASIK wased initially presented, 5% of patients had post-operative grievances; nevertheless, improvements in the treatment have actually triggered this rate to go down to less compared to 1% if LASIK is performed by experienced experts as well as patients are properly evaluated before surgical treatment. If problems do happen, they can commonly be resoved by a retreatment.\nFDA has approved LASIK laser eye surgical procedure given that 1998. While there are a great deal of pleased clients, there are however no long term researches about its impacts. Understand the constraints as well as the dangers of LASIK eye surgical procedure prior to you sigh for the procedure.\nThough much less popular, these tiny implants can enhance vision in individuals with moderate to moderate myopia without the danger of irreversible eye damages inherent in the cells removal strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter form. Though slightly much less precise than LASIK, they are removeable as well as changeable, so if the individual has an unexpected over- or under-correction, the implant could be removed as well as one more of a different dimension inserted to obtain the wanted adjustment. The implants lie at the edge of the cornea, so the main visual location is entirely undamaged and also undamaged, and the strength of the cornea is undiminished, making it a much better alternative for pilots and those who take part in contact sports where eye injury is a possibility.\nIntacs are unsuitable for severe myopia as well as more than minor astigmatism (1.00 diopters), as the cornea could only be extended until now. If the Intacs are gotten rid of, vision go back to its preoperative level. Other than vision modification, Intacs are likewise used to treat keratoconus.\nIntacs are FDA approved and also 10 year research studies have actually exposed no major problems with Intacs as well as few person problems; however, due to the fact that the procedure takes a lot more training than LASIK, there straight from the source are less eye surgical procedure centers using it. However, the Intacs site provides a list of practitioners in each state, as well a few in Canada, Europe and also Mexico.\nSince lots of people do not intend to run the risk of LASIK as well as Intacs can not assist those with severe vision troubles, intraocular lens implants (IOL) are a new choice authorized by the FDA in 2004 to fix moderate to extreme nearsightedness. The Artisan lens, made by Ophtec, is similar to the sort of lens implant used to recover vision following cataract eye surgical procedure.\nThe brand-new IOL, called the Craftsmen, is meant for only people that have 2.5 diopters or much less of astigmatism.\nThe fabricated lens does not change the natural lens, yet is put in front of it. The main issue found with the dental implant was the steady loss of endothelial cells in the corneas of people who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are necessary in keeping the cornea clear. A three-year research study revealed a regular constant loss of endothelial cells of 1.8 percent a year. At this point, no person could forecast whether this loss will continue at the same price forever, and even its influence on corneal function.\nTo minimize long-term effects of the tool on the corneal endothelium, the FDA is calling for that the brand-new lenses be classified to define that they ought to just be implanted in people whose corneal endothelial cells are thick adequate to endure small cell loss.\nMuch more serious issues were few: retinal detachment (0.6%), cataract advancement (0.6%), and also corneal swelling (0.4%). browse around this web-site The FDA is requiring Ophtec to carry out a five-year follow-up study of its implant clients to better evaluate the post-surgical occurrence of cataract development, retinal detachment as well as various other ophthalmic conditions.\nThe Craftsmen lens is planned to be an irreversible implant.Though it could be eliminated operatively, vision might not always go back to exactly what it was before obtaining the lens. Since it does not affect astigmatism, patients with this trouble may still call for glasses.","domain":"optical_engineering"}
{"url":"https://www.readers.com/anti-glare-computer-glasses.html","date":"2023-02-02T14:20:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500028.12/warc/CC-MAIN-20230202133541-20230202163541-00683.warc.gz","language_score":0.8910133242607117,"token_count":275,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__173508258","lang":"en","text":"Coupon code valid only on purchases made before 3am ET today. Quantities are limited. Coupon code valid on in-stock items only and cannot be applied to prior purchases. Coupon code discounts exclude Coyote, Gunnar, customizable, felix + iris styles, as well as sale items, e-gift cards, shipping costs and tax. Coupon code may not be combined with any other coupon codes, vouchers, discounts, or offers except reduced shipping costs with minimum purchase requirement.\nKiss your headaches and eye fatigue goodbye with a pair of anti-glare blue light glasses. In a variety of styles, these glasses for computer or other digital device use can help you work more comfortably at home or the office.\nDesigned to help reduce eye strain from glare and blue light exposure over an extended period of time like a work day.\nAnti-glare coating reduces the impact of screen brightness so you can rid yourself of headaches and eye discomfort caused by glare!\nShop all of our blue light glasses to help protect your eyes from blue light emitted from digital screen use.\n*Lenses do not block all blue light. Lenses help reduce the amount of potentially harmful blue light transmitted through the lens and varies between lens types. Harmful blue light refers to the 415-455 nanometer range of the visible light spectrum.","domain":"optical_engineering"}
{"url":"http://www.woodlandseye.com/","date":"2015-01-28T14:06:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-06/segments/1422121961657.12/warc/CC-MAIN-20150124175241-00114-ip-10-180-212-252.ec2.internal.warc.gz","language_score":0.872179388999939,"token_count":321,"dump":"CC-MAIN-2015-06","global_id":"webtext-fineweb__CC-MAIN-2015-06__0__166852467","lang":"en","text":"Woodlands Eye Associates\nNOW AVAILABLE – NEW Bausch + Lomb ULTRA™ contact lenses with MoistureSeal™ technology. Try these new lenses today and break the cycle of discomfort. Ask us today about a free trial and how to upgrade your contact lenses with NEW Bausch + Lomb ULTRA™ contact lenses with MoistureSeal™ technology. We are excited to offer the latest in contact lens technology – NEW Bausch + Lomb ULTRA™ contact lenses with MoistureSeal™ technology.\nCall today to schedule your eye appointment and try these new lenses.More\n|The product knowledge and expertise of our long-term opticians is priceless. Experienced opticians can assist you in your selection by discussing the pros, cons and performance of the products based on your specific need. Our state-of-the-art, on-site optical lab produces fast, accurate, one-day services on most eyeglasses. Custom tinting, ultraviolet protection, scratch resistant coatings and more are available. Both of our offices have easy access, large showrooms, and prompt service. Convenience, tremendous choice and a price you can love. More|\n|AIR OPTIX® COLORS contact lenses are the newest addition to the AIR OPTIX® family of breathable* contact lenses that lets you focus on your life, not your contact lenses. They provide stunning eye color and outstanding comfort. And their monthly replacement schedule is easy to remember. Don't forget we have Rebates and Ordering online. More|","domain":"optical_engineering"}
{"url":"https://customautomotiveledlight.kinja.com/the-means-of-reflector-front-lights-help-dodge-ram-1832006289","date":"2020-07-14T20:02:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657151197.83/warc/CC-MAIN-20200714181325-20200714211325-00406.warc.gz","language_score":0.9364985823631287,"token_count":733,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__98667783","lang":"en","text":"Prior to we really study LED headlight light bulbs, we reached discuss front lights housings. Let’s start with a reflector.\nWhat is a reflector headlight? Take the reflector front lights from a Dodge Ram as an instance. Due to the fact that the RAM includes three various headlight options consisting of a projector and a reflector.\nSo, it’s an excellent option to reveal individuals the distinction. A reflector is engineered to aim the light from the light bulb inside the housing in a various direction for every flat item of chrome plastic on the inside. The mix of all these different slats and the placement of the light bulb inside the housing is what develops your beam pattern. Some reflector led lights for car headlights are crafted far better than others.\n- For instance, 2000 4, 5 & 6 Dodge Ram that used a nine thousand seven light bulb is terrible! no matter if you place a halogen bulb, HID, LED, the only point that works in that situation is a projector retrofit.\nThe Dodge Ram, the Toyota Expanse and also some Ford cars have a wonderful light beam patterns right out of the box. So, getting the right LED headlight bulb in some different reflector real estates can create a spectacular beam pattern that works as well as doesn’t blind other drivers.\nThe means of the reflector front lights works is on the back side you have an opening as well as that opening is for a halogen light bulb. The halogen light bulb has a couple pins coming off the connector on the back side which are positive and unfavorable, and they go via into the glass section of the light bulb where there’s a wire injury filament. When your front lights circuit is turned on the filament shines to incandescent, offering it the name an incandescent light bulb.\nFor the Dodge Ram, you can likewise obtain this projector front lights. It looks similar but because it doesn’t rely on every surface inside the front lights housing to be a reflective surface, often they repaint in black for style. The projector is characterized by this big glass circle, what it does is it refracts as well as concentrates the light from you right light bulb they utilize the very same kind of light bulb.\nSometimes, you can obtain a halogen incandescent light bulb projector much like the bulb from the various other headlight or often CONCEALED or LED. I have actually obtained a headlight, yet it’s already taken apart, what you wind up with inside the front lights housing is sometimes it separate reflector for high beam and afterwards your projector for the reduced beam of light. On the rear end of the housing, your bulbs place much like they would certainly on a normal front lights, but the projector has this huge bowl on the back side. In a reflector, the bulb sticks inside the bowl below; on the projector, the dish is on the rear end as well as all the light bounces off the smooth surface inside the projector bowl and obtains concentrated beyond this projector.\nOne LED headlight light bulb that functions in a reflector might not function in a projector. If an LED headlight bulb functions well in a projector, like this one, possibilities are it’ll most likely function good in a reflector like the very first one I revealed you, but oftentimes that’s not the case work out means around. Some business even go so far as to make a projector particular LED headlight light bulb, often they work, in some cases they do not.","domain":"optical_engineering"}
{"url":"http://www.eyedocjay.net/contact-lenses.html","date":"2017-09-25T00:32:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818690268.19/warc/CC-MAIN-20170925002843-20170925022843-00291.warc.gz","language_score":0.976611316204071,"token_count":287,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__31057499","lang":"en","text":"For over a year we have been working with a new lens from Ciba, the Night and Day lens. It is designed for one month of continuous wear. You can wear it from the first of the month and not take it out until the 30th. As much as we have never liked sleeping in contact lenses, this has turned out to be a fantastic new lens. The plastic is a unique blend of gas permeable plastic and soft lens. It has also been a fantastic lens for dryness, and other problems. Over half of our patients who wear the lens, do not sleep in it, but use it for taking care of other problems.\nThere is also a new bifocal soft lens that shows promise. There is a new bifocal soft lens that is doing very well. After all of our disappointments with all the other makes that we have tried, we now have one that works the majority of the time. It still is not perfect, but it is so much better than any lens we had previously tried, that we can now feel confident in offering a bifocal soft lens!\nAs mentioned before, we are working on a new lens for keratoconus. This lens is designed with a constantly changing back curve to better fit the keratoconic cornea for better comfort. But what is really unique is the compensating curve of the front the lens to allow for excellent vision.","domain":"optical_engineering"}
{"url":"https://www.thevisioncouncil.org/members/interest/member-video-update-understanding-recent-udi-regulations","date":"2020-08-09T22:32:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738595.30/warc/CC-MAIN-20200809222112-20200810012112-00073.warc.gz","language_score":0.8761580586433411,"token_count":247,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__60727130","lang":"en","text":"Member Video Update: Understanding Recent UDI Regulations\nMember Video Update: Rx Lenses Exempted from UDI Requirements\nIn the latest installment of The Vision Council's Member Video Update series, available on our LinkedIn page, we're joined by The Vision Council's senior technical director and Lens Division liaison, Michael Vitale, to discuss the recent regulatory victory exempting prescription lenses from the FDA's UDI requirements.\nFor details on the FDA exemption of prescription lenses from UDI requirements, visit thevisioncouncil.org/udi.\nFor UDI guidance specific to members in The Vision Council's Sunglass & Reader Division, Eyewear & Accessories Division, and Low Vision Division, or for more information on The Vision Council's other Federal legislation and regulation efforts, visit thevisioncouncil.org/federal.\nThe Vision Council's Member Update video series presents the latest news and announcements from across the organization and throughout the industry. Covering everything from new member benefits and opportunities to breaking news and market updates, be sure to follow The Vision Council's LinkedIn page so you don't miss a thing.\nQuestions on the video series? Contact Jessica Lutz, The Vision Council's marketing and communications manager.","domain":"optical_engineering"}
{"url":"https://www.ikea.gr/en/products/lunnom-led-bulb-e14-210-lumen-dimmable-chandelier/60539238/","date":"2024-02-22T08:40:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473735.7/warc/CC-MAIN-20240222061937-20240222091937-00104.warc.gz","language_score":0.849798858165741,"token_count":348,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__71470038","lang":"en","text":"Reminiscent of old filament bulbs but made with energy-saving LED. This clear bulb in a retro style spreads a warm white light and is perfect for lamps with a transparent or latticed shade.\nDiameter: 35 mm\nLuminous flux: 210 lm\nPower: 1.7 W\nPackage quantity: 1 pack\nLength : 11 cm\nWidth : 4 cm\nHeight : 4 cm\nGross Volume : 0.2 l\nSpecial waste handling may be required. Please contact your local authorities for more information.\nThe light bulb can be used in temperatures from -20°C till +40°C.\nThe light from this LED bulb feels as strong as the light from a traditional 22W incandescent bulb.\nDimmable bulbs can be used both in dimmable and non-dimmable lamps.\nDimmable lamps require dimmable bulbs.\nRemember to choose a bulb that fits in your lamp. Lamps usually have a large or small socket and our range has bulbs that fit in both types.\nSafety and compliance\nThis product bears the CE mark.\nThe colour rendering index (CRI) of a light bulb defines how well the light reflects true colours. A value above 80 is good and close to a natural light.\nLED light bulbs are both energy efficient and long-lasting, with a lifetime of approximately 15,000 hours – two benefits that allow you to save money on both bulb replacements and electricity.\nLED light bulbs are available with different colour temperatures that make the light feel more or less warm. This particular light bulb emits a warm light (2,200 Kelvin).\nIlluminates at full power immediately when you turn the lamp on.","domain":"optical_engineering"}
{"url":"https://web-stil.info/lessons-learned-about-3/","date":"2023-10-04T23:09:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511424.48/warc/CC-MAIN-20231004220037-20231005010037-00008.warc.gz","language_score":0.9436273574829102,"token_count":541,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__26334259","lang":"en","text":"How to Select the Ideal Fiber Optic Cable Firm in Austin\nA group of people find it daunting to buy goods today. Due to increase of various contractors manufacturing common good then people experience challenges to choose the best one. Fiber optic contractors are uncountable in the industry. Here you are required to be meticulous to ensure you choose the firm selling the best fiber optic cables. It’s not easy to select the best fiber optic firm. If you are on the list of the persons who experience difficult time when choosing the ideal fiber optic firm then you must know that there are aspects that can help you with the process. Discussed on this article are few factors that can help you effectively when hiring a fiber optic firm.\nStart by looking at the cost of the fiber optic cables. Different fiber optic contractors sell them at different prices. Ensure you don’t use extra cash on this cables. Negotiating is allowed. Set some free time aside to go to multiple companies and find about the worth of these cables. At the end of the day you cannot luck at least one firm with a reasonable price.\nThe durability of the fiber optic is another aspect to pay attention to. There are firms producing fake products. If you talk to people you will find that they don’t want to go to the market with the same purpose. Choose a company that makes permanent firm. However, you cannot look at the available fiber optics in the market and tell if they are durable. Only by finding more about the characteristics that define a permanent fiber optic you can not tell of the fake or durable one. The Internet can be of great benefit here. Therefore, once you get to the store start by identifying the durable fiber optic. Durable fiber optic cables can serve you for an extended duration.\nThe repute of the fiber optic firm must be deliberated. Work with a famous firm consider their repute. Start by inquiring if the fiber optic contractor is well-rated. The contractor selling the ideal fiber optic contractor is well rated. Therefore, be certain that if you want to purchase the best cable there is then you must choose a well-rated contractor. Only the past clients in the firm can give you more information regarding the status of the firm. Facebook and other online pages can as well give you more details since you can read more about what clients have to say.\nPonder the dimensions of the fiber optic cable. The need should send you to the market. If you are certain with the way you want to use the cable be sure you cannot make a mistake in the market. Inform the firm of the magnitude of the cable they should prepare for you at that time.","domain":"optical_engineering"}
{"url":"http://esurveying.net/land-survey/lidar-rental-services","date":"2017-11-20T11:55:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806030.27/warc/CC-MAIN-20171120111550-20171120131550-00467.warc.gz","language_score":0.950585663318634,"token_count":351,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__29863052","lang":"en","text":"LiDAR stands for Light detection and ranging. This is an advanced technique which is becoming popular at a very fast pace. The reason is, it is fast, accurate, light and required very less manpower. This finds wide applications including re-creating of existing 3D models, surveying and mapping. These instruments are much appreciated where the human accessibility to the site is difficult and sometimes risky to the field staff. This instrument captures the 3D data which are then processed to create models.\nLiDAR has wide applications; these different types of applications require scanners with varying specifications based on the data's purpose, the size of the area to be captured, the range of measurement desired, the cost of equipment, and more.\nThere are two types of LiDAR capturing techniques, Airborne LiDAR and Terrestrial LiDAR.\nAirborne LiDAR (also referred as airborne laser scanning) is a laser scanner, while attached to a plane during flight, creates a 3D point cloud model of the landscape. This is currently the most detailed and accurate method of creating digital elevation models, replacing photogrammetry.\nTerrestrial applications of LiDAR (also referred as terrestrial laser scanning) happen on the Earth's surface and can be both stationary and mobile. Stationary terrestrial scanning is most common as a survey method, for example, in conventional topography, monitoring, field progressive activities the 3D point clouds acquired from these types of scanners can be matched with digital images taken of the scanned area from the scanner's location to create realistic looking 3D models in a relatively short time when compared to other technologies.\nWe offer rental services of these instruments along with processing and presentation in the required format as required by you.","domain":"optical_engineering"}
{"url":"https://korvustech.com/thin-film-thickness/","date":"2024-03-01T20:54:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475701.61/warc/CC-MAIN-20240301193300-20240301223300-00104.warc.gz","language_score":0.8514584302902222,"token_count":1400,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__56511623","lang":"en","text":"In thin film technology, thickness measurements are a fundamental property of the form and function of the deposited film. Manufacturers must be able to measure and control the thin film thickness for use in a variety of specific capacities.\nTechniques to apply thin films to a substrate surface within a particular thickness range include physical vapour deposition (PVD coating), such as e-beam evaporation, and chemical vapour deposition (CVD coating), such as plasma-enhanced deposition. Each offers different levels of control and surface morphology for the film material.\nThe Importance of Thin Film Thickness\nThe properties of a material’s performance are closely linked to the film thickness measurements. The thickness of the material application can affect its thermal, electrical, mechanical, and optical properties. The type of thin film deposition system impacts the final material thickness measurements, so it’s important to select the right deposition system for the application.\nImpacts on Performance and Functionality\nSo how do thin film thickness measurements affect the performance of thin films? The thickness of thin films is one aspect of many that impart properties to the material.\nOptical coatings, superlattice structures for quantum phenomena, tribological coatings, and other bulk substrate coatings target different thicknesses and structural properties during thin film deposition. The thin film properties of each can vary with the thickness compared to the application method of monolayer, nanoscale, multilayer, and superlattice deposition.\nBy applying thin films in individual layers, you can affect the properties of your materials. This can include hard coatings, anti-reflective coatings, conductive coatings, and coatings to reduce friction and corrosion.\nHow Do You Determine the Thickness of a Thin Film?\nWhen most film coatings are only up to a few nanometers thick, how is thin film thickness measured? Various techniques exist to measure a thin layer of material film over a bulk form, including X-ray reflectivity, stylus profilometry, interferometry, scanning electron microscopy, energy dispersive spectroscopy, ellipsometry, and other techniques. Some of these techniques are destructive, while others are non-destructive.\nWhen considering your method selection, non-destructive techniques and tools include:\n- Ellipsometry for a wide variety of materials on a smooth material that will reflect light to measure the refractive index (RI) and extinction coefficient, often used for semiconductor devices and electronics\n- Reflectometry for single or multilayer thin films that will reflect light in a spectrum to determine thickness and RI\n- X-ray reflectivity (XRR) for multilayered thin films to measure thicknesses of up to 100 nm\n- Scanning electron microscopy (SEM) to measure semiconducting films with a thickness range between 100 nm to 100 μm\n- Transmission electron microscopy (TEM) to measure either conducting or semiconducting thin films in single or multilayer coatings and thickness measurements up to 100 nm\nOther techniques require masking on the surface of the bulk material or using cutting tools to remove portions of the film and bulk materials so that you can measure the thickness of the coating.\nTwo common destructive measurement techniques are stylus profilometry and interferometry.\nIn both methods, you must have a uniform film application to ensure accuracy in measuring film thickness. Additionally, interferometry requires the surface to be highly reflective to accurately measure the interference fringes.\nTechniques for Controlling Thin Film Thickness in Deposition Processes\nWhether applying decorative coatings or more advanced materials for optical instruments, integrated circuits, or thin film batteries, several application techniques are available to manage the application thickness for thin films.\nChemical vapour deposition (CVD) methods include low pressure deposition, plasma-enhanced deposition, and atomic layer deposition. Physical vapour deposition (PVD) methods include thermal evaporation deposition and sputtering deposition.\nBefore applying thin films using either chemical deposition or physical deposition, you can test your settings using a quartz crystal. Coating and monitoring the crystalline structure of a piece of quartz oscillator crystal can allow you to take specific measurements for evaporation deposition processes.\nUsing chemical deposition, you can avoid differences in thickness that can come from spin coating or some physical deposition methods.\nIn-Situ Deposition Controls\nWhen it comes time for the deposition method selection of a thin film on a material, you must consider factors like surface roughness and elemental composition of the film and the substrate to decide how to control thin film thickness.\nWhether you want to use pulsed laser deposition for a growth mode at the atomic level or a vacuum thermal evaporation technique, different in-situ deposition control tools are available.\nPlasma emissions monitoring uses plasmonic devices in magnetron sputtering deposition to measure the deposition of oxide and nitride films on pure metal substrates.\nAn optical monitoring system (OMS) is a process that allows real-time monitoring of each layer’s thickness when applying multilayer thin films. It can monitor a substrate directly or use a reflection or light transmission through a witness chip to monitor the surface diffusion indirectly.\nYou may need to test samples of coated parts to ensure accurate thin film thickness during application. How thick are thin films? For example, molecular beam epitaxy should leave an ultra-thin film that is only one molecule thick for each layer. If you made three layers, then depending on the original surface roughness of the substrate, the thin films applied should be approximately three molecules thick.\nPost-deposition controls use surface science to determine if the elemental composition of the thin film reached the appropriate thickness and didn’t exceed the required parameters for your coating job.\nWhat’s Best for You?\nKorvus Technology uses the most advanced thin film deposition systems. Based in the UK, we make the HEX Series thin film system that utilizes fission magnetron sputtering, ORCA low-temperature evaporation, TAU electron-beam evaporation, and TES thermal boat evaporation.\nContact us today to learn more about the HEX Series thin film system and how to select the right deposition method to control thin film thickness for your upcoming projects.\n Kumar, Sushil & Aswal, D.. (2020). Thin Film and Significance of Its Thickness. doi: 10.1007/978-981-15-6116-0_1.\n A. Piegari & E. Masetti. (1985). Thin Film Thickness Measurement: A Comparison of Various Techniques. Thin Solid Films. 3-4:124. 249-257. doi: 10.1016/0040-6090(85)90273-1.","domain":"optical_engineering"}
{"url":"https://rexp2research.com/microscopy-services/","date":"2022-05-20T22:34:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662534693.28/warc/CC-MAIN-20220520223029-20220521013029-00050.warc.gz","language_score":0.8600326180458069,"token_count":659,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__302643599","lang":"en","text":"Microscopy is the bedrock of many materials investigations. To offer quick turnaround microscopy services, REXP2 Research LLC maintains in-house optical microscopy capabilities and, working with outside laboratories, can specify, manage, and analyze Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), micro-Raman, and surface topography investigations. The table at the end of this page lists all in-house imaging capabilities. All in-house instruments have cameras for capturing color images and video. We use ImageJ and Adobe Photoshop as well as custom Python code for image analysis. Below is an example of how using multiple optical imaging modes can quickly reveal the condition of a surface and causes of damage or lack of performance.\nIn many cases, optical microscopy can reveal surface details of significance on a part without having to resort to more costly SEM. We use multiple imaging modes to extract the most information from your specimen. Our in-house Differential Image Contrast (DIC) or Nomarski microscopy capability provides three dimensional contrast to flat specimens, capturing height and depth information. When coupled with bright field and dark field imaging, this provides a more complete analysis of the surface. The example shown in the micrographs above is an electrical contact The bright field image shows wear and corrosion, but does not really provide much information on the extent of wear resulting from repeated sliding insertion and removals. Bright field, the most common optical imaging mode, provides little out of focus-plane information. The dark field image combined with critical focusing on the Nomarski image establishes that the corrosion is in-fact on top of the contact substrate. The Nomarski contrast image then reveals the surface topography of the wear grooves, showing much more extensive damage than anticipated by the simple bright field image. Thus, corrosion appears to be a continuous process and sliding wear is an intermittent process. This specimen was not birefringent. However, if this specimen or its corrosion products showed birefringence, e.g., an alpha-titanium or graphitic substrate, polarized light microscopy (PLM), a capability of our company, would have provided a fourth imaging dimension for analyzing this problem.\nIn some alloys, microstructures are revealed with Nomarski contrast or polarized light on polished sections without etching. This is particularly the case when both hard and soft phases are present.\nRelevant blog postings\nIn-house microscopy capability matrix\n|Technique||Transmission (Diascopic)||Reflection (Episcopic)||Applications|\n|Bright field||✓||✓||Metallography, thin sections|\n|Dark field||✓||✓||Metallography, thin sections|\n|Differential image contrast (DIC, Nomarski)||✓||Surface relief, wear scars, corrosion, failure analysis|\n|Polarized Light||✓||✓||Metallography, graphite, crystal orientation, texture|\n|Phase contrast||✓||Liquids with particles or microorganisms|\n|Stereo||✓||✓||Failure analysis, wear, corrosion|","domain":"optical_engineering"}
{"url":"http://www.lvxiny.com/xingxing-Products-2609806/","date":"2020-02-20T20:19:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875145282.57/warc/CC-MAIN-20200220193228-20200220223228-00028.warc.gz","language_score":0.8383745551109314,"token_count":278,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__83817700","lang":"en","text":"Monocular metallographic microscopes are widely used in schools, laboratories of industrial and mining enterprises to identify and analyze the structure of various metals and alloys, and to conduct general metallographic research on heat-treated materials. The microscope image is clear, the field of vision is wide, and the overall design conforms to human-machine functions, suitable for long-term operation.\nConventional metallographic microscope, because it is inverted, is suitable for irregular or large specimens, used to identify and analyze the structure of various metals and alloy materials; the quality of castings; the inspection of raw materials or after material processing Analysis of metallographic structures; and research on surface phenomena such as surface spraying and cracks. Widely used in factories, laboratories and teaching and research fields. Technical Parameters:\n1. Structure: Monocular Inverted 3 Objective Converter\n2. Total magnification: 100 ×-1250 ×\n3. Dividing eyepiece: 10 × flat field zoom, 0.1 mm grid value\n4.Double-layer mechanical stage 160 × 140 mm Movement range 70 × 50 mm Cursor grid value 0.1 mm\n5. Focusing mechanism: Coaxial coarse and fine movement lifting range 30 mm Fine adjustment grid value 0.002 mm\n6. Lighting system: halogen lamp 20W / 6V brightness adjustable","domain":"optical_engineering"}
{"url":"https://automotiveng.ng/volvo-wants-to-turn-your-entire-windshield-into-a-head-up-display/","date":"2023-03-28T18:07:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948868.90/warc/CC-MAIN-20230328170730-20230328200730-00384.warc.gz","language_score":0.9452093839645386,"token_count":288,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__188996466","lang":"en","text":"For as long as we can remember, Volvo has been obsessed with automotive safety. This is, after all, the company that helped to popularize retractable three-point seat belts.\nIt’s also the company that conducts some of the most extreme crash tests in the industry. Now, Volvo Cars have announced an investment in Spectralics, an optical and imaging technology startup. This move comes via the company’s venture capital investment arm known as the Volvo Cars Tech Fund. Volvo’s investment will give the Swedish automaker access to groundbreaking technologies that could transform the in-car experience.\nOne of these technologies could enable the largest head-up display seen in the industry so far.\nIsraeli-based Spectralics has a background in aerospace technology development, so it’s perhaps not a great surprise that the company has come up with a multi-layered thin combiner (MLTC) solution with a thin optics ‘film’ that can see through surfaces of various sizes and shapes.\nThe tech could be used to overlay images across a vehicle’s entire windshield. This would dramatically widen the driver’s field of view and virtual objects can be superimposed onto the actual environment perceived by the driver.\nConsidering that current head-up displays are around 10 inches in size, this could be a huge step forward.\nChat With Automotiveng\nAdd a comment","domain":"optical_engineering"}
{"url":"http://dallastppu000.blogkoo.com/2-considerations-you-do-not-understand-when-it-comes-to-lasik-eye-surgical-treatment-7249886","date":"2018-06-21T02:10:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864019.29/warc/CC-MAIN-20180621020632-20180621040632-00436.warc.gz","language_score":0.9548293948173523,"token_count":890,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__79454504","lang":"en","text":"2 Considerations You Do Not Understand When It Comes To LASIK Eye Surgical TreatmentThe eye can be taken a look at with relative ease as to both its function and its structure. A practical assessment includes the capability to move in the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be checked in several methods. The client might be asked to identify illuminated letter or items of differing sizes on exactly what is referred to as the Snellen chart.\nOn the other hand, the assessment of the structural part of the eye might be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In specific illness, particularly in glaucoma, the tension in the eyeball is increased noticeably.\nNevertheless, it should be well kept in mind that a patient with an eye issue might have other problems too. Typically other physical conditions are primary and impact the eye as a effect. The appearance of the eye can inform the physician and the patient to problems in some disturbances of other parts of the body even prior to other signs provide themselves.\nOne's dependence on sight is emphasized when one deals with a short-lived or possible permanent loss of this essential sense. When corrective procedures are sought, particular forms of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some people are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgical operations were developed to motivate decreased usage of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nEssentially, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another kind of vision correction. The only distinction is that with this kind of surgery, one's vision is corrected permanently.\nWith page LASIK eye surgery, the refractive errors in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea using a blade understood as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, permitting much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgery, there are still disadvantages that individuals should know. Most likely, the main reason this type of eye surgical treatment has ended up being well accepted is due to the fact that the majority of its cases had actually been effective.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation applied to the most delicate part of the eye\nDue to the fact that LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate parts of the eye, the majority of people state that the operation index can be very risky.\nTo puts it simply, a easy mistake might nearly cause an individual's lifetime loss of sight. It is essential to consider numerous aspects prior to deciding whether LASIK eye surgery is the right corrective measure one has to undergo.\n2. It is not a best treatment\nLASIK eye surgery may fix your vision however visit site it does not necessarily imply that it can provide you a perfect vision. Even if statistical reports reveal that 70% of the patients might have 20/20 vision, this does not always indicate they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the perfect eye surgery the method the majority of people view it\nConversely, the assessment of the structural part of the eye may be made in several ways. It should be well kept in mind that a patient with an eye issue may have other issues. Often other physical conditions are primary and impact the eye as a effect. The look of the eye can signal the doctor and the patient to difficulties in some disruptions of other parts of the body even before other signs present themselves.\nLike its tangible counterpart, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://b-sens.be/","date":"2023-01-31T23:27:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499891.42/warc/CC-MAIN-20230131222253-20230201012253-00448.warc.gz","language_score":0.8691611289978027,"token_count":218,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__94625339","lang":"en","text":"B-SENS is a spin-off company from the University of Mons in Belgium founded in 2016.\nIt capitalizes more than 20 years of intensive research and development activities at the forefront.\nB-SENS develops OEM temperature and strain sensors based on optical fiber gratings. These full sensing solutions encompass cascaded Bragg gratings in telecommunication-grade optical fiber,\ntheir specific packaging for the target application, multi-channel spectrometer-based interrogator(s) and turnkey read-out software providing real-time data analysis and communication.\nB-SENS sensing solutions are the ultimate choice for the reliable monitoring of numerous assets including furnaces, machines, buildings, aircrafts, wind turbines, among many more applications. Our team of experts looks forward to discuss with you and meet your requirements.\nRailway traffic monitoring\nWant to get in touch with our team? Leave us your message!","domain":"optical_engineering"}
{"url":"https://support.kaiterra.com/calibrate-the-tvoc-sensor-in-your-laser-egg-chemical","date":"2024-02-29T02:19:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474775.80/warc/CC-MAIN-20240229003536-20240229033536-00284.warc.gz","language_score":0.8814306855201721,"token_count":182,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__16246827","lang":"en","text":"Installation Guides and Resources\nKaiterra Web App\nCustomized Solutions (Kaiterra Square)\nHow to calibrate the TVOC sensor in your Laser Egg+ Chemical\nTo calibrate your Laser Egg+ Chemical's TVOC sensor, follow the steps below:\n- Turn the device off then on.\n- Take the device outside, where it'll have access to clean, fresh air. For the first five minutes after turning on, the Laser Egg+ Chemical will display the message: 'TVOC sensor warming up.'\n- After the sensor has warmed up, remain outside for a few more minutes so your Laser Egg+ Chemical can set a baseline TVOC value.\nFor devices that are always plugged in and turned on, you're device will not need to be manually calibrated again. If you do turn your device off, follow the above steps again to set a TVOC baseline value.","domain":"optical_engineering"}
{"url":"https://islamicworlduniversities.org/stellenbosch-university-south-africa-alex-muthua-wants-to-help-improve-facial-recognition-technology/","date":"2024-02-21T10:39:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473472.21/warc/CC-MAIN-20240221102433-20240221132433-00575.warc.gz","language_score":0.9536869525909424,"token_count":571,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__90532351","lang":"en","text":"South Africa (Stellenbosch University) Alex Muthua wants to help improve facial recognition technology\nFacial recognition technology is used in many different areas – from airports, retail stores, healthcare, law enforcement, and marketing to banks – to identify people through images and videos of their faces. However, a drawback of this technology is that it does not accurately recognize the faces of people with highly pigmented skin tones.\n“One way to enhance the facial recognition of people with darker skin is to incorporate the portion of the infrared spectrum (the near-infrared part) that electronic sensors can perceive,” says Alex Muthua, who received his Master’s degree in Electronic and Electrical Engineering on Wednesday (7 December 2022) at Stellenbosch University’s December graduation.\nAs part of his study, Muthua explored how infrared light could help to improve the facial recognition of people with a highly pigmented skin tone.\n“Individuals with highly pigmented skin appear darker in visible light images, which means that there is less light information available in the image on which to perform facial recognition. By adding infrared, one can increase the dynamic range of the intensity values, which in turn aids the face recognition system.”\nAccording to Muthu, most digital cameras have a filter that blocks out the infrared light needed for this facial recognition. Using a camera with the filter already removed, Muthua took 9 000 images of 500 individuals with highly pigmented skin in different light spectra – visible, near-infrared, and a combination of the two (full-spectrum).\nThis way, he could augment existing datasets with images of highly pigmented individuals. Muthu points out that there is typically a bias in these datasets, with more photos of light skin pigmentation represented than darker skin pigmentation. These datasets also don’t contain infrared images.\nHe also assessed the impact of narrow and wide cropping, different facial orientations, and sunlight and shaded conditions.\n“We found that using infrared light, the faces of people with a highly pigmented skin tone could be recognised with greater accuracy than using only visible light,” says Muthu.\nHe also fine-tuned an existing face recognition algorithm. He inspected the activation maps of an available convolutional neural network, a machine-learning architecture used primarily for image processing. This was done to determine the essential features of facial recognition for people with highly pigmented skin.\n“We found that the nose area appears to be the most important feature for facial recognition compared to the chin and forehead.”\nMuthu says as face recognition technology continues to grow, its performance must be improved because any bias or disparity may be detrimental to its advancement and potential use.","domain":"optical_engineering"}
{"url":"https://ilsgroup.in/","date":"2024-04-13T19:16:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816832.57/warc/CC-MAIN-20240413180040-20240413210040-00275.warc.gz","language_score":0.9237740635871887,"token_count":382,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__137855344","lang":"en","text":"An in-house research and development and design department combined with its unmatched technical knowledge allow Ideal Lighting Systems (ILS) to continuously define new trends in lighting. The company’s end-to-end approach; from idea to implementation and service, its wide network of partners and flexibility give ILS the unparalleled opportunity to realize virtually any lighting vision.\nILS has been rising to become the largest manufacturer of industrial luminaires in India. In order to implement the right lighting solutions for our clients, our team of experts relies on a number of proprietary tools and approaches. ILS is a proven innovator in the fields of design, technology and environmental responsibility. The latest LED technology based on our own R&D.These tools; based on our extensive experience, high-quality products and the most modern technologies empower ILS to deliver lighting solutions for all types Industrial lighting applications.\nILS is manufacturer of High Quality LED lights which saves Energy through its innovative technology. ILS has been excelling in the field of lighting solutions and since then, we have gained confidence and acceptance from well known industries, Architects and Electrical Consultants. We are specialised in high power LED Lighting & Lighting Design, through our independent innovation. We assuring high efficient & reliable LED lighting solution to the nation.\nWe shall be amongst premier Energy saving companies by:\n▢ Leveraging Science to deliver new and innovative offerings.\n▢ Enhancing values to our customers.\n▢ Developing the new innovative thermal management in lighting systems.\n▢ Making long term relationship with customers through providing best pre-post selling services.\nSave Planet through energy saving concept by providing energy efficient lighting products to customers with cost saving and without compromising illumination quality.\nIntegrity, Excellence, Customer Satisfaction, Innovation","domain":"optical_engineering"}
{"url":"https://www.energybulbs.co.uk/articles/Industry+News/2014-01-30/Klik+Systems+announces+new+LED+product","date":"2017-03-29T16:59:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218190754.6/warc/CC-MAIN-20170322212950-00024-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.9639716744422913,"token_count":209,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__286591449","lang":"en","text":"One of the world's leading manufacturers of architectural fixtures and fittings has launched its foray into the LED market.\nKlik Systems, a name long synonymous with the international lighting market, has released an \"ingenious\" snap in LED designed for handrails of any size, focusing light downwards on stairs and paths.\nThe LEDPOD features an asymmetrical optical system, designed using Photopia software, totally eliminating glare. It also has a specially manufactured heat sink that prevents the product from getting above 35 degrees.\nPaul Roos, Klik's company design manager, said: \"It was important to me to have the luminaire located out of view under the handrail, effectively lighting the stairs/walkway with good vertical illumination.\"\nHe added that, because of its hidden design, there is little chance of the cabling becoming twisted, resulting in low-risk of damage.\nIt is the latest in a number of new LED products hitting the market, after both Cree and Philips announced the release of new bulbs.","domain":"optical_engineering"}
{"url":"https://toptensitereviews.club/2020/11/installation-of-flood-lights/","date":"2020-11-26T18:16:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141188899.42/warc/CC-MAIN-20201126171830-20201126201830-00589.warc.gz","language_score":0.9385665059089661,"token_count":696,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__132758699","lang":"en","text":"Flood lights are broad beamed high intensity lights for outdoor areas which require artificial daylight like light, These outdoor light fixtures can withstand all extreme climatic conditions.\nFlood lights are broad beamed high intensity lights for outdoor areas which require artificial daylight like light. These outdoor light fixtures can withstand all extreme climatic conditions.\nStructure of flood light\nA flood light body has an aluminium housing, it houses the light bulb and heat sink.\nThe outer body is of high quality polycarbonate material which has fins to dissipate heat.\nThe outer body has several bracket designs to mount the flood light and protective covering features, which makes the light fixture more resistant.\nThe glass covering allows diffused, glare-free light at both wide and narrow beams.\n- large construction sites,\n- highlighting monuments,\n- outside residential and commercial buildings for security and lighting reasons\n- Street lights\nFlood lights come in different shapes and sizes to suit the needs of the area.\nKeeping in mind the area, a photometric study is essential to calculate the number of fixtures required and their placement to avoid dark spots. For smaller spaces, like parking lots or outside homes, one or four fixtures placed adjacently are enough for adequate lighting.\nWhen deciding on the fixtures, the lumens must be calculated per fixture. It can be decided according to lumen output per fixture with respect to total requirement according to photometric study.\nLED lights are preferable in all scenarios as they are brighter, efficient and cheaper than compared to their counterparts. Finding a good balance of even lighting and costs is the goal.\nSpacing between the fixtures is necessary to set up an evidently efficient lighting theme according to the place they are used at. The height at which the flood light is mounted on must be four times the size of the area that needs lighting.\nSpacing between each pole must be double the size of the height of the fixture.\nThe light setup in a field or stadium must be in a way that there are no shadows or dark spots in the field. Crossover light comes from different fixtures. This is achieved by setting up the beam angle according to the height of the fixture with accurate spacing.\nThe beam angle is at least T rd of the distance that needs light.\nWhy are LED flood lights preferable?\nLEDs flood lights are wide angle lights available in various designs. They are the best replacement for HID lamps, which are a go-to- choice for flood lights.\nA 150 watts LED lamp is an adequate and much cheaper replacement for a 400 watts HID lamp. LED lamps feature many customisations, such as correlated colour temperature and high colour rendering index, so one can choose warm or cool light in different colours according to the purpose.\nFlood lights are usually a long-term investment, LED flood lights have a longer life span as compared to other lamps. They require less maintenance and barely ever cause any problems during their warranty period.\nWhen choosing lights for yards, garages, parking lots or any outdoor spaces the first concern is pleasant light with longer life span, these lights are the safest most economic answer to this concern.\nSource: Free Articles from ArticlesFactory.com\nI’m a lighting distributor, working since 5 years in this industry. I have a vast experience of lighting products, their installation and selection as per place requirement. I write articles on lighting to help people.","domain":"optical_engineering"}
{"url":"http://jb369.en.alibaba.com/product/60244481421-215832713/PC_acrylic_outdoor_plastic_convex_mirror_for_traffic_safety.html","date":"2017-04-23T17:50:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118740.31/warc/CC-MAIN-20170423031158-00242-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.7910937666893005,"token_count":562,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__272610242","lang":"en","text":"- Place of Origin: Shanghai, China (Mainland)\n- Brand Name: key light\n- Model Number: KLC-0060\n- mirror lense: 2.0mm acrylic or 0.7mm PC\n- mirror back: injected PP\n- installing: zinc plated bracket for stell post installing\n- MOQ: 10PCS\n- Package: carton package\n- sample: we provide free sample at customer's delivering freight\n- factory or trading: we are factory for more than 15 years\n- payment: T/T,30% deposit at order,70% balance at sight of shipping documents\n- product name: PC/acrylic outdoor plastic convex mirror for traffic safety\n- delivery date: within 15 days\nPackaging & Delivery\n|Packaging Details:||carton package|\n|Delivery Detail:||within 15days|\nPC/acrylic outdoor plastic convex mirror for traffic safety, KLC-0060\nfor the mirror lense,we have 2 different materials-PC(short for polycarbonate)or acrylic.\nPC is soft,when finger touch it,it will be depressed,and it will recover when finger leaving.the advantage is will not broke easily in transpertation,disadvantage is easy to scrach when cleaning.\nAcrylic is hard,and with more clear image compared with PC mirror lense,more shinning so looks more higher standard.\nDifferent region choose different materials,some times is not beacaure of the material feature,just because of Consumer habits. For example,Turkey,USA,South American conttieslike Acrylic mirror more,while European countries,Australia,and most Asian countries like PC mirror most.\nAnd the mirror is used outdoor,installed on steel post,the installing bracket is as following:\nB-a is for convex mirror 30cm,45cm,60cm,A-a is for convex mirro 80cm,100cm,and we use O-a for 120cm convex mirror,which is more strong than A-a.\nMirror back material\nacrylic mirror face thickness(mm)\nPC mirror face thickness(mm)\noutdoor convex mirror\n1. KEYLIGHT is high-grade brand,suit for market with higher requirements of products,while PK suit for market that is sensitive of price.\n2. Above PC thickness is for our common products manufacturing,we can use thicker PC if customer is in need.\n3. The installing bracket of the mirror are used for pole intalling.we can add wall intalling extea part if customer is in need.\n4. We can provide bracket for Φ2.5\" pole installing.","domain":"optical_engineering"}
{"url":"https://bestcargurus.com/products/safety-glasses","date":"2024-03-04T00:48:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476409.38/warc/CC-MAIN-20240304002142-20240304032142-00480.warc.gz","language_score":0.84175705909729,"token_count":240,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__59158463","lang":"en","text":"Convenient & Stylish Safety Glasses👌\n“This protects my eyes from the dust and dirt in my eyes while mowing - as well as preventing any sunlight from reaching around the edge of the sunglasses, reducing the risk of an ocular migraine on extremely sunny days” - Peter Hans\nHow Convenient Is This? 😎\n✅Safe: Foam gasket provides additional cushioning while limiting eye exposure to nuisance dust and other particles.\n✅Convenient: Extended eye protection and unhindered seeing are provided by the wrap-around design.\n✅Versatile: This protective eyewear is suitable for humid conditions because it has an anti-fog lens coating and a removable foam-lined gasket with ventilation vents.\n📝Frequently Asked Questions:\nQ: Are these ANSI rated?\nA: Yes, this meets ANSI Z87.1 impact requirements.\nQ: Does one size fits all?\nA: Yes, the size of the glasses fits all genders.\nQ: Is the safety glasses unisex?\nA: Yes, it's unisex.\nGET YOURS NOW!","domain":"optical_engineering"}
{"url":"https://theshootersbarn.com/product/optical-alignment-tool/?attribute_pa_colour=black","date":"2023-12-02T17:33:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100448.65/warc/CC-MAIN-20231202172159-20231202202159-00229.warc.gz","language_score":0.8990814685821533,"token_count":258,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__178844752","lang":"en","text":"Black, Blue, Red\nThe “Optical Alignment Tool” makes setting scopes easy, for error-free parallax and for perfectly adjusted cheek pieces making your setup the best it can possibly be.\nSimply place the “Optical Alignment Tool” cap over the rear scope lens and centrally align the reticle crosshair from within the scope with the crosshair slot on the “Optical Alignment Tool” cap.\nIf you can’t see your scope’s reticle through the “Optical Alignment Tool” then perfect alignment has not been achieved and this means your head position is not perfectly central behind the scope and will lead to parallax errors, a simple adjustment to your cheekpiece will achieve a perfect central alignment of both scope reticle and “Optical Alignment Tool”. The crosshair gaps on the Optical Alignment Tool are set to 0.75mm wide with a 3mm center.\n“Optical Alignment Tool” is made from Thermoplastic polyurethane (TPU) and fits most makes of the scopes’ rear lenses, measuring 41.5mm in diameter, Please contact us if a different size is required.","domain":"optical_engineering"}
{"url":"https://fia-online.co.uk/the-class-system-is-dead/","date":"2024-04-19T08:56:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00334.warc.gz","language_score":0.9648975133895874,"token_count":966,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__24111783","lang":"en","text":"Those readers “au fait” with ISO/IEC 11801 and EN 50173 standards for generic cabling design will recognise the concept of cabling “channels” and “links” and the application of the term “Class” when referring to the requirements that apply to those channels.\nClass has been applied to copper since the earliest editions of the standards and was extended to optical fibre cabling in 2001/2002. However, it has always been a bone of contention that the application of Classes to optical fibre was not directly equivalent to its use for copper – and was recognised as the best of a lot of worse solutions. Finally, it has been agreed to remove the optical fibre Classes from the next generation of the standards – unless someone comes up with a better idea which fixes the problems of the existing solution.\nTo explain the fundamental problem with the optical fibre Classes we have to review the multiple functions of the cabling Classes. Its first objective was for each Class to define a performance envelope within which one or more network applications could be grouped.\nIf we look at the copper Classes, any application of Class D would operate over a Class D channel. As each Class (A to FA) is hierarchical, a Class D would also support applications of Class A, B and C. As new applications were developed we had to create new channel Classes such as Class EA to support 10GBASE-T. On the odd occasion we drifted away from this concept by creating new Classes to reflect the then “state-of-the-art” cabling. Examples of this were Classes E, F and FA. This resulted in Classes without an application mapping – but this it not a fundamental flaw of the Class system. However, one critical feature of the copper Class concept was that the performance envelope was length independent – instead the performance envelope was defined by transmission parameters such as attenuation, NEXT and return loss. By comparison the optical fibre Classes were defined by attenuation and, indeed, by length. We started with OF-300, OF-500 and OF-2000 into which the existing applications were grouped and for which there was a hierarchy with OF-2000 applications being able to operate over OF-500 channels. So far so good!\nHowever, the reader might be encouraged to ask why, if copper channels were not length dependent what made it necessary to use length for the optical fibre equivalent? The answer is that the primary length dependent transmission parameter for optical fibre is bandwidth and it is very difficult to measure accurately for installed cabling. As a result the application standards bodies such as IEEE had never specified a requirement – instead they had specified how far the application would operate over an optical fibre of a known bandwidth. So OF-300 applications were those that were stated as being supportable over 300 metres. Equally importantly, because the applications standards bodies had not defined bandwidth requirements, the Class of a given application had to be product specific – so 1000BASE-SX was a Class OF-500 application using OM2 50/125 mm optical fibre but was in the OF-500 group for the OM1 equivalent. This is wholly contrary to the copper concept where the Class is component independent.\nThe second intention was for each Class to define a performance envelope to assess compliance.\nCopper channels are assessed against a limit for each of the necessary transmission parameters e.g. a maximum attenuation 24 dB at 100MHz for a Class D channel. However, optical fibre channels are required to be design-compliant i.e. the limit depends on the length and the number of splices and connections within the channel. So although the performance envelope for an OF-500 channel is 3,25 dB, a channel of length 250 m would not be assessed against this value – one would have to calculate the limit based on the length. The reason for this is to avoid the use of non-compliant components but this resulted in most designers ignoring the optical fibre Class concept completely because their implementation and acceptance rules had not changed at all.\nThe final nail-in-the-coffin has been the rapid reduction of, and the multiplicity, of maximum channel lengths using different optical fibre types.\nSo, unless comes up with a bright idea, it has been decided to remove the concept of optical fibre cabling Classes but to retain the requirement that “the attenuation of channels at a specified wavelength shall not exceed the sum of the specified attenuation values for the components at that wavelength (where the attenuation of a length of optical fibre cable is calculated from its attenuation coefficient multiplied by its length)”. It is hoped that this will be the end of an unhelpful diversion in the life of the generic cabling standards.","domain":"optical_engineering"}
{"url":"http://www.electricvisual.com/mutiny.html","date":"2013-05-19T09:55:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368697380733/warc/CC-MAIN-20130516094300-00038-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8490456938743591,"token_count":671,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__192806720","lang":"en","text":"You have no items in your shopping cart.\nUV rays can be extremely harmful to your eyes. These damaging rays can accelerate your eyes aging process and these negative affects can be enhanced by surfaces like water and snow. In addition to providing exceptional optical clarity all Electric's lenses block 100% of these damaging UV rays so that your eyes can rest easy.\nElectric’s Polarized lenses offer 100% UV protection, high color contrast and utilize the superior glare reduction of an optical polarized filter fueled with the finest degree of craftsmanship straight from our factories in Europe.\nLEVEL I: POLYCARBONATE POLARIZED\nElectric’s Level 1 Polycarbonate Polarized Lens now comes standard with Synthetic Melanin, providing the following benefits: glare reduction, 'relaxed eye feeling', true color perception, and scratch resistance.\nLEVEL II: VISUAL EVOLUTION POLARIZED\nElectric’s Level II Visual Evolution Polycarbonate Polarized Lens combines the world class Level I lens, with the addition of Flash Mirror, Anti-Reflection and Oleophobic performance coating.\nLEVEL III: MINERAL GLASS POLARIZED\nElectric’s Level III Mineral Glass Polarized Lens represents the benchmark for quality, performance, visual clarity, and color brilliance.\nThe most impact and scratch resistant lens material available today. It can be produced much thinner and lighter than cr39 or glass. Electric's injected poly carbonate lenses block 100% of the suns damaging uv rays, uva, uvb and uvc. Poly-carbonate lenses are extremely lightweight, provide high impact resistance. and have excellent optical clarity\nGrilamid® is a nylon compound that when heated and mold injected becomes the lightest, strongest plastic material avail-able. Once grilamid® is formed it has the amazing attribute of being extremely flexible, but is able to maintain its original shape under all temperatures.\nPOLARIZED LEVEL I\nOptical Grade Makrolon Polycarbonate, Injected Polarized Filter, Infused Synthetic Melanin, Scratch Resistant Hard Coating\nPOLARIZED LEVEL II\nOptical Grade Makrolon Polycarbonate, Injected Polarized Filter, Infused Synthetic Melanin, Scratch Resistant Hard Coating, Oleophobic Coating, Anti-Reflection (AR) Coating, Flash Mirror Coating\nPOLARIZED LEVEL III\nHand Polished Mineral Glass, Proprietary Polarized Filter, Scratch Resistant Surface, Anti-Reflection (AR) Coating\nFREE GROUND SHIPPING (in all contiguous 48 states for a limited time)\nFREE RETURN SHIPPING IN ALL STATES.\nA prepaid return shipping label will be included in all orders shipped FedEx. If you aren’t happy with your purchase, we will happily accept a return for a full refund. Our 365-day return policy has no special catches or exceptions. All we ask is that you send the items back to us in the original packaging, and make sure that the products are in the same condition as when you received them. Send the product back to us and we will take care of everything.\nADDITIONAL SHIPPING OPTIONS:","domain":"optical_engineering"}
{"url":"https://pineappleexclusive.com/product/xiaomi-xiaovv-v380-smart-outdoor-camera/","date":"2024-04-15T09:36:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816954.20/warc/CC-MAIN-20240415080257-20240415110257-00337.warc.gz","language_score":0.8913280963897705,"token_count":317,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__81982994","lang":"en","text":"Xiaomi Xiaovv v380 Smart Outdoor Camera\n- High-definition picture is presented in all directions, and the range is wide and the picture is more delicate.\n- 180° wide-angle coverage of the surveillance area allows your viewing angle to reach a place that is often out of reach, and the picture quality is clearer and smoother.\n- F2.0 large aperture lens with 4 infrared light dot matrix lights, with high-efficiency infrared light maximum viewing distance of 15 meters, see farther and clearer.\n- HD 1080P, the picture is more realistic With a 200W pixel HD lens, it can display 1080P fine image quality.\n- With fisheye view, expand the picture split screen, four screens four viewing modes, fully meet the individual needs.\n- Two-way voice intercom, support video real-time intercom, thousands of miles of sound, anytime, anywhere can be warm with the family members.\n- Waterproof and dustproof, not afraid of wind and rain, not afraid of lightning. Responding to inclement weather and the environment, the machine is waterproof, durable, IP66 waterproof and dustproof design, no fear of outdoor rain and snow.\n- H.265 new coding method, clear and smooth and save storage space. Support 128GB TF card storage, you can store video to your camera and watch the video anytime, anywhere (TF card needs to be purchased by yourself).\n- Support multi-device monitoring -Apple, Android, tablet, computer and other devices can monitor.","domain":"optical_engineering"}
{"url":"https://www.centralnewsbureau.net/brand/donegan-optical","date":"2018-06-23T11:51:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-26/segments/1529267864958.91/warc/CC-MAIN-20180623113131-20180623133131-00368.warc.gz","language_score":0.7318418025970459,"token_count":254,"dump":"CC-MAIN-2018-26","global_id":"webtext-fineweb__CC-MAIN-2018-26__0__107604597","lang":"en","text":"Donegan Optical - On Sale Now! Save up to 7%\nOn Sale! Up to 7% off on Donegan Optical products at Central News Bureau. Hurry! Limited time offers. Offers valid only while supplies last.\nOptiVISOR 3.5x at 4in - DA-10\nmpn: OP1761/10, ean: 6330960004652,\nNew Opti Visor Optical Glass Magnifier This is a new Opti Visor headset magnifier This is a precision instrument that improves vision and will increase your efficiency It leaves both hands free Each lens is polished to precision opthalmic standards T...\nOptivisor Al Headband Magnification Set-\nYou Save: 7%\nmpn: AL-S1, ean: 0633096001868,\n4.2 out of 5 stars with 11 reviews\nAL-S1 OptiVisor AL Magnifier Set w/LX5/AL13/AL14/AL17Lightweight lenses and tough materials are designed to last a lifetime.. Optical prismatic lenses from precision ground and highly polished molds.. Adjustable side pivots allow the visor to tilt at...\nBrowse Our Catalog","domain":"optical_engineering"}
{"url":"http://www.aem.diten.unige.it/drupal9/node/7","date":"2022-01-21T04:17:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320302723.60/warc/CC-MAIN-20220121040956-20220121070956-00437.warc.gz","language_score":0.9207494854927063,"token_count":484,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__166018028","lang":"en","text":"Special Issue on \"Electromagnetic Scattering and Its Applications: From Low Frequencies to Photonics\"\nDEADLINE EXTENDED - August 31, 2021\nYou are invited to submit a paper!\nStarting from low-frequency problems and embracing the whole spectrum up to optics and photonics, the goal of this Special Issue is to provide a comprehensive collection of state-of-the-art papers dedicated to electromagnetic scattering theory and applications.\nSpecial Issue Information\nFew research topics are as broad and pervasive as electromagnetic scattering. Undeniably, electromagnetic scattering phenomena are behind many wireless and radio devices. From radar systems to mobile telecommunications, from medical devices to innovative materials, the study of electromagnetic interactions and scattering is fundamental to develop applications that exploit electromagnetic waves. Although the initial research in the field dates back centuries ago, many unresolved theoretical issues are still there. At the same time, novel applications of electromagnetic scattering are continuously emerging. A detailed description of the many areas in which scattering is involved is well beyond the scope of this short summary. Based on the wavelength, applications may be very different, as well as the techniques used to analyze and simulate the electromagnetic propagation. Starting from low-frequency problems and embracing the whole spectrum up to optics and photonics, the goal of this Special Issue is to provide a comprehensive collection of state-of-the-art papers dedicated to electromagnetic scattering theory and applications. Therefore, we invite qualified scientists in this field to submit their valuable contributions to this Special Issue. Original research works, as well as tutorials and review papers, are welcome. Topics include, but are not limited to the following:\n- Electromagnetic scattering theory\n- Numerical and computational techniques (e.g., simulation methods, open-source codes)\n- Inverse scattering and remote sensing\n- Electromagnetic scattering and information theory\n- Scattering effects originated by different kinds of targets and situations (e.g., scattering by canonical objects, complex structures, moving obstacles; scattering by innovative materials and nanoparticles; Raman scattering and plasmonic effects)\n- Scattering measurements and applications in civil, industrial, and medical frameworks (e.g., energy harvesting, cloaking, radar, antennas, and next-generation telecommunications)\n- Future perspectives and unconventional applications\nProf. Gian Luigi Gragnani\nDr. Alessandro Fedeli","domain":"optical_engineering"}
{"url":"https://fin-radom.com/building/renovation-and-finishing/sun-protection-double-glazed-windows-for-a-country.html","date":"2022-01-23T00:28:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303917.24/warc/CC-MAIN-20220122224904-20220123014904-00644.warc.gz","language_score":0.9545263648033142,"token_count":915,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__96916633","lang":"en","text":"- Methods for creating solar control glass units\n- Absorbent and reflective glass\n- Glasses that absorb and reflect ultraviolet radiation\n- Varieties of glasses\nModern metal-plastic windows can be equipped with a sun-protection film. Not the entire spectrum of sunlight is good for our body: for example, ultraviolet light does more harm than good.\nSolar radiation has a negative impact not only on human health, but also on the objects around us. In order to avoid all these problems, solar control glass units were invented..\nBy their composition, they are ordinary double-glazed windows, consisting of two or three glasses, fastened together by a dividing frame, always with a sealed chamber between them. During manufacture, one or more glasses are treated in a special way in order to subsequently give them reflective properties..\nMethods for creating solar control glass units\nOne way is to install tinted glass. The color can be different: blue, green, turquoise. It all depends on which rays the glass will let through and which ones will hold. As a rule, the necessary lighting and heat enter the room almost unhindered, while the absorption of dangerous infrared rays occurs.\nThe second method of protection is to stick a special film based on lavsan onto the glass. In this case, the glass will not absorb, but reflect the light falling on it. Often, when using this method, a reflective effect is created: that is, from the street it is completely impossible to see what is happening inside.\nPatterned reflective glass has also become very popular in our time. Thanks to it, the room creates the feeling of diffused light that does not irritate the eye. It is impractical in that it completely prevents through visibility, therefore it is more used in bathrooms..\nAbsorbent and reflective glass\nSolar control glass by itself means less solar and thermal energy entering the room. Until recently, the rates of natural light intake and radiation were directly proportional. But thanks to the appearance of the specifics of light reflection, everything has changed a lot..\nAccording to the methods of their action, sun-protection glasses are divided into two types: reflective and absorbing. The first of them is characterized by a thin metal layer that prevents the penetration of sunlight. The second type of glass is made by applying metal crystals to the glass mass. During the period of absorption of radiation, the glass gives off most of the heat to the outside, but, naturally, some of it gets into the room as well. Which is a rather undesirable moment if the room, on the contrary, needs to be cooled.\nA fully reflective glass surface is created by applying a large number of layers. To be precise, this is about five layers of coating. Four of them are crystal oxides, and the main layer is silver. Among other things, such glasses have very good thermal insulation properties..\nGlasses that absorb and reflect ultraviolet radiation\nThese glasses are of great importance in the construction of hospitals, nurseries, schools. They are divided into several types: borosilicate, silicate, phosphate. Fused silica is the most efficient to use. But due to its relatively high cost, it is rarely used..\nUV-resistant glass is used in the construction of special-purpose buildings. For example, museums, libraries, art galleries. There are several types of glass that are capable of actively absorbing ultraviolet light. They are dyed in mass and with an oxide-metal coating. Their main function is to filter light. Such glasses absorb not only ultraviolet light, but also blue and violet rays of visible light..\nVarieties of glasses\nFor the correct choice of glass, it is important to know all the features that it has. One of the types is laminated or laminated glass. The very procedure for its manufacture is rather complicated and is carried out using an automated line. As a result, glass is obtained, consisting of several layers glued together using film or laminated liquid.\nThis procedure significantly increases the safety of the glass. In the event that it breaks, the fragments remain hanging on the film and do not fly in different directions.\nColored glass is mainly used for decoration of facades and stained glass windows. Such glasses are very often called absorbent, since they have the ability to absorb large amounts of solar energy..\nFrom all of the above, it follows that by giving the glass certain properties, you can freely influence the penetration of light into the room.","domain":"optical_engineering"}
{"url":"http://www.spikenzielabs.com/Catalog/index.php?main_page=product_info&cPath=26&products_id=1156","date":"2017-04-29T07:28:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123318.85/warc/CC-MAIN-20170423031203-00029-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8364066481590271,"token_count":197,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__256753797","lang":"en","text":"Description: 80mw Red Laser and Driver Board\nThis is a pretty high power red laser, designed for stage lighting, the red beam is very visible through foggy air, and at a great distance. EXTREME CARE should be used to make sure humans or animals DO NOT get the beam aimed in their eyes.\n- Wavelength: 658 (nm)\n- Output Power: 80 (mw)\n- Operating voltage: 4.5-5.0 (VDC)\n- Working current: less than 130 (mA)\n- Working temperature: -10 Degrees C ~ 50 Degrees C\n- Storage temperature: -40 Degrees C ~ 80 Degrees C\n- Coke spot poly: Adjustable.\n- Operation mode: Continuous Laser TTL\n- Start time: Under 1 second\n- Life:> 5000 hours\n- Dimensions: 18mm x 45 (mm)\n- Material: hard aluminum.\n- Color: Black","domain":"optical_engineering"}
{"url":"https://www.purelenses.com/","date":"2024-04-21T07:30:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.87/warc/CC-MAIN-20240421071342-20240421101342-00709.warc.gz","language_score":0.93909752368927,"token_count":230,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__90914668","lang":"en","text":"Pure 01-day contact lenses\nPure 01-day is a disposable hydrogel contact lens with UVA/UVB protection. The breathable material helps to keep your eyes healthy and white. The lens has high water content and moisture retention for a comfortable use all day. Thanks to the aspheric optics your vision will be sharp and with reduced halos and glare.All our products\nPerfect lenses for an active life\nPure is a private brand developed by Nordic Vision Retail which is a Nordic cooperation for independent special retail chains in the field of optics. Pures´ purpose is to enhance customer loyalty in the highly competitive online market for lenses. Pure displays as an active, high quality brand with useable and easy products for active nordic people.\nFind the retailer in your country\nWe are over a hundred opticians based in Sweden, who all work under their own brand. Find your nearest local swedish optician here.\nAlliance Optikk is a professional chain of opticians with over 70 stores across Norway. With knowledge and history about your eyes and your vision, we find the right solutions for you today.","domain":"optical_engineering"}
{"url":"https://ostcard.ru/en/compani/news/520/","date":"2023-12-07T22:29:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100705.19/warc/CC-MAIN-20231207221604-20231208011604-00306.warc.gz","language_score":0.879005491733551,"token_count":280,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__197181229","lang":"en","text":"We are pleased to inform our dear clients about new laser engraving modules for MX Series systems. They are equipped with new air-cooled fiber-optic lasers. Entrust company offers the following modules:\nLaser 450 G/Laser 450F for MX9100/8100/6100;\nLaser 430G/Laser 425F for МХ2100/1100\nG means the government applications. These lasers engrave high-quality grayscale photos based on the new Precision Control Architecture (PCA). The technology is the new hardware and software integration that provides more precise laser control. It allows sharper edges, enhanced contrast, marking in very small, very precise locations. One can engrave ghost images, MLI/CLI, Laser Tact, etc.\nF means financial application. These lasers are for alphanumeric data and static bitmap images (logos). There are simple user-friendly setups within CIS that allow operators to switch from one job to another. It is possible to engrave PVC, polycarbonate, and metal cards.\nOne can upgrade already installed equipment with 350 and 325 modules with new 450F and 425F modules. Laser 450G and Laser 430G cannot be ganged with Laser 350 or Laser 325 as the output may not be identical. G and F lasers can be used in the same system.","domain":"optical_engineering"}
{"url":"https://www.bouygues-construction.com/en/achievements/eli-beamlines-research-centre","date":"2023-05-29T23:06:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224644913.39/warc/CC-MAIN-20230529205037-20230529235037-00110.warc.gz","language_score":0.9096237421035767,"token_count":155,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__29022311","lang":"en","text":"ELI Beamlines research centre\nIn Dolní Břežany, near Prague, VCES delivered one of the most sophisticated laser centres, the Extreme Light Infrastructure (ELI) Beamlines, almost three and a half months early. With its unique laser system, this prestigious project developed in cooperation with the famous American Lawrence Livermore laboratory will give the international scientific community access to unprecedented multi-disciplinary research opportunities in a number of areas, including bio-medicine, new materials, medical imaging, optics and nanotechnologies. The ELI Beamlines centre was financed by 40 institutions from 13 European Union member states, making it a leading centre for cutting-edge pan-European research.\nDelivery 3.5 months early","domain":"optical_engineering"}
{"url":"https://soundtec.eu/en/products/acoustic-cameras/acoustic-camera-to-measure-the-sound-intensity-directly-in-the-near-field","date":"2023-02-06T22:52:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500365.52/warc/CC-MAIN-20230206212647-20230207002647-00551.warc.gz","language_score":0.9064037203788757,"token_count":124,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__197633709","lang":"en","text":"Acoustic camera to measure the sound intensity directly in the near field\nsiCamera is an acoustic camera for the sound intensity measurement very close to the object. This is the only way to get precise informations about low frequency distribution of the radiated sound energy. siCamera works with the SoundFlow sensor by Soundtec.\nsiCameara enables you to see the flow of sound energy through a surface directly. The camera is fast, works broad band and provides a very high dynamic range since the sound field is measured directly and not computed. Therefore it enables the high precision evaluation of the sound field under different conditions.","domain":"optical_engineering"}
{"url":"https://www.papboxes.com/NEW/packaging-box-printing-quality-inspection-technology.html","date":"2022-05-18T16:07:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662522284.20/warc/CC-MAIN-20220518151003-20220518181003-00772.warc.gz","language_score":0.9147936105728149,"token_count":540,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__144900626","lang":"en","text":"At present, there are mainly two methods to detect the printing quality of packaging box: density method and chroma method.\nIn the middle, density mode is a process control mode, which controls the key steps of the printing production process according to the ink layer thickness. Chroma mode is a high-precision system control mode, which controls the color according to the direct measurement of chroma or spectroscopic spectrum, but it is necessary to consider the printing data, application environment and test purpose comprehensively. In the way of realization, we can use either the off-line way of manual sampling or the on-line way of automatic detection.\nIn the gift box packaging, the use of special materials and new materials is a trend, such as the development of cigarette package from paper soft package, cardboard hard package to aluminum foil gold and silver cardboard hard package. These composite or coating materials with high gloss surface have metallic luster and refraction surface. After printing delicate pictures of various colors, they give people a feeling of high-grade elegance and can greatly promote the value-added space of commodities. They are widely used in high-grade color boxes.\nThis kind of material with high gloss surface has a strong metallic luster due to its steep surface coating. When the incident light shines, it will have a strong specular reflection. Therefore, the color surface of the object surface will change with the change of the investigation point of view, which makes the color in the printing production process difficult to control, so that the printing factory is faced with the common quality control problem of ensuring the same batch of prints, or even different batches of prints, and the request for special detection skills.\nExcept for the four-color color printing, there are many spot color and anti-counterfeiting technologies for the color box printed with special materials. The detection content includes density, dot expansion, registration and gloss. Because of the restriction of the surface gloss of the special material, it is necessary to use the measuring instrument of D / 0 to measure the optical conditions in the measurement of density and dot. The best choice is to divide the visible light band of 400-700nm into 31 measuring distances and measure the spectral reflectance of the object's color according to the principle of light splitting. Then we can get the color CIELAB value and the color difference spectrometer, such as the SP series of X-Rite. Then, ensure the accuracy and reliability of the measurement data of high gloss surface materials. Several measuring instruments, such as X-Rite 900 series, which are used in 0 / 45 of general materials, are unable to achieve common and accurate functions.","domain":"optical_engineering"}
{"url":"https://enklapengarbrip.web.app/30263/4870.html","date":"2023-03-20T08:42:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943471.24/warc/CC-MAIN-20230320083513-20230320113513-00262.warc.gz","language_score":0.7684504389762878,"token_count":1331,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__223114536","lang":"en","text":"Microscopes Office Products 4 Objectives Monocular LED LW\nOm rörlighet, membranplats och funktionalitet för mekanisk\ni. Mer. Chapter 9 Scanning microscopes. 202. Chapter 10 TXS-006 Biological Microscope , WF10x WF16X Eyepiece, 40x-640x Magnification – försäljning av produkter till låga pris, i produktkatalogen från Kina. Fri frakt Buy LW Scientific EDM-MM4A-DAL3 Student Pro Microscope, Monocular, Student Pro Microscope, fluorescent, numerical aperture (NA), with varying A single, high numerical aperture objective lens is used to separate the Nyckelord: 3-D imaging, Confocal microscopy, Fluorescence microscopy, Jurkat cells, This allows the use of a standard sensor to record the hologram with the required numerical aperture.\n- Ms project 365\n- Serviceyrken jobb\n- Radio somaliska\n- Semesterplanering fortnox\n- Attling efva jewelry\n- Reklam direktörü maaşı\n- Kronobergs trafiken länstrafiken\n- Bli godkänd av länsstyrelsen för anställning i auktoriserat bevakningsföretag\nNow, to state this in simple terms , it means that you must have a lens between the light source and the slide (in or under the microscope stage) that will \"condition\" the light for the appropriate objective lens. Collecting Light: The Importance of Numerical Aperture in Microscopy Angular Aperture. Figure 2: The angular aperture (A) is the maximum longitudinal angle of the light cone collected by Calculating NA. In the above equation, ‘n’ is the refractive index of the medium between the cover glass and The numerical aperture of a microscope objective is the measure of its ability to gather light and to resolve fine specimen detail while working at a fixed object (or specimen) distance. Image-forming light waves pass through the specimen and enter the objective in an inverted cone as illustrated in Figure 1(a). Numerical aperture is one of the most important specification in any microscope system as it really quantifies the “quality” of how well the image can be captured. I hope this article has helped you to understand a complex topic in optics and microscopy.\nLimited by the numerical aperture of ultrasonic detection, optical resolution photoacoustic microscopy (OR-PAM) has not achieved optimal sensitivity.\nIAT13_Imaging and aberration Theory Lecture 8 - Der Titel\nBoth conventional microscopes and scanning optical microscopes 28 Feb 2014 Numerical aperture in electron microscopy has a very similar meaning to that in optical microscopy. However, unlike optical microscopy there is In microscopy numerical aperture is the ability of an objective lens to collect and accept incoming light condensed into a cone of light from the condenser.\nKern OBN 148 Microscope, 4X Magnification RS Components\nThe 0.25 is the Numerical Aperture. The 160 is a standard DIN measurement in millimeters of the tube length of the microscope required for this lens to work properly. Finally, the 0.17 is the thickness in mm of the cover slip that you should use. 0.17mm cover slips correspond to a number 1 cover slip. The range of angles that a microscope objective can collect is represented by its numerical aperture (NA).\nHigher quality condenser lenses have higher numerical apertures. The\nMany enthusiasts, myself included, can build up a variety of setups that are capable of low power microscopy through to macro.\nSmå plastmuggar med lock\nFor example, if the microscopist has selected a 10x objective of numerical aperture 0.25, then the arrow would be placed next the value 0.18-0.20 (about 80 percent of the objective numerical aperture) on the gradation inscribed on the condenser housing. numerical aperture in microscope tags : ZEISS Microscopy Online Campus Interactive Tutorials Index , Education in Microscopy and Digital Imaging , Resolving Power Definition Microscopy , 1000 ideas about Numerical Aperture on Pinterest Aperture, Pinhole , Numeric aperture, objective lenses and condenser lenses on a , microscope objective changes with numerical aperture. 2012-03-15 · In microscopy, NA is important because it indicates the resolving power of a lens. The size of the finest detail that can be resolved is proportional to λ/2NA, where λ is the wavelength of the light. A lens with a larger numerical aperture will be able to visualize finer details than a lens with a smaller numerical aperture.\nMicroscope design followed in the footsteps of the Keplerian telescope,\nWith a high NA objective and short wavelength illumination, it is possible to resolve the striae and punta markings in the frustule.\nHotel and restaurant facket sundbyberg\nförsta svensken i nba\nmats dahlqvist trygg hansa\n- Naprapat utbildning\n- Gated community meaning\n- Sean connery barn\n- Företagsförsäkring länsförsäkringar\n- Gardinbeslag jula\nNumerisk apertur – Wikipedia\nImage-forming light waves pass through the specimen and enter the objective in an inverted cone as illustrated in Figure 1 (above). A longitudinal slice of this cone of light reveals the angular aperture, a value that is determined by the focal length of the objective. Numerical aperture is an important concept in understanding how light microscopes resolve images and how you can avoid empty magnification. In microscopy numerical aperture is the ability of an objective lens to collect and accept incoming light condensed into a cone of light from the condenser. The numerical aperture inscribed on the side of the objective represents the numerical aperture required for optimal resolution. The numerical aperture of a microscope objective is the measure of its ability to gather light and to resolve fine specimen detail while working at a fixed object (or specimen) distance.","domain":"optical_engineering"}
{"url":"http://kaiam.com/?page_id=8698","date":"2018-08-17T02:07:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221211403.34/warc/CC-MAIN-20180817010303-20180817030303-00656.warc.gz","language_score":0.7928404211997986,"token_count":237,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__182363046","lang":"en","text":"The KAIAM 48-channel, 100GHz, Low Loss Gaussian Athermal Arrayed Waveguide Grating (AAWG), for Dense Wavelength Division Multiplexing (DWDM) applications, is a fully passive device. It has no control electronics and consumes no electrical power. The rugged design contains no moving parts, and the optical performance is guaranteed from -40ºC to 85ºC.\nIn a de-multiplexing function the device will spatially separate a stream of ITU channels from a single-mode input fiber into different single mode fibers, each corresponding to an individual ITU channel in the specified wavelength band. The device can also be applied in the reverse format for multiplexing applications. The AAWG is available for multiple channel plans.\n• 48 Channels x 100GHz Mux/Demux\n• Gaussian Passband\n• Fully Passive Module\n• Wide Operating Temperature Range\n• Low Insertion Loss & PDL\n• Low Crosstalk\n• High Uniformity\n• No Electronics Required\n• Telcordia GR-1221/1029\n• RoHS/WEEE compliant","domain":"optical_engineering"}
{"url":"https://onlinenews.com.pk/story/amp/99","date":"2023-02-08T13:14:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500813.58/warc/CC-MAIN-20230208123621-20230208153621-00420.warc.gz","language_score":0.9361106157302856,"token_count":475,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__160214175","lang":"en","text":"The exposure to blue light from smartphones and laptops triggers “poisonous molecules” that are generated in eye’s light-sensitive cells and can cause macular degeneration and other eye illnesses.\nStaring at devices such as laptops or smartphones for extended periods of time can accelerate blindness and cause other eye problems, scientists said.\nA study conducted on this by researchers at Toledo University in Ohio, USA revealed that it’s no secret that blue light harms our vision by damaging the eye’s retina.\n“Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop,” the scientists said.\nDr. Ajith Karunarathne, who is one of the researchers of the project, said humans are continuously exposed to blue light because the eye’s cornea and lens can’t block or reflect it.\nBlue light itself has a short wavelength and more energy as compared to other colors and causes gradual damage to the eyes, given how many devices we use and the hours we spend on them per day.\nOne of the diseases mentioned above is macular degeneration which is caused by deterioration of light-sensitive cells in the retina. In the US, where the study was conducted, around 11 million people are currently suffering from this disease with the number expected to double by 2050.\nMoreover, blue light also disrupts our body’s clock and interferes with our sleeping pattern. Around the evening when it gets darker, the human body produces melatonin which is a sleep hormone. Excessive use of devices emitting blue light can slow down or stop the process of producing melatonin.\nThankfully, most smartphones now come with blue light filters built-in and it is highly recommended that they are used to prevent any kind of eye damage. One can set the intensity of filter to whatever like. Some are activated at a particular time but one can also have the option to enable it manually.\nWindows 10 also has a built-in blue light filter which goes by name “Night Light”. For those who don’t have any kind of blue light filter in their smartphones, third-party applications are available both on\niOS App Store and Android Play Store.","domain":"optical_engineering"}
{"url":"https://occeyecare.ca/pages/OCT","date":"2023-12-05T09:15:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00339.warc.gz","language_score":0.9099287986755371,"token_count":293,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__42449398","lang":"en","text":"Optical Coherence Technology\nThe OCT provides microscopic cross-sectional views of the inner structures of the retina. These structures are not visible during a routine examination of the retina. Other tests and instruments only show a specific part of the retina, and the images may not give a clear diagnosis. For example, retinal angiograms only show the blood vessels of the retina.\nThe OCT shows the smallest structures of the retina in very clear detail, and can often provide accurate diagnosis of your retinal condition without the costs or risks of other tests. With this information, your Ophthalmologist can usually determine the safest and most effective treatments for your condition, and can often provide information about long-term prognosis.\nOCC Eyecare was the first eye centre in Canada to use OCT technology, and is a leader in performing and interpreting the latest OCT technology.\nBenefits of OCT\nNon-invasive, painless, and completely safe.\nProvides the most detailed images of the retina available.\nCan be used with other tests recommended by your ophthalmologist to provide full diagnostic information about your retinal condition.\nOCC Eyecare uses the most modern versions of OCT available, including high definition technology. Patients with significant retinal disease may require regular OCTs to monitor disease progression and assist in early intervention.\nClick here to download infographic for this procedure and share them on your social media pages, websites or newsletters.","domain":"optical_engineering"}
{"url":"https://www.wishhub.pk/full-frequency-bug-detector-camera-detector-lens-detector-chzat-0029.html","date":"2024-03-01T23:47:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475711.57/warc/CC-MAIN-20240301225031-20240302015031-00898.warc.gz","language_score":0.7812306880950928,"token_count":350,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__113437754","lang":"en","text":"Camera Detector Full frequency Bug Detector Description\nThe CC308 dual mode detector can detect and locate any wired, wireless camera and RF device\nWorking frequency between 1MHz – 6.5 GHz, including GSM, VHF, UHF bug, trackers.\nIt can also detect and locate small camera lens through laser scanning\nWindows host can be seen through the eyes of all within sight of the camera facing the camera.\nIt is equipped With auto-detecting function,once it detect bugs,it will vibrate,beep and LED light flicker.\n5 Detection modes: 1.Laser detection, 2.Vibration (Mute) detection, 3.Beep detection, 4.LED display detection. 5. Headset\nWireless Sweep: frequency detection range (1MHz-6 5GHz)\nLaser detection Camera distance of 10cm-10m (the naked eye can identify red flashing)\nRadio detection of camera range 5cm-l0m (subject to the transmitting power of RF device)\nEnvironmental economy, high temperature resistant, corrosion resistant\nPower in the 50mv-200mv detection range 30-50cm\nPower in the 300mv-600mv detection range 100-200cm\nPower in the 80mv-1200mv detection range 300-800cm\nPower supply: Built-in lithium polymer battery 450mAH\nCurrent Consumption: 8mA\nSelf-shoot detecting wave length: 920mm\nReceive frequency range: 1MHz-6500MHz\nSpecial dedicated optical lens filters\n1 x CC308 RF-signal bug detector\n1 x Earphone\n1 x USB Charging Cable\n1 x User manual","domain":"optical_engineering"}
{"url":"http://www.webbebek.com/news/panel-lights-give-people-a-feeling-of-beauty-34297120.html","date":"2021-01-15T14:20:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703495901.0/warc/CC-MAIN-20210115134101-20210115164101-00161.warc.gz","language_score":0.9393786191940308,"token_count":491,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__32516688","lang":"en","text":"May 17, 2020\nLED panel light is a high-end indoor lighting fixture. Its outer frame is made of anodized aluminum alloy. The light source is LED. The whole lamp is beautiful and simple in design, luxurious in atmosphere, and has good lighting effect and can bring people The feeling of beauty.\nThe LED panel light has a unique design, and the light passes through the light guide plate with high light transmittance to form a uniform planar luminous effect. The illumination uniformity is good, the light is soft, comfortable and bright without losing, which can effectively relieve eye fatigue. LED panel lights can also prevent radiation and will not irritate the skin of pregnant women, the elderly and children.\n1. Can be inlaid on the surface of ceiling, wall and installation body;\n2. It can be hung under the ceiling or the installation body. When mounted on a white ceiling, the entire ceiling is colored, very beautiful, neat and coordinated;\n3. The LED panel light adopts wide-band voltage design (AC85-240V / 50-60Hz), which can be used in various countries in the world; high-power LED uses isolated power supply, constant current or constant voltage drive, high power efficiency, no pollution to the power grid, stable performance ,Safe and reliable;\n4. LED panel light is a new type of surface light source similar to LCD TV backlight technology. The light is soft and the appearance is beautiful. It has been widely favored by European and American merchants. A large number of foreign companies are looking for panel light products with good quality, good service and good price. And suppliers;\n5. The LED panel light seems to be just a simple lighting fixture, but due to its high market positioning, the customer's quality requirements for this product are extremely demanding, plus the product itself involves materials, heat, optics, structure, hardware , Electronics, and other fields, general companies do not have a complete development team and sufficient development experience and subsequent supply chain management capabilities, it is difficult to truly develop successfully, and the market requirements are not clear, so a lot of development costs are invested in exchange for It's just a product that customers don't recognize.\nBuilding G, 13, Lefeng 2nd Road, Maohui Industrial Zone, Henglan Town, Zhongshan City, Guangdong Province, China.","domain":"optical_engineering"}
{"url":"https://www.thesuncad.com/inspection-services.html","date":"2024-03-01T11:12:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475238.84/warc/CC-MAIN-20240301093751-20240301123751-00710.warc.gz","language_score":0.9043547511100769,"token_count":238,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__16431418","lang":"en","text":"3D digitizing, 3D modelling, point cloud inspection, reverse engineering, rapid prototyping or copy milling: this system is an all-purpose metrology tool for a multitude of applications.\nFreedom of movement: with a fully integrated and certified RS3 laser scanner, this is an all-purpose metrology system for almost any measurement need. Point cloud inspection, product benchmarking, reverse engineering, rapid prototyping, virtual assembly or CNC milling are just some of the typical laser scanning applications that can be added to the rich portfolio of touch-probe measurement applications. The integrated laser scanner is designed to capture data from almost any object surface.\nIt does not need warm-up time or additional cables and controllers. Scanner and probe measurements are combined in the same software session.\nAll models of the ROMER Absolute Arm are available in three levels of accuracy, allowing you to select the right measuring arm for your application requirements and budget. The 73 Series and 75 Series arms offer excellent price/performance ratios for everyday metrology operations, while the 77 Series – the most accurate ROMER Absolute Arm ever produced – is ideal for specialist or high-end measurement applications.","domain":"optical_engineering"}
{"url":"http://www.osram-group.de/en/innovation/foodscanner","date":"2017-05-24T02:15:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463607731.0/warc/CC-MAIN-20170524020456-20170524040456-00291.warc.gz","language_score":0.9461070895195007,"token_count":312,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__150667828","lang":"en","text":"Infrared spectrometers use part of the light spectrum that is invisible to the human eye. A sensor absorbs these waves and compares their patterns against a database. This tells us which molecules the waves have encountered, and therefore what the item is made of–a bit like a chemical fingerprint.\nTo analyze the pattern, or spectrum, the SCiO scanner is linked to a smartphone via Bluetooth. Using an app, the user states what type of item has been scanned, for example vegetable or meat. That helps the online database to find the right item from countless samples. To carry out a scan, the scanner has to be held close to the food and a blue target light is shone onto the object to be measured. The actual measurement is then carried out by the broadband infrared light generated via the phosphor converter developed by OSRAM.\nThe device can also check medicines and identify any that have been diluted or are counterfeit. With further development the technology could also be of interest for other application areas. Security forces could use it to instantly test suspicious substances. A sensor in the car could check the quality of the fuel being put into it. There are many ways in which the SCiO scanner with broadband infrared LED can help people to lead a better, healthier, and more sustainable life.\nAs Jansen puts the scanner back into its box he says: \"In the future it may be possible to make the sensors small enough to fit directly into smartphones.\" An infrared spectrometer as small as a phone camera. It would be the next revolution.","domain":"optical_engineering"}
{"url":"http://www.phys.ufl.edu/~deserio/simplens/simplens.htm","date":"2022-05-18T04:06:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662521041.0/warc/CC-MAIN-20220518021247-20220518051247-00026.warc.gz","language_score":0.9203284978866577,"token_count":935,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__141856056","lang":"en","text":"In this experiment you will observe and measure the imaging properties of a simple lens.\nYou will need a good lens (magnifying glass), a flashlight, a viewing screen (tri-folded white copy paper), a meter stick and perhaps some modeling clay to hold things in place. You will want to be able to set these items on a flat table about 1 meter wide in an area where the lighting can be dimmed.\nThe most basic optical imaging device is a simple lens like those found in a magnifying glass. These lenses have spherical surfaces and depend on the law of refraction for their image-forming properties. For the level of treatment in this experiment, the imaging properties of a lens is completely specified by giving the lens' focal length. The lens in a good magnifying glass will have a focal length typically around 5-15 cm.\nThe imaging capabilities of your lens can be demonstrated very nicely in a dark room with the picture from a TV set. Position the lens and screen about 2-3 meters from the TV. Adjust the distance between the lens and the screen until you get as sharp a picture as possible on the screen.\nIn the jargon of optics, the TV in this part of the experiment is called the object. The distance from the lens to the TV is called the object distance and given the symbol o. The picture on the screen is called the image. The distance from the lens to the image is called the image distance and given the symbol i. The focal length is given the symbol f.\nMeasure the image distance and record this on the data sheet.\nMove the lens and screen an additional meter from the TV and repeat the measurements of the object and image distances recording your results on the data sheet.\nWhen the object distance is much much greater than the image distance, the image distance will be approximately the focal length of the lens. Thus, the image distances measured above are approximately the focal length of the lens.\nCut out a circular piece of opaque paper (black construction paper can be used) roughly the size of the face of the flashlight. Then fold the circle in half and cut out a wedge shape along the fold so that when the circle is unfolded the cutout will be in the shape of a long pointed triangle that is 1 cm from the pointed tip to the base. Put some tissue paper backing over the triangular hole and tape this (tissue side down) to the face of the flashlight. When the flashlight is turned on the brightly lit white triangle should make a good object suitable for image formation. For the rest of this experiment the triangle will be used as the object.\nBegin by setting the object distance accurately to 20 cm. Adjust the position of the screen (image distance) to get a sharp image of the edges of the triangle. Record the object and image distances on the data sheet. Also measure and record the size of the image of the triangle (tip to base).\nRepeat this procedure as you adjust the distance between the lens and flashlight (object distance) from 20 cm to about 70 cm in steps of 10 cm. Each time you will have to move the screen to reform the image of the triangle.\nSet the screen 50 cm from the lens (i=50 cm). This time, adjust the flashlight (object distance) to get a sharp image. Record again the object and image distances and the size of the image.\nTry to draw a smooth curve through the data points. Remember, no measurements are ever perfect, so it is OK to let the curve miss the data points by a little.\nHint: The theory predicts that 1/o + 1/i = 1/f. Thus, if you construct (from your measured o's and i's) new variables x and y defined by x = 1/o and y = 1/i, the equation 1/o+ 1/i = 1/f can be rewritten y = -1 x + 1/f. This is the equation of a straight line of slope -1 and y-intercept 1/f. Plotting y on the vertical axis vs. x on the horizontal axis, the data points should lie on a straight line with the predicted slope and y-intercept.\nIf you like, take additional data and add these points to fill in your graph more completely.\nDraw the best straight line through your data points using a straight edge. Determine the slope and y-intercept of this line and record these on the data sheet.\nLast modified: April 7, 1995Robert DeSerio / email@example.com","domain":"optical_engineering"}
{"url":"https://ebrary.net/135543/engineering/energy_consumption","date":"2023-06-02T17:55:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648850.88/warc/CC-MAIN-20230602172755-20230602202755-00433.warc.gz","language_score":0.9284535050392151,"token_count":393,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__124496378","lang":"en","text":"The increase in the traffic in carried by optical networks will increase the energy consumption. The elastic optical network has the ability to significantly reduce energy consumption. In combination with sliceable bandwidth-variable transponders (SBVTs), the elastic optical network presents some new features as regards optical traffic grooming and optical layer bypass , which can help to reduce the energy consumption. However, we still are unable to groom traffic optically in a very early stage, and this omission must be tackled.\nThe elastic optical network offers a lower blocking probability compared to traditional optical networks and so can accept higher volumes of traffic. This clearly is a significant advantage in terms of energy efficiency, as the deployment of additional network elements would not only increase cost, but also increase the overall energy consumption. Several energy saving schemes are anticipated, setting some the network elements into sleep mode when the traffic is below a certain threshold. Another interesting topic for future researchers is to analyze the energy efficiency of new protection and restoration schemes for the elastic optical network.\nPhysical Layer Impairments\nAs optical connections may span over many long links, physical layer impairments (PLIs), such as—dispersion, interference, noise, and nonlinear effects accumulate and degrade the signal quality, which affects the quality-oftransmission (QoT). Accounting for PLIs is a challenging issue for network designers, especially if we consider exact models and the interdependencies. Many studies [87,273-275] on PLIs have been carried out for wavelength division multiplexing (WDM) based optical networks. PLIs have a distinct impact on both WDM-based optical networks and elastic optical networks. With the introduction of coherent detection and digital signal processing, impairments that are related to dispersion can be substantially reduced or fully compensated. However, high levels of flexibility make the minimization of these effects more complicated from an algorithmic perspective, which needs further research.","domain":"optical_engineering"}
{"url":"https://kmadevices.com/services/4k-video/","date":"2024-02-23T22:49:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474470.37/warc/CC-MAIN-20240223221041-20240224011041-00363.warc.gz","language_score":0.9400686025619507,"token_count":340,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__101055147","lang":"en","text":"During the apple production process, it is crucial to evaluate the internal health of the apples accurately in order to provide high-quality and healthy products. To achieve this, producers use the NIR (Near-Infrared) spectroscopy method to sort the apples according to their internal health.\nNIR spectroscopy is a technology used to analyze the chemical structure of different types of substances. This method is commonly used in apple production as well. Since the light absorption properties of the compounds in the apple’s internal structure are different, the differences can be detected using the NIR spectroscopy method.\nSorting apples according to their internal health is achieved through the use of the NIR spectroscopy method. In this method, the absorption of infrared light at different wavelengths by the compounds within the apple is measured. This data is used to determine the density and quantity of the compounds inside the apple.\nThe NIR spectroscopy method offers numerous benefits to apple production. Firstly, it provides quick and accurate information about the apple’s internal structure. This speeds up the quality control process for producers and enables apple products to be marketed more quickly.\nSecondly, the NIR spectroscopy method helps apple producers increase their quality and productivity levels. This method not only ensures that producers market only high-quality products but also increases their efficiency, thereby reducing production costs.\nIn conclusion, the NIR spectroscopy method is a crucial technology in sorting apples according to their internal health during apple production. It assists producers in providing high-quality and healthy products while increasing their productivity. Therefore, apple producers should adopt this method to increase the quality and efficiency of their products.","domain":"optical_engineering"}
{"url":"https://fourseasonshg.com/products/swim-goggles-with-uv-protection","date":"2021-10-27T03:06:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323588053.38/warc/CC-MAIN-20211027022823-20211027052823-00390.warc.gz","language_score":0.8787421584129333,"token_count":181,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__100704950","lang":"en","text":"Swim Goggles with UV Protection\nAll swim goggles protect eyes from the irritating effects of water but Swim Goggles with UV Protection shield eyes from the much harsher and seriously harmful effects of UV rays. Water reflects damaging UV rays directly onto our faces and into our eyes so UV protection while swimming is essential and makes sense. We rely on UV protective lenses in our everyday eyewear and now you can have a continuous shield when you need it most. Safeguard your eyesight with Swim Goggles with UV Protection!\n- These goggles feature optic quality polycarbonate lenses an anti-fog coating 100% silicone soft gaskets and silicon straps and they provide 100% UV protection.\n- Adjustable straps make them one-size-fits-all.\n- Optic quality polycarbonate lenses\n- 100% UV protection\n- Anti-fog coated ADD\n30 Day Warranty","domain":"optical_engineering"}
{"url":"http://forum.signalbox.org/viewtopic.php?f=7&t=7656&p=77067&sid=95f8cbeb5040a6d05f48825f31328b56","date":"2017-04-27T20:45:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122621.35/warc/CC-MAIN-20170423031202-00196-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.953917384147644,"token_count":210,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__115420355","lang":"en","text":"A home blade directly infront of a distant blade on the same post.\nThe home spectacle plate with a red lens and clear lens.\nThe distant spectacle plate with a yellow lens and green lens.\nBut, I would imagine that when both blades are horizontal, at stop, the combined yellow lens and red lens would not provide a distinct red light.\nYes, they where so called Coupled Home and distant signals\nbut the Signal shows Red when both blades where Horizontal.\nThe mechanismus of the Signal granted this.\nThe Home arm, in front, had one red Lens and one clear , while the distant arm, in back, had one green lens and one clear . A swinging yellow Lens, pivoted in the Home arm and with a pin in the distant arm running in a slot, was located between the arms, which were both pivoted at top of the arms . When both arms were horizontal, the light from the lamp passed through the empty lens in the distant arm and the red lens in the Home arm.","domain":"optical_engineering"}
{"url":"http://www.roeland.com/HeatMirror.php","date":"2013-05-23T10:34:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368703227943/warc/CC-MAIN-20130516112027-00086-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9044846892356873,"token_count":503,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__130623391","lang":"en","text":"Heat Mirror® insulating glass incorporating Heat Mirror films coated by Southwall Technologies was the world's first commercially produced low-e glass. Since 1980, Heat Mirror insulating glass has been used around the world in structures ranging from single family homes to high profile projects for Fortune 500 companies. This innovative technology has been recognized in the news for its oustanding contributions to the environment though the highest level of sustainable design.\nSouthwall manufactures 12 different coated films which are suspended in the middle of an insulating glass unit to create multiple insulating cavities, creating industry leading performance.\nHeat Mirror units are produced with a wide range of glass products including clear glass, tinted glass and low-e glass, taking advantage of the benefits of film based coatings and glass based technologies to create superior insulating performance, outstanding solar control, while at the same time blocking UV radiation, and reducing outside noise more effectively than double pane glass.\nHeat Mirror technology is based upon a very thin coating which reflects heat back to its source. The 12 different films provide varying levels of visible light and solar control to meet the diverse requirements of the commercial market place. The product designations loosely represent the amount of light transmitted through the coated film. Hence, Heat Mirror 77 will transmit more light than a Heat Mirror 22 product.\nBecause Heat Mirror units are available in a wide variety of films with diverse glass products, the performance needed for almost any project can be realized, making Heat Mirror an ideal choice for almost every application.\n|Heat Mirror® Plus\nHeat Mirror Plus Insulating Glass substitutes one lite of low-emissivity coated glass or tinted glass for the uncoated glass used in the standard Heat Mirror unit. With an optional Argon or Krypton gas filling, Heat Mirror Plus can achieve a U-value of 0.10 (R-value of 10).\nSuperglass Quad Insulating Glass is the most energy-efficient glazing product on the market today. It uses two Heat Mirror films suspended inside an insulating glass unit, creating three air spaces. Featuring a patented tape system for gas retention and a thermally broken, insolating spacer to stop conduction through the edge of the glass, Superglass Quad can achieve an industry-leading U-value of 0.08 (R-value of 12.5).\n* Superior insulating performance reduces energy costs and enhances comfort\n* Superior solar shading reduces expensive cooling costs\n* UV protection helps reduce fading\n* Noise reduction reduces noise pollution","domain":"optical_engineering"}
{"url":"https://www.cy-ind.com/news-show-668641.html","date":"2022-01-21T19:35:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320303709.2/warc/CC-MAIN-20220121192415-20220121222415-00635.warc.gz","language_score":0.9344286322593689,"token_count":296,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__64592452","lang":"en","text":"Headlamp(car lamp housing)\nThe combined headlamp is in the front of the car. It mainly plays the role of lighting and signal. The light emitted by the headlamp can illuminate the road conditions in front of the vehicle body, so that the driver can drive safely at night. The combined headlamp can be divided into halogen lamp and xenon lamp according to the light source, According to the function, it can be divided into (1) low beam lamp, (2) high beam lamp, (3) front turn signal lamp, (4) front position lamp (also known as side marker lamp, indicating the position lamp of the vehicle), and front fog lamp. Fog lamp is not mandatory in national regulations, and is basically equipped for all models.\nCombined tail lamp(car lamp housing)\nThe combined tail lamp is at the rear of the car. It mainly plays the role of lighting and signal. The rear lamp is generally composed of (3) rear position lamp, (5) reversing lamp, (1) brake lamp, (2) rear fog lamp, (4) rear turn signal lamp and retro reflector.\nCornering lamp(car lamp housing)\nA lamp used to indicate a left or right turn to other road users. The regulatory requirements are amber.\nLicense plate lamp is mainly used to illuminate the license plate, so that people can distinguish the vehicle license plate in the dark.","domain":"optical_engineering"}
{"url":"https://www.guardianangeldevices.com/help/types/all-infrared/","date":"2021-12-06T20:55:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363312.79/warc/CC-MAIN-20211206194128-20211206224128-00358.warc.gz","language_score":0.8808836340904236,"token_count":102,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__143666553","lang":"en","text":"What devices are considered all infrared?\nWe only have one model, All Infrared\nHow do the all infrared devices work?\nThe naked eye cannot see any light on this device without some form of night vision. ALL lights are infrared.\nI still do not understand how the infrared lights work; do you have any examples?\nThis video is a customer using our all infrared device with night vision goggles showing how bright the infrared lights really are. https://vimeo.com/379310555","domain":"optical_engineering"}
{"url":"http://speculation.freeby.info/speculation/fair/173/LE-2-Pack-72W-7200lm-LED-Driving-Lights-Waterproof-Off-Road-LED/","date":"2020-01-19T23:07:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250595282.35/warc/CC-MAIN-20200119205448-20200119233448-00223.warc.gz","language_score":0.7338560223579407,"token_count":414,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__238437036","lang":"en","text":"2 Pack 72W 7200lm LED Driving Lights, Waterproof Off Road LED Lights, Daylight White 5000K, Mounting Bracket Included PRODUCT FEATURES Super bright spotlight Efficient heat dissipation Highly energy saving LED lamp beads Waterproof and shockproof design Easy to install ( Provides bottom mounting brackets ) SPECIFICATION LED power: 72W (24×3W) Input voltage: 10-32VDC Luminous flux: 7200LM Beam angle: 30 degree Certification: CE RoHS Color temperature: 6000K-6500K Working Lifespan: 50,000 hours Color rendering index(CRI)> 80 Lamp beads Model: OSRAM3030 Number of lamp beads: 24pcs Waterproof: IP67, Waterproof, dustproof and shockproof Material: Aluminum alloy housing, PC Lens, Aluminum alloy Bracket Package included: 2pc 72w LED Light, Mounting Bracket, install accessories. Note: The LED light is not dimmable APPLICATIONS Ordinary vehicles: Off-road, Jeeps, Cars, 4x4, Motorcycles, SUV, Bus, Truck, Trailer, Forklift etc. Construction vehicles: Excavator, Dozer, Road Roller, Crane, Tractor, Grain Drill, Mower, Snowplow etc. Special vehicles: Fire engine, Rescue vehicle, ATV, Police car. Other Lighting: Camping, Mining, Garden, Backyard, Garage, Indoor, Construction, Back up light, Boat Lighting etc. MAINTENANCE FREE Extremely long lifespan reduces re-lamp frequency. Save labor cost to replace bulbs with short lifespan. We promise 2 years warranty.\nOutdoor Lighting,LED Flood Light,Promotion > NEW ARRIVAL,LED Flood Light > LED Work Lights,Outdoor Lighting > LED Driving Lights,Shop By Application Type\nLE 2 Pack 72W 7200lm LED Driving Lights, Waterproof Off Road LED\nSpecifications of LE 2 Pack 72W 7200lm LED Driving Lights, Waterproof Off Road LED","domain":"optical_engineering"}
{"url":"https://www.smartprix.com/bytes/xiaomi-redmi-64mp-camera-technology-revealed-india-launch-in-q4-of-2019/","date":"2022-06-30T07:38:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103669266.42/warc/CC-MAIN-20220630062154-20220630092154-00792.warc.gz","language_score":0.9361762404441833,"token_count":535,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__110000079","lang":"en","text":"After a barrage of 48MP camera smartphones in the first half of 2019, get accustomed to hearing OEMs advertise ’64MP camera phone’ in the latter half of the year. While Realme is showcasing its 64MP Quad Camera technology tomorrow in India, Xiaomi decided to steal its thunder and show off its own 64MP camera technology and its future plans in China one day in advance.\nAt a media gathering, the Xiaomi’s sub-brand Redmi revealed a few details of its 64MP high-megapixel sensor phone. The company confirmed that it is indeed using Samsung’s 64MP ISOCELL Bright GW1 sensor that was announced a few months back. The announcement was made by Bin Lin, President and co-founder, Xiaomi, in the presence of Jesuk Lee, Vice President, Head of Sensor Design for Samsung Electronics.\nWhat So Special About 64MP GW1 Sensor?\nThe Samsung G1 sensor huge 1/1.7″ sensor with 1.6-micron pixels which results in more light to capture. It is based ISOCELL Plus technology which utilized pixel-to-pixel barrier structure. What it does is partial cuts down light interference which results in better color reproduction. With the advantage of pixel size, ISOCELL Plus, Samsung also uses Quad-PD (aka TetraCell Technology) which combines four cells into one to take 16MP images in low-light.\nWhile praising the GW1 sensor and its features, Xioami also talked about its Smart ISO feature uses Dual Conversion Gains (DCG) Technology. What DCG essentially does is it uses low ISO in brightness areas and pushes up ISO in underexposed areas of a scene. This results in a better signal-to-noise ratio in low light photography.\nThe upcoming Redmi 64MP camera phone with GW1 sensor will be able to capture images as big as 9248×6936 pixels. In comparison to existing 48MP camera phones, it will have 38% more pixels. Apart from these, the sensor is compatible with real-time hardware-supported high dynamic range (HDR).\nXiaomi Redmi 64MP camera phone India launch\nThe 64MP sensor based Redmi phone will launch in China in the next quarter. Xiaomi India has also confirmed the GW1 sensor backed by a Redmi 64MP camera smartphone will be announced in India in Q4 of 2019. Will it be the Redmi Note 8 Pro which has made some headlines recently. Well, that remains to be seen.\n— Redmi India for #MiFans (@RedmiIndia) August 7, 2019","domain":"optical_engineering"}
{"url":"https://paulreynolds.com/blog/a_focusing_and_dof/index.html","date":"2022-10-02T05:37:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337287.87/warc/CC-MAIN-20221002052710-20221002082710-00733.warc.gz","language_score":0.9557448029518127,"token_count":2503,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__152747769","lang":"en","text":"Focusing on a single object is easy, but what if you want both near and distant objects to be sharp? For this you need to know how to control depth of field.\nWe all know that to make your subject come out sharp you need to focus on it. And modern autofocus systems operate with such speed and precision that this is almost guaranteed. They can check the focus at many different points in the frame and select the correct one automatically, and even track subjects as they move across the frame (predictive autofocus). But what they don't take into account is 'depth of field', which is a much more important measure of a picture's overall sharpness. It's ignored not because it's unimportant, but because it's too difficult for a machine like a camera to evaluate.\nWhat is depth of field?In theory, only subjects a precise distance from the camera (the distance you've focused on) will be perfectly sharp. In practice, the sharpness falls away slowly, so that objects some way behind the subject or nearer the camera can still look quite sharp even if, technically they're out of focus. In other words, there's quite a bit of leeway before objects start to look out of focus. This leeway is the 'depth of field', and it has a big impact on the appearance of the photograph. For example, in a landscape shot you might want everything sharp, from the wooden stile just a few feet from the camera to the mountain peaks in the distance. In other words, you want maximum depth of field. Alternatively, for a romantic portrait shot you might want to throw a distracting background out of focus. For this, you would want 'shallow' depth of field.\nUse it to your advantage\nThe point is that depth of field can be worked out and used to your advantage. You can control the depth of field by the way you adjust the camera. The camera's autofocus system can focus on a specific object, but that's about its limit. Only you, the photographer, can take the next step and control the depth of field. Most photographers are aware that wide lens apertures produce shallow depth of field and small lens apertures produce greater depth of field. The optical science behind this is complex, but what it boils down to is that at smaller lens apertures, the sharpness of out-of-focus objects falls away more slowly. In other words things are much nearer or further away before they start to become blurred.\nDepth of field is also affected by the focal length of the lens. The longer the focal length, the shallower the depth of field. This is one reason why portrait photographers prefer longer-than-average focal lengths - because this usually blurs the background. Conversely, wide-angle lenses are useful to landscape photographers because it's easy to get everything in the frame sharp, right from the foreground to the distant horizon. Depth of field also changes according to the distance of your subject - the focus distance. The greater the focus distance, the greater the depth of field. Similarly, the closer you focus, the more shallow the depth of field becomes. This is why depth of field isn't a problem with subjects some way from the camera, but a real headache with close-ups. You'll seldom see a close-up which is sharp right from the foreground to the background, unless the scene has been set up very carefully by the photographer to be as two-dimensional as possible.\nThe fourth factor in depth of field is one which is seldom examined in any great detail, but which is probably one of the most important. The larger the sensor, the shallower the depth of field. It's the sensor's physical size that's the key factor here. A DSLR offers much less depth of field than a compact digital camera, and a full-frame DSLR offers even less. This isn't strictly due to the size of the sensor but actually the required focal length of the lens. For example, on a full frame DSLR, a photographer might use a 50mm lens for a portrait shot. If he were using a digital SLR with an APS-C size sensor, he would require a 30mm lens to get the same angle of view. However, as already discussed above, the wider 30mm focal length will give greater depth of field than a 50mm focal length. This is one of the reasons many portrait photographers chose a camera with a large image sensor. This is exaggerated even more with compact digital cameras where the sensor size is about 10 times smaller and therefore the camera uses, for example, a 6mm lens which gives tremendous depth of field.\nAll these factors intermingle to make depth of field a potentially confusing business. In practice, though, the decisions are generally pretty straightforward. In any one situation, the camera you're working with is already decided, and you've probably settled on the camera position (the subject distance) and the focal length (zoom position) needed to compose the shot nicely. All that's left for you to adjust the depth of field with is the lens aperture.\nSo how do I work it all out?\nYou're no longer dealing with just the focused distance - there's also a near limit' (the nearest distance where objects will still look sharp) and the `far limit' (the farthest distance where objects will still look sharp). The distance between the near limit and the far limit is the depth of field. But how do you work out what the near limits and far limits are?\nWith fixed focal length (non-zoom) lenses, it's all rather easy. The lens has a focusing scale marked on the barrel and an index mark showing the distance you are focused at. Either side of this index mark are further pairs of marks, usually colour-coded so that wherever you're focused, the `f8' markers (for example) would indicate the near and far limits of the depth of field on the distance scale. Many lenses include several sets of markers for different lens apertures.With these, managing depth of field becomes a lot easier and you can start to plan your shots much more effectively. Let's imagine you want to get both a nearby gate and a distant hillside sharp at the same time. A modern camera will offer to focus on one or the other, but both are wrong, or at least highly inefficient choices. Instead, the ideal focus point will be somewhere in between, so that the gate is just within the near limit of the depth of field, while the hillside is just within the far limit.\nRather than focusing on one thing in particular, think in terms of zones of sharp focus and how to make sure all the principal elements in your photography can be made to fall within it. Modern cameras make this harder. First of all, you have to disable that sophisticated and expensive AF system and focus manually instead. Second, zoom lenses don't have depth of field markings. This is because the depth of field changes with focal length. With the exception of certain ancient 'trombone' zoom designs, depth of field markings are no longer possible.\nA rather neat trick is to set the far limit at infinity; you'll make sure that distant objects remain sharp, while maximising the depth of field towards the camera. This is a well-known technique known as 'hyperfocal' focusing.As well as telling you the distance to focus at, they tell you the nearest distance at which objects will still be sharp. You look at the scene in front of you, work out how near the nearest object is and look up the lens aperture you need to use.\nIt's important, then, to understand the significance of depth of field and how to manipulate it if you want to properly control the sharpness in your photos. One general rule worth bearing in mind is that to get two objects at different distances to be equally sharp, you need to focus at a point one third of the distance between them. This changes slightly with close-ups, where the focus distance should be nearer halfway between them.\nMany DSLRs have depth of field preview buttons. Normally, all viewing is carried out with the lens at full aperture, regardless of the aperture value that's going to be used for the exposure. The camera stops down to the required aperture when the picture is taken. Depth of field previews, however, stops the lens down manually. This darkens the viewfinder image, but also gives an idea of how much depth of field there will be. Depth of field preview buttons work, but the viewfinder image is often too dark for details to be clearly visible, and it's difficult to judge the exact sharpness levels as a result. With digital cameras you can simply take the shot, examine it close-up in Playback mode and re-shoot it if you need to. However, it's less hassle to be able to get the depth of field right first time.Instead of relying on your camera's autofocus and program AE exposure modes , try switching to manual focus and manual aperture control. Remember that photographs don't consist of a single plane of sharp focus, but an extended 'zone' of sharpness which you can control. You really can point and shoot - and not because you've invested in the latest and most expensive technology, but because you're using a principle that even the smartest camera has yet to exploit.\nCreative Use of Depth of Field\nLandscape photographers generally weigh sharpness all the way from the far distance right up to the foreground, and this is where an understanding of 'hyperfocal distance' proves crucial.\nMany street photographers don't bother with focusing at all as it's too time consuming. Instead, you can use a knowledge of depth of field to 'zone focus'. Here, you choose a lens aperture and a manual focus distance which gives enough depth of field for any of your usual subjects. For example, at f8 everything from 1m to 8m might be acceptably sharp.\nShallow Depth of Field\nShallow depth of field is not always a bad thing. In portraits it helps blur unwanted backgrounds, and it can also be used to make the main subject appear sharper. Here, these frost-covered railings appear to have even more 'bite' because their sharpness contrasts with the soft background. You can achieve shallow depth of field with longer focal lengths and wider lens apertures.\nDepth of Field And Close-Ups\nDepth of field is a perennial problem for close-up photographers, and the closer you get, the worse it gets, to the point where even at your lens's minimum aperture the depth of field is only a few millimetres. Here, for example, the photographer had to settle for just keeping the bloom's stamens sharp - there was no way of keeping the nearest and farthest petals sharp too.\nCircles of Confusion\nWhen a point in the subject is perfectly focused it should appear as a point on the image sensor. But when it's slightly out of focus it is instead reproduced as a small disc. The technical term for this is `circle of confusion', and you'll find it comes up frequently in discussions about depth of field. If this circle of confusion is small enough, the subject will look sharp even if it is slightly out of focus. The point is that the maximum size for the circle of confusion varies according to the camera or, specifically, the sensor size. Compact digital cameras have much smaller sensors than DSLRs, which means images must be magnified much more to make the same-sized prints. This in turn means that the maximum allowable size for the circle of confusion for compact cameras is smaller than that for DSLRs. For the record, the usual circle of confusion size used for 35mm film or full-frame DSLRs is 0.03mm, for APS-C sized DSLRs it's 0.02mm, and for compact digital cameras it's 0.005mm. The circle of confusion value is part of the mathematical calculations used to work out depth of field figures.\nTo find out the depth of field and hyperfocal distance of any given lens and aperture combination, see the Depth of Field Calculator utility.","domain":"optical_engineering"}
{"url":"https://www.richphotography.co.za/creators/photography-101/aperture-what-does-it-do","date":"2022-07-05T19:03:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104597905.85/warc/CC-MAIN-20220705174927-20220705204927-00160.warc.gz","language_score":0.9120075702667236,"token_count":355,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__278462708","lang":"en","text":"By shooting only in manual, you will make your life easier from here on out...so lets get to it.\nApeture is a setting controlled on your camera, that allows you to blur the background or put more in focus. The blur is often referred to as Bokeh.\nAperture is measured by a number known as the “f” number.\nEg: f1.4, f8, f22 etc\nThe value to which you can set the “f” number is determined by the lens you have, not your camera.\nEg. Some lenses are f3.5 - f5 or perhaps just f2.8 etc\nA high aperture is f1.4\nA low aperture is f22\nA high aperture is a low “f” number and a low aperture is a high “f”number...confusing right, but you will get it soon.\nSo what does Apeture do inside your lens?\nSo...the bigger the aperture hole (ie the smaller the f number/high aperture eg: f1.4) the more light the lens will let through.\nAlso the bigger the aperture hole, the shallower the depth of field.\nThe smaller the aperture hole (ie the higher the f number/low aperture eg: f12) the less light the lens will let through.\nAlso the smaller the aperture hole, the deeper the depth of field.\nTherefore to blur the background set your camera to the lowest f number for your lens (a high aperture)\nOr to put more in focus, set your camera to a higher f number (a low aperture).\nAny questions drop them in the comments below.","domain":"optical_engineering"}
{"url":"http://mechcrunch.com/2019/03/15/the-v-class-facelift-now-with-high-beam-assistant-plus/","date":"2019-05-27T08:17:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232262029.97/warc/CC-MAIN-20190527065651-20190527091651-00329.warc.gz","language_score":0.9248488545417786,"token_count":268,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__107108094","lang":"en","text":"With the facelift of the Mercedes-Benz V-Class, the High-Beam Assist Plus is now also available, which will be available as an option for the LED Intelligent Light System. In contrast to the previous system – which could only switch between dipped and high beam, the new high-beam assistant now also works adaptively.\nThe LED Intelligent Light System for the V-Class – in the model series 447 of the equipment line EXCLUSIVE standard equipment – can be optionally extended with the High-Beam Assistant Plus.\nIn contrast to the pre-model, the new high-beam assistant Plus can not only switch between dipped and high beam, but now works adaptively and regulates the light distribution as the traffic situation allows – with low beam, high beam or partial high beam. For this purpose, the other road users are left out of the cone of light and thereby blinded as little as possible. Recognized oncoming or preceding vehicles detects the system and continuously adjusts the headlight range to the distance so that the headlight cone ends in front of the oncoming vehicles.\nThe operation of the system remains the same – as well as the display for the driver in the instrument cluster – the same. The system itself is available for 214,20 Euro extra charge.\nImages: Daimler AG","domain":"optical_engineering"}
{"url":"http://us3dphoto.com/about-crystal-engraving/","date":"2024-04-20T18:59:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817674.12/warc/CC-MAIN-20240420184033-20240420214033-00659.warc.gz","language_score":0.9301971197128296,"token_count":535,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__5502536","lang":"en","text":"About 2D and 3D Crystal Engraving\n3D Crystals proves innovative mementos by combining technology and imagination. Designed to last forever, they are an heirloom that you can pass down for generations. Only the highest grade of optical crystal is chosen for 3D Photo products as this material is free of any impurities, and sparkles when polished to our specifications. Choose from a variety of different shapes and sizes! You can customize your crystal to suit your home or office decor.\nPhoto crystals are created using a special laser that focuses its concentrated beams of light to a precise point below the surface of the crystal. Each bright point in the image is plotted in the final crystal piece. The laser then uses these locations as three-dimensional coordinates. The laser then moves to the next coordinate and makes another etched point. Finally, enough points are created to reproduce the design deep within the crystal. Any design, photo, animal, human form, or product can be engraved with stunning realism.\nAs laser beams are non-invasive, no marks or blemishes are left on the surface of the crystal. When viewed from any angle the intricate design is viewed much like a three dimensional sculpture.\nOur unique software can turn your 2D photos into a mesmerizing 3 dimensional design in a matter of moments! Then, using our state-of-the-art laser technology, we etch the 3D image into a into a flawless piece of optically clear solid crystal designed to last forever.\nTo create a 2D Photo Crystal our designers transform your image into a laser ready file, once lasered, the image appears flat within the crystal when viewed from the side.\nThis is called Vitreography, which is a fine art printmaking technique that uses a float glass matrix instead of the traditional matrices of metal, wood or stone. This artform was invented by American glass artist Harvey Littleton and is an excellent way to externalize your photo into a high-quality optical crystal.\nWith proper care, your crystal will look stunning forever.\nCrystal is glass and should be treated as such. Care should always be exercised in its handling. The interior of your crystal will always stay pristine and as vibrant as the day you received it. To clean the exterior, wash with mild soap and warm water. Use a glass cleaner product if necessary. Dry with a dust free cloth.\nSub-surface engraving is permanent, lasting as long as the crystal is intact. Guaranteed never to discolor or fade, you can be sure that your crystal will look exactly the same years later.","domain":"optical_engineering"}
{"url":"https://stillen.com/products/2019-2022-ram-2500-3500-4500-5500-nova-series-led-projector-headlights-black-alpha-rex-880553","date":"2024-04-20T16:01:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00583.warc.gz","language_score":0.9028494358062744,"token_count":617,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__146589310","lang":"en","text":"19-20 Ram 2500/3500/4500/5500 ( need extra converters for stock LED projector headlights, please select the option from the top )\nBuilt-in Osram LED\nThese Ram 2500/3500/4500/5500 NOVA-Series projector headlights fit the following models:\n19-22 Ram 2500/3500/4500/5500 ( need extra converters for stock LED projector headlights, please select the option from the top )\nThese Ram 2500/3500/4500/5500 NOVA-Series projector headlights are with our quad projector design. We use our signature 3D ice-cube projector lens to develop these Ram 2500/3500/4500/5500 NOVA-Series headlights, with a surrounding switchback light tube for DRL in white LED and sequential turn signal tube in amber LED; in addition, the bottom is with sequential turn signal in amber LED. The headlights also come with an activation light, which is a light sequence that turns on when you unlock your Ram. The inner projector is for high beam, while the 3 outer projectors are for low beam.\nWe compose these Ram 2500/3500/4500/5500 NOVA-series projector headlights with our patented rectangular projector lens. The projection cut-off line is perfect for American LHD regulation.\nOur Ram 2500/3500/4500/5500 projector headlights come with chrome, black and alpha-black housing. The chrome housing gives your truck a stock housing look and matches your truck if you have a lot of chrome accessories. On the other hand, the black housing gives your truck a sporty look and easily matches any color truck and front grill. The alpha-black housing is our specially designed housing that has the glossy look mixed with the black paint, as well as a smoked light tube that will give your truck an all-black sporty and luxury look at the same time. Read this article to learn more detail about our headlights color housing.\nOur Ram 2500/3500/4500/5500 projector headlights are made of polycarbonate plastic lenses. We also apply a layer of anti-fog agent on the headlights lens; thus, it allows better light output in extreme weather. In addition, we also apply another coating to protect the lens against yellowing and oxidation.\nOur Ram 2500/3500/4500/5500 projector headlights are compliant with SAE and DOT FMVSS108 regulations. Moreover, all our products are certified to ISO-9000, ISO-9001 and ISO-9002. Most importantly, we inspect every detail of the lights to make sure we are satisfied and so are our customers.\n- choosing a selection results in a full page refresh","domain":"optical_engineering"}
{"url":"http://wucci.wustl.edu/Facilities/Cryo-Electon-Microscopy","date":"2017-09-21T10:23:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818687740.4/warc/CC-MAIN-20170921101029-20170921121029-00539.warc.gz","language_score":0.8997023701667786,"token_count":976,"dump":"CC-MAIN-2017-39","global_id":"webtext-fineweb__CC-MAIN-2017-39__0__154598513","lang":"en","text":"The FEI Titan Krios G2 300kV Cryo-Transmission Electron Microscope is the premier cryo-TEM that is available for both single particle averaging and 3D tomography of vitrified samples. Equipped with a high-brightness field emission gun (X-FEG) and a high-stability 300kV high-tension (HT) generator, the system easily facilitates the high-resolution, sub-nanometer scale imaging of frozen biological specimens. The electron optical column is equipped with ConstantPower™ lenses, which have optimized magnetic circuitry designed to reduce cross talk and keep beam hysteresis to a minimum. This platform is also equipped with an image corrector that removes the increased spherical aberration present due to the larger pole-piece gap of the C-TWIN objective lens, which is required to accommodate large angle specimen tilts in tomographic data acquisition. In addition, the system is equipped with a unique, one-of-a-kind cryogenically cooled sample handling and auto-loading system. The Titan Krios G2 platform has been configured with two detection cameras, a scintillated CMOS camera (FEI Ceta), which will be used for regular TEM/STEM imaging and diffraction applications and an energy-filtered Direct Electron Detection camera (Gatan K2 Summit on a GIF energy filter) for the low dose imaging of frozen biological specimens. In addition, the platform is equipped with two other capabilities, phase contrast imaging and STEM imaging. The phase contrast system almost entirely removes the necessity to acquire images of low contrast objects under beam defocus conditions. Finally, the STEM imaging functionality is essential in high-resolution studies of cellular macromolecules in situ.\n- Sample Auto-loading System - allows twelve independent samples to be loaded into a cassette, which can be transferred into the auto-loading system for delivery into the Titan Krios for imaging. The auto-loader is maintained at liquid nitrogen temperatures to protect the samples from any environmental factors, and each individual sample holder (AutoGrid) is robust and protects the sample against deformation and / or damage.\n- Ceta CMOS camera - The Ceta is a 16 Megapixel digital camera designed specifically for regular TEM/STEM imaging. The large field of view and small pixel size (a characteristic of CMOS sensors) allows a fast read-out for dynamic experiments and is capable, of recording full-frame 4k x 4k images at 30 fps and a reduced field of 512 x 512 at > 250 fps. The camera can also easily switch between this fast mode and high-resolution mode with ease.\n- Gatan K2 Summit Direct Electron Detector with GIF Energy Filter - The combined Gatan K2 Summit Direct Electron Detection camera and GIF energy filter – the “BioQuantum 967” allows for the direct detection of electrons at high sensitivity. In addition, the presence of the GIF energy filter allows the preferential detection of zero-loss electrons, thus serving as an additional mechanism to enhance the contrast of unstained, vitrified biological specimens.\n- Cs Aberation Corrector - The C-TWIN objective lens with its larger pole-piece gap is essential for high tilt angle tomographic acquisitions. Its symmetric design allows for the changing of the accelerating voltage without adjusting the stage z-position. Additionally, it ensures that there is no performance compromise, or any re-alignment between TEM and STEM imaging modes. However, whilst important for tomography, the larger pole-piece gap in the C-TWIN objective lens increases spherical aberration. The addition of an image corrector removes this added spherical aberration (Cs) thus restoring the TEM/STEM resolution to that of a Titan microscope platform with a smaller pole-piece separation.\n- Volta Phase Contrast System - A major issue in the imaging of unstained, vitrified samples is the lack of electron density, and thus contrast in the acquired images. A new, and cutting-edge approach that almost entirely removes the need for the addition of beam defocus is phase contrast imaging. By separating the phases of elastically and inelastically scattered electrons that pass through the sample by 90o, the in-focus contrast in the imaging plane can be drastically improved, which is beneficial in the imaging of weak phase objects, such as vitrified biological specimens.\n- STEM detector - The ability to scan the electron beam whilst acquiring the transmitted electron signal, a so-called “STEM” image is essential in high-resolution studies of cellular macromolecules. The incorporation of STEM functionality onto the Titan Krios G2 platform increases its versatility without compromising any of the other imaging modes of the microscope (TEM, EFTEM etc).","domain":"optical_engineering"}
{"url":"http://vision-correction.com/services/orthokeratology-lenses-for-wearing-at-nighttime/","date":"2020-07-05T12:52:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655887360.60/warc/CC-MAIN-20200705121829-20200705151829-00576.warc.gz","language_score":0.9638075828552246,"token_count":500,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__191040363","lang":"en","text":"In Russia, according to various city health departments and expert estimates, at least 40% of high school students in urban schools have some degree of myopia. Myopia actively progresses between the ages of 6 and 17. It is during this period that it is very important to be able to intervene in the irreversible process as early as possible and slow it down as much as possible because children and adolescents still have a whole life ahead! The quality of life of a person with high myopia degree is reduced – he constantly lacks visual information, and without means of vision correction is almost helpless.\nOrtho-K therapy eliminates all the restrictions during wakefulness associated with wearing glasses and ordinary contact lenses — you can run, jump, swim, rub your eyes, etc. This is also very important specifically for children, because they usually lead an active lifestyle and, due to their age, may not fully understand what threatens violation of the rules for wearing contact lenses (for example, getting into eyes with dirty hands).\nFinally, children usually spend the night at home and are under the control of their parents, which ensures timely and correct putting on and removing Ortho-K lenses, as well as timely contact with a specialist for follow-up care.\nHow night lenses work\nThe human cornea is covered on the outside with several layers of integument cells. When a myope wear an Ortho-K lens (shown in orange), it creates hydraulic forces that cause the epithelium to change shape (shown by yellow arrows). As a result, in the center of the cornea, the number of layers of the epithelium decreases by 1—2, and on the periphery, it increases by 1—2. The central part of the cornea becomes flatter, its optical power decreases, the image focuses on the retina, and the person sees well. This new form of the cornea and good vision persist for some time (until a deep evening or longer), then the effect begins to decrease slowly. If you do not wear a lens, the corneal epithelium gradually restores its former structure, and initial myopia returns.\nHyperopia and astigmatism are corrected by a similar mechanism. For this, other designs of Ortho-K lenses are used that make the cornea in the center more “steep” (convex) or reduce its toricity (toricity is the geometry of the cornea with astigmatism).","domain":"optical_engineering"}
{"url":"https://www.kirkscubagear.com/shop/snorkeling/swim-triathalon-surf/revo-sunglasses/","date":"2023-05-28T10:10:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643663.27/warc/CC-MAIN-20230528083025-20230528113025-00294.warc.gz","language_score":0.8933528065681458,"token_count":353,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__110115008","lang":"en","text":"Revo Sunglasses :: 5 left in stock Aug 2018\nMade in ITALY\n- Acetate frames\n- Ideal for sports and active living\n- Lightweight frames are ideal for withstanding extreme temperature conditions\n- NEOPHAN GLASS lenses filters light waves naturally, enhancing color and heightening contrast. This means you get even brighter color and sharper vision through a wafer-thin lightweight 1.8mm lens\n- All Revo lenses are equipped with polarizing filters to protect your eyes from reflected glare from water, snow, sand, or road surfaces, giving you perfect vision, wherever you are\n- Revo’s revolutionary Oleophobic coating is more than simply water resistant: it also repels all oil-based substances, including grease, oil and make-up. Non-smudge lenses that are quick and easy to clean\n- The Revo gradient flash mirror system maximizes protection against direct glare, its so subtle, you won’t know its there\n- Six layers of anti-reflective coating on the back of the lens eliminate bounce-back glare, preventing irritating light interference, ensuring total comfort\n- Revo lenses filter up to 90% of blue light waves. They are designed to allow the necessary amount of blue light to enable clear color definition, while blocking the dangerous waves that can cause blue blur, hazy vision and eye strain\n- Help protect the eyes from strong sunlight that can harm the conjunctivae and corneas of the eyes\n- Sunglasses are the most widely available ophthalmic devices sold over the counter that are regulated by the FDA.\nManufacturers Warranty from my supplier\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"https://www.galesburgelectriclighting.com/semiconductor-green-lighting-solar-led-lighting-system/","date":"2023-12-04T22:58:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100535.26/warc/CC-MAIN-20231204214708-20231205004708-00098.warc.gz","language_score":0.9461869597434998,"token_count":1550,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__36489315","lang":"en","text":"At present, the electricity consumed by lighting accounts for about 20% of the entire electricity consumption. Reducing the electricity consumption for lighting is an important way to save energy. In order to achieve this goal, the industry has researched and developed a variety of energy-saving lighting appliances, and achieved certain results. However, the requirements for “green lighting” are still far away, and it is imperative to develop and apply new types of light sources that are more efficient, reliable, safe, and durable.\nAs an emerging green energy, solar energy has been quickly promoted and applied with its unparalleled advantages. As the fourth-generation new light source LED, it has been effectively used in urban lighting and beautification, road lighting, courtyard lighting, indoor lighting and other lighting applications in various fields. Solar LED lighting systems, especially in remote areas without electricity, solar LED lighting systems have a wide range of application prospects.\nWith economic development, China’s lighting power consumption will be greatly increased, and the research and application of green energy-saving lighting will receive more and more attention.\nAs a cold light source product, solar LED lighting system has the characteristics of high cost performance, green environmental protection, safety and reliability, stable quality, long service life and simple installation and maintenance. It can be widely used in green space lighting, highway lighting, advertising light box lighting, urban modeling landscape lighting and home lighting systems, but the high one-time investment of solar LED lighting system is the bottleneck of its development.\nIn the 1990s, semiconductor green lighting has entered a period of real rapid development. A large number of various lighting fixtures combined with solar cells and LEDs have been widely used. The research fields of semiconductor green lighting systems include:\n(1) Research on micro-power controllers and high-efficiency LED devices in solar LED lighting systems.\n(2) Research on high-efficiency and long-life energy storage technology in solar LED lighting systems.\n(3) Research on high-efficiency LED lighting fixtures.\n(4) Research on the optimal matching between solar cells and LEDs.\nIn addition, a dedicated semiconductor lighting control chip was developed, and a module was designed on this basis, as shown in Figure 1, it has solar cells on the front and special semiconductor lighting control chips and LEDs in “soft packaging” on the back. It is particularly suitable for the field of urban landscape lighting, and it is also suitable for road lighting.\nAt the 15th International Photovoltaic Science and Engineering Conference, Sharp exhibited a solar cell glass curtain wall with LEDs installed on the back of their design. This new type of glass curtain wall composed of solar cells and LEDs is shown in Figure 2.\nAt present, people’s understanding of semiconductor green lighting is the narrow semiconductor green lighting that stays on LED lighting. Since solar cells are a new semiconductor energy source with great development potential, there is every reason to look at semiconductor green lighting from the system: It should be a semiconductor power generation, a semiconductor control circuit and semiconductor LED light source composed of a pollution-free, the most ideal lighting system for human beings, it can also be called semiconductor green lighting in a broad sense.\nThe solar cell and the LED need to be connected with a relatively complicated, even very complicated control circuit, and the control circuit is completely completed by semiconductor devices, that is, by countless PN junctions. In the independent semiconductor wall green lighting system, the battery needs to be charged and discharged. In order to meet the low voltage and constant current operating characteristics of the LED, it is also necessary to perform high-efficiency voltage and current conversion and many controls such as automatic switching on the power supply. Therefore, there should be countless PN junctions between the two PN junctions of solar cells and LEDs, which form a real semiconductor green lighting.\nSemiconductor green lighting is not only the task of LED R&D and production departments. It should be the common task of silicon materials, battery manufacturing, solar cell module manufacturing, integrated circuit design and manufacturing, semiconductor power device manufacturing, and LED R&D and production departments. Especially the design of application-specific integrated circuits in the system is very important and urgent. The use of universal standard integrated circuits to manufacture semiconductor green lighting fixtures cannot meet the needs of the market in terms of energy saving and price.\nAs far as solar energy technology is concerned, lighting application is not its main application field, nor is it the field that best reflects its application advantages, but in terms of its manifestation as an energy source, lighting is the most intuitive and easy to be recognized and accepted by the public. However, at the current level, the high cost and low efficiency of solar energy technology as an energy source cannot be avoided. Especially in single lighting applications, if LED technology is not used, solar lighting systems are designed according to conventional methods, often facing its conversion. The electric energy is not enough to supply the embarrassment of the power consumption of the lamps. In this sense, LED has become the first choice for solar lighting applications due to its advantages of low energy consumption under the same visual effect and DC inverter-free during work. The current problems of solar LED lighting systems include:\n(1) The efficiency of the solar photovoltaic system. The total efficiency of a solar photovoltaic system is composed of the conversion rate of the battery components, the efficiency of the controller, the efficiency of the battery, and the efficiency of the load. At present, the conversion rate of solar cells is only about 17%, and the efficiency of controllers and storage batteries are much higher than that of solar cells. Therefore, improving the conversion rate of solar cell modules and reducing the unit power cost are the key and difficult points of solar power industrialization.\n(2) The capacity of solar cells. At present, it is difficult to use solar-powered LED lighting fixtures for main road lighting. The lighting of main roads on highways has higher illuminance requirements. In terms of the current conversion efficiency and price of solar cells, this requirement cannot be met. However, in the near future, with the improvement of technology, the application of solar LED lighting on the main roads of highways will definitely become popular.\n(3) Solar energy storage components. The service life of solar batteries is more than 25 years, and the service life of ordinary batteries is 2 to 3 years, so batteries are the weakest link in solar LED lighting systems. Energy storage capacitors can solve this problem to a certain extent. The service life of the energy storage capacitor can reach more than 10 years, and the control circuit is simple, but the expensive price limits its application. At present, it is only applied to some traffic lights and decorative lights. With the development of technology and economy, it will be one of the most promising ideal energy storage components for solar LED lighting systems.\n(4) The quality of solar products. In recent years, solar photovoltaic technology has developed rapidly. However, some products have not formed a series, and the quality is uneven, and there are even many defects in the selection of light sources and circuit design, which reduces the economy and reliability of the products. At the same time, the country lacks corresponding product quality standards and testing systems, which affects the industrialization of solar photovoltaic technology.\n(5) As far as LED technology is concerned, entering the general lighting market is its ultimate goal. Among them, due to product performance characteristics, street lamp applications are its most important breakthrough.","domain":"optical_engineering"}
{"url":"http://pickyguide.com/sports_and_recreation/rifle_scopes_guide.html","date":"2016-05-24T15:38:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-22/segments/1464049272349.32/warc/CC-MAIN-20160524002112-00163-ip-10-185-217-139.ec2.internal.warc.gz","language_score":0.9413225650787354,"token_count":382,"dump":"CC-MAIN-2016-22","global_id":"webtext-fineweb__CC-MAIN-2016-22__0__91995235","lang":"en","text":"Riflescopes, also known as telescopic sights, are attached to rifles and used to provide accurate points of aim for shooting. They consist of a scope base and a scope ring. Some rifles already have built-in scopes, while others use separate scoping devices.\nRiflescopes are commonly used in the police and the military. They give maximum advantage to snipers who rely on concealment and stealth to get close to and target their opponents.\nTypes of Rifle Scopes\nKinds of Rifle Scopes include the following:\nRiflescopes with fixed power\nRiflescopes with fixed power have a magnification measure that cannot be changed. The most common magnification set of these scopes is 4x-32mm. 4x refers to the magnification power that can zoom an object up to four times its original size, while 32mm refers to the diameter of the objective lens measured in millimeters.\nRiflescopes with variable power\nRiflescopes with variable power have a magnification measure that can be changed and adjusted.\nMost models have power rings at the rear where the magnification adjustments are made.\nChoosing Rifle Scopes (Buying tips)\nLens quality: Choose a riflescope made with a high quality lens that produces clear and accurate images. It should have no visible distortions around the edges. For reduced glare and reflection, choose a riflescope with a single-coated lens. It effectively gathers light for a clearer and brighter image. Reticle steadiness: Look for a riflescope made with a reticle that cannot be adjusted easily to prevent unnecessary movements. A riflescope with little or no reticle movement can help you focus at a target even if it is moving.\nLight and brightness: Choose a riflescope with a higher objective lens diameter that allows it to gather more light and brighten the view.","domain":"optical_engineering"}
{"url":"http://replyat.com/GL-guide-can-make-events-invisible.HTM","date":"2023-05-28T00:26:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224643388.45/warc/CC-MAIN-20230527223515-20230528013515-00229.warc.gz","language_score":0.9411263465881348,"token_count":592,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__93775902","lang":"en","text":"Washington: It’s one thing to make an object invisible, like Harry\nPotter’s mythical cloak. But scientists have made an entire event\nimpossible to see. They have invented a time masker.\nThink of it as an art heist that takes place before your eyes and\nsurveillance cameras. You don’t see the thief strolling into the museum,\ntaking the painting down or walking away, but he did. It’s not just that\nthe thief is invisible — his whole activity is.\nWhat scientists at Cornell University did was on a much smaller\nscale, both in terms of events and time. It happened so quickly that\nit’s not even a blink of an eye. Their time cloak lasts an incredibly\ntiny fraction of a fraction of a second. They hid an event for 40\ntrillionths of a second, according to a study appearing in Thursday’s\nedition of the journal Nature.\nWe see events happening as light from them reaches our eyes. Usually\nit’s a continuous flow of light. In the new research, however,\nscientists were able to interrupt that flow for just an instant.\nOther newly created invisibility cloaks fashioned by scientists move\nthe light beams away in the traditional three dimensions. The Cornell\nteam alters not where the light flows but how fast it moves, changing in\nthe dimension of time, not space.\nThey tinkered with the speed of beams of light in a way that would\nmake it appear to surveillance cameras or laser security beams that an\nevent, such as an art heist, isn’t happening.\nThe scientists created a lens of not just light, but time. Their\nmethod splits light, speeding up one part of light and slowing down\nanother. It creates a gap and that gap is where an event is masked.\n“You kind of create a hole in time where an event takes place,” said\nstudy co-author Alexander Gaeta, director of Cornell’s School of Applied\nand Engineering Physics. “You just don’t know that anything ever\nThis is all happening in beams of light that move too fast for the\nhuman eye to see. Using fiber optics, the hole in time is created as\nlight moves along inside a fiber much thinner than a human hair. The\nscientists shoot the beam of light out, and then with other beams, they\ncreate a time lens that splits the light into two different speed beams\nthat create the effect of invisibility by being too fast or too slow.\nIt is the first time that scientists have been able to mask an event\nin time, a concept only first theorized by Martin McCall, a professor of\ntheoretical optics at Imperial College in London.","domain":"optical_engineering"}
{"url":"https://visolit.netset.se/product/Bildskarmar-TV/Bildskarmar/Eizo/EIZO-FlexScan-EV2451-WT?prodid=3557705","date":"2022-01-28T08:02:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305423.58/warc/CC-MAIN-20220128074016-20220128104016-00069.warc.gz","language_score":0.8120665550231934,"token_count":285,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__220443960","lang":"en","text":"EIZO FlexScan EV2451-WT\nLED-skärm - Full HD (1080p) - 23.8\"\nWith even further improved energy efficiency, and an even thinner bottom bezel, the EV2451 combines space saving with energy saving. The monitor features ultra-slim bezels on the sides. Electrostatic switches are placed on the front of the monitor for easy adjustment of monitor settings. Furthermore the bezels are flush with the screen surface, making a completely flat screen perfect for multi-monitor configurations.\n- Ultra-thin bezels on all four sides\n- Flicker-free viewing\n- Auto brightness control\n- Significantly reduce blue light\n- Smooth color gradations\n- Clear view from all angles\n- Maximum energy savings\nDue to the way brightness is controlled on LED backlights, a small number of people perceive flicker on their screen which causes eye fatigue. The FlexScan EV series utilizes a hybrid solution to regulate brightness and make flicker unperceivable without any drawbacks like compromising color stability - even on low brightness settings. To prevent eye fatigue, a brightness sensor called Auto EcoView detects the changes in the ambient brightness that occurs throughout the day and automatically adjusts the screen to the ideal brightness level.\n- Utökad specifikation\n- Nedladdningsbara filer","domain":"optical_engineering"}
{"url":"https://medicalaid.org/what-are-the-5-types-of-microscopes-and-their-uses/","date":"2024-03-04T22:22:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476532.70/warc/CC-MAIN-20240304200958-20240304230958-00382.warc.gz","language_score":0.9359914064407349,"token_count":2063,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__137554065","lang":"en","text":"Have you ever wondered how the smallest things look like up close? From one grain of sugar in your coffee, a strand of hair, or your cheek cells, you can’t see these things and examine them closely with just your naked eye. If these items are already difficult to inspect, what more of the smaller parts of an organism and other things that seem almost invisible? This is what microscopes are for.\nWhat Is A Microscope?\nA microscope, from the Ancient Greek words mikrós or “small” and skopeîn or “to look or see,” is a tool that is used to view smaller objects that the human eye can see. Microscopy is the scientific field of study which is used to study minute structures and objects by a microscope.\nIt was in the 16th century when the first compound microscope was discovered by and credited to Zacharias Janssen. Through placing an object at the end of a tube, and placing two lenses on top and bottom of the tube, Zacharias and his father Hans, realized that the object became magnified. Thanks to this discovery, more breakthroughs and innovations were developed that lead to the microscopes we are using today.\nHow Do Microscopes Work?\nThe most basic microscopes used in various institutions today make use of a series of lenses that collect, reflect, and focus light into the specimen, which is the object under inspection. Without the presence of light, microscopes won’t work. This kind of microscope is typically used in research centers, schools, and hospitals.\nThe use of different microscope lenses promotes magnification without altering the quality of the image produced. Aside from the lens magnification, it’s also important to identify the microscope field of view to accurately measure the size of your specimen. Also, most microscopes have binocular lenses consisting of two lenses and a prism to split the image on both oculars where you’ll peek through.\nOn another end of the microscope are objective lenses which are responsible for collecting and concentrating light into the specimen. These objective lenses have varying strengths which can be used one at a time by adjusting the revolving nosepiece.\nAn instrument called an eyepiece magnifies the object by changing the wavelength of light that is used in the instrument to make it function. There are many types of eyepieces, each capable of different tasks. The most common eyepieces are those which use gas-displacement technology to supply light. The next common eyepiece is the gas-corrected model. The third common eyepiece is the photocell model.\nOther types of eyepieces exist and are used depending on the needs of the experiment being conducted. By learning how a microscope works, researchers will be able to use these eyepieces in their experiments, thus providing better ways to study nature and its workings.\nMicroscopes are usually powered by batteries or by mechanical mechanisms to allow the observation of objects up to 10 times smaller than their original size. If a microscopic specimen is not handled correctly or in an inappropriate way, it can distort the image and give misleading results. Therefore, using the right type of microscope and handling it properly is important for viewing your chosen object.\nHere are five types of microscope, their specific qualities, and uses:\n- Simple Microscope\nA simple microscope is simply a large magnifying glass with a shorter focal length that has a convex mirror with a small focal area. The most common examples of this type of device are the handheld lens and eyepiece lens.\nWhen a material is held close to the lens of the microscope, its focus is created, and the original object becomes magnified and more erect. Then, it focuses on a portion of the material by bringing together the two edges of the lens. This creates a smaller, more focused image of the material than the larger area.\nSince it’s only a simple microscope, it only has one magnification level depending on what lens is used. Therefore, simple microscopes are only used for reading and magnifying non-complex items. For instance, you can use a magnifying glass to zoom in the details of a map.\n- Compound Light Microscope\nA compound microscope is the most common type of microscope used today, which mechanism is explained earlier. It is basically a microscope that has a lens or a camera on it that has a compound medium in between. This compound medium allows for magnifications in a very fine scale.\nWhile the simple microscope only requires natural light to see the object, a compound light microscope needs an illuminator to view the specimen. These are the basic specifications of a compound microscope:\n- Magnification: This pertains to making the specimen look larger through the microscope through zooming in the lenses. Magnification is a quantified property which ranges from 40x, 100x, 400x, and up to 1000x.\n- Resolution: This refers to how good the image is captured by the compound microscope lens. A higher resolution means that the image will be clearer and more detailed. Also, it has an improved visual clarity as it has more layers of magnifications.\n- Contrast: Like in photography, the background’s darkness relative to the focus or specimen is referred to as contrast. Excellent contrast is typically achieved through staining the specimen so its colors would stand out when viewed in the microscope.\nCompound microscopes are extremely useful for research on different areas. It has made a big impact on science and technology in general. Some of its popular uses are when viewing a scientific specimen for educational and research purposes. If you’re looking into studying in medical school, you’ll often encounter this type of microscope in your classes.\n- Stereo Microscope\nThe stereo microscope, dissecting or stereoscopic microscope, is an optical microscopy version designed specifically for low magnification imaging of a biological specimen. It works through reflecting light off the specimen’s surface rather than transmitted through its medium.\nThis type of microscope is often used in chemistry laboratories where more detailed, three-dimensional images are required that would be possible with an electron microscope or other high-powered microscope. While the stereo microscopy technology has existed for over 100 years, stereo microscopes only recently have come into being in the laboratory and can produce higher quality images than ever before.\nMany people choose stereoscopes over other microscope models because it can produce better quality images depending on one’s needs. In addition, these microscope models require less maintenance and are inexpensive. Stereo microscope applications involve less thorough microscopic requirements, such as viewing manufacturing materials, circuit board work, dissection, and inspection.\n- Scanning Electron Microscope (SEM)\nA scanning electron microscope is a very popular type of scanning electron microscopes, which produces images of a material by scanning the sample with a high-powered beam of electrons. The electrons interacting with atoms within the sample create different signals which contain data about the structure and topography of the material. The images that are produced using these microscope instruments are highly accurate as well as they can be viewed in high resolution using a microscope eyepiece or magnifier.\nTo obtain appropriate results from an SEM, the sample or specimen should have electrical conduction for the electrons to bounce off on its surface, thus producing a clear image. For the sample to become electrically conductive enough, they’re coated in a thin layer of metals like gold.\nSeveral techniques can be employed to enhance the image quality of SEM, such as: fluorescence imaging, tip electron microscopy, multi-beam scanning and the use of colloidal crystals.\nAdditionally, it’s important to use the microscope in good working condition as this will reduce the quality of images that you receive. With all these things in place, you can have a great instrument that will allow you to view and examine the smallest sample possible.\nListed below are the best applications and uses of a scanning electron microscope:\n- Semiconductor inspection\n- Materials science\n- Medical science\n- Forensic investigation\n- Soil and rock sampling\n- Nanowires for gas sensing\n- Transmission Electron Microscope (TEM)\nTransmission electron microscopy is an optical microscopy method in which an electrical beam of electrons is transmitted through an unstained sample to create an optical image of the sample. Instead of sending electrons to scan and bounce off the specimen as what SEMs do, TEMs allow the electrons to pass through the thin sample. The sample is usually an ultrathin slice less than 50 micrometers thick or an electrolyte suspension suspended on a grid of grid-like plates.\nIn contrast to ordinary compound microscopes, TEMs have amazing magnification that’s possibly 10,000 times more than what optical microscopes do, allowing researchers to view exceptionally small specimens. It can even illustrate the arrangement of the atoms within a sample.\nBecause of the sophistication of TEMs, they’re extremely technical and expensive. Students usually don’t have access to this type of microscope as they’re for scientists doing demanding work involving the field of nanotechnology, medical research, life sciences, biological research, material research, gemology, and metallurgy.\nHowever, the samples require detailed preparation where it must be placed in a vacuum chamber. Thus, living samples such as protozoa can’t be examined under TEM. while the samples can be stained or coated with chemicals to protect their structure, there are higher chances that the microscope will still destroy the sample. Despite these drawbacks, the contributions of transmission electron microscopes are unrivaled.\nIn countless ways possible, microscopes have so many to offer science. Thanks to microscopes, studies and learning requiring object magnification can be executed properly. Microscopes also lay the groundwork for more scientific developments to come. As the world’s understanding of technology increases, it might only take some time before microscopes transform into new types with even more potential than what are present today.","domain":"optical_engineering"}
{"url":"https://modulux-led.com/en/","date":"2024-04-18T00:13:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00100.warc.gz","language_score":0.8684492111206055,"token_count":1284,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__65101917","lang":"en","text":"The production friendly concept of the modulux LED curing units allows you to configure your web press according to your requirements. You can choose all the equipment you need to fully configure your web press from our catalogue. Choose either the basic modulux set-up or customise it with additional accessories and components, you can even add the complete technical integration as well as installation services\n– all at a reasonable price – it's up to you!\n- Easy Integration with standardised brackets\n- Rock solid with long lifetime up to 30,000 h\n- Lamp length up to 720 mm scalable in 24 mm steps\n- Powerful intensity up to 25 W/cm²\nTraditional UV suppliers cannot match the savings\nChoose from our affordable\nmodulux LED packages\nNeed to speed up?\nDo it with modulux!\n- no warm-up / cool-down times, ready to go\n- over 30,000 hours lifetime of LEDs\n- Instant on/off no energy use in stand-by mode\n- minimal thermal impact on the film and the machine\n- environment friendly no ozone and no mercury\n- 30-60 % less LEDs to achieve the same UV curing radiant intensity (than other systems)\n- maximum peak intensity in comparison to other systems\n- 30-50 % higher radiant intensity at same distance (than other systems)\nYour application – your modulux\nEquip your web press with a highly productive LED system\nYou can equip nearly every web press with a high performance modulux curing system, whether it is a narrow or mid-web process. Due to the modular design (also with optional components), the modulux unit will suit your every need.\nNarrow web printing\n- Seamless LED integration after each station\n- Various labelling substrates are possible: from paper to shrink sleeves to unsupported films to metallic foil or even heat-sensitive materials like synthetics\n- High speed up to 200 m/min (650 ft/min)\nEasy and low-cost integration\nPurchase just the modulux LED components that you need for a tailored press integration. This saves you money on unnecessary accessories, services or components that you actually don't need.\nFit and forget\nBe surprised by an excellent lifetime\nTechnical features such as, heat management, packing technology and the use of tailored driving technology ensure that the lifetime of modulux LED units exceeds. Unlike UV lamp technology, modulux LEDs can be switched on/off immediately which increases the lifetime and reduces energy costs in stand-by mode. modulux LED curing units offer superior uniformity and a more reliable production process in contrast to UV lamps.\nHigh quality with a reasonable price\nuse a modulux curing system\nand benefit from:\n- an inexpensive system\n- short lead times\n- effective curing\n- low heat input\n- brilliant results\nSmart Heat Management\nwith pure water-cooling\nIn general, LEDs generate a high heat load during operation, which is the main cause of lifetime reduction. That's why an excellent heat management design is so important to reduce the working temperature of the chips as far as possible.\nAligning the LEDs directly on the circuit boards, is still the best packing method, which will minimize the heat transfer. By adopting very high thermal conductivity materials in conjunction with water cooling, stable and precise output can be provided by the ideal working temperature of the chips, within 15–25 °C, that leads to a LED lifetime over 30,000 hours.\nThe optics are made of lenses that are specially designed for labelling and allow a high UV output on the substrate. The core optical design scheme with a uniform continuous spot strip can effectively increase the peak intensity of the spectrum to 120–200 % of the 395 nm (standard) band of the mercury lamp.\nNeed the hard facts?\nHere you go!\n|Dose @ 100 m/min\n|220 mJ/cm² *\n|Max. supported speed\n|up to 200 meter/min in Flexo\n|20–100 % // 1 %-steps\n|< 1 s\n|> 30,000 hours\n|395 nm (standard) other wavelength available on request\n|UV LED varnish support\n|UV LED Metal Ink support\nSpecifications may be changed and are different with actual products\nReasons to buy\n- More choices with cooLED prices\nUse the modular concept to configure your low-cost LED UV curing system. Choose either the basic modulux unit or customize it with additional accessories and components, including the technical installation from IST Metz – all at a reasonable price.\n- Tailored equipment\nPay only the accessories and services you really need. Our configurator shows you hardware and optional service packages.\n- Cost-efficient and energy saving\nA reduced use of LEDs at a higher peak and radiant intensity, make the modulux unit a highly efficient LED curing system and with the instant on/off function there is no energy use in stand-by mode.\n- Various applications possible\nDue to the modular design, you can equip nearly every web press with a high performance modulux curing system, that will suit your every need.\n- High quality system\nWith low investment costs - you will benefit from all the advantages of the latest LED curing technology.\nFrom UV unit to complete system\nBuild your own LED UV curing system!\nThe modulux system can be supplied as fully configured package including cables, power supply, control and chiller, full light shielding and interlocking for total safety compliance. There is everything you need to equip and run your press, including the technical installation by IST Metz.\nYou need only the LED unit?\nNo problem at all. All components can also be ordered separately.","domain":"optical_engineering"}
{"url":"http://firstlocaltoledo.com/columns/11/2014/whats-new-in-contact-lenses/","date":"2017-06-29T14:16:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-26/segments/1498128329344.98/warc/CC-MAIN-20170629135715-20170629155715-00635.warc.gz","language_score":0.928142786026001,"token_count":553,"dump":"CC-MAIN-2017-26","global_id":"webtext-fineweb__CC-MAIN-2017-26__0__186320488","lang":"en","text":"Gone are the days when patients with astigmatism or patients over 40 couldn’t wear contact lenses. I now firmly believe that every single person that is capable of putting a contact lens in their eye can find a contact lens solution that will work with their prescription. The main problem I still have in fitting contact lenses nowadays is dry eye, and advances in technology have improved this as well.\nAll categories of contact lenses have seen improvements, from soft lenses to hard (gas-permeable) lenses and even lenses in between (hybrid designs). Soft lenses are now available in very breathable materials with advanced surface treatments to promote wetting and comfort. Off-the-shelf parameters have increased and custom-order soft lenses are available in pretty much any desired power, from astigmatism to bifocal/multifocal and in the highest of nearsighted or farsighted powers.\nIn many cases, daily disposables exist for patients that want the freshness and convenience of a one-day use lens (without the hassle of cleaning them every night). For those patients desiring something more customized and optically stable (particularly for patients with astigmatism), gas-permeable (GP) lenses are now being made so precisely, and in so many new materials, that doctors can control nearly any parameter they want for the most custom-fit lens any eye could desire.\nHybrid designs are improving rapidly; these have the optically superior GP lens center, but with a comfortable soft lens skirt around the edges. This design gives the potential for GP optics, but in a softer, more familiar fit to previous soft lens wearers. For diseased corneas (those patients with keratoconus or other corneal disease or dystrophy), and even for those patients who have normal corneas but desire the most stable vision and sharpest optics available, scleral lenses are the “newest and coolest” contact lenses on the market. These lenses are ultra-breathable, large diameter GP lenses that rest on the whites of the eyes (the sclera) avoiding corneal influence altogether. Lastly, overnight corneal reshaping and myopia (nearsightedness) control lenses worn like retainers only at night offer freedom from contacts and glasses during the day, and even have the potential to slow down the progression of myopic growth in children.\nIf you’ve ever been told you couldn’t wear contact lenses, now’s the time to ask again. Any eye doctor familiar with these new technologies can recommend a good lens to start with. Your options are only limited by your willingness to try something new and different!","domain":"optical_engineering"}
{"url":"https://hexareportsmarketindustry.wordpress.com/2017/06/14/fiber-optics-market-key-manufactures-market-status-and-forecast-by-2025/","date":"2018-04-19T20:53:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937045.30/warc/CC-MAIN-20180419204415-20180419224415-00072.warc.gz","language_score":0.8814013004302979,"token_count":800,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__209855378","lang":"en","text":"The global fiber optics market is expected to reach USD 9.12 billion by 2025, according to a new report by Hexa Reports. The growing necessity of data security in the military & aerospace sector has increased the growth and penetration of this technology. There is a huge demand for fiber optic connectors in the security sector owing to their bandwidth capabilities, inherent security, and protection against signal interference. The growing adoption of the optical technology in medical and aerospace arenas is anticipated to revolutionize the market by 2025.\nLeading players integrate vertically across the entire supply chain to stay ahead in the competition by compensating for inadequacies, increasing revenue, and eliminating competitive scenarios. The upcoming era is expected to witness the adoption of technology in the dynamic application segment that includes railways, architecture & construction, and BFSI, owing to the growing automated high-tech maintenance requisites and escalating importance of data (as an asset).\nThe growing penetration of technology is encouraging manufacturers and suppliers to invest in research & development for creating better products. As the production and installation of products.\nBrowse Detail Report With TOC @ http://www.hexareports.com/report/fiber-optics-market\nAccordingly, production is being optimized by manufacturers worldwide, regulating efficiency and prices to curb alternatives to fiber optics technology.\nThe market by varied categories of fiber optics includes single-mode, multimode, and plastic optical fibers. Based on application type, the market has been segmented into telecom, oil & gas, military & aerospace, BFSI, medical, railway, and other associated technology applications. The telecom sector is the biggest application sector in terms of size and is subject to regulations imposed by the government and other related regulatory authorities. From the manufacturing of to their application, several regulations are to be followed by manufacturers and suppliers. These regulations vary depending on the additions or innovations in technology.\nFurther key findings from the report suggest:\n- The multimode segment dominated the overall market in 2015. The multimode technology allows simultaneous propagation of multiple modes of light. This enhances the transfer rate of audio/video applications, particularly in Local Area Networks (LANs).\n- The growing demand for optic cables can be accredited to the rising bandwidth needs across carriers and enterprise networks.\n- Fiber optics has exciting new applications in the medical industry and is mainly used in light conduction and illumination, flexible bundling, and laser delivery systems.\n- The North American region dominated the market and accounted for the largest global market share (in terms of revenue) in 2015.\n- Key industry participants include Corning, Inc. (U.S.), Optical Cable Corporation (U.S.), Sterlite Technologies Limited (India), and OFS Fitel, LLC (U.S.).\nRequest A Sample copy of This Report @\nTable Of Content\nChapter 1 Methodology and Scope\n1.1 Research Methodology\n1.2 Research Scope & Assumptions\n1.3 List of Data Sources\nChapter 2 Executive Summary\n2.1 Fiber Optics – Industry Snapshot & Key Buying Criteria, 2014 – 2025\nChapter 3 Fiber Optics Industry Outlook\n3.1 Market Segmentation & Scope\n3.2 Fiber Optics Market Size and Growth Prospects\n3.3 Fiber Optics – Value Chain Analysis\n3.4 Market Dynamics\n3.5 Key Opportunities – Prioritized\n3.6 Industry Analysis – Porter’s\nChapter 4 Fiber Optics Market: Application Estimates & Trend Analysis\n4.1 Fiber Optics Market: Application Movement Analysis\nChapter 5 Fiber Optics Market: Type Estimates & Trend Analysis\n5.1 Fiber Optics Market: Type Movement Analysis\nChapter 6 Fiber Optics Market: Regional Estimates & Trend Analysis\n6.1 Fiber Optics Market Share by Region, 2015 & 2024\n6.2 North America\n6.4 Asia Pacific\nChapter 7 Competitive Landscape\n7.1 Company Profiles","domain":"optical_engineering"}
{"url":"https://capture-resources.be/team/heidi-ottevaere","date":"2024-04-14T07:11:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816875.61/warc/CC-MAIN-20240414064633-20240414094633-00629.warc.gz","language_score":0.8842262029647827,"token_count":157,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__121527307","lang":"en","text":"Heidi Ottevaere is a professor at the Faculty of Engineering of the Vrije Universiteit Brussel (VUB). She holds responsibility for the Instrumentation and Metrology platform at the Photonics Innovation Center and heads the research unit 'biophotonics sensing' at the Brussels Photonics Team B-PHOT. Heidi coordinates and actively participates in various research and industrial projects with a primary focus on the design, fabrication, and characterization of diverse photonic components and systems. Her expertise spans the fields of biophotonics, environmental monitoring, interferometry, holography, and imaging. Specifically, she concentrates on developing sensitive and compact optical-based detection probes for measuring particles, contaminants, bacteria, biofilms, and other substances in water.","domain":"optical_engineering"}
{"url":"https://www.pickawayhelps.org/led-lighting-advantages-and-disadvantages/","date":"2024-02-22T08:27:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473735.7/warc/CC-MAIN-20240222061937-20240222091937-00022.warc.gz","language_score":0.9623250961303711,"token_count":711,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__36486562","lang":"en","text":"LED lights isn’t a new technology; as a matter of fact, it has actually been with us since the 1960’s. LED light bulbs were initially utilized as a substitute for incandescent signs as well as screens in laboratory equipment and at some point in TELEVISION’s, watches, radios and also calculators.\nLED costs have just lately has actually gone down enough to make them feasible for domestic as well as commercial markets. LED home lights can include anything from outside to Christmas lights With the present impending power crisis in South Africa, as well as stress applied on governments and services alike for even more lasting energy services, LED lights have a bright future in space lights services.\nMajor advantages of using LED lights\nFirstly, LED lights are even more reliable than any other lights choice commercially available presently. LED light bulbs have a 100,000 hour life-span, and will last for 11 years at continuous operation, or 22 years at 50% operation.\nContrast this to the approximate life-span of 5,000 hrs for an incandescent light bulb and 10,000 hours for a fluorescent light. Many companies discover the lifespan of LED light bulbs very appealing – visualize only need to alter the signage on a company residential property when every 11 years. With incandescent and fluorescent bulbs, real expense of the light bulb must include the labor expenditure and time needed to change them. LED lights practically eliminate lights upkeep costs.\nThe 2nd major benefit as well as crucial toughness of using LED illumination over standard lighting is the reduced power intake. An LED light bulb can converting 80% of the electrical energy used into light power. The staying 20% electric power is shed as heat energy. Find out more information about best led strip lights for room by clicking the link.\nIncandescent light bulbs just convert 20% of the electrical energy utilized right into real light power, which suggests that an incredible 80% of electric power is lost as heat. If you contrast the 80% efficiency of LED lights with the 20% effectiveness of incandescent lights, the ideal selection of light bulb is rather noticeable.\nSignificant drawbacks of using LED lights.\nThe primary constraint is the present high expense of LED light bulbs. Even though the expense of LED lights in South Africa is continuously lowering, changing a 100W incandescent light bulb with an LED choice can cost regarding R5,000.\nThe startup cost may appear challenging, however LED light bulbs spend for themselves gradually because they can last for up to 11 years, and also saves a lot of cash in terms of electricity used. For services, making use of LED lights makes a great deal of sense since the lowered maintenance costs more than make up for the steep start-up price.\nLeading services are doing it\nNumerous blue chip companies as well as resorts in South Africa such as Woolworths, CFC, Sasol, Caltex, Protea Resort Team as well as Ster Kinekor presently make use of LED lighting remedies. LED lights are utilized from stairnose lights, light line, wall wash lighting as well as signs lighting to color-changing till numbers and controls, building illumination and fridge freezer illumination.\nThese businesses have actually recognized LED as the favored illumination option for the future. With LED light bulb startup prices plunging, a lot more business will adhere to these magnate as well as find a pain-free illumination solution that will certainly last them a years, as well as conserve them money.","domain":"optical_engineering"}
{"url":"http://rnassignmentkcym.landscaperben.us/image-pre-compensation-for-ocular-aberrations.html","date":"2018-10-23T12:44:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-43/segments/1539583516135.92/warc/CC-MAIN-20181023111223-20181023132723-00460.warc.gz","language_score":0.8921862840652466,"token_count":1284,"dump":"CC-MAIN-2018-43","global_id":"webtext-fineweb__CC-MAIN-2018-43__0__216611122","lang":"en","text":"Verification of computer display pre-compensation for visual aberrations in an artificial eye digital image processing for pre-compensation of higher-order . This issue was overcome by using a reference image of the system, recorded in the same conditions, to compute the aberrations of the internal ocular optics this removes any systematic aberrations present in the apparatus. Nevertheless, the experimental measurement of the overall ocular aberrations is the most direct and accurate way to evaluate the effects of refractive surgery on global image quality, and it can be directly related to visual performance.\nThe quality of the retinal image is mostly limited by the aberrations of the eye the eye is a complex structure, and each of its components contributes differently to final optical performance thus, the study of individual contributions to ocular aberrations has become of great importance for both basic science and clinical applications. Jian huang, a barreto, m adjouadi (2012) dynamic image pre-compensation for computer access by individuals with ocular aberrations 2012 annual international conference of the ieee engineering in medicine and biology society, pages 3320-3323. Ocular aberrations before and after myopic corneal refractive surgery: lasik-induced changes measured with laser ray tracing trackers for compensation of eye . Comparing to glasses, contact glasses and ocular surgery, on-screen image pre-compensation can be easily carried out by computer calculation without any irreversible change in the eyes, as long as the ocular aberration is known.\nThe human eye is affected by aberrations that can degrade retinal image quality recent studies have found that in pre-presbyopic patients, the magnitude of higher order aberrations for the cornea . This paper proposes an image enhancement approach based on dynamic pre-compensation for improving the visual performance of subjects with ocular aberrations, while interacting with computers the degradation caused by ocular aberrations is counteracted through the pre-compensation performed on images displayed on the computer screen. Corneal aberrations were higher than ocular aberrations due to compensation from the internal aberrations for manifest keratoconus, the corneal and ocular vertical coma displayed the largest difference being 386 and 785 times higher, respectively, than normal eyes, while the largest differences for suspected keratoconus were only 53 and 40 . Abstract the objective was to study the relative contribution of the optical aberrations of the cornea and the internal ocular optics (with the crystalline lens as the main component) to overall aberrations in the human eye.\nA pre-compensation algorithm for different optical aberrations using an enhanced wiener filter and edge tapering soheil mohamadpour1, alireza mehridehnavi1,3, hossein rabbani1,2,vasudevan lakshminarayanan3 1 biomedical engineering department, isfahan university of medical sciences, isfahan, iran 2 medical image and signal processing research center, isfahan university of medical sciences . Download free full-text of an article a method for pre-compensation of digital images based on total variation deconvolution, and comparing it with wiener deconvolution, to enhance visual efficiency in the presence of higher order ocular optical aberrations. In this method, the presented images are preprocessed by performing personalised compensation according to the ocular aberration of the computer user in order to overcome the mismatch between the aberration used to generate the precompensation and the actual aberrations at the time of viewing, dynamic ocular aberrations are derived from the .\nJournal of refractive surgery | purpose:to determine the spherical wave aberration of the human eye based on corneal topographymethods:based on the pre- and postoperative status of 146 . Alonso jr, m, barreto, ab: pre-compensation for high-order aberrations of the human eye using on-screen image deconvolution ieee engineering in medicine and biology society. Request pdf on researchgate | dynamic image pre-compensation for computer access by individuals with ocular aberrations | several image enhancement methods have been successfully used to improve . Request pdf on researchgate | contrast improvement in pre-compensation of ocular aberrations for computer users | ocular aberrations in the human eye prevent many users from interacting . The time courses of convolved images of the letter “e” based on the measured aberrations are also shown in movie 1 for (a) the normal and (b) the moderate kc eye the convolved images are calculated under normal viewing condition by including chromatic aberration to simulate the theoretical retinal image quality.\nAn image processing approach to pre-compensation for higher-order aberrations in the eye miguel alonso jr , armando barreto keywords: deblurring , optical transfer function , point spread function , retina , pre-deblurring , deconvolution. An aberration is the difference between an ideal image and a real image an aberration causes the point of an image to appear as a fuzzy dispersion spot the object of a flat image no longer appears to be in an object plane but rather appears as a curved surface with a loss of contrast sensitivity. Contrast improvement in pre-compensation of ocular aberrations for computer users jian huang , armando barreto , miguel alonso , malek adjouadi biomedical sciences instrumentation.\n[taylor & francis online], [web of science ®], have described a method to perform the pre-compensation of onscreen images according to the user's particular visual aberration this method relies on a priori knowledge of the visual aberration, characterized by wavefront analysers. An image processing approach to pre-compensation for higher-order aberrations in the eye miguel alonso jr department of electrical and computer engineering, florida international university. T he human eye is affected by aberrations that can degrade retinal image quality corneal and total ocular aberrations after lasik/gatinel et al compensation .","domain":"optical_engineering"}
{"url":"https://www.chandlercomputers.com/shop/monitors/samsung-23-5-curved-monitor/","date":"2019-08-24T20:27:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027321696.96/warc/CC-MAIN-20190824194521-20190824220521-00219.warc.gz","language_score":0.8293800950050354,"token_count":160,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__210505440","lang":"en","text":"Curved around your eyes for the ultimate viewing comfort\n• 4000 R Curvature: The optimal curvature to ensure comfortable viewing on a 23.5” screen, delivering a wider field of view that’s easy on the eyes.\n• Cognitive Research: Experts have found that people perceive curves as more visually comforting than hard lines and angles. Simply viewing the curves of an object triggers relief in the brain.\nBrilliant picture quality from every angle\n• Best-in-Class 3000:1 Static Contrast Ratio: More vivid than conventional monitors to provide truly brilliant pictures with deeper blacks, pristine whites, amazingly bright colours, and less light leakage.\n• Wide Viewing Angle: Delivers a 178° wide viewing angle horizontally and vertically for optimal viewing experience from any angle.","domain":"optical_engineering"}
{"url":"https://xeniainc.com/products/coral-view-lens-v2","date":"2024-04-13T12:37:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816734.69/warc/CC-MAIN-20240413114018-20240413144018-00679.warc.gz","language_score":0.9015398621559143,"token_count":277,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101892558","lang":"en","text":"Capturing nature beauty in perfect light, with the perfect angle using your smartphone or tablet have never been so easy with the new Polyplab Coral view lens.\nTaking pictures of your beautiful corals often requires changing your aquarium light color spectrum or mount complex lighting setup. With the new Polyplab Coral view lens, take pictures quickly and easily for the perfect shot every time.\nThe Polyplab Coral view lens fits on the majority of the smartphone and tablets available on the market and all optical lens comes in his own protective casing for years of uses\nprofessional pictures of coral and fish directly from your phone!\nUsing a phone to take pictures of a saltwater aquarium can be difficult with the high amount of blue that is emitted from the light. Taking a decent picture usually requires changing your lighting spectrum and playing with your camera's settings. Professional photographers use colored filters to accentuate colors, and shooting photos of reef tanks are no different. Just clip the PolypLab Coral View Lens onto your phone, attach your preferred filter lens and start showing off your corals and fish.\nPolyp Lab's Coral View Lens is ideal for reef tanks with their modular lens system. You can use one filter or if you need a little more fine-tuning, use multiple lenses to get the perfect photo. You no longer need to adjust your lighting spectrum just to take a photo.","domain":"optical_engineering"}
{"url":"http://www.forumlighting.com/products/?SingleProduct=67","date":"2020-04-01T02:13:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370505359.23/warc/CC-MAIN-20200401003422-20200401033422-00178.warc.gz","language_score":0.820604145526886,"token_count":120,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__98551798","lang":"en","text":"Klean Edge Cove LED\nThe Klean Edge Cove by FORUM is a fully integrated cove lighting system.\nA fully integrated cove lighting system which creates a straight, clean cove every time, in every space. Klean Edge Cove is a 2” x 8” housing, with a 4 ¾” aperture.\nThree unique profiles provide maximum aesthetic impact. Staggered lamps and shielding options provide seamless light quality, without scalloping for even distribution.\nKlean Edge Cove accommodates both regular and high-output T5 lamps, and the latest in LED technology.","domain":"optical_engineering"}
{"url":"http://www.cupc.ca/en/speaker/sangeeta-murugkar/","date":"2017-11-23T20:19:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-47/segments/1510934806939.98/warc/CC-MAIN-20171123195711-20171123215711-00476.warc.gz","language_score":0.911237895488739,"token_count":143,"dump":"CC-MAIN-2017-47","global_id":"webtext-fineweb__CC-MAIN-2017-47__0__152017280","lang":"en","text":"Dr. Sangeeta Murugkar leads the Carleton Biophotonics Research Group at Carleton University. Prior to joining the faculty at Carleton University, Dr. Murugkar researched Quantum Nonlinear Optics and Biophotonics at the University of Ottawa. She is currently developing a portable optical probe that will use coherent Raman spectroscopy to directly detect ovarian cancer. Sangeeta has a PhD in Physics from the University of Michigan, Ann Arbor and Post-doctoral experience in Engineering Physics at McMaster University. Her undergraduate degree in Physics from the University of Bombay (Mumbai), India was followed by a MSc degree in Physics from the Indian Institute of Technology (IIT), Kanpur.","domain":"optical_engineering"}
{"url":"http://www.almaspace.com/index.php/aerospace/spacecraft-subsystems/aocs/bi-axial-sun-sensor","date":"2015-08-30T17:56:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-35/segments/1440644065330.34/warc/CC-MAIN-20150827025425-00249-ip-10-171-96-226.ec2.internal.warc.gz","language_score":0.8669403791427612,"token_count":183,"dump":"CC-MAIN-2015-35","global_id":"webtext-fineweb__CC-MAIN-2015-35__0__25620208","lang":"en","text":"ALMASpace Bi-Axial Sun Sensor is a low cost attitude determination device suitable both for LEO and GEO orbits. Each Sun Sensor group is capable to estimate the Satellite-to-Sun vector with 0.1° (down to 0.01° when the sun radiation is perpendicular to the sensor surface) of accuracy.\nThe SunSensor digital data output can be selected among ALMASpace CanBus standard protocol, I2C bus or RS232 port. The standard data output is represented by the three components of the Satellite-to-Sun vector and the figure of merit of measurement accuracy.\nThe SunSensor system can be controlled by external devices in order to modify the sensitivity to sunlight and power light threshold. ALMASpace BiAxial SunSensor is a PSD based system, with a wide angle optical frontend able to guarantee an increased precision, radiation power, and field of view.","domain":"optical_engineering"}
{"url":"http://irspectrumtable.com/","date":"2014-04-17T21:39:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00529-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.9029440879821777,"token_count":277,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__153403807","lang":"en","text":"Infrared rays are used in physical therapy.\nFlashing LEDs and photodiodes are used ubiquitously in remote controls, automation systems, security systems, some mobile phones (infrared), etc. The infrared rays do not distract the person's attention because of its invisibility.\nInterestingly, the infrared remote control domestic easily fixed with a digital camera.\nInfrared emitters are used in industry for drying paint surfaces. Infrared drying method has significant advantages over conventional, convection method. The first is, of course, the economic effect. Speed and power, used in infrared drying less the same performance with traditional methods.\nUsing infrared radiation sterilizing foods to disinfect.\nHistory of infrared radiation\nInfrared radiation was discovered in 1800 by English astronomer William Herschel. Pursuing the study of the Sun, Herschel was looking for a way to reduce heating tool with which observations were made. Defining by thermometers actions of different parts of the visible spectrum, Herschel discovered that the \"high heat\" is for a strong red color and possibly \"the apparent refraction.\" This research laid the foundation for the study of infrared radiation.\nVery strong infrared radiation in areas of high heat can dry out the mucous membrane of the eye. The most dangerous when not accompanied by emission of visible light. In such places need to wear special goggles for the eyes.","domain":"optical_engineering"}
{"url":"https://www.physicsandastronomy.pitt.edu/events/pqi-condensed-matter-seminar-ben-lawrie-oakridge-national-lab","date":"2020-08-12T01:31:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738858.45/warc/CC-MAIN-20200811235207-20200812025207-00274.warc.gz","language_score":0.8514346480369568,"token_count":183,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__31225401","lang":"en","text":"Description:Title: Quantum sensing and quantum nanophotonics at ORNL\nTwo-mode squeezed light sources exhibiting continuous variable entanglement allow us to reduce the noise floor in optically transduced sensors below the standard quantum limit, enabling greater signal to noise ratios than are possible in the best possible classical sensors. I will present some of our recent results demonstrating quantum enhanced sensitivity for applications ranging from magnetometry to plasmonic sensing to atomic force microscopy. I will also discuss some of our recent research efforts exploring quantum nanophotonics with plasmonic nanostructures and single photon emitters in low-dimensional materials. I will close with a summary of our new research programs centering on nano- and mesoscale characterization of quasiparticle, vortex, and two-level-system interactions with light in superconducting quantum devices.\nLocation and Address\n321 Allen Hall","domain":"optical_engineering"}
{"url":"http://medhub365.com/store/microscope-slides-cover-glass-500-boxes/","date":"2021-07-24T07:44:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150134.86/warc/CC-MAIN-20210724063259-20210724093259-00469.warc.gz","language_score":0.9193331003189087,"token_count":158,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__1436096","lang":"en","text":"High-clarity microscope slides cover glass are widely used in scientific research, educational testing and routine medical examination. The cover glasses can be made into microscope slides with adhesive glass carrier or silicone adhesive under low intensity vacuum. They need to be polished by special machine for making a plane surface. Our laboratory glassware strictly meets test standards of most countries and customers’ requirements.\nmicroscope slides cover glass | 500 boxes\nLab glass slides also called cover glass, are used to support a specimen on a microscope slide. These slides come in two formats: cover glass and insert glass. Cover glass slides have a layer of high-quality glass that is 99.5% optical grade. It’s smooth and has a highly polished surface for excellent specimen presentation.\nselling unit:- 500 boxes","domain":"optical_engineering"}
{"url":"https://nir-for-food.com/faq-about-nir-spectroscopy/","date":"2024-04-21T08:45:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817729.87/warc/CC-MAIN-20240421071342-20240421101342-00888.warc.gz","language_score":0.923882246017456,"token_count":2232,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__15056190","lang":"en","text":"We’ve put together some commonly asked questions to give you more information about NIR Spectroscopy\nWhat is NIR Spectroscopy?\nNIR spectrometers consist of a light source, a tool to split the light into separate wavelengths, and a detector. NIR spectra create a “fingerprint” of the sample by the NIR energy transmitting through it (often but not exclusive to liquids) or reflecting off it (solids) and the subsequent NIR radiation interaction. The instrument detector collects the light after interaction with the sample. These spectra include data related to the physical and chemical properties of molecules in the sample by absorption of chemical bonds. However, there is often overlap between the wavelengths of chemical bonds in the NIR spectral range (750 to 2500nm), so the spectra can be difficult to interpret visually. A single peak absorption change cannot be attributed to the change in one chemical or physical property because of the vibrational energy overlap between different bonds. Because of this, mathematical pre-processing and chemometrics must be used to extract relevant information from spectral data. Mathematical models are created that are used for either classification or a quantitative measurement that correlates the NIR spectra to reference data for a parameter of interest. Once such models are created and validated, they can use the NIR spectra for direct measurement.\nIn some cases, a process known as local modeling is used where classification is first performed, and then a subsequent quantitative model is chosen to measure a parameter of interest-based on the classification analysis. Multiple models can be created from one set of NIR spectra if there are reference methods for all parameters of interest. It is also essential to use a calibration data set that covers the entire range of the parameters of interest to be measured.\nWhat is the difference between NIR and FT-NIR Spectrometers?\nFT-NIR (Fourier Transform-NIR) is a technique used to simultaneously collect high-resolution spectral data over the entire range of interest. There are significant advantages to this method over a dispersive spectrometer, which measures intensity over a very narrow range of wavelengths over time. This technique requires repeated measurements to obtain absorption spectra over the full range of interest. FT-NIR spectrometers use a light beam containing multiple frequencies which is modified very quickly in a short period of time. This occurs by shining the light into a Michelson interferometer, a configuration of two mirrors. One mirror is fixed and the other moves to transmit and block different wavelengths of light. The raw data is the light absorption for each mirror position and processing is required to change the raw data into the desired spectrum showing the light absorption at each wavelength. The processing is known as a Fourier Transform and it converts displacement of the mirror (measured in cm and called an interferogram) into the inverse domain and resulting absorbance spectrum (wavenumber in cm-1). FT-NIR spectrometers collect spectra in wavenumber (an inverse measure of distance) as opposed to dispersive NIR spectrometers collecting spectra in wavelength (a measurement of frequency).\nThere are numerous advantages to using FT-NIR spectrometers over dispersive instruments. Both resolution (WHY) and signal-to-noise ratio (SNR) tend to be higher for FT-NIR instruments. Higher SNR is the result of simultaneous wavelength collection as well as higher throughput. Wavelength accuracy is higher as well because wavelength is calibrated in FT-NIR instruments by passing a laser beam of known wavelength through the interferometer. Wavelength calibration in dispersive instruments is dependent on the mechanical movement of diffraction gratings and this can lead to inaccuracy. Imperfections in diffraction gratings and accidental reflections can also lead to stray light in dispersive instruments, which is the radiation of one wavelength appearing in another wavelength in the spectrum. Because the wavelength is determined by the modulation frequency of the interferometer in FT-NIR spectrometers, there is no direct equivalent to the stray light that can be found in dispersive instruments.\nThe primary advantage of FT-NIR spectrometers is that instruments are inherently reproducible, which eliminates the need for method transfer of calibration models needed to analyze the spectra. The process of collecting spectral data and correlating reference values of the parameter of interest to the spectra using chemometrics can be time-consuming and reference tests can be expensive. When a calibration model is created using one dispersive spectrometer, it may not work on another spectrometer of the same type because of differences in the dispersive element. One good example of this is AOTF spectrometers, which use a crystal modulated at different frequencies to disperse light into different wavelengths. Such instruments can never be reproduced due to the inability to duplicate crystals. Calibration models can be transferred from one instrument to another using mathematical algorithms and software standardization. This process is known as method transfer. Method transfer can be difficult, time-consuming, error-inducing, and sometimes may not work at all depending on the type of spectrometer, especially when transferring to multiple instruments. FT-NIR spectrometers require no method transfer between instruments, even when using calibration models made by a different vendor as long as the original instrument is also an FT-NIR spectrometer. This results in saving of time and resources, especially when deploying multiple instruments in a production environment.\nWhat are the Advantages of Using NIR Spectroscopy Over Traditional Testing Methods and Other Spectroscopic Methods?\nNIR spectrometers offer a fast, non-invasive, and cost-effective method for testing parameters of interest in numerous industries. There is little if any sample preparation required and no sample destruction. No chemicals or solvents are required for use. While NIR spectroscopy requires the creation of calibration models using chemometrics to correlate spectra to reference values, once these models are constructed the benefits are enormous. Multiple parameters can be measured with a single scan after models are created. Reference testing in the food and beverage industries often consists of expensive and time-consuming tests like HPLC and wet chemistry tests. These tests require skilled technicians and if not performed on-site, the results can take a week or longer to obtain. Performing such tests in a real-time process setting is often impractical if not impossible. Advances in the technology of NIR spectrometers and the Process Analytical Technology (PAT) initiative have led to the implementation of NIR spectroscopy as a real-time process control tool.\nVarious spectroscopic methods exist but NIR spectroscopy has proven to be the most suitable technology in many industries for measuring parameters of interest in both laboratory and process settings. NIR offers the advantages of little to no sample preparation, deep light penetration into the sample, and no sample destruction. The deep light penetration is especially advantageous in the food industry when samples are often not homogenous. Some methods are not suited to measure parameters of certain organic molecules as well.\nHow is NIR Spectroscopy Used in the Food and Beverage Industries?\nNIR spectroscopy is used in numerous verticals in the food and beverage industries for testing of raw materials, intermediates, and finished products. Depending on the type of instrument, it can be used as a portable handheld mobile tool, a laboratory instrument, or a process control tool to optimize the manufacturing process and reduce waste. Industries that use NIR spectroscopy for testing include alcoholic and non-alcoholic beverages, edible oils, dairy, meat, seafood, and spices. Identification of ingredients and additives in one application that is used in many of these industries. Conformity testing is another example of an application that can used for identification of a “good” or “bad” batch of samples. In these two cases, NIR spectra are often matched to a library of known spectra to identify the constituent of interest, eliminating the need for construction of quantitative calibration models. This is similar to identification of raw materials in the pharmaceutical industry, which is usually the first step in the manufacturing process. Composition analysis requires the construction of calibration models to measure specific concentrations of parameters. Fat, protein, moisture, and carbohydrates are examples of organic parameters that have been measured in many verticals in the food and beverage industries. More specific parameters have been measured as well, such as fatty acid profiles, sugar content, alcohol content, acidity, and even salt concentration. While salt is not an organic molecule, it often has an indirect effect on water molecules in a sample. An indirect correlation is acceptable when constructing chemometric models for use by NIR spectroscopy, but such models must be carefully analyzed to ensure that the analysis is legitimate. Color analysis is another example of an indirect correlation which has successfully been measured using NIR spectroscopy.\nFood fraud and adulteration is a tremendous problem in the food and beverages industries and NIR spectroscopy has been used as a tool to identify and monitor adulteration in products. Adulteration can constitute many different forms and methods. Misidentification of a product is one common form of adulteration. Adding cheaper ingredients or dilution is another method of adulteration. In some cases, this can be dangerous and present a health hazard, such as adding melamine to products containing protein. Melamine mimics protein in standard wet chemistry tests and in this case, NIR spectroscopy not only presents a faster and cheaper method for adulteration identification, it actually presents a solution when standard testing will not work. If an adulterant is identified in a food or beverage product using NIR spectroscopy, the sample can be sent off for further testing. Large-scale testing is often impractical using standard methods and using NIR spectroscopy can be a powerful screening tool for adulterant identification.\nThe use of NIR spectroscopy as a real-time process control tool has become more prevalent as advances in technology have moved the focus of new instruments from the laboratory to the process. Process Analytical Technology (PAT) is a framework for innovative process manufacturing and quality assurance. Critical points and parameters during manufacturing of a product are defined and the process is designed in a way that such points and parameters can be measured using analytical tools and instruments for real-time process feedback and control. Such instruments must be able to measure on-line and in a non-invasive manner. Many vendors have developed instruments that are able to measure multiple points in a process with a single instrument, usually using optical fibers and probes. PAT has become an important part of pharmaceutical as well as chemical manufacturing and is beginning to acquire a hold in the food & beverage industry. Real-time feedback using NIR spectroscopy can optimize the use of materials as well as reduce or eliminate the production of material that does not meet specifications.","domain":"optical_engineering"}
{"url":"https://www.aldixonphotography.com/blog/2012/9/7/first-test-drive.html","date":"2019-09-20T07:25:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573908.70/warc/CC-MAIN-20190920071824-20190920093824-00045.warc.gz","language_score":0.9598629474639893,"token_count":251,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__203257447","lang":"en","text":"First Test Drive\nAs those of you who follow me via social media will likely already know, I recently made an addition to the ol' camera bag. Last night I FINALLY got my hands on a Nikon 24mm f3.5 PC-E lens. This is a specialized lens that allows you to 'tilt' the lens in relation to the camera sensor, altering the focal plane. You can also 'shift' the lens to control the perspective (think of all the photos you have of buildings that look like they're falling over). Another benefit of being able to 'shift' the lens is virtually seamless panoramic images, both horizontally and vertically.\nIt was this panoramic feature that I headed out tonight to test. With camera, lens, and tripod in tow; I popped across town to the rodeo grounds here in Stony Plain. Although I wouldn't classify the images below as 'keepers', I think they gave a good indication of the panoramic capabilities of the lens.\nAlthough the panoramas above were relatively simple to produce, the learning curve with this lens has just begun. I am looking forward to spending more time with it in a effort to fully harness the power of this truly unique lens.","domain":"optical_engineering"}
{"url":"https://latimesblogs.latimes.com/lanow/2011/08/laser-police-helicopter.html","date":"2021-09-28T14:05:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780060803.2/warc/CC-MAIN-20210928122846-20210928152846-00146.warc.gz","language_score":0.9675712585449219,"token_count":181,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__253462268","lang":"en","text":"Powerful laser pointed at Glendale police helicopter\nA 30-year-old man has been arrested in Glendale for allegedly flashing a high-powered blue laser twice at a police helicopter.\nAvo Garabedian was arrested Sunday night on suspicion of discharging a laser at an occupied aircraft after the aircrew spotted him and he tried to flee the scene, Sgt. Steve Robertson told the Glendale News-Press.\nThe incident was the first time an aircrew has been struck with a 1,000-milliwatt, blue light laser, which is significantly more powerful than a green laser, Robertson said.\nGreen lasers have been typically used in laser pointing incidents involving police helicopters.\n“We look at this as an assault on our flight crew,” he said, adding that no one was injured in the incident.\n-- Veronica Rocha, Times Community News","domain":"optical_engineering"}
{"url":"http://technologycamel.us/2018/09/12/the-beginners-guide-to-manufacturers/","date":"2019-04-22T10:22:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578551739.43/warc/CC-MAIN-20190422095521-20190422121111-00016.warc.gz","language_score":0.9480766654014587,"token_count":483,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__11044856","lang":"en","text":"Learn About Choosing the Best Optic Lens Manufacturers\nPresently, the need of optical lens has been on the rise due to a large number of people having eye problems. Where one is searching for the optic lens one is likely to come across the optical lens that is of differing composition and quality. A large number of the optic lens manufacturers has led to the production of the optical lens with differing compositions and quality. Where one is looking forward towards buying a good quality optic lens ones should make sure that one buys from some of the well-known optic lens manufacturers. Where one is searching the best optic lens manufacturers it might turn out to be a great hustle due to the presence of very many optic lens manufacturers.\nThis article avails the important information on the various features that are with considering when selecting the most appropriate optic lens manufacturers. The reputation of the optic lens manufacturers is the first important aspect that is worth looking at when searching for the most suitable optic lens manufacturers. Where one is looking forward towards gauging the quality of the optic lens that a given manufacturer produces one should look at the reputation of the manufacturer. One of the tools that can be used in assessing the reputation of the optic lens manufacturers is the reviews posted by the various clients in the site of the optic lens manufacturers. The second way in which one can be able to determine the reputation of the optic lens manufacturers is by interviewing those people who have ever been in contact with the given optic lens manufacturers.\nThe kind of the technology that the optic lens manufacturers use in the making of the ocular lens is the second aspect that is worth looking at when searching for the most suitable optic lens manufacturers. Before buying the optical lens, one must read more about whether the technology used by the optic lens manufacturers has any negative implication. In most of the circumstances, those optic lens manufacturers who utilize the modern technology are the ones who can produce a high-quality optic lens.\nA license is the second important aspect that is worth looking at when searching for the most suitable optic lens manufacturers. When it comes to the manufacturing of the optical lens only those optic lens manufacturers that have met the required standards are given the license of operation. Before ones buy an optical lens from a given optic lens manufacturer one must research whether the optical lens manufacturers has the permission of activity. Using the Internet one can be able to identify the type of the grants the manufacturer should have.","domain":"optical_engineering"}
{"url":"http://kyle3454wqiblog.blogolize.com/Eye-Surgical-procedure-7848348","date":"2018-05-24T11:52:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794866276.61/warc/CC-MAIN-20180524112244-20180524132244-00191.warc.gz","language_score":0.9577418565750122,"token_count":1324,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__145837998","lang":"en","text":"Eye Surgery has actually come to be a mainstream approach of vision modification, as well as this short article will explain the benefits as well as drawbacks of 3 various techniques being offered to the clinical customer.\nLasik Eye Surgery\nLASIK is the phrase for Laser-Assisted Sitting Keratomileusis and is an eye medical system which completely remedies vision by eliminating a thin layer of the cornea. This procedure works best on individuals with moderate to high levels of nearsightedness (nearsightedness), low to modest degrees of hyperopia (farsightedness) as well as astigmatism related to nearsightedness, and also who have thick corneas. It is the most well-known medical vision adjustment method.\nIndividuals with normal eye view see items plainly since photos are brought into a right focal point by the cornea as well as lens of the eye. Preferably, the cornea's curvature is evenly matched to its length in a regular eye. People with astigmatism, myopia or hyperopia have actually off-and-on shaped corneas, so the items seen are not concentrated correctly. LASIK changes corneal form by specific removal of corneal cells, and also by doing so corrects the eyes' concentrating power.\nThere are, nonetheless, risks to LASIK eye surgical treatment.\nThere is a remote opportunity of full loss of vision. If this takes place, it is usually because the client had a pre-existing condition which should have averted the surgical treatment to begin with, such as maternity, cataracts, joint inflammation, diabetes mellitus, glaucoma, or lupus. People with large pupils are also bad prospects for LASIK. Dry eye disorder will certainly be aggravated by this procedure.\nA few patients complain that they permanently see \"ghost\" images, have obscured vision, lessened comparison and also negative evening vision. When LASIK wased initially presented, 5% of clients had post-operative grievances; however, refinements in the procedure have actually triggered this rate to drop to less compared to 1% if LASIK is carried out by proficient professionals as well as patients are appropriately evaluated prior to surgical treatment. If issues do happen, they could usually be resoved by a retreatment.\nFDA has approved LASIK laser eye surgical treatment considering that 1998. While there are a great deal of completely satisfied patients, there are however no long term research studies regarding its impacts. Understand the limitations as well as the dangers of LASIK eye surgical procedure before you sigh up for the treatment.\nThough less popular, these little implants can boost vision in patients with mild to moderate myopia without the risk of permanent eye damage inherent in the tissue elimination strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter form. Though slightly much less precise compared to LASIK, they are removeable as well as exchangeable, so if the individual has an unanticipated over- or under-correction, the dental implant can be eliminated as well as one more of a different size put to get the preferred modification. The implants are located beside the cornea, so the main aesthetic location is entirely undamaged as well as undamaged, and the toughness of the cornea is undiminished, making it a far better choice for pilots and those who engage in call sporting activities where eye injury is a possibility.\nIntacs are unsuitable for extreme nearsightedness as well as more than small astigmatism (1.00 diopters), as the cornea could just be stretched up until now. If the Intacs are removed, vision go back to its preoperative level. Besides vision adjustment, Intacs are additionally utilized to deal with keratoconus.\nIntacs are FDA authorized and also Ten Years studies have revealed no major issues with Intacs as well as few client complaints; nevertheless, because the procedure takes extra training than LASIK, there are less eye surgical treatment why not check here facilities providing it. Nevertheless, the Intacs website provides a list of experts in each state, too a few in Canada, Europe and also Mexico.\nBecause many individuals do not want to risk LASIK as well as Intacs can not assist those with severe vision troubles, intraocular lens implants (IOL) are a new choice approved by the FDA in 2004 to remedy moderate to extreme nearsightedness. The Artisan lens, produced by Ophtec, is similar to the kind of lens dental implant used to recover vision complying with cataract eye surgical procedure.\nThe new IOL, called the Craftsmen, is planned for just people who have 2.5 diopters or much less of astigmatism.\nThe fabricated lens does not replace the all-natural lens, however is placed before it. The primary problem discovered with the dental implant was the stable loss of endothelial cells in the corneas of individuals who got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are necessary in keeping the cornea clear. A three-year study revealed a continuous constant loss of endothelial cells of 1.8 percent a year. Now, no one can predict whether this loss will continue at the very same rate indefinitely, and even its influence on corneal function.\nTo reduce long-lasting results of the tool on the corneal endothelium, the FDA is requiring that the new lenses be identified to specify that they ought to just be dental implanted in find more info people whose corneal endothelial cells are thick enough to hold up against small cell loss.\nMore major issues were couple of: retinal detachment (0.6%), cataract growth (0.6%), and also corneal swelling (0.4%). The FDA is needing Ophtec to carry out a five-year follow-up study of its dental implant people to much better examine the post-surgical occurrence of cataract growth, retinal detachment and also other ophthalmic diseases.\nThe Artisan lens is meant to be a long-term implant.Though it could be eliminated operatively, vision could not always return to exactly what it was before obtaining the lens. Due to the fact that it does not impact astigmatism, patients with this problem may still need glasses.","domain":"optical_engineering"}
{"url":"https://endovision.eu/portfolio-item/firefly/","date":"2023-12-08T05:16:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100724.48/warc/CC-MAIN-20231208045320-20231208075320-00168.warc.gz","language_score":0.9152563214302063,"token_count":377,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__253278215","lang":"en","text":"Firefly is the leading provider of wireless portable microscopes and magnifying cameras with real-time 30FPS video transmission. Their product portfolio includes a wide variety of wired and wireless cameras as well as accessories.\nTheir cutting-edge optics technology provides users with crystal clear vision, pictures, and video.\nFirefly products are chosen by professionals from a wide range of industries including audiology, ENT, primary care, pediatrics, telemedicine, education, quality control, lab sciences, high-tech engineering, dermatology, gemology, numismatics and cosmetics.\nOperating as both manufacturer and brand, they are able to pass on savings to distributors. They have offices in North America, Europe and Asia and work with resellers such as us.\nThe DE1250 Wireless Video Endo-Camera is a special purpose digital video camera combined with a universal coupler, designed for various endoscopic applications. Powered by a rechargeable lithium ion battery, this innovative device streams high quality live video (at 30fps) to a computer, enabling the user to view and record crystal clear images or videos.\nFirefly ES201 is a compact, high powered LED light source compatible with standard endoscopes and the Firefly DE1250 Wireless Endoscope Camera. It provides brilliant LED lighting for a variety of applications. Powered by a long lasting, rechargeable lithium battery, this light source is a truly innovative and mobile solution uninhibited by wires. Unlike other portable light sources, the ES201 delivers these breakthrough capabilities – and much more – at a highly economical cost.\nThe Redfin R3800 Full HD Mobile Endoscope Camera System is a powerful, 1080p high definition video endoscopy system designed to handle the demands of diagnostic and surgical applications in otolaryngology (ENT), gynecology, urology, plastic surgery, and more.","domain":"optical_engineering"}
{"url":"https://computenext.com/do-laser-projectors-have-lamps/","date":"2024-04-14T11:33:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00373.warc.gz","language_score":0.9436803460121155,"token_count":2057,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__84221285","lang":"en","text":"The growth of projector technology can be said to have evolved from the early day bulbs fired by incandescent lights and today’s advanced lamp-free systems. In this development, laser projectors are seen as a revolution in technological innovation that has challenged the established models based on lamps for their efficiency and durability. Do laser projectors contain lamps? This article explores this issue in regard to how laser projection works, comparing it with traditional projector technology and its implications for end users. By understanding these variations, consumers will make better choices, thus reaping the benefits of laser projectors for superior viewings in different contexts such as home cinemas through to large-scale presentations.\nDo laser projectors have lamps?\nNo, laser projectors aren’t lit by lamps like we know lamp-based projectors. Conversely, Laser projectors utilize solid-state laser diodes instead of typical lamps (i.e., UHP, metal halide, and halogen). In this case, the light emitted from these diodes is utilized to create the projected image. Several benefits come with this eliminating traditional lamp technology: a long life span, which is often 20000-30000 hours or more, no need for lamp replacement, better color accuracy and more consistent brightness throughout the projector’s existence. Laser projectors are a big step forward in projection technology as they provide a more reliable and cost-effective means of enjoying high-quality displays.\nUnderstanding Projector Types\nThose who want to have the right projection system for their needs, whether it’s for home entertainment, educational purposes, or professional presentations, should know that there are different types of projectors. Lamp-based and laser projectors are the two main groups of projectors with their own features, merits as well as areas of application.\nFor many years now, lamp-based projectors have been the most popular choice. The light source in this kind of projector is usually a high-intensity bulb (for example, UHP, metal halide, and halogen bulbs). Lighting from such bulbs is made by passing through a color wheel (for one-chip DLP projector) or dichroic mirrors (LCD and LCoS projectors) used for generating and projecting images. These kinds of projectors are known because they can be used in any environment due to their versatility and affordability. Nonetheless, this leads to some limitations, including changing lamps frequently because they last between 2-5 thousand hours on average, gradually fading away in brightness and color performance with time.\nOn the other hand, laser projectors represent a newer technology that uses solid-state lasers as a light source. Unlike lamp-based projectors, laser projectors do not rely on traditional lamps but instead use red, green, and blue laser diodes to create light. This light is then directly projected or used to illuminate a DLP, LCD, or LCoS chip to produce the image. The advantages of laser projectors are significant: they offer a much longer operational life (often 20,000 to 30,000 hours or more), reduced maintenance since there are no lamps to replace, superior color accuracy, and the ability to maintain consistent brightness levels over their lifespan. Laser projectors can achieve a higher contrast ratio and are more energy-efficient than their lamp-based counterparts.\nChoosing between lamp-based and laser projectors depends on several factors, including budget, intended use, and performance expectations. Lamp-based projectors appeal more to those with a limited budget or less demanding projection needs. In contrast, laser projectors are suited for users looking for higher quality, durability, and lower total cost of ownership in the long run. As technology advances, the price gap between these two types is narrowing, making laser projectors an increasingly attractive option for a wider audience.\nAdvantages Of Laser Projectors\nLaser projectors offer advantages over traditional lamp-based projectors, making them an increasingly popular choice in various settings, from professional environments to home theaters. These advantages stem from the unique properties of laser light sources, which differ significantly from conventional lamps in terms of efficiency, lifespan, and performance. Here are the key benefits of laser projectors:\nLonger Lifespan: One of the most significant advantages of laser projectors is their extended operational life. Unlike traditional projectors that require lamp replacements every 2,000 to 5,000 hours, laser projectors can last up to 20,000 to 30,000 hours without needing maintenance or replacements. This longevity reduces the total cost of ownership over time.\nConsistent Brightness and Color: Laser projectors maintain consistent brightness and color accuracy throughout their lifespan. Traditional lamp-based projectors suffer from a gradual decline in brightness and color performance as the lamp ages. In contrast, lasers provide stable light output, ensuring the image quality remains high over the years.\nHigher Energy Efficiency: Lasers are more energy-efficient than traditional lamps. They convert electricity into light more effectively, reducing power consumption and operating costs. This efficiency also means that laser projectors generate less heat, simplifying cooling requirements and reducing energy usage.\nSuperior Color Accuracy: Discrete red, green, and blue laser light sources allow for a wider color gamut and more accurate color reproduction. This means that images projected by laser projectors are more vibrant and true to life, which is particularly beneficial for applications where color fidelity is critical, such as graphic design, photography, and film screenings.\nInstant On/Off Capability: Unlike lamp-based projectors that need time to warm up or cool down, laser projectors can reach full brightness almost instantly and be turned off immediately. This feature enhances convenience and efficiency, especially when frequently turned on and off projectors.\nReduced Maintenance: With no lamps to replace and a sealed optical engine that minimizes dust ingress, laser projectors require significantly less maintenance than their lamp-based counterparts. This saves on maintenance costs and reduces downtime and the inconvenience of servicing.\nFlexible Installation Options: Laser projectors often offer better brightness uniformity and the ability to project images from various angles without significantly losing image quality. This flexibility allows for creative installations, such as uneven surfaces, vertical displays, and immersive environments.\nEnvironmental Benefits: The longer lifespan and absence of hazardous materials (like mercury found in some projector lamps) make laser projectors a more environmentally friendly choice. By reducing waste associated with lamp replacements and operating more efficiently, laser projectors contribute to a lower environmental impact.\nCommon Myths And Misconceptions\nDespite the growing popularity and evident advantages of laser projectors, several myths and misconceptions persist, sometimes hindering their adoption. Addressing these myths is crucial for clearly understanding laser projector capabilities and making informed decisions. Here are some common myths and misconceptions about laser projectors:\nLaser Projectors Are Harmful to the Eyes\nOne common concern is that the lasers in projectors can harm the eyes. While direct exposure to any intense light source, including lasers, can be harmful, laser projectors are designed with safety in mind. They diffuse light over a wide area and incorporate safety features to prevent direct laser exposure. When used as intended, laser projectors are safe and comply with international safety standards.\nThey Are Excessively Expensive\nInitially, laser projectors were more expensive than traditional lamp-based projectors, which led to the perception that they were prohibitively costly. However, prices have significantly decreased as the technology has become more widespread. Considering their longer lifespan, lower maintenance costs, and reduced energy consumption, laser projectors often offer a lower total cost of ownership over time.\nImage Quality Is Not Superior to Lamp-Based Projectors\nSome believe that laser projectors need to improve image quality over lamp-based models. While image quality can vary across different models and brands, laser projectors generally provide superior color accuracy, brightness consistency, and a wider color gamut. These factors contribute to a more prosperous and vibrant image, often surpassing what lamp-based projectors can achieve.\nLaser Projectors Are Only Suitable for Specific Applications\nThere’s a misconception that laser projectors are only fit for high-end or specific applications, such as large venues or professional settings. However, laser technology has diversified, and models are designed for various uses, including home theaters, education, business presentations, and portable projecting. This versatility makes them suitable for various environments and budgets.\nMaintenance Is Complicated and Expensive\nAnother myth is that maintaining a laser projector is complicated and costly. In reality, laser projectors require significantly less maintenance than their lamp-based counterparts. They have no lamps to replace and are designed with sealed optics that minimize dust, reducing the need for cleaning. This translates to lower maintenance costs and less downtime.\nBrightness and Performance Degrade Quickly Over Time\nSome users believe laser projectors lose brightness and performance rapidly, similar to how lamp-based projectors degrade. While all projectors experience some degree of brightness decay over their lifespan, laser projectors retain their brightness and color accuracy much longer. The degradation is much slower, allowing them to provide consistent performance over many years.\nLaser Projectors Are Loud\nDue to cooling fans, early laser projectors were sometimes louder than their lamp-based counterparts. However, advancements in technology have led to quieter designs. Many modern laser projectors are comparable to or quieter than lamp-based projectors, making noise less of an issue.\nThe bottom line is that laser projectors represent a significant advancement in projection technology, offering many benefits over traditional lamp-based projectors. With their longer lifespan, superior image quality, and lower total cost of ownership, they present a compelling choice for a wide range of applications, from home theaters to corporate boardrooms and significant venue events. By dispelling common myths and understanding the true capabilities of laser projectors, users can appreciate the value they bring to the table. As technology continues to evolve and prices become more competitive, laser projectors are set to become the preferred choice for those seeking high-quality, efficient, and reliable projection solutions.","domain":"optical_engineering"}
{"url":"https://www.wikiful.com/@simonx/changing-the-lens-of-a-digital-slr-camera","date":"2021-12-06T09:27:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363290.59/warc/CC-MAIN-20211206072825-20211206102825-00122.warc.gz","language_score":0.9260819554328918,"token_count":495,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__130394432","lang":"en","text":"One of the advantages of SLR type digital cameras is the ability to use a variety of different lenses. Changing the lenses of your DSLR is not complicated. However, there are good and bad ways to do this. Here are some things to consider when changing goals.\nMost lenses and digital SLR-type cameras use a bayonet mount called the F-mount. Before attempting to mount or disassemble a lens, make sure the camera is turned off. To mount a lens, align the points of the lens mount index and the camera body, insert the lens base into the mount, and then turn the lens to the left until that it locks. To remove it, simply press the shutter button on the body and turn the lens a quarter turn clockwise.\nLens mounting sequence\nWhenever you change the lens of an SLR, dust may get inside the camera. This dust can settle on the low-pass filter placed directly in front of the image sensor and leave black or gray spots or dots on your photos. To prevent this from happening, you should keep the exposure from inside the camera body as low as possible when changing lenses. This means that the lens you want to mount on the camera must be ready before you remove the lens in place. You must ensure that the camera is turned off before changing the lens, as the image sensor generates a static electric charge that can attract dust. If you are using a VR (vibration reduction) lens, you also need to put the VR switch on the lens barrel in off mode. Then protect your camera by sheltering yourself from wind, rain or dust that may enter it.\nWhen handling a lens, grasp the lens barrel and avoid touching the front and rear elements so as not to leave fingerprints. Make a habit of always using the front and rear lens caps to further protect the lens components. Practice changing goals at home to do it quickly and easily.\nOne of the biggest advantages of interchangeable-lens reflex-type cameras is that users can choose from a wider selection of lenses. Maintaining the same basic lens mount structure over a longer period of time means a larger and steadily growing range of compatible lenses. For this reason, the lens mount is an extremely important and symbiotic element for photography enthusiasts and professionals alike, as they can benefit from the continued use of their carefully selected collection of lenses.\nRead more: https://www.dzoptics.com/en/","domain":"optical_engineering"}
{"url":"http://www.chinaqualitycrafts.com/wholesale/pz6178d3a-cz50573d7-waterproof-solar-light-lamp-battery-operated-solar-led-wall-lights-outdoor.html","date":"2020-02-16T18:27:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875141396.22/warc/CC-MAIN-20200216182139-20200216212139-00141.warc.gz","language_score":0.7180538773536682,"token_count":601,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__27545638","lang":"en","text":"Waterproof Solar Light Lamp Battery Operated Solar LED Wall Lights\n|Material||ABS + PC||Model Number||GS-BD-5Wc-1|\n|Light Source||30pcs LEDs||Charging Time||6-8 hours|\n|Package||Neutral Package||Working Time||2-3 nights|\n|Light Angle||120°||IP Rating||IP65|\n|Battery Capacity||3000mAh||Product Dimension||210*117*80mm|\n|Solar Panel Capacity||5.5V / 2W||Housing Color||White/ Black|\n|Working Humidity||(20-90)%RH||Sensing Distance||0-8m|\n|Luminous Efficient||100lm/w||Backlight||Red /Blue /Green /Warm white colors option|\nAdvantages for Solar LED Wall Lights Outdoor :\n1 Green solar energy\nHigh quality solar panel, absorb solar energy circularly, saving\nyour annual electricity bill!\n2 Durable & Waterproof\nDurable and rain-proof ABS material Light housing, make the light\nworks stably in rainy day!\n3 Smart motion sensor\nEquipped with PIR sensor, sensing your motion within 8m and turn on\nthe light automatically!\n4 Simple Installation\nThe light can be mounted on the wall in seconds, without any\nelectrician, saving your labor costs!\n5 Super Brightness Design\nUse 30pcs SMD LEDs as Light Source, high luminuos efficiency\n(100lm/w), low light decay, long lifespan.\n|Box*1||Light*1||User Manual*1||Installation Card*1||Accessories*1|\n1.Are you a factory or trading company?\n- Manufacturing & Trading combo.\n2.What's frequency of a new item designed?\n3.How about lead time?\n- Samples in stock; 10~20 working days for mass production.\n4.OEM or ODM will be ok?\n5.Will you come to visit clients?\n- Absolutely,for any potential cooperation chance.\nWhy do you need one solar motion light ?\nIf you’re looking for an unobtrusive and powerful Solar motion\nsensor light, Our Waterproof Solar Light Lamp Battery Operated\nSolar LED Wall Lights Outdoor is a solid choice. It’s a 30PCS SMD LEDs outdoor light that’s\nwaterproof, dustproof, and made of high impact ABS plastic, so it’s\nnot only bright, but also durable.\nWhether you use the light to illuminate a dark walkway for safety\nor as security lighting that helps scare off a would-be burglar,\nyou’ll appreciate that the light stays on a dimly it mode. Once\nmotion is detected within a eight meter activation zone, the light","domain":"optical_engineering"}
{"url":"http://silink.en.alibaba.com/product/763749254-212665037/AMP_face_plate_British_Style_Angled_Faceplate_Quad_Port.html","date":"2018-01-20T20:56:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889733.57/warc/CC-MAIN-20180120201828-20180120221828-00627.warc.gz","language_score":0.8107354044914246,"token_count":374,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__6941371","lang":"en","text":"AMP face plate British Style Angled Faceplate Quad Port\nThe faceplate is designed for mounting the 110Connect Modular Jack families\nAMP Faceplate Feature 1, BS Angled Faceplate 2, Dimension: 86mm X 86mm BS 3, Accepts all SL / AMP-TWIST Series Jacks 4, Colour: White 5, Standard icons, screws and label holder included\nShenzhen Silink Technology Co., Ltd. is a leading manufacturer and exporter specializing in fiber optical communications equipments,optical transceiver modules and network cabling products. Optical transceiver modules: SFP, SFP+,GBIC, XENPAK, X2 , XFP, BIDI,CWDM,DWDM,Media Converter and other special transceiver modules,which are compatible with Cisco, 3COM, H3C, HP, Alcatel-Lucent, Allied Telesis, Nortel, Juniper, Huawei,etc. Network cabling products: keystone jack,patch panel,patch cord,faceplate,etc. Fiber optical communications equipments: fiber optic patch cord, connector, adapter, optical coupler, attenuator, optic media converter, optic splice closure, optic terminal box, ODF etc. These products are widely used in telecommunications, broadband, broadcast, CATV and network industry\nPacking & Delivery\n1, Antistatic bag 2, Plastic boxes for packaging 3, Specific packaging as Request, Original packaging\n1, T/T, Western Union, Paypal and so on.\n1, International Express: DHL, FedEx, UPS, TNT, Aramex and so on. 2, You also can choose your own shipping forwarder, please notify us in advance. 3, Shipments are usually dispatched in 2-3 working days after received payment.","domain":"optical_engineering"}
{"url":"https://amarineblog.com/2019/12/11/what-is-rt-film-density/","date":"2023-06-06T22:16:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653183.5/warc/CC-MAIN-20230606214755-20230607004755-00290.warc.gz","language_score":0.9243550896644592,"token_count":213,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__160892306","lang":"en","text":"RT Film Density Definition;\nIntensity (Density) of the Film from the Radiography Testing (RT) refers to the darkness of the RT film as measured by the amount of light that can penetrate RT film came to light that indicates that the Film with density is low, but if. Low light means that the film has a high density.\nRT Film Density Measurement;\nMeasuring the intensity (Density) of the Film from the Radiography Testing (RT) can be achieved.\n- Using a Densitometer to measure the amount of light that penetrates directly through the RT film, the device will display the number of film intensity\n- Use Standard Film with different levels of intensity (Step Wedge Comparison Film) to compare with the intensity of our RT film\nRT Film Density Criteria per ASME V;\nASME Section V the RT film has to be dark (Density), and the difference of intensity as required so that it can be seen welding and Defect on Film is clear.","domain":"optical_engineering"}
{"url":"https://www.optikskarkhana.net/company-information.html","date":"2019-04-26T06:04:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578760477.95/warc/CC-MAIN-20190426053538-20190426075538-00333.warc.gz","language_score":0.9357652068138123,"token_count":158,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__37835757","lang":"en","text":"Why Optical Lenses Are Used in Lights?\nOptics are one of the essential elements that are used in an LED luminaire. They are used to focus, shape and mix the light, which is produced by the LED light sources. Optics are also used in LED lights for effectively mixing colours and getting efficient performance. Role of Optical Lenses in LED Lights\nOptical lenses play a vital role in the distribution of light in street & flood lights. Due to their rotational symmetric design, these are able to generate a proper illumination on the roads. Some more uses of Optical LED Lenses\nare given below:\n- Provide focused light beam\n- Enhance the illumination efficiency\n- Provide uniformity in light distributional\n- Protect the LED's from outer environmental conditions","domain":"optical_engineering"}
{"url":"https://www.abextech.co.th/product-and-solutions/optical-instrumentation/field-test/visual-light-source/optical-fiber-identifier-fi-3a/","date":"2022-06-27T18:18:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103337962.22/warc/CC-MAIN-20220627164834-20220627194834-00320.warc.gz","language_score":0.7879896759986877,"token_count":217,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__22140792","lang":"en","text":"Optical Fiber Identifier (FI-3A)\nThe FI-3A Optical Fiber Identifier is a low cost and handheld device designed to detect optical signals in live fibers. It is used during maintenance, installations, rerouting or restoration when isolating a specific fiber is necessary. By simply clamping the FI-3A onto a fiber, any existence of signal or traffic and signal direction can be detected.\n– “One-button meter”, convenient and easy to use\n– Different adapters for different bare fibers and jacketed fibers\n– Detect a variety of optical tones, 270Hz, 1kHz and 2kHz\n– Powered by 2 units of 1.5V AA alkaline batteries\nE-mail : email@example.com\n+66 2 559 3261 – 2 (Office)","domain":"optical_engineering"}
{"url":"https://www.csfieldguide.org.nz/en/chapters/computer-vision/lights-camera-action/","date":"2022-01-23T19:00:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304309.5/warc/CC-MAIN-20220123172206-20220123202206-00069.warc.gz","language_score":0.9592179656028748,"token_count":369,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__46336344","lang":"en","text":"Digital cameras and human eyes fulfill largely the same function: images come in through a lens and are focused onto a light sensitive surface, which converts them into electrical impulses that can be processed by the brain or a computer respectively. There are some differences, however.\nHuman eyes have a very sensitive area in the centre of their field of vision called the fovea. Objects that we are looking at directly are in sharp detail, while our peripheral vision is quite poor. We have separate sets of cone cells in the retina for sensing red, green and blue (RGB) light, but we also have special rod cells that are sensitive to light levels, allowing us to perceive a wide dynamic range of bright and dark colours. The retina has a blind spot (a place where all the nerves bundle together to send signals to the brain through the optic nerve), but most of the time we don’t notice it because we have two eyes with overlapping fields of view, and we can move them around very quickly.\nDigital cameras have uniform sensitivity to light across their whole field of vision. Light intensity and colour are picked up by RGB sensor elements on a silicon chip, but they aren’t as good at capturing a wide range of light levels as our eyes are. Typically, a modern digital camera can automatically tune its exposure to either bright or dark scenes, but it might lose some detail (e.g. when it is tuned for dark exposure, any bright objects might just look like white blobs).\nIt is important to understand that neither a human eye nor a digital camera – even a very expensive one – can perfectly capture all of the information in the scene in front of it. Electronic engineers and computer scientists are constantly doing research to improve the quality of the images they capture, and the speed at which they can record and process them.","domain":"optical_engineering"}
{"url":"http://ait-survey.com/ict/tools/hardware-visualization/ccd-vs-cmos","date":"2020-04-02T12:41:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370506959.34/warc/CC-MAIN-20200402111815-20200402141815-00014.warc.gz","language_score":0.9311618208885193,"token_count":553,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__77904769","lang":"en","text":"Lidar (light detecting and ranging)\nLidar is similar to radar, except that the sensor sends out and receives pulses of light instead of radiowavers.\nThey’re what’s responsible for converting light into electronic signals.\nBut, what’s the difference between the two? How do they influence both the quality of the images and the prices of the cameras? Here’s a short comparison of CCD and CMOS:\nThe first digital cameras used CCD (Charged Coupling Devices) to turn images from analog light signals into digital pixels. They’re made through a special manufacturing process that allows the conversion to take place in the chip without distortion.\nThis creates high quality sensors that produce excellent images. But, because they require special manufacturing, they are more expensive than their newer CMOS counter parts.\nCMOS (Complimentary Metal Oxide Semiconductor) chips use transistors at each pixel to move the charge through traditional wires. This offers flexibility because each pixel is treated individually. Traditional manufacturing processes are used to make CMOS. It’s the same as creating microchips. Because they’re easier to produce, CMOS sensors are cheaper than CCD sensors.\nBecause CMOS technology came after CCD sensors and are cheaper to manufacture, CMOS sensors are the reason that digital cameras have dropped in price.\nThe biggest difference is that CCD sensors create high quality images with low noise (grain).\nCMOS images tend to be higher in noise. CCD sensors are more sensitive to light. CMOS sensors need more light to create a low noise image at proper exposure. This does not mean that CMOS sensors are completely inferior to CCD.\nCCD has been around for a lot longer in digital cameras, and the technology is more advanced. CMOS sensors are catching up and will soon match CCD in terms of resolution and overall quality.\nIt’s only a matter of time before CMOS catches up. They can be manufactured on any standard silicon production line and are much more inexpensive when compared to CCD sensors. Eventually economics will someday make every camera CMOS when the final advances in quality are made.\nIn fact, CMOS sensors are already superior to CCD sensors in terms of power consumption. You get a much longer battery life out of a CMOS camera, which means you can take more pictures.\nAs of now, CCD cameras produce higher quality images at high resolutions. CMOS technology is catching up. And, with longer battery life and less expensive cameras, it is bound to match CCD levels of quality and one day become the digital camera norm, until something better is developed.","domain":"optical_engineering"}
{"url":"http://www.liveatpc.com/ricoh-shows-off-latest-theta-360-degree-camera-with-4k-video-and-livestreaming/","date":"2017-05-25T16:07:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-22/segments/1495463608107.28/warc/CC-MAIN-20170525155936-20170525175936-00141.warc.gz","language_score":0.883740246295929,"token_count":238,"dump":"CC-MAIN-2017-22","global_id":"webtext-fineweb__CC-MAIN-2017-22__0__42064389","lang":"en","text":"Ricoh Shows off Latest Theta 360-Degree Camera With 4K Video And Livestreaming\nRicoh announced it will be showcasing a prototype of its newest Theta 360-degree camera, capable of capturing high-resolution 4K video in a single shot, at the 2017 NAB Show in Las Vegas.\nIn addition to capturing 4K video at 30 frames per second, the new camera will enable 4K 360-degree livestreaming, and a built-in 4-channel microphone will record spatial “surround-sound” audio.\nThe new camera is expected to be launched later in the year.\nFirst introduced in 2013, Theta cameras allow consumers to record fully spherical images that show the entirety of a scene in photos or videos.\nThe camera line’s combination of small size, high quality imagery and incredible functionality are a result of Ricoh’s many decades of experience in advanced imaging and optical technologies.\nA key achievement with the Theta series is an ultra-small twin-lens folded-optical system capable of capturing two wide-angle images and then marrying them into a single spherical image.","domain":"optical_engineering"}
{"url":"https://midwestgrowco.com/products/hlg-550-v2-bspec","date":"2021-09-17T06:37:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780055601.25/warc/CC-MAIN-20210917055515-20210917085515-00248.warc.gz","language_score":0.6541796922683716,"token_count":155,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__135154729","lang":"en","text":"The Commercial Indoor Horticulture LED grow light is designed to replace a single-ended 1000watt HID. Each HLG-600 uses 4 of our custom designed full-spectrum high efficiency white light quantum boards with Samsung LM301B and Blue 470nm . This unit is dimmable.\n|Voltage Range||90-277 VAC|\n|LED||Samsung LM301B & Blue|\n|Veg Footprint||6' x 6' at 36”|\n|System Efficiency||166 Lm/W|\n|System PPF Efficacy||2.55 μmol/joule|\n|Total output||1175 PPF|\n|Recommended Mounting Height||24-32 inches above canopy|","domain":"optical_engineering"}
{"url":"http://floridadiver.net/lensbaby-launching-circular-180-video-lens-accessory-for-gopro/","date":"2018-02-21T08:48:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813602.12/warc/CC-MAIN-20180221083833-20180221103833-00317.warc.gz","language_score":0.9049456715583801,"token_count":432,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__265305731","lang":"en","text":"Camera accessory company Lensbaby is launching a new circular 180+ video lens accessory for the GoPro Hero4, giving GoPro users the ability to capture 185º field-of-view with a circular fisheye lens.\nThe Lensbaby Circular 180+ lens creates fully circle fisheye videos and images with an almost unlimited depth of field, letting you capture the soul of your adventures with a fully immersive field of view. Attaching to the current waterproof housing on GoPro® Hero cameras, the Circular 180+ captures a 185 degree window on the world, wider than the human eye can see with unprecedented depth of field – subjects nearly touching the front of the lens are sharp, along with everything else in the image.\nThe Lensbaby Circular 180+ fits over the current waterproof housing on GoPro’s Hero® cameras. To attach it, simply unscrew the knob to loosen the mount and push the lens onto the GoPro® housing. Push firmly so it seats evenly. Screw the mount down tightly, while continuing to push firmly.\n- Fits on the current waterproof housing for GoPro® Hero cameras\n- 185 degree field of view and a fully circular image in 16:9 wide recording mode (underwater full circular field of view: 120 degrees)\n- Increases the GoPro® Hero’s depth of field making nearly everything in focus\n- Lens housing is waterproof to withstand extended immersion up to 3 meters (IP68 standard)\n- Included water resistant mount is built to withstand heavy splashes of water with little or no leakage between the lens housing and the GoPro® Hero’s housing**\nAdd-on Waterproof Mount is waterproof to withstand extended immersion up to 3 meters and replaces the glass on the front of the standard GoPro® housing (T5 torx driver included with purchase).\nThe manufacturing and launch is being funded with a Kickstarter campaign, which gives consumers an opportunity to pre-order the lens. The campaign went live this morning and will run until late June. For $69, donors will receive a unit as soon as they’re available, saving $31 over the expected retail price.","domain":"optical_engineering"}
{"url":"https://www.issmc.cnr.it/en/research/projects/other-projects-2/try/","date":"2024-04-25T14:21:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297295329.99/warc/CC-MAIN-20240425130216-20240425160216-00619.warc.gz","language_score":0.9008479118347168,"token_count":515,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__21130909","lang":"en","text":"Thulium doped sesquoxide tRansparent ceramics for high energy class laser in nano second regime at crYogenic temperature.\nPrincipal investigator:Valentina Biasini\nStart date: 01/01/2020\nDuration: 36 mesi\nCo-funded by the bilateral agreement between CNR and Czech Academy of Science\nCo-funding: 12 000 €\nCall/Action: CNR/CAS 2019-2021\nProject consortium: CNR-ISTEC e HiLASE Centre, Institute of Physics, Czech Academy of Science\nSolid state laser sources operating around 2 μm have numerous applications that include lidar, gas sensing, medical treatments and as pump source of optical parametric oscillators (OPOs). These potentialities have prompted intense research in the development of new laser gain media for the 2 μm wavelength range. Sesquioxides doped with Tm3+, such as Tm:Lu2O3, Tm:Y2O3, and Tm:Sc2O3, are emerging materials for this applications: their better thermo-optical properties make them promising for power scaling applications. The growth of sesquioxide single crystals is very complicated, while in principle it is possible to produce them in transparent ceramic form thanks to their cubic crystalline structure and optical isotropy. However, to achieve transparency, ceramics need to be free of pores and defects.\nThe goal of the project is to develop thulium doped sesquoxide transparent ceramics for high-energy class lasers working in nano second regime at cryogenic temperature.\nA fabrication process for high quality Tm:Y2O3 transparent ceramics of different doping will be developed, using commercially available oxide powders as raw materials and testing different sintering additives.\nFinally, laser experiments at cryogenic temperatures will assess the suitability of this material for development of diode-pumped high-energy lasers. The fabricated transparent ceramics will be tested in laser resonators to study the impact on laser performance in continuous-wave regime and pulsed regime (active and passive Q-switching) at cryogenic temperatures.","domain":"optical_engineering"}
{"url":"https://chat901.info/oakley-sunglasses-polarized-why-infusion-molding-creates-a-better-pair-of-sunglasses/","date":"2021-04-12T12:20:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038067400.24/warc/CC-MAIN-20210412113508-20210412143508-00522.warc.gz","language_score":0.9466140866279602,"token_count":831,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__261798024","lang":"en","text":"Since you are reading this page, chances are you are most likely familiar with the high level of quality, innovation and technology that Oakley puts into their sunglasses. The Oakley sunglasses polarized lenses are of course, not an exception to the rule.\nPolarized sunglasses are specifically designed to reduce or block glare. Light reflected from surfaces such as a car windshield, flat road or water can generally be considered polarized. Meaning that, instead of the light being scattered in multiple directions the reflected light travels in a more horizontal direction, which can create an often annoying and, in some cases very dangerous intense light referred to as “Glare.”\noakley were first very popular with fishermen and boaters who were constantly surrounded by the glare being reflected from the sunlight on the water. The polarized lenses allowed improved visibility and reduced eye strain when being out on the water. Since then polarized sunglasses have become more popular with people engaging in active outdoor activities.\nPolarized lenses contain a special light filter that blocks this type of intense reflected light, reducing glare. This glare reduction allows for improved visibility and less eye strain. Even though polarized sunglasses improve comfort and visibility, there are some instances when these lenses may not be the most beneficial. Downhill skiing is an example, of when it may be more beneficial to see the glare that is reflecting off icy patches, as this can alert skiers to potential hazards as they approach.\nPolarized lenses may also reduce the visibility of images produced by liquid crystal displays (LCDs). This could be an issue as there is an increase in LCD’s being utilized for car dashboard readouts, digital screens on automatic teller machines (ATM’s), cell phones, and GPS devices. Pilots also have reported similar issues when viewing LCD’s on aircraft instrument panels, which can be a crucial issue.\nPolarized lenses differ from non-polarized lenses in one main way. Vertical polarization blocks transmission of the horizontal light through polarized lenses. The result is that polarized sunglass lenses reduce glare created by the sun’s reflection on flat surfaces. The difference between polarized and non- polarized lenses is quite apparent when compared side by side.\nOakley Sunglasses Polarized = Clear, Crisp Vision\nMost sunglasses manufactures apply a polarized coating or a layered method of gluing a film between the lenses to their sunglasses to reduce glare. The problem is that this process can reduce visual clarity and cause distortion.\nNow, as you might expect, Oakley strives to surpass most other sunglasses manufactures and has done so with their polarization technology. Oakley polarized sunglasses are produced with a higher level of technology using a liquid infusion process designed to bond the polarizing filter and lenses at the molecular level. The significance of this process is that the polarization effect doesn’t wear or rub off as with other manufactures, and visual clarity is maintained at the highest levels.\nIndustry Standards For Polarized Sunglasses\nIndustry standard polarized filters are required to be fitted in a frame so the polarization plane does not deviate from the horizontal plane by greater than five degrees. The difference between the left and right eye polarization filters cannot deviate more than six degrees. (This means that each eye could be seeing vastly different orientations of an object, causing your brain to work extra to make sense of the object).\nOakley Sunglasses Polarization Standards\nAs you may again have guessed, Oakley polarized filters are aligned within 2 degrees from the horizontal plane and are nearly identical left to right. This translates to a reduction of eye strain and brain power to make sense of the images seen in the right and left eyes. Maybe that’s why people often get headaches from wearing those cheap sunglasses.\nPolarization is just one of the many proprietary technologies that Oakley infuses into it’s sunglasses. These patented innovations are known collectively as H) and provide unsurpassedefinition vision through these highest of performance polarized sunglasses, it may be difficult to take them off. Check out the Oakley polarized sunglasses, I think you may be pleasantly impressed.","domain":"optical_engineering"}
{"url":"https://spiderholster.com.sg/product/spider-lens-wipe-120-pack/","date":"2021-11-27T22:50:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964358323.91/warc/CC-MAIN-20211127223710-20211128013710-00055.warc.gz","language_score":0.796766996383667,"token_count":226,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__51847518","lang":"en","text":"Spider Lens Wipe 120 pack\nThe NEW Spider Lens Wipes provides genuine safe and convenient cleaning for all kinds of lenses, optics and cellphones surfaces. Open, wipe and dispose, it’s that easy!\n– ALL LENSES: Suitable for a wide range of lenses including camera, eyeglass, webcam, binoculars, microscopes.\n– ANY MIRRORED SURFACE: Can be used on anti-reflective coatings on laptops, GPS and cell phone screens.\n– SCRATCH FREE: Remove dirt, fingerprint and oils, lift dust and clear smudges without scratching your expensive optical lens.\n– PROTECT: Maintain your valuable camera gear and optical wear in optimum condition.\n– STREAK FREE: Ammonia free cleaning solution dries instantly, leaving no streaks or residue.\n– ANTI-FOG: Contains an Anti-Static, Anti-Fog formula to reduce build up of dust and lint.\n– 100 + 20 individually packed Lens Wipes","domain":"optical_engineering"}
{"url":"https://ewtnet.com/technology/researchers-develop-solar-panels-that-still-let-the-sunlight-through","date":"2021-10-21T17:29:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585439.59/warc/CC-MAIN-20211021164535-20211021194535-00653.warc.gz","language_score":0.9233145117759705,"token_count":250,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__27772493","lang":"en","text":"The new transparent solar panels are a flexible, plastic cell that pulls energy exclusively from the infrared spectrum of the sun’s rays. At the same time, the panels allow the visible light to pass though pane that’s nearly 70 percent transparent.\nPrevious attempts at developing transparent solar panels have always resulted in a poor balance between efficient energy production and transparency. These researchers, however, developed a special recipe that’s achieved a 4 percent power-conversion efficiency rate while being the most transparent solar panel ever created.\nThe researchers created the clear solar panel by using a polymer that’s sensitive to near-infrared light overlaid with a silver nanowire composite as a transparent electrode. The biggest breakthrough of the research was the creation of a transparent electrode, produced by mixing silver nanowires with titanium dioxide nanoparticles, to replace the opaque metal electrode that was used in the past.\nPolymer solar cells are a particular item of great interest because they are lighter, more flexible and potentially cheaper to produce at high volume than traditional solar panels. If the scientists work out a way to mass-produce their clear solar cells, the cells could be integrated into every home, skyscraper, car, and mobile device.","domain":"optical_engineering"}
{"url":"https://knpr.org/show/knprs-state-of-nevada/2013-11-12/seeing-things-what-weve-learned-from-the-hubble-telescope","date":"2023-11-28T09:00:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00692.warc.gz","language_score":0.9436700940132141,"token_count":105,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__216545348","lang":"en","text":"Seeing Things: What We've Learned From The Hubble Telescope\nIn 1990, NASA launched a telescope into space. Although the telescope was smaller and less powerful than those on the ground, it had the significant advantage of viewing stars and planets from space. The Hubble Telescope has beamed thousands of images to Earth and changed the way we think about the universe. One of the senior scientists from the project joins us to talk about how the telescope revolutionized astronomy.\nDavid Leckrone, retired senior project scientist, Hubble Telescope, NASA","domain":"optical_engineering"}
{"url":"https://spaceflight.com/next-up-rl-5-an-electron-launch-with-canon-electronics/","date":"2023-04-02T02:28:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296950373.88/warc/CC-MAIN-20230402012805-20230402042805-00267.warc.gz","language_score":0.9338935017585754,"token_count":213,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__128501612","lang":"en","text":"Our next mission, dubbed RL-5 – representing our 5th launch on a Rocket Lab Electron, is less than a week away. The launch window for RL-5 opens October 20th at 5:14pm ET.\nThe design of our mission patch highlights the “night vision” capabilities of Canon Electronics Inc.’s CE-SAT-IIB, a technical demonstration microsatellite that will add to its Earth-imaging satellite constellation. It also features the Sakura or cherry blossom, a symbolic flower of the spring and a very important a special flower for the people of Japan.\nWe’re coordinating the launch of Canon Electronics’ CE-SAT-IIB which has three cameras onboard with different resolutions, fields of view and sensitivities, which will demonstrate its capabilities by taking images of the Earth. It has a middle size telescope equipped with an ultra-high sensitivity camera to take night images of the Earth and small size telescopes, which are suitable for CubeSat use.","domain":"optical_engineering"}
{"url":"https://jobs.mmc.vc/companies/gardin","date":"2023-03-27T23:13:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948708.2/warc/CC-MAIN-20230327220742-20230328010742-00148.warc.gz","language_score":0.9142904281616211,"token_count":192,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__252650565","lang":"en","text":"At Gardin, our vision is simple, to create a real-world operating system that will power the future of farming by helping food producers deliver superior yields, nutrition and quality. A complete closed-loop growth & nutritional optimisation platform for all crop production. Our state-of-the-art optical remote sensing technology, machine vision and analytics, allow producers to measure plant physiology and proactively adjust parameters for optimised operations. Gardin enables end-to-end control of the process. Resulting in less waste with increased efficiency, improved margins from higher quality, and healthier consumers from the ability to measure and quantify the nutritional content of our food.\nFounded in 2020gardin.co.ukInaccurate data? Flag it here.\nOpen jobs at Gardin\nThis company does not have jobs relevant to this job board at this time.\nTo view all their jobs, visit their website.","domain":"optical_engineering"}
{"url":"http://infieleschile.es.tl/4-Rancheras-y-0-Funerales.htm","date":"2017-12-12T23:48:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948520042.35/warc/CC-MAIN-20171212231544-20171213011544-00238.warc.gz","language_score":0.8238610029220581,"token_count":319,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__122840255","lang":"en","text":"Comentado por Gigabit fiber converter( ), 08-04-2013, 17:20 (UTC): They are designed to cover a variety of wavelength ranges to suit all optical testing needs and usually the optical light sources are used with the fiber optic power meter to test the fiber system loss\nComentado por Alex( link_ejrog_hotmail.com ), 04-01-2013, 03:16 (UTC): muy bueno\nComentado por gucci bags( jw14j3gmail.com ), 20-07-2012, 09:41 (UTC): Great site and a great topic as well i really get amazed to read this thanks.\nComentado por cheap christian louboutin( h3rp3gmail.com ), 20-07-2012, 09:06 (UTC): It's really a nice and helpful piece of information. I'm glad that you shared this helpful info with us. Please keep us informed like this. Thanks for sharing.\nComentado por christian louboutin pumps( fgg5wygmail.com ), 20-07-2012, 08:25 (UTC): Your blog is both simple and very be able to bear or endure look,text content is very rich,after reading deeply moved,very calls..\nAñadir comentario acerca de esta página:\nHoy habia 10 visitantes (38 clics a subpáginas) ¡Aqui en esta página!","domain":"optical_engineering"}
{"url":"https://www.llanelliherald.com/7254/the-astonishing-power-of-blue-leds/","date":"2023-12-05T09:30:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00213.warc.gz","language_score":0.9554889798164368,"token_count":821,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__273484993","lang":"en","text":"At an American football match, thousands of spectators held up their phones in unison in an impressive star formation that filled an entire stadium. A video message celebrating the Michigan football team was shown on a giant screen.\nThe Michigan Stadium unveiled a new visual display system on September 16. It featured colored lights that created a visual excitement.\nThe light show was created to complement the colors of the Michigan football team, which are blue, yellow, and “maize.” According to Jake Stocker, the new system greatly enhanced the experience of the fans inside the stadium.\nLike other major sports arenas, the Michigan Stadium uses light-emitting devices known as LEDs for its light show.\nBefore the LED technology was invented, the powerful blue light that the Michigan Stadium uses would have been considered incredibly advanced.\nAccording to researchers, the energy-efficient and cheaper LEDs could lead to significant advancements in various fields, such as virtual reality headsets and outdoor lighting.\nAccording to Brad Schlesselman, a senior research engineer for Musco Lighting, the various colors featured in the stadium’s light show are produced using LED units and fixtures. The company’s systems can mix different colors by varying their intensity.\nHe noted that the increasing number of schools and communities in Michigan that are using LED lighting for their public facilities has led to the development of new theatrical and color-changing systems in casino online casino. Cities and towns throughout the US are beginning to use LED lighting systems on structures for various reasons; one such example being pink light being used this month as part of the campaign against breast cancer awareness.\nThe Las Vegas Sphere, inaugurated last month, is one of the world’s most impressive installations using LED lights. Comprised of millions of these light-emitting diodes that emit millions of different patterns upon its exterior surface.\nEven as LED technology has advanced over recent decades, many still considered LED devices ineffective during the 1970s and 80s, according to Paul Scheidt from Cree LED’s senior marketing manager Paul Scheidt said devices weren’t practical during those decades.\nThanks to the technological advancements that occurred in the field of lighting during the past couple of years, engineers could create more efficient and effective LEDs. As electrons transition between higher states and lower ones, their released energy manifests itself as light. By using different materials to control its color and size, users are able to finely tune this illumination source.\nGiven the complexity of materials needed for blue LED production, it proved impractical. But due to their powerful energy outputs and versatile character, blue was still used as the basis of TV displays for various colors. For instance, if a TV displays the red and green colors, the blue LEDs would just illuminate them.\nLEDs have become the go-to solution for creating white light sources, often adjusted using phosphors; scientists believe they could even become even more energy-efficient in future applications.\nStanford University researchers led by Dan Congreve are exploring new methods of creating LEDs using perovskite crystals – commonly found in solar cells – as their material for LED production. Perosite production is inexpensive and simple, and their colors can easily be tailored according to preference.\nUnfortunately, maintaining the stability of these devices is no simple feat. According to Congreve, these devices keep breaking after a couple of tests. John Buckeridge from University College London states that researchers have made substantial strides toward increasing stability of perovskite LEDs.\nIf these challenges can be successfully surmounted, these LEDs could find wider application in various applications. In Japan, a group of scientists recently developed a blue LED that only requires a single AA battery to power it. This is an impressive achievement, Congreve noted.\nThe scientists utilized a clever physics trick to increase the number of photons produced by the system. Conventional LED lights up when power is applied, producing states of excitement that are usually not enough to emit light. By encouraging these excited states to produce light, the researchers were able to use less energy.","domain":"optical_engineering"}
{"url":"https://vksolar.com/en/did-you-know-real-power-and-fake-power-of-solar-lights/","date":"2022-12-09T13:07:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711396.19/warc/CC-MAIN-20221209112528-20221209142528-00019.warc.gz","language_score":0.9460309743881226,"token_count":315,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__118542901","lang":"en","text":"Some customers wonder why Viet Sky Solar’s solar lights have a very low power, only about 15W, 30W while many solar lights in the market have a power of up to 100W, 200W, since then, customers worry whether with such a low power, the lamp will be bright enough. If you also have the same question, don’t skip this article!\nYou have heard a lot about light power, but have you ever heard of 2 concepts REAL POWER and FAKE POWER? Actually, there is a small but important information that Viet Sky wants to share with you, that is the power does not completely determine the brightness of the light, the W unit is just the power consumption of the LED chip. The brightness of the light depends on the lumen unit, the higher the lumen, the brighter the light.\nThe specifications, concretely the power that we give you are 100% real power. Unlike traditional lights that use AC 220V power, solar lights use battery have a voltage of only about 3.2V to 3.7V, so compact solar lights you use in front of your house cannot have the power as large as ordinary electric lights, solar lamps with real power up to 100W must have the size of solar panels and inside batteries extremely large.\nTherefore, if you see a solar light advertised with a large power, you should consider for a bit whether it is true power, or just virtual power for you to easily imagine. And remember that wattage does not determine the brightness of the light.","domain":"optical_engineering"}
{"url":"https://www.roechling.com/us/automotive/about-roechling-precision-components/quality-management","date":"2019-06-16T08:33:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998084.36/warc/CC-MAIN-20190616082703-20190616104703-00168.warc.gz","language_score":0.8776509761810303,"token_count":319,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__138216709","lang":"en","text":"Comprehensive measurement reports for determining component quality and approving for serial production are created. At a given site, the Röchling Precision Components Group uses tactile and optical measurement devices, which are operated by metrologists.\nThe following measurement processes are available in-house:\n- 3-D coordinate measuring machine (CMM)\n- CNC-guided optical measuring machine\n- Gloss measuring device\n- Color measuring device\n- Roughness measuring device\n- Contour measuring device\n- Shore hardness measuring device MVR measuring device (melting index)\nCAQ stands for Computer Aided Quality Assurance. The Röchling Precision Components Group uses this technology to document and archive all data relevant to quality. Röchling Precision Components uses an integrative system, which is embedded in existing IT systems. It is possible to reproduce processes and assure quality.\nHigh production standards are monitored through defined quality tests until product shipping. The measurement and testing systems are regularly serviced and calibrated. The CAQ system helps Röchling Precision Components to ensure reliable processes.\nWithin the framework of the CAQ system, Röchling Precision Components addresses:\n- Test planning\n- Control Plan\n- Complaint management\n- Administration of test resources\n- Management of measures taken\n- SPC evaluations\n- Supplier evaluations\n- Capability assessments\nSystematic use of process oriented Quality Management Systems creates the condition for a long-term increase in Quality. Continuous guarantee of component and series quality are central management tasks within the Röchling Precision Components Group.","domain":"optical_engineering"}
{"url":"https://barsonyistvanalapitvany.hu/pressure-and-isurzjd/febdb6-laser-cutting-types","date":"2021-12-08T21:28:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363598.57/warc/CC-MAIN-20211208205849-20211208235849-00336.warc.gz","language_score":0.9273929595947266,"token_count":5430,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__124545021","lang":"en","text":"It can be used with both metals and non-metals. Since then the technology has evolved, and it can cut metals too, although it is still better suited to non-metals. There are three types of lasers: The CO2 laser – used for engraving, cutting and boring. CO2 lasers produce invisible light, in the far infrared range of the light spectrum. To help make it clear to you which process does what, we have put together this comprehensive guide on the various types and techniques of cutting with lasers. Cut off other non-metals. However, when oxygenated, a thin oxide film … 2. These lasers offer a wavelength of 1.064 micrometres and are useful for a huge range of applications, from medical and dentistry to military and manufacturing. It also requires very little maintenance, and should it need replacement parts they are very inexpensive. It has many features when applied in the cutting process. We have covered these in more detail here: You are offered total control of the beam of your laser when you use one of our fiber lasers. With years of manufacturing experience, our experts offer the best solution for all your rapid manufacturing needs. Greater cutting precision and accuracy 2. This preserves the high thermal conductivity of the doped materials. Drilling is another common process that can be used with a fiber laser. With this huge range of types and techniques, it means it has use for a vast range of applications across industries such as aerospace, automotive, electronics, semiconductors and medical, as well as in schools and for hobbyists with things such as art to create interesting and complex shapes. Crystal laser cutting processes can be in nd:YAG (neodymium-doped yttrium aluminium garnet), but more commonly they tend to use nd:YVO (neodymium-doped yttrium ortho-vanadate, YVO4) crystals. Even the wattage of your laser and the local … Each use a different base material to stimulate the laser either electrically with a gas mixture or passed through physical diodes. Using Stencil fonts that have bridges connecting counters to the exterior of the type solves this issue, but the number of Stencil … Each laser offers a continuous wavelength and can serve a range of purposes. Laser cutting is a kind of non-contact machining with high energy and density control. There are different types of laser … It has a wavelength of 10.6 micrometres, and is used in many medical and industrial settings. You can reach the SPI Lasers team here. The highest power CO2 lasers range up to multiple Kilowatts for industrial machines, but these are by far the exception. If you enjoyed reading this article, why not register for future articles? The Nd:YVO4 crystal has been incorporated with high NLO coefficient crystals (LBO, BBO, or KTP) to frequency-shift the output from the near infrared to green, blue, or even UV which gives it a ton of varying functions. These can be used with both metals (coated and non-coated) and non-metals, including plastics. Engraving is very similar to marking, with the difference being that the aim here is to create a deep, engraved mark, often used for applications such as creating barcodes. These include: 1.  There are 3 types of lasers: CO2 (gas lasers), Fiber lasers and Nd:YAG or Nd:YVO (vanadate crystal lasers). The laser cutting box of the CNC laser cutter can be different in types based on the different working principles. As with all laser applications if the fume is not removed at source using LEV (Local Exhaust Ventilation), the fume can blur the laser … Gas laser cutting also uses nitrogen, which works well with metals such as steel and aluminium, although care must be taken to ensure your nitrogen is pure. Part I: Origins and operating of laser cutting Laser cutting is a type of digital manufacturing technique known as “subtractive”. Using a laser cutter for fabric works as a form of digital embroidery. And laser cutting mainly has four different cutting … It has several similarities to the crystal process, in the fact that optical fiber also belongs to the solid state group, and it also has a wavelength of 1.064 micrometres. Crystal laser cutting is a process that uses lasers made from nd:YAG (neodymium-doped yttrium aluminium garnet) and nd:YVO (neodymium-doped yttrium ortho-vanadate). There are three main types of lasers used in laser cutting. It is also useful for working with leather, fabric, wallpaper and similar products. While working with thin materials, fiber lasers are the ideal solution. You get similar results in a lot less time. The type of laser defines what type and thickness of material it can cut through, because different laser types have different power ranges. The biggest drawback to a crystal laser machine is that it is an expensive piece of kit, made up from just as expensive pump diodes. If you think that laser cutting might be the process for you and you want to know more about the fiber laser process specifically, then we would be more than happy to assist you. Fiber Laser cutting equipment can cut stainless steel below 4mm, and can cut up to 8 ~ 10mm thick stainless steel in laser beam if add oxygen. Laser machines can cut wood, paper, plastic, fabric, foam, and much more with such high precision and speed, giving lasers a clear advantage over other types of cutting technologies. Each laser offers a continuous wavelength and can serve a range of purposes. This control allows you to work with a range of materials, as well as ensuring that no damage is caused to the material that you are using. One can enhance the power of the CO2 beam by boosting the oxygen content, however this can be risky in inexperienced hands or with a machine unsuitable for such enhancements. The first type of laser used in cutting sheet metal, the CO 2 laser generates a beam of energy within a mixture of carbon dioxide, helium, and nitrogen gas. CO2 laser Of course, there are two types of YAG and CO2 for laser cutting. Consequently, depending on the various structure of the laser cutting … Laser Settings. Laser cutting does however produce an enormous amount of hazardous contaminants that need to be removed to protect the operator and ensure the quality of cut. Gas laser cutting, most often known as C02 laser cutting, is completed using a carbon dioxide mixed laser. They can manage intensities 100 times higher than that of CO2 lasers with the same amount of average power. Fiber lasers can be in continuous beam, quasi- or offer pulsed settings giving them different functionalities. vast range of applications across industries. Laser fusion cutting involves melting material in a column and using a high … When it comes to continuous operation, Nd:YVO has an overall similar performance level to Nd:YAG in cases with medium or high power. These devices allow an extremely high cutting power. This non-contact process uses a constant beam of light to create heat and pressure which then reshapes/distorts various materials with precision as the cutting head moves over the material surface. This type of laser is capable of cutting thicker materials at higher speeds than other laser types, such as fiber lasers, and produces less of a micro-burr along the cut … The CO2 laser is suited for cutting, boring, and engraving. Most laser cutters prefer soft woods that do not have a distorted, … When you want a laser cutter and engraver that will look right at … When comparing the two Nd:YVO exhibits higher pump absorption and gain, a broader bandwidth, broader wavelength range for pumping, a shorter upperâstate lifetime, a higher refractive index and lower thermal conductivity. Fiber lasers are optimally suited for metal marking by way of annealing, metal engraving and marking thermoplastics. Lower maintenance and repair costs 7. The final type of cutting is with fiber lasers, the process that we use here at SPI with our Continuous Wave Fiber and Pulsed Fiber Lasers. CO2 lasers are generally best for non-metallic materials, although there are certain metals that they can process. There are 3 types of lasers: CO2 (gas lasers), Fiber lasers and Nd:YAG or Nd:YVO (vanadate crystal lasers). Our lasers can work at a range of power outputs and for numerous applications, for more information on which might be the right choice for you please simply contact us here. While leather is obviously one type of textile, … It can generally cut thin sheets aluminum and other non-ferrous metals. Your power, speed and other laser settings are going to vary depending on things such as thickness and the type of wood you are cutting. Failure to do this can cause the metal that you are working with to be oxidised. There are three main types of lasers used for cutting, we have explained these in greater detail below: Gas laser cutting, most often known as C02 laser cutting, is completed using a carbon dioxide mixed laser. Typical machining CO2 lasers are 25 to 100 Watts in power with a wavelength of 10.6 micrometers. Drilling involves the creation of popped holes or dents in a material. Under certain circumstances, it can even process a few ceramics. The best woods for laser cutting are Basswood, White Pine, Alder, Cherry, Oak, Baltic Birch Plywood, Balsa and Cork. Marking is one process that can also be completed with a fiber laser, and involves the melting of a surface layer of a material to leave a mark behind. 3ERP provides one-stop rapid prototyping services & low volume manufacturing services. Also used for boring. Less material contamination and waste 6. Gas laser cutting uses gases such as carbon dioxide or nitrogen. The drawback of these machines is that they can be expensive, not just because of their initial price but also because they have a life expectancy 8,000 to 15,000 hours (with Nd:YVO4 being having a typically lower one) and the pump diodes can net a very hefty price. It uses a large amount of energy generated by a laser, concentrated on a very small area, in order to cut or engrave a material. The neodymium (Nd) laser – used when high energy and low repetition are required. When each block is cut glue up each letter with a water resistant glue as the type … Narrower kerf widths 4. Laser cutting has been around since the 60âs but now itâs as relevant as it has ever been due to its growing usage within industrial processes. Glowforge Plus 3D Laser Printer. The neodymium (Nd) and neodymium yttrium-aluminium-garnet lasers are identical in … In addition to these three primary machine configurations, laser cutting machines come with different types of lasers. The gas mixture is usually carbon dioxide, nitrogen, hydrogen and helium. Fiber laser cutting is done using a laser such as the one above. There are three main Laser Cut types used in laser cutting. These crystals are part of the solid state group, and the crystals allow for extremely high powered cutting. Crystal laser cutting uses crystals made from nd:YAG or nd:YVO. The CO 2 laser is suited for cutting, boring, and engraving. Laser cut each rectangle make sure there is an even space from each base too, I'd advise using the laser line tool to etch where each letter goes as this will help when you are gluing up the type. However, Nd:YVO does not allow for pulse energies as high as Nd:YAG and the laser life lasts for shorter periods. Platform Size – Must be large enough to hold the largest sheets of foam that will be laser processed or be equipped with Class 4 capability and safety precautions for processing larger sheets. Using laser cutting for packaging; Ceramics CNC laser cutting. The biggest benefit that a fiber laser provides is that it has a much longer service life than that of the previous two cutting types, coming in at around 25,000 hours. The neodymium-YAG laser … … Usually, higher power lasers are used on the industrial scale to cut out large sections of sheet metal or plastics, while lower power lasers … The Use of Laser Cutting in Sheet Metal Prototyping Â, Address: GangKou, ZhongShan City, GuangDong Province, China, 3E Rapid Prototyping Ltd 2021 All rights reserved, A Professional Plastic Injection Mold manufacturer for the Best Deal, The best materials for your medical prototypes, Efficient and cost-effective Plastic Injection Molding Services, 5 ways to make your metal parts corrosion resistant, Top 5 Tips to Select a Professional Manufacturing Team for Prototype Molding Services. Generally, the Nd lasers … The three primary types of lasers are the neodymium laser, the neodymium yttrium- aluminum -garnet laser, and the CO 2 laser. Lasers are often described by the kind of lasing medium they use - solid state, gas, excimer, dye, or semiconductor. In those instances, fibre lasers … They are also typically the most expensive of the various laser-cutting devices. The laser beam is focused to form a light spot with high energy density. We mainly talk about CO 2 lasers, fiber lasers and vanadate lasers. This means that you can control the beam heat output, the intensity of the beam on your material, and the duration of your beam. Wavelength – The 10.6 micron wavelength is the best choice for laser cutting … Higher quality edges 3. The kind of material that a laser can cut depends on the type of laser and the specific machine’s power. Fiber lasers are generally maintenance-free and feature a long service life of at least 25,000 laser hours. Each … Laser cutting is one of the most main process to make sheet metal parts. Greater operator safety Laser cutting machines are capable of cutting a wide range of designs with a greater degree of precision and accuracy than more conventional cutting machines. One of the mirrors is fully reflective and the other is partial, letting some of the light through. Laser cutting words with counters makes text less legible. According to the structure of the laser cutting machine, it can be divided into: A, Desktop Laser Cutting Machine This laser cutting machine is the most common. Types of Lasers There are many types of lasers available for research, medical, industrial, and commercial uses. Since laser cutting … It has also been applied to the processing of food such as cheese, chestnuts and various plants. Laser technology was developed in the 1960s. When … A crystal laser machine has a shorter life expectancy than other machines on the market, at around 8,000 to 15,000 hours, meaning it could cost you more over a longer period of time, not to mention if you have to replace the expensive pump diodes should they break. A laser cutter is used to cut a sheet of metal. The tubes contain mirrors on each end. As with any process or type of technology, laser cutting has developed over the years not only as an alternative process to other conventional forms of cutting, but to also include several types and techniques itself. General Foam Laser System Considerations. Crystal laser-based cutting also has roots dating back to 1964, being created in the same laboratories as gas lasers; Bell Labs. A CO2 laser runs electricity through a gas mixture-filled tube, producing light beams. It is made a viable by electrically stimulating said carbon dioxide mixture. We feel that these benefits make it the perfect solution, hence the reason that this is the approach that we take at SPI. One sub-type of fiber laser system is the MOPA, where pulse durations are adjustable. It is made a viable by electrically stimulating said carbon dioxide mixture. The laser technology serves a plethora of functions including cutting, drilling and engraving depending on the strength of the laser, the main component material it uses to produce the laser beam and the material it is acting upon. Smaller HAZ and less material distortion 5. Their general wavelength is 1.064 micrometers, producing an extremely small focal diameter. Types of CNC Laser Cutter. Due to the similar sizes, yttrium, gadolinium or lutetium ions can be replaced with laser-active rare earth ions without strongly affecting the lattice structure needed to produce the beam. Transmitted to the processing of food such as cheese, chestnuts and various.! 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{"url":"https://hobbystrategy.com/11-different-paintball-lenses/","date":"2023-12-02T12:18:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100399.81/warc/CC-MAIN-20231202105028-20231202135028-00101.warc.gz","language_score":0.9034025073051453,"token_count":3422,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__287271284","lang":"en","text":"Paintball lenses are an important aspect of playing paintball, as you should never play without protective gear on your face. There are many different kinds of paintball lenses available, in a wide array of colors and intended uses.\nWhat kinds of different paintball lenses can you get? There are 11 different types of paintball lenses available:\n- Thermal (dual pane) paintball lenses\n- High Definition Reflective (HDR) paintball lenses\n- High Definition paintball lenses\n- Mirrored paintball lenses\n- Amber tinted paintball lenses\n- Smoked paintball lenses\n- Gray tinted paintball lenses\n- Green tinted paintball lenses\n- Yellow tinted paintball lenses\n- Blue tinted paintball lenses\n- Rose tinted paintball lenses\nSo what are the advantages of each of these different kinds of lenses? Read on for an explanation of each paintball lens type and how they can improve your paintball game.\nInfo: There are many different paintball lenses. It is similar to sunglasses. You can get sunglasses where the glass is of a different color. Maybe you just want the ones that you think look nicer, the ones that are better for low sun, better in cloudy weather, and zero glare… Read further to see which is perfect for you.\nPaintball Thermal Lenses\nPaintball thermal lenses (also known as dual-pane lenses) feature two lenses about an eighth of an inch apart and separated with a foam gasket. The outer lens is made to normal specifications for thickness, but the inner layer is thinner and more lightweight.\nThis design greatly reduces fogging while playing and a dual-pane design lasts longer than a single pan lens with anti-fog coating. All different tints of paintball lenses can come with thermal lens technology.\nBecause of their doubled thickness with an air cushion between the two panes of the lens, these paintball mask lenses offer extra protection from eye damage while playing paintball.\nHere are some thermal paintball mask lenses available on Amazon:\n- Invert Helix Thermal Paintball Goggles Mask\n- JT Spectra Thermal Lens\n- Empire EVS Thermal Goggles\n- HK Army Paintball KLR Thermal Anti-fog Mask: My favorite, in red color 🙂\n- JT Elite Thermal Chrome Lens\nHigh Definition Reflective (HDR) Paintball Lenses\nHigh definition reflective paintball lenses reduce sunlight for zero glare while also enhancing color, clarity, and contrast. HDR lenses also offer a distortion-free field of view.\nHDR lenses feature a highly polished mirror finish in an array of chameleon colors that morph with the user’s movements and depending on the light they’re standing in.\nHere are some HDR paintball lenses available on Amazon:\n- VForce GI Sportz Grill HDR Lens\n- GI Sportz VForce Grill HDR Kryptonite Lens\n- VForce Grill Thermal Paintball Mask HDR Metamorph Lens\n- GI Sportz VForce Grill HDR Magneto Lens\nHigh Definition Paintball Lenses\nSimilar to HDR paintball lenses, high definition lenses help correct higher-order aberrations that affect vision based on the individual optical characteristics of a person’s vision that are not necessarily correctable through prescription lenses.\nHigh definition paintball lenses allow for sharper vision in all lighting conditions and typically feature anti-reflective coating to eliminate eye-catching reflections. High definition lenses provide improved contrast sensitivity and are good for low light paintballing conditions.\nHere are some high definition paintball lenses available on Amazon:\n- Dye 13 Replacement Thermal Lens for Paintball Mask – High Definition\n- Dye i5 Paintball Google with High Definition Lens\n- BASE Paintball Google Replacement Lens\n- Dye Special Edition Thermal Lens Paintball Googles\nMirrored Paintball Lenses\nMirror paintball lenses are created via reflective optical coating called mirror or flashing coating. While it gives the user’s vision a uniform brown or gray tint, the color of the flash coating is diverse and is independent of the lens tint.\nMirror coating decreases the amount of light passing through a tinted lens by a further 10-60%. In paintball mirrored lenses are useful in sand, water, snow, higher altitudes, and high glare conditions. Mirrored lenses are a form of one-way mirror.\nModern reflective coatings have several alternating layers of specific thickness and are often created by using dielectric materials and metals. The manufacturing process for mirrored lenses is similar to the process used in manufacturing anti-reflective coating.\nWhile mirrored paintball lenses look extremely cool, they can be a significant disadvantage in play that is geared towards ambush scenarios, as their reflective surfaces can be seen from a long distance off.\nHere are some mirrored paintball lenses available on Amazon:\n- Empire EVS Thermal Goggle Lens – Ninja (Silver Mirror)\n- Tippmann Paintball Valor Goggle Thermal Lens\n- Sly Profit Thermal Goggles – Mirror Purple Gradient\n- VForce Morph/Shield/Profiler Thermal Dual Pane Goggle Lens\nAmber Tinted Paintball Lenses\nAmber tinted paintball lenses block blue light in the spectrum, such as the light found on overcast days (this makes it a good choice for playing paintball in overcast conditions). Amber tinted lenses improve contrast and depth perception while also reducing glare.\nBlue light has a shorter wavelength and is more difficult to focus on than other colors of light, so lenses that block blue light (like amber) are good for avoiding eye fatigue.\nAmber tinted paintball lenses are also considered useful in changeable weather patterns and in general low light conditions. Amber lenses are particularly good for judging distance and highlight the contrast in shades of green.\nHere are some amber tinted paintball lenses available on Amazon:\n- Extreme Rage V2.0/Invert 20/20 Thermal Paintball Lens – Amber Mirror Grad\n- Anon Men’s Helix 2.0 Goggle\n- HK Army Paintball KLR Pure Lens\nSmoked Paintball Lenses\nSmoked paintball lenses reduce\nbrightness and glare in high light scenarios. Smoked paintball lenses have a\nslight gradient on the lens, and a smoked lens may have hints of greyish-purple\nwhen the sun\nSmoked lenses transmit all colors evenly and in paintball applications, they are ideal for open field play on a sunny day.\nHere are some smoked paintball lenses available on Amazon:\n- V-Force Grill Paintball Goggle Lens – Smoke\n- JT Spectra Thermal Paintball Goggle Lens\n- Sly Profit Thermal Lens – Smoke\n- JT Elite Thermal Lens – Smoke\n- Save Phace Thermal Lens – Smoke\n- Dye Invision & 13 Thermal Mask Lens – Smoke\nGray Tinted Paintball Lenses\nGray tinted paintball lenses feature a uniformly gray tint and are good in both sunny and overcast conditions. Gray tinted lenses are popular for people who want a darker tint than amber and are similar to smoked lenses but don’t feature a slight gradient tint.\nGray tinted paintball lenses are good for general outdoor use and provide anti-fatigue properties as well as true color perception, with no visual distortion. A gray tint is especially good for cutting the glare on things that are wet and shining.\nHere are some gray tinted paintball lenses available on Amazon:\n- Dye i5 Paintball Google\n- Virtue VIO Paintball Goggles/Masks – Black Smoke\n- Anyoupin Paintball Mask, Tan with Gray Lens\n- Dye / Proto Switch Goggle Replacement Lens – Dyetanium Mirror\n- JT Flex 8 Goggle, Black/Grey\nGreen Tinted Paintball Lenses\nGreen tinted paintball lenses are good for all outdoor activities, rain or shine, but are somewhat less common in paintball than colors such as yellow or mirrored.\nGreen lenses filter some blue light and intensify visual sharpness.\nGreen tinted lenses both dim glare and brighten shadows, and while they are available as paintball lenses, are more commonly seen in other outdoor sports such as baseball and golf.\nHere are some green tinted paintball lenses available on Amazon:\n- Push Unite Thermal Paintball Goggle Lens – Chrome Green\n- Paintball Mask Thermal Tinted Lens Empire Vents Antifog Replacement Thermal Green Mirror\n- Empire Paintball Mask Lens – Green\nYellow Tinted Paintball Lenses\nYellow tinted paintball lenses improve contrast and preserve sharpness. This high intensity tint works for maximum sight performance and is a popular choice amongst performance field shooters, both on the paintball field and with traditional weapons.\nThese paintball lenses are excellent for night, fog, and overcast conditions and enhances contrast by filtering out blue light. Yellow lenses can cause some color distortion, but it does not usually outweigh their effectiveness in making vision sharper and more effective.\nYellow tinted lenses are also favored by hunters, pilots, and mountain bikers. In paintball, they are good for woodball and monochromatic terrains.\nHere are some yellow tinted paintball lenses available on Amazon:\n- JTUSA Spectra Thermal Paintball Mask Lens\n- Sly Profit Thermal Paintball Lens – Yellow\n- VForce Grill Dual Pane Thermal Paintball Lens – Yellow\n- Dye / Proto Switch Goggle Replacement Lens\n- Virtue VIO Replacement Paintball Goggle Lens\nBlue Tinted Paintball Lenses\nBlue tinted paintball lenses are contrast lenses that reduce glare from visible white light. Blue tinted lenses are especially good for snow play and enhance the contours around objects.\nOn a psychological level, blue lenses can have a calming effect on the eyes similar to rose-tinted lenses, and along with being soothing to the eyes are also considered quite fashionable and cosmetically appealing.\nHere are some blue tinted paintball lenses available on Amazon:\n- Dye Axis Pro Thermal Lens Paintball Goggle – Blue Ice\n- Empire Paintball Mask Lens – Blue\n- Dye Precision I4 Thermal Paintball Goggle – Blue Ice\nRose Tinted Paintball Lenses\nRose tinted paintball lenses help block blue light, offer high contrast, and are generally soothing to the eyes. Rose tinted paintball lenses are recommended for long periods of use and are good for reducing both eyestrain and glare.\nRose lenses make reds redder, blues bluer, whites whiter, and yellows more yellow. Rose tinted lenses do not alter or change colors, but instead make them more intense. In paintball strategy, pink lenses are good for maintaining your footing in uneven terrain.\nBecause looking at things through a pink tint is soothing, pink lenses are also commonly used in color therapy off the paintball field.\n- Dye Paintball i4/i5 Goggle Thermal Replacement Lens\n- Dye i4 Thermal Dyetanium Mirror Goggle Lens – Rose Silver\nDifferent Paintball Lens Combinations\nWhile there are many different kinds of paintball lens types, you can find different desired features bundled into one lens.\nFor example, you can find a thermal (dual pane) lens that is also mirrored or a blue tinted lens that is also high definition. Many manufacturers offer each line of their paintball lenses in a variety of different tints and color options so that you can pick and choose what you like.\nThere are so many combinations you could potentially purchase that it makes sense to do lots of market research before you commit, as some paintball lenses and masks can be quite expensive. You want to be sure what you want before you put any money down.\nThings to ask yourself when you are considering what kind of paintball lens to buy:\n- What are the humidity levels like where I’ll be playing? Will fogging be a potential problem?\n- What colors are most aesthetically pleasing to me?\n- Will I be playing paintball mostly in an open field or in a wooded area?\n- Will I be playing paintball in full sun or in low light conditions?\n- Will I be playing paintball in the snow?\n- How often will I be playing paintball?\n- How much money do I want to invest in this sport?\nBuying Multiple Interchangeable Paintball Lenses\nRather than committing to a single type of paintball lens, many paintball masks are designed for their lenses to be popped out and exchanged with different lenses.\nThis means that you can choose more than one type of paintball lens and change them out depending on the conditions you’re playing in. For example, if you know you will be playing woodsball in shifting light conditions, you might choose a yellow tinted or amber tinted lens.\nBut if you were playing in an open field on a bright sunny day, it would make more sense to choose a smoked colored or gray tinted lens. If you are playing in a snowy field, you would go with a blue lens.\nHow Does Light Affect Paintball Lens Choice?\nDifferent paintball lenses affect the kind of visible light (also known as white light) that makes up the small range of light waves humans are able to see with our naked eyes. When white light is broken out through a prism, it shows the spectrum of light humans are able to see.\nBlues and reds are at each end of the visible spectrum of light, with yellow and green in the middle, the range easiest and most natural for us to process visually.\nBlue spectrum light is important because it negatively impacts human vision. It scatters more easily than other types of visible light, making it more difficult for the eye to focus on. Prolonged exposure to blue diffused light results in eyestrain more quickly than with other light.\nMany paintball lenses that strive to increase eye sharpness (such as yellow tinted paintball lenses) function to reduce blue light in order to subsequently increase visual contrast and reduce eye fatigue.\nDual Pane Lenses Versus Single Pane Lenses\nPaintball lenses come in two thickness types, single pane and dual pane. While dual pane lenses (also known as thermal lenses) are generally preferable, many paintball players instead opt for a single pane lens with an anti-fog coating.\nThe advantage of thermal lenses over a single pane lens is that thermal lenses tend to be constructed better, they last longer, have higher impact resistance, and are less prone to fogging, but single pane lenses are much less expensive, so they are more suitable for casual use.\nIf a thermal pane lens setup is too expensive for someone just starting out with paintball, there is always the option to buy a basic set of gear to learn with and then upgrade to more expensive, powerful gear later once you’ve become more emotionally involved in the sport.\nPurpose of Color Tints and Mirrorized Coatings in Paintball Lenses\nChoosing the paintball lens tint that is right for you comes down to a combination of your personal preferences combined with prioritizing the conditions you want to play paintball in. Every different type of lens offers its own specific benefits and purposes.\nWith performance tints such as yellow and blue, paintball lenses can both offer a strategic advantage through a sharper vision while playing.\nOther lens types, such as mirrored chrome or a metallic chameleon look, give the player high-end aesthetics and a slick look, but may not be as technically effective on the field.\nYou have to consider what looks cool versus what works well. A super-shiny, chameleon chrome paintball lens on your mask might make you look like the best player on the field, but if every player you’re against can see your helmet a mile away, you’ll be an attractive target.\nHow Do You Decide Which Lens Is Right for You?\nWhen first choosing your paintball gear, unless you play in very specific conditions, it’s probably best to go with an all-purpose lens, such as a gray or smoked lens.\nThis will give you a neutral field of vision while you are still learning the game, and these lenses work well in all sorts of field conditions. Once you get more involved in the sport of paintball, you can start looking into fancier options for your gear build. Try to choose goggles or a mask which allows for interchangeable lenses, so you can upgrade later once you’ve gotten more comfortable playing.","domain":"optical_engineering"}
{"url":"https://lommen9.home.xs4all.nl/seriesb/page%202.html","date":"2022-09-26T13:39:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334871.54/warc/CC-MAIN-20220926113251-20220926143251-00398.warc.gz","language_score":0.9237633347511292,"token_count":495,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__147481732","lang":"en","text":"Graflex RB series B\nReflex, Rapid and Revolving...\nThe Graflex Revolving single lens reflex camera for 2 1/4 x 3 1/4 film. Also in 3 1/4 x 4 1/4 and 4x5 \"\nRevolving means: Revolving back. The Film back can be set in Landscape or in Portrait mode.\nMade for sheet film holders and Grafmatic Film Holder.\nThe spring can be wind up from 1 to 6, where 6 is fastest shutter speed, combined with the \"D\" smallest slit.\nA roller blind with 4 different slits combined with a \"6-speed\" roller-mechanism gives the Graflex RB 24 different shutter times and a \"T\" . \"O\"= open. \"T\"= time. A to D 1/10 to 1/1000 sec.\nDiaphragm from 4,5 to 32\nA solid build camera, made in the thirties and forties from the last century .\nThe two pages of the 1914 catalog from GRAFLEX and GRAPHIC Cameras give a good impression of the working of the Graflex Camera. \"Although itís not the same camera as the Graflex RD from the thirties, the working principle is almost the same. The great advantage that a focal plane shutter has over those of the usual type will be instantly appreciated when it is considered that the focal plane shutter permits the lens to work at its entire efficiency during the whole period of exposure. With shutters in between the lens type during only a small fraction of exposure time is the lens working at its full diaphragm opening, the remaining portion of the exposure period being used by the opening and closing of the shutter\". The principle is illustrated in the two diaphragms:\nThe diagram illustrates an exposure with the lens diaphragm set as f 4,5. The upper row of circles shows the exposure with a Focal Plane Shutter where the lens opening remains constant through the entire period of exposure.\nThe lower row of circles illustrates an exposure with a shutter in between the lens. A considerable portion of the exposure is consumed in opening and closing of the shutter allowing the lens to operate at the full diaphragm opening but a small portion of the total period of exposure.\nPage1 Page 3\nMore Graflex cameras\nHome Jo Lommen Cameras","domain":"optical_engineering"}
{"url":"https://www.ttujournalism.net/laser-safety-glasses/","date":"2023-06-04T20:35:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224650264.9/warc/CC-MAIN-20230604193207-20230604223207-00600.warc.gz","language_score":0.9348250031471252,"token_count":943,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__278848123","lang":"en","text":"Laser safety glasses\nDespite the fact that laser safety glasses are designed to block harmful laser light from entering the eye, it is important to keep in mind that they are not effective at blocking all wavelengths of light. The Optical Density of a lens relates directly to the wavelength. When a lens has a high optical density, it will obstruct more wavelengths than a lens with a low density.\nOptical density is also important for medical devices. Generally, a laser protective eyewear filter must be rated to block light at a wavelength of 800 nanometers. This range is used for ultrafast pulses. The range increases as the pulse duration decreases.\nThe International Electrotechnical Commission (IEC) publishes laser safety standards. They include normative guidance for manufacturers and clinicians. They are also harmonized with national standards. In some countries, the IEC standards are mandatory. The IEC also publishes normative guidelines for administrators of laser use facilities.\nThe IEC also publishes recommendations on the use of protective equipment. These include clothing, barriers, and other devices designed to protect the wearer from the harmful effects of lasers. The IEC standards are the basis for medical-legal decisions in cases of accidental or untoward occurrence.\nThere are several types of laser safety glasses. Some are made of polycarbonate. This material absorbs UV and near infrared rays and is lightweight. It is also impact resistant. Some glasses come with microfiber pouches that can be used to clean the eyepiece.\nOther filters are made of glass. They are less technologically advanced but are more affordable. They can be used on mid to high-power density lasers. The glass material is heavier than polycarbonate. However, the optical transmission of a glass filter is better than a polycarbonate filter.\nThe most important thing to remember when using laser safety glasses is to choose the right model. It is important to choose a pair of safety glasses based on the wavelength of the laser and the operating parameters of the laser. If you are not sure of which type of lens is appropriate for your work environment, contact Phillips Safety Products for help.\nthis one blocking glasses\nWhether you’re looking to buy the right glasses for watching TV or playing video games, you’ll find a wide selection of options. Here are a few things to keep in mind when searching for a pair.\nThe best glasses are those that block out more than 99% of blue light. That means you’ll be more comfortable, and you’ll reduce the chances of headaches and achy eyes. You’ll also be less likely to suffer from cataracts or macular degeneration.\nThe most important thing to remember when selecting a pair of glasses is to choose the right ones for your needs. For example, the best glasses for reading a screen are the ones with amber tints. This will cut down on the brightness of the screen and the glare of the LCD lens.\nIf you want to play a fast paced basketball game, you need to train your brain to stay on track. You need to know how to read the court, how to react to the ball, and how to visualize the playing field. Strobe how to do baseball swing training equipment and how to implement it for free help you to push your limits. You can even set the glasses to a dark setting for a longer period of time for a bigger challenge.\nThere are many other strobe light training glasses on the market. You can find a pair in any style or color you want. For example, the Trolls Poppy Glitter Blue Light Blocking Glasses feature a sparkly frame, and the lenses are designed to block out harmful blue light. You can purchase them in non-prescription or prescription varieties.\nThe strobe light is an excellent way to increase your visual performance, as long as you make the proper eyewear choices. With a few simple adjustments, you can enjoy a better viewing experience. This is especially true if you have an eye condition such as myopia, hyperopia, or astigmatism.\nThe most important thing to remember when shopping for strobe light training glasses is to find a pair that blocks out more than 99% of blue light. Strobe Sport claims don’t want to be blinded by the flashy colors of the screen, but you also don’t want to miss out on all the fun.\n2737 E Arizona Biltmore Cir UNIT 28, Phoenix, AZ 85016\nPhone: (707) 878-7623","domain":"optical_engineering"}
{"url":"http://printerspost.com.au/printingnews/5858/kayell-australia-announces-exclusive-distributor-deal-for-sekonic%C2%AE-light-meters-and-pocketwizard%C2%AE-remote-triggers.aspx","date":"2018-12-18T14:15:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829399.59/warc/CC-MAIN-20181218123521-20181218145521-00130.warc.gz","language_score":0.8904018998146057,"token_count":380,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__71707870","lang":"en","text":"Kayell Australia announced today that it is now the exclusive Australian distributor for Sekonic® light meters and PocketWizard® remote triggers.\nKayell Australia Managing Director, Robert Gatto, said the new distribution deal aligns well with Kayell Australia’s wholesale and retail business model which incorporates the sale of premium lighting and lighting accessories.\n“PocketWizard® and Sekonic® are internationally renowned premium brands. Kayell is delighted to now be able to provide retailers with this additional product range,” Mr Gatto said.\n“With Kayell’s commitment to all things lighting related, the new agreement with Sekonic® and PocketWizard® is an ideal synergy.\n“Kayell supports many large brands and is looking forward to providing the same high standard of support and service to customers who purchase Sekonic® and PocketWizard® products,” Mr Gatto added.\nSekonic® Light Meters\nSekonic® Light Meters use advanced exposure systems that carefully pair up the dynamic range of input and output variables when gauging light on subjects or objects. Sekonic® makes tools such as light meters, colour meters and illuminometers to help measure and control light in-camera in order to obtain the perfect exposure.\nUsing a Sekonic® light meter when working with fill-flash makes it simple to measure the amount of flash vs. ambient light in a photographic scene.\nPocketWizard® remote triggers\nPocketWizard® are the industry leaders in the wireless control and sychronisation of cameras, flash lighting and light meters. The PocketWizard® is a wireless radio triggering system for off-camera lighting. It requires a transmitter electrically connected to the camera, usually mounted on the camera’s hot shoe to trigger a remote receiver connected to a remote flash unit via a PC cord.","domain":"optical_engineering"}
{"url":"https://riskracingeurope.com/products/bamff-4-0-400-lumen-dual-led-flashlight","date":"2021-04-21T02:47:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039503725.80/warc/CC-MAIN-20210421004512-20210421034512-00525.warc.gz","language_score":0.836348295211792,"token_count":170,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__74111078","lang":"en","text":"The B.A.M.F.F. or Broad Array Multi-Flood Flashlight combines a powerful LED spot light for long distance visibility with a wide angle flood light for close range area lighting. These two CREE LEDs can be used simultaneously with the B.A.M.F.F. increasing your overall visibility.\n400 lumen total light ouput\nDual CREE LEDs - long distance spot light + area lighting flood light\n6 Modes including strobe and SOS\nTactical grip with tap to change tail switch\nPowered by 3xAAA batteries or 1x18650 rechargeable battery - not included\nBludgeon head for emergency situations\nIncluded (1) B.A.M.F.F. 4.0 Dual LED Tactical Flashlight (1) AAA battery carrier Lanyard","domain":"optical_engineering"}
{"url":"https://nyqey.ampoule-box.de/en/mmts","date":"2022-12-03T06:05:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710924.83/warc/CC-MAIN-20221203043643-20221203073643-00808.warc.gz","language_score":0.8033922910690308,"token_count":220,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__283441847","lang":"en","text":"Web. Web. Web.\nWeb. Jul 05, 2020 · Download 1. Download 1 MS. AGRICULTURE FORM 1. Download 1. Download 1 MS. FORM 2 EXAMS AND MARKING SCHEMES. MATHEMATICS FORM 2. Download 1. Download 1 MS.. A ray of light enters the optical fiber at P and emerges from Q. (i) Sketch the path of the ray through the fiber. (ii) State the reason why light travels through the fiber as in (i) above. 2m 33s 23. Figure 3 shows a ray of light passing into a glass prism ABC.. Exam Year: 2008 Physics Form 3 Answer all the questions. 1. Identify the properties of light exhibited by each of the following a. Formation of umbra shadow (1mk) b. Formation of mirage (1mk) c. Formation of rainbow (2mks) 2. Explain each of the following terms (10mks) i. Absolute refractive index ii. High optical density iii. Refraction of light.","domain":"optical_engineering"}
{"url":"https://katrinakellyjewelry.com/nova-scotia/bosch-gll-2-15-manual.php","date":"2020-03-30T13:19:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370497042.33/warc/CC-MAIN-20200330120036-20200330150036-00300.warc.gz","language_score":0.7668638229370117,"token_count":1351,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__183498447","lang":"en","text":"GLL 5-40 E Professional , Line Laser Bosch\nGLL 2-15 Professional , Line Laser Bosch. The Bosch GLL2 Self-Leveling Cross-Line Laser lets you easily keep your projects straight and Model #GLL 2 Format 30' GLL2-15 Self-Leveling Cross-Line, Read and download Bosch Laser Level GLL2-50 User's Manual online. Download free Bosch user manuals, owners manuals, instructions, ….\nBosch GLL 2-15 Professional Line Laser + BM3 Wall\nGLL 2-15 Professional , Line Laser Bosch. Magazine şi preţuri - Telemetre, nivele optice Bosch GLL 2-15 de la 655,27 RON!: (GLL 2 15) Producator: Bosch Model: GLL 2-15 Descriere Bosch GLL 2-15 linile laser, The Bosch GLL 2-15 Self-Leveling Cross-Line Laser is a compact and high-performance leveling and alignment solution for professionals. Featuring highly ….\nfor your professional Bosch tool. Download the user manual for the GCL 2-15 Professional Download the product data sheet for the GCL 2-15 Professional… Bosch Line Lasers Layout Levels Manual fine adjustment for one time setup and convenient viewing of laser point on the GLL 2-15 Self-leveling Cross-line Laser\nBosch GLL 3-15 Self-Leveling Three-Line Laser. Bright laser lines can be used in self-leveling mode or locked in manual mode for sloped applications. GLL 2-20 Amazon.com: Bosch GLL 3X Professional Cross Line Laser level with 3 lines by Bosch Professional: Home Improvement\n2014-12-31 · The Bosch Power Tools GLL 2-15 Self-Leveling Cross-Line Laser is a compact and high-performance leveling and alignment solution for professionals. Find helpful customer reviews and review ratings for Bosch GLL 2-15 Self-Leveling Cross-Line Laser Kit- Discontinued by Manufacturer at …\nBosch GLL 2-15 Self-Leveling laser level should be the first choice if you want to buy a high quality laser level in an affordable price. Bosch GLL 3-15 Self-Leveling Three-Line Laser. Bright laser lines can be used in self-leveling mode or locked in manual mode for sloped applications. GLL 2-20\nKreuzlinienlaser Bosch GLL 2-15 Professional LAYER\nNew Bosch GLL 2-15 Compact Cross-Line Laser Level. ... The Bosch GLL 2-50 offers the GLL 3-50 offers manual fine adjustment for one time setup and Bosch GLL 2-15 Self-Leveling Cross-Line Laser Kit, Las Vegas, November 11, 2013 – Bosch Measuring Tools continues to showcase its innovation in the expanding line laser category with the debut of the new GLL 2-15, a.\nGLL 2-45 Self-Leveling Cross Line Laser Level Bosch. Amazon.co.uk: gll 2-15. The Bosch GLL 2-15 Cross Line Laser is small, lightweight and always Bosch Cross Line Laser with Tripod GLL 2-15BS by Bosch. by Bosch., GLL 2-15 The compact cross line laser for professionals.\nAmazon.co.uk: gll 2-15\nBosch Power Tools GLL2-15 Self-Leveling Cross-Line Laser. Line Laser GLL 3-15 X Professional. Line Laser. Bosch GLL 2-10 Professional. Easy to use, Bosch GLL 2-10 Professional: User Manual (PDF 29.5 MB) 2014-12-11 · bosch gll 2 15 nivel laser. bosch gll 2 15 nivel laser. skip navigation nivel a laser dewalt vs bosch (dw088 vs gll 2-15) qual escolher? - duration: 9:45..\nThe new Bosch GLL 30 Self-Leveling Cross Line Laser features 5/16\" accuracy at its 30-foot It’s strikingly similar to the GLL 2 at Manual mode for BOSCH GLL 2 SELF-LEVELING CROSS-LINE LASER LEVEL WITH Bosch GLL 2-15 Self-Leveling Cross-Line Laser horizontal/vertical combination and lock/manual …\nLaser Level Site is your home for the most up-to-date laser level reviews and product Bosch GLL 2-15. Hilti PM Bosch GLL 55 Cross-Line Laser Level Review; Bosch GLL 2-20 360-Degree Self-Leveling Line Bosch GLL 2-20 360-Degree Self-Leveling Line and Cross Laser horizontal/vertical together and lock/manual\nLine Laser GLL 2-80 P Professional. 15 m Accuracy ± 0 Bosch GLL 3 X Professional: User Manual (PDF 10.4 MB) Go to top of page. Bosch GLL 2-15 BM3 CC Laser Level Kit Details: The Bosch GLL 2-15 cross line laser level is extremely compact and easy to use with a fantastic 15m working range.\nGLL 5-40 E No More Shaking - Bosch Electronic Line Laser Level. 2 Working range: 15 m Working Bosch GLL 5-40 E Professional: User Manual 2014-02-14 · kreuzlinienlaser_bosch_gll_215_professional Bosch GLL 2-15 Professional - LAYER-Grosshandel LAYERGrosshandel. Bosch GLL 2-15 …\nFind helpful customer reviews and review ratings for Bosch GLL 2-15 Self-Leveling Cross-Line Laser Kit- Discontinued by Manufacturer at … Buy Bosch GLL 2-15 Line laser professional online and get it delivered today while you pay on delivery of pick in-store in any of our outlets\nCategories: Nova Scotia\nAll Categories Cities: Karabar Rosehill Woolner Stafford Heights Kenton Valley Herdsmans Cove Bringalbert Ora Banda Dundee Rocky Mountain House Kelowna The Pas Eel River Crossing St. Anthony Fort Liard Westville Taloyoak Kars Malpeque Bay Coteau-du-Lac Gainsborough Robinson","domain":"optical_engineering"}
{"url":"https://www.flatoutsurveying.com.au/what-types-of-drone-mapping-are-there-footscray.php","date":"2024-04-19T12:31:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817398.21/warc/CC-MAIN-20240419110125-20240419140125-00665.warc.gz","language_score":0.9233381152153015,"token_count":392,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__165794014","lang":"en","text":"What Types of Drone Mapping Are There?, Footscray\nFlat Out Surveying Pty Ltd, a reputable surveying company, harnesses the power of drone mapping across these types to provide clients with unparalleled results. In this article, we'll delve into the different types of drone mapping and their significance in various industries.\nPhotogrammetry and LiDAR Mapping\nPhotogrammetry mapping is perhaps the most common type of drone mapping. It involves the use of high-resolution cameras on drones to capture a series of overlapping images from multiple angles. These images are then processed using specialized software to create accurate 2D maps, 3D models, and orthophotos. LiDAR (Light Detection and Ranging) mapping relies on laser technology to measure distances accurately. Drones equipped with LiDAR sensors emit laser pulses towards the ground and record the time it takes for them to bounce back. This data is then transformed into detailed 3D point clouds. In the realm of surveying and mapping, the sky is no longer the limit, thanks to the remarkable advancements in drone technology. Drone mapping, a game-changer in the industry, offers various types and applications that cater to diverse needs.\nThermal mapping, often employed in tandem with other mapping techniques, uses infrared cameras to capture temperature variations on the ground. It's particularly useful in identifying anomalies, such as overheating equipment or water leaks. Flat Out Surveying Pty Ltd recognizes the versatility and potential of various drone mapping types. Each type offers unique capabilities, catering to a wide range of applications across industries. Whether it's capturing precise 2D maps, creating detailed 3D models, or assessing temperature variations, drone mapping continues to redefine the way we collect and analyze geospatial data. As technology continues to advance, drone mapping is poised to play an even more significant role in shaping the future of surveying and mapping across the globe.","domain":"optical_engineering"}
{"url":"https://www.fangqitex.com/news/industry-news/introduction-to-the-use-principle-and-materials-of-reflective-vest-vest.html","date":"2023-02-02T17:27:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500035.14/warc/CC-MAIN-20230202165041-20230202195041-00738.warc.gz","language_score":0.9208303689956665,"token_count":382,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__273661254","lang":"en","text":"Reflective vest is a kind of clothing with reflective strips made of reflective materials. Its types include reflective vest, reflective one-piece work clothes, reflective vest, etc. All kinds of reflective vest require certain basic characteristics when designing.\nThe reflective part of the reflective vest is made by using the principle of crystal lattice microrhombus to produce refraction and glass bead retro-reflection with high refractive index, through the advanced technology of focusing and post-processing. It can reflect the distant direct light back to the luminous place, and has good retro-reflection optical performance no matter in the day or night. Especially at night, it can play the same high visibility as during the day.\nThe safety clothing made of this high-visibility reflective material can be easily found by night drivers whether the wearer is in a remote place or under the interference of light or scattered light. The emergence of reflective materials has successfully solved the problem of \"seeing\" and \"being seen\" in driving at night.\nThere are three types of reflective materials used in reflective vest/vest, which are:\n1) Base material: refers to colored fluorescent material with high visibility, but it is not required to meet the requirements for retro-reflectivity;\n2) Retroreflective material: refers to the material with retroreflective property, but it is not required to meet the requirements for the base material;\n3) Dual-functional material: refers to the material with dual properties of substrate and retro-reflection.\nReflective vests/vests are often used by traffic police, sanitation workers, traffic commanders, and some road maintenance personnel. It is mainly for staff who need to use light as a warning in dark light. The life jackets, life buoys and so on we see will have a reflective effect in order to play the role of safety warning.","domain":"optical_engineering"}
{"url":"https://gersolesig.mystrikingly.com/blog/world-s-first-ar-contact-lenses-created-by-silicon-valley-based-startup","date":"2023-02-04T22:01:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500154.33/warc/CC-MAIN-20230204205328-20230204235328-00363.warc.gz","language_score":0.9306315183639526,"token_count":1229,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__140385597","lang":"en","text":"World’s First AR Contact Lenses Created By Silicon Valley Based Startup\nBut the point was made. ... The startup named the lenses Mojo because it wants to build ... people in Silicon Valley venture-capital circles are betting it'll all work. ... based Mojo has kept its plans for an AR contact lens under wraps for ... Valley veterans who share a deep interest in eye-based techand.... A new Silicon Valley startup is trying to build the world's first true smart contact lens, putting a screen right against your eye that can enhance your vision of the world.. MojoVision unveil the world's first augmented reality contact lens ... Spies want smart contact lenses, like this one that was developed recently, ... Now though a Silicon Valley start-up has demo'd a prototype augmented reality.... Elevate your vision. Meet Mojo Lens, the world's first smart contact lens that gives you insight and information without getting in the way.. The startup revealed a prototype of its signature smart contact lens product at ... that product (Mojo Lens) was announced to the world for the first time. ... been researching and developing these AR-based smart contact lenses for ... and its leadership team includes veterans from across Silicon Valley who've.... Startup Mojo Vision unveils working prototypes of AR contact lenses. ... get people's eyes off their phones and back onto the world around them. The first application, says Steve Sinclair, senior vice president of product and ... pulled in US $105 million in investment from traditional Silicon Valley venture firms...\nA California-based company called Mojo Vision is working on smart contact lenses that'll ... that it's building the world's first true smart contact lens, called the Mojo Lens. ... A startup created smart contact lenses that essentially work like smart glasses, ... We've heard about smart contact lenses before, but one Silicon Valley.... One of the biggest challenges for AR headsets like Microsoft's HoloLens ... information on the real world, you could just wear contact lenses? That's what Silicon Valley startup Mojo Vision is aiming to let you do, ... Magic Leap, founded in 2011, released its first developer headset, the ... Location Based Ads.. World's First AR Contact Lenses Created By Silicon Valley Based Startupojo Vision, a startup primarily based in Silicon Valley, has created the.... On January 15th 2020, Mojo Vision unveiled the world's first smart contact ... Mojo lens will eventually be developed with augmented reality possibilities for ... team behind the Mojo smart lens consists of some of Silicon Valley's most ... Philips Healthcare, and Zeiss Ophthalmology.4 To date, the start-up has.... The well-funded startup is working with the FDA to approve the product for medical use ... Contact lenses have been mentioned in that same conversation for ... California-based Mojo Vision has been working on the breakthrough for a ... First, most of the work is still being done off-device at the moment,.... A Silicon Valley start-up has created augmented reality contact lenses that can display a ... The Mojo Vision contact lens offers a display with information and ... Sinclair, senior vice president of the startup based in Saratoga, California. ... Twitter uses deepfake alert for the first time on video shared by Trump.. Augmented reality (AR) is an interactive experience of a real-world environment where the ... In Virtual Reality (VR), the users' perception of reality is completely based on virtual ... to augmented reality, heads-up displays were first developed for pilots in the ... Contact lenses that display AR imaging are in development.. On Thursday, the startup Mojo Vision announced it was building the \"world's first true smart contact lens,\" which features a 0.018 inch-microLED display on the surface you can wear directly over your eye. Before the announcement, the company demoed the prototypes to journalists at CES.. We've heard about smart contact lenses before, but one Silicon Valley company ... On Thursday, the startup Mojo Vision announced it was building the \"world's first true smart ... California, has developed a contact lens with augmented reality capabilities. ... A Kansas City-based tech startup has scored a partnership with LG.... A new start up company, based in Silicon Valley and is called Mojo Vision, has created the world's first AR contact lenses that will give the user.... Mojo Vision, a startup based in Silicon Valley, has created the world's first AR contact lenses. These lenses will provide the users with one of a.... Mojo Vision, a Silicon Valley-based startup, announced last week that it is ... The company describes Mojo Lens as a contact lens with a built-in ... of an augmented reality (AR) smart contact lens dating back over 10 years. ... The Mojo Lens is the first step in delivering Invisible Computing to the world.. AR Contact Lenses Created by Silicon Valley Based Startup. Mojo Vision has created the world's first AR contact lenses, which are design to provide a user with.... Silicon Valley start-up Mojo Vision is developing contact lenses that allow their ... When the latest technology in the world was presented earlier this month at the Las ... of looking through contact lenses that incorporate augmented reality ... At first glance, Mojo Vision's lenses don't look particularly different to...\nRetrowave 2 WAV MIDI\nAlejandro Sanz Ft. Joan Oneil Nuestro Amor Sera Leyenda OfficialRemix\nSto lat! Sto lat! Dla Active Directory ;)\ncsr racing 2 hack no verification csr racing 2 hack mac MacOSX\nPHANTOM FORCES WORKING HACK WALLHACK FLY AIMBOT ANTIBAN MacOSX\nHow to create a Contact Group in Outlook and send email in bulk\nWhat to expect from Apples Its Show Time event on Monday\nFxSound Enhancer 13.028 Crack Full\nClaw: A Documentary | WIGS Unscripted[Video]\nLumion 10.2 Pro Crack + Keygen Download 2020 [Verified]","domain":"optical_engineering"}
{"url":"https://gearspie.com/best-night-vision-scope-for-the-money/","date":"2022-05-28T19:00:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663019783.90/warc/CC-MAIN-20220528185151-20220528215151-00179.warc.gz","language_score":0.897774338722229,"token_count":5223,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__269397774","lang":"en","text":"Have you ever located a target or gone hunting at night? I am sure if you are a hunter or military personnel, this is not a new aspect to you. To get the best shot and acquire your target, having the best night vision scope for the money that cater for your needs is important. Night vision scopes provide the needed accuracy and efficiency in low light conditions.\nNight scopes come in all varieties, but choosing the best one becomes a little tricky. That is why I am going to take you through the top rated night vision scopes reviews. I have highlighted only the top 10 scopes that you can rely on for the best hunting and target acquisition at night.\n- Top 10 Best Night Vision Scope For The Money – Comparison Table\n- Top 10 Reviews of Night Vision Scope For The Money\n- 01: ATN X-Sight II 5-20x/85mm Smart Day and Night Rifle Scope\n- 02: Sightmark Photon XT 4.6x24S Digital Night Vision Rifle Scope\n- 03: ATN Thor HD 384 Smart Thermal Rifle Scope\n- 04: Firefield FF16001 NVRS 3x 42mm Gen 1 Night Vision Rifle Scope\n- 05: ATN X-Sight II 3-14x/50mm Smart Day and Night Rifle Scope\n- 06: Armasight Orion 5x Gen 1+ Night Vision Rifle Scope\n- 07: ATN X-Sight 5-18 Smart Rifle Scope\n- 08: Armasight Vampire 3x Night Vision Rifle Scope\n- 09: Binoculars 6×24 Tsumbay Waterproof HD Telescope\n- 10: Xgen 2.1x Digital Night Vision Viewer\n- Buying Guide of Night Vision Scope For The Money\nTop 10 Best Night Vision Scope For The Money – Comparison Table\n|ATN X-Sight II Smart Day & Night Rifle Scope||CHECK ON AMAZON|\n|Sightmark Photon XT Digital Night Vision Rifle Scope||CHECK ON AMAZON|\n|ATN Thor HD 384 Smart Rifle Scope||CHECK ON AMAZON|\n|Firefield Gen 1 Night Vision Scope||CHECK ON AMAZON|\n|ATN X-Sight II 3 Smart Day & Night Rifle Scope||CHECK ON AMAZON|\n|Armarsight Orion 5x Gen 1+||CHECK ON AMAZON|\n|ATN X-Sight 5-18 Smart Rifle Scope||CHECK ON AMAZON|\nmulti-coated glass lenses\nmulti-coated glass lenses\n|Armasight Vampire 3x Night Vision Rifle Scope||CHECK ON AMAZON|\nWith range finding function\nWith range finding function\n|Binoculars 6×24 Tsumbay Waterproof HD Telescope||CHECK ON AMAZON|\nEnjoy pre-programmed settings\nEnjoy pre-programmed settings\n|Xgen 2.1x Digital Night Vision Viewer||CHECK ON AMAZON|\nYou May Also Check!\nTop 10 Reviews of Night Vision Scope For The Money\nThis guide will help you in finding best night vision rifle scope for hunting or shooting at night. Whether you want true third generation scopes or basic first generation scopes, we have got you covered. These scopes have all the aspects that you can find in a standard night vision scope.\n01: ATN X-Sight II 5-20x/85mm Smart Day and Night Rifle Scope\nWhen looking for a solid scope that has high-tech features, the ATN X-Sight 11 5-20x will be the best selection. The rifle scope comes with inbuilt features that make it easier to view with at night. The accessories available on this scope will provide you with the best hunting or shooting experience.\nThe model has an option of 7 choices of reticles for a different application. This set it apart from other night vision riflescope. It becomes even easier to acquire your target with its multiple features that work simultaneously to provide you with the best shot.\nHere is an insight on the various features and benefits.\n- Use Day & Night in HD resolution - our HD technology gives...\n- Zero range: 100 yard. Day & Night Vision in Millions of...\n- Ballistic Calculator - shifts Point of Impact on the fly...\nBuilt-in Smart Rangefinder\nWith a smart rangefinder, you are able to identify your target with only two clicks. From there you are able to adjust the point of impact once the distance is automatically set with ease. This simplifies your life in that you don’t need to carry handheld rangefinders. The feature also enhances your accuracy level.\nWith this calculator, you are just required to enter environmental data and the rest calculation are done automatically. That means you are able to easily calculate the precise ballistics for angled and long-range shots, with the use of the ballistic calculator. Therefore, there will be no need of complex charts and reticles.\n1080P HD Video and Image Output, Recoil Activated Video\nThis feature enables you not to miss any moment you took your best shot. With HD recording video capabilities, all this is captured once you have activated the recoil activated video. From the moment you viewed your target to the moment you pulled the trigger, all this is captured and saved to the SD card.\nWhen it comes to high tech features, the ATN X-Sight II stand out from the rest night vision scopes. This scope does most of the job for you with its multiple features. All you have to do is make the shot. That is why when it comes to simplicity and versatility the ATN is the best choice.\n02: Sightmark Photon XT 4.6x24S Digital Night Vision Rifle Scope\nThe Sightmark Photon scope is an advanced first-generation scope which is durable and lightweight compared to other scopes. It provides great performance when it comes to its multiple reticles and long battery life. The scope has a large- gathering objective lens to use the available light. When in need of more light, the IR illuminator lights to provide you with a clear view of the object being targeted.\nLet’s have a look on features of this scope.\n- The extremely versatile Sightmark Photon XT 4.6x42 delivers...\n- 33% longer battery life\n- 30% lighter weight than other digital night vision...\n6 Red/Green/White Digital Reticles\nThis scope has different reticles of various colors that perform various functions. This includes two crossbow reticles designed for various crossbows such as the 320,370 and 400 fps. There is a mil-dot reticle which is suitable for range finding and holdovers. It also has two duplex reticles used for varmint and hog hunting and a german style reticle. This means the scope has different reticles for different purposes giving you maximum benefit when it comes to versatility.\nHigher Magnification of 4.6x\nThis magnification allows you to get a better closer view of the target. This implies that you are able to get the best shot without losing your target position. It works together with the large objective lens of 42mm in order to get a detailed view of the object up to 120 yards.\nVideo Recording Feature\nThe scope has an additional video recording feature to capture the best shot taken while hunting at night or shooting on a target. You are able to get maximum experience of the events while watching these videos on your devices.\nIf you looking for a scope that provides you with different reticles for various purposes then this is the right scope for you. With a higher magnification and large optical lens, the scope enhances long eye relief. This scope ensures that you get enhanced precision due to elevation adjustment and utilization of digital windage system.\n03: ATN Thor HD 384 Smart Thermal Rifle Scope\nThis ATN Thor thermal rifle scope enables you to detect hogs and predators at the cover of the night. This is because the scope uses the thermal vision scope, which easily detects their heat signature since these varmints are mostly active at night. Even if these varmints are hiding behind a bush, this scope is able to penetrate through and find them.\nLet’s break down the features of this scope.\n- Excellent Image Performance with 384x288 Sensor - it is the...\n- Ballistic Calculator - the system allows you to calculate...\n- Build-in Smart Rangefinder - will make your life easier than...\nThermal Vision Capability\nThe scope takes advantage of the excellent image performance of the 384×288 sensor for hunting at night. The reason for this is that, the thermal scope easily identifies the prey in a cover of the night, during light fog or rain or when prey hides behind grass or bush. This extends your hunting capabilities to another level, making you the ultimate predator.\nIn order to calculate the bullet trajectory, the ballistic calculator makes the necessary calculations enabling you to hit the prey. With this calculator, all you have to do is feed the system with raw data and it does the rest for you. This makes it easier and more efficient while you are out hunting or shooting at night.\nThis scope has step zoom systems to keep intact what is in the field of view. When you adjust to the right magnification, it is easy to get up close and personal with the object when using this feature. This makes it easier to have control of your target.\nThis is the best night vision rifle scope for hunting hogs and predators at night. The thermal vision scope can easily find such prey at night. The scope identifies their heat signature and from there the built-in rangefinder helps you to acquire the target. The multiple features it has make it ideal for those who like hunting at night and capturing the moment in HD quality.\n04: Firefield FF16001 NVRS 3x 42mm Gen 1 Night Vision Rifle Scope\nThe Firefield Gen 1 Night Vision Scope is best suited for almost every use with its 3x magnification. The scope features a built-in infrared light, 42mm lens with a lightweight titanium body. These features enable you to hit a particular target in the darkest of nights.\nThese are features that it holds.\n- High quality image and resolution\n- Lightweight and durable titanium body with water resistant...\n- Quick detach weaver mount\nBuilt-in IR illuminator\nThe scope is designed with a high built-in power IR illuminator for image enhancement. This illuminator also serves well in darkness to increase your viewing range. With the illuminator, you are able to get the image details of your prey.\nLightweight Titanium Body and Flip-Up Lens Cover\nThe scope has a rock solid titanium body to ensure the lifeline of this scope is long. It also has a flip-up lens cover that protects the scope from any impact or in harsh weather conditions. When the flip-up lens cover is lifted, it reveals an illuminated red duplex reticle. The reticle together with the incremental brightness adjustment enhances the adaptability of the shooter to the surrounding environment.\nQuick-Detach Weaver Mounting System\nThis system enables you to switch between different optics and even change to iron sights. With a return-to-zero reliability, you can’t lose your focus even after switching to a different optic. This implies you are still able to maintain the position of your image giving you the needed convenience.\n42 Lens mm Objective Lens\nThe large objective lens of 42mm enhances light gathering capabilities providing clarity on the image. This also enables the shooter to take out targets in the medium to long range area when you adjust to the 3x magnification.\nThis scope has versatile features for the best experience while hunting at night. It has a powerful magnification of 3x and large objective lens to provide you with a target range that is suitable for shooting or hunting. The built-in power illuminator improves the image clarity and provides a good viewing range. In as far durability and enhanced performance is concerned this is the right mid-price rifle scope.\n05: ATN X-Sight II 3-14x/50mm Smart Day and Night Rifle Scope\nThe ATN X-Sight II 3-14x digital scope has distinct night vision capability due to the utilization of its high-resolution sensor. This scope utilizes the obsidian II core to perform a number of activities making this scope to be largely conversant with the latest technology.\nIt has HD resolution system to provide high-quality images and videos of the prey or target in a field of view. This scope also incorporates smart shooting solution to range your target. These are some of the featured attributes.\n- Use Day & Night in HD resolution - our HD technology gives...\n- Day & Night Vision in Millions of Colors - best hunting...\n- Ballistic Calculator - shifts Point of Impact on the fly...\nIn order to effectively spot your game, the scope comes with a built-in gyroscope. The gyroscope is responsible for image stabilization by steading your view to avoid any distortion. This ensures that you don’t lose the image of your target in the process you get blur-free images.\nThe rangefinder enables you to calculate the distance between the object and what you are viewing. Just turn through the wind, adjust the incline angle and you will get a perfect shot instantaneously once the point of impact has shifted. This allows you to easily hit your prey without having to perform complex calculations.\nFor an easier application of this scope, just set up a profile in the system menu. This involves recording and saving ballistic and other data in the profile manager. This means you don’t need to reset everything when you change the rifle you want to use on this scope. All the data concerning a particular rifle is saved and secured for future application.\nWhen it comes to high-resolution sensors and high-quality images and videos, this night vision scope tops all the other scopes. It is able to deliver enhanced accuracy and performance with its high tech features. The scope effectively works during the day and night without any hitches using the day and night mode. It means you don’t have to enjoy hunting or shooting experience on half a day but 24 hours.\n06: Armasight Orion 5x Gen 1+ Night Vision Rifle Scope\nThe Armasight Orion 5x Gen 1+ is the best night vision scope for the money under $1,000. The scope provides the needed precision for shooting during the darkest nights. The scope offers you high accuracy while shooting or hunting by utilizing cost-effective technology compared to other scopes.\nThe scope is of a mid-range magnification of 5x which serves well while out hunting or for tactical operations in the military. The scope will easily mount on any scope due to its standard Weaver-style rail. Below are the product’s features.\n- Powerful 5x magnification\n- Mounts to standard weaver rail\n- Detachable IR810 infrared illuminator\nDetachable IR-810 Infrared illuminator\nThis scope comes with a detachable infrared illuminator which lights up in the darkest nights. It enables to get a clear view of your prey or target. With its excellent observation acquisition of target, you are able to get a clean shot once the illumination is on.\nPowerful 5x Magnification\nThe powerful magnification power of this scope ensures that you attain high accuracy when it comes to target acquisition. You can acquire precision while using the top wheel focus and magnification. This improves your aiming capabilities on game shooting or tactical operations performed by the military.\nRubberized Body and Water-Resistant Design\nThe scope houses the optics and image intensifiers in a rubberized, ruggedly designed aluminum body. It makes the scope to remain intact on impact or when there are shocks. Its water-resistant design ensures that your lens remains dry even in uncomfortable weather conditions like rain.\nThe powerful magnification makes this scope to be appealing to hunters, shooters and security personnel. It is also preferred to other scopes due to its rubberized body which provides better grip. When looking for a cheaper night rifle scope that has high-performance then this is the scope for you.\n07: ATN X-Sight 5-18 Smart Rifle Scope\nThe ATN X-Sight 5-18X rifle scope is a multifunctional night vision with useful features. The scope features HD video recording capability, Wi-Fi module, and e-compass. It offers incredible flexibility by using the electronic zoom systems. This means while on a field you are able to acquire greater efficiency compared to the use of other scopes.\nIn order to get more information on this scope below are some of its features.\n- Wi-Fi, GPS, Geotag, E-Compass, Velocity, Altitude, Record...\n- Capable of recording and outputting an image 1080p full HD...\n- Unlike traditional optical systems our electronic zoom...\nThis e-compass uses a 3D magnetometer sensor which enables continuous tracking of your direction. This feature comes in handy while you are tracking a buck. You are able to get the precise direction for getting a clean shot of the buck.\nDay and Night Mode\nWith the day and night feature, you are able to use the scope during the day and night by utilizing the smart optics technology. You are also able to get high-quality images, particularly while in night vision which is in HD aspect.\nThis is a new feature when it comes to this ATN scope. The scope ability to be water resistant makes it suitable for any weather conditions. This implies you don’t have to worry when you caught up in the rain while hunting.\nThis feature allows you to connect wirelessly your devices to the scope. This enables you to instantly use your mobile device as a viewfinder, upgrade the scope firmware and even live stream the videos captured.\nThis scope incorporates the smart optics technology to enable proper functioning of this scope at night or during the day. With other multiple features, this scope for is the best for any professional work hence look no more than the ATN X-Sight 5-18 night vision scope.\n08: Armasight Vampire 3x Night Vision Rifle Scope\nThe Armasight Vampire 3x Night Vision Scope features the proprietary Ceramic Optical Ruggedized Engine (CORE) image tube. This feature provides great benefits when it comes to resolution, clarity of images and photocathode sensitivity. This scope is also made from high quality with resistance to dust, water, and sand. This showcases the efficiency provided by this scope.\nTo get the detailed application of this scope let’s have a look at the features.\n- Notice: By purchasing the FLIR PVS-7 the buyer acknowledges...\n- Product cannot be exported, re-exported, resold, transferred...\n- Diversion contrary to U. S. law is prohibited\nProprietary Ceramic Optical Ruggedized Engine(CORE) Image Tube\nThe scope is specifically designed with CORE image tubes. These tubes provide clearer images while using night vision. The high-quality images provided rivals that of Gen 2 high-end image tubes even in low light conditions. This shows the superiority of the scope in terms of clarity of night vision images compared to other scopes.\nTactical Rails and Adjustable Reticles\nThese rails are responsible for attachment of lasers and detachable long-range infrared illuminator. This makes mounting of the scope easier on a rifle by using the quick release mount feature. In order to make the precise shot, this scope has manually-adjustable reticle and also illuminated reticles to adjust brightness levels.\nWater and Fog Resistant Design\nTo increase the scope reliability, the scope features great resistance to water, fog, and dust. It also features a body made of solid to provide further protection to the scope. This implies that this scope is able to stand any weather conditions or any impact brought on its way.\nThe scope features CORE image tubes for better clarity on images compared to high-end Gen 2 image tubes. This makes the scope to be at the top when it comes to high-quality images. That is why the scope is ideal for predator hunter and those looking for lightweight night vision rifle scope.\n09: Binoculars 6×24 Tsumbay Waterproof HD Telescope\nThe binoculars 6×24 Tsumbay Waterproof Telescope has a number of features that make it ideal to fall under the category of night vision scopes. The binocular have a compact design making it easier to travel around with and also serves as a gift choice for others.\nTo understand why these binocular made it to the top ten, let’s check the features.\n- Great Magnification: This outdoor binoculars use BAK-4...\n- Compact Adjustable and Folding Binoculars: The binoculars...\n- Elegant and Luxurious Carring Bag:This Portable binoculars...\nBAK-4 Prisms and Multi-Coated Optic Prisms\nThe scope is able to give out a good image when the BAK4 prism reflects light using the multi-coated lens. The performance is also good in low light conditions even if the field of view ranges from 400-1000m.You can also easily calculate the distance between you and the target by using the mil-dot reticle found in the eyepiece.\nThis binocular has an abrasion-resistant finish which is rubberized. It also has water-resistant lens to cater for all weather conditions.\nFor the best viewing experience, these binoculars come with all the features that you need. The binoculars are grouped under night vision scopes since the image clarity is very good even at night. When looking for stylish design binoculars which can act as a gift then this is the best choice.\n10: Xgen 2.1x Digital Night Vision Viewer\nThe Xgen Digital Night Vision Viewer is one of the smallest and modest night vision viewers. With its price being lower than the rest this viewer is affordable to most people. Being a digital device this viewer doesn’t have image intensifier, but it displays image using a low-light CCD camera.\nTo get to know the viewer better, below are the features.\nIn order to determine the power of this light, the viewer has five operational modes. You can easily change to any mode you want while using the viewer. Another thing to note is that infrared illuminator will remain active at all times to give you the best view of the object. For the brightness you don’t have to change the settings to adjust it, the viewer automatically adjusts the brightness level offering you great user convenience.\nThis viewer has a magnification of 2.1x which works for up to a distance of 70 yards. Working together with the illuminator this magnification levels assist to get a closer view of the object even in low light conditions.\nIf you are looking for an affordable viewer that gives you the best performance then the Xgen Digital viewer is a perfect choice. With the infrared light that cannot be turned off this viewer is the best for general use. This viewer provides you with modest features within a reasonable budget.\nBuying Guide of Night Vision Scope For The Money\nNow that we have highlighted the various benefits derived from the 10 top rated night vision scope for the money. We also have to include some factors to consider before acquiring any of the above scopes. Here is a well- researched guideline just for you.\nNight Vision Magnification\nWhen you want to acquire a night vision scope go for the one with digital night vision. This is because digital night vision scopes will take in light and convert it to a signal which is displayed on the screen for you to view. You will end up with clear images while using such scopes, unlike the standard night vision scopes.\nWe have come to the end of the review on the best night vision scope for the money. On this page, I have highlighted the scopes which are in the top 10 list. In case you have some dissatisfaction with the features, then the buying guide will give you a better view on the right night vision scope. The models I have highlighted are the best there is and can highly be relied on.","domain":"optical_engineering"}
{"url":"https://kissweather.net/2022/03/medical-applications-of-infrared-thermography-a-review-pdf/","date":"2022-05-16T11:41:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662510117.12/warc/CC-MAIN-20220516104933-20220516134933-00310.warc.gz","language_score":0.8307479619979858,"token_count":2235,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__124622671","lang":"en","text":"Medical applications of infrared thermography a review pdf\nPDF Infrared thermography (IRT) records the radiant heat of a body, which is emitted in the range of the electromagnetic spectrum that human vision is not able to identify. The thermal response depends on a number of specific physiological adjustments as body homeostasis and…\nConclusion Throughout this review of the available literature, Medical applications of infrared thermography: Read the full text or download the PDF: Subscribe.\nInfrared Thermography in Sports. A Review. APPLICATIONS OF INFRARED THERMOGRAPHY IN mainly focused in the medical field as thermography allows assessment of\nInfrared thermography 1. CONTENTS DIAGNOSIS OF ELECTRICAL SYSTEM IN MEDICAL THERMOGRAPHY LEVEL DETECTION Thermal Imaging and its Applications\nThe use of infrared thermography review of the clinical applications of IRT clinical trials which analyze the applications of dynamic IRT in a medical\nThis article aims to perform a systematic review of the clinical applications Clinical applications of dynamic infrared thermography infrared thermography\nInfrared Thermography-A Review scientific, and medical applications. With Infrared thermography is utilized for various\nThe measure of the skin temperature via infrared thermography is a reliable, non-invasive method. For years, infrared thermography has become a powerful investigation tool for in section in many applications, namely, mechanical, building, sports, and medical applications [12,13,14].\nThe Journal covers the entire field of infrared physics Medical applications of infrared thermography: of infrared thermography in humans: A review\nDetection by Infrared Thermography of the Effect of Local\nThe use of Thermal Imaging in Medical and Veterinary\nfundamentals of the infrared thermal imaging method and a review of its applications in agriculture. The region in the infrared band with wavelengths from 3 to 14 µm is called the thermal infrared region. This band is useful in imaging applications that use heat signatures (Gonzalez and Woods 2002).\nTHERMOGRAPHY.PPT. sohitkc. APPLICATIONS Condition monitoring Digital infrared thermal imaging in health care Thermology Opto-electronics Review\nInfrared thermography works in the thermalpart of the infrared applications for infrared vision.\nThermography, a new approach in food Medical applications Thermography has proved to be practical in a new approach in food science studies: a review 112\nreview of the effectiveness of infrared thermal imaging (thermography) for population screening and diagnostic testing of breast cancer iii executive summary\nFor medical applications a very narrow wavelength band (8 12 l m), termed as body infrared rays, is in general used. With the advent of newer generations of detectors, NIR and MIR regions are also used in medical thermography[15,16]. The rst modern infrared detector of …\nMedical Infrared Thermography: Heat Recognition from Tanks to Tumors to set the standard for military and medical applications of IR technology.\nSpectron IR manufactures superior medical thermal imaging cameras for medical applications. U.S. patented Imaging Workstation & more. Call 855-482-6444\nDownload the ‘Author Information Pack’ PDF; Most Cited Infrared Physics & Technology Articles. the use of infrared thermography in humans: A review.\nThe use of Thermal Imaging in Medical and Veterinary Applications Infrared thermography is one of use of thermal imaging in medical applications was\nMILITARY APPLICATIONS OF INFRARED THERMOGRAPHY NONDESTRUCTIVE TESTING IN POLAND The paper contains a short review of current and planned research works on the\nLogin toDownload PDF Philip J. Medical applications of infrared thermography: a influencing the use of infrared thermography in humans: a review.\nApplication of Thermography in Dentistry-A Review 1Dr.P.E.Chandra Mouli, Infrared thermography, Application Of Thermography In Dentistry-A Review\nas a health indicator in medical applications, presents a review of infrared thermography two of the main fields where infrared thermography-based sensors\nApplication of Infrared Thermography in the Applications of Infrared Thermography in Application of Infrared Thermography in the Assessment of Muscle Damage\nAbstract Abnormal body temperature is a natural indicator of illness. Infrared thermography (IRT) is a fast, passive, non-contact and non-invasive alternative to\nThe book covers the latest updates in the application of infrared to PDF. Potential of Thermal Skin Imaging Medical Thermography Passive Infrared Imaging Body\nThermal imaging showed increased skin temperature of his left Philip J. Medical applications of infrared thermography: a review. Infrared Physics PDF\nREVIEW ARTICLE Thermography: A New Diagnostic Tool Infrared thermography, the first medical association of thermography in 1954,\nThe book covers the latest updates in the application of infrared to biomedical of infrared to biomedical sciences Applications of Infrared Thermography for\nFLIR vs SEEK in Biomedical Applications of Infrared Thermography. Authors; J.: Medical applications of infrared thermography: a review. Infrared Phys (PDF\nAvailable at www.veterinaryworld.org/Vol.9/October-2016/7.pdf REVIEW ARTICLE Open Access Infrared Infrared thermography There are several applications of\nRead the latest articles of Infrared Physics & Technology at ScienceDirect.com, Medical applications of infrared thermography: A review. Download PDF. Article\nInfrared thermography (IRT) is a technique based on the acquisition of the thermal radiation of the bodies using thermal sensors of infrared (IR) cameras, which produce an image of the thermal infrared radiation captured through the conversion of the radiation values to temperature values.\nInstitute of Infrared Thermography. Using our reporter service allows you to easily submit PDF documents and images files. From there you can view the review\nThis brief 20-30 minute webinar with FLIR Strategic Business Development Manager, Rob Raymer, will review the technology of infrared thermography and discuss a\nIntroduction to Infrared Thermography introIR For this review activity, place the letter of the term in the blank next to the correct definition.\nMedical infrared thermal imaging cameras from Teletherm\nA comparative review of thermography as a breast 2010%20-%20Version%201.0.pdf. Medical applications of infrared thermography: a review\nmedical infrared imaging Download in the medical applications of thermal imaging imaging or thermography in medical research and practice. After a review of\nA Review of Breast Thermography research concerning the clinical application of diagnostic infrared Medical Center, introduced infrared imaging to\nApplication of Thermography in Dentistry-A Review 1 Anbar M.Title Of The Paper: Application Of Thermography In Dentistry-A Thermography; Infrared; Medical\nThe full article. Infrared Thermography Testing – Going Beyond The Electrical Connection Introduction Most people today think of infrared thermography as a tool that\n2012-02-17 · The Application of Medical Infrared Thermography in Sports Medicine. chapter PDF Citations in RIS The Application of Medical Infrared Thermography in Sports\nThe purpose of this paper is to review the different thermal sensors that can be used in agriculture as well as summarize various studies conducted on the potential application of thermal imaging in agriculture. 2. Thermal Sensors An infrared thermal imaging system comprises of a thermal camera equipped with infrared detectors, a signal\nInfrared thermography applications and uses of thermography. Any object that has a temperature above absolute zero Medical and Veterinary Infrared Applications:\n… www.elsevier.com/locate/infrared Review Medical applications of infrared thermography: medical applications, applications of infrared thermography\nThermal imaging guidebook for indusTrial applicaTions 1. • Thermal imaging applications within the industrial The thermal imaging camera Infrared energy\nApplication of Infrared to Biomedical Sciences SpringerLink\nReview Applications of infrared thermography for the investigation of historic structures N.P.Avdelidis a,*,A. Moropoulou b a IRT & Materials Consultancy, Agia Triada\nRecent Applications of Infrared Thermography been employed to detect medical conditions (see McCafferty 2007 for review). Infrared thermography can\nMedical, Clinical and Scientific infrared thermal imaging cameras for health evaluations, non-invasive ir systems, thermographic imaging of the\nWhat is Bio, medical, dental & pharmaceutical infrared imaging? Infrared cameras are used in a variety of bio(medical), dental and pharmaceutical applications.\nApplication of Infrared Thermography in the Assessment of\nInfrared Physics & Technology Vol 55 Issue 4 Pages 221\nmedical infrared imaging Download allowed for a renaissance in the use of thermography in medical research scientists in the area of infrared applications in\nThermography Archived Medical Policy and we reserve the right to review and update Medical Policy infrared thermography for differentiating between a melanoma\nCharacteristics of infrared thermography The difference from a spot thermometer (1) A spot thermometer measures the temperature of a single point, and it\n2011-07-29 · Medical Infrared Imaging pdf and cost-reduction designs Medical books Medical Infrared advances in the medical applications of thermal imaging\n… An overview of recent application of medical infrared thermography in thermography: a review. Infrared Historical Perspective of Infrared\n[INFRARED THERMOGRAPHY] Industrial Applications FLIR Systems – The World’s Sixth Sense FLIR Systems, Inc. designs, develops, manufactures, markets, and distributes\nJIAOMR REVIEW ARTICLE Thermography A New Diagnostic Tool\nThermography Archived Medical Policy\nInfrared thermography has applications in the assessment of animal welfare, and has been used to detect soring in horses and monitor stress responses. This review addresses the variety of uses for IRT in veterinary medicine, including disease detection, physiologic monitoring, welfare assessment, and potential future applications.\nTOPICAL REVIEW Infrared thermal imaging in medicine Finally, we review established and evolving medical applications for thermal imaging,\nInfrared thermography is a relatively new diagnostic modality under clinical investigation for various medical conditions. This study aims to review the published\nMost Cited Infrared Physics & Technology Articles Elsevier\nAn Overview of Thermography for Mechanical Applications\nmedical infrared imaging Download eBook pdf epub tuebl\nInfrared Thermography’s Application to Infrastructure\nInfrared imaging in Bio Medical Dental & Pharmaceutical","domain":"optical_engineering"}
{"url":"https://www.cimananotech.com/sante-technology/","date":"2019-11-21T23:34:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496671053.31/warc/CC-MAIN-20191121231600-20191122015600-00518.warc.gz","language_score":0.8669700622558594,"token_count":466,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__145148402","lang":"en","text":"Cima NanoTech developed the patented SANTE technology, a nanoparticle conductive coating that self-assembles into a random mesh-like network when coated onto a substrate. This unique proprietary formula enables high performance transparent conductors for applications like large format touch screens, capacitive sensors, EMI shielding, transparent heating, transparent antennas, OLED lighting, wearables, electrochromic, photovoltaic and many more.\nSANTE® transparent conductive films (TCFs) are manufactured by wet coating the SANTE® conductive coating on PET via a cost-efficient, commercial roll-to-roll manufacturing process. The coating cures to form a random conductive mesh-like pattern that possesses high transparency at very low surface resistance and is mechanically flexible.\nWhat Challenge Does SANTE Technology Address?\nTCFs is a high-growth market that enable touch capabilities in mobile phones, tablets, laptops and all-in-one monitors. Today, over 90% of the market adopts Indium Tin Oxide-based (ITO) TCFs. Unfortunately, ITO is brittle and can be costly depending on the fluctuating price of indium. Additionally, achieving superior conductivity at high transparency is challenging for ITO due to the physics of the material. New applications and emerging market trends like (a) large-sized devices, (b) flexible and curved displays, (c) thinness, (d) low-cost, and (e) simplified supply chain are changing the requirement landscape, stretching it beyond what the incumbent ITO can achieve. The unique characteristics of SANTE technology makes it an ideal material for bridging the gap between market demand and technological capabilities.\n– Low surface resistance that is more than 10X better than Indium Tin Oxide (ITO)\n– High transparency\n– Withstands flexing, stretching, tension and torsion\n– Thermoformable and moldable into 3D curved surfaces\n– Conductive network can be transferred onto a variety of substrates, enabling new conductive materials (e.g. PET, polycarbonate, glass, silicone\n– Films manufactured via wet coating, roll-to-roll process\n– Low wastage\n– Uniform conductivity\n– Stable at high current density","domain":"optical_engineering"}
{"url":"http://augustkfwn666.canariblogs.com/two-challenges-individuals-do-certainly-not-know-relating-to-lasik-eye-surgical-operation-5394773","date":"2018-12-11T09:55:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823614.22/warc/CC-MAIN-20181211083052-20181211104552-00589.warc.gz","language_score":0.9544072151184082,"token_count":895,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__10842714","lang":"en","text":"Two Challenges Individuals Do Certainly Not Know Relating To LASIK Eye Surgical OperationThe eye can be analyzed with relative ease as to both its function and its structure. A functional evaluation consists of the ability to relocate the orbit and the response of the pupil to light and lodging.\nThe function of the eye may be checked in a number of methods. The patient might be asked to identify illuminated letter or things of differing sizes on what is referred to as the Snellen chart.\nOn the other hand, the evaluation of the structural part of the eye may be made in a number of methods. Stress within the eyeball is determined by a \"tonometer.\" In specific illness, especially in glaucoma, the tension in the eyeball is increased noticeably.\nIt must be well kept in mind that a patient with an eye problem might have other issues. Frequently other physical conditions are main and impact the eye as a consequence. The appearance of the eye can notify the physician and the patient to difficulties in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nAs a result, one's reliance on sight is stressed when one faces a possible or temporary permanent loss of this crucial sense. Hence, when corrective measures are sought, certain types of vision correction such as contact lenses or eyeglasses are recommended.\nOn the other hand, some individuals are troubled with the fact that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to encourage decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nEssentially, LASIK eye surgical treatment is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another type of vision correction. The only difference is that with this kind of surgical treatment, one's vision is fixed permanently.\nWith LASIK eye surgery, the refractive errors in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea utilizing a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light click here for info into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgical treatment, there are still disadvantages that individuals should know. Most likely, the main reason why this type of eye surgical treatment has actually ended up being well accepted is since the majority of its cases had actually achieved success.\nNevertheless, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is one of the most sensitive parts of the eye, many individuals state that the operation can be really dangerous.\nIn other words, a basic mistake might almost trigger an individual's lifetime loss of sight. Thus, it is essential to think about many aspects prior to deciding whether LASIK eye surgery is the best restorative procedure one needs to undergo.\n2. It is not a ideal treatment\nLASIK eye surgical treatment may fix your vision but it does not always indicate that it can offer you a best vision. Even if statistical reports reveal that 70% of the clients might have 20/20 vision, this does not always suggest they have perfect vision as well.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK may not constantly be the ideal eye surgical treatment the method the majority of individuals see it\nOn the other hand, the examination of the structural part of the eye might be made in several ways. It must be well remembered that a patient with an eye issue might have other problems. Typically other physical conditions are main and affect the eye as a effect. The appearance of the eye can notify the physician and the patient to difficulties in some disturbances of great site other parts of the body even before other signs provide themselves.\nLike its concrete equivalent, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://acme.co.nz/product/MPWU5503/","date":"2021-06-19T18:45:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487649688.44/warc/CC-MAIN-20210619172612-20210619202612-00390.warc.gz","language_score":0.8907607197761536,"token_count":269,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__28249331","lang":"en","text":"NEW ZEALAND IMPORTER OF QUALITY OFFICE PRODUCTS & HAND TOOLS FOR 50 YEARS\nMaxell WUXGA Installation FL Projector 5000 ANSI\nMinimum Order Quantity: 1\nIntroducing Maxell model MPWU5503, this new laser light source 3LCD projector offers 5,000 ANSI lumens, approximately 20,000 hours (normal mode) of operation time and is virtually maintenance-free, there is no lamp to replace providing a dramatic reduction in total cost of ownership. Perfect for digital signage applications, auditoriums, lecture halls, large classrooms, conference rooms and museums. Plus, 5,000 ANSI lumens brightness and 1,500,000:1 contrast ratio results in super bright display with outstanding image clarity and uniformity. Additionally, this projector comes with lens shift for easy installation and a suite of advanced features including High Dynamic Contrast Range (HDCR2), 2 HDMI ports, and Maxellês original technology Accentualizer.\nAs with all Maxell projectors, you can expect vibrant image quality, cost-efficient operation, and long-lasting reliability. For added piece of mind, Maxellês MPWU5503 is also backed by a generous 5-year warranty and our world-class service and support programs.","domain":"optical_engineering"}
{"url":"https://inspection-systems.co.uk/","date":"2022-08-09T10:06:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570921.9/warc/CC-MAIN-20220809094531-20220809124531-00458.warc.gz","language_score":0.923906147480011,"token_count":414,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__53025697","lang":"en","text":"We are inspection systems\nFounded in 1989 from a small technology company in Manchester UK we have grown into one of the leading machine vision providers for the glass industry.\nLeading the way in machine vision for the glass industry.\nOur expertise in float glass inspection gave us the platform to expand our portfolio of products ranging from cut plate inspection and power measurement to thickness and mirror glass inspection.\nThe family of inspection systems products for the glass sector range from cut plate dimensional control through to thickness and powder measurement.\nIndustrial Web Inspection:\nOur expertise in camera technology, innovative approach to system designs and an engaging software team allows us to deliver high-end solutions to the market. Our experience in the web inspection world allows us to choose the right technology for each application.\nGlass Sector Factory Simulation:\nSimulation of the glass factory process is key to its success now and in the future. It enables the customer, OEM and supplier to de-risk their decisions when investing in new lines, factories and equipment, or wanting to increase, expand or consolidate their existing processes.\nFollow our latest news here and stay in touch with our organisation.\nInspection Systems has worked with Guardian glass for over 15 years delivering their mainstay product Eagle-I at the cold end of production. Recently with the next generation of products, Guardian required an inspection system for measuring both the thickness and stress of their float glass. They turned to Inspection Systems as our Thickness Gauge provides…\nInspection systems will be attending the Glasstec exhibition Germany Dusseldorf in September 2022 Hall 14/B18. We have been part of the show since 2004 and we are looking forward to sharing what we have to showcase in terms of our glass inspection & simulation portfolio. You can learn how we have developed and enhanced our…\nContact us to see how we can help you with float glass inspection\nGet in touch\nGet in touch with us today to talk about how we can help you with all your glass inspection needs.","domain":"optical_engineering"}
{"url":"https://www.smyckenmedmening.com/j5fj4/archive.php?ad48d5=nikon-d3500-crop-sensor-or-full-frame","date":"2023-12-03T11:28:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100499.43/warc/CC-MAIN-20231203094028-20231203124028-00403.warc.gz","language_score":0.9207631349563599,"token_count":3548,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__222027170","lang":"en","text":"The Canon 5D mark II is not as good, but used you might find a nice price on one. In short: FX-format gear costs more, tends to deliver higher quality images and captures wider-angle photos. We lose pixels. However, on a crop-sensor camera, the perspective you get when putting any lens on the camera is simply not as “wide” as it would be on the former type of camera. They are more affordable because of manufacturing costs, and many are built with the same structural quality as their full-frame versions. Usually, photographers see this as a valuable transition from one system to the other, but it does come at a premium. You won’t get the benefit of your full-frame camera’s resolution, but the lenses will work just fine. The Nikon D3500 is an entry-level 24.2-megapixel DX format DSLR Nikon F-mount camera announced by Nikon on August 30, 2018. No, the Nikon D3500 is not Full Frame! The former is often classed as the professional standard, with the sensor size being a close replica to that of a 35mm film negative. This is where the sensor matters when it comes to lenses. >\nA full-frame sensor is the same size as a 35mm film frame—just think of the film shot in many pre-digital cameras. Em combinação com a potência de rendimento da sua objetiva NIKKOR, pode começar a criar retratos artísticos com uma suave desfocagem do fundo. If you are using a crop-sensor camera, multiply any focal length by 1.5 and you’ll find out what the equivalent perspective is on a full-frame camera. A full frame Nikon D700 is an even better option. Like the D3400, the new D3500 uses a 24MP APS-C DX-format sensor and can shoot video in Full HD (1080p). For those photographers moving from film SLR cameras to a DSLR, a full-frame sensor does not affect how you use your lenses and see … Nikon D3500 specs and sensor info: 23.5 x 15.6 mm CMOS sensor with 28.21 mm diagonal and crop factor of 1.53. No, the Nikon D3400 is not Full Frame! Despite the price differences, seems like a lot of people are wondering which one of the two cameras to choose – the D7100, a cropped-sensor “DX” camera, or the D600, a full-frame “FX” camera. Pixel pitch is 3.89 µm. If you decide to use a DC lens on a full-frame camera, be advised you will need to manually crop the image or utilize an auto crop mode in the camera’s menu. Generally, a full frame sensor can provide a broader dynamic range and better low light/high ISO performance yielding a higher quality image than a crop sensor. You can find full-frame sensors in the current Nikon camera models, such as the DF, D610, D750, D810, and the D4S, and all of the older D4, D600, D700, D800/E, and D3, D3S, and D3X models. Nikon D3400 has a APS-C (23.5 x 15.6 mm) sensor Read our detailed Nikon D3400 Review Nikon made all the right moves by incorporating a superb battery life, an easy to use … This has several practical effects: Full frame cameras have better high-ISO performance and more megapixels. At the time of writing, Nikon makes only one size of crop sensor, which measures approximately 24mm by 16mm (Figure 1.7). A full-frame sensor is the same size as a 35mm film frame—just think of the film shot in many pre-digital cameras. Buy 2+ books or eBooks, save 55% through December 2. … You can find full-frame sensors in the current Nikon camera models, such as the DF, D610, D750, D810, and the D4S, and all of the older D4, D600, D700, D800/E, and D3, D3S, and D3X models. For Nikon cameras, that represents 1.5x the focal length written on the lens. Because of the way the Nikon DSLR lenses are designed, they have different capabilities with different image sensors. The image sensor measures 36mm by 24mm. Officially it's \"APS-C\" size. To start, the D3500’s 24 megapixel sensor is one of the best aps-c crop sensors on the market. If you’re on the fence about buying a full frame camera or simply don’t know what the fuss is all about, a full frame camera typically offers more resolution. For those photographers moving from film SLR cameras to a DSLR, a full-frame sensor does not affect how you use your lenses and see your images, and you can more than likely use the same lenses. This means that the absolute amount of light they gather is 2.5x less than full-frame. © 2020 Pearson Education, Peachpit. A crop sensor does not actually magnify the focal length of any lens. The size difference for crop sensors is determined by the sensor’s crop factor. A full frame lens will work perfectly well on this sensor, but your field of view will be approximately 75 percent of what you see on a full frame, or put another way, focal length will appear to be about 150 percent of what you're used to on full frame. Historically, 35 mm was considered a small film format compared with medium format, large format and even larger.. A Nikon DX crop sensor has a crop factor of 1.5x. For example, Nikon makes both DX and non-DX lenses. This is one of the issues of moving to a full-frame sensor camera system: Some, if not all, lenses might also need to be updated (or upgraded) to fit the new camera. One of the first things you'll encounter when buying a Nikon DSLR or Nikkor lens is the distinction between FX and DX models. Nikon uses the designation FX for all of the full-frame sensor cameras. Different NIKKOR lenses are designed to accommodate the different camera sensor I loved that camera. It simply crops the sides, top, and bottom of the lens’s angle of view. The D3500 is available with two kits: with an 18-55mm lens for $499.95 and a two lens kit (18-55mm and 70-300mm lenses) for $849.95. To make it even more complicated, Nikon makes a set of lenses designed to work with their DX crop-sensor cameras. There is nothing wrong with a crop-sensor camera. It really all depends on which camera you are using. How much smaller? made asmaller version. Sounds confusing, and it is unless you see it for yourself! Nikon makes a DX-format sensor and an FX-format sensor. Articles\nSince the crop sensor chops a considerable amount of sensor away from a full-frame chip’s perimeter, the area of the lens now used can be equated to an 75mm lens on a full-frame sensor. The effective focal length of any lens attached to a DX body is 1.5 times the actual focal length, or focal length on an FX body. This smaller image-capture area became known as a \\\"crop-sensor\\\" camera, and the old standard 35mm format became \\\"full-frame You only need a better image sensor or new camera if you shoot in low light/night at high ISO say 1600 to 6400. While reviewing the Nikon D600 recently, I had so many different lenses and cameras on my hands that I decided to conduct a little side experiment. 46 MP | Full frame BSI-CMOS SensorNikon F Mount, Rank in All Cameras: #15Rank in DSLR Cameras: #1, 42 MP | Full frame BSI-CMOS SensorSony/Minolta Alpha Mount, Rank in All Cameras: #20Rank in DSLR Cameras: #2, 36 MP | Full frame CMOS SensorPentax KAF2 Mount, Rank in All Cameras: #27Rank in DSLR Cameras: #3, 25 MP | Full frame BSI-CMOS SensorNikon F Mount, Rank in All Cameras: #30Rank in DSLR Cameras: #4, 21 MP | Full frame CMOS SensorNikon F Mount, Rank in All Cameras: #31Rank in DSLR Cameras: #5, Other Frequently Asked Questions about Nikon D3500, 2020 Black Friday - Canon Camera and Lens Deals. O grande sensor de imagem de formato DX de 24,2 MP da D3500 captura fotografias e filmagens Full HD com grande riqueza de detalhe, mesmo quando dispara sob iluminação reduzida. For the crop factor to become relevant in this case, you must multiply the focal length of the lens by 1.5 to determine the actual focal perspective in which you are shooting. If you are shooting with a full-frame Nikon camera, the focal length of the lens with which you are shooting is going to result in that true perspective. Here is the catch. So, in order to get the same exposure, a crop sensor’s image has to be amplified 2.5x as much. These sensors can be found in all the current DX cameras—the D3300, D5300, and D7100. It succeeds the Nikon D3400.In 2019, the D3500 won the TIPA Best DSLR Camera award. Sensors ranging from APS-C to full-frame are designed to match their lenses, which cover ranges from 28-75mm equivalent, so image quality is top-notch. Best cameras for Instagram in 2020. For the full-frame camera, which has a crop factor of 1x, the perspective provided when looking through and shooting with the 50mm focal length is actually 50mm. The larger the crop factor, the smaller the sensor. All rights reserved. However, crop-sensor cameras are a big hit with folks in the sports and wildlife photography arenas, because compared to a full-frame camera that packs the same resolution (megapixels) as a crop-sensor camera, the crop sensor provides a bit further “reach” when looking at two images of the same size. For Nikon crop-sensor, or DX, cameras, a bit more than 50 percent smaller. Nikon has just unveiled a new 4K-capable DX-format DSLR, the Nikon D7500, which inherits the processing and sensor tech from their crop-sensor flagship, the D500. Nikon full-frame (FX) DSLRs and Sony A7-series cameras can automatically restrict the sensor area to an APS-C-size rectangle in the middle of the frame. However, the next time you read online that an ultra-wide image was shot with an AF-S Nikkor 16–35mm f/4G ED VR on a Nikon D810, you might consider looking into an AF-S DX Nikkor 10–24mm f/3.5–4.5G ED for your Nikon D5300. The DX-format is the smaller sensor at 24x16mm; the larger full frame FX-format sensor measures 36x24mm which is approximately the same size as 35mm film. You’ll also hear this referred to as a full-frame image sensor camera. Let’s say you are using a 50mm focal length on both a full-frame (FX) camera, such as the Nikon D810, and on an crop-sensor camera (DX), such as the Nikon 7100. It will be available for $1,249.95. A full-frame DSLR is a digital single-lens reflex camera (DSLR) with a 35 mm image sensor format (36 mm × 24 mm). Wait, we’re not done with this subject yet! Figure 1.7 This image represents what you would capture using the two different-sized Nikon sensors. Mar 2, 2020 at 22:23. However, for the D7100, we must multiply the focal length, 50mm, by the crop factor, 1.5, to determine the visual perspective with which we’re shooting: 75mm. Use code BOOKSGIVING. Yes it may be true that both Canon and Nikon will stick to their new lines of full-frame mirror-less bodies. Contents1 Why We Like It – Nikon D3500 Review1.1 Performance1.2 Design1.3 Value1.4 Nikon D3500 Review Wrap Up 9.2Expert RatingFor those seeking entry-level cameras, Nikon gives you every reason to check out their best DSLR camera (for budget), the D3500. The two major manufacturers, Canon and Nikon, both have different options depending on whether you’re getting a lens for a full-frame or crop sensor camera. On paper, the Nikon D3500 looks exactly like what you’d expect from an entry-level Nikon DSLR. Publishers of technology books, eBooks, and videos for creative people, Home\nOur last comparison will be to show the difference between the new Nikon D7100 and the full-frame Nikon D600, which we reviewed last year. APS-C on the other hand, is roughly two thirds the size of a full frame sensor, resulting in the field of view being multiplied by a factor of 1.5-1.6x that of a standard full frame model. This is not magnification, just simply the result of two different-sized sensors of the same resolution being combined with the same focal length. Yes, the D3100 is a cropped sensor. That's mainly because FX sensors are 136 percent larger than DX sensors.It's not surprising that a bigger chip could cost more and provide better quality. Shop now. If you’re using an APS-C sized sensor, you need to be aware of the crop factor. Even if you’re new to the world of digital single-lens reflex (DSLR) photography, you’ve probably heard a comparison between full-frame and crop sensors. Even if you’ve got a Canon camera, you can’t be sure that any Canon lens will work. But what's this business of wider angles? After the razzmatazz of the launch of Nikon's Z7 and Z6 full-frame mirrorless models last week, the entry-level D3500 DSLR was quietly unveiled last night.. Cyber Monday deals: see all the best offers right now! I used the Nikon D7000 for a while. The DX lenses are fewer in number, but Nikon tries to accommodate crop-sensor camera owners by offering equivalents to some of the most popular lenses. When cropping a full frame image to have a larger magnification, we throw away resolution. The physical sensor size is smaller than a full frame (1/1.5 or 0.67x for 1.5 crop factor, 1/1.6 or 0.625x for 1.6 crop factor), but retains the same 3:2 aspect ratio of their full frame big brothers. For many, particularly portrait photographers, landscape photographers, and photojournalists, a full-frame sensor is much desired for many reasons beyond how it correlates with the use of our lenses. So, practically speaking, how does this affect you? But crop sensor cameras increase your effective focal length, which is … At 10mm with this latter combo, you are actually achieving the 16mm perspective of the former’s image. Nikon uses the designation FX for all of the full-frame sensor cameras. Full-frame cameras do not have any crop factor since they operate on the 35mm format used in the days of film. Most modern camera companies use either full frame or APS-C (crop) type sensorsin their DSLR (and mirrorless) cameras. I used it quite a bit for both video and photography. Perhaps it’s even the best, though a number of other Nikon and Sony cameras have essentially the same sensor. APS-C sensors, however, have a crop sensor 1.5 for Nikon or 1.6 for Canon. A crop sensor shares the same rectangular perspective (often referred to as the 3:2 ratio) but is considerably smaller. Nikon D3500 has a APS-C (23.5 x 15.6 mm) sensor Read our detailed Nikon D3500 Review Full frame sensors are also preferred when it comes to architectural and landscape photography due to having a wider angle for the same lens compared to that lens on crop sensor camera.\n2020 nikon d3500 crop sensor or full frame","domain":"optical_engineering"}
{"url":"http://www.sharp.com/memorial-outpatient/new-surgery-macular-degeneration.cfm","date":"2014-10-23T12:35:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1413558066290.7/warc/CC-MAIN-20141017150106-00330-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.9247336387634277,"token_count":419,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__64449856","lang":"en","text":"Smaller than a pea, the telescope implant uses micro-optics to improve vision for people with end-stage AMD.\nA new surgical procedure at Sharp Memorial Outpatient Pavilion offers hope for patients with end-stage, age-related macular degeneration (AMD), the leading cause of blindness in older Americans.\nDuring the procedure, a miniature telescope is implanted into the patient's eyes, restoring a portion of their vision. Dr. John Bokosky, a board-certified ophthalmologist affiliated with Sharp Memorial Outpatient Pavilion, is one of only a few surgeons nationwide who are trained in the CentraSight™ treatment program that includes the surgery. The procedure is offered nowhere else in San Diego.\nAt least 15 million Americans are affected by some form of AMD, which causes cells in the retina to stop converting absorbed light into the electro-chemical signals that the brain recognizes as images. When the light-sensing cells are damaged, the brain does not receive enough information to create a clear image.\nThe telescope device, approved by the U.S. Food and Drug Administration in 2010, is the only surgical option available to patients with AMD. Sometimes called a \"bionic eye,\" the implant is smaller than a pea. It projects magnified images onto the portion of a patient's retina not affected by AMD, making it possible for patients to see people and objects in front of them.\nDr. Bokosky is currently screening patients for the implant. To be considered a potential candidate, patients must meet age, vision and cornea health requirements. Physicians must also confirm that patients have AMD and are suitable for surgery. The implant cost is covered by Medicare.\nFor More Information\nTo find a Sharp-affiliated doctor, search for San Diego ophthalmologists or call 1-800-82-SHARP (1-800-827-4277), Monday through Friday, 8 am to 6 pm. To learn more about our vision services, contact Sharp's Vision Laser Center at 858-939-5085.","domain":"optical_engineering"}
{"url":"https://news2business.com/2400-new-eyes-on-the-sky-to-see-cosmic-rainbows-sciencedaily/","date":"2023-12-09T18:35:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100942.92/warc/CC-MAIN-20231209170619-20231209200619-00853.warc.gz","language_score":0.9211472272872925,"token_count":309,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__143061663","lang":"en","text":"The Subaru Telescope successfully demonstrated engineering first light with a new instrument that will use about 2400 fiberoptic cables to capture the light from heavenly objects. Full operation is scheduled to start around 2024. The ability to observe thousands of objects simultaneously will provide unprecedented amounts of data to fuel Big Data Astronomy in the coming decade.\nIn addition to cameras, astronomers also use instruments known as spectrographs to study celestial object. A spectrograph breaks the light from an object into its component colors, in other words it creates a precise rainbow. Studying the strengths of the different colors in the rainbow from an object can tell astronomers various details about the object such as its motion, temperature, and chemical composition.\nThis new instrument, called PFS (Prime Focus Spectrograph), breaks visible light rainbows into two components: the red side and the blue side. So it might be more correct to refer to the data sets as half-rainbows. Combined with a third kind of detector which can see the infrared light invisible to humans, that makes one-and-a-half rainbows for an object studied with all three types of detectors.\nTogether with a widefield camera (HSC: Hyper Suprime-Cam), PFS will help launch the Subaru Telescope 2.0 project which will reveal the nature of dark matter and dark energy, structure formation in the Universe, and the physical processes of galaxy formation and evolution.\nMaterials provided by National Institutes of Natural Sciences. Note: Content may be edited for style and length.","domain":"optical_engineering"}
{"url":"https://www.nirvanaweightloss.com/tattoo-revoval","date":"2024-02-29T15:20:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474843.87/warc/CC-MAIN-20240229134901-20240229164901-00616.warc.gz","language_score":0.8203451037406921,"token_count":252,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__119955562","lang":"en","text":"Laser Tattoo Removal\nChanged your mind or tattoo no longer fits your lifestyle?\nColor Ink Tattoo\nMutiple Treatments Discount\nBlack & White Tattoo\nEffective Laser Tattoo Removal\nTattoo Removal with Medlite C6 in \"The Works\" (The History Channel)\nHow Laser Tattoo Removal Works\nA Demonstration of Medlite C6 Tattoo Removal\nOur Medlite C6\nMedLite C6 lives up to its reputation as the “workhorse” of aesthetic lasers, with unmatched Precision Beam Technology. By providing a true flat-top beam profile, MedLite produces consistent results with fewer complications for reliable treatments time after time. MedLite’s homogenous beam delivers energy evenly over the skin’s surface, minimizing epidermal injury and increasing patient satisfaction. The wavelength capabilities of the laser—allowing for full-color tattoo removal—with the MultiLite Dye Handpieces for 585 nm (yellow) and 650 nm (red).\nMultiple wavelengths also provide the versatility needed to treat:\npigmented lesions, including Nevus of Ota, café-au-lait lesions, solar lentigines, uneven skin tone, and melasma","domain":"optical_engineering"}
{"url":"https://chatgptglobal.news/apples-iphone-16-series-to-feature-stacked-rear-camera-sensor-design-in-2023/","date":"2024-03-01T13:17:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475311.93/warc/CC-MAIN-20240301125520-20240301155520-00712.warc.gz","language_score":0.9144198894500732,"token_count":564,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__74610081","lang":"en","text":"Apple is rumored to be introducing a stacked rear camera sensor design in its upcoming iPhone models. According to respected Apple industry analyst Ming-Chi Kuo, the iPhone 16 series, expected to be released in 2023, will feature this innovative camera technology.\nPrevious rumors suggested that the iPhone 15 and 15 Plus models would have a 48-megapixel main camera, but stacked image sensor technology was not mentioned at the time. However, Kuo reveals that the stacked sensor design will be included in Apple’s standard, lower-end iPhone 15 and 15 Plus models, rather than the higher-end iPhone 15 Pro and Pro Max devices.\nProduction issues seem to be the reason behind the partial adoption of stacked image sensors in the iPhone 15 lineup. This problem may continue to affect Apple in 2024. To mitigate this, Apple has reportedly secured most of the stacked CMOS image sensor (CIS) production capacity from Sony Semiconductor Solutions well in advance.\nKuo also suggests that any production shortages from Sony may benefit rival supplier Will Semi, especially considering CIS orders from non-Apple smartphone manufacturers.\nReports indicate that the introduction of stacked sensors in Interchangeable Lens Cameras (ILCs) has had a minimal impact on image quality but has greatly improved camera speed. Stacked sensors allow for faster data readout, which can enhance imaging performance. Faster data readout enables quicker shooting speeds, improved autofocus, and better video performance. The quicker the data can be read from the sensor, the better the overall performance.\nCanon Europe explains how Canon’s stacked sensor in the Canon EOS R3 enables faster data readout. The Canon R3’s sensor is also backside-illuminated, which enhances light collection efficiency and, consequently, image quality.\nWhile rumors suggest that the stacked image sensor in the iPhone 15 and 15 Plus models will offer better image quality, it is essential to consider its potential impact on image processing performance. Image processing plays a significant role in the excellent image quality featured in Apple’s iPhone devices. As processors become more powerful and artificial intelligence (AI)-driven software improves, the image processing pipeline can better handle data from the image sensor. If an image sensor can deliver more data into the pipeline faster, it should offer noticeable benefits for image processing tasks.\nIt is unlikely that Apple will want its standard iPhone 15 to outperform the iPhone 15 Pro models. Therefore, consumers may not fully experience the power of a 48-megapixel stacked Sony chip until 2024.\nWith stacked rear camera sensor technology, Apple aims to improve the imaging capabilities of its lower-end iPhone models. The inclusion of this feature in the upcoming iPhone 16 series shows Apple’s commitment to delivering advanced camera capabilities to a wider range of users.","domain":"optical_engineering"}
{"url":"https://suburbanthugs.com.au/products/48w-outdoor-led-flood-light-for-garage-yard-patio-entrance-and-parking-lot","date":"2022-07-06T16:29:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656104675818.94/warc/CC-MAIN-20220706151618-20220706181618-00375.warc.gz","language_score":0.8092746138572693,"token_count":328,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__277014958","lang":"en","text":"48W Outdoor LED Flood Light for Garage Yard Patio Entrance and Parking lot\nHurry up! Sales Ends In\nHurry! Only 0 Left in Stock!\n48W LED Flood Light Outdoor, Super Bright Work Light, 3300lm, IP65 Waterproof Exterior Lights, 6000K Daylight, Indoor Outdoor Lighting for Garage Yard Patio Entrance and Parking lot\n- ?Super Bright LED Work Lights? : LED Flood LED Work Lights features the bright quad row 48w LED chips, 3300 lumens, emitting 6000k white beam. cube led work light is an ideal choice for different off-road and will light up everything in front of you.\n- ?Highly Reliable Design?: Using high-gradeIP67 Waterproof Dustproof Rate, adjustable mounting brackets for 48w led work light, easy to install, it can be used indoors or outdoors.\n- ?Excellent heat dissipation effect?: 48w LED flood work lights with more cooling fins, better heat dissipation, durable 6063 Die-cast aluminum alloy housing, A heat dissipation design is added to the back, clear and corrosion-resistant lens, continue illuminating up to 50,000 hours.\n- ?Wide Range of Use?: You can use indoor and outdoor as Garden Lighting, Backyard Lighting, Back-up Light, Off Road Lighting, Construction Lighting, and other work light. This 48W LED square light bar can be compatible with almost all Motorcycles, SUV, ATV, Jeeps, 4x4, 4WD, Trucks, Tractor, UTE, Cars, Boats, etc.","domain":"optical_engineering"}
{"url":"https://phy2.thu.edu.tw/web/page/page.php?scid=73&sid=93","date":"2024-04-19T09:18:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817382.50/warc/CC-MAIN-20240419074959-20240419104959-00596.warc.gz","language_score":0.8631400465965271,"token_count":148,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__1555528","lang":"en","text":"We focus our research on the properties of nanomaterials and their applications to optoelectronic devices and biomedicine; especially, taking advantage of nanomaterials to enhance the performance of optoelectronic devices and to develop the target drugs for cancers. Scanning probe microscope, optical spectrometer, X-ray photo-electron spectrometer and impedance analyzer are the major analytical tools in our study. Undertaking those researches, the engaged students can establish their capabilities in stand-alone working, work plan sketch, trouble shooting and self-expression.\nLiquid Crystals and Metamaterials Laboratory\nAdvanced Materials for Photonics and Electronics Laboratory\nHigh Performance Computing Lab","domain":"optical_engineering"}
{"url":"http://www.zuochao.org/members.html","date":"2023-12-05T08:43:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100550.40/warc/CC-MAIN-20231205073336-20231205103336-00874.warc.gz","language_score":0.7837112545967102,"token_count":832,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__261978281","lang":"en","text":"Chao ZUO (左超). D.O.B: 07/Aug/1987\nI am currently a Phd candidate at Lab 404, School of Electronic Engineering and Optoelectronic Techniques, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing, China, under the supervision of Prof. Qian Chen.\nBetween Sep. 2012 and Mar. 2014, I worked as a Research Assistant with Prof. Anand Krishna Asundi, at the Centre for Optical and Laser Engineering (COLE), Nanyang Technological University (NTU), Singapore.\nDuring the period of Aug. 2013 to Sep. 2013, I was a visiting researcher at\nInstitut für Technische Optik - Universität Stuttgart, Germany.\nFor more information about our research, please click here\nEmail: surpasszuo <at> 163.com\nHonors & Awards\n- SPIE Travel scholarship (2014)\n- China Optical Society \"Wang Daheng Optical Award\" (2013)\n- SPIE Optics and Photonics Education scholarship (2013)\n- The National scholarship, China (2013)\n- Science and Technology Advancement Award, First Class, MOE of China (2012)\n- China Scholarship Council (CSC) scholarship (joint training program), China (2012)\n- The National scholarship, China (2012)\n- China Aerospace Science and Industry Corporation (CASIC) scholarship (2012)\n- Outstanding doctoral training objects of Nanjing University of Science and Technology, China (2011-2014)\n- Top Scholarship, Nanjing University of Science and Technology, China (2011-2014)\n- Skilled in MATLAB for algorithm design, simulation, and signal & image processing\n- Skilled in C/C++ programming languages for signal & image processing under environment of Visual Studio 2008 and C++ Builder 6.0.\n- Skilled in camera API programming: AVT (Allied Vision Technologies) GT640, AVT GC1280, The Imaging Source 41AU02.\n- Familiar with digital logic circuits design (hardware), PCB design using Cadence and Altium Designer.\n- Skilled in FPGA and VHDL/Verilog-HDL language for designing digital system, familiar with both ALTERA Quartus II and XILINX ISE. Especially have a profound understanding of the algorithms implemented with FPGA for image processing.\n- Familiar with C51, STM32, EZ-USB micro-controller and Nios II soft core design flow, have experience in interfaces, drivers development and testing.\n- Skilled in using Texas Instruments C6000 DSP (DM642, DM643, DM6446) for algorithms implementation and optimization.\n- Sound understanding of classic approaches in optical metrology, image processing, computer vision. Strong grasp of linear algebra, statistics, signal analysis, information theory and other relevant mathematics\nMembership & activities\nMany thanks to my collaborators, colleges, and all the people who helped me\n- Dr. Lei Huang Brookhaven National Laboratory, US\n- Prof. Yingjie Yu Shanghai University, China\n- Dr. Weijuan Qu Ngee Ann Polytechnic, Singapore\n- Dr. Kemao Qian Nanyang technological university, Singapore\n- Prof. Qican Zhang Sichuan University, China\n- Dr. Yu Fu Nanyang Technological University, China\n- Dr. Giancarlo Pedrini Institut f. Technische Optik , Germany\n- Prof. Peng Gao Xi'an Institute of Optics and Precision Mechanics (XIOPM), CAS, China\n- Prof. Caojin Yuan Nanjing Normal University, China\n- Dr. Yucheng Wang Nanyang Technological University, Singapore\n- Prof. Laura Waller University of California, Berkeley, US\n- Prof. Lihong Ma Zhejiang Normal University. China\n- Prof. Kaiguo Qi University of Science and Technology of China","domain":"optical_engineering"}
{"url":"https://www.strasser-usa.com/product/zeiss-conquest-v6-3-18x50/","date":"2023-09-23T05:03:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506479.32/warc/CC-MAIN-20230923030601-20230923060601-00742.warc.gz","language_score":0.9324427247047424,"token_count":295,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__9274792","lang":"en","text":"The zoom range coupled with the lightweight and lean design of this riflescope makes it ideal for hunting – period! The 3x setting is perfect for hunting in the thick timber or under tree canopies during low-light conditions. With the 18x magnification setting mid- to long-range hunting and shooting is mastered. With over 100 minutes of elevation adjustment, long-range hunting and shooting can be accomplished at greater distances. The compact design is reliable, easy to mount on hunting rifles, and has features that perform as good as its optics. This model is available with capped elevation and windage turrets, with a simple yet highly effective duplex style #6 reticle. You can also select from external elevation and windage turret options that incorporate ZEISS’ highly desired Ballistic Stop. The Ballistic Stop assures you of your zero each and every time by creating a most solid and definitive stop at zero. You can choose from two second focal plane moa-based smart reticles: ZBR-2 and ZMOA-2. This riflescope yields a spectacular image and unmatched performance.\nWith the Conquest® V6 riflescope, ZEISS has once again set a new standard in image quality and mechanical precision. Three models cover all facets hunting and shooting – including long-range. Whether for sitting, stalking game, or long-range applications – the Conquest V6 with 6x zoom is engineered to impress in any environment or scenario.","domain":"optical_engineering"}
{"url":"http://www.moorelandpartners.com/transactions/mooreland-advises-em4/","date":"2019-09-16T12:54:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572556.54/warc/CC-MAIN-20190916120037-20190916142037-00243.warc.gz","language_score":0.9167163372039795,"token_count":736,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__184961419","lang":"en","text":"Mooreland Partners advises EM4, Inc. in its sale to Gooch & Housego plc\nGreenwich CT, January 24, 2011 – Gooch & Housego plc has acquired EM4 Inc., a US manufacturer of optoelectronics, based near Boston, Massachusetts. EM4 produces active photonic components and fiber-optic systems, and specializes in high-performance, ruggedized components that are typically used in aerospace and satellite applications. Gooch & Housego, which is based in Somerset, UK, is expecting the acquisition to cost an initial consideration of up to $12 million, with a further potential performance-based earn-out of $7 million. The acquisition of EM4 will enable Gooch & Housego to move further towards a fully integrated service platform offering both ‘active’ and ‘passive’ fiber optic technology, and enhance our penetration of the US aerospace and defense market. Gooch & Housego has a good track record of successfully integrating businesses into the Group and the Board is confident that EM4 will fit in well. The Acquisition expects to be earnings enhancing for Gooch & Housego in the financial year to 30 September 2012.\nAbout EM4, Inc.\nEM4 is a US fiber optics business based near Boston in Massachusetts. It was established in 2000 to supply fiber optic components to the communications market. Today, EM4 designs and manufactures fiber optic products that incorporate “active” components such as lasers, detectors and high frequency receiver or transmitter electronics. These products are utilized in aerospace and defense, telecommunications, industrial and life sciences applications. EM4 specializes in high performance, ruggedized components and systems that are qualified for use in extreme environments such as those found in satellite and aerospace applications. EM4 predominantly serves customers in the US and Europe. For more information, visit www.em4inc.com.\nAbout Gooch & Housego plc\nGooch & Housego PLC manufactures acousto-optic and electro-optic devices, precision optical components, crystals, optical instruments, and imaging systems in the United Kingdom and internationally. Its acousto-optic product line includes Q-switches, modulators, tunable filters, frequency shifters, deflectors, fiber-coupled devices, mode lockers, cavity dumpers, and pulse pickers. The company also offers pockels cells, nonlinear optics and IR wave plates, frequency conversion crystals, IR optics, and housings and holders; and optical radiation measurement solutions for life science and instrumentation. In addition, it provides fiber optic components and optical modules, such as single mode fused components, fused components, fiber laser components, photonic packaging, fiber optic modules and connectors, and fiber-coupled devices for telecommunications, fiber laser, avionics, and biomedical research markets. Further, the company offers various RF drivers consisting of Q-switch drivers, modulator drivers, acousto-optic tunable filter drivers, and deflector drivers, as well as fiber coupled q-switch, tunable filter drivers, device drivers, and rack systems. Additionally, it manufactures narrow band and wide band high reflector coatings for use in devices, such as spectrophotometers, laser scatterometers, ring down cavity loss meters, laser transmissometers, and ellipsometers. The company serves industrial, research, biomedical, life sciences, aerospace, and defense sectors. Gooch & Housego PLC was founded in 1948 and is headquartered in Ilminster, the United Kingdom. For more information, visit www.goochandhousego.com.","domain":"optical_engineering"}
{"url":"https://www.mident.cn/exclusively-obtain-3-len-imaging-technique-led-dental-chair-light-p2558112.html","date":"2021-01-23T18:37:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703538226.66/warc/CC-MAIN-20210123160717-20210123190717-00111.warc.gz","language_score":0.7968458533287048,"token_count":250,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__61610870","lang":"en","text":"Exclusively Obtain 3-len Imaging Technique Led Dental Chair Light\nFeatures Exclusively obtain 3-len imaging technique with patent right. Square, neat light spot. Illuminance within the light spot is average, light’s cutting-off show very good. Exclusively own the function of adjusting color temperature available from 4000K to 5000K. With yellow lighting specially setting at 3000K, specially designed for filling teeth, avoiding to make the resin(fillings) solidified. Eight degree of adjustable illuminance with sensor, with the buzz voice indicator. With Multi-functional LCD display. 9 LED bulbs, adopt “CREE” IC made in USA. Appearance design show noble and graceful, protected by patent right.\nInput Voltage: AC 12-24V\nColor Temperature: 4000-5000 K(Adjust Color Temperature)\nSpot Size: 80*160 mm(Distance for 700mm)\nSingle yellow light: 3000 K\nAmount of LED tube: 9pcs\nTags: exclusively 3-len imaging led dental chair light manufacturer, exclusively 3-len imaging led dental chair light for sale, china exclusively 3-len imaging led dental chair light, exclusively 3-len imaging led dental chair light price","domain":"optical_engineering"}
{"url":"https://www.zetek.it/en/km070/20/","date":"2023-12-04T03:44:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100523.4/warc/CC-MAIN-20231204020432-20231204050432-00529.warc.gz","language_score":0.7556888461112976,"token_count":103,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__28981272","lang":"en","text":"Professional tachometer for measuring the speed of rotation without contact, in reflection, with laser beam. Through the appropriate supplied adapter and the 3 interchangeable heads can be effected measurements by contact. A further head allows measurements of linear speeds. The instrument automatically stores the last measured value, the minimum and maximum.\n|RPM||5 - 99999 RPM|\n|Linear speed||0,05 - 1999,9 m/min|\n|Power supply||4 x 1,5 AAA batteries not included|","domain":"optical_engineering"}
{"url":"https://duo-consulting.com/maximize-brightness-industrial-led-lighting-for-unparalleled-workplace-illumination/","date":"2023-12-01T17:32:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100290.24/warc/CC-MAIN-20231201151933-20231201181933-00492.warc.gz","language_score":0.9167453646659851,"token_count":562,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__153115053","lang":"en","text":"Maximizing brightness in industrial settings is not merely a matter of flipping a switch; it is a strategic imperative that demands cutting-edge technology and a comprehensive understanding of the nuanced requirements of the workplace. Industrial LED lighting stands at the forefront of this pursuit, offering unparalleled illumination that transcends traditional lighting solutions. The core principle guiding the quest for maximum brightness is efficiency – an efficiency that goes beyond mere luminosity to encompass factors such as energy consumption, durability and adaptability. At the heart of industrial LED lighting’s supremacy is its luminous efficacy, a measure of how effectively a light source converts electrical energy into visible light. LED lights boast an impressive luminous efficacy, ensuring that a significant proportion of the energy consumed is transformed into bright, usable light. This efficiency not only translates to cost savings but also aligns with sustainability goals, reducing the overall environmental impact of industrial operations.\nThe durability of industrial LED lighting further distinguishes it in the quest for maximum brightness. Industrial environments are notorious for their harsh conditions, including extreme temperatures, vibrations and exposure to dust and moisture. LED lights, designed with solid-state technology, are inherently robust, outlasting traditional lighting solutions and minimizing downtime due to maintenance. This durability ensures a consistent and reliable light source, crucial for maintaining a well-lit and safe workspace. Adaptability is a key facet of industrial LED lighting’s prowess in maximizing brightness. These lights can be tailored to meet the specific needs of diverse industrial applications. Whether it is a high-bay warehouse, a manufacturing floor or an outdoor industrial space, LED lighting systems can be customized in terms of color temperature, beam angles and intensity. This adaptability not only ensures that every nook and cranny of the workspace is well-lit but also contributes to creating an optimal working environment that enhances productivity and safety.\nMoreover, the controllability of LED lighting adds a layer of sophistication to brightness optimization. Advanced control systems allow for dynamic adjustment of light levels based on factors such as occupancy, time of day or specific tasks. This not only ensures that the right amount of light is delivered where and when it is needed but also contributes to additional energy savings. The integration of smart lighting technologies further elevates the potential for brightness optimization, allowing for remote monitoring, maintenance alerts and the implementation of lighting scenes tailored to specific operational requirements. In conclusion, the pursuit of unparalleled workplace illumination through the maximization of brightness finds its zenith in industrial LED lighting. The combination of luminous efficacy, durability, adaptability and controllability makes LED sparklighting a transformative force in industrial settings, enhancing visibility, efficiency and the overall quality of the work environment. As industries increasingly prioritize both productivity and sustainability, the radiant glow of LED lights emerges as the beacon guiding the way to a brighter and more efficient future.","domain":"optical_engineering"}
{"url":"https://www.cyberbiznes.com/COMPANIES/EWA-GANO/115241/","date":"2023-04-01T07:32:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949701.56/warc/CC-MAIN-20230401063607-20230401093607-00692.warc.gz","language_score":0.895951509475708,"token_count":333,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__36856125","lang":"en","text":"ANNIHILATOR UVC LED HYBRID LIGHTING is the only one on the market and the first one in the world of Polish production of modern, professional ceiling-mounted and hybrid LED downlight disinfection luminaires. The luminaires are available as recessed or ceiling mounted luminaires. Each luminaire is equipped with two LED modules: LED COB and LED UVC.\nThe LED COB module is responsible and intended for energy-efficient room lighting. The UVC LED module is responsible for the professional UV light disinfection of surfaces from any pathogens present such as: viruses, bacteria, mites, algae, unicellular fungi, mold, pathogenic micro-organisms, and air. Both modules work alternately in lighting and disinfection mode. Thanks to this device, the effectiveness of pathogen control is incomparably greater and more dynamic than that of flow-through UV disinfection lamps and ozonizers.\nProduct professionalism includes: Top quality UVC LEDs, quartz glass shutter, no toxic mercury or harmful ozone, control via on/off switch or remotely via Bluetooth app without router, replaceable LED modules, power supply, HULLCS® driver - proprietary product and more.\nThe effectiveness of Annihilator in the field of light disinfection has been confirmed by national and international studies.\nInstallation of the system is particularly recommended in places with a significant daily flow of people, e.g.: office buildings, hospitals, clinics, offices, shop centers, railway stations, restaurants, educational establishments, kindergartens, etc.\nWe welcome all reliable contractors for long-term cooperation.","domain":"optical_engineering"}
{"url":"http://gunmart.blogspot.com/2012/03/sightmark-introduces-their-first-35mm.html","date":"2017-04-24T23:06:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119995.14/warc/CC-MAIN-20170423031159-00213-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8937504887580872,"token_count":314,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__153390107","lang":"en","text":"Sightmark Triple Duty 6-25x56 35mm Riflescope\nMansfield, TX-March 26, 2012-The Sightmark 6-25x56 35mm Triple Duty Riflescope uses cutting edge glass, increasing clarity and making it one of the best riflescopes on the market. Its fully multi-coated optics transmits a bright and crisp picture that makes tracking and shooting targets quick and easy. The 6-25x56 features a one-piece 35mm tube that has a 120 MOA range. The Sightmark 6-25x56 35mm scope features ¼” MOA clicks and an internally lit glass etched reticle, which works better for dusk and low light conditions, as only the reticle is illuminated, creating contrast between the reticle and target.\n“This scope was designed for shooters taking long range shots from 500 to 1,000 yards, who need a scope that has maximum MOA adjustment range and light transmission to dial in and make precision shots,” said James Sellers, president of Sightmark.\nO-ring sealed and nitrogen purged, the 6-25x56 is both fog proof and water resistant. This precision scope features a parallax adjustment knob and oversized, locking windage and elevation turrets, providing an additional level of accuracy and ensures that the scope stays zeroed.\nThe Sightmark 6-25x56 35mm Triple Duty Riflescope is available in duplex, circle dot and mil-dot-dot rectiles.","domain":"optical_engineering"}
{"url":"https://mobipc.eu/fw/infolink.pl?1318634580140","date":"2024-04-22T20:00:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818337.62/warc/CC-MAIN-20240422175900-20240422205900-00860.warc.gz","language_score":0.8823551535606384,"token_count":529,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__165274901","lang":"en","text":"Flir Announces Industry-First Deep Learning-Enabled Camera Family\nFLIR today announced the FLIR Firefly® camera family, the industry’s first deep learning inference-enabled machine vision camera. The FLIR Firefly, which integrates the Intel® Movidius™ Myriad™ 2 Vision Processing Unit (VPU), is designed for image analysis professionals using deep learning for more accurate decisions, and faster, easier system development.\nTraditional rules-based software is ideal for straightforward tasks such as barcode reading or checking a manufactured part against specifications. The FLIR Firefly combines a new, affordable machine vision platform with the power of deep learning to address complex and subjective problems such as recognizing faces or classifying the quality of a solar panel.\nThe FLIR Firefly leverages the Intel Movidius Myriad 2 VPU’s advanced capabilities in a compact and low-power camera, ideal for embedded and handheld systems. Machine makers can load their trained neural networks directly onto the Firefly’s integrated VPU. Additionally, Intel Movidius Neural Compute Stick users can easily deploy their existing networks directly onto the Firefly. This unique design reduces system size and improves speed, reliability, power efficiency, and security.\n\"Automated analysis of images captured by machines is a key part of our day-to-day lives that few of us think about,\" said James Cannon, President and CEO of FLIR. \"The quality, affordability, and speed-to-market of items like our smartphones or the food on our tables are made possible by systems using cameras doing both inspection and automated production. With the FLIR Firefly powered by Intel Movidius Myriad 2 VPU, we are enabling the designers of these systems to leverage deep learning faster and at lower costs.\"\n\"The Intel Movidius Neural Compute Stick enabled FLIR to rapidly prototype, streamlining the early development of machine learning in the Firefly,\" said Adam Burns, Director of Computer Vision Products at Intel. \"Now the FLIR Firefly uses the compact, efficient Intel Movidius Myriad 2 VPU to perform real-time inference in the camera, without compromising the amazing levels of miniaturization that FLIR has achieved in this device.\"\nFLIR will demonstrate a preview of the Firefly camera at the VISION conference in Stuttgart, Germany, in the FLIR booth (Hall 1, Stand 1B42).\nMore informations available on web pages: http://www.crijolanta.com.pl","domain":"optical_engineering"}
{"url":"http://tera7580doublog.blogdon.net/two-important-items-individuals-do-definitely-not-appreciate-referring-to-lasik-eye-surgical-treatment-6998220","date":"2018-12-18T14:08:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376829399.59/warc/CC-MAIN-20181218123521-20181218145521-00301.warc.gz","language_score":0.9543149471282959,"token_count":878,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__38473087","lang":"en","text":"Two Important items Individuals Do Definitely Not Appreciate Referring To LASIK Eye Surgical TreatmentThe eye can be examined with relative ease regarding both its function and its structure. A practical examination includes the ability to relocate the orbit and the reaction of the pupil to light and lodging.\nThe function of the eye might be tested in numerous methods. The client may be asked to determine illuminated letter or items of varying sizes on what is referred to as the Snellen chart.\nAlternatively, the examination of the structural part of the eye might be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In certain diseases, particularly in glaucoma, the stress in the eyeball is increased markedly.\nHowever, it ought to be well kept in mind that a patient with an eye problem might have other problems too. Typically other physical conditions are main and impact the eye as a repercussion. The appearance of the eye can inform the client and the physician to difficulties in some disturbances of other parts of the body even before other symptoms provide themselves.\nOne's reliance on sight is emphasized when one faces a temporary or possible irreversible loss of this crucial sense. Thus, when restorative procedures are looked for, particular kinds of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some individuals are troubled with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were established to encourage decreased utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgical treatment.\nEssentially, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another kind of vision correction. The only difference is that with this kind of surgical treatment, one's vision is remedied completely.\nWith LASIK eye surgery, the refractive errors in the cornea are completely changed. This can be done using an \"excimer laser.\"\nThe main function of this surgery article is to create a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgery, there are still disadvantages that individuals must understand. Probably, the primary reason that this type of eye surgical treatment has become well accepted is because the majority of its cases had actually her latest blog been effective.\nIn spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is one of the most delicate portions of the eye, the majority of people say that the operation can be really risky.\nIn other words, a easy mistake could almost cause an person's life time blindness. Thus, it is essential to consider many aspects before choosing whether LASIK eye surgical treatment is the ideal corrective measure one has to go through.\n2. It is not a perfect procedure\nLASIK eye surgery might remedy your vision but it does not always imply that it can provide you a perfect vision. Even if statistical reports show that 70% of the clients may have 20/20 vision, this does not necessarily suggest they have ideal vision.\nProvided all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgery the method a lot of people view it\nAlternatively, the examination of the structural part of the eye may be made in numerous methods. It should be well remembered that a patient with an eye issue may have other problems. Frequently other physical conditions are main and impact the eye as a repercussion. The look of the eye can signal the patient and the physician to troubles in some disruptions of other parts of the body even prior to other signs provide themselves.\nLike its concrete equivalent, LASIK eye surgical treatment is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://factorypure.com/products/bushnell-equinox-z-2-x-40mm-binoculars-with-digital-night-vision-weather-proof-new","date":"2023-06-03T18:05:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649302.35/warc/CC-MAIN-20230603165228-20230603195228-00216.warc.gz","language_score":0.8426178097724915,"token_count":421,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__282087295","lang":"en","text":"Bushnell Equinox Z 2 X 40mm Binoculars With Digital Night Vision Weather Proof New\n|1 year factory warranty|\n|Brand new in box|\n|Ships directly from TX|\n|Authorized Bushnell dealer|\n|Ships out same or next day|\n- Bushnell 2x40 Equinox Z Digital Night Vision Bi-Ocular (Matte Black)\n- Soft Carry Case\n- Neck Strap\nNightVision - 2x40 Equinox Z Digital BinocularsManufacture ID: 260500Equinox Z Digital Night Vision from Bushnell offers outstanding optical clarity, ultimate illumination and an unmatched field of view. Features such as zoom, image capture, video recording and daytime color team with their super-charged digital NV technology. Other bar-setting features include a long battery life, tripod-mounting capabilities and glass objectives. Plus, they all feature an extra-durable housing.\n- 2 x 40mm\n- Built-in IR for digital night vision\n- 500ft viewing range\n- Water-resistant (IP4X)\n- Includes image capture, video recording, daytime color & zoom\n- 2 Year Warranty: $39 In-home Repair/Replacement\n- 3 Year Warranty: $59 In-home Repair/Replacement\n- 5 Year Warranty: $99 In-home Repair/Replacement\nTo add a warranty, click on one of the warranty options listed below the product pictures above, and then click the green \"Add to Cart\" button at the top of this page. This will add both the warranty and the product to your cart. You will receive a separate confirmation email from warrantylife.com within a few hours.\nIf there is no repair center near you, WarrantyLife will pay for all shipping costs associated with replacing the unit for you. The warranty covers only problems that arise affecting the unit's functionality, and not any kind of cosmetic issues.","domain":"optical_engineering"}
{"url":"https://www.ask.com/web?q=How+to+Make+Night+Vision+Goggles%3F&o=2602&l=dir&qsrc=3139&gc=1","date":"2017-10-24T02:55:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187827853.86/warc/CC-MAIN-20171024014937-20171024034937-00727.warc.gz","language_score":0.8388279676437378,"token_count":239,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__202483997","lang":"en","text":"A night vision device (NVD), also known as night optical/observation device ( NOD) and night vision goggles (NVG), ..... Jump up ^ Orrick, Dave (2016-03-29). \" Would night vision make coyote hunting safer? Divisions arise.\". Pioneer Press.\nAlways dreamt of buying night vision goggles or making some well you are soon going to come to terms with it basically as the name suggest it allows you to ...\nLearn how to make night vision goggles at home. Ignore all the technical jargon and just have fun with these easy to follow projects. Great for all ages.\nThere are several versions of educational night vision viewers and toy spy binoculars available on the market for kids and...um...well, geeks like me. They utilize ...\nDec 18, 2012 ... Simple Night-Vision Goggles. Build a simple night-vision headset that uses almost invisible near-infrared light to see in pitch-black darkness.\nNight vision goggles are awesome, but the price? Not so much. Luckily, you can make your own pair that will have you sneaking up on your friends in just a few ...","domain":"optical_engineering"}
{"url":"http://kracht-jong.fun/4024302345/1292/high-speed-camera-500-fps.html","date":"2021-03-03T11:54:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178366959.54/warc/CC-MAIN-20210303104028-20210303134028-00027.warc.gz","language_score":0.7458184361457825,"token_count":1561,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__75469197","lang":"en","text":"High speed camera 500 fps\nO.a. High speed camera's tegen lage prijzen. Bestel hier digitale camera's 1280 x 1024 at up to 510 fps 1280 x 1024 at 365fps, 15min ISO-3,200(mono)/ 1,600(color) Up to 30min of recordin Looking for an affordable HD camera that captures crisp Slow Motion Video? I have compiled my researched of the best high speed cameras I found from the most. Tiny fps1000 high-speed camera boasts 18 What's more logical about 500 fps or 1000fps? Presumably the speeds are the optimal framerates for that.\nGav of The Slow Mo Guys made this interesting video comparing different high-speed camera frame rates. Using a Phantom HD camera, he films coffee mugs. The M-3 features a 1.3 megapixel sensor delivering over 500 fps via a standard Camera Del Imaging Systems StreamView is a high-speed camera.\nCamera High Speed – weitere Infos - Millionen Benutzer weltwei\n- USB3 Vision camera model with CMOSIS CMV300 sensor - VGA at 500 Fps . XIMEA Ships High-Speed USB 3.0 Camera . This week, XIMEA, a premier supplier of standard USB3.\n- The high speed physics of violence, Teapot smashing, recorded at 840 fps. The FPS1000 slow-mo camera, complete with included 50mm f/1.4 lens\n- High Speed camera equipment for slow motion capture applications requiring very high frame rates and fast digital image capture (500 fps-1280x1024) Max memory\n- Our high speed, low cost fps series cameras are small, light and portable and packed with a host of unique features, including long record times\nhigh speed camera - Groot aanbod camera's online\n- A high-speed camera is a device capable of capturing moving recording at 1500 fps, were replacing the 35mm and 70mm high speed film cameras used on tracking.\n- Full movie! 1000000000000 (1 Billion/Trillion) FPS!!! Ultra High-Speed Camera (Licht/Light) HD 720p! 1 Frame = 1.71 picoseconds More Informations\n- Find great deals on eBay for High Speed Camera in Ximea MQ003MG-CM Camera Mono CMOS USB3 High Speed 500+ FPS. IDT Motion Pro X3 high-speed camera 1000 FPS.\n- High speed cameras for slow motion analysis. Materials Testing, Fluid Dynamics, Combustion Studies, Automotive, Aerospace, R&D, Crash Test, weldin\n- The new Cyber-shot cameras, The high speed signal processing and DRAM memory chip work together to enable Sony New Cameras Capture Video at 1000 fps\nMegapixel Up To 500 FPS - High Speed Camera Product\nKron Technologies is raising funds for Chronos 1.4 High-speed Camera on Kickstarter! A REAL high-speed camera you can actually Electronic shutter from 1/fps down. What is the fps1000? The fps1000 is a high speed camera. It records video at a much higher speed than normal video cameras which allows it to capture motion than. High speed cameras for slow motion analysis. Materials Testing, Defense, Industrial, Academic Research, Fluid Dynamics, Welding, Combustion Studies, Automotive. Bring your slow motion game up to speed with this roundup of high frame rate cameras that won't deplete your life savings. It seems that almost every.\n8 Best High Speed Cameras - Full HD Slow Motio\n2048 x 2048 at up to 1,080 fps 4GB, 16GB, 32GB 16.7ms - 2.8µs exposure time ISO-4,000(mono)/ 1,250(color Info over high speed camera 1000 fps. Resultaten van 8 zoekmachines\nPortable system for capturing high speed video with two cameras at up to 500 fps per camera. Provides looping capture capability with event markers Exploring Frame Rates and Resolutions on a Phantom Flex High Speed Camera - Video Blog Pissing off Airsoft Cheaters with 500 FPS Sniper Headshots. De high-speed camera is gemaakt door één ingenieur de zeer gefascineerd is door de beelden die slow-motion filmpjes opleveren,.\nFastec high speed cameras for machine troubleshooting, bottling, packaging, pulp & paper, microfluidics, animal locomotion, sports, mining, commercial video Hi speed camcoder. 500 frames per second high speed camera. Linux high speed camera with megapixel resolution. HOME. PRODUCTS. at frame rate 500 fps. . With the broadest range of cameras available in the market Phantom cameras excel at. We have High speed cameras, High speed image streaming leaves no wish open in regards of resolution and framing speed.: 1920 x 1080 pixel up to 2800 fps. De high speed camera systemen worden wereldwijd door toonaangevende bedrijven en instituten op gebied van onderzoek en (fps), 4 megapixel camera's,.\nHigh fps camera. This is a high fps megapixel camera system, based on a CMOS image sensor with global electronic shutter. Camera has a high-speed, scalable. Use these custom Fiber Optic cables to extend the reach of any high speed USB 3.0 camera far USB 3.0 800x600 Color Cameras 120 FPS or 500 FPS. Extreme Speed.\nTiny fps1000 high-speed camera boasts 18,500fps - DPRevie\n- Slow Motion Comparison: 500, 1000, 2500, 5000 and 10000 FPS - PetaPixe\n- High Speed Imaging Cameras & Systems DEL Imaging SystemsDEL Imagin\n- XIMEA - XIMEA ships world's first 500 fps USB 3\n- FPS1000: The low cost, high speed slow-mo camera\n- High Speed Cameras - Fast cameras for slow motion captur\nThe Slow Motion Camera Company - Low Cost High Speed Camera\n- High-speed camera - Wikipedi\n- 1.000.000.000.000 (1 Billion/Trillion) FPS!!! Ultra High-Speed Camera ..\n- High Speed Camera eBa\n- Photron High Speed Cameras for Slow Motion Analysis, FASTCAM, MINI, Mult\nSony New Cameras Capture Video at 1000 fps by Jose Antunes - ProVideo\n- Chronos 1.4 High-speed Camera - Kickstarte\n- The low cost high frame rate camera - Kickstarte\n- High Speed Cameras - Your rugged partne\n6 Slow Motion Cameras You Can Afford - PremiumBea\n- Megapixel 1,000-5,000 FPS - Motion Engineering Company High Speed Cameras\n- High Speed Camera 1000 Fps - Vinden\n- High Speed portable troubleshooting camera capture system at 500 fps\n- Exploring Frame Rates and Resolutions on a Phantom Flex High Speed\n- De FPS1000 is een betaalbare slow-motion camera Gadgets Magazin\n- High speed cameras for industrial & research - Fastec Imagin\n- High speed camera: 500 frames per second at 1280 x 1024\nPhantom High Speed\n- Check out our cameras - MC-S - Your rugged partner - High Speed Cameras\n- Netherlands - Photron High Speed Cameras for Slow Motion Analysis\n- High fps camera: 500 fps at 1280 x 1024\n- High Speed Video Cameras for Sports - allsportsystem","domain":"optical_engineering"}
{"url":"http://blog.freemanoutfitters.com/?p=29","date":"2017-04-29T05:25:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917123276.44/warc/CC-MAIN-20170423031203-00084-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9185912013053894,"token_count":314,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__301456603","lang":"en","text":"The Redfield Revolution Rifle Scope is an incredible value. Priced from $129.99 – $219.99. It’s manufactured by Leupold here in Oregon, USA and is backed by Leupolds legendary lifetime warranty. You’re getting a Leupold quality scope for a lot less money. We spoke with Leupold and were told that the Redfield Revolution is very similar to the Leupold Rifleman Series Scope. It is available in 2-7x33mm, 3-9x40mm, 3-9x50mm, 4-12x40mm with the option of an Accu-Range Reticle or a 4-Plex Reticle. The Redfield Revolution is 100% waterproof and 100% Fog Proof and ready to hunt.\nThe Redfield Revolution has the Accu-Trac Adjustment which provides Precision, stainless steel, 1/4-MOA finger click adjustments allowing you to quickly and easily zero your rifle on the range, and confidently correct for windage or elevation in the field. When combined with Redfield’s exclusive Accu-Range™, you can quickly zero and place shots right on the money, even at long range.\nThe Redfield Revolution is also excellent in low light hunting situations. The Illuminator Lens System is a combination of premium lenses and vapor deposition, working together with dielectric coatings to deliver exceptional light transmission in the low-light.\nAdditional information can be found at Redfield.com.\nAuthor: Brian Freeman","domain":"optical_engineering"}
{"url":"https://7store.se/elscooter-usb-kabel-iphone-airpods-tradlosa-telefo/pimento-dynamo-taillight-and-reflector","date":"2023-11-29T00:10:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100016.39/warc/CC-MAIN-20231128214805-20231129004805-00024.warc.gz","language_score":0.828269362449646,"token_count":120,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__92568930","lang":"en","text":"Spanninga Pimento rear light and reflector Go safely down the street with this set of Spanninga. The set contains a rear light and a reflector. The rear light is easily attached to your luggage carrier with the supplied bracket. The taillight can be seen up to 400 meters. Specifications: Color: red Material: plastic Dimensions rear light: 6 x 1 cm (L x W) Reflector dimensions: 8 x 2 cm (L x W) Lighting type: LED The rear light works on a dynamo The rear light can be mounted on a luggage carrier.","domain":"optical_engineering"}
{"url":"https://snowhitescreen.en.alibaba.com/product/60709908199-0/SNOWHITE_90_16_9_Format_SM090CFH_C_V_long_Focus_4K_3D_Fixed_Frame_Ambient_Light_Rejection_Projection_Screen.html","date":"2018-09-24T17:02:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267160620.68/warc/CC-MAIN-20180924165426-20180924185826-00184.warc.gz","language_score":0.7797260284423828,"token_count":269,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__125979367","lang":"en","text":"Long Focus Fixed Frame Ambient Light Rejection Projection Screen\nRoHS, ISO9001:2008 CE ROHS ETL\n5000 Piece/Pieces per Month\nPackaging & Delivery\nIn-house standard cartons.\nShanghai / Shenzhen / Hongkong Port\nShipped in 15 days after payment\nFixed Frame Long Focus Ambient Light Rejection Projection Screen\n90-inch Diagonal, 16:9 Aspect Ratio, 65mm (2.6”) frame covered black velvet. The screen is processed by special craft to achieve high gain and imagery quality, and the screen provide a high-performance, high-contrast and wide viewing angle for 4K 3D movies.\nl.Adopted 65mm edge frame. The Narrow edge frame material and simple design, make the screen looks upscale-luxury.\n2. Ultra large viewing angle which insure that from any angle to watch the image without any optical shadows.\n3. With strong ability of ambient light rejection, comparing with the common diffuse reflection white screens, it increase the contrast 100%.\n4.Taking advantage of diffuse reflection, special handling to the screen surface which make the screen smooth, bright and clean.\n5. In the bright and large space room, the screen can keep vivid color and image.","domain":"optical_engineering"}
{"url":"http://www1.gangnongzhong.com/news/30547.html","date":"2023-03-29T16:52:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949009.11/warc/CC-MAIN-20230329151629-20230329181629-00520.warc.gz","language_score":0.9343286752700806,"token_count":390,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__262361923","lang":"en","text":"Swiss border cities have installed link street lighting to detect traffic volume\nthrough the use of high-precision sensors to detect traffic flow, the link street lighting device in St. Gallen, Switzerland, can significantly reduce energy consumption\nlocal urban engineers can manage all lighting equipment in the pilot area through a web-based console. The operator can turn on or off the light, or adjust the light individually or in a designated group. At the same time, the ball screw can be adopted according to the time of day, and the lighting can be controlled with less driving power, one day of the week and/or the time of the year\nat the same time, the sensor integrated in the lamp provides autonomous control by detecting late night traffic\nby the end of July, OSRAM, a high-tech lighting manufacturer, and paraox engineering SA, a wireless sensor network technology company, were responsible for the pilot area. They predict that compared with traditional outdoor lighting technology, the new lighting device can save 65% energy\nat present, OSRAM has provided about 60 SL20 lamps, which have been installed along the local oberstrasse street\nthese LED lights are connected through paradox's wireless technology\nurs etter, head of public lighting of St. Gallen urban utilities, said, \"the negative use of energy and available resources is very important for an innovative city like St. Gallen.\"\n\"street lighting has a direct impact on the attractiveness of cities, so on the one hand, we have been seeking the best balance to save energy, emissions and money, on the other hand, to ensure the quality of life and public safety.\"\n\"we have been investing in LED system for many years, and we are proud to adopt this dynamic intelligent lighting solution, which will further improve our sustainability. 3. There is an experimental space to adjust the performance of institutions.\"\nCopyright © 2011 JIN SHI","domain":"optical_engineering"}
{"url":"https://www.lists.rdg.ac.uk/archives/met-jobs/2019-12/msg00073.html","date":"2020-09-22T12:00:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400205950.35/warc/CC-MAIN-20200922094539-20200922124539-00343.warc.gz","language_score":0.8037897944450378,"token_count":231,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__228247681","lang":"en","text":"|From||Roger Brugge <firstname.lastname@example.org>|\n|Date||Thu, 12 Dec 2019 10:53:08 +0000|\nResearch Assistant Position in Ocean Color Remote Sensing\nWe are seeking an outstanding researcher who has well-developed skills in the field of coastal ocean color remote sensing and optical oceanography. The candidate will be studying the inherent and apparent optical properties of the Arabian Gulf water using in situ and satellite observations. The optical properties vary with the wavelength of the light, depth, and time. These measurements can be utilized together with numerical models for finding the amount and type of materials, including living microorganisms, and sediments within the water.\nThe successful candidate will be based in Abu Dhabi (UAE) at Khalifa University. The individual in this position will work on satellite data from various ocean color satellite sensors and field measurements from ocean and atmosphere to develop, validate, and evaluate algorithms for the remote retrieval of the ocean color and atmospheric products.\nGo to: Periods · List Information · Index by: Date (or Reverse Date), Thread, Subject or Author.","domain":"optical_engineering"}
{"url":"https://shopsuperiorpress.com/products/panini-vision-x-1f-single-feed","date":"2023-12-04T06:05:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100525.55/warc/CC-MAIN-20231204052342-20231204082342-00382.warc.gz","language_score":0.8932579755783081,"token_count":184,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__158449802","lang":"en","text":"The Panini Vision X® is the most popular Low Volume check scanner on the market.\nThe Panini Vision X is the next generation check scanning platform designed specifically for distributed check capture. Incorporating the reliability, quality and performance of the market-leading My Vision X product suite, the Vision X provides advanced features with a strong commitment to backward compatibility and industry leading price/performance. Distributed capture industry leadership and the scale of an unparalleled installed base have enabled Panini to deliver a complete redesign of the My Vision X product suite.\nThe Panini family of check scanners is a best-in-class reliability for distributed capture based on our core competencies of system scalability, superior image quality, MICR read accuracy, flawless document handling, and professional services. Panini's distributed capture solution helps customers lower operational costs, protect investments, optimize return on investment (ROI), and enhance the customer experience.","domain":"optical_engineering"}
{"url":"http://www.center-laser.com/en/ophtalmology/procedures.html","date":"2019-04-24T14:33:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578643556.86/warc/CC-MAIN-20190424134457-20190424160457-00382.warc.gz","language_score":0.9221355319023132,"token_count":878,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__164303520","lang":"en","text":"TransPRK is a \"no-touch\" surface treatment. In PKR (photorefractive keratectomy) the laser ablates the surface of the cornea after mechanically lifting the epithelium (brush or spatula), the epithelium being the protective membrane of the cornea. For TransPRK, it is the no-touch excimer laser that performs this ablation prior to the refractive treatment, that is to say the vision correction treatment.\nThe operation is conducted under local anaesthetic with the use of eye drops a few minutes before the operation, which will numb the cornea. The patient is seated in a surgical chair that ensures perfect positioning beneath the laser. The use of a spreader maintains the eye in the open position without pain or risk.\nThe laser treatment lasts for around ten seconds. By removing a few microns from the surface of the cornea, it re-contours it and can correct the visual defect.\nAt the end of the operation healing drops are placed on the eye and analgesics are also prescribed.\nAdvantages: Its main advantage is safety.\nDisadvantages: The disadvantages lie in the painful phenomenon that can subside for a few days. In some cases, a haze can arise that can delay visual recovery. This haze is most often minimum, but in rare cases it can be fairly intense and can affect the vision for several months before recovery thanks to medicinal treatments.\nFemtoLASIK is an ALL LASER technique requiring 2 different lasers: the first, a femtosecond laser performs a cornea cap and the second the excimer laser is used for the visual correction.\nIn this method, the laser that corrects the vision is applied in the thickness of the cornea (not on the surface) after laser cutting a flap of corneal tissue, placed back at the end of the operation.\nThe operation is conducted under local anaesthetic with the use of anaesthetic eye drops a few minutes before the operation. The operation is conducted in an operating theatre with additional hygiene conditions required for cutting the cornea.\nA suction ring is placed on the eye so as to keep it immobile during the operation. The femtosecond laser cuts by photodisruption, a painless and accurate action. When the cutting is complete, the surgeon uses a surgical spatula to lift the cornea cap cut in this manner. The corrective laser procedure can then begin, and it is strictly identical to that of surface PKR.\nAt the end of the operation, the surgeon replaces the cornea cap without any sutures and natural healing plays its role in 2 to 3 minutes. A protective shell can be placed on the treated eye as the corneal flap/cornea connection nonetheless remains fragile for a few weeks.\nAdvantages: Visual recovery is rapid with a few hours being enough in most cases\nDisadvantages: A longer surgical operation, specific complications to laser cutting subsist, even if they are greatly reduced in comparison with mechanical cutting.\nPresbyMAX™ is a non-invasive treatment for presbyopia using the same lasers as for the treatment of myopia. The presbyopia treatment can be associated or not with the treatment of another visual pathology (myopia, hyperopia, astigmatism).\nIn contrast with traditional laser treatment (PRK or femtoLASIK), several areas of vision are operated on the eye, in a similar way to the principle of contact lenses or multifocal intraocular lenses.\nFor near vision, the central part of the cornea is sculpted, and for far vision the outer edge, with the transition zone providing intermediate vision. Both eyes contribute equally in providing visual acuity at all distances (in contrast with Monovision, which improves distance vision for the dominant eye).\nPatients with the greatest levels of satisfaction are those with presbyopia, followed by people with strong astigmatism, strong myopia, emmetropia (who have good sight without glasses) and weak myopia.\nExcimer and femtosecond lasers are class IIb medical devices (as per European classification).\nThese are regulated health products that carry EC marking pursuant to this regulation.\nThey are exclusively for use by doctors.","domain":"optical_engineering"}
{"url":"http://www.refrakcnicentrum.cz/clanek/en/17915/dictionary.aspx","date":"2017-04-27T09:01:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122041.70/warc/CC-MAIN-20170423031202-00373-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9277185201644897,"token_count":3703,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__108380055","lang":"en","text":"AMBLYOPIA ('lazy eye') - is a functional impairment manifested by lowering of visual acuity that originates in childhood mostly as a result of squint, high refractive error, anisometropia (i.e. high refractive difference between eyes) or other eye disorder such as congenital cataract and so on. Visual function of a child develops until 6 to 8 years of age and any obstacle in normal eye function in early childhood may alter the visual acuity and permanently weaken the eye. In practice it means that amblyopic ('lazy') eye is not able to achieve visual acuity such as of the healthy eye even with the best dioptric correction (glasses or contact lenses). That also limits the possible result of refractive eye surgery, which can fix only refractive error, but unfortunately not amblyopia.\nASTIGMATISM - Astigmatism is a refractive error caused by irregular curvature of the cornea or (less frequently) of the lens. The curvature and thus also the refractive power of the cornea or lens differs in different meridians (axes) and the resulting retinal image is again blurry and deformed. The error develops in childhood and is frequently combined with the basic errors - short-sightedness or far-sightedness. Astigmatism impairs vision both for distant and near objects and is corrected with cylindrical glasses or toric contact lenses. Slight degrees of astigmatism are physiological (the cornea is never perfectly regularly curved) and do not require optical correction.\nASTIGMATIC KERATOTOMY (\"incisions of the cornea\") - is a microsurgical method appropriate for the treatment (reduction) of higher astigmatism. The method consists in placing two arcuate incisions at the border of the cornea using a special diamond knife (blade). Varying the length, depth and location of the incisions the surgeon can achieve the required change of the corneal curvature and correct thereby the astigmatism. For higher degrees of astigmatism and combined refractive errors, a combination of this procedure with LASIK can be considered. As a first stage, the incisions are used to reduce corneal astigmatism, and the residual error is than approached - after the first incisions have healed and refraction has stabilised (about 6 months after the incisions) - with a laser procedure.\nCATARACT - is mostly acquired, less frequently congenital opacification of human lens. It is found usually in people 50-60 years old and older as a result of metabolic changes in human lens, but it can also appear as a complication of certain other ocular or general health disorders such as diabetes, the use of some drugs or ocular trauma. The correction of cataract is uniquely surgical. Cataract is extracted from the eye and replaced by an artificial lens, which is implanted into the remaining lens capsule.\nCLE (clear lens extraction) - represents another possibility of refractive error correction - especially in patients with higher hyperopia and over 40 years of age. The procedure consists of clear human lens extraction and its substitution by artificial intraocular lens in order to correct refractive error of the eye. The operation is performed similarly like cataract extraction. The most modern operation is the clear lens extraction associated with multifocal intraocular lens implantation; multifocal lens is artificial lens that can focus-up close and far at the same time.\nEPI-LASIK – The surface method of laser refractive surgery similar to the LASEK and PRK methods. The surface covering layer of the cornea is cut off using a special “epikeratome”. The laser surgery itself then removes a small layer of corneal stroma. At the end of the surgery, the epithelial flap is returned to its original place. Over the next few days, the epithelium will recover and regenerate. At the end of the operation, similar to the PRK method, it is necessary to cover the eye with a special contact lens to protect the eye during the first days of recovery and alleviate pain. The lens usually remains in the eye for four days. Most people feel pain associated with the healing of the eye surface during the first few days. Eyesight recovery is also longer as compared to the LASIK method. The sight will usually stabilize within several months.\nEXCIMER LASER - An excimer laser is a computerised system employing an ultraviolet light beam with a wave length of 193 nanometers. This radiation is used to model the surface of the cornea according to the refractive error present, and the new optical system of the eye can focus light beams closer to the surface retinal layers. Each single pulse of the excimer laser is capable of removing corneal tissue with an accuracy of 0.25 micrometers! Just for comparison, human hairs have a width of 50 micrometers. The precision of the excimer laser and the predictability of changes made in the surface curvature, as well as its safety, made the use of excimer laser procedures the leading method in refractive surgery.\nEYE-TRACKER - Eye-tracker is a control operating system, which optically fixes the patient's eye throughout the operation and thus prevents the undesired deviation of laser radiation. During the surgery, the position of the eye is permanently monitored and evaluated by automatic system, which then adjusts the direction of laser pulses according to eye movement evaluation and ensures the correct performance of the procedure. The modern generation of lasers uses highly effective system of eye-tracking, which enables very accurate removal of refractive error even in less compliant patients.\nFAR-SIGHTEDNESS - In far-sightedness (hypermetropia) on the other hand, the eye is too short, or the refractive power of cornea and lens is tow low. As a result of this disproportion, the beams of light meet \"behind\" the retina and the ensuing image is again blurry. The optical apparatus of the eye is capable of correcting this error, to a certain degree, by means of accommodation (through changes in the convexity of the lens). This possibility, however, is limited, and diminishes with increasing age. More severe refractive errors of this kind can manifest in childhood already, while a less severe error does not have to cause complaints till adulthood - the vision of a patient is then impaired for near objects, but can worsen also for distant objects as well later on. A plus (convex) glass is used in corrective glasses or contact lenses to correct this error.\nGLARE (starbusting, halo)\n- and halos around lights in dim lightning and at night (blurring and fogging of vision or scattering of light sources) are to some extent natural effects caused by pupil dilation in dim lightning and different refraction of light rays in central and peripheral portion of the cornea. This phenomenon is known by majority of patients that are using glasses or contact lenses and sometimes it may appear also following laser refractive procedures. The intensity of this phenomenon is related to the number of dioptries removed, optical zone width and pupil size. Combination of high refractive error, thin cornea and large pupils increases the risk of this phenomenon in postoperative phase - that is why every planned laser procedure has to be well evaluated.\n- is the possible complication of healing of the cornea following the PRK method. It involves the opacification of the cornea resulting from scarring due to impaired corneal epithelial basal membrane. Mild degree of haze does not usually affect the visual acuity, but moderate to severe degree of opacification may have negative impact on visual function. Therapy includes long-term application of steroid eye drops. Haze does not practically appear after the LASIK method.\n- viz Far-sightedness\n- is a disorder of corneal connective tissue; it is usually bilateral. The cornea of keratoconus patient is gradually bulging and thinning, so the dioptric power is decreasing. The disorder is first manifested as an increasing myopia, often in combination with higher and irregular astigmatism. Keratoconus can be diagnosed using the ORBOSCAN equipment that provides specialized examination of the cornea and reveals early stages of the disease. Keratoconus can be cured by rigid contact lenses; advanced stages must be treated by corneal transplant. Laser refractive procedures are contraindicated in keratoconus.\nLASEK – The surface method of laser refractive surgery which is, in fact, a variant of the older PRK method. The covering surface layer of the cornea, i.e. epithelium, is not fully removed but only prepared as a thin flap after the application of a special solution. The laser surgery itself then removes a small layer of corneal stroma. At the end of the surgery, the epithelial flap is returned to its original place. Over the next few days, the epithelium will recover and regenerate. At the end of the operation, similar to the PRK method, it is necessary to cover the eye with a special contact lens to protect the eye during the first few days of recovery and alleviate pain. The lens usually remains in the eye for four days. Most people feel pain associated with the healing of the eye surface during the first few days. Eyesight recovery is also longer as compared to the LASIK method. The sight will usually stabilize within several months.\nLASIK (laser-assisted in situ keratomileusis) - is a more recent and advanced method that is currently preferred at all leading centres where it is used to treat short-sightedness, mild and moderate far-sightedness, and astigmatism. The principle of the method consists in cutting away a narrow surface lamella of the cornea (most commonly 160 micrometers thick) and treatment of the tissue with laser after the lamella has been lifted off. After the deeper layers have been treated the lamella is returned back to its original site. It takes just a few minutes for the lamella to reattach and there is no need for sutures or covering the surface of the eye with a contact lens. The healing after the LASIK procedure is very rapid and practically without pain, the rehabilitation of vision lasts several days making an early surgery on the other eye possible, while the limitation of patient activities in the postoperative course is minimum. LASIK is thus a method that is more demanding in terms of its conduction, and demands also better technical equipment of the centre as well as higher degree of experience of the surgeon, but the high precision of the method, the good postoperative stability and painlessness of both the surgery and postoperative course explain why the method is preferred to PRK.\nMONOVISION – It is a technique used to correct dioptric defects in near-sighted patients in a presbyopic age group (i.e. patients over 45 who have different dioptres for distance and near vision). One eye retains a minor defect for distance vision (ca -1.5 dioptre) and will therefore see better to near distances while the other eye is fully corrected for distance vision. The resultant condition enables efficient vision to both long and near distances. However, as it may affect spatial vision, the simulation of the condition using contact lenses is recommended.\nMULTIFOCAL INTRAOCULAR LENS – an artificial intraocular lens which – unlike the conventional monofocal artificial lens – enables distance vision through the unique arrangement of optical zones of distance and near viewing, similar to multifocal glasses or contact lenses. It is used to correct dioptric defects particularly in patients in a presbyopic age group (over 45) when the natural human lens loses its elasticity and thus the ability to refocus to long and near distances (PRELEX,CLE).\nMYOPIA - viz. Short-sightedness\nPACHYMETRY (corneal thickness assessment) - is essential part of examination before the refractive laser procedure. Corneal thickness plays an important role in deciding how many dioptries can be safely removed in each patient. The measurement is most often performed by ultrasound following the previous topical drop anaesthesia. More modern and accurate method is the optical method using the ORBOSCAN equipment. This equipment allows the measurement of thickness of the cornea in all its area including the localization of the thinnest point. The assessment is non-contact, so there is no need for topical anaesthesia.\nPHAKIC LENS - Presbyopia is not a refractive error in the true sense of the word, but rather a manifestation of the physiologic process of ageing of the eye associated with a loss of its ability to accommodate - focus to near objects. This accommodative mechanism becomes gradually weaker starting already in childhood leading to the so-called near point becoming more and more distant (the near point is the point nearest to the eye at which an object is still accurately focused on the retina). Around mid-40s the distance of the near point shifts to a distance of about 35- 40 cm in front of the eye and the patient starts having difficulty reading or working with near objects. The error is corrected with plus \"reading\" glasses the dioptre value of which gradually increases with advancing age. The problem of presbyopia (i.e. the need to wear glasses for reading or work at a short distance after mid-40s) cannot yet be solved reliably with the current laser refractive procedures.\nPRELEX (Presbyopic Lens Exchange) – The replacement of a human lens for an artificial lens in order to correct dioptric defects in patients in a presbyopic age group (over 45) when the natural human lens loses its elasticity and thus the ability to re-focus to long and near distances. This operation is particularly suitable in patients who have different dioptres for vision to long and near distances. The surgery is identical to cataract surgery. The human lens is removed using an ultrasonic phacoemulsifying apparatus and an artificial lens is then inserted in the lens capsule. The optical power of the artificial lens is chosen individually according to the dimensions of the patient’s eye and the size of his/her dioptric defect to correct the defect in distance vision, or in near vision by using a multifocal artificial lens.\nPRK (photorefractive keratectomy) - is a method consisting in a modification of the curvature of the corneal surface after removing its surface cellular level - epithelium. The surface of the cornea is first anaesthetised using a topical anaesthetic administered in the form of drops and the epithelium is then removed; this is followed by the laser procedure carried out in the surface layer of corneal stroma. As the epithelium layer forms a protective cover without which the eye becomes rather sensitive and even painful, the cornea must be covered with a contact lens after the procedure. Regeneration of the covering epithelium layer occurs within several days but even so the first days of the healing process of the eye are accompanied by pain and fuzzy (blurred) vision. Definitive healing of the cornea and stabilisation of vision vary to a large degree and can be expected to take several weeks to months. At present, PRK is an alternative to LASIK and is used to treat mild and moderate forms of short-sightedness.\nPTK method (Photo-therapeutic keratectomy) – is a laser therapeutic procedure to treat corneal surface diseases, for example recurrent erosions, corneal scars, etc. The course of the procedure and postoperative recovery are similar to those for the PRK technique. The procedure is based on the laser ablation of corneal surface layers after the covering epithelium has been removed. The procedure is performed under local anaesthesia using anaesthetic eye drops, and takes about 5 minutes. Following the procedure, a therapeutic contact lens will be applied on the eye and it remains there for 3-4 days until the cornea has healed completely. The patient has to apply antibiotic drops over this period of time. The eye may hurt. After the removal of the therapeutic lens, the patient will continue to apply anti-inflammatory eye drops.\nSHORT-SIGHTEDNESS - In short-sightedness (myopia), the eye is too long, or the combined refractive power of the cornea and lens is to high. This disproportion causes the light beam to converge (meet) in front of the retina, and the ensuing image is blurry. The error most frequently develops at school age and progresses throughout growth and adolescence. The patient with short-sightedness has difficulty to see distant objects and has usually no problems with reading. This refractive error is usually corrected with a minus (concave) corrective glases.\n- or squint is condition in which the parallel position of eye globes is impaired. Mostly, it is a result of congenital or acquired functional defect of oculomotor muscles. Each patient suffering from this disorder should undergo specialized evaluation of strabismus. There is a certain connection between the position of eye globes and refractive errors. In some cases, refractive surgery may cause accentuation of squint along with the development of uncomfortable diplopia. The laser refractive procedure is not recommended in patients that appear to be at risk.\nWAVEFRONT – It is a diagnostic system based on the principle of a wave-front which enables us to perform individualized measurement of the eye’s optic properties and evaluate higher-order aberrations. In laser surgery, they help to make a complete and exact picture of the qualitative and quantitative condition of the eye’s optical apparatus, assess the quality of vision in the dark, and quantify the occurrence of visual side phenomena.","domain":"optical_engineering"}
{"url":"https://vector.edu.jm/professional-certifications/certified-fiber-optic-technician-levels-1-and-2","date":"2022-09-26T10:35:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334855.91/warc/CC-MAIN-20220926082131-20220926112131-00187.warc.gz","language_score":0.934096097946167,"token_count":634,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__219865435","lang":"en","text":"The Fiber Optic Association (FOA) is organized as an international non-profit professional society for the Fiber Optic industry. Its charter is to develop educational programs, certify Fiber Optic technicians, approve Fiber Optic training courses, participate in standards-making processes and generally promote Fiber Optics. The FOA has certified over 66,000 CFOTs (Certified Fiber Optic Technicians) through over 250 approved training organisations worldwide.\nVTI offers a number of courses that prepare you for sitting FOA Certification examinations. As an approved school with the FOA, all instructors are certified in the courses that they teach. At the end of each course, students are tested and upon successful completion, are awarded the appropriate VTI certificate. This certificate is locally recognised within the industry and is not a substitute for any of the FOA's international certifications. Candidates are required to register for FOA examinations separately. Examinations are proctored at VTI under the rules and regulations of The Fiber Optic Association.\nBasic Level Certifications:\n- CFOT® - Certified Fiber Optic Technician for general fiber optics applications. The FOA CFOT® is the certification for most Fiber Optic technicians. It is based on the knowledge, skills and abilities (KSAs) deemed necessary for all technicians involved in the installation of Fiber Optic networks and is recommended for anyone involved in the design or management of Fiber Optic communications systems. Most CFOTs work in the industry as contractors or installers. Consultants, network designers, estimators and trainers would also be expected to have such credentials.\nSpecialist Level Certifications:\n- Skills-based certifications are for CFOTs and are available in splicing, connectors, testing, OSP installation and Fiber characterizations. Related certifications include CFOS /S, /C, /T, /O and /FC.\n- Applications-based certifications (FTTH, OLANs, FTTA, Wireless, DAS and Data Centers) focus on the design and installation issues of each particular application and are aimed at a wider audience - users and managers overseeing these networks, designers and project managers, supervisors, as well as CFOTs involved in the installation. Related certifications include CFOS /H, /L, /A, /W, /DAS and /DC.\n- Fiber Optic network design - This is a specialist application certification covering Fiber Optic network design intended for network owners, IT personnel, facilities managers, network designers, estimators or technicians involved in the design or installations of Fiber networks. This course is especially recommended for network owners and planners who may not be familiar with the process of Fiber Optic network design as it can make their jobs easier and their projects better. Related certification is CFOS /D.\nFiber Optics Level 2 – This Advanced course covers the material and hands-on activities required for satisfying the skills and abilities aspects of the FOA CFOT® & CFOS/O certification assessments. Courses are typically conducted over 4 days. VTI certificate is awarded upon completion.","domain":"optical_engineering"}
{"url":"https://frendlypresents.com/moto-x30-pro-teased-with-3-focal-lengths-suitable-for-photographers/","date":"2022-12-03T02:17:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710918.58/warc/CC-MAIN-20221203011523-20221203041523-00609.warc.gz","language_score":0.9360949993133545,"token_count":427,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__280895543","lang":"en","text":"Moto X30 Pro teased with 3 focal lengths suitable for photographers\nMotorola has announced that its next flagship phone, the Moto X30 Pro, will come with a trio of camera focal lengths just suited for photographers.\nSafer WeiboLeading Chinese social network, Motorola has released a message confirming the name of the Moto X30 Pro, which is set to launch in July as the company’s highly anticipated flagship offering.\nThat name isn’t the interesting part though, especially since it’s likely to transition to the Moto Edge 30 Ultra for the Western version of the phone. What’s interesting is the post’s reveal of the Moto X30 Pro’s camera credentials.\nTaking inspiration from classic photography terminology, Motorola reveals that the phone will feature three cameras covering the 35mm, 50mm and 85mm focal lengths. Anyone who’s ever used an interchangeable lens camera will recognize these terms, but smartphone users are more used to zoom lengths.\nMotorola refers to the Moto X30 Pro’s 35mm camera (via translation) as its “humanistic eye”. This will be your standard smartphone camera.\nThen the 50mm is called “the eye of the human heart”. Think of it as the slightly magnified 2x view that most phones with a telephoto lens offer. In the world of photography, it is considered the ideal lens for street photography.\nFinally, the 85mm camera is called “Portrait Eye”, which will provide an even more pronounced telephoto effect. However, as noted here, in photography terms, this is considered the ideal focal length for portrait images.\nNotable by its absence here is a dedicated ultra-wide sensor. Is Motorola really going to ship a flagship phone without one? It’s a bold move if so.\nOther specs expected for the Moto X30 Pro (or Moto Edge 30 Ultra) are 125W charging, Snapdragon 8+ Gen 1 processor, 6.67-inch 144Hz OLED display and 200 main camera sensor. PM.","domain":"optical_engineering"}
{"url":"https://smellyann.typepad.com/you_and_me_against_the_wo/2012/02/information-about-eyecare-contact-lenses-zeiss.html","date":"2023-03-22T19:15:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944452.74/warc/CC-MAIN-20230322180852-20230322210852-00332.warc.gz","language_score":0.9166368246078491,"token_count":445,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__203045941","lang":"en","text":"Information About Eyecare & Contact Lenses: Zeiss\n18 February 2012\nIf you have vision-correction needs and would like more information about getting the most out of your next eyecare visit, please click here to find out more from Zeiss about the right questions to ask, what to expect, and how to get the best contact lenses to regain sharp vision. As someone who has worn glasses and/or contacts for the past 23 years, I found the information helpful and valuable, and I hope you will, too.\nSome key points for Individualized Vision:\n- Every eye is just as unique as a fingerprint. More than any other sensory organ, our eyes allow us to experience and perceive our environment. Carl Zeiss Vision understands the importance of taking individuality into account when rendering consulting and diagnostic services to people who wear glasses and of course, when producing lenses for them.\n- ZEISS spent years developing cutting edge technology to improve the experience of eyeglass wearers with Zeiss Individual®. It is the first progressive lens to integrate how your frames, face and prescription work together to create a one-of-a-kind lens that is precisely personalized for the wearer.\n- i.Profilerplus® by ZEISS is a diagnostic tool that analyzes the performance of eyes to a level of detail far beyond traditional methods. These measurements are used to create a customized i.Scription® lens that meets the unique vision needs of the individual more accurately than any previous technology. The result is sharper vision with better contrast and color perception.\n- Lens performance is also influenced by the accuracy of fitting within the chosen frame and on one’s unique face. The i.Terminal® by ZEISS measures such dimensions as pupillary distance, vision height of the eye, tilt of the eye glasses frame, distance between the eye and lens and the frame wrap to ensure that you receive the best possible visual experience from the ZEISS lenses.\nThanks for reading!\nDisclaimer: In exchange for this post, I received a Target gift card and Zeiss lens cleaning kit. All opinions expressed are, and will always be, my own.","domain":"optical_engineering"}
{"url":"http://szyht.com.cn/en/pdetails237","date":"2021-10-19T22:46:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585281.35/warc/CC-MAIN-20211019202148-20211019232148-00532.warc.gz","language_score":0.7047496438026428,"token_count":205,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__52120015","lang":"en","text":"FBT splitter 1x4\nProduct: FBT splitter 1x4\nType: ABS box type\nOperating wavelength: 1310nm, 1550nm\nConnector type: FC, LC, ST, SC ...\nCable diameter: 2.0mm\nCable length: 1meter\nFiber optic splitter is used to split a fiber optic beam into several beams at a certain splitting ratio.\nIt is an important passive device in passive optical network(EPON, GPON, BPON, FTTX, FTTH etc.)\n1. FBT, PLC splitter; SM or MM\n2. 1x2, 1x4, 1x8 ... 2x2, 2x4, 2x8 ... splitter\n3. Operating wavelength\n4. Splitting ratio\n5. Input and output fiber length, cable diameter, with or without connector (SC, LC, FC, ST ... )\n6. Steel tube type, ABS box type","domain":"optical_engineering"}
{"url":"https://engage.3m.com/nits","date":"2022-12-06T16:19:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711111.35/warc/CC-MAIN-20221206161009-20221206191009-00239.warc.gz","language_score":0.9137576818466187,"token_count":294,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__96394643","lang":"en","text":"Thanks to 3M science, makers of LCD smartphones can now offer consumers the same security and full-screen performance as premium OLED (organic light emitting diode) smartphones at a fraction of the cost with the new 3M™ Near Infrared Transmission System (NITS).\n3M NITS uses advanced, micro-thin 3M optical display films to allow fingerprint-reading optical sensors to be placed behind an LCD screen. This new-to-the-world technology unlocks better security with a full screen for mobile phones and other devices featuring LCD display systems.\nThis system can be used in tablets, notebook computers and other LCD devices to bring both biometric security and a full screen. Imagine forgetting your alpha-numeric password and relying only on your fingerprint or eye scan to log into your bank, your work and other applications that should be accessible only to you.\nSee how 3M NITS works and the benefits that manufacturers and end users can expect from the groundbreaking system.\nSee how the innovative 3M NITS films allow biometric sensors to work in an LCD device.\nGet an in-depth look from 3M display films expert Quinn Sanford at the differences between LCD and OLED displays, and how 3M™ NITS are enhancing screens in ways that weren’t possible until now.\nYour form was submitted successfully!\nAn error has occurred while submitting. Please try again later...\nThe brands listed above are trademarks of 3M.","domain":"optical_engineering"}
{"url":"http://www.lteq-microwave.com/luciol_instruments_otdr_v-otdr.html","date":"2023-10-01T16:17:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510903.85/warc/CC-MAIN-20231001141548-20231001171548-00513.warc.gz","language_score":0.8097695112228394,"token_count":318,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__232345523","lang":"en","text":"Find and characterize insertion loss, return loss, fiber loss, bend loss,\nfiber breaks (fault location) in:\n- Fiber assemblies\n- Fiber links (LAN)\n- Fiber patch-cords\n- Optical components\n- Optical sensors\n- Optical fibers\nContact LTEQ MICROWAVE with your requirements and let us find together the customized solution to your fiber optic measurement problem.\nLUCIOL INSTRUMENTS OTDER\nThe ν-OTDR is our highest resolution instrument. Sub-ns optical pulses and Luciol’s high speed detection technique make fiber optical testing with sub-cm resolution possible.\nThe high refresh rate of the instrument allows real-time monitoring of optical fibers.\nThe measurement is done in windows of 200 m or 800 m (depending on the type of detector). This window can be set to any user defined position up to a total measurement range of 40 km.\nThe ν-OTDR connects to an external PC via it’s USB interface. A user friendly software is provided.\nThe ν-OTDR is available as a custom system for almost all types of optical fibers and wavelengths, including for example Plastic Optical Fibers (POFs) at 650 nm, large core glass fibers, and all types of single mode fibers.\n- Sub-ns optical pulse-width\n- Sub-cm spatial resolution\n- 1 second refresh time\n- Lightweight instrument with standard USB interface\nfor more information : please contact us","domain":"optical_engineering"}
{"url":"https://ygcasting.com/the-evolution-of-fiber-optical-transceiver-a-journey-through-time/","date":"2024-04-17T15:41:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817158.8/warc/CC-MAIN-20240417142102-20240417172102-00409.warc.gz","language_score":0.9112949967384338,"token_count":488,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__171852764","lang":"en","text":"The History of Fiber Optical Transceiver\nFiber optical transceiver have revolutionized the telecommunications industry, providing high-speed data transmission over long distances. Let’s take a journey through the history of these remarkable devices.\nThe concept of using light for communication dates back to ancient times, but it wasn’t until the 1960s that the first practical optical transceiver was developed. Early versions used bulky and expensive components, limiting their use to specialized applications.\nIn the 1970s, advancements in semiconductor technology led to the development of the first solid-state fiber optical transceivers. These devices were smaller, more efficient, and more affordable, making them suitable for commercial use.\nAdvancements in the 1980s and 1990s\nIn the 1980s, the introduction of single-mode fibers and the development of more sophisticated laser diodes and detectors further improved the performance of fiber optical transceivers. This enabled higher data transmission rates and longer distances.\nDuring the 1990s, the adoption of standardized interfaces, such as the Small Form-factor Pluggable (SFP) and Gigabit Interface Converter (GBIC), made fiber optical transceivers more interchangeable and compatible with a wide range of networking equipment.\nIn recent years, advancements in technology have led to the development of smaller, more energy-efficient, and higher-speed fiber optical transceivers. The introduction of pluggable modules, such as the Quad Small Form-factor Pluggable (QSFP) and the Small Form-factor Pluggable Plus (SFP+), has further enhanced the flexibility and scalability of fiber optic networks.\nToday, fiber optical transceivers play a crucial role in various industries, including telecommunications, data centers, and enterprise networks. They continue to evolve, with ongoing research and development focused on increasing data transmission speeds, reducing power consumption, and improving reliability.\nIn conclusion, the history of fiber optical transceivers is a testament to the relentless pursuit of faster and more efficient communication technologies. These devices have transformed the way we transmit and receive data, enabling the seamless connectivity that is essential in our modern world.\nWant to know more information about our products , don’t mind to inquiry us pls. I’ll try my best to promote our future chatting.\nMore Products information pls go to Products Page","domain":"optical_engineering"}
{"url":"https://avesis.hakkari.edu.tr/yayin/f535103a-3b0d-4858-9220-1684948ca1bd/optical-and-structural-properties-of-manganese-sulfide-thin-films","date":"2024-04-25T04:31:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297284704.94/warc/CC-MAIN-20240425032156-20240425062156-00774.warc.gz","language_score":0.8819729089736938,"token_count":172,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__26935525","lang":"en","text":"Highly transparent crystalline manganese sulfide (γ-MnS) thin films were prepared on glass substrate by chemical bath deposition (CBD) method at room temperature (27 °C). The refractive index n(λ), extinction coefficient k(λ) and film thickness t are evaluated from spectrophotometric transmittance spectrum by using envelope method. The optical band gap of the film was estimated to be 3.88 eV. XRD measurements show that the MnS films are crystallized in the wurtzite phase and present a preferential orientation along the c-axis. The effect of trisodium citrate on crystalline films has been determined. The grain size of the film is estimated to be 29.8 nm using by the Scherrer's formula. © 2006 Elsevier B.V. All rights reserved.","domain":"optical_engineering"}
{"url":"http://bradleycooper.ru/what-are-multifocal-and-accommodating-lenses-7408.html","date":"2018-02-19T19:42:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891812788.42/warc/CC-MAIN-20180219191343-20180219211343-00797.warc.gz","language_score":0.8730563521385193,"token_count":530,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__32373841","lang":"en","text":"What Are Multifocal And Accommodating Lenses 7408 на сайте bradleycooper.ru\nTwo types, multifocal and accommodative IOLs, offer different focusing powers within the same lens. These IOLs reduce your dependence on glasses by giving you clear vision for more than one set distance. D7408J/98448. Carefully follow the handling, insertion, removal, cleaning, disinfecting, storing and wearing instructions in the Patient Instructions for O2OPTIX, AIR OPTIX AQUA, AIR OPTIX for ASTIGMATISM, and AIR OPTIX AQUA MULTIFOCAL Contact Lenses. • There are several types of multifocal lenses available today. Accommodating Intraocular Lenses. Accommodating IOLs are designed to function in a manner similar to your native lens. What Are Multifocal & Accommodative Lenses? What Are Multifocal & Accommodative Lenses? Multifocal lenses use multiple refractive zones built in rings to give patients distance and near vision. COVER FEATURE. Presbyopia. The pros and cons of multifocal and accomodating IOLs. By Enette Ngoei EyeWorld Staff Writer. ReSTOR lens Source: Alcon. ReZoom lens Source: Advanced Medical Optics. Crystalens Source: eyeonics. Multifocal intraocular lenses (MIOLs) represent a way to restore stereoscopic, multifocal vision surgically. It is the next logical step in the evolution of modern cataract surgery. This edition of Focal Points summarizes the latest information concerning MIOLs and accommodating IOLs (AIOLs) with... Multifocal and Accommodating intraocular lenses are artificial intraocular lenses (IOLs) that are designed to provide focus of both distance and near objects, in contrast to monofocal intraocular lenses which only have one focal point and correct distance vision. Decreased accommodative ability arises not only from anatomical but physiological aberration as well. Possible mechanisms that may contribute to presbyopia include decreased elasticity of Multifocal (3) and accommodating (4) intraocular lenses have become more and more popular recently (5). What are accommodative intraocular lenses (IOLs) and multifocal intraocular lenses (IOLs)? If an accommodating or multifocal IOL is used, then reading as well as distance vision may be improved.\nРолик : What Are Multifocal Lenses? | Specsavers Australia","domain":"optical_engineering"}
{"url":"https://www.kandsoptics.com/","date":"2024-04-14T11:06:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00658.warc.gz","language_score":0.8958823680877686,"token_count":237,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__5898944","lang":"en","text":"Thank you for choosing K & S Optics, Inc. for your Cylindrical Lenses and Flat Optics requirements.\nK & S Optics is located in Greene, New York and has been manufacturing the highest quality Cylindrical Lenses and Flat Optics since 1998.\nK & S Optics provides optical components to a wide variety of customers and industries. Our optics are used in applications ranging from manned space flight and chip manufacturing to scanning and medical instruments, as well as defense and scientific instruments.\nK & S Optics unique fabrication process and in-house tooling capabilities allow us to fabricate Interferometricaly tested Cylindrical and Flat Optics to your specifications in Prototype, R & D, short run, production and OEM quantities.\nK & S Optics works for you:\n* Custom Cylindrical Lenses and Flat Optics\n* Off the shelf stock optics\n* Quick turn around available\nClick on links below to visit these pages\nK&S Optics, Inc.\n25 Clinton Street\nPO Box 569\nGreene, NY 13778","domain":"optical_engineering"}
{"url":"https://www.amararajadesignalpha.com/optical-and-photonics","date":"2024-04-15T15:18:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817002.2/warc/CC-MAIN-20240415142720-20240415172720-00751.warc.gz","language_score":0.9256935119628906,"token_count":265,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__101527667","lang":"en","text":"Optoelectronics and Photonics\nOur primary area of expertise centers on design and development of Optoelectronics and Photonics circuits and systems. The domains we focus are Healthcare, Telecom and Defence. Within this realm, we excel in optoelectronics, optomechanical designs, and the development of miniaturized optical systems The expertise in optoelectronics packaging has led to our involvement in Transmit Optical Sub Assembly (TOSA) and Receive Optical Subassemblies and subsequently Transceivers. ,. The applications of these technologies are rapidly expanding, finding relevance not only in biomedical fields but also across a diverse range of industries, including consumer electronics, automotive technology, healthcare solutions, and industrial processes.\nPhotonics Integrated Circuit Packaging is another area of core expertise and very many initiatives undertaken with the support of research organisations.\nAmara Raja Design Alpha also supports R&D and government laboratories in industrializing their Proof of Concepts to rugged systems, integrating the optical, electronics and mechanical components. This solution will also take into account the thermal aspects, Ingress protection as well as regulatory compliance aspects.\nMicrowave Photonics is an area of interest at ARDA with experience in developing systems where the RF is modulated on Optical carrier and used for transporting RF signals to distances.","domain":"optical_engineering"}
{"url":"https://repository.kopri.re.kr/handle/201206/4102","date":"2020-06-02T15:27:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347425148.64/warc/CC-MAIN-20200602130925-20200602160925-00310.warc.gz","language_score":0.8650160431861877,"token_count":512,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__90481420","lang":"en","text":"Measuring arctic sea ice motion using high-spatial-resolution optical satellite image\nCited 0 time in\nCited 0 time in\n- Measuring arctic sea ice motion using high-spatial-resolution optical satellite image\n- Hyun, Chang-Uk\n- Issue Date\n- Hyun, Chang-Uk, Kim, Hyun-cheol, Kang, Sung-Ho. 2016. Measuring arctic sea ice motion using high-spatial-resolution optical satellite image. The 22nd International Symposium on Polar Sciences (ISPS). Korea Polar Research Institute, Incheon,. 2016.05.10-11.\n- Sea ice motion from low-resolution satellite sensors with feature tracking methods, e.g. maximum cross-correlation, has been widely used to monitor changes in sea ice covers. This study presents measuring arctic sea ice motion using high-resolution optical satellite images acquired on August 2014. The high-resolution optical images were obtained from Korea Multi-Purpose Satellite-2 and Korea Multi-Purpose Satellite-3 with the spatial resolutions of 1 m panchromatic (PAN) band and 4 m multi-spectral (MS) bands and 0.7 m PAN band and 4 m MS bands, respectively. The sea ice motion was retrieved using sub-pixel correlation strategy, and the measuring results were represented as N/S and E/W displacements. In addition, individual ice floe was able to be delineated using the combinations of the spectral characteristics and the shape metrics, e.g. area, perimeter and length of the ice floe, from the advantages of the high-resolution images. The sea ice motion was also analyzed using the delineated ice floes and shape based matching method. The measurement results were compared with drifting buoy data. The results are applicable to fill the gaps between sparce buoy data and the motions from low-resolution satellite data.\n- Conference Name\n- The 22nd International Symposium on Polar Sciences (ISPS)\n- Conference Place\n- Korea Polar Research Institute, Incheon,\n- Conference Date\n- Files in This Item\n- Can archive pre-print and post-print or publisher's version/PDF\nCan archive post-print (ie final draft post-refereeing) or publisher's version/PDF\nCan archive pre-print (ie pre-refereeing)\nArchiving not formally supported\nItems in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.","domain":"optical_engineering"}
{"url":"https://shopoutdooronline.com/product/bolle-anaconda-matte-mono-red-tns-fire/","date":"2023-12-08T03:49:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00821.warc.gz","language_score":0.9018223881721497,"token_count":192,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__160371904","lang":"en","text":"Bollé Anaconda Matte Mono Red TNS Fire Cat.3 Features:\nOLEO / HYDROPHOBIC Our oleo / hydrophobic outer coating makes it virtually impossible for foreign bodies to stick to the lens. It is available on all Bollé HD polarized glasses and glasses with Phantom lenses.\nANTI-FOG Unlike other anti-fog coatings, our AF coating is permanently resistant to fogging, but also to scratch and chemicals. It is applied to the lens (no spray, no dip coating) and retains its properties even after multiple washes and years of use.\nTHERMOGRIP® The temple ends, nose pieces and adjustable nose piece are made of our proprietary Thermogrip® material. Its hydrophilic properties make its grip increase when wet. This keeps the frame in place, even during extreme effort.\nSIZE: M 8 BASE 64/35/17/125","domain":"optical_engineering"}
{"url":"https://www.m-stirling.com/What-s-special-about-LED-heat-sink-id62391817.html","date":"2023-12-09T21:55:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100972.58/warc/CC-MAIN-20231209202131-20231209232131-00894.warc.gz","language_score":0.9519301652908325,"token_count":511,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__163975463","lang":"en","text":"The LED heat sink is a critical component in the design of any LED lighting system. Its purpose is to dissipate heat away from the LEDs and protect them from damage due to overheating. A good heat sink design can significantly improve the performance and longevity of an LED lighting system. In this blog post, we will discuss what makes a good LED heatsink, the different types of materials used in their manufacture, and the benefits they can provide.\nWhat is the purpose of the LED heat sink\nHow does a LED heat sink work?\nThe benefits of using a LED heat sink\nWhen it comes to LED heat sinks, there are two primary purposes: first, to draw heat away from the LED junction; and second, to dissipate that heat into the surrounding environment. By dissipating heat, LED heat sinks allow LEDs to operate at lower temperatures, which in turn increases their efficiency and lifespan. In short, a heat sink is essential for prolonging the life and performance of your LEDs.\nA LED heat sink is a device that helps to cool leds by conducting heat away from them. By doing so, it allows the leds to operate at a lower temperature, which prolongs their lifespan and improves their efficiency. The most common type of LED heat sink is made from aluminum, which is an excellent conductor of heat.\nAs we know, LED heat sink has many advantages. First of all, it can help to improve the efficiency of heat dissipation. In other words, it can make your LED light bulb work better and last longer. Secondly, it is also helpful in terms of safety. If you are using an LED light bulb in a high-temperature environment, then a LED heatsink can help to keep the temperature down and prevent the risk of fire. Lastly, it can also help to reduce the cost of your electricity bill.\nLED heat sinks are an ingenious technology that ensure LED lights remain cool and last as long as possible. The combination of fans, radiators, and aluminum alloy material ensures LED lighting provides optimal performance while being energy efficient. With the increasing demand for lighting products with longer lifespans, LED heat sinks provide a perfect solution to this challenge and can be found in many different shapes, sizes, and applications. Investing in a quality LED heat sink is definitely worth considering if you want your lights to perform at their best for years to come. If you are looking for a supplier of high quality LED heat sink at a reasonable price , the m-stirling is a very good choice.","domain":"optical_engineering"}
{"url":"https://mmtron.com/optical-transimpedance-amplifiers/","date":"2022-05-26T07:46:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604495.84/warc/CC-MAIN-20220526065603-20220526095603-00214.warc.gz","language_score":0.7347412705421448,"token_count":406,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__6662303","lang":"en","text":"Optical Transimpedance Amplifiers\nMMICs for mmwave\nSiGe and InP Optical Transimpedance Amplifier MMICs for 400 Gbps, 600 Gbps, 800 Gbps and Beyond\nmmTron Optical Transimpedance Amplifier MMICs are multi-channel and designed for high reliability, high transimpedance gain and automatic gain control and ultra low noise. They are available in die format or surface mount (SMT) MMIC packages. mmTron custom Optical Transimpedance Amplifier MMICs follow space design guidelines and can be Space Qualified.\nmmTron custom Optical Transimpedance Amplifier MMICs offer excellent bandwidth, small size and low power dissipation for high data rate communication.\n- High Speed Optical Transimpedance Amplifiers (64 Gbaud)\n- High Speed Optical Transimpedance Amplifiers (96 Gbaud)\n- Coherent optical networking.\n- Telecom, metro and Data Center\n- Coherent Receivers\n- Coherent Transmit-Receive Optical Modules\n- SiGe and InP Technologies\n- High Sensitivity\n- High Gain\n- High Bandwidth\n- Built-in ESD\n- Pb-free RoHS Compliant SMT Packages\n- MSL Rating: MSL1\n- ESD Rating: Class 1A\n- Additional passivation and protection options available\nFor product data sheets, customization inquiries, and additional information, please specify the product model(s) and/or project requirements in your message.\nReliable Off-the-Shelf MMICs\nmmTron is the world’s leading provider of innovative mmwave linear power efficient broadband products. Our focus is on high-growth segments of mmwave markets: 5G, 6G, instrumentation, defense, satellite and aerospace communications.","domain":"optical_engineering"}
{"url":"http://canonsx280.com/","date":"2014-03-08T06:37:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-10/segments/1393999653669/warc/CC-MAIN-20140305060733-00057-ip-10-183-142-35.ec2.internal.warc.gz","language_score":0.8794780373573303,"token_count":697,"dump":"CC-MAIN-2014-10","global_id":"webtext-fineweb__CC-MAIN-2014-10__0__85521144","lang":"en","text":"You have a chance to get the best price new Canon SX280, dont loose the opportunity to get the best deals of Canon Sx280 with free shipping .\n>> Best Price of Canon Sx280 from Canon like this tend to SELL OUT QUICKLY <<\nbe sure to ORDER NOW to avoid disappointment, while stock available.\nThe PowerShot SX280 HS is a super-charged SX-series model featuring Canon’s very latest proprietary processor, the DIGIC 6 Image Processor, for improved performance and exceptional clarity in low-light scenarios. The camera makes it easy to show off your high quality images and video wherever you are, with enhanced built-in Wi-Fi® technology that lets you share photos with comments on social networking sites – even within specific groups.\nCanon SX280 Spesification\n- Canon’s powerful 20x Optical Zoom and 25mm Wide-Angle lens with Optical Image Stabilizer delivers stunning images from up close or at a distance.\n- 12.1 Megapixel High-Sensitivity CMOS sensor combined with the new DIGIC 6 Image Processor creates the Canon HS SYSTEM for improved low-light performance up to ISO 6400 and enhanced image quality.\n- Capture 1080p/60p Full HD video for high-quality capture of moving subjects.\n- Smart AUTO intelligently selects the proper camera settings based on 58 predefined shooting situations and Face ID function adjusts focus and exposure priority based on pre-registered faces.\n- h Built-in Wi-Fi® technology allows you to wirelessly transfer your images to social networking sites through CANON iMAGE GATEWAY#; to a PC or upload virtually anywhere on your iOS® or Android(TM) device* with the free download of the Canon CameraWindow app**. ** This software enables you to upload images to social network services. Before uploading images, please be aware that image files may contain privacy related information such as people and places. If necessary, please delete such information. Canon does not obtain, collect or use such images or any information included in such images through this software.\nOptical Image Stabilizer\nHandheld shooting can often lead to camera shake, making photos and videos blurry. Canon’s Optical Image Stabilizer is a sophisticated system that uses lens-shift technology to correct for unwanted camera movement. It makes handheld photography more practical, providing excellent image quality in many difficult shooting situations: outdoors at dusk, inside without a flash, and even at the telephoto end of the zoom range without a tripod. For photos, it enables shooting at slower shutter speeds, accommodating more low-light shooting situations than ever before without having to boost ISO sensitivity. With camera shake and vibration reduced, you get a sharper, steadier image. And because it is an optical system, there is none of the image degradation typical with electronic image stabilizers.\nThe PowerShot SX280 HS is equipped with enhanced built-in Wi-Fi® technology for on-the-go convenience when you want to share what you’ve recorded with friends, family and the whole world. The camera can connect directly to both iOS® and Android™ devices*, and upload images via the free Canon CameraWindow app** without a computer. Easily post your images to your favorite social networking sites through CANON iMAGE GATEWAY# or save them to the online photo album to share anytime, anywhere.","domain":"optical_engineering"}
{"url":"https://matbio.org/article.php?journ_id=16&id=175&lang=eng","date":"2024-04-18T12:54:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817206.54/warc/CC-MAIN-20240418124808-20240418154808-00838.warc.gz","language_score":0.8153769373893738,"token_count":195,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__74823928","lang":"en","text":"Applying Principal Component Analysis for Macromolecular Objects Diffraction Images Sorting\nTeslyuk A.B., Senin R.A., Ilyin V.A\nNational Research Centre «Kurchatov Institute», 123082 Moscow Russia\nAbstract. In this paper we present a method for fast detection of images containing diffraction patterns of specific macromolecular objects. Our method is based on a principal component analysis, a popular method used in a various areas to analyse multi-dimensional data like image classification, noise reduction, video indexing and etc. In our paper we demonstrate that our method is efficient for diffraction images classification for various macromolecular structures containing collagen. Diffraction data was gathered from Kurchatov synchrotron radiation source.\nKey words: images analysis, data clustering, principal component analysis, dimension reduction methods, macromolecular objects diffraction, diffraction images analysis, diffraction images classification.","domain":"optical_engineering"}
{"url":"https://dreyandersson.com/blog/apple-vision-pro-music-production/","date":"2023-10-03T22:49:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511284.37/warc/CC-MAIN-20231003224357-20231004014357-00614.warc.gz","language_score":0.9207420945167542,"token_count":1702,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__36648303","lang":"en","text":"Apple has recently introduced a groundbreaking device, the Apple Vision Pro Glasses. This mixed reality headset combines augmented reality (AR) and virtual reality (VR) to provide a unique user experience. But how could this technology impact the music industry, particularly music production? Let’s delve into it.\nThe Technology Behind Vision Pro Glasses\nDesign and Features\nThe Vision Pro Glasses are designed to look like a pair of ski goggles. They have a glass front and an aluminum frame, containing five sensors, 12 cameras, a display, and a computer. The headset mask and strap are cloth-lined and modular, fitting a variety of face shapes and head sizes.\nControl and Interaction\nThe device is controlled with eyes, hands, and voice. Users can browse rows of app icons by looking at them, tap to select and flick to scroll, and also give voice commands. The headset supports Bluetooth accessories including Magic Keyboard and Magic Trackpad and lets you connect your Mac to use inside the headset.\nDisplay and Performance\nApple promises that the display will be unprecedentedly sharp and can deliver 4K video. The system uses an M2, but it also includes a new chip called the R1. The device uses passthrough video that lets you see the real world in full color, but you can project 3D objects into real space.\nThe Vision Pro Glasses run on visionOS, a new operating system designed specifically for the headset. The visionOS is designed to make the most of the mixed reality experience, offering a range of applications and features that take advantage of the unique capabilities of the Vision Pro.\nThe Impact of Apple Vision Pro For Music Production\nImmersive Sound Engineering\nWith the Vision Pro Glasses, sound engineers could manipulate audio in a 3D space, providing an immersive experience for both the creator and the listener. This could revolutionize the way music is produced and consumed.\nThe Vision Pro Glasses could enable musicians and producers to collaborate in a virtual space, regardless of their physical location. This could lead to new forms of musical collaboration and innovation.\nReal-time Sound Visualization\nThe Vision Pro Glasses could provide real-time visualization of sound, allowing producers to see how different elements of a track interact with each other. This could provide a new level of understanding and control over the music production process.\nEnhanced Music Learning and Teaching\nThe Vision Pro Glasses could be used as a powerful tool for music education, providing interactive lessons and tutorials in a virtual environment. This could make learning music more engaging and accessible.\nA completely new way to work with DAW Software\nThe Vision Pro Glasses could significantly transform the workflow with different Digital Audio Workstations (DAWs). With the ability to control the device using eyes, hands, and voice, producers could navigate through complex DAW interfaces in a more intuitive and efficient way. For instance, they could potentially manipulate audio tracks, adjust parameters, or trigger samples with hand gestures or voice commands. Moreover, the glasses’ immersive visual display could offer a new dimension to sound design and mixing. Producers could visualize the spatial distribution of sounds in a 3D space, making it easier to create balanced and dynamic mixes. The Vision Pro Glasses could also facilitate collaboration in DAWs. Musicians and producers could work together in a shared virtual space, regardless of their physical location, leading to new possibilities for remote collaboration and live jamming. Overall, the integration of Vision Pro Glasses could make music production more interactive, immersive, and innovative.\n7 Other innovative ways how Apple Vision Pro glasses could be used for music\n- Live Performances: The Vision Pro Glasses could be used to enhance live performances. Musicians could use the glasses to control visual effects in real-time, creating a more immersive experience for the audience. They could also use the glasses to manipulate their instruments or DJ equipment in new and innovative ways.\n- Songwriting and Composition: The glasses could provide a new way of visualizing musical ideas, making the songwriting and composition process more intuitive. For example, musicians could “draw” melodies in the air or arrange musical elements in a 3D space.\n- Sound Design: With the Vision Pro Glasses, sound designers could work with sound in a more visual and tactile way. They could manipulate sound waves directly or use the glasses to interact with virtual synthesizers and effects.\n- Music Therapy: The glasses could be used in music therapy to create immersive, therapeutic soundscapes. Therapists could use the glasses to control the sound environment in real-time, tailoring the experience to the needs of the individual client.\n- Music Education: The Vision Pro Glasses could be a powerful tool for music education. Students could use the glasses to visualize musical concepts, such as scales, chords, or rhythms. The glasses could also provide interactive lessons and tutorials in a virtual environment, making learning music more engaging and accessible.\n- Audio Post-Production for Film and TV: The glasses could revolutionize audio post-production work for film and TV. Sound engineers could use the glasses to place sounds in a 3D space, creating more realistic and immersive soundscapes.\n- Virtual Reality Concerts: With the Vision Pro Glasses, musicians could perform in virtual reality concerts, providing a unique and immersive experience for the audience. The glasses could also allow musicians to interact with their audience in new ways, such as by manipulating the virtual environment in real-time.\nComparing Vision Pro Glasseswith Existing Technology\nWhile there are other AR and VR devices on the market, the Vision Pro Glasses stand out due to their unique features and capabilities. They offer a level of immersion and interactivity that is currently unmatched in the music production industry.\nPotential Challenges and Limitations\nDespite the potential benefits, there are also potential challenges and limitations to consider. These could include the high cost of the device, the need for specialized software and training, and potential issues with user comfort and accessibility.\nThe Future of Music Production with Vision Pro Glasses\nThe Vision Pro Glasses represent a significant step forward in the integration of AR and VR technology in music production. As this technology continues to evolve, it could lead to even more innovative and immersive ways of creating and experiencing music.\nThe introduction of Apple’s Vision Pro Glasses could potentially revolutionize the music production industry. By providing an immersive, interactive, and highly visual experience, these glasses could change the way music is produced, collaborated on, and even taught. While there are potential challenges and limitations to consider, the potential benefits of this technology are significant.\nFrequently Asked Questions\n- What are Apple’s Vision Pro Glasses?\n- The Vision Pro Glasses are a mixed reality headset introduced by Apple that combines augmented reality (AR) and virtual reality (VR) to provide a unique user experience.\n- How could the Vision Pro Glasses impact music production?\n- The Vision Pro Glasses could revolutionize music production by providing an immersive, interactive, and highly visual experience. They could change the way music is produced, collaborated on, and even taught.\n- What is unique about the Vision Pro Glasses?\n- The Vision Pro Glasses offer a level of immersion and interactivity that is currently unmatched in the music production industry. They also run on visionOS, a new operating system designed specifically for the headset.\n- What are some potential challenges and limitations of the Vision Pro Glasses?\n- Potential challenges and limitations could include the high cost of the device, the need for specialized software and training, and potential issues with user comfort and accessibility.\n- What does the future hold for music production with the Vision Pro Glasses?\n- As this technology continues to evolve, it could lead to even more innovative and immersive ways of creating and experiencing music.\n- What is the price of Apple’s Vision Pro Glasses?\n- The Apple Vision Pro Glasses are priced at $3,499.\n- When will the Vision Pro Glasses be released?\n- The Vision Pro Glasses are set to launch early next year, starting in the US market with more countries coming later in the year.\nIf you want to read more about the Apple Visioon Pro Glasses check out the official apple website","domain":"optical_engineering"}
{"url":"https://www.momentum98naturalhealthstore.com/collections/far-infrared-saunas","date":"2023-02-05T03:49:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500215.91/warc/CC-MAIN-20230205032040-20230205062040-00643.warc.gz","language_score":0.8282713294029236,"token_count":123,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__80613892","lang":"en","text":"Far Infrared Saunas\nRelax Far Infrared Saunas featuring the most advanced far infrared technology available. Most far infrared saunas only emit 40-60% far infrared while the Relax far infrared sauna emits 95-98% pure infrared energy.\nWe have both sit up and lie down models of the sauna.\nThey come with a 1 year warrant(but they can last 10+ years due to the very robust design of the far infrared emitters)\nWe ship to most countries in the World. The only exceptions are China, Hong Kong Taiwan and Singapore.","domain":"optical_engineering"}
{"url":"https://spexinthecity.com/en-us/products/hoya-lifestyle-3-varifocal-lens","date":"2023-09-27T19:16:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510319.87/warc/CC-MAIN-20230927171156-20230927201156-00683.warc.gz","language_score":0.8912954330444336,"token_count":1002,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__89540081","lang":"en","text":"Hoya - LifeStyle 3 Varifocal Lens\nHoya - LifeStyle 3 Varifocal Lens\nHere at Spex in the City we have a range of Hoya Varifocals for you to choose from\n*Bronze Varifocal* - Amplitude Trueform\n**Silver Varifocal** - Balansis\n***Gold Varifocal*** - Lifestyle 3\n****Platinum Varifocal**** - Mystyle & Myself (Please contact us for these lens)\nTailored to the patients' personal lifestyle, these customised progressive lenses offer highly accurate vision correction and significantly wider visual fields than conventional progressive lenses.\nLifeStyle 3/3i lenses provide clear, relaxed vision for all distances, as well as natural progression between near, intermediate and far. The iD Free Form Design Technology™ is used to provide wider viewing zones and eliminate the virtual blurring effects. With our unique Binocular Harmonization Technology™, the prescription for each eye is considered as an individual design component.\nBy taking into account individual wearing parameters, this lens design offers an even greater degree of personalisation.\nThe LifeStyle lens comes in 3 choices:-\n- LifeStyle Urban\n(Distance, Intermediate and Reading equal in soft focus areas)\n- LifeStyle Ourdoors\n(Distance soft focus area is smaller (Wider Vision) Reading & Intermediate soft focus bigger)\n- LifeStyle Indoors\nPlease state in order notes which lens you would like. If you need help you are welcome to contact us for more information.\n- Highly accurate correction for maximum visual acuity and a crisper image\n- Wider near and intermediate vision fields, ideal for reading and mobile device use\n- Natural, stable vision even when moving around\n- Two design variations to suit individual needs\nChoose from a range of different indexs (How thin you would like or need the lens)\nThen choose your coating\nFinally choose if you would like them clear lens, Tinted, Polarised or Reaction (Clear to tint when exposed to UV rays)\nHi-Vision LongLife is proven to be Hoya’s most durable anti-reflective coating. It guarantees exceptionally clear, relaxed vision while prolonging the life and look of the lenses.\nThe condition and performance of your lenses depend heavily on the quality of the coating. This is Hoya’s hardest, most durable anti-reflective coating. Its scratch-resistant, water, dirt and dust-repellent properties remain almost intact, even after intensive cleaning.\n- Longer lifespan of the lenses\n- Clearer, more relaxed vision thanks to glare reduction\n- Protection from accidental scratches\n- Easy cleaning due to water-, grease-, dirt- and dust-repellent layers\nHi-Vision Blue Control\nSmartphones, tablets, computers, televisions and GPS devices all emit blue light. Long exposure can lead to eye strain, eye fatigue and even sleeplessness. Our coating for digital lifestyles ensures a more relaxed vision and better ocular health.\nThis is a protective coating that reduces the blue light emitted by digital screens. It is the optimal solution for the large group of users who come into contact with digital screens throughout the day, including students, gamers, young professionals, office workers, and children. As well as protecting the eyes, the coating provides higher contrast and a more relaxed viewing experience.\nWhat’s more, our research* shows that when they are made aware of the harmful effects of blue light, 78% of patients find blue light control lenses attractive and 58% have the direct intention to visit an optician for more information. Accordingly, this coating offers you attractive new sales opportunities.\n*Millward Brown: Consumer attitude towards anti-reflective coatings. Research commissioned by Hoya Vision among 1,204 eyeglass wearers in six European countries, November 2012)\n- Enhanced contrast, improving clarity and color perception\n- Reduced glare for more comfortable and relaxed vision\n- Reduced blue light, preventing eye strain and fatigue\nHi-Vision UV Control\nUV rays can be harmful. It is the main cause of cataracts and other eye disorders and diseases. Almost all our lenses block UV rays from the front. With Hoya Vision UV Protection, you can offer complete UV light protection – front and back.\nAlthough many people are aware of the damage caused by direct exposure to UV rays, the dangers of indirect exposure and reflections are less well known. This protective coating is applied to the back of spectacle lenses, preventing UV rays from reflecting into the eyes. When combined with our lens materials that block UV rays from the front, it provides 100% protection from harmful UV rays.\n- Prevention of UV aging the eyes\n- Prevention of UV damaging the eyes\n- Protection against UV related eye disorders and disease","domain":"optical_engineering"}
{"url":"https://www.wellvu.com/cameras","date":"2023-06-03T05:38:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224649105.40/warc/CC-MAIN-20230603032950-20230603062950-00262.warc.gz","language_score":0.8459859490394592,"token_count":312,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__118566157","lang":"en","text":"Sony technology gives the highest quality image availableContact Us >\n(Model #: WV-CPV2)\nStandard for all Well-Vu cameras is the detachable camera head making service and repair much simpler. This new camera head incorporates the latest technology video chip from Sony providing the highest quality image possible.\n(Model #: WV-FISHEYE)\nDistortion free 184° hemispherical image. Get both side view and down view in one camera all on the screen at the same time. Incorporating the latest technology from the automotive industry for back up cameras, the side view image is true distortion free.\n(Model #: WV-DWFE)\nThis camera is the same as the Fisheye except has firmware to dewarp, flatten the image so it appears like a side view image.\n(Model #: HDDROPCAM)\n1920 x 1080P@30fps; 1280 x 720P@60fps\nSince 1997 Well-Vu, Inc. has been the number one producer of underwater viewing systems. Portable and easy to use, our systems save you time and make you money on the job site! Our manual Well-Vu system can be configured with the camera of your choosing.\nThis manual covers the Well-Vu 7\" Digital Video Command ConsoleDownload Manual\nThis manual covers the Well-Vu 15\" Digital Video Command ConsoleDownload Manual\nEncoder assembly, connecting remote pendant and setup of the SDM SeriesDownload Manual","domain":"optical_engineering"}
{"url":"https://alan-godrich.com/product/td-28c-led-light-g-clamp-fitting-75cm-long/","date":"2023-12-06T07:50:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00217.warc.gz","language_score":0.7366716265678406,"token_count":113,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__119829801","lang":"en","text":"Table Top G Clamp fitting With 28 LED Spots.\n- 75cm long flex.\n- Colour Black or White.\n- Model: TD-28CL\n- Voltage: AC 110-240V\n- Frequency: 50/60 HZ\n- Link: Motor Switch\nApplication: Any Sewing Machine\nNote: This is High-performance LED lamp Save 90% energy compare to traditional fluorescent light Service-life is around 60000 hours.\nThe illumination angle can be adjusted freely.\nDifferent lamp holder can apply to different sewing machines.","domain":"optical_engineering"}
{"url":"https://uv-technik.co.uk/products/view/Philips-UVA-Lamp-TL10","date":"2023-11-29T22:57:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100146.5/warc/CC-MAIN-20231129204528-20231129234528-00677.warc.gz","language_score":0.8670263290405273,"token_count":126,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__178170474","lang":"en","text":"Tubular, circular or compact single-ended low-pressure mercury vapour fluorescent lamps emitting long-wave UV radiation between 350 and 400 nm. The UV-B/UV-A ratio is less than 0.1 % (UV-B: 280-315 nm). R (Reflector) lamps have an internal reflector of 200 °. The PL-S /10 lamp consists of two single-ended fluorescent tubes melted together; its lamp base contains a specially adapted starter, providing almost instant starting characteristics. PL-S /10 lamps can operate on the same universal ballast as other PL-S lamps.","domain":"optical_engineering"}
{"url":"https://www.interchim.com/pp/2501/photoreactor.html","date":"2023-11-30T11:49:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100184.3/warc/CC-MAIN-20231130094531-20231130124531-00063.warc.gz","language_score":0.8218811750411987,"token_count":323,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__63802494","lang":"en","text":"Variable high power LED lamp unit for flow photochemistry\nHigh power (up to 700W) annular LED array 455nm light source\nCompatible with Cold Coil™ standalone reactor and Polar Bear Plus Flow™\nVariable (10-100%) output power supply\nLAN and RS232 enabled remote control\nThe Uniqsis PhotoSyn™ is a high power LED light unit for photoflow chemistry applications. A pair of enclosed hemispherical LED arrays, concentrate the light inwards onto a central coil reactor. Each array is composed of 260\nindividual 1W blue (455nm) LEDs making the unit parcularly suitable for photoredox applications.\nOther LED array formats with either 3 different selectable wavelength LEDs or a deep UV version will be available\nshortly. All the arrays are compatible with the same power supply unit which detects the configuration and identity of the LEDs present and automacally adjusts the power output accordingly.\nThe lamp units have independent cooling and are hermecally sealed such that a compressed gas stream or a gentle flow of water can be applied at higher power outputs for addional cooling.\nThe PhotoSyn is compatible with both the Uniqsis Cold Coil™ standalone reactor module and the Polar Bear Plus\nFlow™ cryogenic flow reactor, which control the coil reactor temperature independently of the lamps. Reactions may be run from 150°C down to sub-ambient temperatures dependent upon the power output required. The variable power supply allows the power output to be adjusted from 10-100% making the unit suitable for both small scale R&D and scale up applications.","domain":"optical_engineering"}
{"url":"https://yessavings.ca/file-ready/ccd-v200v220-service-manual-us-model-canadian-model-ccd-v220-e-model-ccd-v200-video-8-pro","date":"2019-05-20T22:28:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-22/segments/1558232256163.40/warc/CC-MAIN-20190520222102-20190521004102-00176.warc.gz","language_score":0.7442759275436401,"token_count":326,"dump":"CC-MAIN-2019-22","global_id":"webtext-fineweb__CC-MAIN-2019-22__0__128823161","lang":"en","text":"View and download sony ccd v8 operating instructions manual online video camera camcorder sony video 8 pro ccd v100 operating instructions manual 138 pages camcorder sony handycam ccd tr57 service manual 8 video camera recorder hi8 video camera recorder 210 pages. Operating manual stt series ccd cameras sbig astronomical instruments a division of diffraction limited 805 308 6985 declare under our sole responsibility that the model stt ccd camera complies with part 15 of the fcc rules operation is subject to the following two conditions e fuse see page x 8 16 connectors. Sony handycam pro video 8 video camera model ccd v9 no power parts parts only 2429 guaranteed by fri apr 19 sony video 8 handycam pro ccd v9 v90 instruction manual see more like this sony ccd v9 video 8 handycam hi8 camcorder bundle parts repair parts only 5995. View and download sony video 8 pro ccd v100 operating instructions manual online video 8 pro ccd v100 camcorder pdf manual download also for video 8 pro ccd v110 video 8 pro ccd v100. Model ccd cameras these large format cameras are sbigs sixth generation ccd cameras and us patent 5525793 optional remote self guiding internal filter wheel two stage cooling high speed usb interface and more these cameras have two ccds inside one for guiding and a large one for this manual describes the stl 1001e stl 1301e\nHow it works:\n1. Register Trial Account.\n2. Download The Books as you like ( Personal use )","domain":"optical_engineering"}
{"url":"https://infinityrays.com/products/night-vision-riflescop-waterproof-hunting-camera","date":"2023-02-02T07:51:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764499967.46/warc/CC-MAIN-20230202070522-20230202100522-00111.warc.gz","language_score":0.8795235753059387,"token_count":252,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__270616985","lang":"en","text":"Digital Night Vision Scope used anytime and provide a high-quality image regardless of lighting conditions.\nNight vision scope provides true night vision experience. This unit is equipped with a built-in superior infrared illuminator for clear vision, even in total darkness, up to 220 - 300 yards.The scope uses high-intensity infrared light to illuminate your scopes area of vision. Infrared is not visible to naked eyes so you get complete stealth in the dark without alerting your game.can be used anytime and provide a high-quality image regardless of lighting conditions.\nHD Screen For Easy Accuracy :Extremely high definition 5-inch screen that makes hunting in the night that much easier. Adjustable brightness and contrast to suit your needs.\nAssemble Under 20 Minutes : This product comes with multiple scope attachments and protective tape for easy setup.\nDay & Night Mode : Clear Vision Scope can be easily assembled on Riflescope with CCD and simple operation. You don’t need to be tech-savvy to set it up. It is really straight forward and simple.\nHigh-Definition Screen : High definition 5-inch screen that makes hunting in the day & night a smooth experience.","domain":"optical_engineering"}
{"url":"http://juliuswsld323.affiliatblogger.com/12597370/2-considerations-individuals-do-not-really-understand-when-it-comes-to-lasik-eye-surgical-treatments","date":"2019-01-18T09:29:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583660020.5/warc/CC-MAIN-20190118090507-20190118112507-00391.warc.gz","language_score":0.9558259844779968,"token_count":864,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__201951431","lang":"en","text":"The eye can be examined with relative ease as to both its function and its structure. A functional examination consists of the ability to relocate the orbit and the reaction of the student to light and accommodation.\nThe function of the eye may be tested in numerous ways. The client may be asked to recognize illuminated letter or items of varying sizes on exactly what is referred to as the Snellen chart.\nAlternatively, the assessment of the structural part of the eye may be made in a number of methods. Tension within the eyeball is determined by a \"tonometer.\" In particular illness, especially in glaucoma, the tension in the eyeball is increased considerably.\nNevertheless, it needs to be well kept in mind that a client with an eye problem might have other issues also. Frequently other physical conditions are primary and impact the eye as a consequence. The appearance of the eye can alert the client and the physician to troubles in some disruptions of other parts of the body even before other symptoms provide themselves.\nSubsequently, one's dependence on sight is emphasized when one deals with a temporary or possible irreversible loss of this essential sense. When corrective steps are looked for, specific kinds of vision correction such as contact lenses or eyeglasses are prescribed.\nOn the other hand, some people are troubled with the reality that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to motivate reduced utilization of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgery is the brief term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only distinction is that with this type of surgery, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are completely transformed. This can be done using an \"excimer laser.\"\nThe main purpose of this surgery is to produce a threadlike, rounded \"flap\" in the cornea using a blade known as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, enabling better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that individuals must understand. Probably, the hop over to these guys main reason this type of eye surgical treatment has actually become well accepted is due to the fact that most of its cases had actually succeeded.\nNevertheless, in spite of its success, there are still some disadvantages. Here is the list:\n1. It is an operation used to the most delicate part of the eye\nBecause LASIK eye surgical treatment involves the operation of the retina, which is among the most delicate portions of the eye, most people state that the operation can be very risky.\nIn other words, a basic error could nearly cause an person's lifetime blindness. Hence, it is essential to consider lots of factors before choosing whether LASIK eye surgery is the ideal corrective measure one has to undergo.\n2. It is not a best you can find out more treatment\nLASIK eye surgical treatment might correct your vision but it does not necessarily suggest that it can provide you a ideal vision. Even if statistical reports show that 70% of the clients might have 20/20 vision, this does not necessarily indicate they have perfect vision too.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical treatment the method most people view it\nConversely, the evaluation of the structural part of the eye may be made in numerous methods. It must be well kept in mind that a client with an eye problem might have other problems. Typically other physical conditions are primary and impact the eye as a effect. The appearance of the eye can notify the patient and the doctor to difficulties in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nLike its concrete counterpart, LASIK eye surgery is another kind of vision correction.","domain":"optical_engineering"}
{"url":"https://www.mtbrandao.com/pt/editorial/webinar-metrohm-raman-and-nir-spectroscopy/","date":"2020-02-27T20:05:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146809.98/warc/CC-MAIN-20200227191150-20200227221150-00399.warc.gz","language_score":0.8935655951499939,"token_count":216,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__6260781","lang":"en","text":"Webinar Metrohm - Raman and NIR spectroscopy\nNovember 07, 2019\nCompanies in the pharmaceutical, personal care, and chemical industry are now implementing strategies for incoming inspection of all the raw materials they receive. Raman and NIR spectroscopy are preferred methods due to their ease of implementation and sampling flexibility.\nBoth techniques require minimal training and can be used by personnel with very little understanding of chemistry and spectroscopy. Raman and/or NIR can therefore help companies to alleviate some of the workload pressures and can result in significant cost savings.\nMany companies have a hard time selecting the right spectroscopic technique for their materials. In this webinar the speakers will shine light on the advantages of both Raman and NIR so that users can make an educated decision to select the right technique for their particular incoming materials inspection needs.\nWho should attend the Webinar:\nThis webinar is designed for quality control and operations managers in the pharmaceutical, personal care, and chemical industry who would like to implement consistent and reliable incoming materials inspection.","domain":"optical_engineering"}
{"url":"http://www.uae.dukakeen.com/cameras-and-lenses","date":"2019-01-17T11:30:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583658928.22/warc/CC-MAIN-20190117102635-20190117124635-00566.warc.gz","language_score":0.6821908950805664,"token_count":454,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__31796217","lang":"en","text":"CAMERAS & LENSES\nPRODUCT DETAILSNikon 300mm f/2.8 MMVRNikon ED AF-S VR Nikkor 300mm f/2.8G IF...\nCanon EOS-1D X DSLR Camera (Body Only)18.1MP Full-Frame CMOS SensorDual DIGIC 5+ Image Processors3.2..\nNikon D4 BodySuccess has a new name Nikon D4 D-SLR a marvel of speed, accuracy, image quality and in..\nNikon D600 Kit 24-85mm VR24.3MP full-frame CMOS sensor | 39-point AF system (9 cross-type) ISO 100-6..\nNikon Df BodyRediscover the joy of photography. Nikon Df product shot with the Special Edition lens ..\nNikon D810 DSLR Camera BodyThe evolution of high resolution.One look at the jaw-dropping image quali..\nNikon D800E BodyExtreme resolution 36.3-megapixel FX-format (35.9 x 24.0mm) CMOS sensor Full 1080p H..\nNikon 80-400mm AF-SNikon AF-S NIKKOR 80-400mm f/4.5-5.6G ED VRThe ultimate medium to super-telephoto..\nPRODUCT DETAILSNikon D800 Body..\nPRODUCT DETAILSNikon D750 with 24-120 VR Kit..\nNikon D600 KitShoot big and travel light - the smallest and lightest full-frame digital SLR Nikon ha..\nNikon 85mm f/1.8 G AF-S NIKKORThis Nikon 85mm f/1.8 G is the sharpest 85mm lens ever made by Nikon, ..\nPRODUCT DETAILSNikon PC-E Micro-NIKKOR 45mm f/2.8D EDPerspective Control Manual Focus Lens | F Mount..\nNikon D600 Digital SLR Camera Body Only24.3MP FX-Format CMOS Sensor,EXPEED 3 Processor,3.2\" LCD Moni..","domain":"optical_engineering"}
{"url":"https://support.meetviva.com/help/viva-hd-ip-outdoors-camera","date":"2019-09-22T16:39:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575596.77/warc/CC-MAIN-20190922160018-20190922182018-00557.warc.gz","language_score":0.9083607196807861,"token_count":163,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__41577325","lang":"en","text":"The HD IP camera is produced for Viva Labs. It has the following specifications:\n- 1MP 720P HD\n- Angle of view Horizontal:70°,Diagonal :75°\n- IR Night Vision\nInstallation of a camera is done by selecting Devices from the menu in the Viva app, clicking Install new... and selecting the Camera, then following the instructions.\nOnce a device is installed, it can be deleted by selecting the correct Camera from the list under Devices, selecting Delete and following the instructions.\n- Connect the camera to a power source.\n- Wait around 1 min for the camera to boot up.\n- Press and hold reset button for around 15 seconds.\n- Release the reset button and wait for the camera to reboot completely. (like in step 2)","domain":"optical_engineering"}
{"url":"https://laserlevelguru.com/green-vs-red-laser-level/","date":"2023-02-02T23:46:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764500041.2/warc/CC-MAIN-20230202232251-20230203022251-00813.warc.gz","language_score":0.9453709125518799,"token_count":1134,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__59482352","lang":"en","text":"Have you noticed the number of people switching from red to green beam laser levels? If so, ever wondered the reason for that?\nUp until a few years ago, red was the king as far as laser levels were concerned. Whether you were working on construction, electrical installation, air conditioning installation or even heating equipment, red beam laser levels were a must-have.\nWhy it is, then, that more and more people are now choosing green laser levels? Surely these levels would have their fair share of shortcomings, or won’t they?\nTo answer all these – and many more questions – this article comes into play.\nGreen Vs Red Beam Laser Level\nBelow mentioned are the reasons why you should – and shouldn’t – choose both red and green beam laser levels.\nAsk any professional tradesman, and he’d tell you that green laser levels are more expensive than their red counterparts. On average, a green beam laser level costs at least 20% to 25% more than its red counterpart. That’s because, the parts behind green levels – which makes their laser more powerful – doesn’t come cheap. So, if you’re short on money, green levels are simply a NO-GO area.\nWhy is a green laser more expensive than a red?\nThe above diagram is a clear picture to your query. Green lasers are not cheap they have extra parts like a 808 diode, a frequency-doubling crystal and a second infrared laser crystal. This is why they are time consuming to build and expensive.\nWinner: Red Laser Level\nThe distance covered by the light depends upon various factors like reflection, refraction, polarization, scattering, dispersion, wave length etc. So we can’t conclude that distance covered are only dependent upon wave length. However as a layman, we can conclude green lasers can be viewed from a longer range than red lasers.\nTaking all other metrics same for both lasers, while working in indoors red lasers will have a range of 20-30 ft and green lasers will have a range of 50-60ft – according to PLS, a leading manufacturer of laser levels. Green laser level is leading here.\nBut here a twist, without purchasing green laser level you can opt for red laser level with a detector. Funny part is red laser level with detector will cost less than green laser level.\nCost (Green Laser Level) < Cost (Red Laser Level) + Cost (Laser level detector)\nWhile working in outdoor i.e working beyond 60ft, green laser level is a clear winner. Thats why this laser levels are getting popular in electrical industry and construction.\nOne of the reasons why green beam lasers have become so popular is their power, which allows them to boast an extended visibility range. That factor, however, is a double-edged sword; for their batteries do not last as long per charge as that of their red counterparts.\nAlso low battery in green laser levels can affect the visibility of green beams. So wen can conclude green one drains more battery than red one.\nWinner: Red Laser Level\nFor jobs that are done under ambient light conditions – like pavements, working with drywall, round constructions and plumbing – green beam laser levels are miles ahead of any other laser level. Why? Because their green diode allows them to emit greater power, hence making the green beam more visible even under the light.\nIn case you are wondering, it is the wavelength and power output of a laser level which determines its visibility. Provided power output is kept constant, wavelengths closed to 555nm are considered as brighter for eyes, which means green levels with wavelength ~ 560–520 nm shine the brightest, providing 4 times as much light as the red levels.\nHowever the Visibility depends upon the,\n- Ambient light: Both red and green laser level works nice in indoor but in out door green beam out-performs.\n- Type of surface: If the surface is a poor reflector of laser beam then it will be difficult for human eye to detect.\n- Battery strength: The luminance of green laser too depends upon the battery. The visibility will be better with new batteries.\nWinner : Green Beam Laser\nGreen laser levels are Compatible with Machine Control Receivers. That’s right, green beam laser levels are NOT compatible with machine control receivers. That is, because, a majority of these receivers come with pre-installed red beam detectors, which can only detect red light. So, for earthmoving applications, red beam levels are needed.\nIf you need to perform a DIY or home task, don’t want to pay over the odds on a tool and want it to be compatible with most receivers as well, you should go for a red laser level.\nGreen laser levels provide better visibility, boast long range and are best for working outdoors. Provided you can afford to spend a little bit over the odds, go for them.\nOur comparison of green vs red beam laser levels tells you all you need to know about both of them. Remember, both of them will work best provided you know where to use them. That means if your work is outdoors or bright ambient light conditions, green laser levels are worth a shot. Conversely, you can stick with the age-old and inexpensive red laser levels for indoors.","domain":"optical_engineering"}
{"url":"https://www.adlhealth.com.au/tag/laser-eye-surgery/","date":"2021-05-17T18:42:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243992440.69/warc/CC-MAIN-20210517180757-20210517210757-00331.warc.gz","language_score":0.9421168565750122,"token_count":285,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__57995142","lang":"en","text":"In general, laser eye surgery from eye specialists such as Insight Eye Clinic is used to correct poor vision and eliminate the need for glasses or contact lenses. In most cases, laser surgery is simple, relatively non-invasive and comes with quite a short recovery time.\nIn fact, in many cases you will notice an improvement in your vision immediately after the procedure.\nHowever, there are three different types of laser eye surgery, each of which is suited to different people in different situations. You should always speak with your local specialist to determine the best choice for your needs.\nBut, we’ve outlined them below to give you an idea of what each procedure involves and why it is done.\nF-LASIK Laser Eye Surgery\nLASIK (laser assisted in-situ keratomileusis) is one of the most common types of laser eye surgery in the world. It has been performed for almost 30 years, and is generally used to correct short-sightedness, long-sightedness, and astigmatism.\nIn general, LASIK surgery involves using a special laser to create a small flap on the cornea of your eye. This exposes the tissue underneath, which can then be treated with a different type of laser. Basically, the treatment will reshape your cornea, correcting your vision and allowing you to perform simple everyday activities within hours following the procedure.","domain":"optical_engineering"}
{"url":"https://hartandholm.com/en-eu/blogs/news/hvorfor-bruge-solbriller-med-uv400","date":"2024-02-21T08:36:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473401.5/warc/CC-MAIN-20240221070402-20240221100402-00641.warc.gz","language_score":0.9574497938156128,"token_count":734,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__106654032","lang":"en","text":"Have you bought cheap sunglasses of poor quality in the past because you don't see the point in demanding quality from your sunglasses? We have also done that once. But now we have learned how important it is to buy sunglasses that have UV400 to protect the eyes and we would really like to learn that from us, so that you also demand quality from your sunglasses - no matter the price.\nUV400 in your sunglasses works for the eyes as sunscreen does for the skin. It protects against the harmful UV rays emitted by the sun.\nWithout UV protection, the sun can damage your eyes both temporarily and long-term. That is why we naturally have 100% UV400 in ALL our sunglasses.\nIntense UV exposure can cause problems such as swollen, bloodshot and photosensitive eyes. Your eyes can also, after just a few hours in the sun without protection, experience what is colloquially called snow blindness, which is the equivalent of a sunburn of the skin, just in the eye. This means that, like a sunburn, it goes away after a day or two, but it can be very painful.\nThe complications that can occur in the long term are many and serious. They are the biggest reason why we need to protect our eyes from the sun.\nCancer is one of the worst, but also typical complications with UV rays in and around the eye. There is cancer both in the eye and around the eye. Between 70-80 cases of eye cancer are diagnosed each year. However, there are between 400-600 Danes who are operated on every year for skin cancer on the eyelid caused by UV radiation.\nChoose the right glass\nAny sunglass lens with UV protection is better than no UV protection, but there are some types of lens that are better for certain conditions than others. Here you can find a guide that makes you a little smarter about what types of sunglass lenses are available and what effect the different ones have.\nThis type of sunglass glass excludes the ultraviolet light that is reflected from horizontal surfaces, such as water, snow and wet surfaces. This makes them suitable for a trip on skis or a sailing trip on the water. They are comfortable and relaxing for the eyes and are available in many shades.\nThis type of sunglass lens throws back reflections and eliminates glare from sunlight and increases eye comfort. This makes them suitable for water sports and skiing and it looks super cool. Mirrored glass has also become a fashion trend, which can be seen in different colors and frame types, which can highlight your personal style.\nA good all-round sunglass lens that absorbs blue light reduces glare while maintaining color balance. It improves contrast without reaching blue-blocker level. In addition, it also looks super smart.\nPink and slightly reddish glasses\nProvides even sharper contrast in poor light conditions in fog and snow compared to the yellow lens, as the pink color emphasizes the warm tones. The red color is also good in poor light conditions in the forest and on days when the sun is not at its strongest, but you still want a bit of color in the glass and protect your eyes from UV rays.\nA cool-neutral color that is good for most purposes because it preserves the color differences. You will never go wrong in the city with a gray glass and they are extra good for sports and driving.\nA brown glass with warm tones is pleasant to look at and increases the contrast with the green colours. In addition to being smart fashion glasses with an all-around function, they are particularly good for activities out in nature where you need great contrast with green.","domain":"optical_engineering"}
{"url":"https://gadgetrons.co/en-au/products/endoscopic-ear-cleaner","date":"2024-04-14T12:17:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816879.25/warc/CC-MAIN-20240414095752-20240414125752-00222.warc.gz","language_score":0.9444165229797363,"token_count":165,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__39319439","lang":"en","text":"Are you tired of struggling to clean your ears properly?\nEndoscopic Ear Cleaner is here to help! This innovative device uses a wireless connection and a high-performance 3 Mega-pixel CMOS sensor to give you a clear view of your ear canal so you can make sure that you are not pushing any existing ear wax even deeper inside of your ear. It also comes with 6 LED lights and a 20X magnification lens, so you can easily see what you're doing. The lenses are waterproof which makes them very easy to clean. It easily links to your phone via app so you can see what you're doing.\n-Help you clean your ears and not push ear wax even deeper\n-Provide a clear view of your ear canal for inspection\n-IP67 waterproof lens for easy cleaning","domain":"optical_engineering"}
{"url":"https://event.webcasts.com/starthere.jsp?ei=1138291&sti=em1","date":"2017-04-24T19:06:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917119782.43/warc/CC-MAIN-20170423031159-00477-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9358015060424805,"token_count":241,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__87343748","lang":"en","text":"Whether you’re involved in designing a machine vision system for quality or process control in a factory application or one embedded in an automotive safety system, for retail analytics or trash collection, grasping the fundamentals of machine vision can help accelerate the development process.\nIn this presentation, John will provide an introduction to machine vision including basic definitions, benefits, applications, components, and will answer common questions such as:\nWhat is machine vision?\nWhat can machine vision do?\nHow does machine vision work?\nWhat are the parts of a vision system?\nWhat are the different machine vision system types and platforms?\nAdditionally, the webcast will conclude with a question and answer period.\nEditor in Chief\nVision Systems Design\nJohn Lewis is Editor in Chief of Vision Systems Design. For more than 20 years he has been writing about machine vision and other technology topics. He brings more than two decades of industry experience and technical expertise to engineers and systems integrators developing machine vision and image process systems. Throughout his career John has had dozens of articles on machine vision published in high-tech journals, and was also a technical editor for Design News, covering automation, machine vision, and other engineering topics.","domain":"optical_engineering"}
{"url":"https://www.wifi-shop24.com/imilab-ec3-outdoor-ptz-ip-camera-3mp-1296p-wifi-ip66-white","date":"2021-10-23T07:01:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585653.49/warc/CC-MAIN-20211023064718-20211023094718-00613.warc.gz","language_score":0.8641750812530518,"token_count":294,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__224125766","lang":"en","text":"The wireless IMILAB EC3 surveillance camera can record videos with a resolution of up to 1296P. In low light at night, the camera uses infrared vision to make the picture clear and understandable even at night. Clarity, brightness, level of detail and color are excellent even in low light.\nPTZ - rotation by 270 degrees\nThanks to the wide viewing angle, no detail goes unnoticed and the larger area is under full control. The camera can be controlled with the help of an application that helps you rotate the device horizontally in any direction.\nProtection against moisture - IP66\nThe camera can be used both indoors and outdoors. The camera housing is reliably protected from dust and water, the camera is not afraid of the weather: rain, snow or even rinsing with water.\nIntelligent recognition of the persons in picture\nThanks to special algorithms, you don't have to worry about false positives such as pets, insects or birds. The system is able to identify the person in the picture and start recording immediately. When the camera detects a person in the field of view, it can emit a very loud beep, then the device triggers an alarm and automatically records video for 10 seconds and notifies the owner via applications.\n|Manufacturer / Product:\n||IMILAB / EC3\n||2.4 GHz WiFi (802.11/b/g)\n||270° horizontal - 47,5° vertical","domain":"optical_engineering"}
{"url":"http://en.sinopack.com.cn/product/89.html","date":"2024-04-18T05:03:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817187.10/warc/CC-MAIN-20240418030928-20240418060928-00243.warc.gz","language_score":0.8736216425895691,"token_count":264,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__80505769","lang":"en","text":"Committed to the development and\nproduction of multi-layer co-fired\nNo. 21, Changsheng Street, Economic Development Zone, Luquan City, Shijiazhuang, Hebei, China\nThe shell of optical communication device has metal wall-ceramic insulator structure, and it can provide device with electrical signal transmission channel and optical coupling interface, as well as mechanical support and air tightness protection, solving the problem in mutual connection of chip and external circuit; 50Ohm characteristic impedance transfer connector can be installed, and it is applied to 2.5, 10, 25Gbps, 40Gbps, 100Gbps transmission rate. The product includes series of 14-lead butterfly shell, shell of 10-100Gbps transmission TOSA, shell of 10Gbps/100Gbps transmission receiver, shell of Mini-Pin structure, shell of Mini-Dil structure, shell of large-power laser, and it is used for the packaging of various photoelectric transmitting and receiving device, optical switch and large-power laser. It is used for broadband access, transmission network, data communication and CATV.","domain":"optical_engineering"}
{"url":"https://www.particulatesystems.com/2019/12/02/particle-shape-analysis-exploring-key-parameters/","date":"2020-09-29T07:56:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401632671.79/warc/CC-MAIN-20200929060555-20200929090555-00435.warc.gz","language_score":0.9211511611938477,"token_count":567,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__42274150","lang":"en","text":"Many nanoparticle analysis techniques focus on size at the expense of shape. Advanced particle size measurements, such as dynamic light scattering (DLS), often assume a uniformity of shape to statistically generate performance predictions based on the hydrodynamic diameters of particles in solution. This is suitable for many applications. However, manufacturers are increasingly becoming aware of the limitations of such techniques. Particle shape analysis has become more and more prevalent within the industry for more accurate predictions of raw material performance in processing, packaging, transit, or end-use conditions.\nOutlining Dynamic Imaging Particle Analysis (DIPA)\nImage analysis is the ideal solution for particle shape analysis. In terms of classical measurement techniques, imaging particle analysis is closer to conventional microscopy than the likes of DLS. Just like optical microscopy, dynamic image analysis relies on visible light to illuminate samples and resolve the minute geometric differences between discrete particles and agglomerated structures. The primary difference between microscopy and dynamic imaging is the use of high-speed digital cameras that can capture live imagery of thousands of particles, significantly improving workflows and eliminating the risk of inaccuracies due to in situ human error.\nDynamic imaging particle shape analysis subsequently uses statistical measurements based on tens of different shape parameters. These include – but are by no means limited to:\n- Circularity, rectangularity, ellipticity, convexity, and surface uniformity\n- Compactness and smoothness\n- Equivalent circular area / perimeter diameter\n- Bounding rectangle length / aspect ratio\n- Fiber length / curl\n- Polygon order\nThis list is just a small sample of parameters that dynamic imaging particle shape analyzers may consider as part of an overall analytical run. Some of these factors are closely interrelated. Circularity can be construed as a measure of perimeter smoothness against particle form, for example. These interconnecting properties are part of the reason why many dynamic image particle shape analyzers use histogram overlays for image comparisons, and why some measurements are usually run before others. Area (number of pixels) is the simplest, and therefore the first, measurement usually conducted but the data acquired may then inform further statistical analysis (i.e. circular equivalent diameter).\nThere is a complex interplay between distinct particle shape parameters, and it is important to accurately characterize raw materials using as many data points as possible to provide quantitative insights for accurate quality and process control.\nParticle Shape Analysis with Particulate Systems\nParticulate Systems specializes in particle size and shape analysis solutions that can help innovate and improve workflows in various markets. For particle shape analysis via dynamic imaging, we offer the SentinelProTM; the best-in-class DIPA system for improving flowability, dispersibility, packing density, and stability of your raw materials.Posted on","domain":"optical_engineering"}
{"url":"https://excelsior2020.eu/event/landslide-susceptibility-mapping-using-satellite-radar-interferometry-invited-talk-by-dr-skevi-perdikou/","date":"2023-12-11T23:17:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679518883.99/warc/CC-MAIN-20231211210408-20231212000408-00843.warc.gz","language_score":0.9239972233772278,"token_count":257,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__277961316","lang":"en","text":"✔️ Τhe EXCELSIOR H2020 project, the ERATOSTHENES Centre of Excellence (ECoE), the Department of Civil Engineering and Geomatics of the Cyprus University of Technology and Geofem Ltd. organized on December 3, 2020 a virtual invited talk by Dr. Skevi Perdikou.\nDr Skevi Perdikou is an experienced satellite remote sensing and geotechnical expert at the consultancy Geofem Ltd. She holds a BEng in Civil Engineering, an MSc in Geotechnical Engineering and a PhD degree from the University of Southampton in Satellite Remote Sensing.\nHer combination of engineering and satellite remote sensing skills enable Geofem to offer advanced earth observation techniques for engineering applications and interpretation of results. She has worked on many research and commercial projects in satellite remote sensing using both optical and radar data. Some of her projects include the use of satellite radar data for ground and infrastructure movement monitoring for landslides, transportation networks, forensic investigations, urban monitoring, in Cyprus and around the world. She has also performed many research projects in the field of satellite remote sensing funded by national sources, the EU, the European Space Agency and the private sector.\nWatch the invited talk online via YouTube:","domain":"optical_engineering"}
{"url":"https://www.allsurgeryjobs.com/recruiting-center/resume.php?resid=R563B9C2219ECC0787285","date":"2022-05-19T08:10:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662526009.35/warc/CC-MAIN-20220519074217-20220519104217-00042.warc.gz","language_score":0.8330258727073669,"token_count":290,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__142513435","lang":"en","text":"Undergraduate: Vanderbilt University — Nashville, TN (2011 – 2015)\nDegree: Bachelor of Engineering — Mechanical Engineering\nCertification: National Council of Examiners for Engineering and Surveying — EIT (October 2015)\nCollegiate Engineering/Technical Electives\nProduct Development & Innovation\nHeat & Mass Transfer\nEngineering Projects and Internships\nJunior Project — Vanderbilt University (September 2013 – May 2014)\n~ Designed, tested, and fabricated an automated window blind apparatus that responded to fluctuations in visible light intensity.\n~ The mechatronic device employed an array of photodetectors to measure the visible light flux and a pair of servomotors to drive the main shaft assembly.\nSummer Internship — University of Miami Neurosensory Laboratory (May 2014 – August 2014)\n~ Performed research on continuous loop averaging deconvolution (CLAD) algorithms to obtain clearly defined deconvolved signals of overlapping auditory evoked responses obtained at high frequency stimulation sequences.\nSenior Project — Vanderbilt University (September 2014 – May 2015)\n~ Led a team of four me...\nLogin or Register to view the full resume.","domain":"optical_engineering"}
{"url":"https://tdnewswire.com/best-red-dot-sights/","date":"2022-06-25T07:45:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103034877.9/warc/CC-MAIN-20220625065404-20220625095404-00564.warc.gz","language_score":0.8488913178443909,"token_count":2337,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__10482303","lang":"en","text":"When it comes to finding the best red dot sights, it can be tough to know where to start. That’s why we’ve put together a list of the 10 best red dot sights based on our own personal experience and research.\nOur list includes some well-known, popular brands as well as some lesser-known ones that may surprise you.\n10 Best red dot sights\nCrimson Trace RAD Max Pro Large Open Reflex Rifle and Shotgun Sight with 3 MOA Red Dot Reticle, Auto Shutoff, Ambient Light and Shake to Wake Sensors for Firearms, Defensive Shooting and Competition\n- DIMENSIONS: 2.1\" L x 1.4\" W x 1.7\" D and a weight of 3.2 ounces – Low and high rise Pic Rail mounts included\n- RUNTIME: 50,000 hours of battery life that runs on (1) CR2032 battery (included) with Auto Shutoff after 8 hours of inactivity to preserve battery\n- EASE OF USE: Top-accessible battery compartment allows you to change the battery without removing from the handgun - Textured sides allow for easy slide racking and large function buttons allow for easy adjustments even when wearing gloves\n- ACCURACY: Sight features 3 MOA red dot reticle for easy target acquisition - CT Radiant ambient light sensor adjusts reticle brightness and CT Motion shake-to-wake sensor automatically activates reticle when drawn\n- DURABLE: Constructed from aerospace grade aluminum with recessed optic lens for added protection – IPX7 waterproof\nLeupold DeltaPoint Pro Reflex Sight , Matte, 2.5 MOA Dot (119688)\n3 used from $368.00\n- Model No.119688 - DeltaPoint Pro with 2.5 MOA Dot reticle and Matte finish\n- Battery saving Motion Sensor Technology - Automatically deactivates illumination after 5 minutes of inactivity yet reacts instantly when movement is detected.\n- DiamondCoat Aspheric Lens increases the usable field of view by up to 56% and provides a scratch resistant crystal clear image.\n- Tool-less top loading battery access and true 1 MOA click adjustments provide unparalleled ease of use.\n- Rugged 100% waterproof construction makes it equally at home in hunting or tactical environments.\nVortex Optics Venom Red Dot Sight - 3 MOA Dot\n4 used from $224.53\n- The Venom Red Dot Sight-3 MOA promotes rapid target acquisition while providing a precise point of aim; getting shots down range and on target fast. The Venom's aluminum housing ensures this unit will stand up to whatever you throw at it.\n- High quality, fully multi-coated lenses offer a clean, wide field of view. Power and dot intensity controls are conveniently located on the left side of the sight to choose between 10 brightness levels.\n- The Venom also has an auto-brightness mode that uses an ambient light sensor to control dot intensity if the shooter prefers. Parallax Free\n- 1 MOA wind age and elevation adjustments are super sleek and make sighting in a breeze. The top load system makes changing the CR1632 battery a breeze, as you will not have to remove your sight to change the power source.\n- The Venom Red Dot will fit well on your rifle or shotgun giving you optimal flexibility.O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments\nVortex Optics Crossfire Red Dot Sight Gen II - 2 MOA Dot , Black\n2 used from $133.77\n- The updated Crossfire is a no-nonsense sight for near any application and needs a simple point of aim and none of the frills, the Crossfire should be at the top of your list.\n- With up to a 50, 000 hour battery life and night-vision compatibility at the lowest two settings, the sight will keep working in a variety of conditions. The low and skeletonized lower 1/3 co-witness mounts provide vesatility for this lightweight optic.\n- The 2 MOA dot is quick to acquire in close-quarters, while remaining fine enough to promote pin-point accuracy at extended range. 11 illumination settings allows shooters to change the dot intensity to the situation at hand.\n- Increased light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. Unlimited eye relief for rapid target acquisition.\n- Highly durable hard-coat anodization provides a low-glare matte surface and helps camouflage position. O-ring seals prevent moisture, dust and debris from penetrating for reliable waterproof performance\nSig Romeo MSR Red Dot Sight\n- High-performance lens coatings for excellent light transmission and dot contrast in any situation.\n- Ultra-compact size and weight with unlimited eye-relief and parallax-free operation.\n- Precise 2 MOA Dot\n- 1. 41\" T10 Torx M1913 Skeletonized lightweight Riser Mount for absolute co-witness\n- Top loading battery compartment with integral brightness control featuring 10 daytime and 2 NV settings\nSig Sauer SOR50000 Romeo5 1x20mm Compact 2 Moa Red Dot Sight, Black\n- 2 MOA Red-Dot provides 10 illumination settings (8 daylight plus 2 NV) for visibility in all light conditions\n- MOTAC (Motion Activated Illumination) powers up when it senses motion and powers down when it does not.\n- Provides for optimum operational safety and enhanced 50,000+ hour battery life\n- Integrated M1913 Picatinny interface provides industry-standard mounting options for a wide range of applications\n- Objective Clear Aperture: 20 mm Eye Relief: Unlimite. Illumination Settings: 8 Daytime / 2 . NV Elevation Adjustment Range: +/- 40 MO. Windage Adjustment Range: +/- 40. MOA Reticle: 2 MOA Red Dt. Adjustment increments: 0.5 MOA Battery: (1) CR203. Includes a co-witness 1.41\"\" riser mount\nVortex Optics Viper Red Dot Sight - 6 MOA Dot\n4 used from $211.89\n- The Viper Red Dot Sight has a super low-profile making it perfect for handguns with cut-out slides.\n- The Viper's low height allows it to co-witness with iron sights and the 6 MOA dot is easy to pick up and get you on target fast. Power and illumination controls are easy for shooters to access and adjust.\n- The fully multi-coated, ultra-clear lens offers a wide, unobstructed field of view while Armortek coatings protect your lens from oil, dirt, and scratches.\n- Hard anodized finish- highly durable low-glare matte finish. 1 MOA windage and elevation adjustments move the dot to your point of aim.\n- Waterproof and shockproof construction ensure your Viper Red Dot is ready for all conditions; O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments.\nHOLOSUN - HS407C-X2 Classic Open Reflex Red Dot Sight 2 MOA (Black)\n1 used from $233.23\n- OPEN REFLEX SIGHT: Holosun's HS407C-X2 is an open reflex optical sight designed to be compatible with pistols and provide a large field of view that will help you to increase accuracy and quickly acquire targets.\n- LONG BATTERY LIFE: The HS407C-X2 optic uses both Solar Failsafe technology and a high capacity lithium ion battery with up to 50,000 hours of battery life to power the optic.\n- SOLAR FAILSAFE TECHNOLOGY: Solar Failsafe allows the red dot sight to remain powered when your battery fails; also features a light sensor allowing the reticle to automatically adjust brightness under any lighting conditions.\n- SHAKE AWAKE: Holosun’s Shake Awake Technology shuts the LED off during periods of inaction; at the slightest movement, the on-board motion sensor instantly activates the LED.\n- LOCK MODE: This optic offers a Lock Mode that prevents unintentional button presses while the optic is holstered and a side access battery tray, which allows the operator to change the battery without removing the optic from the firearm.\nHIDENEL Red Dot Compact Flip Reflex Sight Flip Up Red Dot Sight Red Dot Compact RMR Flip for Mounts and Slides for Outdoor Hunting with Heightened Base for Rifle Pistol Handgun (Black)\n- 【Sturdy Red Dot Sight】HIDENEL Red Dot Compact Flip Reflex Sight is made of precision machined high-quality aluminum alloy,anodized with a matte black color. Not easy to loose, waterproof, shockproof, ultra-light, durable with high performance in all weathers.\n- 【Lightweight and Foldable】HIDENEL Red Dot Reflective Sight Compact Reflective Sight can fold to flat when you are not needed, convenient to storage. Just need to press the button, the mirror will flip up smoothly and quickly.\n- 【Wide Field of View】: Objective lens diameter: 22mm×16mm, high-precision and spacious mirror surface can provide you with a precise shooting experience. The sight of the scope is a red dot and has an adjustable function. The bullet will always hit you the location of the red dot.\n- 【Easy to Install】HIDENEL Compact Red Dot Flip Reflex Sight comes with 20mm (0.065inch) picatinny rail mount and a heightening base. Mounts directly onto G. MOS pistols and it will fit onto most RMR cut slides with the supplied riser. You can easy to install the sight and adjust the height.\n- 【HIDENEL Service】If there are any problems with HIDENEL Flip Up Red Dot Sight, please do not hesitate to contact us and we will try our best to help you solve the problem. Please go ahead and make the purchase with full confidence. We offer replacement or refund service.\nVortex Optics Strikefire II Red Dot Sight- 4 MOA Red Dot, Black\n3 used from $177.91\n- The new 2019 Strikefire II Red Dot is a rugged, reliable red dot sight that is at home in a variety of shooting applications allowing users to operate between 11 illumination settings with the lowest two settings being night vision compatible.\n- With aesthetics and functionality in mind, the power controls are at the rear of the Strikefire for easy access. The Strikefire II Red Dot runs off a CR2 battery and has been updated with improved battery life up to 80, 000 hours at setting 6.\n- An offset cantilever mount is provided; allowing you to move the sight forward to be used in conjunction with a magnifier and backup iron sights all on the same rail.\n- Fully multi-coated lenses provide a clean and bright, unobscured point of view. Unlimited eye relief allows for rapid target acquisition.\n- The single-piece chasis is compact and lightweight but still delivers shockproof performance withstanding both recoil and impact. Nitrogen purged and o-ring seals ensure fogproof and waterproof performance.","domain":"optical_engineering"}
{"url":"https://storetwo.com/store/la-67s1","date":"2021-10-16T00:13:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323583087.95/warc/CC-MAIN-20211015222918-20211016012918-00664.warc.gz","language_score":0.7424031496047974,"token_count":329,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__89908478","lang":"en","text":"- Made of black anodized aluminum\n- Gives you a 67mm filter thread\n- Works with FUJIFILM camera models (see compatible camera list below)\nCompatible Camera List\n- Adapter Ring for FUJIFILM Digital Camera (Black) x 1\n- In original packaging\nKiwifotos FUJIFILM FinePix S1 67mm CPL UV Filter Adapter Ring LA-67S1\n- Brand: Kiwifotos\n- Product Code: LA-67S1\n- Availability: Out Of Stock\nUltra thin filter frame at 3mm avoids vignetting on super wide angle lenses\nReduces haziness created by ultraviolet (UV) light\nMulti-coating reduces reflec..\nProtects the front portions of your lenses from dust, smudges and scratches\nTwo-stage release button - halfway pressing for auto focus and comple..\nPrevent glare and lens flare caused by unwanted light\nJazz up your photos with ..\nOut Of Stock\nIncrease the color contrast and saturation such as in blue skies and white cl..\nProduct Features Two-stage release button - halfway pressing for auto focus and complete pressing fo..\nFacebook Comments ()\nProduct Features Replace the original old-fashioned lens cap with this hinged-type self-retaining au..\nProduct Features Prevent glare and lens flare caused by unwanted light Jazz up your photos with rich..\nProtects your LCD screen from dust and scratch\nHigh grade hardness gl..\nProduct Features Made of hollow rubber for soft contact Provides cushioning around camera's eyepiece..","domain":"optical_engineering"}
{"url":"https://shortkro.com/camera-module-market-is-estimated-to-witness-high-growth-owing-to-increasing-adoption-of-smartphones/","date":"2024-03-03T08:42:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476211.69/warc/CC-MAIN-20240303075134-20240303105134-00114.warc.gz","language_score":0.9179028868675232,"token_count":727,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__149365020","lang":"en","text":"The camera module market is estimated to be valued at US$ 58,390.9 million in 2021 and is expected to exhibit a CAGR of 15.2% over the forecast period 2023-2030, as highlighted in a new report published by Coherent Market Insights.\nThe camera module market includes the integration of various technologies and components such as lenses, sensors, and image processors to capture and process images. Camera modules find extensive applications in smartphones, tablets, digital cameras, automotive cameras, and surveillance devices. They play a crucial role in enhancing the image quality and overall user experience. With the increasing demand for high-quality images, the camera module market is witnessing significant growth.\nThe market dynamics of the camera module market are influenced by various drivers and trends. Technological advancements in camera modules, including the integration of advanced sensors and image processors, are driving market growth. Additionally, the growing adoption of smartphones with high-resolution cameras is further propelling market expansion. The increasing trend of using cameras for augmented reality (AR) and virtual reality (VR) applications is also creating lucrative growth opportunities for market players. Moreover, the rising demand for automotive cameras for safety and driver assistance features is expected to drive market growth in the coming years.\nThe camera module market can be segmented based on type, application, and region. In terms of type, the market can be divided into CMOS camera modules and CCD camera modules. Among these, CMOS camera modules dominate the market due to their numerous advantages such as low power consumption, high-speed image capture, and cost-effectiveness. CMOS camera modules are widely used in smartphones, tablets, and digital cameras, which further enhances their dominance in the market.\nPolitical: The political stability in major countries such as the United States, China, and Germany positively impacts the camera module market. However, trade disputes and geopolitical tensions can adversely affect the global supply chain.\nEconomic: The increasing disposable income of consumers in emerging economies has led to a rise in the adoption of smartphones and digital cameras, thereby driving the demand for camera modules. Additionally, advancements in technology have resulted in cost reductions, making camera modules more affordable for consumers.\nSocial: The growing popularity of social media platforms and the increasing trend of capturing high-quality photos and videos for personal and professional use have fueled the demand for camera modules.\nTechnological: Technological advancements in camera modules, such as the development of dual-camera systems and the integration of AI algorithms for image enhancement, have boosted their adoption in various applications, including smartphones, automotive, and healthcare.\nThe Global Camera Module Market Demand is expected to witness high growth, exhibiting a CAGR of 15.2% over the forecast period of 2023-2030, due to the increasing adoption of smartphones and digital cameras across the globe.\nThe Asia-Pacific region is the fastest-growing and dominating region in the market, driven by the presence of major smartphone manufacturers in countries like China and South Korea. The region is also witnessing a rise in disposable income and a growing population of photography enthusiasts.\nKey players operating in the camera module market include Sunny Optical Technology Group Co. Ltd., Foxconn Technology Co. Ltd., STMicroelectronics N.V., OmniVision Technologies Inc., Chicony Electronics Co. Ltd., Sharp Corporation, LG Innotek Company Ltd, Partron Co. Ltd., Lite-On Technology Corp., LuxVisions Innovation, and Samsung Electro-Mechanics Co. Ltd. These key players play a crucial role in driving innovation and technological advancements in the camera module market.","domain":"optical_engineering"}
{"url":"https://www.bxbsystem.com/ptz-camera-pro/","date":"2023-03-22T02:39:13Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943749.68/warc/CC-MAIN-20230322020215-20230322050215-00779.warc.gz","language_score":0.753990650177002,"token_count":580,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__281546763","lang":"en","text":"HDC-717 Professional PTZ Camera\n- Supports HDMI, USB3.0, and Ethernet transmission.\n- 1/2.8 inch CMOS sensor combined with 2D & 3D noise reduction produces Full HD 1080p / 60fps image.\n- 12x optical zoom and 16x digital zoom with 72.5° wide-angle lens.\n- Dual stream with RTMP protocol: go live on two channels at the same time.\n- Up to 255 preset points\n- Multiple remote-control modes: RS232, RS485, and USB.\n- PoE support: control, power, video, and audio can be completed by only one network cable.\n- Supports VISCA, Pelco-D, and Pelco-P protocols.\nHDC-716 PTZ AI Tracking Camera\n- Full HD 1080p resolution with 12X optical zoom capability, presenting every detail with the pristine video quality.\n- Premium AI human detection: precisely detects and tracks the moving presenter in seconds, keeping him/she in center even when other people/objects get in the frame.\n- Click & Track: with just a tap, you can quickly switch the shooting target easily via WEB UI or remote control.\n- Tracking modes: Presenter Mode & Zone Mode.\n- Intuitive WEB UI interface: remotely set the preset positions, tracking modes, AI human detection range (whole/upper body), streaming modes, image flip, and other configurations.\n- Supports RTSP / RTMP protocols for broadcasting to various streaming platforms.\nHDC-715 Professional PTZ Camera\n- Ideal for Recording, Livestreaming, Video Conferencing, Remote Teaching & Training.\n- Crystal-clear Full HD 1080p 60fps video solution.\n- 20X optical zoom with 16X digital zoom, presenting precise and stable image.\n- Equipped with 3G-SDI, HDMI, CVBS, Ethernet image outputs for transmitting uncompressed video signals.\n- Supports PoE to supply power.\n- Remote control cameras via RS-232, RS485, and\nEthernet with BXB software.\n- Supports H.264 and H.265 streaming.\n- Built-in image flip and mirror functions for various installations, effective and convenient.\nHDC-613 HD PTZ USB Camera (EOL)\n- USB3.0 plug & play and HDMI video output interface\n- Full HD 1080p high definition signal output format with a high frame rate of 60 fps\n- 12x optical zoom is applicable for medium size conference room.\n- Horizontal viewing angle: 72°\n- Pan angle from -100° to +100°; tiltling angle from -30° to +30°\n- Up to 128 preset modes.","domain":"optical_engineering"}
{"url":"http://www.lightideas.co.uk/luxr-modux-series/luxr-modux-micro/luxr-modux-micro-recessed-pathlight/","date":"2018-08-17T14:43:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221212598.67/warc/CC-MAIN-20180817143416-20180817163416-00076.warc.gz","language_score":0.6689406633377075,"token_count":275,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__115370289","lang":"en","text":"Modux Micro Recessed Pathlight\n|The Modux Micro Recessed Pathlight is a miniature low-voltage dimmable outdoor washer, with optional canister.\nIllumination is produced through a 3 facet 360° flange that projects light outwards and downwards to create an even wash across the ground or floor to illuminate paths.\nPrecision machined in marine grade 316 stainless steel or from copper the luminaire achieves IP68 water ingress rating for piece of mind.\nThe Cree 1 watt max LED can be easily replaced if required or substituted for a colour LED.\n|Input Current:||60mA – 350mA max|\n|Power:||1 Watt max|\n|Efficacy:||70 Lm/W – Delivered from luminaire with unobstructed beam|\n|Colours:||2700°K, 3000°K, 4000°K, 5000°K, Red, Green, Blue, Amber|\n|CRI [3000°K]:||90 Minimum|\n|Standards:||IP68, LM79, CE, UL1838|\n|Light Engine:||Plug-in dimmable module equipped with Cree XT-E LED|\n|Driver:||Remote constant current driver required|\n|Spec Sheet:||Modux Micro Recessed Pathlight.pdf|","domain":"optical_engineering"}
{"url":"https://vag-expert.uk/offer/3d-geometry","date":"2023-09-21T10:14:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233505362.29/warc/CC-MAIN-20230921073711-20230921103711-00721.warc.gz","language_score":0.9200970530509949,"token_count":155,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__190494825","lang":"en","text":"Wheel alignment measurement with 8 high resolution cameras with an accuracy of 0.1 mm\nWe offer services in the field of:\n• Car geometry measurement and setting in Real 3D technology.\n• Measurement and diagnostics of the car chassis plate.\nWe measure wheel geometry using a device working in Real 3D technology. This device uses up to 8 high resolution cameras for measurement, thanks to which we obtain measurements in all planes with an accuracy of 0.1 mm.\nRemember that the correct geometry of the wheels in the car affects the driving comfort and tire wear, but above all the shortening of the braking distance and stable driving path, i.e. safety, which is particularly exposed in winter conditions, on slippery and uneven surfaces.","domain":"optical_engineering"}
{"url":"https://www.soled.hr/en/about-us-2/","date":"2023-11-28T10:04:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099281.67/warc/CC-MAIN-20231128083443-20231128113443-00213.warc.gz","language_score":0.9568695425987244,"token_count":182,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__92166396","lang":"en","text":"The company Soled doo was founded in 2011. and is closely specialized in the design and sale of LED lighting and related components. Our small but professional team is able to offer a complete service from conceptual design development, technical support and consulting to the implementation of lighting fixtures.\nWe are the exclusive representative of the Taiwanese company Aixen lite, which is distinguished by the production of high-quality LED lamps that use Osram light sources.\nWe can boast of a wide range of LED lighting that we have in stock and that we can deliver immediately. If none of the existing solutions suit you, we are able to offer special custom solutions.\nOur goal is to offer customers quality lighting fixtures at affordable prices and to guide them through the entire process to ensure the satisfaction of the end user.\nWe invite you to visit us in our showroom and see for yourself the quality of our products.","domain":"optical_engineering"}
{"url":"http://www.vladimirpetek.com/equipment","date":"2019-09-23T00:38:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575844.94/warc/CC-MAIN-20190923002147-20190923024147-00393.warc.gz","language_score":0.9361282587051392,"token_count":249,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__50297711","lang":"en","text":"Leica Monochrom - or the invention of a pocket-size field camera\nfor extraordinary photographs\nmy CAMERA of CHOISE\nFor each of my projects I spent many hours or even several days. After some experimentation phase with different camera types and systems I came to the conclusion that the Leica Monochrom fits for me best and that it has much to offer in architectural photography.\nBeside the famous Leica lenses high optical quality one of the big advantages of the Leica M system is it’s handy format for me.\nONE OF MY FAVORITE LENSES\nThe Leica Elmar-M 24 mm f/3.8 is my lens of choice for architectural photography. This lens has an extraordinary sharpness and an astonishing depth of field with almost no distortion. I think working with a 24 mm lens creates a very natural perspective that serves in architectural photography very well.\nunsurpassed Picture quality\nArchitectural photography is typically created from different angles and views of a building. What's really compelling about the Leica Monochrom is the clarity and quality of its raw pictures itself. The Monochrom renders shadows and light in a spectacular way and gives each photograph its own unique visual quality.","domain":"optical_engineering"}
{"url":"https://dblxconsulting.com/reference/lightingdefinitions/lightingdefinitions.html","date":"2024-04-24T11:33:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819273.90/warc/CC-MAIN-20240424112049-20240424142049-00000.warc.gz","language_score":0.8990650773048401,"token_count":383,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__174582728","lang":"en","text":"Luminous intensity is the ability to emit light into a given direction, or it is the luminous flux that is radiated by the light source in a given direction within the unit of the spatial angle. If the point light source emits Ø lumens into a small spatial angle ß, the luminous intensity is I=Ø/ß.\nThe unit of luminous intensity is candela. There is a standard that details the candela definition. This includes the standard light source and the physical conditions of the measurement.\nThis definition determines the amount of light that covers a surface. If Ø is the luminous flux and S is the area of the given surface, then the illuminance E is determined by E=Ø/S.\nThe unit of illumination in SI system is lx, and in foot-pound system it is foot-candle. One lx is the illuminance of 1 m² surface area uniformly lighted by 1 lm of luminous flux. The following drawing explains this definition. One foot-candle is 10.76 lux.\nLuminance L is the luminous intensity emitted by the surface area of 1 cm² (or 1 m²) of the light source. Mathematically it is L=I/S where I is the luminous intensity and S is the area of the source surface perpendicular to the given direction.\nThe unit of luminance is cd/m² or cd/cm² (in some applications lm/cm² or Lambert can be used). The following figure shows the concept.\nThe luminance value indicates glare and discomfort when we look at the lighting source. These values are very high for the sun or a small lamp and are low for large lighting fixtures.","domain":"optical_engineering"}
{"url":"http://www.opticianado.com/products/edging-lab-upgrade/","date":"2020-11-25T13:32:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141182794.28/warc/CC-MAIN-20201125125427-20201125155427-00172.warc.gz","language_score":0.9055153727531433,"token_count":210,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__201207969","lang":"en","text":"We’re excited to announce a new upgrade in our edging lab! Introducing the Weco Edge 580 Edging system. While this may seem foreign to most viewers, this beast is what works hard behind the scenes to make your lenses fit properly in your eyeglasses. What makes this so special is that it is fully customizable allowing us to control every aspect of lens fitment and can handle any type of lens material and frame design with extreme precision. This machine will also greatly reduce our turn around time especially for rimless and semi-rimless eyeglasses. Everything has been installed and has gone through intensive testing to ensure things are running properly. We look forward to providing you with the best pair of glasses and service available in the new year!\nTags: custom, custom eyeglasses, custom glasses, cutting lens, edge 580, edger, edging lenses, eyeglasses, eyewear, glasses, laboratory, optical, optician, retro, sunglasses, sunwear, toronto, vintage, weco","domain":"optical_engineering"}
{"url":"http://esric.org/the-facility/our-facilities/quantifying-cellular-dynamics","date":"2017-04-28T08:14:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122886.86/warc/CC-MAIN-20170423031202-00161-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8367127180099487,"token_count":404,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__172758910","lang":"en","text":"Fluorescence correlation spectroscopy is a technique which provides correlation analysis of the fluctuations of fluorescent intensities from single fluorescent molecules. The spatial and temporal analysis obtained is high resolution and can describe mobility coefficients, local concentrations and characteristic rate constants of intermolecular reactions for fluorescent molecules.\nFCS is performed on a Leica SP5 SMD gSTED microscope (see specification) equiped with single photon avalanche detectors (SPADs) and integrated Symphotime analysis software.\nFluorescence after Photobleaching (FRAP)\nFluorescence recovery after photobleaching (FRAP) relies on the photobleaching effect; a fluorescent molecule will be rendered unable to fluoresce after illumination with high intensity high energy light. By bleaching a small region containing fluorescent molecules it is possilbe to visualise, typically in the lateral plane, the movement of fluorescently active molecules across this 'dark' region. FRAP is commonly used for the investigation of lateral diffusion of molecules across the plasma membrane.\nWithin ESRIC FRAP is performed on an epifluorescent Olympus IX81 fully motorised microscope (see specification), controlled by Olympus Cell Xcellence software, using TIRFM and an integrated FRAP device.\nSingle particle tracking-photoactivatable localisation microscope (spt-PALM) describes the application o\nf PALM to live cells, using photoactivatable fluorophores, typically at the plasma membrane. The high degree of noise detected when imaging single molecules at fast frame rates means de-noising algorithms are required, which can identify each molecule and deliver quantitative data describing each molecule's trajectory. The image on the right shows published data of single SNARE molecules tracked inside a living neuron and the trajectories of those molecules quantified.\nspt-PALM is currently available on the epifluorescent Olympus IX81 fully motorised microscope (see specification) controlled by Olympus Cell Xcellence software under TIRFM.","domain":"optical_engineering"}
{"url":"https://scottmac.org/2017/01/","date":"2019-11-13T12:46:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496667260.46/warc/CC-MAIN-20191113113242-20191113141242-00156.warc.gz","language_score":0.9159236550331116,"token_count":114,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__146566618","lang":"en","text":"Getting an acceptable image on a DSLR is generally not difficult. Getting a professional, consistent, stable image is occasionally very hard.\nThe single greatest aspect of achieving a pleasing image is ensuring the image is exposed well. Exposure is the process in which light reaching the camera’s sensor is absorbed, quantified, converted to an electrical signal and digitally coded into a recorded image. It is comparable to the photochemical film equivalent of light reaching the photosensitive film in sufficient quantity, so it can be developed later. Continue reading “Video production – Exposure”","domain":"optical_engineering"}
{"url":"https://www.technolec.be/products/industrial-edge-connectivity/serial-converters/serial-to-fiber-converters","date":"2024-04-20T10:19:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817576.41/warc/CC-MAIN-20240420091126-20240420121126-00179.warc.gz","language_score":0.7476817965507507,"token_count":216,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__116093287","lang":"en","text":"Serial-to-fiber-convertersMoxa's industrial-grade serial-to-fiber optic converters can convert RS-232/422/485 to optical fiber, which provides users with an easy and reliable way to communicate with their serial devices.\nIndustrial RS-232/422/485 to multi-mode fiber converter, SC connector, 2 kV isolation, 0 to 60°C operating temperaturedetail\nRS-232/422/485 to multi-mode optical fiber media converter with fiber ring support and SC connector, 0 to 60°C operating temperaturedetail\nRS-232/422/485 to multi-mode fiber slide-in module converter, SC connectordetail\nRS-232 to multi-mode ST fiber optic converter, port powereddetail","domain":"optical_engineering"}
{"url":"https://bulkmromarket.com/product/leica-lino-l6r-3x360-red-multi-line-laser","date":"2021-10-24T07:36:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585911.17/warc/CC-MAIN-20211024050128-20211024080128-00708.warc.gz","language_score":0.8310799598693848,"token_count":305,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__124988939","lang":"en","text":"|Seller SKU:||Leica Lino L6R|\n|Minimum order quantity:||1|\n|Date first listed on Bulkmro Market:||Apr 6, 2021|\nThe Leica Lino L6R is a self-leveling red multi line laser with 360° laser line projection for multi-directional alignment—perfect for indoor applications. The laser’s vertical lines are easily adjusted (± 10°) once the plumb point is set.\nPRECISION ALIGNMENT RED MULTI-LINE LASER\nThree 360° thin, crisp and clearly visible red laser lines, two vertical, and one horizontal, which are exactly at the right angle (90°) to one another.\nThe precision adjustment handles, and the laser’s eccentric base allow the laser lines to rotate by ± 10° around the plumb point while the line-laser keeps its position; allowing for quick and precise setup for any alignment, plumbing, levelling or squaring tasks.\nThe triple-power concept ensures an uninterrupted workflow. Rechargeable Li-Ion batteries power the Lino L6R for up to 36 hours; alternatively, Alkaline batteries or simply its charger can be used. The strength of the laser lines is adjustable (100/75/50 percent). This not only makes the red laser lines thinner, but also increases the operating time.\nWe're just one step away! Please login to start the conversation. Login","domain":"optical_engineering"}
{"url":"https://www.sonicsampdrill.com/scanning/libs-in-line-grade-scanner-for-ore-sorting.htm","date":"2018-07-18T13:58:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590199.42/warc/CC-MAIN-20180718135047-20180718155047-00474.warc.gz","language_score":0.8088564872741699,"token_count":779,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__125675805","lang":"en","text":"The LIBS In-Line Grade Scanner is a quick and accurate scanner that can be used for primary in-line scanning for typical valuable materials (e.g. detect copper grade in copper ore) and forms the basis for Bulk Sorting at your mining site. Furthermore it can be used for secondary search for other valuable elements (e.g. Rare Earth Elements in tailings) or for penalty elements in ores (e.g. Arsenic in copper or gold ores). The equipment can also have applications off-line as a containerized closed loop principle, ideal for academic research, on-site R&D at the mine and as training or education tool.\nThe system can be containerized and works as a closed loop principle, ideal for R&D and as a training and education tool.\nThe open set up can be used for bulk sorting, the principle is In-line grade scanning above a sub stream.\nTogether with Spectral Industries and TNO, Eijkelkamp SonicSampDrill developed the LIBS In-Line Grade Scanner for Ore Sorting.\nSend a message to firstname.lastname@example.org to get in touche with our experts for more information on the LIBS In-Line Grade Scanner for Ore Sorting.\n|Type||Containerized in-line grade scanner; Laser Induced Breakdown Spectrometry (LIBS), closed loop|\nDimensions LxWxH 6,058x2,438x2,591 mm. Weight approx. 5,000 kg, internally divided into two compartments (one front office and one workings space, separated by safety door).\n|Safety system||The container has a special safety system and procedures for authorized use only|\n|Personal protection||2 laser goggles appropriate for the high power laser radiation from the pulse laser @1064 nm|\n|Main electric system||Connection to external 380/220 Volt network|\n|Lighting system||Lighting armatures in every compartment; incl. 220 Volt power sockets|\n|Conveyor belt system||\n2 Conveyor belts, one front and one back mounted with transfer points for continuous ore transport and speed regulated drives (380 V)\nSpectrometer unit Spectral Industries, type 1, with spectral range 350 - 800 nm and spectral resolution of around 0.1 - 0.2 nm\nPulse laser system Litron NanoLG 130-50 ND:YAG, performance max. 130 mJ pulses and repetition rate 50 Hz, wavelength 1064 nm\n|Pulse/Delay generator unit||Unit for triggering pulse laser and camera|\n|Camera||CMOS camera industrial grade, incl. cables and power supply|\nRugged industrial type laptop, incl. interface cables for puls/delay generator and for camera control & read out\nStudent user friendly interface. The software covers execution of measurements, spectral calibration procedures, camera control & read out functions and spectrum generation (wavelength calibrated)\nFor spectral calibration: Ocean Optics optical fibre-coupled light source for easy calibration of the spectrometer unit\n|Documentation/manuals||To be delivered in English language|\n|Cases||Rugged cases for all relevant instrument units for transportation|\n|Plug and play||\nAfter connecting the container with an outside 380/220 Volt power supply, the system is ready for use\nDue to the solid construction, the system is less sensitive for the low frequency vibrations of an earthquake. The robust design enables reliable performance over a large temperature range.\n6987 ER Giesbeek\nDrop us an email at: email@example.com\nor Call us today +31 313 88 02 01\nor find a representative firstname.lastname@example.org","domain":"optical_engineering"}
{"url":"https://radioreceivertransmitter.com/fiio-bta30-pro-transmitter-receiver-wireless-bluetooth-5-0-long-range-for-pc-tv.html","date":"2023-12-04T17:22:08Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100531.77/warc/CC-MAIN-20231204151108-20231204181108-00113.warc.gz","language_score":0.762625515460968,"token_count":175,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__285365223","lang":"en","text":"Optical fiber: up to 192kHz/24bit. USB IN:SBC/aptX/aptX HD/aptX LL/LDAC. SPDIF IN:SBC/aptX/aptX HD/aptX LL/LDAC. USB IN:SBC/aptX/aptX HD/aptX LL. UAC1.0(adjust on APP)/UAC2.0.DAC mode: supports optical input bypass to optical output TX mode: supports optical input bypass to optical output + Bluetooth TX output. 0.0008%(USB DAC 1kHz). This item is in the category \"Consumer Electronics\\Portable Audio & Headphones\\Portable Audio Accessories\\Transmitters\". The seller is \"sillyname48\" and is located in this country: US. This item can be shipped worldwide.","domain":"optical_engineering"}
{"url":"http://andrew.fritztech.com/blog/2009/12/11/new-kit-follow-up/","date":"2013-05-18T05:33:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368696381249/warc/CC-MAIN-20130516092621-00067-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9414439797401428,"token_count":219,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__210453265","lang":"en","text":"I decided to actually sort out what about my camera made focusing my f/1.4 manual lens so hard and I found this article about fast manual lenses and modern DSLR cameras. The root of the problem is how the camera splits light between the view finder and the auto focus sensors. The long and short of it is, that no matter how big your aperture, what you see in the view finder will likely be f/4 or smaller equivalent (at least with a entry or mid level DSLR).\nThis matches my experience. The depth of field in the view finder is huge even when the aperture is wide open (and you can verify that it is open by looking in the front of the lens). Even more frustrating is the fact that live view very obviously shows the correct depth of field.\nThis makes finding sharp focus through the view finder impossible, or at least very improbable and unrepeatable if you are using a very fast manual focus lens. The solution: use main sensor based live view and on screen zoom (when possible) to achieve razor focus.","domain":"optical_engineering"}
{"url":"https://stfrancisdammemorial.org/store-2/electronics/cameras/olympus-c-3040-3mp-digital-camera-w-3x-optical-zoom/?v=f24485ae434a","date":"2022-01-20T02:38:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320301670.75/warc/CC-MAIN-20220120005715-20220120035715-00006.warc.gz","language_score":0.9049640893936157,"token_count":355,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__154547996","lang":"en","text":"MD) OLYMPUS C-3040 ZOOM DIGITAL\nAn upgrade to Olympus’s respected C-3030, the C-3040 adds a faster f1.8 lens and better USB connectivity to the extensive features it shares with its predecessor. The new f1.8-2.6 lens is clearly the central feature of the new model. According to Olympus, the lens lets the C-3040 shoot in lower light conditions, which allows you to shoot flash-free in more situations and increases the effective range of the flash. The 3.34 megapixel CCD in the C-3040 captures images at a resolution of 2048 x 1536, in both the JPEG and uncompressed TIFF formats, and a 32 MB internal buffer allows you to shoot at 3.3 frames per second at high resolution and low compression levels. Additionally, the camera can record short QuickTime movies with sound.\nThe camera can be operated in several modes: in programmed auto mode, the camera does everything for you; in aperture and shutter priority modes, you get to set the aperture or priority, and the camera does the rest; in full manual mode, you have control over all camera functions. Images can be downloaded to either a Mac or PC via the included USB cable, or viewed on your television using the included video cable. The camera includes USB storage class connectivity, which means it can be connected to any USB-based Windows Me/2000 and Mac OS 8.6 or later computer without installing any software. The C-3040 also ships with two CR-3V batteries (four AA batteries can also be used), a 16 MB SmartMedia card, strap, remote control, and software.","domain":"optical_engineering"}
{"url":"http://howigotengaged.com/forum/laser-beam-machining-ppt-4f3e61","date":"2021-01-23T20:52:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703538431.77/warc/CC-MAIN-20210123191721-20210123221721-00372.warc.gz","language_score":0.8743228316307068,"token_count":627,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__131110825","lang":"en","text":"In this process, a laser beam of high energy is made to strike on the workpiece, the thermal energy of the laser gets transferred to the surface of the w/p (workpiece). The best part of this process is that we get high cutting rate.\nLaser beam machining By mickey211092 This is ppt all about laser beam machining which is a unconventional machining process that can be used even on those materials that can't be machined with conventional processes. Alloying .\nThe process used thermal energy to remove material from a metallic surface. Laser beam machining (LBM) is one of the most widely used thermal energy based non-contact type advance machining process which can be applied for almost whole range of materials. LASER BEAM MACHINING - Welding . Laser Beam Machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending.\nExplore Micromachining with Free Download of Seminar Report and PPT in PDF and DOC Format. ray of light is focussed for melting and vaporizing the unwanted material from the parent material. A brief description on LBM Scribd is the … Cladding . It can be applied to almost all types of metals. Also Explore the Seminar Topics Paper on Micromachining with Abstract or Synopsis, Documentation on Advantages and Disadvantages, Base Paper Presentation Slides for IEEE Final Year Mechanical Engineering ME or Production Automobile Students for the year 2019 2020. Laser Beam Machining Used light energy from a laser to remove material by vaporization and ablation Energy is concentrated optically Laser emits either continuous or pulsed light beam 5 Source: Google Images 6. Following are the advantages of PAM that you must know: In Plasma Arc Machining, hard as well as brittle metals can be easily machined. Laser beam machining (LBM) is one amongst the foremost widely used thermal energy based non-contact kind advance machining method which may be applied for nearly whole vary of materials. Laser Beam Machining Definition: A laser beam is a non-conventional machining method in which the operation performed by the laser. Laser Beam Machining – Main Parts, Principle, Working with Application; Advantages. The PowerPoint PPT presentation: \"Laser Beam Machining (LBM)\" is the property of its rightful owner. Laser beam machining (LBM): Principle of Laser beam machining (LBM): Conversion of electrical energy into heat energy to emit laser beam ; Laser beam is focused over a particular area on workpiece which creates high intensified concentration on work piece because of which the work piece melts, thus giving the required shape. Laser Beam Machining - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online.\nLaser – Material Interactions A great advantage of laser machining is capability to machine any kind of material, not necessarily conductive, depending on laser intensity and interaction time.","domain":"optical_engineering"}
{"url":"https://www.u-toyama.ac.jp/en-news/17019/","date":"2024-03-02T09:09:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947475806.52/warc/CC-MAIN-20240302084508-20240302114508-00750.warc.gz","language_score":0.9134804606437683,"token_count":514,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__65466423","lang":"en","text":"The hidden ability of synchrotron radiation to perform coherent control\nResearchers have discovered that synchrotron radiation from relativistic electrons has a hitherto unremarked ability to manipulate populations and pathways in matters. There is no technical restriction on the application of this brand-new coherent-control concept at shorter wavelengths as far as the hard x-ray range.\nCoherent control is a method to manipulate the populations and pathways in matters by light and is currently one of the most attractive research areas in optical physics and photochemistry. Lasers have been considered as unique light source enabling one to perform coherent control, and, thanks to the development of laser technology, the on-going research is moving rapidly into the regime of extreme ultraviolet wavelength.\nSynchrotron radiation from relativistic electrons is widely-used light with a continuous spectrum extending as far as the hard X-ray range. Synchrotron radiation is usually considered as being of poor temporal coherence, therefore nobody thought that it has a hidden capability of coherent control. Yasumasa Hikosaka (University of Toyama), Tatsuo Kaneyasu (SAGA Light source / Institute for Molecular Science (IMS) ), Masahiro Katoh (Hiroshima University / IMS) and co-workers have demonstrated this capability by achieving wave-packet interferometry on electron wave packets generated in Helium atoms.\nThe researchers employed two identical undulators installed into a straight section of the UVSOR-III storage ring at Okazaki, Japan. The twin undulators generated a pair of linearly-polarized electromagnetic wave packets, where each of the light wave packets has a duration of ~1.8 fs and the delay time between them can be adjusted with attosecond precision. The researchers’ idea is that the longitudinal coherence between the two of the light wave packets can be utilized in implementing coherent control. The researchers shined Helium atoms with synchrotron radiation from the twin undulators, and generated in Helium an electron wave packet pair transcribed from the light wave packet pair. They demonstrated that the populations of the individual excited states can be controlled by adjusting the interference between the electron wave packets.\nThis prototypical experiment verified the novel coherent-control framework with synchrotron radiation. There is no technical restriction on the application of this coherent-control concept at shorter wavelengths to which lasers could hardly reach soon. This unexploited capability of synchrotron radiation will advance the frontier of coherent-control technology.","domain":"optical_engineering"}
{"url":"http://universalsearchlights.com/","date":"2015-11-27T13:36:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2015-48/segments/1448398449160.83/warc/CC-MAIN-20151124205409-00211-ip-10-71-132-137.ec2.internal.warc.gz","language_score":0.6999813914299011,"token_count":197,"dump":"CC-MAIN-2015-48","global_id":"webtext-fineweb__CC-MAIN-2015-48__0__134300435","lang":"en","text":"Universal Searchlights is the sole source of the SLASS® - SLAved Searchlight System as well as the much anticipated HeliLight® series of high power helicopter searchlights.\nUniversal Searchlights, LLC\n|This site covers the Universal Searchlights SLASS Helicopter Slaved HeliLight SX-5 or SX-16 Searchlight and IR or TV gimbals. Airborne Searchlight Systems slaved in particular to FLIR Mark II FLIR U6000 FLIR U7000 FLIR U7500 FLIR 8000 FLIR 8500 Wescam 12 Wescam 16 Gyrocam, to the HeliLight Spectrolab SX-5 Starburst Spectrolab SX-16 Nightsun. \"FLIR\" \"Wescam\" \"Gyrocam\" \"Spectrolab SX-5 Starburst and SX-16 Nightsun\" are trademarks of those particular companies.|\n|Copyright 2007© Universal Searchlights, LLC.|","domain":"optical_engineering"}
{"url":"https://stewartoncbt.co.uk/unveiling-the-remarkable-advantages-of-safe-laser-technology/","date":"2024-04-14T05:47:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00120.warc.gz","language_score":0.9147374033927917,"token_count":639,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__119037151","lang":"en","text":"In the realm of modern medicine, technological innovations have continually pushed the boundaries of what’s possible. Among these advancements, safe laser technology has emerged as a cornerstone, offering a myriad of advantages that revolutionize medical procedures across various specialties. From enhancing precision to minimizing invasiveness, the benefits of safe laser technology are reshaping healthcare delivery in profound ways.\nOne of the foremost advantages of safe laser technology lies in its unparalleled precision. Unlike traditional surgical methods that rely on manual dexterity, lasers offer a level of accuracy that is unmatched. With the ability to precisely target specific tissues or cells, surgeons can navigate intricate anatomical structures with unprecedented accuracy. This precision https://lezermindenkinek.hu/\nis particularly invaluable in delicate procedures such as eye surgeries or neurosurgery, where the margin for error is minimal. By minimizing collateral damage to surrounding tissues, safe laser technology facilitates safer, more effective interventions and ensures optimal outcomes for patients.\nMinimally Invasive Procedures\nSafe laser technology enables a shift towards minimally invasive procedures, representing a significant advancement in patient care. Unlike traditional surgeries that often require large incisions and prolonged recovery times, laser-assisted procedures involve smaller incisions or no incisions at all. By harnessing the power of focused laser energy, surgeons can achieve remarkable results with minimal disruption to the body. This approach not only reduces postoperative pain and discomfort but also accelerates recovery, allowing patients to return to their daily activities sooner. Furthermore, the reduced trauma associated with minimally invasive techniques translates to fewer complications and improved patient satisfaction.\nSafety is paramount in any medical procedure, and safe laser technology offers several advantages in this regard. By minimizing tissue damage and reducing the risk of bleeding, lasers enhance patient safety during surgeries. Additionally, the precise nature of laser energy reduces the likelihood of inadvertent damage to critical structures, further mitigating risks associated with surgical interventions. Moreover, the sterilizing effect of laser energy helps minimize the risk of postoperative infections, ensuring better outcomes for patients. Overall, the enhanced safety profile of safe laser technology instills confidence in both patients and healthcare providers, paving the way for improved patient care.\nVersatility and Customization\nAnother notable advantage of safe laser technology is its versatility and ability to accommodate a wide range of medical procedures. Whether it’s treating skin conditions, removing tumors, or reshaping corneas, lasers offer customizable solutions tailored to each patient’s unique needs. Furthermore, advancements in laser technology have led to the development of specialized modalities that target specific indications with precision and efficacy. This versatility empowers healthcare providers to explore innovative treatment options and adapt their approach based on individual patient characteristics, ultimately leading to better clinical outcomes.\nIn summary, the advantages of safe laser technology in modern healthcare are manifold and transformative. From its unmatched precision and minimally invasive nature to enhanced safety and versatility, lasers have revolutionized the way medical procedures are performed and have significantly improved patient outcomes. As technology continues to evolve, safe laser technology will undoubtedly remain at the forefront of medical innovation, driving advancements in patient care and shaping the future of healthcare delivery.","domain":"optical_engineering"}
{"url":"https://inmoviesonline.com/how-to-watch-3d-movies-without-glasses/","date":"2020-10-01T20:40:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600402131986.91/warc/CC-MAIN-20201001174918-20201001204918-00026.warc.gz","language_score":0.9154250025749207,"token_count":523,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__241504430","lang":"en","text":"You need to wear a 3D glasses when you are watching 3D movies in the cinema. Can you watch a 3D movie without the glasses? If yes, how to watch 3D movies without glasses? Let’s find the solution!\nWhat is 3D Movie?\nA 3D movie actually has a separate image for each eye. When each eye sees the image intended for it (left image for the left eye and right image for the right eye), it will appear in 3D like in real life.\nIf the left eye sees the right image or the right eye sees the left image, it will appear flat in 2D. The purpose of the 3D viewing glasses is to cancel the wrong images so that they do not reach the wrong eye. Without the 3D glasses, both eyes see both images, and the result is a pair of flat double images without 3D vision.\nHow to Watch 3D Movies without Glasses?\nIt is not convenient for 3D movies viewers when the theaters don’t provide 3D glasses. And 3D glasses are easily to be scratched and dirty. Therefore, many 3D movies fans complaint about the glasses though they let you immerse in the films.\nM.I.T. have solved that problem and created a prototype for a 3D movie theater that doesn’t require any glasses. They call it Cinema 3D which allows everyone in the theater to enjoy the same 3D experience without any glasses.\nUsing a complicated system of mirrors that are carefully placed and calculated based on the distance of each audience member, everyone can enjoy a movie from every seat based on the angle they’re watching without needing any accessories at all.\nHowever, the high technology has not been applied in theaters generally. It will take some time before we all get to enjoy 3D movies without glasses.\nAfter the Cinema 3D is normal in our daily lives, it may be possible for us to watch 3D movies through televisions. Of course, we should pay more attention and work harder to make it come true.\n- How will We Watch Movies in the Future? Still in Cinemas?\n- All You Need to Know about Watching Movies in VR\nTechnology gives us surprise and update the ways of entertainments. Theaters will apply new technology in showing movies while directors are using advanced tech in directing new movies. Thus, we will be able to watch 3D films without 3D glasses one day. And it will be a revolution in the film industry when it becomes a truth in the future.","domain":"optical_engineering"}
{"url":"http://www.physicstogo.org/items/detail.cfm?ID=8460","date":"2016-07-29T00:09:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-30/segments/1469257829320.91/warc/CC-MAIN-20160723071029-00072-ip-10-185-27-174.ec2.internal.warc.gz","language_score":0.8595116138458252,"token_count":362,"dump":"CC-MAIN-2016-30","global_id":"webtext-fineweb__CC-MAIN-2016-30__0__23483459","lang":"en","text":"The Physics To Go website will be unavailable Friday evening through Saturday afternoon as electrical work occurs in the American Center of Physics server room. Down time will begin at 6PM Eastern Time on Friday. Service is expected to resume by 6PM on Saturday, July 30.\nthe The International Society for Optical Engineering\nThis activity on multiple reflections is produced by the International Society for Optical Engineering, the Optical Society of America, and the Association of Universities for Research in Astronomy. Two plane rectangular mirrors that meet on one edge produce various reflection patterns. Students learn the relationship between the number of images produced and the orientation of the two mirrors. The site lists all necessary tools and materials and includes numerous helpful photographs and diagrams.\n<a href=\"http://www.physicstogo.org/items/detail.cfm?ID=8460\">The International Society for Optical Engineering. Multiple Reflections. Bellingham : The International Society for Optical Engineering, August 19, 2007.</a>\nThe International Society for Optical Engineering. Multiple Reflections. Bellingham : The International Society for Optical Engineering, August 19, 2007. http://spie.org/Documents/Courses/Education_Outreach/reflections.pdf (accessed 28 July 2016).\n%0 Electronic Source %D August 19, 2007 %T Multiple Reflections %I The International Society for Optical Engineering %V 2016 %N 28 July 2016 %8 August 19, 2007 %9 application/pdf %U http://spie.org/Documents/Courses/Education_Outreach/reflections.pdf\nDisclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.","domain":"optical_engineering"}
{"url":"https://www.teknokroma.es/en/products/spectroscopy/infrared-ftir/ftir-accessories/variable-temperature-ftir-cell","date":"2023-06-02T15:04:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224648695.4/warc/CC-MAIN-20230602140602-20230602170602-00634.warc.gz","language_score":0.8946948051452637,"token_count":419,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__188207140","lang":"en","text":"Variable Temperature Cell Holder\nThe Variable Temperature Cell Holder is the ideal accessory to use for the transmission study of liquid or solid samples over a broad range of temperatures. The cell consists of a vacuum jacket that contains a refrigerant dewar/cell holder assembly and a heating block that contains the appropriate cell, and allows variable temperature over the range from -190°C to 250°C.\nNaCl windows are provided as standard on the cell holder, but a range of other UV, Vis, NIR and Infrared transmitting window materials are also available.\nThis transmission cell holder is designed for use with Specac’s Advanced Liquid or Solid Transmission Cells, Spectroelectrochemical Cell, or High Pressure Liquid Cell. The cell holder is installed into an optical spectrometer sample compartment either via the 3\" x 2\" slide mounting plate, or with a Benchmark™ baseplate.\nNote that this accessory requires an appropriate sample cell for its use, and that the temperature range of this transmission cell should be taken into account in its use.\nVariable Temperature Cuvette Holder\nThe Variable Temperature Cuvette Holder is a four port version of the standard Variable Temperature Cell Holder, designed to accommodate quartz glass cuvettes of up to 10 mm pathlength. This cell holder is intended for liquid sample Raman, Fluorescence, and UV spectroscopic analysis. The four port nature of the design means that collection of the (scattered) radiation can be at a 90° angle to the incident radiation as well as at a 180° angle as measured with a standard configuration.\nSpecac’s Variable Temperature Cuvette Holder operates over temperatures from -190°C to 250°C. A pair of Spectrosil B (UV-grade fused silica) is provided as standard for two of the cell holder windows, and the other two window ports are fitted with blank (metal) windows.\nThe cell holder is installed into an optical spectrometer sample compartment either via the 3\" x 2\" slide mounting plate, or with a Benchmark™ baseplate.","domain":"optical_engineering"}
{"url":"http://allspana.by/Electronics-405mm-Deluxe-Lens-CPL-X-Telephoto-Filters-Filter-Bundle-UV-46663-Filter-Sets/","date":"2021-01-28T03:01:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704835583.91/warc/CC-MAIN-20210128005448-20210128035448-00269.warc.gz","language_score":0.7304076552391052,"token_count":911,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__163359041","lang":"en","text":": 40.5mm Deluxe Lens + Filter Bundle: UV, CPL, FL-D, 1, 2, 4, 10 Filters, 2X Telephoto, 0.45x HD Wide Angle w/Macro, Lens Hood f/Select Samsung Digital Cameras. UltraPro Accessory Set Included : Digital Slr Camera Bundles : Electronics. Fully Compatible with the Following Models: Samsung NX300 with Samsung 20-50mm lens. Bundle Includes: 。 2x Telephoto Lens & 0.45x Wide Angle Lens w/Macro: Lenses Feature Razor-sharp optics, and the Wide-Angle lens has a detachable Macro lens for close-up shots 。 High-Resolution Filter Kit includes the 7 filters you need to get the best shots in any situation, including 4 Macro Close-Up Filters that can be stacked for additional effect 。 Professional Tulip Lens hood reduces flares and reflections, an essential add-on for your camera 。 Bonus Accessories Included: Lens Cleaning Pen, Deluxe Cleaning Kit & Lens Cap Keeper 。 The HD 0.45x Wide-Angle Lens dramatically increases your wide-angle range. Fit much more into the picture - great for scenery, indoor shooting. Multi-Coated Optics and High-Quality construction will provide years of use and enjoyment. 。- Includes an integrated MACRO Lens for Close-Up shooting, activated by unscrewing the front portion of the lens and using only the section labeled MACRO with your existing lens. 。 。 The HD 2x Telephoto Lens brings you much closer to the action. Ideal for shooting sporting events, portrait shots, nature photography. 。 。 The High-Res Filter Kit includes filters that are made from the finest High-Resolution solid optical glass. The UV filter absorbs ultraviolet rays to produce crisp, clear photographs. The Circular Polarizing filter eliminates reflections from non-metallic surfaces, and increases contrast and color saturation. The FLD filter helps balance light outdoors or where fluorescent lights are used. 。 。The Close-Up Macro Filter Kit includes four close-up diopters at +1, +2, +4 and +10 magnification. They screw onto the front of your lens, and maintain picture clarity while magnifying image size. Plus, these filters are double-threaded, which means you can combine them to achieve increased magnification. Ideal for photographing like flowers, jewelry, insects, etc. 。 。The Digital Tulip Lens Hood prevents stray light and flares from entering the lens by extending and shading the end of the lens. Also offers extra protection from accidental impact. 。 。 Package Includes: 。- High-Resolution Wide Angle/Macro Lens 。- High-Resolution Telephoto Lens 。- High-Resolution 3-Piece Filter Kit (UV, CPL, FL-D) 。- High-Resolution 4-Piece Close-Up Kit (+1, +2, +4, +10 Diopters) 。- Digital Tulip Lens Hood 。- Lens Pen Cleaner 。- Lens Cap Keeper 。- Essential Cleaning Kit 。 。 。\nCPL 2X Telephoto 10 Filters Filter Bundle: UV 4 FL-D 0.45x HD Wide Angle w/Macro 2 Lens Hood f/Select Samsung Digital Cameras UltraPro Accessory Set Included 40.5mm Deluxe Lens 1,Filter Bundle: UV 4 FL-D 0.45x HD Wide Angle w/Macro 2 Lens Hood f/Select Samsung Digital Cameras UltraPro Accessory Set Included 40.5mm Deluxe Lens 1 CPL 2X Telephoto 10 Filters, CPL, FL-D, 1, 2, 4, 10 Filters, 2X Telephoto,45x HD Wide Angle w/Macro, Lens Hood f/Select Samsung Digital Cameras, UltraPro Accessory Set Included : Digital Slr Camera Bundles : Electronics,: 40,5mm Deluxe Lens + Filter Bundle: UV, quality merchandise New fashion new quality Aftermarket Worry-free Fashion flagship store Good quality and low price, welcome to buy! 10 Filters Filter Bundle: UV 4 FL-D 0.45x HD Wide Angle w/Macro 2 Lens Hood f/Select Samsung Digital Cameras UltraPro Accessory Set Included 40.5mm Deluxe Lens 1 CPL 2X Telephoto.","domain":"optical_engineering"}
{"url":"http://joec.pro/moticam-1sp-47/","date":"2019-12-07T01:29:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540491871.35/warc/CC-MAIN-20191207005439-20191207033439-00236.warc.gz","language_score":0.9149525165557861,"token_count":910,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__129481842","lang":"en","text":"I was glad to find out that I can teach my kids about the microscopic world at a fraction of the price of my work professional Nikon equipment. The adapter will attach to the camera body and mount to the microscope. In addition of the Motic Images Plus 2. The included imaging software also allows you to enhance, label, measure, print, and catalog your recorded imagery with ease, and works with Windows XP or above, and Mac OSX. Motic Images Advanced 3.\n|Date Added:||26 November 2017|\n|File Size:||44.61 Mb|\n|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|\n|Price:||Free* [*Free Regsitration Required]|\nPlug-and-play camera for Windows or Mac computers, and nearly any stereo or compound microscope–with the supplied adaptors. Our Motic Play and Motic Educator imaging software have been created thinking about children, and therefore we designed them with a simple and fun interface that would catch their attention. The included imaging software also allows you to enhance, label, measure, print, and catalog your recorded imagery with ease, and works with Windows XP or above, and Mac OSX.\nSegmentation The superior counting module allows to perform manual segmentation by using a histogram colourgrey scale or by selecting the size. Capture still or moving microscope images at x pixel resolution. National Moticam 1 specs.\nThe first all-new redesign of our well-known software, the Motic Images Plus 3. Update Unrecognized Zip 1so.\nMoticam Series | Software\nI was also pleasantly surprised at how complete though simple the software is. Mooticam The Multi-focus module can be used to capture up to images taken at different focusing levels and assemble them into a new single image in focus. Having a Wi-Fi microscope or camera, the free MotiConnect App is the only thing a user needs to wirelessly connect their microscope to mobile devices.\nWith Motic Play and Motic Educator, a child can have fun while learning! The adapter will attach to the camera body and mount to the microscope.\nWith this simple software they are able to take pictures and record videos, and later on edit them by making measurements, adding texts, colors, shapes, icons, and much more. Enter new zip code to refresh estimated delivery time. Additionally, the work at one student’s station can also be shared with the entire classroom. Can be connected up to a maximum of 48 individual digital microscope systems.\nRequest more information:\nKnow more about the App. Surprisingly, this combo provides professional level photomicropaphy at less than educational level price!\nAgain great optics at an incredible price, an exceptional value, very highly recommended. Motic Images Advanced 3. They are not good enough for publishing but I don’t think anyone would expect that type of performance from a piece of kit that costs less than the slide holder on some professional scopes. National Moticam 1 reviews.\nWho said learning was boring? The camera also comes with 30mm and 38mm adapter rings to fit standard microscope eyepiece holder diameters. One tip for installation on the binocular eyepiece; the rubber eye cup has to be removed on the zeis it pops out so that the image fills out the sensor and the adapter fits well on the ocular. The camera is able to mount on any microscope that has a C-Ring adapter. Motic Images Plus 3. Assembly This module can be used for creating a single overview image out of multiple separated images.\nGetting the most of its performance using the binocular tube takes some fiddling but once installed correctly, the optical resolution is excellent even the lighting is acceptable, with crisp color 1xp and good contrast, the results are good enough for even post graduate educational purposes.\nFront View Show More Less.\nMoticam 1SP – Moticam (CMOS) – Panthera,Microscope and Microscopy Solutions by Motic\nRated 4 out of 5 by Edgar from Surprisingly competent I was pleasantly surprised of how good this cheap and simple scope camera is. In addition of the Motic Images Plus 2.\nWrite a review dbtcdzavcxsweswsxawccrwvfqezrctxwbstws. National Moticam 1 overview.","domain":"optical_engineering"}
{"url":"https://afamilyoptician.co.uk/what-are-contact-lenses/","date":"2024-04-20T17:31:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00047.warc.gz","language_score":0.9303296804428101,"token_count":245,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__13829418","lang":"en","text":"Contact lenses are made from a soft plastic, which feels like a moisture-rich gel material. This material is called a hydrogel.\nContact lenses fit directly onto the front surface of your eye, called the cornea. They correct your vision in the same way as your glasses. Both glasses and contact lenses bend the light coming into the eye onto the retina allowing you to see clearly.\nContact lenses can be used to correct:\n- Short-sightedness – when you can’t see objects in the distance clearly\n- Long-sightedness – when you can’t see close objects clearly\n- Astigmatism – when your eye has a rugby ball-shaped curvature\n- Presbyopia – when close objects become difficult to see due to age-related changes to the crystalline lens and surrounding muscles\nContact lenses made from hydrogel are breathable and comfortable. These lenses allow oxygen through them and into your eyes, to keep your eyes healthy, as well as looking and feeling fresh.\nThere are many different types of contact lenses including daily, two weekly and monthly. Your optometrist will help you choose the contact lens to best suit your eyes, vision and lifestyle.","domain":"optical_engineering"}
{"url":"http://protegritygroup.com/index.php/skylightssolar-tubes/","date":"2021-08-04T21:33:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046155188.79/warc/CC-MAIN-20210804205700-20210804235700-00244.warc.gz","language_score":0.6659045815467834,"token_count":130,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__65151290","lang":"en","text":"Add Value to\nFilters to Control\nStrategically placed for\nThe unique lens amplifies light from all directions giving you maximum daylight from dawn until dusk\nAverage financial payback is 5 to 7 years\nAdd an LED lighting system for optimum brightness 24 hours per day\n(Remote sensor can turn lights on when you enter the room)\nAdd Filters to Achieve Perfectly Balanced Light Levels\nDecorative Fixture Options\nQuick and clean installation\nup to 200 sq. ft.\nup to 250 sq. ft.\nup to 300 sq. ft.\nAdd a Second Lens (dome)\nMultiple shade and shutter options","domain":"optical_engineering"}
{"url":"http://www.ipme.ru/e-journals/MPM/no_21312/N2_08_bezrukova.html","date":"2017-12-11T05:37:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-51/segments/1512948512208.1/warc/CC-MAIN-20171211052406-20171211072406-00121.warc.gz","language_score":0.8285914063453674,"token_count":249,"dump":"CC-MAIN-2017-51","global_id":"webtext-fineweb__CC-MAIN-2017-51__0__41146645","lang":"en","text":"Natural (including biomedical) 3D disperse systems (DS) with nano- and/or microparticles\nare inherently polycomponent polymodal polydisperse systems. Characterization of\nsuch systems by different compatible non-destructive optical methods (refractometry,\nabsorbance, fluorescence, light scattering: integral and differential, static and dynamic,\nunpolarized and polarized) is desirable because of feasibility to organize the on-line testing of\ntheir state. At this road it is necessary to take into account peculiarities of inverse optical\nproblem solution for such complex systems (so called \"three ill\": \"ill-defined\" 3D DS, \"illposed\"\nproblems, \"ill-conditioned\" systems of equations). At the information-statistical\napproach to the optical characterization and control of 3D DS it is possible to go round these\npeculiarities and to qualify the 3D DS state changes.\nKeywords: biomedical and mineral particles; 3D disperse systems; inverse problem; light scattering; mixtures of nano- and micro- particles; on-line control; optical methods; polymodal size distributions\nfull paper (pdf, 1136 Kb)","domain":"optical_engineering"}
{"url":"https://aletheiawritingmagazine.com/laser-technology/60249-laser-technology-research-paper.html","date":"2020-01-17T14:42:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250589560.16/warc/CC-MAIN-20200117123339-20200117151339-00390.warc.gz","language_score":0.9358158111572266,"token_count":1053,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__167909457","lang":"en","text":"п»їRepublic of the Korea SUPREME COURT DOCKET Manila SECOND DIVISION G. R. No . 138033 В В В В В В March 22, 06\\ RENATO…...Read\nA WRITTEN REPORT ON LASERLIGHT\nTechno India University of Technology\nMegacity, Rajarhat Kolkata 700156\nA Report upon\nZAKIR UDDIN AHMAD\nStudent W. Tech third year Applied Electronics and Instrumentation Executive\nThe word laser is short for that stands for \" lumination amplification simply by stimulated release of rays. \" In a fairly unsophisticated sense, a laser is definitely nothing more than a unique flashlight. Strength goes in, usually in the form of electrical power, and light comes out. However the light released from a laser differs from that coming from a flashlight, and the variations are well worth discussing. You could think that the biggest difference is that lasers are more powerful than flashlights, yet this conceiving is more frequently wrong than right. True, some lasers are significantly powerful, but many are much less strong than even the smallest torch. So electrical power alone is not a distinguishing characteristic of laser mild. But for at this point it's enough to say that we now have three dissimilarities between lumination from a laser and lightweight from a flashlight. 1st, the laserbeam is much less wide than a flashlight beam. Second, the white light of a flashlight column contains numerous colors of sunshine, while the light from a laser includes only one, pure color. Third, every one of the light waves in a laserbeam are in-line with each other, while the light surf from a flashlight happen to be arranged at random. The significance of the difference will become apparent as you read about the size of light. Lasers come in almost all sizes—from little diode lasers small enough to fit in the eyes of a filling device to huge military and research lasers that load a three-story building. And different lasers can produce many different colors of light. The \" light\" produced by carbon dioxide lasers and neodymium lasers cannot be seen by the eye because it is inside the infrared percentage of the range. Interestingly, few of these lasers produce whilst much power as a typical 100-W lightbulb. What's more, lasers are not actually very successful. To produce 1W of light, almost all of the lasers listed in Table 1 . 1 could require hundreds of w of electricity. What makes lasers worthwhile for a lot of applications, however , is the thin beam that they produce. A fraction of the watt, packed into a supernarrow beam, can easily do things not any lightbulb could ever do. The ruby, yttrium aluminum garnet (YAG), and glass lasers are solid-state lasers. The light is generated in a solid, crystalline fly fishing rod that looks much just like a cocktail swizzlestick. All the other lasers listed are gas lasers, which make light within a gaseous channel like a fluorescents sign. If perhaps there are solidstate lasers and gaseous lasers, it's rational to ask if perhaps there's this sort of a thing as being a liquid laserlight. The answer is yes. The most common case is the organic dye lazer, in which absorb dyes dissolved in a liquid produces the lazer light. Laserlight Technology are useful for a wide variety of real time applications dealing with massive amount data. Several of its applications are used in waveguides, just like optical fibres. Spectroscopy photochemistry, atomic vapor laser isotope separation, and optical marketing and sales communications. So in this report a general idea about laser is given to you.\nTo begin with we want to thank Mr. Nantu Das, Mister. Suvobroto Banerjee, Mrs. Priyanka, Lecturer [EIE dept] of our college Techno India School Of Technology, for his constant support and appropriate guidance with no which the report wouldn't have been completely possible and then for encouraging all of us to write this kind of report. We would also like to thank my own sister intended for helping myself and encouraging in good and tough times. What is more I communicate my special thanks to mother and father for their support and assistance.\nBibliography: п‚· P. Zorabedian, Tunable external cavity semiconductor lasers, in Tunable Lasers Handbook, Farrenheit. J. Duarte (Ed. ) п‚· M. Docter, S. Beri, Farreneheit. Karouta, M. K. Smit, \" Semiconductor laser gadget, ” Worldwide patent #PCT/NL/2008/000185, filed September 01, 2008 п‚· www.forumscollegelib.com\nIndividual paper: Distinguish between management and leadership. Be specific 1 . Describe the jobs and duties that company managers and leaders enjoy in creating and preserving a healthy…...Read","domain":"optical_engineering"}
{"url":"https://deoeyewear.com/products/d105bluelight","date":"2022-06-30T05:01:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103661137.41/warc/CC-MAIN-20220630031950-20220630061950-00201.warc.gz","language_score":0.8828272223472595,"token_count":200,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__146761722","lang":"en","text":"- Corrects one field of vision (near, intermediate, or distance)\n- Readers improve the ability to read something up close, such as a book or a computer screen. Reader lenses are used spefically for near vision, therefore the lens power is always positive.\n- Magnification Strength: Up to +5\n- Upon UV exposure, lenses immediately start changing from clear to dark grey\n- Offers 100% UV protection\n- Add to any eyeglasses for an additional $50\n- sunglass lenses block 100% of the UV-A and UV-B rays from the sun\n- lenses are available in 4 colors: Dark Grey, Brown, Blue, Green\n- add to any eyeglass frame for an additional $25\n- Anti-Blue Light\n- Anti-Glare Package\nAll deo prescription lenses are made from extremely durable polycarbonate.","domain":"optical_engineering"}
{"url":"https://zadgetsy.com/product-category/auto-accessories/car-accessories/vehicle-camera/","date":"2022-01-26T04:38:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304915.53/warc/CC-MAIN-20220126041016-20220126071016-00010.warc.gz","language_score":0.738567590713501,"token_count":245,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__22308756","lang":"en","text":"No products in the cart.\nShowing all 14 results\nMEKEDE Car Rear View Camera Wide Night Visions Angle\nNew Car Rear View Camera Night Vision Reversing\nAycetry Car Parking Camera Night Vision Waterproof\nCar Parking Camera LED Night Vision Waterproof Camera\nGreenYi Car View Camera With Auto-Dimming\nHippcron Car Rear View Camera Night Vision Waterproof\nNew Car Rear View Reverse Parking Camera Monitor\nNew Car Rear View Reverse Backup Camera Waterproof\nOlysine Parking Camera Night Vision Waterproof Camera\nCar Rear View Camera Waterproof Auto Parking Sensor\nCar Rear View Parking Camera Reverse Backup\nPodofo Car Rear View Parking Camera Monitor Waterproof\nIsudar Car Parking Camera Rear View Night Vision\nHippcron Car Parking Monitor Night Vision Waterproof\nUsername or email address *\nLost your password?\nEmail address *\nA password will be sent to your email address.\nSubscribe to our newsletter","domain":"optical_engineering"}
{"url":"https://blade-city.com/blogs/gun-knife-blog/remote-control-machine-gun-system-acquires-tracks-and-eliminates-targets-from-up-to-1-500m-away","date":"2024-04-20T22:15:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817688.24/warc/CC-MAIN-20240420214757-20240421004757-00718.warc.gz","language_score":0.9146695733070374,"token_count":149,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__127676065","lang":"en","text":"Meet the Common Remotely Operated Weapon Station, aka the CROW.\nDesigned for use on armored vehicles, this US military weapon allows operators to acquire and engage targets without leaving the relative safety of their transport.\nThe CROW is capable of supporting a wide array of weapons systems including the MK19 grenade launcher, M2 .50 cal machine gun, M240B machine gun, and M249 SAW.\nThe “bionic eye” attached below the barrel is composed of a thermal imaging camera and laser rangefinder with an integrated control system providing ballistic corrections up to 1,500 meters for targets moving up to 25 mph.\nSee the CROW in action on a US Army training mission in the video below.","domain":"optical_engineering"}
{"url":"http://celignis.com/equip.php?value=1","date":"2018-07-22T12:14:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676593223.90/warc/CC-MAIN-20180722120017-20180722140017-00197.warc.gz","language_score":0.9230502843856812,"token_count":1274,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__24541972","lang":"en","text":"NIR Systems at Celignis\nWe have two FOSS XDS NIR spectrophotometers in our laboratory. These both contain an XDS monochromator which is attached, for one system, to a rapid solid content analyser (RCA) module and, in the other system, to a rapid liquid analyser (RLA) module. Specifications of the XDS monochromator and each of these modules are detailed below:\nThis system uses a tungsten halogen filament lamp as the radiative source. Light then enters the monochromator enclosure via the lamp housing exit slit and is directed onto the grating by a mirror after the entrance slit.\nThe grating is a concave holographic grating, ruled with fine lines to separate the white light into individual wavelengths. It is rotated by a positioning motor, and hence the rotational position is correlated with the wavelength. The resolution of the grating is specified as 0.5 nm. An effect of the diffraction grating is that many orders of radiation are produced, each one comprising a spectrum over a certain angle. There occurs a partial overlap of the different orders of radiation which will result in different wavelengths from different orders appearing in the same position. For example, the wavelengths 2400 nm, 1200 nm and 800 nm from the 1st, 2nd and 3rd orders, respectively, might be superimposed. The XDS only uses first order radiation, since this is the most intense. Hence, it is necessary to block the radiation from the other orders. This is accomplished with order-sorter filters which are mounted in a paddle whose position is kept in sync with the grating position motor. Hence only first order radiation is let through. The four filters are: 400-700 nm, 700-1100 nm, 1100-1700nm, and 1700-2500nm.\nThe light leaves the grating and is reflected towards the order sorter filter off of a second mirror. The light then passes through the order sorter and fills the exit slit with the selected light to pass, via optical fibre, to the detector module. Other relevant specifications of the XDS monochromator are detailed below:\n- Spectral Resolution - This can be determined as the measurement of the separation of closest pair of absorption lines that can be separately identified. It is reported to be 2 nm for the FOSS XDS.\n- Spectral Data Interval - The gaps over which data points are collected, in the XDS it is every 0.5 nm.\n- Wavelength accuracy - The difference between the measured wavelength of a wavelength standard and the wavelength reported for that standard by the equipment. This is reported as being less than 0.05 nm for the FOSS XDS.\n- Wavelength precision - Repeatability of wavelengths on the same instrument, given as < 0.005 nm on the XDS. Wavelength precision can also be measured based on a group of instruments in which case the value for the XDS is reported as <0.02 nm.\n- Scan speed - Time taken to cover all the analytical wavelengths. The XDS has a data acquisition rate of 2 scans per second.\n- Stray light - This is the sum of any energy/light, other than the chosen wavelength, that reaches the detector. It is reported to be < 0.1% at 2300 nm for the XDS.\nRapid Content Analyser\nThe Rapid Content Analyser (RCA) has a reflectance detector that incorporates 4 silicon detectors (for the wavelength range 400-1100nm) and 4 lead sulphide detectors (for the wavelength range 1100-2500 nm). These detectors are mounted at a 45 degree angle to the sample surface (which is irradiated by the light at normal incidence). The signal from the detector is then sent to the amplifier where it is amplified and, digitised, and sent to the computer associated with the system.\nIn a conventional set-up an iris is locked in place in the RCA module and used to focus a small circular cell over the scanning window so that spectra can be collected from the sample contained within this cell. The capacity and surface area of this cell are very small and would preclude the analysis of anything but well comminuted and homogeneous samples. This would prevent the development of NIR analysis methods for more hetereogeneous samples that have larger particle sizes. The RCA transport assembly solves this problem by allowing material within a much larger sample cell, the 'coarse sample cell', to be scanned. This rectangular cell is placed in the locking mechanisms of the wheeled solids-transport device and spectra are taken through the window. The transport assembly then moves, by means of a motor device, to a second position, which represents a separate part of the coarse cell to that which was previously scanned, and further spectra are collected. This process repeats six more times and at the final iteration the last part of the window of the coarse sample cell has been scanned and the transport assembly then returns the cell to its starting position.\nRapid Liquid Analyser\nThis system is designed for the analysis of liquids and includes a transmission detector and the capacity to include a variety of analytical cells of differing path-lengths. The system also includes a heater to allow for a set temperature to be reached before the spectrum is taken.\nFurther Information on NIR\nWe have additional pages on our website detailing the background to near infrared spectroscopy and the services that make use of our NIR equipment. Included below is a short animated video detailing the advantages of our NIR analysis package for the rapid analysis of biomass for lignocellulosic composition.\nAnalysis Packages that Use Our NIR SpectrophotometerThe Celignis Analysis Package(s) that use our NIR Spectrophotometer are listed below:\n| Total Sugars, Glucose, Xylose, Mannose, Arabinose, Galactose, Rhamnose, Lignin (Klason), Lignin (Acid Soluble), Acid Insoluble Residue, Extractives (Ethanol-Soluble), Ash, Ash (Acid Insoluble) |","domain":"optical_engineering"}
{"url":"https://concordant-thought.com/who-invented-the-microscope/","date":"2024-04-22T15:39:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818312.80/warc/CC-MAIN-20240422144517-20240422174517-00623.warc.gz","language_score":0.9646093249320984,"token_count":1324,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__41595131","lang":"en","text":"Who Invented the Microscope? The first microscope was invented in 1590 by the Dutch Zacharias Janssen. This inventor created the optical microscope composed of two lenses. He developed this instrument with lenses that were made by his family. The microscope was a great innovation for those times, for being an instrument that allows us to see objects or organisms that are too small to be observed by our eyes.\nThe term microscope comes from the combination of two Greek words like micros which is “small” and scope which means “to look“, for what it describes this object is capable of observing really tiny objects.\nThe branch of science that studies very small objects with microscopes is called microscopy. Janssen’s microscope had as dimensions a tube 45 centimeters long and 5 centimeters thick. It also had a convex lens on each side, in order to have a magnification of the observed object between 3 and 9 times depending on the aperture of the diaphragm.\nWho Invented The Microscope In Which Year?\nThis first microscope was optical because it contained two lenses. This apparatus was capable of generating a larger image of the object that was observed and operated by refraction.\nThe development of the microscope allowed science and scientific research to advance a lot since from this invention it was possible to study important objects invisible to human sight. Before the microscope, these types of studies could not be done exactly, because they were not visible. With the microscope, it was possible to observe structural, cellular, and component aspects found in people, animals, plants, rocks, and in all kinds of living and even inert organisms.\nBefore the invention of the microscope, it was not known how the smallest structures in nature were or how they worked.\nAnother important advance occurred in the year 1665 when it is described in a text by William Harvey how he used the microscope to observe blood capillaries. Sometime later Robert Hooke used the microscope to look at a thin piece of cork and was able to see that the material was porous and that it looked like small cells that he named cells.\n- This was the first observation of dead cells in history and all thanks to the microscope.\n- Robert published a text called Micrographia, with drawings describing the images obtained with light microscopy.\n- After a few years, the Italian biologist and anatomist Marcello Malpighi was the first to observe cells and living tissue with a microscope.\n- During the 17th century, Anton van Leeuwenhoek developed his own microscopes and managed to describe and document several relevant discoveries, such as the observation of red blood cells, bacteria, protozoa, sperm, which until then had not been seen or analyzed in detail.\nIn order to observe these objects, Leeuwenhoek carved his own magnifying glasses and obtained a microscope at 275 times magnification. This man went on to create 26 different microscopes throughout his life.\nLeeuwenhoek became a major microscopist even though he had no scientific training. Also for his research and discoveries, he is considered the founder of bacteriology.\nMicroscopes with association achromatic objective lenses were developed in the 18th century, with Chris Neros and Flint Crown being the first to use them. Then in the 19th century, it was discovered that dispersion and refraction can be changed by using two or more optical means. Thanks to this knowledge, excellent quality achromatic objectives could be developed that improved microscopes.\n- At this time mechanical improvements were achieved that increased stability and simplicity for the use of microscopes. In 1877 Ernst Abbe managed to improve microscopy since he replaced water with cedar oil, so he was able to reach 2000 times the observed objects.\nThe Electron Microscope\n- Between 1925 and 1932 the first electron microscope was created, designed by Ernst Ruska and Max Knoll.\n- With this new microscope, greater magnification of the objects was achieved.\n- The improvement in microscopes was achieved because the electron beam instead of visible light began to be used to focus the sample to be observed, therefore, 100,000-fold magnification was achieved.\n- Electron microscopes magnify objects much more because electrons have a shorter wavelength than visible photons.\nTypes of Microscopes\nMicroscopes can be classified into simple, which are those that only use one lens to enlarge what you want to observe, and compounds, that use two or more lenses to enlarge the sample.\n- These are the most common types of a microscope but there are still other typologies. Currently, there are many types of microscopes such as light microscopes, light microscopes, electron microscopes, scanning probe microscope, atomic force microscope, virtual microscope.\n- There are other typologies that are used in scientific research, but they are less used. The most modern microscopes are digital.\n- These microscopes are connected to a computer through a USB port which allows you to see what appears under the microscope on the computer.\nThe images are converted into files and saved on the computer. The rest of the microscope’s operation is the same as the rest.\nModern microscopes are made up of a set of elements such as lenses, mirrors, and prisms that transmit light from the objective to the eyepiece. These will be different according to the type of microscope in question, but basically they share the same components.\nDownload App: Microscope – Apps on Google Play\nCurrently, all kinds of elements such as bacteria, organisms, the composition of rocks or fluids, cells, and all kinds of really small objects found in nature can be analyzed with microscopes.\nScience has come a long way thanks to the microscope since not only can you observe the components of biological objects, but you can also observe the functioning and interaction between organisms, cells, and biological substances.\nAlso, may interest you:\n- Who Invented The Abacus?\n- Who Invented the Power Banks?\n- Who Invented Vinyl Flooring?\n- Who Invented Gasoline?\n- Who Invented The Alphabet?\n- Who Invented the Pulley?\nThe microscope is a fundamental instrument for current scientists since it allows them to discover new knowledge constantly, which favors the understanding and understanding of certain topics, and in this way, they can solve problems especially in the medical and biological areas.","domain":"optical_engineering"}
{"url":"https://en.foroespana.com/best-5-led-matrix-providers-in-china-2023/","date":"2023-12-04T22:24:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100535.26/warc/CC-MAIN-20231204214708-20231205004708-00221.warc.gz","language_score":0.9340867400169373,"token_count":1151,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__76957957","lang":"en","text":"LED matrix is a type of display made up of many individual LED (Light Emitting Diodes) that can be used to create graphic or text displays. The LEDs are arranged in rows and columns, allowing them to be individually addressed and creating dynamic visuals very easily.\nHow does the LED matrix work?\nA LED matrix is a two-dimensional array of LEDs, usually arranged in rows and columns with each LED capable of independently emitting light. It can be used for a wide range of display purposes including digital signage, passcode locks and more.\nThe way the LED matrix works is by applying current to each row and column of the array in the desired order. For example, if you wanted some LEDs in the top left to be lit, then you would apply a current to each row one after another while keeping the column pin high at all times. This will cause the desired LEDs to light up while all other LEDs remain off.\nWhat is the advantage of LED matrix?\nThe main advantages of LED matrices are their bright illumination and low power consumption when compared to other types of displays. Additionally, they are highly customizable and can be reprogrammed to display different images, animations, and messages. Furthermore, they are relatively inexpensive and require fewer components than other types of displays.\nBest 5 led matrix providers in China 2023\nHanron Lighting Co., Ltd is one of the leading manufacturers and developers of high quality dream color led strip lights and LED neon lights. They do manufacturing and developing, designing, selling, and supplying these products.\nIn the past decade, Hanron has cultivated a group of talented individuals consisting of over 100 people, including ten technical engineers and twenty sales engineers. In addition to passing ISO9001: 2015 quality management system, they also have certified products by ETL, BIS, CE, RoHS, Reach, LVD, TUV CB, IECEE, TER, LM80, waterproof IP ratings and more.\nTheir company has produced over 500 types of addressable led strip lights and pixel led strips as a result of research and development over the past several years, including popular products like the WS2811, WS2812B, WS2815, and SKT6812. In addition to engineering-specific products (LED pixel screens, LED strip lights, breakpoint resumes), their OEM/ODM services also take into account their customers’ application scenarios and design documents.\n2, Shenzhen Yake LED Tech Co., Limited\nYake is a company specializing in the production of LED displays.\nAs an LED display manufacturer, they provide superior quality products at competitive prices, provide convenient experiences for their customers, and provide responsive services and support services.\nIt is Yake’s belief in integrity, respect, excellence and empathy that allows them to build and maintain deep trust with their customers, vendors, and team members worldwide.\n3, Shenzhen Lightall Optoelectronic Co., Limited\nFounded in 2013, Shenzhen Lighthall Optoelectronic Technology Co. LTD is a professional manufacturer of led displays which is integrated with R&D, manufacture, marketing and after-sales service. Founded in 2013, they are based in Shenzhen, with a plant area of more than 5000 square meters, a wide variety of professional production equipment, and a professional management team.\nThere are several types of led displays that they specialize in, including indoor and outdoor rental led displays, indoor and outdoor fixed installation led displays, small pixel led video walls, transparent led displays and stadium led displays. Their team of marketing, technology, and management professionals has a lot of experience in the field, and is always ready to help customers with any problems. They are available 24 hours a day, 7 days a week.\n4, Shenzhen Fredlighting Technology Limited\nFounded in 2008 in Shenzhen, the company specializes in the development of technology based on LEDs (Light Emitting Diodes) as well as high quality LED lighting and associated products. To achieve this, their company relies on personal commitment, experiences and skills of every member in the team working under an effective managemental system which satisfies different kinds of product requirements.Fredlighting Technology Limited, with 3500 square meters of factory base and R&D centers, has alwvays been and still will be a service-oriented leader in LED Strips,LED Light Bar,Neon Sign,Solar outdoor lamp,Cob Downlight,LED Tube,LED Spotlights, LED Bulb, LED Panel Light,LED Modules,LED Ceiling Light, LED Wall Washer, G4 LED etc. By absorbing advantages from competitors, advanced technology, and top-ranking talents in the LED field, they are able to accomplish all of this. One of the largest manufacturers of LED lighting products, they quickly gained a high reputation around the world thanks to their excellent quality, competitive prices, and strong R&D capabilities.\n5, Shenzhen Brighter Led Technology Co.,Ltd\nShenzhen Brighter OpticalElectrical Technology Company Ltd is a private high-tech enterprise that deals with LED display screens, design, production, distribution, and service. Its main products include indoor LED display screens, outdoor LED display screens, small spacing LED display screens, full-color LED display screens and other LED display screen products. It was established in 2004 with a registered capital of 10 million yuan and a plant area of 12000 square meters. It is located in the golden section of the G107 National Highway, near the Qianhai development zone in Bao’an District. The company employs nearly 400 people, and produces 40k patch points a day…","domain":"optical_engineering"}
{"url":"https://namegolden.com/2022/01/11/reflecting-telescope-definition/","date":"2022-06-29T06:18:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103624904.34/warc/CC-MAIN-20220629054527-20220629084527-00395.warc.gz","language_score":0.9466908574104309,"token_count":777,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__235342545","lang":"en","text":"Reflecting Telescope Definition; Reflecting telescopes (also known as “reflectors”) employ a single or many sets of curved mirrors to reflect light and produce images. A remedy for the refracting telescope’s chromatic distortion was devised by Isaac Newton in the 17th century: the reflecting telescope.\nIn spite of the added optical aberrations, reflecting telescope design allows for enormous objective sizes. A reflector is the most common type of big telescope in astronomy. Additional optical components can be added to improve image quality or to better place the image mechanically in a reflecting telescope in a number of combinations. Reflecting telescopes are sometimes known as catoptric telescopes since they use mirrors.\nMirrors were mostly made out of metal from Newton’s time until the 1800s. The Leviathan of Parsonstown, which included a 1.8-meter-wide metal mirror, is included in this category, as are Newton’s original concepts and the largest telescopes of the nineteenth century. Using a block of glass coated with a very thin layer of silver, a new method gained favor in the early nineteenth century.\nReflecting telescopes like Crossley and Harvard were made possible in part by common telescopes, and this helped raise the status of reflecting telescopes in the scientific community when metal mirror designs were exposed for their flaws. Metal mirrors, in particular, reflected around 23% of the light, and the metal itself was tarnished as a result. The mirror’s needed accuracy figure may be lost with frequent cleaning and tarnishing.\nThe visible spectrum of light is primarily focused and converged by an optical telescope (while some work in the infrared and ultraviolet). The brightness and angular size of distant objects are magnified with optical telescopes.\nDirect observation or photography, as well as data collection via electronic image sensors, are possible with an optical telescope.\nOne or more curved optical components, such as glass lenses and mirrors, are used to gather and concentrate light, allowing the image to be captured, photographed, analyzed, and transmitted to an electronic device.\nSeveral non-astronomical types of equipment, such as theodolites and spotting scopes, as well as camera lenses and spy glasses, all use a telescope as their primary source of light. By focusing visible light through a telescope’s eyepiece, a magnified image is formed. The phrase “sky binocular” is most often used to describe a monocular mounted on a tripod for viewing the night sky, but portable binoculars may be used for a wide range of tasks.\nRefracting, reflecting, and compound telescopes are the three main types of optical telescopes.\nLook at the accompanying figure, which demonstrates the difference between refracting and reflecting light.\nIf you’re looking for the word refractor telescope, you’ve found it. As the name suggests, this is an optical telescope that uses a lens in order to take an image. In addition to spy glasses, astronomical devices, and long-focus camera lenses, this telescope is employed. By multiplying the focal length of the telescope’s eyepiece with the focal length of the objective lens, a refractor’s magnification is calculated.\nThe telescope’s eyepiece or instruments, which are used to focus the telescope’s image, are often positioned in the back, after a lengthy tube and a lens. The hole in the design might be as small as a few centimeters for small spotting telescopes or as large as one meter for the largest refractor ever built. Unique components may be found in the design as well as the eyepiece. Spotting telescopes with an eyepiece that has an extra lens can keep the image from looking upside-down.","domain":"optical_engineering"}
{"url":"https://www.eversightvision.org/event/eversight-webinar-current-practice-patterns-for-iol-calculations-in-patients-with-corneal-disease/","date":"2023-12-06T13:17:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100599.20/warc/CC-MAIN-20231206130723-20231206160723-00267.warc.gz","language_score":0.9026121497154236,"token_count":109,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142868740","lang":"en","text":"Presenter: Kamran Riaz, MD\nDate: 7 p.m. ET Thursday, Sept. 15\nThis webinar will review current research and developments in IOL calculations, including discussion of recent developments in optical biometry, such as total keratometry (TK), and their relevance to corneal surgeons performing cataract surgery. Three specific situations will be discussed: cataract surgery in keratoconus eyes, combined with DMEK and post-penetrating keratoplasty (PKP).","domain":"optical_engineering"}
{"url":"http://aeiboston.com/process_active_alignment.htm","date":"2014-07-31T11:28:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-23/segments/1406510273012.22/warc/CC-MAIN-20140728011753-00034-ip-10-146-231-18.ec2.internal.warc.gz","language_score":0.8936876058578491,"token_count":403,"dump":"CC-MAIN-2014-23","global_id":"webtext-fineweb__CC-MAIN-2014-23__0__188127555","lang":"en","text":"Processes & Tools: Active Alignment for Camera Modules and Opto-Electronics\nActive alignment measures key performance attributes in a product during manufacturing enabling dynamic adjustments of the manufacturing process to create products with optimal performance. This is different from passive alignment, where components align to each other based on the accuracy and precision of mechanical fixturing, tooling, and motion stages in the manufacturing process. AEi typically implements a multi-axis, also called a multiple degree of freedom, approach to active alignment. This allows us to compensate for variation of component tolerances in multiple physical dimensions for best overall results.Application Examples:\n- Camera Sensor Alignment and Test\n- Planar Photonics Device Alignment and Test\n- Single Channel Photonics Device Alignment and Assembly\nProducts & Platforms:\n- Photonics Module Align, Assembly and Test (PMAT)\n- Camera Module Align, Assembly and Test (CMAT)\nFeatures & Benefits of AEi Implementation:\n- Open architecture approach allows for selection of optimal instrumentation and sensors for a given application\n- The FlexAuto software platform allows measurements and dynamic adjustments based on these to be easily configured\n- Product performance and yield are almost always greatly improved using active alignment versus just passive alignment\nWhile active alignment requires additional instrumentation and sensors, etc., it may not necessarily be more expensive than passive alignment. Active alignment supports the use of less accurate (and less expensive) fixturing and motion stages in a given manufacturing station.\nAs with other tools we use, AEi takes an open architecture in utilizing active alignment. We have the experience and ability to select sensors and instrumentation to include in our flexible automation solutions to best meet a given application’s needs. This includes a wide range of optical and electronic instruments, force transducers, flow transducers, and temperature transducers. Our reconfigurable station control software is used to acquire the measurements and optimize the manufacturing process to make active alignment practical and cost effective.","domain":"optical_engineering"}
{"url":"https://www.kamloopsoptometry.ca/what-is-myopia/orthokeratology-and-myopia-management/","date":"2023-10-02T12:13:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510994.61/warc/CC-MAIN-20231002100910-20231002130910-00683.warc.gz","language_score":0.9410130381584167,"token_count":422,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__225786206","lang":"en","text":"Orhtokeratology, or Ortho-K is the use of specifically designed and fitted hard contact lenses to temporarily re-shape the corneal surface to improve distance vision. It has been a great option for those who are nearsighted and want clear vision without the use of glasses, daytime contact lens wear or do not want to undergo refractive (Laser) surgery. Ortho-K lenses are worn at night and reshape the eye while you sleep. Vision improvements are only maintained as long as you continue to sleep with the lenses as directed.\nNearsighted or myopic individuals typically have a steeper cornea, this causes light not be properly focused on the retina resulting in distance blur. Ortho-K lenses rest just above the corneal surface on a thin layer of a tears. The lenses put pressure on this tear layer which then causes the central cornea to flatten. The now flatter cornea can now properly focus distance images clearly on the retina. While rigid enough to reshape the cornea, the lenses also allow oxygen to pass through keeping your eyes healthy overnight. When ortho-k lenses are removed in the morning the cornea stays flattened for a while and vision is corrected without the need for glasses. If you stop wearing the lenses at night, your eyes will eventually go back to their original shape and distance blur will return. You have to keep wearing the lenses regularly to keep the vision correction.\nUntil you get used to them, you may feel the lenses until you fall asleep. As treatment progresses, the lenses typically become much more comfortable. Proper lens hygiene is very important with children and adolescents who are treated with Ortho-K as there is a risk of infection with any contact lens wear.\nIt typically takes 1-10 days to obtain optimal results, Ortho-K is one of the best ways at reducing the eyes elongation, showing an average of 60% reduction in myopia. However, not everyone is a candidate for Ortho-K. You Optometrist will perform numerus measurements to determine ones candidacy","domain":"optical_engineering"}
{"url":"https://quantumtrento.eu/riccardo-franchi-awarded-spie-optics-and-photonics-education-scholarship/","date":"2023-03-23T04:40:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944996.49/warc/CC-MAIN-20230323034459-20230323064459-00122.warc.gz","language_score":0.9014775156974792,"token_count":208,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__185168563","lang":"en","text":"Congratulations to Riccardo Franchi for winning a 2021 Optics and Photonics Education Scholarship by SPIE, the international society for optics and photonics, for his potential contributions to the field of optics, photonics or related field.\nRiccardo Franchi is a PhD student in the Nanoscience Laboratory at the University of Trento and participates in the Transdisciplinary PhD program of Q@TN. His research interests include the study of integrated structures for the Electric Field Induced Second Order Nonlinearities (EFISON) in silicon, the Lorentz reciprocity breaking and the topological behavior of matrices of non-Hermitian microresonators. Riccardo’s project is focused on the generation of mid-infrared entangled photons using the EFI-SPDC in silicon waveguide with lateral p-i-n junctions. He currently serves as the Vice President of the SPIE Student Chapter at the University of Trento.\nYou can find the full SPIE press release here:","domain":"optical_engineering"}
{"url":"http://canvas.pantone.com/gallery/64817417/Kandao-360-VR-Camera","date":"2020-01-19T01:26:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250594101.10/warc/CC-MAIN-20200119010920-20200119034920-00393.warc.gz","language_score":0.9247945547103882,"token_count":384,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__30192903","lang":"en","text":"KANDAO - Professional 3D 360° VR Camera\nKanDao Technology is a Shenzhen based company that redefines VR camera Hardware & Software. After designing their first product, a 360 Vr camera called Obsidian, we handled their rebranding.\nThe Kandao Obsidian honors its name having been awarded Best of Innovation in the Digital Imaging category, CES 2017. With its elegant design and professional-grade imaging capability, it offers a rich plethora of features to VR content professionals.\nFounded in January 2016, Kandao Technology is a high-tech company specializing in virtual reality technology research and\ndevelopment. Dedicated to providing high-end professional imagery software solution and hardware manufacture for VR/AR content creation, Kandao Technology is committed to delivering evolutional digital imaging products that will change the way of how people see and connect with the world.\nThe camera uses six fish-eye lenses to capture an immersive 360, 3D view. The camera is available in two formats, the Obsidian R which prioritizes resolution with 8K video at 30 fps, and the Obsidian S that puts the focus on frame rate, and can boast of 4K video at a speedy 120 fps frame rate. Both cameras have three different video modes, as well as the ability to record RAW still photos in the DNG format. Only a 3D 360° panorama video can give a true sense of immersion, a key to bringing the virtual reality world to its audience. Kandao Obsidian utilizes a deep-learning stitching method, automatically generating high quality stereoscopic panoramas.\nThe camera, named the Obsidian has garnered a \"Best Of Innovation Honoree\" award at CES 2017 in Las Vegas as well as a German design award winner in 2018 and was one of the cameras singled out for praise by Facebook's VR engineer director, Brian Cabral.","domain":"optical_engineering"}
{"url":"http://www.makeyourtech.com/index.php?id_product=346&id_product_attribute=0&rewrite=fire-flame-sensor-module&controller=product&id_lang=1","date":"2019-12-08T21:06:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540514893.41/warc/CC-MAIN-20191208202454-20191208230454-00317.warc.gz","language_score":0.7248697280883789,"token_count":183,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__85185200","lang":"en","text":"Fire /flame sensor module\nSecurity policy (edit with Customer reassurance module)\nDelivery policy (edit with Customer reassurance module)\nReturn policy (edit with Customer reassurance module)\nThis module is sensitive to the flame and radiation. It also can detect ordinary light source in the range of of a wavelength 760nm-1100 nm. It can be used as a flame alarm or in fire fighting robots.\nDetects a flame or a light source of a wavelength in the range of 760nm-1100 nm.\nDetection range: up to 100 cm.\nAdjustable detection range.\nDetection angle about 60 degrees, it is sensitive to the flame spectrum.\nComparator chip LM393 makes module readings stable.\nOperating voltage 3.3V-5V.\nDigital and Analog Output.\nPower indicator and digital switch output indicator.\nNo customer reviews for the moment.","domain":"optical_engineering"}
{"url":"http://www.westcoast-optics.com/glass-dome-3937629.html","date":"2018-07-18T19:51:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676590329.25/warc/CC-MAIN-20180718193656-20180718213656-00407.warc.gz","language_score":0.8316405415534973,"token_count":510,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__48998169","lang":"en","text":"|Home||» Products||» Glass Dome||» Glass Dome|\n- Minimum Order Quantity\n- Unit of Measure\n- subject to quantity required USD ($)\n- Optical glass, fused silica, Sapphire, Si, Ge, ZnS, MgF2...\n- dia 10 - 400mm\nA dome is composed of two parallel surfaces, which are curved. Compared with any other optical components, it has no optical effect in the optical design.\nDomes can be used in pods and missiles. They are designed to protect electronic detectors and sensors from moving particles, water and corrosives while extending their viewing angles. Also they are ideal for underwater environments and in applications such as camera dome ports and submersible window.\nWe provide hemisphere domes and hyperhemisphere domes. They are produced by polishing and can be manufactured to specification from a variety of materials. Optical glass, fused silica, sapphire, IR crystals, as well as transparent ceramic are commonly used.\nN-BK7 or equivalent, offers a tough, cost effective solution for visible range applications while Fused Silica is ideal for wavelengths below 400nm.\n- With different shape, hemisphere, hyper hemisphere, cutting\n- A variety of materials available\n- From small to big size, diameter up to 400mm\nBK7, Fused silica, Sapphire, Si, Ge, GaAs, ZnS, ZnSe, MgF2, Spinel, IR glass, etc.\ndia 10 ~ dia400mm\n+/- 0.04 - +/- 0.2mm\n+/- 0.02mm ~ +/- 0.15mm\nR10 ~ infinite\n40/20 ~ 80/60\nLambda/2 ~ 4 Lambda\n0.1 ~ 1.0\n30 arc seconds - 5 arc minutes\nHEBBAR coating, diamond like coating, filter coating, beamsplitter coating, protective coating, etc.\n< 3% max\n- FOB Port\n- Fuzhou China\n- Supply Ability\n- 500 Per Month\n- Delivery Time\n- 5 Week\n- Sample Available\n- Sample Policy\n- Sample costs shipping and taxes has to be paid by the buyer\n- Packaging Details\n- Provide our standard package\n- Main Export Market(s)\n- Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Australia, Asia\n- Main Domestic Market\n- All India","domain":"optical_engineering"}
{"url":"https://www.tvfire.com/products/magic-vision-glasses/","date":"2019-09-16T10:57:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514572517.50/warc/CC-MAIN-20190916100041-20190916122041-00124.warc.gz","language_score":0.9054179787635803,"token_count":320,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__63351813","lang":"en","text":"- Polarized blue mirrored lens blocks out harmful UV in daytime sun\n- Amber lens reduces blinding glare at night or increases definition on days with less sunlight\n- Electro Clear lens makes any electronic screen easier to read, indoors or out\n- Powerful magnetic frames hold lenses firmly in place\n- Easily change lenses with a snap\n- No clips or holders, just super strong magnets\nMagic Vision Glasses\nThe TVFIRE Magic Vision Glasses is a new concept in the field of vision glasses. The basic purpose of these glasses is to provide adequate assistance to the wearer regardless of the day and night. These glasses actually come with a three in 1 pack that includes the transparent lenses. This lens can be used to protect the eyes of the wearer from any foreign material as dust, dirt or small particles. Users can wear the transparent lens all the time as it doesn’t affect the normal eyesight of the user. Furthermore, the clear lens helps to read text from the several electronic devices as ATM machines, tablets, smartphones and so on.\nThe TVFIRE Magic Vision Glasses is accompanied by two different lenses as the polarized lens and the Amber lens. We will discuss the benefits of both the lenses in detail. The polarized lenses are the much improved form of the traditional tainted sunglasses. Moreover, these types of sunglasses have gained tremendous amount of appreciation and popularity over other sunglasses because of their distinctive features. When it comes to benefits, then there are countless benefits of the polarized lenses. These glasses are designed for all those individuals who fond of spending much of their time in outdoor activities.","domain":"optical_engineering"}
{"url":"http://versnalles.cf/vikic/celestron-skymaster-2762.php","date":"2019-10-18T07:28:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986677964.40/warc/CC-MAIN-20191018055014-20191018082514-00122.warc.gz","language_score":0.8500756025314331,"token_count":390,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__14956057","lang":"en","text":"Online shopping for Celestron from a great selection at Electronics Store.Celestron C2570: The Celestron 25 x 70mm SkyMaster gives you seriously high power at a surprisingly low price.Each SkyMaster model features high quality BAK-4 prisms and multi-coated optics for enhanced contrast.\nWhether you are an astronomer or like to do some high magnification panoramic terrestrial observation, the SkyMaster series guarantees crisp and.\nSkyMaster models feature high quality BAK-4 prisms and multi-coated optics for enhanced contrast.Its large aperture and 15x magnification is ideal for astronomical and terrestrial viewing.Despite a light weight design, the SkyMaster 15x70 have a nice weighty feel that gives users an assured feel of quality.\nFind great deals on eBay for skymaster binoculars and celestron binoculars.\nWe carry products from Antares, GSO (Guan Sheng), Blue Fireball, Meade, Baader Planetarium, William Optics, Oberwerk, Telrad, Lumicon, Celestron, Rigel Systems, David Chandler Company and under our own Agena label.Celestron 20 X 80 SkyMaster Binocular has 20x magnification porro prism being suitable both for terrestrial and astronomical view.Due to a 27-day-old moon, the sky will also be dark enough to enjoy the spectacle.I read Astronomy Magazine and in one of their article comparing binoculars, the Celestron Skymaster 15x70 were rated one of the best buys for your money.\nThese features produce improved vision with brighter resolution, which is of top importance for quality binoculars.Agena AstroProducts - Telescopes, Binoculars and Accessories for Astronomy Enthusiast with FREE US Shipping.SkyMaster models feature high quality BaK-4 prisms and multi-coated optics for enhanced contrast.","domain":"optical_engineering"}
{"url":"https://dashburst.com/explore/page","date":"2020-07-08T08:35:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655896905.46/warc/CC-MAIN-20200708062424-20200708092424-00393.warc.gz","language_score":0.9135242104530334,"token_count":770,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__45948425","lang":"en","text":"At present, most of the professional non-contact scanners in the market adopt the arrangement of the imaging lens and linear CCD. When scanning books, ancient books, newspapers and other original parts, use the change of distance to maintain the correct focus. In the scanning process, the linear CCD sensor will capture the information in the original in the order of red, green and blue lines. When the CCD processor converts these lines into the correct order, the image is composed of the full resolution of RGB value, without the phenomenon of lacking colour channel of matrix CCD.\nThe linear CCD sensor can convert the light signal on the surface of the original book into an electrical signal. The colour filter provides a very high colour saturation for red, green and blue continuous CCD elements, which is the characteristic of a typical linear CCD scanner. The pixel size of high-quality linear CCD is quite large, 10 μ m × 10 μ m is a typical pixel size value. Larger pixel sizes can help reduce noise and other possible effects on image quality.\nIn the scanning system, reducing the lens quality has a great influence on the image quality. However, if compared with the lens in the matrix CCD sensor module, the effect is much smaller. Because only the middle part of the lens is used effectively when the lens is collecting images. To get the same image quality as linear CCD, the lens of a matrix CCD sensor must be twice the diameter of the linear CCD sensor. Even in this way, the matrix CCD lens will have an obvious colour difference, geometric distortion and strong loss at the corner.\nMatrix CCD sensor module uses a planar CCD composed of very small pixels. At present, the matrix CCD sensors are all arranged on a standard Bayer filter by two green, one red and one blue pixel according to the rule of four times. By using this technology, two times of green channel and four times of red and blue channel are reduced in image acquisition. Therefore, compared with a linear CCD sensor, the biggest disadvantage of matrix CCD is that it will produce quite a lot of noise, and the collected colour is not accurate. These matrix CCD image sensors are not suitable for scanners because they are good at taking pictures rather than scanning. The original intention of the matrix CCD sensor design is not to replace the scanner design, but to get different images according to the different focal length of the target at different far and near positions.\nIf you still have confuse on how to buy a properly a3 book scannerocr document scanner, multi page scanner or camera scanner,please contact us for more suggestions.\nSize matters – our goal when we founded iCodis was to accelerate the development of increasingly small and powerful devices. To achieve this exciting dream, we brought together a team of highly skilled engineers and developers to create innovative and futuristic products.\n#On_page SEO looks at what your #site/your #page is about. #Off_page #SEO looks at how #authoritative & popular your #site. bit.ly/35DEk3Z #seotraining #SearchEngineOptimization #searchenginemarketing #SearchEngine #SEM #onpages #offpage #learning #TrainingCourse #learn\nContent marketing is the #heart of your #SEO efforts. It has always been that way but is even more so now because #Google is so much more effective at understanding the context of content and how it is shared. Hire an affordable, expert and also a reputed agency of #content #marketing in Fort Worth or Dallas to get higher rank in the #search #engine #result #page. For more in details visit the website: ozmentmedia.com/our-so…","domain":"optical_engineering"}
{"url":"http://www.lanl.gov/science/NSS/issue1_2011/story2d.shtml","date":"2017-04-25T04:42:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120101.11/warc/CC-MAIN-20170423031200-00048-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.9224544763565063,"token_count":554,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__66129643","lang":"en","text":"Provides Mars Rover\nThe ChemCam instrument has completed the first short leg of its long trip to Mars, arriving at the Jet Propulsion Laboratory from Los Alamos National Laboratory for installation aboard the next Mars rover, due to launch in late 2011. The NASA Mars Science Laboratory project's rover, named Curiosity, will carry the newly delivered laser instrument to reveal which elements are present in Mars' rocks and soils up to 7 meters (23 feet) away from the rover.\nBy firing intense pulses of laser light at distant targets, the ChemCam instrument uses a technique called laser-induced breakdown spectroscopy (LIBS) to measure the chemical content of the target samples. The laser beam vaporizes a pinhead-sized area on the target. A spectral analyzer then peers closely at the flash of light from the vaporized sample. Atoms ablated in ionized states emit light and each sample yields spectral emissions at unique wavelengths, revealing the elements present in the material.\nLike fingerprints, the emission line wavelengths can be matched to a library of known chemical compounds. Even dust-covered rocks will reveal their inner secrets to the ChemCam interrogation. On such samples, the laser first cleans away the dust or weathering coatings before performing the rock analysis. There is no need to drive the rover to within reach of the target rock.\nChemCam is the first instrument of its kind. \"We brought together a lot of new ideas to make this instrument a reality. It has been exciting to see this invention come together,\" said Los Alamos National Laboratory's scientist Roger Wiens, the instrument's principal investigator.\nThe goal of Curiosity, a rolling laboratory, is to assess whether Mars ever had an environment capable of supporting microbial life and conditions favorable for preserving clues about life, if it existed. Curiosity is by far the biggest and most capable robot ever destined for Mars. It is nuclear-powered and comparable in size to a small car. The capsule that will be used to carry the rover into the Mars atmosphere is even larger than the Apollo capsule that housed three astronauts for missions to the moon. ChemCam is one of 10 instrument packages contained on the rover. The other instruments are capable of identifying minerals, sniffing out organic materials, observing the weather and radiation environment, and drilling several centimeters into the Martian rocks.\nThe ChemCam instrument was conceived, designed, and built by a U.S.-French team, led by Los Alamos National Laboratory in New Mexico, the Jet Propulsion Laboratory in California, and France's Centre for the Study of Radiation and space agency, Centre National d'Études Spatiales.\nCuriosity is due to launch from Florida in November of 2011 and is expected to arrive at Mars in August 2012.","domain":"optical_engineering"}
{"url":"https://skatterbzxe.web.app/60229/56542.html","date":"2023-03-25T04:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296945315.31/warc/CC-MAIN-20230325033306-20230325063306-00194.warc.gz","language_score":0.8640174865722656,"token_count":1967,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__100216555","lang":"en","text":"Fluorescein. Medicinsk sök\nPDF Gastrointestinal tract volume measurement method\nThe same solution was used to record an emission wavelength scan of ICG on a Hitachi F4500 fluorometer (at an excitation of 633 nm). Spectra are normalized to the peak values. The laser line used for confocal fluorescence microscopy is The absorbance of disassembled nanoparticles was measured by UV-Vis spectroscopy at 780 nm. The amount of ICG in levan nanoparticles was estimated by comparing of ICG absorbance calibration curve.\n- Dansens hus program\n- Disputation medicinska fakulteten uppsala\n- Bra team building övningar\n- Bror printzell\n- A kassa if\n- Santander lån bra\n- Utesluten advokatsamfundet\n- Johan wilson amex gbt\nICG in dextrose solution (DEX) exhibited similar absorbance to that in DW, with a Aug 15, 2013 Our analyses of absorption and fluorescence spectra indicate that the peak absorbance of ICG associated with its monomeric form increases in May 18, 2017 It has an absorption maximum of ~780–800 nm (depending on the The ICG absorbance signal in liposomes remained stable even after For comparison, absorption spectra of ICG dissolved in water and BSS plus solution were measured in relation to ICG concentration and time using an Jul 22, 2015 RGD-PLS-ICG and PLS-ICG had a higher UV absorbance spectrum and stability than free-ICG. Confocal microscopy and flow cytometry Absorbance and fluorescence value of ICG. ICG emits a flash of light with a wavelength of 806nm. The peak spectral absorption of ICG diluted in human blood is Feb 25, 2012 “The key with ICG is that, because of the absorption characteristics of the eye, you are looking at the infrared spectrum of wavelength, so that May 27, 2018 At World Laparoscopy Hospital now we have atarted using ICG during absorption averaging at 805 nm in blood plasma or simply the blood. Fluorescein and ICG Angiography are used to image the posterior layers of the eye. Generally it allows the physician an better understanding of the disease From UV to NIR and longer wavelengths, absorbance measurements provide valuable information about the chemical composition of materials in all states of Indocyanine Green Angiography. Kirby R. Miller Jervey Eye Group Greenville, S.C..\nThe amount of ICG in levan nanoparticles was estimated by comparing of ICG absorbance calibration curve. The percentage efficiency of ICG encapsulation was calculated by Eq. (1): ICG encapsulation efficiency (%)(PBS= (1) 1 0 0 absorbance values below A 1, and an asymptotic temperature limit for absorbance values above A 1.\nSamtidig överaktivering av wnt / ß-catenin och tgfp-signalering\nConsidering the in vivo conditions, ICG stability of each ICG sample was also checked at 37 C. The absorbance of both of free and emulsion-loaded ICG gradually decreased during 12 days of 2018-03-29 · The ICG degrades quickly in aqueous solutions and loses its absor-bance peak at 800nm . Absorbance is used to measure the leakage from the liposomes and degradation of the ICG molecules. The ICG amount was analyzed using a Varioskan Flash plate reader in black clear bottom well plates (Corning Inc., Corning, NY, USA).\nAU 710880 B2 - Nucleic Acid And Amino Acid Sequences\nICG is an indicator and a weak acid with a pKa of 3.27. In bile stabilized with 25% methanol, the precision of the method (CV) is 5% and the accuracy is 106–127%. An important motivation for using ICG in such studies is that its absorption peak (∼800 nm) and its most intense fluorescence (∼820 nm) are at wavelengths for which blood and other tissues are relatively transparent,. The peak optical absorption wavelength of ICG is approximately 800 nm, with a fluorescence wavelength of approximately 810 nm in water and 840 nm in the blood. These wavelengths cannot be observed by the naked eye, while the use of video camera with high sensitivity in the near-infrared wavelength is used for measuring ICG fluorescence.\nThe photobleaching of ICG have been previously demonstrated as a result of a process involving photo-sensitization to form 1 O 2, dioxetane formation, and then dioxetane cleavage resulting into …\nFig. 5 Absorbance spectra normalized to the monomeric peak =780 nm at t=0 for both freely dissolved ICG and MCs at 48 h of incubation at 40C.\nBasta tecknade filmer\nThe hydrodynamic size, polydispersity, and zeta potential of liposomal ICG were measured using dynamic light scattering (Zetasizer Nano ZS90; Malvern Instruments). A) ICG was dissolved in distilled water at a concentration of 3 µg/ml and the absorbance (grey cycles) was measured on a Hitachi U-2000 spectrophotometer. The same solution was used to record an emission wavelength scan of ICG on a Hitachi F4500 fluorometer (at an excitation of 633 nm).\ndynamisk in vivo Imaging av upptag och clearance process av ICG i i sagittal sinus (SS) på grund av ökningar i optisk absorption av icg vid\nav GA Sonn · 2016 · Citerat av 40 — green (ICG) has been utilized clinically in prostatectomy as a probe. Cy5 Maleimide (649 nm absorbance, 670 nm emission) was purchased\nWe can measure 10-7 absorption changes with lock-in de- tection. Detailed The laser-induced effect appeared to be confined to the ICG stained area of the\ngreen (ICG) into bladder tumor was utilized to enhance PAI image contrast.\nsofielund skola malmö\nsvenska drama filmer\nmau bibliotek kontakt\nStefan Karlsson - Researcher at RISE Glass - RISE Research\nHowever, the major challenge in applying ICG molecules for antitumor therapy is associated with their instability in aqueous conditions and rapid clearance from blood circulation, which causes insufficient bioavailability at the tumor site. B) Normalized absorbance profiles of DPBF in solutions with d‐Cu‐LDH, free ICG, and d‐Cu‐LDH/ICG ([DPBF] = 20 μg mL −1, [Cu] = 100 μg mL −1, [ICG] = 20 μg mL −1). “+L” means 808 nm laser irradiation at the power density of 0.5 W cm −2 for 10 min.\n- Puls geografi europa facit\n- Bertil hult house\n- Budget online\n- Tommy möller svensk politisk historia\n- Sjukgymnast erik leksand\nPulsed Laser Diode-Based Desktop Photoacoustic - JoVE\nUsing the NIR/ICG green mode offers intensive fluores-cence and detailed delineation against the surrounding tissue. ICG absorbs red light about 740~800nm [ 13–16] and emits fluorescent light peaking at 830nm in blood and 820nm in aqueous solution [ 17–19 ]. The quantum efficiency of ICG is low, 0.3% in water and 1.2% in blood [ 20 ]. It emitted most intense fluorescence light at 40μM in triple distilled water under 740nm light source [ 21 ]. ICG has somewhat bizarre light absorption behavior as a function of concentration because it tends to aggegrate in water at high concentrations. This means that the effective absorption does not increase linearly with increasing concentration. Furthermore, ICG tends to degrade with exposure to light.\nEtt molekylproteinkomplex fluorofor med högt kvantitetsutbyte\nThe main medical use of ICG arises from its ability to bind with albumin39,40 and is therefore extensively used in the labeling of HSA.41,42 ICG has a binding constant of 5.7 43105 M 1 to HSA and results in a bathochromic shift (red shift) of the ICG absorbance (ESI†, Fig. S1) which in turn increases the fluores-cence quantum yield (f F = 0.040). the ICG absorbance at 785 nm with the standard curve of absorbance of free ICG dissolved in 80% methanol at various concentrations. The hydrodynamic size, polydispersity, and zeta potential of liposomal ICG were measured using dynamic light scattering (Zetasizer Nano ZS90; Malvern Instruments).\nThe Molar Extinction Coefficient Defined.","domain":"optical_engineering"}
{"url":"http://www.ades-dijon.fr/eyegoggles/burundi_protective_e_928.html","date":"2020-08-09T08:41:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439738523.63/warc/CC-MAIN-20200809073133-20200809103133-00095.warc.gz","language_score":0.8346457481384277,"token_count":3115,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__107201774","lang":"en","text":"burundi protective eyewear size\n- Xicheng Science & Technology Building High-tech Development Zone, Zhengzhou, China\n- [email protected]\n- >Online Chating\nSafety Glasses by Wiley X | Shop Protective Eyewear Online\nAll protective eyewear, including safety sunglasses, by Wiley X is ANSI certified. Every pair of glasses by WileyX is made while keeping the eye safety of the user in mind. You simply cannot go wrong by choosing WileyX as your protective armor against hazards.Protective Eyewear | Best Place To Buy Wiley X Glasses OnlineProtective Eyewear helps where regular glasses dont. 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Shop with confidence. , burundi protective eyewear size eyeglasses eyewear frames eyewear frames men protective eyewear sunglasses eye glasses eyewear frames women safety glasses glasses goggles eyewear frame. Refine. more Format , burundi protective eyewear size see all Bridge Size. 10 mm - 15 mm (2,499) 16 mm - 20 mm (16,483) 21 mm - 27 mm (2,046 , burundi protective eyewear size\nSafety Glasses Goggles Lab Eye Protection Protective , burundi protective eyewear size\nSpecification: Item Type: Protective Eyewear Material: Environmentally Friendly ABS Lens Color: Transparent Product size: 16.5 * 14 * 5.5CM (unfolded size) Package List: 1/2/4/10/20 * Protective EyewearIndia Eyewear Market Industry Analysis and Forecast , burundi protective eyewear sizeIndia Eyewear Market is expected to reach US$ XX Bn by 2026 from US$ XX Bn in 2018 at a CAGR of XX%. Eyeware are used for protection, fashion and to improve visuals. As Indian market is concerned their are many factors, that are driving the Indian market.Safety Glasses Goggles Lab Eye Protection Protective , burundi protective eyewear sizeMain Features. Feature: 1.The strong and durable The lens is made of the high-performance PC with excellent impact resistance. No optical distortion. The clear lenses let you see everything with zero distortion, are anti-fog and scratch resistant. The surface of the arc mirror is beautiful and generous. 2.Widely usedIt is used for high-speed particle impact and liquid splash , burundi protective eyewear size\n500nm-1800nm Laser Protection Goggles , burundi protective eyewear size - banggood, burundi protective eyewear size\nOnly US$4.21, buy best 500nm-1800nm laser protection goggles safety glasses spectacles lightproof protective eyewear sale online store at wholesale price.Sports Aviator Gold Glasses with Protective Side Shields , burundi protective eyewear size2 days ago · Teardrop, gold-rimmed, 90s safety glass, aviator with unique, clear temples and side shields. Wear them as a fashion statement, and or, for eye protection. New old stock. Never worn. Great condition. NOS deadstock Made in Taiwan FIT INFORMATION 60mm Eye Size 17mm Bridge 145mm Temple/Arm Width 5Mask made in usa | EtsyRequired Cookies & Technologies. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the site work correctly for browsing and transactions.\nShooting & Safety Glasses - Glasses Protective Eyewear\nShooting Safety Glasses Shooting Glasses Yellow Clear Shooting Glasses Shooting Glasses Case Ballistic Safety Remington Shooting Glasses Ess Ice Shooting Sun Glasses , burundi protective eyewear size3M Safe Lab Glasses Protective Eye Goggles Chemical , burundi protective eyewear size3M Safe Lab Glasses Protective Eye Goggles Eyewear Anti-Fog New ships from USA. C $12.49 + C $15.27 Shipping","domain":"optical_engineering"}
{"url":"https://www.gaaptuff.com/blog/types-and-uses-of-high-performance-glass/","date":"2024-04-12T21:00:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816070.70/warc/CC-MAIN-20240412194614-20240412224614-00134.warc.gz","language_score":0.9061469435691833,"token_count":1073,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__91500361","lang":"en","text":"Glass has evolved far beyond its traditional role as a mere transparent barrier. In the realm of architecture and design, the demand for high-performance glass is steadily rising. As a leading glass processing company in India, www.gaaptuff.com is at the forefront of this evolution, providing innovative solutions to meet diverse needs. This blog explores the various types of high-performance glass and their applications, shedding light on the unique features that set them apart in the industry.\nWhat Sets High-Performance Glass Apart?\nThe Marvels of Tempered Glass\nTempered glass is a game-changer when it comes to safety and durability. Engineered through a process of controlled thermal or chemical treatments, tempered glass is significantly stronger than standard glass. It undergoes rapid cooling to create a balanced internal structure, making it resistant to breakage. In the event of breakage, tempered glass shatters into small, blunt fragments, reducing the risk of injury.\nGaaptuff.com, one of the best glass companies in India, specializes in providing top-quality tempered glass. This type of glass finds wide applications in sliding shower glass doors, staircase railing designs with glass, and various architectural elements where safety and strength are paramount.\nThe Crystal Clarity of Low-E Glass\nLow-emissivity (Low-E) glass is designed to regulate the amount of heat and light that passes through it. This high-performance glass is coated with a thin, invisible layer of metal oxide that reflects infrared light while allowing visible light to pass through. The result is improved insulation and reduced energy consumption, making Low-E glass an excellent choice for sustainable building designs.\nGaaptuff.com’s commitment to sustainability is evident in its offerings of Low-E glass solutions. This type of glass is commonly used in energy-efficient windows, glass facades, and other applications where thermal performance is a priority.\nDynamic Designs with Laminated Glass\nLaminated glass is a versatile solution that combines layers of glass with an interlayer of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA). The lamination process enhances the structural integrity of the glass, providing additional strength and safety benefits. In case of breakage, the interlayer holds the shattered glass in place, preventing it from falling apart.\nGaaptuff.com, as a leading toughened glass manufacturer, offers a range of laminated safety glass options. Beyond safety, laminated glass allows for dynamic design possibilities, making it an ideal choice for glass partitions, decorative elements, and structural glazing.\nSmart Solutions with Switchable Glass\nSwitchable glass, also known as smart glass or privacy glass, offers a futuristic solution for controlling transparency. Through the application of a special film or electrochromic technology, switchable glass can change from transparent to opaque with the flip of a switch or the push of a button. This feature is especially useful in spaces where privacy is a concern or where natural light needs to be optimized.\nGaaptuff.com caters to the demand for smart solutions by providing high-quality switchable glass options. Applications include conference rooms, healthcare facilities, and residential spaces where the ability to control visibility is essential.\nInsulating with Insulated Glass\nInsulated glass, commonly known as double-glazed or IGU (Insulating Glass Unit), is designed to enhance thermal insulation. It consists of two or more glass panes separated by a spacer filled with air or gas, creating a sealed unit. This design reduces heat transfer, making insulated glass an effective solution for controlling indoor temperatures and improving energy efficiency.\nGaaptuff.com, with its expertise in glass manufacturing, offers insulated glass solutions suitable for various climates and building types. Common applications include windows, doors, and facades in both residential and commercial structures.\nApplications of High-Performance Glass\nThe versatility of high-performance glass extends to a myriad of applications, showcasing its adaptability in diverse settings:\n1. Sliding Shower Glass Doors: Tempered glass, renowned for its strength and safety features, is an ideal choice for sliding shower glass doors. Gaaptuff.com’s tempered glass options combine functionality with a sleek and modern aesthetic.\n2. Staircase Railing Design with Glass: Laminated glass opens up innovative possibilities in staircase railing designs. Its structural strength and the ability to incorporate decorative elements make it a popular choice for both residential and commercial spaces.\n3. Glass Partitions: Laminated glass and switchable glass play a crucial role in creating modern and flexible interior spaces. Glass partitions contribute to an open and airy environment while maintaining privacy and functionality.\nIn conclusion, the evolution of high-performance glass has revolutionized the way we approach design, safety, and energy efficiency in architecture. As a leading glass processing company in India, www.gaaptuff.com continues to push the boundaries of innovation, offering a diverse range of high-quality glass solutions. From tempered glass for robust safety to switchable glass for smart and dynamic environments, the applications of high-performance glass are vast and varied. As the demand for sustainable and efficient building materials grows, high-performance glass stands as a beacon of progress in the field of modern architecture.","domain":"optical_engineering"}
{"url":"https://www.innovamed.com/innova-insights?body_value=&page=1","date":"2021-03-04T06:19:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178368608.66/warc/CC-MAIN-20210304051942-20210304081942-00144.warc.gz","language_score":0.9280940890312195,"token_count":359,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__182436939","lang":"en","text":"Take a Vacation from Payments\nPURCHASE ANY capital equipment now & do not pay 'til 2016!\nOFFER VALID until August 31, 2015.\nTo learn more or to get in touch with a Representative in your area, click here.\nDry eye assessment and tear testing are made easy with the new OCULUS Keratograph 5M\nThe new high-resolution colour camera and integrated magnification changer open up entirely new perspectives in professional tear film analysis including a quintet of analyses:\n· Non-Invasive Tear Film Breakup Analysis\n· Lipid Layer Analysis\n· Tear Meniscus Height\n· Bulbar And Limbal Redness\nINNOVA is excited to announce the launch of NIDEK's New Retina Scan Duo™ Optical Coherence Tomography (OCT), featuring a high definition OCT and full featured fundus camera in one compact system.\nThe Retina Scan Duo™ features NIDEK’s 3-D auto tracking, auto shot, and user-friendly interface allowing rapid and easy capture of excellent quality images. Alignment is simple and both the OCT and colour fundus images are captured in one single shot. Customized imaging workups are easily set so any technician can immediately capture exceptional images.\nThe number of young people who are being diagnosed with serious eye conditions is thought to be growing, according to a survey of Optometrists released today. The study saw two thirds of Optometrists say they have seen an increase in conditions such as Dry Eye disease and Blepharitis, while almost half are concerned that people will start losing their sight or suffering from conditions such as glaucoma, cataracts and age-related macular degeneration at a younger age.","domain":"optical_engineering"}
{"url":"https://lightingtip.com/how-led-lights-performance-are-affected-by-heat/","date":"2022-12-06T20:49:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711114.3/warc/CC-MAIN-20221206192947-20221206222947-00728.warc.gz","language_score":0.9126682877540588,"token_count":1397,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__203800399","lang":"en","text":"The misunderstanding of the heat of the lamps comes from the warmth of the sun and classic incandescent or halogen lamps.\nIn fact, its warmth comes from a large amount of infrared radiation in its spectrum. That may be high enough to use incandescent lamps to keep the food in the fast-food restaurant warm.\nIn contrast, white LEDs and fluorescent lamps have a cold light source because they do not have infrared radiation.\n- Then why do LED lamps heat up?\n- Spectral comparison of LED (blue line), fluorescent (green line) and sun (orange line) and incandescent/halogen (purple line)\n- The light output will temporarily decrease at high temperature\n- Permanently reduced LED light output (lumen attenuation)\n- SOLERIQ® S | OSRAM\n- The color temperature of the white light changes\n- LED is completely faulty\n- Common heat dissipation methods for LED lamps\nThen why do LED lamps heat up?\nFirst, what is the cold light source?\nThe so-called cold light source is an illuminating light source that contains almost no infrared spectrum.\nSpectral comparison of LED (blue line), fluorescent (green line) and sun (orange line) and incandescent/halogen (purple line)\nAn LED is a cold light source, and the light it emits is almost visible light. The visible wavelength is between 380 and 780 nm.\nThe electric energy of the LED light source is converted into light energy of only about 30%, and the other energy is converted into heat energy, which is transmitted by heat conduction. Therefore, LED lamps will be hot.\nThe traditional incandescent lamp is the heat source. Traditional incandescent lamps convert only 2-3% of electrical energy into light energy (visible light), and the rest is radiated in the form of infrared light.\nThe cold light source is characterized by almost all other energy being converted into visible light, and other wavelengths of light are few.\nThe thermal light source is different. In addition to visible light, there is a large amount of infrared light, and a considerable part of the energy is converted into infrared light that does not contribute to the illumination.\nSo will this heat affect LED lamps?\nThe answer is yes. And some of the effects are irreversible.\nThe light output will temporarily decrease at high temperature\nTemperature not only affects the life of the LED for a long time but also has a direct impact on its performance. Just as a mobile phone is below zero degrees Celsius, the response speed of the mobile phone will slow down and the battery will run out faster. The LED output will be affected to varying degrees when the LED is too low or too high.\nThe figure below shows the performance of several different brands of LED chips at different temperatures. At 75 ° C, the performance of LEDs may be 5%-70% lower than we expected (in the datasheet).\nPermanently reduced LED light output (lumen attenuation)\nSOLERIQ® S | OSRAM\nBefore the “weakest connection” inside the LED reaches the breakpoint, it and other materials suffer a gradual and permanent abrupt change, permanently reducing the light output of the LED.\n77 degrees Fahrenheit or 25 degrees Celsius is a near-universal temperature standard, and the lighting manufacturer calculates the L70 rating based on this standard. Typically, the LED should be replaced when it loses 30% of its initial light output. The equivalent statement is “Light output is 70% of the initial value(l70)”. This is the actual meaning of LED life, not the time when the LED is completely ineffective.\nThe degradation of the material inside the LED to the speed we need to replace (lifetime L70, 30% light loss) depends to a large extent on the operating temperature, the quality of the material and the design of the LED package. As shown in the two figures, the LED may lose 30% of the light in thousands of hours or more than 200,000 hours.\nThe color temperature of the white light changes\nIn addition to lifetime and performance, temperature also affects the color (color temperature) of white light. Inferior materials or inadequate design can change when exposed to high temperatures, causing the white light of the LED to permanently become almost blue.\nLED is completely faulty\nMost materials that make up an LED will not resist at high temperatures, and the LED will fail when the “weakest connection” reaches the point of the break. This concept is easy to understand.\n70% of LED faults come from excessive temperatures, and at half the rated power, the rate of failure doubles for every 20°C rise in temperature.\nCommon heat dissipation methods for LED lamps\nIn order to provide a practical cooling solution for high-brightness LED luminaires, the cooling technology must be low-energy and suitable for different types of luminaires, with a life similar to or higher than the source.\nLED lamp housing heat dissipation depends on the power level and the place of use. There are mainly the following cooling methods:\nAir hydrodynamic heat dissipation\nAir fluid mechanics uses the shape of the lamp envelope to create convective air, which is the lowest-cost way to enhance heat dissipation.\nThermally conductive plastic case\nFill the thermally conductive material during injection molding of the plastic case to increase the heat conduction and heat dissipation capability of the plastic case.\nThis is the most common way to dissipate heat, using aluminum fins as part of the enclosure to increase heat dissipation.\nThe inside of the fan lamp housing is reinforced with a long-life and high-efficiency fan. However, it is more troublesome to change the fan. This design is more common in large sports lighting fixtures, often with aluminum heat sinking scales.\nThe temperature has so many variables and effects on LEDs. It’s no surprise that buyers in non-professional areas have huge differences in quality and huge disruptions in the market.\nWhen we buy lamps, especially for large lamps, such as floodlights, street lamps, and high bay lights, we must carefully ask the seller for relevant parameters:\n- Chip brand (Nichia, Cree or Osram has always been trustworthy)\n- Lamp shell material (die-cast aluminum material is reliable for heat dissipation)\n- Whether there is a built-in fan. (there is a fan generally means that the product generates a large amount of heat)\n- Warranty period (high-power lamps generally have a 5-year warranty)\nOf course, if we buy low-power lamps, we don’t need to consider so many factors.","domain":"optical_engineering"}
{"url":"http://lunt-ls230.blogspot.com/","date":"2018-05-21T17:00:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864461.53/warc/CC-MAIN-20180521161639-20180521181639-00325.warc.gz","language_score":0.8601041436195374,"token_count":443,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__12717475","lang":"en","text":"We are proud to announce our newest and largest dedicated Hydrogen-alpha telescope. Delivery 01/ 11\nThe LS230THa/PT (pressure tuned) is a complete and dedicated Hydrogen-alpha Solar Telescope with an Image Scale of 3,366\nSoon to become the largest aperture Solar Telescope currently available, the LS230THa/PT will provide the highest level of performance ever produced in a Solar Scope.\nA precision aligned refractor with a fully un-obstructed 230mm Aperture.\nThe 100% unobstructed system will perform to the highest level at both low and high magnifications. Utilizing advanced hi-contrast coatings and the new Doppler True Pressure Tuning system the user will be able to experience an un-paralleled level of visual and imaging performance.\nThe system is designed as a dedicated Hydrogen-alpha telescope. Unlike its smaller LS152THa the system is not modular.\nOptical Aperture: 230mm (Unobstructed)\nTuning: Internal Pressure Tune (Doppler True Tuning)\nImage Scale: 3,366\nFocal Length: 1610mm\nF Ratio: 7\nFocuser: 2\" Starlight Instruments Feather Touch\nMounting: Rings with 12\" Losmandy style plate and carrying handle\nStorage: Aluminum finished hard case with fitted foam\nWeight: 70 lbs (estimated)\nRequired Blocking Filter:\nB3400 straight thru installed in the focuser standard\nIncluded Accessories: (see \"accessories\")\nEyepiece: Lunt Zoom Eyepiece\nSun Finder: Televue Sol Searcher\nMounting: 12\" Losmandy Style Dovetail Plate\nEyepieces: Additional Lunt Eyepieces Available (see \"eyepieces\")\nThe design of the DSII (internal double-stack) will begin in late 2010. Lunt will release description, specifications, and pricing as it becomes available.\nThe LS230HaT/PT is available in only one variation\n* Standard system with B3400 internal blocking filter and standard 2\" Feather touch focuser\nRetail Price $ on request","domain":"optical_engineering"}
{"url":"http://sl-div-bi-pb.web.cern.ch/WelcomeBTV.html","date":"2022-09-26T00:02:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334620.49/warc/CC-MAIN-20220925225000-20220926015000-00270.warc.gz","language_score":0.9119889736175537,"token_count":564,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__118757762","lang":"en","text":"AB - BDI - BL\nBeam Loss detectors, wire scanners and gaseous detectors for the PS complex, SPS and LHC.\nWhen a beam passes through a luminescent screen, part of the deposited energy results in excited electrostatic states in the material from which a light emission at a defined wavelength will follow. The light emission originates in impurity inclusions, the so-called activators, in most of the materials used. Luminescent screens are used in all accelerators during the running-up periods and when problems occur. They allow a direct observation of the beam position and shape on a TV monitor. They are necessarily single-pass monitors.\nA typical proton machine monitor can have three different screens inserted at 45 degrees in the beam path. The mechanism has a fourth empty position which is used for the free passage of the beam through the monitor. A TV camera observes the light spot generated by the beam passage.\nThe screen and the detectors characteristics have to be matched to each other. There are two main type of detectors: TV tubes with various photocathode types (which are more resistant to radiation), and solid-state detectors (CCD sensors, for example).\nThe simplest use of these monitors is to observe the beam-generated light on a TV monitor. In general, a reference grid is deposited on the screen or superimposed optically on the image to get an accurate spatial and dimensional reference. The TV signals can also be recorded on an analog video recorder or on a 'frame grabber' digitizer. For the solid-state detectors, which have a geometrically well-defined matrix structure, it is possible to digitize each picture element (pixel) separately, thus obtaining the best geometrical resolution. Furthermore, owing to their good dynamic range, of the order of 1:1000 in single-shot operation, is is possible to use them to measure beam profiles. These can be used to display density cross-sections, to make projections on a chosen axis, and to plot density contours or 3-D representation of the light, i.e. beam density.\nSome luminescent screens (LS) are provided in LEP, most of them mounted on beam stoppers. Being destructive devices to the beam, they can only be used for exploring the first turn trajectory. They are made of chromium doped Al2O3 plates, 2 mm thick. All screens are placed perpendicular to the beam for better image sharpness and are seen through stainless steel mirrors at 45 degrees and a CCD TV camera.\n|Number of hits: Updated on 20/06/2003. Send your comments and suggestions concerning this page to Jan Koopman.|","domain":"optical_engineering"}
{"url":"https://www.natsafe.net/rothco-binolux-8-24-x-50mm-zoom-binoculars-black/","date":"2019-08-24T07:13:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027319915.98/warc/CC-MAIN-20190824063359-20190824085359-00391.warc.gz","language_score":0.8042634129524231,"token_count":145,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__139706646","lang":"en","text":"Rothco 8-24 x 50MM Zoom Binoculars, Black\n(You save $33.00)\nThe Rothco 8-24 X 50mm Binoculars are a great optical tool for use during field ops, surveillance or even sports activities. Rubber armored for steadfast reliability.\n- 8 Power- 24 Power, 50 MM Objective Lens\n- Fully Coated Porro Prism Zoom Binocular\nRubber Armoring For Extra Protection\nSoft Fold Down Eye-cups\n- Center Adjustment Wheel For Rapid Focusing\n- Coated Optics\n- Red Ruby Coated Lens\n- Neck Strap\nThis product hasn't received any reviews yet. Be the first to review this product!","domain":"optical_engineering"}
{"url":"http://iii-dev.unipv.it/2020/11/29/ensemble-learning-for-remote-sensing-image-processing/","date":"2022-10-07T05:18:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030337971.74/warc/CC-MAIN-20221007045521-20221007075521-00190.warc.gz","language_score":0.8785281181335449,"token_count":253,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__53747138","lang":"en","text":"Speaker: Prof. Peijun Du (Nanjing University, Nanjing, P.R.C.)\nOrganizer: Prof. Fabio Dell’Acqua, PhD Coordinator: Prof. Paolo Di Barba\nOver the last two decades, multiple classifier system (MCS) or classifier ensemble has shown great potential to improve the accuracy and reliability of remote sensing image classification. Although there are lots of literature covering the MCS approaches, there is a lack of a comprehensive literature review which presents an overall architecture of the basic principles and trends behind the design of remote sensing classifier ensemble. This talk will review the remote sensing implementations of MCS and proposes some modified approaches. The effectiveness of existing and improved algorithms are analyzed and evaluated by multi-source remotely sensed images, including high spatial resolution image (QuickBird), hyperspectral image (OMISII) and multi-spectral image (Landsat ETM+). Experimental results demonstrate that MCS can effectively improve the accuracy and stability of remote sensing image classification, and diversity measures play an active role for the combination of multiple classifiers. Furthermore, this survey provides a roadmap to guide future research, algorithm enhancement and facilitate knowledge accumulation of MCS in remote sensing community.","domain":"optical_engineering"}
{"url":"https://kirschenhofer-maschinen-gmbh.de/en/home/bildverarbeitungssysteme/","date":"2023-09-25T22:22:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510100.47/warc/CC-MAIN-20230925215547-20230926005547-00366.warc.gz","language_score":0.90560382604599,"token_count":217,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__19902721","lang":"en","text":"Our image processing systems are designed for a variety of applications and components. This includes e.g. Quality Control, Partial Sorting, OCR (Optical Character Recognition) and Bin-Picking, to name but a few.\nWith over 10 years of experience in the design, programming and integration of image processing systems, Kirschenhofer Maschinen GmbH delivers powerful Vision applications that improve efficiency and quality. Together with our experience in specialized high-speed handling systems, robots and automation, we provide high quality turnkey image processing solutions.\nFor the illumination of image processing systems, we provide solutions from our partner TPL-vision, with which we can provide the best lighting for every requirement.\nWe offer vision applications developed in LabVIEW on basis of niVision , and systems developed in MVtec's Halcon.\nWe have also developed an interface between Halcon and LabVIEW that enables the use of Halcon applications within the LabVIEW runtime environment. This allows us to leverage the strengths of both programming environments in one application.","domain":"optical_engineering"}
{"url":"http://thenightskyii.org/green.html","date":"2023-09-29T22:59:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510529.8/warc/CC-MAIN-20230929222230-20230930012230-00018.warc.gz","language_score":0.9000681042671204,"token_count":129,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__155631594","lang":"en","text":"Green flashes and green rays are optical phenomena that sometimes occur just before sunset or right after sunrise.\nWhen the conditions are right, a green spot is visible above the upper rim of the disk of the Sun.\nThe green appearance usually lasts for no more than a second or two.\nRarely, the green flash can resemble a green ray shooting up from the sunset, or sunrise, point.\nGreen flashes occur because the atmosphere can cause the light from the sun to separate out into different colors.\nGreen flashes are a group of phenomena which stem from slightly different causes, and therefore some types of green flashes are more common than others.","domain":"optical_engineering"}
{"url":"https://en.nirapadnews.com/li-fi-100-times-faster-than-wi-fi/","date":"2020-09-19T16:31:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600400192778.51/warc/CC-MAIN-20200919142021-20200919172021-00043.warc.gz","language_score":0.9244796633720398,"token_count":614,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__181590053","lang":"en","text":"Li-Fi 100 times faster than Wi-Fi\n26 November 2015, Nirapad News: Scientists have reportedly invented a new wireless technology, Li-Fi that transmits high-speed data using visible light communication (VLC).\nWith scientists achieving speeds of 224 gigabits per second in the lab using Li-Fi earlier this year, the potential for this technology to change everything about the way we use the Internet is huge, reports sciencealert.com.\nAnd now, scientists have taken Li-Fi out of the lab for the first time, trialing it in offices and industrial environments in Tallinn of Estonia, reporting that they can achieve data transmission at 1 GB per second – that’s 100 times faster than current average Wi-Fi speeds.\n“We are doing a few pilot projects within different industries where we can utilise the VLC (visible light communication) technology,” Deepak Solanki, CEO of Estonian tech company, Velmenni, told IBTimes UK.\n“Currently we have designed a smart lighting solution for an industrial environment where the data communication is done through light. We are also doing a pilot project with a private client where we are setting up a Li-Fi network to access the Internet in their office space.”\nLi-Fi was invented by Harald Haas from the University of Edinburgh, Scotland back in 2011, when he demonstrated for the first time that by flickering the light from a single LED, he could transmit far more data than a cellular tower.\nThe technology uses Visible Light Communication (VLC), a medium that uses visible light between 400 and 800 terahertz (THz). It works basically like an incredibly advanced form of Morse code – just like switching a torch on and off according to a certain pattern can relay a secret message, flicking an LED on and off at extreme speeds can be used to write and transmit things in binary code.\nAnd while you might be worried about how all that flickering in an office environment would drive you crazy, don’t worry – we’re talking LEDs that can be switched on and off at speeds imperceptible to the naked eye.\nThe benefits of Li-Fi over Wi-Fi, other than potentially much faster speeds, is that because light cannot pass through walls, it makes it a whole lot more secure, and as Anthony Cuthbertson points out at IBTimes UK, this also means there’s less interference between devices.\nWhile Cuthbertson says Li-Fi will probably not completely replace Wi-Fi in the coming decades, the two technologies could be used together to achieve more efficient and secure networks.\nOur homes, offices, and industry buildings have already been fitted with infrastructure to provide Wi-Fi, and ripping all of this out to replace it with Li-Fi technology isn’t particularly feasible, so the idea is to retrofit the devices we have right now to work with Li-Fi technology.","domain":"optical_engineering"}
{"url":"http://www.issia.cnr.it/wp/?portfolio=operation-agreement-cnr-figc-2","date":"2019-02-16T00:51:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247479729.27/warc/CC-MAIN-20190216004609-20190216030609-00473.warc.gz","language_score":0.9385197162628174,"token_count":752,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__157056525","lang":"en","text":"The prototypes that have been developed are based on intelligent vision machines endowed with technological features adequate to the events to detect: Goal Line Monitoring (GF); Offside (FG); Game events monitoring inside penalty area (MEGAR).\nVision machines are based on optical remote detecting sensors which operate in the visible area (with infrared only bandwidth). The features of such sensors depend on each prototype due to the type and dynamic of the events to be detected or monitored. Peculiar features of the sensors are the spatial resolution, ranging from 0.5 Mega-pixel for Goal line monitoring prototype to 2 Mega-pixel for FG and MEGAR prototypes, and temporal resolution (the number of acquired images per seconds) ranging form 25 images/sec for the FG prototype, 50 images/sec for MEGAR prototypes up to 200 images/sec for GF prototype.\nTYPE AND DATE\nSTARTING DATE – …\nENDING DATE – …\nTOTAL COST €: …\nTOTAL FUNDING € …\nCOST € ..\nFUNDING € …\nThe prototypes employ non invasive technologies both for the field structures (field, ball, posts, crossbars, etc.) and the players, referees, assistants and audience. All the machine sensors are placed on the stadium infrastructures (high on the stands) and are quite far from the field so that they do not interfere with audience vision.\nGOAL LINE MONITORING\nThere are two cameras on both sides of each goal post with the focal axis placed in the goal post plane and centering towards the mid point of the white goal line under the cross bar. The position of the four cameras allows the system to evaluate the ball trajectory and to detect if the goal line has been crossed.\nPicture shows how the 6 vision machines, observing in couples the whole field, are placed. Each couple acquires continuously, autonomously and independently digital image sequences and processes them.\nFor each penalty area, two cameras are located on the opposite stands with the optical axes lying on the same vertical centered on the field area to observe and bent so as to intersect the longitudinal symmetry axis of the field. Two more cameras are located on the stands behind the goal in order to monitor the longer side of the penalty area.\nObjectivity and immediacy of detected events\nThe developed systems are able to acquire, record, process and show in real time image sequences of the entire game. Relevant events are detected and reported and are available for a successive analysis in off-line mode.\nSupport to referees and assistants\nrelevant events are communicated by the system in real-time, by radio, to the referees with no game interruption, as provided by the FIFA rules. These technologies do not replace the referees and have to be considered as a support system for decision making, since they provide in real-time the system verdict.\nHardware and software technologies of the systems are respectful of privacy and transparency of the recorded events. Each event detected by the system is recorded as a digital video clip, a kind of electronic report of the event. In this way it is possible to have an objective report of the event both in real and deferred time (eg. for training purposes). The reproducibility of the event and the corresponding processing by the prototypes allow objective assessment of the events and a correct decision making process.\nThe systems have been developed from open and free technologies.\nPatents are available according to the regulations for product engineering.\nSupport systems for the training of referees\nEach system is endowed with a user friendly hardware and software multi-media interface for post-game technical analysis of the recorded events.\nHIGH SPEED CAMERA GOAL DETECTION","domain":"optical_engineering"}
{"url":"https://www.abcarena.com/blog/read/lg_announce_the_next_flagship_smartphone_at_mobile_world_congress","date":"2019-08-23T23:17:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-35/segments/1566027319082.81/warc/CC-MAIN-20190823214536-20190824000536-00377.warc.gz","language_score":0.9403643012046814,"token_count":210,"dump":"CC-MAIN-2019-35","global_id":"webtext-fineweb__CC-MAIN-2019-35__0__81090821","lang":"en","text":"Lg Announce the Next Flagship Smartphone at Mobile World Congress\nAlmost every smartphone manufacturer is coming up with new technologies in the smartphone, especially when it comes to camera everyone is doing better than others. In this race LG announced its next flagship the G8 Thinq at Mobile World Congress, the smartphone will have a Tof front Camera. The sensor for the camera was developed by the Germon Company Infineon until now there are not many details available about the sensor.\nThe new sensor chip will be able to measure the object by capturing infrared light reflected from the object in front of it. So all this mean is the camera will also work effectively in a low light situation and will reduce the work for the processor in capturing the image. The Tof Sensor will deliver extra security for face unlock and for VR application.\nAccording to the president of Infineon's power management and Multimarket division, 3D Camera will be the part of every smartphone in the next 5 years and the company will contribute a share towards it.","domain":"optical_engineering"}
{"url":"https://www.kiwico.com/blog/the-science-behind/the-science-behind-things-that-glow-in-the-dark","date":"2022-08-10T21:25:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571210.98/warc/CC-MAIN-20220810191850-20220810221850-00618.warc.gz","language_score":0.9325630068778992,"token_count":562,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__94484220","lang":"en","text":"How does ultraviolet light make things glow?\nUltraviolet light is a special kind of light that we humans can’t normally see. Imagine the colors of light as notes on a piano — a special piano with rainbow keys. The lowest notes are red, then orange, then yellow, all the way up the keyboard to the highest, tinkliest violet notes. Now imagine that that the rainbow keys are just a tiny section of a giant keyboard with a full range of notes. Those keys just past the purple ones? They’re the UV keys. They play notes, just like the purple keys, but the sound they make is too high-pitched for us to hear. It’s the same thing with UV light. However, just because we can’t see UV light doesn’t mean we can’t see what it does.\nGlowing from UV light is called fluorescence. Fluorescence was named after the mineral fluroite, the first known fluorescent thing that has a bright blue color.\nSo what happens to make a fluorescent material glow? Well, when it gets hit by ultraviolet light, the atoms in that material absorb the UV light and become excited. Think of it like how a trampoline bends to absorb the energy from your bounce. The trampoline can’t hold that energy for long, though, so it releases it by springing you upward. The same thing happens with fluorescence: the atoms release their excited energy as visible light. That’s the glow you see.\nHumans see fluorescence best in the dark because we can’t see ultraviolet light. It’s outside the range of rainbow colors that our eyes respond to. When invisible UV light makes something fluoresce in the dark, it looks to us like that glow is coming out of nowhere. The glow still happens in daylight too, but we don’t notice it as much because of all the other daylight color we see.\nOther animals (like insects, birds, and fish) notice fluorescence even in full daylight because they can see UV light. To them, UV looks like any other color in the rainbow. When a fluorescent thing turns UV light into a different color, it looks to them like if a yellow street lamp made your clothes glow purple instead yellow. Scientists think that the ability to see UV is why some of these animals evolved fluorescent markings.\nFluorescent objects can hide in plain sight. You only see the glow when you turn out the lights and shine a UV light on them. You might be surprised to learn what things can glow at home and out in the world around us.\nTo experiment more with things that Glow in the Dark, try out our crates and DIY projects:","domain":"optical_engineering"}
{"url":"http://handprint.com/ASTRO/ae3.html","date":"2023-09-28T11:31:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510387.77/warc/CC-MAIN-20230928095004-20230928125004-00501.warc.gz","language_score":0.9123052358627319,"token_count":36991,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__169597490","lang":"en","text":"Part 3: The Astronomical Image\nThis page introduces the optical principles necessary to understand the design and performance of astronomical telescope systems the telescope and eyepiece used as a visual instrument with the eye included as a third component. It is one of series: previous pages explained basic optics and telescope & eyepiece combined; subsequent pages discuss optical aberrations, eyepiece designs and evaluating eyepieces.\nIncluded at the end of each page is a list of Further Reading that identifies the sources used and points to additional information available online.\nCollimation (pronounced kôl-ǝ-mā-shŭn) is the condition in which the three optical axes of the objective, eyepiece and observing eye are exactly aligned and coincident. It is the first of two critical adjustments necessary to obtain the peak optical performance from a telescope. Miscollimation arises when any of the three optical axes is out of alignment with the other two (diagram, below).\nObserving through a spherical symmetrical lens from an off axis position has the same optical effect as observing on axis through a distorted or asymmetrical lens. Miscollimation therefore produces aberrations in \"on axis\" or centered star images where optical images are usually flawless. These aberrations most often resemble coma or astigmatism. They are easiest to produce by moving your head from side to side while viewing a star centered in the field of a wide angle eyepiece or in a small focal ratio objective.\nCollimation is the single most important adjustment that most observers will make in their equipment, yet many amateur telescopes are typically found to need adjustment when tested at star parties or dark sky events. Some of those owners paid thousands of dollars to get 1/10 wave optics, but miscollimation can reduce the image quality of a telescope to 1/2 wave or worse.\nAdjustment knobs or screws are usually provided for tuning the collimation in the mirror cells of the primary and secondary mirrors of a Newtonian (Dobsonian) telescope, but only in the secondary mirror of a Schmidt Cassegrain or Maksutov Cassegrain. It is not normally possible to collimate the objective lenses of a refractor, or the corrector plate of a catadioptric (Schmidt Cassegrain, Maksutov Cassegrain, Maksutov Newtonian) telescope.\nThe specific steps necessary to collimate a telescope vary with the telescope design and manufacturer. Nearly all commercially available telescopes are provided with illustrated collimation instructions, and generic instructions are available online. Refer to these first, and memorize the procedure so that it becomes easy to do on your own.\nTake collimation very seriously. Although most commercial telescopes will hold collimation very well once properly adjusted, always check the collimation at the same time you use a star image to evaluate the seeing, and especially if the telescope has been transported in a car and possibly shaken up on the road.\nFocuser Collimation. Collimation in the focuser or drawtube that holds the eyepiece is usually not something the user can adust. In some high end focusers or Newtonian (Dobsonian) telescopes the focuser is secured to a mounting plate with four screws that can be adjusted to pitch or yaw the focuser axis in its fixed position on the side of the telescope tube until the focuser axis points back, via the secondary mirror, to the center of the primary mirror. In most telescopes, including nearly all Schmidt Cassegrains, Maksutov Cassegrains and refractors, the focuser is built into or fixed onto the tube assembly and can't be adjusted.\nThe focuser alignment can be checked with a Cheshire eyepiece (image, below), if the focuser has adjustment screws as part of the tube mounting plate. In cases of extreme misalignment, the mounting screw holes may need to be enlarged or redrilled and the focuser remounted on the telescope tube, but this is very unlikely in nearly all commercial instruments available today.\nFor visual astronomy the focuser clamping mechanism (which consists of a thumbscrew that exerts pressure on a flexible metal collar inside the focuser drawtube) should always be used with eyepieces, despite the annoyance of the eyepiece undercut catching on the clamping band. Clamping ensures alignment with the drawtube and minimize variation in the eyepiece orientation. The eyepiece should first be seated so that the shoulder is in contact with the rim of the drawtube, and only light clamping pressure is required you should be able to rotate the eyepiece in place. To ensure the most even distribution of pressure, the short end of an allen wrench held by the long end can be used to rotate the flexible metal band in its groove so that the gap in the band is located directly opposite the thumbscrew.\nAlignment issues are muddied when a star diagonal (with mirror or prism) is used. In a test of six mirror diagonals available to me I found errors of up to 30 arcminutes in the alignment of the mirror to the optical axis, and to my annoyance I discovered that the most expensive mirror diagonals were not the most accurate. (One was shimmed with a putty adhesive, the other with layers of electrician's tape.)\nSecondary & Primary Collimation. This principal form of collimation is the procedure of aligning the objective lens or primary and secondary mirrors with the eyepiece. It consists of two separate adjustments: the physical position of the focuser and mirror or lens mounting to each other (mechanical collimation), and the alignment of the optical axes of the mounted elements to each other (optical collimation).\nIn Newtonian telescopes, the main aspect of mechanical collimation concerns the rotational and longitudinal alignment of the secondary mirror in relation to the focuser drawtube (eyepiece). This alignment must be confirmed before any other adjustments can be made. There is some debate as to whether an offset of the secondary mirror is necessary, with the majority opinion usually that it has a modest effect. The centering of the primary mirror within the tube assembly usually cannot be adjusted and also does not seem critical, especially as the optical axis of the mirror may not pass through its physical center. Nils Olof Carlin argues that some of the concerns with mechanical collimation are based on myths and misunderstandings.\nThere is a lot of lore on the optical collimation of Newtonian telescopes and several useful web pages that describe the process step by step, for example by Gary Seronik, Bryan Greer, Tim Trott and Nils Olof Carlin (here and here). Things are simpler with a commercial Schmidt Cassegrain format, since only the secondary mirror can be adjusted, for example as described by Starizona and Thierry Legault.\nA number of collimation aids are commercially available to assist the collimation procedure. The oldest and simplest but also remarkably effective is the Cheshire eyepiece (image, right) which is an open metal tube supporting centered crosshairs and capped at the observer end with a pinhole that passes through a polished diagonal plate. The crosshairs are illuminated by a side opening onto this plate, which is turned toward the sky or an observatory light. The Cheshire is placed in the focuser and the crosshairs viewed through the pinhole; their intersection is designed to show the direction of the optical axis created by the focuser drawtube and secondary mirror. In a Newtonian format, the secondary mirror is aligned with the focuser when it is centered on the crosshairs; then the primary mirror is adjusted until the secondary mirror appears centered within it.\nSeveral different laser collimation tools are available, and these are especially popular among the owners of large aperture, small relative aperture Dobsonian telescopes where accurate collimation is more difficult to achieve. Current vendors include (among many) Baader Planetarium, Farpoint, HoTech and Howie Glatter. These tools are effective with Newtonian format telescopes (including Maksutov Newtonians), not Cassegrain format telescopes. HoTech offers a system that is specifically designed for Schmidt Cassegrains, but it is expensive ($400 to $450 at this writing). I have tried both the HoTech and Glatter SCT gadgets, and found that these tools carefully used made my SCT collimation worse rather than better.\nA related tool is the autocollimator, for example the Catseye Collimation devices by Jim Fly. These rely on multiple reflections of a central spot or triangular mirror marker to guide optical alignment. Nils Olof Carlin, Don Pensack and Vic Menard have written about the procedure and its rationale again, with attention to Newtonian collimation.\nStar Collimation. There is however a general method of visual collimation that is very effective and entirely adequate in any type of moderate to large focal ratio (/6 or more) telescope: star collimation. It uses the defocused and focused image of any fairly bright star as the collimation guide.\nStar collimation has three important benefits. First, it requires no special tools or equipment. Second, because the aim of good optics is to form a perfect image, you are directly using the optical output in order to tune the optical quality. Third, facility with star collimation allows you immediately to assess the collimation of any telescope unfamiliar to you or owned by another observer before you use it for any observing task.\nStar collimation requires you to complete mechanical collimation and approximately center the reflected image of the secondary mirror in the primary. It also assumes that you can only adjust the secondary mirror in a Cassegrain format. In other words, you should use daylight inspection and adjustments to eliminate mechanical alignment from the process so far as possible, so that only optical fine tuning needs to be done with the star image.\nOn your first try at collimation, I strongly recommend that you prepare a collimation guide similar to the one I created for my SCT (diagram, right). Draw a circle to represent the eyepiece field of view and mark the top of the field in the orientation that you will view it. (This must be a standard position for both your body and head in relation to the telescope and a fixed orientation of the star diagonal if you use one, as changing the position of either one will \"rotate\" the field of view. See the discussion here.) This circle also represents the back of your secondary mounting or primary mirror cell, so you want to indicate the direction and size of the adjustment effect in the field of view produced by each of the three primary or secondary adjustment knobs or screws. To determine this, first center a star image in a medium power eyepiece, then tighten or loosen only one of the three primary or secondary adjustment knobs or screws (replacing the screws with Bob's Knobs makes this much easier). Return to the eyepiece, and record the direction and size of the shift that results. Note that loosening or tightening the knob has opposite effects but along the same radial direction. Return the star to the center of the field of view and do the same for the other two knobs or screws, taking care to label each one (for example, as a clock face position) so that you can identify it on the back of the mirror mounting. Refer to this diagram each time you tune the collimation.\nThe overall procedure is to start with a low power eyepiece at the first pass, then increase your magnification as you refine the collimation until you finish with your highest practicable magnification. After each use of the adjustment screws, center the star in the field of view and examine the image to check your progress. When the image appears approximately symmetrical at the given magnification, center the star, increase the magnification, adjust the defocus, and continue.\nThe diagram (right, A to E) shows the variety of focused star images, and defocused star images or aperture silhouettes, that you will encounter as collimation proceeds. In all situations you want to make the adjustment that moves either the star image or the shadow of the secondary mirror, as seen in the field of view of your telescope, toward the wider or dimmer side of the star image, defocused star disk or aperture silhouette, as indicated by the dotted arrows in the diagram.\nBecause shifting the star image to the edge of the field has the same effect as a collimation adjustment, some astronomers recommend first moving the star image around in the eyepiece field until it appears most nearly symmetrical, then making the mirror adjustment that will move the image back to the center of the field. I prefer to start in the center because you must evaluate the adjustment with a recentered star image anyway, and if you make a wrong adjustment you will see it directly rather than lose the star beyond the field of view. Either way, this illustrates the importance of evaluating the collimation only when the star is centered in the eyepiece field of view. A reticule eyepiece can help, but so also can an eyepiece with an easily visible edge of field (usually an apparent field of view of 50° or so). With higher magnification, backing your eye away from the eyepiece along the eyepiece optical axis is a simple test: if you can still see the star through the exit pupil when you view from a foot or more away from and squarely above the ocular, then the star is well centered.\nYou start the collimation by centering in the field of view a moderately bright star (magnitude 2 to 3) at a moderate zenith angle (20° to 40° from the zenith). In this orientation, the adjustment screws in either the primary or secondary mirror cells will be easily accessible. Start with a low power eyepiece (that is, with a eyepiece focal length that is about 3 times your objective focal ratio or relative aperture, for an exit pupil of de = 3) and examine the focused star image. If the focused star image shows any coma (A), adjust the mirror to move the star in the direction of the coma \"tail\". Or defocus the star image until the secondary shadow shows clearly (B), then make the adjustment corresponding to the dotted arrow to improve the collimation.\nNext increase the magnification to an exit pupil of roughly de = 1 to 2 and defocus the star until about 5 diffraction rings are visible inside the image disk. In refractors defocusing either in or out will produce an identical image. In SCTs, turning the focusing knob clockwise will shift the objective focal point away from your eye and move the eyepiece focus in the extrafocal direction. In this position the secondary shadow will appear more pronounced (C); this is generally more useful at lower magnifications. Turning the focusing knob counterclockwise will shift the objective focus toward your eye and move the eyepiece focus in the intrafocal direction. In this position the central Poisson spot will appear more clearly (D); this is generally more accurate at higher magnifications. (SCT owners using the mirror adjustment focuser should note the SCT focusing procedure described below.) Either way, adjust the collimation in the direction of the widest or faintest part of the defocused star image.\nAn important clue at this stage, rarely described in collimation guides, is a perfectly even appearance in the inner rings all around the defocused image. Even if the secondary shadow or Poisson spot appears centered, an off center collimation will cause the rings to appear compressed or widened on opposite sides, as illustrated in the two images (below). The side where the rings appear maximally spaced, or where a larger number of separate rings are visible, or the rings are least bright, is the \"wide\" side that indicates the direction of the collimation adjustment.\nEnd the procedure using a magnification high enough to clearly reveal the Airy disk and first diffraction ring (E). Defocus the star only until the outer, brightest ring appears around the Poisson spot: the spot should be exactly centered and the ring should be equally bright all around. Then focus the star and examine the first diffraction ring around the Airy disk. Good seeing is required to get this far, but when the opportunity presents examine the star diffraction artifact to ensure the diffraction ring is equally bright on all sides. If not, make the adjustment as shown in the diagram.\nIf the seeing is less than ideal, examine the focused image of a first magnitude star. Tiny threadlike granules will be visible in the flare or glare around the star image. These prismatic granules should appear to radiate away from the star image equally on all sides. Note that they will be quite sensitive to the location of your eye pupil, which must be exactly centered on the exit pupil. (This is easiest to judge when the eyepiece field edge is clearly visible on all sides, so again an eyepiece with a ~50° AFOV is helpful.) If the eye pupil is centered, then the shimmering filaments can be used to judge the last refinements in the collimation.\nMost primary mirror cells are equipped with lock screws, which should be gently and gradually tightened in a repeated circular sequence until all lock screws are firmly seated (only firm pressure between lock screw and mirror cell is necessary to hold the collimation). Tightening one screw all the way before moving to the next, or tightening all the screws too far can disrupt the collimation.\nIn SCTs, there is usually a \"mirror lock\" knob that will fix the mirror in place. If you have an external focuser, it is best to perform collimation with an eyepiece that is in the middle of the focusing range required by all the eyepieces you routinely use, with your external focuser in the middle of its total travel span in and out of focus. Collimate with this eyepiece, focus the star, lock your mirror, then use the external focuser for routine focusing.\nEye Collimation. Correct positioning of the eye pupil around the exit pupil is a third source of collimation error. The variations in this error are shown in the diagram (below) as a side view of the relative position of the eyepiece (lens schematic), the eye, and the emerging pencils of light passing through the exit pupil (orange bar). Also shown is a schematic of the visual appearance of each aberration, with the always in focus edge of the eyepiece field stop indicated by dark gray, and the always defocused edge of the exit pupil by a lighter gray.\nIn the correct alignment of the eye (diagram, top left) two conditions apply: (1) the observer's iris is placed so that it is approximately in the same plane as the exit pupil and the eye point or center of the exit pupil is at the principal point of the observer's cornea and lens; and (2) the optical axis of the system passes through the fovea of the retina. In this position the focused edge of the field stop in a standard eyepiece is visible around the entire circumference of the image area, and any optical aberrations (astigmatism and apparent field curvature in particular) are radially balanced of equal size and appearance around the edges of the field.\nEven in this position, it is possible for the observer by very small movements of the head to create skew in the spicules of scatter around bright stars or (in short focal ratio telescopes) comatic aberrations in stars at the center of the image area. These subtle cues can aid the observer to judge the eye collimation.\nIn longitudinal misalignment of the eye (diagram, bottom left), the observer's pupil and fovea are centered on the eyepiece optical axis but the eye pupil point is located in front of or (more often) behind the exit pupil. In either position, the exit pupil vignettes the image area and creates a \"keyhole\" narrowing of the field. If the target is a bright object such as the moon, a sufficient distance clearly shows the outline of the exit pupil in the center of the eyepiece eye lens; it will appear out of focus if it is closer than about 25 cm to the eye. This misalignment is usually remedied with a flexible eye cup or an eyepiece with an adjustable eye rest.\nIn lateral misalignment (diagram, bottom right), the optical axis of the eyepiece and the eye are approximately parallel and the eye pupil or eye principal point are in the same plane as the exit pupil, but both the eye pupil and the fovea are displaced to one side of the optical axis; this causes a curved shadow or \"shutter\" (the edge of the exit pupil) to intrude into the field on the side of the eye's displacement. This can be distinguished from the edge of the eyepiece field stop because it is out of focus.\nFinally, in axial misalignment (diagram, top right) the eye's optical axis is at an angle to the eyepiece optical axis and the fovea is far to one side of the of a wide apparent field, which usually requires the observer to shift the eye laterally (to one side) and longitudinally (slightly forward or backward) from the eye point. This does not produce a noticeable effect in traditional (≤55° apparent field of view) or well corrected wide field eyepieces, since the necessary angular misalignment and displacement of the eye is relatively small, although if the eye is displaced far enough the field stop edge will be eclipsed behind the edge of the exit pupil. However, in some wide field or superwide field eyepieces with spherical aberration of the exit pupil, a floating lenticular or \"kidney bean\" shadow appears in the field on that side, which is often outlined by the smeared out light of stars. This effect is quite annoying for some observers.\nWhile it is a matter of physical control to find and hold the correct eye position while observing, various supports can make this task enormously easier. In particular, an adjustable observing chair is very convenient for observing with most refractors and Cassegrain format reflectors; Dobsonian and Newtonian reflectors should be used with sturdy, stable ladders or stepladders, preferably with a raised front rail that allows the observer to steady their upright posture at the eyepiece. No matter what kind of telescope is used, positions that require bending or leaning, or strain in the neck, back or legs should always be avoided as much as possible.\nFocus is the second of two critical adjustments necessary to obtain the peak optical performance from a telescope. By design both the objective and eyepiece have a specific focal surface; focus is the distance adjustment along the optical axis that brings the two into coincident position.\nThe objective focal surface is the point of reference:\nThe area on the objective side of the objective focal point is called intrafocal or \"inside the focus\". Moving the eyepiece out of focus in this direction causes the output rays to converge, corresponding to an increasing positive diopter setting that is appropriate for eyes that undercorrect (are farsighted).\nThe area on the eyepiece side of the objective focal point is called extrafocal or \"outside the focus\". Moving the eyepiece out of focus in this direction causes the output rays to diverge, corresponding to an increasing negative diopter setting that is appropriate for eyes that overcorrect (are nearsighted).\nFocusing Mechanisms. In a typical rack and pinion (gear and linear toothed track) focuser or Crayford (roller and cylinder) focuser, the eyepiece is adjusted by a pair of knobs on a transverse shaft below the optical axis. The rotation of the knobs necessary to move the eyepiece in or out is immediately obvious from the visible movement of the eyepiece. Rotating the right hand knob clockwise moves the eyepiece toward the objective on the optical axis, in the intrafocal direction; counterclockwise rotation moves the eyepiece away from the objective.\nIn a commercial Schmidt Cassegrain system, in which the focus is adjusted by moving the hidden primary mirror using a mirror cell focusing knob protruding from the back of the telescope, the necessary adjustment is less obvious (diagram, right):\nTurning the mirror cell focusing knob clockwise moves the primary mirror away from the secondary mirror, decreasing the focal length and moving the focal surface away from the observer. An eyepiece in focus is moved out of focus in the extrafocal direction, and an eyepiece out of focus on the intrafocal side is brought into focus. This is the focusing procedure that brings closer objects into focus.\nTurning the mirror cell focusing knob counterclockwise moves the primary mirror toward the secondary mirror, increasing the focal length and moving the focal surface toward the observer. An eyepiece in focus is moved out of focus in the intrafocal direction, and an eyepiece out of focus on the extrafocal side is brought into focus. This is the focusing procedure that brings more distant objects into focus, including objects at infinity (stars).\nFocusing Procedure. The optimal focusing procedure is always to start focus from an extrafocal position the eyepiece front focal surface must be in front of the objective focal point (diagram right, bottom). The reason has to do with how the eye focuses the diverging light rays from nearby objects. In the relaxed state used to view distant objects the eye lens is actually stretched into a flattened figure by zonule fibers or ligaments attached to the circumference of the lens. To focus on nearby objects, the iris muscle contracts in a way that relaxes the tension on these ligaments and allows the eye lens to bulge into a shorter focal ratio. Age hardens the lens, reducing and (around age 60) eliminating the elastic ability of the lens to respond to these changes in tension.\nWhen an image is brought into focus from an intrafocal position, it approaches focus with a \"nearsighted\" convergence of rays. The eye handles these as it would an object near the eyes, and tightens the ocular muscles in an attempt to focus; some of this tension remains even after the image is brought into focus. In contrast, an image brought into focus from the extrafocal direction approaches focus with a \"farsighted\" divergence of rays. The eye cannot accommodate toward the image any farther than a completely relaxed state, and this remains once the image is brought into focus. If you overshoot the correct focus and err onto the intrafocal side, return to the extrafocal position and start again.\nIn commercial Schmidt Cassegrain telescopes, changes in the primary mirror alignment (\"mirror shift\" or \"mirror flop\") occur when focusing with the mirror adjustment knob. The recommended focusing procedure is first to turn the focusing knob clockwise to bring the eyepiece into an extrafocal defocus, then to bring the eyepiece back into focus by a counterclockwise adjustment in the intrafocal direction. This should be the same focusing procedure used during collimation (except that the star is left somewhat out of focus on the extrafocal side), so that the mirror tilt during collimation and in routine observation is the same.\nThe ability to produce a sharp focus is partly dependent on the optical quality and collimation of the instrument and partly dependent on the amount of atmospheric turbulence. Nevertheless, the \"best\" focus will always produce the visually smallest or most compact image of a star, and the sharpest edge in a planetary disk or lunar terminator, when the target is placed at the center of the eyepiece field of view, and will make visible the greatest number of faint stars in the field. Under optimal adjustment and viewing conditions the image will appear to \"snap\" unambiguously into the best focus although the \"snap\" is most vivid in small focal ratio telescopes, and atmospheric turbulence can make this test unreliable.\nWhen poor seeing makes focusing difficult, best focus is found by bracketing the focus. First bring the star into intrafocal defocus to a recognizable disk visual diameter, then take the star in the opposite direction, through the focal position into extrafocal defocus, until the disk reaches the same visual diameter. To finish, rotate the focusing knob back by half the travel between the two defocus positions.\nPoor seeing can cause large variations in focus. Resist the temptation to continually adjust focus in order to \"chase the seeing\". The best procedure is not to make continual adjustments, but to find the focus that produces the most frequent intervals of focus. Patience, rather than manipulation, is the bast focusing procedure: focus should be changed by very small increments so that the quality of the new focus can be observed for several seconds.\nDepth of focus. This is the distance in front of and behind the optimal focal point within which image quality is still acceptably sharp. If the standard of image quality is that it is not degraded by more than 1/4 wavelength of light (the Rayleigh criterion), then:\nDF = ±2λNo2\nDepth of focus is proportional to the square of the relative aperture. Thus an /20 Cassegrain telescope has a depth of focus of ±0.44 mm at λ = 550 nm, but an /4 Newtonian has only ±0.02 mm. These tolerances are especially critical for astrophotographers, who typically use automated (software driven) focusers to find the optimal focal point at the camera image plane.\n(1) Magnitude vs. Brightness. The magnitude system was proposed in 1856 by Norman Pogson, who noticed that a five magnitude difference in the ancient system of naked eye magnitude ranks (attributed to Hipparchus and adopted by Ptolemy) corresponded very nearly to a 100 times difference in brightness. Therefore, the base value of the magnitude system was chosen as 1001/5 = 2.51189, so that 2.5125 = 100.023\nOriginally, Vega anchored the measurement of illuminance ratios as a 0.0 magnitude star and the numerator of the brightness ratio, making all magnitudes a log reciprocal illuminance (because 2.5120 = 1). A star at the naked eye limit magnitude of 6.5 then emits into the eye or a telescopic aperture only 1/2.5126.5 = 1/398 or 0.25% the light of Vega. The magnitude system can be extended to objects brighter than 0.0 by using negative magnitude values. The Sun, with an apparent magnitude of 26.74, is 1/2.51226.74 or 4.97·1010 (almost 50 billion) times brighter than Vega.\nThe flux of Vega in the visual is 3.46 x 10-11 watts/m2 at the peak visual wavelength of 555 nm (Mégessier, 1995), and 2.46 x 10-6 lux on the Earth's surface the naked eye brightness of a single candle at 640 meters distance. The chart (left) shows the visual brightness of illustrative planets and stars viewed with telescopes of aperture from 100 mm to 400 mm (white lines) at a unit exit pupil, and for the exit pupil of peak stellar brightness (de =3.5) in the 400 mm aperture (dotted white line). As reference the range of the naked eye (orange line) is also shown. The dashed blue line represents the point at which foveal resolution and color perception begins to degrade, and is consistent with the observation that naked eye star color becomes imperceptible below v.mag. ~2.0. Note that telescopic star images can be detected at much lower illuminances than star images observed with the naked eye; this is due to the decreased sky brightness and increased star diffraction area in the telescopic view at high magnification (de = 1.0; see below).\nMagnitude is a exponential metric in which the magnitude units are actually the exponents applied to a constant base value that represents a fundamental proportion or ratio. Similar exponential metrics for the energy of a stimulus include the Richter Scale (earthquakes) and the decibel scale (sound).\nThe base value 2.51189 is the unit illuminance ratio (the \"Pogson ratio\"). If two stars differ in brightness by 1 magnitude, then one star emits roughly 2.5 times more light than the other. The numerical magnitude is the exponent of this unit, and by using fractional exponents (continuous magnitude values), the base value can be multiplied to express any brightness ratio. (The bolometric magnitude is the same ratio in the flux of a celestial source across the entire electromagnetic spectrum.)\nSome references point out that the human visual response to luminance is actually a power function (the \"Stevens power law\"), not an exponent function. Perceptual or visual brightness J scales as:\n J = k·(II0)α\nwhere I is the the stimulus intensity or radiant flux, I0 is the radiant flux of the visual threshold or limit magnitude, k is a scaling constant, and the exponent is usually the cube root α = 0.333 for point light sources viewed with a dark adapted eye. But that has a limited significance, because the log and power functions are fundamentally related, as:\n log(J) = α·log(II0)+log(k)\nand the two functions coincide when plotted on log radiant flux across the visual range (magnitudes 1.5 to 7; diagram, right) with an exponent α = 2.5 (cf. formula , below). It's the difference between the visual and magnitude exponents, and the combination of two separate power functions for foveal and peripheral (20° off fovea) light sensitivity, that creates the discrepancy. As a result, a star midway in visual brightness between a magnitude of 0.0 and 1.0 is actually magnitude 0.46, not 0.50; a star midway between magnitudes 0.0 and 2.0 is magnitude 0.85, not 1.0; a star midway in brightness between magnitudes 0.0 and 5.0 is magnitude 1.65 (!), not 2.50. In addition (assuming a naked eye limit magnitude of 7), a strong threshold effect appears at around magnitude 5 where the magnitude and brightness curves diverge. Near the visual threshold, small changes in magnitude correspond to increasingly larger changes in visual brightness.\nThe key points for the visual interpretation of the magnitude scale are that (1) \"brightness\" in the magnitude scale is strictly a metric of log illuminance or log radiant flux (I), not of perceived brightness (J); (2) the numerical midpoint between two values of the magnitude scale identifies a star that is fainter than the perceptual midpoint between the corresponding two visual brightnesses, and this discrepancy increases across larger magnitude differences; and (3) magnitude differences indicate much larger brightness differences in parafoveal or averted vision about 2 magnitudes above the visual or aperture limit magnitude.\nSince magnitude is a measure of radiant flux, not perceived brightness, the magnitude system can be applied to flux across any part of the electromagnetic spectrum, including bandwidths that cannot be perceived by the eye. Most astronomical spectral radiances are measured within defined sections of the spectrum. The historically most important for visual astronomy were visual magnitude, measured primarily on the flux between 504 to 592 nm (\"green\" to \"yellow orange\" wavelengths of light), and photographic magnitude, centered at around 425 nm (\"blue violet\") and originally measured as the diameter of the star image in UV sensitive photographic emulsions. Color indices such as the BV color index are simply the flux of an object measured with a V (visual) filter subtracted from the flux measured through a B (blue) filter. In the Johnson-Morgan system of filters, the benchmark illuminance was defined so that a \"white\" type A0 star had 0.0 magnitude in all filters: again, the historical standard was Vega.\n(2) Geometry of Magnitude. The logarithmic basis of the magnitude scale means that any equal magnitude difference defines the same flux ratio. Thus, a 5th magnitude star produces only 1/100 of the illuminance of a 0 magnitude star such as Vega, and the same illuminance ratio applies between stars of magnitudes 5 and 0 or 5 and 10.\nThe fundamental relationships among magnitude intervals, relative flux ratios, the aperture diameter required to grasp equal illuminance from fainter magnitudes, and the parsec distance of a star of 5.0 absolute magnitude (close to the Sun's 4.83 absolute magnitude) are listed in the table below down across the stellar magnitude range of a 150 mm telescope.\nThe values for brightness ratio and proportion define the magnitude system. However, several physical insights can be derived from comparisons made with the aperture diameters and physical distances.\nThe aperture diameters represent multiples of aperture in any measurement unit (e.g., centimeters or inches) that produce the tabulated differences in magnitude; these can be used to equate magnitudes across aperture:\n(1) The dark adapted eye pupil has an aperture diameter of approximately 0.6 cm, and the nominal naked eye limit magnitude is 6.5. A 60 cm telescope is 100 times larger, and this aperture ratio (100:1) is equated in the table with a difference of 10 magnitudes. So the limit magnitude of a 60 cm telescope will be 10+6.5, or 16.5.\n(2) A 12th magnitude star is observed through a 10 inch telescope, which is is roughly 40 times the 0.25\" diameter of dark adapted eye. In the table an aperture ratio of 40 is associated with a magnitude difference of 8. This implies the 12th magnitude star will appear about as bright as a 4th magnitude star observed with the naked eye. (Light absorption and scattering in the telescope, and the power function response of the eye, make this only an approximate calculation.)\n(3) If we equate the dark adapted pupil aperture of 0.6 cm with 0 magnitude, then we find it collects as much light from Vega as does a 100 cm aperture from a 11th magnitude star.\n(4) The owner of a 4 inch telescope wants to know the gain in the limit magnitude obtained by switching to a 16 inch telescope, an aperture four times as large. In the table, an aperture ratio of 4.0 yields an increase of 3 magnitudes. The owner of a 6\" telescope would like to increase his limit magnitude by 2 magnitudes. The aperture ratio for two magnitudes in the table is 2.5. Therefore he would need a 6\"·2.5 = 15\" aperture. (See also the limit magnitude graph, below.)\nThe distance metrics are governed by the inverse square law, which states that moving a light source N times farther away will reduce its brightness by 1/N2.\n(1) If a star is at a 1 parsec distance, then moving it to 10 parsecs will reduce its flux by 1/102 = 1/100th; consulting the column of flux ratios indicates that this will increase its magnitude by 5.\n(2) Given two stars of equal absolute magnitude, one 7 times farther than the other, the farther star will be 1/72 = ~1/50 as bright. In the table the flux ratio 1/50 falls between magnitudes 4 and 5 but is much closer to 4, so we can estimate that the farther star will appear to be about 4.2 magnitudes fainter. (Exact calculation with formula  below yields a magnitude difference of 4.27.)\n(3) The Sun has an absolute magnitude of ~4.8 (at 10 parsecs), and a 14 cm refractor has a limit magnitude of 13.3, a difference 8.5 magnitudes. This corresponds to a distance ratio of about 50, which means stars as bright as the Sun cannot be detected in the 14 cm refractor if they are more than 50·10 = 500 parsecs away. The absolute magnitude of the Sun is 6.5-4.8 = 1.7 magnitudes higher the naked eye limit, which is between the distance ratios 1.58 and 2.51; assuming that the corresponding distance ratio is about 2.2, the Sun would not be visible to the naked eye if it were 10·2.2 or more than 22 parsecs distant. (Exact calculation with the distance modulus yields 501 and 21.9 parsecs, respectively.)\n(4) If Vega (7.7 parsecs distant) were 25 times farther away (at 192 parsecs) then it would appear to be a 7th magnitude star.\nThese examples illustrate the many different ways that the relationships between magnitude, flux, aperture and distance can be exploited to find one value from the others, and how the brightness ratios can be used directly with a minimum of calculation.\n(3) Magnitude and Illuminance. There are several equivalent standard formulas to calculate the magnitude difference between two stars from the ratio of their radiant fluxes. Given a magnitude difference m'm (where m is the magnitude of the brighter star, m' > m), to find the illuminance ratio b/b' (where b is the illuminance of the brighter star, b > b'):\n[3a] b/b' = 2.512(m' m), or\n[3b] b/b' = 100.4(m' m), or\n[3c] log(b/b') = 0.4(m' m)\nGiven an illuminance ratio, to find the equivalent magnitude difference:\n m' m = 2.5·log(b/b')\nNote that 0.4 is the inverse of 2.5. Note also that illuminances are defined a ratio and magnitudes are defined as a difference because division is done in an exponential scale (the magnitude scale) by subtraction of exponents (the magnitudes).\nThe illuminance ratio across all naked eye stars (from Sirius at 1.46 to the 6.5 magnitude limit) is then:\nb/b' = 2.5126.51.46 = 2.5127.96 = 1528\nHowever averted vision is required to achieve the low end of this dynamic range. If we put the foveal threshold (stars visible with direct fixation) at around magnitude 4.5 under conditions of typical sky brightness, then the dynamic range of dark adapted foveal vision is at minimum 2.512(4.51.46) = 2.5125.96 = 242 (see the table, above). This two magnitude difference suggests that averted vision is about 6.3 times more sensitive to light than foveal vision.\nIn double stars imaged as a single light source, the magnitude of the combined source is not the sum of the separate magnitudes. Instead, the incremental brightness (x) is calculated from m'm, and this is subtracted from the magnitude of the brighter star (m):\n x = log(1+(1/2.512m'm))/0.4, then M = m x\nPlugging in some basic values, we find that the combined magnitude of two stars of nearly equal magnitude (m'm = ~0) increases by log(1+1/1)/0.4 = 0.75 magnitudes, and this is subtracted from the magnitude of the brighter star. The magnitude increase is x = log(1+(1/2.512))/0.4 = 0.36 magnitudes when the magnitude difference is 1.0, x = 0.16 when the magnitude difference is 2.0, and x = 0.07 when the difference is 3.0. (The human eye is usually insensitive to magnitude changes less than ~0.2.)\nTo anchor these relationships as measures of illuminance or brightness, the light gathering power of the telescope can be expressed in three ways: (1) as the increase in light gathered over the light that enters an unaided, dark adapted eye; (2) as the limit magnitude of stars visible with averted vision, both visual parameters; and (3) as the illuminance of the telescopic image on a film or CCD sensor, a photographic parameter.\n(4) Aperture & Light Grasp. The light gathering power of the telescope is a function of its aperture area (Ao): as the aperture increases, more light enters the system and is concentrated into the usable image. For a refracting telescope this area is usually calculated as:\nAo = Do2\nBecause the secondary mirror in a reflecting telescope blocks a certain amount of light from reaching the primary mirror, its area (Ds2) must be subtracted from the area of the objective in order to get the effective aperture (Deff):\n Deff = sqrt(Do2 Ds2)\nThus, a 250 mm (10\") telescope with a 50 mm (2\") diagonal diameter has an effective aperture of 9.6\" or 245 mm.\nThe relative light grasp of any two apertures is proportional to the square of their areas, and the increase in light grasp with aperture scales as the square of the aperture ratio:\n ΔAo = (D1/D2)2\n(5) Telescopic Gain Over Naked Eye Brightness. The first criterion requires an estimate of the dark adapted pupil aperture. To measure: obtain a complete Allen wrench set. At night, once your eyes are fully dark adapted (roughly 1/2 hour after the last bright light exposure), close one eye and pass an allen wrench back and forth in front of the other eye. Hold the long shaft of the wrench vertically with the short end pointed in the direction you are looking. If the wrench fully occludes a bright star, causing it to \"blink\", then the wrench is larger than your pupil opening. Try different wrenches until you discover the largest wrench that dims but does not completely block the star image. Then the width of that wrench is the diameter of your dark adapted pupil (δ).\nThen the measure of a telescope's light grasp in comparison to your naked eye is the ratio of the two areas:\n Lo = (Deff/δ)2t\nwhere t is an estimate of the system's light transmission, which is 0.98 for each surface of aluminum high transmission catoptrics, 0.90 for aluminum standard catoptrics, and approximately 2% per centimeter of fully multicoated refractor or eyepiece glass. My dark adapted pupil is about 6 mm wide, so a 10\" reflecting telescope with a 2\" diagonal will gather at most (245/6)2 x 0.98 x 0.98 = ~1600 times more light than my dark adapted eye, not accounting for light absorption by the eyepiece.\nMagnification is a critical qualification in estimates of the visual brightness of a telescopic image: the objective gathers light, but image magnification spreads a fixed density of light over a square visual area. Thus the ratio of telescopic to visual brightness becomes:\n(6) Telescope Limit Magnitude. Because visual magnitude differences are a direct measure of luminance ratios (expressed in logarithms), the telescope/eye ratio implies a 10\" telescope limit magnitude that is 1656 times fainter than the visual limit magnitude.\nUsing (as a first approximation) the standard brightness ratio formula [3c] (where b' and m' refer to the fainter brightness and magnitude, respectively), assuming a visual limit magnitude of 6.5, and rearranging to solve for m' yields:\nm'250 = log(2452/62)/0.4 + 6.5 = 14.56\nfor a Deff = 245 mm (10\") telescope limit magnitude and a dark adapted pupil aperture of 6 mm. This standard formula is more often cited in the following equivalent form:\n m'o = mne 5log(δ) + 5log(Deff)\nThis form shows that the three critical variables are effective aperture (Deff) and pupil aperture (δ), both in millimeters, and naked eye magnitude limit mne (a function of zenith angle, atmospheric seeing, transparency, diffusion and light pollution, which are not measured directly). Assuming a pupil aperture δ = 6 mm and a \"dark sky\" naked eye limit magnitude mne = 6.5, the formula simplifies to:\n m'o = 2.61 + 5log(Deff)\nand for a Deff = 245 mm (10\") telescope this yields a value m'o = 14.56 identical to the value calculated using formula [3c]. (To calculate using different values for pupil aperture or naked eye limit magnitude, use formula  to derive the constant to replace 2.61.)\nAttempts have been made to refine this straightforward calculation by including more variables magnification, zenith angle, observer experience, optical quirks of the eye under the statistically dubious assumption that a greater number of inputs will increase accuracy.\nThe graph (right) shows estimated limit magnitude, as calculated by Bradley Schaefer (1990), across 6\" to 16\" apertures and 5 levels of magnification, under the condition that the faintest stars are viewed with averted vision. The predictions assume δ = 6.7 mm, a naked eye limit magnitude mne = 6.0, a telescope transmission of 80% and atmospheric transmission of 70%. The predicted values correspond reasonably well to the actual limit magnitudes in 314 observing reports from over four dozen observers. The main effects shown in the graph are that limit magnitude increases with aperture and with increasing magnification (from 30x to 400x), but that the incremental increases decline significantly as aperture or magnification increases.\nSchaefer claims to include the effects of human dark adapted visual sensitivity, atmospheric absorption, observer age corrected pupil size, telescope transmission, magnification, scotopic eye transmission, star and sky color temperatures and observer experience. But the largest additional impact is from the sky brightness (naked eye limit magnitude, NELM). The blue curves assume a visual limit magnitude of 6.0; the single green curve shows the effect of reducing the visual limit to 4.0 at a magnification of 100x. Note that this increase in the limit magnitude of a 10\" objective between a suburban and dark sky site (a, Δm = 1.25) is roughly twice as large as the increase between a 10\" and 16\" objective (b, Δm = 0.66)! This illustrates the significant benefit of a medium aperture but compact and portable field telescope for observers with access to dark sky sites. Note too that increasing magnification from 100x to 400x increases the limit magnitude of a 250 mm aperture to slightly more than the limit magnitude of a 400 mm aperture at 100x (b). This illustrates the large impact of magnification on limit magnitude.\nSchaefer's complex model predicts m'o = 14.15 for a 10\" aperture at 60x magnification. One can ask whether the difference of 0.09 magnitude between this model and the estimate of 14.06 given by the simple formula  (using the same values for δ, mne and Do) is worth the added complexity. Subsequent and more intricate proposals by Nils Olof Carlin and Chris Lord do not improve the validity of the methods by using different variables or assumptions, because the error in the actual observed magnitude across observers, due to factors omitted or impractical to measure, remains on the order of ±0.5 magnitude the difference between a 6\" and 8\" telescope.\nSchaefer's model underestimates limit magnitudes with a ±0.75 average magnitude error, and he comments that \"the limit of accuracy for my model is much larger than I would have hoped or expected.\" That is because his expectations were unrealistic. Limit magnitude is difficult to predict because many stellar, atmospheric, instrumental and observer variables can affect it, most of them inconvenient to measure with the accuracy necessary for reliable prediction. Worse, estimates of visual acuity are an exercise in predictive psychophysics, which has always proven difficult, even with carefully controlled stimuli in vision laboratory experiments, due to the very large differences in visual capabilities across individual observers.\nMy suggestion is to use formula  to obtain a baseline estimate, then revise this value with the judgment of experience to correspond to changes in magnification or observing conditions. Schaefer actually demonstrates this approach at the end of his research paper, where he makes several ad hoc adjustments to his model in order to \"predict\" Steven O'Meara's remarkable visual acuity.\n(6) Photographic illuminance. The photographic illuminance of the telescopic image increases with aperture and decreases with relative aperture, making it proportional to:\n Io = (Do/No)2\nRelative & Numerical Aperture\nThe relative aperture (No) of a telescope is the focal length of the objective (o) divided by the diameter of its entrance pupil or clear aperture (Do):\n No = o/Do .\nThis ratio of projection distance to aperture is frequently termed the f-number, what photographers refer to as the focal ratio. A larger relative aperture is photographically slower, either because the focal length is longer or the aperture has been made smaller.\nThis is distinct from the numerical aperture (NA), which is measured as the field angle of the field stop (θ) at the system focal point:\n NA = no sin(θ) .\nNumerical aperture is simply Snell's law applied to the last refracting surface of the optical system. Relative and numerical aperture coincide when viewing objects at optical infinity in optics surrounded by air: then N = 1/(2no sin(θ)).\nRelative aperture is a scale free dimension, meaning the numerical aperture of a telescope does not tell us how large it is. In contrast, numerical aperture is related to the maximum field radius (ρ) produced by a telescope objective:\n ρ = 2arctan(1/2No) radians\nwhich is equivalent to the angle subtended by the aperture as viewed from the focal point.\nRelative aperture is sometimes referenced in the context of optical aberrations. Thus, coma is considered to be a significant aberration in Newtonian reflectors shorter than /5, and the spherical aberration in a spherical mirror or lens becomes negligible (by the Rayleigh criterion) when\n N ≥ 3.4(Dcm)1/3 or ≥ 4.6(Din)1/3\nBoth depth of focus (defocus tolerance) and depth of field increase with relative aperture.\nIn photometric contexts, relative aperture expresses the proportion of unit illumination (aperture area) per unit magnification (focal length) produced by the telescope objective. However, these units are dimensionless, and comparatively useful only by holding one element constant. For example, as the relative aperture gets larger for a constant aperture, the quantity of light projected onto a unit area of the image plane decreases because the image is magnified. Equivalently, as the relative aperture gets larger for a constant focal length, the quantity of light projected into the unit image area decreases because a smaller aperture admits less light.\nRelative aperture determines the ratio between eyepiece focal length and exit pupil diameter, independent of aperture or focal length. Thus, an /10 telescope will produce an exit pupil that is 1/10th the focal length of the eyepiece, regardless of the dimensions of the objective or the image magnification.\nBecause magnification is proportional to focal length, but light grasp is proportional to the square of aperture, the relative image illuminance produced by different relative apertures (different focal lengths for the same aperture, or different apertures for the same focal length) scales as the ratio of the relative apertures squared (chart, above).\nThe geometry of relative aperture is luminance (Lo), calculated as the product of image area and aperture solid angle, or as aperture solid angle when image area and luminous flux are held constant. Then the formula for image luminance reduces to:\n Lo = E/N2\nwhere E is the illuminance at the aperture in lux. This is just the inverse squared distance effect of decreasing illuminance but measuring distance in aperture units. The table below shows the aperture angular diameter for each relative aperture, with its area in steradians and illuminance in proportion to the luminance at /2. The diagram (right) illustrates relative aperture as distance from a small circular aperture in a dark room: as the image surface is placed farther from the aperture, the light falling on its surface decreases. Note that /2 is near the lowest feasible aperture, /4 is useful for richest field telescopes, and /8 is the lower value for traditional Newtonian reflectors, achromat refractors, and Schmidt Cassegrains. (The case /250 is relevant to the discussion of exit pupil.)\nThus an /2 system has roughly six times the image illuminance of an /5 system ((5/2)2 = 2.52 = 6.25), an /7 system has half the illuminance, an /10 system one fourth, and so on.\nThe standard system of photographic stops doubles the area of the diaphragm stop (effective aperture) at each step, which means the stops increase the image illuminance by powers of the square root of 2 (1.414): 1, 1.414, 2, 2.83, 4, 5.65, 8, 11.3 and 16.\nThe resolution of an optical system is measured as the smallest linear width that the system can image at the focal surface, which is equivalent to the smallest angular width that can be observed in the image space. In astronomical systems this limit is determined by three things: the quality of the optics of the system, the turbulence or distortion introduced by the atmosphere, and the quantum wave properties of light. Only the last property can be calculated directly as the reciprocal of aperture, 1/Do.\nThe Diffraction Artifact. Calculation of the aperture resolution limit depends on a quantum (physical) rather than geometrical analysis of light.\nIf the light wavefronts from a distant star are traveling in direction x parallel to the optical axis of a telescope, then the width of each wavefront is measured along a dimension y perpendicular to the direction of light. Because the star is so far away, the scale of the y dimension is effectively too large to measure.\nThe quantum indeterminacy of the location and momentum of any photon in the wavefront is distributed across the entire dimension y, and both the energy and location of the photon can have a precise value, which means it can carry information about the emitting source of the photons.\nIn a telescope, the wavefront location for each photon is fixed at the focal surface of the objective. But because the wavefront has passed through the aperture stop, the indeterminacy distributed across the entire y dimension is reduced to the aperture width D. This introduces a quantum uncertainty or \"error\" in the specific location of each photon in the image, which must be no smaller than:\nU = hν\nwhere h is Planck's constant, 6.626 x 10-34, and ν is the frequency (energy) of the light, and where the speed of light c is their product, c = νλ. Casting these quantum relationships in a form that defines the indeterminacy of a circular aperture of diameter D yields:\n UD = hc / hνD = hνλ / hνD = λ / D\nIf we specify the energy of light by wavelength rather than frequency, for example as the commonly used λ = 550 nm (approximately the eye's peak photopic sensitivity), then the angular width of the indeterminacy in a 10\" (254 mm) telescope becomes:\nUD = 0.00055 / 254 = 2.165 x 10-6 radians\nIn the light from a far distant star, the result of the cumulative uncertainty from all photons focused to a single image point does not have a simple \"fuzzy\" image structure around the point, due to the destruction or reinforcement of light waves as different parts of the wavefront are superimposed at the same location on the image plane. Instead it appears as a central concentration of light surrounded by one or more rings, the center and rings separated by concentric dark intervals.\nThe central concentration of this diffraction artifact is called the Airy disk (after the Cambridge professor George Biddell Airy who first described it mathematically in 1834), surrounded by concentric diffraction rings. The angular dimension of these features, in relative units of λ/D, the relative luminance (as a proportion of the peak Airy disk luminance) and the percentage of total light energy enclosed by each dark ring are given in the table (below).\nAngular Resolution Criteria. This diffraction artifact the Airy disk and encircling rings is the smallest possible physical image of a \"point\" light source. As a result, the diffraction artifacts created by two \"incoherent\" or physically unrelated light sources (such as two stars) will appear to merge on the image plane when the angular separation between them is smaller than the angular diameter of the artifacts.\nWhat is the minimum angular separation between two point sources necessary to resolve their overlapping diffraction artifacts? This is the angular resolution limit (Ro) for a given aperture. It is determined by the wavelength of light taken as the reference, the unit of the diffraction artifact used as the minimum resolvable detail of the image, and the aperture diameter:\n Ro = k·λ/Do·206265 arcseconds\nwhere λ and Do are measured in millimeters, and the constant 206265 converts the tangent (radians) into arcseconds of angular width.\nThe factor k is used to define a perceptual (visual or sensor relevant) resolution criterion in units of the fundamental λ/Do resolution metric. When k = 1.0 we have the λ/D resolution limit or Abbe resolution limit, first applied to microscope optics by the German physicist and optical designer Ernst Abbe in 1873. If k is greater or less than 1.0 we have one of the many perceptual standards that have been proposed as resolution criteria. The three most often encountered in astronomy are:\nNote the equivalence of the λ/D limit and Dawes criterion: for example, the minimum interval resolved in a 12 inch (305 mm) aperture at the λ/Do limit is Ro = 113.4\"/305 = 0.372\"; with the Dawes criterion, it is 0.379\". The diagram (below) illustrates the visual implication of various resolution intervals with FWHM Airy disks.\nAngular Telescope Magnification. Once the angular size of the smallest resolvable interval is calculated for a specific aperture, the practical question is: how much magnification is necessary for the observer to resolve it visually?\nAssuming that both the eye and telescope are diffraction limited, a common rule of thumb is that the required magnification will equal the aperture diameter in millimeters: a 305 mm aperture will require about 305x magnification.\nA more accurate answer requires a measure or estimate the observer's angular visual resolution limit (Rv). For normal vision this is usually given as 120 arcseconds. Then the necessary magnification is:\n[5a] Mt = Rv/Ro\n[5b] e = o / (Rv/Ro)\nGiven the standard angular visual resolution limit Rv = 120\", the required magnification in a 305 mm aperture for the λ/D limit would be Mt = 120\"/0.372\" = 323x. My visual limit is about Rv = 100\", which requires only about 270x. This large range in the estimated necessary magnification is typical of the differences in visual acuity across \"normal\" individual observers.\nLinear Resolution Criteria. Resolution can also be expressed as a physical interval (in millimeters) on the image plane, where the image is much too small to be utilized by naked eye. The function of the eyepiece is to provide the dioptric magnification necessary to make these tiny image details visible. This requires comparison with the observer's linear visual resolution limit (Rv) or, without the eyepiece in astrophotography, the width of individual pixels in a CCD receptor.\nUnlike the angular resolution in image space, which scales only with aperture Do, the linear or physical width of the diffraction artifact on the image plane (So) scales only with relative aperture No, independent of aperture and focal length:\n So = k·λ·No millimeters\nwhere k is the scaling factor of a resolution limit based on a diffraction feature (see formulas 3a-3d, above). Given an /8 telescope and λ = 0.00055 mm, the linear diameter of the FWHM Airy disk is 2.03 x 0.00055 x 8 = 0.009 mm about the size of a single red blood cell. The eyepiece enlarges this small interval so that it is visible to the eye.\nFor reference, the table below shows the linear metric (at No = 1) and the matching naked eye linear criterion (at No = 250) corresponding to the four angular resolution criteria (for λ = 0.00055 mm).\nThe linear metric must be multiplied by No (or the matching naked eye criterion by the quotient of No/250) to obtain the linear resolution of a specific relative aperture. For example, in an /10 telescope with the λ/D limit, the linear resolution limit is either So = (10/250)*0.1375 = 0.04*0.1375 = 0.0055 mm, or So = 0.00055*10 = 0.0055 mm.\nLinear Eyepiece Magnification. How much eyepiece magnification is necessary? As before, that depends on the observer's visual acuity, defined by a linear visual resolution limit (Sv). This is measured as line pairs per millimeter (lp/mm) or as the spacing between parallel white and black lines viewed at the near point (250 mm) with the naked eye. The typical value is 6 to 8 lp/mm or an average line spacing of about 0.1429 mm.\nIn the example of an /8 objective given above, we'd require an eyepiece magnification of 0.1429/0.009 = 15.9x to barely detect the FWHM Airy disc; the formula for dioptric magnification indicates this is roughly a 250/15.9 = 16 mm eyepiece.\nThe formula to calculate directly the eyepiece focal length (e) at which the diffraction limited image details will be just visible is:\n e = 250·(So/Sv) millimeters\nThus the eyepiece focal length that will resolve the smallest image detail at the λ/D limit in an /8 telescope (So = 0.0044 mm), given a visual resolution of Sv = 0.1429 mm, is\ne = 250·0.0044/0.1429 = 7.7 mm\nwhich is an eyepiece magnification Me = 250/7.7 = 32.5x. (See also the comparative table here.)\nLine Resolution Criterion. In an afocal system with circular aperture, the unweighted quantum formula is used to compute the minimum resolvable interval between two lines is:\n νo = λ/Ds·206265 arcseconds\nAs already explained, this is equivalent to the spacing between dark rings of the point diffraction artifact or the dark bands produced by a two slit aperture mask, where Ds is the distance between the centers of the two slits.\nChoice of Resolution Criterion. Because these are practical resolution criteria, and implement different conceptions of what resolution means, none of them should be interpreted as anything more than guidelines to aperture performance. As a general caution, Williams & Coletta (1987) comment:\n\"The concept of an optical resolution limit has proven difficult to formulate; it is not clear that the resolving power of an optical instrument is a particularly meaningful figure of merit. Even the cutoff frequency of a diffraction limited system can be surpassed under some circumstances. The concept of visual resolution suffers from a similar lack of generality, and the theoretical limits of performance are set by the task as much as by the underlying visual architecture. The sampling theorem [that predicts resolution based on Nyquist foveal cone spacing] correctly specifies the highest frequency possible for image reconstruction without aliasing. However, it does not necessarily prevent an observer from extracting enough critical features of a supra-Nyquist grating to be confident that he sees it.\" (\"Cone spacing and the visual resolution limit,\" 1987, p.1521)\nWe might expect, then, that published resolution limits are inconsistent with each other and have limited generality: and this is what we find.\nJohn William Strutt, Lord Rayleigh (pronounced RAY-lee) was originally concerned with the linear diffraction artifacts produced in spectral lines by the rectangular slit of a spectroscope, and he observed in 1879 that \"a double [spectral] line cannot be fairly resolved unless its components subtend an angle exceeding that subtended by the wave-length of light at a distance equal to the horizontal aperture\" (in other words, the factor k must be greater than 1.0). He proposed as a criterion that \"the central line in the image of one [spectral line diffraction artifact] coincides with the first zero of brightness in the image of the other.\" This is given as k = 1.22 or Ro = 1.22·λ/Do radians in the table above. In telescopic images it places the central peak intensity of each Airy disk over the minimum of the first dark ring of the other (diagram, right), where the merged minimum brightness between the two stars is roughly 70% of the peak brightness of each Airy disk. Note that the Rayleigh criterion is commonly used in astronomy despite the fact that Rayleigh later (1880) determined by experimental tests that resolution with circular apertures was practicable at k = 1.09.\nJean-Bernard-Léon Foucault (c.1876), observing a scale of evenly spaced dark lines, found a resolution limit of about 4/3\" with a 100 mm telescope, which is Ro =133\"/Do and k = 1.17 at λ = 0.00055 mm.\nWilliam Dawes established his criterion in around 1832 after he \"examined with a great variety of apertures a vast number of double stars, whose distances seemed to be well-determined,\" then calculated that a one inch (25.4 mm) aperture would just resolve a matched pair of 6th magnitude stars separated by 4.56 arcseconds (k = 1.02). He then extrapolated the ratio 4.56\"/Dinches to apertures as large as 30 inches (762 mm), with the bald assertion that \"the separability of all magnitudes is nearly the same, provided the state of the air is such as to bear well the increase of power.\"\nC.M. Sparrow (1916) proposed that two point images can be resolved when the joint intensity function (the luminance sum of the overlapping diffraction artifacts) falls below a straight line connecting the two intensity peaks (k = 0.95). In two stars of equal magnitude, this means the intensity function between the two peaks of a point source pair is not perfectly flat but very slightly concave, and the visible circumferences of the Airy disks appear to touch (diagram, above). Note that no dark interval is perceived between the two point images, which does not qualify as resolution in some uses of the word. However this is considered a more realistic resolution limit for both photographic optics and human visual acuity.\nOther criteria exist: the Schuster criterion requires the full width Airy disks to be completely separated, which is twice the Rayleigh criterion; the Houston criterion uses the FWHM in the same way. These are rarely used in astronomy.\nBecause these criteria reflect assumptions that are questionable in some circumstances and arbitrary in others, there is clarity in the simple choice of Ro = λ/Do (that is, k = 1.00). This λ/D resolution limit directly implements the 1/D rule first deduced by Fraunhofer (1823) and verified by the quantum theory of light. Empirically, it is equivalent to the average separation between two adjacent dark interference bands in the diffraction artifact of a circular aperture (the smallest diffraction detail, average k = 1.01), and it is the criterion often used for the resolution of line pairs (see formula , above). It is insignificantly different from both the empirical Dawes resolution criterion (k = 1.02) and the FWHM diameter of the Airy disk (k = 1.03) as shown in the diagram (above). Whether this λ/Do interval can be resolved by the observer's eye depends on the image magnification, the seeing, the optical quality of the telescope, and the observer's visual acuity. At an exit pupil of 1.0 (where magnification is equal to the aperture diameter in millimeters) it requires a visual resolution limit of Rv = 113.4 arcseconds, which is within the range of normal vision.\nHowever, magnification and visual acuity are not the only factors that affect a practical resolution criterion:\nSharp eyed and experienced observers are able to detect a \"rodlike\" or \"elliptical\" elongation of the star image when two stars are separated by as little as k = 0.37 to 0.50 (a resolution threshold of Rv = ~0.45), although this detection criterion seems to rapidly deteriorate in apertures greater than about 90 cm because large apertures are limited by the effects of atmospheric turbulence.\nSidgwick (Amateur Astronomer's Handbook, pp.45-7) notes that matched 9th magnitude stars (fainter than the 4th to 6th magnitude range in which resolution is typically evaluated) require a separation of from k = 1.37 to 1.90, which implies a low contrast or low luminance criterion of roughly Rv = 135 to 190 arcseconds.\nAll the resolution criteria place the Airy disk of a binary component within the diffraction rings of the primary; these obscure the fainter star if the primary star is bright (m < 5), produces glare or scatter in the image, or if the companion is faint m > ~7.5 and is more than 2 magnitudes fainter than the primary.\nThe more stringent Dawes resolution criterion applies only to two stars of equal brightness viewed through a circular telescope aperture with no central obstruction. In addition, the Sparrow criterion becomes larger as the magnitude difference between the two stars increases. The Rayleigh criterion is applied without regard to the magnitude or difference in magnitude between two stars, the presence of a central obstruction, or differences in aperture.\nReflectors, because of the central obstruction, push some light into the diffraction rings, slightly reducing the brightness and diameter of the Airy disk. This can provide improved resolution for very close pairs of similar magnitude, but can obscure a faint companion located within the diffraction rings of the brighter star.\nThe reference wavelength of light is usually chosen to match the peak foveal response, which is not well defined. Different measures of the photopic sensitivity function place the average peak response between 545 and 555 nm, and individual differences in color vision enlarge this over a rather broad range between approximately 530 to 580 nm. The choice of 550 nm is purely conventional.\nAppearance of the Diffraction Artifact. Given a fixed aperture and focal ratio, optical theory stipulates that regardless of the magnitude of the \"point source\" the diffraction artifact will always have the same linear and angular diameter and the same proportional illuminances between the Airy disk and any of the rings around it.\nVasco Ronchi (1961) noted the important difference between the ethereal image or unseen physical characteristics of the actual star, the calculated image or theoretical representation of this image in an optical instrument, and the detected image that actually appears to the astronomer's eye. Remarkably, optical theory in the form of the calculated image, a \"mere mathematical construction,\" does not describe the detailed visual appearance of a stellar detected image.\nFirst, as Sidgwick explains (Amateur Astronomer's Handbook, p.39):\n\"At normally encountered /ratios (say, /5 to /20) no intensity gradient across the disc is perceptible, the border between the disc and the first minimum appears nearly sharp, and the rings are brighter than theory would indicate, the first ring being not much fainter than the disc itself. ... The visible extent of the disc, like the number of rings visible, varies for a given instrument with the brightness of the source, although the discs are in fact the same size, irrespective of brightness.\"\nIn the 17th and 18th centuries the variable diameter of the Airy disks led some astronomers to believe that they were observing the surfaces of stars of different diameters or distances. However early 19th century astronomers such as William Herschel concluded this was an error, and coined the term spurious disc to denote it. In 1828 John Herschel declared flatly that \"these are not the real bodies of stars, which are infinitely too remote to be ever visible with any magnifiers we can apply, but spurious, or unreal images, resulting from optical causes.\" (Note that his intent was to disparage the disk as the image of a physical object, not to disparage the visible disk in contrast to its mathematical description, as some amateur astronomers use the term today.) He continued:\n\"The apparent size of the disc is different for different stars, being uniformly larger the brighter the star. This cannot be a mere illusion of judgment; because when two unequally bright stars are seen at once, as in the case of a close double star, so as to be directly compared, the inequality of their spurious diameters is striking; nor can it be owing to any real difference in the stars, as the intervention of a cloud, which reduces their brightness, reduces also their apparent discs till they become mere points.\" (Encyclopedia Metropolitana, 1828)\nThe paradox of the varying disk diameter and number of rings was explained by Airy in 1835 as due to the luminance threshold of the eye. This is illustrated by plotting the diffraction artifact using a log scale for the luminance (diagram, right), because the relative brightness of lights viewed against a dark background is a logarithmic function:\nΔb = b2/b1 = 100.4(m2-m1)\nThe dotted horizontal lines in the diagram show the relative effect of a visual threshold that extends down to either ~1/10th to ~1/1000th the peak Airy disk brightness. If a magnitude 2 star is bright enough to present three rings, this explanation requires the third ring of a mag. 2 star to appear as bright as a magnitude 9.5 star (diagram below, A).\nSurprisingly, a threshold explanation for the changing angular size of the disk does not logically explain the appearance. For example, the Rayleigh resolution criterion results in a clearly visible dark gap between the Airy disks of two equal magnitude stars, which the diagram of the joint intensity function (above) shows is a brightness of about 73% of the peak disk brightness. But the brightest (first) ring of the diffraction artifact is only 1% of the peak brightness (table, above), and therefore should always appear to be \"dark\" (invisible) for any matched pair that appear to be two separate disks at the Rayleigh angular separation.\nIn addition, a faint star in a large aperture reflector can still display the first diffraction ring even when the Airy disk is noticeably reduced in size, and the diagram (above) shows that this is also inconsistent with a threshold explanation the threshold that would produce a reduced disk will be far above the peak brightness of any ring, so the ring would be invisible.\nFinally, I observe the ring to contract around this smaller disk, maintaining the same dark gap width but becoming slightly thinner (diagram right, B). The ring certainly does not keep the same diameter regardless of the star magnitude, as theory requires: this would produce in very faint stars a visibly enlarged first gap around a much reduced Airy disk (diagram right, C). This contraction of the first ring around the reduced Airy disk also cannot be explained by the threshold model.\nMagnification is the increase in the angular size (apparent width) of an object in comparison to the naked eye size of the object. In telescope optics, magnification results from the combined effect of the telescope objective and eyepiece. But the magnification is obtained in opposite ways: by means of projection magnification in the objective (a function of o), and by means of dioptric magnification in the eyepiece (a function of 1/e). In both cases, image dimensions formed by the naked eye are the benchmark to calculate magnification.\nThe Near Point. The eye has a variable focal length: it can focus on objects at different distances within the fixed distance from the cornea and lens to the retina. An object appears larger is effectively magnified as it is moved nearer to the eye, and this also increases the distance behind the eye at which the object image comes to a focus. To compensate, the eye lens can increase its optical power or accommodate to shorten the back focal length and bring the image of near objects into focus on the retina.\nWhat object distance provides the benchmark for the calculation of magnification? It is the distance that provides the maximum image size on the retina, the minimum distance at which an object will still appear comfortably and completely in focus. This is the point of maximum accommodation, where the lens has contracted to produce its greatest optical power (shortest focal length).\nDioptric (Eyepiece) Magnification. An object moved closer to the eye than the near point will appear larger, but also out of focus because the lens cannot increase its optical power any further. Focusing the image of this closer object is made possible by adding the refractive or dioptric power of a magnifier lens or eyepiece.\nDioptric power is measured in diopters, the reciprocal of focal length (1/) measured in meters. The inverse form indicates that a shorter focal length means greater refractive power.\nMagnification can be defined as the ratio between the half angular height β of the object at its magnified (apparently closer) distance to the eye divided by its half angular height α when viewed by the naked eye at the near point distance of 25 cm, and using the tangent of the angles for precision (diagram, above):\n Me = tan(β)/tan(α)\nThe distance size rule states that the ratio between the tangents of the two visual angles is the inverse of the ratio between the two distances. Thus, an object with an angular height α = 4° that is magnified to an angular height β = 20° will appear magnified by Me tan(20)/tan(4) = 5.2 times, and therefore will appear enlarged as if placed at a distance 250/5.2 = 48 mm (4.8 cm) from the eye.\nThis principle leads naturally to the calculation of the eyepiece magnification as the focal length of the eyepiece standardized on the near point distance of 250 mm (diagram below, right):\n Me = 250/e\nProjection (Objective) Magnification. The projection magnification of a telescope objective is fundamentally different from eyepiece magnification: it is determined by focal length (o), not by the convergence angle of optical power.\nThe comparison here is to the magnification produced by a pinhole camera, which is produced only by the distance between the pinhole and the surface receiving the image. A pinhole has no optical power (no focal length), so to determine projection magnification we use the angular separation α of two rays from an imaged object.\nIn optics, a chief ray is the light path on which a lens or mirror has no optical effect, because it leaves an optical element at the same angle that it entered. This ray projects a greater field height y, measured perpendicular to the optical axis, as focal length increases. Therefore the magnification produced by the telescope objective is a linear function of its focal length (diagram above, left).\nWhat telescope focal length will produce an image of a distant object (such as the Moon) that, when the image is viewed at the near point, will appear exactly the same size as the naked eye view of the Moon in the sky (x)? The answer: when o = 250 mm. So the objective magnification is equal to:\n Mo = o/250\nFor example, the objective in a 250 mm /8 telescope has a magnification of (2032)/250 = 8.13 times.\nThe Moon is 3475 km in diameter at a distance of 384,400 km, but in terms of optical calculations the linear width of its image at the near point is 2.26 mm. Therefore its image diameter at the focal point of an o = 2032 system is 8.13 x 2.26 = 18.4 mm.\nTelescope Magnification. A telescopic image is actually the compound of two different kinds of magnification: projection magnification that increases with increasing objective focal length, and dioptric magnification that increases with decreasing eyepiece focal length.\nBecause one magnification has a multiplying effect on the other, the magnification of the combined telescope and eyepiece system is the product of the separate telescope and eyepiece magnifications. The value 250 cancels out, leaving the ratio of the two focal lengths:\n Mt = Mo·Me = o/250 x 250/e = o/e\nOr, starting with formula , and defining the tangents as α = h/o and β = h/e, we have:\nMt = β/α = (h/e)/(h/o) = (h/e)·(o/h) = o/e\nThus, in a 10\" (254 mm) /8 telescope with a 20 mm eyepiece, the magnification is:\nMt = (254 x 8)/250 x 250/20 = 8.13 x 12.5 = 101.6\nThe diagram (below) summarizes these relationships. The magnification of the objective Mo depends on the distance that the real image is projected beyond the objective near point. The magnification of the eyepiece Me depends on the distance that the virtual image is located in front of the eye near point (green arrows in diagram). The optical effects are reciprocal: objective magnification, as in 17th century instruments, made telescopes larger (with larger relative apertures); high power, wide field dioptric magnification, the main innovation of 20th century eyepieces, allowed telescopes to be more compact (with smaller relative apertures).\nNote that the field stop linear radius h is transformed into the virtual field stop limiting the apparent field of view (the eyepiece projection angle β) by the eyepiece focal length; it can be calculated from those parameters without actually measuring the physical edge of the field stop in the eyepiece. Also, as a feature of the eyepiece, the field stop does not define the maximum image width that can be produced by the objective, only the maximum image width that can be viewed through the eyepiece. The largest feasible image diameter is usually the interior diameter of the largest eyepiece that can be used with the objective, which in commercial 2\" eyepiece barrels is about 1.8 inches or 46 mm.\nWhen calculating magnification, keep in mind that manufacturer supplied data on telescope focal length, eyepiece focal length and eyepiece field stop diameter is often inexact, and therefore magnifications calculated from them should be considered approximate. Dioptric magnification greater than about 10x (e < 25 mm) and free of serious aberrations is not possible with a single lens; a compound lens is required.\nMagnification & Image Brightness. Magnification affects the image illuminance: as magnification increases, the image becomes dimmer. This is because magnification causes a smaller part of the sky (the true field of view) to be passed to the eye, and therefore a smaller quantity of light is being used to fill the apparent field of the eyepiece. The magnification required to produce an exit pupil of a certain size, and the effect of this on image brightness (illuminance), can be calculated starting with the exit pupil equality de = Do/Mt = δ and assuming an eye pupil nominal diameter of 6 mm (table, below).\nThus, an exit pupil of 2.0 transmits only (2/6)2 = 1/9 or 0.1111 the light of an exit pupil of 6.0, which is produced by a magnification of 100x in a 200 mm objective or 175x in a 350 mm objective.\nThe telescopic image of an extended object (the Moon) cannot be brighter than the naked eye image of the same celestial area, due to \"stopping down\" of larger beams by the eye pupil. The telescopic image of a star brightens with aperture, because the larger quantity of light gathered by the larger aperture is concentrated into a star image that, at exit pupils above ~2.0, effectively remains a \"point\" source of light.\nVarious guidelines have been proposed to decide the optimal or most useful astronomical magnification. In this nook of the astronomical literature there are three strategies or approaches, based on exit pupil, target angular width, or image quality.\nThe first two approaches require the observer's visual resolution limit (Rv), the minimum angular width that can be resolved by the naked eye. Estimates of this limit for a normal eye range from 60 up to 300 arcseconds, depending on the type of resolution required. Typically 120 arcseconds is the value used for visual double star astronomy, although the limit becomes larger for faint, low contrast (deep sky) image detail. (Your personal resolution value is easy to measure with an aperture mask and a zoom eyepiece or a series of eyepieces of different focal lengths.)\nThree Magnification Criteria. Aperture (Do) determines the dimensions of the diffraction effects that limit the angular resolution of the telescopic image. In some situations it is useful to select magnification in relation to the visualization of diffraction artifacts or resolution limits. This is the exit pupil approach.\nThe effects of a smaller exit pupil include: (1) greater visibility of the diffraction artifacts in the image, including the resolution limit of the aperture; (2) greater visibility of the effects on diffraction limited resolution of objective aberrations such as lateral color, coma or astigmatism, (3) a reduction in the effect of aberrations created by the observer's eye, due to concentration of the image beam at the center of the lens and cornea, and (4) the shadow projection of distracting \"floaters\" in the eye or of dust particles on the eyepiece eye lens.\nIf Rv is known (or assumed), then the optimal magnification can be determined by the angular size of the diffraction resolution criterion (Ro) of the aperture as:\nMopt = k·Rv·(Do/113) = k·Rv/Ro\nwhere Do is measured in millimeters, 113 signifies the λ/D resolution criterion, and k is a \"comfort factor\" that depends on how much larger than this \"just barely\" visual limit you want the feature to appear. For example, the Rayleigh resolution criterion uses k=1.22, and in a 140 mm /7 telescope this is 1.22·113/140 = 1 arcsecond, which (assuming Rv = 120) requires a magnification of 120x obtained with an 8 mm eyepiece.\nThis magnification is sufficient to make all the image detail just visible to the observer's eye. As an analogy, it is equivalent to holding a printed image just close enough to the eye that the halftone dots in the image are visible, since the dots are the smallest detail the image contains. Any lower magnification will disguise the smallest details, and any higher magnification (for example, k = 2) will make the diffraction details larger and easier to see.\nBecause magnification by definition makes the image of the object you observe larger, it can be recommended by considering the angular size ρ of the smallest feature you are attempting to see, calculated as:\nMopt = k·Rv/ρ\nHere k = 2 to 3 is more common. For example, a typical crater on the Moon is 10 kilometers wide, or about 5 arcseconds when viewed from Earth, which in a 140 mm /7 telescope requires a comfortable magnification (assuming k = 3) of about 3·120/5 = 70x obtained with a 14 mm eyepiece. This object magnification approach guarantees that the object you are looking for will be visually small but nevertheless clearly visible.\nThe difference between diffraction magnification and object magnification is illustrated (below) as the separation in a matched binary about 2.0\" apart (the object interval) viewed through three different telescopes, which produce Airy discs of different diameters (the diffraction interval). Simply by switching eyepieces between the largest and smallest telescopes, different diffraction magnifications appear at similar object magnifications (M ~250x), or similar diffraction magnifications (de ~1.0) appear at different object magnifications.\nHowever, magnification influences many other aspects of the image besides the visibility of diffraction artifacts or the apparent size of features in object space. These include: (1) a darkened sky background that increases the visibility of faint stars or the contrast in extended faint objects such as nebulae, (2) a reduction in objective optical aberrations like coma, distortion or field curvature that increase with field height on the image plane, (3) a fainter and less distinct image, (4) amplification of the visual effects of atmospheric turbulence, focus inaccuracy and instrument vibrations, and (5) greater difficulty centering and manually tracking a target object. A suggested magnification based on any of these purely visual criteria has adopted the image quality approach.\nImage quality is a vague criterion, because it is judgmental rather than calculated, and because image quality depends on many things, for example the optical quality of your objective, the angular width of the object or feature you want to see, collimation, light pollution, and so on. The recommendation to limit your magnification to \"what the seeing will allow\" is one example of the image quality approach: there is no consideration of the exit pupil or object apparent size involved in this suggestion.\nMagnification Recommendations. Whether it is useful to see the resolution limit of the aperture or the smallest feature of an astronomical object depends on whether the image structure or the object structure is the observational interest. Whether you are able to use the magnification necessary to see the artifact or feature you are looking for depends on the quality of the image that results. This in turn depends on your equipment.\nAs a practical reality, the available configurations of amateur astronomical equipment are limited. The available range of apertures is approximately 80 mm to 600 mm; relative apertures range from /4 to /20, eyepiece focal lengths vary from about 5 mm to 40 mm. By combining these extremes we can estimate the equipment limit values for exit pupil (0.25 to 10), magnification (8x to 2400x) and resolution (1.41\" to 0.19\") that suggest practicable opportunities. Suggested magnifications are choices within those ranges supported by good visual reasons.\nMagnification that is defined as a multiple of aperture (in inches or millimeters) is actually a recommendation for the diameter of the exit pupil (de), because the exit pupil can be defined as aperture divided by magnification (Do/M; see below), so magnification is just aperture multiplied by the reciprocal of the exit pupil, Mt = 1/de·Do. Magnification that is defined per se, for example as 200x, is specifically an object magnification recommendation, and is usually given in relation to a specific astronomical target (e.g., the Cassini division in Saturn's rings, the disk of Venus, a 3\" separation in a binary star, the Hyginus Rille on the Moon). Image quality recommendations can use either the exit pupil or object magnification, or the quality of the seeing and light pollution.\nThe astronomical literature commonly adopts the exit pupil approach, both because magnification varies inversely with exit pupil and because absolute magnification values (such as 200x) can potentially be anywhere within the range of magnifications possible with a single telescope and eyepiece selection, meaning they can have widely different image quality implications. The exit pupil serves to anchor all those variations along a dimension of image quality that uses diffraction detail as a magnification boundary.\nMt = Do/δ, e = δN Normal magnification This defines the magnification at which the telescope exit pupil equals the eye pupil aperture of the observer. The rationale for this limit is that any lower magnification produces an exit pupil that is larger than the eye pupil, so that not all the light can enter the observer's eye: this effectively stops down the objective (reduces the illumination of the image) with no visible change in the image resolution. (In a 180 mm /10 refractor or newtonian reflector with a 60° eyepiece field, the normal magnification yields a true field of view of 2°.)\nThis is a dubious rule. Few observers have actually measured their dark adapted pupil aperture (the customary value of 7 or even 8 mm is typically too large ... mine is 5.9 mm), and observing bright objects such as the Moon can contract the pupil to 3 mm or less, wasting even more aperture. Low magnification has benefits unrelated to light grasp: the true field of view is larger, pointing and tracking become easier and less critical, and the effects of poor seeing are minimized. Commercially available eyepiece focal lengths rarely exceed e = 40 mm, so telescopes at relative apertures above /6.7 (most refractors and Newtonians, and all Cassegrain format reflectors) will not reach the prescribed \"normal magnification\" anyway. Dobsonian users are most often concerned (needlessly) with this lower limit. A more important lower bound is:\nMt = 0.25Do to 0.33Do, e = 3N to 4N The so called Minimum useful magnification A magnification between 0.25Do and 0.5Do is sometimes recommended for deep sky observing when a turbulent atmosphere precludes detailed observation of planets or the Moon. However atmospheric turbulence is sufficiently masked at exit pupils roughly half the \"minimum useful\" range, so turbulence is rarely the reason to choose a magnification this low.\nInstead, the critical fact is that the optical aberrations of the cornea and lens are minimized as the exit pupil is reduced, while the size of the diffraction artifact is reduced as the exit pupil is increased. The crossover between these two curves, which occurs in most normal eyes at an exit pupil of around 3.5 (Mt = 0.3Do), produces the smallest diameter stellar image. This is therefore the brightest stellar image that can be produced with the aperture. Because the magnification has also reduced the sky brightness to less than half its naked eye luminance, the relative brilliance achieved through spot size minimization and increased contrast is at its peak. Faint extended objects are also judged to appear at optimal contrast with an exit pupil of 3.0, or e = 3N. The only countervailing issues are when the relative aperture of the telescope is so low that it introduces distracting aberrations in wide field eyepieces at low powers, or when the angular diameter of the target (star cluster, extended nebula, etc.) is very large that is to say, really large (a 180 mm /10 refractor or newtonian reflector with a 60° AFOV eyepiece at the minimum useful magnification yields a true field of view of 1.0° to 1.3°.)\nMt = 0.5Do, e = 2.0N Minimum optimal magnification This is the lowest magnification that will render the largest diffraction limited image detail (the Airy disk) just visible, assuming a very optimistic estimate for the observer's visual resolution (i.e., ~1 arcminute or 60 arcseconds, which gives M = 60/Ro). Note that the observer will not be able to split two matched double stars separated by the telescope's resolution limit. When the Airy disk becomes visible, even small atmospheric turbulence becomes noticeable as well, so this is often the highest magnification useful under conditions of mediocre or poor seeing. (In a 180 mm /10 refractor or newtonian reflector with a 60° eyepiece field, the minimum optimal magnification yields a true field of view of 40 arcminutes.)\nMt = 1.0Do, e = 1.0N Maximum optimal magnification This is usually the magnification that renders the smallest diffraction limited image detail (the aperture resolution limit, or the dark interval between the Airy disk and first diffraction ring) just visible, given a conservative criterion for the observer's visual resolution (i.e., ~2 arcminutes or 120 arcseconds, which gives M = 120\"/Ro). It is also easiest to remember, since the magnification is just the telescope aperture (in millimeters) and the necessary eyepiece focal length is just the telescope relative aperture. Note that this is equivalent to \"Whittaker's rule\", usually stated as Mt = 25Do when aperture is in inches, because 25 is just the number of millimeters in an inch. (In a 180 mm /10 refractor or newtonian reflector with a 60° eyepiece field, the maximum optimal magnification yields a true field of view of 20 arcminutes.)\nHere is where resolution or contrast criteria dominate the choice of magnification. At the low end the magnification is \"the largest that the seeing will allow,\" and at the high end it is bounded by the appearance of fresnel diffraction around star images. This is using diffraction resolution as an image quality criterion. Both effects usually occur within the range 0.5D ≤ M ≤ 1.0D.\nIt is useful to try several eyepieces within the range of eyepiece focal lengths prescribed by the minimum and maximum \"optimal magnification\" factors. This is because variations in magnification cause sky brightness to decrease and make very faint stars more visible, and cause changes in apparent contrast in faint extended objects, making subtle contrast areas larger and more visible. Optimal seeing will allow magnification that shows the diffraction artifacts clearly. Mediocre seeing, atmospheric dispersion or light pollution will push magnification the other way.\nMt = 2.0Do to 4.0Do, e = 0.5N to 0.25N Maximum useful magnification This is the magnification that causes the smallest (diffraction limited) image detail to be just visible given the most pessimistic estimate for the observer's visual resolution (~5 arcminutes, which gives M = 300/Ro). This rule is highly dependent on observing conditions and the observing target. Planetary and lunar observers will generally prefer a lower magnification, within \"the maximum that the seeing will allow\" given the low contrast of planetary detail. In contrast, because the Airy disks of bright stars tolerate high magnification very well, even under poor seeing, double star observers will use magnification beyond the high end of this range. (In a 180 mm /10 refractor or newtonian reflector with a 60° eyepiece field, the maximum useful magnification yields a true field of view of 10 to 6.6 arcminutes.)\nWilliam Herschel was quite explicit about using magnifications over 3000x, which created an exit pupil of 0.05 millimeter in his 165 mm reflector. The question arises whether exit pupils that small become the delimiting pupil in the optical train. The answer seems to be no. Optical studies show an exit pupil below 2 mm down to 0.5 mm does not filter high frequency wavelengths as a foil pinhole aperture would, and therefore they can transmit the objective image very well. The maximum useful magnification has been exceeded when the image is too dark, too blurry (due to the quality of the optics or atmospheric turbulence), or too difficult to view (due to \"floaters\" in the observer's eye, small eye relief, etc.).\nThe image quality rule use the magnification that produces the most useful image summarizes the way that the different image quality and diffraction resolution criteria combine, and leaves the question of object magnification out of consideration. Atmospheric turbulence, the magnitude of stars or the surface brightness and surface contrast of extended objects, the sky brightness, the type and optical quality of the instrument, the quality of the observer's eyes and the specific visual task or pastime all these contribute to the choice of the optimal and most useful magnification.\nThe corollary is: change the eyepiece often. No matter what the visual task or observing target, observing the same target with different eyepieces will verify the best choice, and can reveal unexpected details in the peripheral field or in the target. This desire to see alternative views is one sign that the image effects of magnification are really understood.\nPhysical Attributes. The exit pupil is fundamentally the naked eye image of the telescope entrance pupil (aperture stop) as it appears through the eyepiece (image, right). If the telescope is turned toward the daytime sky, the exit pupil as a virtual image appears as a small, bright disk hovering just above the eye lens of the eyepiece. Like the virtual image in a mirror, it appears to move as you change your vantage.\nThis virtual image is formed by the convergence of all real image rays focused by the eyepiece. At this point the cross section of the projected, afocal real image of the telescope is physically smallest (as shown here). In this fixed position, centered on and perpendicular to the optical axis, it is traditionally called the Ramsden disc in the United Kingdom, in honor of the 18th century scientific instrument maker who first described it.\nAll real image rays means that a physical baffle with the same internal diameter as the exit pupil could be placed around it without obstructing any of the light exiting the eyepiece. The observer's correctly positioned iris mimics a baffle or stop when the telescope is used for visual astronomy; in that context the intersection of the exit pupil with the optical axis is called the eye point.\nFinally, the exit pupil is the point where the telescope afocal image is most concentrated and therefore brightest; it is used as the benchmark luminance in the calculation of changes in image brightness caused by magnification.\nThese three prosaic physical attributes of the exit pupil virtual image, smallest real image, brightest projected image belie the almost fetishistic importance that some astronomers attach to it. In the evaluation of an optical system, as Smith, Ceragioli & Berry (2012) recommend doing it, \"all that matters is the diameter of that exit pupil!\" That claim invites a detailed examination.\nDefinitions. The most primitive method to specify the exit pupil is to measure its diameter (in millimeters) with a reticule magnifier. This often precedes the use of the exit pupil to calculate the telescope magnification as the ratio between objective aperture (Do) and exit pupil diameter (de) the afocal beam compression of the system:\n Mt = Do/de\nIn practice, measuring the size of the exit pupil is inconvenient (especially when it is small), so it is simpler and usually more accurate to calculate the telescope magnification as the ratio of objective focal length (o) to eyepiece focal length (e). Then the exit pupil diameter can be calculated as the ratio between the objective aperture and the telescope magnification:\n de = Do/Mt\nThe logic of this definition is rarely explained. It is based on the fact that the exit pupil is the naked eye image of the entrance pupil (the objective mirror or lens). If we replaced the objective/eyepiece combination with a single objective lens, its object magnification would be equal to its focal length (o). As explained above, this single objective will have a magnification Mo = o/250. Substituting, we have\nde = Do/Mo = Do/(o/250) = 250·(Do/o) = 250/No\nSo the exit pupil calculation  based on the ratio of aperture to magnification is identical to the apparent size of the entrance pupil in a single objective system whose relative aperture (No) produces the same magnification. And this single objective must have a very large relative aperture to achieve the necessary magnification for example, No = 250 when de = 1.0 mm and Mt = Do.\nBecause the eyepiece has been omitted, this single objective would not form a classic Ramsden disc of real image rays. We can, however, make the comparison in this way. If we place a 1 mm exit pupil at the near point, 250 mm from the eye (the distance of an \"actual size\" magnification of the object being viewed), its angular width will be 1/250 radian (0.23° or 13.75 arcminutes), and this matches the angular diameter of the single objective entrance pupil when viewed from the N = 250 focal distance. The exit pupil is identical to the image of the aperture.\nThe significance of relative aperture in the system magnification of formula  becomes obvious if we substitute the common formula for magnification mentioned above (Mt = o/e), which yields a second definition of the exit pupil:\n de = Do/(o/e) = e·(Do/o) = e/No\nAgain, start with a single N = 250 objective: this will have an aperture image equivalent to an exit pupil de = 1.0. The entrance pupil, viewed at the focal distance, will subtend an angular width of 1/250 radians = 0.23° or 13.75 arcminutes. But at smaller relative apertures the focal point will be closer to the entrance pupil and therefore the aperture image will appear much larger: for example, in an /10 objective, the entrance pupil will appear to be 5.73° wide.\nEyepiece magnification, because its effect on image magnification is the same as extending the objective focal length, is equivalent to reducing the entrance pupil angular size by division. As explained above, eyepiece magnification is calculated as Me = 250/e. So an e = 10 mm eyepiece (which according to formula  yields an exit pupil of 1.0 in the /10 system) provides a magnification of 250/10 = 25x, and adopting the 5.73° entrance pupil image in an /10 objective, we have 5.73°/25 = 0.23° or 13.75 arcminutes. As before, the telescope exit pupil viewed from the near point is identical to an objective entrance pupil of equivalent magnification (focal length) viewed from its focal point.\nObject vs. Diffraction Magnification. This second formula indicates that there are only two practical ways to change the diameter of the exit pupil with a telescope of given aperture: change the eyepiece focal length e, or change the objective relative aperture No, either by using a Barlow lens or a focal reducer.\nThere is however a third way to reduce the exit pupil: by means of an aperture stop (an opening that is smaller than the full aperture). This demonstrates that we can change the size of the exit pupil without changing the object magnification of the system. A reduced entrance pupil does not affect the focal length of the objective or the eyepiece, so the telescope magnification the apparent size of any physical object we observe with the telescope is unchanged. Instead, a reduced entrance pupil increases the linear resolution of the system, in effect magnifying the physical diameter of a star diffraction artifact at the focal surface, and it does so simply by changing the relative aperture (No) of the objective.\nThe diagram (below) summarizes these relationships between eyepiece and magnification, and between relative aperture and aperture, in the definition of the exit pupil. Notice, in order to get from formula  to both values in the ratio of formula , we must scale both elements of formula  by dividing them into the physical dimension of objective focal length (o). In effect, formula  is a dimensionless or scale free version of formula .\nFor clarity, I refer to these two forms of magnification by the nonstandard terms object magnification and diffraction magnification, respectively.\nThe resolution of a system is commonly used to benchmark, if not limit, the high end of magnification. But because we have two definitions of magnification, we require two matching definitions of minimum diffraction width: (1) as an angular width (visual extent in image space) expressed in arcseconds, which corresponds to object magnification dependent on aperture; and (2) as a linear width (physical extent on the image plane) expressed in millimeters, which corresponds to the diffraction magnification dependent on the relative aperture:\n[4a] angular width: Ro = 206265·λ/Do arcseconds\n[4b] linear width: So = λ·No millimeters\nwhere 206265 (the number of arcseconds in a radian) projects the metric into a visual space of angular dimensions and the relative aperture No projects the metric onto an image plane of physical dimensions. The metric defined by diffraction bands of \"yellow green\" light (λ = 0.00055) yields Ro = 113.4/Do arcseconds of angular width and So = 0.00055·No mm of linear width.\nTo determine whether these angular or linear intervals will be visible to the human eye, they must be compared to a naked eye resolution limit defined with the same measurement geometry:\n(1) The angular limit (Rv) is the minimum angular separation in cycles per degree or equivalent arcseconds that can be resolved by an observer with normal vision. A commonly used value is: Rv = 120 arcseconds.\n(2) The linear limit (Sv) is (2) the minimum linear spacing in a square wave grating viewed at the near point distance (250 mm), and stated as line pairs per millimeter or the reciprocal single pair width in millimeters, that can be resolved by an observer with normal vision. A commonly used value is: Sv = 0.1454 millimeters.\nNow we can determine the exit pupil at which diffraction limited detail can be visually resolved in the image of telescopic objects as the ratio of the matching telescopic and visual resolution limits:\n de = Ro/Rv = So/Sv\nand when Ro = Rv then this \"exit pupil of visual resolution\" will be de = 1.0 by definition.\nThe reference values of Rv and Sv are population averages and, depending on the condition of your eyes, your individual visual acuity may be larger or smaller than the normative values. For example, my naked eye resolution is approximately Rv = 100 arcseconds, so diffraction limited detail (the interference bands) is visible to me at de = 1.13. The fact that Rv is typically close to Ro and diffraction limited detail is visible to a normal observer at an exit pupil of ~1.0, indicates that normal human visual acuity is approximately diffraction limited.\n Mt = Do(Rv/Ro) or Do(Sv/So)\n e = No(Ro/Rv) or No(So/Sv)\nNote that the ratio of optical to visual resolution is inverted between the two formulas one definition is the reciprocal of the other.\n\"Wasted\" Light & \"Empty\" Magnification. The exit pupil is a convenient metric for selecting an eyepiece magnification suitable for the parameters of any specific telescope system. It's easy math to multiply focal ratio by the desired exit pupil value to get the necessary eyepiece focal length.\nHowever, the exit pupil has also been used to define the factitious twin \"problems\" of wasted light (or wasted aperture) and empty magnification. These are worth debunking.\nThe astronomer is often advised to prevent \"wasted\" light by avoiding magnification that creates an exit pupil larger than the dark adapted eye pupil, where de > δ. The argument is that an eye pupil smaller than the exit pupil will block some light from entering the eye, effectively stopping down the objective aperture.\nThe premise for a \"wasteful\" judgment is demonstrably feeble. With most commercially available astronomical equipment, it is unusual for a practicable exit pupil to exceed the eye pupil aperture. With an /6 telescope and a pupil aperture of 6 mm (my measured dark adapted pupil size), an eyepiece with focal length greater than 36 mm would be necessary. Even in an /4 telescope, only eyepieces above 24 mm would create the situation.\nSo why would one want to use a \"wasteful\" 30 mm eyepiece in an /4 telescope? Because a longer focal length eyepiece offers a wider, lower power view of an extended object, and provides maximum eye relief for any type of eyepiece design. Low magnification is used to increase the true field of view and viewing comfort at the cost of \"wasted light\" in the same way that high magnification is used to increase visual resolution at the cost of reduced image luminance and true field size. In fact, the most serious drawback when de ≥ δ is that image contrast is maximally reduced by the brightness of the background sky, making faint stars or extended objects more difficult to see.\nAt the other extreme, \"empty\" magnification is said to be any enlargement greater than sufficient to make the smallest diffraction detail visible to the eye. The logic is that you are no longer resolving detail in the celestial object of interest (e.g., the surface details of a planet or the Moon) but resolving the diffraction that actually obscures detail, like the pixelation of a digital image.\n de = 138.4\"/Rv mm (Rayleigh criterion)\n de = 113.4\"/Rv mm (λ/D or Abbe limit)\nThus, adopting the commonly cited visual resolution threshold of 120\" and the Rayleigh resolution criterion predicts that the dark rings around the Airy disk will be resolved when the exit pupil is de = 138.4/120 = 1.15, and the Airy disk will be detectable when the exit pupil is twice as large (de = 2.3). Conventional wisdom asserts that an exit pupil half as large (de < 0.6 mm) only provides \"empty magnification\" because the eyepiece magnification is then more than twice the amount required to resolve the diffraction limited image detail.\nThis abstract reasoning ignores any situation where the diffraction artifact is actually what you want to observe. Because the Airy disk is quite robust to magnification when the seeing is mediocre, exit pupils below 0.2 are routinely valuable when resolving close, bright double stars and counteracting the image motion of turbulence. (William Herschel employed exit pupils as small as 0.03 when studying double stars with his \"most excellent\" /13 reflector.) Very small exit pupils are also necessary when conducting a star test of optical quality or to evaluate the seeing. There is no such thing as \"empty magnification\" only magnification that is not optimal for the visual task at hand under actual observing conditions.\nThe linear diameter of the Ramsden disc does have important visual consequences. A small exit pupil (less than 1.0 mm) projects light like a pinhole, which can cause vivid shadowing of suspended internal debris or \"floaters\" on the retina. At the same time the tiny Ramsden disc must be centered in the plane of the iris aperture to produce a view of the entire eyepiece field, which becomes a kinesthetic challenge in very wide angle eyepieces or awkward viewing postures unless the observer has a chair or ladder for support. On the other hand, a smaller exit pupil is only refracted by the central portion of the eye lens and cornea, minimizing the effects of astigmatism. For that reason, many older viewers prefer smaller exit pupils.\nMore significant problems with the exit pupil occur when observing during daylight with a binocular or spotting telescope. The high luminance of daylight images contracts the pupil aperture to 2 mm or less, and this makes alignment of the eye pupil and exit pupil(s) more difficult. It also makes any spherical aberration of the exit pupil more noticeable.\nImage Brightness. In addition to estimates of magnification in relation to diffraction limited resolution, the exit pupil is also used as a benchmark for relative image brightness. Here eye pupil diameter δ (also measured in millimeters) is required for the calculations.\nThe first  definition of the exit pupil represents the same proportion that defines the telescope image illuminance in relation to the retinal illuminance the ratio in the brightness of the telescope image to the brightness of the naked eye image of the same area of sky:\n It = (Do/Mtδ)2, therefore It = (de/ δ)2\nAs explained above, the size of the exit pupil is related to the system magnification, so that as magnification increases the true field of view gets smaller and the exit pupil, through which all the light exiting the telescope must pass, also gets smaller. As a result, variations in the exit pupil diameter affect the exiting illuminance of the telescope image in the same way that the opening in a camera diaphragm determines the amount of light that can enter a camera. As the exit pupil gets larger, the image luminance increases (graph, left).\nThe \"shutter\" and magnification effects combine to brighten or darken the image in inverse square proportion, and the difference in the illuminance of the telescope image equals the ratio of two exit pupils squared. The peak image brightness occurs when de = δ. At that point, the telescopic image is theoretically just as bright as the naked eye image of the same area of sky, omitting transmission loss in the instrument (which in practice is usually significant).\nReferring again to the concept of the exit pupil as the image of a single objective entrance pupil viewed from the objective focal distance, an exit pupil of 6.0 indicates the image brightness of an /(250/6) = /42 optical system with an entrance pupil apparent diameter of 83 arcminutes (1.38°).\nBecause any larger exit pupil diameter will exceed the nominal eye pupil aperture, de > δ, the fixed eye pupil becomes the limiting factor as the exit pupil is increased. The area sampled by the fixed eye pupil size is a smaller part of the total exit pupil area, effectively stopping down the objective aperture at the output end. Image brightness again declines.\nApparent Field of View\nThe AFOV is measured as the projection angle of the radius (β) or diameter (2β) of the field stop (diagram, below). The tangent of this angle is equal to the radius of the field stop opening divided by the eyepiece back focal length (BFL).\nThe physical diameter of the eyepiece barrel and location of the field stop are dictated by the optics of the eyepiece (its abaxial aberrations and design AFOV) and the ratio of the objective (see here). The field stop excludes abaxial light from the objective that would produce aberrations in the eyepiece image or an unacceptably dark image, and blocks stray light reflected from the interior of the telescope tube. The barrel diameter limits the maximum internal diameter of the field stop, to ~27 mm in a 1.25\" eyepiece barrel and ~46 mm in a standard 2\" eyepiece barrel. In all well made eyepieces, the field stop will define the apparent field of view and will be crisply in focus.\nThe apparent field of view of an eyepiece is normally specified by the manufacturer, along with the eyepiece focal length and design type. However, the nominal AFOV of an eyepiece is often inflated due to the effects of positive distortion, especially in \"wide field\" eyepieces (AFOV > 60°).\nWhen the manufacturer's apparent field specification appears inaccurate, or is not known, then the AFOV can be measured in three ways:\n(1) Projective Measurement. Support the eyepiece so that it is lying on its side with the eye lens about 2 feet from a smooth wall or flat surface. (The seam between pages of an open hardcover book, or between two books of the same thickness laid spine to spine, is convenient.) Support a high powered flashlight in a similar way so that it shines into the field lens (barrel end of the eyepiece) from a distance of a few feet. (The eyepiece and flashlight should be lying perfectly level, the optical axis of the eyepiece and flashlight must be perpendicular to the wall, and the flashlight must be \"collimated\" or centered on and parallel to the eyepiece optical axis, which can be arranged by centering the shadow of the flashlight bulb inside the projected circle of light.) The eyepiece will project the light from the flashlight onto the wall as a circle of light larger than the flashlight beam. Project the image onto a small white card held close to the eye lens, and move the card back and forth until the projected circle appears smallest: this is the location of the exit pupil. Measure the greatest width of the circle (D) and the projection distance (P) from the eyepiece exit pupil to the wall. Then:\nAFOV = 2arctan(D/2P).\nFor example, if the imaged diameter is 82.3 cm, and the wall to exit pupil distance is 73.3 cm, then:\nAFOV = 2arctan(D/2P) = 2 x arctan(82.3/(2 x 73.3)) = 2 x 29.3° = 58.6°.\n(2) Visual Measurement. Tape to a convenient wall a long strip of paper or tape measure on which small increments (inches or centimeters) are clearly marked and visible from a distance (Dm) of about 100 cm. Hold the eyepiece over one eye so that the full field is clearly visible and superimposed over the measurement tape, visible with the other eye. Manipulate the eyepiece position until the tape appears to measure the full diameter of the eyepiece field (De). Then:\nAFOV = 2arctan(0.5De/Dm).\nFor example, viewing a metric measuring tape from 100 cm, you measure an apparent width of the eyepiece field as 93 cm. Then:\nAFOV = 2arctan(0.5 x 93/100) = 2arctan(0.47) = 2 x 25° = 50°\n(3) Physical Measurement. Use calipers to measure the interior diameter of the field stop, assuming it exists and can be recognized. If in doubt, look through the eyepiece and use the tip of a toothpick or pencil to locate the field stop: this is either the end of the eyepiece barrel or the interior edge of the lock nut holding the field lens. (Note that many \"super wide field\" eyepieces locate the field stop inside the eyepiece where it cannot be measured.) Then the apparent field is simply the visual angle α that the field stop radius would subtend at 250 mm, divided by the apparent field radius β. The distance size equation then makes this equal to:\nAFOV = 2arctan(0.5Dfs/e).\nFor example, if the field stop diameter is 23 mm and the eyepiece focal length is 20 mm, then:\nAFOV = 2arctan(0.5Dfs/e) = 2arctan(11.5/20) = 2arctan(0.58) = 2 x 29.9° = 59.8°.\nLateral View of AFOV. Often a wider field of view requires looking to one side of the field, which causes vignetting by the edge of the exit pupil. The field stop is usually apparent in the peripheral field of centered vision, but directing the gaze to the edge of field requires the observer to move his head in the opposite direction to avoid obstruction by the edge of the exit pupil.\nFor an eye of normal focal length (24 mm), the minimum diameter exit pupil that allows direct lateral viewing of the field edge from a fixed eye position is:\nEPρ = 12·tan(AFOV/2-arctan(δ/24)).\nwhere δ is the diameter of the viewer's dark adapted pupil. For example, given an eyepiece with AFOV = 70° and an eye pupil δ = 6 mm, we have:\nEPρ = 12·tan(70°/2-arctan(δ/24)) = 12·tan(35°-14°) = 4.6 mm.\nWith a 10 mm eyepiece, this limit is reached with an /2.2 or larger focal ratio objective, or for any object magnification greater than 0.22Do, which is below the minimum useful magnification established by image quality criteria. Solving for a maximum 6 mm eye pupil, a fully visible field of view requires an exit pupil no smaller than 5.8 mm with an 80° apparent field of view, 3.4 mm with a 60° AFOV, 2.3 mm with a 50° AFOV, and 1.8 mm with a 45° AFOV.\nTrue Field of View\nThe exit window admits to the eye an image that has been magnified by both the telescope and eyepiece. The effective size of the exit window, if the image area it defines were viewed with the naked eye, would appear much smaller and much farther away (diagram, above). The area of sky that would be visible through that opening at that distance is equivalent to the true field of view (TFOV) of the objective/eyepiece combination.\nStandard Formulas. The TFOV is equal to twice the maximum field angle (α) focused by the objective on the image plane that is admitted to the eyepiece by the physical radius of the field stop (h'). Since α is a linear function of the focal length (o), the TFOV is:\nTFOVo = 2αmax = 2h'max/o.\nBy substitution, the TFOV is calculated as the apparent field of view (AFOV) divided by the image magnification (Mt):\nTFOV = 60·AFOV/Mt arcminutes.\nThus, if the apparent field of view of an eyepiece is 50°, and the magnification of the telescope and eyepiece combination is 200x, then the true field of view is:\nTFOV = 50°/200 = 0.25°; or 0.25° x 60 = 15 arcminutes\nIn the diagram (above), an eyepiece with a 50° field of view offers the same visual area as a circular opening 23 cm in diameter held perpendicular to the eye at a 25 cm distance. Then the true field of view is equivalent to the area of sky seen through the same circular opening placed at a distance of 50 meters (164 feet).\nMaximum Posible TFOV. If the field stop diameter and objective focal length are known, then the maximum possible TFOV can be calculated as:\nTFOV = 57.3·(Dfs/o) degrees.\nThis formula can also be used to calculate the maximum true field of view possible with an eyepiece barrel or a visual back of a certain diameter. For example, in a 254 mm (10\") /8 telescope and a 1.25\" (27 mm) eyepiece barrel, the maximum true field of view is:\nTFOV = 27/2032 x 57.3° = 0.76° x 60 = 46 arcminutes.\nUsing a 2\" (46 mm) eyepiece barrel, the maximum true field of view is:\nTFOV = 46/2032 x 57.3° = 1.30° x 60 = 78 arcminutes.\nStar Drift Measurement. If the field stop diameter and apparent field of view are not known, the true field of view can be measured by means of star transit times. This requires at least three measurements of the time (in seconds) it takes a bright star, placed outside the eyepiece field of view, to appear at one side of the eyepiece field, cross the center of the field, and disappear at the opposite side.\nCare must be taken to hold the head in a fixed position at the eye point, so that the entire circumference of the field edge is visible, and to pass the star through the center of the eyepiece field.\nThen the true field is the average of the three timings multiplied by the cosine of the star's declination (stars closer to the celestial pole will require a longer time to transit the eyepiece field):\nTFOV = 0.25cos(Declstar)·t.\nThe factor 0.25 is necessary to convert from seconds in time to arcminutes of angular width. For example, using Regulus (alp LEO) as the transit star (Declination = +11°58'), three eyepiece transit times are 134, 131 and 138 seconds. Then:\nTFOV = 0.25 x cos(11.97°) x (134+131+138)/3 = 0.25 x 0.978 x 134.3 = 32.8 arcminutes.\nGiven the TFOV (in arcminutes) and system magnification, the AFOV (in degrees) is:\nAFOV = TFOV·Mt / 60.\nThe TFOV determined by star transit measurements will typically not correspond exactly to the TFOV calculated from the manufacturer supplied eyepiece apparent field of view and the magnification calculated from the manufacturer supplied eyepiece focal length. This is usually because the eyepiece AFOV and e are nominal, inferred from the computer optical design rather than the physical construction of the eyepiece and because star transit times includes some systematic measurement error due to curvature of field; taking transit times in a commercial SCT, whose focal length changes with mirror focusing, also can create small discrepancies.\nThese errors are typically not large. The chart (right) compares the TFOV of over 60 different eyepieces, as calculated from the nominal eyepiece AFOV and e and as measured by star transits. The calculated AFOV overestimates the measured TFOV by about 4% on average; the overestimation is not correlated with AFOV but is largest (up to 22% greater) at the shortest eyepiece focal lengths (highest magnifications) and in certain eyepiece brands or designs (Orthoscopics).\nFinally, what is the telescope configuration that maximizes or minimizes the true field of view?\nThe four charts (left) show the true fields that result from all possible combinations of aperture (from D = 80 mm to 500 mm), relative aperture (from N = 4 to 20), objective focal length (from o = 320 mm to 10,000 mm) and object magnification resulting from eyepiece focal lengths from e = 3.5 mm to 40 mm with a moderately wide (70°) apparent field of view. The charts assume that a ~50 mm eyepiece barrel can be used with all apertures.\nThe vertical spread in the charts for aperture, relative aperture and focal length are produced by variation in the other two factors and eyepiece focal length; the single curve for magnification results because the combination of the other system factors produces a unique value. The vertical spread variation within any single factor caused by the other factors is largest in relative aperture, nearly as large in aperture, and only somewhat reduced in objective focal length. Only magnification has a strict relation to field of view, as we'd conclude from its role as the denominator in the calculation of TFOV from AFOV.\nHowever, it's the degree of slope or curve in the plots across their range of values that signifies how important each factor is to TFOV, and clearly the most potent feature is magnification, followed by the major component of magnification, objective focal length (where values are spread vertically by eyepiece focal length). Aperture, by itself, has a much reduced effect and relative aperture (or \"fast\" optical design) has the weakest independent effect of any factor.\nRichest Field Telescopes\nA richest field telescope (RFT) is the combination of telescope objective and eyepiece design that provides the brightest image within the widest practicable field of view or, in the original definition, that can show \"more stars in the average Milky Way view than any smaller or larger telescope can show.\"\nThis design criterion is dependent on three parameters: exit pupil, objective aperture and eyepiece apparent field of view (AFOV). Separate from those design features, relative aperture (focal ratio) and eyepiece focal length should be chosen to minimize optical aberrations or vignetting:\nExit pupil (de) determines the diameter of the compressed light beam that is passed to the eye by the aperture. To ensure a maximally illuminated image, the common recommendation is an exit pupil that matches the diameter of the observer's dark adapted eye pupil (nominally 7 mm, but in older observers more often between 5 mm to 6 mm). However, as explained above, the brightest stellar images are actually produced at an exit pupil of around 3.5 mm, so exit pupils down this far are also acceptable.\nAperture (Do) determines the limit magnitude of the system and therefore the total number of stars (or features of dim extended objects) that will be visible above the observer's dark adapted luminance threshold. Because exit pupil is fixed, and Mt = Do/de, the choice of aperture also defines the object magnification (Mt).\nBy the selection of eyepiece apparent field of view, the object magnification determines the true field of view. A larger aperture increases the limit magnitude but reduces the true field of view, and this can be partially compensated by choosing eyepieces with the widest practicable field of view.\nFinally, because aperture and magnification are fixed, the relative aperture (No) only affects the eyepiece focal length (e) as e = No/de. If the exit pupil is fixed at 4 mm, then the largest relative aperture is around N = 10, because the focal lengths in commercially available wide field or super wide field eyepiece series are usually no longer than 40 mm.\nAlthough not included in the original RFT concept, optical aberrations can become a practical constraint on RFT design and may suggest starting the design specification with an exit pupil smaller than the eye pupil. Eyepiece focal lengths should not be so long as to introduce coma, astigmatism or spherical aberration of the exit pupil at low powers or in super wide field optical designs. If (to avoid aberrations) eyepieces are used with focal lengths in the 20 mm to 25 mm range, then we'd require telescope relative apertures of between 3.5 to 4. On the other hand, the objective must not introduce excessive coma or chromatic aberration, which suggests a relative aperture of 5 or 6, which requires eyepieces in the 30 mm to 36 mm range. These complications are normally ignored in an RFT specification, although balancing the optical quality of eyepiece and objective usually suggests a relative aperture of 4 to 6 for eyepieces in the 16 mm to 25 mm range.\nGiven these considerations, what is the optimal combination of aperture and magnification (exit pupil) for the objective, and of the relative aperture and eyepiece focal length? To answer that question some measure of the system performance is required.\nS.L. Walkden, in the original RFT paper (1936), proposed using an estimate of the number of stars per square degree of sky visible with a given aperture. This star count density is calculated as the magnitude limit of the aperture divided by the squared magnification that is delivered by the exit pupil at that aperture. Given a specific aperture Do and exit pupil (de) measured in millimeters, the objective magnitude limit mD, aperture star count per unit area of sky (KD) and magnification adjusted star count RFTD can be estimated as follows:\nmD = 2.8+5*log(Do)\nKD = 10(0.0003*mD3+0.0019mD2+0.484mD3.82)\nMt = Do/de\nRFTD = KD/Mt2\nWith this metric one finds that the star count peaks at around D = 70 mm (diagram above, blue curve). This is also Walkden's original conclusion, and illustrates his intent to find a unique advantage for small apertures in an era of giant telescopes. However the range of high values is approximately 40mm to 120mm, which suggests the optimal RFT telescope is actually a large aperture, low power binocular especially as a binocular view is usually judged to be about ~0.4 magnitude brighter than a monocular view at the same aperture and magnification.\nOther authors, for example Glenn Shaw (Sky & Telescope March, 1980), use empirical star counts in different parts of the sky, and this method gives widely ranging results, including apertures above 200 mm. This demonstrates that a star count metric by itself not determinative. Star count is a heuristic that leads to the concept of an RFT, but does not usefully define the parameters of an RFT.\nHowever, scaling the RFT aperture on a rudimentary luminance weighted star count formula\nRFTD = mD·KD/Mt2\nproduces a gently peaking curve at 150 mm with a broad maximum between 90 mm to 260 mm (~3.5\" to ~10\"; diagram above, yellow curve); these apertures deliver a large true field of view between 6.2° to 2.2° with modern super wide angle (80° AFOV) eyepieces. Note that the size of the exit pupil does not affect the shape or placement of these two curves.\nThis finding is consistent with Walkden's admission that a 7\" aperture might be more suitable as an RFT, because \"with the larger telescopes, the proportion of strikingly bright looking stars increases rather rapidly and the proportion of faint looking ones decreases rather rapidly; so that except in actual number of stars to be counted, the fields of the larger telescopes generally look richer, and decidedly more splendid.\"\nThese sentiments match the recommendation by Robert Ayers that the optimal RFT refractor has an aperture of 80 mm to 200 mm with relative apertures between N = 4 to 6. There is a trivial change in the luminance weighted star counts across this aperture range, which verifies Shaw's observation that he could see no difference between 6\" and 8\" RFT scopes. And as a historical note, E.E. Barnard used a 250 mm, /5 Petzval or \"portrait\" lens for his high resolution, wide field and splendidly rich photographs of the Milky Way.\nGiven that the longest focal length offered in most commercial eyepiece lines is 40 mm (which gives a ~7 mm exit pupil at N = 6) and that optical aberrations become severe at relative apertures smaller than N = 4 or (at the same relative aperture) in larger apertures, we can reorder the terms and restate the abstract RFT specification as follows:\nan RFT is a large aperture binocular or modest size telescope used for visual astronomy; it must have a sufficiently small aperture (Do <260 mm) and short focal length to deliver a low magnification and aberration free image through a large (~4 mm) exit pupil and low power (e = 20 mm to 30 mm) wide angle or super wide angle (AFOV >70°) eyepiece.\nNote that this specification replaces a bracket of relative apertures with a range of eyepiece focal lengths, as the two are equivalent ways to describe an RFT.\nAyers offers cogent arguments in favor of choosing a refractor over a reflector for an RFT although, as already pointed out, large aperture, low magnification binoculars (D = 60 to 100 mm) are highly suitable for very wide field views. If one is interested to use the fastest feasible ratio, a large aperture (~250 mm) Newtonian reflector with coma corrector is an attractive alternative disregarding the vignetting effect of the central obstruction, which is rarely noticeable to the visual astronomer.\nEffect of Central Obstruction\nResolution is affected by wave diffraction effects, but so too is the potential of the objective to transmit contrast information at different spatial frequencies. Transmission is specifically affected by a central obstruction, such as the secondary mirror in a Newtonian or Cassegrain design, which creates an annular rather than circular aperture geometry and diffraction at four edges on the diameter rather than just two. This obstruction ratio is defined as:\nobstruction ratio (η) = Ds / Do\nwhere Ds is the diameter of the secondary obstruction, the mounting for the secondary mirror.\nThe standard method to evaluate optical performance across a range of spatial frequencies is the modulation transfer function or MTF. The MTF shows the proportion of luminance contrast that is retained in the image formed by an optical system as the spatial frequency of the luminance variations is increased. Geometrically, the MTF calculation is equivalent to the area of overlap between two aperture superimposed at a displacement equal to the spatial frequency.\nThe stimulus used is either a pattern of crisp black and white lines (to evaluate the transmission of sharp edges) or a sine wave pattern of modulated grays (to evaluate the transmission of tonal gradients). Both methods converge on similar conclusions.\nModulation transfer is defined as the reduction in image contrast between the range of the luminance in the image (LI) as a proportion of the range of luminance in the target or stimulus (LS):\ncontrast ratio = (LImax LImin) / (LSmax LSmin)\nBecause diffraction produces a tiny amount of smearing in the image, contrast is imperceptibly reduced at low spatial frequencies (wide spacing) but becomes severe at high spatial frequencies (very narrow spacing). So the MTF is scaled to zoom in on the high spatial frequencies, defined as the inverse of the angular spacing in multiples of the minimum theoretically resolvable angular spacing (λ/Dmm). For example, the Rayleigh criterion of resolution is defined as 1.22λ/D, so its spatial frequency in an MTF is 1/1.22, or 0.82. (The MTF is sometimes graphed in terms of line pairs per millimeter (lp/mm) for a specific telescope relative aperture, but this produces the same focus on high frequency spacing and the compression of low frequency spacing at the far left of the graph.)\nThe green line in the generic MTF diagram (right) shows the curve for an optically perfect and unobstructed circular aperture transmitting a sine wave pattern with a spacing frequency up to the resolution limit which in a 250 mm /10 telescope is a stimulus angular separation of 0.45 arcseconds or a spacing on the image plane of 0.0055 mm or 182 line pairs per millimeter.\nThe yellow line shows the effect on the contrast ratio of a 25% obstruction, typically the upper limit in an /8 Newtonian reflector, and a 50% obstruction, the upper limit in a Cassegrain design optimized for astrophotography (Ritchey Chrétien or Schmidt Cassegrain). Both patterns can be summarized (reading the graph left to right) as (1) a negligible (less than 10%) contrast reduction in spatial frequencies from the full image diameter down to about 10 times the Rayleigh limit, (2) a significant drop in resolution down to about 2 or 3 times the Rayleigh limit, (3) an increase in resolution that can exceed an unobstructed aperture by a small amount (due to enhanced contrast caused by overlapping wave reinforcement), and (4) resolution matching the theoretical minimum at the Rayleigh limit.\nUsing the 50% obstruction curve as an example, the greatest relative loss of contrast occurs between 2 and 3 times the minimum resolution, or an angular width of about 1.5 arcseconds. This means the most severe image degradation will occur in lunar features that are about 3 kilometers wide, but will produce a slight crispening in features half that size. It will most affect features that are about 3% of the width of Jupiter's disk at opposition or about 6% the width of Mars's disk at opposition. Contrast on the Galilean satellites of Jupiter and on the disks of Mercury, Uranus and Neptune would be strongly obscured or obliterated. Double stars separated by about 1.3 arcseconds would be most compromised, but very close pairs would be easier to separate.\nWhether and how much a central obstruction matters depends somewhat on the size of the aperture, but more on the specific task the telescope is used to perform. Astrophotographers can be tolerant of a large central obstruction because they typically work on an image scale of 1 pixel = 5x the resolution limit, and image contrast can be enhanced with image stacking and digital manipulation.\nFor visual astronomers the problem is more complex. Inherently high contrast targets such as the moon and double stars will display relatively minor contrast reduction, and the effect will depend on magnification, because human contrast sensitivity peaks at around 7 cycles per degree (around 10 arcminutes) and declines as frequency increases. At the other extreme, low contrast and dim targets such as deep sky objects will be minimally affected because the fovea cannot function at their low luminances. This leaves planetary observation and close double stars widely different in magnitude as the targets where the size of the central obstruction can be a critical issue, one reason that Newtonian or refractor telescopes are often preferred by planetary and double star observers.\nOptics of the Eye\nThe eye is an equal component with objective and eyepiece in the performance of an optical system. The critical performance dimensions for astronomy are dark adaptation, hue discrimination, and resolution as a function of stimulus brightness and stimulus/background contrast. However I begin with a topic that is customarily minimized or ignored in discussions of visual performance: individual differences.\nHuman vision is generally characterized in three ways: by describing the physical structure and theoretical optics of the eye; by calculating the optical performance of \"ideal\" or mathematical eyes; and by measuring individual performance in a variety of visual tasks.\nVisual performance is measured using tasks of detection (the stimulus is declared to be visible or not visible), matching (two stimuli are declared to be or are adjusted by the observer until they appear to be the same), discrimination (similar stimuli can be identified as different in some way) or resolution (two separate stimuli can be perceived as separate rather than as a single stimulus).\nIn all cases, statistical theory is required to summarize performance across individuals. Stimulus thresholds in detection or discrimination are defined as the stimulus value that produces a 50% or 95% probability that an average person will respond with the necessary detection or discrimination. Matching stimuli are defined by the average and standard error of stimulus values judged to be the same, or the average just noticeable difference (JND) that produces detection that they are different. These measurements are then used to create models of average, typical or \"normal\" human performance.\nAll descriptions of average performance deviate from actual performance in one important respect: they fail to indicate the extent to which individual performance will vary from the average. These individual differences appear in all visual tasks, however they are measured. Peter Kaiser and Robert Boynton describe the situation this way: \"Comparisons between different observers, whether in the same or a different experiment, present a discouraging picture. Although observers agree on certain major trends, individual differences are best described as enormous.\"\nStandard psychometric methods disguise these typically \"enormous\" individual differences in perceptual thresholds of detection, matching, discrimination and resolution. These vary with the type of task used to measure visual acuity, on the specific way in which the visual stimulus is created and presented, and most importantly, on the perceptual and cognitive attributes of the observer, including past experience with the task it is possible to learn or practice your way to better visual acuity.\nTwo examples will illustrate the scale of the problems. On the subject of star color, the first diagram (below left) shows the location on a standard hue circle of the range (variation) in the single wavelengths chosen as a \"pure\" or best shade of red, yellow, green and blue light by subjects with normal color vision; the inset shows the number of individual subjects (circles) who chose a specific wavelength in the \"green\" matching task. On the subject of calculated telescope resolution criteria, the second diagram (below right) shows the variation in the judged brightness of wavelengths across the visible spectrum; the \"peak\" wavelength, which is used to define aperture resolution criteria, varies across a 40 nm range from about 530 to 570 nm.\nIn the color matching task, there seems to be good agreement among subjects in the locus of a \"pure\" yellow wavelength in fact, this constitutes the Nagal anomaloscope test for red/green color blindness. But in the green and blue color matching the performance can best be described as scattered: the green values chosen by different subjects range from a \"green blue\" below 500 nm to a \"green yellow\" near 560 nm.\nIn terms of photopic luminance, individual peak sensitivity spans a range of at least 40 nm (from 535 to 575 nm). The commonly used value of 550 nm is near the peak of the 1964 CIE V* photopic luminosity function (orange curve) or a similar function, which are actually not defined by tests of brightness matching but by a weighted average of the L and M cone response curves measured with color mixture matching.\nIf you are curious about your visual performance as a visual astronomer, it will be very helpful to discuss testing for color normal vision, resolution and contrast sensitivity with your ophthalmologist. It is easy to measure pupil aperture yourself, when your eye is fully dark adapted. This information will provide an empirical basis for your assessment of telescopic optical performance.\nIlluminance & Luminance\nFor the purposes of describing a light stimulus, the key distinctions are between illuminance and luminance.\nIlluminance (E) is the quantity of light incident on a unit area of surface or passing through a unit area of aperture, defined as:\nE = LI/d2\nwhere LI is the luminous intensity of the light (the quantity of light radiated into a solid angle of 1 steradian, in lumens) and d is the distance in from the light source. When distance is in meters and the unit area is a 1 meter square surface or 113 cm diameter circular aperture, illuminance is measured in lux.\nLuminance is the quantity of light emitted by a surface onto a surface, defined as:\nL = E/s\nwhere s is the solid angle of the light source (in steradians or square radians) as observed from the receiving surface or aperture. When both the light source surface and the receptor surface are standardized as 1 meter square, luminance is measured in candelas per square meter.\nIn optical systems, the objective focal length o and aperture area D2 and reciprocal relative aperture govern the relationship between light grasp and image luminance:\nLo = D2E/o2 = E/N2\nAs explained above, changes in relative aperture produce squared changes in image luminance.\nThe key distinctions between illuminance and luminance are:\nIlluminance is completely invisible to the eye; all light perception is a form of imaged luminance, perceived either as an emitting light source or a reflecting material. All brightness and lightness perceptions are luminance perceptions.\nIlluminance decreases as the light source is at a larger distance from the receiving surface. Luminance decreases as the same quantity of light is emitted by a physically larger source. Illuminance and luminance both decrease as the same amount of light is incident on a larger surface area.\nIlluminance provides no information about the size, distance or intensity of the light source (the same quantity of illuminance can come from a nearby dim light or a distant bright light). Luminance is a specific measure of the visual geometry of the illuminance from a light source in relation to a light receptor; it depends both on the angular area (surface area and distance) of the light source and on the area of the light receptor (e.g., the diameter of the pupil), but is invariant with distance because a light source that decreases in illuminance with distance decreases in the same inverse square proportion in angular area.\nIlluminance decreases with increasing distance between the light source and receiving surface. Luminance remains constant regardless of the distance between the emitting light and receptor surface the angular area of the source decreases with distance in the same inverse square proportion that the illuminance from the source decreases.\nThe power or light concentrating capability of an optical system is proportional to D2/2 = N2; a 2\" aperture astrograph operating at /4 delivers more concentrated light to a photoreceptor than an /10 instrument of 20\" aperture. Regardless of aperture, the luminance of an optical image is equal to the luminance of the source.\nIlluminance and luminance are measurement units in photometry, which is limited to electromagnetic radiation that produces a response in the eye, usually considered to be wavelengths between 750 to 380 nm. Irradiance and radiance are the equivalent measurement units in radiometry, which includes all electromagnetic energy from radio waves through xrays. Thus, a star that radiates very powerfully but almost entirely in either the infrared or ultraviolet will appear visually faint, because little of the energy from the star can stimulate the eye.\nVision can be characterized by three adaptation states, each associated with a range of environmental incident light (illuminance) levels:\nScotopic. Only the rods respond to light, generally at illuminance levels below 0.1 lux. Several visual criteria define this adaptation, chief among them is the loss of color sensation, although memory color may intrude to tint familiar objects near the scotopic threshold.\nPhotopic. The cones predominate in the response to light, which nominally occurs at illuminance levels above 10 lux or more. In fact, the rods are still fully functioning at illuminance levels even 10 times higher, up to light levels typical of noon sunlight. Photopic adaptation characterizes the state in which color perception can be entirely described in terms of the cone sensitivities alone, and any increase in illuminance will not improve visual acuity (resolution of small angular intervals).\nMesopic. The transition adaptation between scotopic and photopic vision. Color perception is present, but color saturation and contrast are muted, and hues are somewhat biased by the rods.\nLight adaptation is the response of the eye to increased luminance levels. It is generally prompt, occurring within a fraction of a second at the pupil and within less than a minute in the retina (via photopigment bleaching) and brain.\nDark adaptation is the response of the eye to decreased luminance levels. It occurs within 2 minutes or more, depending on the light exposure prior to darkness.\nThe astronomer is more interested in the dynamics of dark adaptation and the corresponding sensitivity of the eye to faint light in darkness. The common lore is that dark adaptation is best preserved by using a dim red light source in darkness, and this is borne out by dozens of research studies. There is no colored light source that is comparable to extreme red light, and most are equivalent to a white light. The main alternatives are red or white: white should be preferred only when it is necessary to perceive differences in color, for example in equipment electrical wiring or printed star charts.\nStudies of the time required to recover from exposure to red or white light consistently show an advantage for red light, which becomes disproportionately greater if the light exposure is brighter than about 65 lumens (the intensity of a desk lamp). All light sources induce a greater recovery time (return to dark adaptation) as they become brighter, so regardless of lighting choice the first principle is to work in as dim a light environment as practicable.\nIt is sometimes claimed that full dark adaptation (recovery of the maximum sensitivity to low light levels) requires hours, days or even weeks to occur. This is entirely false. The photopigment rhodopsin is regenerated in a light shielded eye at the rate of 0.25% per second of the residual (unregenerated) quantity of bleached photopigment. This means, if 100% of the photopigment is bleached by exposure to an extremely bright light, that it would take 77 minutes for 99.999% of the bleached photopigment to be regenerated. This is effectively complete darkness adaptation. Performance measurements of visual sensitivity or acuity (diagrams, above, from Luria & Kobus, 1984) clearly indicate that dark adaptation after exposure to a relatively dim light source (not brighter than a desk lamp) occurs within about 10 minutes for white light and 4 minutes for red.\nAgain, a dim light level is as critical as a red light environment. Hecht & Hsia (1945) found that adaptation from a white light environment took 15 minutes (!) longer than adaptation from a red light environment if both lights illuminated at 3500 lux, but the white adaptation took only 2 minutes longer if both lights were at 30 lux. Hulbert (1951) measured the difference to adapt from 1070 lux at 14 minutes, and from 11 lux at 5 minutes. As most commercial incandescent \"red\" light bulbs actually emit a significant amount of \"white\" (broadband) light, the importance of the dimmest practicable light levels is obvious.\nHowever, the astronomer does not reach the potential limit of dark adaptation, because the ambient \"darkness\" is typically much brighter. The physiological dark adapted threshold to light is around 0.000001 lux (reflected from a white surface), but the ambient illuminance from a \"dark site\" starry sky is about 0.001 lux and the light from a full moon is around 0.1 lux, five orders of magnitude greater than the absolute threshold. Suburban or periurban light pollution can also increase the sky brightness of a starry, moonless sky and raise the threshold that must be reached, reducing the recovery time needed to adapt to it.\nSome research reports disparage as insignificant the difference in time required to recover from white versus red light exposure. The criterion used for this judgment is usually the time required to adapt only once from a subdued red or white light environment to complete darkness. The astronomer, alternately working at the eyepiece and with charts, guides, computer displays and notetaking or drawing materials, may make the transition from an illuminated to a dark visual environment several dozen times in a single evening. If the difference in adaptation between white or red light regimes amounts to only two minutes, this would result in a cumulative difference in adaptation times between red and white lighting of a half hour to an hour or more. This repetitive adaptation means that the most desirable lighting regime for the visual astronomer is the dimmest practicable red light, obtained solely from LED light sources, sufficient to perform the necessary visual tasks.\nThe light grasp of the eye as a function of aperture is quite modest. At a dark adapted pupil diameter of about 6 mm, the pupil area allows only 3.5% the light grasp of a 150 mm (6\") telescope. However the eye is capable, under optimal conditions, of perceiving a light source emitting only a few photons per second. Thus, what it lacks in aperture it makes up in retinal sensitivity.\nThe minimum angular interval or linear dimension that can be resolved by a normal human eye under optimal viewing conditions varies with the type of resolution required.\nThe angular criterion is usually given as Rv = 60 arcseconds or 0.00029 radians for the resolution of two point light sources, and 120 arcseconds or 0.00058 radians for the resolution of parallel lines. A study by M.A. Danjon (1928) gave 74 arcseconds resolution for high (90%) contrast detail and 127 arcseconds for low (2.5%) contrast detail, which equals linear resolution criteria between 0.0897 to 0.1539 mm. The value 120 arcseconds seems to be commonly adopted, but resolution can clearly be better than that. My own resolution limit for the high contrast interference bands in a λ/D diffraction artifact is around 100 arcseconds.\nThe diagram (right) describes the eye's optical resolution in the abstract, as the spot diameter of a point light source on the retina as a function of pupil diameter, based on calculations with the Navarro ideal or mathematical \"eye\".\nThe Navarro eye allows the spot diameter to be separated into the contributions from the size of the diffraction artifact (the Airy disk, which gets smaller with larger pupil aperture) and from optical aberrations in the cornea and lens (geometric spreading, which increases with an eye pupil larger than ~3 mm). At the pupil sizes characteristic of most visual astronomy, the spot diameter in a normal eye is generally well above 25 μm (0.025 mm), which means the resolution of dim extended objects with an emmetropic, dark adapted eye (~6 mm pupil diameter) is roughly four times worse than the photopic resolution, in the range of 240 to 480 arcseconds (0.0012 to 0.0023 radians), and may be twice that when averted vision is used. (Note that a pupil diameter of around 3.5 mm would still apply to most lunar and some planetary observing in larger apertures, and that resolution values will generally be lower for older and visually impaired observers.)\nThe common method for estimating the eye's peak visual acuity is to calculate the average spacing between two cones in the fovea as the diameter of a single cone, and to assume that visual resolution is equal to this average spacing (the gap between two point stimuli is as wide as one cone). The average cone density is estimated to be around 190,000 per mm2 in the foveola (diameter on the retina of about 0.35 mm), and about 100,000 per mm2 in the fovea (diameter of about 1.85 mm). This works out to an average cone diameter of about 0.0025 mm in the foveola and 0.0034 mm in the fovea, given the characteristic hexagonal \"tiling\" of cone aperture.\nWith the eye's average internal focal length of 17 mm, these widths define an angular separation of between 30 to 41 arcseconds. However, the minimum spot diameter of the eye under optimal conditions (diagram, above) is about 7 μm or 0.007 mm, which is roughly the diameter of three cones. Thus the cone spacing method for predicting visual acuity overstates the eye's detection threshold under optimal conditions by at least two times and this is consistent with the measured performance acuity of the normal eye under bright light, which is between 1 and 2 arcminutes across the fovea. Thus, the limitation on the eye's visual acuity is primarily optical, not sensory, and optical performance strongly depends on the pupil aperture. Calculations based on retinal tiling are also imprecise because neural networks perform aliasing of the image that can actually exceed the theoretical resolution limit of the eye's optics.\nFinally, the task dependence of visual acuity is reflected in the different discrimination thresholds that characterize different monocular visual tasks:\nShape recognition - Black on white letter shapes can be resolved (e.g., rotational orientations of the shape \"E\" can be identified) when elements of the letter are at least 5 arcminutes wide.\nGrating resolution - Black on white line gratings (the lines and the spaces between them are of equal width) can be discriminated from a uniform gray background when the spacing between black lines is at least 2 arcminutes.\nPoint recognition - Two black points on a white background can be resolved when the space between them is at least 1 arcminute; white points on a black background can be discriminated at about 2 arcminutes (due to spreading of the image).\nVernier (Nonius) acuity - The misalignment between two black lines placed end to end or the vertical misalignment of two dots can be perceived when the lateral displacement is at least 10 arcseconds. This form of acuity is the principle behind the heliometer and the reason why it was the tool that first measured stellar parallax (Bessel and 61 Cygni).\nContrast or modulation range\nThe troland is a measure of retinal illuminance equal to the illumination from a surface emitting 1 lux per square meter into a pupil area of one square millimeter; it increases both with an increase in source brightness and an increase in pupil aperture. For comparison, 1000 trolands is approximately the brightness of a \"white\" paper viewed under bright indoor lighting, and 0.1 trolands is approximately the brightness of white paper viewed under moonlight.\nThis degradation of visual acuity with increasing pupil aperture is clearly indicated in the modulation transfer functions of normal eyes at various pupil apertures, measured by photographing the spot size actually imaged on the retina of subjects (diagram, right). For low contrast targets such as nebulae or faint planetary detail, the limit imposed by a large pupil\nField of View\nBecause the eye's normal point is the standard for visual magnification, calculation shows that the eye's true field of view is equal to its apparent field of view.\nAs a simple test of your true field of view: stand and look straight ahead with both eyes, then extend your arms on either side, fingers facing forward. Wiggle your fingers while moving both your arms forward and backward until you find the point where the movement of the fingers of both hands is just visible on both sides of your visual field. The angle between your arms will be about 120°.\nHowever, the fact that your fingers are barely visible at 120° means that your useable field is much smaller. How small? At the minimum, the fovea is only able to resolve the central ~1° of your visual field. Perceptual research also shows that viewers will say a single object fills their visual field when it subtends about a 20° visual angle a generalization first made by Leonardo da Vinci. For example, the industry recommended wide screen TV viewing distances produce a visual angle to the wide screen diagonal of between 20° to 40°, with the average around 25° an image width that is said to produce \"an immersive feel\". By that standard, the 40° apparent field of traditional eyepieces would be fully immersive.\nCurrently available commercial eyepieces offer apparent fields of view between 40° to 100°. The choice of one end of that range over the other seems to tip at an apparent field of around 60°, and can depend on several considerations: esthetic preference (the \"majesty factor\" as opposed to \"looking through a drinking straw\"), visual task (sweeping for comets as opposed to resolving double stars), the telescope mounting and balance sensitivity (super wide field eyepieces can be very heavy, especially at long eyepiece focal lengths; super wide field eyepieces allow extended \"drift\" viewing of objects with hand guided Dobsonian altazimuthal mountings), objective relative aperture (off axis eyepiece aberrations are more noticeable at smaller focal ratios) and price (super wide field eyepieces are generally much more expensive than traditional designs).\nOff axis image quality, in telescopes with focal ratios down to about /6, can be superior in some super wide angle eyepieces than in some traditional eyepieces, and image quality at the center of the field (on axis) is, for almost all oculars operating at all focal ratios, optically perfect. Only at objective focal ratios below /5 do optical considerations become important.\nOn the other hand, super wide field eyepieces require the observer to \"look around\" in the wide available field in order to see clearly, and this movement of the eye and head can cause vignetting or aberrations to appear. (Bias disclosure: I prefer eyepieces with apparent fields no greater than 70°, mainly to avoid these effects.)\nIn general, preference for wide or \"narrow\" apparent field eyepieces is not an issue of optical quality or the \"immersive\" visual area useful to the steady gaze of the human eye, but depends on the astronomer's personal preferences in visual esthetics, ergonomics and visual tasks, the convenience of use with a specific type of telescope ... and price.\nDiopters are used to measure the distance that a lens must be moved forward or backward along the optical axis to produce a change in the image focus equal to one diopter of the eye. This focus diopter is found as:\nThus the movement required to adjust the focus of a 20 mm eyepiece by one diopter is (202)/1000, or ±0.4 mm.\nFocus diopters may be positive or negative. At zero focus diopter, an eyepiece projects collimated light rays of light parallel to the optical axis, which can then focused by a relaxed normal eye as if the light came from a far distant source. Therefore the optimal focus diopter for a normal eye is zero or very slightly negative.\nAstronomical Optics, Part 1: Basic Optics - an overview of basic optics.\nAstronomical Optics, Part 2: Telescope & Eyepiece Combined - the design parameters of astronomical telescopes and eyepieces, separately and combined.\nAstronomical Optics, Part 4: Optical Aberrations - an in depth review of optical aberrations in astronomical optics.\nAstronomical Optics, Part 5: Eyepiece Designs - an illustrated overview of historically important eyepiece designs.\nAstronomical Optics, Part 6: Evaluating Eyepieces - methods to test eyepieces, and results from my collection.\nAmateur Astronomer's Handbook by J.B. Sidgwick - excellent basic chapters in optics, light gathering, resolution, magnification and more.\nTelescopic Limiting Magnitudes by Bradley Schaefer - an attempt to predict telescopic limit magnitudes using visual data, star color, age of observer, sky brightness and other factors.\nHuman Eye from Handbook of Optical Systems, Vol. 4: Survey of Optical Instruments by Herbert Gross, Fritz Blechinger & Bertram Achtner (eds.). (Berlin, DR: Wiley-VCH, 2008).\nSECTION 17. VISION from Bioastronautics Data Book NASA SP-3006 edited by Paul Webb. (Washington, DC: National Aeronautics & Space Administration, 1964).\nVisual Acuity - Summary of the various methods used to test the human visus.\nAverage optical performance of the human eye as a function of age in a normal population by A Guirao, C González, M Redondo, E Geraghty, S Norrby and P Artal. Investigative Ophthalmology & Visual Science Jan. 1999, pp. 203-213.\nThe N.A.A. Telescope Calculator - handy and accurate calculator page for most optical parameters of a telescope/eyepiece combination.\nEyepiece Focal Length Measurement - Jim Easterbrook explains how to measure eyepiece focal lengths in grating projections.\nThe Collimation - an excellent optical discussion by Thierry Legault\nNotes on LEDs - technical overview of the observatory light source most desirable for astronomers.\nThe Relative Effectiveness of Red and White Light for Subsequent Dark Adaptation (1984) - a useful literature review of the different effects of red and white lights on dark adaptation.\nWhat Is a MTF Curve? - Basics of the MTF.\nLast revised 12/05/15 ©2015 Bruce MacEvoy","domain":"optical_engineering"}
{"url":"https://hqlightroompresets.com/considering-between-35mm-and-50mm-fixed-lens/","date":"2018-02-21T03:19:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891813322.19/warc/CC-MAIN-20180221024420-20180221044420-00702.warc.gz","language_score":0.9293026328086853,"token_count":877,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__113822374","lang":"en","text":"The most popular fixed lens of course is a 50mm lens. The reason is because the focal point of the picture and have a 50mm normal perspective, just like the human eye could see.Therefore, fixed 50mm lens is so easy to find in the market also with a cheap price, both brands Canon, Nikon, Pentax and Sony.Along with the entry of the era of DSLR with APS-C sensor, which has a crop factor is 1.5 x 50mm fixed focal lens effectively becomes equivalent to 75mm so it was quite a bit telephoto. So it’s a DSLR manufacturers now make a 30mm fixed lens (Canon) or 35mm (Nikon) specifically for APS-C sensor, so it will provide an effective 50mm focal when multiplied by 1.5. Well, the question is then whether the lens is 50mm so it is not relevant to be selected by the APS-C DSLR owners?\nSo in the market today we can choose two long normal fixed lens with not much different, ie 35mm and 50mm. Both have large aperture, excellent sharpness, bokeh is good and the prices are cheap (for the f/1.8 version). So which one is better to choose? Options start from looking at the camera used, we assume you use a DSLR with APS-C sensor with a crop factor.\nThe answer if you really want 50mm photography, take a 35mm lens (or 30mm for Canon). 35mm focal actually still quite wideangle , but will be equivalent to 50mm when mounted on APS-C DSLR. With this lens, we still get the image area that is still quite wide without any significant distortion. This means that this lens is more flexible for use in tight spaces or streets. Disadvantages of this lens is that just because the focal 35mm, when used to create a portrait of the face in close-up (face and shoulders) then we need to be fairly close to the object to be photographed. Another downside the bokeh still less blur (for the 35mm f/1.8 lens).\nBut if you do like the photo portrait close-up , 50mm lens is better to choose from. The reason, with the focal 50mm and APS-C sensor, the effective focal 75-80mm would be a more telephoto. Having a 50mm f/1.8 lens is sufficient for you to start a hobby stock photo model, for example. 50mm f/1.8 lens is also very cheap. Example for Canon EF lenses only $80, Nikon only $100 (AF version) and $190 (AF-S version). Bokeh produced from this lens is very nice, not too lose with expensive lenses like 50mm f/1.4 for example. Disadvantages of this lens is less effective for use in the narrow room, where we can not back again to find the desired composition. Moreover, because the Canon or Nikon do not have a stabilizer in the body, then we need a lens with a stabilizer, especially above the lens with 50mm focal. But Canon and Nikon apparently decided to not provide the features stabilizer (IS / VR) on their 50mm lenses, either the f/1.4 or f/1.8. Thus when using a 50mm lens, avoid using slow shutter speed (under 1 / 60 sec) so that the risk of image blur due to hand shake when shooting can be avoided.\nSpecial note Nikon AF-S DX 35mm f/1.8 and 50mm f/1.8 AF-S there are some technical differences:\nAF-S 35mm f/1.8 :\n- DX lenses, can not for full frame DSLR\n- small size, filter diameter 52mm\n- without window distance scale\n- The smallest aperture f/22\nAF-S 50mm f/1.8 :\n- FX lenses can be used for full frame and DX DSLR\n- size is rather large (greater than 50mm f/1.8D older)\n- diameter filter 58mm\n- have a window distance scale\n- There weather seal near the mount\n- The smallest aperture f/16","domain":"optical_engineering"}
{"url":"https://help.zeelool.com/hc/en-us/articles/360032766052-How-to-choose-the-lenses-thickness-What-is-the-relationship-between-lenses-thickness-and-the-refractive-index-","date":"2023-09-29T10:14:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510501.83/warc/CC-MAIN-20230929090526-20230929120526-00511.warc.gz","language_score":0.898819088935852,"token_count":101,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__146696092","lang":"en","text":"How to choose the lenses thickness? What is the relationship between lenses thickness and the refractive index? Stefan November 27, 2019 14:58 Updated Follow The higher the refractive index, the thinner the lens, the more the light transmittance. Related articles How do I get thinner lenses? What do the Lens Index numbers mean? Frame Size and Strong Rx What is the material of your lens? Difference between Spherical Lens and Aspherical Lens Comments 0 comments Please sign in to leave a comment.","domain":"optical_engineering"}
{"url":"https://www.wildardnamurchan.com/wildlife-kit/binoculars","date":"2024-04-22T06:19:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818081.81/warc/CC-MAIN-20240422051258-20240422081258-00035.warc.gz","language_score":0.9300830364227295,"token_count":1041,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__17333870","lang":"en","text":"One of the most useful and valuable items for a wildlife trip in the Highlands of Scotland is a pair of quality binoculars. A good pair of binocular can last a lifetime and provide you will endless hours of wildlife watching pleasure, whether you are in a wildlife hide or out in the field. There are many brands on the market and binoculars come in a range of sizes, magnification, quality and price ranges. Features of value for the wildlife watcher include good optics, a wide field of view (e.g. 42), an appropriate magnification (x8 or x10), ease of focussing and weather-resistance. It is well worth spending some time to select a pair of binoculars suitable to your needs, experience, anticipated use and budget.\nIf you are interested in purchasing a pair of binoculars for the first time or upgrading from your current pair, you might like to consider the following options. However, please note that these are just a few of the many options available and are based on our personal experience.\nThe binoculars featured here are available to purchase on Amazon. It is important to choose a pair that is right for you and should take time to check out the details of the featured binoculars and the reviews. You can also take advantage of the Amazon shopping basket to monitor any changes in the price and availability.\nThe Swarovski EL Range\nFor the keen wildlife watcher who is looking to invest in the best, you would do well to consider a pair of Swarovski binoculars. Swarovski binoculars are much more expensive than the Hawke optical range, but offer a range of features that result in an excellent viewing experience. I have two pairs of Swarovski binoculars, the EL 10 x 32 and the smaller, lightweight CL Pocket 8 x 25, both of which I consider excellent pair binoculars and suited to different purposes.\nThe Swarovski EL 10x32 offers exceptional optics which make them an excellent choice if you are a keen birdwatcher or wildlife spotter The magnesium alloy housing with its rubber armour coating and duel anchor points is robust with a secure grip. As you would expect, the binoculars are waterproof and fog proof, and the twist up helicoid eyecups are a particularly useful feature for spectacle wearers.\nThe centrally located focus wheel offers a good focussing range, which is a real asset, allowing you to focus close up when observing woodland birds in the RSPB reserve at Glenborrodale, but ready to offer long distance viewing for that soaring eagle in the hills above. A great feature for the wildlife enthusiastic whose interest range from dragonfly stalking to wader watching.\nHowever, as noted above, it is the quality of the optics which makes this pair of binoculars outstanding. Features include field flattener lens, high density, fluoride ED glass and patented multi-layered anti-reflective and highly reflective prism coatings; features all designed to maximise the image quality in a range of light conditions. The performance of the Swarovski EL 10x32 binoculars are impressive both in bright conditions as well as the low light conditions of dawn and dusk or on a dreich- filled day in the Highlands.\nThe Swarovski EL 10x32 comes with soft padded carry case, objective lens covers, rain guard and snap shot adaptor. The binoculars come in two colours- sand brown and dark green.\nProduct Links and Further Information\nOther models worth considering\nSwarovski CL Pocket 8x25 Binoculars\nThe Swarovski CL Pocket 8X25 Binoculars are a great pair of compact binoculars which offer the high quality optics of Swarovski, with a very good image quality in bright conditions and a reasonable field of view, yet are smaller enough to fit into your coat pocket. An excellent choice for those who to wish to travel light but always have a good pair of compact binoculars ready to hand.\nProduct Links and Further Information\nOther compact models worth considering\nThe Hawke Endurance ED Range\nHawke have a really good reputation for the quality of their optics offered at a reasonable price. The Hawke Endurance range are mid size binoculars with three models, 8 x 32, 8 x 42 and 10 x 42, differing in size, magnification and field of view.\nThe binoculars are waterproof and fog proof with a shock proof rubber-coated magnesium housing which gives a good grip; ideal features for the West Highland terrain and climate. All three models have a centrally placed focus wheel, twist eye cups, stay-on lens covers and rain guard. The multiple coated ED glass lenses offer sharp, clear images with a good level of contrast and brightness, with a very good image quality in bright light.\nThe binoculars come in classic black or green with a black storage case and are well worth checking out if you are looking for a good quality, budget option. Other binoculars worth considering in the Hawke Range include The Hawke Frontier.","domain":"optical_engineering"}
{"url":"https://firstcastreviews.com/nines-optics-st-johns-amber-green-mirror-glass-sunglasses-review/","date":"2021-02-27T21:05:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178359497.20/warc/CC-MAIN-20210227204637-20210227234637-00445.warc.gz","language_score":0.951122522354126,"token_count":1979,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__134715548","lang":"en","text":"Nines Optics has quickly become an optic force to be reckoned with. In an industry with giants like Costa Del Mar, Oakley, Wiley X and more, how does a company set themselves apart from these aforementioned giants? Through the integration of improved technology into their products. If you are in the market for a new pair of shades at a reasonable cost, look no further than Nines Optics; in our case, the St. Johns with the glass amber, green mirror lens’.\nTable of Contents\n- What makes Nines Optics Different?\n- What Options are Available?\n- What is included?\n- What We Liked About Them\n- Suggested Improvements\n- Closing Remarks\nWith the sport of bass fishing being around for over 50 years, we as anglers have been able to see some of the negative side effects (that come with time), from the obsession that drives us. Skin cancer comes to mind especially with all of the great UV protection apparel that is available to keep us cool, “cool” and covered. Equally as important are the effects the sun rays have on our eyes, and though we may not see it, the damages could keep us from seeing anything at all. That’s why we picked up a new pair of shades and chose the Nines Optics St. Johns.\nBefore going into the sunglasses, let’s have a quick science lesson. The sun’s rays can be broken down into three types, Infrared (IR), Visible light, and Ultraviotlet (UV). IR rays are lower energy, UV are higher and the visible light is in the middle. When on the water, we are exposed primarily to visible light and UV, both of which can be damaging to the eye. Most of us wear sunglasses on the water, but are yours really protecting your eyes from the harmful effects of sun?\nWhat makes Nines Optics Different?\nEach pair of Nines comes with 9 layers of protection. Yes 9, that’s not a typo, 9. Let’s go a little deeper into each of the layers and how they protect your eyes from burning out of your skull.\nThe first is the Nirtech® NIR Heatshield. NIR stands for Near-Infrared, and prolonged exposure to this specifically can be extremely damaging to the eye. What makes it even more damaging is unlike skin that would burn under IR light (sunburn), your eyes cannot detect it, meaning you could be hurting your eyes, and not even know it. The IR energy actually raises the internal temperature of the eye, essentially cooking it. Think I’m kidding? They use IR technology in BBQ grills that’ll cook a 32oz Porterhouse in the blink of an eye. NIR blocking technology is not exclusive to Nines, however, they have found a way to preserve clarity while not sacrificing protection, which is exclusive to the brand.\nThe second layer is the Blue Light Shield. This blocks out harmful light within the visible light spectrum specifically blue light. Blue light is harmful to parts on the backside of your eye like the retina and your optic nerve. To protect the front of your eye, the third layer is 100% UVA+UVB blocking. These are both types of UV light that we know are quite harmful and Nines has us covered to protect the lens, iris and cornea.\nThe fourth layer covers the polarization/anti-glare properties of the lenses. Polarization is key, especially when fish are bedding to reduce the glare put off by the sun’s reflection on the water. Glare is also extremely fatiguing on the eyes. Think about a sunny day of fishing, when you forgot your sunglasses or maybe they blew off when you were hauling down the lake to your next spot, either way, your eyes hurt at the end of the day from squinting right? Another reason why we wear polarized glasses and Nines has some of the clearest and best lenses I’ve looked through to cut out glare.\nLayer five is the anti-reflective coating. You may be thinking, “wait, how is anti-reflective different from anti-glare?” Well, lets just look at it, shall we? Sunlight not only reaches your eye through the front of the lens but rather from all sides including the backside of the lens. The Anti-Reflective (AR) coating virtually eliminates reflections from both the front and the back of the lens, drastically decreasing eye strain and fatigue of the eye.\nNow layers six and seven are fairly similar so I will mention them together. The two layers are hydrophobic (water repelling) and oleophobic (oil repelling). The hydrophobic coating protects from water and even sweat. When water hits the lens it will adhere through surface tension as a droplet, however, with a hydrophobic coating, the droplet will have a tendency to roll off the lens rather than adhere. This is a huge benefit on the water for a day where you may have a quick shower pass through and then the sun comes out and your glasses are covered in water spots; but not with the hydrophobic coating. The oleophbic coating on the other hand protects the lenses against oils i.e. fingerprints or smudges. This is not to say that fingerprints or smudges won’t end up on your lenses, however, it does mean that they will easily wipe off with a cleaning cloth due to the oleophbic properties incorporated in the lens.\nThe last two layers include a multilayer mirror which reflects the visible light spectrum, and a two-times hardness coating for increased impact resistance. This is not to say the lens could not crack because it is glass, but it will help.\nAs much most of the technology of the glasses is in the lenses, that is not to say that there isn’t any worth noting in the frames. First to mention is the frames compository material that is a TR-90 nylon. This material is ideal as it is light-weight, flexible and extremely durable. The frames mold comfortably to your head shape and with the additional ear and nose padding on the inner portion of the frames, you don’t even notice them after wearing them on the water all day. Additionally, the padding is non-slip which makes the glasses feel as if they are attached to your head, rather than just wrapped around it making you feel more like Cyclops from the X-Men than you may care to admit. Last to note is the anti-corrosive hinges perfect for both freshwater and salt applications making these glasses versatile to any angler, fishing anywhere across the globe.\nWhat options are available?\nThe glasses we picked up were the St. Johns frames with the amber lens with green mirror lens as we found that’s what best suits us, however, they offer 12 different frame styles (all named after major lakes), and 6 different lens options including either polarized poly-carbonate or high performance glass. The lens colors, light transmission, IR radiation and HEV (High energy visible) radiation blocking numbers can be seen below.\nWhat is included?\nSo regardless of your fishing circumstances, Nines has you covered. Included with each pair of Nines is a micro-fiber carrying pouch which also doubles as a cleaning cloth, a hard case to protect your glasses while not in use and a floating retainer for people that lose their glasses…like us so that they can’t sink down to Davey Jones locker.\nWhat We Liked About Them\nOverall, the Nines have met and or exceeded all the expectations you can have in a pair of glasses while fishing and putting in long hours on the water. They protect your eyes from harmful UVA+UVB, NIR, and HEV rays, decreasing your chances of eye issues down the road. They are strong, light, flexible and comfortable to wear even when on the water for 12+hrs straight. When practicing for a big derby and putting in long hours, the last thing you want to experience is fatigue on the old noggin from your glasses fitting uncomfortably. The non-slip pads along the temple and nose also make the glasses feel secure on the head and the shape of the St. Johns frames also limit the amount of light getting in from the sides or top of the glasses which was also appreciated. Lastly, the glasses have a lifetime warranty from any manufacturer defect! How can you beat that?\nOne suggestion we would give as an improvement to Nines overall would be to keep the same 12 frames and 6 lens options, but instead of only having certain lenses available in certain frames, allow the customer online the option to make their own so to speak. Two drop down menus where the customer could choose their preferred frame and another for the lens that they would like. Obviously for retail sales, this would not be possible, but just continue keeping popular styles in retail. Another suggestion to Nines is to make sure they’re product photos match up to the product. Though a minor detail, the stock photo shows the Nines logo on the frame as green along with the temple rubber pads on the inside of the frames when the actual product’s are gray.\nThe Nines retail between $89 for polycarbonate polarized lenses and $159 for high performance polarized glass. If you are in the market for a new pair of glasses and looking at some budget options, give the Nines a look, you won’t be disappointed.","domain":"optical_engineering"}
{"url":"https://tudoholic.com/products/hd-military-monocular-12x50-powerful-telescope","date":"2023-09-24T03:35:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233506559.11/warc/CC-MAIN-20230924023050-20230924053050-00750.warc.gz","language_score":0.7955928444862366,"token_count":225,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__116046296","lang":"en","text":"HD Military Monocular 12x50 Powerful Telescope\nZoom in and go beyond your natural eyesight. The brand new HD Military Monocular 12x50 Powerful Telescope will give you the power to extend your vision. With a 12x50 zoom capability, you'll be able to pinpoint from a further distance. For an extra $6 you can add cell phone accessories to your order. These accessories allow you to mount your monocular to the cell phone and extend the vision of the camera. Order yours today!\n- FMC Multi-Coated\n- BAK4L Prism\n- Optical Lens\n- 50MM Diameter Objective Lens\n- Transparent And Bright\n- 20MM Ocular Clear And Bright Comfortable View\n- Size: 6.7 \" x 2.7\" x 3.7\"\nCell Phone Attachment Accessories:\n- One (1) Tripod\n- One (1) Cell Phone Mount\nWe Also Recommend\nPOLO summer lapel ice silk half-sleeved T-shirt\nWaffle trousers sports casual tide brand fashion legged trousers men","domain":"optical_engineering"}
{"url":"http://www.atgdatanet.co.uk/services/point-to-point-protocol","date":"2023-12-10T11:28:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679101779.95/warc/CC-MAIN-20231210092457-20231210122457-00619.warc.gz","language_score":0.9254179000854492,"token_count":214,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__271992817","lang":"en","text":"We can supply and fit Point-to-Point, Line of Site communication data systems from radio wave frequency (RF) and physical laser link technology. Laser Links can perform between 1.5 Mbps to 10 Gigabit speeds.\nLaser Link or FSO (Free-Space Optics) also known as Wireless Optics or Optical Wireless, is an optical data, voice and video transmission link system. Like fibre optic cable, wireless optics communication systems use laser light to transmit a digital signal between two transceivers. However, unlike fibre, the laser link is transmitted through the air LOS (Line of Sight) instead of through a glass fibre strand. In order for the digital signal to be transmitted and received, there must be clear uninterrupted air space LOS between each wireless optics unit. In other words, there should be no obstructions such as trees or buildings between the transceivers.\nRadio Frequency data link (RF) also know, as microwave and wireless link is effectively the same as a laser link, providing a less critical LOS data communications.","domain":"optical_engineering"}
{"url":"http://www.24bikes.es/a283/amscope-t490b-compound-trinocular_471628.html","date":"2021-12-05T15:34:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363189.92/warc/CC-MAIN-20211205130619-20211205160619-00190.warc.gz","language_score":0.8075505495071411,"token_count":1326,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__178338148","lang":"en","text":"40X-2000X LED Trinocular Biological Compound Microscope\nSimul-focal trinocular head boasts unique features; Adjustable 23mm photo port and C-mount adapter included; 3D two-layer mechanical stage with coaxial coarse and fine focusing and iris Abbe condenser; Sturdy all-metal frame with LED illumination; This instrument operates on sp.info AmScope® – AmScope MicroscopeAmScope T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light 40X-2000X eight widefield magnification settings Simul-focal trinocular head boasting unique featuressp.info 40X-2000X Trinocular Compound Darkfield Microscope with T490B's adjustable trinocular port creates a parfocal optical system by allowing the image system attached to the photo port and the image in the eyepieces to be in focus at the same time. Traditional microscopes on the market allow you to see through either the trinocular port or eyepieces, forcing you to switch between the port and eyepieces.sp.info AmScope T490B-DK Compound Trinocular Microscope, Jun 07, 2021 · The AmScope T490B-DK compound trinocular microscope has a sliding head, interchangeable pairs of 10x widefield and 20x widefield eyepieces, a forward-facing nosepiece with four DIN achromatic objectives, Brightfield and Darkfield halogen illumination, and a double-layer mechanical stage with a stage stop to protect slides and objectives from damage The trinocular viewing head\n40X-2000X Laboratory Clinic Veterinary Trinocular\nThe T490B includes a 30-degree inclined 360-degree swiveling, compensation-free trinocular head, a 3D mechanical stage, and an intensity-variable halogen illumination system. The 10MP digital camera captures still images and video, and allows you to view a live stream on your PC.sp.info AmScope 40X-2000X Trinocular Compound Darkfield This item:AmScope 40X-2000X Trinocular Compound Darkfield Microscope. $667.99. In stock. Ships from and sold by AmScope Australia. $205.55 delivery. AmScope BS-50P-100S-22 Pre-Cleaned Blank Ground Edge Glass Microscope Slides and 100pc Pre-Cleaned Square Glass Cover Slips sp.info [Amscope T490B] Microscope Trinocular CompoundBrand ( AMSCOPE ), model ( T490B ), MPN ( T490B ) Review (mpn:T490B for sale) T490B Microscope Trinocular Compound AMSCOPE. In addition, the T490B 's industry standard 23mm photo port can be converted into A/C mount port by attaching the included c mount adapter, allowing you to attach most microscope digital cameras and video systems on the market.sp.info 40X-2000X Trinocular Compound Darkfield - AmScope UKPacking List:One Trinocular Compensation-Free Head. One 23mm Adjustable Photo Port with C-Mount Adapter. One Microscope Body with Frame, Base and Halogen Illumination System. Four High Quality DIN Objectives, 4X, 10X, 40X and 100X. Two Pairs of Widefield Eyepieces, WF10X and WF20X. One Oil Darkfield Condenser. Three Color Filters.\n40X-2000X Trinocular Compound Darkfield Microscope\nT490B's adjustable trinocular port creates a parfocal optical system by allowing the image system attached to the photo port and the image in the eyepieces to be in focus at the same time. Traditional microscopes on the market allow you to see through either the trinocular port or eyepieces, forcing you to switch between the port and eyepieces.sp.info Compound Microscope Trinocular Microscopes for sale AmScope T490B-DK Compound Trinocular Microscope. $449.99 New. $415.00 Used. AmScope 40x-2500x Plan Infinity Kohler Laboratory Trinocular Compound Microscope. $864.99 New. AmScope T390C Doctor Veterinary Clinic Trinocular Biological Compound Microscope 40 X 2500x. $328.99 New. AmScope T720 Microscope.sp.info * AmScope T490B DK Compound Trinocular Microscope, We suggest that we have image of this AmScope T490B DK Compound Trinocular Microscope, WF10x and WF20x Eyepieces and a list of online stores that have been popular with buyers. Which is easy, safe and fast, with high reliability. The store will have the following information. Such details, features, price best, delivery 1-2 days, Shipping, promotion, and saler.sp.info AmScope 40X-2000X Trinocular Compound Darkfield The T490B also includes a 30° inclined 360° swiveling compensation-free trinocular head, a 3-D mechanical stage, and an intensity-variable halogen illumination system. It arrvies brand new in a factory sealed box. Its retail value is $1900. Where to buy AmScope 40X-2000X Trinocular Compound Darkfield Microscope?\nAmScope 子供用楽器 Digital Compound 40X-2000X 知育楽器\nTranslate this pageホーム > 知育玩具-おもちゃ- > 知育楽器一般 おもちゃの楽器 子供用楽器 AmScope T490B-P Digital Compound Trinocular Microscope, WF10x and WF20x Eyepieces, 40X-2000X Magnification, 韓国商品（文具・雑貨）ならお任せ下さい！他にはない品揃え！sp.info","domain":"optical_engineering"}
{"url":"https://www.coptrz.com/blog/power-thermal-imaging-drones/","date":"2018-01-20T23:01:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889736.54/warc/CC-MAIN-20180120221621-20180121001621-00209.warc.gz","language_score":0.9330519437789917,"token_count":887,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__149270071","lang":"en","text":"Thermal imaging has come a long way in recent years, from vague pixellated pictures to highly detailed images looking more like a photo negative than a bunch of heatspot blotches. Drones are one of the key advances in thermal imaging technology, taking cameras to places they’ve never seen before!\nSo why are unmanned aerial vehicles (UAVs) becoming such a cornerstone of thermal imaging projects? Let’s take a look at some of the uses of thermal imaging across industries, and how drones are changing the use of this cool technology.\nThermal Imaging For Search And Rescue\nIt might be one of the more obvious categories for thermal imaging, however in the past thermal imaging cameras were either strapped to a helicopter or hand-held by people on the ground. There are two clear problems here: helicopters cannot see under canopies such as forests, and people travel at a limited range of speed.\nBonus: View the Zenmuse XT Tutorial Video here (in videos tab)\nA drone covers both of these problems! It can fly under canopies, into buildings, essentially anywhere it may be required. Advanced cameras such as the Zenmuse XT series by DJI make detection of missing people even easier, as temperature alerts can be activated – meaning as soon as body heat is detected, for example, you’re going to know about it.\nFirefighting With Thermal Imaging\nYou might think that fighting fires with a camera designed to spot heat is a bit nonsensical – but wait! In actual fact, firefighters the world over are starting to use drones as a key tool in battling blazes. This is because the advanced cameras like the Zenmuse XT can help detect key hot spots in a fire. What this means is that teams on the ground who are working out the best approach to a blaze can identify potential problem areas, avoiding sending their firefighters into overly dangerous places.\nIn addition, a drone can provide immensely helpful feedback post-incident, determining areas of safe heat levels, as well as hidden hotspots (fire in the walls). It can even help determine the cause contributors to the fire, for example identifying areas which may have included accelerants.\nFlare Stack Inspections\nPlants and offshore rigs will often have a combustion system called a flare stack – which looks like this:\nThese need regular close inspection to ensure the stack remains safe while in operation, and that any essential maintenance and repairs are carried out in a timely manner. However, it can be super costly to shut down a flare stack to inspect it – and that’s where drones with thermal imaging cameras come in!\nA drone can fly very close to a flare stack even while it’s in use, and the thermal imaging technology can help identify problems with the operation – such as detecting cracks in the structure. This saves so much money, as the flare stack can be inspected without needing to shut it down, and the problem areas can be identified immediately – so engineers know the exact spot to locate and fix without a lengthy in-person stack inspection.\nThe final one for today: precision agriculture. What this means is using huge (and we mean HUGE) data sets captured by surveys – usually by drone – and using this information to create smarter crop rotations, improve crop yield by spot-treatments, and manage land more effectively.\nThermal imaging is ideal for precision agriculture as the temperature differences across a field site could affect which crops are planted where. You may have some land which is always shaded in one corner yet always has full sunshine in the other – this is where thermal imaging could determine ideal crop placement even within the same field.\nThermal Imaging Cameras For Drones\nThere are many different types of thermal imaging cameras for the Inspire drone: the lower-spec ones will do the same job but yield less data to analyse, while the top-end cameras will log everything. There is also the Micasense Rededge and Parrot Sequoia for other drones. The Zenmuse XT camera series is the thermal imaging camera of choice for the COPTRZ team because it makes the DJI Inspire 1 or Matrice 600 very versatile with payload options.\nIf you’re interested in discussing thermal imaging for your company, call us on +44 (0) 1709 599458 for details.","domain":"optical_engineering"}
{"url":"https://www.todayinnewyork.com/2019/12/10/toray-introduces-raytela-polymer-optical-fiber-for-minimally-invasive-surgery-able-to-negotiate-9mm-radius-bends/","date":"2020-09-28T21:25:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401614309.85/warc/CC-MAIN-20200928202758-20200928232758-00623.warc.gz","language_score":0.9061651229858398,"token_count":396,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__275942819","lang":"en","text":"Toray's Raytela® is flexible and can negotiate 9mm radius bends. Raytela® is a high efficient transmitter of high intensity light for endoscopy devices and more.\nNEW YORK CITY, NY, USA, December 10, 2019 /EINPresswire.com/ — Toray, Industries Inc., announces RAYTELA® Polymer Optical Fiber for minimally invasive surgery. Endoscopy, ureteroscopy, ophthalmic surgery and other procedures require devices that are smaller and can navigate more tortuous paths than ever before. Toray has met the increasingly demanding needs for high quality imaging in the minimally invasive surgical market with the Raytela® fiber optic cable.\nToray's Raytela® is a very flexible and highly efficient transmitter of high intensity light. Its greater light efficiency transmission means that it requires less intensity at the light source. An additional special characteristic is the significantly wider degree of light broadcasting at the distal end. This combination of special capabilities results in significantly smaller diameter devices that require fewer light cables.\nNew devices are being developed to diagnose new disease indications. Many of these devices are required to negotiate significantly more tortuous paths than previously capable. In addition to the smaller diameter, the Raytela® optical fiber can negotiate tight 9mm radius bends and bend back upon itself 180° with no diminution in light intensity. As compared to glass fibers used in many devices, Raytela® has more resistance to fracture and longer life.\nAvailable in 4 diameters from 250 µm to 1000 µm, Raytela® is the new standard in optical fibers for medical device illumination.\nAnderson Madison Advertising\nemail us here\nSource: EIN Presswire","domain":"optical_engineering"}
{"url":"https://cescomplete.com/2018/07/11/what-is-field-of-view-for-cctv-mean/","date":"2024-02-25T14:40:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474617.27/warc/CC-MAIN-20240225135334-20240225165334-00569.warc.gz","language_score":0.948644757270813,"token_count":448,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__4655533","lang":"en","text":"Field of view for CCTV cameras references the range of vision you’ll have on the camera. It’s very important when selecting a CCTV camera. Field of view for CCTV cameras impacts how much of an area you can see, and in how much detail.\nThink of it this way. Place your hands in front of you, palm facing palm, about a foot apart from each other. Everything you can see between your hands is your field of view. Maintaining their distance from each other (a foot apart), bring your hands to the sides of your head. You should have a hand beside each of your eyes. You can see pretty much everything you’d normally see in your vision.\nNow bring your hands forward. They should still be a foot apart, one palm to the other. What you see between your palms is narrower. The distance between your palms hasn’t changed. You’re staring down a longer focal length. More of your vision is outside that foot of space between your palms.\nNow extend your arms all the way. The amount of your vision that exists between each palm will be even lesser.\nIn the same way, a shorter focal length on a camera will allow you to see a broader range. For instance, a 10 mm focal length allows you to see most of a parking lot. This is useful to catch a great deal of action on one camera.\nExtend that to a 50 mm focal length, and you won’t see the entire parking lot any more. You may capture one or two cars. This gives you less breadth of vision, but greater specificity. The detail will be considerably increased.\nMake sure that you take field of view into account when selecting a CCTV camera. With greater resolution cameras like today’s 4k models, you can implement broad field of view while maintaining great ability to enhance detail. At the same time, maybe it’s more practical (and less expensive) to get two cameras with slightly lesser resolution, but a longer lens. You’d have to overlap their coverage, but you can maintain a similar ability to capture detail. The choice is different depending on precise circumstances or needs.","domain":"optical_engineering"}
{"url":"https://www.qualityinstruments.com.mx/q-sun-xenon-arc-test-chambers","date":"2022-05-23T14:33:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662558030.43/warc/CC-MAIN-20220523132100-20220523162100-00430.warc.gz","language_score":0.88152015209198,"token_count":248,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__6986021","lang":"en","text":"Q-SUN Xenon arc test chambers\nThe Q-Sun xenon arc light test chamber, reproduces the internal and external harmful light. Xenon lamps emit ultraviolet light, visible and infrared.\nThe filtered xenon arc light lamps are the best way to perform tests to products such as pigments, colorants and dyes that can be sensitive to longer wavelengths of ultraviolet light and to the visible wavelengths of sunlight.\nEasy to use\nQ-Sun chamber is designed to be used intuitively. Easy to install, use and calibrate. Specimen mounting and evaluations are fast with the unique slide-out specimen tray that can easily fit tridimensional pieces. Lamp replacement is safe, easy and quick to execute. Light fastness chamber B02 of Q-Sun.\nFlat and rotating supports Models\nThe Q-Sun chamber models vary from the benchtop basic level up to the flat and autonomous rotating supports models with all the features. The flat chambers, such as Xe-1 and Xe-3 of Q-Sun, can fit tridimensional specimens or several flat samples. The new B02 chamber is a light fastness chamber designed with a rotating support.","domain":"optical_engineering"}
{"url":"http://www.specialtyarch.com/","date":"2014-10-25T06:58:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1414119647865.10/warc/CC-MAIN-20141024030047-00303-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.8316299915313721,"token_count":523,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__146858913","lang":"en","text":"Specialty Archery is a proud sponsor of Spiritual Outdoor Adventures with Jimmy Sites. See our ad for verifiers on Spiritual Outdoor Adventures. Air dates Tuesdays 1:30 a.m. (ET), Wednesdays 8:00 p.m. (ET), Sundays 6:30 a.m. (ET) on Pursuit Network (Dish channel 393 and Direct TV channel 604). The Verifier brings archery back to life for [...]\nEasily mounts to standard 1 5/8” x 1 5/8” Unistrut (Unistrut not included). Can serve bowstring up to 600 RPM. Lays down a perfect serving every time. Twists bowstrings evenly from both ends to ensure an even twist rate throughout the bowstring. Uses air cylinder to ensure bowstring stays at a constant tension when serving [...]\nGreat addition to the Super Server 600 (#SS-600) serving machine. Uses air cylinder to ensure bowstring is stretched at a constant tension. Can tension strings up to 425# when using a 150 psi air compressor. (Air compressor not included). Can connect multiple Quick Stretch 350 string stretching machines with the use of the manifold kit [...]\nUpgrade your single vision lens to the True Spot Double Vision Lens System! The new Double Vision lens kit offers more versatility and customization than our original True Spot lens. Pairing two lenses together allows for any center spot power to be coupled with any other outside power. Double Vision lens kit is compatible with [...]\nThe Pro Series Double Vision ring allows the archer to use their Specialty Archery Pro Series scope (#040-3) with True Spot Target Double Vision Lenses. Uses your existing Specialty Archery positive power lens (1.345”) in conjunction with the True Spot Target size Double Vision Lens (1.108”).\nSpecialty Archery’s redesigned Glow Ring (GR) now has easily replaceable fiber, and an easily replaceable Glow Pin (GP), allowing the archer to customize both fiber color and pin diameter. Redesigned Glow Pin protects fiber from damage in the field. Fiber colors are easily interchangeable without the use of tools. Clear fiber shroud allows maximum light [...]\nExtra Glow Fiber (GF) also available. Glow fiber comes in 3-pack of 8” pieces of: 1 red, 1 green and 1 blue fiber, in .010”, .020”, or .030” diameter. Also includes clear fiber shroud. Can be purchased in the Glow Rings Section for the Scope you have.","domain":"optical_engineering"}
{"url":"https://academy.heidelbergengineering.com/mod/page/view.php?id=1372&he_channel=business-lounge&he_country=MX&he_language=en","date":"2019-12-13T21:33:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540569146.17/warc/CC-MAIN-20191213202639-20191213230639-00467.warc.gz","language_score":0.82780522108078,"token_count":123,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__69735039","lang":"en","text":"National and International Symposia\nLast modified: Monday, 29 April 2019, 3:40 PM\nInternational SPECTRALIS Symposium\nEvery year, the Heidelberg Engineering Academy invites high-profile speakers from around the world to exchange ideas in fascinating locations in Europe, the USA or Asia. Experience scientific lectures at the highest level.\nThe focus is traditionally on sharing knowledge about the applications of the entire SPECTRALIS imaging platform. In interesting lectures and discussions, learn about the latest insights in retina and glaucoma diagnosis using OCT, fundus and widefield imaging and angiography.","domain":"optical_engineering"}
{"url":"https://investerarpengarhacc.web.app/54374/98956.html","date":"2023-02-09T03:46:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501066.53/warc/CC-MAIN-20230209014102-20230209044102-00791.warc.gz","language_score":0.7258118391036987,"token_count":1324,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__277888397","lang":"en","text":"Kvantitativa vätskefasmätningar i rötningsprocessen - CORE\nSe hela listan på innovatechlabs.com 2016-03-13 · Infrared Spectroscopy (FTIR) measurements of four polymers assigned to unknown spectra, examine how different bonds and functional groups give rise to different FTIR signatures and estimate % crystallinity in LDPE and HDPE as semi-crystalline polymers. FTIR spectrum of 2020-12-04 · Fourier transform infrared (FTIR) spectroscopy probes the vibrational properties of amino acids and cofactors, which are sensitive to minute structural changes. The lack of specificity of this A Fourier Transform InfraRed (FT-IR) Spectrometer is an instrument which acquires broadband Near InfraRed (NIR) to Far InfraRed (FIR) spectra. Unlike a dispersive instrument, i.e. a grating monochromator or spectrograph, FTIR spectrometers collect all wavelengths simultaneously.\nAre you a GRAMS user? Try our 30 day free trial. We think you will prefer using Essential FTIR. Fourier Transform Infrared (FTIR) Reference Spectra The Clean Air Act Amendments (CAAA) was published in November 1990. Title III of the Clean Air Act includes a list of 189 hazardous air pollutants (HAPS) for which test methods must be established. Fourier transform infrared spectroscopy (FTIR) is a fast, easy and reliable technique for material identification and quantification of constituents in a sample.\nIR spectroscopy - IFM\nThe most common use is in the identification of unknown materials and confirmation of production materials (incoming or outgoing). The information content is very specific in most cases, permitting fine discrimination between like materials.\nTuber extract of Arisaema flavum eco-benignly and effectively\nAs can be seen from the graph, the absorption peak at 3272.84 cm-1 The main aim of the task was to use ATR-FTIR infrared spectroscopy to compare The IR absorption spectra at the resolution of one data point per 1 cm-1were 28 Jun 2018 Optical spectroscopy, such as Fourier Transform Infrared (FTIR) spectroscopy, provides chemical material contrast based on molecular vibrations, Products 1 - 25 of 367 For fast and accurate FTIR, FT-NIR, and FT-MIR analysis in a flexible, highly configurable system, count on our market-leading infrared (IR) Fourier Transform Infrared Spectroscopy (FTIR) is a technique that is extremely useful for the characterization of organic materials (including polymers) and certain 19 Jan 2008 Fourier Transform Infrared Spectroscopy (FTIR) identifies chemical bonds in a molecule by producing an infrared absorption spectrum. Fourier-Transform-IR-Geräte (FTIR) enthalten anstelle eines Gittermonochromators bzw. Prismenmonochromators ein Interferometer. Im Allgemeinen werden 1 May 1998 We present here the use of Fourier transform infrared (FTIR) absorbance spectroscopy in the mid-infrared as a method to calculate mineral 31 Mar 2017 Harnessing the strengths of Fourier transform infrared spectroscopy (FTIR) and recent improvements in chemometrics, new analytical methods Fourier Transform Infrared (FTIR) Spectroscopy is used to perform qualitative and quantitative analysis of organic compounds and to determines the chemical av M Schön · 2007 — Tolkning av spektrum från Fourier transform infraröd spektroskopi (FTIR) på industriella termoplaster. Fourier transform infrared spectroscopy (FTIR) spectral av U Svedberg · 2004 · Citerat av 5 — FTIR spectroscopy should be considered a standard technique within the field of occupational and environmental hygiene. Keywords: FTIR, Raw Materials Identification Testing by NIR Spectroscopy and Raman Spectroscopy Easy Macro Function Automates Routine LabSolutions IR Operations. av M Schön · 2007 — Polykemi AB uses FTIR-analysis continuously in material identification, trouble shooting and development.\n•NMR (Nuclear magnetic resonance). •MS. (Mass spectroscopy). •IR. (Infrared spectroscopy).\nVarför är blodtrycket lägre i venerna än i artärerna\n3011. 2979 0.1.\nFTIR Petrochemicals .\nÅrsredovisning bostadsrättsförening bolagsverket\nswi prolog examples\nkonto nr swedbank\nstora industrier stockholm\ndisponibel inkomst sverige\n- Eric olaison twitter\n- Respons vaggtelefon\n- Musik gymnasium berlin\n- Small creditor ability to repay\n- Vad ingar i preliminarskatt\n- Fysioterapeut engelska\n- Dans i stockholm\n- Vascular surgeon\n- Etops planning minima\nFourier transform infrared spectroscopy, a new method for\nFTIR spectrum of the same 5.72-ct heat-treated blue sapphire taken with the DRIFTS method.\nGemSpectr – Appar på Google Play\nIn the present study when the FTIR spectrum of BSA, PLGA-PVA and BSA with PLGA-PVA (Figures 1, 2, and 3) were compared, no physico-chemical interaction was detected. For direct spectral comparison of FTIR spectra, some preprocessing steps are very helpful. Here you see how to process a series of spectra by- cutting of bad FTIR spectra reveal the composition of solids, liquids, and gases. The most common use is in the identification of unknown materials and confirmation of production materials (incoming or outgoing). The information content is very specific in most cases, permitting fine discrimination between like materials. FTIR graph are collectively known as the fingerprint region. Each region is unique for an individual compound and are thus extremely helpful in comparisons between different FTIR graphs.\nFTIR spectra Hazardous . FTIR spectra Pollutants .","domain":"optical_engineering"}
{"url":"http://physicsclasses.online/application-of-total-internal-reflection/","date":"2023-10-01T17:58:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510924.74/warc/CC-MAIN-20231001173415-20231001203415-00540.warc.gz","language_score":0.9278337955474854,"token_count":540,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__180676589","lang":"en","text":"Application of total internal reflection ( T.I.R) –\nT.I.R in nature and its technological application-\nBrilliance of diamond- The brilliance of diamond is due to the total internal reflection of light. Refractive index for diamond is very large which is near about 2.42 , so that critical angle for diamond air is 24.40. The diamond is cut suitably so that light entering the diamond from any face falls at an angle greater than 24.40. Therefore , it suffers multiple T.I R. at various faces , and remains within the diamond , falling to come out . Hence the diamond sparkles.\nMirage– Mirage is an optical illusion of water observed generally in desert in hot summer day. An inverted image of an object such as tree is observed along with the object as if the tree were on the bank of a pound of water.\nOptical fibres – It is a device based on Total internal reflection by which signal may be transmitted from one location to another. It is a thin fibre of plastic specially coated glass , in which light enters at one end leaves it at other end suffering a number of total internal reflection with little loss of energy . it works even it is bent or twisted.\nThe structure of The structure of optical fibre consists of a core surrounded by cladding . Core ( very high quality glass/silica/plastic) is denser medium of refractive index µ1 and cladding ( glass/plastic) is relatively rarer medium of refractive index µ2 such that µ1 > µ2 .When light incident at one end of the core gets reflected and will be incident on the interface between the core and cladding at an angle greater then the critical angle and light continues reflecting in the core. After several reflection light comes out to the other side i.e. at the destination.\nApplication of optical fibre –\n( I ) It is used to transmit light without loss of intensity over a long distance of several kilometers .\n(ii) It is used in the in the manufacture of medical instruments, called endoscope for visual examination of stomach and intestines etc. of patients.\n(iii) It used for telecommunication, i.e., in transmitting audio and video signals to long distance.\n(iv) It is used to measure the blood flow to the heart in the form of photometric sensor.\n(v) It is used to measure refractive indices of the liquid.\nTotally reflected glass prism – Prism designed to bend light by 900, or 1800 the phenomenon of total internal reflection , such prisms are used to invert images without changing their sizes.","domain":"optical_engineering"}
{"url":"https://www.tp-link.com/bg/business-networking/accessory/tl-fc311a-20/","date":"2022-08-08T17:23:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570868.47/warc/CC-MAIN-20220808152744-20220808182744-00711.warc.gz","language_score":0.8339241743087769,"token_count":611,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__23218393","lang":"en","text":"TL-FC311A-20 is a gigabit media converter, providing a gigabit RJ-45 port and a gigabit SC fiber port, which can convert between electrical and optical signals. And long-distance data transmission through optical fiber can be applied to commercial scenarios such as park security monitoring and wireless networking.\nHow This Product Works\nTL-FC311A-20 adopts WDM (wavelength division multiplexing) technology, helping send and receive data at a distance of up to 20 km with only a single mode fiber, which saves half of the cable deployment cost for customers. TL-FC311A-20 transmits data at 1550 nm wavelength and receives data at 1310 nm wavelength on optical fiber. Therefore, the terminal device used in conjunction with the TL-FC311A-20 should send data at a wavelength of 1310 nm and receive data at a wavelength of 1550 nm. TP-Link another media converter TL-FC311B-20 is one of the products that can cooperate with TL-FC311A-20.\nBesides, this media converter can be used as a standalone device (no rack required) or used with TP-Link's TL-FC1420 rack for auto MDI/MDI-X in TX port in which duplex mode is automatically negotiated.\nПрисъединете се към TP-Link общносттаTP-Link се отнася сериозно към вашата поверителност. За повече подробности относно практиките за поверителност на TP-Link вижте Политиката за поверителност на TP-Link..\nCookie SettingsПриемете всички бисквитки\nThese cookies are necessary for the website to function and cannot be deactivated in your systems.","domain":"optical_engineering"}
{"url":"http://increasehealth.org/post/innovative-imaging-system-uses-night-vision-technology-to-tackle-common-side-effect-of-cancer-treatment","date":"2023-11-30T23:18:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100258.29/warc/CC-MAIN-20231130225634-20231201015634-00642.warc.gz","language_score":0.9354296326637268,"token_count":406,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__181578149","lang":"en","text":"Innovative imaging system uses night vision technology to tackle common side effect of cancer treatment\nApril 04, 2016\nThe 19 patents and patent applications covering the system were previously held by a total of four separate academic institutions: Baylor College of Medicine, Purdue University, Texas A&M University and UTHealth. UTHealth recently assumed management of the entire portfolio. Baylor College of Medicine and the Texas A&M University System signed an agreement with UTHealth to make the consolidation of the patent portfolio a reality and to make the entire portfolio available for commercial development. During Sevick's five years with Texas A&M and the Texas Engineering Experiment Station, she was granted several of these patents.\n\"This agreement provides a great example of local academic institutions working together to bundle intellectual property around an important, innovative technology to make it more attractive to commercial investment. We look forward to working with a commercial partner to get this technology into the clinic,\" said Bruce D. Butler, Ph.D., vice president for research and technology at UTHealth.\nThe system involves micro doses of fluorescent dyes and specially modified near infrared cameras. With the aid of the light sensitive cameras, Sevick and her colleagues can observe a fluorescent dye as it works its way through the lymphatic system, indicating valve behavior and flow dynamics. The fluorescent light emission can be seen through the skin by the camera.\nIn contrast to systems that use computed tomography (CT) scanners or positron emission tomography (PET) imagers, the cameras used in this system are relatively inexpensive and easy to use, Sevick said. Additionally, the contrast dyes used in this system are non-radioactive and can generate images at micro dosing levels. The ability to administer micro doses dramatically reduces the potential for side effects to the patient from the dyes and facilitates approval of the technology through the regulatory process, she said.\nSevick's group is developing further applications of this system for imaging of other diseases.\nSOURCE University of Texas Health Science Center at Houston","domain":"optical_engineering"}
{"url":"http://www.musicfactorydirect.com/product/13755/Stage_and_Studio","date":"2013-05-26T08:32:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368706762669/warc/CC-MAIN-20130516121922-00063-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.8407764434814453,"token_count":94,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__207339284","lang":"en","text":"MBT Lighting LEDPAR96 Par Light\nThe PAR CAN with 96 LEDs! Take advantage of the low power consumption, low heat and long life of LED technology. Compact fixture uses 32 red, 32 green, 32 blue bright LEDs which can be combined to project a wash of just about any color, including white. 4 channel DMX512 control. Built in color change and chasing functions. 3-pin XLR DMX in and out, 10 DIP switches.","domain":"optical_engineering"}
{"url":"https://miku.ricoh/blog_en/2017/08/09/blog_en.html","date":"2021-09-20T23:38:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780057119.85/warc/CC-MAIN-20210920221430-20210921011430-00642.warc.gz","language_score":0.9495641589164734,"token_count":326,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__232994148","lang":"en","text":"What is RICOH THETA? Part 1\nThis is part 1 which introduces the enjoyment of THETA.\nTHETA is a camera (or device) that can capture an entire scene in a single shot.\nImages captured by two ultra-wide angle lenses (also called fish-eye lens) on the front and rear of the camera are pasted together (also called stitch processing) in real time to create a 360-degree image. You only need to push a button to operate the camera to capture video and still images. You can easily record the entire space with you in it.\nA dedicated app can also be used to connect the camera to a smartphone over Wi-Fi so that you can capture an image of the scene while viewing it on the smartphone screen in real time. You can operate the camera from a distance so that you don’t appear in the shot and also easily take a cool selfie showing a natural composition shot.\nAnd for the experts who want to express their passion for detail, it is possible to adjust the brightness and color of images while simulating still images on a smartphone screen using the live view function.\nYou can capture 360-degree images easily with THETA without having to think about anything difficult and can create an image with as much detail as desired. The camera only has four buttons but there is more to it than first meets the eye. Well, whether you want to capture images easily or with greater detail, either way is definitely fun.\nWe have come to the end. Next time will be about the enjoyment of looking at images shot with THETA.","domain":"optical_engineering"}
{"url":"https://fixoserror.com/night-vision-goggles-are-becoming-more-affordable/","date":"2022-08-11T17:18:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571483.70/warc/CC-MAIN-20220811164257-20220811194257-00607.warc.gz","language_score":0.9596438407897949,"token_count":737,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__21620012","lang":"en","text":"Thanks to current technology, there is no need to spy in the dark to observe what is happening all over the street. Many individuals believe that night vision goggles are the greatest device available.\nWhenever folks think of or debate night vision technology, they constantly think of spy movies. Do they function, or are they just another sort of filmmaking magic? If you’re curious, the technology is both genuine and effective. On an overcast, moonless night, a normal pair of night vision goggles would enable you to see a person standing 200 yards away. Isn’t it amazing?\nThere are two kinds of night vision technologies. The first is based on the picture augmentation idea. It works by capturing the little quantity of light present in darkness and magnifying it to the level where things may be seen. It even captures light from the bottom end of the infrared light spectrum, which the naked eye cannot see.\nThermal imaging is another method through which target acquisition equipment functions. The top end of the infrared light spectrum is captured in this procedure. This portion of the light spectrum is transmitted in the form of heat rather than light as we know it. The more light that is emitted by a heated item, the more of it is generated.\nThis technology has been implemented into a variety of popular goods and used in a variety of ways. They are classified into three categories: scopes, goggles, and cameras. Monocular scopes are often carried in one’s hand or placed on a weapon. These are ideal for quick viewing from a fixed posture. They are appropriate for usage for a longer period also during mobility since they are worn by the user. Cameras are useful for surveillance because the pictures they collect may be recorded to a recorder or viewed remotely on a monitor.\nFor many years, they were solely utilized by the army. During the conflict, they were employed to detect the enemy and so avoid a surprise attack. They were eventually employed by law enforcement authorities to track down criminals.\nOfficers have also been using them to find missing individuals in dark regions. Consumers are finding a variety of methods to benefit from the usage of night goggles. Many hunters choose to hunt at dark in the hopes of catching a substantial catch. The night vision goggles are ideal for stalking their prey. Many individuals find them useful for discovering misplaced things in the dark.\nThe goggles use an infrared lamp with a tiny optical sensor to locate things that are difficult to see with the naked eye. These are frequently used by paratroopers to guide them and through clouds.\nNumerous individuals are unsure that these types of equipment can also be found in haunted houses. They allow employees to observe consumers without being discovered. The use of a goggle for night vision allows the haunted mansion to be conducted securely.\nMore information about them can be found at the sites like www.agmglobalvision.com.\nThe infrared illuminator embedded into the goggles allows you to view clients from hundreds of meters away. Being a goblin is now a lot of fun thanks to modern technology. Due to the high expense of the goggles, many individuals were hesitant to purchase them in the past.\nPrices have recently decreased significantly, making them more desirable. Upon this marketplace, there are two kinds of night vision goggles. The first is a thermal imaging device, which uses heat to record a fraction of the light reflected by things.\nSpecialists are the most likely to use these. The picture enhancing gadget is the most common type. These gather light and amplify it, allowing it to be used in the dark. The improved gadget displays brilliant visuals with a lot of information.","domain":"optical_engineering"}
{"url":"http://astromerchant.tradeindia.com/led-panel-light-3028124.html","date":"2017-10-24T09:21:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-43/segments/1508187828356.82/warc/CC-MAIN-20171024090757-20171024110757-00208.warc.gz","language_score":0.9087342023849487,"token_count":123,"dump":"CC-MAIN-2017-43","global_id":"webtext-fineweb__CC-MAIN-2017-43__0__277519649","lang":"en","text":"|Home||» Products||» Panel Light||» Led Panel Light|\nLed Panel Light\nBeing well-equipped with the latest technology machinery & equipments and supported by a team of professionals we are engaged in manufacturing and supplying Led Panel Light. This range of light is extremely demanded in the market due to its high illumination. The offered light is designed using the superior quality material and advanced technology in compliance with the industry preset norms. Additionally, the quality of this Led Panel Light is checked on different parameters under the supervision of our quality inspectors.\n- Optimum brightness\n- High energy efficiency\n- Shock proof","domain":"optical_engineering"}
{"url":"https://sungzu.com/uses-crystalline-silicon-battery-field/","date":"2021-08-04T19:28:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046154897.82/warc/CC-MAIN-20210804174229-20210804204229-00561.warc.gz","language_score":0.9010962247848511,"token_count":449,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__59863344","lang":"en","text":"Crystalline silicon material is the most important photovoltaic material. Its properties are gray-black solid with metallic luster, high melting point (1410), high hardness, brittleness, and inactive chemical properties at normal temperature. Currently widely used in semiconductor, solar photovoltaic power generation and other aspects. The following batteries can be made in the battery field:\n1. Monocrystalline silicon solar cell\nAt present, the photoelectric conversion efficiency of single crystal silicon solar cells is about 17%, and the highest is 24%. This is the highest photoelectric conversion efficiency among various solar cells, but the production cost is too large to be widely used. And commonly used. Since monocrystalline silicon is usually packaged in tempered glass and waterproof resin, it is durable and has a service life of up to 25 years.\n2. Polycrystalline silicon solar cells\nThe manufacturing process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower, and the photoelectric conversion efficiency is about 15%. In terms of production cost, it is cheaper than monocrystalline silicon solar cells, simple material manufacturing, power saving, and low total production cost, so it has been greatly developed. In addition, the life of polycrystalline silicon solar cells is also shorter than that of monocrystalline silicon solar cells. In terms of performance and price ratio, monocrystalline silicon solar cells are slightly better.\n3. Amorphous silicon solar cell\nAmorphous silicon solar cells (thin film solar cells) are new thin film solar cells that emerged in 1976. They are completely different from monocrystalline and polycrystalline solar cells. This process is greatly simplified, with low silicon material consumption and low power consumption. The main advantage of the reduction is that it can generate electricity in low light conditions. However, the main problem of amorphous silicon solar cells is that the photoelectric conversion efficiency is low. At present, the international advanced level is about 10% and it is not stable enough. Conversion efficiency will decrease over time.","domain":"optical_engineering"}
{"url":"https://www.pvatepla.com/en/technology-fields/crystal-growing/","date":"2023-11-30T01:05:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100164.15/warc/CC-MAIN-20231130000127-20231130030127-00718.warc.gz","language_score":0.8452796339988708,"token_count":234,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__309370616","lang":"en","text":"High-performance systems, close cooperation with research institutions and industry partners, customized system design and project execution make it possible to grow high-quality crystals for the semiconductor industry, high-performance electronics, and the photovoltaic and electronics industries.\nWe offer you our Czochralski (CZ) systems for the production of\n- Silicon crystals (Si) for the semiconductor and solar industry\n- Single crystals made of oxides for numerous applications, primarily in laser and sensor systems, single crystals made of germanium (Ge) for detectors and multi-junction solar cells\nOur Vertical Gradient Freeze (VGF) systems support your production of\n- Monocrystalline compound semiconductor crystals with minimal defect density\n- Crystals such as gallium arsenide (GaAs), indium phosphide (InP), and gallium phosphide (GaP), which are used in optoelectronics (LED and laser systems), semiconductor technology, high-frequency technology, solar technology, and telecommunications technology.\n- Highly productive compound semiconductor crystals such as GaAs, InP, germanium or CaF2","domain":"optical_engineering"}
{"url":"https://www.worldfishing.net/news101/products/electronics/navigate-more-safely-with-flir-thermal-images","date":"2019-12-07T05:17:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-51/segments/1575540495263.57/warc/CC-MAIN-20191207032404-20191207060404-00394.warc.gz","language_score":0.8742663860321045,"token_count":555,"dump":"CC-MAIN-2019-51","global_id":"webtext-fineweb__CC-MAIN-2019-51__0__23773480","lang":"en","text":"Navigate more safely with FLIR thermal images\nUS camera manufacturer, FLIR Systems, has unveiled a new range of maritime thermal cameras delivering advanced awareness-enhancing technologies, safer navigation and seamless integration with onboard boat systems.\nThe successor to FLIR’s M-Series of maritime cameras, the next generation M300 Series comprises five models featuring new pan and tilt housings, four with the FLIR Boson 640 or 320 resolution thermal camera cores and various fixed field of view lenses, plus a visible-only model, the M300C, featuring a high-definition, colour, low-light camera with 30X zoom.\n“Our FLIR M300 Series cameras employ advanced sensing and imaging technologies so first responders, commercial mariners, and recreational boaters can navigate safer in limited visibility,” said Travis Merrill, president of the commercial business unit at FLIR.\n“These professional-grade marine camera offer industry-leading performance and deep integration with Raymarine Axiom navigation displays to bring mariners a new level of situational awareness,” he added.\nThe cameras enable safer navigation through improved image stabilisation using an integrated attitude heading reference system sensor, providing captains with a steady view in rough seas. The M300 Series is also designed to integrate with the latest generation marine navigation displays, including FLIR’s Raymarine Axiom family of multifunction displays.\nThe dual sensor M364C and M364C LR offer mariners greater awareness via FLIR’s Colour Thermal Vision technology which, together with the Raymarine Axiom navigation displays, blends thermal and visible colour video for easy identification of targets at night. Additionally, both models feature FLIR’s MSX imaging technology which extracts edges and borders from the visible camera and blends these elements with the thermal image, giving operators improved sight of distant objects.\nLATEST PRESS RELEASES\nThe product range, which was specially compiled and newly developed for aquaculture applications, wa... Read more\nTersan Shipyard Inc. (Tersan Tersanecilik Sanayi ve Ticaret A.S.) announces the contract of their 100th New Building Vessel\nTersan Shipyard Inc. (Tersan Tersanecilik Sanayi ve Ticaret A.S.) announces the contract of their 10... Read more\nFibras Industriales S.A., commercially known as FISA has taken another leap in its international gro... Read more\nThordon Bearings has successfully completed the commissioning of a set of water-lubricated SXL prope... Read more\nThis clever infographic shows why maritime companies should now start smart with their data for exam... Read more","domain":"optical_engineering"}
{"url":"https://supertron.com.sg/optic/55-omron-e3z-t61-sensor.html","date":"2021-05-09T01:50:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243988953.13/warc/CC-MAIN-20210509002206-20210509032206-00131.warc.gz","language_score":0.7843818664550781,"token_count":111,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__206863848","lang":"en","text":"Omron E3Z Optic Sensor\nLong sensing distance of 30 m for Through-beam Models, 4 m for Retro-reflective Models, and 1 m for Diffuse-reflective Models. Mechanical axis and optical axis offset of less than ±2.5° simplifies optical axis adjustment. High stability with unique algorithm that prevents interference of external light.\n- Sensing method: Through beam (emitter + receiver)\n- Sensing distance: 15m\n- Control output: NPN\n- Pre-wired 2m cable","domain":"optical_engineering"}
{"url":"http://www.dyxiangyun.cn/en/","date":"2022-08-09T16:40:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882571056.58/warc/CC-MAIN-20220809155137-20220809185137-00618.warc.gz","language_score":0.8872153759002686,"token_count":193,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__103891286","lang":"en","text":"3nh spectrophotometer, color difference meter and its supporting software provide complete solutions for effectively controlling the entire color management process, helping brands, manufacturers and suppliers to establish a complete color management system and quality control system.\nGloss meter, haze meter and coating thickness gauge provide quality assessment for multi-part products jointly manufactured by different suppliers. 3nh provides surface appearance measurement solutions to ensure reliable quality control.\nThe standard light box provides stable and consistent lighting conditions, allowing you to efficiently perform visual color assessments. The standard light source colorimetric box contains different numbers of standard light source tubes, which are suitable for various production environments and ensure effective quality control of color.\nImage Quality Testing\nAccording to customers' requirements for specified drawings, we can produce various types of reflective and transmissive test chart cards and image inspection standard light sources, and provide image quality evaluation equipment and test solutions.","domain":"optical_engineering"}
{"url":"http://microscopesupply.blogspot.com/","date":"2018-05-22T04:20:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794864624.7/warc/CC-MAIN-20180522034402-20180522054402-00602.warc.gz","language_score":0.9294724464416504,"token_count":121,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__171890223","lang":"en","text":"Wholesale priced microscopes are sold directly by microscope dealers and manufacturers. It is the one-stop source in your search for wholesale microscope equipment. Microscope stores offer varied selection of microscopes for your choice as well as different microscope parts for your microscopy needs.\nWholesale priced microscopes are sold only to dealers and are made available through the internet. Wholesale microscope dealership are scattered all over the world – like the US, Europe, and Asia. Unlike other dealers, wholesale microscope stores could offer you an array of choiced microscopes of over 100 individual types of microscopes.","domain":"optical_engineering"}
{"url":"https://ghalaii.info/about/","date":"2019-11-21T03:04:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496670729.90/warc/CC-MAIN-20191121023525-20191121051525-00122.warc.gz","language_score":0.90260249376297,"token_count":248,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__112637157","lang":"en","text":"“Physics is the knife that cuts into the grain of nature.” Jacob Bronowski\nWelcome to my homepage! My name is Masoud Ghalaii. I am a researcher in quantum information theory at University of Leeds. I have been recipient of the UK White Rose Research Studentship, and\nam employed as a Research Assistant in Quantum Key Distribution at the\nUniversity of Leeds, since October 2018. My principal supervisour is Prof Mohsen Razavi. I am also a member of Quantum Communications Hub of UK.\nMy main fields of interest are\n- Fundamental Physics\n- Quantum Optics and Photonics\n- Quantum [Optical] Information and Communication\nCurrently I’m working on quantum optical communications, and the use of quantum amplifiers and repeaters in continuous-variable quantum key distribution, as well as satellite quantum key distribution. I am however avid for both quantum optics and quantum information.\nFormer Education in brief\nJanuary – July 2015: stagiaire student; Quantum Information Team, Telecom-ParisTech, Paris, France (with Dr Romain Alleaume)\nFull CV available upon request. Send email to M.Ghalaii@leeds.ac.uk.","domain":"optical_engineering"}
{"url":"https://addent-store.myshopify.com/products/rite-lite-2-shade-matching-light-12-led-s-p-n-110075-with-1-neutral-pad-and-2-aa-batteries","date":"2019-06-18T14:37:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998755.95/warc/CC-MAIN-20190618143417-20190618165417-00206.warc.gz","language_score":0.7082453966140747,"token_count":227,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__99641221","lang":"en","text":"Rite-Lite 2 HI CRI Shade Matching Light – 12 LED’s (P/N 110075) - with 1 Neutral Pad and 2-AA Batteries\nRite-Lite 2 HI CRI Shade Matching Light – 12 LED’s (P/N 110075) – A hand held unit which uses 6 White L.E.Ds and 6 Yellow L.E.D.s to produce 3 light wavelengths of light, 5500 ̊kelvin (day light) for choosing a shade, 3200 ̊kelvin (room light) to verify the shade still matches and 3900 ̊kelvin for a final verification that the shade still matches.\nThe Rite-Lite 2 High CRI LED’s recreate the visual spectrum produced by natural sunlight.\nWe Also Recommend\nRite-Lite 2 HI CRI Shade Matching Light with Polarizing Filter – 12 LED’s (P/N 110075-PF) - with 1 Neutral Pad, 2-AA Batteries, Polarizing Filter","domain":"optical_engineering"}
{"url":"https://www.pentol.net/cems/","date":"2023-11-28T19:44:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099942.90/warc/CC-MAIN-20231128183116-20231128213116-00766.warc.gz","language_score":0.9065392017364502,"token_count":353,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__142441579","lang":"en","text":"If scope of measurement does not include soluble gases the cold/dry method can be a good option.\nOptimum choice of measurement method and selection of the most suitable instruments is always an individual matter and Pentol specialists do it after thorough evaluation of all conditions.\nMost of gases can be measured by infrared (IR) and ultraviolet (UV) spectroscopy, both in in situ and extractive options. Each instrument of this type contains a radiation source and a detector measuring radiation intensity after passing the measurement zone. In most cases a non-dispersive measurement technique is used employing phenomenon of infrared or ultraviolet absorption of each measured gas by specific for each individual gas wavelength of radiation. Such method is called using abbreviations NDIR or NDUV respectively.\nNDIR method is more universal because most of gases can be measured this way using single instrument. Ultraviolet waveband (NDUV method) cannot be used to measure CO, CO2 or H2O, however some gases can be measured more precisely. In practice it means that NDUV instruments are used for process purposes, rather than for complete CEMS.\nThere are, however, some other technical solutions based on infrared spectroscopy: analysers using Tuneable Diode Laser Absorption Spectroscopy (TDLAS) and Fourier-transform infrared spectroscopy (FTIR).\nFlame ionisation detection (FID) is a method of measurement of total organic carbon (TOC). Sample is burnt in hydrogen flame and value of ionisation current is proportional to content of all components containing organic carbon. TOC measurement is commonly used as a part of CEMS in waste incinerators and cement plants, as well as for process purposes in chemical and petrochemical industries.","domain":"optical_engineering"}
{"url":"http://www.electroschematics.com/5104/light-emitting-diode-how-it-works/","date":"2018-02-23T08:19:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891814538.66/warc/CC-MAIN-20180223075134-20180223095134-00792.warc.gz","language_score":0.922452986240387,"token_count":2030,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__229174377","lang":"en","text":"LEDs form an inevitable part in the modern electronics as simple indicators to optical communication devices. Light Emitting Diodes exploit the property of the p-n junction to emit photons when it is forward biased. LEDs are specially made diodes to emit light when a potential is applied to its anode and cathode.\nThe history of LED date backs to 1907 when Captain Henry Joseph observed the property of electro-luminescence in Silicon Carbide. The first LED was designed in 1962. It was developed by Holonyak worked at General Electric (GE). It was a GaAsP device. The first commercial version of LED came in the market during 1960s.\nLED technology industry became a boom during 1970s with the introduction of Gallium Aluminium Arsenide (GaAlAs). These LEDs are high bright types and are many times brighter than the old diffused types. Blue and White LEDs was introduced in 1990 which uses Indium Gallium Nitride (InGaN) as the semiconductor. White LED contains a blue chip with white inorganic Phosphor. When blue light strikes the phosphor, it emits white light.\nLEDs are extensively used in electronic circuits because of its advantages over bulbs. Some important features that make LED ideal in electronic circuits are:\nInside the casing of an LED, there are two terminal posts connected by a small chip made of Gallium compound. This material exhibits the property of photon emission when the p-n junction is forward biased. Different colours are produced by dopping the base material with other substances.\nInside the Light Emitting Diode\nBrightness is an important aspect of LED. Human eye has maximum sensitivity to light near 550 nm region of yellow – green part of the visible spectrum. That is why a Green LED appears brighter than a Red LED even though both use same current. The important parameters of LED responsible for its performance are:\nForward current, forward voltage, Viewing angle and Speed of response are the factors affecting the brightness and performance of LEDs. Forward current ( IF ) is the current flowing through the LED when it is forward biased and it should be restricted to 10 to 30 milli amperes other wise LED will be destroyed.\nViewing angle is the off – axis angle at which the luminous intensity fall to half its axial value. This is why LED shows more brightness in full on condition. High bright LEDs have narrow viewing angle so that light is focused into a beam. Forward voltage (Vf) is the voltage drop across the LED when it conducts. The forward voltage drop range from 1.8 V to 2.6 Volts in ordinary LEDs but in Blue and White it will go up to 5 volts. Speed of response represents how fast an LED is switched on and off. This is an important factor if LEDs are used in communication systems.\nIs LED requires a Ballast resistor?\nLED is always connected to the power supply through a series resistor. This resistor is called as “Ballast resistor” which protects LED from damage due to excess current. It regulates the forward current to the LED to a safer limit and protects it from burning.\nValue of the resistor determines the forward current and hence the brightness of LED. The simple equation (Vs – Vf) / If is used to select the resistor value. Vs represent input voltage of the circuit, Vf the forward voltage drop of LED and If, the allowable current through the LED. The resulting value will be in Ohms. It is better to restrict the current to a safer limit of 20 mA.\nThe table given below shows the forward voltage drop of common LEDs.\n|1.8 V||2 V||2.1 V||2.2 V||3.6 V||3.6 V|\nA typical LED can pass 30 –40 mA safe current through it. Normal current to give sufficient brightness to a standard Red LED is 20 mA. But this may be 40 mA for Blue and White LEDs. Current limiting ballast resistor protects LED from excess current that is flowing through it. The value of the ballast resistor should be carefully selected to prevent damage to LED and also to get sufficient brightness at 20 mA current. The following equation explains how a ballast resistor is selected.\nR = V / I\nWhere R is the value of resistor in ohms, V is the input voltage to the circuit and I is the allowable current through LED in Amps. For a typical Red LED, the forward voltage drop is 1.8 volts. So if the supply voltage is 12 V (Vs), voltage drop across the LED is 1.8 V ( Vf ) and the allowable current is 20 mA ( If ) then the value of the ballast resistor will be\n(Vs – Vf) / If = 12 – 1.8 / 20 mA = 10.2 / 0.02 A = 510 Ohms.\nBut 510 ohms resistor is not usually available. Therefore 470 ohms resistor can be used even though the current through the LED slightly increases. But is advisable to use 1 K resistor to increase the life of the LED even though there will be a slight reduction in the brightness.\nFollowing is a ready reckoner for selecting limiting resistor for various versions of LEDs at different voltages.\n|12 V||470 Ω||470 Ω||470 Ω||470 Ω||390 Ω||390 Ω|\n|9 V||330 Ω||330 Ω||330 Ω||330 Ω||270 Ω||270 Ω|\n|6 V||180 Ω||180 Ω||180 Ω||180 Ω||120 Ω||120 Ω|\n|5 V||180 Ω||150 Ω||150 Ω||150 Ω||68 Ω||68 Ω|\n|3 V||56 Ω||47 Ω||47 Ω||33 Ω||–||–|\nAn LED that can give different colours is useful in some applications. For example, an LED could indicate all systems OK when it becomes Green and faulty if it becomes Red. LEDs that can produce two colours are called Bicolour LEDs.\nA bicolour LED encloses two LEDs (usually Red and Green) in a common package. The two chips are mounted on two terminal posts so that the anode of one LED forms the cathode of the other. Bicolour LED gives Red colour if current passes in one direction and turns Green when the direction of current is reversed.\nTricolour and multicolour LEDs are also available which have two or more chips enclosed in a common package. The Tricolour LED has two anodes for red and green chips and a common cathode. So it emits red and green colours depending on the anode that carries current. If both the anodes are connected to positive, both the LEDs lights and yellow colour is produced. Common anode and separate cathode type LEDs are also available.\nBicolour LED glows in different colours ranging from green through yellow orange and red based on the current flowing through their anodes by selecting suitable series resistor to restrict anode current. Multicolor LED contains more than two chips-usually red, green and blue chips- within a single package. Flashing type multicolor LEDs are now available with two leads. This gives a rainbow colour display which is highly attractive.\nIR diodes are widely used in remote control applications. Infrared is actually a normal light with a particular colour which is not sensitive to human eye because its wave length is 950 nm, below the visible spectrum. Many sources like sun, bulbs, even the human body emit infra red rays. So it is necessary to modulate the emission from IR diode to use it in electronic application to prevent false triggering. Modulation makes the signal from IR LED stand out above the noise. Infra red diodes have a package that is opaque to visible light but transparent to infra red. IR LEDs are extensively used in remote control systems.\nThe Photodiode generates current when its p-n junction receives photons from visible or infrared light. The basic operation of a photo diode relies on the absorption of photons in a semiconductor material. The photo-generated carriers are separated by an applied electric field, and the resulting photocurrent is proportional to the incident light. The velocity at which the carriers move in the depletion region is related to the strength of the electric field across the region and the mobility of carriers.\nA photon that is absorbed by the semiconductor in the depletion region will cause the formation of an electron- hole. The hole and electron will be transported by the electric field to the edges of the depletion region. Once the carriers leave the depletion region they travel to the terminals of the photo diode to form a photo current flowing in the external circuitry. In most circuits the photo diode is reverse biased, so that charge is carried by extrinsic charge carriers. The response time of a photo diode is typically 250 nano seconds.\nA laser diode is similar to an ordinary transparent LED but produces Laserwith high intensity. In the laser beam a number of atoms vibrate in such a fashion that all the emitted radiation of a single wave length is in phase with each other. Laser light is monochromatic and passes in the form of a narrow pencil beam. The beam of typical laser diode is 4 mm x 0.6 mm which widens only to 120 mm at a distance of 15 m.\nLaser diode can be switched on and off at higher frequencies even as high as 1 GHz. So it is highly useful in telecommunication systems. Since the laser generates heat on hitting the body tissues, it is used in surgery to heal lesions in highly sensitive parts like retina, brain etc. Laser diodes form important components in CD players to retrieve datas recorded in compact discs.","domain":"optical_engineering"}
{"url":"http://op.niscpr.res.in/index.php/IJCT/article/view/51809","date":"2023-09-30T13:01:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510676.40/warc/CC-MAIN-20230930113949-20230930143949-00223.warc.gz","language_score":0.8681174516677856,"token_count":361,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__26259945","lang":"en","text":"Optical characterization of different oxide nanomaterials dispersed PVA/PEO blend matrix-based hybrid polymer nanocomposites for advances in optoelectronic device technologies\nOptical properties of different oxide nanomaterials (viz. zinc oxide (ZnO), tin oxide (SnO2), silica (SiO2), and alumina (Al2O3)) as nanofillers (NFs) and a host polymer matrix of poly(vinyl alcohol) (PVA)/poly(ethylene oxide) (PEO) blend based hybrid polymer nanocomposites (HPNCs) have been investigated by employing ultraviolet-visible (UV-Vis) spectroscopy. The UV-Vis absorbance spectra over the photons wavelength range 200-800 nm, and the absorption coefficient, energy bandgap, and Urbach energy of the PVA/PEO/NFs HPNC films are determined and reported. The dependence of the optical characteristics of these HPNCs on the type of oxide nanofillers and their concentration have been studied which is found correlated with the optical properties of the nanofillers. Considering the results, suitability of PVA/PEO/NFs materials as potential candidates for UV-shielder, light diffuser, bandgap tuner, and photo-sensor/detector in the design and evolution of various flexible-type optoelectronic devices/components have been discussed.\nOptical properties; Optoelectronic applications; Oxide nanofillers; Polymer nanocomposites; PVA/PEO blend\nFull Text: PDF (downloaded 415 times)\n- There are currently no refbacks.","domain":"optical_engineering"}
{"url":"https://mindhacks.com/2008/12/03/technology-to-see-through-other-peoples-eyes/","date":"2023-05-31T18:54:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224647409.17/warc/CC-MAIN-20230531182033-20230531212033-00025.warc.gz","language_score":0.9369096159934998,"token_count":293,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__210440070","lang":"en","text":"Neurotech analyst Zack Lynch has an interesting post on his Brain Waves blog about trying out the EyeSeeCam, a wearable camera that tracks eye movements so it can film exactly where the person is looking, allowing others to literally see the world through somebody else’s eyes.\nLynch wore the device while at the recent Society for Neuroscience conference and describes how it works:\nEyeSeeCam is based on the combination of two technologies: an eye tracking and a camera motion device that operates as an artificial eye. The challenges in designing such a system are mobility, high bandwidth, and low total latency. These challenges are met by a newly developed lightweight eye tracker that is able to synchronously measure binocular eye positions at up to 600 Hertz. The camera motion device consists of a parallel kinematics setup with a backlash-free gimbal joint that is driven by piezo actuators with no reduction gears. As a result, the latency between eye rotations and the camera is as low as 10 milliseconds.\nEyeSeeCam provides a new tool for fundamental studies in vision research, particularly, on human gaze behavior in the real world. This prototype is a first attempt to combine free user mobility with biological image stabilization and unrestricted exploration of the visual surround in a man-made technical vision system.\nDoes this remind anyone else of Strange Days?\nLink to Zack Lynch on wearing the EyeSeeCam.\nLink to scientific paper with cool video.","domain":"optical_engineering"}
{"url":"http://smart-friends.com/eng/Products/Security-technology","date":"2018-01-20T13:14:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084889617.56/warc/CC-MAIN-20180120122736-20180120142736-00795.warc.gz","language_score":0.8564323782920837,"token_count":133,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__135231874","lang":"en","text":"This WiFi pan/tilt camera comes with a suitable App for iOS or Android, and offers a brilliant image quality at any time of the day or night with a resolution of 720p, as well as an infrared night vision function. The surveillance range of the camera is 350° in the pan range and 90° in the tilt range.\n- For an effective all-round monitoring of interior spaces\n- Guided step-by-step installation via App (iOS, Android)\n- App access for up to 8 cameras\n- HD resolution (720p) and infrared night vision function for a brilliant picture quality\nItem No.: TVAC19000A","domain":"optical_engineering"}
{"url":"https://www.webbingproducts.com/products/custom-webbing/","date":"2018-07-16T19:46:31Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-30/segments/1531676589455.35/warc/CC-MAIN-20180716193516-20180716213516-00023.warc.gz","language_score":0.8893632888793945,"token_count":206,"dump":"CC-MAIN-2018-30","global_id":"webtext-fineweb__CC-MAIN-2018-30__0__274181181","lang":"en","text":"Webbing Products offers an extensive colour range with in excess of 100 standard colours to meet customers’ requirements. This colour range can be expanded further to include any additional customer requirements.\n- Colour masters are maintained electronically and matched using a colour photo spectrometer, ensuring colour consistency unbiased by visual inspection.\n- A combination of the colour photo spectrometer, dyestuff technical data and state-of-the-art predictive software, guarantees a colour-matching process that is efficient and accurate. This ensures optimal cost management during both the product development and manufacturing processes\n- Various technologies are utilised to provide the required colour, including\n- Pre-dyed yarn\nColour Chart Disclaimer\nThe colour chart is an average representation of the colour across differing webbing, weave patterns and yarn types. These various construction options result in slight shade variations to the standard. As such, this chart is for reference purposes only and we recommend that any colour requirements are matched and approved on the applicable webbing construction chosen.","domain":"optical_engineering"}
{"url":"https://www.delairlabs.com/copy-of-front-wave-audio","date":"2020-08-06T09:44:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439736902.24/warc/CC-MAIN-20200806091418-20200806121418-00060.warc.gz","language_score":0.9193866848945618,"token_count":110,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__9356629","lang":"en","text":"A non-perforated screen eliminates the moiré effect. It brings out the best of laser and 4K projection.\nWith a non-perforated screen, there is no light loss due to perforations. With the same amount of light from the projector, brightness is increased compared to perforated screens.\nA non-perforated screen improves the contrast of the image. Details are more realistic, and the picture is more immersive than ever before.\nLearn how screen perforations deteriorate picture brightness and contrast","domain":"optical_engineering"}
{"url":"https://2dmaterials.alfa-chemistry.com/photonic-and-optoelectronic-applications-of-2d-materials.html","date":"2023-12-05T01:15:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100540.62/warc/CC-MAIN-20231205010358-20231205040358-00717.warc.gz","language_score":0.8923627138137817,"token_count":981,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__69170317","lang":"en","text":"- Electronic Applications of 2D Materials\n- Sensors and Energy Devices Applications of 2D Materials\n- Photonic and Optoelectronic Applications of 2D Materials\n- Bio and Ecological Applications of 2D Materials\nPhotonic and Optoelectronic Applications of 2D Materials\nMany photonic and optoelectronic applications, such as saturable absorbers, photodetectors, ultrathin lenses, photodetectors, and quantum photonic devices, are made possible by the unique physical features of two-dimensional (2D) materials. Alfa chemistry tailors solutions for applications using 2D materials. Due to the increased demand for miniaturized devices, dimensionality reduction of devices on a chip has been particularly intensively studied. Optical modification methods for 2D materials are a good option since they are a quick and inexpensive approach to making a variety of on-chip photonic and optoelectronic devices. Please get in touch with us right away so that we can assist you with your application study.\nPolarizers and Absorbers\nDue to the engineering involved in their manufacture, conventional materials for ultra-thin polarizers are difficult to use, resulting in poor extinction ratios and inefficient performance. Alfa Chemistry's 2D materials provide substantial advantages in overcoming these factors. We also leverage optical alterations to give a high-precision technique that can be applied to isolated components as well as larger systems in general. Laser modification of 2D materials can overcome the material limits of thin polarizers and absorbers, giving integrated photonic circuits a universal local modification approach.\nFig 1. Laser-reduced GO saturable absorber in a mode-locked laser setup. (Sobon G, et al. 2012)\nThe continuous development of innovative photodetectors with a wide spectral range could be aided by 2D materials and their 2D heterostructures. They have a wide range of tunability and distinctive features due to their dominance in surface chemistry.\nAlfa Chemistry can generate heterostructures without the use of multilayer transfers by using optically modified procedures. Photodetectors made of optically modified 2D materials outperform photodetectors made of traditional materials. Local laser oxidation of In2Se3 produces lateral In2Se3-In2O3 heterostructured photodetectors that exceed most new 2D material photodetectors by several orders of magnitude and reach the performance of state-of-the-art silicon-based photodetectors, for example. The intrinsic band shift of the heterojunction and the formation of a localized charge depletion layer are responsible for the high detection rate.\nUltra-thin lenses are well suited for micro-broadband applications. However, standard ultra-thin lenses have performance limitations due to chemical and thermal instabilities, and reducing them to monolayer thickness can result in lower modulation efficiency.\nAs Alfa Chemistry's solution to these challenges, 2D materials combined with optically modified methods provide stable lens media. GO's laser reduction can be used to create scattering patterns that overcome modulation inefficiencies. Optically modified 2D material ultra-thin lenses improve nearly every aspect of photonic systems while allowing for more complicated applications like particle micro tracking.\nFig 2. Broadband subdiffraction focusing working principle and the focal spot radii of yellow, green, and blue light shone through a TMD-based ultrathin lens. (Qin F, et al. 2021)\nDue to their intense light-matter interactions and simplicity of integration into circuits, quantum light sources based on 2D materials have been extensively studied. Alfa Chemistry is developing hBN-based quantum light sources, using a production approach that involves laser tuning of laser-induced phase transitions and photochemical reactions. This quantum emitter produces single-photon emission at room temperature, which is equivalent to other innovative quantum light sources based on 2D materials. Other optical modification techniques, such as strain, can also cause quantum phenomena like spin defects.\n- Sobon G, et al. (2012). \"Graphene Oxide vs. Reduced Graphene Oxide as Saturable Absorbers for Er-Doped Passively Mode-Locked Fiber Laser.\" Opt. Express. 20(17): 19463-19473.\n- Qin F, et al. (2021). \"pi-Phase Modulated Monolayer Supercritical lens.\" Nat. Commun. 12(1): 32.\nAlfa Chemistry provides cost effective, high quality and hassle free services to our clients worldwide. We guarantee on-time delivery of our results.\nIf you have any questions at any time during this process, please contact us. We will do our best to meet your needs.","domain":"optical_engineering"}
{"url":"https://www.quantumphotonics.club/blank-4","date":"2023-12-03T14:12:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100508.23/warc/CC-MAIN-20231203125921-20231203155921-00743.warc.gz","language_score":0.9440253376960754,"token_count":277,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__297421650","lang":"en","text":"In recent years, silicon-on-insulator (SOI) waveguides have gained considerable interest due to several attractive features such as strong confinement of light, low loss in the near- and mid-infrared regions, cost-effectiveness, and compatibility with CMOS technology. Silicon exhibits a Kerr nonlinearity more than 200 times larger than that of silica. Moreover, its relatively large refractive index allows silicon waveguides to confine light within an area so small that nonlinear effects can be enhanced by more than a factor of 1000 or even more depending on the effective area.\nHamed Saghaei received the B.Sc., M.Sc., and Ph.D. degrees in electrical engineering in 2004, 2007, and 2015, respectively. He is an assistant professor in the department of electrical and computer engineering, at IAU. He is conducting research in the area of:\n-Photonic integrated circuits using silicon-on-insulator technology for the next generation of all optical CPUs,\n-Photonic crystal fibers with a variety of applications(skin cancer detection and non-invasive imaging of sensitive surfaces),\n-Third-generation solar cells.\nIn a scientometric report published by the Scopus Institute at Stanford University, his name was included in the list of the top 2% of the world's most-cited scientists.","domain":"optical_engineering"}
{"url":"http://merkpd.com/web/webenpc/CaseAnalysis.s?method=showDetailNewsInfo&caseId=34","date":"2022-08-09T08:23:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570913.16/warc/CC-MAIN-20220809064307-20220809094307-00586.warc.gz","language_score":0.9454627633094788,"token_count":120,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__190289198","lang":"en","text":"At present, the daily thermal maintenance of portable thermal imaging cameras used in substations has made great progress compared with the traditional methods, but the shortcomings are also obvious:\n1, portable operation detection, can not monitor the heat distribution field in real time, which often causes relatively large property losses because the diagnosis is not timely.\n2. State detection of unattended substation equipment. If portable infrared equipment is used, it will often increase the labor intensity.\n3. Data cannot be transferred to memory and storage in real time, and the measurement area is limited due to the limited battery life.","domain":"optical_engineering"}
{"url":"http://tinkersphere.com/107-addressable-rgb-products","date":"2017-03-29T18:57:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-13/segments/1490218191353.5/warc/CC-MAIN-20170322212951-00580-ip-10-233-31-227.ec2.internal.warc.gz","language_score":0.7974644899368286,"token_count":132,"dump":"CC-MAIN-2017-13","global_id":"webtext-fineweb__CC-MAIN-2017-13__0__113815246","lang":"en","text":"Addressable RGB LED products that are easy to control via Arduino for dazzling lighting effects. Control all these lights with the same WS2812 code!\nThis is a high speed, ultra high density Addressable RGB LED strip with 144 individually addressable APA102 RGB LEDs packed on a single 3.28ft (1 meter) long strip! Control with 2 pins, Clock and signal! Arduino & Raspberry Pi compatible.\n3.28 feet (1 meter) of singly addressable RGB LEDs on one strip. This strip contains 60 WS2812 RGB LEDs that are each individually addressable. Arduino Compatible. Waterproof silicone casing for outdoor use.","domain":"optical_engineering"}
{"url":"https://dronepilots.news/2021/01/21/quantum-communication-network-goes-long-with-help-of-drones/","date":"2021-11-30T19:09:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359065.88/warc/CC-MAIN-20211130171559-20211130201559-00424.warc.gz","language_score":0.9356191158294678,"token_count":355,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__154105744","lang":"en","text":"In the future, communication networks could be based on the bizarre world of quantum mechanics, and now we’re a step closer to that reality. Researchers in China have demonstrated a quantum network where entangled photons are beamed between drones and ground stations, successfully maintaining their quantum link over a distance of 1 km (0.6 miles).\nQuantum entanglement involves pairs of particles becoming so intertwined that it becomes impossible to describe them individually. By measuring a property of one of them, such as its polarization, you’ll be able to tell the same property of its partner. Weirder still though, it appears to be the case that you’re actually changing the state of the partner instantly, no matter how much distance separates them.\nThat bizarre phenomenon can be taken advantage of to make fast and secure quantum communication networks. Entangled pairs of photons are generated, then one photon is passed to each user to allow them to communicate instantly by measuring their photons. Most experimental setups so far have tested this using fiber optic cables, but the photons can lose their entanglement over long distances as they bounce off the sides of the optical fibers.\nTransmitting them through the air may boost the distances that quantum communications can work. In the past, that’s been done using satellites such as Micius, which a few years ago smashed records by transmitting quantum information between two ground stations 1,200 km (746 miles) apart.\nClick to read this article in its entirety.\nFor more information and to read more of this story, click here.\nSource: Michael Irving/New Atlas\nPhoto credit: conceptw/Depositphotos\nThe post Quantum communication network goes long with help of drones appeared first on Drone Magazine.","domain":"optical_engineering"}
{"url":"http://www.wallcoinc.com/Extech_DT300_LASER_DISTANCE_METER_p/wal3-dt300.htm","date":"2019-06-16T15:24:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627998250.13/warc/CC-MAIN-20190616142725-20190616164556-00031.warc.gz","language_score":0.8493903279304504,"token_count":134,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__201975","lang":"en","text":"DT300 LASER DISTANCE METER\nThe comprehensible DT300 Laser Distance meter accurately measures\nfrom 2\" to 164' (0.05 to 50m) and can simultaneously calculate area and\nvolume. It finds it applications in constructions, plant maintenance,\nHVAC, marine works to name a few.\nThe key features of the Laser Distance Meter include:\nWallco Incís DT300 Laser Distance Meter comes with easy-to-carry\ncarrying case, which makes it convenient to use for the users and also\nwith 2 AAA batteries for usage. The user manual helps users to use the\nproduct even more effectively.","domain":"optical_engineering"}
{"url":"https://skybelltechnologies.zendesk.com/hc/en-us/articles/207334876-What-is-the-SkyBell-HD-Video-Camera-Output-and-Performance-","date":"2017-07-21T08:28:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-30/segments/1500549423764.11/warc/CC-MAIN-20170721082219-20170721102219-00585.warc.gz","language_score":0.8767258524894714,"token_count":112,"dump":"CC-MAIN-2017-30","global_id":"webtext-fineweb__CC-MAIN-2017-30__0__73021632","lang":"en","text":"SkyBell HD Camera is a 1080p camera that broadcasts in 720p.\nThe 1080p camera maximizes the output for the 720p stream, so the picture quality is better than a 720p camera broadcasting at 720p.\nIt broadcasts at 720p to reduce bandwidth and ensure stability.\nThe field of view is 180 degrees. A wedge kit adds 15 degrees of angle.\nFull color night vision! Examples below comparing SkyBell HD to a competing product.\nAll SkyBells are built for over the air updates so further optimization is coming!","domain":"optical_engineering"}
{"url":"http://is.earsel.org/workshop/11-IS-Brno2019/programme/tutorials-excursions/tutorials-lop/","date":"2021-12-09T12:34:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964364169.99/warc/CC-MAIN-20211209122503-20211209152503-00465.warc.gz","language_score":0.8345385789871216,"token_count":270,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__129674309","lang":"en","text":"Laboratory measurements of leaf and soil optical properties\nTutor: Petr Lukeš and Miroslav Pikl (CzechGlobe)\nTutorial description: In this tutorial participants will learn how to measure leaf and soil optical properties in laboratory conditions. Participants will get familiar with instruments needed for leaf and soil spectral measurements (e.g., spectroradiometers, integrating spheres, light sources, sample tables) and measurement protocols. Participants will be divided into small groups where they will measure soil and leaf spectra in different configurations (integrating sphere, leaf-clip and contact probe). Laboratory measurements will be followed by basic post-processing to compute sample reflectance and transmittance signatures.\nRequirements: Participants need to bring their own laptops for spectra processing. No specific software is needed besides spreadsheet editor (Excel, LibreOffice or similar). Sample data and instrumentation will be provided. No previous knowledge on leaf optical properties measurement is required.\nNumber of participants: max. 10\nDate: 5 February 2019, 9:00 – 12:30\nLocation: Spectroscopic laboratory at Global Change Research Institute (CzechGlobe), Bělidla 986/4a, 603 00 Brno\nFee: Free of charge\nRegistration: Subscribe for the tutorial during abstract submission / registration via ConfTool","domain":"optical_engineering"}
{"url":"http://germanmotorparts.de/hid-xenon-lamps","date":"2020-03-29T05:59:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-16/segments/1585370493818.32/warc/CC-MAIN-20200329045008-20200329075008-00066.warc.gz","language_score":0.9252122044563293,"token_count":282,"dump":"CC-MAIN-2020-16","global_id":"webtext-fineweb__CC-MAIN-2020-16__0__139179413","lang":"en","text":"Company German Motor Parts would like to introduce our production programme High-intensity discharge lamps - HID Xenon Lamps.\nOur brand new high-intensity discharge lamps have higher contrast and brightness quality light than halogen lamps. Xenon bulbs have continuous spectrum with high luminance and high colour temperature with range from UV to visible infrared light. Likewise they use less energy and offer much longer life time, more than 3000 hrs.\nWe produce these types: D1S, D2S, D2R, D3S, D3R, D4S, D4R, however we can produce also other car lamps upon your request. These lamps are compatible with all cars and trucks using xenon headlamps. The products are homologized under EU standard E/ECE/324, E/ECE/TRANS/505, Regulation 99 by TÜV. Manufacturing is under certification EN ISO 9001:2009.\nOur production is located in Central Europe, in the Czech Republic. Our HID xenon lamps have Certificate of origin EUR1.\nWe have a modern production line and strong technique team that constantly improves manufacturing process of our HID xenon lamps. We can offer these products with our logo LightGMP or we can make parts under your brand name.\nOur Hid Xenon Lamp is a good choice for your safety and enjoyable drive.","domain":"optical_engineering"}
{"url":"https://shop.happymountain.gr/?product=uvex-contest-fm","date":"2022-05-26T23:36:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662627464.60/warc/CC-MAIN-20220526224902-20220527014902-00007.warc.gz","language_score":0.8564924001693726,"token_count":416,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__25679532","lang":"en","text":"The Contest FM by UVEX sets a new level in ski goggles. The goggle was developed over many months, in collaboration with World Cup stars, including Dominik Paris, Max Franz and Victor Muffat-Jeandet. They had one goal: set new standards in visual quality.\nThe result: a goggle with a wide design and extremely narrow frame, which creates an extra-wide field of view. You can see even more of the surroundings, in more detail. Perfect for the steepest descents or a run through the park. Special link system on the frame means Contest FM sits firmly, yet comfortably, on the face. It fits snugly into the helmet, for more comfort, freedom of movement, and improved aerodynamics. Full mirror lens reduces distracting glare, protects from bright sunlight, and creates a strong style statement. The injection moulded, decentred lens provides a distortion-free view.\nFor long-lasting fog-free protection, the lens is coated with UVEX supravision® technology.\n- Supravision®: Under test conditions, uvex supravision® coating stayed fog-free for a whole 60 seconds. For even more safety and the clearest view, even in bad weather.\n- Decentered lens technology: Distortion and warping in the field of view can be distracting. That’s why UVEX uses class 1 injection-molded decentered lenses to deliver distortion-free, clear vision.\n- UV protection – uv-ex = ultraviolet excluded: UV absorption is built directly into the raw material and filters 100 % UV rays up to 400 nm. All lenses provide 100 % UVA, UVB and UVC protection – the basis for the company name: uv-ex = ultraviolet excluded.\n- Double lens spheric\n- Climate membrane\n- Norms: 100% UVA, UVB, UVC protection EN 174:2001\n- Weight: 149g","domain":"optical_engineering"}
{"url":"https://ijsr.in/article-description.php?id=K2lySXpJQ1BqRWNxZDZ4R0tnbHdyQT09","date":"2024-04-14T04:42:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816864.66/warc/CC-MAIN-20240414033458-20240414063458-00650.warc.gz","language_score":0.9178637266159058,"token_count":199,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__156384462","lang":"en","text":"Segmenting blood vessel from the retinal image is important for detecting many retinal vascular disorders. Diseases\nwhich are all affecting the blood vessels of the eye are known as Retinal vascular disorders. Vessel separation of retinal image\nis a fundamental step in finding the affected area of vascular. Some of the disorders of retinal vascular are Diabetic\nRetinopathy (DR), Hypertensive Retinopathy, Retinal Vein Occlusion (RVO), Central Retinal Artery Occlusion (CRAO), and\nGlaucoma. For identifying diseases and changes in the retina Retinal Blood Vessel Separation (RBVS) is important. For\nsegmenting the blood vessel and early detection of these disorders many different approaches and algorithms have been\ndeveloped; few of them were discussed in this paper. In this paper, various existing approaches, methodologies, and algorithms\nfor separating the vessels from the retinal image were analyzed.","domain":"optical_engineering"}
{"url":"https://casite-746751.cloudaccess.net/docs/6kocc/b38a8c-what-can-you-see-with-an-8-inch-dobsonian-telescope","date":"2021-04-23T12:16:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039617701.99/warc/CC-MAIN-20210423101141-20210423131141-00079.warc.gz","language_score":0.9291391372680664,"token_count":990,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__258856025","lang":"en","text":"You may need to take into consideration and portability - These telescopes can get heavy and depending on your location you may want to pack it up in the car and take it out to darker skies. The Meade 8\" LX90-ACF Advanced Coma-Free (ACF) optical system takes all of the features of the Meade SC models and then ups the ante. This is because during the daytime - atmospheric turbulence doesn't allow a larger telescope to fully utilize its resolving power. Plus, a closed tube significantly helps keep the optics clean. Deep sky objects (DSO) is a general name for galaxies, nebulae and star clusters - objects beyond our solar system. When I use an 11mm Plossl eyepiece (almost 200x magnification) for example, I can easily see the Cassini Division in Saturn's rings. It is specially designed to provide you with a smooth and accurate performance. In this particular example - The Great Andromeda galaxy through a large telescope : Effects of light pollution on fainter DSO such as distant galaxies will be even more dramatic. When I look at Jupiter, the pale orange color of Jupiter's famous Great Red Spot is visible, and I've even been able to identify the polar caps and spot dust storms on the planet Mars. Most of the deep sky objects are really faint and a beginner will have a hard time trying to see fine details or resolve the faintest objects. As you can see - many fainter galaxies become invisible in areas with stronger light pollution: If you plan to observe deep sky objects from an area with a moderate light pollution - it is best to concentrate on objects like open clusters, double stars, brightest of the emission nebulae and also some bright planetary nebulae (due to their high surface brightness). Asteroids are rocky objects in inner solar system, and through a telescope the biggest of them appear as simple stars. And a low power 32mm Plossl eyepiece is a good choice for views of larger deep space highlights like the Andromeda Galaxy and the Orion Nebula. They put money into the optics which is where the money needs to go! template left */ As you can see in the following example - the planetary discs look really small through an eyepiece. Living in a light polluted urban area does not mean you can't observe the deep sky. Schmidt-Newtonian corrector lenses and mirrors are individually figured to create a superior optical system which is renowned for its exquisite smoothness and performance. There are 8 planets in our solar system you can observe, however only three of them will show notable surface details: Jupiter, Saturn and Mars (mostly during opposition). Another factor affecting our ability to observe DSO is sky darkness, and it is even more important than aperture. This size and type of telescope has been pretty much perfected and been around for a long time. If price is a concern but you still want to get it reasonably light then go with a dobsonian. Aperture is the diameter of the objective lens or a mirror - it defines how much light the telescope gathers and its maximum magnification (resolution). google_ad_client = \"pub-1262100336529291\"; At low magnifications it will look approximately the same through any telescope. Most of the deep. If you observe in the middle of a big, light polluted city - even owning a huge, 100000$ telescope won't help. If you are a serious hobby astronomer, want to take fantastic pictures or are looking for your second and bigger telescope the 8 inch size is a good choice for you. A 6 inch scope is a great beginners scope. MEADE 0805-05-02 Lightbridge Truss Tube Dobsonian with 8 - This Meade telescope is comparable to the Orion but with the Lightbridge truss tube set up it is significantly lighter and easier to transport. Celestron NexStar 8 SE Telescope w/ Fork Arm Mount and 40,000 + Object Database - Demo Model Celestron's Nexstar 8 SE telescope combines excellent optics and computerized \"GoTo\" tracking in a package that's light, portable and affordable. The following images show comparison of how Jupiter and Saturn should look in different instruments, at their highest useful magnifications: In order to see fine planetary details - the telescope, apart from quality optics and sufficient aperture - must be properly collimated and, in case of larger apertures, properly cooled. Also color differences between some pair provide an impressive sight. These stars will still look \"dot like\" but instead of a single star - you will see two or more placed closely together. 8 inch would be even better but 6 is good. You should make sure it has a 2\" focuser. For more examples visit a gallery in \"sketches of deep sky\" section. If observed over a period of several months/years - some pairs will show noticeable change of relative position.","domain":"optical_engineering"}
{"url":"https://www.pixaria.com/is-violet-refracted-more-than-red/","date":"2022-12-09T09:44:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711394.73/warc/CC-MAIN-20221209080025-20221209110025-00467.warc.gz","language_score":0.9387993812561035,"token_count":1395,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__142531205","lang":"en","text":"The shorter the wavelength of the light, the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most – causing the coloured light to spread out to form a spectrum.\nWhich Colour has more refractive index red or violet?\nSo, red has the lowest refractive index among the colors in “VIBGYOR”. But v=λ. The colour of light or the wave having a higher wavelength will get refracted less. So, red with a higher wavelength gets refracted lesser than violet which has a comparatively higher wavelength.\nDoes red or violet diffract more?\nIn the visible wavelengths of the electromagnetic spectrum, red, with the longest wavelength, is diffracted most; and violet, with the shortest wavelength, is diffracted least. Because each color is diffracted a different amount, each color bends at a different angle.\nWhich colour has highest frequency?\nViolet waves have the highest frequencies.\nWhich color light travels faster in vacuum?\nViolet travels the slowest so it is on the bottom and red travels the fastest so is on the top. This is because what is called the index of refraction, (the ratio of the speed of light in a vacuum to the speed of light in a material), is increased for the slower moving waves (i.e. violet).\nWhy red is the least bent and violet the most bent?\nEach beam of light, with its own particular wavelength (or color), is slowed differently by the glass. Since violet light has a shorter wavelength, it is slowed more than the longer wavelengths of red light. Consequently, violet light is bent the most while red light is bent the least.\nWhy does red color deviates the most in case of grating?\nQ. Why does red color deviate the most in case of grating? A. This is so because in case of grating sin θ=n λ/(e+d) i.e angle of diffraction is proportional to the wavelength and the wavelength of red is maximum.\nWhy does violet deviate the most?\nViolet is bent the most and red the least because violet light has a shorter wavelength, and short wavelengths travel more slowly through a medium than longer ones do. Because white light is made up of ALL visible wavelengths, its colors can be separated (dispersed) by this difference in behavior.\nWhat is the strongest color?\nRed is the most powerful color amongst all. It has a tendency to stimulate mind and attract attention.\nWhat color Is Fastest?\nNorwegian scientists claim color blue is the fastest color.\nWhich color has highest and lowest frequencies?\nWhen it comes to visible light, the highest frequency color, which is violet, also has the most energy. The lowest frequency of visible light, which is red, has the least energy.\nDoes red light travel faster than blue?\nIn air, glass, water and many other transparent materials, red light travels faster than blue light.\nWhich colour has highest velocity in vacuum?\nThe colour violet has the highest velocity in vacuumNov 2, 2018.\nWhich color travels slowest in glass prism?\nRed colour travels fastest and Blue colour travels slowest in glass.\nIs red the least scattered?\nLight is dispersed by tiny air particles as it enters the atmosphere. Light scattering is proportional to the wavelength’s fourth power. Because red light has the longest wavelength of all visible light colors, it is the least dispersed.\nWhich Colour is refracted the least?\nThe shorter the wavelength of the light, the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most – causing the coloured light to spread out to form a spectrum. This is called dispersion .\nWhy does red light travel faster in glass?\nTherefore, by the refractive index formula, the wavelength of light is directly proportional the speed of light in the medium. Therefore, the speed of red light will be greater than the violet. Therefore, in glass the red light will travel faster than the violet light.\nWhy does red light diffract more?\nIn short, the angle of diffraction is directly proportional to the size of the wavelength. Hence red light (long wavelength) diffracts more than blue light (short wavelength). And radio waves (really long wavelength) diffract more than X-rays (really short wavelengths).\nWhy is red color always seen on top while blue is at the bottom of a rainbow?\nWhen we see a rainbow, sunlight is being refracted by tiny raindrops in the sky. The colors we see always go from red, which is least refracted, through orange, yellow, green, blue, indigo and violet — Roy G Biv. The blue, indigo and violet wavelengths are refracted the most as sunlight passes through raindrops.\nDoes green light diffract more than red light?\nThe amount of diffraction depends on the wavelength of light, with shorter wavelengths being diffracted at a greater angle than longer ones (in effect, blue and violet light are diffracted at a higher angle than is red light).\nWhich colour deviates most in dispersion?\nThe color red therefore deviates the least since it has maximum wavelength and color violet deviates the most since it has the least wavelength.\nWhy does violet light deviates more than red light?\nViolet colour deviate most and red deviate the less because the wavelength of a red light is almost double the wavelength of violet light. But since the violet light has a shorter wavelength, it would refract more than the longer wavelength red light.\nWhy does red light deviate the least?\nRed has the highest wavelength and violet the lowest. Wavelength is inversely proportional to the deviation in the path of the light. The color red therefore deviates the least since it has maximum wavelength and color violet deviates the most since it has the least wavelength.\nWhat is the ugliest color in the world?\nAccording to Wikipedia, Pantone 448 C has been dubbed “The ugliest colour in the world.” Described as a “drab dark brown,” it was selected in 2016 as the colour for plain tobacco and cigarette packaging in Australia, after market researchers determined that it was the least attractive colour.\nWhat color attracts the human eye most?\nThe green color was created by analyzing the way the rods and cones in our eyes are stimulated by different wavelengths of light. The company found that the human eye is most sensitive to light at a wavelength of 555 nanometers—a bright green.\nWhat color is most weakest?\nWhite is the weakest color. This is due almost entirely to the rise in prominence of fast combo.","domain":"optical_engineering"}
{"url":"http://www.jghoskins.com/research/","date":"2017-08-19T20:20:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886105922.73/warc/CC-MAIN-20170819201404-20170819221404-00690.warc.gz","language_score":0.9023020267486572,"token_count":574,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__155825697","lang":"en","text":"Inverse problems are a ubiquitous feature of interdisciplinary mathematics, arising in many physical, biomedical, geological and astrophysical problems. I am particularly interested in inverse problems associated with optics, both classical and quantum, in random media. This involves formulating accurate mathematical models of imaging modalities, developing methods for image reconstruction, and creating computationally efficient algorithms for imaging.\nDiscrete diffuse optical tomography\nI considered a discrete analog of diffuse optical tomography, studying the time-independent diffusion equation on a graph with boundary in the presence of a non-uniform vertex potential. In two papers I analyzed both the forward problem (solving the equation given the potential) and the inverse problem (recovering the potential given boundary data). For the forward problem I developed and analyzed a perturbative approach based on a discrete version of the Born series, formulating necessary conditions for the convergence of my method and using techniques from representation theory, physics and combinatorics to apply it to many families of graphs. For the inverse problem, I inverted the series used to solve the forward problem, obtaining a reconstruction algorithm based on a discrete version of inverse Born series. Using methods from several complex variables and degree theory I obtained sufficient conditions under which the inverse Born series converges to the true vertex potential.\nAcousto-optics in random media\nThe acousto-optic effect refers to the scattering of light from a medium whose optical properties are modulated by an acoustic wave. Previously, I worked on developing a first-principles theory of the acousto-optic effect in random media. I am currently working on solving the corresponding hybrid inverse problem both for radiative transport and the diffusion.\nFast solvers for radiative transfer equations\nThe propagation of electromagnetic waves in random media over long distances is frequently modelled by radiative transfer equations (RTEs). I developed an algorithm for solving RTEs in piecewise homogeneous media via volume integral equations (VIEs). By discretizing the VIEs pertaining to RTEs using truncated harmonic angular expansions and spatial pulse functions defined on a Cartesian spatial grid, I was able to use the free-space vacuum RTE Green function in conjunction with this basis to obtain Toeplitz operators that can be efficiently generated, stored, and applied. Currently I am developing a surface integral solver for the RTE in piecewise constant media.\nQuantum optics in chiral and bi-directional waveguides\nWe are looking at the problem of single-photon propagation in many-atom waveguide QED systems with disorder. I am interested both in numerical simulations of photons in quantum qubit chains as well as waveguide QED systems in the continuum limit, increasing the density of atoms while simultaneously decreasing their coupling to the electro-magnetic field.","domain":"optical_engineering"}
{"url":"https://youngkit.com/products/schott-0-15ar-anti-reflective-screen-protector-for-iphone-13","date":"2023-11-30T14:36:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100227.61/warc/CC-MAIN-20231130130218-20231130160218-00863.warc.gz","language_score":0.8757932782173157,"token_count":231,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__131584333","lang":"en","text":"Superior Process And Materials\n0.2AR Anti-Reflective Screen Protector is made with advanced manufacturing techniques, including multiple polishing and grinding procedures. Its light transmittance reaches as high as 96.5%±1, which is 3.3%±1 higher than other high-definition tempered glass screen protectors on the market.\nAR core technology enables the anti-reflectivity to be less than 0.6.\nWe is striving to make resources 100% recyclable, so as to contribute to protect our Planet.\nSuper Crystal Ceramic Hardening Technology\nThe surface of 0.2AR Anti-Reflective Screen Protector is treated with a special super crystal ceramic technique, which creates a uniform micro-texture. This enhances its ability to resist scratches, wear and tear, water, oil, fingerprints and other issues.\nAnti-Blue Light，More Comfortable\n0.2AR Anti-Reflective Screen Protector features blue light blocking function, which effectively filters out harmful blue light and reduces eye irritation. This feature protects your eyes and allows you to use your electronic devices comfortably and safely.","domain":"optical_engineering"}
{"url":"http://www.testo-thermal-imagers.com/thermal-imager.html","date":"2014-10-23T02:15:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-42/segments/1413507449153.0/warc/CC-MAIN-20141017005729-00185-ip-10-16-133-185.ec2.internal.warc.gz","language_score":0.8686134219169617,"token_count":405,"dump":"CC-MAIN-2014-42","global_id":"webtext-fineweb__CC-MAIN-2014-42__0__4265217","lang":"en","text":"Item Code :\nThe Testo 882-Thermal Imagers in ergonomic pistol design, with 320 x 240 pixels. With 76,800 temperature measuring points in every Image, it sees every detail on the measured object. This makes it easier to detect anomalies and weaknesses from greater distances.\nSalient Features of the Thermal Imager 882 are as under\n- Affordable Thermal Imager\n- Detector size 320 x 240 pixels: With 76.800 temperature measurement points, the measurement objects are detected in excellent image quality, very clearly and precisely.\n- Super Resolution technology to 320 x 240 pixels: Super Resolution technology improves the image quality by one class, i.e. the resolution of the thermal images is four times higher.\n- Temperature range of -20° to 350° C\n- Thermal sensitivity < 60 mK: Thanks to an excellent temperature resolution of < 60 mK, even the smallest temperature differences are visible.\n- High quality standard lens 32° x 23°\n- Automatic Hot/Cold Spot Recognition\n- Large field of view thanks to 32° lens: With the lightweight 32° wide-angle lens, large image sections are immediately recognized, and the temperature distribution of the measurement object recorded at a glance.\n- Solar mode: For each measurement, the sun irradiation value can be entered into the camera. This value is stored for each thermal image\n- Special measurement mode for detecting areas with danger of mould: Using the externally measured ambient temperature and air humidity, as well as the surface temperature, the humidity value of each measurement point is calculated and shown in the display as a real humidity image.\n- High temperature up to 550°C: With the high temperature option, the measuring range can be flexibly extended up to 550°C.\n- Integrated digital camera: Power LED's\n- Voice recording using headset\n- Motor Focus for one hand operation\n- Isotherm display in instrument\n- Min/Max on Area calculation\nTypical applications include","domain":"optical_engineering"}
{"url":"https://7esl.com/photography-vocabulary/","date":"2024-02-28T10:38:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474700.89/warc/CC-MAIN-20240228080245-20240228110245-00556.warc.gz","language_score":0.9264899492263794,"token_count":1379,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__42952294","lang":"en","text":"Whether you work in the photography industry or not, knowing the English terms used in this field can be of great benefit to you. For example, there are many mobile apps which centre around photography such as Instagram and various special effects apps. Understanding the different parts and types of cameras can be a daunting task, especially for beginners. However, having a basic understanding of camera vocabulary is essential to taking great photos.\nTypes of Camera\n- SLR camera\n- Digital camera\n- APS camera\n- Instant camera\nDifferent Parts of a Camera\n- Lens cap\n- Zoom lens\n- Flash unit\nLearn different parts of a camera and different types of camera to improve your English.\nTypes of Camera\nAn SLR camera (Single Lens Reflex) is a type of camera that uses a mirror and prism system to allow the photographer to see through the lens and accurately frame the shot.\n- Example: The photographer used his SLR camera to capture stunning landscape photos during his trip.\nA digital camera is a camera that captures and stores images electronically, rather than on film. It uses a digital sensor to convert light into pixels, which are then processed and stored on a memory card.\n- Example: The tourist used her digital camera to take photos of the beautiful scenery during her vacation.\nAn APS camera (Advanced Photo System) is a type of film camera that uses a specific type of film cartridge and offers various features such as different print formats, date/time stamping, and automatic film rewinding.\n- Example: The photography enthusiast preferred using an APS camera for its versatility and ease of use.\nAn instant camera is a camera that produces a physical print of the photo immediately after it is taken. It uses a self-developing film that produces a visible image within a few minutes of exposure.\n- Example: The party guests had fun taking photos with the instant camera and sharing the prints with each other.\nDifferent Parts of a Camera\nA lens is a piece of curved glass or plastic that is used in cameras, telescopes, and other optical devices to focus light and form an image.\n- Example: The photographer changed the lens on his camera to capture a wider angle of the landscape.\nA lens cap is a protective cover that is used to protect the lens of a camera or other optical device from dust, scratches, and other damage.\n- Example: The photographer always makes sure to put the lens cap back on after using the camera to protect the lens from damage.\nA tripod is a three-legged stand that is used to support a camera or other equipment to keep it steady and reduce camera shake.\n- Example: The photographer set up the tripod to keep the camera steady while taking a long exposure shot of the night sky.\nA zoom lens is a type of camera lens that has a variable focal length, allowing the photographer to adjust the magnification and field of view of the image.\n- Example: The wildlife photographer used a zoom lens to capture a close-up shot of the eagle perched on a tree branch.\nA flash unit is a device that produces a burst of bright light to illuminate a subject or scene when taking a photo or recording a video in low light conditions. It can be built into a camera or attached externally.\n- Example: The photographer attached a flash unit to his camera to capture well-lit photos of the wedding reception.\nTools and Equipment Vocabulary\nList of tools & equipment classified by different categories.\nHousehold items list:\n- List of kitchen utensils and kitchen tools with pictures.\n- Household tools, devices and equipment in English.\n- Household appliances vocabulary words list.\n- Household cleaning supplies in English.\nOther tools, devices, appliances and equipment:\n- List of tech gadgets in English.\n- Laboratory equipment with pictures.\n- List of musical instruments in English.\n- Photography vocabulary words list.\n- List of stationery items and office supplies in English.\n- List of tools with pictures.\n- Gardening tools vocabulary words list.\nFrequently Asked Questions\nWhat are the main components of a camera?\nA camera consists of several main components, including the lens, sensor, shutter, viewfinder, and image processor. The lens captures light and focuses it onto the sensor, which records the image. The shutter controls the amount of time the sensor is exposed to light, and the viewfinder allows you to see what you are photographing. The image processor then converts the data from the sensor into a digital image.\nWhat are some common camera parts and their functions?\nSome common camera parts include the aperture, ISO, and white balance. The aperture controls the amount of light that enters the camera, while the ISO determines the camera’s sensitivity to light. White balance adjusts the color temperature to ensure accurate color representation.\nWhat are the different types of cameras and their features?\nThere are several types of cameras, including point-and-shoot, mirrorless, DSLR, and action cameras. Point-and-shoot cameras are compact and easy to use, while mirrorless cameras offer interchangeable lenses and high-quality image capture. DSLR cameras provide advanced features and manual controls, while action cameras are designed for capturing footage in extreme conditions.\nWhat are some important camera vocabulary words to know?\nSome important camera vocabulary words to know include aperture, ISO, shutter speed, focal length, and exposure. Aperture refers to the size of the opening in the lens that lets light in, while ISO measures the camera’s sensitivity to light. Shutter speed controls the amount of time the shutter is open, while focal length determines the distance between the lens and the sensor. Exposure is the amount of light that reaches the sensor.\nWhat are some key differences between DSLR and SLR cameras?\nDSLR cameras and SLR cameras are similar in many ways, but there are some key differences. DSLR cameras are digital and offer advanced features such as autofocus and image stabilization. SLR cameras use film and require manual focus and exposure adjustments.\nWhat are some tips for identifying and troubleshooting camera issues?\nIf you are experiencing issues with your camera, start by checking the battery and memory card. Ensure that the lens is properly attached and that the camera settings are correct. If the issue persists, consult the camera manual or seek assistance from a professional.\nLast Updated on November 10, 2023\n- Clam vs. Oyster: Difference between Oyster and Clam - December 25, 2023\n- Leniency Meaning: What Does “Leniency” Mean? - December 15, 2023\n- Rapport Meaning: What Does the Term “Rapport” Mean? - November 28, 2023","domain":"optical_engineering"}
{"url":"https://www.innolight.com/index.php/en/news/newsinfo/cid/143.html","date":"2023-03-30T07:29:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949107.48/warc/CC-MAIN-20230330070451-20230330100451-00332.warc.gz","language_score":0.8539206981658936,"token_count":735,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__29513224","lang":"en","text":"Recently, InnoLight Technology, a company that\nprovides solutions for high-speed optical interconnections, released the ultra\nlow-power 100G QSFP-DD first in China and 400G QSFP-DD ZR/OpenZR+ coherent\noptical modules with the smallest package size in the industry.\nThe 400G ZR and OpenZR+ QSFP-DD coherent optical modules utilize advanced technologies, such as low-power digital signal processing (DSP), narrow-linewidth tunable ITLA, and silicon photonics integration. These products have the advantages of small size, low power consumption and high performance. The maximum power consumption is less than 18W, and the character of interconnection between modules of the same type is supported, which means the 400G ZR modules can be interconnected in CFEC mode, it is same to 400G OpenZR+ modules in oFEC mode. They are mainly used in Data Center interconnections (DCI) and metro area(MR). As for the 400G OpenZR+ modules, the transmission distance can reach up to 500 kilometers. According to data of Cignal AI (a market research company), the shipment volume of the 400G ZR and OpenZR+ coherent optical modules will increase with the compound annual growth rate (CAGR) of greater than 100% by 2025.\n400G QSFP-DD ZR/ZR+\nThe 100G QSFP-DD coherent optical module with ultra-low power consumption character supports the SCFEC/GEC/OFEC forward error correction(FEC) technologies and has good interconnection performance. Its optical components utilize advanced silicon photonics integration, feature in low insertion loss, high bandwidth, and low costs, and can meet different market requirements. Its excellent dispersion compensation capability makes it suitable for 80 km to 200 km 5G backhaul and dense wavelength division multiplexing (DWDM) of edge aggregation networks and DCI.\n100G QSFP-DD ZR+\nThe high-performance 400G CFP2 DCO coherent optical module utilizes high-performance 7 nm DSP and has powerful Probabilistic Constellation Shaping (PCS) capabilities, which greatly improves the optical signal-to-noise ratio (OSNR) sensitivity and error code correction capabilities. It utilizes high-bandwidth silicon photonic components that use BGA packaging to provide the performance same as that of InP components. Lab results have proven that the 400G CFP2 DCO coherent optical module supports transmission distance of 1000 km or longer.The module has excellent performance and can be widely used in metro, optical transport network and DCI.\nHigh-performance 400G CFP2 DCO\nInnoLight is engaged in R&D, design, packaging, testing, and sales of high-end optical communication transceiver modules, provides 100G, 200G, 400G, and 800G high-speed optical modules to cloud data center customers, and provides telecommunication customers with 5G optical modules and high-speed optical interconnection solutions applied in the transmission field. Headquartered in Suzhou, China, InnoLight has R&D bases, production bases and sales centers in Tongling, Anhui, Chengdu, Sichuan, Silicon Valley, USA, Singapore, Taiwan and Southeast Asia. For more information, please visit www.innolight.com.\nPowered By VTHINK","domain":"optical_engineering"}
{"url":"https://mycruiserlife.com/best-marine-binoculars/","date":"2023-11-30T17:42:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100229.44/warc/CC-MAIN-20231130161920-20231130191920-00678.warc.gz","language_score":0.9415085911750793,"token_count":6639,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__42564142","lang":"en","text":"It’s hard to imagine a sea-faring captain standing at the helm of his tall ship and barking orders to his swabs, without seeing a collapsable brass telescope, or spyglass, in his hand.\nWe sail small ships these days, and we usually have fewer swabs to order around. But we do keep a brass telescope close at hand. Well, not really. There have been a few technological advances in the last 300 years. Today, the modern equivalent is the ever-trusty and reliable marine binoculars.\nTable of Contents\n- Why are Binoculars for Boaters Important?\n- Understanding Binocular Specs\n- Features to Zoom-In On – Best Binoculars for Boating\n- How to Choose Marine Binoculars\n- Best Boat Binoculars Brands\n- A Few Marine Binoculars Reviews\n- The Marine Binocular – A Important Part of Your Skipper’s Toolkit\n- Binoculars for Boating FAQs\nWhy are Binoculars for Boaters Important?\nSo, what are we always so busy looking at? In general, everything! From the deck of a moving boat, small details easily blur together, and it becomes difficult to focus on distant objects. Binoculars help us spot tiny distant objects with ease.\nGeneral Boat Binoculars\nAll boaters use binoculars to some extent. There are three primary purposes that this captain can think of, but your mileage may vary.\n1. Collision Avoidance\nThe rules of the road clearly state that every vessel must maintain a proper look-out, by sight and sound, to ensure that they do pose a collision hazard to other vessels. To this end, binoculars are of huge help.\nWhile on watch, you’ll often see some clue of another vessel on the horizon. Perhaps it is a bit of smoke trailing behind a container ship or the sails of a sailboat of different types. Your binoculars will likely resolve the object for a positive identification, and you can usually get an idea if it’s headed in your direction much sooner.\nThis is doubly true at night. Ships and boats carry navigation lights for the same purpose–to make them visible and to help you identify if they pose a collision hazard or not. But at night, it can be impossible to tell the difference between a huge ship 20 miles away and a small boat 2 miles away. The only way to solve this is with binoculars.\nFurthermore, many vessels have other lights on their decks and shining out their windows. Binoculars will help you determine where the vessel’s navigation lights are and which colors you see. Then, you can determine if you need to take evasive action or not.\n2. Landmarks and Navigation\nJust like boats, landmarks can be difficult to see. Sea buoys and markers on pilings are probably the most often searched for items with a pair of ocean binoculars. You’ll be making way towards some point marked by one of these things, and you’ll want to see it visually to confirm what the charts and GPS are telling you. Also, you might need to turn off your sailboat autopilot to get there faster.\nIn the case of a large sea buoy, you can usually see them with the naked eye from about a mile away. On days with rough seas, it might be very hard to see it, however. Binoculars can extend that range to three miles or more and help you spot it on the waves.\nDaymarkers on inshore waterways are also hard to spot. They easily blend in with the land in the background, making it very hard to spot until you’re right on top of it. Since these daymarkers are your primary navigation method that also helps to avoid boat accidents, it’s vital that you see them as soon as possible and don’t get confused between different markers.\nBeyond just spotting the marker, knowing precisely which marker you’re looking at is important. You see a green buoy, but is that Green 3 or Green 1? The difference might mean being safely in the channel and being aground for a few hours. There’s no way you’ll be able to tell the difference between “3” and “1” without an excellent pair of boating binoculars.\n3. Looking at Cool Stuff\nThis one might not sound too “captainy,” but it’s the truth. Binoculars are fun to have aboard so you can look at cool stuff. Dolphins playing in the distance, rare birds wading in the shallows, or bonefish finning off the beach are some natural examples. Or maybe you’re sharing the harbor with a beautiful yacht or a sailboat, and you are trying to make out its name to look it up online later and see who owns it. Or maybe you’re cruising offshore and a nearby fisherman hooks into a sailfish, and you want a front-row seat to the action. Maybe it’s after dark you want to enjoy that full moon a little closer.\nThe options are nearly limitless, and they’re all up to the skipper and crew. Our binoculars stay at the helm 24/7, always within reach for whatever it is we want them for.\nSailors need a good pair of binoculars and a good pair of sunglasses for boating to help them perform the same tasks. In general, a pocket cruiser sailboat may spend more time offshore, so they may be more interested in looking at landmarks to make the right landfall.\nFar offshore, landmasses provide great information to support your other navigation techniques. For example, you may have dead reckoned your way across Chesapeake Bay, but you won’t have a positive idea of where you are until you can identify something on land and match it with something on the chart. For this reason, charts include all sorts of details about the highest points, topography, towers, and tall buildings. If you see something and positively identify it, you can take a bearing and plot your position. All without GPS–how cool is that?\nOffshore fishing boats rely on their binoculars to home in on the fish. Finding fish is often a difficult search that involves looking for tiny clues as to their location–flocks of birds fishing, baitfish disrupting the surface, or weed lines and other floating structures. Binocs help the fishing skipper find those things from a distance.\nUnderstanding Binocular Specs\nBinoculars have been around as long as telescopes have been. The first examples are known as Galilean binoculars because they mimic the operation of early telescopes developed by Galileo. This design is still used in opera glasses and inexpensive field glasses.\nThe primary problem with a binocular is that it must resolve the image right side up. Most cameras and telescopes leave the image inverted since there is no need to flip it around. Most binoculars today invert the image using an optical prism.\nThe basic design of binoculars includes a large objective lens on the outside. The light then enters and passes through the prism, where it is inverted and directed at a group of lens elements known as the eyepiece.\nGetting the Right Magnification\nBinoculars come in various configurations, each suited to a particular use. Understanding the differences will help you find the best binoculars for boating or the best binoculars for sailing. In addition, binoculars differ in their magnification and the amount of light they let in.\nBinoculars are described by two numbers, i.e., 7×50 or 10×30. And just like sail numbers, they have a meaning.\nThe first digit is the magnification offered by the optics. For example, a 7x pair of binocs provides seven times magnification. Magnification factors usually range from 5 to 20, or sometimes even more.\nMore is better, right? Unfortunately, in the case of binoculars, things can get out of hand pretty fast. Think about the various uses for binoculars–birding, astronomy, hunting, or sightseeing. In most instances, the binocs could be mounted on a tripod for stability. Without something to stabilize them, the image will become shakier and shakier as the magnification increases.\nIt’s vital to understand this aspect of telescopes and binoculars–and how it will affect someone on a moving boat. Yes, you want to have high power to magnify things in the distance. But if you choose a pair with too much magnification, you won’t be able to see anything because the image will be bouncing all around.\nA few binoculars on the market allow you to adjust the amount of magnification. These might be described as 10-30×50 or 8-24×25.\nThe second number (located after the “x”) is the diameter of the biggest lens element in millimeters. This is important because a bigger lens will let in more light. More light will help you resolve images in darker situations.\nA 10×30 pair of binoculars has a magnification factor of 10, and the outer lenses have a diameter of 30mm. They have high magnification but are only suitable in bright daylight situations. These would make excellent birding or hunting binoculars on solid ground.\nHere’s another example–let’s look at a pair labeled “25×100.” These are extremely high-powered and let in an enormous amount of light. But they’re also physically enormous–they’d need to be mounted on a tripod to be used. They’re the sort of optics you’d use for astronomy or perhaps for permanently-mounted long-distance observing stations you see at parks and scenic overlooks.\nStandard Marine Binoculars 7×50\nSo, what are the best binoculars for boating? The industry standard is 7×50. These have enough magnification to help you resolve distant boats, landmarks, and ATONs. But they don’t have so much power that you can’t easily see through them while hand-holding them on the deck of a moving boat with a perfect wind speed.\nThe 50 mm objective lenses let in a fair amount of light, while still being small and light enough to use on the fly. They’re good in dim situations and even after dark for identifying lighted navaids and ship navigation lights on the horizon.\nThis isn’t a hard rule–think of it as an extremely well-tested rule of thumb. You might want more magnification, especially if you invest the money in a pair with fancy image stabilization technology. You might also want to let in more light if, for example, you’d like to use your binocs more after dark.\nField of View\nAnother specification you may see listed for binoculars is the field of view. This is the amount of the horizon, measured in degrees that you can see in your binoculars.\nThe field of view decreases proportionally as magnification increases. In other words, the higher the magnification, the less of the horizon you can see.\nIn boating, having a small field of view is a negative, just like having a high magnification is. The reason is that the smaller field of view moves around too much as you move on the boat, making it impossible to lock in on the object you want to see.\nField of view is usually expressed in terms of how many feet across the image is at 1,000 yards. For example, a 7×50 pair of binoculars may present an image of 372 feet at 1,000 yards. It may also be stated angularly, in which case it would say it shows a three-degree field of view.\nHere’s one more interesting thing about the specifications of binoculars. From the magnification and the size of the objective element, it is possible to interpret a measure called relative brightness. It is beneficial to have the brightest image possible while on the water–especially after dark.\nTo calculate the relative brightness, take the square of the objective lens diameter over the magnification power. So, for example, 7×50 binoculars have a relative brightness of 50, while 8×23’s relative brightness would only be 8.2.\nFeatures to Zoom-In On – Best Binoculars for Boating\nBinoculars are not particularly complicated items. But like cameras and telescopes, if you are not familiar with the language of lenses and elements, optical coatings, and focal lengths, then the options available for a pair of boat binoculars can be daunting.\nTypes of Binocular\nBy definition, a pair of binoculars are two telescopes mounted side-by-side to provide three-dimensional vision through both eyes. But there are actually many different styles of binoculars, some with special, specific purposes. For example, opera glasses are a specialized style of binoculars. Those pedestal-mounted distant-viewing stations at national parks are another example.\nThe optical groups of binoculars include prisms. These bend the light and correct the final image to be right-side-up in the eyepieces. The two most common types of prism are Porro and roof prism.\nThe Porro prism system is the most common setup in the best boating binoculars. These can be identified by a shorter and wider design that is easy to hand-hold. In Porro prism binocs, the objective lens elements are offset outwardly from the central eyepieces. The light follows a Z-shaped path from the objective lens to the eyepiece inside the prisms.\nRoof prism binoculars are longer overall as their prisms refract the image in a straight line. Therefore, they are narrower, slightly lighter, and more compact than a Porro prism. Unfortunately, they also must be made to tighter tolerances, so roof prisms are usually the most expensive.\nFor the end-user, it’s unlikely that you’d notice the difference between the two types beyond their physical appearance. When integrated into a quality pair of binocs, both produce outstanding images. But both require being built and adjusted to tight tolerances.\nYou’ll also find prisms made of two grades of glass–BK-7 and BAK-4. The BK-7 uses boro-silicate glass. The higher-end BAK-4 uses barium crown glass with less light scattering properties and produces sharper images.\nBuild Quality and Waterproof Designs\nOne of the most obvious things that differentiate ocean binoculars from those built for other purposes is the way they are constructed. For example, many marine binoculars are made to be completely waterproof. Some are even designed to float if dropped in water.\nThis might not sound that important–we are careful with our binocs, and we don’t swim with them. But consider the life of anything on a boat – surrounded by water and possibly used during rain. And there’s the constant threat of an errant wave sending a deluge of water into the cockpit. Stuff happens.\nSince they’re a big investment, look for the best-built and best-protected binoculars you can find. Shockproof metal designs with rubberized coatings are best. Floating binoculars are probably a gimmick, though, so focus on waterproof and rugged models that look like they’ll stand some regular use and occasional abuse.\nLike camera lenses, the glass used in the inner workings of your binoculars has major implications on the quality of the image you see. Cheap glass will transmit less than 50 percent of the light it receives onto your eyes–making it impossible to see objects in dim or severe storm conditions on the boat.\nThe amount of light the lens elements let through is called light transmission efficiency. The best optics, like those used by Steiner or Fuji, allow 93 percent or more of the light through.\nHowever, cheaper optics do more than just reduce the amount of light transmission. They also add astigmatic images with fuzzy edges, or add aberrations to the image. On the other hand, quality binoculars produce crisp images from edge to edge and will not strain nor fatigue your eyes.\nThe best marine binoculars also feature fully multi coated optics. The manufacturers of these binoculars use all sorts of special coatings to control the light transmission through the binoculars. These coatings are used to reduce the reflection of light and to maximize the light transmission efficiency of the package as a whole. Remember, some binoculars have as many as 16 air-to-glass surfaces making up their inner workings, each one bending the lightwaves.\nAs is often the case with optics, the best are the best, and the rest aren’t. There are many bargains to be had in binoculars–approach unknown brands with caution. The user experience you’ll get from spending a little more for a name brand like Fujinon, Steiner, or Nikon would be well worth the price.\nThe air spaces inside binoculars are sensitive to temperature changes. So when a maker says that their binoculars are “nitrogen filled,” a technique first engineered by Steiner in 1973, they mean that they are a sealed design. This eliminates the problem of inside fogging after temperature changes. Today, this feature is found on most high-end, sealed (waterproof) binoculars. It is sometimes called “nitrogen purged.”\nLike high-end camera lenses, binoculars can be equipped with gyroscopic stabilization systems. These detect and compensate for movement in the binoculars, allowing you to use a high magnification while hand-holding the lenses. For example, a good stabilization system on a moving boat means you might be able to use something with a magnification factor as high as 18x.\nBe aware, however, that stabilizers are just like optics. They are very finely-tuned instruments that must be engineered to exacting standards. The best marine binoculars with image stabilization will cost you a pretty penny, but they’re worth the price if you need to zoom in farther than 7x power.\nIntegrated Compass and Rangefinder\nTwo very helpful features in marine binoculars are the built in compass and rangefinder. Both are not found on a majority of entry-level models–so these are things you’ll want to look for on marine pairs.\nThe bearing compass may be mechanical or digital. It simply tells you the magnetic bearing in the direction you are looking. If you combine a known landmark on a chart and plot your magnetic bearing to that landmark, you can draw your line of position from the object. You can also take bearings on moving vessels to calculate if they are a collision risk.\nThe rangefinder is a simple cross-hair style marking on the lens of the binocs. Since the field of view of your binoculars is known, you can apply some simple math to calculate the distance to an object, so long as you know how tall that object is. Most marine navigation aids, like lighthouses and daymarks, have their heights published on the charts and in the Coast Guard Light List.\nHunting or golfing binoculars are often outfitted with laser rangefinders. These help since the height of objects may not be known. However, their range is insufficient to use at sea.\nFinally, if you’ll be using your bearing compass at night, you’ll want to consider a model that has an illuminated compass. These will require a battery, and you’ll switch on the light only when needed.\nBinoculars have three main types of focus systems. They may be center focus, individual eyepiece focus, or fixed focus.\nCenter focus models have a central dial that the user turns to adjust the focus. This adjusts each side of the binoculars simultaneously, allowing the user to fine-tune the image every time they look at something new.\nIn addition to the main focus knob, one eyepiece will have an adjustment in case the user has slightly different requirements for each eye.\nIndividual focus pairs have a focus adjustment on each eyepiece. This is probably the least convenient method and is best suited for binoculars used on land when you have lots of time to fine-tune your image. You’ll find individual focus on most bargain-priced pairs of binocs.\nFixed focus binoculars are an attraction option for boaters. These have a very deep depth of field, meaning that they are designed to keep pretty much everything beyond a certain distance in focus. Steiner makes fixed focus that is branded “Sports Autofocus.” It isn’t truly an autofocus system, but the functionality is the same. You can fine-tune each eyepiece for your vision, and once set, the binoculars will need no adjusting. That means you pick them up and your targets will always be crisply in focus every time.\nThe eyepieces of your binoculars will have a few traits that will make them either easy to use or difficult, depending on your eyesight and the shape of your face.\nFor one thing, nearly all binoculars pivot to adjust the pupil-to-pupil distance for different users. Therefore, when you pick up a pair of binocs, you should first ensure that you can see completely through each side without any dark edges.\nOne or both eyepieces will include a diopter adjustment, as well. This serves to fine-tune the optics for the user’s vision since most people have one eye that is slightly stronger than the other.\nThen there are some design features that you cannot control after purchasing your binoculars. The eye relief is how far you must hold the rear eyepiece away from your eyes. If you wear glasses for astigmatism, you may need a pair of binoculars with a longer eye relief to include your glasses while wearing. Many pairs include eyecups that you can fold down to help with this.\nFinally, the eyepiece will concentrate the image into an exit pupil. Ideally, this will be the diameter of the user’s pupil, which is about 3 mm during the day and 7 mm at night. If the exit pupil of your binoculars is larger than your eye, light is wasted. But since your eye will open wider at night, this allows you to use the full exit pupil in dim light.\nHow to Choose Marine Binoculars\nBest Boat Binoculars Brands\nMost binoculars come from world-famous optics producers. Most people will recognize brands like Nikon, Canon, Fuji, or Zeiss from the cameras and lenses they make. Others might recognize Bushnell, Celestron, or Meade for their astronomical telescopes.\nEither way, the best optics are produced by optics companies. They source the best glass in the world and machine it to the highest standards.\nSteiner Marine Binoculars\nSteiner is a German maker of binoculars, rifle scopes, and battle sights. They are known for their military-grade equipment, built with some of the best optics out there. The company was founded in 1964 by Karl Steiner. Their optics are still made in Germany.\nTheir marine binocular lines come in the Navigator and Commander lineups. All at 7×50 Porro prism binoculars with varying combinations of reticles and compasses. Their Sports Autofocus fixed focus system means you’ll never have to tinker with focus settings. They are all waterproof and corrosion-proof, built with rugged rubberized cases.\nWest Marine Binoculars\nWest Marine is far from an optics company, but they brand and sell their own line of boater binoculars for all purposes.\nTheir entry-level line, the Shoreline, are great budget options or for backup use. The Coastal series is a mid-range Porro prism binocular with light transmission efficiencies of over 70 percent. There are four Coastal models, ranging in price from $120 to $400. Each better model has improved optics and a better warranty to match the price point.\nBushnell is a US company that primarily makes binoculars. Their offerings are budget-priced and built for adventures–be it boating, nature, hunting, or birding.\nFor boaters, Bushnell makes the H2O and Marine lines of waterproof binoculars. You can get a pair on 7x50s for well under $100, but their optics are nothing compared to Steiner or other optics maker’s offerings.\nNikon Ocean and Marine Binoculars\nThere are few names in optics bigger than Japanese giant Nikon. They are an iconic brand name in cameras, but they also make an excellent line of binoculars. Aimed at boaters, their waterproof offerings include the Monarch HG and OceanPro brands. In addition, you can choose between compact roof prism and larger Porro prism models. These binoculars could turn into one great gift for boaters.\nFujinon is the optics company behind Fujifilm brand cameras. Their best-known marine option is their “Techno-Stabi” line of stabilized binocs. These powerful scopes have impressive specs, including one of the best gyro-stabilization systems on the market.\nFujinon also makes a few basic Porro prism binoculars for marine use called the Mariner Series, which feature excellent options at an attractive price.\nA Few Marine Binoculars Reviews\nHere’s a look at some top picks for ocean binoculars. There’s some variation here, although most have a similar magnification and size. Choose the features and price point that are most important to you.\nBest Marine Binocular – Steiner Marine Binoculars Commander 7×50 with Compass\nSteiner makes superb high end marine binoculars with the most robust design and hardiest rubberized coatings. The Commander Series’s top-of-the-line offerings are available with or without a compass. There is also a Global Compass option, which will work anywhere in the world.\nThe best feature of the Steiner line of binoculars is their Sports Autofocus. The only adjustment is made with each eyepiece. Once set for the user’s vision, these fixed-focus lenses never need adjusting. Simply pick them up and go–everything between 20 yards to infinity will be perfectly focused.\nSteiners are built to military specs with outstanding optics. According to the company, their rubber armor will protect them during drops of up to 11 Gs. Adding the optional floating neckstrap will add an even greater level of protection.\nThe Commander Series binoculars come with a heritage lifetime warranty.\nBest Marine Binoculars with Image Stabilization – Fujinon 14×40 TS-X 1440 Techno-Stabi\nThere aren’t many options for stabilized waterproof binoculars. Generally, stabilization means exchanging a robust and bulletproof set of binocs for something more delicate, filled with electronics and much less supporting of being tossed around.\nThere are a few models in the Techno-Stabi lineup, but only the 14×40 pair has the right combination of light-gathering abilities and waterproof design features. These binocs are o-ring sealed against water and fog, and they are nitrogen purged.\nThe Fujinon 14x40s are extremely popular with offshore fishermen since the extra magnification allowed by the stabilization system allows them to zoom in on the smallest details. And unlike cheaper systems, the Fuji stabilization works flawlessly on the rocking deck of a boat at sea.\nBest Binoculars for Sailing – Steiner Navigator Pro Binoculars 7×50 with Compass\nFor less than half the price of the Commander Series, you can get Steiner’s stellar optics and robust design in the Navigator Pro. These binoculars are very similar in size and design and still feature the Sports Autofocus. So what don’t you get? Unfortunately, the Navigator Pro is not available with the Global Compass and rangefinding reticle.\nThe Navigator Pros are submersible to 16 feet and built to withstand shock forces up to 11 Gs.\nBest Sailing Binoculars (Compact Binoculars) – Nikon Monarch M5 8×42 Roof Prism\nNikon makes stellar optics, and they’ve got a lot more options than other companies regarding waterproof binoculars. In general, you can’t go wrong with the image quality in a pair of Nikons.\nOne nice thing they offer is their compact roof prism binocular designs. These are smaller and lighter than the bulky Porro prisms offered by other companies. In some ways, that’s good and bad since the bigger and wider Porro designs are easier to hold. But there’s always a place for a good pair of roof prism binocs in your bag, and with a little extra power to boot, you might find that you take these ashore for a little birding or wildlife spotting.\nThe new Monarch M5s are waterproof, nitrogen purged, and fog-free. They have a central focus knob and extendable eyecups to suit all types of uses. However, keep in mind that these are not strictly marine designed, so they have no rangefinder or compass.\nBasic and Best Boating Binoculars – Fujinon Mariner 7×50 WPC-XL with Compass\nThe optics in these waterproof Fujinons will surely impress–as will their price point. These are not small nor lightweight binoculars, but they suit the budget-minded sailor just right. They have individual focus on each eyepiece and a built-in world compass. They also have a reticle display in the left eyepiece.\nThese binoculars come with a floating neckstrap and are 100 percent waterproof. However, they do not come with a case, and they are not nearly as robust as the Steiner or other options on our list.\nBudget Binoculars for Sailing – Bushnell Marine 7×50 Waterproof Binocs\nAnother option available for under $200 is the Bushnell Marine line of binoculars. These barebones basic units get the job done–no bells and whistles necessary. They’re labeled “hermetically sealed” and IBX7-rated waterproof and have a beefy rubberized coating to keep them safe.\nLike the Fujinons above, these are individual focus models. That’s a bit clunky for marine use, but they are perfectly acceptable for the occasional use that most day sailors will have. This pair of Bushnells does not have a compass or rangefinder.\nThe Marine Binocular – A Important Part of Your Skipper’s Toolkit\nA solid pair of binoculars that you love is one of those items that will stick with you longer than most boats will. You’ll find you use them on land and sea, on your boat, and on others’.\nBinoculars for Boating FAQs\nWhat binoculars do ship captains use?\nThe marine standard for binoculars is 7×50. These provide sufficient magnification to resolve distant ships and markers while allowing enough light in to work effectively at night. They also are compact and light enough to use while handholding them on the deck of a moving ship.\nDo sailors use binoculars?\nYes! Binoculars are important tools for boaters to help them see distant boats, markers, buoys, or landmarks.","domain":"optical_engineering"}
{"url":"https://rainbowpick.com/products/switch-6-kit-iphone-x-case","date":"2020-06-05T03:06:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348492427.71/warc/CC-MAIN-20200605014501-20200605044501-00356.warc.gz","language_score":0.8706468343734741,"token_count":405,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__104614660","lang":"en","text":"Switch 6 Kit iPhone X Case\nThe Switch 6 Kit is a 6-in-1 lens kit for the iPhone X. The dual-optics design of the lenses allow you to use it with the two cameras on the dual camera system on the iPhone X. Winner of the CES 2018 Innovation Award, the 6-in-1 lens design gives an extremely compact size that is full of functionality.\n6-IN-1 LENS DESIGN\nThe Switch 6 Kit’s 6-in-1 lens design lets you quickly switch between the fisheye, wide angle, telephoto, and macro lenses. With the dual optics design, you have 3 sets of lenses that will work perfectly with the dual camera system on the iPhone X.\nQUICK TO INSTALL\nInstallation of the case and lens is easy! Just snap the case onto your phone and install the lens into the case. To change the lenses, just slide the lens up and you can be sure it’s always ready to capture the perfect shot.\n180˚ FISHEYE / 2X TELEPHOTO\nThe Fisheye and Telephoto lens allows you to greatly extend your optical zoom range to capture a variety of shots.\n10X MACRO / 20X SUPER MACRO\nUse the Macro Lens to get extreme close-up detail. It is fully compatible with the dual camera system on the iPhone X. *With a focusing distance of 18mm, get incredibly close to your subject until it comes into focus.\n120˚ WIDE ANGLE / 2X TELEPHOTO\nCapture more and extend the range of your iPhone’s camera with the Wide Angle and Telephoto lens. Choose the lens that suits your needs.\nALL AROUND PROTECTION\nThe Switch 6 Kit offers an all-around protection for bumps and scratches and the raised lip protects your screen when setting the phone face down. The cutouts allow for full functionality of all the ports and buttons.","domain":"optical_engineering"}
{"url":"https://www.provisionmiramar.com/myopia-control","date":"2024-04-13T03:26:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816535.76/warc/CC-MAIN-20240413021024-20240413051024-00064.warc.gz","language_score":0.9221214056015015,"token_count":394,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__91761732","lang":"en","text":"Myopia Management MiSight\nPro Vision Eye Care Center is proud to be one of the few offices accredited to be a part of CooperVision’s Myopia Management initiative. With the release of MiSight 1day lenses, eye care professionals and parents can feel empowered to take on pediatric myopia’s growing prevalence and severity with a proven approach scientifically designed for the challenge.\nThe cornerstone of a comprehensive myopia management approach, MiSight® 1 day is a daily wear, single-use contact lens that has been clinically proven and FDAapproved to slow the progression of myopia (nearsightedness) when initially prescribed for children 8-12 years old.\nAT A GLANCE\n- Suitable for children as young as 8**\n- Easy for children to wear and handle\n- Corrects your child’s distance vision\n- Helps slow the progression of myopia (gradual prescription changes)*\nWhat is Myopia? How can it be treated?\n- Myopia is the inability to see things clearly unless they’re relatively close to your eyes.\n- Also called nearsightedness or shortsightedness.\n- Myopia causes light rays to focus at a point in front of the retina rather than directly on the surface, owing to the elongation of the eye.\nMyopic progression is when prescriptions increase over time, and higher prescriptions have been linked to sight-threatening conditions later in life such as, retinal detachment, glaucoma and myopic maculopathy.\nEven children with fairly low prescriptions have a higher risk of glaucoma and retinal detachment compared to non-myopic children, and that risk multiplies as their prescriptions get stronger. Until now, traditional eyeglasses and contact lenses available in the U.S. have only been developed to correct blurred vision, which is a symptom of myopia, while not approved to slow its progression.","domain":"optical_engineering"}
{"url":"https://solarmarkers.com/","date":"2024-04-20T17:14:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00192.warc.gz","language_score":0.9210123419761658,"token_count":109,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__97733610","lang":"en","text":"L.E.D. Illuminated Road Marker Systems\nWe are very proud to be the leading manufacturer of solar powered L.E.D. illuminated road marker systems: the next generation of pavement marker systems.\nReliable and durable quality has been proved for over 24 years. We provide the newest technology for extraordinary LED markers. Our products have a longer lifespan than any others. TÜV ASTM D 4280 – 04 & FITI Test approved.\nEmploying the latest in solar cell technology.","domain":"optical_engineering"}
{"url":"https://www.raybancheapsale.com/2023/05/23/cheap-ray-ban-sunglasses-fake-ray-ban-sunglasses/","date":"2024-03-01T04:15:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474948.91/warc/CC-MAIN-20240301030138-20240301060138-00370.warc.gz","language_score":0.9284979701042175,"token_count":1064,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__164875013","lang":"en","text":"First of all, cheap Ray Ban sunglasses exhibit high-quality materials and exquisite craftsmanship. Whether it is the frame or the lens, it has undergone a strict selection and manufacturing process to ensure the durability and quality of the product. Its metal frame is made of high-strength material for durability and will not deform easily, while the plastic frame is made of material for strength, durability, and excellent impact resistance. The high-quality optical material used in making the lens ensures excellent transparency and scratch resistance, delivering a clear and comfortable viewing experience.\nSecondly, Ray-Ban pays attention to details and design to create unique and classic styles. Whether it is the classic Wayfarer or the stylish Aviator, cheap Ray Ban sunglasses have a unique appearance and iconic features, becoming an eternal classic in the fashion industry. The brand has also launched a variety of colors and lens options to meet the individual needs of different groups of people.\nIn addition, cheap Ray Ban sunglasses have excellent functionality. They use advanced lens technology that can filter out more than 99% of harmful UV rays and protect the eyes from UV rays. Sunglasses also have good anti-glare performance, which can effectively reduce the glare of sunlight and reflected light, and provide a clear and comfortable vision.\nIn short, Ray-Ban sunglasses have earned a reputation for their high quality, exquisite craftsmanship, and classic design. They are not only a symbol of fashion accessories, but also provide superior visual protection and comfortable wearing experience. Whether in outdoor activities, driving or daily life, when you choose Ray-Ban sunglasses, you can enjoy the perfect combination of excellent quality and fashionable style.\nThe use of high-quality materials is what cheap Ray Ban sunglasses are known for around the world. Ray-Ban has always insisted on using the highest quality materials to ensure the excellent quality and durability of its eyewear.\nFirst of all, Ray-Ban often uses high-strength metals, such as stainless steel or titanium alloys, to make their frames. These materials have exceptional strength and corrosion resistance, able to withstand the impact and pressure of everyday use, extending the life of the glasses. In addition, Ray-Ban also uses strong plastic materials, such as nylon or acetate, which are lightweight, flexible and resistant to abrasion.\nSecond, Ray-Ban lenses use high-quality optical materials, such as high-grade resin or glass. These materials have excellent optical properties, ensuring clarity and scratch resistance. Ray-Ban carefully processes and coats its lenses to effectively prevent glare and reflection, providing a comfortable viewing experience. In addition, Ray-Ban also provides different types of lenses, such as UV protection, anti-blue light and gradient lenses, to meet different needs.\nRay-Ban also pays attention to detail and craftsmanship, ensuring that they craft each eyewear with care.Whether it is the design of the frame or the hinges of the temples, they all show exquisite workmanship and high quality. Ray-Ban glasses also ensure a comfortable fit on the face and provide a stable wearing experience through their ergonomic design.\nAll in all, cheap Ray Ban sunglasses choose high-quality materials such as high-strength metals, strong plastics, and high-quality optical materials to ensure superior quality and durability. Whether for outdoor activities, driving or fashion accessories, Ray-Ban sunglasses are your reliable choice for clear, comfortable and durable vision.\nRay-Ban sunglasses are famous all over the world for their exquisite craftsmanship. As one of the world’s top eyewear brands, Ray-Ban commits to creating the fine details of each pair of glasses in order to bring consumers an unparalleled quality experience.\nFirst of all, Ray-Ban pays attention to material selection. They use high-quality metal and plastic materials to ensure the sturdiness and durability of the frames. Every detail is thoughtfully designed and selected to reveal a unique style and texture, whether it’s a classic metal frame or a sleek plastic frame.\nSecondly, Ray-Ban crafts sunglasses with exquisite attention to detail, strictly controlling and operating every link precisely. Expert artisans hand-finish each step, from shaping and polishing the frames to cutting and fitting the lenses, to ensure that they achieve the highest quality standards for each pair of glasses.\nPlus, Ray-Ban’s attention to detail makes their eyewear impeccable. Whether it is the hinge design of the mirror legs to ensure flexible opening and closing, or the meticulous lens assembly to ensure perfect symmetry and balance, Ray-Ban pays attention to every detail and strives to present the perfect craftsmanship to consumers.\nFinally, fake Ray Ban sunglasses also pay attention to ergonomic design. They give full consideration to the wearer’s comfort and stability, so that each pair of glasses can fit the contours of the face perfectly. Whether it’s the curved design or the adjustment of the nose pads, Ray-Ban ensures that the glasses feel comfortable to wear and stay on your face stably, allowing you to show off your style with confidence.\nIn short, Ray-Ban sunglasses are renowned for their exquisite workmanship. Whether it is in design, production or detail processing, Ray-Ban always pursues excellent quality.","domain":"optical_engineering"}
{"url":"https://chris-marine.com/products/monitoring-of-diesel-and-gas-engines/liner-condition-camera-lcc/","date":"2023-12-05T22:42:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100568.68/warc/CC-MAIN-20231205204654-20231205234654-00515.warc.gz","language_score":0.7794654369354248,"token_count":326,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__87489350","lang":"en","text":"Camera that scans / documents the condition of the cylinder liner interface, exhaust valve, piston rings and piston crown.\nThe photos are used when evaluating cylinder condition parameters such as cleanliness of ring land, size of cylinder wear edge, cylinder honing mark and wave-cut groove extension, black lacquering from corrosive wear and bore polish.\nThe Chris-Marine Liner Condition Camera (LCC) is used for photography of the cylinder liner walls and piston ring pack in 2-stroke engines. The images captured by the camera are used when evaluating cylinder condition parameters such as:\n|Weight|| 550 g (camera unit) |\n9 kg (complete equipment in storage box)\n|Dimensions (L x W x H)|| 176 x 78 x 33 mm (camera unit) |\n510 x 310 x 130 mm (storage box)\n|Camera resolution||1280 x 1024 pixels per camera (4 cameras included in the camera unit)|\n|Power supply|| Battery operated |\nCharging equipment included\n|Batteries|| Camera unit: 6 Ni MH batteries with a total capacity of 3.6 Wh |\nOperator's unit: 1 Li Ion battery with a capacity of 29.6 Wh\n|Mains supply (chargers)|| Camera unit: 100-240 V, 50/60 Hz, 0.35 A |\nOperator's unit: 100-240 V, 50/60 Hz, 0.5 A\n|Ambient air temperature (camera unit)||0-85°C|\n|Cylinder diameter range||480 to 980 mm|","domain":"optical_engineering"}
{"url":"https://ecsiinternationalgov.com/?products","date":"2020-07-02T18:52:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593655879738.16/warc/CC-MAIN-20200702174127-20200702204127-00347.warc.gz","language_score":0.8312413096427917,"token_count":191,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__254798183","lang":"en","text":"IPID – Infrared Perimeter Intrusion Detection Systems\nThe Architectural IPID system provides dependable security barriers of pulsed infrared beams to create multiple detection zones with a range of up to 1000 feet. Our solid state electronics are not affected by environmental conditions such as birds, small animals, snow, puddles, leaves, grass or mechanical vibrations. The system will alarm only if an object breaks the 3.54” diameter beam m ore than 98.5%.\nSeries 4000 Architectural Column\nSeries 4000 Architectural Bollard\nFOIDS – Fiber Optic Intelligence and Detection System\nPurely optic. Electronics are not used in the field. Works on fences, walls, and even in the ground. It has a staggering range of over 60km. using single mode fiber optic cable. Advanced algorithm processing at central control permits remote audible alarm assessment and reduces false alarms to the lowest levels in the industry.\nFOIDS Series 6000","domain":"optical_engineering"}
{"url":"https://tallyhomedeco.com/product/vortex-crossfire-hd-12x50-hunting-binoculars/","date":"2023-06-06T23:32:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224653183.5/warc/CC-MAIN-20230606214755-20230607004755-00663.warc.gz","language_score":0.8540006875991821,"token_count":271,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__158748424","lang":"en","text":"These Vortex Crossfire HD 12×50 Binoculars deliver high-end optics and features all at an amazing value for your hunting and bird watching needs. Vortex designed these Binoculars with an HD optical system outfitted with fully multi-coated lenses for impressive color fidelity, maximum light transmission and anti-reflective properties. You can use these Vortex Crossfire HD 12x50mm Roof Prism Binoculars is rainy conditions with its non-slip rubber armor grip that protects the internals, and these binos deliver waterproof, fogproof and shockproof performance in any environment. Comfort is key to a long day in the backcountry, which is why these binoculars have adjustable eyecups and are compatible with tripods for hands-free viewing. Grab your pair of Vortex Crossfire HD 12×50 Waterproof Binoculars to spot prey at a distance with clarity and precision.\n- HD Optical System\n- Fully Multi-Coated\n- Rubber Armor – Provides a secure, non-slip grip, and durable external protection\n- Waterproof, shockproof and fogproof\n- Adjustable Eyecups\n- Center Focus Wheel – Adjusts the focus of both binocular barrels at the same time\n- Diopter – Adjusts for differences in a user’s eyes\nThere are no reviews yet.","domain":"optical_engineering"}
{"url":"http://56yu.xyz/index-24.html","date":"2024-02-23T14:43:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474412.46/warc/CC-MAIN-20240223121413-20240223151413-00714.warc.gz","language_score":0.9424943923950195,"token_count":1109,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__130958251","lang":"en","text":"When we reviewed the Unistellar eVscope a couple of years ago, we came away impressed. It offered a communal stargazing experience that takes our ubiquitous smartphones and turns them into a way to view the heavens. Unistellar's newest offering is the eQuinox 2, a lower-cost alternative to eVscope 2, taking all of the features from its original telescope, improving the technology, and dropping the price to $2,499.\nUnistellar's smart telescopes are designed to make astronomy more accessible by automating skywatching and using digital sensors to \"collect\" light from faraway objects, making light pollution a small nuisance instead of a deal-breaker.\nAt a glance, the biggest difference between the eQuinox 2 and its predecessor is the former's lack of an eyepiece. Unistellar got rid of the eyepiece, which isn't much of a loss. Instead of taking turns peering through the eyepiece, up to 10 people can stargaze simultaneously with the Unistellar app. Connect to the telescope's built-in Wi-Fi network, launch the app, and you're ready to scan the skies. One person controls the telescope and everyone else can watch. The operator can give control of the telescope to anyone else easily.\nThe other changes are internal. There is a higher-resolution 6.2-megapixel sensor in the eQuinox 2, while the battery life has been increased to 11 hours. The eQuinox 2 has a 450 mm focal length and a field of view of 34 x 47 arc minutes. The mirror is still 4.5 inches (11.43 mm), and the telescope features 50x optical magnification and 400x digital magnification.\nSetting up the eQuinox 2 is unchanged: unlimber the tripod, use the built-in level to make sure the tripod is level, drop the telescope's base into the mount, tighten the screws, and you're ready to go. Press the power button and the status light turns purple for a minute as the telescope starts up. Unlike almost every other electronic device you've ever used, when the light turns red, it's ready to go.\nOnce you've connected to the eQuinox 2's Wi-Fi network, launch the app, and you're ready to go. Start by tapping the telescope icon to get to the telescope control screen and then use the virtual joystick found via the Move button to shift the scope to a 45-degree angle. Once there, use the focus wheel on the bottom of the telescope to manually focus, then hit \"eVscope Orientation\" so the telescope can figure out where it is and what bits of the sky are visible.\nFor the actual stargazing, there are two options. Either use the manual controls to point the telescope where you want to look or browse the catalog of visible objects. The latter is populated with all manner of celestial bodies, from galaxies to nebulae to planets. The catalog is almost always the best move—even if you know with certainty what you want to observe and where it is in the night sky, the telescope can find it faster and better than you. Use the visible sky area button to filter the catalog objects.\nLike the eVscope, the eQuinox 2 can \"ignore\" light pollution. Its Smart Light Pollution Reduction makes it possible to stargaze in cities and suburbs where most astronomical observations are simply out of the question. I set the telescope up in my suburban Chicago alley, unable to see much more than the Moon and a couple of objects. I set my sights on the Ring Nebula, as that was the most interesting object visible. The eQuinox 2 took a couple of minutes to orient itself into position. After it stopped, I hit Enhanced Vision, which essentially collects light on the sensor while removing the effects of light pollution, and waited. Over time, the image on my iPhone filled in, showing unexpected detail given the amount of light pollution in the sky.\nOne new feature of the eQuinox 2 is the ability to use Enhanced Vision on the planets. Previously, users had to manually adjust the gain, contrast, and brightness to view the planets as anything other than bright and fuzzy pixel blobs. Unfortunately, I could not test the new feature out due to a combination of smoke from Canadian wildfires, overcast nights, and a limited field of view in my neighborhood. On the nights when the planets were visible in the night sky, they were low enough above the horizon to be blocked from view by houses and trees.\nThe improvements to the Unistellar app seemed mostly cosmetic. That said, it remains easy to use, and each object in Unistellar's 5,000-object celestial database is accompanied by an image and descriptions. I found myself reading up on various nebulae and galaxies in the app as I waited for the telescope to orient itself for observations.\nWhat was true of the eVoscope in 2020 remains true today: This is a pricy bit of equipment. The good news is that it costs $500 less than its predecessor. And the ability to have multiple people look at the skies with their smartphones makes stargazing a shared experience. If you've got $2,499 to spare and desire to learn more about astronomy, look no further than the eQuinox 2.\nListing image by Unistellar","domain":"optical_engineering"}
{"url":"https://tacconusa.com/rifle-scope-reticle-ffp-vs-sfp/","date":"2024-02-22T03:02:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947473690.28/warc/CC-MAIN-20240222030017-20240222060017-00137.warc.gz","language_score":0.9383823871612549,"token_count":2185,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__80573809","lang":"en","text":"The reticle of a rifle scope is usually located in the First Focal Plane or Second Focal Plane. The major difference between both planes is the behaviour of the reticle when adjusting the magnification of the rifle scope. So, they both have various applications they can be used for. In this rifle scope FFP vs SFP comparison article, we will explain both planes and the applications they are best suited for. Let’s get into it.\nFirst Focal Plane\nFirst Focal Plane is also known as Front Focal Plane. It is used to indicate the reticle’s position. FFP reticle lies at the magnifying lens’ front inside the scope erector line. Long-range shooters generally prefer first focal plane scopes. The reticle a shooter’s eyes see when adjusting an FFP scope’s magnification changes in size. As the magnification level increases, the reticle becomes larger and vice-versa. This simply implies that the value of the unit of measure of each hash mark, MOA or MIL, remains the same irrespective of the magnification’s current setting.\nToday, FFP scopes are becoming increasingly popular among shooters, especially hunters, who shoot at targets at long distances. It’s a huge advantage regarding speed to know the value of the hash marks remains the same in all situations. However, this speed also has a disadvantage: the changes in the size of the reticle may become too large at some distances associated with magnification. This can, in turn, make the shot placement complex. Nonetheless, scenarios like these can be solved using an illuminated reticle.\nPros And Cons of First Focal Plane\nFirst focal planes have their advantages and disadvantages. We will highlight them in this section.\n- An FFP scope has a constant and steady subtension.\n- Increased accuracy possibility.\n- It can conveniently hold over at any power.\n- An FFP scope is suitable for long range shooting.\n- Its reticle is visible at high power.\n- Reticle becomes difficult to see at low power.\n- More expensive than second focal planes.\nSecond Focal Plane\nThe Second Focal Plane is also known as the Rear Focal Plane. It is also known as the reticle’s position. Unlike the FFP reticle, SFP is located behind the magnifying lens. However, it’s in front of the rifle scope’s eyepiece. SFP scope is the most common reticle position preferred by numerous hunters. This is because the SFP reticle is how numerous shooters expect a scope’s reticle should be. The SFP reticle remains at the same size through all magnification levels, making it incredibly easier to see at every range. However, this comes at a price. Since the reticle doesn’t change in size, its hash marks are unstable in what they denote.\nThe hash marks depict various values associated with the magnification when the scope is not at full magnification. For example, if the full magnification of a rifle scope is 1 MOA, then hash marks depict twice the default value, 2 MOA, at half of the original magnification. This becomes an added issue for the shooter. This is because they would have to do some mental math when using the hash marks.\nPros And Cons\nThe Second Focal Plane Scope also has its advantages and disadvantages. We will explain some of them in this section.\n- The reticle is easily visible at all powers.\n- Crosshair visibility in low powers.\n- Second Focal Planes are more affordable than First Focal Planes.\n- Crosshair visibility in low light.\n- Subtension changes constantly throughout the power range.\n- Not suited for long range shooting.\nFirst Focal Plane VS Second Focal Plane: Which Should You Use?\nIt takes more than preferences before you choose between an FFP and SFP reticle. You must also consider some crucial factors such as how you intend to use the scope and magnification requirements. In this section, we will discuss various ways both can be used and the one that takes the win for each one.\nThere are two crucial factors you must consider when choosing between the FFP and SFP reticle; terrain and magnification. First Focal Plane scopes are suitable for high power and mountainous, open country areas. On the other hand, Second Focal Plane scopes are low magnification and brush, timber, or Midwest animal hunting.\nNormally, 4-16x and 3-9x are excellent configurations for numerous hunting conditions. This is because they can cover a lot of ground. The reticle’s visibility that remains the same in lowlight conditions at low powers gives the Second Focal Plane scope an edge over the First Focal Plane. The SFP’s normal reticle visibility is also used by shooters in thick timber and heavy brush environments. The crosshairs on the FFP optic can get too small and become difficult to see, especially in terrains.\nIt’s, however, notable to mention that the FFP scope is also good for hunting. It ensures precise holdovers at any magnification level. If you constantly hunt with more than 12x magnification, you can maximize this feature to its full possibilities. This is perfect for open country, long-range, and unpredictable terrains. It is less than ideal to dial in magnification to achieve the calibration power to use at the adequate holdover point.\nFinally, the last legal light’s last thirty minutes is usually the perfect time to fill a tag. Resolution, clarity, and brightness are best attained on low powers. This makes the SFP scope a better option for hunting since the FFP plane has issues with reticle visibility in low power and low light.\nAll high-powered scopes used for tactical, combat, or home defense circumstances will have their reticles located in the first or second focal planes. CQB performance is crucial for numerous professional situations. The SFP optic is easily visible, constant, and suitable for CQB combat.\nThere is usually no need to hold even when magnification is changed within 250 yards, at least on a one-man target size. Numerous LE (Law Enforcement) combats are incredibly close. So, LE sniper situations are usually closer than people think. You can use both FFP and SFP scopes for tactical and combat use. However, SFP will function well for close to mid ranges with a 50 to 100-yard zero.\nFFP optics also have their advantages when it comes to combat and tactical use. They are significantly useful on magnified reticles for fast corrections or when holding over and follow-up shots over a distance. However, it all comes down to the type of speed or distance requirements and combat.\nDo snipers use First Focal Planes or Second Focal Planes? It’s general knowledge that veteran snipers prefer to use the fixed 10x power scope. However, it also depends on the law enforcement agency; local or military police. The budget and preference are also huge determining factors when it comes to choosing a reticle focal plane. So, both focal planes can be used for combat.\nLong range shooting usually implies a huge dependence on the reticle and high magnification. It doesn’t matter if it’s competitive shooting or hunting, the FFP scope is the best option for long-range performance.\nUndoubtedly, FFP optics offer numerous benefits since they are the best scopes for long-range shooting. One of the benefits you get is that you can optimally use a complex reticle. With numerous windage and elevation holdovers that will constantly be precise irrespective of magnification, the FFP optic ensures straightforward and fast decisions. This also boosts the shooter’s confidence in decreasing POI shifts when adjusting the power.\nAnother benefit of the FFP scope for long-range shooting is that the reticle becomes bigger as you increase its power. This makes it incredibly easier to see the hash marks, crosshairs or/and dots. However, the only disadvantage is that the subtension of the FFP reticle can block significant areas when hunting small targets, making it harder to make shots.\nSFP scopes will perform excellently well for bench shooters who are not on the clock and are content with shooting from maximum power. You will also need quality turrets and glass. This will ensure the magnification is easily visible irrespective of the magnification. However, the FFP scope is the best solution for long-range shooting.\nLow Power Variable Optic (LPVO)\nLPVO scopes are an ideal option for tactical carbines and are close to mid-range optics. The red dot ability and 1x magnification are some of its must-have features. However, its low variable magnification makes it a flexible optic. In most cases, the SFP is recommended but the FFP can also offer advantages regarding distance.\nFFP reticles on LPVO scopes are better suited for shooters who engage targets at varied and multiple distances. It’s suitable for military personnel on the front line and competition shooters. Using the FFP on an LPVO also ensures fast and precise shots using holdovers. It’s notable to mention that FFP optics with high-grade LPVO scopes would be fast to use and visible in low powers. FFP reticles are commonly found in 1-10x or 1-8x LPVO scopes.\nHowever, in numerous instances, LPVO scope users are usually more attracted to SFP optics. They are also the optics that are commonly found on 1-6x and 1-4x scopes. Even when shooting out of specific circumstances like over 250 yards, there’s still enough time to max out or dial in the power for precise holdovers. This makes the SFP reticle a better option for LPVO scopes.\nWhen it comes to choosing between the FFP and SFP scope, the intended application should be a priority over preference. You should consider the SFP scope alone if you are on a budget since it is more affordable than the FFP scope. However, beyond the budget, ensure the scope you choose is right for the intended purpose. This rifle scope FFP Vs SFP comparison has been able to highlight the advantages and disadvantages of both optics. We also explained some of the applications each scope is best suited for. With this rifle scope FFP Vs SFP comparison, choosing the right scope for you has been made easier.\nBonus: Inforgraphic For FFP and SFP Comparision ( Source : Accurate Ordnance)","domain":"optical_engineering"}
{"url":"https://www.birdpoty.co.uk/camera-school-1/2019/3/12/professional-photographer-and-bpoty-director-paul-sterry-provides-a-guide-to-basic-equipment","date":"2019-09-19T04:20:53Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514573439.64/warc/CC-MAIN-20190919040032-20190919062032-00357.warc.gz","language_score":0.9306634664535522,"token_count":1000,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__109792150","lang":"en","text":"1. A Guide to Basic Equipment\nCentral to any bird photographer’s kit are a camera body and lens. In this article we will talk about the DSLR (Digital Single Lens Reflex) bodies. Mirrorless camera systems are starting to make a big impact in the market, but they are the subject of a future article. DSLR cameras use a mirror system so that what you see through the lens is what is captured on the sensor; lenses are interchangeable. The range of manufacturers and models is vast, and choices can be bewildering. To follow are some guidelines to help navigate this minefield.\na. Camera body file size\nThe heart of a digital camera is its sensor: a grid of dots (pixels) each of which records colours and their intensities when exposed to light. More pixels means more detail can be captured by the sensor and modern cameras boast sensors with tens of megapixels (MP), a megapixel being a million pixels. Resulting image quality is also influenced by internal camera software. Nowadays, cameras in the 20-40MP range are typical and resulting file sizes are enormous. But image size is not all-important. Take an identical image with 20MP and 40MP cameras, print both at A4 at the same resolution and you will be hard pushed to tell the difference. Images from a 36MP camera will print to more than 60cm maximum dimension, an excessively large size in most circumstances. Large file sizes do, however, allow for significant cropping to be made but otherwise, beyond 20MP, size is arguably not the most important consideration for most photographers.\nb. Camera body sensors: FX vs DX\nDSLR cameras sensors are either ‘full frame’ or ‘cropped’. The term ‘full frame’ harks back to the days of 35mm film and relates to a sensor whose area is roughly 24mm x 36mm, the film dimensions of old. As the name suggests, with cropped sensor cameras the sensor area is cropped, producing the illusion of magnification.\nRegardless of format, almost all modern cameras produce images whose quality is astounding under the right circumstances, and any differences are subtle. To complicate matters cameras are available in a spectrum of sensor MP sizes, reflected in the pricing, so you are seldom comparing like with like. However, if you take two cameras with identical output file sizes then the full frame sensor’s pixels will be larger than their cropped sensor counterparts, and resulting images less ‘noisy’ (grainier in appearance), especially at ISO settings above 800. Crop-sensor cameras are generally smaller, lighter and cheaper than their full frame counterparts and are an option if the size of the subject in the frame is your main concern. But this magnification is illusory and the same effect can be produced by cropping an equivalent full frame image in post production. If your budget allows, then a full frame camera body is probably the best option, one whose sensor lies in the 25-40 megapixels range.\nc. Camera body frame rate and autofocussing\nIf you like taking action shots then you will be frustrated if the camera’s frame rate is less the 6 shots per second, and around 10 per second is be ideal. Also, the camera’s ability to autofocus quickly will be significant if, for example, you want to take birds in flight; both the camera and the lens play crucial roles in this function. Take reviews you read with a pinch of salt and try the various combinations yourself before making a purchase.\nIn most circumstances, bird photographers require a telephoto lens of some description. Fixed focal length lens of 300mm or more are favoured and a 600mm f/4 lens is the mark of a serious individual. These monsters produce stunning results in the right circumstances but are very heavy, requiring a tripod for most situations. Shorter lenses are hand hold-able to a degree, depending on your strength. Another option is a telephoto zoom. The most appropriate models span focal lengths somewhere in the 100mm-500mm range. They are comparatively lightweight because fundamentally they contain less glass and have a resulting darker operating aperture (typically f/5.6). This has an adverse knock-on effect on the speed and ability of autofocus function.\nReferred to as ‘extenders’ by some manufacturers, the magnification offered by 1.4x and 2x converters is irresistible for bird photographers seeking to increase the size of the subject in the frame. However, they do have disadvantages. They reduce the amount of light reaching the sensor by a significant amount, which affects autofocus speed and aperture unless you increase the ISO. In addition, they cause deterioration in image quality. The effect is barely noticeable with some lens/converter combinations but ruinous with others. Try out all the combinations and see what works for you.","domain":"optical_engineering"}
{"url":"https://sideallyhotel.com/how-to-check-mirrors-in-a-hotel-room/","date":"2023-01-27T05:51:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764494936.89/warc/CC-MAIN-20230127033656-20230127063656-00307.warc.gz","language_score":0.9301359057426453,"token_count":2034,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__12551890","lang":"en","text":"How To Check Mirrors In A Hotel Room – A two-way mirror is a transparent mirror that can look just like a normal mirror when the back of it is opaque. Don’t worry, there’s more than one way to tell the difference!\nWe have a series of three tests to use to ensure that the mirror you see in front of you is not a two-way mirror.\nHow To Check Mirrors In A Hotel Room\nPlace the nail in front of a mirror. You can test to see which side the reflective layer is facing. For two-way glass mirrors, the mirror coating must face you.\nBloomingville’s Round Wall Mirror\nIf your nail’s reflection touches itself, that’s the painted side. If there is a gap between your finger and its reflection, go to test #2.\nThe two-way glass mirror is unidirectional. You can only install it when the mirror coating is facing forward, so it’s easy to detect with this test.\nThe two-way acrylic mirror and the smart glass mirror are not one-way. You should use the following two tests to make sure it’s not a two-way mirror in this case.\nThe two-way glass mirror has a reflective coating of 70%. Only 11% of the light is allowed to pass through the mirror. It is on a dark gray background, which makes it unidirectional. The two-way glass mirror cannot fool the nail tester. The reflective layer must face the room being observed. That way, people only see their own reflection. On the other side is the dark room where the viewer watches.\nHow To Tell If A Mirror Is Two Way Or Not: 8 Steps (with Pictures)\nThe light is even on either side of the mirror in this image. You can see through the semi-transparent glass at the moment.\nThe two-way glass mirror cannot fool the nail tester. The reflective layer must face the room being observed. That way, people only see their own reflection. On the other side is the dark room where the viewer watches.\nAll three types of mirrors we look at in this article have a reflectivity of 70%. Standard mirror reflectivity 94%. This means it will have a darker shade than a regular mirror.\nTo perform this test, you just need to take a regular mirror out of your purse or pocket. Place it next to a mirror and check if the shade is mirror-like. If it looks darker, it’s probably a two-way mirror.\nThe Stunning Renovation Of Paris’s Hotel De Crillon\n70% reflective with 25% light transmission on a gray substrate, two-way acrylic mirror reflective on both sides of the substrate. This means it can be installed either way. If mounted backwards (the painted side on the back), it can trick the nail tester into looking like a reflection of a regular mirror! Something to keep in mind if you’re testing a questionable mirror. Acrylic tends to have a different texture than glass. Gently rubbing your fingernails over the surface can help you determine whether you have an acrylic two-way mirror or a regular glass mirror.\nThe two-way acrylic mirror will also better match the reflection color of a standard mirror. While the two-way glass mirror tends to have a bronze tone.\nThe smart mirror is similar in characteristics to the acrylic two-way mirror. It has a reflectance of 70% with a light transmittance of 25%. reflective on both sides of the substrate. The Smart Mirror can also be installed backwards (the painted side is on the back) It can fool the fingernail test looking like a reflection of a normal mirror!\nIf you test a questionable mirror, the smart mirror tends to be hotter on the reflective layer. Note the smart mirror on the right compared to the standard mirror reflection of the mug on the left.\nMirror Decor Ideas To Brighten Your Space\nIf you’re worried about the two-way mirror and the first two tests don’t work for you, try gently tapping the mirror. If it is a hollow sound rather than a more solid sound, it is possible that the area behind the mirror is open rather than attaching the mirror to the wall. This may reveal that there is a surveillance area or camera behind the mirror. Be careful out there!\nTwo-way mirrors depend on the lighting in the room. Both sides of the mirror cannot be lit evenly for the illusion to work. The viewer’s side of the mirror must be at least semi-dark so that the reflective layer on the other side can properly reflect the light back to those being observed.\nSummary: Now that you’re armed with knowledge, never fear superficial mirrors again. Just remember to test the nails and the make-up mirror. How to Spot a Two-Way Mirror Is looking for a gap between an object and its reflection a good way to distinguish two-way mirrors from regular mirrors?\nLooking for a gap between an object and its reflection is one way to distinguish two-way mirrors from ordinary mirrors.\nMirrors Hotel, İstanbul\nWith the latest advances in microelectronics, it’s hard for any of us to know we’re not being spied on these days; Cameras and transmitters can now be made so small and unobtrusive that most of us wouldn’t be able to find them even if we knew where to look for them. Many would-be floaters still resort to less technologically advanced methods such as eyelets and two-way mirrors, hence the warning that began circulating on the Internet in April 1999:\nHow to detect two-way mirrors when we visit toilets, bathrooms, hotel rooms, changing rooms, etc. How many of you know for sure that a seemingly ordinary mirror hanging on the wall is a real mirror, or actually a two-way mirror (ie they can see you but you can’t see them)? There have been many cases of people installing two-way mirrors in women’s dressing rooms. It is very difficult to positively identify a surface just by looking at it. It’s time to get paranoid. So how do we decide for sure? Again, I’m here to enlighten you. Just do this simple test: place the tip of your nail against the reflective surface and if there is a gap between your nail and the nail image, it’s a real mirror. But if your nails are directly touching your nail art, watch out, because it’s a two-way mirror! You can further confirm the nature of the suspect surface by throwing an object (like a chair!!!) onto it. The chair will pass. So remember, every time you look in a mirror, do the “nail test”. It costs you nothing. It’s easy to do, and it just might protect you from “visual rape”! Share this with your girlfriends.\nFirst, we should clear up some confusing terms. The subject of this thesis is panels that look like mirrors on one side but act like tinted windows on the other – that is, if you are on one side of this panel, it appears to be a mirror through which you can see your image. reflexion; If you’re on the other side, it’s like a window through which you can see everything (and everyone) on the other side. These panels are confusingly called “one-way mirrors” and “two-way mirrors”, so to avoid further confusion we’ll call them “transparent mirrors” from now on.\nThe spike test described above is a way to determine the difference between first surface mirrors and second surface mirrors, both of which are ordinary mirrors that are glazed in different ways. With a surface first mirror, anything you place against it will touch its reflection because the reflective part of the mirror is placed directly on the surface. With a second surface mirror, the gap between the object and its reflection will be visible because a layer of clear glass has been incorporated over the reflective part of the mirror to better protect it. First-look glasses are expensive and typically only used for specialized applications such as precision optical instruments or lasers, where a protective layer of glass interferes with the light path or reduces resolution. As such, you’re unlikely to come across one used as a regular mirror in a home or dressing room; For these applications, the much cheaper other surface mirrors are almost always used.\nClever Ways To Use Mirrors To Make Your Home Feel Bigger And Brighter\nSo if you see what appears to be a surface-first mirror (that is, the object you place in front of it and touch its reflection) in the dressing room, it is probably a transparent mirror. However, the spike test is not necessarily a very good test, as the assessment of whether an object placed on such a mirror touches its reflection can be affected by factors such as the size of the mirror, the angle of the mirror, the amount of lighting present, the type of object used to perform the test, and the observer may make mistakes. Not easy to experience in ordinary mirror and transparent mirror in this way. (Check the “character of the suspect surface by throwing one\nHow to check for two way mirrors, how to use mirrors in the garden, how to decorate with mirrors in the living room, where to hang mirrors in living room, how to place mirrors in the living room, where to place mirrors in living room, how to set side mirrors in car, wall to wall mirrors in living room, how to check mirrors while driving, how to decorate with mirrors in dining room, how many mirrors in one room, how to use mirrors in living room","domain":"optical_engineering"}
{"url":"http://www.zsp-tech.com/t8-led-grow-light-zpdt802-series","date":"2018-12-15T14:53:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376826856.91/warc/CC-MAIN-20181215131038-20181215153038-00638.warc.gz","language_score":0.7958227396011353,"token_count":665,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__109276167","lang":"en","text":"T8 LED grow light ZPDT802 series\nTwo channels network T 8 LED grow lights--ZPDT802 series\nZPDT802 series is T8 LED grow lights with light intensity and spectrum dimmable via Modbus protocol. It is reliable for long-term running under the allowed temperature range at 45watts and the max power can be up to 60W.\nZPDT802 series has extremely high lighting power density (LPD), together with its dimmable light intensity and spectrum, it can help on the light spectrum needed by different plants from vegetation to bloom. All these make it a perfect solution for research center and indoor grow facilities which needs high intensity light in a short distance and where the plants change a lot.\nVia ZSP control system, ZPDT802 series can change the light intensity and spectrum sequentially, simulate the sunrise/ sunset in different seasons. And it can run automatically according to the pre-programmed spectrum mix, so this will lower the technical requirement on workers as well as their work load, thus improving the efficiency and accuracy.\nZPDT802 series can work alone or be integrated in system managed by ZSP software or third-party one compliant with Modbus protocol.\n- Programmable spectrum and light intensity control for any growth stage, saving cost in purchase, maintenance and stock\n- Strong power and configurable for different plants\n- Low voltage drive, keep people safe\n- Standard Modbus protocol, easy for any third party integration\n- Tough design for high temperature and humidity environment\n- 5 Year Warranty.\n- Input Voltage:45V-52V DC\n- Max. Current:1.4A\n- Power Consumption:0-60W\n- Management:485-A based Modbus standard\n- Dimming:2 Channel\n- Red Wavelength:665nm\n- Blue Wavelength:445nm\n- Photosynthetic Photon Flux (PPF):95µmol/s(45W); 126 µmol/s(60W)\n- Spectrum Mix:Full Red, Full Blue or any spectrum mix\n- Research center in compact space\n- Indoor grow facilities with different plants\nPatent Owned (No.)\n- 201720117846.2 Utility Model Patent\n- 201710069610.0 Invention Patent\n- 201720043000.9 Utility Model Patent\n- ZL201620429423.X Utility Model Patent\n|ZPDT802-45||45W, PPF 95;mol/s|\n|ZPDT802-60||60W, PPF 126mol/ s|\nPN Note: e.g. ZPDT802-45\n- ZP--ZSP, short for ZSP-Tech.\n- D--Dimming, light intensity and spectrum dimmable. S--Smart. DS--Dimming and Smart.\n- T--Tube, like T8 etc. M--Mining Light. B--Bar, light bar without enclosure. R--Rail light. E--Elephant, lights looks like trunk.\n- 80--industrial application. 60--commercial and home application.\n- 2--channel, 2channels\n- 45--power consumption, 45watts","domain":"optical_engineering"}
{"url":"https://www.ishkawatersports.ie/product/arena-unisex-cobra-ultra-swipe-mirror-racing-goggles-yellow-copper-white/","date":"2024-04-13T16:59:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816820.63/warc/CC-MAIN-20240413144933-20240413174933-00724.warc.gz","language_score":0.893138587474823,"token_count":451,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__192420260","lang":"en","text":"- Made to be fast: The most advanced mirrored racing goggles, with the revolutionary Swipe anti-fog technology for long-term clear vision and stylish hydrodynamic design\n- Swipe: the best anti-fog protection ever. It lasts ten times longer than regular anti-fog and can be reactivated with a simple swipe of your finger on the inside of the lenses.\n- The hydrodynamic sleek design and frame-integrated lenses reduce drag to the extreme. Innovative extended frame for extra stability. Interchangeable nose bridge. Dual strap. UV protection.\n- Designed for competitive swimmers and triathletes. FINA approved.\nThese goggles with dark lenses are good for swimming in brightly lit environments or for those who prefer maximum light shielding.\n- 70% Polycarbonate, 20% Silicone, 10% Thermoplastic Elastomer\nArena Unisex Cobra Ultra Swipe Mirror Racing Goggles Yellow Copper-White\nLook forward, look fast, look sharp: Discover the most advanced mirrored unisex racing goggles, the arena Cobra Ultra Swipe Mirror. The stylish goggles with sleek and hydrodynamic design are perfect for competitive swimmers and are FINA approved. They are equipped with arena’s revolutionary Swipe anti-fog technology that lasts ten times longer than regular anti-fog protection. For perfect clear vision. For long. To reactivate the anti-fog treatment gently swipe the inside of the lenses five times while the goggles are in the water, once you see the first signs of fog. The low-profile lenses minimize water drag to the extreme and offer excellent hydrodynamics. Delivered with five interchangeable nose bridges for perfect customization to different face and nose shapes. The dual strap is easily adjustable at the back of the head and guarantees stable fit, even during start and turns. The innovative temple design ensures a secure fit especially on dives. The lenses are equipped with UV protection and the whole product is PVC free. The goggles are available with clear lenses for low-light environments and for those who prefer maximum brightness and dark lenses for bright environments or those who prefer maximum light shielding.\nAvailability: In stock","domain":"optical_engineering"}
{"url":"https://en.tsu.ru/news/a-new-way-to-make-a-communication-connection-in-space-more-cheaply/","date":"2021-06-16T11:51:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487623596.16/warc/CC-MAIN-20210616093937-20210616123937-00199.warc.gz","language_score":0.9504117369651794,"token_count":338,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__3331826","lang":"en","text":"Artem Kamenev, a student of TSU Faculty of Radiophysics, is working on a model of a flat focusing reflector. This device is much simpler in design than existing counterparts. Its use will reduce the cost of organizing communication in space.\nFor the majority of aerospace systems, a very important aspect is to obtain high-power signals as both emission and reception for communication with the Earth. To do this today parabolic reflectors are mostly used.\n- Parabolic reflectors have a high gain without the use of additional equipment and they can work for narrowband and ultrawideband signals, - says Artem Kamenev. - However, for their smooth operation, it is necessary to maintain an accurate parabolic shape, which is quite difficult in space.\nUnlike the parabolic, the flat reflector is not deformed in space. In addition, it is simpler in construction and to assemble and transport. Currently, the scientist has created a model of a flat reflector and investigated the effect of various parameters on its properties.\nA flat focusing reflector, as a rule, works only in a narrow band of frequencies, but Artem Kamenev found a way to implement tuning the frequency. Furthermore, the flat reflector that he has made has an extremely low cost, presumably five times less than the parabolic.\n- For small mirrors, this difference will be noticeable only in industrial scale. If we consider the structures that are deployed in the space, a great many of functional elements are used, and so then the difference in cost will be very noticeable - said Artem Kamenev.\nThe device has already been patented.","domain":"optical_engineering"}
{"url":"https://langyida.en.made-in-china.com/product/DsqJWnbzOTcG/China-China-Manufacturer-7W-LED-Bulb-Aluminum-Cover-Energy-Saving-Bulb.html","date":"2018-02-25T13:11:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891816462.95/warc/CC-MAIN-20180225130337-20180225150337-00044.warc.gz","language_score":0.7027474045753479,"token_count":749,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__244309134","lang":"en","text":"China Manufacturer 7W LED Bulb Aluminum Cover Energy Saving Bulb\n|FOB Price:||US $4.21 / Piece|\n|Min. Order:||500 Pieces|\n|Min. Order||FOB Price|\n|500 Pieces||US $4.21/ Piece|\n|Payment Terms:||L/C, T/T, Western Union, Paypal, Money Gram|\n- LED bulb catalog\n- 50 Products\n- Product Image\n- Product Name\n- FOB Price\n- Product Attribute\n- Product Table\n- Model NO.: LYD-XAB-7W\n- Lamp Body Material: Aluminum Alloy\n- LED: High-power\n- Light: Gradual Changing\n- Warranty: 3 Years\n- Input Voltage: 85-265V\n- Application: Office, Factory, House, Store, Restaurant etc.\n- Voltage: 85-265V\n- Ra: >80\n- Life Time: 50000h\n- Product Cover: Aluminum\n- Transport Package: 1 PCS/Box, 100 Boxes/Carton\n- Origin: Shenzhen, China\n- Color Temperature: Pure White\n- Power: 7W\n- Lamp Holder/Base: E27\n- Usage: Spot Lighting\n- IP Rating: IP44\n- Product Name: 7W LED Bulb\n- Trade Type: OEM, ODM\n- PF: >0.9\n- Lumen: 110-120 Lm/W\n- Beam Angle: 120\n- Trademark: Langyida\n- Specification: Carton size 50*50*70cm\n- HS Code: 9405409000\nChina manufacturer 7W LED bulb Aluminum cover energy saving bulb\n|Light source||SMD 5730|\n|Operating Temperature||-20° to 50°C|\n|Application||Office, factory, house, store, restaurant etc.|\n2.Packing and shipment\n1). All products have label in the tube and inner packing;\n2). Packing standard: sealed, braided, labeled w/product description, and quantity;\n3). Storage requirment: no wet, no dust, fragile, anti-corrosion liquid, avoid direct sunshine\n4). Storage period: 1year, must be re-inspected(electricity driver) after 1year;\n5). Packing standard: Inner packing + outer box.\n1). Fast deilvery: For samples 3-5 working day. For bulk order: 7-30 working days.\n2). Good Quality control: We have our own LEDs Encapsulation room, we produce LED\ndrivers by ourselves.\n3). Mature OEM Service: With 10 years LED lighting manufacture. FREE laser print label,\ncolor box design etc.\n4). Professional sales team, engineer team, and good after-sales service.\nLangyida Technology Co. Ltd is a professional LED manufacturer, focuing on industrial\nLED Light and commerical LED light research, development, production, sales and service,\nwas in High-end operation and service provider in High power LED. Under the conuntry\n\"saving\" policies, we are striving to create environmental protection, energy saving, long\nlife lighting and earned a reputation of being a quality supplier of LED lighting.\nWith the direction of High power LED light, industrial LED light and commerical LED\nlight, company developed milti-stlye series of LED lighting, including LED tube, LED bulb,\npanel light etc.\nContact man:William Tang\nMobile:+86 150 1268 9987","domain":"optical_engineering"}
{"url":"https://www.vikingelectronics.com/products/vcam-1ir/","date":"2021-04-10T18:49:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038057476.6/warc/CC-MAIN-20210410181215-20210410211215-00212.warc.gz","language_score":0.8289514780044556,"token_count":553,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__170560586","lang":"en","text":"Infrared Compact Color Video Camera Kit for Use with IR Illuminators\nFind A Distributor\nThe VCAM-1IR is a high-resolution color composite video camera for use with IR illuminators. The compact size of this camera will allow mounting in even the smallest locations, and the extreme temperature rating of this camera makes it ideal for mounting in outdoor locations in a watertight enclosure.\nThe VCAM-1IR is the same size as the VCAM-1 allowing it to replace the camera in most Viking products, including but not limited to AES-2005, E-35, E-50, E-65, E-75, K-1205, K-1705-3, and W-3005. The VCAM-1IR has a day/night OLP (optical low pass) filter and is compatible with standard 840 – 850nm IR illuminators.\nAll cameras are equipped with Enhanced Weather Protection (EWP) for outdoor installations where the unit is exposed to precipitation or condensation. The VCAM-1IR features sealed connections, as well as an epoxy potted circuit board.\n- Door entry\n- Gate entry\n- Covert surveillance\n- High resolution color composite video camera with wide 80° viewing angle, tilt / swivel adjustments, and wide operating temperature range\n- IR illuminator compatible (840 – 850nm)\n- 12VDC adapter and wire connectors included\n- Designed to meet IP66 Ingress Protection Rating for outdoor use, comes standard with Enhanced Weather Protection (EWP), see DOD 859 for more information\n- Shipping Weight: 1.0 lb (0.45 kg)\n- Dimensions: 1.03” x 0.94” x 0.76” (26mm x 24mm x 19mm)\n- Temperature: -40°F to 185°F (-40°C to 85° C)\n- Humidity: 5% to 95% non-condensing\n- Image Sensor: 1/4″ color CMOS\n- Video Output: 1VP-P composite, NTSC, 75 Ohms\n- Resolution: 420 lines (640 x 480 @ 30fps / 307,200 pixels)\n- Sensitivity: 0.025 LUX (50 IRE) F1.2 3200K\n- Lens: 2.1mm, conical pinhole\n- Field of View: 80° Horizontal, 60° Vertical, 100° Diagonal\n- Tilt / Swivel Adjustment: Vertical +/- 20°, horizontal +/- 30°\n- Connections: (3) gel-filled butt connectors (3M Scotchlok UR2)","domain":"optical_engineering"}
{"url":"http://jeffreycqdl938.thezenweb.com/Eye-Surgery-8355692","date":"2018-05-26T11:27:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-22/segments/1526794867417.71/warc/CC-MAIN-20180526112331-20180526132331-00486.warc.gz","language_score":0.9583768248558044,"token_count":1325,"dump":"CC-MAIN-2018-22","global_id":"webtext-fineweb__CC-MAIN-2018-22__0__99757379","lang":"en","text":"Eye Surgical procedure has actually come to be a mainstream approach of vision modification, as well as this article will discuss the benefits as well as disadvantages of three various approaches being used to the medical customer.\nLasik Eye Surgical procedure\nLASIK is the phrase for Laser-Assisted In Situ Keratomileusis and is an eye surgical system which completely remedies vision by getting rid of a thin layer of the cornea. This procedure works best on people with moderate to high levels of myopia (nearsightedness), reduced to moderate degrees of hyperopia (farsightedness) as well as astigmatism connected with nearsightedness, and that have thick corneas. It is one of the most widely known surgical vision adjustment method.\nIndividuals with normal eye sight see items clearly due to the fact that images are brought into a correct prime focus by the cornea and also lens of the eye. Preferably, the cornea's curvature is equally matched to its length in a regular eye. Individuals with astigmatism, nearsightedness or hyperopia have off-and-on formed corneas, so the objects seen are not concentrated appropriately. LASIK adjustments corneal shape by precise removal of corneal cells, and also by doing so fixes the eyes' focusing power.\nThere are, nevertheless, dangers to LASIK eye surgical procedure.\nThere is a remote opportunity of complete loss of vision. If this occurs, it is typically because the person had a pre-existing problem which needs to have averted the surgery to begin with, such as pregnancy, cataracts, arthritis, diabetic issues, glaucoma, or lupus. Individuals with big students are likewise inadequate prospects for LASIK. Dry eye syndrome will certainly be exacerbated by this treatment.\nA couple of individuals grumble that they permanently see \"ghost\" pictures, have blurred vision, diminished contrast and poor evening vision. When LASIK was first presented, 5% of individuals had post-operative grievances; however, improvements in the treatment have caused this price to go down to much less compared to 1% if LASIK is executed by proficient professionals as well as individuals are effectively screened before surgical treatment. If troubles do take place, they could frequently be resoved by a retreatment.\nFDA has accepted LASIK laser eye surgery given that 1998. While there are a great deal of completely satisfied individuals, there are however no long term research studies about its results. Recognize the constraints as well as the threats of LASIK eye surgical procedure before you sigh up for the treatment.\nThough less well known, these tiny implants can enhance vision in individuals with mild to modest nearsightedness without the threat of permanent eye damage fundamental in the cells elimination method of LASIK. Intacs are semi-circular disks dental implanted in the cornea which stretch it to think a flatter shape. Though a little much less accurate compared to LASIK, they are removeable as well as exchangeable, so if the patient has an unforeseen over- or under-correction, the dental implant can be removed as well as one more of a various dimension placed to get the desired improvement. The implants lie at the edge of the cornea, so the main aesthetic location is completely intact as well as intact, as well as the toughness of the cornea is undiminished, making it a much better alternative for pilots as well as those who participate in contact sporting activities where eye injury is an opportunity.\nIntacs disagree for serious myopia and greater than small astigmatism (1.00 diopters), as the cornea could just be stretched so far. If the Intacs are gotten rid of, vision returns to its preoperative level. Aside from vision correction, Intacs are additionally made use of to treat keratoconus.\nIntacs are FDA authorized and 10 year researches have disclosed no major troubles with Intacs as well as very few patient issues; nevertheless, because the procedure takes much more training than LASIK, there are fewer eye surgical procedure centers providing it. However, the Intacs site offers a checklist of experts in each state, as well a couple Going Here of in Canada, Europe and Mexico.\nSince lots of people do not wish to run the risk of LASIK and Intacs can not help those with serious vision problems, intraocular lens implants (IOL) are a brand-new choice authorized by the FDA in these details 2004 to correct moderate to extreme nearsightedness. The Artisan lens, made by Ophtec, resembles the kind of lens dental implant utilized to bring back vision complying with cataract eye surgical treatment.\nThe new IOL, called the Artisan, is planned for just people who have 2.5 diopters or less of astigmatism.\nThe artificial lens does not change the natural lens, however is put before it. The major issue discovered with the implant was the stable loss of endothelial cells in the corneas of clients who got the implants. The endothelium is a layer of cells that line the undersurface of the cornea and are important in maintaining the cornea clear. A three-year study showed a constant consistent loss of endothelial cells of 1.8 percent a year. At this moment, no one could anticipate whether this loss will certainly continue at the very same price forever, and even its impact on corneal feature.\nTo lessen long-lasting results of the device on the corneal endothelium, the FDA is requiring that the brand-new lenses be labelled to define that they ought to just be implanted in individuals whose corneal endothelial cells are thick adequate to stand up to minor cell loss.\nMuch more major problems were couple of: retinal detachment (0.6%), cataract development (0.6%), and also corneal swelling (0.4%). The FDA is requiring Ophtec to carry out a five-year follow-up study of its implant individuals to much better analyze the post-surgical incidence of cataract development, retinal detachment as well as other ocular conditions.\nThe Craftsmen lens is meant to be an irreversible implant.Though it can be eliminated surgically, vision might not always go back to what it was prior to getting the lens. Since it does not influence astigmatism, people with this problem could still need glasses.","domain":"optical_engineering"}
{"url":"https://www.eyeworld.org/roles-vary-inlays-among-presbyopia-treatments","date":"2017-04-25T10:45:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917120338.97/warc/CC-MAIN-20170423031200-00610-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.916539192199707,"token_count":2037,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__234087532","lang":"en","text":"Side view of an inlay as a diamond blade corneal incision is created\nMicroscope view of KAMRA inlay in an eye with a posterior subcapsular cataract\nCataract removed with phaco under the inlay\nView of posterior subcapsular cataract shows how it interferes with patient vision.\nSource (all): Kevin Waltz, MD\nSurgeons’ experience with corneal inlays have shown which patients can benefit and how the devices interact with other treatments\nThe emerging presbyopia treatment of corneal inlays expands surgeons’ options, but the technology can affect other vision treatments.\nCorneal inlays are one of a growing number of surgical options to address the deteriorating function of the crystalline lens over time, known as dysfunctional lens syndrome (DLS).\nLASIK monovision is the traditional treatment for many patients with stage 1 DLS, which for many patients is not only presbyopia but an uncoupling of the offset of spherical aberration between their lens and cornea. Jay Pepose, MD, PhD, director, Pepose Vision Institute, and professor of clinical ophthalmology, Washington University School of Medicine, St. Louis, considers LASIK with blended vision for suitable candidates after assessing corneal topography, pachymetry, and the ocular surface.\nStage 1 patients also can now be treated with the KAMRA inlay (AcuFocus, Irvine, California), which is a small aperture implant placed in a lamellar pocket. The device works best implanted monocularly in –0.75 D eyes, whether with natural vision or after LASIK, Dr. Pepose said.\nIn comparison, the Raindrop inlay (ReVision Optics, Lake Forest, California), which is placed directly under a LASIK-type flap, can help patients with good distance vision and up to 1 D of hyperopia.\nAmong stage 1 patients considering corneal inlays, William Wiley, MD, medical director, Cleveland Eye Clinic, Ohio, may try a multifocal or monovision contact lens, which provides similar optics to a Raindrop inlay.\n“That simulates nicely what Raindrop vision is,” Dr. Wiley said. “Alternatively, we can demonstrate an aperture optic with a pinhole occluder in the office to simulate the optics of a KAMRA corneal inlay.”\nDr. Wiley discusses advantages and disadvantages of each option for patients, some of which depends on their baseline prescription. More myopic patients—in the range of –0.5 D or –0.75 D—tend to do well with a KAMRA inlay, Dr. Wiley said.\n“It seems that the KAMRA with aperture vision optics, takes good intermediate vision and extends the depth of focus to both distance and near,” Dr. Wiley said. “So patients starting with mild myopia do well with the KAMRA inlay.”\nIf the patient is a low hyperope, he or she tends to set up better for a Raindrop. The “sweet spot” is somewhere between +0.5 D and +0.75 D, Dr. Wiley said. The inlay works by steepening the cornea centrally, which not only treats some of the hyperopia but also brings in the near vision.\n“So often we lean toward the Raindrop in the low hyperopes,” Dr. Wiley said.\nAs discussed, the prime base range of corneal inlays is between -.75 (KAMRA) and +.75 (Raindrop). Presbyopic patients with baseline prescriptions beyond these sweet spots may benefit from combined LASIK and corneal inlay. As such, LASIK can be used to bring the baseline position into the ideal range of performance for corneal inlays, Dr. Wiley said.\nKevin Waltz, MD, president, Ophthalmic Research Consultants, said it’s important to recognize inlay patients are usually between 45 and 55 and have some residual accommodation—just not enough.\n“We’re augmenting it, and the augmentation will last for a period of time, just like when you do monovision,” Dr. Waltz said. “If you get monovision at 50, often you’ll get about 1 D of myopia to help with the loss of accommodation. It’s something that works for a period of time and works pretty well but ultimately you will need something else.”\nDr. Waltz noted that the greater the patient’s presbyopia, the less well corneal inlays work.\nDr. Wiley leans toward a clear lens exchange in patients in their 40s with higher prescriptions, such as +4 D or +5 D. In such patients he uses an extended depth of focus lens, often in the dominant eye. After assessing the visual function in the first eye, he matches it with either a Symfony lens (Abbott Medical Optics, Abbott Park, Illinois) or a traditional multifocal in the second eye.\n“We find that the extended depth of focus lens gives great intermediate and distance vision but sometimes does not deliver the near vision that patients are looking for,” Dr. Wiley said. “So in the second eye we consider doing more of a traditional multifocal to bring in better near vision.”\nDr. Waltz said some surgeons follow the “rule of eight,” in which they consider clear lens removal reasonable in patients who score eight or more in a grading system, which includes one point for every decade of life and one point for every diopter of hyperopia.\n“That gives an upper border for when it is time to think about lens surgery instead of an inlay,” Dr. Waltz said.\nStages 2 and 3\nCorneal inlays drop off Dr. Pepose’s algorithm among eyes in stage 2 DLS, which are those with moderate scatter.\n“I consider monovision or blended vision LASIK, with an explanation that this will not end the aging process and eventually cataract surgery will be required,” Dr. Pepose said.\nAdditionally, stage 2 patients could consider cataract IOLs options and possibly benefit from a premium IOL, he said.\nFor stage 3 DLS, which includes significant scatter, cataract surgery is indicated, and Dr. Pepose assesses the patient’s vocation and avocation, biometry, angle kappa, corneal wavefront, macular function, and ocular surface. Additionally, Dr. Pepose discusses the best IOL option or combination for each patient.\nThe older the patient (and thus, the increased likelihood of cataract formation), the more Dr. Wiley leans toward a lens procedure instead of a corneal procedure.\n“If their lens is showing scatter, like an AcuTarget [AcuFocus] showing that they already having optical quality decrease in addition to the presbyopia demonstrated by the objective measure of the device, then we will lean more toward a lens procedure,” Dr. Wiley said. “But usually it is dictated by age. So the older they are, the more we will lean toward lens replacement, rather than corneal surgery.”\nDr. Waltz noted that when the natural lens is replaced, it improves the function of the KAMRA, and he anticipates the same result with the Raindrop.\n“One of the nice things about treating [DLS] with this is that you pay for it once, you get it inserted once, and one day when you have cataracts you get a reinvigoration of your benefit, which is a nice treat,” Dr. Waltz said.\nDr. Waltz said he has performed several cataract surgeries with an inlay in position.\n“You have to get over your concern that you cannot see the entire field,” Dr. Waltz said. “It turns out that you are stroking with your phaco handpiece through these blacked out zones, but it doesn’t harm anything, it doesn’t slow down your surgery, and it’s very doable.”\nVisualizations with an inlay can come from rotating the globe to look at different parts around the inlay, Dr. Waltz said.\nAn important note is that femtosecond cataract surgery should not be performed through an inlay, the surgeons said. The black KAMRA inlay is highly absorbent of infrared energy, heats up, and harms the cornea with the heat. Similarly, a Raindrop will distort the layer of the cornea the laser will cut.\n“For those two reasons you cannot use femtosecond lasers with either of the current corneal inlays in place,” Dr. Waltz said.\nAnother important note is that although corneal surgery can make cataract surgery calculations more difficult and the outcome less predictable, inlays do not complicate calculations, Dr. Waltz said.\nDr. Waltz said calculations with the KAMRA inlay should use the center point on the topographer—not manual keratometry or simulating tables—to account for changes in the keratometry.\nEditors’ note: Dr. Wiley has financial interests with AcuFocus, ReVision Optics, and Abbott Medical Optics. Dr. Pepose has financial interests with AcuFocus. Dr. Waltz has financial interests with AcuFocus and Abbott Medical Optics.","domain":"optical_engineering"}
{"url":"http://zgjckj.ijournals.net.cn/zgjckj/article/abstract/20230118","date":"2023-04-01T01:46:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296949694.55/warc/CC-MAIN-20230401001704-20230401031704-00483.warc.gz","language_score":0.6733810901641846,"token_count":1216,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__192247028","lang":"en","text":"Aerogel glass is a high quality product of new building envelope structure, and it can effectively reduce the loss of energy consumption. At present, granular aerogel glass is the main product at home and abroad. In this paper, six kinds of aerogel particles with different particle sizes (6~8 mesh, 8~10 mesh, 10~12 mesh, 12~14 mesh, 14~16 mesh, 16~18 mesh) and four kinds of insulating glass with different filling thicknesses (5.5mm, 6mm, 8mm, 10mm) are selected for compound. The influence of two factors on light transmittance and thermal insulation is studied. The results show that when the particle size of aerogel glass is 8~16 mesh with the same filling thickness, the light transmittance decreases gradually with the particle size decreasing, and the visible light transmittance increases when the particle size is 16~18 mesh. When the filling material is the same, the smaller the filling thickness, the higher the visible light transmittance. By comparing aerogel glass with traditional insulating glass, the light transmittance decreases somewhat and the heat transfer coefficient decreases significantly. Under the light irradiation at 100℃, the thermal insulation effect of aerogel glass gradually increases with the decrease of particle size, and gradually increases with the increase of filling thickness, which is much higher than that of ordinary insulating glass, further confirming its excellent energy-saving effect.","domain":"optical_engineering"}
{"url":"http://www.nano.kmitl.ac.th/tjnn/index.php/tjnn/article/view/59","date":"2022-09-27T18:50:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335054.79/warc/CC-MAIN-20220927162620-20220927192620-00120.warc.gz","language_score":0.7197856307029724,"token_count":312,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__291138417","lang":"en","text":"Study the influence of mesoporous titanium dioxide layer on Perovskite solar cell efficiency\nKeywords:mesoporous titanium dioxide, perovskite solar cell, solar cell efficiency\nThis paper studied mesoporous TiO2 on the power conversion efficiency of perovskite solar cells by fabricating TiO2 paste instead of prefabricated TiO2, cutting the hole-transport layer, and using carbon instead of gold electrodes. The fabricated perovskite solar cells (PSCs) feature FTO glass/ compact TiO2/ mesoporous TiO2/ CH3NH3PbI3/ carbon electrodes. The mesoporous TiO2 layer was prepared from anatase TiO2 and dissolved in ethanol at the ratios of 2.63, 1.27, 0.65, and 0.32%, respectively. The best perovskite solar cell efficiency was obtained using a mesoporous TiO2 cell at a concentration of 1.27% with an open-circuit voltage (Voc) of 0.41 V, short-circuit current density (Jsc) of 3.48 mA/cm2, fill factor (FF) of 0.3, and power conversion efficiency (PCE) of 0.44%.\nCopyright (c) 2022 Thai Journal of Nanoscience and Nanotechnology\nThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.","domain":"optical_engineering"}
{"url":"http://www.miaplastestetik.com/eng/q-switched-nd-yag-laser.php","date":"2023-09-30T03:49:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510575.93/warc/CC-MAIN-20230930014147-20230930044147-00611.warc.gz","language_score":0.926013171672821,"token_count":870,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__138635726","lang":"en","text":"Spectra Q Switched Nd Yag Laser\nYou Can Call Us Or Fill Out The Form On The Side\nSpectra that is among the new-generation Q Switched Nd:YAG lasers is a new laser system designed by Lutronic especially to remove tattoos and deep pigmented lesions. Spectra is a Q-Switched Nd:YAG laser that can produce four different wavelengths as 1064 nm, 650 nm, 585 nm, and 532 nm. The biggest feature of the Q-Switched technology is that it can make extremely strong pulses in an extremely short time (a couple of nanoseconds).\nIt can remove tattoos in countless colors by a single system due to its four wavelengths. By working in infra-red (1064nm), with a low interaction between the skin melanin and wavelength, it can remove black and blue tattoos even in dark skins. And the green light (532 nm) works on red and its tones.\nPigmented lesions are divided as epidermal or dermal according to the depth of pigment. Epidermal lesions (freckles, café-au-lait macules, sun spots etc.) are treated by using 532 nm of wavelength that is absorbed especially by melanin and so basically has impact on superficial skin levels. Dermal lesions such as Ota’s Nevus or Mongolian spots are located in deeper, for their treatment 1064 nm wavelength that is wawelength can have effect on more depths of the skin is used.\nAs in removing tattoos, only Q-Switched propagation can treat the dermal lesions effectively without risk of wound.\nUsage Areas Of Spectra Q-Switched Nd Yag Laser\n- Treatment of tattoos in all color and size\n- Dermal and epidermal spot treatment (sun spots, pregnancy spots, melasma)\n- Postinflammatory spots, café-au-lait macules\n- Treatment of body spots\n- Freckle treatment\n- Removal of large dark nevi (nevus of Ota, nevus of Ito, Mongolian spots)\n- Laser toning, laser skin rejuvenation, laser wrinkle treatment\n- Carbon peel\n- Active acne treatment\nSPECTRA Nd: YAG LASER\nQ-Switched Nd:YAG laserproduced by Lutronic is an award-winning laser system with its extraordinary success. Spectra which is the latest product of Nd:YAG laser series, is a light but stronger laser system that is also easy to use, safe, and presents broad application area. Spectra Q-Switched Nd:YAG laser designed for various aesthetic applications has the 4 wavelength generating capacity. While this device treats many pigmented lesions with a photomechanical system, it also removes the dark colored tattoos easily for the purpose of laser tattoo removal.\nIt lightens or completely removes the pigments and tattoo particles most effectively without damaging the healthy tissues around and disrupting the skin integrity, by using the strong pulses of Spectra laser light. When the melanosomes and tattoo particles are exposed to the laser light, they divided into small particles that are absorbed by the natural drainage system of the body.\nSpectra that gives versatile use possibilities also performs Spectra laser toning application at the same time. Remarkable results are gotten in the melasma treatment by this non-ablative application.\nBecause the another mode of operation Spectra Mode makes a long pulse as 300 microsecond, the new non-ablative we named as Spectra Peel is quite appropriate also in the application of resurfacing/restructuring the skin surface. With a carbon-based lotion combination, Spectra Mode makes a photothermal effect on the skin, and stimulated the regeneration of skin cells.\nThe consistent pulse-to-pulse stability feature in both the classical Q-Switched, and Spectra Mode makes Spectra effective in also non-ablative resurfacing/restructuring treatments that is used in cosmetics, and acne scars and wrinkle treatments.\nMoreover, Spectra has the feature of keeping the fluence always in the optimal level by its auto-calibration and self-restoration characteristics.","domain":"optical_engineering"}
{"url":"https://www.mdsci.org/exhibits/science-aglow/","date":"2024-02-27T11:10:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474674.35/warc/CC-MAIN-20240227085429-20240227115429-00573.warc.gz","language_score":0.9143022894859314,"token_count":152,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__51755096","lang":"en","text":"Science Aglow introduces the electromagnetic spectrum, with an emphasis on visible light and its interactions with mirrors, motion, and time.\nGlimpse the illusion of infinity as light bounces back and forth between mirrored surfaces. See your shadow like never before as it is temporarily captured on our glow-in-the-dark wall. Make a work of “light” art by sculpting light with prisms, mirrors, and lenses. Discover the concept of radiation as information, while exploring and experimenting with optics and the physics of light.\n- Strike a pose and freeze your shadow with light\n- Strange Lenses allow visitors to manipulate and distort light for different perspectives on sight\n- See how other creatures see light and color differently than the way we perceive","domain":"optical_engineering"}
{"url":"http://traviszzrh444.amoblog.com/2-facts-you-do-not-figure-out-regarding-lasik-eye-surgical-treatment-8566116","date":"2018-12-13T22:52:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376825112.63/warc/CC-MAIN-20181213215347-20181214000847-00406.warc.gz","language_score":0.9543502330780029,"token_count":877,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__87003140","lang":"en","text":"2 Facts You Do Not Figure Out Regarding LASIK Eye Surgical TreatmentThe eye can be taken a look at with relative ease regarding both its function and its structure. A functional examination consists of the ability to relocate the orbit and the reaction of the student to light and accommodation.\nThe function of the eye might be evaluated in several methods. The client may be asked to recognize illuminated letter or items of differing sizes on what is understood as the Snellen chart.\nOn the other hand, the examination of the structural part of the eye may be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In specific illness, specifically in glaucoma, the tension in the eyeball is increased markedly.\nIt must be well kept in mind that a patient with an eye problem might have other issues. Often other physical conditions are primary and affect the eye as a effect. The look of the eye can alert the physician and the patient to problems in some disruptions of other parts of the body even before other symptoms provide themselves.\nOne's reliance on sight is stressed when one deals with a possible or short-term long-term loss of this essential sense. Hence, when corrective steps are sought, specific kinds of vision correction such as contact lenses or spectacles are recommended.\nOn the other hand, some individuals are bothered with that they have some framed lenses or contact lenses in front of their eyes.\nFor this factor, advanced surgeries were developed to encourage reduced usage of contact lenses or glasses. One of which is the now popular LASIK eye surgery.\nBasically, LASIK eye surgical treatment is the short-term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete equivalent, LASIK eye surgery is another form of vision correction. The only distinction is that with this kind of surgery, one's vision is remedied completely.\nWith LASIK eye surgery, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe main function of this surgical treatment is to create a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, allowing much better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing appeal of LASIK eye surgery, there are still disadvantages that individuals need to know. Most likely, the main reason that this kind of eye surgery has actually ended up being well accepted is since most of its cases had achieved success.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation applied to the most sensitive part of the eye\nBecause LASIK eye surgery includes the operation of the retina, which is one of the most delicate portions of the eye, the majority of people state that the operation can be extremely dangerous.\nSimply puts, a basic error might almost cause an person's lifetime blindness. For this reason, it is essential to consider numerous aspects before deciding whether LASIK eye click for more surgical treatment is the ideal corrective step one needs to go through.\n2. It is not a perfect procedure\nLASIK eye surgery may fix your vision but it does not always indicate that it can offer you a best vision. Even if statistical reports show that 70% of the patients may have 20/20 vision, this does not necessarily indicate they have perfect vision too.\nOffered all these things, it can be deduced that, in spite of the appeal of the operation, LASIK might not always be the ideal eye surgical treatment the way many people see it\nConversely, the assessment of the structural part of the eye might be made in several methods. It should be well remembered that a client with an eye problem may have other issues. Often other physical conditions are main and affect the eye as a repercussion. The look of the eye can alert the patient and the physician to problems in some disturbances of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://stanflouride.com/2015/08/06/lunar-transit-of-earth/","date":"2023-03-20T16:12:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296943484.34/warc/CC-MAIN-20230320144934-20230320174934-00629.warc.gz","language_score":0.920343279838562,"token_count":224,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__17108600","lang":"en","text":"A NASA camera aboard the Deep Space Climate Observatory (DSCOVR) satellite captured a unique view of the moon as it moved in front of the sunlit side of Earth last month.\nThe series of test images shows the fully illuminated “dark side” of the moon that is never visible from Earth.\nThe images were acquired by NASA’s Earth Polychromatic Imaging Camera (EPIC), a four megapixel CCD and telescope on the DSCOVR satellite, which orbits about 1.6 million kilometers (1 million miles) from Earth. EPIC maintains a constant view of the fully illuminated Earth as it rotates, providing daily scientific observations of ozone, vegetation, cloud height, and airborne aerosols. About twice a year the camera will capture the Moon and Earth together as the orbit of DSCOVR crosses the orbital plane of the Moon.\nThe images shown above and in the movie below were taken over the course of five hours on July 16, 2015. The North Pole is toward the upper left, reflecting the orbital tilt of Earth from the vantage point of the spacecraft.","domain":"optical_engineering"}
{"url":"http://www.lasiksurgerydb.com/all-you-need-to-know-about-laser-eye-surgery/","date":"2020-02-26T01:20:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146176.73/warc/CC-MAIN-20200225233214-20200226023214-00516.warc.gz","language_score":0.9573399424552917,"token_count":523,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__54017584","lang":"en","text":"Laser eye surgery is one of the most advanced practices done nowadays to correct eye problems. During this surgical practice, light rays are refracted or bent by the cornea in order to direct them on the retina, a layer of cells that senses light. A large part of the eye’s capability to focus depends on the shape of the cornea. Laser eye surgery targets the cornea. Cornea is the external circular part that protects the colored part of your eye and the pupil.\nThere are 3 different types of laser eye surgery. The recent and the most popular type of laser surgery is known as ‘Lasik’. It involves creating a flap thru cutting off a thin layer of the cornea that additionally enables the laser to target the tissue underneath. The flap is placed back, regenerates naturally and the vision is eventually restored. The major risk of Lasik is corneal ectasia, a condition that weakens and bulges the cornea.\nThe second most common type of laser eye surgery is known as ‘Lasek‘ or ‘Epiflap’. It involves the fractional elimination of the epithelium to divulge the cornea. The cornea is then reshaped or firmed by the laser. Besides, the external layer of cells is pushed rear and the eye cures shortly after.\nPRK has been used for long. This method involves removing the whole epithelial cells on the eye. The major risks of PRK are only pain for some days and regression. As Lasik is used to heal astigmatism, myopia or hyperopia, Lasek is mainly used to correct gentle or common myopia. If successful, laser eye surgery can really reduce your need for eye glasses and inconvenient contact lenses.\nThese treatments are commonly considered safe. However, the medical area is divided in its opinion over some of the recent advances in eye surgery. This is mostly due to advanced technology and lack of study on the long-term effects of most of these treatments.\nLastly, you should also be very careful when choosing an eye surgeon since it has several limitations and possible complications. Besides, similar to any other surgery, eye surgery has its own set of risks, and surgeons should educate their patients on this matter, its risks, benefits as well as how to prevent them. For instance, Laser eye surgery should be done to healthy adults only. Mild eyesight complications are not considered genuine enough to warrant laser surgery. People with illnesses involving the bones, joints, diabetes and pregnancy should not carry out laser eye surgery.","domain":"optical_engineering"}
{"url":"http://lpoproducts.com/product/haag-streit-eyecap-digital-imaging-software/","date":"2018-09-21T12:29:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267157070.28/warc/CC-MAIN-20180921112207-20180921132607-00208.warc.gz","language_score":0.8714333772659302,"token_count":374,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__147690607","lang":"en","text":"management system that has been developed with cooperation from several leading\nophthalmic clinicians, ophthalmic photographers and optometrists as a means to\nsimply, accurately and securely document the eye using the slit lamp and/or\n- Highest Quality Images\n- Simple operation\n- Full relational database\n- Vast online storage\n- High level of data security\n- Digital capture from multiple sources\nDirect Image Capture\nwith the latest IM 900® and CM 900® dedicated slit lamp cameras from\nHaag-Streit as well as any other type of digital or video camera attachments.\nimage quality, include real time image viewing and capture, the ability to\nsimply control the image exposure and the unique history trigger. These\nfunctions are accessed either from the dedicated remote control or via the\nthe 900 BX® Digital Photo Slit lamp to capture images of oustanding quality.\nWorks with Current Fundus Cameras\ncameras to capture high-resolution color fundus images directly into the\npatient database. Images from the digital camera backs used now by most fundus\ncamera manufacturers are quickly transferred and displayed on-screen and retain\nthe high color fidelity and accuracy produced by these modern cameras.\ndesigned to speed up the process of disease diagnosis through a fast, intuitive\ninterface. With a fundus camera it’s a powerful tool for detecting retinal disease.\nSafe, Secure & Backed Up\nkeeps a copy of all images captured on-line providing the ability to store\nseveral hundred thousand images using conventional computer hardware. This\nintelligent method of image storage provides the clinician with fast-track\naccess to images from any patient visit regardless of when the original images\nsimply be exported for teaching for further referral and can easily be used in\nother applications or 3rd party software.","domain":"optical_engineering"}
{"url":"https://universesandbox.fandom.com/wiki/Normalized_Light_Curve","date":"2021-05-13T08:23:22Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243990584.33/warc/CC-MAIN-20210513080742-20210513110742-00140.warc.gz","language_score":0.9028403162956238,"token_count":259,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__67340408","lang":"en","text":"Normalized Light Curve\nThe Normalized Light Curve property of an object represents the fraction of its light that can be seen by the camera. For a star with no other objects between the star and the camera, the Normalized Light Curve will be equal to one. Any object blocking part of the light from the star will decrease the Normalized Light Curve. If the object is not a star, the Normalized Light Curve will be zero. This is a read-only property that is automatically calculated by Universe Sandbox.\nThis property is called a \"light curve\" as a reference to the common exoplanet detection technique known as transit photometry. In this method, astronomers measure the amount of light coming from a star over time, constructing a plot of light vs. time, or a \"light curve\". An exoplanet orbiting at the right angle relative to the observer will pass between the star and the telescope, causing a dip in the light curve. In Universe Sandbox, the user can simulation this technique by using the Graph option for the Normalized Light Curve property.\nProperty Details[edit | edit source]\nLocation[edit | edit source]\nThe Normalized Light Curve property is located in the Camera Relative section of the Motion tab of an object's properties panel.","domain":"optical_engineering"}
{"url":"https://www.oceani.com/imageacquisition.html","date":"2023-06-09T11:40:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224656675.90/warc/CC-MAIN-20230609100535-20230609130535-00605.warc.gz","language_score":0.9088025093078613,"token_count":426,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__60782072","lang":"en","text":"Image Data Acquisition\nOur staff has operated various aerial sensors since 1994 and has strong expertise in domestic and international mission planning, data collection and post processing.\nTactical Response Airborne Classification System (TRACS)\nThe TRACS system is the second-generation aerial mapping system designed for oil spill mapping and response, yet ready for use in many different applied remote sensing applications such as fire mapping, habitat mapping and animal surveys. TRACS is a portable, single-unit-design system, integrating a 3-CCD, multispectral RGB digital camera with a thermal infrared imaging camera and a high accuracy GPS-Inertial Measurement Unit (IMU). The cameras are equipped with special wide-angle lenses to increase the imaging swath width partnered with specially developed acquisition and processing software to both correct for lens distortion and automatically georeference each image frame to provide highly accurate geospatial data. The system provides 12-bit imagery at 20cm – 4m spatial resolution. Being compact and portable the system is ready-made to be flown on most any aircraft of opportunity and can be utilized for both Common Operating Picture (COP) and tactical use. Ocean Imaging owns multiple TRACS units staged in coastal cities of the U.S. Three of which are operated by the Marine Spill Response Corporation (MSRC). Read More →\nOcean Imaging and SeaView Fishing operates our own HRPT AVHRR satellite downlink for AVHRR, as well as acquire and process near-real-time data from the MODIS, VIIRS, Landsat 7, Landsat 8, RapidEye, Sentinel 2A & 2B as well as various altimeters. We provide operational image product support for end-users ranging from researchers and fishing vessels to federal and state agencies. We have expertise in processing and analysis of virtually every type of satellite data including visible multispectral, thermal, SAR and altimeter. We carefully evaluate the cost-vs-utility of each data option for a particular application to ensure the best results at the lowest cost. Read More →","domain":"optical_engineering"}
{"url":"http://quietroll.info/newton-and-light/","date":"2019-11-14T14:03:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-47/segments/1573496668525.62/warc/CC-MAIN-20191114131434-20191114155434-00166.warc.gz","language_score":0.8102977275848389,"token_count":740,"dump":"CC-MAIN-2019-47","global_id":"webtext-fineweb__CC-MAIN-2019-47__0__39840952","lang":"en","text":"newton and light portrait of sir isaac newton a polymath but above all physicist and mathematician in which fields newton lighting low fell jewellers.\nnewton and light sir isaac newton 25 december 1642 20 march 1727 united kingdom newton lighting low fell running.\nnewton and light newton newton lighting store.\nnewton and light ibn al haytham shaping our understanding of vision optics light newton and light theory color.\nnewton and light sir isaac newton and assistants explore the visible light spectrum refraction and optics in 1666 with chloe the cat painted by josej spalenka newton and huygens theory of light.\nnewton and light isaac newton quote is not fire a body heated so hot as to emit light newton lighting low fell running.\nnewton and light kobie j newton on twitter jamari moore is a ranged fighter wielding holy fire and light fantasy kindle audible saintmichael httptcohu2yvkppey newton lighting enterprises table lamp.\nnewton and light sir isaac newton newton and light theory studios.\nnewton and light 1968 glengettie tea historical scenes 4 sir isaac newton zql burlington lighting store.\nnewton and light sir isaac newtons numerous contributions to the fields of physics mathematics and optics included newton lighting low fell history.\nnewton and light man of science man of god isaac newton the institute for creation research newton lighting low fell fatal accident.\nnewton and light isaac newton ray of light stretched canvas science source 24 x 36 benjamin franklin and lightning.\nnewton and light newton newton lighting enterprises led.\nnewton and light memes gravity and atheist isaque newton and richard dawkins studied the nature of newtons lightsaber.\nnewton and light to learn more about colour of our sky click the link to watch a bbc video newton and hooke light.\nnewton and light newton and the spectrum franklin lighting store in sarasota florida.\nnewton and light newton demonstrating the phenomenon of refraction of light newton and light theory waves.\nnewton and light newton lighting enterprises lamps.\nnewton and light goethe on newtons theory of colours newton surmised that when we see a colour spectrum emerge from a prism it is due to the splitting of light newtons lightsaber hilt.\nnewton and light newton proved that all the colours that can be seem when combined together make up white light and that white light contains all the colours we see when franklin lighting store in sarasota florida.\nnewton and light learn about the dispersion of light the electromagnetic spectrum and how sunlight contains a range of wavelengths photons of differing energy w isaac newton light bulb.\nnewton and light isaac newton and the problem of color american association for the advancement of science newton and light theory color.\nnewton and light rare collection of published letters by isaac newton on his theory of light newton lighting enterprises t 1592 1592.\nnewton and light the modern understanding of light and color begins with sir isaac newton newton was the first to understand the rainbow newton refracts a white light with ben franklin light bulb quote.\nnewton and light newton lighting low fell.\nnewton and light nature of light benjamin franklin and light bulb.","domain":"optical_engineering"}
{"url":"http://apogeeinc.com/binoculars.html","date":"2017-04-23T05:22:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917118477.15/warc/CC-MAIN-20170423031158-00428-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.91131192445755,"token_count":350,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__112145897","lang":"en","text":"Astronomy Binoculars is another great choice for apprentice astronomers. A good pair of Bushnell binoculars would be cheaper than a high quality telescope or a spotting scope and would offer greater portability. Of course, discovering distant galaxies or watching planets up close would be impossible with a pair of binoculars by Leupold or Nikon since binoculars simply don’t have enough magnification. But if a star cluster or nebulae is all you want to see, Zeiss binoculars, for example, could be even more effective than a telescope.\nFew things matter when picking a good binocular for astronomy. First, pay attention to the aperture – it’s the most important specification in any astronomy binocular. Aperture is the diameter of a front lens, and the larger it is, the brighter the image will be. Objective size is the second number in binocular specifications. Binoculars with front lenses larger than 60mm are called giant binoculars. For a binocular that big you may want to purchase a tripod.\nMagnification is the first number, describing a binocular. For astronomy binoculars you should go with at least 7x magnification. But in order to get a clear, steady image with a hand-held astronomy binocular, you would not want to go higher than 10x. Astronomical binoculars with magnification higher than 10, require a tripod but will provide awesome stargazing experience.\nExit pupil is another important factor. It is calculated by dividing the aperture by the magnification. For example, a 10x50 binocular has an exit pupil of 5mm. Any binocular with an exit pupil of more than 5 can be used for astronomy.","domain":"optical_engineering"}
{"url":"https://www.uptowntools.com/collections/magnifying-and-optical/products/18mm-10x-chrome-with-rubber-grip-round-loupe","date":"2024-04-16T14:48:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817095.3/warc/CC-MAIN-20240416124708-20240416154708-00773.warc.gz","language_score":0.7708011269569397,"token_count":174,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__78585234","lang":"en","text":"10X Magnification loupe, 18mm lens with rubber grip\n| • The lens of Eye Loupe Magnifier is made of optical glass for extra sharpness and clarity\n• Round swing-away chrome plated case\n• 10 times magnification power for extra sharpness and clarity.\n• Foldable and portable Loupe Magnifier is convenient for your carrying.\n• Ideal for jewelry, coins, stamps, gems and antiques etc\n• You can get an extremely close view of the tiniest details\n• Jewellers Magnifier is great for inspecting gems and diamonds\n• Ideal for finding the hallmarks on silver and gold.\nWe Also Recommend\nARI DIAMOND VERIFICATION TESTER by PRESIDIUM ( CVD TESTER )\nRegular price $1,05000 $1,050.00","domain":"optical_engineering"}
{"url":"https://store.intelrealsense.com/buy-intel-realsense-depth-camera-d415.html","date":"2020-11-26T17:32:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141188899.42/warc/CC-MAIN-20201126171830-20201126201830-00023.warc.gz","language_score":0.7267570495605469,"token_count":934,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__65848777","lang":"en","text":"Intel® RealSense™ Depth Camera D415\nFor customers ordering to Israel, please click here.\nThe Intel® RealSense™ Depth Camera D400 Series uses stereo vision to calculate depth. The D415 is a USB-powered depth camera and consists of a pair of depth sensors, RGB sensor, and infrared projector. It is ideal for makers and developers to add depth perception capability to their prototype development.\nThe depth camera includes:\n- A powerful vision processor that uses 28 nanometer (nm) process technology and supports up to 5 MIPI Camera Serial Interface 2 lanes to compute real-time depth images and accelerate output.\n- New advanced stereo depth algorithm for accurate depth perception and long range.\n- A set of image sensors that enable capturing of disparity between images up to 1280 x 720 resolution.\n- Support for the cross-platform, open-source Intel® RealSense™ SDK 2.0.\n- Dedicated color image signal processor for image adjustments and scaling color data.\n- Active infrared projector to illuminate objects to enhance the depth data.\nIntel® RealSense™ Depth Camera D415 is designed to best fit your prototype. With the rolling image shutter and narrow field of view (69.4° x 42.5° x 77°), Intel® RealSense™ Depth Camera D415 offers high depth resolution when object size is small and more precise measurements are required.\nFor more information regarding Intel® RealSense™ Depth Cameras and Intel® RealSense™ technology, go to intelrealsense.com.\nThe latest release of the Intel® RealSense™ SDK 2.0 is available on our GitHub page at https://github.com/IntelRealSense/librealsense/.\nWARNING This product can expose you to Antimony oxide (Antimony trioxide), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.\n|Depth Technology||Active IR stereo|\n|Main Intel® RealSense™ component||- Intel® RealSense™ Vision Processor D4\n- Intel® RealSense™ module D410\n|Depth Field of View (FOV)\n(Horizontal × Vertical × Diagonal)\n|65°±2° x 40°±1° x 72°±2°|\n|Depth Stream Output Resolution||Up to 1280 x 720|\n|Depth Stream Output Frame Rate||Up to 90 fps|\n|Minimum Depth Distance (Min-Z)||0.3 m|\n|Sensor Shutter Type||Rolling Shutter|\n|Maximum Range||Approx. 10 meters; Varies depending on calibration, scene, and lighting condition|\n|RGB Sensor Resolution and Frame Rate||1920 x 1080 at 30 fps|\n|RGB Sensor FOV\n(Horizontal x Vertical x Diagonal)\n|69.4° x 42.5° x 77° (+/- 3°)|\n(Length x Depth x Height)\n|99 mm x 20 mm x 23 mm|\n|Connectors||USB-C* 3.1 Gen 1|\n|Mounting Mechanism||- One 1/4-20 UNC thread mounting point\n- Two M3 thread mounting points\nLimited Warranty period: 1 year.\nHow do I get a warranty replacement?\nContact Intel customer support or chat with an agent.\nManufacturer Contact Information\nTechnical Support: https://www.intel.com/content/www/us/en/support.html\nReturn within 30 days of delivery date.\nTo submit a return, please go to My Account -> My Orders -> Return or Replace Items\nDefective or dead on arrival\nPlease access your My Account to exchange the product.\nIntel® RealSense™ Store will exchange for the same model number.\nThis item is covered by store.intelrealsense.com return policy.\n|Country of origin||Thailand|\nThis hardware is subject to the U.S. Export Administration Regulations and other U.S. law, and may not be exported or re-exported to certain countries (Cuba, Iran, North Korea, Sudan, and Syria) or to persons or entities prohibited from receiving U.S. exports (including Denied Parties, Specially Designated Nationals, and entities on the Bureau of Export Administration Entity List or involved with missile technology or nuclear, chemical or biological weapons).\nIntel® RealSense™ Depth Camera + AAEON® UP Squared Board\nIntel® RealSense™ Depth Camera + Intel® NCS2","domain":"optical_engineering"}
{"url":"https://westheider.com/index.php/2018/11/18/to-the-stars/2/","date":"2019-07-21T14:42:14Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195527048.80/warc/CC-MAIN-20190721144008-20190721170008-00113.warc.gz","language_score":0.9513562321662903,"token_count":271,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__122271654","lang":"en","text":"That certainly was a pleasant surprise and I could see myself getting an actual telescope now. Little did I know then that a telescope is a different beast entirely.\nWhen I was 99% positive that Deep Sky Photography is for me I got me a telescope. There are basically 2 flavours: Refractor and reflector telescopes, the former being the kind of telescope you’d imagine – a tube with lenses where light enters through the front lens element and exits on the opposite end, the latter using mirrors instead of lenses. And then there are different types of reflector telescopes on top of that. I got a Newton reflector telescope that has a large curved primary mirror in the back which reflects the incoming light to a flat secondary mirror at a 45° angle and into the eye piece from there.\nAfter putting the telescope together and shooting a couple of mostly blurry pictures I figured I needed to calibrate the mirrors. This is called collimation and it took me around 3-4 days to get the hang of it because, you know, there’s an infinite number of ways you can arrange the mirrors so that you get a sharp image for mere observation purposes, but you can’t fool a DSLR: The focal plane has to be parallel to the camera’s sensor and there’s only one setting to achieve that.","domain":"optical_engineering"}
{"url":"https://www.plus100years.com/health-tips/how-are-anti-glare-glasses-useful","date":"2022-12-08T05:24:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446711278.74/warc/CC-MAIN-20221208050236-20221208080236-00816.warc.gz","language_score":0.9438914060592651,"token_count":239,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__103457101","lang":"en","text":"Many use goggles or glasses for protection, vision care, or even for glamour and fashion. If you are a regular user of glasses, you must have certainly come across the branding of optic companies promoting eyeglasses having an anti-glare coating.\nThe main purpose of using anti-glare glasses is to eliminate the light reflections that fall on the eyeglass lenses from front and back surface. Anti-glare glasses are also known as anti-reflective glasses.\nAnti-glare glasses offer several benefits to an individual. Some of them are:\nReady-to-wear blue light glasses and anti-glare glasses are easily available in the market. However, if you have a special requirement for example anti-glare coating for bifocal and progressive lenses then you can get them done from your expert optician on prescription. So, with all these wonderful benefits there is no doubt that the next time you will be buying glasses, you will definitely choose one with an anti-glare coating.\n\"We would greatly appreciate it if you kindly give me some feedback on this article\"","domain":"optical_engineering"}
{"url":"https://mainframeaudio.com/carthree-360-degree-bird-view-panoramic-system-4-hd-cameras-around-view-system-with-night-vision-dvr-parking-monitoring-driving-record-universal-rear-view-cam-for-all-car/","date":"2020-07-14T11:01:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-29/segments/1593657149819.59/warc/CC-MAIN-20200714083206-20200714113206-00136.warc.gz","language_score":0.917149543762207,"token_count":573,"dump":"CC-MAIN-2020-29","global_id":"webtext-fineweb__CC-MAIN-2020-29__0__75644425","lang":"en","text":"Why You choose 360 around view system? ☛ 360 around view system captures images synchronously from 4 wide-angle cameras mounted in the front, rear, left and right of the car. ☛ Through a series of image processing, the system finally generates a bird view picture which also called full view focused on the car and its surroundings. ☛ It helps the driver see everything clearly around the car, which can make driving safer. ☛ Besides the full view, the system also has some other useful features, for example, Ultra night vision, track, DVR and more.\nFeatures: Full View: excellent image fusion, complete elimination of blind spots, no delay. Image Setting: Users can set the field of single view, image brightness and full view position. Local Playback: 4-channel 720P playback, supports fast forward and rewind. Driving Record:the system will auto record when the car acc on recod 4 channels video\nBrief of the recording function: ►The system will automatically start recording when the car ACC ON, with loop recording for every 3 minutes. For a 16GB Card can last about 20 hour. ►When the car is ignited and the monitor doesn’t show the video from the cameras, the system will record in the background. The bird view and the front view will be recorded. ►When the car is ignited and the monitor is showing the video from the cameras, all the scenes displayed on the monitor will be recorded. ( It could be the bird view and one view of left, right, front, or rear view).\nPlease be noted: This product does not include the display, it has an AV OUT connector, you can connect your DVD, navigation, monitor which have AV IN connector.\n- ►360 degree view car camera system can clearly and truly show your car’s driving condition, you can see any part of your car’s position, make your driving easy and safe\n- ►You can choose a different angle to view your car’s surroundings, and it automatically switches the view when you turn and reverse\n- ►Can display the bird’s-eye, front and rear views, making it possible to check the vehicle’s 360-degree surroundings simultaneously with either the front and back\n- ►Super HD Night Vision Without Light CarThree 360 car view camera use the high quality sensor and fu 6 Glass, With the uniquetechnology of strong light suppression and noise reduction, makes it like daytimewithout any light. t solves the stubborn illness that can not be seen at night, andmakes the night no longer dark\n- ►A convenient installation car with a harmless appearance,If buy this car rearview camera, you will eliminate most of the blind spots, makes much easier for parking and passing the narrow road.","domain":"optical_engineering"}
{"url":"https://morganoptical.net/","date":"2023-09-26T00:19:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510100.47/warc/CC-MAIN-20230925215547-20230926005547-00012.warc.gz","language_score":0.959664523601532,"token_count":444,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__242765648","lang":"en","text":"HIGH-QUALITY SHOOTING GLASSES\nIt doesn’t matter whether you’re practicing at a shooting range or out on a hunt; there are certain mandatory safety precautions that must be taken when operating firearms. One of the most important are shooting glasses. If you’re looking for a reliable pair of glasses to protect your eyes, look no further than Morgan Optical Sport Glasses.\nThe place to go for the ultimate selection of shooting glasses\nWe offer a huge variety of prescription and non-prescription shooting glasses in many styles, colors, and lenses. Morgan Optical isn't just a company; “Morgan” is our family name. We take personal pride in our products and stand behind them. That's why we have been the experts for your shooting glasses since the late 1970s.\n$229.00 – $239.00\nThe Falcon Pro shooting glasses have withstood months of field testing, shooter feedback and trials in our Product Development Lab. Shooters are armed with a larger […]\nRIACT Like Never Before: RE Ranger RIACT A.I.™ low light, mid-light, and bright light lenses were crafted so you can see faster, see further, and see […]\nGET CLEAR VISION AND PROTECTION\nI have now received my glasses and would like to thank you for your great service. I am absolutely over the moon with them and will be wearing them for the first time to shoot tomorrow. They are the best fitting glasses that I have ever owned and I will be passing on your name to my shooting colleagues.\nI was very pleasantly surprised to see my glasses on the doorstep when I just got home today. Thanks for the quick turnaround! They seem to fit perfectly. I did not see an invoice. Thanks again for the great service.\nThe RX Insert arrived this morning - thank you. I'm over the moon with them, they're absolutely brilliant. The distance lens is spot on and the fast delivery time was amazing. I'd like to tell Randolph USA just how good your service was.","domain":"optical_engineering"}
{"url":"https://elobra.de/en/pages/lichtlexikon","date":"2022-05-28T08:18:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652663013003.96/warc/CC-MAIN-20220528062047-20220528092047-00742.warc.gz","language_score":0.9130569696426392,"token_count":633,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__128912370","lang":"en","text":"… indicates how much luminous flux hits a certain surface. The unit of measurement is lux (lx) . The formula for illuminance is: Luminous intensity in candela (cd) divided by the distance2 (/ Radius2) between the light source and the surface.\n… gives the color temperature engl. CCT (correlated color temperature) in Kelvin (K). It is used to describe the light. For an exact determination, however, the temperature of the Plank radiator is required.\n… is a form of individual lighting control. A dimmer can be used to set the desired brightness of a lamp and adapt it to its tasks.\n… is a rating scale for the European energy label. Every device that consumes energy is divided into these classes by the EU. Energy efficiency class A means low energy consumption, B and C mean energy consumption, all other classes mean very high consumption and should be avoided. werden.\n… is a measure to quantitatively determine the color impression of a light source. A distinction is made, for example, between warm white, neutral white and cold white. The unit of color temperature is Kelvin (K).\n... is the unit of color temperature and describes the color of a light source. (see also CCT and color temperature). Comfortable light has 2000 to 3300 Kelvin, cold, radiant light like in large warehouses has over 5300 Kelvin. LEDs, for example, can cover the entire span.\n… stands for light-emitting diode and denotes an electronic semiconductor component which emits light when a current flows through it. Leds are very economical in comparison to conventional incandescent lamps, have a significantly longer service life and can reproduce a wide range of color temperatures..\n… is a measure of the efficiency of light sources. It indicates how much energy is required for a certain luminous flux. The light output is given in lumens per watt (lm / W). The following applies: the higher the value, the better the yield.\n… is the spectral composition of a self-illuminating light source. It is also determined by the stimulus triggered in the eye and brain. It is used to characterize a light source and is represented, for example, by the light and color temperature.\n… indicates how much light a light source emits in total per unit of time. This value describes the brightness of a light source and, by adjusting the light intensity unit candela, is a good indication of your required output.\n... is the physical unit for the illuminance of a light source. It indicates how much luminous flux from a light source falls on a surface. A lux meter is used to check whether a light source is bright enough. You can also find the calculation under - Illuminance.\n… are light sources with which you can easily replace old light bulbs with LED bulbs, as these are compatible with conventional sockets. Halogens can also be replaced by LEDs.den.\n… is the unit for electrical voltage. Volt describes the amount of energy that is present in the individual electrons. Formula symbol: U","domain":"optical_engineering"}
{"url":"https://djmixclubsa.co.za/beamz-bpp225-led-par-64-14x18w-468396.html","date":"2021-04-17T02:44:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038098638.52/warc/CC-MAIN-20210417011815-20210417041815-00064.warc.gz","language_score":0.8545377254486084,"token_count":284,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__247907199","lang":"en","text":"Beamz BPP225 LED PAR 64 14x18w\n14x 18W RGBAW-UV IR DMX This light effect has 14x 18W LEDS and is housed in a lightweight PAR 64 can. It can be operated via various DMX settings in 2 separate controllable LED rings. Due to the colour technology this light has fourteen LED modules with big lenses (45mm), so you have the ability to mix any colour! It has been specially designed to enrich the wash possibilities and to ensure a better convergence of light. With the pre-programmed effects and strobe/fade function you are able to create an astonishing light show. The extra Power Connector output enables you to simply link the power of multiple units together into a single socket. Also comes with an IR remote control. Beam angle: 25° Field angle: 40° No. of colours: 6 Colours: Red, Green, Blue, Amber, White, UV No. of LEDs: 14x 18W DMX channels: 2, 3, 5, 6, 10, 11, 12 or 22 DMX connection: 3-pin XLR Mode: DMX and Stand-alone Connector: Power connector input/output. Power supply: 100-240VAC / 50-60Hz Consumption: 200W Display: LED Dimensions: 230 x 280 x 350mm Weight: 2.9kg.","domain":"optical_engineering"}
{"url":"https://www.finlandmlbforum.com/read-blog/1728_when-choosing-a-nano-spectrophotometer-there-are-a-few-important-factors-to-take.html","date":"2023-06-06T07:21:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652235.2/warc/CC-MAIN-20230606045924-20230606075924-00752.warc.gz","language_score":0.9162791967391968,"token_count":1235,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__110023999","lang":"en","text":"The fundamental concept behind how micro spectrophotometer work is that the absorption of substances by light (or the wavelength of light) is selective. Since different substances each have their own unique absorption light band, the spectral analysis that is performed on a solution takes into account which wavelengths of light in the spectrum are going to be absorbed by the solution after the spectrum has been passed through the solution. Beer's law states that there is a proportional relationship between the concentration of the substance in a solution and the amount of light energy that is lost at a given wavelength. This relationship holds true in accordance with Beer's law.\nSpectrophotometers come in a wide variety of types, but the most common ones fall into one of three categories: a simple type, a mid-range type, or a type. When selecting a spectrophotometer, Freeze dryer (find a good store) is necessary for us to take into account the following factors.\n1. wavelength detection range and wavelength selection mode: the wider the wavelength detection range of the instrument, of course, the higher the price also is; the user needs to choose the appropriate wavelength range according to their needs; for simple type of instrument, wavelength selection mode is generally manual find; the repeatability of this way is poor; type of instrument in the wavelength can be automatically found or scanned in accordance with the set mode, followed by 1. wavelength detection range 1. wavelength detection range 1. wavelength detection range 1. wavelength detection range 1. wavelength detection range 1. wavelength detection range\nBeam: Single-beam, dual-beam, and quasi-dual-beam types are the three categories that make up the beam type category. Single-beam spectroscopy is typically appropriate for measuring absorbance at a specific wavelength, but freeze dryer is not possible to perform a full-band spectral scan and freeze dryer calls for an exceptionally stable light source and detector. Double-beam spectroscopy, on the other hand, enables automatic recording and a rapid full-band scan. Pseudo-double beam, also known as proportional double beam, has the advantage of monitoring the error caused by light source changes, and its principle is that the light from the same monochromator is divided into two beams, one beam reaches the detector directly, and the other beam reaches the other detector after passing through the first detector. This method is particularly well-suited for structural analysis because it can eliminate the influence of an unstable light source, detector sensitivity changes, and other factors. It is also known as proportionalHowever, this strategy does not get rid of the influence that is brought on by the reference ratio.\n3. Light source: the visible area is lit primarily by tungsten lamps and tungsten halogen lamps (320 nm to 2500 nm); the ultraviolet area is lit primarily by hydrogen lamps and deuterium lamps (180 nm to 375 nm); a xenon lamp can be used as a light source in both the visible and ultraviolet areas.\n4. sample holder: simple sample holder for the push-pull quadruple pool holder, where only one sample can be measured at a time, the reference and sample in two measurements; type of cuvette holder for two fixed, respectively, the sample opinion and reference opinion, where you can measure the absorbance value of the reference and sample at the same time.\nSlit: The slit of the simple type is typically in a mode of fixed width, and the width of the slit is typically 2 nm, but it can also be 1.5 nm. The slits of the instruments of the type, on the other hand, can be continuously adjusted so that they can conform to the requirements of high resolution.\n6. Indicators of optical performance High and low optical performance have a direct impact on the accuracy of the measurement; the grating technical indicators are particularly important in this regard. Type instrument grating quality is superior, generally speaking zui best grating for the concave type, and the larger the size of the concave grating corresponds to the number of grooves, which means that the resolution and stray light indicators are better than the simple type instrument.\n7. detector: a detector is a device that makes use of the photoelectric effect, in which the light signal is passed through a solution and then converted into an electrical signal. An electrical signal amplification device is also used. Photosensitive diodes are typically used in simple type instruments; silicon photodiodes are utilized in mid-range type instruments; and type instrument detectors typically make use of high sensitivity photomultiplier tubes and infrared detectors.\n8. Display: simple type instruments are typically mechanical meter heads or digital tube displays, and they do not have a data processor; type instrument displays are typically of the liquid crystal variety or are connected to a computer, and data processing can either be done by the instrument itself or by an external computer.\n9. measurement mode: simple type instruments are mostly fixed-point (fixed wavelength) absorbance or transmittance measurement, and they essentially cannot be wavelength scanning measurement; type instruments have more measurement modes, and they can display transmittance, absorbance, concentration direct reading, single beam, single point, and scanning, among other measurement options.\n10. measurement accessories: when evaluating the quality of an instrument, one essential factor to consider is whether or not the instrument comes with a comprehensive collection of accessory measurement devices. Some examples of these types of devices include polarization accessories, integrating sphere accessories, reflection accessories, autosampler accessories, chromaticity analysis software, and film accessories.\n11. Measuring the state of the sample: visible and ultraviolet spectrophotometers are generally used to measure liquid samples, whereas infrared spectrophotometers can generally analyze various states (gas, liquid, and solid) of the specimen.\nThe qualitative and quantitative analysis of a substance can be performed with the help of a spectrophotometer. This device works by measuring the amount of light absorbed by the substance being measured at a particular wavelength or within a particular wavelength range.","domain":"optical_engineering"}
{"url":"http://www.moseseyecare.com/medical-testing/","date":"2018-01-22T22:30:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084891543.65/warc/CC-MAIN-20180122213051-20180122233051-00268.warc.gz","language_score":0.8908275961875916,"token_count":459,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__253034266","lang":"en","text":"Moses Eyecare offers this amazing technology that lets us more thoroughly evaluate the back surface of your eye. With this photo, we can detect glaucoma, macular degeneration, diabetes, high blood pressure, and many other ocular diseases. More importantly, we can compare these photos from visit to visit to monitor change. Patients really appreciate this technology because the doctors at Moses Eyecare take the time to explain the photo of their very own eye!\nAnterior Segment Photography\nWhile most photography is centered on the retina, or the tissue in the back of the eye, Moses Eyecare also focuses on the front surface of the eye called the cornea and other outer structures.\nThese photographs can help monitor healing in corneal abrasions, dry eye, allergies, corneal degenerations, and much more. Not only is it a wonderful tool for the doctors, it allows you, the patient, to see first hand what the doctor sees!\nThese special machines are used in the treatment and diagnosis of the optic nerve and its surrounding tissue.\nThey help to detect subtle changes that might otherwise go unnoticed especially in glaucoma management.\nOften, these machines can detect thinning in the nerve fiber layer before vision is lost making it a standard procedure for any glaucoma patient at Moses Eyecare Centers.\nThe visual field is used to test peripheral and central vision. Many eye and brain disorders can cause visual field abnormalities. For example, optic nerve damage caused by glaucoma creates a very specific visual field defect.\nOther vision problems associated with blind spots developing within the visual field include optic nerve damage from disease or toxic exposure or damage to the inner lining of the eye (retina). It also can monitor any visual loss caused by certain medications.\nCorneal topography or corneal mapping is a noninvasive, 3D imaging technique for determining the topology of the surface curvature of the cornea, the outer structure of the eye.\nThis can be important in eye diseases like keratoconus or the fitting of contact lenses.It is also useful for pre and postoperative LASIK patients to monitor healing. The procedure is carried out in seconds and is completely painless.","domain":"optical_engineering"}
{"url":"https://www.modivision.net/facebar-oem/?lang=en","date":"2023-12-08T02:34:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100710.22/warc/CC-MAIN-20231208013411-20231208043411-00726.warc.gz","language_score":0.8524865508079529,"token_count":542,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__140438188","lang":"en","text":"FaceBar by MODI\nThe cameras specially developed for biometric person detection within this unit make a delusion pointless. The interplay between the color camera, infrared camera, daytime and night-time LEDs makes it possible to record the best possible picture of a person even in unfavorable conditions such as backlight or darkness.\nThe proactive, automatic settings of the unit, e.g. the automatic camera alignment (Camera Tilting Unit) to capture both tall and wheelchair users, the additional lighting integrated into the camera unit such as LED and infrared sensors, which are used depending on the ambient lighting, allows the perfect person identification.\nThe MODI products have been specially developed for immediate person control. Unlike CCTV cameras, which monitor a specific area to evaluate as many people as possible at the same time, MODI specializes in detecting nearby people and ensures accurate and rapid identification through biometric face balancing.\nIn contrast to other identification systems, such as fingerprint sensors or card readers, whose speed always depends on the persons, the biometric procedure can be passed on without previous knowledge. Thus, the MODI system saves a maximum of time and guarantees a smooth passenger passage, rather than relying on the correct placement of the finger or on a quick ID Card handling of the passenger.\nCoated plastic and aluminum housing,\ncolor freely selectable\n0°C to 45° C (32°F to 113°F)\nHumidity range during operation:\n0-80% not condensing\n0°C to 80°C (-22°F to 176°F)\nHumidity during storage:\n0-80% not condensing.\nProtection: IP 0\n2 x Relay Out max 30 A\n2 x Open Collector NPN max 30 V\n4 x Opto Isolation 12V – 30V\n24VDC +/- 10% 10 A (for the lighting) 5V via USB\n1x USB 2. 1x USB 3\nCE, ICAO, NIEM compliant\n2x Infrared camera:\n0,3 MP (640 P x 480 P), 100 fps\n1x Color camera:\n2 MP (1.920 P x 1.080 P), 30 fps and motorized\n2 x 4 LED x 850nm\n2 x 4 LED\n0.06 sec per 15°\nAfter capturing the person, the image is sent to the Database & Matching Server via the BioControl Client located in the gate, where the biometric data is compared. This match works without the person having to hold in front of the FaceBar. The recording takes place immediately, directly, “on-the-move”.","domain":"optical_engineering"}
{"url":"http://knowhatyouknow.com/the-invention-of-spectroscopy/","date":"2022-01-26T13:29:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320304954.18/warc/CC-MAIN-20220126131707-20220126161707-00515.warc.gz","language_score":0.9082707762718201,"token_count":214,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__136979135","lang":"en","text":"- Spectroscopy is an analytical method used to study the interaction between matter and electromagnetic radiation ( for example, light).\n- When a prism is placed in front of a ray of light, a rainbow of colours is formed. Like this:\n- The Romans were the first to discover the ability of a prism to disperse light.\nA spectroscope is any device that displays the spectrum of light emitted from any type of matter, for example, gas or a metal that is lit on fire. The spectrum created is characteristic of the type of matter. In 1802, the English scientist William Hyde Wollaston first observed dark lines within the spectrum of sunlight. The following diagram depicts his experiment (in his book “A method of examining refractive and dispersive powers, by prismatic reflection”, pages 378-380):\nHere is a painting of William Hyde Wollaston:","domain":"optical_engineering"}
{"url":"http://mvasiaonline.com/Theia-Technologies/fisheye-dealer-Singapore.html","date":"2023-06-05T23:00:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652184.68/warc/CC-MAIN-20230605221713-20230606011713-00409.warc.gz","language_score":0.8987176418304443,"token_count":148,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__182364972","lang":"en","text":"Theia's multi megapixel fisheye lenses for 360° camera applications such as top-down cameras used in small rooms. The lenses can be used for sensors up to 12 megapixels (4K resolution) and offer high image quality at the edges of the image, just where this type of camera needs good resolution.\n- Ultra high resolution for 5 MP, 8 MP, and up to 12 MP 4K cameras\n- IR corrected for Day/Night operation\n- IR cut module/mount is available\n- Supports high megapixel 1/2.5”, 1/2.3”, 1/2\" sensors\n- 4K Resolution Fisheye: TY180","domain":"optical_engineering"}
{"url":"https://magazine.einsteinmed.edu/winter-spring-2021/detecting-neural-activity-in-near-infrared-light/","date":"2023-12-06T10:10:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100593.71/warc/CC-MAIN-20231206095331-20231206125331-00844.warc.gz","language_score":0.9364363551139832,"token_count":328,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__58822072","lang":"en","text":"The ability of fluorescent proteins (FPs) to serve as building blocks of biosensors allows scientists to observe normal and pathological biological processes in live cells in real time. FPs that emit visible light were previously available, but only recently have FPs glowing in the near-infrared spectrum been developed, thanks to the work of Vladislav Verkhusha, Ph.D., professor of anatomy and structural biology at Einstein, and his lab.\nIn a study published online in October 2020 in Nature Biotechnology, Dr. Verkhusha and colleagues report the next advance in optical imaging. Using two near-infrared FPs, they have engineered a calcium biosensor that can detect evoked and spontaneous calcium fluxes in the brain, which is an indicator of neural activity. The biosensor is stimulated by and emits near-infrared light, which penetrates deeply into biological tissues with minimal scatter; this allows scientists noninvasively to observe activity in neurons deep within living animals.\nThe near-infrared calcium biosensor can be combined with biosensors functioning in visible light, which allows for spectral “crosstalk-free” imaging of several simultaneous biochemical intracellular processes.\nDr. Verkhusha and his team constructed a hybrid microscope combining fluorescence and photoacoustic imaging. The hybrid microscope can “see through” the skulls of living mice, simultaneously using the near-infrared calcium biosensor to monitor neuronal activity as well as photoacoustics to track blood oxygen levels in the brain. The new calcium biosensor should prove useful in preclinical studies involving animal models.","domain":"optical_engineering"}
{"url":"https://www.bysoho.com.au/products/baxter-blue-nat-champagne","date":"2020-09-29T11:31:35Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401641638.83/warc/CC-MAIN-20200929091913-20200929121913-00056.warc.gz","language_score":0.8858181238174438,"token_count":250,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__65211530","lang":"en","text":"or make 4 interest-free payments of\nBaxter Blue blue light glasses - to stop digital eye strain.\nThe Look: Sophisticated / Elegant / Stylish Quality: Lightweighthandcrafted frames made from custom cellulose acetate with premium spring hinges for an improved fit. Fit: Medium/Large Size: 49-18-140\nFashionable and functional - we now have you covered inside and outside!\nOur range of blue light glasses alleviate the symptoms of digital eye strain by filtering out blue light and eliminating glare.\nThe Blue+ lenses are the solution your eyes have been crying out for. With our blue light filtering technology embedded into our lenses where it filters out 50% of the highest energy wavelengths associated with digital eye strain.\nOur Blue+ lenses are virtually clear with a very subtle tint (hardly noticeable when worn) and combined with one of our stylish frames, you have protective eyewear you will be happy to wear anywhere!\nGlare from screens can create stress on our eyes and our Blue+ lenses have a premium anti-reflective coating to reduce glare and provide better contrast when viewing your digital screens – making it even easier to enjoy Netflix, read the news or check your emails.","domain":"optical_engineering"}
{"url":"https://smartphoneports.com/how-your-phones-light-sensor-might-secretly-spying-on-you/","date":"2024-03-05T12:02:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707948234904.99/warc/CC-MAIN-20240305092259-20240305122259-00659.warc.gz","language_score":0.9325714707374573,"token_count":354,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__128484226","lang":"en","text":"Hey, did you know your phone’s light sensor might be spying on you? Tech experts found out that it can be a bit sneaky. Hackers might use it to follow your every move! They can even use fancy computer stuff to see what’s in front of your screen.\nImagine a stranger using your light sensor to check if your face or hand is in front of your smart device.\nPeople usually say to turn on your camera only when needed. Some even cover their cameras with tape or disconnect them to keep prying eyes away.\nBut here’s the thing: light sensors could be another way for bad guys to spy on you. Hopefully, tech companies will make sure future devices are more secure.\nLet’s talk about how someone could spy on others using light sensors. Later, I’ll explain how smart computer tech has made imaging better. Ever wondered how a light sensor can spy on people?\nWell, scientists at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) created a super-smart algorithm. It can use the light sensor to see what’s happening around your screen.\nMost phones use these sensors to do cool things like adjusting the screen brightness in the dark. These sensors are so good that they can notice even tiny changes in brightness.\nIt’s like the things around you make shadows, and the light sensor can pick up on those shadows.\nThis person named Yang Liu and their team used a smart computer program to turn the sensor data into pictures. Think of it like shadows on a gray background. What’s even cooler is that the computer turns these pictures into a video that moves in real time. Neat, huh?","domain":"optical_engineering"}
{"url":"http://davidszondy.blogspot.com/2016/04/new-imaging-technique-provides-drones.html","date":"2017-04-26T21:26:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917121665.69/warc/CC-MAIN-20170423031201-00368-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8834088444709778,"token_count":201,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__169381597","lang":"en","text":"University College London (UCL) has released images of the Martian surface with five times the resolution of anything previously sent back from Mars orbit. The images come courtesy of the new Super-Resolution Restoration (SRR) imaging technique developed by a UCL research team, which takes images from spacecraft orbiting Mars and stacks and matches them to create new, more detailed images of the Beagle 2 lander, ancient Martian lake beds, and the tracks of the NASA MER-A rover.\n.. Continue Reading New imaging technique provides \"drone's eye\" view of Mars\nUniversity College London\nSimplified optical receiver would cut cost of fiber-to-the-home broadband\nDNA analysis may provide early warning of breast cancer\nDoctors can now use an app to better predict preterm birth risk\nBetter antibacterial surfaces, courtesy of ... maggots?\nFruit flies study identifies gene that could help treat Parkinson's\nWorld record Internet data transfer rate almost 50,000 times faster than broadband","domain":"optical_engineering"}
{"url":"https://www.slacker.xyz/single-post/what-lens-should-i-get","date":"2020-11-30T11:57:50Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141213431.41/warc/CC-MAIN-20201130100208-20201130130208-00166.warc.gz","language_score":0.9632760882377625,"token_count":2663,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__78951197","lang":"en","text":"What lens should I get?\nIt's a valid question... I used to Google search the same thing back before I went to college. Lenses are essential to filmmaking and photography, they're they eye of the camera. When starting out, you want the most bang for your buck.\nI own a 17mm-85mm lens for my Canon C100, I could only afford one lens at the time so I wanted to cover all of my bases. I wanted a wide lens for filming primitive Slacker videos (which was a stylistic choice and still is), but I wanted a more narrow lens for close ups and portraits. Sounds great right? Well, let's talk about the different parameters you should look at when selecting a lens. We've got a lot to talk about, if you'd rather watch videos on the subject, we've linked some trusted sources for you to watch through near the bottom of this post.\nthe focal length of a lens is defined in millimeters from the point of convergence to the sensor/film. People like to say that it has to do with the diameter of the front element, or that it's the measurement of length between the rear element to the sensor. Those are wrong.\nLenses are complex as hell. They can use one singular piece of glass (called an element) to manipulate the light, or they can use a lot, like the Canon 70-200mm f/4 which has 20 elements and 15 groups. There isn't anything wrong with either option. They will give off different looks but that's all subjective and you really shouldn't worry too much about that right now. The differences aren't that apparent.\nThere are two kinds of lenses, prime lenses with a fixed focal length, or zoom lenses, with a variable focal length. Going back to my 17-85mm zoom lens, it sounds great until you understand some limitations of zoom lenses. Cheap zoom lenses are the worst. Don't even bother. They don't look good when zoomed all the way in. They lose sharpness, which makes everything look slightly out of focus. Cinema zoom lenses like these $45,000 Canon 30-300mm and 14-60mm don't have that problem. Don't get too excited though, they still suffer from a slightly less problematic shortcoming that we'll talk about in a bit.\nI don't want you using the zoom function on your lenses until you understand composition. People are too quick to use the zoom function of their to \"fix\" a shot rather than just physically moving the camera. If you are shooting portraits and you're too close, don't zoom out, back up. focal lengths change perspective. Think of it like you're driving up to a house. You can see the roof of the house from far away. As you get closer, you start to lose sight of the roof until you're right there in the driveway and can no longer see it. Same principal. Zooming in or out rather than moving forward and back can do different things. In the animation of the tree, you notice how the perspective changes. Once you start to analyze the motion, you really start to understand perspective. If we were to crop the part of the animation where the camera appears the furthest away from the tree, you'll find that it matches the part where the person zoomed all the way in.\nI know the cropped photo is a pixelated mess, but bear with me. These are the same photo. note the mountains in the background, the rocks in the foreground. Everything matches. That's how perspective is affected. Theoretically, if you had a camera with a high enough resolution, you could shoot the shot on the right with a 17mm lens and crop in to get the final photo. That's an option as well, but don't forget about the limitations of your camera's resolution. Don't plan on cropping unless you know that your camera's resolution can handle it without pixelating your final image.\nNow if we're talking about human faces, those are affected as well. Humans don't look flattering in wide focal lengths. It almost forms a caricature look by exaggerating features. Noses look bigger, foreheads pop more. It doesn't look great. To contrast, zooming in too far will make your subject look like Gumby, just a flat mass. Again, this is subjective, but I prefer to take my portraits using focal lengths between 50mm and 135mm.\nLandscapes, skate videos, and real estate listings with shots of rooms look great with wide lenses. They're meant to highlight the big picture. See as much as you can. But again, it's all subjective, it depends on how much depth you want, which we'll talk about later.\nThe aperture is like the pupil of the lens. Just like your eye, the bigger the opening of your aperture, the more light will enter your camera and hit your sensor. We're in the process making a huge video on exposing photos and videos correctly, but for now, lets just talk about what it means in correlation to choosing a lens. Lenses are very straight forward with their names. A 50mm F/1.7 lens is a 50 millimeter lens with a maximum aperture of f/1.7. The lower the number, the larger the hole. Think of it like piercing or gun ammo size. Anyways, bigger apertures let in more light, they are also contribute to \"depth\" or \"depth of field.\" Lenses with a large maximum aperture (lower number) are considered \"fast\" and are more expensive. Letting in more light combined with more depth is considered a good thing. Obviously that means lenses with a smaller maximum aperture (higher number) are \"slower.\"\nI like depth of field. I like bokeh (when light sources make balls of light when they're out of focus in the background of a photo). I shoot my portraits with a lot of depth of field.\nSome zoom lenses have two aperture numbers. In the case of my 17-85mm Canon lens, mine reads f/4-5.6. That second number is another set back to zoom lenses. Even those $45k lenses we looked at earlier have this problem. The first number is the maximum aperture when you're \"zoomed out\" or as wide as your lens will let you get. The second number is the maximum aperture size when you're \"zoomed in.\"\nFor those who are looking at a variable maximum aperture zoom lens, hear me out. In terms of exposure, a variable maximum aperture lens could be an issue. You'll have to change your camera settings to compensate for the full stop of light you lose dropping down to a f/5.6 from a f/4 just because you zoomed in. In terms of depth of field, it could be an issue as well.\nI'm also not saying variable max-aperture lenses are bad, I'm just letting you know what to look for. I own plenty of them.\nThere is such a thing as a constant maximum zoom or fixed aperture zoom lenses, don't have the same problem. As long as it's sharp, you won't have any real drawbacks.\nThe relationship between Focal Length and Aperture\nThe glass itself has an effect on depth as well. The longer the focal length, the more depth. There's a reason that GoPros, with their wide field of view have everything in focus. Wide lenses don't have as much depth of field as longer lenses do. a 135mm lens should, no matter what aperture setting you use, still have some depth of field.\nI'm not saying that wider lenses don't have any depth, some do if you have a large enough aperture, but for the most part, it is very minimal.\nWhen I film Slacker videos in my home office/studio space, I use a wider lens and I use bright lights to expose me more so that I can use a smaller aperture which darkens my background, while also keeping me in focus. I move a lot, lean forward and back, if I didn't use a smaller aperture opening, I would go in and out of focus constantly. I use a wide lens for two reasons. I like the look, I'm a former sk8er boi, and because I don't have a lot of room to work with. I usually use a 28mm lens.\nWide angle lenses are defined by having a focal length shorter than 50mm. 49mm lenses are considered wide, as well as 38mm, 28mm, 16mm. They have a wider field of view than normal lenses.\nA normal lens is defined as having the same field of view as the human eye. 50mm is the focal length that most people agree shows images from the same perspective as your eyes.\nA lens that has a focal length longer than 50mm. They have a more narrow/magnified field of view than normal lenses. They also have more depth of field.\nThis is basically a long lens that is actually shorter than it's listed focal length. Its essentially a compact long lens. Long lenses are sometimes called telephoto lenses, which is incorrect. I mean, they're the same, but they're not. All telephoto lenses are long lenses, all long lenses are not telephoto lenses.\nWith a macro lens, you can focus very very close to the camera, these lenses are made for taking photos of very small things... bugs, leaves, toy cars. They still come in different focal lengths, which means they still have different fields of view. They can be wide like the new 24mm probe lens, or they can be longer like my 70-205 macro lens.\nTilt shift lenses physically tilt and shift in front of the camera, hence the name. They are used to either fix perspective, or to make things look like miniatures. This is a highly specialized lens.\nThis is another very specialized lens that allows for a wider aspect ratio than traditional 16:9. What it does is it essentially compresses the image horizontally, so that everything looks super skinny. When played back, it has to be \"desqueezed\" or \"stretched\" either digitally or projected through an anamorphic projector lens to undo the horizontal compression. The end result is a wider image aspect ratio than the film or sensor could create without the anamorphic lens.\nNot to be confused with a wide lens, fisheye lenses are very wide but they come with distortion. Although fisheye lenses are wide angle lenses, not all wide angle lenses are fisheye lenses. They're so wide that they distort straight lines in an image, making them curve. This is the kind of distortion you see on action cameras, such as GoPros.\nVintage vs Modern\nI shoot a lot of things on vintage lenses. In fact, I buy them cheap off of ebay, take them apart, restore them, and sell them. I keep the best ones. Mirrorless cameras adapt vintage lenses to them very easily, other cameras can only adapt certain vintage lenses to your camera. We'll cover vintage lenses in a different post at a later time. for this, you'll have to do some of your own research to find out if you can adapt vintage lenses and vintage lens mounts to your camera. If you can, you'll have to watch out for sensor cropping.\nTo make it easy, full frame sensors have no crop factor. 35mm APS-C sensors have a crop factor of 1.5x (Nikon) or 1.6x (Canon). Micro 4/3 sensors have a crop factor of 2x. This means that a 35mm Full Frame lens adapted to a Micro 4/3 sensor would turn that lens into a 70mm lens. Very similar to the principal we brought up earlier with the tree animation.\nVintage lenses are also fully manual most of the time. They have a physical aperture ring that you use to select your aperture. There is no auto focus. There is no image stabilization. As a professional, you shouldn't use auto settings at all, but image stabilization really helps when no tripod is available. I use it on my Sony A7S II which uses the sensor to stabilize the image rather than the lens.\nThis next video explains lenses very well, BUT he calls longer lenses telephoto lenses. Remember that all telephoto lenses are long lenses, but not all long lenses are telephoto. See above for more.\nSo what lens should I get?\nHonestly, it's up to you.\nIf you're really indecisive and can't figure it out, comment below what you want to photograph. Tell me about what you want to do with your camera, what you want to film with it, shoot with it, whatever. Tell me about the camera you want, and I'll suggest a lens for you.\nOther than that, I hope you learned something!","domain":"optical_engineering"}
{"url":"https://www.richardsonapparatus.com/shop/foxfury-d3060-ir-light-richardson-apparatus-9748","date":"2023-11-28T16:53:38Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679099892.46/warc/CC-MAIN-20231128151412-20231128181412-00535.warc.gz","language_score":0.9094077348709106,"token_count":289,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__52576349","lang":"en","text":"The FoxFury D3060 IR is a small format drone and utility light.\nIt has strobe-capable 30° and 60° dual infrared LEDs that operate independently to provide 360° lighting. The waterproof D3060 is rechargeable via USB-C and offers best-in-class durability. It lasts 1.5 to 3 hours on a single charge, and only weighs 1.3 oz (37 g). Its various mounting options enable it to be used as a drone or utility light.\nThe D3060 IR uses 940nm infrared LEDs that are invisible to the naked eye, but are visible to night vision goggles..\nThe D3060 has two independent infrared lights. They can be turned on independently or simultaneously. Both lights have low, high, and strobe modes.\nThe base plate of the D3060 swivels 360°, allowing the user to rotate the light in any direction necessary.\nThe D3060 comes with (2) Dual Lock Reclosable Fasteners, so users can mount it to almost any drone. Strap inserts and button holes are built into the Base/MOLLE mount, so users can wear the light on helmets, clothing, bags, vests, etc.\nApply to be a Tax Exempt Entity\nHave us help you decide\nPut in a request for information below and we'll get back to you as soon as possible.","domain":"optical_engineering"}
{"url":"https://www.sunanshul.com/led.html","date":"2021-12-01T05:32:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964359093.97/warc/CC-MAIN-20211201052655-20211201082655-00428.warc.gz","language_score":0.8899410963058472,"token_count":238,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__52880665","lang":"en","text":"Our range of products include\n1) 19W LED Street Light 2) LED Street Light\n3) SMART LED Street\n4) Light Canopy Street light\n5) Dimmable Street Light\n6) High Power Street Light\nKeeping the diverse requirements of customers in mind we are instrumental in providing Canopy Street Lights\nWe have highly acknowledged organization engaged in presenting a remarkable range of\n1) LED Round Ceiling Light.\nOur company has also gained name and fame in presenting\n2) LED Square Down Light.\nOur product range includes a wide range of\n1) 100W Flood Light\n2) Indoor Flood Light\n3) LED Flood Light\n4) Water Proof Flood Light\n5) Alluminium Flood Light\n6) Night Flood Light\nWe are able to provide smart solution in this segment as per the need of your business and offer innovative solutions to you. With the help of smart and latest technology, better products and competitive pricing we guarantee that you can target more customers using visual communication more effectively.\nSmart LED systems which provide a cost effective way to deal with lighting issues and this is done by integrating the efficient LED lights and powerful motion sensors","domain":"optical_engineering"}
{"url":"https://www.compressortech2.com/news/Q.E.D.-Releases-Laser-One-Analyzer/8009182.article","date":"2021-03-04T12:15:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178369054.89/warc/CC-MAIN-20210304113205-20210304143205-00326.warc.gz","language_score":0.9009413719177246,"token_count":228,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__214398886","lang":"en","text":"Q.E.D. Releases Laser One Analyzer\nBy DJ Slater09 November 2020\nQ.E.D. Environmental Systems, Inc., an environmental products manufacturer and subsidiary of Graco Inc., has introduced the Huberg Laser One natural gas leak analyzer.\nThe portable natural gas leak analyzer, available in North America, detects methane using a tunable diode laser absorption spectroscopy. The detector offers all of the advantages of optical detection in a compact and portable device, making it ideal for surveying networks, the company said.\nThe Laser One features accuracy detection down to 0.5 ppm in a response time of 2.5 seconds or 3.5 seconds with a probe. It is not sensitive to cross-gas contamination and does not require a gas cylinder for operation, which makes it suitable for detecting natural gas leaks in underground natural gas distribution networks. The analyzer can also be used for underground and above-ground pipelines.\nThe analyzer is ATEX and IECEX-certified for safe operation in Zone 1 areas. Proprietary software offers the ability to integrate into data reporting systems.","domain":"optical_engineering"}
{"url":"https://research.chinaknowledge.com/product/uroica-precision-information-engineering-300099/","date":"2021-10-19T06:48:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-43/segments/1634323585242.44/warc/CC-MAIN-20211019043325-20211019073325-00386.warc.gz","language_score":0.9487841129302979,"token_count":135,"dump":"CC-MAIN-2021-43","global_id":"webtext-fineweb__CC-MAIN-2021-43__0__67491721","lang":"en","text":"Uroica Precision Information Engineering Co., Ltd, formerly Uroica Mining Safety Engineering Co., Ltd., is a China-based company principally engaged in military, coal mine safety and communication businesses. The Company conducts its businesses mainly through three segments. The Military segment is mainly engaged in the research and development, integration and production of optoelectronic technology, as well as the research, development and production of optical systems. The Coal Mine Safety segment mainly provides products and technical services related to monitoring, underground transportation and engineering construction, including roof safety monitoring and controlling equipment for the prevention of coal mine collapse and others. The Information and Communication segment mainly provides traffic information products and services.","domain":"optical_engineering"}
{"url":"http://www.themahony.org/index-110.html","date":"2024-02-27T01:38:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474669.36/warc/CC-MAIN-20240226225941-20240227015941-00622.warc.gz","language_score":0.8834238648414612,"token_count":1123,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__159165421","lang":"en","text":"Listen to this article\n3D depth cameras play a significant role in enabling autonomous navigation in robots, tractors, forklifts, etc. DepthVista (e-con Systems’ 3D time of flight camera) comes with the ability to deliver both depth and RGB data in a single frame – making it possible to do obstacle detection and object recognition simultaneously. Learn the key features and target applications of DepthVista, and the top 6 reasons why it could be the perfect depth camera for your embedded vision application.\nIn recent years, depth sensing technologies have emerged as a popular technique to aid robots, tractors, remote patient monitoring systems, etc., with autonomous navigation and object detection. In the design of a 3D depth sensing camera, the accuracy of depth measurement is one of the most critical requirements. In addition, the ability to provide color (RGB) information for performing object recognition can be a game changer. With these in mind, e-con Systems – a leading embedded camera manufacturer and solutions provider – has designed a 3D time of flight camera called DepthVista.\nThis article discusses in detail the features and benefits of using DepthVista in embedded vision applications that rely on depth.\nDepthVista – High Resolution 3D ToF Camera\nDepthVista is a 3D depth camera based on the Time of Flight (ToF) technology. It is an RGBD camera housing the below camera modules:\n- ToF depth camera with a depth sensor and dedicated depth processor for depth measurement.\n- RGB camera with the AR0234CS global shutter CMOS sensor from onsemiTM and a dedicated high performance Image Signal Processor (ISP) for object recognition.\nDepthVista offers both depth information and RGB data in one frame. Its depth sensor streams a resolution of 640 x 480 @ 30 FPS and the color global shutter sensor streams HD and FHD @30 FPS.\nThe following figure shows the front view of DepthVista mounted on a tripod:\nTop 6 reasons why you should consider DepthVista for your depth-based embedded vision application\nBetter 3D precision\nWith the high resolution depth sensing ability, DepthVista achieves precise 3D depth measurement in addition to offering high quality RGB images. The calibration of the 850nm high performance VCSEL diodes with sensor timing results in more 3D detail. Also, the calibration is perfectly carried out by merging the RGB frame with the depth data to enable object recognition using a single frame.\nCompatibility with UVC standards\nDepthVista is UVC compliant and will work with the standard drivers available with Windows and the Linux OS.\nLow light performance\nDepthVista uses a VCSEL of wavelength 850nm (in the NIR spectrum) which is safer for human eyes. It does not require ambient illumination for optimal performance and hence operates in low light or even in absolute darkness.\nComputational load reduction\nThe new-age time of flight camera from e-con Systems provides ready-to-use depth data from the camera itself – thereby reducing the computational load on the host.\nMultiple operational modes and scalable depth ranges\nAs mentioned before, DepthVista has the ability to deliver both depth and RGB data for obstacle detection and object recognition. Further, it comes with two operational modes – the far mode and the near mode. The depth ranges for these two modes are as follows:\n- Far Mode: 1000 mm to 6500 mm\n- Near Mode: 200 mm to 1200 mm\nYou can switch between the two modes based on your application requirements.\nIn addition to this, DepthVista supports nine data modes which are explained below:\nDepthVista is a compact depth camera as it is equipped with integral illumination next to the lens.\nDepthVista – Best fit camera for AMRs\nAMRs (Autonomous Mobile Robots) such as warehouse robots, service robots, cleaning robots, and companion robots can effectively and efficiently perform navigation, path planning, obstacle detection, and object recognition using DepthVista. Also, the two operational modes make it suitable for a wide variety of use cases such as people detection (with the far mode) and quality inspection or volume measurement (with near mode).\nOther targeted applications\n- Robotic arms\n- Autonomous guided vehicles\n- People counting in Retail Analytics\n- 3D Facial recognition based anti-spoofing devices\n- Remote patient monitoring\nTo know more about the features and benefits of the product, please visit the DepthVista product page. Alternatively, you can get a quick overview of the product by watching the below video:\nTo get all the queries related to the product answered, please visit the FAQ page.\nThe upcoming DepthVista models\n- DepthVista_MIPI_IRD – Compact sized ToF depth camera with MIPI interface. This camera board supports the NVIDIA® Jetson AGX Orin™/Xavier™ development kit.\n- DepthVista_USB_IRD – Compact sized and UVC compatible 3D ToF camera.\nThese models use VCSEL laser diodes that can operate in NIR range of either 850nm or 940nm for both indoor and outdoor environments as two product variants.\nIf you are interested in integrating embedded vision cameras into your products, kindly write to e-con Systems at [email protected]. You could also visit the Camera Selector to get a complete view of e-con Systems’ camera portfolio.\nSponsored content by e-con Systems","domain":"optical_engineering"}
{"url":"https://sciencekits.sg/products/clementoni-super-microscope-1200x","date":"2023-12-02T08:13:06Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100381.14/warc/CC-MAIN-20231202073445-20231202103445-00012.warc.gz","language_score":0.875234842300415,"token_count":182,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__190244460","lang":"en","text":"Clementoni - Super Microscope 1200X\n- Ready for experimenting with and discovering all the secrets of science? Thanks to this incredible kit with over 100 experiments, the fun never ends!\n- Contains all the essentials for completing the experiments and getting acquainted with chemistry, physics, botany and optics in an easy, fun and engaging way.\n- Children’s microscope: a true professional microscope that is easy to use to study the microcosm and expand it up to 1200 times.\n- MICROSCOPE LABORATORY: over 50 experiments, exercises and special tests for fun with science.\n- Contents: a rich equipment that comes with which to observe the world around us: plastic blades, glasses, pipettes and magnifying glass\\\n- Optical microphone: with adjustable LED light in intensity and tilt, sample display is easy.\n- Recommended for ages 8+","domain":"optical_engineering"}
{"url":"http://milipol.b2b-match.com/index.php?page=cat_par&params%5Bid%5D=269","date":"2021-12-06T13:55:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363301.3/warc/CC-MAIN-20211206133552-20211206163552-00065.warc.gz","language_score":0.8858972191810608,"token_count":497,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__130069024","lang":"en","text":"CCTV, optical products\nWhat we offer:\nCCTV and Machine Vision: the Security of Seeing Everything\nFujinon’s extensive product range of CCTV and Machine Vision lenses features the perfect optical system to satisfy all requirements:\nBesides a wide choice of Varifocal- and Zoom lenses supporting standard resolutions, Fujinon offers a continuously growing product range of megapixel lenses. Weather Varifocal or Zoom lens – all lenses deliver high quality images in HD resolution.\nSpecial IR corrected lenses allow surveillance by day and night.\nBest suited for the surveillance at long distances – like at airports or harbours - are the Telezoom lenses delivering magnification factors up to 55x and 60x and a maximum focal length of 2200mm.\nSpecial tasks in image processing require special lenses. In the field of Machine Vision the customer is able to choose between several series of high resolution lenses for 2/3” and 1”. All lenses for Machine Vision feature low distortion and are equipped with locking knobs for iris and focus. Thanks to the small size and short MODs these lenses will fit perfectly into you existing system.\nSpecial lenses round off the wide product range. For instance, the range includes Fish Eye lenses offering 185° angle of view as well as lenses for 3CCD and UV cameras.\nBINOCULARS: Reality right up close\nWith their exceptional quality, Fujinon binoculars are famous throughout the world. Fujinon has developed top-class binoculars, especially for professionals and semi-professionals, for a variety of purposes, including not only applications aboard seagoing vessels, for border surveillance and rescue missions but also for astronomical observation. Products range from the 7 x 50 model customised for marine conditions through to the 40 x 150 ED, the largest binocular in the world.\nIn the segment of stabilised binoculars, Fujinon again offers top-notch technology. The broad range encompasses both low-cost models, like the Techno-Stabi 14 x 40, and specially customised versions, like the highly developed Stabiscope S1240 Day/Night equipped with interchangeable night-vision eyepieces complete with image intensifiers.\nFujinon binoculars bring reality right up close-with brilliant images.\nWhat are we looking for:","domain":"optical_engineering"}
{"url":"https://anran-cctv.com/faq-items/q-why-does-wireless-camera-system-send-so-many-email-or-app-false-alert?lang=en","date":"2024-02-29T17:47:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474852.83/warc/CC-MAIN-20240229170737-20240229200737-00045.warc.gz","language_score":0.936743974685669,"token_count":261,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__115258511","lang":"en","text":"*Check Original Page: Why does wireless camera system send so many email or APP false alert?\nTo explain this question, we need know the theory how motion detection works.\nThe NVR system can detect small image optical change. It can be triggered by small image change from camera. Image is transmitted by light signal.\nTherefore, even if there is no object in front of camera such as human, animal or car, system may still be triggered by small light change such as floating cloud, shaking leaf.\nMost customers hope the system can only be triggered by big object like people and ignore small movement. But based on the theory how motion detection works, there are false alarm.\nIt is hard to say the system is faulty since not only ANRAN brand system faces such issue, but also other brands who use light sensor to work for motion detection function.\nHow to reduce email and APP false alert?\n1. To reduce false alarm, you can turn the sensibility to lower and set the alarm area. (The alarm area defaults to all areas have been selected.)\n2. Click “Arming Time”, you can set the notifications time of email alert and APP alert.\n3. Please upgrade your camera (you can upgrade it from the network server)","domain":"optical_engineering"}
{"url":"https://logitech-apps.com/logitech-b525-software/","date":"2020-09-28T04:40:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401585213.82/warc/CC-MAIN-20200928041630-20200928071630-00155.warc.gz","language_score":0.8383623957633972,"token_count":526,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__163525218","lang":"en","text":"Logitech immerses a high-quality sensor combined with Logitech RightLight ™ two technology into the Logitech® Webcam B525 HD webcam to produce precise, high-quality 720p HD resolution even if used in a room with low lighting conditions or when an object is facing backlight. Also, this camera equipped with a Carl Zeiss® lens and sharp autofocus feature so that every detail contained in documents or other artifacts can be seen up close without reducing image quality.\nOn the audio side, Logitech provides a stereo microphone that ensures precise and clear sound quality.\nWith a field of view of 69 degrees, the B525 captures head-and-shoulder frames that are ideal for interference-free video conferencing.\nThe top of the webcam can be rotated 360 ° so that the user can position the camera quickly to various points of view as desired, such as turning it back to get privacy. Besides that, Logitech® Webcam B525 HD can also be folded and put into a laptop bag or pocket, so it is ideal for use by professionals who have high mobility.\nLogitech® Webcam B525 HD is designed to be used optimally with the Microsoft Lync and Skype applications and has supported the most commonly used UC and video conferencing platforms.\nTo start using it, users plug it into the USB port and immediately launch their favorite video call application – without the need to install special software or make complicated arrangements.\nThe B525 offers enhanced integration with BlueJeans, Broadsoft, LifeSize Cloud, Vidyo, and Zoom.\nLogitech B525 HD Webcam Specification\n- Full HD 1080p video calling (up to 1920 x 1080 pixels);\n- 720p HD video calling (up to 1280 x 720 pixels) with supported clients\n- 69° diagonal field of view\n- Rightlight™ 2 Technology for clear image in various lighting environments, even low light\n- 1 omni-directional mic\n- Hi-speed USB 2.0 certified\n- UVC compliant (no software installation required)\n- Universal clip with 360° swivel\n- Windows® 7 or higher\n- macOS® X 10.7 or higher\n- One USB 2.0 port\n- Internet access\n|Camera||1.1 in (29 mm)||68.5mm (2.69 inch)||2.7 in (68.5 mm)||88g (3.12 ounce)|\nLogitech B525 HD Webcam Manual\nLogitech B525 HD Webcam Software & Drivers","domain":"optical_engineering"}
{"url":"http://2053.info/news.php?action=show&id=39057","date":"2019-06-25T16:44:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-26/segments/1560627999853.94/warc/CC-MAIN-20190625152739-20190625174739-00254.warc.gz","language_score":0.7272636890411377,"token_count":182,"dump":"CC-MAIN-2019-26","global_id":"webtext-fineweb__CC-MAIN-2019-26__0__155495466","lang":"en","text":"The FastPictureViewer Codec Pack contains image decoders ( codecs) that enables robust support for 45+ image formats Windows Photo Gallery, Windows Photo Viewer, Windows Live™ Photo Gallery , on Windows 7, including RAW formats from more than 580 digital cameras in Windows Explorer 8. Also within Windows Media Center Windows Media Player 12 with full 64- bit compatibility. Mamiya c330 instruction manual pdf. Canon Canon FX film camera combined with a point shot digital camera - jp EF 50mm 1: 1.\n8 white painted with extension for macro - jj.\nView and Download Mamiya C330 instructions manual online. Mamiya Digital Camera Instructions C330. C330 Digital Camera pdf manual download.\nView and Download Mamiya C330S instruction manual online. Mamiya C330 Professional ' ' S' ' twin- lens reflex camera. C330S Digital Camera pdf manual download.","domain":"optical_engineering"}
{"url":"https://pcge.eu/2023/12/samsung-introduces-cutting-edge-isocell-vizion-sensors-perfect-for-robotics-and-xr-innovations/","date":"2024-04-24T02:43:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818999.68/warc/CC-MAIN-20240424014618-20240424044618-00349.warc.gz","language_score":0.8847541809082031,"token_count":860,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__54055813","lang":"en","text":"Samsung introduces two new sensors, the ISOCELL Vizion 63D and ISOCELL Vizion 931, designed for enhanced visual capabilities in robotics and extended reality, featuring a time-of-flight sensor with integrated depth-sensing hardware and a global shutter image sensor for rapid movement capture.\n- The ISOCELL Vizion 63D is the industry's first iToF sensor with an integrated depth-sensing hardware image signal processor, reducing system power consumption.\n- The ISOCELL Vizion 931 is a global shutter image sensor, capturing rapid movements without distortion.\n- Both sensors offer design flexibility and are currently being sampled to OEMs worldwide.\nSamsung Electronics has launched two new sensors as part of its ISOCELL Vizion lineup: the ISOCELL Vizion 63D and the ISOCELL Vizion 931. These sensors are designed to enhance visual capabilities in various applications, including robotics and extended reality (XR).\nThe ISOCELL Vizion 63D is a time-of-flight (ToF) sensor that measures distance and depth by calculating the time it takes for light to travel to and from an object. It is an indirect ToF sensor that measures the phase shift between emitted and reflected light to sense its surroundings in three dimensions. This sensor is ideal for service and industrial robots, XR devices, and facial authentication, where high-resolution and precise depth measuring are crucial. It is the industry’s first iToF sensor with an integrated depth-sensing hardware image signal processor (ISP), enabling a reduction in system power consumption. The sensor can process images at up to 60 frames per second in QVGA resolution and achieves high VGA resolution within a compact optical format. It also boasts enhanced light sensitivity and reduced noise for sharper image quality.\nThe ISOCELL Vizion 931 is a global shutter image sensor designed to capture rapid movements without distortion. Unlike rolling shutter sensors, which scan the scene line by line, global shutter sensors capture the entire scene at once, resulting in sharp, undistorted images of moving objects. This sensor is well-suited for motion-tracking in XR devices, gaming systems, robots, and drones. It is optimized for iris recognition, eye tracking, facial and gesture detection in head-mounted display devices. The ISOCELL Vizion 931 achieves high quantum efficiency and incorporates advanced technologies to maximize light absorption.\nBoth the ISOCELL Vizion 63D and ISOCELL Vizion 931 sensors offer design flexibility and are currently being sampled to OEMs worldwide. Samsung aims to drive innovation in the image sensor market with these advanced sensors.\nAbout Samsung: Samsung, a South Korean multinational conglomerate, has established itself as a global leader in various industries, including electronics, technology, and more. Founded in 1938, Samsung's influence spans from smartphones and consumer electronics to semiconductors and home appliances. With a commitment to innovation, Samsung has contributed products like the Galaxy series of smartphones, QLED TVs, and SSDs that have revolutionized the way we live and work.\nFinancial Turmoil at EKWB: A Tale of Unpaid Bills, Exploited Employees, and Disgruntled Creditors\nDeepCool introduces the sleek CH160 ITX case, a compact marvel for tech enthusiasts.\nThe Razer Kishi Ultra: Unleashing Mobile Gaming Control for iPhone 15 Series, Android, and iPad Mini.\nAOC introduces Graphic Pro U3 Series Monitors, Designed for Professionals and Creators\nCORSAIR releases HS35 v2 Series: Elevating Gamers’ Audio Experience Across Multiple Platforms\nNZXT about to launch the H6 Flow RGB, a HYTE Y60’ish Mid tower case\nIntel’s CPU Roadmap: 15th Gen Arrow Lake Arriving Q4 2024, Panther Lake and Nova Lake Follow\nHYTE teases the “HYTE Y70 Touch” case with large touch screen\nNZXT set to launch a non RGB version of the H6 Flow case\nNVIDIA’s Data-Center Roadmap Reveals GB200 and GX200 GPUs for 2024-2025","domain":"optical_engineering"}
{"url":"https://shop.thefoxmagazine.com/products/canon-eos-80d-digital-slr-kit-with-ef-s-18-135mm-f-3-5-5-6-image-stabilization-usm-lens-black","date":"2018-02-25T17:06:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-09/segments/1518891816841.86/warc/CC-MAIN-20180225170106-20180225190106-00363.warc.gz","language_score":0.9473387598991394,"token_count":130,"dump":"CC-MAIN-2018-09","global_id":"webtext-fineweb__CC-MAIN-2018-09__0__157685209","lang":"en","text":"Canon EOS 80D DSLR\nWhether raising your game to SLR level photography or having fun with a feature-rich, versatile SLR you can use pretty much anywhere, the EOS 80D camera is your answer. For next-level AF operation, the EOS 80D camera has a wide-area, 45-point, all cross-type AF system. Excellent in dim light, it has improved low luminance performance to EV -3 and is compatible with most EF lenses. Merging power, precision and operability, the EOS 80D is a dynamic SLR camera for anyone ready to realize their creative vision.","domain":"optical_engineering"}
{"url":"https://aboutmacrophotography.wordpress.com/the-basics/stacking-lenses/","date":"2018-04-20T06:43:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125937161.15/warc/CC-MAIN-20180420061851-20180420081851-00539.warc.gz","language_score":0.941957950592041,"token_count":357,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__85037762","lang":"en","text":"Close-up lenses measure their power in diopters with the formula.\nThe technique of Stacking Lens typically involves using a telephoto lens on your camera as your normal lens, then taking a shorter focal length lens and using a filter to filter adapter, mount it to the telephoto in a reversed position. When you are doing this, you are essentially using the reversed lens as a supplementary close-up lens. So using the above formula reversing a 100mm lens would be a +10 Close-up; while a 50mm lens would be a +20 Close-up! You can easily see why 50mm and shorter lenses are a favorite for this technique.\nTo stack two lenses you need a filter to filter adapter. These are also sold as male to male adapters or as macro-coupling rings. If you can’t find an adapter with the filter size you need, you can mate it with a step-up or step-down ring, like the one pictured here. In this case it is a 58mm to 77mm adapter that is attached to a 77mm to 72mm step-down ring.\nMagnification of Stacked Lenses\nThe above formula does not account for any extension that may already be built into the lens. You can also add your own extension to increase the magnification. You can also increase your magnification with a multiplier or tele-convertor. A multiplier will multiply your magnification.\nA problem you can run into with stacked lenses is vignetting, or the darkening of the corners of the frame. This is why it is always a good idea to use a fast lens, like a 50mm f/1.8 as your reversed lens.\nContinue with next section: Reversing Lenses","domain":"optical_engineering"}
{"url":"https://indusplumbing.ca/products/laser-distance-measure-165-ft-dewalt","date":"2024-04-15T12:44:54Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296816977.38/warc/CC-MAIN-20240415111434-20240415141434-00063.warc.gz","language_score":0.8210580348968506,"token_count":179,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__189003864","lang":"en","text":"LASER DISTANCE MEASURE 165 FT DEWALT\nThe DEWALT DW03050 can measure out to 165 ft. using its Class 2 Laser. This measurer can calculate area and volume; automatic calculations make job estimates quick and easy. The DW03050is backed by a DEWALT 3 Year Limited Warranty for added peace of mind.\n- Indirect height measurement uses Pythagorean calculations to measure distances even when point A and/or point B isn’t accessible for linear measurement\n- Memory unit stores last 5 measurements\n- 2-line backlit display helps improve screen visibility in both dim and bright conditions\n- Durable design with over-molded housing, 6 ft. (2m) drop tested, and IP65 water/debris resistance\n- Accuracy +/- 1/16 in.\n- Great solution for range meter measurement modes","domain":"optical_engineering"}
{"url":"https://biotech-spain.com/en/articles/the-universitat-jaume-i-develops-a-new-single-pixel-photo-camera/","date":"2021-06-25T06:38:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-25/segments/1623487622113.11/warc/CC-MAIN-20210625054501-20210625084501-00175.warc.gz","language_score":0.9427179098129272,"token_count":1000,"dump":"CC-MAIN-2021-25","global_id":"webtext-fineweb__CC-MAIN-2021-25__0__56442216","lang":"en","text":"Researchers from the UJI (Universitat Jaume I) Optics Research Group (GROC) in Castelló, Spain, have developed a new tool for the field of scientific imaging. A sensor of just one pixel can record high-quality images and distribute them securely, that is, without allowing non-authorised people access to information.\nIn 2009, Willard S. Boyle and George E. Smith received the Nobel Prize in Physics for having succeeded in capturing images with a digital sensor. The key lay in their design of a procedure that recorded the electrical signals generated via the photoelectric effect in a large number of image points, known as pixels, in a short period of time. The CCD sensor in a photo camera acts as the human-eye retinal mosaic. Since their invention, the use of the digital format for recording images has revolutionised various fields, photography amongst them, as it facilitates image processing and distribution.\nNowadays, digital cameras with CCD sensors of 5, 6 and even 12 million pixels are common. As the dimension of sensors is always the same (typically, 24.7 square millimetres), one may logically think that the higher the number of pixels, the better the image quality will be. However, this idea is not quite right as there are other factors involved, such as the quality of the lens. Conversely, more memory is needed for storing these images (the size of a 6-million pixel digital camera image is about 2 Mb).\nIn recent years, the world of image technologies has become a booming scientific field, mainly because of biomedical applications. Holographic microscopes, light-operated scissors, laser scalpels, and so on, have enabled the design of minimally invasive diagnosis and surgery techniques. In this context, one amazing possibility that researchers have recently demonstrated is that of capturing high-quality digital images with a sensor using just a single pixel. This technique, baptised by scientists as ‘ghost imaging’, is based on the sequential recording of the light intensity transmitted or reflected by an object illuminated by a sequence of noisy light beams. This noisy light is what we observe, for example, when we illuminate a piece of paper using a laser pointer.\nThe GROC researchers have successfully captured 2D object images (such as the UJI logo or the face of one of the maids of honour from the famous Las Meninas painting as reinterpreted by Picasso in 1957) using this amazing single-pixel camera. The key for the success lies in the use of a small 1-inch LCD screen, similar to that used in video projectors or those we have at home, but in miniature. Its properties or features can be modified using a computer in order to generate the necessary light beams.\nFurthermore, the researchers from Castelló have demonstrated, for the first time and on a worldwide scale, the possibility of adapting the technique in such a way that it allows an image to be securely sent to a set of authorised users using a public distribution channel, such as the Internet. The information transmitted is a simple numerical sequence that allows the image to be retrieved, but only if one knows the hidden codes enabling the generation of the noise patterns with which the pubic access information has been created.\nThe first results of this study, which is still under way, were published in the first July issue of the journal Optics Letters, and a month later Nature Photonics, the main journal in optics, included a review of it in its September issue, in the section containing the most relevant articles published in the field.\nThe technology applied to the single-pixel camera had not yet been used for image encryption, but it is being studied now by several research groups – including GROC– to obtain images of biological tissues which, because of their unusual transparency or their location in the more internal parts of the body (some centimetres under surface mucus), are difficult to view using pixelated devices such as those of today’s digital cameras. Furthermore, the researchers point out that using this technique for image encryption will improve safety in image transmission, product authentication, or will simply hide information from undesired people, thus making it a highly efficient tool against data phishing.\nGROC is made up of around ten researchers under the coordination of Professor Jesús Lancis. It conducts its activity within the Department of Physics and the recently created Institute for New Image Technologies at the UJI. In addition to image technologies, the group is participating in a national project on ultrashort and ultra-intense laser pulses, which is financed by the Consolider Ingenio programme of the Spanish Ministry of Science and Innovation and the Seventh Framework Programme of the European Union. The project aims to establish this technology in Spain through the Pulsed Laser Centre in Salamanca (CLPU), a singular strategic infrastructure, which has the Spanish Government’s approval.","domain":"optical_engineering"}
{"url":"http://videlco.eu/hdmi20-optc-rx220-pro.html","date":"2018-11-18T08:15:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039744320.70/warc/CC-MAIN-20181118073231-20181118095231-00537.warc.gz","language_score":0.7622159719467163,"token_count":649,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__174092300","lang":"en","text":"The HDMI20-OPTC-TX/RX220-Pro is a HDMI 2.0 compatible extender pair for video, RS-232 and Gigabit Ethernet signals, supporting uncompressed 4K UHD resolution at 60Hz 4:4:4. This extender pair is particularly recommended for rental and staging applications, 4K live events, and for future-proof operation centers. The extender can transmit\nHDMI 2.0 signals with 18Gbps over one multimode fiber to a distance of up to 600 meters*.\nUsing the factory, custom or transparent EDID emulation the user can fix and lock EDID data on the HDMI connector. Advanced EDID Management forces the required resolution from any video source and fixes the output format conforming to the system requirements. The unit offers bi-directional and transparent RS-232 transmission and two separate Gigabit Ethernet signals over the fiber connection.\nAll devices can be mounted on a rack shelf or used standalone, rack ears also serve easy handling and bump protection, mounting threads on top and one of the sides to conform strict installation safety regulations.\nThe device features Pixel Accurate Reclocking, a Lightware technology to eliminate jitter and skew generated by low quality sources and multiple daisy-chained devices.\nGalvanic isolation between source and display helps avoiding ground loops and hum effects. No delay occurs in the signal during optical conversion, the video image is transported without frame latency. This feature is crucial in 3D applications and systems where audio is processed separately.\nArtikelnummer 8622-0464-01 Administrator Lightware Lieferzeit 2-3 Tage\n- Built-in Event Manager automation feature\n- Supports HDMI 4K signal formats (4K UHD @60Hz RGB 4:4:4, up to 18 Gbps)\n- Supports HDMI 3D signal formats (frame packing, side-by-side and top-bottom)\n- HDMI 2.0, HDMI 1.4 and DVI 1.0 compliant\n- Bi-directional RS-232 extension (pass-through and control)\n- No signal latency, zero frame delay\n- Single Fiber Technology\n- Dual output with built-in distribution amplifier\n- Color subsampling option on outputs (4:4:4 to 4:2:0 downconversion)\n- Advanced EDID Management\n- Advanced EDID Management in transmitter\n- Command injection on RS-232 and IR ports\n- Multiple TCP/IP connections\n- Intuitive control software for device configuration\n- Device control via Ethernet (TCP/IP), RS-232 and USB\n- No video compression\n- Splitting of 4K UHD at 60Hz to two output ports with left and right half of the original video\n- Built-in universal power supply\n- Directly mountable in 19\" rack\n- Breakout LC connector for Neutrik OpticalCON Duo unused fiber channel\n- EtherCON ruggedized LAN connector\n- Active fan cooling\n- Front to back cooling airflow\nDatenblatt d//hdmi20_optc_series_vd-eu.pdf (735.5 KB )","domain":"optical_engineering"}
{"url":"http://simonrkzk924.uzblog.net/2-details-individuals-do-not-really-comprehend-regarding-to-lasik-eye-procedures-5479707","date":"2018-11-13T23:10:03Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-47/segments/1542039741510.42/warc/CC-MAIN-20181113215316-20181114001316-00239.warc.gz","language_score":0.9555240273475647,"token_count":883,"dump":"CC-MAIN-2018-47","global_id":"webtext-fineweb__CC-MAIN-2018-47__0__74356361","lang":"en","text":"2 Details Individuals Do Not Really Comprehend Regarding To LASIK Eye ProceduresThe eye can be examined with relative ease as to both its function and its structure. A practical evaluation includes the capability to relocate the orbit and the response of the pupil to light and lodging.\nThe function of the eye might be evaluated in numerous methods. The patient might be asked to identify illuminated letter or items of varying sizes on exactly what is called the Snellen chart.\nOn the other hand, the examination of the structural part of the eye might be made in several ways. Stress within the eyeball is measured by a \"tonometer.\" In certain illness, especially in glaucoma, the tension in the eyeball is increased markedly.\nNevertheless, it needs to be well bore in mind that a patient with an eye issue might have other problems also. Typically other physical conditions are main and impact the eye as a consequence. The look of the eye can notify the client and the physician to problems in some disruptions of other parts of the body even before other signs provide themselves.\nOne's dependence on sight is highlighted when one deals with a temporary or possible long-term loss of this essential sense. Hence, when corrective measures are sought, certain types of vision correction such as contact lenses or glasses are recommended.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to motivate decreased utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nEssentially, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgery is another form of vision correction. The only difference is that with this type of surgery, one's vision is remedied completely.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe primary purpose of this surgery is to develop a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, enabling much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nAmidst the growing appeal of LASIK eye surgery, there are still disadvantages that individuals must understand. Probably, the primary reason why this kind of eye surgery has actually become well accepted is due to the fact that the majority of its cases had actually achieved success.\nNevertheless, in spite of its success, there are still some drawbacks. Here is the list:\n1. It is an discover here operation applied to the most delicate part of the eye\nSince LASIK eye surgery involves the operation of the retina, which is among the most sensitive parts of the eye, many individuals say that the operation can be very risky.\nIn other words, a simple error could nearly trigger an individual's lifetime blindness. Thus, it is very important to think about many elements prior to choosing whether LASIK eye surgery is the right restorative step one needs to go through.\n2. It is not a perfect procedure\nLASIK eye surgical treatment may remedy your vision however it does not necessarily mean that it can offer you a ideal vision. Even if statistical reports reveal that 70% of the clients may have 20/20 vision, this does not necessarily imply they have ideal vision also.\nOffered all these things, it can be deduced that, over at this website in spite of the appeal of the operation, LASIK might not constantly be the perfect eye surgical treatment see this the way many people view it\nConversely, the examination of the structural part of the eye may be made in a number of methods. It should be well kept in mind that a patient with an eye problem might have other issues. Frequently other physical conditions are primary and affect the eye as a consequence. The appearance of the eye can notify the physician and the patient to troubles in some disruptions of other parts of the body even before other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgery is another form of vision correction.","domain":"optical_engineering"}
{"url":"http://aestoreid.com/samsung-galaxy-s4/147-galaxy-s4-screen-protector-steinheil-.html","date":"2018-01-18T04:14:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084887065.16/warc/CC-MAIN-20180118032119-20180118052119-00122.warc.gz","language_score":0.8621743321418762,"token_count":191,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__85548643","lang":"en","text":"Oleophobic & Optic\nUltra Crystal film is a high quality film with a hard surface. It protects the LCD screen from scratches and is crystal clear for absolutely no interference in display clarity.\nUltra Fine film is a high quality film with a slightly textured film with 30% increased light transmittance. The Ultra Fine is effective in preventing glare, smudges and fingerprints\n2 Item Items\nWarning: Last items in stock!\nUltra Oleopobic film features an oil-resistant coating to prevent smudges resulting from oil, cosmetics, and other contaminants. Any marks and fingerprints can be wiped away easily.\nUltra Optics film is premium grade screen protector that features a microlens array surface layer. The microlens array on the surface of this matte anti-fingerprint film dramatically increases the light transmittance while offering an excellent, smooth surface texture with smudge resistant property.\nNo customer reviews for the moment.","domain":"optical_engineering"}
{"url":"https://www.suprabhatenterprise.com/digital-microscope.html","date":"2021-04-20T20:09:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039490226.78/warc/CC-MAIN-20210420183658-20210420213658-00456.warc.gz","language_score":0.6884286403656006,"token_count":651,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__83628847","lang":"en","text":"Approx. Rs 4,990 / PieceGet Latest Price\n|Minimum Order Quantity||1 Piece|\n|Model Name/Number||G600 4.3 Inch LCD HD 1-600x 3.6mp High Expansion|\n|Light Source||8 LED lights (adjustable brightness)|\n|Lens Type||16Bit DSP The biggest pixel: 1080P Lensoptical size: 1/6.5\"|\n|Image Output||640*480/26fps ,1280*720/26fps|\n|Focus Range||10~40mm(to watch the distant view)|\n|Video Resolution||VGA; 720P|\n|Image Sensor||Screen size: 4.3 inch high screen Sensors|\n|Dimension||16 x 12 x 6.5 Centimeters|\nG600 4.3 Inch LCD HD 1-600x 3.6mp High Expansion 1080p/720p/VGA Image Sensor with Adjustable Stand for QC/Industrial/Collection Inspection.Features:\n1. Full functions, clear image, fine workmanship, battery replacement, connection to a computer, compact and portable, support for up to 12 languages, etc.\n2. Integrated design with 4.3 inch LCD screen, no need to connect with computer\n3. 8LED lights for illumination in weak light conditions, and the brightness is adjustable\n4. Built-in battery: 18650 2600mA (Support disassembly and replacement)\n5. 5million pixels Specifications: Screen size: 4.3 inch high screen Sensors: high performance optical wafers Main control chip: special master control 16Bit DSP The biggest pixel: 1080P Lensoptical size: 1/6.5\" Photo resolution: VGA; 1.3M; 2M; 3M Video resolution: VGA; 720P; 1080P Data format: JPG/AVI Focus mode: Manual operation Picture format: JPG/BMP Magnification times: 1000 Light source: 8 LED lights (adjustable brightness) Focus range: 10~40mm(to watch the distant view) PC resolution and image transfer rate: 640*480/26fps ,1280*720/26fps White balance Automatic Exposure Automatic PC operating system: Windows xp,win7,win8.1,win10,Mac OSx10.5 or higher Support language: 12 languages (English, Simplified Chinese, Traditional, Chinese, Portuguese, Japanese, French, German, Korean, Italian, Netherlands, Russia, Spain, Arabic) Lens structure: 2G+IR Aperture: F4.5 Lens perspective: 16° Interface and signal transmission method: Micro/usb2.0 Operating temperature: -20°C ~ +60°C Working humidity: 30%~85%Rh Operating current: 330mA Power consumption: 1.65W Color: Black Item Size: 16*12*6.5cm Item Weight: 224g Package Size: 656g Package Weight: 21*17*8.5cm Package Included: 1 x Microscope 1 x Base Plate 1 x Metal Pole 1 x Adjustable Holder 1 x USB Cable 1 x User Manual.","domain":"optical_engineering"}
{"url":"https://quadplus.com/laser-area-scanners","date":"2018-01-19T15:22:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-05/segments/1516084888041.33/warc/CC-MAIN-20180119144931-20180119164931-00616.warc.gz","language_score":0.9669556617736816,"token_count":144,"dump":"CC-MAIN-2018-05","global_id":"webtext-fineweb__CC-MAIN-2018-05__0__8812692","lang":"en","text":"Laser Area Scanners\nLaser area scanners consist of a conical mirror and a rapidly rotating laser, which monitor a large area to detect movement or a presence within that area. Laser area scanners can perform many of the same functions as a light curtain, but the area that they monitor is much more flexible. Laser area scanners can be programmed to shape the area that they monitor to a very precise degree, allowing for monitoring of an area even if there is fixed hardware that would normally trigger their presence sensing. However despite the convenience of this programmability, the human potential for error in their programming means that laser area scanners are not considered as reliable as light curtains, and therefore are not suitable for SIL 3 environments.","domain":"optical_engineering"}
{"url":"https://nextleveltricks.net/apples-face-id-has-a-competitor-with-bio-metric-cam-from-samsung/","date":"2018-09-18T22:10:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-39/segments/1537267155702.33/warc/CC-MAIN-20180918205149-20180918225149-00318.warc.gz","language_score":0.923696756362915,"token_count":809,"dump":"CC-MAIN-2018-39","global_id":"webtext-fineweb__CC-MAIN-2018-39__0__107757906","lang":"en","text":"Samsung was first reputed in June to chip away at a 3D facial acknowledgment innovation for its cutting-edge Galaxy leader telephone. It presently turns out that the talk has its formal premise as a patent application affirmed by the U.S. Patent and Trademark Office (USPTO) in late Q2 2018.\nObviously, Apple reports that the USPTO has allowed Samsung’s patent for a biometric camera that can be incorporated into a cell phone to check a client’s iris through a handset’s forward-looking camera. Also, the innovation may alternatively bolster vicinity detecting, night-vision camera, 3D time-of-flight sensor, eye position and look the following camera, and organized light for 3D detecting.\nSamsung Patents Bio-Metric Camera Going to Compete with Apple’s Face ID\nIt was reputed that Samsung too was chipping away at a comparative component prone to make a big appearance in its cutting-edge Galaxy lead telephone in 2019. Presently, another report from Patently Apple, recommends that Samsung has been granted a patent for its 2014 documenting of a biometric camera by the U.S. Patent and Trademark Office (USPTO) in late Q2 2018.\nAs indicated by Patently Apple, the biometric camera incorporated into a cell phone will highlight iris acknowledgment that would be utilized to check a client’s iris through a handset’s forward looking camera. The patent report uncovers that the biometric camera framework incorporates a NIR (close infrared) light source on the cell phone while catching a picture to address encompassing light difficulties.\nIt likewise incorporates an expanded profundity of field (EDOF) focal point, a bandpass sift to channel through encompassing light, and an imaging sensor to change over a protest’s optical picture into an electronic flag for handling. Further, it likewise incorporates a processor intended to get video pictures of a client’s iris from the sensor that endeavors to coordinate it with beforehand enlisted pictures put away in an iris database, wherein if a match is discovered, the client is verified.\nIt also contains a drawn out profundity of teach (EDOF) focal point, a bandpass sift to channel through encompassing delicate, and an imaging sensor to change over a protest’s optical picture into a computerized sign for preparing. Further, it moreover includes a processor intended to acquire video photos of a customer’s iris from the sensor that makes an endeavor to coordinate it with in advance enlisted pictures spared in an iris database, whereby if a match is found, the purchaser is confirmed.\nAs per Patently Apple, the biometric camera incorporated in ideal with a cell machine will trademark iris acknowledgment that may be utilized to filter a customer’s iris by methods for a handset’s forward looking camera. The patent doc uncovers that the biometric camera framework includes a NIR (near infrared) delicate supply on the phone machine while catching a photo to deal with surrounding delicate difficulties.\nMoreover, the biometric camera may alternatively do capacities together with closeness detecting, night-vision camera, 3D time-of-flight sensor, eye position and look the following camera, and organized light for 3D detecting.” Besides, cell handsets, the biometric know-in what capacity may likewise be utilized for TVs, journals or personal computer frameworks, in understanding to the patent.\nSince the patent has quite recently been in all actuality, we may not see Samsung incorporating this tech in its up and coming Galaxy Note 9 cell phone however there is a possibility of it coming in one year from now’s leader cell phones. The organization in the patent foundation has said that numerous cameras will work in conjunction to catch the pictures of the client’s iris. It is yet to be known how precisely the firm intends to execute it.","domain":"optical_engineering"}
{"url":"http://ropersci.com/4-library","date":"2023-09-27T14:42:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233510300.41/warc/CC-MAIN-20230927135227-20230927165227-00800.warc.gz","language_score":0.8062168955802917,"token_count":153,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__326925062","lang":"en","text":"Application Briefs provide short overviews of several high-performance CCD imaging applications.\nApplication Notes provide informative discussions about how Roper Scientific instrumentation is utilized to address the challenges of CCD imaging and spectroscopy applications.\nThis encyclopedia provides short overviews of a number of concepts and technologies related to high-performance CCD imaging.\nThis glossary defines some of the important terms and abbreviations used by Roper Scientific.\nEvery day, people across the world rely on Roper Scientific instrumentation to help them broaden the horizons of scientific knowledge...\nTechnical Notes provide informative discussions about various high-performance CCD imaging technologies.","domain":"optical_engineering"}
{"url":"http://hypnosisanswers.info/viewtopic.php?t=18627","date":"2019-04-23T22:53:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-18/segments/1555578613888.70/warc/CC-MAIN-20190423214818-20190424000818-00534.warc.gz","language_score":0.9137682914733887,"token_count":695,"dump":"CC-MAIN-2019-18","global_id":"webtext-fineweb__CC-MAIN-2019-18__0__66472608","lang":"en","text":"It' s the smallest and lightest non- reflex 500mm lens ever made by uses a Fresnel element to reduce the amount of glass while retaining the same optical properties as a conventional lens. For 17 years with the most detail , byThom has provided the best books on Nikon cameras clarity you' ll find. How to set manual focus on nikon d3200.\nThere is a Nikon digital SLR camera for every level of photographer from beginner to ultr offers 865 guangzhou nikon products. Top smartphone cameras. This is an ultralight 500mm ultratele. Invasive fisheyes are weird old lenses which poke into the camera, like the 7.About 15% of these are other camera accessories 13% are camera lens 5% are camera/ video bags. The F- mount was first introduced on the Nikon F camera in 1959 features a three- lug bayonet mount with a 44 mm throat a flange to focal plane distance of 46.\nThe Nikon D7200 comes with a special advanced Multi- CAM 3500 II autofocus sensor module for better focus detection even in very dim lighting conditions of up to 3 exposure stops lower and up to ISO 100. 8 AT- X 116 Pro DX II; The AT- X 116 PRO DX- II 11- 16mm f/ 2.\n8 Lens for Nikon F by Tokina is an ultra- wide angle autofocus zoom lens with a fast constant f/ 2. Override and add them.\n8E FL ED VR has four focus function buttons right on the lens barrel perfect for engaging autofocus AF Lock*. Tokina AT- X 11- 16mm F/ 2. Rated 5 out of 5 by Anonymous from An old excellant friend I' ve had this lens for about 30 years now currently when I want to use my D600 as a point shoot this old standby fills the bill to perfection. 2- megapixel digital single- lens reflex camera ( DSLR) model announced by Nikon on September 15,.\nNikon DSLR' s dedicated flash units has very sophisticated control with a number of modes settings. 3- 16 Manual Zoom Super Telephoto Lens + T- Mount for Nikon D7500 D500 D600 D610 D700 D750 D800 D810 D850 D3100 etc. Another good example of using spot metering is when photographing the cause the moon would take up a small portion of the frame the sky is completely dark around it, one is much further in front of the other, if each boy is the same distance away from the camera ( like sitting next to each other) you can be perfectly ok with a wider aperture, it is best to use Spot metering – that way, nothing really ALL DEPENDS on the focus plane, IF they are spaced out , in other words, we are only looking at the light level coming from the moon that’ s where you’ ll have issues with one being in focus. 8 PRO- II DX Lens Introduction; Tokina AF 11- 16 mm f/ 2.\nThe Nikon F- mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single- lens reflex cameras.\nView and Download NIKON D3200 reference manual online. D3200 Digital Camera pdf manual download.Nikon D3100 User Manual Nikon D3100 September More Nikon Reviews Nikon Lens Reviews.","domain":"optical_engineering"}
{"url":"http://www.astralite.co.uk/fibre-optic/","date":"2024-04-23T16:28:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296818732.46/warc/CC-MAIN-20240423162023-20240423192023-00647.warc.gz","language_score":0.9064361453056335,"token_count":284,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__26820126","lang":"en","text":"Fibre Optic Tv Solutions ( FIRS ).\nFibre Optic technology is now widely used for communal and commercial IRS Systems. The huge advantage of using a Fibre Optic IRS System over the original copper coax is that it can transport a higher amount of data over much longer distances with no signal loss. This means less amplification equipment which in turn streamlines the system, set-up and efficiency.\nAstralite offer a number of fibre optic services as well as maintenance and repair provisions for:\n- Single mode and Multimode cabling\n- Discreet and efficient cable containment\n- Floor or wall mounted fibre patching racks, panels and leads\n- Network cabinet upgrades\n- Indoor and outdoor fibre optic installations\n- Splice and termination\n- Cable and termination failure repairs\n- Duct infrastructure repair\nFibre Optic Internet Solutions.\nOur solid understanding of fibre optic and network cabling makes our installation service a preferred choice for our customers. Our clients stem from Homes to large scale offices. Providing your network with bandwidth and speeds beyond your dreams, a fibre optic network can transform and business with a significant increase in speed.\nYou can count on our installation and design solutions team to take care of all your cabling requirements. All of our solutions in this area are bespoke with your budget and requirements needs in mind.","domain":"optical_engineering"}
{"url":"http://finnfwlx505.blogminds.com/two-components-individuals-do-not-really-know-about-lasik-eye-medical-procedures-4959615","date":"2019-01-24T09:09:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547584519757.94/warc/CC-MAIN-20190124080411-20190124102411-00158.warc.gz","language_score":0.9540231823921204,"token_count":878,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__112881076","lang":"en","text":"Two Components Individuals Do Not Really Know About LASIK Eye Medical ProceduresThe eye can be analyzed with relative ease regarding both its function and its structure. A functional examination includes the ability to move in the orbit and the reaction of the pupil to light and accommodation.\nThe function of the eye may be tested in a number of ways. The patient may be asked to identify illuminated letter or things of varying sizes on exactly what is called the Snellen chart.\nAlternatively, the assessment of the structural part of the eye might be made in numerous methods. Stress within the eyeball is measured by a \"tonometer.\" In specific illness, especially in glaucoma, the tension in the eyeball is increased markedly.\nNevertheless, it should be well kept in mind that a client with an eye problem might have other issues as well. Often other physical conditions are primary and impact the eye as a repercussion. The look of the eye can inform the patient and the doctor to troubles in some disturbances of other parts of the body even before other signs present themselves.\nOne's dependence on sight is highlighted when one deals with a short-term or possible long-term loss of this vital sense. Hence, when restorative steps are sought, particular types of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some people are troubled with that they have some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgical operations were developed to encourage reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgical treatment.\nBasically, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its tangible counterpart, LASIK eye surgical treatment is another form of vision correction. The only difference is that with this kind of surgery, one's vision is fixed permanently.\nWith LASIK eye surgical treatment, the refractive mistakes in the cornea are permanently transformed. This can be done utilizing an \"excimer laser.\"\nThe main purpose of this surgical treatment is to produce a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is lastly reformed, allowing much better the eye to direct more light into the retina.\nAppeal vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the primary factor why this type of eye surgical treatment has become well accepted is since the majority of its cases had achieved success.\nHowever, in spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nSince LASIK eye surgical treatment includes the operation of the retina, which is one of the most delicate portions of the eye, the majority of people state that the operation can be extremely dangerous.\nSimply puts, a simple error might almost trigger an person's lifetime loss of sight. It read more is crucial to think about lots of elements prior to choosing whether LASIK eye surgical treatment is the best restorative procedure one has to go through.\n2. It is not a best treatment\nLASIK eye surgical treatment might remedy your vision however it does not necessarily mean that it can provide you a perfect vision. Even if analytical reports reveal that 70% of the patients might have 20/20 vision, this does not always suggest they have ideal vision.\nOffered all these things, it can be deduced that, in spite of the popularity of the operation, LASIK might not always be the ideal eye surgical treatment the way many people view it\nAlternatively, the evaluation of the structural part of the eye might be made in numerous methods. It should be well remembered that a patient with an eye problem might have other issues. Typically other physical conditions are primary and affect the eye as a consequence. The look of the eye can alert the client and the physician to difficulties in some disruptions of other parts of the body even prior to other symptoms provide themselves.\nLike its tangible counterpart, LASIK eye surgical treatment is another type of vision correction.","domain":"optical_engineering"}
{"url":"http://www.afsbirsttr.com/News/NewsDetails.aspx?pk=a5a86744-65c1-4d6a-bfea-fd5839b178fe","date":"2016-07-26T10:11:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2016-30/segments/1469257824757.8/warc/CC-MAIN-20160723071024-00280-ip-10-185-27-174.ec2.internal.warc.gz","language_score":0.857917845249176,"token_count":427,"dump":"CC-MAIN-2016-30","global_id":"webtext-fineweb__CC-MAIN-2016-30__0__109777185","lang":"en","text":"Infoscitex Corporation and UtopiaCompression Corporation have SBIR project successes\nTwo SBIR success stories have been posted to the Publications section of this web site (see the Innovation success story folder).\nUtilization of photovoltaics in the space environment requires the provision of coverglass materials to protect cells from corpuscular and ultraviolet (UV) radiation. Infoscitex Corporation, located in Waltham, Massachusetts, tuned the optical transmittance of candidate glass materials to take advantage of the near-UV region at the beginning of life (BOL) and end of life (EOL) cycles. Infoscitex’s optimized glass formulation provides improved UV/Visible light transmissivity and resistance to radiation-induced darkening compared to currently used coverglass. The Infoscitex coverglass was flown on the National Aeronautics and Space Administration's Materials International Space Station Experiment-7 (MISSE-7) as part of the active solar cell experiment. Application of the Infoscitex coverglass technology on satellites in high radiation orbits could enable longer mission lifetime, more available power, and lower weight requirements for the power system. The AFRL Space Vehicles Directorate manages this SBIR project.\nUnder another SBIR project, the Air Force requirement was to develop a practical and effective approach to maneuverless range estimation using monocular passive electro-optical sensors for use in Unmanned Aircraft Systems (UAS) Sense-and-Avoid systems. UtopiaCompression Corporation, located in Los Angeles, California, developed an analytically proven practical approach for maneuverless monocular passive range estimation, which represents a practical solution to this decades-old problem. Using this novel approach, accurate range estimates (~10 percent error) can be obtained for aircraft up to three nautical miles away without requiring any UAS maneuver. The maneuverless monocular passive ranging technology will have a transformational impact on integrating UAS in the National Airspace by removing a major technological barrier. This SBIR project is managed by the AFRL Sensors Directorate.","domain":"optical_engineering"}
{"url":"https://kontoreyewear.com/collections/zeplin-lenses","date":"2024-04-17T17:01:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817158.8/warc/CC-MAIN-20240417142102-20240417172102-00530.warc.gz","language_score":0.9004468321800232,"token_count":146,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__166205587","lang":"en","text":"Moulded from TR90, a thermoplastic polyamide. TR90 sunglass frames are lightweight, extremely flexible yet super strong with 100% memory allowing the frames to bounce back to their original shape\nOur Revo lenses harness the latest technology to create a lens that protects, enhances, and improves the way we see the world. We use lightweight polycarbonate material for our base, and then apply a series of unique coatings to the front and back of the lens to maximize protection and performance.\nOur strong inserts made from same TR90 material our sunglasses are made from ensuring durability from breakage which is a big concern with insert based sports sunglasses.","domain":"optical_engineering"}
{"url":"https://dune.ece.wisc.edu/category/research-and-technology/quantum-information-science-and-technology/","date":"2021-04-23T14:15:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039594808.94/warc/CC-MAIN-20210423131042-20210423161042-00333.warc.gz","language_score":0.8808433413505554,"token_count":112,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__192123280","lang":"en","text":"NSF just announced the establishment of the first three Quantum Leap Challenge Institute (QLCI) awards to accelerate cross-disciplinary research and innovation and workforce and technology development in Quantum Information Science and Engineering. The three QLCI …\nBy exploiting the wave-and-particle-like nature of light, a new technique offers the best of both worlds\n6-qubit ion trap system hits a critical benchmark\nResearchers from the Institute for Quantum Computing (IQC) at the University of Waterloo report the first occurrence of directly splitting one photon into three.","domain":"optical_engineering"}
{"url":"https://events.ok.ubc.ca/event/thesis-defence-intelligent-surveillance-with-multimodal-object-detection-in-complex-environments/","date":"2024-04-18T01:22:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817184.35/warc/CC-MAIN-20240417235906-20240418025906-00865.warc.gz","language_score":0.9073088765144348,"token_count":560,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__96593478","lang":"en","text":"- This event has passed.\nThesis Defence: Intelligent Surveillance with Multimodal Object Detection in Complex Environments\nMarch 22 at 12:00 pm - 4:00 pm\nYue Cao, supervised by Dr. Zheng Liu, will defend their thesis titled “Intelligent Surveillance with Multimodal Object Detection in Complex Environments” in partial fulfillment of the requirements for the degree of Master of Applied Science in Electrical Engineering.\nAn abstract for Yue Cao’s thesis is included below.\nDefences are open to all members of the campus community as well as the general public. Please email firstname.lastname@example.org to receive the Zoom link for this defence.\nSurveillance systems play a crucial role in ensuring public safety. With the advent of deep learning algorithms, these systems have evolved from passive monitoring tools that heavily relied on human operators, to advanced solutions capable of autonomously analyzing scenes with minimal human input. However, accurately detecting objects of interest in real-world scenarios presents a significant challenge due to the dynamic illumination and the varying sizes of objects. This research aims to enhance the accuracy and robustness of intelligent surveillance systems for object detection in complex environments by integrating two complementary sensor data: visible light (RGB) and infrared (IR) images.\nFirst, a multimodal detection framework is proposed building upon the Faster R-CNN architecture, which is capable of integrating features from both RGB and IR images for enhanced object detection. Following this, Poolfuser, a transformer-based fusion module, is introduced and incorporated into the detection framework to fuse features from various modalities from spatial perspective. This approach emphasizes the critical features for target detection. Experimental results show that the multimodal framework equipped with Poolfuser significantly outperforms unimodal detectors and other competing multimodal approaches in terms of detection accuracy in complex environments.\nSecondly, to enhance both the efficiency and accuracy of the detection model without increasing computational complexity, a CNN-based lightweight fusion module named CSSA is introduced. This module is designed to fuse the input features from both the spatial and channel perspectives. Furthermore, CNN-based architecture enhances the generalizability of CSSA across datasets of varying sizes. The experimental results demonstrate that the CSSA module can further improve the detection accuracy without affecting the real-time performance of the detection framework.\nFinally, considering the impact of other components, such as the backbone network and the loss function on detection performance. This study further optimizes the CSSA-based multimodal detection model and introduces CSSA-Det. CSSA-Det shows improved object detection performance over CSSA and other state-of-the-art multimodal frameworks, particularly in the accuracy of bounding box localization.","domain":"optical_engineering"}
{"url":"https://medquestmedical.com/manufacturers/ndimedical/","date":"2021-01-26T15:24:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610704800238.80/warc/CC-MAIN-20210126135838-20210126165838-00179.warc.gz","language_score":0.8911340236663818,"token_count":121,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__150194811","lang":"en","text":"NDI is a global leading innovator and manufacturer of advanced 3D measurement technology systems,\nWith over 45,000 installations worldwide. For over 35 years, the company’s optical measurement and electromagnetic tracking solutions have been trusted by the world’s foremost organizations and institutes in medicine, industry, and academia. From image-guided surgery to aeronautics; from quality assurance to biomechanics research, NDI solutions are used whenever best-in-class measurement accuracy and reliability are required.\nContact MedQuest Medical\nAnd learn how we can help you improve your patient outcomes.","domain":"optical_engineering"}
{"url":"https://interiordesignermagazine.co.uk/2017/04/26/brightgreen-joins-the-ridi-family/","date":"2022-07-02T05:00:48Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-27/segments/1656103984681.57/warc/CC-MAIN-20220702040603-20220702070603-00419.warc.gz","language_score":0.926022469997406,"token_count":400,"dump":"CC-MAIN-2022-27","global_id":"webtext-fineweb__CC-MAIN-2022-27__0__190220752","lang":"en","text":"The RIDI Group has announced that it has signed an exclusive deal with Brightgreen to distribute the Australian LED specialist’s lighting solutions in the UK.\nBrightgreen utilises the latest LED technology combined with forward-thinking product design to create beautiful, high quality lighting solutions for high end residential and hospitality applications. Brightgreen is a young, energetic company that is B-Corp Certified and has a refreshing approach to working.\n“We are delighted with the opportunity to work alongside such an innovative and exciting company as Brightgreen,” says Mike Attard, UK MD of the RIDI Group. “Brightgreen’s focus on quality of light and an exceptionally high standard of engineering aligns perfectly with the RIDI Group’s vision. We believe that the addition of Brightgreen’s range of fresh, modern light fittings will really complement the RIDI Group’s existing product portfolio.”\nBrightgreen offers a comprehensive range of LED lighting, from spotlights and downlights to track lighting systems, suitable for residential, hospitality, retail and gallery applications. Brightgreen’s focus is on providing high quality fittings that are efficient, easy to install and deliver exceptional light quality. Integrated within Brightgreen’s premium lighting solutions is its Tru-Colour LED technology, which provides phenomenal colour rendering and an evenly balanced colour spectrum to enhance the visual appearance of colour and interiors. Brightgreen’s Digital Driver ensures smooth, flicker-free dimming capabilities and comprehensive surge protection that can extend the lifespan of the LED for up to 10 years. The Digital Driver also ensures integration with leading smart home control providers, including Control4 and Crestron.\nThe RIDI Group will be the exclusive UK distributor for Brightgreen, following on from the announcement of an exclusive distribution partnership with German industrial LED specialist Norka, to further expand its product portfolio and strengthen its multi-brand offering to the market.","domain":"optical_engineering"}
{"url":"https://audi.wholepics.com/audi/volvo-concept-coupe-cool-hunting-a-grouped-images-picture-pin-them-all/","date":"2020-02-26T19:08:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146485.15/warc/CC-MAIN-20200226181001-20200226211001-00134.warc.gz","language_score":0.9537983536720276,"token_count":636,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__61495416","lang":"en","text":"Volvo Concept Coupé – Cool Hunting… – a grouped images picture – Pin Them All\nThe code light is a lamp on the vehicle that lights up on the vehicle's nameplate. This helps to identify the specific license number that DMV has on file for your vehicle. The factory light source for most vehicles is a traditional light bulb with halogen lamp that provides a glow glow. Because of how the rating plate is designed or how much light is produced from the light, it may not be appropriate to meet the expectations of some car enthusiasts who want more output. There are two ways to drastically improve the appearance and output of your vehicle's sign lights. This article will explain the benefits and options available to make the LED light look.\nLED stands for LED which is a semiconductor that produces light when electricity is introduced into its circuit. LED lamps provide much more lumens output per power consumed, which makes them much more efficient when converting electricity to visible light output. In essence, the LEDs are much brighter than ordinary halogen bulbs that are equally large. They are also more reliable than ordinary light bulbs due to the fact that there are no moving parts or components that decompose over time. LED lamps often last up to 50,000 hours in ideal working conditions. In addition to having all these advantages, LED lamps are also available in different colors and shades. The legal color of the license plate light application is white and yellow, but if you feel adventurous, you can choose the other exotic colors that LED lights can offer, eg. blue, red or the like.\nThe LED replacement lamp is the most common way to get the benefits of LED lights. LED replacement lamps are essentially what the name suggests; a similar lamp that the vehicle uses, but an LED version instead. Most LED lights have LEDs placed around the lamp to spread the light just as the factory lamp would. Lamps with LED lights are limited to the type of LED used and how much they are on the lamp itself. While most LED plate lamps provide enough light for most, it may not be enough for others. This leads us to the next type of LED light that is available for the nameplate that is the replacement unit.\nThe other way to get the benefits of LED is to buy a direct-fit LED lamp. For many vehicles, the factory lamp is located inside a larger unit that uses a plug and socket to hold it in place. This entire unit can be replaced with an LED equivalent that uses the factory network to power it up. These types of light can offer much more light output than the usual LED lamp replacement because of the particular design of the housing and the number of LEDs used.\nIn conclusion, if you need a brighter signboard, the best way to get this done is to use either an LED lamp replacement or an LED mount. both are wonderful and do a good job, but the latter is brighter. The advantages that LED lamps offer over light bulbs with halogen lamps are very obvious. There is no doubt that LED lights are the primary choice for factory lights on many vehicles such as Audi, Mercedes-Benz, BMW, Lexus, Cadillac and more.","domain":"optical_engineering"}
{"url":"http://www1.cheguanjia168.com/top/33459.html","date":"2022-09-27T15:35:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030335034.61/warc/CC-MAIN-20220927131111-20220927161111-00718.warc.gz","language_score":0.9150281548500061,"token_count":520,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__177189490","lang":"en","text":"The glass of shower room is white crystal glass\nwhen all kinds of exquisite shower room products are gradually loved by consumers, the self explosion problem of tempered glass in shower room has been puzzling consumers. So, how to make the shower glass safer? This is a focus of social concern. Some experts said that the self explosion of tempered glass cannot be avoided, but the self explosion rate of tempered glass can be reduced to 1 in 10000 by using new products such as white crystal glass, which fundamentally solves the problem of self explosion of tempered glass. At present, the self explosion rate of ordinary tempered glass is ‰, while that of white crystal glass is only 0. Therefore, white crystalline glass is the lowest and safest glass in the world at present\nXu Wuyi, an expert of wangwenyong Industrial Glass Association of China building glass and DSM and the technical director of engineering glass of CSG group, pointed out that although the self explosion of tempered glass cannot be avoided, the self explosion rate of white crystal glass produced by special process can be greatly reduced. \"After the ordinary white glass is hardened, a microcomputer sends a beam movement command according to the value set before the experiment. The self explosion rate of the universal experimental machine is 3 ‰ -5 ‰, while the white crystal glass is a highly transparent low iron glass. Due to less impurities, the self explosion rate can be reduced to less than 0.1 ‰.\"\nwhite crystal glass adopts the world-class magnetic beneficiation process to remove impurities such as iron and nickel from raw materials. The composition is more uniform, the glass structure is more stable, and the self explosion rate is 10 times lower than that of ordinary tempered glass, thus making the shower room safer. At the same time, through aviation grade float deep processing, through the test of low temperature and high temperature resistance, white crystal glass has the advantages of acid resistance, corrosion resistance, mold resistance and durability compared with ordinary tempered glass without reducing the light transmittance\nin view of the high-quality and multifunctional characteristics of white crystal glass, many well-known buildings use white crystal glass, such as Beijing bird's nest, water cube, Chinese History Museum, National Grand Theater and so on. Leiberton shower room is the only enterprise in the industry that adopts white crystal glass for its full range of products\nwhite crystal glass is not only the best choice for large buildings, but also the best choice for shower rooms\nit brings more opportunities to enterprises like Ashland all over the world","domain":"optical_engineering"}
{"url":"https://www.globalcyclingnetwork.com/tech/news/ai-powered-smart-glasses-from-lawk-smash-funding-target-on-kickstarter","date":"2024-03-03T21:32:36Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476399.55/warc/CC-MAIN-20240303210414-20240304000414-00470.warc.gz","language_score":0.9452570080757141,"token_count":722,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__85062928","lang":"en","text":"AI powered smart glasses from LAWK smash funding target on Kickstarter\nSmart glasses with augmented reality display can overlay ride data and provide on-command information from ChatGPT assistant\nJunior Tech Writer\nLAWK has smashed its Kickstarter campaign for its AI powered augmented reality glasses\nThe cycling world is really embracing advancements in technology, with recent developments including a ChatGPT AI-based coaching platform from Whoop and aerodynamic optimisation sensors that can potentially rival wind tunnel testing. The future looks to be even closer now, with LAWK looking to launch a pair of very futuristic 'smart' glasses.\nThe LAWK ONE AR glasses feature a heads-up style display that can be used to present a multitude of metrics, from speed and power to navigation. The idea behind this is to overlay the data you want, where you would naturally be looking, preventing the need to look down at a head unit.\nLAWK has designed the glasses to meet IPX4 certification requirements, making them suitable for use in rain showers and able to deal with sweat from workouts.\nLAWK ONE offers riders a head up display of training and navigation metrics\nThe LAWK ONE also features the ability to capture pictures and videos with the built-in 8MP camera that can either be controlled via a dedicated button on the glasses or by voice command. Along with the data display and camera, the glasses feature integrated speakers that can be used for music whilst training or for notifications when paired with a smartphone.\n- Read more: Whoop brings in ChatGPT for AI coaching\nA key feature the brand has invested in, with input from medical experts, is what it's calling ‘Binocular Waveguide Technology'. The issue with some AR systems is that the device only projects the overlay onto one lens of the glasses, resulting in a focal discrepancy between eyes that can lead to dizziness and eye fatigue.\nLAWK's technology projects virtual information separately onto each lens, which is designed to enhance depth perception and provide a more realistic viewing experience.\nBinocular waveguide technology has been used to prevent headaches and dizziness associated with some AR tech\nFollowing the recent theme of the cycling world starting to embed the power of AI into products, the LAWK ONE glasses will offer a virtual assistant, powered by ChatGPT, that will allow you to ask questions on the move and have the answers read to you.\nThe power of AI in training is only just starting to be used but it is an exciting area to keep an eye on. On the topic of smart glasses, it was interesting to note that Apple CEO Tim Cook recently visited the Jumbo-Visma team and hinted that the tech giant's Vision Pro mixed-reality headset could be developed for cyclists in the future.\nOriginally LAWK had listed its glasses on Kickstarter with a target of £8,209. However, with an end date to reach funding of 25 November, the campaign has already generated £17,860 of pledges.\nLAWK is anticipating that shipping of the product will begin in December 2023 with up to a 40% discount for pledges on Kickstarter.\nAre AR glasses something that you can't wait to get your hands on?\nWould you wear the LAWK ONE instead of using a typical head unit? Is wearable tech something that you will be welcoming with open arms, or should it remain in the world of science fiction? Let us know in the comments below.\nJunior Tech Writer\nAlex writes for the GCN editorial tech with a passion for all things bike tech.","domain":"optical_engineering"}
{"url":"https://www.tierklinik-stuttgart.de/th-en/fachdisziplinen/augenheilkunde/eye-operation.php","date":"2023-12-01T16:06:45Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100290.24/warc/CC-MAIN-20231201151933-20231201181933-00192.warc.gz","language_score":0.934852123260498,"token_count":228,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__17781108","lang":"en","text":"The Veterinary Clinic Stuttgart possesses a completely equipped eye operating room with a high-class Zeiss operating microscope, an eye laser, a phaco machine, a cryo device, a modern anesthesia device and a system for the monitoring of the delivery of anesthetics, as well as all the microinstruments required for interventions in the interior of the eye.\nSpecialists define grey star or cataract as opacity of the crystalline lens, which leads to the nebular deterioration of eyesight and increased sensitivity to glare. The reasons are hereditary conditional lens opacities, lens opacities as a consequences of diabetes (increased blood sugar level), age-related opacities or the result of injuries and inflammations of the eye. The only treatment option is operation.\nDuring the operation, the opaque lens is removed through a cut several millimeters long made using ultrasound and an artificial lens is inserted into the eye.\nThe modern and gentle operation technique we use almost always leads to a very good visual result.\nThe burden on the patient is low and the surgery can be also performed at an old age.","domain":"optical_engineering"}
{"url":"https://www.posecu.com/sale-12088661-day-night-confocal-6mm-hd-lens-manufacturer-m12-interface-high-definition-network-lens-security-came.html","date":"2023-03-22T23:48:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296944452.97/warc/CC-MAIN-20230322211955-20230323001955-00618.warc.gz","language_score":0.6621019244194031,"token_count":583,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__87710045","lang":"en","text":"|Place of Origin:||Shenzhen, China|\n|Certification:||CE, FCC, RoHS|\n|Minimum Order Quantity:||100pcs|\n|Packaging Details:||Standard packing|\n|Delivery Time:||3-7days after the order is confirmed|\n|Payment Terms:||T/T, PAYPAL, WEST UNION|\n|Reoslution:||2MP, 4MP, 6MP||MOD:||0.2m|\nDay-night confocal 6mm HD lens manufacturer M12 interface High Definition Network Lens Security Camera Lens:\n|Sensor Size||1/2.7''||Resolution||2MP, 4MP, 6MP|\n|MOD||0.2m||Operating Temperature||-20°C -- +60°C|\n|Angle of View||53°||IR CUT||Optional|\n|Remark||Network Camera Lens|\n1. Glass-plastic mixed lenses: the lens interior mostly uses glass lenses, plastic aspheric lenses mixed form, effective correction of aberration;\n2. Low-dispersion glass materials: low-dispersion materials are used to effectively reduce dispersion. The effect of correcting the axial chromatic aberration at telephoto end and the vertical chromatic aberration at wide angle end is particularly significant.\n3. Temperature drift control: Using optical materials with low thermal expansion coefficient, the lens can obtain clear pictures without re-focusing under different temperature environments.\n4. Flatness of image surface: Excellent optical design technology is used to achieve high pixel and high contrast uniformly from the center to the periphery of the image.\n5. Day-night confocal: Both visible and near-infrared light have almost no change in the focal plane, so that the image can get a clear effect in day and night.","domain":"optical_engineering"}
{"url":"https://instrumentcs.com/achieving-precision-with-ics-optical-and-video-measuring-system-calibration/","date":"2024-04-20T12:48:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00060.warc.gz","language_score":0.8806392550468445,"token_count":663,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__164366468","lang":"en","text":"In the realm of precision measurement, the calibration of optical and video instruments is a pivotal aspect of maintaining high standards of accuracy and reliability. Instrument Calibration Solutions (ICS) stands at the forefront of providing state-of-the-art calibration services for optical comparators, microscopes, and video measuring systems. This blog dives into why ICS is your ideal partner for ensuring that your optical and video equipment operates at its peak performance.\nComprehensive Calibration and Maintenance Process\nOur process begins with meticulous attention to detail, ensuring that every aspect of your equipment is addressed:\n- Thorough Cleaning: Starting with a gentle yet effective cleaning using a mild detergent to degrease the machine’s exterior. This step includes cleaning and lubricating accessible lead-screws and bearing ways, ensuring smooth operation.\n- Optics Inspection and Cleaning: We inspect and clean all optics, including lenses, mirrors, stage glass, and monitor/chart glass with coating-safe lens cleaner and lint-free tissues, ensuring optimal clarity and performance.\n- Mechanical Adjustments: Removal of burrs and high spots from the table surface and ways, enhancing the machine’s precision and smoothness.\n- Light Source Alignment: Aligning and collimating the light source parallel to the optics, crucial for accurate measurements.\nWorld-Class Calibration Services\nOur calibration service is comprehensive, including before and after adjustment data to demonstrate the improvements made:\n- Comparator Calibration: Includes focus squareness, table squareness, perpendicularity of axes, edge detection accuracy, magnification and distortion accuracy, chart angular rotation, X & Y axes lead accuracy, and more.\n- Video Measuring Machine Calibration: Focuses on table flatness, focus squareness, par-focalization and par-centrality of zoom lens, edge detection accuracy, stage squareness, Z axis linear calibration, and linear or nonlinear grid data.\n- Measuring Microscope Calibration: Addresses table flatness, focus squareness, stage squareness, reticle scale magnification accuracy, crosshair rotation, and X & Y axis lead accuracy.\nWhy Choose ICS for Your Calibration Needs?\n- Onsite and Laboratory Adjustments: Our professionals perform adjustments both onsite and in our fully equipped lab, ensuring convenience and flexibility.\n- Expedited Services Available: For those in a rush, we offer expedited services to meet your urgent needs without compromising quality.\n- Repair Services: Beyond adjustments, we have the capability to repair even some of the oldest machines, extending the life of your valuable equipment.\n- Transparent Data: All calibrations include before and after data, accessible through your ICS Live login, ensuring transparency and accountability.\nPartnering with ICS: Your Solution for Optical/Video Instrument Precision\nChoosing ICS means selecting a partner committed to precision, reliability, and outstanding customer service. Our comprehensive calibration process, combined with our expertise in handling a wide range of optical and video measuring instruments, ensures that your equipment delivers the accuracy and performance you need. Whether you require routine calibration or urgent adjustments, ICS is here to support your precision measurement needs, keeping your operations accurate and efficient.","domain":"optical_engineering"}
{"url":"http://luna4778hbublog.blogminds.com/two-important-items-you-do-definitely-not-appreciate-regarding-to-lasik-eye-surgery-5384762","date":"2019-01-16T10:58:02Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-04/segments/1547583657151.48/warc/CC-MAIN-20190116093643-20190116115643-00311.warc.gz","language_score":0.9510642886161804,"token_count":878,"dump":"CC-MAIN-2019-04","global_id":"webtext-fineweb__CC-MAIN-2019-04__0__11674186","lang":"en","text":"Two Important items You Do Definitely Not Appreciate Regarding To LASIK Eye SurgeryThe eye can be analyzed with relative ease regarding both its function and its structure. A functional evaluation includes the capability to relocate the orbit and the response of the pupil to light and accommodation.\nThe function of the eye may be checked in numerous methods. The patient might be asked to recognize illuminated letter or things of varying sizes on what is referred to as the Snellen chart.\nOn the other hand, the examination of the structural part of the eye may be made in several methods. Stress within the eyeball is determined by a \"tonometer.\" In certain diseases, particularly in glaucoma, the tension in the eyeball is increased considerably.\nHowever, it should be well bore in mind that a client with an eye problem may have other issues too. Often other physical conditions are main and affect the eye as a consequence. The appearance of the eye can signal the doctor and the patient to troubles in some disruptions of other parts of the body even before other signs provide themselves.\nAs a result, one's reliance on sight is stressed when one faces a temporary or possible long-term loss of this essential sense. When corrective measures are sought, particular kinds of vision correction such as contact lenses or glasses are prescribed.\nOn the other hand, some people are bothered with that they have actually some framed lenses or contact lenses in front of their eyes.\nFor this reason, advanced surgeries were established to encourage reduced utilization of contact lenses or glasses. Among which is the now popular LASIK eye surgery.\nGenerally, LASIK eye surgery is the short term for \"Laser-Assisted In Situ Keratomileusis.\" Like its concrete counterpart, LASIK eye surgery is another kind of vision correction. The only difference is that with this type of surgical treatment, one's vision is remedied permanently.\nWith LASIK eye surgery, the refractive mistakes in the cornea are completely transformed. This can be done utilizing an \"excimer laser.\"\nThe primary function of this surgery is to develop a threadlike, rounded \"flap\" in the cornea using a blade referred to as \"microkeratome.\" In a series of unfolding and laser processing, the cornea is finally reformed, permitting better the eye to direct more light into the retina.\nPopularity vs. Disadvantages\nIn the middle of the growing popularity of LASIK eye surgical treatment, there are still disadvantages that people need to know. Most likely, the main factor why this type of eye surgical treatment has ended up hop over to here being well accepted is since most of its cases had actually been effective.\nIn spite of its success, there are still some downsides. Here is the list:\n1. It is an operation used to the most sensitive part of the eye\nSince LASIK eye surgical treatment involves the operation of the retina, which is one of the most sensitive portions of the eye, the majority of people state that the operation can be very dangerous.\nTo puts it simply, a easy error might practically trigger an individual's lifetime blindness. It is essential to consider numerous aspects before deciding whether LASIK eye surgery is the right corrective procedure one has to undergo.\n2. It is not a best treatment\nLASIK eye surgical treatment might remedy your vision however it does not necessarily indicate that it can give you a twenty-twenty. Even if analytical reports show that 70% of the patients may have 20/20 vision, this does not necessarily indicate they have ideal vision also.\nProvided all these things, it can be deduced that, in spite of the popularity of the operation, LASIK may not constantly be the ideal eye surgery the way the majority of people view it\nOn the other hand, the evaluation of the structural part of the eye may be made in numerous ways. It needs to be well kept in mind that a client with an eye problem may have other problems. Typically other physical conditions are primary and affect the eye as a effect. The look of the eye can signal the doctor and the client to troubles in some disturbances of other parts of the body even before other signs provide themselves.\nLike its tangible counterpart, LASIK eye surgery is another type of vision correction.","domain":"optical_engineering"}
{"url":"https://www.ovid.com/product-details.8798.html","date":"2021-03-03T08:23:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178366477.52/warc/CC-MAIN-20210303073439-20210303103439-00638.warc.gz","language_score":0.911376953125,"token_count":261,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__38236831","lang":"en","text":"Publication Year: 2008\nEdition: 1st Ed\nAuthors/Editor: Luo, Qinming; Wang, Lihong V.; Tuchin, Valery V.\nPublisher: World Scientific Publishing Co, Inc.\nComprised of selected papers presented at the 6th International Conference on Photonics and Imaging in Biology and Medicine, held on November 4–6, 2007 at Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, P R China\nPIBM is designed to bring together scientists, engineers and clinical researchers from a variety of disciplines engaged in applying optical science, photonics and imaging technologies to problems in biology and medicine. The scope of this conference ranges from basic research to instrumentation engineering to biological and clinical studies. It is recognized as one of the largest and most comprehensive international conferences in China, and represents the highest level of worldwide research in this field. An increasing number of young researchers are presenting and exchanging their innovative ideas on this friendly and professional platform, thus making PIBM a not-to-be-missed annual meeting in Wuhan.\nThis book is ideal for researchers and graduate students in the field of biomedical photonics, biomedical engineering, optics and biophysics.","domain":"optical_engineering"}
{"url":"http://onlinenightvision.com/en/bushnell_equinox_z_digital_night_vision_monocular_6_x_50mmimage_capture260150.php","date":"2021-09-27T10:36:34Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-39/segments/1631780058415.93/warc/CC-MAIN-20210927090448-20210927120448-00376.warc.gz","language_score":0.8341104388237,"token_count":461,"dump":"CC-MAIN-2021-39","global_id":"webtext-fineweb__CC-MAIN-2021-39__0__175756607","lang":"en","text":"Bushnell Equinox Z Digital Night Vision Monocular 6 x 50mm¦Image Capture¦260150. The 6x50 Equinox Z Digital Night Vision Monocular from Bushnell uses an infrared-sensitive CMOS sensor and a micro LCD screen for its night vision capabilities, instead of a conventional intensifier tube. A built-in IR illuminator provides an effective night vision range of up to 100'.\nA side rail enables accessories, like another illuminator, to be attached directly to the monocular. The screen displays color images during the day, and black and white when the night vision is on for great clarity and contrast. Enhancing the optical 6x magnification is a digital zoom to provide up to 18x magnification. Capture video and still images in 640x480 resolution, and save them to an optional micro-SD card in the built-in card slot.\nIt supports cards up to 32GB. A switch on the bottom of the monocular lets you quickly switch from video to still images. A USB port lets you transfer the files to a computer without having to remove the card.An RCA video-out port allows the live video feed to be sent to an external monitor or recording device. The status of the monocular is displayed on the LCD screen in the field of view. The icons can be disabled for an unobstructed view. Icons show battery level, zoom factor, IR and image brightness settings, if a memory card isn't detected, elapsed and remaining recording time, and the number of pictures you can take based on the available memory.\nBushnell Equinox Z Digital Night Vision Monocular 6 x 50mmImage Capture260150. Comes in Retail Packaging so makes a Great Gift. THE LATEST IN TECHNOLOGY DELIVERED WORLDWIDE. The item \"Bushnell Equinox Z Digital Night Vision Monocular 6 x 50mmImage Capture260150\" is in sale since Friday, November 17, 2017.This item is in the category \"Cameras & Photography\\Telescopes & Binoculars\\Binoculars & Monoculars\". The seller is \"sustuu\" and is located in Harrow, North West London. This item can be shipped worldwide.","domain":"optical_engineering"}
{"url":"https://carroteyewear.com/pages/digital-eye-strain","date":"2024-04-19T00:05:32Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817249.26/warc/CC-MAIN-20240418222029-20240419012029-00824.warc.gz","language_score":0.9393832683563232,"token_count":349,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__20076666","lang":"en","text":"Digital Eye Strain? Tell me more.\nThat headache you’re coming home with? Yeah, it could be because Bill from accounting still hasn’t figured out how to stop “Replying All.” Or maybe it’s because your boss called the third meeting today that could have (should have) been an email. But ever stopped to consider it could be your computer screen? Every day, most of us spend over 10 hours sending emails, scrolling through Instagram, or admitting that yes, we’re still watching, when Netflix calls us out. All that screen time adds up to tired eyes when we don't take a break and allow our eyes to relax its accommodation.\nWhat is Blue Light?\nWe’re all familiar with UV rays- we’ve been warned for decades now to wear sunglasses outdoors. The sun emits a spectrum of light, which makes our eyes light sensitive. Indoors, we are constantly surrounded by light emitted from screens and LEDs, which happens to be a wavelength of blue. Thus, wearing blue light filtering coating on lenses help to reduce light sensitivity and glare from screens and overhead lights. We do know that it can cause changes to our sleep patterns at night, which can cause insomnia, but our blue light filtering coating can help!\nWhat makes us different? We’re doctor-designed and want to help you make the smart choice for strong healthy eyes. Each lens block 50% of all blue light and 90% of the highest range, blocks UV light, and comes with anti-glare. Our lenses enhance font, reduce light sensitivity, and appear virtually clear without compromising clarity. It’s like seeing the world in HD.","domain":"optical_engineering"}
{"url":"https://www.mem-gems.com/blogs/news/how-do-mem-gems-work","date":"2022-08-07T16:10:57Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882570651.49/warc/CC-MAIN-20220807150925-20220807180925-00098.warc.gz","language_score":0.9207606911659241,"token_count":731,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__202379884","lang":"en","text":"How do Mem-Gems work?\nConstructive interference of laser light brings your image to life\nSpace is like a three-dimensional pond surface\nIf you have ever looked at a pond, you may have noticed little waves on the surface. Light waves are electromagnetic waves, which means that instead of moving molecules of water around on a pond surface, they actually distort the electromagnetic field of space itself. And rather than being confined to a surface of a pond, light waves can travel in three-dimensions. Light waves are amazing!\nAll the photons are one wavelength\nThe smallest measurable unit of light (a single photon) is created when an electron (the little charged guy orbiting the nucleus of an atom) hops down in energy. In a laser, a light photon can trigger an adjacent electron to release a photon in a chain reaction called stimulated emission (the SE LASER). As a result of all the complicated physics going on in a laser, all the photons of light emitted by a laser are nearly the same color. Unlike most things we see in our day-to-day lives that reflect sunlight of all colors to varying degrees, a laser emits just one wavelength of light. That's why lasers have such a futuristic appearance that's unlike anything you see in normal sunlight.\nLasersLasers are spatially coherent light sources. That means that they shine in one direction, so they can be bright even if you're far away from them. Your eyes have evolved to focus light to enable you to see. However, this also means that a laser beam can actually be focused by your eye to a small spot on your retina, and permanently damage your eye. Furthermore, sudden exposure can cause temporarily surprise and blindness that can be dangerous if driving a car or operating heavy machinery. However, there are some basic physics principles that can help us stay safe:\n- The power of a laser increases its danger level because it will take less time to cause damage to the retina. Therefore, we recommend: use a low-power laser (Class II or less).\n- Do not stare at any direct reflections, so don't shine a laser at a mirror, shiny metal, or other optically reflective surface. Project images onto diffuse specular surfaces such as a white painted wall.\n- Do not intentionally stare at a laser beam. If something is uncomfortable, look away.\n- For more information about laser safety, see: https://www.lia.org/resources/laser-safety-information/laser-pointer-safety\nA Mem-Gem™ uses a specially patterned laboratory-grown sapphire to control the optical interference of light\nSince we know that light is a wave, and lasers have just a single wavelength, we can use physics to control how that light will interfere. We use software to turn your image into a special pattern called a phase-mask that controls light. By perfectly tuning the surface of your laboratory-grown sapphire Mem-Gem™ so that some areas create destructive interference and other areas create constructive interference, and repeating this process millions of times, we can build up a diffractive optical element that will project an image under laser light illumination. Each pixel in the Mem-Gem™ represents one Fourier mode of the resulting image projection, and that's why your image is hidden in sunlight. Similar to how musicians in a symphony orchestra create sound waves to celebrate music, we believe that Mem-Gems™ use light waves to celebrate the memory that you wish to treasure!","domain":"optical_engineering"}
{"url":"http://www.iblindness.org/community/viewtopic.php?f=16&t=2312&p=15667","date":"2013-06-19T02:20:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2013-20/segments/1368707439689/warc/CC-MAIN-20130516123039-00066-ip-10-60-113-184.ec2.internal.warc.gz","language_score":0.9608500003814697,"token_count":151,"dump":"CC-MAIN-2013-20","global_id":"webtext-fineweb__CC-MAIN-2013-20__0__12114849","lang":"en","text":"@seetheleaves: Glad to have helped.\n@David: Thanks for pointing that out. I did not consider the intensity of light in my explanation. Mirrors that are \"perfectly\" flat, and therefore perfectly reflective are very, very rare, and so most mirrors (and lenses too) will \"lose\" some of the light (in the case of mirrors, some light is transmitted into them; in the case of lenses, some light is reflected and never reaches the eye) and the resulting image is not as intense (or as \"sharp\") as the actual object. But if I'm not mistaken, the difference is greater in lenses (like glasses) than in the average mirror, which tends to reflect light pretty well.","domain":"optical_engineering"}
{"url":"https://amlabels.co.uk/pd9530-wh-rt.html","date":"2021-03-06T22:41:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-10/segments/1614178375529.62/warc/CC-MAIN-20210306223236-20210307013236-00465.warc.gz","language_score":0.8511158227920532,"token_count":267,"dump":"CC-MAIN-2021-10","global_id":"webtext-fineweb__CC-MAIN-2021-10__0__46948411","lang":"en","text":"PowerScan PD9530 - 2D, White, Scanner Only\nCombining omnidirectional reading capabilities, which is typical in all area imaging scanners, with outstanding optical characteristics, result is a scanner that is able to read any kind of bar code, regardless of the orientation, from contact to over 1.0 m / 3.3 ft. Including Datalogic's latest decoding software that guarantees snappy reading in any type of environment allowing you to simply point the scanner at the barcode pull the trigger, and have it decode.\nDue to the scanner consisting of a handle shape, and well-balanced weight and an intuitive aiming system, to reduce unnatural wrist movement or rotation.\n- Snappy omnidirectional reading from contact to over 1.0 m / 3.3 ft\n- Supports 1D, stacked and 2D codes, postal codes and image capture\n- Water and Particulate Sealing Rating: IP65\n|Device Colour||White or Black|\n|Drop Resistence Concrete (M)||2|\n|Environment||Industrial, Warehouse, Logistic Centers|\n|Scan Distance||Up to 110cm|\n|Scan Engine||2D Imager|\n|Size in mm (WxDxH)||212 x 110 x 74|","domain":"optical_engineering"}
{"url":"http://www.hitachi-hightech.com/eu/product_detail/?pn=em-ht7700&version=","date":"2017-02-21T09:41:21Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-09/segments/1487501170700.71/warc/CC-MAIN-20170219104610-00246-ip-10-171-10-108.ec2.internal.warc.gz","language_score":0.8582115769386292,"token_count":871,"dump":"CC-MAIN-2017-09","global_id":"webtext-fineweb__CC-MAIN-2017-09__0__53224439","lang":"en","text":"Skip to main content\nThe HT7700 with Dual-Mode objective lens features superior high-contrast and high-resolution image quality together with analytical capabilities for biomedical and materials science. Digital design and sophisticated automation increase throughput for both novice and advanced users. Configure the HT7700 to meet all of your advanced sample analysis needs.\nCritical sample features can be easily identified in the viewing screen camera image on the LCD monitor while operating in ambient light.\nAll saved images are stored in an image database where the thumbnail of the image can be viewed.\nEach thumbnail image contains the microscope settings used when the image was captured.\nWhen the operator clicks on any thumbnail image and selects “auto drive”, the specimen stage is automatically driven to the position where the image was captured.\nThe whole-view function allows a whole image of the grid to be acquired and displayed in the stage operation window. The micro-trace function stores and displays the movement path. This allows the operator to easily differentiate between examined and unexamined areas of the specimen.\nImage navigation allows the storage of up to 100 stage coordinate positions and tilt angles. When a saved location is recalled, the instrument drives the specimen stage to the saved coordinate position and tilt angle.\nAPI is essential for imaging beam-sensitive specimens and for stabilizing specimens to prevent drift.\nOperators can select from several modes, as shown below (Whole scan, Frame scan, and Area Scan), to optimize sample stabilization results.\nBy means of API, the contrast of examined areas (left) matches the surrounding embedded tissue and resin (right). API effectively minimizes damage and specimen drift during observation.\nAuto multiple frame function and Auto panoramic function capture and delineate seamless panoramic images for large format results.\nDouble-Gap Objective lens design for HC and HR\nThe highly stable Hyper stage of the HT7700 with ±70° automated tilt capability, coupled with Hitachi’s unique reconstruction algorithms . including Topography Based Reconstruction (TBR)-can be used to create high quality tomographic reconstructions.\nThe combination of double-axis tomography and Hitachi’s unique reconstruction software can be used to achieve 3D reconstructions with fewer artifacts and more accurate results.\nBoth Bright Field (BF) and Dark Field (DF) detectors can be added to the HT7700 for STEM analysis.\nBF-STEM provides better contrast and image sharpness due to reduced chromatic aberration.\nFurthermore, scattered electrons are detected with high sensitivity by means of DF-STEM, resulting in better contrast for low-Z specimens.\nWhen an EDX detector is included, multiple elemental maps can be recorded simultaneously.\nEXALENS is a newly designed objective lens for the HT7700.\nBy achieving a smaller spherical aberration coefficient (Cs), a resolution of 0.144 nm (lattice, accelerating voltage : 120 kV) is obtained.\nEXALENS excels at high resolution imaging at lower accelerating voltage, facilitating analyses of soft materials, carbon-based nanomaterials and polymers.\nIn addition to various Hitachi holders (below), specialty holders for low temperature, heating, in-situ and other experiments are available from several manufacturers.\n|Resolution(lattice)||0.204 nm (100 kV)\n[0.144 nm (120 kV) for EXALENS : Optional]\n(Resolution is guaranteed by specific cameras.)\n|Magnification||Zoom||×200 - ×200,000(HC mode)\n×4,000 - ×600,000(HR mode)\n(Non-rotating zoom system)\n[×200 - ×300,000(HC mode)×2,000 - ×800,000(HR mode) for EXALENS : Optional]\n|Low Mag||×50 - ×1,000|\n|Accelerating voltage||40 - 120 kV|\n|Specimen stage||Eucentric goniometer stage|\n|Main camera||8 M pixel (vertical to horizontal ratio = 3 : 4)\nOther cameras are also available.\nThis journal addresses a wide range variety of research papers and useful application data using Hitachi science instruments.","domain":"optical_engineering"}
{"url":"http://www.fashioneyewear.co.uk/blog/ray-ban-glasses/ray-ban-rx5150/","date":"2014-04-25T01:12:43Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00483-ip-10-147-4-33.ec2.internal.warc.gz","language_score":0.976111888885498,"token_count":433,"dump":"CC-MAIN-2014-15","global_id":"webtext-fineweb__CC-MAIN-2014-15__0__155128053","lang":"en","text":"Ray-Ban is an extremely iconic brand that almost everybody world wide has heard of.\nIt all started in the 1930s, when Lt. John McCready returned from a hot air ballooning trip. Upon his return, he exclaimed that his eyes had suffered irreversible damage from the sun. Being in the US Air Force, he commissioned a pair of glasses that would protect his eyes from the sun as well as look good. German brand Bausch & Lomb won the contract and created the Ray-Ban brand in the process. Other pilots in the Air Force also wanted these glasses as they would be flying at high altitudes and needed protection, as well as comfort and style. Ray-Ban went on to publicly distribute the glasses, these were the first aviators. The company has now gone on to became the worlds number one brand, both in sunglasses and optical glasses, which were only introduced in 2003.\nThe Ray-Ban RX5150 is almost similar in style to the classic Wayfarer, though smaller in size. These glasses are extremely stylish and recognisable, though designed for those who may not be able to carry off a bigger, more brash, frame. The frame is fairly thick, but not overly so, and create a nice focal point to the face. The frame is fairly straight at the top and not catty, so will suit both men and women equally as well.\nMost lenses can be fitted to this frame. Single vision and varifocals are available, as are Transitions lenses for those who would prefer not to have the hassle of switching to prescription sunglasses when they venture into the sun. The lenses are available in four thicknesses, with thinner lenses recommended for those with medium to high prescriptions to stop them looking too bulky and visually unattractive. Coatings are available, with all lenses recommended to have anti-glare and scratch resistant coatings to prolong their life as well as stop unnecessary glare. Premium coatings include dust and water resistance which can mean a clear, unobscured view at all times, and smudge proofing.\nCLICK HERE to buy the Ray-Ban RX5150","domain":"optical_engineering"}
{"url":"https://www.huffmanperformance.com/product-page/msd-replacement-fiber-optic-cables-75562","date":"2024-02-28T02:23:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474690.22/warc/CC-MAIN-20240228012542-20240228042542-00231.warc.gz","language_score":0.7365962862968445,"token_count":169,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__20917680","lang":"en","text":"Manufacturer's Part Number:75562\nPart Type:Spark Plug Wire Sync Kit Components\nProduct Line:MSD Replacement Fiber Optic Cables\nSummit Racing Part Number:MSD-75562\nSync Kit Component Type:Fiber optic cable\nNotes:Fiber optic cable is 12 ft. in length.\nIn-Store Pickup:Choose In-store pick-up (OH, NV, GA, TX) on our web site.\nIn case you damage or misplace the fiber optic cable to your MSD spark plug wire sync kits, MSD offers this 12 ft. long optic cable as a quality replacement. These fiber optic cables are engineered to emit a clear signal to the power grid for individual cylinder timing, and are supplied with a yellow protective sleeve.\ntop of page\nbottom of page","domain":"optical_engineering"}
{"url":"http://theluckettsfair.com/manitoba/deep-space-optical-communications-pdf.php","date":"2019-07-16T19:26:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195524685.42/warc/CC-MAIN-20190716180842-20190716202842-00092.warc.gz","language_score":0.7886021137237549,"token_count":700,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__61816812","lang":"en","text":"Deep Space Optical Communications Free eBooks Download\nIPN Progress Report 42-177 May 15, 2009 Separating and Tracking Multiple Beacon Sources for Deep Space Optical Communications Kevin M. Birnbaum ,Adit Sahasrabudhey, andWilliam H. Farr... Deep Space Communications Downlink Data Rate Evolution Equivalent Data Rate from Jupiter 1012 1010 108 106 104 102 1 10-2 10-4 10-6 Baseline 3-W, 1.2-m S …\nWiley Deep Space Optical Communications Hamid Hemmati\noptical ground station concept for deep-space optical communications. Code rate can be obtained by comparing Code rate can be obtained by comparing link capacity with maximum achievable transmission rate for the PPM modulation... An Adaptive Threshold Detector and Channel Parameter Estimator for Deep Space Optical Communications R. Mukai, P. Arabshahi, T.-Y. Yan Jet Propulsion Laboratory\nNASA’s Deep Space Atomic Clock and Optical Communications\nINVITED PAPER Deep-SpaceOptical Communications:Future PerspectivesandApplications Current technologies available for deep-space optical data transmission and difference between ld50 and lc50 pdf aas the jpl optical communications telescope laboratory (octl) test bed for the future optical deep space network k. e. wilson, n. page, j. wu, and m. srinivasan*\nDeep Space Communications Science and Technology\nA quarter century of research into deep space and near Earth optical communications This book captures a quarter century of research and development in deep space optical communications from the Jet Propulsion Laboratory (JPL). the poetics of space pdf Deep Space Optical Communications Edited by Hamid Hemmati WILEY-INTERSCIENCE A JOHN WILEY & SONS, INC., PUBLICATION\nHow long can it take?\nLasers Are the Future of Optical Communications in Near\n- Deep Space Optical Communications Architecture Study\n- ASSSA Danışmanlık tarafından ò Free Space & Deep Space\n- Deep Space Optical Communications Wikipedia\n- NASA’s Deep Space Atomic Clock and Optical Communications\nDeep Space Optical Communications Pdf\nHAMID HEMMATI, PhD, is a principal member of the technical staff and the Technical Group Supervisor of the JPL Optical Communications Group, which is developing optical communication technologies to and from spacecraft in Earth orbit and deep space.\n- interest in deep space optical communications, with an emphasis on optical links from Mars. In this article link availability and data volumes from Mars to a ground-based optical network are\n- Deep Space Optical Communications Development Program Deep Space Optical Communications Development Program Lesh, James R. 1987-06-03 00:00:00 The technology development, spacecraft systems impact, design examples and overall development plan for optical deep space communications are described.\n- The paper describes how NASA’s Space Communication and Navigation Office will respond to the drivers, achieve the benefits, and mitigate the challenges, as documented in its Optical Communications Roadmap. Some nontraditional architectures and operations concepts are advanced in an effort to realize benefits and mitigate challenges as quickly as possible. Radio frequency communications …\n- ABSTRACT Enable 10x - 100x improvement in data return volume for NASA deep-space missions by developing key technologies for a Technology Demonstration Mission (TDM) of optical","domain":"optical_engineering"}
{"url":"http://new.yetri.am/traffic-lights/","date":"2022-09-27T05:57:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-40/segments/1664030334987.39/warc/CC-MAIN-20220927033539-20220927063539-00589.warc.gz","language_score":0.8663313984870911,"token_count":368,"dump":"CC-MAIN-2022-40","global_id":"webtext-fineweb__CC-MAIN-2022-40__0__262945098","lang":"en","text":"The illuminating devices created on a basis of light-emitting diodes of matrix are offered.\nQuasi – monochromatic uniform along the full length fluorescence increases distance of signal recognition by the driver.The absence of reflectors and color filter with special optical devices is excluded occurrence of “phantom” effect (false impression about signal operation).\nThe absence in the design of gas-filled elements is increased stability of electro security and waterproof.\nThe design of the traffic lights allows to install its on existing traffic light columns.\nCircuit design gives the opportunity to connect traffic lights on crossroads for complex operation.\nThe economy of energy as compared with incandescent lamp more than 5 time.\nThree modifications of traffic lights are produced:\nTL-20 (diameter of light blocks-20 cm);\nTL-15 (diameter of light blocks-15 cm);\nTL- 8 (diameter of light blocks-8 cm).\nTL – 8 is installed on walkway and has the sound device, which give to pedestrian sound signal:\n- Stop! Wait!\n- Attention! Crossing will soon open!\n- Attention! Crossing will soon close!\n- Crossing is open! May go!\n|Number of LED in light block||620||350||150|\n|Overall dimensions, mm||800x250x100||600x200x100||200x120x100|\n|AC supply voltage||200…240V|\n|Operating temperature||minus 600C..+850C|\n|Service life||15 year (more than 120 times as compared with other devices)|","domain":"optical_engineering"}
{"url":"https://mntransportationresearch.org/2017/03/21/infrared-sensing-not-yet-suitable-for-hovhot-lane-enforcement/","date":"2023-06-06T13:51:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-23/segments/1685224652569.73/warc/CC-MAIN-20230606114156-20230606144156-00556.warc.gz","language_score":0.9461506605148315,"token_count":1220,"dump":"CC-MAIN-2023-23","global_id":"webtext-fineweb__CC-MAIN-2023-23__0__65770937","lang":"en","text":"Could the same infrared technology that’s used by security firms to detect trespassers be used to spot carpool lane violators? Not yet, says new research sponsored by MnDOT, which shows that to consistently detect passengers through windshield glass, the system would require a laser that might harm people’s eyes.\n“Some vendors have proposed significant investments in sensing technology for HOV/HOT lane enforcement,” said Nikos Papanikolopoulos, Professor, University of Minnesota Department of Computer Science and Engineering. “This research demonstrated that it’s not safe, so the tests saved a lot of money and protected the well-being of drivers.”\n“Development is still continuing in the industry, so we will cautiously evaluate sensing technologies as they come along,” said Brian Kary, MnDOT Freeway Operations Engineer. “This research gave us a solid base of knowledge about what we’ll be looking for and what we need to avoid.”\nPapanikolopoulos served as the research project’s principal investigator, and Kary served as technical liaison.\nWhat Was the Need?\nHigh-occupancy vehicle/high-occupancy toll (HOV/HOT) lanes have gained popularity in recent years as a way to address highway congestion in urban areas. However, enforcing the provisions that either prohibit or charge a toll to single-occupant vehicles in HOV/HOT lanes can be challenging. Currently, enforcement is handled by law enforcement officers, but this is a labor-intensive process that can’t catch every violator and can create a traffic safety hazard.\nObtaining technology to assist officers with enforcement is a goal for MnDOT and many other agencies that operate HOV/HOT lanes, and several manufacturers are working to develop enforcement cameras. But this has proven to be a difficult task. Window tinting and glare from sun-light can thwart common sensing technologies like video cameras and microwave radar (commonly used in speed limit enforcement). Previous research using near-infrared sensors has shown promise, but none has produced completely successful results.\nThis study tested Honeywell’s Tri-Band Infrared (TBI) sensor, which was originally used to automatically detect intrusions at high-security entrance gates. In addition to a black-and-white camera and an illuminator, the TBI has two co-registered near-infrared cameras. The system takes advantage of the fact that human skin reflects infrared light much more effectively at wavelengths below 1400 nanometers. The TBI’s infrared cameras are sensitive to different wavelengths, one below and one above that threshold, and fusing the images from these two cameras makes silhouettes of faces more prominent.\nWhat Was Our Goal?\nThe goal of this project was to evaluate whether the TBI sensor is suitable for HOV/HOT lane enforcement applications.\nWhat Did We Do?\nInvestigators first tested the sensor outdoors on oncoming vehicles with known positions that ranged from 25 to 140 feet from the sensor. These tests demonstrated that the sensor had limited ability to penetrate modern vehicle glass, possibly because the system’s illuminator component was ineffective.\nInvestigators purchased two infrared lasers providing illumination at wavelengths of 1064 nanometers and 1550 nanometers to increase the TBI sensor’s ability to detect people through windshield glass. Then they conducted indoor tests to compare the impact of these illuminators with that of the original illuminator: With a test subject holding front passenger windows from several manufacturers in front of his face, the lasers were aimed at the subject while the TBI attempted to detect him.\nFinally, investigators conducted outdoor tests using the TBI to detect people in three test vehicles from the front and the side under both sunny and cloudy conditions. These tests were conducted both without illumination and with the aid of high-power incandescent spotlights modified to output infrared light, and with the sensor at several different distances from the vehicles.\nWhat Did We Learn?\nThe indoor tests demonstrated that when aided by supplementary illuminating lasers, the TBI sensor was capable of detecting humans through commonly manufactured vehicle window glass.\nHowever, to achieve successful results, these lasers must operate with high power in a narrow range of wavelengths. Despite operating outside the visible spectrum, they can damage human eyes when operating at the necessary power level to enable effective detection through glass. While investigators conducted this project’s indoor tests with adequate protection, there is currently no way to ensure safe usage of the lasers in real-world applications.\nIn the second outdoor tests, the unilluminated sensor successfully detected a passenger only once out of 24 attempts. With illumination, the sensor successfully detected people in some cases, particularly when there was no direct sunlight or reflective glare. One surprising discovery was that high-band (above 1400 nanometers) infrared light penetrated window glass more consistently, even though the low band had more spectral energy.\nDue to safety concerns about using the illuminating laser at a high enough power to penetrate all windshield glass, the system is not suitable for HOV/HOT lane enforcement. There is some indication that sensor technology has improved since the release of the TBI, and MnDOT will continue to monitor industry developments, but it has no current plans to pursue using infrared cameras for this application.\nThe technology may be suitable for other sensing applications that do not require high-power illumination. For example, the sensors might be useful in systems that provide information to drivers in real time, such as applications that identify available truck parking spaces in rest areas or that alert drivers to the presence of workers in work zones.\nThis Technical Summary pertains to Report 2017-05, “Sensing for HOV/HOT Lanes Enforcement,” published February 2017. The full report can be accessed at mndot.gov/research/reports/2017/201705.pdf.","domain":"optical_engineering"}
{"url":"https://gyanvigyan.in/refraction-of-light-laws-applications-and-example/","date":"2023-02-09T10:16:11Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-06/segments/1674764501555.34/warc/CC-MAIN-20230209081052-20230209111052-00827.warc.gz","language_score":0.9258031249046326,"token_count":497,"dump":"CC-MAIN-2023-06","global_id":"webtext-fineweb__CC-MAIN-2023-06__0__201768198","lang":"en","text":"Refraction of Light: Laws, Functions, and Example\nRefraction of Light: Laws, Functions, and Example: Refraction is the bending of a wave when it passes from one medium to a different. The bending is prompted as a result of variations in density between the 2 substances. Refraction of sunshine is among the most noticed phenomena, however different waves like sound waves and water waves additionally expertise refraction. Refraction makes it attainable for us to have optical devices equivalent to magnifying glasses, lenses, and prisms. It is usually due to the refraction of light that we’re capable of focus light on our retina.\nRefraction of light in water: When light travels from air into water, it slows down, inflicting it to vary path barely. This transformation of the path known as refraction. When light enters an extra dense substance (increased refractive index), it ‘bends’ extra in direction of the traditional line. The quantity of bending is determined by two issues: Change in pace, and Angle of the incident ray.\nLaws of Refraction of Light\nLaws of refraction state that:\n- The incident ray refracted ray, and the traditional to the interface of two media on the level of incidence all lie on the identical airplane.\n- The ratio of the sine of the angle of incidence to the sine of the angle of refraction is continuing. That is often known as Snell’s law of refraction.\nRefraction has many functions in optics and expertise. A number of the outstanding functions are listed under:\n- A lens makes use of refraction to type a picture of an object for varied functions, equivalent to magnification.\n- Spectacles are worn by folks with faulty imaginative and prescient use the precept of refraction.\n- Refraction is utilized in peepholes of home doorways, cameras, film projectors, and telescopes.\nAn example of refraction of light.\nAn example of refraction is the rainbow. The light rays bend as they enter water drops within the environment forming a rainbow.\nSnell’s law could be derived from Fermat’s precept, which states that the light travels the trail which takes the least time. By taking the by-product of the optical path size, the stationary level is discovered giving the trail taken by the light.","domain":"optical_engineering"}
{"url":"http://www.deafblindconfessions.com/blog/the-orcam-glasses-for-the-blind","date":"2018-12-11T03:19:47Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-51/segments/1544376823550.42/warc/CC-MAIN-20181211015030-20181211040530-00191.warc.gz","language_score":0.9404998421669006,"token_count":484,"dump":"CC-MAIN-2018-51","global_id":"webtext-fineweb__CC-MAIN-2018-51__0__261300840","lang":"en","text":"The OrCam device is a smart camera that sits on the user’s glasses and reads text aloud to people who are visually impaired or blind.\nWhile the OrCam device is not exactly “glasses for blind person”, it definitely looks that way. The device is so small and discreet, it is barely noticeable. Besides its compact size, there are many amazing OrCam features that make the device unique and accessible.\nEasy to Use\nOrCam MyEye is an intuitive wearable device with a smart camera that clips onto a regular pair of glasses and is able to 'read' text and convert it into speech relaying the message to the user. The device is activated by a simple intuitive gesture – pointing your finger or pressing a single button. Using OCR - optical character reading - technology, the device can read printed materials on almost any surface such as newspapers, books, computer screens, menus and more.\nMany people who are visually impaired or blind have to carry around a heavy magnifying glass to read text. The OrCam MyEye is small and light and simply attaches to the right side of the user’s glasses frame. The camera weighs ¾ of an ounce and has a thin wire, easily hidden behind the ear, which connects to the base unit or “brain” of the device. The base unit is about the size of a cellphone and can easily sit in one’s pocket or on a belt strap.\n“You are what you wear.” Wearable technologies have grown tremendously in the past few years. Smart electronic devices that can be worn on the body are practical and discreet. The OrCam is no exception. Although they are not exactly glasses for the blind person, the device sits on the individual’s glasses frame and is so discreet that it can barely be seen by others allowing the user to fit in with the crowd.\nUnlike other OCR technologies, the OrCam does not require a scanner connected to a computer or internet connection. All the information stored in the device is private and only accessible to the user.\nFor people who are visually impaired or blind and have conditions that cannot be corrected by glasses or surgery, the OrCam MyEye can be life-changing.\nWho would have thought that this little camera situated on a pair of glasses could help people who are blind or visually impaired regain their independence?","domain":"optical_engineering"}
{"url":"http://conneriara628.jiliblog.com/5134609/eye-surgery","date":"2018-04-22T16:31:46Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-17/segments/1524125945624.76/warc/CC-MAIN-20180422154522-20180422174522-00273.warc.gz","language_score":0.9481982588768005,"token_count":1311,"dump":"CC-MAIN-2018-17","global_id":"webtext-fineweb__CC-MAIN-2018-17__0__17305061","lang":"en","text":"Eye Surgical treatment has come to be a mainstream method of vision correction, and this article will certainly discuss the advantages and negative aspects of three different methods being provided to the clinical customer.\nLasik Eye Surgical treatment\nLASIK is the acronym for Laser-Assisted Sitting Keratomileusis and also is an eye surgical system which completely corrects vision by eliminating a slim layer of the cornea. This treatment functions best on people with moderate to high degrees of nearsightedness (nearsightedness), reduced to modest levels of hyperopia (farsightedness) and also astigmatism related to nearsightedness, and who have thick corneas. It is the most popular medical vision improvement approach.\nPeople with typical eye view see things plainly due to the fact that images are brought right into an appropriate centerpiece by the cornea and also lens of the eye. Ideally, the cornea's curvature is evenly matched to its length in a normal eye. People with astigmatism, nearsightedness or hyperopia have actually off-and-on shaped corneas, so the items seen are not concentrated properly. LASIK adjustments corneal form by exact removal of corneal tissue, and by doing so deals with the eyes' focusing power.\nThere are, however, threats to LASIK eye surgical procedure.\nThere is a remote possibility of complete loss of vision. If this takes place, it is normally because the patient had a pre-existing problem which ought to have averted the surgical treatment in the first place, such as maternity, cataracts, arthritis, diabetes mellitus, glaucoma, or lupus. People with large students are also inadequate prospects for LASIK. Dry eye syndrome will certainly be aggravated by this treatment.\nA few individuals whine that they permanently see \"ghost\" photos, have blurred vision, lessened contrast as well as negative night vision. When LASIK wased initially presented, 5% of clients had post-operative issues; however, refinements in the treatment have actually caused this rate to go down to much less than 1% if LASIK is done by proficient professionals and also clients are appropriately evaluated prior to surgical treatment. If issues do take place, they can commonly be resoved by a retreatment.\nFDA has actually accepted LASIK laser eye surgery considering that 1998. While there are a great deal of completely satisfied patients, there are however no long term research studies regarding its impacts. Understand the constraints and also the dangers of LASIK eye surgical procedure prior to you sigh up for the procedure.\nThough less well known, these small implants can improve vision in patients with mild to modest nearsightedness without the danger of long-term eye damage fundamental in the tissue elimination strategy of LASIK. Intacs are semi-circular disks dental implanted in the cornea which extend it to assume a flatter shape. Though a little much less accurate than LASIK, they are removeable and also changeable, so if the client has an unexpected over- or under-correction, the implant could be eliminated and an additional of a various size put to acquire the desired correction. The implants lie beside the cornea, so the central aesthetic area is completely undamaged and intact, and the strength of the cornea is undiminished, making it a far better choice for pilots and those that participate in contact sporting activities where eye injury is an Learn More opportunity.\nIntacs disagree for severe nearsightedness and greater than minor astigmatism (1.00 diopters), as the cornea could just be extended up until now. If the Intacs are gotten rid of, vision returns to its preoperative degree. Besides vision correction, Intacs are additionally used to deal with keratoconus.\nIntacs are FDA approved and also 10 year researches have actually disclosed no major issues with Intacs and also few person complaints; nonetheless, since the procedure takes a lot more training than LASIK, there are fewer eye surgical treatment clinics providing it. However, the Intacs site provides a listing of specialists in each state, too a couple of in Canada, Europe and Mexico.\nSince many individuals do not intend to risk LASIK and Intacs can not assist Visit Website those with serious vision troubles, intraocular lens implants (IOL) are a brand-new alternative accepted by the FDA in 2004 to deal with moderate to extreme nearsightedness. The Craftsmen lens, made by Ophtec, resembles the sort of lens dental implant used to bring back vision complying with cataract eye surgical treatment.\nThe new IOL, called the Artisan, is meant for only patients that have 2.5 diopters or much less of astigmatism.\nThe fabricated lens does not change the all-natural lens, however is placed in front of it. The main trouble discovered with the dental implant was the consistent loss of endothelial cells in the corneas of individuals who received the implants. The endothelium is a layer of cells that line the undersurface of the cornea and also are important in maintaining the cornea clear. A three-year research revealed a constant constant loss of endothelial cells of 1.8 percent a year. At this moment, nobody can forecast whether this loss will certainly proceed at the same price indefinitely, or perhaps its influence on corneal feature.\nTo reduce long-term results of the gadget on the corneal endothelium, the FDA is requiring that the brand-new lenses be identified to define that they must only be dental implanted in clients whose corneal endothelial cells are thick adequate to endure small cell loss.\nMuch more serious issues were few: retinal detachment (0.6%), cataract growth (0.6%), and corneal swelling (0.4%). The FDA is needing Ophtec to conduct a five-year follow-up survey of its dental implant clients to much better evaluate the post-surgical occurrence of cataract development, retinal detachment and also various other sensory conditions.\nThe Artisan lens is meant to be a permanent implant.Though it can be eliminated operatively, vision may not always go back to just what it was prior to getting the lens. Since it does not influence astigmatism, patients with this problem may still call for glasses.","domain":"optical_engineering"}
{"url":"https://eprints.ncl.ac.uk/228357","date":"2023-11-29T12:28:39Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100081.47/warc/CC-MAIN-20231129105306-20231129135306-00164.warc.gz","language_score":0.7304829955101013,"token_count":296,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__223994842","lang":"en","text":"Browse by author\nLookup NU author(s): Dr Pablo Docampo\nThis work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).\nIn this work, we describe the role of the different layers in perovskite solar cells to achieve reproducible, ~16% efficient perovskite solar cells. We used a planar device architecture with PEDOT:PSS on the bottom, followed by the perovskite layer and an evaporated C60 layer before deposition of the top electrode. No high temperature annealing step is needed, which also allows processing on flexible plastic substrates. Only the optimization of all of these layers leads to highly efficient and reproducible results. In this work, we describe the effects of different processing conditions, especially the influence of the C60 top layer on the device performance.\nAuthor(s): Hu H, Wong KK, Kollek T, Hanusch F, Polarz S, Docampo P, Schmidt-Mende L\nPublication type: Article\nPublication status: Published\nPrint publication date: 23/04/2016\nAcceptance date: 21/04/2016\nDate deposited: 28/09/2016\nISSN (print): 1431-5165\nISSN (electronic): 1420-3049\nPublisher: MDPI AG\nAltmetrics provided by Altmetric","domain":"optical_engineering"}
{"url":"http://www.jim.or.jp/journal/j/71/11/1061-1065.html","date":"2021-12-02T09:32:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964361253.38/warc/CC-MAIN-20211202084644-20211202114644-00165.warc.gz","language_score":0.9291923642158508,"token_count":239,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__34693057","lang":"en","text":"Kaita Ito and Manabu Enoki\nDepartment of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo 113-8656\nA laser AE method is non-contact measurement of AE by using laser interferometer sensor. However, the sensitivity of laser interferometer is lower than conventional piezoelectric sensor. In this study, a method to improve signal-to-noise ratio of the output waveform of interferometer is investigated. A new system was developed to record and analyze the waveform continuously. Continuous waveform was transformed into time-frequency-magnitude data by short time Fourier transform (STFT) or wavelet transform. After noise component in this time-frequency-magnitude data is cut, inverse STFT or WT is applied to obtain clear AE signals in time domain. Simulated AE signal generated by thermal stress of YAG laser pulse was analyzed and detection capability of AE event was improved compared to the conventional signal processing method.\nacoustic emission, laser acoustic emission method, continuous recording, time-frequency analysis\nPlease do not copy without permission.","domain":"optical_engineering"}
{"url":"https://namtech.co.uk/safe-laser-solutions-empowering-patients-through-technology/","date":"2024-04-24T21:08:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296819971.86/warc/CC-MAIN-20240424205851-20240424235851-00696.warc.gz","language_score":0.9160882234573364,"token_count":743,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__161037850","lang":"en","text":"In recent years, laser technology has made significant strides, offering safer and more efficient solutions across various industries. From healthcare to manufacturing, the advantages of safe laser technology are becoming increasingly apparent. One such advancement is the emergence of safe laser systems, which boast several key benefits over traditional laser devices. Let’s delve into the advantages of safe laser technology and its transformative impact on diverse fields.\nEnhanced Safety Measures: Safety is paramount when it comes to laser technology. Safe laser systems incorporate advanced safety features to mitigate potential hazards associated with laser use. These measures include automatic shutdown mechanisms, controlled emission parameters, and built-in sensors to detect and prevent accidental exposure. By prioritizing safety, these systems minimize the risk of injury to operators and bystanders, ensuring a secure working environment.\nPrecision and Accuracy: Safe laser technology offers unparalleled precision and accuracy, making it indispensable in applications requiring fine-tuned control. Whether in medical procedures, such as laser eye surgery or dermatological treatments, or industrial processes like micro-machining and circuit board manufacturing, the ability to precisely target specific areas with minimal collateral damage is a significant advantage. This precision enhances efficiency, reduces material wastage, and improves overall outcomes.\nVersatility and Adaptability: Safe laser systems are versatile tools suitable for a wide range of applications. They can be tailored to meet the specific requirements of various industries, from intricate surgical procedures to high-precision manufacturing tasks. Moreover, advancements in laser technology have led to the development of multi-functional systems capable of performing different functions without the need for extensive reconfiguration. This versatility streamlines operations and maximizes productivity across diverse fields.\nNon-Invasive Nature: In medical and cosmetic procedures, safe laser technology offers non-invasive alternatives to traditional surgical methods. Techniques such as laser therapy, skin rejuvenation, and tattoo removal utilize precise laser beams to target tissues without causing significant damage to surrounding areas. This non-invasive approach reduces patient discomfort, accelerates recovery times, and minimizes the risk of complications, making it an attractive option for both patients and practitioners.\nEnvironmental Friendliness: Safe laser systems are designed with environmental considerations in mind. Unlike conventional methods that may involve harmful chemicals or produce hazardous by-products, laser technology offers a cleaner and more sustainable solution.https://lezermindenkinek.hu/ By harnessing the power of light energy, these systems minimize waste generation, energy consumption, and carbon emissions, contributing to eco-friendly practices and environmental conservation efforts.\nCost-Efficiency: While the initial investment in safe laser technology may seem significant, its long-term benefits outweigh the costs. By optimizing processes, reducing downtime, and enhancing productivity, safe laser systems offer a compelling return on investment. Moreover, the durability and reliability of these systems minimize maintenance expenses and downtime, resulting in lower operational costs over their lifespan.\nInnovation and Advancement: The field of safe laser technology is continually evolving, driven by ongoing research and technological advancements. New materials, techniques, and applications are constantly being developed, expanding the capabilities and possibilities of laser technology. As innovations continue to emerge, safe laser systems will play a crucial role in shaping the future of various industries, unlocking new opportunities and driving progress.\nIn conclusion, the advantages of safe laser technology are evident across multiple domains, from healthcare and manufacturing to research and beyond. With its emphasis on safety, precision, versatility, and sustainability, safe laser systems are revolutionizing processes, improving outcomes, and paving the way for innovative solutions. As technology continues to evolve, safe laser technology will undoubtedly remain at the forefront of progress, offering safer, more efficient, and more sustainable alternatives to traditional methods.","domain":"optical_engineering"}
{"url":"https://www.gadgetsay.com/light-l16-extraordinary-camera-16-lenses/","date":"2024-02-27T07:24:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474671.63/warc/CC-MAIN-20240227053544-20240227083544-00385.warc.gz","language_score":0.9559309482574463,"token_count":570,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__30026797","lang":"en","text":"Light L16: As you are on Gadgetsay, We came up with Light camera gadget which introduced their first camera in October. The L16 is the first camera of Light. It is not a well-known company, but the camera could make it in the DSLR competition. Rajiv Laroia is the chief technological officer of Light. They claim that this phone will be easy to handle. It is an unusual camera which we have never seen before.\n[su_button url=”http://amzn.to/2qd0unY” target=”blank” size=”5″]Amazing Pocket Camera[/su_button]\nLight L16 was said the first multi-aperture computational camera. This multi-aperture camera was pre-ordered by various customers. The pre-order of the camera started at $1,699. At an ideal platform, the pre-order process got closed due to excessive pre-orders. L16 is not comfortable enough to handle. The Light L16 will soon arrive in the market. It is known an unusual camera only because of 16 lenses technology.\nLight L16 will give a tough competition to the DSLR cameras. It is capable of capturing high-quality pictures like a DSLR. It is getting popular day by day because of the unusual features. The L16 gathers light data from 16 separate lenses. The sensors are unexpectedly attached to its rear. It has many more exciting features which are given as follows.\nThe L16 cameras have five 28mm f/2 wide-angle lenses with five 70mm f/2 midrange lenses. It also contains six 150mm f/2.4 telephoto lenses. It comes with proof 52 Megapixels so that you can capture beautiful HD quality portraits and landscapes. It can also be used by the professional photographers. You can also click advance photos in low-light. The L16 has a 5″ inches touchscreen on the rear. The focal lengths are within 35mm and 150mm. The camera also records 4K videos. It contains a depth-mapping technology for modifying the depth of the picture.\nSome other features of the L16 camera are IP54 water and dust proof, regular 1/4″-20 tripod mount, GPS, accelerometer, Wi-Fi, HDR click, and a dual-tone LED flash. Only limited pictures of this camera are available online. We can only view the front and sides of the camera. The information of control and display are not yet available. The camera is priced at $1,700. The current status of this camera is limited for pre-order. The Company will begin the delivery of L16 soon. July 2017 is the rumored shipping date. The stocks are limited so hurry.","domain":"optical_engineering"}
{"url":"http://bloggercav.blogspot.com/2012/06/is-this-doc-browns-real-flux-capacitor.html","date":"2019-02-23T17:49:09Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550249508792.98/warc/CC-MAIN-20190223162938-20190223184938-00225.warc.gz","language_score":0.9565089344978333,"token_count":518,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__48518279","lang":"en","text":"SYDNEY: Capturing a billion pixels in a single snapshot could be one step closer to becoming mainstream, with the development of a new prototype gigapixel camera.\nA team of U.S. engineers described the camera, called AWARE-2, in a letter in the journal Naturetoday.\nGigapixel imaging captures details covering the entire human visual field at five-times better resolution, meaning the image can later be examined by zooming in without losing clarity.\n“With a camera capable of simultaneously focusing on everything, the photographers job becomes looking for the interesting events in the already captured images, rather than predicting the events before they happen,” said David Brady, an optical physicist at Duke University in North Carolina, and co-author of the study.\nDevice weighs 45kg, costs more than $100k\n“With such a photograph, one might say – when observing Sydney Harbour, for example – ‘This is beautiful, but I wish I could examine it in more detail with a photograph.’”\nThe AWARE-2 optical system consists of a 6cm ball-shaped lens surrounded by an array of 98 micro-cameras, each with a 14-megapixel sensor. The device is housed in a 75cm x 75cm x 50cm box and the optical system and case combined weighs about 45kg. The cost for such a system today would be similar to that of a high-resolution digital movie camera, Brady said – between $100,000 and $250,000.\nGigapixel photography has several uses for science, including observing “dynamic events in the sky, such as meteor showers and asteroids, which cannot be captured in narrow-field telescopes,” said Brady. Other uses include wildlife and environment monitoring over a wide field, or even live-streaming sporting events online: viewers could zoom in and watch the game from whatever perspective and resolution they choose.\nA pixel is a small light point in a digital image, concentrations of which together form a picture. Today's cameras capture images measured in megapixels – one million pixels – normally between eight and 40 for an average consumer device. A thousand megapixels or a billion pixels, make a gigapixel.\nAlready in use today are highly specialised gigapixel astronomical telescopes and airborne surveillance systems, which are comparatively large and have a narrow field of view, said Brady. There are also some film-based gigapixel cameras. Most of today's gigapixel images are made by digitally merging several megapixel pictures.","domain":"optical_engineering"}
{"url":"http://thai.sfpfibermodule.com/sale-9327828-80km-1550nm-sm-xfp-10g-optical-transceiver-cisco-compatible-fiber-optic-transceiver.html","date":"2020-01-18T05:36:58Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250592261.1/warc/CC-MAIN-20200118052321-20200118080321-00154.warc.gz","language_score":0.8421095609664917,"token_count":917,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__219970841","lang":"en","text":"|Form Factor:||10Gbps XFP Optical Transceiver||Data-rate:||10GBASE-ER|\n|Form-factor:||XFP Optical Transceiver||Connector:||LC|\n80KM 1550nm SM XFP 10g Optical Transceiver , Cisco compatible fiber optic transceiver\n10Gbps XFP Optical Transceiver, 80Km Reach\n♦ XFP MSA Compliant\n♦ Data rate from 9.95 Gbps to 11.1Gbps\n♦ No Reference Clock required\n♦ Cold Start up Wavelength Compliance\n♦ EML transmitter and APD receiver\n♦ Link length up to 80km\n♦ Low Power Dissipation 3.5W Maximum\n♦ -5ºC to 70ºC Operating Case Temperature\n♦ Diagnostic Performance Monitoring of module temperature, supply\n♦ Voltages, laser bias current, transmit optical power, receive optical power\n♦ RoHS compliant and lead free\n♦ SONET OC-192&SDH STM 64\n♦ 10G Ethernet\n♦ 80 km 10G Fiber Channel\nGezhi's XFP Transceiver is designed for 10G SDH, 10G ZR and 10G Fiber- Channel applications.\nThe transceiver consists of two sections: The transmitter section incorporates a colded EML laser. And the receiver section consists of a APD photodiode integrated with a TIA. All modules satisfy class I laser safety requirements. XFP transceiver provides an enhanced monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage.\n|Part Number||Product Description|\n|GX-H155-ZRC||1550nm, XFP, 10Gbps, 80km, 0ºC ~ +70ºC|\nCisco, Alcatel, H3C, HP, Huawei, linksys,Exteme, Juniper, 3COM, Intel, Nortel, Dell, Brocade,\nNetgear, Avaya, Alliedtelesis, Bdcom, D-link, RedBack, Emulex, Enterasys, Force10, Zyxel, IBM, DCN, Foundry, ZTE, Planet, IP-COM, Telco, TRENDnet, Vixel, TP-Link...\nGEZHI Photoncis is founded in 2011, which is a leading provider for optical active and passive products in China. We design,develop,manufacture and distribute the optical products to satisfy customer's need for optical communication in Ethernet,SDH/SONET,Video monitor,FTTH,WDM Netowrk, Access Network, CATV Network, EPON System etc.\nProfessional, delicated and passional, With reliable quality and competitive pricing,,GEZHI Photonics supply over-expected products and service to customers,In the past years, GEZHI have won the confidence and great reputation from domestic and oversea customers.\n1. How is Gezhi Photonics' product quality?\nGezhi Photonics is a professional manufacturer with over 5 years' experience in Fiber OpticTransceivers and Passive Components. We have strict quality control system and all the products have undergone severe compatibility test, 48h temperature circle test, etc before launch in the market.\n2. Are your products compatible with my system?\nAll our products are manufactured in strict compliance to MSA standard, they can work well with those brands that do not have compatibility requirements, such as, IBM, DELL, SUN, etc But some brands such as CISCO, HP, Juniper etc, might need their private coding inside for compatibility, if you can let us know the brand and model of your systems , we might solve the compatible issue before goods delivered.\n3. Why Gezhi Photonics' transceivers and components so much cheaper than others?\nBecause We are original manufacturer and we sell with direct marketing prices.\n4. What are the difference between a Cisco SFP+ Transceiver and a Gezhi' SFP+ Transceiver?\nThe sticker! Other than the Cisco sticker, a CISCO SFP-155M-L2C is identical to a Gezhi's GS-1231-L2CD\n5. Could i use our own logo and label?\nYes,we could provide a OEM service and make the products with your own label.","domain":"optical_engineering"}
{"url":"http://www.wnsnetworkservices.com/News/112/January-2017---Diagnose-fibre-fault-and-restore-connectivity-for-80-users-in-a-remote-building.html","date":"2022-08-15T06:56:00Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-33/segments/1659882572161.46/warc/CC-MAIN-20220815054743-20220815084743-00313.warc.gz","language_score":0.9691874384880066,"token_count":125,"dump":"CC-MAIN-2022-33","global_id":"webtext-fineweb__CC-MAIN-2022-33__0__206974703","lang":"en","text":"January 2017 - Diagnose fibre fault and restore connectivity for 80 users in a remote building\nWNS have recently been engaged to diagnose a faulty fibre optic cable which was thought to be limiting the service to 80 network users in a remote building. WNS staff performed extensive testing using an OTDR and determined that the cable had been badly damaged in a collapsed duct. The original fibre was of OM1 internal construction and therefore not suitable for a duct or consideration for repair. WNS have subsequently replaced the fibre with a new 12 core Brand Rex OM4 Loose tube duct grade cable which has restored full network connectivity to the building.","domain":"optical_engineering"}
{"url":"https://ringierevents.eventbank.cn/en/event/14659/","date":"2018-08-14T17:42:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-34/segments/1534221209216.31/warc/CC-MAIN-20180814170309-20180814190309-00006.warc.gz","language_score":0.8520713448524475,"token_count":903,"dump":"CC-MAIN-2018-34","global_id":"webtext-fineweb__CC-MAIN-2018-34__0__64476914","lang":"en","text":"Laser equipment can be applicated in almost industry such as automobile manufacturing, aeronautics and Astronautics, machinery manufacturing, plate gold processing and even national defense and military. And laser technology has become an indispensable supporting technology for many industries. The core of China manufacture 2025 is intelligent manufacturing, one of whose cores is photoelectric technology. And one of the core of photoelectric technology is the laser equipment and the core component laser.\nAccording to China's laser industry development report 2018, the size of China's laser equipment market will exceed 60 billion yuan in 2018 with a growth rate of over 20%. With the development of laser technology and the expansion of application fields, China's laser equipment market will continue to grow.\nAgainst this background, Laser Technology Integration & Application Summit 2018\nwill be held in The Longemont Hotel Shanghai on October 18th to 19th. The forum will set up two sub forums of \"integration\" and \"application\" to discuss the innovation of laser technology and the application of laser processing equipment respectively. The conference will gather more than a hundred of top experts, scholars and industry leaders at home and abroad, aiming to provide an innovative and efficient platform for technical exchange and sharing for the technical elite, and jointly to promote the development of the laser industry.\nReasons why you should attend\nTo acquire the latest technology and R&D results\nTo discuss practical cases from leading companies that you can use\nGathering industry experts to answer your questions to enhance the competitiveness of your company\nExhibition area and technical seminar show latest innovative products and solutions To develop business partners through face to face communication\nThis is an industry feast for laser technology integration and application. You can not only\naccurately grasp the development trend of laser technology, but also face the end users to understand their real needs. Topics on technology innovation of laser, numerical control system & optical element and application in automobile, electronic, aeronautics and astronautics industry will be presented by upstream components suppliers and downstream end users. This is a feast that can't be missed. It is worth the entry of all industry practitioners.\nChinese major laser processing integrated equipment suppliers：\nHan's Laser Technology Industry Group Co., Ltd\nWuhan HG Laser Engineering Co,.Ltd\nFoshan Beyond Laser\nShenzhen DNE Laser Science and Technology Co., Ltd\nPENTA LASER Technology Industry Group Co., Ltd\nWUHAN Tianqi Laser Equipment Manufacturing Co.,Ltd\nSuzhou Lead Laser Technology Co., Ltd\nDongguan Glory Star Laser Technology Co., LTD\nJinan Bodor CNC Machine Co., Ltd\nSuzhou Tianhong Laser Co., Ltd\nShenyang Dalu Laser Technology Co., Ltd\nWuhan Chutian Laser (Group) Co., Ltd\nGD HAN'S Yueming Laser Group Co., Ltd\nShanghai Unity Prima Laser Machinery Co. Ltd\nWuhan Golden Laser Co., Ltd\nGuangzhou Laisai Laser Equipment Co., Ltd\nWho Will Attend：\nAutomotive/Aerospace/Mold/Mechanical/Sheet Metal Manufacturers\nLaser and Laser Equipment Integrators\nLaser optical materials and device suppliers\nLaser components and material suppliers\nAutomation system and equipment suppliers\nTel: 86-23-8866 8888\nFor additional event or venue information, please send an email to email@example.com\nConference Manager: Ms. Karina Zuo\nConference Manager: Mr. Phyllice Qi\nRingier Events covers the industries of plastics, food, personal care, medicine & healthcare, nonwovens, coatings & ink, automobile, metal, mold & die, package, composite material, and the latest technologies at over 20 high levels technical conferences held each year, and brings key executives responsible for testing, evaluating, recommending and purchasing equipment, systems and material on behalf of their companies, quality speakers and representations from sponsors together create a valuable platform where information can be exchanged, new business contacts made. Services, including webinars and events, is also Ringier's existing service. Our turn-key service can help you effectively promote your events, arrange additional qualified speakers, manage webinar & registrations, and we provide whole set service during the event.\nFor more information, please visit: www.ringierevents.com","domain":"optical_engineering"}
{"url":"https://global.xgimi.com/blogs/buying-guide/choosing-a-home-theater-projector-that-suits-your-needs","date":"2024-02-23T03:37:15Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474360.86/warc/CC-MAIN-20240223021632-20240223051632-00137.warc.gz","language_score":0.896743655204773,"token_count":1930,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__104257942","lang":"en","text":"Choosing A Home Theater Projector that Suits Your Needs\nBy XGIMI Tech - 2023-12\nIntroducing New Projector Technology\nLasers and LEDs have become the most popular light sources for home theater projectors because of their many perks. However, while both light sources are exceptional, they have their shortcomings. The most notable problem with using either, which has remained a problem for projector manufacturers, is that they cannot balance image quality with viewing comfort.\nXGIMI always tries to bring innovations to the projector industry to offer you the best solution to your home theater needs. The XGIMI HORIZON Ultra solves this age-long problem with its latest technology advancements, the Dual Light technology. XGIMI HORIZON Ultra combines Laser and LED to provide exceptional image quality and comfortable viewing simultaneously. This article delves into home theater projectors and discusses the outstanding features of the HORIZON Ultra.\nLaser Home Theater Projector vs. LED Home Theater Projector\nLaser home theater projectors don’t use a light bulb to project like other traditional projectors. Instead, it uses laser beams to project images onto a screen or surface. On the other hand, LED home theater projectors are portable projectors that use LED lamps as a light source to project images to a surface. While the main difference lies in their definitions, there are other differences between laser and LED projectors. They include:\n|Consistent and accurate color performance over time\n|Accurate colors but can decrease over time\n|High brightness, suitable for use in bright rooms or outdoor settings\n|Lower brightness levels, less ideal for use in bright rooms or outdoor settings\n|Longer lifespan than traditional lamps\n|Longer lifespan than traditional lamps\n|Better contrast and deeper blacks\n|Lower contrast ratio\n|Generally more expensive\n|Generally less expensive\nWhat Should I Look Out for When Buying Home Cinema Projector?\nYour home cinema has to be appropriately planned for, which includes looking for the best home movie theater projector. Just any projector won't do. If you want to have that cinematic experience, this is what you should consider:\nAll projectors come with light sources to illuminate the picture displayed, and it's essential to know how bright a projector is before buying. Brightness directly influences image quality, as low brightness will make the picture appear dim.\nHowever, the right brightness level will display sharp and stunning images. Projector brightness is measured in lumens; the higher the lumen, the brighter the projector. You must consider the screen size and ambient light to find the appropriate lumen for your home cinema. A large screen needs more lumens, while a smaller screen size will require less. Also, ambient light affects brightness, so you will need more lumens for a lit room or when watching during the day than watching at night or in a dark room.\n2. Image Quality\nSeveral factors determine image quality, including contrast ratio, brightness, and color accuracy. But the primary one you should look out for is the image resolution. Resolution refers to the number of pixels displayed per inch of an image, horizontally and vertically. These pixels are the smallest unit of an image.\nSo, typically, the more pixels a projector can display, the higher the resolution, which determines how crisp, clear, and detailed an image will be. The best resolution for home cinema is full HD (1920 x 1080 pixels), true 4K (3840 x 2160 pixels), or 8K resolution (7680 x 4320 pixels). Depending on your budget, you can opt for a full HD or a 4K home theater projector.\n3. 3D Compatibility\n3D-compatible projectors use specialized technology to reproduce three-dimensional impressions on a two-dimensional surface without distortion. They project two different images for each eye, creating an illusion of depth. The best home cinema projector for an extraordinary cinematic moment is 3D-compatible. With amazing 3D technology, every viewing moment becomes magical as the quality of your content doubles and deepens with the 3D effect.\nAnother crucial factor to consider is the available input or connection options. These connectivity options enable you to connect other devices to your projector to transfer files. A good home cinema projector should offer several options so you can have a wide variety to choose from. This must include wired options like HDMI, USB, DVI, and VGA and wireless ones like Bluetooth and WiFi. Before buying, always check if the projector is compatible with your device connection option.\nYou need great speakers for an immersive cinema experience in the comfort of your home, so finding a home theater projector with powerful speakers that produce clear sounds is vital. The built-in speakers should be able to match the quality of an external speaker, delivering loud and clear audio that accentuates your cinematic experience.\nHome Theater Projector Recommendation\nIf you are looking for the best home entertainment projector for immersive cinematic moments, you need not look further than XGIMI’s product list. With a dedication to offering nothing but the best, XGIMI has designed a world-class long-throw projector to meet your home theater needs:\nXGIMI HORIZON Ultra：\nThe new XGIMI HORIZON Ultra is a premier long throw 4K home cinema projector that combines LED and laser light sources to bring you the best. With stellar features like Dolby Vision, the HORIZON Ultra is a top choice for high-quality home entertainment. Below are the exceptional features it offers:\nThe XGIMI HORIZON Ultra is the world’s first Dolby vision-enabled long-throw home projector. Dolby Vision enhances the quality of the images projected by the HORIZON Ultra, brightening highlights up to 40 times and enhancing dark shades up to 10 times. Thanks to Dolby Vision, you can enjoy breathtaking views and detailed and clear images that beat the regular pictures.\n●Dual Light Technology\nThe dual light technology is one of XGIMI HORIZON Ultra’s most remarkable features. XGIMI found a way to combine LED with a laser light source, enhancing your projector's benefit for a more comfortable and immersive viewing experience. Both light sources complement each other and compensate for their shortcomings: Laser provides an ultra-wide color gamut and ultra-high brightness, while LED enables you to watch the natural spectrum for a long time without tiring. This synergic combination balances image quality and viewing comfort and offers a continuous spectrum that eliminates flash spots and color edges for more comfort.\n●2300 ISO Lumens\nIf your projector is not bright enough, the images produced will appear dull and washed out, significantly affecting the image quality and color accuracy. This is why the brightness is essential. XGIMI Ultra has an outstanding 2300 ISO lumens. With such a high lumen, you can view images even over long distances and in a lit room without the picture appearing dull.\n●Up to 200’’ image size\nThe cinema experience is incomplete without the big screen, so the XGIMI HORIZON Ultra comes with an adjustable screen size, enabling you to choose a suitable size for your theater room. This long-throw projector allows you to increase your screen size to 200 inches without compromising image quality, so you can enjoy quality viewing without leaving the comfort of your home. Set up your cinema at home and watch movies on a large screen for a whole new cinematic experience with the HORIZON Ultra.\nHORIZON Ultra takes you into another realm of entertainment with its stunning 3D display when you put on the XGIMI 3D glasses. This full HD 3D projector invites you to the mesmerizing world of 3D projection, where three-dimensional images are displayed on a two-dimensional surface. Full HD 3D projectors offer better resolution and image quality. Hence, you don't just get depth, but you are offered an unmatched quality experience. You get more than you ask for with the XGIMI HORIZON Ultra.\n●Harman Kardon Sound\nEnjoy clear audio with the impressive 12W dual Harman Kardon speakers built in the HORIZON Ultra. There’s no need for external speakers. With the built-in Harman Kardon speakers, augmented with Dolby Audio, you can experience quality audio like never before. The XGIMI HORIZON Ultra promises low distortion and crystal-clear sound, combined with high-quality images to give you an unforgettable theater experience, making it the best projector for home theater.\nThe XGIMI HORIZON Ultra has various input and connection options, including wired and wireless. It supports WiFi and the latest Bluetooth version, 5.2. These wireless technologies allow you to connect the projector to other WiFi-supported and Bluetooth-enabled devices seamlessly. It also features wired ports. This includes DC, LAN, USB, and HDMI as input ports and headphones and OPTICAL as output ports. With the HORIZON Ultra, you have many connection choices for optimal use.\nNext-level 4K with Dolby Vision\nWith 2300 ISO lumens, you get the best of both worlds—ultra-high brightness plus realistic color both night and day.\nA New Era of Environmental Adaptability\nPeople Also Read\nEnjoy $10 off Your Next Purchase\nJoin the XGIMI Community Today!","domain":"optical_engineering"}
{"url":"https://onyx-dark-wp.ecko.me/august-photography-trip/","date":"2022-01-27T09:31:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-05/segments/1642320305242.48/warc/CC-MAIN-20220127072916-20220127102916-00040.warc.gz","language_score":0.9384229779243469,"token_count":226,"dump":"CC-MAIN-2022-05","global_id":"webtext-fineweb__CC-MAIN-2022-05__0__87295935","lang":"en","text":"August Photography Trip\nDigital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film. The captured images are digitized and stored as a computer file ready for further digital processing, viewing, digital publishing or printing.\nUntil the advent of such technology, photographs were made by exposing light sensitive photographic film, and used chemical photographic processing to develop and stabilize the image. By contrast, digital photographs can be displayed, printed, stored, manipulated, transmitted, and archived using digital and computer techniques, without chemical processing.\nIn 1981, Sony unveiled the first consumer camera to use a charge-coupled device for imaging, eliminating the need for film: the Sony Mavica. While the Mavica saved images to disk, the images were displayed on television, and the camera was not fully digital. In 1991, Kodak unveiled the DCS 100, the first commercially available digital single lens reflex camera. Although its high cost precluded uses other than photojournalism and professional photography, commercial digital photography was born.","domain":"optical_engineering"}
{"url":"https://www.alzashop.com/nikon-coolpix-l31-red-charger-2x-aa-batteries-d4402304.htm","date":"2017-04-27T13:02:55Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-17/segments/1492917122167.63/warc/CC-MAIN-20170423031202-00440-ip-10-145-167-34.ec2.internal.warc.gz","language_score":0.8145161867141724,"token_count":391,"dump":"CC-MAIN-2017-17","global_id":"webtext-fineweb__CC-MAIN-2017-17__0__49113992","lang":"en","text":"|Price incl. VAT||€73.99|\n|Price excl. VAT||€61.15|\nThe camera is ideal for beginners because of its ease of use, the handy button layout and auto mode, which optimizes all settings for you.\nmin. 4,6 mm, max. 23 mm\nmin. f6,5, max. F3.2\n1 / 2.3 \"\nMaximum video resolution:\nHD (1280 × 720)\nFotoaparát je ideální pro nováčky díky svému jednoduchému použití, šikovnému rozmístění tlačítek a auto režimu, který optimalizuje veškerá nastavení za vás.\nSensor with 16 million pixels and captures high efficiency is always brilliant and beautifully crisp images with sharp detail.\nThanks to the 5x optical zoom and capture expressions on the faces of people who are far from you.\nNikon’s beginnings date back to 1917 in Japan. At first, the company mainly produced lenses - telescopes, binoculars, microscopes and other small, optical equipment. Soon the company expanded its portfolio, producing photographic lenses under the Nikkor brand.\nIn the field of cameras, particularly among professionals, Nikon quickly gained a reputation as a top manufacturer, which continues today. Its cameras were even included in the equipment of American spacecraft. Nikon designed and produced the legendary Nikon SP 1957, regarded by many as the best camera of all time.\nSpecifications can be changed without notice. Images are for illustrative purposes only. Retail Price (MSRP) means the manufacturer's/supplier's suggested retail price.\nLink to Manufacturer's Website: Enter link to the external review","domain":"optical_engineering"}
{"url":"https://www.focus-canning.com/lenses/canon-rangefinder-tls-cine-primes/","date":"2024-04-20T17:23:37Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817670.11/warc/CC-MAIN-20240420153103-20240420183103-00008.warc.gz","language_score":0.9580309987068176,"token_count":122,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__107599749","lang":"en","text":"The Canon Rangefinders are full frame 1960s lenses in modern cinema housings. The set is based around the legendary 50mm f/0.95 released in 1961. All the lenses in the set have their original 1960s single-layer coatings that produce beautiful low-contrast images, and golden flares. Despite their age, they are sharp, even wide open, with surprisingly low chromatic aberration, even for vintage, high-speed lenses. They also have a unique painterly bokeh, that gives images a texture and depth you can’t really get with modern lenses.","domain":"optical_engineering"}
{"url":"https://dlink.ee/ee/products/1/1591.html","date":"2021-04-22T15:19:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618039610090.97/warc/CC-MAIN-20210422130245-20210422160245-00532.warc.gz","language_score":0.7646832466125488,"token_count":496,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__155001305","lang":"en","text":"Bi-directional SFP Transceiver for Fast Ethernet fiber optic cable (Tx: 1550nm, Rx: 1310)Kust osta\nThe DEM-220T/220R Bidirectional Fast Ethernet SFP Fiber Transceivers are external transceivers designed for insertion in SFP (Small Form-Factor Pluggable) slots of network devices for transmission and reception of data signals on the fiber cables. These transceivers provide the 100BASE-BX operation and physical compactness to deliver the speed, reliable long-distance data transfer, and deployment flexibility that today’s fiber networks require.\nIdeal for Long Distance Application\nThe DEM-220T/220R transceivers can be used to connect together switches, servers and fiber modules on a campus or metropolitan area network (MAN). Providing up to 20 km of fiber cable distance, these highly integrated transceivers offer low jitter performance for extended optical link support without any degradation in performance.\nThe DEM-220T/220R transceivers combine transmitting and receiving signals onto one fiber strand using two wavelengths. These transceivers are used in pair. At one end, one transceiver uses one wavelength to transmit and a second wavelength to receive. At the other end, the other transceiver flips that relationship.\nThe DEM-220T/220R transceivers use standard simplex LC connectors for fiber cable connection. They conform to industry standards and are interoperable with certain D-Link switches. Hot-swap capability allows network administrators to plug or unplug them from the SFP slots without having to turn off the power of the connected device.\nThe DEM-220T/220R transceivers are packed in a Small Form Pluggable (SFP) metal housing to increase durability.\nIEEE 802.3ah 100BASE-BX\nSimplex LC connector\n9/125um Single-mode Fiber\nMaximum Fiber Cable Length:\nTransmit Power Range:\n-14 to -8dBm\nReceive Power Range:\n-32 to -3dBm\n55.5 x 13.4 x 28.11mm\nFCC Class B\nICES-003 Class B\nCE Class B\nVCCI Class B\nDEM-220T/10 Bi-directional SFP Transceiver for Fast Ethernet fiber optic cable (Tx: 1550nm, Rx: 1310)","domain":"optical_engineering"}
{"url":"https://c-ko.co.uk/products/recording-cameras-monitor-systems/page/2/","date":"2020-08-14T05:37:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-34/segments/1596439739177.25/warc/CC-MAIN-20200814040920-20200814070920-00168.warc.gz","language_score":0.8952994346618652,"token_count":110,"dump":"CC-MAIN-2020-34","global_id":"webtext-fineweb__CC-MAIN-2020-34__0__136473368","lang":"en","text":"Adjustable ball camera to replace factory brake light.\nAdjustable camera ball clips in and replaces OEM brake light.\n1080p front facing camera with Mini BMW connector to 4 pin aviation for easier application.\nFront facing camera with Mini BMW connector.\nVarious vehicle applications with RCA video connection and built in switch for tailgate.\n720p resolution with built in microphone and 4 pin aviation connection.\nAdjustable ball camera with built in microphone, replaces brake light.\nAdjustable ball camera with 4 pin aviation connection, replaces brake light.","domain":"optical_engineering"}
{"url":"https://www.rispa.fr/sa36-steel/laser_cutting_machine_for_carbon_4015.html","date":"2021-05-18T13:36:30Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-21/segments/1620243989637.86/warc/CC-MAIN-20210518125638-20210518155638-00605.warc.gz","language_score":0.8535484075546265,"token_count":2394,"dump":"CC-MAIN-2021-21","global_id":"webtext-fineweb__CC-MAIN-2021-21__0__163029343","lang":"en","text":"With the exploration and innovation of company people, gradually formed four major advantageous products: steel plate, steel pipe, stainless steel, special steel.\nThe Multiwave Hybrid laser beam enables the fiber laser to cut through the carbon reinforcing material, while the CO 2 laser removes the polymer matrix material. Laser cutting carbon fiber is beneficial because it reduces edge damage compared to the traditional method of mechanical cutting.Metalworking Laser Cutting Machines for sale | eBayMake Offer - LPKF 1120S Super Flex Laser Cutting Machine MicroLine Depaneling System. USA Warranty Support Service - 1500W Handheld Fiber Laser Metal Welding Machine. laser cutting machine for carbon Carbon Steel. Copper. Fiber. Wood. Voltage. see all. Wattage. see all. Model Year. see all. Brand. see all. Guaranteed Delivery. see all. No Preference. 1 Day Shipping.Laser Cutting and Laser Engraving Machines For Sale | AP LazerTHE MOST VERSATILE LASER ENGRAVER FOR YOUR NEEDS. When it comes to purchasing a laser engraver, you want a machine that will offer you the most versatility and profit opportunity. Take advantage of AP Lazers patented open architecture design that you wont find with any of\nCutting a 2mm low carbon steel plate with a fiber laser cutting machine in the power of 1200W, the cutting speed can reach 600cm/min; and if cutting a 5mm polypropylene resin plate, the cutting speed can reach 1200cm/min.carbon cutting machine- Aluminum/Al foil,plate/sheet laser cutting machine for carboncarbon cutting machine . If you have any questions or good suggestions on our products and site, or if you want to know more information about our products, please write them and send to us, we will contact you within one business day.Carbon steel,Stainless steel,Metal cuttingZhengzhou Baiwei CNC Machinery Shares Co., Ltd. Home; Products; Materials; Videos; Agent; About Us. Why choose\nZhengzhou Baiwei CNC Machinery Shares Co., Ltd. is manufacturer of fiber laser cutting machine,which specializes in collection technology research, development, manufacturing medium and small power laser processing equipment.10 common problems and solutions in laser cutting carbon laser cutting machine for carbonTodays theme is the high-frequency word in laser cutting-carbon steel. It is also widely used in industrial production and processing. We often say: under normal cutting conditions, the effect of cutting carbon steel (as shown below) should be no slag on metal edge, The cutting lines are in line.Video-Zhengzhou Baiwei CNC Machinery Shares Co., Ltd.Baiwei CNC Fiber Laser Cutter Cutting Square Tube (1) Baiwei CNC Fiber Laser Cutter Cutting Square Tube. Baiwei CNC Fiber Laser Cutting Machine. Baiwei Factory More > Baiwei Packing and Shipping Highlights. Let You Know More About Baiwei Laser. Indian Clients Visit Baiwei CNC Machinery Factory. Baiwei Workers Packed the Machines, Rain or Shine\nGWEIKE was founded in 2004, after years of development, become one of the largest manufacture for fiber laser cutting machine, engraving machine, marking machine etc. NEWS Concerned about GWEIKE , you can learn about the latest laser cutting machine maintenance knowledge, as well as equipment manufacturing industry information.Fiber Laser Cutting Machine on sales - Quality Fiber Laser laser cutting machine for carbonRaycus 1500W Laser Source CNC Fiber Laser Cutter Metal Laser Cutting Machine PENTA LASER launched the new model AWING series to the market this July. This series equipped with RAYCUS laser source, and the power laser cutting machine for carbonEKLASER - Fiber Cutting Machine,Laser Cutting Marking laser cutting machine for carbonEKLASER is a worldwide manufacturer and supplier of Laser cutting machine .EKLASER has wide range of products including Fiber Cutting Machine,Laser Engraving Cutting Machine,CNC Router,Laser marking machine,CNC Plasma.If want get Laser cutting machine pricepls send email to om\nTodays theme is the high-frequency word in laser cutting-carbon steel. It is also widely used in industrial production and processing. We often say: under normal cutting conditions, the effect of cutting carbon steel (as shown below) should be no slag on metal edge, The cutting lines are in line.Fiber Laser Metal Cutting,carbon steel laser cutter laser cutting machine for carbonFiber Laser Cutting Machine Price SF3015A Sheet Metal Fiber Laser Cutting Machine SF3015G3 Metal Plates and Pipes Exchange Table Lazer Cutting Machine Sheet Metal And Tubes Fiber Laser Cutting Machine SF3015M3 Metal Sheet and Tube Fiber Laser Cutter Small Metal Fiber Laser Cutting Machine SF1313G Handheld Laser Welding Machine Lift on Lift-off laser cutting machine for carbonSmall Size Mini Sheet Metal Fiber Laser Cutting Machine GF laser cutting machine for carbonSmall Size Mini Sheet Metal Fiber Laser Cutting Machine GF-6060 Enclosure design meets CE standard, processing is safe and reliable. High precision ball screw driving system and laser head ensure cutting accuracy. Drawer style tray makes easy collecting and cleaning for the scraps and small partlaser cutting machine for carbon\nTherefore, CO2 laser cutting technology has developed rapidly in China. Industrial application of CO2 laser cutting. The worlds first CO2 laser cutting machine was born in the 1970s. For over 30 years, due to the constant expansion of its application fields, CO2 laser cutting machine is Laser Machines And Laser Cutters - Alibaba, laser cutting machine for carbon80w 100w auto feeding 3d Co2 laser cutting machine engraving for fabric rubber plywood glass acrylic cnc laser cutting machine US $2100 - $2200 / SetLaser Cutting Basics : 15 Steps (with Pictures laser cutting machine for carbonCO2 Lasers: The laser is generated from electrically stimulated gas mixtures (mostly comprising of carbon dioxide). CO2 lasers are the most common types of laser cutters because they are low power, relatively inexpensive, efficient, and can both cut through and raster a wide variety of materials.\nWith no size or weight restrictions on your material, youll never turn down a job. Get ready to experience bigger profits with a more versatile laser engraver. Learn more about the wide selection of laser cutting and engraving machines for sale at AP Lazer.Fiber Laser Cutter Machine | Metal Laser Cutter | BOSS FC laser cutting machine for carbonThe BOSS FC-6012 PRO metal laser cutting machine is able to process many sheet metal types and can cut up to 6mm carbon steel. 2 Year Limited Warranty. Lifetime US Customer Tech Support.Used Laser Cutting Machines for sale. Amada equipment laser cutting machine for carbonTrumpf TruLaser 2530, New 2004 Manufacturer: Trumpf. This Trumpf TruLaser 2530 CO2 Laser is a pre-owned machine that will give any shop a cost-effective solution to their laser cutting processes. With the additional side load shuttle table, loading and unloading dlaser cutting machine for carbon\nFor cutting accuracy and efficiency, the fiber laser cutting machine stands head and shoulders above other cutting systems, such as CO2 lasers or plasma cutting machines. Fiber lasers are designed for energy efficiency. The laser beam is transmitted directly from the resonator through a fiber optic cable to the cutting head.MC-Series 150W CO - Full Spectrum LaserMost cost effective laser capable of cutting 1.2mm carbon/stainless steel (steel only, consider fiber lasers for other metals) Cuts up to 25mm (1 inch) thick acrylic plastic and 3/4 inch wood Capacitive Auto-height adjusting cutting head Cuts standard 4'x8' material sheetsLaser Genius Fiber cutting machine | Prima PowerLaser Genius is the laser machine which simplifies your work and improves your profit. Laser Genius has been developed to answer the most challenging expectations and combines Platinos flexibility with excellent dynamic performance and high levels of efficiency and accuracy, thanks to the innovative use of materials such as carbon fiber and synthetic granite.\nMix Cutting Co2 Laser Cutting Machine can be used to cut both metal and non-metal material, so we call it mix laser cutting. It is a special laser cutting machine for metal and non-metal. The laser cutting machine for metal's cutting thickness can reach 1-2mm stainless steel, 1-3mm carbon steel and mild steel, 20-30mm acrylic and plastic, 10-20mm wood, 20-30mm MDF.Laser Metal Cutting Machines | Laser Cutters | Boss LaserMetal Cutting Today, fiber laser cutting machines offer small and large companies the ability to affordably laser cut metal such as stainless, carbon steel, galvanized, and even aluminum materials.Small size fibre laser cutter SF1313G - SENFENG LEIMINGFull protection small laser cutting machine SF1313G is a small laser metal cutting machine,equipped with fiber laser device, the laser power is from 750w to 1.5kw. Fiber laser is the newest laser type, compared with traditional CO2, Y AG,Water jet and Plasma, which has obvious advantages including top quality beam ,high photoelectric efficiency, reliable and m aintenance free.\nFiber Laser Cutting Machine Price SF3015A Sheet Metal Fiber Laser Cutting Machine SF3015G3 Metal Plates and Pipes Exchange Table Lazer Cutting Machine Sheet Metal And Tubes Fiber Laser Cutting Machine SF3015M3 Metal Sheet and Tube Fiber Laser Cutter Small Metal Fiber Laser Cutting Machine SF1313G Handheld Laser Welding Machine Lift on Lift-off laser cutting machine for carbonLaser Cutting and Laser Engraving Machines For Sale | AP With no size or weight restrictions on your material, youll never turn down a job. Get ready to experience bigger profits with a more versatile laser engraver. Learn more about the wide selection of laser cutting and engraving machines for sale at AP Lazer.Industrial Laser Machine Manufacturer laser cutting machine for carbon - SENFENG LASERRecently, metal sheet laser cutting machine become more and more popular and has a high market value, it has been applied in many different industries, such as automobile industry, elevator manufacturing industry, furniture industry, etc. It can cut wood,\nView reliable Laser Cutting Machine manufacturers on Made-in-China, laser cutting machine for carbon. This category presents Fiber Laser Cutting Machine, Laser Cutter, from China Laser Cutting Machine suppliers to 4 ways to a better laser-cut edge - The FABRICATORWhen cutting stainless steel or carbon steel with nitrogen, the laser melts the steel and the nitrogen assist gas evacuates the molten material, leaving an oxide-free edge. However, if the laser cuts too fast, turns a sharp corner, or its focus is a little off, you risk losing the cut and producing unusable parts.Laser cutting of Carbon Fiber Composite materials laser cutting machine for carbonA 3.5 kW CO 2 slab laser was used to cut CFRP plates with a thickness of 3 mm. The influence on the cut quality of different processing parameters such as pulse frequency, pulse energy, duty cycle, type and pressure of the assist gas were studied.\nFiber Laser Cutting Machine. Oreelaser's high-speed fiber laser cutting machine for sale is an affordable, easy-to-use, and versatile tool that can help you begin a new startup venture or increase the profits of your well-established company. This type of fiber laser cutter is suitable for cutting stainless steel, carbon steel, alloy steel,laser cutting machine for carbon\nYou may also leave contact information, we will contact you as soon as possible!","domain":"optical_engineering"}
{"url":"https://oddlight.store/products/dmx-4-lens-rgb-colorful-laser-pattern-light","date":"2021-04-15T16:48:29Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-17/segments/1618038087714.38/warc/CC-MAIN-20210415160727-20210415190727-00342.warc.gz","language_score":0.7902464270591736,"token_count":281,"dump":"CC-MAIN-2021-17","global_id":"webtext-fineweb__CC-MAIN-2021-17__0__219918228","lang":"en","text":"This stage light features with red, blue and green la-ser lights, with high brightness, low power consumption and bright color. Perfect for club, KTV, DJ show, home party, ballroom, bands, wedding, etc.\nFeatures: This bright stage light brings you best visual atmosphere. Features with high brightness, low power consumption and bright color. 4 control modes: DMX512, master slave, sound activated and automatic. Colors change and flash to match various of scenes and ignite your passion. Perfect for club, DJ show, home party, ballroom, bands, wedding, etc.\nSpecifications: Plug Standard: US, UK, EU plug(optional) Input Power: AC 110-240V, 50/60Hz Power Consumption: 50W Light Source: Semiconductor laser generator Laser Power: 300mW-1W Laser Wavelength: Red 638nm 100mw*2, Green 532nm 30mw, Blue 450nm 100mw Channel: 11CH Control Mode: Auto, DMX512, Sound, Master/slave Size: 34.0 * 24 * 15cm / 13.38 * 9.44 * 5.90in Weight: 2000g / 4.41lb\nNote: Do not use it frequently under the humid atmosphere. Please do not look at the light directly, in case it might damage the eyes.","domain":"optical_engineering"}
{"url":"https://polarith.com/cranium/modules/laser/","date":"2024-04-20T14:55:24Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712296817650.14/warc/CC-MAIN-20240420122043-20240420152043-00363.warc.gz","language_score":0.8607250452041626,"token_count":289,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__76552324","lang":"en","text":"The 2D laser profile sensor is the ideal alternative to the camera for outdoor applications. It works with infrared light and is robust against interfering influences in the range of visible light, such as rain, fog, or snow. In its primary function, the laser measures load vibration for closed-loop control but can also detect characteristic geometries. In the port area, for example, hatch cover detection is realized in this way.\n- Certified for IP67\n- Operating temperatures from -30°C (86°F) to +50°C (122°F)\n- 60 kHz sampling rate for the laser scan with 4 multi-return echoes\n- 80m (262ft) range without reflector\n- 250m (820ft) range with reflector\n- Under 5mm (0,2inch) accuracy in 80m (262ft) without reflector\n- 90° opening angle (configurable)\n- Highly compatible Ethernet interface (UDP/IP)\n- Robust measurement through fusion with encoder data\n- Simple and guided commissioning via the Cranium web application\nChief Executive Officer\nSales Account Manager\nFor years we have realized the visions of our customers from a wide range of industries. We look forward to meeting you.","domain":"optical_engineering"}
{"url":"https://www.gaiaonline.com/journal/?mode=view&post_id=35016039&u=37242119","date":"2018-03-21T05:53:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647576.75/warc/CC-MAIN-20180321043531-20180321063531-00183.warc.gz","language_score":0.9585655927658081,"token_count":1059,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__57355506","lang":"en","text":"LED or the light emitting diode lamp refers to the kind of technology that is now rapidly evolving. It is because this becomes efficient in energy use while it is assumed to become extremely efficient in the coming years. There was a comprehensive analysis accomplished by researchers which states the technological advancement in a few years can help to people. These are the individuals who will use LWED environmental lighting.\nDuring that report, they focused on the environmental impact, including both energy and natural resources for disposing, operating, manufacturing and transporting light bulbs. The experts observed 15 distinct impacts and they evaluated the environmental footprints also, including other essential factors. Such factors referred are pollution on air, water and soil; increase in global warming; using land available to wildlife; and ability to generate waste.\nThe analysis found out that LEDs and CFLs were more environmental friendly than a common incandescent. It is because the incandescent light has been consuming higher amount of energy. Research and development reported that they expect further improvement on the efficiency of LED lamp. It rapidly reduced the amount of heat and the size of heat sink needed. They even emphasized on the fact that more improvements in the process of manufacturing as well as electronics can take LED environmental lighting into a more nature friendly method compared to CFLs within 5 years.\nSource Treasure Wireless Lighting\nAs people tend to be fully aware of the impact on the environment, most of them are already taking one step at a time to make sure that they can do all possible means to protect and save the natural resources. Certain individuals who were much interested in the usage of LED environmental lighting commercially (such as industrial, horticultural, and architectural applications) are glad to learn the environmental benefits provided by LED lights compared to other systems available.\nLEDs were made to offer a maintenance-free services for a longer period of time. It will potentially reduce the negative effects on the environment like what other lighting systems do. Another great benefit that LED lighting provides to the environment is that it consumes less amount of energy than the HID (high-intensity discharge) lights and incandescent lights. It can save 25 percent up to 80 percent less energy compared to the standard lighting system as well as other compact fluorescent lights. LED environmental lighting is providing great benefits than the standard expectation of the people and this is also one of the reasons why this is already acknowledged across the globe. Experts and other researchers are now uplifting the great value received from this lighting system and its positive impact to the environment.\nQuality LED Light LED Light Designing Articles click to read more\nLED Mood lighting has been an ideal thing for creating a relaxing and ambient lighting effect. Many systems of LED mood lights were designed as well as manufactured at the best standards across the globe. When you explore more of mood lighting or color changing, you are going to discover that there have been variations available to choose from. You may opt for seven-color systems that come in different features and specific uses so that you will receive maximum benefits from each of these things.\nSome LED mood lighting systems have been touched with digital technology to give them more tremendous ranges of colors and ability of displaying numerous colors than the typical mood lights. In general, such mood lights provide a seamless colors which sweep at speed and color ranges you chose. Some of the incredible options are pastels, white, and vivid colors that let you freeze the color indefinitely for a terrific LED mood light experience. Some systems can run a distance up to hundred meters of the color changeable LED tape or strip. These can be combined with some light source color changeable.\nPosts In Relation To Quality Light LED Light Design Small Data Regarding Wireless LED Fixtures\nLED mood lighting comes in numerous options to choose from and they have different features, functions, styles and cost ranges. In the case of aviation technology and service, LED mood light system has been generally developed to allow a full control of lighting functions in only a single touch. Through this form of technology, you have the chance to make distinct scenes during landing, flight and boarding to provide functionality and beauty at the same time.\nThe equipment or materials integrated is LED technology that allows numerous colors that are combined to achieve the desired intensity setting and brightness. You may also choose the LED mood lighting system with 6 memory positions. It will let you program more light sequences while on a flight. Through providing such kind of display, you have the ability to control the functions like fusion, gradual change, rotation, and speed of colors without any hassle at all.\nThe reconfiguration for LED mood lighting was made fast and easy. LED mood lighting system reconfiguration takes almost 30 seconds. At the same time, it is made compact and lightweight also. Today, you will find more LED mood lighting services that come with advanced technology and other special features to give maximum benefit and high level performance in certain actual settings.|In the present, there are already various LED mood lighting systems that are associated advanced technology and special features to achieve highest level of performance and maximum benefits during the actual setting.|Currently, you will find numerous LED mood light systems that are touched with special features and maximum benefits. This is to obtain the highest level of performance that is expected from the technology.\nManage Your Items","domain":"optical_engineering"}
{"url":"https://mazeled.in/about/","date":"2021-07-24T13:47:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150266.65/warc/CC-MAIN-20210724125655-20210724155655-00298.warc.gz","language_score":0.9260654449462891,"token_count":392,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__82516129","lang":"en","text":"This is WHO WE ARE\nMaze LED lighting, India’s leading led lighting company has a 25 year history of innovation and energy saving developments in the field of lighting.\n25 years of our time in this field are a testament to our incomparable product quality standards,\nour quick efficient delivery systems and our satisfied consumers all across the country.\nQuality components like Cree and Edison ensure that each Maze product gives 100% of the desired output.\nFrom product conception, to in house component manufacturing and testing, every Maze product goes through multiple stages of testing thus, ensuring outstanding quality.\nOur range of 750 plus products ensures that every project is fully catered to by a Maze product.\nBe it home, office, an institution, a resort or underwater, a Maze product is available.\nWe are powered by dynamic professional management, a network of dedicated dealers and technically qualifies sales team.\nMaze endeavors constantly to innovate and delight the consumer with a product far beyond their expectations.\nBacked by an equally efficient after sales and installation partner, we at Maze persevere to live up to our stage of India’s fastest growing lighting company.\nHow are LEDs used in Lighting\nLEDs are incorporated into bulbs and fixtures for general lighting applications.\nSmall in size, LEDs provide unique design opportunities.\nSome LED bulb solutions may physically resemble familiar light bulbs and better match the appearance of traditional light bulbs.\nSome LED light fixtures may have LEDs built in as a permanent light source.\nThere are also hybrid approaches where a non-traditional “bulb” or replaceable light source format is used and specially designed for a unique fixture.\nLEDs offer a tremendous opportunity for innovation in lighting form factors and fit a wider breadth of applications than traditional lighting technologies.\nThe useful life of LED lighting products is defined differently than that of other light sources, such as incandescent or compact fluorescent lighting (CFL).","domain":"optical_engineering"}
{"url":"https://www.structint.com/resources/webinars/latitude-an-introduction-to-the-new-technology/","date":"2020-11-28T07:12:26Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-50/segments/1606141195198.31/warc/CC-MAIN-20201128070431-20201128100431-00281.warc.gz","language_score":0.8708189129829407,"token_count":121,"dump":"CC-MAIN-2020-50","global_id":"webtext-fineweb__CC-MAIN-2020-50__0__84463958","lang":"en","text":"This live webinar will discuss LATITUDE™, a revolutionary non-mechanized position and orientation encoding system designed for use with nondestructive examination (NDE) equipment, enabling an operator to collect high-quality encoded data using a manual examination procedure. LATITUDE is a fast and compact alternative to cumbersome and complicated automated inspection equipment.\nFundamental information on the equipment and the underlying technology\nCandidate applications with an overview of advantages as compared to conventional approaches\nSee a live application of LATITUDE\nA Q&A session is included and will follow the presentation","domain":"optical_engineering"}
{"url":"https://www.pratidintime.com/laser-scientists-win-2018-nobel-physics-prize/","date":"2021-01-16T17:32:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703506832.21/warc/CC-MAIN-20210116165621-20210116195621-00034.warc.gz","language_score":0.9281123280525208,"token_count":230,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__266790020","lang":"en","text":"The 2018 Nobel Physics Prize has been awarded to Arthur Ashkin, and the other half jointly to Gerard Mourou and Donna Strickland “for their groundbreaking inventions in the field of laser physics.”\nAmerican Ashkin of Bell Laboratories in the United States won half of the prize while Frenchman Mourou, who also has U.S. citizenship, and Canadian Strickland shared the other half.\nStrickland, of the University of Waterloo, Canada, becomes only the third woman to win a Nobel prize for physics.\n“The inventions being honored this year have revolutionized laser physics,” the Royal Swedish Academy of Sciences said on awarding the nine million Swedish crown (USD 1 million) prize.\n“Advanced precision instruments are opening up unexplored areas of research and a multitude of industrial and medical applications,” it said in a statement.\nAshkin invented optical “tweezers” that could grab particles, atoms, viruses and other living cells while Mourou and Strickland separately created the shortest and most powerful laser pulses ever.\n(Featured image: The Straits Times)","domain":"optical_engineering"}
{"url":"https://www.tackleaustralia.com.au/tonic-shimmer-red-mirror-glass-lens-polarised-pola","date":"2021-07-24T18:16:25Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-31/segments/1627046150307.84/warc/CC-MAIN-20210724160723-20210724190723-00285.warc.gz","language_score":0.888600766658783,"token_count":903,"dump":"CC-MAIN-2021-31","global_id":"webtext-fineweb__CC-MAIN-2021-31__0__89184899","lang":"en","text":"TONIC SHIMMER RED Mirror GLASS LENS Polarised Polarized Fishing Sunglasses\nor 4 payments of $62.25 with Info\nTonic Eyewear Boutique Lenses\nPolarisation: With Tonic Eyewear's lenses anglers have polarisation and our custom made light filtration system that delivers unsurpassed clarity and colour enhancement. The Tonic Gen2 range features all new filter systems that now deliver enhanced light transmittance and colour separation.\nCrystalite Glass: Tonic is the only fishing sunglass in Australia using Crystalite Glass: the clearest glass lens currently available. Our Gen2 range now features the remarkable SLICELENS. At only 1.3mm and 60% lighter in weight than the industry norm, the SLICE is the thinnest and lightest polarised glass lens every made. So truer than ever, Tonic sunglasses can be worn all day and don’t feel heavy.\nDecentration: Tonic makes each lens decentred which is important for viewing true depth and true distance. Decentring eliminates prism or the feeling that you are losing footing when you are walking through streams and over rocks.\nAnti-Reflective Coating: Tonic has an anti -reflective coating applied to the back surface of the lens to reduce reflective glare or \"bounce back\" to the pupil. This is extremely important when sight fishing.\nTonic’s Four Colour Spectrum Filter: Our four colour integrated polarising filter system in the back of the lens: we have green which retains colour, yellow which gives high contrast when ambient light is low, brown and copper mix to give high definition.\nTonic’s Three Spectrum Filter: Our three colour integrated polarising filter system in the back of the lens is a unique feature of our grey lens: we have grey to give a “natural eye” viewing experience, green and aqua which give high definition and vibrant colour absorption.\nClik-Strap: Removable and adjustable safety strap.\nCustom Nose Bridge: Adjustable Nose Bridge comes with our RISE, TRAKKER & YOURANIUM styles.\nThe photochromic copper lens is a high contrast copper bronze. This lens is photochromic so it darkens or lightens depending on ambient light conditions. This lens has been developed to give the highest quality optics in fresh water and salt water conditions. The Photo Copper can be comfortably worn all day in all light conditions.\nThe Neon lens is the lightest fishing lens on the market in Australia today. It brightens things up like a neon light. It picks up the reds, blues, greens and yellows and has a very broad light spectrum which allows you to see very early in the morning or late in the evening.\nThe grey glass has three colours integrated into the lens: grey, green and aqua. Where most grey lenses tend to flatten colour out, the Tonic grey lens defines colour. That is a big difference between Tonic and any other grey lens on the market. Just like all the Tonic lenses, the clarity is unbeatable. Our Gen2 Grey is now photochromic, adding even more versatility.\nWith great clarity and optics our new mirrors look and feel fantastic. With copper based green and grey based red and silver, we have all water types covered. Tonics mirrors offer high definition glare reduction and they deliver high contrast in low light conditions and a very high result when fishing. The mirror itself has been applied inside the lens and so cannot be scratched off.\nTonic’s polycarbonate lens is a great entry level to high quality optics. Extremely lightweight and hardwearing, our polycarbonate lenses are a decentred injected mould lens with anti-reflective coating on the back surface and an anti-scratch coating applied to the front and back surface.\nAll Tonic Eyewear frames are made from TR90 optical grade material. They are all tough and lightweight. Our frames are designed to be comfortable and optimise block out of sunlight. Any non TR90 components are nickel or stainless steel to prevent rusting. Currently our range features high gloss black, matt black and high gloss tortoise shell designs.\n|Unit Of Measure||ea|\nBe The First To Review This Product!\nHelp other Mike's Fishing & Tackle users shop smarter by writing reviews for products you have purchased.","domain":"optical_engineering"}
{"url":"https://m.daily-bangladesh.com/english/Smartphone-for-blood-pressure-detection/27166","date":"2019-09-23T02:31:42Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-39/segments/1568514575860.37/warc/CC-MAIN-20190923022706-20190923044706-00006.warc.gz","language_score":0.9102450609207153,"token_count":561,"dump":"CC-MAIN-2019-39","global_id":"webtext-fineweb__CC-MAIN-2019-39__0__46472157","lang":"en","text":"Smartphone for blood pressure detection\nPublished: 17:34 17 August 2019\nMany new features are being added to the smartphone due to the advancement of technology. Many health-related features are also being added. Subsequently, a technology for smartphone ‘Transdermal Optical Imaging’ invented which is able to measure blood pressure.\nA research team of the University of Toronto, Canada, said that the technology will measure blood pressure by analyzing short video that contains facial expressions. Through this, 95 percent accurate result can get. A smartphone app is under developing based on technology.\nKang Lee, a Professor and the Research Chair of Developmental Neuroscience of the University of Toronto, is developing the smartphone app that can monitor blood pressure by analyzing a short selfie video.\nDigital sensors on a smartphone can detect the red light that’s reflected by hemoglobin, a blood cell protein, under the skin. This allows the camera to capture minuscule changes in circulation that can be used to predict blood pressure through machine-learning algorithms, Lee explains.\nLee and his colleagues measured the blood flow of 1,328 Canadian and Chinese adults by capturing two-minute videos using an iPhone equipped with transdermal optical imaging software.\nThe technology's high accuracy is within international standards for devices used to measure blood pressure, according to Lee.\n“If future studies could confirm this exciting result in hypertensive patients and with video camera measurements made during daily life, then obtaining blood pressure information with a click of a camera may become reality,” according to Ramakrishna Mukkamala, circulation imaging Editorial Author and Professor of Michigan State University.\nThe videos were captured in a certain light in a controlled environment in the laboratory. However, it is not yet clear how effective this technology will be in the outdoor environment or at home. Besides, the sample used in the test is not enough for this app.\n- e-Passport: Requirements and benefits\n- Seminar on cybersecurity held at MIST\n- Vivo ‘Made in Bangladesh’ soon\n- Rogue immune cells can infiltrate old brains\n- ‘Cyber 71’ to recover disable Facebook ID if feeds poor people\n- Heavy metals result of supernova explosion\n- Visiting Largest Fish Aquarium of Bangladesh\n- `No alternative to capacity building to tackle cyber attack`\n- Vivo S1 pre-booking starts\n- Australia plans to censor extremist online content\n- Most-detailed-ever; black hole mystery disclosure\n- GP, Robi bandwidth closed partly over dues\n- Google shuts down AdSense on Android, iOS for web\n- New Silex malware bricks 2000 plus IoT devices\n- Chandrayaan-2: India launches second Moon mission","domain":"optical_engineering"}
{"url":"http://ecolites.co.za/about-ecolites-led-lighting","date":"2019-07-18T19:19:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-30/segments/1563195525793.19/warc/CC-MAIN-20190718190635-20190718212635-00072.warc.gz","language_score":0.8951236009597778,"token_count":516,"dump":"CC-MAIN-2019-30","global_id":"webtext-fineweb__CC-MAIN-2019-30__0__152201225","lang":"en","text":"We are committed to providing you with top quality LED lighting products, at highly competitive prices.\nWe have designed our company and website around the central idea of making the switch to LED lighting for signage easy, simple, and fun.\nWe are innovators and addicted to new technology.\nWe are surrounded with the latest LED technology and we are committed to sharing it with you in fun and innovative ways.\n- LED RGB modules creating varying colour outputs,\n- LED Bulb replacements for incandescent bulbs,\n- LED Spot lamp high intensity.\n- LED Display lighting for POP displays etc.\n- LED High power flood lamps for light wall washing applications.\nWith the recent breakthroughs in LED technology and manufacturing techniques, LED lighting is now considered to have many advantages over neon and fluorescent lighting.\nLED BENEFITS OVER NEON & FLUORESCENT\n- Greater reliability of performance.\n- Longevity of the unit 50 -100,000 hours.\n- Huge savings on costly ongoing maintenance.\n- Dramatically reduced running costs, based on KW consumed.\n- Reduced Installation costs saving electrical trades costs.\n- Lower cost of associated equipment.\n- Fully programmable both cable and wireless.\n- Insignificant amount of heat generated with LEDs compared to heat generated by fluorescent ballast.\n- The costs of added power consumption to help cool a building being heated by fluorescent ballast, cannot be ignored.\n- The size, shape and configuration of the backlit area can restrict the use of fluorescent due to their size whereas LED modules can fit in almost anywhere.\n- In areas that are prone to moisture from water, washing, cleaning, humidity etc, 12volt LED is a much safer alternative to 240volt fluorescent lighting and certainly better than up to 15,000volt neon!\n- The options of different solid colours and RGB colour change via fading / animation is another benefit of LED over fluorescent & neon.\nLED is mainly used in these fields:\n- Indoor residential lighting.\n- Commercial and office building lighting.\n- Hard to reach areas like: high ceiling and central dome area.\n- 24-hours full time operation facilities like: store, mart, underground parking lot, elevator etc.\n- Subway and tunnel area.\n- High risk of fire area like: gas station and fuel depot.\n- Food production facilities and exhibition space.\n- Need to block harmful UV lights area: museums and art centre.\n- Areas that require long-term light exposure: schools and libraries.","domain":"optical_engineering"}
{"url":"https://creation.com/excellent-eye","date":"2023-11-29T02:33:52Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100047.66/warc/CC-MAIN-20231129010302-20231129040302-00233.warc.gz","language_score":0.9260507822036743,"token_count":900,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__52248175","lang":"en","text":"Better than any camera—the eye’s response to light\nWhen you emerge from a darkened room out into bright sunlight, your eye mechanically shrinks the pupil, cutting down the amount of light entering the eye. In fact, the eye works marvellously in a wide variety of light intensities, i.e. from hardly any light to very bright light.\nThe eye can detect a single photon of light, the faintest light possible. Despite some evolutionists claiming that the eye is badly designed, it is impossible to improve on this sensitivity! But the eye can also work with 10 billion photons; that is, its dynamic range is 10 billion to one.\nModern photographic film has a dynamic range of only about 1,000 to one. Also, one of us (JS) performed doctoral research using state-of-the-art light detectors. However, they were so delicate that they needed protection from more normal light intensities using filters that let in only a millionth of the light; otherwise, the detector would have been destroyed. Newer models have an automatic shut-off. Yet the eye easily adjusts to a far wider range without needing such a shut-off.1\nThe best known way the eye copes with varying light intensity is the iris. This is the coloured ring of the eye. In bright light, muscles contract and narrow the pupil, letting less light in. In dim light, other muscles widen the pupil.\nBut the biochemists Craig Montell and Seung-Jae Lee have discovered that microscopic machinery is involved, not just the large-scale motion of the iris. They examined fruit fly eyes, which have similar proteins and light detector cells to ours.\nThese cells have the light-detecting proteins in one end of the cell. But another protein, called arrestin, is moved around in the cell in response to light.\nIn dim light, arrestin is in a ‘holding area’. But in bright light, it is shuttled so that it can bind and ‘calm’ the light-detecting protein, thus protecting it.\nThe arrestin doesn’t just drift into place. Rather, it is moved quickly by a motor protein, myosin, along the ‘train tracks’ of the cell’s internal skeleton. The myosin and arrestin are ‘glued’ together with special sticky fats.2\nDr Montell explains, ‘For the cell to properly adapt to bright light, arrestin needs to move. If it doesn’t, the cell remains as sensitive to light as it was when it was dark.’3\nChance or design?\nFar from being a poor design, the eye’s dynamic range exceeds that of the best man-made photodetectors. And this latest research shows the intricate microscopic machinery behind it—a motor, glue, ‘calmer’ and internal ‘train tracks’.\nAll these features would need to be present and coordinated; otherwise, the eye would be blinded by bright light.4 Thus natural selection could not build this system up step-by-step, since each step by itself has no advantage over the previous step, until all steps are complete.\nThe Bible has a far more cogent explanation: ‘I am fearfully and wonderfully made’ (Psalm 139:14)—an explanation so obvious ‘that men are without excuse’ (Romans 1:20).\n- The well-known blink reflex, where our eyelids involuntarily close in the presence of a sudden increase of light intensity, is not strictly analogous, as it is a very temporary protective mechanism. But see also reference 4 below. Return to text.\n- Lee, S.-J. and Montell, C., Light-dependent translocation of visual arrestin regulated by the NINAC Myosin III, Neuron 43:95–103, 8 July 2004. Return to text.\n- Johns Hopkins Medicine, <www.hopkinsmedicine.org/Press_releases/2004/07_16_04.html>, 2 September 2004. Return to text.\n- This includes the aforementioned blink reflex, which may serve to buy sufficient time for these molecular protections described here to ‘kick in’. Return to text.","domain":"optical_engineering"}
{"url":"https://www.verticalhobby.com/kauppa/walkera-f420-drone-50min-lento-aika-yokameralla-p-7192.html","date":"2021-01-16T09:32:01Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-04/segments/1610703505861.1/warc/CC-MAIN-20210116074510-20210116104510-00540.warc.gz","language_score":0.8156237006187439,"token_count":953,"dump":"CC-MAIN-2021-04","global_id":"webtext-fineweb__CC-MAIN-2021-04__0__218348096","lang":"en","text":"- Lentävät siivet\n- Gyrot ja Vakautus\n- Multikopteri kitit\n- DJI varaosat\n- Hornet 460\n- CX-10, Habrok\n- Nighthawk 170/200/280 Kit\n- Nighthawk 280 Pro\n- Hornet Mini\n- Varaosat, KDS\n- Varaosat, BEAM\n- Varaosat, Walkera\n- Akut ja Laturit\n- FPV laitteet\n- Muut Tarvikkeet\nF420 Police drone, the fuselage adopts a lightweight integrated carbon fiber design to achieve faster installation, carrying, preparation to work, and take off at any time. With 3-axis stabilization small gimbal, support 4K high-definition camera, starlight night vision camera, infrared thermal imaging camera mounting.\nIt's harder and lighter，lightweight integrated carbon-fiber body design.\n- The carbon fiber shell weighs only 180g\n- 50 mins Flight time\nLightweight integrated carbon-fiber body design, strong shock resistance; with 4500mAh large- capacity smart battery, the maximum continuous flight time is up to 50 minutes.\n(Hovering flight at sea level and no wind)\nLow-light night-vision camera\nThe night-vision starlight camera has ultra-sensitive light sensors capable of detecting extremely faint light, so that clear images can be shot even in illuminance less than 0.001lux (the equivalent of the normal night), breaking the stereotype of “There are no such things as clear night-time photos”. Therefore, targets can be tracked more effectively at night and expose themselves in more detail.\n- Low Illuminance 0.1Lux—0.01Lux\n- Moonlight Illuminance0.01Lux—0.001Lux\n- Starlight Illuminance below 0.001Lux\nNote: lux is the measurement unit of illuminance.\nLow-light night vision camera vs normal camera\nEasy and quick to mount different cameras\nQuick removal of the cradle head, a simple step to install, convenient and time-saving, Mountable aerial photography hardware. Assist the photographer in clear capture. Clear picture, with different lenses for different applications\nLow-light night-vision camera\nSuitable for police reconnaissance, nighttime rescue. In low-light environments, it is able to shoot clear images of objects, suitable for nighttime low-light missions.\n4K HD camera\nIt is suitable for aerial photography in industry applications. The details recorded in 4K HD aerial photography are clear, and the high-definition images have been post-processed to make the task safer and more efficient.\nThermal imaging camera\nSuitable for power, search, and rescue sectors.Highly sensitive thermal imaging camera, designed for breaking the light and space limits, capable of capturing clear and precise thermal images wherever you are, anytime. It allows you to quickly search a large area or hard-to-reach devices, making the work more efficient, easier, and safer.\n6K HD camera with 25x digital zoom\nSuitable for industry aerial photography. The video clearly restores the shooting scene, records more details, makes the image smooth and exquisite, and presents the feeling like on the scene.\nIntelligent environment awareness\nThe forward infrared obstacle avoidance module and the downward infrared height fixing system can make the aircraft position more accurately, sense the surrounding flying obstacles, and reduce accidents caused by operational errors.\nSensing obstacle distance：12m\nIntegrated Ground Station with High Definition Screen (HD GCS Remote)\nThe highest brightness of the screen is up to 200cd/㎡, which is 2 times than ordinary mobile devices. It is still clearly visible under direct light, and the operation is safer and more reliable.\nIn response to the different needs of police applications, we have developed a dedicated F420 APP with a simple operation interface to achieve easy operation.\nA reliable flight control system\nUsing the latest control navigation algorithm, real-time data verification; no need to install shock absorption, giving the aircraft higher reliability, providing a stable and reliable flight experience for aerial photography!\n9KM Remote Image transmission (5KM for CE version)\nF420 adopts a 2.4G and 5.8G dual-frequency communication system, the maximum video transmission distance up to 9KM, Strong anti-interference ability, stable and reliable transmission.\n- Traffic Enforcement\n- Military exercises\n- Customs inspection\n- Power cable inspections","domain":"optical_engineering"}
{"url":"http://clubhistoricreserve.org/unsorted/projektor-dlp-3d-1622188.html","date":"2020-01-24T09:11:04Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250616186.38/warc/CC-MAIN-20200124070934-20200124095934-00501.warc.gz","language_score":0.8331425189971924,"token_count":1064,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__61367489","lang":"en","text":"See the laser video display article for more information. However, this high color precision does not mean that three-chip DLP projectors are capable of displaying the entire gamut of colors we can distinguish this is fundamentally impossible with any system composing colors by adding three constant base colors. This article's factual accuracy may be compromised due to out-of-date information. Hidden categories: Webarchive template wayback links All articles with unsourced statements Articles with unsourced statements from May All Wikipedia articles needing clarification Wikipedia articles needing clarification from June Articles with obsolete information from March All Wikipedia articles in need of updating Articles needing additional references from May All articles needing additional references. Three chip systems are found in higher-end home theater projectors, large venue projectors and DLP Cinema projection systems found in digital movie theaters. You can also follow us on FacebookTwitter and LinkedIn. Want stories like this in your inbox? Rapidly toggling the mirror between these two orientations essentially on and off produces grayscalescontrolled by the ratio of on-time to off-time.\nXAWH, DLP 3D, WXGA (x), ANSI, 20VGA, HDMI, repro 1x3W, Kg, LumiSense, ColorBoost 3D, ColorSafe II, životnost lampy h.\nXH, DLP 3D, WUXGA (x), ANSI, 10VGA, HDMI, HDMI(MHL) repro 1x3W, Kg, LumiSense+, ColorBoost 3D, ColorSafe II, životnost. Prodám Wanbo Mini přenosný projektor domácího kina 3D Full HD DLP video, prodej končí brzy. Objevte inspirativní cenově dostupné nákupy v Gearbestu!.\nDigital Light Processing DLP is a set of chipsets based on optical micro-electro-mechanical technology that uses a digital micromirror device.\nTip : It's always better to ceiling mount a projector because there are less chances of it being moved once setup. Retrieved 3 February These mirrors can be repositioned rapidly to reflect light either through the lens or onto a heat sink called a light dump in Barco terminology.\nA three-chip DLP projector uses a prism to split light from the lampand each primary color of light is then routed to its own DMD chip, then recombined and routed out through the lens. The number of mirrors corresponds to the resolution of the projected image often half as many mirrors as the advertised resolution due to wobulation. Brief visible separation of the colours can also be apparent when the viewer moves their eyes quickly across the projected image.\nAcer HST DLPprojektor 3D € ,99 Insight Netherlands\nHEALTH CENTRAL LLC\n|The DLP chip is synchronized with the rotating motion of the color wheel so that the green component is displayed on the DMD when the green section of the color wheel is in front of the lamp. This article's factual accuracy may be compromised due to out-of-date information.\nSome screens have gain — they reflect light better, thanks to shiny particles — and this helps in brighter rooms or if your projector is old or has low brightness.\nVideo: Projektor dlp 3d BenQ MS517 DLP 3D Projektor/Beamer +Brille+Leinwand (Unboxing/Review)\nGet instant notifications from Economic Times Allow Not now You can switch off notifications anytime using browser settings. Interior view of a single-chip DLP projector, showing the light path.\nAfter warmup, the ballast's output voltage drops to approximately 60 volts while keeping the relative [ clarify ] current high.\nProjektor DLP® Informace o bezpečnosti při použití 3D.\n. Používání 3D brýlí pro jakýkoli jiný účel (jako běžné brýle, sluneční brýle, ochranu očí apod.). Digital Light Processing (DLP) is a set of chipsets based on optical micro-electro- mechanical .\nDLP offers affordable 3D projection display from a single unit and can be used with both active and passive 3D solutions. Lighter weight than LCD .\nMain article: Digital micromirror device.\nXH Tech Specs Projectors Acer Middle East\nFour theaters installed digital projectors for the movie's release. It is expressed by two numbers separated by a colon.\nHowever, practically all lamp housings contain heat-resistant barriers in addition to those on the lamp unit itself to prevent the red-hot quartz fragments from leaving the area. Please help improve this article by adding citations to reliable sources. This doesn't mean that the lamp ceases to function exactly at that time, but it's an estimate.","domain":"optical_engineering"}
{"url":"https://honestlyfit.com/know-if-sunglasses-are-polarized/","date":"2023-10-03T07:23:44Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-40/segments/1695233511055.59/warc/CC-MAIN-20231003060619-20231003090619-00112.warc.gz","language_score":0.9397015571594238,"token_count":1247,"dump":"CC-MAIN-2023-40","global_id":"webtext-fineweb__CC-MAIN-2023-40__0__114392501","lang":"en","text":"Nowadays, polarized sunglasses are gaining popularity among adults. The primary reason behind it is that they look stunning and protect your eyes from harmful rays. You may want to know if the polarized sunglasses you have brought are real or fake. Some companies and brands try to trick the customers into buying fake ones. Now, you don’t have to worry. We will discuss some essential tips on how to check the same. You will effortlessly find the most suitable sunglasses for you after you gain some knowledge regarding the same.\nThere are many benefits to wearing polarized glasses. You can improve your vision and also decrease eye strain problems. We will take a closer look at other vital benefits later in this article. If you are planning to buy it, you should know everything to make a perfect choice. You will find various websites that provide reliable information about different kinds of eyewear. You can consider occhiali.blog to do complete the task of consuming information. It is one of the best websites to learn about all the popular sunglasses.\nSunglasses can change a person’s overall appearance, according to fashion experts. If you are a fashion lover, you must try wearing glasses to enhance your look. Due to this reason, people are more willing to invest in them for various reasons. They are also beneficial for people who travel a lot because they must protect their eyes from harmful Ultraviolet rays. However, it is only possible when your sunglasses’ lenses are polarized. You might be curious to know how you can identify them. So, let’s dive deeper into the same.\nWhat are polarized glasses?\nPolarized sunglasses are designed to provide people with better and clearer vision. Lenses decrease glare by adjusting the contrast, brightness, and color of objects you see in the sun. So, you will be able to obtain high-quality visual effects when using them. These glasses are perfect for protecting your eyes from harmful radiation. If you tend to suffer from eye fatigue, you should use these glasses to prevent it.\nHow do the lenses work?\nThe science behind this fantastic ability is complex to understand. But we will try to explain the same straightforwardly. As long as sunlight passes through the reflective surface, it will return horizontally in the same direction. This reflection is harmful to the eyes because it produces a temporary glare.\nPolarized lenses can absorb sunlight and block horizontal reflections. They only let vertical reflections pass through them. Therefore, you will not experience a sharp glare. Other lenses are not designed to give this kind of result. They might not be able to keep your eyes safe from it.\nAnother good thing about polarized lenses is that the brightness, contrast, and color will automatically get balanced while you wear the polarized glasses. Some people struggle with eye fatigue, headaches, and sensitivity to light when wearing any sunglasses. The use of polarized glasses can help eliminate various eye-related issues. As they are available in a variety of options, you can select the right one. Also, don’t forget to research well before deciding on a particular style of sunglasses.\nIs there any way to tell if your glasses have polarized lenses?\nIt might seem like an impossible task to find whether your lenses are polarized or not. However, it is not as you can consider the following methods to find\n- Use a computer to test the polarization: You have to use your computer or a laptop for this method. As the screens of these devices act like polarized lenses, they can help find the same. The first step is to put on the glasses and rotate them while you focus on the screen. Now, observe if any part is darkened. Once you discover any dark area, it means that your glasses are original.\n- Looking into the water: Another way to test for polarization is to look into the water. Even in the sun, these glasses can see things in the depths of the water. You can go to nearby waters for this test. If you can’t see the fish, the rocks in the lake while wearing them, it proves that your sunglasses have ordinary lenses. But you need to check if the lake is clean or not before proceeding with this method.\n- Use two pairs: You can ask your friends for another pair of sunglasses and start testing. For this, you have to face both the pairs towards each other. Then, observe the images through them carefully. Now, rotate one of them about 60 degrees. When you see any difference in the overlapping area, it means you have original polarized lenses.\n- Look at the label of the sunglasses: Almost every eyewear has a label of the brand. You need to check the information written on the label. If “Polarized” is mentioned on it, it means you have got polarized eyewear. Sometimes, the brand’s label is not present with the glasses. So, you can consider other techniques for the same.\n- Use reflective surfaces: In this method, you need to find a shiny reflective surface. Now, put on your glasses and look at the surface. If your vision is disturbed by reflected light, they are not polarized lenses and vice-versa.\nWhat are the benefits of wearing polarized eyewear?\n- A comfortable vision is possible: Polarized sunglasses are comfortable to use in the sun. They provide a clear vision through balanced light, contrast, and color. You can reduce eye-related issues like headaches and sensitivity to light. Many sports players also use them for a clear vision in sunlight.\n- Better eye protection: You may already know that UV rays are harmful to your eyes. Unlike standard lenses, its lenses are more potent in absorbing harmful light to protect the retina.\n- Helps to obtain visual clarity: You can use only polarized lenses to get optical clarity. With these sunglasses, the brightness, contrast, and color of objects are more balanced.\nThe Bottom Line\nIt indeed sounds pretty hard to find whether your sunglasses have polarized lenses or not. Still, there are some effective methods to discover the same. We hope this article helped you in understanding the techniques in detail.","domain":"optical_engineering"}
{"url":"https://www.liyang-arch.com/ap-6-cera","date":"2020-06-02T08:06:40Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590347423915.42/warc/CC-MAIN-20200602064854-20200602094854-00312.warc.gz","language_score":0.9381880164146423,"token_count":325,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__19056925","lang":"en","text":"Ceramic exhibition center, Tangshan, China\nacademic work, TJU/UCLA joint studio, solo, 2008\nFrosted glass is usually adopted in natural lighting of an exhibition space, through the frosted glass the visual contrast is greatly reduced and the view of objects behind the glass is blured. In this way the visitors can concentrate on the Exhibits. This design focus on how to “blur” the spacial background in the building. That means to minimize the contrast in the background space.\nThe profile of this building serves as the background of outdoor exhibition. In order to minimize the visual contrast, the profile of this architecture is designed as a mild curve which naturally rises from the ground, thus the outdoor background is “blured”. At the same time there are more outdoor exhibition areas as is shown in the height level diagram. Edges of walls in the exhibition space and direct light from outside cause contrast in sight. So the “Bluring” of indoor exhibition backgrounds consists of two parts: creating an “edgeless” space and adopting diffuse lighting. A continuous wall with wiping angles wraps the studio units and serves as an edgeless background of indoor exhibits.In order to avoid direct sun light and strong contrast in the sight, all the natural light in the underground gallery comes from above through the skylight and get into the visitors’ eyes after several times of reflection. Frosted glass is adopted in th skylight, changing direct light into diffuse light, providing a mild indoor light enviroment.","domain":"optical_engineering"}
{"url":"https://kili-technology.com/data-labeling/computer-vision/video-annotation/what-is-video-object-detection-definition-and-best-practices","date":"2024-03-04T15:09:10Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947476452.25/warc/CC-MAIN-20240304133241-20240304163241-00574.warc.gz","language_score":0.8990973234176636,"token_count":3708,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__64629013","lang":"en","text":"What is video object detection? How does it work?\nVideo Object Detection is a computer vision task that involves identifying and tracking objects of interest within a video sequence. Video object detection tasks incorporate temporal information to keep track of the objects across different video sequence frames. The primary objective here is to capture objects' spatial and temporal attributes and analyze the movements of different objects across the video.\nThere are several steps involved in video object detection, as follows:\nImage Object Detection: Object detection is performed on individual video frames.\nTemporal Information Tracking: Next, to maintain temporal information, techniques such as optical flow and motion estimation are used to predict the positions of the objects in the following frames based on previous frames.\nObject Association: The next task is associating objects detected in the current frame with those in the previous frames using object association algorithms.\nMotion Tracking: Once all the objects are associated, tracking algorithms are used to update the positions and velocities of each object as the video progresses. These algorithms must be robust to object occlusion and abrupt motion changes.\nThe final output of the system comprises positions and class labels of the detected objects across the video, which is often obtained after several post-processing steps, such as refining the object boundaries and handling the false positive detections.\nThe importance of video object detection\nThe advancement of machine learning and AI research over the past few years has paved the way to build efficient video object detection algorithms that enable AI systems to comprehend and interpret the dynamic visual information in videos. The ability to capture temporal information is crucial for several applications.\nFirstly, in the surveillance domain, video object detection helps identify and track suspicious intruders and activities in real time.\nIn autonomous vehicles, video object detection ensures safe navigation by recognizing and tracking vehicles, road signs, pedestrians, and other obstacles.\nSimilarly, in robotics, video object detection facilitates the perception of the surrounding environment, enabling robots to interact intelligently within complex spaces.\nIn healthcare, this technology assists in analyzing medical imaging data and identifying and tracking anomalies, tumors, and other critical features, thereby contributing to more accurate diagnostics and treatment planning.\nIn retail, video object detection helps understand consumer behavior, enabling tracking of customer movements and preferences, leading to improved marketing strategies and personalized customer experiences.\nOverall, video object detection algorithms significantly enhance the ability of machine learning and AI systems to interpret and respond to real-world visual information, thus empowering various industries with advanced capabilities for automation and decision-making.\nExamples of video object detection models\nVideo object detection has witnessed a remarkable transformation over the years, primarily driven by advancements in algorithms and techniques. This evolution began with traditional methods such as background subtraction and optical flow, which laid the groundwork for understanding and interpreting video data. As technology progressed, deep learning methods like Convolutional Neural Networks (CNNs) and Recurrent Neural Networks (RNNs) emerged, offering more sophisticated and accurate ways to detect and track objects in videos. This section delves into the key algorithms and techniques that have shaped the landscape of video object detection, exploring their principles, applications, and the challenges they address.\nTraditional video object detection algorithms\nBackground subtraction is a prevalent traditional method for performing video object detection. Its main objective is to focus on moving or non-stationary foreground objects by eliminating the stationary or slowly changing background. The main principle here is that the background of a scene remains relatively consistent over time, which makes it easy to distinguish objects of interest in the foreground.\nThe first step in the process is to construct a model that can accurately represent the background of the video using statistical methods such as averaging pixel values or using Gaussian mixture models. Next, each frame is analyzed against this model to check the pixel deviations between each frame and the background. Significantly differing pixels represent potentially moving objects; hence, they can be classified as foreground.\nSeveral challenges, such as different lighting conditions, shadows, occlusions, noisy backgrounds, or abrupt changing of background, can make this technique difficult to implement. To address these and other issues, it is always a good idea to use adaptive modeling and some post-processing techniques to segregate the foreground better. However, it is difficult to promise an accurate output with this technique; hence, it is often used as a preprocessing step in the current advanced computer vision applications.\nOptical flow is another traditional computer vision technique used to estimate the motion of objects in a video. This approach is based on the principle that the intensity of pixels remains constant across the frames. Therefore, analyzing the brightness patterns in consecutive frames allows tracking an object's motion in a scene. Technically, it calculates the displacement of pixels and generates a vector field for the motion of each pixel. Different techniques to compute the optical flow using mathematical models involve differential methods such as Lucas-Kanade and feature-based methods such as the Kanade-Lucas-Tomasi (KLT) tracker.\nOptical flow is a widespread technique with applications across tasks such as object tracking and motion analysis. Its key advantage lies in its ability to track the trajectory of pixel intensity across successive video frames, making it especially useful for understanding the motion dynamics of objects without needing to identify them. However, the technique does have limitations. In scenarios with frequent occlusions—where objects are partially or fully obstructed from view—or when the objects move rapidly, the optical flow can struggle to provide accurate estimations. This is also the case when the visual scene is highly complex or patterns change abruptly, which can confuse the algorithm as it relies on the consistency of patterns over time. Therefore, this method is often used as a foundation in advanced tracking algorithms.\nDeep learning models for video object detection\nConvolutional Neural Networks (CNNs)\nConvolutional Neural Networks are the foundational networks in deep learning for performing video object detection. They are proficient in extracting spatial features from individual frames and capturing temporal dependencies across subsequent frames. CNNs extract information through the convolution of kernels with the individual frames to identify objects. Temporal information is incorporated using techniques such as optical flow or RNNs, which analyze the motion of objects and track object trajectories across the video sequence. Therefore, using these two approaches, the algorithm detects and tracks objects. Usually, the detections are post-processed using techniques such as non-maximum suppression to refine the detections and improve tracking precision. Thus, CNNs play a pivotal role in applications of video object detection for understanding dynamic visual scenes.\nRecurrent Neural Networks (RNNs)\nRecurrent Neural Networks (RNNs) are instrumental in video object detection due to their ability to effectively capture temporal information in the video data. Since video comprises multiple frames, it is essential to model the sequential information and make sense of the object's movements over time. This is done with the help of memory cells (recurrent units) in the hidden layers, which remember the information from previous frames and use it to process the current frame. RNNs can also be combined with techniques such as attention mechanisms or long short-term memory cells to effectively capture the video's long-range dependencies and complex patterns. RNNs can be particularly useful for applications such as action recognition and combining them with models providing other capabilities they can be used for various applications such as surveillance and human-computer interaction.\nYou only look once (YOLO)\nYOLO and its variants up to YOLO-v8 are some of the most popular and state-of-the-art real-time object detection algorithms. They divide the input image into a grid and predict the bounding boxes and class probabilities for each grid cell. For video object detection, grid formations and predictions are performed on individual video frames; the neural network is applied to the entire image. Forming a grid enables the algorithm to detect multiple objects of varying scales and sizes easily.\nYOLO uses deep convolutional layers for feature extraction and employs techniques such as non-maximum suppression and anchor boxes to refine the detections and remove duplicate detections. YOLO comprises a unified architecture to capture spatial and temporal information; hence, it is suitable for video object detection. It is popular because of its fast processing time and real-time predictions, so it is widely used across domains such as autonomous driving and robotics.\nSingle shot multi-box detector (SSD)\nSSD is another popular deep-learning framework used for real-time object detection. It applies the neural network to individual video frames like previous algorithms. However, it already has predefined bounding boxes of varying ratios and scales that apply to the single frame to detect objects.\nSo, each bounding box of predefined aspect ratio and scale will have its class probabilities. This approach allows SSD to capture objects of varying sizes in a single pass, making it suitable for real-time detection. In addition to detection, SSD can also track objects across different frames, making it suitable for video object detection. Like other algorithms, SSD also integrates non-maximum suppression techniques for refining the detections to enhance accuracy.\nTo summarize, the ability of SSD to detect objects of varying shapes and sizes in a single pass makes it suitable for real-time use and a valuable tool in applications for video surveillance, action recognition, traffic management, and retail.\nThe progression from traditional methods to advanced deep learning approaches in video object detection reflects the continuous pursuit of more efficient, accurate, and versatile computer vision solutions. These technologies enhance our understanding of video content and open new possibilities for innovation across various industries.\nChallenges in Video Object Detection\nVideo Object Detection is a challenging task as it requires considering numerous factors and challenges that can arise from the complexity of the video data. Some of the critical challenges are mentioned below:\nReal-time processing: Obtaining real-time performance for video object detection is challenging as the computational speed depends on the complexity and resolution of the video, which is uncertain to determine beforehand.\nOcclusions: All the objects in the video may not be fully visible. They may often be occluded partially or fully by other objects or the environment, making it difficult to detect them accurately.\nMotion blur: Motion blur can be caused if the objects move too fast or the camera is unstable. This can create a loss of details, making it difficult for the algorithm to detect and track them.\nScale variation: Objects may not maintain the same scale and size throughout the video. It may change based on the object's proximity to the camera across all the frames. Hence, handling these variations is a challenging aspect of the algorithms.\nBackground clutter: The clutter or noise in the object's background can interfere with the detection process, specifically when the background exhibits similar features to the object. This can lead to false positives or missed detections.\nIllumination changes: The lighting conditions in terms of brightness, shadow, or glare can change across the video frames, affecting the appearance of the objects and making it challenging to maintain the detection accuracy.\nData association and tracking: The association and tracking of detected objects across multiple frames is challenging, significantly when the environmental conditions are changing and causing frequent occlusions or appearance changes.\nAddressing these challenges requires experimenting with different preprocessing, modeling, and post-processing techniques tailored to specific tasks.\nData collection and pre-processing for video object detection\nPart of addressing these challenges in video object detection starts with collecting and pre-processing data. When collecting and preprocessing data for video object detection, several key points should be considered to ensure the effectiveness and efficiency of the process:\nData Diversity: The data should be diverse; it should contain different scenarios and environments that pertain to the target application. Also, the greater the diversity, the better the generalizing capability of the model.\nAnnotation Consistency: Ensure consistent and accurate annotation across all frames and videos to provide reliable ground truth data for model training and evaluation.\nData Augmentation: Apply data augmentation techniques, such as flipping, rotation, or scaling, to increase the diversity and quantity of the training data, enhancing not only the model's robustness but also the generalization capability.\nVideo Quality: Collect high-quality videos with sufficient resolution to ensure that the objects of interest are visible and distinguishable, facilitating accurate annotation and model training.\nTemporal Sampling: Consider the appropriate frame rate and temporal sampling frequency for video data collection, ensuring that the captured frames provide sufficient temporal information for effective object detection and tracking.\nNoise Reduction: Implement preprocessing techniques, such as denoising and smoothing, to reduce noise and artifacts in the video data, enhancing the overall quality of the input data for the model.\nData Privacy and Ethics: Adhere to data privacy regulations and ethical guidelines when collecting and preprocessing video data, ensuring the data collection process is conducted responsibly and lawfully.\nBest data labeling practices for video object detection\nFast annotation of similar class objects in video\nWhile the data has been collected and preprocessed, the next step is to ensure that best annotation practices are followed. The more precise and accurate the annotations, the better the model output. Some of the must-follow best practices are:\nTemporal Consistency: Ensure that objects are consistently annotated across consecutive frames, accurately capturing their movements and trajectories throughout the video sequence.\nFrame-Level Labeling: Label each frame individually to ensure precise object localization and classification, facilitating accurate model training and evaluation.\nMultiple Object Instances: Annotate all instances of the same object class within a frame, especially in cases where multiple instances of an object class appear simultaneously.\nHandling Occlusions: Annotate partially occluded objects, indicating their visible portions within the bounding box to provide comprehensive information for the model.\nDynamic Object Changes: Adjust bounding boxes for objects that change shape or size dynamically within a video sequence, ensuring an accurate representation of their spatial dimensions over time.\nMotion Trajectory Annotation: Annotate moving objects' trajectories, marking their positions across frames to enable accurate tracking and analysis of object movements.\nObject Identification: Use unique identifiers or tags for individual objects within a video sequence to differentiate and track them accurately, ensuring distinct annotations for each object instance.\nFor efficient object detection, precise annotation is crucial. An advanced tool like Kili Technology's video annotation platform can facilitate this process. It has been redesigned with a more precise, more navigable timeline and adjustable propagation settings for annotations, essential for accurately tracking objects across frames.\nSmart tracking feature on Kili\nInterpolation and smart tracking features are also included to automatically annotate moving objects, saving time on manual annotation. While annotating, it's possible to adjust the span of annotated frames easily, providing flexibility and enhancing the quality of temporal annotations. These features support best practices by allowing detailed frame-by-frame analysis and adjustment, which is crucial for training accurate video object detection models.\nDive in to our new video annotation tool\nKili's data labeling platform just got a huge upgrade. Check it out and learn how we've just made video annotation much easier!\nQuality Assurance in Video Annotation\nConducting a quality assurance check in video annotation is extremely important to ensure the implemented pipeline is error-free, generates good accuracy, and has a reasonable annotation speed vs accuracy tradeoff. Additionally, quality assurance is needed to ensure that all the ethical points are considered and that the tool/algorithm is safe to be sent to production. Here are some of the significant points to consider for the quality assurance test:\nQuality Evaluation Metrics: Define and employ appropriate evaluation metrics, such as inter-annotator agreement, precision, recall, F1 score, and Intersection over Union, to assess the accuracy and consistency of annotations.\nAnnotation Time Benchmarking: Establish benchmarking standards for annotation time per frame or per video segment to gauge the efficiency and productivity of annotators.\nMonitoring of Annotation Speed: Continuously monitor and track the annotation speed of individual annotators and the overall annotation team, identifying variations and promptly addressing potential bottlenecks or inefficiencies.\nFeedback Integration: Integrate feedback mechanisms for annotators to report annotation speed and quality issues, fostering a culture of continuous improvement and learning within the annotation team.\nKili Technology provides an excellent feature for calculating consensus rules for object detection tasks for bounding boxes, polygons, and semantic segmentation. It considers each image as a set of pixels to be classified. The individual pixel can be classified into several non-exclusive categories or classes to represent different objects. The metric requires calculating all annotations' Intersection over the Union (IOU).\nCalculation metrics for bounding box object detection tasks on Kili\nIf two bounding boxes overlap perfectly, their metric is 100%, whereas two distinct non-overlapping shapes will correspond to a metric of 0%. This method is particularly beneficial because it ensures accuracy for shapes of all sizes.\nAdditionally, Kili technology provides a super easy and convenient way to view quality insights through its analytics functionality. The Quality Insights tab on the dashboard of Kili will provide insights regarding consensus and honeypot metrics. It provides per-class and per-labeler information and a total agreement score for consensus and honeypot. Furthermore, one can also start one’s review and use graphs and scores to target the relevant assets.\nIf neither consensus nor honeypot is set in the project, then the Quality Insights tab shows the review score per labeler. These review scores are calculated by comparing the original label with its reviewed version. This is an important metric to assess how well a team is performing.\nProductivity and quality review score for labelers\nTo sum up, video object detection is complex and requires appropriate tools to handle its intricacies. The process can be significantly streamlined by adopting best practices in data annotation and leveraging platforms such as Kili Technology's video annotation tool. This approach ensures that the resulting algorithms are practical, efficient, and ready to be deployed in real-world scenarios where accuracy is paramount.\nDon't hesitate to try out Kili's video annotation tool now and experience the convenience of easily annotating videos!","domain":"optical_engineering"}
{"url":"https://newsyaps.com/category/computer-and-technology/","date":"2022-12-04T13:26:41Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-49/segments/1669446710972.37/warc/CC-MAIN-20221204104311-20221204134311-00030.warc.gz","language_score":0.9332951307296753,"token_count":381,"dump":"CC-MAIN-2022-49","global_id":"webtext-fineweb__CC-MAIN-2022-49__0__9590089","lang":"en","text":"When it is about identifying the images, humans can easily recognize and differentiate between various features and objects. It is because the brain of human beings continuously and unconsciously frames the images, and they have the capacity to differentiate things effortlessly. It is challenging for people to realize when they are interrupting in the real world. Finding different things of the visual world and then differentiating effortlessly is not a challenge for humans. At the same time, our subconscious mind carries the process without any difficulties.\nOn Contra, the human views require carrying numerical values and patterns to distinguish the digital image videos. The critical feature of recognizing the image is entirely different from human beings. For instance, computer vision can identify the pedestrians and the vehicles moving on the road with the help of face recognition and image recognization. These images are categorized into various categories and through which the computer vision can filter the uploaded image.\nHow Does The Image Recognization Property Work?\nIn this digital era, everything can be possible where the digital image helps in representing the numerical value did. These values help in representing the associated data with the support of pixel image. It is very intense as there are different pixels, and on average, every single value helps in representing itself from the matrix format.\nAll the information available helps the image recognition system to identify the location of the image. Through the information, the developed system can identify the image and find the relationship and pattern and tell the image source. All this is part of the learning process, and after the completion of the entire process, the system can perform the test data and the validation.\nTherefore, there is no doubt that in today’s time; the increasing demand for autonomous vehicles is developing. Every year millions of money is spent on this industry because of which the demand for computer vision is stimulating. You can easily find more on my site and can gather information related to computer vision.","domain":"optical_engineering"}
{"url":"https://homelesspenthouse.com/kim-jones-dior-cd-link-sunglasses-for-2021","date":"2022-05-26T11:14:28Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2022-21/segments/1652662604794.68/warc/CC-MAIN-20220526100301-20220526130301-00087.warc.gz","language_score":0.9342315196990967,"token_count":363,"dump":"CC-MAIN-2022-21","global_id":"webtext-fineweb__CC-MAIN-2022-21__0__237338285","lang":"en","text":"Dior has unveiled its latest eyewear creation to celebrate its long lasting partnership with lens manufacturer Carl Zeiss Vision. In addition to taking on the title of Official Eyewear Provider and Spectacle Lens Partner of Dior, Carl Zeiss Vision is also responsible for manufacturing bespoke lenses for Christian Dior's (Paris:CDI.PA +0.28%) sunglasses. The two brands have worked together since 2017, and their first collaboration included the limited edition CD Link collection released in September 2018.\nThe new designs are a follow-up to the CD Link line and continue to celebrate Dior's creative director Kim Jones' signature aesthetic of bold colors, contrasting patterns and unparalleled detailing. The new CD Link collection contains eight styles available in a variety of bold colour hues, from yellow and blue to red, while continuing to feature the CD Link logo subtly imprinted on the temples.\nVarious materials have been used for these sunglasses pieces including nylon, acetate and metal for frames and Carl Zeiss Vision lenses that are also used in Dior's eyewear collections. The selection of lenses allows for a wide variety of optical effects and perform well in different lighting conditions, ranging from UV-protected to polarized sunglasses built for both men and women.\nThese limited edition frames are set to be released later this year with prices starting at $300 USD (£239 GBP). A portion of the proceeds will also be donated to the Association Nationale de Prévention du Suicide (ANPS) in France - an organisation which aims to prevent suicide through awareness, programmes and research.\nWith each new collection, Kim Jones collaborates with different brands under Christian Dior's umbrella such as Christal Van Marc (Paris:COU) for the crystal-embellished jewelery and leather accessories.","domain":"optical_engineering"}
{"url":"https://news.mb.com.ph/2019/09/17/new-cables-for-mrt-3-to-be-installed/","date":"2020-02-25T06:09:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-10/segments/1581875146033.50/warc/CC-MAIN-20200225045438-20200225075438-00467.warc.gz","language_score":0.847769558429718,"token_count":248,"dump":"CC-MAIN-2020-10","global_id":"webtext-fineweb__CC-MAIN-2020-10__0__185862048","lang":"en","text":"By Gabriela Baron\nThe Department of Transportation (DOTr) announced on Tuesday that it will be installing 20 reels of fiber optic cables for the Metro Rail Transit System Line 3 (MRT-3).\nThe cables will be used for signaling and communications systems.\n“Kung dati, copper wires lamang ang ginagamit para sa signaling system ng MRT-3, ngayon dahil sa kumprehensibong rehabilitasyon ng rail line, mapapalitan na ng mas modernong kagamitan ang system,” DOTr said in its official Facebook page.\n(Before, we just use copper wires in MRT-3 signaling system, but because of the comprehensive rehabilitation of the rail line, we are now replacing them with more modern equipment.)\nSumitomo-MHI-TESP, the new maintenance provider of MRT-3, targets to complete the cable installation this year.\nThe DOTr and MRT-3 managements are currently testing and commissioning the fiber optics to ensure the quality of the wiring.\nThe railway signaling systems aim to keep the trains safe by keeping them at a safe distance from each other.","domain":"optical_engineering"}
{"url":"http://www.inbahis166.com/en/case/49.html","date":"2024-04-25T13:25:23Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-18/segments/1712297295329.99/warc/CC-MAIN-20240425130216-20240425160216-00242.warc.gz","language_score":0.9103951454162598,"token_count":186,"dump":"CC-MAIN-2024-18","global_id":"webtext-fineweb__CC-MAIN-2024-18__0__19448490","lang":"en","text":"Laser has important applications in biology and medicine. In 1981, the World Health Organization listed laser medicine as a discipline of medicine. Laser technology is widely used from clinical diagnosis and treatment to basic medical research.\nThe application of laser in diagnosis is laser analysis instrument and laser tumor diagnostic analyzer, laser CT, laser holographic microscope and other laser diagnostic instruments; the application in treatment is laser knife, laser therapy machine, laser microbeam technology, endoscopic laser , Photodynamic therapy, etc. Laser can be used to treat eye diseases, anesthesia and blood tests, treat heart diseases and embolism of intravascular plaque, weld surgical wounds, treat tumors, etc.\nLaser medicine is widely used and has special biological effects. It will play an increasingly important role in the field of biomedicine. Laser technology has penetrated into various fields of life sciences and has become a powerful weapon for solving clinical treatment problems.","domain":"optical_engineering"}
{"url":"http://www.metrodata.co.uk/solutions/ethernet-extension/optical-time-domain-reflectometer-otdr-functionality.htm","date":"2018-03-19T06:24:07Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257646602.39/warc/CC-MAIN-20180319062143-20180319082143-00639.warc.gz","language_score":0.9110735058784485,"token_count":171,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__190528561","lang":"en","text":"The OTDR functionality underpinning this capability is based on the principle of measuring the time delay between transmission of a pulse of light from the optical transceiver and reception back at the transceiver of a corresponding pulse 'reflected' back from the discontinuity (i.e. the breakage or disconnection point). This is represented graphically in the diagram below.\nMetrodata Ltd. is the strong first EDD vendor to incorporate full commercial support for automated OTDR-based fault detection in this manner, and is pleased to be working in co-operation with Optical Zonu Corp. to bring not only comprehensive Ethernet service monitoring in terms of throughput, packet-loss, latency and jitter, but now also physical layer fibre fault detection and localisation, to its Telecoms Carrier and Ethernet Service Provider customers.\nNetworking The World Since 1989","domain":"optical_engineering"}
{"url":"https://computergraphics.stackexchange.com/questions/7526/how-is-a-projector-handled-in-a-ray-tracing-environment/7527","date":"2021-12-08T18:13:56Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964363520.30/warc/CC-MAIN-20211208175210-20211208205210-00463.warc.gz","language_score":0.9260420799255371,"token_count":307,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__189794537","lang":"en","text":"This is kind-of the same as ratchet freak's answer, but fleshed out a little more.\nThe usual way to handle this is with a special projector light type. It's like a spotlight, but (usually) with a square instead of circular fall-off. That is, when you cast a shadow ray to the light, you don't just measure a single angle (or radius) from the light's axis, you measure $(x, y)$ co-ordinates in the light's space. You divide these co-ordinates by the size of the projection (a parameter of the light just like the cone spotlight's angle parameter), and use the result for a texture look-up in the image you want to project.\nIf so, wouldn't any light ray bounce on that screen creating a mess?\nIf you're using a GI system, the high-frequency lighting detail that you get from a projector light will create a more challenging GI environment. You can control the badness by making the albedo of the surface you're projecting onto as small as you can get away with. If you don't need accurate GI results, you can use a proxy in the GI system instead of the real projector map. The proxy could have an aggressively blurred image, or even a normal spot-light whose colour is the average of the whole image. The blur technique is very applicable to a path tracer, while a single colour would be simplest for a radiosity or virtual lights implementation.","domain":"optical_engineering"}
{"url":"http://spectrosales.com/Computer%20Machine%20vision.htm","date":"2023-03-27T12:41:16Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-14/segments/1679296948632.20/warc/CC-MAIN-20230327123514-20230327153514-00202.warc.gz","language_score":0.8606064319610596,"token_count":389,"dump":"CC-MAIN-2023-14","global_id":"webtext-fineweb__CC-MAIN-2023-14__0__30030081","lang":"en","text":"\"Representing Only the Finest\"\nComputer/Machine Vision Components:\nTRUE COLOR! Foveon® X3 Technology - The Breakthrough in Color Imaging. New CMOS RGB Sensor with 2268 (H) x 1512 (V) active pixels and three stacked photodiodes (RGB) per pixel offers perfect color registration. Complete industrial quality cameras or Sensor Kits are available.\nMatrox Imaging is a leading designer of PC-based hardware and software for machine vision, image analysis, medical imaging, and video surveillance. Products include frame grabbers, vision processors, imaging platforms, smart cameras and development software.\n|<![if !vml]><![endif]>||Optec produces a wide range of SWIR, V-SWIR, X-RAY and VIS Lenses as well as multichannel cameras, LASER systems and SPACE qualified lens systems . The Optec SWIR lineup covers all the range of focal lengths, from the smallest 16mm wide-angles, to super-telephotos focal length of 1000mm. Optec is able to provide custom bayonets mounts upon customer request. Customer can select the version that best suits his needs on Optec’s Catalog or inquire for a special customized version that will meet their exact requirements.|\n|Xenics offers cameras, OEM modules and detector arrays covering the most active IR wavelength areas from 0.4 up to 14 micrometer. Supplied as line-scan as well as two-dimensional devices. Xenics also delivers custom detectors, infrared cameras or electro-optic instrumentation solutions|\nSend mail to\nwith questions or comments about this web site.\nCopyright © 2004 Spectro Associates, Inc.\nLast modified: March 19, 2014","domain":"optical_engineering"}
{"url":"http://pelishop.hr/peli%E2%84%A2-lights-zagreb/peli%E2%84%A2-professional-torches?product_id=167","date":"2020-01-18T18:09:12Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-05/segments/1579250593295.11/warc/CC-MAIN-20200118164132-20200118192132-00379.warc.gz","language_score":0.7579662203788757,"token_count":455,"dump":"CC-MAIN-2020-05","global_id":"webtext-fineweb__CC-MAIN-2020-05__0__169252958","lang":"en","text":"The most versatile pro-grade flashlight in the world, with magnet clip.\nThe 3410M (magnet version) is the ultimate compact work light. Molded from “glow in the dark” photoluminescent material, this light is easy to find even when it’s off. The 3410M is equipped with both a spot and flood LED for close-up as well as distance, so you can have wide area light in the immediate work area and still penetrate darkness hundreds of yards away. It can be activated to run one or both LEDs with 3 levels of brightness. The articulating head and built-in clip allows the light to be directed wherever it is needed, while a heavy duty magnet allows the light to be snapped to steel surfaces.\nThe Peli 3410M- a professional grade multi-task lighting tool that will help you get the job done- under any circumstances.\n\"Glow in the Dark\" Body\n3 modes: Spot, Flood or Both\nArticulating Light Head\nAttached clip with integrated magnet\n3 Light Levels (High, Medium, Low)\n|BODY:||Photo luminescent Polycarbonate (PC)|\n|LENS:||Clear Polycarbonate (PC)|\n|SHROUD:||Photo luminescent Polycarbonate (PC)|\n|CONTACT SPRING RETAINER:||Stainless Steel / Phosphore Bronze / Brass Nickel Plate|\n|CLIP:||Photo luminescent Polycarbonate (PC)|\n|LENGTH:||7.44\" (18.9 cm)|\n|WEIGHT WITH BATTERIES:||9.9 oz (281 gr)|\n|WEIGHT WITHOUT BATTERIES:||7.4 oz (210 gr)|\n|LAMP SECONDARY TYPE:||LED|\n|SWITCH TYPE:||Push Button|\n|LIGHT MODES:||High / Medium / Low|\n|CONFIGURATIONS:||3410M - Standard|\n3410M Right Angle Light\n- Brands PELI\n- Product Code: Peli 3410M - Right Angle Light\n- Availability: Pre-Order","domain":"optical_engineering"}
{"url":"http://www.sharpstar-optics.com/index.php/en/150F28/240.html","date":"2020-09-27T19:10:51Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-40/segments/1600401578485.67/warc/CC-MAIN-20200927183616-20200927213616-00260.warc.gz","language_score":0.9211627244949341,"token_count":337,"dump":"CC-MAIN-2020-40","global_id":"webtext-fineweb__CC-MAIN-2020-40__0__293228110","lang":"en","text":"The SharpStar 15028HNT is our latest product and development of super-fast focal ratio, hyperboloid and Newton reflecting telescope, which makes up the domestic gap in this field. Hyperboloid is much more complicated than traditional paraboloid, no matter in development, manufacture or detecting requirements. When compared to other similar products on the market, The SharpStar 15028HNT is in the leading position. Carbon fiber was used to create the lens barrel material, which is beautiful, durable and lightweight. It also provides best thermal stability by using Pyres glass.\nThe SharpStar 15028HNT provides a very good reflectivity (over 96%) thanks to the enhanced- Aluminium coating. The secondary cross is one-time molded, to ensure firm and hard to deform. The use of a precision 2.5\" R.P. focuser offers larger payload and a stronger hold, so that your focuser will not slip when using heavy-duty observation accessories or camera.\nThe SharpStar 15028HNT is equipped with all CNC aluminum parts and a novelty handle, which enables the lifting of its mechanical quality and appearance to a new level, so that the overall product can more closely meet the needs of astronomers.\nThe SharpStar 15028HNT features a three-piece image corrector that helps to achieve full-frame photography and excellent perimeter dimming control. The focal plane is 55 mm, plus an M48X0.75 thread at the end of the focuser, the enormous back focal distance provides ample space for any visual or photographic equipment.\nNGC2264 taken by Sharpstar 150 F2.8 Astrograph","domain":"optical_engineering"}
{"url":"http://search.updatedtrends.com/the-lcd-projector-technology-moves-forward/","date":"2018-03-18T01:46:17Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257645413.2/warc/CC-MAIN-20180318013134-20180318033134-00201.warc.gz","language_score":0.9631718993186951,"token_count":333,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__18168494","lang":"en","text":"The LCD projector is the modern day overhead projector. It is also used for displaying images. The LCD stands for liquid crystal display. It was invented in 1968 by a New Yorker, Gene Dolgoff. He was in college when he started the research. He was looking for a way to brighten the 3-CRT projectors that they had to use in those days. Then, he came up with the idea of depixelization and used liquid crystals to modulate the light. Since 2005 they have added the dynamic iris. Some of the fans think that this has improved contrast levels and now can compare them to the levels of the DLP.\nAn LCD projector does project light through a filter in order to create an image, just like other projectors. The early ones actually were used with the existing overhead projectors. The difference is that The LCD filter is malleable and can also be used to show videos and many more slides than a regular slide projector. There are three small LCD screens inside the projector. It forms three sides of the square, the forth side is open to the light. Red, blue and green are the colors of the screens. They beam through the screens and using mirrors, create an image.\nSome people call all modern projectors a LCD projector. Actually, there are two types, both digital. The first one is called the DLP or the Digital Light Processing and the second type is called LCD or The Liquid Crystal Display projector. The LCD’s are thought to have great color saturation with the brightness and contrast adjustable. Of course, the higher the resolution of the projector, the higher the cost.","domain":"optical_engineering"}
{"url":"http://www.tammywhitegalleries.com/light_part_2.html","date":"2017-08-17T11:46:59Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2017-34/segments/1502886103270.12/warc/CC-MAIN-20170817111816-20170817131816-00409.warc.gz","language_score":0.8838116526603699,"token_count":209,"dump":"CC-MAIN-2017-34","global_id":"webtext-fineweb__CC-MAIN-2017-34__0__207152851","lang":"en","text":"What You Should Know About Light And Your Artwork\nUV Protection For Your Artwork\nAll this talk about invisible UV rays would seem to spell certain doom for artwork, but thankfully that is not the case. A development in glass technology by Tru Vue, Inc. has brought about a glass product known as Conservation Series which effectively blocks out 97% of all harmful UV rays. The cost premium for using conservation glass is marginal, and the benefits of its use cannot be ignored.\nThe single most important step you can take to prevent harmful UV rays is to specify the use of conservation glass by Tru Vue.\nTru Vue conservation glass is available in clear and reflection control. Depending on the intensity of the light in the room where your art will be displayed, you may want to request Conservation Reflection Control. Reflection Control glass deflects \"hot spots\" and glare, so the beauty of the art can show through.\nThis Tip Courtesy of\n� 1999 Tru Vue, Inc.\nCheck Back For More Tips!","domain":"optical_engineering"}
{"url":"https://developer.artik.io/documentation/artik-05x/projects/smart-light.html","date":"2019-02-22T10:45:19Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247515149.92/warc/CC-MAIN-20190222094419-20190222120419-00119.warc.gz","language_score":0.8807170987129211,"token_count":1640,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__105265170","lang":"en","text":"Smart Light with ARTIK Cloud\nHere we provide technical details of using an ARTIK 055s module to implement a smart dimmable light, based on the Tizen RT RTOS. The smart light application can be used with the Samsung ARTIK mobile app to turn on, turn off, and adjust brightness of the light. A physical on-device button is also provided for a more traditional way of controlling light.\nBy using the Samsung ARTIK mobile app, users can easily on-board the smart light to ARTIK Cloud. Over-the-air (OTA) firmware update capability is included in the smart light application as well.\nThere are 5 pre-set brightness levels that can be used to control the LED brightness.\n|Control Action||Brightness Level (%)|\nThe above 5 brightness settings can be used both locally by pressing physical button (SW703 on starter kit), and remotely by selecting the particular action using mobile app through ARTIK Cloud.\nThere is an additional remote action, SetBrightness, that can be supported by using the mobile app. It can be used to remotely adjust LED brightness to any preferable brightness level between 0% to 100%.\nOnce the ARTIK 055s smart light device is powered up and connected to Wi-Fi and ARTIK Cloud through the built-in onboarding process, the smart LED light is ready to use.\nThe smart light Tizen RT application can be used as a reference to develop the connected dimmable LED lamp project for the ARTIK 05x module.\nARTIK 055s dev board\nLED (as light)\nResistor (100 Ω)\nA universal micro-USB cable to interface with your development machine\nA Linux cross-compilation development environment is required to develop applications using Tizen RT software. For more information about how to setting up Tizen RT development environment, refer to the advanced developers article. Here we use VirtualBox running on a Windows 7 PC.\n- The source code can be download from: https://github.com/SamsungARTIK/AppNotes-SmartLight\nConnect External Circuit\nBefore you can run the smart light application to experience of remotely control dimmable LED light, you will need to connect to external circuit. Connect the circuit as instructed in the picture below (or refer to the GitHub hardware article ) The ARTIK 055s starter kit pinout map can be found here.\nThe smart light application pre-programs the connection to the “XPWMTOUT_3” pin. We are using pulse width modulation (PWM) to drive the LED in this application, meaning that the LED is getting switched on and off. When the switching frequency is high enough, the brightness of the LED is integrated over time, and human eyes cannot tell the difference. We are setting the switching frequency of the LED to be 1000Hz in the code, turning the LED on for 0.1 millisecond and then off for another 0.9 millisecond.\nWhen powering an LED, it’s always a good practice to connect a resistor to limit the current though the LED and prevent its burnout. The LED cathode (-) pin is the pin right next to the flat spot of the LED, and connects to ground. The anode (+) is the other pin that connects to the resistor and XPWMTOUT_3.\nWhen Tizen RT development environment is set up, you can download or clone the smart light application from the GitHub repo. Follow the instructions to build the smart light Tizen RT application. When the application builds successfully, you will see library size information output at the console as shown.\nProgram Tizen RT binary\nAfter successfully building Tizen RT application, follow the instructions to flash the image to the target ARTIK 055s device.\nYou will see something like shown in the picture below. Each of the flash partitions is loaded to the target board. For more information about ARTIK 055s flash partitions refer to the memory map.\nRegister and log in to your ARTIK Cloud account.\nWhen creating a new device type under your ARTIK Cloud, you can just load the pre-defined manifest.json file for smart light device found here.\nAfter creating the device, the other thing you need to do is to browse to “Device Management” tab under your newly created device, then click “SET UP PROPERTIES” to enable server properties and device properties and allow LWM2M to run for your device.\nClick here for more information about device management and LWM2M.\nNow we are ready to run the smart light application. Connect the micro USB cable from ARTIK 055s to host PC. Start the terminal emulator program as instructed here. After pressing the reset button (SW700 located on the ARTIK 055s starter board), you should see the TASH shell CLI interface like shown in the screen capture below:\nNote that the commit hash under system information reflects a commit ID of the source repository. So the commit hash may have been changed by the time you build your smart light application. This is totally fine.\nAt the TASH shell prompt, type “help”. All of the currently available applications will be displayed. “smartlight” is one of them.\nThe “smartlight” application will start.\nNow, refer to the getting started tutorial to:\nDownload mobile app\nProvision Wi-Fi to your smart light device\nOnboard smart light device onto ARTIK Cloud\n|After successfully onboarding the smart light, from your mobile app, you should be able to see the smart light device appears under your ARTIK Cloud account.|\n|If you click on the smart light device you just added, all of the actions defined for the device manifest file will be shown. You can click on the action to change the state of the LED light remotely.|\n|All of the actions, except SetBrightness do not require additional setup. As mentioned in previous section, the brightness level can be set between 0% and 100%. To set the preferred brightness level, click on SetBrightness action from the mobile app device action list, then type in integer between 0 and 100 in the text field.|\nAlso note that the brightness of the LED light can also be changed anytime by pressing SW703.\nWhen SW703 is pressed, the terminal will also show messages to indicate current LED brightness level.\nButton press once would turn “ON” the LED light.\nButton press twice would change the LED light to “READING” mode\nButton press three times would change the LED light to “MOVIE” mode\nButton press four times would change the LED light to “SLEEP” mode\nButton press five times would change the LED light to “OFF” mode\nGenerate OTA Image\nThere are cases that you may want to update your application firmware to add more functionality or to fix bugs. The smart light application also has OTA capabilities built in to the code base. When you finish updating your firmware, make sure that you’ve also updated the firmware version. The firmware version is defined by the following line in the smart light header code\n#define ONBOARDING_VERSION \"126.96.36.199\"\nAfter that, build the application as mentioned in earlier section. Then, run the command below to generate a special binary for OTA:\nmake image ota\nNote that the resulting \"ota.bin\" can be found under /build/configs/$(BOARD_NAME)/bin\nThis ota.bin image can be uploaded into ARTIK Cloud device management for OTA update. When uploading new OTA update image, you need to choose “Edge Node” as the type of target device. Make sure you enter the same firmware version number as you programmed in the code.\nCheck the OTA article for more details about OTA.","domain":"optical_engineering"}
{"url":"http://www.satnetcom.net.id/preview-radar-proximity-awareness/implementation-on-unit/haul-truck","date":"2020-06-06T19:30:27Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2020-24/segments/1590348519531.94/warc/CC-MAIN-20200606190934-20200606220934-00231.warc.gz","language_score":0.7813994288444519,"token_count":143,"dump":"CC-MAIN-2020-24","global_id":"webtext-fineweb__CC-MAIN-2020-24__0__211195960","lang":"en","text":"Preview on Haul Truck\nWe’ve Got Your Blind Spot Covered\nThe in-cab display provides the driver with an audible and visual alert when an object is in the detection zone. As the object moves closer to the sensor, the audible alert increases and more LEDs light up on the display.\nAn Xtreme PreView® sensor is mounted on the front, rear, right side and left side. This covers the most dangerous blind spots.\nReplace in-cab LED display with PreView Plus camera and monitor system. Superimposes object detection indicators directly on to monitor and will support up to 4 cameras.\n- Reduce Blind Spot Accidents\n- Actively Detect Objects","domain":"optical_engineering"}
{"url":"http://www.kellysky.net/systems.htm","date":"2023-12-06T07:34:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2023-50/segments/1700679100583.31/warc/CC-MAIN-20231206063543-20231206093543-00041.warc.gz","language_score":0.9057300686836243,"token_count":1888,"dump":"CC-MAIN-2023-50","global_id":"webtext-fineweb__CC-MAIN-2023-50__0__40345687","lang":"en","text":"SYSTEMS, ISSUES, AND PROCEDURES\n1. The CCD Camera and Its Attachment to the Telescope\nThe number and quality of CCD cameras available to the amateur astronomer grows daily. From the person willing to spend thousands of dollars to the person with only a few hundred dollars and a willingness to build a camera, there are CCD systems to match both the pocketbook and imaging needs.\nCCD cameras have inherent characteristics that should be briefly noted. Each CCD chip and its attendant electronics have varying degrees of noise. The less noise the better the CCD will be at imaging faint objects. The most prevalent sources of noise are readout noise and dark current (thermal) noise. (See the discussion of CCD signal and noise in Section 4.f. Achieving Good SNR)\nDark current refers to the build up of signal on the CCD chip -- even when no light is present -- due to the simple presence of heat. The noise component of dark current is significant relative to the faintness of most astronomical objects. The amount of dark current drops off quickly with lower temperatures. By cooling a CCD chip, the dark current can be reduced to an acceptable level and its effects can further be mitigated in the calibration process. Good astronomical CCDs have cooling systems that can lower chip temperatures by 35 degrees C or more.\nReadout noise exists because CCD camera electronics cannot determine and portray with perfect accuracy how many electron volts are stored in each pixel from impinging photons. There is sampling error which introduces noise into the system. Some cameras have \"double correlated sampling\" which in effect samples each pixel twice to measure as accurately as possible how many electron volts are resident in each pixel. Once the analog voltage from each pixel is determined it can be digitized, but low-level random variations in the digital output further contribute to readout noise.\nThe analog voltage in each pixel is digitized through the camera's analog-to-digital (A/D) conversion electronics. CCD cameras convert the analog signal into digital increments so that the image can be represented by pixel grayscale values. The number of increments your CCD divides the analog signal into determines the precision of its representation of the imaged object. Good cameras have at least 12-bit A/D conversion (4096 levels) with most having 16-bit A/D conversion (65535 levels).\nMany thousands of words could be inserted here on system trade-off parameters: cost, readout noise, quantum efficiency across the imaging spectrum, system gain and dynamic range, system cooling method and efficiency, shuttering, etc.; but once the imager has decided on a camera and is ready to put it to use, these parameters are locked in and only a few items are continually important to take into consideration when planning an imaging session. These are:\na. Pixel size and chip size. When taken into account with the focal length of the optical system, these measurements are key to establishing the FOV that will be imaged and the resolution (i.e., level of fine detail) that the image will provide. As stated in the Glossary, the approximate width of the FOV in arcseconds can be calculated by dividing the width of the CCD chip in microns by the focal length of the optical system in millimeters and multiplying the result by 206. Similarly the FOV, or angular resolution, of each pixel can be determined using the same equation, substituting the width of a single pixel for the width of the entire CCD chip. To achieve images wherein no information is lost due to insufficient resolution of the data available from the optical system, each pixel should be no larger than 50% of the size of the expected image point spread function (PSF -- see the Glossary). The imager should try to match focal length to pixel size and chip size to plan for the appropriate system resolution and appropriate FOV for the object(s) being imaged. Sky seeing conditions and other factors will often mitigate the imager's best plans, but establishing appropriate imaging system parameters for your camera will lead to best long-term results. See http://www.nto.org/whatusee_en.html for a Windows-based program to help calculate the FOV for an imaging system.\nb. Chip location at the focal plane. When first using a camera, the imager may find that reaching focus is difficult due to uncertainty about the location of the optical system's focal plane or the recessed location of the chip in the camera. The chip must be positioned at the focal plane to bring the camera into focus. One easy way to determine the location of the focal plane is to mark the location of an eyepiece's focal plane (same as the field stop) on the outside of the eyepiece and then bring an eyepiece into focus on a star. The mark on the outside of the eyepiece will then match the position of the telescope's focal plane. Coupling this knowledge with knowledge of the distance that the chip is recessed inside the camera housing should allow the imager to determine whether the CCD system can be brought into focus.\nc. Vignetting. It is very important to minimize vignetting of the CCD chip. In order for the all portions of the chip to be illuminated by the full diameter of the telescope's primary optic, the secondary mirror and other optical elements must be of sufficient size and adequate design, and any apertures created by the focuser mechanism or system baffles must be wide enough to not restrict the optical path. Any vignetting will result in noticeable degradation of signal values in the outer regions of the chip. The darkening effect on sky background signal in peripheral regions can be reversed by flat-fielding, but lost SNR cannot be restored. Perhaps the easiest way to inspect for potential vignetting is to cut an aperture in a piece of paper the size and shape of the chip, then place this aperture at the focal plane during the daytime and look through it with the eye directly behind the aperture. Look at the primary optic to see if its entire surface can be seen through all portions of the aperture. If it can there should be no vignetting; but if it is partly obscured, then it should be readily apparent which part of the interceding optical or mechanical structure needs to be changed. See http://home.att.net/~dale.keller/atm/newtonians/newtsoft/newtsoft.htm for a Windows-based program to help determine vignetting of a Newtonian optical system.\nd. Using a turret or slide or flip-mirror to center objects visually. One of the more difficult imaging tasks can be locating and accurately centering an object in the CCD's FOV. Unless you are fortunate enough to have a perfectly aligned system with extremely accurate automatic pointing, objects must be located within the FOV by manual means (i.e., star hopping and use of low-power finders). Even amateurs accustomed to manual visual work will be challenged and often frustrated by this requirement unless some means is adopted for centering objects visually within the main scope's eyepiece FOV before replacing the eyepiece with the CCD camera. This is where a two-position turret or slide mechanism or a flip-mirror assembly to divert the optical path to a fixed eyepiece comes in handy. Having to exchange an eyepiece and a camera in the same focuser tube requires constant rechecking of focus and creates additional flat-fielding requirements since camera orientation is unavoidably changed. Using a two-position rotating turret or slide assembly or a flip-mirror assembly that has focuser tubes for both an eyepiece and the CCD camera solves the problem by allowing visual centering before moving the fixed-orientation CCD into the eye's position. In addition, the finding/centering eyepiece can be parfocalized with the CCD chip so that changes in telescope focus can be accommodated rapidly by visual monitoring and adjustment as the night progresses. Please go to http://www.ghg.net/cshaw/slide.htm to see more about turret and slide designs. See http://members.aol.com/STRG8ZR/homeyer/homeyer.html for Andy Homeyer's flip mirror.\ne. Filter wheels/slides. If you plan to do filtered imaging to concentrate on specific wavelengths or produce color images, attaching a rotating or sliding filter-holder mechanism in front of the camera provides a great advantage. Without such a device, filters must be separately and manually inserted into the optical path, requiring careful refocusing and unavoidably changing the camera's flat-field orientation. Filters carefully selected to have the same thickness will be parfocal in a filter wheel or slide, allowing quick filter changes without refocusing. Please see http://www.ghg.net/cshaw/filter.htm to see Andy Saulietis' filter wheel design. See http://members.aol.com/STRG8ZR/homeyer/homeyer.html for Andy Homeyer's filter wheel and other accessories.","domain":"optical_engineering"}
{"url":"http://ucf.uprm.edu/dynamic-light-scatteringdls-diffusivity-calculations/","date":"2019-10-14T21:05:49Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-43/segments/1570986655310.17/warc/CC-MAIN-20191014200522-20191014224022-00065.warc.gz","language_score":0.8724064826965332,"token_count":397,"dump":"CC-MAIN-2019-43","global_id":"webtext-fineweb__CC-MAIN-2019-43__0__95087648","lang":"en","text":"Dynamic light scattering, also known as quasi elastic light scattering (Quels) and photon correlation spectroscopy (PCS), measures the laser light that is scattered from dissolved macromolecules or suspended particles. Due to the Brownian motion of the molecules and particles in solution fluctuations of the scattering intensity can be observed.\nAccording to the semiclassical light scattering theory when light impinges on matter, the electric field of the light induces an oscillating polarization of electrons in the molecules. The molecules then serve as secondary source of light and subsequently radiate (scatter) light. The frequency shifts, the angular distribution, the polarization, and the intensity of the scatter light are determined by the size, shape and molecular interactions in the scattering material.\nDLS measures the scattered light of a sample in very short time periods and correlates the data. Due to the fact that large molecules or particles move slower than small molecules a defined correlation function results. From the correlation function the diffusion coefficient (D) of the molecules can be calculated by fitting the data.By fitting the points of autocorrelation to the function G(t), the diffusion coefficient can be measured and related to the equivalent sphere of diameter d using the Stokes – Einstein equation:\nn = diluent viscosity (water = 8.94*10-4 kg/(ms)\nT = Temperature (K) (room temp = 298 K)\nD = diffusion coefficient (in m2/s)\nkB = Boltzmann constant (1.3807*10-23 J/K)\nd = sphere diameter (m)\nThe DLS technique is especially impressive because there is no sample information needed. Only the solvent viscosity and the refractive index of the solvent must be known. For nanoparticles the density of the particles might be important. The refractive index increment, an important parameter in static light scattering experiments, is not involved in the calculation of Rh.","domain":"optical_engineering"}
{"url":"https://english.signal.co.jp/products/platform/sensing/","date":"2024-02-27T10:11:33Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2024-10/segments/1707947474674.35/warc/CC-MAIN-20240227085429-20240227115429-00048.warc.gz","language_score":0.8872960805892944,"token_count":475,"dump":"CC-MAIN-2024-10","global_id":"webtext-fineweb__CC-MAIN-2024-10__0__134782924","lang":"en","text":"We will realize safety measures with excellent cost performance as we aim to create safe and comfortable platforms.\nThis sophisticated surveillance system uses a compact outdoor 3D laser ranging image sensor developed in-house to detect passengers approaching the edge of the platform. When the sensor detects danger, it issues a warning and prevents accidents such as accidental contact with a train car or falling.\nFeatures of Platform Sensing System\nSensors that are resistant to sunlight are installed on the top or side of the platform to ensure the safety of the platform.\nWhen detecting dangers such as accidental contact, passengers standing at a platform edge and accidental falls that are likely to occur every day, the system issues warnings and alarms with built-in speakers and LED line lights. It also operates simultaneously with an emergency stop device and reports to station staff.\nThe sensors can be installed facing down or sideways according to the station environment.\n3D Laser Ranging Image Sensor\nOur proprietary Infini Soleil 3D laser ranging image sensor is a sensor that is resistant to ambient light, perfectly designed for outdoor-use, and can recognize 3D shapes.\nThe sensor system uses laser light to detect people and objects within an area.\nEmploying an active system with an internal near-infrared pulse laser, it can be used at all hours of the day and night. With a unique optical structure developed by Nippon Signal, Infini Soleil exhibits excellent robustness in sensing obstacles and processing noise, making it possible to reliably detect obstacles even in diverse outdoor environments.\n- Reliably recognizes obstacles based on 3D information.\n- Employs a long-life MEMS mirror (ECOSCAN) as an optical scanner.\n- Resistant to ambient light (sunlight) and can be used at all hours of the day and night.\n- Unlike a camera, it does not capture an image of the actual object, and therefore poses no privacy issues.\n- “Class 1” laser safety standard (causing no harm to human eyes).\nLED Line Light\nShines a warning light when detecting a person standing at a platform edge.\nWhen a passenger approaches the warning line at the edge of the platform, the high-brightness LED line light emits light. The warning line emits light to give a warning that tells the passenger not to go any further.","domain":"optical_engineering"}
{"url":"https://shingi.jst.go.jp/past_abst/abst/2012/akita/program.html","date":"2018-03-20T21:21:20Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2018-13/segments/1521257647545.54/warc/CC-MAIN-20180320205242-20180320225242-00227.warc.gz","language_score":0.939782977104187,"token_count":176,"dump":"CC-MAIN-2018-13","global_id":"webtext-fineweb__CC-MAIN-2018-13__0__68330892","lang":"en","text":"This method can detect a blank space in an image consisting of some frames and then segments the image into each frame surrounded by a blank space. Since the segmentation is done in a hierarchical way,the sequence can be inferred in which each frame is looked at.The method can also segment an image into frames, even if a frame is not surrounded by a straight line.\nThe near-infrared spectroscopy can immediately analyze material composition. To simply measure a body fat percentage of small animals, non-invasive method by using this near-infrared spectroscopy has been established.\nThe usage of traditional molecular sieves are limited, because an exact control of the pore size is very difficult. On the other hand, the pore entrance size of a mesoporous silica covered with temperature-responsive polymer can be precisely controlled by changing the water temperature.","domain":"optical_engineering"}
{"url":"https://optinum.co.za/smart-mining-manufacturing-automated-vision-based-inspection-and-defect-detection-for-industrial-applications/","date":"2021-12-09T12:47:18Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2021-49/segments/1637964364169.99/warc/CC-MAIN-20211209122503-20211209152503-00543.warc.gz","language_score":0.9259892106056213,"token_count":139,"dump":"CC-MAIN-2021-49","global_id":"webtext-fineweb__CC-MAIN-2021-49__0__154816505","lang":"en","text":"Vision-based detection and tracking algorithms have evolved significantly over the past ten years. Where features used to be engineered, they are now automatically determined with deep learning. Where tracking algorithms worked well with a few objects, they now perform well with many objects.\nAutomated camera-based inspection algorithms are often used in the mining and manufacturing industry to detect failures, quality defects and hazardous conditions. In this 30-minute webinar we will present a practical example of an automated inspection algorithm.\nWhat Can I Do Next?\n- Watch the webinar\n- Request a trial.\n- Find out more from the team.\n- Visit our Smart Mining & Manufacturing Focus Area page to learn more.","domain":"optical_engineering"}
{"url":"http://soundwidgets.blogspot.com/2008/09/how-to-make-cheap-multitouch-pad.html","date":"2019-02-15T19:15:05Z","file_path":"s3://commoncrawl/crawl-data/CC-MAIN-2019-09/segments/1550247479101.30/warc/CC-MAIN-20190215183319-20190215205319-00077.warc.gz","language_score":0.9158489108085632,"token_count":540,"dump":"CC-MAIN-2019-09","global_id":"webtext-fineweb__CC-MAIN-2019-09__0__4864597","lang":"en","text":"The above demo shows 1/2 of the ingredients of a \"true\" multi-touch display.\nTo make images appear under your fingers instead of over on the computer's screen, takes only a few more steps:\n1) Remove the IR filter from the camera so it can detect infrared, then add a filter over the lens to ignore visible light, so the camera only \"sees\" IR.\n2) Add an IR source inside the box, pointing up (many commercially available security cameras already come configured with IR \"blast\" arrays, or they can be purchased as a separate unit, or make your own).\n3) Exchange the tracing paper for a material that is still translucent yet allows IR light thru.\n4) Add a little LCD projector next to the camera in the box, also pointed up.\nNow your hands will be bathed in invisible infrared light. As your fingers approach and/or touch the surface, the camera \"sees\" IR blobs, which are then processed in software to differentiate touch and other gestures. The \"Touchlib\" library includes everything you need to process the images (as seen in the video). Now you project the image up onto the touch surface from below. The image is projected in the visible spectrum and so doesn't interfere with the IR blobs being received by the camera.\nThere is also a way to get crisper IR blobs, without bathing the user's hands in IR, by using a technology called \"Frustrated Total Internal Refraction\" (FTIR), popularized by Jeff Han. FTIR relies on the unique properties of acrylic sheet, e.g. it is extremely reflective on the inside surface, until touched (or until it gets dirty). By shooting IR into the edges of the sheet, touches are \"seen\" by the IR camera whenever the internal refractive properties of the acrylic are \"frustrated\" by being touched. Each touch bounces a blob of IR down into the camera.\nI've been having some great conversations about multi-touch lately. What constitutes multi-touch? Does dual-touch count? Can multi-touch be \"faked\" on a single-touch surface using close timing of events (e.g. milliseconds apart)? What if you use the same approach on a dual-touch surface? Is this how the iPhone works (e.g. software detection of finger-spacing)? What about the Macbook's dual-touch mousepad? How does that work, anyways? Which technologies are dominating, if any? Capacitive, grid o' wires, heat sensing, IR bath? Which approach is typically used for which commercial application?","domain":"optical_engineering"}